WorldWideScience

Sample records for argentine arn

  1. Arne Zettersten: obituary

    DEFF Research Database (Denmark)

    Lock, Charles

    2015-01-01

    Obituary of Arne Zettersten, Professor of English Language at the University of Copenhagen (1934-2015)......Obituary of Arne Zettersten, Professor of English Language at the University of Copenhagen (1934-2015)...

  2. Arne Jacobsens eget hus

    DEFF Research Database (Denmark)

    Thule Kristensen, Peter

    2007-01-01

    Beskrivelse og analyse af arkitekten Arne Jacobsens eget rækkehus på Strandvejen 413. Bogen er udgivet af Realea A/S, der ejer huset, og som i 2007 har restaureret det.......Beskrivelse og analyse af arkitekten Arne Jacobsens eget rækkehus på Strandvejen 413. Bogen er udgivet af Realea A/S, der ejer huset, og som i 2007 har restaureret det....

  3. Arne Jacobsens eget hus

    DEFF Research Database (Denmark)

    Thule Kristensen, Peter

    2007-01-01

    Beskrivelse og analyse af arkitekten Arne Jacobsens eget hus på Godfred Rodes Vej 2. Bogen er udgivet af Relea A/S, der ejer huset, og som i 2007 har restaureret det.......Beskrivelse og analyse af arkitekten Arne Jacobsens eget hus på Godfred Rodes Vej 2. Bogen er udgivet af Relea A/S, der ejer huset, og som i 2007 har restaureret det....

  4. Arne Magnusson 350 år

    DEFF Research Database (Denmark)

    Hansen, Anne Mette; Reitz, Suzanne

    2013-01-01

    Arne Magnussons 350-års-fødselsdag i november 2013 blev markeret med en fotoudstilling på Det Humanistiske Fakultetsbibliotek af håndskrifter i hans samling. Se:......Arne Magnussons 350-års-fødselsdag i november 2013 blev markeret med en fotoudstilling på Det Humanistiske Fakultetsbibliotek af håndskrifter i hans samling. Se:...

  5. Knowledge management in the Argentine Nuclear Regulatory Authority

    International Nuclear Information System (INIS)

    In 2006, the Argentine Nuclear Regulatory Authority has initiated a regulatory knowledge management process to face the loss of knowledge resulting from retiring experts, the generation gap, and the existing need to train new human resources. A number of projects have been started together with the technical assistance of the National Public Administration Institute to preserve knowledge and render it explicit for the coming generations. These projects include 'The History of the Expert's Learning Process' in which the majority of the most critical experts have been interviewed so far. The results of this project help envision a training structure and prospective projects. An Internet Site has also been created on the Intranet in order to render knowledge explicit and facilitate the tools for knowledge management initiatives. Furthermore, ARN's knowledge map project has also been started. (author)

  6. Argentine radiation protection society

    International Nuclear Information System (INIS)

    The Argentine Radiation Protection Society (SAR) is a non profit society, member of IRPA. It was originally launched in 1987 and a formal constitution was adopted in 1983. Presently, SAR has 220 active members, professionals and technicians dedicated to a variety of disciplines related to different radiation protection aspects: medicine, industry, research and teaching. The basic SAR objectives are: to promote research and knowledge exchange on radiation protection topics and related disciplines; to promote the comprehension of radiation protection criteria with regard to existence and handling of radioactive and fissile materials and any other radiation sources; to foster the conception of radiation protection as a professional discipline and to contribute to its permanent improvement; to promote the diffusion of the information related to all radiation protection and nuclear safety aspects, and radiation protection standards and recommendations, not only within the scientific, technical and academic areas, but also to general public

  7. Argentine National Pharmacopoeia (Argentine Codex Medicamentarius). 6. ed., suppl. 1982.

    International Nuclear Information System (INIS)

    Standards of mandatory application, established by Law No. 22729 of February, 1983, on radiopharmaceuticals and radiosterilization of products for medical use, issued as a supplement to the text of the Argentine National Pharmacopoeia. In particular, the general characteristics, identification and purity tests, radioactivity valuation, top date of utilization, and form of conservation of different radiopharmaceuticals are described. (C.A.K.)

  8. Arne Niit sai Kuldnõela / Arne Niit ; interv. Valdo Jahilo

    Index Scriptorium Estoniae

    Niit, Arne, 1964-

    2001-01-01

    Intervjuu rõivadisainer Arne Niiduga, kes sai parima Eesti moekunstniku aastaauhinna Kuldnõela 2000. a. loomingu eest. Väike Kuldnõel, mis on mõeldud noorele disainerile, anti Riina Põldroosile. Kuldnõela auhinna pälvinud moekunstnike loetelu.

  9. Arne Maasiku ideaalselt loomulikud inimesed ja majad / Arne Maasik ; intervjueerinud Tanel Veenre

    Index Scriptorium Estoniae

    Maasik, Arne

    2009-01-01

    Arne Maasik Tallinnas ArtDepoo Galeriis 4. aprillini avatud enda ja Armin Kõomäe fotonäitusest "Otsijad" (lavastaja: Rainer Sarnet, kunstnik-rekvisiitor: Jaanus Valt), endast, huvist linna vastu, plaanist minna USA-sse 2008. a. surnud fotograaf Eric Soovere arhiive läbi töötama

  10. Contemporary Argentine Cinema during Neoliberalism

    Science.gov (United States)

    Rocha, Carolina

    2009-01-01

    In this article I analyze contemporary Argentine cinematic production assessing the impact of Law 24,377 that was implemented in 1995 and that provided much-needed funds for national productions. By looking at film production and consumption, the emergence of young filmmakers and the performance of both commercial films and those belonging to the…

  11. ATM-dialoog Arne Maasiku ainetel / Andreas Trossek, Aleksander Tsapov

    Index Scriptorium Estoniae

    Trossek, Andreas, 1980-

    2008-01-01

    Kuni 17. II Tallinna Kunstihoones avatud Arne Maasiku fotode näitusest (kuraator Karin Paulus, kujundaja Urmas Luure) ja fotoalbumist "Fotod : 1994-2007" (tekstide autorid Eero Epner, Peeter Laurits, Jan Kaus, kujundaja Martin Pedanik)

  12. Argentine nuclear energy standardization activities

    International Nuclear Information System (INIS)

    The International Organization for Standardization (ISO) has more than 200 Technical Committees that develop technical standards. During April 2004 took place in Buenos Aires the 14th Plenary of the ISO/TC 85 Nuclear Energy Committee. During this Plenary issues as Nuclear Terminology, Radiation Protection, Nuclear Fuels, Nuclear Reactors and Irradiation Dosimetry was dealt with. 105 International delegates and 45 National delegates (belonging to CNEA, ARN, NASA, INVAP, CONUAR, IONICS and other organizations) attended the meetings. During this meeting ISO/TC 85 changed its scope; the new scope of the Committee is 'Standardization in the fields of peaceful applications of nuclear energy and of the protection of individuals against all sources of ionizing radiations'. This work summarizes the most important advances and resolutions about the development of standards taken during this meeting as well as the main conclusions. (author)

  13. Arne - Exploring the Mare Tranquillitatis Pit

    Science.gov (United States)

    Robinson, M. S.; Thangavelautham, J.; Wagner, R.; Hernandez, V. A.; Finch, J.

    2014-12-01

    Lunar mare "pits" are key science and exploration targets. The first three pits were discovered within Selene observations [1,2] and were proposed to represent collapses into lava tubes. Subsequent LROC images revealed 5 new mare pits and showed that the Mare Tranquillitatis pit (MTP; 8.335°N, 33.222°E) opens into a sublunarean void at least 20-meters in extent [3,4]. A key remaining task is determining pit subsurface extents, and thus fully understanding their exploration and scientific value. We propose a simple and cost effective reconnaissance of the MTP using a small lander (lander there should be enough time to execute ten flights with each pit-bot. The pit-bots are 30-cm diameter spherical flying robots [5,6,7] equipped with stereo cameras, temperature sensors, sensors for obstacle avoidance and a laser rangefinder. Lithium hydride [5,6] and water/hydrogen peroxide power three micro-thrusters and achieve a specific impulse of 350-400 s. Each pit-bot can fly for 2 min at 2 m/s for more than 100 cycles; recharge time is 20 min. Arne will carry a magnetometer, thermometer, 2 high resolution cameras, and 6 wide angle cameras and obstacle avoidance infrared sensors enabling detailed characterization of extant sublunarean voids. [1] Haruyama et al. (2010) 41st LPSC, #1285. [2] Haruyama et al. (2010) GRL, 36, dx.doi.org/ 10.1029/2009GL0406355. [3] Robinson et al (2012) PSS, 69, dx.doi.org/ 10.1016/j.pss.2012.05.008 [4] Wagner and Robinson (2014) Icarus, dx.doi.org/10.1016/j.icarus.2014.04.002. [5] Thangavelautham et al. (2012) IEEE ICRA [6] Strawser et al. (2014) J. Hydrogen Energy. [7] Dubowsky et al. (2007) Proc. CLAWAR.

  14. Nucleoelectric energy in the Argentine Republic

    International Nuclear Information System (INIS)

    This text intends to reflect a coherent and sustained management in the Argentine nucleoelectrical policy. Through individual thematic unities connected between them, the basic structure consists of three principal parts. The first part introduces a broad panorama of atomic energy in the world, in the international treaties and organizations. Also the technical, economic and political aspects which had influence in the Argentine nuclear policies, particularly in the electrical production with nuclear power plants, are considered in this part. The second part describes the historical sequence of the principal achievements of the Argentine National Atomic Energy Commission (CNEA) in the nuclear industry. A mention of particular criteria adopted in each situation and the intention and motivations that guide the decisions are also considered. Finally, an actual balance of the nucleoelectrical technology situation in Argentine and in the world is presented. (Author)

  15. Arne Grønningsæter: Kõige tähtsam on eetikaalane teadlikkus / Arne Grønningsæter ; intervjueerinud Regina Lind

    Index Scriptorium Estoniae

    Grønningsæter, Arne

    2008-01-01

    Norra sotsiaaltöö ja tööuuringute instituudi Fafo teadur ja programmijuht Arne Grønningsæter selgitab eetika tähtsust sotsiaaltöös ja Norra eetikakoodeksi põhimõtteid. Lisatud: Arne Grønningsæter

  16. The worldwide expansion of the Argentine ant

    DEFF Research Database (Denmark)

    Vogel, Valerie; Pedersen, Jes Søe; Giraud, Tatiana;

    2010-01-01

    ) and secondary introductions (from sites with established invasive supercolonies) were important in the global expansion of the Argentine ant. In combination with the similar social organization of colonies in the native and introduced range, this indicates that invasiveness did not evolve recently as a unique...

  17. Electrospray ionization FT-ICR mass spectrometry of ARN naphthenic acids in crudes : preconcentration and quantification

    Energy Technology Data Exchange (ETDEWEB)

    Mapolelo, M.M.; Rodgers, R.P.; Marshall, A.G. [Florida State Univ., Tallahassee, FL (United States). Dept. of Chemistry and Biochemistry; Florida State Univ., Tallahassee, FL (United States). Cyclotron Resonance Program, National High Magnetic Field Laboratory

    2008-07-01

    The deposition of naphthenate solids and formation of sodium soaps in oil production equipment are known to create flow assurance problems for oilfield operators. Calcium naphthenate formation depends largely on tetraprotic naphthenic acids known as ARN acids in crude oil, whereas sodium naphthenates originate from less substituted lower molecular weight naphthenic acids. This study attempted to preconcentrate and quantify ARN-type acids in whole crude oils. Fourier transform ion cyclotron resonance (FT-ICR) mass spectroscopy (MS) provided detailed acidic speciation for all crudes and deposits analyzed. The preconcentration step involved bubbling ammonia into toluene-diluted crudes known to have ARN-type acids. ARN acids from the crystals increased from undetectable in the parent crude, to the most abundant acid species in the extract mass spectrum. A pure ARN acid standard was prepared for quantitation from successive cleaning and acid digestion of a naphthenate deposit. Analysis of the standard by negative-ion electrospray ionization (ESI) FT-ICR MS showed only ARN acid species. The paper described how API gravity, solvent systems and the paraffinic versus aromatic composition in the crude oil can influence crystal formation. Correlation of FT-ICR MS data of the respective crudes known to contain ARN acids naturally and crudes spiked with ARN acid standard were discussed and the significance of the preconcentration step was highlighted as a method to enhance the detection of ARN acids in crudes.

  18. Argentine hemorrhagic fever: a primate model.

    Science.gov (United States)

    Weissenbacher, M C; Calello, M A; Colillas, O J; Rondinone, S N; Frigerio, M J

    1979-01-01

    Experimental Junin virus infection of a New World primate, Callithrix jacchus, was evaluated. The virus produced anorexia, loss of weight, thrombocytopenia, leukopenia, and hemorrhagic and neurological symptoms and terminated in death. Virus was recovered from urine, blood samples and all tissues taken at autopsy. These preliminary observations show that several aspects of the experimental disease in C. jacchus are quite similar to severe natural Argentine hemorrhagic fever of man.

  19. Sesquiterpenoids of Senecio bonariensis Hook. & Arn., Asteraceae Sesquiterpenóides de Senecio bonariensis Hook. & Arn., Asteraceae

    Directory of Open Access Journals (Sweden)

    Chana de Medeiros da Silva

    2010-03-01

    Full Text Available From the leaves of Senecio bonariensis Hook. & Arn. three sesquiterpenoids were isolated. β-caryophyllene (1, β-caryophyllene oxide (2 and germacrene D (3 were characterized by GC-EI-MS, IR, ¹H and 13C-NMR data. Their ecological and chemotaxonomical significance for the genus Senecio are discussed, as well as the biosynthetic correlation between the isolated substances. The antimicrobial activity of substances 1 and 2 were evaluated by the microdilution method against bacterial and fungal strains. Both compounds did not inhibit the microorganism growth at the tested concentrations.Das folhas de Senecio bonariensis Hook. & Arn. foram isolados três sesquiterpenóides. β-Cariofileno (1, óxido de β-cariofileno (2 e germacreno D (3 foram identificados por CG-IE-EM, IV, ¹H and 13C-RMN. A importância ecológica e quimiotaxionômica para o gênero Senecio é discutida, assim como a correlação biossintética entre as substâncias isoladas. As substâncias 1 e 2 tiveram sua atividade antimicrobiana avaliada pelo método de microdiluição em caldo contra cepas bacterianas e fúngicas. Ambas não inibiram o crescimento microbiano nas concentrações testadas.

  20. The Argentine-Brazilian fast reactor programme

    International Nuclear Information System (INIS)

    This paper summarizes the Argentine-Brazilian Fast Reactor Programme and gives reasons for the decision of a binational venture. The work carried out by both countries is described, showing how they complement each other, with the corresponding saving of resources. The main objectives of the Programme and tentative schedules in three progressing integrating stages are given and the present nuclear know-how in each country is identified as a good starting point. The paper also gives some details regarding the economical and human resources involved. (author). 1 graph

  1. New steroidal saponin from Antigonon leptopus Hook. and Arn.

    Directory of Open Access Journals (Sweden)

    Maria Karmella L Apaya

    2014-01-01

    Full Text Available Background: Antigonon leptopus Hook. and Arn., Polygonaceae (cadena de amor, is a herbal remedy for pain and gout-like symptoms in the Philippines. The methanol extract of A. leptopus have shown strong inhibitory action against xanthine oxidase. Objective: To isolate and identify the compound responsible for the xanthine oxidase inhibitory action. Materials and Methods: A bioassay-guided isolation scheme using an in vitro assay for the inhibition of xanthine oxidase was employed. The structure was established using spectroscopic analysis and chemical methods. Results: The isolated compound was determined to be a noncompetitive inhibitor of xanthine with an IC50 of 1.79 μg/mL. Conclusion: The isolated compound may represent a new class of xanthine oxidase inhibitors.

  2. Ninth Argentine congress on biology and nuclear medicine; fourth Southernmost sessions of ALASBIMN (Latin-American Association of Biology and Nuclear Medicine); first Spanish-Argentine congress on nuclear medicine; first Argentine sessions on nuclear cardiology

    International Nuclear Information System (INIS)

    This work deals with all the papers presented at the 9. Argentine congress on biology and nuclear medicine; IV Southernmost sessions of ALASBIMN; I Spanish-Argentine congress on nuclear medicine and I Sessions Argentine sessions on nuclear cardiology held in Buenos Aires, Argentina, from October 14 - 18, 1991

  3. TeliaSonera jääb pakutud hinna juurde / Per-Arne Blomquist

    Index Scriptorium Estoniae

    Blomquist, Per-Arne

    2009-01-01

    TeliaSonera grupi finantsdirektor Per-Arne Blomquist vastab küsimustele, mis puudutavad Eesti Telekomi aktsiatele ostupakkumise tegemist ning võimalikke muudatusi ettevõttes pärast Eesti Telekomi aktsiate omandamist

  4. Koolitamine : andmisrõõm või edevus? / Ants Vasar, Arne Kaasik, Hele Hammer

    Index Scriptorium Estoniae

    Vasar, Ants

    2007-01-01

    Küsimusele, miks olete hakanud ettevõtjana koolitajaks, vastavad ASi Viru Keskus juhatuse liige Ants Vasar, Columbus IT Partner Eesti ASi pertner ja nõukogu esimees Arne Kaasik ja Amserv Grupi finantsdirektor Hele Hammer

  5. The application of radioisotopes in the Argentine technology

    International Nuclear Information System (INIS)

    The different applications of radioisotopes: as sealed sources or tracers, as well as activation analysis have cast a new light on Argentine engineering and industry. The Argentine Atomic Energy Commission is carrying out an active plan for the developement and promotion of these techniques since the 60's. This report describes and analyzes the most outstanding applications, and brings up to date other previous papers on the same subject. It suggests some ideas for achieving a complete penetration of radioisotope techniques into Argentine technology. It also outlines some future perspectives, based on present statistical data. (author)

  6. Argentine-Brazilian declaration on common nuclear policy

    International Nuclear Information System (INIS)

    The document reproduces the texts of the speeches made by the Presidents of Argentina and Brazil at Foz do Iguacu, Brazil, on 28 November 1990, at the signing of the Argentine-Brazilian Declaration on Common Nuclear Policy

  7. Exploration of Possible Astroblemes in the Argentine Puna

    Science.gov (United States)

    Acevedo, R. D.; Alonso, R.; Rocca, M.; Klajnik, K.; Tálamo, E.

    2014-09-01

    Potential three new astrobleme sites have been detected by remote sensors and checked in situ in Argentine Puna: an elevated plateau that it has remained stable and invariable across long geological periods.

  8. Framing crime: moral panic in Argentine newspapers

    Directory of Open Access Journals (Sweden)

    Natalia ARUGUETE

    2013-01-01

    Full Text Available Carolina Píparo was shot a few minutes after withdrawing cash from a bank branch. This case outraged the public opinion because she was eight months pregnant at the moment of the assault. She had to undergo a caesarean section and her baby only survived one week. Through an exploratory and inductive research we will analyze how the Argentine newspapers presented the case. We aim at elaborating a content analysis code book that can be validated in future similar researches on the subject. We apply the Framing theory in order to detect the frames used in the news coverage and to observe if they are compatible with the idea of «moral panic» proposed by Stanley Cohen.

  9. Pheromone disruption of Argentine ant trail integrity

    Science.gov (United States)

    Suckling, D.M.; Peck, R.W.; Manning, L.M.; Stringer, L.D.; Cappadonna, J.; El-Sayed, A. M.

    2008-01-01

    Disruption of Argentine ant trail following and reduced ability to forage (measured by bait location success) was achieved after presentation of an oversupply of trail pheromone, (Z)-9-hexadecenal. Experiments tested single pheromone point sources and dispersion of a formulation in small field plots. Ant walking behavior was recorded and digitized by using video tracking, before and after presentation of trail pheromone. Ants showed changes in three parameters within seconds of treatment: (1) Ants on trails normally showed a unimodal frequency distribution of walking track angles, but this pattern disappeared after presentation of the trail pheromone; (2) ants showed initial high trail integrity on a range of untreated substrates from painted walls to wooden or concrete floors, but this was significantly reduced following presentation of a point source of pheromone; (3) the number of ants in the pheromone-treated area increased over time, as recruitment apparently exceeded departures. To test trail disruption in small outdoor plots, the trail pheromone was formulated with carnuba wax-coated quartz laboratory sand (1 g quartz sand/0.2 g wax/1 mg pheromone). The pheromone formulation, with a half-life of 30 h, was applied by rotary spreader at four rates (0, 2.5, 7.5, and 25 mg pheromone/m2) to 1- and 4-m2 plots in Volcanoes National Park, Hawaii. Ant counts at bait cards in treated plots were significantly reduced compared to controls on the day of treatment, and there was a significant reduction in ant foraging for 2 days. These results show that trail pheromone disruption of Argentine ants is possible, but a much more durable formulation is needed before nest-level impacts can be expected. ?? 2008 Springer Science+Business Media, LLC.

  10. Serratia marcescens arn, a PhoP-regulated locus necessary for polymyxin B resistance.

    Science.gov (United States)

    Lin, Quei Yen; Tsai, Yi-Lin; Liu, Ming-Che; Lin, Wei-Cheng; Hsueh, Po-Ren; Liaw, Shwu-Jen

    2014-09-01

    Polymyxins, which are increasingly being used to treat infections caused by multidrug-resistant bacteria, perform poorly against Serratia marcescens. To investigate the underlying mechanisms, Tn5 mutagenesis was performed and two mutants exhibiting increased polymyxin B (PB) susceptibility were isolated. The mutants were found to have Tn5 inserted into the arnB and arnC genes. In other bacteria, arnB and arnC belong to the seven-gene arn operon, which is involved in lipopolysaccharide (LPS) modification. LPSs of arn mutants had greater PB-binding abilities than that of wild-type LPS. Further, we identified PhoP, a bacterial two-component response regulator, as a regulator of PB susceptibility in S. marcescens. By the reporter assay, we found PB- and low-Mg2+-induced expression of phoP and arn in the wild-type strain but not in the phoP mutant. Complementation of the phoP mutant with the full-length phoP gene restored the PB MIC and induction by PB and low Mg2+ levels, as in the wild type. An electrophoretic mobility shift assay (EMSA) further demonstrated that PhoP bound directly to the arn promoter. The PB challenge test confirmed that pretreatment with PB and low Mg2+ levels protected S. marcescens from a PB challenge in the wild-type strain but not in the phoP mutant. Real-time reverse transcriptase-PCR also indicated that PB serves as a signal to regulate expression of ugd, a gene required for LPS modification, in S. marcescens through a PhoP-dependent pathway. Finally, we found that PB-resistant clinical isolates displayed greater expression of arnA upon exposure to PB than did susceptible isolates. This is the first report to describe the role of S. marcescens arn in PB resistance and its modulation by PB and Mg2+ through the PhoP protein.

  11. ANTIHYPERGLYCEMIC ACTIVITY OF Exacum wightianum Arn. AN ENDEMIC MEDICINAL PLANT.

    Directory of Open Access Journals (Sweden)

    Madathupatti Ramanathan Udhayasankar

    2012-07-01

    Full Text Available An attempt was made to study the beneficial effects of ethanol extract of Exacum wightianum Arn. (Gentianaceae on its antihyperglycemic activity in streptozotocin induced diabetic rats. The pilot studies were carried after oral administration at doses of ethanolic extract of E. wightianum 100, 200, 500 and 1000 mg/kgb.wt. in sub-acute study. In diabetic induced rats fed with E. wightianum ethanol extract at 100 and 200 mg/kg body b.wt., the fasting plasma glucose levels were reduced to normal body and liver weight were found to be increased. Where as blood glucose, protein, albumin and creatinine levels were estimated after two weeks. Theextract significantly inhibited the induction of albuminuria, proteinemia and uremia. The present study clearly indicated a significant antidiabetic activity with the ethanol extract of E. wightianum supports the traditional usage of the plant by Ayurvedic physicians for the control of diabetes. Also the extract is useful in preventing the incidence of long term complications of diabetes mellitus.

  12. ARN: analysis and prediction by adipogenic professional database.

    Science.gov (United States)

    Huang, Yan; Wang, Li; Zan, And Lin-Sen

    2016-01-01

    Adipogenesis is the process of cell differentiation by which mesenchymal stem cells become adipocytes. Extensive research is ongoing to identify genes, their protein products, and microRNAs that correlate with fat cell development. The existing databases have focused on certain types of regulatory factors and interactions. However, there is no relationship between the results of the experimental studies on adipogenesis and these databases because of the lack of an information center. This information fragmentation hampers the identification of key regulatory genes and pathways. Thus, it is necessary to provide an information center that is quickly and easily accessible to researchers in this field. We selected and integrated data from eight external databases based on the results of text-mining, and constructed a publicly available database and web interface (URL: http://210.27.80.93/arn/ ), which contained 30873 records related to adipogenic differentiation. Then, we designed an online analysis tool to analyze the experimental data or form a scientific hypothesis about adipogenesis through Swanson's literature-based discovery process. Furthermore, we calculated the "Impact Factor" ("IF") value that reflects the importance of each node by counting the numbers of relation records, expression records, and prediction records for each node. This platform can support ongoing adipogenesis research and contribute to the discovery of key regulatory genes and pathways. PMID:27503118

  13. 75 FR 53731 - Culturally Significant Objects Imported for Exhibition Determinations: “Contemporary Argentine...

    Science.gov (United States)

    2010-09-01

    ... Culturally Significant Objects Imported for Exhibition Determinations: ``Contemporary Argentine Masterworks... of August 28, 2000, I hereby determine that the objects to be included in the exhibition ``Contemporary Argentine Masterworks,'' imported from abroad for temporary exhibition within the United...

  14. Re-defining Anglo-Argentine literature: from travel writing to travelling identities

    OpenAIRE

    Ferradas, Claudia Mónica

    2011-01-01

    This study proposes a definition of Anglo-Argentine literature, a literary corpus that has not been explicitly defined, and provides a reading list of Anglo-Argentine works on the basis of that definition. The research is based on the presupposition that Anglo-Argentine texts can be used to contribute to an intercultural approach to language and literature teaching in the Argentine higher education context. Such texts can encourage reflection on how writing on Argentina in English has co...

  15. Anatomia da madeira de Acacia bonariensis Gill. ex Hook. et Arn. Wood anatomy of Acacia bonariensis Gill. ex Hook. et Arn.

    Directory of Open Access Journals (Sweden)

    José Newton Cardoso Marchiori

    1996-08-01

    Full Text Available O objetivo do presente trabalho é a descrição anatômica da madeira de Acacia bonariensis Gill. Hook. et Arn. A estrutura anatômica é comparada com outras espécies sul-brasileiras do mesmo gênero. A presença de raios multisseriados estreitos e fibras septadas permitem classificar a espécie na série Vulgares Bentham ou sub-gênero Aculeiferum Vassal.The wood anatomy of Acacia bonariensis Gill. ex Hook. et Arn. is described and compared with other south-american Acacias. The presence of narrow multisseriate rays and libriform fibres, observed in the wood, are commonly found among species of the series Vulgares Benth. or sub-genus Aculeiferum Vassal.

  16. From 1962 the teaching of Methodology of Radioisotopes is continuous in the University of Buenos Aires of the Argentine Republic

    International Nuclear Information System (INIS)

    . Formation of university extension: f) Methodology of Radioisotopes like Technicature. From 1962, the training of technicians was made parallel to that of professionals. From 1997 a Specific Course of Technicians in Nuclear Medicine is dictated, with an own curricular organization and chord to the basic formation of the assistants and its particular professional expectation. All the courses are credited by the Argentine Nuclear Regulatory Authority (ARN). The approval requires of a written exam and a colloquy in which the assistants demonstrate to be able to implement the measures of radiological protection in their labor environments. In their dictation participate professionals of the more high academic level (Ph.D.) and noted member specialists of the ARN. (Author)

  17. Bromus carinatus Hook. et Arn. en Puccinellia distans (L.) Parl. in Midden-Nederland

    NARCIS (Netherlands)

    Floristenclub Gelderse Vallei,

    1979-01-01

    The authors mention the occurrence of two grasses, Bromus carinatus Hook, et Arn. (fig. 1) and Puccinellia distans (L.) Parl. (fig. 2) in the central part of the Netherlands. The first is a naturalised adventitious plant, the other a species of saline habitats and is spreading through this part of o

  18. Tõeline modernist Allan Murdmaa / Toivo Tammik, Arne Maasik, Martin Pedanik, Heie Treier ; intervjueerinud Reet Varblane

    Index Scriptorium Estoniae

    2009-01-01

    Allan Murdmaast (4. 08. 1934-15. 11. 2009) vestlevad 18. novembril Arhitektuuri- ja Disainigaleriis avatud Allan Murdmaa näituse ja raamatu "Monumentaalne : Allan Murdmaa" autorid arhitektid Toivo Tammik ja Arne Maasik ning graafiline disainer Martin Pedanik, lisaks kunstiteadlane Heie Treier

  19. Maintaining Roads : The Argentine Experience with Output-Based Contracts

    OpenAIRE

    Liautaud, Gerard

    2001-01-01

    The Argentine government is using output-based contracts with the private sector for rehabilitation and maintenance of its nonconcessioned road network. The multiyear lump sum contracts, funded by the government, specify required road service outputs and use incentive-based payment schedules to ensure the quality of the work. After three years of operation the 60 contracts (averaging US$10...

  20. A view on the future of Argentine nuclear exports

    International Nuclear Information System (INIS)

    In order to anticipate the possibilities of future nuclear technology exports, the technological capacities of the organizations and companies that make up the Argentine nuclear sector are analyzed together with the evolution of their possible markets. The main export opportunities are seen in the field of the research reactors, nuclear fuel elements, heavy water and radioisotopes for medical and industrial applications

  1. Sino-Argentine SLR station making new progress

    Institute of Scientific and Technical Information of China (English)

    2009-01-01

    @@ The Sino-Argentine satellite laser ranging (SLR) system ranks second in the pass total of satellites it has observed among the SLR satellite observatories worldwide, according to statistics of the International Laser Ranging Service from October 2007 to September 2008. In addition, it tops the world in observing high orbit satellites, a difficult task to perform.

  2. The Mindful Attention Awareness Scale (MAAS) in an Argentine Population

    Science.gov (United States)

    Montes, Silvana Andrea; Ledesma, Rubén Daniel; García, Natalia Mariana; Poó, Fernando Martín

    2014-01-01

    The purpose of this study was to provide evidence of validity for the Mindful Attention Awareness Scale scores in an Argentine sample (Spanish-language version). Results indicated satisfactory psychometric properties (a one-factor structure, good item discrimination, high reliability, and significant correlations with additional measures). This…

  3. Participation of ARN-Argentina in the quality assessment program, EML-USDOE since 200-2001

    International Nuclear Information System (INIS)

    The Nuclear Regulatory Authority (ARN) participates every six months in the Quality Assessment Program (QAP), carried out by the Environmental Measurements Laboratory - United States Department Of Energy (EML-USDOE). The aim of this participation is to assess the quality of the radiochemical determinations and alpha, beta, gamma measurements, that ARN realises routinely. The analysed matrix are: water, filter, soil and vegetable. In the present work, the results of the ARN participation in the last four intercomparisons, period 2000-2001, are detailed and analysed statistically. The results are compared with obtained ones by all the laboratories. (author)

  4. Chemical and anti-ulcer evaluation of Jodina rhombifolia (Hook. & Arn.) Reissek extracts

    OpenAIRE

    Jarbas A. Montanha; Eloir P. Schenkel; Alexandre T. Cardoso-Taketa; Ana P. Dresch; Augusto Langeloh; Eliane Dallegrave

    2009-01-01

    Jodina rhombifolia (Hook. & Arn.) Reissek (Santalaceae) is a medicinal plant popularly used as an anti-ulcer medicine. The plant native from Southern Brazil was chemically investigated and tested for its in vivo gastric anti-ulcer property by chloride acid/ethanol model. The chromatographic analysis of the hydroethanol extract of its leaves revealed the presence of C-glycosylflavonoids. From the n-butanol fraction of the hydroethanol extract of its aerial parts, vicenin-2 was isolated as the ...

  5. Edaphic characteristics of Austrian pine (Pinus nigra Arn.) forests in the Višegrad area

    OpenAIRE

    Blagojević Velibor D.; Knežević Milan N.; Košanin Olivera D.; Kapović-Solomun Marijana B.; Lučić Radovan J.; Eremija Saša M.

    2016-01-01

    This paper presents the results of soil research in Austrian pine (Pinus nigra Arn.) forest communities in the Višegrad area, carried out to determine the basic soil characteristics and eco-production potential of forest habitats as an important basis and framework for the successful management of these forests on the principles of sustainable development. Austrian pine forests in this region are an important and ecologically valuable community. The complex...

  6. PHARMACOGNOSTIC AND ANATOMICAL STUDIES OF ANTIGONON LEPTOPUS HOOK. AND ARN.: A PROMISING MEDICINAL CLIMBER

    OpenAIRE

    Rahaman Chowdhury Habibur; Saha Sathi

    2013-01-01

    The evaluation of quality and purity of crude drugs by means of various parameters is the most important aspect of pharmacognosy. The present study deals with pharmacognostic characterization of Antigonon leptopus Hook. and Arn. of the family Polygonaceae. The tubers of it are used by the tribal people as tonic and nutritious food. The parameters like micromorphological, anatomical, phytochemical and physical constants have been employed for the pharmacognostical evaluation of different parts...

  7. Other-initiated repair in Argentine Sign Language

    OpenAIRE

    Manrique Elizabeth

    2016-01-01

    Other-initiated repair is an essential interactional practice to secure mutual understanding in everyday interaction. This article presents evidence from a large conversational corpus of a sign language, showing that signers of Argentine Sign Language (Lengua de Señas Argentina or ‘LSA’), like users of spoken languages, use a systematic set of linguistic formats and practices to indicate troubles of signing, seeing and understanding. The general aim of this article is to provide a...

  8. Networks in Argentine agriculture: a multiple-case study approach

    OpenAIRE

    Sebastián Senesi; Fabio Ribas Chaddad; Hernán Palau

    2013-01-01

    Argentina is among the four largest producers of soybeans, sunflower, corn, and wheat, among other agricultural products. Institutional and policy changes during the 1990s fostered the development of Argentine agriculture and the introduction of innovative process and product technologies (no-till, agrochemicals, GMO, GPS) and new investments in modern, large-scale sunflower and soybean processing plants. In addition to technological changes, a "quiet revolution" occurred in the way agricultu...

  9. Liquid baits control Argentine ants sustainably in coastal vineyards

    OpenAIRE

    Cooper, Monica L; Daane, Kent M.; Nelson, Erik H; Varela, Lucia G; Battany, Mark; Tsutsui, Neil D.; Rust, M K

    2008-01-01

    Liquid ant baits are an alternative to broad-spectrum insecticide sprays conventionally used to control Argentine ants. We review the development of liquid ant baits, which capitalize on the ants’ sugar-feeding requirements and social structure to deliver small doses of toxicant throughout the colony. The ant bait program described here, developed for commercial vineyards, also has the potential to facilitate the use of biological controls for mealybug and scale pests. The implementation of a...

  10. Determination of the sputtering yield of cholesterol using Arn(+) and C60(+(+)) cluster ions.

    Science.gov (United States)

    Rakowska, P D; Seah, M P; Vorng, J-L; Havelund, R; Gilmore, I S

    2016-08-01

    The sputtering yield of cholesterol films on silicon wafers is measured using Arn(+) and C60(+(+)) ions in popular energy (E) and cluster size (n) ranges. It is shown that the C60(+(+)) ions form a surface layer that stabilizes the film so that a well-behaved profile is obtained. On the other hand, the Arn(+) gas clusters leave the material very clean but, at room temperature, the layer readily restructures into molecular bilayers, so that, although a useful measure may be made of the sputtering yield, the profiles become much more complex. This restructuring does not occur at room temperature normally but results from the actions of the beams in the sputtering process for profiling in secondary ion mass spectrometry. Better profiles may be made by reducing the sample temperature to -100 °C. This is likely to be necessary for many lower molecular weight materials (below 1000 Da) to avoid the movement of molecules. Measurements for cholesterol films on 37 nm of amiodarone on silicon are even better behaved and show the same sputtering yields at room temperature as those films directly on silicon at -100 °C. The yields for both C60(+(+)) and Arn(+) fit the Universal Equation to a standard deviation of 11%.

  11. Argentine Population Genetic Structure: Large Variance in Amerindian Contribution

    Science.gov (United States)

    Seldin, Michael F.; Tian, Chao; Shigeta, Russell; Scherbarth, Hugo R.; Silva, Gabriel; Belmont, John W.; Kittles, Rick; Gamron, Susana; Allevi, Alberto; Palatnik, Simon A.; Alvarellos, Alejandro; Paira, Sergio; Caprarulo, Cesar; Guillerón, Carolina; Catoggio, Luis J.; Prigione, Cristina; Berbotto, Guillermo A.; García, Mercedes A.; Perandones, Carlos E.; Pons-Estel, Bernardo A.; Alarcon-Riquelme, Marta E.

    2011-01-01

    Argentine population genetic structure was examined using a set of 78 ancestry informative markers (AIMs) to assess the contributions of European, Amerindian, and African ancestry in 94 individuals members of this population. Using the Bayesian clustering algorithm STRUCTURE, the mean European contribution was 78%, the Amerindian contribution was 19.4%, and the African contribution was 2.5%. Similar results were found using weighted least mean square method: European, 80.2%; Amerindian, 18.1%; and African, 1.7%. Consistent with previous studies the current results showed very few individuals (four of 94) with greater than 10% African admixture. Notably, when individual admixture was examined, the Amerindian and European admixture showed a very large variance and individual Amerindian contribution ranged from 1.5 to 84.5% in the 94 individual Argentine subjects. These results indicate that admixture must be considered when clinical epidemiology or case control genetic analyses are studied in this population. Moreover, the current study provides a set of informative SNPs that can be used to ascertain or control for this potentially hidden stratification. In addition, the large variance in admixture proportions in individual Argentine subjects shown by this study suggests that this population is appropriate for future admixture mapping studies. PMID:17177183

  12. Multiple oscillatory modes of the Argentine Basin. Part II. The spectral origin of the basin modes

    NARCIS (Netherlands)

    Weijer, W.; Vevier, F.; Gille, S.T.; Dijkstra, H.A.

    2007-01-01

    In this paper the spectrum of barotropic basin modes of the Argentine Basin is shown to be connected to the classical Rossby basin modes of a flat-bottom (constant depth), rectangular basin. First, the spectrum of basin modes is calculated for the Argentine Basin, by performing a normal-mode analysi

  13. XXXVIII Annual meeting of the Argentine Association of Nuclear Technology (AATN 2011)

    International Nuclear Information System (INIS)

    The 38th Annual meeting of the Argentine Association of Nuclear Technology was organized by the AATN (Asociacion Argentina de Tecnologia Nuclear) in Buenos Aires, Argentine, between the 14 and 18 November of 2011. In this event 146 papers in 16 Sessions, with 13 Plenary Conferences and 3 Roundtables were presented.

  14. Fission yeast arrestin-related trafficking adaptor, Arn1/Any1, is ubiquitinated by Pub1 E3 ligase and regulates endocytosis of Cat1 amino acid transporter

    Directory of Open Access Journals (Sweden)

    Akio Nakashima

    2014-05-01

    Full Text Available The Tsc1–Tsc2 complex homologous to human tuberous sclerosis complex proteins governs amino acid uptake by regulating the expression and intracellular distribution of amino acid transporters in Schizosaccharomyces pombe. Here, we performed a genetic screening for molecules that are involved in amino acid uptake and found Arn1 (also known as Any1. Arn1 is homologous to ART1, an arrestin-related trafficking adaptor (ART in Saccharomyces cerevisiae, and contains a conserved arrestin motif, a ubiquitination site, and two PY motifs. Overexpression of arn1+ confers canavanine resistance on cells, whereas its disruption causes hypersensitivity to canavanine. We also show that Arn1 regulates endocytosis of the Cat1 amino acid transporter. Furthermore, deletion of arn1+ suppresses a defect of amino acid uptake and the aberrant Cat1 localization in tsc2Δ. Arn1 interacts with and is ubiquitinated by the Pub1 ubiquitin ligase, which is necessary to regulate Cat1 endocytosis. Cat1 undergoes ubiquitinations on lysine residues within the N-terminus, which are mediated, in part, by Arn1 to determine Cat1 localization. Correctively, Arn1 is an ART in S. pombe and contributes to amino acid uptake through regulating Cat1 endocytosis in which Tsc2 is involved.

  15. Izbor in vzpostavitev požarne pregrade v podjetju Zelinka d.o.o.

    OpenAIRE

    Barunčić, Mario

    2016-01-01

    Vse življenje se vsakodnevno in neprestano odločamo. V literaturi lahko zasledimo, da je odločanje mentalni proces, zavedni ali nezavedni, znotraj katerega izbiramo med več variantami. V proučevani organizaciji so se odločili za zamenjavo požarne pregrade. V okviru diplomske naloge smo zato izgradili odločitveni model, izbrali požarno pregrado ter jo vgradili v njihovo okolje. Za izgradnjo modela smo izbrali metodo ekspertnih sistemov na področju večkriterijskega odločanja z uporabo pro...

  16. An improved inlet for precisely measuring the atmospheric Ar/N2 ratio

    Directory of Open Access Journals (Sweden)

    T. W. Blaine

    2006-01-01

    Full Text Available The atmospheric Ar/N2 ratio is expected to be useful as a tracer of air-sea heat exchange, but this application has been hindered in part due to sampling artifacts. Here we show that the variability in δ(Ar/N2 due to thermal fractionation at the inlet can be on the order of 40-80 per meg, and we introduce the use of an aspirated solar shield that successfully minimizes such fractionation. The data collected using this new inlet have a mean diurnal cycle of 1.0 per meg or less, suggesting that any residual thermal fractionation effect is reduced to this level.

  17. Argentine Radiation Protection Society Experience in RP education and training

    International Nuclear Information System (INIS)

    Since its creation in 1967, the Argentine Radiation Protection Society (SAR) promotes all the radiation protection and nuclear safety aspects not only within the scientific, technical and academic areas, but also to general public. To fulfill this objective, SAR organised training and refresher courses, seminars and workshops on RP subjects. During 2002, SAR organised 7 basic and specialized courses regarding the uses of radioactive materials in industrial applications and the course on medical response in radiological accidents, that was attended by Argentine and other Latin American participants. The programmes of the courses are developed in compliance with the legal requirements and also considering specifics needs. In this paper, the characteristics of the courses are enunciated and basic statistics regarding courses and participants are presented. For the 2003 and 2004, SAR foresees the organisation of 18 courses per year and has the capacity to deliver other courses by request. all the courses are delivered in Spanish language. Based on this educational experience SAR consider a priority the inclusion, of a RP module in all the scientific graduate programmes to generate awareness on the importance of RP. Taking into account the migration of professionals to Europe and North America and the Globalization, SAR advocates the harmonization of RP syllabus to attain an international recognition. (Author)

  18. LeARN: a platform for detecting, clustering and annotating non-coding RNAs

    Directory of Open Access Journals (Sweden)

    Schiex Thomas

    2008-01-01

    Full Text Available Abstract Background In the last decade, sequencing projects have led to the development of a number of annotation systems dedicated to the structural and functional annotation of protein-coding genes. These annotation systems manage the annotation of the non-protein coding genes (ncRNAs in a very crude way, allowing neither the edition of the secondary structures nor the clustering of ncRNA genes into families which are crucial for appropriate annotation of these molecules. Results LeARN is a flexible software package which handles the complete process of ncRNA annotation by integrating the layers of automatic detection and human curation. Conclusion This software provides the infrastructure to deal properly with ncRNAs in the framework of any annotation project. It fills the gap between existing prediction software, that detect independent ncRNA occurrences, and public ncRNA repositories, that do not offer the flexibility and interactivity required for annotation projects. The software is freely available from the download section of the website http://bioinfo.genopole-toulouse.prd.fr/LeARN

  19. Explicit knowledge resulting from interviews with the experts in the Argentinean Nuclear Regulatory Authority (ARN)

    International Nuclear Information System (INIS)

    Full text: A considerable number of ARN experts have been retiring for a number of years now, and it is estimated that by 2010 a significant number of them will no longer be working for the agency. We estimate that by then the 20 most important experts would have already retired. At present, ARN has a workforce consisting of 300 employees; with more than 100 of then having been recruited between 2002 at 2006. Unfortunately, from 1994 to 2001 very few people joined the agency. Those who will take over the positions of retirees, have either not been trained yet or are still in the training process. Such a phenomenon raises challenges and a number of issues that should be considered for the mid and long term. Knowledge Management was initiated as a way of facing the above-stated phenomenon. In 2000, ARN had around 30 officers with a high level of expertise; these officers contributed and continue to contribute significantly to the regulatory activity both at a domestic and international level. By 2010, more than 20 of them will be in the process of retiring or will have already retired. With a view to solving this problem, the methodology of 'history of the learning process' implemented in a number of in-depth interviews with the experts has aimed at retrieving their knowledge and has also allowed us to elucidate a number of issues pertaining nuclear and regulatory knowledge and to detect that a number of institutional training programs, would be critical for efficiently training the new candidates who would ultimately take the places of retiree experts. Even though there are a considerable number of methodologies available to obtain implicit and tacit knowledge from people, the above-stated methodology is an example of the contribution to the nuclear sciences by humanistic tools. The methodology of 'history of the learning process' implemented with the technical assistance of Public Administration National Institute in 2006. At an initial stage, those officers that

  20. Participation of ARN (Autoridad Regulatoria Nuclear) Argentina in the quality assessment program, EML-USDOE since 2002-2004

    International Nuclear Information System (INIS)

    In this report, the results corresponding to five consecutive exercises (period 2002-2004) obtained by the Autoridad Regulatoria Nuclear (ARN) in alpha, beta and gamma measurements, on four different matrixes, within the framework of Environmental Measurements Laboratory (EML) Quality Assessment Program (QAP) of the United States, are presented. (author)

  1. Kuhu lähed, Kultuurikatel? / Thuur Caris, Renger Koning, Arne Lösekann ; interv. Katrin Koov, Regina Viljasaar

    Index Scriptorium Estoniae

    Caris, Thuur

    2008-01-01

    Endise Tallinna soojuselektrijaama kompleksis asuva Kultuurikatla ruumide võimalusi uuriv workshop, korraldajaks MTÜ Kultuurikatel koos Kavakava arhitektide Siiri Vallneri ja Katrin Kooviga. Hollandi meediakunstnik Thuur Caris ja helilooja ning helidisainer Renger Koning tutvustavad Groningeni Pudingivabrikut. Saksa arhitekt ja kunstnik Arne Lösekann tutvustab Kubasta kunstikeskust Hamburgis

  2. Atmosfäärilisus Arne Maasiku linnafotodel : linnamiljöö subjektiivne käsitlus / Kadri Semm

    Index Scriptorium Estoniae

    Semm, Kadri, 1980-

    2011-01-01

    Tutvustatakse Arne Maasiku atmosfäärsetele linnafotodele tuginedes miljöö alternatiivset tähendust, kus fotograafi pildikeele kaudu avaneb sotsiaalse iseloomuga linnakeskkonna subjektiivne olemus. Ka erinevate autorite ökoloogilis-sümbolilise miljöö ja fenomenoloogilise atmosfääri teooriatest ja tähtsusest inimese tunderuumide eneseteadlikus väljendamises

  3. microARNs conservados en Yuca (Manihot esculenta identificados con secuenciación de nueva generación

    Directory of Open Access Journals (Sweden)

    López Camilo Ernesto

    2010-08-01

    Full Text Available Los microARNs son moléculas pequeñas de ARN utilizadas por los eucariotas como un mecanismo de control de la expresión génica. En plantas los microRNAs están implicados en la regulación de distintos aspectos del crecimiento y desarrollo, así como en la tolerancia a estrés biótico y abiótico. Muchos microRNAs de plantas se encuentran conservados desde musgos a dicotiledóneas, sin embargo aun existen muchas plantas para las que no se conoce el reportorio de microRNAs, asimismo se desconoce el papel que algunos microRNAs pueden tener en procesos como defensa contra patógenos. En este trabajo se construyó una librería de ARNs pequeños a partir de muestras de tejidos de Manihot esculenta (yuca inoculados con la bacteria fitopatógena Xanthomonas axonopodis pv. manihotis (Xam, y se secuenciaron utilizando técnicas de secuenciación de nueva generación (Illumina o Solexa. Se identificaron en la librería 47 familias de microARNs de yuca conservados en otras plantas. Se cuantificó la expresión de éstos microARNs, encontrándose similitudes con perfiles de expresión en otras plantas obtenidos por las mismas técnicas. Se encontró la secuencia de los precursores para algunas de las familias en secuencias de ESTs y GSSs de yuca. Asimismo se predijeron los blancos de estos microRNAs en el set de ESTs encontrándose que muchos microARNs están dirigidos contra factores de transcripción, y que existe un gran porcentaje de posibles blancos con función desconocida. Este trabajo es el primer paso hacia entender cómo la vía de microARNs puede estar implicada en la interacción planta-patógeno en el sistema M.esculenta-Xam.

  4. Detection of Argentine onions treated with 60 Co irradiation

    International Nuclear Information System (INIS)

    Brazil has been the most important MERCOSUL's purchaser of fresh onions from Argentina. The increased claim for this fresh product has forced a consensus between the members nations, as regards to phytosanitary restrictions. The radio inhibition is described on National Food Codes in Brazil and Argentina. Methods of food irradiation detection must be performed, since they increase the consumer confidence. Quick and simple screening tests indicate whether a food product has been irradiated or not. This present study verified the DNA fragments of argentine fresh onions, produced during radiation process and 6 months of storage period. The DNA fragments are analyzed for detection of irradiated foods. The irradiated onions presented extensive DNA migrations, as comets, when submitted to agarose gel electrophoresis. They also showed more shelf life compared to the unirradiated onions. The unirradiated samples exhibited only limited DNA migration. This initial screen method showed to be effective for detection of irradiated onions. (author)

  5. Characterization of Argentine Loess and Paleosols by Moessbauer Spectroscopy

    International Nuclear Information System (INIS)

    We have used Moessbauer spectroscopy to investigate iron-bearing mineral samples of loess and paleosols from a geologic section at La Plata, Argentina, 34 deg. 54' 14'' S and 58 deg. 2' W. Hematite is by far the dominant iron-bearing magnetic component in initial loess and paleosol samples. The samples were also subjected to magnetic separation. The magnetically enriched loess fractions show a remarkable increase in the content of magnetite. The enhancement of non-magnetic Fe3+ and a decrease of Fe2+ mineral phases in the paleosol layer seem to be a consequence of the process of pedogenesis which also caused a dissolution of magnetic iron oxides by weathering. The increase of magnetite in the silt fraction suggests that the wind could have been the main carrier of magnetic minerals, causing the major differences in the magnetic parameters between loess and paleosols in the Argentine loess plateau

  6. Native supercolonies of unrelated individuals in the invasive Argentine ant

    DEFF Research Database (Denmark)

    Pedersen, Jes Søe; Krieger, Michael J. B.; Vogel, Valérie;

    2006-01-01

    Kinship among group members has long been recognized as a main factor promoting the evolution of sociality and reproductive altruism, yet some ants have an extraordinary social organization, called unicoloniality, whereby individuals mix freely among physically separated nests. This type of social...... organization is not only a key attribute responsible for the ecological dominance of these ants, but also an evolutionary paradox because relatedness between nestmates is effectively zero. Recently, it has been proposed that, in the Argentine ant, unicoloniality is a derived trait that evolved after its...... introduction into new habitats. Here we test this basic assumption by conducting a detailed genetic analysis of four native and six introduced populations with five to 15 microsatellite loci and one mitochondrial gene. In contrast to the assumption that native populations consist of family-based colonies with...

  7. Colorado Basin Structure and Rifting, Argentine passive margin

    Science.gov (United States)

    Autin, Julia; Scheck-Wenderoth, Magdalena; Loegering, Markus; Anka, Zahie; Vallejo, Eduardo; Rodriguez, Jorge; Marchal, Denis; Reichert, Christian; di Primio, Rolando

    2010-05-01

    The Argentine margin presents a strong segmentation with considerable strike-slip movements along the fracture zones. We focus on the volcanic segment (between the Salado and Colorado transfer zones), which is characterized by seaward dipping reflectors (SDR) all along the ocean-continent transition [e.g. Franke et al., 2006; Gladczenko et al., 1997; Hinz et al., 1999]. The segment is structured by E-W trending basins, which differs from the South African margin basins and cannot be explained by classical models of rifting. Thus the study of the relationship between the basins and the Argentine margin itself will allow the understanding of their contemporary development. Moreover the comparison of the conjugate margins suggests a particular evolution of rifting and break-up. We firstly focus on the Colorado Basin, which is thought to be the conjugate of the well studied Orange Basin [Hirsch et al., 2009] at the South African margin [e.g. Franke et al., 2006]. This work presents results of a combined approach using seismic interpretation and structural, isostatic and thermal modelling highlighting the structure of the crust. The seismic interpretation shows two rift-related discordances: one intra syn-rift and the break-up unconformity. The overlying sediments of the sag phase are less deformed (no sedimentary wedges) and accumulated before the generation of oceanic crust. The axis of the Colorado Basin trends E-W in the western part, where the deepest pre-rift series are preserved. In contrast, the basin axis turns to a NW-SE direction in its eastern part, where mainly post-rift sediments accumulated. The most distal part reaches the margin slope and opens into the oceanic basin. The general basin direction is almost orthogonal to the present-day margin trend. The most frequent hypothesis explaining this geometry is that the Colorado Basin is an aborted rift resulting from a previous RRR triple junction [e.g. Franke et al., 2002]. The structural interpretation

  8. Annual Report ABACC 2003 - Brazilian-Argentine Agency for the Accounting and Control of Nuclear Materials

    International Nuclear Information System (INIS)

    This Report describes the actions of the Brazil-Argentine of Accounting and Control of Nuclear Materials (ABACC), during the year of 2003. The developed work allowed to concluded that there is no event indicating that any nuclear material non-accounted for were deviated for non permitted activities by the Agreement for Peaceful Use of Nuclear Energy between Argentine and Brazil and by the Four Parties Agreement among these countries, the ABACC and the International Atomic Energy Agency (IAEA)

  9. Networks in Argentine agriculture: a multiple-case study approach

    Directory of Open Access Journals (Sweden)

    Sebastián Senesi

    2013-06-01

    Full Text Available Argentina is among the four largest producers of soybeans, sunflower, corn, and wheat, among other agricultural products. Institutional and policy changes during the 1990s fostered the development of Argentine agriculture and the introduction of innovative process and product technologies (no-till, agrochemicals, GMO, GPS and new investments in modern, large-scale sunflower and soybean processing plants. In addition to technological changes, a "quiet revolution" occurred in the way agricultural production was carried out and organized: from self-production or ownership agriculture to a contract-based agriculture. The objective of this paper is to explore and describe the emergence of networks in the Argentine crop production sector. The paper presents and describes four cases that currently represent about 50% of total grain and oilseed production in Argentina: "informal hybrid form", "agricultural trust fund", "investor-oriented corporate structure", and "network of networks". In all cases, hybrid forms involve a group of actors linked by common objectives, mainly to gain scale, share resources, and improve the profitability of the business. Informal contracts seem to be the most common way of organizing the agriculture process, but using short-term contracts and sequential interfirm collaboration. Networks of networks involve long-term relationships and social development, and reciprocal interfirm collaboration. Agricultural trust fund and investor-oriented corporate structures have combined interfirm collaboration and medium-term relationships. These organizational forms are highly flexible and show a great capacity to adapt to challenges; they are competitive because they enjoy aligned incentives, flexibility, and adaptability.

  10. Chemical and anti-ulcer evaluation of Jodina rhombifolia (Hook. & Arn. Reissek extracts

    Directory of Open Access Journals (Sweden)

    Jarbas A. Montanha

    2009-03-01

    Full Text Available Jodina rhombifolia (Hook. & Arn. Reissek (Santalaceae is a medicinal plant popularly used as an anti-ulcer medicine. The plant native from Southern Brazil was chemically investigated and tested for its in vivo gastric anti-ulcer property by chloride acid/ethanol model. The chromatographic analysis of the hydroethanol extract of its leaves revealed the presence of C-glycosylflavonoids. From the n-butanol fraction of the hydroethanol extract of its aerial parts, vicenin-2 was isolated as the main component and identified by spectroscopic methods; and, a direct comparison with authentic samples was made. This fraction afforded three other C-glycosylflavonoids: vitexin, orientin and swertisin; all of them identified by direct comparison with authentic samples. We found that the oral administration of aqueous and hydroethanolic extracts led to a significant decrease in the ulcer index.

  11. CHEMICAL INVESTIGATION OF TUBERS OF STEPHANIA WIGHTII (ARN DUNN BY GC-MS

    Directory of Open Access Journals (Sweden)

    Shunmugapriya K

    2012-01-01

    Full Text Available Stephania wightii (Arn Dunn known to the Kanikkars as “Koloukone” is one of the medicinally important plants belonging to the family Menispermaceae. Kanikkar tribe’s people of Western Ghats of Tamil Nadu, India, the tubers are used as a medicine in the treatment of cancer. Present study was carried out to analyse the active constituents present in the tuber of said plant. Thirteen compounds were identified in the ethanol extract of S.wightii by Gas Chromatography – Mass Spectrometry (GC-MS analysis. The major components present in the tuber of S.wightii were (1HIndolo(2,1-aisoquinoline,5,6,11,12-tetrahydro-2,3,8,9-tetramethoxy (59.98%,6H Dibenzo (a,g quinolizine, 5, 8, 13, 13a-tetrahydro-2, 3, 9,10-tetramethoxy-, (ñ- (34.86% and 1, 3-propanediol, 2-(hydroxymethyl -2-nitro-(2.89%.

  12. Hepatoprotective effects of Pittosporum neelgherrense Wight&Arn., a popular Indian ethnomedicine.

    Science.gov (United States)

    Shyamal, S; Latha, P G; Shine, V J; Suja, S R; Rajasekharan, S; Ganga Devi, T

    2006-08-11

    The stem bark of Pittosporum neelgherrense Wight&Arn. is used by the Kani and Malapandaram tribes of Kerala as an effective antidote to snake bite and for the treatment of various hepatic disorders. In the present study, the effect of the methanolic extract of the stem bark of Pittosporum neelgherrense was studied against carbon tetrachloride (CCl(4))-, d-galactosamine (D-GalN)- and acetaminophen (APAP)-induced acute hepatotoxicity in Wistar rats. Significant hepatoprotective effects were obtained against liver damage induced by all the three liver toxins, as evident from decreased levels of serum enzymes, glutamate oxaloacetate transaminase (SGOT), glutamate pyruvate transaminase (SGPT) and an almost normal architecture of the liver in the treated groups, compared to the toxin controls. Thus the present study provides a scientific rationale for the traditional use of this plant in the management of liver diseases. PMID:16621375

  13. Cosmic radiation dosimetry in international flights argentine airlines

    International Nuclear Information System (INIS)

    Full text: Introduction: In commercial aviation the most important determinants of radiation exposure in humans are the altitude, latitude, flight duration and the solar cycle's period. This study was conducted to address this type of exposure trough radiation dosimetry. Method: The study was performed in the business-class cabin of an Airbus 340-200 aircraft, provided by Argentine Airlines, during 2 flights routes: New York-Miami-Buenos Aires (trans equatorial) and Buenos Aires-Auckland (circumpolar). Measurements addressed the electromagnetic spectrum or low Linear Energy Transfer (LET) and corpuscular radiation (High LET). The instruments used were an Ion Chamber (IC), to measure the ionizing component of radiation (i.e., gamma radiation), the SWENDI, to measure only the neutron component, and the Tissue Equivalent Proportional Counter (TEPC) for measuring all radiation types. Results: The routes' dose rates are presented in the table. TEPC rates agreed with the LET findings. The total dose rates of high latitude flights were higher than those of low latitude flights. The SWENDI (High LET) results for the flights over the equator, at low latitude, represented only 1/3 of the total radiation. The New York-Miami and Buenos Aires-Auckland flights, at high latitude, represented just under 1/2 of the Total radiation (-45%). Conclusion: Based on the results of this study, the annual dose rates of radiation exposure of air crew personnel serving on international flights offered by Argentine Airlines is between 3 and 7 mSv. This rate is higher than the maximum recommended for the general population by the International Commission on Radiological Protection (ICRP), which is 1 milli Sv./y. Therefore, these personnel must be officially considered 'Occupationally Exposed to Radiation' in way to provide the appropriate measures that must be implemented for their protection in accordance to ICRP guidelines. Dose(uSv): Route N Y-Miami, IC 6.07, SWENDI 5.07, TEPC 11.04; Route

  14. Soil properties and root biomass responses to prescribed burning in young corsican pine (Pinus nigra Arn.) stands

    OpenAIRE

    Tüfekçioğlu, Aydın; Küçük, Mehmet; Sağlam, Bülent; Bilgili, Ertuğrul; Altun, Lokman

    2009-01-01

    Fire is an important tool in the management of forest ecosystems. Although both prescribed and wildland fires are common in Turkey, few studies have addressed the influence of such disturbances on soil properties and root biomass dynamics. In this study, soil properties and root biomass responses to prescribed fire were investigated in 25-year-old corsican pine (Pinus nigra Arn.) stands in Kastamonu, Turkey. The standswere established byplanting and were subjected to prescribed burning in Jul...

  15. Examination of seed characters of Vachellia farnesiana (L.) Wight & Arn. as potentially applicable species in Serbia under climate change conditions

    OpenAIRE

    Grbić Mihailo; Skočajić Dragana; Đukić Matilda; Đunisijević-Bojović Danijela; Marković Marija

    2014-01-01

    Seeds of sweet acacia (Vachellia farnesiana (L.) Wight & Arn.) were mechanically scarified and treated with concentrated sulfuric acid in order to determine the permeability degree of the seed coat. The obtained results suggest a stronger form of seed coat dormancy that prevents potential invasiveness after introduction. The species is recommended for limited cultivation in outdoor conditions and unlimited use in interior spaces as full size or bonsai trees...

  16. Insecticide transfer efficiency and lethal load in Argentine ants

    Science.gov (United States)

    Hooper-Bui, L. M.; Kwok, E. S. C.; Buchholz, B. A.; Rust, M. K.; Eastmond, D. A.; Vogel, J. S.

    2015-10-01

    Trophallaxis between individual worker ants and the toxicant load in dead and live Argentine ants (Linepithema humile) in colonies exposed to fipronil and hydramethylnon experimental baits were examined using accelerator mass spectrometry (AMS). About 50% of the content of the crop containing trace levels of 14C-sucrose, 14C-hydramethylnon, and 14C-fipronil was shared between single donor and recipient ants. Dead workers and queens contained significantly more hydramethylnon (122.7 and 22.4 amol/μg ant, respectively) than did live workers and queens (96.3 and 10.4 amol/μg ant, respectively). Dead workers had significantly more fipronil (420.3 amol/μg ant) than did live workers (208.5 amol/μg ant), but dead and live queens had equal fipronil levels (59.5 and 54.3 amol/μg ant, respectively). The distribution of fipronil differed within the bodies of dead and live queens; the highest amounts of fipronil were recovered in the thorax of dead queens whereas live queens had the highest levels in the head. Resurgence of polygynous ant colonies treated with hydramethylnon baits may be explained by queen survival resulting from sublethal doses due to a slowing of trophallaxis throughout the colony. Bait strategies and dose levels for controlling insect pests need to be based on the specific toxicant properties and trophic strategies for targeting the entire colony.

  17. Nuclear trade: an approach on the Argentine situation

    International Nuclear Information System (INIS)

    The Argentine nuclear trade regime. Nuclear Materials. Definitions. Stages. From early times of nuclear development an actual and strict monopoly governed the transfers of nuclear materials. That meant: the Federal State took the control as user, producer, purchaser or seller. This policy was inspired and clearly echoed a similar one developed by countries with important development in the nuclear field. Types of contracts on nuclear commerce. Relation with costs implied with the nuclear industry. Uranium mining. System of supplies. Development of factories of nuclear supplies. Incentives. Nuclear Power. Radioisotopes. Human Resources. Ways of intervention of the State on nuclear Commerce. The right of veto. The ownership of shares in private or public corporations. Export- import controls. Security and Safety standards. National Act of Nuclear Activity. Veto of the Executive Power to the monopoly of the exclusive national supply of uranium. Comparative policies on other fields or products in Argentina. A proposal of lege ferenda. State's right of transformation applicable to purchases and sales of nuclear materials. Exchange and loans. Cosignature of contracts, etc. (author)

  18. Argentine regulatory experience concerning radiation protection in industrial gammagraphy

    International Nuclear Information System (INIS)

    Industrial gammagraphy has always been responsible for the highest rates of radiological incidents in almost every part of the world. This is mainly due to the high activities of the radioactive sources used, which are constantly transported in the equipment that contains them between the storage and the areas of work, and is also due to workload pressures which may induce to negligence in following the operational procedures, if a strong Safety Culture does not exist. The purpose of this paper is to present the main aspects of the Argentine Regulations relating to radiation protection to control this practice and to contribute in this way to reduce the associated risks. In addition, some incidents occurred in Argentina during the latest years, the causes that led to those events and their relation to the in observance of the regulations in force, their consequences and the measures taken to repair them are described. Finally, the importance of the role that education and training has in the strengthening of Safety Culture, key element of all undertaking, is highlighted. (author)

  19. Active tectonics in the Argentine Precordillera and Western Sierras Pampeanas

    Directory of Open Access Journals (Sweden)

    L.L. Siame

    2006-12-01

    Full Text Available The Andean foreland of western Argentina (28°S-33°S corresponds to retroarc deformations associated with the ongoing flat subduction of the Nazca plate beneath the South American lithosphere. This region is characterized by high levels of seismic activity and crustal active faulting. To improve earthquake source identification and characterization in the San Juan region, data from seismology, structural geology and quantitative geomorphology were integrated and combined to provide a seismotectonic model. In this seismotectonic model, the Andean back-arc of western Argentina can be regarded as an obliquely converging foreland where Plio-Quaternary deformations are partitioned between strike-slip and thrust motions that are localized on the E-verging, thin-skinned Argentine Precordillera, and the W-verging thick-skinned Sierras Pampeanas, respectively. In this seismotectonic model, the Sierra Pie de Palo appears to be a key structure playing a major role in the partitioning of the Plio-Quaternary deformations.

  20. [Distribution of Lutzomyia longipalpis in the Argentine Mesopotamia, 2010].

    Science.gov (United States)

    Salomon, Oscar D; Fernandez, Maria S; Santini, María S; Saavedra, Silvina; Montiel, Natalia; Ramos, Marina A; Rosa, Juan R; Szelag, Enrique A; Martinez, Mariela F

    2011-01-01

    The first case of visceral leishmaniasis (VL) in Argentina was reported in 2006 in Posadas, Misiones. During the summer 2008-2009 Lutzomyia longipalpis, the VL vector, and canine VL cases were already spread along the province of Corrientes. In order to know the distribution of VL risk, systematic captures of the vector were performed between February and March 2010, in 18 areas of the provinces of Entre Ríos and Corrientes, and the city of Puerto Iguazú, Misiones, with a total of 313 traps/night. We confirmed the presence of Lu. longipalpis, for the first time in Chajarí (Entre Ríos), Alvear, La Cruz, Curuzú Cuatiá and Bella Vista (Corrientes), and Puerto Iguazú (Misiones). In Santo Tome and Monte Caseros (Corrientes), where the vector had been previously reported, traps with more samples were obtained with 830 and 126 Lu. Longipalpis trap/site/night respectively. These results show that the vector of urban VL continues spreading in the Argentine territory. Simultaneously, the spread of the parasite and the resulting human VL cases are associated with the dispersion of reservoirs, infected dogs, with or without clinical symptoms or signs, due to human transit. PMID:21296716

  1. Fragile-X mental retardation: molecular diagnosis in Argentine patients.

    Science.gov (United States)

    Florencia, Giliberto; Irene, Szijan; Veronica, Ferreiro

    2006-11-30

    Fragile-X-syndrome (FXS) is the most common type of inherited cognitive impairment. The underlying molecular alteration consists of a CGG-repeat amplification within the FMR-1 gene. The phenotype is only apparent once a threshold in the number of repeats has been exceeded (full mutation). The aim of this study was to characterize the FMR-1 CGG-repeat status in Argentine patients exhibiting mental retardation. A total of 330 blood samples from patients were analyzed by PCR and Southern blot analysis. Initially, DNA from 78 affected individuals were studied by PCR. Since this method is unable to detect high molecular weight alleles, however, we undertook a second approach using the Southern blotting technique to analyze the CGG repeat number and methylation status. Southern blot analysis showed an altered pattern in 14 out of 240 (6%) unrelated patients, with half of them presenting a mosaic pattern. Eight out of 17 families (47%) showed a (suggest deleting highlight). The characteristic FXS pattern was identified in 8/17 families (47%), and in 4 of these families 25% of the individuals presented with a mosaic model. The expansion from pre-mutation to full mutation was shown to occur both at the pre and post zygotic levels. The detection of FXS mutations has allowed us to offer more informed genetic counseling, prenatal diagnosis and reliable patient follow-up.

  2. In Vivo Characterization of ARN14140, a Memantine/Galantamine-Based Multi-Target Compound for Alzheimer’s Disease

    Science.gov (United States)

    Reggiani, Angelo M.; Simoni, Elena; Caporaso, Roberta; Meunier, Johann; Keller, Emeline; Maurice, Tangui; Minarini, Anna; Rosini, Michela; Cavalli, Andrea

    2016-01-01

    Alzheimer’s disease (AD) is a chronic pathological condition that leads to neurodegeneration, loss of intellectual abilities, including cognition and memory, and ultimately to death. It is widely recognized that AD is a multifactorial disease, where different pathological cascades (mainly amyloid and tau) contribute to neural death and to the clinical outcome related to the disease. The currently available drugs for AD were developed according to the one-target, one-drug paradigm. In recent times, multi-target strategies have begun to play an increasingly central role in the discovery of more efficacious candidates for complex neurological conditions, including AD. In this study, we report on the in vivo pharmacological characterization of ARN14140, a new chemical entity, which was obtained through a multi-target structure-activity relationship campaign, and which showed a balanced inhibiting profile against the acetylcholinesterase enzyme and the NMDA receptor. Based on the initial promising biochemical data, ARN14140 is here studied in mice treated with the amyloidogenic fragment 25–35 of the amyloid-β peptide, a consolidated non-transgenic AD model. Sub-chronically treating animals with ARN14140 leads to a prevention of the cognitive impairment and of biomarker levels connected to neurodegeneration, demonstrating its neuroprotective potential as new AD agent. PMID:27609215

  3. Análisis de dos escaleras suspendidas de Arne Jacobsen

    Directory of Open Access Journals (Sweden)

    Samper, A.

    2013-06-01

    Full Text Available In this paper we analyze two suspended staircases, with the same structural type, designed by Arne Jacobsen: the staircase of the Rodovre City Hall and the staircase of the Denmark National Bank. Both are essential part of the main access hall into buildings. They were designed with seven years of difference, they have technical progress, but they keep same management rules within the project. We show what gives them meaning and shape: expression, function, technique, position, relationship with other elements and construction system. From few original documents obtained, we have prepared and presented a new documentation, with that we can highlight the different elements. With this work, anyone interested in these staircases can get all the data about them; these data for various reasons were not publicly available, until the present paper. Thus, we make available another public source of ideas about the technique and philosophy of Jacobsen.En este trabajo analizamos dos escaleras suspendidas de la misma tipología estructural diseñadas por Arne Jacobsen: la escalera del Ayuntamiento de Rodovre y la escalera del Banco Nacional de Dinamarca. Ambas son parte primordial del vestíbulo principal de acceso en los edificios. Diseñadas con siete años de diferencia, presentan progreso técnico y estructural, manteniendo las mismas reglas de ordenación dentro del proyecto. Mostramos aquello que les da sentido y forma: expresión, función, técnica, posición, relación con otros elementos y sistema constructivo. A partir de la escasa documentación original obtenida, elaboramos y presentamos nueva documentación con la que se pueden destacar los diferentes elementos. Con este trabajo, cualquier interesado en estas escaleras puede obtener todos los datos sobre ellas; datos que por diferentes motivos no se encontraban a disposición pública, hasta el presente artículo. Así, ponemos al alcance público otra fuente de ideas sobre la técnica y

  4. Participation of the ARN in the program of the EML-US DOE for the evaluation of quality of the radiochemistry measurements; Participacion de la ARN en el programa del EML-USDOE para la evaluacion de calidad de las mediciones radioquimicas

    Energy Technology Data Exchange (ETDEWEB)

    Equillor, Hugo; Grinman, Ana; Serdeiro, Nelida; Fernandez, Jorge; Gavini, Ricardo; Bonino, Nestor; Lewis, Cecilia; Palacios, Miguel; Diodati, Jorge; Medici, Marcela [Autoridad Regulatoria Nuclear, Buenos Aires (Argentina)

    2001-07-01

    The Autoridad Regulatoria Nuclear (ARN), Republica Argentina participates since 1995 in the Quality Assessment Program carried out by the Environmental Measurements Laboratory, United States Department Of Energy (US DOE). The aim of this participation is to assess the quality of the measurements that ARN realises routinely. The program involves alpha, beta, gamma emitters radionuclides determinations in four kinds of matrixes: water, filter, vegetation and soil. In the present work the results of the ARN participations respect to 1998-2000 period, are detailed and analyzed statistically. The results are compared with the total of the laboratories. (author)

  5. Perspectives on Argentine Migration to Spain: Oral, Journal and Film Sources

    Directory of Open Access Journals (Sweden)

    Susana Schmidt

    2010-03-01

    Full Text Available This contribution takes up our doctoral research –Argentine migrationto Spain- to share some theoretical-methodological considerations.We refer to the conceptualization of "transnational social spaces," an approach that allows us to consider migration in its double dimension origin/destination and is particularly useful to thing the relationship between migration and creation of social and cultural ties in the Hispano-Argentine or Argentine-Spanish space. Similarly, the transnational spaces approach allows to put in dialog diverse social groups involved in the phenomenon: the migrants themselves, whose life stories are analysed by using oral sources; the society of origin and the host society, analysing collective image through journal sources; the filmmakers, whose migration stories we discussmigration through various fiction films; and, of course, historians and other social scientists who study these migrations.

  6. Biotic and abiotic controls of argentine ant invasion success at local and landscape scales

    Science.gov (United States)

    Menke, S.B.; Fisher, R.N.; Jetz, W.; Holway, D.A.

    2007-01-01

    Although the ecological success of introduced species hinges on biotic interactions and physical conditions, few experimental studies - especially on animals - have simultaneously investigated the relative importance of both types of factors. The lack of such research may stem from the common assumption that native and introduced species exhibit similar environmental tolerances. Here we combine experimental and spatial modeling approaches (1) to determine the relative importance of biotic and abiotic controls of Argentine ant (Linepithema humile) invasion success, (2) to examine how the importance of these factors changes with spatial scale in southern California (USA), and (3) to assess how Argentine ants differ from native ants in their environmental tolerances. A factorial field experiment that combined native ant removal with irrigation revealed that Argentine ants failed to invade any dry plots (even those lacking native ants) but readily invaded all moist plots. Native ants slowed the spread of Argentine ants into irrigated plots but did not prevent invasion. In areas without Argentine ants, native ant species showed variable responses to irrigation. At the landscape scale, Argentine ant occurrence was positively correlated with minimum winter temperature (but not precipitation), whereas native ant diversity increased with precipitation and was negatively correlated with minimum winter temperature. These results are of interest for several reasons. First, they demonstrate that fine-scale differences in the physical environment can eclipse biotic resistance from native competitors in determining community susceptibility to invasion. Second, our results illustrate surprising complexities with respect to how the abiotic factors limiting invasion can change with spatial scale, and third, how native and invasive species can differ in their responses to the physical environment. Idiosyncratic and scale-dependent processes complicate attempts to forecast where

  7. PHARMACOGNOSTIC AND ANATOMICAL STUDIES OF ANTIGONON LEPTOPUS HOOK. AND ARN.: A PROMISING MEDICINAL CLIMBER

    Directory of Open Access Journals (Sweden)

    Rahaman Chowdhury Habibur

    2013-04-01

    Full Text Available The evaluation of quality and purity of crude drugs by means of various parameters is the most important aspect of pharmacognosy. The present study deals with pharmacognostic characterization of Antigonon leptopus Hook. and Arn. of the family Polygonaceae. The tubers of it are used by the tribal people as tonic and nutritious food. The parameters like micromorphological, anatomical, phytochemical and physical constants have been employed for the pharmacognostical evaluation of different parts of this plant. The stomata are of anisocytic type and amphistomatic. Stomatal indices are 11.08 and 12.13 in upper and lower surfaces respectively. Palisade ratio is 5.5. Trichomes are of both nonglandular and glandular types. Methanolic extracts of leaf indicate presence of alkaloids, flavonoids, tannins, saponins, anthraquinone, etc. Ash value and moisture content of the leaves were found to be 20.68% and 76% respectively. This study will provide some diagnostic features by which the crude drug of this plant can easily be identified.

  8. Edaphic characteristics of Austrian pine (Pinus nigra Arn. forests in the Višegrad area

    Directory of Open Access Journals (Sweden)

    Blagojević Velibor D.

    2016-01-01

    Full Text Available This paper presents the results of soil research in Austrian pine (Pinus nigra Arn. forest communities in the Višegrad area, carried out to determine the basic soil characteristics and eco-production potential of forest habitats as an important basis and framework for the successful management of these forests on the principles of sustainable development. Austrian pine forests in this region are an important and ecologically valuable community. The complexity of the geological structure and relief dynamics are dominant environmental factors that condition the expressed variability of soils in the study area. Forest communities of Austrian pine are formed on the peridotites and serpentinites, eutric ranker (haplic leptosol, eutric cambisol (haplic cambisols and pseudogley (haplic planosol, dense granular and marl limestones calcomelanosol (mollic leptosol, rendzina (rendzic leptosol and calcocambisol (leptic cambisol. The productivity of these soils is highly correlated with depth and texture composition, and the impact of these factors is linked with soil type, climate and other site conditions. In the research area, soil types with low production potential such as rankers, rendzinas, limestone and dolomite calcomelanosol are dominant. Deeper variants of eutric cambisol, pseudogley and calcocambisol can be classified as soils with moderate to high production potential.

  9. ARN Training on Advance Methods for Internal Dose Assessment: Application of Ideas Guidelines

    International Nuclear Information System (INIS)

    Dose assessment in case of internal exposure involves the estimation of committed effective dose based on the interpretation of bioassay measurement, and the assumptions of hypotheses on the characteristics of the radioactive material and the time pattern and the pathway of intake. The IDEAS Guidelines provide a method to harmonize dose evaluations using criteria and flow chart procedures to be followed step by step. The EURADOS Working Group 7 'Internal Dosimetry', in collaboration with IAEA and Czech Technical University (CTU) in Prague, promoted the 'EURADOS/IAEA Regional Training Course on Advanced Methods for Internal Dose Assessment: Application of IDEAS Guidelines' to broaden and encourage the use of IDEAS Guidelines, which took place in Prague (Czech Republic) from 2-6 February 2009. The ARN identified the relevance of this training and asked for a place for participating on this activity. After that, the first training course in Argentina took place from 24-28 August for training local internal dosimetry experts. This paper resumes the main characteristics of this activity. (authors)

  10. Activities developed by the biological dosimetry laboratory of the Autoridad Regulatoria Nuclear - ARN of Argentina

    International Nuclear Information System (INIS)

    Biological dosimetry (DB) allows to estimate doses absorbed in individuals exposed to ionizing radiation through the quantification of stable and unstable chromosome aberrations (SCA and UCA). The frequency of these aberrations is referred to a calibration dose response curve (in vitro) to determine the doses of the individual to the whole body. The DB is a necessary support for programs of national radiation protection and response systems in nuclear or radiological emergencies in the event of accidental or incidental, single overexposure or large scale. In this context the Laboratory of Dosimetry Biological (LDB) of the Authority Regulatory Nuclear (ARN) Argentina develops and applies different dosimeters cytogenetic from four decades ago. These dosimeters provide a fact more within the whole of the information necessary for an accidental, complementing the physical and clinical dosimetry exposure assessment. The most widely used in the DB biodosimetric method is the quantification of SCA (dicentrics and rings Central) from a sample of venous blood. The LDB is accredited for the trial, under rules IRAM 301: 2005 (ISO / IEC 17025: 2005) and ISO 19238:2004. Test applies to the immediate dosimetry evaluation of acute exposures, all or a large part of the body in the range 0,1-5 Gy. In this context the LDB is part of the Latin American network of DB (LBDNet), BioDoseNet-who and response system in radiological emergencies and nuclear IAEA-RANET, being enabled to summon the LBDNet if necessary

  11. Argentine experience in the field of illegal immigration.

    Science.gov (United States)

    Villar, J M

    1984-01-01

    This article provides a brief history of Argentine policy toward migratory flows from neighboring countries and Europe, and concludes with statistics on the number of foreigners in Argentina in the 1970-80 period. Measures passed during the 1940s and 1950s were aimed at providing amnesty for foreigners who were residing in Argentina without immigrant status. However, the lack of an adequate administrative structure to regulate foreigners at the borders was a drawback for migration authorities and limited the possiblility of applying admission criteria effectively. By 1970, there were 583,000 foreigners from neighboring countries living in Argentina, which represented a 25% increase from 1960. 42% of these migrants were in the metropolitan region of the country, indicative of a shift away from employment in agriculture. Decree No. 87, passed in 1974, represented an extension of a migration policy aimed at granting ample facilities for permanent residence to aliens from contiguous countries and was designed to prevent abuse of clandestine workers by employers. As a result of this measure, 150,000 foreigners were able to settle legally in the country. A 1981 law, yet to be implemented, establishes a new legal framework aimed at fostering immigration and regulating the admission of foreigners. To attain the objective of settling workers in areas of the country considered of prime importance to economic development, the law provides for infrastructural investments and promotional measures in areas such as tax exemption and the granting of credit. The 1980 National Population Census indicated there were 677,000 foreigners from neighboring countries in Argentina. In that year, foreigners comprised 2.4% of the country's population and 3.1% of the inhabitants of the metropolitan region. These figures are indicative of a decline in the growth of immigration, most likely due to the decline in the purchasing power of workers' salaries in the late 1970s.

  12. DNA Barcoding Identifies Argentine Fishes from Marine and Brackish Waters

    Science.gov (United States)

    Mabragaña, Ezequiel; Díaz de Astarloa, Juan Martín; Hanner, Robert; Zhang, Junbin; González Castro, Mariano

    2011-01-01

    Background DNA barcoding has been advanced as a promising tool to aid species identification and discovery through the use of short, standardized gene targets. Despite extensive taxonomic studies, for a variety of reasons the identification of fishes can be problematic, even for experts. DNA barcoding is proving to be a useful tool in this context. However, its broad application is impeded by the need to construct a comprehensive reference sequence library for all fish species. Here, we make a regional contribution to this grand challenge by calibrating the species discrimination efficiency of barcoding among 125 Argentine fish species, representing nearly one third of the known fauna, and examine the utility of these data to address several key taxonomic uncertainties pertaining to species in this region. Methodology/Principal Findings Specimens were collected and morphologically identified during crusies conducted between 2005 and 2008. The standard BARCODE fragment of COI was amplified and bi-directionally sequenced from 577 specimens (mean of 5 specimens/species), and all specimens and sequence data were archived and interrogated using analytical tools available on the Barcode of Life Data System (BOLD; www.barcodinglife.org). Nearly all species exhibited discrete clusters of closely related haplogroups which permitted the discrimination of 95% of the species (i.e. 119/125) examined while cases of shared haplotypes were detected among just three species-pairs. Notably, barcoding aided the identification of a new species of skate, Dipturus argentinensis, permitted the recognition of Genypterus brasiliensis as a valid species and questions the generic assignment of Paralichthys isosceles. Conclusions/Significance This study constitutes a significant contribution to the global barcode reference sequence library for fishes and demonstrates the utility of barcoding for regional species identification. As an independent assessment of alpha taxonomy, barcodes provide

  13. DNA barcoding identifies Argentine fishes from marine and brackish waters.

    Directory of Open Access Journals (Sweden)

    Ezequiel Mabragaña

    Full Text Available BACKGROUND: DNA barcoding has been advanced as a promising tool to aid species identification and discovery through the use of short, standardized gene targets. Despite extensive taxonomic studies, for a variety of reasons the identification of fishes can be problematic, even for experts. DNA barcoding is proving to be a useful tool in this context. However, its broad application is impeded by the need to construct a comprehensive reference sequence library for all fish species. Here, we make a regional contribution to this grand challenge by calibrating the species discrimination efficiency of barcoding among 125 Argentine fish species, representing nearly one third of the known fauna, and examine the utility of these data to address several key taxonomic uncertainties pertaining to species in this region. METHODOLOGY/PRINCIPAL FINDINGS: Specimens were collected and morphologically identified during crusies conducted between 2005 and 2008. The standard BARCODE fragment of COI was amplified and bi-directionally sequenced from 577 specimens (mean of 5 specimens/species, and all specimens and sequence data were archived and interrogated using analytical tools available on the Barcode of Life Data System (BOLD; www.barcodinglife.org. Nearly all species exhibited discrete clusters of closely related haplogroups which permitted the discrimination of 95% of the species (i.e. 119/125 examined while cases of shared haplotypes were detected among just three species-pairs. Notably, barcoding aided the identification of a new species of skate, Dipturus argentinensis, permitted the recognition of Genypterus brasiliensis as a valid species and questions the generic assignment of Paralichthys isosceles. CONCLUSIONS/SIGNIFICANCE: This study constitutes a significant contribution to the global barcode reference sequence library for fishes and demonstrates the utility of barcoding for regional species identification. As an independent assessment of alpha

  14. IDENTIFICACIÓN DE miARNs CONSERVADOS EN YUCA (Manihot esculenta Indentification of Conserved miRNAs in Cassava (Manihot esculenta.

    Directory of Open Access Journals (Sweden)

    ÁLVARO LUIS PÉREZ-QUINTERO

    Full Text Available Los microARNs (miARNs son moléculas pequeñas de ARN utilizadas por los eucariotas como un mecanismo de control de la expresión génica. En plantas los miRNAs están implicados en la regulación de distintos aspectos del crecimiento y desarrollo, así como en la tolerancia a estrés biótico y abiótico. Muchos miARNs de plantas se encuentran conservados en todos los grupos de embriófitos, sin embargo aún existen muchas plantas para las que no se conoce el reportorio de miARNs. Asimismo se desconoce el papel que algunos miARNs pueden tener en procesos como defensa contra patógenos. En este trabajo se construyó una librería de ARNs pequeños a partir de muestras de tejidos de Manihot esculenta (yuca inoculados con la bacteria fitopatógena Xanthomonas axonopodis pv. manihotis (Xam, y se secuenciaron utilizando técnicas de secuenciación de nueva generación (Solexa/Illumina. Se identificaron en la librería 47 familias de miARNs de yuca conservados en otras plantas. Se cuantificó la expresión de estos miARNs, encontrándose similitudes con perfiles de expresión en otras plantas. Se encontró la secuencia de los precursores para algunos miARNs en secuencias de ESTs y GSSs de yuca. Asimismo se predijeron los blancos de estos miARNs en el set de ESTs encontrándose que muchos miARNs están dirigidos contra factores de transcripción, y que existe un gran porcentaje de posibles blancos con función desconocida. Este trabajo es el primer paso hacia entender cómo la vía de miARNs puede estar implicada en la interacción planta-patógeno en el sistema M. esculenta-Xam.microRNAs (miRNAs are small RNA molecules used by eukaryotes as a control mechanism for gene expression. In plants, miRNAs play a regulatory role in the expression of various genes involved in growth and development, as well in biotic and abiotic stress tolerance. Many plant miRNAs are conserved in all land plants; however the repertoire of miRNAs is still unknown for many

  15. Genetic variability and population structure in loci related to milk production traits in native Argentine Creole and commercial Argentine Holstein cattle

    Directory of Open Access Journals (Sweden)

    Golijow C.D.

    1999-01-01

    Full Text Available Many cattle breeds have been subjected to high selection pressure for production traits. Consequently, population genetic structure and allelic distribution could differ in breeds under high selection pressure compared to unselected breeds. Analysis of k-casein, aS1-casein and prolactin gene frequencies was made for Argentine Creole (AC and Argentine Holstein (AH cattle herds. The calculated FST values measured the degree of genetic differentiation of subpopulations, depending on the variances of gene frequencies.The AC breed had considerably more variation among herds at the aS1-casein and k-casein loci. Conservation strategies should consider the entire AC population in order to maintain the genetic variability found in this native breed.

  16. From 1962 the teaching of Methodology of Radioisotopes is continuous in the University of Buenos Aires of the Argentine Republic; Desde 1962 la ensenanza de Metodologia de Radioisotopos es continua en la Universidad de Buenos Aires de la Republica Argentina

    Energy Technology Data Exchange (ETDEWEB)

    Rivera, E.; Cremaschi, G.; Martin, G.; Zubillaga, M.; Cricco, G.; Davio, C.; Genaro, A.; Bianchin, A.; Mohamad, N.; Klecha, A.; Calmanovici, G.; Goldman, G.; Salgueiro, J.; Nunez, M.; Medina, V.; Gutierrez, A.; Leonardi, N.; Bergoc, R. [Laboratorio de Radioisotopos, Facultad de Farmacia y Bioquimica, Universidad de Buenos Aires, Junin 956, 1113- Buenos Aires (Argentina)]. e-mail: rmbergoc@arnet.com.ar

    2006-07-01

    methodologies is dictated. Formation of university extension: f) Methodology of Radioisotopes like Technicature. From 1962, the training of technicians was made parallel to that of professionals. From 1997 a Specific Course of Technicians in Nuclear Medicine is dictated, with an own curricular organization and chord to the basic formation of the assistants and its particular professional expectation. All the courses are credited by the Argentine Nuclear Regulatory Authority (ARN). The approval requires of a written exam and a colloquy in which the assistants demonstrate to be able to implement the measures of radiological protection in their labor environments. In their dictation participate professionals of the more high academic level (Ph.D.) and noted member specialists of the ARN. (Author)

  17. Behavioural and chemical evidence for multiple colonisation of the Argentine ant, Linepithema humile, in the Western Cape, South Africa

    Directory of Open Access Journals (Sweden)

    Wossler Theresa C

    2011-02-01

    Full Text Available Abstract Background The Argentine ant, Linepithema humile, is a widespread invasive ant species that has successfully established in nearly all continents across the globe. Argentine ants are characterised by a social structure known as unicoloniality, where territorial boundaries between nests are absent and intraspecific aggression is rare. This is particularly pronounced in introduced populations and results in the formation of large and spatially expansive supercolonies. Although it is amongst the most well studied of invasive ants, very little work has been done on this ant in South Africa. In this first study, we investigate the population structure of Argentine ants in South Africa. We use behavioural (aggression tests and chemical (CHC approaches to investigate the population structure of Argentine ants within the Western Cape, identify the number of supercolonies and infer number of introductions. Results Both the aggression assays and chemical data revealed that the Western Cape Argentine ant population can be divided into two behaviourally and chemically distinct supercolonies. Intraspecific aggression was evident between the two supercolonies of Argentine ants with ants able to discriminate among conspecific non-nestmates. This discrimination is linked to the divergence in cuticular hydrocarbon profiles of ants originating from the two supercolonies. Conclusions The presence of these two distinct supercolonies is suggestive of at least two independent introductions of this ant within the Western Cape. Moreover, the pattern of colonisation observed in this study, with the two colonies interspersed, is in agreement with global patterns of Argentine ant invasions. Our findings are of interest because recent studies show that Argentine ants from South Africa are different from those identified in other introduced ranges and therefore provide an opportunity to further understand factors that determine the distributional and spread

  18. Annual Report 2007 - ABACC - Brazilian-Argentine Agency for Accounting and Control of Nuclear Materials

    International Nuclear Information System (INIS)

    This document reports activities during the year 2007 related to: technical activities as application of safeguards; management of the Quadripartite Agreement and the SCCC - Common System for Accounting and Control of Nuclear Materials; training; technical cooperation; outlook for 2008 and; institutional, administrative and financial activities; technical glossary; list of brazilian facilities; list of argentine facilities and a list of institution of nuclear area

  19. Schooling and Governance: Pedagogical Knowledge and Bureaucratic Expertise in the Genesis of the Argentine Educational System

    Science.gov (United States)

    Southwell, Myriam

    2013-01-01

    The consolidation of the Argentine Federal Government by the 1870s aimed to modernise local society, establish state institutions and reach political stabilisation. Building a modern schooling system articulated both utopia and bureaucracy by establishing the use of knowledge as an instrument of social intervention, vindicating and legitimising…

  20. Draft genome of the globally widespread and invasive Argentine ant (Linepithema humile).

    Science.gov (United States)

    Smith, Christopher D; Zimin, Aleksey; Holt, Carson; Abouheif, Ehab; Benton, Richard; Cash, Elizabeth; Croset, Vincent; Currie, Cameron R; Elhaik, Eran; Elsik, Christine G; Fave, Marie-Julie; Fernandes, Vilaiwan; Gadau, Jürgen; Gibson, Joshua D; Graur, Dan; Grubbs, Kirk J; Hagen, Darren E; Helmkampf, Martin; Holley, Jo-Anne; Hu, Hao; Viniegra, Ana Sofia Ibarraran; Johnson, Brian R; Johnson, Reed M; Khila, Abderrahman; Kim, Jay W; Laird, Joseph; Mathis, Kaitlyn A; Moeller, Joseph A; Muñoz-Torres, Monica C; Murphy, Marguerite C; Nakamura, Rin; Nigam, Surabhi; Overson, Rick P; Placek, Jennifer E; Rajakumar, Rajendhran; Reese, Justin T; Robertson, Hugh M; Smith, Chris R; Suarez, Andrew V; Suen, Garret; Suhr, Elissa L; Tao, Shu; Torres, Candice W; van Wilgenburg, Ellen; Viljakainen, Lumi; Walden, Kimberly K O; Wild, Alexander L; Yandell, Mark; Yorke, James A; Tsutsui, Neil D

    2011-04-01

    Ants are some of the most abundant and familiar animals on Earth, and they play vital roles in most terrestrial ecosystems. Although all ants are eusocial, and display a variety of complex and fascinating behaviors, few genomic resources exist for them. Here, we report the draft genome sequence of a particularly widespread and well-studied species, the invasive Argentine ant (Linepithema humile), which was accomplished using a combination of 454 (Roche) and Illumina sequencing and community-based funding rather than federal grant support. Manual annotation of >1,000 genes from a variety of different gene families and functional classes reveals unique features of the Argentine ant's biology, as well as similarities to Apis mellifera and Nasonia vitripennis. Distinctive features of the Argentine ant genome include remarkable expansions of gustatory (116 genes) and odorant receptors (367 genes), an abundance of cytochrome P450 genes (>110), lineage-specific expansions of yellow/major royal jelly proteins and desaturases, and complete CpG DNA methylation and RNAi toolkits. The Argentine ant genome contains fewer immune genes than Drosophila and Tribolium, which may reflect the prominent role played by behavioral and chemical suppression of pathogens. Analysis of the ratio of observed to expected CpG nucleotides for genes in the reproductive development and apoptosis pathways suggests higher levels of methylation than in the genome overall. The resources provided by this genome sequence will offer an abundance of tools for researchers seeking to illuminate the fascinating biology of this emerging model organism. PMID:21282631

  1. Abstracts of the 81. national meeting on physics of the Argentine Physics Association (AFA)

    International Nuclear Information System (INIS)

    Abstracts are presented at the 81 Annual meeting of the Argentine Physics Association (AFA). The papers can be grouped under the following main topics: teaching, history and philosophy of physics; classical and quantum physics: particles and fields; statistical physics and thermodynamics; nuclear physics; atomic and molecular physics; optic; fluid dynamics and plasmas; condensed matter; instrumentation; geophysics and astrophysics. refs., ills

  2. English as an Instrumental Language: Language Displacement in the Anglo-Argentine Community.

    Science.gov (United States)

    Cortes-Conde, Florencia

    1994-01-01

    Surveyed 99 Anglo-Argentine students aged 10 through 18 at five Spanish-English bilingual schools in Buenos Aires about their language attitudes and usage. It found that, despite the prestige of the English language, Spanish had become the dominant language for most. Age and place of residency in Buenos Aires also had a significant effect on…

  3. Powerful motors: Kinship, citizenship and the transformation of the Argentine oil industry

    Science.gov (United States)

    Shever, Elana

    The privatization of the Argentine oil industry has been described as an unprecedented transfer of property, capital and control from the state to the corporate sphere, but this study demonstrates that the privatization process is better understood as a transformation of the historical configurations of oil-fueled development, political communities and human subjectivities. This dissertation probes the development of the state-led oil industry, and the shift to a corporate-led one, through an ethnography of Argentines differently positioned in relation to the global oil industry. The ethnography explores the lives of middle class oil workers and their families in Northwest Patagonia, impoverished residents of the shanty neighborhoods near the refineries in metropolitan Buenos Aires, and affluent employees of the translocal corporations operating in the Argentine oil fields. After the Introduction delineates this study's four principal interventions into anthropological scholarship, each subsequent chapter engages a particular problem that cuts across the Argentine oil fields and the anthropological theoretical fields. Chapter Two scrutinizes the historical construction of the Argentine subterritory as a "natural" space of value. Chapters Three and Four investigate the articulation of capitalist production and filial reproduction. These chapters argue that sentiment is a crucial generative force that has shaped the oil industry, company towns and worker families from the founding of the state-owned oil company in beginning of the twentieth century to its conversion into a corporate-owned one at the century's close. Chapters Five and Six examine the emergence of consumer citizenship and corporate citizenship out of Argentine neoliberalismo and its transformation of the oil industry. They argue that consumer and corporate citizenship are both reformulations of the older traditions of liberalism and Peronism. All the chapters of this dissertation illustrate that the

  4. Structure of the Escherichia coli ArnA N-formyltransferase domain in complex with N(5) -formyltetrahydrofolate and UDP-Ara4N.

    Science.gov (United States)

    Genthe, Nicholas A; Thoden, James B; Holden, Hazel M

    2016-08-01

    ArnA from Escherichia coli is a key enzyme involved in the formation of 4-amino-4-deoxy-l-arabinose. The addition of this sugar to the lipid A moiety of the lipopolysaccharide of pathogenic Gram-negative bacteria allows these organisms to evade the cationic antimicrobial peptides of the host immune system. Indeed, it is thought that such modifications may be responsible for the repeated infections of cystic fibrosis patients with Pseudomonas aeruginosa. ArnA is a bifunctional enzyme with the N- and C-terminal domains catalyzing formylation and oxidative decarboxylation reactions, respectively. The catalytically competent cofactor for the formylation reaction is N(10) -formyltetrahydrofolate. Here we describe the structure of the isolated N-terminal domain of ArnA in complex with its UDP-sugar substrate and N(5) -formyltetrahydrofolate. The model presented herein may prove valuable in the development of new antimicrobial therapeutics.

  5. Pregled hidrantnega omrežja in požarne ogroženosti objektov v naselju

    OpenAIRE

    Jerončič, Špela

    2016-01-01

    V magistrski nalogi sem analizirala delovanje hidrantnega omrežja na območju Četrtne skupnosti Trnovo. Analizo sem izvedla s pomočjo programa QGIS, verzija 2.10.1. Program je dosegljiv na spletu. V prvem delu naloge je teoretičen opis delovanja vodovodnega sistema in oskrbe z vodo. Opisani so tudi geografski informacijski sistemi in osnove načrtovanja požarne varnosti ter ukrepi varstva pred požarom. Sledi opis zakonodaje v Republiki Sloveniji. V nadaljevanju je izvedena analiza hidrantnega o...

  6. Examination of seed characters of Vachellia farnesiana (L. Wight & Arn. as potentially applicable species in Serbia under climate change conditions

    Directory of Open Access Journals (Sweden)

    Grbić Mihailo

    2014-01-01

    Full Text Available Seeds of sweet acacia (Vachellia farnesiana (L. Wight & Arn. were mechanically scarified and treated with concentrated sulfuric acid in order to determine the permeability degree of the seed coat. The obtained results suggest a stronger form of seed coat dormancy that prevents potential invasiveness after introduction. The species is recommended for limited cultivation in outdoor conditions and unlimited use in interior spaces as full size or bonsai trees. [Projekat Ministarstva nauke Republike Srbije, br. 43007: Istraživanje klimatskih promena i njihovog uticaja na životnu sredinu: praćenje uticaja, adaptacija i ublažavanje

  7. Participation of the ARN (Autoridad Regulatoria Nuclear) in the quality assessment program of the EML-USDOE

    International Nuclear Information System (INIS)

    Full text: A radiochemical laboratory must count with optimized analytical techniques and calibrated measurement systems in order to get reliable results. In addition to the internal controls that each laboratory must carry out, it is indispensable to include in the quality assurance programs, intercomparisons with qualified laboratories. The Nuclear Regulatory Authority (ARN) of the Republica Argentina participates since 1995, in the Quality Assessment Program organized by the Environmental Measurements Laboratory - EML, of the United States. The participation in this program consist in: 1) Measurement of different gamma emitters in 4 environmental matrixes: water, filter, soil and vegetation; 2) Determination of actinides in the named matrixes; 3) Determination of tritium and iron-55 in water; 4) Determination of strontium-90 in water, filter, soil and vegetation; 5) Gross alpha and gross beta measurement in water and filter. In this paper, the results of the ARN in the six previous intercomparisons are exposed. An analysis of the deviations of the informed dates related to the EML values are made, and they are compared with the results of the rest of the participating laboratories. The determination methods and the measurement systems utilized in each matrix and for each radionuclide, are mentioned. (author)

  8. Making Sense of an Unstable Legislature: Committee Assignments in the Argentine Chamber of Deputies, 1946–2001

    OpenAIRE

    Silvina Lilian Danesi; Carleton University; Ludovic Rheault; University of Montreal

    2012-01-01

    Latin American legislatures have gone largely unstudied, with the functioning of the Argentine Chamber of Deputies prior to the 1980s being an entirely unexplored subject. This paper fills that gap by examining the organization of the Chamber, with particular focus on its standing committee system from 1946 to 2001. We assess the portability of two U.S.-based theoretical approaches to legislative organization by applying them to committee assignments. An original data set of Argentine deputie...

  9. Indirect effects of Argentine ant and honeydew-producing insect mutualisms on California red scale in a citrus agroecosystem

    OpenAIRE

    Kizner, Michelle Cara

    2010-01-01

    In San Diego County, a major economic impact of the Argentine ant occurs in citrus agroecosystems, where ants interfere with biological control of key insect pests, especially California red scale. Ant control is considered a critical component of integrated pest management (IPM) of several citrus pests, but IPM recommendations fail to consider quantitative relationships between levels of Argentine ant abundance and those of the economic pests. This serious gap in understanding impedes develo...

  10. Argentine ant invasion associated with loblolly pines in the southeastern United States: minimal impacts but seasonally sustained.

    Science.gov (United States)

    Rowles, Alexei D; Silverman, Jules

    2010-08-01

    Invasive ants are notorious for directly displacing native ant species. Although such impacts are associated with Argentine ant invasions (Linepithema humile) worldwide, impacts within natural habitat are less widely reported, particularly those affecting arboreal ant communities. Argentine ants were detected in North Carolina mixed pine-hardwood forest for the first time but were localized on and around loblolly pines (Pinus taeda), probably because of association with honeydew-producing Hemiptera. We explored the potential impacts of L. humile on arboreal and ground-foraging native ant species by comparing interspersed loblolly pines invaded and uninvaded by Argentine ants. Impacts on native ants were assessed monthly over 1 yr by counting ants in foraging trails on pine trunks and in surrounding plots using a concentric arrangement of pitfall traps at 1, 2, and 3 m from the base of each tree. Of floristics and habitat variables, higher soil moisture in invaded plots was the only difference between plot types, increasing confidence that any ant community differences were caused by Argentine ants. Overall patterns of impact were weak. Composition differed significantly between Argentine ant invaded and uninvaded trunks and pitfalls but was driven only by the presence of Argentine ants rather than any resulting compositional change in native ant species. Native ant abundance and richness were similarly unaffected by L. humile. However, the abundance of individual ant species was more variable. Although numbers of the arboreal Crematogaster ashmeadi (Myrmicinae) declined on and around invaded pines, epigeic Aphaenogaster rudis (Myrmicinae) remained the most abundant species in all plots. Argentine ant densities peaked in late summer and fall, therefore overlapping with most native ants. Unexpected was their continued presence during even the coldest months. We provide evidence that Argentine ants can invade and persist in native North Carolina forests, probably

  11. High-resolution stable isotope stratigraphy of the upper Cambrian and Ordovician in the Argentine Precordillera

    DEFF Research Database (Denmark)

    Sial, A.N.; Peralta, S.; Gaucher, C.;

    2013-01-01

    We report the occurrence of important carbon isotope excursions in early Paleozoic formations of the Eastern and Central Argentine Precordillera. The Steptoean positive isotope carbon excursion (SPICE) is known from North America, Kazakhstan, South China, Australia and South America, and the nega......We report the occurrence of important carbon isotope excursions in early Paleozoic formations of the Eastern and Central Argentine Precordillera. The Steptoean positive isotope carbon excursion (SPICE) is known from North America, Kazakhstan, South China, Australia and South America......, and the negative isotope carbon excursion (SNICE) has been described for the first time in South America. We report here the record of the SPICE and SNICE in a single section in the Eastern Precordillera. In the Central Precordillera, a minor middle Darriwilian positive carbon isotope excursion (MDICE) and a late...

  12. Proceedings of the 6. Argentine congress on radiation protection and nuclear safety

    International Nuclear Information System (INIS)

    The 6th Argentine Congress on Radiation Protection and Nuclear Safety was organized by the Radioprotection Argentine Society, in Buenos Aires, between the 22 and 24 of september of 1998. In this event, were presented almost 66 papers in the following sessions, about these subjects: 1.- Safety in nuclear installations. 2.- Control of nuclear material and physical protection of nuclear installations. 3.- Programs of quality assurance. 4.- Training, technical information and public information. 5.- Physical dosimetry. 6.- Physical dosimetry and occupational radiation protection. 7.- Exposure of the natural radiation. 8.- Environmental radiological safety. 9.- Biological effects of the ionizing radiations and biological dosimetry. 10.- Radiological protection of the medical practice and the radiological emergencies. 11.- Radioactive wastes management. 12.- Transport of radioactive materials

  13. How Argentine farmers overpowered Monsanto : the mobilization of knowledge-users and intellectual property regimes

    OpenAIRE

    Filomeno, Felipe Amin

    2013-01-01

    "Since the 1980s, governments and transnational corporations from core countries led by the United States have driven a global upward ratchet of intellectual property protection. In agriculture, this has meant strengthening the rights of seed companies over the plant varieties they develop and curtailing the rights of farmers over the seeds they cultivate. Exceptionally, from the 1990s to 2013, Argentine soy growers overcame the pressures from the seed industry, guaranteeing the right to free...

  14. Draft Genome Sequences of Four Enterococcus faecium Strains Isolated from Argentine Cheese

    Science.gov (United States)

    Martino, Gabriela P.; Quintana, Ingrid M.; Espariz, Martín; Blancato, Victor S.; Gallina Nizo, Gabriel; Esteban, Luis

    2016-01-01

    We report the draft genome sequences of four Enterococcus faecium strains isolated from Argentine regional cheeses. These strains were selected based on their technological properties, i.e., their ability to produce aroma compounds (diacetyl, acetoin, and 2,3-butanediol) from citrate. The goal of our study is to provide further genetic evidence for the rational selection of enterococci strains based on their pheno- and genotype in order to be used in cheese production. PMID:26847907

  15. Industry-Wide Work Rules and Productivity: Evidence from Argentine Union Contract Data

    OpenAIRE

    Lamarche, Carlos

    2013-01-01

    In the early 1990's, the Argentine government promoted a framework for productivity-based negotiations between firms and unions at low levels of organization. The policy weakened the industry-wide collective bargaining system, which sets working conditions for all firms in an industry. This paper employs newly developed quantile regression approaches to investigate the effect of union practices on productivity within the context of the reform. The findings show that (i) industry-wide practice...

  16. The executive and legislative branches and trade unions in the Argentine social security reform

    Directory of Open Access Journals (Sweden)

    Sidney Jard da Silva

    2007-01-01

    Full Text Available This article analyzes the interaction between organized labor and government during reform of the pension system in Argentina. The purpose is to investigate the political and institutional conditions favorable to the inclusion of trade unions in a negotiated pension reform process. The Argentine pattern of union-government interaction was shown to be shaped more by the peculiarities of the decision-making process than by the demands and power of union organizations.

  17. Efficacy of Argentine propolis formulation for topical treatment of canine otitis externa

    OpenAIRE

    L.A Lozina; M.E Peichoto; S.I Boehringer; P. Koscinczuk; G.E Granero; O.C Acosta

    2010-01-01

    The therapeutic effects of Argentine propolis ear drop formulation on canine otitis externa were evaluated. Forty-eight dogs with symptoms of otitis externa were randomly assigned to double-blinded, controlled clinical trial to evaluate the efficacy of topical formulation with propolis versus a topical placebo in the treatment of otitis externa. The propolis preparation and placebo were administrated into both external ear canals, twice daily for 14 days. Throughout the study, clinical examin...

  18. Quantitative analysis of the effects of the exotic Argentine ant on seed-dispersal mutualisms

    OpenAIRE

    Rodriguez-Cabal, Mariano A.; Stuble, Katharine L.; Nuñez, Martin A.; Sanders, Nathan J.

    2009-01-01

    Although it is increasingly clear that exotic invasive species affect seed-dispersal mutualisms, a synthetic examination of the effect of exotic invasive species on seed-dispersal mutualisms is lacking. Here, we review the impacts of the invasive Argentine ant (Linepithema humile) on seed dispersal. We found that sites with L. humile had 92 per cent fewer native ant seed dispersers than did sites where L. humile was absent. In addition, L. humile did not replace native seed dispersers, as rat...

  19. Uncertainty and Portfolio Dollarization. The Argentine Case in the Last Half Century

    OpenAIRE

    Tamara Burdisso; Eduardo Ariel Corso

    2011-01-01

    The aim of this document is to quantify the effects of uncertainty over financial assets dollarization of the Argentine non financial private sector. Our main concern is to illustrate to what extent uncertainty affects the degree of substitution between assets denominated in local and foreign currencies. Using the optimal portfolio selection theory combined with the multivariate GARCH methodology in order to estimate a model with heteroskedastic covariance matrix, we are able to estimate the ...

  20. International Financial Contagion: Evidence from the Argentine Crisis of 2001-2002

    OpenAIRE

    Boschi, Melisso

    2004-01-01

    The aim of this paper is to look for evidence of financial contagion suffered by several countries as a result of the latest Argentine crisis. I focus my attention on a set of countries: Brazil, Mexico, Russia, Turkey, Uruguay, and Venezuela. I also focus exclusively on three financial markets: foreign exchange, stock exchange, and sovereign debt. In order to test the hypothesis of contagion, Vector Autoregression (VAR) models and instantaneous correlation coefficients corrected for het...

  1. Managerial form, ownership and efficiency: a case-study of Argentine agriculture

    OpenAIRE

    Gallacher, Marcos; Goetz, Stephan J.; Debertin, David L.

    1994-01-01

    In agriculture, studies dealing with the separation of ownership from control have focused on sharecropping, paying little attention to the impact of management and ownership on efficiency. Using Argentine data, this study tests the hypothesis that efficiency is a function of type of management, concentration of ownership, and mechanisms for monitoring managers. Results show that management, ownership and monitoring have a greater impact on marketing efficiency than either on technical or cos...

  2. Draft genome of the globally widespread and invasive Argentine ant (Linepithema humile)

    OpenAIRE

    Smith, Christopher D.; Zimin, Aleksey; Holt, Carson; Abouheif, Ehab; Benton, Richard; Cash, Elizabeth; Croset, Vincent; Currie, Cameron R; Elhaik, Eran; Elsik, Christine G.; Fave, Marie-Julie; Fernandes, Vilaiwan; Gadau, Jürgen; Gibson, Joshua D.; Graur, Dan

    2011-01-01

    Ants are some of the most abundant and familiar animals on Earth, and they play vital roles in most terrestrial ecosystems. Although all ants are eusocial, and display a variety of complex and fascinating behaviors, few genomic resources exist for them. Here, we report the draft genome sequence of a particularly widespread and well-studied species, the invasive Argentine ant (Linepithema humile), which was accomplished using a combination of 454 (Roche) and Illumina sequencing and community-b...

  3. Proceedings of the 76. meeting of the Argentine Physics Association (AFA). V.3

    International Nuclear Information System (INIS)

    Works are presented at the 76 Annual meeting of the Argentine Physics Association. The papers can be grouped under the following main topics: teaching, history and philosophy of physics, mathematical methods, classical and quantum physics, mechanics and fields, statistical physics and thermodynamics, elementary particle physics and fields, nuclear physics, and molecular physics, atomic collisions, optics, fluid dynamics and plasmas, condensed matter, instrumentation, geophysics, astronomy and astrophysics. refs., ills

  4. Food habits of the great horned owl in northwestern Argentine Patagonia: the role of introduced lagomorphs

    OpenAIRE

    Donázar, José A.; Travaini, Alejandro; Ceballos, Olga; Delibes, M.; Hiraldo, F.

    1997-01-01

    —Pellets of adult and nestling Great Horned Owls (Bitho tirginianus) were collected at 12 owl territories nearJunin de los Andes (Neuquen, Argentine Patagonia) during the breeding seasons of 1991— 92 and 1994—95. Mammals represented 69% of the total prey items (N = 1324) identified and Reithrodon auritus (16%), Lepuseuwpaeus (12%) and Ctenomys haigi (12%) were the most common species. Anhropods aecounted for 27% of the total prey by numbers. The two main prey items b...

  5. Quality assurance programmes and normalization for the Argentine-Brazilian integration

    International Nuclear Information System (INIS)

    Within the frame of the tasks developed by the Argentine-Brazilian Contractors Coordination Committee in the nuclear area, which was at the beginning promoted by the Contractor Committee of the Argentine Association of Nuclear Technology, a working team was created between both countries in order to analyze the existing regulations and the Quality Assurance systems applied in Brazil and Argentina for their nuclear projects. This paper describes the steps to be followed so as to fulfill the compatibility of the rules, quality assurance and firm certification, laboratories, personnel and materials, and the applicable quality assurance programmes. At first, the methodology applied was the collection of the information and the existing regulations in each one of the countries, to exchange them, analyze them and arrange joint meetings and organize a seminar with experts from both countries to develop and discuss the objectives of this working team. As a result of these activities, the criteria adopted will allow, together with another actions, that both Argentine and Brazilian firms make exchanges and integrations in the nuclear field to supply Atucha II and Angra II. (Author)

  6. Facing the challenge of stakeholders involvement: the Argentine nuclear regulatory case

    International Nuclear Information System (INIS)

    The Nuclear Regulatory Authority of Argentina (ARN) is an autonomous body reporting to the Presidency of Argentina, empowered to regulate and control the nuclear activity with regards to radiation and nuclear safety, physical protection and nuclear non-proliferation issues. Under the executive decree 1172/2003, which makes reference to the accessibility of public information to increase transparency of government actions and specially to promote public involvement, ARN has the legal obligation to inform of its activities in an accurate, comprehensive and understandable manner. The re-launching of the nuclear plan in 2006 and the repercussions this provoked on society highlighted the need to reinforce the legitimacy of the regulatory role and the promotion of confidence on its works to ensure the safety of the people. Therefore it was considered necessary to involve the society further in this programme by achieving greater public understanding and awareness of the nuclear regulatory activities. The more the public is conscious of the role of the regulator, conceiving it as a trustworthy and autonomous authority, the easier it is for the regulator to fulfil its obligations. As ARN has a strong commitment with society and considering that communication with the general public, as an external stakeholder, is a means to establishing and maintaining public trust and confidence, the implementation of a new communication programme became a key issue. In this scenario, ARN faced a challenge it was not prepared to handle and thus created a Division to deal with institutional communication and allow and ease the interaction with society. Within this Division, one of the methods chosen to achieve a better interaction with society was the use of a technological tool to attend possible inquiries, increasing and facilitating a greater involvement of the stakeholders. With this in mind a 'Mail-Info' was established because it allows a fast, accessible, easy and informal way of

  7. Impact of supercritical CO2 injection on petrophysical and rock mechanics properties of chalk: an experimental study on chalk from South Arne field, North Sea

    DEFF Research Database (Denmark)

    Alam, Mohammad Monzurul; Hjuler, Morten Leth; Christensen, Helle Foged;

    2011-01-01

    Changes in chalk due to EOR by injecting supercritical CO2 (CO2-EOR) can ideally be predicted by applying geophysical methods designed from laboratory-determined petrophysical and rock mechanics properties. A series of petrophysical and rock mechanics tests were performed on Ekofisk Formation...... and Tor Formation chalk of the South Arne field to reveal the changes in petrophysical and rock mechanics properties of chalk due to the injection of CO2 at supercritical state. An increase in porosity and decrease in specific surface was observed due to injection of supercritical CO2. This indicates...... as indicated by NMR T2 relaxation time was observed. Rock mechanics testing indicates that in 30% porosity chalk from the South Arne field, injection of supercritical CO2 has no significant effect on shear strength and compaction properties, while there is probably a slight decrease in stiffness properties...

  8. Participation of ARN-Argentina in the quality assessment program, EML-USDOE since 1995 to 1999

    International Nuclear Information System (INIS)

    A radiochemical laboratory must apply optimized analytical techniques and calibrated measurement systems so as to obtain accurate results. In order to achieve this, it is necessary to participate in intercomparison programs with specialized laboratories, as well as to have internal controls that must routinely be done, like efficiencies, backgrounds and chemical yields. The Nuclear Regulatory Authority, in charge of the radiological protection in the Argentine Republic, participates since 1995 in the Quality Assessment Program (QAP) carried out by the Environmental Measurements Laboratory-United States Department of Energy. The aim of this participation is to assess the quality of the reported measurements. The results of these ten partaking are detailed and analyzed in this work. (authors)

  9. Hydrological cycles and trends in the NW Argentine Andes since 1940

    Science.gov (United States)

    Castino, Fabiana; Bookhagen, Bodo; Strecker, Manfred

    2016-04-01

    Strong spatiotemporal variability characterizes the hydrometeorological pattern in the NW Argentine Andes, draining parts of the most populated and economically important areas of South America. During the summer monsoon season (DJF), the eastern flanks of the central Andes are characterized by deep convection, exposing them to extreme hydrometeorological events. These often result in floods and landslides with disastrous effects on the local populations. Here, we analyze river discharge to explore long-term hydrological variability in NW Argentine Andes and the linked climate controlling processes. We rely on 13 daily river discharge time series relevant to drainage basins spanning several size orders (102-104 km2) starting in 1914 and define different hydro-climate indices both for the mean and the extreme hydrological events. We apply quantile regression to investigate long-term trends and spectral analysis associated with cross-correlation with SST-based climate indices to identify links to large-scale climate variability modes. River discharge presents a pronounced and coherent variability signal in South America, particularly for wide drainage basins, such as the Amazon and Paraná/La Plata rivers, strongly associated to Pacific and Atlantic Oceans Sea Surface Temperature (SST) anomalies (i.e. ENSO, PDO, AMO). Our analysis evidences that in the NW Argentine Andes, mean discharge values are characterized by statistically significant, mostly positive, long-term trends since 1940, whereas the extreme events present a more non-unidirectional trend pattern. Also, coherent multi-annual to multi-decadal cycles characterizing the discharge pattern have been identified, suggesting that processes linked to SST anomaly-modes strongly control the hydrometeorology variability in the NW Argentina Andes.

  10. Hantavirus reservoir Oligoryzomys longicaudatus spatial distribution sensitivity to climate change scenarios in Argentine Patagonia

    Directory of Open Access Journals (Sweden)

    González Paula LM

    2009-07-01

    Full Text Available Abstract Background Oligoryzomys longicaudatus (colilargo is the rodent responsible for hantavirus pulmonary syndrome (HPS in Argentine Patagonia. In past decades (1967–1998, trends of precipitation reduction and surface air temperature increase have been observed in western Patagonia. We explore how the potential distribution of the hantavirus reservoir would change under different climate change scenarios based on the observed trends. Methods Four scenarios of potential climate change were constructed using temperature and precipitation changes observed in Argentine Patagonia between 1967 and 1998: Scenario 1 assumed no change in precipitation but a temperature trend as observed; scenario 2 assumed no changes in temperature but a precipitation trend as observed; Scenario 3 included changes in both temperature and precipitation trends as observed; Scenario 4 assumed changes in both temperature and precipitation trends as observed but doubled. We used a validated spatial distribution model of O. longicaudatus as a function of temperature and precipitation. From the model probability of the rodent presence was calculated for each scenario. Results If changes in precipitation follow previous trends, the probability of the colilargo presence would fall in the HPS transmission zone of northern Patagonia. If temperature and precipitation trends remain at current levels for 60 years or double in the future 30 years, the probability of the rodent presence and the associated total area of potential distribution would diminish throughout Patagonia; the areas of potential distribution for colilargos would shift eastwards. These results suggest that future changes in Patagonia climate may lower transmission risk through a reduction in the potential distribution of the rodent reservoir. Conclusion According to our model the rates of temperature and precipitation changes observed between 1967 and 1998 may produce significant changes in the rodent

  11. Quantitative determination of guggulsterone in existing natural populations of Commiphora wightii (Arn.) Bhandari for identification of germplasm having higher guggulsterone content

    OpenAIRE

    Kulhari, Alpana; Sheorayan, Arun; Chaudhury, Ashok; Sarkar, Susheel; Kalia, Rajwant K.

    2014-01-01

    Guggulsterone is an aromatic steroidal ketonic compound obtained from vertical rein ducts and canals of bark of Commiphora wightii (Arn.) Bhandari (Family - Burseraceae). Owing to its multifarious medicinal and therapeutic values as well as its various other significant bioactivities, guggulsterone has high demand in pharmaceutical, perfumery and incense industries. More and more pharmaceutical and perfumery industries are showing interest in guggulsterone, therefore, there is a need for its ...

  12. Evaluation of the in vitro and in vivo antioxidant potential of whole plant extracts of Hedyotis puberula (G. Don) R. Br. ex Arn.

    OpenAIRE

    Joseph, Jince M.; Sowndhararajan, Kandhasamy; Manian, Sellamuthu

    2011-01-01

    The total phenolic content and in vitro and in vivo antioxidant activities of the whole plants of Hedyotis puberula (G. Don) R.Br. ex Arn. were appraised. The methanol extract of the plant contained higher levels of total phenolics, tannins and flavonoids content than other solvent extracts. Extracts were screened for antioxidant and free radical scavenging activities using various in vitro model systems. The methanol extract manifested strongest antioxidant and free radical scave...

  13. Musical Preferences of Argentines and Uruguayans Living in Australia: Implications for Music Therapy Clinical Practice

    Directory of Open Access Journals (Sweden)

    Christobel C Moore

    2009-03-01

    Full Text Available This article provides an overview of the elements that impact on the cultural identity of Argentines and Uruguayans in Australia, their relationship to music and the implications for music therapy clinical practice. A survey collected quantitative data on musical preferences and qualitative data on what respondents associated with different genres. The final sample of 12 respondents was not representative of the Australian communities, but collected data was congruent with the reviewed literature and significant internal consistency was observed.Classical music, ballads, folk and tango had the highest preference across age groups with consistent associations on musical, intrapersonal, interpersonal and abstract levels.

  14. Equity during an economic crisis: financing of the Argentine health system.

    Science.gov (United States)

    Cavagnero, Eleonora; Bilger, Marcel

    2010-07-01

    This article analyses the redistributive effect caused by health financing and the distribution of healthcare utilization in Argentina before and during the severe 2001/2002 economic crisis. Both dramatically changed during this period: the redistributive effect became much more positive and utilization shifted from pro-poor to pro-rich. This clearly demonstrates that when utilization is contingent on financing, changes can occur rapidly; and that an integrated approach is required when monitoring equity. From a policy perspective, the Argentine health system appears vulnerable to economic downturns mainly due to high reliance on out-of-pocket payments and the strong link between health insurance and employment.

  15. Graphic correlation of Argentine Precordillera and North American Lower/Middle Ordovician sections

    Institute of Scientific and Technical Information of China (English)

    Walter C.Sweet; Guillermo L.Albanesi

    2006-01-01

    @@ Present work demonstrates that a level equivalent to the proposed Whiterockian basal GSSP can be located graphically in a composite section anchored by the Niquivil section of the Argentine Precordillera. The FAD of Cooperignathus aranda in the Niquivil composite section, a candidate for GSSP of the Lower/Middle Ordovician boundary, projects to a level very close to the FAD of Tripodus laevis in the Whiterockian reference section. The conodont-based framework reported here includes the potential for recognition of the proposed Whiterock Canyon-based GSSP, the Cooperignathus aranda-based GSSP, and, possibly, the Baltoniodus triangularisbased GSSP, recently proposed.

  16. Social and cognitive determinants in entrepreneurial interest: an exploratory study among argentine students

    Directory of Open Access Journals (Sweden)

    ANA MARÍA ROMERO MARTÍNEZ

    2008-06-01

    Full Text Available In this paper we analyze the intentions in creating a business on the part of a group of Argentine students in Strategic Human Resources Management in the University of Buenos Aires. The results of the study show that these students want to create their own business, but their possibilities depend on several factors. Among all of them, self-effi cacy stands out; those students who show more self-effi cacy are those who demonstrate more intention for creating a business. This intention is minor for the students who possess more social support. Neither family charges nor previous experience in entrepreneurship have a signifi cant effect.

  17. Food habits of common barn-owls along an elevational gradient in Andean Argentine Patagonia

    OpenAIRE

    Travaini, Alejandro; Donázar, José A.; Ceballos, Olga; Rodríguez, Alejandro; Hiraldo, F.; Delibes, M.

    1997-01-01

    We evaluated the diet of Common Barn-owls (Tyto alba) along an elevational gradient in Argentine Patagonia. Small mammals (mainly rodents) were the main prey accounting for 93.2% of total prey items. Consumption of rodents appeared to be dependent on their availability. Sizes of mam­ malian prey were variable but most ranged from 10—100 g in body mass. We concluded that the diet of these barn owls could be used as an index of cricetid rodent populations along ...

  18. Efficacy of Argentine propolis formulation for topical treatment of canine otitis externa

    Directory of Open Access Journals (Sweden)

    L.A Lozina

    2010-12-01

    Full Text Available The therapeutic effects of Argentine propolis ear drop formulation on canine otitis externa were evaluated. Forty-eight dogs with symptoms of otitis externa were randomly assigned to double-blinded, controlled clinical trial to evaluate the efficacy of topical formulation with propolis versus a topical placebo in the treatment of otitis externa. The propolis preparation and placebo were administrated into both external ear canals, twice daily for 14 days. Throughout the study, clinical examination and microbiological analysis of dogs ear exudates were made. The most frequent microorganisms isolated in culture media were: Malassezia pachydermatis (54.2%, Staphylococcus aureus (43.8%, coagulase-negative Staphylococcus (25.0%, Pseudomonas aeruginosa (20.8%, Candida albicans (18.8%, Proteus mirabilis (16.7%, Streptococcus spp. (16.7%, Enteroccocus faecalis (12.5%, Escherichia coli (12.5%, Staphylococcus intermedius (6.3%, Klebsiella spp. (4.2%, andCandida glabrata (2.1%. Whereas the control group did not recover from the infectious ear disease, the propolis preparation exhibited antimicrobial activity against most of the microorganisms isolated from samples of the treated group. In addition, no propolis-adverse effects were observed. This allowed propolis-treated patients to show a significant improvement of the clinical parameters. Thus, this new Argentine propolis ear drop formulation may be used for topical treatment of otitis externa in dogs.

  19. Portrayals of character smoking and drinking in Argentine-, Mexican- and US-produced films.

    Science.gov (United States)

    Kollath-Cattano, Christy; Abad-Vivero, Erika N; Mejia, Raul; Perez-Hernandez, Rosaura; Sargent, James D; Thrasher, James F

    2016-09-01

    The aim of this study was to assess film character portrayals of tobacco and alcohol use in US and nationally-produced films that were popular in Argentina and Mexico from 2004-2012. We performed a content analysis of these films (n=82 Argentine, 91 Mexican, and 908 US films, respectively). Chi-squares and t-tests were used to compare characteristics of characters who smoked or drank by country of movie production. Then data from all countries were pooled, and generalized estimating equation (GEE) models were used to determine independent correlates of character smoking or drinking. There were 480 major characters for Argentine-, 364 for Mexican-, and 4962 for US-produced films. Smoking prevalence among movie characters was similar to population smoking prevalence in Mexico (21%) and Argentina (26%), but about half in the US (11%), where movie product placements are restricted. Movie smoking declined over the period in all three countries. Movie alcohol prevalence was 40-50% across all countries and did not change with time. Demographic predictors of character smoking included: being male, 18 and older, having negative character valence. Movie smoking was not associated with lower SES. Predictors of character drinking included: being age 18 and older and positive character valence. Smoking and drinking predicted each other, illicit drug use, and higher scores for other risk behaviors. This suggests that policy development in Mexico and Argentina may be necessary to reduce the amount of character tobacco and alcohol use in films. PMID:27404576

  20. Prosecuting International Crimes at National Level: Lessons from the Argentine ‘Truth-Finding Trials’

    Directory of Open Access Journals (Sweden)

    Elena Maculan

    2012-01-01

    Full Text Available Truth-finding trials (juicios por la verdad constitute a novel solution devised by the Argentine judicial system to cope with crimes committed by the past military dictatorship. This mechanism uses criminal courts as well as criminal procedure in order to investigate the truth about the dictatorship's crimes; however, the trials allow judges neither to establish criminal responsibility nor to punish the perpetrators of crimes. This limitation is due to the inability, imposed by the Full Stop and Due Obedience Laws, to prosecute the perpetrators of crimes.From the perspective of criminal law, truth-finding trials present two problematic features: firstly, their creation and regulation are set by judges, which has caused the development of many non-homogeneous local solutions and, secondly, their hybrid nature, which entails a possible subversion of conventional forms and goals in the context of the criminal trial.The paper also describes the current situation, since the Argentine impunity laws were declared unconstitutional and criminal proceedings reopened. The new framework provokes questions about the relationship between the reopened criminal trials and the truth-finding investigations, not only with regard to evidentiary issues but also with respect to the reason why the truth-finding investigations are still held.Finally, the shift from a non-punitive approach to the current full criminal accountability seems to suggest that truth-finding trials were merely a temporary solution, while the notion of the full prosecution and punishment of State crimes was never really set aside.

  1. Modeling Tree Characteristics of Individual Black Pine (Pinus nigra Arn. Trees for Use in Remote Sensing-Based Inventory

    Directory of Open Access Journals (Sweden)

    Ivan Balenović

    2015-02-01

    Full Text Available The main aim was to develop models for predicting diameter at breast height (DBH, merchantable tree volume (V, and aboveground biomass (AGB of individual black pine (Pinus nigra Arn. trees grown in Sub-Mediterranean Croatian pure even-aged forests, which will be suitable for remote sensing based forest inventories. In total, eight variables obtained from field measurement, existing database, and digital terrain model were candidates for independent variables in regression analysis. DBH, V, and AGB were modeled as linear function of each of the independent variables, and all possible linear combinations thereof. Goodness of fit of every model was then evaluated using R2 statistic. Comparison between selected models showed that the variability of all dependent variables are explained best by models which include both crown diameter and tree height as independent variables with coefficients of determination of 0.83, 0.89, 0.82 for DBH, V, and AGB, respectively. Consequently, these models may be recommended as the most suited for DBH, V and AGB estimation of black pine trees grown in pure Sub-Mediterranean forest stands using high-resolution aerial images or high-density airborne laser scanning data. This assumption should be further validated by conducting remote sensing inventory and comparing the obtained results with field measurement results.

  2. Influence of stand density and soil treatment on the Spanish Black Pine (Pinus nigra Arn. ssp. Salzmannii) regeneration in Spain

    Energy Technology Data Exchange (ETDEWEB)

    Cerro Barja, A. del; Lucas-Borja, M. E.; Martinez Garcia, E.; Lopez Serrano, F. R.; Andres Abellan, M.; Garcia Morote, F. A.; Navarro Lopez, R.

    2009-07-01

    Satisfactory results relating to the natural regeneration of the Spanish black pine (Pinus nigra Arn ssp. salzmannii) is generally difficult to achieve. The natural regeneration of this pine was studied comparing two types of soil treatment and various over story densities in six experimental forests. These studies were conducted from 1999 to 2002 and seed rain and germination, as well as seedling survival were observed in a number of specific plots: Brushing, scalping and control plots. In addition various over story densities were used (measured as base area m2/ha). Soil and air temperature together with soil moisture were continuously recorded throughout this summer period. The results showed that seed germination was higher in plots using the scalping technique, as opposed to the brushed or controlled plots. The best seedling survival percentage was found in scalped plots together with a larger basal area. It was also found that seedling survival was lower during the first year than during the second one. The results have practical implications for management of Spanish black pine forests as well as valuable information which could improve the conditions for regeneration. (Author) 82 refs.

  3. Stoichiometric silicon oxynitride thin films reactively sputtered in Ar/N2O plasmas by HiPIMS

    Science.gov (United States)

    Hänninen, Tuomas; Schmidt, Susann; Wissting, Jonas; Jensen, Jens; Hultman, Lars; Högberg, Hans

    2016-04-01

    Silicon oxynitride (SiO x N y , x=0.2-1.3, y=0.2 -0.7) thin films were synthesized by reactive high power impulse magnetron sputtering from a pure silicon target in Ar/N2O atmospheres. It was found that the composition of the material can be controlled by the reactive gas flow and the average target power. X-ray photoelectron spectroscopy (XPS) shows that high average powers result in more silicon-rich films, while lower target powers yield silicon-oxide-like material due to more pronounced target poisoning. The amount of nitrogen in the films can be controlled by the percentage of nitrous oxide in the working gas. The nitrogen content remains at a constant level while the target is operated in the transition region between metallic and poisoned target surface conditions. The extent of target poisoning is gauged by the changes in peak target current under the different deposition conditions. XPS also shows that varying concentrations and ratios of oxygen and nitrogen in the films result in film chemical bonding structures ranging from silicon-rich to stoichiometric silicon oxynitrides having no observable Si-Si bond contributions. Spectroscopic ellipsometry shows that the film optical properties depend on the amount and ratio of oxygen and nitrogen in the compound, with film refractive indices measured at 633 nm ranging between those of SiO2 and Si3N4.

  4. Expresión heteróloga de ARN mensajeros de Leishmania en ovocitos de anfibios

    Directory of Open Access Journals (Sweden)

    Arroyo Olarte Rubén Darío

    2006-06-01

    Full Text Available La técnica de expresión heteróloga en ovocitos de Xenopus laevis ha sido ampliamente utilizada para la caracterización funcional de canales iónicos. En este estudio se reporta el uso del modelo nativo de ovocitos de Bufo marinus para la expresión heteróloga de ARN poliadenilado (ARNm poli(A+ de Leishmania amazonensis y la posterior identificación de canales iónicos mediante registros electrofisiológicos utilizando la técnica de voltaje controlado (voltage-clamp. Se logró realizar la maduración, extracción y cultivo de ovocitos de B. marinus bajo condiciones similares a las estandarizadas para X. laevis. El potencial de reposo promedio así como las corrientes endógenas mostraron ser definidas por canales de cloruro dependientes de calcio y rectificadores de salida, de manera similar a lo reportado en X. laevis. La inyección de ARNm poli(A+ de L. amazonensis generó la expresión de corrientes de cloruro de  amplitud, cinética y características farmacológicas diferentes a las corrientes endógenas, reportadas en estudios previos con X. laevis como posible resultado de la expresión heteróloga de canales iónicos de L. amazonensis.

  5. Electron energy distributions and electron impact source functions in Ar/N2 inductively coupled plasmas using pulsed power

    International Nuclear Information System (INIS)

    In plasma materials processing, such as plasma etching, control of the time-averaged electron energy distributions (EEDs) in the plasma allows for control of the time-averaged electron impact source functions of reactive species in the plasma and their fluxes to surfaces. One potential method for refining the control of EEDs is through the use of pulsed power. Inductively coupled plasmas (ICPs) are attractive for using pulsed power in this manner because the EEDs are dominantly controlled by the ICP power as opposed to the bias power applied to the substrate. In this paper, we discuss results from a computational investigation of EEDs and electron impact source functions in low pressure (5–50 mTorr) ICPs sustained in Ar/N2 for various duty cycles. We find there is an ability to control EEDs, and thus source functions, by pulsing the ICP power, with the greatest variability of the EEDs located within the skin depth of the electromagnetic field. The transit time of hot electrons produced in the skin depth at the onset of pulse power produces a delay in the response of the EEDs as a function of distance from the coils. The choice of ICP pressure has a large impact on the dynamics of the EEDs, whereas duty cycle has a small influence on time-averaged EEDs and source functions

  6. Isolation and molecular characterization of a distinct begomovirus and its associated betasatellite infecting Hedyotis uncinella (Hook. et Arn.) in Vietnam.

    Science.gov (United States)

    Du, Zhenguo; Chen, Meixiang; Wang, Zhen; Liu, Yong; Zhang, Songbai; He, Zifu

    2014-06-01

    A begomovirus isolate VN1 associated with symptomatic Hedyotis uncinella Hook. et Arn. from Vietnam was characterized. The virus, which we provisionally name H. uncinella yellow mosaic virus (HUYMV), has a monopartite genome of 2,749 nucleotides (nts). Pairwise comparisons of DNA-A sequences showed that HUYMV had a maximum nt sequence identity with Soybean crinkle leaf virus (SbLCV) and Premna leaf curl virus (PLCuV) at 82.1 and 81.9 %, respectively, which are less than the 89 % identity in the complete genome, which has been used as the threshold value for demarcation of species in the genus Begomovirus, the family Geminiviridae. One recombination event was detected for HUYMV, which involves an unknown begomovirus as the major parent and Tomato leaf curl Philippines virus (ToLCPV) as the minor parent, with nt 2163 and nt 2452 as the beginning and ending breakpoints, respectively. A betasatellite was found to be associated with HUYMV. The betasatellite showed the highest nt sequence identity (70 %) with Tomato leaf curl Philippine betasatellite--[Philippines:Laguna2:2006]. The name H. uncinella yellow mosaic betasatellite [Vietnam: Binh Dinh: 2013] was proposed for the betasatellite. PMID:24510306

  7. Analysis of genetic diversity and population structure in Argentine and Bolivian Creole cattle using five loci related to milk production

    Directory of Open Access Journals (Sweden)

    Lirón J.P.

    2002-01-01

    Full Text Available Data from five protein-coding loci related to dairy production were used to study the genetic diversity and population structure of Argentine and Bolivian Creole cattle breeds. Genomic DNA was extracted from blood samples of six Creole cattle breeds: Argentine (n = 230, Patagonian (n = 25; "Saavedreño" (n = 140, "Chaqueño Boliviano" (n = 30, "Yacumeño" (n = 27, and "Chusco" (n = 11. kappa-casein, beta-lactoglobulin, growth hormone and prolactin were measured by PCR-RFLP, while alphaS1-casein was typed by PCR-ASO. The results are discussed, focusing on: historical origin, recent differentiation and selection events, Zebu gene introgression, and population structure. This work shows that: (i For the studied genes, the observed gene frequency profiles of Argentine and Bolivian Creole cattle breeds were close to the data reported for Iberian breeds and for other South-American Creole cattle breeds which are historically related; (ii although Zebu gene introgression has been reported at the studied loci, these breeds seem to be far from the Zebu gene frequency profiles; and (iii the Argentine and Bolivian Creole cattle showed significant levels of subdivision, but each population has maintained its degree of genetic variability.

  8. The agreement between the Argentine Republic and Australia on the cooperation for the peaceful uses of nuclear energy and its fitting to the Argentine Constitution

    International Nuclear Information System (INIS)

    To analyze the legal aspects of the cooperation agreement between Australia and Argentina signed in Camberra on August 8, 2001, the authors elaborate upon the following points: 1. The interpretation of the constitutional texts. Its need; 2. Facts: the development of nuclear energy in Argentina. The contract INVAP-ANSTO. The cooperation agreement Argentina-Australia; 3. The great publicity campaign. The appeal to fear; 4. The difference with the case of power reactors. Distinction between power and research reactors; 5. The difference with the Chernobyl case; 6. Shipment safety; 7. Other clarifications; 8. Factual and juridical distinction between spent fuel and radioactive waste concepts; 9. The regulatory framework of the difference; 10. The essence of the adjective 'Immediate'. Its juridical meaning; 11. The concept of 'entry'. The need to overcome an intentional literalness; 12. The harmonious interpretation of the constitution; 13. The engagement with the future generations; 14. The adaptation to the global trends. The Kyoto protocol; 15. The bases of the constitutional doctrine. They conclude that nothing in the agreement is contrary to the Argentine constitution

  9. Structure and Stability of Ni+Nen(n=1-7) and Ni+Arn(n=1-6) Clusters%Ni+Nen(n=1-7)和Ni+Arn(n=1-6)团簇的结构与稳定性

    Institute of Scientific and Technical Information of China (English)

    汪飞; 张培; 张(马风); 张先燚; 崔执凤

    2008-01-01

    用密度泛函理论(DFT)的杂化密度泛函B3LYP方法在6-311+G(d)基组水平上对Ni+Nen(n=1-7),Ni+Arn(n=1-6)团簇的各种可能构型进行了几何优化,得到了团簇的最稳定结构,并对最稳定构型的电子结构、电荷分布进行了理论分析.结果表明:当团簇离子n≤4时为平面构型,n>4时为立体构型.同时,能量分析和自然键轨道(NBO)分析表明Ni+Nen团簇的稳定性不如Ni+Arn.

  10. EFFICIENT MICROPROPAGATION FROM COTYLEDONARY NODE CULTURES OF COMMIPHORA WIGHTII (ARN. BHANDARI, AN ENDANGERED MEDICINALLY IMPORTANT DESERT PLANT

    Directory of Open Access Journals (Sweden)

    TARUN KANT

    2010-12-01

    Full Text Available Commiphora wightii (Arn. Bhandari, is a medicinal important desert species of the family Burseraceae. It is a well known for its valuable active principle found in its oleo-gum-resin (guggulsterone E and Z, which are used in drugs preparation for lowering the cholesterol level in human body. Due to its overexploitation, poor natural regeneration this valuable plant is on the verge of extinction and thus a IUCN Red listed species. In the present study we report development of an efficient micropropagation protocol from cotyledonary node of Commiphora wightii. Cotyledonary nodes were used as an explants and multiple microshoots were obtained on Murashige & Skoog (MS medium supplemented with 2.68 µM a-Naphthalene acetic acid (NAA and 4.44 µM 6-Benzylamino purine (BAP and on 2.68 µM NAA; 4.44 µM BAP with additives (glutamine 684.2 µM; thiamine 29.65 µM; activated charcoal 0.3% and various other hormonal combinations. Elongation of microshoot was significantly observed on the 2.46 µM Indole-3-butyric acid (IBA and 2.22 µM BAP supplemented MS medium. Efficient rooting was obtained on pretreated microshoot (4.92 µM IBA for 24 hours and followed by transfer to White’s medium without Plant Growth Regulators (PGR and high concentration of activated charcoal (AC. Rooted micro-shoots were transferred to vermiculite and wetted with Hoagland’s solution for primary hardening for 4-5 weeks and then finally transferred to plastic cups containing vermiculite, placed in mist chamber. Plantlets were transferred to soil: FYM 1:1 containing poly-bags, then to green shade house for complete acclimatization and finally transplanted to the experimental field.

  11. Soil properties and root biomass responses to prescribed burning in young Corsican pine (Pinus nigra Arn.) stands.

    Science.gov (United States)

    Tufekcioglu, Aydin; Kucuk, Mehmet; Saglam, Bulent; Bilgili, Ertugrul; Altun, Lokman

    2010-05-01

    Fire is an important tool in the management of forest ecosystems. Although both prescribed and wildland fires are common in Turkey, few studies have addressed the influence of such disturbances on soil properties and root biomass dynamics. In this study, soil properties and root biomass responses to prescribed fire were investigated in 25-year-old corsican pine (Pinus nigra Arn.) stands in Kastamonu, Turkey. The stands were established by planting and were subjected to prescribed burning in July 2003. Soil respiration rates were determined every two months using soda-lime method over a two-year period. Fine (0-2 mm diameter) and small root (2-5 mm diameter) biomass were sampled approximately bimonthly using sequential coring method. Mean daily soil respiration ranged from 0.65 to 2.19 g Cm(-2) d(-1) among all sites. Soil respiration rates were significantly higher in burned sites than in controls. Soil respiration rates were correlated significantly with soil moisture and soil temperature. Fine root biomass was significantly lower in burned sites than in control sites. Mean fine root biomass values were 4940 kg ha(-1) for burned and 5450 kg ha(-1) for control sites. Soil pH was significantly higher in burned sites than in control sites in 15-35 cm soil depth. Soil organic matter content did not differ significantly between control and burned sites. Our results indicate that, depending on site conditions, fire could be used successfully as a tool in the management of forest stands in the study area. PMID:21047013

  12. Investigation of Paenibacillus alvei ARN63 ability for biodemulsifier production: medium optimization to break heavy crude oil emulsion.

    Science.gov (United States)

    Amirabadi, S Sh; Jahanmiri, A; Rahimpour, M R; Nia, B Rafie; Darvishi, P; Niazi, A

    2013-09-01

    The demulsifying performance of Paenibacillus alvei ARN63 (P. alvei), as a biodemulsifier-producing bacterium, for breaking water-in-heavy crude oil emulsion has been investigated. The produced lipopeptide biodemulsifier showed the potential to be used in the petroleum industry as an environmentally friendly and non-toxic material. To optimize the biodemulsifier production, the impacts of parameters such as temperature, pH, carbon source and carbon concentration at a constant agitation speed of 180 rpm and with ammonium sulfate as the sole nitrogen source (1.0 g/l) were studied in detail. Several normal paraffin compounds, vegetable oils and motor oil revealed the ability to be used as the carbon source for synthesis of biodemulsifier. The best biodemulsifier production was obtained employing motor oil as the carbon source with a concentration of 42.5 g/l at 37°C and pH 7.0 after 72 h of incubation. Under these conditions, the surface tension of the medium reduced from 58 mN/m to 24.7 mN/m and the biodemulsifier yield reached a value of 2.1 g/l. The demulsification ratio approached 77% and the produced biodemulsifier by P. alvei strain effectively broke water-in-heavy crude oil emulsion. According to biodemulsifier production and growth time course profiles, the biosynthesis was growth associated. Besides, the produced biodemulsifier had good stability during exposure to salinities up to 20%, temperatures up to 80°C and a wide pH range of 2-12. PMID:23660310

  13. Diet and genotype effects on the quality index of beef produced in the Argentine Pampeana region.

    Science.gov (United States)

    Latimori, N J; Kloster, A M; García, P T; Carduza, F J; Grigioni, G; Pensel, N A

    2008-07-01

    Steers of varying genotypes (Aberdeen Angus, Charolais x AA and Argentine Holstein) in four feeding systems were evaluated. Feeding systems were: S1=a diet based on pastures only; S2=a similar forage base as S1 plus a daily supplementation with cracked corn, at 0.7% of l.w./head/day; S3=a similar forage base as S1 plus a daily supplementation with cracked corn, at 1.0% of l.w./head/day; and S4=a regular feedlot diet. Tenderness and marbling were not affected by the feeding system. Feedlot meat showed an n-6/n-3 ratio significantly higher than meat produced with the diets based on pastures (S1=2.1; S2=3.1; S3=4.5; S4=14.2) (Pmeat with better nutritional characteristics than other productive alternatives, without significant effects of the biotypes. PMID:22062907

  14. Organochlorinated pesticides in the Argentine Antarctic sector and Atlantic coastline waters.

    Science.gov (United States)

    García Fernández, J C; Casabella, A N; Marzi, A A; Astolfi, E; Roses, O; Donnewald, H; Villamil, E

    1979-01-01

    The presence of organochlorinated pesticides in water samples drawn in the Argentine Antarctic Sector and Atlantic coastline has been proved. In general, these samples showed quantities that varied between a few hundredths of a ppmm to slightly more than 1 ppmm, although in some cases and for certain pesticides, depending on the locations, the levels found were definitely higher. With the exception of Dieldrin, which appeared in only one sample/in what would seem to be its course few hundredths of a ppm, to slightly more than 1 ppmm, although in some cases and for certain pesticides found were the same as those reported in previous investigations. The isolated cases of high pesticide contents in water samples drawn at wharves and of snow in the vicinity of Almirante Brown Base show up clearly the influence of human activity on the contamination of the environment.

  15. Use of remote sensing and GIS to identify Flamingo habitat in the Argentine Altiplano

    Science.gov (United States)

    Boyle, Susan C.; Hoffer, Roger M.; Boyle, Terence P.; Bucher, Enrique H.

    1992-01-01

    The Argentine altiplano is a remote area which has never been adequately mapped. It is an arid region with harsh climate, little vegetation, sparse population, and an average elevation of over 3,500 feet. Little is known about the large populations of three species of flamingos which nest and feed in the altiplano lakes. In a study funded by the National Geographic Society satellite data (Landsat MSS and TM data) were used to map the location of major water bodies and to analyze the spectral characteristics of the aquatic ecosystems in the altiplano. A comparison of the two images revealed dramatic changes in the size, depth, and spectral reflectance of the lakes utilized by the flamingos.

  16. Basis for the implementation of digital signature in Argentine's health environment

    International Nuclear Information System (INIS)

    The growth of telemedical applications and electronic transactions in health environments is paced by the constant technology evolution. This implies a big cultural change in traditional medicine and in hospital information systems' users which arrival is delayed, basically, by the lack of solid laws and a well defined role-based infrastructure. The use of digital signature as a mean of identification, authentication, confidentiality and non-repudiation is the most suitable tool for assuring the electronic transactions and patient's data protection. The implementation of a Public Key Infrastructure (PKI) in health environment allows for authentication, encryption and use of digital signature for assuring confidentiality and control of the movement of sensitive information. This work defines the minimum technological, legal and procedural basis for a successful PKI implementation and establishes the roles for the different actors in the chain of confidence in the public health environment of Argentine

  17. Dynamics and genetic structure of Argentine ant supercolonies in their native range

    DEFF Research Database (Denmark)

    Vogel, Valérie; Pedersen, Jes S; d'Ettorre, Patrizia;

    2009-01-01

    analyses revealed the presence of 11 supercolonies (width 1 to 515 m) over a 3-km transect. As in the introduced range, there was always strong aggression between but never within supercolonies. The genetic data were in perfect agreement with the behavioral tests, all nests being assigned to identical...... units. Genetic and chemical distances between supercolonies were positively correlated, but there were no other significant associations between geographic, genetic, chemical, and behavioral distances. A comparison of supercolonies sampled in 1999 and 2005 revealed a very high turnover, with about one......Some introduced ant populations have an extraordinary social organization, called unicoloniality, whereby individuals mix freely within large supercolonies. We investigated whether this mode of social organization also exists in native populations of the Argentine ant Linepithema humile. Behavioral...

  18. RECENT TRANSFORMATIONS IN THE ARGENTINE OIL INDUSTRY: THE YPF CASE, 1989-2012

    Directory of Open Access Journals (Sweden)

    Esteban Serrani

    2013-06-01

    Full Text Available The objective of the paper is to analyze the path of the state oil company YPF, from privatization to its expropriation (1989-2012. In this process, it has a special emphasis on the identification and analysis of national peculiarities that explain why in the ‘90s YPF, one of the nation’s premier companies in history, was fully privatized (counter to the regional experience in Mexico, Venezuela and Brazil; and how, just twenty years later, the same company was again in state control, with an expropriation which was widely popular and parliamentary support. It also reviews the main consequences of deregulation and the opening in the Argentine oil sector, especially in the performance of --- since acquired all shares of YPF in 1999, to explain this path.

  19. Copi et Puig, ovnis du théâtre argentin ?

    OpenAIRE

    Souquet, Lionel

    2015-01-01

    C’est en 1968 que Copi (Raúl Damonte Botana, 1939-1987) publie sa première pièce, La journée d’une rêveuse puis, un an plus tard, la très iconoclaste Eva Peron. Par son milieu familial, Copi a baigné dès l’enfance dans la vie théâtrale internationale et a été fortement influencé par sa grand-mère, la dramaturge anarcho-féministe Salvadora Medina Onrubia de Botana. Mais, vivant en exil avec sa famille, Copi est coupé de la réalité de la scène argentine et il écrit d’ailleurs ses premières pièc...

  20. Loss of Wolbachia infection during colonisation in the invasive Argentine ant Linepithema humile

    DEFF Research Database (Denmark)

    Reuter, M.; Pedersen, Jes Søe; Keller, L.

    2005-01-01

    the phylogenies of Wolbachia and its arthropod hosts indicate that infection is frequently lost, but the causes of symbiont extinction have so far remained elusive. Here, we report data showing that colonisation of new habitats is a possible mechanism leading to the loss of infection. The presence and prevalence...... of Wolbachia were studied in three native and eight introduced populations of the Argentine ant Linepithema humile. The screening shows that the symbiont is common in the three native L. humile populations analysed. In contrast, Wolbachia was detected in only one of the introduced populations. The loss...... of infection associated with colonisation of new habitats may result from drift (founder effect) or altered selection pressures in the new habitat. Furthermore, a molecular phylogeny based on sequences of the Wolbachia wsp gene indicates that L. humile has been infected by a single strain. Horizontal...

  1. Proceedings of the eighth scientific meeting; second latin american meeting; first engineering and argentine nuclear industry exposition at Buenos Aires, 5-10 november 1979

    International Nuclear Information System (INIS)

    Compilation of 59 papers of different authors, most of whom are personnel from the Argentine National Atomic Energy Commission (CNEA), the others belonging to the firms involved in the development of the Argentine Nuclear Programme. The papers are arranged in 7 sections comprising the following groups of subjects; experimental and power reactors; fuel elements' fabrication study; prospection, extraction, production and study of nuclear materials; radiological and nuclear safety; instrumentation and control; quality assurance, and technological applications. (R.J.S.)

  2. Marine fronts are important fishing areas for demersal species at the Argentine Sea (Southwest Atlantic Ocean)

    Science.gov (United States)

    Alemany, Daniela; Acha, Eduardo M.; Iribarne, Oscar O.

    2014-03-01

    The high primary and secondary production associated with frontal systems attract a diversity of organisms due to high prey availability; this is why a strong relationship between fronts and pelagic fisheries has been shown worldwide. In the Argentine Sea, demersal resources are the most important, both in economical and in ecological sense; so we hypothesize that fronts are also preferred fishing areas for demersal resources. We evaluated the relationship between spatial distribution of fishing effort and oceanographic fronts, analyzing three of the most important frontal systems located in the Argentine Sea: the shelf-break front, the southern Patagonia front and the mid-shelf front. Individual vessel satellite monitoring system data (VMS; grouped by fleet type: ice-trawlers, freezer-trawlers and jigging fleet) were studied and fishing events were identified. Fishing events per area were used as a proxy of fishing effort and its spatial distribution by fleet type was visualized and analyzed with Geographic Information Systems. Oceanographic fronts were defined using polygons based on satellite chlorophyll amplitude values, and the percentage of fishing events within each polygon was calculated. Results showed a positive association between fronts and fishing activities of the different fleets, which suggests the aggregation of target species in these zones. The coupling of the freezer-trawler and jigging fleets (that operate on lower trophic level species; Macruronus magellanicus and Illex argentinus respectively) with fronts was higher than the ice-trawler fleet, targeting species of higher trophic level (Merluccius hubbsi). Marine fronts represent important fishing areas, even for demersal resources, as the distribution of fishing fleets and fishing effort are positively associated with frontal zones.

  3. Floral visitation by the Argentine ant reduces bee visitation and plant seed set.

    Science.gov (United States)

    Hanna, Cause; Naughton, Ida; Boser, Christina; Alarcón, Ruben; Hung, Keng-Lou James; Holway, David

    2015-01-01

    Ants often visit flowers, but have only seldom been documented to provide effective pollination services. Floral visitation by ants can also compromise plant reproduction in situations where ants interfere with more effective pollinators. Introduced ants may be especially likely to reduce plant reproductive success through floral visitation, but existing experimental studies have found little support for this hypothesis. Here, we combine experimental and observational approaches to examine the importance of floral visitation by the nonnative Argentine ant (Linepithema humile) on plant species native to Santa Cruz Island, California, USA. First, we determine how L. humile affects floral visitor diversity, bee visitation rates, and levels of pollen limitation for the common, focal plant species island morning glory (Calystegia macrostegia ssp. macrostegia). Second, we assess the broader ecological consequences of floral visitation by L. humile by comparing floral visitation networks between invaded and uninvaded sites. The Argentine ant and native ants both visited island morning glory flowers, but L. humile was much more likely to behave aggressively towards other floral visitors and to be the sole floral occupant. The presence of L. humile in morning glory flowers reduced floral visitor diversity, decreased rates of bee visitation, and increased levels of pollen limitation. Network comparisons between invaded and uninvaded. sites revealed differences in both network structure and species-level attributes. In. invaded sites, floral visitors were observed on fewer plant species, ants had a higher per-plant interaction strength relative to that of other visitors, and interaction strengths between bees and plants were weaker. These results illustrate that introduced ants can negatively affect plant reproduction and potentially disrupt pollination services at an ecosystem scale. PMID:26236907

  4. Therapeutic Argentine tango dancing for people living with Parkinson’s disease: a feasibility study

    Directory of Open Access Journals (Sweden)

    Laura M Blandy

    2015-05-01

    Full Text Available Background: Individuals living with Parkinson’s disease (PD can experience a range of movement disorders. Therapeutic dance is enjoyable and thought to improve mobility, balance and well being in some people with PD. The primary objective of this study was to evaluate the feasibility and safety of a 4 week Argentine tango dance program for people with PD. Methods: Six community dwelling individuals with mild-moderate PD were recruited from Parkinson’s support groups, movement disorder clinics and the Parkinson’s disease Association in Australia. To minimise falls risk, participants were required to be less than 75 years of age and physically independent (Hoehn and Yahr stages I-III. They were also required to speak English. Participants attended a 1 hour dance class at a dance studio twice per week for 4 weeks. A professional dance instructor led and choreographed the classes. Physiotherapists were present to assist participants during the class and served as dance partners as necessary. The primary outcome was feasibility which was determined by measures of recruitment, adherence, attrition, safety (falls, near misses and adverse events and resource requirements. Secondary measures included the Beck Depression Inventory and the Euroqol-5D, administered at baseline and post intervention. Therapy outcomes pre and post-intervention were analysed descriptively as medians and inter-quartile ranges and using Wilcoxon matched pair signed-rank tests.Results: The Argentine tango dance intervention was shown to be safe, with no adverse events. Adherence to the dance program was 89%. Depression scores improved after intervention (p=0.04. Some challenges were associated with the need to quickly recruitment participants and supplying physiotherapists to act as dance partners. Conclusion: The program was shown to be feasible and safe for people with mild to moderately severe PD.

  5. The effect of airborne particles and weather conditions on pediatric respiratory infections in Cordoba, Argentine

    International Nuclear Information System (INIS)

    We studied the effect of estimated PM10 on respiratory infections in children from Cordoba, Argentine as well as the influence of weather factors, socio-economic conditions and education. We analyzed upper and lower respiratory infections and applied a time-series analysis with a quasi-Poisson distribution link function. To control for seasonally varying factors we fitted cubic smoothing splines of date. We also examined community-specific parameters and differences in susceptibility by sex. We found a significant association between particles and respiratory infections. This relationship was affected by mean temperature, atmospheric pressure and wind speed. These effects were stronger in fall, winter and spring for upper respiratory infections while for lower respiratory infections the association was significant only during spring. Low socio-economic conditions and low education levels increased the risk of respiratory infections. These findings add useful information to understand the influence of airborne particles on children health in developing countries. - Highlights: ► Few information is available on children respiratory health from developing countries. ► We modeled the association between PM10 and children's respiratory infections. ► We checked the influence of weather factors, socio-economic conditions, education and sex. ► Temperature, pressure and wind speed modified the effect of particles. ► Low socio-economic conditions and low education levels increased the risk of infections. - The concentration of airborne particles as well as low socio-economic conditions and low education levels are significant risk factors for upper and lower respiratory infections in children from Cordoba, Argentine.

  6. Consequences of the Argentine ant, Linepithema humile (Mayr), invasion on pollination of Euphorbia characias (L.) (Euphorbiaceae)

    Science.gov (United States)

    Blancafort, Xavier; Gómez, Crisanto

    2005-07-01

    We have studied the influence of the Argentine ant, Linepithema humile, on the pollination of Euphorbia characias, a deciduous insect-pollinated shrub. The observations were made in two adjacent areas (invaded and non-invaded by L. humile) in a Mediterranean cork-oak forest. In the invaded area, L. humile has replaced most of the native ants that climb up this plant's inflorescences. Five native ant species were detected in the non-invaded areas and only one in the invaded area. The number of visitors to infested inflorescences (1.54 ± 1.86 visitors/10 min observation) was lower than in non-infested inflorescences in the invaded area (3.74 ± 4.19 visitors/10'), and in the non-invaded areas (4.16 ± 5.00 visits/10'). For several species of flower-visiting insects, no differences were detected between the time spent in the flowers and the number of flowers visited in the two areas, except for Eristalis tenax, a dipteran which visited more flowers (15.2 ± 11.1 flowers visited/10') and spent more time (9.4 ± 5.8 sec) in the non-invaded area than in the invaded area (7.8 ± 8.2 flowers visited/10' and 5.3 ± 2.1 sec, respectively). The relative representation of insect orders in the two areas was not different. A significant reduction in fruit-set and seed-set was detected in the invaded area. These results suggest that the Argentine ant may greatly affect the reproductive success of components of the Mediterranean flora.

  7. Can the Argentine ant ( Linepithema humile Mayr) replace native ants in myrmecochory?

    Science.gov (United States)

    Gómez, Crisanto; Oliveras, Jordi

    2003-04-01

    We analyse the influence of the Argentine ant ( Linepithema humile Mayr) on the seed dispersal process of the myrmecochorous plants Euphorbia characias, E. biumbellata, Genista linifolia, G. triflora, G. monspessulana and Sarothamnus arboreus. The observations were made in two study plots of Mediterranean cork-oak secondary forest (invaded and non-invaded by L. humile). The presence of L. humile implies the displacement of all native ant species that disperse seeds. Seed transports in the non-invaded zone were carried out by eight ant species. In the invaded zone, L. humile workers removed and transported seeds to the nest. In vertebrate exclusion trials, we observed the same level of seed removal in the invaded and non-invaded zones. Two findings could explain this result. Although mean time to seed localization was higher for native ants (431.7 s) than that for L. humile (150.5 s), the mean proportion of seeds transported after being detected was higher (50.1%) in non-invaded than in invaded (16.8%) zones. The proportion of seeds removed and transported into an ant nest after an ant-seed interaction had dramatically reduced from non-invaded (41.9%) to invaded (7.4%) zones. The levels of seed dispersal by ants found prior to invasion are unlikely to be maintained in invaded zones. However, total replacement of seed dispersal function is possible if contact iteration finally offers similar levels or quantities of seeds reaching the nests. The results obtained confirm that the Argentine ant invasion may affect myrmecochory dramatically in the Mediterranean biome.

  8. Utjecaj različitih tipova kontejnera i doza sporotopivog gnojiva na rast i fiziološke parametre sadnica crnog bora (Pinus nigra Arn.)

    OpenAIRE

    Seletković, Ivan; Potočić, Nenad; Topić, Vlado; Butorac, Lukrecija; Jelić, Goran; Jazbec, Anamarija

    2011-01-01

    U radu su prikazani rezultati pokusa u kojemu se ispitivao utjecaj različitih tipova kontejnera i doza sporotopivog gnojiva (Osmocote Exact Standard 5–6 M) na rast i fiziološke parametre sadnica crnog bora (Pinus nigraArn.). Pokus je postavljen u proljeće 2007. godine u rasadniku Omiš, Hrvatske šume d.o.o. Zagreb, randomizirani blok u četiri ponavljanja. Tretmani su se razlikovali u primjeni različitih kontejnera (HIKO V–150, HIKO V–265, QPD 12T/18) i doza gnojiva (2, 4 i 6 g/l supstrata)....

  9. 三位机械浆专家将分享Arne Asplund机械浆生产技术奖

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    由于在机械浆质量控制、能耗以及磨浆强度方面做出的杰出贡献,Keith B.Miles、Marc J.Sabourin及William C.Strand三人共同获得2011年Arne Asplund机械浆生产技术奖,其研发成果大大加深了人们对强化热磨机械浆生产效率的理解。该奖将于2011年6月在西安举行的国际机械浆大会上颁发。

  10. 丹麦学派的设计全才——安恩.雅各布森%A Versatile Designer of Danmark School——Arne Jacobsen

    Institute of Scientific and Technical Information of China (English)

    彭亮

    2002-01-01

    @@ 安恩.雅各布森[Arne Jacobsen 1902~1971],20世纪丹麦著名建筑师,工业产品与室内家具设计大师.雅各布森在上大学前曾受过泥瓦匠的训练,引发了他对建筑的兴趣,后考入哥本哈根皇家艺术学院建筑系并于1927年毕业.

  11. Efecto de variables climáticas y litológicas sobre el crecimiento en altura dominante en masas de Pinus nigra Arn

    OpenAIRE

    Vera Vélez, Roy Roger

    2013-01-01

    La variabilidad en el crecimiento en altura dominante puede ser explicada en parte tanto por las condiciones edáficas como por la variabilidad del clima. A partir de datos de 46 parcelas permanentes instaladas en masas de Pinus nigra Arn en Sierras de Segura-Cazorla, Serranía de Cuenca, Els Ports y Sierra de Gúdar-Javalambre, se ha desarrollado un modelo dinámico de crecimiento en altura dominante mediante la aproximación de ecuaciones en diferencias algebraicas generalizadas (GADA) con inclu...

  12. Application of various statistical methods to analyze genetic diversity of Austrian (Pinus nigra Arn. and Scots pine (Pinus sylvestris L. based on protein markers

    Directory of Open Access Journals (Sweden)

    Lučić Aleksandar

    2011-01-01

    Full Text Available This paper presents the results of studies on protein polymorphism in seeds of Scots pine (Pinus sylvestris L. and Austrian pine (Pinus nigra Arn. as the most important economic species of the genus Pinus in Serbia. Polymorphism of protein markers was determined in selected genotypes originating from seven populations (Scots pine and six populations (Austrian pine. Analysis of protein markers was performed using two statistical methods, NTSYS and correspondence analysis. Both methods give the same arrangement of the analyzed populations, whereby, because of a different view of genetic distances, they can and should be combined, enabling easier and more precise understanding of mutual relationships of the observation units.

  13. Clusters containing open-shell molecules. III. Quantum five-dimensional/two-surface bound-state calculations on ArnOH van der Waals clusters (X2Π, n=4 to 12).

    OpenAIRE

    Xu, M Z; Bačić, Z.; Hutson, J. M.

    2002-01-01

    This paper presents a theoretical study of the bound states of the open-shell OH radical in its ground electronic state(X2Π) interacting with n Ar atoms, for n from 4 to 12. After freezing the geometry of the Arn cage or subunit at the equilibrium structure (preceding paper), we carry out nonadiabatic five-dimensional quantum dynamics calculations on two coupled potential energy surfaces, using an extension of the method previously applied to closed-shell ArnHFclusters [J. Chem. Phys. 103, 18...

  14. The Identities of Dendrocalamus hamiltonii Nees et Arn. ex Munro and Dendrocalamus parishii Munro(Bambusoideae) from China%国产牡竹属野龙竹和版纳甜龙竹的订正

    Institute of Scientific and Technical Information of China (English)

    郭永兵; 夏念和

    2010-01-01

    通过对模式标本和原始文献的研究,确认、、、、、等重要专著中广泛使用的版纳甜龙竹学名Dendrocdanus hamittonii Nees et Arn.为错误鉴定,其正确学名为D.parishii Munro;野龙竹(D.semiscandens Hsueh et D.Z.Li)为D.ham iltonii Nees et Arn.的异名.

  15. Mémoire d’un saccage. Argentine, le hold-up du siècle

    Directory of Open Access Journals (Sweden)

    Julien Welter

    2005-02-01

    Full Text Available Memoria del saqueo – la oscura trama de la corrupcion Documentaire argentin de Fernando SOLANAS, 2004, 120mn. Sortie de la dictature, l’Argentine ne pensait jamais connaître une nouvelle fois le cauchemar d’un désastre social. Ce pays, naguère le plus riche d’Amérique du Sud, a en effet tout tenté pour s’éloigner des régimes autoritaires conduisant à l’asservissement du peuple. Tout tenté, même l’extrême opposé, l’ultralibéralisme. En revenant sur ces années d’une politique en apparence ouver...

  16. Nestor Kirchner (2003-2007) : rupture ou continuite du peronisme ? Les mutations du populisme en Argentine

    OpenAIRE

    Doz, Emilie

    2015-01-01

    Ce texte est un extrait du quatrième chapitre de la thèse « Néstor Kirchner (2003-2007) : Rupture ou continuité du péronisme. Les mutations du populisme en Argentine ». Le 25 mai 2003, le peuple argentin assistait à l’investiture présidentielle du candidat du Frente Para la Victoria, Néstor Kirchner. Suite à la défection de Carlos Menem pendant l’entre-deux tours, il est élu avec 22% des suffrages. Malgré cette faible légitimité, il réussit à insuffler un changement certain dans la politique ...

  17. Motives for inter-firm cooperation on R&D and innovation: empirical evidence from Argentine and Spain

    OpenAIRE

    Edwards-Schachter, Mónica; Anlló, Guillermo; Castro-Martínez, Elena; Sánchez-Barrioluengo, Mabel; Fernández de Lucio, Ignacio

    2012-01-01

    Motives and determinants supporting inter-firm technological cooperation have been extensively investigated in developed countries but scarcely addressed in developing countries. This paper addresses these issues, investigating empirically several factors influencing the likelihood to cooperate on R&D and innovation between Argentine and Spanish firms, their strategic motives and firms characteristics which influence cooperation. We draw upon data collected through a survey of 104 firms and c...

  18. Workers select mates for queens: a possible mechanism of gene flow restriction between supercolonies of the invasive Argentine ant

    Science.gov (United States)

    Sunamura, Eiriki; Hoshizaki, Sugihiko; Sakamoto, Hironori; Fujii, Takeshi; Nishisue, Koji; Suzuki, Shun; Terayama, Mamoru; Ishikawa, Yukio; Tatsuki, Sadahiro

    2011-05-01

    Some invasive ants form large networks of mutually non-aggressive nests, i.e., supercolonies. The Argentine ant Linepithema humile forms much larger supercolonies in introduced ranges than in its native range. In both cases, it has been shown that little gene flow occurs between supercolonies of this species, though the mechanism of gene flow restriction is unknown. In this species, queens do not undertake nuptial flight, and males have to travel to foreign nests and cope with workers before gaining access to alien queens. In this study, we hypothesized that male Argentine ants receive interference from workers of alien supercolonies. To test this hypothesis, we conducted behavioral and chemical experiments using ants from two supercolonies in Japan. Workers attacked males from alien supercolonies but not those from their own supercolonies. The level of aggression against alien males was similar to that against alien workers. The frequency of severe aggression against alien males increased as the number of recipient workers increased. Cuticular hydrocarbon profiles, which serve as cues for nestmate recognition, of workers and males from the same supercolony were very similar. Workers are likely to distinguish alien males from males of their own supercolony using the profiles. It is predicted that males are subject to considerable aggression from workers when they intrude into the nests of alien supercolonies. This may be a mechanism underlying the restricted gene flow between supercolonies of Argentine ants. The Argentine ant may possess a distinctive reproductive system, where workers participate in selecting mates for their queens. We argue that the aggression of workers against alien males is a novel form of reproductive interference.

  19. Communication of 31 March 2000 received from the Permanent Mission of the Argentine Republic to the International Atomic Energy Agency

    International Nuclear Information System (INIS)

    The document reproduces the text of a letter dated 31 March 2000 from the Resident Representative of the Argentine Republic, including as attachment the declaration of the Advisory and Political Harmonisation Forum of MERCOSUR (Argentina, Brazil, Paraguay, Uruguay), Bolivia and Chile, issued on 27 March 2000, with regard to the 30th Anniversary of the entry into force of the Treaty on the Non-Proliferation of Nuclear Weapons

  20. Moderls of Internationzation of Two Argentine Pharmaceutical Companies in Historical Perspective: The Cases of Bagó and Sidus

    OpenAIRE

    Campins, Mónica

    2015-01-01

    Internationalization is not a simple decision but rather a complex strategy that requires the presence of tangible and intangible resources that, in the case of a family firm, call for careful analysis. To understand this process, the present study reconstructs the historical trajectories of two important Argentine laboratories, Bagó and Sidus, in historical perspective, using the stage approach of the Uppsala school (U-model) and the perspective of resources and capacities (resource-based vi...

  1. Molina’s Touch and Dorda’s Music: The Schizophrenia of Gender in Post-dictatorial Argentine Fiction

    OpenAIRE

    Bhaumik, Munia

    2008-01-01

    This paper proposes to analyze the “woman question” in relation to tropes of schizophrenia in post-dictatorial queer Argentine fiction. Gilles Deleuze and Felix Guttari’s claim in Anti-Oedipus: Capitalism and Schizophrenia states: “schizoanalysis must devote itself with all its strength to the necessary destructions….. Destroying beliefs and representations, theatrical scenes. And when engaged in this task no activity will be too malevolent.” Similarly, Manuel Puig’s El Beso de la mujer ...

  2. Samosprávné podniky v Argentině jako sociální hnutí

    OpenAIRE

    Virtová, Tereza

    2011-01-01

    This thesis aims to elaborate a case study of self-managed factories, which has been emerging in Argentina after the economic crisis in 2001. Mainly the conflictive origin, organization, role of the state and the dynamics of the movement of self-managed factories is discussed. This paper is based on European tradition of social movements' analysis and seeks to characterize movement of Argentine self-managed factories as so called old or new social movement. This dividing line will ultimately ...

  3. Analysis for making a regulatory decision to equipment of industrial gammagraphy in Argentin

    International Nuclear Information System (INIS)

    Industrial gammagraphy is a practice widely used as a nondestructive testing technique in Argentina. Experience worldwide has shown the need for an improvement in the intrinsic safety of the equipment used in this lab. In response to this reason, the board of the Nuclear Regulatory Authority (ARN) has considered a proposal to withdraw service movement and much of the equipment inventory scan belonging to industrial facilities nationwide. The main objective of this paper is to present the results of the analysis performed to support the above proposal. The main elements of evaluation can be summarized as follows: I) the teams that do not conform to international recommendations regarding compliance with key safety requirements of international standards such as ISO 3999:2004 (E) Radiation protection - Industrial Apparatus for gamma radiography - Specifications for performance, design and tests ; II) the decision by some manufacturers to discontinue production of certain models of equipment and the provision of spare parts, and III) the validity of certificates bulk type B (U) for transport. In conclusion, it highlights the importance of a regulatory decision supplementary to the Standard AR 7.9.1 concerning the operation of scan equipment industry, based on current international recommendations and Argentina's commitment to good practice and safety culture which can lead to a positive impact on radiation safety in this art

  4. Accountability and non-proliferation nuclear regime: a review of the mutual surveillance Brazilian-Argentine model for nuclear safeguards

    International Nuclear Information System (INIS)

    The regimes of accountability, the organizations of global governance and institutional arrangements of global governance of nuclear non-proliferation and of Mutual Vigilance Brazilian-Argentine of Nuclear Safeguards are the subject of research. The starting point is the importance of the institutional model of global governance for the effective control of non-proliferation of nuclear weapons. In this context, the research investigates how to structure the current arrangements of the international nuclear non-proliferation and what is the performance of model Mutual Vigilance Brazilian-Argentine of Nuclear Safeguards in relation to accountability regimes of global governance. For that, was searched the current literature of three theoretical dimensions: accountability, global governance and global governance organizations. In relation to the research method was used the case study and the treatment technique of data the analysis of content. The results allowed: to establish an evaluation model based on accountability mechanisms; to assess how behaves the model Mutual Vigilance Brazilian-Argentine Nuclear Safeguards front of the proposed accountability regime; and to measure the degree to which regional arrangements that work with systems of global governance can strengthen these international systems. (author)

  5. Perpetuating Social Movements amid Declining Opportunity: The Survival Strategies of Two Argentine Piquetero Groups

    Directory of Open Access Journals (Sweden)

    Edward C. Epstein

    2009-04-01

    Full Text Available This article examines the recent behaviour in Argentina of two national protest groups of socalled ‘piqueteros’ or picketers (impoverished unemployed individuals who used the blockage of strategic roads and bridges to force government concessions that emerged politically in the buildup to the crisis of 2001-2002. Using theoretical concepts developed by McAdam, Tarrow, and Tilly in understanding social movements, the author analyses what he calls the ‘survival strategy’ adopted by their leaders as the political opportunities that produced their initial growth gave way to a more hostile environment with the normalization of Argentine politics under the Kirchner administration. While the two piquetero groups studied differ considerably in terms of their politics and ideology, both ended up depending on the same traditional tactic of utilizing important government contacts to obtain the resources necessary for organizational maintenance, despite their nominal identity as radical protesters against the present political system.Resumen: Perpetuando movimientos sociales y oportunidades decrecientes: las estrategias de sobrevivencia de dos grupos de piqueteros argentinesEste artículo examina el comportamiento reciente de dos grupos nacionales de protesta argentinos llamados ‘piqueteros’ (desempleados empobrecidos que usaron el bloqueo de calles y puentes estratégicos para forzar concesiones gubernamentales que aparecieron durante la crisis de 2001- 2002. Utilizando conceptos teóricos creados por McAdam, Tarrow, y Tilly en su discusión sobre los movimientos sociales, el autor analiza lo que describe como ‘estrategias de sobrevivencia’ adoptadas por sus dirigentes cuando las oportunidades que ocasionaron su crecimiento inicial cedieron ante un ambiente más hostil en el contexto de la normalización de la política argentina durante la administración de Kirchner. Aunque los dos grupos piqueteros estudiados se diferencian mucho en t

  6. An independent test of thermal subsidence and asthenosphere flow beneath the Argentine Basin

    Science.gov (United States)

    Hohertz, Warren L.; Carlson, Richard L.

    1998-09-01

    We have used primary precision depth recorder and single channel seismic data from three cruises of the R/V Conrad to test thermal subsidence and asthenosphere flow models for seafloor depth versus age in the Argentine Basin in the western South Atlantic. We found a region in the west central part of the basin where anomalously shallow depths, that can not be explained by any simple thermal or dynamic model, are associated with a local free-air gravity anomaly. Elsewhere, over ages ranging from 1 to 104 Ma, there is no evidence of the "flattening" of the depth/age trend that is characteristic of the plate cooling model for the thermal subsidence of the oceanic lithosphere. The halfspace thermal subsidence model accounts for nearly 98% of the variance of seafloor depth, but the slope, b=425±10 m Ma -1/2, implies improbably high mantle temperatures and/or low mantle densities. Moreover, there is some systematic misfit between the data and the halfspace model. A thermal subsidence model in which initial conditions vary with age accounts for the misfit, but also requires an implausible variation of mantle temperature and/or density. Alternatively, a model that includes the effect of induced flow in the asthenosphere eliminates the misfit and yields a reasonable rate of thermal subsidence b=330±20 m Ma -1/2. That the mantle temperature ( Tm˜1150±70)°C implied by the subsidence rate is slightly lower than normal is consistent with the hypothesis that this region has not been affected by hot spots or mantle plumes. The viscosity of the asthenosphere derived from the model (3-4 × 10 19 Pa s) is high, but consistent with viscosities estimated from plate dynamics models when the low mantle temperature is taken into account. Finally, the PMS flow model is consistent with measured heat flow in the region. These results lend weight to the hypothesis that the bathymetry of the Argentine Basin is influenced by induced flow in the asthenosphere, as well as by halfspace

  7. Chemical quality of different argentine honey varieties, irradiated to control american foulbrood

    International Nuclear Information System (INIS)

    'American foulbrood' is a disease that seriously affects bees. Honey may be contaminated with spores of the related bacteria, Paenibacillus larvae larvae, which is a great drawback for trade. The scientific literature reports that these spores, resistant to heat and chemicals, are inactivated in honey when it is irradiated al 10 kGy, being this treatment mandatory in the Republic of Southafrica. Irradiated food wholesomeness is endorsed by the World Health Organization. Considering that Argentina is an important honey producer and exporter, the aim of this work was to evaluate the effect of ionizing radiation on some of its commercial chemical parameters along storage time. Honeys with different characteristics, coming from five different regions of the country: Middle, Patagonia, North, Litoral, Humid Pampa, were provided by producers from a commission called 'Packaged honey' of the National Food, Fishery and Agriculture Ministry. Fifteen kg of each honey variety were packaged in 500 g polypropylene recipes with polyethylene lids, and irradiated at the semi industrial cobalt-60 facility of the Ezeiza Atomic Center, 500,000 Ci of activity, with doses of 0, 10 and 20 kilo Grays. Control and irradiated samples were stored at room temperature for 10 months. Some standardized chemical analysis required by the Argentine Food Code (AFC) were performed on the first, fourth and tenth storage months: water content, acidity, diastase content, reducing sugars, and hydroxymethylfurfural. Reducing sugars and diastase activity slightly diminished, and acidity slightly increased, along storage which is typical in this product; no significant differences were found between control and irradiated samples. Hydroxymethylfurfural values, related to aging or thermal abuse, diminished slightly though significantly due to irradiation, which would not affect the product quality as regulations require not to surpass a maximum value, 40 mg/kg in the AFC. So ionizing

  8. Les intellectuels espagnols exilés dans l'Argentine peroniste

    Directory of Open Access Journals (Sweden)

    Laurent Bonardi

    2008-12-01

    Full Text Available El gobierno argentino del general Perón reveló ser un verdadero chaleco salvavidas para la dictadura española. Esta política de cooperación provoca una viva oposición en Argentina. Este trabajo propone un análisis de las reacciones de los intelectuales españoles exiliados en Argentina. Observaremos de que manera los intelectuales españoles lucharon contra la dictadura franquista durante el idilio hispano-argentino y analizaremos el “modus operandi” adoptado por el gobierno peronista para obstaculizar las actividades anti-franquistas en el exilio.__________________ABSTRACT:The Argentine government of general Perón becomes an authentic life jacket for the Spanish dictatorship. This policy of cooperation triggers ample dispproval in Argentina. We propose an analysis of the reactions of the spanish intellectuals exiled in Argentina. We will see how the Spanish intellectuals fight against the Franco dictatorship during the honeymoon Hispanic-Argentinean. Also we will analyze the modus operandi adopted by the Peronist government to prevent the antifrancoist activities of the exiliados.

  9. Lithologic identification and characterization using ETM+ (Landsat 7. Study case of the Upsala glacier basin, Argentine

    Directory of Open Access Journals (Sweden)

    A. Lo Vecchio

    2016-06-01

    Full Text Available The object of this study aims to evaluate and analyze digital image processing techniques applied to the Enhanced Thematic Mapper Plus (ETM+, in order to demark and characterize the outcropping lithologies on the Upsala Glacier basin, Santa Cruz, Argentine Republic. The prolific technological and spatial development experienced in the last decades has given place to the generation, without precedents, of multiple remote sensors capable of capturing information of the terrestrial surface and also the improvement of digital image processing techniques and software; amongst them, the amazing possibilities in the detection and differentiation of diverse covers present on the terrestrial surface can be highlighted, such as glaciers, volcanoes, vegetation, soils, water, types of rock outcrops, etc. This situation improves mapping and monitoring of natural phenomenon in the Earth Sciences field. The proposed methodology includes radiometric corrections, elimination of unwanted covers, statistical evaluation in the combination of the most appropriate bands, application of the Z index, discretization of the statistical series, entailing tasks of spectral classification with field samples and a later validation. Valuable results were obtained by means of digital processing of images, that were validated yielding a 82% of accuracy in the proposed classification, which are good results taking into account the diversity of covers present and the lithological heterogeneity that makes up each pixel (30m. These results were also validated with existing geological maps, obtaining a good agreement.

  10. Screening of FSH receptor gene in Argentine women with premature ovarian failure (POF).

    Science.gov (United States)

    Sundblad, Victoria; Chiauzzi, Violeta A; Escobar, Maria Eugenia; Dain, Liliana; Charreau, Eduardo H

    2004-07-30

    Diverse mutations in FSH-receptor (FSHR) gene have been described as possible cause of premature ovarian failure (POF). To investigate the presence of mutations and/or polymorphisms in FSHR gene, DNA from 20 POF, 5 of which were diagnosed as resistant ovary syndrome (ROS), and from 44 controls was isolated from peripheral lymphocytes. The complete coding sequence was analysed by PCR followed by SSCP, direct sequencing or restriction enzyme analysis. No mutations in FSHR gene were identified in the patients studied. The two already described polymorphisms in exon 10, A919G and A2039G, cosegregated in all the homozygous individuals, indicating that FSHR presents two isoforms: Ala307-Ser680 and Thr307-Asn680. OR results suggest that the 919G-2039G allelic variant or the homozygous genotype is not associated to disease risk. In addition, a heterozygous substitution T1022C (Val341Ala) was found in two control subjects. We suggest that mutations in FSHR gene are rare in women with POF in Argentine. Presence of a particular FSHR isoform does not appear to be associated with this disease.

  11. Training and the personnel accreditation of regulatory functions in the Argentine Republic

    International Nuclear Information System (INIS)

    Teaching and the training are indispensable for the development of the human resources in all disciplines and occupations of the man in the world scale. About the applications of the radionuclides in the nuclear industry, in Argentina, during the last years, the efforts have been intensified. The necessity of improving the capacity of answer in radiation protection and nuclear safety demands an focus integrated in the teaching and the training. The radiological protection and the nuclear safety presents elements of the applied physics, the chemistry, the biology, the nuclear technology and other specialized subjects. However, in relation with the development of the human resources, specially those that belong to regulatory bodies and perform inspection functions, have important differences, necessities and specific problems. Some differences and problems emerge of the wide diversity and reach of the radiological and nuclear applications. Nowadays, in the world, the applications of the radiation and radioactive sources are being diversified in the medicine (diagnosis, radiotherapy, nuclear medicine, the industry, the agricultures, and the investigation and teaching), that involve a permanent knowledge and actualization of the personnel of the regulatory bodies. For that exposed this work describe training program for the personnel with regulatory functions (inspectors) of the Nuclear Regulatory Authority in the Argentine Republic. Also, this document includes the description of the basic formation and specialized in each case and it reach. (author)

  12. Reflections on the development of local suppliers for the Argentine nuclear industry

    International Nuclear Information System (INIS)

    Argentina has given recently a new start to its nuclear power activities. Looking for background and experiences that can be useful under the new reality, the paper is a survey of the past development of local suppliers for the national nuclear industry. Based on the intention to answer the questions: Why so early it was decided to build a nuclear power plant? Why it was decided to buy it under a turnkey basis rather than developing an indigenous design? and what was the meaning of the 'opening of the technology package' at that time?, the paper describes the actions that led to the purchase of the Atucha I, Embalse and Atucha II nuclear power plants and how these decisions were implemented in order to maximize local participation and the technology transfer. It also analyzes the influence of the Argentine Nuclear Plan of the late seventies on the development of endogenous technology and describes the facts that helped to preserve until now the technological nuclear capabilities of the country in spite of the stopping of the Atucha II construction, and to create positive expectations regarding the revival of the local industry as a supplier of nuclear goods and services. (author)

  13. Myxozoans as biological tags for stock identification of the Argentine hake, Merluccius hubbsi (Gadiformes: Merlucciidae).

    Science.gov (United States)

    Cantatore, D M P; Irigoitia, M M; Holzer, A S; Timi, J T

    2016-05-01

    Myxozoans have been successfully used as tags for fish stock identification around the world. However, few studies using myxozoan tags have been carried out in the Southern Atlantic, a region with complex oceanography that constitutes a potentially suitable scenario for testing the utility of myxozoans as indicators. Its usefulness was tested using six samples of Merluccius hubbsi in two different regions of the Argentine Sea. Generalized linear models were performed to assess the effects of fish size and sex, and year and region of capture and selected using the Information Theoretic approach. Three myxozoan species were recorded: Kudoa rosenbuschi, Myxoproteus meridionalis and Fabespora sp. Results of modelling species individually showed differential capabilities for detecting geographical population structure at different spatial scales, with K. rosenbuschi and Fabespora sp. allowing the discrimination of northern and southern stocks, but Fabespora sp. also as a promissory indicator of intrapopulation sub-structure due to different migratory routes during non-reproductive periods. This work confirms that myxozoans offer a set of suitable markers at different spatial scales, which can be selected individually or in any combination, depending on the geographical extent of the study, constituting tools adaptable to the objectives of further research on fish population structure.

  14. Characterization of pectinase activity for enology from yeasts occurring in Argentine Bonarda grape

    Directory of Open Access Journals (Sweden)

    María Gabriela Merín

    2015-09-01

    Full Text Available Pectinolytic enzymes are greatly important in winemaking due to their ability to degrade pectic polymers from grape, contributing to enhance process efficiency and wine quality. This study aimed to analyze the occurrence of pectinolytic yeasts during spontaneous fermentation of Argentine Bonarda grape, to select yeasts that produce extracellular pectinases and to characterize their pectinolytic activity under wine-like conditions. Isolated yeasts were grouped using PCR-DGGE and identified by partial sequencing of 26S rRNA gene. Isolates comprised 7 genera, with Aureobasidium pullulans as the most predominant pectinolytic species, followed by Rhodotorula dairenensis and Cryptococcus saitoi. No pectinolytic activity was detected among ascomycetous yeasts isolated on grapes and during fermentation, suggesting a low occurrence of pectinolytic yeast species in wine fermentation ecosystem. This is the first study reporting R. dairenensis and Cr. saitoi species with pectinolytic activity. R. dairenensis GM-15 produced pectinases that proved to be highly active at grape pH, at 12 °C, and under ethanol and SO2 concentrations usually found in vinifications (pectinase activity around 1.1 U/mL. This strain also produced cellulase activity at 12 °C and pH 3.5, but did not produce β-glucosidase activity under these conditions. The strain showed encouraging enological properties for its potential use in low-temperature winemaking.

  15. Characterization of pectinase activity for enology from yeasts occurring in Argentine Bonarda grape.

    Science.gov (United States)

    Merín, María Gabriela; Martín, María Carolina; Rantsiou, Kalliopi; Cocolin, Luca; de Ambrosini, Vilma Inés Morata

    2015-01-01

    Pectinolytic enzymes are greatly important in winemaking due to their ability to degrade pectic polymers from grape, contributing to enhance process efficiency and wine quality. This study aimed to analyze the occurrence of pectinolytic yeasts during spontaneous fermentation of Argentine Bonarda grape, to select yeasts that produce extracellular pectinases and to characterize their pectinolytic activity under wine-like conditions. Isolated yeasts were grouped using PCR-DGGE and identified by partial sequencing of 26S rRNA gene. Isolates comprised 7 genera, with Aureobasidium pullulans as the most predominant pectinolytic species, followed by Rhodotorula dairenensis and Cryptococcus saitoi. No pectinolytic activity was detected among ascomycetous yeasts isolated on grapes and during fermentation, suggesting a low occurrence of pectinolytic yeast species in wine fermentation ecosystem. This is the first study reporting R. dairenensis and Cr. saitoi species with pectinolytic activity. R. dairenensis GM-15 produced pectinases that proved to be highly active at grape pH, at 12 °C, and under ethanol and SO2 concentrations usually found in vinifications (pectinase activity around 1.1 U/mL). This strain also produced cellulase activity at 12 °C and pH 3.5, but did not produce β-glucosidase activity under these conditions. The strain showed encouraging enological properties for its potential use in low-temperature winemaking. PMID:26413065

  16. Urban Infestation Patterns of Argentine Ants, Linepithema humile, in Los Angeles

    Directory of Open Access Journals (Sweden)

    Smadar Gilboa

    2012-01-01

    Full Text Available Infestations of buildings by Argentine ants, Linepithema humile (Mayr, were monitored on the campus of the University of California, Los Angeles. Foraging ant activity peaked during the hotter months of the year. The mean monthly maximum temperature, but not rainfall, positively correlated with indoor infestation frequency. Neither garden size nor the predominant groundcover vegetation correlated with the number of foraging ants at baits within gardens. Although the number of foraging ants outside a building varied over 40-fold, ant density in gardens did not predict the likelihood of infestation within the building. Also, the type of vegetative groundcover employed did not predict infestation frequency. There was, however, a significant negative relationship between the size of the garden outside of a building and the number of infestations. Given the large foraging area of L. humile workers, buildings next to small gardens may be infested simply because they lie within the “normal” foraging area of a colony. The best predictor of which rooms were infested within buildings was the presence of a water source. Thus providing water for ant colonies outside and away from buildings may be one method of integrated pest management to reduce the proclivity of ants to infest structures.

  17. Argentine activities related to the development of low enriched fuel elements

    International Nuclear Information System (INIS)

    Within the framework of the RERTR Program and supported by the technical cooperation work agreed upon between the USA and Argentina in May 1979, the CNEA Nuclear Fuel Department - Low Enriched Fuel Elements Project (ECBE Project) has carried on its own program for developing fuels with low enrichment for research and test reactors. Up to the present, its main objective has been to replace the highly enriched fuel used in its only reactor (RA-3) for research, development and radioisotopes production. The basic stages of the Argentine Program are shown. The densities reached were within the range of 3.12 to 3.58 g/cm3 for U3O8-Al, 2.99 to 3.09 g/cm3 for UAl2-Al and 5.18 to 6.10 g/cm3 for U3Si-Al. If further miniplates can be irradiated, it is the purpose of the program to research uranium densities of 3.5 g/cm3 in UAl2-Al and 6.5 g/cm3 in U3Si-Al

  18. Magnetic and Moessbauer Studies of Quaternary Argentine Loessic Soils and Paleosols

    Energy Technology Data Exchange (ETDEWEB)

    Mercader, R. C., E-mail: mercader@fisica.unlp.edu.ar; Sives, F. R. [Universidad Nacional de La Plata, Departamento de Fisica, IFLP, Facultad de Ciencias Exactas (Argentina); Imbellone, P. A. [Universidad Nacional de La Plata, Instituto de Geomorfologia y Suelos (Argentina); Vandenberghe, R. E. [Ghent University, NUMAT, Department of Subatomic and Radiation Physics (Belgium)

    2005-02-15

    This paper is a review of the current status about the remaining problems that are found in the investigation of the Quaternary Argentine soils and loessic sediments, and the way that Moessbauer studies can assist in solving them. There are two main types of investigations that make use of the magnetic response of the samples to correlate them with information gathered by other methods. On the one hand, there is the stratigraphic and chronological research, which is of importance from the geological and paleontological points of view. On the other hand, the paleoclimatic records, of significance toward a possible model of the past climate, are also studied because of their close relation to the sediments history. However, there is not yet a model that can tell the difference between the modifications due to the climatic conditions at the time when the soils were buried from processes that occurred after burial. Some examples are given that show that Moessbauer studies can be applied with a certain degree of success when cross-checked with magnetic measurements toward understanding the processes that occurred in alluvial B (paleosols) and C horizons (loess) from the eastern part of Buenos Aires Province. Although the application of Moessbauer studies to hydromorphic processes in soils is not straightforward, there are cases in which Moessbauer spectroscopy, if applied properly and correlated with other techniques, is able to characterize the type of iron oxides existing in the materials and thus assist theories about its origin and history.

  19. Chemical defense by the native winter ant (Prenolepis imparis against the invasive Argentine ant (Linepithema humile.

    Directory of Open Access Journals (Sweden)

    Trevor R Sorrells

    Full Text Available The invasive Argentine ant (Linepithema humile is established worldwide and displaces native ant species. In northern California, however, the native winter ant (Prenolepis imparis persists in invaded areas. We found that in aggressive interactions between the two species, P. imparis employs a potent defensive secretion. Field observations were conducted at P. imparis nest sites both in the presence and absence of L. humile. These observations suggested and laboratory assays confirmed that P. imparis workers are more likely to secrete when outnumbered by L. humile. Workers of P. imparis were also more likely to secrete near their nest entrances than when foraging on trees. One-on-one laboratory trials showed that the P. imparis secretion is highly lethal to L. humile, causing 79% mortality. The nonpolar fraction of the secretion was chemically analyzed with gas chromatography/mass spectrometry, and found to be composed of long-chain and cyclic hydrocarbons. Chemical analysis of dissected P. imparis workers showed that the nonpolar fraction is derived from the Dufour's gland. Based on these conclusions, we hypothesize that this chemical defense may help P. imparis to resist displacement by L. humile.

  20. Ion and neutral energy flux distributions to the cathode in glow discharges in Ar/Ne and Xe/Ne mixtures

    Science.gov (United States)

    Capdeville, H.; Pédoussat, C.; Pitchford, L. C.

    2002-02-01

    The work presented in the article is a study of the heavy particle (ion and neutral) energy flux distributions to the cathode in conditions typical of discharges used for luminous signs for advertising ("neon" signs). The purpose of this work is to evaluate the effect of the gas mixture on the sputtering of the cathode. We have combined two models for this study: a hybrid model of the electrical properties of the cathode region of a glow discharge and a Monte Carlo simulation of the heavy particle trajectories. Using known sputtering yields for Ne, Ar, and Xe on iron cathodes, we estimate the sputtered atom flux for mixtures of Ar/Ne and Xe/Ne as a function of the percent neon in the mixture.

  1. A report of the threatened plant Decalepis hamiltonii Wight & Arn. (Asclepiadaceae from the mid elevation forests of Pachamalai Hills of the Eastern Ghats, Tamil Nadu, India

    Directory of Open Access Journals (Sweden)

    V. Anburaja

    2012-12-01

    Full Text Available The Pachamalai Hills are a part of the Eastern Ghats and are situated in the central region of Tamil Nadu. The vegetated area is distributed into 35 reserved forests of Pachamalai Hills. The plant Decalepis hamiltonii Wight & Arn. is one of the threatened plant found in the study area. This indicates that the Pachamalai Hills can harbour good vegetation which are the vestiges of a luxuriant vegetation cover of the past era, hence, need to be protected. The hills are most significant socio-culturally because of the diversified forest patches found there. These hills have been studied earlier mainly for floristic analysis. Before this, D. hamiltonii has not been collected from Pachamalai.

  2. Utilidad de la monitorización del ARN del virus de la hepatitis C durante el tratamiento antiviral como factor predictor de respuesta mantenida

    OpenAIRE

    Castro Bohórquez, Francisco José

    2001-01-01

    Descripció del recurs: 9 setembre 2002 Consultable des del TDX Títol obtingut de la portada digitalitzada El virus de la hepatitis C (VHC) constituye la causa más prevalente de hepatitis crónica en los países desarrollados. El principal fármaco en el tratamiento de la hepatitis crónica C es el interferón. La monitorización de la respuesta a la terapia se basa en la evolución de los niveles de ALT, aunque más recientemente el desarrollo de técnicas de detección molecular del ARN del V...

  3. Evaluation of analgesic and anti-inflammatory potential of Hedyotis puberula (G. Don) R. Br. ex Arn. in experimental animal models.

    Science.gov (United States)

    Joseph, Jince Mary; Sowndhararajan, Kandhasamy; Manian, Sellamuthu

    2010-07-01

    Hedyotis puberula (G. Don) R. Br. ex Arn. is used for the treatment of several ailments in the traditional system of medicine. In the present study, the methanol extract of the whole plant (200 and 400 mg/kg) exhibited significant analgesic and anti-inflammatory activities in a dose dependent manner. The analgesic effect, evaluated in mice in hot plate as well as acetic acid-induced writhings, were higher than the standard drugs pentazocine (30 mg/kg) and indomethacin (5 mg/kg), respectively. Further, the methanol extract at the dose of 400mg/kg produced significant inhibition of carrageenan induced paw edema and reduced the weight of granuloma in cotton pellet-induced granuloma pouch model. PMID:20417244

  4. In-vitro-istraživanja rasta kalusa vrste Pinus nigra Arn. 1. Djelovanje anorganskog i organskog dušika iz različitih izvora

    OpenAIRE

    Kolevska-Pletikapić, Branka

    1982-01-01

    Kalusna loza K vrste Pinus nigra Arn. reagirala je na sastav izvora anorganskog dušika tako da je rasla to bolje što je podloga bila bogatija dušikam. Stoga je dobro rasla na podlogama s povećanom koncentracijom NH4NO3, no također i onda kad je ta amonijeva sol bila zamijenjena s (NH4)2S04 ili (NH4)2HP04. Na sastav izvora organskog aminodušika ta je loza reagirala veoma neujednačenim rastom. Najbolje je rasla na podlozi s glutaminom, na kojoj je njeno, inače žućkasto, tkivo ozelenilo. Od a...

  5. Anadolu karaçamı [Pinus nigra ssp. nigra Arn. var. caramanica (Loudon) Rehder] meşcerelerinde uygulanan ilk aralamaların ekofizyolojik etkileri

    OpenAIRE

    GENÇ, Musa; ÖZKAN, Kürşad; Özçelik, Ramazan; Güner, Teoman Şükrü; Serkan GÜLSOY; Deligöz, Ayşe

    2012-01-01

    Bu çalışma, Anadolu karaçamı (Pinus nigra ssp. nigra Arn. var. caramanica (Loudon) Rehder) meşceresinde uygulanan ilk aralamaların şiddetinin yakın dönem ekofizyolojik etkilerini incelemek ve uygun aralama derecesini belirlemek amacıyla yapılmıştır. Aralama işlemleri, doğal yolla gençleştirilmiş 36-40 yaşlarındaki Anadolu karaçamı meşcerelerinde dört farklı aralama yoğunluğunda (Kontrol, zayıf alçak aralama, mutedil alçak aralama ve kuvvetli alçak aralama) üç tekrarlı olarak uygulanmıştır. An...

  6. 15 June 2009 - President of the Argentine Nation C. Fernández visiting ATLAS experimental area.

    CERN Multimedia

    Maximilien Brice

    2009-01-01

    Tirage 1:President of the Argentine Nation, C. Fernández and Minister of Science, Technology and Innovative Production,L. Barañao Tirage 2-8:Arrival greetings Tirage 9-12:Introduction to CERN's activities by Director-General, R. Heuer Tirage 13-15:Signature of the guest book Tirage 16-25:M. Benedetti,R. Heuer and L.Barañao sit for the signature of the Agreement Tirage 26-33: Meeting with Argentinian scientists at CERN

  7. La construction territoriale de têtes de ponts antarctiques rivales : Ushuaia (Argentine) et Punta Arenas (Chili)

    OpenAIRE

    Guyot, Sylvain

    2012-01-01

    Ushuaia et Punta Arenas sont les villes les plus australes de leurs pays d’appartenance,  l’Argentine et le Chili. Elles ont joué le rôle de ville frontière au service de la consolidation et la légitimation de ces territoires nationaux austraux localisés en position de bout du monde. Depuis cinquante ans, ces deux villes portuaires s’affirment comme les deux portes d’entrée internationales principales des relations avec le continent Antarctique, et en particulier avec la Péninsule Antarctique...

  8. Figurations of Islandness in Argentine Culture and Literature: Macedonio Fernández, Leopoldo Marechal, and César Aira

    Directory of Open Access Journals (Sweden)

    Norman Cheadle

    2009-11-01

    Full Text Available This article explores islandness in the River Plate imaginary. Two modern foundational “island texts” – Thomas More’s Utopia and Daniel Defoe’s Robinson Crusoe – have exerted a formative influence on the Spanish-American colonial imagination, an influence inflected by the particular historical experience of the River Plate region and its dominant city, Buenos Aires. The figuration of islandness is examined in three twentieth-century Argentine novels by Macedonio Fernández, Leopoldo Marechal, and César Aira. The article finds both continuity and evolution in the images of islandness in these novels.

  9. Suspending the next turn as a form of repair initiation: evidence from Argentine Sign Language.

    Science.gov (United States)

    Manrique, Elizabeth; Enfield, N J

    2015-01-01

    Practices of other-initiated repair deal with problems of hearing or understanding what another person has said in the fast-moving turn-by-turn flow of conversation. As such, other-initiated repair plays a fundamental role in the maintenance of intersubjectivity in social interaction. This study finds and analyses a special type of other-initiated repair that is used in turn-by-turn conversation in a sign language: Argentine Sign Language (Lengua de Señas Argentina or LSA). We describe a type of response termed a "freeze-look," which occurs when a person has just been asked a direct question: instead of answering the question in the next turn position, the person holds still while looking directly at the questioner. In these cases it is clear that the person is aware of having just been addressed and is not otherwise accounting for their delay in responding (e.g., by displaying a "thinking" face or hesitation, etc.). We find that this behavior functions as a way for an addressee to initiate repair by the person who asked the question. The "freeze-look" results in the questioner "re-doing" their action of asking a question, for example by repeating or rephrasing it. Thus, we argue that the "freeze-look" is a practice for other-initiation of repair. In addition, we argue that it is an "off-record" practice, thus contrasting with known on-record practices such as saying "Huh?" or equivalents. The findings aim to contribute to research on human understanding in everyday turn-by-turn conversation by looking at an understudied sign language, with possible implications for our understanding of visual bodily communication in spoken languages as well. PMID:26441710

  10. Suspending the next turn as a form of repair initiation: evidence from Argentine Sign Language

    Directory of Open Access Journals (Sweden)

    Elizabeth eManrique

    2015-09-01

    Full Text Available Practices of other-initiated repair deal with problems of hearing or understanding what another person has said in the fast-moving turn-by-turn flow of conversation. As such, other-initiated repair plays a fundamental role in the maintenance of intersubjectivity in social interaction. This study finds and analyses a special type of other-initiated repair that is used in turn-by-turn conversation in a sign language: Argentine Sign Language (Lengua de Señas Argentina or LSA. We describe a type of response termed a ‘freeze-look’, which occurs when a person has just been asked a direct question: instead of answering the question in the next turn position, the person holds still while looking directly at the questioner. In these cases it is clear that the person is aware of having just been addressed and is not otherwise accounting for their delay in responding (e.g., by displaying a ‘thinking’ face or hesitation, etc.. We find that this behavior functions as a way for an addressee to initiate repair by the person who asked the question. The ‘freeze-look’ results in the questioner ‘re-doing’ their action of asking a question, for example by repeating or rephrasing it. Thus we argue that the ‘freeze-look’ is a practice for other-initiation of repair. In addition, we argue that it is an ‘off-record’ practice, thus contrasting with known on-record practices such as saying ‘Huh?’ or equivalents. The findings aim to contribute to research on human understanding in everyday turn-by-turn conversation by looking at an understudied sign language, with possible implications for our understanding of visual bodily communication in spoken languages as well.

  11. The Utility of Seasonal Climate Forecasts: Understanding Argentine Farmers' Attribute Priorities and Trade-Offs

    Science.gov (United States)

    Seipt, E. C.; Easterling, W. E.

    2007-05-01

    A distinct El Niño - Southern Oscillation (ENSO) signal and its impacts have been confirmed in the Argentine Pampas, and precipitation variability is currently recognized as the region's most marked ENSO-driven influence. In the Pampas, precipitation is also a major limiting factor for agricultural production given spatial differences in soil water storage capacities and the region's relatively minimal use of irrigation. Seasonal climate forecasts that provide advanced knowledge of expected ENSO-driven precipitation anomalies may benefit farm management decision-making by helping to either mitigate potentially negative consequences or to take advantage of potentially positive influences. To be useful and applicable, however, these forecasts must suit the decisions that they are meant to inform. In this research, a case study is presented that investigates how farmers in the Pampas prioritize and trade off specific attributes of a seasonal climate forecast (i.e., mode of distribution, spatial resolution, lead time, and forecast performance) when judging its utility. A conjoint analysis evaluation decomposes holistic evaluations of forecasts into the part-worth utilities associated with their different attributes. Part-worth utilities combine to reveal the structure of farmers' forecast utility preferences - a model of the decision-making process. Utility preference structures are analyzed to compute the importance value of each attribute and to determine the trade-offs that farmers find acceptable between different attributes. Analysis indicates that, on average, spatial resolution is the most influential attribute in determining climate forecast utility. Attribute trade-off values suggest that advances in spatial resolution, forecast performance, and/or product dissemination via the Internet offer the greatest potential for increasing the utility of future seasonal climate forecasts for farmers in the Pampas.

  12. Ordovician K-bentonites in the Argentine Precordillera: relations to Gondwana margin evolution

    Science.gov (United States)

    Huff, W.D.; Bergstrom, Stig M.; Kolata, Dennis R.; Cingolani, C.A.; Astini, R.A.

    1998-01-01

    This paper is included in the Special Publication entitled 'The proto- Andean margin of Gondwana', edited by R.J. Pankhurst and C.W. Rapela. Ordovician K-bentonites have now been recorded from >20 localities in the vicinity of the Argentine Precordillera. Most occur in the eastern thrust belts, in the San Juan Limestone and the overlying the Gualcamayo Formation, but a few ash beds are known also from the central thrust belts. The oldest occur in the middle Arenig I, victoriae lunatus graptolite (Oe. evae conodont) Zone, and the youngest in the middle Llanvirn P. elegans (P. suecicus) Zone. Mineralogical characteristics, typical of other Ordovician K-bentonites, include a matrix of illite/smectite mixed-layer clay and a typical felsic volcanic phenocryst assemblage: biotite, beta-form quartz, alkali and plagioclase feldspar, apatite, and zircon, with lesser amounts of hornblende, clinopyroxene, titanite and Fe-Ti oxides. The proportions of the mineral phases and variations in their crystal chemistry are commonly unique to individual (or small groups of) K-bentonite beds. Glass melt inclusions preserved in quartz are rhyolitic in composition. The sequence is unique in its abundance of K-bentonite beds, but a close association between the Precordillera and other Ordovician sedimentary basins cannot be established. The ash distribution is most consistent with palaeogeographical reconstructions in which early Ordovician drifting of the Precordillera occurred in proximity to one or more volcanic arcs, and with eventual collision along the Andean margin of Gondwana during the mid-Ordovician Ocloyic event of the Famatinian orogeny. The Puna-Famatina terrane northeast of the Precordillera might have served as the source of the K-bentonite ashes, possibly in concert with active arc magmatism on the Gondwana plate itself.

  13. Circadian analysis of myocardial infarction incidence in an Argentine and Uruguayan population

    Directory of Open Access Journals (Sweden)

    Nicola-Siri Leonardo

    2006-01-01

    Full Text Available Abstract Background The occurrence of variations in the spectrum of cardiovascular disease between different regions of the world and ethnic groups have been the subject of great interest. This study report the 24-h variation of myocardial infarction (MI occurrence in patients recruited from CCU located in Argentina and Uruguay. Methods A cohort of 1063 patients admitted to the CCU within 24 h of the onset of symptoms of an acute MI was examined. MI incidence along the day was computed in 1 h-intervals. Results A minimal MI incidence between 03:00 and 07:00 h and the occurrence of a first maximum between 08:00 and 12:00 h and a second maximum between 15:00 and 22:00 h were verified. The best fit curve was a 24 h cosinor (acrophase ~ 19:00 h, accounting for 63 % of variance together with a symmetrical gaussian bell (maximum at ~ 10:00 h, accounting for 37 % of variance. A similar picture was observed for MI frequencies among different excluding subgroups (older or younger than 70 years; with or without previous symptoms; diabetics or non diabetics; Q wave- or non-Q wave-type MI; anterior or inferior MI location. Proportion between cosinor and gaussian probabilities was maintained among most subgroups except for older patients who had more MI at the afternoon and patients with previous symptoms who were equally distributed among the morning and afternoon maxima. Conclusion The results support the existence of two maxima (at morning and afternoon hours in MI incidence in the Argentine and Uruguayan population.

  14. Scheme of 3 interfaces with local isostatic compensation on the Argentine continental margin

    Science.gov (United States)

    Pedraza De Marchi, A. C.; Ghidella, M. E.; Tocho, C.

    2013-05-01

    The segment of Argentine continental margin located between 39°S and the Malvinas platform (~49°S) is of passive type and volcanic characteristics revealed by seaward-dipping seismic reflectors sequences (SDRs). The free air gravity edge-effect associated with passive continental margins is one of the most distinctive characteristics of gravity in marine regions. This effect is in large part due to the transition between continental and oceanic crusts, because of their different thicknesses. In this presentation we investigate the Airy type isostatic compensation scheme by using three interfaces in a forward calculation with different approximations of Parker's expression to obtain the isostatic anomaly. After that we perform the inversion of the anomaly thus obtained in order to find the Moho's deflection necessary to compensate it (or minimize it) by using the same scheme of interfaces and the iterative Parker-Oldenburg method (Oldenburg, D., 1974) with more terms in the inversion. The crust-mantle interface (Moho) thus calculated represents a more realistic surface than the one calculated using one term in the inversion and the surface estimated with topographic data and sediment thickness. Even considering that the experiment constitutes a schematic assumption just to test the numerical methods involved, we find that in the comparison with the only available digitized refraction profile, the inverted Moho interface reproduces fairly well the Moho that the seismic profile yields, for the case of the iterative method. This suggests that the inverse calculation with the iterative method is sensible to the presence of the SDRS, at least for this sole profile. Keywords: isostatic anomaly, Moho, passive continental margins Oldenburg, D., 1974. The inversion and interpretation of gravity anomalíes, Geophysics, vol. 39, no. 4, p. 526-536.

  15. Eddy-driven sediment transport in the Argentine Basin: Is the height of the Zapiola Rise hydrodynamically controlled?

    Science.gov (United States)

    Weijer, Wilbert; Maltrud, Mathew E.; Homoky, William B.; Polzin, Kurt L.; Maas, Leo R. M.

    2015-03-01

    In this study, we address the question whether eddy-driven transports in the Argentine Basin can be held responsible for enhanced sediment accumulation over the Zapiola Rise, hence accounting for the existence and growth of this sediment drift. To address this question, we perform a 6 year simulation with a strongly eddying ocean model. We release two passive tracers, with settling velocities that are consistent with silt and clay size particles. Our experiments show contrasting behavior between the silt fraction and the lighter clay. Due to its larger settling velocity, the silt fraction reaches a quasisteady state within a few years, with abyssal sedimentation rates that match net input. In contrast, clay settles only slowly, and its distribution is heavily stratified, being transported mainly along isopycnals. Yet, both size classes display a significant and persistent concentration minimum over the Zapiola Rise. We show that the Zapiola Anticyclone, a strong eddy-driven vortex that circulates around the Zapiola Rise, is a barrier to sediment transport, and hence prevents significant accumulation of sediments on the Rise. We conclude that sediment transport by the turbulent circulation in the Argentine Basin alone cannot account for the preferred sediment accumulation over the Rise. We speculate that resuspension is a critical process in the formation and maintenance of the Zapiola Rise.

  16. Consideraciones taxonómicas en especies de Senecio de Argentina Taxonomic considerations on Argentine species of Senecio

    Directory of Open Access Journals (Sweden)

    Roberto D. Tortosa

    2010-12-01

    Full Text Available Se incluyen algunas especies de Senecio de Argentina, reconocidas hasta el presente como especies válidas, en la sinonimia de otras: S. francisci Phil. en S. polygaloides Phil.; S. gymnocaulos Phil. en S. kingii Hook. f.; S. molinae Phil. en S. glaber Less.; S. mustersii Speg. y su var. dentatus Cabrera en S. subumbellatus Phil. Senecio microcephalus Phil. y su var. angustifolius Cabrera son consideradas una variedad de S. subumbellatus y S. schreiteri Cabrera una variedad de S. leucostachys Baker. No se acepta la validez de las variedades Senecio gilliesii Hook. et Arn. var. dasycarpus Cabrera, S. glaber Less. var. pratensis (Phil. Cabrera, S. gnidioides Phil. var. gilvus (Phil. Cabrera, S. kingii Hook. f. var. paradoxus (Albov ex Kurtz Cabrera, S. leucomallus A. Gray var. incisus A. Gray, S. linariifolius Poepp. ex DC. var. heliophytoides (Phil. Reiche y var. subtomentosus Cabrera y de la forma S. perezii Cabrera fo. integerrimus Cabrera.

  17. Improvements related with the safety required by the Argentine Regulatory Authority to the Atucha I Nuclear Central

    International Nuclear Information System (INIS)

    The Argentinean Nuclear Regulation Authority (ARN) verified the existence of changes in the state of some internal components of the reactor of the Atucha I Nuclear Power station that, of continuing in the time, it could take to an inconvenient degradation for the safety operation of the installation. In consequence, to the effects of preventing that reach this situation, at the end of 1999, the ARN required to the Responsible Entity for the operation of this power station the implementation of an important improvements program in the internal components of the reactor. Additionally, and based on the results of the Probabilistic Safety analysis, it was added the one mentioned improvements program the implementation of an alternative cooling system of the reactor core denominated Second Drain of Heat, due to it was determined that, for some accidental sequences, their performance would reduce considerably the probability of damage to the core. The concretion of the improvements program implied to the Responsible Entity the realization of an important quantity of engineering studies, tests and specific inspections that allowed to carry out changes on the control bars of the reactor and its guide tubes; the coolant channels; the sensors of neutron flow; and diverse components of the primary and moderator systems. On the other hand also it was implemented the system Second Drain of Heat, what represents a considerable effort to make compatible the instrumentation and control of last generation, with the instrumentation and existent control systems in the power station. Also, it was requested to be carried out an integrity of the pressure recipient for to demonstrate the existence of an acceptable margin for the difference among the acceptable limit temperatures and of ductile/fragile transition of the material for all the possible accidental scenarios during the useful life of the reactor. (Author)

  18. Hydroacoustical evidence of the expansion of pelagic swarms of Munida gregaria (Decapoda, Munididae) in the Beagle Channel and the Argentine Patagonian Shelf, and its relationship with habitat features

    Science.gov (United States)

    Diez, Mariano J.; Cabreira, Ariel G.; Madirolas, Adrián; Lovrich, Gustavo A.

    2016-08-01

    Squat lobsters are highly diversified and widespread decapods, of which only three species form pelagic swarms. Here we infer the expansion of Munida gregaria populations in the Beagle Channel and the Argentine Patagonian Shelf by means of acoustic surveys of pelagic swarms. We also describe the habitat characteristics in which these swarms occur. Acoustic data was collected during three multidisciplinary scientific cruises on board of the R/V Puerto Deseado during 2009, 2012 and 2014. Despite differences in the environmental conditions between the two surveyed areas, between 2009 and 2014 pelagic swarms increased their occurrence and abundance both in the Beagle Channel and on the Argentine Patagonian Shelf. Towards the end of the studied period, pelagic swarms of M. gregaria occurred in new locations, supporting the notion of a population expansion. Within the Beagle Channel swarm expansions were more marked than on the Patagonian Shelf. We here postulate that M. gregaria expansions occur in association with productive areas of the Argentine continental shelf, such as frontal zones, favoured by the squat lobster phenotypic plasticity that permit to exploit resources in both the neritic and benthic environments. At a regional scale on the Patagonian Shelf, three main groups of pelagic swarms of M. gregaria were clearly associated to respective frontal zones. The information presented here is necessary to understand fluctuations in both distribution and abundance patterns of a key species on the Argentine continental shelf. These fluctuations could be direct or indirect indicators of changes in the ecosystem.

  19. Experience of the Argentine Radioprotection Society in training in radiological protection

    International Nuclear Information System (INIS)

    From its creation in 1967, the Argentine Radioprotection Society (SAR) has as basic purpose promoting all the aspects related with the radiological protection and the nuclear safety. Due to the great increment in the use of radioactive sources in diverse areas, soon it was evident for the SAR the importance and necessity to promote the knowledge of the radioprotection approaches between the users of radioactive sources and ionizing radiations in all its application fields, be these industrial, academic or doctors. From the year 2000, the SAR comes organizing in regular and periodical form basic and specialized courses about radiological safety of radioactive sources for industrial use and profile of oil wells, among others. In this work, the characteristics of the different dictated courses are described whose programs have been developed keeping in mind the requirements of the competent authorities of Argentina. Also, statistical information on the dictated courses and its participants is presented. The number of dictated courses was incremented from 6 (year 2000) up to 16 (year 2005), being also increased significantly the number of participants for course. The dictated courses are theoretical-practical, with a duration average of 20 hs. The educational body is constituted by specialists in the different topics with recognized experience. Its given to the participants notes and support material, as well as copies of the material presented to develop the course. When concluding the courses, its deliver to the participants certifies of attendance and/or approval, as it corresponds. In their headquarters the SAR has didactic facilities and specific equipment for the dictation of the courses. Also accounts with the easiness of dictating those courses outside of their headquarters. This is particularly advantageous for companies or organizations that are seated in points far from the main cities and they should qualify in radiological safety to the personnel but, by

  20. Education and training in radiological protection in the Argentine region- IAEA, toward a long term commitment

    International Nuclear Information System (INIS)

    The Argentine Republic has extensive antecedents in education and training in radiological protection. From the beginning of the nuclear activity in the country was given preponderance to the aspects related with the radiological protection and the personnel's training involved in the employment of ionizing radiations. At the present time these educational activities already overcome the 50 years, there being accumulated a rich and important experience in the matter. In the country the organisms that have assigned by law the responsibility of the regulation and the control of practice them with ionizing radiations are the Nuclear Regulatory Authority and the Ministry of Health and Atmosphere of the Nation. The first one has the mission of protecting people of the noxious effects of the ionizing radiations derived of nuclear activities, the second is in charge of the control of the equipment dedicated specifically to generate X-rays. This includes the responsibility of elaborating, to emit and to make complete the regulations, standards and other corresponding requirements, in particular - in the mark of the present work - regarding to establish demands and to promote education activities and training in radiological protection. The sure use of the benefits that offers the nuclear development in its diverse applications implies to overturn resources, experience and dedication for the personnel's training. In that sense the Argentina has committed recently to undertake the necessary actions to constitute a Regional Center of Education and Training for Latin America and the Caribbean, taking advantage of the important experience obtained in more of 25 years of imparting graduate degree courses in radiological protection and nuclear safety with inter regional and regional character. With that purpose a process of self evaluation has begun (self appraisal), following the limits settled down by the International Atomic Energy Agency in the document 'Education and

  1. The Pacific-Atlantic connection: Biogeochemical signals in the southern end of the Argentine shelf

    Science.gov (United States)

    Garzón, J. E. Cardona; Martínez, A. M.; Barrera, F.; Pfaff, F.; Koch, B. P.; Freije, R. H.; Gómez, E. A.; Lara, R. J.

    2016-11-01

    The Cape Horn Current transports low-salinity waters from the SE Pacific Ocean into the Atlantic, which are transported further north by the Malvinas current. Biogeochemical signals of this connection were studied by characterization of dissolved organic matter (DOM) by determination of dissolved organic carbon (DOC), fluorescent dissolved organic matter (FDOMc), and DOM humification index (HIX). Further, inorganic nutrients, salinity, temperature, stable isotopic composition of particulate organic nitrogen (δ15N) and chlorophyll a (Chla) were measured in the southern end of the Argentine shelf in March 2012. Three water types were characterized: waters of the Beagle Channel (BCW), coastal waters (CW) and oceanic waters (OW). Highest values of ammonium, DOC, FDOMc and HIX were found in BCW, the lowest in OW, suggesting that terrigenous input is a main source of ammonium and refractory carbon, which is supported by a highly significant inverse correlation of these parameters with salinity. In turn, lowest concentrations of nitrate, silicate and phosphate were found in BCW and CW, and highest in OW, with highly significant correlations of these nutrients with salinity, indicating the contribution of the saltier, nutrient-rich Antarctic Circumpolar Current (ACC) to the Pacific-Atlantic connection system. In general there was an inverse distribution pattern between Chla and those nutrients contributed by the ACC, which is consistent with the transition from coastal waters to the low-silicate, high-nitrate, low-chlorophyll, iron-limited setting of the Subantarctic oceanic waters north of the Polar Front. In contrast, in the low-salinity, internal BCW, high values of ammonium, DOC, HIX and FDOM indicate continental inputs, likely including iron complexes, which could have led to the observed high Chla values. δ15N values were positive in the study region, and same as ammonium, reached a maximum in the inner part of the BCW, declining towards OW. This does not support a

  2. The Information Center of the Argentine National Board of Nuclear Regulation (ENREN)

    International Nuclear Information System (INIS)

    This paper is addressed particularly to the scientific community users and, as a whole, to any individual in society, whichever his profession or working environment, who is interested in getting acquainted of improving his/her knowledge in the areas of radiological protection and nuclear safety, as well as in other related areas of medicine, biology, engineering, mathematics and physics. The purpose of this paper is the diffusion of the broad spectrum of bibliography and the introduction of the technological-computerized media utilized as tools by the Argentine National Board of Nuclear Regulation in providing responses to a huge number of both internal and external requests for information. There is a large number of professionals and/or researchers who visit the facilities of our Information Center or who get in touch - through the post service, e-mail or telephone - consulting on the available material, either in paper (books, periodical publications, etc.) or in the form of microfilms, video, tapes, CD-ROM, etc. This paper is both descriptive and explanatory; a description is provided of the bibliographical material managed by the Information Center and a brief explanation is given on the techniques and methods used in providing the information requested by the users. Fundamentally, the Center's bibliographical material includes: periodical publications, books, reports, microfilms, etc., all of them related to radiological protection and nuclear safety. Data bases are available in CD-ROM, the most important one being the International Nuclear Information System (INIS) developed by the International Atomic Energy Agency (IAEA). The Center has also its own data bases, such as the GPRS (primary documents) and standards (both domestic and international), UNESCO's MicroIsis software is used for the Center's data bases: PERSIS (periodical publications), DOCSIS (books) and ARCAL (magazines from the Latin American territory). This paper will definitely serve as a safe

  3. Large-Scale Agricultural Management and Soil Meso- and Macrofauna Conservation in the Argentine Pampas

    Directory of Open Access Journals (Sweden)

    José Camilo Bedano

    2016-07-01

    Full Text Available Soil is the most basic resource for sustainable agricultural production; it promotes water quality, is a key component of the biogeochemical cycles and hosts a huge diversity of organisms. However, we are not paying enough attention to soil degradation produced by land use. Modern agriculture has been successful in increasing yields but has also caused extensive environmental damage, particularly soil degradation. In the Argentine Pampas, agriculturization reached a peak with the generalized use of the no-till technological package: genetically modified soybeans tolerant to glyphosate, no-till, glyphosate, and inorganic fertilizers. This phenomenon has been widely spread in the country; the no-till package has been applied in large areas and has been used by tenants in a 60%–70% of cultivated lands. Thus, those who were involved in developing management practices may not be the same as those who will face degradation issues related to those practices. Indeed, most evidence reviewed in this paper suggests that the most widely distributed practices in the Pampas region are actually producing severe soil degradation. Biological degradation is particularly important because soil biota is involved in numerous soil processes on which soil functioning relies, affecting soil fertility and productivity. For example, soil meso- and macrofauna are especially important in nutrient cycling and in soil structure formation and maintenance, and they are key components of the network that links microbial process to the scale of fields and landscapes where ecosystem services are produced. However, the knowledge of the impact of different agricultural managements on soil meso- and macrofauna in Pampas agroecosystems is far from conclusive at this stage. The reason for this lack of definite conclusions is that this area has been given less attention than in other parts of the world; the response of soil fauna to agricultural practices is complex and taxa

  4. Investigation of the impact of the $^{39}$Ar(n , $\\alpha)^{36}$S reaction on the nucleosynthesis of the rare isotope $^{36}$S

    CERN Multimedia

    Geltenbort, P

    2002-01-01

    The origin of the rare, neutron rich isotope $^{36}$S remains a debated question. One of the key reactions in the s-process nucleosynthesis network leading to $^{36}$S is $^{39}$Ar(n , $\\alpha) ^{36}\\!$S. This reaction has never been studied so far, which is due to the fact that $^{39}$Ar is a radioactive (T$_{1/2}$ = 269 y) gas, which is not commercially available. During a three days experimental campaign, an optimized $^{39}$Ar sample was prepared at ISOLDE. A dedicated titaniumoxide target (8 g/cm$^{2}$) was bombarded with 1 GeV protons from the PS Booster. In order to obtain a pure argon beam, a water-cooled transfer line was used to freeze-out less volatile isobars before they can reach the ion source. Adding stable argon with a calibrated leak to the ion source enabled to determine the ionization efficiency (3.5%). For the isotope separation, the low-mass side (GLM) of the General Purpose Separator was used. After magnetic separation, $^{39}$Ar ions (1+) were implanted at 60 keV in a 12 mm thick alumin...

  5. Co-operation agreement. The text of the agreement of 25 May 1998 between the International Atomic Energy Agency and the Brazilian-Argentine Agency for accounting and control of nuclear materials

    International Nuclear Information System (INIS)

    The document reproduces the text of the Co-operation Agreement between the International Atomic Energy Agency and the Brazilian-Argentine Agency for Accounting and Control of Nuclear Materials which entered into force on 25 May 1998

  6. Tectonique Cénozoïque du Haut Plateau de la Puna, Nord Ouest Argentin, Andes Centrales.

    OpenAIRE

    Coutand, Isabelle

    1999-01-01

    Mémoires de Géosciences Rennes, n° 92, 381 p., ISBN: 2-905532-91-2 Les Andes Centrales sont l'exemple type d'une chaîne se développant le long d'une marge active en contexte non collisionel et résultent de la subduction légèrement oblique (-N75°E) de la plaque océanique Nazca sous le continent sud-américain. Elles sont caractérisées par la présence du haut plateau de l'Altiplano-Puna s'étendant depuis le Pérou au Nord jusqu'en Argentine au Sud et présentant une altitude moyenne avoisinant ...

  7. Images and symbols of nuclear energy and environment in Argentine public opinion: the need of a new strategy

    International Nuclear Information System (INIS)

    The need to create in the Argentine public opinion new positives symbols and images on nuclear energy and on the benefits of its peaceful applications, is al present so important as the development of new technical tools to improve the nuclear industry. These positives symbols and imagines on nuclear energy must be created in the framework of a joint strategy of all the country's nuclear institutions as well as other public organizations, in view of the new nuclear plan recently announced. This joint strategy will permit to create not only the new positives symbols and images in the public opinion, but also to obtain the support of the mass media and new spaces for negotiation in the national, provincial and municipal levels. (author)

  8. Secrets, Trauma, and the Memory Market (or the return of the repressed in recent Argentine post-dictatorship cultural production

    Directory of Open Access Journals (Sweden)

    Silvia R Tandeciarz

    2012-04-01

    Full Text Available Since the end of the last Argentine Dictatorship (1976-1983, a number of feature-length films have engaged in the public debate over the legacies of state terrorism. El secreto de sus ojos (2009, Argentina's most recent Oscar winner, is the latest to do so, exploring the effects of more than a decade of impunity on those who lost their loved ones. Suggesting that restoration of a justice system that works can lead to the restoration of full civic engagement in a healthy body politic, the film raises important questions about citizenship and belonging in a post-national era. This essay explores the film's phenomenal success in the global memory market to illuminate what remains at stake in contemporary narratives of reconciliation.

  9. En torno a la desilusión argentina On Argentine disillusionment

    Directory of Open Access Journals (Sweden)

    Andrés Kozel

    2007-12-01

    its emergence with general social and economic processes?; How can we extract the incidents of this idea?; How can we characterize and classify its main expressions?; How can we think about the global meaning of this ideological and political process? The general exposition of the research is focused on showing that the topic of the failure acquired its decisive attributes during the first half of the 20th century, through a complex dynamic, comprised of diverse channels which should be captured in their specificity, although without losing sight of the more general movement of which they form a part: seen globally, this movement contributed to the erosion of an entire ideological-cultural configuration, which I call "argentine illusion". The backdrop of the process was none other than the growing social complexity, the greater and more dissonant discursive diversification (Tulio Halperín and the profound hegemony crisis which the country experienced throughout the period.

  10. Italian and Argentine olive oils: a NMR and gas chromatographic study

    Directory of Open Access Journals (Sweden)

    Segre, Annalaura

    2001-12-01

    Full Text Available High-field Nuclear Magnetic Resonance (NMR spectroscopy and Gas Chromatography (GC were used to analyze 16 monovarietal olive oils obtained from few matched Mediterranean cultivars grown in experimental fields located in Italy and in the Catamarca region of Argentina. The Catamarca region is characterized by extreme pedoclimatic conditions and by a wild spontaneous vegetation. The proposed sampling allows to study the effect of different pedoclimatic conditions on olive oil composition. GC gives the fatty acid profile of olive oil samples. 1H and 13C NMR techniques provide different information: the 1H NMR spectrum allows the measurement of minor components of olive oils such as b-sytosterol, hexanal, trans-2-hexenal, formaldehyde, squalene, cycloartenol and linolenic acid; the 1C NMR spectrum allows to obtain information about glycerol tri-esters of olive oils, i.e., about their acyl composition and positional distribution on glycerol moiety. All the NMR and GC results have been submitted to Linear Discriminant Analysis (LDA and Tree Cluster Analysis (TCA. A careful analysis of the statistical results allows to select the Mediterranean cultivars less affected by the climatic conditions present in the Catamarca region. The selected cultivars produce olive oils which keep their Mediterranean characteristics and which can be proposed as colonizing plants in this wild Argentine region.La espectroscopía de Resonancia Magnética Nuclear de alta resolución (RMN y Cromatografía Gaseosa (CG fueron utilizadas para analizar 16 monovariedades de aceites de oliva, obtenidas de algunos olivares Mediterráneos cultivados contemporáneamente en campos experimentales localizados en Italia y en la región de Catamarca en Argentina. Estas muestras permiten estudiar diferentes condiciones pedoclimáticas en la composición de los aceite de oliva. La CG proporciona el perfil en ácidos grasos de los aceites de oliva y las técnicas RMN 1H y RMN 13C suministran

  11. Structure, composition and metagenomic profile of soil microbiomes associated to agricultural land use and tillage systems in Argentine Pampas.

    Directory of Open Access Journals (Sweden)

    Belén Carbonetto

    Full Text Available Agriculture is facing a major challenge nowadays: to increase crop production for food and energy while preserving ecosystem functioning and soil quality. Argentine Pampas is one of the main world producers of crops and one of the main adopters of conservation agriculture. Changes in soil chemical and physical properties of Pampas soils due to different tillage systems have been deeply studied. Still, not much evidence has been reported on the effects of agricultural practices on Pampas soil microbiomes. The aim of our study was to investigate the effects of agricultural land use on community structure, composition and metabolic profiles on soil microbiomes of Argentine Pampas. We also compared the effects associated to conventional practices with the effects of no-tillage systems. Our results confirmed the impact on microbiome structure and composition due to agricultural practices. The phyla Verrucomicrobia, Plactomycetes, Actinobacteria, and Chloroflexi were more abundant in non cultivated soils while Gemmatimonadetes, Nitrospirae and WS3 were more abundant in cultivated soils. Effects on metabolic metagenomic profiles were also observed. The relative abundance of genes assigned to transcription, protein modification, nucleotide transport and metabolism, wall and membrane biogenesis and intracellular trafficking and secretion were higher in cultivated fertilized soils than in non cultivated soils. We also observed significant differences in microbiome structure and taxonomic composition between soils under conventional and no-tillage systems. Overall, our results suggest that agronomical land use and the type of tillage system have induced microbiomes to shift their life-history strategies. Microbiomes of cultivated fertilized soils (i.e. higher nutrient amendment presented tendencies to copiotrophy while microbiomes of non cultivated homogenous soils appeared to have a more oligotrophic life-style. Additionally, we propose that conventional

  12. Structure, composition and metagenomic profile of soil microbiomes associated to agricultural land use and tillage systems in Argentine Pampas.

    Science.gov (United States)

    Carbonetto, Belén; Rascovan, Nicolás; Álvarez, Roberto; Mentaberry, Alejandro; Vázquez, Martin P

    2014-01-01

    Agriculture is facing a major challenge nowadays: to increase crop production for food and energy while preserving ecosystem functioning and soil quality. Argentine Pampas is one of the main world producers of crops and one of the main adopters of conservation agriculture. Changes in soil chemical and physical properties of Pampas soils due to different tillage systems have been deeply studied. Still, not much evidence has been reported on the effects of agricultural practices on Pampas soil microbiomes. The aim of our study was to investigate the effects of agricultural land use on community structure, composition and metabolic profiles on soil microbiomes of Argentine Pampas. We also compared the effects associated to conventional practices with the effects of no-tillage systems. Our results confirmed the impact on microbiome structure and composition due to agricultural practices. The phyla Verrucomicrobia, Plactomycetes, Actinobacteria, and Chloroflexi were more abundant in non cultivated soils while Gemmatimonadetes, Nitrospirae and WS3 were more abundant in cultivated soils. Effects on metabolic metagenomic profiles were also observed. The relative abundance of genes assigned to transcription, protein modification, nucleotide transport and metabolism, wall and membrane biogenesis and intracellular trafficking and secretion were higher in cultivated fertilized soils than in non cultivated soils. We also observed significant differences in microbiome structure and taxonomic composition between soils under conventional and no-tillage systems. Overall, our results suggest that agronomical land use and the type of tillage system have induced microbiomes to shift their life-history strategies. Microbiomes of cultivated fertilized soils (i.e. higher nutrient amendment) presented tendencies to copiotrophy while microbiomes of non cultivated homogenous soils appeared to have a more oligotrophic life-style. Additionally, we propose that conventional tillage systems may

  13. Technical-economic analysis of the 'Tandem' fuel cycle. A study of the Brazil-Argentine case

    International Nuclear Information System (INIS)

    Advanced fuel cycles, nuclear power reactors, are studied all over the world nowadays, mainly as a way of enhancing the use of nuclear fuel. Such goal is usually decomposed under tree main aspects: environmental, economical and strategic. The Tandem Cycle has demonstrated, under these aspects, to be one of the most promising options among the advanced cycles. This cycle deals, basically, with the reutilization of irradiated ('burned') fuel in PWR type reactors, in CANDU type reactors, as this fuel also contains about 1.5% of fissile material. Brazilian and Argentine nucleoelectric generation options are, coincidentally, in accordance with this option of advanced cycle. This work thus deals with the viability analysis, both technical and economic, of the implementation of a Tandem cycle between the brazilian reactor of Angra-I (PWR) and the argentine reactor of Embalse (CANDU). Tree options of Tandem Cycle have been analysed specifically for the reactors in question. For this analysis, a methodology was developed and a computer program was designed to analyse the technical and economical parts of these options. Besides, countless details have been considered, such as: the influence of actinide elements, test and adjustment of the nuclear data library utilized in the calculations, observation of the safety and control of the CANDU reactor operating on the Tandem Cycle, etc. Given the analyses done, the adoption of the Tandem Cycle-2, in which the fuel irradiated from the PWR is diluted in depleted uranium, was suggested for an occasional implementation of this option of advanced fuel cycle between the reactors of Angra-I and Embalse as a general conclusion of this work. (author)

  14. Insertion of Argentine firms in global value chains not oriented to the mass market: The cases of high-end footwear and the Basso group

    OpenAIRE

    González, Andrea; Hallak, Juan Carlos; Schott, Peter; Genta, Tatiana Soria

    2012-01-01

    This paper describes experiences of international insertion of Argentine producers of manufactured goods not oriented to the mass market. Based on these experiences, we develop a typology of potential alternatives of international insertion for this type of goods centered on the role of local agents in design activities. Our analysis follows the global value chain (GVC) approach and emphasizes the links between local producers and buyers in developed countries. First, we analyze experiences o...

  15. The effects of nitric oxide cooling and the photodissociation of molecular oxygen on the thermosphere/ionosphere system over the Argentine Islands

    OpenAIRE

    G. D. Wells; Rodger, A. S.; Moffett, R. J.; G. J. Bailey; Fuller-Rowell, T. J.

    1997-01-01

    In the past the global, fully coupled, time-dependent mathematical model of the Earth's thermosphere/ionosphere/plasmasphere (CTIP) has been unable to reproduce accurately observed values of the maximum plasma frequency, foF2, at extreme geophysical locations such as the Argentine Islands during the summer solstice where the ionosphere remains in sunlight throughout the day. This is probably because the seasonal dependence of thermospheric cooling by 5.3 µm nitric oxid...

  16. Quantitative determination of guggulsterone in existing natural populations of Commiphora wightii (Arn.) Bhandari for identification of germplasm having higher guggulsterone content.

    Science.gov (United States)

    Kulhari, Alpana; Sheorayan, Arun; Chaudhury, Ashok; Sarkar, Susheel; Kalia, Rajwant K

    2015-01-01

    Guggulsterone is an aromatic steroidal ketonic compound obtained from vertical rein ducts and canals of bark of Commiphora wightii (Arn.) Bhandari (Family - Burseraceae). Owing to its multifarious medicinal and therapeutic values as well as its various other significant bioactivities, guggulsterone has high demand in pharmaceutical, perfumery and incense industries. More and more pharmaceutical and perfumery industries are showing interest in guggulsterone, therefore, there is a need for its quantitative determination in existing natural populations of C. wightii. Identification of elite germplasm having higher guggulsterone content can be multiplied through conventional or biotechnological means. In the present study an effort was made to estimate two isoforms of guggulsterone i.e. E and Z guggulsterone in raw exudates of 75 accessions of C. wightii collected from three states of North-western India viz. Rajasthan (19 districts), Haryana (4 districts) and Gujarat (3 districts). Extracted steroid rich fraction from stem samples was fractionated using reverse-phase preparative High Performance Liquid Chromatography (HPLC) coupled with UV/VIS detector operating at wavelength of 250 nm. HPLC analysis of stem samples of wild as well as cultivated plants showed that the concentration of E and Z isomers as well as total guggulsterone was highest in Rajasthan, as compared to Haryana and Gujarat states. Highest concentration of E guggulsterone (487.45 μg/g) and Z guggulsterone (487.68 μg/g) was found in samples collected from Devikot (Jaisalmer) and Palana (Bikaner) respectively, the two hyper-arid regions of Rajasthan, India. Quantitative assay was presented on the basis of calibration curve obtained from a mixture of standard E and Z guggulsterones with different validatory parameters including linearity, selectivity and specificity, accuracy, auto-injector, flow-rate, recoveries, limit of detection and limit of quantification (as per norms of International

  17. RELACIÓN DE LA EXPRESIÓN DE mARN DE LAS METALOPROTEINASAS 2 Y 9 Y EL INHIBIDOR TIMP-1 EN MOLA HIDATIDIFORME COMPLETA

    Directory of Open Access Journals (Sweden)

    Martha Pinzón

    2008-04-01

    Full Text Available Durante el comienzo de la gestación el factor de crecimiento similar a la insulina tipo II (IGF-II se expresa abundantemente en la placenta y podría regular el comportamiento invasivo de las células trofoblásticas. La habilidad invasiva dependerá también de la capacidad de secretar metaloproteinasas (MMPs, cuya expresión anormal contribuye a varios procesos patológicos. En la Enfermedad Trofoblástica Gestacional (ETG estos factores podrían estar desregulados, así la mola hidatidiforme completa (MHC conduce a la formación del coriocarcinoma, que es un tumor invasivo y metastásico. El objetivo de este estudio fue investigar la relación entre los niveles de mARN de IGF-II, MMP-2, MMP-9 y TIMP-1, por la técnica de RT-PCR, en tejidos de mola hidatidiforme vs. placentas de primer trimestre. La actividad de las MMPs se evaluó usando el ensayo de zimografía, encontrando que en MHC ésta se incrementa, lo cual podría relacionar la malignización del trofoblasto con el incremento en su capacidad invasiva. La expresión elevada de IGF-II en esta patología, también podría estar asociada con el incremento en la actividad de estas MMPs. Una mayor relación entre la expresión de mARNde MMP-9/TIMP-1 en la mola hidatidiforme completa se sugiere como predictor de malignización del tejido trofoblástico.

  18. The effects of heat treatment on physical and technological properties and surface roughness of Camiyani Black Pine (Pinus nigra Arn. subsp. pallasiana var. pallasiana) wood.

    Science.gov (United States)

    Gündüz, Gökhan; Korkut, Süleyman; Korkut, Derya Sevim

    2008-05-01

    Heat treatment is often used to improve the dimensional stability of wood. In this study, the effects of heat treatment on physical properties and surface roughness of Camiyani Black Pine (Pinus nigra Arn. subsp. pallasiana var. pallasiana) wood were examined. Samples obtained from Yenice-Zonguldak Forest Enterprises, Turkey, were subjected to heat treatment at varying temperatures and for varying durations. The physical properties of heat-treated and control samples were tested, and oven-dry density, air-dry density, and swelling properties were determined. The mechanical properties of heat-treated and control samples were tested, and compression strength, and Janka-hardness were determined. A stylus method was employed to evaluate the surface characteristics of the samples. Roughness measurements by the stylus method were made in the direction perpendicular to the fiber. Four main roughness parameters, mean arithmetic deviation of profile (Ra), mean peak-to-valley height (Rz), root mean square roughness (Rq), and maximum roughness (Ry) obtained from the surface of wood were used to evaluate the effect of heat treatment on the surface characteristics of the specimens. Significant difference was determined (p=0.05) between physical and technological properties, and surface roughness parameters (Ra, Rz, Ry, Rq) for three temperatures and three durations of heat treatment. Based on the findings in this study, the results showed that density, swelling, compression strength, Janka-hardness and surface roughness values decreased with increasing treatment temperature and treatment times. Increase in temperature and duration further diminished technological strength values of the wood specimens. Camiyani Black Pine wood could be utilized by using proper heat treatment techniques without any losses in strength values in areas where working, stability, and surface smoothness, such as in window frames, are important factors.

  19. Genetic Diversity of Pinus nigra Arn. Populations in Southern Spain and Northern Morocco Revealed By Inter-Simple Sequence Repeat Profiles

    Directory of Open Access Journals (Sweden)

    Oussama Ahrazem

    2012-05-01

    Full Text Available Eight Pinus nigra Arn. populations from Southern Spain and Northern Morocco were examined using inter-simple sequence repeat markers to characterize the genetic variability amongst populations. Pair-wise population genetic distance ranged from 0.031 to 0.283, with a mean of 0.150 between populations. The highest inter-population average distance was between PaCU from Cuenca and YeCA from Cazorla, while the lowest distance was between TaMO from Morocco and MA Sierra Mágina populations. Analysis of molecular variance (AMOVA and Nei’s genetic diversity analyses revealed higher genetic variation within the same population than among different populations. Genetic differentiation (Gst was 0.233. Cuenca showed the highest Nei’s genetic diversity followed by the Moroccan region, Sierra Mágina, and Cazorla region. However, clustering of populations was not in accordance with their geographical locations. Principal component analysis showed the presence of two major groups—Group 1 contained all populations from Cuenca while Group 2 contained populations from Cazorla, Sierra Mágina and Morocco—while Bayesian analysis revealed the presence of three clusters. The low genetic diversity observed in PaCU and YeCA is probably a consequence of inappropriate management since no estimation of genetic variability was performed before the silvicultural treatments. Data indicates that the inter-simple sequence repeat (ISSR method is sufficiently informative and powerful to assess genetic variability among populations of P. nigra.

  20. Argentine activities related to the development of low enriched fuel elements

    International Nuclear Information System (INIS)

    Within the framework of the RERTR Program and supported by the technical cooperation work agreed upon between the U.S.A. and Argentina in May 1979, the CNEA Nuclear Fuel Department - Low Enriched Fuel Elements Project (ECBE Project), has carried on its own program for developing fuels with low enrichment for research and test reactors. Up to the present, its main objective has been to replace the highly enriched fuel used in its only reactor (RA-3) for research, development and radioisotopes production. The basic stages of the Argentine Program are shown in Table 1. At a meeting held in Vienna in March, 1980, the CNEA stated that its development of fuels with low enrichment would be in two fuel lines: UAlx-Al and U3O8-Al, and that its aim would be to reach uranium densities of 18-2.2 g/cm3 for the UAIx-Al line and 2.4-3.0 g/cm3 for the U3O8 line. At the international meeting held at ANL in November, 1980, and after having received depleted uranium and uranium with 20% and 45% enrichment (purchased from the U.S.A. for manufacturing miniplates and possible standard fuels) to carry on the proposed development, CNEA anticipated -- after its first tests -- that the conditions were satisfactory for reaching uranium densities of 2.4-3.0 g/cm3 in U3O8-Al fuel and of 2.4 g/cm3 in UAIx-Al fuel. In February 1981, after Argentina accepted the obligation of paying for the irradiation service, authorization was obtained for irradiating miniplates in the Oak Ridge Reactor within the RERTR Program. In June 1981, the first set of miniplates was sent to Oak Ridge National Laboratory (ORNL). The maximum actual densities reached at that time were 3.12 g/cm3 with U3O8-Al and 2.52 g/cm3 with UAlx-Al. During a visit of the CNEA Project Technical Manager to the Argonne National Laboratory (ANL) in July 1981, and after exchanging ideas with ANL professional staff, the CNEA decided to incorporate a new line of development, that of U3Si-Al. Three months later, in October 1981 a second set of

  1. Cultivo de callos in vitro a partir de las hojas de Jodina rhombifolia Hook. & Arn. (Reissek) para obtención de C-glicosilflavonas

    OpenAIRE

    Caraballo de la Peña, Diana

    2015-01-01

    La especie Jodina rhombifolia Hook et Arn. (Reissek), popularmente conocida como “Sombra de Toro”, es un árbol de hasta 8 -10 m de altura con propiedades medicinales, el cual crece exclusivamente en América del Sur. Las hojas de la especie son comúnmente empleadas para el tratamiento de úlceras, asma, problemas gastrointestinales, antialcohólico, entre otros. Sin embargo, esta especie actualmente se encuentra en peligro de extinción en Brasil. Con el objetivo de obtener los principios acti...

  2. Clinical observation the effects of combination application of salvia miltiorrhiza and acyclovir (ACV) on acute retinal necrosis (ARN)%丹参、无环鸟苷联合治疗急性视网膜坏死

    Institute of Scientific and Technical Information of China (English)

    蒋美峰; 方春庭

    2000-01-01

    目的:为了探讨急性视网膜坏死(acute retinal necrosis,ARN)的有效疗法.方法:对6例(8只眼)ARN患者采用丹参、无环鸟苷(acyclovir,ACV)联合治疗.结果:随访6~18个月,7只眼视力有不同程度提高,视力提高达88.8%.结论:丹参、ACV联合应用是治疗ARN的一种有效方法.

  3. Detección de ARN-VHC en saliva de pacientes infectados con VIH y hepatitis C crónica. Patrones de aclaramiento viral tras la administración de interferón pegilado y ribavirina

    OpenAIRE

    Eirea Arcos, Miriam

    2013-01-01

    Fundamento. El diagnóstico de hepatitis crónica por VHC en pacientes sin factores identificables de riesgo parenteral, permite especular sobre la existencia de otras vías de transmisión. Aplicando técnicas de biología molecular se ha demostrado la presencia de ARN-VHC en muestras de saliva de estos pacientes, por lo que se ha sugerido que este fluido podría constituir un vehículo potencial de infección. En los pacientes monoinfectados por el VHC se ha descrito un único factor predictor de la ...

  4. AMOUNT OF NITROGEN AND ORGANIC CARBON IN SOIL AND NITROGEN AND ORGANIC MATTER IN FOREST FLOOR OF BLACK PINE (Pinus nigra Arn. supsp. pallasiana (Lamb.) Holmboe) STANDS DEVELOPED IN GOLCUK (ISPARTA)

    OpenAIRE

    Karatepe, Yasin

    2009-01-01

    In this study, total N (Nt) and organic C of soils; and total N and organic matter of forest floor were compared in black pine (Pinus nigra Arn. supsp. pallasiana (Lamb.) Holmboe) stands developed on four different growing sites in Golcuk, Isparta. Average of total N reserves was greatest in soils on andesite parent material (8.568 ton/ha) while it was lowest in soils on Golcuk Formation (0.614 ton/ha). Average of organic carbon reserves was greatest in soils on andesite parent material (79.0...

  5. Comparative leaf anatomy in argentine Galactia species Anatomía comparada de hoja en especies argentinas de Galactia

    Directory of Open Access Journals (Sweden)

    G. M. Tourn

    2009-07-01

    Full Text Available A comparative study of anatomical characters of the leaves of argentine species of Genera Galactia was carried out in order to evaluate their potential value in Taxonomy. In Argentine 14 species and some varieties from Sections Odonia and Collaearia can be found. Section Odonia: G. benthamiana Mich., G. dubia DC., G. fiebrigiana Burkart var. correntina Burkart, G. glaucophylla Harms, G. gracillima Benth., G. latisiliqua Desv., G. longifolia (Jacq. Benth., G. marginalis Benth., G. striata (Jacq. Urban, G. martioides Burkart, G. neesi D. C. var. australis Malme, G. pretiosa Burkart var. pretiosa, G. texana (Scheele A. Gray and G. boavista (Vell. Burkart from Section Collaearia. The characterization of sections is mainly based on reproductive characters, vegetative ones (exomorphological aspects are scarcely considered. The present paper provides a description of anatomical characters of leaves in argentine species of Galactia. Some of them, may have diagnostic value in taxonomic treatment. Special emphasis is placed on the systematic significance of the midvein structure. The aim of the present study, covering 10 species (named in bold, is a to add more data of leaf anatomy characters, thus b to evaluate the systematic relevance and/ or ecological significance.Se realizó un estudio comparativo de la anatomía foliar de especies argentinas del género Galactia (Fabaceae, a fin de evaluar su potencial en taxonomía. En la Argentina se reconocen 14 especies (con algunas variedades, 13 de la sección Odonia -G. benthamiana Mich., G. fiebrigiana Burkart var. correntina Burkart , G. gracillima Benth., G. latisiliqua Desv., G. marginalis Benth., G. striata (Jacq. Urban y G. texana (Scheele A. Gray, G. dubia DC., G. glaucophylla Harms, G. longifolia (Jacq. Benth., G. martioides Burkart, G. neesi DC. var. australis Malme, G. pretiosa Burkart var. Pretiosa- y G. boavista (Vell. Burkart de la sección Collaearia (Burkart, 1971. Los estudios se realizaron en

  6. Using Landsat satellite imagery to detect small-size forest stands of Pinus nigra Arn. and Pinus sylvestris L. affected by Scolytidae; Uso de imagenes satelite Landsat para la deteccion de rodales de Pinus nigra Arn. y Pinus sylvestris L. afectados por escolitidos

    Energy Technology Data Exchange (ETDEWEB)

    Blanco, E.; Bonet, J. A.; Eizaguirre, M.

    2009-07-01

    Medium resolution images from multispectral sensors like Landsat TM have been extensively used for decades in order to identify decline and defoliation generated by insects and other forest pests. The present work analyses the usefulness of these kinds of images to detect small-size stands of Pinus nigra Arn. and Pinus sylvestris L. affected by Scolytidae attacks. The study area was located in the Solsones region (Eastern Pyrenees), selecting 34 training zones (17 damaged small-size stands and 17 healthy small-size stands). The exploratory analysis of the images was conducted with the ERDAS IMAGINE 8.x. program.The results of the study showed significant differences between the affected and non-affected stands in 5 of the 7 spectral bands analysed. TM5 and TM7 bands were identified as those having the highest power to detect damaged stands. The digital levels obtained and the spaces of characteristics created, both showed trends to group small-size affected stands versus healthy, achieving improvements in the methodological procedure employed. (Author) 31 refs.

  7. Reconciling tectonic shortening, sedimentation and spatial patterns of erosion from 10Be paleo-erosion rates in the Argentine Precordillera

    Science.gov (United States)

    Val, Pedro; Hoke, Gregory D.; Fosdick, Julie C.; Wittmann, Hella

    2016-09-01

    The temporal evolution of erosion over million-year timescales is key to understand the development of mountain ranges and adjacent fold-and-thrust belts. While models of orogenic wedge dynamics predict an instantaneous response of erosion to pulses of rock uplift, stream-power based models predict that catchment-wide erosion maxima significantly lag behind a pulse of rock uplift. Here, we explore the relationships between rock uplift, erosion, and sediment deposition in the Argentine Precordillera fold-and-thrust belt at 30°S. Using a combination of 10Be-derived paleo-erosion rates, constraints on re-exposure using 26Al/10Be ratios, geomorphic observations and detrital zircon provenance, we demonstrate that the attainment of maximum upland erosion rates lags the maximum rate of deformation over million-year timescales. The magnitudes and causes of the erosional delays shed new light on the catchment erosional response to tectonic deformation and rock uplift in orogenic wedges.

  8. Les corps disparus. La fictionnalisation de la guerre sale dans l’Argentine de la dictature militaire (1976-1983

    Directory of Open Access Journals (Sweden)

    Jordi Bonells

    2012-08-01

    Full Text Available À travers l’analyse de certains romans en langue espagnole sur la dictature militaire en Argentine (1976-1983, l’auteur aborde la question de la disparition comme réalité historique et comme thème littéraire à travers une double approche : analyser l’intentionnalité qui porte ces récits sur le « Proceso » ; rendre compte des mécanismes qui régissent ce que l’on peut appeler la « mise en dictature du roman ».A través del análisis de algunas novelas en lengua española sobre la dictadura militar en Argentina (1976-1983, el autor aborda la cuestión de la desaparición como realidad histórica y como tema literario a partir de un doble enfoque: analizar la intencionalidad subyacente de dichos relatos sobre el Proceso; dar cuenta de los mecanismos que regulan lo que podemos denominar «la novela en dictadura».

  9. Relationship Between Beak Morphological Variables and Body Size and Mantle Length of Male and Female Argentine Shortfin Squid (Illex argentinus)

    Institute of Scientific and Technical Information of China (English)

    CHEN Xinjun; LU Huajie; LIU Bilin; FANG Zhou

    2012-01-01

    Beak of cephalopod is an important hard tissue.Understanding the morphology of beak can yield critical information on the role of cephalopods in the ecosystem.The south patagonic stock of the Argentine shortfin squid,Illex argentinus,is not only one of the most important fishing targets,but also one of the most important species in the marine eco-system of the southwest Atlantic.A total of 430 samples of I.argentinus,including 229 females 103-346mm in mantle length (ML) and 201males 140-298mm in ML,were collected from the area off the Exclusive Economic Zone of Argentinean waters by Chinese squid jigging vessels during February to May 2007.The morphology of their beaks was evaluated.The relationships between beak morphological variables and ML differed significantly among males and females.They could be best described by logarithmic functions for females and linear functions for males except for upper wing length (UWL) and lower rostrum length (LRL),which followed exponential functions in their relationships with ML.The results showed the sexual dimorphism in the relationship between ML and beak morphology for the south patagonic stock of I.argentinus.However,no significant difference was found between males and females in the relationships of beak morphological variables (except for UWL) versus body weight (BW),suggesting that the relationship between beak morphological variables and BW can be used for estimating the biomass consumed by their predators.

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

    Directory of Open Access Journals (Sweden)

    Soledad Molares

    2012-01-01

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

  11. Prevalence and evolution of helmet use in motorcycle riders in an Argentine city (Mar del Plata, 2006-2014

    Directory of Open Access Journals (Sweden)

    Jeremías David Tosi

    2016-03-01

    Full Text Available Traffic collisions involving motorcyclists are a growing problem in low and middle income countries. Helmet use is the foremost protective measure for this group of road users, however many riders do not wear them. The objective of the present study is to report the changes in helmet use during the period 2006-2014 in an Argentine city and discover associated factors for the year 2014. The sample includes more than 6,900 observations of motorcyclists carried out during the years 2006 (n=962, 2008 (n=977, 2012 (n=2,542, and 2014 (n=2,466. The data indicates a progressive increase in helmet use over time, but differences due to gender and type of rider remain. Factors associated to helmet use in motorcycle drivers during 2014 were: passenger helmet use, motorcycle type, license plate use and gender. Although the results are positive, it is necessary to be attentive to the negative consequences of the growing fleet of motorcycles.

  12. Dichrostachys cinerea (L. Wight et Arn (Mimosaceae hydro-alcoholic extract action on the contractility of tracheal smooth muscle isolated from guinea-pig

    Directory of Open Access Journals (Sweden)

    Datté Jacques Y

    2011-03-01

    Full Text Available Abstract Background Dichrostachys cinerea (L. Wight et Arn. (Mimosaceae is largely used in ethno-medically across Africa, and mainly employed for the treatment of asthma in Ivory Coast and Gabon. The paper analyses the relaxation induced by the methanolic extract of D. cinerea (Edici in the guinea-pig trachea preparations (GPTPs. Purpose: This study aimed to bring out the scientific basis to the use of this plant leading to the validation of this phytomedicine. Method The aorta obtained from guinea-pigs was immediately placed in a Mac Ewen solution. Experiments were performed in preparations suspended between two L-shaped stainless steel hooks in a 10 ml organ bath containing Mac Ewen solution. The isometric contractile force of the aorta strips of guinea-pig were recorded by using a strain gauge. The different drugs were directly administered into the organ bath and the magnitude of GPTPs was evaluated. Results Phytochemical analysis of the methanolic extract of Dichrostachys cinerea (Edici using chemical methods revealed the presence of flavenoids, tannins, sterols, triterpenes and polyphenols. Pharmacological studies performed in GPTPs show that of Dichrostachys cinerea (0.1 mg/ml - 2 mg/ml evoked a broncho-constriction in GPTPs. Whereas, at concentration up to 2 mg/ml, Edici induced a significant dose-dependent relaxation in the GPTPs. KCl-, ACh- or histamine-evoked contractions of isolated trachea was significantly inhibited by increasing concentrations of Edici (3.5-10 mg/ml. Edici (10 mg/ml as well as promethazine (0.25 mg/ml significantly inhibited contractions induced by increasing concentrations of histamine (1×10-7-1×10-4mg/ml. In the presence of atropine at a concentration of 10-6mg/ml, contractile response curve (CRC evoked by ACh (1×10-5-1×10-2 mg/ml was significantly abolished in concentration-dependent manner. Edici did not significantly reduced ACh evoked contraction (10-5-10-2mg/ml. Conclusion These observations suggest

  13. THE EXPRESSION OF TGF-β1 mRNA IN THE HYPOTHALAMIC ARN OF RAT WITH MSG-LIVER REGENERATION USING IN SITU HYBRIDIZATION%Dig标记探针原位杂交检测MSG-肝再生-大鼠下丘脑弓状核TGF-β1mRNA

    Institute of Scientific and Technical Information of China (English)

    杨木兰; 李瀚旻; 梅家俊; 张六通; 邱幸凡

    2002-01-01

    目的通过建立MSG-肝再生-大鼠模型,检测MSG-肝再生-大鼠下丘脑弓状核(ARN)TGF-β1 mRNA的表达与神经内分泌免疫网络的关系.方法用肝大部分切除MSG-大鼠的方法建立MSG-肝再生-大鼠模型,原位杂交技术检测MSG-肝再生-大鼠下丘脑弓状核(ARN)TGF-β1 mRNA的表达.结果发现MSG-肝再生-大鼠ARN TGF-β1mRNA的表达显著上调,切除11天达20.9±1.6,与生理盐水组(11.1±1.2)和MSG-大鼠假手术组(15.2±1.1)比较,差异显著(P<0.01).结论 MSG-肝再生-大鼠神经-内分泌-免疫网络功能紊乱与其ARN TGF-β1 mRNA表达失调密切相关.

  14. ARGOS PHWR 380. Argentine offer of a safer pressurized heavy-water reactor of 380 MW. '...a many-eyed guardian...' concerned about nuclear power plant safety

    International Nuclear Information System (INIS)

    Reactor vendors in most countries have had lean pickings for the past decade, and ordering seems unlikely to show much growth until the shock wave from the Chernobyl accident has died away. Paradoxically, however, at least one firm sees a niche in the market. ENACE - the Empresa Nuclear Argentina de Centrales Electricas, or Argentine Nuclear Power Plant Corporation - is stepping out into the market place with a newly-designed 380 MWe nuclear power plant. The plant is equipped with a pressurized heavy-water reactor of the pressure vessel type (PHWR). ENACE has adopted new boundary design conditions and has embodied a number of special features to assure safety and economy in operation. The major shareholder in ENACE is the Argentine National Atomic Energy Commission (CNEA). ENACE is the architect-engineer for the NPP projects of the Argentine nuclear programme. It has a licensing agreement with Siemens AG's Kraftwerk Union AG, which is its minor shareholder. Under this agreement, ENACE has the right to use the Siemens-KWU PHWR technology, which was originally developed for the MZFR reactor in the Federal Republic of Germany, as well as their know-how in pressurized (light-) water reactors (PWRs) design and construction. The CNEA also has agreements with Atomic Energy of Canada Ltd. for the transfer of technology related to CANDU-type PTHWRs. The CNEA and ENACE have acquired considerable practical experience from the construction and operation of the 367 MWe Atucha I PHWR and the 648 MWe Embalse PTHWR; ENACE is currently building Argentina's third nuclear power plant, Atucha II, a 745 MWe PHWR. (author)

  15. Cincuentenario de la Asociación Argentina de Dermatología: (1907-1957 Fiftieth anniversary of the Argentine Association of Dermatology: (1907-1957

    Directory of Open Access Journals (Sweden)

    J. L. Iribas

    2007-09-01

    Full Text Available Transcurrimos en el año del Centenario de la Asociación Argentina de Dermatología, con la intención de comprender cabalmente ese momento. Hallamos en su historia hechos trascendentes, que nos muestran el camino recorrido y nos orientan hacia la concreción de objetivos, en pro del engrandecimiento de la entidad como tal. La revisión del Cincuentenario Institucional, a través de la lectura del acto oficial y evento científico, que se acompañó con la presencia de un número importante de médicos, representativo de la Medicina y Dermatología Argentina, nos nutre de información, estimula a la revisión histórica e invita a trabajar por la vigencia y consolidación del patrimonio cultural-educativo de nuestro país con proyección internacional, que concentra la Asociación Argentina de Dermatología.We go through the year of the Anniversary of the Argentine Association of Dermatology with the intention of fully understanding this moment. Therefore, we have looked for important facts in its history, which show us the distance covered and guide us through the realization of goals, which exalt the institution as such. Through the reading of the first official ceremony and the scientific event which accompanied it -which was full of several important physicians representing Argentine foreign Medicine and Dermatology-, the review of the Fiftieth Institutional Anniversary nurtures us with information and stimulates us to work for the validity and consolidation of the educational and cultural heritage of our country that constitutes the Argentine Association of Dermatology.

  16. Kiired ajad koolitustegevuses / Arne Sirel

    Index Scriptorium Estoniae

    Sirel, Arne

    2005-01-01

    Piirivalve õppejaoskonna eestvõttel koostöös USA suursaatkonnaga korraldati Muraste piirivalvekoolis ressursside planeerimise kursus, koolitajad olid USA-st. Belgia Föderaalpolitsei esindaja Tony Mounton koolitas piirivalvureid Schengen Facility programmi raames

  17. Etnobotánica, anatomía y caracterización físico-química del aceite esencial de Baccharis obovata Hook. et Arn. (Asteraceae: Astereae Ethnobotany, anatomy and physicochemical characterization of essential oil of Baccharis obovata Hook. et Arn. (Asteraceae: Astereae

    Directory of Open Access Journals (Sweden)

    Soledad Molares

    2009-06-01

    Full Text Available Baccharis obovata Hook. et Arn. es una especie aromática conocida como "wautro", y forma parte destacada de la herbolaria Mapuche de la Patagonia Argentina. Los objetivos fueron investigar la etnobotánica, la anatomía del vástago, y caracterizar físicoquímicamente el aceite esencial presente en el mismo. Se realizaron entrevistas a pobladores de dos comunidades Mapuches del noroeste de la Patagonia Argentina, y se colectó material vegetal para su observación al microscopio óptico y de barrido ambiental, como así también, para la hidrodestilación del aceite esencial. Los informantes indicaron que la planta es utilizada en forma consensuada para el tratamiento de alopecia, caspa, diversas dermatitis, y cefaleas. Las principales características de la hoja son: mesofilo isobilateral, estomas anomocíticos, tricomas glandulares pluricelulares, y cavidades esquizógenas secretoras de aceites esenciales. El tallo primario presenta tricomas y cavidades secretoras semejantes a los de las hojas, colénquima en las costillas, clorénquima en los valles interrumpido por espacios de aire, cilindro vascular continuo, endodermis uniseriada y por sectores biseriada, esclerénquima discontinuo, y cristales aciculares en células periféricas de médula. Las determinaciones físico-químicas que se aportan son rendimiento medio anual, tiempo óptimo de destilación, densidad relativa, rotación específica e índice de refracción. B. obovata es una especie cosmecéutica de interés, este trabajo contribuye a su conocimiento general, aportando información para futuras tareas de control de calidad y para su conservación biocultural.Baccharis obovata Hook. et Arn. is an aromatic species known as "wautro", and is an important part of the Mapuche herbolarium of Patagonia Argentina. The objectives were to investigate its ethnobotany and shoot anatomy, as well as to characterize physically and chemically its essential oil. Rural informant-interviews were

  18. Preservation of primary information related to radiological protection and nuclear safety in the Argentine Nuclear Regulatory Authority

    International Nuclear Information System (INIS)

    The preservation of primary information related to Radiological Protection and Nuclear Safety in the Argentine Nuclear Regulatory Authority began as a need of and as significant contribution to the future activities of the institution. Since 2005 a high number of experts have retired from the organization and will continue to do so until 2010. Besides, the primary information that experts possess is technical information produced at the beginning of Argentina's regulatory activity in the 50 's. If this information on account of its relevance - could not be preserved properly or be made available to the future generation of scientists and technicians, such an issue could have a negative impact on the efficiency and effectiveness of the institution in the future. The methodology selected for the project comprises several stages. Overall, the first stage consists in identifying primary information and expert's explicit knowledge through interviews and personal consultations. The second stage consists in converting to digital format the documentation that experts have traditionally kept in paper format. The third stage deals with transferring to a new database the already digitalized information from the computers of experts who are about to retire. The final stage is based on managing this information by creating knowledge maps and socio-grams, experts personal Web sites and a database with a mega browser to make information readily accessible. During the early months of the project, 190 pages have on average been converted to digital format on a daily basis, the equivalent of around 8 MB of information. The men/hours employed for this task has been around 40 minutes per day. As time went by, the method turned more efficient and as a result, some 400 pages were converted to digital format on a daily basis, accounting for 16 MB of information. The men/hours employed for this task has been around 60 minutes per day. Up until mid 2008, more than 1,000 documents have been

  19. Decision theories used in planning of areas around La Colacha basin in Córdoba (Argentine) considering natural and human hazards

    OpenAIRE

    Antón Corrales, José Manuel; Grau Olive, Juan Bautista; Tarquis Alfonso, Ana Maria; Cisneros, J M; Andina de la Fuente, Diego

    2010-01-01

    The authors of U.P.M. have had relations with Argentine Universities and Administrations, in part with J.M.Cisneros that is Professor at Universidad Nacional de Rio Cuarto in Prov. de Córdoba Arg., and have applied Decision Theories with Mathematic tools for the planning of defences and uses of soils in these areas and especially of La Colacha bassin enlarged with larger areas around it as “Cuenca de los Arroyos Menores” at West and South of Rio Cuarto. These large flat lands have loess soils ...

  20. Favipiravir (T-705 inhibits Junin virus infection and reduces mortality in a guinea pig model of Argentine hemorrhagic fever.

    Directory of Open Access Journals (Sweden)

    Brian B Gowen

    Full Text Available BACKGROUND: Junín virus (JUNV, the etiologic agent of Argentine hemorrhagic fever (AHF, is classified by the NIAID and CDC as a Category A priority pathogen. Presently, antiviral therapy for AHF is limited to immune plasma, which is readily available only in the endemic regions of Argentina. T-705 (favipiravir is a broadly active small molecule RNA-dependent RNA polymerase inhibitor presently in clinical evaluation for the treatment of influenza. We have previously reported on the in vitro activity of favipiravir against several strains of JUNV and other pathogenic New World arenaviruses. METHODOLOGY/PRINCIPAL FINDINGS: To evaluate the efficacy of favipiravir in vivo, guinea pigs were challenged with the pathogenic Romero strain of JUNV, and then treated twice daily for two weeks with oral or intraperitoneal (i.p. favipiravir (300 mg/kg/day starting 1-2 days post-infection. Although only 20% of animals treated orally with favipiravir survived the lethal challenge dose, those that succumbed survived considerably longer than guinea pigs treated with placebo. Consistent with pharmacokinetic analysis that showed greater plasma levels of favipiravir in animals dosed by i.p. injection, i.p. treatment resulted in a substantially higher level of protection (78% survival. Survival in guinea pigs treated with ribavirin was in the range of 33-40%. Favipiravir treatment resulted in undetectable levels of serum and tissue viral titers and prevented the prominent thrombocytopenia and leucopenia observed in placebo-treated animals during the acute phase of infection. CONCLUSIONS/SIGNIFICANCE: The remarkable protection afforded by i.p. favipiravir intervention beginning 2 days after challenge is the highest ever reported for a small molecule antiviral in the difficult to treat guinea pig JUNV challenge model. These findings support the continued development of favipiravir as a promising antiviral against JUNV and other related arenaviruses.

  1. Selection and characterization of Argentine isolates of Trichoderma harzianum for effective biocontrol of Septoria leaf blotch of wheat.

    Science.gov (United States)

    Stocco, Marina C; Mónaco, Cecilia I; Abramoff, Cecilia; Lampugnani, Gladys; Salerno, Graciela; Kripelz, Natalia; Cordo, Cristina A; Consolo, Verónica F

    2016-03-01

    Species of the genus Trichoderma are economically important as biocontrol agents, serving as a potential alternative to chemical control. The applicability of Trichoderma isolates to different ecozones will depend on the behavior of the strains selected from each zone. The present study was undertaken to isolate biocontrol populations of Trichoderma spp. from the Argentine wheat regions and to select and characterize the best strains of Trichoderma harzianum by means of molecular techniques. A total of 84 out of the 240 strains of Trichoderma were able to reduce the disease severity of the leaf blotch of wheat. Thirty-seven strains were selected for the reduction equal to or greater than 50% of the severity, compared with the control. The percentage values of reduction of the pycnidial coverage ranged between 45 and 80%. The same last strains were confirmed as T. harzianum by polymerase chain reaction amplification of internal transcribed spacers, followed by sequencing. Inter-simple sequence repeat was used to examine the genetic variability among isolates. This resulted in a total of 132 bands. Further numerical analysis revealed 19 haplotypes, grouped in three clusters (I, II, III). Shared strains, with different geographical origins and isolated in different years, were observed within each cluster. The origin of the isolates and the genetic group were partially related. All isolates from Paraná were in cluster I, all isolates from Lobería were in cluster II, and all isolates from Pergamino and Santa Fe were in cluster III. Our results suggest that the 37 native strains of T. harzianum are important in biocontrol programs and could be advantageous for the preparation of biopesticides adapted to the agroecological conditions of wheat culture.

  2. Faulting and erosion in the Argentine Precordillera during changes in subduction regime: Reconciling bedrock cooling and detrital records

    Science.gov (United States)

    Fosdick, Julie C.; Carrapa, Barbara; Ortíz, Gustavo

    2015-12-01

    The Argentine Precordillera is an archetypal retroarc fold-and-thrust belt that records tectonics associated with changing subduction regimes. The interactions between exhumation and faulting in the Precordillera were investigated using apatite and zircon (U-Th-Sm)/He and apatite fission track thermochronometry from the Precordillera and adjacent geologic domains. Inverse modeling of thermal histories constrains eastward in-sequence rock cooling associated with deformation and erosion from 18 to 2 Ma across the Central Precordillera tracking thrusting during this time. The youngest AHe ages (5-2 Ma) and highest erosion rates are located in the eastern and western extremities of the Precordillera and indicate that recent denudation is concentrated at its structural boundaries. Moreover, synchronous rapid Pliocene cooling of the Frontal Cordillera, Eastern Precordillera, and Sierra del Valle Fértil was coeval with initiation of basement-involved faulting in the foreland. Detrital zircon U-Pb geochronology from the ca. 16-8.1 Ma Bermejo foreland basin strata suggests fluvial connectivity westward beyond the Frontal Cordillera to the Main Cordillera and Coast Range followed by an important shift in sediment provenance at ca. 10 Ma. At this time, we suggest that a substantial decrease in Permo-Triassic igneous sources in the Frontal Cordillera and concurrent increase in recycled zircons signatures of Paleozoic strata are best explained by uplift and erosion of the Precordillera during widening of the thrust-belt. Bedrock thermochronology and modeling indicate a 2-6 Myr lag time between faulting-related cooling in the hinterland and the detrital record of deformation in the foreland basin, suggesting that for tectonically active semi-arid settings, bedrock cooling may be more sensitive to onset of faulting. We suggest that high erosion rates in the Frontal Cordillera and Eastern Precordillera are associated with increased interplate coupling during shallowing of the

  3. Influence of weeds on Argentine ant (Hymenoptera: Formicidae) and obscure mealybug (Hemiptera: Pseudococcidae) in a central California vineyard.

    Science.gov (United States)

    Costello, Michael J; Welch, Mark D

    2014-06-01

    Obscure mealybug is a pest of grapes in the cool climate regions of coastal California, is found on some vineyard weeds, and is tended by the Argentine ant. A study was conducted at a vineyard in Arroyo Grande, CA, to evaluate the impact of weeds on ant activity on grapevines, and the role that ants and weeds have on obscure mealybug infestation in grape clusters. The incidence of the fungus Botrytis cinerea was recorded as well. Treatments were weed exclusion versus the presence of weeds, and ant exclusion versus the presence of ants. Ant activity was evaluated weekly using sugar-based monitoring stations, and mealybug infestation and Botrytis incidence of clusters were evaluated at harvest. Ant exclusion reduced the overall number of ant visits by 82%, and ants increased mealybug infestation of clusters by 53%. Ant activity was 33% higher in the weeds treatment, but there was no impact of weeds on mealybug infestation. We suggest that the higher ant activity recorded in the weeds treatment may have been an artifact of the sugar-based sampling method. Botrytis incidence was three times higher with ants, but did not differ between weeds and weed exclusion treatments. The study supports other research showing a relationship between mealybug infestation and the presence of ants, as well as the lack of impact of floor vegetation on mealybug infestation of grape clusters. It is the first report of a relationship between ants and Botrytis, although it is more likely that the higher Botrytis incidence found here is a result of increased mealybug density than a direct effect by ants.

  4. Selection and characterization of Argentine isolates of Trichoderma harzianum for effective biocontrol of Septoria leaf blotch of wheat.

    Science.gov (United States)

    Stocco, Marina C; Mónaco, Cecilia I; Abramoff, Cecilia; Lampugnani, Gladys; Salerno, Graciela; Kripelz, Natalia; Cordo, Cristina A; Consolo, Verónica F

    2016-03-01

    Species of the genus Trichoderma are economically important as biocontrol agents, serving as a potential alternative to chemical control. The applicability of Trichoderma isolates to different ecozones will depend on the behavior of the strains selected from each zone. The present study was undertaken to isolate biocontrol populations of Trichoderma spp. from the Argentine wheat regions and to select and characterize the best strains of Trichoderma harzianum by means of molecular techniques. A total of 84 out of the 240 strains of Trichoderma were able to reduce the disease severity of the leaf blotch of wheat. Thirty-seven strains were selected for the reduction equal to or greater than 50% of the severity, compared with the control. The percentage values of reduction of the pycnidial coverage ranged between 45 and 80%. The same last strains were confirmed as T. harzianum by polymerase chain reaction amplification of internal transcribed spacers, followed by sequencing. Inter-simple sequence repeat was used to examine the genetic variability among isolates. This resulted in a total of 132 bands. Further numerical analysis revealed 19 haplotypes, grouped in three clusters (I, II, III). Shared strains, with different geographical origins and isolated in different years, were observed within each cluster. The origin of the isolates and the genetic group were partially related. All isolates from Paraná were in cluster I, all isolates from Lobería were in cluster II, and all isolates from Pergamino and Santa Fe were in cluster III. Our results suggest that the 37 native strains of T. harzianum are important in biocontrol programs and could be advantageous for the preparation of biopesticides adapted to the agroecological conditions of wheat culture. PMID:26873560

  5. Invasive breast cancer in Argentine women: association between risk and prognostic factors with antigens of a peptidic and carbohydrate nature

    Directory of Open Access Journals (Sweden)

    Croce MV

    2011-12-01

    Full Text Available Sandra O Demichelis, Marina T Isla-Larrain, Luciano Cermignani, Cecilio G Alberdi, Amada Segal-Eiras, María Virginia CroceCentre of Basic and Applied Immunological Research, Faculty of Medical Sciences, National University of La Plata, La Plata, ArgentinaObjective: In breast cancer, several tumor markers have been identified. The marker most extensively associated with breast cancer is MUC1. The objective of the study was to analyze prognostic and risk factors in relation to tumor markers in order to clarify breast cancer biology. A total of 349 primary tumor samples and lymph nodes from breast cancer patients were studied. Risk and prognostic factors were considered. An immunohistochemical approach was applied and an extensive statistical analysis was performed, including frequency analysis and analysis of variance. Correlation among variables was performed with principal component analysis.Results: All the antigens showed an increased expression according to tumor size increment; moreover, sialyl Lewis x expression showed a significant increase in relation to disease stage, whereas Tn and TF presented a positive tendency. Vascular invasion was related to sialyl Lewis x expression and number of metastatic lymph nodes. Taking into account risk factors, when a patient had at least one child, Lewis antigens diminished their expression. In relation to breastfeeding, sialyl Lewis x expression diminished, although its apical expression increased.Conclusion: Associations between MUC1 and carbohydrate antigens and risk and prognostic factors show the complexity of the cellular biological behavior that these antigens modulate in breast cancer.Keywords: breast cancer, Argentine women, risk factors, prognostic factors, antigenic expression

  6. Interactive effects of large- and small-scale sources of feral honey-bees for sunflower in the Argentine Pampas.

    Directory of Open Access Journals (Sweden)

    Agustín Sáez

    Full Text Available Pollinators for animal pollinated crops can be provided by natural and semi-natural habitats, ranging from large vegetation remnants to small areas of non-crop land in an otherwise highly modified landscape. It is unknown, however, how different small- and large-scale habitat patches interact as pollinator sources. In the intensively managed Argentine Pampas, we studied the additive and interactive effects of large expanses (up to 2200 ha of natural habitat, represented by untilled isolated "sierras", and narrow (3-7 m wide strips of semi-natural habitat, represented by field margins, as pollinator sources for sunflower (Helianthus annus. We estimated visitation rates by feral honey-bees, Apis mellifera, and native flower visitors (as a group at 1, 5, 25, 50 and 100 m from a field margin in 17 sunflower fields 0-10 km distant from the nearest sierra. Honey-bees dominated the pollinator assemblage accounting for >90% of all visits to sunflower inflorescences. Honey-bee visitation was strongly affected by proximity to the sierras decreasing by about 70% in the most isolated fields. There was also a decline in honey-bee visitation with distance from the field margin, which was apparent with increasing field isolation, but undetected in fields nearby large expanses of natural habitat. The probability of observing a native visitor decreased with isolation from the sierras, but in other respects visitation by flower visitors other than honey-bees was mostly unaffected by the habitat factors assessed in this study. Overall, we found strong hierarchical and interactive effects between the study large and small-scale pollinator sources. These results emphasize the importance of preserving natural habitats and managing actively field verges in the absence of large remnants of natural habitat for improving pollinator services.

  7. Interactive effects of large- and small-scale sources of feral honey-bees for sunflower in the Argentine Pampas.

    Science.gov (United States)

    Sáez, Agustín; Sabatino, Malena; Aizen, Marcelo A

    2012-01-01

    Pollinators for animal pollinated crops can be provided by natural and semi-natural habitats, ranging from large vegetation remnants to small areas of non-crop land in an otherwise highly modified landscape. It is unknown, however, how different small- and large-scale habitat patches interact as pollinator sources. In the intensively managed Argentine Pampas, we studied the additive and interactive effects of large expanses (up to 2200 ha) of natural habitat, represented by untilled isolated "sierras", and narrow (3-7 m wide) strips of semi-natural habitat, represented by field margins, as pollinator sources for sunflower (Helianthus annus). We estimated visitation rates by feral honey-bees, Apis mellifera, and native flower visitors (as a group) at 1, 5, 25, 50 and 100 m from a field margin in 17 sunflower fields 0-10 km distant from the nearest sierra. Honey-bees dominated the pollinator assemblage accounting for >90% of all visits to sunflower inflorescences. Honey-bee visitation was strongly affected by proximity to the sierras decreasing by about 70% in the most isolated fields. There was also a decline in honey-bee visitation with distance from the field margin, which was apparent with increasing field isolation, but undetected in fields nearby large expanses of natural habitat. The probability of observing a native visitor decreased with isolation from the sierras, but in other respects visitation by flower visitors other than honey-bees was mostly unaffected by the habitat factors assessed in this study. Overall, we found strong hierarchical and interactive effects between the study large and small-scale pollinator sources. These results emphasize the importance of preserving natural habitats and managing actively field verges in the absence of large remnants of natural habitat for improving pollinator services. PMID:22303477

  8. Variation in the proximate composition and fatty acid profile recovered from Argentine hake (Merluccius hubbsi waste from Patagonia

    Directory of Open Access Journals (Sweden)

    Cretton, M.

    2016-03-01

    Full Text Available The fish processing operations in Patagonia produce large amounts of waste. The main fishery resource in Argentina is the Argentine hake (Merluccius hubbsi. The ports of the province of Chubut (the most important of which are Puerto Madryn, Rawson and Comodoro Rivadavia, together with Caleta Paula Port (province of Santa Cruz, in the Argentine Patagonia, capture more than 82,000 tons of hake annualy, 80% of which are of M. hubbsi, which is mostly converted into fillets. From this capture, about 2,296 tons of liver would be available for the extraction of oil. To promote the recovery and industrial use of fish oil, in the present study, we determined the variation in the proximate composition and fatty acid profile of Argentine hake waste from the ports mentioned above at different catch times. Proximate composition was determined according of the Official Methods of Analysis (AOAC. Fatty acid profile was analyzed by gas chromatography of the fatty acid methyl esters (FAMEs. A standard mixture of FAMEs was run under identical conditions to identify the compounds on the basis of their retention times. Fatty acids were quantified using heptadecanoic acid (C17:0 as internal standard. The highest lipid recovery (27.0 to 41.8% of total lipids was obtained from the liver fraction. Palmitic acid (C16:0, oleic acid (18:1 n9, docosahexaenoic acid (22:6 n3, eicosapentaenoic acid (20:5 n3 and palmitoleic acid (16:1 were the main constituents. Protein levels in viscera without livers (V-L were higher than those in the liver. The extraction of marine fish oil and the production of fish offal meal from waste from fish factories would contribute to the sustainability of the regional industry, because it would also decrease the volume of waste, with benefits to the environment.El procesamiento de pescados en Patagonia produce gran cantidad de residuos. El recurso de pesca más importante en la Argentina es la merluza argentina (Merluccius hubbsi. En Patagonia

  9. Predicciones del crecimiento en poblaciones de pino laricio (Pinus nigra Arn. ssp. salzmannii bajo diferentes escenarios futuros de cambio climático

    Directory of Open Access Journals (Sweden)

    D. Candel-Pérez

    2012-01-01

    Full Text Available La disminución de las precipitaciones y el incremento de la temperatura registrados en las últimas décadas, junto con el aumento de la probabilidad de ocurrencia de eventos extremos de sequía, hacen muy probable una mayor vulnerabilidad de las poblaciones forestales mediterráneas. Sin embargo, el impacto de los diferentes escenarios climáticos previstos para el futuro sobre el crecimiento de las especies forestales ha sido poco desarrollado. Analizamos el patrón de crecimiento del pino laricio (Pinus nigra Arn. ssp salzmannii a lo largo de un gradiente altitudinal en la Serranía de Cuenca (este de la Península Ibérica. Estos datos, expresados como incremento de área basal, se usaron para ajustar modelos lineales mixtos de clima-crecimiento. A partir de estos modelos se realizó una predicción del crecimiento de los individuos en el futuro, usando como variables independientes los modelos de cambio climático CGCM2 y ECHAM4 y los escenarios de emisiones A2 y B2 del IPCC, disponibles a escala regional para el área de estudio. Hipotetizamos que las poblaciones situadas a menor altitud tendrán una menor tasa de crecimiento medio y serán las más vulnerables al aumento de la aridez climática. Los datos climáticos locales y regionales registrados durante el siglo XX, así como los modelos de clima futuro considerados (2011-2070, coinciden en mostrar una tendencia de calentamiento y un aumento de los episodios de sequía extrema. En las poblaciones de P. nigra situadas a menor altitud la tasa de crecimiento medio no fue inferior pero las correlaciones entre temperatura y crecimiento fueron siempre negativas y por tanto, los modelos predicen para estas poblaciones una drástica reducción del crecimiento y su virtual desaparición. Sin embargo, las poblaciones más envejecidas y las situadas en su límite superior altitudinal mostraron predicciones similares o ligeramente inferiores al crecimiento actual, a pesar de mostrar la menor

  10. 复方樟柳碱联合无环鸟苷治疗急性视网膜坏死%Clinical effects of combination application of compound anisodin and acyclovir(ACV)on acute retinal necrosis(ARN)

    Institute of Scientific and Technical Information of China (English)

    王涌; 邱颖杰

    2010-01-01

    目的 探讨急性视网膜坏死(ARN)的有效治疗方法.方法 将20例22眼随机分为治疗组和常规组两组,治疗组12眼采用复方樟柳碱联合无环鸟苷(ACV)治疗,与常规组10眼进行对比现察.结果 经3~15个月的观察随访,治疗组12眼中有10眼视力不同程度提高,提高率为83%.结论 复方樟柳碱联合无环鸟苷是治疗ARN的一种有效方法.

  11. Argentine Radiation Protection Society Experience in RP education and training; Experiencia de la Sociedad Argentina de Radioproteccion en capacitacion en Proteccion Radiologica

    Energy Technology Data Exchange (ETDEWEB)

    Bomben, A. M.; Ciallella, N. R.; Thomasz, E.; Rudelli, M.; Gisone, P.; Ventura, M.; Gomez Parada, I.; Signoretta, C.

    2003-07-01

    Since its creation in 1967, the Argentine Radiation Protection Society (SAR) promotes all the radiation protection and nuclear safety aspects not only within the scientific, technical and academic areas, but also to general public. To fulfill this objective, SAR organised training and refresher courses, seminars and workshops on RP subjects. During 2002, SAR organised 7 basic and specialized courses regarding the uses of radioactive materials in industrial applications and the course on medical response in radiological accidents, that was attended by Argentine and other Latin American participants. The programmes of the courses are developed in compliance with the legal requirements and also considering specifics needs. In this paper, the characteristics of the courses are enunciated and basic statistics regarding courses and participants are presented. For the 2003 and 2004, SAR foresees the organisation of 18 courses per year and has the capacity to deliver other courses by request. all the courses are delivered in Spanish language. Based on this educational experience SAR consider a priority the inclusion, of a RP module in all the scientific graduate programmes to generate awareness on the importance of RP. Taking into account the migration of professionals to Europe and North America and the Globalization, SAR advocates the harmonization of RP syllabus to attain an international recognition. (Author)

  12. Co-operation Agreement. The Text of the Agreement of 25 May 1998 between the International Atomic Energy Agency and the Brazilian-Argentine Agency for Accounting and Control of Nuclear Materials

    International Nuclear Information System (INIS)

    The text of the Co-operation Agreement between the International Atomic Energy Agency and the Brazilian-Argentine Agency for Accounting and Control of Nuclear Materials is reproduced herein for the information of all Members. The Agreement entered into force on 25 May 1998, pursuant to Article 8

  13. Annual Report 2007 - ABACC - Brazilian-Argentine Agency for Accounting and Control of Nuclear Materials; Relatorio anual 2007 - ABACC - Agencia Brasileiro-Argentina de Contabilidade e Controle de Materiais Nucleares

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2007-07-01

    This document reports activities during the year 2007 related to: technical activities as application of safeguards; management of the Quadripartite Agreement and the SCCC - Common System for Accounting and Control of Nuclear Materials; training; technical cooperation; outlook for 2008 and; institutional, administrative and financial activities; technical glossary; list of brazilian facilities; list of argentine facilities and a list of institution of nuclear area.

  14. Annual Report ABACC 2009 - Brazilian-Argentine Agency for the Accounting and Control of Nuclear Materials; Relatorio anual 2009 - Agencia Brasileiro-Argentina de Contabilidade e Controle de Materiais Nucleares (ABACC)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2009-07-01

    This document reports the actives during the year 2009 related to: technical activities as application of safeguards; management of the Quadripartite Agreement and the SCCC - Common System for Accounting and Control of Nuclear Materials; training; technical cooperation; institutional, administrative and financial activities; perspectives for 2010; list of inspectors; list of Brazilian and Argentine facilities subject to the Quadripartite Agreement

  15. Agreement of 13 December 1991 between the Republic of Argentina, the Federative Republic of Brazil, the Brazilian-Argentine agency for accounting and control of nuclear materials and the International Atomic Energy Agency for the application of safeguards

    International Nuclear Information System (INIS)

    The document reproduces the text of an agreement by exchange of letters with the Argentine Republic in connection with the Treaty on the Non-Proliferation of Nuclear Weapons and the Treaty for the Prohibition of Nuclear Weapons in Latin America and the Caribbean. The agreement was approved by the Board of Governors on 18 March 1997 and entered into force on that date

  16. Vestiges of an Ordovician west-vergent thin-skinned Ocloyic thrust belt in the Argentine Precordillera, southern Central Andes

    Science.gov (United States)

    Thomas, William A.; Astini, Ricardo A.

    2007-08-01

    Collision of the down-going, Laurentia-derived Argentine Precordillera terrane with the Gondwanan margin drove the Ordovician Ocloyic orogeny, including subduction volcanism, metamorphism, and top-to-west shearing east of the Precordillera. In the Precordillera, above passive-margin carbonates (Lower Ordovician San Juan Limestone and older carbonates), a Middle to Upper Ordovician westward-prograding synorogenic clastic wedge of black shale (Gualcamayo Shale) and coarser clastic sediment (Las Vacas Conglomerate and Trapiche Formation) fills a peripheral foreland basin. New research has identified vestiges of a west-directed thin-skinned Ocloyic foreland thrust belt that has been fragmented by east-directed Andean thrusting. The El Corral thrust sheet, with hanging-wall detachment in the San Juan Limestone, extends over a west-directed footwall frontal ramp and extensive flat to low-angle footwall cutoff in the Gualcamayo and Las Vacas formations. Las Vacas conglomerates in the footwall include olistoliths (10-m scale) exclusively of San Juan Limestone and Gualcamayo Shale; the beds in some olistoliths are folded. The advancing El Corral thrust sheet successively supplied and overrode the stratigraphically restricted olistoliths. In the El Corral footwall, tight west-vergent folds and faults within an anticlinorium in the San Juan Limestone and Gualcamayo Shale suggest a deeper (unexposed) thrust fault, the Los Celestitos fault. West of the anticlinorium, easterly dip (restored to remove Andean deformation) beneath an angular unconformity between Las Vacas and Trapiche beds is consistent geometrically with the trailing limb of a west-vergent fault-propagation anticline in the hanging wall of the subsurface Los Celestitos fault. The same angular unconformity truncates the El Corral fault and hanging-wall strata. In the Trapiche Formation, contrasting sedimentary facies from sandy turbidites westward to limestone-clast megabeds and olistoliths suggest another frontal

  17. Oxigenoterapia en vuelos nacionales e internacionales en la Argentina Oxygen therapy during Argentine-based national and international flights

    Directory of Open Access Journals (Sweden)

    Alejandro Martínez Fraga

    2008-12-01

    Full Text Available No existe estudio que evalúe el estado de la oxigenoterapia en vuelo (OV en nuestro país. El objetivo de este estudio fue evaluar los requisitos, dificultades, sistemas y costos de la OV de las companías aéreas nacionales (N e internacionales (I que operan desde Buenos Aires. Se utilizó la misma encuesta telefónica y metodología que el estudio de Stoller y col.12. Los autores se comunicaron telefónicamente con 25 aerolíneas que operaban en los dos aeropuertos de Buenos Aires en julio de 2007, y se interrogó sobre los requisitos necesarios para viajar, sistemas y costos. Se usaron técnicas estadísticas convencionales siendo significativa pThere are no data about supplemental oxygen in flight in our country. The objective of our study was to evaluate arranging in-flight-oxygen required by a simulated traveler, system of administration and costs, and to compare the results between Argentine-based (A and international (I airlines. The questionnaire used was similar to that of Stoller et al12. Data collection consisted of telephone calls placed by one of the authors to all commercial air carriers listed in our two Buenos Aires City airports during July 2007. A structured interview with questions was addressed on issues that an oxygen-using air traveler would need to arrange in-flight oxygen. Of the 25 airlines, 6 were discarded because of lack of information (24%, three A -60%-and one I-16%-. All A allowed in-flightoxygen vs. 80% of I (p<0.05, 100% of A and 94% of I required a medical certificate (p=NS; 71% of A and 100% of I required previous notification (p<0.05; 50% of A and 87% of I provided patient interphases of oxygen administration (p=NS. Free of charge oxygen could be provided by 100% of A and 50% of I, with airline charge between 70 to 300 dollars. In conclusion, we observed different policies, rules, availability, and a pronounced lack of standardization of airline information. The cost of oxygen was very different between

  18. Sobre las etapas políticas de los doscientos años argentinos On political stages of two centuries argentines

    Directory of Open Access Journals (Sweden)

    Ricardo Sidicaro

    2011-06-01

    Full Text Available Las diferentes etapas del desarrollo político de los dos siglos argentinos son analizadas por el autor considerando interpretaciones de actores políticos y de sociólogos de cada época que centraron el foco de su interés en los sistemas de poder y en los modos de acción de los dirigentes del Estado y de los partidos políticos.Different stages of political development of two centuries argentines are analyzed by the author considering interpretations of political actors and sociologists of each era that centered the focus of interest in systems of power and modes of action of the leaders of the State and political parties.

  19. Making Sense of an Unstable Legislature: Committee Assignments in the Argentine Chamber of Deputies, 1946–2001 La lógica de una legislatura inestable: la distribución de comisiones en la Cámara de Diputados Argentina, 1946-2001

    OpenAIRE

    Silvina Lilian Danesi; Ludovic Rheault

    2011-01-01

    Latin American legislatures have gone largely unstudied, with the functioning of the Argentine Chamber of Deputies prior to the 1980s being an entirely unexplored subject. This paper fills that gap by examining the organization of the Chamber, with particular focus on its standing committee system from 1946 to 2001. We assess the portability of two U.S.-based theoretical approaches to legislative organization by applying them to committee assignments. An original data set of Argentine deputie...

  20. Mutations in CFTR gene and clinical correlation in Argentine patients with congenital bilateral absence of the vas deferens Correlación de las características clínicas con mutaciones del gen CFTR en pacientes argentinos con ausencia bilateral congénita de vasos deferentes

    OpenAIRE

    Levy, Estrella M; Patricia Granados; Vanesa Rawe; Santiago Brugo Olmedo; María C Luna; Eduardo Cafferata; Omar H Pivetta

    2004-01-01

    Congenital bilateral absence of the vas deferens (CBAVD) is a form of male infertility in which mutations in the cystic fibrosis transmembrane conductance regulator (CFTR) gene have been identified. Here we identify different mutations of CFTR and the poly-T variant of intron 8 (IVS8) in Argentine patients and analyze sweat test values and clinical characteristic related to Cystic Fibrosis (CF). For counseling purposes the two most frequent mutations in Argentine CF population: DF508 and G542...

  1. Organización y financiamiento del sistema de salud en la Argentina The Argentine Health System: Organization and financial features

    Directory of Open Access Journals (Sweden)

    Hugo E Arce

    2012-10-01

    Full Text Available El sistema de salud argentino se caracteriza por los siguientes rasgos: a la organización federal del país, donde las provincias se encargan de administrar salud y educación; b coexistencia de servicios públicos y privados, tanto ambulatorios como de internación; c entidades fragmentadas de seguridad social, en su mayoría de origen extra-estatal. Se describen y se calculan los componentes del sistema; se analiza la distribución del poder de decisión entre la autoridad sanitaria nacional y las provinciales y se comparan con la organización de otros países. Se muestran datos estadísticos sobre distribución del gasto en salud y cobertura de servicios en la población. Asimismo se presentan flujos financieros entre las diversas fuentes de recursos, aseguradores, prestadores y los usuarios de cada sector.The Argentine health system is defined by the following features: a federal country organization; b coexistence of public and private services with either outpatients or inpatients; c fragmented entities of social security, most of these originated outside of the state organization. Components of the system are described and weighed; making decisions strength between national and provincial health authorities is analyzed and the Argentine system is compared with that of other countries. Statistical data on distribution of health expenditures and coverage of health services are presented as well as financial flow among diverse funding sources, insurers, providers and users of each sector.

  2. Coordination of the U.S. DOE-Argentine National Atomic Energy Commission (CNEA) science and technology implementing arrangement. Final report

    International Nuclear Information System (INIS)

    In 1989, the US Department of Energy (DOE) established the Office of Environmental Management (EM) and delegated to the office the responsibility of cleaning up the US nuclear weapons complex. EM's mission has three primary activities: (1) to assess, remediate, and monitor contaminated sites and facilities; (2) to store, treat, and dispose of wastes from past and current operations; and (3) to develop and implement innovative technologies for environmental remediation. To this end, EM has established domestic and international cooperative technology development programs, including one with the Republic of Argentina. Cooperating with Argentine scientific institutes and industry meets US cleanup objectives by: (1) identifying and accessing Argentine EM-related technologies, thereby leveraging investments and providing cost-savings; (2) improving access to technical information, scientific expertise, and technologies applicable to EM needs; and (3) fostering the development of innovative environmental technologies by increasing US private sector opportunities in Argentina in EM-related areas. Florida International University's Hemispheric Center for Environmental Technology (FIU-HCET) serves as DOE-OST's primary technology transfer agent. FIU-HCET acts as the coordinating and managing body for the Department of Energy (DOE)-Argentina National Atomic Energy Commission (CNEA) Arrangement. Activities include implementing standard operating procedures, tracking various technical projects, hosting visiting scientists, advising DOE of potential joint projects based on previous studies, and demonstrating/transferring desired technology. HCET hosts and directs the annual Joint Coordinating Committee for Radioactive and Mixed Waste Management meeting between the DOE and CNEA representatives. Additionally, HCET is evaluating the possibility of establishing similar arrangements with other Latin American countries

  3. V Argentine - matriarhat

    Index Scriptorium Estoniae

    2007-01-01

    Argentina presidendi Nestor Kirchneri abikaasa Cristina Fernandez de Kirchner edestas presidendivalimistel oma konkurente. C. Kirchneri edu põhjusest, tema võrdlemisest Evita Peroni ja Hillary Clintoniga

  4. Argentine nuclear program

    International Nuclear Information System (INIS)

    The paper describes Argentina's nuclear program, detailing its objectives, the schedule of construction of nuclear plants and local production of required equipment. The technologies adopted so far, the local industrial and engineering participation, the preliminary study for the construction of the next power station and Argentina's nonproliferation nuclear policy are analyzed. Argentina's point of view on Canadian nonproliferation policy and CANDU reactor export is discussed

  5. EFFECTS OF HEALTH EDUCATION ON ARN COMPLYING WITH RETINAL DETACHMENT AFTER VITRORETINAL SURGERY%健康教育对ARN并视网膜脱离术后疗效的影响

    Institute of Scientific and Technical Information of China (English)

    唐湘波; 肖智玉; 刘放阳

    2003-01-01

    目的:研究健康教育对急性视网膜坏死综合征(acute retinal necrosis syndromo,ARN)并视网膜脱离术后疗效的影响.方法:随机将32例(42眼)ARN并视网膜脱离病人分为A,B两组.A组,22例(29眼)作为观察组,术后按制订的健康教育方案进行护理.B组,10例(13眼)作为对照组,常规护理,不进行健康教育.对比观察两组术后疗效及并发症.结果:AB两组对照比较,A组手术成功率明显增加,术后并发症如视网膜脱离复发、角膜水肿、继发性青光眼等发生率明显降低(P<0.05).结论:健康教育有助于提高ARN并视网膜脱离病人手术疗效,减少术后并发症.

  6. Activities developed by the biological dosimetry laboratory of the Autoridad Regulatoria Nuclear - ARN of Argentina; Actividades desarrolladas por el laboratorio de dosimetria biologica de la Autoridad Regulatoria Nuclear de Argentina

    Energy Technology Data Exchange (ETDEWEB)

    Radl, A.; Sapienza, C.E.; Taja, M.R.; Bubniak, R.; Deminge, M.; Di Giorgio, M., E-mail: csapienza@arn.gob.ar [Autoridad Regulatoria Nuclear (ARN), Buenos Aires (Argentina)

    2013-07-01

    Biological dosimetry (DB) allows to estimate doses absorbed in individuals exposed to ionizing radiation through the quantification of stable and unstable chromosome aberrations (SCA and UCA). The frequency of these aberrations is referred to a calibration dose response curve (in vitro) to determine the doses of the individual to the whole body. The DB is a necessary support for programs of national radiation protection and response systems in nuclear or radiological emergencies in the event of accidental or incidental, single overexposure or large scale. In this context the Laboratory of Dosimetry Biological (LDB) of the Authority Regulatory Nuclear (ARN) Argentina develops and applies different dosimeters cytogenetic from four decades ago. These dosimeters provide a fact more within the whole of the information necessary for an accidental, complementing the physical and clinical dosimetry exposure assessment. The most widely used in the DB biodosimetric method is the quantification of SCA (dicentrics and rings Central) from a sample of venous blood. The LDB is accredited for the trial, under rules IRAM 301: 2005 (ISO / IEC 17025: 2005) and ISO 19238:2004. Test applies to the immediate dosimetry evaluation of acute exposures, all or a large part of the body in the range 0,1-5 Gy. In this context the LDB is part of the Latin American network of DB (LBDNet), BioDoseNet-who and response system in radiological emergencies and nuclear IAEA-RANET, being enabled to summon the LBDNet if necessary.

  7. Agreement of 13 December 1991 between the Republic of Argentina, the Federative Republic of Brazil, the Brazilian-Argentine Agency for Accounting and Control of Nuclear Materials and the International Atomic Energy Agency for the Application of Safeguards

    International Nuclear Information System (INIS)

    The text of the Agreement (and the Protocol thereto) between the Republic of Argentina, the Federative Republic of Brazil, the Brazilian-Argentine Agency for Accounting and Control of Nuclear Materials and the International Atomic Energy Agency for the Application of Safeguards is reproduced in this document for the information of all Members. The Agreement was approved by the Agency's Board of Governors on 7 December 1991 and signed in Vienna on 13 December 1991

  8. Networks in Argentine agriculture: a multiple-case study approach Redes en la agricultura argentina: un estudio de caso múltiple Redes na agricultura argentina: um estudo de caso múltiplo

    OpenAIRE

    Sebastián Senesi; Fabio Ribas Chaddad; Hernán Palau

    2013-01-01

    Argentina is among the four largest producers of soybeans, sunflower, corn, and wheat, among other agricultural products. Institutional and policy changes during the 1990s fostered the development of Argentine agriculture and the introduction of innovative process and product technologies (no-till, agrochemicals, GMO, GPS) and new investments in modern, large-scale sunflower and soybean processing plants. In addition to technological changes, a "quiet revolution" occurred in the way agricultu...

  9. ABACC: annual report 2012 - Brazilian-Argentine Agency for the Accounting and Control of Nuclear Materials; ABACC: informe annual 2012 - Agencia Brasileiro-Argentina de Contabilidade e Controle de Materiais Nucleares

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2012-07-01

    This document reports the actives during the year 2012 related to: technical activities as safeguards application and advances in application of safeguards; main activities conducted in Brazil and main activities developed at ABACC headquarters; management of the Quadripartite Agreement and of the SCCC - Common System for Accounting and Control of Nuclear Materials; training; technical cooperation; institutional, administrative and financial activities; perspectives for 2013; list of inspectors; list of Brazilian and Argentine facilities subject to the Quadripartite Agreement.

  10. Analysis for making a regulatory decision to equipment of industrial gammagraphy in Argentin; Analisis para la toma de decision regulatoria sobre equipos de gammagrafia industrial en Argentina

    Energy Technology Data Exchange (ETDEWEB)

    Ermacora, Marcela G.; Vidal, Dora N.; Alonso, Maria T., E-mail: mermacora@arn.gob.ar, E-mail: dvidal@arn.gob.ar, E-mail: malonso@arn.gob.ar [Autoridad Regulatoria Nuclear (ARN), Buenos Aires (Argentina)

    2013-10-01

    Industrial gammagraphy is a practice widely used as a nondestructive testing technique in Argentina. Experience worldwide has shown the need for an improvement in the intrinsic safety of the equipment used in this lab. In response to this reason, the board of the Nuclear Regulatory Authority (ARN) has considered a proposal to withdraw service movement and much of the equipment inventory scan belonging to industrial facilities nationwide. The main objective of this paper is to present the results of the analysis performed to support the above proposal. The main elements of evaluation can be summarized as follows: I) the teams that do not conform to international recommendations regarding compliance with key safety requirements of international standards such as ISO 3999:2004 (E) {sup R}adiation protection - Industrial Apparatus for gamma radiography - Specifications for performance, design and tests {sup ;} II) the decision by some manufacturers to discontinue production of certain models of equipment and the provision of spare parts, and III) the validity of certificates bulk type B (U) for transport. In conclusion, it highlights the importance of a regulatory decision supplementary to the Standard AR 7.9.1 concerning the operation of scan equipment industry, based on current international recommendations and Argentina's commitment to good practice and safety culture which can lead to a positive impact on radiation safety in this art.

  11. Accountability and non-proliferation nuclear regime: a review of the mutual surveillance Brazilian-Argentine model for nuclear safeguards; Accountability e regime de nao proliferacao nuclear: uma avaliacao do modelo de vigilancia mutua brasileiro-argentina de salvaguardas nucleares

    Energy Technology Data Exchange (ETDEWEB)

    Xavier, Roberto Salles

    2014-08-01

    The regimes of accountability, the organizations of global governance and institutional arrangements of global governance of nuclear non-proliferation and of Mutual Vigilance Brazilian-Argentine of Nuclear Safeguards are the subject of research. The starting point is the importance of the institutional model of global governance for the effective control of non-proliferation of nuclear weapons. In this context, the research investigates how to structure the current arrangements of the international nuclear non-proliferation and what is the performance of model Mutual Vigilance Brazilian-Argentine of Nuclear Safeguards in relation to accountability regimes of global governance. For that, was searched the current literature of three theoretical dimensions: accountability, global governance and global governance organizations. In relation to the research method was used the case study and the treatment technique of data the analysis of content. The results allowed: to establish an evaluation model based on accountability mechanisms; to assess how behaves the model Mutual Vigilance Brazilian-Argentine Nuclear Safeguards front of the proposed accountability regime; and to measure the degree to which regional arrangements that work with systems of global governance can strengthen these international systems. (author)

  12. Discussion about decision support systems using continuous multi-criteria methods for planning in areas with hydro-basins, agriculture and forests, from examples in Argentine.

    Science.gov (United States)

    Anton, J. M.; Grau, J. B.; Tarquis, A. M.; Andina, D.; Cisneros, J. M.; Sanchez, E.

    2012-04-01

    The authors were involved last years in projects considering diverse decision problems on the use of some regions in Argentine, and also related to rivers or rural services in them. They used sets of multi-criteria decision methods, first discrete when the problem included few distinct alternatives, such as e.g. forestry, traditional or intensive agriculture. For attributes they were different effects, classified then in environmental, economic and social criteria. Extending to other gentler areas, such as at South of the Province of Córdoba, Arg., they have balanced more delicately effects of continuous levels of actions, with a combination of Goal Programming linked methods, and they adopted compromises to have precise solutions. That has shown, and in part open, a line of research, as the setting of such models require various kinds of definitions and valuations, including optimizations, goals with penalties in deviations and restrictions. That can be in diverse detail level and horizon, in presence of various technical and human horizons, and that can influence politics of use of terrain and production that will require public and private agents. The research will consider consideration of use and conservation of soils, human systems and agro productions, and hence models for optimization, preferably in such Goal Programming ways. That will require considering various systems of models, first in theory to be reliable, and then in different areas to evaluate the quality of conclusions, and maybe that successively if results are found advantageous. The Bayesian ways will be considered, but they would require a prospective of sets of precise future states of nature or markets with elicited probabilities, which are neither evident nor decisive for the moment, as changes may occur in years but will be very unexpected or uncertain. The results will be lines of models to aid to establish policies of use of territories, by public agencies setting frames for private

  13. 基于Arne的新预测体系评估困难气道的研究%Study of a new system based on Arne system for predicting difficult laryngoscopy

    Institute of Scientific and Technical Information of China (English)

    靳皓; 陈萍

    2015-01-01

    目的:根据Arne气道评估体系建立一种较为准确的新预测系统。方法选择113例全麻后插管困难的患者(病例组),按年龄与性别1:1配对,选择全麻后喉镜暴露正常患者113例(对照组),分别记录有无困难插管史、困难插管相关疾病、气道疾病等病史,记录张口度、颞颌关节活动度、身高、甲颏距离、头颈活动度、Mallampati分级等指标的数值。以条件Logistic回归筛选出相关危险因素建立新预测体系,并分别用新系统和Arne评估气道。结果①Arne系统的8项指标中经条件Logistic回归分析得出有5项为相关危险因素,其相对危险度估计值(OR)及95%可信区间(95%CI)按OR由大到小依次为:气道疾病(19.57,1.28~94.33)、Mallampati分级(15.39,1.14~87.74)、身高甲颏距离比(11.62,1.06~75.41)、困难插管史(5.45,0.97~46.23)、张口度(2.78,0.91~12.50)②新预测体系灵敏度、特异性、阳性预测值、阴性预测值分别为85.8%、70.8%、74.6%和83.3%。结论新预测系统可较准确地评估困难气道。%Objective To evaluate the effect of a new system based on Arne system for predicting difficult la-ryngoscopy. Methods A total of 113 patients who suffered from difficult laryngoscopy were selected as the case group. According to principles of the same sex, similar age, 113 patients with easy laryngoscopy (the control group) were paired with those of the case group. Airway characteristics such as knowledge by the patients of previous diffi-cult laryngoscopy, pathologies associated with difficult laryngoscopy, clinical symptoms of airway pathology, height, thyromental distance (TMD), maximum range of the head and neck movement, inter-incisor gap and mandible luxa-tion were recorded. Logistic regression analysis was applied to screen the risk factors for establishing a new system. Arne system and new system was used for evaluating airway. Results ①Risk factors of difficult

  14. Prilliminary test of chemical components for Hedyotis uncinella HooK. et Arn in Guizhou%贵州苗药对坐叶的化学成分预试分析

    Institute of Scientific and Technical Information of China (English)

    干正洋

    2012-01-01

    The paper studies the chemical constituents of Hedyotis uncinella HooK. et Am in Guizhou through preliminary test from petroleum ether, 95% ethanol and purified water. The chemical constituents of Hedyotis uncinella HooK. et Arn was primarily demonstrated by precipitation reaction or color reaction with various indicator. Results: Hedyotis uncinella HooK. et Am may contain chemical constituents such as steroid, tfiterpenoids, volatile oil, fat, flavone, cardiacglycoside, coumarin, lactone, sugar, polysaccharide, saponin, tannin, organic acid. The results of priliminary test provide evidence for further study of the chemical compositions and biological activities of Hedyotis uncinella HooK. et Am.%首次对贵州苗药对坐叶的石油醚、95%乙醇、水提取物进行预试分析研究,通过多种指示剂和显色荆的显色反应或沉淀反应,初步推断对坐叶中可能含有的化学成分。结果显示:对坐叶中可能含甾体、三萜、挥发油、油脂、黄酮、酚、强心苷、香豆素、内酯、糖、多糖、皂苷、糅质、有机酸等化学成分。此试验为进一步研究对坐叶的生物活性成分奠定了基础。

  15. PRESS AND SOCIAL NETWORKING SERVICES IN THE INTERNET: APPROACHES TO THE RELATIONS OF TWO ARGENTINE ONLINE NEWSPAPERS WITH FACEBOOK AND TWITTER

    Directory of Open Access Journals (Sweden)

    Natalia Raimondo Anselmino

    2013-12-01

    Full Text Available This article describes the incorporation of the social networks resources on Internet into digital interfaces of the two main Argentine newspapers, Clarín and La Nación, as well as the ways in which these online newspapers manage and use their official accounts on Facebook (FB and Twitter (TW. Such reflections are part of the first stage of a research project which aims to understand the relationship established, at present, between digital media and social networking, to account for the impact of the latter both the link to the press with his readership as in the press-public sphere relationship. As we have seen until now, these observed online newspapers use their official accounts on FB and TW for several purposes: to get viral spread of content; to establish a direct contact with the public; to get the audience involved and encourage their participation; to consolidate their own positions into the social networks; and to get users to control the quality of his speeches on the Internet. Besides, the incorporation of the social networks resources on these online newspapers would impact, specially, on news circulation process since a piece of news is no longer a stable unit and gets modified as the story travels through Internet social networks.

  16. Simulation of the park for electric generation of the Argentine Republic, analysis of its possible expansion with restrictions in the disposability of the fossil fuels

    International Nuclear Information System (INIS)

    In this work one simulates, using the program MESSAGE, the generation park electric of the Argentine Republic and their possible expansion, with restrictions in the readiness of fossil fuels. This, as other models of planning energetics promoted by IAEA, optimizes the expansion of the net having as function objective the smallest cost in the system. 25 years they were simulated, adopting like base the anus 2000 and considering different scenarios of internal and external demands. It was analysed the increase of the demand with restrictions in the readiness of the natural gas in the winter periods, since the Argentinean electric system has a great dependence of this fuel. To cover the increase of the electric demand, were selected the machines and fuels, at the moment available, with more technical and economic possibilities. In the scenarios without restrictions to the use of natural gas the program selects to the nuclear power station of Atucha II, to the increase of bench mark of the hydraulic power station of Yacireta and combined cycles that burn natural gas. In those in that the supply of natural gas is limited, it selects previously besides the signal ones, other nuclear power stations, other hydroelectric projects and turbines of gas operating with gas oil to cover the top requirements. (Author)

  17. Riflessioni sulla formazione in servizio degli insegnanti nelle scuole italo-argentine della città e provincia di Córdoba

    Directory of Open Access Journals (Sweden)

    Luciana Zollo

    2014-12-01

    The bilingual and intercultural condition of Italian schools in Argentina represents a potential to the education of an active citizenship in today’s Latin American context. Italian literature, either as a way of expressing the social and historical aspects which strongly connect Argentine culture to the Italian one, or as a means towards literature education and the endorsement of the reading habit, can be proposed as a significant contribution to the validation of Italian intangible heritage. The role of Italian literature within the curricula is taken into consideration, as well as the educational proposals and projects and, particularly, the teachers’ training activities. The bilingual and bicultural curriculum of the schools in Córdoba City and Province, originated within communities strongly characterized by the history of Italian migrations in Argentina, constitutes the starting point for a reflection on didactics, the teachers’ profile and their entrusted tasks, the goals and methods of their inservice training. The complexity of the linguistic and socio-cultural identity of those who are protagonists in the experience of “making the Italian school” in Argentina offers multiple ideas with the purpose of arising both individual and social awareness of an Italian culture to be recognized, appreciated and reworked.

  18. The Effects of Combination of Traditional Chinese Medicine, Acyclovir (ACV) and Corticosteroid on Acute Retinal Necrosis (ARN)%中药、无环鸟苷、皮质激素联合治疗急性视网膜坏死

    Institute of Scientific and Technical Information of China (English)

    陈卫玲; 杨志坤; 滕颖; 马晓萍

    2001-01-01

    目的:为了探讨急性视网膜坏死(acute retinal necrosis,ARN)的有效疗法.方法:对8例(11只眼)ARN患者用中药、无环鸟苷(acyclovir,ACV)、激素联合治疗.结果:随访3~36个月,10只眼视力有不同程度提高,视力提高达90.9%结论:中药、ACV、激素联合应用是治疗ARN的一种有效方法.

  19. Relegation, movements, conflict. Notes to think urban social question in contemporary Argentine Relegación, desplazamiento, conflicto. Notas para pensar la cuestión social urbana en la Argentina contemporánea

    OpenAIRE

    Daniela Soldano

    2008-01-01

    This paper addresses the ‘‘social question’’ and the problem of inequality in contemporary Argentine. It is based on a qualitative research on processes of territorial and socio-economic relegation in the metropolitan area of Buenos Aires city and the way they shape the identity of its inhabitants. In particular, it focuses on ‘‘recuperadores urbanos de residuos’’ (impoverished trash pickers who pick garbage
    that can be sold and recycled) and the type of exchanges in which they eng...

  20. La norma argentina de construcción de tesauros IRAM 32057: necesidad de actualización. 1. El vocabulario controlado The Argentine Standard for Thesaurus Construction IRAM 32057: a Need for Updating. 1. The Controlled Vocabulary

    Directory of Open Access Journals (Sweden)

    Ana M. Martínez

    2009-12-01

    Full Text Available Se comparó la norma argentina de construcción de tesauros monolingües (IRAM 32057:1983 con las últimas ediciones de la norma internacional (ISO 2788:1986, las normas nacionales de España (UNE 50106:1990, Estados Unidos (Z39.19:2005 y Gran Bretaña (BSI 8723-2:2005b, así como diversos manuales reconocidos. Se analizaron tanto el alcance y los aspectos formales de la norma, como los conceptos referidos a la normativa sobre el vocabulario controlado. El alcance de la norma argentina se limita a la construcción de tesauros monolingües, mientras que las nuevas normas estadounidense y británica cubren también diferentes sistemas de organización del conocimiento. En relación con los aspectos formales, la norma argentina carece de tabla de contenido, índice analítico, glosario, bibliografía y algunas secciones y anexos, contando además con muy pocos ejemplos. En cuanto a los aspectos conceptuales, algunas definiciones son incorrectas o desactualizadas, lo mismo que algunas de las recomendaciones para el control del vocabulario. Se concluye que la norma argentina debería revisarse y actualizarse de conformidad con las normas publicadas recientemente y la norma ISO 25964 aún en preparación.The Argentine standard for the construction of monolingual thesaurus (IRAM 32057:1983 was compared with the last editions of the international standard (ISO 2788:1986, and the national standards of Spain (UNE 50106:1990, United States (Z39.19:2005, and Great Britain (BSI 8723-2:2005b, and very well known manuals. The scope and formal issues were analyzed, as well as the conceptual issues for controlled vocabulary. The scope of the Argentine standard is limited to the construction of monolingual thesauri, while the new North-American and British standards also cover different knowledge organization systems. In relation to the formal issues, the Argentine standard has not table of content, analytical index, glossary, bibliography and some sections and

  1. The press and the military government: their relationship in the history of Argentine archaeology (1976-1983. The case of the “La Nación” newspaper

    Directory of Open Access Journals (Sweden)

    Paola Silvia RAMUNDO

    2010-08-01

    Full Text Available This paper presents a critical and reflexive analysis of the news published between 1976 and 1983 by the newspaper La Nación dealing with Argentine archaeology. Hence, news are considered a tool to study the history of this discipline during a badly reviewed period, evaluating the impact of the socio-historical context on Archaeology in order to determine the degree of public communication of science and the specific role played by this discipline in the construction of the past. Current and past views on Archaeology by the press are analyzed, considering these written documents an opinion former mass media.

  2. The Spanish press and the Argentine dictatorship (1976-1983: the portrayal of exile in «ABC», «El País» and «Triunfo»

    Directory of Open Access Journals (Sweden)

    Patricia MARENGHI

    2010-10-01

    Full Text Available The article analyses the information publishes in the Spanish press (El País, ABC and Triunfo on the phenomenon of the Argentine exile and on the last dictatorship (1976­1983 which caused it. The object is to examine the portrayal of the exiles that was developed in these newspapers. Two periods were selected which include the months of May and June in 1978 (Football World Cup, and April, May and June of 1982 (Malvinas War, as these events attracted the interest of international media.

  3. A comparative study of Trypanosoma cruzi infection in sylvatic mammals from a protected and a disturbed area in the Argentine Chaco.

    Science.gov (United States)

    Orozco, M M; Enriquez, G F; Cardinal, M V; Piccinali, R V; Gürtler, R E

    2016-03-01

    Understanding the complex epidemiology of Trypanosoma cruzi transmission cycles requires comparative studies in widely different environments. We assessed the occurrence of T. cruzi infection in sylvatic mammals, their infectiousness to the vector, and parasite genotypes in a protected area of the Argentine Chaco, and compared them with information obtained similarly in a nearby disturbed area. A total of 278 mammals from >23 species in the protected area were diagnosed for T. cruzi infection using xenodiagnosis, kDNA-PCR and nuclear satellite DNA-PCR (SAT) from blood samples. The relative abundance and species composition differed substantially between areas. Didelphis albiventris opossums were less abundant in the protected area; had a significantly lower body mass index, and a stage structure biased toward earlier stages. The capture of armadillos was lower in the protected area. The composite prevalence of T. cruzi infection across host species was significantly lower in the protected area (11.1%) than in the disturbed area (22.1%), and heterogeneous across species groups. The prevalence of infection in D. albiventris and Thylamys pusilla opossums was significantly lower in the protected area (nil for D. albiventris), whereas infection in sigmodontine rodents was three times higher in the protected area (17.5 versus 5.7%). Parasite isolates from the two xenodiagnosis-positive mammals (1 Dasypus novemcinctus and 1 Conepatus chinga) were typed as TcIII; both specimens were highly infectious to Triatoma infestans. Fat-tailed opossums, bats and rodents were kDNA-PCR-positive and xenodiagnosis-negative. Desmodus rotundus and Myotis bats were found infected with T. cruzi for the first time in the Gran Chaco. PMID:26708994

  4. A comparative study of Trypanosoma cruzi infection in sylvatic mammals from a protected and a disturbed area in the Argentine Chaco.

    Science.gov (United States)

    Orozco, M M; Enriquez, G F; Cardinal, M V; Piccinali, R V; Gürtler, R E

    2016-03-01

    Understanding the complex epidemiology of Trypanosoma cruzi transmission cycles requires comparative studies in widely different environments. We assessed the occurrence of T. cruzi infection in sylvatic mammals, their infectiousness to the vector, and parasite genotypes in a protected area of the Argentine Chaco, and compared them with information obtained similarly in a nearby disturbed area. A total of 278 mammals from >23 species in the protected area were diagnosed for T. cruzi infection using xenodiagnosis, kDNA-PCR and nuclear satellite DNA-PCR (SAT) from blood samples. The relative abundance and species composition differed substantially between areas. Didelphis albiventris opossums were less abundant in the protected area; had a significantly lower body mass index, and a stage structure biased toward earlier stages. The capture of armadillos was lower in the protected area. The composite prevalence of T. cruzi infection across host species was significantly lower in the protected area (11.1%) than in the disturbed area (22.1%), and heterogeneous across species groups. The prevalence of infection in D. albiventris and Thylamys pusilla opossums was significantly lower in the protected area (nil for D. albiventris), whereas infection in sigmodontine rodents was three times higher in the protected area (17.5 versus 5.7%). Parasite isolates from the two xenodiagnosis-positive mammals (1 Dasypus novemcinctus and 1 Conepatus chinga) were typed as TcIII; both specimens were highly infectious to Triatoma infestans. Fat-tailed opossums, bats and rodents were kDNA-PCR-positive and xenodiagnosis-negative. Desmodus rotundus and Myotis bats were found infected with T. cruzi for the first time in the Gran Chaco.

  5. The effects of nitric oxide cooling and the photodissociation of molecular oxygen on the thermosphere/ionosphere system over the Argentine Islands

    Directory of Open Access Journals (Sweden)

    G. D. Wells

    Full Text Available In the past the global, fully coupled, time-dependent mathematical model of the Earth's thermosphere/ionosphere/plasmasphere (CTIP has been unable to reproduce accurately observed values of the maximum plasma frequency, foF2, at extreme geophysical locations such as the Argentine Islands during the summer solstice where the ionosphere remains in sunlight throughout the day. This is probably because the seasonal dependence of thermospheric cooling by 5.3 µm nitric oxide has been neglected and the photodissociation of O2 and heating rate calculations have been over-simplified. Now we have included an up-to-date calculation of the solar EUV and UV thermospheric heating rate, coupled with a new calculation of a diurnally varying O2 photodissociation rate, in the model. Seasonally dependent 5.3 µm nitric oxide cooling is also included. With these important improvements, it is found that model values of foF2 are in substantially better agreement with observation. The height of the F2-peak is reduced throughout the day, but remains within acceptable limits of values derived from observation, except at around 0600 h LT. We also carry out two studies of the sensitivity of the upper atmosphere to changes in the magnitude of nitric oxide cooling and photodissociation rates. We find that hmF2 increases with increased heating, whilst foF2 falls. The converse is true for an increase in the cooling rate. Similarly increasing the photodissociation rate increases both hmF2 and foF2. These changes are explained in terms of changes in the neutral temperature, composition and neutral wind.

  6. Effects of cigarette smoking on early arthritis: a cross-sectional study-data from the Argentine Consortium for Early Arthritis (CONAART).

    Science.gov (United States)

    Haye Salinas, María Jezabel; Retamozo, Soledad; Alvarez, Ana Cecilia; Maldonado Ficco, Hernán; Dal Pra, Fernando; Citera, Gustavo; Benegas, Mariana; Chaparro del Moral, Rafael; Rillo, Oscar; Secco, Anastasia; Marino Claverie, Lucila; Catalan Pellet, Antonio; Marcos, Josefina; García, Mercedes Argentina; Marcos, Juan Carlos; Barbaglia, Ana; Bellomio, Verónica; Berman, Alberto; Quiroz, Cristian; Soriano, Enrique R; Ceccato, Federico; Paira, Sergio; Vazquez, Doralia; Juarez, Vicente Ricardo; Velozo, Edson Javier; Salvatierra, Gabriela; Caeiro, Francisco

    2015-05-01

    Our objective was to analyze the effects of cigarette smoking on disease activity, functional capacity, radiographic damage, serology and presence of extraarticular manifestations in patients with rheumatoid arthritis and undifferentiated arthritis. This is a cross-sectional study of 1,305 patients (729 with rheumatoid arthritis and 576 with undifferentiated arthritis) from CONAART, the Argentine Consortium for Early Arthritis that includes patients older than 16 years with <2 years of disease. Sociodemographic data, clinical characteristics of the disease and smoking history were collected. In patients with rheumatoid arthritis the disease activity score of 28 joints was 5.4 ± 1.3 in current smokers, 5.2 ± 1.4 in former smokers and 5.1 ± 1.4 in never smokers (p = 0.011). The simple erosion narrowing score was higher in current smokers and former smokers than in never smokers (M 14.0, R Q 6.0-21.0; M 15.0, R Q 7.0-24.0; M 10.0, R Q 5.0-17.0; p = 0.006). Current smokers had higher rheumatoid factor titer (M 160.0, R Q 80.0-341.0) than former smokers (M 146.8, R Q 6.03-255.5) and never smokers (M 15.0, R Q 9.0-80.0) (p = 0.004). The variable independently associated with tobacco exposure was simple erosion narrowing score (OR = 1.03, 95 % CI 1.00-1.05; p = 0.012). In patients with undifferentiated arthritis, an association between smoking status and parameters of activity or radiographic damage was not observed. Neither was tobacco exposure related to the presence of extraarticular manifestations or to the degree of disability in any of the two groups of patients. No relation was found between disease activity and severity, and number of packs smoked per year. Tobacco.

  7. Julie Lazes, Conflictualité, distribution et instabilité macroéconomique. Comportements rentiers et modes de régulation en Argentine

    Directory of Open Access Journals (Sweden)

    Julie Lazes

    2012-05-01

    Full Text Available À partir des travaux de Simmel sur la socialisation par le conflit, la thèse cherche à préciser la nature des compromis institutionnalisés en Argentine, en mettant en évidence la possibilité d’une reproduction économique fondée sur la violence. Cette violence s’incarne dans la présence d’une dynamique comportementale de type rentière c’est-à-dire s’articulant autour de la recherche d’une émancipation de la contrainte sociale, économique et politique. Bien que cette caractéristique soit inhérente au capitalisme, elle prend une dimension importante dans une société reposant sur une forte concentration des richesses et notamment de la propriété foncière.From a sociological approach to conflicting relationships as a process of social creation of links based on G. Simmel’s work, the main focus of this PhD dissertation is on the nature of institutionalized compromise in Argentina and a possible economic reproduction based on violence. We carry out the conclusion that in Argentina, violence is embodied into the rentier’s behavioral dynamics. In this case, violence is articulated with the pursuit of emancipation of the social, economic and political constraint. Even though this feature is inherent to capitalism, it takes an important dimension in a society that has been founded on a high concentration of wealth and, most particularly, in the concentration of land ownership.

  8. Symptom severity and viral protein or RNA accumulation in lettuce affected by big-vein disease Severidad de síntomas y acumulación de proteínas o ARN virales en lechugas afectadas por la enfermedad de las venas grandes

    Directory of Open Access Journals (Sweden)

    Carolina Araya

    2011-03-01

    Full Text Available Big-vein disease (BVD is a widespread and economically damaging disease in lettuce (Lactuca sativa L.. Typical symptoms are chlorotic clearing around leaf veins, leaf deformations, and impaired head development. In this research, we studied the relationship between symptom intensity and protein and viral RNA accumulation in infected plants. Naturally infected lettuce plants, from the field or greenhouse, were classified according to their symptomatology: mild, moderate, severe, and symptomless. Coat protein accumulation was evaluated by a double antibody sandwich/enzyme-linked immunosorbent assay (DAS-ELISA, and RNA levels were studied by semi-quantitative reverse transcription polymerase chain reaction (RT-PCR and quantitative RT-PCR. Virus coat protein accumulation did not differ for the two viruses associated with this disease among lettuce plants showing different symptom severity. Similarly, abundance of Mirafiori lettuce big-vein virus (MLBVV-RNA3 or Lettuce big-vein associated virus (LBVaV-RNA-2 were not different (P > 0.05 for diverse big vein disease severity rating scales. This suggests that symptom severity expressed by big-vein diseased lettuce plants did not necessarily reflect the accumulation of viruses associated with this disease in the host. Therefore, lettuce plants showing mild symptoms of BVD do not necessarily present lower virus levels than plants showing more severe symptomatology.La enfermedad de las venas grandes de la lechuga (Lactuca sativa L. es de origen viral, está ampliamente distribuida en el mundo, y provoca graves daños económicos en este cultivo. Los síntomas típicos de la enfermedad son clorosis alrededor de las venas, deformación de hojas y ausencia de formación de cabezas. En este trabajo se estudió la relación entre la intensidad de síntomas y la acumulación de proteínas y ARNs de origen viral en plantas afectadas por esta enfermedad. Lechugas infectadas naturalmente, provenientes de campo y de

  9. Psicanálise e marxismo: a fratura da Associação Psicanalítica Argentina (1971 Psychoanalysis and Marxism: the splitting of the Argentine Psychoanalytic Association (1971

    Directory of Open Access Journals (Sweden)

    Hugo Vezzetti

    2009-01-01

    Full Text Available O artigo aborda um acontecimento inusual em que se cruzam a história da psicanálise e a da esquerda marxista: a renúncia, por motivos ideológicos, de dois grupos à associação argentina. O trabalho procura ir além do testemunho dos protagonistas e interrogar os relatos fixados sobre o acontecimento. Para isso explora, a partir dos anos de 1960, as condições e as alternativas desse encontro entre Freud e Marx, particularmente no âmbito universitário (a Faculdade de Filosofia e Letras da UBA, na organização corporativa profissional (a Federação Argentina de Psiquiatras e em organizações políticas da época (o Partido Comunista e o peronismo revolucionário.The article looks at an unusual event in which the history of psychoanalysis and that of the Marxist left intersected: the resignation of two groups from the Argentine association on ideological grounds. Looking to go beyond the testimony of the protagonists and interrogate the accounts focusing on the event, the text explores the conditions and alternatives of this encounter between Freud and Marx from the 1960s onwards, particularly in academia (the Faculty of Philosophy and Letters of the UBA, in a professional organization (the Argentine Federation of Psychiatrists and in political organizations active during the period (the Communist Party and revolutionary Peronism.

  10. Mees. Naine. Kiretus. Armastus / Arne Merilai

    Index Scriptorium Estoniae

    Merilai, Arne, 1961-

    2011-01-01

    Mati Undi novellil "Tühirand" põhinev lavastus, dramatiseerija ja lavastaja Ingomar Vihmar. Osades Laura Peterson ja Ragne Pekarev, Martin Kõiv ja Markus Luik. Esietendus 5. sept. 2006 Sadamateatris

  11. Olemise luuleline kehtestamine: Viivi Luik / Arne Merilai

    Index Scriptorium Estoniae

    Merilai, Arne, 1961-

    2011-01-01

    Olemise sõnastamisest kirjanduse poolt, ka kõnetegude teooriast Viivi Luige loomingu näitel. Sisaldab lõike Viivi Luige esseest "Kõne koolimaja haual" (ilm. "Kõne koolimaja haual : artiklid ja esseed 1998-2006" / toimetanud Asta Põldmäe. Tallinn : Tuum, 2006) ning Kalev Kesküla artiklist "Tema juhatas inglid sisse" (ilm. Vikerkaar, nr. 10, 1996, lk. 79-86)

  12. Unetuma ülemlaul / Arne Merilai

    Index Scriptorium Estoniae

    Merilai, Arne, 1961-

    2011-01-01

    20. nov. 2006 Kumu auditooriumis esietendunud Ühenduse R.A.A.A.M teatriprojekt "Under" poetess Marie Underist. Lavastajad Merle Karusoo ja Raimo Pass, kunstnik Jaagup Roomet, helilooja Urmas Lattikas, peaosas Katrin Saukas

  13. Sakslased vallutasid Siberi gaasimaardla / Arne Luht

    Index Scriptorium Estoniae

    Luht, Arne

    2005-01-01

    Venemaa president Vladimit Putin ja Saksama kantsler Gerhard Schröder viibisid Hannoveris maailma suurimal tööstusmessil. Sõlmiti leping, mille kohaselt hakkab Saksa keemiakontserni BASF tütarfirma Wintershall esimese välisfirmana Siberis koos Gazpromiga gaasi puurima, alla kirjutati ka lepingule gaasijuhtme rajamise kohta Viiburist läbi Läänemere Saksamaale. Vene kartelliamet välistas Saksa firma Siemens osaluse ettevõttes Silovõje Mashinõ

  14. Pratiques alimentaires et (reconstruction identitaire chez des migrants boliviens de retour d’Argentine Foodways and identity (reconstruction among Bolivian migrants returning from Argentina

    Directory of Open Access Journals (Sweden)

    Charles-Édouard de Suremain

    2010-12-01

    Full Text Available L’étude anthropologique des pratiques alimentaires de migrants boliviens de retour ayant longuement séjourné en Argentine permet d’aborder la problématique de la migration et de l’identité : la construction sociale, réelle et imaginaire, de la migration ne passe-t-elle pas aussi par l’alimentation ? Ce que l’on mange ici et là-bas éclaire, en creux, le succès ou l’échec donné à la migration par les migrants et aide à comprendre plus finement les significations locales données à la pauvreté et à la richesse, au bien-être et au mal-être. L’observation et les « récits de vie alimentaires » menés dans une perspective intergénérationnelle – sur l’importance de la consommation attribuée au pain, à la viande et au soda– conduisent finalement à s’interroger sur la situation sociale et symbolique des migrants de retour dans leur société d’origine comme dans la société d’accueil. Au-delà, l’étude montre que les pratiques et les représentations alimentaires reflètent et structurent à la fois des relations sociales, des relations de sexe et des rapports au corps, et qu’elles permettent d’induire des processus de construction d’identités complexes.The anthropological study of Bolivian returnees’ food practices, who have spent a long time in Argentina, leads us to deal with the problematic of migration and identity: as a matter of fact, the social construction of migration, either real or imaginary, is also based on alimentation. What is eaten here and there enlightens, in a way, the success or failure of their migration, as perceived from the migrants’ point of view; it helps to deeply understand the local significations given to poverty and wealth, to well-being and discontent. Observation and « intergenerational food life stories », conducted on the importance of consumption of bread, meat and sodas, finally lead to question the social and symbolic situation of returnees

  15. Active tectonics in the Argentine Precordillera and Western Sierras Pampeanas Tectónica activa en la Precordillera argentina y las Sierras Pampeanas occidentales

    Directory of Open Access Journals (Sweden)

    L.L. Siame

    2006-12-01

    Full Text Available The Andean foreland of western Argentina (28°S-33°S corresponds to retroarc deformations associated with the ongoing flat subduction of the Nazca plate beneath the South American lithosphere. This region is characterized by high levels of seismic activity and crustal active faulting. To improve earthquake source identification and characterization in the San Juan region, data from seismology, structural geology and quantitative geomorphology were integrated and combined to provide a seismotectonic model. In this seismotectonic model, the Andean back-arc of western Argentina can be regarded as an obliquely converging foreland where Plio-Quaternary deformations are partitioned between strike-slip and thrust motions that are localized on the E-verging, thin-skinned Argentine Precordillera, and the W-verging thick-skinned Sierras Pampeanas, respectively. In this seismotectonic model, the Sierra Pie de Palo appears to be a key structure playing a major role in the partitioning of the Plio-Quaternary deformations.El antepais andino del centro-oeste de Argentina (28°S-33°S está caracterizado por deformaciones asociadas a la subducción horizontal activa de la placa de Nazca debajo de la litósfera de la placa Sudamericana. En esta región se concentra una importante actividad sísmica y fallamiento cortical activo. Para mejorar la identificación y caracterización de las fuentes sismogénicas en la región de San Juan, fueron integrados y combinados datos de sismología, geología estructural y geomorfología cuantitativa para establecer un modelo sismotectónico. El mismo considera al retroarco del oeste argentino como un antearco con convergencia oblicua donde las deformaciones plio-cuaternarias son particionadas en movimientos compresivos y de transcurrencia dextral. Dichos movimientos están localizados respectivamente en la Precordillera, una faja de pliegues y escurrimientos de cobertura con vergencia hacia el este, y en las Sierras

  16. Entre el "deber" y el "derecho": patrimonio arqueológico y obligaciones sociales en Patagonia Argentina Among "duty" and "rights": Archaeological heritage and social obligations in Argentine

    Directory of Open Access Journals (Sweden)

    Carolina Crespo

    2006-12-01

    actualized around this heritage, the change of meanings of these artefacts that such relationships motivate and the effects they produce on the management of the archaeological heritage. An analysis of the exchange of services and of the mutual obligations that arise serves as an example of the new meanings acquired by archaeological goods - especially rock art in Argentine Patagonia - in recent years, as well as the complexities of its management.

  17. Experience of the Argentine Radioprotection Society in training in radiological protection; Experiencia de la Sociedad Argentina de radioproteccion en capacitacion en proteccion radiologica

    Energy Technology Data Exchange (ETDEWEB)

    Bomben, A.M. [Sociedad Argentina de Radioproteccion (SAR), Av. del Libertador 8250 of. 122, (1429), Buenos Aires (Argentina)]. e-mail: abomben@sede.arn.gov.ar

    2006-07-01

    From its creation in 1967, the Argentine Radioprotection Society (SAR) has as basic purpose promoting all the aspects related with the radiological protection and the nuclear safety. Due to the great increment in the use of radioactive sources in diverse areas, soon it was evident for the SAR the importance and necessity to promote the knowledge of the radioprotection approaches between the users of radioactive sources and ionizing radiations in all its application fields, be these industrial, academic or doctors. From the year 2000, the SAR comes organizing in regular and periodical form basic and specialized courses about radiological safety of radioactive sources for industrial use and profile of oil wells, among others. In this work, the characteristics of the different dictated courses are described whose programs have been developed keeping in mind the requirements of the competent authorities of Argentina. Also, statistical information on the dictated courses and its participants is presented. The number of dictated courses was incremented from 6 (year 2000) up to 16 (year 2005), being also increased significantly the number of participants for course. The dictated courses are theoretical-practical, with a duration average of 20 hs. The educational body is constituted by specialists in the different topics with recognized experience. Its given to the participants notes and support material, as well as copies of the material presented to develop the course. When concluding the courses, its deliver to the participants certifies of attendance and/or approval, as it corresponds. In their headquarters the SAR has didactic facilities and specific equipment for the dictation of the courses. Also accounts with the easiness of dictating those courses outside of their headquarters. This is particularly advantageous for companies or organizations that are seated in points far from the main cities and they should qualify in radiological safety to the personnel but, by

  18. Morphosedimentary and hydrographic features of the northern Argentine margin: The interplay between erosive, depositional and gravitational processes and its conceptual implications

    Science.gov (United States)

    Preu, Benedict; Hernández-Molina, F. Javier; Violante, Roberto; Piola, Alberto R.; Paterlini, C. Marcelo; Schwenk, Tilmann; Voigt, Ines; Krastel, Sebastian; Spiess, Volkhard

    2013-05-01

    Bottom currents and their margin-shaping character became a central aspect in the research field of sediment dynamics and paleoceanography during the last decades due to their potential to form large contourite depositional systems (CDS), consisting of both erosive and depositional features. A major CDS at the northern Argentine continental margin was studied off the Rio de la Plata River by means of seismo- and hydro-acoustic methods including conventional and high-resolution seismic, parametric echosounder and single and swath bathymetry. Additionally, hydrographic data were considered allowing jointly interpretation of morphosedimentary features and the oceanographic framework, which is dominated by the presence of the dynamic and highly variable Brazil-Malvinas Confluence. We focus on three regional contouritic terraces identified on the slope in the vicinity of the Mar del Plata Canyon. The shallowest one, the La Plata Terrace (˜500 m), is located at the Brazil Current/Antarctic Intermediate Water interface characterized by its deep and distinct thermocline. In ˜1200 m water depth the Ewing Terrace correlates with the Antarctic Intermediate Water/Upper Circumpolar Deep Water interface. At the foot of the slope in ˜3500 m the Necochea Terrace marks the transition between Lower Circumpolar Deep Water and Antarctic Bottom Water during glacial times. Based on these correlations, a comprehensive conceptual model is proposed, in which the onset and evolution of contourite terraces is controlled by short- and long-term variations of water mass interfaces. We suggest that the terrace genesis is strongly connected to the turbulent current pattern typical for water mass interfaces. Furthermore, the erosive processes necessary for terrace formation are probably enhanced due to internal waves, which are generated along strong density gradients typical for water mass interfaces. The terraces widen through time due to locally focused, partly helical currents along the

  19. Adaptation of regulatory information and knowledge through knowledge maps in the Argentine Nuclear Regulatory Authority within the framework of nuclear renaissance

    International Nuclear Information System (INIS)

    almost immediate search for information for organizational decision-making purposes. Finally, knowledge maps contribute new specialist-centered or subject-specific information to libraries. Knowledge maps show a universe of information and knowledge in a summarized and orderly manner, helping the institution work more effectively and efficiently. As an example of the proposition, a map of one of the topics carried out at the Argentine Nuclear Regulatory Authority is illustrated. (author)

  20. The severe zonda wind event of 11 July 2006 east of the Andes Cordillera (Argentine): a case study using the BRAMS model

    Science.gov (United States)

    Norte, Federico Augusto; Ulke, Ana Graciela; Simonelli, Silvia Carmen; Viale, Maximiliano

    2008-11-01

    The zonda is a wind that exhibits the so-called foehn effect: a warm, dry, strong wind related to adiabatic compression upon descending in the lee of the Andes. This phenomenon occurs mostly in winter and spring over the entire length of the extratropical Andes. It is frequently detected near the cities of Mendoza and San Juan, the most important urban regions of western Argentina. The aim of this work is to understand why a zonda wind event, occurring on 11 July 2006, reached and maintained the higher category Z4 during several hours. A secondary aim is to evaluate the ability of a Brazilian regional atmospheric modeling system (BRAMS) model to represent the features of this extreme episode and to explore if it can be used to predict a zonda event. The difference found with respect to other severe zonda wind episodes analyzed was that the wind registered the highest category (Z4) with extreme gusts during a long period. This condition was registered in particular on southern plain areas of San Juan province. The phenomenon had a great impact on the community, with residences and buildings being affected or destroyed, trees being felled, power supply and communications being shutdown, and several rural and urban fires being reported. The event was characterized through surface and upper-level information and model results. The synoptic surface and upper-air conditions were those typically associated with a severe zonda wind occurrence: a surface cold front approaching the region, driven by a 500 hPa trough, a strong upper-air jet stream, and a deep low-pressure surface system at higher latitudes over the Atlantic Ocean. The North West Argentine Low in central west Argentina during the following hours could be observed centered approximately at 31°S 66°W. in a few lower latitude than the location observed by National Center of Environmental Prediction (NCEP) reanalysis. On the other hand, it is the authors’ impression that the BRAMS model achieved an acceptable

  1. Post-graduate course on radiation protection and nuclear safety. Vol. 1,2

    International Nuclear Information System (INIS)

    The course handbook on radiation protection and nuclear safety containing two parts some was prepared mainly by scientists of the Nuclear Regulatory Authority (ARN) of the Argentine Republic, under the auspices of the International Atomic Energy Agency. The contents o this handbook have the principals aspects: radiation detection, radio dosimetry, biological effects of the ionizing radiation, occupational exposure, environmental effects, contamination and decontamination, radioactive waste management, transport of radioactive materials, medical and industrial applications and the Argentine regulatory system

  2. Descripción del ARN de transferencia mitocondrial para Serina (UCN de Lutzomyia columbiana (Diptera, Psychodidae Description of the mitochondrial serine transfer RNA (UCN of Lutzomyia columbiana (Diptera, Psychodidae

    Directory of Open Access Journals (Sweden)

    Alveiro Pérez-Doria

    2008-01-01

    Full Text Available Lutzomyia columbiana es un flebotomíneo considerado como vector sospechoso de Leishmania mexicana y Leishmania braziliensis en Colombia. Este insecto pertenece al grupo verrucarum, que incluye algunos taxones isomórficos, lo que ha estimulado la búsqueda de marcadores moleculares que permitan, además de diferenciar las especies, estudiar sus relaciones de parentesco. En este artículo se describe por primera vez la estructura putativa del ARN de transferencia mitocondrial para serina que reconoce el codón UCN (ARNtSer de Lu. columbiana. El ADN genómico fue extraído, amplificado y secuenciado a partir de seis especímenes colectados con cebo humano. La estructura secundaria del ARNtSer fue inferida con el programa tRNAscan-SE 1.21. El gen ARNts consistió de 67 pares de bases (pb, encontrándose un solo haplotipo en los seis individuos secuenciados. El ARNtSer de Lu. columbiana mostró 7 apareamientos intracatenarios en el brazo aceptor del aminoácido, 3 en el brazo dihidrouridina (DHU, 5 en el brazo del anticodón y 5 en el brazo ribotimidina-pseudouridina-citosina (TøC. El tamaño de las lupas correspondió a 5 nucleótidos en la DHU, 7 en la anticodón, 4 en la variable y 7 en la TøC. Lu. columbiana se distingue del resto de especies de Lutzomyia y Phlebotomus secuenciadas a la fecha por la presencia de una guanina en la posición nucleotídica 64, que produce un apareamiento no canónico tipo uracilo-guanina en el brazo aceptor. Se necesitan más estudios para confirmar la utilidad del ARNtSer como marcador molecular para la discriminación de especies de flebotomíneos.The sand fly Lutzomyia columbiana is considered a suspected vector of Leishmania mexicana and Leishmania braziliensis in Colombia. Lu. columbiana belongs to the Lutzomyia verrucarum species group, which included some sibling species. This has motivated the search for molecular markers to distinguish these taxa. In this paper, we described for the first time the

  3. Ensayo preclínico de la vacuna candid #1 producida en Argentina contra la Fiebre Hemorrágica Argentina Preclinical assay of Candid #1 vaccine against Argentine Hemorrhagic Fever made in Argentina

    Directory of Open Access Journals (Sweden)

    Ana M. Ambrosio

    2005-08-01

    Full Text Available Se comparó en cobayos la seguridad, inmunogenicidad y eficacia protectora de un lote de vacuna Candid #1(C#1 fabricada en Estados Unidos de América (EE.UU. y distintos lotes de la misma vacuna fabricados en Argentina (Arg. El lote TSI 5-1-92 (EE.UU. y los lotes Exp Nº 3, 7A y 8A (Arg fueron inoculados (0.5 ml, IM en cobayos de 250-400 g. Para cada ensayo diez animales recibieron solución fisiológica y sirvieron como control. Todos fueron desafiados con la cepa patógena P23790 de virus Junin. Se registró: a temperatura rectal, b peso corporal, c presencia de anticuerpos neutralizantes (AcNT pre y post-vacunación, d respuesta al desafío. Todos los animales vacunados desarrollaron AcNT anti virus Junin (rango = 40- 81920 y sobrevivieron al desafío. En cada grupo control 8/10 animales murieron (día 23.3 ± 5.4 post-desafío. Los cobayos resultaron idénticamente protegidos de una descarga letal de virus Junin por la vacuna importada y los diferentes lotes de C#1 producidos en Argentina.Candid #1 vaccine against Argentine Hemorrhagic Fever produced in USA versus lots of the same vaccine made in Argentina were compared in guinea pigs regarding safety, immunogenicity and protective efficacy against a challenge with pathogenic Junin virus. Lots Nº Exp 3, 7A and 8A of Argentine origin as well as lot TSI 5-1-92 from USA were inoculated in guinea pigs of 250-400 g in two consecutive assays. Ten animals inoculated with saline performed as normal controls in each experiment. Parameters studied were: a temperature; b body weight; c neutralizing antibodies to Junin virus; d response to viral challenge. Animals gained weight and remained normothermic up to the challenge. Guinea pigs that received Candid #1 from any manufacturer elicited neutralizing antibodies to Junin virus (titles from 40 to 81920 and survived to challenge whilst 8/10 animals died in each control group. Data presented demonstrated that Candid #1 vaccines from USA or Argentine

  4. De nouvelles pages du Mucrib can baccağā'ib al-Maġrib d'Abū Ḥāmid al-Ġarnāṭī

    Directory of Open Access Journals (Sweden)

    Ducène, Jean-Charles

    2003-06-01

    Full Text Available The travelogue and collection of marvels of Abū Ḥāmid al-Ġarnāṭī —al-Mucrib c an baccağā'ib al-Maġrib—has only been known until now by the edition in two parts (C. Dubler, 1953 and I. Bejarano, 1991 of the Madrid's manuscript. However this edited text suffers from lacunas and breaks in the narrative, meaning that the original manuscript was defective. But we have found four other manuscripts which enable us to fill in the lacunas. This paper presents the editing of these passages, mainly dealing with the Mediterranean fishes and the author's journey between Egypt and Azerbaydjan.

    El relato de los viajes y la compilación de mirabilia de d'Abū Ḥāmid al- Ġarnāṭī —al-Mucrib can baccağā'ib al-Maġrib— se conocen hasta ahora por la edición, en dos partes (C. Dubler, 1953 y I. Bejarano, 1991, del manuscrito de Madrid. Sin embargo, el texto editado contiene blancos y rupturas en la narración, lo que demuestra que el manuscrito de base era defectuoso. Hemos encontrado cuatro manuscritos que permiten llenar estos blancos. Este artículo presenta la edición de estos pasajes, que hablan principalmente de los peces del Mediterráneo y del viaje del autor entre Egipto y Azerbaiyan.

  5. Complete mitochondrial genome of Argentine shortfin squid (Illex argentines).

    Science.gov (United States)

    Jiang, Lihua; Liu, Wei; Zhang, Jianshe; Zhu, Aiyi; Wu, Changwen

    2016-09-01

    In this study, we determined the complete mitochondrial genome of the Illex argentinus. The genome was 20,278 bp in length and contained 18 protein-coding genes, 23 transfer RNA genes, 2 ribosomal RNA genes and 3 main non-coding regions. The composition and order of genes were different to some other invertebrates. The overall base composition of I. argentinus was A 39.23%, C 17.50%, T 33.71% and G 9.56%, with a highly A + T bias of 72.94%. All of the three control regions (CR) contained termination-associated sequences and conserved sequence blocks. This mitogenome sequence data would play an important role in the taxonomic resolution and phylogeography of the Ommastrephidae. PMID:25707415

  6. Visions of Thomas Jefferson Page, U.S. Navy Commander, through South America: maritime culture and the imperial discourse in the narrative of exploration, “La Plata, The Argentine Confederation and Paraguay (1853 - 1860”

    Directory of Open Access Journals (Sweden)

    Marília Arantes Silva Moreira

    2014-07-01

    Full Text Available The objective of this article is to observe the visions, images and judgments made by the southerner U.S. Navy Commander, Thomas Jefferson Page, through the expedition made in countries of South America, according to his narrative of exploration, “La Plata, The Argentine Confederation and Paraguay (1853-1860”. Predominantly, it analyses the author’s constructed visions over the Paraguayan President, Carlos Antonio López, besides those of the Argentinean President, Justo José de Urquiza. While Page, in one hand, indicted López’s “protectionist” policy on the river navigation in Paraguay, in the other, he intended to flatter the Argentinean Urquiza, as far as he maintained the “international” river navigation liberated under his dominium.

  7. SIG Y TELEDETECCIÓN EN INVESTIGACIONES ARQUEOLÓGICAS DEL CHACO ARGENTINO (GIS and Remote Sensing in the Archaeological Research of the Argentine Chaco

    Directory of Open Access Journals (Sweden)

    Guillermo N. Lamenza

    2015-09-01

    ², and is located in the central-south portion of the continent. Specifically, the Argentine territory of the Gran Chaco stretches from the Pilcomayo River to about –30º latitude, including the provinces of Chaco, Formosa, Santiago del Estero, and partly Salta, Jujuy, Tucuman, La Rioja, Catamarca, San Juan, San Luis, Cordoba, Santa Fe, and Corrientes. The results of the latest archaeological research oriented to the location of prehistoric human settlement and its relationship with the landscape are presented. We proceeded to use Geographic Information Systems (GIS, digital image processing, and remote sensing for the systematization and creation of new information. As a result, an algorithm that integrates archaeological thematic maps and allows for differential potential areas for locating archaeological sites was obtained. This contribution results in an improvement in the regional archaeological research, creating heritage value and, in turn, optimizes the survey of archaeological sites.

  8. ETNOGRAFÍA ARGENTINA: LA CÁTEDRA LIBRE DE MONSEÑOR PABLO CABRERA (1925 / Argentine Ethnography: Monsignor Pablo Cabrera’s free lecture (1925

    Directory of Open Access Journals (Sweden)

    Mariela Eleonora Zabala

    2010-12-01

    the Catholic and conservative personnel from the leading and teaching positions and from the administration, and to ensure access of the “most capable and dignified” professors to the University, in the name of capacity, justice and freedom. This paper explores a direct effect of such initiatives which seem to oppose such goals: the launching of the first free course of Argentine Ethnography by Prior (Monseñor Pablo Cabrera (1857-1936 in 1925. Cabrera, its main professor, was a member of the Catholic Church of Córdoba and of the National Academy of Sciences, the director of the Provincial Historical Museum, and the author of myriad books and articles on Revista de la Universidad and the newspaper Los Principios. ¿Why and how a man of the Church launched this innovation in the anti-clerical context of the University Reform? How did his confessional adscription affect Cabrera’s work in a secular institution and conversely how did his academic stance impinge on his priestly activities? In sum, how could these two realms coexist within the single mind of a man acknowledged as the predecessor of Cordobesa anthropology? Keywords: University reform; teaching; Anthropology; Pablo Cabrera; Córdoba; Argentina. 

  9. EL MOVIMIENTO INSTITUCIONALIZADO: DANZAS FOLKLÓRICAS ARGENTINAS, LA PROFESIONALIZACIÓN DE SU ENSEÑANZA / Institutionalized movement: professional education of argentine folk dances

    Directory of Open Access Journals (Sweden)

    María Belén Hirose

    2010-12-01

    Full Text Available En 1948 se creó la Escuela Nacional de Danzas Folklóricas, como parte del Plan Quinquenal del primer gobierno de Juan D. Perón (1946-1952. Así se dio inicio a la profesionalización de la transmisión y difusión de las danzas folklóricas en su carácter de danzas nacionales, tarea que quedaría concretada con la formación de un cuerpo de profesores nacionales de danza. Este proceso suponía el establecimiento de criterios de selección y transformación de aquellas danzas que se consideraran adecuadas para dar materialidad, mediante coreografías, música, vestimenta y eventos, al sentimiento de la nacionalidad. El folklore académico, en pleno proceso de consolidación como disciplina científica, fue también funcional al proyecto nacional, proveyendo los criterios para la creación del repertorio de danzas que sería enseñado en Buenos Aires y transportado luego a las provincias.En este artículo nos proponemos describir el desarrollo histórico que posibilitó la institucionalización de la enseñanza de las danzas folklóricas en la Argentina, y los efectos de dicha institucionalización. Exploramos el rol que diversos grupos o individuos pertenecientes al ámbito político, cultural y/o académico, asignaron a la enseñanza de las danzas folklóricas en las diferentes etapas del proceso de construcción y fortalecimiento del estado-nación argentino.Palabras clave: danza; folklore; Argentina; docencia; peronismoAbstractIn 1948 Argentina’s National School of Folkloric Dances was created as a part of Juan D. Peron’s “Quinquennial Plan”, launched during his first administration. Thus, the transmission and diffusion of folkloric dances as national symbols began to be professionalized, the development of which was accomplish by the instruction of a troupe of national dance teachers. This process required a repertoire based on the selection and transformation of those dances considered to be adequate expressions of Argentine

  10. Distribución de Lutzomyia longipalpis en la Mesopotamia Argentina, 2010 Distribution of Lutzomyia longipalpis in the Argentine Mesopotamia, 2010

    Directory of Open Access Journals (Sweden)

    Oscar D. Salomón

    2011-02-01

    vector had been previously reported, traps with more samples were obtained with 830 and 126 Lu. Longipalpis trap/site/night respectively. These results show that the vector of urban VL continues spreading in the Argentine territory. Simultaneously, the spread of the parasite and the resulting human VL cases are associated with the dispersion of reservoirs, infected dogs, with or without clinical symptoms or signs, due to human transit.

  11. Age and growth of the Argentine hake Merluccius hubbsi Marini, 1933 in the Brazilian South-Southeast Region during 1996-2001

    Directory of Open Access Journals (Sweden)

    André M. Vaz-dos-Santos

    2007-09-01

    Full Text Available This is the first detailed study on the age and growth of the Argentine hake Merluccius hubbsi in Brazilian waters. A total of 3,651 specimens obtained from surveys and sampling landings using trawlers and long-lines in the South-Southeast Region (21ºS to 34ºS between 1996 and 2001 were analyzed. Readings of sliced and burned otoliths were conducted on 686 individuals (397 females, 129 males and 160 young - sex not identified, identifying opaque and translucent zones. Marginal increment and edge type percentage methods were used for validation, resulting in one ring per year, formed during summer-autumn. Fish with no more than eight rings and six years of age were found, the two first rings after the core being formed during the first year. Back-calculation methods were applied to length/age data and the parameters of von Bertalanffy's growth model were fitted based on average length per ring. The value of maximum theoretical length varied between 470.27 mm and 807.40 mm; growth coefficient varied from 0.1657 to 0.3555 year-1 and the theoretical age at length zero between -1.2846 and -0.4552 years. Growth of females and males differed significantly. The techniques applied and the results obtained are discussed and compared with studies on hake conducted in Uruguay and Argentina, providing important information for the management of the species in Brazil, where it presents clear signs of overexploitation.Este é o primeiro estudo detalhado sobre a idade e o crescimento da merluza Merluccius hubbsi no Brasil. Foram analisados 3.651 espécimes obtidos em cruzeiros de pesquisa e provenientes das frotas de arrasto e espinhel de fundo da região Sudeste-Sul do Brasil (21ºS a 34ºS entre 1996 e 2001. Leituras de secções transversais de otólitos (corte, polimento e queima foram realizadas para 686 indivíduos (397 fêmeas, 129 machos e 160 jovens com sexo não identificado, identificando-se zonas opacas e translúcidas. Foram calculados o

  12. Uranium production cycle: Argentine situation

    International Nuclear Information System (INIS)

    Full text: In Argentina, nuclear power plants at Atucha and Embalse are in operation with very high plant load factors. Atucha II is under construction with the expected start-up in 2012. The long term nuclear power plan of Argentina envisages additional seven units in the next 25 years. It is estimated that the cumulative uranium requirements for these nuclear power plants will be about 30000 tU. However the estimated uranium reserves of Argentina at present in different categories is only approximately 15000 tU. Sierra Pintada mine, south west of the Mendoza province, was in production from 1975 to 1995 and was kept in stand-by from 1995. Quartz, feldspar, calcite, and kaolinite are the most abundant minerals in the ore. The rock is formed by moderately well-sorted grains of quartz, feldspar, and rock fragments, all cemented by calcite with minor clay replacement. The mine is an open pit and at 0.025%U cut off about 6500 tU reserves were estimated. Average grade is 0.076% U. The barren - ore rock ratio is 10:1 and barren benches are 10m and ore benches 2.5 m in height. So far 13400000 m3 of barren rock, 376000 t low grade ore and 2500000t plant feed ore has been mined out. The Sierra Pintada mine is expected to restart operations by 2010. The major problems in restarting this mine are the mining laws, community issues and apprehensions of the local tourism and wine industries. The paper will discuss the mining law in Argentina vis-a-vis the uranium situation and exploration programme for the the next years. (author)

  13. Intergovernmental fiscal relations, 'Argentine Style'

    OpenAIRE

    Gordin, Jorge P.

    2006-01-01

    This study assesses the explanatory power of two competing views about intergovernmental fiscal transfers; one emphasizing the traditional neoclassical approach to federal-subnational fiscal relations and the other suggesting that transfers are contingent on the political fortunes and current political vulnerability of each level of government. These models are tested using data from Argentina, a federation exhibiting one of the most decentralised fiscal systems in the world and severe imbala...

  14. Flora apícola primaveral en la región del Monte de la Provincia de La Pampa (Argentina Springtime beekeeping flora in the Monte region of La Pampa province (Argentine

    Directory of Open Access Journals (Sweden)

    Ofelia Naab

    Full Text Available Con el fin de evaluar la flora utilizada por Apis mellifera L. fueron analizadas muestras de miel inmadura y cargas corbiculares de dos apiarios demostradores ubicados en la Provincia Fitogeográfica del Monte, Provincia de La Pampa. Las muestras se extrajeron periódicamente durante la primavera y fueron analizadas aplicando las técnicas melisopalinológicas convencionales. La vegetación arbustiva nativa presentó la mayor abundancia y el mayor número de especies en óptima floración en noviembre. Las familias más representadas en los espectros polínicos de mieles inmaduras y de cargas corbiculares fueron: Zygophyllaceae ( Larrea divaricata Cav., Rhamnaceae ( Condalia microphylla Cav., Solanaceae ( Lycium sp., Asteraceae ( Senecio subulatus Don ex Hook. & Arn. y Verbenaceae ( Glandularia sp. - Junellia sp. - Verbena sp.. Los análisis polínicos evidenciaron que las especies nativas ofrecieron al mismo tiempo recursos nectaríferos y poliníferos sin embargo se observó una alta selección de pocos recursos florales. La oferta floral produjo mieles monoflorales de L. divaricata , C. microphylla y Lycium sp. Ambos apiarios pudieron diferenciarse teniendo en cuenta la diversidad de tipos polínicos y la presencia de ciertos taxones en las categorías de polen dominante y secundario.In order to evaluate the utilized flora by Apis mellifera L. we analized inmmature honey samples and corbicular pollen loads from two demonstrative apiaries located in the Monte Phytogeographical Province of La Pampa. The samples were periodically collected during springtime and were analyzed using the conventional melissopalynological techniques. The native flora presented the major abundance and the highest number of species at an optimum flowering level in november. The most represented families in the pollen spectrum of immature honeys and corbicular loads were: Zygophyllaceae ( Larrea divaricata Cav., Rhamnaceae ( Condalia microphylla Cav., Solanaceae

  15. Anatomical and physiological characteristics of two argentine wheat cultivars Características anatômicas e fisiológicas de dois cultivares argentinos de trigo

    Directory of Open Access Journals (Sweden)

    Raúl Roberto Filgueira

    2003-08-01

    Full Text Available Two Argentine field grown wheat cultivars (Triticum aestivum L., Buck Cencerro (BC with traditional germoplasm, and Buck Pucará (BP with Mexican germoplasm, have been investigated in order to compare anatomical and physiological characteristics of the flag leaf measured in heading (stage E59, anthesis (stage E69 and kernel water ripe (stage 71. In both cultivars, photosynthetic rate was not different for the same phenological stage, except for E71. Averages in stage E59 were higher than stages E69 and E71 for both cultivars (22.70, 18.40 and 10.40 µmol m-2 s-1 for BP and 23.82, 18.41 and 8.28 µmol m-2 s-1 for BC, respectively. Transpiration rates were higher in BP (5.0, 5.6 and 4.89 mmol m-2 s-1 than BC (3.3, 4.4 and 2.57 mmol m-2 s-1 for stages E59, E69 and E71, respectively. Consequently, instantaneous water use efficiencies were higher in BC than in BP. No difference between cultivars and phenological stages was observed in specific surface area (mesophyll area per unit mass determined by physical adsorption of nitrogen at low temperature (78° K; the mean was 8.9 m² g-1. It was similar as values found in previous works, in others T. aestivum L. and greater than the values found for Ligustrum lucidum Aiton, by the same technique. Differences could be attributed to the roughness of the cell wall and the dimensions of the cell itself. No positive correlation between specific surface and photosynthetic rate was observed neither for cultivars nor for phenological stages.Dois cultivares argentinos de trigo (Triticum aestivium L, Buck Cencerro (BC, com germoplasma tradicional e Buck Pucará (BP, com germoplasma mexicano, foram pesquisados para comparar as características anatômicas e fisiológicas da folha bandeira medida no espigamento (estádio E59, na antese (estádio E69 e na fase de grão aquoso completo (estádio E71. Nos dois cultivares, a taxa fotossintética foi semelhante no mesmo estágio fenológico, exceto no E71. As médias no

  16. LA ACTIVACIÓN DE LA VÍA DE SEÑALIZACIÓN PI3K/AKT POR EL FACTOR DE CRECIMIENTO SIMILAR A LA INSULINA TIPO II ESTIMULA LA EXPRESIÓN DEL mARN DE LA METALOPROTEINASA 9 EN CÉLULAS DE CORIOCARCINOMA

    Directory of Open Access Journals (Sweden)

    Martha Pinzón

    2010-02-01

    Full Text Available Las metaloproteinasas 2 y 9 (MMP-2 y MMP-9 y el inhibidor-1 de MMP (TIMP-1 podrían contribuir a la regulación del comportamiento invasivo de las células trofoblásticas, efecto que podría ser mediado por el factor de crecimiento similar a la insulina tipo II (IGF-II, el cual regula el desarrollo y la función del trofoblasto en la interfase materno-fetal. El objetivo de este estudio fue investigar el rol de la vía de señalización PI3K/AKT activada por IGF-II en la expresión de MMP-2 y MMP-9 involucradas en el proceso de invasión en la línea celular JEG-3, de coriocarcinoma humano. La expresión del mARN de MMP-2, MMP 9 y TIMP-1 fue evaluada, en dichas células, por la técnica de RT-PCR empleando diferentes dosis de IGF-II y diferentes condiciones, mientras que la vía de señalización fue evaluada usando la técnica de Western blot. Se encontró que el IGF-II no contribuye a la proliferación de las células trofoblásticas; sin embargo, este promueve la expresión del mARN de MMP-9 y TIMP-1 pero no de MMP-2, de forma dependiente de la dosis. El efecto en la expresión de MMP-9 es mediado a través de IGF-II por la activación de la vía de señalización PI3K/ AKT después de la fosforilación del receptor de IGF-I (IGF-IR. De acuerdo con los resultados, se propone un modelo en el cual la interacción de IGF-II con IGF-IR conduce a la activación de PI3K/AKT y la subsecuente expresión y activación de MMP-9. Esta activación es un requisito esencial para el proceso invasivo.

  17. The assessment of character´s virtues and strengths in Argentine children: Adaptation and validation of the Inventory of Virtues and Strengths for Children (I.V&S. Children

    Directory of Open Access Journals (Sweden)

    Aldana Sol Grinhauz

    2014-03-01

    Full Text Available This study aimed the adaptation and validation of the Inventory of Virtues and Strengths (I.V.&S., Cosentino & Castro Solano, 2008 in children aged 10-12 years. The I.V.&S. Children is a useful tool for assessing human virtues and strengths according to Peterson and Seligman´s (2004 six virtues and 24 strengths classification of character. 518 children (254 males and 263 females between 10 and 12 years and attending to public and private schools of the City of Buenos Aires (Argentina were part of this study. Regarding the I.V.&S. Children factor´s structure, the exploratory factor analysis allowed the extraction of six factors that accounted for 46.15 % of the variance. Confirmatory factor analysis showed an adequate fit to the model. As to convergent validity evidence, statistically significant and positive correlations were found between scores by I.V&S. Children and Children’s Social Desirability Scale (EDESI, Lemos, 2005, the Argentine Children’s Personality Questionnaire (ICSC, Lemos, 2006 and the question about life satisfaction: “How satisfied or happy are you with your life?”.

  18. [First Argentine consensus guidelines for in vitro antimicrobial susceptibility testing of clinically relevant anaerobic bacteria in humans/ Anaerobic Subcommittee of the Asociación Argentina de Microbiología].

    Science.gov (United States)

    Legaria, María C; Bianchini, Hebe M; Castello, Liliana; Carloni, Graciela; Di Martino, Ana; Fernández Canigia, Liliana; Litterio, Mirta; Rollet, Raquel; Rossetti, Adelaida; Predari, Silvia C

    2011-01-01

    Through time, anaerobic bacteria have shown good susceptibility to clinically useful antianaerobic agents. Nevertheless, the antimicrobial resistance profile of most of the anaerobic species related to severe infections in humans has been modified in the last years and different kinds of resistance to the most active agents have emerged, making their effectiveness less predictable. With the aim of finding an answer and for the purpose of facilitating the detection of anaerobic antimicrobial resistance, the Anaerobic Subcommittee of the Asociación Argentina de Microbiología developed the First Argentine consensus guidelines for in vitro antimicrobial susceptibility testing of clinically relevant anaerobic bacteria in humans. This document resulted from the compatibilization of the Clinical and Laboratory Standards Institute recommendations, the international literature and the work and experience of the Subcommittee. The Consensus document provides a brief taxonomy review, and exposes why and when anaerobic antimicrobial susceptibility tests should be conducted, and which antimicrobial agents can be used according to the species involved. The recommendations on how to perform, read and interpret in vitro anaerobic antimicrobial susceptibility tests with each method are exposed. Finally, the antibiotic susceptibility profile, the classification of antibiotics according to their in vitro activities, the natural and acquired mechanisms of resistance, the emerging resistance and the regional antibiotic resistance profile of clinically relevant anaerobic species are shown.

  19. [First Argentine consensus guidelines for in vitro antimicrobial susceptibility testing of clinically relevant anaerobic bacteria in humans/ Anaerobic Subcommittee of the Asociación Argentina de Microbiología].

    Science.gov (United States)

    Legaria, María C; Bianchini, Hebe M; Castello, Liliana; Carloni, Graciela; Di Martino, Ana; Fernández Canigia, Liliana; Litterio, Mirta; Rollet, Raquel; Rossetti, Adelaida; Predari, Silvia C

    2011-01-01

    Through time, anaerobic bacteria have shown good susceptibility to clinically useful antianaerobic agents. Nevertheless, the antimicrobial resistance profile of most of the anaerobic species related to severe infections in humans has been modified in the last years and different kinds of resistance to the most active agents have emerged, making their effectiveness less predictable. With the aim of finding an answer and for the purpose of facilitating the detection of anaerobic antimicrobial resistance, the Anaerobic Subcommittee of the Asociación Argentina de Microbiología developed the First Argentine consensus guidelines for in vitro antimicrobial susceptibility testing of clinically relevant anaerobic bacteria in humans. This document resulted from the compatibilization of the Clinical and Laboratory Standards Institute recommendations, the international literature and the work and experience of the Subcommittee. The Consensus document provides a brief taxonomy review, and exposes why and when anaerobic antimicrobial susceptibility tests should be conducted, and which antimicrobial agents can be used according to the species involved. The recommendations on how to perform, read and interpret in vitro anaerobic antimicrobial susceptibility tests with each method are exposed. Finally, the antibiotic susceptibility profile, the classification of antibiotics according to their in vitro activities, the natural and acquired mechanisms of resistance, the emerging resistance and the regional antibiotic resistance profile of clinically relevant anaerobic species are shown. PMID:21491069

  20. Fsiles de novela: paleontologa y literatura en la argentina de fines del siglo XIX y principios del siglo Fossils as fictional characters: Argentine paleontology and literature in the late 19th century and the beginnings of the 20th century

    Directory of Open Access Journals (Sweden)

    Eduardo G. Ottone

    2011-09-01

    Full Text Available La literatura argentina de la segunda mitad del siglo XIX y comienzos del siglo XX refiri la presencia de mamferos fsiles cenozoicos en las pampas. Gliptodontes y megaterios devinieron en personajes de los textos de Eduardo Ladislao Holmberg, William Henry Hudson, Eduarda y Lucio Victorio Mansilla, Leopoldo Lugones, Geoffroy Franois Daireux, Horacio Quiroga, Hugo Wast, Ezequiel Martnez Estrada, Leopoldo Marechal y Manuel Mujica Lainez. Estos autores contextualizaron a los vertebrados fsiles en escenas humorsticas o realistas, como iconos de la grandeza de la Pampa y la nacin o parodia de estereotipos culturales locales.Argentine literature from the second half of the 19th century and the early 20th century referred to the presence of Cenozoic fossil mammals in the pampas. Glyptodons and megatheriums became characters in the texts of Eduardo Ladislao Holmberg, William Henry Hudson, Eduarda y Lucio Victorio Mansilla, Leopoldo Lugones, Geoffroy Franois Daireux, Horacio Quiroga, Hugo Wast, Ezequiel Martnez Estrada, Leopoldo Marechal and Manuel Mujica Lainez. These authors contextualize the fossil vertebrates in humoristic or realistic scenes, as icons of the greatness of the nation and the Pampa, or as a parody of local cultural stereotypes.

  1. Marcadores virológicos no convencionales en pacientes infectados con el virus de la inmunodeficiencia humana: ADN HIV-T, ADN HIV- 2LTR y ARN de HIV Non conventional virological markers in HIV-infected patients: T-HIV DNA, 2LTR-HIV DNA and HIV RNA

    Directory of Open Access Journals (Sweden)

    Rosana Gariglio

    2004-10-01

    Full Text Available La terapia antirretroviral de alta eficacia (TAAE induce una reducción marcada y persistente de la viremia plasmática, contribuyendo a disminuir la mortalidad y morbilidad de los pacientes HIV-positivos. Así, la carga viral (CV es el método de referencia para evaluar la eficacia terapéutica. Sin embargo, aun en presencia de una TAAE eficiente no se ha logrado la erradicación viral. En este estudio analizamos la presencia del ADN total de HIV (ADN HIV-T, del ADN no integrado con 2LTR (ADN HIV-2LTR y del ARN de HIV, en un grupo de 55 pacientes HIV-positivos en distintos estadios clínicos, con y sin TAAE, mediante ensayos de PCR con revelado colorimétrico en microplaca, optimizados en nuestro laboratorio. La sensibilidad clínica del ARN del HIV fue evaluada con el bDNA, resultando del 74% y del 64%, respectivamente, con una concordancia del 85%. Este ensayo podría ser utilizado en el seguimiento de pacientes bajo TAAE. El ADN HIV-2LTR resultó positivo en el 54% aunque estuvo ausente en pacientes con elevada CV. Este marcador se consideraba un producto lábil y su presencia se asociaba a infección reciente. Sin embargo, actuales evidencias ponen en discusión su estabilidad por lo que su significado clínico debe ser reconsiderado. La ausencia del ADN HIV-2LTR en pacientes con CV detectable puede relacionarse con la heterogeneidad de la secuencia utilizada para su detección. El ADN HIV-T estuvo presente en el 100% de las muestras y resultaría relevante como marcador de remisión cuando se dispongan de terapias que efectivamente erradiquen la infección.Highly active antiretroviral therapy (HAART induces a persistent reduction of the plasmatic viremia, contributing to decrease mortality and morbidity of infected people with human immunodeficiency virus (HIV. Thus, viral load (VL is the reference method to evaluate therapy effectiveness. However, even in the presence of efficient HAART viral eradication was yet not achieved. In this

  2. El poshumanismo apocalíptico en la novela negra argentina contemporánea: Ciudad santa y 77 Apocalyptic Posthumanism in Contemporary Argentine Hardboiled: Ciudad santa and 77

    Directory of Open Access Journals (Sweden)

    Osvaldo Di Paolo

    2012-01-01

    Full Text Available El fin del mundo es un arquetipo milenario, el cual se ha acentuado en tiempos recientes. La obsesión actual con la destrucción del planeta también se evidencia en el género negro. Gran parte de la novela negra hispanoamericana del siglo XXI presenta una visión poshumanista y apocalíptica que revela la descentralización del individuo y manifiesta el caos, el miedo y el enfrentamiento de fuerzas opuestas que conllevan a la destrucción del género humano. Para demostrar mi tesis analizo dos novelas argentinas y ganadoras del Premio Hammett: Ciudad santa (2010 de Guillermo Orsi y 77 (2009 de Guillermo Saccomanno. De cada texto, presento un resumen general, extraigo las particularidades estructurales de la novela negra y revelo la tendencia poshumanista y apocalíptica inherente a los mismos, junto con sus implicaciones sociales.The end of the world is a millennial archetype, which has become quite popular in recent times. The current obsession with the destruction of the planet is also present in hard-boiled literature. A great number of the XXI Century hard-boiled genre presents a posthumanist and apocalyptic view that reveals the decentralization of man and manifests chaos, fear, and the clash of opposite forces that lead to the destruction of the human race. In order to prove my thesis, I analyze two argentine novels, winners of the Hammett award,: Ciudad santa (2010 by Guillermo Orsi and 77 (2009 by Guillermo Saccomanno. From each text, I present a summary of the story, draw the structural characteristics of the hard-boiled, and reveal the posthuman and apocalyptic tendencies in the novels, along with the social implications they convey.

  3. Wild Bulls, Discarded Foreigners, and Brash Champions: US Empire and the Cultural Constructions of Argentine Boxers Toros salvajes, extranjeros descartados y campeones insolentes: Estados Unidos y la construcción cultural de los boxeadores argentinos

    Directory of Open Access Journals (Sweden)

    David Shenin

    2008-09-01

    .0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;}

    With the exception of Hollywood films, there has been no more intense point of cultural contact between Argentina and the United States than boxing. This article considers two intertwined topics. The first is the construction of the imagery of Argentine boxers in the United States and the varieties of Argentine boxers’ immigrant experience in North America. Second, this article will argue that the presence of Argentine boxers in the United States forged a sense in Argentina that the former were leading actors on the American boxing scene. This, in turn, shaped Argentine boxing cultures and self images.

  1. 西南大西洋公海阿根廷滑柔鱼渔业生物学初探%Fishery biological properties of Illex argentines in the High Sea of Southwest Atlantic Ocean

    Institute of Scientific and Technical Information of China (English)

    朱文斌; 陈峰; 张龙; 徐汉祥; 张洪亮

    2014-01-01

    Fishery biology including catch stock composition, morphological properties, sex ratio, nidamen-tal gland and gonad development of squid Illex Argentines were analyzed based on the 666 samples from the China’s fishing boat in the Southwest Atlantic Ocean during January to April 2012 . The results showed that the mantle length ranged from 91 mm to 351 mm, showing a bimodal distribution, the average mantle length of females and males was 243. 6 mm and 214. 5 mm respectively, meaning that the size of female individuals was significantly bigger than that of males. The sex ratio of female to male was 1. 26:1, and the females domina-ted in this stock. The sexual maturity was mainly in phase Ⅱ (57. 9%) , but the proportion of mature indi-viduals above phase Ⅲ reached 42. 1%. The sexual maturity and nidamental gland development of female were related to the individual size and further researches suggested that nidamental gland length-weight pres-ented a power function, and nidamental gland index ( NGI) of mature individuals was significantly greater than for the immature individuals. The male gonad gradually developed with its body size. According to body size and sexual maturity, the squid captured during the investigation was mainly South Patagonic Stock ( SPS) , mixed with a small amount of Summer-Spawning Stock ( SSS) .%根据2012年1-4月西南大西洋公海鱿钓渔船随机采集的666尾阿根廷滑柔鱼样本,对其鱿钓渔获的群体组成、形态特征、雌雄性比、缠卵腺及性腺发育等渔业生物学进行分析。结果显示:调查期间鱿钓渔业阿根廷滑柔鱼渔获群体胴长为91~351 mm,呈双峰分布,雌、雄性平均胴长分别为243.6 mm 和214.5 mm,雌性个体显著大于雄性;雌雄性比为1.26:1,以雌性个体为主;雌性群体性成熟以Ⅱ期为主(57.9%),Ⅲ期以上个体为42.1%;雌性性成熟度、缠卵腺发育程度与个体大小密切相关,进一步研究认为缠卵腺长与其重量存在

  2. Biological patterns of the Argentine shortfin squid Illex argentinus in the slope trawl fishery off Brazil Patrones biológicos del calamar argentino Illex argentinus en la pesquería de arrastre en el talud continental de Brasil

    Directory of Open Access Journals (Sweden)

    José Angel Alvarez Perez

    2009-01-01

    Full Text Available Commercial exploitation of the Argentine shortfin squid (Illex argentinus was virtually non-existent in Brazilian waters until 2000 when foreign trawlers initiated their operations on slope grounds as part of a government-induced chartering program. Since then, the species has been included among the targets of a developing slope trawl fishing off southeastern and southern Brazil. Biological samples were collected from commercial catches of 25 national and seven foreign (chartered trawlers between 23°-33°S and 170-740 m depth. These samples represent two periods of the commercial exploitation of Illex argentinus in Brazil: 2001-2003, when both chartered and national trawlers operated simultaneously, and 2006-2007, when only national vessels continued to exploit I. argentinus along with other slope stocks. Catches contained immature and ma-turing squid throughout the year, as well as at least two distinct, fully mature, spawning groups: one composed of small-sized males and females present year-round on the shelf-break/ upper slope (La explotación comercial del calamar argentino (Illex argentinus no existía en aguas brasilenas hasta el año 2000, cuando buques extranjeros iniciaron sus operaciones en el talud como parte de un programa gubernamental de arrendamiento. Desde entonces la especie forma parte de un conjunto de recursos que han motivado el desarrollo de una pesquería de arrastre en el talud del sur y sureste de Brasil. Se colectaron muestras biológicas de las capturas comerciales de 25 buques arrastreros nacionales y siete extranjeros entre los paralelos 23°-33°S y en profundidades de 170 a 740 m. Estas muestras representaron dos periodos de la explotación comercial de I. argentinus en Brasil: 2001-2003, cuando buques nacionales y extranjeros operaron simultáneamente, y 2006-2007 cuando sólo buques nacionales permanecieron explotando el calamar argentino en conjunto con otros recursos del talud. Las capturas estuvieron

  3. Modificación de la fertilidad por prácticas de manejo del suelo en Famatina, La Rioja, Argentina Modification of fertility by agronomic practices on the soil in Famatina, La Rioja, Argentine

    Directory of Open Access Journals (Sweden)

    Normando Villafañe Vega

    2010-04-01

    Full Text Available En Famatina, La Rioja (Argentina en cultivo de ajo (Allium sativum L. en suelo franco arenoso se dispusieron melgas con los tratamientos de suelo siguientes: T1 = 2 años consecutivos sin fertilizantes ni abono después de 1 año sin cultivar; T2 = 2 años consecutivos con fertilizantes químicos (FQ y 1 año previo con cultivo de ajo; T3 = 1 año con FQ más 23 t/ha de abono orgánico caprino precedido de un cultivo de avena (Avena sativa L.; T = 2 años consecutivos con FQ y abono caprino (23 t/ha en suelo cultivado previamente con avena; T5 = 1 año con FQ después de 2 años cultivado con avena; T6 = 1 año con FQ y 2 años previos con cultivo de alfalfa (Medicago sativa L.. Se tomaron muestras de suelo a la siembra y en la cosecha hasta 80 cm de profundidad. Se empleó el análisis de componente principal (ACP para las variables de suelo. Los contenidos de materia orgánica, NO3 -, N total, P y K fueron favorecidos por los T3 y T4 en comparación con el T2. El cultivo de alfalfa favoreció los menores valores de pH (6.2 y conductividad eléctrica (CE asociados con valores máximos de nitratos entre 30 y 80 cm de profundidad. En esta profundidad, los T3 y T4 presentaron contenidos de nitrato similares a los de T2 y T5. En el T2, después de 2 años el pH cambió de 7.2 a 6.8, el contenido de C de 0.6 a 0.4% y aumentó la CE de 1.9 a 2.8 dS/m.The study was carried out with garlic (Allium sativum L. cropped in a sandy loam soil in Famatina, La Rioja Argentine. Strips of soil were used with the following soil treatments: T1, a 2-year period with no fertilizers or manure after one year without cropping; T2, a 2-year period with chemical fertilizers (CF preceded by garlic.; T3, combined use of CF and 23 t ha-1 of goat feces for a 1-year period preceded by oats (Avena sativa L.; T4 pooled CF and 23 t ha-1 of goat feces for a 2-year period preceded by oats; T5 a 1-year period with CF came after an oat crop of two years; and T6, use of CF following

  4. Distributional patterns of Argentine marine fishes

    OpenAIRE

    Menni, Roberto Carlos; López, Hugo Luis

    1984-01-01

    Durante un crucero de investigación pesquera llevado a cabo por el B/I "Shinkai Maru" (agosto-setiembre, 1978) los autores identificaron 86 especies de peces capturados en 52 estaciones en una amplia zona del Mar Argentino. Los datos fueron analizados con coeficientes de similitud, "cluster analysis" y análisis de la coordenada principal. Para todos los métodos utilizados se obtuvieron coeficientes de correlación cofenética muy elevados, lo que indica un grado de distorsión muy bajo en los fe...

  5. First echoes of relativity in Argentine astronomy

    CERN Document Server

    Gangui, Alejandro

    2008-01-01

    We consider the attitude of astronomers in Argentina in connection with the new problems posed by relativity theory, before and after GR was presented. We begin considering the sequence of "technical" publications that appeared and use it to attempt to identify who were the relativity leaders and authors in the Argentina scientific community of the 1910-1920s. Among them there are natives of Argentina, permanent resident scientists, and occasional foreign visitors. They are either academic scientists, or high school teachers; we leave aside the {\\it philosophers} and the {\\it aficionados}. We discuss the scientific facts and publications they handled, the modernity of their information and the "language" they use to transmit their ideas. Finally, we consider astronomers proper; first Charles Perrine, an astronomer interested in astrophysics, contracted by the government of Argentina in the USA as director of its main observatory. He became interested in testing the possible deflection of light rays by the Sun...

  6. Latest Adjustment of the Argentine Height System

    Science.gov (United States)

    Piñón, D. A.; Cimbaro, S. R.; Sanchez, R. E.

    2013-05-01

    For over 70 years the National Geographic Institute of Argentina (NGI) has conducted a systematic project to building benchmarks throughout the country, which have been measured with spirit leveling and gravimetry techniques. The measurements were undertaken on a total of approximately 18,000 benchmarks, which define the High Precision Leveling Network of Argentina. The first adjustment of this network took place in 1971. This assignment was given to the Defense Mapping Agency of the United States of America (DMA). Leveling lines that were built and measured after the year 1971 were adjusted to this original network. It was of great importance to perform a new adjustment calculation with modern techniques to update the entire network. Some modern tools worth mentioning are: gravity interpolation using prediction method and topographic correction calculation by the Hammer method using SRTM model. All historical field books were digitalized to retrieve the information corresponding to the spirit leveling, from which it was then possible to calculate geopotential difference between the nodes, using the gravity acceleration values over the benchmarks. Subsequently, by the method of least squares it was possible to calculate the geopotential numbers of the nodes, and then the orthometric height of all the benchmarks. The recommendations of the Working Group III of SIRGAS (Geodetic Reference System for the Americas) were taken into account in relation to this task. The development of this paper shows the results that have been obtained so far in the development of the New Height System for Argentina.

  7. The Southern Argentine Agile Meteor Radar (SAAMER)

    Science.gov (United States)

    Janches, Diego

    2014-11-01

    The Southern Argentina Agile Meteor Radar (SAAMER) is a new generation system deployed in Rio Grande, Tierra del Fuego, Argentina (53 S) in May 2008. SAAMER transmits 10 times more power than regular meteor radars, and uses a newly developed transmitting array, which focuses power upward instead of the traditional single-antenna-all-sky configuration. The system is configured such that the transmitter array can also be utilized as a receiver. The new design greatly increases the sensitivity of the radar enabling the detection of large number of particles at low zenith angles. The more concentrated transmitted power enables additional meteor studies besides those typical of these systems based on the detection of specular reflections, such as routine detections of head echoes and non-specular trails, previously only possible with High Power and Large Aperture radars. In August 2010, SAAMER was upgraded to a system capable to determine meteoroid orbital parameters. This was achieved by adding two remote receiving stations approximately 10 km away from the main site in near perpendicular directions. The upgrade significantly expands the science that is achieved with this new radar enabling us to study the orbital properties of the interplanetary dust environment. Because of the unique geographical location, SAAMER allows for additional inter-hemispheric comparison with measurements from Canadian Meteor Orbit Radar, which is geographically conjugate. Initial surveys show, for example, that SAAMER observes a very strong contribution of the South Toroidal Sporadic meteor source, of which limited observational data is available. In addition, SAAMER offers similar unique capabilities for meteor showers and streams studies given the range of ecliptic latitudes that the system enables detailed study of showers at high southern latitudes (e.g July Phoenicids or Puppids complex). Finally, SAAMER is ideal for the deployment of complementary instrumentation in both, permanent and campaign, operational mode. Results from various radar meteor investigations as well as radar/optical observation campaign will be presented in this paper.

  8. Microsoft Eesti juht Arne Kaasik : olulised on nii kodu- kui ärikliendid / Arne Kaasik ; interv. Asso Puidet

    Index Scriptorium Estoniae

    Kaasik, Arne

    2005-01-01

    Microsofti Eesti esinduse juht firma tegevusvaldkondadest, heategevusest, ettevalmistatavast lepingust Eesti valitsusega, suhetest kodukasutajate, ettevõtete ja partnerfirmadega ning tarkvara eestindamisest

  9. Regulationist Macro-Models for Developing Countries. An Application to the Argentine New Development Pattern Modèles macroéconomiques régulationistes pour des pays émergeant. Une application au nouveau mode du développement argentin Modelos macroeconómicos regulacionistas para países en desarrollo. Una aplicación al nuevo modelo de desarrollo argentino

    Directory of Open Access Journals (Sweden)

    Demian Tupac Panigo

    2012-05-01

    Full Text Available In this paper we present a regulationst structural macroeconometric model (RSMM to develop economic forecasts and examine different policy outcomes in Argentina. RSMM main characteristics involve cumulative causation dynamics where income distribution, macroeconomic volatility, credit rationing and productive heterogeneity conjugates to obtain a new instrument to precisely examine key macroeconomic and social variables. Available empirical results indicates: 1 the existence of dynamic increasing returns to scale; 2 the relevance of income distribution for investment, tax collection and public expenditures; 3 the significant influence of macroeconomic volatility on employment generation; 4 the strong effect of investment (positive on imports and domestic consumption (negative on exports; and 5 that price dynamics depends on wages and demand factors but also (and predominantly on external variables and income policies.Dans ce papier, nous présentons un modèle macroéconomique structurel régulationiste pour développer des projections et examiner l’impact des différentes mesures de politique économique en Argentine. Les caractéristiques les plus importantes du modèle déterminent une dynamique de causalité cumulative où la répartition de revenue, la volatilité macroéconomique, le rationnement du crédit et l’hétérogénéité productive s’amalgament afin d’obtenir un nouveau instrument analytique pour examiner l’évolution des variables macro-sociales clés.L’évidence empirique utilisée avec le modèle montrent : 1 l’existence des économies d’échelle dynamiques ; 2 l’importance de la répartition de revenue pour l’investissement et les variables fiscales ; 3 la relevance de la volatilité macroéconomique pour l’évolution de l’emploi ; 4 l’effet significatif (et positif de l’investissement sur les importations et de la consommation (négatif sur les éxportations ; et 5 que la dynamique interne des

  10. Relegation, movements, conflict. Notes to think urban social question in contemporary Argentine Relegación, desplazamiento, conflicto. Notas para pensar la cuestión social urbana en la Argentina contemporánea

    Directory of Open Access Journals (Sweden)

    Daniela Soldano

    2008-09-01

    Full Text Available This paper addresses the ‘‘social question’’ and the problem of inequality in contemporary Argentine. It is based on a qualitative research on processes of territorial and socio-economic relegation in the metropolitan area of Buenos Aires city and the way they shape the identity of its inhabitants. In particular, it focuses on ‘‘recuperadores urbanos de residuos’’ (impoverished trash pickers who pick garbage
    that can be sold and recycled and the type of exchanges in which they engage in their movements –usually conflictive– along the urban space. These movements from ‘‘confined’’ areas, together with the
    social relations they promote between different social sectors, shed light on the workings of a society increasingly defined by social differentiation.

  1. Les « clubs de troc » argentins : un microcosme monétaire Credito dépendant du macrocosme Peso The Argentinian Barter clubs: a monetary microcosm Credito dependent of the monetary macrocosm Peso Los clubes de trueque argentinos: un microcosmos monetario. Crédito dependiente del macrocosmos Peso

    Directory of Open Access Journals (Sweden)

    Pepita Ould-Ahmed

    2010-06-01

    Full Text Available Cet article s’intéresse à un cas concret de système monétaire local, celui des « clubs de troc » développés en Argentine à partir de 1995. Contrairement à ce que leur nom laisse penser, les « clubs de troc » désignent des espaces marchands communautaires, à l’intérieur desquels les transactions économiques sont réglées en credito, monnaie-papier interne et non convertible avec la monnaie officielle. La question que pose ce type d’expérience monétaire parallèle est de savoir pourquoi et sous quelles conditions cette monnaie privée non convertible avec la monnaie officielle parvient à être acceptée. Est-ce que ce micro-système monétaire peut fonctionner de manière indépendante et cloisonnée, ou bien a-t-il besoin de nouer des rapports avec le macro-système monétaire officiel ? Telles sont les questions auxquelles cet article se propose de répondre.This paper examines a concrete case of local currency systems, the Argentine “barter clubs” developed from 1995. “Barter club” denotes a place of market exchange, within which economic transactions are paid for using an internal paper currency, the “credito”, issued by the founders of these clubs and not convertible with the official currency. Its starting point is to wonder why and under what conditions this private currency, non-convertible with the official currency, is accepted. Could this micro-monetary system operate in an insular and independent manner, or was it necessary to establish some kind of relation with the official macro-monetary system? These are the questions that this article sets out to answer.Este artículo se interesa sobre un caso concreto del sistema monetario local, el de los “clubes de trueque”, desarrollados en Argentina a partir de 1995. Contrariamente a lo que su nombre deja pensar, los “clubes de trueque” designan los espacios comerciales comunitarios, al interior de los cuales las transacciones econ

  2. Measuring Variance in Subnational Regimes: Results from an Expert-Based Operationalization of Democracy in the Argentine Provinces Midiendo la variación de los regímenes subnacionales: Resultados de una operacionalización basada en expertos de la democracia en las provincias argentinas

    Directory of Open Access Journals (Sweden)

    Carlos Gervasoni

    2010-01-01

    Full Text Available This paper presents an expert-based operationalization strategy to measure the degree of democracy in the Argentine provinces. Starting with a mainstream and “thick” definition of regime type, I assess each of its aspects using a subjective or perception-based approach that taps the knowledge of experts on the politics of each province. I present and justify the methodological design of the resulting Survey of Experts on Provincial Politics (SEPP and conduct a preliminary analysis of its results. Some aspects of the provincial regimes appear to be clearly democratic, while others are mixed or even leaning towards authoritarianism. Moreover, some show little interprovincial variance, while others vary considerably from province to province. An analysis of the central tendency and dispersion of the survey items allows for a general description of the Argentine provincial regimes. Inclusion is the most democratic dimension, while the effectiveness of institutional constraints on the power of the Executive is the most deficient. Electoral contestation is generally free of traditional forms of fraud, but incumbents often command far more campaign resources and media attention than do their challengers. Physical repression is rare, but opponents in some provinces face subtler forms of punishment. While the survey does not uncover any clear cases of subnational authoritarianism, stricto sensu, provincial regimes do vary significantly from basically democratic to clearly hybrid. Este artículo presenta una estrategia de operacionalización basada en expertos para medir el grado de democracia en las provincias argentinas. Partiendo de una definición convencional y “densa” del tipo de régimen, se evalúan cada uno de sus aspectos usando un enfoque subjetivo o basado en percepciones, que explota el conocimiento de expertos en la política de cada provincia. Se presenta y justifica el diseño metodológico de la resultante Encuesta de Expertos en

  3. Detección de secuencias homologas al Gen Env del virus del tumor mamario murino (MMTV en Cáncer de mama de pacientes argentinas Detection of murine mammary tumor virus (MMTV env gene-like sequences in breast cancer from Argentine patients

    Directory of Open Access Journals (Sweden)

    Stella M. Melana

    2002-08-01

    Full Text Available En los últimos años se ha renovado el interés en la investigación sobre la posible etiología viral del cáncer de mama humano. En publicaciones previas se ha demostrado la presencia de secuencias homólogas al gen env del virus del Tumor Mamario Murino (MMTV en alrededor del 38% de cánceres de mama de mujeres procedentes de Estados Unidos e Italia; estas secuencias están generalmente ausentes en otros tumores y en tejido mamario normal. En el presente trabajo se analizó la presencia de una secuencia de 250 pb similar a la del gen env de MMTV en biopsias de pacientes argentinas con cáncer de mama. Se detectó este fragmento retroviral en el 31% (23/74 de los tumores analizados, mientras que sólo se obtuvo un caso positivo en tejido de mama normal y ninguno en fibroadenomas. En 46 pacientes con cáncer se analizaron células mononucleares de sangre periférica, detectando la secuencia en el 17% (2/12 de las pacientes portadoras de tumores env positivos y en el 3% (1/34 de aquéllas cuyos tumores eran env negativos. Los datos de Argentina son similares a los obtenidos en Estados Unidos e Italia donde la incidencia de cáncer de mama es también semejante. Estos resultados apoyarían la hipótesis de un probable agente viral implicado en la génesis de esta neoplasia y alientan los estudios en marcha.In the last years research on the possible viral etiology of human breast cancer has been revised. Previous studies have demonstrated the presence of a Mouse Mammary Tumor Virus (MMTV env gene-like sequence in about 38% of breast cancers from American and Italian women; these sequences are generally absent in other tumors and in normal mammary tissue. In the present study we have analyzed the presence of a 250-bp sequence of the MMTV env gene in breast cancer biopsies from Argentine patients. The retroviral fragment was present in 31% (23/74 of the tumors, only in one normal mammary tissue and in none of the fibroadenomas analized. Peripheral

  4. Tipología de las bibliotecas argentinas desde el período hispánico hasta 1830: Una primera clasificación provisional Typology of the Argentine Libraries since the Hispanic Period to 1830: A First Provisional Classification

    Directory of Open Access Journals (Sweden)

    Alejandro E. Parada

    2003-12-01

    Full Text Available El presente artículo intenta trazar una breve clasificación de los distintos «tipos» de bibliotecas existentes en el actual territorio argentino durante la dominación hispánica hasta el año 1830. La tipología adoptada es, ante todo, una aproximación provisional y ampliamente perfectible. La contribución se dirige, en líneas generales, a quienes se inician en el estudio de la «Historia del libro, de las bibliotecas y de la lectura» en la Argentina. En este sentido, la bibliografía citada intenta suplir la falta de guías de estudio sobre esta temática. Las bibliotecas identificadas son las siguientes: de instituciones o corporaciones religiosas, particulares, pública catedralicia, pública conventual, pública, de sociedades de extranjeros (societarias, de institutos de enseñanza, circulantes (y gabinetes de lectura, y por encargo u ofrecidas por negociantes.This article tries to outline a brief classification of the different types of existing libraries in the present Argentine territory since the Hispanic domination to 1830. The typology adopted is, above all, a provisional approach greatly rectifiable. The contribution is aimed, in general terms, to whom start the study of the history of the books, libraries, and reading in Argentina. In that sense, the quoted bibliography tries to substitute the lack of study guides on the subject. The identified libraries belong to: institutions or religious corporations; private individuals; foreigners societies (i.e.: belonging to a society; educational institutes; and cathedral public libraries; conventual public libraries; public libraries; circulating libraries (and reading rooms; and libraries made to order or offered by businessmen.

  5. La división sexual del trabajo de mando: carreras femeninas en las grandes firmas argentinas A divisão sexual do trabalho de direção: carreiras femininas nas grandes firmas argentinas The sexual division of administrative labor: feminine careers at large Argentine companies

    Directory of Open Access Journals (Sweden)

    Florencia Luci

    2010-06-01

    Full Text Available Este artículo analiza las particulares condiciones en que se desarrolla la carrera directiva femenina en grandes empresas argentinas. Se basa en un trabajo cualitativo realizado en ocho firmas globales que tienen sede en Buenos Aires, por el cual se entrevistaron a managers de distintas edades, sexo y nivel jerárquico. La intención es comprender las desiguales condiciones que experimentan las mujeres para acceder a los puestos directivos. Para ello se analizan las específicas características que estructuran la carrera managerial y que resultan en el "techo de vidrio" que las separa de la cima de la organización.Este artigo analisa as condições especiais em que se desenvolve a carreira diretiva feminina nas grandes empresas argentinas. Baseia-se em um trabalho qualitativo realizado em oito firmas globais com sede em Buenos Aires, no qual se entrevistaram gerentes de variadas idades, sexo e nível hierárquico. A intenção é compreender as condições desiguais que as mulheres experimentam para subir a postos diretivos. Para isso, analisam-se as características específicas da carreira gerencial e que resultam no "teto de vidro" que as separa do topo da organização.This article analyzes the particular conditions in which administrative careers for women develop at large Argentine companies. It is based on a qualitative study conducted at eight global companies based in Buenos Aires, at which were interviewed managers of various ages, genders and levels. The intention was to understand the unequal conditions that women experience in managerial positions, the specific characteristics of a managerial career and the "glass ceiling" that separates them from the top of the organization.

  6. Voces distantes, otras miradas examinan el círculo de hierro: política, emigración y exilio en la declinación Argentina Distant voices, different visions examine the iron circle: Politics, emigration and exile in the Argentine decline

    Directory of Open Access Journals (Sweden)

    Guillermo MIRA DELLI-ZOTTI

    2010-10-01

    Full Text Available Desde la década de 1950 los argentinos abandonan su país por razones económicas, políticas, familiares o culturales. Este artículo relaciona este fenómeno tan negativo para el desarrollo social con las prácticas y la cultura política dominantes en la Argentina de los últimos 50 años. E identifica la pérdida continua de capital humano como síntoma y componente de la miríada de causas que pueden explicar la declinación argentina y su profunda crisis actual.Since the 1950s, Argentines left their country for economic reasons, political, familiar and cultural. The article relates this very negative phenomenon in terms of social development, to the practices and dominant political culture in Argentina in the last 50 years. It also identifies the continuous loss of human capital as both a symptom and consequence of the myriad of causes which can explained the decline of Argentina and its current crisis.

  7. Libros de lectura en la escuela primaria argentina: civilizando al niño urbano y urbanizando al niño campesino (1900-1946 Textbooks used in the primary argentine school: civilizing urban children and urbanizing rural children (1900-1946

    Directory of Open Access Journals (Sweden)

    Adrián Ascolani

    2010-04-01

    Full Text Available Los libros de lectura usados en la educación primaria argentina fueron un instrumento muy importante para la transmisión de las ideas de modernización y "civilización" de la sociedad. Fueron un apoyo fundamental en la difusión de los valores morales, estéticos y patrióticos, aunque no fueron militaristas y tendieron a moderar la inclusión de preceptos higienistas, a medida que la población los fue asimilando. La consolidación de las pedagogías espiritualistas, con elementos de la Escuela Nueva, se advierte también en los contenidos de estos libros, que pusieron el énfasis en el autocontrol del escolar, apelando a la persuasión y a los sentimientos de emulación y de culpa. Escritos para niños urbanos, no fueron funcionales para el medio rural, aunque contribuyeron a una temprana urbanización de la mentalidad agraria.Textbooks used in the primary Argentine education were a very important instrument for the transmission of the ideas of modernization and "civilization" of the society. They were a fundamental support in the diffusion of the moral, aesthetic and patriotic values, though they were not militaristic and tended to moderate the incorporation of hygienists rules, as the population was assimilating them. The consolidation of the spiritualist pedagogy, with elements of the New School, are found also in the contents of these books, which put the emphasis in the self-control of the student, appealing to the persuasion and the feelings of emulation and fault. Written for urban children, they were not functional for the rural area, though they contributed to an early urbanization of the agrarian mentality.

  8. A Argentina entre as reformas econômicas neoliberais e a redefinição das negociações com o FMI (1989-2007 L'Argentine entre les réformes économiques néoliberales et la redéfinition des négociations avec le FMI (1989-2007 Argentina: between neoliberal economic reform and redefinitions of negotiations with the IMF (1989-2007

    Directory of Open Access Journals (Sweden)

    Roberta Rodrigues Marques da Silva

    2009-06-01

    ública.Cet article a pour objectif d'analyser l'influence de la crise économique sur la formation de nouvelles coalitions politique dans l'Argentine des années 2000, qui ont mené à la rupture de la politique économique adoptée par les gouvernements Menem et De la Rúa. Ces transformations ont favorisé un changement dans la stratégie du gouvernement Néstor Kirchner concernant les relations avec le Fonds Monétaire International (FMI, ce qui a engendré une position plus dure de la part du gouvernement argentin et un rejet des positions du FMI. La politique économique soutenue par les gouvernements Duhalde et Kirchner s'est appuyée sur le régime de change compétitif, à la place du régime de conversion en vigueur dans les années 1990, et comptait sur l'appui des groupes d'entrepreneurs orientés vers le marché domestique, mieux lotis en fonction de la dévalorisation du « peso ». La proposition de ces gouvernements pour la relance économique a supprimé des acteurs ayant des liens étrangers, qui participaient à des coalitions d'appui sous Menem et De la Rúa. Parmi les exclus, figuraient les créanciers ayant des papiers de la dette en moratoire depuis 2001 et les entreprises offrant des services publics qui avaient été privatisées dans les années 1990 et qui ont reçu appui du FMI. Ces raisons expliquent le fait que les négociations avec le Fonds pendant le gouvernement Kirchner ont été marquées par des impasses et par l'attitude énergique de la part des négociateurs argentins. Des transformations dans le contexte international ont également eu des impacts sur les négociations du gouvernement Kirchner avec le FMI. Avec l'élections de George W.Bush aux États-Unis, en 2000, l'appui nord-américain à la concession d'emprunts du Fonds à des pays en développement s'est affaibli. Le gouvernement républicain a encore prôné la réduction du rôle du FMI dans l'intermédiation des négocitions entre les pays endettés et les créanciers privés. Ainsi

  9. Influencia de compuestos azúcares y no azúcares en la calidad industrial de caña de azúcar en Tucumán (R. Argentina: Parte 1: caña limpia y despuntada Influence of sugar and nonsugar compounds on sugarcane industrial quality in Tucumán (Argentine Republic

    Directory of Open Access Journals (Sweden)

    B. Silvia Zossi

    Full Text Available Se estudió la concentración de compuestos azúcares y no azúcares, especialmente los que influyen en la formación del color y otros que inciden en el proceso industrial de producción de azúcar blanco directo, de las cuatro variedades comerciales de caña más difundidas en Tucumán (R. Argentina: TUCCP 77-42, LCP 85-384, CP 65-357 y RA 87-3. Estos ensayos fueron realizados durante las zafras 2004 a 2007 en caña limpia y despuntada. Los parámetros analizados fueron: extracción de jugo, Brix %, pol % en jugo y en caña, sacarosa y azúcar recuperable. Se estudiaron no azúcares inorgánicos, tales como cenizas, fosfato y sílice, y no azúcares orgánicos: fibra, almidón, compuestos antocianos y fenoles, nitrógeno amínico, ácidos cis y trans-aconítico, "indicator value" y color. De las cuatro variedades analizadas, la que mejor comportamiento presentó para producir azúcar blanco directo fue LCP 85-384, por su alto contenido en sacarosa y bajo contenido de componentes no azúcares. El segundo lugar le correspondió a la variedad RA 87-3, seguida por CP 65-357 y TUCCP 77-42.The concentration of sugar and nonsugar compounds, especially those which play a part in colour formation and others which affect direct white sugar manufacturing process, was studied in the four commercial cane varieties most widely grown in Tucumán (Argentine Republic: TUCCP 77-42, LCP 85-384, CP 65-357 and RA 87-3. Trials with clean cane were conducted during the 2004-2007 harvests. Analyzed parameters were: juice extraction, Brix %, pol % in juice and cane, sucrose and sugar recovery. Inorganic nonsugar compounds, such as ash, phosphate and silica, as well as organic ones, such as fibre, starch, anthocyanin and phenolic compounds, amino nitrogen, cis and trans-aconitic acids, indicator value and colour, were studied. Results showed that LCP 85-384 variety had the best factory performance to produce direct white sugar because of its high sucrose and low

  10. Nuclear regulations and environment

    International Nuclear Information System (INIS)

    After an historical overview of the nuclear regulation system in Argentina a description is made of the country's Nuclear Regulatory Authority (ARN) and of its regulation and control functions. Its organic structure is also outlined. A detailed report is given of the environmental monitoring activities in the sites of the operating Argentine nuclear power plants as well as those of the nuclear research centres. A special reference is made of the monitoring of the relevant uranium mining districts in Argentina. The radon determination in houses of several regions of the country is also mentioned

  11. “La patria es una e indivisible” “A pátria é uma e indivisível”: Os modos de narrar a história territorial da Argentina "La patrie est une et indivisible". Les stratégies de récit de l'histoire territoriale de l'Argentine “The nation is one and indivisible”: Ways of telling the Argentinean territorial history

    Directory of Open Access Journals (Sweden)

    Carla Lois

    2012-11-01

    ória territorial da Argentina e colocar em questão os preconceitos sobre o imaginário construído em torno à “perda de territórios”.Une loi récente (2010 exige l'utilisation obligatoire dans tous les niveaux d'enseignement de la carte dite « bicontinental » (où le secteur antarctique revendiqué par l’état argentin est représenté à la même échelle que le territoire continental. En conséquence, la nouvelle silhouette de la carte politique de l'Argentine dédiera désormais la moitié de son espace graphique au « continent blanc ». Cette façon d'intervenir la carte politique à travers des dispositifs juridiques n'est pas complètement nouvelle: depuis la seconde moitié du XIXe siècle, diverses politiques éducatives, diplomatiques et culturels ont cherché de réguler les modes de visualiser, penser et concevoir le territoire national. À partir d'une révision de l'histoire de la carte politique de l'Argentine, cet article propose de repenser les récits enseignés concernant l'histoire territoriale argentine et de remettre en question les idées reçues sur l'imagerie construite autour de la «perte de territoires».A recently enacted law (2010 determines the obligatory use of so-called “bi-continental map” (the continental part and the Antarctic sector disclaimed by the Argentinean state are displayed at the same scale for all the educative levels. As a result of this norm, the political map of Argentina will present a new silhouette, which, after repeated reproduction, will impose this renewed standardized aspect. This way to modify the political map through legal devices is not completely new: from the second half of the nineteenth century, several educative, diplomatic and cultural policies were implemented in order to affect the ways of visualizing, thinking and conceiving the national territory. By examining the history of the political map of Argentina, this article proposes to rethink the ways in

  12. Movimientos prehistóricos y recientes en la intraplaca argentina a la latitud 33º s, Falla Las Lagunas, Sampacho, Córdoba Prehistoric and recent movements in the Argentine intraplate, at the latitude 33º S, Las Lagunas fault, Sampacho, Córdoba

    Directory of Open Access Journals (Sweden)

    Guillermo Luis Sagripanti

    2011-12-01

    Full Text Available En la intraplaca argentina a la latitud 33º S, región sur de la provincia de Córdoba se ubica la falla Las Lagunas. Esta estructura con probada actividad cuaternaria posee antecedentes de fuertes paleoterremotos, de terremotos históricos y sismicidad asociada frecuente. La aplicación de métodos paleosismológicos y geodésicos han permitido cuantificar los movimientos prehistóricos y recientes de la falla. Los estudios paleosismológicos realizados mediante la excavación de trincheras perpendiculares a la falla, han permitido relevar deformaciones cosísmicas correspondientes a cuatro paleoterremotos ocurridos en el Holoceno superior. La información relevada permitió estimar el desplazamiento vertical de la falla de 0,20 mm/año y el horizontal de 0,16 mm/año. En la sección Chañaritos de esta falla se emplazó una red geodésica con el fin de detectar y medir movimientos horizontales y verticales lentos e imperceptibles. La red está formada por seis estaciones distribuidas en el bloque hundido y elevado de la falla. Las mediciones de precisión fueron realizadas con una estación total electrónica. Se realizaron cuatro mediciones entre los años 2003 y 2010, cuyos datos han permitido interpretar una modificación en el sentido del movimiento de rumbo y un desplazamiento cosísmico de 37 mm, que se adjudica a un evento natural único como el terremoto de M 8,8 de Concepción, Chile de 2010.Las Lagunas fault is located in the argentine intraplate at latitude 33ºS, in the southern region of the Cordoba province. This structure with proved Quaternary activity has records of strong paleoearthquakes, historical earthquakes, and associated frequent seismicity. Paleoseismic and geodesic methods have permitted to quantify the prehistoric and recent movements of the fault. Paleoseismic studies done in trenches across the fault, have permitted the recognition of coseismic deformation corresponding to four paleoearthquakes occurred in the

  13. La diversité des capitalismes latino-américains : les cas de l’Argentine, du Brésil et du Mexique The diversity of Latin-American capitalisms: the case of Argentina, Brazil and Mexico La diversidad de los capitalismos latinoamericanos: el caso de Argentina, Brasil y México

    Directory of Open Access Journals (Sweden)

    Bruno Théret

    2012-04-01

    Full Text Available Cet article prolonge des travaux antérieurs sur l’effet de la diversité des configurations institutionnelles sur les trajectoires récentes de développement économique en Argentine, au Brésil et au Mexique. La première partie est consacrée à la caractérisation et aux transformations des coalitions socio-politiques dominantes dans les trois pays. Les deux parties suivantes examinent l’empreinte de ces coalitions socio-politiques dans les trois domaines relativement autonomes que sont les relations de travail, les systèmes monétaire et financier, et la structure organisationnelle de l’État. La conclusion s’attache à montrer que les différences observées dans les degrés d’autonomie de l’État et les forces organisatrices des syndicats et des entrepreneurs définissent différent modèles économiques et formes d’insertion dans l’économie internationale, qui permettent de parler d’une diversité des capitalismes propres à l’Amérique latine.This article analyses the way in which different socio-political configurations have had a significant effect on the economic development of Argentina, Brasil and Mexico. The characteristics of the socio-political coalitions in the three countries are presented, and their imprints on industrial relationships, monetary and financial systems, and the organizational structures of the State are studied. In conclusion, it is suggested that the observed differences in the three countries in the degrees of autonomy of the State, and the organizational forces of the unions and of the entrepreneurs define different economic patterns and forms of insertion in the international economy that allow to speak of a diversity of capitalisms genuine to Latin America.Este articulo prolonga trabajos anteriores sobre el efecto de la diversidad de configuraciones institucionales sobre las trayectorias recientes del desarrollo económico en Argentina, Brasil y México. La primera parte esta

  14. THE EMOTIONAL EXPRESSIVITY SCALE VALIDATION IN ARGENTINE UNIVERSITY STUDENTS

    Directory of Open Access Journals (Sweden)

    Sebastián Eduardo Piemontesi

    2012-06-01

    Full Text Available Emotional Expressivity, defined as the ability to express emotional states in ob-servable behaviors, is essential for individuals healthy functioning, and was po -sitively associated with wellbeing, self-esteem, life satisfaction and negatively related with diseases such as schizophrenia, depression, personality disorders and post traumatic stress disorder. To answer the need for an instrument which can evaluate this construct in a valid and reliable manner, this study explored the psychometric properties of the Emotional Expressivity Scale adapted into Spa-nish. For this reason, an exploratory factor analysis replicating the one-dimension solution was performed, a coefficient alpha of .94 was obtained, gender differen -ces with higher scores in women, and test-retest coefficients for a 4-week interval with values of .88 in women and .86 in men. Additionally, confirmatory factor analyzes were performed separately for each gender obtaining appropriate va-lues for all fit indices, but not in men. Finally the results, scope and limitations of this paper are discussed.

  15. Current trends in Latin America and the Argentine perspective

    Energy Technology Data Exchange (ETDEWEB)

    Laredo, V.G. [SOCMA Americana, Buenos Aires (Argentina)

    1992-12-31

    The authors discusses the changes that are taking place in Argentina as well as in all of Latin America today -- privatization, deregulation, and the modernization of the economy, changes which will serve to strengthen the governments and provide a better quality of life for all of them. He gives an insight into the factors which helped bring about these changes, the support they are receiving, the problems which persist, and the measures that still must be taken so that these positive changes remain in place. He offers some useful information that will perhaps contribute to their understanding of the vast area which he refers to as Latin America, and more specifically, gives a thumbnail sketch of what is happening today in the Republic of Argentina. For many years now, Latin American leaders have travelled to other parts of the world and spoken about the plans and expectations for the region`s future. When these well-intentioned projects and plans never materialized, partners and supporters in the United States and other countries were frustrated and disappointed by the failure to make things work. The author`s intention here today is to describe things as they are, not as they might be, to tell about what is already happening in the sphere of business and growth of the economies in Latin America.

  16. History of Argentine surgery, abaut general surgery residents

    Directory of Open Access Journals (Sweden)

    A. Jankilevich

    2015-04-01

    Full Text Available This work, as its title indicates, is targeted to young general surgery residents, who have been kind enough to open their journal for this collaboration. A gesture that I appreciate and I’ll try to give back narrating some facts of the first century of our independence. The story starts a few decades before 1810, especially with the institution of the Viceroyalty of Rio de la Plata, and ends at 1880, when indigenous peoples are submited, traditional estate, the gaucho gerrillas and the last caudillos (the pattern and the National Guards pawns are extinguished, agriculture and industry develops, the railroad replaces the wagons, is mass immigration and techniques of exploitation of natural resources strengthens social and economic structure, policy that starts the National Organization bequeathed to us Eighty generation. Two figures are presented as conclusion and synthesis of this period and serve as a bridge that starts from 1880: Francisco Javier Muñiz and Manuel Augusto Montes de Oca. The first such example of a surgeon in the wars of independence, internal frontier garrisons, the vicissitudes of the early university studies and creative work in the solitude of the peoples of campaign not only providing a commendable assistance but researching and discovering the first indigenous smallpox vaccine, rectifying errors jennerianos concept of cows pox disease of horses were infected, combating epidemics and initiating scientific research, natural sciences and producing valued communications throughout the world, as in the case of Darwin himself, who makes the research Muñiz as one of the foundations of his theory of evolution of species. The second: Montes de Oca, is the archetype and the teacher of those surgeons of the eighties generation. He gather in his person a more advanced knowledge and understanding of their subject, son of exile and disagreements before the national organization, contact to Europe, but attached to the reality of their land, teaches its students to follow their own observations and experiences at the patient bedside. Introducing the antiseptic method of Lister says while alone does not solve all the problems of hospital infection, noting however, along with anesthesia and hemostasis is the most revolutionary advance so far, and adds the microscope and use of intravenous catheters

  17. Seismicity and average velocities beneath the Argentine Puna Plateau

    Science.gov (United States)

    Schurr, B.; Asch, G.; Rietbrock, A.; Kind, R.; Pardo, M.; Heit, B.; Monfret, T.

    A network of 60 seismographs was deployed across the Andes at ∼23.5°S. The array was centered in the backarc, atop the Puna high plateau in NW Argentina. P and S arrival times of 426 intermediate depth earthquakes were inverted for 1-D velocity structure and hypocentral coordinates. Average velocities and υp/υs in the crust are low. Average mantle velocities are high but difficult to interpret because of the presence of a fast velocity slab at depth. Although the hypocenters sharply define a 35° dipping Benioff zone, seismicity in the slab is not continuous. The spatial clustering of earthquakes is thought to reflect inherited heterogeneties of the subducted oceanic lithosphere. Additionally, 57 crustal earthquakes were located. Seismicity concentrates in the fold and thrust belt of the foreland and Eastern Cordillera, and along and south of the El Toro-Olacapato-Calama Lineament (TOCL). Focal mechanisms of two earthquakes at this structure exhibit left lateral strike-slip mechanisms similar to the suggested kinematics of the TOCL. We believe that the Puna north of the TOCL behaves like a rigid block with little internal deformation, whereas the area south of the TOCL is weaker and currently deforming.

  18. Neutron spectrometric evaluations in the Argentine research reactor RA-1

    International Nuclear Information System (INIS)

    Full text: The determination of the quantities dose equivalent H*(10) and personal dose equivalent Hp(10) in mixed field (n,γ) needs the knowledge of the related spectrum. In order to fulfill this aim spectrometer system has been built based on the combination of polyethylene spheres of different diameters (Bonner Spheres System-BSS) and a He3 proportional counter detector sensitive to thermal neutrons. The detector is located in the geometrical centre of each of the spheres and has an associated electronics with a charge preamplifier, an amplifier and a multichannel system that allows the outgoing spectrum analysis. In order to determine the neutron spectrum a deconvolution method is applied based on the LOUHI82 code. In this work are shown the spectra and the related values of H*(10) that have been got in five places of the reactor and in the command room with the BSS. (author)

  19. Governance and sustainability of the Argentine Complementary Currency Systems

    NARCIS (Netherlands)

    G.M. Gomez (Georgina)

    2012-01-01

    textabstractThe Redes de Trueque (RT) thrived during the economic crisis of 2001 – 2002 in Argentina and still stand out as one of the largest Complementary Currency System in the world. These local exchange networks reach a large scale during times of severe economic distress, but as large non-stat

  20. Public health approach to birth defects: the Argentine experience.

    Science.gov (United States)

    Bidondo, María Paz; Groisman, Boris; Barbero, Pablo; Liascovich, Rosa

    2015-04-01

    Birth defects are a global problem, but their impact is particularly severe in low and middle income countries, where the conditions for prevention, treatment, and rehabilitation are more critical. The epidemiological transition in the infant mortality causes, and the concern of the community and the mass media about the teratogenic risk of environmental pollutants, has made health authorities aware of the importance of birth defects in Argentina. The objective of this paper is to outline those actions specifically taken in Argentina aimed at the prevention of birth defects at a national level. Firstly, we focus on birth defects in Argentina on a general basis, and then we present different laws and actions taken in terms of surveillance and public health programs, primary, secondary, and tertiary prevention. Finally, we present the Teratology Information Service "Fetal Health Line", and the genetic services organization and health professionals training by the National Center of Medical Genetics and the National Program of Genetics Network. In conclusion, in the country, several programs focus on different approaches to the problem, and the challenge is to coordinate the teamwork between them. Finally, we list tips to address birth defects from the public health perspective. PMID:25564015

  1. Quaternary Glaciations in the Rio Mendoza Valley, Argentine Andes

    Science.gov (United States)

    Espizua, Lydia E.

    1993-09-01

    In the Rio Mendoza valley, five Pleistocene drifts and one Holocene drift are distinguished by multiple relative-age criteria, including surface-rock weathering, development of rock varnish, moraine morphology, soil-profile development, and stratigraphic relationships. Several absolute ages suggest a preliminary chronology. During the oldest (Uspallata) glaciation, a system of valley glaciers flowed 110 km from the Andean drainage divide and 80 km from Cerro Aconcagua to terminate at 1850 m. Drift of this ice advance is older than a widespread tephra dated by fission-track at 360,000 ± 36,000 yr. During the Punta de Vacas advance, ice terminated at 2350 m, while during the subsequent Penitentes advance, the glacier system ended at 2500 m. A travertine layer overlying Penitentes Drift has U-series age of 24,200 ± 2000 yr B.P. The distribution of Horcones Drift, which is inferred to represent the last glacial maximum, delimits an independent ice stream that flowed 22 km down Horcones valley to 2750 m. A later readvance (Almacenes) reached 3250 m. Confluencia Drift is considered to be Neoglacial in age and extends downvalley to 3300 m. The moraine sequence is compared with those studied by Caviedes (1972) along Rio Aconcagua on the Chilean flank of the Andes.

  2. Geological and geophysical investigations at Sierra del Medio massif - Argentine

    International Nuclear Information System (INIS)

    Geological investigations were performed at Sierra del Medio (Chubut Province), a mountainous massif of about 25 km by 8 km of migmatic origin, which emerges from a depressed tectonic trench or graben called Pampa de Gastre. The most ancient rocks belong to biotitic and anphibolic schist that passed almost entirely to tonalitoid migmatites with a second process producing granitic rocks. Boreholes were drilled on the basis of conclusions from Landsat satellites imagery and aerial photographic sets, folowed by field work on geological, petrographic, geophysical and hydrogeological features at surface, structural interpretation supported by geostatistical computations. Two sets of boreholes were drilled to investigate subsurface rock behaviour al 300 m depth and 800 m depth respectively, beginning at peripheral places and ending at the central part or selected site. Basic purposes of boreholes were to define structural and petrographic features of the rock massif by a good comprehension of master joints and faulting distribution with its belts of alteration mylonitization or brecciation, mechanical properties of samples, chemical composition and varitions, petrographic facies and mineralogy. Boreholes provided data to investigate joints, faults and dikes as general discontinuities for hydraulic research like permeability or effective hydraulic conductivity, and their geostatistical modelling. Boreholes are also being prepared for geophysical logging from which logthermal ones have already been completed. (Author)

  3. Crisis Saps Argentine Men’s Sex Drive

    Institute of Scientific and Technical Information of China (English)

    林羽

    2002-01-01

    【选注者言:阿根廷现在面临的危机的多方面的:political,economic and socialcrisis。阿根廷男性的性欲也随之减退。这是为什么:文章分析:men’sdifficulties in fulfilling their role as wage earnere and providers for their familieshave left them with low self-esteem。(男人不能完成他们养家活口的职责,就令他

  4. Extracting DNA of nematodes communities from Argentine Pampas agricultural soils

    Directory of Open Access Journals (Sweden)

    Eduardo A. Mondino

    2015-06-01

    Full Text Available We examined four strategies (Tris/EDTA, sodium dodecyl sulfate, Chelex 100 resin and cetyltrimethylammonium bromide -CTAB- for extracting nucleic acid (DNA from communities of nematodes. Nematodes were isolated from an agricultural area under different management of long-term crop rotation experiment from Argentina during three seasons. After DNA extraction, Polymerase Chain Reaction-amplifications were performed and considered as indicators of successful DNA extraction. The CTAB combined with proteinase K and phenol-chloroform-isoamyl alcohol was the unique successful method because positive amplifications were obtained by using both eukaryotic and nematode specific primers. This work could contribute to biodiversity studies of nematodes on agroecosystems.

  5. Extracting DNA of nematodes communities from Argentine Pampas agricultural soils.

    Science.gov (United States)

    Mondino, Eduardo A; Covacevich, Fernanda; Studdert, Guillermo A; Pimentel, João P; Berbara, Ricardo L L

    2015-01-01

    We examined four strategies (Tris/EDTA, sodium dodecyl sulfate, Chelex 100 resin and cetyltrimethylammonium bromide -CTAB-) for extracting nucleic acid (DNA) from communities of nematodes. Nematodes were isolated from an agricultural area under different management of long-term crop rotation experiment from Argentina during three seasons. After DNA extraction, Polymerase Chain Reaction-amplifications were performed and considered as indicators of successful DNA extraction. The CTAB combined with proteinase K and phenol-chloroform-isoamyl alcohol was the unique successful method because positive amplifications were obtained by using both eukaryotic and nematode specific primers. This work could contribute to biodiversity studies of nematodes on agroecosystems.

  6. Argentine folk medicine: genotoxic effects of Chenopodiaceae family.

    Science.gov (United States)

    Gadano, A B; Gurni, A A; Carballo, M A

    2006-01-16

    Chenopodium ambrosioides L. and Chenopodium multifidum L. (Chenopodiaceae), common name: Paico, are medicinal plants. They are aromatic shrubs growing in South America. For centuries, they have been used due to its medicinal properties. However, there are few reports in literature about the genotoxic effects of these plants. There for, the aim of these work is the evaluation of genetic damage induced by decoction and infusion of this plants which were assayed in different concentrations (1, 10, 100, 1,000 microL extract/mL culture), by addition of the extract to human lymphocyte cell cultures, negative controls were included. The endpoints evaluated were chromosomal aberrations (CA), sister chromatid exchanges (SCE), cell proliferation kinetics (CPK) and mitotic index (MI). The repeated measure analysis of variance was used for statistic evaluation of the results. The results showed: (a) statistical increase in the percentage of cells with CA and in the frequency of SCE when cultures were exposed to both aromatic plants, (b) a decrease in MI of both Paicos assayed, although no modification in the CPK values was observed, (c) no effect was noticed in the analysis of Chenopodium album L., which was used as negative control of the essential oil. These results suggest a cyto and genotoxic effect of Chenopodium ambrosioides and Chenopodium multifidum aqueous extracts related to the essential oil of the plant (as Chenopodium album did not perform). PMID:16219440

  7. Argentine folk medicine: genotoxic effects of Chenopodiaceae family.

    Science.gov (United States)

    Gadano, A B; Gurni, A A; Carballo, M A

    2006-01-16

    Chenopodium ambrosioides L. and Chenopodium multifidum L. (Chenopodiaceae), common name: Paico, are medicinal plants. They are aromatic shrubs growing in South America. For centuries, they have been used due to its medicinal properties. However, there are few reports in literature about the genotoxic effects of these plants. There for, the aim of these work is the evaluation of genetic damage induced by decoction and infusion of this plants which were assayed in different concentrations (1, 10, 100, 1,000 microL extract/mL culture), by addition of the extract to human lymphocyte cell cultures, negative controls were included. The endpoints evaluated were chromosomal aberrations (CA), sister chromatid exchanges (SCE), cell proliferation kinetics (CPK) and mitotic index (MI). The repeated measure analysis of variance was used for statistic evaluation of the results. The results showed: (a) statistical increase in the percentage of cells with CA and in the frequency of SCE when cultures were exposed to both aromatic plants, (b) a decrease in MI of both Paicos assayed, although no modification in the CPK values was observed, (c) no effect was noticed in the analysis of Chenopodium album L., which was used as negative control of the essential oil. These results suggest a cyto and genotoxic effect of Chenopodium ambrosioides and Chenopodium multifidum aqueous extracts related to the essential oil of the plant (as Chenopodium album did not perform).

  8. Public involvement in the decision making process, Argentine experience

    International Nuclear Information System (INIS)

    In the frame of a young participative democracy the Comision Nacional de Energia Atomica (C.N.E.A.), technical and legal responsible for radioactive waste management, is developing a plan for the close out of tailings facilities from past mining and milling operations and the environmental restoration of nine different sites in six provinces all over the country. In the first site, Malargue Facility, different activities have been developed promoting public involvement in the decision making process. The lessons learned and the experience acquired have given the background for the systematization of public consultation in the ongoing and future stages of the plan. Malargue's experience in this field will be analyzed stressing on different aspects considered of importance for the design of a communicational strategy adapted to the characteristics of a society without experience in this field. The influence of public concern on conservative bias of technical decisions will be evaluated. (author)

  9. How to tell the History. Proximity strategies on Argentine television

    Directory of Open Access Journals (Sweden)

    Elena Galán Fajardo

    2014-11-01

    Full Text Available This paper focuses on the analysis of a television documentary Algo habrán hecho (por la historia argentina, broadcast on Telefe and Canal 13, between 2005 and 2008. The interrelationship of discursive tools and informative and evocation strategies are very relevant in this text. Its effectiveness is related to a combined use of resources that appeal to different meanings of proximity, with the objective to make accessible the history to a popular audience.

  10. German-Argentine experiment: Vertical-rotor wind engine

    Science.gov (United States)

    Raabe, P.

    1981-09-01

    Designed by aerodynamists, a wind motor built in Patagonia, is independent of the direction of the wind due to its vertical rotating axis. The narrow rotor blades have optimum aerodynamic efficiency. Drum-like wind collectors at the top and bottom of the rotating axis serve as starters. The plant incorporates simple instead of sophisticated mechanical parts, and its maintenance requirements are extremely low. Only the two rotating bearings located at the top and bottom of the axis require lubrication, with the oil being changed only twice a year.

  11. [Why are there few publications by the Argentine gastroenterology? Considerations on a bibliometric analysis of Argentine publications on gastroenterology].

    Science.gov (United States)

    Barreyro, Fernando J; Krabshuis, Justus; Planzer del Campo, Marcela; Bai, Julio C

    2009-03-01

    The publication of scientific findings is the main way to communicate advances. Our aim was to perform a bibliometric and comparative analysis of the Argentinean gastroenterological research output. We analyzed Argentinean gastroenterological publications selectively retrieved from LILACS (between years 1982-2006) and EMBASE (1996-2007) databases by means of specially constructed filter based on author address and subject headings. The global Argentinean scientific research output is far below that of developed countries and has been affected in direct manner by economic, political and social disturbances in the country. The gastroenterological research output from Argentina represent about 6% of national biomedical research. While 54% belongs to gastroenterology and 46% to hepatology, 65% are based on clinical research and 67% were originally contributions. Only 11% have been published in high impact factor journals. The comparative analysis within countries with health indicators similarities has shown a low biomedical and gastroenterology research output, however, the rate of acceptance at the 18 top gastroenterological journals is acceptable (15%). The contributions of registered specialists were lower for gastroenterologists compared with those from hepatologists (8.7% and 16.4% respectively). The research projects at public hospital funded by the pharmaceutical industry overcome those funded independently. Indeed, it seems that the independent research is being progressively replaced by that supported by the industry due to economic benefits for researchers even when there is a very low participation rate in publications (3%) by Argentinean researchers. We conclude that the Argentinean biomedical and gastroenterological research output is scanty compared with developed countries and countries with comparable health indicators. Our analysis suggests that efforts must be taken to attain objectives directed to develop and improve the Argentinean biomedical and gastroenterological scientific work and publication.

  12. Gap size effects on tree regeneration in afforestations of Black pine (Pinus nigra Arn.

    Directory of Open Access Journals (Sweden)

    Mercurio R

    2009-09-01

    Full Text Available The authors deal with the problem of the re-naturalization of afforestations of Black pine in the Apennines (Central Italy. Gap-cutting of two different sizes (the gap diameter/stand height ratios were respectively 0.75 and 1.0 on age classes stands (respectively 50 and 90 years old have been carried out. The results of the dynamics of the tree regeneration established in the gaps 7 years after the beginning of the experiment are given. The Black pine represents the best regenerated tree species and its presence is increasing. Some broadleaves, Pubescent oak (Quercus pubescens Willd. and Holm oak (Quercus ilex L. particularly, and Hop-hornbeam (Ostrya carpinifolia Scop. and Manna-ash (Fraxinus ornus L. on a subordinate way, are also present in the gaps. These results confirm that the gap-cutting system represents an effective instrument for the natural regeneration priming and a low impact environmental treatment which is particularly fit for the re-naturalization of the conifers’ monocultures. According to this experience the gaps’ optimal sizes are 150-250 m2. These gaps should be distributed appropriately in space and time.

  13. Fenóis totais, flavonoides totais e atividade antioxidante de Selaginella convoluta (Arn. Spring (Selaginellaceae

    Directory of Open Access Journals (Sweden)

    Pedro Guilherme Sousa de Sá

    2012-12-01

    Full Text Available Selaginella convoluta é uma espécie conhecida no Nordeste do Brasil como “jericó”, e bastante utilizada na medicina popular para tratamento de doenças. Este estudo teve como objetivo determinar o teor de compostos fenólicos e avaliar a atividade antioxidante in vitro do extrato etanólico e das frações obtidas por partição de S. convoluta. O conteúdo de fenóis totais foi determinado pelo método de Folin-Ciocalteu. O teor de flavonoides totais também foi avaliado. A atividade antioxidante dos extratos foi avaliada usando o método do sequestro do radical DPPH e inibição da auto-oxidação do sistema β-caroteno-ácido linoleico e comparada com os compostos de referência ácido ascórbico, BHA, BHT, quercetina e pirogalol. O conteúdo fenólico total foi de 209,90 ± 19,84 e 61,13 ± 2,50 mg equivalente de ácido gálico/g para os extratos AcOEt e EEB, respectivamente. O conteúdo de flavonoides totais foi de 155,70 ± 6,21 e 62,13 ± 4,10 para os dois extratos, respectivamente. Os extratos AcOEt e EEB apresentaram boas atividades antioxidantes. BHA foi o antioxidante mais efetivo, com um valor de IC50 de 1,62 ± 0,69 µg/mL. Os resultados obtidos mostram que S. convoluta pode ser uma boa fonte de compostos fenólicos antioxidantes. Estudos posteriores serão realizados para se chegar ao isolamento e identificação dos principais constituintes fenólicos dos extratos.

  14. ANTI-INFLAMMATORY ACTIVITY OF WHOLE PLANT OF POLYGALA ROSMARINIFOLIA WIGHT & ARN (POLYGALACEAE

    Directory of Open Access Journals (Sweden)

    V.R. Mohan et al

    2012-10-01

    Full Text Available In the present study, Polygala rosmarinifolia whole plant was extracted with ethanol and evaluated for anti-inflammatory activity in rats using a carrageenan induced paw edema method. Ethanol extract exhibits potent anti-inflammatory activity at 200mg/kg at 3rd hr after administration is compared with reference standard drug, Indomethacin. Observed pharmacological activity in the present study provides scientific validation of ethnomedicinal use of this plant in treating acute inflammation.

  15. Aerosol, cloud and biosphere interactions (Arne Richter Award for Outstanding Young Scientists Lecture)

    Science.gov (United States)

    Su, Hang

    2013-04-01

    The response of cloud characteristics and precipitation processes to increasing anthropogenic aerosol concentrations is one of the largest uncertainties in the current understanding of climate change. We have investigated the formation of cloud droplets using models with detailed spectral microphysics. Depending on the ratio between updraft velocity and particle number concentration, we found distinctly regimes of CCN activation, cloud, rain and snow formation, which implies strongly dynamic dependence for the aerosol impact. In a further study, we also found that the cloud droplet formation is more sensitive to the aerosol number concentration and its size than to its chemical composition. Nitrous acid (HONO), as an important precursor of OH radical, is a key species in atmospheric photochemistry. Field observations suggest a large missing source of HONO. We show that biogenic nitrite in soil can release HONO and explain the reported strength and diurnal variation of the missing source. On the other hand, HONO emission provides another pathway for the emission of reactive nitrogen from soil, which is currently missing in the nitrogen cycle. Fertilized soils appear to be particularly strong sources of HONO and OH. Thus, agricultural activities and land-use changes may strongly influence the oxidizing capacity of the atmosphere. Because of the widespread occurrence of nitrite-producing microbes, the release of HONO from soil may also be important in natural environments, including forests, boreal and polar regions. The above stories summarize most of my previous studies, but are a snapshot of Aerosol, cloud and biosphere interactions.

  16. ANTI-INFLAMMATORY AND DIURETIC EFFECT OF PLANT EXTRACTS OF PSEUDARTHRIA VISCIDA (L) WEIGHT & ARN.

    OpenAIRE

    Saravanan C.; Shantha kumar S.; Anandan R.; Narayanaswamy V.B.; Varunraj S.

    2010-01-01

    The ethanolic extracts prepared from aerial parts of Pseudarthria viscida was studied for anti-inflammatory and diuretic activities in albino rats. The results obtained were compared with that of standard drug indomethacin and frusemide for their anti-inflammatory and diuretic activities respectively. The present study demonstrated the diuretic effect of P.viscida by increasing the excretion of Na+, K+ and Cl- ions in the urine. The extract also showed significant anti-inflammatory effect by ...

  17. Importance des recombinaisons ARN dans l'évolution des lutéovirus

    OpenAIRE

    Chalhoub, B.A.; Lapierre, H.D.

    1995-01-01

    Luteoviruses were recognized as a plant virus group by the International Committee on Taxonomy of Viruses (ITCV) in 1975. They have a number of biological properties in common such as their isometric particles, their restriction to phloem tissue and their dependence on aphid vectors for transmission. They were initially separated into 2 distinct subgroups on the basis of their serological relatedness and cytopathological effects. During the last few years, complete genome sequences and organi...

  18. Der Peipussee/Peipsi järv Fischereiche Ostgrenze der EU / Arne von Maydell

    Index Scriptorium Estoniae

    Maydell, Arne von

    2012-01-01

    Mööda Peipsi järve kulgeb alates 1. maist 2004 Euroopa Liidu ja Venemaa vaheline piir. Suur siseeveekogu on üks suuremaid järvi Euroopas. Järv on väga kalarikas. Nii vene kui eesti kultuuris on Peipsi järvel oma koht

  19. Kriging interpolation in seismic attribute space applied to the South Arne Field, North Sea

    DEFF Research Database (Denmark)

    Hansen, Thomas Mejer; Mosegaard, Klaus; Schiøtt, Christian

    2010-01-01

    Seismic attributes can be used to guide interpolation in-between and extrapolation away from well log locations using for example linear regression, neural networks, and kriging. Kriging-based estimation methods (and most other types of interpolation/extrapolation techniques) are intimately linke...

  20. Advanced Planning Concepts in the Closed-Loop Container Network of ARN

    NARCIS (Netherlands)

    Le Blanc, H.M.; van Krieken, M.G.C.; Krikke, H.R.; Fleuren, H.A.

    2004-01-01

    In this paper we discuss a real-life case study in the optimization of the logistics network for the collection of containers from end-of-life vehicle dismantlers in the Netherlands.Advanced planning concepts like dynamic assignment of dismantlers to logistic service providers are analyzed by a simu

  1. Sotsiaaltöötaja muutuvas keskkonnas / Riina Kiik, Arne GrınningsΜter

    Index Scriptorium Estoniae

    Kiik, Riina, 1967-

    2006-01-01

    Tartu Ülikooli ning Norra töö- ja sotsiaaluuringute instituudi Fafo projekti "Vaesus, sotsiaalabi ja sotsiaalne kaasatus - arengud Eestis ja Lätis võrdlevas perspektiivis" käigus uuriti sotsiaaltöö ning sotsiaalpoliitika suhteid, sotsiaaltöö abi vajavate sihtrühmade muutumist. Skeem. Tabel. Vt. samas: Lõppes Eesti, Läti ja Norra ühine uurimisprojekt

  2. Päevad on laused : [luulekava] / Ene Mihkelson ; koost. Arne Merilai

    Index Scriptorium Estoniae

    Mihkelson, Ene, 1944-

    2005-01-01

    Sisu: "Ühel väga pimedal väga lagedal väljal kus must taevas..." ; "Luuletaja elas pimedas toas ja ootas nägemusi..." ; "Ma lähen ma tulen ma olen ma seisan alati paigal..." ; "Miks meeldib mulle tetraeeder just karjamaal..." ; "Igavene on ilmaköis..." ; "Elu ongi jumalagajätt väljamõeldud..." ; "Kui olin saanud neljaseks Nii väga kiitis..." ; "Meid oli üks tüdruk Me rääkisime..." ; "Olin kaua endaga ma isekeskis õppisin..." ; "Varemed ei põle need vajuvad mulda..." ; "Juustes kasvab valgus..." ; "Küll tahaks vabaneda valeluulest..." ; "Ta armastus on surm..." ; "Minult on küsitud, kas ma saan keerulisemalt ja ma olen öelnud..." ; "Ta haridus oli lünklik, omandatud peamiselt iseõppimise..." ; "Valge kala ujub läbi metsa..." ; "Sinagi kuuled vist kuidas..." ; "Raual on raua kõla..." ; "Need köied ripuvad..." ; "Ärkasin kolmekümne seitsme aastasena..." ; "Üksteise sisse on minek asjadel ja elul..." ; "Mitte metsade vahelt vaid põldude äärest..." ; "Hämarusest tulevad ja hämarusse lähevad näod..." ; "Ta jutustas, mida nägi, ja see oli nii, nagu oleksid kõik..." ; "Mu päevatöö on read mu päevatöö on vari..." ; "Minevik on müüa..." ; "Üks kauge küla tappis ennast ise..." ; "Suur must auk on küla sees..." ; "Rooste on rahulik Rooste..." ; "Mees kes pianisti sõrmeluid ükshaaval murdnud..." ; "Kellele tema oma hinge müüs..." ; "Tuletan sulle meelde et oleme palju..." ; "Sest tema oli barbar mitte päritolu tõttu, vabast tahtest..." ; "Kui veel reagi kirjutad..." ; "Sügavale on taevas mind matnud..." ; "Kes ta siis ikkagi oli: inimene eikuskilt, miks ta ei..." ; "Me läheme ürgsele maale seal pilvede kodu..." ; "Kannan sõelaga aega..." ; "Jumal sina oled näinud mu kujutluste..." ; "Tõstsin kivi mille all elas vähk..." ; "See hingelõpp see võppumine..." ; "Risti alla pandi sinu keha..." ; "Igal ajal ööl on musta värvi..." ; "Vahest elaski kord mees kelle..." ; "Vast ainult üks meil on see päris hull..." ; "Arturi kollased silmad..." ; "Lumi on katnud kinni varemed ja kuusehekk kasvanud..." ; "Kord jäävad ainult jooned ajalukku..." ; "Meie kirjutame luuletusi hõredale õhule..." ; "Ammutamatu on õhtu mil läheme koju..." ; "Väike poiss igavesti narmendavas palitus..." ; "Aadu oli mu klassivend..." ; Kell viis kui pole lund

  3. Evaluation of analgesic activity of Terminalia arjuna (Roxb.) Wight and Arn bark: A tribal claim

    OpenAIRE

    Gupta, Anurag; Nishteswar, K.; Shukla, Vinay J.; Ashok, B.K.

    2014-01-01

    Background: Plants occupy an important place in folk medicine all over the world for centuries and indigenous communities have developed their own specific knowledge on plant resources, uses, management, and conservation. Research interest and activities in the area of ethno medicine have increased tremendously in the last decade. Currently, scientists are evincing keen interest in the scientific evaluation of ethno medical claims. Bark powder of Arjuna (Terminalia arjuna [Roxb.] Wight and Ar...

  4. O ingresso da psicanálise no sistema de saúde pública na Argentina El ingreso del psicoanálisis en el sistema de salud pública de la Argentina The arrival of psychoanalysis in the Argentine public health system

    Directory of Open Access Journals (Sweden)

    Alejandro Antonio Dagfal

    2009-09-01

    alternativa de formación y de atención psicoanalítica más allá de la asociación oficial, que comenzó a perder el monopolio de los "usos legítimos" del psicoanálisis. En este trabajo se estudia particularmente el caso del servicio de psicopatología del Hospital Lanús, dirigido por Mauricio Goldenberg entre 1956 y 1972, ya que ilustra muy bien este proceso de expansión y transformación del psicoanálisis. Se ha utilizado una metodología clásica en el campo de la historia, basada en el análisis de textos y documentos referentes a la época estudiada.After 1955, there was in Argentina a social and cultural renewal, in which psychoanalysis ceased to be a private practice, limited to the wealthy residents of Buenos Aires. Freudian ideas arrived to new institutional settings, where they suffered several transformations allowing them to enlarge its public. For example, the use that was made, in certain public institutions, of some techniques based on psychoanalysis, such as group psychotherapy, involved a remarkable multiplication of the number of patients that were treated. At the same time, this practice stemming from psychoanalysis was no longer an exclusive right of the members of the Argentine Psychoanalytic Association, for it could be carried out by physicians and psychologists beyond its ranks. Thus, an alternative space for analytic training and treatment was created, and the official association begun to lose its monopole over the "legitimate uses" of psychoanalysis. In this paper we focus in the case of the Psychopathology Service of Lanús Hospital, directed by Mauricio Goldenberg Between 1956 and 1972. It is a good example of this process of expansion and transformation of a "plebeian" psychoanalysis. The methodology that has been used is a classical one in the field of history, which is based on the analysis of texts and documents referring to the period of study.

  5. Analysis of a possible experimental assessment of a prototype fuel element containing burnable poison in the RA-3 reactor

    International Nuclear Information System (INIS)

    The Argentine RA-3 research reactor (5 MW) is presently operated with LEU fuel by the National Atomic Energy Commission (CNEA). It belongs to the group of nuclear installations controlled, from the radiological and nuclear safety point of view, by the Nuclear Regulatory Authority (ARN). A new type of fuel elements containing burnable absorbers, with similar enrichment as the standard fuel elements but greater fissile contents, has recently been proposed for a new Argentine reactor design (RRR). In this framework the ARN considers interesting, if technically possible, the performance of an experiment in the RA-3 reactor. The experiment might enable, for such fuel element containing burnable poison, the verification of its neutronic behaviour under irradiation as well as a validation of the calculation line by comparison to measured values. It should be desirable that such experiment could reproduce as much as possible those conditions estimated for the RRR reactor, still under design in Argentina, having Silicide fuel elements with burnable poison, in the shape of cadmium wires in their structure. We here analyse a possible experiment consisting in the loading of a prototype fuel element with burnable poison in a normally loaded RA-3 core configuration. It would essentially be a standard RA-3 fuel element, having cadmium wires in its frame. This experiment would enable the verification of the prototype behaviour under irradiation, its operation limits and conditions, and particularly, the reactivity safety margins established in Argentine Standards, both calculated and measured. The main part of the experiment would imply some 200 full power days of operation at 5 MW, which would be drastically reduced if the reactor power is increased to 10 MW, as foreseen. We also show that under the proposed conditions, the experiment would not represent a significant penalty to the reactor normal operation. (author)

  6. Nuclear activity. Decree No. 1.390. Regulation of Law No. 24.804 (27-Nov-1998; B.O. 4-Dec-1998)

    International Nuclear Information System (INIS)

    This decree regulates various aspects of the National Law of Nuclear Activity of the Argentine Republic, in order to determine its scope, define the procedures for its application, and establish the executive functions of the institutions emerging from this Law: Empresa Nucleoelectrica Argentina Sociedad Anonima (NASA), Comision Nacional de Energia Atomica (CNEA) and the Autoridad Regulatoria Nuclear (ARN), former Ente Nacional Regulador Nuclear. The National State shall establish the nuclear policy and shall develop the Research and Development functions through the Comision Nacional de Energia Atomica (CNEA) and the regulatory and control functions through the Autoridad Regulatoria Nuclear (ARN). The nuclear activities of production, research, development and service rendering which might be organised commercially, shall be implemented within the framework of the nuclear policy and regulation exercised within the competence of the above mentioned organisms. The Commission shall have to assume the responsibility of the management of radioactive wastes of low, medium and high activity and establish the acceptance requirements that shall have to be approved by the ARN. Moreover, it shall determine the shut-down of the nuclear power plants and any other relevant nuclear facility concurrently with ARN, through the Shut-down Project of each facility. With the aim of the privatisation of the nuclear power generation activity depending from the enterprise NASA, the constitution of a society is set up: 'Generadora Nuclear Argentina Sociedad Anonima' (GENUAR SA). Also, the amount of the royalty that shall be paid to CNEA for research and development activities is fixed. The above mentioned society will be the holder of the concession of the use of nuclear goods and the responsible entity for the construction and/or operation licenses

  7. A situação de trabalho do pessoal de enfermagem no contexto de um hospital argentino: um estudo sob a ótica da ergonomia La situación de trabajo del personal de enfermería en el contexto de un hospital argentino: un estudio sobre la óptica de la ergonomía The work situation of the nursing personnel from an Argentine hospital: a study based on ergonomics

    Directory of Open Access Journals (Sweden)

    Azucena Del Valle Royas

    2001-01-01

    Full Text Available Com o objetivo de caracterizar a situação de trabalho do pessoal de enfermagem num hospital Argentino através da identificação das características dos trabalhadores, das atividades executadas e do ambiente laboral, utilizou-se como pressuposto metodológico a Ergonomia. Buscando o diagnóstico da situação de trabalho foram realizadas entrevistas com 74 trabalhadores, sendo 17 enfermeiros e 57 auxiliares de enfermagem. Por meio dos resultados obtidos, constatou-se que a situação de trabalho estudada apresenta problemas relacionados a organização do trabalho, divisão de tarefas, falta de política voltada à melhoria da capacitação profissional e a segurança no trabalho, promoção à saúde dos trabalhadores, adequação de materiais e equipamentos. Com base da Ergonomia de correção são apresentadas sugestões.Con el objetivo de caracterizar la situación de trabajo del personal de enfermería en un hospital argentino a través de la identificación de las características de los trabajadores, de las actividades ejecutadas y del ambiente laboral, se utilizó como presupuesto metodológico la Ergonomía. Buscando el diagnóstico de la situación de trabajo fueron realizadas entrevistas con 74 trabajadores, siendo 17 enfermeros y 57 auxiliares de enfermería. Por medio de los resultados obtenidos, se constato que la situación de trabajo estudiada presente problemas relacionados con la organización del trabajo, división de tareas, falta de política orientada al mejoramiento de la capacitación profesional y la seguridad en el trabajo, promoción a la salud de los trabajadores, adecuación de materiales y equipos. Con base en la Ergonomía de corrección se presentan sugerencias.The present study aimed at characterizing the work situation of the nursing personnel from an Argentine Hospital through the identification of the characteristics of the workers, the executed activities and the work environment, using the methodological

  8. La monnaie, la politique et la possibilité d’un mode de développement à nouveau fondé sur le marché intérieur au Brésil et en Argentine Money, politics and the possibility of a development mode based again on the internal market in Brazil and Argentina Moneda, política y la posibilidad de un modo de desarrollo de nuevo volcado al mercado interno en Brasil y Argentina

    Directory of Open Access Journals (Sweden)

    Jaime Marques Pereira

    2012-04-01

    Full Text Available Ce travail s’attache à discerner si l’accélération de la croissance grâce à une politique de redistribution et de demande en Argentine et au Brésil durant la dernière décennie signifie l’émergence d’un modèle de développement redonnant au marché intérieur le rôle moteur de la croissance qu’il eut avant la libéralisation. L’analyse est menée en termes de gouvernement de l’action collective. On étudie la formation des anticipations en tant qu’objet d’un gouvernement de promesses de revenus monétaires, adossé au pouvoir de persuasion des discours sur le modèle de développement. Les anticipations sont analysées à partir d’une conception de la monnaie comme fait symbolique, politique et économique. On les appréhende ainsi comme opération cognitive historiquement située que structure la triple propriété fonctionnelle de la monnaie à être : (i une forme symbolique en tant qu’unité de compte dont l’acceptation repose sur un modèle de développement figurant une visibilité du long terme, (ii une institution qui incarne le pouvoir politique de garantir un régime d’émission et de change dont la crédibilité détermine la visibilité à moyen terme, et (iii une valeur de marché des moyens de paiement fixant à court terme celle des divers types de revenus perçus ou à percevoir. Cette analyse montre que l’opposition des choix d’un taux de change compétitif en Argentine et apprécié au Brésil, respectivement associés à une émission accommodante ou restrictive, reflète des agencements spécifiques des groupes d’intérêts qui impliquent pareillement un blocage de la transition à un nouveau mode de développement car ils sont dans un cas comme dans l’autre également soumis au pouvoir monétaire des créanciers dans l’arbitrage entre niveaux de fiscalité et d’endettement public, ce qui empêche tout changement de la structure de financement de l’économie et donc la

  9. The national law on nuclear activity: some consequences

    International Nuclear Information System (INIS)

    This article describes the contents of the new National Law on Nuclear Activities of the Argentine Republic, analysing the functions of the National Atomic Energy Commission (CNEA), the Nuclear Regulatory Authority (ARN) (former National Board of Nuclear Regulation -ENREN) and the privatisation of the nuclear power generation performed by the enterprise Nucleoelectrica Argentina S.A. (NASA). It also includes some comments about political and legislative records of the Law in the framework of the Nation's reorganization undertaken by the National Government for the privatisation of the rendering of public services, such as the production of energy and related activities. The Law was approved by Law 24.804 of April 2, 1997, and published in the Official Bulletin of the Argentine Republic on April 25, 1997. In accordance with the provisions of this Law, the National Government, through the above mentioned organisations, will fix the nuclear policy and the functions of research, development, surveillance and control of the nuclear activity. Also, as part of the execution of the nuclear policy, all the obligations accepted by Argentina as signatory party to the Treaty for the Prohibition of Nuclear Weapons in Latin America and the Caribbean (Tlatelolco Treaty), the Treaty on Non-Proliferation of Nuclear Weapons (TNP), the Agreement between the Argentine Republic and the Federative Republic of Brazil through the Brazilian-Argentine Agency for Accounting and Control of Nuclear Materials (ABACC) and the International Atomic Energy Agency (IAEA) to enforce Safeguards, in addition to the commitments signed by Argentina as a member of the Suppliers Group and the National Control System for Sensitive Exports, shall be met

  10. 1996 Annual report

    International Nuclear Information System (INIS)

    This annual report present information of the main activities on the scope of the radiation protection and nuclear safety of the Nuclear Regulatory Authority (ARN) of the Argentina during 1996. The activities are developed in 10 chapters and 2 appendices, were are described the activities and the bases of the Argentine Regulatory System. The followings chapters and appendices are: 1.-Evolution of the nuclear regulatory activities in the Argentina since the beginnings in the CNEA. 2.-Regulatory system, laws and regulations. 3.-Institutional relations with national and international organizations. 4. and 5.-Safeguards and inspections of the nuclear installations. 6.-Radiation control of the occupational and public doses. 7.-Radiological emergencies. 8.-Projects and tasks scientific-technological. 9.-Training courses and meetings. 10.-Economic and human recourses. Appendix I.-Regulatory documentation. Appendix II.- Inspections of nuclear installations

  11. 1997 Annual report

    International Nuclear Information System (INIS)

    This annual report present information of the main activities on the scope of the radiation protection and nuclear safety of the Nuclear Regulatory Authority (ARN) of the Argentina during 1997. The activities are developed in 11 chapters and 1 appendix, were are descripting the activities and the bases of the Argentine Regulatory System. The following chapters and the appendix are: 1.-Evolution of the nuclear regulatory activities in the Argentina. 2.-Regulatory system, laws and regulations. 3.-Institutional relations with national and international organizations. 4.-Inspections and evaluations of the nuclear reactors. 5.-Inspections and evaluations of the radioactive facilities. 6.-Inspections and evaluations of safeguards and physical protection. 7.-Radiation control of the occupational and public doses. 8.-Radiological emergencies. 9.-Projects and tasks scientific-technological. 10.-Training courses and meetings. 11.-Economic and human recourses. Appendix.- Inspections of radioactive facilities

  12. 1998 Annual report

    International Nuclear Information System (INIS)

    This annual report presents information of the main activities on the scope of the radiation protection and nuclear safety of the Nuclear Regulatory Authority (ARN) of the Argentina during 1998. The activities are developed in 11 chapters and 2 appendixes, where are describing the activities and the bases of the Argentine Regulatory System. The following chapters and the appendixes are: 1.-Evolution of the nuclear regulatory activities in the Argentina. 2.-Regulatory system, laws, transport of radioactive materials, safety at the management of radioactive wastes, regulatory documents issued. 3.-Institutional relations with national and international organizations. 4.-Inspections and evaluations of the radiological and nuclear safety. 5.-Inspections and evaluations of safeguards and physical protection. 6.-Occupational surveillance. 7.-Environmental surveillance. 8.-Radiological emergencies. 9.-Scientific and technological activities. 10.-Training and technical information. 11.-Human and economic resources. Appendix 1.-Documents and regulatory licensings. Appendix 2.-Inspections to radioactive facilities

  13. Inheritance of reaction to Leveillula taurica (Lev. Arn. in Capsicum annuum L. Herança da reação à Leveillula taurica (Lev. Arn. em Capsicum annuum L.

    Directory of Open Access Journals (Sweden)

    Sally Ferreira Blat

    2005-01-01

    Full Text Available The use of fungicides to control powdery mildew in sweet pepper has been ineffective and genetic resistance is the best alternative. Resistance sources identified in Capsicum annuum L. are rare and unsatisfactory. The purpose of this work was to study the inheritance of C. annuum reaction to powdery mildew. Three homozygous powdery mildew resistant parents, HV-12, Chilli and #124 and three susceptible lines, 609, 442 and 428 were used to obtain seven F1's and respectively their generations F2: HV-12 x 609, 442 × HV-12, 428 × HV-12, Chilli × 609, #124 × 609, Chilli × HV-12 and #124 × HV-12. The powdery epidemic was natural using inoculum from highly sporulating susceptible pepper host. Powdery mildew host reaction evaluations were carried out during the fruit production using a rating system based on disease severity scales varying from 1 (resistant to 5 (highly susceptible. The experimental design was completely randomized. The following genetic parameters were estimated: locus numbers, gene action, heritability coefficient, expected selection gain and observed progress in F3 generation, and possibly allelic relationship among resistance genes of different resistance sources. The HV-12×609 cross was the only one that showed absence of dominance. Other genetically analyzed crossings showed dominant and epistatic effects. Resistance was characterized as being due to at least four pairs of genes. The heritability and selection gains estimates were high. The resistance mechanisms of #124, Chilli and HV-12 showed differences in their expression.O uso de fungicidas no controle do oídio do pimentão tem se mostrado ineficaz, sendo a resistência genética a melhor alternativa. As fontes de resistência identificadas em Capsicum annuum L. são raras e não satisfatórias. O objetivo deste trabalho foi estudar a herança da reação de C. annuum ao oídio. Três progenitores resistentes e homozigóticos, HV-12, Chilli e #124 e três suscetíveis, 609, 442 e 428 foram usados na obtenção de sete híbridos e respectivas gerações F2: HV-12 × 609, 442 × HV-12, 428 × HV-12, Chilli × 609, #124 × 609, Chilli × HV-12 e #124 × HV-12. A epidemia de oídio ocorreu de maneira natural a partir de inóculo mantido em plantas de pimentão suscetíveis. As avaliações das reações ao oídio foram feitas na fase de frutificação, através de uma escala de notas de 1 (resistente a 5 (altamente suscetível. O delineamento experimental utilizado foi inteiramente casualizado. Foram estimados, os números de locos, ação gênica, coeficiente de herdabilidade, ganho de seleção esperado e o progresso observado em F3 e possíveis relações de alelismo entre os genes que governam a resistência. O cruzamento HV-12 × 609 foi o único em que a reação de resistência mostrou ausência de dominância. Nos demais cruzamentos detectaram-se efeitos dominantes e epistáticos. A herança foi caracterizada sendo governada por no mínimo quatro pares de genes. As herdabilidades e ganhos de seleção estimados foram altos. O mecanismo de resistência dos progenitores resistentes #124, Chilli e HV-12 mostraram diferenças de expressão e natureza genética.

  14. Book Review: Planetveien 12 (Planet Road 12: Arne Korsmo and Grete Prytz Kittelsen’s House Bokanmeldelse: Planetveien 12: Arne Korsmo og Grete Prytz Kittelsens hus. Et viktig bidrag til en betydningsfull boligs biografi

    Directory of Open Access Journals (Sweden)

    Astrid Skjerven

    2013-01-01

    Full Text Available The book deals with one of postwar modernism masterpieces that complete work of art and housing. The author treats the house’s ideas, planning and construction, cooperation partners and the changes that have been made through time. Especially the latter is of high relevance in relation to our own time’s practicing of and discussions on recycling and transformation of our cultural heritage. It also contains biography and discussion of the architect’s other activities, as well as the author's interpretation of the house. Among the missing are a detailed treatment of the house as a meeting place and a more analytical review of the relationship with the partners, especially Grete Prytz Kittelsen. And not least issues related to the use versus preservation could have been devoting more attention. All in all, this is a rare good, interesting and important book. Rather than an exhaustive presentation, the book is an appetizer to what was created in conjunction with Planetveien 12 as a vehicle, and the central theme of transformation.Boken tar for seg et av etterkrigsmodernismens hovedverk som allkunstverk og bolig. Forfatteren behandler husets idégrunnlag, planlegning og konstruksjon, samarbeidspartnere og hvilke endringer som er blitt foretatt gjennom tiden. Spesielt det siste er av høy relevans i forbindelse med vår egen tids praktisering av og diskusjoner omkring gjenbruk og transformasjon av våre kulturminner. Den inneholder også biografi og omtale av hans øvrige virksomhet, samt forfatterens tolkning av Planetveien. Blant det som savnes er en utdypende behandling av husets betydning som internasjonal møteplass og en mer analytisk gjennomgang av forholdet til samarbeidspartnerne, spesielt Grete Prytz Kittelsen. Og ikke minst kunne problematikken knyttet til bruk versus bevaring vært viet større oppmerksomhet. Alt i alt er dette en sjeldent god, engasjerende og viktig utgivelse. Snarere enn noen uttømmende fremstilling er boken en appetittvekker til det som ble skapt i forbindelse med Planetveien, og til det sentrale temaet transformasjon.

  15. Atividade antimicrobiana da Terminalia arjuna Wight & Arn.: uma planta etnomedicinal contra patógenos causadores de infecções no ouvido Antimicrobial activity of Terminalia arjuna Wight & Arn.: an ethnomedicinal plant against pathogens causing ear infection

    Directory of Open Access Journals (Sweden)

    Kamal Rai Aneja

    2012-02-01

    Full Text Available Infecções de ouvido representam uma das doenças mais comuns do mundo. Diferentes agentes etiológicos são responsáveis por tais infecções. OBJETIVO: Avaliar o potencial antimicrobiano de extratos de folhas e da casca de Terminalia arjuna contra Staphylococcus aureus, Acinetobacter sp., Proteus mirabilis, Escherchia coli, Pseudomonas aeruginosa e Candida albicans - patógenos que causam infecções de ouvido e como esses extratos se comparam às medicações tópicas atualmente disponíveis. MATERIAIS E MÉTODOS: Metanol, etanol, acetona, extratos aquosos (quentes e frios de folhas e casca da T. arjuna foram testados para avaliação de suas atividades antimicrobianas. RESULTADOS: Dos três solventes orgânicos avaliados, o extrato acetônico das folhas foi o que teve o melhor resultado contra S. aureus. O extrato orgânico da casca exibiu quase o mesmo grau de ação antimicrobiana entre todas as bactérias gram-negativas, exceto contra P. aeruginosa. Entretanto, o extrato aquoso da casca de T. arjuna exibiu boa atividade contra S. aureus. Nenhum dos extratos exibiu atividade antifúngica. CONCLUSÃO: O extrato orgânico obtido a partir da casca e folhas de T. arjuna pode ser usado para tratar infecções bacterianas de ouvido, especialmente aquelas causadas por S. aureus, que exibiu maiores zonas de inibição do que gotas herbáceas; entretanto, ainda necessitamos de estudos mais detalhados - como ensaios in vivo e avaliações de propriedades farmacocinéticas para avaliarmos sua utilidade terapêutica no tratamento de infecções de ouvido.Ear infection is one of the common diseases occurring throughout the world. Different etiological agents are responsible for ear infections. AIM: To assess the antimicrobial potential of Terminalia arjuna leaves and bark extracts against Staphylococcus aureus, Acinetobacter sp., Proteus mirabilis, Escherchia coli, Pseudomonas aeruginosa and Candida albicans, pathogens causing ear infections and their comparison with locally available ear drops. MATERIALS AND METHODS: Methanol, ethanol, acetone, aqueous (hot and cold extracts from the leaves and bark of T. arjuna were tested for their antimicrobial activity. RESULTS: Of the three organic solvents evaluated, acetonic leaf extract was found to be best against S. aureus. Organic bark extract showed almost equal inhibition of all tested Gram negative bacteria except P. aeruginosa. However, aqueous extract of T. arjuna bark exhibited good activity against S. aureus. All the extracts were unable to exhibit any antifungal activity. CONCLUSION: Organic extract obtained from the T. arjuna bark and leaves may be used to treat the bacterial ear pathogens especially S. aureus, which has shown greater inhibition zones than the herbal drops, however, we still need more detailed studies as in vivo testing and pharmacokinetics properties for their therapeutic utility in treating ear infections.

  16. Pollination and seedling ecology of Decalepis hamiltonii Wight & Arn. (Periplocaceae, a commercially important, endemic and endangered species

    Directory of Open Access Journals (Sweden)

    A.J.S. Raju

    2009-10-01

    Full Text Available Decalepis hamiltonii is a woody climber and annual bloomer. The flowers are characterized by nectariferous coralline corona, gynostegium and pollinia containing tetrads. The floral features such as greenish white corolla, mild fragrance, flat-shape for easy access to floral rewards, and ovary protection from the biting mouthparts of the pollinator make up cantharophilous pollination syndrome. Brachinus beetle is the principal pollinator. Thrips use floral buds to raise their offspring; they also effect pollination while collecting nectar; but they are important largely for self-pollination due to their short distance flying ability. The plant is a self-incompatible, obligate outcrosser and is substantiated by 2% natural fruit set, but each fruit produces numerous seeds. Fruits dehisce during the dry season and seed dispersal is by wind. Seeds germinate as soon as they fall in a favourable place, but only a small percentage establish seedlings. Over-exploitation, bottlenecks in sexual reproduction and seedling establishment may contribute to the endangered status of D. hamiltonii.

  17. Effects of Dichrostachys cinerea (l. Wight & Arn (Fabaceae on herbaceous species in a semi-arid rangeland in Zimbabwe

    Directory of Open Access Journals (Sweden)

    Clarice Mudzengi

    2014-08-01

    Full Text Available Anthropogenic alteration of an environment and other disturbance regimes may enable the expansion of some native species into new geographical areas, a phenomenon observed with Dichrostachys cinerea. Five D. cinerea invaded sites, each approximately one hectare in size were assessed for the effects of D. cinerea on native herbaceous species diversity, richness, basal cover, litter cover, top hamper and plant vigour. The same attributes were studied in five uninvaded sites adjacent to, and equal in size to each invaded site. Forty herbaceous species were identified in the area. There were significant differences (P < 0.05 noted in species richness, basal cover, litter cover, top hamper, plant vigour, and species diversities between invaded and uninvaded sites, with uninvaded sites recording higher values than invaded sites. Altitude, erosion and the edaphic variables pH, N, P and K, which were included as explanatory variables, also differed significantly (P<0.05 between invaded and uninvaded sites. Of the 30 D. cinerea invaded plots established for herbaceous species assessments, 26 were positively correlated with altitude, erosion, pH, P, N and K. It is imperative to find ways of managing D. cinerea in order to reduce its adverse effects on herbaceous species.

  18. Influence of the hot filament on the electrical breakdown characteristics in the presence of Ar/N2

    Science.gov (United States)

    Borkhari, Arian Fateh; Yasserian, Kiomars

    2013-01-01

    The influence of a hot filament on the electrical breakdown characteristics is studied for different ratios of argon and nitrogen gases for a wide range of pressure. The vacuum tube consists of two parallel plane stainless steels used as cathode and anode accompanied with a tungsten filament located behind the cathode. Paschen's curves are obtained for different ratios of argon and nitrogen as a function of pressure for various electric currents of the hot filament. The first and second Townsend coefficients as well as the ionization efficiency and secondary ionization coefficient are obtained for different filament currents. In addition, the influences of the nitrogen partial pressure on the forgoing parameters are obtained. It is shown that, increase of the filament current causes the decrease of the electrical breakdown voltage which is more pronounced in low pressures. Furthermore, introducing the nitrogen gas leads to the increase of the breakdown voltage and decrease of the ionization efficiency as well as the first and second Townsend coefficients. Moreover, it is concluded that, in the middle range of pressure, the presence of the hot filament results to the electrical breakdown which reveals the linear features.

  19. Antibacterial and antifungal activity of Terminalia arjuna Wight & Arn. bark against multi-drug resistant clinical isolates

    Institute of Scientific and Technical Information of China (English)

    Sukalyani Debnath; Diganta Dey; Sudipta Hazra; Subhalakshmi Ghosh; Ratnamala Ray; Banasri Hazra

    2013-01-01

    Objective: To evaluate antimicrobial activity of Terminalia arjuna (T. arjuna) bark against clinical strains of multi-drug resistant bacteria, and Candida spp. isolated from patients, as well as the corresponding reference strains.Methods:were evaluated by agar-well diffusion method, followed by determination of minimum inhibitory concentration (MIC) by broth micro-dilution method. The clinical isolates were studied for antibacterial susceptibility by Kirby and Bauer disk diffusion technique. The antimicrobial activity of water, methanol and chloroform extracts of T. arjuna bark Results: The water and methanolic extracts of T. arjuna bark produced significant zones of inhibition against twenty-two tested bacteria including eight uropathogens. MIC values against the bacteria were found in the range of 0.16 to 2.56 mg/mL. The chloroform extract did not exhibit antibacterial activity. The polar extracts of T. arjuna also demonstrated strong antifungal effect against eight species of Candida, with MIC between 0.16 and 0.64 mg/mL. The antimicrobial efficacy of the polar extracts was found to be commensurate with high polyphenol content in contrast to the non-polar (chloroform fraction). Conclusions: This study has revealed the therapeutic prospect of T. arjuna bark for the treatment of microbial diseases. The polar fraction of the bark could be used for development of novel antimicrobial agents, particularly against urinary tract infections, and candidiasis/candidaemia.

  20. A Fucking Tragedy - Krimien som vor tids tragedie? Arne Dahls Europa Blues og Jan Arnalds Övervåld

    DEFF Research Database (Denmark)

    Kirkegaard, Peter

    2010-01-01

    Europa Blues (2001) - kvalificerer til en sådan bestemmelse. Også krimien kan nærme sig en form for katharsis, ikke blot i narrativ forstand, som opklaringens vellykkethed, men snarere i en krydret stemning af heling og bevidshed om helingens sårbarhed. Som musik, som en sofistikeret, melankolsk blues-fornemmelse....

  1. Morphology, pharmacological activity, pharmaceutical preparation, doses and side effect of Coccinia indica (Wight & Arn.):An overview

    Institute of Scientific and Technical Information of China (English)

    Mayank Kumar; Shashi Alok; Sanjay Kumar Jain; Amita Verma; Alok Mahor; Monika Sabharwal

    2013-01-01

    Traditional system of medicine consists of large number of plants with various medicinal and pharmacological importances and hence represents a priceless tank of new bioactive molecules.Coccinia indica belongs to the family Cucurbitaceae. It is a rapidly growing, perennial climber or trailing vine. Traditionally different parts of this plant namely the roots, leaves and fruits are used in folklore medicine for several purposes like jaundice, diabetes, wound healing, ulcers, stomach ache, skin disease, fever, asthma, cough. The leaf and its constituents have been reported to possess hypoglycaemic, hypolipidemic and antioxidant properties. This review provides adequate information to develop suitable therapeutics out of these plant parts.

  2. Pollination biology of Impatiens cuspidate Wight and Arn. (Balsaminaceae, a rare and endemic balsam of the Western Ghats, India

    Directory of Open Access Journals (Sweden)

    A.K. Sreekala

    2011-06-01

    Full Text Available The pollination biology of Impatiens cuspidata, a rare and endemic balsam from the Western Ghats, has been studied with special reference to phenology, pollination, pollen-pistil interactions, breeding experiments and stigma receptivity. It flowers at night between 2330 and 0430 hr; flowering days extend up to 160 days in a year. The anther dehisced one day before anthesis, which confirmed the protandrous condition of the flower. Pollen-ovule ratio was calculated as 1729:1. Hawk moths, honeybees, flies and butterflies are the major pollinators of Impatiens cuspidata. Pollen grains are oval, having an average diameter of 28.24μm. Pollen viability by FCR test confirmed that 82% pollen grains are viable on the day of anthesis. Best pollen germination along with 1636μm tube development was achieved in Brewbakers medium. Stigma was more receptive (up to 80% on the first day of flower opening. It chiefly reproduced by means of cross pollination, where the fruit set was only 40%, but artificial cross-pollination through xenogamy enhanced fruit set up to 80%. The plant is an obligate out-crosser and self incompatible, as confirmed by various hand pollination experiments. Seed germination in natural and controlled conditions was only 20%. Its dependence on a specialized habitat, bottlenecks in sexual reproduction, low percentage of seed germination and other abiotic factors could be reasons for its limited distribution and endemism.

  3. Estimating the mechanical stability of Pinus nigra Arn. using an alternative approach across several plantations in central Italy

    Directory of Open Access Journals (Sweden)

    Cantiani P

    2015-12-01

    Full Text Available Black pine has been used often in central and southern Italy to reforest mountainous areas depleted by the intensive use of natural resources. The main purpose of establishing pine forests in Italy was to protect the soil from excessive erosion, and also to facilitate the natural succession toward mixed forests with deciduous species. The most common silvicultural treatments in Europe currently aim at maximizing the stability of the stands and facilitating the transition from pure to mixed stands comprising a larger component of native tree species. In this work, we investigated the relationships between the living whorls number and four indexes of individual tree stability: the slenderness ratio, the crown depth, the crown projection, and an eccentricity index of the canopy. The data set used was composed of 1098 trees from ten black pine plantations located in central Italy. Our results demonstrate that the living whorls number can be handily used to predict the slenderness ratio with an error of 18%. A non-parametric model based on a reduced number of field measures was obtained as a support for thinning operations aimed at improving single tree stability.

  4. Reconfigurable pyramidal antenna loaded by a cut-off waveguide-application to ARNS/RNSS services

    OpenAIRE

    Hebib, Sami; Aubert, Hervé; Pascal, Olivier; Fonseca, Nelson; Ries, Lionel; Lopez, Jean-Marc

    2009-01-01

    International audience A novel reconfigurable and circularly polarized antenna topology for satellite application services, based on a pyramidal geometry, is proposed. Frequency agility is simply obtained by loading the radiating elements by Radio-Frequency switches. The ground plane of the antenna is perforated and loaded by a cut-off and open-ended waveguide. The length of this waveguide is adjusted to achieve a good trade-off between rear radiation and impedance matching. A specific app...

  5. Global results of the participation of ARN Argentina in the quality assessment program, EML-DOE since 1995-2004

    International Nuclear Information System (INIS)

    In this report, the results obtained by the laboratories of the Nuclear Regulatory Authority in measurements of alpha, beta and gamma emitters in four types of matrix are presented, in the frame of the Quality Assessment Program organized for the Environmental Measurements Laboratory of the United States of America corresponding to 19 exercises of the period 1995-2004. (author)

  6. Aitab jumalateenistust paremini korraldada / Tiiu Pikkur ; kommenteerinud Tiit Salumäe, Jaak Salumäe, Arne Hiob

    Index Scriptorium Estoniae

    Pikkur, Tiiu, 1947-

    2009-01-01

    17. märtsil peeti Tallinna Piiskoplikus Toomkirikus tänujumalateenistus, kus esitleti Eesti luterliku rahvakiriku esimese Eestimaal koostatud ja trükitud liturgiakäsiraamatu - neljaköitelise kirikukäsiraamatu kaht esimest osa: "Jumalateenistuste käsiraamatut" ja "Talituste käsiraamatut"

  7. Evolución del crecimiento radial en un rodal adulto de Pinus nigra Arn. de la provincia de Lleida

    OpenAIRE

    Meya i Nos, David; González Molina, José Ma.; Aunós Gómez, Álvaro

    2001-01-01

    Se ha estudiado un rodal adulto (edad media = 139 años) de Pinus nigra ssp. salzmannii var. pyrenaica en el W de la comarca del Solsonès (Lérida). Se han medido y extraído testigos de madera de 97 árboles adultos, a partir de los cuales se han medido e interdatado 13.340 anillos anuales, construyendo una cronología de crecimientos que abarca desde 1818 a 1996. Se han analizado las relaciones entre diversos parámetros dendrométricos medidos y los crecimientos observados, encontrándose en gener...

  8. Who to Blame: Irrational Decision-Makers or Stupid Modelers? (Arne Richter Award for Outstanding Young Scientists Lecture)

    Science.gov (United States)

    Madani, Kaveh

    2016-04-01

    Water management benefits from a suite of modelling tools and techniques that help simplifying and understanding the complexities involved in managing water resource systems. Early water management models were mainly concerned with optimizing a single objective, related to the design, operations or management of water resource systems (e.g. economic cost, hydroelectricity production, reliability of water deliveries). Significant improvements in methodologies, computational capacity, and data availability over the last decades have resulted in developing more complex water management models that can now incorporate multiple objectives, various uncertainties, and big data. These models provide an improved understanding of complex water resource systems and provide opportunities for making positive impacts. Nevertheless, there remains an alarming mismatch between the optimal solutions developed by these models and the decisions made by managers and stakeholders of water resource systems. Modelers continue to consider decision makers as irrational agents who fail to implement the optimal solutions developed by sophisticated and mathematically rigours water management models. On the other hand, decision makers and stakeholders accuse modelers of being idealist, lacking a perfect understanding of reality, and developing 'smart' solutions that are not practical (stable). In this talk I will have a closer look at the mismatch between the optimality and stability of solutions and argue that conventional water resources management models suffer inherently from a full-cooperation assumption. According to this assumption, water resources management decisions are based on group rationality where in practice decisions are often based on individual rationality, making the group's optimal solution unstable for individually rational decision makers. I discuss how game theory can be used as an appropriate framework for addressing the irrational "rationality assumption" of water resources management models and for better capturing the social aspects of decision making in water management systems with multiple stakeholders.

  9. Continuités et ruptures dans l’accumulation et la régulation en Amérique latine dans les années 2000 : le cas de l’Argentine, du Brésil et du Chili Continuities and breakdowns in accumulation and regulation during the 2000s: the case of Argentina, Brazil and Chile Continuidades y rupturas en la acumulación y la regulación en América Latina durante los años 2000 : el caso de Argentina, Brasil y Chile

    Directory of Open Access Journals (Sweden)

    Egidio Luis Miotti

    2012-05-01

    Full Text Available Après avoir rappelé les traits marquants permettant de caractériser l’évolution globale des économies latino-américaines, ce travail examine les principales transformations intervenues au niveau des formes institutionnelles et des régimes d’accumulation en Argentine, Brésil et Chili pendant les années 2000. Dans le sillage d’un nouveau cycle de croissance associé à une évolution favorable des termes de l’échange et au boom des exportations vers la Chine, l’analyse des cas permet d’identifier une grande diversité de trajectoires nationales. En Argentine, les transformations les plus marquées suite à la crise de 2001 se situent au niveau de la déconnexion croissante de l’économie à l’égard de la finance internationale et de la participation croissante de l’État dans la régulation d’ensemble. En ce qui concerne le Brésil, le processus de financiarisation de l’économie amorcé dans les années 1990 a conféré un rôle décisif au régime monétaire dans le mode de régulation bien que l’État renforce sa présence au sein des formes institutionnelles dans les années 2000. Le Chili, pour sa part, connaît, dans le cadre d’un mode de régulation stabilisé, un affaiblissement du dynamisme de l’activité économique, mettant en évidence les limites de l’accumulation extensive.Même si les sources de vulnérabilité diffèrent selon les pays, tous les trois sont sensibles à un éventuel retournement des prix des exportations primaires. En même temps, les trois pays analysés partagent le risque de subir les effets de « maladie hollandaise » pénalisant la diversification productive et l’emploi.This paper reviews the main features and transformations of the institutional forms and accumulation regimes during the 2000s in three Latin American countries: Argentina, Brazil and Chile. All of them have benefited from terms of trade gains and from an export boom following China s economic

  10. Science Information Programs: The Argentine Telex Network for Scientific and Technical Information.

    Science.gov (United States)

    National Academy of Sciences, Washington, DC.

    This document reports on two projects jointly sponsored by the National Academy of Science (NAS) (USA) and the Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET) (ARGENTINA). The first is the creation of a telex network for scientific libraries and documentation centers in Argentina, designed to improve access to, and delivery…

  11. Morphological and speleothemic development in Brujas Cave (Southern Andean Range, Argentine): palaeoenvironmental significance

    Science.gov (United States)

    Sancho, Carlos; Peña, José Luis; Mikkan, Raúl; Osácar, Cinta; Quinif, Yves

    2004-02-01

    Brujas Cave, in the Southern Andean Range, is a well-known endokarstic site in Argentina. However, the origin and evolution of this cave system are poorly known. Based on morphological cave features as well as characteristics of cave deposits, we propose a meteogene drawdown cave genesis, including a change from phreatic to vadose conditions related to the high rate of fluvial downcutting in the area. During the vadose period, various cave-related deposits, including authogenic calcite and gypsum speleothems, allogenic volcanic ash and external tufas were deposited. Gypsum crusts are the oldest cave deposits identified (90.2-64.3 ky BP). Their origin, deduced from isotopic characteristics ( ∂34S=9.6‰), is related to the oxidation of pyrite contained in the Jurassic limestone bedrock as well as the dissolution of overlying Jurassic-Triassic evaporite formations. Gypsum crust deposition is associated with evaporation of water flowing and seeping into the cave during arid environmental conditions. Calcite deposits precipitated from flowing water under equilibrium conditions represent the main speleothem growth period (67.6-34 ky BP in age). Their stable isotope values ( ∂13C=-3‰ to -5‰ and ∂18O=-9‰ to -11‰) may indicate slightly humid and warm conditions related to the regional Minchin lacustrine phase and global oxygen isotope stage 3. Following this stage, a seismic event is evidenced by accumulations of broken stalactites. Seepage calcite speleothems covering cave walls were deposited under disequilibrium conditions by evaporation, probably during Holocene time. Finally, another more recent gypsum deposition period represented by gypsum balls has been differentiated. Micromorphological as well as isotopic ( ∂34S=5.6‰) data indicate that these gypsum forms are related to cyclic processes (solution-deposition) from water seeping into the cave under arid conditions. In addition, intense volcanic activity in the area during Holocene time is deduced from allogenic volcanic ash and lapilli located mainly at the entrance cave. At present, limited hydrological activity is observed in the cave and small tufa deposits at karstic discharge points are evidenced. We conclude that the geomorphological evolution of Brujas Cave was controlled by climatic changes (wet and dry stages) under semiarid environmental conditions in a very active tectonic and volcanic setting during Late Quaternary time.

  12. PUBLIC SHIPYARDS AND ARGENTINE SHIPBUILDING INDUSTRY: RECENT HISTORY AND FUTURE CHALLENGES

    Directory of Open Access Journals (Sweden)

    Cintia Russo

    2013-06-01

    Full Text Available This paper deals with the study of recent developments in the shipbuilding industry in Argentina and public shipyards (Astillero Rio Santiago, and Talleres Navales Dársena Norte. Our hypothesis implies a strong relationship between the State, acting as a regulator, producer, and financier and the shipbuilding industry, in particular the public shipyards. From a conceptual point of view, the aim of this paper is to contribute to a broader debate about the relations between the State and the industrialisation. From an empirical point of view, we identify and explain this link trough the path of an industrial sector. The consequences of the orthodox policy in the shipbuilding industry led to a systematic reduction of the activity, causing the closure of shipyards, and the near disappearance of the naval parts suppliers. Changes in the course of public policy since the beginning of the XXI century created the conditions of possibility of public shipyards.

  13. La politique alimentaire et la consommation dans l’Argentine péroniste

    OpenAIRE

    MILANESIO, Natalia

    2012-01-01

    Dès les débuts du gouvernement de Juan Domingo Perón, les pratiques alimentaires constituent non seulement une dimension essentielle de la politique de l’État, mais aussi un élément central de la propagande gouvernementale. Cet article s’oppose à la séparation analytique de l’étude des politiques de celles des imaginaires afin d’ouvrir de nouvelles pistes de réflexion sur le péronisme. Dans un premier temps, nous mettons l’accent sur le rôle central joué par les dimensions économiques, politi...

  14. ENTREPRENEURS RESILIENCE IN THE FORESTRY INDUSTRIAL SECTOR OF THE PROVINCE OF MISIONES – ARGENTINE REPUBLIC

    Directory of Open Access Journals (Sweden)

    Nilda, Tañski

    2010-01-01

    Full Text Available As part of the outcome of a research paper called associative management between SMEs (Small and Medium Enterprises in the field of industry and forestry-related activities in the Province of Misiones, this study is carried out. It analyzes the discourses of entrepreneurs of a group of SMEs in the sector of the forest-industry, to verify the existence or not of resilient behaviors and identify the characteristics of these behaviors or styles of fighting adversity by themselves. One describes the contextual hardships which they go through and detect the resilience factors as actions carried out in the different situations.

  15. Deforestation of "degraded" rangelands: The Argentine Chaco enters the next stage of the Anthropocene

    Science.gov (United States)

    Twenty years ago I completed my Master’s work in the Chaco forests of northern Argentina. The native forests are, in fact, rangelands. In addition to livestock grazing, there is timber extraction, wildlife harvest (think tegu lizard cowboy boots), and charcoal production. I took part in a project co...

  16. Training of human resources on radiation protection and safe use of radiation sources. Argentine experience

    International Nuclear Information System (INIS)

    Argentina has a long experience in Radiation Protection training since 25 years ago. In the present work we analyse those variable and non variable training aspects according to scientific development, increasing radiation source diversity (including new concepts like orphan sources and security), mayor concern about patient in Radiation Protection, previous exposures, etc. We comment what we consider the main steps in the training of Radiation Protection specialists, like university degree, post graduate education distinguishing between formative and informative contents and on the job training. Moreover, we point out the trainees aptitudes and attitudes to be developed in order to work properly in this interdisciplinary field. (author)

  17. RED MEAT, MICRONUTRIENTS AND ORAL SQUAMOUS CELL CARCINOMA OF ARGENTINE ADULT PATIENTS.

    Science.gov (United States)

    Secchi, Dante Gustavo; Aballay, Laura Rosana; Galíndez, María Fernanda; Piccini, Daniel; Lanfranchi, Héctor; Brunotto, Mabel

    2015-09-01

    Introducción: la detección de grupos de riesgo de cáncer oral permite reducir las tasas de morbilidad y mortalidad típicas de esta patología. Objetivo: se analizó el rol de carnes rojas, macronutrientes y micronutrientes en pacientes con carcinoma oral de células escamosas (COCE) en un estudio de casos y controles llevado a cabo en Córdoba, Argentina. Métodos: estudio de casos y controles 3:1, ambos sexos, con edades comprendidas entre 24-80 años. La información sobre la dieta fue recogida mediante un cuestionario de frecuencia de alimentos cuali-cuantitativo. La regresión logística se aplicó para evaluar la asociación entre el estado caso/control y la ingesta diaria de carne roja/ macronutrientes/micronutrientes/energía. Resultados: los micronutrientes y minerales de la dieta que mostraron valores medios significativos de consumo común en los casos relativos a los controles eran hierro, fósforo, vitaminas B1, B5, B6, E y K y selenio. La medición de la asociación estimada por regresión logística mostró una asociación significativa entre carne roja, grasas, energía diaria, fósforo, vitamina B5, vitamina E, ingesta de selenio y presencia de COCE. Conclusión: un alto consumo de grasas, fósforo, vitamina B5, vitamina E, selenio y carne roja parece estar relacionado con la presencia de COCE en Córdoba, Argentina. En relación con el consumo de carne roja y el riesgo de COCE, la investigación futura debería centrar su atención en la reducción de la complejidad de las relaciones de la dieta y la enfermedad, así como en reducir la variabilidad de los datos de ingesta mediante la estandarización de los criterios de admisión a fin de aplicar estrategias sencillas en salud pública para el reconocimiento de grupos de riesgo de COCE.

  18. [The subgenus Megachile (Dasymegachile) Mitchell with special reference to the Argentine species (Hymenoptera: Megachilidae)].

    Science.gov (United States)

    Durante, Silvana; Abrahamovich, Alberto H; Lucia, Mariano

    2006-01-01

    Seventeen species of Megachile (Dasymegachile) are recognized, twelve species from Chile, nine species from Argentina, three from Peru and one from Bolivia. Descriptions, illustrations, and keys for the identification for the Argentinean species are provided. The geographical distributions in Argentina are revised; M. cinerea and M. melanotricha are recorded for the first time from Argentina. Two species are also newly recorded from Chile. PMID:17273711

  19. Cytotoxic effect of Argentine medicinal plant extracts on human hepatocellular carcinoma cell line.

    Science.gov (United States)

    Ruffa, M J; Ferraro, G; Wagner, M L; Calcagno, M L; Campos, R H; Cavallaro, L

    2002-03-01

    Methanolic extracts from Achyrocline satureioides (Dc.) Lam, Aristolochia macroura Gomez, Lithraea molleoides (Vell.) Engl., Schinus molle L., unlike those from Celtis spinosa Spreng, Chenopodium ambrosioides L., Petiveria alliacea L., and Plantago major L. showed cytotoxic activity against a human hepatocellular carcinoma cell line, Hep G2. Schinus molle L. was the most active (IC50=50+/-7 microg/ml). These results call for further studies of these extracts.

  20. Salvadora persica agro-ecological suitability for oil production in Argentine dryland salinity.

    Science.gov (United States)

    Falasca, Silvia; Pitta-Alvarez, Sandra; del Fresno, Carolina Miranda

    2015-12-15

    One of the major causes of crop stress is soil or water salinity. Thus, selection of the best species for cultivation in semiarid and arid climates is fundamental. Salvadora persica is an evergreen perennial halophyte that can grow under extreme conditions, from very dry environments to highly saline soils. Based on international bibliography, the authors outlined an agro-ecological zoning model to determine the potential cultivation zones for S. persica in Argentina. This model may be applied to any part of the world, using the agro-ecological limits presented in this work. All the maps were developed by the implementation of a geographic information system (GIS) that can be updated by the further incorporation of complementary information, with the consequent improvement of the original database. The overlap of the agroclimatic suitability map on the drylands' saline soils and the drylands' alkaline soils maps, determined the agro-ecological zoning. Since some areas in the agro-ecological zoning can overlap with land that is already assigned for other uses, protected areas, current land use/cover of the different zones, and urban areas maps were incorporated into the GIS and subtracted by a mask. This resulted in the delimitation of "potential cultivation zoning", thus avoiding possible conflicts surrounding the use of land and making the agro-ecological zonation more efficient. There is a broad agro-ecological zone for cultivation of S. persica that extends from Northern Argentina to approximately 41° South latitude, under dry-subhumid to semiarid climates. Lands classified with different degrees of suitability in the potential cultivation zoning could be used for production of this species for energy purposes on lands that are either unsuitable for food production or currently assigned for other purposes. This paper represents pioneering work since there are no previous studies concerning the introduction of S. persica in Argentina.

  1. Financialisation vs. Development Finance: the Case of the Post-Crisis Argentine Banking System

    OpenAIRE

    Cibils, Alan; Allami, Cecilia

    2013-01-01

    The end of the Bretton Woods era and the emergence of neoliberal economics resulted in profound transformations in domestic economies and international economic relations. The keystone of these transformations was the liberalisation of domestic and international financial markets. Faulty theoretical foundations and the resulting catastrophic policy failures prompted a vast literature by critical economists on the international financial architecture and domestic financial structures best suit...

  2. Typologies of Crime in the Argentine Provinces. A Panel Study 2000-2008

    OpenAIRE

    Cerro, Ana María; Rodríguez Andrés, Antonio

    2011-01-01

    This study examines the socioeconomic and deterrence determinants of crime in Argentina for different typologies of property crimes and crimes against person. We employ a panel of Argentinean regions over the years 2000-2008. Our econometric methodology follows GMM estimator commonly applied for dynamic panel data model. The results give evidence that unemployment has a positive and significant effect on total and property crimes but its impact depends on the typology of the offense. However ...

  3. Cytotoxic effect of Argentine medicinal plant extracts on human hepatocellular carcinoma cell line.

    Science.gov (United States)

    Ruffa, M J; Ferraro, G; Wagner, M L; Calcagno, M L; Campos, R H; Cavallaro, L

    2002-03-01

    Methanolic extracts from Achyrocline satureioides (Dc.) Lam, Aristolochia macroura Gomez, Lithraea molleoides (Vell.) Engl., Schinus molle L., unlike those from Celtis spinosa Spreng, Chenopodium ambrosioides L., Petiveria alliacea L., and Plantago major L. showed cytotoxic activity against a human hepatocellular carcinoma cell line, Hep G2. Schinus molle L. was the most active (IC50=50+/-7 microg/ml). These results call for further studies of these extracts. PMID:11849838

  4. Hyperinflation argentine de 1989 : une interprétation post-keynésienne

    OpenAIRE

    Marie, Jonathan

    2014-01-01

    L’article poursuit un double objectif. Le premier vise à proposer une interprétation de l’hyperinflation compatible avec la théorie post-keynésienne. L’analyse des phénomènes hyperinflationnistes par les auteurs post-keynésiens mais aussi par les auteurs structuralistes permet de nourrir notre réflexion. Nous mettons l’accent sur l’importance de la présence d’une devise dans les comportements domestiques au cours des hautes inflations. D’ailleurs, selon nous, l’hyperinflation est indissociabl...

  5. Quaternary tectonic movements in the Argentine Puna, 24/sup 0/ to 27/sup 0/ s latitude

    Energy Technology Data Exchange (ETDEWEB)

    Strecker, M.R.; Alonso, R.; Rivelli, F.; Mon, R.

    1985-01-01

    The Puna of NW Argentina, one of the highest plateaus in the world, is the southern continuation of the Andean Altiplano geomorphic province of Peru and Bolivia. The region is not seismically active and reports of neotectonic movements are scarce. However, the areas of Salar de los Pastos Grandes, Salar del Hombre Muerto and Sierra Calalaste clearly have experienced Quaternary tectonic movements. At Salar de los Pastos Grandes, early Pleistocene lake sediments are offset by reverse faulting. At Salar del Hombre Muerto, Quaternary pyroclastic and debris-flow deposits are unconformable over sediments 5.86 m.y. old that were folded during the Pliocene-Pleistocene Diaguita deformation. Within the Quaternary sediments two separate deformational phases with reverse faulting and shallow thrusting are recognized. The timing of movement is well defined since the deformed strata are covered by a basalt flow 0.75 m.y. old. The flow in turn is affected by normal faulting. Similar normal faults associated with basalt flows were found at Sierra Calalaste. These observations are in accord with pronounced extensional movements and basaltic volcanism at the Calama-Olacapato-Toro Lineament (0.2 m.y. old flows) and might document the Quaternary transition from a compressive to an extensional tectonic regime in the southern Puna.

  6. Long-term Outcome of Lupus Nephritis Class II in Argentine Patients

    Science.gov (United States)

    Collado, Maria Victoria; Dorado, Enrique; Rausch, Silvia; Gomez, Graciela; Khoury, Marina; Zazzetti, Federico; Gargiulo, María; Suarez, Lorena; Chaparro, Rafael; Paira, Sergio; Galvan, Laura; Juarez, Vicente; Pisoni, Cecilia; Garcia, Mercedes; Martinez, Liliana; Alvarez, Analia; Alvarez, Clarisa; Barreira, Juan; Sarano, Judith

    2016-01-01

    Background There is controversy in medical literature over the outcome of patients with lupus nephritis (LN) class II. The aim of this study was to explore the risk of histological transformation (HT) and possible factors related to negative response to treatment in patients with mesangial LN class II. Methods A retrospective and multicenter study was carried out that includes patients who had received a diagnosis of LN class II on their first renal biopsy. Creatinine, urine sediment, and proteinuria were recorded at the time of the first biopsy, 6 months, and 1, 2, and 5 years after the first biopsy. Response to treatment, HT, and long-term outcome were evaluated. Results Forty-one patients were included. The manifestation at first biopsy was proteinuria greater than 0.5 g/d in 28 patients (68.29%; 8 [28.57%] of 28 patients had nephrotic syndrome), hematuria in 18 patients (43.90%), and deterioration of renal function in 3 patients (7.31%). During the follow-up (median, 8 years; range, 1–35 years), a new biopsy was performed in 18 patients (43.90%), and in 17 patients (17/18 [94.44%]), there was HT. Median time at rebiopsy was 32 months (range, 11–305 months). Of the 18 patients who had a second biopsy, 10 (55.55%) were on hydroxychloroquine versus 100% (19/19) of patients who did not undergo the procedure (P = 0.001). A year after the first renal biopsy, there are data available from 34 patients; of them, 24 patients (70.58%) had achieved response, and 10 patients (29.41%) had no response (NR) (missing data in 7). A higher 24-hour urinary protein at 6 months was predictor of worse outcome at 1 year, with statistical significance difference for the nonresponder group (median proteinuria, 2.3 g/d [range, 0–4.7 g/d]) compared with responders (median proteinuria, 0.28 g/d [range, 0–1.7 g/d]) (P = 0.0133). In the long-term follow-up (5 years), HT was the main cause of unfavorable outcome and was measured in 78.57% of patients (11/14 patients). Conclusions This series shows a high rate of HT in long-term follow-up. Proteinuria at 6 months made it possible to set aside patients who will have an unfavorable outcome in the long term and who will thus benefit from a more aggressive treatment. The results suggest that hydroxychloroquine had a nephroprotective effect. PMID:27152693

  7. Generation of Gridded Daily Weather Ensembles for Decision Support in the Argentine Pampas

    Science.gov (United States)

    Verdin, A.; Rajagopalan, B.; Kleiber, W.; Katz, R. W.; Podesta, G. P.

    2014-12-01

    We introduce a stochastic weather generator for the variables of minimum temperature, maximum temperature, and precipitation occurrence. Temperature variables are modeled in vector autoregressive framework, conditional on precipitation occurrence. Precipitation occurrence arises via a probit model, and both temperature and occurrence are spatially correlatedusing spatial Gaussian processes. Additionally, local climate is included by spatially-varying model coefficients, allowing spatially-evolving relationships between variables. The method is illustrated on a network of stations in the Pampas region of Argentina where nonstationary relationships and historical spatial correlation challenge existing approaches. The covariancestructure of this network of stations is then used to produce daily gridded weather scenarios which can be used to drive hydrologic models. Inclusion of other covariates such as seasonal total precipitation and global climate drivers allows the potential for decadal projections, an increasingly useful tool for decision support.

  8. Mastering the crisis? Sustaining governance in the Argentine Redes de Trueque

    NARCIS (Netherlands)

    G.M. Gomez (Georgina)

    2011-01-01

    textabstractAbstract: The Redes de Trueque (RT) thrived during the economic crisis of 2001 – 2002 in Argentina and still stand out as the largest Complementary Currency System in the world. These local exchange networks reach a large scale during times of severe economic distress, but as large non-s

  9. Saprolegnia oliviae sp. nov. isolated from an Argentine river (Tierra del Fuego Province, Argentina).

    Science.gov (United States)

    Steciow, Mónica Mirta

    2003-02-28

    Saprolegnia oliviae sp. nov. is described from litter (floating dead twigs, leaves and roots) in the Olivia River, Ushuaia Department, Tierra del Fuego Province (Argentina). The new species is illustrated and compared with other species of the genus. Distinguishing characteristics of S. oliviae are the production of smooth oogonia (with some lateral or terminal projections) and the absence of antheridial branches on the majority of the oogonia, but when present, they are mostly diclinous, at times oogonia are supplied with androgynous and monoclinous antheridial branches. The oogonial stalks are predominantly short and straight or long and bent, curved or many times coiled; oospores are distinctive subcentric, (1-) 15-50 (-70) per oogonium. Morphological details of the new species and its comparison with other described species are discussed here. PMID:12620629

  10. Pathways towards to improve the feasibility of dairy pastoral system in La Pampa (Argentine

    Directory of Open Access Journals (Sweden)

    Elena Angón

    2015-11-01

    Full Text Available Over the last decade, pastoral systems have been intensified in response to an increasing demand for meat and milk, by generating environmental and social problems due to its high dependence on external inputs. The objective of this research was to analyze the economic feasibility of dairy pastoral system in La Pampa (Argentina. The main successful factors were identified through technical efficiency analysis, and subsequently improvement actions were suggested. The technique data envelopment analysis creates efficiency indexes by comparing the performance of each farm with the best practice, which defines the production frontier. The farms were classified attending to two criteria: first, the level of efficiency, second, the regular use of supplementation feed. The results showed that about 40% of the farms were efficient and the efficiency rate of the farms without supplementary feed was 80%. A 70% of the farms uses their own grassland resources adjusting milk yield to the capacity of the pasture. The technical efficiency for this group is 14% higher than the rest. Inefficient farms can adopt different strategies to enhance by practicing benchmarking. One of the examples studied shows two ways to do it: on the one hand the extensification by producing at a minimum cost; on the other hand, the technification, linked to the increase of stocking rate and the use of strategic supplementation. Finally, small changes in the management of the farms positively impact on performance, use of resources, and the sustainability of the system.

  11. Medical program in radiation protection from the Argentine Nuclear Regulatory Authority

    International Nuclear Information System (INIS)

    This program is carried out by the Radio pathology Laboratory, belonging to the Nuclear Regulatory Authority. The program includes the following aspects: 1) planning and organization of medical response in radiological emergencies. A three-level system of medical assistance has been developed considering: a- determination of each level of care and their potential roles; b- choice of medical facilities for medical assistance; c- preparedness for medical response (equipment s, logistic support, human resources, training). 2) scientific research activities related to radio pathology subjects: a- hematological indicators in radioinduced aplasia; b- biological and biophysical dosimeters; c- radiation effects on the developing brain. 3) edition of practical guidelines for diagnostic and treatment: a- external and internal radioactive contamination; b- acute radiation syndrome; c- radiological burns. 4) medical advising in radioprotection (risk assessment in radiation workers, medical exposures, potential effects of prenatal irradiation). 5) international interactions: activities related with the constitution of a Latin American radio pathology network, linkage with international reference centers. (author)

  12. The nuclear fuel elements' world market and the position of the Argentine Republic as producer

    International Nuclear Information System (INIS)

    The development of the nuclear fuel elements' industry is analyzed, both in the present and projected world market, up to the year 2000, in the light of the situation affecting the nucleoelectric industry. By means of the offer/demand function, an analysis is made of the behaviour of the fuel elements' market throughout the fuel cycle structure. The regional unbalances between availability and demand of uranium resources are considered, as well as the factors having an unfavorable incidence on the fuel cycle's economic equation. The economic structure to be used for the calculation of the nucleoelectric generating cost is presented, in order to situate, within said nuclear economy, the component corresponding to the fuel cycle cost. Emphasis is placed on the 'front end' stages of the fuel cycle, but also considering those stages belonging to the 'back end'. Argentina's fuel elements market and its present and projected nucleoelectric park are analyzed, indicating their relative position in the world market. (R.J.S.)

  13. Speaking to the Hollow: Silence and Memory in the Last Argentine Dictatorship

    OpenAIRE

    Martínez Cabrera, Erika

    2012-01-01

    This article is an analysis of the last Argentinean dictatorship discourse and its articulation through the instances of silence and memory. To elucidate them, we deal with the technologies of violence and its discursive consequences: the exhaustion of the collective ability to tell stories, the denial of collective aberration and the perversion of language. From there, we study the discursive axes through which the fiction of the Process was built on: messianism, manichaeism and organicism. ...

  14. Speaking to the Hollow: Silence and Memory in the Last Argentine Dictatorship

    Directory of Open Access Journals (Sweden)

    Martínez Cabrera, Erika

    2012-01-01

    Full Text Available This article is an analysis of the last Argentinean dictatorship discourse and its articulation through the instances of silence and memory. To elucidate them, we deal with the technologies of violence and its discursive consequences: the exhaustion of the collective ability to tell stories, the denial of collective aberration and the perversion of language. From there, we study the discursive axes through which the fiction of the Process was built on: messianism, manichaeism and organicism. Finally we evaluate the development of new symbolic discourses in response to dogmatism, the creation of partial, fragmented and provisional fictions that challenged the official story.

  15. Les biocarburants en Argentine : facteurs et enjeux de la production de biodiesel de soja

    OpenAIRE

    Guibert Martine; Carrizo Silvina Cecilia

    2012-01-01

    In 2006, Argentina has sanctioned a national law to regulate biofuel production and consumption. Since 2007, soybean actors started producing biodiesel for international market -especially to Europe- and the country quickly became the major biodiesel exporter. In 2010, around twenty processing units started supplying the domestic market. Diesel sold in Argentina contained 5% of biodiesel. The obligation to add 5% of biodiesel to diesel has passed to 7% and the goal is to increase this percent...

  16. History and the Popular: Rewriting National Origins at the Argentine Bicentenary

    OpenAIRE

    Catriona McAllister

    2016-01-01

    This article explores two texts that offer a self-conscious, metafictional rewriting of Argentina’s founding revolution in May 1810 at the time of the nation’s Bicentenary. It aims to draw out the political focus of both texts (a novel by Washington Cucurto and a play by Manuel Santos Iñurrieta) by analysing the ways in which they draw on heavily politicized historical discourses in their fictional appropriations of this moment of origin. This analysis leads to the emergence of two very diffe...

  17. Saprolegnia bulbosa sp. nov. isolated from an Argentine stream: taxonomy and comparison with related species.

    Science.gov (United States)

    Steciow, Mónica Mirta; Paul, Alan; Bala, Kanak

    2007-03-01

    Saprolegnia bulbosa sp. nov. was isolated from floating and decaying twigs and leaves in El Gato stream, Partido de La Plata, Buenos Aires Province, Argentina. The distinctive characteristics of S. bulbosa are the product of smooth oogonia and predominantly contorted monoclinous, androgynous and diclinous antheridia. The oogonial stalks are usually bent, curved or once coiled; oospores are subcentric, (1) 2-15 (45) per oogonium and are variable in size. Taxonomical description of this new species, its comparison with related oomycetes of the genus and the nucleotide sequences of the internal transcribed region (spacers ITS1, ITS2 and the gene 5.8S) of its rRNA gene are given here. PMID:17328749

  18. Changing cocaine use practices: neo-liberalism, HIV-AIDS, and death in an Argentine shantytown.

    Science.gov (United States)

    Epele, María E

    2003-07-01

    Cocaine consuming patterns are changing among young drug users who live in "The Villa," a shantytown located in Greater Buenos Aires. After years of drug injection dominance, cocaine snorting became the preferred drug consuming practice while deep and fast structural and cultural transformations have been taken place as part of the neoliberal program implemented in Argentina during the 1990s and the final economic default in 2001-2002. In this article, I analyze how drug users understand and explain these changing practices, including the following aspects: deteriorating economic conditions, the transformations of survival strategies, moral codes, social network organization, violence regulating mechanisms, criminal activity, and police repression. Based on an ethnographic study carried out during the last eight months in "The Villa," I suggest that intense and generalized cocaine injection in shantytowns has logistic, organizational, and structural requirements that cocaine snorting does not have. Particularly, I explore two main aspects associated with these changing cocaine consumption practices: the consequences of the many Acquired Immunodeficiency Syndrome (AIDS)-related deaths, which occurred among older drug injectors, and the progressive social fragmentation tied to the extreme economic deprivation, deepened social exclusion, and growing everyday violence. PMID:12908808

  19. Salvadora persica agro-ecological suitability for oil production in Argentine dryland salinity.

    Science.gov (United States)

    Falasca, Silvia; Pitta-Alvarez, Sandra; del Fresno, Carolina Miranda

    2015-12-15

    One of the major causes of crop stress is soil or water salinity. Thus, selection of the best species for cultivation in semiarid and arid climates is fundamental. Salvadora persica is an evergreen perennial halophyte that can grow under extreme conditions, from very dry environments to highly saline soils. Based on international bibliography, the authors outlined an agro-ecological zoning model to determine the potential cultivation zones for S. persica in Argentina. This model may be applied to any part of the world, using the agro-ecological limits presented in this work. All the maps were developed by the implementation of a geographic information system (GIS) that can be updated by the further incorporation of complementary information, with the consequent improvement of the original database. The overlap of the agroclimatic suitability map on the drylands' saline soils and the drylands' alkaline soils maps, determined the agro-ecological zoning. Since some areas in the agro-ecological zoning can overlap with land that is already assigned for other uses, protected areas, current land use/cover of the different zones, and urban areas maps were incorporated into the GIS and subtracted by a mask. This resulted in the delimitation of "potential cultivation zoning", thus avoiding possible conflicts surrounding the use of land and making the agro-ecological zonation more efficient. There is a broad agro-ecological zone for cultivation of S. persica that extends from Northern Argentina to approximately 41° South latitude, under dry-subhumid to semiarid climates. Lands classified with different degrees of suitability in the potential cultivation zoning could be used for production of this species for energy purposes on lands that are either unsuitable for food production or currently assigned for other purposes. This paper represents pioneering work since there are no previous studies concerning the introduction of S. persica in Argentina. PMID:26348151

  20. An alternative view of the argentine crisis: structural flaws and structural adjustmet policy

    Directory of Open Access Journals (Sweden)

    Jan Kregel

    2003-01-01

    Full Text Available Este documento discute la explicación convencional sobre la crisis argentina. Contrario a lo que comúnmente se acepta, el problema no se debió a una laxa política fiscal, sino a debilidades estructurales en el tan alabado programa de estabilización instaurado al comienzo de la década de los noventa. El modelo fue incapaz de corregir el persistente monto de endeudamiento, lo cual expuso a la economía a choques externos y la hizo viciosamente dependiente de flujos de capital externo. La explicación de la caída de Argentina es puesta en perspectiva histórica pues se ofrece una detallada evolución de las decisiones del gobierno, los cambios políticos así como un detallado análisis del mecanismo de ajuste automático que, supuestamente, era la principal característica que ofrecía la Junta Monetaria. El documento hace alusión a la volatilidad que experimen-taron los llamados mercados emergentes durante la “frenética” década de los noventas. Por último, aunque no menos importante, aporta una acertada reflexión sobre la poste-ridad de la crisis.

  1. Sources and distribution of aliphatic and polyaromatic hydrocarbons in sediments from the Neuquen River, Argentine Patagonia.

    Science.gov (United States)

    Monza, Liliana B; Loewy, Ruth M; Savini, Mónica C; Pechen de d'Angelo, Ana M

    2013-01-01

    Spatial distribution and probable sources of aliphatic and polyaromatic hydrocarbons (AHs, PAHs) were investigated in surface sediments collected along the bank of the Neuquen River, Argentina. Total concentrations of aliphatic hydrocarbons ranged between 0.41 and 125 μg/g dw. Six stations presented low values of resolved aliphatic hydrocarbons and the n-alkane distribution indexes applied suggested a clear biogenic source. These values can be considered the baseline levels of aliphatic hydrocarbons for the river sediments. This constitutes important information for the assessment of future impacts since a strong impulse in the exploitation of shale gas and shale oil in these zones is nowadays undergoing. For the other 11 stations, a mixture of aliphatic hydrocarbons of petrogenic and biogenic origin was observed. The spatial distribution reflects local inputs of these pollutants with a significant increase in concentrations in the lower course, where two major cities are located. The highest values of total aliphatic hydrocarbons were found in this sector which, in turn, was the only one where individual PAHs were detected.

  2. A first shallow firn-core record from Glaciar La Ollada, Cerro Mercedario, central Argentine Andes

    Science.gov (United States)

    Bolius, David; Schwikowski, Margit; Jenk, Theo; Gäggeler, Heinz W.; Casassa, Gino; Rivera, Andrés

    In January 2003, shallow firn cores were recovered from Glaciar Esmeralda on Cerro del Plomo (33°14‧ S, 70°13‧ W; 5300 ma.s.l.), central Chile, and from Glaciar La Ollada on Cerro Mercedario (31°58‧ S, 70°07‧ W; 6070 ma.s.l.), Argentina, in order to find a suitable archive for paleoclimate reconstruction in a region strongly influenced by the El Niño-Southern Oscillation. In the area between 28° S and 35° S, the amount of winter precipitation is significantly correlated to the Southern Oscillation Index, with higher values during El Niño years. Glaciochemical analysis indicates that the paleo-record at Glaciar La Ollada is well preserved, whereas at Glaciar Esmeralda the record is strongly influenced by meltwater formation and percolation. A preliminary dating of the Mercedario core by annual-layer counting results in a time-span of 17 years (1986-2002), yielding an average annual net accumulation of 0.45 m w.e.

  3. WTO Safeguards and Trade Liberalization : Lessons from the Argentine Footwear Case

    OpenAIRE

    Baracat, Elías; Nogués, Julio J.

    2005-01-01

    The footwear case provides an example of the complexities of World Trade Organization (WTO) rules on the use of safeguards, and of the interaction of multilateral and regional processes of liberalization. As a result both of Argentina's unilateral liberalization and the removal of barriers within Mercosur, imports of footwear increased rapidly. As Mercosur provides no intra-regional safeguard mechanism, the government of Argentina responded by applying import relief and WTO safeguards against...

  4. Correlation between hygienic-dietary habits and casdiovascular risk factors in young adults argentine

    Directory of Open Access Journals (Sweden)

    Melina Erben

    2014-12-01

    Full Text Available Introduction: According to the World Health Organization, the cardiovascular disease (ECV is one of the most important public health problem in the world. The aim of this study was to evaluate the prevalence of ECV factors in a young adult population, and establish the interrelation of these variables through multivariate statistical analysis.Material and Methods: In a sample of 53 individuals of both sexes (18-30 years old, were carried out hygienic-dietary habits surveys, two reminders of 24 hours, anthropometric measurements (weight, height and a blood lipid profile: total cholesterol (Col, HDL, LDL and triglycerides (TG and Castelli Index (CI was calculated.Results: The mean values of Col, HDL, LDL, TG and IC were 183±32, 49.5±18, 107.5±29, 114±101, 4.21±1.85, respectively. 66% of individuals exhibited a disturbance in one or more blood lipids analyzed, 41% were overweight, 60% did not physical activity, 45% had a caloric intake above recommendations, 80% consumed more fat than recommended, 9.4% drank alcohol and 13.2% smoked. Through multivariate analysis was found a correlation between altered lipids profile, physical inactivity, Kcal. and fat excess intake. Moreover, association between normal lipids profile, physical activity and Kcal. and fat intake insufficient and adequate was found.Conclusions: There is a high prevalence of factors associated with ECV in the study population, and were found a correlation of the following risk factors: altered lipid profile, physical inactivity, Kcal. intake and excess fat.

  5. Correlation between hygienic-dietary habits and casdiovascular risk factors in young adults argentine

    OpenAIRE

    Melina Erben; María Gimena Galán; María Fernanda Simoniello

    2014-01-01

    Introduction: According to the World Health Organization, the cardiovascular disease (ECV) is one of the most important public health problem in the world. The aim of this study was to evaluate the prevalence of ECV factors in a young adult population, and establish the interrelation of these variables through multivariate statistical analysis.Material and Methods: In a sample of 53 individuals of both sexes (18-30 years old), were carried out hygienic-dietary habits surveys, two reminders of...

  6. Cucurto's Cardboard Coloring Book: Argentine Independence and other Stories to Recycle

    Directory of Open Access Journals (Sweden)

    Doris Sommer

    2010-06-01

    Full Text Available El presente artículo busca probar el carácter de materiales reciclables de los actuales discursos histórico y literario, como se puede constatar en el marco de las celebraciones oficiales con motivo del bicentenario de la independencia argentina. Para ello se analiza el trabajo adelantado por Washington Cucurto, seudónimo del escritor argentino Santiago Vega (1973, en su editorial Eloísa Cartonera (edición de textos a partir de materiales reciclables adquiridos a los cartoneros bonaerenses, su aguda mirada de los procesos migratorios desde diferentes lugares de Latinoamérica hacia Argentina y su peculiar manera de concebir la re-escritura de la literatura.This article tries to prove how present historical and literary discourses are recyclable materials, as the framework of Argentina’s Bicentennial Independence official celebrations shows. The work done by Washington Cucurto in his Eloisa Cartonera’s press (editing texts from recyclable materials, acquired from the Buenos Aires’ cardboards, his sharp view on the migratory processes from different places of Latin America toward Argentina and his particular way of thinking the re-writing of literature contribute to prove the recyclable character of these discourses.

  7. The environment in the development of firms' innovative capacities: Argentine industrial SMEs from different local systems

    OpenAIRE

    Gabriel Yoguel; Fabio Boscherini

    2000-01-01

    The new economic scenario increases the importance of the "innovative capacity" of the agents as crucial competitive instrument in order to attain the differentiating element required by the competitive process. Innovative capacity refers to the agents' capability to transform general knowledge into specific one using their stock of competencies and dynamic assets, including formal and informal , social and institutional environment of firms becomes increasingly important. The new competitive...

  8. Carbon mapping of Argentine savannas: Using fractional tree cover to scale from field to region

    Science.gov (United States)

    González-Roglich, M.; Swenson, J. J.

    2015-12-01

    Programs which intend to maintain or enhance carbon (C) stocks in natural ecosystems are promising, but require detailed and spatially explicit C distribution models to monitor the effectiveness of management interventions. Savanna ecosystems are significant components of the global C cycle, covering about one fifth of the global land mass, but they have received less attention in C monitoring protocols. Our goal was to estimate C storage across a broad savanna ecosystem using field surveys and freely available satellite images. We first mapped tree canopies at 2.5 m resolution with a spatial subset of high resolution panchromatic images to then predict regional wall-to-wall tree percent cover using 30-m Landsat imagery and the Random Forests algorithms. We found that a model with summer and winter spectral indices from Landsat, climate and topography performed best. Using a linear relationship between C and % tree cover, we then predicted tree C stocks across the gradient of tree cover, explaining 87 % of the variability. The spatially explicit validation of the tree C model with field-measured C-stocks revealed an RMSE of 8.2 tC/ha which represented ~30% of the mean C stock for areas with tree cover, comparable to studies based on more advanced remote sensing methods, such as LiDAR and RADAR. Sample spatial distribution highly affected the performance of the RF models in predicting tree cover, raising concerns regarding the predictive capabilities of the model in areas for which training data is not present. The 50,000 km2 has ~41 Tg C, which could be released to the atmosphere if agricultural pressure intensifies in this semiarid savanna.

  9. The Key Role of Cultural Preservation in Maize Diversity Conservation in the Argentine Yungas

    Science.gov (United States)

    Hilgert, Norma I.; Zamudio, Fernando; Cariola, Lucía

    2013-01-01

    Farmers' decisions on what to grow and why can contribute in understanding the conservation of agrobiodiversity. Culture and ethnicity are indicated as first-class factors leading preservation of heirloom cultivars but this has been little considered in studies examining factors that influence the loss or preservation of agrobiodiversity. We propose that corn's ethnotaxa of less diverse uses, which are also key partners in local cultural reproduction, are usually cultivated by a few households. We analyse if there is a relationship between uses and richness of cultivated ethnotaxa at household level and describe corn's medicinal and ritual uses. We found 25 cultivated ethnotaxa, heterogeneously distributed in the region, and we also found that ethnotaxa with less diverse uses are cultivated in fewer households. We identified that, at regional scale, richness is related with food use diversity. The most frequently cited medicinal uses were urinary and tract infections, diarrhoea, and liver disorders. Medicinal recipes involve combinations with other elements. Maize is an indispensable resource in the rituals that propitiate productive activity, to augur prosperity or misfortune according to signals. We have identified the vulnerability in preserving the richness of corn in the region and the factors that shape its cultivation at different scales. PMID:24078829

  10. Institutions, credibility and crisis: the inconsistencies of Argentine exchange rate policy (1991-2006

    Directory of Open Access Journals (Sweden)

    NICOLÁS CHERNY

    2015-03-01

    Full Text Available The purpose of this article is twofold. The first is to explain the time inconsistencies of the convertibility regime that led to the 2001 crisis. The argument suggests that the credibility requirements for convertibility induced a dynamic of legal, fiscal, financial and external commitments that increased exit costs and time inconsistencies. The second objective is to explain the tensions of the floating regime that replaced convertibility in 2002. We describe the effects of a floating exchange rate on macroeconomic imbalance and the growing tension between competitiveness and inflation.

  11. Consenso Argentino de Rehabilitación Respiratoria Argentine Consensus of Respiratory Rehabilitation

    OpenAIRE

    Martín Sivori; Roberto Benzo; Edgardo Rhodius; Enrique Jolly; Clarisa Boim; Marcela Saadia; Ernesto Conti; Iván Guevara; Daniel Carles; Carlos Victorio; Fabián Santini; Patricia Ratto; Ignacio Capparelli; Ernesto Prieto; Marcos Azvalinsky

    2004-01-01

    Un grupo de neumonólogos y kinesiólogos asociados a la Asociación Argentina de Medicina Respiratoria se reunieron con el objetivo de revisar la evidencia científica en Rehabilitación Respiratoria (RR), elaborar recomendaciones basadas en la evidencia para su aplicación local y promover su uso. RR es un programa multidisciplinario para el cuidado de pacientes con una alteración respiratoria crónica, ajustado individualmente, con el objetivo de lograr el máximo de actividad física, social y la ...

  12. Consenso Argentino De Ventilacion No Invasiva Argentine consensus of non-invasive ventilation

    Directory of Open Access Journals (Sweden)

    Ana R. Diez

    2005-10-01

    Full Text Available La ventilación no invasiva (VNI ha alcanzado notable difusión en los últimos años. El ahorro de las complicaciones causadas por la intubación traqueal la hace especialmente atractiva en pacientes que presentan insuficiencia respiratoria aguda (IRA no muy grave y que conservan cierta autonomía respiratoria. También se han descripto efectos terapéuticos en pacientes con insuficiencia respiratoria crónica de etiologías diversas. No obstante, los resultados obtenidos son variables según las circunstancias que motivan su aplicación. A fin de revisar la evidencia a favor de su uso se elaboró este Consenso referido particularmente a la VNI a presión positiva. Se describen su fundamento fisiopatológico, esencial para su correcta aplicación, y el equipamiento necesario para implementarla. La evidencia existente en la literatura establece definida utilidad de la VNI en la exacerbación de la EPOC y en el edema agudo de pulmón cardiogénico (Recomendación A. Su beneficio es aún incierto en pacientes con IRA secundaria a síndrome de dificultad respiratoria aguda, salvo en el subgrupo de pacientes inmunosuprimidos (Recomendación B. Los resultados son también favorables en la desvinculación de la asistencia respiratoria mecánica (ARM, especialmente en pacientes ventilados por exacerbación de EPOC (Recomendación A. En la insuficiencia respiratoria crónica se ha hallado mejoría en la calidad de vida y mayor sobrevida en pacientes con enfermedades restrictivas (Recomendación B, mientras que existe aún controversia sobre su utilidad en pacientes con EPOC estable (Recomendación C. La VNI debe ser aplicada con estándares de cuidados que son establecidos. Se revisan las eventuales complicaciones derivadas de su uso y el beneficio costo-efectividad ahorrando recursos de mayor complejidad y disminuyendo los riesgos que implica la ARM invasiva.Non-invasive ventilation (NIV is nowadays increasingly used. The significant decrease in tracheal intubation related complications makes it particularly attractive in patients with moderately acute respiratory failure (ARF who still have some degree of respiratory autonomy. It has also been used to support patients with chronic respiratory failure. However, final outcomes are variable according to the conditions which determined its application. This Consensus was performed in order to review the evidence supporting the use of positive pressure NIV. The patho-physiological background of NIV and the equipment required technology are described. Available evidence clearly suggests benefits of NIV in acute exacerbation of chronic obstructive pulmonary disease (COPD and in cardiogenic pulmonary edema (Recommendation A. When considering ARF in the setting of acute respiratory distress syndromeresults are uncertain, unless dealing with immunosupressed patients (Recommendation B. Positive results are also shown in weaning of mechanical ventilation (MV, particularly regarding acute exacerbation of COPD patients (Recommendation A. An improved quality of life in chronic respiratory failure and a longer survival in restrictive disorders has also been shown (Recommendation B while its benefit in stable COPD patients is still controversial (Recommendation C. NIV should be performed according to pre-established standards. A revision of NIV related complications is performed and the cost-benefit comparison with invasive MV is also considered.

  13. Meditation and Dance in Creative Society: Contemplative Consciousness in Daoism, Zen and Argentine Tango

    Directory of Open Access Journals (Sweden)

    Agnieška Juzefovič

    2015-07-01

    Full Text Available This paper deals with the particularly relevant topic in the contemporary society – Asian meditative practices and methods of self-development. The first chapter deals with the notion of contemplative, enlightened consciousness in Daoism and Zen. The second chapter shows how meditative consciousness could be achieved through social tango. Six theses are argued as appropriate for both Daoism and Zen as well as tango: 1 contemplative, purified consciousness is empty of disturbing thoughts and focused toward the essence; 2 contemplative, purified consciousness is not only empty but also brimming full; 3 contemplative, purified consciousness is identical with everyday mind; 4 contemplative mind is functioning according to the principles of non-action and naturalness; 5 meditation leads toward the unity and integrity of consciousness and body, consciousness and outside world; 6 active meditation is an effective way to obtain aims mentioned above. The argumentation of such thesis helps to show that tango is akin to various meditative practices. So it could not only be successfully used as a form of entertainment but also as a meditative practice, leading toward aims, similar to those of Zen meditations.

  14. Financing evaluation of the Pu spiking project in the Argentine nuclear power plants

    International Nuclear Information System (INIS)

    The present work pretends to evaluate the benefits that may be obtained from changing the natural uranium cycle that is presently used instead of that of Pu spiking which consists in changing a few elements with mixed oxides fuel with the plutonium reprocessed from all the fuel elements on the periphery of the reactor, maintaining the actual reactor's operating conditions. (Author)

  15. Dry storage of MTR spent fuel from the Argentine radioisotope production reactor RA-3

    International Nuclear Information System (INIS)

    The nuclear fuel elements of the RA-3 reactor consist in 19 rectangular fuel plates held in position by two lateral structural plates. The whole assembly is coupled to the lower nozzles that fits in the reactor core grid. The inner plates are 1.5 mm thick, 70.5 mm wide and 655 mm long and the outer plates are 100 mm longer. The fuel plates are formed by a core of an AI-U alloy co-laminated between two plates of Al. Enrichment is 90% 235U. After being extracted from the reactor, the fuel elements have been let to cool down in the reactor storage pool and finally moved to the storage facility. This facility is a grid of vertical underground channels connected by a piping system. The system is filled with processed and controlled water. At the present the storage capacity of the facility is near to be depleted and some indications of deterioration of the fuel elements has been detected. Due to the present status of the facility and the spent fuel stored there, a decision has been taken to proceed to modify the present underwater storage to dry storage. The project consist in: a) Decontamination and conditioning of the storage channels to prepare them for dry storage. b) Disassembly of the fuel elements in hot cells in order to can only the active fuel plates in an adequate tight canister. c) The remnant structural pieces will be treated as low level waste. (author). 10 figs

  16. Instrumentation and control engineering at ENACE (Argentine Nuclear Enterprise of Electric Power Plants S.A.)

    International Nuclear Information System (INIS)

    This paper describes the techniques used in the project of instrumentation and control for the Atucha II nuclear power plant, from the original flow diagram of the system whose instrumentation and control is requested to the functional binary diagrams and control loops, through measurement sheets and other documentation. An account of the organization and handling of this mass of information is given, using an electronic processing system of data file for the project. A brief description of the task implied in the completing and updating of these files defines the scheme in which all the documentation development associated with a given process is included. (Author)

  17. Consenso Argentino de Rehabilitación Respiratoria Argentine Consensus of Respiratory Rehabilitation

    Directory of Open Access Journals (Sweden)

    Martín Sivori

    2004-08-01

    Full Text Available Un grupo de neumonólogos y kinesiólogos asociados a la Asociación Argentina de Medicina Respiratoria se reunieron con el objetivo de revisar la evidencia científica en Rehabilitación Respiratoria (RR, elaborar recomendaciones basadas en la evidencia para su aplicación local y promover su uso. RR es un programa multidisciplinario para el cuidado de pacientes con una alteración respiratoria crónica, ajustado individualmente, con el objetivo de lograr el máximo de actividad física, social y la independencia funcional del paciente a través de la actividad física supervisada. La RR está particularmente indicada en pacientes con Enfermedad Pulmonar Obstructiva Crónica (EPOC que presenten intolerancia al esfuerzo. Se han definido los criterios de inclusión y exclusión, las mínimas pautas de evaluación y cómo realizar el control posterior a la RR. Se elaboraron normativas sobre los recursos para montar un programa. Se recomendó un programa ambulatorio hospitalario con complemento domiciliario, y al personal mínimo necesario (un neumonólogo y un kinesiólogo. Se recomendó para todos los pacientes el entrenamiento aeróbico de resistencia para miembros inferiores (MI (Evidencia A y de miembros superiores (MS (Evidencia B, de fuerza de MI y MS (Evidencia C, como así también para determinados pacientes el entrenamiento muscular respiratorio a carga resistiva umbral inspiratoria (Evidencia D, y otras técnicas kinésicas. Se hicieron recomendaciones sobre los objetivos educativos, apoyo nutricional y psicológico en todo programa de RR. El beneficio de la RR también fue analizado a través de la reducción de las exacerbaciones, hospitalizaciones y costos para el sistema de salud de los programas de RR. La RR es un componente fundamental del tratamiento de un paciente con EPOC. Este Consenso ha elaborado recomendaciones basadas en la evidencia científica para ser aplicada a nivel local.A group of pulmonologists and physical therapists from the Asociacion Argentina de Medicina Respiratoria revised the scientific literature on Respiratory Rehabilitation (RR to elaborate evidence-based national recommendations to promote its use. RR is a multidisciplinary program of care for patients with chronic respiratory impairment, individually tailored, designed to optimize physical and social performance and autonomy of patients. It is particularly indicated in patients with Chronic Obstructive Pulmonary Disease (COPD with exercise intolerance. Inclusion and exclusion criteria, guidelines for initial evaluation and follow up have been defined. The resources needed were defined. It was recommended a hospital ambulatory program with domiciliary complement. A pulmonologist and physical therapist were required for the program as minimum. Aerobic training was recommended for lower limb (LL (Evidence A and upper limb (UL (Evidence B, strength training for LL and UL (Evidence C, as well as respiratory muscles training by resistive inspiratory threshold load (Evidence D and other physiotherapy techniques were recommended for specific patients. In addition recommendations have been made for educational objectives of the program, nutritional and psychological support. The positive impact of RR on health care was analyzed through the reduction in exacerbation of COPD, length of hospital stay and cost. RR is a key component in the treatment of COPD patients. This evidenced-based consensus statement was prepared to provide recommendations to be implemented nationally.

  18. The construction of child malnutrition in Argentine print media during the 2001 crisis

    Directory of Open Access Journals (Sweden)

    Flavia Demonte

    2011-01-01

    Full Text Available En la Argentina de 2001, en diferentes ámbitos (político-técnicos, académicos, mediáticos se temía sobre el impacto que la situación de crisis podía tener en el estado nutricional de la población en situación de pobreza. Los medios de comunicación se erigieron como los actores protagónicos en el proceso de construcción del problema en ese contexto. En este artículo se analiza la construcción de la malnutrición infantil entre diciembre de 2001 y diciembre 2002, identificando las representaciones que sobre la misma organizaron el discurso de la prensa escrita en tanto actor representativo del espacio público. Metodológicamente, se utilizó un enfoque cualitativo y un tipo de investigación exploratoria-descriptiva. La técnica de recolección de la información fue la documental y el procesamiento y análisis se realizó bajo la metodología del análisis del discurso. Los principales resultados evidencian la persistencia de ciertas representaciones ligadas al problema, aun en contra de los datos epidemiológicos producidos durante el mismo período. Las representaciones identificadas, estructuradoras de las estrategias de intervención, dan cuenta de los sentidos que adquieren la alimentación, la enfermedad y el cuerpo enfermo, las medidas necesarias para "resolverla", el lugar de los actores en el espacio social y la interacción entre Estado y sociedad.

  19. La presse de la communauté espagnole dans l’Argentine péroniste

    Directory of Open Access Journals (Sweden)

    Laurent Bonardi

    2009-12-01

    Full Text Available Este artículo propone un análisis de las posiciones asumidas por los periódicos de la comunidad española de Argentina durante un periodo caracterizado por las estrechas relaciones hispano-argentinas que obstaculizan considerablemente las manifestaciones de oposición al régimen franquista en Argentina. El caso del periódico España Republicana, por su importancia, es objeto de un análisis particular.______________________ABSTRACT:This article proposes an analysis of the positions assumed by Spanish and Argentinian newspapers during a period characterized by the close relations between Spain and Argentina that have considerably prevented the development, in Argentina, of an opposition to the regime of Franco. The case of the newspaper España Republicana, due to its importance, is object of a particular analysis.

  20. History and the Popular: Rewriting National Origins at the Argentine Bicentenary

    Directory of Open Access Journals (Sweden)

    Catriona McAllister

    2016-04-01

    Full Text Available This article explores two texts that offer a self-conscious, metafictional rewriting of Argentina’s founding revolution in May 1810 at the time of the nation’s Bicentenary. It aims to draw out the political focus of both texts (a novel by Washington Cucurto and a play by Manuel Santos Iñurrieta by analysing the ways in which they draw on heavily politicized historical discourses in their fictional appropriations of this moment of origin. This analysis leads to the emergence of two very different ideas of the popular in both works, one closely related to Peronist discourse and the other entwined with the Marxist concept of the proletariat. This article therefore argues for the need to reconsider the definitions of the relationship between literature and history that emerge from postmodernist theory, definitions which centre on the epistemological relationship between ‘fiction’ and ‘fact’. Instead, it proposes a foregrounding of public discourses of history, often employed as political tools, in order to perceive a far more detailed engagement with the political in literary texts that rewrite history.This article is published under a CC-BY license https://creativecommons.org/licenses/by/3.0/