WorldWideScience

Sample records for chilean organizations

  1. [Chilean's nursing knowledge organization and their tendencies].

    Science.gov (United States)

    Parra, Sara Mendoza; Klijin, Tatiana Paravic

    2004-01-01

    A Quantitative, descriptive and retrospective research that explored the Chilean Nursing knowledge organization an their tendencies. The universe was composed by scientists reports published in the Chilean nursing journals between 1965 and 2003 (N=214). Data were collected by an instrument based on the CIPE's and Nogueira's classification and cienciometría indications. Statistics measures of central tendency analysis was managed with SPSS. Some of the results obtained were: the more frequent study subject's was the professional nursing and the tendency is to be focused at the mature people's health necessities and their risk of being ill. It was found: little theoretical nursing sustenance at the reports. The "Ciencia y Enfermería" is the journal that exhibits the best scientific quality of alls.

  2. Organic carbon in glacial fjords of Chilean Patagonia

    Science.gov (United States)

    Pantoja, Silvio; Gutiérrez, Marcelo; Tapia, Fabián; Abarzúa, Leslie; Daneri, Giovanni; Reid, Brian; Díez, Beatriz

    2016-04-01

    The Southern Ice Field in Chilean Patagonia is the largest (13,000 km2) temperate ice mass in the Southern hemisphere, yearly transporting ca. 40 km3 of freshwater to fjords. This volume of fresh and cold water likely affects adjacent marine ecosystems by changing circulation, productivity, food web dynamics, and the abundance and distribution of planktonic and benthic organisms. We hypothesize that freshwater-driven availability of inorganic nutrient and transport of organic and inorganic suspended matter, as well as microbes, become a controlling factor for productivity in the fjord associated with the Baker river and Jorge Montt glacier. Both appear to be sources of silicic acid, but not of nitrate and particulate organic carbon, especially during summer, when surface PAR and glacier thawing are maximal. In contrast to Baker River, the Jorge Montt glacier is also a source of dissolved organic carbon towards a proglacial fjord and the Baker Channel, indicating that a thorough chemical description of sources (tidewater glacier and glacial river) is needed. Nitrate in fiord waters reaches ca. 15 μM at 25 m depth with no evidence of mixing up during summer. Stable isotope composition of particulate organic nitrogen reaches values as low as 3 per mil in low-salinity waters near both glacier and river. Nitrogen fixation could be depleting δ15N in organic matter, as suggested by the detection at surface waters of nif H genes belonging to diazotrophs near the Montt glacier. As diazotrophs have also been detected in other cold marine waters (e.g. Baltic Sea, Arctic Ocean) as well as glaciers and polar terrestrial waters, there is certainly a potential for both marine and freshwater microbes to contribute and have a significant impact on the Patagonian N and C budgets. Assessing the impact of freshwater on C and N fluxes and the microbial community structure in Patagonian waters will allow understanding future scenarios of rapid glacier melting. This research was funded

  3. How depositional conditions control input, composition, and degradation of organic matter in sediments from the Chilean coastal upwelling region

    DEFF Research Database (Denmark)

    Niggemann, Jutta; Ferdelman, Timothy G.; Lomstein, Bente Aagaard;

    2007-01-01

    In a comprehensive study, we compared depositional conditions, organic matter (OM) composition, and organic carbon turnover in sediments from two different depositional systems along the Chilean continental margin: at ~23°S off Antofagasta and at ~36°S off Concepción. Both sites lie within...... investigated for excess 210Pb (210Pbxs) activity, total organic and total inorganic carbon concentrations (TOC and TIC, respectively), C/N-ratios, organic carbon isotopic compositions (d13C), chlorin concentrations, Chlorin Indices (CI), and sulfate reduction rates (SRR). Sediment accumulation rates obtained...... from 210Pb-analysis were similar in both regions (0.04‑0.15 cm yr‑1 at 23°S, 0.10‑0.19 cm yr‑1 at 36°S), although total 210Pbxs fluxes indicated that the vertical particle flux was higher at 36°S than at 23°S. We propose that sediment focusing in isolated deposition centers led to high sediment...

  4. Allochthonous subsidies of organic matter across a lake-river-fjord landscape in the Chilean Patagonia: Implications for marine zooplankton in inner fjord areas

    Science.gov (United States)

    Vargas, Cristian A.; Martinez, Rodrigo A.; San Martin, Valeska; Aguayo, Mauricio; Silva, Nelson; Torres, Rodrigo

    2011-03-01

    Ecosystems can act as both sources and sinks of allochthonous nutrients and organic matter. In this sense, fjord ecosystems are a typical interface and buffer zone between freshwater systems, glaciated continents, and the coastal ocean. In order to evaluate the potential sources and composition of organic matter across fjord ecosystems, we characterized particulate organic matter along a lake-river-fjord corridor in the Chilean Patagonia using stable isotope (δ 13C) and lipid (fatty acid composition) biomarker analyses. Furthermore, estimates of zooplankton carbon ingestion rates and measurements of δ 13C and δ 15N in zooplankton (copepods) were used to evaluate the implications of allochthonous subsidies for copepods inhabiting inner fjord areas. Our results showed that riverine freshwater flows contributed an important amount of dissolved silicon but, scarce nitrate and phosphate to the brackish surface layer of the fjord ecosystem. Isotopic signatures of particulate organic matter from lakes and rivers were distinct from their counterparts in oceanic influenced stations. Terrestrial allochthonous sources could support around 68-86% of the particulate organic carbon in the river plume and glacier melting areas, whereas fatty acid concentrations were maximal in the surface waters of the Pascua and Baker river plumes. Estimates of carbon ingestion rates and δ 13C in copepods from the river plume areas indicated that terrestrial carbon could account for a significant percentage of the copepod body carbon (20-50%) during periods of food limitation. Particulate organic matter from the Pascua River showed a greater allochthonous contribution of terrigenous/vascular plant sources. Rivers may provide fjord ecosystems with allochthonous contributions from different sources because of the distinct vegetation coverage and land use along each river's watershed. These observations have significant implications for the management of local riverine areas in the context of

  5. [Chilean nuclear policy].

    Science.gov (United States)

    Bobadilla, E

    1996-06-01

    This official document is statement of the President of the Chilean Nuclear Energy Commission, Dr. Eduardo Bobadilla, about the nuclear policy of the Chilean State, Thanks to the international policy adopted by presidents Aylwin (1990-1994) and his successor Frei Ruiz Tagle (1994-), a nuclear development plan, protected by the Chilean entrance to the nuclear weapons non proliferation treaty and Tlatelolco Denuclearization treaty, has started. Chile will be able to develop without interference, an autonomous nuclear electrical system and other pacific uses of nuclear energy. Chile also supports a new international treaty to ban nuclear weapon tests.

  6. [The Chilean Association of Biomedical Journal Editors].

    Science.gov (United States)

    Reyes, H

    2001-01-01

    On September 29th, 2000, The Chilean Association of Biomedical Journal Editors was founded, sponsored by the "Comisión Nacional de Investigación Científica y Tecnológica (CONICYT)" (the Governmental Agency promoting and funding scientific research and technological development in Chile) and the "Sociedad Médica de Santiago" (Chilean Society of Internal Medicine). The Association adopted the goals of the World Association of Medical Editors (WAME) and therefore it will foster "cooperation and communication among Editors of Chilean biomedical journals; to improve editorial standards, to promote professionalism in medical editing through education, self-criticism and self-regulation; and to encourage research on the principles and practice of medical editing". Twenty nine journals covering a closely similar number of different biomedical sciences, medical specialties, veterinary, dentistry and nursing, became Founding Members of the Association. A Governing Board was elected: President: Humberto Reyes, M.D. (Editor, Revista Médica de Chile); Vice-President: Mariano del Sol, M.D. (Editor, Revista Chilena de Anatomía); Secretary: Anna María Prat (CONICYT); Councilors: Manuel Krauskopff, Ph.D. (Editor, Biological Research) and Maritza Rahal, M.D. (Editor, Revista de Otorrinolaringología y Cirugía de Cabeza y Cuello). The Association will organize a Symposium on Biomedical Journal Editing and will spread information stimulating Chilean biomedical journals to become indexed in international databases and in SciELO-Chile, the main Chilean scientific website (www.scielo.cl).

  7. Supply Management Analysis of the Chilean Navy Acquisition System

    Science.gov (United States)

    2014-12-01

    1. Generic supply chain diagram (from Sanders, 2012) ......................................11 Figure 2. Chilean Navy Logistics Organization...Sanders, 2012). Supply chain management involves the following activities (Monczka et al., 2009, pp. 17–19). • Purchasing or procurement • Inbound ...it will be measured, and how the data obtained will be used (Monczka et al., 2009). Some examples of indicators used inside the military logistics

  8. The Chilean Health System: 20 Years of Reforms

    Directory of Open Access Journals (Sweden)

    Manuel Annick

    2002-01-01

    Full Text Available The Chilean health care system has been intensively reformed in the past 20 years. Reforms under the Pinochet government (1973-1990 aimed mainly at the decentralization of the system and the development of a private sector. Decentralization involved both a deconcentration process and the devolution of primary health care to municipalities. The democratic governments after 1990 chose to preserve the core organization but introduced reforms intended to correct the system's failures and to increase both efficiency and equity. The present article briefly explains the current organization of the Chilean health care system. It also reviews the different reforms introduced in the past 20 years, from the Pinochet regime to the democratic governments. Finally, a brief discussion describes the strengths and weaknesses of the system, as well as the challenges it currently faces.

  9. Sulphur-cycling bacteria and ciliated protozoans in a Beggiatoaceae mat covering organically enriched sediments beneath a salmon farm in a southern Chilean fjord.

    Science.gov (United States)

    Aranda, Carlos P; Valenzuela, Cristian; Matamala, Yessica; Godoy, Félix A; Aranda, Nicol

    2015-11-15

    The colourless mat covering organically enriched sediments underlying an intensive salmon farm in Estero Pichicolo, southern Chile, was surveyed by combined 454 PyroTag and conventional Sanger sequencing of 16S/18S ribosomal RNA genes for Bacteria and Eukarya. The mat was dominated by the sulphide-oxidizing bacteria (SOB) Candidatus Isobeggiatoa, Candidatus Parabeggiatoa and Arcobacter. By order of their abundances, sulphate-reducing bacteria (SRB) were represented by diverse deltaproteobacterial Desulfobacteraceae, but also within Desulfobulbaceae, Desulfuromonadaceae and Desulfovibrionaceae. The eukaryotic PyroTags were dominated by polychaetes, copepods and nematodes, however, ciliated protozoans were highly abundant in microscopy observations, and were represented by the genera Condylostoma, Loxophyllum and Peritromus. Finally, the abundant Sulfurimonas/Sulfurovum also suggest the occurrence of zero-valence sulphur oxidation, probably derived from Beggiatoaceae as a result of bacteriovorus infaunal activity or generated as free S(0) by the Arcobacter bacteria. The survey suggests an intense and complex sulphur cycle within the surface of salmon-farm impacted sediments.

  10. Reflections on the Chilean Transition

    Directory of Open Access Journals (Sweden)

    Antonia SANTOS PÉREZ

    2016-05-01

    Full Text Available Chile has historically excelled in Latin America for its political stability and its institutional strength, which did not prevent it from living under an authoritarian regime (1973-1988. The political transition was a consequence of a fast political pact between the military and a strong political class that led to a limited democracy because of the origin and content of the Constitution, partially overcome by the constitutional reform of 2005. However, the slow development of the Chilean democratic process is due to both the institutional framework and the behavior of the political actors who have favored political stability based on consensus before the plurality of competition and the political debate for the sake of democratic quality.

  11. Amino acid biogeo- and stereochemistry in coastal Chilean sediments

    DEFF Research Database (Denmark)

    Lomstein, Bente Aagaard; Jørgensen, Bo Barker; Schubert, Carsten J.;

    2006-01-01

    The spatial distribution of total hydrolysable amino acids (THAA) and amino acid enantiomers (D- and L-forms) was investigated in sediments underlying two contrasting Chilean upwelling regions,: at ~23°S off Antofagasta and at ~36°S off Concepcion. The contribution of amino acids to total organic...... carbon (%TAAC: 7-14%) and total nitrogen (%TAAN: 23-38%) in surface sediments decreased with increasing water depth (from 126 to 1350 m) indicating that organic matter becomes increasingly decomposed in surface sediments at greater water depth. Changes in the ratio between the protein amino acid...... aspartate and its non-protein degradation product β-alanine confirmed this observation. Furthermore, estimates of THAA mineralization showed that sedimentary amino acid reactivity decreased with both increasing water depth as well as progressive degradation status of the organic matter that was incorporated...

  12. ICT & Learning in Chilean Schools: Lessons Learned

    Science.gov (United States)

    Sanchez, Jaime; Salinas, Alvaro

    2008-01-01

    By the early nineties a Chilean network on computers and education for public schools had emerged. There were both high expectancies that technology could revolutionize education as well as divergent voices that doubted the real impact of technology on learning. This paper presents an evaluation of the Enlaces network, a national Information and…

  13. Fostering Teaching Quality in Chilean Universities

    Science.gov (United States)

    Guzman Cruzat, Jose Antonio

    2013-01-01

    This study aims to explain the strategies that have been carried out by three Chilean universities in order to advance the quality of their teaching. The studied institutions are the Universidad de los Andes, the Universidad de Talca and the Universidad Catolica de Chile. In each of these three cases the analysis included, both the policies…

  14. Report on the 2010 Chilean earthquake and tsunami response

    Science.gov (United States)

    ,

    2011-01-01

    In July 2010, in an effort to reduce future catastrophic natural disaster losses for California, the American Red Cross coordinated and sent a delegation of 20 multidisciplinary experts on earthquake response and recovery to Chile. The primary goal was to understand how the Chilean society and relevant organizations responded to the magnitude 8.8 Maule earthquake that struck the region on February 27, 2010, as well as how an application of these lessons could better prepare California communities, response partners and state emergency partners for a comparable situation. Similarities in building codes, socioeconomic conditions, and broad extent of the strong shaking make the Chilean earthquake a very close analog to the impact of future great earthquakes on California. To withstand and recover from natural and human-caused disasters, it is essential for citizens and communities to work together to anticipate threats, limit effects, and rapidly restore functionality after a crisis. The delegation was hosted by the Chilean Red Cross and received extensive briefings from both national and local Red Cross officials. During nine days in Chile, the delegation also met with officials at the national, regional, and local government levels. Technical briefings were received from the President’s Emergency Committee, emergency managers from ONEMI (comparable to FEMA), structural engineers, a seismologist, hospital administrators, firefighters, and the United Nations team in Chile. Cities visited include Santiago, Talca, Constitución, Concepción, Talcahuano, Tumbes, and Cauquenes. The American Red Cross Multidisciplinary Team consisted of subject matter experts, who carried out special investigations in five Teams on the (1) science and engineering findings, (2) medical services, (3) emergency services, (4) volunteer management, and (5) executive and management issues (see appendix A for a full list of participants and their titles and teams). While developing this

  15. Constructing Realities: Bullying Usages in Chilean Discourses

    Directory of Open Access Journals (Sweden)

    Rodrigo Bassaletti-Contreras

    2013-07-01

    Full Text Available The article reports an exploratory research on the uses given in Chile to the Anglicism bullying. In order to do so, its evolution is reviewed from the early studies in the Nordic countries, to the treatment of the topic in the Chilean context. The focus of this work is based on socioconstructionism and in turn promotes the consideration of the characteristics of the socio-cultural and historical context of knowledge production with a postcolonial intention. To review the constructions on the subject, we selected Chilean videos at the YouTube virtual platform, using as methodology discourse analysis and dense description. In results can be observed two meanings of bullying: (i to refer to any kind of aggression and (ii as a homologous of abuse among schoolchildren. In response, it is realized the discrepancy with the proposed definitions from general academia and those used in the local environment in investigations, interventions, public policy and mass media in Chile.

  16. An overview of Chilean Marine Sciences Journals

    OpenAIRE

    2005-01-01

    The work provides a global vision of Chilean marine sciences journals, besides the problems that have existed in relation to their edition and publication. In spite of being serious publications with rich scientific content related to the study area, mainly along the coast of the eastern South Pacific, these journals have not reached the expected levels to be considered within the ISI system journals. With the purpose of obtaining an objective appreciation in regard to the presentation format...

  17. Uniparental ancestry markers in Chilean populations

    Directory of Open Access Journals (Sweden)

    Camilla Dutra Vieira-Machado

    Full Text Available Abstract The presence of Native Americans, Europeans, and Africans has led to the development of a multi-ethnic, admixed population in Chile. This study aimed to contribute to the characterization of the uniparental genetic structure of three Chilean regions. Newborns from seven hospitals in Independencia, Providencia, Santiago, Curicó, Cauquenes, Valdívia, and Puerto Montt communes, belonging to the Chilean regions of Santiago, Maule, and Los Lagos, were studied. The presence of Native American mitochondrial DNA (mtDNA haplogroups and two markers present in the non-recombinant region of the Y chromosome, DYS199 and DYS287, indicative of Native American and African ancestry, respectively, was determined. A high Native American matrilineal contribution and a low Native American and African patrilineal contributions were found in all three studied regions. As previously found in Chilean admixed populations, the Native American matrilineal contribution was lower in Santiago than in the other studied regions. However, there was an unexpectedly higher contribution of Native American ancestry in one of the studied communes in Santiago, probably due to the high rate of immigration from other regions of the country. The population genetic sub-structure we detected in Santiago using few uniparental markers requires further confirmation, owing to possible stratification for autosomal and X-chromosome markers.

  18. The CHilean Automatic Supernova sEarch

    DEFF Research Database (Denmark)

    Hamuy, M.; Pignata, G.; Maza, J.

    2012-01-01

    The CHilean Automatic Supernova sEarch (CHASE) project began in 2007 with the goal to discover young, nearby southern supernovae in order to (1) better understand the physics of exploding stars and their progenitors, and (2) refine the methods to derive extragalactic distances. During the first...... four years of operation, CHASE has produced more than 130 supernovae, being the most successful project of its type in the southern hemisphere. Here we describe the project and present illustrative examples of CHASE discoveries of particular relevance....

  19. [Ethics code of the Chilean Biological Society].

    Science.gov (United States)

    de Etica, C; Valenzuela, C; Cruz-Coke, R; Ureta, T; Bull, R

    1997-01-01

    The Chilean Biological Society has approved an ethics code for researchers, elaborated by its Ethic Committee. The text, with 16 articles, undertakes the main ethical problems that researchers must solve, such as institutional, professional or societal ethics, scientific fraud, breaches in collaborative work, relationships between researchers, participation in juries and committees, ethical breaches in scientific publications, scientific responsibility and punishments. This code declares its respect and valorization of all life forms and adheres to international biomedical ethical codes. It declares that all knowledge, created or obtained by researchers is mankind's heritage.

  20. Mercury content in Chilean fish and estimated intake levels.

    Science.gov (United States)

    Cortes, Sandra; Fortt, Antonia

    2007-09-01

    The intake of fish products is a major public health concern due to possible methyl mercury exposure, which is especially toxic to the human nervous system. This pilot study (n = 46) was designed to determine mercury concentrations in fish products for national consumption (Chilean jack mackerel, hake, Chilean mussel, tuna) and for export (salmon, Patagonian toothfish, swordfish, southern hake), and to estimate the exposure of the general population. The fish products were collected from markets in Talcahuano, Puerto Montt and Santiago. Samples were analyzed at the National Environmental Center by cold vapor atomic absorption spectrophotometry. Mercury levels in swordfish and one canned tuna sample exceeded levels prescribed by national and international standards. The remaining two export products (Patagonian toothfish, also known as Chilean sea bass, and salmon) complied with international limits, which are more demanding than Chilean regulations. Theoretical estimates of mercury intake varied from 0.08 to 3.8 microg kg(-1) bw day(-1) for high fish consumers, exceeding the provisional tolerable intake for tuna, Chilean seabass, Chilean jack mackerel and swordfish. This group appears to be at the greatest risk from mercury contamination among the Chilean population.

  1. Evaluation of quality of life in Chilean patients with orthognathic surgery. A cohort study.

    Directory of Open Access Journals (Sweden)

    Macarena Cea-Herrera

    2016-12-01

    Full Text Available To compare the presurgical and immediate postsurgical quality of life in Chilean patients with orthognathic surgery. Material and Methods: Cohort study. The study included 30 patients (mean age 20.73, 53.33% male who underwent orthognathic surgery primarily for severe skeletal abnormalities, (17 surgeries, 56.7% and moderate skeletal abnormalities (12 surgeries, 40%, from three Chilean hospitals between February and June 2016. Patients were asked to answer the World Health Organization quality of life Bref version questionnaire (WHOQOL-BREF validated in Spanish to measure quality of life (QoL two weeks before and three months after the surgery. Scores for general QoL and for every domain of QoL were described. Variations in the scores of general QoL were analyzed according to sex and severity of orofacial malformation (mild, moderate or severe (t-test p<0.05; STATA 10.0. Results: The average score for QoL according to the WHOQOL-BREF scale was 76.43±13.83 before surgery and 90.5±7.18 three months after surgery (p<0.001. Statistically significant differences according to sex and type of orofacial malformation were found (p<0.01. An increase in the score in all the domains of the WHOQOOL-BREF scale was observed. Conclusion: Orthognathic surgery significantly improved QoL scores in Chilean patients according to the WHOQOL-BREF scale.

  2. Report on the 2010 Chilean earthquake and tsunami response

    Science.gov (United States)

    ,

    2011-01-01

    In July 2010, in an effort to reduce future catastrophic natural disaster losses for California, the American Red Cross coordinated and sent a delegation of 20 multidisciplinary experts on earthquake response and recovery to Chile. The primary goal was to understand how the Chilean society and relevant organizations responded to the magnitude 8.8 Maule earthquake that struck the region on February 27, 2010, as well as how an application of these lessons could better prepare California communities, response partners and state emergency partners for a comparable situation. Similarities in building codes, socioeconomic conditions, and broad extent of the strong shaking make the Chilean earthquake a very close analog to the impact of future great earthquakes on California. To withstand and recover from natural and human-caused disasters, it is essential for citizens and communities to work together to anticipate threats, limit effects, and rapidly restore functionality after a crisis. The delegation was hosted by the Chilean Red Cross and received extensive briefings from both national and local Red Cross officials. During nine days in Chile, the delegation also met with officials at the national, regional, and local government levels. Technical briefings were received from the President’s Emergency Committee, emergency managers from ONEMI (comparable to FEMA), structural engineers, a seismologist, hospital administrators, firefighters, and the United Nations team in Chile. Cities visited include Santiago, Talca, Constitución, Concepción, Talcahuano, Tumbes, and Cauquenes. The American Red Cross Multidisciplinary Team consisted of subject matter experts, who carried out special investigations in five Teams on the (1) science and engineering findings, (2) medical services, (3) emergency services, (4) volunteer management, and (5) executive and management issues (see appendix A for a full list of participants and their titles and teams). While developing this

  3. Association between eating behavior scores and obesity in Chilean children

    OpenAIRE

    Amador Paola; Obregón Ana M; Cataldo Rodrigo; Domínguez-Vásquez Patricia; Smalley Susan V; González Andrea; Ho-Urriola Judith A; Santos José L; Weisstaub Gerardo; Hodgson M Isabel

    2011-01-01

    Abstract Background Inadequate eating behavior and physical inactivity contribute to the current epidemic of childhood obesity. The aim of this study was to assess the association between eating behavior scores and childhood obesity in Chilean children. Design and methods We recruited 126 obese, 44 overweight and 124 normal-weight Chilean children (6-12 years-old; both genders) according to the International Obesity Task Force (IOTF) criteria. Eating behavior scores were calculated using the ...

  4. Wine tourism : a review of the Chilean case

    OpenAIRE

    Kunc, Martin

    2010-01-01

    Wine tourism has become a thriving niche in global tourism industry with successful cases like Napa Valley in the USA with 19 million visitors per year. However, there are important disparities among wine regions. The paper analyses the case of the Chilean wine tourism, which is one of the regions with less wine tourists although it is very important in global wine industry, and its reasons for its low level of development. Chilean wine industry has been developing its infrastructure in wine ...

  5. Nutrition education in Chilean primary schools.

    Science.gov (United States)

    Olivares, Sonia; Zacarías, Isabel; Andrade, Margarita; Kain, Juliana; Lera, Lydia; Vio, Fernando; Morón, Cecilio

    2005-06-01

    The purpose of this study was to incorporate nutrition education in Chilean primary schools. The baseline information included nutritional status, food consumption and physical activity of 1701 children from 3rd to 7th grade in ten urban and rural schools. Main results showed a high prevalence of obesity (15.4%) and overweight (19.6%), low consumption of vegetables, fruits, and dairy products, high intake of snacks and a low level of physical activity, especially in girls. Because the Ministry of Education does not allow the incorporation of new programs into the curriculum, the educational strategy was based on the development of a text book, a teacher's guide, five practical guides for students from third to eighth grade and a CD-Rom. These materials were validated by 36 teachers in six schools through an educational intervention. Teachers and students considered the educational materials useful, motivational and easy to understand. This program is being implemented in 57 schools.

  6. The impact of Chilean migration on employment in Patagonia.

    Science.gov (United States)

    Cariola Sanz, L

    1989-06-01

    This paper discusses the employment situation of Chilean migrant workers, their impact on labor markets in Patagonia, Argentina, and the government's past and projected responses to this phenomenon. In 1980, Chilean inhabitants of patagonia comprised 11% of the area's population. Chilean migration to patagonia was closely linked to economic activities that began to flourish in the 20th century, such as livestock raising, fruit and vegetable cultivation, and mining for coal and petroleum. No Chilean migrants work in a wide range of sectors. In Patagonia's southern provinces availability and ability to withstand rigorous climate conditions are the main factors which account for the prevalence of Chilean manpower. Chilean migrants do not in general displace local manpower. Legislation and the permeability of the border ensure that most workers enter the country as tourists. Clandestine migration is not an issue. Illegal migrants have provoked negative reactions for several reasons: 1) they comprise a marginal population without formal citizenship; 2) being employed as clandestine workers, they pay no social security, nor do their employers; 3) being illegal, they are obliged to accept lower wages and inferior working conditions which creates unfair competition within labor markets; and 4) as a result of these conditions, xenophobic and endophobic attitudes in relations with Argentine nationalists are reinforced. The government has attempted to solve these problems through various measures. Beginning in 1934, most foreigners entered Argentina with a tourist visa, becoming illegal when they stayed beyond authorized limits. Several measures over the years provided amnesty to illegal migrants. Currently, the law promotes immigration, monitors the admission of foreigners to the country and stipulates their rights and obligations. The law lists 115 articles on immigration promotion and on regulation of the movements of foreigners. Because of the present economic crisis in

  7. A statistical approach to disentangle environmental forcings in a lacustrine record: the Lago Chungará case (Chilean Altiplano)

    OpenAIRE

    Giralt, Santiago; Moreno Caballud, Ana; Bao, Roberto; Sáez, Alberto; Prego, R.; Valero-Garcés, Blas L.; Pueyo Mur, Juan José; González-Sampériz, Penélope; Taberner, Conxita

    2008-01-01

    A high resolution multiproxy study (magnetic susceptibility, x-ray diffraction, XRF scanner, gray-colour values, Total Organic Carbon, Total Inorganic Carbon, Total Carbon and Total Biogenic Silica) of the sedimentary infill of Lago Chungará (northern Chilean Altiplano) was undertaken to unravel the environmental forcings controlling its evolution using a number of different multivariate statistical techniques. Redundancy Analyses enabled us to identify the main provenance of the studied prox...

  8. Minimun Pension Insurance in the Chilean Pension System Minimun Pension Insurance in the Chilean Pension System

    Directory of Open Access Journals (Sweden)

    Salvador Zurita

    1994-03-01

    Full Text Available One of the "social" features of the Chilean individual capitalization pension system is the minimum pension scheme. which guarantees its members a minimum pension irrespective of the funds they accumulate, with the only requirement of twenty years of social security tax payments. The purpose of this paper is to estimate the implicit fiscal subsidy, using an option-based approach. We capture the risk associated to the returns on the pension fund account of a worker by modeling its value as a diffusion process and show the correspondence between the minimum pension insurance and a financial put option. Our results are the present value of the minimum pension benefit, equivalent to 3 percent of Chilean GDP for current active and non-active affiliated workers. These estimates are notoriously higher than previous results based on deterministic models, and strongly suggest the importance of explicitly considering the risk associated to pension assets when estimating the cost to the government of the insurance implied by the minimum pension benefit. One of the "social" features of the Chilean individual capitalization pension system is the minimum pension scheme. which guarantees its members a minimum pension irrespective of the funds they accumulate, with the only requirement of twenty years of social security tax payments. The purpose of this paper is to estimate the implicit fiscal subsidy, using an option-based approach. We capture the risk associated to the returns on the pension fund account of a worker by modeling its value as a diffusion process and show the correspondence between the minimum pension insurance and a financial put option. Our results are the present value of the minimum pension benefit, equivalent to 3 percent of Chilean GDP for current active and non-active affiliated workers. These estimates are notoriously higher than previous results based on deterministic models, and strongly suggest the importance of explicitly considering

  9. Results of Chilean water markets: Empirical research since 1990

    Science.gov (United States)

    Bauer, Carl J.

    2004-09-01

    Chile's free-market Water Code turned 20 years old in October 2001. This anniversary was an important milestone for both Chilean and international debates about water policy because Chile has become the world's leading example of the free-market approach to water law and water resources management, the textbook case of treating water rights not merely as private property but also as a fully marketable commodity. The predominant view outside of Chile is that Chilean water markets and the Chilean model of water management have been a success, and this perception has encouraged other countries to follow Chile's lead in water law reform. Much of the debate about Chilean water markets, however, has been based more on theoretical or political beliefs than on empirical study. This paper reverses that emphasis by reviewing the evolution of empirical research about these markets since 1990, when Chile returned to democratic government after 16 years of military rule. During the period since 1990, understanding of how Chilean water markets have worked in practice has gradually improved. There have been two major trends in this research: first, a gradual shift from exaggerated claims of the markets' success toward more balanced assessments of mixed results and, second, a heavy emphasis on the economics of water rights trading with very little attention given to the Water Code's impacts on social equity, river basin management, environmental protection, or resolution of water conflicts. The analysis in this study is qualitative and interdisciplinary, combining law, economics, and institutions.

  10. Anthropometric profile of elite Chilean Paralympic athletes

    Directory of Open Access Journals (Sweden)

    Samuel Durán-Agüero

    2016-12-01

    Full Text Available Introduction: Sport is one of the most popular social events worldwide. It becomes interesting to characterize its practitioners, even more in some poorly studied groups such as Paralympic athletes. The main objective of this study is to determine the anthropometric profile of Chilean Elite Paralympic Athletes (CEPA through body composition and somatotype. Material and Methods: A cross-sectional study was conducted with 41 subjects (93% of the classified to the Para-Panamerican Games Toronto 2015, who practiced table tennis (n=6, football 5 (n=11, swimming (n=8, rugby (n=7, powerlifting (n=6 and wheelchair tennis (n=3. The body composition and somatotype were assessed through the protocol described by the International Society for the Advancement of Kinanthropometry (ISAK. Results: The CEPA reach an average for that classifies somatotype mostly as meso-endomorphic (5.3 - 7.8 - 0.5, a BMI of 27.4 kg/m2, and body composition for fat mass reaches 29.8% in women and 25.7% in men, while muscle mass gain 42.6% (women and 44.5% (men. Conclusions: The CEPA have a somatotype profile that classifies mostly as meso-endomorphic, body composition has a predominance muscle mass and high fat mass, although is similar to other Paralympics athletes.

  11. HIV prevention and low-income Chilean women

    Science.gov (United States)

    CIANELLI, ROSINA; FERRER, LILIAN; MCELMURRY, BEVERLY J.

    2008-01-01

    Socio-cultural factors and HIV-related misinformation contribute to the increasing number of Chilean women living with HIV. In spite of this, and to date, few culturally specific prevention activities have been developed for this population. The goal of the present study was to elicit the perspectives of low-income Chilean women regarding HIV and relevant socio-cultural factors, as a forerunner to the development of a culturally appropriate intervention. As part of a mixed-methods study, fifty low-income Chilean women participated in a survey and twenty were selected to participate in prevention, in-depth interviews. Results show evidence of widespread misinformation and misconceptions related to HIV/AIDS. Machismo and marianismo offer major barriers to prevention programme development. Future HIV prevention should stress partner communication, empowerment and improving the education of women vulnerable to HIV. PMID:18432428

  12. The 2011 Chilean Student Movement against Neoliberal Educational Policies

    Science.gov (United States)

    Bellei, Cristián; Cabalin, Cristian; Orellana, Víctor

    2014-01-01

    This paper analyses the 2011 Chilean student movement, the most relevant social mobilisation in Chile since the restoration of democracy in 1990. Based on available material and secondary sources, it describes the main features of this student movement, analyses the key components of the students' discourse and its relationship with the Chilean…

  13. Association between eating behavior scores and obesity in Chilean children

    Directory of Open Access Journals (Sweden)

    Amador Paola

    2011-10-01

    Full Text Available Abstract Background Inadequate eating behavior and physical inactivity contribute to the current epidemic of childhood obesity. The aim of this study was to assess the association between eating behavior scores and childhood obesity in Chilean children. Design and methods We recruited 126 obese, 44 overweight and 124 normal-weight Chilean children (6-12 years-old; both genders according to the International Obesity Task Force (IOTF criteria. Eating behavior scores were calculated using the Child Eating Behavior Questionnaire (CEBQ. Factorial analysis in the culturally-adapted questionnaire for Chilean population was used to confirm the original eight-factor structure of CEBQ. The Cronbach's alpha statistic (>0.7 in most subscales was used to assess internal consistency. Non-parametric methods were used to assess case-control associations. Results Eating behavior scores were strongly associated with childhood obesity in Chilean children. Childhood obesity was directly associated with high scores in the subscales "enjoyment of food" (P Conclusion Our study shows a strong and graded association between specific eating behavior scores and childhood obesity in Chile.

  14. Quality of Chilean Early Childhood Education from an International Perspective.

    Science.gov (United States)

    Villalon, Malva; Suzuki, Emy; Herrera, Maria Olivia; Mathiesen, Maria Elena

    2002-01-01

    Assessed the quality of different types of early childhood care and education programs in Chile according to international standards. Recorded structural and process characteristics observed in the classrooms. Found that Chilean preschool programs showed a minimum level of quality, with a high proportion of centers in the inadequate range.…

  15. Prevalence and risk factors for bruises in Chilean bovine carcasses

    NARCIS (Netherlands)

    Strappini, A.C.; Frankena, K.; Metz, J.H.M.; Kemp, B.

    2010-01-01

    Records of cattle slaughtered at two Chilean slaughterhouses (SLH1 and SLH2) were used to determine prevalence and risk factors for carcasses with bruises. Bruise prevalence amounted to 12.3% but differed between slaughterhouses (20.8% for SLH1 and 8.6% for SLH2 respectively). Bruise severity grade

  16. Chilean Adolescents' and Parents' Views on Autonomy Development

    Science.gov (United States)

    Martínez, M. Loreto; Pérez, J. Carola; Cumsille, Patricio

    2014-01-01

    This study aims to understand Chilean parents' and adolescents' conceptions of autonomy and whether they hold different expectations for autonomous behaviors by generation and socioeconomic level. A qualitative approach to data collection was used through separate focus groups of parents and adolescents from different socioeconomic condition.…

  17. [Profile of social problem solving and coping profile in anxious and depressed Chileans].

    Science.gov (United States)

    Kramp, Uwe

    2012-11-01

    According to the Pan American Health Organization and the World Health Organization, in 2020, depression will become the second cause of disability worldwide. In Chile, anxiety and depressive disorders account for almost 28% of the total years of healthy life lost due to illness. This research seeks to explore a profile of social problem solving and coping present in people who suffer from anxious and depressive symptoms. The sample consisted of 1179 analogous Chilean participants (55.9% women), with a mean of 22.23 years (range between 18-48 years). The results suggest statistically significant differences for all social problem solving and coping strategies evaluated. Thus, if anxious or depressive symptoms increase, social problem solving or coping strategies become less adaptive.

  18. Last millenium environmental changes in Lake Bertrand sediments, Chilean Patagonia

    Science.gov (United States)

    Sacré, V.; Fagel, N.; Schmidt, S.; Alvarez, D.; Araneda, A.; Urrutia, R.

    2012-04-01

    Our study focuses on a multiproxy analysis of sedimentary records from Lago Bertrand (area 50 km2; 227 masl; 46°55'S 72°50'W). Three cores were retrieved during fieldtrips in 2009 and 2011 with an Uwitec gravity corer. One core was collected in the main lake (LBt09, 102 cm) and two others in a lateral extension (LBb11-A, 162 cm and LBb11-B, 156 cm). Data 210Pb and 137Cs give average sedimentation rates of 2 mm/yr for the upper core section from the main lake, allowing a decennial resolution. Our aim is to document the climatic variability during the last millennium in Northern Patagonia and its impact on the environment. Lago Bertrand is separated from a pro-glacial lake (Lago Plomo) by a morainic barrier. The sediments of this lake are mainly composed of clayed silts and very few sandy silts. In the cores from the Eastern branch of Lago Bertrand, X-ray radiographies and magnetic susceptibility profiles evidence well-defined pluri-millimetric laminations with organic-rich layers, especially in the central core section. In the main lake, X-ray radiographies show diffuse pluri-millimetric laminations while magnetic susceptibility profiles do not confirm it. The sediments of the main lake appear more homogeneous with less organic-rich layers. They are characterized by low C/N ratio (10), supporting an important aquatic productivity; high inorganic content (90-95% of the bulk sediment); two peaks in the biological silica profile; and abundant diatoms (50-100 µm). According to the age model, the changes in aquatic productivity occurred between 1700 and 1850 AD. The cores from the Eastern branch of Lago Bertrand are under investigation to confirm the extension of the sedimentological changes observed in the main lake. The main sedimentological change observed in Lago Bertrand occurs during an interval equivalent to a part of the Little Ice Age. A similar biogenic silica-rich layer was also recorded in another relatively distant lake (Lago Thompson at 45°30'S, 72°47

  19. Prevalence and risk factors for bruises in Chilean bovine carcasses.

    Science.gov (United States)

    Strappini, A C; Frankena, K; Metz, J H M; Gallo, B; Kemp, B

    2010-11-01

    Records of cattle slaughtered at two Chilean slaughterhouses (SLH1 and SLH2) were used to determine prevalence and risk factors for carcasses with bruises. Bruise prevalence amounted to 12.3% but differed between slaughterhouses (20.8% for SLH1 and 8.6% for SLH2 respectively). Bruise severity grade 1 (mild) was most frequently recorded. The type of the animal, source of animal, the level of fat cover and lairage time were associated with the presence of bruises. Older categories of animals and animals that pass through a market before being moved to the slaughterhouse are more prone to show bruises. The results also indicate that under the reported Chilean circumstances animals that have longer lairage times (over 12 h) have a significantly reduced risk for bruises, except for oxen. Presence of bruises is also significantly associated with increased carcass pH values.

  20. Genetic structure characterization of Chileans reflects historical immigration patterns.

    Science.gov (United States)

    Eyheramendy, Susana; Martinez, Felipe I; Manevy, Federico; Vial, Cecilia; Repetto, Gabriela M

    2015-03-17

    Identifying the ancestral components of genomes of admixed individuals helps uncovering the genetic basis of diseases and understanding the demographic history of populations. We estimate local ancestry on 313 Chileans and assess the contribution from three continental populations. The distribution of ancestry block-length suggests an average admixing time around 10 generations ago. Sex-chromosome analyses confirm imbalanced contribution of European men and Native-American women. Previously known genes under selection contain SNPs showing large difference in allele frequencies. Furthermore, we show that assessing ancestry is harder at SNPs with higher recombination rates and easier at SNPs with large difference in allele frequencies at the ancestral populations. Two observations, that African ancestry proportions systematically decrease from North to South, and that European ancestry proportions are highest in central regions, show that the genetic structure of Chileans is under the influence of a diffusion process leading to an ancestry gradient related to geography.

  1. Women and changes in the Chilean economy: some questions.

    Science.gov (United States)

    Smiaroski, M S

    1996-10-01

    The author argues that a new development model that encourages greater participation of women in the work force in domestic piecework, temporary work, and subcontracting may further lead to the exploitation of women in Chile. The importance of women in economic development in Chile should be based on building skills, providing support child care services, reorienting women's education, and tax incentives. Chile over the past decade has achieved relatively stable economic growth and increased employment of women. During 1990-93 the growth of women in the work force increased at a rate of 16.8%, while men's presence increased by only 9.8%. The Chilean economy is based on a sophisticated modern sector and a labor-intensive informal sector. The Chilean model of development relies on cheap, flexible labor and a government approval of this model. Increased participation of women in the labor force is usually perceived as increased economic empowerment. A 1994 Oxfam study found that women were being forced into the labor market due to declines in family income and low wages. 46% of men and women received wages that did not cover basic necessities. The Chilean labor market is gender-stratified. Men are paid better than women for the same work. Men are in more permanent positions. Labor laws are either inadequate or violated, particularly for hours of work and overtime pay and conditions of employment and benefits. Traditional female jobs are those that rely on women's natural attributes. These unskilled attributes are rewarded with low wages. Little opportunity is provided for upgrading skills or acquiring new skills. Some women turn down advancement because of a lack of role models. Women have little opportunity to develop their self-image as workers. Poor self-images affect women's work attitudes and motivation. Some firms use competition between women to boost production. Chilean women remain in subordinate roles.

  2. Educational Opportunity and Contentious Politics: The 2011 Chilean Student Movement

    OpenAIRE

    Salinas, Daniel; Fraser, Pablo

    2012-01-01

    The 2011 Chilean student movement was one of the most massive and original processes of social mobilization in Latin America in the last decade. Led by university students, the movement challenged the longstanding free-market orientation of educational policies in Chile, demanding a more active role for the State in the regulation and supply of education. In this article, we study the main educational and social factors that explain the emergence of the movement. We draw upon social movement ...

  3. A New Liquidity Risk Measure for the Chilean Banking Sector

    OpenAIRE

    Sebastián Becerra; Gregory Claeys; Juan Francisco Martínez

    2015-01-01

    The objective of this work is to construct an appropriate measure of liquidity risk for Chilean banks. There are already several measures of liquidity risk in the literature. Most of these metrics are based on specific assumptions and expert opinion. In order to overcome the potential problems associated with discretionary assumptions, and to exploit the information available, similar to the work of Drehman and Nikolaou (2012), we propose a metric based on the behavior of banks in the procure...

  4. [ANTHROPOMETRIC CHILEAN TABLE TENNIS PLAYERS OF COMPETITIVE FEATURES].

    Science.gov (United States)

    Yáñez Sepúlveda, Rodrigo; Barraza, Fernando; Rosales Soto, Giovanni; Báez, Eduardo; Tuesta, Marcelo

    2015-10-01

    The aim of the study was to characterize the anthropometric profile and somatotype of a sample of 50 players table tennis competitive with an average age 21.6 (± 3.1) years belonging to the Chilean team and institutions of higher education in the region of Valparaiso. The evaluation was conducted under the protocol marking the International Society for the Advancement of Kinanthropometry (ISAK) for the measurement procedure 25 restricted profile variables described by Drinkwater, Norton and Olds. Order to determine the body composition, fat, muscle, bone, skin and tissue residual was considered, using the equations proposed by Kerr. The body shape is characterized through somatotype method proposed by Carter. The sample was divided into 4 groups; Chilean Selection, Traditional Private Universities, State Universities and Private Universities Traditional Nontraditional. Regarding body composition; the Chilean team has the highest values of muscle tissue (45.6 ± 1.7%) and the lowest values of adipose tissue (25.2 ± 1.8%), also presenting lesser value in the Σ 6 skinfolds (mm) . The results showed no significant differences between groups in the aforementioned variables. In general somatotype compared by analyzing SANOVA no significant differences between groups (p = 0.409) was observed. The results show a biotype with such a characterization of endo-mesomorph with average values (4,1-4,9-1,8). This study provides updated data biotypological reference for this sport that can be used for decision-making.

  5. Textura, materia orgánica y composición química elemental (C y N de sedimentos marinos superficiales de la zona Puerto Montt a Boca del Guafo (Norpatagonia chilena Grain size, total organic matter, organic carbon, inorganic carbon and organic nitrogen in surface marine sediments from Puerto Montt to Boca del Guafo (Chilean North Patagonia

    Directory of Open Access Journals (Sweden)

    Nelson Silva

    2010-01-01

    Full Text Available Se determinó la distribución horizontal de la textura, concentración de materia orgánica, carbono orgánico e inorgánico y nitrógeno orgánico, del sedimento en muestras superficiales, recolectadas entre Puerto Montt y Boca del Guafo, durante los cruceros CIMAR 10 Fiordos (2004, CIMAR 11 Fiordos (2005 y CIMAR 12 Fiordos (2006. La distribución superficial de las características químicas permitió identificar dos zonas: una norte, entre Puerto Montt y el grupo de islas Desertores-Apiao-Quehui-Lemuy con concentraciones, que en general fueron altas (MOT > 5%, C-org > 1,6%, C-inorg >0,4% y N-org > 0,2%, y una sur, entre dicho grupo de islas y la Boca del Guafo con concentraciones, en general, bajas (MOT 7,5%, C-org >2,4%, C-inorg >0,4% y N-org >0,2%. La textura de las muestras marinas fue arenosa y limo-arcillosa, siendo la presencia de grava escasa e inferior al 4% en algunas muestras. El sedimento terrígeno del borde de los ríos fue preferentemente arenoso. La procedencia del sedimento (marino versus terrígeno se infirió sobre la base de los valores de la relación C:N. Este resultó ser, mayoritariamente de origen marino, con la excepción de los fiordos continentales en que la componente terrígena fue importante.The horizontal distribution of the organic matter, organic and inorganic carbon, organic nitrogen content, and surface sediment texture was determined between Puerto Montt and Boca del Guafo using samples collected during the cruises CIMAR 10 Fiordos (2004, CIMAR 11 Fiordos (2005 and CIMAR 12 Fiordos (2006. Two zones were identified: the northern zone (from Puerto Montt to the Desertores-Apiao-Quehui-Lemuy island group had mostly high concentrations (TOM >5%; C-org >1.6%; C-inorg >0.4% and N-org > 0.2% the southern zone (from the same island group to Boca del Guafo had mostly low concentrations (TOM 7.5%, C-org > 2.4%, C-inorg > 0.4% and N-org > 0.2%. The texture of the marine sediments was mostly sand and silt + clay

  6. Measures of Cost Economies in Chilean Banking: 1984-1991 Measures of Cost Economies in Chilean Banking: 1984-1991

    Directory of Open Access Journals (Sweden)

    Bharat B. Nauriyal

    1995-03-01

    Full Text Available This paper presents measures of cost economies in Chilean banking following the many regulatory and structural changes implemented by Chilean authorities in the aftermath of the 1981-83 financial system crisis. Utilizing panel, and annual cross section monthly data on 37 individual banking institutions in operation over 1984-91, a translogarithmic cost specification is adopted to estimate economies of scale and scope. My findings suggest the presence of persistent and significant economies of scale. Weaker evidence on the presence of economies of scope is also detected. These findings are of additional importance as the estimation methodology adopted overcomes an inherent flaw in most other similar studies that lump together different sizes of financial institutions for a cross sectional analysis over a one or two year period. This paper presents measures of cost economies in Chilean banking following the many regulatory and structural changes implemented by Chilean authorities in the aftermath of the 1981-83 financial system crisis. Utilizing panel, and annual cross section monthly data on 37 individual banking institutions in operation over 1984-91, a translogarithmic cost specification is adopted to estimate economies of scale and scope. My findings suggest the presence of persistent and significant economies of scale. Weaker evidence on the presence of economies of scope is also detected. These findings are of additional importance as the estimation methodology adopted overcomes an inherent flaw in most other similar studies that lump together different sizes of financial institutions for a cross sectional analysis over a one or two year period.

  7. PRESENCE OF MYCOBACTERIUM AVIUM SUBSP. PARATUBERCULOSIS IN ALPACAS (LAMA PACOS) INHABITING THE CHILEAN ALTIPLANO.

    Science.gov (United States)

    Salgado, Miguel; Sevilla, Iker; Rios, Carolina; Crossley, Jorge; Tejeda, Carlos; Manning, Elizabeth

    2016-03-01

    Mycobacterium avium subsp. paratuberculosis (MAP) is the etiologic agent of paratuberculosis. The organism causes disease in both domestically managed and wild ruminant species. South American camelids have a long, shared history with indigenous people in the Andes. Over the last few decades, increasing numbers of alpacas were exported to numerous countries outside South America. No paratuberculosis surveillance has been reported for these source herds. In this study, individual fecal samples from 85 adult alpacas were collected from six separate herds in the Chilean Altiplano. A ParaTB mycobacterial growth indicator tube (MGIT) liquid culture of each individual fecal sample, followed by real-time polymerase chain reaction (PCR) protocol was used for confirmation. DNA extracts from a subset of confirmed MAP isolates were subjected to mycobacterial interspersed repetitive units-variable number of tandem repeats (MIRU-VNTR) typing. Fifteen alpaca were fecal culture test-positive. Five false-positive culture samples were negative on PCR analysis for Mycobacterium avium subsp. avium (MAA), Mycobacterium bovis (M. bovis), and the 16 S rDNA gene. Three MAP isolates subset-tested belonged to the same MIRU-VNTR type, showing four repeats for TR292 (locus 1) in contrast to the three repeats typical of the MAP reference strain K10. The number of repeats found in the remaining loci was identical to that of the K10 strain. It is not known how nor when MAP was introduced into the alpaca population in the Chilean Altiplano. The most plausible hypothesis to explain the presence of MAP in these indigenous populations is transmission by contact with infected domestic small ruminant species that may on occasion share pastures or range with alpacas. Isolation of this mycobacterial pathogen from such a remote region suggests that MAP has found its way beyond the confines of intensively managed domestic agriculture premises.

  8. Preliminary measurements of gamma radiation in Chilean Antarctic Stations

    Energy Technology Data Exchange (ETDEWEB)

    Stuardo B, E. (Comision Chilena de Energia Nuclear, Santiago. Dept. de Aplicaciones Nucleares)

    1983-11-01

    Natural and artificial gamma radiation, 1 m above the soil, is being investigated in 4 Chilean Antartic Stations. The measurements are performed with different types of TLD detectors. Preliminary results in the Tte. Marsh Station are reported and discussed. An average exposition of 3,5 ..mu..R/h was found during a 108 days period. This exposition corresponds to an annual dose of about 40 mrad, 8% of the annual dose limit for individual of the public. The presence of low energy artificial radioisotopes was not found.

  9. Chilean Euphorbiaceae species as sources of fuels and raw chemicals

    Energy Technology Data Exchange (ETDEWEB)

    Gnecco, S.; Bartulin, J.; Marticorena, C.; Ramirez, A.

    1988-01-01

    The potential of some species of Chilean Euphorbiaceae as sources of hydrocarbon-like materials was evaluated. Samples of plants excluding roots, were analyzed for CH/sub 2/Cl/sub 2/ extractives, resins and hydrocarbons. The presence of waxes and natural rubber (cis-1,4-polyisoprene) was confirmed using spectroscopic and chromatographic methods. C/H values for representative fractions were calculated and extracted samples from selected species analyzed for apparent protein contents. Results suggested that at least two species, Euphorbia lactiflua and Euphorbia copiapina might have an industrial potential.

  10. Misconception p value among Chilean and Italian academic psychologists

    Directory of Open Access Journals (Sweden)

    Laura Badenes-Ribera

    2016-08-01

    Full Text Available The p value misconceptions are based on certain beliefs and attributions about the significance of the results. Thus, they affect the professionals’ decisions and jeopardize the quality of interventions and the accumulation of valid scientific knowledge. We conducted a survey on 164 academic psychologists (134 Italians, 30 Chileans, questioned on this topic. Our findings are consistent with original research and suggest that some participants do not know how to correctly interpret p values. The inverse probability fallacy presents the greatest comprehension problems, followed by the replication fallacy. These results highlight the importance of the statistical re-education of researchers. Recommendations for improving statistical cognition are proposed.

  11. Demographic and labor market in the Chilean countryside Transformations

    Directory of Open Access Journals (Sweden)

    Carlos René Rodríguez Garcés

    2016-12-01

    Full Text Available Based on the information provided by the National Socioeconomic Survey of 1990 and 2013, the Chilean countryside reconfigurations are analyzed in terms of their demographic trends and labor market restructuring. A continuous process of depopulation and aging of the rural population is demographically notes. The agricultural activities of the rural labor market charge less important in terms of jobs and income, showing a strong process and favoring deagrarianisation positioning services area. Finally, a growing number of households that hold informal consensual unions and a greater presence of single-parent households, mainly consisting of female-headed households is observed.

  12. Geographical classification of Chilean wines by an electronic nose

    Directory of Open Access Journals (Sweden)

    Nicolás H Beltrán

    2009-08-01

    Full Text Available Nicolás H Beltrán, Manuel A Duarte-Mermoud, Ricardo E MuñozDepartment of Electrical Engineering, University of Chile, Santiago, ChileAbstract: This paper discusses the classification of Chilean wines by geographical origin based only on aroma information. The varieties of Cabernet Sauvignon, Merlot, and Carménère analyzed here are produced in four different valleys in the central part of Chile (Colchagua, Maipo, Maule, and Rapel. Aroma information was obtained with a zNoseTM (fast gas chromatograph and the data was analyzed by applying wavelet transform for feature extraction followed by an analysis with support vector machines for classification. Two evaluations of the classification technique were performed; the average percentage of correct classification performed on the validation set was obtained by means of cross-validation against the percentage of correct classification obtained on the test set. This developed technique obtained results on classification rates over 94% in both cases. The geographical origin of a Chilean wine can be resolved rapidly with fast gas chromatography and data processing.Keywords: geographical origin, origin denomination, wine classification, pattern recognition, support vector machines, wavelet analysis, feature extraction

  13. Antimicrobial activity of submerged cultures of Chilean basidiomycetes.

    Science.gov (United States)

    Aqueveque, Pedro; Anke, Timm; Saéz, Katia; Silva, Mario; Becerra, José

    2010-10-01

    This study is part of a screening program aimed at searching for bioactive metabolites from Chilean basidiomycetes. Submerged cultivation of fungal mycelia in liquid media was evaluated for antimicrobial activity. A total of 148 strains were obtained in vitro. The extracts produced from submerged cultures were evaluated against bacteria and fungi. In the primary antimicrobial assay, approximately 60% of the extracts presented positive biological activity. The highest frequencies of active strains were from the orders Agaricales (31.0%), Polyporales (20.6%), Sterales (18.3%), Boletales (11.4%), and Cortinariales (9.1%). Antifungal activity was more pronounced than antibacterial activity. Twelve extracts that exhibited strong antimicrobial activity showed minimum inhibitory concentration (MIC) values of 50 µL/mL against Bacillus brevis and 25∼50 µL/mL against Penicillium notatum and Paecilomyces variotii. The biological activity of some strains did not vary considerably, regardless of the substrate or collection site whereas, for others, it showed marked variations. Differences in antimicrobial activities observed in the different fungal genera suggested that the ability to produce bioactive compounds is not homogenously distributed among basidiomycetes. The information obtained from this study reveals that Chilean basidiomycetes are able to generate small and/or large variations in the normal pathway of compounds production. Thus, it is necessary to evaluate this biological and chemical wealth, which could be an unsuspected reservoir of new and potentially useful molecules.

  14. Chilean management education: rhetoric of pragmatism, consumerism, individualism and elitism

    Directory of Open Access Journals (Sweden)

    Marcela Mandiola Cotroneo

    Full Text Available The aim of this paper is to understand the character and the role of higher education in business in relation to the wider institutional and structural contexts within which they function. Being loyal to that widespread background, business schools in Chile have become efficient providers of appropriate goods and services for their respective clients and consumers, behaving more like corporations and businesses rather than educational institutions. From this perspective, business education's alignment with the wider political and socio-economic shifts associated with the developments of market economies and economic globalization is a necessary reflection. In this paper we will provide an account of our problematization of management education practices in Chile. This practice was pictured as one of the main characters at the forefront of the Chilean neo-liberal revolution during the final years of the last century. In particular, we will unravel more closely the chain of signifiers articulating the meaning of Chilean higher business education. This articulation is recuperated mainly around how those involved in the management education practice talk about (ourthemselves. As well as specialised press writings, some academic accounts and fragments from our own 'ethnographic' involvement are used for this purpose. Particular attention is paid to the social, political and fantasmatic logics (GLYNOS; HOWARTH, 2007 as key elements of our own explanation of this practice, which in turn informs our critical standpoint.

  15. Leadership lessons from the Chilean mine rescue.

    Science.gov (United States)

    Rashid, Faaiza; Edmondson, Amy C; Leonard, Herman B

    2013-01-01

    Three years ago, when a cave-in at the San José mine in Chile trapped 33 men under 700,000 metric tons of rock, experts estimated the probability of getting them out alive at less than 1%. Yet, after spending a record 69 days underground, all 33 were hoisted up to safety. The inspiring story of their rescue is a case study in how to lead in situations where the stakes, risk, and uncertainty are incredibly high and time pressure is intense. Today executives often find themselves in similar straits. When they do, many feel torn. Should they be directive, taking charge and commanding action? Or should they be empowering, enabling innovation and experimentation? As the successful example of André Sougarret, the chief of the mine rescue operation, shows, the answer is yes--to both. The choice is a false dichotomy. Implementing this dual approach involves three key tasks. Each has directive and enabling components. The first task is envisioning, which requires instilling both realism and hope. The second task is enrolling, which means setting clear boundaries for who is on and off the team, but inviting in helpful collaborators. The third task is engaging--leading disciplined execution while encouraging innovation and experimentation. The authors of this article describe how Sougarret ably juggled all of these tasks, orchestrating the efforts of hundreds of people from different organizations, areas of expertise, and countries in an extraordinary mission that overcame impossible odds.

  16. Towards a cleaner production in developing countries: a case study in a Chilean tannery.

    Science.gov (United States)

    Rivela, Beatriz; Méndez, Ranón; Bornhardt, Cristian; Vidal, Gladys

    2004-06-01

    A Chilean leather tanning industry (tannery) was studied in terms of input/output (I/O) analysis of beamhouse, tanyard and retanning processes. The physical-chemical characterization of 19 streams were investigated. Streams from the beamhouse process and some streams from the retanning process were found to have high organic contents ranging from 2.5 to 18.1 g COD L(-1). The pH ranged between 3.45 and 12.28. Sulphur was found in most of the streams whereas chromium was detected in two wastewaters from the tanyard and in seven streams from the retanning process. Pollution prevention opportunities were evaluated and an appropriate treatment strategy was proposed. The main emphasis was on determining waste reduction measures that can be easily implemented and are not particularly expensive. Measures for reduction at source were proposed to reduce water and chemicals consumption and wastewater pollution. A so-called S(index) strategy was used to evaluate proposals on segregation and specific treatment of the main chromium- and sulphur-containing wastewaters. It was suggested that some streams may be re-used, but it is necessary to apply anaerobic or aerobic treatment first, depending on their organic load. Solid wastes were also evaluated and a proposal for their reduction and disposal was made.

  17. Level of evidence and geographic origin of articles published in Chilean dental journals.

    OpenAIRE

    Javier Moraga

    2014-01-01

    The aim of this study is to determine the geographic origin and level of evidence (LE) of articles published in Chilean dental journals during 2012. The target population for the bibliometric study was articles published in exclusively-scientific Chilean dental journals. These variables were analyzed: journal, area, language, country, region, design, scenario, and LE. A total of 120 articles were published in four journals: International Journal of Odontostomatology (IJOS=59), Revista Clínic...

  18. Justified Ilegality?: Controlled clientelism by the Chilean administration

    Directory of Open Access Journals (Sweden)

    Marcelo Moriconi Bezerra

    2011-07-01

    Full Text Available The Chilean civil service is considered one of the most efficient in Latin America. However, different studies describe the informal institutions that operate between the Legislative Power and the bureaucracy to fill positions in the public administration. Although some of these clientelistic practices are against the law, they have been accepted and defended in both the political and scientific spheres. Legality is not considered an important value if certain indexes have a positive development. In this context, it is important to study how corruption and clientelism have been ignored, or hidden, through political discourses and technical reports about the situation of bureaucracy. All of this allows a better understanding of why after 20 years of administrative reforms there are damaging practices which negatively affect democracy that have not been eradicated.

  19. Simple Tool to Evaluate Airtightness in Chilean Homes

    Directory of Open Access Journals (Sweden)

    Alex González Cáceres

    2016-10-01

    Full Text Available Given the high impact that air leaks have on buildings’ energy expenses, most developed countries have set out norms which regulate their presence in homes. Chile will soon begin this process; however, the airtightness revision strategy in envelopes has not been resolved as of yet. This article presents a tool to Assess Airtightness in Design, EHeD. The software will allow predicting the performance of homes under the regulations which will be set out, aiding designers, builders or owners to make decisions when making changes to improve airtightness. EHeD has been validated through pressurization tests in diverse homes across the country, with results that are in line with expectations, thus validating its calculation model. The methodology considers three stages: determining the main factors that have an impact on the airtightness in Chilean homes, preparing an airtightness database for each component (wall, windows and doors and preparing a calculation model that is integrated in an IT interface.

  20. Chilean prosopis mesocarp flour: phenolic profiling and antioxidant activity.

    Science.gov (United States)

    Schmeda-Hirschmann, Guillermo; Quispe, Cristina; Soriano, Maria Del Pilar C; Theoduloz, Cristina; Jiménez-Aspée, Felipe; Pérez, Maria Jorgelina; Cuello, Ana Soledad; Isla, Maria Inés

    2015-04-17

    In South America, the mesocarp flour of Prosopis species plays a prominent role as a food resource in arid areas. The aim of this work was the characterization of the phenolic antioxidants occurring in the pod mesocarp flour of Chilean Prosopis. Samples were collected in the Copiapo, Huasco and Elqui valleys from the north of Chile. The samples of P. chilensis flour exhibited a total phenolic content ranging between 0.82-2.57 g gallic acid equivalents/100 g fresh flour weight. The highest antioxidant activity, measured by the DPPH assay, was observed for samples from the Huasco valley. HPLC-MS/MS analysis allowed the tentative identification of eight anthocyanins and 13 phenolic compounds including flavonol glycosides, C-glycosyl flavones and ellagic acid derivatives. The antioxidant activity and the phenolic composition in the flour suggest that this ancient South American resource may have potential as a functional food.

  1. Chilean Prosopis Mesocarp Flour: Phenolic Profiling and Antioxidant Activity

    Directory of Open Access Journals (Sweden)

    Guillermo Schmeda-Hirschmann

    2015-04-01

    Full Text Available In South America, the mesocarp flour of Prosopis species plays a prominent role as a food resource in arid areas. The aim of this work was the characterization of the phenolic antioxidants occurring in the pod mesocarp flour of Chilean Prosopis. Samples were collected in the Copiapo, Huasco and Elqui valleys from the north of Chile. The samples of P. chilensis flour exhibited a total phenolic content ranging between 0.82–2.57 g gallic acid equivalents/100 g fresh flour weight. The highest antioxidant activity, measured by the DPPH assay, was observed for samples from the Huasco valley. HPLC-MS/MS analysis allowed the tentative identification of eight anthocyanins and 13 phenolic compounds including flavonol glycosides, C-glycosyl flavones and ellagic acid derivatives. The antioxidant activity and the phenolic composition in the flour suggest that this ancient South American resource may have potential as a functional food.

  2. VOCALS-CUpEx: the Chilean Upwelling Experiment

    Science.gov (United States)

    Garreaud, R. D.; Rutllant, J. A.; Muñoz, R. C.; Rahn, D. A.; Ramos, M.; Figueroa, D.

    2011-03-01

    The VAMOS Ocean-Cloud-Atmosphere-Land Study Regional Experiment (VOCALS-REx) was a major field experiment conducted in spring of 2008 off southern Peru and northern Chile, aimed at better understanding the coupled climate systems of the southeast Pacific. Because of logistical constrains, the coastal area around 30° S was not sampled during VOCALS-REx. This area not only marks the poleward edge of the subtropical stratocumulus cloud regime (thus acting as a source of transient disturbances) but is also one of the most active upwelling centers and source of surface ocean kinetic energy along the Chilean coast. To fill such an observational gap, a small, brief, but highly focused field experiment was conducted in late spring 2009 in the near-shore region around 30° S. The Chilean Upwelling Experiment (CUpEx) was endorsed by VOCALS as a regional component. CUpEx included long-term monitoring, an intensive two-week field campaign and off-shore research flights. Our goal was to obtain an atmospheric/oceanic dataset with enough temporal and spatial coverage to be able to document (a) the mean diurnal cycles of the lower-troposphere and upper-ocean in a region of complex topography and coastline geometry, and (b) the ocean-atmosphere response to the rapid changes in coastal winds from strong, upwelling-favorable equatorward flow (southerly winds) to downwelling-favorable poleward flow (northerly winds). In this paper we describe the measurement platforms and sampling strategy, and provide an observational overview, highlighting some key mean-state and transient features.

  3. Helicobacter pylori infection and gastrointestinal symptoms on Chilean pregnant women

    Directory of Open Access Journals (Sweden)

    Gina Ferrer Poveda

    2014-07-01

    Full Text Available Objective: the aim of this research was to determine the prevalence of Helicobacter pylori infection on Chilean pregnant women and its relationship with the appearance and severity of hyperemesis and dyspepsia. Methods: quantitative study of prevalence in a transversal cut with variable analysis. The sample was taken from 274 Chilean pregnant women from the Bío Bío province through vein puncture between June and December, 2005. Pregnant women were informed of this study, interviewed and signed an informed consent. The samples were processed using ImmunoComb II Helicobacter pylori IgG kit. Statistical analysis was performed by means of the Statistical Package for Social Sciences (SPSS Program. Results: out of the total number of pregnant women, 68.6% showed infection by Helicobacter pylori. 79.6% of the total sample had symptoms of dyspepsia, and 72.5% of this group presented Helicobacter pylori infection. 12.4% showed pregnancy hyperemesis; among them, 79.4% were infected with Helicobacter pylori. 73.4% of the pregnant women that showed gastric discomfort during the first three months had Helicobacter pylori infection. 53.7% of them continued with gastric discomfort after the first three months; of those, 95.8% were infected. Helicobacter pylori infection was present only in 1.5% of pregnant women without gastric discomfort. Conclusion: both, gastric discomfort of pregnant women and the continuity of severe symptoms of dyspepsia and hyperemesis after the first three months of gestation are significantly correlated with Helicobacter pylori infection.

  4. Bayesian spatiotemporal interpolation of rainfall in the Central Chilean Andes

    Science.gov (United States)

    Ossa-Moreno, Juan; Keir, Greg; McIntyre, Neil

    2016-04-01

    Water availability in the populous and economically significant Central Chilean region is governed by complex interactions between precipitation, temperature, snow and glacier melt, and streamflow. Streamflow prediction at daily time scales depends strongly on accurate estimations of precipitation in this predominantly dry region, particularly during the winter period. This can be difficult as gauged rainfall records are scarce, especially in the higher elevation regions of the Chilean Andes, and topographic influences on rainfall are not well understood. Remotely sensed precipitation and topographic products can be used to construct spatiotemporal multivariate regression models to estimate rainfall at ungauged locations. However, classical estimation methods such as kriging cannot easily accommodate the complicated statistical features of the data, including many 'no rainfall' observations, as well as non-normality, non-stationarity, and temporal autocorrelation. We use a separable space-time model to predict rainfall using the R-INLA package for computationally efficient Bayesian inference, using the gridded CHIRPS satellite-based rainfall dataset and digital elevation models as covariates. We jointly model both the probability of rainfall occurrence on a given day (using a binomial likelihood) as well as amount (using a gamma likelihood or similar). Correlation in space and time is modelled using a Gaussian Markov Random Field (GMRF) with a Matérn spatial covariance function which can evolve over time according to an autoregressive model if desired. It is possible to evaluate the GMRF at relatively coarse temporal resolution to speed up computations, but still produce daily rainfall predictions. We describe the process of model selection and inference using an information criterion approach, which we use to objectively select from competing models with various combinations of temporal smoothing, likelihoods, and autoregressive model orders.

  5. Indo-European and Asian origins for Chilean and Pacific chickens revealed by mtDNA.

    Science.gov (United States)

    Gongora, Jaime; Rawlence, Nicolas J; Mobegi, Victor A; Jianlin, Han; Alcalde, Jose A; Matus, Jose T; Hanotte, Olivier; Moran, Chris; Austin, Jeremy J; Ulm, Sean; Anderson, Atholl J; Larson, Greger; Cooper, Alan

    2008-07-29

    European chickens were introduced into the American continents by the Spanish after their arrival in the 15th century. However, there is ongoing debate as to the presence of pre-Columbian chickens among Amerindians in South America, particularly in relation to Chilean breeds such as the Araucana and Passion Fowl. To understand the origin of these populations, we have generated partial mitochondrial DNA control region sequences from 41 native Chilean specimens and compared them with a previously generated database of approximately 1,000 domestic chicken sequences from across the world as well as published Chilean and Polynesian ancient DNA sequences. The modern Chilean sequences cluster closely with haplotypes predominantly distributed among European, Indian subcontinental, and Southeast Asian chickens, consistent with a European genetic origin. A published, apparently pre-Columbian, Chilean specimen and six pre-European Polynesian specimens also cluster with the same European/Indian subcontinental/Southeast Asian sequences, providing no support for a Polynesian introduction of chickens to South America. In contrast, sequences from two archaeological sites on Easter Island group with an uncommon haplogroup from Indonesia, Japan, and the Philippines [corrected] and may represent a genetic signature of an early Polynesian dispersal. Modeling of the potential marine carbon contribution to the Chilean archaeological specimen casts further doubt on claims for pre-Columbian chickens, and definitive proof will require further analyses of ancient DNA sequences and radiocarbon and stable isotope data from archaeological excavations within both Chile and Polynesia.

  6. ‘With a Little Help from My Friends’: The Dutch Solidarity Movement and the Chilean Struggle for Democracy

    Directory of Open Access Journals (Sweden)

    Mariana Perry

    2016-04-01

    Full Text Available This article explores the political interaction that took place during the 1970s and 1980s between Chilean refugees and the local solidarity movement in the Netherlands. The analysis of the Dutch political context during the 1970s facilitates an understanding of the positive reception of Dutch society to Chilean refugees and the long-lasting impact that the Chilean case had on Dutch politics. The article also asserts that though Dutch solidarity was essential for maintaining international attention in denouncing the Pinochet regime, the international dimension for redemocratization began when the Chilean community in exile organized itself according to democratic principles. In this sense, the article places the foundation of the Institute for a New Chile as the main contribution of the Netherlands to the democratic transition in Chile, since in the space provided by the Institute, Chilean refugees could debate and spread the ideas of ‘Renovation’, in an atmosphere of political tolerance. This ultimately contributed to the unification of a democratic opposition in exile and the decision to defeat the Pinochet regime through democratic means. Resumen: ‘Con un poco de ayuda de mis amigos’: El movimiento holandés de solidaridad y la lucha chilena por la democracia Este artículo explora la interacción política que tuvo lugar durante los años 1970 y 1980 entre los refugiados chilenos y el movimiento de solidaridad en los Países Bajos. El análisis del contexto político holandés durante la década de 1970 permite entender la buena acogida que la sociedad holandesa tuvo con los refugiados chilenos y el impacto duradero que el caso chileno causó en la política holandesa. Además el artículo afirma que, si bien la solidaridad holandesa fue esencial para mantener el compromiso internacional en denunciar al régimen de Pinochet, la dimensión internacional de la redemocratización comienza cuando la comunidad chilena en el exilio se

  7. Phylogeography in Galaxias maculatus (Jenyns, 1848) along Two Biogeographical Provinces in the Chilean Coast

    Science.gov (United States)

    González-Wevar, Claudio A.; Salinas, Pilar; Hüne, Mathias; Segovia, Nicolás I.; Vargas-Chacoff, Luis; Astorga, Marcela; Cañete, Juan I.; Poulin, Elie

    2015-01-01

    Major geologic and climatic changes during the Quaternary exerted a major role in shaping past and contemporary distribution of genetic diversity and structure of aquatic organisms in southern South America. In fact, the northern glacial limit along the Pacific coast, an area of major environmental changes in terms of topography, currents, and water salinity, represents a major biogeographic transition for marine and freshwater species. We used mitochondrial DNA sequences (D-loop) to investigate the consequences of Quaternary glacial cycles over the pattern of genetic diversity and structure of G. maculatus (Pisces: Galaxiidae) along two biogeographical provinces in the Chilean coast. Extreme levels of genetic diversity and strong phylogeographic structure characterize the species suggesting a low amount of influence of the last glacial cycle over its demography. However, we recognized contrasting patterns of genetic diversity and structure between main biogeographical areas here analyzed. Along the Intermediate Area (38°–41° S) each estuarine population constitutes a different unit. In contrast, Magellanic populations (43°–53° S) exhibited low levels of genetic differentiation. Contrasting patterns of genetic diversity and structure recorded in the species between the analyzed biogeographic areas are consistent with the marked differences in abiotic factors (i.e., different coastal configurations, Quaternary glacial histories, and oceanographic regimes) and to inherent characteristics of the species (i.e., salt-tolerance, physiology, and reproductive behavior). PMID:26161896

  8. The Chilean Health System: 20 Years of Reforms El sistema de salud chileno: 20 años de reformas

    Directory of Open Access Journals (Sweden)

    Annick Manuel

    2002-01-01

    Full Text Available The Chilean health care system has been intensively reformed in the past 20 years. Reforms under the Pinochet government (1973-1990 aimed mainly at the decentralization of the system and the development of a private sector. Decentralization involved both a deconcentration process and the devolution of primary health care to municipalities. The democratic governments after 1990 chose to preserve the core organization but introduced reforms intended to correct the system's failures and to increase both efficiency and equity. The present article briefly explains the current organization of the Chilean health care system. It also reviews the different reforms introduced in the past 20 years, from the Pinochet regime to the democratic governments. Finally, a brief discussion describes the strengths and weaknesses of the system, as well as the challenges it currently faces.El sistema de salud chileno ha sido intensamente reformado en los últimos 20 años. Las reformas bajo el gobierno de Pinochet (1973-1990 apuntaron principalmente a la descentralización del sistema y al desarrollo del sector privado. La descentralización involucró un proceso de desconcentración y la devolución de las unidades de atención primaria a las municipalidades. Los gobiernos democráticos posteriores a 1990 escogieron preservar el núcleo organizacional, pero las reformas introducidas buscaron corregir las fallas del sistema y aumentar la eficacia y la equidad. El presente artículo explica brevemente la organización actual del sistema de salud chileno y revisa las diferentes reformas introducidas en los últimos 20 años desde el régimen de Pinochet hasta los gobiernos democráticos. Finalmente, presenta una discusión breve para describir las fortalezas y debilidades del sistema, así como los desafíos que enfrenta actualmente.

  9. Chilean Teachers Begin Exchange Program Visit in Magdalena

    Science.gov (United States)

    2007-01-01

    . Kelly. The Chilean teachers are visiting Magdalena while they are on their Southern Hemisphere summer vacation, and Magdalena's schools are in session. Two Magdalena teachers, Joleen Welborn and Sandra Montoya, will visit San Pedro in June, while they are on summer vacation and the Chilean schools will be in session. Dr. Eduardo Hardy, the AUI/NRAO representative in Chile, will accompany the Chilean teachers on their visit, which has been coordinated by Harrison. "ALMA is a groundbreaking example of the type of international cooperation that marks the future of astronomy. We are especially pleased to sponsor a program that brings together two communities that both enjoy proximity to world-class astronomical research facilities," said Dr. Fred K.Y. Lo, NRAO Director. "While separated by many miles, San Pedro de Atacama and Magdalena have much in common. Both are small communities in high desert environments, and both are next to telescopes where the world's astronomers will be making many exciting discoveries in the coming decades. Bringing these two communities together will advance education and international understanding," Harrison said. The National Radio Astronomy Observatory is a facility of the National Science Foundation, operated under cooperative agreement by Associated Universities, Inc.

  10. Waist Circumferences of Chilean Students: Comparison of the CDC-2012 Standard and Proposed Percentile Curves

    Science.gov (United States)

    Gómez-Campos, Rossana; Lee Andruske, Cinthya; Hespanhol, Jefferson; Sulla Torres, Jose; Arruda, Miguel; Luarte-Rocha, Cristian; Cossio-Bolaños, Marco Antonio

    2015-01-01

    The measurement of waist circumference (WC) is considered to be an important means to control overweight and obesity in children and adolescents. The objectives of the study were to (a) compare the WC measurements of Chilean students with the international CDC-2012 standard and other international standards, and (b) propose a specific measurement value for the WC of Chilean students based on age and sex. A total of 3892 students (6 to 18 years old) were assessed. Weight, height, body mass index (BMI), and WC were measured. WC was compared with the CDC-2012 international standard. Percentiles were constructed based on the LMS method. Chilean males had a greater WC during infancy. Subsequently, in late adolescence, males showed values lower than those of the international standards. Chilean females demonstrated values similar to the standards until the age of 12. Subsequently, females showed lower values. The 85th and 95th percentiles were adopted as cutoff points for evaluating overweight and obesity based on age and sex. The WC of Chilean students differs from the CDC-2012 curves. The regional norms proposed are a means to identify children and adolescents with a high risk of suffering from overweight and obesity disorders. PMID:26184250

  11. Waist Circumferences of Chilean Students: Comparison of the CDC-2012 Standard and Proposed Percentile Curves

    Directory of Open Access Journals (Sweden)

    Rossana Gómez-Campos

    2015-07-01

    Full Text Available The measurement of waist circumference (WC is considered to be an important means to control overweight and obesity in children and adolescents. The objectives of the study were to (a compare the WC measurements of Chilean students with the international CDC-2012 standard and other international standards, and (b propose a specific measurement value for the WC of Chilean students based on age and sex. A total of 3892 students (6 to 18 years old were assessed. Weight, height, body mass index (BMI, and WC were measured. WC was compared with the CDC-2012 international standard. Percentiles were constructed based on the LMS method. Chilean males had a greater WC during infancy. Subsequently, in late adolescence, males showed values lower than those of the international standards. Chilean females demonstrated values similar to the standards until the age of 12. Subsequently, females showed lower values. The 85th and 95th percentiles were adopted as cutoff points for evaluating overweight and obesity based on age and sex. The WC of Chilean students differs from the CDC-2012 curves. The regional norms proposed are a means to identify children and adolescents with a high risk of suffering from overweight and obesity disorders.

  12. Paleomagnetism of Permian and Triassic rock, central Chilean Andes

    Science.gov (United States)

    Forsythe, Randall D.; Kent, Dennis V.; Mpodozis, Constantino; Davidson, John

    The first paleomagnetic data from Permian and Triassic formations west of the Andean divide are presented. Four formations of Permian or Triassic age in the central Chilean Andes have been investigated: two are located in the coastal ranges, and two are in the main cordillera. Of the formations in the main cordillera (Pastos Blancos and Matahuaico formations), only the Pastos Blancos Formation has yielded characteristic directions. While a fold test is absent, magnetizations are most likely secondary and yield pre-tilt corrected concordant inclinations, but yield declinations discordant 30° clockwise in comparison to the South American apparent polar wander path. Both formations from the coastal ranges (Cifuncho and Pichidangui formations) yielded stable directions. Postfolding magnetizations in the Cifuncho Formation also show declinations discordant 30° clockwise and concordant inclinations. The Pichidangui Formation has two stable components: one of postfolding age is concordant to apparent polar wander path data, and one of probable prefolding (Late Triassic) age is concordant in declination, but discordant in inclination. Further work is needed to better define the prefolding magnetizations in the Pichidangui Formation, but at present these preliminary results are the first paleomagnetic signs of displaced terranes along the Pacific margin of Chile. If correct, the results suggest that the Pichidangui Formation was some 15° of latitude farther south during the Late Triassic and had likely moved northward to its present latitudinal position with respect to cratonic South America by Middle to Late Jurassic.

  13. Peer victimization: Intimidation and victmization in Chilean students

    Directory of Open Access Journals (Sweden)

    Verónica López

    2009-12-01

    Full Text Available This paper presents the results of a study about peer intimidation and victimization with 1167 school students from 6th, 7th, and 8th grade from the Valparaiso Region of Valparaíso, Chile. The instrument used was the Insebull Battery (Avilés & Elices, 2007. Results show that approximately 9% of students have been victim of peer victimization many times or almost every day during the school year. Psychological victimization was more frequent thanphysical aggression, particularly through virtual communication such as cell-phone messages and e-mails. Participants tend to be groups of male students. Although male students participate more in physical aggression, they also receive more physical and psychological aggression. The most frequent places were inside the classroom and the school yard, when the teacher is not present. Most students inform not knowing, or vaguely knowing, thereasons underlying these aggressions, and do not do anything to deal with them. These results coincide with international studies and allow a better understanding of the characteristics of peer victimization in specific educational contexts within the Chilean school system.

  14. TRADE POLICY AND MAJOR TRENDS IN CHILEAN EXPORTS UNDER DEMOCRACY, 1990-2012

    Directory of Open Access Journals (Sweden)

    Manuel Llorca-Jaña

    2015-06-01

    Full Text Available This paper deals with trade policy and the principal trends in Chilean exports after the return to democracy in 1990. During this period, both exports and imports expanded significantly in Chile. As far as exports are concerned, this boom is mainly due to an effective trade policy of additive regionalism, booming copper prices, export diversification and the economic dynamism of China, the principal beneficiary of Chilean exports. On the negative side, the country is still too dependant on copper and a few other primary products. In addition, nowadays, in relative terms Chile is exporting more copper minerals and less refined copper than it used to do in the 1990s, while Chilean exports remained highly concentrated in a few companies only, many of which belong to foreign nationals.

  15. Reporting quality of papers published in Chilean dental journals. Evaluation period: 2002-2012.

    Directory of Open Access Journals (Sweden)

    Sergio E Uribe

    2015-08-01

    Full Text Available Aim: To assess the reporting quality of papers published between 2002-2012 in Chilean dental journals. Methods: Bibliometric analysis of research papers published in indexed Chilean dental journals between 2002-2012. Three calibrated examinators (interoperator- Kappa=.83 assessed 205 papers: 150 case-reports, 37 observational studies and 18 clinical trials. Reporting quality was evaluated using CARE for case reports, STROBE for observational studies and CONSORT for clinical trials. Descriptive statistics were conducted. Results: Case-reports reported 35% of the required methodological items; epidemiological research reported 16% of required items for Materials and Methods and 10% for Results. Clinical research reported 29% of required Materials and Methods items and 20% of Results items. Conclusion: Case-report, epidemiological and clinician research papers in Chilean dental journals published during the 2002-2012 period are lacking explicit key methodological items, preventing a proper research replication or clinical application of the results.

  16. HIV prevention and low-income Chilean women: machismo, marianismo and HIV misconceptions.

    Science.gov (United States)

    Cianelli, Rosina; Ferrer, Lilian; McElmurry, Beverly J

    2008-04-01

    Socio-cultural factors and HIV-related misinformation contribute to the increasing number of Chilean women living with HIV. In spite of this, and to date, few culturally specific prevention activities have been developed for this population. The goal of the present study was to elicit the perspectives of low-income Chilean women regarding HIV and relevant socio-cultural factors, as a forerunner to the development of a culturally appropriate intervention. As part of a mixed-methods study, fifty low-income Chilean women participated in a survey and twenty were selected to participate in prevention, in-depth interviews. Results show evidence of widespread misinformation and misconceptions related to HIV/AIDS. Machismo and marianismo offer major barriers to prevention programme development. Future HIV prevention should stress partner communication, empowerment and improving the education of women vulnerable to HIV.

  17. Privatizing Water in the Chilean Andes: The Case of Las Vegas de Chiu-Chiu

    Directory of Open Access Journals (Sweden)

    Manuel Prieto

    2015-08-01

    Full Text Available The Chilean water model has been described as a textbook example of a free-market water system. This article contributes to the critiques of this model by showing the effect of its implementation in the Atacameño community of Chiu-Chiu, located in the Atacama Desert in the south-central Andes. In this community, the privatization of water rights ignored local water management practices that had produced a high-altitude wetland (known as a vega. This led to the inhabitants’ dispossession of crucial water rights and to wetland degradation. This process belies statements that the Chilean model relies on an unregulated market and instead highlights the state’s role in marginalizing local irrigation practices by reducing the water consumption of the indigenous population while keeping the copper mining industry (the main source of Chilean income and related growing urban populations supplied with water.

  18. Potential heterogeneity in crustacean zooplankton assemblages in southern chilean saline lakes

    Directory of Open Access Journals (Sweden)

    P De los Rios-Escalante

    Full Text Available The Chilean saline lakes are distributed mainly in the Atacama desert in northern Chile and the southern Patagonian plains. The scarce studies are restricted mainly to northern Chilean saline lakes, and these revealed that the main component in these ecosystems are the halophylic copepod Boeckella poopoensis Marsh 1906, or the brine shrimp Artemia franciscana (Kellog, 1906, and both species do not coexist. The present study consisted of field observations in zooplankton assemblages in southern Chilean saline lakes (51-53 ºS. These first observations revealed three different patterns, one saline lake only with A. persimilis (Piccinelli and Prosdocimi, 1968, a second lake only with B. poopensis, and a third lake with A. persimilis, B. poopoensis and unidentified harpacticoid copepod. These results are different in comparison with the observations in the literature that described the non-coexistence between B. poopoensis with brine shrimps. Ecological and biogeographical topics were discussed.

  19. Mismatch between classroom furniture and anthropometric measures in Chilean schools.

    Science.gov (United States)

    Castellucci, H I; Arezes, P M; Viviani, C A

    2010-07-01

    Children spend about five hours per day sitting down while doing their school work. Considering this as well as the potential inadequate use of school furniture, it is likely that some anatomical-functional changes and problems in the learning process may occur. The aim of this study was to compare furniture sizes within three different schools with the anthropometric characteristics of Chilean students in the Valparaíso region, in order to evaluate the potential mismatch between them. The sample consisted of 195 volunteer students (94 male, 101 female) of the 8th grade, ranging from 12.5 to 14.5 years of age from 3 different schools. Regarding the methodology, 6 anthropometric measures (Stature, Popliteal height, Buttock-popliteal length, Elbow height while sitting, Hip width, Thigh thickness and Subscapular height) were gathered, as well as 8 dimensions from the school furniture. For the evaluation of classroom furniture a match criterion equation was defined. After considering the existing classroom furniture dimensions in each match criterion equation, the anthropometric characteristics of the considered population were compared in order to determine the mismatch between them. Results indicated that seat height, which should be considered as the starting point for the design of classroom furniture, was appropriate for students' popliteal height in only 14% of the 2 out of the 3 schools, and 28% in the third. Seat to desk height was too high and mismatched 99% of the students in one school and 100% in the others. Therefore, it was possible to conclude that the classroom's furniture was inadequate in almost all the analyzed cases and subjects. It is possible that the high mismatch percentage found between furniture and students' anthropometry can be associated to the fact that the acquisition and selection of the furniture was made without any ergonomic concern or criteria.

  20. The biology and ecology of the jumbo squid Dosidicus gigas (Cephalopoda in Chilean waters: a review

    Directory of Open Access Journals (Sweden)

    Christian M Ibáñez

    2015-07-01

    Full Text Available ABSTRACT. The jumbo squid Dosidicus gigas is the most abundant cephalopod species in the southeastern Pacific Ocean, which supports the biggest cephalopod fishery in the world. Due to its growing economic importance, the population growth and distributional expansion of this squid is being increasingly studied. Nevertheless, some basic features of the biology of D. gigas are still unknown or have been poorly investigated. In this review we summarize the known information regarding the biology and ecology of this species in the southeastern Pacific Ocean; we focus on the Chilean region in order to propose hypotheses and research lines for a better understanding the life history of this organism. Available data on the size structure, reproduction and genetics of D. gigas allows us to propose hypotheses related to the squid's life history traits. Based on the current literature and publications of colleagues, we propose two hypotheses regarding the effect of spatial variation on the life history of D. gigas. Hypothesis 1: Squids mature at large sizes and spawn in oceanic waters with warm temperatures where paralarvae and juveniles develop. Immature squids migrate near shore to feed, grow and mature, and then return to the offshore sites to spawn. Hypothesis 2: Alternatively, juvenile D. gigas in the oceanic zone do not migrate to coastal waters and mature at small sizes compared to individuals living near the coast that mature at larger size and migrate to oceanic waters to spawn. We provide background information about the feeding behavior and parasitism of this species, suggesting that D. gigas is an important trophic link in the southeastern Pacific marine ecosystem. However, more studies on the feeding habits, reproduction and parasite load are needed not only to test hypotheses proposed in this study, but also to advance the overall knowledge of this species.

  1. Growth in Chilean infants with chromosome 22q11 microdeletion syndrome.

    Science.gov (United States)

    Guzman, Maria Luisa; Delgado, Iris; Lay-Son, Guillermo; Willans, Edward; Puga, Alonso; Repetto, Gabriela M

    2012-11-01

    Chromosome 22q11 microdeletion syndrome has a wide range of clinical manifestations including congenital heart malformations, palatal defects, endocrine abnormalities, immunologic deficits, learning difficulties, and an increased predisposition to psychiatric disease. Short stature and poor weight gain in infancy are common findings and are usually seen in the absence of hormone deficiencies. An increased frequency of obesity has been observed in adolescents and adults. We generated gender-specific growth curves from 0 to 24 months of age, based on 479 length and 475 weight measurements from 138 Chilean patients with 22q11 deletion. Final adult height and weight on 25 individuals were analyzed. The 10th, 50th, and 90th centile-smoothed curves for infants were built using the LMS method and compared with World Health Organization Child Growth Standards. The 50th centile for length in the deleted patients was slightly lower than the 10th centile of WHO standards in boys and girls. The same was observed for weight, although a trend toward a gradual increase near 2 years of age was observed, particularly in boys. Average adult height was 152 cm (ranging from 143 to 162 cm) in females, corresponding to the 10th centiles of WHO standards, and 166 cm for males (160-172 cm), at the 20th centile of WHO standards. A third of the adult females and none of the males had body mass index (BMI) greater than 25. The curves should be useful to monitor growth in infants with 22q11 microdeletion syndrome.

  2. You will never again be a Chilean like the others : From diaspora to diasporic practices among Chilean refugees returning from exile

    Directory of Open Access Journals (Sweden)

    Gurid Aga Askeland

    2015-03-01

    Full Text Available In this paper we focus on repatriation of refugees who came to Norway after the coup d'état in Chile in 1973. The Chilean refugees formed part of a diaspora during exile. The authors’ concern is the returnees' relationship with the diaspora upon return. The purpose of the article is to discuss whether the notion of diaspora may contribute to an understanding of the situation of the returnees. Diaspora is widely used in migration studies, although the concept is not particularly related to studies on refugees and their return. The article is based on interviews with Chilean returnees from Norwegian exile. The authors argue that their situation may be best understood as one of continued diasporic identity and diasporic consciousness.

  3. External Technical Support for School Improvement: Critical Issues from the Chilean Experience

    Science.gov (United States)

    Osses, Alejandra; Bellei, Cristián; Valenzuela, Juan Pablo

    2015-01-01

    To what extent school improvement processes can be initiated and sustained from the outside has been a relevant question for policy-makers seeking to increase quality in education. Since 2008, the Chilean Government is strongly promoting the use of external technical support (ETS) services to support school improvement processes, as part of the…

  4. Chilean Adolescents' and Parents' Views on Autonomy Development

    Science.gov (United States)

    Martínez, M. Loreto; Pérez, J. Carola; Cumsille, Patricio

    2014-01-01

    This study aims to understand Chilean parents' and adolescents' conceptions of autonomy and whether they hold different expectations for autonomous behaviors by generation and socioeconomic level. A qualitative approach to data collection was used through separate focus groups of parents and adolescents from different socioeconomic…

  5. HLA-B*5701 frequency in Chilean HIV-infected patients and in general population

    Directory of Open Access Journals (Sweden)

    Helena Poggi

    2010-10-01

    Full Text Available It has been demonstrated that HLA-B*5701 screening reduces the risk for hypersensitivity reaction to abacavir in HIV-infected patients. Since B*5701 prevalence varies among different populations, it is important to determine the carrier frequency prior to its use for the screening of HIV-infected patients.The aim of this study was to determine HLA-B*5701 carrier frequency in Chilean general population and HIV-infected patients referred for B*5701 typing. For that purpose 300 blood bank donors and 492 abacavir-naïve HIV-infected patients from Chile were screened for B*5701 by a sequence specific primer PCR.We detected 14/300 (4.7% B*57-positive individuals in the Chilean general population, 11 (3.7% were B*5701 positive, and 3 (1% had another subtype.All were heterozygous,thus a B*5701 allele frequency of 2% was determined.Eleven of 492 (2.2 % HIV-patients carried a B*5701 allele. The difference between these frequencies is probably due to slow progression of HIV infection in HLA-B*5701 carriers, thus less patients would require antiretroviral therapy and B*5701 typing. Considering the usefulness of B*5701 screening, its prevalence in the Chilean general population,and the availability of a validated method,we conclude that HLA-B*5701 typing in Chilean HIV-infected patients about to initiate abacavir treatment is strongly recommended

  6. Bruises in Chilean cattle: their characterization, occurrence and relation with pre-slaughter conditions

    NARCIS (Netherlands)

    Strappini, A.C.

    2012-01-01

    Bruises on cattle carcass affect the quality of the meat and are indicators of poor welfare conditions. According to the literature the occurrence of bruises is related to pre- slaughter conditions, however their contribution is not clear for Chilean cattle. The aim of this thesis was to provide a b

  7. The Class and Culture-Based Exclusion of the Chilean Neoliberal Educational Reform

    Science.gov (United States)

    Cavieres, Eduardo A.

    2011-01-01

    In this article I analyze the class- and cultural-based exclusion produced by the Chilean neoliberal educational reform, carried out during the period from 1990 to 2010. This educational reform follows the same neoliberal model applied to the economy of the country. Although some indicators improved in relation to coverage and public spending in…

  8. The Long Journey: Perspectives on the Coordination of Chilean Higher Education

    Science.gov (United States)

    Salazar, José M.; Leihy, Peodair S.

    2017-01-01

    It is fairly established that Chilean higher education presents a high level of Habermasian "privatism," as long labeled by José Joaquin Brunner, being among the world's most privatized systems in terms of who pays, who is held to benefit directly from its action and who controls it. Less clear, however, is the contribution of public…

  9. Level of evidence and geographic origin of articles published in Chilean dental journals.

    Directory of Open Access Journals (Sweden)

    Javier Moraga

    2014-03-01

    Full Text Available The aim of this study is to determine the geographic origin and level of evidence (LE of articles published in Chilean dental journals during 2012. The target population for the bibliometric study was articles published in exclusively-scientific Chilean dental journals. These variables were analyzed: journal, area, language, country, region, design, scenario, and LE. A total of 120 articles were published in four journals: International Journal of Odontostomatology (IJOS=59, Revista Clínica de Periodoncia, Implantología y Rehabilitación Oral (PIRO=28, Journal of Oral Research (JOR=18, and Revista Dental de Chile (RDC=15. From the total, 80.83% were published in Spanish and 70% had a Chilean affiliation. Most publications corresponded to areas of pathology (21 others (20 and prosthodontics (20. None of the articles was Level 1 Evidence, 6.49% was 2b, 14.29% was 2c, 63.64% was 4, and 15.58% was 5. Chilean dental journals mainly publish articles of domestic origin and low LE.

  10. Morphology, anatomy and histology of Doto uva Marcus, 1955 (Opisthobranchia: Nudibranchia) from the Chilean coast

    NARCIS (Netherlands)

    Fischer, M.A.; Velde, van der G.; Roubos, E.W.

    2006-01-01

    Doto uva Marcus, 1955 is a nudibranch species recorded from the Brazilian and Chilean coast. In spite of its wide distribution, D. uva has been described only superficially, mainly as to the pattern of its coloration, external morphology, radular teeth and reproductive system. Here we substantially

  11. Remaking Education from Below: The Chilean Student Movement as Public Pedagogy

    Science.gov (United States)

    Williams, Jo

    2015-01-01

    This article considers the Chilean student movement and its ten-year struggle for public education as an example of public pedagogy. Secondary and university students, along with the parents, teachers, workers and community members who have supported them, have engaged in the most sustained political activism seen in Chile since the democratic…

  12. The Impact of Powerful Oral Language Lab on Chilean EFL Preservice Teachers

    Science.gov (United States)

    Ward, Hsuying Chiou; Andruske, Cynthia Lee

    2013-01-01

    This exploratory qualitative case study reports the impact of using a public-speaking structure (Powerful Oral Language Lab [POLL]) in teaching preservice Chilean English pedagogy students. It describes how this task-based method of English as a Foreign Language (EFL) teacher training is related to language strategic competence. Twenty students…

  13. Educational Effectiveness in Chilean Secondary Education: Comparing Different "Value Added" Approaches to Evaluate Schools

    Science.gov (United States)

    Muñoz-Chereau, B.; Thomas, S. M.

    2016-01-01

    This article reports an original investigation into school performance measures and the multilevel nature of pupil achievement data in the Chilean school system using a sample of 177,461 students, nested within 7146 classrooms, 2283 secondary schools and 313 municipalities. The data-set comprised Year 10 students' 2006 SIMCE test's results in two…

  14. Eating Disorders among a Community-Based Sample of Chilean Female Adolescents

    Science.gov (United States)

    Granillo, M. Teresa; Grogan-Kaylor, Andrew; Delva, Jorge; Castillo, Marcela

    2011-01-01

    The purpose of this study was to explore the prevalence and correlates of eating disorders among a community-based sample of female Chilean adolescents. Data were collected through structured interviews with 420 female adolescents residing in Santiago, Chile. Approximately 4% of the sample reported ever being diagnosed with an eating disorder.…

  15. [Recommendations for Chilean travelers to the FIFA World Cup 2014 in Brazil].

    Science.gov (United States)

    Perret, Cecilia; Weitzel, Thomas

    2014-04-01

    This article provides a checklist of precautions and vaccines for Chilean travelers attending the FIFA World Cup 2014 in Brazil. It aims to help physicians to prepare visitors of this mass gathering and summarizes useful hints to avoid infectious diseases considering the circumstances and availabilities in Chile.

  16. The Chilean miracle : patrimonialism in a modern free-market democracy

    NARCIS (Netherlands)

    Peppelenbos, L.P.C.

    2005-01-01

    International policy institutions claim that Chile's remarkable economic performance testifies to the merits of a neo-liberal development model. This book argues, however, that 'the Chilean miracle' did not result from the adoption ofneoliberalismitself, but from the persis

  17. The Dad in the Che Guevara T-Shirt: Narratives of Chilean English Teachers

    Science.gov (United States)

    Menard-Warwick, Julia

    2008-01-01

    Building on previous critical research regarding student resistance to English Language Teaching (ELT), this paper illustrates Chilean high-school English teachers' use of narrative to make sense of ideological challenges from students. While the government of Chile is promoting English in connection with the nation's export-oriented economic…

  18. Bringing the Schools Back in: The Stratification of Educational Achievement in the Chilean Voucher System

    Science.gov (United States)

    Mizala, Alejandra; Torche, Florencia

    2012-01-01

    This paper analyzes the socioeconomic stratification of achievement in the Chilean voucher system using a census of 4th and 8th graders, a multilevel methodology, and accounting for unobserved selectivity into school sector. Findings indicate that the association between the school's aggregate family socioeconomic status (SES) and test scores is…

  19. Draft Genome of Chilean Honeybee (Apis mellifera) Gut Strain Lactobacillus kunkeei MP2

    Science.gov (United States)

    Olmos, Alejandro; Henríquez-Piskulich, Patricia; Sanchez, Carolina; Rojas-Herrera, Marcelo; Moreno-Pino, Mario; Gómez, Marcela; Rodríguez Da Silva, Rafael; Maracaja-Coutinho, Vinicius; Aldea, Patricia

    2014-01-01

    Here, we report the first draft genome sequence of Lactobacillus kunkeei strain MP2, isolated from a Chilean honeybee gut. The sequenced genome has a total size of 1.58 Mb distributed into 44 contigs and 1,356 protein-coding sequences. PMID:25301653

  20. Population genetics of the Chilean frog Batrachyla Leptopus (Leptodactylidae

    Directory of Open Access Journals (Sweden)

    J.R. Formas

    2000-03-01

    Full Text Available Electrophoretic variation of proteins encoded by 14 loci was analyzed in eight (five continental and three insular populations of the Chilean leptodactylid frog Batrachyla leptopus. The overall proportion of polymorphic loci was estimated to be 18.7% and the average number of alleles per locus, 1.2, while observed and expected heterozygosities were 1.7 and 5.1%, respectively. The estimated coefficient of genetic identity was 0.940; the corresponding figure for genetic distance was 0.063. F-statistics analysis showed a total inbreeding coefficient (Fit of 0.855 and high levels of genetic subdivision (Fst = 0.596 as well as of inbreeding within populations (Fis = 0.640. However, there was only a moderate level of genetic differentiation (Fst = 0.181 between the insular group of populations and the continental group.A variação eletroforética de proteínas codificadas por 14 loci foi analisada em oito populações (5 continentais e 3 insulares da rã leptodactilídea chilena Batrachyla leptopus. A proporção geral de loci polimórficos foi estimada como sendo de 18,7% e o número médio de alelos por loco, 1,2, enquanto que as heterozigosidades observada e esperada foram 1,7 e 5,1%, respectivamente. O coeficiente esperado de identidade genética foi 0,940; o número correspondente para a distância genética foi 0,063. A análise estatística F mostrou um coeficiente de endogamia total (Fit de 0,855 e altos níveis de subdivisão genética (Fst = 0,596, assim como de endogamia dentro das populações (Fis = 0,640. Contudo, houve apenas um nível moderado de diferenciação genética (Fst = 0,181 entre o grupo insular de populações e o grupo continental.

  1. Prevalence rates of mental disorders in Chilean prisons.

    Directory of Open Access Journals (Sweden)

    Adrian P Mundt

    Full Text Available OBJECTIVE: High rates of mental disorders have been reported for prison populations worldwide, particularly in low- and middle-income countries (LMICs. The present study aimed to establish prevalence rates of mental disorders in Chilean prisoners. METHOD: A nationwide random sample of 1008 prisoners was assessed in 7 penal institutions throughout Chile. Twelve-month prevalence rates were established using the Composite International Diagnostic Interview (CIDI and compared to the prevalence rates previously published for the general population. RESULTS: Prevalence rates were 12.2% (95% CI, 10.2-14.1 for any substance use disorder, 8.3% (6.6-10.0 for anxiety disorders, 8.1% (6.5-9.8 for affective disorders, 5.7% (4.4-7.1 for intermittent explosive disorders, 2.2% (1.4-3.2 for ADHD of the adult, and 0.8% (0.3-1.3 for non-affective psychoses. Significantly higher prevalence rates among prisoners as compared to the general population in Chile were seen for major depression (6.1% vs. 3.7% males, Z=2.58, p<0.05 and illicit drug use (3.3% vs. 0.6% males with drug abuse, Z=2.04, p<0.05; 2.6% vs. 0.1% females with drug abuse, Z=5.36, p<0.001; 3.4% vs. 1.1% males with drug dependence, Z=3.70; p<0.001. Dysthymia (6.5% vs. 15.6%, Z=-2.39, p<0.05, simple (3.3% vs. 11.5%, Z=-3.13, p<0.001 and social phobias (3.9% vs. 9.7%, Z=2.38, p<0.05 were significantly less frequent in the female prison population than in the general population. One-year prevalence rates of alcohol abuse (2.3% vs. 3.9%; Z=-2.04; p<0.05 and dependence (2.7% vs. 8.2%; Z=-5.24; p<0.001 were less prevalent in the male prison population than in the general population. CONCLUSIONS: Service provision for prison populations in Chile should acknowledge high rates of depression and illicit drug use. Overall prevalence rates are lower than reported in other LMICs. Previous research in prison populations in LMICs might have overestimated prevalence rates of mental disorders.

  2. Organizations

    DEFF Research Database (Denmark)

    Hatch, Mary Jo

    Most of us recognize that organizations are everywhere. You meet them on every street corner in the form of families and shops, study in them, work for them, buy from them, pay taxes to them. But have you given much thought to where they came from, what they are today, and what they might become...... and considers many more. Mary Jo Hatch introduces the concept of organizations by presenting definitions and ideas drawn from the a variety of subject areas including the physical sciences, economics, sociology, psychology, anthropology, literature, and the visual and performing arts. Drawing on examples from...... prehistory and everyday life, from the animal kingdom as well as from business, government, and other formal organizations, Hatch provides a lively and thought provoking introduction to the process of organization....

  3. "One of the Most Uniform Races of the Entire World": Creole Eugenics and the Myth of Chilean Racial Homogeneity.

    Science.gov (United States)

    Walsh, Sarah

    2015-11-01

    This article illuminates why Nicolás Palacios's 1904 monograph, Raza chilena: Libro escrito por un Chileno i para los Chilenos [Chilean Race: A Book Written by a Chilean for Chileans], is central to the creation of a myth of Chilean racial homogeneity at the turn of the twentieth century. Placing Palacios in the context of Latin American eugenic discourse, it demonstrates how he selected a specific racial origin story in order to accommodate his belief in racial hierarchy while also depicting race mixing in a positive light. Specifically, the article highlights how the myth of Chilean racial homogeneity elided the difference between the term "mestizo," which was applied to people of mixed racial heritage, and "white." I contend that Palacios sought to differentiate Chileans from other Latin Americans by emphasizing their racial distinctiveness. The article therefore highlights that Latin American eugenics was concerned with the creation of national narratives that historicized particular racial mixtures in order to reify and affirm national differences. As such, it connects to literature regarding the history of eugenics, race, nation, and the creation of whiteness.

  4. Psychometric properties of the "Spanish Burnout Inventory" in Chilean professionals working to physical disabled people.

    Science.gov (United States)

    Gil-Monte, Pedro R; Olivares Faúndez, Víctor E

    2011-05-01

    While the most commonly employed burnout measure has been the Maslach Burnout Inventory (MBI), researchers have been troubled by some of the psychometric limitations of this instrument. The aim of this study was to analyze the psychometric properties of the "Spanish Burnout Inventory" (SBI). The psychometric properties were analysed with data from a sample of 277 Chilean professionals working to physical disabled people. The psychometric properties of the SBI were examined through the following analyses: confirmatory factor analysis, reliability Cronbach's alpha, and concurrent validity with the MBI. The hypothesized four factor model obtained an adequate data fit for the sample (chi2(164) = 285.32, p burnout in the Chilean cultural context.

  5. Socioeconomic Status and Internalizing Symptoms in Chilean Children: Does Reserve Capacity Matter?

    Science.gov (United States)

    Martinez, Suzanna M; Castillo, Marcela; Lozoff, Betsy; Gahagan, Sheila

    2016-01-01

    Informed by the reserve capacity model, we examined pathways between socioeconomic status (SES) and internalizing symptoms (IS) in 1119 Chilean 10-year-olds. Mediators included parental disciplinary style and reserve capacity resources (RCR), namely home environment, parent-child engagement, and self-esteem, and conduct problems. Using structural equation modeling, the model was stratified by gender. For boys, the SES-IS relationship was mediated by the home environment and parental disciplinary style. For girls, the SES-IS relationship was mediated by the home environment, parent-child engagement, self-esteem, and conduct problems. Findings suggest different RCR may protect against IS in a sample of Chilean children. PMID:27123471

  6. Responses to electricity liberalization: the regional strategy of a Chilean generator

    Energy Technology Data Exchange (ETDEWEB)

    Sol, P. del [Universidad Catolica de Chile, Santiago (Chile). Dpto. Ingenieria Industrial y de Sistemas

    2002-04-01

    Chilean reformers joined the new trend toward liberalization of the electricity markets around 1980, 12 years before any other Latin American country. This paper summarizes the main characteristics of the electricity reforms in Chile and other Latin American countries. It then analyzes the strategic response by the electricity generating company Endesa de Chile to these reforms. Endesa completely reformulated its competitive strategy. Its most significant commitments were its investments across Latin America in privatized power plants in Argentina, Peru, Colombia and Brazil. Endesa based its internationalization on its Chilean experience in transferring an inefficient state-owned firm and operating it in the new electrical regulatory framework favorable to market competition. The company's competitive advantage originated to a great extent in that Chile was the first country in Latin America to reform its electrical sector. (author)

  7. Beliefs about children's adjustment in same-sex families: Spanish and Chilean university students.

    Science.gov (United States)

    Frias-Navarro, Dolores; Monterde-i-Bort, Hector; Barrientos-Delgado, Jaime; Badenes-Ribera, Laura; Cardenas-Castro, Manuel

    2014-01-01

    The main purpose of our study is to compare the beliefs of Spanish and Chilean university students about the effects that same-sex parents might have on their children. A total of 491 participants completed the study (208 Spaniards and 283 Chileans). The results indicate a kind of modern and subtle rejection based on hetero-normativity. Furthermore, the results indicated the effects of sex (men have a greater degree of rejection), traditional and sexist opinions linked to a greater rejection of same-sex parents, and the contact variable which inversely correlates with this rejection. The results show that the etiology of homosexual orientation also correlates with rejection of same-sex parents when it is believed that homosexuality is learned or can be changed.

  8. Spanish and Chilean Standardizations of the Personality Assessment Inventory: the Influence of Sex.

    Science.gov (United States)

    Ortiz-Tallo, Margarita; Cardenal, Violeta; Ferragut, Marta; Santamaría, Pablo

    2015-01-01

    There is growing interest in the adaptation of psychological questionnaires in different countries, due to the need for cross-cultural research using the same tests adapted to diverse populations. This paper presents the standardization of the Personality Assessment Inventory (PAI; Morey, 1991, 2007) in Spain and Chile (both Spanish-speaking countries). The Spanish sample was made up of 940 people (461 men and 479 women), and the Chilean sample of 569 people (231 men and 338 women). Results revealed that the Chilean means were higher than those of the Spanish sample at confidence level 99.9%, although the associated effect sizes were generally small to moderate (partial eta-square between 0.008 and 0.187). Sex differences in the variables evaluated were commented on, and the importance of cross-cultural research and the influence of sex on personality and psychopathology variables were discussed.

  9. Intercultural journalism: Peruvian and Bolivian representation in the Chilean daily press news

    OpenAIRE

    Browne-Sartori, Rodrigo-Francisco; Baessolo-Stiven, Ricardo-Alberto; Silva-Echeto, Víctor-Manuel

    2010-01-01

    This article examines the processes through which the massive press generates and represents the cultural discourses of two of the most polemic migrant groups coexisting nowadays in Chile: Peruvians and Bolivians. The representation that the communication media carries out regarding the studied cultures strongly influences the imaginaries of the Chilean audiences. That calls for special concern so as to propose the necessary spaces for intercultural exchange as much in the media as in the soc...

  10. U.S. and Chilean College Students' Reading Practices: A Cross-Cultural Perspective

    Science.gov (United States)

    Huang, Suhua; Orellana, Pelusa; Capps, Matthew

    2016-01-01

    The purpose of this study was to investigate the differences between the amounts of time that U.S. and Chilean students spend on conventional academic reading, extracurricular reading, and Facebook and also to report the types of materials they prefer to read. The study surveyed students in the United States (n = 1,265) and Chile (n = 2,076)…

  11. Democracy and Student Discontent: Chilean Student Protest in the Post-Pinochet Era

    OpenAIRE

    Peter M. M. Cummings

    2015-01-01

    "Objective indicators suggest that economic and political conditions improved in Chile between the country's democratization in 1990 and 2011. Average incomes increased, poverty rates decreased, and the number of positive reviews of Chilean democratic institutions rose. Despite this progress, massive student-led protest waves in 2006 and 2011 demonstrated high levels of subjective discontent in Chile. This paper proposes a three-part explanation for the paradoxical emergence and escalation of...

  12. Democracy and Student Discontent: Chilean Student Protest in the Post-Pinochet Era

    OpenAIRE

    Peter M. M. Cummings; University of Notre Dame, Indiana

    2015-01-01

    Objective indicators suggest that economic and political conditions improved in Chile between the country’s democratization in 1990 and 2011. Average incomes increased, poverty rates decreased, and the number of positive reviews of Chilean democratic institutions rose. Despite this progress, massive student-led protest waves in 2006 and 2011 demonstrated high levels of subjective discontent in Chile. This paper proposes a three-part explanation for the paradoxical emergence and escalation of ...

  13. Poetic of memory at Chilean theather: Scenic practice from 1973 to 1990

    OpenAIRE

    Núñez Álvarez, Javiera

    2013-01-01

    The present article tries to point out the search and creation of Memory Theater in Chile through a scenic journey between 1973 and 1990. The reading of such a process is assumed in the light of theatrical discourse of resistance, the political and poetic conception of memory as praxis historicity of the present. key to puttings in scene the construction of contemporary Chilean theater in the context of the Pinochet regime.

  14. Original footage of the Chilean miners with manganism published in Neurology in 1967.

    Science.gov (United States)

    Miranda, Marcelo; Bustamante, M Leonor; Mena, Francisco; Lees, Andrew

    2015-12-15

    Manganism has captured the imagination of neurologists for more than a century because of its similarities to Parkinson disease and its indirect but seminal role in the "l-dopa miracle." We present unpublished footage of the original case series reported in Neurology® in 1967 by Mena and Cotzias depicting the typical neurologic signs of manganism in 4 Chilean miners and their response to high doses of l-dopa.

  15. Michelle Bachelet’s Government: The Paradoxes of a Chilean President

    OpenAIRE

    2012-01-01

    The purpose of this article is to explain the contradictions in Michelle Bachelet’s presidency by focusing on the paradoxical nature of presidential power, the limits on the executive in the Chilean constitution, and how those limits affected President Bachelet’s government. At the outset of her presidency, she faced the problem of wanting to promote inclusive policies while simultaneously experiencing political pressure to maintain elite consensus...

  16. Uncommon social trajectories: Chilean low-income adolescents with reading skills

    Directory of Open Access Journals (Sweden)

    Iván Ortiz

    2013-07-01

    Full Text Available It is generally believed that students from low-income families are less successful at school, as indicated by theories of social reproduction. This article focuses on Chilean students that, in spite of their social background, have performed well in the Programme for International Student Assessment (PISA 2009. Using logistic regression analysis we identify factors associated with academic achievement in reading. Results show that student variables have a greater explanatory value than family and school variables.

  17. The dance of those left behind. Chilean high school students and the possibility of disagreement

    Directory of Open Access Journals (Sweden)

    Irene Depetris Chauvin

    2014-06-01

    Full Text Available The article examines the high school students’ protest against the neoliberal conception of education during the first period of President Michelle Bachelet government. Specifically, I analyze how the new generation of young Chileans critically uses and produces pop culture — photoblogs, posters, and stencils — in order to express disagreement with the mercantilist approach to education and the very concept of neoliberal freedom and equality.

  18. Chilean model for long-term follow-up of phenylketonuria (PKU

    Directory of Open Access Journals (Sweden)

    Verónica Cornejo

    2014-07-01

    Full Text Available Chilean newborn screening program began in 1984 through of a covenant between the National Ministry of Health and the Chilean University through its Institute of Nutrition and Food Technology (INTA with the aim of implementing a pilot study for neonatal detection of phenylketonuria (PKU in Santiago’s central area. In 1989 a program for neonatal diagnosis of PKU and congenital hypothyroidism (HC was initiated by INTA along with Santiago´s occidental health ministry rural area, which covered 20% of newborn population. PKU and HC had an incidence of 1:14,640 and 1:2000 living newborns respectively. These findings allowed the establishment of a favorable cost/benefit ratio which validated the implementation of a program with National character. In 1992 the Chilean Ministry of Health ruled the initiation of PKU and HC newborn screening program and by 1998 the coverage across the country was achieved. INTA is the National Reference Center for confirmation and long term treatment for PKU and HC patients. A follow-up program consists of medical, nutritional, neurological and psychological outcome evaluations as well as periodic biochemical testing in order to guarantee normal patient growth and development. To date 184 children have been diagnosed with classic or moderate PKU, all of them follow a strict monitoring program.

  19. Polyunsaturated Fatty Acid Composition of Maternal Diet and Erythrocyte Phospholipid Status in Chilean Pregnant Women

    Directory of Open Access Journals (Sweden)

    Karla A. Bascuñán

    2014-11-01

    Full Text Available Chilean diets are characterized by a low supply of n-3 polyunsaturated fatty acids (n-3 PUFA, which are critical nutrients during pregnancy and lactation, because of their role in brain and visual development. DHA is the most relevant n-3 PUFA in this period. We evaluated the dietary n-3 PUFA intake and erythrocyte phospholipids n-3 PUFA in Chilean pregnant women. Eighty healthy pregnant women (20–36 years old in the 3rd–6th month of pregnancy were included in the study. Dietary assessment was done applying a food frequency questionnaire, and data were analyzed through the Food Processor SQL® software. Fatty acids of erythrocyte phospholipids were assessed by gas-liquid chromatography. Diet composition was high in saturated fat, low in mono- and PUFA, high in n-6 PUFA (linoleic acid and low in n-3 PUFA (alpha-linolenic acid and DHA, with imbalance in the n-6/n-3 PUFA ratio. Similar results were observed for fatty acids from erythrocyte phospholipids. The sample of Chilean pregnant women showed high consumption of saturated fat and low consumption of n-3 PUFA, which is reflected in the low DHA content of erythrocyte phospholipids. Imbalance between n-6/n-3 PUFA could negatively affect fetal development. New strategies are necessary to improve n-3 PUFA intake throughout pregnancy and breast feeding periods. Furthermore, it is necessary to develop dietary interventions to improve the quality of consumed foods with particular emphasis on n-3 PUFA.

  20. Democracy and Student Discontent: Chilean Student Protest in the Post-Pinochet Era

    Directory of Open Access Journals (Sweden)

    Peter M. M. Cummings

    2015-01-01

    Full Text Available Objective indicators suggest that economic and political conditions improved in Chile between the country’s democratization in 1990 and 2011. Average incomes increased, poverty rates decreased, and the number of positive reviews of Chilean democratic institutions rose. Despite this progress, massive student-led protest waves in 2006 and 2011 demonstrated high levels of subjective discontent in Chile. This paper proposes a three-part explanation for the paradoxical emergence and escalation of the post-Pinochet-era Chilean student protests, and, in so doing, contributes to the broader understanding of social movements and political action. The first two parts of the argument relate to generational change. Firstly, a gap between expectations and capabilities provoked discontent amongst a new generation of Chilean students. Secondly, the new generation’s collective identity as “la generación sin miedo” (the fearless generation motivated the students to turn discontent into political action. Thirdly, government and student actor agency influenced the variance in protest strength between 2005 and 2011.

  1. Rhizobacterial Community Structures Associated with Native Plants Grown in Chilean Extreme Environments.

    Science.gov (United States)

    Jorquera, Milko A; Maruyama, Fumito; Ogram, Andrew V; Navarrete, Oscar U; Lagos, Lorena M; Inostroza, Nitza G; Acuña, Jacquelinne J; Rilling, Joaquín I; de La Luz Mora, María

    2016-10-01

    Chile is topographically and climatically diverse, with a wide array of diverse undisturbed ecosystems that include native plants that are highly adapted to local conditions. However, our understanding of the diversity, activity, and role of rhizobacteria associated with natural vegetation in undisturbed Chilean extreme ecosystems is very poor. In the present study, the combination of denaturing gradient gel electrophoresis and 454-pyrosequencing approaches was used to describe the rhizobacterial community structures of native plants grown in three representative Chilean extreme environments: Atacama Desert (ATA), Andes Mountains (AND), and Antarctic (ANT). Both molecular approaches revealed the presence of Proteobacteria, Bacteroidetes, and Actinobacteria as the dominant phyla in the rhizospheres of native plants. Lower numbers of operational taxonomic units (OTUs) were observed in rhizosphere soils from ATA compared with AND and ANT. Both approaches also showed differences in rhizobacterial community structures between extreme environments and between plant species. The differences among plant species grown in the same environment were attributed to the higher relative abundance of classes Gammaproteobacteria and Alphaproteobacteria. However, further studies are needed to determine which environmental factors regulate the structures of rhizobacterial communities, and how (or if) specific bacterial groups may contribute to the growth and survival of native plants in each Chilean extreme environments.

  2. Use of Electronic Versus Print Textbooks by Chilean Dental Students: A National Survey.

    Science.gov (United States)

    Aravena, Pedro Christian; Schulz, Karen; Parra, Annemarie; Perez-Rojas, Francisco; Rosas, Cristian; Cartes-Velásquez, Ricardo

    2017-03-01

    Electronic textbooks have become available in recent decades as replacements or alternatives for print versions. The aim of this descriptive cross-sectional study was to evaluate the use of electronic versus print textbooks by Chilean dental students. The target population was students from 14 Chilean dental schools. The questionnaire was adapted and translated to Spanish from a previous survey used in a similar study. It consisted of the following variables: preferred type, type used, frequency of use, source, electronic devices used to read, and disposal after use. The use of textbooks was analyzed and compared by gender and course (p≤0.05). The final sample consisted of 3,256 students (21.38±2.5 years of age, 50.8% women). Most of the participants reported using both types of texts, with most (63.9%) preferring print over electronic texts, including significantly more women (pelectronic books on a daily basis (47.3%) or at least twice a week (30.7%). The main source of electronic textbooks was the Internet (43.8%). A personal computer was the most widely used device for reading electronic texts (95.0%), followed by a cell phone (46.4%) and a tablet (24.5%). Overall, these Chilean dental students preferred print over electronic textbooks, despite having available electronic devices.

  3. Content validity and reliability of test of gross motor development in Chilean children

    Directory of Open Access Journals (Sweden)

    Marcelo Cano-Cappellacci

    2015-01-01

    Full Text Available ABSTRACT OBJECTIVE To validate a Spanish version of the Test of Gross Motor Development (TGMD-2 for the Chilean population. METHODS Descriptive, transversal, non-experimental validity and reliability study. Four translators, three experts and 92 Chilean children, from five to 10 years, students from a primary school in Santiago, Chile, have participated. The Committee of Experts has carried out translation, back-translation and revision processes to determine the translinguistic equivalence and content validity of the test, using the content validity index in 2013. In addition, a pilot implementation was achieved to determine test reliability in Spanish, by using the intraclass correlation coefficient and Bland-Altman method. We evaluated whether the results presented significant differences by replacing the bat with a racket, using T-test. RESULTS We obtained a content validity index higher than 0.80 for language clarity and relevance of the TGMD-2 for children. There were significant differences in the object control subtest when comparing the results with bat and racket. The intraclass correlation coefficient for reliability inter-rater, intra-rater and test-retest reliability was greater than 0.80 in all cases. CONCLUSIONS The TGMD-2 has appropriate content validity to be applied in the Chilean population. The reliability of this test is within the appropriate parameters and its use could be recommended in this population after the establishment of normative data, setting a further precedent for the validation in other Latin American countries.

  4. ICT in Chilean Schools: Students' and Teachers' Access and Use of ICT

    Directory of Open Access Journals (Sweden)

    J. Enrique Hinostroza

    2005-01-01

    Full Text Available This paper presents the results of the analysis of the data from a national survey of the Chilean educational ICT infrastructure and its use in schools implemented by the Centre for Technology and Education of the Chilean Ministry of Education in 2004. Results show that the context of ICT use in Chilean schools can be characterized as relatively good, insofar as there are no first-order barriers for implementing ICT pedagogy. In this context, students’ ICT use can be categorized based on four factors: communication, productivity, recreation, and communication with teachers. On the other hand, teachers’ ICT use can be categorized using three factors: communication, teaching, and technical. Based on these factors and considering the availability and use of ICT in schools, the question remains how to make this time most effective for improving students’ learning. Additionally, results show that students, on their own, spend a considerable amount of time developing activities described as communication. The question that arises from this finding is how to take advantage of these activities in order to meet teaching and learning aims. Regarding teachers, results open possibilities for redesigning professional development courses by taking advantage of what they already do with ICT.

  5. The management of care: a social and legal function of chilean nursing

    Directory of Open Access Journals (Sweden)

    Paula Ceballos-Vásquez

    2015-07-01

    Full Text Available Introduction: The objective of this article is to reflect on the implication of the concept of management of nursing, making Latin-American countries that have incorporated the management of care aware of its norms and the chilean experience and the legal aspects that regulate the management of care are specifically presented.Development: To achieve this objective, a bibliographic revision of diverse mainstream magazines, texts and laws related to administration and Management of Care was carried out.Initially, the concept of management is analyzed with the purpose of comprehending why the nursing integrate it in its field of performance. To visualize later how some of the countries of Latin-America have incorporated it in their legal frameworks of management of Care care of nursing, and subsequently the experience of the Chilean chilean nursing with regard to the Management management of Care care is analyzed extensively.Conclusions: As final considerations it is indicated that the Management management of Care care is part of the social function of the nurses, for the daily work they are to perform incorporating the management, it would provide managing competencies and would permit the autonomous caretaking to these professionals. 

  6. [Position paper from the Department of Ethics of the Chilean College of Physicians about conscientious objection].

    Science.gov (United States)

    Salas, Sofía P; Besio, Mauricio; Bórquez Estefó, Gladys; Salinas, Rodrigo A; Valenzuela, Carlos Y; Micolich, Constanza; Novoa Sotta, Fernando; Bernier Villarroel, Lioniel; Montt M, Julio; Misseroni Raddatz, Adelio

    2016-03-01

    The Chilean bill that regulates abortion for three cases (Bulletin Nº 9895-11) includes the possibility that health professionals may manifest their conscientious objection (CO) to perform this procedure. Due to the broad impact that the issue of C O had, the Ethics Department of the Chilean College of Physicians considered important to review this concept and its ethical and legal basis, especially in the field of sexual and reproductive health. In the present document, we define the practical limit s of CO, both for the proper fulfillment of the medical profession obligations, and for the due respect and non-discrimination that the professional objector deserves. We analyze the denial of some health institutions to perform abortions if it is legalize d, and we end with recommendations adjusted to the Chilean reality. Specifically, we recognize the right to conscientious objection that all physicians who directly participate in a professional act have. But we a lso recognize that physicians have ineludib le obligations towards their patients, including the obligation to inform about the existence of this service, how to access to it and -as set out in our code of ethics- to ensure that another colleague will continue attending the patient.

  7. The Image of E-Learning: Perceptions about a Chilean University and the E-Learning System in the Context of Chile

    Science.gov (United States)

    Farcas, Daniel

    2010-01-01

    The purpose of this research is to determine the image of a Chilean university, as perceived by those inside and outside of the institution, in contrast with the general image of the e-learning system in Chile. The internal perceptions are those of current students and graduates of this Chilean university, while the external perceptions are those…

  8. Organic pollutant burden of the giant mussels Choromytilus chorus from the south-central Chilean coast.

    Science.gov (United States)

    Toro, Beatriz; Palma-Fleming, Hernán; Navarro, Jorge M

    2004-04-01

    A comparative quantitative analysis was made on the contents of organochlorines (OCh) and polycyclic aromatic hydrocarbons (PAH) in tissues of the giant mussel Choromytilus chorus from three bays in south-central Chile exposed to various degrees of pollutant input. Mussels from the three bays contained levels of OCh near the detection limits of method, with a tendency to be slightly higher in the polluted bay (San Vicente) than in the other bays (Corral and Yaldad). PAH levels and types in Corral and Yaldad were well below of carcinogenicity permitted in mussels for human consumption.

  9. The Chilean Army, Its History, Organization, Regional Environment and Challenges Over the Next 25 Years

    Science.gov (United States)

    2002-04-09

    Training System (Sistema de Entrenamiento Thctico Computacional -SETAC) 52 employed at the War College is set, designed by military polytechnic engineers...www.army.mil/usawc/Parameters/01 spring/addicott.htm Tactical Computer Training System web page (Sistema de Entrenamiento Thctico Computacional -SETAC) http

  10. Family Pilargidae (Polychaeta: new distributional ranges and a new record for the Chilean coast La familia Pilargidae (Polychaeta: nuevos rangos de distribución y un nuevo registro para la costa de Chile

    Directory of Open Access Journals (Sweden)

    NICOLAS ROZBACZYLO

    2000-12-01

    Full Text Available Species of the family Pilargidae are revised based on bibliographic information and on specimens collected in soft bottoms, from 16 to 68 m depth, in three localities of the northern Chilean coast. Five genera and six especies, including a new record for the Chilean fauna, Parandalia fauveli, are recognized. Synonyms, diagnostic features, geographic distribution data and illustrations are provided for each species. Abundance data and biomass, as well as granulometry and organic matter of the sediments where the specimens were collected, are also reported. Presence of Pilargis berkeleyae and Sigambra bassi in the collected material allows extension of their distributional ranges from approximately 35-36ºS to 18º30'S. A taxonomic key to the six species of Pilargidae from the Chilean coast is providedSe revisan las especies de Pilargidae de la costa de Chile a partir de especímenes recolectados en fondos blandos sublitorales, entre 16 y 68 m de profundidad, en tres localidades del extremo norte del país, y se complementa con información bibliográfica. Se reconocen 5 géneros y seis especies incluyendo un nuevo registro para la fauna de Chile, Parandalia fauveli. Se incluye sinonimia, caracteres diagnósticos, distribución geográfica e ilustraciones para cada especie. De las especies recolectadas se entregan, además, valores de abundancia y biomasa así como también valores de granulometría y contenido de materia orgánica de los sedimentos que habitan. La presencia de Pilargis berkeleyae y Sigambra bassi, en el material recolectado, permite extender sus rangos de distribución hacia el norte de Chile desde aproximadamente 35-36ºS hasta 18º30'S. Se incluye una clave taxonómica para las seis especies de pilárgidos de la costa de Chile

  11. SPOC Experiment: First Results From Seismological Studies Along the Central Chilean Margin

    Science.gov (United States)

    Thierer, P. O.; Tilmann, F.; Flueh, E. R.; Kopp, H.; Gossler, J.

    2002-12-01

    The investigations of the RV SONNE cruise SO161 during the SPOC experiment (Subduction Processes Off Chile) concentrated on the area of the central Chilean margin west off Valparaiso. The main goal of this experiment is to investigate the effects of subducting oceanic seafloor relief on the seismicity of this domain. A marine array of 23 ocean bottom hydrophones and seismometers (OBH/S) was deployed for a period of ten weeks to monitor local earthquakes from this part of the Chilean margin where volcanic structures like the aseismic Juan Fernandez Ridge enter the trench. A strong decrease in dip angle of the subducting plate (flat slab) is observed here, resulting in a segmentation of the margin. The flat slab segment correlates with the absence of Quaternary volcanism and a central valley on the South American plate. It is assumed that a connection between the buoyancy of thickened oceanic crust and the occurrence of shallow subduction earthquakes exists. We present preliminary results of hypocenter determinations, founded on about 300 localisable events based on the OBH/S recordings. The distribution of hypocenters shows a considerable seismic activity within the 15 km - 50 km depth range. The special focus on the transitional domain of the slope allowed us to map in detail the seaward termination of the seismogenic zone. In addition, we used seismological land data, recorded from the Central Chilean Network (CCN) and a number of temporary landstations to supplement the marine data set. Comparative and joint hypocenter analysis from both marine and land data, increases the precision of locations and allows an assessment of systematic errors. We can show the need of both, on- and offshore data sets, to determine offshore earthquake locations with high precision. The seismological investigations are in close collaboration with the active seismic studies carried out during the scope of the SPOC experiment.

  12. Insulin resistance in Chileans of European and indigenous descent: evidence for an ethnicity x environment interaction.

    Directory of Open Access Journals (Sweden)

    Carlos A Celis-Morales

    Full Text Available BACKGROUND: Effects of urbanisation on diabetes risk appear to be greater in indigenous populations worldwide than in populations of European origin, but the reasons are unclear. This cross-sectional study aimed to determine whether the effects of environment (Rural vs. Urban, adiposity, fitness and lifestyle variables on insulin resistance differed between individuals of indigenous Mapuche origin compared to those of European origin in Chile. METHODOLOGY/PRINCIPAL FINDINGS: 123 Rural Mapuche, 124 Urban Mapuche, 91 Rural European and 134 Urban European Chilean adults had blood taken for determination of HOMA-estimated insulin resistance (HOMA(IR and underwent assessment of physical activity/sedentary behaviour (using accelerometry, cardiorespiratory fitness, dietary intake and body composition. General linear models were used to determine interactions with ethnicity for key variables. There was a significant "ethnicity x environment" interaction for HOMA(IR (Mean±SD; Rural Mapuche: 1.65±2.03, Urban Mapuche: 4.90±3.05, Rural European: 0.82±0.61, Urban European: 1.55±1.34, p((interaction = 0.0003, such that the effect of urbanisation on HOMA(IR was greater in Mapuches than Europeans. In addition, there were significant interactions (all p<0.004 with ethnicity for effects of adiposity, sedentary time and physical activity on HOMA(IR, with greater effects seen in Mapuches compared to Europeans, an observation that persisted after adjustment for potential confounders. CONCLUSIONS/SIGNIFICANCE: Urbanisation, adiposity, physical activity and sedentary behaviour influence insulin resistance to a greater extent in Chilean Mapuches than Chileans of European descent. These findings have implications for the design and implementation of lifestyle strategies to reduce metabolic risk in different ethnic groups, and for understanding of the mechanisms underpinning human insulin resistance.

  13. Breaking patient confidentiality: comparing Chilean and French viewpoints regarding the conditions of its acceptability

    Directory of Open Access Journals (Sweden)

    Cecilia Olivari

    2011-01-01

    Full Text Available The study examined the conditions under which lay people and health professionals living in Chile find it acceptable for a physician to break confidentiality to protect the wife of a patient with a sexually transmitted disease (STD. One hundred sixty-nine lay persons, 10 physicians, 17 psychologists, and 11 paramedical professionals indicated the acceptability of breaking confidentiality in 48 scenarios. The scenarios were all possible combinations of five factors: disease severity (severe, lethal; time taken to discuss this with the patient (little time, much time; patient’s intent to inform his spouse about the disease (none, one of these days, immediately; patient’s intent to adopt protective behaviors (no intent, intent; and physician’s decision to consult an STD expert (yes, no, 2 x 2 x 3 x 2 x 2. The study also compared Chilean and French views, using data gathered previously in France. A cluster analysis conducted on the overall set of raw data revealed groups of participants that found breaking confidentiality “always acceptable” (9%, requiring “consultation with an expert” (5%, “depending on the many circumstances” (70%, and “never acceptable” (11%”. Despite clear differences in legislation and official codes of ethics between their two countries, Chilean and French lay people did not differ much in their personal convictions regarding the circumstances in which patient confidentiality can be broken or must not be broken. By contrast, Chilean physicians, in agreement with their code of ethics, were much less supportive than French physicians of complete respect of patient confidentiality in all cases

  14. Oral disorders in Chilean rodeo horses submitted for dental evaluation between 2010 and 2013

    Directory of Open Access Journals (Sweden)

    Sebastián Guerra

    2016-09-01

    Full Text Available Dental disorders are common in horses. The objetive of the study was determined the frequency of dental problems in Chilean Rodeo Horses and described the most common dental treatments used in Chile. Oral examinations were performed on 456 Chilean rodeo horses and the disorders were observed as follows: Oral soft tissues, 259 horses (56% presented lacerations and/or ulcers. Regarding the first premolar, it was present in 32% of the horses, all maxillary positioned. In canines, 245 (54% were present and overlong tooth. Disorders found in incisors show supererupted (Tooth overlong in 147 (32%; ventral curvature in 116 (25%, nevertheless 102 (22% horses showed no abnormalities. About the diseases found in cheek teeth (premolars and molars, the more prevalent ones was enamel points in 426 (93%, rostral or caudal hooks in 354 (78%, and ramps in 231 (51%. Confidence intervals between all dental diseases found in the study showed no statistical significance when was analyzed for age or gender. When age groups were made, statistical significance appear X² Pearson (p=0,01, were mostly malocclusion type I was the more common in young, mature and geriatric horses. Other disorders such as problems at the time of eruption, development and periodontal disease are statiscally similar X² (p=0,07. About the treatments it is important to mention that in 453 (99% horses received odontoplasty and 147 (32% first premolar extraction. This study shows that Chilean rodeo horses have dental disorders similar to other horse breeds, except by small increase in soft tissue damage and incisors problems.

  15. Memory, Citizenship and the Public Sphere in the Development of the Recent Past in the Chilean Experience

    Directory of Open Access Journals (Sweden)

    Graciela Rubio

    2013-07-01

    Full Text Available The research gets into to the studies of historical memory by performing a hermeneutic analysis of the discourse of memory and history narratives that the Chilean public discussion has used to develop its dictatorial recent past in the period 1991-2004. Press sources, editorial inserts, interviews with the social and political actors and specially Truth and Reconciliation Reports were reviewed. We reflect on the current oligarchic long and short term frames made for the representation of the public sphere and the citizenship, emphasizing the impossibility of forgiveness as a restorative category of the political community.It consolidates the symbolic weakness of the recovered democracyin recent Chilean history.

  16. Free Trade Agreements and Firm-Product Markups in Chilean Manufacturing

    DEFF Research Database (Denmark)

    Lamorgese, A.R.; Linarello, A.; Warzynski, Frederic Michel Patrick

    In this paper, we use detailed information about firms' product portfolio to study how trade liberalization affects prices, markups and productivity. We document these effects using firm product level data in Chilean manufacturing following two major trade agreements with the EU and the US...... at the firm-product level. On average, adjustment on the profit margin does not appear to play a role. However, for more differentiated products, we find some evidence of an increase in markups, suggesting that firms do not fully pass-through increases in productivity on prices whenever they have enough...

  17. A chromosomal analysis of four species of Chilean Chrysomelinae (Coleoptera, Chrysomelidae

    Directory of Open Access Journals (Sweden)

    Eduard Petitpierre

    2012-10-01

    Full Text Available Four species of Chilean leaf beetles in the subfamily Chrysomelinae have been cytogenetically analyzed, Blaptea elguetai Petitpierre, 2011, Henicotherus porteri Bréthes, 1929 and Jolivetia obscura (Philippi, 1864 show 2n = 28 chromosomes and a 13 + Xyp male meioformula, and Pataya nitida (Philippi, 1864 has the highest number of 2n = 38 chromosomes. The karyotype of H. porteri is made of mostly small meta/submetacentric chromosomes, and that of Jolivetia obscura displays striking procentric blocks of heterochromatin at pachytene autosomic bivalents using conventional staining. These findings are discussed in relation to previous cytogenetic data and current taxonomy of the subfamily.

  18. Genotypic characterization of Chilean llama (Lama glama) and alpaca (Vicugna pacos) pestivirus isolates.

    Science.gov (United States)

    Aguirre, I M; Fuentes, R; Celedón, M O

    2014-01-31

    Llamas and alpacas are domesticated South American camelids (SACs) important to ancestral population in the Altiplano region, and to different communities worldwide where they have been introduced. These ungulates have shown to be susceptible to several livestock viral pathogens such as members of the Pestivirus genus, in particular Bovine Viral Diarrhea (BVDV), but there is little data available on Pestivirus infections in SACs. In this study we aimed to detect and identify Pestivirus genotypes and subgroups infecting SACs in both wild and confined environments. Samples were collected from 136 llamas and 30 alpacas from different areas in the Chilean Altiplano (wild animals), and from 22 llamas and 26 alpacas diagnosed as Pestivirus positive from the Metropolitana region in Chile (confined animals). Seroneutralization tests showed titers lower than 2 in all 166 samples from Chilean Altiplano. These samples were also negative to BVDV isolation, indicating that these animals have not been exposed to Pestivirus. After reactivation of positive samples from the Metropolitana region, the 5' non-codifying region (5'NCR) and E2 glycoprotein were amplified by RT-PCR from the Pestivirus genome. Viral sequences were pairwise compared and phylogenetic trees were constructed. The 5'NCR analysis showed that all 12 sequenced isolates belonged to BVDV-1. Of particular interest, isolates from eight llama and two alpaca were BVDV-1j and two alpacas were BVDV-1b. In agreement with these results, E2 phylogenetic analysis rendered a similar grouping indicating that all 16 isolates belong to BVDV-1. However, the lower availability of E2 sequences determines the creation of a smaller number of sub-groups than the 5'NCR sequences. Based on the E2 sequences, the 5'NCR BVDV 1j group consisting of all the llamas and 3 alpacas are completely included in the E2 BVDV 1e group. Due to the universal availability of the 5'NCR segment, we propose the classification of these Chilean llamas and

  19. Misconceptions of the p-value among Chilean and Italian Academic Psychologists

    Science.gov (United States)

    Badenes-Ribera, Laura; Frias-Navarro, Dolores; Iotti, Bryan; Bonilla-Campos, Amparo; Longobardi, Claudio

    2016-01-01

    Common misconceptions of p-values are based on certain beliefs and attributions about the significance of the results. Thus, they affect the professionals' decisions and jeopardize the quality of interventions and the accumulation of valid scientific knowledge. We conducted a survey on 164 academic psychologists (134 Italian, 30 Chilean) questioned on this topic. Our findings are consistent with previous research and suggest that some participants do not know how to correctly interpret p-values. The inverse probability fallacy presents the greatest comprehension problems, followed by the replication fallacy. These results highlight the importance of the statistical re-education of researchers. Recommendations for improving statistical cognition are proposed. PMID:27602007

  20. Mano a Mano-Mujer: an effective HIV prevention intervention for Chilean women.

    Science.gov (United States)

    Cianelli, Rosina; Ferrer, Lilian; Norr, Kathleen F; Miner, Sarah; Irarrazabal, Lisette; Bernales, Margarita; Peragallo, Nilda; Levy, Judith; Norr, James L; McElmurry, Beverly

    2012-01-01

    The impact of a professionally facilitated peer group intervention for HIV prevention among 400 low-income Chilean women was examined using a quasiexperimental design. At 3 months postintervention, the intervention group had higher HIV-related knowledge, more positive attitudes toward people living with HIV, fewer perceived condom use barriers, greater self- efficacy, higher HIV reduction behavioral intentions, more communication with partners about safer sex, and decreased depression symptoms. They did not, however, have increased condom use or self-esteem. More attention to gender barriers is needed. This intervention offers a model for reducing HIV for women in Chile and other Latin American countries.

  1. Border dimension of Chilean foreign policies: Immobility and urgency of new dynamics

    Directory of Open Access Journals (Sweden)

    Cristian Ovando Santana

    2011-07-01

    Full Text Available The following article draws the priorities of border public policy that define the Chilean foreign policy. Through a theoretical framework from the rational–reflective approach of International Relations, we argue that despite of the increasing openness, internationalization of the country, and the emergence of new actors and subnational initiatives; the views and options between the actors of this new area and the definitions of foreign policy not always match. We propose the need to establish mechanisms that settle the positions among regional social–political actors, intermediate agencies and the central level.

  2. Chilean Student Movement of 2011 and their impact on citizen claims from the regionalist margins

    Directory of Open Access Journals (Sweden)

    Javier Ramos Galleguillos

    2013-07-01

    Full Text Available One of the most significant social conflicts in Chile in 2011, was the student movement, which together with various social actors, promoted the slogan of democracy and quality in public education. Under this argument, this paper aims to analyze and describe how the Chilean Student Movement started in 2011, triggers citizen empowerment against political and economic system in favor of a welfare state transverse to the different social sectors. We explore also the repercussions in this movement for the formulation of new demands from regionalist margins in order to interpret the growing discontent and need oriented organizational break with the inequality gap in Chile.

  3. [Attitudes regarding the delivery of formal and informal care: comparison of French and Chilean adolescents].

    Science.gov (United States)

    Pommier, J; Deschamps, J P; Romero, M I; Zubarew, T; Billot, L; Crema, D; Mouchtouris, A

    2002-12-01

    The representations that youth have of health professionals and young people's demands in terms of the operation and administration of services create an original and complex problematic. Clearly, this originality implies the important differences from one culture to another. For this very reason, it seemed that a comparative study relating the representations and attitudes confronted when care is sought by young people from countries with different cultural contexts would assist in comprehending why adolescents have such particular ways of using--or not using--formal and self-administered health services. An original open-ended response questionnaire was jointly designed and validated by a French and Chilean team. A mutually agreed upon sample of 957 school children, adolescents aged from 14 to 19, participated in the study in France and in Chili. The following correlations were found. In the event of a sleeping problem (or other general worry that is physically manifested), the mother is the privileged confidant, and in the specific case of a relationship or emotional problem, it is usually one of the adolescents' friends. The general practitioner is the favoured professional person in the event of a purely physical problem. When confronted with an emotional problem, one-third of adolescents say that they would not consider going to a consultation. The expectations of the French toward health professionals are more often within the "emotional" arena than those of the Chileans which generally concern the "medical/technical" field. The practice of self-administered care is qualitatively similar but the French prefer taking medication whereas the Chileans prefer the "little home remedies". The use of natural medicine is more widespread among young Chileans, but the types of medicine used are similar, namely herbal teas and other plant-based remedies and homeopathy. These results have a variety of implications, especially in terms of the need for training health

  4. Nyctemeral variations of magnesium intake in the calcitic layer of a Chilean mollusk shell ( Concholepas concholepas, Gastropoda)

    Science.gov (United States)

    Lazareth, Claire E.; Guzman, Nury; Poitrasson, Franck; Candaudap, Frederic; Ortlieb, Luc

    2007-11-01

    Mollusk shells are increasingly used as records of past environmental conditions, particularly for sea-surface temperature (SST) reconstructions. Many recent studies tackled SST (and/or sea-surface salinity) tracers through variations in the elementary (Mg and Sr) or stable isotope (δ 18O) composition within mollusk shells. But such attempts, which sometimes include calibration studies on modern specimens, are not always conclusive. We present here a series of Mg and Sr analyses in the calcitic layer of Concholepas concholepas (Muricidae, Gastropoda) with a very high time-resolution on a time window covering about 1 and a half month of shell formation, performed by Laser Ablation Inductively-Coupled Plasma Mass Spectrometry (LA-ICP-MS) and electron probe micro-analysis (EPMA). The selected specimen of this common Chilean gastropod was grown under controlled environmental conditions and precise weekly time-marks were imprinted in the shell with calcein staining. Strontium variations in the shell are too limited to be interpreted in terms of environmental parameter changes. In contrast, Mg incorporation into the shell and growth rate appear to change systematically between night and day. During the day, Mg is incorporated at a higher rate than at night and this intake seems positively correlated with water temperature. The nightly reduced Mg incorporation is seemingly related to metabolically controlled processes, formation of organic-rich shell increments and nocturnal feeding activity of the animals. The nyctemeral Mg changes in the C. concholepas shell revealed in this study might explain at least part of the discrepancies observed in previous studies on the use of Mg as a SST proxy in mollusk shells. In the case of C. concholepas, Mg cannot be used straightforwardly as a SST proxy.

  5. Doctorado chileno en bibliotecología: Necesidad nacional Chilean Ph. D. in Library Science: a National Necessity

    Directory of Open Access Journals (Sweden)

    Ariel Rementería Piñones

    2008-04-01

    Full Text Available Se hace una reflexión sobre la implementación en Chile de un programa de doctorado en bibliotecología, se analiza la ley LOCE y su relación con los posgrados, y con el proceso de acreditación, se hace un breve análisis de los programas de magísteres ofrecidos en Chile en bibliotecología y su relación con la situación bibliotecaria del país. Se exponen los motivos que justificarían el desarrollo de un programa de doctorado de bibliotecología en Chile con base en los precarios resultados de los indicadores relacionados con la cantidad de recursos humanos altamente calificados en el área. Se concluye que existe la necesidad de aumentar la masa crítica de investigadores en la bibliotecología chilena a través de un programa doctoral.The implementation in Chile of a Ph. D. in Library Science is reflected upon and the Organic Constitutional Teaching Law (LOCE analysed in relation to postgraduate education. The master programs offered in Chile in Library Science are briefly outlined. The reasons which justify the development of the doctoral program are discussed in the light of the poor results suggested by indicators on the number of highly qualified human resources in the area. The need to increase the critical number of researchers in Chilean Library Science through a masters degree, is concluded.

  6. Trichococcus Patagoniensis sp. nov., a Facultative Anaerobe that grows at -5 C, Isolated from Penguin Guano in Chilean Patagonia

    Science.gov (United States)

    Pikuta, Elena V.; Hoover, Richard B.; Bej, Asim K.; Marsic, Damien; Whitman, William B.; Krader, Paul E.; Tang, Jane

    2006-01-01

    A novel, extremely psychrotolerant, facultative anaerobe, strain PmagGl(sup T), was isolated from guano of Magellanic penguins (Spheniscus magellanicus) collected in Chilean Patagonia. Gram-variable, motile cocci with a diameter of 1.3-2.0 micrometers were observed singularly or in pairs, short chains and irregular conglomerates. Growth occurred within the pH range 6.0-10.0, with optimum growth at pH 8.5. The temperature range for growth of the novel isolate was from -5 to 35 C, with optimum growth at 28-30 C. Strain PmagG1(sup T) did not require NaCl, as growth was observed in the presence of 0-6.5% NaCl with optimum growth at 0.5% (w/v). Strain PmagGl(sup T) was a catalase-negative chemo-organoheterotroph that used sugars and some organic acids as substrates. The metabolic end products were lactate, formate, acetate, ethanol and Con. Strain PmagG1(sup T) was sensitive to ampicillin, tetracycline, chloramphenicol, rifampicin, kanamycin and gentamicin. The G+C content of its genomic DNA was 45.8 mol%. 16S rRNA gene sequence analysis showed 100 % similarity of strain PmagG1(sup T) with Trichococcus collinsii ATCC BAA-296(sup T), but DNA-DNA hybridization between them demonstrated relatedness values of less than 45 plus or minus 1%. Another phylogenetically closely related species, Trichococcus pasteurii, showed 99.85 % similarity by 16s rRNA sequencing and DNA-DNA hybridization showed relatedness values of 47 plus or minus 1.5%. Based on genotypic and phenotypic characteristics, the novel species Trichococcus patagoniensis sp. nov. is proposed, with strain PmagG1(sup T) (=ATCC BAA-756(sup T)=JCM 12176(sup T)=CIP 108035(sup T)) as the type strain.

  7. Dietary habits and normal body mass index association in Chilean soldiers

    Directory of Open Access Journals (Sweden)

    Samuel Durán-Agüero

    2016-12-01

    Full Text Available Introduction: Eating habits of various age and professional groups has been evaluated. However, there is little information on the dietary habits of soldiers. The aim of this study is to associate eating habits with the normal body mass index (BMI in Chilean soldiers from Buin Regiment. Material and Methods: 412 soldiers were evaluated. Food survey and anthropometric evaluation was applied to each soldier. It was considered a normal BMI when the subject was between 18.5-24.9kg/m2, overweight between 25.0-29.9kg/m2 and obesity ≥30.0kg/m2, according to the WHO recommendations. Results: 41.2% of the soldiers show a normal BMI, 43.1% present overweight and 15.7% exhibit obesity. Only 5% meet the dairy and fruit Chilean recommendations, however almost 40% of them consume 1time/day (OR:0.41; IC95%:0.19-0.88 and legume consumption (>1time/week (OR:0.29; IC95%:0.14-0.60. Conclusions: A low consumption of dairy products, fruits, vegetables and legumes is noted, and a high consumption of sweetened beverages. In addition, intake of dairy products and legumes is related with a normal BMI.

  8. Synaptic effects of low molecular weight components from Chilean Black Widow spider venom.

    Science.gov (United States)

    Parodi, Jorge; Romero, Fernando

    2008-11-01

    alpha-Latrotoxin is the principal component of the venom from the euroasiatic Black Widow spider and has been studied for its pharmacological use as a synaptic modulator. Interestingly, smaller molecular weight fractions have been found to be associated with this toxin, but their cellular actions have not been studied in detail. The venom from the Chilean Black Widow spider (Latrodectus mactans) does not produce alpha-latrotoxin, however it does contain several small polypeptides. We have recently demonstrated cellular effects of these peptides at the synaptic level using whole-cell patch clamp techniques. Purified venom from the glands of L. mactans was studied in 12 DIV rat hippocampal neuronal cultures. Venom at a concentration of 10nM was able to decrease neuronal conductance thereby increasing membrane resistance. This effect on the passive properties of the neurons induced a change in action potential kinetics simulating the action of classic potassium channel blockers. These changes produced an increase in spontaneous synaptic activity in rat hippocampal cultures in the presence of the venom in a concentration- and time-dependent manner. These results indicate that venom from Chilean spider L. mactans is capable of increasing cell membrane resistance, prolonging the action potential and generating an increase in synaptic activity demonstrating an interesting pharmacological effect of these low molecular weight fragments.

  9. Associations between different components of fitness and fatness with academic performance in Chilean youths

    Science.gov (United States)

    2016-01-01

    Objectives To analyze the associations between different components of fitness and fatness with academic performance, adjusting the analysis by sex, age, socio-economic status, region and school type in a Chilean sample. Methods Data of fitness, fatness and academic performance was obtained from the Chilean System for the Assessment of Educational Quality test for eighth grade in 2011 and includes a sample of 18,746 subjects (49% females). Partial correlations adjusted by confounders were done to explore association between fitness and fatness components, and between the academic scores. Three unadjusted and adjusted linear regression models were done in order to analyze the associations of variables. Results Fatness has a negative association with academic performance when Body Mass Index (BMI) and Waist to Height Ratio (WHR) are assessed independently. When BMI and WHR are assessed jointly and adjusted by cofounders, WHR is more associated with academic performance than BMI, and only the association of WHR is positive. For fitness components, strength was the variable most associated with the academic performance. Cardiorespiratory capacity was not associated with academic performance if fatness and other fitness components are included in the model. Conclusions Fitness and fatness are associated with academic performance. WHR and strength are more related with academic performance than BMI and cardiorespiratory capacity. PMID:27761345

  10. The Epidemiology of Sleep Quality and Consumption of Stimulant Beverages among Patagonian Chilean College Students

    Directory of Open Access Journals (Sweden)

    Juan Carlos Vélez

    2013-01-01

    Full Text Available Objectives. (1 To assess sleep patterns and parameters of sleep quality among Chilean college students and (2 to evaluate the extent to which stimulant beverage use and other lifestyle characteristics are associated with poor sleep quality. Methods. A cross-sectional study was conducted among college students in Patagonia, Chile. Students were asked to complete a self-administered questionnaire to provide information about lifestyle and demographic characteristics. The Pittsburgh Sleep Quality Index (PSQI was used to evaluate sleep quality. In addition, students underwent a physical examination to collect anthropometric measurements. Results. More than half of students (51.8% exhibited poor sleep quality. Approximately 45% of study participants reported sleeping six hours or less per night and 9.8% used medications for sleep. In multivariate analysis, current smokers had significantly greater daytime dysfunction due to sleepiness and were more likely to use sleep medicines. Students who reported consumption of any stimulant beverage were 1.81 times as likely to have poor sleep quality compared with those who did not consume stimulant beverages (OR:1.81, 95% CI:1.21–2.00. Conclusions. Poor sleep quality is prevalent among Chilean college students, and stimulant beverage consumption was associated with the increased odds of poor sleep quality in this sample.

  11. METABOLIC SYNDROME AND PHYSICA L ACTIVITY IN CHILEAN IMMIGRANTS LIVING IN RIO GALLEGOS, SANTA CRUZ, ARGENTINA

    Directory of Open Access Journals (Sweden)

    Inger Sally Padilla

    2013-03-01

    Full Text Available To study the frequencyof metabolic syndrome, its components and its relationshipwithphysical activityin Chilean immigrants living inRío Gallegos, SantaCruz, Argentina.314 Chilean immigrants (165womenand 149men were interviewed in RioGallegos in2010,with healthy status in medical records(2000.Anthropometry,blood pressurecontrol,blood testto measureglucose,triglycerides andHDL cholesterol weredetermined.Metabolic syndromewasestablished bycriteria of theNCEPATPIII.Themetabolic syndromehad anoverall prevalenceof 28.9% (95%CI: 23.9 to 34.Metabolicsyndromeprevalence was larger in women(32.1%than in men(25.5%.The prevalence ofits componentswere:abdominalobesity56%,low levels ofHDL cholesterol 48.3%, highlevels of triglycerides68.1%,hypertension46.1%and high levels of glucose 72.5%.Inadequate physical activitywas 66.2% (95%CI:60.1 to 71.5.Immigrantshadmorelikelihoodof metabolic syndromeliving in Río Gallegos for 15 yearsormore(β:5.74,95%CI:2,81-11,73,p=0.000and withinadequate physical activity(β:3.36,95%CI:1.57to7.21,p=0.002.The prevalenceof metabolic syndrome inChileanimmigrantsliving in RíoGallegosis higherthan that reportedin Argentina andChile.

  12. Depressed mood and speech in Chilean mothers of 5½-year-old children.

    Science.gov (United States)

    Clark, Katy M; Su, Jing; Kaciroti, Niko; Castillo, Marcela; Millan, Rebeca; Rule, Heather; Lozoff, Besty

    2010-01-01

    Previous research on maternal speech and depression has focused almost exclusively on how depressed mothers talk to their infants and toddlers in the U.S. and U.K., two English-speaking countries. This study considered how depressed Spanish-speaking mothers from a Latin American country talk about their preschool-age children. Five-minute speech samples were provided by 178 Chilean mothers who were asked to talk about their 5½-year-old children to a project psychologist. Maternal depressive symptomatology was measured by the Spanish-language version of the Center for Epidemiologic Studies Depression Scale (CES-D). In multivariate analysis of covariance (MANCOVA), higher maternal depressed mood showed statistically significant associations with the following maternal speech characteristics: more criticisms, less laughter, fewer medium pauses, less positive satisfaction with the child's behavior or characteristics, a rating of a negative overall relationship with the child, and more crying (suggestive trend). A structural equation model confirmed these findings and found an indirect effect between laughter and criticisms: mothers with higher depressed mood who laughed less criticized their children less. The findings illustrate that depressed mood adversely affects how a group of Chilean mothers speak about their children.

  13. Profiling Space Heating Behavior in Chilean Social Housing: Towards Personalization of Energy Efficiency Measures

    Directory of Open Access Journals (Sweden)

    Victor Bunster

    2015-06-01

    Full Text Available Global increases in the demand for energy are imposing strong pressures over the environment while compromising the capacity of emerging economies to achieve sustainable development. In this context, implementation of effective strategies to reduce consumption in residential buildings has become a priority concern for policy makers as minor changes at the household scale can result in major energy savings. This study aims to contribute to ongoing research on energy consumer profiling by exploring the forecasting capabilities of discrete socio-economic factors that are accessible through social housing allocation systems. Accordingly, survey data gathered by the Chilean Ministry of Social Development was used identify key characteristics that may predict firewood usage for space heating purposes among potential beneficiaries of the Chilean social housing program. The analyzed data evidences strong correlations between general household characteristics and space heating behavior in certain climatic zones, suggesting that personalized delivery of energy efficiency measures can potentially increase the effectiveness of initiatives aimed towards the reduction of current patterns of consumption.

  14. IL28B polymorphisms associated with therapy response? ein inin Chilean chronic hepatitis C patients

    Institute of Scientific and Technical Information of China (English)

    Mauricio Venegas; Rodrigo A Villanueva; Katherine González; Javier Brahm

    2011-01-01

    AIM: To analyze the association of three IL28B single nucleotide polymorphisms with response to therapy in Chilean patients infected with hepatitis C virus (HCV).((HHCV))).. METHODS: We studied two groups of patients with chronic HHCV infection ((genotype 1)), under standard combined treatment with pegylated interferon plus ribavirin. One group consisted of 50 patients with sustained virological response, whereas the second group consisted of 49 null responders. In order to analyze the IL28B single nucleotide polymorphisms rs12979860, rs12980275 and rs8099917, samples were used for polymerase chain reaction amplification, and the genotyping was performed by restriction fragment length polymorphism. RESULTS: The IL28B rs12979860 CC, rs12980275 AA and rs8099917 TT genotypes were much more frequently found in patients with sustained virological response compared to null responders ((38%, 44% and 50% vs 2%, 8.2% and 8.2%, respectively)). These differences were highly significant in all three cases (P < 0.0001)). CONCLUSION: The three IL28B polymorphisms studied are strongly associated with sustained virological response to therapy in Chilean patients with chronic HHCV ((genotype 1)).

  15. Utilization of therapies for stress management in Chilean clinical dental students.

    Directory of Open Access Journals (Sweden)

    Francisco Pérez

    2015-12-01

    Full Text Available Dental students suffer greater stress than the rest of the university population. In general, most health students seek little assistance to help them cope with stress. The aim of this study is to evaluate the use of therapies to manage stress in Chilean clinical dental students. A cross-sectional study was conducted nationwide; this report is a secondary data analysis. The study population was dental students in clinical years (4th and 5th of 5 Chilean dental schools: Antofagasta, Valparaíso, Viña del Mar, Concepción, and La Frontera. This paper reports the use of therapies for stress management during the past six months considering four options: medical/psychiatric, psychological, self-medication and alternative. Tabulation and analysis were done in STATA 10/SE. Three hundred thirty-seven students were surveyed, 54.01% were men and 64.99% were in fourth year, with an average age of 22.94±2.04. The 48.07% of students have used any of the four types of therapies; women and fourth-year students use more any form of therapy with 53.30% (p=.037 and 48.86% (p=.694, respectively, than men and fifth year students. About half of the students have used some form of therapy to manage stress in the last six months; of the students that received therapy, the percentage of women was significantly higher.

  16. Association of burnout with stress, coping strategies and vocational satisfaction in Chilean clinical dental students.

    Directory of Open Access Journals (Sweden)

    Francisco Pérez

    2016-12-01

    Full Text Available Objective: Dental students are particularly affected by stress, which can lead to ‘burnout syndrome’ by association with other psychological factors. The aim of this study was to analyse the effect of perceived stress, coping strategies, and vocational satisfaction on the severity of burnout in Chilean dental students in the clinical years. Method: The study population was comprised of clinical dental students of five Chilean dental schools. The following variables were considered: age, gender, year of study, burnout, coping strategies, perceived stress, and vocational satisfaction. Statistical analysis included descriptive measures, correlation tests, and stepwise multiple regression analysis. Results: The final sample included 244 students. Three (1.23% students did not have burnout in any of its factors and 38 (15.57% had severe levels in all three factors. There was a statistically significant greater ‘emotional exhaustion’ in 4th year students. There was a statistically significant correlation of the three factors of burnout with ‘social withdrawal’ coping strategy, high levels of perceived stress, and low levels of present and future vocational satisfaction. Conclusion: Most students presented moderate and high levels of burnout. This situation is associated with dysfunctional coping strategies, high levels of perceived stress, and low levels of present and future vocational satisfaction.

  17. [The evolution of Chilean universities from 1981 to 2004].

    Science.gov (United States)

    Cruz-Coke, Ricardo

    2004-12-01

    In 1981, a supreme decree allowed the creation of private universities in Chile. As a consequence, 50 new universities were created in one decade, under the surveillance of the Council for Superior Education. This paper analyzes the evolution of this expansion process, that resulted in an admission of 370,000 students to 60 universities along the country, during 2004. At the moment, 42% of the universities, designed as traditional, receive state financing and 58% are private. Twenty six percent are owned by the state, 52% are secular and 22% are confessional. The 25 traditional universities are complex organizations of a high academic level. New private universities are only devoted to teaching and some have obtained their autonomy. Some have improved the quality of their academic staff, perform research and impart doctorate degrees. However, most are small and with a limited academic staff. Traditional universities are stratified in a superior level. Eight private universities and some regional institutions, that are becoming complex and performing research activities, are stratified in a middle level. Two thirds of the private universities are in the lower level. The expansion of superior education is a sign of the social and cultural progress that Chile has experienced.

  18. Synthetic Biology: opportunities for Chilean bioindustry and education.

    Science.gov (United States)

    Federici, Fernán; Rudge, Timothy J; Pollak, Bernardo; Haseloff, Jim; Gutiérrez, Rodrigo A

    2013-01-01

    In an age of pressing challenges for sustainable production of energy and food, the new field of Synthetic Biology has emerged as a promising approach to engineer biological systems. Synthetic Biology is formulating the design principles to engineer affordable, scalable, predictable and robust functions in biological systems. In addition to efficient transfer of evolved traits from one organism to another, Synthetic Biology offers a new and radical approach to bottom-up engineering of sensors, actuators, dynamical controllers and the biological chassis they are embedded in. Because it abstracts much of the mechanistic details underlying biological component behavior, Synthetic Biology methods and resources can be readily used by interdisciplinary teams to tackle complex problems. In addition, the advent of robust new methods for the assembly of large genetic circuits enables teaching Biology and Bioengineering in a learning-by-making fashion for diverse backgrounds at the graduate, undergraduate and high school levels. Synthetic Biology offers unique opportunities to empower interdisciplinary training, research and industrial development in Chile for a technology that promises a significant role in this century's economy.

  19. THE MAKING OF AN UNLIKELY CHILEAN FASCIST: REFLECTIONS ON THE INTELLECTUAL DEVELOPMENT AND POLITICAL WORK OF CARLOS KELLER RUEFF

    Directory of Open Access Journals (Sweden)

    Marcus Klein

    2002-01-01

    Full Text Available This article deals with the intellectual evolution and political activities of Carlos Keller Rueff between the early 1920s and the late 1930s. It discusses his development from a German nationalist to a Chilean fascist during the course of this eventful period. In the 1920s Keller, who started his career in the Deutsch-Chilenischer Bund, the umbrella organisation of the German-Chilean community, expressed German National positions. Only at the end of the decade he began to distance himself from his narrow, sectarian German sub-culture and took a broader, national view, a development that coincided with his move from Concepción to Santiago and the failure of his plan to revive the immigration of Germans to Chile. With the book La eterna crisis chilena, published in 1931, he finally emerged as a Chilean nationalist and gained the reputation of an intellectual. One year later, in April 1932, he was, together with Jorge González von Marées, one of the founding members of the Chilean Movimiento Nacional Socialista (MNS. Keller became the movement’s ideologue and its second most prominent leader. This career abruptly ended with the failed nacista coup of 5 September 1938 and the subsequent transformation of the MNS into the Vanguardia Popular Socialista

  20. Variation in implementation of corporate social responsibility practices in emerging economies' firms: A survey of Chilean fruit exporters

    NARCIS (Netherlands)

    Klerkx, L.W.A.; Villalobos, P.; Engler, A.

    2012-01-01

    As in many sectors in emerging economies, the concept of corporate social responsibility (CSR) has become important for exporting agri-food firms in view of their integration in global supply chains. The purpose of this research was to assess the implementation by Chilean fruit exporters of CSR prac

  1. Filamentous bacteria inhabiting the sheaths of marine Thioploca spp. on the Chilean continental shelf

    DEFF Research Database (Denmark)

    Teske, Andreas; Jørgensen, Bo Barker; Gallardo, Victor A.

    2009-01-01

    A new component of the benthic Thioploca mat microbial ecosystem on the Chilean continental shelf was detected by epifluorescence microscopy: filamentous, bacterial endobionts of 4-5-μm filament diameter and length sometimes exceeding 1 mm. These filaments were identified as growing within Thiopl...

  2. Modeling the Impacts of National and Institutional Financial Aid Opportunities on Persistence at an Elite Chilean University

    Science.gov (United States)

    Horn, Catherine; Santelices, María Verónica; Avendaño, Ximena Catalán

    2014-01-01

    Much of the recent Chilean educational debate and reform has centered around issues of higher education cost, debt burden, and availability of grants versus loans. This quantitative case study of Pontificia Universidad Católica de Chile sought to understand the longitudinal contributions of combinations of types of financial aid to persistence of…

  3. Inter-subjectivity and Domestication in the Making of a Global Region: Territorialization of Salmon in the Chilean Patagonia.

    NARCIS (Netherlands)

    Blanco, Gustavo; Arce, A.M.G.; Fisher, E.F.

    2016-01-01

    This article examines transformations in the Chilean Patagonia, a region that has become a world leader in Salmon production for global markets. Employing ethnographic methods, this study examines the possibilities of considering inter-subjectivities in the processes of conforming important regions

  4. Identidades en movimiento: familias chilenas en la fruticultura del Alto Valle de Río Negro, Argentina Identities in movement: chilean families in the fruit production of the Alto Valle de Río Negro, Argentina

    Directory of Open Access Journals (Sweden)

    Verónica Trpin

    2007-12-01

    Full Text Available Este artículo, basado en el trabajo de campo realizado en áreas rurales del Alto Valle de Río Negro, Argentina, desde el año 1999, tiene como propósito presentar las relaciones en las cuales se insertan hombres y mujeres chilenas que residen y trabajan en "chacras" destinadas a la producción frutícola. Las diferentes actividades en las chacras se organizan según el sexo y la edad, definiéndose una segmentación del mercado de trabajo en la que se ven involucrados los diferentes miembros de la familia. Como desarrollaré, ser trabajadores chilenos en la fruticultura del Alto Valle de Río Negro reproduce una identidad étnica y nacional en el seno de la cotidianeidad familiar y laboral.This article, based on field work conducted in rural areas of the Alto Valle de Río Negro, Argentina, from 1999 on, analyzes the relations in which Chilean men and women who reside and work in small farms destined to fruit production are inserted. The different activities in the small farms are organized according to sex and age, circumscribing a segment of the labor market in which different members of the family are involved. As I will demonstrate, to be a Chilean worker in the fruit growing region of the Alto Valle is to reproduce an ethnic and national identity through work routines mediated by family relations.

  5. Comparing Sociodemographic Factors Associated with Disability Between Immigrants and the Chilean-Born: Are There Different Stories to Tell?

    Directory of Open Access Journals (Sweden)

    Baltica Cabieses

    2012-12-01

    Full Text Available This study explored a range of sociodemographic factors associated with disability among international immigrants in Chile, and compared them to the Chilean-born. Secondary data analysis of the Chilean population-based survey CASEN-2006 was conducted (268,873 participants. Main health outcomes: any disability and six different types of disability: visual, hearing, learning, physical, psychiatric and speaking (binary outcomes. Sociodemographic variables: Demographic factors (age, sex, marital status, urban/rural, ethnicity, socioeconomic status (SES: income, education, employment status, and an integrated indicator combining the SES measures through cluster analysis for the immigrant population, material factors (overcrowding, sanitation, housing quality and migration related (country of origin and length of stay. Immigrants reported a significantly lower prevalence of any disability (3.55%, visual (1.00% and physical disability (0.38%. Factors associated with any disability among immigrants were age, low SES or over 20 years duration of residence in Chile; while a range of sociodemographic factors were associated with disability in the Chilean-born. Conditional regression models by age group varied between populations, but SES remained significantly associated with disability across immigrants and the Chilean-born. However, there are no similar patterns of factors associated to different types of disability between the populations under study. Factors associated with disability varied between populations under study, but SES showed a consistent association with any disability in immigrants and the Chilean-born. Types of disability showed different patterns of factors associated to them between populations, which suggest the great complexity of underlying mechanisms related to disability in Chile.

  6. Increasing organ donation by presumed consent and allocation priority: Chile.

    Science.gov (United States)

    Zúñiga-Fajuri, Alejandra

    2015-03-01

    Chile, a middle-income country, recently joined Israel and Singapore as the world's only countries to require reciprocity as a precondition for organ transplantation. The Chilean reform includes opt-out provisions designed to foster donation and priority for organ transplantation for registered people. Although the reform has had serious difficulties in achieving its mission, it can be reviewed by other countries that seek to address the serious shortage of organs. As increased organ donation can substantially enhance or save more lives, the effect on organ availability due to incentives arising from rules of preference should not be underestimated.

  7. Sequence similarities of the capsid gene of Chilean and European isolates of infectious pancreatic necrosis virus point towards a common origin.

    Science.gov (United States)

    Mutoloki, Stephen; Evensen, Øystein

    2011-07-01

    The Chilean salmonid industry was developed by importing breeding materials, a practice still in effect due to deficits in the national supply of roe. Importation of breeding materials is often associated with the transmission of pathogens. The objectives of this study were to compare the infectious pancreatic necrosis virus (IPNV) isolates from Chile to those of European origin and to determine the diversity of the Chilean IPNV. The VP2 genes of IPNV from Chilean fish (whose eggs originated from Scotland, Iceland and Norway) were compared to isolates from fish in Norway and Ireland. The results show that the isolates are identical (97-99%) and cluster into one genogroup. Our findings support previous reports of association between the trade-in breeding materials and transmission of pathogens. Furthermore, our results demonstrate the genotypic diversity of Chilean IPNV isolates. These findings have important implications for IPNV disease diagnosis and control in Chile.

  8. Dispossess to accumulate: reflections on the contradictions of the process of neoliberal modernization of Chilean agriculture

    Directory of Open Access Journals (Sweden)

    Luis Fernando De Matheus e Silva

    2016-04-01

    Full Text Available The intention of this paper is to present a renewed and critical reading about the contradictions engendered by the neoliberal modernization of the Chilean agriculture. This task is carried out through the lens of the "historical-geographical materialism" developed mainly by the British geographer David Harvey, and also through agrarian studies linked to the critical thinking, especially Marxists. As the main empirical substrate, information and data supplied by documents and studies that have sought to understand the specific case of contemporary capitalist development in Chile as well as its consequences for the countryside and national peasants are used. It is sustained here that the mechanisms of “accumulation by dispossession” were (and still are of critical importance to make Chile a world-wide agricultural and food.

  9. The HLA-A*68:23 allele in the Chilean population.

    Science.gov (United States)

    Turner, E V; Dilioglou, S; Arnold, P Y; Palma, J; Rivera, G

    2014-12-01

    HLA-A*68:23, first described in 2002, has not been widely reported. The studies reported here were performed for support of a collaborative hematopoietic stem cell transplantation program at Luis Calvo Mackenna Hospital for which St. Jude Children's Research Hospital provided human leukocyte antigen (HLA) typing. Family studies performed between 2000 and 2011 included 197 patients and their immediate family members. In a total of 559 individuals, A*68:23 was confirmed by DNA sequencing in eight individuals with no known relationship to each other. A*68:23 positive individuals included six patients, along with one of their parents, and two parents whose children did not inherit A*68:23. The frequency of A*68:23 in this Chilean population is >0.0125. This HLA-A allele appears to fit the description of a well-documented allele in this population studied in Santiago, Chile.

  10. Policy Positions in the Chilean Senate: An Analysis of Coauthorship and Roll Call Data

    Directory of Open Access Journals (Sweden)

    Eduardo Alemán

    2008-12-01

    Full Text Available This paper examines the policy positions of Chilean senators. The empirical analysis focuses on two different legislative activities: voting and coauthoring bills. The roll call analysis evaluates the degree to which coalitions act as cohesive policy teams on the floor of Congress, whether parties’ positions match conventional ideological rankings, and the dimensionality of voting decisions. The coauthorship analysis provides alternative ideal points to examine similar questions. The findings of the voting analysis reveal a rather unidimensional world with two distinct clusters matching coalitional affiliation, while the analysis of coauthorship illuminates a more complex pattern of associations. Neither roll call votes nor coauthorship patterns, however, reveal substantive fissures within the governing coalition. In comparison, the opposition coalition appears more divided along partisan lines.

  11. BUILDING A MORE EFFICACIOUS CHILEAN BUREAUCRACY: LESSONS FROM THE SINGAPORE CASE

    Directory of Open Access Journals (Sweden)

    Andy Hira

    2014-12-01

    Full Text Available Chile has a remarkable record of historically low levels of corruption. The Chilean state, nonetheless, faces issues of modernization as reflected in current reform efforts. This article offers a sketch of certain features of the Singapore civil service, known by wide reputation as one of the most effective in the world, for consideration as part of this process. The article briefly examines Singapore’s recruitment, evaluation and promotion, and training systems. In comparison with Chile, we find important contrasts including permanent employment, high levels of competition reflecting an embrace of objectively measurable meritocracy, vigorous training, and a strong sense of public mission backed by the ability to develop long-term vision.

  12. Genetic diversity of Chilean and Brazilian alstroemeria species assessed by AFLP analysis.

    Science.gov (United States)

    Han, T H; de Jeu, M; van Eck, H; Jacobsen, E

    2000-05-01

    One to three accessions of 22 Alstroemeria species, an interspecific hybrid (A. aurea x A. inodora), and single accessions of Bomarea salsilla and Leontochir ovallei were evaluated using the AFLP-marker technique to estimate the genetic diversity within the genus Alstroemeria. Three primer combinations generated 716 markers and discriminated all Alstroemeria species. The dendrogram inferred from the AFLP fingerprints supported the conjecture of the generic separation of the Chilean and Brazilian Alstroemeria species. The principal co-ordinate plot showed the separate allocation of the A. ligtu group and the allocation of A. aurea, which has a wide range of geographical distribution and genetic variation, in the middle of other Alstroemeria species. The genetic distances, based on AFLP markers, determined the genomic contribution of the parents to the interspecific hybrid.

  13. [Quality control in Medicine. Position of the Chilean Academy of Medicine].

    Science.gov (United States)

    Goic, A; Segovia, S

    2001-07-01

    In the last two decades, important changes in medical training and care have occurred in Chile. The number of medical schools has been doubled, exceeding the national availability of professors and qualified training fields. The quality assessment and accreditation of medical training and care is insufficient in Chile. A National Autonomous Corporation of Certification of Medical Specialties, has certified more than 4,000 physicians in 44 specialties. The Chilean Association of Faculties of Medicine has accredited training centers during the last four decades. The National Commission of Undergraduate Training Accreditation, has developed a voluntary system for medical school accreditation. The Academy supports these strategies and considers that accreditation does not threaten institutions or individuals. It is rather a mechanism that identifies strengths and weaknesses of institutions and programs. This will finally result in better quality in medical training and patient care.

  14. The french abysm the chilean conservative and the revolutionary france 1964-1890

    Directory of Open Access Journals (Sweden)

    Francisco Alejandro García Naranjo

    2011-07-01

    Full Text Available This text aims at building a sight that the Chilean Conservative of the second half of XIX century had upon revolutionary tradition in France. Since the study of the parliamentary speeches and the politics works of conjuncture elaborated by the conservative between 1864 and 1890 as well as the inquest of the magazine “The independent”, members of the conservative party argued courageously with the radical and liberal press house of Chile. It is shown that a conservative mentality in Chile explained the breaking of the current time, secularization of the public life and the spoil of the temporary powers of the Catholic Church since the “pernicious” inluence of the “fatal doctrines” coming from the “Evil France” that had in the reddish the “Liberalism of the bad law” and the “Jacobean Liberalism to its main proponents.

  15. My child and his siblings: women’s experience of first maternity in Chilean stepfamilies

    Directory of Open Access Journals (Sweden)

    J. Carola Pérez Ewert

    2011-05-01

    Full Text Available This qualitative study shows the perception of a group of Chilean women aged between 29 and 39 years regarding their experience of having their first child when they are members of a simple stepfamily. Sixteen women, whose partners maintain active contact with their child(ren born in previous relationships were interviewed. Results confirm the existence of a process of “becoming a mother” and its course depends on stepchildren’s presence. In addition our more relevant findings show that the specific topics of fears and motivations of having a child depend on the particular stepfamilycontext, and women’s experiences is that this process vary according to the perceived quality of stepmother/stepchildren relationships.

  16. Percieved resources as a predictor of satisfaction with food-related life among chilean elderly

    DEFF Research Database (Denmark)

    Lobos, German; Schnettler, B.; Grunert, Klaus G

    2017-01-01

    Objective: The main objective of this study is to show why perceived resources are a strong predictor of satisfaction with food-related life in Chilean older adults. Design, sampling and participants: A survey was conducted in rural and urban areas in 30 communes of the Maule Region with 785...... participants over 60 years of age who live in their own homes. The Satisfaction with Food-related Life (SWFL) scale was used. Generalized linear models (GLM) were used for the regression analysis. Results: The results led to different considerations: First, older adults’ perceived levels of resources...... are a good reflection of their actual levels of resources. Second, the individuals rated the sum of the perceived resources as ‘highly important’ to explain older adults’ satisfaction with food-related life. Third, SWFL was predicted by satisfaction with economic situation, family importance, quantity...

  17. Preliminary Psychometric examination of the Davidson Trauma Scale: A study on chileans adolescent

    Directory of Open Access Journals (Sweden)

    Cristobal Guerra

    2013-12-01

    Full Text Available Davidson Trauma Scale (DTS measures the frequency and severity of the posttraumatic Stress Disorder pTSD. Since chile has limited data about validity and reliability of instruments to measure pTSD, this study evaluated psychometric properties of the scale in a sample of 130 adolescents between 13 and 18 years (M= 15,78; DT= 1,40. Some of them were traumatized patients and others were from general population. They answered the DTS, a depression and an anxiety scale. The scale obtained adequate internal consistency scores, showed convergent validity (DTS score was associated moderately, directly and significantly with depression and anxiety scores, and discriminated between clinical sample and general population. DTS seems to be a valid and reliable instrument in chilean adolescents.

  18. [The absence of stewardship in the Chilean health authority after the 2004 health reform].

    Science.gov (United States)

    Herrera, Tania; Sánchez, Sergio

    2014-01-01

    Stewardship is the most important political function of a health system. It is a government responsibility carried out by the health authority. Among other dimensions, it is also a meta-function that includes conduction and regulation. The Health Authority and Management Act, which came about from the health reform of 2004, separated the functions of service provision and stewardship with the aim of strengthening the role of the health authority. However, the current structure of the health system contains overlapping functions between the different entities that leads to lack of coordination and inconsistencies, and a greater weight on individual health actions at the expense of collective ones. Consequently, a properly funded national health strategy to improve the health of the population is missing. Additionally, the components of citizen participation and governance are weak. It is necessary, therefore, to revisit the Chilean health structure in order to develop one that truly enables the exercise of the health authority’s stewardship role.

  19. Crustacean zooplankton species richness in Chilean lakes and ponds (23°-51°S

    Directory of Open Access Journals (Sweden)

    Patricio De los Ríos-Escalante

    2013-07-01

    Full Text Available Chilean inland-water ecosystems are characterized by their low species-level biodiversity. This study analyses available data on surface area, maximum depth, conductivity, chlorophyll-α concentration, and zooplankton crustacean species number in lakes and ponds between 23° and 51°S. The study uses multiple regression analysis to identify the potential factors affecting the species number. The partial correlation analysis indicated a direct significant correlation between chlorophyll-α concentration and species number, whereas the multiple regression analysis indicated a direct significant response of species number to latitude and chlorophyll-α concentration. These results agree with findings from comparable ecosystems in Argentina and New Zealand.

  20. Trematodes indicate animal biodiversity in the chilean intertidal and Lake Tanganyika

    Science.gov (United States)

    Hechinger, R.F.; Lafferty, K.D.; Kuris, A.M.

    2008-01-01

    Trematode communities in populations of estuarine snails can reflect surrounding animal diversity, abundance, and trophic interactions. We know less about the potential for trematodes to serve as bioindicators in other habitats. Here, we reanalyze data from 2 published studies concerning trematodes, 1 in the Chilean rocky intertidal zone and the other from the East African rift lake, Lake Tanganyika. Our analyses indicate that trematodes are more common in protected areas and that in both habitats they are directly and positively related to surrounding host abundance. This further supports the notion that trematodes in first intermediate hosts can serve as bioindicators of the condition of free-living animal communities in diverse ecosystems. ?? American Society of Parasitologists 2008.

  1. A new species of Heleobia (Caenogastropoda: Cochliopidae) from the Chilean Altiplano.

    Science.gov (United States)

    Collado, Gonzalo A; Valladares, Moisés A; Méndez, Marco A

    2016-07-11

    Cochliopidae Tryon, 1866 is a diverse family of caenogastropods that lives in a wide variety of aquatic habitats primarily in the New World (Hershler &Thompson 1992). In Chile, the species of the group have been traditionally assigned to the genus Littoridina Souleyet, 1852 using conchological characters (Biese 1944, 1947; Stuardo, 1961; Valdovinos 2006) but according to anatomical studies and phylogenetic analysis the majority of them have been reassigned to the genus Heleobia Stimpson, 1865 (Hershler & Thompson 1992; Collado et al. 2011a; Kroll et al. 2012; Collado et al. 2013; Collado et al. 2016). Here we formally describe a new species of the genus Heleobia from Spring 1 in the Carcote saltpan, Chilean Altiplano, based on molecular and morphological characters. Snails from this locality were previously shown to be distinct based on DNA sequences (Collado et al. 2013; Collado et al. 2016).

  2. Chilean jagged lobster, Projasus bahamondei, in the southeastern Pacific Ocean: current state of knowledge

    Directory of Open Access Journals (Sweden)

    Patricio M Arana

    2014-03-01

    Full Text Available The Chilean jagged lobster (Projasus bahamondei is a deep-water crustacean (175-550 m occurring in certain areas of the southeastern Pacific Ocean, including the Nazca Ridge, Desventuradas Islands, the Juan Fernandez archipelago and ridge, and the continental slope off the central coast of Chile. This review describes the taxonomic status, geographical and bathymetric distribution, some biological aspects and habitat characteristics of this species. Additionally, both artisanal and industrial exploitation attempts made within the region are detailed, as well as fishing operation results, chemical composition, different elaboration procedures and the destination of the catch. The main objectives of this review are to contribute to the knowledge of P. bahamondei as a component of the deep-sea ecosystem and to highlight its importance as a potential fishery resource.

  3. Psychometric properties of the personal wellbeing index in Brazilian and Chilean adolescents including spirituality and religion

    Directory of Open Access Journals (Sweden)

    Jorge Castellá Sarriera

    2014-12-01

    Full Text Available This study compared the 7-item Personal Wellbeing Index (PWI with two other versions which include the domains "Spirituality" and "Religion", separately, in a sample of Brazilian (n = 1.047 and Chilean (n = 1.053 adolescents. A comparison of psychometric properties between the PWI versions was carried out through multigroup confirmatory factor analysis showing adequate adjustments (CFI > .95, RMSEA < .08, whereas the item spirituality presented better performance. For the analysis of the differential contribution of each domain to the notion of global satisfaction, a regression on the item Overall Life Satisfaction (OLS was applied using structural equations. It is recommended the inclusion of the item spirituality in the original scale, considering the importance of such domain in both cultures.

  4. Autoimmune pulmonary proteinosis in a Chilean teenager, a rare aetiology of interstitial lung disease.

    Science.gov (United States)

    Strickler, Alexis; Boza, Maria Lina; Koppmann, Andres; Gonzalez, Sergio

    2014-05-23

    Interstitial lung disease (ILD) is rare and encompasses a heterogeneous group of diseases, and is even rarer in children than in adults. ILDs compromise more than 100 different entities, including pulmonary alveolar proteinosis (PAP). There are many causes of PAP in children, including surfactant protein gene mutations (SFTPB, SFTPC, ABCA3, TTF-1), GMCSF receptor mutations and antigranulocyte-macrophage colony-stimulating factor autoantibodies. We report a case of a 13-year-old Chilean girl who presented with an 8-month history of progressive exercise intolerance, fatigability and diminished school performance. Physical examination revealed resting tachypnoea, a few basal bilateral inspiratory crackles, and hypoxaemia on minimal exertion. Clinical suspicion and evaluation, including international collaboration, led to the diagnosis of autoimmune PAP and specific therapy for the condition.

  5. Characterization of Baker Fjord region through its heavy metal content on sediments (Central Chilean Patagonia

    Directory of Open Access Journals (Sweden)

    Ramón Ahumada

    2015-07-01

    Full Text Available The spatial distribution of heavy metals content (Ba, Cd, Cu, Pb, Sr and Zn in sediments of the Baker Fjord and surrounding channels in the central region of the Chilean fjords (47°45'S, 48°15'S is analyzed. The aim of the study was characterized the patterns of abundance and distribution of these metals in surface sediments. The area corresponds to a poorly studied zone with low human activity. Distribution patterns would be influenced by rainfall conditions (local erosion, fluvial (continental sediments carried by rivers, glacier (glacier flour and estuarine circulation. Cluster analysis allows differentiation among the sampled sites and group with similar characteristics. Finally, the concentrations found were contrasted with average values of metamorphic rocks and show with some certainty that the values found for calendar for this area and the greatest concentrations are the result of natural enrichment.

  6. Alcohol, binge drinking and associated mental health problems in young urban Chileans.

    Directory of Open Access Journals (Sweden)

    Amanda J Mason-Jones

    Full Text Available To explore the link between alcohol use, binge drinking and mental health problems in a representative sample of adolescent and young adult Chileans.Age and sex-adjusted Odds Ratios (OR for four mental wellbeing measures were estimated with separate conditional logistic regression models for adolescents aged 15-20 years, and young adults aged 21-25 years, using population-based estimates of alcohol use prevalence rates from the Chilean National Health Survey 2010.Sixty five per cent of adolescents and 85% of young adults reported drinking alcohol in the last year and of those 83% per cent of adolescents and 86% of young adults reported binge drinking in the previous month. Adolescents who reported binging alcohol were also more likely, compared to young adults, to report being always or almost always depressed (OR 12.97 [95% CI, 1.86-19.54] or to feel very anxious in the last month (OR 9.37 [1.77-19.54]. Adolescent females were more likely to report poor life satisfaction in the previous year than adolescent males (OR 8.50 [1.61-15.78], feel always or almost always depressed (OR 3.41 [1.25-9.58]. Being female was also associated with a self-reported diagnosis of depression for both age groups (adolescents, OR 4.74 [1.49-15.08] and young adults, OR 4.08 [1.65-10.05].Young people in Chile self-report a high prevalence of alcohol use, binge drinking and associated mental health problems. The harms associated with alcohol consumption need to be highlighted through evidence-based prevention programs. Health and education systems need to be strengthened to screen and support young people. Focussing on policy initiatives to limit beverage companies targeting alcohol to young people will also be needed.

  7. Locking, mass flux and topographic response at convergent plate boundaries - the Chilean case

    Science.gov (United States)

    Oncken, Onno

    2016-04-01

    On the long term, convergent plate boundaries have been shown to be controlled by either accretion/underplating or by subduction erosion. Vertical surface motion is coupled to convergence rate - typically with an uplift rate of the coastal area ranging from 0 to +50% of convergence rate in accretive systems, and -20 to +30% in erosive systems. Vertical kinematics, however, are not necessarily linked to horizontal strain mode, i.e. upper plate shortening or extension, in a simple way. This range of kinematic behaviors - as well as their acceleration where forearcs collide with oceanic ridges/plateau - is well expressed along the Chilean plate margin. Towards the short end of the time scale, deformation appears to exhibit a close correlation with the frictional properties and geodetic locking at the plate interface. Corroborating analogue experiments of strain accumulation during multiple earthquake cycles, forearc deformation and uplift focus above the downdip and updip end of seismic coupling and slip and are each related to a particular stage of the seismic cycle, but with opposite trends for both domains. Similarly, barriers separating locked domains along strike appear to accumulate most upper plate faulting interseismically. Hence, locking patters are reflected in topography. From the long-term memory contained in the forearc topography the relief of the Chilean forearc seems to reflect long term stability of the observed heterogeneity of locking at the plate interface. This has fundamental implications for spatial and temporal distribution of seismic hazard. Finally, the nature of locking at the plate interface controlling the above kinematic behavior appears to be strongly controlled by the degree of fluid overpressuring at the plate interface suggesting that the hydraulic system at the interface takes a key role for the forearc response.

  8. [Evaluation of antimicrobial consumption en 15 Chilean hospitals: Results of a collaborative work, 2013].

    Science.gov (United States)

    Domínguez, Isabel; Rosales, Ruth; Cabello, Ángela; Bavestrello, Luis; Labarca, Jaime

    2016-06-01

    Surveillance of antimicrobial consumption is a central part in programs of antibiotic stewardship. However, in Chile there are no national data on antibiotic consumption representing a significant number of hospitals by clinical services. In 2013 a survey was sent to multiple Chilean hospitals to evaluate antimicrobial consumption in medical services (MS), surgery services (SS) and critical care units (ICU). We used the standardized methodology recommended by the WHO, using the number of DDD/100 days beds. In the MS and SS beta-lactam and no beta-lactam antibiotics commonly used were evaluated. In the ICU consumption vancomycin, linezolid, imipenem, merope-nem, colistin and tigecycline was evaluated. Fifteen hospitals reported the density of antimicrobial consumption. Ceftriaxone and cloxacillin were the most commonly used antibiotics in general services (average cloxacillin 4,9 DDD/100 bed days in MS and 8,0 DDD/100 in SS; ceftriaxone 13,5 DDD/100 in MS and 16,7 DDD/100 in SS). In the SS there was also a significant consumption of metronidazole (average 14,5 DDD/100 bed days). In the ICU there was an important variability of consumption of selected antibiotics. This study reports the average and range of antibiotic consumption in MS, SS, and ICU from a significant number of hospitals in the country, during 2013. This information allows hospitals to compare their consumption of antibiotics with a significant sample of Chilean hospitals. Analysis of this information should consider a careful interpretation according to the sample shown here and the reality of each hospital.

  9. Molecular characterization and antibiotic resistance of Enterococcus species from gut microbiota of Chilean Altiplano camelids

    Directory of Open Access Journals (Sweden)

    Katheryne Guerrero-Olmos

    2014-10-01

    Full Text Available Background: Enterococcus is one of the major human pathogens able to acquire multiple antibiotic-resistant markers as well as virulence factors which also colonize remote ecosystems, including wild animals. In this work, we characterized the Enterococcus population colonizing the gut of Chilean Altiplano camelids without foreign human contact. Material and methods: Rectal swabs from 40 llamas and 10 alpacas were seeded in M-Enterococcus agar, and we selected a total of 57 isolates. Species identification was performed by biochemical classical tests, semi-automated WIDER system, mass spectrometry analysis by MALDI-TOF (matrix-assisted laser desorption/ionization with a time-of-flight mass spectrometer, and, finally, nucleotide sequence of internal fragments of the 16S rRNA, rpoB, pheS, and aac(6-I genes. Genetic diversity was measured by pulsed field gel electrophoresis (PFGE-SmaI, whereas the antibiotic susceptibility was determined by the WIDER system. Carriage of virulence factors was explored by polymerase chain reaction (PCR. Results: Our results demonstrated that the most prevalent specie was Enterococcus hirae (82%, followed by other non–Enterococcus faecalis and non–Enterococcus faecium species. Some discrepancies were detected among the identification methods used, and the most reliable were the rpoB, pheS, and aac(6-I nucleotide sequencing. Selected isolates exhibited susceptibility to almost all studied antibiotics, and virulence factors were not detected by PCR. Finally, some predominant clones were characterized by PFGE into a diverse genetic background. Conclusion: Enterococcus species from the Chilean camelids’ gut microbiota were different from those adapted to humans, and they remained free of antibiotic resistance mechanisms as well as virulence factors.

  10. Family and parenting characteristics associated with marijuana use by Chilean adolescents

    Directory of Open Access Journals (Sweden)

    Andrew Grogan-Kaylor

    2011-03-01

    Full Text Available Cristina B Bares1, Jorge Delva2, Andrew Grogan-Kaylor2, Fernando Andrade31Curtis Research and Training Center, School of Social Work, 2School of Social Work, 3School of Education, University of Michigan, Ann Arbor, MI, USAObjective: Family involvement and several characteristics of parenting have been suggested to be protective factors for adolescent substance use. Some parenting behaviors may have stronger relationships with adolescent behavior while others may have associations with undesirable behavior among youth. Although it is generally acknowledged that families play an important role in the lives of Chilean adolescents, scant research exists on how different family and parenting factors may be associated with marijuana use and related problems in this population which has one of the highest rates of drug use in Latin America.Methods: Using logistic regression and negative binomial regression, we examined whether a large number of family and parenting variables were associated with the possibility of Chilean adolescents ever using marijuana, and with marijuana-related problems. Analyses controlled for a number of demographic and peer-related variables.Results: Controlling for other parenting and family variables, adolescent reports of parental marijuana use showed a significant and positive association with adolescent marijuana use. The multivariate models also revealed that harsh parenting by fathers was the only family variable associated with the number of marijuana-related problems youth experienced. Conclusion: Of all the family and parenting variables studied, perceptions of parental use of marijuana and harsh parenting by fathers were predictors for marijuana use, and the experience of marijuana-related problems. Prevention interventions need to continue emphasizing the critical socializing role that parental behavior plays in their children's development and potential use of marijuana.Keywords: parenting, families, adolescent

  11. Lycaenid caterpillars (Lepidoptera, Lycaenidae eating flowers of Dalea pennellii var. chilensis (Fabaceae in the northern Chilean Andes

    Directory of Open Access Journals (Sweden)

    Héctor A. Vargas

    2014-09-01

    Full Text Available Lycaenid caterpillars (Lepidoptera, Lycaenidae eating flowers of Dalea pennellii var. chilensis (Fabaceae in the northern Chilean Andes. The shrub Dalea pennellii var. chilensis (Fabaceae is reported for the first time as a host plant for three Neotropical Polyommatini (Lepidoptera, Lycaenidae, Polyommatinae: Hemiargus ramon (Dognin, 1887, Leptotes trigemmatus (Butler, 1881 and Nabokovia faga (Dognin, 1895, based on two collections performed in the western slopes of the northern Chilean Andes in two consecutive summers. The relative abundance was always above 90% for N. faga while it was always less than 5% for H. ramon and L. trigemmatus. Furthermore, N. faga was not found on inflorescences of other native Fabaceae examined in the study site. This pattern suggests a close relationship between N. faga and D. pennellii var. chilensis, at least at a local scale.

  12. Maternal Stress and Family Constitution: Comparative Study on Chilean, Single-Mother and Nuclear, Low-Income Families

    OpenAIRE

    Olhaberry, Marcia; Pontificia Universidad Católica de Chile; Farkas,Chamarrita

    2012-01-01

    Studies on maternal stress during child raising have taken into consideration contextual variables to explain it. The socioeconomic level, as well as the family constitution have been relevant variables, associating singleparenting in low-income families with greater levels of maternal stress. Maternal stress levels in Chilean, nuclear and single-mother low income families are studied, considering stress in various dimensions, associated to the maternal role, to the mother-child interactio...

  13. Solar PV-CSP Hybridisation for Baseload Generation : A Techno-economic Analysis for the Chilean Market

    OpenAIRE

    Larchet, Kevin

    2015-01-01

    The development of high capacity factor solar power plants is an interesting topic, especially when considering the climate and economic conditions of a location such as the Chilean Atacama Desert. The hybridisation of solar photovoltaic (PV) and concentrating solar power (CSP) technologies for such an application is a promising collaboration. The low cost of PV and dispatchability of CSP, integrated with thermal energy storage (TES), has the promise of delivering baseload electricity at a lo...

  14. [Rotavirus Vaccine. Statement of the Consultive Committee of Immunizations on behalf of The Chilean Infectious Diseases Society. March 2006].

    Science.gov (United States)

    Muñoz M, Alma; Abarca V, Katia; Luchsinger F, Vivian; Valenzuela B, M Teresa; Jiménez de la J, Jorge

    2006-06-01

    The article briefly reviews the epidemiology of rotavirus infection and the scientific information of the rotavirus vaccines: Rotashield, withdrawn from the market due to its association with intussusception, Rotateq currently in an advanced phase of development, and Rotarix, recently licensed in Chile. Considering the available information, the Consultive Committee of Immunizations of the Chilean Society of Infectious Diseases, summarizes its conclusions and makes recommendations for infants vaccination against rotavirus in our country.

  15. 2 × 2 achievement goals profilEs in chilean CompetiTIve and recreational athletes: a first look

    Directory of Open Access Journals (Sweden)

    Lochbaum Marc R.

    2016-01-01

    Full Text Available Purpose: was to examine the 2 × 2 achievement goal profiles of Chilean young adults regularly participating in competitive and recreational sport. Materials: participants were 108 female and 132 males who were recruited from the Valparaiso and Viña del Mar areas of Chile. Participants completed a valid and reliable measure of the 2 × 2 achievement goals referenced to sport participation. Results: indicated that the entire sample significantly ( p < .05 and very meaningfully (Hedges’ g range 1.13 - 2.91 endorsed the mastery-approach goal more so than the other three achievement goals. Male participants significantly ( p < .05 endorsed both approach goals and the mastery goal contrast more so than the female participants. These differences approached medium in meaningfulness (Hedges’ g range .40 - .46. Significant differences did not exist between competitive and recreational athletes on any of the achievement goals or goal contrasts. Confirming the lack of significant differences were the computed small to negligible in magnitude effect sizes. Conclusions: the present data were a first look into profiling sport participants on the 2 × 2 achievement goals in Chile. Given this sample of Chilean participants endorsed the performance goals far less than found in the sport psychology 2 × 2 achievement goal literature, more research is needed before these results are generalized to Chilean sport participants. Future research must also examine the relationships of antecedents and consequences to the 2 × 2 achievement goals to advance sport psychology in Chile.

  16. Impact of Mano a Mano-Mujer, an HIV prevention intervention, on depressive symptoms among Chilean women.

    Science.gov (United States)

    Cianelli, R; Lara, L; Villegas, N; Bernales, M; Ferrer, L; Kaelber, L; Peragallo, N

    2013-04-01

    Worldwide, and in Chile, the number of women living with HIV is increasing. Depression is considered a factor that interferes with HIV prevention. Depression may reach 41% among low-income Chilean women. Depressed people are less willing to participate in behaviours that protect them against HIV. The aim of this study is to analyze the impact of Mano a Mano-Mujer (MM-M), and HIV prevention intervention, on depressive symptoms among Chilean women. A quasi-experimental design was used for this study. The research was conducted in Santiago, Chile; a total of 400 women participated in the study (intervention group, n=182; control group, n=218). The intervention was guided by the social-cognitive model and the primary health care model. The intervention consists of six 2-h sessions delivered in small groups. Sessions covered: HIV prevention, depression, partner's communication, and substance abuse. Face-to-face interviews were conducted at baseline and at 3-month follow-up. Chilean women who participated in MM-M significantly decreased, at 3 months follow up, their reported depressive symptoms. MM-M provided significant benefits for women's depression symptoms. In this study nurses participated as leaders for the screening of depressive symptoms and as facilitators of community interventions.

  17. Chilean version of the INECO Frontal Screening (IFS-Ch: Psychometric properties and diagnostic accuracy

    Directory of Open Access Journals (Sweden)

    Josefina Ihnen

    Full Text Available ABSTRACT Objective: This study sought to analyze the psychometric properties and diagnostic accuracy of the Chilean version of the INECO Frontal Screening (IFS-Ch in a sample of dementia patients and control Methods: After adapting the instrument to the Chilean context and obtaining content validity evidence through expert consultation, the IFS-Ch was administered to 31 dementia patients and 30 control subjects together with other executive assessments (Frontal Assessment Battery [FAB], Modified version of the Wisconsin Card Sorting Test [MCST], phonemic verbal fluencies [letters A and P] and semantic verbal fluency [animals] and global cognitive efficiency tests (Mini mental State Examination [MMSE] and Addenbrooke's Cognitive Examination-Revised [ACE-R]. Caregivers of dementia patients and proxies of control subjects were interviewed with instruments measuring dysexecutive symptoms (Dysexecutive Questionnaire [DEX], dementia severity (Clinical Dementia Rating Scale [CDR] and functional status in activities of daily living (Activities of Daily Living Scale [IADL] and Technology-Activities of Daily Living Questionnaire [T-ADLQ]. Convergent and discriminant validity, internal consistency reliability, cut-off points, sensitivity and specificity for the IFS-Ch were estimated. Results: Evidence of content validity was obtained. Evidence of convergent validity was also found showing significant correlations (p<0.05 between the IFS-Ch and the other instruments measuring: executive functions (FAB, r=0.935; categories achieved in the MCST, r=0.791; perseverative errors in the MCST, r= -0.617; animal verbal fluency, r=0.728; A verbal fluency, r=0.681; and P verbal fluency, r=0.783, dysexecutive symptoms in daily living (DEX, r= -0.494, dementia severity (CDR, r= -0.75 and functional status in activities of daily living (T-ADLQ, r= -0.745; IADL, r=0.717. Regarding reliability, a Cronbach's alpha coefficient of 0.905 was obtained. For diagnostic accuracy

  18. February 27, 2010 Chilean Tsunami in Pacific and its Arrival to North East Asia

    Science.gov (United States)

    Zaytsev, Andrey; Pelinovsky, EfiM.; Yalciner, Ahmet C.; Ozer, Ceren; Chernov, Anton; Kostenko, Irina; Shevchenko, Georgy

    2010-05-01

    The outskirts of the fault plane broken by the strong earthquake on February 27, 2010 in Chili with a magnitude 8.8 at the 35km depth of 35.909°S, 72.733°W coordinates generated a moderate size tsunami. The initial amplitude of the tsunami source is not so high because of the major area of the plane was at land. The tsunami waves propagated far distances in South and North directions to East Asia and Wet America coasts. The waves are also recorded by several gauges in Pacific during its propagation and arrival to coastal areas. The recorded and observed amplitudes of tsunami waves are important for the potential effects with the threatening amplitudes. The event also showed that a moderate size tsunami can be effective even if it propagates far distances in any ocean or a marginal sea. The far east coasts of Russia at North East Asia (Sakhalin, Kuriles, Kamchatka) are one of the important source (i.e. November 15, 2006, Kuril Island Tsunami) and target (i.e. February, 27, 2010 Chilean tsunami) areas of the Pacific tsunamis. Many efforts have been spent for establishment of the monitoring system and assessment of tsunamis and development of the mitigation strategies against tsunamis and other hazards in the region. Development of the computer technologies provided the advances in data collection, transfer, and processing. Furthermore it also contributed new developments in computational tools and made the computer modeling to be an efficient tool in tsunami warning systems. In this study the tsunami numerical model NAMI DANCE Nested version is used. NAMI-DANCE solves Nonlinear form of Long Wave (Shallow water) equations (with or without dispersion) using finite difference model in nested grid domains from the source to target areas in multiprocessor hardware environment. It is applied to 2010 Chilean tsunami and its propagation and coastal behavior at far distances near Sakhalin, Kuril and Kamchatka coasts. The main tide gauge records used in this study are from

  19. Slow-slip events hiding in low-coupled areas of the Chilean subduction zone ?

    Science.gov (United States)

    Métois, Marianne; Vigny, Christophe; Socquet, Anne

    2014-05-01

    The recent expansion of dense GPS networks over plate boundaries allows for remarkably precise mapping of interseismic coupling along active faults. The coupling coefficient is linked to the ratio between slipping velocity on the fault during the interseismic period and the long-term plates velocity. The coupling coefficient is a phenomenological parameter representing the kinematic state of the system, but a physical quantitative description of that parameter is needed for seismic hazard assessment. In other words, which amount of coupling or decoupling is needed to allow for earthquake to nucleate, propagate or stop, would be of great help to build rupture scenarios. Here, we investigate the link between coupling and present-day seismicity over the Chilean subduction zone. We combine recent GPS data acquired over the 2000 km long margin (38-18°S) with older data acquired at continental scale to get a nearly continuous picture of the interseismic coupling variations on the interface. We identify at least six zones where the coupling decreases dramatically, dividing individual highly coupled segments. These low-coupled areas often behave as barriers to past megathrust ruptures and experience high rates of seismicity during the interseismic period, including swarm-like sequences. We suggest that in these regions, the subduction interface is a patchwork of small velocity-weakening patches surrounded by velocity-strengthening material that would slide during the interseimic period. This relationship is consistent with observations over other subduction zones, notably in Ecuador where shallow aseismic transients have been observed near low coupled swarm-prone areas (Vallée et al. 2013). However for now, no transient event has been recorded yet all over the Chilean megathrust, preventing clear identification of creeping portions of the interface. Here, we test the hypothesis supposing that, similar to the Ecuador 2010 swarm episode, significant slow-slip events

  20. Adaptation of the spiders to the environment: the case of some Chilean species

    Science.gov (United States)

    Canals, Mauricio; Veloso, Claudio; Solís, Rigoberto

    2015-01-01

    Spiders are small arthropods that have colonized terrestrial environments. These impose three main problems: (i) terrestrial habitats have large fluctuations in temperature and humidity; (ii) the internal concentration of water is higher than the external environment in spiders, which exposes them continually to water loss; and (iii) their small body size determines a large surface/volume ratio, affecting energy exchange and influencing the life strategy. In this review we focus on body design, energetic, thermal selection, and water balance characteristics of some spider species present in Chile and correlate our results with ecological and behavioral information. Preferred temperatures and critical temperatures of Chilean spiders vary among species and individuals and may be adjusted by phenotypic plasticity. For example in the mygalomorph high-altitude spider Paraphysa parvula the preferred temperature is similar to that of the lowland spider Grammostola rosea; but while P. parvula shows phenotypic plasticity, G. rosea does not. The araneomorph spiders Loxosceles laeta and Scytodes globula have greater daily variations in preferred temperatures at twilight and during the night, which are set to the nocturnal activity rhythms of these species. They also present acclimation of the minimum critical temperatures. Dysdera crocata has a low preferred temperature adjusted to its favorite prey, the woodlouse. Spider metabolic rate is low compared to other arthropods, which may be associated with its sit and wait predatory strategy particularly in primitive hunter and weavers. In mygalomorph spiders the respiratory system is highly optimized with high oxygen conductance, for example G. rosea needs only a difference of 0.12–0.16 kPa in the oxygen partial pressure across the air-hemolymph barrier to satisfy its resting oxygen consumption demands. Water loss is a significant stress for spiders. Paraphysa parvula shows an evaporative water loss 10 times more than usual

  1. Microbial Terroir in Chilean Valleys: Diversity of Non-conventional Yeast

    Science.gov (United States)

    Jara, Carla; Laurie, V. Felipe; Mas, Albert; Romero, Jaime

    2016-01-01

    In this study, the presence of non-conventional yeast associated with vineyards located between latitudes 30°S and 36°S was examined, including the valleys of Limarí, Casablanca, Maipo, Colchagua, Maule, and Itata. The microbial fingerprinting in each valley was examined based on the specific quantification of yeast of enological interest. Grape–berries were sampled to evaluate the presence and load of non-conventional yeast with enological potential, such as Metschnikowia, Hanseniaspora, Torulaspora, Debaryomyces, Meyerozyma, and Rhodotorula. These yeasts were present in all vineyards studied but with varying loads depending on the valley sampled. No identical fingerprints were observed; however, similarities and differences could be observed among the microbial profiles of each valley. A co-variation in the loads of Metschnikowia and Hanseniaspora with latitude was observed, showing high loads in the Casablanca and Itata valleys, which was coincident with the higher relative humidity or rainfall of those areas. Non-conventional yeasts were also isolated and identified after sequencing molecular markers. Potentially good aromatic properties were also screened among the isolates, resulting in the selection of mostly Metschnikowia and Hanseniaspora isolates. Finally, our results suggest that microbial terroir might be affected by climatic conditions such as relative humidity and rainfall, especially impacting the load of non-conventional yeast. In this study, the microbial fingerprint for yeast in Chilean vineyards is reported for the first time revealing an opportunity to study the contribution of this assembly of microorganisms to the final product. PMID:27242693

  2. Understanding Attitudes and Pro-Environmental Behaviors in a Chilean Community

    Directory of Open Access Journals (Sweden)

    Nicolás C. Bronfman

    2015-10-01

    Full Text Available Environmental protection and restoration are some of the major challenges faced by our society. To address this problem, it is fundamental to understand pro-environmental behaviors in the population, as well as the factors that determine them. There are, however, very few studies conducted in Latin America that are focused in understanding the environmental behavior of its citizens. The main goal of this research was to study the environmental behaviors of a Chilean community and identify the factors that determine them. To that end, a diverse set of environmental behaviors (power and water conservation, environmentally-aware consumer behavior, biodiversity protection, rational automobile use and ecological waste management and sociodemographic and attitudinal factors—based on the VBN model—were evaluated. Survey data was obtained from a statistically representative sample (N = 1537 in Santiago, Chile. Our results suggest that several participants displayed tendencies that favor more responsible environmental behaviors, with high environmental concern, and demonstrating their ample awareness of the consequences of failing to protect the environment. Nevertheless, the highest average scores of environmental behavior were related to low cost behaviors and those that imposed the fewest behavioral restrictions. In global terms, we concluded that the youngest subjects in the lowest socioeconomic group obtained the lowest scores across the pro-environmental behavior spectrum.

  3. Aneurismal subarachnoid hemorrhage in a Chilean population, with emphasis on risk factors

    Directory of Open Access Journals (Sweden)

    A Cifuentes Lucía

    2011-10-01

    Full Text Available Abstract Background Subarachnoid Hemorrhage (SAH is caused principally by the rupture of intracranial aneurisms. Important risk factors have been described such as age, sex, hypertension (HT and season of the year, among others. The objective is to investigate the demographic characteristics and possible risk factors in a population of Chilean patients. Methods This retrospective study was based on the analysis of 244 clinical records of patients diagnosed with aneurismal SAH who were discharged from the Instituto de Neurocirugía ASENJO in Santiago, Chile. Results The mean age of patients was 49.85 years and the male:female ratio was 1:2.7. The signs and symptoms were not different between sexes; cephalea (85.7% was predominant, followed by loss of consciousness, vomiting/nausea and meningeal signs. Risk factors included sex, age and HT. Concordant with other reports, the incidence of SAH was greatest in spring. Conclusions The demographic characteristics and risk factors observed in patients with aneurismal SAH treated in ASENJO were comparable to those of other populations. We were not able to conclude that tobacco and alcohol consumption were risk factors for this population.

  4. Cold tolerance evaluation in Chilean rice genotypes at the germination stage

    Directory of Open Access Journals (Sweden)

    Gabriel Donoso Ñanculao

    2013-03-01

    Full Text Available Low temperature is the most important abiotic stress affecting rice (Oryza sativa L. yield in Chile. Rice in Chile is usually planted when the minimum air temperatures are below 12 °C. This temperature is lower than the optimum needed for normal rice germination. Therefore, the aim of this study was to evaluate cold tolerance in 20 experimental lines from the Rice Breeding Program of the Instituto de Investigaciones Agropecuarias (INIA, Chile, at the germination stage. Coleoptile length reduction (CRED, coleoptile length after cold treatment (CLEN, coleoptile length recovery (CREC, and coleoptile regrowth (CREG were evaluated at 13 °C for 4 d using 'Diamante-INIA' as the cold-tolerant control. To find genotypes with cold tolerance (low CRED value and high CLEN, CREC, and CREG values, genotypes were ranked, a biplot of principal components, and cluster analysis were performed. No differences were found among genotypes in the ranking based on CREC value so this trait was not considered. Analysis showed that only three experimental lines had cold tolerance similar to that of 'Diamante-INIA'; all other experimental lines exhibited intermediate to low cold tolerance. These results showed low cold tolerance of some Chilean genotypes at the germination stage, thus confirming the need to evaluate the rest of the germplasm from the Rice Breeding Program.

  5. Dense plasmas research in the Chilean Nuclear Energy Commission: past, present and future

    Energy Technology Data Exchange (ETDEWEB)

    Soto, Leopoldo; Silva, Patricio; Moreno, Jose; Zambra, Marcelo; Sylvester, Gustavo; Esaulov, Andrey; Altamirano, Luis [Comision Chilena de Energia Nuclear (CCHEN), Santiago (Chile)]. E-mail: lsoto@cchen.cl

    2002-03-01

    A review of the dense transient plasmas researches, developed in the Chilean Nuclear Energy Commission, is presented. A brief summary of the researches done in collaboration with the Pontificia Universidad Catolica de Chile, between 1993 to 1997, is shown. In addition, the program 'Plasma Physics in Small Devices', developed at the Comision Chilena de Energia Nuclear since 1999 is delineated. The diagnostics development and results obtained during three experiments using small pinch devices are shown: a capillary discharge; a Z pinch driven by a small generator; and a low energy plasma focus. The experiments were complemented by magnetohydrodynamics numerical calculations, in order to assist the design and physical interpretation of the experimental data. The diagnostics techniques used in these experiments include current and voltage monitors, multi pinhole camera, plasma image using a ICCD camera gated from 3 to 20 ns, holographic interferometry, and vacuum ultraviolet spectroscopy. Recently, the pulse power generator SPEED 2, a medium energy and large current device (187 kJ, 4 MA, 300 kV, 400 ns, dI/dt{approx}10{sup 13} A/s), has been transferred from the Duesseldorf University to the Comision Chilena de Energia Nuclear. Future experiments, and the perspectives of using this device, are also discussed. (author)

  6. Microbial life in a fjord: metagenomic analysis of a microbial mat in Chilean patagonia.

    Directory of Open Access Journals (Sweden)

    Juan A Ugalde

    Full Text Available The current study describes the taxonomic and functional composition of metagenomic sequences obtained from a filamentous microbial mat isolated from the Comau fjord, located in the northernmost part of the Chilean Patagonia. The taxonomic composition of the microbial community showed a high proportion of members of the Gammaproteobacteria, including a high number of sequences that were recruited to the genomes of Moritella marina MP-1 and Colwelliapsycherythraea 34H, suggesting the presence of populations related to these two psychrophilic bacterial species. Functional analysis of the community indicated a high proportion of genes coding for the transport and metabolism of amino acids, as well as in energy production. Among the energy production functions, we found protein-coding genes for sulfate and nitrate reduction, both processes associated with Gammaproteobacteria-related sequences. This report provides the first examination of the taxonomic composition and genetic diversity associated with these conspicuous microbial mat communities and provides a framework for future microbial studies in the Comau fjord.

  7. Microbial Life in a Fjord: Metagenomic Analysis of a Microbial Mat in Chilean Patagonia

    Science.gov (United States)

    Ugalde, Juan A.; Gallardo, Maria J.; Belmar, Camila; Muñoz, Práxedes; Ruiz-Tagle, Nathaly; Ferrada-Fuentes, Sandra; Espinoza, Carola; Allen, Eric E.; Gallardo, Victor A.

    2013-01-01

    The current study describes the taxonomic and functional composition of metagenomic sequences obtained from a filamentous microbial mat isolated from the Comau fjord, located in the northernmost part of the Chilean Patagonia. The taxonomic composition of the microbial community showed a high proportion of members of the Gammaproteobacteria, including a high number of sequences that were recruited to the genomes of Moritella marina MP-1 and Colwelliapsycherythraea 34H, suggesting the presence of populations related to these two psychrophilic bacterial species. Functional analysis of the community indicated a high proportion of genes coding for the transport and metabolism of amino acids, as well as in energy production. Among the energy production functions, we found protein-coding genes for sulfate and nitrate reduction, both processes associated with Gammaproteobacteria-related sequences. This report provides the first examination of the taxonomic composition and genetic diversity associated with these conspicuous microbial mat communities and provides a framework for future microbial studies in the Comau fjord. PMID:24015199

  8. Lagrangian flow measurements and observations of the 2015 Chilean tsunami in Ventura, CA

    Science.gov (United States)

    Kalligeris, Nikos; Skanavis, Vassilios; Tavakkol, Sasan; Ayca, Aykut; Safty, Hoda El; Lynett, Patrick; Synolakis, Costas

    2016-05-01

    Tsunami-induced coastal currents are spectacular examples of nonlinear and chaotic phenomena. Due to their long periods, tsunamis transport substantial energy into coastal waters, and as this energy interacts with the ubiquitous irregularity of bathymetry, shear and turbulent features appear. The oscillatory character of a tsunami wave train leads to flow reversals, which in principle can spawn persistent turbulent coherent structures (e.g., large vortices or "whirlpools") that can dominate damage and transport potential. However, no quantitative measurements exist to provide physical insight into this kind of turbulent variability, and no motion recordings are available to help elucidate how these vortical structures evolve and terminate. We report our measurements of currents in Ventura Harbor, California, generated by the 2015 Chilean M8.3 earthquake. We measured surface velocities using GPS drifters and image sequences of surface tracers deployed at a channel bifurcation, as the event unfolded. From the maps of the flow field, we find that a tsunami with a near-shore amplitude of 30 cm at 6 m depth produced unexpectedly large currents up to 1.5 m/s, which is a fourfold increase over what simple linear scaling would suggest. Coherent turbulent structures appear throughout the event, across a wide range of scales, often generating the greatest local currents.

  9. Becoming Reflective and Inquiring Teachers: Collaborative Action Research for In-service Chilean Teachers

    Directory of Open Access Journals (Sweden)

    Martine Pellerin

    2015-08-01

    Full Text Available This article discusses the outcomes of a case study that engaged Chilean in-service teachers in systematic action research (AR as a means of improving their pedagogical practice and effecting changes in their educational context. The study involved six in-service teachers from a region of Chile and two university researchers. The findings show that knowledge of systematic AR provided the teachers with the necessary means to engage in a critical reflection and inquiry process regarding their own practice. The teacher participants also perceived the self-reflective spiral of reflection and action to be crucial in establishing new habits of inquiry and reflection about their own pedagogical actions. The findings support earlier studies (e.g., Price & Valli, 2005; Steven & Kitchen, 2005, 2011 concerning the necessity of including knowledge of systematic AR in teacher preparation programs in order to foster strong habits of inquiry and reflection among preservice teachers. Finally, the study suggests that participation in a systematic reflection and inquiry process contributes to empowering in-service teachers to become agents of pedagogical change through their own actions.

  10. [Antecedents for the teaching of nutrition in the Chilean school system].

    Science.gov (United States)

    Olivares, S; Valiente, S

    1983-01-01

    This article reports that as part of the research into the Chilean population's understanding, habits, and beliefs about food and analysis was made of food and nutrition knowledge in a sample of 966 elementary and secondary school teachers and 1,050 freshmen students of different schools of the University of Chile in 1979, located in three cities in the north, center, and south of the country. Their knowledge of food and nutrition was tested using a standardized questionnaire. The results of the test were graded according to the percentage of correct answers in six categories. Only 30.6 per cent of the teachers and 17 per cent of the students scored above the acceptable minimum of 50 per cent. It is evident that food and nutrition knowledge of elementary and secondary school teachers and of freshmen students at the University of Chile is insufficient. The relationship between the knowledge variable and other variables in the study shows that this lack is mainly related to environmental factors, independent of formal education. The article offers specific suggestions to be incorporated in the nutrition education curriculum in Chile.

  11. Stress and health-promoting attributes in Australian, New Zealand, and Chilean dental students.

    Science.gov (United States)

    Gambetta-Tessini, Karla; Mariño, Rodrigo; Morgan, Mike; Evans, Wendell; Anderson, Vivienne

    2013-06-01

    This study investigated stress levels and health-promoting attributes (sense of coherence, social support, and coping strategies) in dental students using a Salutogenic approach. All dental students (n=2,049) from two Australian universities, two Chilean universities, and one New Zealand university were invited to participate in this cross-sectional study. The questionnaire covered sociodemographic and career choice questions, Perceived Stress Scale, Orientation to Life Questionnaire, Multidimensional Scale of Perceived Social Support, and Brief COPE scale. A total of 897 students participated, for a 44 percent response rate. Students' mean age was 22.1 (SD=2.7). The majority were females (59.3 percent). Students reported moderate stress, moderate sense of coherence (SOC), and high levels of social support. Significant differences in the SOC scores by country were reported. The linear regression model for stress explained 44 percent of the variance, in which SOC and social support are negatively associated with stress and the use of maladaptive coping strategies positively predicts high stress. These findings confirm that health-promoting attributes were negatively related to stress in these dental students. This is an initial approach to guide academics in the creation of Salutogenic programs that optimize students' chances to successfully cope with stress.

  12. Recirculation of Chilean copper smelting dust with high impurities contents to the smelting process

    Energy Technology Data Exchange (ETDEWEB)

    Sano, H.; Fujisawa, T. [Nagoya Univ., Nagoya (Japan). EcoTopia Science Inst.; Montenegro, V. [Nagoya Univ., Nagoya (Japan). Dept. of Materials Science and Engineering

    2007-07-01

    Dust generated during the copper smelting process is generally stabilized using hydrometallurgical methods as it contains high concentrations of arsenic. In this laboratory study, dust was recirculated during the smelting process in order to recover more copper and decrease dust emissions while recovering more copper. The behaviour of impurities and their influence on matte quality was also investigated. Industrial matte, flue dust, slag, and copper concentrates from a Chilean smelter were used as test materials. Dust recirculation tests were conducted in a simulated electric furnace. Off-gases were collected in a reaction tube, and the condensed volatile matter, slag, and matte phases were analyzed for their elemental content by inductively coupled plasma atomic emission spectrometry. The distribution of arsenic (As); antimony (Sb), bismuth (Bi), lead (Pb), and zinc (Zn) were investigated by varying the amounts of dust recirculating to the smelting stage with 21 per cent of the oxygen. Results showed that distributions of all analyzed elements increased with recirculation. It was concluded that copper can be recovered using the dust recirculation technique. However, impurities may limit the efficacy of the dust recirculation process. 6 refs., 3 tabs., 4 figs.

  13. Postnatal Growth Patterns in a Chilean Cohort: The Role of SES and Family Environment.

    Science.gov (United States)

    Kang Sim, D E; Cappiello, M; Castillo, M; Lozoff, B; Martinez, S; Blanco, E; Gahagan, S

    2012-01-01

    Objective. This study examined how family environmental characteristics served as mediators in the relationship between socioeconomic conditions and infant growth in a cohort of Chilean infants. Methods. We studied 999 infants, born between 1991 and 1996, from a longitudinal cohort which began as an iron deficiency anemia preventive trial. SES (Graffar Index), the Life Experiences Survey, and the Home Observation for Measurement of the Environment (HOME) were assessed in infancy. Using path analysis, we assessed the relationships between the social factors, home environment, and infant growth. Results. During the first year, weight and length gain averaged 540 grams/month and 6.5 cm/month, respectively. In the path analysis model for weight gain, higher SES and a better physical environment were positively related to higher maternal warmth, which in turn was associated with higher average weight gain. Higher SES was directly related to higher average length gain. Conclusions. In our cohort, a direct relationship between SES and length gain developed during infancy. Higher SES was indirectly related to infant weight gain through the home environment and maternal warmth. As the fastest growing infants are at risk for later obesity, new strategies are needed to encourage optimal rather than maximal growth.

  14. The absence of stewardship in the Chilean health authority after the 2004 health reform

    Directory of Open Access Journals (Sweden)

    Tania Herrera

    2014-11-01

    Full Text Available Stewardship is the most important political function of a health system. It is a government responsibility carried out by the health authority. Among other dimensions, it is also a meta-function that includes conduction and regulation. The Health Authority and Management Act, which came about from the health reform of 2004, separated the functions of service provision and stewardship with the aim of strengthening the role of the health authority. However, the current structure of the health system contains overlapping functions between the different entities that leads to lack of coordination and inconsistencies, and a greater weight on individual health actions at the expense of collective ones. Consequently, a properly funded national health strategy to improve the health of the population is missing. Additionally, the components of citizen participation and governance are weak. It is necessary, therefore, to revisit the Chilean health structure in order to develop one that truly enables the exercise of the health authority’s stewardship role

  15. Energy ratio analysis of genetically-optimized potato for ethanol production in the Chilean market

    Energy Technology Data Exchange (ETDEWEB)

    Contreras, A.; Diaz, G.; Gallardo, L.; Loaiza, R.

    2010-07-01

    The continuous increase in energy demand, the high cost of imported oil, and the growing concerns about climate change have sparked a number of initiatives from governments around the world to increase production of energy from renewable sources. Along these lines, the Chilean government is analyzing the introduction of a law to set a reference value of 5% of bio fuel production to be placed on the market by 2013. The analysis of different options to meet this new regulatory measure needs to consider different alternatives such as bio diesel and bio ethanol from crops or lignocellulose biomass. This paper analyzes the energy ratio of some of the most common crops grown in Chile that can be utilized for ethanol production. Using a methodology adapted to local conditions of agriculture and transportation, the results indicate that a potato cultivar specially bred for high yield, high starch and dry matter content can obtain a positive net energy balance with an energy ratio of 1.8. The results also show yields near 60 tons ha{sup -}1 which translate to approximately 9,000 L ha{sup -}1 of ethanol making the genetically optimized cultivar of potato a suitable local source for ethanol production. (Author) 48 refs.

  16. [Prevalence of deficiency and dietary intake of iron, zinc and copper in Chilean childbearing age women].

    Science.gov (United States)

    Mujica-Coopman, María F; Borja, Angélica; Pizarro, Fernando; Olivares, Manuel

    2014-03-01

    The aim of the present study was to evaluate anemia, the biochemical status and dietary adequacy of iron (Fe), zinc (Zn) and copper (Cu), in Chilean childbearing age women. We studied a convenience sample of 86 women aged 18 to 48 years from Santiago, Chile. We determined anemia and the micronutrient status through hemoglobin (Hb) mean corpuscular volume, transferrin saturation, zinc protoporphyrin, serum ferritin (SF), serum Zn and Cu. Dietary adequacy was estimated using a food frequency questionnaire. Of all women, 4.7% had Fe deficiency (ID) anemia, 21 % ID without anemia, 26 % depleted Fe stores and 48.3% normal Fe status. Obese women had higher SF (p<0.01) compared with those classified as having normal BMI. Also, showed higher Hb (p<0.05) concentrations compared with overweight and normal weight women. Partidipants showed 3.5 % and 2.3 % of Zn and Cu deficiency, respectively. Also, 95 %, 94 % and 99 % had adequate intake of Fe, Zn and Cu respectively, according to EAR cut points. There were no significant differences in micronutrients intake across different nutritional status. There was a low prevalence of anemia, Fe, Zn and Cu deficiency. A high percentage of women reached micronutrient adequacy. However, 47% of women had ID without anemia and Fe depleted stores.

  17. The Impact of a Carbon Tax on the Chilean Electricity Generation Sector

    Directory of Open Access Journals (Sweden)

    Carlos Benavides

    2015-04-01

    Full Text Available This paper aims to analyse the economy-wide implications of a carbon tax applied on the Chilean electricity generation sector. In order to analyse the macroeconomic impacts, both an energy sectorial model and a Dynamic Stochastic General Equilibrium model have been used. During the year 2014 a carbon tax of 5 US$/tCO2e was approved in Chile. This tax and its increases (10, 20, 30, 40 and 50 US$/tCO2e are evaluated in this article. The results show that the effectiveness of this policy depends on some variables which are not controlled by policy makers, for example, non-conventional renewable energy investment cost projections, natural gas prices, and the feasibility of exploiting hydroelectric resources. For a carbon tax of 20 US$/tCO2e, the average annual emission reduction would be between 1.1 and 9.1 million tCO2e. However, the price of the electricity would increase between 8.3 and 9.6 US$/MWh. This price shock would decrease the annual GDP growth rate by a maximum amount of 0.13%. This article compares this energy policy with others such as the introduction of non-conventional renewable energy sources and a sectorial cap. The results show that the same global greenhouse gas (GHG emission reduction can be obtained with these policies, but the impact on the electricity price and GDP are lower than that of the carbon tax.

  18. Unique clusters of Archaea in Salar de Huasco, an athalassohaline evaporitic basin of the Chilean Altiplano.

    Science.gov (United States)

    Dorador, Cristina; Vila, Irma; Remonsellez, Francisco; Imhoff, Johannes F; Witzel, Karl-Paul

    2010-08-01

    Analyses of clone libraries from water and sediments of different sites from Salar de Huasco, a high-altitude athalassohaline wetland in the Chilean Altiplano, revealed the presence of five unique clusters of uncultured Archaea that have not been previously reported or specifically assigned. These sequences were distantly related (83-96% sequence identity) to a limited number of other clone sequences and revealed no identity to cultured Archaea. The abundance of Archaea and Bacteria was estimated using qPCR and community composition was examined through the construction of clone libraries of archaeal 16S rRNA gene. Archaea were found to be dominant over Bacteria in sediments from two saline sites (sites H4: 6.31 x 10(4) and site H6: 1.37 x 10(4) microS cm(-1)) and in one of the water samples (freshwater from site H0: 607 muS cm(-1)). Euryarchaeotal sequences were more abundant than crenarchaeotal sequences. Many of the clone sequences (52%) were similar to uncultured archaeal groups found in marine ecosystems having identity values between 99% and 97%. A major fraction of the sequences (40%) were members of Methanobacteria, while others were included in the Marine Benthic Groups B and D, the Miscellaneous Crenarchaeotic Group, the Terrestrial Miscellaneous Euryarchaeotal Group, Marine Group I and Halobacteria. The presence of uncultured archaeal groups in Salar de Huasco extends their known distribution in inland waters, providing new clues about their possible function in the environment.

  19. The reliability of morphometric discriminant functions in determining the sex of Chilean flamingos Phoenicopterus chilensis

    Institute of Scientific and Technical Information of China (English)

    Diego MONTALTI; Maricel GRA(N)A GRILLI; René E.MARAGLIANO; Guillermo CASSINI

    2012-01-01

    Monomorphic birds cannot be sexed visually and discriminant functions on the basis of external morphological variations are frequently used.Our objective was to evaluate the reliability of sex classification functions created from structural measurements of Chilean flamingos Phoenicopterus chilensis museum skins for the gender assignment of live birds.Five measurements were used to develop four discriminant functions:culmen,bill height and width,tarsus length and middle toe claw.The functions were tested on a sample of live flamingos from a zoo.The best classification for museum flamingos was given by a function using tarsus length,bill width and middle toe claw (97%).However,this function did not give the best classification for the zoo-based flamingos (81%) which had the best sex assignment by a function including measurements of tarsus,culmen and bill height and width (85%).This shows that a function giving good results in the sample from which it originated may not be as good when applied to another group of animals.Our study emphasizes the need for assessing the accuracy of a function by testing it with other methods to ensure its suitability when being applied.

  20. Impact of reproductive laws on maternal mortality: the chilean natural experiment.

    Science.gov (United States)

    Koch, Elard

    2013-05-01

    Improving maternal health and decreasing morbidity and mortality due to induced abortion are key endeavors in developing countries. One of the most controversial subjects surrounding interventions to improve maternal health is the effect of abortion laws. Chile offers a natural laboratory to perform an investigation on the determinants influencing maternal health in a large parallel time-series of maternal deaths, analyzing health and socioeconomic indicators, and legislative policies including abortion banning in 1989. Interestingly, abortion restriction in Chile was not associated with an increase in overall maternal mortality or with abortion deaths and total number of abortions. Contrary to the notion proposing a negative impact of restrictive abortion laws on maternal health, the abortion mortality ratio did not increase after the abortion ban in Chile. Rather, it decreased over 96 percent, from 10.8 to 0.39 per 100,000 live births. Thus, the Chilean natural experiment provides for the first time, strong evidence supporting the hypothesis that legalization of abortion is unnecessary to improve maternal health in Latin America.

  1. Extraction Techniques for Bioactive Compounds and Antioxidant Capacity Determination of Chilean Papaya (Vasconcellea pubescens Fruit

    Directory of Open Access Journals (Sweden)

    Elsa Uribe

    2015-01-01

    Full Text Available The aim of this work was to assess and compare different extraction methods by using high hydrostatic pressure (HHPE, ultrasound (UE, agitation (AE, and their combinations for the extraction of bioactive compounds of Chilean papaya. Extract antioxidant capacity was evaluated by three methods (i.e., DPPH, FRAP, and Voltammetry and phenolic compounds and vitamin C were determined by HPLC. Papaya sample extraction was performed by HHPE at 500 MPa for 10 min and UE and AE for 30 min, respectively. The combined-extractions: HHPE-UE and HHPE-AE, were carried out for 5 min and 15 min, respectively. The highest values found were total phenolic 129.1 mg GAE/100 g FW, antioxidant capacity by DPPH 20.6 mM TE/100 g FW, and voltammetry 141.0 mM TE/100 g FW for HHPE-UE method in free compound extraction. Regarding vitamin C content, its highest value was found by HHPE-UE (74 mg/100 g FW a combined extraction method. The phenolic compounds rutin and p-coumaric acid were found in all the extracts, both in free and bound forms, respectively. Besides, the combined techniques improved the extraction of bioactive compounds.

  2. Postnatal Growth Patterns in a Chilean Cohort: The Role of SES and Family Environment

    Directory of Open Access Journals (Sweden)

    D. E. Kang Sim

    2012-01-01

    Full Text Available Objective. This study examined how family environmental characteristics served as mediators in the relationship between socioeconomic conditions and infant growth in a cohort of Chilean infants. Methods. We studied 999 infants, born between 1991 and 1996, from a longitudinal cohort which began as an iron deficiency anemia preventive trial. SES (Graffar Index, the Life Experiences Survey, and the Home Observation for Measurement of the Environment (HOME were assessed in infancy. Using path analysis, we assessed the relationships between the social factors, home environment, and infant growth. Results. During the first year, weight and length gain averaged 540 grams/month and 6.5 cm/month, respectively. In the path analysis model for weight gain, higher SES and a better physical environment were positively related to higher maternal warmth, which in turn was associated with higher average weight gain. Higher SES was directly related to higher average length gain. Conclusions. In our cohort, a direct relationship between SES and length gain developed during infancy. Higher SES was indirectly related to infant weight gain through the home environment and maternal warmth. As the fastest growing infants are at risk for later obesity, new strategies are needed to encourage optimal rather than maximal growth.

  3. Evaluating a NoSQL Alternative for Chilean Virtual Observatory Services

    Science.gov (United States)

    Antognini, J.; Araya, M.; Solar, M.; Valenzuela, C.; Lira, F.

    2015-09-01

    Currently, the standards and protocols for data access in the Virtual Observatory architecture (DAL) are generally implemented with relational databases based on SQL. In particular, the Astronomical Data Query Language (ADQL), language used by IVOA to represent queries to VO services, was created to satisfy the different data access protocols, such as Simple Cone Search. ADQL is based in SQL92, and has extra functionality implemented using PgSphere. An emergent alternative to SQL are the so called NoSQL databases, which can be classified in several categories such as Column, Document, Key-Value, Graph, Object, etc.; each one recommended for different scenarios. Within their notable characteristics we can find: schema-free, easy replication support, simple API, Big Data, etc. The Chilean Virtual Observatory (ChiVO) is developing a functional prototype based on the IVOA architecture, with the following relevant factors: Performance, Scalability, Flexibility, Complexity, and Functionality. Currently, it's very difficult to compare these factors, due to a lack of alternatives. The objective of this paper is to compare NoSQL alternatives with SQL through the implementation of a Web API REST that satisfies ChiVO's needs: a SESAME-style name resolver for the data from ALMA. Therefore, we propose a test scenario by configuring a NoSQL database with data from different sources and evaluating the feasibility of creating a Simple Cone Search service and its performance. This comparison will allow to pave the way for the application of Big Data databases in the Virtual Observatory.

  4. Genome-wide analysis of genetic susceptibility to language impairment in an isolated Chilean population

    Science.gov (United States)

    Villanueva, Pia; Newbury, Dianne F; Jara, Lilian; De Barbieri, Zulema; Mirza, Ghazala; Palomino, Hernán M; Fernández, María Angélica; Cazier, Jean-Baptiste; Monaco, Anthony P; Palomino, Hernán

    2011-01-01

    Specific language impairment (SLI) is an unexpected deficit in the acquisition of language skills and affects between 5 and 8% of pre-school children. Despite its prevalence and high heritability, our understanding of the aetiology of this disorder is only emerging. In this paper, we apply genome-wide techniques to investigate an isolated Chilean population who exhibit an increased frequency of SLI. Loss of heterozygosity (LOH) mapping and parametric and non-parametric linkage analyses indicate that complex genetic factors are likely to underlie susceptibility to SLI in this population. Across all analyses performed, the most consistently implicated locus was on chromosome 7q. This locus achieved highly significant linkage under all three non-parametric models (max NPL=6.73, P=4.0 × 10−11). In addition, it yielded a HLOD of 1.24 in the recessive parametric linkage analyses and contained a segment that was homozygous in two affected individuals. Further, investigation of this region identified a two-SNP haplotype that occurs at an increased frequency in language-impaired individuals (P=0.008). We hypothesise that the linkage regions identified here, in particular that on chromosome 7, may contain variants that underlie the high prevalence of SLI observed in this isolated population and may be of relevance to other populations affected by language impairments. PMID:21248734

  5. Fe-O stable isotope pairs elucidate a high-temperature origin of Chilean iron oxide-apatite deposits

    Science.gov (United States)

    Bilenker, Laura D.; Simon, Adam C.; Reich, Martin; Lundstrom, Craig C.; Gajos, Norbert; Bindeman, Ilya; Barra, Fernando; Munizaga, Rodrigo

    2016-03-01

    Iron oxide-apatite (IOA) ore deposits occur globally and can host millions to billions of tons of Fe in addition to economic reserves of other metals such as rare earth elements, which are critical for the expected growth of technology and renewable energy resources. In this study, we pair the stable Fe and O isotope compositions of magnetite samples from several IOA deposits to constrain the source reservoir of these elements in IOAs. Since magnetite constitutes up to 90 modal% of many IOAs, identifying the source of Fe and O within the magnetite may elucidate high-temperature and/or lower-temperature processes responsible for their formation. Here, we focus on the world-class Los Colorados IOA in the Chilean iron belt (CIB), and present data for magnetite from other Fe oxide deposits in the CIB (El Laco, Mariela). We also report Fe and O isotopic values for other IOA deposits, including Mineville, New York (USA) and the type locale, Kiruna (Sweden). The ranges of Fe isotopic composition (δ56Fe, 56Fe/54Fe relative to IRMM-14) of magnetite from the Chilean deposits are: Los Colorados, δ56Fe (±2σ) = 0.08 ± 0.03‰ to 0.24 ± 0.08‰; El Laco, δ56Fe = 0.20 ± 0.03‰ to 0.53 ± 0.03‰; Mariela, δ56Fe = 0.13 ± 0.03‰. The O isotopic composition (δ18O, 18O/16O relative to VSMOW) of the same Chilean magnetite samples are: Los Colorados, δ18O (±2σ) = 1.92 ± 0.08‰ to 3.17 ± 0.03‰; El Laco, δ18O = 4.00 ± 0.10‰ to 4.34 ± 0.10‰; Mariela, δ18O = (1.48 ± 0.04‰). The δ18O and δ56Fe values for Kiruna magnetite yield an average of 1.76 ± 0.25‰ and 0.16 ± 0.07‰, respectively. The Fe and O isotope data from the Chilean IOAs fit unequivocally within the range of magnetite formed by high-temperature magmatic or magmatic-hydrothermal processes (i.e., δ56Fe 0.06-0.49‰ and δ18O = 1.0-4.5‰), consistent with a high-temperature origin for Chilean IOA deposits. Additionally, minimum formation temperatures calculated by using the measured Δ18O

  6. Biogeographic patterns of Chilean littoral fishes Patrones biogeográficos de los peces litorales de Chile

    Directory of Open Access Journals (Sweden)

    F. PATRICIO OJEDA

    2000-12-01

    Full Text Available In this study, we analyzed the biogeographic patterns of the Chilean littoral fish fauna, including latitudinal trends in teleost and chondrichthyan fish species richness, their distribution range patterns, and their level of endemism, both to the Chilean coast and the Southeastern Pacific. We determined the number and percentage of fish taxa within four different groups based on their biogeographic affinities. This was done, both for teleost and chondrichthyan fishes, at the species, genus and family level. In order to recognise the existence of biogeographic regions, we applied cluster and ordination analyses to the distribution data, using objective bootstrapping techniques at the three taxonomic levels used. We found that littoral fish diversity remains fairly constant along the coast down to around 40º S, declining south of this latitude. We detected two biogeographic regions along the Chilean coast, with a break between them at 40º S. These results lend support to previously recognized biogeographic provinces or faunistic units. These two biogeographic regions are a reflection of the mixed origin of the Chilean littoral ichthyofauna, consisting of northern warm-temperate fishes of subtropical origin and southern cold-temperate fishes of subantarctic origin. While the percentage of fishes endemic to the Chilean coast is not high (18%, a large percentage of teleost species inhabiting Chilean littoral waters are endemic to the Southeastern Pacific (44%. Dispersal and evolutionary history, rather that other factors, seem to explain the observed patterns of distribution of this particular fish fauna. This study represents a necessary first step towards understanding the biogeography of Southeastern Pacific marine fishesEn este estudio, analizamos los patrones biogeográficos de los peces litorales chilenos, incluyendo las tendencias latitudinales en riqueza de especies de peces teleosteos y condrictios, sus rangos de distribución, y nivel de

  7. Metáforas en Lengua de Señas Chilena Metaphors in Chilean Sign Language

    Directory of Open Access Journals (Sweden)

    Carolina Becerra

    2008-05-01

    Full Text Available Este estudio describe las características del lenguaje metafórico de personas sordas chilenas y su impacto en la comprensión lingüística. La relevancia de esta pregunta radica en la escasez de investigaciones realizadas, particularmente a nivel nacional. Se desarrolló un estudio cualitativo en base a análisis de videos de sujetos sordos en habla espontánea. Se confeccionó una lista de metáforas conceptuales y no conceptuales en Lengua de Señas Chilena. Posteriormente se evaluó su comprensión en un grupo de sujetos sordos, educados con modalidad comunicativa de lengua de señas. Los resultados obtenidos permiten observar la existencia de metáforas propias de la cultura sorda. Ellas serían coherentes con las particulares experiencias de los sujetos sordos y no necesariamente concuerdan con el lenguaje oral.The present study examined the characteristics of Chilean deaf people's metaphoric language and its relevance in linguistic comprehension. This key question is based in the scarcity of studies conducted in Chile. A qualitative study was developed, on the basis of analysis of videos of Chilean deaf people spontaneous sign language. A list of conceptual and no conceptual metaphors in Chilean sign language was developed. The comprehension of these metaphors was evaluated in a group of deaf subjets, educated using sign language communication. The results identify the existence of metaphors of the deaf culture. These methaphors would be coherent with the particular experiences of deaf subjets and do not necessarily agree with spoken language.

  8. Use of thermography and fluorescein angiography in the management of a Chilean flamingo with avascular necrosis of the wing.

    Science.gov (United States)

    Hurley-Sanders, Jennifer L; Bowman, Karl F; Wolfe, Barbara A; Nutter, Felicia B; Sladky, Kurt K; Stoskopf, Michael K

    2012-12-01

    A Chilean flamingo (Phoenicopterus chilensis) was presented to the veterinary clinic at the North Carolina Zoological Park for evaluation of acute weakness of the right wing. Results of a physical examination revealed a lack of a palpable pulse in the radial artery, which suggested occlusion or obstruction of the vessel. Radiography, thermography, and fluorescein angiography confirmed right wing injury and vascular compromise. Based on the poor prognosis for return to function associated with irreversible vascular damage, the wing was amputated. After a period of observation and treatment, the bird was returned to public exhibit.

  9. Cytogenetics of Chilean angiosperms: Advances and prospects Citogenética de angiospermas chilenas: Avances y proyecciones

    Directory of Open Access Journals (Sweden)

    PEDRO JARA-SEGUEL

    2012-03-01

    Full Text Available Cytogenetic data on Chilean angiosperms have been reported since at least eight decades ago; however, much of this information is disperse in diverse sources and is not readily available as a comprehensive document that allows having a general vision on advances and gaps in this matter. The goal of this paper is to summarize the advances and prospets on cytogenetic studies of the Chilean angiosperms based on compiled publications from 1929 to 2010. We found 78 publications supplied by four groups of Chilean researchers and some foreign specialists. Cytogenetic data have been reported for 139 Chilean angiosperm species (2.8 % of the total, which belong to 58 genera and 34 families. During 2001-2010 there was an increase in the number of publications, being available 40 reports including 95 additional species. Based on these data, we hope that such a trend can be maintained in the next decade if the current research groups and young specialists continue to be interested in the study of native plants.Los datos citogenéticos sobre angiospermas chilenas han sido reportados desde al menos ocho décadas atrás; sin embargo, mucha de esta información está dispersa en diversas fuentes y no está disponible como un documento completo que permita tener una visión general sobre los avances y vacíos en esta materia. El objetivo de este trabajo es resumir los avances y proyecciones sobre los estudios citogenéticos disponibles para angiospermas chilenas, basado en publicaciones recopiladas desde 1929 hasta el 2010. Nosotros encontramos 78 publicaciones aportadas por cuatro grupos de investigadores chilenos y por algunos especialistas extranjeros. Datos citogenéticos han sido reportados para 139 especies de angiospermas chilenas (2.8 % del total, las cuales pertenecen a 58 géneros y 34 familias. Durante los años 2001-2010, existió un incremento en el número de publicaciones estando disponibles 40 reportes que incluyen 95 especies adicionales. Basados

  10. Evidence of Sympatry of Clade A and Clade B Head Lice in a Pre-Columbian Chilean Mummy from Camarones

    Science.gov (United States)

    Boutellis, Amina; Drali, Rezak; Rivera, Mario A.; Mumcuoglu, Kosta Y.; Raoult, Didier

    2013-01-01

    Three different lineages of head lice are known to parasitize humans. Clade A, which is currently worldwide in distribution, was previously demonstrated to be present in the Americas before the time of Columbus. The two other types of head lice are geographically restricted to America and Australia for clade B and to Africa and Asia for clade C. In this study, we tested two operculated nits from a 4,000-year-old Chilean mummy of Camarones for the presence of the partial Cytb mitochondrial gene (270 bp). Our finding shows that clade B head lice were present in America before the arrival of the European colonists. PMID:24204678

  11. Analysis of Tsunamigenic Coastal Rock Slope Failures Triggered by the 2007 Earthquake in the Chilean Fjordland

    Science.gov (United States)

    Sepulveda, S. A.; Serey, A.; Hermanns, R. L.; Redfield, T. F.; Oppikofer, T.; Duhart, P.

    2011-12-01

    The fjordland of the Chilean Patagonia is subject to active tectonics, with large magnitude subduction earthquakes, such as the M 9.5 1960 earthquake, and shallow crustal earthquakes along the regional Liquiñe-Ofqui Fault Zone (LOFZ). One of the latter (M 6.2) struck the Aysen Fjord region (45.5 S) on the 21st of April 2007, triggering dozens of landslides in the epicentral area along the fjord coast and surroundings. The largest rock slides and rock avalanches induced a local tsunami that together with debris flows caused ten fatalities and severely damaged several salmon farms, the most important economic activity of the area. Multi-scale studies of the landslides triggered during the Aysen earthquake have been carried out, including landslide mapping and classification, slope stability back-analyses and structural and geomorphological mapping of the largest failures from field surveys and high-resolution digital surface models created from terrestrial laser scanning. The failures included rock slides, rock avalanches, rock-soil slides, soil slides and debris flows. The largest rock avalanche had a volume of over 20 million cubic metres. The landslides affected steep slopes of intrusive rocks of the North Patagonian batholith covered by a thin layer of volcanic soils, which supports a high forest. The results of geotechnical analyses suggest a site effect due to topographic amplification on the generation of the landslides, with peak ground accelerations that may have reached between about 1.0 and 2.0 g for rock avalanches and between 0.6 and 1.0 g for shallow rock-soil slides, depending on the amount of assumed vertical acceleration and the applied method (limit equilibrium and Newmark). Attenuation relationships for shallow crustal seismicity indicate accelerations below 0.5 g for earthquakes of a similar magnitude and epicentral distances. Detailed field structural analyses of the largest rock avalanche in Punta Cola indicate a key role in the failure

  12. Anglicismos y aculturación en la sociedad chilena (English loanwords: acculturation in chilean society

    Directory of Open Access Journals (Sweden)

    Constanza Gerding Salas

    2012-06-01

    American culture on Chilean society. Hence, the objectives of this study were to determine the presence of English loanwords in the press in order to describe them, determine their frequency of use and infer the causes of their adoption. To achieve these objectives, English borrowings collected from newspapers between January 2003 and December 2009 were classified both manually and semi-automatically. Then these Anglicisms were analyzed from the perspective of their formal characteristics, their frequency of use and the areas of knowledge to which they belonged. English loanwords were found to be adopted rather than adapted; it was also established that they have a strong presence in today’s journalistic writing, specifically in economics, computer science, sports and culture. Furthermore, their use is thought to be determined by four main factors: the lack of a counterpart in Spanish, social prestige, linguistic economy and user preference. Finally, it was concluded that the English language and American culture have a significant presence in the Chilean press.

  13. The origin of oriented lakes in the Andean foreland, Parque Nacional Torres del Paine (Chilean Patagonia)

    Science.gov (United States)

    Gonzales, Joseph; Aydin, Atilla

    2008-05-01

    The Parque Nacional Torres Del Paine and surrounding area in the Magallanes foreland basin in Chilean Patagonia is the site for numerous lakes fed by glaciers and rivers in the Andean highlands to the west. The lakes are elongate and have conspicuously systematic orientations. We hypothesize that the origin of the oriented lakes lies in the fault system, composed of a right-lateral strike-slip fault set oriented 58° from north, a left-lateral strike-slip set oriented 87°, and a thrust fault set oriented 167°, that exists within the underlying rocks. To test this hypothesis quantitatively, we determined the shape and orientation of the lakes by fitting each lake with an ellipse of appropriate aspect ratio, and later with multiple ellipses consistent with the composite geometry of some lakes. We then examined the faults in the area in terms of their kinematics, orientation and distribution. The distribution of lake orientations showed three distinct groups which appear to correspond to the three main fault groups. For lakes fitted with multiple ellipses, the difference in means between the right-lateral, left-lateral, and thrust faults and their corresponding groups of lakes are 3.05°, 1.57°, and 5.17°. Using a Kolmogorov-Smirnov (K-S) statistical test to compare the orientations of faults with respect to the lakes suggests that there is not a strongly significant difference between the fault orientations and the corresponding lake groups. These results indicate that the faults have a profound control on the orientation, shape, and distribution of the lakes. We attribute this to faults and their damage zones being weaker and therefore prone to a faster rate of erosion, and to stress perturbations associated with discontinuous faults resulting in localized high density fracturing and surface subsidence. These results have implications for lake and drainage system morphologies in other foreland basins along the Andes and other similar settings.

  14. New Chilean iron meteorites: Medium octahedrites from Northern Chile are unique

    Science.gov (United States)

    Wasson, John T.; Canut de Bon, Claudio

    1998-03-01

    We report data on three new irons from Northern Chile, and propose names. All are unnamed irons from the meteorite collection at the Universidad de La Serena. For two the provenance is unknown, for the third the presumed discovery site is in the countryside east of Iquique. The three have been analyzed by neutron-activation analysis and their structures examined with a binocular microscope. La Serena is a complete 663 g iron, a new member of group IIICD; it is not paired with any other iron. Elqui has a mass of 260 g; two faces are fractures, possibly produced by human actions, but fusion crust appears to be present on some of the remaining surface. It is a hexahedrite and a member of group IIAB. but its composition differs from that of all other Chilean hexahedrites. The third iron, Pozo Almonte, is a medium octahedrite member of group IIIAB, one of the most common meteorite groups. To find out whether it is paired, we assembled a full set of IIIAB irons from Northern Chile. Our compositional data show that Pozo Almonte is not paired with any other IIIAB iron, and that there are no pairings within the full set with the possible exception of Joel's Iron and Sierra Sandon, which differ only in their contents of Ir, 0.39 and 0.34 mg/g, respectively. However, Buchwald's (1975) structural observations rule out this possible pairing. We find appreciable differences in Cu, As and Au between the previously paired IIIAB irons Chanaral and Ilimaes, and conclude that these should not be paired.

  15. Salares versus coastal ecotypes of quinoa: Salinity responses in Chilean landraces from contrasting habitats.

    Science.gov (United States)

    Ruiz, Karina B; Aloisi, Iris; Del Duca, Stefano; Canelo, Valentina; Torrigiani, Patrizia; Silva, Herman; Biondi, Stefania

    2016-04-01

    Quinoa (Chenopodium quinoa Willd.) is a highly salt-tolerant species subdivided into five ecotypes and exhibiting broad intra-specific differences in tolerance levels. In a greenhouse study, Chilean landraces belonging either to the salares (R49) or coastal lowlands (VI-1, Villarrica) ecotype with contrasting agro-ecological origins were investigated for their responses to high salinity. The effects of two levels of salinity, 100 (T1) and 300 (T2) mM NaCl, on plant growth and on some physiological parameters were measured. Leaf and root Na(+) accumulation differed among landraces. T2 reduced growth and seed yield in all landraces with maximum inhibition relative to controls in R49. Salinity negatively affected chlorophyll and total polyphenol content (TPC) in VI-1 and Villarrica but not R49. Germination on saline or control media of seeds harvested from plants treated or not with NaCl was sometimes different; the best performing landrace was R49 insofar as 45-65% of seeds germinated on 500 mM NaCl-containing medium. In all landraces, average seedling root length declined strongly with increasing NaCl concentration, but roots of R49 were significantly longer than those of VI-1 and Villarrica up to 300 mM NaCl. Salt caused increases in seed TPC relative to controls, but radical scavenging capacity was higher only in seeds from T2 plants of R49. Total SDS-extractable seed proteins were resolved into distinct bands (10-70 kDa) with some evident differences between landraces. Salt-induced changes in protein patterns were landrace-specific. The responses to salinity of the salares landrace are discussed in relation to its better adaptation to an extreme environment.

  16. Linking the kinematics of the interplate and the offshore morphology along the Chilean subduction margin

    Science.gov (United States)

    Urrutia, Isabel; Moreno, Marcos; Oncken, Onno

    2016-04-01

    Morphological features at subduction zones are undoubtedly influenced by the complex interplay between the subducting slab and the overriding plate. Several studies suggest that the subduction dynamics is strongly dependent on the geometry and rheology of the margin (including gravity/density anomalies, viscous mantle flow and roughness of the slab, among others). However, it is not clear how the geomorphological variation of the forearc along strike can be used as a proxy for better understanding the mechanics on the interface and seismotectonic segmentation. Here we investigate the links between the kinematics of the plate interface and the morphology of the overriding plate along the Chilean margin by combining morphometrical and statistical analysis. We constructed swath profiles subtracting the averaged topography and performed gradient analysis to characterize variations of morphological features, and we compared these results with the locking degree distribution derived from the inversion of GPS data. On the coastal area the bathymetry and topography analysis shows a planar feature, gently dipping ocean-wards and backed by a cliff, which exhibits spatial variations in its width, height and extension along-strike. This morphology suggests a quiescence process or a "stable tectonic condition", at least since the late Quaternary (over multiple seismic cycles). The results indicate that this planar feature spatially correlates with the rupture size of recent great earthquakes and locking degree areas, suggesting that earthquake cycle deformation has an imprint on the offshore morphology, which can be used to study the transfer of stresses among adjacent seismotectonic segments and the periodicity and location of large earthquakes. In addition, the longevity of this correlation between topography, earthquake rupture and geodetic locking that likely integrates over a time window of several 103 to several 105 years indicates that the instrumentally inferred locking

  17. Seismic imaging of a megathrust splay fault in the North Chilean subduction zone (Central Andes)

    Science.gov (United States)

    Storch, Ina; Buske, Stefan; Schmelzbach, Cedric; Wigger, Peter

    2016-10-01

    Prominent trench-parallel fault systems in the arc and fore-arc of the Chilean subduction zone can be traced for several thousand kilometers in north-south direction. These fault systems possibly crosscut the entire crust above the subduction megathrust and are expected to have a close relationship to transient processes of the subduction earthquake cycles. With the motivation to image and characterize the structural inventory and the processes that occur in the vicinity of these large-scale fault zones, we re-processed the ANCORP'96 controlled-source seismic data set to provide images of the faults at depth and to allow linking geological information at the surface to subsurface structures. The correlation of the imaging results with observed hypocenter locations around these fault systems reveals the origin and the nature of the seismicity bound to these fault systems. Active and passive seismic data together yield a picture of a megathrust splay fault beneath the Longitudinal Valley at mid-crustal level, which can be observed from the top of the subduction plate interface and which seems to be connected to the Precordilleran Fault System (PFS) known at the surface. This result supports a previously proposed tectonic model where a megathrust splay fault defines the Western Altiplano as a crustal-scale fault-bend-fold. Furthermore, we clearly imaged two branches of the Uyuni-Kenayani Fault (UKF) in a depth range between 0 and 20 km. In summary, imaging of these faults is important for a profound understanding of the tectonic evaluation and characterization of the subduction zone environment, for which the results of this study provide a reliable basis.

  18. Communicating about eating behaviors. A qualitative study of Chilean women and their health-care providers.

    Science.gov (United States)

    Gálvez, Patricia; Valencia, Alejandra; Palomino, Ana M; Cataldo, Marjorie; Schwingel, Andiara

    2015-01-01

    Good communication between health care providers (HCPs) and patients is critical in achieving positive health outcomes. The purpose of this article was to compare the perceptions of Chilean woman and their HCPs with respect to determinants of eating behaviors. Semi-structured interviews were conducted with women (n=15) visiting a public health care center in Chile and with their HCPs (n=8) who were in charge of promoting healthy eating behaviors among women. Data from the interviews indicated similarities and inconsistencies in determinants of eating behaviors between the groups. Both mentioned many important factors that influence women's eating behaviors, including food preferences, dietary knowledge, self-control and self-efficacy, family, food cost, and food availability. HCPs appeared to be less aware of the role that personality traits and past experiences play as potential determinants which women mentioned. In contrast, women were less aware of the influence of anxiety and low self-esteem on eating choices, which HCPs noted as key factors. Although it was encouraging to see agreement between women and their HCPs in some areas, it is important to work on increasing understanding among the groups with respect to the important role psychological factors play in influencing eating behavior. We suggest that HCPs should focus on the importance of women's personality traits and past eating behaviors, as well as work on improving women's self-esteem and helping to decrease their anxiety levels. HCPs should be encouraged to develop good communication with each person in order to help them understand the roles that external and internal factors play in eating behaviors.

  19. Chilean coastal orographic precipitation experiment: A tale of two rain regimes

    Science.gov (United States)

    Massmann, Adam K.

    The Chilean Coastal Orographic Precipitation Experiment Pilot Project (CCOPE-2015) was an exploratory field campaign to better understand the mechanisms of orographic precipitation enhancement in the Nahuelbuta Mountains of Southern Chile (38 deg. S.). Observations collected include: (1) surface rainfall from a network of 10 data logging rain gauges, (2) vertical precipitation profiles from a pair of K-band Micro Rain Radars, (3) rain drop size distributions from an optical disdrometer, (4) upstream wind and thermodynamic profiles from radiosonde launches, and (5) aerosol number concentration and size distribution measurements from a condensation particle counter and an ultra-high sensitivity aerosol spectrometer. An overview of observations collected during CCOPE-2015 is presented. The character of precipitation over the Nahuelbuta is contrasted between periods of ice-initiated and warm rain. Thirty-four percent of rainfall fell during warm rain periods, while fifty-two percent of rainfall fell during ice-initiated periods. Warm rain drop size distributions are characterized by many more and relatively smaller drops than ice-initiated drop size distributions. Both the portion and properties of ice-initiated and warm rainfall compare favorably with observations of coastal mountain rainfall at a similar latitude in California. Observations suggest that enhancement is stronger during warm rain periods, but uncertainty precludes declarations of significance. Additionally, the skill of satellite-based quantitative precipitation estimation is assessed for each rain regime. A cutting-edge NASA Global Precipitation Measurement mission algorithm severely underestimates orographic enhancement of precipitation in the Nahuelbuta mountains, but performs better in the lee and upwind of the mountains. Much of the error in estimating orographic rain is during warm rain periods, while performance is much improved during ice-initiated rain periods.

  20. Androgen receptor gene CAG and GGN repeat polymorphisms in Chilean men with primary severe spermatogenic failure.

    Science.gov (United States)

    Castro-Nallar, Eduardo; Bacallao, Ketty; Parada-Bustamante, Alexis; Lardone, María C; López, Patricia V; Madariaga, Marcia; Valdevenito, Raúl; Piottante, Antonio; Ebensperger, Mauricio; Castro, Andrea

    2010-01-01

    There is ample documentation supporting the fact that androgens are required for normal spermatogenesis. A minority of infertile men have abnormal testosterone blood levels or mild androgen receptor mutations. We investigated the androgen receptor CAG and GGN repeat lengths in Chilean men with spermatogenic impairment. We studied 117 secretory azoospermic/oligozoospermic men (93 idiopathic and 24 excryptorchidic), without Y-chromosome microdeletions, and 121 controls with normal spermatogenesis (42 obstructive and 79 normozoospermic men). Peripheral blood was drawn to obtain genomic DNA for polymerase chain reaction and automated sequencing of CAG and GGN repeats. Testicular characterization included hormonal studies, physical evaluation, and seminal and biopsy analysis. The CAG and GGN polymorphism distributions were similar among idiopathic men, excryptorchidic men, and controls and among the different types of spermatogenic impairment. However, the proportion of the CAG 21 allele was significantly increased in idiopathic cases compared to controls (P = .012 by Bonferroni test, odds ratio = 2.99, 95% confidence interval, 1.27-7.0) and the CAG 32 allele only was observed in excryptorchidic patients (P CAG 21 allele (P = .024, χ(2) test). On the other hand, in idiopathic cases and controls the most common GGN allele was 23, followed by 24, but an inverse relation was found among excryptorchidic cases. The joint distribution of CAG and GGN in control, idiopathic, and excryptorchidic groups did not show an association between the 2 allele repeat polymorphisms (P > 0.05, χ(2) test). Our results suggest that the CAG 21 allele seems to increase the risk of idiopathic Sertoli cell-only syndrome. Moreover, the GGN 24 allele could be contributing to deranged androgen receptor function, associated with cryptorchidism and spermatogenic failure.

  1. Estimates of Abundance and Trend of Chilean Blue Whales off Isla de Chiloé, Chile

    Science.gov (United States)

    Cabrera, Elsa; Carlson, Carole A.; Brownell, Robert L.

    2017-01-01

    Since 1970, blue whales (Balaenoptera musculus) have been seen feeding in the waters off southern Chile during the summer and autumn (December to May). Investigation of the genetic, acoustic and morphological characteristics of these blue whales shows that they are a distinct but unnamed subspecies, called the Chilean blue whales. Photo-identification surveys have been conducted in the waters off northwestern Isla Grande de Chiloé, southern Chile from 2004–2012 and Isla Chañaral, central Chile in 2012. Over this time, 1,070 blue whales were encountered yielding, after photo-quality control, 318 and 267 unique photographs of the left and right side of the flank respectively. Using mark-recapture analysis of left and right side photographs collected from Isla Grande de Chiloé (2004–2012), open population models estimate that ~570–760 whales are feeding seasonally in this region. POPAN superpopulation abundance estimates for the same feeding ground in 2012 are 762 (95% confidence intervals, CI = 638–933) and 570 (95% CI 475–705) for left and right side datasets respectively, very similar to results from closed population models. Estimates of trend revealed strong variation in abundance, peaking in 2009 and [suggesting] fluctuating use in the survey area over time, likely related to the density of their prey. High inter-annual return rates suggest a degree of site-fidelity of individuals to Isla Grande de Chiloé and that the number of whales using this feeding ground is relatively small. PMID:28081160

  2. Unravel biophysical factors on river water quality response in Chilean Central-Southern watersheds.

    Science.gov (United States)

    Yevenes, Mariela A; Arumí, José L; Farías, Laura

    2016-05-01

    Identifying the key anthropogenic (land uses) and natural (topography and climate) biophysical drivers affecting river water quality is essential for efficient management of water resources. We tested the hypothesis that water quality can be predicted by different biophysical factors. Multivariate statistics based on a geographical information system (GIS) were used to explore the influence of factors (i.e., precipitation, topography, and land uses) on water quality (i.e., nitrate (NO 3 (-)), phosphate (PO 4 (3-)), silicate (Si(OH)4), dissolved oxygen (DO), suspended solids (TSS), biological oxygen demand (DO), temperature (T), conductivity (EC), and pH) for two consecutive years in the Itata and Biobío river watersheds, Central Chile (36° 00' and 38° 30'). The results showed that (NO 3 (-)), (PO 4 (3-)), Si(OH)4, TSS, EC, and DO were higher during rainy season (austral fall, winter, and spring), whereas BOD and temperature were higher during dry season. The spatial variation of these parameters in both watersheds was related to land use, topography (e.g., soil moisture, soil hydrological group, and erodability), and precipitation. Soil hydrological group and soil moisture were the strongest explanatory predictors for PO 4 (3-) , Si(OH)4 and EC in the river, followed by land use such as agriculture for NO 3 (-) and DO and silviculture for TSS and Si(OH)4. High-resolution water leaching and runoff maps allowed us to identify agriculture areas with major probability of water leaching and higher probability of runoff in silviculture areas. Moreover, redundancy analysis (RDA) revealed that land uses (agriculture and silviculture) explained in 60 % the river water quality variation. Our finding highlights the vulnerability of Chilean river waters to different biophysical drivers, rather than climate conditions alone, which is amplified by human-induced degradation.

  3. Streamflow responses to Chilean Megathrust earthquakes during the 20th and 21st centuries

    Science.gov (United States)

    Mohr, C.; Manga, M.; Wang, C. Y.; Korup, O.

    2015-12-01

    Coseismic static stress and dynamic stresses generated by propagating seismic waves cause responses in hydrological systems. Such responses include changes in the water level, hydrochemistry and streamflow discharge. Earthquake effects on hydrological systems provide a means to study the interaction between stress changes and regional hydrology, which is otherwise rarely possible. Chile is a country of frequent and large earthquakes and thus provides abundant opportunities to study such interactions and processes. Here we present streamflow responses to several Chilean Megathrust earthquakes, including the 1943 Mw 8.1 Coquimbo, 1950 Mw 8.2 Antofagasta, 1960 Mw 9.5 Valdivia, 1985 Mw 8.0 Valparaiso, 1995 Mw 8.0 Antofagasta, 2010 Mw 8.8 Maule, and the 2014 Mw 8.2 Iquique earthquakes. The stream gauges (n=716) are scattered across Chile, from the Altiplano in the North to Tierra del Fuego in the South. The network thus covers the Andes mountain ranges, the central valley, the Coastal Mountain ranges and (mainly in the more southern parts) the Coastal flats. We combine empirical magnitude-distance relationships, tree-based machine learning tools, and process-based modeling to characterize responses. We first assess the streamflow anomalies and relate these to environmental factors including geology, topography, altitude, soil and vegetation. We then apply 1D-groundwater flow modeling to selected catchments in order to test competing hypotheses for the origin of streamflow changes. We show that the responses of streamflow were heterogeneous, both in sign (decreases and increases in discharge) and in magnitude.

  4. Risk variants in BMP4 promoters for nonsyndromic cleft lip/palate in a Chilean population

    Directory of Open Access Journals (Sweden)

    Suazo José

    2011-12-01

    Full Text Available Abstract Background Bone morphogenetic protein 4 gene (BMP4 plays a key role during maxillofacial development, since orofacial clefts are observed in animals when this gene is conditionally inactivated. We recently reported the existence of association between nonsyndromic cleft lip/palate (NSCLP and BMP4 polymorphisms by detecting transmission deviations for haplotypes that include a region containing a BMP4 promoter in case-parent trios. The aim of the present study was to search for possible causal mutations within BMP4 promoters (BMP4.1 and BMP4.2. Methods We analyzed the sequence of BMP4.1 and BMP4.2 in 167 Chilean NSCLP cases and 336 controls. Results We detected three novel variants in BMP4.1 (c.-5514G > A, c.-5365C > T and c.-5049C > T which could be considered as cleft risk factors due to their absence in controls. Additionally, rs2855530 G allele (BMP4.2 carriers showed an increased risk for NSCLP restricted to males (OR = 1.52; 95% C.I. = 1.07-2.15; p = 0.019. For this same SNP the dominant genotype model showed a higher frequency of G/G+G/C and a lower frequency of C/C in cases than controls in the total sample (p = 0.03 and in the male sample (p = 0.003. Bioinformatic prediction analysis showed that all the risk variants detected in this study could create new transcription factor binding motifs. Conclusions The sex-dependent association between rs2855530 and NSCLP could indirectly be related to the differential gene expression observed between sexes in animal models. We concluded that risk variants detected herein could potentially alter BMP4 promoter activity in NSCLP. Further functional and developmental studies are necessary to support this hypothesis.

  5. Causality and temporality: the case of cuando (when in XX century Chilean essays

    Directory of Open Access Journals (Sweden)

    Nataly Cancino Cabello

    2012-12-01

    Full Text Available This study analyzes expression of causality in a corpus of essays by 20th century Chilean authors. After a review of the theoretical literature, we concluded that there are different theoretical proposals for the treatment of the relationship between cause and effect. This decision was reached because, aside from its formal and functional expression in language, causality consists of a logical and semantic relationship inherent to natural processes, in that cause always precedes effect. For this reason, the cause-effect relationship is not exclusive to causal relationships, but it also encompasses other types of structures in which the degree or type of relationship/bonding among the parts of the construction will vary. For this reason, in this research we have considered all constructions where causal relationships are manifested in some respect: causal, consecutive, final, concessive and conditional. We can also add to this some cases of exclusive opposites in which appears to be an explanatory relationship. With this assumption in mind, we focus on the explanation of the synchronic use of cuando (when in temporal expressions. From this analysis some concerns have arisen that cannot be explained by the actual use of the form in question. Therefore, we must look for the answers in the aspects of linguistic change that gave rise to it. In addition, a quantification of the results shows the frequency of cuando (when as compared to other forms of causal relationship that are not related to temporality.

  6. The Self-Regulation of Electronic Commerce: An Appraisal in Accordance to the Chilean Law of Unfair Competition

    Directory of Open Access Journals (Sweden)

    David López Jiménez

    2016-05-01

    Full Text Available Purpose – Electronic commerce or e-commerce constitutes a commercial activity on the rise. Although it has many advantages, there are several lingering factors that prevent its consolidation, such as the lack of trust of the potential consumer/user. In order to overcome that obstacle, instruments of self-regulation were created in the field of advertising. Firms that wish to distinguish themselves favorably against their competitors have the option of adopting those instruments, which play a praiseworthy role regarding the target audience and constitutes a considerable improvement of consumer rights. However, on occasions, problems arise in the market when those systems of self-regulation bind third parties that did not voluntarily enter into a contract. This paper tackles the question of if self-regulation of advertising in the net can be put in place should it affects the honor of the third party not committed with the fair-practices document. Methodology/approach/design – In this article, we will refer to the particularities that arise from a case concerning the Chilean Law no. 20,168, of 2007, on unfair competition and self-regulation of advertising in the Internet pertaining WOM, Movistar, Entel, Claro and Virgin. Findings – The Chilean Law no. 20,168, of 2007 contributes to the goal of discouraging conduct contrary to good faith or good practices in advertising in conjunction with codes of conduct that have been approved in the field related to the systems of self-regulation.

  7. Contrasting Genetic Structure and Diversity of Galaxias maculatus (Jenyns, 1848) Along the Chilean Coast: Stock Identification for Fishery Management.

    Science.gov (United States)

    González-Wevar, Claudio; Salinas, Pilar; Hüne, Mathias; Segovia, Nicolás; Vargas-Chacoff, Luis; Oda, Esteban; Poulin, Elie

    2015-01-01

    Galaxias maculatus (Pisces: Galaxiidae) commonly known as "puye" has a disjunct distribution along the Southern Hemisphere including landlocked and migratory populations at latitudes over 30°S in South America, Australia, Tasmania, and New Zealand. Chilean artisanal fishery of G. maculatus has become less important as a resource due to multiple factors including overexploitation, pollution, introduction of predators, and competitors. At the same time, the current conservation status of the species in Chile is still uncertain. Here, we used mtDNA control region sequences (925bp) to investigate main patterns of genetic diversity and structure in populations from 2 biogeographic areas along the Chilean coast. Extremely high levels of genetic diversity characterize the species, suggesting a low amount of influence of the last glacial cycle over its demography compared with other studies in freshwater and marine South American fishes. However, we recognized contrasting genetic patterns between the Intermediate Area (between 30°S and 42°S) and the Magellanic Province (between 42°S and 56°S). On the one hand, over a narrow geographical range (stock units for G. maculatus and this information should be integrated in future management strategies and aquaculture programs for this species.

  8. Psychometric Properties of the Obsessive-Compulsive Inventory-Child Version (OCI-CV in Chilean Children and Adolescents.

    Directory of Open Access Journals (Sweden)

    Agustín E Martínez-González

    Full Text Available In recent years, there has been a considerable increase in the development of assessment tools for obsessive-compulsive symptomatology in children and adolescents. The Obsessive Compulsive Inventory-Child Version (OCI-CV is a well-established assessment self-report, with special interest for the assessment of dimensions of Obsessive Compulsive Disorder (OCD. This instrument has shown to be useful for clinical and non-clinical populations in two languages (English and European Spanish. Thus, the aim of this study was to analyze the psychometric properties of the OCI-CV in a Chilean community sample. The sample consisted of 816 children and adolescents with a mean age of 14.54 years (SD = 2.21; range = 10-18 years. Factor structure, internal consistency, test-retest reliability, convergent/divergent validity, and gender/age differences were examined. Confirmatory factor analysis showed a 6-factor structure (Doubting/Checking, Obsessing, Hoarding, Washing, Ordering, and Neutralizing with one second-order factor. Good estimates of reliability (including internal consistency and test-retest, evidence supporting the validity, and small age and gender differences (higher levels of OCD symptomatology among older participants and women, respectively are found. The OCI-CV is also an adequate scale for the assessment of obsessions and compulsions in a general population of Chilean children and adolescents.

  9. Sex determination using the mesio-distal dimension of permanent maxillary incisors and canines in a modern Chilean population.

    Science.gov (United States)

    Peckmann, Tanya R; Logar, Ciara; Garrido-Varas, Claudia E; Meek, Susan; Pinto, Ximena Toledo

    2016-03-01

    The pelvis and skull have been shown to be the most accurate skeletal elements for the determination of sex. Incomplete or fragmentary bones are frequently found at forensic sites however teeth are often recovered in forensic cases due to their postmortem longevity. The goal of the present research was to investigate sexual dimorphism between the mesio-distal dimension of the permanent maxillary incisors and canines for the determination of sex in a contemporary Chilean population. Three hundred and three dental models (126 males and 177 females) from individuals ranging in age from 13 years to 37 years old were used from the School of Dentistry, University of Chile. The statistical analyses showed that only the central incisors and canines were sexually dimorphic. Discriminant function score equations were generated for use in sex determination. The average accuracy of sex classification ranged from 59.7% to 65.0% for the univariate analysis and 60.1% to 66.7% for the multivariate analysis. Comparisons to other populations were made. Overall, the accuracies ranged from 54.4% to 63.3% with males most often identified correctly and females most often misidentified. The determination of sex from the mesio-distal width of incisors and canines in Chilean populations does not adhere to the Mohan and Daubert criteria and therefore would not be presented as evidence in court.

  10. Association of Anxiety-Related Polymorphisms with Sports Performance in Chilean Long Distance Triathletes: A Pilot Study

    Directory of Open Access Journals (Sweden)

    Jorge A. Sanhueza, Tomás Zambrano, Carlos Bahamondes-Avila, Luis A. Salazar

    2016-12-01

    Full Text Available Different factors affecting athletic performance are well established: intensity and type of training, anthropometric characteristics as well as an important psychological component. However, the contribution of the genetic background has been less investigated. The aim of the present study was to investigate the influence of polymorphisms within genes associated with stress and anxiety (5HTT, CRH2R, ACE, NK1R, 5HT1AR and CRF-BP on the physical capability and sports performance in triathletes. One hundred and ninety two (192 unrelated Chilean triathletes who participated in the 2014 70.3 Pucón city triathlon were divided into opposite subgroups of sports performance according to their time results. We identified significant associations for five polymorphisms (5HTT 5-HTTLPR, ACE I/D, NK1R rs6715729, 5HT1AR -1019C>G and CRF-BP CRF-BPs11 with athletic performance. Our results indicate that these polymorphisms are associated with differential sports performance in Chilean triathletes, establishing an initial background for better understanding the relationship between physical performance, genetics and anxiety disorders.

  11. Twelve new Demospongiae (Porifera) from Chilean fjords, with remarks upon sponge-derived biogeographic compartments in the SE Pacific.

    Science.gov (United States)

    Hajdu, Eduardo; Desqueyroux-Faúndez, Ruth; Carvalho, Mariana De Souza; Lôbo-Hajdu, Gisele; Willenz, Philippe

    2013-12-02

    This article reports on 12 new species originating from the Chilean fjords region, namely Clathria (Microciona) mytilifila sp. nov., Haliclona (Reniera) caduca sp. nov., Latrunculia (L.) ciruela sp. nov., Latrunculia (L.) copihuensis sp. nov., Latrunculia (L.) verenae sp. nov., Latrunculia (L.) yepayek sp. nov., Myxilla (Burtonanchora) araucana sp. nov., Neopodospongia tupecomareni sp. nov., Oceanapia guaiteca sp. nov., Oceanapia spinisphaera sp. nov., Suberites cranium sp. nov. and Tethya melinka sp. nov. The material studied was collected between 5 and 30 m depth at latitudes comprised between 42º and 50ºS, and is part of a large collection of Chilean sponges gathered by an international team in a series of expeditions. Identification keys are provided for SE Pacific Suberites and Latrunculia, and the known species of Myxilla (Burtonanchora) and Neopodospongia. A trans-Pacific link to the New Zealand fauna was retrieved for the latter genus. Distribution ranges apparent from the materials studied here are judged too preliminary to allow any inference on biotic boundaries in the SE Pacific. A revision of earlier assertions about these biogeographic units and their boundaries concluded that very little support remains other than for existence of a Magellanic fauna. This is in part a consequence of revising the taxonomy of sponge species originally deemed to underpin these areas. Specifically, the former proposal of a Central to Southern Chile biogeographic unit (33-56ºS) has been markedly undone. 

  12. Contenido de flavonoides y compuestos fenólicos de mieles chilenas e índice antioxidante Content of flavonoids and phenolic compounds in chilean honeys. Orac index

    Directory of Open Access Journals (Sweden)

    Orlando Muñoz

    2007-08-01

    Full Text Available A comparison of the phenolic content of several Chilean honeys showed great variations in flavonoid concentration among the samples analysed. Higher amounts of phenolics are found in honey from dry climates. The antioxidant effect of extracts, using ORAC analysis, did not correlate with the flavonoid content or with the total phenolic concentration.

  13. From import dependency to export orientation the case of the chilean dairy sector

    Directory of Open Access Journals (Sweden)

    Paulina Rytkönen

    2011-12-01

    Full Text Available La globalización ha provocado la transformación estructural del sector lácteo a nivel mundial. Esto incluye la transnacionalización y extrema concentración de empresas y haciendas, impulsada por crecientes niveles de competencia. El sector lácteo no estaba más regulado por políticas estatales sino que fue colocado dentro del contexto de una gobernancia dirigida por el mercado y dominada por las estrategias de empresas transnacionales. La globalización ha creado una nueva división internacional de trabajo, en la cual nuevos paises exportadores pueden emerger. La transformación del sector lácteo chileno ilustra to-dos estos cambios. Durante la década de 1970, el cambio de régimen de política económica, dentro del cual el estado interventor fue reemplazado por un proceso de alta liberalización, dio lugar a una ruptura con la dependencia de importaciones. Decisiones estratégicas de la industria resultaron a largo plazo en mejoramientos de poder competitivo y un cambio final hacia el sector exportador. Contrariamente a resultados anteriores, este artículo muestra que la globalización es la fuerza principal detrás de la reorientación del sector lácteo chileno, de dependencia de importaciones hacia una orientación exportadora. English: Globalization has triggered a structural transformation of the dairy sector world-wide. This includes transnationalization and extreme concentration of firms and farms, fueled by increased levels of competition. Dairying is no longer regulated by state politics but is placed within the context of a market-led global governance dominated by the strategies of trans-national companies. Moreover, the globalization of the sector has caused the emergence of a new global division of labour, where new exporting countries can emerge. The transformation of the Chilean dairy sector illustrates all these changes. During the 1970s, the shift of economic policy regime within which an intervening state was

  14. Beliefs of Chilean University English Teachers: Uncovering Their Role in the Teaching and Learning Process

    Directory of Open Access Journals (Sweden)

    Díaz Larenas Claudio

    2013-10-01

    Full Text Available Beliefs continue to be an important source to get to know teachers’ thinking processes and pedagogical decisions. Research in teachers’ beliefs has traditionally come from English-speaking contexts; however, a great deal of scientific work has been written lately in Brazil, Mexico, Colombia, and Argentina. This study elicits 30 Chilean university teachers’ beliefs about their own role in the teaching and learning of English in university environments. Through a qualitative research design, the data collected from interviews and journals were analyzed, triangulated, and categorized based on semantic content analysis. Results of the study indicate that university teachers reveal challenging and complex views about what it is like to teach English as a foreign language in a university context in Chile. The article concludes with a call to reflect on the importance of beliefs unravelling in teacher education programmes.Las creencias continúan siendo una fuente de importancia para conocer los procesos de pensamiento y los estilos pedagógicos de los docentes. Los estudios sobre las creencias docentes provienen en su mayoría de contextos angloparlantes; sin embargo, en los últimos años se ha escrito una gran cantidad de trabajos científicos en Brasil, México, Colombia y Argentina. Este estudio recoge las creencias de treinta docentes universitarios chilenos sobre su papel en la enseñanza y aprendizaje del inglés en ambientes universitarios. A partir de un diseño de investigación cualitativo, los datos recolectados por medio de entrevistas y diarios personales fueron analizados, triangulados y categorizados según el análisis de contenido semántico. Los resultados indicaron que los docentes de educación superior tienen visiones desafiantes y complejas sobre lo que significa enseñar inglés como lengua extranjera en un contexto universitario en Chile. El artículo concluye con una invitación a reflexionar sobre la importancia de

  15. Increased Night Temperature Negatively Affects Grain Yield, Biomass and Grain Number in Chilean Quinoa

    Science.gov (United States)

    Lesjak, Jurka; Calderini, Daniel F.

    2017-01-01

    Quinoa high nutritive value increases interest worldwide, especially as a crop that could potentially feature in different cropping systems, however, climate change, particularly rising temperatures, challenges this and other crop species. Currently, only limited knowledge exists regarding the grain yield and other key traits response to higher temperatures of this crop, especially to increased night temperatures. In this context, the main objective of this study was to evaluate the effect of increased night temperature on quinoa yield, grain number, individual grain weight and processes involved in crop growth under the environmental conditions (control treatment) and night thermal increase at two phases: flowering (T1) and grain filling (T2) in southern Chile. A commercial genotype, Regalona, and a quinoa accession (Cod. BO5, N°191, grain bank from Semillas Baer, hereby referred to as Accession) were used, due to their adaptability to Southern Chilean conditions and contrasting grain yield potential, grain weight and size of plants. Temperature was increased ≈4°C above the ambient from 8 pm until 9 am the next morning. Control treatments reached a high grain yield (600 and 397 g m-2, i.e., Regalona and Accession). Temperature increase reduced grain yield by 31% under T1 treatment and 12% when under T2 in Regalona and 23 and 26% in Accession, respectively. Aboveground biomass was negatively affected by the thermal treatments and a positive linear association was found between grain yield and aboveground biomass across treatments. By contrast, the harvest index was unaffected either by genotype, or by thermal treatments. Grain number was significantly affected between treatments and this key trait was linearly associated with grain yield. On the other hand, grain weight showed a narrow range of variation across treatments. Additionally, leaf area index was not affected, but significant differences were found in SPAD values at the end of T1 treatment, compared

  16. Chilean patients’ perception of oral health-related quality of life after third molar surgery

    Directory of Open Access Journals (Sweden)

    Aravena PC

    2016-09-01

    Full Text Available Pedro Christian Aravena,1,2 Felipe Delgado,1 Hugo Olave,1 Carolina Ulloa-Marin,3 Francisco Perez-Rojas4 1School of Dentistry, Faculty of Medicine, 2Institute of Anatomy, Histology and Pathology, Faculty of Medicine, Universidad Austral de Chile, Valdivia, 3Department of Dentistry Based-Evidence, School of Dentistry, Universidad de Chile, Santiago, 4School of Medicine, Universidad Autónoma de Chile, Talca, Chile Objective: To describe the perception of the quality of life in oral health based on the Health-Related Quality of Life instrument in its Spanish version (HRQOL-sp in Chilean patients with third molar extraction surgery. Patients and methods: A cross-sectional study. The HRQOL-sp was administered to dental patients at the Public Hospital in Rio Bueno in southern Chile treated for unilateral third molar extraction between March and June 2014. The instrument was applied by phone survey on the first, third, fifth, and seventh days after surgery. For the ordinal scale, the response was considered interference in the quality of life when patients selected the options “quite a bit of trouble” or “lots of trouble” for oral function and general activity; and selected complications-related signs and symptoms, a pain level score with a Verbal Rating Scale (range 0 to 7, and worst pain perceived. The patient’s sociodemographic data, type of surgery, and the quality of life level were analyzed according to the domains of the HRQOL-sp instrument. Results: A total of 106 patients were selected (age: 20.4±7.39 years; 71.7% women and a total of 127 extracted third molars. On the first day of follow-up, most patients reported interference in their quality of life. The main problems were difficulty opening the mouth (50.94% and swelling (83.02%. The worst symptom perceived was “bad breath” (>31% and the worst pain felt was a mean of 4.31±1.62 on the Verbal Rating Scale. All items gradually reduced until the seventh day. Conclusion: The

  17. Service quality and asymmetric information in the regulation of monopolies: The Chilean electricity distribution industry

    Science.gov (United States)

    Melo, Oscar Alfredo

    This study is an enquiry about the role that service quality, asymmetric information, scope of regulation and regulator's preferences play in the regulation of monopolies, with an application to the case of the Chilean electricity distribution industry. In Chapter 1, I present the problem of regulating a monopolist and introduce the special conditions that the electricity sector has. Later I discuss the main characteristics of the electricity system that operates in Chile. The literature on regulation is reviewed in Chapter 2. A special emphasis is given to the problems of quality and information, and the lack of its proper joint treatment. In Chapter 3, I develop four theoretical models of regulation that explicitly consider the regulation of price and quality versus price-only regulation, and a symmetric versus asymmetric information structure where only the regulator knows its true costs. In these models, I also consider the effect of a regulator that may have a preference between consumers and the regulated monopolistic firms. I conclude that with symmetric information and independent of the scope of regulation, having a regulator that prefers consumers or producers does not affect the efficiency of the outcome. I also show that the regulator's inability to set quality, thus regulating only price, leads to an inefficient outcome, away from the first best solution that can be achieved by regulating both price and quality, even with asymmetric information, as long as the regulator does not have a "biased" preference for consumers or the monopolistic producers. If the regulator has a "bias," then the equilibrium will be inefficient with asymmetric information. But the effect on equilibrium price and quality depends on the direction of the effect of quality on the marginal effect of price in demand. More importantly, no closed-form solution can be derived unless drastic simplifications are made. To further investigate the outcome of the models, I use numerical

  18. Population structure, growth and production of a recent brachiopod from the Chilean fjord region

    KAUST Repository

    Baumgarten, Sebastian

    2013-12-04

    Magellania venosa, the largest recent brachiopod, occurs in clusters and banks in population densities of up to 416 ind m-2 in Comau Fjord, Northern Chilean fjord region. Below 15 m, it co-occurs with the mytilid Aulacomya atra and it dominates the benthic community below 20 m. To determine the question of why M. venosa is a successful competitor, the in situ growth rate of the brachiopod was studied and its overall growth performance compared with that of other brachiopods and mussels. The growth in length was measured between February 2011 and March 2012 after mechanical tagging and calcein staining. Settlement and juvenile growth were determined from recruitment tiles installed in 2009 and from subsequent photocensus. Growth of M. venosa is best described by the general von Bertalanffy growth function, with a maximum shell length (L∞) of 71.53 mm and a Brody growth constant (K) of 0.336 year-1. The overall growth performance (OGP index = 5.1) is the highest recorded for a rynchonelliform brachiopod and in the range of that for Mytilus chilensis (4.8-5.27), but lower than that of A. atra (5.74). The maximal individual production (PInd) is 0.29 g AFDM ind-1 year-1 at 42 mm shell length and annual production ranges from 1.28 to 89.25 g AFDM year-1 m-2 (1-57% of that of A. atra in the respective fjords). The high shell growth rate of M. venosa, together with its high overall growth performance may explain the locally high population density of this brachiopod in Comau Fjord. However, the production per biomass of the population (P/B--ratio) is low (0.535) and M. venosa may play only a minor role in the food chain. Settling dynamics indicates that M. venosa is a pioneer species with low juvenile mortality. The coexistence of the brachiopod and bivalve suggests that brachiopod survival is affected by neither the presence of potential brachiopod predators nor that of space competitors (i.e. mytilids).

  19. Chromosomal characterization of cultured populations of Chilean coho salmon (Oncorhynchus kistuch

    Directory of Open Access Journals (Sweden)

    Nelson Colihueque V.

    1999-03-01

    Full Text Available Chromosomal characterization of coho salmon samples from three fish farms in southern Chile (Polcura, Castro and Coyhaique was carried out in order to compare their chromosome constitutions. All populations had a 2n = 60; however, Polcura and Coyhaique had a different chromosome arm number (NF = 110; 40m + 10sm + 10st/t than Castro (NF = 108; 40m + 8sm + 12st/t. Variation in NF was due to chromosome pair 25, which was submetacentric in Coyhaique and Polcura, but subtelocentric in Castro. In all karyotypes, a large submetacentric chromosome pair exhibited an interstitial secondary constriction in the short arm. The observed variability in chromosome arm number agrees with previous reports for O. kisutch, and in this particular case it seemed to be caused by a pericentric inversion of pair 25. Cultured populations of Chilean coho salmon are, therefore, likely to be cytogenetically variable.A caracterização cromossômica de amostras de salmon tipo coho de três criações de peixes do sul do Chile (Polcura, Castro e Coyhaique foi feita com a intenção de comparar suas constituições cromossômicas. Todas as populações apresentaram 2n = 60; contudo, Polcura e Coyhaique tiveram um número de braços cromossômicos (NF = 110; 40m + 10sm + 10st/t diferente de Castro (NF = 108; 40m + 8sm + 12st/t. A variação no NF deveu-se ao par cromossômico 25, que era submetacêntrico em Coyhaique e Polcura e subtelocêntrico em Castro. Em todos os cariótipos, um grande par cromossômico submetacêntrico exibiu uma constrição secundária intersticial no braço curto. A variabilidade observada no número de braços cromossômicos concorda com relatos prévios para O. kisutch e, neste caso particular, parece ter sido causada por uma inversão pericêntrica no par 25. Portanto, populações cultivadas de salmão chileno do tipo coho provavelmente são citogeneticamente variáveis.

  20. Discurso y Pensamiento en el Aula Matemática Chilena Discourse and Thought in the Chilean Mathematics Classroom

    Directory of Open Access Journals (Sweden)

    David Preiss

    2011-11-01

    Full Text Available Este estudio tuvo por objetivo explorar la naturaleza de los procesos de pensamiento matemático presentes en el discurso de profesoras y profesores que enseñan en el segundo ciclo de educación básica de escuelas públicas en Chile. Se codificaron 77 videos de clases de profesores participantes en el Sistema de Evaluación Nacional Docente del Gobierno de Chile, en base a una rúbrica que distinguía 4 formas de pensamiento matemático: resolución mecánica de problemas, resolución razonada de problemas, presentación mecánica de la información y presentación razonada de la información. Se realizaron análisis descriptivos y análisis multivariados de varianza. Los resultados evidencian que el pensamiento matemático docente está focalizado en la presentación mecánica de información y la resolución mecánica de problemas. Los profesores que enseñan en 5° y 6° grado dedican significativamente menos tiempo a resolución de problemas que los profesores que enseñan en 7° y 8° grado. Los resultados son coherentes con evidencia proveniente de otros estudios que muestran la adherencia de los profesores chilenos a una pedagogía intuitiva externalista, centrada en la práctica repetida de procedimientos.The goal of this study was to explore the nature of the processes of mathematical thinking evidenced in the discourse of teachers working at Chilean middle-school level public schools. Seventy seven classroom videos filmed as a part of the Chilean Government National Teaching Assessment System were coded according to a rubric that distinguished 4 forms of mathematical thinking: mechanic problem solving, reasoned problem solving, mechanic information presentation, and reasoned information presentation. Descriptive analysis and multivariate analyses of variance were performed. The results evidence that teachers' mathematical thinking is focused on mechanic information presentation and mechanic problem solving. Teachers working in 5th

  1. Some effects of the venom of the Chilean spider Latrodectus mactans on endogenous ion-currents of Xenopus laevis oocytes.

    Science.gov (United States)

    Parodi, Jorge; Romero, Fernando; Miledi, Ricardo; Martínez-Torres, Ataúlfo

    2008-10-31

    A study was made of the effects of the venom of the Chilean spider Latrodectus mactans on endogenous ion-currents of Xenopus laevis oocytes. 1 microg/ml of the venom made the resting plasma membrane potential more negative in cells voltage-clamped at -60 mV. The effect was potentially due to the closure of one or several conductances that were investigated further. Thus, we determined the effects of the venom on the following endogenous ionic-currents: (a) voltage-activated potassium currents, (b) voltage-activated chloride-currents, and (c) calcium-dependent chloride-currents (Tout). The results suggest that the venom exerts its action mainly on a transient outward potassium-current that is probably mediated by a Kv channel homologous to shaker. Consistent with the electrophysiological evidence we detected the expression of the mRNA coding for xKv1.1 in the oocytes.

  2. [The meaning of hysterectomy for a group of Chilean men partners of women who have undergone hysterectomy].

    Science.gov (United States)

    Gutiérrez, Alejandra Araya; Soto, María-Teresa Urrutia; Suazo, Daniel Jara; Solovera, Sergio Silva; Salas, María Jesús Lira; Espinoza, Claudia Flores

    2012-12-01

    The objective of this study was to understand the meaning of hysterectomy according to a group of Chilean men, partners of women who have undergone the procedure (MPWH). This qualitative study was performed with in-depth interviews. A total of 15 men, partners of women who have undergone hysterectomy, were interviewed between May and September of 2010, under the approval of the Ethics Committees. Data analysis was performed using the phenomenological perspective proposed by Giorgi, and content analysis was performed according to Krippendorff. The Crestwell criteria were used to evaluate the trustworthiness of the analysis and guarantee descriptive validity. Five dimensions emerged, which represented unique aspects of hysterectomy according to the men: symptoms, comments, the attributions of the uterus, concerns and changes in sexuality. It is essential to educate MPWH in terms of the support required by women undergoing hysterectomy. Therefore they should be included in the care plan designed for women undergoing hysterectomy.

  3. Detection of Salmonella enterica in Magellanic penguins (Spheniscus magellanicus) of Chilean Patagonia: evidences of inter-species transmission.

    Science.gov (United States)

    Dougnac, C; Pardo, C; Meza, K; Arredondo, C; Blank, O; Abalos, P; Vidal, R; Fernandez, A; Fredes, F; Retamal, P

    2015-04-01

    Patagonia in southern South America is among the few world regions where direct human impact is still limited but progressively increasing, mainly represented by tourism, farming, fishing and mining activities. The sanitary condition of Patagonian wildlife is unknown, in spite of being critical for the assessment of anthropogenic effects there. The aim of this study was the characterization of Salmonella enterica strains isolated from wild colonies of Magellanic penguins (Spheniscus magellanicus) located in Magdalena Island and Otway Sound, in Chilean Patagonia. Eight isolates of Salmonella were found, belonging to Agona and Enteritidis serotypes, with an infection rate of 0·38%. Resistance to ampicillin, cefotaxime, ceftiofur and tetracycline antimicrobials were detected, and some of these strains showed genotypic similarity with Salmonella strains isolated from humans and gulls, suggesting inter-species transmission cycles and strengthening the role of penguins as sanitary sentinels in the Patagonian ecosystem.

  4. Determination of reactions between free radicals and selected Chilean wines and transition metals by ESR and UV-vis technique

    Science.gov (United States)

    Espinoza, Mónica; Olea-Azar, Claudio; Speisky, Hernán; Rodríguez, Jorge

    2009-01-01

    Four different types of Chilean wines (Cabernet Sauvignon, Merlot, Carmenere and Syrah) were selected and examined in their free radical scavenging capacities by electron spin resonance (ESR) and spectrophotometric methods. The free radical scavenging properties were evaluated against 2,2-diphenyl-1-picrylhydrazyl (DPPH rad ) radical, 2,6-di- tert-butyl-alpha-(3,5-di- tert-butyl-4-oxo-2,5-cyclohexadien-1-ylidene)- p-tolyloxy (Galvinoxyl) radical and hydroxyl radical (HO rad ). The possible effect on these scavenging properties of added transition metals to these wines was evaluated. Among the wines evaluated, Cabernet Sauvignon was the one with the highest activity against all radicals tested. The presence of added copper or iron to wines resulted in a reduced free radical scavenging capacity for all type of wines studied. The formation of redox inactive complexes between polyphenols of wine and transition metals is the possible cause of this reduction in antioxidant activity.

  5. Associations between sociocultural pressures to be thin, body distress, and eating disorder symptomatology among Chilean adolescent girls.

    Science.gov (United States)

    Caqueo-Urízar, Alejandra; Ferrer-García, Marta; Toro, José; Gutiérrez-Maldonado, José; Peñaloza, Claudia; Cuadros-Sosa, Yasna; Gálvez-Madrid, Ma José

    2011-01-01

    This study explored the relationships between perceived sociocultural pressure to fulfill the thin beauty ideal, body distress, and the presence of eating disorder symptoms. Participants were 437 Chilean adolescent girls from Arica, northern Chile, aged 13-18. Results showed significant associations between perceived pressure from social agents to be thin and the presence of disrupted eating attitudes and behavior. The perceived influence of advertising, verbal messages and social situations related to eating and dieting emerged as the strongest predictors of eating disorders symptoms. Influence of advertising was also the strongest predictor of body image distress. Age differences emerged in perceived sociocultural pressure to be thin, with older participants reporting higher sociocultural pressure to fulfill the slender beauty ideal. This paper provides information about body distress and associated disturbances, a phenomenon which has seldom been studied in non-Western countries, but which has important health implications.

  6. Association between alleles of the transforming growth factor alpha locus and cleft lip and palate in the Chilean population

    Energy Technology Data Exchange (ETDEWEB)

    Jara, L.; Blanco, R.; Chiffelle, I. [Univ. of Chile, Santiago (Chile)] [and others

    1995-07-17

    Two RFLPs at the TGFA locus were studied in 39 unrelated Chilean (Caucasoid-Mongoloid) patients with non-syndromic cleft lip/palate [CL(P)] and 51 control individuals. A highly significant association between BamHI A2 allele and CL(P) was detected ({chi}{sub 2} = 6.00; P = 0.014), while no association was found between TaqI RFLPs and clefting. No significant differences were found when comparing genotypes by type of cleft and a positive or negative family history of clefting. Our results seem to support rather definitively the association between TGFA and clefting but not support the hypothesis that TGFA is a major causal gene of CL(P). 29 refs., 5 tabs.

  7. Latitudinal environmental niches and riverine barriers shaped the phylogeography of the Central Chilean endemic Dioscorea humilis (Dioscoreaceae.

    Directory of Open Access Journals (Sweden)

    Juan Viruel

    Full Text Available The effects of Pleistocene glaciations and geographical barriers on the phylogeographic patterns of lowland plant species in Mediterranean-climate areas of Central Chile are poorly understood. We used Dioscorea humilis (Dioscoreaceae, a dioecious geophyte extending 530 km from the Valparaíso to the Bío-Bío Regions, as a case study to disentangle the spatio-temporal evolution of populations in conjunction with latitudinal environmental changes since the Last Inter-Glacial (LIG to the present. We used nuclear microsatellite loci, chloroplast (cpDNA sequences and environmental niche modelling (ENM to construct current and past scenarios from bioclimatic and geographical variables and to infer the evolutionary history of the taxa. We found strong genetic differentiation at nuclear microsatellite loci between the two subspecies of D. humilis, probably predating the LIG. Bayesian analyses of population structure revealed strong genetic differentiation of the widespread D. humilis subsp. humilis into northern and southern population groups, separated by the Maipo river. ENM revealed that the ecological niche differentiation of both groups have been maintained up to present times although their respective geographical distributions apparently fluctuated in concert with the climatic oscillations of the Last Glacial Maximum (LGM and the Holocene. Genetic data revealed signatures of eastern and western postglacial expansion of the northern populations from the central Chilean depression, whereas the southern ones experienced a rapid southward expansion after the LGM. This study describes the complex evolutionary histories of lowland Mediterranean Chilean plants mediated by the summed effects of spatial isolation caused by riverine geographical barriers and the climatic changes of the Quaternary.

  8. APOA5 Q97X Mutation Identified through homozygosity mapping causes severe hypertriglyceridemia in a Chilean consanguineous family

    Directory of Open Access Journals (Sweden)

    Dussaillant Catalina

    2012-11-01

    Full Text Available Abstract Background Severe hypertriglyceridemia (HTG has been linked to defects in LPL, APOC2, APOA5, LMF1 and GBIHBP1 genes. However, a number of severe HTG cases are probably caused by as yet unidentified mutations. Very high triglyceride plasma levels (>112 mmol/L at diagnosis were found in two sisters of a Chilean consanguineous family, which is strongly suggestive of a recessive highly penetrant mutation. The aim of this study was to determine the genetic locus responsible for the severe HTG in this family. Methods We carried out a genome-wide linkage study with nearly 300,000 biallelic markers (Illumina Human CytoSNP-12 panel. Using the homozygosity mapping strategy, we searched for chromosome regions with excess of homozygous genotypes in the affected cases compared to non-affected relatives. Results A large homozygous segment was found in the long arm of chromosome 11, with more than 2,500 consecutive homozygous SNP shared by the proband with her affected sister, and containing the APOA5/A4/C3/A1 cluster. Direct sequencing of the APOA5 gene revealed a known homozygous nonsense Q97X mutation (p.Gln97Ter found in both affected sisters but not in non-affected relatives nor in a sample of unrelated controls. Conclusion The Q97X mutation of the APOA5 gene in homozygous status is responsible for the severe hypertriglyceridemia in this family. We have shown that homozygosity mapping correctly pinpointed the genomic region containing the gene responsible for severe hypertriglyceridemia in this consanguineous Chilean family.

  9. Molecular typing and genetic environment of the blaKPC gene in Chilean isolates of Klebsiella pneumoniae.

    Science.gov (United States)

    Barría-Loaiza, Carla; Pincheira, Andrea; Quezada, Mario; Vera, Alejandra; Valenzuela, Pedro; Domínguez, Mariana; Lima, Celia A; Araya, Ingrid; Araya, Pamela; Prat, Soledad; Aguayo, Carolina; Fernández, Jorge; Hormazábal, Juan Carlos; Bello-Toledo, Helia; González-Rocha, Gerardo

    2016-03-01

    The aim of this work was to determine the genetic environment and transferability of blaKPC as well as the pulsotypes of KPC-producing Klebsiella pneumoniae strains isolated from clinical samples in Chilean hospitals. Seventeen strains, principally isolated in Santiago (the capital of Chile) during the years 2012 and 2013, were included. The genetic environment of blaKPC was elucidated by PCR mapping and sequencing. Molecular typing was performed by pulsed-field gel electrophoresis (PFGE) and multilocus sequence typing (MLST). Curing and conjugation experiments were performed with six strains of different sequence types (STs) and pulsotypes. Thirteen pulsotypes and six STs, mainly belonging to clonal complex 258, were found. In addition, seven strains belonged to a new ST assigned ST1161. The blaKPC sequence indicated that 16 strains had the KPC-2 variant; in only one strain (UC331) an amino acid change (R6P) was detected, corresponding to a new KPC variant designated KPC-24. Molecular characterisation of the blaKPC genetic environment revealed two distinct platforms, namely variant 1a and the Tn4401a isoform, with the first being the most common (11/17 strains). Mating experiments failed to produce transconjugants; however, loss of blaKPC was achieved by plasmid curing in all assayed strains. In conclusion, in Chilean strains of K. pneumoniae, blaKPC is primarily found associated with the variant 1a and is located in non-transferable plasmids. In addition, this study highlights the description of the new ST1161 and the new KPC-24 variant.

  10. Adaptation and validation of Child Oral Impact on Daily Performance index in 11- 14-year-old Chilean school children.

    Directory of Open Access Journals (Sweden)

    Constanza Vera

    2013-12-01

    Full Text Available The health condition of a population is often rated through clinical indicators. However, the psychological and social impact of diseases on quality of life has been noticed of late. Objective: to adapt, in cultural terms, the Child- Oral Impact on Daily Performance (C-OIDP questionnaire in its self- administered form and evaluate its psychometric properties among Chilean teenagers aged 11-14 from the city of Licantén, Chile, in 2013. Methodology: A cross-sectional study on scales validation. Face validity was determined by experts opinion, criterion validity by correlation with measures of self-rated health and dental treatment needs, internal consistency using the Cronbach's alpha, and temporal stability using the intraclass correlation coefficient (ICC for test- retest within a 10-day window. The sample consisted of 203 students aged 11 to 14 years from the urban sector of Licantén city. Results: Five experts determined proper face validity of the C-OIDP scale. Regarding criterion validity, statistically significance association (p<0.05 were found, positive for treatment need and negative for oral health satisfaction. Internal consistency scale showed an alpha=0.719, all items showed correlations of 0.32 to 0.54 with the rest of the scale. The temporal stability gave an ICC=0.82. . Conclusion: the cultural adaptation of the self-administered C-OIDP questionnaire for Chilean students aged 11 to 14 years showed adequate psychometric properties, so it is a valid and reliable instrument to measure the oral health impact on quality of life in this population.

  11. Oral mucosal lesions in a Chilean elderly population: A retrospective study with a systematic review from thirteen countries

    Science.gov (United States)

    Droguett, Daniel; Arenas-Márquez, María-Jesús

    2017-01-01

    Background The oral examination is an essential part of the multidisciplinary medical care in elderly people. Oral mucosal lesions and normal variations of oral anatomy (OMLs) are very common in this people, but few studies have examined the frequency and prevalence of these conditions worldwide and less in Chile. The aim of this research was to evaluate the frequency of OMLs in a Chilean elderly population. Material and Methods It was conducted a retrospective study (Talca, Chile). Two hundred seventy-seven OMLs were classified in groups and anatomical sites. In order to contextualize our numbers, we made a systematic review using Publish or Perish software, Google Scholar and InteractiVenn. Results The most prevalent OMLs groups were soft tissue tumors, epithelial pathology, facial pain and neuromuscular diseases, and dermatologic diseases. The most frequent OMLs included irritation fibroma (30 patients, 10.8%), hemangioma (20, 7.2%), burning mouth syndrome (20 cases, 7.2%), oral lichen planus (12, 4.3%) and epulis fissuratum (12, 4.3%). In the systematic review, 75 OMLs were relevant and the more studied pathologies were traumatic ulcerations (11 of 15 articles), oral lichen planus (10/15), irritation fibroma, melanotic pigmentations, and recurrent aphthous stomatitis (9/10, respectively). Considering all included articles, most frequent OMLs in elderly people included denture-related stomatitis (13.3%), irritation fibroma (8.7%) and fissured tongue (6.3%). Conclusions The results reflect the frequency of OMLs diagnosed in a specialized service in south of Chile and many countries around the world. These numbers will allow the establishment of preventive politics and adequacy of the clinical services. Key words:Oral mucosal lesions, elderly people, Chilean population, frequency, systematic review. PMID:28210449

  12. Choice of electronic v/s printed documents by southern Chilean dental students.

    Directory of Open Access Journals (Sweden)

    Karen Schulz

    2014-06-01

    Full Text Available ABSTRACT In recent decades, the use of digital texts has replaced printed documents. This has generated changes in the way texts are presented and diffused as well as the students’ choice and the way of reading materials related to medicine. While some reports have evaluated the use of digital compared to print formats, there is no evidence about dental students’ preferences. The objective of this study is to determine preferences among dental students from six universities in the south of Chile for using printed versus electronic documents. A descriptive study based on a survey which was conducted among dental students in May and June, 2013, was designed. The proposed survey was adapted for collecting general student data and preferences for using electronic or traditional printed documents. Six schools and a total of 1,022 students, with an average age of 21.4 years, participated. A 93.3% of them reported using both types of documents. However, a 59.7% preferred printed documents. Only a 9.3% read documents directly from an electronic device. Students overwhelmingly preferred using printed documents than the electronic type. It is imperative to investigate the impact of new learning technologies in Chilean dental education. RESUMEN El uso de textos en formato digital ha reemplazado en las últimas décadas el uso de documentos impresos, generando cambios en la disposición y difusión de éstos como también en la elección de los estudiantes y la forma de lectura de materias relacionadas con la medicina. Si bien existen reportes que valoran el uso de formato digital en comparación a textos impresos, no existe evidencia de las preferencias en estudiantes de Odontología. El objetivo de este estudio es determinar la preferencia de uso de documentos en formato impreso versus electrónico en estudiantes de odontología de seis universidades del sur de Chile. Se diseñó un estudio descriptivo basado en una encuesta aplicada a estudiantes de

  13. Socio-demographic characteristics and career choices amongst Chilean dental students.

    Directory of Open Access Journals (Sweden)

    Karla Gambetta

    2014-06-01

    Full Text Available ABSTRACT This cross-sectional study aimed to explore the socio-demographic and career choice characteristics of dental students in two publicly funded universities in Chile. A total of 601 dental students participated in the study with a 53% response rate.The written survey covered age, gender, type of school attended, place of residence, parental occupation, level of education, tuition fees payment methods, along with motivations and preferences towards dentistry as a career. The respondents had an average age of 22 years old. Sixty one percent of respondents were female, and the majority had completed secondary education in private and subsidized schools with only 21.5% having finished in public schools. Most of the students covered their tuition fees with parental money (37.1%, followed by any type of loan (27.9%. The majority of students (63.8% had placed dentistry as their first career choice with self-motivation being the most important reason for their decision. This study provides a description of the socio-demographic and economic profile of Chilean dental students and provides insights about career decision issues. It also purposes areas for further research and management by academics for future program development. RESUMEN El presente estudio descriptivo de corte transversal explora el perfil socio-demográfico y los factores asociados a la elección de la carrera de los estudiantes de odontología pertenecientes a dos universidades estales chilenas. Un total de 601 estudiantes participaron de esta investigación con una tasa de respuesta del 53%.La encuesta escrita incluyó, edad, género, educación secundaria, lugar de residencia, nivel educacional y ocupación de los padres, método de pago junto con las motivaciones y proyecciones de los estudiantes hacia la carrera. Los participantes reportaron una edad promedio de 22 años. Sesenta y un por ciento de los participantes fueron mujeres, y la mayoría terminó la enseñanza media

  14. Testing Democracy’s Promise: Indigenous Mobilization and the Chilean State

    Directory of Open Access Journals (Sweden)

    Patricia Rodríguez

    2008-10-01

    Full Text Available In the early 1990s, Chile’s restored democratic government created a new legal architecture and a new institution, the CONADI (National Corporation for Indigenous Development, in order to improve the historically distant relationship between the state and indigenous groups. To the Mapuche Indians, newly institutionalized principles of constitutional rights, self-determination, and participatory co-governance promised not just more meaningful citizenship, but resolution to longstanding claims of injustice over ancestral land and natural resource claims. This project chronicles the dilution and betrayal of this commitment. In a series of tense conflicts over land, forestry, and hydroelectric power, state officials suppressed indigenous initiatives and implanted their own policy priorities within the new institutions. This experience has deepened the divisions among state actors, private actors, and indigenous communities. Still, important reform currents persist, and Mapuche activists continue to pressure and challenge the state in creative ways. This evolving relationship between the Mapuche and the state presents a vital test of the quality of Chilean democracy.Resumen: Poniendo a prueba la promesa de la democracia: movilizaciones indígenas y el estado chilenoA principios de los años noventa, el gobierno nuevamente democrático de Chile creó una nueva arquitectura jurídica y una nueva institución, la CONADI (Corporación Nacional de Desarrollo Indígena, para mejorar las relaciones históricamente distantes entre el estado y los pueblos indígenas. Para los mapuche, principios de derechos constitucionales institucionalizados recientemente, la autodeterminación, y el cogobierno prometían no solo una ciudadanía más completa, sino también la resolución de prolongados reclamos históricos por la injusticia en cuanto a su acceso a sus tierras ancestrales y recursos naturales. Este trabajo explica la disolución y la traición de esos

  15. Indicators of gender violence in romantic relationships. Case study in chilean adolescents

    Directory of Open Access Journals (Sweden)

    Maria Cruz Sánchez Gómez

    2015-05-01

    Full Text Available The presence of gender violence is increasing alarmingly in our society and has become one of our most serious social problems. The data indicate that the origin of much of this type of behaviour has its roots in early adolescent relationships, in which the presence and repetition of chauvinist patterns and models has been verified. In this paper we assume that this kind of conduct is related to socially accepted behaviours that form part of the normative patterns typical of socialization processes. To analyse this thesis, an interdisciplinary group of researchers from Spanish and Chilean universities    carried out a qualitative study on behaviours associated with gender violence in groups of adolescents and young people from different economic, geographic, social and ethnic contexts in order to gather evidence about the ways adolescents establish romantic or intimate relationships and to determine whether there are any indications of male chauvinist violence against adolescent women. The research design proposed takes as a reference the principles of Grounded Theory and employs the constant comparative method, that is, the information is collected, coded and analysed simultaneously, with theoretical sampling that involves selecting new cases as a function of their potential to help refine or expand the concepts and theories already developed. Thus, the coding of the discourse was carried out using open coding, axial coding and selective coding, and finally grouping the relevant categories or ideas into meta-categories to build the theoretical schema. Participating in the study were 156 adolescents (77 girls and 79 boys residing in the urban area of the Arica region in Chile, having been selected according to the variables “academic year” and “age”. Seventeen discussion groups were formed until data saturation was attained. The findings show that in these first adolescent dating relationships there is an important number of negative

  16. Preference shifts, structural breaks and the domestic demand for Chilean wine

    Directory of Open Access Journals (Sweden)

    Cristián Troncoso-Valverde

    2004-09-01

    Full Text Available This paper investigates possible changes in Chilean domestic consumer preferences for wine through the estimation of a demand function that allows for structural breaks and regime shifts in the cointegrating relationship. Our findings support both higher own-price elasticity and higher substitutability between wine and beer after 1982, when a shift in regime in the demand function is found. We believe our findings might be due to the introduction of an increasing number of wine varieties in Chile during the last two decades. We argue that more wine varieties affect domestic consumer preferences by altering the product diversity available in the domestic market.El presente artículo investiga posibles cambios en las preferencias de los consumidores chilenos de vino por medio de la estimación de una función de demanda que permite quiebres estructurales y cambios de régimen en el vector de cointegración de la misma. Nuestros resultados muestran una alta elasticidad - precio y una mayor sustitución entre vino y cerveza a partir de 1982, fecha en la cual un cambio de régimen en la función de demanda es detectado. Dichos resultados pueden ser atribuidos a la introducción de un creciente número de variedades de vino en Chile en las últimas dos décadas. Así, la introducción de un mayor número de variedades de vino afecta las preferencias de los consumidores chilenos al alterar la variedad de productos disponibles en el mercado chileno de vino.Este artigo investiga possíveis mudanças nas preferências dos consumidores de vinho por meio da estimação de uma função da demanda que permite a ruptura estrutural e a mudança do regime no vetor da co-integração do mesmo. Nossos resultados mostram uma elevada elasticidade - preço e uma maior substituição entre o vinho e a cerveja a partir de 1982, data na qual uma mudança do regime na função da demanda é detectada. Estes resultados podem ser atribuídos à introdução de um n

  17. Fish Stock Endogeneity in a Harvest Function: ‘El Niño’ Effects on the Chilean Jack Mackerel Fishery

    Directory of Open Access Journals (Sweden)

    Sebastián Vergara

    2007-03-01

    Full Text Available There are several examples of pelagic fisheries that have experienced fishing collapse when facing downward abundance cycles. Improving understanding about pelagic catch’s stock dependence can help avoid new cases of fishing collapse. This paper analyses the possible endogeneity of the fish stock variable in a pelagic fishery harvest function. The harvest function is estimated using panel data and ‘El Niño’ episodes as instrumental variable for the Chilean jack mackerel biomass. This strategy produces consistent estimates of the fish biomass coefficient. The paper makes two contributions. First, it corrects for endogeneity of the fish stock variable, an issue often underestimated in empirical fishery economics. Secondly, it shows that ‘El Niño’ episodes have negative effects on the Chilean jack mackerel biomass.

  18. Standardization of CPUE for Chilean Jack Mackerel (Trachurus murphyi) from Chinese Trawl Fleets in the High Seas of the Southeast Pacific Ocean

    Institute of Scientific and Technical Information of China (English)

    LI Gang; ZOU Xiaorong; CHEN Xinjun; ZHOU Yinqi; ZHANG Min

    2013-01-01

    The generalized linear model (GLM) and generalized additive model (GAM) were applied to the standardization of catch per unit effort (CPUE) for Chilean jack mackerel from Chinese factory trawl fishing fleets in the Southeast Pacific Ocean from 2001 to 2010 by removing the operational,environmental,spatial and temporal impacts.A total of 9 factors were selected to build the GLM and GAM,i.e.,Year,Month,Vessel,La Ni(n)a and El Niio events (ELE),Latitude,Longitude,Sea surface temperature (SST),SST anomaly (SSTA),Nino3.4 index and an interaction term between Longitude and Latitude.The first 5 factors were significant components in the GLM,which in combination explained 27.34% of the total variance in nominal CPUE.In the stepwise GAM,all factors explained 30.78% of the total variance,with Month,Year and Vessel as the main factors influencing CPUE.The higher CPUE occurred during the period April to July at a SST range of 12-15℃ and a SSTA range of 0.2-1.0℃.The CPUE was significantly higher in normal years compared with that in La Ni(n)a and E1 Ni(n)o years.The abundance of Chilean jack mackerel declined during 2001 and 2010,with an increase in 2007.This work provided the relative abundance index of Chilean jack mackerel for stock assessment by standardizing catch and effort data of Chinese trawl fisheries and examined the influence of temporal,spatial,environmental and fisheries operational factors on Chilean jack mackerel CPUE.

  19. Evaluation of the antibacterial activity of Chilean plants traditionally used for wound healing therapy against multidrug-resistant Staphylococcus aureus

    DEFF Research Database (Denmark)

    Holler, Jes Gitz; Søndergaard, Karen; Slotved, Hans-Christian

    2012-01-01

    Anti-staphylococcal activity of Chilean medicinal plants traditionally used by the Huilliche people for wound healing therapy was evaluated against nine STAPHYLOCOCCUS AUREUS strains. Three extracts of 26 plant samples (20 species) were evaluated by agar overlay bioautography and MIC determination...... of Huilliche medicinal plants and the hypothesis that these plants are promising sources of potential anti-staphylococcal agents towards multidrug-resistant strains....

  20. Effectiveness of a normative nutrition intervention (diet, physical activity and breastfeeding) on maternal nutrition and offspring growth: the Chilean maternal and infant nutrition cohort study (CHiMINCs).

    OpenAIRE

    Garmendia, ML; Corvalan, C; Araya, M.; Casanello, P; Kusanovic, JP; Uauy, R

    2015-01-01

    Background Maternal obesity before and during pregnancy predicts maternal and infant risks of obesity and its associated metabolic conditions. Dietary and physical activity recommendations during pregnancy as well as weight monitoring are currently available in the Chilean primary health care system. However some of these recommendations are not updated and most of them are poorly implemented. We seek to assess the effectiveness of an intervention that enhances the implementation of updated n...

  1. La familia Hemiaulaceae (Bacillariophyceae de las aguas marinas chilenas The family Hemiaulaceae (Bacillariophyceae from marine Chilean waters

    Directory of Open Access Journals (Sweden)

    PATRICIO RIVERA

    2003-12-01

    with light and electron microscopy of marine samples from along the Chilean coast and the Antarctic Peninsula (including those used in earlier publications revealed that (1 the genus Cerataulina is represented by C. pelagica, and is distributed along the Chilean coast between Arica in the north and the Magellan Strait in the south, (2 the genus Eucampia comprises four taxa: E. zodiacus f. cylindrocornis Syvertsen (previously reported for Chile as E. zodiacus f. zodiacus, E. zodiacus f. recta Rivera, Avaria & Cruces (described here, E. cornuta and E. antarctica. The former three taxa occur in the central and northern coast of Chile, while E. antarctica lives in Antarctic waters south of the Magellan Strait, (3 earlier records of Hemialus membranaceus, H. sinensis and Climacodium biconcavum in Chilean waters are misidentifications of Eucampia zodiacus f. recta Rivera & Avaria f. nov. A short description is included for each taxon, and photographs provide information about the main morphological characteristics

  2. Seismic Moment and Slip Distribution of the 1960 and 2010 Chilean Earthquakes as Inferred from Tsunami Waveforms

    Science.gov (United States)

    Satake, K.; Fujii, Y.

    2010-12-01

    The 27 February 2010 Chilean earthquake generated tsunami and caused significant damage on the Chilean coast. The tsunami was recorded at many tide gauge stations around the Pacific Ocean, as well as bottom ocean bottom pressure gauges of DART system. We inverted tsunami waveform data, recorded at 11 tide gauges in Chile and Peru and 4 nearby DART stations, to estimate the slip distribution on the fault. When we assume 36 subfaults (12 along strike by 3 downdip, size of each subfault is 50 km × 50 km), very large slip is located at the most downdip subfaults beneath coast and land. Tsunami waveforms recorded other DART stations also require such deep slips. However, other geodetic and seismic data do not show such deep slips, and tsunami data have limited resolution for such a deep onshore slip. We therefore used coastal uplift and subsidence data at 36 locations reported by Farias et al. (2010). The joint inversion indicates two asperities, one to the north around Constitucion and the other to the south around Arauco peninsula. While the largest slip is still located beneath the coast, the offshore slips generally become larger than the tsunami inversion. The total seismic moment is about 1.8 × 1022 Nm (Mw 8.8), similar to the value estimated from tsunami waveforms only, and the fault length is 450 km. For the 22 May 1960 Chilean earthquake, we first made an inversion of tsunami data, recorded at 12 tide gauge stations mostly in South America. When we assume 27 subfaults (9 along strike by 3 downdip, size of each subfault is 100 km × 50 km), the total seismic moment is 4.6 × 1022 Nm (Mw 9.0). Again, the largest slip is estimated at the deepest subfault beneath land near the epicenter, which would produce large coastal uplift where the coastal subsidence was reported by Plafker and Savage (1970). Poor station coverage of tide gauges may limit the resolution of slip distribution particularly at the southern part of the source area. We therefore made a joint

  3. Contemporary ice-elevation changes on central Chilean glaciers using SRTM1 and high-resolution DEMs

    Science.gov (United States)

    Vivero, Sebastian; MacDonell, Shelley

    2016-04-01

    Glaciers located in central Chile have undergone significant retreat in recent decades. Whilst studies have evaluated area loss of several glaciers, there are no detailed studies of volume losses. This lack of information restricts not only estimations of current and future contributions to sea level rise, but also has limited the evaluation of freshwater resource availability in the region. Recently, the Chilean Water Directorate has supported the collection of field and remotely sensed data in the region which has enabled glacier changes to be evaluated in greater detail. This study aims to compare high-resolution laser scanning DEMs acquired by the Chilean Water Directorate in April 2015 with the recently released SRTM 1 arc-second DEM (˜30 m) acquired in February 2000 to calculate geodetic mass balance changes for three glaciers in a catchment in central Chile over a 15-year period. Detailed analysis of the SRTM and laser scanning DEMs, together with the glacier outlines enable the quantification of elevation and volume changes. Glacier outlines from February 2000 were obtained using the multispectral analysis of a Landsat TM image, whereas outlines from April 2015 were digitised from high resolution glacier orthophotomosaics. Additionally, we accounted for radar penetration into snow and/or ice by evaluating elevation differences between SRTM C-and X-bands, as well as mis-registration between SRTM DEM and the high-resolution DEMs. Over the period all glaciers show similar ice wastage in the order of 0.03 km3 for the debris-covered and non-covered glaciers. However, whilst on the non-covered glaciers mass loss is largely related to elevation and the addition of surface sediment, on the debris-covered glacier, losses are related to the development of thermokarst features. By analysing the DEM in conjunction with Landsat images, we have detected changes in the sediment cover of the non-covered glaciers, which is likely to change the behaviour of the surface mass

  4. Subduction processes off chile (SPOC) - results from The amphibious wide-angle seismic experiment across The chilean subduction zone

    Science.gov (United States)

    Lueth, S.; Spoc Resaerch Group

    2003-04-01

    One component of the onshore-offshore, active-passive seismic experiment SPOC (Krawczyk et al., Stiller et al., this vol.) was a 2-D wide-angle seismic experiment covering the Chilean subduction zone from the Nazca Plate to the Magmatic Arc in the main cordillera. Three W-E-profiles of 52 stations each and up to 240 km long were deployed between 36° and 39° S. These profiles recorded chemical shots at their ends and, in order to extend the onshore profiles, the airgun pulses from RV SONNE cruising simultaneously on offshore profiles. On the southernmost of the three profiles OBHs/OBSs were deployed offshore, thus providing continuous wide-angle seismic data from the Nazca Plate to the South-American continent. Data examples, correlations, and velocity models along the three transects will be presented. The Moho of the subducted oceanic crust can be constrained by PmP-reflections down to 45 km depth under the coastal cordillera. The P-wave velocity field of the crust of the upper plate is characterized by gradually increasing P-wave velocities from East to West. Low seismic velocities (Vp ~6.5 km/s below 10 km depth) are observed at the eastern margin of the investigated area.

  5. Venom of the Chilean Latrodectus mactans alters bovine spermatozoa calcium and function by blocking the TEA-sensitive K(+) current.

    Science.gov (United States)

    Navarrete, Patricia; Martínez-Torres, Ataúlfo; Gutiérrez, Raúl Sánchez; Mejía, Fernando Romero; Parodi, Jorge

    2010-08-01

    The morphology and size of spermatozoa make it difficult to study the functional properties of the plasma membrane, however, some studies have revealed the presence of a number of ion channels in this cell. We measured the calcium (Ca(++)) influx induced by depolarization of the plasma membrane and by venom isolated from the Chilean black widow spider (Latrodectus mactans), and functional changes in the presence of either high potassium or total venom. Our results indicate that the venom increased the Ca(++) influx, with an EC50 of 6.1 microg/mL and triggering the acrosome reaction in 43.26% of the cells. The application of potassium (10 mM K(+)) or total venom (10 microg/mL) did not affect the morphology or DNA stability of the sperm. The effects induced by high K(+) and venom suggest that direct blocking of K(+) currents alters the passive properties of the plasma membrane, leading to the entry of Ca(++). These results show the importance of functional changes induced by depolarizing the spermatozoa and by venom. This venom possesses one or more molecules that may be used as pharmacological tools for studies on spermatozoa and have potential applications in reproductive biotechnology.

  6. Tetraethylammonium-sensitive K(+) current in the bovine spermatozoa and its blocking by the venom of the Chilean Latrodectus mactans.

    Science.gov (United States)

    Parodi, Jorge; Navarrete, Patricia; Marconi, Marcelo; Gutiérrez, Raúl Sánchez; Martínez-Torres, Ataúlfo; Mejías, Fernando Romero

    2010-02-01

    The morphology and size of spermatozoa hinder the study of the functional properties of the spermatozoa plasma membrane. However, some studies have revealed the presence of a number of ion channels in this cell. We set out to measure the endogenous currents and to study the effect of the venom of the Chilean black widow spider (Latrodectus mactans). By patch-clamping bovine spermatozoa our results indicate the presence of an outwardly rectifying current, sensitive to changes in K(+) concentration (30-140 mM) and to tetraethylammonium (TEA, 10-100 mM). The application of the venom (7.5 microg/ml) blocks these K+ currents and then alters the passive properties of the plasma membrane. This leads to the entry of Ca(++), reflected by a change in basal fluorescent units (5+/-2 at 35+/-10 FAU). The Ca(++) influx follows a reduction in the membrane conductance (control 22+/-2; venom 10+/-1 pS), as calcium channels open in accord with voltage dependence.

  7. Agricultural subsidies in the United States and their effect on two annual Chilean crops: corn and wheat

    Directory of Open Access Journals (Sweden)

    José Díaz Osorio

    2006-09-01

    Full Text Available The development strategies for Chile have been oriented toward a greater commercial openness. Chile and the United States signed a Free Trade Agreement (FTA that has triggered controversies between producers directed to the internal market due to the production and export subsidies that this country carries out. This study analyzed the effect of subsidies granted by the United States to wheat (Tritricum aestivum and corn (Zea mays growers (Farm Bill 2002. For the study, Technical Standard sheet were drawn up, from which were determined the direct production costs and the gross margins. The variables used (market prices, subsidies, freight costs and tariffs and determining the average variable costs allowed us to do a sensitivity analysis, thus establishing the minimum level of production that national farmers must achieve in order to maintain competitiveness while a free trade is in force. The signing of a trade agreement could provoke the eventual withdrawal of many Chilean producers from the business arena while at the same time, favoring consumers with lower prices for the goods derived from these grains.

  8. [Psychosocial risks, quality of employment, and workplace stress in Chilean wage-earning workers: a gender perspective].

    Science.gov (United States)

    Ansoleaga, Elisa; Díaz, Ximena; Mauro, Amalia

    2016-07-21

    This study aimed to estimate the prevalence of work-related stress in Chile and its association with exposure to workplace psychosocial risks and quality of employment, considering gender differences. The cross-sectional study included a representative probabilistic national sample of 3,010 salaried workers (1,486 women and 1,524 men). Eighteen percent reported work-related stress (23.8% of women and 14.8% of men). People exposed to psychosocial risks had a higher probability of experiencing stress, and women were more likely to suffer stress than men. Women and men in precarious work showed increased likelihood of distress, compared to workers with less precarious jobs. However, women in precarious jobs were more likely to suffer stress than men in the same situation. The study concluded that women had more precarious jobs, experienced greater exposure to psychosocial risks, and suffered more stress than men. This is evidence of double discrimination (social and gender-based) in the Chilean labor market.

  9. Novel splice-affecting variants in CYP27A1 gene in two Chilean patients with Cerebrotendinous Xanthomatosis

    Directory of Open Access Journals (Sweden)

    Susan V. Smalley

    2015-03-01

    Full Text Available Cerebrotendinous Xanthomatosis (CTX, a rare lipid storage disorder, is caused by recessive loss-of-function mutations of the 27-sterol hydroxylase (CYP27A1, producing an alteration of the synthesis of bile acids, with an accumulation of cholestanol. Clinical characteristics include juvenile cataracts, diarrhea, tendon xanthomas, cognitive impairment and other neurological manifestations. Early diagnosis is critical, because treatment with chenodeoxycholic acid may prevent neurological damage. We studied the CYP27A1 gene in two Chilean CTX patients by sequencing its nine exons, exon-intron boundaries, and cDNA from peripheral blood mononuclear cells. Patient 1 is a compound heterozygote for the novel substitution c.256-1G > T that causes exon 2 skipping, leading to a premature stop codon in exon 3, and for the previously-known pathogenic mutation c.1183C > T (p.Arg395Cys. Patient 2 is homozygous for the novel mutation c.1185-1G > A that causes exon 7 skipping and the generation of a premature stop codon in exon 8, leading to the loss of the crucial adrenoxin binding domain of CYP27A1.

  10. Novel splice-affecting variants in CYP27A1 gene in two Chilean patients with Cerebrotendinous Xanthomatosis.

    Science.gov (United States)

    Smalley, Susan V; Preiss, Yudith; Suazo, José; Vega, Javier Andrés; Angellotti, Isidora; Lagos, Carlos F; Rivera, Enzo; Kleinsteuber, Karin; Campion, Javier; Martínez, J Alfredo; Maiz, Alberto; Santos, José Luis

    2015-03-01

    Cerebrotendinous Xanthomatosis (CTX), a rare lipid storage disorder, is caused by recessive loss-of-function mutations of the 27-sterol hydroxylase (CYP27A1), producing an alteration of the synthesis of bile acids, with an accumulation of cholestanol. Clinical characteristics include juvenile cataracts, diarrhea, tendon xanthomas, cognitive impairment and other neurological manifestations. Early diagnosis is critical, because treatment with chenodeoxycholic acid may prevent neurological damage. We studied the CYP27A1 gene in two Chilean CTX patients by sequencing its nine exons, exon-intron boundaries, and cDNA from peripheral blood mononuclear cells. Patient 1 is a compound heterozygote for the novel substitution c.256-1G > T that causes exon 2 skipping, leading to a premature stop codon in exon 3, and for the previously-known pathogenic mutation c.1183C > T (p.Arg395Cys). Patient 2 is homozygous for the novel mutation c.1185-1G > A that causes exon 7 skipping and the generation of a premature stop codon in exon 8, leading to the loss of the crucial adrenoxin binding domain of CYP27A1.

  11. Chilean experimental version of the State-Trait Depression Questionnaire (ST-DEP: Trait sub-scale (T-DEP

    Directory of Open Access Journals (Sweden)

    Pablo Vera-Villarroel

    2008-01-01

    Full Text Available This instrumental study presents the first validity and reliability data for the Trait subscale (T-DEP of the Chilean experimental version of the State and Trait Depression Inventory (ST-DEP: Euthymia and Dysthymia. The data were obtained from a sample of 300 university students. The internal consistency values for the TDEP were high (.90. The test-retest values from eight weeks time interval (fifty six days were elevated (.78. A factorial analysis of the principal components revealed a principal factor for all of the constructed items in this experimental version of the TDEP. The last, promax rotation showed two clear main factors similar in size: negative affectivity (Dysthymia and positive affectivity (Euthymia. The convergent validity indexes for the Beck Depression Inventory and the Zung Self Rating Depression Scale, were also high, with indexes ranging from .64 to .71. The correlation between State- Trait Anxiety Inventory and the depression scales used in this study was high (between .63 and .78, once again indicating the usual overlapping between anxiety and depression seen in most depression inventories.

  12. Phenolic Compounds in Chilean Mistletoe (Quintral, Tristerix tetrandus Analyzed by UHPLC–Q/Orbitrap/MS/MS and Its Antioxidant Properties

    Directory of Open Access Journals (Sweden)

    Mario J. Simirgiotis

    2016-02-01

    Full Text Available Mass spectrometry has become a method of choice to characterize bioactive compounds in biological samples because of its sensitivity and selectivity. Hybrid ultra-HPLC hyphenated with Orbitrap mass analyzer is an innovative state of the art technology that allows fast and accurate metabolomic analyses. In this work the metabolites of a Chilean mistletoe endemic to the VIII region of Chile were investigated for the first time using UHPLC mass analysis (UHPLC-PDA-HESI-Orbitrap MSn. The anthocyanins, together with the non-pigmented phenolics were fingerprinted and correlated with the antioxidant capacities measured by the bleaching of the DPPH radical, the ferric reducing antioxidant power (FRAP, the superoxide anion scavenging activity assay (SA, and total content of phenolics, flavonoids and anthocyanins measured by spectroscopic methods. Six anthocyanins were identified, and among them, the 3-O-glycosides of delphinidin and cyanidin were the major ones. In addition, several phenolic acids (including feruloylquinic acid, feruloyl glucose, chlorogenic acid and several flavonols (luteolin, quercetin, apigenin, isorhamnetin and glycoside derivatives were also identified. The mistletoe leaves showed the highest antioxidant activity as measured by the DPPH radical bleaching, ferric reducing antioxidant power and superoxide anion scavenging activity tests (13.38 ± 0.47 µg/mL, 125.32 ± 5.96 µmolTE/g DW and 84.06 ± 4.59 at 100 µg/mL, respectively.

  13. Genetic structure of Chilean populations of Seriola lalandi for the diversification of the national aquaculture in the north of Chile

    Directory of Open Access Journals (Sweden)

    Gonzalo Fernández

    2015-05-01

    Full Text Available Seriola lalandi has been recognized as a potential aquaculture species in Chile, however, little is known about the genetic structure of local populations. This is important, as the current production system is based on an initial wild catching and ill management of these stocks can cause reduced genetic variability. To assess the genetic structure of local S. lalandi we evaluated 27 published microsatellite markers developed from genomic libraries of other species of the genera. However only 12 markers could be used to properly assess the populations, most of these markers showed deviations from Hardy-Weinberg equilibrium with moderate inbreeding (F = 0.12. This species tends to show schooling behavior, so in all likelihood mating between relatives within small groups of fish is not unexpected. The population structure was assessed using Structure software, showing the presence of admixture with varying levels of individual ancestry. This was seen in both populations, without significant genetic differentiation. This may be explained by the migratory behavior, with mating between different populations likely to happen in small groups. Management of aquaculture resources is essential to secure a sustainable production system; this study is the first to provide estimates of genetic diversity of Chilean populations of S. lalandi.

  14. INSECTICIDAL ACTIVITY OF PROTEIN EXTRACTS OBTAINED FROM BULBS OF CHILEAN AMARYLLIDACEAE AGAINST TRIALEURODES VAPORARIORUM WESTWOOD AND PSEUDOCOCCUS VIBURNI SIGNORET.

    Science.gov (United States)

    Zapata, N; Vargas, M; Coronado, A; Van Damme, E J M; Smagghe, G

    2015-01-01

    Entomotoxic proteins are produced by plants in defence against insect herbivory. Some carbohydrate-binding proteins exhibit strong insecticidal activity affecting the survival, growth, development and feeding behavior of phytophagous insects. The occurrence of entomotoxic lectins is well documented in the Amaryllidaceae, a plant family spread world-wide. In Chile, this family is represented by numerous species, many of which are also of high ornamental value. Protein extracts were obtained from bulbs of five different species of Chilean Amaryllidaceae. A dose-response assay was carried out with two important pests: the greenhouse whitefly Trialeurodes vaporariorum Westwood and the mealybug Pseudococcus viburni Signoret. The extracts were offered to insects in a liquid artificial diet for three days and the mortality was scored. The Phycella australis Ravenna extract caused the highest insecticidal activity (T. vaporariorum LC₅₀: 7200 µg/mL; P. viburni LC₅₀: 9500 µg/mL). Applied at 1000 µg/mL in the diet the P. australis extract did not repel feeding of these pests. A mannose-binding lectin isolated from the bulbs of P. australis proved to be moderately toxic for these pests (T. vaporariorum LC₅₀: 1127 µg/mL; P. viburni LC₅₀: 2320 µg/mL).

  15. The association of family and peer factors with tobacco, alcohol, and marijuana use among Chilean adolescents in neighborhood context

    Directory of Open Access Journals (Sweden)

    Horner P

    2011-09-01

    Full Text Available Pilar Horner1, Andy Grogan-Kaylor2, Jorge Delva2, Cristina B Bares3, Fernando Andrade4, Marcela Castillo51School of Social Work, Michigan State University, East Lansing, MI, USA; 2School of Social Work, University of Michigan, Ann Arbor, MI, USA; 3School of Social Work, Virginia Commonwealth University, Richmond, VA, USA; 4School of Education, University of Michigan, Ann Arbor, MI, USA; 5Instituto de Nutrición y Tecnología de los Alimentos (INTA, Universidad de Chile, Santiago, ChileAbstract: Research on adolescent use of substances has long sought to understand the family factors that may be associated with use of different substances such as alcohol, tobacco, and marijuana. However, scant attention has been focused on these questions in Latin American contexts, despite growing concerns about substance use among Latin American youth. Using data from a sample of 866 Chilean youth, we examined the relationship of family and neighborhood factors with youth substance abuse. We found that in a Latin American context, access to substances is an important predictor of use, but that neighborhood effects differ for marijuana use as opposed to cigarettes or alcohol. Age of youth, family and peer relationships, and gender all play significant roles in substance use. The study findings provide additional evidence that the use of substances is complex, whereby individual, family, and community influences must be considered jointly to prevent or reduce substance use among adolescents.Keywords: substance use, adolescence, international, peers

  16. [Validation of semantic and pragmatic modules of the Criterial and Objective Language Battery (BLOC) in Chilean children].

    Science.gov (United States)

    Castillo Guevara, Ramón D; Puyuelo Sanclemente, Miguel; Chaigneau Orfanoz, Sergio E; Martínez Jiménez, Luis

    2006-05-01

    The aim of this work was to analyse the psychometric properties of the semantics and pragmatics modules of the Objective and Criterial Language Battery (BLOC). For the semantics module (n= 259), Cronbach's alpha was 0.84; for the pragmatics module (n= 142), Cronbach's alpha was 0.91. A Categoric Principal Components Analysis (CAPCAT), produced unidimentional solutions, explaining 41.65% of the variance in the semantics module, and 41.77% in the pragmatics module. We did not find differences in performance by sex. By socio-economic status, lower status children performed worse than those of middle and higher status, but only in the semantics module. Differences by age were small, with both modules producing between 3 and 4 homogeneous groups with substantial overlap. Lack of discrimination is probably related to reduced variability due to low performance in the Chilean samples. Compared to Spain, medians in the semantics module were lower than expected (though medians in the pragmatics module were slightly higher).

  17. Achievement in mathematics and language is linked to regular physical activity: a population study in Chilean youth.

    Science.gov (United States)

    Correa-Burrows, Paulina; Burrows, Raquel; Orellana, Yasna; Ivanovic, Daniza

    2014-01-01

    We examined the association between the allocation of time to regular physical activity (PA) and achievement in mathematics and language in Chilean adolescents after controlling for confounders. In a random sample of 620 ninth graders (15.6 ± 0.7 years old), we measured regular PA, including physical education and sports extracurricular activities, and academic performance, using national standardised tests. Bivariate and multivariate regression analyses modelled the relation between academic and health-related behaviours. Sufficiency and proficiency in mathematics and language were used as outcome variables. Only 18% of adolescents had >4 h·week(-1) of regular PA. Devoting >4 h · week(-1) to regular PA significantly increased the odds of sufficiency and proficiency in both domains. After full adjustment, the odds of sufficiency and proficiency in mathematics increased by 1.9 (95% CI: 1.1-3.5) and 2.7 (95% CI: 1.7-4.3), respectively. Similarly, the odds of sufficiency and proficiency in language increased by 3.3 (95% CI: 1.7-9.7) and 2.6 (95% CI: 1.6-4.1), respectively. Adolescents with the highest allocation of time to regular PA performed much better in mathematics and language than inactive students. The academic benefits associated with PA can help to promote sustained behaviour changes regarding lifestyles. They can be more easily perceived as gains than health benefits alone.

  18. Experiences with a small scale Solar/Wind pilot installation for basic electrification in the chilean altiplano

    Energy Technology Data Exchange (ETDEWEB)

    Sapiain, Raul; Ovalle, Ricardo; Torres, Ariel; Brockmeyer, Ricarda; Schmidt, Reinhold [Centro de Energias Renovables/Universidad de Tarapaca, Arica, (Chile); Meer, Andreas V. [Solar Institute, Juelich (Germany)

    1997-12-31

    Basic rural electrification programmes are already carried out in the rural areas of northern Chile by local communities and local governments using photovoltaic systems. Solar Home Systems, 12 VDC are installed for individual households while systems for schools, public lighting etc. are realized with bigger systems, 220 VAC. Within a cooperation with the Solar Institute of the Fachhochschule Juelich, Germany, the Renewable Energy Center of the University of Tarapaca designed, installed and evaluated the first solar/wind hybrid installation for basic electrification in northern Chile, realized in Colpitas, a typical small village in the chilean altiplano. The following paper presents results and experiences of this first pilot installation. [Espanol] Ya se estan llevando a cabo programas de electrificacion rural basica en las areas rurales del Norte de Chile por las comunidades y los gobiernos locales, usando sistemas fotovoltaicos. Se instalan Sistemas Domesticos Solares de 12VDC para casas-habitacion individuales, mientras que los sistemas para escuelas, alumbrado publico, etc., se ejecutan con sistemas mas grandes de 220VAC. Con la coperacion del Instituto Solar de la Fachhochschule en Julich, Alemania, el Centro de Energia Renovable de la Universidad de Tarapaca, diseno, instalo y evaluo, la primera instalacion hibrida solar/viento para electrificacion basica en el Norte de Chile, realizado en Colpitas, un pueblo tipico pequeno del altiplano chileno. El siguiete articulo presenta los resultados y experiencias de esta primera instalacion piloto.

  19. Seco-Taondiol, an Unusual Meroterpenoid from the Chilean Seaweed Stypopodium flabelliforme and Its Gastroprotective Effect in Mouse Model

    Directory of Open Access Journals (Sweden)

    Carlos Areche

    2015-03-01

    Full Text Available Ten known meroterpenoids and the new meroterpenoid 7 were isolated from the Chilean seaweed Stypopodium flabelliforme as their acetylated derivatives. Furthermore, the known metabolite taondiol has been isolated for the first time from this species. The molecular structure of the new metabolite was determined by spectroscopic methods based on 1D- and 2D-NMR. Isolation of 7 represents a key step toward a better understanding of the biogenesis of this class of meroterpenoids. Among the meroditerpenoids isolated, stypodiol, isoepitaondiol, epitaondiol and sargaol exhibited gastroprotective activity on the HCl/Ethanol-induced gastric lesions model in mice. Regarding the mode of gastroprotective action, the activity of epitaondiol was reversed significantly when animals were pretreated with indomethacin, N-ethylmaleimide and N-nitro-l-arginine methyl ester (L-NAME suggesting that prostaglandins, sulfhydryl groups and nitric oxide are involved in their mode of gastroprotective action. In the case of sargaol the gastroprotective activity was attenuated with indomethacin and N-ethylmaleimide, which suggests that prostaglandins and sulfhydryl groups are also involved in the mode of action using this model.

  20. The Usefulness of Edible and Medicinal Fabaceae in Argentine and Chilean Patagonia: Environmental Availability and Other Sources of Supply

    Directory of Open Access Journals (Sweden)

    Soledad Molares

    2012-01-01

    Full Text Available Fabaceae is of great ethnobotanical importance in indigenous and urban communities throughout the world. This work presents a revision of the use of Fabaceae as a food and/or medicinal resource in Argentine-Chilean Patagonia. It is based on a bibliographical analysis of 27 ethnobotanical sources and catalogues of regional flora. Approximately 234 wild species grow in Patagonia, mainly (60% in arid environments, whilst the remainder belong to Sub-Antarctic forest. It was found that 12.8% (30 species, mainly woody, conspicuous plants, are collected for food or medicines. Most of the species used grow in arid environments. Cultivation and purchase/barter enrich the Fabaceae offer, bringing it up to a total of 63 species. The richness of native and exotic species, and the existence of multiple strategies for obtaining these plants, indicates hybridization of knowledge and practices. Only 22% of the total species used are mentioned in bothcontexts of food and medicine, reflecting low-use complementation. This study suggests a significant ecological appearance and a high level of availability in shops and exchange networks in Patagonia, highlighting the need to consider the full set of environmental and socioeconomic factors in research related to the use and cultural importance of plants in regional contexts.

  1. [Experience of a research Ethics Committee and the challenges of the new Chilean legislation on research in human beings].

    Science.gov (United States)

    Oyarzún G, Manuel; Pinto C, María Eugenia; Raineri B, Gina G; Amigo, Hugo; Cifuentes O, Lucía; González, María Julieta; Horwitz, Nina; Marshall F, Claudia; Orellana V, Gricel

    2014-07-01

    The welfare of research participants must be guaranteed by international ethical standards. This article communicates the procedures of the Research Ethics Committee of the School of Medicine, University of Chile (CEISH). The new Chilean legislation on research in human beings is also discussed. Law 20.120: "On scientific research in human beings, its genome and forbidding human cloning" establishes the ethical principles that must be accomplished in every research involving human beings. Article 28 of the Law 20.584 "Regulation of the rights and duties of health care users", forbids the participation of handicapped people who cannot express their will in scientific research. Article 13 states that people not related directly with patient care cannot have access to his clinical records (with the exception of people with notarial authorization by the patient). CEISH proposes that, in case of people with intellectual deficiency, the decision to approve a scientific research should be analyzed on an individual basis. If the person is capable of expressing his or her will or has stated his or her consent beforehand, the research can be authorized. If the person cannot express his or her will, the scientific research cannot take place. In prospective studies, a consent from the patient and an authorization of the health authority should be required to access clinical records. In retrospective studies, consent should be obtained from the patient when personal information is going to be used. If the information is nameless, the consent can be disregarded.

  2. Domestication and sustainable production of wild crafted plants with special reference to the Chilean Maqui berry (Aristotelia chilensis

    Directory of Open Access Journals (Sweden)

    Vogel, Hermine

    2016-07-01

    Full Text Available The principle threats for sustainable production of wild collected medicinal plants are related to ecological factors, such as endemism, and botanical factors critical for survival, such as the collection of roots or barks or slow growing species. The sustainable way to produce raw material on a large scale would be species specific management of the wild resources that guarantees conservation of biodiversity, or bringing the species under cultivation. A checklist proposed by WHO, UICN and WWF (1993 indicates that domestication of any medicinal plant concerns plant selection and breeding, studies about propagation, cultivation techniques, plant protection, time of harvest, among others. The different domestication steps are illustrated for the Chilean maqui (Aristotelia chilensis, a wild tree whose fruits are demanded in increasing volumes by the international market because of its high antioxidant capacity. High yielding plants with good fruit quality have been selected from wild populations and accessions have been cultivated under different environmental conditions to select the most suitable genotypes for the establishment of commercial orchards.

  3. Slip Distribution and Seismic Moment of the 2010 and 1960 Chilean Earthquakes Inferred from Tsunami Waveforms and Coastal Geodetic Data

    Science.gov (United States)

    Fujii, Yushiro; Satake, Kenji

    2013-09-01

    The slip distribution and seismic moment of the 2010 and 1960 Chilean earthquakes were estimated from tsunami and coastal geodetic data. These two earthquakes generated transoceanic tsunamis, and the waveforms were recorded around the Pacific Ocean. In addition, coseismic coastal uplift and subsidence were measured around the source areas. For the 27 February 2010 Maule earthquake, inversion of the tsunami waveforms recorded at nearby coastal tide gauge and Deep Ocean Assessment and Reporting of Tsunamis (DART) stations combined with coastal geodetic data suggest two asperities: a northern one beneath the coast of Constitucion and a southern one around the Arauco Peninsula. The total fault length is approximately 400 km with seismic moment of 1.7 × 1022 Nm (Mw 8.8). The offshore DART tsunami waveforms require fault slips beneath the coasts, but the exact locations are better estimated by coastal geodetic data. The 22 May 1960 earthquake produced very large, ~30 m, slip off Valdivia. Joint inversion of tsunami waveforms, at tide gauge stations in South America, with coastal geodetic and leveling data shows total fault length of ~800 km and seismic moment of 7.2 × 1022 Nm (Mw 9.2). The seismic moment estimated from tsunami or joint inversion is similar to previous estimates from geodetic data, but much smaller than the results from seismic data analysis.

  4. Profiles of Mathematics Performance by Students of Chilean City Schools, Based on Cognitive Ability by Socioeconomic Level

    Directory of Open Access Journals (Sweden)

    Mario Tirso Oscar Baltra San Martín

    2010-05-01

    Full Text Available This study analyzes the performance profile of Chilean city-school students from different socioeconomic strata, in relation to different sets of cognitive abilities specified in the curriculum framework for mathematics education in their country. The study is correlational and ex post facto in type, derived from the results of the math test of the System for Measuring Educational Quality (SIMCE applied to second-semester students of the 2001 school year. The percentage of students at each performance level was calculated, based on each student’s probability of correctly answering each of the test questions, using logistic function, associated with the two-parameter model of the Item Response Theory (IRT. The results show that regardless of the set of cognitive abilities in question, the performance profile follows a similar pattern. It was found that in general, there is a linear decrease in the percentage of those who achieve superior performances among students from low and medium-low strata, and exponential increases for middle-class students.

  5. Estudio descriptivo del desarrollo de la competencia narrativa en lengua de señas chilena (Descriptive study on narrative competence development in Chilean Sign Language

    Directory of Open Access Journals (Sweden)

    María Rosa Lissi

    2012-12-01

    , at one-year intervals. These narratives were analyzed focusing on two main aspects: the formal organization of the narrative text, its superstructure, and content organization dealing with the use of linguistic resources that serve to textual cohesion. This study focused on the various forms employed by the children to establish reference and co-reference, when introducing, maintaining or re-introducing the focus of the characters involved in the story they were narrating. Even though the children used all the cohesive elements from the first telling, they modified the functions these elements serve. The study demonstrates how the children gradually develop a capacity to construct narratives, being aware of the information needed by the audience. This is especially important within bilingual education, where it is assumed the ability to develop literacy has an important role in the consolidation process related to the development of competence in the natural language of deaf people of our country, the Chilean Sign Language.

  6. Variability of Soil Types in Wetland Meadows in the South of the Chilean Patagonia Variabilidad de Tipos de Suelos en Las Vegas del Sur de la Patagonia Chilena

    Directory of Open Access Journals (Sweden)

    Ladislava Filipová

    2010-06-01

    Full Text Available The wetland meadows and pastures (vegas of the agricultural zone of the Magallanes Region and the Chilean Patagonia are productive and intensively exploited ecosystems. However, there is scarce data about the typology and the physical and chemical properties of the soils that determine the agricultural potential of vegas sites. Sampling of the main horizons of 47 soil profiles was conducted throughout the area. The profiles were described in the field and consequently classified according to the soil typology system of the WRB (IUSS Working Group WRB, 2006. Analyses of bulk and particle densities, capillary water capacity, pH (H2O, pH (CaCl2, texture, organic material, C:N ratio, electrical conductivity, effective cation exchange capacity, N, P, Ca-Mg-K-Na, exchangeable Al,  extractable Al, sulfur SO4(2-, B, and micronutrients (Cu-Zn-Mn-Fe were carried out.  The most frequently recorded groups of soil types in the studied vegas were Histosols - peat soils (20 profiles, and Fluvisols (19. Gleysols (3, Vertisols (1, Regosols (3, Solonchaks (1 and Solonetzs (1 were detected with much less frequency. There is also considerable variability in soil properties among and within the groups of soil types. The principal differences between the Histosols and the Fluvisols are the content of organic matter (often peat, pH level (related to the absence/presence of carbonates and associated soil properties. Fluvisols are more susceptible to salinization under conditions of aridity, whereas the main threat to Histosols is artificial drainage.Las praderas húmedas (vegas de la zona de uso agropecuario de la Región de Magallanes y la Antártica Chilena son ecosistemas productivos e intensamente explotados. No obstante, los conocimientos de los factores edáficos que determinan el potencial de las vegas son escasos. En este trabajo se realizó el muestreo de los horizontes principales de 47 perfiles del suelo de distintos tipos de vegas de la zona. Los perfiles

  7. Short Term Impact of the Chilean Journal of Agricultural Research: A Bibliometric Analysis Impacto de Corto Plazo de Chilean Journal of Agricultural Research: Un Análisis Bibliométrico

    Directory of Open Access Journals (Sweden)

    Erwin Krauskopf

    2012-03-01

    Full Text Available In January 2007, the Chilean Journal of Agricultural Research was indexed by the Institute of Scientific Information (ISI. This paper reviews the research that has been published since 2007 by using records extracted from the Web of Science database. The papers published were mostly affiliated to researchers from Chile, and six out of the ten most-contributing countries were from Latin America. The analysis by institutions showed Universidad de Concepcion as the most prolific, although this result is not valid. A lack of standardization in the manner the Instituto de Investigaciones Agropecuarias (INIA subscribed its address on each paper caused a disaggregation of the information. This was proven by the manual curation of each record that was affiliated to any of the centers belonging to INIA. The journal has a self-citation rate of 19.3%, value that is relatively high if compared to other journals from the same subject category listed on The Journal Citation Reports 2010. Finally, this work should be considered a bibliometric snapshot of the current situation of the journal that will serve as a benchmark when new evaluations are made in a few-years time.En enero 2007, la revista Chilean Journal of Agricultural Research fue indexada por el Institute of Scientific Information (ISI, por lo que este artículo analiza la investigación que ha sido publicada desde el año 2007 utilizando los registros extraídos de la base de datos Web of Science. Los artículos publicados fueron mayormente afiliados a investigadores de Chile, siendo seis de los 10 países que más contribuyeron en artículos de Latinoamérica. Un análisis por institución mostró a la Universidad de Concepción como la más prolífica, aunque este resultado no es válido por una ausencia de estandarización en la manera que el Instituto de Investigaciones Agropecuarias (INIA suscribe su dirección en cada artículo, lo que provoca disgregación de la información. Esto se verific

  8. [Human races and hemato-sero-anthropology. Origin of Chilean natives and natives from Easter Island in the context of human races].

    Science.gov (United States)

    Etcheverry, R

    1997-09-01

    Geographical hematology of Bernard and Ruffie, or Hemato-sero-anthropology, intends to establish relationships between hereditary genetic characters of the blood and human races. Blood groups, haptoglobins, abnormal hemoglobin and other biological traits such as color vision are related to the origin of human races, their geographical distribution, history, settlements, drifts, invasions, customs, religious beliefs, cult to ancestors, dead modifications, culture, language, writing, sculpture, painting and pottery. Our investigations are aimed to locale Chilean natives and natives from Easter Island in the context of human races.

  9. [Recommendations of the Ethics Committee of the Chilean Society of Nephrology for the management of ethical problems in adult end stage renal disease patients].

    Science.gov (United States)

    Vukusich, Antonio; Catoni, María Isabel; Salas, Sofía P; Valdivieso, Andrés; Roessler, Emilio

    2014-03-01

    There are different approaches to treat patients with End Stage Renal Disease (ESRD): hemodialysis, peritoneal dialysis, renal transplantation and conservative medical management. The choice of the best therapy for each patient, needs both clinical and ethical skills. The Ethics Committee of the Chilean Society of Nephrology has elaborated recommendations to help health workers to deal with the ethical and clinical problems related to patients suffering ESRD. Its goal is to guide, at a national level, the effective use of minimal standards in the treatment and care of patients with ESRD, including appropriate care and information for patients, therapy selection, management of difficult cases and potential conflicts.

  10. Teaching and Learning Styles in Higher Education: Analysis of Student Teachers’ Preferences in an English Pedagogy Program at Three Chilean Universities

    Directory of Open Access Journals (Sweden)

    Constanza Rojas-Jara

    2016-09-01

    Full Text Available This paper shows the findings of a study conducted in three Chilean universities in 2014. It aims to analyze EFL student teachers’ preferences regarding their teaching and learning styles. 279 participants answered the teaching style inventory and 238 took the learning style questionnaire. These participants are first, third and fifth year student-teachers. This study uses Grasha and Riechman’s model to study teaching and learning styles. These authors propose a classification, cluster grouping and integrated clustering (Lewis, 2014; Grasha y Riechmann, 1975. The findings reveal that all student teachers favor the Facilitator teaching style and the Collaborative learning style.

  11. Phylogenetic and phylogeographic analysis of the genus Orestias (Teleostei: Cyprinodontidae) in the southern Chilean Altiplano: the relevance of ancient and recent divergence processes in speciation.

    Science.gov (United States)

    Vila, I; Morales, P; Scott, S; Poulin, E; Véliz, D; Harrod, C; Méndez, M A

    2013-03-01

    This study presents phylogenetic molecular data of the Chilean species of Orestias to propose an allopatric divergence hypothesis and phylogeographic evidence that suggests the relevance of abiotic factors in promoting population divergence in this complex. The results reveal that diversification is still ongoing, e.g. in the Ascotán salt pan, where populations of Orestias ascotanensis restricted to individual freshwater springs exhibit strong genetic differentiation, reflecting putative independent evolutionary units. Diversification of Orestias in the southern Altiplano may be linked to historical vicariant events and contemporary variation in water level; these processes may have affected the populations from the Plio-Pleistocene until the present.

  12. The Chilean way in debate: an analyze of Compañero presidente (1971 and El diálogo de América (1972

    Directory of Open Access Journals (Sweden)

    Ignacio Del Valle Dávila

    2013-12-01

    Full Text Available Compañero president [mate president](Miguel Littin, 1971 and El diálogo de América [the America's dialogue](Álvaro Covacevich, 1972 present complementary views about the first year of the Popular Unity’s government (1970-1973. In these films, two defenders of the armed struggle confront Allende: Régis Debray and Fidel Castro. Although the goal of the film is to show the via armed and the democratic way how two different strategies, but confluents, both let on the ideological tensions emerged in the left after the Chilean experience.  

  13. More to the Picture than Meets the Eye: On the Ultimate Causes behind the Chilean Economic Transformation

    Directory of Open Access Journals (Sweden)

    Martin Andersson

    2009-04-01

    Full Text Available In the contemporary development discussion on the causes behind the sustained economic growth in Chile since 1985, the predominant canon seldom attach importance to evolving processes taken place prior to the dramatic market oriented shift after 1973. From a long-term development perspective, however, such a view is unsatisfactory and potentially misleading because it tends to disregard the significance of institutional change and the agricultural transformation. Within a framework of long-term institutional change, a reinterpretation of the Chilean economic progress centred on the transformation of the Chilean agriculture is put forward. It is argued that ever since the 1930s a process of social change evolved that helped break down the growth inhibiting traditional institutional order. Specifically, the pressure for modernization, reaching its zenith at the time of the reforms of the latter half of the 1960s, broke elitist economic and political relations and led to agricultural transformation that portended and conditioned the effect of the shift to the market oriented regime of the 1970s and 1980s. Resumen: Más allá de las apariencias: las causas últimas de la transformación económica de ChileEn la discusión actual sobre las causas del sostenido crecimiento económico de Chile desde 1985, el canon predominante rara vez le otorga impor tancia a los procesos anteriores al dramático cambio de orientación hacia la economía de mercado de 1973. Sin embargo, desde una perspectiva de desarrollo a largo plazo, esta mirada es insatisfactoria y potencialmente desorientadora, dada su tendencia a ignorar la importancia del cambio institucional y la transformación de la agricultura que impulsó. Aquí se propone una reinterpretación del progreso de la economía chilena desde la perspectiva del cambio institucional a largo plazo, centrada en la transformación de la agricultura chilena. Se argumenta que, desde la década de los 30, se desarroll

  14. Transcriptional Responses of Chilean Quinoa (Chenopodium quinoa Willd.) Under Water Deficit Conditions Uncovers ABA-Independent Expression Patterns

    Science.gov (United States)

    Morales, Andrea; Zurita-Silva, Andres; Maldonado, Jonathan; Silva, Herman

    2017-01-01

    HIGHLIGHTS R49 genotype displayed best performance on selected physiological parameters and highest tolerance to drought.R49 drought over-represented transcripts has exhibited 19% of genes (306 contigs) that presented no homology to published databases.Expression pattern for canonical responses to drought such as ABA biosynthesis and other genes induced in response to drought were assessed by qPCR. Global freshwater shortage is one of the biggest challenges of our time, often associated to misuse, increased consumption demands and the effects of climate change, paralleled with the desertification of vast areas. Chenopodium quinoa (Willd.) represents a very promising species, due to both nutritional content and cultivation under water constraint. We characterized drought tolerance of three Chilean genotypes and selected Genotype R49 (Salares ecotype) based upon Relative Water Content (RWC), Electrolyte Leakage (EL) and maximum efficiency of photosystem II (Fv/Fm) after drought treatment, when compared to another two genotypes. Exploratory RNA-Seq of R49 was generated by Illumina paired-ends method comparing drought and control irrigation conditions. We obtained 104.8 million reads, with 54 million reads for control condition and 51 million reads for drought condition. Reads were assembled in 150,952 contigs, were 31,523 contigs have a reading frame of at least 300 nucleotides (100 aminoacids). BLAST2GO annotation showed a 15% of genes without homology to NCBI proteins, but increased to 19% (306 contigs) when focused into drought-induced genes. Expression pattern for canonical drought responses such as ABA biosynthesis and other genes induced were assessed by qPCR, suggesting novelty of R49 drought responses. PMID:28337209

  15. Transcriptional Responses of Chilean Quinoa (Chenopodium quinoa Willd.) Under Water Deficit Conditions Uncovers ABA-Independent Expression Patterns.

    Science.gov (United States)

    Morales, Andrea; Zurita-Silva, Andres; Maldonado, Jonathan; Silva, Herman

    2017-01-01

    HIGHLIGHTS R49 genotype displayed best performance on selected physiological parameters and highest tolerance to drought.R49 drought over-represented transcripts has exhibited 19% of genes (306 contigs) that presented no homology to published databases.Expression pattern for canonical responses to drought such as ABA biosynthesis and other genes induced in response to drought were assessed by qPCR. Global freshwater shortage is one of the biggest challenges of our time, often associated to misuse, increased consumption demands and the effects of climate change, paralleled with the desertification of vast areas. Chenopodium quinoa (Willd.) represents a very promising species, due to both nutritional content and cultivation under water constraint. We characterized drought tolerance of three Chilean genotypes and selected Genotype R49 (Salares ecotype) based upon Relative Water Content (RWC), Electrolyte Leakage (EL) and maximum efficiency of photosystem II (Fv/Fm) after drought treatment, when compared to another two genotypes. Exploratory RNA-Seq of R49 was generated by Illumina paired-ends method comparing drought and control irrigation conditions. We obtained 104.8 million reads, with 54 million reads for control condition and 51 million reads for drought condition. Reads were assembled in 150,952 contigs, were 31,523 contigs have a reading frame of at least 300 nucleotides (100 aminoacids). BLAST2GO annotation showed a 15% of genes without homology to NCBI proteins, but increased to 19% (306 contigs) when focused into drought-induced genes. Expression pattern for canonical drought responses such as ABA biosynthesis and other genes induced were assessed by qPCR, suggesting novelty of R49 drought responses.

  16. Clinical spectrum of Kufor-Rakeb syndrome in the Chilean kindred with ATP13A2 mutations.

    Science.gov (United States)

    Behrens, Maria I; Brüggemann, Norbert; Chana, Pedro; Venegas, Pablo; Kägi, Marianne; Parrao, Teresa; Orellana, Patricia; Garrido, Cristian; Rojas, Cecilia V; Hauke, Jan; Hahnen, Eric; González, Rafael; Seleme, Nicolas; Fernández, Verónica; Schmidt, Alexander; Binkofski, Ferdinand; Kömpf, Detlef; Kubisch, Christian; Hagenah, Johann; Klein, Christine; Ramirez, Alfredo

    2010-09-15

    We report the clinical features of the original Chilean family with Kufor-Rakeb syndrome (KRS) that led to the discovery of the ATP13A2 gene at the PARK9 locus. KRS is a rare juvenile-onset autosomal recessive disease characterized by progressive Parkinsonism, pyramidal signs, and cognitive decline in addition to vertical gaze palsy and facial-faucial-finger minimyoclonus. Neurological and neuropsychological examination during a 10-year period, videotaping, neuroimaging, and measurement of DNA methylation of the ATP13A2 promoter region were performed. The youngest 5 of 17 children of nonconsanguineous parents, carrying compound-heterozygous ATP13A2 mutations, had normal development until ages ∼10 to 12 years, when school performance deteriorated and slowness, rigidity, and frequent falls developed. Examination revealed bradykinesia, subtle postural/action tremor, cogwheel rigidity, spasticity, upward gaze palsy, smooth pursuit with saccadic intrusions, and dementia. Additional signs included facial-faucial-finger minimyoclonus, absent postural reflexes, visual/auditory hallucinations, and insomnia. Levodopa response could not be fully judged in this family. T2* magnetic resonance imaging sequences revealed marked diffuse hypointensity of the caudate (head and body) and lenticular nucleus bilaterally. Disease progression was slow including epilepsy, cachexia, and anarthria. Four affected members died after 28.5 ± 5.5 (mean ± SD) years of disease. Two heterozygous carriers, the mother and eldest sibling, showed jerky perioral muscle contractions and clumsiness of hand movements. There was no significant correlation between DNA methylation of the ATP13A2 promoter region and disease progression. The marked caudate and lenticular nucleus T2*-hypointensity suggests that KRS might belong to the family of neurodegenerative diseases associated with brain iron accumulation.

  17. High-risk HPV infection after five years in a population-based cohort of Chilean women

    Directory of Open Access Journals (Sweden)

    Ferreccio Catterina

    2011-11-01

    Full Text Available Abstract Background The need to review cervical cancer prevention strategies has been triggered by the availability of new prevention tools linked to human papillomavirus (HPV: vaccines and screening tests. To consider these innovations, information on HPV type distribution and natural history is necessary. This is a five-year follow-up study of gynecological high-risk (HR HPV infection among a Chilean population-based cohort of women. Findings A population-based random sample of 969 women from Santiago, Chile aged 17 years or older was enrolled in 2001 and revisited in 2006. At both visits they answered a survey on demographics and sexual history and provided a cervical sample for HPV DNA detection (GP5+/6+ primer-mediated PCR and Reverse line blot genotyping. Follow-up was completed by 576 (59.4% women; 45 (4.6% refused participation; most losses to follow-up were women who were unreachable, no longer eligible or had missing samples. HR-HPV prevalence increased by 43%. Incidence was highest in women 70 (0%; it was three times higher among women HR-HPV positive versus HPV negative at baseline (25.5% and 8.3%; OR 3.8, 95% CI 1.8-8.0. Type-specific persistence was 35.3%; it increased with age, from 0% in women 70. An enrollment Pap result ASCUS or worse was the only risk factor for being HR-HPV positive at both visits. Conclusions HR-HPV prevalence increased in the study population. All HR-HPV infections in women 30 years.

  18. Mercury-mediated cross-resistance to tellurite in Pseudomonas spp. isolated from the Chilean Antarctic territory.

    Science.gov (United States)

    Rodríguez-Rojas, F; Díaz-Vásquez, W; Undabarrena, A; Muñoz-Díaz, P; Arenas, F; Vásquez, C

    2016-01-01

    Mercury salts and tellurite are among the most toxic compounds for microorganisms on Earth. Bacterial mercury resistance is established mainly via mercury reduction by the mer operon system. However, specific mechanisms underlying tellurite resistance are unknown to date. To identify new mechanisms for tellurite detoxification we demonstrate that mercury resistance mechanisms can trigger cross-protection against tellurite to a group of Pseudomonads isolated from the Chilean Antarctic territory. Sequencing of 16S rRNA of four isolated strains resulted in the identification of three Pseudomonads (ATH-5, ATH-41 and ATH-43) and a Psychrobacter (ATH-62) bacteria species. Phylogenetic analysis showed that ATH strains were related to other species previously isolated from cold aquatic and soil environments. Furthermore, the identified merA genes were related to merA sequences belonging to transposons commonly found in isolated bacteria from mercury contaminated sites. Pseudomonas ATH isolates exhibited increased tellurite resistance only in the presence of mercury, especially ATH-43. Determination of the growth curves, minimal inhibitory concentrations and growth inhibition zones showed different tellurite cross-resistance of the ATH strains and suggested a correlation with the presence of a mer operon. On the other hand, reactive oxygen species levels decreased while the thiol content increased when the isolates were grown in the presence of both toxicants. Finally, qPCR determinations of merA, merC and rpoS transcripts from ATH-43 showed a synergic expression pattern upon combined tellurite and mercury treatments. Altogether, the results suggest that mercury could trigger a cell response that confers mercury and tellurite resistance, and that the underlying mechanism participates in protection against oxidative damage.

  19. How much survival benefit is necessary for breast cancer patients to opt for adjuvant chemotherapy? Results from a Chilean survey

    Science.gov (United States)

    Acevedo, Francisco; Sanchez, Cesar; Jans, Jaime; Rivera, Solange; Camus, Mauricio; Besa, Pelayo

    2014-01-01

    Background: Breast cancer (BC) is the leading cause of cancer death in Chilean women. Adjuvant chemotherapy decreases recurrence and death from BC. The recommendation to indicate chemotherapy is complex. Adjuvant! Online is a valuable computational tool to predict survival benefit obtained with adjuvant systemic therapy. Previous studies in Caucasian patients with BC showed that they are willing to receive chemotherapy for a small benefit. No studies, to our knowledge, have been done in the Hispanic or Latino populations. Methods: We interviewed females with BC who had previously received adjuvant chemotherapy. Age, stage at presentation, time since last chemotherapy, type of chemotherapy, marital status, number of children, and level of education were recorded. We used the graphic representation from Adjuvant! Online to question each patient on how much survival benefit she required to accept chemotherapy. Results: There were 101 women surveyed. The average age was 55.9 (±10.2), 54.5% had involved lymph nodes, 59.4% were married, and 15.8% did not have parity; 62.3% of females accepted chemotherapy for an absolute survival benefit of 1% or less. In a multivariate analysis, younger (p = 0.02) and less-educated patients (p = 0.018) were associated with lower survival benefit required to opt for chemotherapy. Conclusion: In our study, the acceptance of chemotherapy by the Hispanic population requires minimal survival benefit and is in agreement with the Caucasian population reported elsewhere. To our knowledge, our report is the first study that evaluates the perception of Latino patients regarding the benefit of chemotherapy in early BC. PMID:24678346

  20. Chemical and botanical characterization of Chilean propolis and biological activity on cariogenic bacteria Streptococcus mutans and Streptococcus sobrinus

    Directory of Open Access Journals (Sweden)

    Leticia Barrientos

    2013-01-01

    Full Text Available Propolis is a non-toxic natural substance with multiple pharmacological properties including anticancer, antioxidant, fungicidal, antibacterial, antiviral, and anti-inflammatory among others. The aim of this study was to determine the chemical and botanical characterization of Chilean propolis samples and to evaluate their biological activity against the cariogenic bacteria Streptococcus mutans and Streptococcus sobrinus. Twenty propolis samples were obtained from beekeeping producers from the central and southern regions of Chile. The botanical profile was determined by palynological analysis. Total phenolic contents were determined using colorimetric assays. Reverse phase HPLC and HPLC-MS were used to determine the chemical composition. The minimum inhibitory concentration (MIC was determined on S. mutans and S. sobrinus. All propolis samples were dominated by structures from native plant species. The characterization by HPLC/MS, evidenced the presence of quercetin, myricetin, kaempferol, rutine, pinocembrin, coumaric acid, caffeic acid and caffeic acid phenethyl ester, that have already been described in these propolis with conventional HPLC. Although all propolis samples inhibited the mutans streptococci growth, it was observed a wide spectrum of action (MIC 0.90 to 8.22 µgmL-1. Given that results it becomes increasingly evident the need of standardization procedures, where we combine both the determination of botanical and the chemical characterization of the extracts. Research conducted to date, describes a promising effectiveness of propolis in the prevention of caries and other diseases of the oral cavity, making it necessary to develop studies to identify and understand the therapeutic targets or mechanisms of molecular action of the various compounds present on them.

  1. Chemical and botanical characterization of Chilean propolis and biological activity on cariogenic bacteria Streptococcus mutans and Streptococcus sobrinus.

    Science.gov (United States)

    Barrientos, Leticia; Herrera, Christian L; Montenegro, Gloria; Ortega, Ximena; Veloz, Jorge; Alvear, Marysol; Cuevas, Alejandro; Saavedra, Nicolás; Salazar, Luis A

    2013-01-01

    Propolis is a non-toxic natural substance with multiple pharmacological properties including anti-cancer, antioxidant, fungicidal, antibacterial, antiviral, and anti-inflammatory among others. The aim of this study was to determine the chemical and botanical characterization of Chilean propolis samples and to evaluate their biological activity against the cariogenic bacteria Streptococcus mutans and Streptococcus sobrinus. Twenty propolis samples were obtained from beekeeping producers from the central and southern regions of Chile. The botanical profile was determined by palynological analysis. Total phenolic contents were determined using colorimetric assays. Reverse phase HPLC and HPLC-MS were used to determine the chemical composition. The minimum inhibitory concentration (MIC) was determined on S. mutans and S. sobrinus. All propolis samples were dominated by structures from native plant species. The characterization by HPLC/MS, evidenced the presence of quercetin, myricetin, kaempferol, rutine, pinocembrin, coumaric acid, caffeic acid and caffeic acid phenethyl ester, that have already been described in these propolis with conventional HPLC. Although all propolis samples inhibited the mutans streptococci growth, it was observed a wide spectrum of action (MIC 0.90 to 8.22 μg mL(-1)). Given that results it becomes increasingly evident the need of standardization procedures, where we combine both the determination of botanical and the chemical characterization of the extracts. Research conducted to date, describes a promising effectiveness of propolis in the prevention of caries and other diseases of the oral cavity, making it necessary to develop studies to identify and understand the therapeutic targets or mechanisms of molecular action of the various compounds present on them.

  2. Quantification of glacier contribution to runoff in a Chilean Andean basin with snow-glacier driven regime

    Science.gov (United States)

    Bobadilla, M. Paz; Vargas, Ximena

    2016-04-01

    Glaciers in mountainous regions play an important role in the basins located in such landscape. However, assessing their contribution is a complex task due to difficulties in taking appropriate measurements that could help to clarify this aspect. Most of the glaciers in the Andes within Chilean territory have shown glacier recession, which added to the hydric stress in the zone, making interesting to quantify their contribution. The Cachapoal river basin is located in the Andes in central Chile. The study area is defined by the Cachapoal en Puente Termas gauge, covering approximately 2448 km2, where 9% is cover by glacier. The basin shows a snow driven hydrological regime, strongly conditioned by the presence of glaciers, which are distributed in 4 of the 6 main sub-basins. The basin hydrology is modeled in natural regime at daily scale using the WEAP model (Water Evaluation And Planning System), using scarce meteorological information as input. A simplified glacier module is included to characterize its processes and estimate its contribution to the total runoff. The glacier contribution to runoff is studied, differentiating between normal, wet and dry years, which are defined by exceedance probability intervals of the annual precipitation using 44 years of information of the Rengo gauge. Thus, a normal year shows an annual precipitation between 473 mm and 622 mm, while the annual rainfall in a wet year is higher than a normal year and lower in a dry year. The results show that glacier contribution to the total runoff is significant, reaching 42%, 65% y 24% in the summer period in a normal, dry and wet year respectively. The glacier contribution becomes more significant in dry years, where it is estimated to contribute 40% of the mean annual streamflow.

  3. ASSOCIATION BETWEEN BODY COMPOSITION, SOMATOTYPE AND SOCIOECONOMIC STATUS IN CHILEAN CHILDREN AND ADOLESCENTS AT DIFFERENT SCHOOL LEVELS.

    Science.gov (United States)

    Lizana, Pablo A; González, Sofia; Lera, Lydia; Leyton, Bárbara

    2017-02-27

    This study examined the association between body composition, somatotype and socioeconomic status (SES) in Chilean children and adolescents by sex and school level (grade). The cross-sectional study was conducted on 1168 schoolchildren aged 6-18 years (572 males) from Valparaíso, Chile. Body composition, as assessed by percentage body fat (BF%) and somatotype, was evaluated using Ellis equations and the Heath-Carter method, respectively. The socioeconomic status of respondents was assessed using the ESOMAR survey. Obesity was defined as BF% ≥25 for boys and ≥30 for girls; 'high endomorph' somatotype was defined as a somatotype endomorph component (EC) of at least 5.5. Logistic regression analysis was used to assess the relationship between high adiposity and SES, potential confounding factors and school level. In females, the results indicated that the groups with lower SES had higher EC. At the 1st (youngest) school level (1-4th grades), males exhibited similar trends in their BF% and EC. High adiposity was associated with the female sex (BF%: OR=3.39; 95% CI 2.60, 4.41; high EC: OR=2.31; 95% CI 1.80, 2.98). In addition, low SES increased the risk of high adiposity compared with high SES (BF%: OR=2.25; 95% CI 1.40, 3.61; high EC: OR=2.19; 95% CI 1.37, 3.47). An association was observed between increased adiposity and lower SES, mainly in females, which indicates that females with low SES might be at greater risk of obesity.

  4. Source processes at the Chilean subduction region: a comparative analysis of recent large earthquakes seismic sequences in Chile

    Science.gov (United States)

    Cesca, Simone; Tolga Sen, Ali; Dahm, Torsten

    2016-04-01

    Large intraplate megathrust events are common at the western margin of the Southamerican plate, and repeatedly affected the slab segment along Chile, driven by the subduction of the oceanic Nazca plate, with a convergence of almost 7 cm/y. The size and rate of seismicity, including the 1960 Mw 9.5 Chile earthquake, pose Chile among the most highly seismogenic regions worldwide. At the same time, thanks to the significant national and international effort in recent years, Chile is nowadays seismologically well equipped and monitored; the dense seismological network provides a valuable dataset to analyse details of the rupture processes not only for the main events, but also for weaker seismicity preceding, accompanying and following the largest earthquakes. The seismic sequences accompanying recent large earthquakes showed several differences. In some cases, as for the 2014 Iquique earthquake, an important precursor activity took place in the months preceding the main shock, with an accelerating pattern in the last days before the main shock. In other cases, as for the recent Illapel earthquake, the main shock occurred with few precursors. The 2010 Maule earthquake showed an even different patterns, with the activation of secondary faults after the main shock. Recent studies were able to resolve significant changes in specific source parameters, such as changes in the distribution of focal mechanisms, potentially revealing a rotation of the stress tensor, or a spatial variation of rupture velocity, supporting a depth dependence of the rupture speed. An advanced inversion of seismic source parameters and their combined interpretation for multiple sequences can help to understand the diversity of rupture processes along the Chilean slab, and in general for subduction environments. We combine here results of different recent studies to investigate similarity and anomalies of rupture parameters for different seismic sequences, and foreshocks-aftershocks activities

  5. Multi-stage accretion of high pressure rocks and thermal changes in a subduction channel: evidence from Diego de Almagro Island (Chilean Patagonia)

    Science.gov (United States)

    Hyppolito, Thais; Angiboust, Samuel; Juliani, Caetano; Glodny, Johannes; Garcia-Casco, Antonio; Calderon, Mauricio; Chopin, Christian

    2016-04-01

    The remote Diego de Almagro Island, Chile (51° 30' S) exposes one of the rare vestiges of the Cretaceous paleo-subduction system of western South America. It is constituted by two main tectonic units formed by mafic rocks and metasediments: the high temperature/middle pressure Lázaro unit to the East and the high pressure-low temperature Almagro Complex to the West. We herein focus on the Almagro Complex, a pluri-kilometer thick subducted sequence comprising dominantly metatuffs, but also Grt-micaschists, meta-pillow lavas (showing MORB and OIB signatures) and metacherts (transformed to quartz+garnet-rich layers). Despite its apparent homogeneity, the Almagro Complex is actually composed of two distinct units (Willner et al., 2004) with distinct pressure-temperature-time paths. The Garnet Amphibolite unit (GA) shows three chemically and microstructurally distinct garnet generations that grew and (re)-equilibrated between 1.1 GPa and 1.7 GPa (35-55 km) and between 500°C and 600°C. We report for the first time in Chilean Patagonia the presence of rare relicts of omphacite in equilibrium with garnet in mafic layers together with the finding of chloritoid inclusions in garnet from metasediments, and omphacite and glaucophane inclusions in metatuffs. Our P-T estimates, based on pseudosection modeling, single/multi-equilibrium estimates and Raman spectroscopy of organic matter, demonstrate that rocks from the GA unit reached eclogite facies at around 1.7 to 1.8 GPa. Rb-Sr mineral data for Grt-amphibolites indicates that the amphibolitization overprint - which varies in intensity throughout the GA unit - took place at c. 120 Ma. The Blueschist unit, structurally below the GA unit, comprises lithologies similar to the GA unit but finer grained than the former. On other hand, the Blueschist unit (i) does not show garnet with multiple overgrowths and omphacite crystals as seen in the in GA unit; (ii) exhibits slightly lower peak metamorphic conditions than the GA unit (c

  6. Maternizando lo político: mujeres y género en el Movimiento Sindical de la Industria Salmonera Chilena Political mothering: women and gender on the Chilean Salmon Trade Union

    Directory of Open Access Journals (Sweden)

    Beatriz Eugenia Cid Aguayo

    2012-04-01

    Full Text Available Las fases de proceso de la industria salmonera chilena emplean gran cantidad de mano de obra femenina sobre la base de la naturalización de una ideología de género que atribuye a las mujeres tanto habilidades motrices como un supuesto recelo a participar en organizaciones sindicales. Sin embargo, en un contexto de alta conflictividad laboral y en respuesta a la precariedad del trabajo, se observa la emergencia de importantes liderazgos sindicales femeninos. El presente trabajo analiza por una parte los sindicatos salmoneros, y su capacidad de incluir temas de género, como también aspectos de la subjetividad y los discursos de las emergentes mujeres dirigentas. En este sentido se observará que las lideresas no compartimentan su experiencia personal, sino que organizan su subjetividad en forma integrada, aunque tensionada por los diversos roles, por una parte maternizando su trabajo sindical y por la otra, politizando su vida privada.The Chilean salmon industry processing plants demand important amounts of female labour-force on the ground of naturalized attributed female gender characteristics, such as nimble fingers and particularly, lower union participation. However, in a context of high labour conflict and in response to precarious labour condition, important female leaderships have emerged. This work analyzes, on the one hand, the salmon unions, and their capacity to include gender issues, and, on the other hand, aspects of the subjectivity and speeches of the emergent women leaders. I will argue that female leaders do no fragment their personal experience, but organized their subjectivity in an integrated but also stressed way, on the one hand mothering their trade union activity, and on the other, politicizing their private life.

  7. [Globalization of higher education in Europe. The precursor of changes in Chilean medical education].

    Science.gov (United States)

    Rosselot, Eduardo

    2005-07-01

    At the present time, higher education is a central process shaping the society of knowledge. The mutual strength of society and education influence worldwide changes. Globalization, that mainly embraces politics and commerce, is also promoting changes in professional training, modifying programs, structures and the organization of superior education. The European example is attractive and has a great projection. It will cause a profound impact in culture, development and life of Europeans. Universities in Latin America, in an attempt to achieve the same objectives than their European counterparts, are experiencing premonitory changes, that will have the same effects as in Europe. In the medical area, several changes will occur and we will have to provide initiatives to facilitate these changes in a timely manner. The revision of the model in its inception, is convenient to assimilate changes in our culture.

  8. De novo Assembly and Analysis of the Chilean Pencil Catfish Trichomycterus areolatus Transcriptome

    Science.gov (United States)

    Schulze, Thomas T.; Ali, Jonathan M.; Bartlett, Maggie L.; McFarland, Madalyn M.; Clement, Emalie J.; Won, Harim I.; Sanford, Austin G.; Monzingo, Elyssa B.; Martens, Matthew C.; Hemsley, Ryan M.; Kumar, Sidharta; Gouin, Nicolas; Kolok, Alan S.; Davis, Paul H.

    2016-01-01

    Trichomycterus areolatus is an endemic species of pencil catfish that inhabits the riffles and rapids of many freshwater ecosystems of Chile. Despite its unique adaptation to Chile's high gradient watersheds and therefore potential application in the investigation of ecosystem integrity and environmental contamination, relatively little is known regarding the molecular biology of this environmental sentinel. Here, we detail the assembly of the Trichomycterus areolatus transcriptome, a molecular resource for the study of this organism and its molecular response to the environment. RNA-Seq reads were obtained by next-generation sequencing with an Illumina® platform and processed using PRINSEQ. The transcriptome assembly was performed using TRINITY assembler. Transcriptome validation was performed by functional characterization with KOG, KEGG, and GO analyses. Additionally, differential expression analysis highlights sex-specific expression patterns, and a list of endocrine and oxidative stress related transcripts are included. PMID:27672404

  9. Characterization of mandibular molar root and canal morphology using cone beam computed tomography and its variability in Belgian and Chilean population samples

    Energy Technology Data Exchange (ETDEWEB)

    Torres, Andres; Jacobs, Reinhilde; Lambrechts, Paul [Katholieke Universiteit Leuven, Leuven (Belgium); Brizuela, Claudia; Cabrera, Carolina; Concha, Guillermo; Pedemonte, Maria Eugenia [Universidad de los Andes, Santiago (Chile)

    2015-06-15

    This study used cone-beam computed tomography (CBCT) to characterize mandibular molar root and canal morphology and its variability in Belgian and Chilean population samples. We analyzed the CBCT images of 515 mandibular molars (257 from Belgium and 258 from Chile). Molars meeting the inclusion criteria were analyzed to determine (1) the number of roots; (2) the root canal configuration; (3) the presence of a curved canal in the cross-sectional image of the distal root in the mandibular first molar and (4) the presence of a C-shaped canal in the second mandibular molar. A descriptive analysis was performed. The association between national origin and the presence of a curved or C-shaped canal was evaluated using the chi-squared test. The most common configurations in the mesial root of both molars were type V and type III. In the distal root, type I canal configuration was the most common. Curvature in the cross-sectional image was found in 25% of the distal canals of the mandibular first molars in the Belgian population, compared to 11% in the Chilean population. The prevalence of C-shaped canals was 10% or less in both populations. In cases of unclear or complex root and canal morphology in the mandibular molars, CBCT imaging might assist endodontic specialists in making an accurate diagnosis and in treatment planning.

  10. Egg laying site selection by a host plant specialist leaf miner moth at two intra-plant levels in the northern Chilean Atacama Desert

    Directory of Open Access Journals (Sweden)

    José Storey-Palma

    2014-09-01

    Full Text Available Egg laying site selection by a host plant specialist leaf miner moth at two intra-plant levels in the northern Chilean Atacama Desert. The spatial distribution of the immature stages of the leaf miner Angelabella tecomae Vargas & Parra, 2005 was determined at two intra-plant levels (shoot and leaflet on the shrub Tecoma fulva fulva (Cav. D. Don (Bignoniaceae in the Azapa valley, northern Chilean Atacama Desert. An aggregated spatial pattern was detected for all the immature stages along the shoot, with an age dependent relative position: eggs and first instar larvae were clumped at apex; second, third and fourth instar larvae were mostly found at intermediate positions; meanwhile the spinning larva and pupa were clumped at basis. This pattern suggests that the females select new, actively growing leaflets for egg laying. At the leaflet level, the immature stages were found more frequently at underside. Furthermore, survivorship was higher for larvae from underside mines. All these results highlight the importance of an accurate selection of egg laying site in the life history of this highly specialized leaf miner. By contrast, eventual wrong choices in the egg laying site selection may be associated with diminished larval survivorship. The importance of the continuous availability of new plant tissue in this highly human modified arid environment is discussed in relation with the observed patterns.

  11. ERK1/2 and HIF1α Are Involved in Antiangiogenic Effect of Polyphenols-Enriched Fraction from Chilean Propolis

    Science.gov (United States)

    Cuevas, Alejandro; Saavedra, Nicolás; Rudnicki, Martina; Abdalla, Dulcineia S. P.; Salazar, Luis A.

    2015-01-01

    Propolis has been shown to modulate the angiogenesis in both in vitro and in vivo models. Thus, we aimed to evaluate the antiangiogenic properties of an ethanolic extract of Chilean propolis (EEP) and Pinocembrin (Pn). Migration, formation of capillary-like structures of endothelial cells, and sprouting from rat aortic rings were used to assess the antiangiogenic properties of EEP or Pn. In addition, microRNAs and VEGFA mRNA expression were studied by qPCR. ERK1/2 phosphorylation and HIF1α stabilization were assessed by western blot. EEP or Pn attenuated the migration, the capillary-like tube formation, and the sprouting in the in vitro assays. In addition, the activation of HIF1α and ERK1/2 and the VEGFA mRNA expression was significantly inhibited in a dose-dependent manner. In summary, these results suggest that HIF1α and ERK1/2 phosphorylation could be involved in the antiangiogenic effect of Chilean propolis, but more studies are needed to corroborate these findings. PMID:26347785

  12. Radiometric Cross-Calibration of the Chilean Satellite FASat-C Using RapidEye and EO-1 Hyperion Data and a Simultaneous Nadir Overpass Approach

    Directory of Open Access Journals (Sweden)

    Carolina Barrientos

    2016-07-01

    Full Text Available The absolute radiometric calibration of a satellite sensor is the critical factor that ensures the usefulness of the acquired data for quantitative applications on remote sensing. This work presents the results of the first cross-calibration of the sensor on board the Sistema Satelital de Observación de la Tierra (SSOT Chilean satellite or Air Force Satellite FASat-C. RapidEye-MSI was chosen as the reference sensor, and a simultaneous Nadir Overpass Approach (SNO was applied. The biases caused by differences in the spectral responses of both instruments were compensated through an adjustment factor derived from EO-1 Hyperion data. Through this method, the variations affecting the radiometric response of New AstroSat Optical Modular Instrument (NAOMI-1, have been corrected based on collections over the Frenchman Flat calibration site. The results of a preliminary evaluation of the pre-flight and updated coefficients have shown a significant improvement in the accuracy of at-sensor radiances and TOA reflectances: an average agreement of 2.63% (RMSE was achieved for the multispectral bands of both instruments. This research will provide a basis for the continuity of calibration and validation tasks of future Chilean space missions.

  13. ERK1/2 and HIF1α Are Involved in Antiangiogenic Effect of Polyphenols-Enriched Fraction from Chilean Propolis

    Directory of Open Access Journals (Sweden)

    Alejandro Cuevas

    2015-01-01

    Full Text Available Propolis has been shown to modulate the angiogenesis in both in vitro and in vivo models. Thus, we aimed to evaluate the antiangiogenic properties of an ethanolic extract of Chilean propolis (EEP and Pinocembrin (Pn. Migration, formation of capillary-like structures of endothelial cells, and sprouting from rat aortic rings were used to assess the antiangiogenic properties of EEP or Pn. In addition, microRNAs and VEGFA mRNA expression were studied by qPCR. ERK1/2 phosphorylation and HIF1α stabilization were assessed by western blot. EEP or Pn attenuated the migration, the capillary-like tube formation, and the sprouting in the in vitro assays. In addition, the activation of HIF1α and ERK1/2 and the VEGFA mRNA expression was significantly inhibited in a dose-dependent manner. In summary, these results suggest that HIF1α and ERK1/2 phosphorylation could be involved in the antiangiogenic effect of Chilean propolis, but more studies are needed to corroborate these findings.

  14. Synergistic effects of hypoxia and increasing CO2 on benthic invertebrates of the central Chilean coast

    KAUST Repository

    Steckbauer, Alexandra

    2015-07-10

    Ocean acidification (OA) and hypoxic events are an increasing worldwide problem, but the synergetic effects of these factors are seldom explored. However, this synergetic occurrence of stressors is prevalent. The coastline of Chile not only suffers from coastal hypoxia but the cold, oxygen-poor waters in upwelling events are also supersaturated in CO2, a study site to explore the combined effect of OA and hypoxia. We experimentally evaluated the metabolic response of different invertebrate species (2 anthozoans, 9 molluscs, 4 crustaceans, 2 echinoderms) of the coastline of central Chile (33°30′S, 71°37′W) to hypoxia and OA within predicted levels and in a full factorial design. Organisms were exposed to 4 different treatments (ambient, low oxygen, high CO2, and the combination of low oxygen and high CO2) and metabolism was measured after 3 and 6 days. We show that the combination of hypoxia and increased pCO2 reduces the respiration significantly, compared to a single stressor. The evaluation of synergistic pressures, a more realistic scenario than single stressors, is crucial to evaluate the effect of future changes for coastal species and our results provide the first insight on what might happen in the next 100 years.

  15. Beliefs of Chilean University English Teachers: Uncovering Their Role in the Teaching and Learning Process (Creencias de profesores universitarios de inglés: descubriendo su papel en el proceso de enseñanza y aprendizaje)

    Science.gov (United States)

    Díaz Larenas, Claudio; Alarcón Hernández, Paola; Vásquez Neira, Andrea; Pradel Suárez, Boris; Ortiz Navarrete, Mabel

    2013-01-01

    Beliefs continue to be an important source to get to know teachers' thinking processes and pedagogical decisions. Research in teachers' beliefs has traditionally come from English-speaking contexts; however, a great deal of scientific work has been written lately in Brazil, Mexico, Colombia, and Argentina. This study elicits 30 Chilean university…

  16. Organization within Organization Studies

    DEFF Research Database (Denmark)

    Lopdrup-Hjorth, Thomas

    This paper explores how prevalent contemporary problematizations of organizations coincide with a widespread assessment that Organization Studies (OS) has run out of steam. This impasse, the paper argues, is largely due to the emergence of an organization-phobia that has come to seize several...... strands of theorizing. By attending to the wide-ranging and far-reaching history of this organization-phobia, the paper argues that OS has become increasingly incapable of speaking about its core object. I show how organizations went from being conceptualized as entities of major importance to becoming...... associated with all kinds of ills. Through this history, organizations as distinct entities have been rendered so problematic that they have gradually come to be removed from the center of OS. The costs of this have been rather significant. Besides undermining the grounds that gave OS intellectual...

  17. Introducción de especies en ambientes marinos chilenos: no solo exóticas, no siempre evidentes Introduction of species in Chilean marine environments: not only exotic, not always evident

    Directory of Open Access Journals (Sweden)

    PATRICIO A. CAMUS

    2005-03-01

    the culture of abalone would be provoking them already indirectly through intensive harvesting of macroalgae needed as food sources. However, the phenomenon of introduction is not restricted to exotic species, and it may also include the accidental or intentional introduction of either native or Chilean distributed species into environments where they were not present before naturally. In this sense, species introductions would be a much more common and widespread phenomenon than previously thought, practiced for a long time in aquaculture and related activities, and involving organisms subjected to genetic selection or modification. On the other hand, national and international regulations to control these activities seem to be either insufficient or scarcely efficient, and they might be against large economical interests. Potentially, the combined historical impact of such practices would be high, although proper assessments are lacking. It is worth noting that introductions are not infrequent in activities linked to scientific or technologic marine research, and their potential effects are poorly known as well. The Chilean scientific community, mostly linked to marine biology, should adopt clear positions in face of this problem, and well before aquaculture and conservation become conflicting biological disciplines

  18. Effect of nitrogen and phosphorus fertilization on the composition of rhizobacterial communities of two Chilean Andisol pastures.

    Science.gov (United States)

    Jorquera, Milko A; Martínez, Oscar A; Marileo, Luis G; Acuña, Jacquelinne J; Saggar, Surinder; Mora, María L

    2014-01-01

    The effect of nitrogen (N) and phosphorus (P) fertilization on composition of rhizobacterial communities of volcanic soils (Andisols) from southern Chile at molecular level is poorly understood. This paper investigates the composition of rhizobacterial communities of two Andisols under pasture after 1- and 6-year applications of N (urea) and P (triple superphosphate). Soil samples were collected from two previously established sites and the composition of rhizobacterial communities was determined by denaturing gradient gel electrophoresis (PCR-DGGE). The difference in the composition and diversity between rhizobacterial communities was assessed by nonmetric multidimensional scaling (MDS) analysis and the Shannon-Wiener index. In Site 1 (fertilized for 1 year), PCR-DGGE targeting 16S rRNA genes and MDS analysis showed that moderate N application (270 kg N ha(-1) year(-1)) without P significantly changed the composition of rhizobacterial communities. However, no significant community changes were observed with P (240 kg P ha(-1) year(-1)) and N-P application (270 kg N ha(-1) year(-1) plus 240 kg P ha(-1) year(-1)). In Site 2 (fertilized for 6 years with P; 400 kg P ha(-1) year(-1)), PCR-DGGE targeting rpoB, nifH, amoA and alkaline phosphatase genes and MDS analysis showed changes in rhizobacterial communities only at the highest rate of N application (600 kg N ha(-1) year(-1)). Quantitative PCR targeting 16S rRNA genes also showed higher abundance of bacteria at higher N application. In samples from both sites, the Shannon-Wiener index did not show significant difference in the diversity of rhizobacterial communities. The changes observed in rhizobacterial communities coincide in N fertilized pastures with lower soil pH and higher pasture yields. This study indicates that N-P application affects the soil bacterial populations at molecular level and needs to be considered when developing fertilizer practices for Chilean pastoral Andisols.

  19. Effect of a previous high hydrostatic pressure treatment on lipid damage in chilled Chilean jack mackerel (Trachurus murphyi

    Directory of Open Access Journals (Sweden)

    Maluenda, D.

    2013-12-01

    Full Text Available Lipid damage evolution was analyzed in chilled Chilean jack mackerel (Trachurus murphyi previously treated with high hydrostatic pressure (HHP technology. Different pressure levels and pressure holding times were tested. In addition, fish corresponding to pre- and post-rigor mortis (RM stages were comparatively studied. Previous HHP treatment led to a marked lipid hydrolysis inhibition in chilled fish. Increasing the pressure level and pressure holding time led to a lower free fatty acid content, with the effect of pressure being more relevant. According to the analysis of different types of lipid oxidation indexes, no effect of the previous HHP treatment on the lipid oxidation development could be determined in chilled jack mackerel. Concerning the effect of the RM stage of raw fish, a higher primary and secondary lipid oxidation development was observed in fish corresponding to the post-RM condition throughout the chilled storage; although a definite effect on lipid hydrolysis could not be found.Se estudió la evolución de la alteración lipídica en jurel chileno (Trachurus murphyi refrigerado previamente tratado a altas presiones hidrostáticas (HHP. Se aplicaron distintos valores de presión y tiempo de presurización; asimismo, se analizó de forma comparativa la respuesta al proceso del pescado inicial en estados pre- y post-rigor mortis (RM. El tratamiento previo por HHP produjo inhibición de la hidrólisis lipídica en pescado refrigerado, siendo más intenso el efecto de la presión que el del tiempo de presurización. De acuerdo con el análisis de distintos índices de oxidación, no se concluyó un efecto determinante sobre la oxidación lipídica por parte del tratamiento previo de HHP. En relación al efecto del estado de RM del pescado inicial, se observó una oxidación primaria y secundaria mayor en jurel correspondiente a la condición post-RM durante la conservación en refrigeración; sin embargo, no se detectó un efecto

  20. ESTRATEGIAS DE DESCORTESÍA EN EL DISCURSO PARLAMENTARIO CHILENO Impoliteness strategies in the Chilean parliamentary discours

    Directory of Open Access Journals (Sweden)

    Abelardo San Martín Núñez

    2012-12-01

    Full Text Available El propósito de este artículo es analizar las estrategias de descortesía verbal en una muestra de discurso parlamentario chileno. Para tal propósito se estudiaron las secuencias de discurso que manifestaban dichas estrategias en un corpus de 28 sesiones de la honorable Cámara de Diputados de Chile realizadas entre 2005 y 2007, en las que se discutieron diferentes asuntos polémicos de interés público. Para el análisis de la descortesía en el discurso político aquí realizado se consultaron los trabajos de Chilton y Schäffner (1999, Blas Arroyo (2001 y 2003 y Bolívar (2005, entre otros. Una vez analizados los textos de las transcripciones de las sesiones de la muestra se identificaron las siguientes estrategias de descortesía: atacar la imagen pública del oponente y resguardar la propia imagen pública. Asimismo, la primera de dichas estrategias se subclasificó en las siguientes tácticas: desacreditaciones, ridiculizaciones y amedrentamientos.The purpose of this article is to analyze impoliteness strategies in a sample of Chilean parliamentary discourse. To that effect, this study puts forward an analysis of the discourse sequences manifesting these strategies in a corpus constituted by 28 sessions held between 2005 and 2007 by the honorable Chamber of Representatives of Chile, in which different and controversial issues of public interest were discussed. For the analysis of impoliteness in political discourse carried out in this study, the works of Chilton y Schäffner (1999, Blas Arroyo’s (2001 and 2003 and Bolívar’s (2005 were consulted, among others. Once the transcriptions of the sessions under analysis were processed, the following impoliteness strategies expressing the representatives’ political goals were identified: attacking the opponent’s public image and protecting the own public image. Likewise, the first of these strategies was sub-classified into the following tactics: discrediting, ridiculizing, and

  1. LA VOZ DE LOS NIÑOS EN LA JUSTICIA DE FAMILIA DE CHILE Children's voices in Chilean family courts

    Directory of Open Access Journals (Sweden)

    Macarena Vargas Pavez

    2011-01-01

    Full Text Available El derecho de los niños a ser oídos y a que su opinión sea debidamente tomada en cuenta constituye un mandato legal que obliga a los jueces de familia a recoger sus deseos y sentimientos en una amplia gama de materias. Sin embargo, ni la Convención de Derechos del Niño ni la legislación nacional establecen cómo poner en práctica este derecho: ¿Quién debe escucharlos? ¿Desde qué edad en adelante? ¿En qué tipo de asuntos? ¿Con o sin presencia de sus padres o adultos significativos? Estas son algunas de las preguntas que surgen frente a esta temática. Dar a conocer los resultados de un estudio empírico que indaga sobre las formas en que la judicatura de familia recupera la voz de los niños, así como las dificultades y desafíos que entraña la aplicación práctica del derecho a ser oído es el objetivo del presente trabajo.The right of the children to be heard and to have their opinion considered properly constitutes a legal mandate that forces family judges to gather their desires and feelings in a wide range of matters. Nevertheless, neither the Convention of Children's Rights nor Chilean national legislation establishes how to put in practice this right: Who should listen to them? From what age forward? In what type of matters? With or without the presence of their parents or other significant adults? These are some of the questions that arise from this subject. This work aims to present the results of an empirical study that investigated the forms in which the family judicature recovers the voice of the children, as well as the difficulties and challenges of the practical application of this right.

  2. Frecuencia de comportamientos anormales estereotipados en caballos Chilenos estabulados Frequency of stereotyped abnormal behaviour in stabled Chilean horses

    Directory of Open Access Journals (Sweden)

    L Muñoz

    2009-01-01

    Full Text Available La frecuencia de comportamientos anormales estereotipados como aerofagia, bamboleo y paseo circular en la pesebrera, fue estudiada en 100 caballos Chilenos, de ambos sexos, estabulados en pesebreras individuales durante todo el día o parte de éste, amansados y de dos años o más pertenecientes a 16 criaderos de la comuna de Chillán. Los caballos fueron observados desde las 7:00 a las 19:00 horas durante un día y su propietario o cuidador consultado si presentaba algún comportamiento anormal estereotipado. Los equinos de acuerdo a su edad se dividieron en dos grupos: de 2 a 5 años y mayores a 5 años, y de acuerdo al sexo en tres grupos: machos enteros, machos castrados y hembras. Los datos fueron analizados por medio de la planilla electrónica Microsoft® Excel, para establecer las frecuencias, y para comparar diferencias existentes entre los comportamientos anormales y las variables sexo y edad se utilizó la Prueba Exacta de Fisher, con un nivel de significancia de P The frequency of stereotyped abnormal behaviour i.e. windsucking/crib-biting, weaving and stall-walking were studied in 100 Chilean horses of both sex, stabled in individual boxes either all day long or during a certain period of time. All horses were tamed and older than 2 years old, and belonging to 16 studs of the Comuna de Chillán (Chile. The horses were observed between 7:00 and 19:00 hours during one day, and its owner or carer was asked whether the horse presented some stereotyped abnormal behaviour or not. Horses were separated according to age into 2 groups: 2 to 5 years old and older than 5 years, and also according to sex: stallions, geldings or mares. Data was analysed using the Microsoft® Excel Worksheet to establish frequencies. Differences between groups were analysed by Exact Fisher’s Test. Significance level was P < 0.05. The results showed that 50% of the studs had one or more horses with some stereotyped abnormal behaviour. Ten porcent of the horses

  3. Knowledge Organization = Information Organization?

    DEFF Research Database (Denmark)

    Hjørland, Birger

    Are the terms ―information organization‖ (IO), ―organization of information‖ (OI) and ―information architecture‖ (IA) synonyms for knowledge organization (KO)? This study uses bibliometric methods, among others, to determine some relations between these terms and their meanings. Apparently the data...

  4. Late Cenozoic Deformation of the Coastal Cordillera, Northern Chilean Forearc, 18- 25°S

    Science.gov (United States)

    Allmendinger, R. W.; González, G.; Loveless, J. P.; Carrizo, D.

    2007-12-01

    Overlying the only part of the South American continental crust that is in direct contact with the subducting Nazca Plate, the Coastal Cordillera of northern Chile and southern Peru should provide the most complete geological record of the coupling between the two plates. This record of coupling is exquisitely preserved in the hyperarid Atacama Desert. This preservation is both one of the major advantages and major challenges of working in this region: On the positive side, exposure of geomorphic surfaces is complete and unencumbered by erosion or vegetation, and brittle saline soils preserve subtle deformation features that would quickly be obliterated in more humid environments. On the negative side, ancient geomorphic features are just as fresh as Recent one and the lack of organic material precludes radiocarbon dating, a traditional tool of paleoseismology. During the last several years, we have concentrated on documenting three fundamental characteristics of late Cenozoic forearc deformation: (1) NS shortening on reverse faults striking at a high angle to, and dextral-reverse faults striking oblique to, the continental margin; (2) N-striking normal faults of the forearc and their reactivation, locally, as reverse faults; and (3) extensive suites of tension cracks. Reverse faults striking at a high angle to the margin are present between 19 and 21.5°S, straddling the topographic symmetry plane that marks the axis of the Bolivian orocline. Limited dating of tuffs and surfaces shows that these structures have been active for at least the last 6 Ma. At least 5 of these structures -- Atajaña, Pisagua, Iquique north and south, and Barranco Alto -- cut the Pleistocene marine terraces of the coastal platform, producing 20 to 50 m of vertical offset. A forearc crustal earthquake just south of Pisagua in March 2007 demonstrates that margin parallel shortening continues to the present and that permanent deformation occurs during the interseismic part of the plate

  5. Eclogite-, amphibolite- and blueschist-facies rocks from Diego de Almagro Island (Patagonia): Episodic accretion and thermal evolution of the Chilean subduction interface during the Cretaceous

    Science.gov (United States)

    Hyppolito, Thais; Angiboust, Samuel; Juliani, Caetano; Glodny, Johannes; Garcia-Casco, Antonio; Calderón, Mauricio; Chopin, Christian

    2016-11-01

    Few localities in the Patagonian Andes expose remnants of the Mesozoic Chilean paleo-accretionary complex. We focus on the Diego de Almagro Island high-pressure/low-temperature (HP/LT) Complex, a pluri-kilometer thick sequence comprising metavolcanic rocks with oceanic affinities and metasedimentary rocks. In this study, the deepest segments of the Chilean subduction interface in Patagonia are characterized for the first time. Despite its apparent homogeneity, the complex is actually composed of two tectonic units with distinct ages of metamorphism and thermal evolution: the garnet amphibolite (GA) and the underlying blueschist (BS) units. The GA unit mafic rocks exhibit epidote, phengite, titanite, rutile, chloritoid and paragonite inclusions in prograde garnet I, diopside + albite intergrows replacing omphacite inclusions in garnet II, and relict omphacite (XJd45) included in edenitic-pargasitic amphiboles. Thermobarometric results show that these rocks were buried along a relatively cold prograde path (c. 11 °C/km) and reached eclogite-facies near peak pressure conditions (c. 550-600 °C, 1.6 GPa). The GA unit underwent a pervasive stage of amphibolitization during decompression at c. 1.3 GPa. Field and petrological observations, together with multi-mineral Rb-Sr dating, indicate that amphibolitization of the GA unit took place along the subduction interface at c. 120 Ma in a slightly warmer subduction regime (c. 13-14 °C/km), in agreeement with the formation of coetanoeus amphibolites at c. 35 km. The underlying BS unit (i) yields four consistent Rb-Sr deformation ages of c. 80 Ma, i.e. 40 Ma younger than the overlying rocks from the GA unit; (ii) exhibits slightly cooler peak metamorphic conditions (c. 520-550 °C, 1.6 GPa) indicating burial along a prograde path of c. 10 °C/km (iii) does not show amphibolite-facies overprint as seen in the GA unit. After a long residence time under amphibolite-facies conditions, the amphibolitized rocks of the GA unit

  6. Etiology of acute otitis media and serotype distribution of Streptococcus pneumoniae and Haemophilus influenzae in Chilean children <5 years of age.

    Science.gov (United States)

    Rosenblut, Andres; Napolitano, Carla; Pereira, Angelica; Moreno, Camilo; Kolhe, Devayani; Lepetic, Alejandro; Ortega-Barria, Eduardo

    2017-02-01

    The impact of bacterial conjugate vaccines on acute otitis media (AOM) is affected by several factors including population characteristics, bacterial etiology and vaccine conjugation method, carrier, and coverage. This study estimated the baseline etiology, distribution, and antibiotic susceptibility of bacterial serotypes that causes AOM in children aged Haemophilus influenzae (40.3% [56/139]) were predominant among the cultures that showed bacterial growth (85% [139/164]). All Streptococcus pneumoniae positive episodes were serotyped, 19F (21%) and 14 (17%) were the predominant serotypes; all Haemophilus influenzae strains were nontypeable. Streptococcus pneumoniae were resistant to penicillin (5%) and erythromycin (33%); Haemophilus influenzae were resistant to ampicillin (14%) and cefuroxime and cefotaxime (2% each).AOM in Chilean children is predominantly caused by Streptococcus pneumoniae and nontypeable Haemophilus influenzae. Use of a broad spectrum vaccine against these pathogens might aid the reduction of AOM in Chile.

  7. Antioxidant Capacity and HPLC-DAD-MS Profiling of Chilean Peumo (Cryptocarya alba Fruits and Comparison with German Peumo (Crataegus monogyna from Southern Chile

    Directory of Open Access Journals (Sweden)

    Mario J. Simirgiotis

    2013-02-01

    Full Text Available Liquid chromatography (LC coupled with UV detection and electrospray ionization (ESI tandem mass spectrometry (MS/MS was used for the generation of chemical fingerprints and the identification of phenolic compounds in peumo fruits and aerial parts from southern Chile. Thirty three compounds (19 of these detected in C. alba and 23 in C. monogyna were identified, mainly flavonoid glycosides, phenolic acids, anthocyanins and flavonoid aglycons. Total phenolic content and total flavonoid content was measured for both species, and were higher in the extracts from C. monogyna fruits and aerial parts than extracts from C. alba. The fruits of Cryptocarya alba (Chilean peumo presented high antioxidant capacity (9.12 ± 0.01 mg/mL in the DPPH assay, but was three times lower to that of Crataegus monogyna (German peumo (3.61 ± 0.01 mg/mL in the DPPH assay.

  8. The Chilean wild raspberry (Rubus geoides Sm.) increases intracellular GSH content and protects against H2O2 and methylglyoxal-induced damage in AGS cells.

    Science.gov (United States)

    Jiménez-Aspee, Felipe; Theoduloz, Cristina; Ávila, Felipe; Thomas-Valdés, Samanta; Mardones, Claudia; von Baer, Dietrich; Schmeda-Hirschmann, Guillermo

    2016-03-01

    The Chilean raspberry Rubus geoides Sm. (Rosaceae) is a native species occurring in the Patagonia. Five R. geoides samples were assessed for phenolic content and composition, antioxidant activity, effect on total reduced glutathione (GSH) synthesis and protective effect against H2O2 and methylglyoxal (MGO)-induced stress in epithelial gastric AGS cells. The HPLC-DAD/ESI-MS profiles allowed the tentative identification of 39 phenolics including flavonol glycosides and tannins. R. geoides presented higher total phenolic and flavonoid content than Rubus idaeus. Two out of the five phenolic enriched R. geoides extracts (PEEs) exhibited better antioxidant activity than R. idaeus in the DPPH, FRAP and TEAC assays. A significant cytoprotective activity was observed when AGS cells were pre-incubated with extracts and subsequently challenged with H2O2 or MGO. Treatment with the PEEs increased the intracellular GSH content. R. geoides fruit extracts may induce the activation of intracellular protection mechanisms against oxidative and dicarbonyl-induced stress.

  9. Association between socioeconomic vulnerability and height with obesity in low-income Chilean children in the transition from preschool to first grade.

    Science.gov (United States)

    Kain, Juliana; Orellana, Yasna; Leyton, Bárbara; Taibo, Marcela; Vio, Fernando

    2014-01-01

    This study determined the percentage of obesity among lower-income Chilean children 4-6 years of age, by socioeconomic vulnerability (family score assessing the children's risk of becoming poor) and height. The sample included 17,080 children with anthropometry at 4, 5, and 6 years of age, and three categories of socioeconomic vulnerability. Body mass index Z-score (BMI Z), % obesity, height/age Z-score (HAZ) by socioeconomic vulnerability/sex, the effect of socioeconomic vulnerability on BMI Z and HAZ by age/sex, and BMI Z and % obesity at 4-6 years, according to initial height, were determined. Between 4-6 years, % obesity is very high, especially among the less-vulnerable and taller children. Preventive measures should prioritize this group.

  10. Etiology of acute otitis media and serotype distribution of Streptococcus pneumoniae and Haemophilus influenzae in Chilean children <5 years of age

    Science.gov (United States)

    Rosenblut, Andres; Napolitano, Carla; Pereira, Angelica; Moreno, Camilo; Kolhe, Devayani; Lepetic, Alejandro; Ortega-Barria, Eduardo

    2017-01-01

    Abstract The impact of bacterial conjugate vaccines on acute otitis media (AOM) is affected by several factors including population characteristics, bacterial etiology and vaccine conjugation method, carrier, and coverage. This study estimated the baseline etiology, distribution, and antibiotic susceptibility of bacterial serotypes that causes AOM in children aged Streptococcus pneumoniae (41.7% [58/139]) and Haemophilus influenzae (40.3% [56/139]) were predominant among the cultures that showed bacterial growth (85% [139/164]). All Streptococcus pneumoniae positive episodes were serotyped, 19F (21%) and 14 (17%) were the predominant serotypes; all Haemophilus influenzae strains were nontypeable. Streptococcus pneumoniae were resistant to penicillin (5%) and erythromycin (33%); Haemophilus influenzae were resistant to ampicillin (14%) and cefuroxime and cefotaxime (2% each). AOM in Chilean children is predominantly caused by Streptococcus pneumoniae and nontypeable Haemophilus influenzae. Use of a broad spectrum vaccine against these pathogens might aid the reduction of AOM in Chile. PMID:28178138

  11. Scale Attitude toward Indebtedness: factorial validity and attitudinal profiles in Chilean university students [Escala de Actitudes hacia el Endeudamiento: validez factorial y perfiles actitudinales en estudiantes universitarios chilenos

    Directory of Open Access Journals (Sweden)

    Marianela Denegri Coria

    2012-06-01

    Full Text Available The number of university students who present an early indebtedness has increased in the last years, which represents a potential risk for his financial stability. This study examined validity factorial of the Scale of Attitudes toward the Indebtedness (Denegri et al., 1999 and determines the existence of profile attitudinal typology towards the indebtedness in a sample of 984 university Chilean students with ages between 18 and 25 years. The results indicate the presence of two independent factors named Hedonism and Aus- terity, from which four profiles of attitudes decided towards the indebtedness named: austere, diffuse, hedonistic and ambivalent those who might be to the base of his behaviors of acceptance or rejection of the indebtedness.

  12. CONFIABILIDAD Y VALIDEZ DE LA VERSIÓN CHILENA DE LA HARE PCL-R Chilean version of Hare PCL-R: a study of reliability and validity

    Directory of Open Access Journals (Sweden)

    Elizabeth León-Mayer

    2010-01-01

    Full Text Available Antecedentes. En Chile, al igual que en otros países latinoamericanos, diversas modificaciones judiciales y el interés de los profesionales en sistematizar sus métodos de evaluación en psicopatía promovieron la traducción, adaptación y revisión de las propiedades psicométricas de la Hare Psychopathy Checklist Revised (PCL-R. Objetivo. Evaluar aspectos de la confiabilidad y validez de la versión chilena del PCL-R en población forense masculina chilena. Material y métodos. Se realizó traducción y retrotraducción de la escala con la autorización del autor y editorial; se constituyó una muestra de 293 sujetos varones penados que aceptaron participar en la investigación. Entre otros análisis, se contrastó el diagnóstico obtenido a ciegas con la PCL-R con el aportado por el equipo técnico de Gendarmería de Chile. Resultados. La congruencia interna medida con Alfa de Cronbach fue la siguiente: total =0,91; F1= 0,86; F2 = 0,87; F3 = 0,67; F4= 0,77. Valor Kappa ambos tipos de evaluaciones = 0,804; p Background. In Chile as in other Latin American countries the introduction of the Adversarial Model in the Judicial System increased the need for the systematization of the evaluation of psychopathy, thus making necessary the translation, adaptation and revision of the psychometric properties of the Hare Psychopathy Checklist Revised. Objective. To evaluate aspects of the reliability and validity of the Chilean version of the PCL-R in Chilean male inmate population. Materials and methods. The PCL-R was translated and backtranslated with the authorization of the author and of the Editorial House. A sample of 293 inmates was constituted and the respective informed consent obtained. Several analyses were made including a blind comparison of the diagnosis made with the PCL-R and the one made by the Technical Area of Gendarmería of Chile. Results. The internal congruence measured with Crombach Alfa was: total =0,91; F1= 0,86; F2 = 0,87; F3

  13. Geographical variation in health-related physical fitness and body composition among Chilean 8th graders: a nationally representative cross-sectional study.

    Directory of Open Access Journals (Sweden)

    Michael D Garber

    Full Text Available PURPOSE: In addition to excess adiposity, low cardiorespiratory fitness (CRF and low musculoskeletal fitness (MSF are important independent risk factors for future cardio-metabolic disease in adolescents, yet global fitness surveillance in adolescents is poor. The objective of this study was to describe and investigate geographical variation in levels of health-related physical fitness, including CRF, MSF, body mass index (BMI, and waist circumference (WC in Chilean 8th graders. METHODS: This cross-sectional study was based on a population-based, representative sample of 19,929 8th graders (median age = 14 years in the 2011 National Physical Education Survey from Chile. CRF was assessed with the 20-meter shuttle run test, MSF with standing broad jump, and body composition with BMI and WC. Data were classified according to health-related standards. Prevalence of levels of health-related physical fitness was mapped for each of the four variables, and geographical variation was explored at the country level by region and in the Santiago Metropolitan Area by municipality. RESULTS: Girls had significantly higher prevalence of unhealthy CRF, MSF, and BMI than boys (p<0.05. Overall, 26% of boys and 55% of girls had unhealthy CRF, 29% of boys and 35% of girls had unhealthy MSF, 29% of boys and 44% of girls had unhealthy BMI, and 31% of adolescents had unhealthy WC. High prevalence of unhealthy fitness levels concentrates in the northern and middle regions of the country and in the North and Southwest sectors for the Santiago Metropolitan Area. CONCLUSION: Prevalence of unhealthy CRF, MSF, and BMI is relatively high among Chilean 8th graders, especially in girls, when compared with global estimates. Identification of geographical regions and municipalities with high prevalence of unhealthy physical fitness presents opportunity for targeted intervention.

  14. Assessment of biodiversity in Chilean cattle using the distribution of major histocompatibility complex class II BoLA-DRB3 allele.

    Science.gov (United States)

    Takeshima, S-N; Miyasaka, T; Matsumoto, Y; Xue, G; Diaz, V de la Barra; Rogberg-Muñoz, A; Giovambattista, G; Ortiz, M; Oltra, J; Kanemaki, M; Onuma, M; Aida, Y

    2015-01-01

    Bovine leukocyte antigens (BoLAs) are used extensively as markers for bovine disease and immunological traits. In this study, we estimated BoLA-DRB3 allele frequencies using 888 cattle from 10 groups, including seven cattle breeds and three crossbreeds: 99 Red Angus, 100 Black Angus, 81 Chilean Wagyu, 49 Hereford, 95 Hereford × Angus, 71 Hereford × Jersey, 20 Hereford × Overo Colorado, 113 Holstein, 136 Overo Colorado, and 124 Overo Negro cattle. Forty-six BoLA-DRB3 alleles were identified, and each group had between 12 and 29 different BoLA-DRB3 alleles. Overo Negro had the highest number of alleles (29); this breed is considered in Chile to be an 'Old type' European Holstein Friesian descendant. By contrast, we detected 21 alleles in Holstein cattle, which are considered to be a 'Present type' Holstein Friesian cattle. Chilean cattle groups and four Japanese breeds were compared by neighbor-joining trees and a principal component analysis (PCA). The phylogenetic tree showed that Red Angus and Black Angus cattle were in the same clade, crossbreeds were closely related to their parent breeds, and Holstein cattle from Chile were closely related to Holstein cattle in Japan. Overall, the tree provided a thorough description of breed history. It also showed that the Overo Negro breed was closely related to the Holstein breed, consistent with historical data indicating that Overo Negro is an 'Old type' Holstein Friesian cattle. This allelic information will be important for investigating the relationship between major histocompatibility complex (MHC) and disease.

  15. Geochemistry of surface sediments from the fjords of Northern Chilean Patagonia (44-47°S): Spatial variability and implications for paleoclimate reconstructions

    Science.gov (United States)

    Bertrand, Sébastien; Hughen, Konrad A.; Sepúlveda, Julio; Pantoja, Silvio

    2012-01-01

    The Patagonian fjords have a clear potential to provide high-resolution sedimentary and geochemical records of past climate and environmental change in the Southern Andes. To improve our ability to interpret these proxy records, we investigated the processes that control fjord sediment inorganic geochemistry through a geochemical, mineralogical and sedimentological analysis of surface sediment samples from the fjords of Northern Chilean Patagonia. A simple Terrestrial Index based on measurements of salinity and Fraction of Terrestrial Carbon was used to estimate the terrestrial input/river discharge at each site. Our results demonstrate that, under the cold climate conditions of Patagonia, chemical weathering is weak and the inorganic geochemical composition of the fjord sediments is primarily controlled by hydrodynamic mineralogical sorting, i.e., the intensity of river discharge. Our results suggest that the distribution of Fe, Ti and Zr in surface sediments is controlled by their association with heavy and/or coarse minerals, whereas Al is independent of hydrodynamic processes. The elemental ratios Fe/Al, Ti/Al and Zr/Al are therefore well suited for estimating changes in the energy of terrestrial sediment supply into the fjords through time. Zr/Al is particularly sensitive in proximal environments, while Fe/Al is most useful in the outer fjords and on the continental margin. In the most proximal environments, however, Fe/Al is inversely related to hydrodynamic conditions. Caution should therefore be exercised when interpreting Fe/Al ratios in terms of past river discharge. The application of these proxies to long sediment cores from Quitralco fjord and Golfo Elefantes validates our interpretations. Our results also emphasize the need to measure Al-based elemental ratios at high precision, which can be achieved using simultaneous acquisition ICP-AES technology. This study therefore constitutes a strong basis for the interpretation of sedimentary records from the

  16. [Nutritional status of preschool children attending the Chilean National Nursery Schools Council Programs (JUNJI): assessment of the agreement among anthropometric indicators of obesity and central obesity].

    Science.gov (United States)

    Gutiérez-Gómez, Yareni; Kain, Juliana; Uauy, Ricardo; Galván, Marcos; Corvalán, Camila

    2009-03-01

    Historically, the anthropometric assessment of nutritional welfare programs has been targeted to assess nutritional deficiencies based on weight-to-age and height-to-age indicators. Recently, given the increase on childhood obesity, it has been also recommended the measurement of indicators of obesity (i.e., weight-to-height) and central obesity (i.e., waist circumference). However, the agreement of these indicators in preschool children is unclear. The aims of this study were: (1) assess the nutritional status of children attending the Chilean National Nursery Schools Council Program (JUNJI); (2) assess the agreement between general and central obesity anthropometric measurements in these children. In 574 girls and 580 boys, 3.0 to 5.9 years old, we measured: weight, height, waist and hip circumference, and five skinfolds. We used the WHO 2006 growth standards to estimate Z-scores. We defined general obesity as WHZ or BAZ= 2, and central obesity as waist circumference > or =90 percentile of NHANES III. The participants were on average slightly shorter but considerably heavier and obese than the reference populations. Prevalence of general obesity was close to 16% with both indicators while prevalence of central obesity reached 15%. There was good agreement among general obesity indicators and central obesity indicators (Kappa = 0.6-0.7). In summary, we found a high prevalence of obesity and central obesity among Chilean preschool children beneficiaries of a welfare program. At this age, there was a good agreement among general obesity indicators and central obesity indicators. These results suggest that waist circumferences measurements should not be incorporated to the program.

  17. Índices de estacionalidad de los precios medios recibidos por los productores de manzanas chilenas Seasonal indices for mean prices received by Chilean apple farmers

    Directory of Open Access Journals (Sweden)

    Germán Lobos Andrade

    2005-11-01

    Full Text Available El objetivo de este trabajo fue analizar el comportamiento de los precios medios FOB (franco a bordo de manzanas frescas chilenas. A partir de este análisis, se estimaron los precios medios recibidos por los productores. Se estimaron patrones de estacionalidad ajustada de los precios recibidos por los productores de manzanas chilenas, a través del método del promedio geométrico móvil. Para las estimaciones se consideraron los precios FOB promedio mensuales desde enero de 1990 a septiembre de 2004. Los resultados mostraron: una baja estacionalidad de precios; una estabilidad de precios para junio y desde septiembre a diciembre; un valor máximo en julio. Los precios más bajos ocurrieron en abril y mayo. La principal conclusión, desde el punto de vista económico, sugiere que la rentabilidad de los huertos de manzanos podría ser incrementada, a través de un mejoramiento en el proceso de planificación de la producción.The purpose of this paper is to analyze the behavior of FOB (free on board average prices for the Chilean fresh apples. Based on this analysis, the average prices received by farmers were estimated. The patterns of seasonally adjusted price fluctuations, received by Chilean apple farmers, were estimated through average mobile geometric method. Estimates considered monthly average FOB prices from January 1990 up to September 2004. Results showed: a low seasonal price pattern; price stability for June and from September to December; the peak value in July. The lowest prices occurred in April and May. From an economic point of view, the main conclusion suggests that apple orchard profitability could be increased by an improved yield planning.

  18. Enclaves de la transición y democracia chilena Enclaves of the Transition and Chilean Democracy

    Directory of Open Access Journals (Sweden)

    PETER M SIAVELIS

    2009-01-01

    Full Text Available Algunas de las dificultades del gobierno de Michelle Bachelet y la crisis más generalizada del gobierno de la Concertación han estado cada vez más vinculadas a variables de liderazgo, al agotamiento de la coalición con respecto a sus ideales básicos, o a la necesidad de diversos tipos de reformas institucionales. Este trabajo contempla la posibilidad de que el modelo mismo de transición, que ha sido considerado como tan exitoso, podría ser el origen de las dificultades que hoy invaden tanto la Concertación como la democracia chilena en general. Además, argumenta que la interacción del sistema electoral y la estructura de la competencia postautoritaria han obligado a una política elitista que ayuda a explicar las dificultades actuales que sufre la Concertación, y ha forzado una crisis generalizada de representación. Para elaborar este argumento el autor se basa en el trabajo de Manuel Antonio Garretón, sobre los enclaves autoritarios, señalando que hay ciertos enclaves de la transición que dificultan el desarrollo de una democracia representativa de calidad. Estos enclaves de transición incluyen: el cuoteo, control de la élite en la selección de candidatos y la política electoral, dominación de los partidos en la política, formulación de políticas elitista y extrainstitucional, y la intocabilidad del modelo económico heredado del gobierno de Pinochet.Some of the difficulties of Michelle Bachelet Government and the more generalized crisis of Chile's governing Concertacián coalition have increasingly been tied to leadership variables, the exhaustion of the coalition with respect to its core ideals, or the need for various types of institutional reform. This paper considers the possibility that the very model of transition which has been lauded as so successful might actually be at the root of the difficulties that today plague both the Concertación and Chilean democracy more generally. This paper argues that the

  19. Reconstruction and modelling of the 1977 Glacial Lake Outburst Flood (GLOF) of the Engaño Lake, Chilean Patagonia.

    Science.gov (United States)

    Iribarren Anacona, Pablo; Norton, Kevin; Mackintosh, Andrew

    2015-04-01

    Floods from moraine-dammed lake failures can result in severe damage to mountain communities. GLOFs can also cause long-standing effects in riverine landscapes, due to the high intensity (i.e. great depth and high velocities) and long reach capacity of these events. GLOFs may increase in frequency as glaciers retreat and new lakes develop, highlighting the need for a better understanding of GLOF dynamics and the measures to reduce their negative outcomes. In Patagonia at least 16 moraine-dammed lakes have failed in historic time, however, data about GLOF dynamics and impacts are limited since GLOFs have mainly affected uninhabited areas and ungauged rivers. In March 1977, however, a GLOF flooded a small village (~130 inhabitants) in Chilean Patagonia. We reconstruct the dynamics of this event by semi-structured interviews, interpretation of satellite images (Landsat MSS) and two dimensional (2D) hydraulic modelling (using HEC-RAS 5.0 BETA and the SRTM v4 DEM). This reconstruction provides insights into GLOF behaviour, as well as the planning issues that led to socioeconomic consequences, which included relocation of the village. We mapped the flood extent and compiled data of flood depth and timing to constrain the 2D GLOF simulations. Modelling shows that the water released by the GLOF was in the order of 12-13 million cubic metres and that the flood reached Bahía Murta Viejo, located ~26 km from the failed lake, 2-3 hours after the moraine dam was breached. The flood lasted for about ten hours (at the village), although the peak discharge occurred after only one hour at this site. The maximum water depth at Bahía Murta Viejo was 1.5 m, however, water depths of up to 20 metres were simulated in upstream constricted reaches. The overall flood dynamics suggested by interviews and geomorphic mapping, including hydraulic ponding upstream of bedrock gorges, was well represented in the 2D simulations in spite of the coarse resolution (~80 m) of the DEM used. The

  20. Young volcanoes in the Chilean Southern Volcanic Zone: A statistical approach to eruption prediction based on time series

    Science.gov (United States)

    Dzierma, Y.; Wehrmann, H.

    2010-03-01

    Forecasting volcanic activity has long been an aim of applied volcanology with regard to mitigating consequences of volcanic eruptions. Effective disaster management requires both information on expected physical eruption behaviour such as types and magnitudes of eruptions as typical for the individual volcano, usually reconstructed from deposits of past eruptions, and the likelihood that a new eruption will occur within a given time. Here we apply a statistical procedure to provide a probability estimate for future eruptions based on eruption time series, and discuss the limitations of this approach. The statistical investigation encompasses a series of young volcanoes of the Chilean Southern Volcanic Zone. Most of the volcanoes considered have been active in historical times, in addition to several volcanoes with a longer eruption record from Late-Pleistocene to Holocene. Furthermore, eruption rates of neighbouring volcanoes are compared with the aim to reveal possible regional relations, potentially resulting from local to medium-scale tectonic dynamics. One special focus is directed to the two currently most active volcanoes of South America, Llaima and Villarrica, whose eruption records comprise about 50 historical eruptions over the past centuries. These two front volcanoes are considered together with Lanín Volcano, situated in the back-arc of Villarrica, for which the analysis is based on eight eruptions in the past 10 ka. For Llaima and Villarrica, affirmed tests for independence of the repose times between successive eruptions permit to assume Poisson processes; which is hampered for Lanín because of the more limited availability of documented eruptions. The assumption of stationarity reaches varying degrees of confidence depending on the time interval considered, ameliorating towards the more recent and hence probably more complete eruption record. With these pre-requisites of the time series, several distribution functions are fit and the goodness of

  1. The “Good Americans”. U. S. Solidarity Networks for Chilean and Argentinean refugees (1973-1983

    Directory of Open Access Journals (Sweden)

    Benedetta Calandra

    2011-01-01

    period. Despite secondary actors, academics, social activists, rabbis, lutherans, catholic priests were, instead, very active in terms of creating  counter-information and even lobby on Capitol Hill to build a new sensitivity on human rights issues for Latin America and eventually a specific Refugees Program for Chilean and Argentinians fleeing from the dictatorships. The article delve into the solidarity network they were able to make, suggesting also how the help provided was also the result, a sort of ‘symptom’, of an internal (post-Watergateand foreign (post-Vietnam political crisis.Keywords: Chile, Argtentina, Salvador Allende, Pinochet, Southern Cone military regimes.

  2. The “Good Americans”. U. S. Solidarity Networks for Chilean and Argentinean refugees (1973-1983

    Directory of Open Access Journals (Sweden)

    Benedetta Calandra

    2010-01-01

    period. Despite secondary actors, academics, social activists, rabbis, lutherans, catholic priests were, instead, very active in terms of creating  counter-information and even lobby on Capitol Hill to build a new sensitivity on human rights issues for Latin America and eventually a specific Refugees Program for Chilean and Argentinians fleeing from the dictatorships. The article delve into the solidarity network they were able to make, suggesting also how the help provided was also the result, a sort of ‘symptom’, of an internal (post-Watergateand foreign (post-Vietnam political crisis.Keywords: Chile, Argtentina, Salvador Allende, Pinochet, Southern Cone military regimes.

  3. Forecasting the impact of global changes on the water resources of a mountainous catchment in the Chilean Andes

    Science.gov (United States)

    Ruelland, D.; Campéon, C.; Dezetter, A.; Jourde, H.

    2012-04-01

    This study aims to simulate the complex interrelationships between climate forcing, human pressure and dynamics of groundwater and surface water of the upper Elqui catchment (5 660 km2) in the Chilean Andes. The water resources of this mountainous, semi-arid catchment has been undergoing a growing pressure because of high climate variability and of the economic mutations of various sectors (agriculture, tourism), which have impacted water availability of the area. Due to the agriculture-based development in the region, water scarcity is thus a matter of great concern for this basin. Hydrological simulations were performed with a conceptual model that takes into account a shallow reservoir supplied by precipitation and feeding evapotranspiration, surface/sub-surface runoff and infiltration, and (ii) a deep reservoir fed by infiltration and generating the baseflow. A third reservoir, in which fluxes are controlled by temperature, has been introduced to account for the snowmelt regime of the catchment. A 30-year period (1979-2008) was chosen to capture long-term hydro-climatic variability due to alternating ENSO and LNSO events. Then water uses (dam functioning, agricultural and domestic withdrawals) were integrated into the model. The model was calibrated and validated with streamflow data on the basis of a multi-objective function that aggregates a variety of goodness-of-fit criteria. Prospective climatic and anthropogenic scenarios were finally elaborated and forced into the model in order to propose midterm (2050 horizon) simulations. The model correctly reproduces the observed discharge at the basin outlet. Depending on the modelling complexity, NSE coefficients are about 0.82-0.90 over the calibration period (1979-1990) and 0.78-0.84 over the validation period (1991-2008). The volume error between observation and simulation is lower than 15% over the whole period studied. The dynamics of both the water level in the deep conceptual reservoir and the water table

  4. Paleoseismology of Upper Plate Faults in the Chilean Covergent Margin: Insights from 10BE and OSL Dating

    Science.gov (United States)

    Gonzalez, G.; Cortes, J. A.; Binnie, S.; Robinson, R.; Toledo, C.

    2010-12-01

    The Chilean convergent margin is the locus of most of the largest subduction earthquakes recorded in history. Slip deficit along this plate boundary is absorbed by elastic deformation of the upper plate. Numerical models and geodetic data suggest a fully elastic behaviour of the overriding crust and that deformation is balanced between inter- and co-seismic phases earthquake cycle; thus, non permanent deformation should be expected. However,the topographic surface of the coastal area, especially in the arid northern region of Chile (18°-26°S), shows clear evidences of permanent deformation expressed as kilometric-long fault scarps produced by normal faults. It suggests that normal faulting is a regional-scale extended process characteristic of the near surface structure of the upper plate. Some unanswered, yet critical, questions in this plate boundary are the present activity of these faults and the causal relationship between them and the subduction earthquake cycle. In order to answer these questions we conducted a paleoseismological project aimed at understanding the most recent activity of the upper plate faults in northern Chile. Here, we present the first results of two main faults located nearby the city of Antofagasta and the Mejillones Peninsula. One of these faults corresponds to the main strand of the Atacama Fault System whereas the other is the Mejillones Fault. At least 18 trenches were excavated for paleoseismological logging across these faults. OSL samples were extracted from wedge shaped colluvium and 10Be exposures ages were determined in alluvial surfaces displaced by the faults. Our results indicate that fault scarps were formed during Late Pleistocene-Holocene with a fault slip rate of 0.3 to 0.6 m/ky. Furthermore, we demonstrated that these faults generated large Mw~7 earthquakes with recurrence interval of many thousands years. In the Mejillones Fault, we determined that the elapsed time since the last large earthquake Mw~6.7 is ~3 ky BP

  5. Dynamics of rock glaciers and debris-covered glaciers in the Central Chilean Andes over the last 50 years

    Science.gov (United States)

    Bodin, Xavier; Brenning, Alexander; Rojas Marchini, Fernanda

    2010-05-01

    temperature ranged from 7.9°C at 2987 m asl to 0.8°C at 4020 m asl, displaying a linear relationship with altitude similar to the air temperature lapse rate and that the snow cover lasted between 3 and 8 months. A negative winter thermal equilibrium was observed only at the highest (4020 m asl) site, suggesting the presence of perennial frozen ground underneath. GPS monitoring of the surface displacement between 2004 and 2009 revealed horizontal velocities ranging from 0.25 to 0.5 m/yr on the rock glaciers and the debris-covered glacier. The latter is affected by stronger vertical lowering (12-22 cm/yr), which is attributed to the intense downwasting and thermokarst development. As depicted by our study, the evolution of the cryosphere in the Central Chilean Andes during the last 50 years highlights the very different responses of glacier and permafrost to climate change. It also suggests an increasing relative importance of debris-covered glaciers and especially rock glaciers as stores of water compared to uncovered glaciers and thus ongoing changes in geomorphic and hydrological processes that still need to be investigated.

  6. Organ Donation

    Science.gov (United States)

    Organ donation takes healthy organs and tissues from one person for transplantation into another. Experts say that the organs ... and bone marrow Cornea Most organ and tissue donations occur after the donor has died. But some ...

  7. Características hematológicas y patológicas de cerdos inoculados experimentalmente con el aislado chileno del virus síndrome respiratorio y reproductivo porcino Haematological and pathological findings of pigs experimentally inoculated with a Chilean isolate of porcine reproductive and respiratory syndrome virus

    Directory of Open Access Journals (Sweden)

    E Ramírez

    2006-01-01

    nodes. Microscopic lesions were characterized by the presence of interstitial pneumonia, depletion and necrosis in lymphoid organs, rhinitis, hepatitis, myocarditis and non-purulent encephalitis. These findings suggest that the Chilean isolate of the vPRRS to a strain with a low virulence.

  8. Characterization of Chilean Higher Education Institutions (HEI): an approach towards a future model of university (Main reforms applied in the Latin-American higher education model that made an impact in the commercialization of the universities)

    OpenAIRE

    Carmona-López, Rafael Jaime; Toro-Jaramillo, Iván Darío; Riascos-Gonzales, José Antonio

    2014-01-01

    The research context that this article seeks to show the different models of college, from the evolution and development of universities and their management in Latin America, particularly in Chile, and how they affect the development of societies, both past and contemporary, highlighting some similar and different characteristics that they have. It should be noted that the Chilean model of education has been considered to have a great impact on some countries in Latin America, especially in ...

  9. Expandiendo el espectro mutacional en pacientes chilenos con fibrosis quística Expanding the CFTR mutation spectrum in Chilean patients with cystic fibrosis

    Directory of Open Access Journals (Sweden)

    Marcos Vásquez D

    2012-06-01

    -9000 newborns in Chile. More than 1,800 different mutations have been identified in CFTR gene. The available molecular diagnosis analyzes the 36 most frequent mutations in Caucasian population, with an overall detection rate of80-85%, but with a much lower detection rate in Chilean patients of 42%. To analyze which other mutations are present in Chilean patients, we conducted an extensive analysis by direct DNA sequencing of coding sequences of the CFTR gene. Methods: Forty eight Chilean patients with clinical diagnosis of CF and one mutated allele in the CFTR gene identified, were studied by direct sequence analysis of exons 6, 7, 14, 19 and 20 of the CFTR gene. Results: We found 3 different mutations in 14 cases that had not been previously identified in Chilean patients. Four patients have a deletion of two nucleotides (c.2462_2463delGT/p.Ser821ArgfsX4 in exon 14, which is predicted to cause a frameshift and a premature stop codon. Eight patients have c.3196C>T mutation in the exon 20 and 2 cases has c.3039delC mutation in the exon 19. Both mutations had been previously described in other populations. Discussion: The identification of these mutations has notably increased the detection rate in our patients. Adapting the molecular diagnosis method by including these three mutations should increase the CF detection rate in Chilean patients. This analysis will improve CF diagnosis and allow an adequate genetic counseling to the families.

  10. Elevation and vegetation influences on soil properties in Chilean Nothofagus forests Influencia de la elevación y la vegetación sobre las propiedades del suelo de los bosques chilenos de Nothofagus

    Directory of Open Access Journals (Sweden)

    KELLY L.M DECKER

    2003-09-01

    Full Text Available We measured net nitrogen mineralization, net nitrification, proportional nitrification, and total inorganic nitrogen, available phosphorus, and soil organic carbon in five Andean forested stands in an attempt to resolve the relative influence of elevation and forest canopy composition on soil organic matter and nutrient dynamics in this ecosystem type. Our five forested study sites were within a contiguous Nothofagus forest that ranged from 1,280 to 1,700 m elevation in the central Chilean Andes. The five sites consisted of three single species stands, one each of the low elevation deciduous N. obliqua, the evergreen N. dombeyi, or the high elevation deciduous N. pumilio, as well as two mixed evergreen-deciduous stands. There was no statistically significant relationship of nitrogen mineralization or phosphorus with elevation. In contrast, there were statistically significant, though weak, negative relationships between elevation and net nitrification, proportional nitrification, soil pH and organic carbon. In general, soils from the N. obliqua stand had higher levels/rates of nitrification, soil organic carbon content, soil pH, and plant available phosphorus than soils form the other single species stands. In contrast, the N. dombeyi and N. pumilio stands had lower rates of nitrification and soil pH than did the N. obliqua stand. The evergreen-deciduous mixed stands tended to be intermediate in soil properties. These results demonstrate that vegetation, particularly the balance of evergreen and deciduous species, exerts stronger control over soil chemical and biochemical properties than the climate variations induced by 350 m in elevation, even where the evergreen and deciduous species are closely-related angiosperms.Medimos la mineralización neta de nitrógeno, la nitrificación, el total de nitrógeno disponible, el fósforo disponible y el carbono orgánico del suelo en cinco rodales forestales andinos con el propósito de separar la

  11. Perfil bibliométrico de la odontología chilena, 2001-2010 Bibliometric profile of chilean dentistry, 2001-2010

    Directory of Open Access Journals (Sweden)

    R Cartes-Velásquez

    2012-04-01

    Full Text Available Introducción: Caracterizar la producción científica personal, institucional o nacional es una necesidad creciente para comprender y mejorar la generación de conocimiento. El objetivo de este trabajo es definir el perfil bibliométrico de la odontología chilena en la última década. Metodología: En la plataforma Web of Knowledge, mediante un algoritmo se realizó la búsqueda de las publicaciones odontológicas chilenas ISI. Los datos: número de publicaciones; factor de impacto (FI; Top-10 de: autores, instituciones, revistas y países de coautoría se muestran para el período 2001-2010 y sus quinquenios. Resultados: El número total de publicaciones fue de 195, con una media anual de 12.8 y un FI de 1.18 para el primer quinquenio, cifras aumentadas a 26.2 (105% y 1.82 (54% respectivamente en el segundo, pero con una disminución del FI en el último bienio a 1.73. En cuanto a autores destaca Gamonal; en instituciones la UChile seguida desde muy atrás por la UdeC y otras que aumentaron su producción como UFro, UMayor, UValpo y PUC; en cooperación internacional lo hacen España, USA, Brasil y Suecia, pero con porcentajes menores; en revistas destacan los de periodoncia y 2 publicaciones nacionales no odontológicas en el segundo quinquenio. Discusión: Aunque el aumento de la producción es claro durante la última década, aún está muy por debajo de los grandes productores internacionales y preocupa la disminución del impacto en los últimos 2 años, la alta concentración en la producción (UChile y la baja cooperación internacional, situaciones que deben ser resueltas en pos de mantener el crecimiento.Introduction: There is an increasing need to characterize personal, institutional or national scientific output in order to understand and improve the generation of knowledge. The aim of this paper is to define the bibliometric profile of Chilean dentistry for the last decade. Methodology: A search was performed in WOK platform

  12. Participación chilena en reuniones IADR mundiales, 2001-2012 Chilean participation in IADR general sessions, 2001-2012

    Directory of Open Access Journals (Sweden)

    R Cartes-Velásquez

    2013-04-01

    dental researchers affiliated to Chilean institutions in IADR general sessions over 2001-2012 period. Methodology: Bibliometric study. Search was performed in the web platform Conference Exchange™ for IADR, for general sessions from 2001 to 2012, for the term "Chile", including all presentations with at least one author with an affiliation to some Chilean institutions. The following variables were evaluated: Session, author, institution, international cooperation and topic area. Results: 158 presentations were found, annual average of 13.2 (15.3, in 87.3% there were 1 to 6 authors per presentation. Major participant institution was Universidad de Chile (43%, followed by Universities of Talca (15.8%, Finis Terrae (11.4% and los Andes (10.8%; topics with more participations were Periodontology (13.9%, Cariology (12.7% and Epidemiology (12.7%; 26% of the presentations had participation of foreign institutions. Discussion: These results reinforce previous bibliometrics reports, but highlight two private universities in the top positions. The assessment of participation in IADR General Sessions is an important index of scientific production of Chilean dentistry, complementing the bibliometric assessments focused on ISI publications, allowing a better understanding of knowledge generation in this field.

  13. State of stress and crustal fluid migration related to west-dipping structures in the slab-forearc system in the northern Chilean subduction zone

    Science.gov (United States)

    Salazar, P.; Kummerow, J.; Wigger, P.; Shapiro, S.; Asch, G.

    2017-03-01

    Previous studies in the forearc of the northern Chilean subduction zone have identified important tectonic features in the upper crust. As a result of these works, the West Fissure Fault System (WFFS) has recently been imaged using microseismic events. The WFFS is the westward-dipping, sharp lower boundary of the northern Chilean forearc and is geometrically opposed to subduction of the Nazca plate. The present article builds on this previous work and is novel in that it characterizes this structure's stress distribution using focal mechanisms and stress tensor analysis. The results of the stress tensor analysis show that the state of stress in the WFFS is related to its strike-slip tectonic context and likely represents a manifestation of local forces associated with the highest areas in the Andes. Two seismic clusters have also been identified; these clusters may be associated with a blind branch of the WFFS. We studied these clusters in order to determine their sources and possible connection with fluid migration across the upper plate. We observed that the two clusters differ from one another in some regards. The central cluster has characteristics consistent with an earthquake swarm with two clearly identifiable phases. Conversely, the SW cluster has a clear main shock associated with it, and it can be separated into two subclusters (A and A΄). In contrast, similarities among the two clusters suggest that the clusters may have a common origin. The b-values for both clusters are characteristic of tectonic plate boundaries. The spatial spreading, which is approximately confined to one plane, reflects progressive growth of the main fracture underlying the swarm and subcluster A. We also find that earthquakes themselves trigger aftershocks near the borders of their rupture areas. In addition, the spatio-temporal migration of hypocentres, as well as their spatial correlation with areas that are interpreted to be fluid migration zones, suggest that there is a close

  14. Genetic Structure and Diversity of Four Chilean Sheep Breeds Estructura Genética y Diversidad de Cuatro Razas Ovinas Chilenas

    Directory of Open Access Journals (Sweden)

    Rodrigo de la Barra

    2010-12-01

    Full Text Available Chilean sheep breeds have a significant founder effect since they descend from very few parents, in some cases population inbreeding has increased and in others there have been significant differentiation processes as compared to their original population. The objective of this study was to estimate the current status of genetic diversity in sheep herds, which comprise the main sheep breeds in Chile, using molecular methods. Animals from four breeding herds were sampled and analyzed. The breeds studied were Corriedale, Suffolk Down, Romney Marsh and Chilota, these are the predominant numerical pure breeds in Chile. From each breed population 40 animals were sampled. Genetic characterization was done using nine microsatellite molecular markers (SSR recommended by FAO-ISAG. Results showed that in the Chilean sheep herds there are low genetic complementarities among breeds and a high risk of losing genetic diversity due to inbreeding in Chilota and Romney Marsh breeds.Las razas ovinas presentes en Chile presentan un importante efecto fundador, al descender de un reducido número de progenitores. En algunos casos se sospecha que ha aumentado el grado de consanguinidad poblacional, mientras que en otros se observan procesos significativos de diferenciación respecto a sus poblaciones de origen. El objetivo del presente estudio fue estimar el estado actual de la diversidad genética de los planteles que gestionan las principales razas utilizadas en la ganadería ovina chilena. Para ello se utilizaron las razas Corriedale, Sufolk Down, Romney Marsh y Chilota, dado que son las predominantes en Chile como poblaciones puras. Se analizaron 40 animales de cada raza, pertenecientes a cuatro planteles de reproductores. Para la caracterización genética de los animales se utilizaron nueve marcadores moleculares de tipo microsatélite (SSR recomendados por FAO-ISAG. Los resultados indican una baja complementariedad genética entre las razas ovinas

  15. Antimicrobial Susceptibility of Flavobacterium psychrophilum from Chilean Salmon Farms and their Epidemiological Cut-off Values using Agar Dilution and Disk Diffusion Methods

    Directory of Open Access Journals (Sweden)

    Claudio D Miranda

    2016-11-01

    Full Text Available Flavobacterium psychrophilum is the most important bacterial pathogen for freshwater farmed salmonids in Chile. The aims of this study were to determine the susceptibility to antimicrobials used in fish farming of Chilean isolates and to calculate their epidemiological cut-off (COWT values. A number of 125 Chilean isolates of F. psychrophilum were isolated from reared salmonids presenting clinical symptoms indicative of flavobacteriosis and their identities were confirmed by 16S rRNA polymerase chain reaction. Susceptibility to antibacterials was tested on diluted Mueller-Hinton by using an agar dilution MIC method and a disk diffusion method. The COWT values calculated by Normalised Resistance Interpretation (NRI analysis allow isolates to be categorized either as wild-type fully susceptible (WT or as manifesting reduced susceptibility (NWT. When MIC data was used, NRI analysis calculated a COWT of ≤ 0.125 μg mL-1, ≤ 2 μg mL-1 and ≤ 0.5 μg mL-1 for amoxicillin, florfenicol and oxytetracycline, respectively. For the quinolones, the COWT were ≤1 μg mL-1, ≤ 0.5 μg mL-1 and ≤ 0.125 μg mL-1 for oxolinic acid, flumequine and enrofloxacin respectively. The disc diffusion data sets obtained in this work were extremely diverse and were spread over a wide range. For the quinolones there was a close agreement between the frequencies of NWT isolates calculated using MIC and disc data. For oxolinic acid, flumequine and enrofloxacin the frequencies were 45, 39 and 38% using MIC data, and 42, 41 and 44%, when disc data were used. There was less agreement with the other antimicrobials, because NWT frequencies obtained using MIC and disc data respectively, were 24% and 10% for amoxicillin, 8% and 2% for florfenicol and 70% and 64% for oxytetracycline. Considering that the MIC data was more precise than the disc diffusion data, MIC determination would be the preferred method for susceptibility testing for this species and the NWT frequencies

  16. [Scale of organizational learning in schools. Organizational learning is a key element for the development of organizations].

    Science.gov (United States)

    López, Verónica; Ahumada, Luis; Olivares, Rodrigo; González, Alvaro

    2012-05-01

    Organizational learning is a key element for the development of organizations. School organizations are not exempt from this challenge and they currently face a highly dynamic and demanding context of education policies that emphasize the school's ability to learn. Thus, research on organizational learning in educational contexts requires valid instruments that are sensitive to the specifics of schools as organizations. In this study, we adapted and validated a scale of organizational learning in a sample of 119 Chilean municipal schools (N= 1,545). The results suggest a structural model made up of three factors: culture of learning, strategic clarity, and group learning. These factors predicted dimensions of educational achievement, as measured through the National Assessment System of Educational Achievement (SNED). Results are discussed in view of the literature on school improvement.

  17. 智利共和国矿业投资法律制度概述%The general review of Chilean mining investment legal system

    Institute of Scientific and Technical Information of China (English)

    杨贵生; 沈自新; 陈漠

    2011-01-01

    文章以律师法律实务角度,主要从及矿业特许权管理体系、外商投资法律体系以及公司法律体系三个方面切人,深入浅出地为投资者提供了具有时效性和实用性的相关法律信息,对智利的矿业投资环境进行了一个较为系统的介绍,并给出了投资智利矿业的若干建议.%From the view of lawyers, this article consists of the introduction of Chile Mining Code and Mining concessions of Chile. foreign investment law and the legal system of mining company, and authors make a comprehensive and systematical introduction of the Chilean mining investment legal system, and provide the investors with up - dated and useful information and advice.

  18. Can generalized distribution factors lead to ''objective'' transmission toll allocations? Some lessons from the recent Chilean experience

    Energy Technology Data Exchange (ETDEWEB)

    Galetovic, Alexander [Facultad de Ciencias Economicas y Empresariales, Universidad de los Andes, Av. San Carlos de Apoquindo 2200, Santiago (Chile); Palma-Behnke, Rodrigo [Department of Electrical Engineering, University of Chile, Av. Tupper 2007, Santiago (Chile)

    2008-03-15

    How to charge for transmission lines in a liberalized electricity market is still a conceptually unresolved issue and the literature offers many methods to determine who ''uses'' a given line and how to allocate tolls among users. But there seems to be some agreement that once a given method is chosen, calculating use and toll allocations is a mere technical matter. We suggest, by contrast that this belief is not warranted. We apply one power flow identification method - generalized load distribution factors - to allocate transmission tolls among the users of the Chilean transmission system and show that almost any allocation of tolls can be achieved by suitably choosing parameter values. Essentially, the method affords many degrees of freedom to the person responsible for setting the parameters needed to apply it. We argue that this suggests that setting parameter values is a central feature of transmission regulation. Moreover, our results suggest that an allocation method cannot answer the key unresolved question in the literature: what is the structure of tolls that gives economically adequate expansion incentives. (author)

  19. Geological records of recent and historical ruptures of the Chilean subduction zone: a latitudinal transect of earthquake deformation and tsunami inundation

    Science.gov (United States)

    Hocking, Emma; Garrett, Ed

    2016-04-01

    Historical and instrumental records provide evidence for multiple great earthquakes and tsunami along the Chilean megathrust. However, as the written history of Chile only commenced with Spanish colonisation in the mid-16th century, these records are too short to adequately assess the recurrence of the greatest magnitude seismic hazards, and instead we must rely on geological investigations of sediments to obtain long-term patterns. Here we present the results from recent palaeoseismic investigations in south-central Chile, assessing vertical deformation associated with two of the most recent ruptures of the Valdivia seismic segment and the lateral extent of the associated tsunami deposits. We present data from tidal marshes in a north-south transect between Concepción and Isla de Chiloé, including Chaihuin, Pucatrihue, Llico and Chucalén, where sediments record evidence of the 1960 and up to three earlier events. We quantify vertical deformation using a diatom transfer function based on an expanded modern training set, and show variability in the magnitude of deformation both between events at the same site, and between sites for the same event. The deformation episodes are accompanied by the occurrence of coarse sand layers with thicknesses between 0.5 and 30 cm. We use sedimentological characteristics and diatom compositions to infer a tsunamigenic origin for these sand layers.

  20. Origin of the regional stress field along the Liquine-Ofqui Fault Zone (LOFZ), Southern Chilean Andes by means of FE Simulation

    Institute of Scientific and Technical Information of China (English)

    Md. Rafiqul Islam

    2009-01-01

    The Liquine-Ofqui Fault Zone (LOFZ) of southern Chilean Andes is one of the largest active strike-slip fault zones. There is an ongoing debate regarding the origin of the stress field along the LOFZ due to its complex geometry. This paper represents a study of the origins of the LOFZ regional stress field. Stress fields are calculated by finite element (FE) analysis. The two possible stress origins, i.e., oblique plate convergence and ridge collision/indenter tectonics of Chile ridge against Peru-Chile trench, have been emphasized in the present study. Three types of boundary conditions for the three particular models have been applied to calculate stress fields. Models are assumed to be elastic and plane stress condition. Modeling results are presented in terms of four parameters, i. e., orientation of maximum horizontal stress (σHmax), displacement vector, strain distribution, and maximum shear stress (τmax) contour line within the model. The results of the first model with oblique plate convergence show inconsistency between the geometric shape of the LOFZ and the distribution of the four parameters. Although more realistic results are obtained from the second model with normal ridge collision, there are few coincident in the LOFZ geometry and regional stress field. The third model with normal and oblique ridge collision is reasonable in understanding the origin of stress field and geometrical condition in the lithosphere of the LOFZ.

  1. Analysis of the most relevant anthropometric dimensions for school furniture selection based on a study with students from one Chilean region.

    Science.gov (United States)

    Castellucci, H I; Arezes, P M; Molenbroek, J F M

    2015-01-01

    Most of the worldwide standards used for furniture selection suggest the use of the Stature of the school children, assuming that all the other anthropometric characteristics will also be appropriate. However, it is important to consider that students' growth differ with age. The aim of this study is to determine if Popliteal Height can be used as a better, or more adequate, measure for classroom furniture selection when comparing with Stature. This study involved a representative group of 3046 students from the Valparaíso Region, in Chile. Regarding the methodology, eight anthropometric measures were gathered, as well as six furniture dimensions from the Chilean standard. After assigning the level of school furniture using Stature and Popliteal Height to each of the students, six mismatch equations were applied. The results show that when using Popliteal Height, higher levels of match were obtained for the two more important furniture dimensions. Additionally, it also presents a better cumulative fit than Stature. In conclusion, it seems that Popliteal Height can be the most accurate anthropometric measure for classroom furniture selection purposes.

  2. Validation of the short posttraumatic stress disorder rating interview (SPRINT-E in a sample of people affected by F-27 Chilean earthquake and tsunami

    Directory of Open Access Journals (Sweden)

    Marcelo C. Leiva-Bianchi

    2013-05-01

    Full Text Available On February 27, 2010 (F-27 there was an earthquake and a tsunami m Chile that has caused a great impact on the mental health of the population of this country, specifically in the increase of cases of posttraumatic stress disorder (PTSD. In view of count better instruments to measure PTSD was applied for the first time since it was created, the SPRINTE scale in a population other than the U.S., specifically in 291 people who experienced the F-27. The analysis of reliability (α=. 916, concurrent validity (all items significantly correlated with the scale used as a criterion DTS and construct validity (CMIN=2.237, RMSEA=.092, NFI=.901, CFI=.942 and PNFI=.704 for two-factor model indicate that SPRINT-E is a valid and reliable scale to measure PTSD in this population. Finally, some reflections about new factor structure discovered in this analysis, which is consistent with the meaning of items and with theoretical models such as covert stimuli. It also reflects on the usefulness of a brief scale, proven valid and very good psychometric characteristics in a Spanish-speaking population prone to natural disasters such as Chilean F-27, Japan (March 11, 2011 or Spain (May 11, 2011.

  3. Contraste empírico del CAPM en el mercado accionario chileno Empirical test of the CAPM in the Chilean stock market

    Directory of Open Access Journals (Sweden)

    Carlos A Díaz Contreras

    2012-08-01

    Full Text Available El modelo de valoración de activos de capital (Capital Asset Pricing Model - CAPM es uno de los modelos más utilizados en la práctica para determinar el premio por riesgo de un activo individual o cartera. El presente trabajo realiza un contraste empírico del CAPM en el mercado accionario chileno, empleando las metodologías de serie temporal y de eficiencia media-varianza, basada en la estimación por el método generalizado de momentos (MGM. El contraste se llevó a cabo usando rentabilidades mensuales de títulos individuales para el periodo 1997-2007 y usando una cartera de igual ponderación como proxy para la cartera de mercado. Los resultados de todas las metodologías empleadas muestran que el CAPM explica satisfactoriamente el corte transversal de retornos esperados en Chile.The capital asset pricing model (CAPM is one of the most used models in practice to determine the risk premium of an individual asset or portfolio. This paper tests the CAPM in the Chilean stock market using the time series methodology and the generalized method of moments to test mean-variance efficiency. This work uses monthly returns of individual stocks between 1997 and 2007 and considers an equally weighted portfolio as a proxy for the market portfolio. The results show that the CAPM explains successfully the cross section of expected stock returns in Chile.

  4. VIGENCIA DEL PRINCIPIO DE LA BUENA FE EN EL DERECHO DEL TRABAJO CHILENO Validity of the principle of good faith in the Chilean labor law

    Directory of Open Access Journals (Sweden)

    Pedro Irureta Uriarte

    2011-01-01

    Full Text Available La buena fe es un principio general del Derecho que, en el ámbito laboral, encuentra especial aplicación en la figura del contrato de trabajo. La buena fe es predicable tanto para el trabajador como para el empleador, y se verifica en los estadios previos a la contratación, durante el desarrollo mismo del contrato, así como al momento de la extinción. El Código del Trabajo chileno, sin referirse expresamente a este principio, ha terminado incorporando sus exigencias en distintas figuras laborales; cuestión que no impide que el núcleo esencial del principio se despliegue en toda su magnitud al momento de configurar los derechos y obligaciones de cada parte.Good faith is a general principle of law which, in the workplace, finds special application in the employment contract. This principle acts both from the worker and the employer and has to be present in stages prior to recruitment, during the fulfillment of the contract and the date of termination. The Chilean Labour Code, without explicitly referring to this principle, has incorporated its work demands in different shapes. This special technique does not interfere with a direct spillover of the legal core of that principle when the legal order configures the rights and obligations of each party.

  5. Integrative taxonomic re-description of Halisarca magellanica and description of a new species of Halisarca (Porifera, Demospongiae) from Chilean Patagonia.

    Science.gov (United States)

    Willenz, Philippe; Ereskovsky, Alexander V; Lavrov, Dennis V

    2016-12-21

    A series of recent expeditions in fjords and canals of Southern Chilean Patagonia allowed the re-collection of Halisarca magellanica Topsent, 1901 and the discovery of a new species, Halisarca desqueyrouxae sp. nov. The material studied was collected at depths ranging from 3 to 30 m at latitudes comprised between 42° and 49°S. Both species share the same habitat and show a morphological plasticity, but differ in their colour. Halisarca magellanica is bright pink to whitish with three morphs whereas H. desqueyrouxae sp. nov. is light brown to beige with two morphs. An extensive investigation in TEM and SEM reveals several differences among cell types with inclusions between both species. Three distinct spherulous cells occur. Type 1 is shared by both species, Type 2 is occasional in H. magellanica but absent from H. desqueyrouxae sp. nov. Type 3 is rare in H. magellanica and occurs abundantly in half of the specimens of H. desqueyrouxae sp. nov. Granular cells are shared by both species but do not occur in all specimens. Microgranular cells are characteristic of H. magellanica. Both species also clearly differ by their endobiotic bacteria. Phylogenetic analysis of cox1 sequences places H. magellanica as a sister group to all other previously published Halisarca species sequences (9.1-9.7% difference) except H. harmelini, while H. desqueyrouxae sp. nov. is placed as a sister group to H. dujardini (2.3% difference).

  6. Mineral mapping on the Chilean-Bolivian Altiplano using co-orbital ALI, ASTER and Hyperion imagery: Data dimensionality issues and solutions

    Science.gov (United States)

    Hubbard, B.E.; Crowley, J.K.

    2005-01-01

    Hyperspectral data coverage from the EO-1 Hyperion sensor was useful for calibrating Advanced Land Imager (ALI) and Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) images of a volcanic terrane area of the Chilean-Bolivian Altiplano. Following calibration, the ALI and ASTER datasets were co-registered and joined to produce a 13-channel reflectance cube spanning the Visible to Short Wave Infrared (0.4-2.4 ??m). Eigen analysis and comparison of the Hyperion data with the ALI + ASTER reflectance data, as well as mapping results using various ALI+ASTER data subsets, provided insights into the information dimensionality of all the data. In particular, high spectral resolution, low signal-to-noise Hyperion data were only marginally better for mineral mapping than the merged 13-channel, low spectral resolution, high signal-to-noise ALI + ASTER dataset. Neither the Hyperion nor the combined ALI + ASTER datasets had sufficient information dimensionality for mapping the diverse range of surface materials exposed on the Altiplano. However, it is possible to optimize the use of the multispectral data for mineral-mapping purposes by careful data subsetting, and by employing other appropriate image-processing strategies.

  7. A Comparative Analysis of Coastal and Open-Ocean Records of the Great Chilean Tsunamis of 2010, 2014 and 2015 off the Coast of Mexico

    Science.gov (United States)

    Zaytsev, Oleg; Rabinovich, Alexander B.; Thomson, Richard E.

    2016-12-01

    The three great earthquakes off the coast of Chile on 27 February 2010 (Maule, M w 8.8), 1 April 2014 (Iquique, M w 8.2) and 16 September 2015 (Illapel, M w 8.3) generated major transoceanic tsunamis that spread throughout the Pacific Ocean and were measured by numerous coastal tide gauges and open-ocean DART stations. Statistical and spectral analyses of the tsunami waves from the events recorded on the Pacific coast of Mexico enabled us to estimate parameters of the waves along the coast and to compare statistical features of the events. We also identified three coastal "hot spots" (sites having maximum tsunami risk): Puerto Angel, Puerto Madero and Manzanillo. Based on the joint spectral analyses of the tsunamis and background noise, we have developed a method for using coastal observations to determine the underlying spectrum of tsunami waves in the deep ocean. The "reconstructed" open-ocean tsunami spectra are in close agreement with the actual tsunami spectra evaluated from direct analysis of the DART records offshore of Mexico. We have further used the spectral estimates to parameterize the energy of the three Chilean tsunamis based on the total open-ocean tsunami energy and frequency content of the individual events.

  8. Transnational Organizing

    DEFF Research Database (Denmark)

    Henriksen, Lasse Folke; Seabrooke, Leonard

    2016-01-01

    should be treated and governed by organizations. Using network and career sequences methods, we provide a case of transnational organizing through professionals who attempt issue control and network management on transnational environmental sustainability certification. The article questions how...

  9. Organic chemistry

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2003-08-15

    This book with sixteen chapter explains organic chemistry on linkage isomerism such as alkane, cycloalkane, alkene, aromatic compounds, stereo selective isomerization, aromatic compounds, stereo selective isomerization, organic compounds, stereo selective isomerization, organic halogen compound, alcohol, ether, aldehyde and ketone, carboxylic acid, dicarboxylic acid, fat and detergent, amino, carbohydrate, amino acid and protein, nucleotide and nucleic acid and spectroscopy, a polymer and medical chemistry. Each chapter has introduction structure and characteristic and using of organic chemistry.

  10. Distribución de macroinvertebrados (Plecoptera y Aeglidae en ecosistemas fluviales de la Patagonia chilena: ¿Muestran señales biológicas de la evolución geomorfológica postglacial? Distribution of macroinvertebrates (Plecoptera and Aeglidae in fluvial ecosystems of the Chilean Patagonia: Do they show biological signals of the postglacial geomorphological evolution?

    Directory of Open Access Journals (Sweden)

    CLAUDIO VALDOVINOS

    2010-06-01

    Full Text Available La Patagonia chilena incluye uno de los sistemas hídricos más complejos de Sudamérica y uno de los menos intervenidos del mundo, los cuales fueron intensamente modelados por la actividad glacial del Cuaternario. El objetivo de este estudio fue determinar si en esta área existen zonas de endemismo de macroinvertebrados bentónicos fluviales y analizar los patrones de diversidad de organismos de alta (Plecoptera y baja vagilidad (Aeglidae. Entre el 2006 y 2009 se muestrearon 183 sitios entre 42°50' y 54°43' S, focalizándose en las principales cuencas. Los muéstreos se realizaron con una red "kicknet", cubriendo una superficie de fondo de 8 m². En toda el área se registraron 30 especies de Plecoptera y dos de Aeglidae. Se identificó una zona de endemismo en la cuenca del río Aysén, sustentada por el plecóptero Ceratoperla fazi y el cangrejo Aegla neuquensis. Esta última especie correspondería a una población relictual procedente de los ríos de la estepa Argentina, que habría quedado atrapada en la Patagonia chilena, luego que se invirtiera el flujo del cauce del río que originalmente fluía hacia el Atlántico. Un marcado cambio latitudinal en la diversidad de especies fue evidente a lo largo del área de estudio (R² = 0.72, P The Chilean Patagonia includes one of the most complex hydrological systems of South America and one of the least modified systems of the world. These systems were intensely modified by the glacial activity of the Quaternary. The objectives of this study were to determine whether or not in this area exists zones of endemic benthic fluvial macroinvertebrates, and to analyze the patterns of diversity of species composed by organisms of high (Plecoptera and low (Aeglidae vagility. A collection of 183 selected sites, located between the latitude 42° 50' and 54°43' S, were sampled during 2006 and 2009. The sampling was focused on the main river basins and a "kicknet" was used to cover a surface of 8 m² at

  11. Designing Organizations

    DEFF Research Database (Denmark)

    Book Description The design of organizations has been an ongoing concern of management theory and practice over the past several decades. Over this time, there has been little change in the fundamental theory, principles and concepts of Organization Design (OD). Recently organizational life has....... The individual chapters are organized into five sections: (1) Putting Contingency Theory in its Place, (2) Focus on Individuals who make up the Organization, (3) Innovation Processes and Organization Design, (4) Adaptation and Technology, and (5) Design for Performance. Each chapter examines aspects of the books...

  12. Connectedness Among Chilean Adolescents: Factor Analysis of the Hemingway Measure of Adolescent Connectedness La Conectividad Entre Adolescentes Chilenos: Un Análisis Factorial de la Hemingway Measure of Adolescent Connectedness

    Directory of Open Access Journals (Sweden)

    Benedict T McWhirter

    2011-05-01

    Full Text Available The construct of connectedness was investigated among 390 Chilean adolescents using the Hemingway Measure of Adolescent Connectedness (Hemingway; Karcher, 2003. Participants were 7th-12th graders at an urban Santiago Catholic school. Results of a principal-axis exploratory factor analysis revealed an 11 factor structure that accounts for 61.92% of total explained variance of adolescent connectedness measured by the Hemingway, similar to results found in the adolescent samples in the United States. Two additional Hemingway subscales (connectedness to siblings and to boyfriend/girlfriend are also described. Correlations between domains of connectedness and additional data obtained from these adolescents, their parents, and their teachers support the construct validity of the measure in this Chilean sample. Connectedness is an important protective factor among adolescents across many national contexts and the Hemingway is a promising measure for use with Chilean adolescents.Se examinó el constructo conectividad en 390 adolescentes chilenos en un colegio urbano y católico de Santiago. Mediante un análisis factorial exploratorio de la escala Hemingway Measure of Adolescent Connectedness (Hemingway, Karcher, 2003 se observó una estructura de 11 factores que da cuenta de un 61,92% de la varianza explicada de la conectividad de los adolescentes medida por la escala Hemingway, lo cual es muy similar a los resultados obtenidos en muestras de adolescentes estadounidenses. También se describen dos subescalas adicionales (la conectividad con los/las hermanos/as y con los/las pololos/as. Las relaciones entre los factores de conectividad y los datos reportados por los adolescentes, sus padres y profesores contribuyen también a la validez de constructo de la escala en esta muestra chilena. Para los adolescentes de distintos contextos culturales la conectividad es un factor importante de protección y la escala Hemingway es un instrumento de uso prometedor

  13. Revisión sobre aspectos biológicos y de cultivo del lenguado chileno (Paralichthys adspersus Review of the biology and cultivation of Chilean flounder (Paralichthys adspersus

    Directory of Open Access Journals (Sweden)

    Alfonso Silva

    2010-01-01

    Full Text Available El lenguado chileno (Paralichthys adspersus es una especie endémica de la costa chilena, que ha sido objeto de diversos estudios tendientes a analizar las posibilidades que presenta para diversificar la acuicultura marina. El presente trabajo hace una revisión de los diversos resultados obtenidos en el estudio de su biología y técnicas de cultivo, observándose que existe el conocimiento zootécnico necesario para desarrollar su ciclo biológico completo en cautividad y producir individuos de tamaño comercial en condiciones de cultivo. Sin embargo, este conocimiento se encuentra disperso y aún muestra comparativamente con otras especies cultivables, una moderada replicabilidad de los resultados, lo que implica la necesidad de persistir en la optimización de algunos aspectos de su cultivo, para impulsar definitivamente su desarrollo.Chilean flounder (Paralichthys adspersus are endemic to the Chilean coast and have been the subject of several studies on the possible diversification of marine aquaculture. This paper reviews the diverse results obtained from studies of this species' biology and cultivation techniques. The biological and technical knowledge available is sufficient for developing the entire life cycle of this species, producing commercial-sized individuals, in captivity. However, this knowledge is disperse and the results, as compared with those for other harvested species, still show moderately reproducible results, implying the need to continue efforts to optimize some aspects of Chilean flounder cultivation, thereby promoting the species' development definitely.

  14. La aspiración y la pérdida de /s/ en el español de Chile como ejemplo de opacidad (Chilean /s/ aspiration and deletion as an example of phonological opacity

    Directory of Open Access Journals (Sweden)

    Karolina Bros

    2013-12-01

    Full Text Available En este artículo se estudia la llamada aspiración de /s/ implosiva y su pérdida en una variedad del español contemporáneo encontrada en Chile. El concepto de debilitamiento del fonema /s/ se presentará en términos generales, seguido por la presentación del problema dentro de los principales marcos teóricos desde los años 90 del siglo XX hasta hoy en día. El análisis demostrará que una combinación de conceptos propuestos por fonólogos léxicos y de la teoría de la marcación de rasgos fonológicos es el camino correcto hacia la resolución del problema de la opacidad de los procesos fonológicos experimentados en el español de Chile, la derivación siendo el término clave en el reanálisis del chileno dentro del marco de la Teoría Derivacional de la Optimidad. (This article examines the so-called s-aspiration as well as s-deletion in Chilean Spanish. It analyses these phonological processes as segment weakening in interaction with resyllabification across word boundaries, and then moves on to the presentation of Chilean opacity in various theoretical frameworks prevailing throughout the 1990s and the beginning of the 21st century. This article demonstrates that a combination of concepts introduced by lexical phonologists and markedness governing the optimality framework is the correct path to follow in the analysis of Chilean opacity effects, with derivation playing a crucial role in their reanalysis within the framework of Derivational Optimality Theory.

  15. El impacto social y cultural de la publicidad entre los jóvenes chilenos The Social and Cultural Impact of Advertising among Chilean Youths

    Directory of Open Access Journals (Sweden)

    Maite Rodríguez Salineros

    2010-10-01

    Full Text Available El presente trabajo analiza el impacto de la publicidad entre jóvenes chilenos de distintos estratos socioeconómicos, con el objetivo de identificar la relación que establecen con la publicidad y la particular incorporación que hacen de ésta en sus estrategias de socialización. Por lo tanto, no se pretende dar cuenta de lo que la publicidad hace con los jóvenes, sino de lo que los jóvenes hacen con la publicidad a través de sus prácticas de recepción y apropiación. Para esto, se realizó un estudio sobre la base de grupos de discusión a jóvenes de ambos sexos, de edades entre 15 y 24 años provenientes de los niveles socioeconómicos altos y bajos residentes en Santiago de Chile. Los resultados que arrojó el estudio dan cuenta de que la publicidad es asumida como parte constitutiva de la oferta medial, la que es utilizada como información comercial y referente cultural de nuevos valores estéticos. Junto con esto, la publicidad adquiere el carácter de agente de socialización, al incorporar los contenidos de los mensajes publicitarios en las conversaciones con sus pares. Finalmente, este trabajo concluye que la publicidad entre los jóvenes chilenos estudiados, se presenta como una realidad sociocultural de primer orden, en cuanto actor central de su vida cotidiana.This work analyzes the impact of advertising among Chilean youngsters of different socioeconomic background. We aim to identify the relationship that this group establishes with advertising and, in particular, the way they incorporate it in their socialization strategies. We do not address what advertising does to youngsters, but instead what youngsters do with advertising in their practices of appropriation and reception of it. The research design included focus groups of male and female youngsters living in Santiago de Chile between 15 and 24 years of age coming from both high and low-income background. The conclusion of our research is that advertising is assumed

  16. Export Behaviour in the Chilean Agribusiness and Food Processing Industry Comportamiento Exportador de las Empresas Chilenas, Agrocomerciales y Procesadoras de Alimentos

    Directory of Open Access Journals (Sweden)

    Rodrigo Echeverría

    2008-12-01

    Full Text Available This paper analyzes the export-behavior of Chilean agribusiness and food processing firms and the relative importance of firm-specific and geographic characteristics in this behavior. Using firm level data and regional geographic indicators, a dynamic model was used to study the export decisions and the export intensity of three industries: processing fish, processing fruits and vegetables, and wine production. Results showed that determinants of exporting behavior vary among the three industries, except the effect of sunk costs, which strongly impacts the export decisions of all analyzed industries. This implies that firms with prior export experience will have higher probability of exporting in the future. Foreign ownership positively impacts the export decision of the two processing industries. Thus, firms belonging to these industries that wish to increase the probability of being an exporter should be encouraged to have a partnership with a foreign company or investor. The export intensity is positively influenced by foreign ownership in the fruit and vegetables processing and wine industries. As in the case of the export decision of firms, foreign participation helps increase the scale of exports. In general, firm-specific characteristics significantly impact the export behavior in Chilean agribusiness and processed food industries, while the contribution of geography attributes appears mixed.Este artículo analiza el comportamiento exportador de las empresas chilenas agroindustriales y procesadoras de alimentos y la importancia relativa que las características geográficas y específicas de las empresas tienen en este comportamiento exportador. Con datos a nivel de empresas e indicadores geográficos regionales, se utilizó un modelo dinámico para estudiar la decisión y la intensidad exportadora de tres industrias: industria procesadora de pescados, industria procesadora de frutas y hortalizas, e industria productora de vinos. Los

  17. Prevalence of the angiotensin I converting enzyme insertion/deletion polymorphism, plasma angiotensin converting enzyme activity, and left ventricular mass in a normotensive Chilean population.

    Science.gov (United States)

    Jalil, J E; Piddo, A M; Cordova, S; Chamorro, G; Braun, S; Jalil, R; Vega, J; Jadue'P, L; Lavandero, S; Lastra, P

    1999-07-01

    The aim of this study was to estimate the prevalence of the different alleles of the angiotensin converting enzyme (ACE) gene insertion/deletion (I/D) polymorphism and associated plasma ACE activity, as well as cardiac echocardiographic structure, in a healthy Chilean population. We selected 117 healthy normotensive subjects (aged 45 to 60 years, middle socioeconomic status, nonobese, and nondiabetic) from a population-based study concerning the prevalence of risk factors for chronic diseases (Conjunto de Acciones Para la Reducción Multifactorial de las Enfermedades no Transmisibles [CARMEN]). The frequencies of the I and D alleles were 0.57 and 0.43, respectively. Mean plasma ACE activity was 15.3 +/- 3.9 U/mL. Compared with subjects with the II genotype, plasma ACE activity was significantly higher in subjects with the ID and DD genotypes with no difference between them. No correlation was observed between blood pressure and plasma ACE activity. Among the three different genotypes there was no difference in left ventricular (LV) dimensions or in LV mass. No correlation between plasma ACE activity and LV mass was observed for either gender or different genotypes. Multivariate linear regression analysis using LV mass and LV mass index as dependent variables showed independent effects (P < .05) for gender (higher LV mass in men) and diastolic blood pressure, but not for the DD genotype. In conclusion, in this population, the presence of the D allele on the ACE gene determined higher circulating ACE activity. However, in this normotensive healthy population, male gender and diastolic blood pressure, but not the presence of the D allele, were associated with increased LV mass.

  18. [Development of a cookie formulation for celiac people using defatted Chilean hazel nut (Gevuina avellana. Mol) flour and quinoa (Chenopodium quinoa Willd) flour].

    Science.gov (United States)

    Villarroel, Mario; Huiriqueo, Carolina; Hazbun, Julia; Carrillo, Diego

    2009-06-01

    The present investigation deals with the optimization of a cookie formulation based on deffated chilean hazel nut flour (DCHF) and quinoa flour (QF) characterized for being gluten free resources, aimed to increment the nutritional options of the celiac population using Taguchi methodology. Four independent variables DCHF, QF, ammonium bicarbonated (AB) and baking time (BT) at three levels each one were considered in orden to evaluate their effects on the sensory quality (SQ) and signal to noise ratio (S/N) of the optimized product. To determine the optimun levels and relative magnitude of the effects of each parameter L9 3(4) orthogonal array with nine design points and two replications each totalizing eighteen experimental runs was used. Results were analyzed using differences between the average values of each factor according to the working level and also analysis of variance (ANOVA). The desired characteristics were the maxima SQ and S/R responses, so Taguchi "the larger the better" performance formula was used. Optimun conditions turn out to be DCHF 24.3%; QF 7.1%; AB 0.6%; BT 22 minutes. Among the chemical characteristics highlighted components such as protein (8.9%) and fiber (12.7%). Regarding the prolamine content of 1.5 ppm its result was under the limit considered for CODEX (20 ppm) classifying this product as gluten free. On the other hand, the shelf life study expressed as conjugated dienes (CD) was 3.6% after 45 days at 30 degrees C storage conditions proving this product is stable to rancidness. Hedonic test data shown 100% approval, splitted as follow 75% (like very much) and 25% (like). Finally 100% of celiac peoples inquired in this study were well disposed to buy this product.

  19. FACTORES DE ÉXITO EN PROVEEDORES DE BIENES MANUFACTURADOS DE LA SALMONICULTURA CHILENA SUCCESS FACTORS IN SUPPLIERS OF MANUFACTURES WITHIN THE CHILEAN SALMON INDUSTRY

    Directory of Open Access Journals (Sweden)

    Carlos Torres Fuchslocher

    2009-04-01

    Full Text Available Este artículo analiza, en base a un trabajo empírico, los principales factores a nivel de la empresa que han determinado el éxito de los proveedores locales de manufacturas, en términos de participación de mercado, en el cluster del salmón en Chile. La investigación envolvió un levantamiento de material empírico a través de 50 entrevistas, las cuales fueron evaluadas cualitativamente y por medio de un análisis econométrico de corte transversal, usando variables explicativas cualitativas. Los resultados destacan la especialización sectorial, la innovación en productos especializados para la industria y la cooperación horizontal, dentro de la estrategia de entrada; y la antigüedad de la empresa, la capacidad de innovación interna, la capacidad financiera (capacidad de otorgar crédito a clientes y bajo nivel de endeudamiento y la diversificación de la cartera productos, dentro de la competitividad previa, como determinantes del éxito de los proveedores.This article analyses the main factors at the firm-level which have determined the success, in terms of market share, of manufacture suppliers within the Chilean salmon industry. The analysis is based on data collected in an empirical research that included 50 interviews with suppliers. The data was evaluated through both a qualitative analysis and a cross section econometric analysis. The results show the importance of sectoral specialization, the innovation on specialized products for the aquaculture industry and horizontal cooperation within the entry strategy of firms, whereas the firm's age, the internal innovation capabilities, the own capital and the diversification of product portfolio were the main competitive factors before the entry.

  20. Conjugated linoleic acid content in milk of Chilean Black Friesian cows under pasture conditions and supplemented with canola seed (Brassica napus concentrate

    Directory of Open Access Journals (Sweden)

    J. P. Avilez Ruiz

    2012-12-01

    Full Text Available At present, there is limited and contradictory information about the effects of the use of canola (Brassica napus seed as supplement on the contents of conjugated linoleic acid (CLA in milk of grazing cows. The objective of this study was to evaluate the effect of a dietary supplement with canola seed on the production and composition of milk, and CLA concentration in Chilean Black Friesian cows under pasture conditions. Three experiments were done. Experiment 1: control group was fed 5 kg d-1 of commercial concentrate without canola (0-TC1 and treatment group that was fed 3.75 kg of commercial concentrate plus 1.16 kg of whole canola seed (1.16-TC1. Experiment 2: Control group was fed 8 kg d-1 commercial concentrate without canola (0-TC2 and treatment group that was fed 6.2 kg of commercial concentrate plus 1.2 kg of ground canola seed (1.2-TC2. Experiment 3: control group was fed 6 kg d-1 commercial concentrate without canola (0-TC3 and treatment group was fed 6 kg of commercial concentrate with 20% of whole canola seed (1.2 kg d-1, 1.2-TC3. The duration of each experiment was 60 days. No differences in milk production and quality were observed among the experimental groups in every assay. The CLA isomers trans-10, cis-12 and cis-10, cis-12 were higher than those normally found in the scientific literature. There was no effect of the inclusion of canola seed on total CLA content or the content of cis-9, trans-11, trans-10, cis-12 and cis-10, cis-12 isomers.

  1. Isolation and characterization of a novel Acidithiobacillus ferrivorans strain from the Chilean Altiplano: attachment and biofilm formation on pyrite at low temperature.

    Science.gov (United States)

    Barahona, Sergio; Dorador, Cristina; Zhang, Ruiyong; Aguilar, Pablo; Sand, Wolfgang; Vera, Mario; Remonsellez, Francisco

    2014-11-01

    Microorganisms are used to aid the extraction of valuable metals from low-grade sulfide ores in mines worldwide, but relatively little is known about this process in cold environments. This study comprises a preliminary analysis of the bacterial diversity of the polyextremophilic acid River Aroma located in the Chilean Altiplano, and revealed that Betaproteobacteria was the most dominant bacterial group (Gallionella-like and Thiobacillus-like). Taxa characteristic of leaching environments, such Acidithiobacillus and Leptospirillum, were detected at low abundances. Also, bacteria not associated with extremely acidic, metal-rich environments were found. After enrichment in iron- and sulfur-oxidizing media, we isolated and identified a novel psychrotolerant Acidithiobacillus ferrivorans strain ACH. This strain can grow using ferrous iron, sulfur, thiosulfate, tetrathionate and pyrite, as energy sources. Optimal growth was observed in the presence of pyrite, where cultures reached a cell number of 6.5 · 10(7) cells mL(-1). Planktonic cells grown with pyrite showed the presence of extracellular polymeric substances (10 °C and 28 °C), and a high density of cells attached to pyrite grains were observed at 10 °C by electron microscopy. The attachment of cells to pyrite coupons and the presence of capsular polysaccharides were visualized by using epifluorescence microscopy, through nucleic acid and lectin staining with Syto(®)9 and TRITC-Con A, respectively. Interestingly, we observed high cell adhesion including the formation of microcolonies within 21 days of incubation at 4 °C, which was correlated with a clear induction of capsular polysaccharides production. Our data suggests that attachment to pyrite is not temperature-dependent in At. ferrivorans ACH. The results of this study highlight the potential of this novel psychrotolerant strain in oxidation and attachment to minerals under low-temperature conditions.

  2. Reconstruction of a glacial lake outburst flood (GLOF) in the Engaño Valley, Chilean Patagonia: Lessons for GLOF risk management.

    Science.gov (United States)

    Anacona, Pablo Iribarren; Mackintosh, Andrew; Norton, Kevin

    2015-09-15

    Floods from moraine-dammed lake failures can have long standing effects not only on riverine landscapes but also on mountain communities due to the high intensity (i.e. great depth and high velocities) and damaging capacity of glacial lake outburst floods (GLOFs). GLOFs may increase in frequency as glaciers retreat and new lakes develop and there is an urgent need to better understand GLOF dynamics and the measures required to reduce their negative outcomes. In Patagonia at least 16 moraine-dammed lakes have failed in historic time, however, data about GLOF dynamics and impacts in this region are limited. We reconstruct a GLOF that affected a small village in Chilean Patagonia in March 1977, by semi structured interviews, interpretation of satellite images and 2D hydraulic modelling. This provides insight into the GLOF dynamics and the planning issues that led to socioeconomic consequences, which included village relocation. Modelling shows that the water released by the GLOF was in the order of 12-13 × 10(6)m(3) and the flood lasted for about 10h, reaching a maximum depth of ~1.5m in Bahía Murta Viejo, ~ 26 km from the failed lake. The lake had characteristics in common with failed lakes worldwide (e.g. the lake was in contact with a retreating glacier and was dammed by a narrow-steep moraine). The absence of land-use planning and the unawareness of the GLOF hazard contributed to the village flooding. The Río Engaño GLOF illustrates how small-scale and short-distance migration is a reasonable coping strategy in response to a natural hazard that may increase in frequency as atmospheric temperature rises and glaciers retreat.

  3. Nuevas Tendencias del Cine Chileno tras la llegada del Cine Digital New Tendencies in Chilean Contemporary Cinema After the Implosion Of Digital Video

    Directory of Open Access Journals (Sweden)

    Carolina Larraín Pulido

    2010-07-01

    Full Text Available La llegada de tecnologías digitales al país en pocos años transforma la escena de producción cinematográfica, no sólo modificando los costos y procesos implicados en la cadena de producción y exhibición cinematográfica, sino también posibilitando la gestación de una escena de producción de largometrajes digitales de bajo costo, que permite el surgimiento de una serie de nuevos realizadores, temáticas, estilos, formas de producción y circuitos de exhibición. El artículo Nuevas Tendencias del cine chileno tras la llegada del cine digital explora e intenta dar cuenta de este fenómeno reciente en el medio chileno, dando cuenta de cómo la inserción de la tecnología digital ha impactado sobre estas nuevas cinematografías, revisando nuevos usos, prácticas, representaciones y tendencias presentes en estas realizaciones.Abstract During the past years, the insertion of digital technologies in Chile has greatly affected the nation's film scenario, not only modifying the chain of film production and exhibition, but also generating a production scene of low-budget digital feature film that has allowed the development of new directors, themes, styles and modes of production and exhibition. The present article analyzes this recent phenomenon in Chilean film industry, revising how the insertion of digital technologies has affected these new forms of cinema in terms of style, production practices, exhibition, purposes and main tendencies.

  4. The visual system of a palaeognathous bird: visual field, retinal topography and retino-central connections in the Chilean tinamou (Nothoprocta perdicaria).

    Science.gov (United States)

    Krabichler, Quirin; Vega-Zuniga, Tomas; Morales, Cristian; Luksch, Harald; Marín, Gonzalo J

    2015-02-01

    Most systematic studies of the avian visual system have focused on Neognathous species, leaving virtually unexplored the Palaeognathae, comprised of the flightless ratites and the South American tinamous. We investigated the visual field, the retinal topography, and the pattern of retinal and centrifugal projections in the Chilean tinamou, a small Palaeognath of the family Tinamidae. The tinamou has a panoramic visual field with a small frontal binocular overlap of 20°. The retina possesses three distinct topographic specializations: a horizontal visual streak, a dorsotemporal area, and an area centralis with a shallow fovea. The maximum ganglion cell density is 61,900/ mm(2) , comparable to Falconiformes. This would provide a maximal visual acuity of 14.0 cycles/degree, in spite of relatively small eyes. The central retinal projections generally conform to the characteristic arrangement observed in Neognathae, with well-differentiated contralateral targets and very few ipsilateral fibers. The centrifugal visual system is composed of a considerable number of multipolar centrifugal neurons, resembling the "ectopic" neurons described in Neognathae. They form a diffuse nuclear structure, which may correspond to the ancestral condition shared with other sauropsids. A notable feature is the presence of terminals in deep tectal layers 11-13. These fibers may represent either a novel retinotectal pathway or collateral branches from centrifugal neurons projecting to the retina. Both types of connections have been described in chicken embryos. Our results widen the basis for comparative studies of the vertebrate visual system, stressing the conserved character of the visual projections' pattern within the avian clade.

  5. Co-detección de Patógenos Periodontales en Pacientes Chilenos con Periodontitis Crónica Co-detection of Periodontal Pathogens in Chilean Patients with Chronic Periodontitis

    Directory of Open Access Journals (Sweden)

    C Mujica Troncoso

    2010-12-01

    bacteria associated with chronic periodontitis are Porphyromonas gingivalis, Treponema denticola and Tannerella forsythia, while Aggregatibacter actinomycetemcomitans is mainly associated with aggressive periodontitis. Another key organism in the development of the disease is Fusobacterium nucleatum, which has the ability to co-aggregate with other periodontal pathogen. To demonstrate the prevalence of these bacteria and the association between Chilean smokers and nonsmokers patients, 67 samples were analyzed by conventional PCR. The results showed that 90% of the samples were positive for F nucleatum being the most commonly detected bacteria. By analyzing the co-detection between different bacteria shows that F nucleatum is present in more than 80% of cases when it detects any of the four remaining bacteria, which lie A. actinomycetemcomitans was detected in no more than 20% by amplifying any remaining bacteria. Moreover the results by gender indicate that significant differences exist in the detection of T forsythia, F. nucleatum and A. actinomycetemcomitans. In considering the factor of smoking was observed that none of the samples from smokers was found to be positive for A. actinomycetemcomitans.

  6. Feeding and nutritional ecology of the edible sea urchin Loxechinus albus in the northern Chilean coast Ecología nutricional y alimenticia del erizo comestible Loxechinus albus en el norte de Chile

    Directory of Open Access Journals (Sweden)

    SOLANGE J GONZÁLEZ

    2008-12-01

    Full Text Available The red sea urchin Loxechinus albus, an economically important species oceurring along the Chilean littoral benthic systems, has been heavily exploited by artisanal fisheries in recent decades. However, basic knowledge of its trophic biology is still scarce. Studies of this kind are critical to the successful development of farming techniques as an alternative to the harvest of natural populations. The aims of this study were to quantify the composition of L. albus' natural diet, to determine the assimilation efficieney of the most important dietary components, and to experimentally examine the species' trophic selectivity. Adult and juvenile specimens were sampled in spring 1993 and summer, fall and winter 1994 from the shallow subtidal zone of Iquique, northern Chile. Neither juveniles ñor adults showed significant seasonal differences in dietary composition. The main Ítems in the diet were the green alga Ulva sp. for juveniles and the kelp Lessonia sp. for adults. In adults, assimilation efficieney (as percentage of the total organic matter ingested was not significantly different among individuals that consumed Lessonia sp. (48.7 %, Ulva sp. (44.6 % and Macrocystis (38.1 %, whereas in juveniles assimilation efficieney was significantly higher for individuals fed on the chlorophyte Ulva sp. (55.4 %, followed by Lessonia sp. (35.0 % and Macrocystis (25.5 %. These results suggest that L. albus undergoes an ontogenetic shift in the diet, consisting of a differential foraging strategy between juveniles and adults.El erizo Loxechinus albus (Molina, 1782 es un recurso de gran importancia económica en los sistemas bentónicos costeros, y que se encuentra bajo una fuerte presión de explotación. Sin embargo, los antecedentes sobre diversos aspectos básicos de su biología trófica son aún escasos. Estudios de esta naturaleza son importantes en razón a que constituyen la base para el desarrollo de técnicas de cultivo exitosas, alternativa a la

  7. Organic electroluminescence

    CERN Document Server

    Kafafi, Zakya H

    2005-01-01

    Organic light-emitting diode(OLED) technology has achieved significant penetration in the commercial market for small, low-voltage and inexpensive displays. Present and future novel technologies based on OLEDs involve rigid and flexible flat panel displays, solid-state lighting, and lasers. Display applications may range from hand-held devices to large flat panel screens that can be rolled up or hung flat on a wall or a ceiling. Organic Electroluminescence gives an overview of the on-going research in the field of organic light-emitting materials and devices, covering the principles of electroluminescence in organic thin films, as well as recent trends, current applications, and future potential uses. The book begins by giving a background of organic electroluminescence in terms of history and basic principles. It offers details on the mechanism(s) of electroluminescence in thin organic films. It presentsin-depth discussions of the parameters that control the external electroluminescence quantum efficien...

  8. Organic optoelectronics

    CERN Document Server

    Hu, Wenping; Gong, Xiong; Zhan, Xiaowei; Fu, Hongbing; Bjornholm, Thomas

    2012-01-01

    Written by internationally recognized experts in the field with academic as well as industrial experience, this book concisely yet systematically covers all aspects of the topic.The monograph focuses on the optoelectronic behavior of organic solids and their application in new optoelectronic devices. It covers organic electroluminescent materials and devices, organic photonics, materials and devices, as well as organic solids in photo absorption and energy conversion. Much emphasis is laid on the preparation of functional materials and the fabrication of devices, from materials synthesis a

  9. El lucro en la educación chilena: debate conceptual acerca del sentido de la educación pública y de la privada Profits in Chilean education: conceptual debate about the meaning of public and private education

    Directory of Open Access Journals (Sweden)

    Sebastián Donoso-Díaz

    2012-08-01

    Full Text Available El texto introduce en un tema capitular en el Chile de hoy, un tópico que ordena las vinculaciones entre lo público y lo privado en educación y que ha sido escasamente analizado en los últimos treinta años; a nuestro entender, producto del éxito del neoliberalismo en la legitimación del orden privado y de sus principios sobre lo público. Este fenómeno ha sido nuevamente puesto en tela de juicio en la sociedad chilena, a causa del descontento social con un sistema de mercado que se ha mostrado implacable. El lucro ha quedado al descubierto como principio y fin de los objetivos de las políticas neoliberales, y con ello se desnuda su débil propuesta de desarrollo social y de operación del Estado, tarea a la que la educación, desde el neoliberalismo, tiene muy poco que aportar.The text introduces a central issue discussed in today’s Chile, a topic that organizes the bounds between public and private sectors in education and which has been rarely discussed in the last thirty years; due in our opinion to the success of neoliberal policy in legitimating private order and its principles over the public ones. This phenomenon has again been put into discussion in the Chilean society as a result of a social discontent towards a market system that has been relentless. The beginning and ending of the objectives of neoliberal policies has been profit and together with it, bares its weak proposal of society development and the operation of the State, a task that education has very little to contribute since neoliberal policy.

  10. Organic salmon

    DEFF Research Database (Denmark)

    Ankamah Yeboah, Isaac; Nielsen, Max; Nielsen, Rasmus

    The year 2016 is groundbreaking for organic aquaculture producers in EU, as it represents the deadline for implementing a full organic life cycle in the aquaculture production. Such a shift induces production costs for farmers and if it should be profitable, they must receive higher prices. This ...... is closer to organic labeled agriculture products than to ecolabelled capture fisheries products, it indicates that consumers value organic salmon as an agriculture product more than fisheries product.......The year 2016 is groundbreaking for organic aquaculture producers in EU, as it represents the deadline for implementing a full organic life cycle in the aquaculture production. Such a shift induces production costs for farmers and if it should be profitable, they must receive higher prices....... This study identifies the price premium on organic salmon in the Danish retail sale sector using consumer panel scanner data for households by applying the hedonic price model while permitting unobserved heterogeneity between households. A premium of 20% for organic salmon is found. Since this premium...

  11. Organic Synthesis

    OpenAIRE

    Romea, Pedro

    2014-01-01

    Organic Synthesis is a one-semester course of the fourth year of the Chemistry Degree at the Universitat de Barcelona. This course covers the most important transformations in Organic Chemistry, including a short introduction to the Retrosynthetic Analysis. The aim is to provide a solid knowledge of the main reactions and their mechanism, which could later be improved during Master studies.

  12. The representation of repression, suffering and pain of the Chilean people. Film, exile and politics: the case of the film "Il pleut sur Santiago", by Helvio Soto Soto (1975

    Directory of Open Access Journals (Sweden)

    Marcelo Bonnassiolle

    2014-07-01

    Full Text Available This article examines the relationship between film and history and the representation of history in films, using for the study the film production of Chileans in exile through an analysis of the particular case of the film Raining on Santiago, filmed in France and Bulgaria and directed by filmmaker Helvio Soto in 1975. The article reports on the double functionality of this film: it represents a historical event and becomes the expression of identity in exile. This film has a political function since it is at the service of a political cause. In addition, the film tried to become a method of documentation, education, information and denouncing of what was happening in Chile. Hence, this production responded to the imagery of the filmmakers and became a historical record and a valuable documentary source that allows us to enter the ideological aspects of the exiled filmmakers and their intention to appeal to rebuild ties between the social and the political ¿crushed by the dictatorship¿ in order to help the reconfiguration of the collective memory of the Chilean left.

  13. Viviendo en el mundo material: Fotografías de indígenas del Desierto de Chile Living in a Material World: Pictures of Natives from the Chilean Desert

    Directory of Open Access Journals (Sweden)

    Pedro Mege

    2009-12-01

    Full Text Available Para los constructores chilenos -cronistas, exploradores y etnólogos- de la visualidad fotográfica del desierto y el altiplano del Norte de Chile, ésta se expresa, en sus publicaciones, como una materialidad deshumanizada, conformada por una visualidad de lo desértico que expulsa a la humanidad, donde la materialidad se hace dueña de las imágenes, escamoteándola, sustrayendo muy especialmente al indígena. Este trabajo explorará los procesos y mecanismos simbólicos que permitieron tal expulsión y exclusión, en la imagen visual del indígena del Norte de Chile en una serie de publicaciones de especialistas y literatos que tratan sobre el desierto y sus habitantes ancestrales y presentes.For Chilean constructers -chroniclers, explorers and ethnology researchers- of photographic visuality of the Chilean desert and altiplano, images presents itself, in publications, as a dehumanized materiality made by an imagery of the desert that expulses humanity, where materiality gets hold of the images, keeping it a secret so as to subtract, specially, the natives. The following paper will explore the process and symbolic mechanisms that allowed the expulsion and exclusion, in the images, of the natives from the North of Chile in a series of publications and people of letters who deal with subjects such as the deserts and its ancestral and living habitants.

  14. Statistical eruption forecast for the Chilean Southern Volcanic Zone: typical probabilities of volcanic eruptions as baseline for possibly enhanced activity following the large 2010 Concepción earthquake

    Directory of Open Access Journals (Sweden)

    Y. Dzierma

    2010-10-01

    Full Text Available A probabilistic eruption forecast is provided for ten volcanoes of the Chilean Southern Volcanic Zone (SVZ. Since 70% of the Chilean population lives in this area, the estimation of future eruption likelihood is an important part of hazard assessment. After investigating the completeness and stationarity of the historical eruption time series, the exponential, Weibull, and log-logistic distribution functions are fit to the repose time distributions for the individual volcanoes and the models are evaluated. This procedure has been implemented in two different ways to methodologically compare details in the fitting process. With regard to the probability of at least one VEI ≥ 2 eruption in the next decade, Llaima, Villarrica and Nevados de Chillán are most likely to erupt, while Osorno shows the lowest eruption probability among the volcanoes analysed. In addition to giving a compilation of the statistical eruption forecasts along the historically most active volcanoes of the SVZ, this paper aims to give "typical" eruption probabilities, which may in the future permit to distinguish possibly enhanced activity in the aftermath of the large 2010 Concepción earthquake.

  15. Capital Controls, Exchange Rate Management, and Monetary Policy in a Small Open Economy: A Stylized Model of the Chilean Case, 1978-1980 Capital Controls, Exchange Rate Management, and Monetary Policy in a Small Open Economy: A Stylized Model of the Chilean Case, 1978-1980

    Directory of Open Access Journals (Sweden)

    Patricio Arrau

    1990-03-01

    Full Text Available The paper addresses in an intertemporal optimizing framework the high real interest rate and the current account deficit observed in Chile when the economy was disinflated by means of the nominal exchange rate. The particular manner the capital account was controlled (a temporary flow constraint to capital inflows along with a passive monetary (the Monetary Approach to the Balance of Payments resulted in a tight monetary policy as the balance of payments could not provide the desired monev balances fast enough. When the capital account was liberalized, the observed plunge in the (medium-run real interest rate and the sharp increase in capital inflows are consistent with the tight money hypothesis. Unlike previous literature, the high real interest rate is theoretically consistent with a current account deficit during the transition when the flow constraint to capital inflows is loose enough and the utility function satisfies some conditions. All real effects, nevertheless, can be avoided if the monetary authority provides the desired money balances through expansionary open-market operations. Capital Controls, Exchange Rate Management, and Monetary Policy in a Small Open Economy: A Stylized Model of the Chilean Case, 1978-1980

  16. Spongicoloides sp. aff. a Spongicoloides galapagensis (Decapoda: Stenopodidea: Spongicolidae: una nueva especie para la carcinofauna chilena y primer registro de un estenopodido en aguas del margen continental de Chile Spongicoloides sp. aff. to Spongicoloides galapagensis (Decapoda: Stenopodidea: Spongicolidae: a new species for Chilean carcinofauna and the first record of aStenopodid for the Chilean margin

    Directory of Open Access Journals (Sweden)

    Guillermo L Guzmán

    2011-11-01

    Full Text Available Se cita por primera vez para el margen continental de Chile una especie de camarón Stenopodidae, asociado a una esponja hexactinelida. Los especímenes fueron recolectados en dos sitios de Chile central (31°12'S, 71°52'W y 36°00'S, 73°38'W; 922 a 1000 m de profundidad. Las esponjas estaban adheridas al sustrato con probable origen en emanaciones de metano. Spongicoloides sp. aff. a S. gala-pagensis, es el primer registro de la familia en aguas del margen continental del Pacífico suroriental. Los ejemplares coinciden con los rangos de la variación morfológica de S. galapagensis, no obstante difieren en el número de branquias descrito.This is the first record of a species of Stenopodid shrimp along the Chilean margin, associated with a hexactinellid sponge. The specimens were collected at two sites in central Chile (31°12'S, 71°52'W and 36°00'S, 73°38'W; 922 to 1000 m depth. The sponges were attached to the substrate with probable origins in methane seepage. Spongicoloides sp. aff. to S. galapagensis constitutes the first record of the family for the eastern south Pacific continental margin. The specimens coincide with the ranges of morphological variation of S. galapagensis, although they differ in the number of brachia described.

  17. Organic spintronics.

    Science.gov (United States)

    Bergenti, I; Dediu, V; Prezioso, M; Riminucci, A

    2011-08-13

    Organic semiconductors are emerging materials in the field of spintronics. Successful achievements include their use as a tunnel barrier in magnetoresistive tunnelling devices and as a medium for spin-polarized current in transport devices. In this paper, we give an overview of the basic concepts of spin transport in organic semiconductors and present the results obtained in the field, highlighting the open questions that have to be addressed in order to improve devices performance and reproducibility. The most challenging perspectives will be discussed and a possible evolution of organic spin devices featuring multi-functional operation is presented.

  18. 5 December 2011 - Chilean President of the Comision Nacional de Investigacion Cientifica y Tecnologica J. M. Aguilera in the ATLAS visitor centre with Adviser J. Salicio Diez and ATLAS Collaboration G. Mikenberg; signing the guest book with Head of International Relations F. Pauss; visiting the LHC superconducting magnet test hall with Department Head F. Bordry.

    CERN Multimedia

    VMO Team

    2011-01-01

    5 December 2011 - Chilean President of the Comision Nacional de Investigacion Cientifica y Tecnologica J. M. Aguilera in the ATLAS visitor centre with Adviser J. Salicio Diez and ATLAS Collaboration G. Mikenberg; signing the guest book with Head of International Relations F. Pauss; visiting the LHC superconducting magnet test hall with Department Head F. Bordry.

  19. Metagenomic analysis exploring taxonomic and functional diversity of soil microbial communities in Chilean vineyards and surrounding native forests

    Science.gov (United States)

    2017-01-01

    Mediterranean biomes are biodiversity hotspots, and vineyards are important components of the Mediterranean landscape. Over the last few decades, the amount of land occupied by vineyards has augmented rapidly, thereby increasing threats to Mediterranean ecosystems. Land use change and agricultural management have important effects on soil biodiversity, because they change the physical and chemical properties of soil. These changes may also have consequences on wine production considering that soil is a key component of terroir. Here, we describe the taxonomic diversity and metabolic functions of bacterial and fungal communities present in forest and vineyard soils in Chile. To accomplish this goal, we collected soil samples from organic vineyards in central Chile and employed a shotgun metagenomic approach to sequence the microbial DNA. Additionally, we studied the surrounding native forest to obtain a baseline of the soil conditions in the area prior to the establishment of the vineyard. Our metagenomic analyses revealed that both habitats shared most of the soil microbial species. The most abundant genera in the two habitats were the bacteria Candidatus Solibacter and Bradyrhizobium and the fungus Gibberella. Our results suggest that the soil microbial communities are similar in these forests and vineyards. Therefore, we hypothesize that native forests surrounding the vineyards may be acting as a microbial reservoir buffering the effects of the land conversion. Regarding the metabolic diversity, we found that genes pertaining to the metabolism of amino acids, fatty acids, and nucleotides as well as genes involved in secondary metabolism were enriched in forest soils. On the other hand, genes related to miscellaneous functions were more abundant in vineyard soils. These results suggest that the metabolic function of microbes found in these habitats differs, though differences are not related to taxonomy. Finally, we propose that the implementation of

  20. Organ Transplantation

    Science.gov (United States)

    ... of neurological criteria—the absence of brain activity. Brain death typically occurs after cardiopulmonary death, the cessation of ... it is medically more complex than donation after brain death because of the risk of organs being harmed ...

  1. Matching Organs

    Science.gov (United States)

    ... transplanted immediately. Also, a laboratory test to measure compatibility between the donor and potential recipient may be necessary. If the organ is refused for any reason, the transplant hospital of the next patient on the list ...

  2. Colloidal organization

    CERN Document Server

    Okubo, Tsuneo

    2015-01-01

    Colloidal Organization presents a chemical and physical study on colloidal organization phenomena including equilibrium systems such as colloidal crystallization, drying patterns as an example of a dissipative system and similar sized aggregation. This book outlines the fundamental science behind colloid and surface chemistry and the findings from the author's own laboratory. The text goes on to discuss in-depth colloidal crystallization, gel crystallization, drying dissipative structures of solutions, suspensions and gels, and similar-sized aggregates from nanosized particles. Special emphas

  3. Organic Conductors

    DEFF Research Database (Denmark)

    Andersen, Jan Rud; Jacobsen, Claus S.; Rindorf, Grethe;

    1975-01-01

    2,3,6,7-Tetramethyl-1,4,5,8-tetraselenafulvalene reacts with 2,5-dimethyl-7,7′,8,8′-tetracyano-p-quinodi-methane to give a highly conducting organic solid.......2,3,6,7-Tetramethyl-1,4,5,8-tetraselenafulvalene reacts with 2,5-dimethyl-7,7′,8,8′-tetracyano-p-quinodi-methane to give a highly conducting organic solid....

  4. HACIA LA CONSTITUCIÓN DE UN CORPUS DIACRÓNICO DEL ESPAÑOL DE CHILE TOWARDS CHILEAN SPANISH LANGUAGE DIACHRONIC CORPUS

    Directory of Open Access Journals (Sweden)

    MANUEL CONTRERAS SEITZ

    2009-01-01

    Full Text Available Este artículo describe y analiza la constitución de corpus diacrónicos hispánicos (españoles e hispanoamericanos con el objeto de situar el marco de referencia del CorDECh (Corpus Diacrónico del Español de Chile. El trabajo presenta una intersección entre disciplinas tradicionales, como la filología y la paleografía, con especialidades lingüísticas que se han revitalizado en los últimos años, como es el caso de la lingüística del corpus, en virtud de la conformación de un corpus diacrónico del español de Chile. Además, en este texto se da cuenta de los criterios de constitución de este corpus (cronológico, de selección y transcripción documental, diatópico y de variedad de registros; asimismo, se discuten aspectos de la automatización del corpus y las implicancias y proyecciones para el análisis del mismo. Finalmente, se repasan los criterios de etiquetación del corpus, de acuerdo con los aspectos de la Text Encoding Initiative (TEI, adoptados por la RAE en el Prontuario de Marcación SGML, utilizado para el CORDE (Corpus Diacrónico del Español, junto con presentar algunos ejemplos de estos aspectos, para lo cual se utilizó el editor XML/ XSLT Cooktop 2.5.The conformation of Hispanic diachronic corpora (Spanish and Hispano-American in order to place the framework of the CorDECh (Corpus Diacrónico del Español de Chile is described and analyzed in this paper. The work shows an intersection between traditional disciplines, such as the philolology and the paleography, with linguistic disciplines that have been revitalized in the last years, such as corpus linguistics, in order to shape a Chilean Spanish diachronic corpus. In addition, the criteria of corpus formation is presented in this text (chronological, documentary selection and transcription, diatopics and register varieties; in the same way, some aspects of corpora automatization and the implications and projections for its analysis is discussed here. Finally

  5. Voces de origen lunfardo en el registro festivo del diario chileno La Cuarta (Words of Lunfardo origin in festive register in Chilean newspaper La Cuarta

    Directory of Open Access Journals (Sweden)

    Abelardo San Martín Núñez

    2011-06-01

    Full Text Available El propósito del presente trabajo es establecer, cuantitativa y cualitativamente, el carácter que asume la presencia de voces de origen lunfardo en el léxico empleado en el registro festivo del diario chileno La Cuarta. Para tal propósito nos hemos propuesto determinar la participación de los lunfardismos en los procesos de cambio semántico, formación léxica y fijación fraseológica, implicados en una muestra de quince ejemplares del mencionado periódico (aproximadamente 375 páginas aparecidos entre noviembre y diciembre de 1998 y entre mayo y junio de 2004. Las voces de origen lunfardo recopiladas se analizaron desde dos puntos de vista: 1 vitalidad relativa (medida respecto de su frecuencia de empleo, su capacidad para originar familias léxicas y su predisposición a establecer relaciones de sinonimia al interior del corpus y 2 creación léxica (atendiendo a los recursos lexicogenésicos implicados en cada caso: cambio semántico, formación léxica y fijación fraseológica, principalmente. Asimismo, se confeccionó un inventario lexicográfico de los lunfardismos relevados en el cual se señalan la caracterización gramatical, la definición de acepciones y los ejemplos de uso de cada voz o locución relevada en el corpus. (The aim of this study is to determine, qualitatively and quantitatively, the nature that the presence of Lunfardo borrowings assume in the lexicon used in the festive register of the Chilean newspaper La Cuarta. For this purpose, the participation of these lexical items in the processes of semantic change, lexical formation and phraseological fixation has been decided to be established. To do so, a corpus of 375 was gathered, which consists of 15 numbers published between November and December 1998 and May and June 2004. The borrowings found were analyzed from two perspectives: 1 relative vitality (according to frequency of use, capacity to originate lexical families and their predisposition to establish

  6. Espirometría: Manual de procedimientos. Sociedad Chilena de Enfermedades Respiratorias, 2006 Manual of Procedures on Spirometry: Chilean Society of Respiratory Diseases, 2006

    Directory of Open Access Journals (Sweden)

    Mónica Gutiérrez C

    2007-03-01

    Full Text Available La espirometría es una prueba fundamental en la evaluación funcional respiratoria. Este test es utilizado frecuentemente en la práctica clínica y en estudios de poblaciones. Entre los diversos índices derivados de una espiración forzada, el VEF1 y la CVF son los más usados debido a su buena reproducibilidad, facilidad de su medición, y su grado de correlación con la etapa de la enfermedad, condición funcional, morbilidad y mortalidad. Considerando la importancia de aplicar procedimientos estandarizados para realizar espirometrías, un comité de especialistas en función pulmonar de la Sociedad Chilena de Enfermedades Respiratorias, elaboró este manual de procedimientos para realizar espirometrías. El objetivo de este manual es comunicar las normas internacionales para realizar espirometrías, a fin de promover su aplicación en la práctica clínica y de laboratorio. Además se propone una manera consensuada para informar e interpretar los valores espirométricos tanto en la práctica clínica como en el trabajo de laboratorioSpirometry is a essential test for assessing pulmonary function. This test is frequently used in clinical practice and population studies. Among the several indices derived from forced expiration, forced expiratory volume in the 1st second (FEV1 and forced vital capacity (FVC are the most commonly used because of good reproducibility, ease of measurement, and correlation with disease stage, functional condition, morbidity and mortality. Considering the importance to apply standardized techniques for measuring spirometric indices, a committee of specialists on pulmonary function from the Chilean Society of Respiratory Diseases, has elaborated this manual of procedures on spirometry. The aim of this manual is to report the international standards for carrying out spirometry, to promote their application in clinical and laboratory practice. Besides a general assent way for interpreting and reporting spirometric

  7. Sensitivity of Venturia inaequalis Chilean Isolates to Difenoconazole, Fenarimol, Mancozeb, and Pyrimethanil Sensibilidad de Aislados Chilenos de Venturia inaequalis a Difenoconazole, Fenarimol, Mancozeb y Pyrimethanil

    Directory of Open Access Journals (Sweden)

    Jose Luis Henríquez S

    2011-03-01

    Full Text Available Apple scab (Venturia inaequalis is the most important disease in Chilean apple (Malus domestica Borkh. orchards where fungicide management is the main tool to control disease. Sensitivity tests to difenoconazole, fenarimol, mancozeb, and pyrimethanil fungicides were conducted on V. inaequalis wild isolates to construct local baseline sensitivity distributions, and compare them with a collection of isolates from seven different commercial orchards with no evidence of practical resistance. In vitro assays were conducted and sensitivity was measured as inhibition of mycelial growth (difenoconazole, fenarimol, pyrimethanil or conidial germination (mancozeb. Departure from the baseline distribution to less sensitivity was found for difenoconazole, fenarimol, and mancozeb with resistance factors of 4.7, 5.8, and 2.1, respectively. The highest difference between baseline and orchard populations was observed for fenarimol which showed the highest shift to less sensitivity. Discriminatory doses of 0.04, 1.0, 0.6, and 0.2 µg mL-1 are proposed for in vitro monitoring of sensitivity to difenoconazole, fenarimol, mancozeb, and pyrimethanil, respectively.La sarna del manzano (Venturia inaequalis es la principal enfermedad del cultivo en Chile y es controlada principalmente con el uso de fungicidas. Se realizaron pruebas de sensibilidad a los fungicidas difenoconazole, fenarimol, mancozeb y pyrimethanil en aislados monoconidiales de cepas silvestres de V. inaequalis con el fin de elaborar curvas basales de sensibilidad y compararlas con la sensibilidad de una colección de aislados monoconidiales provenientes de siete huertos comerciales sin evidencias de resistencia práctica. Se realizaron pruebas in vitro donde la sensibilidad se midió como la inhibición del crecimiento miceliar (difenoconazole, fenarimol y pyrimethanil o la inhibición de la germinación de conidias (mancozeb. La población de huertos comerciales estudiada presentó una menor

  8. Nueva especie de Planorbidae (Gastropoda: Basommatophora en la Patagonia chilena: Biomphalaria cristiani sp. nov. First record of Planorbidae (Mollusca: Basommatophora in Chilean Patagonia: Biomphalaria cristiani sp. nov.

    Directory of Open Access Journals (Sweden)

    Carmen Fuentealba

    2012-11-01

    Full Text Available En Chile la familia Planorbidae está representada por el género Biomphalaria Preston, 1910, compuesta por siete especies distribuidas desde Isluga hasta el río Puelo. De estas especies, solo B.peregrina, ampliamente distribuida en el neotrópico, y Biomphalaria aymara de Isluga, han sido reconocidas sobre la base de la morfología del sistema reproductor y la rádula, caracteres que fueron utilizados en el presente estudio para diferenciar a Biomphalaria cristiani como nueva especie del grupo y primer registro de la familia en la Patagonia chilena, ampliando su actual rango de distribución. Los caracteres que permiten la diagnosis de B. cristiani son el saco vaginal vestigial truncado, ausencia del desarrollo de los músculos suspensores del pene, vaina del pene corta en relación al prepucio, oviducto largo en relación al espermioducto y vaso deferente más delgado y largo que la vaina del pene, de tamano similar al prepucio. La localidad tipo de Biomphalaria cristiani sp. nov. es Laguna Cisnes (47°7'10.02"S, 72°27'40.65"W, región de Aysén.The family Planorbidae in Chile is represented by the genus Biomphalaria Preston, 1910, consisting of seven species distributed from Isluga to Puelo River. Of these species, only Biomphalaria peregrina widely distributed in the neotropical and Biomphalaria aymara from Isluga are recognized based on the morphology of the reproductive system and radula, characters that were used in the following study to differentiate Biomphalaria cristiani as a new species of this group and first record of the family in Chilean Patagonia, extending its current distribution range. The characters for the diagnosis of B. cristiani are: truncated vestigial vaginal pouch, lack of development of the penis retractor muscles, penis sheath shorter than the prepuce, oviduct longer than the spermiduct and vas deferens thinner and longer than the penis sheath, similar size to the prepuce. The type locality of B. cristiani nov. sp

  9. Sobre el español de Chile: del período colonial al independiente On the chilean spanish: from the colonial to the independent period

    Directory of Open Access Journals (Sweden)

    Juan Antonio Frago Gracia

    2010-01-01

    Full Text Available No pocos aspectos del español de América actual tienen difícil explicación sin su consideración histórica, de igual modo que la interpretación de la moderna sincronía ayuda a comprender sus precedentes diacrónicos, incluidos los rasgos grafémico-fonéticos de la lengua escrita. Es la cuestión que aborda la primera parte del artículo, con textos de Neruda, para a continuación establecer una comparación con el corpus de la chilena sor Úrsula Suárez, de la primera mitad del siglo XVIII. A partir de este corte sincrónico y con el apoyo de referencias documentales posteriores, se llega al análisis de un documento redactado en el mismo Chile durante los años de la Independencia. Y se concluye señalando continuidades y cambios, varios de carácter sociolingüístico y normativo, del español colonial a las puertas del período independiente, con pautas evolutivas en general válidas para todo el español americano.Many aspects of the varieties of Spanish from Latin America can be explained by considering their historic roots. In the same way, the interpretation of modern synchrony helps to understand its diachronic precedents, including the graphemic and phonetic features of the written language. The frst part of the present article explores this issue by focusing on texts by Neruda. Then it compares Neruda’s texts to the corpus of the Chilean Úrsula Suárez, which draws from the frst half of the 18th century. Starting from this synchronic snapshot and with the help of references from later documents, a text written in the same Chile during the years of the independence is analyzed. The analysis concludes by pointing out that there are both patterns that continue as well as those that change. Several of these patterns are sociolinguistic and normative in nature in the colonial Spanish on the brink of the independent period. These evolutionary patterns can be applicable, in general, to all the varieties of Spanish from Latin

  10. Memoria documental en textos chilenos del período colonial (siglos XVI y XVII (Documental memory in Chilean texts of the colonial period (sixteenth and seventeenth centuries

    Directory of Open Access Journals (Sweden)

    Manuel Contreras Seitz

    2013-06-01

    Full Text Available En este trabajo se da cuenta de las nociones básicas para la conformación de un corpus documental diacrónico que abarque el período colonial chileno, centrándose con particular énfasis en los siglos XVI y XVII. Se discute, además, los aspectos metodológicos para la edición crítica preliminar de dichos documentos, tanto en lo concerniente a la transcripción paleográfica de los mismos, la adecuación a normas filológicas específicas, así como el aparato crítico que es necesario implementar de acuerdo a los destinatarios, sin dejar de lado la rigurosidad histórica y documental. Especial mención se hará de los requisitos léxico-semánticos para la edición de estos documentos, el problema de las grafías y las abreviaturas, así como de los pasos previos que es necesario implementar para la creación de un programa de reconocimiento óptico de caracteres para textos manuscritos del período. (This article explains the basic notions for the conformation of a diachronic textual corpus that embraces the colonial Chilean period, focusing with particular emphasis on the XVI and XVII centuries. Some methodological aspects for the preliminary critical edition of these documents are also discussed, so much with what is concerned with aspects to the paleographical transcription of the same ones, the adaptation to philological specific norms, as well as the critical apparatus that is necessary to implement according to the addressees, without leaving aside the historical and documental rigor. Special mention will be made to the lexicon-semantic requirements for the edition of these documents, the problem of the graphs and the abbreviations, as well as of the previous steps that are necessary to implement for the creation of an optical character recognition program for handwritten texts of the period.

  11. Michelle Bachelet’s Government: The Paradoxes of a Chilean President El Gobierno de Michelle Bachelet: Las paradojas de la presidencia en Chile

    Directory of Open Access Journals (Sweden)

    Gregory Weeks

    2012-01-01

    Full Text Available The purpose of this article is to explain the contradictions in Michelle Bachelet’s presidency by focusing on the paradoxical nature of presidential power, the limits on the executive in the Chilean constitution, and how those limits affected President Bachelet’s government. At the outset of her presidency, she faced the problem of wanting to promote inclusive policies while simultaneously experiencing political pressure to maintain elite consensus. Due to institutional and political constraints, Bachelet’s rhetoric of inclusion could not be realized, and she eventually decided to opt for the more traditional elite consensus approach. In our view, the emphasis on achieving elite consensus produced contradictory results. It sustained Bachelet’s personal image as a national leader, but limited her ability to get effective legislation passed. Indeed, the Concertación itself was blamed for inaction rather than the president as an individual.El propósito de este artículo es analizar las contradicciones que se dieron durante la Presidencia de Michelle Bachelet. El artículo se enfoca en la naturaleza paradojal del poder presidencial, los límites que la constitución Chilena impone sobre el poder ejecutivo, y presenta un análisis de cómo esos límites afectaron al gobierno de la presidenta Bachelet. La Presidenta se vio, desde un principio, en la necesidad de escoger entre promover políticas de inclusión o mantener el consenso entre las elites. Dadas las limitaciones institucionales y políticas, la retórica de inclusión no se transformó en una realidad y ella escogió una política tradicional de consenso que favoreció a las elites. Desde nuestro punto de vista, el énfasis en lograr un consenso que favorecía a las elites produjo resultados contradictorios ya que, por un lado, sostuvo la imagen personal de Bachelet como líder nacional, pero, por el otro, limitó su capacidad para obtener la aprobación de legislación que

  12. Localised Effects of a Mega-Disturbance: Spatiotemporal Responses of Intertidal Sandy Shore Communities to the 2010 Chilean Earthquake.

    Science.gov (United States)

    Sepúlveda, Roger D; Valdivia, Nelson

    2016-01-01

    Determining the effects of unpredictable disturbances on dynamic ecological systems is challenged by the paucity of appropriate temporal and spatial coverage of data. On 27 February 2010, an 8.8 Mw mega-earthquake and tsunami struck central Chile and caused coastal land-level changes, massive damage to coastal infrastructure, and widespread mortality of coastal organisms. Wave-exposed sandy beaches showed significant changes of species abundances from before to after the earthquake, but the highly dynamic biotic and abiotic conditions of these habitats make difficult to draw clear-cut conclusions from these patterns. Here, we analysed a beyond-BACI (Before-After Control-Impact) sampling design to test whether the effects of the Maule earthquake on sandy-shore species diversity, abundance, and structure were heterogeneous along the shore. Invertebrate species abundances were quantified before (i.e. February 2010) and after (i.e. March 2010, September 2010, and March 2011) the earthquake at three sandy shores randomly located within the earthquake rupture area and three sites within a "control" area located >400 km southward from epicentre. Immediately after the earthquake took place, the three sites located in the rupture area showed anomalous beach-profile uplifts that did not comply with the erosion (i.e. "negative" uplifts) that regularly occurs during late summer in the region. Species richness, abundance, and community structure significantly varied from before to after the strike, but these patterns of change varied among sites within both areas. Only the site with the strongest and persistent beach-profile uplift within the rupture area showed significant concomitant changes in species richness and community structure; after 13 months, this community showed a similar multivariate structure to the before-disturbance state. This site, in particular, was located in the section of the rupture area that received most of the impact of the after-earthquake tsunami

  13. Emerging commons within artisanal fisheries. The Chilean territorial use rights in fisheries (TURFs within a broader coastal landscape

    Directory of Open Access Journals (Sweden)

    Gloria L. Gallardo Fernández

    2011-09-01

    Full Text Available Territorial User Rights in Fisheries (TURFs have spread in Chile, since the late 1990s, in the form of commons institutions. TURFs are presented by some scholars as a social-ecological success; by others as showing economic and compliance problems. Studies looking at the material conditions in which fishers produce and reproduce their livelihoods, and in which TURFs emerge, are scarcer. Ostrom’s theory on the commons claims that certain collective action conditions have to be met to become thriving commons institutions. Our hypothesis is that while institutions are moulded by local material conditions, such as geographical location and social embeddedness, these impose challenges and constraints upon fishers influencing TURFs’ long-term viability. How are collective action conditions influenced when the new TURFs commons do not emerge in tabula rasa contexts but in occupied spaces? Do material conditions influence TURFs’ sustainability? This paper set out to explore these conditions. Huentelauquén’s and Guayacán’s TURFs (central-northern Chile were chosen, as they represent two extremes (rural-urban; on private property-on State/municipal property; mainly diver – mainly fisher contexts in which TURFs have emerged. We mainly used Participatory Rural Approach (PRA tools triangulated with other qualitative methods. This study shows that both social embeddedness (private/State lands, and geographical location (rural/urban matter, resulting in different access to the coast for different TURFs, thus determining some important differences between our cases in at least three relevant areas: entrance, social relations between the fishers’ organization (entitled the TURFs and the landowner (private or municipal/State and the existence or absence of fishing and general infrastructure. Competition for space among key actors seems to affect the process of acquiring a TURF as well as the conditions conductive to collective action. TURFs

  14. Organic Computing

    CERN Document Server

    Würtz, Rolf P

    2008-01-01

    Organic Computing is a research field emerging around the conviction that problems of organization in complex systems in computer science, telecommunications, neurobiology, molecular biology, ethology, and possibly even sociology can be tackled scientifically in a unified way. From the computer science point of view, the apparent ease in which living systems solve computationally difficult problems makes it inevitable to adopt strategies observed in nature for creating information processing machinery. In this book, the major ideas behind Organic Computing are delineated, together with a sparse sample of computational projects undertaken in this new field. Biological metaphors include evolution, neural networks, gene-regulatory networks, networks of brain modules, hormone system, insect swarms, and ant colonies. Applications are as diverse as system design, optimization, artificial growth, task allocation, clustering, routing, face recognition, and sign language understanding.

  15. Organic Nanowires

    DEFF Research Database (Denmark)

    Balzer, Frank; Schiek, Manuela; Al-Shamery, Katharina;

    Single crystalline nanowires from fluorescing organic molecules like para-phenylenes or thiophenes are supposed to become key elements in future integrated optoelectronic devices [1]. For a sophisticated design of devices based on nanowires the basic principles of the nanowire formation have...

  16. Representaciones Sociales de los Chilenos Acerca del 11 de Septiembre de 1973 y su Relación con la Convivencia Cotidiana y con la Identidad Chilena Chileans Social Representations About September Eleventh 1973 and its Relationship With Daily Living Together and Chilean Identity

    Directory of Open Access Journals (Sweden)

    María Isabella Prado

    2004-11-01

    Full Text Available El 11 de septiembre de 1973 es una fecha de profunda significación en Chile. Su vigencia muestra que, al hablar de las representaciones sociales y los efectos actuales del 11, se está haciendo referencia a contenidos de un momento específico dentro de un proceso. Se abordó este trabajo desde la perspectiva teórica de las representaciones sociales, entendidas como una elaboración colectiva, intersubjetiva, posible a través de la comunicación y que se constituye en una manera de interpretar y aprehender la realidad cotidiana (Jodelet, 1984; Wagner & Elejabarrieta, 1994. Los elementos valorativos, afectivos, simbólicos y cognitivos con que se mira el 11, construyen realidades intersubjetivas que influyen en el modo de relacionarse de las personas, afectando la convivencia cotidiana e interviniendo en el modo de ser y de sentirse chileno.September eleventh of 1973 is a very important historical date in Chile. Its standing in social life shows that by talking about social representations and today effects of September eleventh, we are talking about a specific moment of a current process. The theory of social representations was chosen for this project, understanding those as a collective, intersubjective construction, made possible through communication and becoming a way of interpreting and understanding reality (Jodelet, 1984; Wagner & Elejabarrieta, 1994. The valorative, affective, symbolic and cognitive elements through which September eleventh is looked at, help building intersubjective realities that influence not only the way people relate to each other, affecting how they live together, but also influence the way of being and feeling Chilean.

  17. Claves para el reconocimiento taxonómico dentario en taxa del Superorden Squalomorphi de Chile (Chondrichthyes: Elasmobranchii Taxonomic dental keys for the Chilean taxa of the Superorder Squalomorphi (Chondricthyes: Elasmobranchii

    Directory of Open Access Journals (Sweden)

    Sylvia Sáez

    2010-01-01

    Full Text Available Se presenta una serie de claves para el reconocimiento dentario de diferentes taxa del Superorden Squalomorphi de Chile. Se seleccionaron características dentarias externas que permitan obtener una observación más expedita que conduzcan a un estudio más acabado, de la diagnosis de los diferentes taxa constituyentes de este grupo de peces, haciéndolas extensibles para estudios de piezas dentales fósiles.A series of taxonomic dental keys is presented for the Chilean taxa of the Superorder Squalomorphi. External dental characteristics were selected for easier observation, leading to more thorough studies. This allows diagnoses of the different taxa comprising this group of fishes and, moreover, can be extended to studies of fossil teeth.

  18. Lo fantástico como recurso a lo real: Lecturas de la literatura antropológica chilena The fantastic as a mean to the real: Chilean antropological literature readings

    Directory of Open Access Journals (Sweden)

    Miguel Alvarado Borgoño

    2012-01-01

    Full Text Available Este artículo vincula el concepto literario de fantasía con la metalengua de la Literatura antropológica chilena, planteando que lo fantástico constituye ante todo una estrategia metodológica, ya que en esta instancia es donde lo real puede ser concretamente expresado desde la concepción psicoanalítica de realidad como la conexión entre lo simbólico y lo imaginario.This article links the literary concept of fantasy with the meta-language of Chilean anthropological literature, arguing that the fantastic is primarily a methodological strategy, since it is here is where the real can be concretely expressed from the psychoanalytic conception of reality as the connection between the symbolic and the imaginary.

  19. LA EXTERNALIZACIÓN LABORAL Y LA CESIÓN ILEGAL DE TRABAJADORES EN EL SISTEMA JURÍDICO CHILENO Labor outsourcing and illegal cession of workers at the chilean law system

    Directory of Open Access Journals (Sweden)

    Irene Rojas Miño

    2010-01-01

    Full Text Available Este trabajo identifica a la cesión ilegal de trabajadores como manifestación ilícita de la externalización laboral. A la vez, analiza la configuración de la cesión ilegal de trabajadores en el ordenamiento jurídico chileno, sus concretos efectos jurídicos y, además, un particular problema que se ha planteado con la eficacia de la norma jurídica que establece este ilícito laboral.This work identifies the illegal cession of workers, as the illicit manifestation of the labor outsourcing. At the same time, it analyzes the illegal cession of workers configuration at the Chilean law system, its specifics legal effects and a particular problem derived of the efficiency of the law that establishes this labor illicit.

  20. Organic photovoltaics

    DEFF Research Database (Denmark)

    Demming, Anna; Krebs, Frederik C; Chen, Hongzheng

    2013-01-01

    spectrum as possible can be converted into an electrical current', explains Mukundan Thelakkat and colleagues in Germany, the US and UK. In this special issue they report on how charge carrier mobility and morphology of the active blend layer in thin film organic solar cells correlate with device...... parameters [2]. The work contributes to a better understanding of the solar-cell characteristics of polymer:fullerene blends, which form the material basis for some of the most successful solution processable organic photovoltaic devices at present. Andrey E Rudenko, Sangtaik Noh, and Barry C Thompson...... Z and Wang L 2013 Fine tuning of the PCDTBT-OR:PC71BM blend nanoscale phase separation via selective solvent annealing toward high-performance polymer photovoltaics Nanotechnology 24 484004 [6] Arar M et al 2013 Influence of morphology and polymer:nanoparticle ratio on device performance of hybrid...

  1. UNIPERSONALIDAD Y SOCIEDAD CON UN SOLO SOCIO; ALCANCES DE SU RECONOCIMIENTO EN LA ESTRUCTURA DOGMÁTICA DEL DERECHO CHILENO Unipersonality And Company With Only One Partner; Some Scope Of His Insertion In De Dogmatic Structure Of Chilean Law

    Directory of Open Access Journals (Sweden)

    Eduardo Jequier Lehuedé

    2011-01-01

    Full Text Available La presente investigación surge a partir del definitivo reconocimiento en Chile delfenómeno de la unipersonalidad y, recientemente, de la Sociedad por Acciones -SpA- con un solo socio en su vertiente originaria. Apunta en concreto a explorar el real impacto de la figura unipersonal en la estructura dogmática del derecho chileno y del derecho de sociedades en particular, construida a partir del concepto de sociedad contemplado en el artículo 2053 del Código Civil. Se analiza el origen de la unipersonalidad en el derecho comparado y sus concretas manifestaciones en el derecho chileno vigente, incluida la Empresa Individual de Responsabilidad Limitada -EIRL-, explicando en definitiva la incardinación y los efectos que genera la nueva figura de la sociedad de un solo socio en un sistema positivo inspirado, originariamente al menos, en la noción contractualista de la sociedad en general y en la concepción corporativa tradicional de la sociedad de capital en particular.The present investigation arises from the definitive recognition in Chile of the one man company phenomenon and, recently, of the Stock Company -SpA- with only one partner, in its original aspect. Its objective specifically points out to explore the real impact of this figure in the dogmatic structure of the Chilean law and specially of the company law, built from the concept of a company considered in the article 2053 of the Civil Code. What is being analyzed here is the one man company figure in compared law and its concrete declarations in the current Chilean law, including the Individual Limited Liability Corporation, explaining ultimately the incardination and the possible effects that can arise the one man company figure in a positive system, inspired originally at least, in the contractual sense of the company in general and the traditional corporative conception of the capital company particularly.

  2. The open scars of Latin America: The Bolivian Orocline as a basament-related hinge, and the influence of accreted terranes on the paleomagnetic rotational patterns of the Chilean forearc.

    Science.gov (United States)

    Peña Gomez, M. A.; Arriagada, C.; Gómez, I.; Roperch, P. J.

    2015-12-01

    We made a paleomagnetic study in two separate zones of the Chilean forearc, between 18-22ºS and between 28-32ºS, sampling igneous and sedimentary rocks with ages ranging from Triassic to Miocene. More than 500 samples showed a stable magnetization, with hematite and magnetite being the principal carriers of magnetism. The rotation pattern obtained, added to previously published paleomagnetic data, show a continuous database for the Chilean forearc, between 19 and 35ºS, allowing us to separate distinct patterns in 4 major rotational zones: (1) Between 18-19.5ºS there is a strong anticlockwise rotational pattern, in agreement with the data known in southern Peru. (2) Between 19.5-22.5ºS, there is little to no rotation, with the southern limit being related to a major structural feature: The Antofagasta-Calama Lineament. (3) Between 22.5-29ºS there is a strong clockwise rotation pattern of nearly 30º. (4) Between 29-32ºS there is again a little to non-rotational pattern, in the area of the Pampean flat-slab. Overlapping these zones and the recognized accreted terranes boundaries shows a clear spatial relation between these and the limits of the rotated zones. We propose that the limits of this rotational domains can be linked to basament hinge-like weakness zones that helped to create the margin curvatures observed today. Under this model, the bolivian orocline would be the result of the opening of a hinge, helped by other geodynamics features like sea mountains and ridges, at the limit between the old accreted paleozoic terranes of Antofalla and Arequipa.

  3. Periodismo intercultural: Representación peruana y boliviana en la prensa chilena Intercultural Journalism: Peruvian and Bolivian Representation in the Chilean Daily Press News

    Directory of Open Access Journals (Sweden)

    Ricardo Alberto Baessolo Stiven

    2010-10-01

    Full Text Available El presente trabajo estudia los mecanismos por los cuales la prensa masiva genera y representa discursos culturales provenientes de dos de los grupos más polémicos que en la actualidad conviven con lo chileno: peruanos y bolivianos. La representación que hacen los medios de comunicación sobre las culturas estudiadas incide fuertemente en los imaginarios que crean sus audiencias, lo que demanda una preocupación por proponer espacios de interacción intercultural tanto en los medios como en otras instituciones sociales, donde los estudios de la comunicación y el periodismo intercultural se cohesionen para ofrecer alternativas de encuentro y comunicación entre grupos culturalmente distintos. El objetivo central de esta investigación es comprender cómo, en los procesos de construcción social de la realidad a través de los medios de comunicación masivos, son representados los «discursos de la diferencia» peruano y boliviano en Chile. La metodología empleada para validar dicha propuesta es la del análisis crítico del discurso (ACD aplicado en las noticias de los diarios «La Cuarta» y «Las Últimas Noticias», pertenecientes a los grupos periodísticos con mayor tiraje en el país: consorcios «Copesa» y «El Mercurio». Los resultados de la investigación permiten concluir que estos medios de prensa representan realidades que tienden a marginar al «otro migrante», a través del reforzamiento de imaginarios de identidad construidos desde las relaciones fronterizas entre los tres estados-nacionales.This article examines the processes through which the massive press generates and represents the cultural discourses of two of the most polemic migrant groups coexisting nowadays in Chile: Peruvians and Bolivians. The representation that the communication media carries out regarding the studied cultures strongly influences the imaginaries of the Chilean audiences. That calls for special concern so as to propose the necessary spaces for

  4. Volatilidad de precios internacionales recibidos por los productores de kiwis y manzanas frescas chilenas Volatility of international prices received by chilean fresh kiwi and apple farmers

    Directory of Open Access Journals (Sweden)

    Germán Lobos Andrade

    2008-03-01

    Full Text Available El objetivo de este trabajo fue analizar el comportamiento de los precios medios FOB y el de los precios medios recibidos por los productores de kiwis y manzanas frescas chilenas, usando datos mensuales del periodo enero 1998 a diciembre 2005. Los valores fueron expresados en moneda de diciembre de 2005 usando como deflactor el WPI de EE.UU. Las series de precios medios recibidos por los productores se estimaron indirectamente restando a los precios medios FOB las comisiones y tarifas de exportación. Como medida de volatilidad se usó la desviación estándar de los retornos (variación de precios continuos de cada serie. Se utilizó el método del promedio geométrico móvil para estimar patrones de estacionalidad ajustada de los precios recibidos por los productores de kiwis y manzanas frescas chilenas. Se observó una mayor volatilidad de los retornos en kiwis (47,5% que en manzanas (17,3%. Los resultados mostraron: a una menor estacionalidad de precios para kiwis que manzanas; b una estabilidad de precios en marzo y desde julio a noviembre para kiwis, y desde febrero a junio y desde agosto a diciembre para manzanas; c un valor máximo en diciembre y más bajo en junio para kiwis, un valor máximo en julio y más bajo en enero para manzanas.The purpose of this study is to analyze the behavior of FOB average prices and the average prices received by fresh kiwi and apple producers, using monthly figures for the period spanning from January 1998 to December 2005. The values were expressed in December 2005 currency rates using the U.S.A. WPI (Wholesale Price Index as a deflator. The series of average prices received by the producers were estimated indirectly by subtracting the commissions and export tariffs from the FOB average prices. As a measure of volatility, the standard deviation of the continuous returns (prices variation of each series was used. The patterns of seasonally adjusted price fluctuations, received by Chilean fresh kiwi and

  5. Investigating the deformation of upper crustal faults at the N-Chilean convergent plate boundary at different scales using high-resolution topography datasets and creepmeter measurements

    Science.gov (United States)

    Ewiak, O.; Victor, P.; Ziegenhagen, T.; Oncken, O.

    2012-04-01

    The Chilean convergent plate boundary is one of the tectonically most active regions on earth and prone to large megathrust earthquakes as e. g. the 2010 Mw 8.8 Maule earthquake which ruptured a mature seismic gap in south-central Chile. In northern Chile historical data suggests the existence of a seismic gap between Arica and Mejillones Peninsula (MP), which has not ruptured since 1877. Further south, the 1995 Mw 8.0 Antofagasta earthquake ruptured the subduction interface between MP and Taltal. In this study we investigate the deformation at four active upper plate faults (dip-slip and strike-slip) located above the coupling zone of the subduction interface. The target faults (Mejillones Fault - MF, Salar del Carmen Fault - SCF, Cerro Fortuna Fault - CFF, Chomache Fault - CF) are situated in forearc segments, which are in different stages of the megathrust seismic cycle. The main question of this study is how strain is accumulated in the overriding plate, what is the response of the target faults to the megathrust seismic cycle and what are the mechanisms / processes involved. The hyper arid conditions of the Atacama desert and the extremely low erosion rates enable us to investigate geomorphic markers, e .g. fault scarps and knickpoints, which serve as a record for upper crustal deformation and fault activity about ten thousands years into the past. Fault scarp data has been acquired with Differential-GPS by measuring high-resolution topographic profiles perpendicular to the fault scarps and along incised gullies. The topographic data show clear variations between the target faults which possibly result from their position within the forearc. The surveyed faults, e. g. the SCF, exhibit clear along strike variations in the morphology of surface ruptures attributed to seismic events and can be subdivided into individual segments. The data allows us to distinguish single, composite and multiple fault scarps and thus to detect differences in fault growth initiated

  6. Patologías dentales en incisivos, caninos y primer premolar en caballos chilenos adultos Dental pathologies in incisors, canines and first premolar in adult Chilean horses

    Directory of Open Access Journals (Sweden)

    L Muñoz

    2010-01-01

    Full Text Available Las patologías dentales han ido tomando mayor relevancia clínico veterinaria, aumentando el número de consultas, tratamientos y procedimientos preventivos. En caballos chilenos, la información existente de patologías dentales es nula, por lo que se hace primordial la investigación y recolección de datos en esta raza. Se analizaron 100 caballos pertenecientes a la Asociación de Rodeo Concepción, entre los meses de junio y septiembre del año 2007. Los materiales que se utilizaron fueron puro, linterna, sonda odontológica y espejo odontológico. El examen incluyó reseña, anamnesis y examen dental, registrando todo lo encontrado en una ficha odontológica. Ochenta y ocho ejemplares presentaron algún tipo de patología dental (88%. Las patologías más frecuentes fueron fracturas con 46%, tártaro con 33% y braquignatia con 32%, todos estos ubicados en los incisivos (’01-‘03. Sesenta y siete caballos (55 machos y 22 hembras poseían uno o más caninos (77%. De éstos, 38 (49,35% presentaba patologías en caninos, siendo lo más frecuente caninos ciegos (24,67%. Se encontraron 16 equinos (13 machos y 3 hembras con uno o más primeros premolares (diente de lobo (16%, ninguno mandibular. Sólo se encontró un caso de patología en un primer premolar que correspondió a enfermedad periodontal. Se encontraron diferencias estadísticas asociadas al sexo, para boca en declive en incisivos y caninos ciegos.Dental pathologies have reached a higher veterinary clinical relevance, increasing the number of consultations, treatments and preventive proceedings. In Chilean horses, the information of dental pathologies is inexistent making the research and the data collection in this breed interesting. One hundred horses that came from the Asociación de Rodeo de Concepción, were analyzed between June and September 2007. The materials used were nosetwitch, flashlight, dental probe and intra-oral mirror. The visit started with an interview, followed

  7. Acanthosis nigricans as an indicator of insulin resistance in Chilean adult population Acantosis nigricans como un indicador de insulinoresistencia en población chilena adulta

    Directory of Open Access Journals (Sweden)

    A.C. Pinheiro

    2011-10-01

    Full Text Available Background: Insulin resistance (IR is associated with a higher risk of multiple diseases and its early detection would allow to minimize the associated risk; the presence of acanthosis nigricans (AN it´s associated to the presence of IR. Objective: To evaluate the sensibility and specificity of AN to diagnose IR in a group of Chilean patients. Methods: We designed a cross-sectional study and it was included subjects that were attended at the Center for the Attention of Metabolic Diseases at the Faculty of Medicine, University of Chile. Sixty subjects (18-60 years age were included. It was determined BMI and diagnosed AN and skin phototype; blood samples were taken and calculated the HOMA-IR. The normality of the variables where analyzed by Kolmogorov-Smirnov test. There were used χ² and the diagnostic concordance between AN and IR was determined using the Kappa index and Pearson´s correlation. Sensibility, specificity, positive and negative predictive value were calculated and accepted p Introducción: La presencia de resistencia a la insulina (RI se asocia a un mayor riesgo de padecer diversas enfermedades y su detección precoz permitiría minimizar el riesgo asociado; la presencia de acantosis nigricans (AN se asocia a la presencia de RI. Objetivo: Evaluar la sensibilidad y especificidad de la AN para diagnosticar RI en un grupo de pacientes chilenos. Método: Se realizó un estudio transversal y fueron incluidos sujetos atendidos por el Centro para Atención de Enfermedades Metabólicas, Facultad de Medicina, Universidad de Chile. En sesenta sujetos (18-60 años fueron determinados IMC, presencia de AN y fototipo de piel; muestras de plasma fueron tomadas para el cálculo del índice HOMA-IR. Fue analizada la normalidad de las variables con el test de Kolmogorov-Smirnov y utilizado χ² ; la concordancia diagnóstica entre AN y RI fue determinada con índice Kappa y correlación de Pearson. Fueron calculados sensibilidad, especificidad

  8. Locomotor activity of Phalerisida maculata Kulzer (Coleoptera, Tenebrionidae on Chilean sandy beaches Actividad locomotora de Phalerisida maculata Kulzer (Coleoptera, enebrionidae en playas arenosas chilenas

    Directory of Open Access Journals (Sweden)

    EDUARDO JARAMILLO

    2000-03-01

    Full Text Available The locomotor activity of the beetle Phalerisida maculata Kulzer (Coleoptera Tenebrionidae was studied on the surface of the substrate in two sandy beaches of the Chilean coast: one in north central (ca. 29ºS and the other in south central Chile (ca.39ºS. During the summer period of 1991 the circadian locomotor activity was studied in the southern beach, while during that of 1997 in both beaches. To analyze the activity, pitfall traps were used which were ordered along two transects extended between the upper beach and the resurgence zone. The traps were checked (i.e. collection of captured insects every two hours for a total period of 26 hours. The results showed that the adults of P. maculata were mostly active during the night hours, whereas the larvae were active during both, the day and night. Studies carried out in the beach located in south central Chile show that differences in the tidal range (neap vs. spring tides do not affect the activity patterns. During the locomotor activity, adult and larvae move to lower intertidal levels than those usually occupied while buried. Results of laboratory experiments using actographs under conditions of darkness and constant temperature, suggest that adults and larvae of P. maculata presented a circadian rhythm similar to that observed in the field experiments. It is concluded that P. maculata presents a behaviour that appear to be under control of an endogenous rhythm, without showing differences in the circadian rhythm of activity when beaches located at different latitudes are comparedSe estudió la actividad locomotriz del escarabajo Phalerisida maculata Kulzer (Coleoptera, Tenebrionidae sobre la superficie del sustrato de dos playas arenosas de la costa de Chile: una en el centro norte (ca. 29ºS y otra en el centro sur (ca. 39ºS. Durante el período estival de 1991 se estudió la actividad locomotriz circadiana en la playa del centro sur y durante el de 1997 en ambas playas. Para analizar

  9. Estado nutricional en escolares chilenos según la referencia NCHS y OMS 2007 Nutritional status in Chilean school children according to NCHS and WHO 2007 reference

    Directory of Open Access Journals (Sweden)

    E. Atalah Samur

    2012-02-01

    Full Text Available Antecedentes: El 2007 la OMS publicó una nueva referencia para evaluar el estado nutricional en niños y adolescentes de 5 a 19 años, que incluye tablas de índice de masa corporal (IMC por edad y sexo. Objetivo: Análisis comparativo del estado nutricional según IMC en escolares y adolescentes chilenos utilizando la norma vigente del Ministerio de Salud (NCHS y la nueva referencia OMS 2007. Material y métodos: Cohorte retrospectiva de 117.745 recién nacidos, con evaluación nutricional al ingresar a educación básica (1997 y enseñanza media (2005. Se analizó el estado nutricional según IMC en relación a las referencias NCHS 1977, OMS 2007 en desviaciones estándar (DE y en percentiles. Se evaluó la concordancia diagnóstica según los tres criterios con el índice Kappa. Resultados: Hubo pocas diferencias en la clasificación nutricional en primero básico (6,4 ± 0,3 años entre los tres criterios. En primero medio (14,4 ± 0,3 años fue mayor la prevalencia de bajo peso con ambas referencias OMS, de sobrepeso con OMS DE y de obesidad con OMS percentiles (p Background: In 2007, WHO published a new reference for assessing the nutritional status of children and adolescents aged 5 to 19 years, including body mass index (BMI by sex and age. Objective: To compare the nutritional assessment by BMI in schoolchildren and adolescents using the actual Chilean Ministry of Health norm (NCHS and the new WHO reference 2007. Material and methods: Retrospective cohort study of 117,745 newborns, with nutritional assessment on first year of basic education (1997 and later in high education (2005. We analyzed the nutritional status according to BMI for age in relation to the NCHS references and WHO 2007, in standard deviations (SD and percentiles. We analyzed the agreement between the different references with the Kappa index. Results: There were small differences in the nutritional classification in first grade (6,4 ± 0,3 years between the three

  10. Organic Compounds

    Science.gov (United States)

    Shankland, Kenneth

    For many years, powder X-ray diffraction was used primarily as a fingerprinting method for phase identification in the context of molecular organic materials. In the early 1990s, with only a few notable exceptions, structures of even moderate complexity were not solvable from PXRD data alone. Global optimisation methods and highly-modified direct methods have transformed this situation by specifically exploiting some well-known properties of molecular compounds. This chapter will consider some of these properties.

  11. LEARNING ORGANIZATIONS: PREREQUISITE FOR SUCCESSFUL TOURISM ORGANIZATIONS

    Directory of Open Access Journals (Sweden)

    Natasa Kraleva

    2011-06-01

    Full Text Available Nowadays, each and every organization, including the tourism organizations should be learning organizations. The globalization and the competition affect the process of working of tourism organizations, where only the organizations which have knowledge, and are learning organizations can succeed. In a time of constant change, tourism organizations can have a competitive advantage only if they can do something or offer something different than their competitors. Many organizations in order to enable the learning process, should firstly undertake changes in the organization design, the organizational culture and the leadership style. The paper discusses the relevance of implementing the process of learning organizations as a concept for successful tourism organizations.

  12. LEARNING ORGANIZATIONS: PREREQUISITE FOR SUCCESSFUL TOURISM ORGANIZATIONS

    OpenAIRE

    Natasa Kraleva

    2011-01-01

    Nowadays, each and every organization, including the tourism organizations should be learning organizations. The globalization and the competition affect the process of working of tourism organizations, where only the organizations which have knowledge, and are learning organizations can succeed. In a time of constant change, tourism organizations can have a competitive advantage only if they can do something or offer something different than their competitors. Many organizations in order to ...

  13. Learning organizations: Prerequisite for successful tourism organizations

    OpenAIRE

    Natasa Kraleva

    2011-01-01

    Nowadays, each and every organization, including the tourism organizations should be learning organizations. The globalization and the competition affect the process of working of tourism organizations, where only the organizations which have knowledge, and are learning organizations can succeed. In a time of constant change, tourism organizations can have a competitive advantage only if they can do something or offer something different than their competitors. Many organizations in order to ...

  14. Understanding differences in access and use of healthcare between international immigrants to Chile and the Chilean-born: a repeated cross-sectional population-based study in Chile

    Directory of Open Access Journals (Sweden)

    Cabieses Baltica

    2012-11-01

    Full Text Available Abstract Introduction International evidence indicates consistently lower rates of access and use of healthcare by international immigrants. Factors associated with this phenomenon vary significantly depending on the context. Some research into the health of immigrants has been conducted in Latin America, mostly from a qualitative perspective. This population-based study is the first quantitative study to explore healthcare provision entitlement and use of healthcare services by immigrants in Chile and compare them to the Chilean-born. Methods Data come from the nationally representative CASEN (Socioeconomic characterization of the population in Chile surveys, conducted in 2006 and 2009. Self-reported immigrants were compared to the Chilean-born, by demographic characteristics (age, sex, urban/rural, household composition, ethnicity, socioeconomic status (SES: education, household income, contractual status, healthcare provision entitlement (public, private, other, none, and use of primary services. Weighted descriptive, stratified and adjusted regression models were used to analyse factors associated with access to and use of healthcare. Results There was an increase in self-reported immigrant status and in household income inequality among immigrants between 2006 and 2009. Over time there was a decrease in the rate of immigrants reporting no healthcare provision and an increase in reporting of private healthcare provision entitlement. Compared to the Chilean-born, immigrants reported higher rates of use of antenatal and gynaecological care, lower use of well-baby care, and no difference in the use of Pap smears or the number of attentions received in the last three months. Immigrants in the bottom income quintile were four times more likely to report no healthcare provision than their equivalent Chilean-born group (with different health needs, i.e. vertical inequity. Disabled immigrants were more likely to have no healthcare provision compared

  15. Understanding differences in access and use of healthcare between international immigrants to Chile and the Chilean-born: a repeated cross-sectional population-based study in Chile

    Science.gov (United States)

    2012-01-01

    Introduction International evidence indicates consistently lower rates of access and use of healthcare by international immigrants. Factors associated with this phenomenon vary significantly depending on the context. Some research into the health of immigrants has been conducted in Latin America, mostly from a qualitative perspective. This population-based study is the first quantitative study to explore healthcare provision entitlement and use of healthcare services by immigrants in Chile and compare them to the Chilean-born. Methods Data come from the nationally representative CASEN (Socioeconomic characterization of the population in Chile) surveys, conducted in 2006 and 2009. Self-reported immigrants were compared to the Chilean-born, by demographic characteristics (age, sex, urban/rural, household composition, ethnicity), socioeconomic status (SES: education, household income, contractual status), healthcare provision entitlement (public, private, other, none), and use of primary services. Weighted descriptive, stratified and adjusted regression models were used to analyse factors associated with access to and use of healthcare. Results There was an increase in self-reported immigrant status and in household income inequality among immigrants between 2006 and 2009. Over time there was a decrease in the rate of immigrants reporting no healthcare provision and an increase in reporting of private healthcare provision entitlement. Compared to the Chilean-born, immigrants reported higher rates of use of antenatal and gynaecological care, lower use of well-baby care, and no difference in the use of Pap smears or the number of attentions received in the last three months. Immigrants in the bottom income quintile were four times more likely to report no healthcare provision than their equivalent Chilean-born group (with different health needs, i.e. vertical inequity). Disabled immigrants were more likely to have no healthcare provision compared to the disabled Chilean

  16. Glacial Retreat in Chilean Patagonia

    Science.gov (United States)

    2002-01-01

    The San Quintin Glacier is the largest outflow glacier of the Northern Patagonian Ice Field in southern Chile. Its terminus is a piedmont lobe just short of the Golfo de Penas on the Pacific Ocean and just north of 47oS. Like many glaciers worldwide during the twentieth century, San Quintin appears to be losing mass and possibly retreating. Such a change is evident in these two photographs taken by astronauts only seven years apart. The first was taken by the crew of STS-068 in October1994 and the second by the Increment 4 crew of the International Space Station in February 2002. Even with the reversal of season and different lighting conditions of these two acquisitions, a loss of mass and change of structure, particularly in the lobe, are strikingly evident in these comparative photos. Glaciers are one of the special topics identified as scientific objectives for monitoring with photography from the International Space Station. Astronaut photography is a complimentary source of remote sensing data available for use with other sensor systems being used to monitor and study glaciers (see an ASTER image of the San Quintin Glacier). They also provide strong, visual context information on glacier environments and processes using a familiar medium, the camera. Images STS068-260-73 and ISS004-E-7267 were provided by the Earth Sciences and Image Analysis Laboratory at Johnson Space Center. Additional images taken by astronauts and cosmonauts can be viewed at the NASA-JSC Gateway to Astronaut Photography of Earth.

  17. Organizing Process

    DEFF Research Database (Denmark)

    Hull Kristensen, Peer; Bojesen, Anders

    This paper invites to discuss the processes of individualization and organizing being carried out under what we might see as an emerging regime of change. The underlying argumentation is that in certain processes of change, competence becomes questionable at all times. The hazy characteristics...... of this regime of change are pursued through a discussion of competencies as opposed to qualifications illustrated by distinct cases from the Danish public sector in the search for repetitive mechanisms. The cases are put into a general perspective by drawing upon experiences from similar change processes...

  18. Entangling Organizations

    DEFF Research Database (Denmark)

    Strand, Anete Mikkala Camille

    2017-01-01

    The chapter accounts for the process of becoming of a changed practice within the area of disability care in the Municipality of Aalborg in Denmark. Across a period of a few months in the fall of 2015 a group of employees across the organization and an action researcher from Aalborg University (t....../ability and thereby the model opened the possibility for reworking the binary of ability/disability to the benefit of restorying the citizen’s ability in the practices of changing the disability care....

  19. Estudio de los textos de Historia y de Ciencias Sociales chilenos entre 2000 y 2010 Estudo dos textos de historia e de ciências sociais chilenos entre 2000 e 2010 Study of Chilean History and Social Science Textbooks between 2000 and 2010

    Directory of Open Access Journals (Sweden)

    Raquel Soaje-de Elias

    2012-04-01

    Full Text Available Analizar la calidad de los textos de Historia y de Ciencias Sociales, entregados por el Ministerio de Educación chileno a los estudiantes de establecimientos oficiales y subvencionados, es el objetivo de este trabajo. Se examinaron 35 textos editados entre 2000 y 2010. En la investigación de aplicó una encuesta a docentes de colegios subvencionados y de realizaron cuatro "focusgroup" con docentes de colegios particulares de alta calidad. En el estudio se tuvieron en cuenta las siguientes variables-, estructura y organización, contenido y metodología de los libros y se concluyó que sus contenidos presentan falencias, que se deben revisar para optimizar su uso como herramienta fundamental en el proceso de enseñanza y aprendizaje.Analisar a qualidade dos textos de história e de ciências sociais, entregues pelo Ministério da Educação chileno aos estudantes de estabelecimentos oficiais e subsidiados, é o objetivo deste trabalho. Examinaram-se 35 textos editados entre 2000 e 2010. Na pesquisa se aplicou uma enquête com docentes de colégios subsidiados e se realizaram quatro "focusgroup"com docentes de colégios particulares de alta qualidade. No estudo se consideraram as seguintes variáveis: estrutura e organização, conteúdo e metodología dos livros. Concluiu-se que seus conteúdos apresentam falências que se devem revisar para melhorar seu uso como ferramenta fundamental no processo de ensino e aprendizagem.The objective of this study was to analyze the quality of history and social science textbooks provided by the Chilean Ministry of Education to students at public and subsidized schools. Fifteen (is textbooks published between 2000 and 2010 were examined for that purpose. Teachers at subsidized schools were surveyed and four focus groups were conducted with teachers from several top-rated private schools. The study took into account the following variables-, structure and organization, content and methodology of the textbooks

  20. Carmen Luisa Letelier Valdés: su versátil contribución a la comunicación de la música chilena en el país y en el extranjero Carmen Luisa Letelier-Valdés: her versatile Contribution to the Communication of Chilean Music both in Chile and Abroad

    Directory of Open Access Journals (Sweden)

    Luis Merino Montero

    2012-06-01

    Full Text Available Sobre la base de los conceptos de "sociabilidad" e "institución" este trabajo considera el importante aporte que Carmen Luisa Letelier Valdés ha realizado en pro de la comunicación de la música chilena, tanto en Chile como en el extranjero, y por la vida musical del país.This article deals with the important contribution that Carmen Luisa Letelier-Valdés has made to the communication ofChilean music both in Chile and abroad as well as her important rôle in Chilean musical life. The study is based on the concepts of"sociability" and "institution".

  1. (INCONSTITUCIONALIDAD DE LA REGLA DE ATRIBUCIÓN PREFERENTE MATERNA DEL CUIDADO PERSONAL DE LOS HIJOS DEL ARTÍCULO 225 DEL CÓDIGO CIVIL CHILENO (Unconstitutionality of the preference towards the mother of the legal attribution of child physical custody of the article 225 section of the chilean civil code

    Directory of Open Access Journals (Sweden)

    Fabiola Lathrop Gómez

    2010-01-01

    Full Text Available El presente artículo sostiene que la norma de atribución preferente materna del cuidado personal de los hijos, contenida en el artículo 225 del Código Civil chileno, es inconstitucional, pues se funda en una discriminación arbitraria, injusta, no razonable y desproporcionada, vulneradora del principio de igualdad jurídica y material. Se analiza el caso chileno a la luz de los Tratados Internacionales de Derechos Humanos y del Derecho Comparado.The present article sustains that the preference towards the mother of the legal attribution of physical custody container] in the article 225 of the Chilean Civil Code, is unconstitutional, since is based in an arbitrary discrimination, unjust, not reasonable and disproportionate, that violates the principie of legal and material equality The Chilean case is analyzed in the light of International Human Rights Treaties and Comparative Law.

  2. Organic photovoltaics

    Science.gov (United States)

    Demming, Anna; Krebs, Frederik C.; Chen, Hongzheng

    2013-12-01

    Energy inflation, the constant encouragement to economize on energy consumption and the huge investments in developing alternative energy resources might seem to suggest that there is a global shortage of energy. Far from it, the energy the Sun beams on the Earth each hour is equivalent to a year's supply, even at our increasingly ravenous rate of global energy consumption [1]. But it's not what you have got it's what you do with it. Hence the intense focus on photovoltaic research to find more efficient ways to harness energy from the Sun. Recently much of this research has centred on organic solar cells since they offer simple, low-cost, light-weight and large-area flexible photovoltaic structures. This issue with guest editors Frederik C Krebs and Hongzheng Chen focuses on some of the developments at the frontier of organic photovoltaic technology. Improving the power conversion efficiency of organic photovoltaic systems, while maintaining the inherent material, economic and fabrication benefits, has absorbed a great deal of research attention in recent years. Here significant progress has been made with reports now of organic photovoltaic devices with efficiencies of around 10%. Yet operating effectively across the electromagnetic spectrum remains a challenge. 'The trend is towards engineering low bandgap polymers with a wide optical absorption range and efficient hole/electron transport materials, so that light harvesting in the red and infrared region is enhanced and as much light of the solar spectrum as possible can be converted into an electrical current', explains Mukundan Thelakkat and colleagues in Germany, the US and UK. In this special issue they report on how charge carrier mobility and morphology of the active blend layer in thin film organic solar cells correlate with device parameters [2]. The work contributes to a better understanding of the solar-cell characteristics of polymer:fullerene blends, which form the material basis for some of the most

  3. Entangled Organizations

    DEFF Research Database (Denmark)

    Strand, Anete Mikkala Camille

    the model opened the possibility for reworking the binary. The offset of the becoming of the revised model for cooperation was taken from a quantum approach to organizational development and change coined as ‘Organizational scenography’ as part of the methodology of Material Storytelling (Strand 2012). Here...... to embrace other dis/ability care facilities and dis/ability care workers/professionals nearby as well as the neighborhood of the village of citizens surrounding these facilities. Thus reworking previously upheld cuts between areas of responsibility of the Municipality/relatives and of Municipality...... for the employees and thereby support the bringing about of a cultural transformation. A changed relationality indeed brought about though reworking the binary dis/able. From the standpoint of a diffractive methodology (Barad 2007) the paper accounts for this project by being organized in four parts that together...

  4. Actividad física y cambios cardiovasculares y bioquímicos del caballo chileno a la competencia de rodeo Physical activity, cardiovascular and biochemical changes of Chilean purebred horses to rodeo competitions

    Directory of Open Access Journals (Sweden)

    R. PEREZ

    1997-01-01

    que el rodeo constituye un ejercicio de fuerza, velocidad y resistencia, que determina importantes modificaciones en la actividad cardiovascular, metabólica y endocrina, que corresponden a adaptaciones observadas en caballos sometidos a ejercicios de alta intensidad.A study, in order to characterize the level of physical work and the physiological and biochemical response of the Chilean purebred horse during the rodeo competition was carried out. Hippometric measurements of horses were taken and the weight of the rider, saddle and bridle were also determined. The perimeter of the rodeo track was measured in order to determine the work speed during the competition. Before and at different times after the first ride of a steer, the heart rate was recorded and blood samples were taken to measure packed cell volume (PCV, total proteins, haemoglobin, glucose, lactic acid, triglycerides, insulin, cortisol and the electrolytes: sodium, potassium, calcium and chloride. The plasma activity of the enzymes creatinekinase (CK, lactate dehydrogenase (LDH and aspartate aminotransferase (AST were also determined. It is concluded that the Chilean purebred horse is characterized by a low height of withers, with a body length/heart girth ratio that agrees with a medium size horse of 392 ± 33 kg body weight. These characteristics match those described in the standard values for the Chilean criollo horse. The principal physical activity that the Chilean horse carries out during the rodeo is to ride a 318 ± 11 kg body weight steer and to stop it in the track wall, carrying on its back a weight equivalent to 24% of its body weight, at speeds ranging between 5-8 m/s over a sand and circular track; exercise that determines significant increases in HR, PCV and in the plasma concentrations of haemoglobin, glucose, lactic acid, triglycerides, insulin, cortisol and in the serum activity of enzymes CK, LDH and AST. Increases in total serum proteins and a delayed decrease in serum potassium

  5. Hierarchical organization versus self-organization

    OpenAIRE

    Busseniers, Evo

    2014-01-01

    In this paper we try to define the difference between hierarchical organization and self-organization. Organization is defined as a structure with a function. So we can define the difference between hierarchical organization and self-organization both on the structure as on the function. In the next two chapters these two definitions are given. For the structure we will use some existing definitions in graph theory, for the function we will use existing theory on (self-)organization. In the t...

  6. EVALUACIÓN DEL NIVEL DE ADOPCIÓN DE INTERNET EN LAS UNIVERSIDADES CHILENAS EN BASE AL MODELO eMICA EVALUATION OF THE INTERNET ADOPTION LEVEL IN CHILEAN UNIVERSITIES BASED ON THE eMICA MODEL

    Directory of Open Access Journals (Sweden)

    Narciso Cerpa

    2007-12-01

    Full Text Available Este estudio investiga el grado de adopción de las tecnologías de Internet en las universidades chilenas, como sistema de promoción y coordinación de sus actividades, considerando el rol de esta tecnología en la comunicación efectiva con los diferentes actores sociales que se relacionan con la universidad, tales como empresas, instituciones, personas y postulantes. Esta plataforma tecnológica también juega un rol a diario y muy importante en la comunicación entre miembros internos: administrativos, académicos y alumnos. El estudio consistió en el análisis de los sitios Web de todas las universidades chilenas bajo la metodología, eMICA, un modelo extendido de adopción de comercio electrónico en Internet [3]. Los resultados de este estudio indican que las universidades en general hacen un buen uso de las tecnologías de Internet que permite a una gran mayoría (98,3% de éstas, realizar promoción y suministro de información con un alto grado de sofisticación e interactividad (etapa 2, nivel 3 del modelo eMICA. Además, gran parte (75% de las universidades nacionales muestran un alto grado de adopción de tecnologías de Internet, ya que cuentan con aplicaciones (administrativas, académicas, promocionales, etc. que permiten hacer transacciones por medio de la Web y, por lo tanto, se encuentran en la etapa más alta, procesamiento, de acuerdo al modelo utilizado.The main objective of this study is to investigate the degree of Internet technologies adoption in by chilean universities. These universities use the Web as a promotion system and for the coordination of their operational activities, highlighting the role of this technology in the effective communication between the different social actors that interact with the university, namely, enterprises, institutions, people and potential students. This Web-based platform plays also an important role in daily communication among administrative staff, faculty, and students. This

  7. The need for a hydromorphological approach to Chilean river management La necesidad de un enfoque hidromorfológico para la gestión de los ríos chilenos

    Directory of Open Access Journals (Sweden)

    ANDREA ANDREOLI

    2012-09-01

    Full Text Available The manuscript reflects the opinion of the authors about the need for a hydromorphological approach for the management of Chilean rivers. A brief state-of-the-art of the recent scientific advances on hydromorphological approach to river management is presented, as well as a general overview of the conditions of Chilean rivers and the mayor disturbances they suffer. Moreover, the need to take into account both direct and indirect services provided by rivers in the decision making process on river management is underlined. Hydromorphology is claimed to be a main element to be considered while assessing the ecological state of rivers. Understanding how the hydrological and morphological variables interact dynamically is indeed key to assess the presence or absence of dynamic equilibrium, a condition that, in turn, promotes both habitat diversity and self-sustainable aquatic and riparian ecosystems. The authors also emphasized the need for a change of paradigm in current Chilean rivers management practices, by developing a unified framework to assess hydromorphological and ecological river conditions. In addition, the implementation of specific legislation aimed at promoting ecological and geomorphological standards in river management practice, and the strengthening and widening of the academic teaching of fluvial ecology and geomorphology is suggested.El manuscrito refleja la opinión de los autores acerca de la necesidad de aplicar un enfoque hidromorfológico para la gestión de los ríos chilenos. Se presenta una breve reseña de los últimos avances científicos sobre el enfoque hidromorfológico en la gestión de ríos, así como una visión general de las condiciones de los ríos chilenos y sus mayores perturbaciones. Por otra parte, se hace énfasis en la necesidad de incluir en la toma de decisiones los servicios directos como los indirectos proporcionados por los ríos. Se afirma que la hidromorfología es un elemento fundamental a

  8. Evaluación mediante enumeración de estados de la confiabilidad del Sistema Interconectado del Norte Grande de Chile (SING State enumeration approach in reliability assessment of the Chilean far north power system (SING

    Directory of Open Access Journals (Sweden)

    Víctor Fuentes Morales

    2011-08-01

    Full Text Available En este trabajo se presenta una evaluación de la confiabilidad del SING* chilen, mediante el método probabilístico analítico enumeración de estados que permite determinar el índice de indisponibilidad del sistema de transmisión y el factor de sobrecosto asociado. Esta evaluación posibilita un análisis comparativo con el índice de indisponibilidad y el factor de sobrecosto asociado que el agente regulador chileno, CNE**, entrega para este sistema en los informes técnicos de precios de nudo. De esta manera, los resultados propuestos sugieren una solución a las reiteradas observaciones que realizan las empresas eléctricas del SING en los informes técnicos de precios de nudo, con respecto a los criterios utilizados para modelar y determinar la indisponibilidad de transmisión y los sobrecostos asociados. La evaluación de la confiabilidad se realiza abordando al SING en forma compuesta, es decir, considerando tanto las instalaciones de generación como de transmisión en conjunto. * SING: Sistema Interconectado del Norte Grande. Sistema de transmisión de energía eléctrica de alto voltaje del norte de Chile. ** CNE: Comisión Nacional de Energía. Organismo gubernamental chileno que fiscaliza los sistemas de transmisión de energía eléctrica.This paper presents a reliability evaluation of the Chilean SING* by means of an analytical and probabilistic method for the enumeration of states, which permits to determine the unavailability index and the associated overcharge factor. This evaluation allows a comparative analysis between the unavailability index and the associated overcharge factor, the CNE**, provides in its technical reports of local the nodal price. Hereby, the proposed results suggest a solution for continuous observations made by SING electric companies in the technical reports of nodal price, with respect to the criteria used for modeling and determining the unavailability of transmition and associated overcharge

  9. New evidence about the subduction of the Copiapó ridge beneath South America, and its connection with the Chilean-Pampean flat slab, tracked by satellite GOCE and EGM2008 models

    Science.gov (United States)

    Álvarez, Orlando; Gimenez, Mario; Folguera, Andres; Spagnotto, Silvana; Bustos, Emilce; Baez, Walter; Braitenberg, Carla

    2015-11-01

    Satellite-only gravity measurements and those integrated with terrestrial observations provide global gravity field models of unprecedented precision and spatial resolution, allowing the analysis of the lithospheric structure. We used the model EGM2008 (Earth Gravitational Model) to calculate the gravity anomaly and the vertical gravity gradient in the South Central Andes region, correcting these quantities by the topographic effect. Both quantities show a spatial relationship between the projected subduction of the Copiapó aseismic ridge (located at about 27°-30° S), its potential deformational effects in the overriding plate, and the Ojos del Salado-San Buenaventura volcanic lineament. This volcanic lineament constitutes a projection of the volcanic arc toward the retroarc zone, whose origin and development were not clearly understood. The analysis of the gravity anomalies, at the extrapolated zone of the Copiapó ridge beneath the continent, shows a change in the general NNE-trend of the Andean structures to an ENE-direction coincident with the area of the Ojos del Salado-San Buenaventura volcanic lineament. This anomalous pattern over the upper plate is interpreted to be linked with the subduction of the Copiapó ridge. We explore the relation between deformational effects and volcanism at the northern Chilean-Pampean flat slab and the collision of the Copiapó ridge, on the basis of the Moho geometry and elastic thicknesses calculated from the new satellite GOCE data. Neotectonic deformations interpreted in previous works associated with volcanic eruptions along the Ojos del Salado-San Buenaventura volcanic lineament is interpreted as caused by crustal doming, imprinted by the subduction of the Copiapó ridge, evidenced by crustal thickening at the sites of ridge inception along the trench. Finally, we propose that the Copiapó ridge could have controlled the northern edge of the Chilean-Pampean flat slab, due to higher buoyancy, similarly to the control

  10. Distribution of inorganic and organic nutrients in the South Pacific Ocean – evidence for long-term accumulation of organic matter in nitrogen-depleted waters

    Directory of Open Access Journals (Sweden)

    F. Cerutti

    2007-08-01

    Full Text Available The BIOSOPE cruise of the RV Atalante was devoted to study the biogeochemical properties in the South Pacific between the Marquesas Islands (141° W–8° S and the Chilean upwelling (73° W–34° S. The 8000 km cruise had the opportunity to encounter different trophic situations, and especially strong oligotrophic conditions in the Central South Pacific Gyre (SPG, between 123° W and 101° W. In this isolated region, nitrate was undetectable between surface and 160–180 m, while regenerated nitrogen (nitrite and ammonium only revealed some traces (<20 nmoles l−1, even in the subsurface maximum. Integrated nitrate over the photic layer, which reached 165 m, was close to zero. In spite of this severe nitrogen-depletion, phosphate was always present at significant concentrations (≈0.1 μmoles l−1, while silicate maintained at low but classical oceanic levels (≈1 μmoles l−1. In contrast, the Marquesas region (MAR at west and Chilean upwelling (UPW at east were characterized by large nutrient contents one hundred to one thousand fold higher than in the SPG. Distribution of surface chlorophyll concentration reflected this gradient of nitrate availability. The lowest value (0.023 nmoles l−1 was measured in the centre of the SPG, where integrated chlorophyll over the photic layer was very weak (≈10 mg m−2, since a great part (up to 50% of the deep chlorophyll maximum (DCM was located below the 1% light. But, because of the relative high concentration encountered in the DCM (0.2 μg l−1, chlorophyll a content over the photic layer varied much less (by a factor 2 to 5 than the nitrate content. In contrast to chlorophyll a, integrated content of particulate organic matter (POM remained more or less constant along the investigated area (500 mmoles m−2, 60 mmoles m−2 and 3.5 mmoles m−2 for particulate organic carbon, particulate organic nitrogen and particulate organic phosphorus, respectively, except in the upwelling where values

  11. 智利高中生习得普通话声调的实验研究%Acoustic Experimental Research on Chilean High School Students’ Acquisition of Mandarin Monosyllabic Tone

    Institute of Scientific and Technical Information of China (English)

    周镇

    2016-01-01

    对智利一所公立高中二年级的学生进行普通话四声的听辨测试和单字调声学实验研究,得出听辨容易度顺序为:去声>上声>阴平>阳平;四声发音正确率排序为:去声>上声>阴平>阳平。通过此次个体研究的结论进行问题分析,可制定出针对智利等其他西语国家汉语学习者简单且高效的四声教学方案。%This research mainly explored the 2nd-grade students’ acquisition of mandarin monosyllabic tone at a public Chil-ean high school. Through the acoustic experiment, it could be summarized that T4 was the easiest for them to be recognized a-coustically and T2 was the most difficult one, with the order of easiness should be T4>T3>T1>T2. The accuracy of the sample pronunciation could be sorted as T4>T3>T1>T2. According to the conclusion, relevant phonetic problems were analyzed, and ef-fective teaching plans for learners from Chile and even from Spanish-speaking countries were proposed.

  12. Price components of Brazilian, Argentinean and Chilean wines: a hedonic price analysis Componentes dos preços dos vinhos brasileiros, argentinos e chilenos: uma análise de preços hedônicos

    Directory of Open Access Journals (Sweden)

    Marcos Roberto Luppe

    2005-12-01

    Full Text Available The theory of hedonic prices was used to investigate if descriptive information, on the labels of the 229 fine Brazilian, Argentinean and Chilean wines surveyed, had an influence on the retail price in Brazil. The producing country, vintage, grape variety and growing region were the aspects analyzed. The characteristics that most impacted the price of these wines were the producing country and grape variety.Este artigo utiliza o conceito da teoria dos preços hedônicos para investigar se as informações contidas nos rótulos dos vinhos finos brasileiros, argentinos e chilenos vendidos no mercado influenciam o preço desses produtos. As características analisadas são: o país de produção, a safra, a variedade da uva e a região de produção. O estudo analisou uma amostra de 229 vinhos e os resultados obtidos indicam que as características que mais impactam o preço dos vinhos analisados são: o país produtor e a variedade da uva.

  13. Sentido y Sinsentido de la Violencia Escolar: Análisis Cualitativo del Discurso de Estudiantes Chilenos Sense and Nonsense of School Violence: Qualitative Analysis of Chilean Students Discourse

    Directory of Open Access Journals (Sweden)

    Mauricio García

    2005-05-01

    Full Text Available La pregunta por la violencia escolar sigue aumentando la inquietud de la comunidad y de los investigadores, desde que hace tres décadas se planteó como un problema disciplinar. Sin embargo, gran parte de estas investigaciones se han centrado en la incidencia estadística del fenómeno y en sus factores determinantes, dejando de lado en gran parte de ellos, las representaciones de los propios actores de la violencia escolar. La presente publicación pretende responder a la interrogante por el sentido de la violencia escolar, a partir de los resultados de una investigación de metodología cualitativa, donde se analizaron los discursos y representaciones sobre este fenómeno, de estudiantes de enseñanza media de Chile que fueron considerados, por sus instituciones educativas, como agresivos o problemáticos.The question about school violence continues increasing the worries of community members and researchers, since its establishment as a disciplinary problem three decades ago. However, a great part of the research in the area has focused in the statistical incidence of the phenomenon and the factors that determine it, leaving aside in a large part of them, the actors' own representations. The present article seeks to respond to the query for the sense of the school violence, extracted from a qualitative study, which analyzed the speech and representations of Chilean high school students, considered aggressive and problematic by their educational institutions.

  14. Propuestas para la formación en educación en medios en profesores chilenos Criteria of Media Education Program for Chilean teachers: A proposal for Continuous Training

    Directory of Open Access Journals (Sweden)

    María del Mar de Fontcuberta Balaguer

    2009-03-01

    Full Text Available Este trabajo, desarrollado por un grupo de investigación chileno, expone los resultados de una investigación sobre la presencia de la educación en medios en el currículum de la enseñanza media chilena, los problemas que plantea y la formación y actitudes de los profesores de Lengua Castellana y Comunicación en ese ámbito. Para su análisis adopta las definiciones y parámetros contemplados por la UNESCO en Viena (1999 y Sevilla (2002 que indican, entre otros aspectos, que la educación en medios trata sobre la enseñanza y el aprendizaje «con» y «sobre» los medios, más que «a través» de los medios. El estudio concluye con una propuesta para implementar la formación continua de profesores en ese campo. The article explains the results of a research about Media Education in Chilean Secondary School curriculum, its problems, and training and attitudes of teachers of Spanish Language and Communication. The analysis applies definitions and parameters adopted by UNESCO in Viena (1999 and Seville (2002 which indicate that Media Education means to teach and learn «with»» and «about» media more than «through» media. It proposes a schedule for continuous training of teachers in this field.

  15. La Flacso chilena y la regionalización de las ciencias sociales en América Latina (1957-1973 The Chilean Flacso an the Regionalization of Social Sciences in Latin America (1957-1973

    Directory of Open Access Journals (Sweden)

    Fernanda Beigel

    2009-06-01

    Full Text Available Este trabajo aborda la formación de la Facultad Latinoamericana de Ciencias Sociales (Flacso, como resultado de estrategias de institucionalización que articularon distintos agentes, poseedores de diversas especies de capital material y simbólico: a un conjunto de académicos; b la Universidad de Chile y el gobierno de ese país, y c la UNESCO. El artículo muestra que en la etapa chilena Flacso constituyó un caso excepcional de desarrollo académico en la región, enmarcado en un periodo favorable para el latinoamericanismo dentro de la UNESCO y acompañado de una suerte de "estatización" por parte de Chile, que repercutió directamente en la modalidad inicial de su desarrollo.This article examines the establishment of the Latin American Social Science Faculty (Flacso as the result of a strategy of institutionalization that linked the interests of various agents possessing various kinds of material and symbolic capital: a a set of Latin American academics, b the University of Chile, and the government of that country and c UNESCO. The article shows that the Chilean stage of Flacso constituted an exceptional case of academic development in the region, framed by a favorable period for Latinamericanism in UNESCO accompanied by a sort of "statization" on the part of Chile that directly affected the way it developed.

  16. Evaluación psicométrica de la escala de conducta delictiva y violenta en el aula, en estudiantes chilenos (Psychometric Assessment Of The Criminal And Violent Behavior Scale In The Classroom, In Chilean Students

    Directory of Open Access Journals (Sweden)

    Daniela Vera-Bachmann

    2014-12-01

    Full Text Available RESUMEN: Se reporta evidencia empírica sobre las propiedades psicométricas de la Escala de conducta delictiva y violenta en el aula, en una muestra de 877 estudiantes secundarios chilenos, cuyas edades están comprendidas entre los 13 y los 20 años (M = 15.94, DT = 1.31. Los análisis factoriales exploratorios y confirmatorios han aportado evidencia de validez cruzada, corroborando la estructura original de dos factores; factor conducta violenta disruptiva y factor victimización. Las medidas de consistencia interna y homogeneidad fueron satisfactorias para ambas subescalas, así como su correlación con medidas de clima social escolar. Se concluye que esta escala brinda garantías de confiabilidad y validez para su uso en Chile. ABSTRACT: Empirical evidence is reported on the psychometric properties of the Scale of criminal and violent behaviorin the classroom, in a sample of 877 Chilean high school students, between the ages of 13 and 20 (M = 15.94, DT = 1.31 . Exploratory and confirmatory factor analysis have provided evidence of cross validity, corroborating the original two factor structure; the violent behavior disruptive factor and the victimization factor. Measures of internal consistency and uniformity were satisfactory for both subscales, as well as their correlation with school social climate measures. It is concluded that this scale provides guarantee of reliability and validity for its use in Chile.

  17. What Are the Role and Impact of Public-Private Partnerships in Education? A Realist Evaluation of the Chilean Education Quasi-Market

    Science.gov (United States)

    Verger, Antoni; Bonal, Xavier; Zancajo, Adrián

    2016-01-01

    The superiority of market mechanisms in educational provision is a premise that has received renewed emphasis under the regime of public-private partnerships (PPPs). The central idea of PPPs--enthusiastically embraced by a range of international organizations, development agencies and scholars--is grounded in the assumption that competition…

  18. Ordered organic-organic multilayer growth

    Science.gov (United States)

    Forrest, Stephen R; Lunt, Richard R

    2015-01-13

    An ordered multilayer crystalline organic thin film structure is formed by depositing at least two layers of thin film crystalline organic materials successively wherein the at least two thin film layers are selected to have their surface energies within .+-.50% of each other, and preferably within .+-.15% of each other, whereby every thin film layer within the multilayer crystalline organic thin film structure exhibit a quasi-epitaxial relationship with the adjacent crystalline organic thin film.

  19. Yersinia enterocolitica organism (image)

    Science.gov (United States)

    This picture shows the organism Yersinia enterocolitica . Yersinia organisms cause a wide range of disease but are most often associated with diarrhea or gastrointestinal symptoms. Yersinia infection is ...

  20. Relationship between bioenergetics responses and organic pollutants in the giant mussel, Choromytilus chorus (Mollusca: Mytilidae).

    Science.gov (United States)

    Toro, Beatriz; Navarro, Jorge M; Palma-Fleming, Hernán

    2003-05-08

    Samples of Choromytilus chorus (giant mussel) were collected at three sampling stations exposed to different degrees of pollution along the south-central portion of the Chilean coast in spring 1998 and summer 1999. Measurements were carried out on clearance rate, absorption efficiency, and oxygen consumption of the mussels under controlled laboratory conditions, and related to analytical data on organic pollutants in their tissues. Scope for growth (SFG) was employed as a physiological index to evaluate stress produced by pollutants existing at each sampling site. Individuals from San Vicente bay (highly polluted) showed negative SFG values in spring (-4.6 J/h per g) and summer (-3.5 J/h per g). These results indicated severe stress related to the accumulation of toxic compounds in their tissues. Specimens from Corral bay (medium level of pollution) gave a SFG of 15.5 J/h per g in spring and 6.5 J/h per g in summer, while those from Yaldad bay (low pollution) presented an inverse situation was observed with SFG values of 6.2 J/h per g in spring which was lower than the summer value of 25.7 J/h per g. There was a significant negative correlation between the SFG of the different populations of C. chorus and the concentrations of organochlorines (OChs) and polynuclear aromatic hydrocarbons (PAHs) in their tissues.

  1. Diagnóstico de la competencia comunicativa en inglés de un grupo de escolares chilenos:: puntos de encuentro con su perfil estratégico A diagnosis of the English communicative competence of a group of Chilean students: - Some common issues with their strategic profile

    Directory of Open Access Journals (Sweden)

    María Gabriela Sanhueza Jara

    Full Text Available Resumen Recientemente, el Ministerio de Educación de Chile aplicó por primera vez una evaluación de las habilidades receptivas en inglés a todos los estudiantes de tercer año de enseñanza media del país. Este diagnóstico permitió advertir que en las áreas de comprensión auditiva y comprensión lectora alcanzan niveles insuficientes. Sin embargo, aún es muy poco lo que se ha investigado, en el contexto educacional chileno, acerca del estado de la competencia comunicativa de nuestros jóvenes en lengua inglesa. La presente investigación se propone establecer algunos puntos de encuentro entre la descripción de la competencia comunicativa en inglés de un grupo de escolares chilenos y el perfil de estrategias de aprendizaje de lengua extranjera que les caracteriza. Este estudio corresponde a uno descriptivo, transversal, de caso único. Los datos analizados provienen de los informes de resultados de la aplicación del examen First Certificate in English y de un perfil estratégico de aprendizaje de inglés como idioma extranjero obtenido a partir del cuestionario Strategy Inventory for Language Learning.Abstract Recently, the Chilean Ministry of Education has applied for the first time, an assessment of the receptive skills in the English language of every Chilean third year high school student. This diagnosis evinced that in the areas of listening and reading comprehension, the students'level was unsatisfactory. Nevertheless, what has been investigated with respect to the Chilean school students'level of communicative competence in English has been very little. The present investigation seeks to establish some common issues between the description of the communicative competence of the Chilean students and their typical, foreign language learning strategic profile. This unique case study is one that is descriptive and transversal. Analyzed data was gathered from the First Certificate in English examination reports and a strategic

  2. Efecto de la calidad de la información sobre la acreditación institucional: un estudio exploratorio en universidades chilenas Effect of quality of information on institutional accreditation: an exploratory study on Chilean universities

    Directory of Open Access Journals (Sweden)

    Emilio Rodríguez-Ponce

    2012-12-01

    processes. Secondly, because the dissemination of information of universities is stimulated when their results meet recognized quality criteria. In order to test such statements the quality of information is correlated to the global institutional quality of Chilean Universities, using a sample of the 29 Chilean institutions ranked by Webometrics among the top 5000 in terms of the quality of their Websites and considering the respective institutional accreditation results. As a result, an explanatory model is obtained, where the effect of quality of information on institutional quality of university, measured as years of accreditation, amounts to 62.8%. This means that there is a trend significantly linking the quality of the information with the quality of the universities.

  3. Husbandry practices associated with the presentation of abnormal behaviours in Chilean Creole horses Prácticas de manejo asociadas a la presentación de conductas anormales en caballos Criollo chileno

    Directory of Open Access Journals (Sweden)

    T Tadich

    2012-01-01

    Full Text Available Abnormal behaviours usually develop in environments that are suboptimal for the horses and tend to reduce their welfare. The aim of this study was to determine the prevalence of abnormal behaviours in Chilean Creole horses, and associate their presentation with characteristics of the animal and their management. Twenty-three breeding centres were surveyed face to face through their veterinarians. Information on 441 horses was obtained, of which 116 were foals or yearlings that did not present any abnormal behaviours. Of the remaining 325 adult horses 11.1% presented abnormal behaviours; 3.1% corresponded to stereotypes and 8% to wood-chewing. A significant association was found between sex (stallions and the presentation of abnormal behaviours, while function was also significantly associated, with combination of sport and reproductive activities presenting a higher risk. In relation to husbandry practices horses received feeding 2 or 3 times daily. Diets comprised on average 50% roughage from the total feed ration (roughage + oats. A significant association was found between providing less than 60% of forage in the diet and the presentation of abnormal behaviours. Forty one percent of horses were kept in stables for over 6 hours per day, 37% had no type of contact with conspecifics while in the stable and 21% had straw bedding. None of these practices were associated with the presentation of abnormal behaviours. Establishing factors related to the development of abnormal behaviours in horses can allow improvement of their welfare through the implementation of appropriate husbandry practices in the equine production systems of the Chilean Creole horse.Las conductas anormales generalmente se desarrollan en ambientes subóptimos para el equino y tienden a reducir su bienestar. El objetivo de este estudio fue determinar la prevalencia de conductas anormales en equinos Criollo chileno, asociando su presentación a características del animal y de su

  4. Forested habitat preferences by Chilean citizens: Implications for biodiversity conservation in Pinus radiata plantations Preferencia por hábitats forestales por ciudadanos chilenos: Implicancias para la conservación de biodiversidad en plantaciones de Pinus radiata

    Directory of Open Access Journals (Sweden)

    NICOLE PÜSCHEL-HOENEISEN

    2012-06-01

    Full Text Available The need for conservation outside protected areas has prompted the modification of productive practices to allow the maintenance of wild biota in productive landscapes such as those associated to timber production. Forest plantations could cooperate in conserving biodiversity outside protected areas if they have a developed understory. However, the success of the production changes depends on the social support they receive. Therefore, we evaluate Chilean citizens' preference for five habitats of different types of forest management. In addition, we assessed perceptions regarding the relationship between pine plantations and native wildlife through surveys administered in Chillán, Santiago and six rural localities in the VII and VIII region. Despite there is not a unanimous opinion regarding pine plantations as a threat to biodiversity, people prefer pine plantations that serve as habitat for endangered fauna. In fact, they agree on paying more for forest products to contribute to conservation in forest plantations, and actually prefer plantations with a developed understory better than those without it. This would suggest that measures aimed at conservation in forest plantations could be supported by the Chilean society.La necesidad de la conservación fuera de áreas protegidas ha llevado a la modificación de las prácticas productivas para permitir el mantenimiento de la biota silvestre en paisajes productivos tales como los asociados a la producción de madera. Las plantaciones forestales podrían cooperar en la conservación de la biodiversidad fuera de áreas protegidas si tienen un sotobosque desarrollado. Sin embargo, el éxito de los cambios en la producción depende del apoyo social que estos reciben. Así, evaluamos la preferencia por cinco paisajes con diferentes tipos de manejo forestal. Además, se evaluó la percepción acerca de la relación entre las plantaciones de pino y la fauna nativa a través de encuestas realizadas en

  5. Zoogeografía de macroinvertebrados bentónicos de la costa de Chile: contribución para la conservación marina Zoogeography of benthic macroinvertebrates of the Chilean coast: contribution for marine conservation

    Directory of Open Access Journals (Sweden)

    DOMINGO A. LANCELLOTTI

    2000-03-01

    attention, although with little emphasis on its biogeographical significance. The present study analyses an updated data base on 1,601 littoral benthic species, belonging to: Demospongiae, Anthozoa, Polychaeta, Mollusca, Crustacea, Echinodermata y Ascideacea, whose records grouped into 10 zones, have been studied from the zoogeographic perspective. The groups best represented along the Chilean coast include the Mollusca (611 species, Polychaeta (403 and the Crustacea (370, with an important influence on its general pattern of biodiversity. This biodiversity showed a mild but progressive increase along the latitudinal gradient from north to south, interrupted by maxima which appear to reflect differences in study effort rather than normal behavior. The degree of relationship between zones showed three faunistic units recently defined by Lancellotti & Vásquez. This arrangement, which was evident in the most diverse groups, became altered in the lesser speciose groups where differences obeyed a pattern of affinity to particular zones within the Transitional Temperate Region. The presence of a zoogeographic break near 41º S, as broadly suggested in the literature, was only seen in data for the Echinodermata and the Demospongiae; other taxa show the existence of a region of transitional character having gradual replacement of species. Within the Regions, the biodiversity showed great homogeneity, contrary to endemism, which reached 52% in the Cold Temperate Region, as a consequence of an important number of single species records (38.2% species recorded in only one zone. This represents the present lack of knowledge of the Chilean fauna, probably overestimating regional endemism, and thus distorting knowledge of local patterns of biodiversity

  6. New evidence of the sabertooth cat Smilodon (Carnivora: Machairodontinae in the late Pleistocene of southern Chilean Patagonia Nueva evidencia del gato dientes de sable Smilodon (Carnivora: Machairodontinae en el Pleistoceno tardío de Patagonia meridional chilena

    Directory of Open Access Journals (Sweden)

    ALFREDO PRIETO

    2010-06-01

    Full Text Available Southern Patagonia is rich in late Pleistocene mammals, especially herbivores such as Camelids, Equids and Xenarthrans. Carnivores, on the other hand, are not commonly found in the paleontological record. One genus, Smilodon, is of particular interest because its presence in the region has not been demonstrated. In this paper, we present new fossil dental evidence that supports the presence of Smilodon populator (Lund in the region. This evidence corresponds to the most southern record of the genus in the world, and the final step in the colonization of South America after the Great American Biotic Interchange. An AMS radiocarbon date on teeth indicates that the remains from Southern Chilean Patagonia are the most recent record for the genus in South America.Surpatagonia es particularmente rica en mamíferos finiplesitocenos, particularmente camélidos, équidos y xenartros. Los carnívoros, por su parte, se encuentran representados en menor número en el registro paleontológico. Dentro de estos, el género Smilodon, es de particular interés debido a que su presencia en la región no ha sido convincentemente demostrada. En este trabajo presentamos evidencia dental que permite confirmar la presencia de Smilodon populator (Lund en la región. Esta evidencia corresponde al registro más sureño de este taxón y al paso final en la colonización de América del Sur después del Gran Intercambio Biótico Americano. Un fechado radiocarbónico directo AMS indica que los restos de Patagonia del Sur corresponden a los registros más tardíos para este género en el subcontinente.

  7. Dolores políticos: reacciones cinematográficas. Resistencias melancólicas en el cine chileno contemporáneo Political Grieves: Cinematographic Reactions. Melancholy Resistances in Chilean Contemporary Cinema

    Directory of Open Access Journals (Sweden)

    Antonella Estévez

    2010-07-01

    Full Text Available Este texto se acerca a las relaciones entre cine y política desde los efectos que puede producir la segunda en las formas del primero. Desarrolla una mirada a cierto cine chileno contemporáneo y a las características formales que lo agrupan y propone que estas singularidades son una respuesta cinematográfica a las condiciones político- sociales que a los realizadores de estas películas les ha tocado vivir. Se desarrolla el concepto de "Melancolía Cinematográfica", y se da cuenta de los orígenes que tendría esa melancolía en el Chile actual. Sostenemos que a través de sus elecciones formales el cine puede acercarse a lo impresentable, y mediante la emergencia de los recursos de su construcción lograr atravesar la cascara de lo superficial.The following text approaches the links between cinema and politics, considering the effects the second issue can produce upon the first. It develops an outlook on a certain type of Chilean contemporary films and the formal cha- racteristics which gathers them, arguing that these singularities must be seen as a cinematographic response to the sociopolitical conditions the directors have expe- rienced. The author displays the notion of "cinematographic melancholy", and the origins of this melancholy in the present day Chile. Through its formal decisions the cinema can get closer to what is unpresentable and by means of its resources, pierce the shell of superficiality.

  8. Gestión del Tiempo en 12 Salas Chilenas de Kindergarten: Recreo, Colación y Algo de Instrucción Time Management in 12 Chilean Kindergarten Classrooms: Recess, Snack and a Little Teaching

    Directory of Open Access Journals (Sweden)

    Katherine Strasser

    2009-01-01

    Full Text Available Este estudio examinó la gestión del tiempo en 12 salas de kindergarten chilenas de la Región Metropolitana pertenecientes a 9 establecimientos de diversos tipos de dependencia y niveles socioeconómicos (NSE. Para ello se realizó un total de 33 observaciones en las 12 salas (promedio de duración de 197 minutos y se determinó en qué tipo de actividades se invertía el tiempo. Más de la mitad de la jornada en las salas de la muestra se dedicó a actividades no instruccionales, como juego inestructurado, colación (merienda y manejo conductual. El tiempo dedicado a actividades instruccionales no se distribuyó de acuerdo a los hallazgos actuales sobre las actividades más productivas para el desarrollo de los niños. Estos resultados fueron independientes del tipo de dependencia y NSE de los establecimientos.This study examined time management in 12 kindergarten classrooms from 9 Chilean schools with diverse sources of funding and socioeconomic status (SES. We conducted 33 observations in the 12 classrooms (average duration 197 minutes, and determined the amount of time devoted to different activities. More than half of the time in these classrooms was spent in non-instructional activities such as recess, snack, and managing the children's behavior. Additionally, the distribution of instructional time is not in accordance with current findings regarding the activities that are more fruitful for children's development. These results are independent of the schools' source of funding and SES.

  9. Quantification of the surface brackish water layer and frontal zones in southern Chilean fjords between Boca del Guafo (43°30‧S) and Estero Elefantes (46°30‧S)

    Science.gov (United States)

    Calvete, Carolina; Sobarzo, Marcus

    2011-03-01

    The southern Chilean region between the Boca del Guafo passage and Estero Elefantes contains one of the estuarine zones with the greatest freshwater influence on the planet. At the surface, plumes of freshwater from the fjord heads to their mouths, emptying into the Moraleda-Costa-Elefantes channel system and then the coastal ocean. The influence of this freshwater on the region's estuarine dynamics, coastal ecology, and biogeochemical processes has only recently begun to be elucidated. Using hydrographic data from the CIMAR-Fiordos cruises (1998-2001), this study quantifies the equivalent height of freshwater, emphasizing the role it plays in the potential energy anomaly and front locations, as well as its relationship with river discharges. Using a criterion of equivalent height of freshwater >15% (density Elefantes), with horizontal extensions on the order of 100 km. The limits of this layer tended to coincide with frontal zones having potential energy anomaly gradients >0.005 J/m 4. The frontal zones were located in the extreme southeast of Jacaf Channel, at the head of Ventisquero Sound, in the central part of the Puyuguapi and Moraleda channels, and at the head and mouth of Aysén Fjord. The equivalent height of freshwater and potential energy anomaly showed a good correlation with the accumulated (5-day) river discharges ( r2=0.87), which were greatest toward the fjord heads in spring. The brackish surface water had short residence times (3.5 days) in Aysen Fjord, unlike the deep layer, which other authors report to have a longer residence time (near 1 year).

  10. Determinación de hongos y bacterias termofílicas en heno y paja en criaderos de caballos criollos chilenos Fungi and thermophilic bacteria found in hay and straw from chilean horse breeding grounds

    Directory of Open Access Journals (Sweden)

    L. ZAROR

    1999-01-01

    Full Text Available La enfermedad pulmonar obstructiva crónica (COPD del equino es una alteración alérgica del tracto respiratorio bajo, con obstrucción de las vías aéreas y una bronquiolitis mucopurulenta, desencadenada por diversos alergenos. Es una patología de distribución mundial, geográficamente es más común en países templados donde los equinos se alimentan en base a heno y se mantienen estabulados por largos períodos. En Chile, la enfermedad ha sido descrita y se presenta especialmente en primavera. En el presente estudio se analizaron 99 muestras de paja, heno mixto y heno de alfalfa provenientes de 19 criaderos de caballos chilenos de las provincias de Valdivia y Osorno con el objeto de determinar la presencia de hongos y bacterias termofílicas. Los hongos más aislado fueron A. fumigatus. De las bacterias termofílicas se aisló escasamente Thermoactinomyces vulgaris y S. rectivirgulaChronic obstructive pulmonar disease (COPD of horses is an alergic alteration of lower respiratory tract with obstruction of aerovias and a mucupurolent bronchiolitis, developped by an amount of alergenics. It is disease of world wide distribution, being more common in warm countries where horses are feeded chiefly with hay & stay stabulated for long periods. In Chile it has been described being more ofter in springtime. In the present study 99 samples were analysed being of straw, mixed hay & alfalfa coming from 19 Chilean horse breeding grounds of the Valdivia & Osorno provinces in order to determinate the presence of thermophilic fungus & bacteria. The most isolated fungi were A. fumigatus, Mucor hiemalis & A. niger. Thermophilic bacteria were scarsely. Thermoactinomyces vulgaris & S. rectivirgula

  11. Caracterización Psicológica de un Grupo de Delincuentes Sexuales Chilenos a través del Test de Rorschach Psychological Profile of Chilean Sexual Offenders through the Rorschach Inkblot Test

    Directory of Open Access Journals (Sweden)

    Pamela Jiménez Etcheverría

    2009-01-01

    Full Text Available Es relevante profundizar en las motivaciones que determinan la conducta criminal e intentar una aproximación a la personalidad de quienes delinquen. Así, este estudio tuvo como objetivo determinar la posible existencia de características psicológicas comunes en un grupo de delincuentes sexuales. Con este propósito se utilizó el Test de Rorschach y, como criterio de comparación, datos de individuos con comisión de un delito de hurto y/o robo y datos estadísticos del Rorschach de referencia nacional. Se encontraron diferencias significativas con ambos grupos, lo que sugiere la existencia de un conjunto de características psicológicas en los delincuentes sexuales que les serían propias y les distinguirían tanto del resto de la población como del resto de los delincuentes comunes.It is relevant to deepen our understanding of the motivations of criminal behaviour and to try to understand such personalities. The objective of this study was to determine if there were underlying psychological characteristics common to sexual offenders. For this purpose, the Rorschach Inkblot test was used and, as comparative parameters, individuals with histories of theft and Chilean national Rorschach statistics. Significant differences were found in both groups, which suggest the existence of underlying common psychological traits in sexual offenders. These traits make them stand out from the general population and from other common delinquents.

  12. Impacto del aumento de escuelas de odontología en la productividad científica odontológica chilena Impact of the increase of dental schools on the chilean dental scientific productivity

    Directory of Open Access Journals (Sweden)

    S Uribe

    2012-04-01

    de la falta de investigación en las escuelas de Odontología no-CRUCh y si estas instituciones están cumpliendo la misión de las universidades de educar, investigar y servir a la comunidad.Objective: To describe the Chilean scientific productivity in the 2000-2011 time period, and to analyze the impact of the increasing number of superior education institutions offering the Dentistry Program. Material and Methods: Searches in the ISI database of the 2000-2011 time period were carried out, and publications with authors with Chilean correspondence addresses were tabulated. The journal, year, affiliate and impact were recorded. The educational institutions were divided in two: those belonging to the "Consejo de Rectores" (CRUCh (traditional institutions and those who don’t (private institutions. The databases of governmental funding agencies were consulted as well. Results: During the time span studied, 173 articles were published in journals of high impact (ISI. The institutions with the highest amount of publications were the traditional ones (U. Chile [57.8%], U. Concep [9.8%] and U. Valpo [8.1%]. The traditional universities represent 89.6% of the national scientific production; additionally, these correspond to the publications with the highest impact (10.5 cites average of impact per article for the CRUCh universities and 1.6 for the no-CRUCh. The CRUCh universities that have opened in this time period have begun to present scientific productivity. The no-Cruch universities (private represent the 6.9% of the national scientific productivity for the years 2000 to 2011. In a year, an average of 14 dentistry articles from Chilean authors are published in ISI journals, with a relative amount of: eight publications belonging to Universidad de Chile; one to Universidad de Concepcion, Valparaiso and La Frontera, respectively; and three divided among 11 universities. Conclusion: The increase in the number of students and number of institutions has had little impact

  13. Colour and Organization Studies

    DEFF Research Database (Denmark)

    Beyes, Timon

    2016-01-01

    of colour as aesthetic force and medium of transformation, the essay presents a montage of scenes that set up encounters with what colour does: how it affects organization, and how it is affected by organization; how it organizes what is given to perception, knowledge and organization itself, and how...

  14. Organizing design work

    DEFF Research Database (Denmark)

    Scheuer, John Damm

    2016-01-01

    The aim of this paper is to demonstrate the importance of the kind of understanding of organizing that is implied by design theories for project managers' understanding and organizing of design work. Five theories and their organizing consequences for project managers organizing of design work...... are analyzed. The paper contributes to design research and organization studies by putting the organizing of design projects on the research agenda. It also contributes by demonstrating the importance of being aware of the ontological and epistemological assumptions and organizing consequences of different...

  15. Organic food processing

    DEFF Research Database (Denmark)

    Kahl, Johannes; Alborzi, Farnaz; Beck, Alexander

    2014-01-01

    In 2007 EU Regulation (EC) 834/2007 introduced principles and criteria for organic food processing. These regulations have been analysed and discussed in several scientific publications and research project reports. Recently, organic food quality was described by principles, aspects and criteria....... These principles from organic agriculture were verified and adapted for organic food processing. Different levels for evaluation were suggested. In another document, underlying paradigms and consumer perception of organic food were reviewed against functional food, resulting in identifying integral product...... to evaluate processing methods. Therefore the goal of this paper is to describe and discuss the topic of organic food processing to make it operational. A conceptual background for