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Sample records for alto ribeira petar

  1. 222 Rn exposure assessment in the caves of Parque Estadual Turistico do Alto Ribeira (PETAR)

    International Nuclear Information System (INIS)

    Alberigi, Simone

    2006-01-01

    In the present work, radon concentrations in six caves of PETAR - Parque Estadual Turistico do Alto Ribeira (High Ribeira River Touristic State Park) were carried out with Makrofol E solid state nuclear track detectors (SSNTD) and used to assess the annual effective dose received by regional tour guides. The park has four visitation centers: Santana, Ouro Grosso, Caboclos e Casa de Pedra and receives nearly 40,000 people annually. The caves evaluated were Couto, Agua Suja, Laje Branca, Morro Preto and Santana, from Santana center and Alambari de Baixo from Ouro Grosso center, for being the most frequently visited caves. The exposure period of the SSNTD was, at least, three months, over a period of 26 months, from October 2003 to November 2005.The 222 Rn concentrations lay in a range from 153 Bq.m -3 to 6607 Bq.m -3 and we observed that, in general, for chilly weather, the radon levels decrease. The annual effective dose, considering the most realistic scenario, with geometric mean concentrations, an equilibrium factor of 0.5 and annual exposure time for each cave, varied from 0.2 mSv.a -1 for the Couto cave, strongly ventilated, to 4.0 mSv.a -1 for the Santana cave, the most frequently visited and no external communication. For the worst scenario, with arithmetic mean concentrations, equilibrium factor 1 and annual exposure time for all caves, the annual effective dose was 16.1 mSv.a -1 . All assessed effective doses received by the tour guides are bellow 20 mSv.a -1 suggested as an annual effective dose limit for occupational exposure by the International Commission of Radiological Protection (ICRP 60, 1990). (author)

  2. {sup 222} Rn exposure assessment in the caves of Parque Estadual Turistico do Alto Ribeira (PETAR); Avaliacao da exposicao ao {sup 222} Rn nas cavernas do Parque Estadual Turistico do Alto Ribeira (PETAR)

    Energy Technology Data Exchange (ETDEWEB)

    Alberigi, Simone

    2006-07-01

    In the present work, radon concentrations in six caves of PETAR - Parque Estadual Turistico do Alto Ribeira (High Ribeira River Touristic State Park) were carried out with Makrofol E solid state nuclear track detectors (SSNTD) and used to assess the annual effective dose received by regional tour guides. The park has four visitation centers: Santana, Ouro Grosso, Caboclos e Casa de Pedra and receives nearly 40,000 people annually. The caves evaluated were Couto, Agua Suja, Laje Branca, Morro Preto and Santana, from Santana center and Alambari de Baixo from Ouro Grosso center, for being the most frequently visited caves. The exposure period of the SSNTD was, at least, three months, over a period of 26 months, from October 2003 to November 2005.The {sup 222}Rn concentrations lay in a range from 153 Bq.m{sup -3} to 6607 Bq.m{sup -3} and we observed that, in general, for chilly weather, the radon levels decrease. The annual effective dose, considering the most realistic scenario, with geometric mean concentrations, an equilibrium factor of 0.5 and annual exposure time for each cave, varied from 0.2 mSv.a{sup -1} for the Couto cave, strongly ventilated, to 4.0 mSv.a{sup -1} for the Santana cave, the most frequently visited and no external communication. For the worst scenario, with arithmetic mean concentrations, equilibrium factor 1 and annual exposure time for all caves, the annual effective dose was 16.1 mSv.a{sup -1}. All assessed effective doses received by the tour guides are bellow 20 mSv.a{sup -1} suggested as an annual effective dose limit for occupational exposure by the International Commission of Radiological Protection (ICRP 60, 1990). (author)

  3. Phlebotomines (Diptera, Psychodidae in the Speleological Province of the Ribeira Valley: 3. Serra district - area of hostels for tourists who visit the Parque Estadual do Alto Ribeira (PETAR, state of São Paulo, Brazil

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    Eunice Aparecida Bianchi Galati

    2010-01-01

    Full Text Available Phlebotomines (Diptera, Psychodidae in the Speleological Province of the Ribeira Valley: 3. Area of hostels for tourists who visit the Parque Estadual do Alto Ribeira (PETAR, state of São Paulo, Brazil. The study characterizes some ecological aspects of the phlebotomine fauna in an endemic area of cutaneous leishmaniasis (CL situated in the Serra district, Iporanga municipality where the hostels for tourists visiting the PETAR are located. Captures were undertaken on a smallholding and a small farm situated near the hostels, monthly between January/2001 and December/2003 with automatic light traps (ALT in pigsty, hen-house and veranda of a domicile at the two sites, and in peridomicile of the small farm also with black/white Shannon traps. With the ALT a total of 87,224 phlebotomines representing 19 species and also two hybrids of Nyssomyia intermedia (Lutz & Neiva and Nyssomyia neivai (Pinto and two anomalous specimens were captured. The standardized index species abundance was for Ny. intermedia = 1.0 and Ny. neivai = 0.935. The highest frequencies of the smallholding occurred in the pigsty, the Williams' mean/capture for Ny. intermedia being 63.7 specimens and for Ny. neivai 29.2, and on the small farm, in the hen-house, Ny. intermedia 402.6 and Ny. neivai 116.2. A total of 863 phlebotomines (Ny. intermedia: 75.4%; Ny. neivai: 24.3% were captured with black/white Shannon traps; females of both species being predominant in the white trap. The high frequencies of Ny. intermedia and Ny. neivai, both implicated in CL transmission, indicate the areas presenting risk of the disease.

  4. Energy and quality of life: a case study in HPP Tijuco Alto, Ribeira, SP; Energia e qualidade de vida: estudo de caso da Uhe Tijuco Alto no Municipio de Ribeira, SP

    Energy Technology Data Exchange (ETDEWEB)

    Conceicao, Andre Luiz da [Universidade Estadual de Campinas (FEM/UNICAMP), SP (BRazil). Fac. de Engenharia Mecanica], email: conceicao.andreluiz@yahoo.com.br; Seixas, Sonia Regina da Cal [Universidade Estadual de Campinas (NEPAM/UNICAMP), SP (BRazil). Nucleo de Estudos e Pesquisas Ambientais], email: srcal@unicamp.br

    2010-07-01

    This paper deals with a critical and reflexive that the issue involving the possibility of construction and operation of Hydroelectric Power (HEP) Tijuco Alto, the upper course of the Ribeira Valley between Sao Paulo and Parana, in the Vale do Ribeira. This project will directly affect the towns of Ribeira-SP, Itapirapua Paulista-SP, Cerro Azul-PR, Dr. Ulysses-PR and Adrianopolis-PR. Thus, we defined the main objective of the research examines the quality of life in the city of Ribeira-SP, at the possibility of deployment of the dam. Thus, field research was conducted in the city and interviews with residents, where it was possible to observe, among other things the precarious economic conditions, social, urban and cultural community. Another aspect noted was the fact that most respondents to position themselves for the construction of the HPP Tijuco Alto, citing primarily the need for local development and increased job opportunities. Those opposing the plant, highlighted environmental issues, mainly, reasons related to loss of peace and security site. Regardless of those who are for or against, a technical opinion issued by IBAMA in 2008 points to the likely deployment of the HPP Tijuco Alto. (author)

  5. Determination of uranium in Toxodon Platensis' teeth from Alto Ribeira region in Sao Paulo State for isotope dating

    International Nuclear Information System (INIS)

    Figueiredo, Ana M.G.; Saiki, Mitiko; Sarkis, Jorge E.S.; Kakazu, Mauricio H.; Karmann, Ivo

    2000-01-01

    In the present work, the concentration of uranium in dentine and dental enamel of a pre-molar of Toxodon platensis (kind of herbivorous) from South America Quaternary, present in the region of Alto Ribeira, Sao Paulo, was determined, in order to date this fossil by using the ESR method (Electron Spin Resonance). The analytical techniques Epithermal Neutron Activation Analysis and High Resolution Inductively Coupled Plasma Mass Spectrometry were employed. The results obtained by using the two cited analytical techniques were in good agreement. These results, together with the data of total dose of deposed ionizing radiation and of the rate dose, allowed to find a ESR age of (6,7 +/- 1,3) Ka for the dentine, and of (5,0 +/- 1,6 Ka) for the dental enamel. Considering an average age of 6 Ka, this date corresponds to the Low to Medium Holocene, which is an unprecedented datum for this species in the southeastern region of Brazil. (author)

  6. The geomechanical characterization of the rocky mass foundation of the Tijuco Alto hydroelectric power plant, Ribeira River, Sao Paulo/Parana States, Brazil; Caracterizacao geomecanica do Macico de Fundacao da UHE Tijuco Alto (Rio Ribeira - SP/PR)

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    Figueiredo, Amarilis Lucia Casteli de

    1996-07-01

    This work has as its main objective the geomechanical characterization on the future rocky mass foundation of the Tijuco Alto dam, sited at the Ribeira river, in the cities of Ribeirao, Sao Paulo state and Adrianopolis, Parana state, Brazil, owned by the Companhia Brasileira de Aluminio (Brazilian company of Aluminium). To reach that target, field studies were made to qualify the geotechnical parameters of the rocky mass, in the axis area open galleries. It was also used in situ deformability and stress test results performed in those galleries, that were reinterpreted for a better adaptation of the mass values. The knowledge of the mass inherent characteristics together with the laboratories test results, allowed for the geomechanical classification applications in several different gallery sectors. The geomechanical data obtained allowed through mathematical expressions, to reach the rocky mass values correlations of interest to the work (deformability and strength), that could be compared to the in situ test results. That analysis permitted, besides the classification critical system evaluation, the geomechanical characterization of the rocky mass, focusing its ability to the dam arch construction. (author)

  7. The Alto Ribeira magmatic arc (Parana State-Southern Brazil): Geochemical and isotopic evidence of magmatic focus migration and its tectonic implications

    International Nuclear Information System (INIS)

    Prazeres Fihlo, H.J.; Baei, M.A.S.; Harara, O.M.M.; Passarelli, C.R.; Siga Jr, O; Reis Neto, J.M; Sato, K

    2001-01-01

    The present location of the geological units which comprise the Precambrian of the south-southeastern part of the Ribeira fold belt in Parana State, Brazil, is the result of a series of superposed tectono-metamorphic events. During this evolution, and especially at the end of the Neoproterozoic, between 640 and 550 Ma, an important crustal accretion event within the Brasiliano Megacycle was responsible for the generation of the Alto Ribeira magmatic arc (ARMA). This arc is now represented by a large volume of granitic rocks amongst which the Cunhaporanga (CPB) and Tres Corregos (TCB) granitic batholiths stand out. The SSE part of the Ribeira belt forms an long, NE strip with a mainly NE trend, formed by deformed middle to upper crustal rocks, metamorphosed in greenschist to amphibolite facies (Basei et.al.1992; Fiori, 1993; Hackspacher et.al. 1997; Campanha and Sadowski 1999). These rocks are intruded by the Neoproterozoic CPB, TCB and the Agudos Grandes batholith, and many granite stocks. The CPB and TCB are elongated bodies with NE-SW major axes which occur north and south, respectively, of the Itaiacoca metavolcano-sedimentary sequence. Together, they occupy about 6,500 km 2 . The southeastern contact between the CPB and the Itaiacoca country rocks is intrusive, while the northwestern contact of the BCT with this group is tectonic, represented by the Itapirapua shear zone. Its contact with rocks of the Agua Clara Formation of the Acungui Group is intrusive. The mineral assemblages in the rocks of the two main batholiths are typically calc-alkaline. The CPB is more homogeneous, being mainly composed of porphyritic to inequigranular, isotropic monzogranite which are accompanied by rare granodiorite. The TCB is more heterogeneous, and includes undeformed or deformed quartz monzonite, granodiorite and monzogranite, as well as rare tonalite and syenogranite. The rocks of the CPB (with 65 - 73% SiO 2 ) and the TCB (60-76% SiO 2 ) are meta- to weakly per-aluminous in

  8. Speleoclimate dynamics in Santana Cave (PETAR, São Paulo State, Brazil: general characterization and implications for tourist management

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    Heros Augusto Santos Lobo

    2015-01-01

    Full Text Available Show caves provide tourists with the opportunity to have close contact with natural underground spaces. However, visitation to these places also creates a need for management measures, mainly the definition of tourist carrying capacity. The present work describes the results of climate monitoring and atmospheric profiling performed in Santana Cave (Alto Ribeira State and Tourist Park – PETAR, Brazil between 2008 and 2011. Based on the results, distinct preliminary zones with different levels of thermal variation were identified, which classify Santana Cave as a warm trap. Two critical points along the tourist route (Cristo and Encontro Halls were identified where the temperature of the locality increased by 1.3 °C when tourists were present. Air flow from the inner cave to the outside occurs during the austral summer, and the opposite flow occurs when the outside environment is colder than the air inside the cave during the austral winter. The temperature was used to establish thresholds to the tourist carrying capacity by computing the recovery time of the atmospheric conditions after the changes caused by the presence of tourists. This method suggests a maximum limit of approximately 350 visits per day to Santana Cave. The conclusion of the study is that Santana Cave has an atmosphere that is highly connected with the outside; daily variations in temperature and, to a lesser extent, in the relative humidity occur throughout the entire studied area of the cave. Therefore, the tourist carrying capacity in Santana Cave can be flexible and can be implemented based on the climate seasonality, the tourism demand and other management strategies.

  9. 14 C dating and isotopic composition of lacustrine sediment in the Vale do Ribeira, south-western Sao Paulo State

    International Nuclear Information System (INIS)

    Saia, Soraya E.M.G.; Pessenda, Luiz C.R.; Gouveia, Susy E.M.; Vidotto, Elaine; Ledru, Marie-Pierre; Karmann, Ivo; Amaral, Paula G.; Bendassoli, Jose A.

    2005-01-01

    This work is part of a multi and interdisciplinary study involving paleoenvironmental records based on systematic and joint actions of pollen, isotopic composition ( 12 C, 13 C and 14 N, 15 N) and 14 C dating of lacustrine sediment. Samplings have been made in the Lagoa Grande located at Parque Estadual de Turismo do Alto Ribeira - PETAR, in the Vale do Ribeira, south-western Sao Paulo state. This integration must improve significantly the studies of vegetation and climate changes that occurred during the Late Pleistocene in the southeastern region of Brazil. The δ 13 C results of lacustrine sediment presented values from -23 to -30 per mille with isotopic tendencies of enrichment-depletion in the whole profile. The highest values of total organic carbon (TOC) and C/N associated with depleted δ 13 C values, were linked to organic matter from C 3 land plant and interpreted as the presence of denser arboreal vegetation around the lake. The smallest values of TOC and C/N associated with enriched δ 13 C values were linked to phytoplanktonic influence and/or the presence of less dense arboreal vegetation around the lake. These fluctuations reflect changes in quality and quantity of sedimentary organic matter linked to vegetation changes and the production of organic matter within the sedimentation basin connected with lake level variations. The combination of C/N and δ 13 C data on a cross-plot diagram shows a general distribution of points lying close to the planktonic (algal) organic matter. However, the scattering of certain points indicates a slight contribution from C 3 land plants. The variations in arboreal pollen (%AP) along the core are characterized by AP values between 40 and 80%. The 14C dating indicated Modern age at the shallow horizons to 1,030 years BP for the deeper horizon. (author)

  10. Assessment of natural radioactivity levels in waters from the higher Ribeira Valley to the southern Sao Paulo state coastal plain; Levantamento dos niveis de radioatividade natural em aguas do alto Vale da Ribeira a planicie costeira do litoral sul do estado de Sao Paulo

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    Jesus, Sueli Carvalho de

    2010-07-01

    freshwater/saltwater mixing). Thus, the Ra isotopes provide fundamental information on the interaction of sediments, groundwater and estuarine waters. In this project, the distribution of natural Ra isotopes was studied in ix surface, groundwater and estuarine water samples collected from dry and wet seasons (2009 - 2010) campaigns performed in Ribeira Valley, Southern Sao Paulo State. The inventory allowed the application of Ra isotopes as tracers of fluvial and groundwater discharges to the Cananeia-Iguape estuarine complex. The exchange of groundwater/surface water in Ribeira do Iguape River basin and related fluxes of several constituents for the Cananeia-Iguape estuarine complex mass balance is still not very well known. The results obtained in this research work evidenced that there is a prevalence of {sup 228}Ra isotope in all the set of samples analyzed. However, the activity concentrations of Ra isotopes determined from Higher Ribeira Valley through the Southern Coastal Plain of Sao Paulo are representative of natural background levels, showing low or minimal human intervention. In the set of samples collected along Ribeira do Iguape River, Cananeia and Iguape outlets, the higher concentrations of Ra were observed in bottom waters, indicating the diffusion of {sup 228}Ra from sediments recently deposited as a potential source of the increased concentrations of this isotope when compared with others. The activity concentrations of the short-lived Ra isotopes were negligible, lower than the limit of the detection. Fluxes of Ra for Cananeia outlet are strongly influenced by tidal oscillations, which modulate the increase and decrease of Ra concentrations in response of the respective increase and decrease of waters salinity. In Iguape outlet and in hydrochemical stations performed along Ribeira do Iguape River it was observed a linear relationship between the amount of suspended matter and the increase of {sup 228}Ra activity concentration. When we evaluate

  11. Sr and Nd isotopic signature of the high-K calc-alkaline magmatism of the central Ribeira belt: the Sao Pedro Granite in Lumiar, RJ; Assinatura isotopica de Sr e Nd do magmatismo calcio-alcalino de alto-K na Faixa Ribeira central: o exemplo do Granito Sao Pedro em Lumiar, RJ

    Energy Technology Data Exchange (ETDEWEB)

    Mendes, Julio Cezar; Medeiros, Silvia Regina de; Chaves, Eduardo Amorim, E-mail: julio@geologia.ufrj.br, E-mail: silvia@geologia.ufrj.br, E-mail: edupc2@yahoo.com.br [Departamento de Geologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro (RJ) (Brazil)

    2011-09-15

    In the central-northern Ribeira belt there are many granitic to granodioritic bodies showing varied shape and size, characterizing a late- to post-collisional Ca-alkaline, cordilleran I-type province. The Sao Pedro Granite occurs in the mountain region of Rio de Janeiro State as small post-collisional bodies. It presents isotropic fabric, equigranular to seriate inequigranular texture, as well as local concentration of allanite, which gives discrete composition and texture variation to the rock. The granite has a high-K calcalkaline to alkali-calcic character and weakly peraluminous nature. Despite its short geochemical variation, high Ba, Zr and Th contents besides low concentrations of MgO and CaO are noticeable. High REE contents are associated with fractionated REE patterns showing strong negative Eu anomalies. A crustal origin for the granite can be assumed by its very negative and positive .Nd and .Sr values, respectively, as well as by 87Sr/86Sr initial ratios ranging from 0,718 to 0,740. TDM ages point to paleoproterozoic source, which agrees with geological time of intensive crust generation. (author)

  12. On the influence of environmental factors on radon levels in caves of Ribeira valley state parks, SP and evaluation of radioactive equilibrium and equilibrium factor between radon and its progeny; Sobre a influencia de fatores ambientais nos niveis de radonio em cavernas dos parques estaduais do vale do Ribeira, SP e avaliacao do equilibrio radioativo e fator de equilibrio entre radonio e seus descendentes

    Energy Technology Data Exchange (ETDEWEB)

    Alberigi, Simone

    2011-07-01

    In the present study it was carried out the monitoring of radon in caves distributed among three state parks of Sao Paulo. The radon concentration were determinate in Morro Preto and Santana caves, located at PETAR - Parque Estadual Turistico do Alto Ribeira (High Ribeira River Tourist State Park), Diabo cave, situated in PEJ - Parque Estadual de Jacupiranga (Jacupiranga State Park) and Colorida cave located in PEI - Parque Estadual Intervales (Intervales State Park PEI). The monitoring covered measurements between April 2009 and June 2010. Radon concentrations were carried out by using the technique of passive detection with CR-39 solid state nuclear track detectors and NRPB diffusion chambers. The detectors were exposed in periods ranging from 30 to 150 days. Radon concentrations varied from 132 Bq/m{sup 3} to 9456 Bq/m{sup 3}. The values of radon concentrations were analyzed together with information about rainfall and internal and external temperature values of the Santana cave environment and regional literature values for a possible relationship between radon variations and weather information. Both the determinations of {sup 22}'6Ra in water samples collected in some caves and rivers and radon emanation from a stalactite collected at Santana cave allowed to verify that the radon in the caves comes from the walls rocks. The verification of the radioactive equilibrium between {sup 222}Rn, {sup 218}Po and '2{sup 14}Po in the exposed detectors was prejudiced by the high tracks densities, committing the methodology effectiveness. The annual effective dose was calculated for three values obtained from the literature for the equilibrium factor. Considering the most realistic scenario, with equilibrium factor of 0.5 and 52 working weeks, the annual effective dose was 5.1 mSv/y. Concerning the worst scenario, which simulates an extreme case, adopting an equilibrium factor equal to 1 and 52 weeks of work per year, the annual effective dose is 10.2 m

  13. On the influence of environmental factors on radon levels in caves of Ribeira valley state parks, SP and evaluation of radioactive equilibrium and equilibrium factor between radon and its progeny

    International Nuclear Information System (INIS)

    Alberigi, Simone

    2011-01-01

    In the present study it was carried out the monitoring of radon in caves distributed among three state parks of Sao Paulo. The radon concentration were determinate in Morro Preto and Santana caves, located at PETAR - Parque Estadual Turistico do Alto Ribeira (High Ribeira River Tourist State Park), Diabo cave, situated in PEJ - Parque Estadual de Jacupiranga (Jacupiranga State Park) and Colorida cave located in PEI - Parque Estadual Intervales (Intervales State Park PEI). The monitoring covered measurements between April 2009 and June 2010. Radon concentrations were carried out by using the technique of passive detection with CR-39 solid state nuclear track detectors and NRPB diffusion chambers. The detectors were exposed in periods ranging from 30 to 150 days. Radon concentrations varied from 132 Bq/m 3 to 9456 Bq/m 3 . The values of radon concentrations were analyzed together with information about rainfall and internal and external temperature values of the Santana cave environment and regional literature values for a possible relationship between radon variations and weather information. Both the determinations of 22 '6Ra in water samples collected in some caves and rivers and radon emanation from a stalactite collected at Santana cave allowed to verify that the radon in the caves comes from the walls rocks. The verification of the radioactive equilibrium between 222 Rn, 218 Po and '2 14 Po in the exposed detectors was prejudiced by the high tracks densities, committing the methodology effectiveness. The annual effective dose was calculated for three values obtained from the literature for the equilibrium factor. Considering the most realistic scenario, with equilibrium factor of 0.5 and 52 working weeks, the annual effective dose was 5.1 mSv/y. Concerning the worst scenario, which simulates an extreme case, adopting an equilibrium factor equal to 1 and 52 weeks of work per year, the annual effective dose is 10.2 mSv/y. Also with information received from a

  14. A talk with academician SASA Petar Vlahović on his expert stay in PR China

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    Vesna Vučinić-Nešković

    2016-02-01

    Full Text Available Academician Petar Vlahović, a retired professor at the University of Belgrade, Faculty of Philosophy is the first, and up to now, only Serbian ethnologist/anthropologist who underwent professional development in the People’s Republic of China. In the period between November 1955 and December 1856 he stayed at the University of Beijing. This interview is dedicated to his stay in China as well as to the ways in which this experience was meaningful to his further development as a teacher and researcher in ethnology and anthropology at the University of Belgrade. The text is based on three interviews with academician Vlahović conducted in November and December 2012 and March 2014.

  15. Chemical characterization of bottom sediments from Ribeira de Iguape river, Parana and Sao Paulo states, Brazil, by instrumental neutron activation analysis

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    Castro, Francisco J.V.; Quinaglia, Gilson A., E-mail: fjcastro@sp.gov.br, E-mail: gquinaglia@sp.gov.br [Companhia Ambiental do Estado de Sao Paulo(ELTA/CETESB), Sao Paulo, SP (Brazil). Setor de Analises Toxicologicas; Favaro, Deborah I.T., E-mail: defavaro@ipen.br [Instituto de Pesquisas Energeticas e Nucleares (LAN-CRPq/IPEN/CNEN-SP), Sao Paulo, SP (Brazil). Lab. por Ativacao Neutronica

    2013-07-01

    During several decades the Alto Vale of Ribeira region (SP-PR) suffered under lead mining activities in the region. Although in 1996 all such activities ceased, the mining activities left behind a huge amount of environmental liabilities mainly in the hydrographic basin of Ribeira de Iguape river. In the present study the chemical characterization of bottom sediments was undertaken and the concentration of the major (Ca, Fe, K and Na), trace (As, Ba, Br, Co, Cs, Hf, Rb, Sb, Ta, Th, U, Zn) and rare earth elements (La, Ce, Eu, Nd, Sm, Lu, Tb, Yb and Sc) by instrumental neutron activation analysis (INAA) were determined. The validation of the analytical methodology was performed by means of certified reference materials analyses and Z-score criterion was used. Eight points were sampled at the Ribeira de Iguape river and its majorities from Adrianopolis (Pr) (site 01) to Registro (SP) (site 08). Granulometric analyses and textural classification were undertaken in the sediment samples. The results obtained by using INAA were compared to UCC (Upper Continental Crust) reference values. The environmental tools of Enrichment Factor (EF) and Geochemical Index (GI) were used to assess the degree of metal contamination in the sediment samples. Samples from site 5 (Betari river - Iporanga, SP) presented high values for As, Sb and Zn and greater IGeo (3.1 - 5.5) and EF (>7.0) values for these elements classifying this point as highly polluted for these elements as well as a strong anthropogenic contribution. Site 7 (Ribeira river - Eldorado, SP) was considered moderately polluted for As, Br and Sb. The high concentration levels of some metals and metalloids reflect the contribution of mining activities from the past in the region. From the results it can be seen that although mining activities no longer exist since 1996, the deleterious effects in the environment are still present and strong. (author)

  16. Chemical characterization of bottom sediments from Ribeira de Iguape river, Parana and Sao Paulo states, Brazil, by instrumental neutron activation analysis

    International Nuclear Information System (INIS)

    Castro, Francisco J.V.; Quinaglia, Gilson A.; Favaro, Deborah I.T.

    2013-01-01

    During several decades the Alto Vale of Ribeira region (SP-PR) suffered under lead mining activities in the region. Although in 1996 all such activities ceased, the mining activities left behind a huge amount of environmental liabilities mainly in the hydrographic basin of Ribeira de Iguape river. In the present study the chemical characterization of bottom sediments was undertaken and the concentration of the major (Ca, Fe, K and Na), trace (As, Ba, Br, Co, Cs, Hf, Rb, Sb, Ta, Th, U, Zn) and rare earth elements (La, Ce, Eu, Nd, Sm, Lu, Tb, Yb and Sc) by instrumental neutron activation analysis (INAA) were determined. The validation of the analytical methodology was performed by means of certified reference materials analyses and Z-score criterion was used. Eight points were sampled at the Ribeira de Iguape river and its majorities from Adrianopolis (Pr) (site 01) to Registro (SP) (site 08). Granulometric analyses and textural classification were undertaken in the sediment samples. The results obtained by using INAA were compared to UCC (Upper Continental Crust) reference values. The environmental tools of Enrichment Factor (EF) and Geochemical Index (GI) were used to assess the degree of metal contamination in the sediment samples. Samples from site 5 (Betari river - Iporanga, SP) presented high values for As, Sb and Zn and greater IGeo (3.1 - 5.5) and EF (>7.0) values for these elements classifying this point as highly polluted for these elements as well as a strong anthropogenic contribution. Site 7 (Ribeira river - Eldorado, SP) was considered moderately polluted for As, Br and Sb. The high concentration levels of some metals and metalloids reflect the contribution of mining activities from the past in the region. From the results it can be seen that although mining activities no longer exist since 1996, the deleterious effects in the environment are still present and strong. (author)

  17. THE TRAGEDV OF PETAR ZRINSKI AND FRANJO KRSTO FRANKOPAN IN THE LIGHT OF POLITICS HABSBURG COURT AGAINST CROATIA

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    Lujo Margetić

    1991-01-01

    Full Text Available The article deals with the circumstances which brought about the conspiracy of Petar Zrinski and Franjo Krsto Frankopan. The Turkish agression towards the west was much weaker in 17lh century, while Austria paid much attention to the problems of Western Europe. Thus, the role of Croatia was to defend the border-line area, which was continually attacked and plundered. Even when Croatian nobles were successful, Austria did not want to make a counter-attack. The discontent of Croatian and Hungarian nobles was, on account of that, very great. However, when the first secret plans for the revolt against such Austrian politics were made, the brother of Petar Zrinski, Nikola Zrinski, who was the only one with the authority and ability to lead a successful action, was, allegedly, killed accidentally. The conspiracy continued, but with such a number of political and diplomatic mistakes that it ended tragically. Petar Zrinski and Krsto Frankopan were sentenced to death and executed on 30th April 1671.

  18. Plan de emergencia de la presa de La Ribeira

    OpenAIRE

    Bernabé López, Cristina

    2010-01-01

    El presente documento constituye el Plan de Emergencia de la Presa de La Ribeira. Ha sido elaborado por Cristina Bernabé López, Ingeniera Técnica de Obras Públicas, convocada por el titular de la presa, para dar cumplimiento a lo establecido al respecto en la Directriz Básica de Planificación de Protección Civil ante el riesgo de inundaciones, aprobada por acuerdo de Consejo de Ministros de 31 de enero de 1995, publicado en el BOE de 14 de febrero del mismo año. Contiene las...

  19. Ribeira do Iguape Basin Morphogenesis and the Environmental Systems

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    Jurandyr Luciano Sanches Ross

    2002-12-01

    Full Text Available O relevo da bacia do rio Ribeira do Iguape, apresenta macro-compartimentos geomorfológicos muito distintos, que correspondem aos morros da superfície de cimeira regional, os morros fortemente dissecados dos níveis intermediários da serra do Mar, as terras da depressão tectônica do baixo Ribeira e a planície costeira marinha e fluvial. A gênese das formas desse relevo sofreu influências da tectônica pré-Cambriana, nas fases do ciclo brasiliano, com dobramentos acompanhados de metamorfismos regionais, magmatismos subjacentes sintectônicos, complexidade de falhamentos e fraturas, fases de reativação tectônica meso-cenozoica, compartilhado com as atividades climáticas pretéritas e atuais, bem como com as oceânicas. A conjugação de processos tectônicos e os mecânicos e químicos das águas ao longo de milhões de anos, definem as morfologias atuais do relevo e dos sistemas ambientais desta bacia

  20. Evaluation of baseline ground-water conditions in the Mosteiros, Ribeira Paul, and Ribeira Fajã Basins, Republic of Cape Verde, West Africa, 2005-06

    Science.gov (United States)

    Heilweil, Victor M.; Earle, John D.; Cederberg, Jay R.; Messer, Mickey M.; Jorgensen, Brent E.; Verstraeten, Ingrid M.; Moura, Miguel A.; Querido, Arrigo; Spencer,; Osorio, Tatiana

    2006-01-01

    This report documents current (2005-06) baseline ground-water conditions in three basins within the West African Republic of Cape Verde (Mosteiros on Fogo, Ribeira Paul on Santo Antão, and Ribeira Fajã on São Nicolau) based on existing data and additional data collected during this study. Ground-water conditions (indicators) include ground-water levels, ground-water recharge altitude, ground-water discharge amounts, ground-water age (residence time), and ground-water quality. These indicators are needed to evaluate (1) long-term changes in ground-water resources or water quality caused by planned ground-water development associated with agricultural projects in these basins, and (2) the feasibility of artificial recharge as a mitigation strategy to offset the potentially declining water levels associated with increased ground-water development.Ground-water levels in all three basins vary from less than a few meters to more than 170 meters below land surface. Continuous recorder and electric tape measurements at three monitoring wells (one per basin) showed variations between August 2005 and June 2006 of as much as 1.8 meters. Few historical water-level data were available for the Mosteiros or Ribeira Paul Basins. Historical records from Ribeira Fajã indicate very large ground-water declines during the 1980s and early 1990s, associated with dewatering of the Galleria Fajã tunnel. More-recent data indicate that ground-water levels in Ribeira Fajã have reached a new equilibrium, remaining fairly constant since the late 1990s.Because of the scarcity of observation wells within each basin, water-level data were combined with other techniques to evaluate ground-water conditions. These techniques include the quantification of ground-water discharge (well withdrawals, spring discharge, seepage to springs, and gallery drainage), field water-quality measurements, and the use of environmental tracers to evaluate sources of aquifer recharge, flow paths, and ground

  1. Certain characteristics of the Serbian dialects from Kosovo and Metohija in Petar D. Petrović's short stories

    Directory of Open Access Journals (Sweden)

    Jašović Golub M.

    2013-01-01

    Full Text Available Petar D. Petrović, a teacher, was born in a prominent mercantile family in Peć in 1881. He had graduated from theology school in Prizren and worked as a teacher in Gnjilane, Priština, Prizren and Peć. He used to send short stories and notes concerning life and work of Serbs in the area of today’s Kosovo and Metohija to a various newspapers and magazines which were printed from Constantinople to Belgrade and Novi Sad. In the magazine Zastava, Svetozar Miletić’s journal of the National Radical Party in Novi Sad, he has published 24 short stories between 1906 and 1912 and one short story in the illustrated magazine ,,Graničar". The subject of our research here are speech properties of Prizren - South Moravian and Kosovo - Resavian dialects which are registered in characters’ speech described in Petrovic’s prose originating from different regions: Kosovo Pomoravian, Priština, from Prizren and its surroundings and from northern Metohija. We have also analyzed dialecticism recorded in the speech of the writer.

  2. Altos penachos de escarcha

    OpenAIRE

    Josa, Lola; Lambea, Mariano

    2008-01-01

    El documento contiene la composición titulada “Altos penachos de escarcha”, perteneciente al Manojuelo Poético-Musical de Nueva York, recopilación manuscrita de piezas poético-musicales de los siglos XVII y XVIII que se conserva en la biblioteca de The Hispanic Society of America (New York) bajo la signatura Ms. HC. 380/821a. Se ofrece la partitura con la transcripción musical a notación moderna, la edición anotada del poema y todos aquellos datos que ha sido posible averiguar sobre cada piez...

  3. y El Alto, Bolivia

    Directory of Open Access Journals (Sweden)

    León Darío Parra Bernal

    2013-01-01

    Full Text Available En el presente caso de estudio se analiza la empresarialidad informal como un reto de política pública y económica. Para ello, se efectuaron 20 entrevistas en profundidad a microempresarios y comerciantes del sector informal en las ciudades de La Paz y El Alto, en Bolivia en 2010, y a 3 funcionarios públicos de instituciones de apoyo al fomento empresarial en el mismo país. La principal reflexión giró en torno al establecimiento de que los empresarios informales poseen un elevado nivel de influencia en la efectividad de las políticas públicas implementadas para su sector, así como en los mecanismos que se han utilizado en Bolivia para incluirlos en el proceso.

  4. Technology management for the installation of a food irradiator in the Ribeira Valley

    International Nuclear Information System (INIS)

    Ghobril, Carlos Nabil

    2008-01-01

    This thesis presents a research focused on technology management applied to technical and economic viability study for the installation of a multi propose irradiator in Vale do Ribeira. First, the work presents the regional characteristics that shows Vale do Ribeira as the less economically developed region of Sao Paulo state. On the other side, it shows the emergence of irradiation techniques applied to the food industry, with accepted and recommended results by international authorities. Technology management, from the conceptual basis here presented, links regional environment reality to available technical knowledge, in search of regional development. The methodology was composed by the use of bibliographical, qualitative and quantitative research, and the analysis was supported by the use of statistical techniques and economic viability analysis. The present research concludes that there is technical and economic viability of the venture here analyzed, although it should be recommended more studies about banana irradiation and about Brazilian consumer acceptance to irradiated food products. (author)

  5. The Ilha Anchieta Quartz Monzonite: the southernmost expression of ca. 500 Ma post-collisional magmatism in the Ribeira Belt

    Directory of Open Access Journals (Sweden)

    José M. Azevedo Sobrinho

    2011-09-01

    lcali-cálcico, metaluminoso emagnesiano (mg# ~30, conteúdos moderados de Sr (300-400 ppm e Ba (~ 1500 ppm e conteúdos relativamente altos de HFSE (Nb = 40 ppm; Zr = 550-700 ppm. Os charnockitos encaixantes mais antigos são mais félsicos (SiO2 = 71-78%, ferrosos (mg# = 12-16, e têm teores muito baixos de Sr (13-80 ppm, resultando em razões Ba/Sr notavelmente mais altas que o QMIA (10 versus 4. Datação de zircão do QMIA por LA-MC-ICPMS indicou 499.7 ± 5.9 Ma, a idade magmática mais jovem identificada até o momento no embasamento cristalino do Estado de São Paulo, e indica que o plúton marca a extensão meridional do magmatismo pós-colisional tardio ("G5" do Cinturão Ribeira.

  6. Caracterização da piscicultura na região do Vale do Ribeira - SP Characterization of fish farming in the Ribeira Valley region - SP

    Directory of Open Access Journals (Sweden)

    Daniela Castellani

    2005-02-01

    Full Text Available Este trabalho buscou caracterizar a piscicultura na Região do Vale do Ribeira quanto aos sistemas de manejo. Estudaram-se quarenta e duas pisciculturas sendo que, destas, 36 praticam o sistema semi-intensivo e seis o sistema intensivo, com os seguintes objetivos: engorda de peixes, produção de alevinos e pesque-pagues. Foram listadas 41 espécies de peixes cultivadas. Apenas 6 espécies são nativas da Bacia do Rio Ribeira de Iguape: lambari (Astyanax sp Linneaus, 1758, traíra (Hoplias malabaricus Bloch, 1794, robalo (Centropomus ssp Cuvier e Valenciennes, 1928, jundiá (Rhamdia quelen Quoy e Gaimard, 1824, cascudo (Hypostomus sp Marschall, 1873 e cará (Geophagus brasiliensis Quoy e Gaimard, 1824. Em 95% das pisciculturas foram verificadas fugas de peixes exóticos e alóctones dos cultivos. A tilápia nilótica (Oreochromis niloticus Linneaus, 1758 foi a espécie mais freqüente em escapes, e também é a segunda mais cultivada pelos piscicultores, perdendo somente para o pacu (Piaractus mesopotamicus Halmberg, 1887. Foi possível verificar mediante o cálculo da conversão alimentar, que há um desperdício anual de cerca de 32% da ração utilizada nos cultivos pesquisados. A piscicultura encontra-se em plena expansão nesta região, e já representa a atividade agropecuária mais importante após a bananicultura.The aim of this work was to characterize the fish farming in the Ribeira de Iguape Basin, southern São Paulo State (Brazil, in relation to the management systems. Forty two farms were studied. A semi-intensive system is used by 36 farmers, while an intensive system is used only by 6 studied farmers. Their objectives were raising fish, juvenile fish production and sportive fishery. Forty one fish species were found to be cultivated, but only six were native species from Ribeira Valley: lambari (Astyanax sp Linneaus, 1758, traíra (Hoplias malabaricus Bloch, 1794, robalo (Centropomus ssp Cuvier and Valenciennes, 1928, jundi

  7. Metal and trace element sediment assessment from Ribeira do Iguape river, Sao Paulo state, Brazil, by instrumental neutron activation analysis

    Energy Technology Data Exchange (ETDEWEB)

    Castro, Francisco J.V. de; Quinaglia, Gilson A., E-mail: franciscovc@cetesbnet.sp.gov.br, E-mail: gilsonn@cetesbnet.sp.gov.br [CETESB - Companhia Ambiental do Estado de Sao Paulo, SP (Brazil). ELTA - Setor de Analises Toxicologicas; Favaro, Deborah I.T., E-mail: defavaro@ipen.br [Instituto de Pesquisas Energeticas e Nucleares (LAN/IPEN/CNEN-SP), Sao Paulo, SP (Brazil). Laboratorio de Analise por Ativacao Neutronica; Franklin, Robson L.; Ferreira, Francisco J., E-mail: robsonf@cetesbnet.sp.gov.br, E-mail: franciscoj@cetesbnet.sp.gov.br [CETESB - Companhia Ambiental do Estado de Sao Paulo, SP (Brazil). ELAI - Setor de Quimica Inorganica

    2011-07-01

    The watershed region of the Ribeira do Iguape River and the estuarine complex of the Paranagua-Iguape- Cananeia and the various river basins located between this region and the Atlantic Ocean, is known as the Ribeira Valley. The Ribeira do Iguape River runs a total length of approximately 470 km, being the main source of fresh water in the Estuarine Complex of the Iguape-Cananeia-Paranagua (Lagamar). The Ribeira do Iguape River is the last major river in the State of Sao Paulo that has not been altered by dams. During virtually the entire 20th century, the region of the Ribeira Valley was the scene of constant environmental degradation resulting from the intense exploration and refining of lead, zinc and silver ores that were processed in the mines of the region, in a rudimentary way and without any control over environmental impacts. Since 1996, all such activities ceased, however, leaving behind a huge amount of environmental liabilities. This study aims to investigate the presence and concentration levels of metals and semi-metals arsenic (As), cadmium (Cd) and lead (Pb) in the sediment and water of aquatic systems of Ribeira do Iguape River and its tributaries, for an environmental assessment and monitoring of the region. The determination of these elements was carried out by GF AAS technique for water samples and ICP OES for the sediment samples. This study also assessed the occurrence of some major (Ca, Fe, K and Na), trace (As, Ba, Br, Co, Cs, Hf, Rb, Sb, Sc, Se, Ta, Th, U, Zn) and rare earth elements (La, Ce, Eu, Nd, Sm, Lu, Tb and Yb) by Neutron Activation Analysis (NAA). Validation of both methodologies, according to precision and accuracy, was done by reference material analyses. The results obtained for As, Cd and Pb were compared to the Canadian Environmental oriented values (TEL and PEL). The results obtained for multielemental analyses in the sediment samples were compared to UCC values (Upper Continental Crust). (author)

  8. Metal and trace element sediment assessment from Ribeira do Iguape river, Sao Paulo state, Brazil, by instrumental neutron activation analysis

    International Nuclear Information System (INIS)

    Castro, Francisco J.V. de; Quinaglia, Gilson A.; Favaro, Deborah I.T.; Franklin, Robson L.; Ferreira, Francisco J.

    2011-01-01

    The watershed region of the Ribeira do Iguape River and the estuarine complex of the Paranagua-Iguape- Cananeia and the various river basins located between this region and the Atlantic Ocean, is known as the Ribeira Valley. The Ribeira do Iguape River runs a total length of approximately 470 km, being the main source of fresh water in the Estuarine Complex of the Iguape-Cananeia-Paranagua (Lagamar). The Ribeira do Iguape River is the last major river in the State of Sao Paulo that has not been altered by dams. During virtually the entire 20th century, the region of the Ribeira Valley was the scene of constant environmental degradation resulting from the intense exploration and refining of lead, zinc and silver ores that were processed in the mines of the region, in a rudimentary way and without any control over environmental impacts. Since 1996, all such activities ceased, however, leaving behind a huge amount of environmental liabilities. This study aims to investigate the presence and concentration levels of metals and semi-metals arsenic (As), cadmium (Cd) and lead (Pb) in the sediment and water of aquatic systems of Ribeira do Iguape River and its tributaries, for an environmental assessment and monitoring of the region. The determination of these elements was carried out by GF AAS technique for water samples and ICP OES for the sediment samples. This study also assessed the occurrence of some major (Ca, Fe, K and Na), trace (As, Ba, Br, Co, Cs, Hf, Rb, Sb, Sc, Se, Ta, Th, U, Zn) and rare earth elements (La, Ce, Eu, Nd, Sm, Lu, Tb and Yb) by Neutron Activation Analysis (NAA). Validation of both methodologies, according to precision and accuracy, was done by reference material analyses. The results obtained for As, Cd and Pb were compared to the Canadian Environmental oriented values (TEL and PEL). The results obtained for multielemental analyses in the sediment samples were compared to UCC values (Upper Continental Crust). (author)

  9. Ribeira do Iguape basin water quality assessment for drinking water supply; Avaliacao da qualidade da agua na bacia hidrografica do Ribeira de Iguape com vistas ao abastecimento publico

    Energy Technology Data Exchange (ETDEWEB)

    Cotrim, Marycel Elena Barboza

    2006-07-01

    Ribeira do Iguape Basin, located in the Southeast region of Sao Paulo state, is the largest remaining area of Mata Atlantica which biodiversity as rich as Amazon forest , where the readiness of water versus demand is extremely positive. With sparse population density and economy almost dependent on banana agriculture, the region is still well preserved. To water supply SABESP (Sao Paulo State Basic Sanitation Company). Ribeira do Iguape Businesses Unit - RR, uses different types of water supplies. In the present work, in order to ascertain water quality for human consumption, major and minor elements were evaluated in various types of water supply (surface and groundwater's as well as the drinking water supplied). Forty three producing systems were monitored: 18 points of surface waters and treated distributed water, 10 points of groundwater and 15 points of surface water in preserved areas, analyzing 30 elements. Bottom sediments (fraction < 63 {mu}m) were also evaluated. The sampling period covered dry and wet seasons from March 2002 to February 2003. The descriptive analysis showed that Al, Fe and Mn, exceeding CONAMA 357 quality guideline. A comparison of the elemental concentrations with the Brazilian Drinking Water Legislation (Portaria 518/04) showed that with the exception of some violations, the levels of all the elements investigated were below the Brazilian Legislation maximum allowed concentrations. This study examined the relationship between the type of water supply and the quality of water used, showed different characteristics on Ca, Fe, Mn concentration. In bottom sediments (fraction <63 {mu}m), Al, Fe and Mg largest concentrations were found. Pb and Zn presents concentrations up to 142,0 {mu}g.g{sup -1} and 172 {mu}g.g{sup -1}, respectively. Data revealed that trace elements concentration in the sediment were below PEL (Probable Effect Level - probable level of adverse effect to the biological community), exception for Pb in Sete Barras and

  10. Ribeira do Iguape basin water quality assessment for drinking water supply; Avaliacao da qualidade da agua na bacia hidrografica do Ribeira de Iguape com vistas ao abastecimento publico

    Energy Technology Data Exchange (ETDEWEB)

    Cotrim, Marycel Elena Barboza

    2006-07-01

    Ribeira do Iguape Basin, located in the Southeast region of Sao Paulo state, is the largest remaining area of Mata Atlantica which biodiversity as rich as Amazon forest , where the readiness of water versus demand is extremely positive. With sparse population density and economy almost dependent on banana agriculture, the region is still well preserved. To water supply SABESP (Sao Paulo State Basic Sanitation Company). Ribeira do Iguape Businesses Unit - RR, uses different types of water supplies. In the present work, in order to ascertain water quality for human consumption, major and minor elements were evaluated in various types of water supply (surface and groundwater's as well as the drinking water supplied). Forty three producing systems were monitored: 18 points of surface waters and treated distributed water, 10 points of groundwater and 15 points of surface water in preserved areas, analyzing 30 elements. Bottom sediments (fraction < 63 {mu}m) were also evaluated. The sampling period covered dry and wet seasons from March 2002 to February 2003. The descriptive analysis showed that Al, Fe and Mn, exceeding CONAMA 357 quality guideline. A comparison of the elemental concentrations with the Brazilian Drinking Water Legislation (Portaria 518/04) showed that with the exception of some violations, the levels of all the elements investigated were below the Brazilian Legislation maximum allowed concentrations. This study examined the relationship between the type of water supply and the quality of water used, showed different characteristics on Ca, Fe, Mn concentration. In bottom sediments (fraction <63 {mu}m), Al, Fe and Mg largest concentrations were found. Pb and Zn presents concentrations up to 142,0 {mu}g.g{sup -1} and 172 {mu}g.g{sup -1}, respectively. Data revealed that trace elements concentration in the sediment were below PEL (Probable Effect Level - probable level of adverse effect to the biological community), exception for Pb in Sete Barras and

  11. Morphological variation and isozyme diversity in Dioscorea alata L. landraces from Vale do Ribeira, Brazil

    Directory of Open Access Journals (Sweden)

    Eduardo de Andrade Bressan

    2011-08-01

    Full Text Available Traditional growers of the Vale do Ribeira, São Paulo State, grow and make use of several D. alata landraces. This study assessed the genetic diversity of 16 landraces, using isozymatic and morphological markers and comparing them with 19 commercial varieties of D. alata. Their distribution in different levels of organization such as households and communities of the Vale do Ribeira was evaluated. Isozymatic analyses were performed with polyacrylamide (six systems and starch gels (one system, while the morphological analyses were carried out with 24 traits. Due to the polyploid nature of this species, the isozymatic bands were scored as binary data. Morphological traits were also scored as binary data. Principal coordinates and cluster analyses were conducted for both markers, using for the later the Jaccard´s similarity coefficient and UPGMA method. The separation of the landraces from the commercial varieties, which showed lower genetic diversity, was reported for both markers. No correlation between genetic and geographical distances was found for both data, which suggests that the observed variability is not spatially structured. Also, no correlation was found between both markers. The analysis of molecular variance (AMOVA indicated that genetic diversity was mainly found within households for both isozymatic (54% and morphological (70% markers. The results obtained for both markers revealed the importance of traditional agriculturists in the Vale do Ribeira in maintaining high diversity for D. alata, even higher than the varieties commercialized in São Paulo State, contributing for the in situ/on farm conservation of this crop.

  12. Nitrogen and potassium fertilization on 'Caipira' and 'BRS Princesa' bananas in the Ribeira Valley.

    OpenAIRE

    NOMURA, E. S.; CUQUEL, F. L.; DAMATTO JUNIOR, E. R.; FUZITANI, E. J.; BORGES, A. L.; SAES, L. A.

    2016-01-01

    ABSTRACT ‘BRS Princesa’ (AAAB) and ‘Caipira’ (AAA) banana cultivars have similar sensorial features in comparison to the ‘Maçã’ banana. They are resistant to Panama disease, which allows them to grow in the Ribeira Valley, the largest banana plantation area in the São Paulo State. However, there is no information on how to fertilize crop under these edaphoclimatic conditions. This study aimed to evaluate the development and production of ‘Caipira’ and ‘BRS Princesa’ bananas, by applying four ...

  13. Assessing Rainfall Erosivity with Artificial Neural Networks for the Ribeira Valley, Brazil

    Directory of Open Access Journals (Sweden)

    Reginald B. Silva

    2010-01-01

    Full Text Available Soil loss is one of the main causes of pauperization and alteration of agricultural soil properties. Various empirical models (e.g., USLE are used to predict soil losses from climate variables which in general have to be derived from spatial interpolation of point measurements. Alternatively, Artificial Neural Networks may be used as a powerful option to obtain site-specific climate data from independent factors. This study aimed to develop an artificial neural network to estimate rainfall erosivity in the Ribeira Valley and Coastal region of the State of São Paulo. In the development of the Artificial Neural Networks the input variables were latitude, longitude, and annual rainfall and a mathematical equation of the activation function for use in the study area as the output variable. It was found among other things that the Artificial Neural Networks can be used in the interpolation of rainfall erosivity values for the Ribeira Valley and Coastal region of the State of São Paulo to a satisfactory degree of precision in the estimation of erosion. The equation performance has been demonstrated by comparison with the mathematical equation of the activation function adjusted to the specific conditions of the study area.

  14. Ribeira do Iguape basin water quality assessment for drinking water supply

    International Nuclear Information System (INIS)

    Cotrim, Marycel Elena Barboza

    2006-01-01

    Ribeira do Iguape Basin, located in the Southeast region of Sao Paulo state, is the largest remaining area of Mata Atlantica which biodiversity as rich as Amazon forest , where the readiness of water versus demand is extremely positive. With sparse population density and economy almost dependent on banana agriculture, the region is still well preserved. To water supply SABESP (Sao Paulo State Basic Sanitation Company). Ribeira do Iguape Businesses Unit - RR, uses different types of water supplies. In the present work, in order to ascertain water quality for human consumption, major and minor elements were evaluated in various types of water supply (surface and groundwater's as well as the drinking water supplied). Forty three producing systems were monitored: 18 points of surface waters and treated distributed water, 10 points of groundwater and 15 points of surface water in preserved areas, analyzing 30 elements. Bottom sediments (fraction -1 and 172 μg.g -1 , respectively. Data revealed that trace elements concentration in the sediment were below PEL (Probable Effect Level - probable level of adverse effect to the biological community), exception for Pb in Sete Barras and Eldorado. (author)

  15. ŠIMUN KOŽIČIĆ AND HIS PRINTING HOUSE IN PETAR KOLENDIĆ’S RESEARCH

    Directory of Open Access Journals (Sweden)

    Anica Nazor

    2012-01-01

    Full Text Available Literary historian Petar Kolendić (1882–1969 published two tributes to Šimun Kožičić: Zadranin Šimun Kožičić i njegova štamparija na Reci (Šimun Kožičić from Zadar and his Printing House in Rijeka and Najstariji naš bukvar (Our Oldest Elementary Reader. Both were published in: Južni pregled (Southern Review, year IX, Skoplje 1934, pp 61¬71; 198¬201. In the first tribute, the author presented in brief Kožičić’s life. He recorded that Kožičić, with many bishops “from our parts”, arrived to Rome in 1512, when the (ecumenical Fifth Council of the Lateran was held “with the main aim to create a frame of mind against the Turks”, with the intention to offer necessary information in person. In the first session held on 10 May 1512, Kožičić had the opportunity to hear Bernardin Zane, the Archbishop of Split, address this matter; consequently, he held his own first speech at the Council on 27 April 1513. He held his second speech – according to Kolendić’s words – “probably in agreement with Prince Bernardin Frankopan” in the autumn, on 5 November 1516, outside the Council session, before Pope Leo X and his cardinals. Kolendić states that no typographic note accompanied the publications of both Kožičić’s speeches, but that they took place “with surety in Rome”. Well¬known facts are that Kožičić was forced to leave Modruš, that he barely managed to escape from the Turks, that he stayed in Vinodol, and that, around 1529, he withdrew to Rijeka where he opened his Glagolitic Printing House. He travelled to Venice to acquire printing inventory for his Printing House. Kolendić establishes which xylographs and letters Kožičić acquired there, and shows that Kožičić’s letters differ from the Glagolitic letters produced by Andrea Torresani or the Printing House Francesco Bindoni et Maffeo Pasini, who had before Kožičić published the Glagolitic Breviary (1493, Elementary Reader (1527 and

  16. Contribution to the geochronological pile of the setentrional portion of Ribeira folded belt

    International Nuclear Information System (INIS)

    Batista, J.J.; Kawashita, K.

    1985-01-01

    Six new Rb-Sr isochrons on samples of rocks of the setentrional portion of the Ribeira folded belt are presented and discussed with others geochronological and geological data. The main object of this study is the search of the understanding of the geodynamic evolution of this Region using the Rb-Sr method. The results obtained for the K-Ar and U-Pb, in other papers, are also commented. The integrated analysis of the date deals with the charnocketic, gneissic - migmatitic and magmatic rocks. All the data are refered to the Brasiliano cicle (Upper Precambrian), and thus, the geochronological pattern points out to an important event in the generation of the geologic processes for the brasilian geotectonic unit. (Author) [pt

  17. A comparative study on the heavy metals distribution in sediment profiles from Ribeira and Sepetiba Bays, RJ - Brazil

    International Nuclear Information System (INIS)

    Carvalho, Franciane; Tadeu Lopes, Ricardo

    2008-01-01

    A set of sediment cores was sampled at Sepetiba bay and Ribeira bay, in the Rio de Janeiro State, Brazil. Sedimentation rates were determined by geochronological evaluation of sediments by Pb-210. In Ribeira Bay, the sedimentation rate increases from the sampling point RB1 (0.15 cm y -1 ), in the inner part of the bay, towards the sampling point RB4, close to its entrance (0.34 cm y -1 ). For Sepetiba Bay, two well-defined sedimentation rates were observed, a lower value of 0.3 cm y -1 for the period before the 1960s, and a more recent rate of 0.75 cm y -1 . These measurements are consistent to the construction of the Santa Cecilia impoundment in 1955, which brings water from the Paraiba do Sul Basin into the Guandu River, increasing the river flow from 20 m 3 s -1 to 160 m 3 s -1 . The metal concentrations were determined by ICP-MS. It could be seen that the reliability of Ribeira bay as a reference database for metal concentrations in the neighboring Sepetiba Bay is valid for a specific set of elements, such as K, Ti, Mn, Zn, Ga, Rb and Sr, but not for V, Cr and Cd. Applying to the mean elemental concentration, of the upper contaminated 45 cm sediment layer, and to the elemental concentration of the deepest analysed sediment layer a normalization to iron, a double ratio was calculated and it was concluded that the Sepetiba Bay sediments are, particularly, contaminated with Cr, may be, from a leather tanning plant existing in this region and Cd and Zn from the former Inga Metais. The overall results can be used to confirm the reliability of the utilization of Ribeira bay as a reference database to the evaluation of metal pollution profile of Sepetiba bay, by an intercomparison methodology. (author)

  18. Star persona and national identity in the age of the empire: The role of Maja Strozzi-Pečić in Petar Konjović’s opus

    Directory of Open Access Journals (Sweden)

    Grmuša Verica

    2016-01-01

    Full Text Available This study explores the collaboration between the soprano Maja Strozzi-Pečić and the composer Petar Konjović. It sheds light on the relations between the star and the musical work, as well as the notions of gender and genre, reinstating the performer to the centre of the historical stage within the epoch and the genre of music not usually associated with stardom. It examines the star as both the product and the producer, and as an embodiment of a national identity, highlighting the star’s agency in the creation of her own persona and the co-authoring of the works that she performed.

  19. Availability of metals Cd and Pb and metalloid As in the Ribeira do Iguape River hydrographic basin and its tributaries: an environmental contamination assessment'

    International Nuclear Information System (INIS)

    Castro, Francisco Jose Viana de

    2012-01-01

    During several decades the Alto Vale of Ribeira region (SP-PR) was under influence of lead mining activities, refined and processed in the mines of the region. Since 1996, all such activities ceased, however, leaving behind a huge amount of environmental liabilities. This study aimed to investigate the presence and concentration levels of metals cadmium (Cd) and lead (Pb) and metalloid arsenic (As) in the water, sediment and biota (fish blood) in the aquatic systems of Ribeira do Iguape River and its tributaries, for an environmental assessment and monitoring of the region. The sampling collection occurred in 8 sites and fish samples were caught by fishing nets and blood sampling was done in the site. The determination of these elements was carried out by atomic absorption spectrometry with graphite furnace electro thermal heating (GF AAS). This study also assessed the occurrence of some major (Ca, Fe, K and Na), trace (As, Ba, Br, Co, Cs, Hf, Rb, Sb, Sc, Se, Ta, Th, U, Zn) and rare earth elements (La, Ce, Eu, Nd, Sm, Lu, Tb and Yb) by Neutron Activation Analysis (NAA). Validation of both methodologies, regarding precision and accuracy, was done by reference material analyses. The results obtained for As, Cd and Pb in the sediment were compared to the Canadian Council of Ministers of the Environment (CCME), TEL (Threshold Effect Level) e PEL (Probable Effect Level) adopted by CETESB and CONAMA 454/2012 Resolution. The results for As, Cd and Pb in water samples were below the QL of the analytical technique used, indicating that these elements are in concentration levels that do not affect the water quality standard established by CONAMA 357/2005. On the other hand, the concentration values for these elements in fish blood and sediment samples showed a strong contamination tendency for Cd and Pb most of the sampling points assessed. The highest Cd concentration in fish blood was 24.3 μg L -1 , at site 2. For Pb, the highest concentration value was 118 νg L -1 , at

  20. Avaliação agronômica de genótipos de bananeiras em condições subtropicais, Vale do Ribeira, São Paulo - Brasil Agronomic evaluation of banana plants genotypes in subtropical conditions, Vale do Ribeira, São Paulo - Brazil

    Directory of Open Access Journals (Sweden)

    Edson Shigueaki Nomura

    2013-03-01

    Full Text Available Existe grande número de cultivares de bananeira no Brasil, porém quando se consideram aspectos como preferência dos consumidores, produtividade, tolerância às pragas e doenças, porte adequado e resistência à seca e ao frio, restam poucas com potencial agronômico para serem usadas comercialmente. Objetivando avaliar o desenvolvimento vegetativo de genótipos de bananeiras nas condições edafoclimáticas do Vale do Ribeira (Brasil, foram testados os seguintes materiais, separados em dois grupos genômicos: AAAA (Bucaneiro, FHIA 02 e FHIA 17; e AAAB, sendo este subdividido de acordo com a genitora utilizada no melhoramento: Prata (BRS Garantida, FHIA 18, BRS FHIA Maravilha, BRS Platina e PA94-01; Pacovan (BRS Japira, BRS Pacovan Ken, PV79-34, PV94-01 e BRS Vitória; e Yangambi n.2 (BRS Tropical, BRS Princesa e YB42-03. As cultivares Grande Naine (AAA, Pacovan (AAB, Prata-anã (AAB e Yangambi ou Caipira (AAA apresentam desenvolvimento e produção semelhantes aos genótipos avaliados, portanto foram utilizadas como padrão comparativo. Durante dois ciclos, foram avaliadas as seguintes características de desenvolvimento: altura, diâmetro do pseudocaule, número de folhas ativas (florescimento e colheita, intervalo entre plantio e florescimento, e entre plantio e colheita (dias. Calcularam-se os intervalos de confiança (média ± erro-padrão nos diferentes grupos e tipos de banana. Diante dos resultados obtidos conclui-se que os genótipos do grupo AAAB e genitora 'Pacovan' não são adequados para o cultivo na região devido ao porte alto das plantas, e os genótipos de bananeiras que possuem potencial de cultivo na região do Vale do Ribeira são: grupo AAAA (FHIA 02 e FHIA 17; grupo AAAB: genitora 'Prata' (FHIA 18, BRS Garantida e PA94-01 e genitora 'Yangambi n.2' (BRS Tropical, BRS Princesa e Yangambi.There is a large number of banana cultivars in Brazil, but considering consumer preference, productivity, tolerance to pests and

  1. Characterization of lactic acid bacteria from musts and wines of three consecutive vintages of Ribeira Sacra.

    Science.gov (United States)

    Mesas, J M; Rodríguez, M C; Alegre, M T

    2011-03-01

    This study was designed to isolate and characterize the lactic acid microbiota of the musts and wines of a young denomination of origin area, Ribeira Sacra in north-west Spain. Over three consecutive years (2007, 2008 and 2009), we examined musts and wines from four cellars in different zones of the region. Through biochemical and genetic tests, 459 isolates of lactic acid bacteria (LAB) were identified as the following species: Lactobacillus alvei (0·7%), Lactobacillus brevis (1·7%), Lactobacillus frumenti (0·9%), Lactobacillus kunkeei (12%), Lactobacillus plantarum (6·5%), Lactobacillus pentosus (0·9%), Lactococcus lactis ssp. lactis (3%), Leuconostoc citreum (0·7%), Leuconostoc fructosum (synon. Lactobacillus fructosum) (3·7%), Leuconostoc mesenteroides ssp. mesenteroides (2·8%), Leuconostoc pseudomesenteroides (0·2%), Oenococcus oeni (59%), Pediococcus parvulus (7%) and Weisella paramesenteroides (synon. Leuconostoc paramesenteroides) (0·9%). Of these species, O. oeni was the main one responsible for malolactic fermentation (MLF) in all cellars and years with the exception of Lact. plantarum, predominant in 2007, in one cellar, and Lact. brevis, Lact. frumenti and Ped. parvulus coexisting with O. oeni in one cellar in 2009. Different strains (84) of LAB species (14) were identified by biochemical techniques (API strips, the presence of plasmids, enzyme activities and MLF performance) and molecular techniques (PCR). All assays were carried out with every one of the 459 isolates. To select candidates for use as culture starters, we assessed malolactic, β-glucosidase and tannase activities, the presence of genes involved in biogenic amine production and plasmid content. A high diversity of LAB is present in the grape musts of Ribeira Sacra but few species are responsible for MLF; however, different strains of such species are involved in the process. As far as we are aware, this is the first report of Lact. frumenti thriving in wine. Information on LAB

  2. Avaliação agronômica de genótipos de bananeiras em condições subtropicais, Vale do Ribeira, São Paulo - Brasil

    Directory of Open Access Journals (Sweden)

    Edson Shigueaki Nomura

    2013-03-01

    Full Text Available Existe grande número de cultivares de bananeira no Brasil, porém quando se consideram aspectos como preferência dos consumidores, produtividade, tolerância às pragas e doenças, porte adequado e resistência à seca e ao frio, restam poucas com potencial agronômico para serem usadas comercialmente. Objetivando avaliar o desenvolvimento vegetativo de genótipos de bananeiras nas condições edafoclimáticas do Vale do Ribeira (Brasil, foram testados os seguintes materiais, separados em dois grupos genômicos: AAAA (Bucaneiro, FHIA 02 e FHIA 17; e AAAB, sendo este subdividido de acordo com a genitora utilizada no melhoramento: Prata (BRS Garantida, FHIA 18, BRS FHIA Maravilha, BRS Platina e PA94-01; Pacovan (BRS Japira, BRS Pacovan Ken, PV79-34, PV94-01 e BRS Vitória; e Yangambi n.2 (BRS Tropical, BRS Princesa e YB42-03. As cultivares Grande Naine (AAA, Pacovan (AAB, Prata-anã (AAB e Yangambi ou Caipira (AAA apresentam desenvolvimento e produção semelhantes aos genótipos avaliados, portanto foram utilizadas como padrão comparativo. Durante dois ciclos, foram avaliadas as seguintes características de desenvolvimento: altura, diâmetro do pseudocaule, número de folhas ativas (florescimento e colheita, intervalo entre plantio e florescimento, e entre plantio e colheita (dias. Calcularam-se os intervalos de confiança (média ± erro-padrão nos diferentes grupos e tipos de banana. Diante dos resultados obtidos conclui-se que os genótipos do grupo AAAB e genitora 'Pacovan' não são adequados para o cultivo na região devido ao porte alto das plantas, e os genótipos de bananeiras que possuem potencial de cultivo na região do Vale do Ribeira são: grupo AAAA (FHIA 02 e FHIA 17; grupo AAAB: genitora 'Prata' (FHIA 18, BRS Garantida e PA94-01 e genitora 'Yangambi n.2' (BRS Tropical, BRS Princesa e Yangambi.

  3. Proposal for the further development of the 'Ribeira Grande' agricultural geothermal project

    International Nuclear Information System (INIS)

    Popovski, Kiril; De Medeiros, Jorge Rosa; Rodrigues, Ana Catarina Tavares

    2000-01-01

    Geothermal project Ribeira Grande has been the first trial to introduce the possibilities of direct application of geothermal energy at Azores. As all the first experiences, it's development has been escorted with a list of difficulties and problems, resulting with non proper completion of some systems and installations. However, even not complete, the reached results justified both technically and economically the indigenous resource door for further activities and development. Presented proposal for the second phase of project development consists two very important advantages: 1) Enables development of new demonstration and productive projects, without engaging new import of fuels or other energents; 2) Enables development based on the already existing economy sectors at the islands and makes them more profitable and accommodated to the requests of the national and international market. However, influencing national and international preconditions for the realization of the proposed activities are not very convenient and are requesting a concentrate engagement of the Institute for Innovative Technologies of Azores INOVA during the period of next 5 years. The final success of this engagement shall open very wide possibilities for direct application of geothermal energy development in this isolated EC community, presently mainly orientated towards import both of energy and food. (Authors)

  4. Regional elevation history from Ribeira belt based in K-Ar dating

    International Nuclear Information System (INIS)

    Zimbres, E.; Kawashita, K.; Motoki, A.

    1990-01-01

    The Ribeira orogenic belt, Brazilian cycle in metamorphism, has biotite K-Ar ages becoming young from the border (600 Ma) to the central axis (450 Ma), these ages are not related to rock type nor intrusive phase, but to occurrence area. The fact suggests that this wide-ranging age distribution is not due to later thermal events, e.g. post tectonic intrusion, but to slow cooling on the axis zone. The climax metamorphic condition have been estimated as 675 sup(0)C and 4 to 5 kb (18 km's depth). This temperature is much higher than that of biotite argon retention (310 sup(0)C). These data indicate that the biotite K-Ar clock have been set fairly after the climax during regional uplift at a depth much shallower that the metamorphism. Biotite clock setting depth (310 sup(0)C) is calculated as 7.5 km, using geothermal gradient of 30 sup(0)C/km. In this connection, uplift of 11.5 km from 600 Ma to 450 Ma (rate of 77 m/m.y.) is estimated. Fission track datings in apatite (110 Ma), combined with a present geothermal gradient (25 sup(0)C/km) indicate uplift of 3.5 km from 450 Ma to 110 Ma (16 m/m.y.) and 4 km from 110 Ma to the present (35 m/m.y.). (author)

  5. Availability of metals Cd and Pb and metalloid As in the Ribeira do Iguape River hydrographic basin and its tributaries: an environmental contamination assessment'; Disponibilidade dos metais Cd e Pb e do metaloide As na bacia hidrografica do Rio Ribeira do Iguape e afluentes: uma avaliacao da contaminacao ambiental

    Energy Technology Data Exchange (ETDEWEB)

    Castro, Francisco Jose Viana de

    2012-07-01

    During several decades the Alto Vale of Ribeira region (SP-PR) was under influence of lead mining activities, refined and processed in the mines of the region. Since 1996, all such activities ceased, however, leaving behind a huge amount of environmental liabilities. This study aimed to investigate the presence and concentration levels of metals cadmium (Cd) and lead (Pb) and metalloid arsenic (As) in the water, sediment and biota (fish blood) in the aquatic systems of Ribeira do Iguape River and its tributaries, for an environmental assessment and monitoring of the region. The sampling collection occurred in 8 sites and fish samples were caught by fishing nets and blood sampling was done in the site. The determination of these elements was carried out by atomic absorption spectrometry with graphite furnace electro thermal heating (GF AAS). This study also assessed the occurrence of some major (Ca, Fe, K and Na), trace (As, Ba, Br, Co, Cs, Hf, Rb, Sb, Sc, Se, Ta, Th, U, Zn) and rare earth elements (La, Ce, Eu, Nd, Sm, Lu, Tb and Yb) by Neutron Activation Analysis (NAA). Validation of both methodologies, regarding precision and accuracy, was done by reference material analyses. The results obtained for As, Cd and Pb in the sediment were compared to the Canadian Council of Ministers of the Environment (CCME), TEL (Threshold Effect Level) e PEL (Probable Effect Level) adopted by CETESB and CONAMA 454/2012 Resolution. The results for As, Cd and Pb in water samples were below the QL of the analytical technique used, indicating that these elements are in concentration levels that do not affect the water quality standard established by CONAMA 357/2005. On the other hand, the concentration values for these elements in fish blood and sediment samples showed a strong contamination tendency for Cd and Pb most of the sampling points assessed. The highest Cd concentration in fish blood was 24.3 {mu}g L{sup -1}, at site 2. For Pb, the highest concentration value was 118 {nu}g L

  6. Food models and productive arrangements in the Vale do Ribeira Paranaense: a study on the principles of food sovereignty

    Directory of Open Access Journals (Sweden)

    Rubia Carla Formighieri Giordani

    2015-12-01

    Full Text Available The relationship between food production and the social organization of geographic space are fundamental for the understanding of feeding practices in rural areas. This article presents a case study on the food sovereignty between family farmers of the Vale do Ribeira in the State of Parana. The study showed that the organizational aspects and economic rural property interfere in the definition of the models of food intake. The changes in agricultural production, the reduction of area planted and the little variety were responsible for the decline in consumption of vegetables, milk and meat. It was even noted some alimentary monotony on foods with emphasis on fruits, vegetables, roots, and cereals.

  7. A cave population of Isbrueckerichthys alipionis (Gosline, 1947 in the Upper Ribeira karst area, southeastern Brazil (Siluriformes: Loricariidae

    Directory of Open Access Journals (Sweden)

    Eleonora Trajano

    Full Text Available A cave population of the armored catfish Isbrueckerichthys alipionis is reported from the Santana Cave, in the rio Betari watershed, Upper Ribeira karst area, Iporanga, São Paulo State, southeastern Brazil. The cave population was compared to an epigean population of I. alipionis and no significant differences where found in morphology or degree of pigmentation. As the cave population is known for at least 30 years and is apparently isolated from epigean streams, it is classified as troglophilic. The discovery of this troglophilic species in the Santana Cave is an additional strong argument for the conservation of that cave.

  8. Potential Offshore Submarine Groundwater in the Albufeira-Ribeira de Quarteira aquifer system (Algarve, Portugal)

    Science.gov (United States)

    Hugman, Rui; Stigter, Tibor; Monteiro, Jose Paulo

    2015-04-01

    The Albufeira-Ribeira de Quarteira aquifer system on the south coast of Portugal is an important source of groundwater for agriculture and tourism, as well as contributing to significant freshwater discharge along the coast in the form of inter- and sub-tidal springs and maintaining groundwater dependent ecosystems along the Quarteira stream. Submarine groundwater discharge (SGD) in the area was investigated within the scope of a multidisciplinary research project FREEZE (PTDC/MAR/102030/2008) which aimed to identify and characterize the effects of the hydrological/hydrogeological conditions on associated ecosystems. As well as near shore submarine springs, signs of SGD were found several kilometres from the shoreline during offshore CTD and geophysical surveys. On-land geophysical and offshore seismic surveys supplied data to update the 3D hydrogeological conceptual model of the aquifer system. Numerical models were applied to test the possibility of an offshore continuation of fresh groundwater over several kilometres under local conditions. Due to the high computational demand of variable density modelling, in an initial phase simplified 2D cross section models were used to test the conceptual model and reduce uncertainty in regards to model parameters. Results confirm the potential for SGD several kilometres from the coast within a range of acceptable values of hydraulic conductivity and recharge of the system. This represents the initial step in developing and calibrating a 3D regional scale model of the system, which aims to supply an estimate of the spatial distribution of SGD as well as serve as a decision support tool for the local water resources management agency.

  9. Vertical displacement during late-collisional escape tectonics (Brasiliano Orogeny) in the Ribeira Belt, São Paulo State, Brazil

    Science.gov (United States)

    Hackspacher, P. C.; Godoy, A. M.

    1999-07-01

    During the Brasiliano-Pan-African Orogeny, West Gondwana formed by collisional processes around the São Francisco-Congo Craton. The Ribeira belt, in southeastern Brazil, resulted from northwestward collision (650-600 Ma), followed by large-scale northeast-southwest dextral strike-slip shear movements related to late-collisional escape tectonics ( ca 600 Ma). In São Paulo State, three groups, also interpreted as terranes, are recognised in the Ribeira Belt, the Embu, Itapira and São Roque Groups. The Embu and Itapira Groups are formed of sillimanite-gneisses, schists and migmatites intruded by Neoproterozoic calc-alkaline granitoids, all thrusted northwestward. The São Roque Group is composed of metasediments and metavolcanics in greenschist-facies. Its deformation indicates a transpressional regime associated with tectonic escape. Sub-alkaline granites were emplaced in shallow levels during this regime. Microstructural studies along the Itu, Moreiras and Taxaquara Shear Zones demonstrate the coexistence of horizontal and vertical displacement components during the transpressional regime. The vertical component is regarded as responsible for the lateral juxtaposition of different crustal levels.

  10. Prince of zeta by Petar Konjović: Opera in five/four acts on the 125th anniversary of the composer's birth

    Directory of Open Access Journals (Sweden)

    Mosusova Nadežda

    2008-01-01

    Full Text Available Petar Konjović (Čurug, May 5, 1883 - Belgrade, October 1, 1970 stands out among Serbian composers as an author of instrumental and vocal compositions. Studies at the Prague Conservatory (1904-1906 acquainted Konjović with Czech music, Wagner's opus, and the Russian national-romantic school, which contributed to the evolution of his talent for both music and stage, enabling him to express his ideas more explicitly in operatic works. It was in the Prague that the second opera - Prince of Zeta - was conceived, with new musical vividness and dramatic appeal (first version composed 1906-1926, the second and final 1929-1939, followed by Koštana (1928, Peasants (1951 and Fatherland (1960. Konjović's mature operas are characterized by his masterful handling of form, both in close-ups and in detail, as well as his deeply individual assimilation of musical folklore into his work. The Prince of Zeta is not to be understood as a folk opera, but some main themes are directly derived from folk music, precisely from the Montenegrin folk songs quoted in the Mokranjac's Ninth Garland and treated in Konjović's post-romantic, almost expressionistic way, interwoven with some Italianate leitmotifs, so as to present the opera's two worlds, Montenegrin and Venetian. In the process of forming Konjović's operatic style, with vocal parts based mainly on the principle of declamation, the opera Prince of Zeta (first performed in Belgrade, 1929, conducted by Lovro von Matačić proved to be a work of great impact. Hardly anyone grasped then the wide sweep of inspiration which allowed the composer to set and to solve several important problems connected with music drama, essential also in his subsequent stage works. First of all, Konjović had to handle in his own way the verbal drama the prototype of his opera, Maxim Crnojević by the Serbian poet Laza Kostić (1841-1910. Permission came from the playwright in the first decade of the 1900, Prince of Zeta being partly

  11. Metal contamination and fractionation in sediments from the lower basin of the Vale do Ribeira (SE, Brazil).

    Science.gov (United States)

    Bonnail, Estefanía; Buruaem, Lucas M; Morais, Lucas G; Abessa, Denis M S; Sarmiento, Aguasanta M; DelValls, T Ángel

    2017-06-01

    The sediment quality of Ribeira de Iguape River is affected by former Pb extraction mining. Some studies affirm the restoration status of the basin, however, mobility of metals and its associated risk is still questioned. This study integrates the metal concentrations in the lower part of the basin with different contamination source to determine the existence of risks associated with the mobile fractions of the geochemical matrix. Despite concentrations of metals were low and the environmental risk factor values were negative, our results indicated that As, Mn, Pb, and V were present in the most labile forms. The multivariate analysis conducted using metal concentrations, environmental risk factor values and speciation suggested that any risk would be associated with the labile fractions of the analyzed elements, especially for Pb. The station from Registro was stressed by Co, Pb and Zn; with Pb under the reactive fraction that could be associated with high mobility and potential bioavailability.

  12. Evidence of mingling between contrasting magmas in a deep plutonic environment: the example of Várzea Alegre, in the Ribeira Mobile Belt, Espírito Santo, Brazil

    Directory of Open Access Journals (Sweden)

    SILVIA R. MEDEIROS

    2001-03-01

    Full Text Available At the end of the geotectonic cycle that shaped the northern segment of the Ribeira Mobile Belt (Upper Proterozoic to Paleozoic age, a late to post-collisional set of plutonic complexes, consisting of a wide range of lithotypes, intruded all metamorphic units. The Várzea Alegre Intrusive Complex is a post-collisional complex. The younger intrusion consists of an inversely zoned multistage structure envolved by a large early emplaced ring of megaporphyritic charnoenderbitic rocks. The combination of field, petrographic and geochemical data reveals the presence of at least two different series of igneous rocks. The first originated from the partial melting of the mantle. This was previously enriched in incompatible elements, low and intermediate REE and some HFS-elements. A second enrichment in LREE and incompatible elements in this series was due to the mingling with a crustal granitic magma. This mingling process changed the composition of the original tholeiitic magma towards a medium-K calc-alkalic magma to produce a suite of basic to intermediate rock types. The granitic magma from the second high-K, calc-alkalic suite originated from the partial melting of the continental crust, but with strong influence of mantle-derived melts.No final do ciclo tectônico que originou o segmento norte do Cinturão Móvel Ribeira (de idade Proterozóica Superior a Paleozóica, uma série de complexos plutônicos tardi- a pós-colisionais, consistindo de larga gama de litotipos, intrudiu todas as unidades metamórficas. O Complexo Intrusivo de Várzea Alegre é um desses complexos pós-colisionais. A intrusão mais jovem consiste de uma estrutura de multiplos estágios, envolvida por um largo anel de rochas charnoenderbíiticas megaporfirícas de posicionmento anterior. A combinação de dados de campo, petrográficos e geoquímicos revela a presença de pelo menos duas séries distintas de rochas ígneas. A primeira foi originada por fusão parcial do manto

  13. Assessment of natural radioactivity levels in waters from the higher Ribeira Valley to the southern Sao Paulo state coastal plain

    International Nuclear Information System (INIS)

    Jesus, Sueli Carvalho de

    2010-01-01

    fundamental information on the interaction of sediments, groundwater and estuarine waters. In this project, the distribution of natural Ra isotopes was studied in ix surface, groundwater and estuarine water samples collected from dry and wet seasons (2009 - 2010) campaigns performed in Ribeira Valley, Southern Sao Paulo State. The inventory allowed the application of Ra isotopes as tracers of fluvial and groundwater discharges to the Cananeia-Iguape estuarine complex. The exchange of groundwater/surface water in Ribeira do Iguape River basin and related fluxes of several constituents for the Cananeia-Iguape estuarine complex mass balance is still not very well known. The results obtained in this research work evidenced that there is a prevalence of 228 Ra isotope in all the set of samples analyzed. However, the activity concentrations of Ra isotopes determined from Higher Ribeira Valley through the Southern Coastal Plain of Sao Paulo are representative of natural background levels, showing low or minimal human intervention. In the set of samples collected along Ribeira do Iguape River, Cananeia and Iguape outlets, the higher concentrations of Ra were observed in bottom waters, indicating the diffusion of 228 Ra from sediments recently deposited as a potential source of the increased concentrations of this isotope when compared with others. The activity concentrations of the short-lived Ra isotopes were negligible, lower than the limit of the detection. Fluxes of Ra for Cananeia outlet are strongly influenced by tidal oscillations, which modulate the increase and decrease of Ra concentrations in response of the respective increase and decrease of waters salinity. In Iguape outlet and in hydrochemical stations performed along Ribeira do Iguape River it was observed a linear relationship between the amount of suspended matter and the increase of 228 Ra activity concentration. When we evaluate qualitatively the differences in behavior of both long-lived Ra isotopes, the

  14. Preferências alimentares de mosquitos Culicidae no Vale do Ribeira, São Paulo, Brasil Feeding preferences of Culicidae mosquitoes in the Ribeira Valley, S.Paulo State, Brazil

    Directory of Open Access Journals (Sweden)

    Oswaldo Paulo Forattini

    1987-06-01

    Full Text Available São apresentados os resultados obtidos na identificação do sangue ingerido por culicídeos ingurgitados coletados em vários ambientes rurais de cinco localidades do Vale do Ribeira, Estado de São Paulo (Brasil. O maior rendimento, que representou a quase totalidade dos espécimens coletados, foi obtido mediante o emprego da aspiração e das redes manuais. Foi possível identificar a origem de 1.444 repastos sangüíneos. Os Aedes apresentaram predominância de positividade para mamíferos. Ae. scapularis mostrou preferência por hospedeiros de grande porte representados por bovinos e eqüinos. Ae. serratus alimentou-se também em aves. Com exceção da elevada antropofilia de Cx. quinquefasciatus, os demais representantes de Cx. (Culex revelaram-se apreciavelmente ornitófilos. Em conjunto, Cx. (Melanoconion mostrou o mais amplo espectro de hematofagia, que incluiu anfíbio, ave, mamíferos e réptil. Cx. ribeirensis e Cx. sacchettae apresentaram resultados que sugerem alguma preferência por mamíferos. A antropofilia distribuiu-se por várias espécies destacando-se Ae. scapularis, Cx. sacchettae e Cx. ribeirensis que a apresentaram nas coletas efetuadas no intradomicílio. A influência da densidade de hospedeiros no ambiente modificado fez-se sentir em relação à primeira dessas três espécies, para as quais as evidências obtidas sugerem que estejam evoluindo no sentido da domiciliação.Results of blood-meal identification for mosquitoes collected in 5 different Ribeira Valley (S.Paulo State, Brazil environments are presented. Precipitin tests identified the sources of 1444 blood-meals. Aedes mosquitoes fed chiefly on mammals. Ae. scapularis showed a preference for cattle and horses. Ae. serratus also obtained meals from avian hosts. Leaving aside the anthropophilic Cx.quinquefasciatus, the other Culex (Culex mosquitoes showed feeding pattern directed to avian hosts. On the whole Culex (Melanoconion showed a largely eclectic

  15. Isolation of Leptospira santarosai, serovar guaricura from buffaloes (Bubalus bubalis in Vale do Ribeira, São Paulo, Brazil

    Directory of Open Access Journals (Sweden)

    Vasconcellos Silvio A.

    2001-01-01

    Full Text Available In April 1998 urine samples from adult female buffaloes were collected in a farm located in Registro, Vale do Ribeira, São Paulo State, Brazil. The urine samples obtained after furosemide injection were immediately transported to the laboratory in liquid modified EMJH medium and seeded, by the serial dilution technique, into Fletcher's or modified EMJH-0.2% agar, both of them with 5-fluorouracil 100mg/mL. The intraperitoneoum inoculation of 0.5 mL was also performed with each urine sample in young, adult hamsters (Mesocricetus auratus. All samples seeded directly in culture medium were contaminated. The hamsters did not show any sign of disease and were killed at the 21st post inoculation day. At this time kidney cultures of these animals were performed and from one of them, one leptospira strain (M04-98 was isolated, identified as belonging to serogroup Sejroe by Microscopic Agglutination Test (MAT with a panel of 36 rabbit sera against serovars representative for the pathogenic serogroups. Subsequently, MAT was carried out with antisera against the 19 reference strains of serogroup Sejroe, revealing a close relationship with serovar guaricura. Afterwards the MAT was done with a panel of 18 monoclonal antibodies representative for serovars of serogroup Sejroe. The histogram closely resembled that of serovar guaricura. So Cross Agglutination Absorption Test (CAAT was carried out with the buffalo isolate and serovar guaricura, supporting the relationship between the buffalo isolate and serovar guaricura.

  16. Nitrogen and potassium fertilization on ‘Caipira’ and ‘BRS Princesa’ bananas in the Ribeira Valley

    Directory of Open Access Journals (Sweden)

    Edson S. Nomura

    Full Text Available ABSTRACT ‘BRS Princesa’ (AAAB and ‘Caipira’ (AAA banana cultivars have similar sensorial features in comparison to the ‘Maçã’ banana. They are resistant to Panama disease, which allows them to grow in the Ribeira Valley, the largest banana plantation area in the São Paulo State. However, there is no information on how to fertilize crop under these edaphoclimatic conditions. This study aimed to evaluate the development and production of ‘Caipira’ and ‘BRS Princesa’ bananas, by applying four fertilization doses of N and K2O (no fertilization; 175 and 285 kg ha-1 year-1; 350 and 570 kg ha-1 year-1; 525 and 855 kg ha-1 year-1. The most adequate fertilizer recommendation for ‘Caipira’ and ‘BRS Princesa’ cultivars was 150% of the standard recommendation for banana (525 kg ha-1 year-1 of N and 855 kg ha-1 year-1 of K2O in both production cycles, promoting adequate growth and production, since most of the evaluated characteristics showed linear responses with the increase in the fertilization doses. ‘Caipira’ and ‘BRS Princesa’ require higher amounts of N and K than that recommended for the banana crop in the São Paulo State, in order to express their productive potential.

  17. Impactos do sistema agrícola itinerante sobre os solos de remanescente de Mata Atlântica com uso e ocupação por comunidades quilombolas no Vale do Ribeira (São Paulo, Brasil)

    OpenAIRE

    Alexandre Antunes Ribeiro Filho

    2015-01-01

    Esta tese é um estudo de Ecologia Humana realizado no contexto de duas comunidades remanescentes de quilombo da região do Vale do Ribeira (Médio Ribeira, SP). Portanto, avalia as interações socioambientais entre as comunidades humanas e as biológicas que constituem o bioma Mata Atlântica na região. Especificamente, esta interação é investigada a partir da dinâmica da fertilidade dos solos, a qual é um subsídio fundamental para o estabelecimento e a manutenção da atividade agrícola quilombola ...

  18. Altos custos financeiros do trauma vascular

    Directory of Open Access Journals (Sweden)

    Ricardo Costa-Val

    Full Text Available OBJETIVO: Demonstrar o custo e impacto financeiro referente à primeira abordagem cirúrgica das lesões vasculares em pacientes admitidos no Hospital João XXIII/FHEMIG, entre os anos de 2004 a 2006. MéTODOS: Trata-se de um estudo com aprovação ética, retrospectivo, de coorte e descritivo realizado a partir da auditoria de contas hospitalares referentes a 70 prontuários catalogados pelo Serviço de Trauma Cardiovascular. RESULTADOS: Cinco (7,14% prontuários foram excluídos por má qualidade técnica. O valor monetário repassado pelo Sistema Único de Saúde e pelo setor privado foram de R$ 103.614,96 (US$ 60.949,97 e de R$ 185.888,21 (US$ 109.346,0, respectivamente, implicando em defasagem potencial de 44%. Houve correlação direta entre custos e topografia anatômica das lesões e exponencial em relação às variáveis hemoderivados e próteses vasculares. CONCLUSÃO: Este estudo corrobora os altos custos do trauma vascular e fortalece a importância da auditoria de contas para as tomadas de decisões médicas.

  19. New Sm-Nd isotopic data from the Southern Aracuai-Ribeira belt: Parabaiba Do Sul group and associated granitic intrusions

    International Nuclear Information System (INIS)

    Medeiros, Silvia Regina de; Wiedemann, Cristina Maria

    2001-01-01

    The Aracuai-Ribeira belt is a Neoproterozoic orogenic belt extending along the Brazilian Coast, bordering the eastern margin of the Sao Francisco craton (Pedrosa Soares et al., in press). In this work we start unveiling the magmatic source characteristics of the southern Espirito Santo segment of this belt through the use of new Sm-Nd data were obtained from exactly the same sample which Sollner et al. (1991), took their U-Pb and Rb-Sr measurements (the major isotopic informations available up to now) allowing thus a correlation with this previous geochronologic work, contributing for an improvement of the evolution model of the whole belt (au)

  20. Do Convento de Jesus, na Ribeira Grande (S. Miguel), no século XVII : as cartas de dote para freira

    OpenAIRE

    Gonçalves, Maria Margarida de Sá Nogueira Lalanda

    1995-01-01

    "Em 1555 a vila da Ribeira Grande é contemplada com a fundação do terceiro mosteiro de Clarissas erigido na ilha de S. Miguel: trata-se do Convento de Jesus, que se segue cronologicamente ao de Santo André, em Vila Franca do Campo (existente desde 1533, quando a sua primitiva comunidade se transferiu da casa edificada sobre as rochas costeiras de Vale de Cabaços, hoje Caloura, para a primeira «capital» da ilha) e ao de Nossa Senhora da Esperança, em Ponta Delgada (criado em 1541). [...]"

  1. Le Bassin de Ribeira Seca de Santiago, Cap Vert: une gestion basée sur l´approche GIRE

    Directory of Open Access Journals (Sweden)

    Januário da Rocha Nascimento

    2014-02-01

    Full Text Available Dans cet article, l´auteur caractérise l´eau et l´agriculture des îles du Cap Vert et analyse les défis del´eau après la construction du barrage de Poilao dans la Vallée de Ribeira Seca, sur l´île de Santiago,en se servant de l´approche GIRE (Gestion Intégrée des Ressources en Eau. Au niveau de la législation,il s´avère nécessaire de proposer de nouvelles lois, décrets et règlements qui soient en accord avecnotre réalité, en opposition à un important lot d´instruments juridiques inapplicables, obsolètes et decompréhension difficile. La construction du barrage de Poilão a produit des impacts environnementaux,socio-économiques et sur l´irrigation. Il s´agit de trouver un modèle de gestion qui s´adapte à la réalitédu Cap Vert et de l´île de Santiago, regroupant tous les partenaires pour une gestion durable de lavallée de Ribeira Seca et qui puisse servir d´exemple aux futurs barrages à construire.In this article, the author characterizes the water and agriculture of the islands of Cape Verde andanalyzes the challenges in the water after the dam construction Poilao in the Valley of Ribeira Seca,on the island of Santiago, using the IWRM (Integrated Water Resources Management approach. Interms of legislation, it is necessary to propose new laws, decrees and regulations that are consistentwith our reality, as opposed to a large batch of inapplicable legal instruments obsolete and difficult tounderstand. The construction of the dam has produced Poilão environmental, socio-economic impactsand irrigation. It is to find a model that fits the reality of Cape Verde and Santiago Island, involvingall partners for the sustainable management of the valley of Ribeira Seca and that can serve as anexample to future to build dams.

  2. Criterios para identificar patolog?as de alto costo en Colombia

    OpenAIRE

    Cuenta de alto costo, MinSalud

    2010-01-01

    Al identificar posibles pacientes de alto costo se debe definir si existen caracter?sticas que determinan su comportamiento como pacientes de alto costo, para definir si dicha patolog?a puede considerarse como Enfermedad de Alto Costo en Colombia.

  3. Soil and water conservation strategies and impact on sustainable livelihood in Cape Verde - Case study of Ribeira Seca watershed

    Science.gov (United States)

    Baptista, I.; Ferreira, A. D.; Tavares, J.; Querido, A. L. E.; Reis, A. E. A.; Geissen, V.; Ritsema, C.; Varela, A.

    2012-04-01

    Cape Verde, located off the coast of Senegal in western Africa, is a volcanic archipelago where a combination of human, climatic, geomorphologic and pedologic factors has led to extensive degradation of the soils. Like other Sahelian countries, Cape Verde has suffered the effects of desertification through the years, threatening the livelihood of the islands population and its fragile environment. In fact, the steep slopes in the ore agricultural islands, together with semi-arid and arid environments, characterized by an irregular and poorly distributed rainy season, with high intensity rainfall events, make dryland production a challenge. To survive in these fragile conditions, the stabilization of the farming systems and the maintenance of sustainable yields have become absolute priorities, making the islands an erosion control laboratory. Soil and water conservation strategies have been a centerpiece of the government's agricultural policies for the last half century. Aiming to maintain the soil in place and the water inside the soil, the successive governments of Cape Verde have implemented a number of soil and water conservation techniques, the most common ones being terraces, half moons, live barriers, contour rock walls, contour furrows and microcatchments, check dams and reforestation with drought resistant species. The soil and water conservation techniques implemented have contributed to the improvement of the economical and environmental conditions of the treated landscape, making crop production possible, consequently, improving the livelihood of the people living on the islands. In this paper, we survey the existing soil and water conservation techniques, analyze their impact on the livelihood condition of the population through a thorough literature review and field monitoring using a semi-quantitative methodology and evaluate their effectiveness and impact on crop yield in the Ribeira Seca watershed. A brief discussion is given on the cost and

  4. Casas de altos en Concepción

    Directory of Open Access Journals (Sweden)

    Rodrigo Fischer Pérez

    1990-06-01

    Full Text Available La casa de altos es una construcción eminentemente urbana. Pareada junto a otras construcciones, va formando bordes continuos, cuyos primeros pisos son generalmente comerciales y los superiores habitacionales.

  5. Diseño de una Fuente de Alto Voltaje

    Directory of Open Access Journals (Sweden)

    José Enrique Eirez Izquierdo

    2013-10-01

    Full Text Available Este documento presenta las experiencias en el diseño de una fuente de alto voltaje, basada en multiplicadores de media onda. La fuente garantizará un voltaje de salida en el orden de 102 V y una corriente en el orden de 10-3 A. Se muestran y analizan resultados experimentales encaminados a su aplicación en la alimentación de un generador de pulsos de alto voltaje.

  6. Variability in chemical composition of Vitis vinifera cv Mencía from different geographic areas and vintages in Ribeira Sacra (NW Spain).

    Science.gov (United States)

    Vilanova, M; Rodríguez, I; Canosa, P; Otero, I; Gamero, E; Moreno, D; Talaverano, I; Valdés, E

    2015-02-15

    A chemical study was conducted from 2009 to 2012 to examine spatial and seasonal variability of red Vitis vinifera Mencía located in different geographic areas (Amandi, Chantada, Quiroga-Bibei, Ribeiras do Sil and Ribeiras do Miño) from NW Spain. Mencía samples were analysed for phenolic, (flavan-3-ols, flavonols, anthocyanins, acids and resveratrol), nitrogen (TAC, TAN, YAN and TAS) and volatiles compounds (alcohols, C6 compounds, ethyl esters, terpenes, aldehydes, acids, lactones, volatile phenols and carbonyl compounds) by GC-MS and HPLC. Results showed that the composition of Mencía cultivar was more affected by the vintage than the geographic area. The amino acid composition was less affected by both geographic origin and vintage, showing more varietal stability. Application of Principal Component Analysis (PCA) to experimental data showed a good separation of Mencía grape according to geographical origin and vintages. PCA also showed high correlations between the ripening ratio and C6 compounds, resveratrol and carbonyl compounds. Copyright © 2014 Elsevier Ltd. All rights reserved.

  7. Chemical composition of deep hydrothermal fluids in the Ribeira Grande geothermal field (São Miguel, Azores)

    Science.gov (United States)

    Carvalho, M. R.; Forjaz, V. H.; Almeida, C.

    2006-08-01

    The Ribeira Grande geothermal field is a water-dominated geothermal system, located within Água de Pau/Fogo Volcano in the central part of the São Miguel Island. This geothermal system is exploited for energy production by wells sustaining two power plants. The wells produce from a formation of pillow lavas divided into different aquifers, with a fairly isothermal zone from 800 to 1300 m in depth, where reservoir temperature reaches 230 to 245 °C. Below the depth of 1300 m there is a slight temperature reversal. The fluid produced has excess enthalpy and, separated at atmospheric pressure, is characterized by mineralization of sodium-chloride type up to 6-7 g/l, the concentration of dissolved silica varies between 450 and 650 mg/l and the pH ranges between 8 and 8.6. The gas phase is dominantly CO 2, at a concentration of 98% of NCG. The composition of the deep geothermal fluid was obtained by computer simulation, using the WATCH program, and was compared with the composition of the bottom-hole samples. The approximations, in this simulation, were considered the single- and multi-step steam separation. The reference temperatures were based on: (i) the measured temperature in wells; (ii) the Na/K geothermometric temperature and (iii) the enthalpy-saturation temperature. According to both the measured and geothermometric temperatures, the deep fluid of the wells has two phases with a steam fraction up to 0.34, at higher well discharges. The measured enthalpy is always greater than the calculated enthalpy. The calcite equilibrium indicates scaling, since the fluid is flashing, around 2.28 mg/l CaCO 3 at the maximum discharge. The geothermal wells exploit three different aquifers, the lower of which is liquid and slightly colder than the upper ones. The intermediate is a two-phase aquifer with a steam fraction up to 0.081. The upper aquifer is probably of steam phase. The main differences between the aquifers are the temperature and boiling; both enthalpy and

  8. Liderazgo servidor y equipos de alto desempeño

    OpenAIRE

    Mejía Villegas, Estefanía

    2015-01-01

    El objetivo de este ensayo es mostrar cómo el liderazgo servidor influye positivamente en el desarrollo de los equipos de alto desempeño. En el ensayo se desarrollan la temática del liderazgo servidor y su principal objetivo, a la vez que se describen las características de un equipo de alto desempeño y sus etapas de desarrollo, cómo son influenciadas por el liderazgo servidor y cómo este modelo puede cumplir con sus requerimientos. 

  9. Technical and scientific report of the Alto project; Rapport scientifique et technique du projet ALTO

    Energy Technology Data Exchange (ETDEWEB)

    Essabaa, S.; Gardes, D.; Grialou, D.; Ibrahim, F.; Le Scornet, J.C

    2002-07-01

    The Alto project means the installation of an electron linear accelerator inside the experimental area of the tandem accelerator of the nuclear physics institute of Orsay (IPNO, France). This linear accelerator comes from CERN where it was operating as a pre-injector for LEP. This equipment will allow IPNO'teams to perform fast kinetics studies in a domain different from that of ELYSE accelerator. The time resolution will not be as high as that of ELYSE (picosecond) but will be sufficient (microsecond) to produce free radicals in aqueous and gaseous media. The main expectations of this installation can be classified according 3 axis: 1) basic research (mainly the study of nuclear matter through photo-fission, 2) research and development of accelerators (by providing a test bench for new high frequency systems and superconducting components), and 3) applied research for industry concerning: biochemistry under irradiation, radiation sensibility, DNA breaking, food and drug sterilization and behaviour of electronic components under irradiation. This rapport details the research program that could be achieved with this equipment, describes its contributions in terms of economic development, cooperation with industry, student training, and specifies the needed investment and the operating and maintenance costs. (A.C.)

  10. The utilization of geochemical parameters for the environmental monitoring of the Nuclear Power Center of Angra I, Ribeira Bay, Rio de Janeiro, Brazil

    International Nuclear Information System (INIS)

    Bidone, E.D.; Carmo Lima, S. do.

    1984-01-01

    In order that a geochemical balance be as complete as possible and thus, reach predictive values for toxic chemical dispersion, an understanding of the hydrological, sedimentological and geological contexts is fundamental. The dispersion of a polluent (in this case radionuclides) is dependent, in part, on its chemical properties and its interaction by sorption and desorption from solid particles (in particular, sediments). This interaction needs to be incorporated in dispersion models and can influence the passage of a pollutant along the food chain. In the case of Ribeira Bay, near the nuclear power center of Angra I, it was observed, through the analysis of sedimentological and geochemical parameters (TOC, TSS, chemical and mineralogical compositions, and granularity): an increase in absorption capacity of surface sediments owing to a homogeneous grain size distribution and a varying clay composition; a possibility of remobilization and transfer of particulate material to areas outside the bay. (Author) [pt

  11. Sedimentological, textural, mineralogical and geochemical study of surface sediments and suspension material in Baia da Ribeira, Angra dos Reis, RJ, Brazil

    International Nuclear Information System (INIS)

    Lima, Samuel do Carmo

    1985-01-01

    The geochemistry dispersion of the metals in aquatic environment is related to the physical chemistry proprieties of these elements as to their interaction by sorption on and desorption from solid particles. These interaction must be understood within the environmental dynamic, with its hydrological, sedimentological, chemical, physical and biological processes that may take the toxic elements (stables metals and radionuclides) to the bio alimentary chain. It was observed at the Ribeira Bay, its hydrodynamic behaviour through the suspension material and particulate organic carbon dispersion. And, through the textural, mineralogical and chemical parameters it was observed the behaviour of the geochemistry processes of the sedimentary materials and the influence that they may submit to the metals dispersion. (author)

  12. Growth rates in modern speleothems from Santana Cave, Brazil, by the 210Pb-method

    International Nuclear Information System (INIS)

    Bonotto, D.M.; Karmann, I.; Baskaran, M.M.

    2012-01-01

    The Santana Cave is located at the Upper Ribeira Touristic State Park (PETAR-Parque Estadual Turístico do Alto Ribeira) in southern São Paulo State, Brazil. This paper describes 210 Pb activity concentration data in soda straw stalactites samples collected at Salão das Flores in Santana Cave that is a fossil tributary of the cave river. Non-expensive alpha counting following some analytical steps for extracting and depositing 210 Po were used for providing the 210 Pb data. In the analyzed samples, 210 Pb values of increasingly older samples fitted an exponential curve, thus suggesting that the production of 210 Pb has been constant with time. Also, the near-ideal fit indicated that the growth was uniform and there was no break in the continuous growth. The soda straw growth rates were determined from the best fit to the exponential curve through the 210 Pb activity concentration. The results of the measurements allowed estimate a longitudinal rate corresponding to 1.3 mm/yr and a lateral rate of 0.01 mm/yr, which permitted calculate times of 70 years and 317–498 years for their formation, respectively. The lateral growth rate is compatible with values from studies of chemical weathering rates held under laboratory and natural conditions.

  13. CALIFA, the Calar alto legacy integral field area survey

    DEFF Research Database (Denmark)

    Husemann, B.; Jahnke, K.; Sánchez, S. F.

    2013-01-01

    We present the first public data release (DR1) of the Calar Alto Legacy Integral Field Area (CALIFA) survey. It consists of science-grade optical datacubes for the first 100 of eventually 600 nearby (0.005 < z < 0.03) galaxies, obtained with the integral-field spectrograph PMAS/PPak mounted on th...... the available interfaces and tools that allow easy access to this first publicCALIFA data at http://califa.caha.es/DR1....

  14. Unraveling the tectonic evolution of a Neoproterozoic-Cambrian active margin in the Ribeira Orogen (Se Brazil): U-Pb and Lu-Hf provenance data

    Energy Technology Data Exchange (ETDEWEB)

    Fernandes, Gabriel Lamounier de F. [Servico Geologico do Estado do Rio de Janeiro (DRM-RJ), Niteroi, RJ (Brazil); Schmitt, Renata; Bongiolo, Everton M.; Mendes, Julio [Universidade Federal do Rio de Janeiro (UFRJ), RJ (Brazil); Basei, Miguel S. [Universidade de Sao Paulo (USP), SP (Brazil)

    2015-07-01

    Full text: The Neoproterozoic-Ordovician Central Ribeira Orogen, in SE Brazil, presents two contrasting tectonic domains in its southern portion: (a) The Arc Domain constituted of Neoproterozoic to Paleozoic magmatic rocks and low P-high T metamorphic para (Sao Fidelis Group) - and ortho- derived units (in Oriental Terrane); and (b) The Basement Domain, constituted of a Paleoproterozoic and Neoproterozoic medium P-high T metamorphic para (Palmital-Buzios Succession)- and ortho-derived units (in Cabo Frio Tectonic Domain). Our work focuses on paraderived rocks sequences from both domains. The provenance analysis using U-Pb and Lu-Hf in zircon grains is presented here as an effective tool to unravel the paleogeography and nature of the pre-collisional sedimentary basins. We performed 505 analyses (U-Pb) on detrital zircon grains and some metamorphic overgrowths from six paragneiss samples. Besides, 141 analyses (Lu-Hf) in six samples only on the detrital zircon grains domains. All samples present a main peak from Neoproterozoic sources (750-570 Ma) and the other minor peak in the Stenian/Tonian periods (1200-850Ma), this indicate an orogenic contribution for this basin. Scarce register from the Mesoproterozoic and two peaks in the Archean/Paleoproterozoic (2.6 and 1.9 Ga) are recognized as a contribution from an ancient continent. The Lu-Hf data reveals a juvenile source for the detrital zircon grains from Buzios Succession while Palmital and Sao Fidelis Group units show a main crustal signature for their detrital zircon population. Based on the U-Pb and Lu-Hf data presented here, plus petrological data, geological correlations, and compilation of data from literature, we propose a tectonic model for the origin of para-derived rocks from the eastern part of the Ribeira Orogen. Starting with an extensional environment of ca. 600 Ma in a back-arc basin (Buzios succession deposition) and continuing as an active margin between 570 and 550 Ma in the fore-arc and prism

  15. Formation of processes erosion associated with the use and occupation of soil in the Ribeira river basin, city of Santa Rita / PB | Formação de erosão de processos associada ao uso e ocupação do solo na bacia do rio Ribeira, cidade de Santa Rita / PB

    Directory of Open Access Journals (Sweden)

    Caio Lima dos Santos

    2016-06-01

    Full Text Available The way the man has appropriated natural resources, has been revealed as the source of many problems in the environment, which has been reflected directly in the depletion of natural resources and quality of life. The erosion and loss of soil are part of these degenerative processes of the natural landscape. The watershed of the river Ribeira, located in Santa Rita, Paraíba State, is a current example of such processes that are directly associated with forms of land use. Actions arising mainly from the extensive cultivation of cane sugar has been revealed through the development of geomorphological processes that mark the landscape through erosional features, such as small fillets, grooves, and gully, plus a large amount of alluvial fans that protrude over the lowlands often silted water bodies.

  16. Etnoecologia e etnobotânica da palmeira juçara (Euterpe edulis Martius em comunidades quilombolas do Vale do Ribeira, São Paulo Ethnoecology and ethnobotany of the juçara palm (Euterpe edulis Martius in "quilombola" communities of the Ribeira River Valley, São Paulo

    Directory of Open Access Journals (Sweden)

    Renata Moreira Barroso

    2010-06-01

    Full Text Available As comunidades quilombolas são consideradas comunidades negras rurais formadas por descendentes de africanos escravizados. No Vale do Ribeira, uma das regiões mais pobres do estado de São Paulo, estas comunidades vivem da agricultura de subsistência e principalmente da coleta do palmito juçara para complemento da renda familiar. A palmeira juçara possui importante papel ecológico e econômico para a Floresta Atlântica e para as comunidades rurais locais. O objetivo geral deste trabalho foi investigar aspectos etnoecológicos e etnobotânicos da palmeira juçara (Euterpe edulis Martius em comunidades quilombolas do Vale do Ribeira, SP. A investigação se deu em sete comunidades quilombolas através da aplicação de 25 entrevistas semi-estruturadas e da realização de uma oficina de identificação dos animais consumidores de frutos da palmeira. Também foram realizadas coletas e identificação de visitantes florais. Os quilombolas entrevistados demonstraram um detalhado conhecimento ecológico local sobre a palmeira juçara, principalmente a relação da biodiversidade animal associada à espécie. Neste trabalho a etnoecologia e a etnobotânica mostram-se ferramentas importantes no levantamento participativo do conhecimento ecológico local do E. edulis que pode ser considerado no manejo e na conservação da espécie na Floresta Atlântica."Quilombola" communities are distributed all over Brazil. They are composed of the descendents of African slaves. In the Ribeira River Valley, one of the poorest regions in São Paulo state, they practice subsistence agriculture and extract plant resources from the environment, especially the juçara palm (Euterpe edulis Martius, a species that contributes to "quilombola" income. The juçara palm has special ecological and economic importance for "quilombolas". The main aim of this study was to investigate ethnobotanical and ethnoecological aspects of the juçara palm in "quilombola" communities

  17. Use of Pb and Sr isotopes on the determination of lead mineralization sources from Ribeira valley - Sao Paulo and Parana states

    International Nuclear Information System (INIS)

    Tassinari, C.C.G.; Barbour, A.P.; Sato, K.; Daitx, E.C.

    1990-01-01

    A lead and strontium isotope study was carried out on galena, barite and calcite from Pb-Ag syngenetic stratiform (Perau type) and hydrothermal veins (Panela type) deposits from Vale do Ribeira region (Sao Paulo and Parana states). The leads from the Perau and Panelas type deposits have respectively isotope ratios (sup(206)Pb/ sup(204)Pb 16.157 to 16.505 amd 16.520 to 17.273; sup(207)Pb/ sup(204)Pb = 15.466 to 15.720 and 15.470 to 15.780 and sup(208)Pb/ sup(204)Pb = 36.370 to 36.763 and 37.043 to 38.243), that defined a Stacey and Kramers model ages mainly concentrate within 1.7-1.5Ga. A review of published Pb isotopic compositions for these deposits and considerations of new Sr isotope data and Pb results using plumbotectonics model, indicate that the Perau type mineralizations are related to the syngenetic process and the Pb are derived from upper crust with a short crustal residence time. For the Panelas type deposits the Pb and Sr isotope studies support the conclusion that the ores were emplaced during regional metamorphism and the Pb were derived from lithologically complex source which may include metasedimentary and basement rocks. (author)

  18. Geophysical perspective on the structural interference zone along the Neoproterozoic Brasília and Ribeira fold belts in West Gondwana

    Directory of Open Access Journals (Sweden)

    João Gabriel Motta

    Full Text Available ABSTRACT: The Brasília and Ribeira fold belts have been established in south-southwestern São Francisco Craton during the Brasiliano-Pan African orogeny (0.9-0.5 Ga - Tonian to Cambrian, and played an important role in West Gondwana continent assembly. The region is given by a complex regional fold and thrust belt superposed by shearing during the orogeny late times, with superposing stress fields forming a structural interference zone. These thrust sheets encompasses assemblies from lower- to upper-crust from different major tectonic blocks (Paranapanema, São Francisco, and newly created metamorphic rocks. Re-evaluation of ground gravity datasets in a geologically constrained approach including seismology (CRUST1 model and magnetic data (EMAG2 model unveiled details on the deep- crust settings, and the overall geometry of the structural interference zone. The Simple Bouguer Anomaly map shows heterogeneous density distribution in the area, highlighting the presence of high-density, high metamorphic grade rocks along the Alterosa suture zone in the Socorro-Guaxupé Nappe, lying amid a series of metasedimentary thrust scales in a regional nappe system with important verticalization along regional shear zones. Forward gravity modeling favors interpretations of structural interference up North into Guaxupé Nappe. Comparison to geotectonic models shows similarities with modern accretionary belts, renewing the discussion.

  19. 40Ar/39Ar ages (600-570 Ma of the Serra do Azeite transtensional shear zone: evidence for syncontractional extension in the Cajati area, southern Ribeira belt

    Directory of Open Access Journals (Sweden)

    Rômulo Machado

    2007-12-01

    Full Text Available This paper presents 40Ar/39Ar ages of the rocks from the Serra do Azeite transtensional shear zone in the southern part of the Ribeira belt, between the States of São Paulo and Paraná, and also discusses the regional correlations and the tectonic implications for other parts of the belt. The geochronological data suggest that transtensional deformation was active between 600 and 580 Ma (hornblende and muscovite apparent ages, respectively. This time span is considerably older than previous proposals for the period of activity of these structures (520-480 Ma in the northern segment of this belt and in the Araçuaí belt. Kinematic analysis of the dated mylonites shows extensional structures with top-down movement to ESE compatible with structures found in other tectonic segments in the eastern portion of the Quadrilátero Ferrífero and in the Rio Doce Valley region. Our ages are situated in the same time interval defined for the alkaline magmatism of the Serra do Mar suite. We suggest that the regional tectonic framework was developed during continental-scale extension. This process has been coeval with convergent strain in the adjacent Neoproterozoic shear zones of the Apiaí/Ribeira and Araçuaí belts, which make up significant segments of these belts. The available data show that these structures may not be simply related to post-orogenic gravitational collapse, but must involve a more complex process probably related to dynamic balance between crustal thickening and thinning during tectonic convergence, basin formation and exhumation processes.Este trabalho apresenta idades 40Ar/39Ar de rochas da Zona de Cisalhamento Transtrativa Sinistral da Serra do Azeite, situada na parte sul do cinturão Ribeira, entre os Estados de São Paulo e Paraná, bem como discute a correlação regional e as implicações tectônicas com outras partes do cinturão. Os dados geocronológicos sugerem que a deformação extensional foi ativa entre 600 e 580 Ma

  20. Blood feeding patterns of Nyssomyia intermedia and Nyssomyia neivai (Diptera, Psychodidae in a cutaneous leishmaniasis endemic area of the Ribeira Valley, State of São Paulo, Brazil

    Directory of Open Access Journals (Sweden)

    Ana Maria Marassa

    2013-09-01

    Full Text Available Introduction The aim of this study was to identify the blood feeding sources of Nyssomyia intermedia (Ny. intermedia and Nyssomyia neivai (Ny. neivai, which are Leishmania vectors and the predominant sandfly species in the Ribeira Valley, State of São Paulo, Brazil, an endemic area for cutaneous leishmaniasis. Methods Specimens were captured monthly between February 2001 and December 2003 on a smallholding and a small farm situated in the Serra district in the Iporanga municipality. The blood meals of 988 engorged females were tested using the avidin-biotin immunoenzymatic enzyme-linked immunosorbent assay (ELISA. Seven blood meal sources were investigated: human, dog, chicken, bovine, pig, horse and rat. Results The results showed that among the females that fed on one or more blood sources, the respective percentages for Ny. intermedia and Ny. neivai, respectively, were as follows: human (23% and 36.8%, pig (47.4% and 26.4%, chicken (25.7% and 36.8% and dog (3.9% and 0%, and the differences in the blood sources between the two species were statistically significant (p = 0.043. Conclusions Both species had predominant reactivity for one or two blood sources, and few showed reactivity indicating three or four sources. Many different combinations were observed among the females that showed reactivity for more than one source, which indicated their opportunistic habits and eclecticism regarding anthropic environmental conditions.

  1. The tectono-magmatic evolution of the occidental terrane and the Paraiba do Sul Klippe within the Neoproterozoic Ribeira orogenic Belt, Southeastern Brazil

    International Nuclear Information System (INIS)

    Valladares, Claudia Sayao; Duarte, Beatriz Paschoal; Heilbron, Monica; Ragatky, Diana

    2000-01-01

    The occidental Terrane is envisaged as the eastern/southeastern reworked margin of the Sao Francisco/Rio de la Plata plate associated with and E-trending subduction under the Congo plate. The Paraiba do Sul Klippe is part of the Oriental Terrane, envisaged as a portion of the Congo plate. A collisional-stage resulted in intense westward deformation of the Occidental Terrane under intermediate pressure metamorphism (syn-D1+D2 events). A late-collisional stage resulted in subvertical folding and steep shear zones (D3 event). Both stages were associated with voluminous crustal-derived granites. U-Pb and Sm-Nd geochronology as well as geochemical and structural data point to three magmatic episodes: a syn-collisional stage 1; a syn-collisional stage 2; and a late-collisional stage. This paper presents a magmatic evolutionary model for this crustal segment of the Ribeira orogenic belt based on new geological data of Brasiliano granites and data available in the literature. (author)

  2. Soil and Water Conservation Strategies in Cape Verde (Cabo Verde in Portuguese and Their Impacts on Livelihoods: An Overview from the Ribeira Seca Watershed

    Directory of Open Access Journals (Sweden)

    Isaurinda Baptista

    2015-01-01

    Full Text Available Severe land degradation has strongly affected both people’s livelihood and the environment in Cape Verde (Cabo Verde in Portuguese, a natural resource poor country. Despite the enormous investment in soil and water conservation measures (SWC or SLM, which are visible throughout the landscape, and the recognition of their benefits, their biophysical and socioeconomic impacts have been poorly assessed and scientifically documented. This paper contributes to filling this gap, by bringing together insights from literature and policy review, field survey and participatory assessment in the Ribeira Seca Watershed through a concerted approach devised by the DESIRE project (the “Desire approach”. Specifically, we analyze government strategies towards building resilience against the harsh conditions, analyze the state of land degradation and its drivers, survey and map the existing SWC measures, and assess their effectiveness against land degradation, on crop yield and people’s livelihood. We infer that the relative success of Cape Verde in tackling desertification and rural poverty owes to an integrated governance strategy that comprises raising awareness, institutional framework development, financial resource allocation, capacity building, and active participation of rural communities. We recommend that specific, scientific-based monitoring and assessment studies be carried out on the biophysical and socioeconomic impact of SLM and that the “Desire approach” be scaled-up to other watersheds in the country.

  3. Amplificador de Potencia de Alto Rendimiento para Transmisores EER

    OpenAIRE

    Ortega González, Francisco Javier; Gimeno Martín, Alejandro; Pardo Martin, José Manuel; Benavente Peces, César

    2008-01-01

    Se presenta un amplificador de potencia de alto rendimiento específicamente diseñado para aplicaciones EER (Envelope Elimination Restoration) en transmisores de HF. El amplificador se compone de dos subsistemas: Un amplificador clase-E de banda ancha para HF (B = 40%, POUT = 50W @ 7.5 MHz, ηOV > 90%) excitado por un driver también de banda ancha que amplifica la componente de fase de la señal y un amplificador de envolvente derivado de un amplificador clase-D de audio (o clase-S) que presenta...

  4. Caracterização hidráulica, hidrológica e de transporte sólido do evento de 20 de fevereiro de 2010 na Ribeira de João Gomes - Ilha da Madeira

    OpenAIRE

    Castro, João Nélio Remêsso

    2011-01-01

    O presente trabalho surge em resultado do evento de 20 de Fevereiro de 2010, com o objectivo de caracterizar a bacia hidrográfica da Ribeira de João Gomes, nas suas vertentes hidráulicas, hidrológicas e de transporte sólido. Inicialmente este trabalho relata as condições climáticas, geológicas e hidrológicas da ilha da Madeira, inclusive nos recursos hídricos e nas situações hidrológicas extremas. Em seguida é apresentado uma breve cronologia dos eventos aluviais presentes na ilha da Madei...

  5. Biological and morphological characteristics of Schistosoma mansoni from Ribeira Valley, State of São Paulo, Brazil: I - susceptibility of Biomphalaria tenagophila snail to sympatric S. mansoni strain Características biológicas e morfológicas de cepa paulista de Schistosoma mansoni do Vale do Ribeira: I - suscetibilidade de Biomphalaria tenagophila do Vale do Ribeira, SP, a cepa simpátrica de Schistosoma mansoni

    Directory of Open Access Journals (Sweden)

    Ana Cristina Figueiredo

    1992-06-01

    Full Text Available In the São Paulo State, Brazil, where the Biomphalaria tenagophila is the intermediate host, the Ribeira Valley is an important endemic schistosomiasis mansoni area. During last eleven years there has been intense control measures focusing on schistosomiasis. The efforts have been concentrated in the municipalities of Pedro de Toledo and Itariri. We determined the susceptibility of B. tenagophila to sympatric strain of S. mansoni, both recently isolated from Itariri field. In 1988, this strain was isolated and maintained in the experimental model: Swiss mice - sympatric B. tenagophila. The second generation of the worm was evaluated. The snail were divided in the three groups of 60 snails each. One group was exposed to 1 miracidium and other to 10. The third group was the control. The mortality and the shedding of cercariae were checked during 78 days. After that, the positive snails were observed until they ceased to shed cercariae. The exposed molluscs showed mortality rates of 23% and 31% and infection indexes were of 8% and 60% to 1 and 10 miracidia respectively. The mortality was of 22% in the control group. The periods of shedding cercariae in the two groups were 82 and 104 days. We can conclude that B. tenagophila is an effective intermediate host to the sympatric strain of S. mansoni sympatric strainDentre as regiões do Estado de São Paulo, onde Biomphalaria tenagophila é hospedeira intermediária, o vale do Ribeira é área endêmica da esquistossomose. Nos últimos onze anos a endemia vem sendo intensamente controlada no vale, principalmente, nos municípios de Pedro de Toledo e Itariri. Estudamos a suscetibilidade de B. tenagophila de Itariri à linhagem simpátrica de Schistosoma mansoni, isolada do campo em 1988 e mantida no laboratório em camundongos suiço e B. tenagophila. Estudou-se a 2ª geração do trematódeo. Constituiram-se 3 grupos de 60 moluscos cada, sendo um grupo exposto a um miracídio e outro a 10 e um grupo

  6. New Sm/Nd and U/Pb geochronological constraints of the Archean to neoproterozoic evolution of the Amparo basement complex of the Central Ribeira Belt, Southeastern Brazil

    International Nuclear Information System (INIS)

    Fetter, A.H.; Hackspacher, P.C.; Ebbert, H.D; Dantas, E.L; Costa, A.C.D. da

    2001-01-01

    The Amparo Basement Complex is a distinctive collage of migmatitic tronjhemitetonalite- granodiorite (TTG) orthogneisses that represents the older basement exposures within the Central Ribeira Belt, a Late Neoproterozoic (ca. 600 Ma) collisional belt in southeastern Brazil. These basement gneisses are overlain by Mesoproterozoic to Neoproterozoic supracrustal sequences, and intruded by Neoproterozoic collisional granitoids. Pioneering Rb/Sr, Pb/Pb and K/Ar geochronological studies of the Amparo Complex, e.g. (Wernick et al., 1981; Wernick and Oliveira, 1986; Arthur, 1988; Tassinari, 1988; Campos Neto, 1991) provided some initial insights into the antiquity and geologic evolution of the complex, but little about the crustal evolution of the constituent gneisses. Furthermore, the susceptibility of these systems to partial isotopic resetting, left some doubt about the timing and true number of geologic events recorded by these polydeformed rocks. Recent Sm/Nd whole rock (Dantas et al., 2000) and new U/Pb single crystal zircon and monazite data obtained from the Amparo Complex, however, now furnish information on the crustal growth history of the basement and provide precise age constraints on the timing of events related to the geologic evolution of the complex. Based on these new data, it appears that the oldest rocks within the complex are polymigmatized tronjhemitic gneisses located near the town of Amparo. The oldest phase of this migmatite yields a U/Pb zircon age of 3,024 +/- 9 Ma. Sm/Nd data from this locale yields a Nd T(DM) model age of 3.28 Ga suggesting that the genesis of this crustal unit involved some input from yet older crust. Data from banded tonalitic gneisses collected ca. 50 km south of Amparo indicate that subsequent Archean crustal growth around the older core occurred around 2.77 Ga (U/Pb zircon age of 2,772 +/- 26 Ma. A Nd T(DM) model age of 3.02 Ga obtained from these tonalites also indicate enrichment from older crustal sources during their

  7. Shallow landslide stability computation using a distributed transient response model for susceptibility assessment and validation. A case study from Ribeira Quente valley (S. Miguel island, Azores)

    Science.gov (United States)

    Amaral, P.; Marques, R.; Zêzere, J. L.; Marques, F.; Queiroz, G.

    2009-04-01

    In the last 15 years, several heavy rainstorms have occurred in Povoação County (S. Miguel Island, Azores), namely in the Ribeira Quente Valley. These rainfall events have triggered hundreds of shallow landslides that killed tens of people and have been responsible for direct and indirect damages amounting to tens of millions of Euros. On the 6th March 2005 an intense rainfall episode, up to 160 mm of rain in less than 24 h, triggered several shallow landslides that caused 3 victims and damaged/blocked roads. The Ribeira Quente Valley has an area of about 9.5 km2 and is mainly constituted by pyroclastic materials (pumice ash and lapilli), that were produced by the Furnas Volcano explosive eruptions. To provide an assessment of slope-failure conditions for the 6th March 2005 rainfall event, it was applied a distributed transient response model for slope stability analysis. The adopted methodology is a modified version of Iversońs (2000) transient response model, which couple an infinite slope stability analysis with an analytic solution of the Richard's equation for vertical water infiltration in quasi-saturated soil. The validation was made on two different scales: (1) at a slope scale, using two distinct test sites where landslides were triggered; and (2) at the basin scale, using the entire landslide database and generalizing the modeling input parameters for the regional spatialization of results. At the slope scale, the obtained results were very accurate, and it was possible to predict the precise time of the slope failures. At the basin scale, the obtained results were very conservative, even though the model predicted all the observed landslide locations, in the 23.7% of the area classified as untable at the time of the slope failures. This methodology revealed to be a reasonable tool for landslide forecast for both temporal and spatial distributions, on both slope and regional scales. In the future, the model components will be integrated into a GIS

  8. Provenance of detrital zircons from the Ribeira and Dom Feliciano Belts, comparison with African equivalents and implications on western Gondwana amalgamation. Geological Society of London-2008

    International Nuclear Information System (INIS)

    Basei, M.; Frimmel, H.E.; Nutman, A.P.; Preciozzi, F.

    2005-01-01

    The geologic make-up of southern Brazil has been defined by processes related to the Brasiliano orogenic cycle and, in particular, to con tractional tectonic events that led to the amalgamation of different terranes, which culminated in the formation of Western Gondwana (Campos Neto and Figueiredo, 1995; Brito Neves and Cordani,1991; Brito Neves et al, 1999, Campos Neto, 2000). Polycyclic deformation and metamorphism that masked the characteristics, including the age records, of the protoliths were associated with the juxtaposition of these different terranes. Ophiolitic remains and magmatic arc roots signal the existence of fossil subduction and collision zones, whereas intense post-tectonic to an orogenic granitic magmatism marks the end of the orogenic cycle towards the end of the Neoproterozoic Era. U-Pb dating of domains within single zircon grains has proven to be a very powerful tool for the unraveling of the complex tecto no-thermal evolution as well as in characterizing the provenance of the original sediments. This is due to the high resistance to weathering and to high closure temperatures with respect to the U-Pb isotope system in zircon. Over the past decade, the standard technique for this analytical approach has become the analyses of U-Pb isotope ratios by SHRIMP,preceded by cathodoluminescence analysis (McClaren et al 1994). In this study, a set of 11 new SHRIMP analyses on detrital zircon grains from the major metasedimentary units of the Ribeira and Dom Feliciano Belts of the southeastern portion of South America is presented and the data are compared with available analyses for the Gariep Belt (Basei et al. 2005) and a new analysis for the Damara Belt. Combined with available Sm-Nd bulk rock isotope data, the results will form the basis for a revised tectonic model for the formation of Western Gondwana

  9. Provenance of detrital zircons from the Ribeira and Dom Feliciano Belts, comparison with African equivalents and implications on Western Gondwana amalgamation

    International Nuclear Information System (INIS)

    Basei, M.; Frimmel, H.E.; Nutman, A.P.; Preciozzi, F.

    2008-01-01

    The geologic make-up of southern Brazil has been defined by processes related to the Brasiliano orogenic cycle and, in particular, to con tractional tectonic events that led to the amalgamation of different terranes, which culminated in the formation of Western Gondwana (Campos Neto and Figueiredo, 1995; Brito Neves and Cordani, 1991; Brito Neves et al, 1999, Campos Neto, 2000). Polycyclic deformation and metamorphism that masked the characteristics, including the age records, of the protoliths were associated with the juxtaposition of these different terranes. Ophiolitic remains and magmatic arc roots signal the existence of fossil subduction and collision zones, whereas intense post-tectonic to an orogenic granitic magmatism marks the end of the orogenic cycle towards the end of the Neoproterozoic Era. U-Pb dating of domains within single zircon grains has proven to be a very powerful tool for the unraveling of the complex tecto no-thermal evolution as well as in characterizing the provenance of the original sediments. This is due to the high resistance to weathering and to high closure temperatures with respect to the U-Pb isotope system in zircon. Over the past decade, the standard technique for this analytical approach has become the analyses of U-Pb isotope ratios by SHRIMP, preceded by cathodoluminescence analysis (McClaren et al 1994). In this study, a set of 11 new SHRIMP analyses on detrital zircon grains from the major metasedimentary units of the Ribeira and Dom Feliciano Belts of the southeastern portion of South America is presented and the data are compared with available analyses for the Gariep Belt (Basei et al. 2005) and a new analysis for the Damara Belt. Combined with available Sm-Nd bulk rock isotope data, the results will form the basis for a revised tectonic model for the formation of Western Gondwana

  10. Geologic evolution of the Paraiba do Sul complex, in the central part of the Ribeira belt, based on the geochemistry and U-Pb geochronology studies

    International Nuclear Information System (INIS)

    Valladares, Claudia Sayao

    1996-01-01

    Aiming the definition of the Complexo Paraiba do Sul evolution, the work presents a geochronological approach by the U-Pb method, considered appropriate to study polideformed terrains. The minerals used to the U-Pb dating (zircon, titanite and monazite) provides information about the ages of rock generation and the successive geological events the rocks were submitted. The U-Pb geochronological approach is pioneer in the investigated area and two questions referent to the Complexo Paraiba do Sul evolution in the central part of the Ribeira belt, were the aim of this approach. The first of them refers to the crystallization epoch and the gneisses metamorphism, interpreted here like orthogneisses, called Unidade Quirino of the Complexo Paraiba do Sul. The second refers to the metamorphism ages and meta sedimentary unit deformation. Looking for the contribution to the Complexo Paraiba do Sul evolution understanding, this work presents the data based on the geologic map of this area, comprising part of the Folha Volta Redonda (1:50.000), including petrographic, structural and microtectonic studies. It also presents and discusses the results of: 17 U-Pb analysis in zircon and titanite of the Complexo Paraiba do Sul orthogneisses collection; 24 geochemical analysis of major, minor, trace elements and ETR of the same collection; an U-Pb analysis in titanite of the Unidade Sao Joao, 5 U-Pb analysis in titanites and/or monazites of granites and granitoids; 12 geochemical analysis including major, minor and trace elements and ETR, in granites and sills of leucogranites. Finally, the data achieved were integrated with the objective to elaborate an evolutive view of the Complexo Paraiba do Sul

  11. Diversions of the Ribeira river flow and their Influence on Sediment Supply in the Cananeia-Iguape Estuarine-Lagoonal System (SE Brazil)

    Science.gov (United States)

    Cornaggia, Flaminia; Jovane, Luigi; Alessandretti, Luciano; Alves de Lima Ferreira, Paulo; Lopes Figueira, Rubens C.; Rodelli, Daniel; Bueno Benedetti Berbel, Gláucia; Braga, Elisabete S.

    2018-04-01

    The Cananéia-Iguape system is a combined estuarine-lagoonal sedimentary system, located along the SE coast of Brazil. It consists of a network of channels and islands oriented mainly parallel to the coast. About 165 years ago, an artificial channel, the Valo Grande, was opened in the northern part of this system to connect a major river of the region, the Ribeira River, to the estuarine-lagoon complex. The Valo Grande was closed with a dam and re-opened twice between 1978 and 1995, when it was finally left open. These openings and closures of the Valo Grande had a significant influence on the Cananéia-Iguape system. In this study we present mineralogical, chemical, palaeomagnetic, and geochronological data from a sediment core collected at the southern end of the 50-km long lagoonal system showing how the phases of the opening and closure of the channel through time are expressed in the sedimentary record. Despite the homogeneity of the grain size and magnetic properties throughout the core, significant variations in the mineralogical composition showed the influence of the opening of the channel on the sediment supply. Less mature sediment, with lower quartz and halite and higher kaolinite, brucite, and franklinite, corresponded to periods when the Valo Grande was open. On the other hand, higher abundance of quartz and halite, as well as the disappearance of other detrital minerals, corresponded with periods of absence or closure of the channel, indicating a more sea-influenced depositional setting. This work represented an example of anthropogenic influence in a lagoonal-estuarine sedimentary system, which is a common context along the coast of Brazil.

  12. Feminicidios en la frontera chilena: el caso de Alto Hospicio

    Directory of Open Access Journals (Sweden)

    Ainhoa Vásquez Mejías

    2016-01-01

    Full Text Available Entre 1999 y el 2001, varias adolescentes desaparecieron en el norte de Chile y, posteriormente, fueron encontradas muertas. La novela Alto Hospicio (2008, de Rodrigo Ramos Bañados, recrea estos feminicidios desde la visión del cómplice del único inculpado por estos crímenes. En el presente artículo se plantea que el escritor utiliza la noción de frontera como aparato crítico, con el fin de desestabilizar barreras espaciales, simbólicas y textuales que se agrupan en cuatro ejes: Bolivia-Chile, santas-putas, racionalidad-locura, ficción-realidad. Así, la novela cuestiona y deconstruye los límites para hablarnos de estos feminicidios desde un punto indeterminado, que funciona como espejo de la incertidumbre e irresolución de este caso en la justicia chilena.

  13. Technical and scientific report of the Alto project

    CERN Document Server

    Essabaa, S; Grialou, D; Ibrahim, F; Le Scornet, J C

    2002-01-01

    The Alto project means the installation of an electron linear accelerator inside the experimental area of the tandem accelerator of the nuclear physics institute of Orsay (IPNO, France). This linear accelerator comes from CERN where it was operating as a pre-injector for LEP. This equipment will allow IPNO'teams to perform fast kinetics studies in a domain different from that of ELYSE accelerator. The time resolution will not be as high as that of ELYSE (picosecond) but will be sufficient (microsecond) to produce free radicals in aqueous and gaseous media. The main expectations of this installation can be classified according 3 axis: 1) basic research (mainly the study of nuclear matter through photo-fission, 2) research and development of accelerators (by providing a test bench for new high frequency systems and superconducting components), and 3) applied research for industry concerning: biochemistry under irradiation, radiation sensibility, DNA breaking, food and drug sterilization and behaviour of electro...

  14. EL ALTO MAGDALENA- COLOMBIA DE LA MANO CON ENERGIAS ALTERNATIVAS

    Directory of Open Access Journals (Sweden)

    Barragán-Alturo, Ancízar

    2013-12-01

    Full Text Available El afán por destruir un paradigma, que mantiene encadenados a los habitantes de Girardot y la región, a una compañía de distribución de la energía eléctrica con sus altos precios para el kilowatt-hora, ha inspirado la investigación CUNDINAMARCA DE LA MANO DE LAS ENERGIAS ALTERNATIVAS, demostrando por diversos caminos que el montaje de paneles solares para generación de energía eléctrica en las cubiertas de las casas es la energía alternativa para la solución de diversos problemas, entre ellos: los costos elevados, las fluctuaciones de voltaje, los cortes de energía, los daños en los electrodomésticos

  15. The Alto Moxoto Terrain in Eastern Paraiba ('Caldas Brandao Massif')

    International Nuclear Information System (INIS)

    Neves, Benjamim Bley de Brito; Campos Neto, Mario da Costa; Souza, Solange Lucena de; Schmus, William Randall Van; Fernandes, Tania Maria Gomes

    2001-01-01

    The Alto Moxoto Terrane (TAM), at the east of Paraiba State is mostly composed of sheared ortho gneisses, porphyritic granodioritic gneisses and it bears an imbricated sheet of Al-rich (garnet-biotite-sillimanite) gneisses, deeply affected by migmatization phenomena. This litho-structural assemblage is drawing a regional asymmetric anti formal structure, with its axial zone running parallel to the B R-230 highway (E-W trending). It is limited in both, north (Alto Pajeu terrane) and south (Rio Capibaribe terrane) sides by important shear zones, which are feather faults connected with the development of the Pernambuco lineament, to the southwest. The adopted designation of 'terrane' is based upon its singular geological features, in terms of lithological and structural characteristics, Paleoproterozoic in age and sharp limits with the different confining terranes. TAM is here considered as a mega-fragment of the Atlantica Super continent, that was built up by the Paleoproterozoic Collage ('Transamazonian') and that was preserved in the framework of West Gondwana (Brasiliano/Pan African Collage) as a 'terrane'. This terrane shows conspicuous continuity to the far interior of the province, to the southwestern part of Pernambuco State, and so doing, it demonstrates that the former designation of 'Caldas Brandao Massif must be ruled out, as obsolete for many reasons. Geochronological determinations using Rb-Sr, Sm-Nd and U-Pb methods confirm the Paleoproterozoic age of this terrane, with the presence of some Archean protoliths as well as the various degrees of structural reworking and isotopic reseting promoted by the Brasiliano Cycle. This cycle was responsible for some intrusive granites, for most of the general geological features, like usual informal limits and even the present shape of the TAM, a typical reworked 'basement inlier'. (author)

  16. The Alto Tiberina Near Fault Observatory (northern Apennines, Italy

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    Lauro Chiaraluce

    2014-06-01

    Full Text Available The availability of multidisciplinary and high-resolution data is a fundamental requirement to understand the physics of earthquakes and faulting. We present the Alto Tiberina Near Fault Observatory (TABOO, a research infrastructure devoted to studying preparatory processes, slow and fast deformation along a fault system located in the upper Tiber Valley (northern Apennines, dominated by a 60 km long low-angle normal fault (Alto Tiberina, ATF active since the Quaternary. TABOO consists of 50 permanent seismic stations covering an area of 120 × 120 km2. The surface seismic stations are equipped with 3-components seismometers, one third of them hosting accelerometers. We instrumented three shallow (250 m boreholes with seismometers, creating a 3-dimensional antenna for studying micro-earthquakes sources (detection threshold is ML 0.5 and detecting transient signals. 24 of these sites are equipped with continuous geodetic GPS, forming two transects across the fault system. Geochemical and electromagnetic stations have been also deployed in the study area. In 36 months TABOO recorded 19,422 events with ML ≤ 3.8 corresponding to 23.36e-04 events per day per squared kilometres; one of the highest seismicity rate value observed in Italy. Seismicity distribution images the geometry of the ATF and its antithetic/synthetic structures located in the hanging-wall. TABOO can allow us to understand the seismogenic potential of the ATF and therefore contribute to the seismic hazard assessment of the area. The collected information on the geometry and deformation style of the fault will be used to elaborate ground shaking scenarios adopting diverse slip distributions and rupture directivity models.

  17. The Alto Paraguay Alkaline Province: petrographic, geochemical and geochronological characteristics

    International Nuclear Information System (INIS)

    Velazquez Fernandez, Victor

    1996-01-01

    The Alto Paraguay Province is located at the border of the State of Mato Grosso do Sul and Paraguay, between the coordinates 21 deg 10 ' to 23 deg 25 ' of Southern latitude and 57 deg 10 ' to 58 deg 00 ' , having the city of Porto Murtinho as the main reference point. The geotectonic domain of the area is governed by the precambric units of the Southern extreme of the Amazonic craton which developed a long and accentuated activity, giving rise to folds and important faults, that in several cases seem to have exerted an effective control of the magmatic manifestations. Radiometric data indicate that the emplacement of the syenitic bodies took place in the Permo-Triassic period, with a major incidence in the interval 260-240 Ma, representing thus, an important phase of alkaline magmatic affinity associated to the Parana Basin which is believed is to be unique, since the other known areas (Central, Amambay and Rio Apa Provinces, Paraguay, Velasco Province, Bolivia) are considerably younger (140-120 Ma). Syenitic rocks from the Alto Paraguay Province show wide variation in the ratio 87 Sr/ 86 Sr (0.703361 - 0.707734). Excluding the Cerro Boggiani rocks (0.703837-0.707734), values for the nepheline syenites (0.703361-0.703672) general lower than those of the other syenites types. Alkaline syenites cover the interval 0.703510- 0.703872, while quartz syenites and syenogranites are 0.704562 and 0.707076, respectively. geologic evidence, in addition to petrographic, geochemical and isotopic (Sr) data, suggest that the syenitic rocks have been derived from an unique mantelic parental liquid, by fractional crystallization and assimilation processes, which are assumed to be occurred during the emplacement of the magma in the crust. (author)

  18. Spatial distribution of arboviral mosquito vectors (Diptera, Culicidae in Vale do Ribeira in the South-eastern Brazilian Atlantic Forest Distribuição espacial de mosquitos (Diptera, Culicidae vetores de arbovírus no Vale do Ribeira, sudeste da Mata Atlântica, Brasil

    Directory of Open Access Journals (Sweden)

    Gabriel Zorello Laporta

    2012-02-01

    Full Text Available Mosquitoes are vectors of arboviruses that can cause encephalitis and hemorrhagic fevers in humans. Aedes serratus (Theobald, Aedes scapularis (Rondani and Psorophora ferox (Von Humboldt are potential vectors of arboviruses and are abundant in Vale do Ribeira, located in the Atlantic Forest in the southeast of the State of São Paulo, Brazil. The objective of this study was to predict the spatial distribution of these mosquitoes and estimate the risk of human exposure to mosquito bites. Results of the analyses show that humans are highly exposed to bites in the municipalities of Cananéia, Iguape and Ilha Comprida. In these localities the incidence of Rocio encephalitis was 2% in the 1970s. Furthermore, Ae. serratus, a recently implicated vector of yellow fever virus in the State of Rio Grande do Sul, should be a target for the entomological surveillance in the southeastern Atlantic Forest. Considering the continental dimensions of Brazil and the inherent difficulties in sampling its vast area, the habitat suitability method used in the study can be an important tool for predicting the distribution of vectors of pathogens.Mosquitos são vetores de arbovírus que podem causar encefalites e febres hemorrágicas em humanos. Aedes serratus (Theobald, Aedes scapularis (Rondani, e Psorophora ferox (Von Humboldt são vetores potenciais de arbovírus e são abundantes no Vale do Ribeira, Mata Atlântica, sudeste do Estado de São Paulo, Brasil. O objetivo desse estudo foi inferir a distribuição espacial desses mosquitos e estimar o risco da exposição humana às picadas de mosquitos. Os resultados das análises indicaram que os humanos estão altamente expostos às picadas nos municípios de Cananéia, Iguape e Ilha Comprida. Nessas localidades a incidência de encefalite Rocio foi 2% na década de 1970. Adicionalmente, Ae. serratus, que foi recentemente implicado vetor do vírus da febre amarela no estado do Rio Grande do Sul, deveria ser alvo da

  19. ¿A qué atribuyen el alto rendimiento escolar los estudiantes de buen rendimiento escolar proveniente de liceos con altos indices de vulnerabilidad?

    OpenAIRE

    Morales, Mario; Sepúlveda, Martitza

    2016-01-01

    La presente investigación tiene como finalidad comprender desde las subjetividades de los participantes egresados de secundaria, provenientes de instituciones escolares con altos índices de vulnerabilidad, los principales factores que han contribuido en la obtención de su alto rendimiento escolar. Son varios los modelos que se han utilizados para explicar el abandono de los estudiantes en los primeros años de universidad (Ethington, 1990; St. John, Cabrera y Asker, 2000; Spady, 1970; Braxton,...

  20. The Alto Paraguay Alkaline Province: petrographic, geochemical and geochronological characteristics; Provincia alcalina Alto Paraguai: caracteristicas petrograficas, geoquimicas e geocronologicas

    Energy Technology Data Exchange (ETDEWEB)

    Velazquez Fernandez, Victor

    1996-12-31

    The Alto Paraguay Province is located at the border of the State of Mato Grosso do Sul and Paraguay, between the coordinates 21 deg 10{sup `}to 23 deg 25{sup `}of Southern latitude and 57 deg 10{sup `} to 58 deg 00{sup `}, having the city of Porto Murtinho as the main reference point. The geotectonic domain of the area is governed by the precambric units of the Southern extreme of the Amazonic craton which developed a long and accentuated activity, giving rise to folds and important faults, that in several cases seem to have exerted an effective control of the magmatic manifestations. Radiometric data indicate that the emplacement of the syenitic bodies took place in the Permo-Triassic period, with a major incidence in the interval 260-240 Ma, representing thus, an important phase of alkaline magmatic affinity associated to the Parana Basin which is believed is to be unique, since the other known areas (Central, Amambay and Rio Apa Provinces, Paraguay, Velasco Province, Bolivia) are considerably younger (140-120 Ma). Syenitic rocks from the Alto Paraguay Province show wide variation in the ratio {sup 87} Sr/{sup 86} Sr (0.703361 - 0.707734). Excluding the Cerro Boggiani rocks (0.703837-0.707734), values for the nepheline syenites (0.703361-0.703672) general lower than those of the other syenites types. Alkaline syenites cover the interval 0.703510- 0.703872, while quartz syenites and syenogranites are 0.704562 and 0.707076, respectively. geologic evidence, in addition to petrographic, geochemical and isotopic (Sr) data, suggest that the syenitic rocks have been derived from an unique mantelic parental liquid, by fractional crystallization and assimilation processes, which are assumed to be occurred during the emplacement of the magma in the crust. (author) 124 refs., 52 figs., 7 tabs.

  1. The Alto Paraguay Alkaline Province: petrographic, geochemical and geochronological characteristics; Provincia alcalina Alto Paraguai: caracteristicas petrograficas, geoquimicas e geocronologicas

    Energy Technology Data Exchange (ETDEWEB)

    Velazquez Fernandez, Victor

    1997-12-31

    The Alto Paraguay Province is located at the border of the State of Mato Grosso do Sul and Paraguay, between the coordinates 21 deg 10{sup `}to 23 deg 25{sup `}of Southern latitude and 57 deg 10{sup `} to 58 deg 00{sup `}, having the city of Porto Murtinho as the main reference point. The geotectonic domain of the area is governed by the precambric units of the Southern extreme of the Amazonic craton which developed a long and accentuated activity, giving rise to folds and important faults, that in several cases seem to have exerted an effective control of the magmatic manifestations. Radiometric data indicate that the emplacement of the syenitic bodies took place in the Permo-Triassic period, with a major incidence in the interval 260-240 Ma, representing thus, an important phase of alkaline magmatic affinity associated to the Parana Basin which is believed is to be unique, since the other known areas (Central, Amambay and Rio Apa Provinces, Paraguay, Velasco Province, Bolivia) are considerably younger (140-120 Ma). Syenitic rocks from the Alto Paraguay Province show wide variation in the ratio {sup 87} Sr/{sup 86} Sr (0.703361 - 0.707734). Excluding the Cerro Boggiani rocks (0.703837-0.707734), values for the nepheline syenites (0.703361-0.703672) general lower than those of the other syenites types. Alkaline syenites cover the interval 0.703510- 0.703872, while quartz syenites and syenogranites are 0.704562 and 0.707076, respectively. geologic evidence, in addition to petrographic, geochemical and isotopic (Sr) data, suggest that the syenitic rocks have been derived from an unique mantelic parental liquid, by fractional crystallization and assimilation processes, which are assumed to be occurred during the emplacement of the magma in the crust. (author) 124 refs., 52 figs., 7 tabs.

  2. Bird diversity and conservation of Alto Balsas (Southwestern Puebla, Mexico

    Directory of Open Access Journals (Sweden)

    Jorge E Ramírez-Albores

    2007-03-01

    Full Text Available Knowledge of the composition of the bird community in Alto Balsas (southwestern Puebla, Central Mexico is needed for management programs aiming at protection and conservation of bird species and their habitats I studied sites with tropical deciduous forest. Data were obtained during 1666 hours of field work in 238 days from March 1998 to September 2000. Six permanent transect (3.5 km long and 100 m wide; 30 to 40 ha in each transect were used to determine species richness in the study sites. The Shannon-Wiener diversity index was calculated for each site and Sorensen’s index was used to assess similarity between sites. One-way analysis of variance was used to test for differences between sites in species richness and diversity values. A total of 128 species were recorded, Tepexco (n = 75, H´= 3.76 and Puente Márquez (n = 61, H´= 3.62 were the sites that showed the greatest specific richness and diversity. However, species richness and diversity seasonally patterns were similar among sites (ANOVA p > 0.05, with highest diversity during the rainy season. Most species were resident; 42 were migrants. The avifauna was represented by 30 species associated with tropical deciduous forest and 12 from open habitats or heavily altered habitats. Insectivores were the best represented trophic category, followed by carnivores and omnivores. Rev. Biol. Trop. 55 (1: 287-300. Epub 2007 March. 31.Este estudio describe la diversidad avifaunística en sitios del Alto Balsas (suroeste de Puebla en el Centro de México y examina la variación en la diversidad de las especies de aves. El estudio fue llevado a cabo en sitios con presencia de bosque tropical caducifolio. Los datos fueron obtenidos durante 1666 horas de trabajo de campo en 238 días de Marzo 1998 a Septiembre 2000. Se realizaron seis transectos permanentes (de 3.5 km de longitud y 100 m de ancho; de 30 a 40 ha en cada transecto para determinar la riqueza de especies en los sitios de estudio. Se

  3. Ventaja de jugar en casa en voleibol de alto rendimiento

    Directory of Open Access Journals (Sweden)

    Rui Marcelino

    2009-01-01

    Full Text Available En este estudio se ha pretendido estudiar la ventaja en casa en el Voleibol de alto rendimiento, apoyándonos en las estadísticas de los partidos que más pueden explicar ese fenómeno. Se han analizado 65.949 acciones de juego seleccionadas de la Liga Mundial 2005. El instrumento de observación que se ha elaborado es una combinación de formato de campo con sistemas de categorías. Los datos se han obtenido mediante el "Volleyball Information System" y se han analizado mediante la prueba t de Student, y la prueba ji-cuadrado. Los resultados demuestran que hay ventaja en casa en Voleibol (57,5% de victorias jugando en casa. Las estadísticas del ataque (t= 2.49, p = 0.01, del servicio (t= -2.18, p= 0.03, de la recepción (t= 16.74, p<0.001 y de la distribución (t= 2.03, p= 0.04 muestran rendimientos superiores para los equipos que juegan en casa. No se han encontrado diferencias en el rendimiento del bloqueo (t= -0.25, p= 0.80 y la defensa (t= 0.11, p= 0.92 entre los juegos disputados en casa y los disputados fuera.

  4. Un centro ceremonial formativo en el Alto Piura

    Directory of Open Access Journals (Sweden)

    1989-01-01

    estilos diversos, cuya evolución temporal se puede seguir, tanto del punto de vista de las formas y técnicas decorativas como de la iconografía, abundante y diversificada. Estos datos, nuevos para la región, así como el análisis comparativo de los vestigios materiales, comprueban la existencia de contactos y relaciones con las demás zonas cercanas y particularmente la integración del Alto Piura a los sistemas ideológicos y religiosos más sureños. La implantación del sitio podría estar ligada a su ubicación geográfica, en el cruce de una vía de intercambio entre poblaciones costeras, andinas y selváticas, y de un camino norte-sur facilitando los contactos entre la costa norte peruana y la costa y los Andes ecuatorianos. Su ocupación parece testimoniar una situación original -caracterizada por la presencia de representantes de varias tradiciones culturales- que se mantendrá e igualmente singularizará este sector del Alto Piura durante las épocas posteriores. Research carried out since 1986 on the archaeological site of Cerro Ñañañique (Chulucanas, department of Piura has allowed the identification and description of a ceremonial complex, built and occupied between the Xth and the Vth centuries B.C.. Several phases of edification and widening of the complex have been recognized according to a general U shape plan. Several ceramic traditions of various styles and origins can be found contemporarily on the site, and their temporal evolution can be identified and followed from these points of view: forms, decorative techniques and iconography which is abundant and diverse. The data, new for this study area, and the comparative analysis of material remains demonstrate the existence of relations with nearby zones and, particularly, the integration of Alto Piura in Southern ideological and religious systems. The establishment of the site might be related to its geographic location, at the crossing of an exchange route between coastal, andean and amazonian

  5. Improved safety features in the design of Alto Lazio NPP

    International Nuclear Information System (INIS)

    Bava, G.; Cianciolo, T.; Del Nero, G.

    1988-01-01

    The ALTO LAZIO Nuclear Power Plant, two 1000Mwe units, is a BWR 6/MARK III located about 100 km north of Rome, on the Tyrrhenian Sea Coasts. The construction of the plant started in 1978, but it has recently been stopped by a Government decision following a national referendum, when the units were about 70% completed. This paper is mainly intended to illustrate the major safety features which have been implemented as result of specific requirements issued by the safety authority (ENEA DISP) during the construction permit stage or the subsequent licensing process. One of the tools used to identify the need for design modifications has been a comprehensive reliability analysis of safety system: in the paper the methods used and the major results obtained by this study are briefly presented. Also, the approach used in the investigation of severe accidents and major applications in the area of plant design and emergency procedures are briefly discussed; furthermore the trend toward a simpler mitigation concept is described

  6. Comercio e intercambio en la Hispania romana (Alto imperio

    Directory of Open Access Journals (Sweden)

    Genaro CHIC GARCÍA

    2010-02-01

    Full Text Available RESUMEN: Se muestra al Alto Imperio como una etapa de desarrollo del individualismo en relación con la formación de mercados impersonales dominados por la racionalidad económica, manifiesta en signos tales como la moneda y la escritura fonético- vocálica, que va desplazando a los sistemas de relación tradicionales basados en el prestigio social y los intercambios personalizados. La formación de un Estado burocrático centralizado, sin embargo, hará colapsar el incipiente liberalismo comercial.ABSTRACT: The Early Empire is shown as a stage of development of the individualism in relation to the formation of impersonal markets dominated by the economic rationality, wich becomes evident in signs such as the coin or the phonetic-vocalic writing, that is displacing the traditional systems of relation based on the social prestige and the personalized exchange. Nevertheless, the formation of a centralized bureaucratic state will cause the incipient commercial liberalism to collapse.

  7. TNO Photometry and Spectroscopy at ESO and Calar Alto

    Science.gov (United States)

    Boehnhardt, H.; Sekiguchi, T.; Vair, M.; Hainaut, O.; Delahodde, C.; West, R. M.; Tozzi, G. P.; Barrera, L.; Birkle, K.; Watanabe, J.; Meech, K.

    New photometry and spectroscopy of Transneptunian objects (TNO) has been obtained at ESO (VLT+FORS1, NTT+SOFI) and the Calar Alto (3.5m+MOSCA) observatory. BVRI photometry of more than 10 objects confirms the general colour-colour distribution of TNOs found previously. Quasi-simultaneous spectroscopy in the visible wavelength range of 5 TNOs did not reveal any spectral signature apart from the spetral gradients which are in agreement with the broadband colours. JHK filter photometry of 3 objects indicates that the reddening may only occur in the near-IR at least in some cases. Using new observations from the ESO VLT the lightcurve, colours and spectrum of 1996TO66 are investigated: the rotation period of 6.25h is confirmed, also the change in the lightcurve between 1997 and 1998 which indicates an exceptional behaviour in this object (temporary cometary activity ?). The 1999 photometry and spectroscopy in the visible revealed solar colours, no reddening and no spectral features. V-R colour changes over the rotation phase are not found. This works is done in colaboration with:

  8. Technical and scientific report of the Alto project

    International Nuclear Information System (INIS)

    Essabaa, S.; Gardes, D.; Grialou, D.; Ibrahim, F.; Le Scornet, J.C.

    2002-01-01

    The Alto project means the installation of an electron linear accelerator inside the experimental area of the tandem accelerator of the nuclear physics institute of Orsay (IPNO, France). This linear accelerator comes from CERN where it was operating as a pre-injector for LEP. This equipment will allow IPNO'teams to perform fast kinetics studies in a domain different from that of ELYSE accelerator. The time resolution will not be as high as that of ELYSE (picosecond) but will be sufficient (microsecond) to produce free radicals in aqueous and gaseous media. The main expectations of this installation can be classified according 3 axis: 1) basic research (mainly the study of nuclear matter through photo-fission, 2) research and development of accelerators (by providing a test bench for new high frequency systems and superconducting components), and 3) applied research for industry concerning: biochemistry under irradiation, radiation sensibility, DNA breaking, food and drug sterilization and behaviour of electronic components under irradiation. This rapport details the research program that could be achieved with this equipment, describes its contributions in terms of economic development, cooperation with industry, student training, and specifies the needed investment and the operating and maintenance costs. (A.C.)

  9. Geochemical and isotope aspects of calcite deposits and calcitic marbles hosts mineralizations, Serra do Carumbe, Vale do Ribeira, Parana state, Brazil

    International Nuclear Information System (INIS)

    Venusso, Gerson Caetano; Andrade e Silva, Antonio C. Gondim de

    2011-01-01

    The calcite deposits and the calcitic marbles hosts occur in Serra do Carumbe, in the Vale do Ribeira region, Parana State, were studied in their geochemical and isotopic aspects viewing the gathering of information about their genesis and economical use. The calcite deposits are constituted by veins and lenses, being three of them concordant and one discordant in relation to the S_0 from the hosting marbles. In these deposits four main types of calcite were recognized: rombohedrical, fibrous, banded and microcrystalline. The calcite reveal themselves having high purity, with CaO concentration above 55.30% and MgO below 0.42%. The lithogeochemical study of the marbles sequence was conducted in various suites revealing an uniformity in their composition, with high values of CaO (above 46.92%) in relation to the MgO values (below 3,37%), what favors their use for cement manufacture, except in sectors that suffered fault influences, where the marbles are impure (siliceous, magnesian, ferruginous and aluminous). Regarding their trace elements content, the hosting calcitic marbles have higher concentrations than the calcite, in the elements Sr, B, Ba and Mg, what makes evident their different formation environments. The δ"1"3C values from calcite range from –9,02 to –12,24 ‰ , referring to PDB, while the values δ"1"8O range from 24,48 to 25,23 ‰, referring to SMOW; meanwhile, for the calcitic marbles, the δ"1"3C values range from –4,03 to 1,42‰ and of δ"1"8O range from 20,71 to 23,00 ‰. The high δ"1"8O values would indicate enrichment referring to the interaction of the calcite's generator fluid with the carbonatic host rock. The δ"1"3C values indicate origin from hydrothermal solution for the calcite, although they would not allow to conclude if their sources would be superficial or profound. As for the hosting calcitic marbles, the isotopic values indicate genesis from pre-cambrian marine limestone. (author)

  10. Dislipidemias en comunidades pehuenches de Alto Biobio chileno Dyslipidemias in Pehuenche communities from Chilean Alto Bio Bio

    Directory of Open Access Journals (Sweden)

    Claudia Navarrete Briones

    2013-01-01

    Full Text Available Se realizó un estudio descriptivo y transversal de 400 habitantes (mayores de 15 años de edad de las comunidades pehuenches de Alto Biobio en Chile, de mayo a octubre del 2011, a fin de determinar la prevalencia de dislipidemias en esta población. La información necesaria se recolectó sobre la base de la normativa y los criterios del Ministerio de Salud y como resultados generales de las concentraciones plasmáticas promedio y la prevalencia de dislipidemias figuraron: colesterol total de 169,20 ±26,36 mg/dL y 8,2 %; lipoproteínas de baja densidad de 89,93 ±23,31 mg/dL y 4,5 %; triglicéridos de 145,89 ±48,96 mg/dL y 53,0 %; y lipoproteínas de alta densidad de 50 ±8,87 mg/dL y 28,3 %. Las cifras fueron inferiores en el grupo etario de 15-24 años y en personas de ascendencia pehuenche, con una pobre asociación a sobrepeso u obesidad abdominal; en general, resultaron menores a las de los citadinos.A descriptive and cross-sectional study was carried out in 400 people (over 15 years from Pehuenche communities of the Chilean Alto Biobio, from May to October 2011, in order to determine the prevalence of dyslipidemias in this population. Necessary information was collected on the basis of regulations and criteria of the Ministry of Health, and as general results of average plasma levels and prevalence of dyslipìdemia were: total cholesterol 169.20 ± 26.36 mg/dL and 8.2%; low-density lipoproteins 89.93 ± 23.31 mg/dL and 4.5%; triglycerides 145.89 ± 48.96 mg/dL and 53.0%; and high-density lipoproteins 50 ±8.87 mg/dL and 28.3%. The values were lower in the age group of 15-24 years and in Pehuenche people with poor association with abdominal obesity or overweight; in general, they were lower than those of the city people.

  11. Busca de estruturas em grandes escalas em altos redshifts

    Science.gov (United States)

    Boris, N. V.; Sodré, L., Jr.; Cypriano, E.

    2003-08-01

    A busca por estruturas em grandes escalas (aglomerados de galáxias, por exemplo) é um ativo tópico de pesquisas hoje em dia, pois a detecção de um único aglomerado em altos redshifts pode por vínculos fortes sobre os modelos cosmológicos. Neste projeto estamos fazendo uma busca de estruturas distantes em campos contendo pares de quasares próximos entre si em z Â3 0.9. Os pares de quasares foram extraídos do catálogo de Véron-Cetty & Véron (2001) e estão sendo observados com os telescópios: 2,2m da University of Hawaii (UH), 2,5m do Observatório de Las Campanas e com o GEMINI. Apresentamos aqui a análise preliminar de um par de quasares observado nos filtros i'(7800 Å) e z'(9500 Å) com o GEMINI. A cor (i'-z') mostrou-se útil para detectar objetos "early-type" em redshifts menores que 1.1. No estudo do par 131046+0006/J131055+0008, com redshift ~ 0.9, o uso deste método possibilitou a detecção de sete objetos candidatos a galáxias "early-type". Num mapa da distribuição projetada dos objetos para 22 escala. Um outro argumento em favor dessa hipótese é que eles obedecem uma relação do tipo Kormendy (raio equivalente X brilho superficial dentro desse raio), como a apresentada pelas galáxias elípticas em z = 0.

  12. Presença ausente e ausência presente do Estado na produção do espaço para o turismo no Vale do Ribeira paulista Présence absente et absence présente de l’État dans la production de l’espace touristique dans la vallée du Ribeira, São Paulo

    Directory of Open Access Journals (Sweden)

    Carolina Todesco

    2010-07-01

    Full Text Available A região do Vale do Ribeira, situada no sul do Estado de São Paulo, detém 20% dos remanescentes florestais de Mata Atlântica do Brasil e apresenta os menores índices de desenvolvimento humano do estado de maior densidade técnico-científico-informacional e de capital do país. A atual configuração socioespacial dessa região é produto de um processo histórico marcado pela ação e inação do Estado, o qual desempenha seu papel na produção do espaço de forma diferenciada conforme o movimento da história. Ao analisar as políticas públicas de desenvolvimento regional direcionadas ao Vale, dos anos 60 até o início dos anos 80, nota-se a forma centralizada e ineficiente da ação do Estado, sem o envolvimento da sociedade civil no processo de produção de suas políticas, período que denominamos de “presença ausente do Estado no Vale do Ribeira”. A partir da década de 80, um conjunto de fatores leva a região a se deparar com novos problemas e desafios. A redemocratização política, o avanço do neoliberalismo, a crescente preocupação com as chamadas questões ambientais, o aumento do número de organizações do terceiro setor e a descentralização da produção de políticas públicas desencadeiam uma nova forma de o Estado desempenhar seu papel na produção do espaço. Neste contexto, é nítida a mudança de foco das ações estatais direcionadas ao Vale do Ribeira, influenciada, sobretudo, pelas ONGs ambientalistas, que passam a atuar ativamente na arena política. A partir de então, inicia-se o discurso, pronunciado pelos órgãos públicos e ONGs, de que o ecoturismo é uma alternativa para o Vale, capaz de conciliar conservação ambiental e desenvolvimento social. Entretanto, o Estado passa a delegar às organizações do terceiro setor a incumbência de planejar o desenvolvimento regional do Vale do Ribeira, tornando-se o ente financiador dos projetos. Esta nova face do Estado faz com que o

  13. Preferências alimentares e domiciliação de mosquitos Culicidae no Vale do Ribeira, São Paulo, Brasil, com especial referência a Aedes scapularis e a Culex (Melanoconion Feeding preferences and domiciliation of Culicidae mosquitoes in the Ribeira Valley, S. Paulo State, Brazil, with particular reference to Aedes scapularis and Culex (Melanoconion

    Directory of Open Access Journals (Sweden)

    Oswaldo Paulo Forattini

    1989-02-01

    Full Text Available Apresentam-se novos dados sobre a identificação do sangue ingerido por culicídeos ingurgitados e coletados em quatro localidades do Vale do Ribeira, Estado de São Paulo (Brasil, no período de fevereiro a novembro de 1986, e que já tinham sido sede de observações anteriores. São fornecidos dados sobre a distribuição de algumas espécies relacionadas ao tipo de ambiente. Focalizam-se Ae. scapularis e representantes de Culex (Melanoconion, principalmente Cx. ribeirensis e Cx. sacchettae. Foi possível a identificação de 651 repastos sangüíneos. Confirmou-se a preferência de Ae. scapularis por mamíferos de grande porte representados por bovinos, eqüinos e o próprio homem, tendo reagido a todos os anti-soros testados, com exceção do correspondente a animais de sangue frio representados por anfíbio. Cx. ribeirensis revelou resultados que sugerem possível preferência por mamíferos. As duas espécies supracitadas mostram tendência nítida para adaptação ao ambiente modificado pelo homem e capacidade de evolução de seus hábitos de possível domiciliação. Quanto aos outros culicídeos, as coletas de An. bellator, An. cruzii e Cq. chrysonotum limitaram-se à isca humana que a segunda dessas espécies rendeu 31,6% do total de fêmeas capturadas.New results on blood-meal identification and the environmental distribution of mosquitoes collected in four different Ribeira Valley (S. Paulo State, Brazil environments, during the period February to November 1986, are presented. Sources of 651 blood-meals were identified. The preference of Ae. scapularis for large mammals, chiefly cattle, horse and even man, was confirmed. Data suggests that a similar behavioral pattern is presented by Cx. ribeirensis. Both mosquitoes seem to be strongly attracted by peridomiciliar blood sources represented by domestic animals sheltered in that environment. Nevertheless, the female of Ae. scapularis females may use the extradomiciliary environment

  14. Geologic evolution of the Paraiba do Sul complex, in the central part of the Ribeira belt, based on the geochemistry and U-Pb geochronology studies; Evolucao geologica do complexo Paraiba do Sul, no segmento central da faixa Ribeira, com base em estudos de geoquimica e geocronologia U-Pb

    Energy Technology Data Exchange (ETDEWEB)

    Valladares, Claudia Sayao

    1996-12-31

    Aiming the definition of the Complexo Paraiba do Sul evolution, the work presents a geochronological approach by the U-Pb method, considered appropriate to study polideformed terrains. The minerals used to the U-Pb dating (zircon, titanite and monazite) provides information about the ages of rock generation and the successive geological events the rocks were submitted. The U-Pb geochronological approach is pioneer in the investigated area and two questions referent to the Complexo Paraiba do Sul evolution in the central part of the Ribeira belt, were the aim of this approach. The first of them refers to the crystallization epoch and the gneisses metamorphism, interpreted here like orthogneisses, called Unidade Quirino of the Complexo Paraiba do Sul. The second refers to the metamorphism ages and meta sedimentary unit deformation. Looking for the contribution to the Complexo Paraiba do Sul evolution understanding, this work presents the data based on the geologic map of this area, comprising part of the Folha Volta Redonda (1:50.000), including petrographic, structural and microtectonic studies. It also presents and discusses the results of: 17 U-Pb analysis in zircon and titanite of the Complexo Paraiba do Sul orthogneisses collection; 24 geochemical analysis of major, minor, trace elements and ETR of the same collection; an U-Pb analysis in titanite of the Unidade Sao Joao, 5 U-Pb analysis in titanites and/or monazites of granites and granitoids; 12 geochemical analysis including major, minor and trace elements and ETR, in granites and sills of leucogranites. Finally, the data achieved were integrated with the objective to elaborate an evolutive view of the Complexo Paraiba do Sul 157 refs., 54 figs., 17 tabs.

  15. Geologic evolution of the Paraiba do Sul complex, in the central part of the Ribeira belt, based on the geochemistry and U-Pb geochronology studies; Evolucao geologica do complexo Paraiba do Sul, no segmento central da faixa Ribeira, com base em estudos de geoquimica e geocronologia U-Pb

    Energy Technology Data Exchange (ETDEWEB)

    Valladares, Claudia Sayao

    1997-12-31

    Aiming the definition of the Complexo Paraiba do Sul evolution, the work presents a geochronological approach by the U-Pb method, considered appropriate to study polideformed terrains. The minerals used to the U-Pb dating (zircon, titanite and monazite) provides information about the ages of rock generation and the successive geological events the rocks were submitted. The U-Pb geochronological approach is pioneer in the investigated area and two questions referent to the Complexo Paraiba do Sul evolution in the central part of the Ribeira belt, were the aim of this approach. The first of them refers to the crystallization epoch and the gneisses metamorphism, interpreted here like orthogneisses, called Unidade Quirino of the Complexo Paraiba do Sul. The second refers to the metamorphism ages and meta sedimentary unit deformation. Looking for the contribution to the Complexo Paraiba do Sul evolution understanding, this work presents the data based on the geologic map of this area, comprising part of the Folha Volta Redonda (1:50.000), including petrographic, structural and microtectonic studies. It also presents and discusses the results of: 17 U-Pb analysis in zircon and titanite of the Complexo Paraiba do Sul orthogneisses collection; 24 geochemical analysis of major, minor, trace elements and ETR of the same collection; an U-Pb analysis in titanite of the Unidade Sao Joao, 5 U-Pb analysis in titanites and/or monazites of granites and granitoids; 12 geochemical analysis including major, minor and trace elements and ETR, in granites and sills of leucogranites. Finally, the data achieved were integrated with the objective to elaborate an evolutive view of the Complexo Paraiba do Sul 157 refs., 54 figs., 17 tabs.

  16. A agroecologia como estratégia de gestão de Unidades de Conservação de uso sustentável no Vale do Ribeira, Estado de São Paulo, Brasil

    Directory of Open Access Journals (Sweden)

    Gabriela Narezi

    2018-01-01

    Full Text Available Este trabalho apresenta uma reflexão sobre a agroecologia em torno dos diferentes modelos de gestão concebidos para as áreas naturais protegidas. A pesquisa se voltou, em particular, para os debates acerca das Unidades de Conservação de Uso Sustentável do Estado de São Paulo – Brasil. Atualmente, na região do Vale do Ribeira, possuidora de um dos maiores remanescentes contínuos de Mata Atlântica do País, é possível encontrar disputas por diferentes modelos de gestão destas áreas. A metodologia de pesquisa comportou levantamento bibliográfico, anotações em cadernos de campo, entrevistas semiestruturadas e obtenção de relatos orais nos espaços participativos de gestão e uso do território no âmbito da recategorização da Estação Ecológica Jureia-Itatins em mosaicos de Unidades de Conservação. Foi possível encontrar evidências de que o modo de vida e de produção agrícola favorecem uma sensibilidade das populações locais ao início de um processo de transição agroecológica. No entanto, mesmo com a repercussão de experiências agroecológicas de sucesso no Vale do Ribeira, ainda são muito incipientes as iniciativas de conservação da sociobiodiversidade e de valorização cultural no interior de Unidades de Conservação paulistas.

  17. Metallogenic aspects of the feldspars and micas geochemistry in pegmatite from Alto-Ligonha (Mocambique)

    International Nuclear Information System (INIS)

    Neves, J.M.C.

    1990-01-01

    This paper deals with metallogenic aspects concerning the huge Alto Ligonha pegmatite Province. The geological setting of the pegmatites is briefly reviewed and the metamorphic grade of the country rocks of the pegmatites, ranging from granulitic to greenschist facies, has been considered. The economically most interesting pegmatites are those emplaced within rocks with lighter metamorphism. The available geochronological data allow us to link, the most interesting pegmatites from Alto Ligonha, to the Pan-African granitoid magmatism, about 500 Ma ago. (author)

  18. Fístula de alto gasto High output fistula

    Directory of Open Access Journals (Sweden)

    Ricardo Almeida Varela

    2012-06-01

    Full Text Available Se presenta a un paciente de 37 años de edad que acude a nuestro Cuerpo de Guardia politraumatizado, con lesiones torácicas y abdominales, con síntomas y signos sugestivos de fracturas costales múltiples, con hemotórax derecho y hemoperitoneo, corroborado imaginológicamente y en la punción abdominal. Se realiza pleurostomía mínima intermedia y laparotomía exploratoria. Se le encuentran lesiones hepáticas de los segmentos VI, V, VIII y IV, con una profundidad mayor de 3 cm, además, deserosamientos en las asas delgadas intestinales y colon. Se realiza hepatorrafia y empaquetamiento hepático. Posteriormente van apareciendo complicaciones, por lo que tiene que ser reintervenido en más de 60 ocasiones. Entre ellas, la aparición de una fístula de alto gasto, que lo llevó a la desnutrición y a la permanencia con el abdomen expuesto durante 7 meses hasta el egreso. Se revisa la literatura correspondiente a estas entidades.A 37 years-old multi-traumatized male patient went to our emergency service. He had many injures in the thorax and the abdomen, together with symptoms and signs suggestive of multiple costal fractures, with right hemothorax and hemoperitoneum, all of which was confirmed by imaging techniques and by abdominal puncture. Minimal intermediate pleurostomy and exploratory laparoscopy were performed. We found hepatic lesions in the 6th, 5th, 8th and 4th segments, over 3 cm deep; additionally, the loss of serosa from the intestinal ansae and from the colon. Hepatorrhaphy and hepatic packing were also performed. Later on, more complications appeared, so he had to be re-operated more than 60 times. The occurrence of a high output fistula led him to malnutrition and his abdomen remained exposed for 7 months until he was finally discharged from hospital. This paper also presented a literature review on this topic.

  19. Pollution in coastal fog at Alto Patache, Northern Chile.

    Science.gov (United States)

    Sträter, Ellen; Westbeld, Anna; Klemm, Otto

    2010-11-01

    The Atacama Desert in Northern Chile is one of the most arid places on earth. However, fog occurs regularly at the coastal mountain range and can be collected at different sites in Chile to supply settlements at the coast with freshwater. This is also planned in the fog oasis Alto Patache (20°49'S, 70°09'W). For this pilot study, we collected fog water samples in July and August 2008 for chemical analysis to find indications for its suitability for domestic use. Fog water samples were taken with a cylindrical scientific fog collector and from the net and the storage tank of a Large Fog Collector (LFC). The pHs of advective fog, originating from the stratus cloud deck over the Eastern Pacific, varied between 2.9 and 3.5. Orographic fog, which was formed locally, exhibited a pH of 2.5. About 50% of the total ionic concentration was due to sea salt. High percentages of sulfate and very high enrichment factors (versus sea salt) of heavy metals were found. Both backward trajectories and the enrichment factors indicate that the high concentrations of ions and heavy metals in fog were influenced by anthropogenic activities along the Chilean Pacific Coast such as power plants, mining, and steel industry. We found no direct indication for the importance of other sources such as the emission of dimethyl sulfide from the ocean and subsequent atmospheric oxidation for acidity and sulfate or soil erosion for heavy metal concentrations. When fog water was collected by the LFC, it apparently picked up large amounts of dry deposition which accumulated on the nets during fog-free periods. This material is rinsed off the collector shortly after the onset of a fog event with the water collected first. During the first flush, some concentrations of acidity, nitrate, As, and Se, largely exceeded the Chilean drinking water limits. Before any use of fog water for domestic purpose, its quality should be checked on a regular basis. Strategies to mitigate fog water pollution are given.

  20. camarón del Alto Golfo de California

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    Homero R. Cabrera M.

    2006-01-01

    Full Text Available Actualmente la pesquería del camarón en el Alto Golfo de California genera preocupaciones referentes a su impacto sobre el medio ambiente, su viabilidad biológica y rentabilidad. Con el propósito de entender el manejo de esta pesquería y su productividad física, hemos examinado el comportamiento productivo de los barcos camaroneros de San Felipe, B.C. durante el periodo 1990-1993. Para ello usamos una función de producción frontera, flexible y no restringida, respecto a la cual estimamos la eficiencia técnica de cada una de las naves observadas. Nuestros resultados indican que la eficiencia promedio de la flota observada es del 80%, un valor de eficiencia cercano al mejor uso de la tecnología productiva y de los factores de la producción. Las naves más viejas resultaron menos eficientes, un resultado esperado; sin embargo, el tamaño de la cooperativa y calidad de su administración afectó positivamente los valores de eficiencia de las naves asociadas enmascarando con ello el efecto antes mencionado y favoreciendo el desarrollo de economías de escala. Los resultados indican también que el conocimiento acumulativo sobre la pesquería del camarón entre los productores es una variable importante, en términos de su efecto sobre la eficiencia productiva de las naves, mientras que la innovación tecnológica ha sido escasa, excepto por los excluidores de tortugas incorporados a su tecnología de captura durante 1996. Concluimos de nuestro análisis que la divulgación del conocimiento sobre la pesquería, como una variable social de cambio desincorporada a la función de producción, y el fortalecimiento de la calidad de los servicios administrativos, son dos aspectos fundamentales a promover para el desarrollo de esta pesquería. También argumentamos que la semejanza tecnológica y operativa entre ambas flotas, la de San Felipe, B.C. y el resto de la flota del camarón que pesca en el Golfo de California permite que nuestro an

  1. Processamento da rede neocognitron para reconhecimento facial em ambiente de alto desempenho GPU

    OpenAIRE

    Gustavo Poli Lameirão da Silva

    2007-01-01

    Neste trabalho é apresentada a implementação da Rede Neural Neocognitron, usando uma arquitetura de computação de alto desempenho baseada em GPU (Graphics Processing Unit). O Neocognitron é uma rede neural artificial, proposta por Fukushima e colaboradores, constituída de vários estágios de camadas de neurônios, organizados em matrizes bidimensionais denominadas planos celulares. Para o processamento de alto desempenho da aplicação de reconhecimento facial usando neocognitron foi utilizado o ...

  2. Los tambos Inca: el caso de Camata Tambo valle alto de Moquegua

    OpenAIRE

    Chacaltana Cortez, Sofía; Ministerio de Cultura

    2013-01-01

    Camata Tambo está ubicado en la parte alta del valle alto de Moquegua. Por este tambo pasa un camino Inca que viene del altiplano y continúa hacia el centro provincial de Sabaya ubicado a 1 km valle abajo.

  3. Motivación y equipos de alto desempeño

    OpenAIRE

    Olaya Gómez, Audrey Yazmin

    2015-01-01

    “Yo hago lo que usted no puede, y usted hace lo que yo no puedo. Juntos podemos hacer grandes cosas” (Teresa de Calcuta).El objetivo de este ensayo es reconocer que en un equipo de alto desempeño se requiere tanta motivación a nivel personal. 

  4. Schooling and Critical Citizenship: Pedagogies of Political Agency in El Alto, Bolivia

    Science.gov (United States)

    Lazar, Sian

    2010-01-01

    This article explores the formation of citizenship as social practice in a school in El Alto, Bolivia. I examine interactions between "banking" forms of education, students' responses, and embodied practices of belonging and political agency, and argue that the seemingly passive forms of knowledge transmission so criticized by critical…

  5. Esporte de alto rendimento: reflexões psicanalíticas e utópicas

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    Mariana Hollweg Dias

    2012-01-01

    Full Text Available Este artigo busca fazer uma análise a respeito do esporte de alto rendimento a partir dos referenciais teóricos da Psicanálise e dos Estudos Utópicos, partindo do princípio de que a lógica do esporte de alto rendimento na contemporaneidade reverbera a lógica do laço social. A exigência da "alta performance" sempre é uma das características de nossa época que estão fortemente presentes no discurso do esporte de alto rendimento e que muitas vezes são fonte de padecimento para os sujeitos, atletas ou não. Apesar disso, o esporte ainda tem muito a contribuir na nossa sociedade, e a aposta deste trabalho é no que foi chamado utopia esportiva, que preconiza o acento na busca da superação mais do que o resultado final necessariamente no lugar mais alto do pódio.

  6. Changes without changes: the Puebla's Alto Atoyac sub-basin case in Mexico

    NARCIS (Netherlands)

    Bressers, Johannes T.A.; Casiano Flores, Cesar Augusto

    2015-01-01

    Since the year 2000, actions at the three governmental levels have taken place to improve water quality in Mexico’s Puebla Alto Atoyac sub-basin. This paper reports a situation in which several policy actors have been striving for water quality improvement in that polluted sub-basin. However, when

  7. The question of food security in the localities of Ribeirão and Garça de Cima, in the municipality of Ribeira Grande, Santo Antão - Cape Verde

    Directory of Open Access Journals (Sweden)

    Manuel Francisco Monteiro

    2016-12-01

    Full Text Available Cape Verde, an island country with few natural resources and with adverse soil and weather conditions, imports most of the foodstuffs that need. Local production, although scarce, is relevant to food security. This article reflects a case study in the municipality of Ribeira Grande, island of Santo Antão -Cape Verde, whose aim was to study the role of three production systems in the generation of income, food security and improving the quality of life of families. These systems are: vegetable production, rainfed production and sugar cane production. A total of 105 surveys were carried out in the localities of Ribeirão and Garça de Cima, equally distributed among different agricultural producers. It was found that the sugar cane producers have an average annual income superior to horticulture and rainfed farmers, 402,154, 337,602 and 259,764 CVE respectively (1 euro = 110.265 Cape Verdean escudos – CVE. With respect to food intake, the differences are not significant. Horticulture farmers have a calorie intake of 2959.71, rainfed producers 2926.65 and sugar cane producers 2888.86 kcal/EM/day. With regard to indicators of quality of life, the families of horticulture farmers and sugar cane producers present similar results, superior to the rainfed producers’ families.

  8. Production and study of fission fragments, from Lohengrin to Alto; Production et etude des fragments de fission, de Lohengrin a Alto

    Energy Technology Data Exchange (ETDEWEB)

    Ibrahim, F

    2005-06-15

    The study of nuclei far from stability is constitutive of the history of nuclear physics at its very beginning and has been making considerable great strides since then. The study of these nuclei give the opportunity to reach new information on the nuclear structure and thus to measure the solidity of our knowledge on nuclear matter and its validity when it is pushed to its limits. The reaction selected for the production of exotic nuclei in the framework of the PARRNe program is the fission of uranium 238. The nuclei produced have an intermediate mass and are very rich in neutrons. The technique to recover them in order to accelerate them is the thick target method called also the Isol technique. The installation of the ancient Lep injector at the Tandem line in Orsay (IPN) is expected to increase by a factor 100 the production rate of exotic nuclei in the PARRNe program, it is the Alto project. The work presented here concerns studies carried out at the Lohengrin spectrometer installed at the ILL in Grenoble, and at the Tandem installation in Orsay. This document is divided into 4 parts: 1) in flight techniques at Lohengrin, 2) the Isol technique, 3) magic numbers in the domain N=50, and 4) the Alto project.

  9. Tromboembolismo pulmonar masivo de alto riesgo asociado a foramen oval permeable

    Directory of Open Access Journals (Sweden)

    Antonio Miranda

    2012-04-01

    Full Text Available La alta mortalidad de los pacientes con tromboembolismo pulmonar masivo de alto riesgo amerita un enfoque terapéutico enérgico e invasivo que incluya la embolectomía pulmonar quirúrgica en aquellos pacientes con contraindicación para trombolisis o trombolisis fallida. Describimos un caso de tromboembolismo pulmonar masivo de alto riesgo que recibió tratamiento quirúrgico en vez de trombolisis debido a que al momento del diagnóstico presentaba un trombo móvil a través de un foramen oval permeable con altísima posibilidad de embolismo paradójico arterial.

  10. Metodologia de avaliação e desenvolvimento de grupos de alto desempenho

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    Ana Cristina Carneiro

    2008-11-01

    Full Text Available Este artigo discute a fundamentação teórica do Projeto de Avaliação e Desenvolvimento de Grupos de Alto Desempenho, concebido com base na metodologia da Meta-aprendizagem, e no Modelo Evolutivo, estendido à luz da Teoria da Complexidade. Visa ao desenvolvimento e aplicação de uma metodologia de avaliação/constituição de grupos de alto desempenho no ambiente de pesquisa e pós-graduação. A metodologia proposta validada empiricamente teve base no aproveitamento das virtudes e potencialidades das teorias que lhe deram origem. É destinado aos docentes e pesquisadores de vários campos do conhecimento, bem como aos dirigentes de instituições de educação superior e de pesquisa.

  11. Event review: International Knapping Workshop, with Bruce Bradley, Fazenda Monte Alto, Dourado, SP (Brazil

    Directory of Open Access Journals (Sweden)

    Elisa Theodora Adriana van Veldhuizen

    2016-07-01

    Full Text Available The event took place from 3 till 8 July 2016 at Fazenda Monte Alto, Dourado, SP, Brazil. The aim of the course was to provide intensive knapping training in order to enhance analytical methods and procedures. This training was not only for students, but also professionals who were interested in the course. The course was given by Bruce Bradley (University of Exeter, who has extensive experience with Stone Age technologies and experimental archaeology. Mercedes Okumura (PPGArq, National Museum, Federal University of Rio de Janeiro and Astolfo G. M. Araujo (Museum of Archaeology and Ethnology, University of São Paulo organized the course, which was sponsored by Fazenda Monte Alto, Café Helena, and the British Academy, Newton Mobility Grants Scheme (NG140077. The workshop had 15 participants from Brazil, Uruguay, the Netherlands and Canada.

  12. El 'ayllu' reterritorializado, y su 'taypi'. La ciudad de El Alto.

    Directory of Open Access Journals (Sweden)

    Orlando Augusto Yépez Mariaca

    2010-05-01

    Twenty-five years a suburb of La Paz, now the city of El Alto, the heat of the capital's neoliberal policies, implodes in the urban area provided by flat topography as opposed to La Paz, to become today in a city with larger population and greater extent than its parent. With a population of mostly Aymara-Indian-moving and rich in its live, old traditions of the Andean Community institution like Ayllu and Aini, among others. On October 2003, the city of El Alto, the epicenter of a massive social upheaval, becoming the leader of the anti-globalization social movements. Will the 'pachakuti' "return" of the ancient traditions originate? The shop is above all 'live together', and perhaps a light at the end of the tunnel, a tunnel that big business has been built so arrogant and conceited, leaving cities now fragmented, unbalanced territories and a planet on the brink of collapse.

  13. Sonido espacial para una inmersión audiovisual de alto realismo

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    Basilio Pueo Ortega

    2012-04-01

    Full Text Available Los sistemas de vídeo y audio de alta inmersión tienen un auge impor-tante en entornos audiovisuales realistas. Las sensaciones visuales y sonoras que crean en el público se aproximan con un alto grado de similitud a lo percibido en el entorno real que pretenden recrear. Para ello, los estímulos deben contener toda la información necesaria, tanto espacial como temporal, que permita crear la ilusión de que el objeto audiovisual es real. En este artículo, se realiza un repaso de los sistemas audiovisuales que permiten esta recreación, con especial atención en los sistemas de audio envolvente. Se describe la técnica de audio 3D más prometedora, Wave Field Synthesis, junto con diversos campos de aplicación de entornos audiovisuales de alto realismo.

  14. The Interactive Dimension of Communication: The Pragmatics of the Palo Alto Group

    OpenAIRE

    Codruţa Porcar; Cristian Hainic

    2011-01-01

    Our paper proposes to analyze from a semiotic perspective the process of communication as conceived within the Palo Alto Group. We will firstly show that, as a result of the Group's critiques and revisions of the linear or mechanistic theories of communication, new perspectives are brought about for the essential axes of transformation within communication: we do not communicate as from a distinct atom to another, through an isolated channel, but through parts which are equal to the whole, th...

  15. DESENVOLVIMENTO E PRODUÇÃO DE BANANEIRA ‘GRANDE NAINE’ EM DIFERENTES SISTEMAS DE MANEJO PARA A CONVIVÊNCIA COM A SIGATOKA-NEGRA NO VALE DO RIBEIRA-SP

    Directory of Open Access Journals (Sweden)

    EDSON SHIGUEAKI NOMURA

    2015-09-01

    Full Text Available RESUMO Objetivou-se avaliar o desenvolvimento e a produção de bananeira da cultivar Grande Naine submetidos a diferentes sistemas de manejo para a convivência com a Sigatoka-negra no Vale do Ribeira-SP (Brasil. Utilizou-se de mudas de ‘Grande Naine’ micropropagadas e conduzidas em delineamento inteiramente casualizado, com cinco tratamentos (sistemas de manejo: plantio intercalado; fungicida; desfolha+plantio intercalado; desfolha+fungicida; testemunha e subdividida no tempo (dois ciclos de produção, com oito repetições, considerando uma planta por repetição. Foram avaliados os seguintes parâmetros: altura da planta, diâmetro do pseudocaule, número de folhas ativas no florescimento e na colheita, massa fresca dos frutos comercializáveis, produtividade, número de pencas, número total de frutos, massa fresca total e por frutos da 2ª penca, comprimento e diâmetro de frutos da 2ª penca. Os dados foram submetidos a análises de variâncias, pelo teste F; e as médias, quando significativas, foram submetidas ao teste de Tukey (5 % de probabilidade. Conclui-se que as aplicações de fungicidas foram eficientes para o controle da Sigatoka-negra, com melhores resultados no desenvolvimento, na produção e na qualidade dos frutos da cultivar Grande Naine, porém sem apresentar diferenças quando associados com a desfolha. O plantio intercalado afetou negativamente em todos os parâmetro de desenvolvimento e produção da cultivar Grande Naine.

  16. Calidad de los servicios de anticoncepción en El Alto, Bolivia The quality of contraception services in El Alto, Bolivia

    Directory of Open Access Journals (Sweden)

    Carmen Velasco

    1999-06-01

    Full Text Available El presente estudio tuvo por objetivo evaluar la calidad de los servicios de anticoncepción en la ciudad de El Alto, Bolivia. En su diseño se han contemplado cuatro elementos: 1 las relaciones entre los proveedores de servicios y sus clientes, 2 la disponibilidad de métodos anticonceptivos, 3 las condiciones de los servicios, y 4 la satisfacción de las usuarias. También se han tenido en cuenta las opiniones de los proveedores y de las usuarias y no usuarias de estos servicios, quienes se clasificaron como gubernamentales o no gubernamentales, de acuerdo con la administración de la institución a la que pertenecían. Los datos provinieron de un análisis de la situación de dichos servicios y de testimonios obtenidos de las participantes durante 1995. En cuanto a las relaciones interpersonales, se encontró que los proveedores percibían el trato del médico más favorablemente que las clientas, en tanto que las no usuarias lo percibían desfavorablemente. La percepción de un trato igualitario se correlacionó positivamente con la vestimenta que usaban las clientas. En cuanto a la disponibilidad de los métodos anticonceptivos, 15 de las 36 instituciones encuestadas no disponían de métodos modernos, a pesar de la existencia de una política nacional para proveerlos a la población. La oferta de estos servicios a parejas y a adolescentes es escasa, principalmente en las instituciones gubernamentales. El análisis de las condiciones de los servicios demostró que en algunas instituciones había problemas graves en la provisión de una atención de mínima calidad. Finalmente, este trabajo describe cómo la mayoría de estas limitaciones en la prestación de servicios de anticoncepción en El Alto pueden subsanarse mediante estrategias de costo moderado.The objective of this study was to evaluate the quality of contraception services in the city of El Alto, Bolivia. In the study design, four components were considered: 1 interpersonal

  17. Biodiversity and distribution of arbuscular mycorrhizal fungi in Araucaria angustifolia forest Biodiversidade e distribuição de fungos micorrízicos arbusculares em floresta de Araucaria angustifolia

    Directory of Open Access Journals (Sweden)

    Milene Moreira

    2007-08-01

    Full Text Available Araucaria angustifolia (Bert. O. Ktze. is an endangered Brazilian coniferous tree that has been almost exterminated in the native areas because of uncontrolled wood exploitation. This tree has been shown to be highly dependent on arbuscular mycorrhizal fungi (AMF and, therefore, AMF may be essential for forest sustainability and biological diversity. Root colonization, density and diversity of AMF spores were assessed in two Araucaria forest stands at the State Park of Alto Ribeira (PETAR, at two sampling dates: May and October. A comparison was made between a mature native stand composed of Araucaria trees mixed into a variety of tropical trees and shrubs, without any sign of anthropogenic interference (FN and an Araucaria stand planted in 1987 (R, which has been used as a pasture. Assessments included percent root colonization, AMF spore numbers and species richness, Simpson's dominance index (Is, and Shannon's diversity index (H. Mycorrhizal root colonization did not differ between ecosystems in May. In October, however, the native stand (FN presented a higher colonization than the planted forest (R, and the root colonization was more intense than in May. When considering both sampling periods and forests, 27 species of AM fungi, with higher numbers of spores in FN than in R were found. Canonical discriminant analysis (CDA indicated Shannon's diversity index as the ecological attribute that contributed the most to distinguish between forest ecosystems, with higher value of H in FN in relation to R. CDA showed to be a useful tool for the study of ecological attributes.O pinheiro brasileiro, Araucaria angustifolia (Bert. O. Ktze é uma espécie arbórea ameaçada de extinção, quase exterminada pela exploração descontrolada de madeira. Essa espécie demonstra alta dependência de fungos micorrízicos arbusculares (FMA, de grande importância para a estabilidade do ecossistema e manutenção da biodiversidade. Avaliou-se a coloniza

  18. Calidad del coque de Horno Alto en la Unión Europea

    Directory of Open Access Journals (Sweden)

    Alvarez, R.

    2002-10-01

    Full Text Available After a brief review of the coking technology at the beginning of the new millennium, blast furnace coke quality criteria of most of EU countries, presented by the European Blast Furnace Committee in the 4th European Coke and Ironmaking Congress, are compared with those used by the Spanish Steel Industry at Aceralia. Blast furnace coke quality is very high in EU's countries in order to meet the requirements of bigger blast furnaces commissioned in the last years. CSR index is the most important parameter in the control of coke quality in Europe.

    En el presente trabajo se ha llevado a cabo una breve revisión de las tecnologías de coquización existentes al comienzo del nuevo milenio. Los criterios de calidad del coque de Horno Alto de la mayoría de los países de la Unión Europea, recogidos por el European Blast Furnace Committee, y que fueron presentados en el 4th European Coke and Ironmaking Congress en París durante el año 2000, se comparan con los utilizados por la industria siderúrgica española Aceralia. Como consecuencia del sensible aumento experimentado en el tamaño de los modernos Hornos Altos durante los últimos años, se ha podido comprobar que, en la UE, los valores de los diversos parámetros de control de calidad del coque son bastante similares y con unos requerimientos muy elevados. Asimismo, en la UE el parámetro CSR se ha convertido en el más importante para el control de la calidad del coque de Horno Alto.

  19. Estudio microbiológico de los alimentos elaborados en comedores colectivos de alto riesgo

    Directory of Open Access Journals (Sweden)

    Pérez-Silva García Mª del Carmen

    1998-01-01

    Full Text Available FUNDAMENTO: Valorar los resultados del análisis microbiológico de los alimentos preparados en comedores colectivos de alto riesgo, con el fin de conocer el grado de contaminación de los alimentos, analizar las causas de dicha contaminación y mejorar la situación sanitaria de estos establecimientos. MÉTODOS: Estudio observacional descriptivo con los datos obtenidos de la inspección sanitaria en 44 comedores colectivos de alto riesgo, que incluyó el análisis microbiológico de 90 alimentos, así como la inspección sanitaria de los establecimientos. RESULTADOS: En los colegios los microorganismos mesófilos fueron los contaminantes más frecuentes; en las guarderías y residencias de ancianos predominaron los indicadores de higiene deficiente en la manipulación de alimentos. Los microorganismos mesófilos se encontraron durante los meses fríos en mayor proporción que durante los meses cálidos. Los indicadores de higiene deficiente aparecieron generalmente en los alimentos preparados en establecimientos en los que se observaron deficiencias. Los microorganismos psicrótrofos no se encontraron en ninguno de los alimentos recogidos en guarderías y sí en colegios y residencias de ancianos. CONCLUSIONES: Este estudio indica qué problemas predominan en cada tipo de comedor colectivo de alto riesgo. Los mesófilos aparecen en los alimentos elaborados en cocinas de tamaño grande, los indicadores de higiene deficiente se encontraron asociados a una manipulación de alimentos por personal no profesional y a establecimientos con deficiencias, y los psicrótrofos se detectaron en aquellos establecimientos que guardan la comida sobrante. Se sugieren recomendaciones para la eliminación de los problemas detectados.

  20. Rb-Sr measurements on metamorphic rocks from the Barro Alto Complex, Goias, Brazil

    International Nuclear Information System (INIS)

    Fuck, R.A.; Neves, B.B.B.; Cordani, U.G.; Kawashita, K.

    1988-01-01

    The Barro Alto Complex comprises a highly deformed and metamorphosed association of plutonic, volcanic, and sedimentary rocks exposed in a 150 x 25 Km boomerang-like strip in Central Goias, Brazil. It is the southernmost tip of an extensive yet discontinuous belt of granulite and amphibolite facies metamorphic rocks which include the Niquelandia and Cana Brava complexes to the north. Two rock associations are distinguished within the granulite belt. The first one comprises a sequence of fine-grained mafic granulite, hypersthene-quartz-feldspar granulite, garnet quartzite, sillimanite-garnet-cordierite gneiss, calc-silicate rock, and magnetite-rich iron formation. The second association comprises medium-to coarse-grained mafic rocks. The medium-grade rocks of the western/northern portion (Barro Alto Complex) comprise both layered mafic rocks and a volcanic-sedimentary sequence, deformed and metamorphosed under amphibolite facies conditions. The fine-grained amphibolite form the basal part of the Juscelandia meta volcanic-sedimentary sequence. A geochronologic investigation by the Rb-Sr method has been carried out mainly on felsic rocks from the granulite belt and gneisses of the Juscelandia sequence. The analytical results for the Juscelandia sequence are presented. Isotope results for rocks from different outcrops along the gneiss layer near Juscelandia are also presented. In conclusion, Rb-Sr isotope measurements suggest that the Barro Alto rocks have undergone at least one important metamorphic event during Middle Proterozoic times, around 1300 Ma ago. During that event volcanic and sedimentary rocks of the Juscelandia sequence, as well as the underlying gabbro-anorthosite layered complex, underwent deformation and recrystallization under amphibolite facies conditions. (author)

  1. Simulación clínica de alto realismo: una experiencia en el pregrado

    Directory of Open Access Journals (Sweden)

    Javier Riancho

    Full Text Available Introducción. La simulación con modelos de alto realismo se utiliza a menudo en la formación de los profesionales sanitarios. Sin embargo, son escasas las experiencias en el pregrado. El objetivo de este trabajo fue conocer la factibilidad y la aceptación de su aplicación con estudiantes de sexto curso de la licenciatura de Medicina. Materiales y métodos. Se diseñaron ocho escenarios que simulaban problemas clínicos frecuentes para su desarrollo con maniquíes de alto realismo. Los estudiantes se dividieron en grupos de 6-8 sujetos, cada uno de los cuales atendió dos casos durante 30 minutos. Posteriormente se llevó a cabo un análisis reflexivo durante 25-40 minutos. La actividad se repitió en dos años consecutivos. Al final se recabó la opinión de los estudiantes mediante encuestas anónimas. Resultados. La actividad fue valorada muy positivamente por los estudiantes, quienes la consideraron como "útil" (4,8 y 4,9 puntos sobre 5 e "interesante" (4,9 y 4,9 puntos. El tiempo preciso para preparar cada escenario fue de unas 3 horas. Fueron necesarias una jornada completa de un profesor, un técnico y un enfermero para que un colectivo de unos 40 estudiantes se expusiera a dos casos clínicos. Conclusiones. Esta experiencia piloto sugiere que la simulación de alto realismo es factible en el pregrado, supone un consumo razonable de recursos y tiene una elevada aceptación por parte de los estudiantes. No obstante, se necesitan otros estudios que confirmen la impresión subjetiva de que resulta útil para potenciar el aprendizaje de los alumnos y su competencia clínica.

  2. Estudio del balance energético en velocistas de alto rendimiento

    OpenAIRE

    Lorente Gutiérrez, Jesús

    2015-01-01

    El objetivo de este estudio fue evaluar el balance energético en tres atletas de alto rendimiento durante 28 días, que coincidieron con el periodo competitivo de pista cubierta. La ingesta energética fue estudiada a partir de registros alimentarios durante los 28 días. Del mismo modo, el gasto energético fue estimado por tres métodos, mediante registros de actividad durante 28 días, mediante el estudio del ritmo metabólico basal estudiado por calorimetría indirecta, aplicándole el fa...

  3. Manual de auditoría interna para Instituto de Altos Estudios Nacionales

    OpenAIRE

    Bungacho Lamar, Fredy, Dr.

    2010-01-01

    La Ley Orgánica de Administración Financiera y Control responsabiliza a cada institución del Estado la implementación y aplicación del Sistema de Control Interno con la finalidad de precautelar los recursos públicos. Este trabajo investigativo sirve como guía para unificar los procedimientos, en la ejecución de las Auditoría de los profesionales que integren la Unidad de auditoría Interna del Instituto de altos Estudios Nacionales. Este Manual de Auditoría Interna, se compone de 6 capí...

  4. Assessing impact of hunting mammals in Alto Itaya river basin, Peruvian Amazon

    OpenAIRE

    Aquino, Rolando; Terrones, C.; Navarro, R.; Terrones, Wagner

    2013-01-01

    En el presente trabajo se informa sobre la abundancia, presión de caza y el impacto de la caza en mamíferos que habitan los bosques de la cuenca del río Alto Itaya. La información procede de censos por transectos y registros de caza llevados a cabo en seis comunidades. Entre los mamíferos de caza, el choro (Lagothrix poeppigii Schinz) fue el más abundante con 15,4 individuos/km², mientras que el mono aullador (Alouatta seniculus Linnaeus) y el venado colorado (Mazama americana Erxleben) fuero...

  5. PARSJAD, il Parco Archeologico dell’Alto Adriatico: un luogo diffuso, unito dalla tecnologia

    Directory of Open Access Journals (Sweden)

    Emilia Buniotto

    2014-05-01

    Full Text Available Eight partners, coordinated by the Veneto Region, are working on an ambitious project with an innovative approach and tools, and with the ability to conserve content and exploit the immense archaeological heritage of the area concerned.This was the birth of the Parco Archeologico dell’Alto Adriatico (Upper Adriatic Archaeological Park, a project funded by the Italy‐Slovenia 2007-2013 Cooperation Programme, with the aim of tracing a unified and cross-border pathof knowledge running from the coast of Emilia to the one in Slovenia.

  6. Panstrongylus megistus em ecótopos artificiais de ilhas do Alto Rio Paraná

    Directory of Open Access Journals (Sweden)

    Guilherme Ana Lucia Falavigna

    2001-01-01

    Full Text Available Em resposta a denúncias de triatomíneos em ilhas do Alto Rio Paraná foram investigados 145 ecótopos artificiais e 4 (2,8% deles encontravam-se infestados: residência, "clube", ex-escola e monte de madeira. Foram analisados 17 de 35 P. megistus coletados; 12 (70,6% apresentavam-se infectados por Trypanosoma cruzi. Ave e roedor constituíram as fontes alimentares mais comuns. Todos os exames sorológicos (56 de humanos, 18 de cães e 10 de gatos foram negativos.

  7. Sentidos de Vitória/Derrota para os Pais Segundo Atletas do Alto Rendimento

    OpenAIRE

    Amblard, Isabela; Cruz, Fatima Leite

    2015-01-01

    Este estudo compreendeu as representações sociais da vitória/derrota para os pais segundo atletas-adolescentes do esporte de alto rendimento, na cidade do Recife. A adolescência é compreendida a partir da Psicologia Social-histórica, e o embasamento teórico-metodológico da Teoria das Representações Sociais abordou os sujeitos em diferentes contextos socioculturais, lugares de pertencimento, experiências, crenças, saberes e sentimentos compartilhados. Adotou-se a perspectiva pluri metodológica...

  8. Projeto : Plano de promoção para os roteiros municipais do Alto Alentejo

    OpenAIRE

    Dimas, Alicia

    2012-01-01

    Dissertação de Mestrado em Marketing e Promoção Turística apresentada à ESTM - Escola Superior de Turismo e Tecnologia do Mar do Instituto Politécnico de Leiria O presente projeto pretende delinear as linhas mestras de um plano de promoção para o produto Roteiros Municipais. O produto, cujo objetivo é auxiliar a atividade turística na região do Alto Alentejo (Portugal), foi colocado recentemente no mercado sem qualquer estratégia de marketing associada – este projeto pretende preencher ess...

  9. Invernaderos sostenibles para la producción de hortalizas en zonas alto andinas del Cusco

    OpenAIRE

    Zanabria Pacheco, Pedro Fortunato

    2015-01-01

    La investigación tiene como objetivo determinar la importancia en el uso de los invernaderos sostenibles para la producción de hortalizas en las zonas alto andinas del Curso. Para ello, se han diseñado y construido dos prototipos de invernaderos a 3330 msnm, variando la orientación y forma del techo, permitiendo la producción de hortalizas en la estación fría. A la vez está investigación servirá como base para aplicar el proyecto sobre la tecnología de producción sostenible de hortalizas bajo...

  10. Trastorno de espectro autista de alto funcionamiento y su relación con la familia

    OpenAIRE

    González Villafáñez, María Felisa

    2014-01-01

    El objetivo de este trabajo consiste en analizar las dificultades que tienen los adolescentes con Trastorno del Espectro Autista de Alto Funcionamiento (TEA-AF), en sus relaciones sociales y familiares. Este análisis ha requerido la revisión de las diversas definiciones y teorías explicativas del citado trastorno. A su vez también se describen las terapias conocidas hasta hoy para crear un programa de apoyo a los familiares (padres, hermanos, abuelos…) que se relacionan con dicho adolescente....

  11. Prevalencia de trastornos psicológicos en deportistas españoles de alto rendimiento

    OpenAIRE

    Marí Cortés, Josep; Pérez Recio, Guillermo

    1997-01-01

    El artículo compara la prevalencia de psicopatologías en una muestra de 1376 deportistas españoles de alto rendimiento con la incidencia de las mismas alteraciones psicológicas en la población general. Para explicar la prevalencia hallada en la muestra de deportistas, se sugieren y analizan tres hipótesis (la autoselección, el efecto psicológico beneficioso la práctica de actividad física y la generalización, a los conflictos personales, de las pautas de enfrentamiento que han resultado previ...

  12. Conservation and public presentation of the argaric site of Castellón Alto (Galera, Granada

    Directory of Open Access Journals (Sweden)

    Rodríguez-Ariza, M. Oliva

    2000-12-01

    Full Text Available The magnificent preservation of the archaeological site of Castellón Alto permitted reconstruction of the urbanism of this settlement and the life of its inhabitants. In addition to the necessary conservation, two interventions have been carried out with the principal objective of facilitating access, visiting, and the understanding of the site by the majority of the public. The first intervention happened in 1989 and the main task was centered on the consolidation, restoration, and delimiting of the archaeological bed. The second one happened in 1997 and was centered in the consolidation and reconstruction of both a hut and two tombs. With the opening of the Archaeological Museum of Galera, the cultural and touristic contribution of Castellón Alto will be complete. It will provide an interpretation of this prehistoric village, as well as the Argaric culture in general and all the other archaeological sites of the area.

    La magnífica conservación del registro arqueológico del Castellón Alto permitía reconstruir el urbanismo del poblado y la vida de estas poblaciones. Se han efectuado dos actuaciones con el objetivo principal de facilitar, además de la necesaria conservación, el acceso, la visita y la comprensión del poblado prehistórico por parte de un público mayoritario. La primera actuación se realizó en 1989 y los trabajos se centraron principalmente en la consolidación, restauración y cerramiento del área del yacimiento. La segunda se realizó en 1997 y se centró en el acondicionamiento y reconstrucción de una cabaña y dos sepulturas. La oferta turística y cultural que ofrece el Castellón Alto se completará con la próxima apertura del Museo Arqueológico de Galera, donde se efectuará una interpretación de este poblado y de la cultura argárica, así como del resto de yacimientos de la zona.

  13. Grave number 121 of the argaric site of Castellón Alto (Galera, Granada

    Directory of Open Access Journals (Sweden)

    Molina, Fernando

    2003-06-01

    Full Text Available A new grave with partly mummified bodies was discovered during fieldwork to prepare the argaric site of Castellón Alto for public visits. Timber slabs and a dry stone wall seal the artificial cave preserving the interior. The human bones belong to one adult and one infant, both with preserved hair and skin fragments. The grave goods comprise several pottery vessels, one dagger, one ax with wooden handle, metal ornaments and fragments of flax and possibly wool.

    Recientes excavaciones en el yacimiento argárico de Castellón Alto con motivo de los trabajos de acondicionamiento para su visita publica han permitido descubrir una sepultura con restos humanos momificados en su interior. La sepultura de tipo covacha se encontraba sellada por tablones de madera y un muro de mampostería. En el interior aparecieron un individuo adulto y un infantil que conservan restos de pelo y piel. El ajuar se compone de varias vasijas cerámicas, un puñal, una azuela con mango de madera y adornos en metal, así como restos de lino y posiblemente lana.

  14. Litho-structural and geophysics features of the Alto Paranaiba Uplift

    International Nuclear Information System (INIS)

    Hasui, Y.

    1991-01-01

    The Alto Paranaiba Uplift (APU) is an almost elliptical tectonic feature of the Western Minas Gerais/Southern Goias region, which was active mostly during the Cretaceous. It separated the Parana Basin, during the formation of the Sao Bento, Uberaba and Bauru sequences, from the Alto-Sanfranciscana Basin, at the time of formation of the Areado, Patos, Capacete and Urucuia sequences. The Bouguer anomaly data indicate that the APU developed at the southwestern border of the ancient Brasilia crustal block and is represented by an almost elliptical gravity high of 15 mgal, locally disturbed by positive and negative the presence of important lineaments of a NW-SE set, mostly crossing the southwestern half of the APU. The APU development, the magmatism and the lateral basin formation involved reactivation of preexisting discontinuities and are related to a mantle plume. The tectonic development was aborted at the uplift stage during Cretaceous, after the deposition of the Bauru and Urucuia sequences, as is indicated by the Pratinha peneplane, now elevated at about 1.100 m altitude, which sculpture ended at the beginning of the Tertiary. The APU is one tectonic feature like other similar anomalies also aborted in the uplift stage or in the rift stage, which developed in Southern Brazil during the time of Atlantic Ocean opening. (author)

  15. Control Neuroborroso en Red. Aplicación al Proceso de Taladrado de Alto Rendimiento

    Directory of Open Access Journals (Sweden)

    Agustín Gajate

    2009-01-01

    Full Text Available Resumen: Este trabajo muestra el diseño y la implementación de un sistema neuroborroso para el modelado y control en red de un proceso de taladrado de alto rendimiento. El sistema neuroborroso considerado en este estudio es el conocido como Adaptive Network based Fuzzy Inference System (ANFIS, en el que las reglas borrosas se obtienen a partir de datos entrada/salida. Para el diseño del sistema de control se ha elegido el paradigma del control por modelo interno. Los resultados obtenidos son positivos tanto en la simulación como en la aplicación al control en red de la fuerza de corte. Desde el punto de vista técnico, se aumenta la tasa de arranque de material y al mismo tiempo se garantiza un aprovechamiento efectivo de la vida útil de la herramienta de corte. Este buen comportamiento del sistema de control neuroborroso basado en control por modelo interno se ha verificado por medio de varias cifras de mérito. Palabras clave: sistemas neuroborrosos, control por modelo interno, control en red, taladrado de alto rendimiento

  16. Structure of neutron rich nuclei of Germanium and Gallium beyond N equals 50 at Alto

    International Nuclear Information System (INIS)

    Lebois, M.

    2008-09-01

    The gamma rays following the beta decay of the following very neutron-rich isotopes: 82,83,84 Ga produced by photo-fission, have been studied at the newly built ISOL facility in Orsay: ALTO. In ALTO the interaction of an electron beam with U 238 target generates a continuous spectra of Bremsstrahlung gamma radiation that triggers U 238 fission. The fission fragments are then ionized, extracted and mass-separated. The analysis of the data has shown the existence of an isomer in 31 84 Ga 53 and has enabled us to confirm known results on 32 83 Ge 51 energy levels including the gamma transition between the 1/2+ state at 247,7 KeV and the fundamental state. We have also proposed the first energy level scheme for 33 84 As 51 . In order to understand the structure of the nucleus we have used the Thankappan and True model that gives a description of the coupling between the pair-pair core (half-magical) and the single nucleon. This model applied to the N=51 chain ( 38 89 Sr 51 , 36 87 Kr 51 , 34 85 Se 51 , 32 83 Ge 51 and 30 81 Zn 51 ) has allowed us to see the main features of odd isotope structure. We have also confirmed previous results concerning the nature of the states in the following decay 31 83 Ga 52 → 32 83 Ge 51

  17. A model of Alto Lazio boiling water reactor using the LEGO code balance of plant simulation

    International Nuclear Information System (INIS)

    Spelta, S.; Garbossa, G.B.

    1989-01-01

    An extensive effort has been made at the Italian National Electricity Board (ENEL) to construct and validate a LEGO model capable of simulating the operational transients of the Alto Lazio Nuclear Station, a two twin-units site with BWR/6 class reactors, rated at 2894 MWt and with Mark III containment. LEGO is a modular package developed at the Research and development Department of the Italian National Electricity Board (CRA-ENEL) for computer aided modeling of fossil-fired and nuclear steam power plants. In this paper a system analysis model capable of describing steady-state and transient performance of the Balance of Plant (BOP) of the Alto Lazio Power Station is presented. This is one of two companion papers devoted to the description of the overall plant model including both the Nuclear Steam Supply System (NSSS) and the BOP. In the paper, after a brief summary of the main LEGO characteristics, a description of the BOP lay-out is presented. The overall model, which has been set-up, including control systems and automation, is very detailed and consists of almost 2000 differential or algebraic equations. After a brief description of the mathematical model, two significant transients obtained using the overall model are presented and discussed

  18. Conservation and valorisation of Giovanni Boccaccio’s house museum in Certaldo Alto

    Directory of Open Access Journals (Sweden)

    Massimo Gennari

    2012-04-01

    Full Text Available The architectural restoration and functional redevelopment of Boccacio’s house in Certaldo Alto (Florence, has been carried out between 2006 and 2007 and finalized in 2011, including the reconstruction of the garden next to the house. The program which has been characterized by a strong civic, social and cultural involvement, is lead by the Ente Nazionale G. Boccaccio in partnership whit the local administration and aims at contributing to the valorization of the historical, architectural and cultural heritage of the historic center of Certaldo Alto. Valorization here is intended as a functional integration and synergy between predominantly cultural activities. The aim is to achieve the best results in terms of social development as well as intellectual growth within a virtuous economy, and therefore the construction of a complementary model for cultural assets in general. A model where the single cultural elements (museums, libraries, workrooms, exhibitions, auditorium, etc.. represent only the intersections of a wider net system established through the process of communication and exchange with the institutions, publics or privates, that operate in the sectors of research, experimentation, education and information. This means that the management of cultural assets will now aim mainly at the interaction between its components and nationals as well as international structures of education and research, institutes for the social and economical development and innovative business structures in the fields of communication and cultural and sustainable tourism. This establishes an additional value of his still underestimated significance.

  19. Saúde reprodutiva e mulheres indígenas do Alto Rio Negro

    Directory of Open Access Journals (Sweden)

    Marta Azevedo

    Full Text Available O presente artigo descreve e analisa as concepções próprias das mulheres indígenas do Alto Rio Negro sobre saúde reprodutiva, relacionando-as a indicadores de fecundidade. As informações qualitativas apontam para um conhecimento detalhado e complexo que as mulheres indígenas dessa região possuem sobre seu corpo e os cuidados com sua saúde. Os níveis e padrões etários da fecundidade estão relacionados com a etnia das mulheres, portanto, aos sistemas tradicionais de cuidados com a saúde desses povos. A pesquisa foi desenvolvida entre 1997 e 2003, na região de Iauaretê, Terra Indígena Alto Rio Negro (AM, e teve como primeira fonte de dados o Censo Indígena Autônomo do Rio Negro - CIARN-, levado a efeito pela Federação das Organizações Indígenas do Rio Negro - FOIRN - em 1992.

  20. Numerical modelling of Alto Verde landslide using the material point method

    Directory of Open Access Journals (Sweden)

    Marcelo Alejandro Llano-Serna

    2015-01-01

    Full Text Available Finalizando el año 2008 en la ciudad de Medellín, Colombia, ocurrió un deslizamiento de tierra en la urbanización Alto Verde provocando la muerte de doce personas y la destrucción de seis viviendas. Los deslizamientos se destacan por el elevado nivel de deformaciones en una masa de suelo. El presente trabajo utilizó el método del punto material (MPM, método basado en partículas que utiliza una doble discretización Lagrangiano-Euleriana. La doble discretización genera un marco numérico robusto que permite la simulación de grandes distorsiones. El modelo numérico planteó una simplificación de las condiciones geotécnicas, morfológicas y estructurales de las edificaciones envueltas en Alto Verde. El estado de deformación final de la simulación se acomodó satisfactoriamente a las características geométricas finales observadas en campo. Los resultados obtenidos generan aplicaciones como el diseño de barreras, análisis de riesgo o la determinación de la distancia mínima de retiro a una ladera susceptible de deslizamiento.

  1. Aesthetic Communication and Intercultural Perspective. A Qualitative Analysis of Aesthetic Perceptions of the Brand "Südtirol/Alto Adige"

    Directory of Open Access Journals (Sweden)

    Vincenzo Bua

    2009-01-01

    Full Text Available In the qualitative study of mental associations with the brand picture "Südtirol/Alto Adige" different images of the region among German speaking, Italian speaking and bilingually grown up South Tyroleans were analysed. The research interest was focused on the communalities and differences in these associations in order to identify potentially conflicting positions between the two major language groups in Südtirol/Alto Adige. In this paper the method is demonstrated which was used to display and investigate the emotional and cognitive contents of the images to Südtirol/Alto Adige from the point of view of different socio-cultural groups. Additionally selected results connected to the perception of the brand in the multilingual province Südtirol/Alto Adige are shown. Against the background of the outlined study the following questions are dealt with in this article: How is the special design of the brand picture perceived among the different socio-cultural groups in Alto Adige/Südtirol with respect to intercultural communication processes? Which meaning can be attributed to the historical heritage of the language groups in the analysis? URN: urn:nbn:de:0114-fqs0901323

  2. El deslizamiento de Palo Alto, Turrialba, Costa Rica : apuntes para su estudio

    Directory of Open Access Journals (Sweden)

    Peraldo Huertas, Giovanni

    2015-12-01

    Full Text Available En este trabajo se busca caracterizar, desde un punto de vista geomorfológico y geológico, el deslizamiento de Palo Alto, en el contexto de los megaprocesos de inestabilidad de laderas presentes en las laderas del río Reventazón. El corredor del río Reventazón, entre Turrialba y Siquirres, muestra una serie de procesos complejos de remoción en masa, que generan morfologías típicas de procesos de deslizamiento, tan continuas que dan una apariencia morfológica caótica, donde es difícil definir patrones de movimiento del terreno. El área de inestabilidad de Palo Alto se reconoce fácilmente incluso en el mapa topográfico correspondiente a escala 1:50 000, pues muestra una típica forma en herradura. Los límites del deslizamiento están bien marcados mediante escarpes bien definidos en campo, pero los extremos de las coronas laterales hacia el oeste se desdibujan debido, entre otras cosas, a que en esos sectores queda indefinido el límite al norte con el área de inestabilidad compleja de Bonilla y al sur con el área similar de Guayabo - Lajas. Se efectuó una fotointerpretación del área de estudio, mediante la revisión de fotos aéreas de la línea de vuelo Orosi-Pejibaye, escala 1:20 000 del año 1988, así como fotografías aéreas del proyecto Terra 1998, con el fin de observar posibles cambios en los procesos erosivos, así como en la forma del deslizamiento. Posteriormente, se realizó trabajo de campo para revisar la morfología fotointerpretada, analizar la conformación geológica a nivel de litología y estructura y así afinar la interpretación final de la geomorfología del área inestable de Palo Alto. Desde un punto de vista geológico, el área de estudio está compuesta por rocas sedimentarias del Neógeno, tales como la Fm. Uscari (Mioceno y las formaciones Suretka y Fm. Doán (Plioceno; además de aglomerados que posiblemente se relacionan al volcanismo holoceno de la cordillera volcánica Central. Mediante an

  3. Changing markets - Medicinal plants in the markets of La Paz and El Alto, Bolivia.

    Science.gov (United States)

    Bussmann, Rainer W; Paniagua Zambrana, Narel Y; Moya Huanca, Laura Araseli; Hart, Robbie

    2016-12-04

    Given the importance of local markets as a source of medicinal plants for both healers and the population, literature on market flows and the value of the plant material traded is rather scarce. This stands in contrast to wealth of available information for other components of Bolivian ethnobotany. The present study attempts to remedy this situation by providing a detailed inventory of medicinal plant markets in the La Paz-El Alto metropolitan area, hypothesizing that both species composition, and medicinal applications, have changed considerably over time. From October 2013-October 2015 semi-structured interviews were conducted with 39 plant vendors between October 2013 and October 2015 in the Mercado Rodriguez, Mercado Calle Santa Cruz, Mercado Cohoni, Mercado Cota Cota, and Mercado Seguencoma and Mercado El Alto in order to elucidate more details on plant usage and provenance. The results of the present study were then compared to previous inventories of medicinal plants in La Paz and El Alto studies to elucidate changes over time and impact of interview techniques. In this study we encountered 163 plant species belonging to 127 genera and 58 families. In addition, 17 species could not be identified. This species richness is considerably higher than that reported in previous studies (2005, 129 species of 55 families; 2015, 94 identified species). While the overall distribution of illness categories is in line with older reports the number of species used per application, as well as the applications per species, were much higher in the present study. Overall, informant consensus was relatively low, which might be explained by the large number of new species that have entered the local pharmacopoeia in the last decade, although some species might simply have been missed by previous studies. In course of the present study it became apparent that even well known species might often be replaced by other apparently similar but botanically unrelated species due to

  4. CALIFA, the Calar Alto Legacy Integral Field Area survey. IV. Third public data release

    Science.gov (United States)

    Sánchez, S. F.; García-Benito, R.; Zibetti, S.; Walcher, C. J.; Husemann, B.; Mendoza, M. A.; Galbany, L.; Falcón-Barroso, J.; Mast, D.; Aceituno, J.; Aguerri, J. A. L.; Alves, J.; Amorim, A. L.; Ascasibar, Y.; Barrado-Navascues, D.; Barrera-Ballesteros, J.; Bekeraitè, S.; Bland-Hawthorn, J.; Cano Díaz, M.; Cid Fernandes, R.; Cavichia, O.; Cortijo, C.; Dannerbauer, H.; Demleitner, M.; Díaz, A.; Dettmar, R. J.; de Lorenzo-Cáceres, A.; del Olmo, A.; Galazzi, A.; García-Lorenzo, B.; Gil de Paz, A.; González Delgado, R.; Holmes, L.; Iglésias-Páramo, J.; Kehrig, C.; Kelz, A.; Kennicutt, R. C.; Kleemann, B.; Lacerda, E. A. D.; López Fernández, R.; López Sánchez, A. R.; Lyubenova, M.; Marino, R.; Márquez, I.; Mendez-Abreu, J.; Mollá, M.; Monreal-Ibero, A.; Ortega Minakata, R.; Torres-Papaqui, J. P.; Pérez, E.; Rosales-Ortega, F. F.; Roth, M. M.; Sánchez-Blázquez, P.; Schilling, U.; Spekkens, K.; Vale Asari, N.; van den Bosch, R. C. E.; van de Ven, G.; Vilchez, J. M.; Wild, V.; Wisotzki, L.; Yıldırım, A.; Ziegler, B.

    2016-10-01

    This paper describes the third public data release (DR3) of the Calar Alto Legacy Integral Field Area (CALIFA) survey. Science-grade quality data for 667 galaxies are made public, including the 200 galaxies of the second public data release (DR2). Data were obtained with the integral-field spectrograph PMAS/PPak mounted on the 3.5 m telescope at the Calar Alto Observatory. Three different spectral setups are available: I) a low-resolution V500 setup covering the wavelength range 3745-7500 Å (4240-7140 Å unvignetted) with a spectral resolution of 6.0 Å (FWHM) for 646 galaxies, II) a medium-resolution V1200 setup covering the wavelength range 3650-4840 Å (3650-4620 Å unvignetted) with a spectral resolution of 2.3 Å (FWHM) for 484 galaxies, and III) the combination of the cubes from both setups (called COMBO) with a spectral resolution of 6.0 Å and a wavelength range between 3700-7500 Å (3700-7140 Å unvignetted) for 446 galaxies. The Main Sample, selected and observed according to the CALIFA survey strategy covers a redshift range between 0.005 and 0.03, spans the color-magnitude diagram and probes a wide range of stellar masses, ionization conditions, and morphological types. The Extension Sample covers several types of galaxies that are rare in the overall galaxy population and are therefore not numerous or absent in the CALIFA Main Sample. All the cubes in the data release were processed using the latest pipeline, which includes improved versions of the calibration frames and an even further improved image reconstruction quality. In total, the third data release contains 1576 datacubes, including ~1.5 million independent spectra. Based on observations collected at the Centro Astronómico Hispano Alemán (CAHA) at Calar Alto, operated jointly by the Max-Planck-Institut für Astronomie (MPIA) and the Instituto de Astrofísica de Andalucía (CSIC).The spectra are available at http://califa.caha.es/DR3

  5. Development of a new surface ion-source and ion guide in the ALTO project

    International Nuclear Information System (INIS)

    Cuong, P.V.

    2009-12-01

    The present work is dedicated to the ALTO project which is the production of neutron-rich gallium isotopes by the ISOL thick-target technique using photo-fission and a surface ion source. We aim at the study of the structure of 82 Ge, 83 Ge, 84 Ge via the β decay of 82 Ga, 83 Ga, and 84 Ga. We focus on the development of a new surface ion source made from materials with a high work function φ which can give high ionisation efficiencies for elements with low ionisation potentials, like alkaline as well as gallium and indium. Tungsten, rhenium and iridium are considered as good candidates for a surface ionizer because the Saha-Langmuir equation indicates high surface ionisation efficiencies for these materials. This has motivated us to equip the surface ion source at ALTO with rhenium and iridium-coated rhenium ionizer tubes of the same dimensions as the surface ion source at ISOLDE. We performed a test experiment to measure the ionisation efficiency for gallium. We also built a simulation code for the ionisation efficiency of the different surface ionisation sources (different materials and dimensions). On the other hand, for future nuclear structure studies of refractory elements such as cobalt or nickel, the ISOL technique with a thick target is no longer suitable. Indeed, the high melting point of these elements makes it difficult to volatilize and release them from a thick target. For such a situation, a technique based on thin targets is needed and the laser ion guide based on a gas cell to slow down, neutralize and stop the recoiling nuclear reaction products combined with a laser beam to re-ionize them selectively, seems a good choice. A code based on the Geant-4 tool-kit has been built to simulate the ionisation of the buffer gas. In this work, we also briefly show the results of the photo-fission yield measurements at ALTO. The fission fragments were ionized in a hot plasma ion source, mass separated and detected by germanium and scintillator detectors

  6. Fuel dynamics by using Landscape Ecology Indices in the Alto Mijares, Spain

    Science.gov (United States)

    Iqbal, J.; Garcia, C. V.

    2009-04-01

    Land abandonment in Mediterranean regions has brought about a number of management problems, being an increased wildfire activity prevalent among them. Agricultural neglect in highlands resulted in reduced anthropogenic disturbances and greater landscape homogeneity in areas such as the Alto Mijares in Spain. It is widely accepted that processes like forest fires, influence structure of the landscape and vice versa. Fire-prone Mediterranean flora is well adapted to this disturbance, exhibiting excellent succession capabilities; but higher fuel loads and homogeneous conditions may ally to promote vegetation recession when the fire regime is altered by land abandonment. Both succession and recession make changes to the landscape structure and configuration. However, these changes are difficult to quantify and characterize. If landscape restoration of these forests is a management objective, then developing a quantitative knowledge base for landscape fuel dynamics is a prerequisite. Four classified LandsatTM satellite images were compared to quantify changes in landscape structure between 1984 and 1998. An attempt is made to define landscape level dynamics for fuel development after reduced disturbance and fuel accumulation that leads to catastrophic fires by using landscape ecology indices. By doing so, indices that best describe the fuel dynamics are pointed. The results indicate that low-level disturbance increases heterogeneity, thus lowers fire hazard. No disturbance or severe disturbance increases homogeneity because of vegetation succession and may lead to devastating fires. These fires could be avoided by human induced disturbance like controlled burning, harvesting, mechanical works for fuel reduction and other silviculture measures; thus bringing in more heterogeneity in the region. The Alto Mijares landscape appears to be in an unstable equilibrium where succession and recession are at tug of war. The effects are evident in the general absence of the climax

  7. El chile poblano criollo en la cultura alimentaria del Alto Atoyac

    Directory of Open Access Journals (Sweden)

    Luis Joaquín Pérez Carrasco

    2017-01-01

    Full Text Available El chile poblano criollo producido en la re-gión Alto Atoyac en Puebla, forma parte de la cultura alimenticia de la población, junto con el maíz y el frijol. Ya sea en fresco o en seco es un componente fundamental en muy diver-sos platillos como: el mole poblano, los chiles en nogada, las rajas con huevo, por mencio-nar algunos. El objetivo del trabajo fue el en-tender las razones sociales y culturales de lo planteado e identificar la problemática del cultivo de chile poblano criollo y los factores que favorecen que los productores persistan en su cultivo en la región. Metodología. Se realizaron entrevistas estructuradas, siguien-do el método de muestreo por “bola de nieve” (Snowball, empleado frecuentemente en es-tudios con poblaciones marginales. Resulta-dos. El sistema de producción predominante en el Alto Atoyac, es el chile poblano criollo intercalado en árboles frutales, con superficies de siembra igual o menor a 100 m2, estrategia usada por los productores para diversificar el riesgo de las enfermedades del cultivo y con ello asegurar la sobrevivencia de sus tradicio-nes culinarias y la permanencia de su semilla con sus propias características. Limitaciones. El trabajo de investigación no pudo abarcar el rendimiento de chile poblano en la región y del perfil del productor. Conclusiones. El chi-le poblano criollo en el Alto Atoyac, se siem-bra en superficies pequeñas y condiciones de temporal, intercalado en árboles frutales y es afectado por la enfermedad pudrición radical o secadera. El productor continúa sembrando su semilla de chile poblano criollo, como estra-tegia para conservar sus tradiciones en la elabo-ración de los alimentos y mitigar en lo posible los daños ocasionados por las enfermedades.

  8. Valoración del deporte de alto rendimiento (gimnasia rítmica) en edades tempranas

    OpenAIRE

    Usero Gómez, Alba

    2014-01-01

    Comenzando por una introducción, en la cual se contextualiza el deporte y especialmente el de alto rendimiento, nos introduciremos en la cuestión de estudio, el deportista de élite y la preocupación por el comienzo en edades tempranas. Llevaremos a cabo este estudio, por medio de un análisis reflexivo de diversos autores y estudios que se sumergen en el deporte de alto rendimiento, especialmente en la infancia. Trataremos el objeto de estudio en relación a un deporte, la Gimnasia Rítmic...

  9. Eventos adversos relacionados à terapia ventilatória em recém-nascidos de alto risco

    OpenAIRE

    França, Débora Feitosa de

    2016-01-01

    Objetivou-se analisar os eventos adversos relacionados à terapia respiratória em recém-nascidos de alto risco de uma unidade neonatal. Trata-se de um estudo observacional, longitudinal e prospectivo, realizado em uma maternidade, unidade de referencia no Estado do Rio Grande do Norte para gravidez e nascimento de alto risco. Os dados foram coletados no período de abril a setembro 2016, após aprovação do projeto no Comitê de Ética em Pesquisa da UFRN com CAAE nº 51832415.0.0000.5537. A amostra...

  10. La fiesta xita: patrimonio biocultural mazahua de San Pedro el Alto, México

    Directory of Open Access Journals (Sweden)

    Alicia Y. Vásquez González

    2016-01-01

    Full Text Available Ante la crisis ambiental y de la modernidad, se propone conservar la riqueza cultural y biológica de la humanidad como patrimonio. Así, se valora y revalora el patrimonio vivo, como es la relación entre culturas y biodiversidad, que se manifiestan en paisajes y territorios de los pueblos originarios. Se propone la fiesta xita (viejos como patrimonio biocultural de la milpa mazahua. El estudio etnográfico se realizó en San Pedro el Alto, México. La fiesta xita es parte del patrimonio biocultural mazahua, mediante la cual se entretejen agrobiodiversidad y cultura, lo que permite que los mazahuas mantengan y desarrollen sus actividades sociales y culturales que han sido heredadas de generación en generación.

  11. Niveles subjetivos de estrés-recuperación en deportistas Costarricenses de alto rendimiento

    OpenAIRE

    Sánchez Ureña, M.Sc. Braulio; Ureña Bonilla, Pedro; Calleja González, Julio

    2014-01-01

    El objetivo del presente estudio fue determinar los niveles estrés-recuperación en deportistas costarricenses de alto rendimiento. Metodología: participaron un total de 239 sujetos, con una media de edad de 25,4 ± 4,8 años y con un promedio de 6,4 ± 4,6 años de entrenamiento en la primera división de su disciplina deportiva. Se utilizó la versión española del Cuestionario de Estrés-Recuperación para deportistas Resultados: los valores promedio para las variables relacionadas a la recuperación...

  12. Estudio preliminar de la fauna Amphibia del valle de Sibundoy, Alto Putumayo, Colombia

    Directory of Open Access Journals (Sweden)

    Jonh Jairo Mueses-Cisneros

    2004-07-01

    (Valle de Sibundoy y por localidades muestreadas, se hace una comparación con las faunas realizadas en el transecto Napo en Ecuador y en el transecto Montañita-Alto Gabinete en Caquetá y se presenta una clave taxonómica y una serie de fotografías para facilitar su  reconocimiento. El estudio además aporta cinco especies nuevas para la ciencia, amplía el rango altitudinal de otras ocho y presenta tres más para ser incluidas al listado general de las especies de anfibios de Colombia, las cuales habían sido ya anteriormente reportadas para el país por otros autores, pero no habían sido tenidas en cuenta en el último listado.

  13. Textiles para turistas: tejedoras y comerciantes en los Altos de Chiapas

    Directory of Open Access Journals (Sweden)

    Eugenia Bayona Escat

    2013-01-01

    Full Text Available El presente trabajo indaga en el papel que ocupan las mujeres indígenas como productoras y vendedoras de piezas textiles, consideradas artesanales y de tradición indígena, con alta demanda en el mercado turístico de la región de los Altos de Chiapas, México. La presencia del turismo en la zona ha provocado la consolidación de un complejo mercado local de textiles en el que se entrelazan tejedoras, distribuidoras y comerciantes, cadenas mercantiles y múltiples espacios de venta. A través de este protagonismo femenino y de la comercialización de lo “indígena”, el trabajo indaga en un contexto local que permite a las mujeres indígenas tomar nuevas posiciones sociales a la vez que integra aspectos globales sobre mercancías e imaginarios sociales.

  14. Fragilidade ambiental na bacia hidrográfica do Alto Parnaíba

    OpenAIRE

    Alves de Melo, Nivaneide

    2007-01-01

    Esta pesquisa desenvolveu estudos integrados sobre a bacia hidrográfica do Alto Parnaíba, no Piauí, considerando a atuação das atividades humanas sobre o ambiente natural, a fim de determinar o grau de alteração desse ambiente, a partir da presença antrópica neste local, além de propor ações para restabelecimento de uma situação de equilíbrio ambiental. Pois, quando os eventos sobre a paisagem são de origem antrópica e de orientação econômica, os impactos poderão causar dano...

  15. PANIC: A General-purpose Panoramic Near-infrared Camera for the Calar Alto Observatory

    Science.gov (United States)

    Cárdenas Vázquez, M.-C.; Dorner, B.; Huber, A.; Sánchez-Blanco, E.; Alter, M.; Rodríguez Gómez, J. F.; Bizenberger, P.; Naranjo, V.; Ibáñez Mengual, J.-M.; Panduro, J.; García Segura, A. J.; Mall, U.; Fernández, M.; Laun, W.; Ferro Rodríguez, I. M.; Helmling, J.; Terrón, V.; Meisenheimer, K.; Fried, J. W.; Mathar, R. J.; Baumeister, H.; Rohloff, R.-R.; Storz, C.; Verdes-Montenegro, L.; Bouy, H.; Ubierna, M.; Fopp, P.; Funke, B.

    2018-02-01

    PANIC7 is the new PAnoramic Near-Infrared Camera for Calar Alto and is a project jointly developed by the MPIA in Heidelberg, Germany, and the IAA in Granada, Spain, for the German-Spanish Astronomical Center at Calar Alto Observatory (CAHA; Almería, Spain). This new instrument works with the 2.2 m and 3.5 m CAHA telescopes covering a field of view of 30 × 30 arcmin and 15 × 15 arcmin, respectively, with a sampling of 4096 × 4096 pixels. It is designed for the spectral bands from Z to K S , and can also be equipped with narrowband filters. The instrument was delivered to the observatory in 2014 October and was commissioned at both telescopes between 2014 November and 2015 June. Science verification at the 2.2 m telescope was carried out during the second semester of 2015 and the instrument is now at full operation. We describe the design, assembly, integration, and verification process, the final laboratory tests and the PANIC instrument performance. We also present first-light data obtained during the commissioning and preliminary results of the scientific verification. The final optical model and the theoretical performance of the camera were updated according to the as-built data. The laboratory tests were made with a star simulator. Finally, the commissioning phase was done at both telescopes to validate the camera real performance on sky. The final laboratory test confirmed the expected camera performances, complying with the scientific requirements. The commissioning phase on sky has been accomplished.

  16. Sentidos de Vitória/Derrota para os Pais Segundo Atletas do Alto Rendimento

    Directory of Open Access Journals (Sweden)

    Isabela Amblard

    Full Text Available Este estudo compreendeu as representações sociais da vitória/derrota para os pais segundo atletas-adolescentes do esporte de alto rendimento, na cidade do Recife. A adolescência é compreendida a partir da Psicologia Social-histórica, e o embasamento teórico-metodológico da Teoria das Representações Sociais abordou os sujeitos em diferentes contextos socioculturais, lugares de pertencimento, experiências, crenças, saberes e sentimentos compartilhados. Adotou-se a perspectiva pluri metodológica com variados recursos de coleta e análise progressiva de dados. Participaram 101 atletas-adolescentes do esporte de alto rendimento, nas modalidades natação e vôlei. Os instrumentos utilizados foram questionários de associação livre e entrevistas semidirigidas. Na análise dos dados, o software EVOC e as técnicas de análise temática de conteúdo de Bardin. Identificamos as representações de vitória para os pais, nas dimensões: pessoal e motivacional, e afetivo-emocional e, nas representações sociais da derrota para os pais, além destas, a dimensão técnica. O sentido de vitória para os pais apareceu ampliado: o contexto esportivo, a escolarização, e o crescimento pessoal e profissional na vida. A derrota para os pais é representada como oportunidade de aprendizado e superação para o atleta-adolescente, porém, eles mostraram que necessitam do apoio afetivo de sua família para lidar com a autoculpabilização nas situações de fracasso.

  17. Adesão ao Tratamento em Gestação de Alto Risco

    Directory of Open Access Journals (Sweden)

    Fabíola Langaro

    Full Text Available No Brasil, aproximadamente 15% das gestações são de alto risco, sendo os diagnósticos de diabetes gestacional e hipertensão as causas mais frequentes dessa condição. Para a efetividade dos tratamentos indicados nesses casos, bem como alcance de desfechos favoráveis, é essencial a adesão da paciente às recomendações fornecidas pelas equipes de saúde, o que torna fundamental a avaliação desse indicador. A pesquisa apresentada avaliou a adesão de participantes de um programa de atendimento interdisciplinar a gestantes de alto risco desenvolvido em um hospital geral privado por meio de três instrumentos: Questionário Morisky-Green de adesão ao uso de medicação, Questionário de Adesão ao Tratamento e Pergunta descritiva de avaliação qualitativa. Durante oito meses, 83 gestantes responderam aos questionários, que possibilitaram identificar níveis de adesão ao longo do tempo de participação no programa, situações de não adesão mais frequentes, bem como variáveis que interferem nas medidas de adesão ao uso de medicação e ao tratamento global. Considera-se que os índices levantados são passíveis de uso como indicadores clínicos e gerenciais, possibilitando a comprovação da efetividade e melhoria constante das rotinas de saúde. Tais mecanismos são úteis para definição de protocolos, discussão de casos clínicos e mesmo para feedbackàs próprias pacientes.

  18. 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.

  19. El período intermedio temprano en el Alto Piura: avances del proyecto arqueológico 'Alto Piura' (1987-1990

    Directory of Open Access Journals (Sweden)

    1991-01-01

    Full Text Available LA PERIODE DE L’INTERMEDIAIRE RECENT DANS LE HAUT PIURA : RESULTATS PRELIMINAIRES DU PROJET ARQUEOLOGIQUE “HAUT PIURA” (1987-1990. Ce travail présente les résultats préliminaires du projet arquéologique “Haut Piura” avec le concours de l’Université Catholique du Pérou et dirigé par l’auteur. L’accent est mis sur les informations concernant les séquences stratigraphiques et l’architecture. Les informations obtenues pour les analyses encore incomplètes du matériel céramique, métallurgique, osseux et végétal permettent d’établir la relation avec la problématique sur les styles Vicús et Vicús-Moche. Se presentan los resultados preliminares del Proyecto Arqueológico “Alto Piura”, auspiciado por la Pontificia Universidad Católica del Perú y dirigido por el autor. Se enfatizan los datos referentes a las secuencias estratigráficas y la arquitectura. Los datos obtenidos por análisis aún incompletos del material cerámico, metalúrgico, óseo y vegetal permiten la vinculación con la problemática referente a los estilos Vicús y Vicús-Moche. EARLY INTERMEDIATE PERIOD IN UPPER PIURA: “UPPER PIURA' ARCHAEOLOGICAL PROJECT (1987-1990. Preliminary results of the “Upper Piura” archaeological Project are introduced under the promotion of the Pontificia Universidad Católica del Perú, and the direction of the author. All data referred to stratigraphy sequences and architecture is enhanced on the just mencioned. The outcome obtained from the analysis, still uncompleted of pottery, metallurgy, osseous and botanical materials, allows the relationship when focusing the problematic regarding the Vicus and Vicus-Moche styles.

  20. 77 FR 58203 - AER Energy Resources, Inc.; Alto Group Holdings, Inc.; Bizrocket.Com Inc.; Fox Petroleum, Inc...

    Science.gov (United States)

    2012-09-19

    ... SECURITIES AND EXCHANGE COMMISSION [File No. 500-1] AER Energy Resources, Inc.; Alto Group Holdings, Inc.; Bizrocket.Com Inc.; Fox Petroleum, Inc.; Geopulse Explorations Inc.; Global Technologies... accuracy of press releases concerning the company's revenues. 4. Fox Petroleum, Inc. is a Nevada...

  1. Entre aromas de incienso y pólvora : Los Altos de Jalisco, México, 1917-1940

    NARCIS (Netherlands)

    López Ulloa, José Luis

    2008-01-01

    This thesis focuses on the Mexican Revolution and on the opposition strategies followed by the opponents of the revolutionary regime who lived in the region known as Los Altos de Jalisco. In this particular region, the Catholic population, supported by the Clergy, was in constant conflict with the

  2. Comparison and validation of shallow landslides susceptibility maps generated by bi-variate and multi-variate linear probabilistic GIS-based techniques. A case study from Ribeira Quente Valley (S. Miguel Island, Azores)

    Science.gov (United States)

    Marques, R.; Amaral, P.; Zêzere, J. L.; Queiroz, G.; Goulart, C.

    2009-04-01

    Slope instability research and susceptibility mapping is a fundamental component of hazard assessment and is of extreme importance for risk mitigation, land-use management and emergency planning. Landslide susceptibility zonation has been actively pursued during the last two decades and several methodologies are still being improved. Among all the methods presented in the literature, indirect quantitative probabilistic methods have been extensively used. In this work different linear probabilistic methods, both bi-variate and multi-variate (Informative Value, Fuzzy Logic, Weights of Evidence and Logistic Regression), were used for the computation of the spatial probability of landslide occurrence, using the pixel as mapping unit. The methods used are based on linear relationships between landslides and 9 considered conditioning factors (altimetry, slope angle, exposition, curvature, distance to streams, wetness index, contribution area, lithology and land-use). It was assumed that future landslides will be conditioned by the same factors as past landslides in the study area. The presented work was developed for Ribeira Quente Valley (S. Miguel Island, Azores), a study area of 9,5 km2, mainly composed of volcanic deposits (ash and pumice lapilli) produced by explosive eruptions in Furnas Volcano. This materials associated to the steepness of the slopes (38,9% of the area has slope angles higher than 35°, reaching a maximum of 87,5°), make the area very prone to landslide activity. A total of 1.495 shallow landslides were mapped (at 1:5.000 scale) and included in a GIS database. The total affected area is 401.744 m2 (4,5% of the study area). Most slope movements are translational slides frequently evolving into debris-flows. The landslides are elongated, with maximum length generally equivalent to the slope extent, and their width normally does not exceed 25 m. The failure depth rarely exceeds 1,5 m and the volume is usually smaller than 700 m3. For modelling

  3. Zoneamento ambiental do polo de desenvolvimento agroindustrial do Alto Piranhas, Estado da Paraíba

    Directory of Open Access Journals (Sweden)

    J. S. Almeida

    2015-12-01

    Full Text Available Este trabalho teve como objetivo zonear os níveis de deterioração ambiental na paisagem entre os anos de 2001 e 2012, adotando os critérios da ecodinâmica nos municípios que compõe o polo de desenvolvimento agroindustrial do Alto Piranhas. Foram realizadas análises envolvendo a dinâmica da paisagem e da vulnerabilidade ambiental. A metodologia utilizada na pesquisa foi baseada em localizações pontuais, que inclui o processo de selecionar e combinar, através de procedimento de álgebra de mapas disponíveis em um SIG, cada variável geográfica contém diferenciação espacial e a combinação entre elas promove a subdivisão do espaço geográfico em regiões equiproblemáticas. Tomando-se por base as superposições dos mapas geológico, geomorfológico e pedológico foi efetuado o mapa de zoneamento ambiental, com informações que permitiram identificar as condições do meio natural e suas aptidões. Esses fatores foram comparados entre si, conforme a importância atribuída a elas. Os resultados indicaram que as áreas centrais concentram as classes com maiores riscos ambientais, como as instáveis (risco ambiental entre 60 e 80%, e as de instabilidade emergente (risco maior que 80. Já nas áreas distribuídas em toda a área de estudo encontra-se as áreas com risco ambiental entre 40 e 60% (instabilidade moderada. Com base na análise, percebe-se que a área de estudo possui um tênue equilíbrio por estar localizado em ambiente semiárido que pode ser rompido com facilidade com a intensificação das atividades agroindustriais.Environmental zoning polo agro industry development of Alto Piranhas, Paraíba StateAbstract: This study aimed to zone the levels of environmental deterioration in the landscape between the years 2001 and 2012, adopting the criteria of ecodynamics municipalities that make up the hub of agro-industrial development of the Alto Piranhas. Analyzes involving the dynamics of landscape and environmental

  4. Adsorción de metales pesados sobre lodos de horno alto

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    López-Delgado, A.

    1998-05-01

    Full Text Available Most of industrial liquid effluents have high contents of heavy metals. The recovery of these metals is environmental and economically interesting. In this work we study the use of sludge, a by-product of the steel industry, as an adsorbent for the removal of heavy metals from liquid effluents. The adsorption of Pb2+, Zn2+, Cd2+, Cu2+ and Cr3+ on the sludge was investigated by determination of adsorption isotherms. The effect of time, equilibrium temperature and concentration of metal solution on sludge adsorption efficiency was evaluated. The adsorption process was analysed using the theories of Freundlich and Langmuir and the thermodynamic values ΔG, ΔH and ΔS corresponding to each adsorption process were calculated. Blast furnace sludge was found to be an effective sorbent for Pb, Zn, Cd, Cu and Cr-ions within the range of ion concentrations employed.

    Los efluentes líquidos de la mayoría de los procesos industriales contienen una carga importante de metales pesados que, por motivos tanto económicos como medioambientales interesa recuperar. En este trabajo, se estudia la utilización de lodos procedentes de la depuración por vía húmeda de los gases de horno alto como soporte para la retención de metales pesados contenidos en efluentes líquidos. La adsorción de Pb2+, Zn2+, Cd2+, Cu2+ y Cr3+ sobre el lodo de horno alto se determina mediante la obtención de las isotermas de adsorción, variando la concentración de las soluciones metálicas y analizando la influencia del tiempo y de la temperatura de equilibrio en la capacidad de adsorción del lodo. Para describir el proceso de adsorción se consideraron las teorías de Freundlich y Langmuir y, posteriormente, se calcularon los valores termodinámicos ΔG, ΔH y ΔS, correspondientes a cada proceso de adsorción. Para todos

  5. The crust role at Paramillos Altos intrusive belt: Sr and Pb isotope evidence

    International Nuclear Information System (INIS)

    Ostera, H.A.; Linares, E; Haller, M.J; Cagnoni, M.C

    2001-01-01

    Paramillos Altos Intrusive Belt (PAIB) (Ostera, 1996) is located in the thick skinned folded-thrust belt of Malargue, southwestern Mendoza, Argentina. Geochemical, geochronologic and isotopic studies were carried out in it (Ostera 1996, 1997, Ostera et al. 1999; Ostera et al. 2000) and these previous papers suggested a minor involvement of the crust in the genesis of the PAIB. According with Ostera et al. (2000) it is composed by stocks, laccoliths, dykes and sills which range in composition from diorites to granodiorites, and from andesites to rhyolites, and divided in five Members, which range in age from Middle Miocene to Early Miocene: a- Calle del Yeso Dyke Complex (CYDC), with sills and dykes of andesitic composition (age: 20±2 Ma). b- Puchenque-Atravesadas Intrusive Complex (PAIC), composed by dykes and stocks ranging from diorites to granodiorites (age: 12.5±1 Ma). c- Arroyo Serrucho Stock (SAS), an epizonal and zoned stock, with four facies, with K/Ar and Ar/Ar dates of 10±1 and 9.5±0.5 Ma. d- Portezuelo de los Cerros Bayos (PCB), that includes porphyritic rocks of rhyolitic composition, of 7.5±0.5 Ma. e- Cerro Bayo Vitrophyres (CBV), with andesitic sills and dykes (age: 4.8±0.2 Ma). We present in this paper new Sr and Pb isotopes data that constrain the evolution of the PAIB (au)

  6. Contribution for geochronological evolution study of the Pianco-Alto Brigida fold belt system

    International Nuclear Information System (INIS)

    Brito Neves, B.B. de; Basei, M.A.S.; Van Schmus, W.R.

    1990-01-01

    The Proterozoic Painco-Alto Fold Belt is situated in the central portion of the Borborema Province and it probably is just a segment of a longer structural development encompassed between the Patos (N) and Pernambuco (S) lineaments. The geochronological study was carried out along a cross section in the central part of the belt (Paraiba State) where biotite-muscovite quartz schists are the predominating rock types, including intercalations of bi-modal volcanics, marbles and quartzites. These rocks were metamorphosed in the amphibolite facies, and they display a complex history of folding. Zircons of the acid volcanics (meta-rhyolytes where analysed through U/Pb method and they plot in a discordia diagram with superior intercept indicating ages around 1100 Ma. Whole rocks Rb/Sr analyses on the same meta-volcanics are indicating isochrons of 950Ma. These data are being respectively interpreted as ages of sedimentation (and volcanism) and regional metamorphism associated to the main (D sub(2)) phase of folding. One of the main purpose of this paper is to stress the importance of the ages around 950Ma, in the central domain of the Borborema Province, as result of regional folding and metamorphism. Some other occurence of ages in the 1000-900Ma range will be discussed as support for this interpretation from now on adopted. (author)

  7. Earth-based construction material field tests characterization in the Alto Douro Wine Region

    Science.gov (United States)

    Cardoso, Rui; Pinto, Jorge; Paiva, Anabela; Lanzinha, João Carlos

    2017-12-01

    The Alto Douro Wine Region, located in the northeast of Portugal, a UNESCO World Heritage Site, presents an abundant vernacular building heritage. This building technology is based on a timber framed structure filled with a composite earth-based material. A lack of scientific studies related to this technology is evident, furthermore, principally in rural areas, this traditional building stock is highly deteriorated and damaged because of the rareness of conservation and strengthening works, which is partly related to the non-engineered character of this technology and to the knowledge loosed on that technique. Those aspects motivated the writing of this paper, whose main purpose is the physical and chemical characterization of the earth-based material applied in the tabique buildings of that region through field tests. Consequently, experimental work was conducted and the results obtained allowed, among others, the proposal of a series of adequate field tests. At our knowledge, this is the first time field tests are undertaken for tabique technology. This information will provide the means to assess the suitability of a given earth-based material with regards to this technology. The knowledge from this study could also be very useful for the development of future normative documents and as a reference for architects and engineers that work with this technology to guide and regulate future conservation, rehabilitation or construction processes helping to preserve this important legacy.

  8. Aristocracias y dependientes en el Alto Ebro (siglos V-VIII

    Directory of Open Access Journals (Sweden)

    Santiago CASTELLANOS

    2009-12-01

    Full Text Available RESUMEN: El estudio de la documentación tardoantigua supone un avance en el conocimiento histórico y el debate historiográfico acerca de los múltiples problemas que presenta la Alta Edad Media en el Norte de la Península Ibérica. El autor profundiza en fuentes sobre la zona del Alto Ebro durante la Antigüedad tardía, al tiempo que proporciona un panorama social de tal ámbito, a fin de entender mejor el posterior mundo altomedieval, lejos de algunos modelos basados exclusivamente en fuentes altomedievales.ABSTRACT: The study of documents from late antiquity has led to progress in the historical knowledge and the historiographical debate surrounding the many problems presented by the Early Middle Ages in the north of the Iberian Peninsula. The author makes an in-depth study of sources from the Upper Ebro area during Late Antiquity, at the same time giving a social panorama of this same area, in order to better understand the subsequent early mediaeval world. This scene has turned out to be very different from models based exclusively on early mediaeval sources.

  9. Tabique walls composite earth-based material characterization in the Alto Douro wine region, Portugal

    Directory of Open Access Journals (Sweden)

    Rui CARDOSO

    2015-12-01

    Full Text Available The Alto Douro Wine Region, located in the northeast of Portugal, a UNESCO World Heritage Site, presents a relevant tabique building stock, a traditional vernacular building technology. A technology based on a timber framed structure filled with a composite earth-based material. Meanwhile, previous research works have revealed that, principally in rural areas, this Portuguese heritage is highly deteriorated and damaged because of the rareness of conservation and strengthening works, which is partly related to the non-engineered character of this technology and to the growing phenomenon of rural to urban migration. Those aspects associated with the lack of scientific studies related to this technology motivated the writing of this paper, whose main purpose is the physical and chemical characterization of the earth-based material applied in the tabique buildings of that region. Consequently, an experimental work was conducted and the results obtained allowed, among others, the proposal of a particle size distribution envelope in respect to this material. This information will provide the means to assess the suitability of a given earth-based material in regard to this technology. The knowledge from this study could be very useful for the development of future normative documents and as a reference for architects and engineers that work with earth to guide and regulate future conservation, rehabilitation or construction processes helping to preserve this fabulous legacy.

  10. Earth-based construction material field tests characterization in the Alto Douro Wine Region

    Directory of Open Access Journals (Sweden)

    Cardoso Rui

    2017-12-01

    Full Text Available The Alto Douro Wine Region, located in the northeast of Portugal, a UNESCO World Heritage Site, presents an abundant vernacular building heritage. This building technology is based on a timber framed structure filled with a composite earth-based material. A lack of scientific studies related to this technology is evident, furthermore, principally in rural areas, this traditional building stock is highly deteriorated and damaged because of the rareness of conservation and strengthening works, which is partly related to the non-engineered character of this technology and to the knowledge loosed on that technique. Those aspects motivated the writing of this paper, whose main purpose is the physical and chemical characterization of the earth-based material applied in the tabique buildings of that region through field tests. Consequently, experimental work was conducted and the results obtained allowed, among others, the proposal of a series of adequate field tests. At our knowledge, this is the first time field tests are undertaken for tabique technology. This information will provide the means to assess the suitability of a given earth-based material with regards to this technology. The knowledge from this study could also be very useful for the development of future normative documents and as a reference for architects and engineers that work with this technology to guide and regulate future conservation, rehabilitation or construction processes helping to preserve this important legacy.

  11. Trends in linguistic, scholastic and educational policies in trentino and Alto Adige (1919-1939

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    Elisa Gori

    2016-01-01

    Full Text Available The text proposes the examination of school and educational policy choices made in the territories of Trentino and Alto Adige, for German and Ladin speaking minorities in the time period between the end of the first major world conflict and the beginning of the second. During the historical period under consideration, the territories of the new provinces were headquarters and object of multiple political, economic and cultural operations, marked by different and opposite strategies: referrals of implicit nationalist trend which attributed extensive legislative powers to central authorities, were replaced by more democratic guidelines, that embraced local autonomies and recognized the rights of the minorities. Search for a political balance between the two instances, which was initially pursued, left the field with the arrival of the first fascist government to a new scenario with the aim of Italianize, even with the use of violence, the kind and organization of the new provinces. The same contradictory scenario will mark the evolution of educational policies in the new territories; the attempt to extend the Italian scholastic regulations to new provinces, first gradually and respectfully on the linguistic minorities, their schools and traditions, with the fascist government will suffer a significant change in behavior and reasoning. The theme of this research, which is little studied and analyzed in detail, assumes its relevance, whether in terms of historical and educational research linked to particular historic moment and geographical context, whether in terms of the consequences that it had in the construction of the Italian Republic.

  12. ALGUNAS HERRAMIENTAS PARA LA TOMA DE DECISIONES DE INVERSIÓN EN PROYECTOS DE ALTO RIESGO

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    Julio Villarreal

    2007-01-01

    Full Text Available En este trabajo se presenta un posible aplicación metodológica para la toma de decisiones de inversión en proyectos de alto riesgo como las que típicamente son apoyados por los llamados fondos de capital de riesgo. El objetivo final es mostrar como es posible a través de esta metodología, reducir las asimetrías de información típicas en la relación entre inversionistas de riesgo (accionistas de capital y gestores de proyectos (accionistas industriales. La metodología propuesta se aplica a un plan de negocios real, pero de igual manera se puede aplicar a otros proyectos riesgosos, y muestra cómo una adecuada estructuración de un proceso de decisión, usando los modelos y herramientas adecuadas puede ser muy útil tanto en decisiones de fondos de inversión como en la estructuración de procesos de evaluación de alternativas de decisión estratégicas en las que el riesgo hace inapropiado el tradicional análisis determinístico.

  13. Las galerías filtrantes del Alto Lerma: usos y manejos sociales

    Directory of Open Access Journals (Sweden)

    Roberto Montes-Hernández

    2011-01-01

    Full Text Available La ubicación y estudio del manejo social del agua de las galerías filtrantes en el Estado de México no se ha realizado porque se ignora la existencia de este sistema hidráulico. En el presente artículo se informa por primera vez la georreferenciación y descripción del uso y manejo social del agua de las galerías filtrantes del Alto Lerma. Con base en trabajo de campo, revisión de archivos y etnografía, se verifica y describe la existencia de dicho sistema en esta región. El desarrollo de este trabajo es parte de una investigación más amplia, denominada "Caracterización del uso y manejo social del agua de las galerías filtrantes en el Estado de México", bajo la supervisión de Tonatiuh Romero.

  14. El poblamiento humano antiguo en el valle alto del Lozoya (Madrid

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    Belén Márquez

    2008-01-01

    Full Text Available La localización en superficie en el término municipal de Lozoya (Madrid de un conjunto de piezas de industria lítica achelense permite retrotraer el primer poblamiento de esta zona al Pleistoceno medio, cuando hasta la fecha las evidencias más antiguas en el valle alto del río Lozoya se remontaban a inicios del Pleistoceno superior. El nuevo hallazgo sitúa al río Lozoya en relación cultural con el poblamiento humano antiguo de los ríos Jarama y Manzanares.The discovery of a surface sample of Acheulean lithic industry at the Lozoya district (Madrid takes back to the Middle Pleistocene the first human peopling of this area. Until now themost ancient evidences at the Upper Lozoya Valley went back to the initial Upper Pleistocene. The new findings place the Lozoya River in cultural relation with the ancient human population of Jarama and Manzanares Rivers.

  15. COMPREENSÃO DA PAISAGEM DO ALTO CAMAQUÃ: debate ambiental sobre o Bioma Pampa

    Directory of Open Access Journals (Sweden)

    Adriano Severo Figueiró

    2011-01-01

    Full Text Available El presente articulo trata de la confi guración del paisaje de la subcuenca del Alto Camaquã/RS, bien como la evolución de determinados elementos naturales y la historia de las culturas que tornaran esta una de las más bellas e intrigantes paisajes que componen el territorio gaucho y el denominado Bioma Pampa. Este recorte de estudio fue determinado en función de su importancia para la conservación y protección de este bioma brasilero amenazado por la introducción de formas de "desarrollo exógeno" actualmente aprobadasy que no están de acuerdo con las particularidades socioeconómicas, culturales y ambientales de la región.En este sentido, el documento analiza las particularidades existentes y condicionamiento que los elementos naturales de este paisaje representan para el proceso de propiedad y planifi cación territorial del Pampa.

  16. Hyphessobrycon ocasoensis sp. n. (Teleostei, Characidae una nueva especie para el Alto Cauca, Colombia

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    García-Alzate, C. A.

    2008-12-01

    Full Text Available Hyphessobrycon ocasoensis n. sp. (Teleostei, Characidae a new species from the Alto Cauca, Colombia Hyphessobrycon ocasoensis n. sp. (Characiformes, Characidae from heterorhabdus group (Gery, 1977 is described from the upper Cauca River in Colombia. The new species is distinguished from all other known species by the following combination of characters: three unbranched and eight branched fins in the dorsal fin; short maxillary bone with one or no teeth; four small foramens in the maxillary bone, and five in the premaxillary; 5-17 scales with pores in the lateral line, six between the lateral line and anal-fin origin, six between the lateral line and pelvic-fin origin, and nine predorsals; depth of the caudal peduncle has a mean of 16.7% in standard length; interorbital width 50.6% in head; a dark spot on caudal peduncle and a dark lateral band that extends vertically from the dorsal–fin origin to the tips of the middle caudal fin rays. Physical and chemical data of their habitat are included.

  17. The staging and performativity of ethnic tourism in Los Altos de Chiapas

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    Eugenia Bayona Escat

    2018-05-01

    Full Text Available This paper reflects on the ethnic tourism and the selective and particular visions that tourists have about the indigenous population, described as different and exotic. The constructive look of the tourist is combined with the need to experiment with the otherness to authenticate the travel. This implies deepening the processes that make up the ethnic imaginary within the global leisure market, but also in analyzing the role that performance activities acquire as a tourist attraction. The work wants to explore the exhibition of the indigenous body in the tourist market from two visions: on the one hand, the interest of the body as cultural heritage; on the other, the moving body on the tourist stage. For the analysis I will use the ethnographic data of the region Altos Tzotzil Tzeltal of Chiapas (Mexico with great influx of ethnic tourists. The purpose is to observe how in these tourist spaces, built as exotic and outside the world economic and cultural system, they become precisely transnational places of exchange of glances, and in places where it is exhibited, observes and commodified a body qualified as ethnic.

  18. Multidrug-resistant pulmonary tuberculosis in Los Altos, Selva and Norte regions, Chiapas, Mexico.

    Science.gov (United States)

    Sánchez-Pérez, H J; Díaz-Vázquez, A; Nájera-Ortiz, J C; Balandrano, S; Martín-Mateo, M

    2010-01-01

    To analyse the proportion of multidrug-resistant tuberculosis (MDR-TB) in cultures performed during the period 2000-2002 in Los Altos, Selva and Norte regions, Chiapas, Mexico, and to analyse MDR-TB in terms of clinical and sociodemographic indicators. Cross-sectional study of patients with pulmonary tuberculosis (PTB) from the above regions. Drug susceptibility testing results from two research projects were analysed, as were those of routine sputum samples sent in by health personnel for processing (n = 114). MDR-TB was analysed in terms of the various variables of interest using bivariate tests of association and logistic regression. The proportion of primary MDR-TB was 4.6% (2 of 43), that of secondary MDR-TB was 29.2% (7/24), while among those whose history of treatment was unknown the proportion was 14.3% (3/21). According to the logistic regression model, the variables most highly associated with MDR-TB were as follows: having received anti-tuberculosis treatment previously, cough of >3 years' duration and not being indigenous. The high proportion of MDR cases found in the regions studied shows that it is necessary to significantly improve the control and surveillance of PTB.

  19. Reporte de cuatro casos clínicos de filariasis en Alto Nanay, Loreto

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    Javier Vargas-Herrera

    Full Text Available El presente estudio describe los hallazgos clínicos, parasitológicos y de laboratorio de cuatro pacientes residentes en el distrito de Alto Nanay, Maynas, Loreto, Perú; infectados con microfilarias de Mansonella ozzardi. La evaluación clínica incluyó las especialidades de oftalmología, cardiología y nefrología. En el caso 1, destaca la presencia de dos tumoraciones subcutáneas, una a nivel dorsal y la otra en el tercio inferior de la pierna izquierda; en el caso 2, la sensación de “hormigueo o frío en las piernas”; en el caso 3 se encontró asociada una infección crónica por hepatitis B y en el caso 4 una tumoración de gran tamaño en región lumbar izquierda. En los cuatro pacientes se encontró Mansonella ozzardi y eosinofilia, tres presentaron valores mayores a 20%. La tumoración en el caso 4 correspondió a una hernia de contenido intestinal. Es necesario ejecutar más estudios clínicos y evaluar su verdadero efecto patógeno, es también pertinente estudiar la diversidad genética de filarias de la Amazonia peruana.

  20. Farmers typology and crops sustainability in Alto Urubamba, La Convencion – Cusco

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    Isaías Merma

    2012-06-01

    Full Text Available The research was conducted in the geographical region of Alto Urubamba, province of La Convencion, Cusco - Peru. The objective was to identify types of farmers and evaluate crops sustainability on farms of high forest. Surveys were applied to a sample of 106 farmers in both biophysical and socio-economic terms in order to identify typology; this information was analyzed through descriptive statistics. Multivariate analysis using preselected variables was performed to identify types of farmers. In addition, sustainability of eight tropical crops was evaluated; for this purpose, three farms for each crop were selected from 24 evaluated farms. Practical indicators of soil quality and crop health with a valuation from 0 to 10 were used; farmers participated during this evaluation. The results show that there are three types of farmers according to their efficiency in resources management and their economic logic. The crops of tea (6.65 and mango (6.50 obtained the highest values of sustainability, followed by coffee (6.25, cocoa (6.25, citrus (5.50, banana (5.45 and coca (5.10. Papaya (4.60 shows a value less than five; therefore, is considered as unsustainable according to local conditions.

  1. HTLV-I en población de alto riesgo sexual de Pisco, Ica, Perú.

    Directory of Open Access Journals (Sweden)

    Patricia GARRIDO

    1997-07-01

    Full Text Available Objetivo: Se estudiaron 141 personas con alto riesgo sexual en la ciudad de Pisco para detectar infección por HTLV-I. Material y Métodos: Se encuestaron y se tomaron muestras de sangre a 141 personas que involucró a trabajadoras sexuales (32, varones homosexuales (54, y varones bisexuales(55. Resultados: Tres de treintidós (10.4% trabajadoras sexuales fueron positivas; uno de cincuenticuatro (1.9% de varones homosexuales y ninguno de 55 bisexuales. Hubo una elevada frecuencia de parejas, así como el antecedente de enfermedades de transmisión sexual (ETS en estos grupos con comportamiento de riesgo. Conclusiones: El HTLV-I es una infección frecuente en grupos de alto riesgo sexual de Pisco-Perú. (Rev Med Hered 1997; 8:104-107.

  2. Sobre la determinación de la calidad de las escorias de horno alto y de las puzolanas

    Directory of Open Access Journals (Sweden)

    Wittekindt, W.

    1964-06-01

    Full Text Available Not availableEn la molienda de clínker portland con escoria de horno alto para obtener cemento portland de hierro y cemento de horno alto, uno está más seguro de la calidad del clínker que de la escoria. El análisis del clínker y el cálculo de los minerales de clínker, facilitado por este análisis, nos dice ya, en gran parte, si se puede fabricar con este clínker un cemento portland de mayor o menor resistencia, si pueden esperarse buenas resistencias iniciales o si hay que contar más bien con mayores resistencias finales, cual es la resistencia del cemento a los sulfatos, etc.

  3. Relación entre el estilo de vida de una joven deportista de alto rendimiento y los patrones funcionales de salud de Marjory Gordon

    OpenAIRE

    Fabra Heredia, Juan Manuel; Casadó Marín, Lina

    2014-01-01

    Estudio de caso que busca conocer y comprender la relación que hay entre el estilo de vida de una joven deportista de alto rendimiento y los patrones funcionales de salud, a través de la valoración realizada a una joven deportista de alto rendimiento, desde una perspectiva holística, para adentrarse en las peculiaridades propias de este estilo de vida y crear un punto de partida para los cuidados de enfermería dirigidos a deportistas de alto rendimiento. En este caso, se observaron factores p...

  4. Evaluation of some energy options for the replacement of wood in cooking food in the Region Alto Patia

    International Nuclear Information System (INIS)

    Santacruz, Carlos A; Macia, Andres F

    2006-01-01

    In the present article an environmental evaluation appears financier and social of the different power solutions for the substitution from the wood in the food baking. First begins to describe the region of the Alto Patia, soon the objective population defines, this is village the San Juanito, in addition and they define the evaluation criteria the propose technologies that are: Solar, Electric, coal, gas and finally it is selected most suitable for this region.

  5. Lípidos séricos en escolares y adolescentes sanos chilenos de estrato socioeconómico alto

    Directory of Open Access Journals (Sweden)

    Zacarías S. José, Dr.

    2012-11-01

    Conclusiones: En niños y adolescentes chilenos sanos de estratos socioeconómicos altos, hay una alta proporción con colesterol total y colesterol LDL en zonas de riesgo o aumentadas. Las concentraciones de colesterol de adolescentes mujeres son significativamente mayores que las de varones. No se observó una asociación de lípidos séricos con perímetro abdominal o con IMC.

  6. Sedimentation survey of Lago Loíza, Trujillo Alto, Puerto Rico, July 2009

    Science.gov (United States)

    Soler-López, Luis R.; Licha-Soler, N.A.

    2014-01-01

    Lago Loíza is a reservoir formed at the confluence of Río Gurabo and Río Grande de Loíza in the municipality of Trujillo Alto in central Puerto Rico, about 10 kilometers (km) north of the town of Caguas, about 9 km northwest of Gurabo, and about 3 km south of Trujillo Alto (fig. 1). The Carraizo Dam is owned and operated by the Puerto Rico Aqueduct and Sewer Authority (PRASA), and was constructed in 1953 as a water-supply reservoir for the San Juan Metropolitan area. The dam is a concrete gravity structure that is located in a shallow valley and has a gently sloping left abutment and steep right abutment. Non-overflow sections flank the spillway section. Waterways include an intake structure for the pumping station and power plant, sluiceways, a trash sluice, and a spillway. The reservoir was built to provide a storage capacity of 26.8 million cubic meters (Mm3) of water at the maximum pool elevation of 41.14 meters (m) above mean sea level (msl) for the Sergio Cuevas Filtration Plant that serves the San Juan metropolitan area. The reservoir has a drainage area of 538 square kilometers (km2) and receives an annual mean rainfall that ranges from 1,600 to 5,000 millimeters per year (mm/yr). The principal streams that drain into Lago Loíza are the Río Grande de Loíza, Río Gurabo, and Río Cañas. Two other rivers, the Río Bairoa and Río Cagüitas, discharge into the Río Grande de Loíza just before it enters the reservoir. The combined mean annual runoff of the Río Grande de Loíza and the Río Gurabo for the 1960–2009 period of record is 323 Mm3. Flow from these streams constitutes about 89 percent of the total mean annual inflow of 364 Mm3 to the reservoir (U.S. Geological Survey, 2009). Detailed information about Lago Loíza reservoir structures, historical sediment accumulation, and a dredge conducted in 1999 are available in Soler-López and Gómez-Gómez (2005). During July 8–15, 2009, the U.S. Geological Survey (USGS) Caribbean Water Science

  7. Fish mercury concentration in the Alto Pantanal, Brazil: influence of season and water parameters.

    Science.gov (United States)

    Hylander, L D; Pinto, F N; Guimarães, J R; Meili, M; Oliveira, L J; de Castro e Silva, E

    2000-10-16

    The tropical flood plain Pantanal is one of the world's largest wetlands and a wildlife sanctuary. Mercury (Hg) emissions from some upstream gold mining areas and recent findings of high natural Hg levels in tropical oxisols motivated studies on the Hg cycle in the Pantanal. A survey was made on total Hg in the most consumed piscivorous fish species from rivers and floodplain lakes in the north (Cáceres and Barão de Melgaço) and in the south part of Alto Pantanal (around the confluence of the Cuiabá and Paraguai rivers). Samples were collected in both the rainy and dry seasons (March and August 1998) and included piranha (Serrasalmus spp.), and catfish (Pseudoplatystoma coruscans, pintado, and Pseudoplatystoma fasciatum, cachara or surubim). There was only a small spatial variation in Hg concentration of the 185 analyzed fish samples from the 200 x 200 km large investigation area, and 90% contained total Hg concentration below the safety limit for regular fish consumption (500 ng g(-1)). Concentration above this limit was found in both Pseudoplatystoma and Serrasalmus samples from the Baia Siá Mariana, the only acid soft-water lake included in this study, during both the rainy and dry seasons. Concentration above this limit was also found in fish outside Baia Siá Mariana during the dry season, especially in Rio Cuiabá in the region of Barão de Melgaço. The seasonal effect may be connected with decreasing water volumes and changing habitat during the dry season. The results indicate that fertile women should restrict their consumption of piscivorous fishes from the Rio Cuiabá basin during the dry season. Measures should be implanted to avoid a further deterioration of fish Hg levels.

  8. NUEVAS TERAPIAS EN EL MANEJO DE LOS GLIOMAS DE ALTO GRADO

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    Dr. Raúl Valenzuela

    2017-05-01

    Full Text Available El reto de mejorar el tratamiento actual de los gliomas de alto grado ha sido abordado con inmensa creatividad, desarrollándose una gran variedad de estrategias para este fin. El análisis interino de un estudio fase III mostró que el beneficio de la terapia standard mejora al complementarla con terapia de campos eléctricos alternantes (Novo TTF-100 A; dadas las limitaciones de un análisis interino, queda por establecer la real magnitud y relevancia clínica de esta mejoría. El presunto beneficio de usar tratamiento antiviral contra citomegalovirus es muy controvertido y su utilidad no se ha demostrado en forma fehaciente. Las terapias antiangiogénicas han mostrado ser útiles para el manejo de las recurrencias, al menos como tratamiento sintomático, pero no han demostrado mejorar la sobrevida en pacientes de novo. La terapia dirigida contra señales intracelulares de crecimiento, conceptualmente muy atractiva, todavía no ha logrado resultados clínicos exitosos. Hay datos preliminares promisorios respecto al uso clínico de vacunas antitumorales y de inmunomodulación con inhibidores de “checkpoints”; también hay algunos datos preliminares a favor del uso de virus oncolíticos. La terapia genética parece estar en etapas aún muy tempranas de su desarrollo y probablemente demore más tiempo en llegar a demostrar utilidad clínica.

  9. Diversidad de peces en la cuenca del Alto Yuruá (Ucayali, Perú

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    Blanca Rengifo

    2013-05-01

    Full Text Available El presente estudio compara los patrones de diversidad de peces en la Cuenca del Alto Yurúa. El área de estudio comprendió tres sub cuencas: Beu, Breu y Yurúa, todas sin impacto antropogénico. Mediante pesca con redes de arrastre a orilla, se colectaron 10564 individuos y se identificaron 185 especies de peces. En escala regional, el promedio del índice de diversidad Shannon (H’ para Beu fue de 2,02; para Breu 1,84 y para Yuruá 1,75. Según el análisis de rarefacción, Yurúa tuvo la riqueza de especies esperada más alta (91 spp. en comparación con Beu (87 y Breu (68. En la escala local, los ambientes lóticos presentaron mayor riqueza y diversidad que los lénticos. La diversidad promedio (H’ fue mayor en lóticos (Beu 2,04; Breu 1,90; y Yurúa 1,86, comparados con lénticos de los mismos (Beu 1,66; Breu 1,86; y Yurúa 1,82. La mayor diversidad de peces observada en ambiente lóticos podría explicarse por que la mayoría de peces amazónicos tienen el comportamiento de desplazarse por los canales principales de los ríos, mientras que los lagos pueden presentar condiciones de estrés estacional (alta presión de depredación y bajas concentraciones de oxígeno disuelto.

  10. Tratamento do paciente com mielodisplasia de alto risco Treatment of myelodysplastic syndrome in high risk patients

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    Evandro M. Fagundes

    2006-09-01

    Full Text Available O tratamento do paciente com mielodisplasia deve ser feito considerando o risco biológico da doença, a idade e as condições clínicas do paciente. De um modo geral, uma doença de alto risco necessitaria de um tratamento mais agressivo. Porém, devido à elevada idade mediana no diagnóstico, a maioria dos pacientes não tolera tratamentos intensivos. O transplante de células-tronco hematopoiéticas é a única opção para aqueles que objetivam a cura da doença. Para aqueles que não podem se submeter a um transplante, as opções incluem o uso de quimioterapia intensiva, agentes hipometilantes, tratamento suportivo e/ou inclusão em estudos clínicos. A quimioterapia intensiva semelhante à utilizada para leucemia mielóide aguda é uma boa opção para pacientes em boas condições clínicas e com menos de 65 anos de idade.To initiate a treatment for myelodysplastic syndrome, the physician should consider the patient's age, status performance and the risk of transformation to acute myeloid leukemia (AML and death. In theory, a high risk disease should be approached with intense treatment however most patients are not healthy enough to receive aggressive treatment with chemotherapy or stem cell transplantation. For those who are not able to receive a transplantation, the treatment options include AML-like chemotherapy, hypomethylating agents, supportive care alone or participation in a clinical trial. AML-like chemotherapy is still a reasonable choice for those patients who are in good clinical conditions and are younger than 65 years of age.

  11. Occupational safety and health practices among flower greenhouses workers from Alto Tietê region (Brazil)

    International Nuclear Information System (INIS)

    Ribeiro, Marcela G.; Colasso, Camilla G.; Monteiro, Paula P.; Filho, Walter R. Pedreira; Yonamine, Maurício

    2012-01-01

    In this preliminary study the occupational safety and health practices among flower greenhouses workers were evaluated. The study was carried out in the alto Tietê region, located at the Sao Paulo State, Brazil. Inadequate welfare facilities; poor pesticide storage, use and disposal conditions; use of highly toxic pesticides; lack of adequate data regarding pesticide use; and incorrect use and maintenance of PPE were observed in most of the visited greenhouses. These results suggest that, in greenhouses, workers may be at higher risk of pesticide exposure, due to many factors that can intensify the exposure such as the lack of control on reentry intervals after pesticide application. Specific regulations are needed to ensure better OSH practices on pesticide use and to improve working conditions in greenhouses, in order to deal with the peculiarities of greenhouse working environment. Some of the special requirements for greenhouses workers' protection are the establishment of ventilation criteria for restricted entry interval; clear reentry restrictions; and EPI for workers other than applicators that need to enter the greenhouse before expiring REI interval. Another important way to improve OSH practices among workers includes the distribution of simple guidelines on the dos and don'ts regarding OSH practices in greenhouses and extensively training interventions to change the perception of hazards and the behavior towards risk. - Highlights: ► Occupational safety and health practices among flower greenhouses workers were evaluated. ► Lack of clear reentry restrictions can intensify the exposure in greenhouses. ► Specific regulations dealing with the peculiarities of greenhouse working environment are needed. ► Distribution of simple guidelines relying on greenhouse working can improve OSH practices. ► Training interventions are important to change the workers' perception of hazards and behavior towards risk.

  12. Ethnobotanical notes about some uses of medicinal plants in Alto Tirreno Cosentino area (Calabria, Southern Italy

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    Impieri Massimo

    2007-11-01

    Full Text Available Abstract Background The present paper contributes to enrich the ethnobotanical knowledge of Calabria region (Southern Italy. Research was carried out in Alto Tirreno Cosentino, a small area lying between the Tyrrhenian coast and the Pollino National Park. In the area studied medicinal plants still play a small role among farmers, shepherds and other people who live far from villages and built-up areas. Methods Information was collected by interviewing native people, mainly elderly – engaged in farming and stock-raising activities – and housewives. The plants collected, indicated by the locals, have been identified according to "Flora d'Italia". The exsiccata vouchers are preserved in the authors' own herbaria. Results 52 medicinal species belonging to 35 families are listed in this article. The family, botanical and vernacular name, part of the plant used and respective manipulation are reported there and, when present, similar or identical uses in different parts of Calabria or other Italian regions are also indicated. Conclusion Labiatae, Rosaceae and Leguminosae are the families most frequently present, whilst Compositae and Brassicaceae are almost absent. The uses of the recorded species relate to minor ailments, mainly those of the skin (15 species, respiratory apparatus diseases (11, toothache, decay etc. (10 and rheumatic pains (8. The easy availability of these remedies provides a quick way of curing various minor complaints such as tooth-ache, belly and rheumatic pain and headaches and can also serve as first aid as cicatrizing, lenitive, haemostatic agents etc. The role in veterinary medicine is, on the contrary, more important: sores, ulcers, tinea, dermatitis, gangrenous wounds of cattle, and even respiratory ailments are usually cured by resort to plants.

  13. CONSIDERATIONS FOR THE ADJUSTMENT OF SWINE PRODUCTION CONDUCT IN THE ALTO URUGUAI CATARINENSE

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    Cláudio Rocha de Miranda

    2011-07-01

    Full Text Available This paper presents a partial survey of the SPC evaluation, conducted in 2010, with swine signatory to the properties of the SPC in the microregion of Alto Uruguai Catarinense, in order to evaluate the effective implementation of corrective measures established in the Term. The survey was conducted through visits in September 2010 in 58 farmers, selected from representative sampling. For the sampling plan two basic conditions should be followed: 1 in all municipalities nineteen producers should be visited, 2 the type of contractual relationship of the pig farmers should be considered. For the average pig farmer environmental adaptations such expenses are considered significant, given remuneration of the activity is considered small. The SPC was considered of great importance for about 70% of respondents. For some pig farmers, the SPC is serving as a sort of extension of time in which the pig farmers are taking advantage to make the maximum depreciation of facilities. In the farms visited, there was being done isolation of the areas of riparian and annotation of the legal reserve, but it appears that such practice is being conducted in a bureaucratic way. The aging of pig farmers is an indisputable fact, perceiving few properties where there are possible successors. Considering the actions that are being implemented, it appears that term led to the development of numerous environmental improvements on farms. Furthermore, provided the necessary security for the pig farmers continue producing. However, it can be perceived the need for the measures envisaged are associated with effective monitoring and technical education, since some measures are being met, as merely bureaucratic, given that many producers do not understand the environmental importance of compliance with these legal requirements.

  14. O turismo cultural e o projeto Rehabitar no bairro da Ribeira: a conservação do patrimônio histórico de Natal-RN através da habitação social e da atividade turística

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    Sylvana K. Marques

    2015-12-01

    Full Text Available A degradação dos centros urbanos e os processos de requalificação têm sido alvo de diversas políticas públicas associadas ao fomento da atividade turística. Projetos que visam o uso habitacional, majoritariamente, se relacionam com esse tipo de política, uma vez que buscam valorizar o solo urbano a partir das práticas sociais e da conservação do patrimônio edificado. Diferentes segmentos sociais afirmam que a habitação do solo a partir das premissas do Projeto ReHabitar ultrapassam as perspectivas economicistas e unem-se a agenda do turismo cultural por meio de um planejamento participativo. Nessa perspectiva, será feita a análise do Projeto ReHabitar, que propõe a requalificação dos edifícios históricos para a habitação social no bairro da Ribeira em Natal-RN. Discutir-se-á o uso do solo para habitação concatenado a emergência, a decadência e a revitalização do bairro. E, a classificação em caráter prioritário dos edifícios para a requalificação, que consequentemente estimulariam o turismo. Visto que, desses edifícios, apenas o Edifício Bila foi reformado, organizou-se a coleta de depoimentos com os seus moradores, objetivando captar as representações dos indivíduos que estão repovoando o bairro da Ribeira, a fim de se entender as fragilidades, as conquistas e as mediações do Projeto ReHabitar em suas conexões com as políticas voltadas para a atividade turística na capital potiguar, que na atualidade, visam a mediação com os diferentes indivíduos envolvidos no processo.

  15. Pimelodus paranaensis, sp. n., um novo Pimelodidae (Pisces, Siluriformes do Alto Paraná, Brasil

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    Heraldo A. Britski

    1988-01-01

    Full Text Available Descreve-se Pimelodus paranaensis, sp. n., da bacia do Alto Paraná, Brasil, com base em 20 exemplares. A nova espécie pode ser assim diagnosticada: (i dentes presentes e formando duas áreas isoladas no vômer; (ii faixa pré-maxilar de dentes com um ângulo projetado para trás; (iii teto do crânio coberto por pele fina; (iv comprimento da nadadeira adiposa 3,9 a 4,3 vezes no comprimento padrão; (v a maior altura da nadadeira adiposa 3,1 a 4.3 vezes no seu comprimento; (vi região dorsal do corpo de cor castanha com pequenas manchas arredondadas, castanho-escuras. Apesar de possuir dentes vomerianos como em Pimelodus albicans, e como em certos exemplares de P. clarias (sensu Eigenmann & Eigenmann, 1890, achamos que as verdadeiras relações desta nova espécie e sua situação genérica só poderão ser estabelecidas após uma nova boa revisão do grupo.Pimelodus paranaensis, n. sp., from the Upper Paraná basin, is described on the basis of 20 specimens. The new species can be diagnosed as follows: (1 teeth present and forming two isolated on the vomer; (2 premaxillary band of teeth with a backward projecting angle; (3 top of head covered with thin layer of skin; (4 adipose fin basis 3,9 to 4.6 in standard length; (5 greatest depth of adipose fin 3.1 to 4.3 in its length, (6 dark spots along the dorsum. In spite of having teeth on the vomer as Pimelodus albicans, and as some specimens of P. clarias (sensu Eigenmann & Eigenmann, 1890 and in being similar to Bagropsis reinhardti in many respects, we feel that the true relationships and the generic status of the new species can be established only after a thorough revision of the group.

  16. Social perception of the forest landscape in Trentino-Alto Adige (Italy: comparison of case studies

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    Pastorella F

    2016-12-01

    Full Text Available The landscape is the product of human activities and nature as developed during the centuries. However, the landscape has a symbolic value because it can be considered the identity and culture of a territory that includes the values and beliefs of local population. The Alpine landscape is a unicum in the world due to its geomorphologic, climatic and vegetation characteristics and socio-economic conditions of local population. Over the centuries the social perception of Alps has changed: in a first phase the Alps were considered “horrible and scary mountains”, later Alps were perceived as “beautiful and fascinating places”, and currently the Alpine mountains are considered a place of relaxation and recreation. The analysis of landscape perception aimed to investigate the visitors’ opinions about landscape is an important instrument to support the decision concerning the land planning and management. This study focuses on the analysis of the aesthetic perception of visitors on Alpine landscapes following two perspectives: a first overall perspective considering the landscape as a mosaic of different land uses and a second perspective of detail observing the individual components that characterize the forest landscape. The aim of the study is to identify the most appreciated elements of landscape from the aesthetic point of view and the influence of socio-demographic characteristics of respondents on individual perception. In order to investigate the perception about the Alpine landscapes 358 visitors of two sites of Trentino-Alto Adige (Val di Genova and Santa Maria lake were interviewed using a structured questionnaire. The results show that the most appreciated elements of the landscape by the visitors are water (lakes and rivers and forests. These preferences are also conditioned by the site where the interviews were made. In addition, the results show that for the respondents of this survey the forest with the highest attractiveness

  17. Conduta na lesão intraepitelial de alto grau em mulheres adultas

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    Pauliana Sousa Oliveira

    Full Text Available O câncer cervical é a segunda causa mais comum de câncer entre as mulheres no mundo, apesar de apresentar grande potencial de prevenção e cura quando diagnosticado e tratado precocemente, o que pode reduzir a taxa de mortalidade entre as acometidas. Como não há consenso entre as medidas terapêuticas nas lesões intraepiteliais escamosas cervicais de alto grau (HSIL, buscamos discutir a conduta frente às mulheres adultas que apresentam HSIL e o seguimento após o procedimento adotado. Foi realizada pesquisa eletrônica no Medline (através do PubMed, National Guidelines Clearinghouse, Google Acadêmico e Lilacs. Os consensos identificados foram avaliados segundo sua validade e recomendações. Em relação ao acompanhamento após o tratamento, o Europeu acompanha por citologia de 6/6 meses; o Australiano, citologia e colposcopia de 6/6 meses; o Americano preconiza a realização da captura híbrida em seis a 12 meses ou citologia em seis meses. Já o Projeto Diretrizes do Brasil recomenda que reavaliações clínicas e colpocitológicas devam ser realizadas a cada três ou quatro meses nos primeiros dois anos de seguimento. Estudos comparando o método "Ver e Tratar" com os três passos (histologia, colposcopia, biópsia concluíram que este último é indicado em mulheres LSIL/ASCUS antes de se submeterem à exérese da zona de transformação (EZT, enquanto que o "Ver e Tratar" é indicado em mulheres com HSIL comprovada na citologia e sugestiva na colposcopia, pois apresenta como vantagens, o baixo custo e a resolução imediata. Todos os consensos são unânimes ao afirmar que frente à HSIL comprovada, retira-se a lesão por meio de ablação ou conização ou EZT.

  18. Alto Patache fog oasis in the Atacama Desert: Geographical basis for a sustainable development program

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    Calderón, M.; Cereceda, P.; Larrain, H.; Osses, P.; Pérez, L.; Ibáñez, M.

    2010-07-01

    Alto Patache coastal fog oasis is a protected area located south of Iquique, Northern Chile, being presently in charge of the Atacama Desert Center (ADC) research group of the Pontificia Universidad Católica de Chile, since 1997. On 2007, the Chilean Government bestowed a piece of land stretch covering 1,114 hectares to ADC scientific group for scientific research, ecosystem protection and environmental education. This oasis has been recently studied from different points of view: climate, biogeography, fog collection, geomorphology, soil survey and land use planning, plant distribution, conservation and archaeology. During 2009, a study of the geographical basis to elaborate a general management plan was undertaken to collect information to fulfill our planned out objectives. Through this study, georreferenciated strategic information was compiled to evaluate future actions conducting to a sustainable development within the protected area. This information was translated into thematic maps showing the spatial distribution of variables like: climate, geology, geomorphology, soils, vegetation, fauna, archaeological sites and management zones. The methodology used is the analysis of satellite imagery, using GPS by creating a cartographic Data Base incorporated in GIS. Results show that the area starts at the littoral plain, ranging from 500 m to 2.000 m, being continued in parts by a piedmont intercepted by a very abrupt mega-cliff, or hectares of climbing sand dunes leading to a short high plateau limited by a soft hilly area to the East. Two soil types are characteristic: Entisols (Torriorthent) covering the coastal beach sediments, and Aridisols along the cliff and adjacent hills. Vegetation consists not only of a very rich lichen cover, but also of endangered vascular species associations constituting a very fragile sub-tropical coastal desert community, such as Eulychnia, Cumulopuntia, Eriosyce cacti, and Lycium - Nolana- Ephedra communities. Fog oasis

  19. Metal and trace element sediment assessment from Guarapiranga reservoir, Alto Tiete Basin, Sao Paulo, SP, Brazil

    International Nuclear Information System (INIS)

    Guimaraes, Guilherme Moura

    2011-01-01

    The Guarapiranga Reservoir, located in Sao Paulo metropolitan region, Brazil, is responsible for supplying about 20% of the entire population's water needs of this region or approximately 3.7 million people. However, this system has shown significant degradation in water quality, due to untreated domestic sewage and industrial effluents. In this study sediment samples were collected at five points along the reservoir and total concentration of some major (Fe, K and Na), trace (As, Ba, Br, Co, Cr, Cs, Hf, Hg, Rb, Sb, Sc, Ta, Tb, Th, U, V and Zn) and rare earth (Ce, Eu, La, Lu, Nd, Sm, Tb and Yb) elements were determined by instrumental neutron activation analysis (INAA). By inductively coupled plasma optical emission spectrometry (ICP OES) the concentrations of Al, Ba, Be, Ca, Co, Cr, Cu, Fe, K, Li, Mg, Mn, Na, Ni, Pb, Ti, V e Zn were determined after digestion procedure following US EPA 3051 methodology. The concentrations of metals Cd and Pb were determined by graphite furnace atomic absorption spectrometry (GFAAS) and total Hg by cold vapor atomic absorption spectrometry (CVAAS). Methodology validation according to precision and accuracy was performed by reference materials analyses for the three different analytical techniques used. Multielemental results obtained by INAA were compared to NASC (North American Shale Composite), Upper Continental Crust (UCC) and soil from Guarapiranga park values. The Enrichment Factor (EF) and Geo accumulation Index (Igeo) were also evaluated for these data. Metal concentration results by ICP OES and AAS in the samples were compared to the TEL and PEL oriented values established by the Canadian Council of Ministers of the Environment and also adopted by CETESB (Environmental Protection Agency of the Sao Paulo State). The results were also compared to regional reference values (VRR) of limnic sediments from the Alto Tiete Basin. From these data an assessment of metal and trace element accumulated in the sediments from the

  20. FORMAS DE LEITO E TRANSPORTE DE CARGA DE FUNDO DO ALTO RIO PARANÁ

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    Débora Pinto Martins

    2005-12-01

    Full Text Available O presente trabalho estima o transporte de carga de fundo no alto rio Paraná em Porto São José, PR (22º45’52”S e 53°10’34”W, num trecho de aproximadamente 2 km a jusante da Usina Hidrelétrica Engenheiro Sérgio Motta (Porto Primavera, onde o rio Paraná apresenta canal único com largura média de 1.200m e vazão média anual é de 8.912 m³/s. O cálculo da carga de fundo do canal foi baseado na determinação do tamanho das formas de leito e de sua velocidade de deslocamento linear, obtidos a partir de sucessivos levantamentos batimétricos. Foram realizadas três campanhas de levantamentos ecobatimétricos em diferentes momentos do ciclo hidrológico do rio, sendo cada campanha constituída por dois levantamentos separados em intervalos de 16 a 20 dias. O cálculo da carga de fundo baseou-se equação: Cf = (1-pH k Ud onde p é a porosidade (adimensional, H a altura média das formas de leito (m, k o coeficiente morfométrico das formas de leito (adimensional e Ud a velocidade de deslocamento das formas de leito (m/dia. As dunas são as formas de leito predominantes neste trecho do rio Paraná, com comprimento entre 50 e 100 m (média de 70,68 m e altura de 0,80 a 2,20 m (média de 1,30 m. A velocidade média de deslocamento linear das formas de fundo foi de 56,8 m/mês, para o período de maior vazão; e 45,0 m/mês para o período de menor vazão. O transporte médio de carga e fundo no rio Paraná foi estimado em 2.820,6 ton/dia, o que corresponde a 1.029.300 ton/ano. Comparando com dados anteriores, os autores sugerem que o transporte hidrossedimentar de fundo no trecho de canal estudado está sofrendo interferência da barragem de Porto Primavera.

  1. Guanaco traces and hunting strategies at Alto Patache North Chilean fog oasis

    Science.gov (United States)

    Larrain, H.; Cereceda, P.; Pérez, L.

    2010-07-01

    1. In foregoing Fog Conferences, some of us have made explicit the rich botanic and faunistic inventory to be found at this Chilean Fog site. This was specially apparent under strong ENSO conditions, as it happened in 1997/98 in the area. Among the mammal biggest species represented, the guanaco (Lama guanicoe Müller) merits special mention. Clear traces of their presence and eventual hunting and slaughtering by primitive populations have survived until present times. Among them, the myriads of guanaco trails still covering practically all the slopes along the foggy area, close to the sea, and their wollowing and defecating places are found. Also, although less studied, plant eating traces left behind by roaming camelids can be seen. 2. Guanaco hunting traces still visible at Alto Patache can be portrayed differently through : A) Analysis of lithic artifacts used as arms in hunting operations; B) Botanic response to animal attack; C) Examination of topographic traits used by primitive man in guanaco hunting strategies. A. Hundreds of lithic instruments made of stone, were abandoned by hunters in situ, some of them were intact, some fragmented, which would demonstrate a direct relationship with hunting and slaughtering, and also their elaboration in workshops at place. Lithic points, scrapers and knives were found at places specially apt for hunting or slaughtering activities. Total isolation of the mountain fog site previous to our arrival in 1996, favoured their conservation at place. B. Careful observation of some local plants showed clear traces of guanaco feeding habits. As a proof thereof, old cactus of the species Eulychnia iquiquensis show in their basal portions clear signals in the forms of scars, caused by the eating by guanacos. Guanaco faeces were found at the foot of Ephedra plants. Many dead Stipa ichu plants (Gramineae), in different areas of the oasis provide evidence of cutting close to their basis, caused by sharp guanaco tooth under severe food

  2. Arsenic in drinking water in the Los Altos de Jalisco region of Mexico.

    Science.gov (United States)

    Hurtado-Jiménez, Roberto; Gardea-Torresdey, Jorge L

    2006-10-01

    To establish the degree of contamination by arsenic in drinking water in the Los Altos de Jalisco (LAJ) region of west-central Mexico, and to estimate the levels of exposure that residents of the area face. Total arsenic concentration (the sum of all arsenic forms, organic and inorganic) was determined for 129 public water wells in 17 municipal capitals (cabeceras municipales) of the LAJ region, using inductively coupled plasma-optical emission spectroscopy. For most of the wells, water samples were taken in both November 2002 and October 2003. The levels of exposure to arsenic were estimated for babies (10 kg), children (20 kg), and adults (70 kg). Mean concentrations of arsenic higher than the Mexican national guideline value of 25 micro g/L were found in 44 (34%) of the 129 wells. The mean concentration of total arsenic for the 129 wells ranged from 14.7 micro g/L to 101.9 micro g/L. The highest concentrations were found in well water samples collected in the cities of Mexticacán (262.9 micro g/L), Teocaltiche (157.7 micro g/L), and San Juan de los Lagos (113.8 micro g/L). Considering the global mean concentration for all the wells in each of the 17 cities, the mean concentration of arsenic exceeded the Mexican guideline value in 7 of the cities. However, the global mean concentration in all 17 cities was higher than the World Health Organization guideline value of 10 micro g/L for arsenic. The range of the estimated exposure doses to arsenic in drinking water was 1.1-7.6 micro g/kg/d for babies, 0.7-5.1 micro g/kg/d for children, and 0.4-2.7 micro g/kg/d for adults. At the exposure doses estimated in the LAJ region, the potential health effects from chronic arsenic ingestion include skin diseases, gastrointestinal effects, neurological damage, cardiovascular problems, and hematological effects. While all the residents may not be affected, an important fraction of the total population of the LAJ region is under potential health risk due to the ingestion of high

  3. Fiscalidad tributaria y post-tributaria en el Alto Imperio Romano

    Directory of Open Access Journals (Sweden)

    José Carlos Jordán Reyes

    2010-01-01

    Full Text Available Con el tránsito de la República al Imperio, el sistema impositivo romano experimenta una profunda transformación. La fiscalidad cívica, regulada minuciosamente en el tributum, tiene su continuidad en las reformas fiscales emprendidas por Augusto, principalmente en el nuevo impuesto de sucesiones, la vicesima hereditatum y en la capitatio terrena. Se trata de un modelo tributario basado en la tradición republicana y con un fuerte sentido legal. A este modelo tributario se superpuso, como consecuencia de las necesidades de un Imperio en expansión, una fiscalidad ecléctica, con aportaciones de tributos de origen oriental, ajenas por completo al universo jurídico romano. Destinados en un principio a las provincias, fueron contaminando el sistema tributario romano en su conjunto. Estos tributos foráneos fueron a su vez contaminados por normas de Derecho romano, que les aportaron una naturaleza jurídica de la que solían carecer. En resumen, a lo largo del alto Imperio se va configurando un sistema tributario híbrido, complejo, de raíces romanas y orientales, con rasgos de fuerte juridicidad y al mismo tiempo con anomalías en su naturaleza jurídica y procedimental.The shift from the Roman Republic to the Roman Empire brought about a profound transformation of the Roman tax system. The tax reforms set forth by Augustus, most particularly, the new heritage tax, the vicesima hereditatum, and the capitatio terrena, did not mean a complete break from the civic fiscality which the tributum carefully regulated. Augustus’s system of taxation was based on the republican tradition and it had a strong sense of legality. Because of the needs of an expanding Empire, they added to this system of taxation an eclectic fiscality which included oriental taxes which had nothing to do with the Roman legal tradition. Originally designed for the provinces, these oriental taxes pervaded and corrupted the entire Roman system of taxation. In the same way, they

  4. Sustentabilidad: Liderar Organizaciones Migrantes en el Uruguay- Aspectos Asociados al Alto Desempeño Empresarial

    Directory of Open Access Journals (Sweden)

    Alberto González

    2016-04-01

    Full Text Available Las empresas son organizaciones cuya actividad principal son los negocios y se suele confundir ambos aspectos: el negocio y la organi-zación. La experiencia muestra que las empresas que permaecen en el tiempo se caracterizan por gestionar y evolucionar la relación organización-negocio en principalmente tres modalidades: mejorando su modelo de negocio, integrando nuevos negocios y migrando a otros negocios. Es cada vez más necesario para la supervivencia de una organización, el fortalecer dicha competencia específica de “migrar”: capacidad de desvin-cularse de un (modelo de negocio y asumir otro (modelo de negocio. Esta realidad impacta diferente a cada stakeholder. Los propietarios pueden migrar con mayor facilidad si deciden retirar su capital, vender el negocio, etc. El costo para los trabajadores es superior, afecta su fuente de trabajo y las condiciones de vida familiar, hasta su inclusión o exclusión social. Para la comunidad, la caída o reconversión de una organización puede implicar un costo colectivo enorme. El pensamiento económico y administrativo ha tendido a focalizar el problema en la sustentabilidad del negocio, pero desde la mirada ética y pasando por la Doctrina Social de la Iglesia, la sustentabilidad de la organización resulta más importante que la sustentabilidad del negocio. Se entrevistaron 55 empresas uruguayas que han perdurado más de 30 años, soportando radicales cambios del entorno, manteniendo posiciones de primera línea en sus áreas de acción. Un análisis cuantitativo de sus respuestas ilustra los factores de alto desempeño de su gestión, y un análisis cuali-tativo identifica características asociadas a su sustentabilidad organizacional, las cuales se presentan mediante el concepto de organizaciones migrantes. Los resultados muestran que además de las competencias de gestión, importan los valores y las actitudes de la dirección, confirmando la relevancia que tiene para las escuelas de

  5. Variación antropométrica y nutricional en Susques y Alto Comedero entre 2002-2007

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    Bejarano, Ignacio

    2007-01-01

    Full Text Available Las poblaciones humanas experimentan variaciones de los parámetros antropométricos como expresión de los cambios socioambientales. El objetivo de este trabajo fue analizar la variación temporal de talla, peso y estado nutricional en dos poblaciones jujeñas situadas a distintos niveles altitudinales. Los datos procedieron de mediciones realizadas en 2002 y 2007 en poblaciones de 6 a 17 años de Susques (3500 m y Alto Comedero (1200 m. Se calcularon las categorías nutricionales de Waterlow y las diferencias entre talla y peso y categorías nutricionales se establecieron con ANOVA y prueba de comparación de proporciones (χ2 respectivamente. Para ambas poblaciones se observaron diferencias interanuales estadísticamente significativas de los promedios de talla y peso, siendo menores en Susques en el 2007, lo contrario sucede en Alto Comedero. Las diferencias interanuales de la categorías nutricionales no fueron estadísticamente significativas en Alto Comedero, pero si en Susques para normonutridos y obesos que disminuyeron y aumentaron respectivamente entre 2002 y 2007. En el contexto de las modificaciones socioeconómicas experimentadas por la población susqueña en los últimos años, debido a su mayor conexión e integración con poblaciones vecinas por la apertura del Paso de Jama, los resultados indicarían un empeoramiento de las condiciones nutricionales de su población infanto juvenil.

  6. Estructura temporal, interacción táctica y eficacia en asaltos de esgrima de alto nivel

    OpenAIRE

    Tarragó Garcia, Rafael

    2017-01-01

    [spa] El objetivo general de esta tesis doctoral fue caracterizar las acciones técnico-tácticas en los asaltos de esgrima de competición de alto nivel en sus seis modalidades. Para ello se determinó la estructura temporal de los asaltos, analizando la eficacia de las acciones y la efectividad bilateral de las frases de armas en función del periodo del asalto, de la zona de la pista en que se realizaron y del tiempo que restaba de asalto, y efectuando un análisis del diálogo táctico. Se estru...

  7. HTLV-I en población de alto riesgo sexual de Pisco, Ica, Perú.

    OpenAIRE

    GARRIDO, Patricia; ANICAMA, Rolando; GOTUZZO, Eduardo; CHAUCA, Gloria; WATTS, Douglas

    2013-01-01

    Objetivo: Se estudiaron 141 personas con alto riesgo sexual en la ciudad de Pisco para detectar infección por HTLV-I. Material y Métodos: Se encuestaron y se tomaron muestras de sangre a 141 personas que involucró a trabajadoras sexuales (32), varones homosexuales (54), y varones bisexuales(55). Resultados: Tres de treintidós (10.4%) trabajadoras sexuales fueron positivas; uno de cincuenticuatro (1.9%) de varones homosexuales y ninguno de 55 bisexuales. Hubo una elevada frecuencia de parejas,...

  8. Operações motivadoras condicionadas transitivas em atletas de alto rendimento : da replicação ao conceito

    OpenAIRE

    Figueiredo, Luiz Eduardo de

    2013-01-01

    O presente estudo investigou o efeito das operações motivadoras condicionadas transitivas sobre a primeira resposta de uma cadeia comportamental de dois elos em uma tarefa de computador com participantes atletas de alto rendimento. Na cadeia comportamental, o comportamento de pressionar a tecla vermelha sob um esquema de razão variável 14, produzia a apresentação de 5 segundos do reforçador condicionado maçã, na presença do qual, pressionar a tecla azul resultava em 1 ponto verde trocável pel...

  9. Agroindustria y extractivismo en el Alto Cauca. Impactos sobre los sistemas de subsistencia Afrocampesinos y resistencias (1950-2011)

    OpenAIRE

    Irene Vélez Torres; Daniel Varela; Sandra Rátiva; Andrés Salcedo

    2013-01-01

    La agroindustria y el extractivismo han generado un profundo cambio en las prácticaseconómicas tradicionales del Alto Cauca en Colombia en detrimento de los sistemas socio-económicos de subsistencia de la población local Afro-campesina. El intenso conflictoarmado y la migración forzada han acompañado la instauración de estos modelos de acumulaciónpor despojo. Utilizando una metodología de investigación participativa, este artículoanaliza críticamente la disputa por el acceso y la propiedad so...

  10. Carga viral de seis tipos de Virus del Papiloma Humano de alto riesgo y su asociacion con lesiones cervicales

    OpenAIRE

    Del Río Ospina, Luisa Fernanda

    2015-01-01

    Introducción: La infección por un tipo de Virus del Papiloma Humano de alto riesgo (VPH-AR), es el factor principal en el desarrollo de Cáncer de Cérvix (CC). La carga viral puede modular esta asociación, por lo que resulta importante su cuantificación y el establecimiento de su relación con lesiones precursoras de CC. Metodología: 60 mujeres con lesiones escamosas intraepiteliales (LEI) y 120 mujeres sin LEI, confirmadas por colposcopia, fueron incluidas en el estudio. Se determinó la car...

  11. Análisis económico y ambiental de la agricultura alternativa. Caso: Alto Ricaurte - Boyacá

    OpenAIRE

    González A., Carolina; Gutiérrez B., Patricia

    1992-01-01

    El trabajo: Análisis económico y ambiental de la agricultura alternativa, caso: Alto Ricaurte Boyacá, aborda un tema de trascendencia como es la propuesta de un modelo de agricultura alternativa como base para un desarrollo sustentable, lo cual es, precisamente una de las principales preocupaciones de la comunidad internacional que motivó la convocatoria de la llamada Cumbre de la tierra que por estos días se reúne en Río de Janeiro.

  12. Inteligencia fluida y cristalizada en el autismo de alto funcionamiento y el síndrome de Asperger

    OpenAIRE

    Pérez, P.F.

    2016-01-01

    La inteligencia en los trastornos del espectro autista, especialmente en el autismo de alto funcionamiento y el síndrome de Asperger, ha sido tema de numerosas investigaciones que pretenden establecer la capacidad intelectual que se observa en estos sujetos. Algunos de los resultados más sobresalientes señalan que la inteligencia fluida es uno de los aspectos de desempeño superior en esta población, en comparación con el desempeño en las pruebas que miden inteligencia cristalizada como la esc...

  13. Prescrição de terapias baseadas em evidências para pacientes de alto risco cardiovascular: estudo REACT

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    Otávio Berwanger

    2013-03-01

    Full Text Available FUNDAMENTO: Dados de atendimento ambulatorial ao paciente de alto risco cardiovascular no Brasil são insuficientes. OBJETIVO: Descrever o perfil e documentar a prática clínica do atendimento ambulatorial de pacientes de alto risco cardiovascular no Brasil, no que diz respeito à prescrição de terapias baseadas em evidências. MÉTODOS: Registro prospectivo que documentou a prática clínica ambulatorial de indivíduos de alto risco cardiovascular, que foi definido como a presença de um dos seguintes fatores: doença arterial coronariana, cerebrovascular e vascular periférica; diabetes; ou aqueles com pelo menos três dos seguintes fatores: hipertensão arterial, tabagismo, dislipidemia, maiores 70 anos, histórico familiar de doença arterial coronariana, nefropatia crônica ou doença carotídea assintomática. Foram avaliadas características basais e a taxa de prescrição das intervenções medicamentosas e não medicamentosas. RESULTADOS: Foram incluídos 2.364 pacientes consecutivos, sendo 52,2% do gênero masculino, idade média de 66,0 anos (± 10,1. Dentre os pacientes incluídos, 78,3% utilizavam antiplaquetários, 77,0% estatinas e, dos pacientes com história de infarto do miocárdio, 58,0% receberam betabloqueadores. O uso concomitante destas três classes foi de 34%. Não atingiram as metas preconizadas pelas diretrizes 50,9% dos hipertensos, 67% dos diabéticos e 25,7% dos dislipidêmicos. Os principais preditores de prescrição de terapias com benefício comprovado foram centro com cardiologista e histórico de doença arterial coronariana. CONCLUSÃO: Este registro nacional e representativo identificou hiatos importantes na incorporação de terapias com benefício comprovado, oferecendo um panorama real dos pacientes de alto risco cardiovascular.

  14. Otium, materialidade e paisagem nas villae do Alto Alentejo português em época romana = Otium, Materiality and Landscape in the Roman Villae of Alto Alentejo (Portugal

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    André Carneiro

    2015-03-01

    Full Text Available A arquitectura das villae foi cuidadosamente pensada para permitir o máximo desfrute de uma vivência de gosto urbano e cosmopolita. A atenção dada à inserção da construção na paisagem, as soluções para harmonizar o espaço exterior criando atmosferas favoráveis, a contemplação para o exterior e a criação de espaços e ambientes construídos que permitissem potenciar o otium e o convivium são discutidos neste trabalho, com exemplos de sítios no Alto Alentejo.Roman villae were carefully designed to fulfil the urban and cosmopolitan way of living. Considering some archaeological sites in Alto Alentejo (Portugal, one intends to discuss the adjustment of the built structure to the landscape, the creation of chosen atmospheres by modelling the outer space, the countryside contemplation and the creation of spaces and indoor environments that would promote otium and convivium.

  15. Liquefaction Hazard Maps for Three Earthquake Scenarios for the Communities of San Jose, Campbell, Cupertino, Los Altos, Los Gatos, Milpitas, Mountain View, Palo Alto, Santa Clara, Saratoga, and Sunnyvale, Northern Santa Clara County, California

    Science.gov (United States)

    Holzer, Thomas L.; Noce, Thomas E.; Bennett, Michael J.

    2008-01-01

    Maps showing the probability of surface manifestations of liquefaction in the northern Santa Clara Valley were prepared with liquefaction probability curves. The area includes the communities of San Jose, Campbell, Cupertino, Los Altos, Los Gatos Milpitas, Mountain View, Palo Alto, Santa Clara, Saratoga, and Sunnyvale. The probability curves were based on complementary cumulative frequency distributions of the liquefaction potential index (LPI) for surficial geologic units in the study area. LPI values were computed with extensive cone penetration test soundings. Maps were developed for three earthquake scenarios, an M7.8 on the San Andreas Fault comparable to the 1906 event, an M6.7 on the Hayward Fault comparable to the 1868 event, and an M6.9 on the Calaveras Fault. Ground motions were estimated with the Boore and Atkinson (2008) attenuation relation. Liquefaction is predicted for all three events in young Holocene levee deposits along the major creeks. Liquefaction probabilities are highest for the M7.8 earthquake, ranging from 0.33 to 0.37 if a 1.5-m deep water table is assumed, and 0.10 to 0.14 if a 5-m deep water table is assumed. Liquefaction probabilities of the other surficial geologic units are less than 0.05. Probabilities for the scenario earthquakes are generally consistent with observations during historical earthquakes.

  16. Empresas electrónicas de alto potencial de crecimiento: Posicionamiento financiero ante retos de futuro

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    Nuria Arimany-Serrat

    2016-02-01

    Full Text Available Objetivo: La investigación posiciona les empresas electrónicas españolas a nivel financiero en el período 2011-2013 en el marco del espacio europeo; ya que el futuro mundo empresarial pasa por el progreso tecnológico y el impacto de las empresas electrónicas es decisivo y por tanto conocer su posición a nivel español y su situación económica financiera en los últimos años nos ayuda a delimitar como podrán afrontar los retos de futuro. Diseño/metodología/enfoque: Los datos que hemos utilizado para esta investigación, recogen los datos económicos financieros de una muestra de empresas electrónicas españolas consideradas de alto crecimiento ya que tienen un crecimiento del ROA mínimo del 3% y un crecimiento de los ingresos de explotación en el período analizado mínimo del 6%. Sobre estas compañías se lleva a cabo un análisis económico financiero y un estudio estadístico descriptivo con modelos de regresión para determinar resultados y conclusiones al respecto. Resultados: El estudio nos permite determinar la salud económica financiera de las empresas electrónicas que concentran un 97% de las ventas en España y determina variables financieras, de género y de innovación que inciden en los resultados de este sector empresarial, para determinar su sintonía en perspectiva europea. Limitaciones: Sería conveniente ampliar la muestra a otras empresas tecnológicas, a parte de la electrónicas, y ampliar el período temporal utilizado hasta el ejercicio 2014, aunque los datos no están disponibles en la base de datos SABI utilizada. Implicaciones prácticas: El trabajo permite valorar la proyección a nivel económico financiero de las empresas electrónicas en estos últimos años en España en relación con la situación europea, para poder valorar si podrán afrontar los retos de futuro inminentes. Implicaciones sociales: Los resultados permiten valorar los cambios a nivel económico financiero de estas empresas para

  17. Estudio geoeléctrico en el valle alto del Rio Patía

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    Pérez Cerón Rosalbina

    1995-10-01

    Full Text Available

    The resistivity survey carried out at the upper valley of the Patía River, provided good information to define the sedimentary sequence of the area. A general sequence from top to base is described as follows: recent deposits with resistivity values between 20 and 400 Ohrn-m, fine to medium grain, sandstones with resistivity values between 20 and 70 Ohrn-m, fine grain sandstones and silstones with resistivity values between 8 and 20 Ohrn-rn, and clayli basement, with resistivity less than 20 Ohm-m. There are two kinds of aquifers; free, related to sands and gravels from alluvial fans and terraces (resistivity values between 70 and 400 Ohrn-m and thickness between 25 and 75, semi-confined related to tertiary sandstones (resistivities values between 20 and 30 Ohm-m, thickness between 35 and 150 m. The water quality of the upper aquifers is good enough with small amounts of salt content. Saline water is found at the lower aquifer.

    The resistivity method was useful to locate geological discontinuities; some of them found with surface expression associated with lineaments and faults. Some of these geological features have been mapped in previous geological works on the area. In general the interpretation based on the resistivity results shows a block tectonics environment affecting cretaceous and tertiary rocks and probably the quaternary deposit.

    La prospección eléctrica en el valle alto del Rio Patía, permitió definir una secuencia típica constituida de techo a base por

  18. The academic training of the professional Agricultural engineer in Public University of El Alto (UPEA

    Directory of Open Access Journals (Sweden)

    Mayta-Mamani Adelio

    2015-11-01

    Full Text Available La agronomía ha significado para el ser humano desde sus orígenes una de las actividades más importantes y vitales, porque tienen relación con el sustento alimenticio en las sociedades. En la actualidad el agrónomo está frente a un importante reto, quizás el más importante desde la revolución industrial. Este reto se relaciona con los alimentos transgénicos, para lograr nuevas variedades de los cultivos y con nuevas propiedades. La carrera de Ingeniería Agronómica de la Universidad Pública de El Alto, cubre el espectro de formación universitaria vinculada a las características productivas y sociales de la economía del país. Por otra parte, el desarrollo de Ingeniería Agronómica tiene vínculos con el Instituto de Investigación y Extensión Agrícola de la Carrera y las instituciones públicas y privadas. Objeto de la profesión. La carrera de Ingeniería Agronómica, pretende contribuir a mejorar el nivel de producción y productividad de alimentos, generando ciencia y tecnología, y transfiriendo oportunamente a las unidades productivas para su implementación. Uno de los principios de la carrera de Ingeniería Agronómica es la recuperación y valoración de los conocimientos locales y ancestrales, la investigación participativa, armonizar esta situación, con el conocimiento convencional. Misión. Formar profesionales con alta capacidad técnica y científica, consciente del poder de conocimiento y comprometidos con el desarrollo rural sostenible, con libertad de pensamiento, dignidad, solidaridad, reciprocidad, respeto a la naturaleza y al prójimo, para responder con convicción frente a los grandes desafíos y oportunidades del mundo globalizado. Visión. Constituirse en una unidad académica de excelencia, referente a nivel nacional e internacional, que forma jóvenes profesionales del país, para desempañar trabajos; en producción agrícola, pecuaria y silvicultura, en diferentes pisos ecológicos para satisfacer

  19. Avances en la regulación y control del estado térmico del horno alto

    Directory of Open Access Journals (Sweden)

    Babich, A.

    1997-04-01

    Full Text Available An automated system of direction (SAD for the control of the thermal state of the hearth of the blast furnace is used, taking into account the interrelation existing between the pig iron temperature and its silicon content. By the magnitude of the thermal exergy of the process, which determines the heat work capacity the variations in the heating of the hearth can be valued and carried out the necessary control and regulation actions, such as the variations in the pulverized coal injection and in the sinter/coke relation in the melting bed of the blast furnace.

    Se utiliza un sistema automatizado de dirección (SAD para el control del estado térmico del crisol del horno alto, teniendo en cuenta la relación que existe entre la temperatura del arrabio y su contenido de silicio. Por la magnitud de la exergía térmica del proceso, que determina la capacidad de trabajo del calor, se pueden valorar las variaciones de calentamiento del crisol y realizar las acciones necesarias de control y regulación, como son las variaciones en la inyección de carbón pulverizado y en la relación sinterizado/coque en el lecho de fusión del horno alto.

  20. Análisis de la matutinidad-vespertinidad en jóvenes atletas de alto rendimiento

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    Alejo Sebastián García-Naveira Vaamonde

    2015-01-01

    Full Text Available El objetivo de este trabajo fue estudiar la relación entre la matutinidad-vespertinidad, la edad, el sexo, la ansiedad rasgo y la modalidad deportiva en depor- tistas adolescentes. La muestra estaba formada por 102 jóvenes atletas españoles de alto rendimiento (54 mujeres y 48 hombres con una edad entre los 14 y 17 años. Se midió la matutinidad-vespertinidad mediante la Escala Compuesta de Matutinidad-Vespertinidad (CS y la ansiedad rasgo mediante el Inventario de Ansie- dad Estado-Rasgo (STAI. Los resultados indican que no existe relación entre el cronotipo, la edad, el sexo y la ansiedad de los deportistas, mientras que estos son más matutinos que la población general de adolescentes y los velocistas/vallistas son más vespertinos que el resto de modalidades. Se concluye que la práctica deportiva de alto rendimiento puede que sea un Zeitzbergs ex- terno que modifica aspectos psicológicos, fisiológicos y bioquímicos de los jóvenes.

  1. Estudio farmacoepidemiológico de uso de antiinflamatorios no esteroideos en pacientes de alto riesgo cardiovascular

    Directory of Open Access Journals (Sweden)

    Jorge Enrique Machado-Alba

    Full Text Available Con el objetivo de determinar la frecuencia de uso prolongado de antiinflamatorios no esteroideos (AINES en pacientes colombianos de alto riesgo cardiovascular (ARC se desarrolló un estudio retrospectivo en el cual se identificaron pacientes de ARC que usaron AINES por más de cinco meses continuos entre enero de 2011 y marzo de 2013. Se identificó a los pacientes que recibían crónicamente nitratos, digitálicos, y clopidogrel y ácido acetil salicílico (ASA, quienes fueron identificados como de ARC. Se realizó un análisis de frecuencias de uso según la comedicación recibida. Se encontró uso concomitante de AINES en el 0,35% de los consumidores de nitratos (tiempo promedio: 9,5 ± 4,4 meses, en el 0,36% de los consumidores de clopidogrel y ASA (tiempo promedio: 9,3 ± 3,4 meses, y en el 0,4% de los consumidores de digitálicos (10,2 ± 4,6 meses. Se concluye que existe una baja proporción de uso de AINES de manera crónica en pacientes de alto riesgo cardiovascular.

  2. Caracterización de carbones para la inyección por toberas en el horno alto

    Directory of Open Access Journals (Sweden)

    Babich, A.

    1998-05-01

    Full Text Available The efficiency of blast furnace operation with pulverized coal injection (PCI by tuyeres is determined by the composition and properties of the used coals and by the quality of the ferrous burden and coke. A study in thermobalance of coals to be injected by tuyeres is carried out, and the softening and melting temperatures of coals ash are determined. The coal performance and its influence in the blast furnace operation is estimated.

    La eficacia de la operación del horno alto con inyección de carbón pulverizado (ICP por toberas, está determinada por la composición y propiedades de los carbones utilizados y por la calidad de la carga férrea y del coque. Se realiza el estudio en termobalanza de carbones destinados a la inyección por toberas y se determinan las temperaturas de reblandecimiento y fusión de la ceniza de estos carbones. Se estima el comportamiento de los carbones y su influencia en la operación del horno alto.

  3. Floristic Diversity of Two Zones of Humid Tropical Forest at Alto Baudó, Chocó, Colombia

    Directory of Open Access Journals (Sweden)

    Luis Javier Mosquera Ramos

    2007-08-01

    Full Text Available Between June and August of 2005 the floristic composition ≥1 cm of DAP was determined in an area of ? 0.2 ha of humid tropical forest at the localities of Pie de >Pató (05º 30' 56" N and 76º 58' 26" W and Nauca (5º 41' 6" N and 77º 00' 36" W, Alto Baudó, Chocó Colombia . En each locality an area of 0.1 ha was sampled which was divided into smaller areas of 2 x 50 cm each. A total of 1618 inidivduals were recorded represented by 257 species, 156 genres and 56 botanical families from which 842 individuals, 161 species, 108 genres and 46 families where found at Pie de Pató, and 776 individuals, 161 species, 98 genres and 45 families at Nauca. At Pie de Pató the families best represented in terms of genres were Rubiaceae (12 genres and 27 species, Arecaceae (eight genres and eight species and Bombacaceae (seven genres and ten species. At Nauca they were Rubiaceae (eleven genres and 25 species, Moraceae (eight genera and 13 species and Arecaceae (eigth genres and eight species. The richness index was of 23,75 and 24,05 for Pie de Pató and Nauca respectively. Diversity change was stimated as 4,43 for both localities. These results indicate high diversity of these forests at Alto Baudó.

  4. Sílica gel obtida de escória de alto forno: Marabá, Pará

    Directory of Open Access Journals (Sweden)

    M. M. Rebelo

    2015-09-01

    Full Text Available ResumoSílica gel com propriedades similares à sílica comercial foi obtida a partir de escória de alto forno (EAF, utilizando digestão com ácido clorídrico. A EAF-sílica obtida foi caracterizada por diferentes técnicas, mostrando-se amorfa, com pureza 99,7% e área específica 282 m2/g. Apresentou caráter hidrofílico alto (12,27%, com água de constituição de ~ 6,18%, o que foi confirmado pela perda de massa durante a análise termogravimétrica. As partículas de EAF-sílica apresentaram tamanhos micrométricos (< 1 µm em forma de agregados, distribuição granulométrica unimodal e D50 7,0 µm.

  5. O suicídio Tikúna no Alto Solimões: uma expressão de conflitos

    Directory of Open Access Journals (Sweden)

    Regina M. de Carvalho Erthal

    Full Text Available O objetivo deste trabalho é buscar um entendimento a respeito da ocorrência de suicídios entre os índios Tikúna do Alto Solimões (Amazonas, um objeto de difícil aproximação e que aponta para a necessidade de abordagem interdisciplinar. A etnografia realizada preocupou-se em captar a vinculação entre os eventos de suicídio da última década com a exacerbação dos confrontos entre diferentes grupos faccionais que atualizam, em outro contexto histórico, os mecanismos de resolução de conflitos próprios das antigas malocas. Na base desses confrontos está o abandono a que tal população tem sido submetida pelos órgãos responsáveis pela definição e implementação das políticas públicas para as populações indígenas, com especial destaque para a falência do modelo de assistência proposto para a área do Alto Solimões.

  6. Angioplastia del tronco de la arteria coronaria izquierda no protegido en pacientes con alto riesgo quirúrgico

    Directory of Open Access Journals (Sweden)

    Victor Mauro

    2008-01-01

    Full Text Available IntroducciónEl tratamiento de elección de la enfermedad del tronco de la coronaria izquierda (TCI es la cirugía de revascularización miocárdica (CRM. Un número creciente de pacientes presenta comorbilidades y/o inestabilidad clínica que condicionan un alto riesgo quirúrgico.ObjetivosEvaluar los resultados de la angioplastia (ATC del TCI no protegido en pacientes con alto riesgo para CRM (EUROSCORE = 6.Material y métodosDe 59 pacientes con ATC de TCI no protegido se excluyeron 8 con infarto agudo de miocardio (IAM en shock cardiogénico y 12 sin características de alto riesgo; de los restantes pacientes de alto riesgo fueron objeto de este estudio los 32 tratados con stents convencionales.Se comparó la mortalidad hospitalaria predicha por EUROSCORE logístico con la observada, así como la incidencia de complicaciones mayores y su evolución alejada.ResultadosLa mediana de edad fue de 76,5 años, el 41% tenía 80 años o más, el 22% eran mujeres, el 28% diabéticos, el 56% tenía disfunción ventricular moderada a grave, el 31% insuficiencia renal crónica, el 50% vasculopatía periférica, el 53% angina refractaria, el 22% IAM reciente, el 28% procedimientos de emergencia y la mediana de EUROSCORE fue de 10,5 puntos.El 41% de los pacientes presentaban compromiso del TCI distal. El éxito angiográfico fue del 94%. Se utilizaron inhibidores IIb/IIIa en el 47%, cutting balloon en el 28%, Rotablator® en el 3% y balón de contrapulsación en el 31%. En todos se implantó un stent y en el 50% se trataron otras obstrucciones.La mortalidad hospitalaria fue del 3,1% (intervalo de confianza del 95% 0,2%-14,5%, p = 0,003, en tanto que la predicha era del 23,8%. Ningún paciente presentó déficit neurológico, IAM transmural ni requirió diálisis. Un paciente debió ser sometido a CRM electiva por fracaso del procedimiento.La mediana de seguimiento fue de 15,5 meses, período en el que se registraron 6 muertes (2 cardiovasculares y 4

  7. Ecoturismo en Ecuador: El caso del Oglán alto

    Directory of Open Access Journals (Sweden)

    Pedro Hernández Pardo

    2011-12-01

    Full Text Available Ecuador es un país con unos grandes recursos naturales que han sido explotados a lo largo de su historia, posee una gran biodiversidad, Amazonia, Sierra y Costa, y una gran  riqueza  cultural.  Una  forma  de  aprovechar  esos recursos  de  una  forma  sostenible  y  permitiendo  el desarrollo  económico  es  el  eco  turismo,  en  todas  sus tipologías. Para que el turismo sea sostenible hay que entender las necesidades, los activos potenciales y los valores culturales del área donde se va desarrollar. La creación de empleo estable y de calidad, debe ser parte de esa sostenibilidad, porque es fundamental para que la población  pueda  percibir  los  beneficios  del  turismo. Para conseguirlo   es   necesario   la   existencia   de emprendedores   capaces   de   formar   microempresas, pequeñas  y medianas  empresas,  que  sean  rentables  y generadoras de empleo. La cultura indígena amazónica es básicamente  comunitaria  y  agrícola  por  lo  que  es difícil la creación de actividades empresariales por esas comunidades.   Pero   desde   hace   ya   años,   estas comunidades indígenas,  están perdiendo su cultura, su lengua,  y  su  propia  vida  natural,  adquiriendo  valores occidentales que nada tienen que ver con los suyos. El eco turismo es una buena forma de recuperar sus valores, su cultura y sus tradiciones, y a la vez, una forma de asegurar su progreso economico respetando su hábitat natural   y   sus   recursos   de   una   forma   sostenible, permitiendo   que   actividades   destructivas   como   la madera y el petróleo, sean abandonadas. Un ejemplo lo tenemos en el Oglán Alto, donde la comunidad quechua “Pablo  López”  ha  decidido  proteger  su  patrimonio ancestral   mediante   la   creación   de   una   Estación Científica,  gracias  a  un  acuerdo  con  la  Universidad Central

  8. Avaliação da conduta conservadora na lesão intraepitelial cervical de alto grau

    Directory of Open Access Journals (Sweden)

    Nelson Shozo Uchimura

    2012-06-01

    Full Text Available OBJETIVO: Analisar a associação entre a conduta conservadora em lesão intraepitelial cervical de alto grau com o índice de recidiva da neoplasia e faixa etária. MÉTODOS: Estudo transversal e retrospectivo realizado com 509 mulheres (15-76 anos atendidas no período de 1996 a 2006, com colpocitologia oncótica alterada, em um serviço público de referência em Maringá, PR. Os dados foram coletados dos prontuários médicos e estudadas as variáveis diagnóstico definitivo, tipos de tratamento, ocorrência da lesão e recidivas, analisados por meio de testes de associação de qui-quadrado de Pearson e teste exato de Fisher. RESULTADOS: A lesão intraepitelial cervical de alto grau ocorreu em 168 casos; destes, 31 mulheres foram submetidas à amputação cônica, 104 a cirurgias de alta frequência, nove histerectomizadas e 24 receberam conduta conservadora. Dentre as mulheres com lesão de alto grau e tratadas de forma conservadora, oito (33,3% recidivaram, enquanto dentre as submetidas à conduta não conservadora dez (6,9% recidivaram, sendo essa diferença estatisticamente significante (p = 0,0009, RP = 4,8 (IC95% 2,11;10,93. Para aquelas que fizeram o seguimento clínico-citológico, três (30,0% e, dentre as cauterizadas, cinco (35,7% recidivaram no prazo de três anos, sem diferença significante (p = 0,5611. A recidiva abaixo e acima de 30 anos ocorreu, respectivamente, em sete (13,8% e 11 (12,2% mulheres (p = 0,9955. CONCLUSÕES: A idade da mulher não influencia o prognóstico de recidiva. O tratamento conservador deve ser indicado como conduta de exceção, dada a alta taxa de recidiva, e o seguimento deve ser rigoroso, com acompanhamento citológico e colposcópico de até três anos, período em que ocorre a maioria das recidivas.

  9. CRECIMIENTO DEL MAÍZ EN VERTISOLES CON ALTO ALUMINIO EN LA BAIXADA MARANHENSE PRE-AMAZONIA, BRASIL

    Directory of Open Access Journals (Sweden)

    Alessandro Costa da Silva

    2014-01-01

    Full Text Available Crecimiento del maíz en vertisoles con alto aluminio en la Baixada Maranhense pre-Amazonia, Brasil. El objetivo de este trabajo fue evaluar el crecimiento del maíz en suelos con alto contenido de aluminio. Se midió el efecto del Al3+ en raíces y la cantidad de materia seca (raíz, hoja y tallo de maíz. Se efectuó la caracterización físico-química de cuatro muestras de suelo con alto aluminio colectadas del horizonte Ap, en tres municipios de la región conocida como Baixada Maranhense (Pre-Amazonia, Brasil: Santa Rita (SR, Arari (AR y Vitoria do Mearim (VM y un testigo colectado en el municipio de São Luís, Área del Núcleo de Tecnología Rural (T. El estudio, ejecutado en 2009, se llevó a cabo en invernadero y se utilizó 2 dm3 de suelo por maceta. Asimismo las muestras fueron divididas en muestras con y sin fertilización. La variación en la longitud de la raíz y de materia seca de las hojas difirió significativamente entre tratados con y sin fertilizante, excepto en la muestra de la localidad T. La producción de materia seca de raíz, tallo y hoja fue mayor en todos los suelos cuando se fertilizó. El suelo testigo también superó a todos los demás en cuanto a producción de materia seca en la raíz, posiblemente como resultado de una menor cantidad de Al3+ (1,2 cmolc/dm3 en comparación con los suelos SR, AR y VM (6,8; 8,0 y 7,0 cmolc/dm3 respectivamente. Se concluye la fertilización reduce el efecto detrimental del aluminio en la producción de maíz en la Baixada Maranhense.

  10. ¿El buen entrenador nace o lo hace el deportista? El camino hacia el alto nivel en triatlón

    Directory of Open Access Journals (Sweden)

    Germ\\u00E1n Ruiz Tendero

    2014-01-01

    Full Text Available La figura del entrenador adquiere un peso importante en el sistema deportivo y por tanto en el éxito de sus deportistas. Las claves de su éxito han sido estudiadas desde diferentes perspectivas. El estudio en retrospectiva del recorrido por el cual se llega al alto nivel es una de ellas. El propósito de este estudio fue determinar el camino de los entrenadores de triatlón previo a su llegada al alto nivel, así como las circunstancias en las que se produjo el paso hacia el alto rendimiento. Para ello se entrevistó a una muestra de 14 entrenadores españoles de alto nivel en triatlón. Los resultados muestran un recorrido prevalente en el que el entrenador fue anteriormente deportista y entrenador en alguna/s de las disciplinas fundamentales (DF de las que se compone el triatlón (natación, ciclismo, atletismo, llegando al alto nivel de triatlón con una edad aproximada de 30 años. Los años de experiencia previa varían en función del pasado del entrenador, no llegándose a alcanzar los 10 años de media en ningún caso, hasta el inicio en la etapa de alto nivel. Sería recomendable, por tanto, contextualizar los años de experiencia previos, para optimizar la selección de muestras de entrenadores expertos.

  11. Organización socioeconómica y territorial en la región del Alto Lerma, Estado de México

    Directory of Open Access Journals (Sweden)

    Estela Orozco Hernández

    2012-02-01

    Full Text Available Este trabajo muestra que la región del Alto Lerma es un espacio de organización compleja, donde se entrelazan procesos sociales y territoriales diversos, representados por la existencia de estructuras agrarias, urbanas e industriales. Cada una de estas estructuras tiene necesidades e intereses que definen las formas de apropiación, control y producción del espacio regional y, por lo tanto, constituyen factores determinantes de la configuración socioterritorial del Alto Lerma. Se analiza la información estadística oficial, así como los trabajos disponibles, desde una perspectiva hipotético-deductiva.

  12. IRMANDADE DO ROSÁRIO DOS PRETOS DE SANTA EFIGÊNIA DO ALTO DA CRUZ: PROPOSTA DE GESTÃO DE UM ARQUIVO EM OURO PRETO (MG).

    OpenAIRE

    Silva, Laurimar Gomes da

    2009-01-01

    A proposta deste projeto visa atender a uma demanda da Irmandade do Rosário dos Pretos de Santa Efigênia do Alto da Cruz na cidade de Ouro Preto (MG), a fim de consolidar parcerias no sentido de preservar e gerir o arquivo. Fundada em 1719, compondo uma das vinte irmandades encontradas na cidade, a Irmandade do Rosário dos Pretos de Santa Efigênia do Alto da Cruz se particulariza por ser a responsável pela administração da igreja barroca de Santa Efigênia, que no imaginário ...

  13. Tolerancia a la violencia de pareja en tres historias de vida de mujeres de estrato económico alto de Lima

    OpenAIRE

    Mujica, Jaris; Bedoya, Silvana

    2017-01-01

    Objetivo: esta investigación analiza la presencia de violencia física y psicológica ejercidas por la pareja (varón) a una víctima (mujer) en el estrato económico alto de Lima. Método: se recolectaron los datos a través de la técnica “historia de vida” en un registro profundo de los discursos de tres mujeres adultas del estrato económico alto. Resultados: los resultados ratifican resultados de la literatura precedente (concentrada en sectores de medios y bajos recursos económicos) en las forma...

  14. Prática pedagógica aos educandos com deficiência intelectual numa escola de ensino fundamental com alto IDEB

    OpenAIRE

    Wilma Carin Silva Porta

    2015-01-01

    No atual contexto da inclusão escolar, em que os educandos com deficiência intelectual constituem a maioria dentre os demais deficientes, indagações sobre a atuação dos professores da sala comum das escolas com alto Índice de Desenvolvimento da Educação Básica (Ideb) com esta população, tornam-se sobremaneira importantes. O presente estudo teve como objeto de análise a prática pedagógica na perspectiva inclusiva, de professores do ciclo I do ensino fundamental, numa escola com alto índice do ...

  15. Patrimonio Gastronómico e Turismo Como Estrategia de Desarrollo Local en El Alto Lerma, Toluca - México

    Directory of Open Access Journals (Sweden)

    Alejandro Tonatiuh Romero Contreras

    2012-11-01

    Full Text Available Este artigo tem como objetivos descrever e caracterizar a formação da cozinha tradicional da região de Alto Lerma, a fim de reconhecer o patrimônio culinário existente, iniciando pela parte mais básica da gastronomia desta região, no Valle de Toluca, México. Assim como o potencial para o desenvolvimento local das comunidades detentoras de tal saber. A fim de alcançar tais objetivos, utilizou-se a informação geográfica, arqueológica e etnográfica de projetos publicados, bem como teses profissionais e pesquisas de campo, identificando aquelas características ou sabores que conferem o caráter regional através do tempo.

  16. Projeto Sabura: dez anos a ultrapassar barreiras e a quebrar estigmas no Bairro do Alto da Cova da Moura (BACM)

    OpenAIRE

    Marco Pais Neves dos Santos

    2017-01-01

    O Sabura é um projeto pioneiro no panorama do turismo étnico português que funciona no Bairro do Alto da Cova da Moura (BACM) e que recentemente comemorou uma década de existência (2004/2014). Neste trabalho fazemos a primeira apresentação pública dos resultados deste projeto. Começamos com uma introdução e seguidamente apresentamos um enquadramento histórico-geográfico do BACM, um breve historial da Associação Cultural Moinho da Juventude (ACMJ) e uma descrição da origem e evolução do Sabura...

  17. IMPACTOS DA ATIVIDADE TURÍSTICA À ECONOMIA MUNICIPAL DE ALTO PARAÍSO DE GOIÁS, BRASIL

    Directory of Open Access Journals (Sweden)

    Tathiana Rodrigues Salgado

    2014-01-01

    Full Text Available El turismo en Alto Paraíso de Goiás tiene un papel importante en la economía de la ciudad, ya sea moviendo las tiendas locales o mediante la generación de puestos de trabajo directos y de temporada. Sin embargo, una vertiente poco explorada por los administradores municipales son los ingresos fiscales relacionados con este segmento económico, como se ve en la investigación. El flujo de turistas, contribuye poco a la formación de las finanzas municipales, principalmente debido a la falta de una legislación específica para mejorar el uso de las actividades turísticas.

  18. Avaliação do património vegetal natural do Alto Douro Vinhateiro 2001 -2012

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    Paulo Farinha-Marques

    2014-06-01

    Full Text Available O Alto Douro Vinhateiro é uma paisagem cultural evolutiva viva, património mundial desde 2001. Dez anos após a distinção foi feito um estudo multidisciplinar sobre o seu estado de conservação. No trabalho que aqui se apresenta avalia-se a evolução, entre 2001 e 2012, das classes de uso do solo que codificam o património natural do ADV: Matos e Matas, Pinhais e Galerias Ripícolas. A avaliação foi feita com base em quatro locais de amostragem associados a paisagens de referência. Discute-se a incidência das transformações detetadas e as suas implicações na manutenção do caráter de mosaico da paisagem e na diversidade sensorial e ecológica.

  19. RELATION OF IDENTITY- POLITICAL CULTURE IN THE INDIGENOUS AUTONOMY FORMATION. CASE STUDY IN “LOS ALTOS CHIAPAS” COMMUNITY

    Directory of Open Access Journals (Sweden)

    Víctor Manuel Santos Chávez

    2006-04-01

    Full Text Available SUMMARY The assumption of new studies about the indigenous movement in Mexico involves the need for articulating political and cultural dimensions of some social groups, as well as the reformulation of how that kind of studies should be done: In this study the need for combining the political dimensions (local power structure and cultural dimensions (ethnic identity redefinitions is established in order to examine the implications that such relationship has in the uprising of new indigenous movements and the emergence of de facto indigenous autonomies: To carry out this study, we had to think about the researching questions from a given referent , in this case it was a community from Los Altos the Chiapas. This community gave us the actual elements for the discussion of concrete research, the new indigenous movement in Chiapas and the indigenous autonomy.

  20. REPERCUSIONES TERRITORIALES DE LA POLÍTICA AGRARIA COMUNITARIA SOBRE LAS ESTRUCTURAS AGRARIAS DEL ALTO Y MEDIO VINALOPÓ (ALICANTE

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    Antonio M. Rico Amorós

    1995-01-01

    Full Text Available a política de estructuras agrarias de la Unión Europea, sometida ahora a un hondo proceso de reflexión y reforma, ha propiciado en el Alto y Medio Vinalo- pó una serie de repercusiones estructurales, productivas, y espaciales. Las pri- mas que regulan el arranque definitivo de superficies de viñedo, con más de 7.000 Has arrancadas hasta la actualidad constituyen su más relevante exponen- te, aunque no es el único ni mucho menos. Este trabajo persigue la identificación y evaluación de las líneas de ayuda comunitarias, estatales, y autonómicas, de efectos espaciales más relevantes, sometiendo los mismos a reflexión.

  1. CARACTERIZACIÓN Y EVALUACIÓN DE LA SUSTENTABILIDAD DE FINCAS EN ALTO URUBAMBA, CUSCO, PERÚ*

    OpenAIRE

    Merma, Isaías; Universidad Nacional San Antonio Abad del Cusco (Perú).; Julca, Alberto; Universidad Nacional Agraria La Molina (Perú).

    2012-01-01

    El estudio se llevó a cabo en la provincia de La Convención, Cusco – Perú, en la región geográfica de selva alta conocida como Alto Urubamba. Tiene como objetivo evaluar las características prediales y medir la sustentabilidad de fincas a través de indicadores adaptados al lugar. Se recogió información de campo tanto en términos biofísicos y socio-económicos y se analizó en variables seleccionadas, a partir de una base de datos aplicando programas como SPSS, MINITAB y Análisis Cluster. Los re...

  2. A biocultural perspective on fictive kinship in the Andes: social support and women's immune function in El Alto, Bolivia.

    Science.gov (United States)

    Hicks, Kathryn

    2014-09-01

    This article examines the influence of emotional and instrumental support on women's immune function, a biomarker of stress, in the city of El Alto, Bolivia. It tests the prediction that instrumental support is protective of immune function for women living in this marginal environment. Qualitative and quantitative ethnographic methods were employed to assess perceived emotional and instrumental support and common sources of support; multiple linear regression analysis was used to model the relationship between social support and antibodies to the Epstein-Barr virus. These analyses provided no evidence that instrumental social support is related to women's health, but there is some evidence that emotional support from compadres helps protect immune function. © 2014 by the American Anthropological Association.

  3. Agroindustria y extractivismo en el Alto Cauca. Impactos sobre los sistemas de subsistencia Afrocampesinos y resistencias (1950-2011

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    Irene Vélez Torres

    2013-12-01

    Full Text Available La agroindustria y el extractivismo han generado un profundo cambio en las prácticaseconómicas tradicionales del Alto Cauca en Colombia en detrimento de los sistemas socio-económicos de subsistencia de la población local Afro-campesina. El intenso conflictoarmado y la migración forzada han acompañado la instauración de estos modelos de acumulaciónpor despojo. Utilizando una metodología de investigación participativa, este artículoanaliza críticamente la disputa por el acceso y la propiedad sobre la tierra y los bienesambientales del territorio, rescatando el punto de vista de comunidades Afrodescendientesy organizaciones sociales que han resistido desde la colonia y hasta nuestros días para defendersus pueblos y territorios.

  4. Estudio florístico y aportaciones a la conservación del alto Cabriel (Cuenca)

    OpenAIRE

    Mayoral García-Berlanga, Olga

    2011-01-01

    El alto Cabriel es un área montañosa inmersa en plena Serranía de Cuenca (Sistema Ibérico meridional), con altitudes entre los 910 y los 1.840 m. La zona de estudio com-prende 93.311 hectáreas -repartidas en 20 cuadrículas UTM de 10 km de lado- y 16 muni-cipios. Casi la mitad de la longitud del río Cabriel, afluente izquierdo del Júcar, discurre por la zona de estudio. Dominan las litologías calcáreas, destacando dos afloramientos de areniscas del Bundsandstein. Desde un punto de vista bio...

  5. Género, leña y sostenibilidad: el caso de una comunidad de los Altos de Chiapas

    Directory of Open Access Journals (Sweden)

    Denise Soares

    2006-01-01

    Full Text Available In this paper we analyse the strategies of use and management of firewood by the families in Pozuelos, a community of the municipality of Chamula, located in the Altos de Chiapas. We also explain the factors that promote or hinder the acceptance of alternative technologies that aim to reduce the consumption of firewood among rural families and thus decrease the female workload and increase the conservation of the woods. The analysis is focussed on the times and workloads of bio-fuel supply as well as on the complementarity of functions in the domestic nucleus for the collection of the resource and on the factors that interfere with technology appropriation, in this case wood-saving stoves. This work identifies the role of the women as administrators of the forestal resources for energy purposes and points out the factors that restrict the acceptance of technological changes as sociocultural, economical, climatic and technical.

  6. Inteligencia fluida y cristalizada en el autismo de alto funcionamiento y el síndrome de Asperger

    OpenAIRE

    Pérez Rivero, Paula Fernanda; Martínez Garrido, Lía Margarita

    2015-01-01

    La inteligencia en los trastornos del espectro autista, especialmente en el autismo de alto funcionamiento y el síndrome de Asperger, ha sido tema de numerosas investigaciones que pretenden establecer la capacidad intelectual que se observa en estos sujetos. Algunos de los resultados más sobresalientes señalan que la inteligencia fluida es uno de los aspectos de desempeño superior en esta población, en comparación con el desempeño en las pruebas que miden inteligencia cristalizada como la esc...

  7. Economic Valuation of Cultural Heritage: Application to a museum located in the Alto Douro Wine Region– World Heritage Site

    Directory of Open Access Journals (Sweden)

    Susana Fonseca

    2010-04-01

    Full Text Available Cultural assets are increasingly being considered in the policies of social and economic development of territories due to spillover effects. However, since cultural assets are not transacted in the market, their use value should be calculated using indirect methods of evaluation or non market techniques. In this paper, the travel cost method was chosen to estimate the curve of demand in the Museum of Lamego which constitutes an important cultural item of the Alto Douro Wine Region, classified by UNESCO in 2001, as a world heritage site – a living and evolving cultural landscape. The results of the application of the Poisson model confirm the expected, that is, the probability of visiting the museum is positively influenced by the educational level, female gender and negatively by the travel cost.

  8. PERCEPCIONES DE LOS SISTEMAS DE TRABAJO DE ALTO RENDIMIENTO E INTENCIÓN DE MARCHA. UN ANÁLISIS MULTINIVEL

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    García Chas, Romina

    2012-09-01

    Full Text Available La investigación sobre los sistemas de trabajo de alto rendimiento (STAR se ha centrado principalmente en el efecto sobre el rendimiento organizativo desde una perspectiva directiva. Este estudio diferencia entre la perspectiva de los empleados y los directivos sobre los STAR y examina la relación entre ambas perspectivas y la intención de marcha en una muestra conformada por ingenieros, utilizando la metodología multinivel. Los resultados indican que existen importantes diferencias entre la percepción de los empleados del STAR y la percepción de los directivos y que el STAR intentado afecta solo indirectamente (a través del STAR experimentado a la intención de marcha de los ingenieros.

  9. Tendencias en la síntesis de alcohol polivinílico de alto peso molecular

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    José Ernesto Perilla

    1998-09-01

    Full Text Available En el presente artículo se comentan los resultados de algunas publicaciones realizadas acerca de la producción de alcohol polivinílico, PVOH, de alto peso molecular. Los estudios sobre la producción de un polímero de estas características toman dos vertientes principales. La primera consiste en la polimerización del acetato de vinilo, VAM, a temperaturas bajas, donde las reacciones de transferencia de actividad de cadena a polímero se vean reducidas, y la segunda la producción de PVOH por la hidrólisis de polivinil ésteres, obtenidos por polimerización de monémeros diferentes del VAM.

  10. CARACTERIZAÇÃO MORFOESTRUTURAL DO ALTO CURSO DA BACIA HIDROGRÁFICA DO RIO JAGUARIBE, CEARÁ-BRASIL

    OpenAIRE

    Mickaelle Braga da Silva; Rubson Pinheiro Maia

    2017-01-01

    O presente trabalho propõe uma análise morfoestrutural do alto curso da bacia hidrográfica do rio Jaguaribe, Ceará-Brasil, através da relação litologia/drenagem/relevo. A análise baseou-se em levantamentos bibliográficos e cartográficos; na aplicação de técnicas de geoprocessamento e tabulação e análise dos dados. Dentre os produtos de sensoriamento remoto disponíveis para a área, destacam-se os dados Shuttle Radar Topography Mission-SRTM, com resolução espacial de 30 metros. Este produto com...

  11. Gentrificación de La Candelaria: reconfiguraciones de lugar de residencia y consumo de grupos de altos ingresos

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    Adrian Smith Manrique Gómez

    2013-01-01

    Full Text Available El sector de La Candelaria (Bogotá D. C., Colombia ha vuelto a ser un lugar de consumo y residencia de grupos de personas de altos ingresos económicos, luego de su abandono a mediados del siglo XX por efecto de múltiples problemáticas urbanas. Esta dinámica de relocalización es conocida por la geografía urbana como gentrificación; tendencia previamente registrada en otras urbes e integrante del proceso global de construcción urbana. El artículo ofrece una lectura de dicha dinámica urbana bogotana a partir del análisis de sus causas, el seguimiento a su funcionamiento y sus consecuencias.

  12. Tipología de productores y sostenibilidad de cultivos en Alto Urubamba, La Convención – Cusco

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    Isaías Merma

    2012-01-01

    Full Text Available La investigación se llevó a cabo en la región geográfica del Alto Urubamba, provincia de La Convención, Cusco – Perú. El objetivo fue identificar tipos de productores y evaluar la sostenibilidad de cultivos en fincas agrícolas de selva alta. Para la tipología se aplicó encuestas a una muestra de 106 productores tanto en términos biofísicos como socio-económicos analizándose la información mediante la estadística descriptiva. Luego se identificó los tipos de productores mediante el análisis multivariado utilizando variables previamente seleccionadas. Asimismo se evaluó la sostenibilidad de ocho cultivos tropicales; para esto, se seleccionó tres fincas por cultivo de un total de 24 fincas evaluadas. Se utilizó índices prácticos de calidad del suelo y salud del cultivo con una valoración de 0 a 10 y se calificó con la participación de los productores. Los resultados muestran que en la zona existen tres tipos de productores según su eficiencia en el manejo de recursos y su lógica económica. Los cultivos de té (6.65 y mango (6.50 obtienen los valores más altos de sostenibilidad, seguidos del café (6.25, cacao (6.25, cítricos (5.50, plátano (5.45 y coca (5.10. La papaya (4.60 muestra un valor menor a cinco, lo que califica a este cultivo como no sustentable para las condiciones en estudio.

  13. TENDÊNCIAS HIDROLÓGICAS NO ALTO CURSO DA BACIA HIDROGRÁFICA DO RIO UBERABA, EM MINAS GERAIS

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    Vítor de Oliveira Santos

    2016-06-01

    Full Text Available O aumento da demanda hídrica por parte das médias e grandes cidades brasileiras tem gerado preocupações no poder público quanto ao abastecimento urbano. Na contramão do aumento da demanda por água, os sistemas hídricos parecem não mais suprir as necessidades impostas pela sociedade, sobretudo nos períodos de estiagem. A bacia hidrográfica do rio Uberaba ilustra esse cenário pois vem sofrendo escassez hídrica desde o início dos anos 2000. Desde então percebe-se a realização de medidas urgentes como a transposição das águas do rio Claro para suprir a demanda hídrica da cidade de Uberaba, além da criação da Área de Proteção Ambiental – APA rio Uberaba. Este trabalho tem como objetivo central analisar estatisticamente, através de testes de tendência, séries históricas de vazão no âmbito do alto curso do rio Uberaba. Justifica-se a escolha do alto curso do referido rio como objeto de estudo o fato de o abastecimento público do município de Uberaba ser realizado dentro de seus limites. Como método utilizou-se os testes de regressão linear, Mann-Kendall, Mann-Kendall Sazonal, Curvatura de Sen e o teste de homogeneidade de Pettitt. Os resultados indicam paulatina redução das vazões de estiagem e ligeiro aumento das vazões máximas.

  14. Vidrios de silicato a partir de residuos galvánicos con alto contenido en Cr y Ni

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    Mello-Castanho, S. R. H.

    2006-02-01

    Full Text Available The environmental and human health related with harmful industrial waste is nowadays an issue of worldwide great concern. Particularly the case of galvanic solid waste, because of its high content in heavy metals, it is highly harmful from both environmental and human health point of view. In this study, glasses containing up to 40 wt% of galvanic waste with a high content of chromium and nickel were obtained. The chemical stability of these glasses was studied by hydrolytic, alkaline and acid attack. Finally the different glasses were studied by X-ray diffraction, X-ray fluorescence and infrared spectroscopy techniques in order to rationalize and to understand its observed chemical stability.

    La eliminación de los residuos industriales tóxicos, es en la actualidad un objetivo prioritario a nivel mundial. Para el caso particular de los residuos sólidos galvánicos, su alto contenido en metales pesados resulta perjudicial tanto para la salud como para el medio ambiente. En este trabajo se han obtenido vídrios con un 40% en peso de residuos galvánicos de alto contenido en cromo y níquel. La estabilidad química de los vídrios obtenidos fue comprobada mediante ensayos de resistencia al ataque hidrolítico, ácido y alcalino. Finalmente, los diferentes vídrios fueron caracterizados por diferentes técnicas difración de rayos-X, fluorescencia de rayos-X, espectrometría infrarroja.

  15. Índice hiperbárico en la prevención primaria de las complicaciones hipertensivas del embarazo de alto riesgo

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    Alfonso Otero González

    2015-11-01

    Resultados: En las gestantes remitidas a consulta de Nefrología (38,2%, diagnosticadas de alto riesgo de PE y tratadas con AAS 100 mg nocturno (desde la semana 17 se redujo la incidencia de episodios de PE un 96,94%.

  16. Quasi una mostra. Giulio Carlo Argan, Wart Arslan e l'allestimento del Museo dell'Alto Adige tra propaganda e museografia, 1933-1939

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    Angelini, Gianpaolo

    2015-10-01

    Full Text Available L’articolo prende in esame la riorganizzazione del Museo dell’Alto Adige a cura di Wart Arslan negli anni 1933-1938 in relazione alle scelte dell’allestimento, alla propaganda di regime, agli studi sulla pittura barocca nel primo Novecento, sulla scorta dell’epistolario di Arslan e degli articoli apparsi sulla stampa specialistica.

  17. Parasitosis intestinal, su relación con factores ambientales en niños del sector "Altos de Milagro", Maracaibo Intestinal parasitosis, its relation to environmental factors in children from the "Altos de Milagro", Maracaibo

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    Madeline Espinosa Morales

    2011-09-01

    Full Text Available INTRODUCCIÓN: El parasitismo intestinal de conjunto con otras enfermedades infecciosas trasmisibles, constituye el motivo por el cual un gran número de pacientes acude a los consultorios populares en la República Bolivariana de Venezuela; dentro de ellos predominan los niños y adolescentes, debido a la pobre condición higiénico- sanitaria de las barriadas. OBJETIVO: Determinar la presencia de algunos factores ambientales condicionantes en niños parasitados, del sector "Altos de Milagro"Norte, Maracaibo estado Zulia, entre diciembre de 2008 y diciembre de 2009. MÉTODOS: Se realizó un estudio descriptivo, retrospectivo para determinar el comportamiento de la parasitosis intestinal en los niños del sector y su relación con algunos factores ambientales, para lo cual se utilizó una encuesta realizada por la autora, con la finalidad de obtener la información relacionada con las diferentes variables a estudiar. RESULTADOS: Fueron atendidos 56 pacientes, 51,7 % representó al sexo masculino, este último fue el más parasitado con un 42,7 %, predominaron las edades comprendidas entre 1-4 años con 39,2 %, la disposición inadecuada de excretas estuvo presente en un 86,6 %, así como la presencia de vectores en un 94,6 %, y 26 pacientes consumían agua no tratada (57,8 %. CONCLUSIONES: Existió una elevada presencia de la enfermedad, el sexo masculino fue el más afectado; sin embargo no mostró diferencias significativas con el otro sexo. Predominó el grupo etario de 1-4 años. El alto porcentaje obtenido en los factores ambientales estudiados, mostró que fueron importantes en el comienzo, transmisión y propagación de la parasitosis. Se recomendó efectuar programas de intervención comunitaria que impidan o limiten la aparición de estas enfermedades.INTRODUCTION: The intestinal parasitism together with other transmissible and infectious disease is the reason by which many patients come to popular consulting rooms in the Bolivarian

  18. Prevalencia de genotipos del virus del papiloma humano de alto riesgo no vacunables dentro del programa de Detección Precoz de Cáncer de Cérvix en Cantabria

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    María Paz-Zulueta

    2016-06-01

    Conclusiones: Atendiendo al alto porcentaje de VPH de alto riesgo oncogénico no vacunable, habría que replantear la estrategia de prevención en la población, que podría tener una falsa sensación de protección.

  19. Evaluación de la exposición a selenio en Los Altos de Jalisco, México Evaluation of the exposure to selenium in Los Altos de Jalisco, México

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    Roberto Hurtado-Jiménez

    2007-08-01

    Full Text Available OBJETIVO: Evaluar la exposición a selenio (Se vía agua potable en los habitantes de Los Altos de Jalisco. MATERIAL Y MÉTODOS: Se determinó la concentración de Se en 125 pozos y se estimaron los niveles de exposición a Se en bebés, niños y adultos. RESULTADOS: La dosis de exposición y la ingestión de Se vía agua potable variaron en los siguientes rangos: a bebés: 1.3-6.7 µg/kg/d y 12.6-67.2 µg/d; b niños: 0.8-4.5 µg/kg/d y 16.8-89.6 µg/d; c adultos: 0.6-3.0 µg/kg/d y 33.6-179.2 µg/d. CONCLUSIONES: En este caso, la exposición a Se representa un riesgo potencial para la salud de la población, ya que en la mayoría de los casos es mayor que la recomendada por organismos internacionales de salud. Sin embargo, no es tan alta como para esperar la ocurrencia de selenosis.OBJECTIVE: To evaluate the exposure to selenium in drinking water in Los Altos de Jalisco (Jalisco State Heights. MATERIALS AND METHODS: The concentration of selenium was determined in 125 water wells, and the exposure doses to selenium were estimated for babies, children and adults. RESULTS: The estimated values of the exposure doses to selenium and total intake of selenium were in the following ranges, respectively: (a babies: 1.3-6.7 µg/kg/d and 12.6-67.2 µg/d; (b children: 0.8-4.5 µg/kg/d and 16.8-89.6 µg/d, (c adults: 0.6-3.0 µg/kg/d and 33.6-179.2 µg/d. CONCLUSIONS: The estimated exposure levels to selenium were higher than those recommended as optimum by international health organizations, representing a potential health risk. Nevertheless, estimated values are not high enough to produce selenosis.

  20. Tobacco planters and collectors in the Alto Paraná colonization of Misiones (1930-1946 Tabacaleros y acopiadores en la colonización del Alto Paraná Misionero (1930-1946

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    María Cecilia Gallero

    2011-01-01

    Full Text Available During the settler expansion between the decades 1920-1930 in the Alto Paraná of Misiones, the tobacco was for German-Brazilian settlers a product to obtain monetary incomes and for their own consum. The aim of this paper is to analyze the link between producers and collectors of tobacco, trying to identify the conflicting elements of this relationship (disputes over the classification and the product price. The heuristic work focused on Johann Company, the company's largest collectors of Puerto Rico Colony and the only one that keeps the records since its beginings (1929. The product their collected the most time was tobacco (1929-1985, and in descending order of importance their also collected tung, cassava starch and lard. Throughout the book collection of tobacco sales it is showed both sides of the production of tobacco: tobacco producers and collectors. This information has been enriched by interviews with key informants.Durante la expansión colonizadora de las décadas de 1920-1930 en el Alto Paraná Misionero, el tabaco fue para los colonos alemanes-brasileños un cultivo destinado a la obtención de ingresos monetarios y bienes de consumo. El objetivo de este trabajo es analizar el vínculo entre productores y acopiadores de tabaco, tratando de identificar los elementos conflictivos de esta relación (disputas por la clasificación y el precio del producto. El trabajo heurístico se focalizó en la Compañía Johann, la empresa acopiadora más grande de la colonia Puerto Rico y la única que mantiene los registros desde su creación (1929. El producto que acopió por más tiempo fue el tabaco (1929-1985, y en orden de importancia decreciente también acopiaron tung, almidón de mandioca y grasa de cerdo. A través de los libros de acopio y de venta de tabaco enfardelado se da vida a las dos caras de la producción del tabaco: los productores tabacaleros y los acopiadores. Dicha información ha sido enriquecida con entrevistas a

  1. Sigizmund Dominikovič Kržižanovski: Kvadraturin / S ruskog preveo Petar Karavlah

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    Petar Karavlah

    2011-12-01

    Full Text Available Izvana se začulo kucanje na vrata: jednom. Stanka. I onda malo glasnije i koščatije: dva.Sutulin je, ne podižući se s kreveta, naučenom kretnjom protegnuo nogu prema kucanju, podbočio palac ispod kvake i upro. Vrata su se širom otvorila. Na pragu je, glavom dodirujući dovratnik, stajao visok i pod svjetlom sumraka siv čovjek. Sutulin nije uspio ni spustiti noge s kreveta, a posjetitelj je već zakoračio unutra, tiho pritvorio vrata i, okrznuvši aktovkom koja mu je visjela iz gotovo majmunski dugačke ruke prvo jedan, a zatim i drugi zid, rekao: “Kutija šibica, ni manje ni više.““Što?““Mislim na vašu sobu: kao kutija šibica. Koliko tu ima?““Osam kvadrata i nešto sitno.““Eto ga. Dopuštate?“Sutulin nije uspio ni zaustiti, a posjetitelj je već sjedio na rubu kreveta i brzinski otvorio pretrpanu aktovku. Nastavio je, spustivši glas gotovo do šapta: “Došao sam poslom. Vidite, ja, to jest, mi, radimo, kako da to kažem, neku vrstu eksperimenta. Za sada potajno. Neću vam lagati: za nas je zainteresirana jedna istaknuta inozemna tvrtka. Želite upaliti svjetlo? Nema potrebe: samo par minuta ću. Znači, otkrili smo – iako je to tajna – sredstvo za proširivanje prostorija.“

  2. Eesti keele evidentsiaalsussüsteem mõne teise keele taustal. Semantika / Petar Kehayov

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    Kehayov, Petar

    2004-01-01

    Eesti keele evidentsiaalsussüsteem võrrelduna balti, balkani, albaania ja türgi keeltega funktsionaalsest küljest: evidentsiaalsussüsteemide suhetest lähedalseisvate verbikategooriatega ning nende semantilis-pragmaatilistest funktsioonidest

  3. Evidencias paleoclimáticas en asentamientos del Alto Piura durante del período Intermedio Temprano

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    1993-01-01

    Full Text Available EVIDENCES PALEOCLIMATIQUES SUR DES SITES DU HAUT PIURA AU COURS DE LA PREMIERE PERIODE INTERMEDIAIRE. Ce travail présente les évidences géomorphologiques observées dans les fouilles archéologiques de Vicús, Haut Piura (1987-1990. Il s’agit, en général, d’altérations causées probablement par des pluies d’intensités diverses qui font penser que l’humidité était plus importante qu’aujourd’hui. Trois événements d’importance sont à détacher : le plus ancien, probablement du 4ème siècle ap. J.C., provoque des dommages importants dans l’architecture et anticipe des changements culturels significatifs qui débouchent sur l’introduction de l’architecture en briques et les éléments de style mochica 2 le suivant a des effets similaires, et même plus percutants et précède une diminution notable des évidences dans l’occupation de la zone. Ensuite, il n’y a pas d’évidences claires de présence mochica. Certains indices permettent de le situer au 6ème siècle ap. J.C. 3 Le troisième est plus récent et précède une occupation Chimú-Inca. Se presenta las evidencias geomorfológicas observadas en las excavaciones arqueológicas llevadas a cabo en Vicús, Alto Piura (1987-1990. En su mayoría se trata de alteraciones probablemente causadas por precipitaciones de diferentes intensidades que hacen pensar en una humedad probablemente algo mayor que en la actualidad. Destacan tres eventos de mayor impacto: 1 El más temprano, probablemente del cuarto siglo d.C., causa daños importantes en la arquitectura y antecede a cambios culturales significativos que llevan a la introducción de la arquitectura de adobes y elementos del estilo Mochica 2 el siguiente tiene efectos similares o aún más impactantes y antecede a una disminución notable de evidencias de ocupación de la zona después de este evento ya no hay evidencias claras de presencia mochica hay algunos indicios que permiten ubicarlo en el sexto siglo d.C. 3 El

  4. Simwe model application on susceptibility analysis to linear erosion: a case study in Alto Douro wine region.

    Science.gov (United States)

    Fernandes, Joana; Bateira, Carlos; Soares, Laura; Faria, Ana; Moura, Rui; Gonçalves, José

    2016-04-01

    The wine production in Alto Douro Wine Region - one of the world's oldest regulated and demarcated wine region - is based on a slope system organized in agricultural terraces once supported exclusively by dry stone walls. It has been undergoing the necessary changes for the introduction of technological innovations partially associated to the mechanization of vineyards work. In this sense, different forms of terrain framing have been implemented, namely the substitution of stone walls by earth embankments. This evolution raises a group of problems related to the hydric soil erosion and landscape preservation, since Alto Douro Wine Region is classified as UNESCO World Heritage Site since 2001. The study area is mostly occupied by vineyards planted in the agriculture terraces without continuous vegetation, the flow proceeds superficially influenced by the weak infiltration capacity and hydraulic conductivity. So, because of this conditioning factor the erosive features present non-significant depth, and the length thereof is limited essentially by the slope of the land, where was registered 64 gullies and 78 rills This paper focuses on the evaluation of susceptibility to linear erosion, through the application of SIMWE (SIMulated Water Erosion), (Mitas and Mitasova, 1998), using a digital elevation model, with pixel of one square meter of spatial resolution, created through detail aerial photographs, (side pixel of 50 cm), submitted to automatic stereo-correlation procedures in Agisoft PhotoScan software. The results provided by the model are compared with hydrological characteristics of the soil, (infiltration capacity, and hydraulic conductivity), soil texture, and soil structure parameters (identified by electrical resistivity measurement) where obtained from field monitoring. This approach demonstrates an association between the spatial distribution of erosive features with high values of soil saturation, and reduced water discharge (10-110 cm3/s), that are

  5. Chemical and mineralogical characterization of elbaites from the Alto Quixaba pegmatite, Seridó province, NE Brazil

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    Ana C.M. Ferreira

    2005-12-01

    Full Text Available The Alto Quixaba pegmatite, Seridó region, northeastern Brazil, is a 60º/80ºSW-trending subvertical dike discordantly intruded into biotite schists of the Upper Neoproterozoic Seridó Formation. It has three distinct mineralogical and textural zones, besides a replacement body that cuts the pegmatite at its central portion and in which occur, among other gem minerals, colored elbaites. Elbaites usually occur as prismatic crystals, elongate according to the c-axis, with rounded faces and striations parallel to this axis. Optically, crystals are uniaxial negative with strong pleochroism; refractive index extraordinary axis = 1.619-1.622 and ordinary axis = 1.639-1.643, birefringence between 0.019 and 0.021, average relative density of 3.07, and the following unit cell parameters: ao = 15.845 Å, co = 7.085 Å and V = 1540.476 Å. There is alkali deficiency in the X site of 12-17%. The elbaites are relatively enriched in MnO (1.69 to 2.87% and ZnO (up to 2.98%.O pegmatito Alto Quixaba na região do Seridó, nordeste do Brasil, é um corpo subvertical de direção 60°/80°SW intrudindo discordante biotita xistos da Formação Seridó. Apresenta três zonas distintas em termos de mineralogia e textura, al��m de uma zona de alteração em forma de dique na qual ocorre, entre outros minerais-gema, elbaítas coloridas. As elbaítas ocorrem como cristais prismáticos alongados de acordo com o eixo C, com faces arredondadas e estrias paralelas a esse eixo. Os cristais são uniaxiais negativos e apresentam forte pleocroísmo; índices de refração nE = 1,619-1,622 e nO = 1.639-1.643, birrefrigência entre 0,019 e 0,021, densidade relativa de 3,07, e os parâmetros seguintes da célula unitária: ao = 15,845 Å, co = 7,085 Å e V = 1540,476 Å. O sítio X apresenta deficiência em álcalis entre 12 e 17%. As elbaítas são relativamente ricas em MnO (1,69 a 2,87% e ZnO (até 2,98%.

  6. Reactividad y propiedades mecánicas de escoria de alto horno activada por álcalis

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    Escalante-García, J. I.

    2002-10-01

    Full Text Available Investigations were carried out to characterize the reactivity and mechanical properties in blast furnace slag pastes activated by 5 alkali systems such as NaOH, waterglass and combinations of Na2CO3, Na2SO4 y Ca(OH2 in concentrations of 5%. Cubes of 5cm were prepared and cured under water for up to 120 days at 20 and 60°C. The highest compressive strengths were noted for the waterglass activation, followed by one of the combination of 3 compounds, while NaOH activation resulted in the lowest strengths. Increased temperatures favored the strength for the waterglass activation, outperforming those of the Portland cement paste used as control at all times, whereas it had a negative effect for all other activations. The reactivity of the systems, as obtained by measurements of non evaporable water and selective chemical dissolution, indicated that the slag is more reactive under the NaOH activation. Scanning electron microscopy by means of backscattered electrons confirmed the different reactivities and the mechanical properties observed.

    Se realizaron estudios de caracterización de reactividad y propiedades mecánicas en pastas de escoria de alto horno activada por 5 sistemas alcalinos como NaOH, vidrio soluble y combinaciones de Na2CO3, Na2SO4 y Ca(OH2 en concentraciones de 5%. Se prepararon cubos de 5cm por lado y se curaron durante 120 días a 20 y 60°C bajo agua. Los valores mas altos de resistencia mecánica fueron registrados por el sistema de escoria activada con vidrio soluble, seguido por una de las combinaciones de 3 reactivos químicos, mientras que el desarrollo de propiedades mecánicas fue más pobre con la activación por NaOH. El aumento en la temperatura de curado favoreció la resistencia a la compresión de escoria con vidrio soluble, superando a la del cemento Portland a todos los tiempos de curado; para los otros sistemas el incremento de la temperatura de curado resultó perjudicial. En contraste con las

  7. Nuevo modelo matemático para la distribución de carga en el horno alto

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    Jiménez, J.

    1998-05-01

    Full Text Available A mathematical model for burden distribution in the blast furnace, has been developed. A set of operational variables related with the charging system (Paul Wurth plus other parameters related with the burden itself, such as ore and coke repose angles, weights discharged and the effect of the uprising gas, have been taken into account. These data are processed by modern computer tools. As a result, the burden distribution inside the blast furnace is obtained. Every time that a charge is added to the blast furnace, the model updates the burden distribution. The approach employed is based on considering each burden layer described by a set of interrelated polynomials. It has been tested comparing its results with burden layers obtained in a physical model of the blast furnace (scale 1/10. After installation in Aceralia blast furnace B control computers, the model is currently being employed as a tool for process control.

    El modelo matemático desarrollado describe la distribución de carga en el tragante de un horno alto. Se ha empleado un conjunto de variables operacionales relacionadas con el sistema de carga (Paul Wurth, junto con otras obtenidas de la carga, tales como el peso descargado, los ángulos de reposo de los materiales y el efecto del gas al atravesar el horno. Estos datos se procesan mediante herramientas informáticas. Como resultado, se obtiene la distribución de carga en el horno. Cada vez que se introduce una carga, el modelo actualiza la distribución. La aproximación empleada considera el perfil de cada capa de carga, el cual está descrito por un conjunto de polinomios interrelacionados. Los resultados se comparan con la distribución obtenida en un modelo físico del horno (escala 1/10. Tras su instalación en los ordenadores de proceso del horno alto B de Aceralia, el modelo se emplea actualmente para el control del mismo.

  8. Linguagem de programação JULIA: uma alternativa open source e de alto desempenho ao MATLAB

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    João Marcello Pereira

    2017-06-01

    Full Text Available O MATLAB® é um dos principais softwares utilizados nos cursos de ciências exatas e de engenharia para o ensino de programação numérica e pesquisa científica, em função de sua sintaxe de alto nível e dos diversos toolboxes do seu amigável ambiente de programação. Apesar das muitas vantagens, é um software proprietário que apresenta um alto custo de aquisição para as instituições de ensino e uso individual. Além disso, possui código fonte fechado e os programas nativos “.m” não são plenamente compatíveis em outros ambientes de programação com suporte a esse formato de arquivo. Embora existam softwares livres e open source com relativa semelhança de IDE (Integrated Development Environment ou Ambiente de Desenvolvimento Integrado e sintaxe de código, muitos desses softwares apresentam baixo desempenho computacional em relação ao MATLAB®. Dessa forma, o objetivo no presente trabalho é apresentar a linguagem de programação Julia, como alternativa ao MATLAB®, no ensino de programação numérica e simbólica, bem como de pesquisa científica. Neste trabalho são comparadas as características das duas linguagens de programação, sendo apresentado um benchmark entre as linguagens em que se avaliam o tempo de execução e os resultados dos cálculos. Para isso, foram implementados em JULIA e em MATLAB® os algoritmos Série de Fibonacci Recursiva e Gráfico 2D dos polinômios de Berstein e, ainda, utilizadas as funções nativas de cálculo simbólico, algébrico e equação diferencial numérica Runge-Kutta 45.

  9. Crecimiento del maíz en vertisoles con alto aluminio en la Baixada Maranhense pre-Amazonia, Brasil.

    Directory of Open Access Journals (Sweden)

    Alessandro Costa-da Silva

    2014-07-01

    Full Text Available El objetivo de este trabajo fue evaluar el crecimiento del maíz en suelos con alto contenido de aluminio. Se midió el efecto del Al3+ en raíces y la cantidad de materia seca (raíz, hoja y tallo de maíz. Se efectuó la caracterización físico-química de cuatro muestras de suelo con alto aluminio colectadas del horizonte Ap, en tres municipios de la región conocida como Baixada Maranhense (Pre-Amazonia, Brasil: Santa Rita (SR, Arari (AR y Vitoria do Mearim (VM y un testigo colectado en el municipio de São Luís, Área del Núcleo de Tecnología Rural (T. El estudio, ejecutado en 2009, se llevó a cabo en invernadero y se utilizó 2 dm3 de suelo por maceta. Asimismo las muestras fueron divididas en muestras con y sin fertilización. La variación en la longitud de la raíz y de materia seca de las hojas difirió significativamente entre tratados con y sin fertilizante, excepto en la muestra de la localidad T. La producción de materia seca de raíz, tallo y hoja fue mayor en todos los suelos cuando se fertilizó. El suelo testigo también superó a todos los demás en cuanto a producción de materia seca en la raíz, posiblemente como resultado de una menor cantidad de Al3+ (1,2 cmolc/dm3 en comparación con los suelos SR, AR y VM (6,8; 8,0 y 7,0 cmolc/dm3 respectivamente. Se concluye la fertilización reduce el efecto detrimental del aluminio en la producción de maíz en la Baixada Maranhense.

  10. Efecto de un programa de estiramientos activos en jugadoras de fútbol sala de alto rendimiento

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    Francisco Ayala

    2010-01-01

    Full Text Available El propósito de este estudio fue determinar la progresión de la flexibilidad isquiosural a través del rango de movimiento (ROM de la flexión de cadera antes (línea base de la flexión de cadera, duración 6 semanas, durante (efecto de un programa de estiramientos, duración 8 semanas y después (mantenimiento de la flexibilidad, duración 4 semanas de un programa de estiramientos activos de 8 semanas en jugadoras de alto rendimiento de fútbol sala. Material y método: 10 jugadoras de fútbol sala de alto rendimiento adultas jóvenes completaron este estudio. Un diseño longitudinal, temporal, ininterrumpido de medidas repetidas fue utilizado. Todas las jugadoras llevaron a cabo un programa de estiramientos de 8 semanas. El test unilateral de elevación de la pierna recta fue empleado para evaluar el ROM de la flexión de cadera a las 0, 2, 4 y 6 semanas antes del programa de estiramientos, durante el programa de estiramientos, semanas 2, 4, 6 y 8; y a las 2 y 4 semanas después del cese del programa de estiramientos. Resultados y conclusiones: el análisis de la fase inicial reveló que la línea base del ROM de la flexión de cadera tenía una tendencia irregular, con valores máximos de la flexibilidad isquiosural tanto positivos como negativos. El programa de estiramientos activos de 8 semanas aumentó el ROM de la flexión de cadera un 25,96±8,76%. Cuatro semanas después del cese del programa de estiramientos, el ROM de la flexión de cadera mostró un descenso significativo del 7,9%.

  11. Centro astronómico de Calar-Alto Almería – España

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    Margarit, Salvador

    1980-08-01

    Full Text Available The Basic Agreement of Cooperation in Scientific Research and Technological development signed by the Spanish and West German governments in 1970, served as a framework for the agreement signed in 1972 by the National Astronomical Commission and the Max-Planck Society, for the setting up of the «Spanish-German Astronomical Centre». Construction work was started in 1973 on the Calar-Alto (2,168 m, the highest point in the Sierra de los Filabres in the province of Almería. At present the last of the domed buildings, which is intented to accommodate a 3.5 m diameter Telescope and should go into operation in 1983, is at the completion stage. By this date all work will have been completed, with four domed buildings for telescopes of different sizes and the buildings for laboratory, living quarters, services and workshops needed for the use of the scientific instruments. The 1.52 m diameter National Astronomical Observatory telescope has been installed in a separate building beside the infrastructure of the Spanish-German Astronomical Centre.

    El Convenio Básico de Cooperación en la Investigación Científica y en el Desarrollo tecnológico suscrito entre los gobiernos de España y de la República Federal de Alemania en 1970, sirvió de marco para el acuerdo firmado en 1972 entre la Comisión Nacional de Astronomía y la Sociedad Max-Planck, para el establecimiento del «Centro Astronómico» Hispano-Alemán. En 1973 se iniciaron los trabajos de Obras en Calar-Alto (2.168 m cota máxima de la Sierra de los Filabres en la provincia de Almena. Actualmente se halla en fase de terminación el último de los edificios de Cúpula destinado a albergar un Telescopio de 3,5 m de diámetro y cuya puesta en servicio se prevé en 1983. Para entonces quedará culminada la realización completa con cuatro edificios de Cúpula para telescopios de diferentes tamaños y las edificaciones destinadas a laboratorio, residencia, viviendas, servicios y

  12. Aplicabilidade do Brums: estados de humor em atletas de voleibol e tênis no alto rendimento

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    Tatiana Marcela Rotta

    2014-12-01

    Full Text Available Introdução: Os estados de humor são indicadores que auxiliam sobremaneira o rendimento e a prevenção da saúde do atleta. Objetivo: Analisar a aplicabilidade do instrumento BRUMS na avaliação do perfil de estados de humor em atletas de alto rendimento do sexo masculino, de voleibol n=59 e tênis n=69. Métodos: comparar as variáveis independentes: modalidade esportiva (voleibol e tênis; tempo de prática no alto rendimento (até 2 anos; mais de 2 anos e categorias de idade (jovens e adultos com as variáveis dependente do perfil de humor (tensão, depressão, raiva, vigor, fadiga e confusão mental. O estudo causal-comparativo, utilizou, para coleta de dados, o instrumento BRUMS, validado no Brasil, com participação das autoras desse estudo. Resultados: Ao executar a MANOVA, foram verificadas diferenças entre as modalidades (F=4,289/ p=0,001; Hotellings's Trace = 0,216 e tempo de prática (F=5,845/ p<0,001; Hotelling's Trace = 0,295 no vigor. A modalidade versus tempo de prática apresentou significância na interação das duas variáveis (p=0,003, em torno de 7% da variância. Também na variável tensão p=0,05 (voleibol vs. tempo de prática, na variável raiva p=0,001 (voleibol vs. categoria de idade. No tênis, a depressão p=0,001, raiva p=0,04 e confusão mental p< 0,02 com médias maiores em adultos e mais experientes. Conclusão: A modalidade foi responsável por 11% da alteração no perfil de humor (p=0,001.

  13. Armonización entre proceso de aprendizaje y práctica deportiva en universitarios deportistas de alto nivel

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    Pedro R. Álvarez Pérez

    2012-01-01

    Full Text Available Este trabajo se ha centrado en el análisis de las dificultadesque los estudiantes universitarios deportistas de alto nivel encuentran para conciliar su proceso formativo con la práctica deportiva de alta competición. Sin una ayuda adecuada para gestionar la alternancia de esta doble actividad, muchos de estos estudiantes pueden verse abocados a situaciones de estrés, fracaso oabandono de los estudios o del deporte. Por eso, el objetivo de la investigación se orientó al diagnóstico de lascondiciones bajo las cuales se lleva a cabo el proceso de aprendizaje de estos estudiantes deportistas y la evaluación de las necesidades que tienen para compaginar el proceso formativo con la práctica deportiva. Se siguió un método descriptivo y exploratorio, empleándose diferentes estrategias de corte cualitativo: una entrevista en profundidad con los 16 estudiantes deportistas de alto nivel reconocidos por el Consejo Superior de Deportes y matriculados en diversas titulaciones de la Universidad de La Laguna durante el curso 2009-2010 y un grupo de discusión con 8 informantes críticos cuya actividad profesional estaba vinculada a la formación y la práctica deportiva. Después del proceso de análisis de contenido,esencialización y categorización de las proposiciones de respuesta ofrecidas por los participantes, los resultados pusieron de manifiesto que son diversas las variables que condicionan el desarrollo paralelo de estas dos actividades (tiempo, motivación, exigencias formativas, etc.. Del estudio se deriva la necesidad de tener en cuenta la realidad personal de estos estudiantes, introduciendo medidas de apoyo y adaptando la enseñanza a su situación y a sus necesidades específicas para el desarrollo en paralelo de la actividad deportiva y académica.

  14. Demographic, health services and socio-economic factors associated with pulmonary tuberculosis mortality in Los Altos Region of Chiapas, Mexico.

    Science.gov (United States)

    Nájera-Ortiz, J C; Sánchez-Pérez, H J; Ochoa-Díaz, H; Arana-Cedeño, M; Lezama, Ma Salazar; Mateo, M Martín

    2008-08-01

    Chiapas is one of the Mexican states having the highest rates of Pulmonary Tuberculosis (PTB), due to the numerous factors impeding its management and control (poverty, poor housing and nutrition, shortage of health resources, among others). To analyse the PTB mortality of a cohort of patients in Los Altos Region of Chiapas, who had been diagnosed with PTB from January 1, 1998 to December 31, 2002; and, to identify demographic, socioeconomic and health services utilization factors, associated with death from PTB. Analysis of a cohort of patients aged over 14 years diagnosed with PTB in the above mentioned period (n = 431) in Los Altos region of Chiapas. The records of the Tuberculosis Programme were reviewed, and patients were located through a search attempting to locate them in their homes. Those found alive were interviewed and asked to provide sputum samples. In the case of deceased patients, a verbal autopsy was obtained from a member of their family. The records of the PTB Programme in the area were incomplete and erroneous in many cases. The results of the home follow-up visits were: 208 (48%) patients located alive, five of whom were still PTB positive (three with multi-drug resistance); 145 (34%) could not be located and 78 (18%) had already died. Apparently, in at least 40 cases, the deaths were associated with PTB. Of these forty, 33 (83%) died without having received any medical care. The factors associated with dying from PTB were: 45 and over years of age (OR = 1.3; 95% CI = 0.98-1.3), 0-3 schooling years (OR = 3.3; 95% CI = 1.1-9.6), engaged in agriculture (OR = 2.2; 95% CI = 1.1-4.4), not living in main villages of their municipality (OR = 1.2; 95% CI = 1.0-1.3), living in a rural community (OR = 2.7; 95% CI = 1.1-6.8), not having been treated in DOTS (OR = 1.2; 95% CI = 1.0-1.3) and having defaulted from treatment (OR = 11.5; 95% CI = 5.3-24.8). The high rate of mortality due to PTB observed constitutes a serious public health problem deserving

  15. OBTENÇÃO DE BARRAS DE CEREAIS DE CAJU AMEIXA COM ALTO TEOR DE FIBRAS

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    LUíSA HELENA ELLERY MOUR�O

    2010-03-01

    Full Text Available

    As barras de cereais vêm apresentando crescimento constante junto ao público consumidor. Considerando o crescimento do segmento de barras de cereais no setor de alimentos este trabalho teve como objetivos desenvolver barras de cereais de caju ameixa com alto teor de fi bras utilizando ingredientes funcionais e matéria-prima regional; inovar no uso de ingredientes não utilizados nas formulações convencionais; realizar análises físicas, físicoquímicas e químicas e avaliar as propriedades nutricionais. Formulou-se dois tipos de barras, (F1 e (F2 a partir de uma formulação básica (FB. A FB foi processada utilizando-se aveia, fl ocos de arroz, leite em pó desnatado, açúcar mascavo, glucose de milho, gordura vegetal hidrogenada, canela, lecitina de soja e fl ocos de milho. As formulações F1 e F2 diferiram da FB nas concentrações dos ingredientes, na adição de linhaça, de caju ameixa, de castanha de caju, na substituição da gordura vegetal hidrogenada por óleo de canola e na retirada dos fl ocos de milho. A FB resultou 94,39 kcal e F1 e F2 em 95,69 kcal e 101,06 kcal respectivamente em 25g utilizando os coefi cientes de ATWATER. A modifi - cação dos ingredientes provocou aumento signifi cativo no teor de fi bra alimentar tornando as barras F1 e F2 produtos com alto teor de fi bra alimentar (10,58g e 12,69g/100g, respectivamente. Conclui-se que as barras de cereais F1 e F2 podem ser indicadas para indivíduos com constipação intestinal, dislipidemias e sobrepeso. Além disso, ambas poderiam ser enquadradas no conceito de alimento funcional, devido ao fato de conterem um maior teor de fi bras dietéticas que contribuem para a manutenção da boa saúde.

  16. Relación entre factores micro- estructurales e impacto repetido en aleaciones de alto cromo para bolas de molino.

    Directory of Open Access Journals (Sweden)

    E. Albertin

    2008-01-01

    Full Text Available Las aleaciones de alto cromo son empleadas para la fabricación de bolas de molino en industrias de procesamiento de minerales. Los usuarios y fabricantes requieren lograr mejores resultados técnicos-económicos en sus aplicaciones, por lo que necesitan aumentar los conocimientos relacionados con los aspectos estructurales de estos materiales. En este trabajo se realiza una investigación con vistas a establecer relaciones entre la estructura de las aleaciones y su comportamiento ante el impacto repetido que es un fenómeno característico en estos procesos. Se funden bolas con varias aleaciones hipo eutécticas, eutécticas, e hipereutécticas; se prueban en un equipo que simula el impacto repetido. Los resultados permiten comprobar los buenos resultados de aleaciones hipo eutécticas con relaciones de Cr/C altas y a su vez altos contenidos de Cr y de aleaciones eutécticas para menores relaciones de Cr/C y menores contenidos de Cr, en ambos casos los carburos eutécticos son de forma simétrica, regulares y no forman redes continuas de carburos asimétricos bordeando los granos, que presentan peores comportamiento en el impacto repetido y que son el caso de las hipoeutécticas con bajas relaciones Cr/C y las hipereutécticas donde aparecen también grandes carburos primarios.High Chromium alloys are used to manufacture grinding balls for the Industry of Construction Materials. Customers and users need to improve their knowledge about the relationships between microstructure and the parts damage in these alloys to obtain better technical-economics results. In this paper the results of a research to obtain different microstructures of eutectics, hipoeutectics and hipereutectics alloys are presented, searching for the lesser damage in these alloys. These alloys are tested in a repeated impact testing machine that simulate its mechanical behaviour .The results show a good behaviour for hipoeutectic alloys with high relations of Cr/C and high

  17. Selection of sweet potato clones for the region Alto Vale do Jequitinhonha Seleção de clones de batata-doce para a região do Alto Vale do Jequitinhonha

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    Valter C de Andrade Júnior

    2009-09-01

    Full Text Available An experiment was carried out from December 2005 to July 2006, in the Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM, in Diamantina, Minas Gerais State, Brazil, aiming at selecting sweet potato clones for the Alto Vale do Jequitinhonha. We evaluated nine clones from the UFVJM germplasm bank, using cultivars Brazlândia Branca, Brazlândia Roxa, and Princesa as controls. The experimental design was blocks at random, with four replications. Plants were harvested seven months after transplanting. We assessed the fresh mass yield of vines and roots, as well as root shape and resistance to soil insects. Genotypes did not differ from each other for the fresh mass yield of vines (ranging from 3.81 to 11.76 t ha-1. The total yield of roots ranged from 22.0 to 45.4 t ha-1 and clones BD-06, BD-113-TO, BD-15, BD-38, BD-25, BD-61, and cultivar Princesa had statistically the highest figures. However, only clone BD-06 significantly overcame the control cultivars Brazlândia Branca and Brazlândia Roxa. Clone BD-06 had also the highest commercial yield of roots (38.58 t ha-1, statically similar to most of the other clones and cultivar Princesa (25.87 t ha-1, but superior to cultivars Brazlândia Branca and Brazlândia Roxa. Most of the clones tested, including clone BD-06, produced good shaped roots and were resistant to soil insects. Considering our results, clone BD-06 stood out as a good option for growing sweet potato in the Upper Valley of Jequitinhonha.Com o objetivo de selecionar clones de batata-doce para a região do alto Vale do Jequitinhonha, conduziu-se um experimento de dezembro de 2005 a julho de 2006, no CampusJK da Universidade Federal dos Vales do Jequitinhonha e Mucuri, UFVJM, município de Diamantina-MG. Foram avaliados nove clones de batata-doce pertencentes ao banco de germoplasma da UFVJM, juntamente com as cultivares Brazlândia Branca, Brazlândia Roxa e Princesa, utilizadas como testemunhas. O delineamento experimental

  18. Aspectos Morfológicos e Relação Estrutura-Propriedades de Poliestireno de Alto Impacto

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    Grassi Vinícius G.

    2001-01-01

    Full Text Available A tenacificação da matriz vítrea de poliestireno (PS pela adição de borracha polibutadiênica, que tem como conseqüência um aumento de sua resistência ao impacto, origina um polímero com características singulares, o Poliestireno de Alto Impacto (HIPS. Durante a polimerização in situ de estireno em uma solução de borracha, ocorre a formação de cadeias graftizadas de poliestireno no polibutadieno, as quais aumentam a interação interfacial borracha-PS. O HIPS é um material com ampla aplicação na indústria de embalagens e, principalmente, em gabinetes de refrigeradores, a chamada linha branca. O objetivo deste artigo é destacar e discutir as características estruturais e morfológicas do HIPS e a implicação destas na determinação de suas propriedades. Também foram revisadas as técnicas comumente utilizadas na caracterização morfológica e estrutural do HIPS.

  19. ALTO DÉFICIT DE CONOCIMIENTOS Y PERCEPCIONES ADECUADAS SOBRE ALIMENTACIÓN EN GESTANTES DEL HOSPITAL APOYO IQUITOS, 2012

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    Irene Paima

    2012-12-01

    Full Text Available Los conocimientos y percepciones sobre los alimentos ingeridos en la gestación tienen una vital importancia porque dependiendo de una buena alimentación en esta etapa, periodo en el que se incrementan notablemente las necesidades nutritivas para el beneficio del binomio madre – feto, será de mayor ayuda para prevenir en cada nueva gestación un déficit nutricional. Se realizó un estudio de descriptivo y transversal, la población estuvo conformada por todas las gestantes que acudieron al servicio de control pre natal del Hospital Iquitos Cesar Garay García. La muestra fue de 220 gestantes se utilizó un cuestionario validado por expertos. Se evidenció un alto porcentaje de conocimiento deficiente (43% sobre alimentación y percepciones inadecuadas (65% sobre alimentación en las gestantes de nuestro estudio. Se evidencia la necesidad de mejorar  el conocimiento sobre los alimentos importantes para presentar una gestación saludable. 

  20. ALTO DÉFICIT DE CONOCIMIENTOS Y PERCEPCIONES ADECUADAS SOBRE ALIMENTACIÓN EN GESTANTES DEL HOSPITAL APOYO IQUITOS, 2012

    Directory of Open Access Journals (Sweden)

    Irene Paima

    2012-12-01

    Full Text Available Los conocimientos y percepciones sobre los alimentos ingeridos en la gestación tienen una vital importancia porque dependiendo de una buena alimentación en esta etapa, periodo en el que se incrementan notablemente las necesidades nutritivas para el beneficio del binomio madre – feto, será de mayor ayuda para prevenir en cada nueva gestación un déficit nutricional. Se realizó un estudio de descriptivo y transversal, la población estuvo conformada por todas las gestantes que acudieron al servicio de control pre natal del Hospital Iquitos Cesar Garay García. La muestra fue de 220 gestantes se utilizó un cuestionario validado por expertos. Se evidenció un alto porcentaje de conocimiento deficiente (43% sobre alimentación y percepciones inadecuadas (65% sobre alimentación en las gestantes de nuestro estudio. Se evidencia la necesidad de mejorar el conocimiento sobre los alimentos importantes para presentar una gestación saludable.

  1. Determinantes socioeconómicos del consumo en los estratos más altos de Costa Rica

    Directory of Open Access Journals (Sweden)

    Allan Hernández Chanto

    2007-03-01

    Full Text Available La literatura económica sobre los determinantes del ingreso y el consumo ha estado orientada primordialmente a la medición de la pobreza, por lo que se insiste poco en cuáles son las capacidades y potencialidades que ostentan los individuos en los estratos sociales más altos. A partir de la Encuesta de Ingresos y Gastos 2004, recogida por el Instituto Nacional de Estadística y Censos de Costa Rica, se realiza un análisis de regresión logit ordenado del consumo de los hogares, sobre potenciales variables explicativas. Los resultados muestran que la educación es un factor importante para no ocuparse en los estratos más bajos de la distribución, pero no garantiza ubicarse en la clase rica; que la concentración de la riqueza se da en la zona urbana de la Región Central, y que la estructura del ingreso de las familias más ricas está determinado fuertemente por un componente de renta.

  2. ESTRUCTURA DE LA PROPIEDAD Y EVOLUCIÓN DE CULTIVOS EN UN MUNICIPIO DEL ALTO VINALOPÓ: SAX, 1761-1850

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    Remedios Belando Carbonell

    1987-01-01

    Full Text Available El término municipal de Sax, situado en la comarca del Alto Vinalopó, al NE de la provincia de Alicante, formó parte hasta 1836 del Reino de Murcia y, por tanto, de la Corona de Castilla. Este hecho, unido a su condición de municipio de realengo, en los lindes de una zona con predominio de régimen señorial, le confieren unas características propias y diferenciadas; se trata aquí de ponerlas de manifiesto en aquellos aspectos de Geografía Agraria relativos a la propiedad del su el o y a sus aprovechamientos. Para ello se parte del estudio de estas variables en los años centrales del siglo XVIII, aprovechando una fuente de gran valo r , el Catastro de Ensenada, para posteriorment e seguir su evolución comparando con otros documentos similares de mediados del siglo XIX. Así pues, estructura de la propiedad, distribución de cultivos, su localización en relación con las condiciones edafológicas y, finalmente, las técnicas empleadas en las labores agrícolas, constituyen los puntos básicos de este trabajo.

  3. Grupo Semco y las prácticas de recursos humanos de alto compromiso, una ventaja competitiva

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    Juan Nicolás Montoya Monsalve

    2012-12-01

    Full Text Available El presente artículo de reflexión trata de determinar si las prácticas de recursos humanos orientadas a mejorar el compromiso de los empleados con la empresa reportan una identidad común y diferenciadora del resto de empresas, logrando de esta forma una ventaja competitiva. Además de la fundamentación teórica, para analizar el objetivo principal señalado se han utilizado elementos del método del caso, que ayudan a determinar nuevas variables de estudio y permiten comprobar si existen realidades empresariales que consigan alcanzar, a través de las prácticas de alto compromiso, un mejor desempeño y una mayor pertinencia con las organizaciones, y estudiar cómo lo han conseguido. En esta parte de análisis empírico, se analiza la organización Semco, una compañía brasileña que ha atraído el interés de los expertos por las innovadoras prácticas en la gestión del talento humano, su diseño organizativo y la generación de una identidad propia, como base de su ventaja competitiva.

  4. Concepciones de infancia en una escuela con altos índices de violencia escolar de estudiantes a profesores

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    Claudia Lorena Carrasco-Aguilar

    2016-01-01

    Full Text Available A través de un estudio cuasietnográfico en una escuela primaria con altos índices de intimidación de los estudiantes hacia sus profesores, se busca analizar las concepciones de infancia implícitas en los discursos de la comunidad escolar y su sentido para la validación de prácticas e interacciones escolares violentas. Para ello, se realizaron observaciones persistentes, entrevistas individuales y grupales y análisis de documentos oficiales, los que fueron analizados bajo el análisis de contenido categorial temático. Los resultados muestran cómo la Escuela activa diversos mecanismos para validar la infancia como espacio de tránsito, y coloca como referente una forma de adultocentrismo que se expresa en prácticas de control y discriminación. Se discuten los sentidos construidos acerca de la niñez y sus implicancias para la construcción de subjetividades infantiles.

  5. PERDA UNIVERSAL DE SOLOS PARA A REGIÃO DO ALTO MÉDIO SÃO FRANCISCO - MINAS GERAIS

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    Marcílio Baltazar Teixeira

    2017-12-01

    Full Text Available O principal objetivo deste trabalho foi buscar estimar a perda universal de solos em uma localidade situada na região do alto médio São Francisco, no Estado de Minas Gerais, combinando-se o uso dos Sistemas Informações Geográficas (SIG com modelo quantitativo da Equação Universal de Perdas de Solos (USLE. Neste caso esta localidade foi dividida em duas partes, e através da avaliação da degradação ambiental, estudou-se a parcela mais degradada, considerando, neste caso, a perda de vegetação nativa (cerrado como fator de distinção entre ambas as partes territoriais. Usando a ferramenta do software SPRING/INPE e o ArcGIS, estimou-se a perda de vegetação nativa ao longo dos anos de 1973/1975, 1984, 1993, 2003, 2007 e 2011 para logo em seguida determinar a localidade mais degradada (ou com menor quantidade de vegetação nativa. Após isto, estimou-se a perda universal dos solos para localidade estudada.

  6. Migración juvenil indígena y ejercicio sexual en los Altos de Chiapas.

    Directory of Open Access Journals (Sweden)

    Diana Reartes

    2017-07-01

    Full Text Available La presente nota de investigación da cuenta de los principales resultados de una investigación socioantropológica que desarrollamos en los Altos de Chiapas (2007-2012 y que tuvo como preocupación central aproximarnos a analizar las implicaciones del proceso migratorio interno y/o internacional (a Estados Unidos de jóvenes mujeres y varones tsotsiles en el ámbito de la sexualidad y la reproducción. Se documenta cómo la migración se erige como un proceso de vital importancia en la colocación de estas y estos jóvenes en situaciones y contextos que condicionan sus recursos y capacidad de gestión para prevenir embarazos e infecciones de transmisión sexual, dependiendo de su condición de género, escolaridad, experiencia y situación migratoria.

  7. Wavelength calibration with PMAS at 3.5 m Calar Alto Telescope using a tunable astro-comb

    Science.gov (United States)

    Chavez Boggio, J. M.; Fremberg, T.; Bodenmüller, D.; Sandin, C.; Zajnulina, M.; Kelz, A.; Giannone, D.; Rutowska, M.; Moralejo, B.; Roth, M. M.; Wysmolek, M.; Sayinc, H.

    2018-05-01

    On-sky tests conducted with an astro-comb using the Potsdam Multi-Aperture Spectrograph (PMAS) at the 3.5 m Calar Alto Telescope are reported. The proposed astro-comb approach is based on cascaded four-wave mixing between two lasers propagating through dispersion optimized nonlinear fibers. This approach allows for a line spacing that can be continuously tuned over a broad range (from tens of GHz to beyond 1 THz) making it suitable for calibration of low- medium- and high-resolution spectrographs. The astro-comb provides 300 calibration lines and his line-spacing is tracked with a wavemeter having 0.3 pm absolute accuracy. First, we assess the accuracy of Neon calibration by measuring the astro-comb lines with (Neon calibrated) PMAS. The results are compared with expected line positions from wavemeter measurement showing an offset of ∼5-20 pm (4%-16% of one resolution element). This might be the footprint of the accuracy limits from actual Neon calibration. Then, the astro-comb performance as a calibrator is assessed through measurements of the Ca triplet from stellar objects HD3765 and HD219538 as well as with the sky line spectrum, showing the advantage of the proposed astro-comb for wavelength calibration at any resolution.

  8. Producción y consumo de mercancías turísticas en los Altos de Chiapas

    Directory of Open Access Journals (Sweden)

    Eugenia Bayona Escat

    2015-04-01

    Full Text Available En la actualidad, los circuitos comerciales de las mercancías se han extendido a lo largo del planeta y los objetos que consideramos de facturación local se hallan insertados en un circuito comercial que se expande entre lo local y global. Sin embargo, lo característico de este proceso económico es que muchos de estos objetos se asocian a señas distintivas locales. El turismo es un contexto idóneo para analizar este tránsito de mercancías globales que se presentan con señas distintivas particulares e incitan al viajero a su compra para memorizar sus experiencias viajeras y autentificar su estancia. El texto analiza una zona turística que comercializa con la cultura indígena, la región Altos Tzotzil-Tzeltal de Chiapas (México, y examina cómo las mercancías turísticas que provienen de diversos orígenes se autentifican como locales, al mismo tiempo que indaga en las diferentes estrategias de comercialización que los productores y vendedores locales efectúan para incorporarse a la arena turística.

  9. Pesquerías globalizadas: revisitando a la comunidad marítima en el Alto Golfo de California

    Directory of Open Access Journals (Sweden)

    Gloria Ciria Valdéz-Gardea

    2010-01-01

    Full Text Available Puerto Peñasco, ubicado en el Alto Golfo de California, protagoniza las consecuencias de las transformaciones estructurales de las pesquerías en México. Esta área muestra las desarticulaciones provocadas por el crecimiento urbano y turístico que ha dejado marginada a la producción pesquera como actividad económica identitaria. El desarrollo turístico ha impactado diferencialmente a los pobladores más aún; las percepciones de estos impactos en la vida social, cultural y económica de los residentes son diversas. La antropología marítima presenta desafíos en el estudio de lo que llamo pesquerías globalizadas: espacios en transición, híbridos en donde se gestan entornos nuevos los cuales se circunscriben, se apropian y compiten por los espacios, paisajes y recursos naturales, vividos, sentidos y practicados tradicionalmente por los usuarios de los recursos: los pescadores.

  10. Formación de equipos de alto desempeño y estrategias gerenciales en proyectos de empresas publicitarias

    Directory of Open Access Journals (Sweden)

    ROSA ESTHER PALAMARY D'AGUILLO

    2012-01-01

    Full Text Available Actualmente las empresas publicitarias se ven presionadas a competir en un entorno donde productos y estrategias se asemejan cada día más debido a la globalización. El éxito de estas empresas dependerá de la práctica de la innovación en sus actividades así como del desarrollo del capital humano. El objetivo de este trabajo es determinar la relación entre formación de equipos de alto desempeño y estrategias gerenciales en proyectos de empresas publicitarias; sustentada bajo una investigación descriptiva correlacional de campo transversal, con un diseño no experimental descriptivo transeccional. Se tomó como población a las empresas ubicadas en el municipio de Maracaibo (Venezuela pertenecientes a la Federación de Agencias Publicitarias. Los resultados obtenidos sirven para otras empresas que deseen asumir este reto.

  11. “Entre propietarios y migrantes: los encuentros y desencuentros entre Colonos y Aguarunas en el alto mayo”

    Directory of Open Access Journals (Sweden)

    Kenneth E. Garces Montes

    2013-10-01

    Full Text Available La dinámica de conflictos entre colonos y nativos en el Alto Mayo, ha dado como producto continuosenfrentamientos entre caseríos de colonos y comunidades nativas colindantes, así como una seriede procesos judiciales por “usurpación de tierras”, en los cuales no se logra una ejecución efectiva dela sentencia a pesar que esta sea favorable a los nativos, debido a la distancia social que existe entrelos operadores estatales y el conflicto real. Por su parte los mecanismos de convivencia entre colonosy nativos se inician mediante el alquiler de tierras, diseñada como una fórmula temporal para quelos colonos se retiren una vez vencido el plazo del alquiler, sin embargo la ampliación de los plazosprovoca que los mismos adquieran vocación de permanencia.Una serie de actores, de primer, segundo y tercer orden interactúan alrededor de las dos dinámicasde relacionamiento mencionadas; tales como las ONGs, el Estado, organizaciones indígenas, einclusive mafias de traficantes de tierras. Ante esta realidad tan compleja conviene hacer el ejerciciode plantear propuestas de adaptabilidad (o subsistencia de las comunidades nativas, en las quese visualice la supervivencia de lo local frente a lo global en lo que a demarcación de tierras de lascomunidades nativas se refiere.

  12. Avaliação do estado nutricional e da composição corporal das crianças índias do Alto Xingu e da etnia Ikpeng Nutritional status and body composition of two South American native populations - Alto Xingu and Ikpeng

    Directory of Open Access Journals (Sweden)

    Ulysses Fagundes

    2004-12-01

    Full Text Available OBJETIVOS: Avaliar o estado nutricional e a composição corporal de crianças índias das populações alto-xinguana e Ikpeng, comparando as populações. MÉTODOS: Avaliamos 95 crianças do Alto Xingu e 69 Ikpeng com idades entre 24 e 117 meses. Obtivemos dados sobre idade, peso, estatura, pregas cutâneas, circunferência do braço e impedância bioelétrica. Calculamos escores z para peso, estatura e estimativas da composição corporal. Tendo como referência o NCHS 2000, determinamos diagnóstico de baixo peso e baixa estatura como sendo inferior a -2 escores z para os indicadores peso/idade ou índice de massa corporal/idade e estatura/idade, respectivamente. Para obesidade, o ponto de corte foi 2 escores do indicador índice de massa corporal/idade. As massas corporais magra e gordurosa foram calculadas a partir de duas equações validadas na literatura. RESULTADOS: Diagnosticamos baixa estatura em 8,4% das crianças do Alto Xingu e em 37,7% das Ikpeng (p OBJECTIVES: To assess the nutritional and body composition of two Brazilian indigenous populations by comparing their nutritional status. METHODS: 95 children from Alto Xingu and 69 from Ikpeng were evaluated, ages ranged from 24 to 117 months. The study was performed in the Xingu Indigenous Park. Data collected were: age, weight, height, skin folds, arm circumference, resistance and reactance. The z-scores were calculated and classified according to the parameters defined by the National Center for Health Statistics (NCHS 2000. Shortness was defined as length or stature below -2, underweight as body mass index below -2, and overweight as body mass index above 2. RESULTS: Among children from Alto Xingu, the prevalence of shortness was 8.4%, while among Ikpengs the prevalence was 37.7% (p < 0.001. Underweight was diagnosed in 12.5% of Ikpeng's children. Values of fat-free mass were greater for children from Alto Xingu and no case of obesity was found. CONCLUSION: In this study, Ikpeng

  13. Environmental adaptation of the source of the subbasin of Rico Stream, Monte Alto - SP, Brazil Adequação ambiental da nascente da sub-bacia do Córrego Rico, Município de Monte Alto - SP

    Directory of Open Access Journals (Sweden)

    Teresa C. T. Pissarra

    2013-04-01

    Full Text Available The aim of this study was to define the photographic patterns that represent the use and occupation of the landcover of the "spring" of the Rico Stream subbasin, located at Monte Alto, state of São Paulo (SP, Brazil, for environmental adaptation regarding the Brazilian Forest Law. The mapping was performed using remote sensing techniques and visual interpretation of the World View image, followed by the digitalization of the net of drainage and vegetation (natural and agricultural at the AutoCad software with documents and field work. The study area has 2141.53 ha and the results demonstrated that the main crop is sugarcane with 546.34 ha, followed by 251.22 ha of pastures, 191.71 ha of perennial crops, 57.31 ha of Eucalyptus and 49.52 ha of onion, confirming the advance of sugarcane culture in the region. The region has 375.04 ha of areas of permanent preservation (APPs, and of this area it was found that only 72.17 ha (19.24% has arboreal vegetation or natural forest, and 302.87 ha of these areas need to be enriched and reforested with native vegetation from the region, according to the current legislation. The data of the area enable future proposals of models for environmental adaptation to the microbasin according to the current environmental legislation.Este trabalho teve como principal objetivo definir padrões fotográficos que representem o uso e a ocupação do solo da "cabeceira" de drenagem do Córrego Rico, localizada no Município de Monte Alto, Estado de São Paulo, para fins de adequação ambiental no que tange à legislação florestal brasileira. O mapeamento foi realizado utilizando técnicas de sensoriamento remoto e interpretação visual da imagem World View, seguida da digitalização da rede de drenagem e vegetações (naturais e agrícolas no AutoCad, com auxílio de documentos e trabalho de campo. A área de estudo apresenta uma superfície de 2.141,53 ha, e os resultados permitiram constatar que a principal cultura

  14. Comportamiento de la violencia doméstica en mujeres pertenecientes al consultorio "Altos de Milagro" Behavior of the home violence in women from "Altos de Milagro" consulting room

    Directory of Open Access Journals (Sweden)

    Madeline Espinosa Morales

    2011-06-01

    Full Text Available Introducción: la violencia doméstica, específicamente contra la mujer latinoamericana, se ha convertido en los últimos años en un serio problema médico, social y cultural, que exige una urgente atención integral de salud, lo que motivó a las autoras a desarrollar la investigación. Objetivo: determinar el comportamiento de la violencia doméstica en mujeres mayores de 15 años atendidas en el consultorio Altos de Milagro, en Maracaibo, Estado Zulia, Venezuela, entre diciembre de 2008 y diciembre 2009. Métodos: se realizó un estudio descriptivo, retrospectivo para caracterizar el comportamiento de la violencia doméstica en el consultorio popular antes mencionado utilizando una encuesta elaborada por las autoras. Resultados: fueron atendidas 51 pacientes víctimas de violencia doméstica, con predominio de las edades entre 35 y 44 años (39,21 %. Resultaron ser acompañadas el 58,82 % y la totalidad de las pacientes sufrió violencia psicológica (100 %. La escolaridad primaria representó el 39,21 %, y 30 de las pacientes estudiadas pertenecen a familias grandes y extensas, con gran consumo de alcohol, para un 58,82 %. Se encontró, además, que más del 50 % de las estudiadas sufrió violencia doméstica, perteneciendo a la tercera-cuarta década de la vida, con bajo nivel intelectual. Conclusiones: predominó la violencia psicológica, las familias extensas y grandes, y en la mayor parte de estas el factor de riesgo más frecuente fue la ingesta de bebidas alcohólicas.Introduction: home violence specifically against the Latin American woman became in past years in a serious medical, social and cultural problem requiring an urgent integral health care, encouraging authors to develop present research. Objective: to determine the behavior of home violence in women aged over 15 seen in the "Altos de Milagro" consulting room in Maracaibo, Zulia State from December, 2008 to December, 2009. Methods: a retrospective and descriptive study

  15. Factores asociados a la colonización por Streptococcus del grupo B en mujeres embarazadas de Los Altos, Chiapas Factors associated with group B Streptococcus colonization in pregnant women of Los Altos, Chiapas, Mexico

    Directory of Open Access Journals (Sweden)

    Moisés Ocampo-Torres

    2000-09-01

    Full Text Available OBJETIVO: Estimar la prevalencia de colonización por Streptococcus del grupo B (SGB en mujeres embarazadas de Los Altos, Chiapas, y analizar factores asociados a la misma. MATERIAL Y MÉTODOS: Es un estudio transversal realizado de febrero a septiembre de 1999 en tres hospitales públicos de segundo nivel en San Cristóbal de las Casas, Chiapas. A 910 mujeres que acudieron para atención de parto a dichos hospitales, se les tomaron muestras (vaginal y perianal para detección de SGB por cultivo e identificación de grupo y serotipo mediante aglutinación en látex. El análisis de factores asociados a la colonización se realizó medianteji² y modelos log-lineales. RESULTADOS: La colonización por SGB fue de 8.6% (IC 95% 6.8 - 10.5. Las mujeres con mayor probabilidad de colonización fueron las de > o = 5 embarazos, residentes de municipios marginados, de ocupación diferente al hogar y con jefe/jefa de familia agrícola (26.8%, RM= 7.25, IC 95% 1.83 - 28.67. CONCLUSIONES: Es necesario que las acciones para la prevención y control de infección por SGB se dirijan principalmente a la población de mayor riesgo de colonización en el área de estudio, con el fin de disminuir la transmisión perinatal de SGB.OBJECTIVE: To estimate the prevalence and analyze the factors associated with group B Streptococcus (GBS colonization in pregnant women of Los Altos, Chiapas, Mexico. MATERIAL AND METHODS: Between February and September 1999, a cross-sectional study was conducted among 910 women who sought delivery care at three public hospitals of San Cristobal de Las Casas, Chiapas. Vaginal and perianal samples were taken for GBS detection by bacteriological culture. Identification of groups and serotypes was performed using latex agglutination. The analysis of factors associated with colonization was done using chi-squared tests and log-linear modeling. RESULTS: GBS colonization was found in 8.6% (95% CI 6.8 - 10.5 of study subjects. Women with the

  16. Condições de nutrição em crianças Kamaiurá: povo indígena do Alto Xingu, Brasil Central Nutrition status in Kamaiurá Indian children: Alto Xingu, Central Brazil

    Directory of Open Access Journals (Sweden)

    Lenise Mondini

    2007-03-01

    Full Text Available Este estudo teve por objetivo avaliar o estado nutricional, incluindo a prevalência de anemia, de crianças Kamaiurá, povo indígena do Alto Xingu, Brasil Central. Foram estudadas 112 crianças menores de dez anos de idade em 2000/2001. O perfil do crescimento infantil foi descrito segundo a distribuição dos índices altura/idade e peso/altura expressos em escore-z da população de referência do National Center of Health Statistics - NCHS. Os diagnósticos de déficit de altura e da relação peso/altura e o diagnóstico de obesidade corresponderam, respectivamente, aos valores abaixo de -2 escores-z de altura/idade e peso/altura e aos valores acima de 2 escores-z de peso/altura. O diagnóstico de anemia foi determinado a partir de concentrações de hemoglobina sérica inferiores a 11 g/dl para crianças entre seis meses e cinco anos de idade e inferiores a 11,5 g/dl para as crianças com idade entre cinco e dez anos incompletos, conforme recomendação da OMS. Aproximadamente um terço das crianças apresentou déficit de crescimento, enquanto déficit de peso/altura e obesidade não foram diagnosticados entre elas. A anemia esteve presente em mais da metade das crianças índias estudadas, 15% delas apresentando anemia grave. Há necessidade de implementação de ações que visem a melhoria das condições socioambientais, de saúde e nutrição desse povo indígena.In order to evaluate nutritional and anemic status, 112 Indian children (Kamaiurá, aged from 0 to 119.9 months, from the Alto Xingu region of central Brazil were studied in 2000/2001. The international growth reference - NCHS was used to evaluate height and weight, according to the child's age and gender. Growth deficit (stunting and low weight status (wasting were determined when height-for-age and weight-for-height indices were below _2 z scores, respectively, and obesity status when the weight-for-height index was above 2 z scores. Stunting was observed in 1/3 of the

  17. Serpentes peçonhentas e ofidismo em Cruzeiro do Sul, Alto Juruá, Estado do Acre, Brasil Venomous snakes and ophidism in Cruzeiro do Sul, Alto Juruá, State of Acre, Brazil

    Directory of Open Access Journals (Sweden)

    Paulo Sérgio Bernarde

    2012-03-01

    Full Text Available Apesar da importância dos acidentes ofídicos na Saúde Pública, são relativamente poucas as pesquisas realizadas sobre esse tema no Brasil. Devido aos poucos estudos sobre ofidismo na Amazônia e especialmente no estado do Acre, trabalhos epidemiológicos são de grande relevância. Esse estudo apresenta a lista de serpentes peçonhentas e aspectos epidemiológicos dos acidentes ofídicos em Cruzeiro do Sul, região do Alto Juruá (Acre, verificando quais gêneros de serpentes são responsáveis pelos envenenamentos e aspectos que envolvem o acidente e o atendimento hospitalar. Os dados epidemiológicos foram coligidos a partir do SINAN (Sistema de Informações de Agravos de Notificação, no setor de vigilância epidemiológica do Hospital Regional do Juruá, no município de Cruzeiro do Sul. Sete espécies de serpentes peçonhentas foram registradas nesse município: três viperídeos (Bothrops atrox, Bothriopsis bilineata e Lachesis muta e quatro elapídeos (Micrurus hemprichii, M. lemniscatus, M. remotus and M. surinamensis. Durante o período de dois anos (agosto de 2007 a julho de 2009 foram registrados 195 casos de acidentes ofídicos. Cinquenta e um por cento dos acidentes foi classificado como laquético (Lachesis, seguido pelo botrópico (Bothrops e Bothriopsis com 38% e crotálico (Crotalus com 2%. Em 9% dos casos o gênero da serpente envolvida não foi informado. A maioria dos acidentes envolveu indivíduos adultos do gênero masculino em área rural, afetados principalmente nos membros inferiores. Os casos ocorreram mais frequentemente nos meses de novembro a abril, coincidindo com os maiores níveis pluviométricos. A maioria dos acidentes foi atribuída equivocadamente à serpente L. muta, tendo sido provavelmente causados por B. atrox.Despite the importance of accidents involving snakebites, research on this theme in Brazil is relatively rare, especially in the Amazon region. Due to the poor number of studies about ophidism

  18. TÉCNICAS DE GEOPROCESSAMENTO PARA ANÁLISE MORFOMÉTRICA DA MICROBACIA DO RIBEIRÃO ALTO ÁGUA FRIA – BOFETE (SP / GEOPROCESSING TECHNIQUES TO MORPHOMETRIC ANALYSIS OF ALTO AGUA FRIA STREAM WATERSHED - BOFETE (SP

    Directory of Open Access Journals (Sweden)

    R.C. Nardini

    2016-06-01

    Full Text Available Técnicas de geoprocessamento foram realizadas para a caracterização morfométrica da microbacia do Ribeirão Alto Água Fria – Bofete (SP pelo Sistema de Informação Geográfica, visando à preservação, racionalização do seu uso e recuperação ambiental. A microbacia apresenta uma área de 4012,17 ha e está localizada entre as coordenadas geográficas: 22o 57’ 41” a 23o 02’ 42” S e 48o 11’ 29” a 48o 20’ 09” WGR.  A base cartográfica utilizada foi a carta planialtimétrica de Bofete (SP para extração das curvas de nível e hidrografia, para determinação dos índices morfométricos. Os resultados apresentaram que os baixos valores da densidade de drenagem, associados à presença de rochas permeáveis, facilitam a infiltração da água no solo, diminuindo o escoamento superficial e o risco de erosão e da degradação ambiental. Os baixos valores do fator de forma e do índice de circularidade indica que a microbacia tende a ser mais alongada com menor susceptibilidade à ocorrência de enchentes mais acentuadas. O parâmetro ambiental, coeficiente de rugosidade, permitiu classificar a microbacia para vocação com agricultura.

  19. FLORÍSTICA E ESTRUTURA EM ÁREA DE FLORESTA ESTACIONAL DECIDUAL NA REGIÃO DO ALTO URUGUAI, RS / FLORISTIC AND STRUCTURE IN AREA OF SEASONAL DECIDUOUS FOREST IN THE REGION OF THE ALTO URUGUAI, RS

    Directory of Open Access Journals (Sweden)

    F. R. Lambrecht

    2016-06-01

    Full Text Available           O trabalho teve como objetivos realizar a análise florística das estruturas horizontal e vertical em um fragmento de Floresta Estacional Decidual (FED na região do Alto Uruguai, em Frederico Westphalen, RS, Brasil. Foi realizado um censo em uma área amostral de 10.000 m², subdividida em 100 subparcelas de 10x10 m. Realizou-se a mensuração e a identificação de todos os indivíduos de espécies arbóreas com circunferência a altura do peito (CAP≥ 31,4cm. Com os dados obtidos, foram realizados cálculos de densidade (D, frequência (F, dominância (Do, índice de valor de importância (IVI, índice de valor de cobertura (IVC e a estratificação dos indivíduos. O maior número de espécies concentrou-se na família Fabaceae (10 e o maior número de indivíduos na família Meliaceae (147 ou 25,3%. Trichilia claussenii C. DC. Nectandra megapotamica (Spreng. Mez, Achatocarpus praecox Griseb. e Eugenia rostrifolia D. Legrand representaram 38,28% da densidade relativa e Holocalyx balansae Micheli, Trichilia claussenii, Nectandra megapotamica, Cordia americana (L. Gottshling & J.E.Mill., Phytolacca dioica  L., Achatocarpus praecox, e Eugenia rostrifolia representaram 50,5% da dominância relativa. Considerando a estrutura vertical, as sete espécies mais frequentes apresentaram uma maior quantidade de indivíduos no estrato médio. Conclui-se que a área florestal encontra-se em estágio intermediário de sucessão.

  20. Rb-Sr geochronology from Barro Alto Complex, Goias: metamorphism evidence of high degree and continental collision around 1300 Ma ago in Central Brazil

    International Nuclear Information System (INIS)

    Fuck, R.A.; Neves, B.B.B.; Cordani, U.G.; Kawashita, K.

    1989-01-01

    Rb-Sr geochronologic investigation carried out on rocks from the Barro Alto Complex, Goias, yielded iso chronic ages of 1266 +- 17 Ma, for felsic rocks from the granulite belt and 1330 +- 67 Ma, for gneisses belonging to the Juscelandia Sequence. Rb-Sr isotope measurements suggest that Barro Alto rocks have undergone an important metamorphic event during middle Proterozoic times, around 1300 Ma ago. During that event, volcanic and sedimentary rocks of Juscelandia Sequence, as well as the underlying gabbros-anorthosite layered complex, underwent deformation and recrystallization under amphibolite facies conditions. Deformation and metamorphism took place during the collision of two continental blocks, which resulted in a southeastward directed thrust complex, allowing the exposure of granulite slices from the middle-lower crust of the overthrusted block. (author)

  1. Perceção do estado de saúde da população idosa do Alto Minho

    OpenAIRE

    Fernandes, Fábia de Jesus Felgeuiras

    2015-01-01

    Dissertação de mestrado em Gestão das Organizações: Ramo de Gestão de Unidades de Saúde (parceria com a APNOR) apresentada na Escola Superior de Saúde do Instituto Politécnico de Viana do Castelo Este estudo teve como objetivo avaliar o estado de saúde da população idosa do Alto Minho de forma a contribuir para o planeamento em saúde e emerge do projeto “Estado de Saúde e Atividade Física da População Idosa do Alto Minho”, financiado por Fundos FEDER através do Programa Operacional Fatores...

  2. Tratamento bem-sucedido da síndrome cardiopulmonar por hantavírus com uso de hemofiltração de alto volume

    OpenAIRE

    Bugedo, Guillermo; Florez, Jorge; Ferres, Marcela; Roessler, Eric; Bruhn, Alejandro

    2016-01-01

    RESUMO A síndrome cardiopulmonar por hantavírus tem elevada taxa de mortalidade. Sugere-se que uma conexão precoce com oxigenação por membrana extracorpórea melhore os resultados. Relatamos o caso de uma paciente que apresentou síndrome cardiopulmonar por hantavírus e choque refratário, que preenchia os critérios para oxigenação por membrana extracorpórea e que teve resposta satisfatória com uso de hemofiltração contínua de alto volume. A implantação de hemofiltração contínua de alto volume, ...

  3. Predicción del riesgo individual de alto coste sanitario para la identificación de pacientes crónicos complejos

    Directory of Open Access Journals (Sweden)

    Jordi Coderch

    2014-07-01

    Conclusiones: El consumo sanitario elevado se relaciona con la morbilidad crónica compleja. Un modelo basado en la edad, la morbilidad y la utilización previa es válido para predecir el riesgo de alto consumo, y así identificar la población diana de estrategias de atención proactiva para pacientes crónicos complejos.

  4. O uso de implantes orbitários de polietileno granulado de ultra-alto peso molecular no reparo de cavidades anoftálmicas

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    João Edward Soranz Filho

    2012-08-01

    Full Text Available OBJETIVO: Alterações oculares, em especial a perda de volume nas cavidades evisceradas, promovem uma série de modificações ao paciente tanto funcional do órgão quanto psicológica e estética. Para tanto a procura de um material de baixo custo e com biocompatibilidade tem sido uma constante na literatura. Portanto, esse trabalho teve como objetivo testar experimentalmente implante de polietileno granulado de ultra-alto peso molecular, material de baixo custo, em órbitas de coelhos submetidos à evisceração cirúrgica em vários tempos experimentais, onde foram avaliados aspectos macroscópicos e microscópicose de toxicidade sistêmica do material. MÉTODOS: Para esse estudo foram utilizados coelhos Oryctolaguscuniculus submetidos à evisceração do globo ocular direito e posteriormente implantados com esfera de polietileno granulado de ultra-alto peso molecular e analisados por 15, 30, 90 e 180 dias pós-implante, com parâmetros macro, microscópios e bioquímicos. Os animais controles foram submetidos ao mesmo procedimento sem, entretanto a colocação do implante. RESULTADOS: Os resultados desse trabalho mostram que o material utilizado no implante de cavidade não apresenta alteração significativa nos parâmetros de peso e bioquímicos quando comparados ao grupo controle. O material implantado apresentou uma grande interação com o tecido do hospedeiro. CONCLUSÃO: Os resultados indicam que implante de polietileno granulado de alto peso molecular desenvolvido por uma indústria nacional tem alto potencial para se realizar testes em humanos.

  5. Brotes de rabia humana transmitida por vampiros en los municipios de Bajo y Alto Baudó, departamento del Chocó, Colombia 2004-2005

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    Jessika Valderrama

    2006-09-01

    Conclusiones. El brote de rabia humana en Bajo Baudó 2004 ha sido el de mayor magnitud reportado en Colombia. Este fue causado por vampiros, demostrando la amenaza que representa la rabia de especies silvestres para la salud pública, y la necesidad de implementar acciones para evitar su impacto en humanos. Se desconoce si existen vínculos entre este brote y el reportado en Alto Baudó seis meses después.

  6. Análisis del comportamiento de la demanda de turismo rural desde la experiencia de la comarca El Alto Palancia

    OpenAIRE

    Yagüe Perales, Rosa María; March Chordà, Isidre

    2004-01-01

    This study is intended to delve into the tastes and preferences of tourists visiting rural areas in Spain as an alternative to the traditional sun and beach holiday that dominates Spanish tourism. This paper is focused on the demand side of rural tourism; more specifically the extent to which tourists visiting a Spanish rural area. El Alto Palancia region, exhibit different behaviours depending on age, gender, incomes and educational background. The homogeneity of behaviour across several cat...

  7. Tratamento bem-sucedido da síndrome cardiopulmonar por hantavírus com uso de hemofiltração de alto volume

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    Guillermo Bugedo

    Full Text Available RESUMO A síndrome cardiopulmonar por hantavírus tem elevada taxa de mortalidade. Sugere-se que uma conexão precoce com oxigenação por membrana extracorpórea melhore os resultados. Relatamos o caso de uma paciente que apresentou síndrome cardiopulmonar por hantavírus e choque refratário, que preenchia os critérios para oxigenação por membrana extracorpórea e que teve resposta satisfatória com uso de hemofiltração contínua de alto volume. A implantação de hemofiltração contínua de alto volume, juntamente da ventilação protetora, reverteu o choque dentro de poucas horas e pode ter levado à recuperação. Em pacientes com síndrome cardiopulmonar por hantavírus, um curso rápido de hemofiltração contínua de alto volume pode ajudar a diferenciar pacientes que podem ser tratados com cuidados convencionais da unidade de terapia intensiva dos que necessitarão de terapias mais complexas, como oxigenação por membrana extracorpórea.

  8. Producción de miel e infestación con Varroa destructor de abejas africanizadas (Apis mellifera con alto y bajo comportamiento higiénico

    Directory of Open Access Journals (Sweden)

    Carlos Aurelio Medina-Flores

    2014-01-01

    Full Text Available El objetivo del estudio fue comparar la producción de miel y los niveles de Varroa destructor entre colonias de abejas africanizadas (AA ( Apis mellifera con alto y bajo comportamiento higiénico (CH en el altiplano semiárido de México. Se midió el nivel de CH a 57 colonias por congelamiento de la cría con nitrógeno líquido (N 2 . Las colonias se clasificaron en dos grupos: alto CH (> 95 % y bajo CH (0.05. Estos resultados sugieren que aparentemente el comportamiento higiénico no tiene un efecto mayor en la resistencia de las AA al crecimiento poblaci onal del ácaro. También sugieren que el comportamiento higiénico alto podría contribuir a incrementar la producción de miel en épocas del año con flujo reducido de néctar.

  9. Coal exploration in the Alto San Jorge area, Cordoba Department. Exploracion de carbones en el Ato San Jorge, Departamento de Cordoba

    Energy Technology Data Exchange (ETDEWEB)

    Ospina, L H; Oquendo, G G [Geominas Ltda, Medellin (Colombia)

    1989-01-01

    A Mining Feasibility Study in the Area of Alto San Jorge, Department of Cordoba, Colombia, was commissioned by CARBOCOL S.A. to the Consortium Geominas-NACI. An area of 800 Ka2 was explored to define surface mining possibilities within two subareas referred to as Alto San Jorge and San Pedro Ure. Rocks of Cretaceous, Tertiary and Quaternary age crop out in the zone. In the subarea Alto San Jorge the principal structure is a syncline with a south-north direction. The San Pedro Ure subarea is formed by undulations with flanks of low dip, the most important being the San Antonio Syncline because it contains the mining block. The geological study of the surface demonstrated the existence of coal in the Oligocene Cienaga de Oro Formation and the Niocene Cerrito Formation, with potential resources of 6.3 billion tons. The subsequent exploration of the subsoil, with 20.618 m of drilling, permitted determination of demonstrated reserves in the order of 2.9 billion tons within two areas. In the sector selected for the mine plan, in the area of San Pedro-Puerto Libertador, 7.791 m of drilling was accomplished to define a demonstrated reserve of 515 million tons of coal down to a depth of 200. The combustible type coal has 5.000 cal/g. Complete mining schedules were developed at the prefeasibility level for two surface mines with productions of 1.5 MMTY and 4 MMTY. 9 figs., 3 tabs., 28 refs.

  10. Caracterización de pacientes con sangramiento digestivo alto Characterization of patients presenting with high digestive bleeding

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    Jean Le'Clerc Nicolás

    2010-06-01

    Full Text Available INTRODUCCIÓN. El sangramiento digestivo alto continúa siendo un problema de salud, y junto al abdomen agudo, las heridas y los traumatismos es prácticamente la razón de ser de una guardia de cirugía. MÉTODOS. Se realizó un estudio observacional, descriptivo y de corte transversal, cuyo universo estuvo constituido por todos los pacientes con este diagnóstico ingresados en el Hospital Docente Clinicoquirúrgico «Joaquín Albarrán», entre enero del 2006 y diciembre del 2007 (2 años. RESULTADOS. Las edades más frecuentes estuvieron entre los 70 y 79 años, y fue más frecuente el sexo masculino y el antecedente de enfermedad cardiovascular. La melena fue la principal manifestación clínica. La endoscopia solo se realizó en el 25,16 % de los casos, y en ella se observó principalmente duodenitis y gastritis. Como medidas terapéuticas más comunes se practicaron la hidratación y el uso sondas de Levine. Solo el 20,48 % de los pacientes recibieron tratamiento contra Helicobacter pylori. La estadía hospitalaria promedio fue de 6 días o más. CONCLUSIONES. Las medidas generales de apoyo hemodinámico y la estrecha vigilancia de los pacientes pueden lograr salvaguardar sus vidas aunque no se disponga de un diagnóstico certero. La infección por Helicobacter pylori y su asociación a lesiones erosivas o ulcerosas de la mucosa gastroduodenal no ha sido totalmente asimilada en el pensamiento médico de los cirujanos. La función de la cirugía es cada vez menor en la terapéutica del sangramiento digestivo alto, a pesar de ser uno de los pilares fundamentales para enfrentarlo.INTRODUCTION. High digestive bleeding remains as health problem and together with acute abdomen, wounds and traumatisms is practically the main responsibility of a surgery rounds. METHODS. A cross-sectional, descriptive and observational study was conducted in a sample including all patients with this diagnosis admitted in "Joaquín Albarrán" Clinical Surgical

  11. Microsistemas deportivos de alto nivel. Un estudio descriptivo de clubes de karate de elite de España

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    Juan José Salinero Martín

    2007-03-01

    Full Text Available El deporte de alto rendimiento exige un conocimiento exhaustivo de todos los aspectos implicados en el desarrollo deportivo. Por tanto, se antoja imprescindible profundizar, no solo en las características de los actores principales, entrenador y deportista, sino también en las de los sistemas de desarrollo deportivo en que se desenvuelven. Nos decantamos por el karate como objeto de estudio por ser esta una modalidad en la que nuestro país ocupa un lugar en la élite mundial. Se analizaron 15 clubes de elite de España, incluyendo a sus entrenadores (n = 17 y deportistas competidores senior y junior (n = 67. Se ha mostrado que uno de los puntos fuertes de los clubes deportivos que tienen grandes éxitos deportivos, es la contrapartida que reciben a su vez de estos deportistas de alto nivel. Al entrenar éstos en el club, están aumentando el nivel de entrenamiento y hacen que los demás deportistas se beneficien de este mayor nivel. Se crea lo que hemos denominado como Clima de excelencia, que se vive en el club y del que se hacen partícipes todos los integrantes del mismo, y que no solo sirve para aumentar el nivel deportivo, sino que además refuerza la motivación de los demás deportistas que perciben que pueden aspirar a esos niveles de rendimiento, al compartir el mismo sistema deportivo. Algo similar ocurre a nivel regional o local. Donde existe un mayor nivel, las competiciones (campeonatos regionales, locales, ligas de clubes tienen mayor exigencia y esto propicia la mejora. En estos microsistemas deportivos, en virtud de lo citado por los deportistas, la clave de su buen funcionamiento radica en el factor humano, pues señalan las características del entrenador y del grupo como los puntos fuertes del club. Los entrenadores de estos clubes de elite se presentan como entrenadores expertos, con un amplio bagaje en el mundo del karate, con un conocimiento en primera persona de todas las facetas de este deporte, habiendo pasado

  12. Identidad social de un grupo de altos ingresos económicos. Social identity of a group of high income

    Directory of Open Access Journals (Sweden)

    Gabriela Dujarric Bermúdez

    2015-12-01

    Full Text Available La investigación indaga la existencia de una relación entre los ingresos económicos y la identidad, para lo cual se trabajó con un grupo de altos ingresos de la provincia de La Habana. Desde el Enfoque de Identidades Sociales se intenta comprender la configuración subjetiva de este grupo, así como su proyección ante la situación actual del país. Utilizamos un enfoque mixto, procesando la información a partir del Statistical Packetfor Social Sciencies (SPSS y el análisis de contenido. Los resultados obtenidos evidencian que los ingresos modelan una identidad social y constituyen un referente sobre cómo se está moviendo la subjetividad de este grupo social, así como de su proyección ante la situación actual del país. The research investigates the existence of a relationship between economic income and social identity, for which we worked with a group of high incomes in the province of Havana. From the Social Identity Perspective we try to understand the subjectivity of this group and its projection to the current situation. We worked with a mixed methodology and processed the information using the Statistical Packet for Social Sciencies (SPSS and the content analysis. The results show that incomes shape an identity and give some hints about the movement ofthis group social subjectivity, in this period of reforms.

  13. Plantas hipoglicemiantes utilizadas por comunidades tradicionais na Bacia do Alto Paraguai e Vale do Guaporé, Mato Grosso - Brasil

    Directory of Open Access Journals (Sweden)

    M. Macedo

    Full Text Available No Brasil, com inúmeras espécies tropicais, evidencia-se o conhecimento e uso da vegetação medicinal pelas comunidades quilombolas, ribeirinhas, rurais, tradicionais e indígenas, que são praticadas até os dias atuais. O Estado de Mato Grosso pela sua localização no Planalto Central brasileiro possui uma variedade destas comunidades, que utilizam estas plantas medicinais, levando em consideração o conhecimento popular passado de geração em geração. Esta pesquisa visa identificar a forma de coleta e os usos desse grupo vegetal indicados pelos usuários. O estudo foi realizado em 15 comunidades tradicionais (não indígenas na Bacia do Alto Paraguai e 2 (duas no Vale do Guaporé. A coleta de dados deu-se através de líderes comunitários, benzedeiras, parteiras e usuários utilizando o método qualitativo, mediante abordagem qualitativa, com auxílio de entrevistas estruturadas, semi-estruturadas e abertas. Dentre as espécies identificadas 17 estacam-se para o tratamento do Diabetes, dentre elas citam-se: Anacadium humile; Bauhinia glabra; Cecropia pachystachya; Hancornia speciosa; Heteropteris aphrodisiaca; Leonotis nepetifolia; Momordica charantia; Solanum lycocarpum. Registra-se ainda que as partes mais utilizadas desses vegetais são: folhas, casca do caule, raiz, planta toda, brotos, óleos dos frutos e polvilho dos frutos. De acordo com os usuários a maioria das plantas não podem ser colhidas após o nascer do sol e o preparo deve ser feito com folhas secas ou que tenham sido submetidas ao processo de secagem sobre o fogão de lenha ou em local abafado.

  14. Aproximación histórica y metalúrgica a los primeros hornos altos

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    Setién, J.

    2008-08-01

    Full Text Available This work presents a brief historical review of the origin and development of the first Spanish blast furnaces, as an essential part of The Royal Artillery Works at Liérganes and La Cavada. After a concise description of the siderurgical processes involved, the results of the metallurgical analysis performed on slags from these furnaces are shown. Also the metallographic study of a cannonball is included. These results reveal that, in spite of the well-known quality of the cast products, the mineral reduction in furnaces was not complete and the associated processes were not totally under the foundryman’s control.

    En este trabajo se presenta una somera revisión histórica del origen y funcionamiento de los primeros hornos altos que operaron en España, como parte esencial de las Reales Fábricas de Artillería de Liérganes y La Cavada. Tras describir brevemente los procesos siderúrgicos involucrados, se muestran los resultados de los análisis metalúrgicos efectuados sobre muestras de escorias procedentes de estos hornos, así como el estudio metalográfico de una bala de cañón de idéntica procedencia. Estos resultados muestran que, a pesar de la reconocida calidad de las piezas de artillería obtenidas, los procesos de reducción de mineral aplicados en el horno eran imperfectos y no estaban totalmente bajo el control del fundidor.

  15. Estimation of emissions of volatile organic compounds in the fuel marketing terminal Recope, Alto de Ochomogo, Cartago, Costa Rica

    Directory of Open Access Journals (Sweden)

    Laura Vanessa Quesada Carvajal

    2018-01-01

    Full Text Available Context: This study presents the estimation of the evaporative emissions generated in the fuel distribution plant in El Alto de Ochomogo, Cartago, Costa Rica and the selection of the adequate recovery system to reduce the emission of these gases into the atmosphere, thus decreasing the adverse effects caused by these compounds in the environment and the health of nearby populations. Method: The fugitive emission rate estimated in the tanker vehicle loading process, using load loss emission factors, and fuel storage, through specialized software. Subsequently, we proceeded to make the selection of the appropriate treatment system, considering the flow capacity of the gaseous current that each technology can treat. Results: It was determined that the generation of VOCs is greater in the loading area than in the storage tanks, since they correspond to 95% and 5% respectively. Due to this, the proposal of the vapor treatment system focuses on the fuel-loading zone, selecting the cryogenic condensation as non-destructive recovery treatment. Conclusions: The estimation of the fugitive emission rate allowed to have a base to establish a strategy for the reduction of these emissions in favor of the health of the workers who are constantly exposed to them. To reduce direct emissions to the atmosphere during the loading of tanks. Necessary changes must be made to adapt them to an airtight system. That allows sending gasoline vapors that generated by the presence of residual product on the walls of trucks and due to the turbulence that arises during the loading of the new product, to the vapor recovery unit.

  16. A Community in Life and Death: The Late Neolithic Megalithic Tomb at Alto de Reinoso (Burgos, Spain.

    Directory of Open Access Journals (Sweden)

    Kurt W Alt

    Full Text Available The analysis of the human remains from the megalithic tomb at Alto de Reinoso represents the widest integrative study of a Neolithic collective burial in Spain. Combining archaeology, osteology, molecular genetics and stable isotope analysis (87Sr/86Sr, δ15N, δ13C it provides a wealth of information on the minimum number of individuals, age, sex, body height, pathologies, mitochondrial DNA profiles, kinship relations, mobility, and diet. The grave was in use for approximately one hundred years around 3700 cal BC, thus dating from the Late Neolithic of the Iberian chronology. At the bottom of the collective tomb, six complete and six partial skeletons lay in anatomically correct positions. Above them, further bodies represented a subsequent and different use of the tomb, with almost all of the skeletons exhibiting signs of manipulation such as missing skeletal parts, especially skulls. The megalithic monument comprised at least 47 individuals, including males, females, and subadults, although children aged 0-6 years were underrepresented. The skeletal remains exhibited a moderate number of pathologies, such as degenerative joint diseases, healed fractures, cranial trauma, and a low intensity of caries. The mitochondrial DNA profiles revealed a pattern pointing to a closely related local community with matrilineal kinship patterns. In some cases adjacent individuals in the bottom layer showed familial relationships. According to their strontium isotope ratios, only a few individuals were likely to have spent their early childhood in a different geological environment, whilst the majority of individuals grew up locally. Carbon and nitrogen isotope analysis, which was undertaken to reconstruct the dietary habits, indicated that this was a homogeneous group with egalitarian access to food. Cereals and small ruminants were the principal sources of nutrition. These data fit in well with a lifestyle typical of sedentary farming populations in the

  17. Factores asociados a la colonización por Streptococcus del grupo B en mujeres embarazadas de Los Altos, Chiapas

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    Ocampo-Torres Moisés

    2000-01-01

    Full Text Available OBJETIVO: Estimar la prevalencia de colonización por Streptococcus del grupo B (SGB en mujeres embarazadas de Los Altos, Chiapas, y analizar factores asociados a la misma. MATERIAL Y MÉTODOS: Es un estudio transversal realizado de febrero a septiembre de 1999 en tres hospitales públicos de segundo nivel en San Cristóbal de las Casas, Chiapas. A 910 mujeres que acudieron para atención de parto a dichos hospitales, se les tomaron muestras (vaginal y perianal para detección de SGB por cultivo e identificación de grupo y serotipo mediante aglutinación en látex. El análisis de factores asociados a la colonización se realizó medianteji² y modelos log-lineales. RESULTADOS: La colonización por SGB fue de 8.6% (IC 95% 6.8 - 10.5. Las mujeres con mayor probabilidad de colonización fueron las de > o = 5 embarazos, residentes de municipios marginados, de ocupación diferente al hogar y con jefe/jefa de familia agrícola (26.8%, RM= 7.25, IC 95% 1.83 - 28.67. CONCLUSIONES: Es necesario que las acciones para la prevención y control de infección por SGB se dirijan principalmente a la población de mayor riesgo de colonización en el área de estudio, con el fin de disminuir la transmisión perinatal de SGB.

  18. Las Prácticas de Alto Rendimiento en Recursos Humanos: el Caso Español

    Directory of Open Access Journals (Sweden)

    Roberto Luna Arocas

    2013-02-01

    Full Text Available La presente investigación tiene como objetivoprioritario ahondar en el conocimiento sobre la tipologíae intensidad del uso en las empresas españolas de lasdenominadas Prácticas de Alto Rendimiento de recursoshumanos. Para llevar a término este análisis se utilizóuna metodología multivariada sobre una muestra de184 empresas pertenecientes a la asociación AEDIPE.Además del análisis descriptivo, se ha intentado explicarqué contextos estratégicos y organizativos favorecenla aparición de estas prácticas de recursos humanos.Creemos que este esfuerzo tiene una clara recompensapráctica, ya que permite no sólo dilucidar la “salud”en materia de recursos humanos del tejido empresarialespañol, sino además alertar al empresario, qué conoceperfectamente su contexto estratégico y organizativo,sobre los peligros en materia de recursos humanos enlos que está incurriendo.   ABSTRACT This investigation has as main objective to deepenin the knowledge of the use in the Spanish companiesof typology and intensity denominated as of HumanResources High Performance Practices. In order tofulfill this analysis a multivariate methodology wasused on a sample of 184 companies pertaining to theAEDIPE association. In addition to the descriptiveanalysis, it has been tried to explain what strategic andorganizational contexts favor the appearance of thesehuman resources practices. We believe this effort a clearrewarding practice, since it allows not only to explain“health” regarding human resources of the Spanishenterprise fabric, but additionally to alert the managerthat perfectly knows his strategic and organizationalcontext about the dangers in the matter of humanresources which he is making.

  19. Modelización aplicada al diseño de sistemas de control en el horno alto

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    Rosal, R.

    1995-06-01

    Full Text Available The production of pig iron in blast furnaces resists automatic control strategies due to the lack of knowledge about physical and chemical phenomena taking place inside the reactor. High dimensions lead to important dead times and lags. As a consequence it is very difficult to quantify control actions from actual process measurements. A simplified multizonal mathematical model has been proposed that allowed the description of a given blast furnace excluding hearth. Parameters underlying the model have been identified and, under appropriate assumptions, temperature and composition profiles have been established. The analysis of model predictions has been illustrated with steady-state responses to typical control actions.

    El control del proceso de fabricación de arrabio en hornos altos resulta complejo debido a las condiciones de operación: conocimiento incompleto de la quimicofísica de los procesos que tienen lugar en el interior del homo, grandes dimensiones del reactor que se traducen en tiempos muertos considerables y constantes de tiempo elevadas que provocan una gran inercia a las acciones de control. En este trabajo, se ha planteado un modelo matemático por zonas que permite describir el comportamiento del homo excepto el crisol, se han identificado sus parámetros y se ha obtenido el perfil interno de temperaturas y composiciones. El análisis del modelo permite predecir los efectos de un cambio en cualquier variable del sistema así como desarrollar un algoritmo de control automático.

  20. A Community in Life and Death: The Late Neolithic Megalithic Tomb at Alto de Reinoso (Burgos, Spain)

    Science.gov (United States)

    Garrido-Pena, Rafael; Knipper, Corina; Szécsényi-Nagy, Anna; Roth, Christina; Tejedor-Rodríguez, Cristina; Held, Petra; García-Martínez-de-Lagrán, Íñigo; Navitainuck, Denise; Arcusa Magallón, Héctor; Rojo-Guerra, Manuel A.

    2016-01-01

    The analysis of the human remains from the megalithic tomb at Alto de Reinoso represents the widest integrative study of a Neolithic collective burial in Spain. Combining archaeology, osteology, molecular genetics and stable isotope analysis (87Sr/86Sr, δ15N, δ13C) it provides a wealth of information on the minimum number of individuals, age, sex, body height, pathologies, mitochondrial DNA profiles, kinship relations, mobility, and diet. The grave was in use for approximately one hundred years around 3700 cal BC, thus dating from the Late Neolithic of the Iberian chronology. At the bottom of the collective tomb, six complete and six partial skeletons lay in anatomically correct positions. Above them, further bodies represented a subsequent and different use of the tomb, with almost all of the skeletons exhibiting signs of manipulation such as missing skeletal parts, especially skulls. The megalithic monument comprised at least 47 individuals, including males, females, and subadults, although children aged 0–6 years were underrepresented. The skeletal remains exhibited a moderate number of pathologies, such as degenerative joint diseases, healed fractures, cranial trauma, and a low intensity of caries. The mitochondrial DNA profiles revealed a pattern pointing to a closely related local community with matrilineal kinship patterns. In some cases adjacent individuals in the bottom layer showed familial relationships. According to their strontium isotope ratios, only a few individuals were likely to have spent their early childhood in a different geological environment, whilst the majority of individuals grew up locally. Carbon and nitrogen isotope analysis, which was undertaken to reconstruct the dietary habits, indicated that this was a homogeneous group with egalitarian access to food. Cereals and small ruminants were the principal sources of nutrition. These data fit in well with a lifestyle typical of sedentary farming populations in the Spanish Meseta during

  1. Environmental evaluation of fluoride in drinking water at "Los Altos de Jalisco," in the central Mexico region.

    Science.gov (United States)

    Hurtado, Roberto; Gardea-Torresdey, Jorge

    Naturally occurring fluoride has been detected and quantified in drinking water in several cities of the "Los Altos de Jalisco" (LAJ) region. LAJ is located in the northeastern part of the state of Jalisco-Mexico, covering an area of 16,410 km2 with a population of 696,318 in 20 municipalities. Drinking water comes mainly from groundwater aquifers, located in the Trans-Mexican Volcanic Belt, which is a volcanic region characterized by hydrothermal activity. Results indicated that water supply from 42% of the municipalities had a fluoride concentration over the Mexican standards of 1.5 mg/L. It is important to notice that there are three cities, Lagos de Moreno (1.66-5.88 mg/L F(-)), Teocaltiche (3.82-18.58 mg/L F(-)), and Encarnación de Díaz (2.58-4.40 mg/L F(-)) where all water samples resulted in fluoride concentration over the maximum contaminant level. The total population from these three cities is over 122,000 inhabitants. Another important city with high levels of fluoride in the water supply was Tepatitlán de Morelos (2 wells with 6.54 and 13.47 mg/L F(-)). In addition to water supply, 30 samples of brand-name bottled water were tested. Surprisingly, 8 samples (27%) demonstrated fluoride level over the standards, mainly Agua de Lagos with 5.27 mg/L. Fluoridated table salt (200-300 mg/kg F(-)) is another important source of fluoride. A large number of people living in the region, mainly school children, might be under adverse health risk because they are consuming contaminated drinking water. It is well known that long-term exposure to water with high levels of fluoride produces severe health problems.

  2. Plantas transgénicas con alto rendimiento en peso seco y almidón cuyos órganos de reserva presentan elevada textura, elevado contenido en almidón y elevado rendimiento en peso seco

    OpenAIRE

    Pozueta Romero, Javier; Alonso Casajús, Nora; Muñoz Pérez, Francisco José; Baroja-Fernández, Edurne

    2007-01-01

    Plantas transgénicas con alto rendimiento en peso seco y almidón cuyos órganos de reserva presentan elevada textura, elevado contenido en almidón y elevado rendimiento en peso seco. La presente invención proporciona plantas transgénicas con alto rendimiento en peso seco y almidón cuyos órganos de reserva presentan elevada textura, elevado contenido en almidón y elevado rendimiento en peso seco.

  3. Arsenic in drinking water in the Los Altos de Jalisco region of Mexico Arsénico en el agua potable de la región de Los Altos de Jalisco, México

    Directory of Open Access Journals (Sweden)

    Roberto Hurtado-Jiménez

    2006-10-01

    Full Text Available OBJECTIVE: To establish the degree of contamination by arsenic in drinking water in the Los Altos de Jalisco (LAJ region of west-central Mexico, and to estimate the levels of exposure that residents of the area face. METHODS: Total arsenic concentration (the sum of all arsenic forms, organic and inorganic was determined for 129 public water wells in 17 municipal capitals (cabeceras municipales of the LAJ region, using inductively coupled plasma-optical emission spectroscopy. For most of the wells, water samples were taken in both November 2002 and October 2003. The levels of exposure to arsenic were estimated for babies (10 kg, children (20 kg, and adults (70 kg. RESULTS: Mean concentrations of arsenic higher than the Mexican national guideline value of 25 µg/L were found in 44 (34% of the 129 wells. The mean concentration of total arsenic for the 129 wells ranged from 14.7 µg/L to 101.9 µg/L. The highest concentrations were found in well water samples collected in the cities of Mexticacán (262.9 µg/L, Teocaltiche (157.7 µg/L, and San Juan de los Lagos (113.8 µg/L. Considering the global mean concentration for all the wells in each of the 17 cities, the mean concentration of arsenic exceeded the Mexican guideline value in 7 of the cities. However, the global mean concentration in all 17 cities was higher than the World Health Organization guideline value of 10 µg/L for arsenic. The range of the estimated exposure doses to arsenic in drinking water was 1.1-7.6 µg/kg/d for babies, 0.7-5.1 µg/kg/d for children, and 0.4-2.7 µg/kg/d for adults. CONCLUSIONS: At the exposure doses estimated in the LAJ region, the potential health effects from chronic arsenic ingestion include skin diseases, gastrointestinal effects, neurological damage, cardiovascular problems, and hematological effects. While all the residents may not be affected, an important fraction of the total population of the LAJ region is under potential health risk due to the

  4. Estudios adicionales sobre los Crocodylia y Testudinata del Alto Caquetá y Río Caguán Estudios adicionales sobre los Crocodylia y Testudinata del Alto Caquetá y Río Caguán

    Directory of Open Access Journals (Sweden)

    Medem Federico

    1969-06-01

    Full Text Available Se llevaron a cabo estudios adicionales sobre problemas de reproducción de la babilla (Caiman sclerops y tres especies de tortugas (Podocnemis expansa, Podocnemis unifilis y Phrynops geoffroanus tuberosus.  Los resultados principales son los siguientes:  1 Caiman sclerops. Los huevos miden de 67.0 : 41.5 mm. a 73.5 : 41.0 mm.  La longitud total de los recién nacidos comprende de 239.5 mm. a 255.5 mm.; pesan entre 32 g, 250 mg. y 47 g.  2 Podocnemis expansa. No es nativa del Alto Caquetá, sino ha sido introducida de su curso bajo y del Putumayo en 1940, 1943 y 1955.  Actualmente está establecida y se reproduce. Los huevos miden de 44.5 : 36.5 mm, a 48.5 : 45.5 mm., y pesan de 34 g, 350 mg. a 44 g, 300 mg. La Iongitud del Carapax de los recién nacidos varía entre 39.5 mm. y 45.0 mm.; pesan de 17 g, 300 mg. a 20 g.  3 Podocnemis unifilis. Los huevos miden de 41.0 : 28.5 mm. a 51.0 33.5 mm., y pesan entre 15 g. y 31 g.; los recién nacidos de 34.0 a 48.0 mm., pesan de 8 g, 750 mg. a 21 g, 100 mg. Evidentemente, la luz constituye el factor más decisivo en relación con la orientación de la cría recién salida del nido, pero indudablemente existen también otros factores todavía desconocidos. Desarrollan una velocidad considerable para llegar al agua, así, por ejemplo, necesitan unos 25 minutos para recorrer una distancia de 96 metros; no permanecen en las aguas poco profundas cerca de la orilla, sino buscan en seguida las partes hondas donde encuentran mejor protección. En cambio, las babillas recién salidas si permanecen cerca de las orillas, ya que están protegidas por la hembra.  4 Phrynops geoffroanus tuberosus. Los huevos miden entre 32.5 31.5 mm, y 35.0 : 34.0 mm.; pesan de 13 g, 550 mg. a 22 g.; los recién nacidos entre 38.5 mm, y 48.0 mm., .y pesan de 7 g, 700 mg. a 14 g, 750 mg.  5 La Matamata (Chelus fimbriatus es, en realidad, nativa en el Alto Caquetá, y no ocasionalmente traída de otros ríos, como se

  5. Prevalencia del Enteroparasitismo en escolares de comunidades nativas del Alto Marañon, Amazonas, Perú

    Directory of Open Access Journals (Sweden)

    Nicanor Ibáñez H

    2004-07-01

    Full Text Available Objetivos: Determinar la prevalencia de infección por protozoarios y helmintos intestinales y su relación con el sexo, localidad de procedencia y grupo etáreo, en escolares nativos de la zona selvática del Alto Marañón, provincia de Bagua, departamento de Amazonas, Perú. Materiales y métodos: En este estudio transversal-observacional se seleccionó a los colegios representativos de la mencionada región lográndose examinar las muestras fecales de 1049 escolares de seis a 15 años de edad, entre octubre de 2001 y octubre de 2002, usando las técnicas microscópicas de observación directa, con solución salina fisiológica y lugol, de Teleman y de Kinnyoun. Resultados: La prevalencia de los protozoos y helmintos intestinales hallados es: Entamoeba coli 68,0%; Blastocystis hominis 28,4%; Endolimax nana 23,9%; Iodamoeba butschlii 32,9%; Giardia lamblia 21,4%; Entamoeba histolytica/dispar 12,9%; Cryptosporidium sp 01,9%; Paragonimus peruvianus 00,7% y Fasciola hepatica 00,2% (que no son parásitos intestinales sino de ubicación pulmonar y de vías biliares, respectivamente, pero sus huevos se encuentran en el contenido intestinal; Ancylostoma/Necartor 30,4%; Ascaris lumbricoides 28,9%; Trichocephalus trichiura 16,6%; Enterobius vermicularis 03,6%; Hymenolepis nana 03,5%; Taenia solium/saginata 00,2%; Strongyloides stercoralis 00,8% e H. diminuta 00,2%. Conclusiones: Ancylostoma/Necartor y A. lumbricoides se presentaron con mayor prevalencia en las poblaciones de menor edad de las comunidades de Mesones Muro y Nazaret, mientras que la infección humana por P. peruvianus se registra por primera vez en la región nororiental del Perú.

  6. Streamflow predictions in Alpine Catchments by using artificial neural networks. Application in the Alto Genil Basin (South Spain)

    Science.gov (United States)

    Jimeno-Saez, Patricia; Pegalajar-Cuellar, Manuel; Pulido-Velazquez, David

    2017-04-01

    This study explores techniques of modeling water inflow series, focusing on techniques of short-term steamflow prediction. An appropriate estimation of streamflow in advance is necessary to anticipate measures to mitigate the impacts and risks related to drought conditions. This study analyzes the prediction of future streamflow of nineteen subbasins in the Alto-Genil basin in Granada (Southeast of Spain). Some of these basin streamflow have an important component of snowmelt due to part of the system is located in Sierra Nevada Mountain Range, the highest mountain of continental Spain. Streamflow prediction models have been calibrated using time series of historical natural streamflows. The available streamflow measurements have been downloaded from several public data sources. These original data have been preprocessed to turn them to the original natural regime, removing the anthropic effects. The missing values in the adopted horizon period to calibrate the prediction models have been estimated by using a Temez hydrological balance model, approaching the snowmelt processes with a hybrid degree day method. In the experimentation, ARIMA models are used as baseline method, and recurrent neural networks ELMAN and nonlinear autoregressive neural network (NAR) to test if the prediction accuracy can be improved. After performing the multiple experiments with these models, non-parametric statistical tests are applied to select the best of these techniques. In the experiments carried out with ARIMA, it is concluded that ARIMA models are not adequate in this case study due to the existence of a nonlinear component that cannot be modeled. Secondly, ELMAN and NAR neural networks with multi-start training is performed with each network structure to deal with the local optimum problem, since in neural network training there is a very strong dependence on the initial weights of the network. The obtained results suggest that both neural networks are efficient for the short

  7. EROSÕES CONCENTRADAS EXISTENTES NA BACIA HIDROGRÁFICA DO ALTO CURSO DO RIO PITANGUI – PR

    Directory of Open Access Journals (Sweden)

    Clarice Farian de Lemos

    2011-11-01

    Full Text Available O objetivo do presente estudo é avaliar a evolução da erosão concentrada, nos períodos entre 1952 a 1980 e de 1981 a 2001, ocorrida na área da bacia hidrográfica do alto curso do rio Pitangui. Esta área localiza-se entre as coordenadas geográficas 24°52’ a 25º05’ de latitude Sul e 49°46’ a 50º00’ de longitude Oeste, entre os municípios de Castro, Carambeí e Ponta Grossa, totalizando 163,537 km². Está a uma altitude entre 918 a 1.170m acima do nível do mar e, pela classificação de Köppen, o clima é subtropical úmido mesotérmico - Cfb. Esta bacia encontra-se entre o Primeiro e Segundo Planalto Paranaense, em que a subunidade morfoescultural predominante é o Planalto de Castro. A geologia engloba Metarcósios e Metarenitos Quartzosos, rochas do Grupo Açungui (Formação Itaiacoca, do Complexo Granítico Cunhaporanga, do Grupo Paraná (Formação Furnas, do Grupo São Bento (Diques de Diabásio direção NW/SE e depósitos aluviais e coluviais recentes. Os tipos de solos encontrados pertencem aos grandes grupos dos Cambissolos, Latossolos, Nitossolos, Organossolos, Gleissolos e Neossolos com Afloramentos Rochosos. Para a realização desse estudo utilizou-se fotos aéreas nos anos de 1952 (1:25.000, 1980 (1:25.000 e 2001 (1:33.000; plantas planialtimétricas, com curvas de nível equidistantes de 5m; software de geoprocesssamento SPRING 5.0 e trabalhos de campos. Os resultados foram que, nas fotos aéreas de 1952, 1980 e 2001, identificou-se 12, 18 e 29 voçorocas e 76, 92 e 428 ravinas, respectivamente; a área e o volume da perda de sedimentos das voçorocas tiveram um acréscimo de 46,38 % e 47,24 %, no período de 1952 a 1980 e de 229,31 % e 393,28 %, no período de 1981 a 2001; e a área e o volume de sedimentos perdidos das ravinas tiveram um aumento de 48,89 % e de 38,96 %, para os mesmos períodos avaliados.

  8. Trabajo y gestación de alto riesgo por diabetes: dos circunstancias difíciles de conciliar

    Directory of Open Access Journals (Sweden)

    Janine Schirmer

    1997-03-01

    Full Text Available En 1991, la prevalencia de diabetes era de 7,6% en mujeres de nueve capitales brasileñas. Esta enfermedad ya consta entre las principales causas de defunción en ese país y se está convirtiendo en un problema de salud pública cada vez más alarmante. A pesar de los avances en el tratamiento de la diabetes y una mejor atención obstétrica, la diabetes gestacional pone a la embarazada en alto riesgo de aborto espontáneo, cetoacidosis, hipoglucemia, hipertensión y otros trastornos graves. En este estudio se investigaron mediante historias de vida las relaciones entre salud, sexualidad y trabajo en cinco mujeres diabéticas embarazadas atendidas en el Ambulatorio de Atención Prenatal del Hospital San Pablo. Todas tenían diabetes mellitus no insulinodependiente, entre 26 y 43 años de edad y ganaban mensualmente de US$ 150 a 375 por 8 horas de trabajo diario, con un descanso semanal. Dos tenían compañeros desempleados; todas realizaban las tareas domésticas del hogar durante el día de descanso. Las citas tomadas directamente de conversaciones con las cinco participantes revelan: la dificultad de cuidar los hijos y trabajar, el acoso sexual de que algunas son objeto, el trabajo como elemento de conflicto e insatisfacción, el mito de la felicidad natural de la maternidad, el control sexual que ejerce el hombre, la interferencia de las condiciones de trabajo y la actividad laboral con la gravidez, y la sensación de que están legalmente desamparadas debido a la falta de respeto de los empleadores por los derechos laborales y la protección de la maternidad que establece la Constitución Federal del Brasil. Se concluye que en las políticas de salud debe prestarse atención a mejorar la calidad de vida de las mujeres trabajadoras, especialmente si padecen diabetes y están embarazadas.

  9. CARACTERIZAÇÃO MORFOESTRUTURAL DO ALTO CURSO DA BACIA HIDROGRÁFICA DO RIO JAGUARIBE, CEARÁ-BRASIL

    Directory of Open Access Journals (Sweden)

    Mickaelle Braga da Silva

    2017-08-01

    Full Text Available O presente trabalho propõe uma análise morfoestrutural do alto curso da bacia hidrográfica do rio Jaguaribe, Ceará-Brasil, através da relação litologia/drenagem/relevo. A análise baseou-se em levantamentos bibliográficos e cartográficos; na aplicação de técnicas de geoprocessamento e tabulação e análise dos dados. Dentre os produtos de sensoriamento remoto disponíveis para a área, destacam-se os dados Shuttle Radar Topography Mission-SRTM, com resolução espacial de 30 metros. Este produto com o auxílio de softwares de geoprocessamento permitiu a extração da rede de drenagem e de lineamentos estruturais; a identificação e delimitação das unidades morfoestruturais; a compartimentação morfoestrutural dos lineamentos; a identificação e distribuição dos padrões de drenagem. Aplicou-se o cálculo e a geração dos gráficos de rosetas na espacialização da direção preferencial de frequência da drenagem e dos lineamentos estruturais. Neste contexto, foi possível identificar vários padrões de drenagem controlados por estruturas (padrões treliça e paralelo. Esses dados demostraram uma significativa compatibilidade de direções NE-SW e E-W, que sugerem lineamentos estruturais positivos e negativos representados por sequências de cristas e vales e trechos retilíneos escarpados, confinando canais de drenagem. Desta forma, foi possível estabelecer correlações com a distribuição da densidade de lineamentos e padrões de drenagem, constatando que são nos setores tectonicamente mais deformados que apresentam maior concentração de canais estruturalmente controlados.

  10. Efecto de empaquetamiento de las partículas en la durabilidad de los hormigones de alto desempeño

    Directory of Open Access Journals (Sweden)

    A. Castro

    Full Text Available Puesto que las estructuras de hormigón están expuestas a un alto grado de agresividad, se han realizado muchas investigaciones al respecto, en el área de la tecnología del hormigón. Los investigadores se han enfocado en la búsqueda de materiales que posean un mejor comportamiento mecánico así como una mayor durabilidad, para lo cual es necesario un hormigón obtenido mediante la ingeniería de la microestructura de los materiales. Como los materiales compuestos están formados por partículas de granulometría fina y una baja razón agua/aglomerante logran una matriz densa cuando se optimiza el empacamiento de sus partículas. Basándose en el concepto de empacamiento de las partículas en el diseño de los hormigones de alto desempeño, este trabajo analiza la durabilidad de esos materiales a través de la determinación de la penetración del ion cloruro y absorción de agua por inmersión y capilaridad. Se compararon las propiedades del hormigón diseñado bajo este concepto con las de los hormigones de alto desempeño diseñados de acuerdo a la metodología convencional, mostrando mejores propiedades en términos de durabilidad.

  11. Oncogenes E6-E7 de los Papilomavirus Humanos de alto riesgo detectados por PCR en Biopsias de pene incluidas en parafina

    Directory of Open Access Journals (Sweden)

    I Guerrero

    1999-01-01

    Full Text Available La alta prevalencia del papilomavirus humano (PVH, referida a nivel mundial, en lesiones genitales de ambos sexos, el rol del varón como reservorio pasivo del virus, y el incremento de la mortalidad por cáncer genital en la mujer en nuestro país, motiva la detección y correlación de los oncogenes de los PVH de alto riesgo con la neoplasia de pene. Informamos de diez casos de biopsias de carcinoma escamoso de pene, incluidos en parafina, los cuales fueron investigados para la presencia de los oncogenes E6-E7 de PVH de alto riesgo, utilizando cebadores tipo específico para los PVH -16 y 18, mediante la reacción en cadena de la polimerasa (PCR. El 40% de los casos mostró un producto de amplificación ADN E6-E7 de los PVH estudiados, correspondiendo el 75% de ellos a detección simple por PVH-18 y el 25% presentó detección mixta ADN E6 - E7 del PVH-16 y 18 simultáneamente. El producto de amplificación fue sometido a comprobación por análisis de restricción específico. La prevalencia obtenida de los oncogenes E6-E7 de los PVH de alto riesgo, usando un método tan sensible como la PCR, apoya el rol de estos virus en el proceso de carcinogénesis de la neoplasia de pene.

  12. Esquistossomose mansoni autóctone e outras parasitoses intestinais em escolares do bairro alto da Boa Vista, da Cidade do Rio de Janeiro

    Directory of Open Access Journals (Sweden)

    Virginia T. Schall

    1985-09-01

    Full Text Available Procedeu-se a um levantamento coproscópico em alunos de 8 a 15 anos, pertencentes a 3 escolas do Alto da Boa Vista. De 155 alunos examinados, encontraram-se 4 casos positivos (2,6% de esquistossomose. Entre 25 familiares destes, encontraram-se outros 4 casos positivos (16%. Havia na área uma população de Biomphalaria tenagophila (Orbigny, 1835, amplamente distribuída nas valas de irrigação de hortas de agrião, ligadas ao rio das Fumas. A taxa de infecção dos moluscos foi de 7 (0,29% em 2.400 examinados. Comparando-se estes resultados com dados anteriores, observa-se que a prevalência da esquistossomose se mantém no Alto da Boa Vista há pelo menos 15 anos.The present situation regarding schistosomiasis mansoni prevalence among primary school children was evaluated in the periphery of Rio de Janeiro city (Alto da Boa Vista. A coproscopic survey was carried out with students of 8 to 15 years oldfrom 3 schools of the area. Among 15 5 examined, 4 positive cases (2,6% of schistosomiasis were found. On examining 25 relatives of the positive students, 4 other positives cases (16% were found, all from the same region. The malacological survey carried out revealed a Biomphalaria tenagophila population largely distributed in the irrigation ditches of water-cress gardens surrounding the Fumas River. Seven (7 out of2400 snails collected were positive for Schistosoma mansoni (0,29%. Comparing these results with previous data, it can be observed that schistosomiasis prevalence has been maintained in this area for as long as 15 years. Stool examinations revealed a high prevalence of A. lumbricoides (48,4%. E. nana (23,5% and T. trichiura (38%.

  13. Mejoras tecnológicas en el proceso de inyección de carbón pulverizado en el horno alto

    Directory of Open Access Journals (Sweden)

    Babich, A.

    1996-04-01

    Full Text Available Blast furnace operation technology with pulverized coal injection (PCI has been carried out in order to replace the maximum amount of metallurgical coke in the burden. PC burning has been studied and methods and designs for the intensification of its combustion have been developed within the raceway. Recommendations for optimizing coal grinding have been developed. Problems of PC distribution inside the circumference of the furnace were investigated. Compensating technology for changes in reduction, heat exchange and other processes under PCI have been developed.

    Se estudia la tecnología de operación del horno alto con inyección de carbón pulverizado (ICP con el fin de sustituir el máximo posible de coque siderúrgico en la carga y se analizan aspectos de la combustión del carbón pulverizado (CP y los métodos y dispositivos elaborados para intensificar su combustión en la zona de toberas del horno alto. Se ofrecen recomendaciones para optimizar la molienda del carbón, se estudia la problemática de la distribución del CP a lo largo de la periferia del horno y se describe una tecnología elaborada para compensar las perturbaciones producidas por la inyección de CP en el horno alto sobre diferentes parámetros, tales como grado de reducción directa, intercambio térmico y otras.

  14. Brotes de rabia humana transmitida por vampiros en los municipios de Bajo y Alto Baudó, departamento del Chocó, Colombia 2004-2005

    OpenAIRE

    Jessika Valderrama; Ingrid García; Germán Figueroa; Edilberto Rico; Juliana Sanabria; Nicolás Rocha; Edgar Parra; Cecilia Saad; Andrés Páez

    2006-01-01

    Introducción. Entre mayo y julio de 2004 ocurrió en la comunidad Embera de Birrinchao de cuenca del río Purricha, Bajo Baudó, Chocó un brote de rabia humana con 14 víctimas. En enero de 2005 otro brote similar ocurrió en las comunidades negras de Pató y Nauca, Alto Baudó, Chocó, con tres nuevas víctimas. Objetivos. Describir los brotes de rabia humana transmitida por vampiros de mayor magnitud hasta ahora reportados en Colombia. Describir las técnicas diagnósticas utilizadas y las acciones...

  15. Evaluación microbiológica de la desinfección de alto nivel de los endoscopios flexibles en un hospital general

    OpenAIRE

    Robles, Christian; Turín, Christie; Villar, Alicia; Huerta-Mercado, Jorge; Samalvides, Frine

    2014-01-01

    Introducción: Los endoscopios flexibles son instrumentos de estructura compleja utilizados en procedimientos invasivos de la vía digestiva por lo que se recomienda la desinfección de alto nivel como un método de reprocesamiento apropiado. Sin embargo, en la mayoría de hospitales no se ha realizado un control de calidad que evalúe el cumplimiento y resultado del proceso de desinfección. Objetivos: Comprobar la eficacia del proceso de descontaminación de los endoscopios a nivel microbiológico y...

  16. Lanzamiento de nuevas marcas en industrias de productos homogéneos básicos con altos niveles de concentración.

    OpenAIRE

    Herrera E., Hernán

    2008-01-01

    El presente trabajo aplica los modelos de Cournot y de Stackelberg a una industria de productos homogéneos con alto nivel de concentración. El objeto es usar estos modelos como criterio de decisión acerca de la alternativa de introducir una nueva marca por parte de un competidor actual. Se trata de establecer si lanzar una nueva marca sería una estrategia relevante para una empresa en la búsqueda de captar mayor mercado. Se asume que en un mercado de bienes básicos y homogéneos, la demanda no...

  17. La empresarialidad informal como un reto de política económica: El caso de La Paz y El Alto, Bolivia

    OpenAIRE

    León Darío Parra Bernal

    2013-01-01

    En el presente caso de estudio se analiza la empresarialidad informal como un reto de política pública y económica. Para ello, se efectuaron 20 entrevistas en profundidad a microempresarios y comerciantes del sector informal en las ciudades de La Paz y El Alto, en Bolivia en 2010, y a 3 funcionarios públicos de instituciones de apoyo al fomento empresarial en el mismo país. La principal reflexión giró en torno al establecimiento de que los empresarios informales poseen un elevado nive...

  18. Técnicas para cálculo distribuido de alto desempeño en mecánica computacional de fluidos

    OpenAIRE

    Dalcin, Lisandro Daniel

    2010-01-01

    Esta tesis describe el intento de facilitar el acceso a recursos de cálculo paralelo de alto rendimiento desde un entorno de programación basado en el lenguaje de programación Python. El resultado neto de este esfuerzo son dos paquetes de código abierto, MPI para Python (conocido en breve como mpi4py) y PETSc para Python (conocido en breve petsc4py). MPI para Python es proyecto de software que provee un enlace para la programación en Python con la especificación para paso de mensaje...

  19. Energy saving in the pig iron production in the blast furnace no. 5; Ahorro de energia en la produccion de arrabio en el alto horno No. 5

    Energy Technology Data Exchange (ETDEWEB)

    Gil Diaz, Ricardo A; J Quiroz, Francisco; Rodriguez, Rita Patricia; Banuelos Garza, Yolanda [Altos Hornos de Mexico, S. A., Coahuila (Mexico)

    1994-12-31

    Altos Hornos de Mexico (AHMSA) is an iron and steel industry integrated to Grupo Acereros del Norte in Monclova, in the Coahuila state. With an a installed capacity of 3.1 millions of tons per annum o liquid steel. In its installations, AHMSA has the highest capacity blast furnace installed in Mexico, blast furnace No. 5, that has a useful volume of 2,163 cubic meters, designed to produce 4,800 tons of pig iron per day. The basic goal to achieve in the operations involved in the production of steel through the pig iron production in the blast furnace, is the hot metal production at the lowest attainable cost within the quality requirements specified by the steel makers. The most important criterion for the recognition of the attained success is the fuel consumption per ton of pig iron produced, with coke as the main fuel fed to the blast furnace and therefore of the greatest impact on the final product cost. AHMSA contemplated within its strategic plan, the reduction in the production of its coking plants derived from the natural aging of its furnaces, consequently it is pending the shortage of coke for productions higher than 2.6 MMT of liquid iron. In response to this, and faced to the true need of diminishing the production costs in the process of making pig iron, new practices have been implemented in the use of complementary fuels to partially substitute the metallurgical coke as an energy source for the blast furnace process. The use of natural gas, fuel oil and the gradual increase of the temperature of hot blow, have strongly impacted the metallurgical coke consumption, lowering it considerably and diminishing the costs per ton of pig iron in blast furnace No. 5. Another important issue, is the utilization of coke fines resulting form the sieving of the same, directly fed to the furnace load. This practice reduced the coke consumption, and most of all, the output of our coking plants was increased on being utilized at the maximum coke production

  20. Implante percutáneo de prótesis aórticas torácicas y abdominales en pacientes de alto riesgo quirúrgico

    Directory of Open Access Journals (Sweden)

    Juan C. Ortiz, MD

    2013-01-01

    Conclusiones: la mortalidad relacionada con el aneurisma en pacientes intervenidos con stent graft aórtico es baja. Ésta se asoció a la torácica y al mayor diámetro aneurismático. Las complicaciones no significaron un aumento en mortalidad. En conclusión, en pacientes con aneurisma aórtico y alto riesgo quirúrgico rechazados para cirugía abierta, el abordaje percutáneo es un tratamiento seguro y eficaz a un seguimiento a mediano plazo.

  1. IDENTIDAD SOCIAL DE LOS HABITANTES DE LA POBLACIÓN CAROL URZÚA PERTENECIENTE A LA COMUNA DE PUENTE ALTO

    OpenAIRE

    Pérez O., ALEJANDRA

    2012-01-01

    Esta investigación aborda la realidad de la población Carol Urzúa perteneciente a la comuna de Puente Alto en la Región Metropolitana, territorio en el cual se reconoce la presencia de problemáticas sociales como situaciones de pobreza, embarazo adolescente, bajos niveles educacionales, violencia social, microtráfico de drogas, hacinamiento, cesantía, entre otros, los que van configurando contextos de marginalidad y exclusión social. Estos fenómenos están mediados por dinámicas...

  2. Ventilación mecánica no invasiva y oxigenoterapia de alto flujo en el tratamiento de la insuficiencia respiratoria

    OpenAIRE

    Molinero Herrero, Nuria

    2017-01-01

    Trabajo de fin de Grado. Grado en Enfermería (Zamora). Curso académico 2016/2017 [ES]La enfermedad obstructiva crónica (EPOC) está incluida en las enfermedades que pueden asociar a insuficiencia respiratoria. El tratamiento de soporte ventilatorio de elección es la ventilación mecánica no invasiva (VMNI) por las múltiples ventajas que ofrece. Actualmente se está desarrollando el uso de la oxigenoterapia de alto flujo (ONAF) en pacientes con insuficiencia respiratoria hipoxémica...

  3. Los grupos de investigación de la Universidad del Quindío como equipos de trabajo de alto rendimiento

    OpenAIRE

    Rojas Valbuena, Luz Delly

    2006-01-01

    Tesis de grado (Maestría en Gerencia del Talento Humano). Universidad de Manizales. Facultad de Ciencias Sociales y Humanas, 2006 La presente investigación estudia el desarrollo organizacional de los grupos de investigación clasificación A y reconocidos por Colciencias de la Universidad del Quindío como equipos de trabajo de alto rendimiento período 2002-2005. El concepto de desarrollo organizacional está íntimamente ligado a los conceptos de cambio y de capacidad adaptativa...

  4. Análise do comportamento tático ofensivo em momentos críticos de alto desempenho no jogo de Handebol: um estudo misto Methods

    OpenAIRE

    Lozano, Demetrio; Camerino, Oleguer; Hileno, Raúl

    2016-01-01

    El objetivo del artículo es analizar las variables que influyen en las fases ofensivas críticas del balonmano de alto rendimiento desde una perspectiva dinámica ecológica y con un planteamiento Mixed Methods. Evaluamos los diferentes sistemas tácticos ofensivos en ataque posicional y en contraataque de las últimas diez posesiones del balón y acciones ofensivas de partidos de balonmano de élite mediante un análisis observacional en dos etapas. Una primera etapa CUALI, materia...

  5. Caracterización de procesos cognitivos de memoria, lenguaje y pensamiento, en estudiantes con bajo y alto rendimiento académico

    OpenAIRE

    Edilberto Mejía Quintero; Hugo Escobar Melo

    2012-01-01

    Este artículo presenta la caracterización de los procesos de memoria, lenguaje y pensamiento de cuatro grupos de estudiantes con bajo, medio, alto y superior rendimiento académico, entre los años de primero y quinto de primaria, con un rango entre seis y once años de edad, de un centro educativo de Bogotá-Colombia. Se aplicaron diez sub-pruebas delWISC-IV, para describir dichos procesos. El rendimiento académico se corroboró mediante informes escolares. Los resultados se procesaron con el SPS...

  6. Aporte a la geología del Alto de Mogna, al norte de la depresión del Tulum, provincia de San Juan

    OpenAIRE

    J.J. Zambrano; G. Suvires

    2005-01-01

    El Alto de Mogna, elevación estructural situada en la parte central de la provincia de San Juan, entre las provincias geológicas de las Sierras Pampeanas y la Precordillera Oriental, tiene rumbo este-oeste, transversal a las estructuras de las mencionadas cadenas montañosas, y separa dos depresiones tectónicas regionales: el valle del Bermejo, al norte, y la depresión de Tulum, al sur. En esta elevación estructural afloran fallas y pliegues, cuyo rumbo es prácticamente este-oeste, salvo en la...

  7. Nuclear structure of neutron rich gallium, germanium and arsenic around N=50 and development of a laser ion source at ALTO

    International Nuclear Information System (INIS)

    Tastet, B.

    2011-01-01

    During this thesis, we have studied β decays of gallium's nuclei around N=50 and prepared a laser ionization source at ALTO.The production of exotic isotopes has brought new beam production challenges. The one addressed here relates to the elimination of isobar contaminants that create background for experiments. To address this issue a laser ionization source has been developed at ALTO. Copper has been chosen to be the first element to be ionized for physical interests and to compare the results of the laser ionization source with the ones at others facilities. A laser setup has been installed and optimized in order to ionize selectively the atoms of copper produced for experiments. After the optimization, a test of ionization of stable-copper was performed. This test has shown us that the laser system is able to successfully ionize atoms of copper.The studies of the region of the neutron-rich nuclei around N=50 are still to complete. 79,80,82,83,84,85 Ga has been produced using photo-nuclear reactions at the experimental area of the on-line PARRNe mass-separator operating with the ALTO facility. The fission fragments are produced at the interaction of the 50 MeV electron beam delivered by the ALTO linear accelerator with a thick target of uranium in a standard UC x form. The oven is connected to a W ionizer heated up to 2000 C degrees that selectively ionizes alkalis but also elements with low ionization potentials such as Ga. The ions are accelerated through 30 kV and magnetically mass-separated before being implanted on a mylar tape close to the detection setup, so that this system allows us to study β and β-n decays of 79,80,82,83,84,85 Ga.The data analysis have produced new results concerning the decays of 80 Ga, 84 Ga and 84 Ge. For 80 Ga, the existence of an isomeric state has been confirmed and two different half-lives were measured for the ground state and the isomer. Furthermore, the analysis of 84 Ga decay confirmed two states and allowed us to

  8. Modelo de Acompañamiento Académico para estudiantes de alto rendimiento escolar en Contexto en la Universidad de Santiago de Chile

    OpenAIRE

    Miranda Molina, Rafael

    2016-01-01

    En el contexto del Programa de Acceso Inclusivo, Equidad y Permanencia de la Universidad de Santiago, se da cuenta de la articulación de un conjunto de acciones para el acompañamiento de estudiantes beneficiarios de la Beca de Nivelación Académica. Esta política, impulsada por el estado para fomentar la creación de programas de apoyo al estudiante, beneficia a estudiantes de alto rendimiento escolar en contexto, para proveerles de instancias de nivelación y apoyo académico durante el primer a...

  9. Energy saving in the pig iron production in the blast furnace no. 5; Ahorro de energia en la produccion de arrabio en el alto horno No. 5

    Energy Technology Data Exchange (ETDEWEB)

    Gil Diaz, Ricardo A.; J Quiroz, Francisco; Rodriguez, Rita Patricia; Banuelos Garza, Yolanda [Altos Hornos de Mexico, S. A., Coahuila (Mexico)

    1993-12-31

    Altos Hornos de Mexico (AHMSA) is an iron and steel industry integrated to Grupo Acereros del Norte in Monclova, in the Coahuila state. With an a installed capacity of 3.1 millions of tons per annum o liquid steel. In its installations, AHMSA has the highest capacity blast furnace installed in Mexico, blast furnace No. 5, that has a useful volume of 2,163 cubic meters, designed to produce 4,800 tons of pig iron per day. The basic goal to achieve in the operations involved in the production of steel through the pig iron production in the blast furnace, is the hot metal production at the lowest attainable cost within the quality requirements specified by the steel makers. The most important criterion for the recognition of the attained success is the fuel consumption per ton of pig iron produced, with coke as the main fuel fed to the blast furnace and therefore of the greatest impact on the final product cost. AHMSA contemplated within its strategic plan, the reduction in the production of its coking plants derived from the natural aging of its furnaces, consequently it is pending the shortage of coke for productions higher than 2.6 MMT of liquid iron. In response to this, and faced to the true need of diminishing the production costs in the process of making pig iron, new practices have been implemented in the use of complementary fuels to partially substitute the metallurgical coke as an energy source for the blast furnace process. The use of natural gas, fuel oil and the gradual increase of the temperature of hot blow, have strongly impacted the metallurgical coke consumption, lowering it considerably and diminishing the costs per ton of pig iron in blast furnace No. 5. Another important issue, is the utilization of coke fines resulting form the sieving of the same, directly fed to the furnace load. This practice reduced the coke consumption, and most of all, the output of our coking plants was increased on being utilized at the maximum coke production

  10. Propuesta de planificación y periodización de la fuerza en el judo en deportistas de alto nivel

    OpenAIRE

    Sánchez Delgado, Sergio

    2014-01-01

    En el presente trabajo se plantea una planificación de la fuerza alternativa para el judo en el alto nivel. Para ello, se han propuesto sesiones de entrenamiento específicas en tatami, así como específicas en gimnasio, así como una distribución de dichas sesiones durante las semanas de trabajo. Todo esto, en diferentes momentos de la temporada, los cuales hemos llamado periodos, que perseguirán unos objetivos concretos de una manera concreta y secuencializada.

  11. GESTÃO EMPRESARIAL COM RESPONSABILIDADE ECÓLOGICA: ANÁLISE DO PLANO DE GERENCIAMENTO DE RESIDUOS SOLIDOS DA ANGLO AMERICAN- BARRO ALTO

    Directory of Open Access Journals (Sweden)

    Raíssa Maria Lopes

    2016-12-01

    Full Text Available RESUMO: O tema Gestão Empresarial com Responsabilidade Ecológica vem sendo abordado com mais ênfase e tem ganhado espaço dentro das organizações, que por sua vez tem buscado se adequar às exigências legais e do mercado atual por meio da implantação do Sistema de Gestão Ambiental. Essa obra foi elaborada a partir da analise do PGRS[1] da Anglo American – Barro Alto de forma estratégica, afim de atingir e conscientizar o público interno da empresa, a comunidade acadêmica e a sociedade da importância de se gerenciar os resíduos sólidos gerados no nosso dia a dia. O objetivo do presente trabalho é analisar a eficácia da aplicabilidade da gestão de resíduos sólidos dentro da empresa, para o desenvolvimento desse trabalho foi realizada uma pesquisa bibliográfica a fim de fundamentar teoricamente os conceitos referentes à gestão empresarial e ambiental e uma pesquisa de campo onde foi realizada uma entrevista com a engenheira ambiental responsável pela implantação do Plano de Gerenciamento de Resíduos Sólidos na Anglo American Barro Alto. Palavras Chaves:Gestão Empresarial; Gestão Ambiental;Responsabilidade Ecológica; Gestão de Resíduos Sólidos.   Abstract: The topic Business Management with Ecological Responsibility has been approached with more emphasis and has gained ground in organizations, which in turn has sought to suit legal requirements and current market through the implementation of the Environmental Management System. This work was drawn from the analysis of the SWMP in Anglo American - Barro Alto strategically in order to reach and educate the company’s workforce, the academic community and the importance of managing solid waste generated in our day to day society. The objective of this  study is to analyze the effectiveness of the applicability of solid waste management within the company, to develop this work a literature search was performed to theoretically substantiate the concepts relating to

  12. La Campiña del alto Guadalquivir en la Baja Edad Media. La dinámica de un espacio fronterizo.

    Directory of Open Access Journals (Sweden)

    Juan Carlos CASTILLO ARMENTEROS

    2009-12-01

    Full Text Available RESUMEN: Esta aportación pretende efectuar una síntesis de las transformaciones introducidas en la Campiña del alto Guadalquivir tras la conquista castellana y la implantación drástica de una nueva estructura político-administrativa que sustituyó a la establecida en época islámica.ABSTRACT: This article is aimed to summarize the transformations which the Castilian conquest brought about in the upper Guadalquivir territory, as well as the drastic implantation of new political administrative structure which came to replace dramatically the one established during former Islamic period.

  13. First register of fruit flies (Diptera: Tephritidae in star fruit in Teresina, Altos and Parnaiba, state of Piaui, Brazil/ Primeiro registro de moscas-das-frutas (Diptera: Tephritidae em carambola nos municípios de Teresina, Altos e Parnaíba no estado do Piauí

    Directory of Open Access Journals (Sweden)

    Almerinda Amélia Rodrigues Araújo Soares

    2007-08-01

    Full Text Available The present work aims to register the occurrence of the fruit flies associated to star fruit (Averrhoa carambola L. in three counties of the state of Piaui, as well as to determine the frequency and the index of infestation of these insects. The fruits had been collected during the months of August and September 2005, and had been placed in plastic trays with sterilized soil, stored in metal cages, and left in environmental temperature at the laboratory. Until emergency, the adults had been kept in bottles with alcohol 70% and later identified in the species level. The biggest index of infestation (flies/fruit of C. capitata has occurred in the county of Altos (3.66, followed by Teresina and Parnaiba that had presented index of infestation of 2.18 and 0.016, respectively. C. capitata was the most frequent species in all the counties, presenting frequencies of 100%, 96.5%, and 100% in Teresina, Altos and Parnaiba, respectively. Ceratitis capitata is registered for the first time in star fruit in Teresina, Altos and Parnaiba, state of the Piaui. Anastrepha fraterculus is registered for the first time in the county of Altos. A. fraterculus and C. capitata occur simultaneously in star fruits.O presente trabalho visou conhecer as espécies de moscas-das-frutas associadas à carambola (Averrhoa carambola L. em três municípios do Estado do Piauí, bem como determinar a freqüência e o índice de infestação desses insetos. Os frutos foram coletados durante os meses de agosto e setembro de 2005, colocados em bandejas plásticas com solo esterilizado, armazenados em gaiolas metálicas e deixados em temperatura ambiente no laboratório. Até a emergência dos adultos, estes foram acondicionados em frascos contendo álcool 70% e posteriormente identificados em nível de espécie. O maior índice de infestação (moscas/fruto de C. capitata ocorreu no município de Altos (3,66, seguido pelos municípios de Teresina e Parnaíba que apresentaram

  14. Timpanismo gastrointestinal em equídeos alimentados com Panicum maximum com alto conteúdo de amido

    Directory of Open Access Journals (Sweden)

    Taciane M. Souza

    meses de novembro a fevereiro, com 2,7% a 5,1% de amido. Estes resultados sugerem que a causa das cólicas em equídeos em pastagens de P. maximum, na época de rebrote, é o alto conteúdo de amido das mesmas.

  15. INFLUENCIA DE LAS VARIABLES CONTEXTUALES EN EL RENDIMIENTO FÍSICO EN EL FÚTBOL DE ALTO NIVEL

    Directory of Open Access Journals (Sweden)

    C. Lago

    2010-09-01

    Full Text Available

     

    RESUMEN

    El objetivo de este estudio consistió en examinar el efecto de la localización del partido, el nivel del oponente y el marcador sobre la actividad física de los jugadores en el fútbol de alto nivel. Para ello fueron analizados 27 partidos disputados por un equipo de fútbol profesional en la temporada 2005-2006 de la Liga Española de Fútbol de Primera División utilizando un sistema computerizado de análisis del juego. La variable dependiente consistió en la distancia cubierta por los jugadores a diferentes intensidades. Los datos fueron analizados mediante un análisis de regresión lineal que incorporó cuatro variables independientes: el marcador del partido, la localización del encuentro (casa o fuera, el nivel del oponente y el puesto específico de los jugadores. Los resultados indican que la distancia cubierta por los jugadores a diferentes intensidades estuvo influida por una o más variables contextuales, con la localización del partido y, sobre todo, el marcador como aspectos más relevantes. Los futbolistas recorrieron menos distancia a alta intensidad (>19.1 km/h cuando tuvieron el marcador a favor que cuando iban perdiendo. Los jugadores que jugaron en casa cubrieron una distancia mayor que los visitantes a baja intensidad (< 14.1 km/h, pero no se apreciaron diferencias a media, submáxima o máxima intensidad .No hubo diferencias entre ningún puesto específico cuando se comparó la distancia cubierta a baja intensidad. Sin embargo, los delanteros y los interiores laterales cubrieron una distancia mayor que los defensas y los mediocentros a submáxima y máxima intensidad.
    Palabras Clave: análisis del juego, variables contextuales, fútbol. rendimiento físico.

     

    ABSTRACT

    The aim of this

  16. Impacto de las sequías en las comunidades del Alto valle de Chancay: 1940-1973

    Directory of Open Access Journals (Sweden)

    1994-01-01

    Full Text Available IMPACT DES SÉCHERESSES DANS LES COMMUNAUTÉS DE LA HAUTE VALLÉE DU CHANCAY : 1943-1973. Cinq sécheresses ont affecté durement les communautés de la haute vallée du Chancay entre 1940 et 1973. Ces sécheresses ont eu des impacts différents selon les communautés et selon l'époque où elles se manifestèrent. Les réponses à ces impacts ont déterminé des stratégies individuelles et communales qui ont conduit comuneros et comunidades à réorienter leur économie agro-pastorale en même temps qu'ils devaient prendre en compte d'autres facteurs socio-économiques régionaux qui bouleversaient leur mode de production (crise minière, réforme agraire. Ces sécheresses sont en partie à l'origine de l'abandon de l'élevage de llamas, de la suspension des cultures sous pluie, de la recomposition des terroirs et de spécialisations nouvelles dans l'élevage et l'agriculture. Entre 1940 y 1973, las comunidades del alto valle de Chancay fueron severamente afectadas por cinco sequías. El impacto de dichas sequías ha variado según el tipo de comunidad campesina y la época en la cual ocurrieron. Las estrategias individuales y comunales de respuesta a las sequías, han conducido a una reorientación de la economía agropecuaria, dentro de un contexto de transformaciones estructurales (crisis minera y reforma agraria. Las sequías provocaron parcialmente el origen del fin de la crianza de llamas, el abandono de los cultivos de secano, la recomposición de los terruños y de las nuevas especializaciones agrícolas y pecuarias. THE IMPACT OF DROUGHTS ON PEASANT COMMUNITIES IN THE HIGH CHANCAY VALLEY: 1943-1973. During the period spanning from 1940 to 1973, the peasant communities of the high Chancay valley were severely affected by five droughts. The impact of these droughts varied according to the kind of peasant community and the period in which they occurred. Individual and collective strategies in response to the droughts led to a re

  17. Periodización del entrenamiento de fuerza y resistencia en piragüistas de alto nivel

    Directory of Open Access Journals (Sweden)

    Jesús García-Pallarés

    2010-09-01

    Full Text Available Este estudio examinó en un grupo de 18 kayakistas varones de alto nivel (incluidos 11 medallistas de Campeonatos del Mundo o de Europa y dos Campeones Olímpicos los cambios en variables cardiorrespiratorias, neuromusculares, hormonales, composición corporal y de rendimiento durante un ciclo de 12 semanas de entrenamiento concurrente de fuerza y resistencia cardiovascular. Así mismo se analizaron los efectos producidos por un periodo de 4 semanas de puesta a punto (TAP y una fase de desentrenamiento (DTR de 5 semanas en la que la mitad de los palistas cesaron totalmente los estímulos de entrenamiento (CE y la otra mitad realizó únicamente una sesión de entrenamiento de fuerza y dos de resistencia semanales (RE. El volumen y la intensidad de entrenamiento fueron cuantificados a nivel individual durante todas las fases del estudio. El ciclo periodizado de entrenamiento concurrente de 12 semanas produjo aumentos significativos de un 9,5% en el consumo máximo de oxígeno (VO2max y de un 9,4% y en el consumo de oxígeno en el segundo umbral ventilatorio (VO2 VT2. La velocidad de desplazamiento en VO2max, y en VT2 aumentó un 6,2% y un 4,4% respectivamente. Los valores de una repetición máxima (1RM aumentaron un 4,2% en press banca (PB y un 5,3% en dorsal remos (DR, mientras que la velocidad con el 45% del 1RM (V45% aumentó un 14,4% en PB y un 10,0% en DR. Tras la fase de TAP no se observaron cambios significativos en ninguna de las variables estudiadas. Durante la fase de DTR, el grupo de CE mostró mayores descensos del 1RM (–8,9% y –7,8%, para el PB y el DR respectivamente que los observados para el grupo de RT (–3,9% y –3,4%. Los descensos en la V45% en el PB y el DR fueron mayores para el grupo de CE (–12,6% y –10,0% que para el grupo RE (–9,0% y –6,7%. Los descensos en el VO2max fueron menores tras la RE (–5,6% que tras la CE (–11,3%, aunque las pérdidas en VO2 VT2 fueron similares en ambos grupos. La fase de RE

  18. Tromboembolismo pulmonar masivo de alto riesgo asociado a foramen oval permeable High-risk massive pulmonary thromboembolism associated with patent foramen ovale

    Directory of Open Access Journals (Sweden)

    Antonio Miranda

    2012-04-01

    Full Text Available La alta mortalidad de los pacientes con tromboembolismo pulmonar masivo de alto riesgo amerita un enfoque terapéutico enérgico e invasivo que incluya la embolectomía pulmonar quirúrgica en aquellos pacientes con contraindicación para trombolisis o trombolisis fallida. Describimos un caso de tromboembolismo pulmonar masivo de alto riesgo que recibió tratamiento quirúrgico en vez de trombolisis debido a que al momento del diagnóstico presentaba un trombo móvil a través de un foramen oval permeable con altísima posibilidad de embolismo paradójico arterial.High mortality rate associated with massive pulmonary embolism requires an aggressive invasive approach including surgical pulmonary embolectomy when thrombolytic therapy has failed or is contraindicated. We describe a case of high-risk massive pulmonary embolism who underwent surgical treatment due to the presence of a mobile intracardiac clot in a patent foramen ovale, and the possible risk of paradoxical arterial embolism.

  19. Factibilidad de mezclas asfálticas de alto módulo con agregados del área de influencia de Tunja

    Directory of Open Access Journals (Sweden)

    Carlos Hernando Higuera Sandoval

    2013-12-01

    Full Text Available Se presentan los resultados del análisis de factibilidad de mezclas asfálticas de alto módulo (MAM con agregados pétreos provenientes de dos canteras del área de influencia de Tunja y asfalto modificado con polímeros tipo V. Las metodologías de diseño empleadas para determinar la fórmula de trabajo fueron Marshall y Ramcodes; el módulo dinámico de las respectivas mezclas se determinó por medio del ensayo de tracción indirecta en el equipo Nottingham Asphalt Tester – NAT–. Los resultados mostraron que las mezclas diseñadas tienen altos valores de flujo, lo que indica que se deforman fácilmente, y presentan valores de estabilidad superiores a las mezclas asfálticas convencionales; en cuanto al módulo dinámico, ninguna mezcla supera los 10.000 MPa a 20 ºC que exigen las especificaciones del INVIAS y del IDU; sin embargo, tomando como referencia la temperatura media anual ponderada de Tunja (13 ºC, una de las mezclas alcanza 11.000 MPa.

  20. O USO DO BIOFERTILIZANTE EM SOLOS AGRÍCOLAS DO CERRADO DA REGIÃO DO ALTO PARANAÍBA (MG

    Directory of Open Access Journals (Sweden)

    Rodrigo Cavalcanti do Nascimento

    2010-12-01

    Full Text Available Since the implementation of the integrated project in pork meat production, the region of Alto Paranaiba (MGfaced a new sector restructuring, which resulted in the installation of several agribusiness companies. However,the region is experiencing a strong environmental impact caused by the accumulation of pig slurry and themisuse of technological mechanisms that attempt to correct and fertilize soils without proper accountability.Aware of the various environmental concerns on a global scale that have been highlighted in international environmentalconferences (e.g., Kyoto Protocol, transnational companies, in partnership with pork meat producersfrom the region, began to invest in anaerobic biodigesters, which allow to reduce the organic load by 96%, providingelectrical energy (biogas and producing biofertilizer. From the results of research done by Embrapa, theapplication of biofertilizer on the coffee and corn plantation has brought gains in productivity and plague elimination.Analyzing the soil after application, has found harmful high chemical concentrations to the environment.Therefore, this article aims to analyze the positive and negative aspects. This article aims to analyze the use ofbiofertilizers in agricultural areas of the Alto Paranaiba (MG region, specifically in the municipalities of Patosde Minas and Patrocinio.

  1. Relación entre potencia máxima, fuerza máxima, salto vertical y sprint de 30 metros en atletas cuatrocentistas de alto rendimiento

    Directory of Open Access Journals (Sweden)

    Carlos Balsalobre-Fernández

    2012-06-01

    Full Text Available Mediante un diseño ex post facto y valiéndose de una muestra de catorce atletas cuatrocentistas de alto rendimiento, entre los que se encuentran diferentes medallistas nacionales del Estado Español, este estudio hace tres aportaciones: la primera, describe la fuerza de extremidades inferiores de este colectivo y su capacidad de aceleración en 30 metros; la segunda, informa de la relación de covariación entre, por una parte, la variable potencia y, por otra, la fuerza máxima, la fuerza explosiva y la capacidad de aceleración, encontrándose correlaciones significativas con valores entre 0,60 y 0,81; y la tercera, se demuestra que la potencia máxima de estos deportistas se encuentra entre el 50 % y el 70 % de su Repetición Máxima en media sentadilla. Asimismo, se discuten los resultados y se argumenta que el entrenamiento de la fuerza es una condición necesaria para mejorar el rendimiento deportivo de alto nivel, postulando que los datos sobre potencia máxima encontrados en este estudio ayudarán a técnicos y deportistas a planificar sus cargas óptimas de entrenamiento.

  2. Psicología en deporte universitario: estudio de carga mental y habilidades psicológicas en deporte de alto rendimiento

    Directory of Open Access Journals (Sweden)

    Juan Camilo Martínez Fernández

    2018-03-01

    Full Text Available Este estudio muestra los niveles de carga mental y de diferentes habilidades psicológicas relacionadas con el rendimiento deportivo en deportistas de alto rendimiento de la Universidad Icesi de la ciudad de Santiago de Cali (Colombia. Se efectuó una investigación no experimental de tipo transversal en la que se aplicaron los cuestionarios NASA-TLX y CPRD a 39 deportistas (24 hombres y 15 mujeres, entre edades de 18 años a 24 años. Los resultados del NASA-TLX dieron evidencia de un nivel de carga mental alto en los sujetos, lo que sugiere que la exigencia tanto académica como deportiva de la universidad está llevando a los atletas estudiantiles a unos niveles peligrosos de esfuerzo mental. Por otro lado, los puntajes obtenidos tras la aplicación del CPRD muestran que hay evidencias de diferencias significativas en la motivación entre deportes individuales y de conjunto, que pueden tener causa en las maneras en que se relacionan los deportistas. Estos resultados sugieren la pertinencia de la participación de la psicología en el entorno deportivo para lograr un entrenamiento íntegro, en el que se tenga en cuenta esas diferencias y así construir un ambiente óptimo para el buen desarrollo personal, emocional y claramente, deportivo.

  3. Classificação fitogeográfica das florestas do Alto Rio Xingu Phytogeographical classification of the Upper Xingu River forest

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    Natália Macedo Ivanauskas

    2008-01-01

    Full Text Available Este trabalho propõe a inclusão da categoria Floresta Estacional Perenifólia no sistema oficial de classificação da vegetação brasileira, devido às particularidades florísticas e fisionômicas da floresta da borda sul-amazônica, que atinge maior amplitude geográfica na região do Alto Rio Xingu. Para justificar essa inclusão são apresentadas as características ambientais (clima, solo, hidrologia e diferenças fisionômicas e florísticas entre as florestas do Alto Xingu e demais florestas ombrófilas da Bacia do Amazonas e estacionais do Planalto Central.This paper proposes the inclusion of the "Evergreen Seasonal Forest" category in the official system used to classify Brazilian forests. This proposal is based upon the floristic and physiognomic particularities of the Southern Amazonian forest, which reach a greater magnitude around the Upper Xingu River. In order to justify the inclusion, the paper reports environmental characteristics (climate, soil and hydrology as well as floristic and physiognomic differences between the Upper Xingu River forest and both the Ombrophilous Forest from the Amazon Basin and the Seasonal Forest of the Central Plateau.

  4. A nobilitação urbana no Bairro Alto: análise de um processo de recomposição sócio-espacial

    Directory of Open Access Journals (Sweden)

    Luís Mendes

    2006-06-01

    Full Text Available GENTRIFICATION IN BAIRRO ALTO: A SOCIO-SPATIAL RECOMPOSITION PROCESS ANALYSIS. The present-day phenomenon of gentrification must be contextualised in the profound economic changes which have been taking place in the urban spaces of capitalist western countries since the late 1960s. These changes cannot, however, be only understood and analysed as a result of speculating circuits of valuation/devaluation of the urban land and the estate goods existing there. The same happens with urban-architectonic policies of intervention, as well as with changes resulting from economic restructuring in the professional structure and social fabric of the city, highly skilled tertiary sector at its core. Choosing Bairro Alto as an illustrative case of this restructuring urban process in the city of Lisbon, I will analyse the most important changes in its demographic and socio-cultural structure, with the arrival of new dwellers since the beginning of the 1980s. The hypothesis is that the residential strategies’ reconfiguration of specific social sectors has been leading to the emergence of new appropriation and living models and, consequently, to the appearance of new estate products and new lodging formats in the neighbourhood. These assume the form of residential enclaves, which reinforce urban space fragmentation.

  5. Análisis de la operación del horno alto mediante la exergía térmica

    Directory of Open Access Journals (Sweden)

    Babich, A.

    1998-05-01

    Full Text Available In order to know the blast furnace thermic state, the thermic exergy can be used, which considers the temperatures level of the process. The magnitude analysis of thermic exergy for blast furnace operation using pulverized coal, natural gas and oxigen injection by tuyeres, shows that natural gas injection is less effective than pulverized coal and enriched blast with oxygen simultaneous injection.

    Para conocer el estado térmico del horno alto se puede utilizar la exergía térmica, que considera el nivel de temperaturas del proceso. El análisis de la magnitud de la exergía térmica, para la operación del horno alto, utilizando inyecciones por toberas de carbón pulverizado, de gas natural y viento enriquecido en oxígeno, en ambos casos muestra que la inyección de gas natural es menos efectiva que la inyección simultánea de carbón pulverizado y viento enriquecido con oxígeno.

  6. USOS DE LA TIERRA, CONFLICTO Y PODER POLÍTICO EN LA FRONTERA AGRÍCOLA DEL ALTO SINÚ 1940-1970

    Directory of Open Access Journals (Sweden)

    Ruth Esther Gutierrez

    2016-08-01

    Full Text Available El presente artículo presenta un recorrido histórico, a partir del cual aborda las perspectivas historiográficas desde donde se ha estudiado la manera cómo la subregión del alto Sinú se convirtió en una frontera agrícola, que a mediados del siglo XX y más específicamente entre 1940 y 1970, despertó un profundo interés en las élites económicas y políticas nacionales y regionales, quienes abiertamente iniciaron un proceso de acaparamiento de las tierras e instauración de sistemas laborales que incluían la sujeción de la mano de obra a las corrientes bipartidistas liberales y conservadoras. Así mismo, se presentan las formas contestatarias que adoptaron los campesinos del alto Sinú frente al monopolio de la tierra ostentado por gamonales y funcionarios públicos.

  7. Crisp clustering of airborne geophysical data from the Alto Ligonha pegmatite field, northeastern Mozambique, to predict zones of increased rare earth element potential

    Science.gov (United States)

    Eberle, Detlef G.; Daudi, Elias X. F.; Muiuane, Elônio A.; Nyabeze, Peter; Pontavida, Alfredo M.

    2012-01-01

    The National Geology Directorate of Mozambique (DNG) and Maputo-based Eduardo-Mondlane University (UEM) entered a joint venture with the South African Council for Geoscience (CGS) to conduct a case study over the meso-Proterozoic Alto Ligonha pegmatite field in the Zambézia Province of northeastern Mozambique to support the local exploration and mining sectors. Rare-metal minerals, i.e. tantalum and niobium, as well as rare-earth minerals have been mined in the Alto Ligonha pegmatite field since decades, but due to the civil war (1977-1992) production nearly ceased. The Government now strives to promote mining in the region as contribution to poverty alleviation. This study was undertaken to facilitate the extraction of geological information from the high resolution airborne magnetic and radiometric data sets recently acquired through a World Bank funded survey and mapping project. The aim was to generate a value-added map from the airborne geophysical data that is easier to read and use by the exploration and mining industries than mere airborne geophysical grid data or maps. As a first step towards clustering, thorium (Th) and potassium (K) concentrations were determined from the airborne geophysical data as well as apparent magnetic susceptibility and first vertical magnetic gradient data. These four datasets were projected onto a 100 m spaced regular grid to assemble 850,000 four-element (multivariate) sample vectors over the study area. Classification of the sample vectors using crisp clustering based upon the Euclidian distance between sample and class centre provided a (pseudo-) geology map or value-added map, respectively, displaying the spatial distribution of six different classes in the study area. To learn the quality of sample allocation, the degree of membership of each sample vector was determined using a-posterior discriminant analysis. Geophysical ground truth control was essential to allocate geology/geophysical attributes to the six classes

  8. Caracterización de las gestantes de alto riesgo obstétrico (ARO en el departamento de Sucre (Colombia, 2015

    Directory of Open Access Journals (Sweden)

    Judith Martínez Royert

    2016-01-01

    Full Text Available Objetivo: Caracterizar las gestantes de Alto Riesgo Obstétrico ( ARO que acuden a una IPS pública en el departamento de Sucre, Colombia (periodo enero, febrero y marzo de 2015. Material y métodos: Estudio cuantitativo, descriptivo. La muestra la conformaron 123 gestantes ARO . Se utilizó un instrumento elaborado por las investigadoras; se sometió a validez de constructo y contenido, y análisis de consistencia interna mediante el alfa de Cronbach. Resultados: El 13,18 % de las gestantes eran menores de 18 años; 38,2% procedentes de la capital y 19,5 % de la región del San Jorge; 66 % no manifestaron antecedentes patológicos; 13,8 % presentaron complicaciones de amenaza de aborto o de parto pretérmino; 37 % eran nulípara; 20.3 % tenían cesárea anterior; 22.8 % sufrieron abortos; 54.5 % manifestaron tensión emocional y mal humor; 82.9% no programaron el embarazo; 24 % con periodo intergenésico de 1 año; 55.3 % (68 gestantes se encontraban entre la semana 30 y 40 de gestación al momento de participar en el estudio. Conclusiones: La subregión de la Sabana y San Jorge fueron las que presentaron mayor número de gestantes de alto riesgo. Entre las patologías preexistentes más frecuentes se encontró anemias y migrañas, así como las del sistema endocrino y respiratorio. Esta investigación servirá como referente para proporcionar conocimiento respecto al perfil de las gestantes de alto riesgo en Sucre, para que los profesionales involucrados en su atención desempeñen un rol que permita contribuir al control y prevención de las complicaciones en ellas y en la reducción significativa de la mortalidad materna.

  9. Tensiomiografia utilizada para a avaliação de jogadores de vôlei de praia de alto nível

    Directory of Open Access Journals (Sweden)

    David Rodríguez Ruiz

    2012-04-01

    Full Text Available OBJETIVO: Esta investigação tem por objetivo coletar dados sobre rigidez muscular, as propriedades mecânicas e contráteis dos músculos utilizando a TMG em jogadores de vôlei de praia de alto nível, assim como demonstrar a utilidade deste método para a avaliação dos músculos responsáveis pela flexão e extensão do joelho. MÉTODOS: A investigação foi conduzida com um grupo de 24 jogadores de vôlei de praia os quais participaram do Torneio Europeu Nestea - Master Espanhol realizado nas Ilhas Grâ-Canárias em maio de 2009. O método de estudo utilizado foi comparação de casos individuais de vários atletas com a finalidade de verificar a utilidade deste método em esportes. Os músculos analisados foram: vasto lateral (VL, vasto medial (ML, reto femoral (RF e bíceps femoral (BF. RESULTADOS: As informações coletadas nos certificam sobre o alto grau de utilidade deste método para avaliação da rigidez muscular e equilíbrio entre estruturas musculares de atletas. Contudo, a validade e reconstrução dos resultados estão condicionadas a um severo protocolo de avaliação. Além disso, os seguintes critérios devem ser considerados: individualidade (o perfil do atleta e especificações (características do esporte. CONCLUSÕES: A aplicação da TMG em jogadores de alto nível revela a existência de importantes diferenças dependendo de suas funções em jogo (defesa, bloqueio ou alternância entre ambas as posições, as ações técnicas, a posição em quadra (direita-esquerda e o histórico de lesões médicas.

  10. Operación de hornos altos con inyección de carbón pulverizado en diferentes condiciones tecnológicas

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    Formoso Prego, Antonio

    2001-06-01

    Full Text Available Efficiency of pulverized coal injection (PCI at two blast furnaces (BFs in Spain and Ukraine which operate at different burden and blast conditions has been analyzed using statistical methods, calculation of material and heat balances and a mathematical model. Effect of PCI on the parameters of blast furnace operation, pig iron quality and also on interactions between process parameters has been studied. At high-grade burden and high parameters of the combined blast, dependence of coke consumption rate on PC amount is linear up to a high rate of PCI. At unfavorable burden and technological conditions dependence of the main furnace operating parameters on PC rate has extreme character. High efficiency of PC use can be achieved at the different conditions due to optimization of the technological regime.

    Se analiza la eficiencia de la inyección de carbón pulverizado (ICP en dos hornos altos (HAs, en España y Ucrania, que operan en condiciones diferentes de viento y carga, usando un modelo matemático, métodos estadísticos y cálculos de los balances de materias y térmico. Se estudia el efecto de la ICP sobre los parámetros de operación de alto homo, calidad del arrabio y, también, las interacciones entre los parámetros de proceso. Al operar con una carga de calidad y altos parámetros de viento combinado el consumo de coque disminuye linealmente al incrementar, hasta tasas elevadas, la ICP. La dependencia entre los principales índices de fusión y el caudal de CP adquiere un carácter extremo cuando se opera con carga de baja calidad y en condiciones tecnológicas poco favorables. La alta eficiencia en la utilización de la ICP puede lograrse en condiciones diferentes mediante la optimización del régimen tecnológico.

  11. Racionalidade e métodos: registro da prática clínica em pacientes de alto risco cardiovascular

    Directory of Open Access Journals (Sweden)

    Luiz Alberto Piva e Mattos

    2011-07-01

    Full Text Available FUNDAMENTO: Até o momento, nenhum registro brasileiro foi desenhado para documentar a prática clínica em relação ao atendimento de pacientes de alto risco cardiovascular em uma representativa e ampla amostra de centros investigadores, incluindo hospitais públicos e privados em âmbito nacional. Sendo assim, este estudo permitirá identificar os hiatos na incorporação de intervenções com benefício comprovado em nosso meio. OBJETIVO: Elaborar um registro dedicado à aferição da prática clínica brasileira no que se refere ao atendimento do paciente cardiovascular classificado como de alto risco. MÉTODOS: Estudo observacional do tipo registro, prospectivo, visando documentar a prática clínica atual aplicada a nível ambulatorial para pacientes de alto risco cardiovascular, classificados quando da presença de uma das variáveis: evidência de doença arterial coronariana, doença cerebrovascular, vascular periférica, em diabéticos ou não diabéticos; ou na presença de pelo menos três dos seguintes fatores de risco cardiovascular: hipertensão arterial sistêmica, tabagismo ativo, dislipidemia, idade superior a 70 anos, nefropatia crônica, história familiar de doença arterial coronariana e ou doença carotídea assintomática. Os pacientes serão coletados em 43 centros de todas as regiões brasileiras, incluindo hospitais públicos e privados, assim como em unidades básicas de atendimento a saúde, e revisados clinicamente até um ano após a inclusão. RESULTADOS: Os resultados serão apresentados um ano após o início da coleta (setembro de 2011, e consolidados, após a reunião da população e dos objetivos almejados posteriormente. CONCLUSÃO: A análise deste registro multicêntrico permitirá projetar uma perspectiva horizontal do tratamento dos pacientes acometidos da doença cardiovascular no Brasil.

  12. El tratamiento del Patrimonio Cultural desde una metodología arqueológica en obras de trazado lineal: la construcción de la autopista Santiago-Alto de Santo Domingo (Galicia) como ejemplo

    OpenAIRE

    Prieto-Martínez, M. Pilar; Blanco-Rotea, Rebeca; Aboal-Fernández, Roberto; Ayán Vila, Xurxo; Criado-Boado, Felipe

    2002-01-01

    [ES] Se presenta una síntesis del trabajo arqueológico de Seguimiento que está siendo llevado a cabo en las obras de la Autopista Santiago-Alto de Santo Domingo (de empresa constructora Dozón UTE). El trabajo arqueológico se inició en enero de 2001, y está previsto que sea finalizado a principios de 2003. Este trabajo forma parte del Plan de Corrección de Impacto Arqueológico de las obras. El tramo Santiago-Alto de Santo Domingo, de 36,600 km de longitud, ofrece un transepto muy significat...

  13. Usos e conflitos na APA do Pouso Alto (GO): uma abordagem sobre a percepção dos atores locais de Colinas do Sul e Cavalcante

    OpenAIRE

    Ferreira, Lara Cristine Gomes; Almeida, Maria Geralda de

    2014-01-01

    v. 8, n. 1, p.215-230, abr/2014. A Área de Proteção Ambiental – APA do Pouso Alto, criada no ano de 2001 no nordeste de Goiás, inserida na categoria de Unidade de Uso Sustentável, tem como objetivo principal a preservação dos recursos naturais aliada ao uso sustentável da área. Contudo, mesmo sendo a APA de suma importância em uma região que apresenta a maior área de Cerrado preservado em Goiás e com riquíssima biodiversidade, a criação e implantação dela passou e passa por grandes conflit...

  14. Saúde mental nos municípios do Alto Uruguai, RS, Brasil: um diagnóstico da reforma psiquiátrica

    OpenAIRE

    Consoli,Gelson Luiz; Hirdes,Alice; Costa,Juvenal Soares Dias da

    2009-01-01

    O presente estudo investigou as características dos cuidados em saúde mental nos municípios do Alto Uruguai, levando em conta as diretrizes do Sistema Único de Saúde (SUS) e da Reforma Psiquiátrica. Através de um instrumento estruturado, foram entrevistados 31 profissionais que atuam na rede de saúde pública. Os resultados apontam a centralização das ações no modelo de atendimento clínico, na medicalização dos sintomas, embora a totalidade dos municípios disponha de Programas de Saúde da Famí...

  15. Hybrid classification: the case of the acquisition procedure documentation within and ouside the Public Contracts information systems in Alto Adige Region

    Directory of Open Access Journals (Sweden)

    Francesca Delneri

    2017-05-01

    Full Text Available With reference to the acquisition procedures, the related documentation is created and managed mostly on the platform of the subcontracting institution, partly on the Alto Adige Public Sector Contracts information system. With a partial integration between this system and the platform made available by the Agenzia per i procedimenti e la vigilanza in materia di contratti pubblici di lavori, servizi e forniture, classification and filing information can be assigned to the documents coming from both platform, while the reunification of documents related to the same process is transferred to the preservation system as unique archive of the administration.

  16. Equidad distributiva del ingreso pesquero en la reserva de la biosfera Alto golfo de California y delta del Río Colorado en México

    Directory of Open Access Journals (Sweden)

    Carlos Israel VÁZQUEZ LEÓN

    2012-01-01

    Full Text Available Se analiza la distribución del ingreso y se estima el grado de equidad durante 1994 y 2002 en tres comunidades colindantes a la reserva de la biosfera alto golfo de California y delta del río Colorado (RBAGC: Puerto Peñasco, el Golfo de Santa Clara, en Sonora, y San Felipe, en Baja California. Se considera a la rbagc como política pública enfocada a la sustentabilidad en la región. Se concluye que hay diferencias entre los pescadores antes y después de la introducción del plan de manejo, y que la inequidad en el Golfo de Santa Clara ha aumentado, siendo esta comunidad la que se ubica dentro de la reserva y con mayor dependencia de la pesca.

  17. Determinantes dos altos deságios nos leilões de transmissão de energia elétrica no Brasil entre 1999-2010

    Directory of Open Access Journals (Sweden)

    Katia Rocha

    2013-06-01

    Full Text Available O artigo analisa os determinantes dos altos deságios nos leilões de transmissão de energia elétrica no Brasil entre 1999-2010 através de um modelo econométrico baseado em Heckman (1979 considerando a heterogeneidade entre os lances vencedores e perdedores, e a endogeneidade desta clivagem. A partir do conjunto total de lances, explicita-se a heterogeneidade entre os grupos e corrige-se o respectivo viés devido à endogeneidade desta classificação. O objeto de pesquisa se justifica uma vez que estudos que focam apenas nos lances vencedores e que ignoram a correção devido à endogeneidade da seleção do grupo vencedor podem conduzir a conclusões impróprias.

  18. La presenza di riviste Open Access ad alto fattore d'impatto nell'ambito della Scienza, della Tecnologia, dell'Ingegneria e della Medicina (STEM

    Directory of Open Access Journals (Sweden)

    Annarita Barbaro

    2015-09-01

    Full Text Available Il presente studio ha lo scopo di definire a quali servizi sono aperte le riviste ad accesso aperto di alta qualità, per la pubblicazione; esaminando la loro distribuione nella varie discipline scientifiche, tra cui la distribuzione di alcune riviste che non prevedono spese di perfezionamento degli articoli. Lo studio si basa su un confronto sistematico tra le riviste incluse nel DOAJ e le riviste indicizzate sul Journal Citation Reports (JCR Science edition 2013, pubblicato da Thomson Reuters. Il fattore di impatto delle riviste ad accesso aperto è inferiore a quello di altre riviste, in quantità minima, ma significativa. Le riviste ad accesso aperto sono presenti nel quartile più in alto (in base al fattore di impatto di 85 su 176 (48,8% delle categorie esaminate. Non sono presenti riviste ad accesso aperto con un fattore di impatto solo in 16 categorie (9%.

  19. Determinación de la sensibilidad a amoxicilina y a clindamicina de staphylococcus spp aislado de cavidad oral de pacientes con alto riesgo de endocarditis infecciosa

    Directory of Open Access Journals (Sweden)

    Silvia Barrientos

    2011-01-01

    Full Text Available En la literatura existen pocos estudios acerca de la distribución de Staphylococcus spp en boca y los que hay sobre estos microorganismos como residentes de la cavidad oral son controversiales.El género Staphylococcus spp conforma un importante grupo de patógenos en el ser humano y origina distintas enfermedades, entre ellas, la Endocarditis Infecciosa; de igual forma, la literatura reporta tasas de resistencia a amoxicilina y clindamicina antibióticos usados comúnmente para la profilaxis en odontología. Objetivo: Conocer la sensibilidad de Staphylococcus spp a amoxicilina y la clindamicina aislados de cavidad oral de pacientes con alto riesgo de Endocarditis Infecciosa.

  20. EVALUACIÓN EXPERIMENTAL DE UNIDADES SÍLICO-CALCÁREAS A PARTIR DE ESCORIA DE ALTO HORNO Y CAL HIDRÁULICA PARA MAMPOSTERÍA

    Directory of Open Access Journals (Sweden)

    NILSON ARIEL LEÓN

    2009-01-01

    Full Text Available El presente artículo estudia la posibilidad de fabricar elementos sílico-calcáreos para mampostería a partir de dos tipos de materias primas como son las escorias de Alto Horno y las cales hidráulicas. En el presente trabajo se evaluaron algunas propiedades físicas de las probetas fabricadas con los anteriores materiales con respecto a la Norma Técnica Colombiana, para 5 tipos de mezclas que varían entre 10 y 50 % de cal. Los resultados mostraron que es factible la fabricación de ladrillos sílico-calcáreos para mampostería que cumplen con la NTC 922.

  1. Efectos del mercado desregulado sobre los campesinos productores de café de Los Altos de Chiapas: el caso de UCIPA

    Directory of Open Access Journals (Sweden)

    Eliezer Fernando Pérez Pérez

    2018-01-01

    Full Text Available Se analizan las consecuencias del mercado desregulado sobre la producción y la comercialización del café de los campesinos agrupados en la Unión de Comunidades Indígenas de Producción Agrícola Santa Catarina Pantelhó (UCIPA, en la región Altos de Chiapas, quienes desde 2000, contra la lógica de las organizaciones de café orgánico, incursionaron en el mercado del café convencional. Se reflexiona sobre el presente y las perspectivas en una economía basada en la racionalidad neoliberal, sin regulación del Estado. Destacan las estrategias de los productores para sortear las dificultades de las relaciones de mercado y los efectos del cambio climático.

  2. LA CERÁMICA COMÚN DE MESA, COCINA Y DESPENSA EN EL ALTO DUERO DURANTE EL PERIODO BAJOIMPERIAL: UN ENSAYO DE CLASIFICACIÓN

    Directory of Open Access Journals (Sweden)

    Jesús Bermejo Tirado

    2011-10-01

    Full Text Available En este artículo hemos tratado de realizar una primera sistematización del estudio de la cerámicac omún y de despensa en la región del Alto Duero durante el Bajo Imperio (grosso modo mediados del siglo III d. C.– primeras décadas del V d. C.. Para ello establecemos una propuesta tipológica a partir de una serie de contextos cerámicos conocidos. Las categorías de clasificación obtenidas se basan en una metodología que incluye tres niveles interconectados de análisis: tecnología, funcionalidad y morfología.

  3. As Necrópoles alto-medievais da Serra de São Mamede (Concelhos de Castelo de Vide e Marvão)

    OpenAIRE

    Prata, Sara Maria Sena Esteves

    2012-01-01

    Dissertação apresentada para cumprimento dos requisitos necessários à obtenção do grau de Mestre em Arqueologia A presente dissertação trata questões da Arqueologia funerária para as necrópoles alto-medievais identificadas na Serra de São Mamede (Concelhos de Castelo de Vide e Marvão). Para esta área geográfica, a escassez de fontes escritas, associada ao parco conhecimento sobre as realidades arqueológicas, coloca os séculos que sucederam a queda da Império Romano no Ocidente e anteced...

  4. Sincronización del celo select-synch en vacas con alto y bajo mestizaje lechero, ubicadas en el llano central venezolano

    OpenAIRE

    Roa A., Noris; Linares, Tiburcio; D'Enjoy, D'Endel; Marín, Carlos

    2012-01-01

    Se aplico el protocolo de sincronización de celos Selectsynch a 39 vacas cíclicas con alto (AML n=25) y bajo mestizaje lechero (BML n=14), y dos tratamientos de suplementación alimenticia: suplementadas (AMLS: n=14; BMLS: n=6), sin suplementación (AMLNoS: n=11; BMLNoS: n=8), durante el período de sequía en el nororiente del Estado Guárico. La suplementación alimenticia consistió en el suministro de una ración con 70% de energía (melaza), 6% de suplemento mineral y 15% de proteína (cují verde)...

  5. Forma urbana e espaços livres nas cidades médias do triângulo mineiro e alto parnaíba

    Directory of Open Access Journals (Sweden)

    Glauco de Paula Cocozza

    2014-06-01

    Full Text Available This paper has as central topic the urban form study in main medium-sized cities of Triângulo Mineiro and Alto Paranaíba regions, in west of Minas Gerais State, with historic, urban, economic, and geographic specific characteristics, that determine particularities and similarities with the other parts of the State. This paper approach the methodology that has been used in the research project approved by Fundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG, and show some morphological analyses objects, encompassing spatial, environmental and social, with focus on open spaces system that had been configure through each city urban context.

  6. La empresarialidad informal como un reto de política económica: El caso de La Paz y El Alto, Bolivia

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    León Darío Parra Bernal

    2013-10-01

    Full Text Available En el presente caso de estudio se analiza la empresarialidad informal como un reto de política pública y económica. Para ello, se efectuaron 20 entrevistas en profundidad a microempresarios y comerciantes del sector informal en las ciudades de La Paz y El Alto, en Bolivia en 2010, y a 3 funcionarios públicos de instituciones de apoyo al fomento empresarial en el mismo país. La principal reflexión giró en torno al establecimiento de que los empresarios informales poseen un elevado nivel de influencia en la efectividad de las políticas públicas implementadas para su sector, así como en los mecanismos que se han utilizado en Bolivia para incluirlos en el proceso.

  7. Consideraciones sobre la producción de aceite en el alto Guadalquivir: el caso de Aurgi (Jaén

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    Serrano Peña, José Luis

    2004-12-01

    Full Text Available This paper is focus on one subject not very well considered up to now: the oil excedentary production in the Upper Guadalquivir valley at early imperial roman times economy. The romanisation of iberian society is shown in the adaptation of vegetable gardens production to dry lands. The reason of this change is based on the intention to introduce in the provincial market.La producción excedentaria de aceite en el Alto Guadalquivir se revela como una parte de la economía de la primera edad imperial que hasta ahora no había sido suficientemente considerada. La romanización de la sociedad ibérica se manifiesta en la adaptación de la producción de huerta al secano, con la intención de introducirse en el mercado.

  8. La droga, el contexto y el Estado. Jóvenes de estratos sociales medios y altos y su consumo “recreativo” en tres municipios de El Salvador

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    Augusto Rigoberto López Ramírez

    2013-08-01

    Full Text Available Se estudia a los jóvenes de estratos medios y altos y su consumo recreativo de drogas influido por factores de tipo estructural y cultural, abordando cuatro zonas de concentración de bares y discotecas en tres municipios importantes de El Salvador. El énfasis se hace en la generación del contexto para suplir la demanda del consumo de dicha población y las consecuencias que esto le significa a la sociedad. Se concluye con un llamado al Estado a que regule los espacios de interés social. DOI: http://dx.doi.org/10.5377/rpsp.v2i0.1194

  9. Cholera in the Portuguese Region of Alto Minho in the Second Half of the Nineteenth Century: Epidemic Outbreaks, Treatment and Behaviours

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    Alexandra Esteves

    2010-11-01

    Full Text Available The aim of our work is to analyse the impact of cholera outbreaks that took place in Alto Minho, a region in the North of Portugal, in a century in which, due to several developments, distances became shorter and people from different parts of the globe became closer, and thus explaining the spreading of a disease that manifests itself quickly and evolves rapidly. We also intend to evaluate the effect of the measures undertaken by administrative and sanitary authorities and to verify the alterations in the daily life of the affected communities as far as economic activities, organization, cleanness and hygiene in the public venue are concerned, emphasizing on the temporary suspension of the relations with the neighbouring region of Galiza equally affected by numerous cholera outbreaks.

  10. ANÁLISE MORFOLÓGICA DA REDE DE DRENAGEM DO ALTO JURUÁ/AC, EXTRAÍDA DE MDE-SRTM.

    OpenAIRE

    Maria Madalena Sousa; Wallace de Oliveira

    2017-01-01

    A caracterização da rede de drenagem utilizando variáveis como morfologia, propriedade e padrão auxiliam na identificação dos fatores de evolução da área. O uso dos dados e técnicas de Sensoriamento Remoto fornece ajuda significante em áreas com fisiografia complexa de difícil acesso como é o caso da Amazônia. Este trabalho consiste numa análise morfológica da rede de drenagem atual do Rio Juruá mais especificamente na região denominada Alto Juruá, no estado do Acre, utilizando imagens obtida...

  11. La inserción socioeconómica y territorial de los migrantes aymaras en la ciudad de El Alto, Bolivia

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    Mariela Paula Diaz

    2017-01-01

    Full Text Available En este artículo se analiza la apropiación del territorio de los migrantes aymaras –residentes en dos barrios de la ciudad de El Alto: El Porvenir I (periferia y 16 de Julio (centro– y su relación con la dinámica urbana y laboral. En el barrio periférico ocurre la configuración de territorios rururbanos, donde los migrantes empobrecidos mantienen un hilo de continuidad con sus comunidades. Para llevar a cabo esta investigación, se realizaron entrevistas semiestructuradas en profundidad a la población migrante y se aplicó una encuesta a miembros de 100 hogares en total. También se destaca la observación no participante de las actividades de la vida cotidiana.

  12. Determinantes estructurales y su relación con el índice de COP en países de desarrollo alto, mediano y bajo

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    Luis Carlos García Rincón

    2015-01-01

    Full Text Available Objetivo: describir y analizar los determinantes estructurales y su relación con el índice de COP en países de desarrollo alto, mediano y bajo durante las últimas tres décadas. Materiales y métodos: estudio descriptivo realizado a partir de una revisión de la literatura internacional y nacional en bases de datos y páginas web. Resultados: se encontró un país con índice de COP elevado; un país con índice de COP moderado; 10 países con índice de COP bajo; y 10 países con índice de COP muy bajo. Los países de desarrollo alto y los países de desarrollo bajo se comportan de manera similar en tanto reportan índices de COP inferiores al promedio mundial sugerido por la OMS (2.4. Discusión y conclusiones: se concluye que los valores de COP están asociados fuertemente a factores macroeconómicos, como las políticas y servicios de cuidado de la salud disponibles para la población, más que a la clasificación de desarrollo del Banco Mundial. Los determinantes sociales están directamente relacionados con las políticas estructurales que afectan el bienestar social, la salud y la calidad de vida de la población.

  13. Propiedades dieléctricas de láminas delgadas de (Pb,CaTiO3 con alto contenido de Ca

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    Calzada, M. L.

    2004-04-01

    Full Text Available Lead titanate thin films modified with calcium, Pb1-xCaxTiO3, with x>35%, have been deposited onto Pt/TiO2/SiO2/(100Si y Pt/(100MgO substrates, by the sol-gel method and a rapid thermal processing (RTP. Properties similar to the counterpart bulk ceramics are planned, such as the decrease of the phase transition temperature and the increase of permittivity at room temperature. Films with Ca content close to 40 % and 50% exhibit at room temperature, high enough permittivity with reduced temperature dependence and a C-V behaviour that make them of interest for DRAM and high frequency devices.Se han preparado láminas delgadas de titanato de plomo modificado con calcio, Pb1-xCaxTiO3, (PTCa con x>35%, depositadas sobre substratos de Pt/TiO2/SiO2/(100Si y Pt/(100MgO, empleando la técnica de sol-gel y un horno rápido de procesado (RTP. Se intenta obtener propiedades cercanas al material cerámico masivo, como son la bajada de la temperatura de la transición ferro-paraeléctrica y el aumento de la permitividad, ε´ a temperatura ambiente. Así, se consiguen láminas de contenido de Ca próximas al 40% y 50% con valores altos de permitividad, poco dependientes de la temperatura, que presentan un alto carácter difuso en la transición para temperaturas próxima a ambiente y un comportamiento de la capacidad con el voltaje, C-V,que las hacen de interés en la fabricación de DRAM y dispositivos para alta frecuencia.

  14. Flora briofítica da Reserva Biológica do Alto da Serra de Paranapiacaba, São Paulo: 1 - Lejeuneaceae (Hepaticopsida

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    Cristina Giancotti

    1989-01-01

    Full Text Available No levantamento de Lejeuneaceae (Hepaticopsida, na Reserva Biológica do Alto da Serra de Paranapiacaba, São Paulo, a partir de 1982, foi constatada a ocorrência de 14 gêneros e 20 espécies. Em contrapartida, pelo exame feito na coleção do herbário do Estado Maria Eneyda P. Kauffmann Fidalgo do Instituto de Botânica, da Secretaria do Meio Ambiente (SP e por citações bibliográficas, foi verificada a existência de 25 gêneros e 66 espécies entre as décadas de 1920-1960. A diminuição do número de espécies consideradas sensíveis, provavelmente deve-se à poluição emanada do Polo Industrial de Cubatão.During the survey of the Lejeuneaceae (Hepaticopsida of the Alto da Serra de Paranapiacaba Biological Reserve, State of São Paulo, carried out from 1962 up today, 14 genera and 20 species were recorded. However, the checking of all herbarium materials of Instituto de Botânica (SP and bibliographical references available led authors to the compilation of 25 genera and 66 species that were referred during the years 1920 to 1960. Such a significant dimimshing in the number of taxa, mostly represented by very sensitive species, is much probably due to the air pollution from Cubatão Industrial Complex.

  15. Predicción y simulación, mediante lógica difusa, de la temperatura de salida del arrabio en un horno alto

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    Romero, Miguel Angel

    2000-02-01

    Full Text Available This work describes the development and further validation of a model devoted to blast furnace hot metal temperature forecast, based on Fuzzy logic principles. The model employs as input variables, the control variables of an actual blast furnace: Blast volume, moisture, coal injection, oxygen addition, etc. and it yields as a result the hot metal temperature with a forecast horizon of forty minutes. As far as the variables used to develop the model have been obtained from data supplied by an actual blast furnace sensors, it is necessary to properly analyze and handle such data. Especial attention was paid to data temporal correlation, fitting by interpolation the different sampling rates. In the training stage of the model the ANFIS (Adaptive Neuro-Fuzzy Inference System and the Subtractive Clustering algorithms have been used.

    El presente artículo describe el desarrollo y posterior validación de un modelo para predecir la temperatura del arrabio de un horno alto, basado en lógica difusa. El modelo emplea, como variables de entrada, las variables de control propias del horno: caudal de viento, humedad, inyección de carbón, adición de oxígeno, etc. y obtiene, como resultado, el valor de la temperatura del arrabio producido por el horno, con un horizonte de predicción de 40 min. Las variables empleadas para el desarrollo del modelo se obtuvieron de los datos suministrados por lo sensores de un horno alto real. Fue preciso analizar y tratar adecuadamente dichos datos antes de introducirlos en el modelo. Se prestó especial atención a la correlación temporal de los datos adecuando mediante interpolación los distintos períodos de muestreo. El modelo se entrenó utilizando dos tipos de algoritmos: un sistema de inferencia neuro-difuso adaptativo (ANFIS y el Agrupamiento Sustractivo.

  16. Papel de la terapia con cánula nasal de alto flujo en la prevención de la reintubación en pacientes de bajo riesgos

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    Colinas Fernández, Laura

    2016-01-01

    La oxigenoterapia acondicionada de alto flujo demostró reducir la insuficiencia respiratoria post-extubación y la tasa de reintubación a las 72 horas en pacientes ventilados con bajo riesgo de reintubación. El principal beneficio de estos resultados se observó en el fracaso de la extubación por causa respiratoria.

  17. Privatización del agua y racismo ambiental en ciudades segregadas. La empresa Aguas del Illimani en las ciudades de La Paz y El Alto (1997-2005

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    Crespo Flores, Carlos O.

    2009-12-01

    Full Text Available Within the framework of environmental racism in the water sector, the water and sani - tation concession contract in the cities of La Paz and El Alto (Bolivia to Aguas del Illimani company, filial of Suez Group. Both cities are characterised as racially segregated spaces. The differentiated inclusion service policy of the company to neighbourhoods in La Paz and El Alto, particularly costs of connexion and tariffs, the exclusion of poor aymara zones and the environmental risks and impacts.

    Desde el concepto de racismo ambiental aplicado al sector agua, se analiza la concesión del servicio de agua y saneamiento en las ciudades de La Paz y El Alto a la empresa Aguas del Illimani (AISA, filial de la compañía francesa Suez. Ambas ciudades se caracterizan por ser socioeconómica y racialmente segregadas. Se muestra la política de inclusión diferenciada de la empresa respecto a las laderas de la ciudad de La Paz y El Alto, particularmente en los costos de conexión y tarifas del servicio, la exclusión de zonas pobres de aymaras migrantes, los impactos y riesgos ambientales.

  18. Serological survey of Leishmania infection in dogs from the municipality of Peso da Régua (Alto Douro, Portugal) using the direct agglutination test (DAT) and fast agglutination screening test (FAST)

    NARCIS (Netherlands)

    Cardoso, Luís; Schallig, Henk D. F. H.; Neto, Francisco; Kroon, Nel; Rodrigues, Manuela

    2004-01-01

    Leishmaniasis caused by Leishmania infantum is a prevalent disease in dogs and humans. A serological survey of Leishmania infection in dogs was carried out in the endemic region of Alto Douro (north Portugal). Two hundred and ninety-four dogs from the municipality of Peso da Régua were examined for

  19. Evolución del consumo de medicamentos de alto costo en Colombia Evolution of consumption of high-cost drugs in Colombia

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    Jorge Enrique Machado Alba

    2012-04-01

    Full Text Available OBJETIVO: Determinar el comportamiento del consumo de medicamentos de alto costo (MAC durante 2005-2010 en una población de pacientes colombianos afiliados al Sistema General de Seguridad Social en Salud. MÉTODOS: Estudio descriptivo observacional; se analizaron datos de prescripción de fórmulas dispensadas desde 2005 a 2010 a todos los usuarios (1 ;674 517 de algún medicamento considerado de alto costo en 20 ciudades de Colombia. Se consideró la clasificación anatómica terapéutica y el número de pacientes, así como la facturación mensual por cada medicamento, la dosis diaria definida y el costo por 1 000 habitantes/día. RESULTADOS: En todo el período de estudio, el valor facturado por MAC creció 847,4%. Los antineoplásicos e inmunomoduladores constituyeron 46,3% del total facturado, antinfecciosos 15,2%, preparaciones hormonales sistémicas 9,5% y fármacos para el sistema nervioso 9,1%. La mayoría de estos medicamentos fueron prescritos a las dosis diarias definidas recomendadas por la Organización Mundial de Salud, pero con altos costos por 1 000 habitantes y día. CONCLUSIONES: En Colombia durante los últimos años se ha presentado una crisis debida al elevado gasto generado por los medicamentos más costosos. El crecimiento progresivo del gasto farmacéutico es mayor que el aumento de la cobertura del sistema sanitario del país. El sistema sanitario colombiano debe evaluar cuánto está dispuesto a pagar por los medicamentos más costosos para algunas morbilidades y qué estrategias debe implementar para sufragar estos gastos y así garantizar el acceso a los asegurados.OBJECTIVE: Determine the patterns of consumption of high-cost drugs (HCD during the 2005-2010 period in a population of Colombian patients enrolled in the General System of Social Security in Health. METHODS: An observational descriptive study was conducted. The prescription data of formulas of any drug considered to be high-cost dispensed to all users (1

  20. Análisis del comportamiento de la demanda de turismo rural desde la experiencia de la comarca El Alto Palancia

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    Yagüe Perales, Rosa María

    2004-03-01

    Full Text Available This study is intended to delve into the tastes and preferences of tourists visiting rural areas in Spain as an alternative to the traditional sun and beach holiday that dominates Spanish tourism. This paper is focused on the demand side of rural tourism; more specifically the extent to which tourists visiting a Spanish rural area. El Alto Palancia region, exhibit different behaviours depending on age, gender, incomes and educational background. The homogeneity of behaviour across several categories of tourists was tested in two sets of variables. First, «interest in certain resources associated with rural tourism», focused on natural and architectural resources that sustains the tourist's attention. Second, a broad set of «activities that a tourist would like to practice in the region».

    [es] Ante la percepción de que existe una demanda de turismo no satisfecha con el modelo turístico tradicional español fundamentado en los destinos de litoral, resulta fundamental conocer la tipología de los turistas que visitan zonas rurales como paso previo para plantear una estrategia de desarrollo del turismo alternativo. En esta línea, y ante la escasez de estudios sobre la demanda, este artículo se plantea indagar en el comportamiento de la demanda ante una serie de recursos y actividades típicas de las áreas rurales, a partir de un estudio empírico desarrollado en la comarca de El Alto Palancia, en la Comunidad Valenciana. La aplicación de la técnica estadística del Contraste de Homogeneidad no paramétrico desvelará el perfil del turista interesado por los recursos y actividades proporcionados por la comarca. [fr] Devant la perception que il existe une demande de tourisme non satisfaite avec le modèle touristique traditionnel espagnol, fondé sur les destinations de littoral, il s'avère fondamental de connaître la typologie des touristes qui visitent des zones rurales comme une condition préalable pour designer une strat

  1. Simulación clínica de alto realismo: una experiencia en el pregrado Realistic clinical simulation: an experience with undergraduate medical students

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    Javier Riancho

    2012-06-01

    Full Text Available Introducción. La simulación con modelos de alto realismo se utiliza a menudo en la formación de los profesionales sanitarios. Sin embargo, son escasas las experiencias en el pregrado. El objetivo de este trabajo fue conocer la factibilidad y la aceptación de su aplicación con estudiantes de sexto curso de la licenciatura de Medicina. Materiales y métodos. Se diseñaron ocho escenarios que simulaban problemas clínicos frecuentes para su desarrollo con maniquíes de alto realismo. Los estudiantes se dividieron en grupos de 6-8 sujetos, cada uno de los cuales atendió dos casos durante 30 minutos. Posteriormente se llevó a cabo un análisis reflexivo durante 25-40 minutos. La actividad se repitió en dos años consecutivos. Al final se recabó la opinión de los estudiantes mediante encuestas anónimas. Resultados. La actividad fue valorada muy positivamente por los estudiantes, quienes la consideraron como "útil" (4,8 y 4,9 puntos sobre 5 e "interesante" (4,9 y 4,9 puntos. El tiempo preciso para preparar cada escenario fue de unas 3 horas. Fueron necesarias una jornada completa de un profesor, un técnico y un enfermero para que un colectivo de unos 40 estudiantes se expusiera a dos casos clínicos. Conclusiones. Esta experiencia piloto sugiere que la simulación de alto realismo es factible en el pregrado, supone un consumo razonable de recursos y tiene una elevada aceptación por parte de los estudiantes. No obstante, se necesitan otros estudios que confirmen la impresión subjetiva de que resulta útil para potenciar el aprendizaje de los alumnos y su competencia clínica.Introduction. Realistic clinical simulation is commonly used with physicians and other health professionals. However it has been rarely used with undergraduate students. The aim of this study was to explore its feasibility and acceptance with medical students. Materials and methods. Eight clinical scenarios representing common acute problems in medical practice were

  2. Detección molecular del virus papiloma humano de alto riesgo oncogénico en muestras cervicales. Laboratorio Central de Salud Pública. Primeros Resultados

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    Maria Liz Bobadilla

    2015-04-01

    Full Text Available El cáncer de cuello uterino es la primera causa de muerte por cáncer en mujeres en países en vías de desarrollo, con una tasa de incidencia de 34,2 por 100.000 mujeres y de mortalidad de 15,7 por 100.000 mujeres en Paraguay. La sensibilidad de la citología está entre 30-60%, mientras que la de la detección molecular del Virus Papiloma Humano (VPH en muestras cervicales, es mayor al 90% para detectar neoplasia intraepitelial cervical de grado 2 (CIN II o más. El objetivo de este trabajo fue describir la frecuencia de detección de VPH de alto riesgo (AR y su distribución por edad en mujeres que concurrieron al Hospital San Pablo, de mayo a agosto de 2.013. Se estudiaron 170 muestras cervicales de pacientes que accedieron a participar firmando un consentimiento informado. Se utilizó el sistema Cobas 4800 HPV Test (Roche que detecta los VPH-AR 16 y 18, y un pool de 10 VPH-AR (31,33,35,39,45,51,52,56,58,59 y dos de “probable” alto riesgo (66,68. La frecuencia de infección por VPH-AR fue del 16%, la infección decrecía con la edad y el mayor número de casos apareció en mujeres menores de 30 años. El VPH-16 fue encontrado en todos los grupos de edades. Este es el primer reporte de la detección de ADN de VPH-AR en el LCSP, y se muestra que la prevención y control del cáncer cérvico-uterino es una prioridad de salud pública en el país por la gran carga de la enfermedad evidenciada por su alta incidencia y mortalidad.

  3. Diseño de una formulación de ciclosporina A solución oral con alto grado de dispersión

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    Suslebys Salomón Izquierdo

    2013-03-01

    Full Text Available La ciclosporina A (CsA por sus propiedades inmunosupresoras es empleada en el transplante de órganos sólidos, médula ósea, así como para determinados estadíos de ciertas enfermedades autoinmunes. En Cuba, se comercializa una solución oral que presenta problemas de absorción gastrointestinal. Objetivos: lograr una microemulsión preconcentrada conteniendo ciclosporina A con alto grado de dispersión, igual o mayor que la formulación comercial. Métodos: se realizó un estudio de porcentajes de los emulgentes y el balance hidrófilo lipófilo (HLB, en los intervalos que permitieran obtener sistemas automicroemulsionables a través de un diseño factorial multinivel. Se empleó el porciento de transmitancia como variable de respuesta en la determinación del grado de dispersión de la formulación. También se realizó la evaluación de las características organolépticas de la formulación seleccionada, el estudio reológico, el conteo microbiano y la efectividad antimicrobiana. Resultados: los factores estudiados tienen influencia significativa sobre el porcentaje de transmitancia, la formulación con mayor grado de dispersión se logró empleando un 60 % de emulgentes junto a un HLB de 11,5 con valores de transmitancia de 95,03 %, significativamente mayor que el del producto líder en formato de cápsulas blandas que fue de 84,6 %. Organolépticamente el producto cumple con las características de líquido transparente, brillante y sin partículas en suspensión, con comportamiento Newtoniano desde el punto de vista reológico. El conteo de bacterias y hongos cumplió con los requisitos establecidos en la Farmacopea de los Estados Unidos para soluciones orales. Conclusiones: se logró una microemulsión preconcentrada de CsA en solución bebible con alto grado de dispersión, cumpliendo con los requisitos físicos y microbiológicos establecidos para este tipo de forma farmacéutica.

  4. LASEK con mitomicina C en altos defectos refractivos miópicos Use of LASEK with Mitomycin C to treat high myopic defects

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    Abel Cabrera Martínez

    2009-12-01

    Full Text Available OBJETIVO: Valorar los resultados refractivos en pacientes con altos defectos refractivos miópicos operados por queratomileusis subepitelial asistida con láser combinando el uso de mitomicina C (LASEK+MC. MÉTODOS: Se realizó un estudio prospectivo, de corte transversal en un total de 47 ojos. La muestra fue seleccionada del total de pacientes que acudió a nuestro -Servicio de Cirugía Implanto-refractiva. Teniendo en cuenta el consentimiento informado previo, se aplicó la técnica referida para la corrección de a ametropía, empleándose la mitomicina C de producción nacional al 0,02 % durante dos minutos en el transoperatorio. Para valorar los resultados del estudio se realizaron varios exámenes antes y después de operados los pacientes. RESULTADOS: Los resultados refractivos encontrados en los pacientes operados fueron muy alentadores, se logró corregir la totalidad de los defectos refractivos y se obtuvo una calidad visual muy favorable según test visuales realizados. Además, se obtuvo un índice de complicaciones muy bajo. CONCLUSIONES: La cirugía corneal con láser mediante LASEK+MC, demostró ser una técnica muy confiable y segura. Se obtuvo resultados refractivos muy alentadores, en pacientes con altos defectos refractivos miópicos, cuya calidad de vida, consecuentemente, fue muy superior.OBJECTIVE: To assess the refractive outcome in patients with high refractive myopic defects who were operated on by laser-assisted subepithelial keratomileusis plus Mitomycin C (LASEK + MC. METHODOS: A prospective cross-sectional study was performed in 47 eyes. The sample was selected from the whole number of patients who went to our Implant-Refractive Surgery Department. Taking into account their previous informed consent, the referred technique was used to correct ametropy by additionally using Cuban-made 0,02 % Mitomycin C for two minutes in the transoperative stage. To evaluate the outcome of the study, several tests were conducted

  5. Costo-efectividad de medios de contraste isoosmolales e hiposmolales en pacientes con alto riesgo de nefropatía inducida por medio de contraste

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    Liliana Alejandra Chicaíza-Becerra

    2012-06-01

    Full Text Available Introducción. Los medios de contraste pueden provocar falla renal aguda por toxicidad directa sobre las células tubulares e isquemia medular renal. Los pacientes diabéticos y los hospitalizados presentan mayor riesgo de desarrollar nefropatía inducida por medios de contraste que la población general. Objetivo. Establecer el costo-efectividad de los medios de contraste isosmolales e hiposmolales en pacientes con alto riesgo. Materiales and métodos. El análisis se basó en una revisión sistemática de la literatura científica, comparando los efectos nefrotóxicos de los medios isosmolales e hipoosmolales. Se consideraron sólo los costos directos, obtenidos del manual tarifario. Se calcularon las tasas del incremento del costoefectividad, las curvas de eficiencia y de aceptabilidad. Se hicieron análisis univariados de sensibilidad para costos y efectos, así como probabilísticos. Se aplicaron tasas de descuento de 0 y 3 % a losresultados. Se usó como umbral de costo-efectividad por año de vida ganado, el producto interno bruto per cápita. Resultados. Las alternativas con Iopamidol y Iodixanol dominan a las demás porque reducen el riesgo de nefropatía inducida por contraste a un menor costo. La razón del incremento del costo-efectividad del iodixanol comparado con el iopamidol es de US$ 14.660 por año de vida ganado que más que duplica el umbral. Conclusión. El medio de baja osmolalidad, iopamidol, parece ser costo-efectivo comparado con iohexol u otros medios hiposmolares (iopromide, iobitridol, iomeprol, iopentol y ioxilan, en pacientes con alto riesgo de nefropatía inducida por contraste. La elección del medio hiposmolar, depende de la disponibilidad a pagar o del costo por ampolleta.   doi: http://dx.doi.org/10.7705/biomedica.v32i2.367

  6. Defensive facilitation through serving in high level female volleyball LA FACILITACIÓN DEFENSIVA A TRAVÉS DEL SAQUE EN EL VOLEIBOL FEMENINO DE ALTO NIVEL

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    R. Calvo

    2010-09-01

    Full Text Available

    This study provides solutions for the trajectories election of the serve in female volleyball of high level. This element endows women performance with peculiarity in this sport, and, therefore it's one key in the evolution of the game.
    As a sample to the survey, they took the players of the Olympic Games of Atlanta in 1996, the last internationall volleyball competition of the highest importance. They were twelve female national teams, confronted in 42 matches, and distributed in 146 sets. 28 sets of female competition were used, they were singled out from 13 matches of which 1824 cases of serve change were recorded.
    The variables kept in mind are those that represent values related to the performance of the team that receives the serve, and those that describe the trajectories selected by the servers.
    KEY WORDS: Female volleyball, service, high performance, technique.

     

    El presente estudio aporta soluciones en cuanto a la elección de trayectorias del saque en el voleibol femenino de alto nivel, por tratarse del elemento que, prioritariamente, dota de peculiaridad el rendimiento de las mujeres en este deporte y, por tanto uno de los elementos claves en la evolución del juego.
    Se tomó como población objeto de estudio a las jugadoras de los Juegos Olímpicos de Atlanta en 1996, último acontecimiento de la máxima relevancia en el voleibol internacional. Un total de doce equipos nacionales femeninos, confrontados en 42 encuentros, distribuidos en 146 sets. Para seleccionar la muestra se recurrió a 28sets de la competición femenina, de entre 13 encuentros, de los que se registraron 1824 casos de cambio de saque.
    Las variables tenidas en cuenta son las que representan valores relacionados con el rendimiento del equipo que recibe el saque, y las que describen las trayectorias seleccionadas por las sacadoras.
    PALABRAS CLAVE

  7. Competitividad del sistema agroalimentario de la cebolla de bulbo con enfoque de cadena productiva en el Distrito de riego del Alto Chicamocha (Boyacá

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    Melo Ligia Ines

    2006-12-01

    Full Text Available

    El análisis de la competitividad plantea una pregunta lógica sobre los determinantes que la originan, percibida ésta como un objeto móvil y, por tanto, que debe ser comprendida en términos de su dinámica. Por su importancia, el presente artículo se orienta al análisis de la competitividad del sistema agroalimentario de la cebolla de bulbo en el Distrito de riego del Alto Chicamocha (Boyacá, bajo el enfoque de cadena productiva, haciendo énfasis en los eslabones de producción y comercialización en el nivel micro, en el que los factores para tener en cuenta son: la capacidad de gestión de las agroempresas y de las organizaciones integradas por ellas, las estrategias empresariales, la gestión y la innovación, el desarrollo de la cadena productiva, la cooperación tecnológica, la logística empresarial y la integración de los actores. Como complemento a estos factores se incluyen dos más como determinantes de competitividad, el talento humano y el producto. El análisis comparativo del estudio con el Distrito de riego de Samacá permite concluir que el sistema agroalimentario de la cebolla de bulbo en el Distrito de riego del Alto Chicamocha presenta fortalezas en áreas de siembra, rendimientos por hectárea, apoyo de diferentes instituciones, distribución del producto a nivel de país, mientras que las debilidades se centran en gestión empresarial, asociatividad  e integración de actores.

  8. Interpolation of GPS and Geological Data Using InSAR Deformation Maps: Method and Application to Land Subsidence in the Alto Guadalentín Aquifer (SE Spain

    Directory of Open Access Journals (Sweden)

    Marta Béjar-Pizarro

    2016-11-01

    Full Text Available Land subsidence resulting from groundwater extractions is a global phenomenon adversely affecting many regions worldwide. Understanding the governing processes and mitigating associated hazards require knowing the spatial distribution of the implicated factors (piezometric levels, lithology, ground deformation, usually only known at discrete locations. Here, we propose a methodology based on the Kriging with External Drift (KED approach to interpolate sparse point measurements of variables influencing land subsidence using high density InSAR measurements. In our study, located in the Alto Guadalentín basin, SE Spain, these variables are GPS vertical velocities and the thickness of compressible soils. First, we estimate InSAR and GPS rates of subsidence covering the periods 2003–2010 and 2004–2013, respectively. Then, we apply the KED method to the discrete variables. The resulting continuous GPS velocity map shows maximum subsidence rates of 13 cm/year in the center of the basin, in agreement with previous studies. The compressible deposits thickness map is significantly improved. We also test the coherence of Sentinel-1 data in the study region and evaluate the applicability of this methodology with the new satellite, which will improve the monitoring of aquifer-related subsidence and the mapping of variables governing this phenomenon.

  9. Comparación de las propiedades del concreto utilizando escoria de alto horno como reemplazo parcial y total del cemento Pórtland ordinario

    Directory of Open Access Journals (Sweden)

    I. Escalante

    2008-06-01

    Full Text Available Se realizó una investigación con dos tipos de concreto siguiendo la norma ACI 211.1: a concretos sustituidos al 30, 50 y 70 % con escoria de alto horno (EAH y b concretos 100 % EAH activada con 4, 6 y 8 % de óxido de sodio (Na2O en forma de silicato de sodio de módulo 2.0. Todos los sistemas se caracterizaron mecánicamente de 1 a 28 días. Se utilizó microscopía electrónica de barrido y espectroscopía por dispersión de energía para analizar la microestructura, grado de avance de la reacción y productos formados. La sustitución parcial del cemento Pórtland (CPO por EAH no fue benéfica para las propiedades mecánicas, contrario a la sustitución total por EAH activada, la cual resultó en propiedades mecánicas superiores que las de concretos de puro CPO. La activación de la escoria con 8 % de Na2O resultó más efectiva, seguido de 6 y 4 % de Na2O.

  10. Modelo estadístico en series temporales para la predicción de la temperatura de gas de tragante del horno alto

    Directory of Open Access Journals (Sweden)

    Martínez, A.

    1995-08-01

    Full Text Available This work, through techniques seldom used in the ironmaking field, establishes a criterion to define the behaviour along the time of significant operating variables of the blast furnace. A time series autoregressive model has been developed, achieving with it an adequate forecasting level. The methodology used has been the Yule-Walker equations to establish the model, the Akaike test to choose the best one and the autocorrelation function analysis to check it.

    En el presente trabajo, a través de técnicas poco usadas en el campo siderúrgico, se establece un criterio para definir el comportamiento en el tiempo de variables de operación significativas del homo alto. Para ello, se ha desarrollado un modelo autorregresivo en series temporales que permite una adecuada predicción. La metodología ha consistido en utilizar las ecuaciones de Yule-Walker y el test de Akaike para establecer y elegir el mejor modelo, y el análisis de la función de autocorrelación para comprobarlo.

  11. RELACIÓN ENTRE LA BIOMASA Y ALGUNAS CARACTERÍSTICAS MORFOLÓGICAS DE LAS BROMELIAS FITOTELMATAS DE UN BOSQUE ALTO ANDINO COLOMBIANO

    Directory of Open Access Journals (Sweden)

    Isaza Carolina

    2009-06-01

    Full Text Available Se evaluaron algunas características morfológicas para seis especies de bromelias fitotelmata (Guzmania gloriosa, Racinaea tetrantha, Tillandsia biflora, T. complanata, T. fendleri y T. turneri con el fin de establecer cuales características podrían utilizarse como estimadores indirectos de la biomasa total de la planta. El estudio se realizó en un bosque alto andino de la Sabana de Bogotá, Colombia, ubicado a 2900 m de altitud. Para cada especie se recolectaron entre 32 y 64 individuos en diferentes estadios de crecimiento, a cada uno de los cuales se le registró: 1 el número de hojas por roseta; 2 el perímetro de la base de la roseta; 3 la cobertura de la planta; 4 el largo de la lámina foliar; 5 la altura de la roseta; y 6 la biomasa total. Los resultados de la prueba Wilcoxon muestran que la cobertura fue la variable que más se relacionó con la biomasa. Una prueba de ajuste de curva mostró que la línea recta es la que más explica la relación entre la cobertura y la biomasa, permitiendo hacer estimaciones a partir de la ecuación sin ser necesario un muestreo destructivo.

  12. La migración desde la mirada de los empleadores de una agroindustria de los Altos de Jalisco, México

    Directory of Open Access Journals (Sweden)

    María de la Luz Pérez Padilla

    2014-01-01

    Full Text Available En los Altos de Jalisco, México, la migra- ción y la actividad agropecuaria son acti- vidades tradicionales con impacto econó- mico y social en la cotidianidad. Por ello se llevó a cabo un estudio cualitativo so- bre la percepción y experiencia de nueve empleadores de una empresa agroindus- trial respecto al fenómeno migratorio en la región, así como los costos y benefi cios que asocian al mismo. Los empleadores observan la disminución de emigrantes y el aumento de deportados. Identifi can un aumento de mujeres e hijos jóvenes ingre- sando a trabajar en la empresa. Como im- pacto negativo destacan: difi cultades de adaptación de los retornados, adquisición de costumbres diferentes, distanciamien- to o abandono familiar y falta de envío de remesas. Aprecian el desarrollo de nuevas cualidades y mayores exigencias hacia la empresa en los trabajadores migrantes de retorno.

  13. Groundwater and Subsidence Modeling Combining Geological and Multi-Satellite SAR Data over the Alto Guadalentín Aquifer (SE Spain

    Directory of Open Access Journals (Sweden)

    Pablo Ezquerro

    2017-01-01

    Full Text Available In the current context of climate change, improving groundwater monitoring and management is an important issue for human communities in arid environments. The exploitation of groundwater resources can trigger land subsidence producing damage in urban structures and infrastructures. Alto Guadalentín aquifer system in SE Spain has been exploited since 1960 producing an average piezometric level drop of 150 m. This work presents a groundwater model that reproduces groundwater evolution during 52 years with an average error below 10%. The geometry of the model was improved introducing a layer of less permeable and deformable soft soils derived from InSAR deformation and borehole data. The resulting aquifer system history of the piezometric level has been compared with ENVISAT deformation data to calculate a first-order relationship between groundwater changes, soft soil thickness, and surface deformation. This relationship has been validated with the displacement data from ERS and Cosmo-SkyMed satellites. The resulting regression function is then used as an empirical subsidence model to estimate a first approximation of the deformation of the aquifer system since the beginning of the groundwater extraction, reaching 1 to 5.5 m in 52 years. These rough estimations highlight the limitations of the proposed empirical model, requiring the implementation of a coupled hydrogeomechanical model.

  14. Cultural heritage policy. The Alto Douro wine region - World Herita-ge Site. Is there an argument for reinforcing the role of the state?

    Directory of Open Access Journals (Sweden)

    Lourenço, Lina

    2006-01-01

    Full Text Available In this paper we trace the emergence of a specific case of cultural policy: the example chosen is a UNESCO World Heritage site, namely the Alto Douro Wine Region (ADW a portuguese living and evolving cultural landscape. In order to contextualize the particularities of the means that have been adopted for the management of the ADW, we use Throsby’s (2001 typology of most commonly-used cultural heritage policy instruments. Additionally we draw on the arguments that are frequently used to support public intervention in this sphere. We conclude that ADW’s management policy should: 1 use binding agreements to operational-ize a range of measures that compensate farmers who become providers of cultural products; 2 strengthen education and information so as to promote greater physical access and personal appreciation of the ADW’s cultural goods and services; and 3 formulate an integrated set of social policies able to mitigate the negative socio-demographic trends that characterize the region and its population

  15. Metal temperature monitoring in corrosive gases at high temperature and high thermal flows; Monitoreo de temperaturas de metal en gases corrosivos a alta temperatura y altos flujos termicos

    Energy Technology Data Exchange (ETDEWEB)

    Huerta Espino, Mario; Martinez Flores, Marco Antonio; Martinez Villafane, Alberto; Porcayo Calderon, Jesus; Gomez Guzman, Roberto; Reyes Cervantes, Fernando [Instituto de Investigaciones Electricas, Cuernavaca (Mexico)

    1990-12-31

    The direct measurement of metal temperatures during operation in superheater, reheater, and water wall tubes in zones exposed to high thermal flows is of great interest for the operation and analysis of the correct functioning of a steam generator. The operation temperature measurement of these zones differs very much of the monitored temperature in headers in the dead chamber, since the temperature measured in this zone is the steam temperature that does not reflect the one detected in the gas zone. For this reason, the thermocouples implant in gas zones will detect the real metal temperature and the incidence that some operation variables might have on it (Martinez et al., (1990). [Espanol] La medicion directa de temperaturas de metal durante operacion en tubos de sobrecalentador, recalentador y pared de agua en zonas expuestas a altos flujos termicos es de gran interes para la operacion y analisis del buen funcionamiento de un generador de vapor. La medicion de la temperatura de operacion de estas zonas, difiere mucho de la temperatura monitoreada en cabezales en zona de camara muerta, ya que la temperatura registrada en esta zona es la de vapor que no es un reflejo de la detectada en zona de gases. Por esta razon, la implantacion de termopares en zona de gases detectara la temperatura de metal real y la incidencia que algunas variables de operacion tengan sobre esta (Martinez et al., 1990).

  16. Desenvolvimento e análise de compósitos cimentícios híbridos de alto desempenho

    Directory of Open Access Journals (Sweden)

    V. J. Ferrari

    Full Text Available Neste trabalho, estudou-se o efeito da hibridização em compósitos cimentícios numa tentativa de modificar o material em sua microestrutura e melhorar o processo de transferência de tensões da matriz cimentícia para as fibras de aço. Para tanto, fibras curtas e microfibras de aço foram adicionadas a uma matriz cimentícia de argamassa para confecção de corpos-de-prova prismáticos entalhados e com dimensões de 150 mm x 150 mm x 500 mm. Os corpos-de-prova foram submetidos a ensaios de flexão com carga no meio do vão sob o controle dos deslocamentos de abertura da entrada do entalhe (CMOD. O desempenho dos compósitos híbridos foi comparado ao dos compósitos produzidos somente com a adição da fibra curta de aço e também ao da matriz sem fibras. Os resultados foram analisados considerando-se os parâmetros de tenacidade flexional e tenacidade ao fraturamento do material. O processo de hibridização permitiu obter compósitos de alto desempenho.

  17. Los aborígenes colombianos y las paradojas del desarrollo: el caso de los emberá katíos del Alto Sinú

    Directory of Open Access Journals (Sweden)

    Ana Milena Martínez Triviño

    2013-01-01

    Full Text Available En 1992 se inicia la construcción la hidroeléctrica Urrá I, uno de los proyectos energéticos más ambiciosos en la historia reciente de Colombia. Ubicada en la inhóspita y selvática región del Alto Sinú –noroccidente del territorio andino–, la licencia ambiental otorgada por las entidades gubernamentales soslayaron los im - pactos ecológicos y ambientales que la obra acarrearía, como también desconocieron la presencia del pueblo aborigen emberá katío, cuyos derechos constitucionales fueron vulnerados. Siguiendo los argumentos expuestos por el economista Karl Polanyi, el artículo explora las consecuencias ambientales, sociales y culturales provocadas por el proyecto energético, además de ahondar en la estrategia de violencia y exterminio que el paramilitarismo configuró para desarticular los procesos organizativos de los emberá katíos, lo que implicó la desaparición y asesinato de los dirigentes y líderes indígenas.

  18. Metal temperature monitoring in corrosive gases at high temperature and high thermal flows; Monitoreo de temperaturas de metal en gases corrosivos a alta temperatura y altos flujos termicos

    Energy Technology Data Exchange (ETDEWEB)

    Huerta Espino, Mario; Martinez Flores, Marco Antonio; Martinez Villafane, Alberto; Porcayo Calderon, Jesus; Gomez Guzman, Roberto; Reyes Cervantes, Fernando [Instituto de Investigaciones Electricas, Cuernavaca (Mexico)

    1991-12-31

    The direct measurement of metal temperatures during operation in superheater, reheater, and water wall tubes in zones exposed to high thermal flows is of great interest for the operation and analysis of the correct functioning of a steam generator. The operation temperature measurement of these zones differs very much of the monitored temperature in headers in the dead chamber, since the temperature measured in this zone is the steam temperature that does not reflect the one detected in the gas zone. For this reason, the thermocouples implant in gas zones will detect the real metal temperature and the incidence that some operation variables might have on it (Martinez et al., (1990). [Espanol] La medicion directa de temperaturas de metal durante operacion en tubos de sobrecalentador, recalentador y pared de agua en zonas expuestas a altos flujos termicos es de gran interes para la operacion y analisis del buen funcionamiento de un generador de vapor. La medicion de la temperatura de operacion de estas zonas, difiere mucho de la temperatura monitoreada en cabezales en zona de camara muerta, ya que la temperatura registrada en esta zona es la de vapor que no es un reflejo de la detectada en zona de gases. Por esta razon, la implantacion de termopares en zona de gases detectara la temperatura de metal real y la incidencia que algunas variables de operacion tengan sobre esta (Martinez et al., 1990).

  19. Floristic survey of the herbaceous-shrub layer of a gallery forest in Alto Paraíso de Goiás - GO, Brazil

    Directory of Open Access Journals (Sweden)

    Eduardo Chaves

    2012-10-01

    Full Text Available Flowering species of the herbaceous and shrubby layer were sampled in a gallery forest at Portal da Chapada, Alto Paraíso de Goiás-GO in the Chapada dos Veadeiros during 12 months growing within 4.5 meters on either side of a raised pathway 2.4 Km long. The collections were included to University of Brasilia Herbarium (UB. A total of 138 species (103 genera and 40 families were recorded; the most species-rich families were Asteraceae (22, Poaceae (14, Rubiaceae (12, Fabaceae (11 and Melastomataceae (7. The richest family in number of genera was Asteraceae (19, followed by Poaceae (8, Fabaceae (8 and Rubiaceae (7. The results showed a meaningful increase in the Chapada dos Veadeiros flora, especially considering the herbaceous-shrubby layer of the gallery forests (223.6%. Despite the richness of the flora, the number of endemics species in the Goiás State was only 1.5%.

  20. Efecto de la desestabilización de la cementita sobre el desarrollo de altos niveles de resistencia mecánica en aceros perlíticos

    Directory of Open Access Journals (Sweden)

    Mykhaylo Romanyuk

    2016-01-01

    Full Text Available Se estudió la deformación en aceros de alto contenido de carbono trefilados en frío, sobre el comportamiento mecánico y de fractura. La deformación promueve fenómenos de disolución de la cementita en la perlita, alcanzando alta resistencia y ductilidad, lo que permite aplicarlos en usos críticos como cables de grúas. Para estudiar el comportamiento mecánico y a la fractura, se estudian muestras de dos alambres sometidas a torsión hasta rotura. Estos presentan distinto comportamiento: uno sufrió fractura plana (normal y otro fractura delaminada. Se efectúa un estudio estructural mediante microscopía óptica y electrónica de barrido. Los resultados obtenidos muestran la presencia del fenómeno de rizado (curling. Además, se realizan ensayos de análisis térmico diferencial y simulación termodinámica aplicando Fact Sage, para analizar la estabilidad de carburos. Se corroboró la precipitación de carburos épsilon que ocurre por difusión de carbono en la interfaz ferrita-perlita, justificando el incremento de la resistencia mecánica.

  1. Short- and long-term monitoring of radon, thoron and carbon dioxide in soil-gas at Altos de pipe, Venezuela

    International Nuclear Information System (INIS)

    LaBrecque, J.J.; Cordoves, P.R.

    2004-01-01

    Radon and thoron activities in soil-gases have been measured since July 9, 1997 Cariaco earthquake (Mw=6.9) until the end of 2000. Carbon dioxide concentrations were also monitored between 1998-2000. The soil-gas was collected between 50-55 cm depths at two sampling points at Altos de pipe (Instituto Venezolano de Investigaciones Cientificas-IVIC) near Caracas, Venezuela. The radon and thoron measurements were performed daily employing radiation monitors with scintillation cells and the carbon dioxide was monitored with portable gas analyzers. Average weekly and monthly values were calculated and plotted for this three-four year period. In general, both the radon and carbon dioxide values showed sinusoidal trends due to seasonal changes. During the dry season the radon and carbon dioxide values decreased, while the radon activity was relative constant (flat) during the rainy season at one of the sampling points. Only two monthly radon values were seen to be anomalous in the graphs in respect to seven anomalous periods for the average weekly values. No anomalous periods were clearly seen for carbon dioxide. Finally, it was difficult to try to relate these radon anomalous periods with specific earthquakes due to the large number of minor earthquakes during these years, but it seem that the minor earthquake (Mb=5.9) of October 4, 2000 could be associated with the radon anomalous period in September, when there were no other minor earthquakes (Mb≥4.0). (author)

  2. Variabilidad de la frecuencia cardíaca y perfiles psicofisiológicos en deportes de equipo de alto rendimiento

    Directory of Open Access Journals (Sweden)

    Jordi Moreno S\\u00E1nchez

    2013-01-01

    Full Text Available En el presente trabajo se plantean dos objetivos, llevados a cabo en dos estudios diferentes. En primer lugar, se pretende analizar la utilidad del análisis de la Variabilidad de la Frecuencia Cardíaca (VFC dentro del contexto de los deportes de equipo de alto rendimiento. Por otra parte, se pretende analizar la VFC en base a los perfiles de estado de ánimo evaluados con el POMS. Para el primer estudio se seleccionaron 53 deportistas de 3 deportes de equipo de élite diferentes: baloncesto, hockey hierba y fútbol. Para el segundo estudio la muestra la formaron 18 futbolistas de élite, divididos en dos grupos: perfil iceberg y estado de ánimo alterado. Los resultados muestran que los futbolistas presentan un perfil de VFC diferente a los jugadores de baloncesto o hockey hierba, que muestran un perfil de VFC bastante parecido. En los futbolistas con perfil iceberg, el factor de Vigor correlaciona negativamente con los parámetros LF/HF y %LF, y positivamente con el parámetro HF%. En los futbolistas con estado de ánimo alterado, el factor de Fatiga correlaciona negativamente con los parámetros pNN50 y HF. Los resultados permiten profundizar en el estudio de la VFC en deportes de equipo para adaptar mejor los seguimientos, así como obtener indicadores de estado de ánimo relacionados con la VFC.

  3. Migración en tiempos de crisis: Exploraciones del concepto de resiliencia social transnacional en Apaseo el Alto, Guanajuato, México

    Directory of Open Access Journals (Sweden)

    Ana Vila Freyer

    Full Text Available Resumen Este trabajo busca explorar la viabilidad de utilizar el concepto de Resiliencia Social en un contexto trasnacional como el que se construye cotidianamente con la migración mexicana a los Estados Unidos. Se enfoca especialmente en la dinámica vivida por las familias migrantes guanajuatenses, desde el inicio del siglo XXI. Para ello destacamos los procesos de adaptación y transformación al entorno creado por los cambios del sistema migratorio emprendidos en los Estados Unidos. El objetivo del trabajo es explicar cómo, dentro de un proceso histórico de larga duración, los migrantes transforman su vida adaptándose de un espacio local, a uno transnacional. Concluye considerando la importancia de estudiar la dinámica migratoria desde una perspectiva adaptativa individual y familiar utilizando un trabajo exploratorio realizado en Apaseo el Alto, Guanajuato, con lo cual creemos se abre una interesante veta de investigación para la realización de futuros trabajos.

  4. A crise dos negócios do diamante e as respostas dos homens de fortuna no Alto Jequitinhonha, décadas de 1870-1890

    Directory of Open Access Journals (Sweden)

    Marcos Lobato Martins

    2008-09-01

    Full Text Available Este trabalho aborda a crise da mineração em Diamantina no período 1870-1890 e os impactos que ela gerou sobre os negócios dos grandes mineradores e negociantes de diamante. A ênfase recai sobre a trajetória regional da indústria de lapidação, que representou tentativa de agregar valor às gemas extraídas nas lavras do Alto Jequitinhonha. Também são analisados os investimentos que os homens de fortuna fizeram em firmas comerciais e industriais (principalmente fábricas de tecidos e os projetos de desenvolvimento regional elaborados por empresários diamantinenses neste período. O trabalho utiliza fontes locais diversas como inventários, processos de falências, contratos, jornais, discursos e panfletos políticos.This paper examines the mining crisis in Diamantina between 1870 and 1890 and the consequences it produced on the great miners and diamond dealer's business. It enphazises the regional trajectory of the lapidary industry, that represented an attempt to aggregate value to the gemstones mined in the Upper-Jequitinhonha. The paper also analyses the investments carried out by the businessmen in commercial and industrial partnerships (especially fabric factories, as well as the regional development projects fostered by Diamantina's entrepreneurs in the period. This paper utilizes several local sources like inventories, liquidations processes, contracts, newspapers, political speeches and political pamphlets.

  5. Una experiencia singular: el proceso de reconversión de los deportistas de alto rendimiento en Francia en esgrima y tenis de mesa

    Directory of Open Access Journals (Sweden)

    Sophie Javerlhiac

    2010-01-01

    Full Text Available El presente trabajo muestra las dificultades con las que se encuentran los Deportistas de Alto Rendimiento (DAR a la hora de poder compaginar sus carreras deportivas con su formación académica y profesional. Para ilustrar esta realidad, se ha analizado la situación de nueve DAR franceses en esgrima y tenis de mesa. Los resultados muestran cómo existen diferencias significativas entre los DAR de ambos deportes. Por un lado, los tiradores de esgrima compatibilizan la práctica deportiva con su formación, ya que son conscientes de la necesidad de desarrollarse profesionalmente una vez finalizada su carrera deportiva. Esta situación es favorecida, principalmente, por la federación y por el ejemplo de otros deportistas. Por el contrario, los jugadores de tenis de mesa siguen un modelo monodeportivo, el cual se focaliza desde muy temprano en la práctica deportiva y deja a un lado la formación. Tanto la federación, los técnicos como los propios compañeros de equipo crean un ambiente en donde "salirse de la norma" implica un rechazo. Esta situación es analizada detenidamente.

  6. El patrimonio industrial en la estimulación del desarrollo: Intervenciones y revitalización urbana en Lota Alto (1997-2000

    Directory of Open Access Journals (Sweden)

    Leonel Pérez Bustamante

    2004-11-01

    El Plan de reconversión productiva de la ciudad minera de Lota, aunque marginalmente, está realizando un esfuerzo en este sentido una vez que la explotación minera del carbón ha finalizado después de haber sido el principal sector económico. Dos de sus proyectos, la Restauración de los viejos pabellones de vivienda del conjunto de Lota Alto y el circuito turístico patrimonial, están siendo relevantes tanto para la recuperación del patrimonio minero-industrial de la ciudad como para su reactivación económica, especialmente mediante la actividad del turismo patrimonial. Su puesta en marcha indica un modesto pero alentador interés por este tema y señala un importante precedente en un país de vocación minera como Chile.

  7. El aporte de la teoría fundamentada al estudio de la culpa en estafadores clasificados como altos y bajos en psicopatía

    Directory of Open Access Journals (Sweden)

    Benjamín Reyes Fernández

    2011-01-01

    Full Text Available Se plantea como problema de investigación: ¿cómo se relacionan cogniciones como la atribución causal y el sentido de los demás con la experiencia de culpa? Además, se reflexiona sobre qué es la Teoría Fundamentada y cómo contribuye a abordar el problema de investigación. Se entrevistaron 10 sujetos privados de libertad en Costa Rica por delito de estafa.. Se aplica la Lista de Chequeo de la Psicopatía a 34 privados de libertad. A aquellos con los puntajes más altos y más bajos se les realiza una entrevista. Las respuestas son analizadas según la versión straussiana de la Teoría Fundamentada. Se encuentran categorías novedosas que aparecieron a partir de los datos. Cuando se compara la presencia de éstas según los puntajes de psicopatía, se encuentra que la culpa se asocia con un locus más interno y controlable, y con un sentido de los demás que enfatiza los aspectos morales de las personas y sus situaciones.

  8. El contexto urbano y las interacciones sociales: dualidad del espacio de actividades de sectores de ingresos altos y bajos en Concepción, Chile

    Directory of Open Access Journals (Sweden)

    Claudia García

    2014-09-01

    Full Text Available Este trabajo busca abordar la relación entre el contexto urbano y las interacciones entre las personas, identificando las dimensiones sociales y espaciales de esa relación, las que son enfocadas en dos niveles de análisis: el barrio, como base de los hogares de la muestra estudiada; y el individuo, en el contexto de sus redes sociales personales. Este análisis se hace a partir de casos de estudio individuales. La investigación se basa en un marco teórico interdisciplinar y en datos empíricos recogidos en Concepción, Chile· Los resultados sugieren la existencia de un espacio de actividades delimitado por los lugares donde los individuos desarrollan sus actividades sociales cotidianas, su entorno cercano. A ello se suma el espacio de movimiento que se conforma por la ruta o trayecto entre el hogar y trabajo de los individuos, y los lugares de interacción social con sus redes personales. Los análisis revelan la dualidad existente entre el espacio de actividades de sectores de ingresos altos y el de sectores de bajos ingresos, sugiriendo que la integración socioespacial y problemas concomitantes tiene ribetes más complejos y multidimensionales que los generalmente abordados en la literatura.

  9. ANÁLISE MORFOLÓGICA DA REDE DE DRENAGEM DO ALTO JURUÁ/AC, EXTRAÍDA DE MDE-SRTM.

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    Maria Madalena Sousa

    2017-03-01

    Full Text Available A caracterização da rede de drenagem utilizando variáveis como morfologia, propriedade e padrão auxiliam na identificação dos fatores de evolução da área. O uso dos dados e técnicas de Sensoriamento Remoto fornece ajuda significante em áreas com fisiografia complexa de difícil acesso como é o caso da Amazônia. Este trabalho consiste numa análise morfológica da rede de drenagem atual do Rio Juruá mais especificamente na região denominada Alto Juruá, no estado do Acre, utilizando imagens obtidas do MDE –SRTM. A análise mostra que o rio Juruá apresenta fortes evidências de feições tectônica afetando a paisagem, isto é revelado pelas seguintes características encontradas: lineamentos morfoestruturais coincidindo com a orientação geral das falhas, predomínio de padrões de drenagem variáveis, incluindo treliça, paralelas e retangular, abundância de anomalias nas drenagem tanto atuais quanto pretéritas, incluindo desvios de drenagem em ângulos retos e canais retilíneos.

  10. Analysis of group and financial evaluation of productive units of bulb onion (Allium cepa L. in the District of Irrigation of Alto Chicamocha (Boyacá-Colombia

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    Nancy Cristina Sanabria Neira

    2014-05-01

    Full Text Available In Colombia the cultivation of bulb onion (Allium cepa L is a major generator of incomes and handwork for small growers in the departments of Boyacá, Nariño and Cundinamarca. Its production is 320,000 t year-1, of which 185,000 t (58 % are produced by the department of Boyacá, becoming the first producer at national level. The Irrigation District of the Alto Chicamocha (Drach produces between 35,000 to 40,000 t, i.e. 12.5 % of the national volume and 21.62 % of the departmental one, this productive line is most relevant in the influence area of the district and it is the main source of income and employment both direct and indirect. It was used the methodology of group analysis to develop the general objective of this research to determine the profitability in the different units; information was collected on primary sources such as: social relations, cost structures, aspects of technical and administrative management, as well as the productivity gained. It was found three groups of profitability of the different units: head, medium and tail. It was concluded that the production costs of the onion bulb are classified in explicit (handwork,inputs, services, and others and implicit (family work, lease, depreciation and capital income. It is proposed to the owners of the production units of the cola group, the optimization of irrigation, the appropriate use of agrochemicals and the implementation of appropriate cultural practices.

  11. El desarrollo de aplicaciones colaborativas de alta calidad: una realidad sobre la Red Académica de alto desempeño (RENATA

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    José Tiberio Hernández

    2007-11-01

    Full Text Available Este artículo muestra las posibilidades del uso y desarrollo de aplicaciones colaborativas sobre la red académica de alta conectividad (RENATA, que conecta a Colombia con la red latinoamericana CLARA y a través de ésta con Europa (GEANT y con Estados Unidos (Internet2. Los prototipos presentados se desarrollaron sobre la plataforma Access Grid y muestran situaciones en donde esta infraestructura, junto con software de tele-colaboración, puede generar alto valor para los grupos de investigación y el sector empresarial. Los prototipos permiten compartir e interactuar sobre objetos virtuales en una teleconferencia y también integrar facilidades de computación distribuida (GridComputing para cálculos sobre grandes cantidades de datos./ This article shows the potential of collaborative applications over the RENATA network, the academic, high-bandwidth, Colombian communication infrastructure with access to other high-bandwidth initiatives in Latin America (CLARA network, Europe (GEANT, and USA (Internet2. Several prototypes on top of Access Grid show the added value for telecollaboration and teleoperation applications in the academic sector, and in the future for business. We show prototypes that enhance a teleconference with interaction with virtual 3D objects and the use of grid resources.

  12. Microbiologic analysis and its relation to the hygienic quality of milk produced in the region of alto de chicamocha (Department of Boyacá

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    Fausto Camilo Moreno Vásquez

    2007-12-01

    Full Text Available A characterization of the hygienic and sanitary quality of uncooked milk in the Alto de Chicamocha (Department of Boyacá was made. An analysis with laboratory tests was made in which the total count of Somatic Cells, Mesophiles, Staphylococcus, Coliforms and Listeria were evaluated in Petrifilm 3M® slides and the Brucella (milk ring test test was carried out in 34 herds registered in the Federación de Ganaderos de Boyacá, in two different periods of the year. Statistics differences were found between the time of recollection and total counts. In the raining season cows are exposed to environmental contamination (mud, dung, etc, and therefore the total count of Mesophiles, Coliforms and Somatic Cells increases. Furthermore, the actives related to milking routine are not being effective in the reduction of the microbiologic counts. As consequence, the increase of micro organisms in the mammary gland causes mastitis and therefore a decrease in the quality of milk, which is reflected in the sanitary and hygienic components of the product and so in the economic benefits received by the producer.

  13. Caracterización estructural de vidrios con altos contenidos de óxidos de hierro obtenidos a partir de un residuo de la hidrometalurgia del zinc

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    Romero, M.

    1997-10-01

    Full Text Available It has been carried out the structural characterization of high oxide content glasses obtained by melting of a goethite industrial waste from the zinc hydrometallurgy with other raw materials as dolomite and glass cullet. The structural characterization has been carried out by X-Ray Diffraction (XRD, X-Ray Diffraction by Amorphous Dispersion (RDF and Mossbauer spectroscopy. It has been determined the interatomic distance, the oxidation state and the coordination of iron atoms in these glasses.

    En este trabajo se ha llevado a cabo la caracterización estructural de vidrios con altos contenidos de óxidos de hierro obtenidos por fusión de un residuo industrial de goethita procedente de la hidrometalurgia del zinc con otras materias primas (dolomita y casco de vidrio. El estudio estructural se ha realizado por difracción de rayos-X (DRX, difracción de rayos-X por dispersión amorfa (RDF y espectroscopia Mössbauer, determinándose las distancias interatómicas, el estado de oxidación y la coordinación de los átomos de hierro en este nuevo tipo de vidrios.

  14. Evaluation of an indicator for water yield in a watershed of Alto Rio Grande Region, State of Minas Gerais , Brazil Avaliação de um indicador de produção de água em uma bacia hidrográfica no Alto Rio Grande - MG

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    Roberto de Mattos

    2012-08-01

    Full Text Available The Brazilian Law stipulates that water is a limited natural resource doted of economic value, thus it is necessary to develop mechanisms for its adequate management. Actions that encourage the farmers to apply soil conservation practices with the purpose of increase water yield from springs and to promote improvement of its quality, reducing production of sediment transportation, is being encouraged by governments, even with financial compensation for owners. From these assertions, this study aims to quantify the benefits of the conservation actions of the management units and to characterize a Water Yield Indicator (WYI to support sustainable actions in the watershed of Alto Rio Grande region, in the state of Minas Gerais (MG. To assess the impact of actions it were identified four scenarios of land use and occupation of the watershed from Marcela stream which is located in Alto Rio Grande Region. After analyzing the results, it can be stated that the scenarios simulation has demonstrated important changes in water yield and that the definition of the Water Yield Index from the junction of the erosion potential with the water storage potential, has proved effective, as it integrate quantity and quality of water.A legislação brasileira estabelece que a água é um recurso natural limitado e dotado de valor econômico; logo, há necessidade de se criar mecanismos para sua adequada gestão. Medidas que estimulam os produtores rurais a adotarem práticas conservacionistas, visando a maior produção de água, melhoria de sua qualidade e redução da produção de sedimentos, vêm sendo estimuladas pelos governos, utilizando para isso até mesmo uma compensação financeira. A partir destas asserções, objetivou-se quantificar os benefícios das ações de conservação nas unidades de gestão e definir um Indicador de Produção de Água (IPA para a tomada de decisão em uma bacia hidrográfica da região Alto Rio Grande-MG. Para avaliar o

  15. Vazões máximas e mínimas para bacias hidrográficas da região alto Rio Grande, MG Maximum and minimum discharges for Alto Rio Grande region basins, Minas Gerais state, Brazil

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    Carlos Rogério de Mello

    2010-04-01

    Full Text Available Vazões máximas são grandezas hidrológicas aplicadas a projetos de obras hidráulicas e vazões mínimas são utilizadas para a avaliação das disponibilidades hídricas em bacias hidrográficas e comportamento do escoamento subterrâneo. Neste estudo, objetivou-se à construção de intervalos de confiança estatísticos para vazões máximas e mínimas diárias anuais e sua relação com as características fisiográficas das 6 maiores bacias hidrográficas da região Alto Rio Grande à montante da represa da UHE-Camargos/CEMIG. As distribuições de probabilidades Gumbel e Gama foram aplicadas, respectivamente, para séries históricas de vazões máximas e mínimas, utilizando os estimadores de Máxima Verossimilhança. Os intervalos de confiança constituem-se em uma importante ferramenta para o melhor entendimento e estimativa das vazões, sendo influenciado pelas características geológicas das bacias. Com base nos mesmos, verificou-se que a região Alto Rio Grande possui duas áreas distintas: a primeira, abrangendo as bacias Aiuruoca, Carvalhos e Bom Jardim, que apresentaram as maiores vazões máximas e mínimas, significando potencialidade para cheias mais significativas e maiores disponibilidades hídricas; a segunda, associada às bacias F. Laranjeiras, Madre de Deus e Andrelândia, que apresentaram as menores disponibilidades hídricas.Maximum discharges are applied to hydraulic structure design and minimum discharges are used to characterize water availability in hydrographic basins and subterranean flow. This study is aimed at estimating the confidence statistical intervals for maximum and minimum annual discharges and their relationship wih the physical characteristics of basins in the Alto Rio Grande Region, State of Minas Gerais. The study was developed for the six (6 greatest Alto Rio Grande Region basins at upstream of the UHE-Camargos/CEMIG reservoir. Gumbel and Gama probability distribution models were applied to the

  16. Autopia do edifício alto" verde" e a criação de uma nova geração de ícones do desempenho ambiental

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    Erica Mitie Umakoshi

    2009-12-01

    Full Text Available A desordem urbana que tomou conta das cidades da Revolução Industrial, como Londres e Paris, no final do século 19, levou o arquiteto urbanista Le Corbusier a propor um total redesenho urbano, no qual o edifício alto seria o principal elemento de projeto. Nos anos 60, verifica-se o surgimento de projetos visionários baseados nos grandes avanços tecnológicos e voltados às questões habitacionais das grandes cidades, incluindo megaestruturas e edifícios altos. Nesse período, três grupos se destacaram no que tange às inovações do projeto de arquitetura e urbanismo: o Archigram inglês, os Metabolistas japoneses e o Grupo Francês, que criaram uma série de utopias para o tema do edifício alto. Paralelamente, a tipologia do edifício alto de escritórios crescia com o desenvolvimento econômico de importantes cidades do cenário internacional, como Nova York e Londres. À frente, diante da crise energética e ambiental dos anos 70, destacou-se uma nova preocupação na arquitetura mundial: os edifícios deveriam consumir menos energia e serem ambientalmente mais responsáveis. Com isso, surgem utopias que passam a questionar os modelos convencionais, incluindo propostas para o edifício alto" verde". Nos anos 90, o arquiteto malaio Ken Yeang se torna uma referência internacional no tema do" Edifício Alto Ecológico", cujas idéias se baseiam em uma nova estética de projeto: o intenso uso da vegetação, da iluminação e ventilação natural, dentre outras estratégias bioclimáticas, em busca do conforto ambiental. Mais recentemente, sua arquitetura foi reconhecida pelas idéias de" paisagismo vertical" e" urbanismo verde". Ao lado da utopia do edifício verde, exemplos construídos em cidades européias, desde os anos 90, clamam estar definindo as bases arquitetônicas e tecnológicas de uma nova real geração de edifícios mais ecológicos. Os projetos utópicos desenvolvidos ao longo da história vêm exercendo, no que toca

  17. Estudo de Caso de Sistemas Meteorológicos em Altos Níveis Sobre a América do Sul: Análise Sinótica

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    André Becker Nunes

    2017-01-01

    Full Text Available O Vórtice ciclônico de altos níveis (VCAN sobre o nordeste brasileiro (NeB e a Alta da Bolívia (AB são os típicos sistemas de pressão em altos níveis (250 hPa da América do Sul, especialmente nas estações mais quentes. Somados a eles, também pode-se considerar o VCAN extratropical, de característica transiente e encontrado o ano todo. Neste trabalho, é apresentada uma análise sinótica, baseada na literatura especializada, de um caso observado em 01 de fevereiro de 2005 em que os três sistemas ocorreram simultaneamente. Algumas características encontradas na literatura foram observadas nos sistemas deste caso. O campo de temperatura mais associado ao sistema extratropical foi o de 500 hPa, e não o de 250 hPa. Os movimentos verticais mais relevantes foram encontrados somente no sistema extratropical: intensos movimentos ascendentes à sotavento do eixo do cavado em altos níveis. Não se encontrou um sistema em superfície especificamente associado ao VCAN do NeB, enquanto que se observou a baixa continental (ou Baixa do Chaco associada à Alta da Bolívia e um intenso ciclone extratropical associado ao VCAN extratropical. Tal ciclone em superfície acarretou em vento sul e consequente resfriamento da camada, o que pôde ser observado pela amplitude do cavado em altos níveis, o que é raro para esta época do ano.

  18. Polibutadieno alto-cis: estudo viscosimétrico em tolueno e ciclo-hexano High-cis polybutadiene: viscometric study in toluene and cyclohexane

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    Ivana L. Mello

    2006-03-01

    Full Text Available Foram realizadas medidas viscosimétricas, em soluções de tolueno e ciclo-hexano, a 30°C, com polibutadieno alto-cis, sintetizado com catalisadores à base de neodímio. Foram empregadas diferentes equações para determinar os valores de viscosidade intrínseca: Huggins; Kraemer; Martin; e Schulz-Blaschke, por extrapolação gráfica; e Solomon-Ciuta; Deb-Chanterjee e; novamente, Schulz-Blaschke, por determinação por um único ponto. Os valores de viscosidade intrínseca obtidos pelos dois métodos (extrapolação gráfica e por um único ponto foram comparados a fim de se verificar a validade da determinação por um único ponto para os sistemas analisados, bem como determinar que equação fosse a mais adequada para esse tipo de cálculo. Foram calculadas as constantes viscosimétricas de Huggins, Kraemer e Schulz-Blaschke e foi feita uma análise da qualidade do solvente, levando-se em conta também os valores do parâmetro de solubilidade de Hildebrand dos solventes e do polímero. Foi determinada a distância média quadrática entre as extremidades das cadeias poliméricas por meio da equação de Flory, para tal foram utilizados os dados viscosimétricos obtidos, bem como os pesos moleculares determinados por viscosimetria e por cromatografia de exclusão por tamanho. Verificou-se que o método de determinação por um único ponto foi apropriado para o polibutadieno alto-cis, tanto para o cálculo de viscosidade intrínseca quanto de peso molecular. Em tolueno, a equação de Solomon-Ciuta foi a mais adequada, ao passo que a equação de Deb-Chanterjee foi mais apropriada para o polímero em ciclo-hexano. Verificou-se também que o tolueno foi o melhor solvente para o polibutadieno em função dos maiores valores de viscosidade intrínseca e de distância média quadrática entre os extremos da cadeia polimérica. Os valores obtidos para as constantes viscosimétricas confirmaram essa observação.Viscometric measurements, in

  19. Análise Computadorizada da Cardiotocografia Anteparto em Gestações de Alto Risco Computerized Antepartum Cardiotocography Analysis in High Risk Pregnancies

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    Roseli Mieko Yamamoto Nomura

    2002-01-01

    Full Text Available Objetivos: analisar a freqüência dos resultados das cardiotocografias computadorizadas realizadas em gestantes de alto risco e relacionar o critério proposto pelo sistema com os resultados perinatais. Métodos: estudamos prospectivamente 233 gestantes de alto risco que realizaram 485 cardiotocografias computadorizadas. Foram excluídos casos de anomalias fetais e os exames com perda de sinal superior a 20% (proporção de episódios de 3,75 milissegundos do traçado onde não se constata intervalo de pulso por perda de captação dos sinais de batimentos cardíacos fetais. Para estudo da associação da cardiotocografia com os resultados perinatais, analisou-se o último exame realizado na semana anterior ao parto (71 casos, excluindo-se casos com diagnóstico de diástole zero ou reversa na dopplervelocimetria das artérias umbilicais. Resultados: após a exclusão de 33 exames com perda de sinal superior a 20%, constatou-se que 404 cardiotocografias foram caracterizadas como normais (83,3%. Quanto à duração do exame, em 62,1% foi de até 20 minutos e em 79,0% de até 30 minutos. A análise das correlações com os resultados perinatais demonstrou associação significativa (pPurpose: to study computerized cardiotocography performed in high-risk pregnancies, analyze the results, and correlate the criteria to perinatal results. Patients and Methods: two hundred and thirty-three high-risk pregnancies were studied prospectively, performing a total of 485 computerized cardiotocographies. The exclusion criteria included fetal anomalies and signal loss over 20% (proportion of 3.75-millisecond periods in which there were no valid pulse intervals. The perinatal results of 71 pregnancies were correlated to the last cardiotocography, performed at least seven days before birth, excluding patients with absent or reversed end diastolic velocities in the umbilical arteries. Results: thirty-three examinations with signal loss over 20% were excluded. The

  20. A construção do mercado para o café em Alto Paraíso de Goiás

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    Jurema Iara Campos

    2010-03-01

    Full Text Available Este estudo apresenta os principais resultados da análise de como habitantes de Alto Paraíso de Goiás estão buscando alternativas para o desenvolvimento sustentável do município, por meio da implantação, pela Embrapa, de projeto relativo ao resgate do café. A mineração e as atividades agropecuárias foram exercidas na região até os anos 60, quando a atividade principal passou a ser o turismo, a partir da criação do Parque Nacional da Chapada dos Veadeiros e da inauguração de Brasília. Em 2000, o fluxo de turistas decaiu devido a problemas relativos à saúde pública, acarretando estagnação da economia local. Nos últimos anos, produtores familiares despertaram para a existência, ali, de um café que pode ser comercializado em nichos de mercado de grãos especiais: orgânicos e de origem definida, e buscaram, na Embrapa, o desenvolvimento de projeto de pesquisa. O estudo na região revelou que por meio do desvelamento de valores - história, cultura e tradições - é possível estabelecer estratégia mais eficiente de busca de mercado, a partir da experiência revelada no trabalho concreto e na cultura dos produtores. E que o desenvolvimento rural deve ser buscado por meio do desenvolvimento de atividades da nova ruralidade e da aplicação de abordagem territorial de desenvolvimento.This work presents main results of how inhabitants of Alto Paraíso de Goias are seeking alternatives to sustainable development through the implantation, by Embrapa, of a project about the rescue of coffee. Mining and farming activities were developed in the region until its main activity turned into tourism in 1960, with the creation of the National Park of the Chapada dos Veadeiros, and inauguration of Brasilia. In 2000, flow of tourists dropped due to problems related to public health, resulting in the stagnation of local economy. Over the last years, family producers woken up for the existence of a coffee that can be sold in niche markets

  1. MICORRIZA ARBUSCULAR Y SU EFECTO EN PLÁNTULAS DE Elaeis guineensis (Palmaceae CON ALTO NIVEL DE FÓSFORO EN EL SUELO

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    Silvia Eugenia Barrera Berdugo

    2010-01-01

    Full Text Available Los hongos micorrizicos arbusculares (HMA facilitan la absorción de nutrientes a las plantas hospederas, por esta razón estos microorganismos cumplen un rol fundamental en el funcionamiento de los agroecosistemas. Con el fin de evaluar el efecto que tienen los HMA nativos y foráneos en Elaeis guineensis se realizó este experimento. Plantas de tres meses de edad fueron sometidas a cuatro tratamientos: IN, IF, Mixto y Testigo. Se evaluó peso seco total de la planta, peso seco raíz, peso seco parte aérea de la planta, altura de la planta, tasa de crecimiento relativo, porcentaje de colonización y número de esporas. Se hicieron tres muestreos, uno inicial, uno a los 45 días y otro a los 90 días. Los datos fueron analizados mediante un ANOVA o Kruskall-Wallis según el comportamiento de los datos, seguido de un test de medias de Duncan o un test modificado de Tuckey para datos no paramétricos. Se presentaron diferencias significativas en el número de esporas entre los tratamientos IN, IF, Mixto y el Testigo y entre IN y Mixto a los 45 días. En el porcentaje de colonización se observaron diferencias entre los tratamientos IF y Testigo a los 45 días. A los 90 días entre todos los tratamientos con respecto al testigo. A pesar de que el nivel de P en el suelo fue alto, también lo fue el porcentaje de colonización en las dos épocas evaluadas. A través del tiempo el tratamiento IN funcionó mejor en las condiciones edáficas del suelo usado en este experimento.

  2. Tecnología de riego, cultura y desarrollo empresarial en la reconversión agropecuaria del distrito de riego del alto Chicamocha

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    Hernando Espejo Fonseca

    2016-04-01

    Full Text Available La actividad agropecuaria en los distritos de riego debe ser dinámica por definición, lo que implica la adopción de relaciones de producción modernas con capacidad para articularse efectivamente a los nuevos requerimientos de mercados cada vez más exigentes y cambiantes; deben ser igualmente flexibles para adaptarse fácilmente a un entorno caracterizado por las demandas que implica la competencia y la liberalización del comercio mundial. Sin embargo, en el distrito de riego del alto Chicamocha, cuyo objetivo fundamental es lograr la reconversión productiva hacia actividades principalmente agrícolas como base de su desarrollo, se observa una lenta transformación en este tipo de relaciones y se hizo necesario identificar algunos de los factores más relevantes que están dificultando ese proceso; necesario para ubicar el proyecto de irrigación como el punto de partida desde donde se convierta a la región en un gran proveedor de alimentos de acuerdo con las expectativas generadas en los usuarios desde su etapa de formulación. El presente artículo es el resultado del trabajo realizado bajo el mismo título en la Maestría de Desarrollo Rural, en el cuál se identificaron algunos de los factores que explican en parte la situación actual del proyecto, para que con su conocimiento y un manejo adecuado, se conviertan en una estrategia para impulsar el despegue y modernización de la producción agropecuaria en la región.

  3. MISTURAS DE FARINHA DE AVEIA E AMIDO DE MILHO COM ALTO TEOR DE AMILOPECTINA PARA PRODUÇÃO DE "SNACKS"

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    KARAM Laura Beatriz

    2001-01-01

    Full Text Available O potencial de uso do amido modificado com alto teor de amilopectina combinado à farinha de aveia para produção de "snacks" extrusados foi investigado. O processamento foi executado em extrusor mono-rosca, de acordo com um delienamento fatorial (2(5 incompleto, com 3 repetições no ponto central. As variáveis independentes controladas foram: umidade da matéria-prima, temperatura de extrusão, rotação do parafuso, diâmetro da matriz e teor de amido modificado. Como respostas, avaliou-se o volume específico, a dureza e a fraturabilidade. A partir da modelagem exploratória foram definidas as variáveis significativas e novos deslocamentos na área experimental, até se atingir o ponto ótimo para produção de "snacks". A melhor combinação de variáveis encontrada, para obter um produto com boas propriedades de expansão e de textura, foi: 17% de umidade de matéria-prima, 183°C de temperatura de extrusão, 100rpm de rotação do parafuso, 4mm de diâmetro da matriz e 30% de amido modificado. O produto obtido nessas condições apresentou 7,2mL/g de volume específico, 5,41N de dureza e 2,02N de fraturabilidade, assemelhando-se, por essas características, aos produtos comerciais de milho.

  4. Análisis e impacto de la implementación de una organización de alto desempeño

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    Rodrigo Enrique Fuentealba Galloso

    2006-07-01

    Full Text Available El objetivo del trabajo es identificar los factores y aspectos fundamentales a considerar en la implementación de un cambio en una organización, específicamente,  desde un sistema jerárquico tradicional a un Sistema de Alto Desempeño, así como los impactos de dicha implantación en la organización. Este trabajo fue desarrollado en una empresa productora de Cementos de la región, la cual, después de 40 años de existencia implementó un sistema de organización moderno con el fin de consolidar un plan estratégico orientado en mayor generación de valor para la compañía. El trabajo se basa en el análisis de las etapas del proceso de implementación del nuevo sistema y algunas observaciones luego de casi dos años desde su implementación. The objective of the work is to identify the fundamental factors and aspects to consider in the implementation of a organization change, specifically, from a traditional hierarchic system to a High Performance System, as well as the impacts of this implantation in the organization. This work was developed in cement producing company of the region, which, after 40 years of existence implemented a system of modern organization by the purpose of consolidating a strategic plan oriented to a greater generation of value for the company. The work is based on the analysis of the stages of the process of implementation of the new model and some observations after almost two years from its implementation, that allow to give guidelines that facilitate the consolidation of the High Performance like organizacional system.

  5. Interpretación de procesos redox en suelos sulfatados ácidos del distrito de riego del Alto Chicamocha, Boyacá

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    Gómez Manuel Iván

    2005-06-01

    Full Text Available

    La génesis de suelos sulfatados ácidos (SSA ubicados en el valle fluvio-lacustre de la cuenca alta del Río Chicamocha (Boyacá, Colombia fue de­terminada mediante la oxidorreducción del hierro y el azufre, procesos que promueven una acidificación y modificación extremas de las características fisico­químicas del medio. Mediante el comportamiento de los parámetros: Eh (mV, pH (pH en agua, 1:1, pHox (pH en peróxido de hidrógeno al 30%, 1:1 y Al+3, se estableció la existencia de una degradación severa de estos SSA que se relacionó con la presencia de materiales orgánicos o minerales que forman parte de horizontes sulfúricos diagnósticos. La mayor parte de los horizontes sulfúricos estudiados coinciden con Eh (mV positivos >400; pH menores <3,7 y Al3+ >5 cmol· kg-1, indicadores que demuestran una fuerte evolución (oxidación y determinan las limitantes de productividad agrícola presentes en los SSA del dis­trito de riego del Alto Chicamocha.

  6. Características del consumo de vegetales en los estratos socioeconómicos medio y alto de Bogotá

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    Parrado Álvaro

    2007-12-01

    Full Text Available

    En el segundo semestre de 2005 se realizaron 384 encuestas a personas de los estratos socioeconómicos medio y alto de Bogotá, con el objeto de identificar características del consumo de vegetales relacionadas con preferencias, frecuencia y lugares de compra (acceso a canales. Esta investigación constituye una segunda fase de la realizada por Montoya et al. (2004, incluyendo como nuevos temas el consumo de vegetales orgánicos y los paquetes de productos que las personas estarían interesadas en adquirir. Se estimó una elasticidad de 0,55 para la inversión de las familias en vegetales. Las mujeres son generalmente las que toman la decisión de compra. El supermercado es el lugar predilecto para comprar los vegetales. Los productos con mayor frecuencia de compra son el tomate, la cebolla cabezona, la naranja y la zanahoria. Los de menor consumo fueron la col de bruselas, la berenjena y el rábano; estos últimos son adquiridos principalmente por personas de estratos 4, 5 y 6. Los consumidores potenciales manifestaron un interés del 62% por adquirir los productos a domicilio; las personas de mayores ingresos muestran el mayor interés por este canal de comercialización. A pesar de que el 41% dijo no saber qué son los productos orgánicos y a que sólo el 20% los consume frecuentemente, más de la mitad de la población estaría interesada en adquirir estos productos (59%, lo cual indica que hay un potencial de mercado superior a al consumo actual.

  7. Fósseis do Devoniano de Goiás, Brasil (Sub-bacia Alto Garças, Bacia do Paraná

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    Fábio Augusto Carbonaro

    Full Text Available RESUMO O registro fóssil do Devoniano do estado de Goiás (Sub-bacia Alto Garças, Bacia do Paraná é ocorrente nos arredores de diversas cidades como Amorinópolis, Iporá, Caiapônia, Rio Verde e Doverlândia. Contudo, os fósseis encontrados em Goiás são, em sua maioria, representados por braquiópodes, comumente pertencentes aos gêneros Derbyina, Australocoelia, Australospirifer, Schuchertella, Orbiculoidea e Lingula. Embora também haja ocorrências, em menor número, de outros grupos como trilobitas, moluscos, tentaculitoideos, anelídeos, equinodermas, lycopsidas e cnidários, além dos microfósseis de quitinozoários, representados pelos gêneros Ramochitina, Ancyrochitina, Sphaerochitina, Angochitina, Conochitina, Lagenochitina e Cyathochitina. No entanto, os trabalhos que tratam de fósseis para esse estado são escassos quando comparados ao grande número de trabalhos realizados no Devoniano do estado do Paraná (Sub-bacia Apucarana, Bacia do Paraná. Tal fato se deve ao baixo número de pesquisadores trabalhando nessa área. Tendo em vista esse défice de artigos, o presente trabalho objetivou instigar o estudo dos fósseis devonianos de Goiás por meio de um levantamento paleontológico, que apresenta os fósseis e as localidades fossilíferas conhecidas no estado, além de apontar novos afloramentos e novos registros fósseis do Devoniano encontrados nas regiões fossilíferas do estado, as quais foram revisitadas pelos autores.

  8. Análise da durabilidade do concreto de alto desempenho com adição de cinza de casca de arroz e borracha de pneu

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    Antonio Rogério Brizante de Vasconcelos

    Full Text Available Desde a década de 70 o Brasil vem apresentando uma crescente degradação nas suas estruturas de concreto armado. Por esta razão, inúmeras pesquisas relacionadas à durabilidade destas estruturas têm sido realizadas, visando a contribuir com a qualidade e com a redução dos custos com manutenção e reparos. Este trabalho avaliou o comportamento da durabilidade do concreto de alto desempenho com adições, substituindo parte de cimento e agregados presentes no concreto pela cinza da casca de arroz e borracha de pneu respectivamente. Foram realizados ensaios de durabilidade submetendo o concreto a diversos processos de degradação, como a ação da água, temperatura, sais e solução ácida. O estudo indicou que a durabilidade não foi comprometida com adição de sílica ativa ou cinza da casca de arroz, com a adição de borracha de pneu. De fato, a borracha mostrou-se muito eficaz no combate a ação de agentes químicos, a altas temperaturas e à entrada de água. Com a cinza da casca de arroz, apesar do maior diâmetro de suas partículas, conseguiu-se resultados similares em relação à sílica ativa.

  9. CARACTERIZACIÓN DE LOS SISTEMAS DE PRODUCCIÓN OVINOS DE TRÓPICO ALTO EN COLOMBIA: MANEJO E INDICADORES PRODUCTIVOS Y REPRODUCTIVOS

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    D. C. Moreno

    2017-01-01

    Full Text Available Con el objeto de caracterizar su manejo y desempeño productivo y reproductivo, se aplicó una encuesta en 66 Sistemas de Producción Ovinos de Trópico Alto ( Spota en Colombia. La recopilación de la información se llevó a cabo a través de una encuesta experta compuesta por 32 variables (10 productivas y 22 reproductivas. Los indicadores estadísticos se calcularon a través del programa SAS® v.9.1. Los Spota se distribuyeron en tres categorías en función del objetivo de producción: carne y lana (59%, genética y carne (24% y carne (17%. El control de peso de los animales se realizó con báscula de reloj y el método de esquila fue manual en estos sistemas productivos. Las variables productivas edad al destete y peso al beneficio presentaron menores valores en los Spota de carne. Se observó la implementación de programas de monta libre continua (en 82% de los sistemas de tipo carne y lana y de monta controlada continua (en 81% de los sistemas de tipo genética y carne, y en 73% en las de carne. Las variables reproductivas días abiertos y vida útil de los machos presentaron mayores valores en los Spota de carne y lana. Se encuentra que el manejo y desempeño productivo y reproductivo de los Spota presenta un mejor comportamiento en los sistemas ovinos de los tipos genética y carne y carne. En los sistemas ovinos de carne y lana no se realiza un adecuado control productivo y reproductivo que permita sostener la oferta de productos en el mercado.

  10. UNA PROPUESTA DE AULA PARA EL ABORDAJE DE LA REGIÓN DEL ALTO VALLE DE RÍO NEGRO Y NEUQUÉN

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    Guillermina Muñoz Castillo

    2014-12-01

    Full Text Available Within the Postgraduate specialization Educational contents in Geography in National Comahue University, the interest was focused in the study involved North Patagonia region and the spatial transformations derived from global and national economic restructuring in recent times. The present report presents a collection of contents and geographical themes associated with this area, directed to plan a new annual schedule of geographic classroom contents. The idea behind this proposal was the incorporation of the concept of region, considering the High Valley region of Negro and Neuquén rivers as a study case, and the analysis of fruit farming understood as one of the local production processes which clearly show significant changes in its dynamics as a result of the macroeonomic transformations. The objective is to propose contents which allow middle school students to acquire new knowledge about the North Patagonia region, specifically the Alto Valle region of Río Negro and Neuquén, based on the incomplete study of the region as a cross-curricular theme. This presentation offers a new perspective of thinking about new teaching approaches in the classroom in which students’ everyday life would be considered, specially their own representations of their local sphere as a valid tool to build meaningful and socially relevant knowledge. Geography teaching needs to reconsider to meet students’ demands, to provide tools to offer a solution of their problems and practical needs. The construction of a critical and reflexive subject is essential, and Geography, particularly, assumes a formative and assiduous role, because, through its tools, it intends to realise the student’s intervention, turning himself into an active participant of the construction of his reality.

  11. Aspectos agronômicos de leguminosas para adubação verde no Cerrado do Alto Vale do Jequitinhonha

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    Ricardo Borges Teodoro

    2011-04-01

    Full Text Available O uso intensivo e inadequado dos solos acelera sua degradação, sendo necessária a intervenção por meio de práticas conservacionistas para restaurar a capacidade produtiva dos mesmos. O objetivo deste estudo foi avaliar o comportamento e desenvolvimento de diferentes leguminosas utilizadas como adubos verdes em solos de Cerrado, Alto Vale do Jequitinhonha, em Turmalina, MG. O delineamento experimental adotado foi em blocos ao acaso, com sete tratamentos e quatro repetições, sendo os tratamentos constituídos pelas leguminosas: mucuna-cinza (Mucuna nivea, mucuna-preta (Mucuna aterrima, lablabe (Dolichos lablab, feijão-de-porco (Canavalia ensiformis, Crotalaria juncea, Crotalaria spectabilis e guandu-anão (Cajanus cajan. O ciclo precoce de C . juncea, C. spectabilis e feijão-de-porco favorece a inserção destes nos sistemas de cultivo. Aos 40 dias, o feijão-de-porco e mucuna-cinza já cobriam o solo, com 67 e 63 %; já o guandu-anão e C. juncea apresentaram os maiores desenvolvimentos, nesse período. Os teores de N, P e K tendem a diminuir nas avaliações realizadas nas diferentes fases vegetativas, o que contribui para melhor escolha da época de manejo das leguminosas. Crotalaria juncea, mucuna-cinza, feijão-de-porco e mucuna-preta foram as leguminosas que se destacaram na produção de matéria seca, o que torna essas espécies promissoras para adubação verde na região. As leguminosas, em sua maioria, apresentam potencial para reciclagem dos macronutrientes e aporte de N aos sistemas de produção.

  12. Influencia de la adición de escoria de alto horno en la penetración de los cloruros en el concreto

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    Juan Lizarazo Marriaga

    2011-05-01

    Full Text Available Debido a que en estructuras de concreto hechas con cemento Portland la penetración del ion cloruro es la principal causa de deterioro por corrosión del refuerzo, el estudio y prevención de los mecanismos que generan corrosión en el concreto son fuentes de constante investigación. En el presente artículo se presentan los resultados de una investigación analítica y experimental sobre la influencia de la adición de la escoria de alto horno en las propiedades que gobiernan los fenómenos de transporte iónico del concreto, especialmente los del ion cloruro. Las relaciones entre los coeficientes de difusión con la resistividad eléctrica, la carga pasada y la resistencia a la compresión, fueron evaluadas para mezclas con diferentes porcentajes de remplazo de escoria. De la misma forma, mediante un modelo computacional y un ensayo de migración eléctrica se obtuvieron los coeficientes intrínsecos de difusión, la porosidad, la capacidad de fijación de cloruros y la concentración química de la solución de poros. Los resultados obtenidos mostraron que la escoria aporta importantes beneficios en la penetración del ion cloruro, obteniéndose un concreto menos vulnerable a la corrosión.

  13. Correlación entre la oximetría de pulso y la gasometría arterial en el paciente de alto riesgo

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    Blas Hernández Suárez

    1998-09-01

    Full Text Available Se realiza un análisis del valor de la saturación arterial de la hemoglobina, en un estudio prospectivo de 20 pacientes pediátricos programados para corregir su defecto anatómico cardiovascular, a los cuales se les realizaron 20 tomas de muestra para gasometría arterial y monitoreo continuo con oxímetro de pulso. Se hace además, una reseña histórica sobre saturometría transcutánea; se relacionan las características técnicas de los equipos utilizados. Se analizan los datos obtenidos, los cuales son comparados y se concluye en que las mediciones de saturometría transcutánea es un gran paso de avance en el monitoreo respiratorio y hemodinámico en el paciente de alto riesgo al que se le efectúa cirugía, además lo no invasivo lo hace la mejor y más económica elección en los quirófanos.An analysis of the value of the arterial saturation of hemoglobin was carried out in a prospective study of 20 pediatric patients, programmed to correct their cardiovascular anatomic defect; 20 samples were taken from them for blood gas analysis, and a continuous monitoring with a pulse oxymeter was ordered. Also a short story about percutaneous saturation measuring, is made; the technical characteristics of the equipment used, are listed. The data obtained are analyzed and compared, and it is concluded that the percutaneous saturation measurements are a great advancement in the respiratory and hemodynamical monitoring of the high risk patient to whom surgery is done; also, its non-invasive characteristics makes it the best and most economic choice in the operating room.

  14. Continuidade espacial da condutividade hidráulica saturada do solo na bacia hidrográfica do Alto Rio Grande, MG

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    Camila Cristina Alvarenga

    2011-10-01

    Full Text Available A distribuição espacial da condutividade hidráulica saturada (k0 é essencial para estudos relacionados a erosão do solo e escoamento superficial. Este trabalho objetivou estudar a continuidade espacial do atributo hidrológico do solo k o na Bacia Hidrográfica do Alto Rio Grande, MG, e realizar seu mapeamento por meio de técnicas geoestatísticas, utilizando dados sem e com transformação logarítmica. Os modelos de semivariograma esférico e exponencial foram ajustados ao semivariograma experimental pelo método dos Mínimos Quadrados Ordinários (MQO e Mínimos Quadrados Ponderados (MQP. Técnicas de validação cruzada e preditiva foram aplicadas para a escolha do melhor modelo. Os resultados indicaram que, ao se trabalhar com o logaritmo dos dados de k o, houve redução de pontos discrepantes e de anisotropia, entretanto os valores mais elevados de grau de dependência espacial foram observados nos dados sem transformação. O ajuste do modelo esférico, por meio do método MQO, foi o que produziu melhor desempenho na modelagem da continuidade espacial de k0. Os mapas gerados a partir dos dados sem e com transformação logarítmica não apresentaram o mesmo comportamento na distribuição espacial dos valores, e o mapa dos dados na forma transformada teve o melhor detalhamento da distribuição espacial.

  15. SEDIMENTAÇÃO FLUVIAL QUATERNÁRIA NO VALE DO ALTO CURSO DO RIO MACAÉ, ESTADO DO RIO DE JANEIRO, BRASIL.

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    Mônica dos Santos Marçal

    2015-09-01

    Full Text Available O trabalho foi desenvolvido no vale do alto curso do rio Macaé, norte do estado do Rio de Janeiro, e tem como objetivo apresentar as análises geomorfológicas e estratigráficas, além das idades obtidas com o método da luminescência (LOE, realizadas em feições sedimentares de terraços fluviais. Foram selecionadas duas áreas de sedimentação denominadas AS-1, localizada mais a montante do vale, e AS-2 mais a jusante. As feições ocorrem em quatro níveis, sendo três níveis de terraço fluvial, denominados Nível Superior (T1, Nível Intermediário (T2 e Nível Inferior (T3, e um Nível de Planície de Inundação atual (PI. Estão distribuídos de forma descontínua, predominantemente na margem esquerda do rio Macaé, sendo que a planície de inundação (PI ocorre em níveis diferentes em cada margem do vale. Os resultados obtidos das datações por LOE para os sedimentos dos três níveis de terraços (T1, T2 e T3 apresentam boa correspondência às evidências geomorfológicas e estratigráficas utilizadas na definição dos níveis deposicionais aluviais.

  16. Efecto del V y el Si Sobre la Microestructura de Depósitos Realizados con Electrodos Tubulares Revestidos de Alto Contenido de Mn (Hadfield

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    Manuel Rodríguez

    2017-10-01

    Full Text Available Resumen: Las aleaciones para el relleno superficial Fe-Mn-C (Hadfield han demostrado una excelente resistencia al desgaste bajo altas cargas dinámicas. En los últimos años se han realizado numerosos estudios para aumentar la resistencia al desgaste y mejorar su desempeño, a través de la introducción de otros elementos de aleación. En el presente trabajo se investiga la microestructura y dureza de los depósitos de relleno con alto contenido de Mn y adiciones de 1.2% de V y 2.4% de Si. Los depósitos estudiados se realizaron utilizando electrodos tubulares revestidos fabricados a escala de laboratorio. Las fases y microconstituyentes en el metal depositado se identificaron mediante microscopía óptica (MO, electrónica de barrido (MEB, difracción de rayos X (DRX, dureza y microdureza. De acuerdo a los resultados obtenidos, la adición de V al sistema aleante originó que la fase predominante fuera la austenita. Además, contribuyó a la formación de carburos de vanadio (VC en la microestructura de la capa de relleno, sin observarse la presencia de carburos complejos. Por otra parte, la presencia de Si favoreció la formación de una red de ferrita interdendrítica. La adición de estos elementos de aleación mejoró las propiedades de estos depósitos, potencializando su uso en aplicaciones que requieren alta resistencia al desgaste bajo altas cargas.

  17. Cambios de uso del suelo y crecimiento urbano. Estudio de caso en los municipios conurbados de la Mancomunidad Metrópoli de Los Altos, Quetzaltenango, Guatemala

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    Héctor Obdulio Alvarado-Quiroa

    2014-02-01

    Full Text Available Para la planificación estratégica territorial es indispensable elaborar diagnósticos territoriales que develen el comportamiento y las dinámicas, es decir, analizar las relaciones mutuas entre la vocación de uso de la tierra (capacidad de uso y su uso actual. El presente artículo hace un análisis de los cambios de uso y el crecimiento urbano que ha sufrido el territorio de los municipios conurbados de la Metrópoli de Los Altos, en el departamento de Quetzaltenango, Guatemala, como un indicador de la intensidad de uso de territorio. Para ello se determinó en primera instancia la capacidad de uso del suelo, utilizando la metodología del INAB (2000. Al determinar la capacidad de uso y contrastarlo con el uso dado para los años 1964, 1970, 1982, 1990, 2002 y 2006, se explica cómo a partir del año 1990 y hasta 2006 empieza a darse una alta conflictividad (intensidad en el uso del territorio. Con este estudio se demuestra la presión que ha ejercido la expansión urbana sobre los suelos con una alta vocación agrícola y sobre el medio natural, especialmente sobre las áreas protegidas y bosques, debido a la falta de una planificación estratégica territorial. Esto ha provocado un uso espontáneo del territorio y un crecimiento urbano descontrolado con graves repercusiones ambientales. En el estudio también se estima el escenario tendencial, dando como resultado la desaparición de toda el área con alta vocación agrícola para el año 2039.

  18. Caracterização fisiográfica da bacia hidrográfica do Alto Rio Jamanxim, Pará, Brasil

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    Getulio Teixeira Batista

    2007-06-01

    Full Text Available O presente trabalho objetivou delimitar, codificar e caracterizar as sub-bacias formadoras da bacia hidrográfica do Alto Rio Jamanxim, assim como, quantificar as áreas desflorestadas e a extensão da malha viária em sua área de drenagem, para os anos de 1999 e 2005. Para o desenvolvimento do trabalho foram utilizados dados referentes às “ottobacias”, hidrografia, rodovias, modelo digital de elevação (MDE e quatro imagens do sensor Tematic Mapper do satélite Landsat-5 (TM/Landsat-5 dos anos de 1999 e 2005. Com base em um modelo hidrológico gerado a partir do Modelo Digital de Elevação (MDE da bacia, na escala de 1:250.000, foi delimitada sua área de drenagem, bem como calculados seus parâmetros hidrológicos. Como resultado foram delimitadas e caracterizadas nove ottobacias na área de estudo, codificadas até o nível 5 (44291 a 44299. Em relação às atividades antrópicas na área da bacia foram identificadas as áreas desflorestadas até os anos de 1999 (635km2, correspondentes a 11% da área da bacia e de 2005 (1.257km2 representando cerca de 21% da área total da bacia. Houve um incremento de desflorestamentos, entre as duas datas investigadas, de 622km2, ou seja, 98 % de aumento. Quanto à malha viária, foi mapeada uma extensão total de 1.685km até 1999 e de 3.638km até julho de 2005, o que representou um incremento de 116% na extensão das estradas abertas no período de 6 anos.

  19. The influence of method-related partner violence on covert pill use and pill discontinuation among women living in La Paz, El Alto and Santa Cruz, Bolivia.

    Science.gov (United States)

    McCarraher, Donna R; Martin, Sandra L; Bailey, Patricia E

    2006-03-01

    Intimate partner violence is widespread worldwide. While assumed to impact women's ability to use contraceptive methods, few data are available to support this claim. In this study, eight focus group discussions were conducted to guide questionnaire development and to provide contextual information. Participants were women who were currently using the pill and women who had used the pill previously. In addition, 300 women were interviewed who initiated oral contraceptive pill use between December 1995 and April 1996. Participants were interviewed 3-6 months later to investigate the role intimate partner violence played in covert pill use and pill discontinuation. Special study procedures for asking women questions about violence were employed. Nineteen per cent of the women interviewed were using the pill covertly. The odds of covert pill use were four times higher in El Alto and La Paz than in Santa Cruz. Women who used the pill covertly were more likely to have experienced method-related partner violence (OR = 21.27) than women whose partners knew of their pill use. One-third of the women had discontinued pill use at the time of the interview. In the final multivariate analysis, having experienced side-effects (OR = 2.37) was a significant predictor of pill discontinuation and method-related partner violence was marginally predictive (OR = 1.91; 95% CI 1.0-3.66). While efforts are ongoing to incorporate men into family planning programmes, some male partners oppose, and in some situations violently oppose, contraceptive use. The needs of women with these types of partners must not be overlooked.

  20. Effects of lateral variations of crustal rheology on the occurrence of post-orogenic normal faults: The Alto Tiberina Fault (Northern Apennines, Central Italy)

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    Pauselli, Cristina; Ranalli, Giorgio

    2017-11-01

    The Northern Apennines (NA) are characterized by formerly compressive structures partly overprinted by subsequent extensional structures. The area of extensional tectonics migrated eastward since the Miocene. The youngest and easternmost major expression of extension is the Alto Tiberina Fault (ATF). We estimate 2D rheological profiles across the NA, and conclude that lateral rheological crustal variations have played an important role in the formation of the ATF and similar previously active faults to the west. Lithospheric delamination and mantle degassing resulted in an easterly-migrating extension-compression boundary, coinciding at present with the ATF, where (i) the thickness of the upper crust brittle layer reaches a maximum; (ii) the critical stress difference required to initiate faulting at the base of the brittle layer is at a minimum; and (iii) the total strengths of both the brittle layer and the whole lithosphere are at a minimum. Although the location of the fault is correlated with lithospheric rheological properties, the rheology by itself does not account for the low dip ( 20°) of the ATF. Two hypotheses are considered: (a) the low dip of the ATF is related to a rotation of the stress tensor at the time of initiation of the fault, caused by a basal shear stress ( 100 MPa) possibly related to corner flow associated with delamination; or (b) the low dip is associated to low values of the friction coefficient (≤ 0.5) coupled with high pore pressures related to mantle degassing. Our results establishing the correlation between crustal rheology and the location of the ATF are relatively robust, as we have examined various possible compositions and rheological parameters. They also provide possible general indications on the mechanisms of localized extension in post-orogenic extensional setting. The hypotheses to account for the low dip of the ATF, on the other hand, are intended simply to suggest possible solutions worthy of further study.

  1. DIFERENCIAS ENTRE JUGADORES DE BALONMANO DE CATEGORÍA DE ALTO RENDIMIENTO Y DE BASE EN VARIABLES MOTIVACIONALES Y ANSIEDAD PRECOMPETITIVA

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    Marco Da Silva Batista

    2015-04-01

    Full Text Available Los deportistas en general, se exponen a diversas situaciones intensas en el entorno deportivo, en las que la ansiedad puede suponer que el deportista no afronte los objetivos de la manera más eficaz. Resulta importante analizar el término ansiedad, el cual, hace referencia a un estado emocional negativo que incluye sensaciones de nerviosismo, preocupación y aprensión, relacionadas con la activación o el arousal del organismo. Así pues, la ansiedad tiene un componente de pensamiento, por ejemplo, la preocupación y la aprensión, llamando ansiedad cognitiva, y un componente de ansiedad somática, o percepciones de los síntomas corporales (Weinberg y Gould, 1995. La autoconfianza hace referencia a la creencia que tiene una persona de poder hacer aquello que quiere hacer (Feltz, 1994.Así mismo, resulta relevante analizar la motivación que presenta el deportista, para ello emplearemos la Teoría de la Autodeterminación (TAD, cuyas últimas aportaciones a la teoría (Vansteenkiste, Niemiec, y Soenens, 2010, se decantan más por una agrupación formada por la motivación autónoma (compuesta por la motivación intrínseca y la regulación identificada, motivación controlada (formada por las regulaciones introyectada y externa y la desmotivación. La TAD se basa en que el comportamiento humano es motivado fundamentalmente por tres necesidades psicológicas básicas (NPB: autonomía, competencia, y relaciones sociales (Deci y Ryan, 2000.Objetivo: Determinar las diferencias existentes en jugadores de Balonmano de alto rendimiento y de categorías base, en cuanto a los tipos de motivación, necesidades psicológicas básicas, y ansiedad precompetitiva.

  2. Factores y prácticas de alto desempeño que influyen en el clima laboral: análisis de un caso

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    Ángela Carola Zenteno-Hidalgo

    2015-12-01

    Full Text Available La preocupación de las empresas por el clima laboral ha sido creciente desde su concepción, pues se le atribuye impacto directo en el resultado de las organizaciones. El presente trabajo revisa los conceptos y constructos implicados en la medición de clima laboral, los que se vinculan con prácticas de recursos humanos de alto desempeño (PAR. A la vez se investiga la relación del clima laboral en el desempeño de una empresa de recursos naturales en Chile. El estudio usa respuestas de 84 trabajadores a una encuesta de clima para evaluar un modelo propuesto. Además se investigó la importancia de los factores de clima en la predicción de variables de resultado, tales como satisfacción, desempeño y motivación. Para esto se utilizaron las técnicas estadísticas de análisis factorial y regresión logística. Los factores de clima organizacional identificados en esta muestra son: remuneración y justicia; equipos autogestionados, trabajo en equipo y liderazgo; calidad y efectividad; comunicación; sustentabilidad ambiental; reducción del miedo e incremento de la confianza; seguridad laboral, y apoyo para el desempeño. Los factores más relevantes e influyentes son los primeros: remuneración y justicia; equipos autogestionados, trabajo en equipo y liderazgo, y calidad y efectividad.

  3. Caracterização bioquímica de linhagens de soja com alto teor de proteína Biochemical characterization of high protein soybean lines

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    Rita Maria Alves de Moraes

    2006-05-01

    Full Text Available O objetivo deste trabalho foi caracterizar bioquimicamente duas isolinhas de soja com alto teor de proteína. O aumento do teor de proteína nas isolinhas foi acompanhado por redução no teor de óleo e de carboidratos totais. Em relação à composição aminoacídica, o aumento do teor de proteína promoveu acréscimo em todos os aminoácidos, exceto glicina, alanina, metionina, cisteína e tirosina, mantendo a relação enxofre/nitrogênio. A quantificação dos polipeptídios mostrou que o aumento do teor de proteína manteve inalterado o teor das proteínas 7S, promoveu aumento no teor das proteínas 11S e, conseqüentemente, da relação 11S/7S. Pode haver melhoria na qualidade do farelo de soja das isolinhas, uma vez que as proteínas 11S têm melhor qualidade nutricional do que as proteínas 7S.The objective of this work was to characterize high protein soybean near isogenic lines. The increasing of protein was followed by reducing of oil and carbohydrate. In respect to aminoacid composition, increasing of protein promoted a rising in all aminoacids, except for glycine, alanine, methionine, cysteine and tyrosine, although the ratio S/N has been kept. The measure of polypeptides showed that the increasing of protein did not alter the quantity of 7S proteins, provided increasing of 11S proteins and 11S/7S ratio. An improvement of meal quality in these lines can occur once the 11S proteins have a better nutritional quality than 7S proteins.

  4. La pesquería de la corvina golfina y las acciones de manejo en el Alto Golfo de California, México

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    Joaquín Humberto Ruelas-Peña

    2013-07-01

    Full Text Available La corvina golfina (Cynoscion othonopterus es una especie endémica del golfo de California y su pesquería es una de las más importantes del Alto Golfo de California. Dos modelos de biomasa dinámica (Schaefer & Pella-Tomlinson se utilizaron para evaluar el estado del stock al no contar con datos suficientes de edad para una evaluación basada en estructura de edades. Los modelos requirieron series históricas de los índices de abundancia (CPUE de la pesquería, derivados de los datos de captura y esfuerzo de la pesca comercial (1993-2010. El criterio de información de Akaike indicó que el modelo de Schaefer presentó un mejor ajuste a los datos de la pesquería. El rendimiento máximo sustentable (RMS estimado con el modelo de Schaefer fue de 3,100 ton, con una biomasa (BRMS que permitiría obtenerlo de 8,200 ton y con el esfuerzo de pesca (/RMS de 457 embarcaciones. La mortalidad por pesca (F = 0,43, fue 26,5% más alta que la mortalidad por pesca en el punto de referencia biológico (F0.1 = 0,33. La biomasa promedio del periodo 20062010 fue el 52% de su nivel óptimo (Est2006-2010 < 1. La declinación de la biomasa se aceleró a partir de 1999, en razón del aumento del esfuerzo de pesca. Los resultados indican que el recurso no ha sido saludable a pesar del decreto de la Reserva de la Biósfera, debido a que la zona núcleo no ha sido respetada como zona prohibida para la pesca y por el incremento del esfuerzo pesquero.

  5. ESQUIZO-Q: Un Instrumento para la Valoración del "Alto Riesgo Psicométrico" a la Psicosis

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    Eduardo Fonseca-Pedrero

    2010-01-01

    Full Text Available El paradigma de ¿alto riesgo psicométrico¿ tiene como finalidad la detección, mediante la utilización de autoinformes y a partir de su perfil de puntuaciones, de aquellos participantes con una mayor vulnerabilidad teórica de transitar hacia un trastorno psicótico en el futuro. La detección temprana de este tipo de individuos de riesgo pasa por disponer de adecuados instrumentos de evaluación que nos permitan tomar decisiones sólidas y fundadas a partir de sus puntuaciones. El principal objetivo de este estudio fue presentar el proceso de construcción y validación de un autoinforme de reciente creación denominado ESQUIZO-Q: Cuestionario Oviedo para la Evaluación de la Esquizotipia. El análisis de la estructura interna arrojó una solución tridimensional: Distorsión de la Realidad, Anhedonia y Desorganización Interpersonal. Los niveles de consistencia interna para las subescalas del ESQUIZO-Q oscilaron entre 0,62 y 0,90. Ningún ítem presentó un funcionamiento diferencial en función del sexo de los participantes. Asimismo, las subescalas del ESQUIZO-Q correlacionaron de forma moderada con las escalas de otros autoinformes que valoraban depresión, problemas comportamentales y rasgos de los trastornos de la personalidad. El ESQUIZO-Q es un instrumento de medida breve, sencillo y con adecuadas propiedades psicométricas, que puede ser utilizado como herramienta epidemiológica y como método de screening psicopatológico en población general adolescente. Futuras investigaciones deberían realizar estudios longitudinales con la finalidad de examinar la capacidad predictiva del ESQUIZO-Q.

  6. Desenvolvimento de barras de cereais à base de aveia com alto teor de fibra alimentar Development of oat based cereal bars with high dietary fiber content

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    Luiz Carlos Gutkoski

    2007-06-01

    Full Text Available A barra de cereal é um alimento nutritivo de sabor adocicado e agradável, fonte de vitaminas, sais minerais, fibras, proteínas e carboidratos complexos. O trabalho objetivou estudar o efeito da concentração de fibra alimentar e de açúcar na calda em barras de cereais elaboradas à base de aveia com alto teor de fibra alimentar. No estudo foram utilizados flocos, farelo e farinha de aveia, do cultivar UPFA 22, selecionado com base no teor de fibras e beta-glucanas. Os ingredientes secos e ligantes foram adquiridos no comércio local e utilizados na proporção de 70 e 30%, respectivamente, em quantidades definidas a partir de testes laboratoriais. O experimento foi realizado em delineamento composto central rotacional aplicável à metodologia de superfície de resposta, sendo avaliado o efeito da concentração de açúcar na calda (70, 75 e 80 °Brix e do teor de fibra alimentar da formulação (12, 16 e 20% na composição química, valor calórico, atividade de água, microbiologia e características sensoriais das barras de cereais. Os resultados das variáveis respostas foram tratados por análise de regressão múltipla. E foram utilizados no modelo matemático de segunda ordem os termos lineares, quadráticos e de interação, significativos. A aveia pode ser utilizada como ingrediente na elaboração de barras de cereais por apresentar textura, sabor e aparência adequados. O uso de aveia na formulação possibilita produzir barras de cereais com alto teor de fibra alimentar e fonte de beta-glucanas. As barras de cereais apresentam propriedades sensoriais agradáveis, similares às industrializadas e melhor aceitas quando elaboradas com média concentração de açúcar na calda e altos teores de fibra alimentar. As barras de cereais apresentam baixa atividade de água e atendem às especificações sanitárias, sendo estáveis durante 60 dias de armazenamento.Cereal bars are a nutritional food of sweetened and acceptable flavor

  7. Redes Atm de Alto Desempenho

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    Flávia Oliveira Santos de Sá Lisboa

    2015-12-01

    Full Text Available A tendência atual de integração de serviços de dados, voz e vídeo, estimulada pelo pleno sucesso da Internet, aumentou a demanda por maior banda e melhor desempenho nas redes de comunicação de dados. Neste contexto, a tecnologia ATM (Asynchronous Transfer Mode vem sendo utilizada na implementação de backbone de LANs e WANs, justamente por oferecer a possibilidade de integração de serviços com qualidade, alta escalabilidade e altas taxas de transferência em banda larga. Neste artigo serão abordados os principais conceitos relacionados à tecnologia ATM, suas vantagens e desvantagens em face de outras tecnologias (como Fast e Gigabit Ethernet, além de casos de sua utilização em empresas e instituições de ensino.

  8. El Universo a alto redshift

    Science.gov (United States)

    Alonso, M. V.

    The Universe we see today is the result of structures and galaxies that have been evolving since earlier times. Looking the evolution of the galaxy population at z ˜ 1 has emphasized the important role played by high redshift data. This is the case of the morphology - density relationship, where the morphological type of galaxies in distant clusters has given us a clear vision of evolutionary processes, partly led by environmental effects. I review part of the data available at high redshifts that are fundamental today to check the validity of galaxy formation models in reproducing local and basic galaxy properties. Briefly, I will comment about high redshift studies, a still little explored portion of the Universe, and the current strategies that allow us the study. In this sense, the epoch of reionization is essential for understanding the formation of structures because it is the phase where the first protogalaxies were formed, creating stars and enriching the intergalactic medium. Because of the great distances involved in these studies, gamma-ray bursts, quasars and Lyman-α galaxies are the best tools to study these earlier times. FULL TEXT IN SPANISH

  9. The Los Altos Writing Project.

    Science.gov (United States)

    Kraft, Richard F.

    The intent of this guide is to encourage teachers to have students write, both formally and informally, on a systematic basis. Three types of writing are emphasized: (1) journal writing; (2) research paper writing; and (3) essay writing. The section on journal writing includes a handout for the class explaining the purpose for journal writing and…

  10. Prevalência das ametropias e oftalmopatias em crianças pré-escolares e escolares em favelas do Alto da Boa Vista, Rio de Janeiro, Brasil Prevalence of the ametropias and eye diseases in preschool and school children of Alto da Boa Vista favelas, Rio de Janeiro, Brazil

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    Abelardo de Souza Couto Júnior

    2007-10-01

    Full Text Available OBJETIVO: Estabelecer a prevalência das ametropias e oftalmopatias, no ano de 2001, em população pré-escolar e escolar de favelas do Alto da Boa Vista, Rio de Janeiro, Brasil. MÉTODOS: Estudo observacional do tipo transversal, durante campanha de saúde ocular na rede pública de ensino. Crianças com acuidade visual inferior a 0,8 ou com anormalidades foram triadas por voluntários treinados para serem avaliadas por oftalmologistas no Instituto Benjamin Constant. RESULTADOS: Foram avaliadas 1800 crianças no total. Destas, 306 (17,00 % do total foram encaminhadas ao IBC. Houve 183 (10,17% do total e 59,80% das triadas que receberam alta por apresentarem visão melhor que 0,8. A prevalência dos erros refrativos foi de 3,50% (ametropias positivas , 1,78%; ametropias negativas, 1,06% e astigmatismos mistos, 0,67%. A prevalência das oftalmopatias foi de 4,83%. (ambliopia teve prevalência de 2,00%, manifestações do estrabismo, 1,72% e outras causas 1,11%. CONCLUSÃO: Demonstrou-se a prevalência dos principais distúrbios oftalmológicos infantis nas favelas do Alto da Boa Vista e ressaltou-se a necessidade de campanhas para bom êxito no desenvolvimento da acuidade visual das crianças.PURPOSE: To estabilish the prevalence of the ametropias and eye diseases, in the year 2001, within a preschool and school population in Alto da Boa Vista favelas (slum, in the city of Rio de Janeiro, Brazil. METHODS: Transversal observational study during an ocular health campaign in public education schools. The children that have shown visual acuity fewer than 0.8 or abnormally were referred by trained volunteers to avaliation by ophthalmologists from the Benjamin Constant Institute. RESULTS: From the 1800 children who were examined, 306 (17.00% were referred to the ophthalmologic examination. There were 183 children (10.17% from total and 59.80% from referred that were dismissed for presenting visual acuity better than 0.8. The refractive errors

  11. Avaliação da conduta conservadora na lesão intraepitelial cervical de alto grau Evaluación de la conducta conservadora en la lesión intraepitelial cervical de alto grado Evaluation of conservative management of high-grade cervical squamous intraepithelial lesion

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    Nelson Shozo Uchimura

    2012-06-01

    Full Text Available OBJETIVO: Analisar a associação entre a conduta conservadora em lesão intraepitelial cervical de alto grau com o índice de recidiva da neoplasia e faixa etária. MÉTODOS: Estudo transversal e retrospectivo realizado com 509 mulheres (15-76 anos atendidas no período de 1996 a 2006, com colpocitologia oncótica alterada, em um serviço público de referência em Maringá, PR. Os dados foram coletados dos prontuários médicos e estudadas as variáveis diagnóstico definitivo, tipos de tratamento, ocorrência da lesão e recidivas, analisados por meio de testes de associação de qui-quadrado de Pearson e teste exato de Fisher. RESULTADOS: A lesão intraepitelial cervical de alto grau ocorreu em 168 casos; destes, 31 mulheres foram submetidas à amputação cônica, 104 a cirurgias de alta frequência, nove histerectomizadas e 24 receberam conduta conservadora. Dentre as mulheres com lesão de alto grau e tratadas de forma conservadora, oito (33,3% recidivaram, enquanto dentre as submetidas à conduta não conservadora dez (6,9% recidivaram, sendo essa diferença estatisticamente significante (p = 0,0009, RP = 4,8 (IC95% 2,11;10,93. Para aquelas que fizeram o seguimento clínico-citológico, três (30,0% e, dentre as cauterizadas, cinco (35,7% recidivaram no prazo de três anos, sem diferença significante (p = 0,5611. A recidiva abaixo e acima de 30 anos ocorreu, respectivamente, em sete (13,8% e 11 (12,2% mulheres (p = 0,9955. CONCLUSÕES: A idade da mulher não influencia o prognóstico de recidiva. O tratamento conservador deve ser indicado como conduta de exceção, dada a alta taxa de recidiva, e o seguimento deve ser rigoroso, com acompanhamento citológico e colposcópico de até três anos, período em que ocorre a maioria das recidivas.OBJETIVO: Analizar la asociación entre la conducta conservadora en lesión intraepitelial cervical de alto grado con el índice de reincidencia de la neoplasia y grupo etario. MÉTODO: Estudio

  12. Racionalidade e métodos: registro da prática clínica em pacientes de