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  1. Tourism, Transnationality and Ethnolinguistic Vitality: The Welsh in the Chubut Province, Argentina

    Science.gov (United States)

    Johnson, Ian

    2010-01-01

    This article aims to develop the concept of ethnolinguistic vitality by adopting a qualitative approach to vitality rather than the statistical approach traditionally used. Ten small-size focus group style interviews were held with members of the Welsh-Argentinean community in the Chubut Province in the south of Argentina in order to explore…

  2. Geophysical characterization of circular structures in Chubut and Mendoza (Argentina): Impact vs. Volcanism

    Science.gov (United States)

    Prezzi, C.; Orgeira, M. J.; Risso, C.; Acevedo, R.; Ponce, F.; Nullo, F.; Martinez, O.; Rabassa, J.; Margonari, L.; Corbella, H.

    2013-05-01

    This work focuses on two main objectives. One of them is to provide information to discern the genesis of the circular structures present in Bajada del Diablo (Chubut, Argentina) considered as impact craters, and the other one is to contribute to a better knowledge of the circular structures located in the volcanic fields of Llancanelo and Payunia (Mendoza, Argentina). Chubut circular structures have been attributed to the collision of an extraterrestrial body, possibly an asteroid. However, doubts persist about their genesis because of the lack of direct geological evidences. Since detailed geomorphological studies have ruled out an origin by wind deflation, the prevailing alternative hypothesis attributes these circular structures to a volcanic process. On the other hand, the study of the volcanic fields of Payunia and Llancanelo (Mendoza) will contribute to the knowledge of the mechanics of hydromagmatic processes in the area, and the origin of circular structures morphologically similar to those located in Chubut. In the Payunia volcanic field at least 27 cones with evidences of hydromagmatism, in a field of more than 800 pure magmatic cones, have been recognized. This study tries to determine if a relationship between the observed volcanic circular structures and participation of water during the eruption exists. Magnetic and gravity field surveys of the circular volcanic structures in Llancanelo and Payunia volcanic fields were performed in order to determine their relationship with the type of eruption. Electromagnetic, magnetic and gravity field surveys were also carried out in Chubut circular structures. The comparative analysis of geological and geophysical results obtained in the circular structures of Chubut and those obtained in the circular structures in the volcanic areas of Llancanelo and Payunia suggest an impact origin for the circular structures of Chubut.

  3. Polen de las Mieles de la Patagonia Andina (Chubut-Argentina Pollen of honeys from the Andean Patagonia (Chubut-Argentina

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    Alicia Forcone

    2006-07-01

    Full Text Available Se describen e ilustran mediante fotomicrografías tomadas con MO y MEB, 30 tipos polínicos, determinados en las mieles producidas en la región andina de Chubut (Patagonia Argentina. Los tipos morfológicos descriptos pertenecen a las siguientes familias: Alstroemeriaceae, Apiaceae, Buddlejaceae, Caryophyllaceae, Caprifoliaceae, Celastraceae, Clusiaceae, Convolvulaceae, Ericaceae, Elaeocarpaceae, Fabaceae, Fagaceae, Lamiaceae, Papaveraceae, Polemoniaceae, Polygalaceae, Proteaceae, Ranunculaceae, Rosaceae, Saxifragaceae, Solanaceae, Thymelaceae y Verbenaceae. La mayoría de los tipos polínicos descriptos fueron hallados en las mieles como polen de menor importancia o traza con excepción de Aristotelia chilensis y Escallonia sp., que alcanzaron la categoría de polen dominante, y de Lomatia hirsuta, hallada como polen secundario.Thirty pollen types identified in the honeys from the Andean region of Chubut are described and illustrated by means of LM and SEM photomicrographs. Pollen types belong to the following families: Alstroemeriaceae, Apiaceae, Buddlejaceae, Caryophyllaceae, Caprifoliaceae, Celastraceae, Clusiaceae, Convolvulaceae, Ericaceae, Elaeocarpaceae, Fabaceae, Fagaceae, Lamiaceae, Papaveraceae, Polemoniaceae, Polygalaceae, Proteaceae, Ranunculaceae, Rosaceae, Saxifragaceae, Solanaceae, Thymelaceae, and Verbenaceae. Most pollen types described were found in the honeys as minor important pollen or traces, except Aristotelia chilensis, Escallonia sp., which reached the category of dominant pollen, and Lomatia hirsuta, which was found as secondary pollen.

  4. Mortalidad en la población galesa de Gaiman, provincia de Chubut, Argentina

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    Caratini, Alicia Liliana

    2005-01-01

    Full Text Available El objetivo de este trabajo es analizar la evolución en el tiempo de las defunciones y de las causas de muerte por edad y sexo de la población galesa de Gaiman, provincia de Chubut, Argentina. Los datos fueron obtenidos de las Actas de Defunción del Archivo del Registro Civil de la ciudad de Rawson, Chubut. El período de estudio se extendió de 1892 a 1961 y para su descripción y análisis se lo dividió en decenios. Se registraron 2103 defunciones de las cuales 1039 (49% correspondieron a galeses y sus descendientes, lo cual representa un promedio de 14.6 muertes por año. Se detectó una sobremortalidad masculina (59%, esperable en una población colonizadora con predominio de varones. Se observó un incremento, en el tiempo, de la edad media de defunción, lo que indica mejoras en las condiciones socioeconómicas y de salud de la población. La mortalidad infantil y los natimortos representaron el 20% y el 11%, respectivamente, de las defunciones y se constató una transición desde una mortalidad provocada por enfermedades de naturaleza exógena a otra de causalidad endógena. Al compararse nuestros datos con los de la provincia de Chubut y el país, se comprobó, en todos los casos, un descenso de la mortalidad en el tiempo, aunque en Gaiman esa disminución fue más significativa, probablemente por la atención que la comunidad le dedicaba a la educación y a la salud.

  5. Change in the meiofauna community structure of sandy beaches of the Nuevo Gulf (Chubut, Argentina

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    Carlos A. Harguinteguy

    2012-01-01

    Full Text Available The composition and distribution of the benthic meiofauna assemblages of the Nuevo Gulf (Chubut, Argentina are described in relation to abiotic variables. The meiofauna and sediment samples were collected in the intertidal zone of four sandy beaches with different anthropic disturbances in June 2005. The samples were obtained at 20 sampling sites using a 2.5 cm diameter core tube at a depth of 10 cm. A total of 13 meiofauna taxa were identified, with the meiofauna being primarily represented by nematodes, gastrotrichs, ciliates and polychaetes and the meiofauna abundances ranging from 1.5 × 10³ to 6.5 × 10³ ind. 10 cm‑2. Univariate (one-way ANOVA test and multivariate (ANOSIM/MDS test analyses showed clear dissimilarities in community structures between sites with anthropic effects and those in pristine condition, revealed by the significant differences were found between beaches near to and far way from a city with port activity. The meiofaunal assemblage varied in abundance and diversity, and these changes in the community structure may have been related to environmental gradients on the shore. The BIO‑ENV analysis showed that the redox potential discontinuity depth might be the main factor in the spatial distribution of organisms.

  6. Un primitivo Notonychopidae (Litopterna del Paleoceno inferior de Punta Peligro, Chubut, Argentina

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    Morales, J.

    1997-12-01

    Full Text Available The discovery of a new ungulate species, Requisia vidmari gen. nov., nov. sp. in the lower Paleocene of Punta Peligro, Chubut (Argentine represents the earliest known record of Litopterna. The dental morphology of this new genus is very similar to that known for Notonychops powelli Soria, 1989, differing mainly by its more primitive M3, which is less elongated and less selenodont. Requisia vidmari, together with Wainka tshotshe Simpson, 1948, can be included in the family Notonychopidae, which appear to represent an ancestral grade in the evolution of Litopterna. Because cladogenesis of South American ungulates clearly took place prior to the Punta Peligro fauna and was apparently rapid, phylogenetic interpretation is difficult.Se comunica un nuevo ungulado con dentición pre-selenodonta del Paleoceno inferior, Peligrense, de Patagonia, Argentina. Su morfología dentaria es muy similar a la de Notonychops powelli Soria, 1989, pero con caracteres más primitivos. La morfología de las cúspides, el tipo de desgaste y los caracteres crescentiformes del M3 indican que Requisia vidmari gen. nov., sp. nov. presenta fuertes evidencias del desarrollo de caracteres selenodontos, por lo que se lo considera como el más primitivo representante del orden Litopterna. Requisia vidmari y probablemente Wainka tshotshe Simpson, 1948, son primitivos en relación a Notonychops, pero su similitud morfológica justificaría su inclusión en la misma familia Notonychopidae. Se considera que la radiación adaptativa de los ungulados paleocenos de América del Sur fue precoz, eventualmente rápida, lo que dificulta encontrar un modelo filogenético suficientemente explicativo.

  7. Avulsion at a drift-dominated mesotidal estuary: The Chubut River outlet, Patagonia, Argentina

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    Isla, Federico; Espinosa, Marcela; Rubio, Belén; Escandell, Alejandra; Gerpe, Marcela; Miglioranza, Karina; Rey, Daniel; Vilas, Federico

    2015-10-01

    The Chubut River flows from the Andes to the Atlantic Ocean, and is interrupted by a single dam built at the middle valley. The lower valley is dominated by the aggradation of an alluvial plain induced by a complex of spits that enclosed the inlet in the last 5000 years. The river has reduced its flow because the blocking of the upper basin by terminal moraines during the Upper Pleistocene. At least the last two marine transgressions have flooded this estuary, and contributed to the aggradation during regressions. The area is of particular interest in regard to irrigation channels practiced since the XIX century. Today, the mean monthly flow is less than 10 m3/s although peaks of 95 m3/s have been recorded in Gaiman in July 2001. The dynamics of the estuary is dominated by waves (wave-dominated estuary) as tidal effects attenuate in less than 5 km. Three vibracores were collected within this floodplain: (a) at Gaiman, an area without any effect of the sea (35 km from the coast); (b) at Trelew, at the former avulsion plain of the river (18 km from the coast); and (c) at Playa Magagna, a saltmarsh located 0.4 km from the beach. At the Gaiman core (1.54 m long) fresh-water epiphytic diatoms dominate (Epithemia sorex, Cocconeis placentula, Ulnaria ulna) suggesting the aggradation of an alluvial plain. The Trelew core (2.19 m long) was collected from a deltaic plain. It was composed by fine sand with organic matter at the base that evolved into silty layers to the top. Several unconformities and laminae with heavy minerals were detected by their geochemical composition analysed by micro X-ray fluorescence (Itrax XRF core scanner). Fine-sand laminated layers were perfectly detected by their high content in S and Cl. On the other hand, mud layers presented lower content in Mg and Al with increments in Ca and V. The core from the marsh area (1.67 m long) was analysed in terms of the diatom evolution in order to detect Holocene sea-level and salinity effects. The sand flats

  8. Mineralogical data on angelaite, Cu2AgPbBiS4, from the Los Manantiales District, Chubut, Argentina

    DEFF Research Database (Denmark)

    Topa, D.; Paar, W.H.; Putz, H.;

    2010-01-01

    0.97Pb1.05Bi1.00S3.91. The ideal formula (on the basis of nine atoms) is Cu2AgPbBiS4, which requires Cu 16.31, Ag 13.84, Pb 26.58, Bi 26.81, S 16.45, total 100 wt.%. Angelaite is orthorhombic, with a 12.734(5), b 4.032(1), c 14.633(5) Å, V 751.8(5) Å3, space group Pnma and Z = 4. The calculated......Angelaite, ideally Cu2AgPbBiS4, occurs as a hypogene mineral in polymetallic ores at the Ángela groups of veins in the mining district of Los Manantiales, in the province of Chubut, Argentina. The new mineral species is predominantly associated with pyrite, sphalerite, chalcopyrite, hematite...

  9. Depositional Environments of Late Danian Plant Localities: Chubut Provice, Patagonia, Argentina

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    Comer, E.; Slingerland, R. L.; Wilf, P.

    2010-12-01

    Diverse, well-preserved macroflora are observed within Cretaceous and Paleocene sediments of Chubut Province, Patagonia, Argentina. These macroflora are the most well preserved early Paleocene flora from Gondwana and add new insight into the diversity and environments of that epoch. Two major sites of fossil preservation, Palacio de los Loros and Parque Provincial Ormachea, sit near the top of the Late Danian (65.5-61.7 Ma) Salamanca Formation. Understanding the depositional history of the Salamanca is important in characterizing paleoenvironments in which these flora lived and relating these Patagonian macroflora to concurrent Paleocene flora within the Gondwanan supercontinent. During a two week field season, twenty stratigraphic sections were measured along the outcrop belt at Palacio de los Loros and Ormachea Park as well as two minor sites; Las Flores, and Rancho Grande. Photo mosaics, laser ranger data, and stratigraphic columns were merged with elevated geologic maps and imported into Fledermaus to generate a 3-D visualization of facies relationships. Rock samples were also collected and will be thin sectioned and analyzed for petrography and grain size. The Salamanca Fm. consists of 7 facies, listed here in stratigraphically ascending order: 1)Transgressive sands, 2)Wispy-bedded claystone, 3)Banco Verde, 4)White Cross bedded sandstone, 5)Accretion set siltstone, 6)Transitional silty claystone and 7)Banco Negro. Based on these facies, the Salamanca Fm. is interpreted as a marine-shelf to brackish, tide-dominated, estuarine deposit. The base of the Salamanca Fm. rests on an unconformity representing a marine flooding surface and lower sections of the Salamanca, facies 1 and 2, contain abundant glauconite and fossils indicative of a marine shelf environment. These facies give way upwards to bi-directional trough cross bedded sandstones interspersed with flaser bedded sandy siltstones (facies 3 and 4) indicating a less marine estuary with strong flow regimes

  10. Colonization potential of the genus Ulva (Chlorophyta, Ulvales in Comodoro Rivadavia Harbor (Chubut, Argentina

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    2005-01-01

    Full Text Available Temporal and spatial changes in the coverage of five Ulva L. species (U. prolifera O.F. Müller, U. intestinalis L., U. hookeriana (Kützing Hayden et al., U. compressa L. and U. linza L. were analyzed on rocky substrata experimentally immersed in Comodoro Rivadavia Harbor (Argentina. Colonization was studied during an annual period at three levels: upper intertidal, middle intertidal and subtidal. Coverage was significantly higher in the middle intertidal and subtidal levels than in the upper intertidal level, where all species of Ulva were absent. Seasonal changes were also significant: coverage in summer and spring was significantly higher than in autumn and winter. Most species showed high spatial variability among replicates from the same level and season. Zonation patterns within the harbor differed from those observed in natural areas, probably due to low wave exposure and its interaction with herbivory and desiccation stress. Colonization patterns observed in this study indicate niche segregation in closely related species of the genus Ulva.

  11. A Tenebrionid beetle’s dataset (Coleoptera, Tenebrionidae from Peninsula Valdés (Chubut, Argentina

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    German Cheli

    2013-12-01

    Full Text Available The Natural Protected Area Peninsula Valdés, located in Northeastern Patagonia, is one of the largest conservation units of arid lands in Argentina. Although this area has been in the UNESCO World Heritage List since 1999, it has been continually exposed to sheep grazing and cattle farming for more than a century which have had a negative impact on the local environment. Our aim is to describe the first dataset of tenebrionid beetle species living in Peninsula Valdés and their relationship to sheep grazing. The dataset contains 118 records on 11 species and 198 adult individuals collected. Beetles were collected using pitfall traps in the two major environmental units of Peninsula Valdés, taking into account grazing intensities over a three year time frame from 2005–2007. The Data quality was enhanced following the best practices suggested in the literature during the digitalization and geo-referencing processes. Moreover, identification of specimens and current accurate spelling of scientific names were reviewed. Finally, post-validation processes using DarwinTest software were applied. Specimens have been deposited at Entomological Collection of the Centro Nacional Patagónico (CENPAT-CONICET. The dataset is part of the database of this collection and has been published on the internet through GBIF Integrated Publishing Toolkit (IPT (http://data.gbif.org/datasets/resource/14669/. Furthermore, it is the first dataset for tenebrionid beetles of arid Patagonia available in GBIF database, and it is the first one based on a previously designed and standardized sampling to assess the interaction between these beetles and grazing in the area. The main purposes of this dataset are to ensure accessibility to data associated with Tenebrionidae specimens from Peninsula Valdés (Chubut, Argentina, also to contribute to GBIF with primary data about Patagonian tenebrionids and finally, to promote the Entomological Collection of Centro Nacional Patag

  12. Plantas Medicinales en el Parque Nacional los alerces, Chubut, Patagonia Argentina

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    Carolina Toledo

    2012-12-01

    Full Text Available El objetivo de este estudio fue identificar las plantas con valor medicinal empleadas por los antiguos pobladores del Parque Nacional Los Alerces y relacionarlas con la riqueza específica de plantas medicinales presentes en el área. Se entrevistaron 16 pobladores asentados en la Reserva Nacional que tenían conocimiento de las plantas medicinales, más allá de que hicieran uso o no de las mismas. Las entrevistas fueron semiestructuradas, completadas de manera escrita e individual por el entrevistador. Las mismas incluían diez preguntas que recopilaban información respecto a las especies usadas como medicina, modo de preparación y aplicación, frecuencia de uso, localización de las plantas en el ámbito del área protegida, forma de obtención de las especies, y el modo de adquisición de los conocimientos respecto a las plantas. Los pobladores mencionaron el uso de 42 especies con valor medicinal, distribuidas en 24 familias, de las cuales las mejor representadas fueron Lamiaceae (21,4% y Asteraceae (14,2%. En cuanto al origen de las plantas medicinales citadas por los pobladores, el 58, 5% correspondió a especies exóticas. Los usos más frecuentes fueron para trastornos del sistema digestivo, seguido en orden decreciente y en menor proporción para tratar afecciones respiratorias, cardiovasculares y de la piel. Al comparar la riqueza total de especies medicinales presentes en el Parque y las registradas a partir de las entrevistas, se observa que se hace uso de un 28,6% de lo disponible en el área.Medicinal plants in The Alerces National Park, Chubut, Argentinean Patagonia. The aim of this study was to identify the medicinal plants used by the old residents in The Alerces National Park and to relate this information with medicinal species richness in the area. An interview was employed with 16 local people settled in the National Reserve who had knowledge of medicinal plants, past or not to make use of them. The interviews were semi

  13. Patrimonio arqueológico, memoria y territorio. Procesos de autoctonización entre los mapuches de Lago Puelo, Chubut (Patagonia, Argentina

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    Carolina Crespo

    2011-01-01

    Full Text Available Este artículo analiza las disputas de sentido que se configuran en torno de la categoría de "autoctonía" en la localidad de Lago Puelo -Comarca Andina del Paralelo 42º, noroeste de Chubut, Patagonia, Argentina-, su articulación con determinados derechos y demandas de la población mapuche y el lugar que ocupa el patrimonio arqueológico en el proceso de autoctonización de esta población dentro de procesos hegemónicos cambiantes. Tal forma de categorización resulta central en las modalidades de construcción de identidades políticas de los pueblos indígenas, de configuración de sus demandas y de las políticas estatales de reconocimiento de derechos hacia estos pueblos.

  14. Angelaíta en la paragénesis del distrito Los Manantiales, provincia del Chubut: Una nueva especie mineral Angelaite in the paragenesis of Los Manantiales district, Chubut, Argentina: a new mineral species

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    M.K. de Brodtkorb

    2004-12-01

    Full Text Available Angelaíta, Cu2AgPbBiS2 , una nueva especie mineral, fue localizada en la mina Ángela, mineralización de tipo IS del distrito Los Manantiales, Chubut, Argentina. La paragénesis incluye esfalerita, pirita, calcopirita, galena y en menor cantidad arsenopirita, betekhtinita, bornita, matildita, oro, plata, electrum, telurio, cervelleíta y hematita. La galena presenta numerosas inclusiones de angelaíta, aikinita, wittichenita y miharaíta. Esta paragénesis se presenta en vetas asociada a diferentes rocas volcánicas de la Formación Lonco Trapial de edad jurásica. La composición química de angelaíta fue obtenida con una microsonda electrónica. Se presenta en granos anhedrales de 10-100mm, es de color gris verdoso, moderadamente pleocroica y anisótropa.Angelaíte Cu2AgPbBiS2, a new mineral species, occurs in Mina Ángela, an IS type mineralization at the Los Manantiales district. The assemblage contains sphalerite, pyrite, chalcopyrite, galena with numerous inclusions of angelaíte, aikinite, miharaíte, and in smaller amounts arsenopyrite, betekhtinite, bornite, matildite, gold, silver, electrum, tellurium cervelleíte and hematite. Galena presents numerous inclusions of angelaíta, aikinita, wittichenita y miharaíta. This paragenesis occurs in veins associated with different volcanic rocks of the jurassic Lonco Trapial Formation. Angelaíte was observed as anhedral grains of 10-100mm, greenish grey in colour, moderately pleochroic and anisotropic.

  15. Parasites in rodent coprolites from the historical archaeological site Alero Mazquiarán, Chubut Province, Argentina

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    Norma Haydée Sardella

    2009-02-01

    Full Text Available The aim of this study was to examine the parasitic remains that were found in rodent coprolites collected from the archaeological site Alero Mazquiarán (Chubut Province, 45º44'15"S, 70°25'9"W, which is assigned to the interface of the Araucanian and Tehuelche cultures, dated at 212 ± 35 years B.P. The faecal material from two unidentified rodent species (X-10 and X-11 was collected from one human pelvic cavity found in a multiple burial. The faecal samples were processed and examined using paleoparasitological procedures. The X-10 coprolites were positive for eggs of Monoecocestus sp. (Cestoda: Anoplocephalidae and the X-11 faeces were positive for Pterygodermatites sp. (Nematoda: Rictulariidae, Trichosomoides sp. (Nematoda: Trichosomoididae and Monoecocestus sp. In this study, we discuss parasitic life cycles, the zoonotic importance of parasites and the behaviour of the aboriginal people.

  16. Parasites in rodent coprolites from the historical archaeological site Alero Mazquiarán, Chubut Province, Argentina.

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    Haydée Sardella, Norma; Horacio Fugassa, Martín

    2009-02-01

    The aim of this study was to examine the parasitic remains that were found in rodent coprolites collected from the archaeological site Alero Mazquiarán (Chubut Province, 45 degrees 44'15''S, 70 degrees 25'9''W), which is assigned to the interface of the Araucanian and Tehuelche cultures, dated at 212 +/- 35 years B.P. The faecal material from two unidentified rodent species (X-10 and X-11) was collected from one human pelvic cavity found in a multiple burial. The faecal samples were processed and examined using paleoparasitological procedures. The X-10 coprolites were positive for eggs of Monoecocestus sp. (Cestoda: Anoplocephalidae) and the X-11 faeces were positive for Pterygodermatites sp. (Nematoda: Rictulariidae), Trichosomoides sp. (Nematoda: Trichosomoididae) and Monoecocestus sp. In this study, we discuss parasitic life cycles, the zoonotic importance of parasites and the behaviour of the aboriginal people.

  17. Análisis de la diversidad biológica y mestizaje en la ciudad de Puerto Madryn (Prov. de Chubut, Argentina

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    Parolín, María Laura

    2013-12-01

    Full Text Available En el marco del estudio de la composición genética de las poblaciones cosmopolitas de Argentina, se analizó una muestra poblacional de la localidad de Puerto Madryn (PM con la finalidad de evaluar su diversidad biológica mediante la utilización de marcadores biparentales y uniparentales y comparar los resultados con los obtenidos previamente por nuestro equipo de investigación en seis poblaciones cosmopolitas de distintas regiones de la Argentina, aunque poniendo el énfasis en las correspondientes a la Región Patagónica.Las muestras biológicas fueron tomadas con consentimiento informado a 82 dadores de sangre no emparentados que concurrieron al Banco de Sangre y al Hospital Subzonal de dicha localidad, a quienes también se les realizó una encuesta genealógica. A partir de los datos proporcionados por los marcadores autosómicos, se registró una contribución europea de 67.2%, amerindia de 29.4% y africana de 3.4%. A un origen amerindio fueron adscriptos el 59.9% y 8.7% de los linajes maternos y paternos, respectivamente, revelando un desigual aporte autóctono por género.El aporte europeo se vio representado principalmente por el Hg H (19.5% y se detectaron sólo dos linajes subsaharianos.En PM las migraciones desde el centro del país han generado un fuerte impacto, reflejado en la mayor contribución de marcadores europeos respecto de dos muestras estudiadas previamente en Chubut (Comodoro Rivadavia y Esquel. Estas diferencias al interior de una misma provincia nos advierten que no puede abordarse el análisis de la constitución genética de las poblaciones sin dar cuenta de las particularidades regionales.

  18. Influencia de Especies Arbóreas Implantadas sobre Parámetros Biológicos y Bioquímicos en un Suelo Forestal de Chubut, Argentina Influence of Implanted tree Species on Biological and Biochemical Parameters in a Forest soil of Chubut, Argentina

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    Diana N Effron

    2012-01-01

    Full Text Available Se estudió la influencia de algunas especies forestales sobre propiedades biológicas y bioquímicas de un suelo, con el propósito de contribuir a establecer criterios que logren un desarrollo sustentable para un sistema forestal. El sitio de estudio es un suelo forestal de Chubut, en la Patagonia Argentina. Se tomaron muestras superficiales de suelo de tres parcelas con una especie dominante cada una: Roble (Quercus robur, Fresno (Fraxinus excelsior L. y Pino radiata (Pinus radiata D. Don.. En ellas se determinaron carbono de respiración, actividad deshidrogenasa, actividad fosfatasa ácida, número de bacterias totales y amilolíticas, actinomicetes y hongos totales, mientras que en las hojas se determinó fósforo. Los resultados mostraron diferencias importantes de estos parámetros para las diferentes especies estudiadas, diferencias que son explicadas por la composición química de las diferentes especies vegetales.The influence of some tree species on biological and biochemical properties of a forest soil was studied with the purpose of establishing criteria to achieve a sustainable development of a forest system. The study site is a forest soil of Chubut, in the Argentinean Patagonia. Surface soil samples were taken of three plots with a dominant species each one: Oak (Quercus robur, Ash (Fraxinus excelsior L. and Radiata Pine (Pinus radiata D. Don.. Microbial respiration, dehydrogenase and acid phosphatase activities, counts of aerobic and amylolytic bacteria, actinomyces and fungi were determined in soil samples, while phosphorous was determines in leaves. The results showed important differences of these parameters for the different species considered in the study, differences that are explained by the different chemical composition of the vegetal species.

  19. Determination of Quality Chemical Parameters of Honey from Chubut (Argentinean Patagonia Determinación de Parámetros Químicos de Calidad de las Mieles de Chubut (Patagonia Argentina

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    Pia Valeria Aloisi

    2010-12-01

    Full Text Available This study was intended to evaluate the quality chemical parameters of 62 Apis mellifera L. honey samples, from the Province of Chubut, Argentine. Samples were obtained from the three melliferous areas of this province: Andean region, lower Chubut River valley and plains of Senguerr River. The average values obtained for electrical conductivity (0.33 mS cm-1 and pH (4.17 indicate that the analyzed honeys came mainly from nectar. Electrical conductivity was higher in honeys from the Andean region than in honeys from the other two regions. Moisture (water content was low, with an average value of 14.67%. The hydroxymethylfurfural (HMF content was very low and ranged between 0.0 and 14.70 mg kg-1. Moisture, HMF and free acidity values show good maturity and absence of undesirable fermentation in all the samples. Diastase activity had a mean value of 13.50 units on the Gothe scale. Color parameter presented variations between honeys from different areas. The analytical values for the samples from the Andean region, the lower Chubut River valley and the plains of the Senguerr River respectively were: 67.73, 40.33 and 23.26 mm Pfund. Results obtained in this study, indicate that honeys produced in Chubut present excellent quality properties according to international standards.Este estudio se realizó para evaluar los parámetros químicos de calidad de 62 muestras de mieles de Apis mellifera L., provenientes de la Provincia de Chubut. Las muestras de mieles se obtuvieron de las tres regiones melíferas de esta provincia: la Región Andina, el valle inferior del Río Chubut y la llanura del Río Senguerr. Los valores promedio obtenidos para conductividad eléctrica (0,33 mS cm-1 y pH (4,17 indican que las mieles fueron principalmente de néctar. Los valores de conductividad eléctrica fueron mayores en las mieles de la Región Andina que en las mieles de las otras regiones. La humedad (contenido de agua fue baja, con un valor medio de 14,67%. El

  20. Composición corporal de escolares pertenecientes a diferentes contextos socioeconómicos de Puerto Madryn, Chubut, Argentina

    Directory of Open Access Journals (Sweden)

    Dahinten, Silvia Lucrecia

    2007-01-01

    Full Text Available El desigual desarrollo del tejido muscular y de la distribución de tejido adiposo que tiene lugar durante el crecimiento humano presenta dimorfismo sexual (DS, en condiciones de vida saludables. Esta variación ha sido traducida en algoritmos utilizando la circunferencia y pliegues subcutáneos del brazo y se han elaborado ecuaciones para calcular áreas. El objetivo fue evaluar el DS observado en el crecimiento corporal de escolares de 6 a 14 años de hogares con diferente NBI -(NBI alto y (NBI bajo-. Se estudió transversalmente una muestra de 500 mujeres y 570 varones de la ciudad de Puerto Madryn, Chubut. Se relevaron: perímetro braquial y pliegues subcutáneos tricipital y subescapular y se calcularon las áreas adiposa (AAB y muscular (AMB. Se utilizaron pruebas de Wilcoxon, p= 0.05. El AAB de las mujeres fue a casi todas las edades superior a la de los varones (NBI bajo p=0.09; NBI alto p=0.02. A edades tempranas, el AMB mostró que los varones presentaron cifras similares a las mujeres. A partir de los 12 años, sin embargo, los varones comenzaron a incrementar la masa muscular. En las niñas este aumento se hizo mucho más lento (NBI alto p=0.01; NBI bajo p=0.03. La ausencia de DS en el NBI bajo, para los caracteres considerados, se relaciona con el aumento de tejido adiposo en los varones de este sector que muestra la adopción dentro de la comunidad, de dietas de alto contenido en grasas y carbohidratos acompañadas de altas tasas de obesidad.

  1. Circulación, intercambio y uso de obsidianas en la costa de la provincia del Chubut (Patagonia argentina, durante el Holoceno tardío

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    Julieta Gómez Otero

    2005-12-01

    Full Text Available Se presentan los resultados de un nuevo análisis de elementos traza en 26 artefactos de 19 sitios arqueológicos de la costa de la provincia del Chubut. Dieciocho sitios son del sector norte, entre las desembocaduras del Arroyo Verde y del río Chubut y el último está situado al sur, en Cabo Dos Bahías. Seis diferentes tipos de obsidiana fueron identificados; tres de ellos de fuentes conocidas: los tipos T/SCI de la fuente de Telsen y SI de la fuente Sacanana, ambas del centro-norte de la provincia del Chubut y el tipo PDAI de la fuente de Pampa del Asador, en la provincia de Santa Cruz. Los tipos de fuente desconocida son: CC? anteriormente determinado en un sitio arqueológico de Cerro Castillo, margen suroeste de la Meseta de Somuncurá; el tipo T/SCII, en principio considerado como subtipo de la fuente de Telsen, pero según estos nuevos análisis pertenece a una fuente distinta; y un tipo nuevo, MSI, cuya fuente estaría en la Meseta de Somuncurá. La información aquí presentada indica que los seis diferentes tipos de obsidiana llegaron a la costa central de Patagonia desde centros de aprovisionamiento independientes y desde distancias variables entre 100 km y 800 km.The results of analyses of trace-elements in twenty-six samples of obsidian from 19 archaeological sites along the Atlantic coast, between Golfo San Matías Oeste (41°55´58.8´´S and Cabo Dos Bahías (44°54´77.9´´S are presented as a contribution to studies of sources and distribution of obsidian in archaeological sites in central Patagonia, specifically the province of Chubut, Argentina. Six different types of obsidian occur in this collection, three of which come from known obsidian sources. Four of the samples are chemically similar to obsidian type T/SCI, which is derived from near Sierra Negra (42°21'S - 66°36´W, northeast of the town of Telsen, and is located between 100 and 235 km linear distance west of the sites along the coast in which this obsidian

  2. Análisis de la diversidad biológica y mestizaje en la ciudad de Puerto Madryn (Prov. de Chubut, Argentina)

    OpenAIRE

    Parolín, María Laura; Avena, Sergio Alejandro; Fleischer, Silvina; Pretell, Mariana; Di Fabio Rocca, Francisco; Rodríguez, Debora A.; Dejean, Cristina Beatriz; Postillone, María Bárbara; Dahinten, Silvia Lucrecia; Manera, Guillermo; Carnese, Francisco R.; Vaccaro, María S.

    2013-01-01

    En el marco del estudio de la composición genética de las poblaciones cosmopolitas de Argentina, se analizó una muestra poblacional de la localidad de Puerto Madryn (PM) con la finalidad de evaluar su diversidad biológica mediante la utilización de marcadores biparentales y uniparentales y comparar los resultados con los obtenidos previamente por nuestro equipo de investigación en seis poblaciones cosmopolitas de distintas regiones de la Argentina, aunque poniendo el énfasis en las correspond...

  3. "Zafar," So Good: Middle-Class Students, School Habitus and Secondary Schooling in the City of Buenos Aires (Argentina)

    Science.gov (United States)

    Meo, Analia Ines

    2011-01-01

    This article examines how students from the "loser" sections of the middle class dealt with the game of secondary schooling in a "good" state school in the city of Buenos Aires (Argentina). It engages with Bourdieu's theory of social practice and, in particular, with its concepts of game, habitus and cultural capital. It argues that middle-class…

  4. Argentina

    International Nuclear Information System (INIS)

    The history of Argentina nuclear development can be summarized into two periods: 'splendour' and 'stand-by'. The former starting in the decade of the 1950s until the late 1970s while the latter period goes from the late 1970s to 2006. The first period (1950-1980) was characterized by a national policy of scientific and technological development; State intervention in the area of industrial production. The military aspects, if any, were marginal in the context of the overall development. During this period, important public scientific technological projects were carried out: the production and sale of experimental reactors, nuclear plants (Atucha I and Embalse), and some projects aimed to developing national industry. The stimulus experienced in the country in this period accompanied the role of nuclear technology worldwide due to the Cold War and the persuasion factor among the main powers. However, during the 1970s and 1980s the whole world started questioning these technologies which ran parallel to the liberalization of the countries economies. The second period (1980s onwards) was characterized by many economic problems and the consequent transitory stop of national nuclear projects; e.g. Argentina transitory stopped its third nuclear plant (at present under construction). At that moment, neoliberal politics were aimed at reducing the role of the State and promoting privatization, separating nuclear projects from governmental control, trying to privatize the nuclear plants, and cutting scientific budgets. Argentina has two nuclear power plants in operation providing 8.6% of the total country's electricity. A third one, 692 MW(e) power reactor PHWR Atucha-2 construction was stopped in the 1990s and re-started in 2007 it is expected to be in commercial operation by 2011). Argentina nuclear power plants utility, NA S.A. is preparing the refurbishment of its CANDU-6 reactor. Argentina Atomic Energy Commission (CNEA) has a prototype of its CAREM nuclear power plant

  5. Maternal immunization in Argentina: A storyline from the prospective of a middle income country.

    Science.gov (United States)

    Vizzotti, C; Neyro, S; Katz, N; Juárez, M V; Perez Carrega, M E; Aquino, A; Kaski Fullone, F

    2015-11-25

    The importance of vaccination during pregnancy lies not only in directly protecting vaccinated women, but also by indirectly protecting small infants during the first few months of life. Vaccination against the flu and whooping cough is a priority within the comprehensive care strategy for pregnant women and small infants in Argentina, in the context of transitioning from child vaccination to family vaccination. In 2011, the flu vaccine was included in the National Immunization Schedule (NIS) as mandatory and free of charge, with the aim of decreasing complications and death due to influenza in the at-risk population in Argentina. The national vaccination coverage attained in pregnant women in the past 4 years (2011-2014) has been satisfactory; 88% coverage was attained in the year this program was introduced to the schedule. In the following years, coverage was maintained at greater than 95%. In February 2012, Argentina became the first country in Latin America to have universal vaccination strategy for pregnant women against whooping cough. This recommendation was implemented throughout the country by vaccination with the diphtheria toxoid, tetanus toxoid, and acellular pertussis (Tdap) vaccine starting at 20 weeks of pregnancy, with the aim of decreasing morbimortality due to whooping cough in infants under 6 months of age. The vaccine was incorporated into the NIS in 2014. More than 1,200,000 doses were applied in this period. Both vaccines showed a suitable safety profile and no serious events were reported. Argentina is an example of a middle-income country that has been able to implement a successful strategy for primary prevention through vaccines, making it a health policy.

  6. Argentina

    Energy Technology Data Exchange (ETDEWEB)

    1999-09-01

    This report presents a brief overview of the socio-economic, energy and environmental context in which climate change mitigation actions in Argentina shall be inserted. To that end, the dynamic of the Argentine economic development, its influence on the energy system and environmental impacts is summarised. From the environmental standpoint, emphasis shall only be made on the impact of economic development patterns and energy policies on GHG emission. (au) 73 refs.

  7. Diversity of cingulate xenarthrans in the middle-late Eocene of Northwestern Argentina

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    Martín R. Ciancio

    2016-08-01

    Full Text Available The study of Paleogene mammals of intermediate and low latitudes has increased in the last decades and has been clearly demonstrated their importance in the comprehension of the evolution and faunistic changes outside Patagonia. The study of these faunas permits establishing new comparisons among contemporaneous faunistic associations, completing the distributional patterns, and evaluating evolutionary changes in the lineages in relation to climatic conditions prevailing in each of the different regions. In this work we study the diversity of Dasypodidae recovered from the Geste Formation (Northwestern Argentina. Bearing levels of Geste Formation were referred alternatively to a Barrancan subage of Casamayoran SALMA (middle Eocene, Lutetian–Bartonian or a Mustersan SALMA (middle–late Eocene, Bartonian–Priabonian on faunistic comparations with their equivalent in Patagonia, although absolute isotopic data indicates ca. 37–35 Ma (late Eocene, Priabonian. We described the following taxa of Dasypodidae: (i Dasypodinae Astegotheriini: cf. Astegotherium sp., ?Prostegotherium sp., Parastegosimpsonia cf. P. peruana; (ii Dasypodinae indet.; (iii Euphractinae Euphractini: Parutaetus punaensis sp. nov.; (iv Dasypodidae incertae sedis: Pucatherium parvum, Punatherium catamarcensis gen. et sp. nov. In comparison with other beds bearing Eocene cingulate faunas from Northwestern Argentina, Geste Formation presents the greatest diversity of dasypodids. This association is consistent with a late Eocene age and shows a taxonomic and biogeographic relevant features given by a unique specific composition: (i it differs from that known for contemporaneous faunas from Southern latitudes and younger associations from more tropical areas; (ii it includes genera with close affinities to those distant areas; (iii it presents unique taxa typical from Eocene units exposed at Northwestern Argentina. This highlights the evolutionary and biogeographic meaning of the

  8. Argentina.

    Science.gov (United States)

    1993-02-01

    Background notes on Argentina provide a profile of the geography, selected demographic features, government and economic conditions. Descriptive text includes a discussion of the people, their history and political conditions, the government and officials, the state of the economy, their defense, foreign relations, and relations with the US. The 1992 estimated population was about 33 million of whom 97% are European (mostly Spanish and Italian). Religions represented are Roman Catholic (92%), Protestant (2%), Jewish (2%), and other (4%). Adult literacy is 95%. 36% are engaged in industry and commerce, 20% in services, 19% in agriculture, 6% in transport and communications, and 19% other. Per capita gross domestic product was $4,500. There are only 50,000 native Indians remaining in peripheral provinces. The population enjoys a high standard of living and a low growth rate. The country was shaped by dominant forces: modern agricultural techniques and the integration of the country into the world economy. Foreign investment aided the economic revolution. Conservative and radical rule has swung the country back and forth politically since 1916. Colonel Juan Domingo Peron led a successful military coup in 1943 and was elected in 1946. Policies were instituted to give a greater voice to the working class, and with the influences of his wife, women's groups. In 1955, he was ousted by the military, which failed to revive the economy and quiet increasing terrorism. After a number of difficult elections, Peron was reinstated as president in 1973. Extremists on the left and right threatened public order; the military as a consequence imprisoned persons indefinitely. Peron's wife succeeded him after his death, but was removed from office in the military coup of 1976. Basic human rights were violated during this period. By 1983, a fair election was held and support increased for a democratic system. In 1989, Carlos Saul Menem, a Peronist candidate, won and established

  9. Argentina

    Directory of Open Access Journals (Sweden)

    Hernan Galperin

    2004-01-01

    Full Text Available En este trabajo se analizan las bases sobre las que se está desarrollando el proceso de transición hacia la TV digital en Brasil y Argentina, y se discuten las posibilidades que la transición presenta para replantear la estructura de mercado y el modelo de regulación de la TV abierta en los países del Mercosur. La principal hipótesis es que la TV digital abre una oportunidad única para reformar el actual modelo de radiodifusión basado en la concesión de un número reducido de licencias a operadores de tipo generalista. Al multiplicar la capacidad de transmisión y facilitar el desarrollo de servicios interactivos tanto de entretenimiento como educativos y de información, la transición a la TV digital se ofrece como instrumento de política pública para alcanzar objetivos clave en materia de comunicación, como el pluralismo, la apertura del mercado y el achicamiento de la llamada brecha digital.

  10. Argentina

    Directory of Open Access Journals (Sweden)

    G. Benedetti

    2007-01-01

    Full Text Available El presente trabajo tiene como objetivo realizar un diagnóstico ambiental de un sector de la ciudad de Bahía Blanca, Argentina basado en el arbolado urbano de alineación. El arbolado constituye un componente fundamental de los paisajes artifi ciales ya que contribuye al aumento del confort y al mejoramiento de la calidad del medio. En este sentido, actúa como un factor moderador de las condiciones climáticas, la contaminación y la salud de la población. El municipio de la ciudad de Bahía Blanca tiene como proyecto la realización de inventarios del arbolado en los distintos barrios, para lograr optimizar la relación entre la cantidad de ejemplares arbóreos y la densidad poblacional. Es importante considerar la variedad de ejemplares en función del uso del suelo y de las características ambientales de cada sector. Por lo tanto, este trabajo presenta un diseño metodológico para la elaboración del plano verde de la ciudad.

  11. Programa provincial de lectura del Chubut

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    Natalia Alejandra Alaniz

    2014-10-01

    Full Text Available En el marco del proyecto “Dispositivos pedagógicos en las dinámicas de lavida escolar en contexto de pobreza urbana” lo que se propuso investigar es la forma de implementación del Programa de Lectura de la provincia de Chubut. El mismo fue creado por Resolución Ministerial N° 1044/ 08, a partir de diversos trabajos que comenzaron en el año 2003 a través de la Ley de Educación 26. 026, y que posteriormente se incorporaron a nivel provincial mediante la Resolución N ° 174/12 para revalorizar las trayectorias escolares de cada niño/a. El programa consiste en poner el énfasis en el vínculo pedagógico mediante la adecuación de los espacios curriculares, de tal modo que se pueda lograr una articulación entre los diferentes niveles educativos, desde el nivel inicial al secundario. Articulando para ello recursos materiales y humanos que posibiliten el acompañamiento del proceso de enseñanza y aprendizaje de lectura.A partir de esto, el objetivo de este trabajo fue indagar cómo perciben los docentes de una escuela pública la implementación del Programa Provincial de Lectura, lo que implico utilizar metodologías y técnicas de investigación apropiadas para obtener las experiencias actuales en el territorio y en la cotidianidad de los propios actores escolares. Teniendo en consideración que el dispositivo pedagógico es una construcción histórica, que produce subjetividades, y por consiguiente formas de ver y entender el mundo.

  12. Gill parasites of Prochilodus lineatus (Valenciennes, 1836) (Pisces; Curimatidae; Prochilodontinae) in the Middle Paraná System (Argentina).

    Science.gov (United States)

    Chemes, Silvina Beatriz; Gervasoni, Silvia Hebe

    2013-01-01

    We studied gill parasites of Prochilodus lineatus in the San Javier River, which is connected to the Middle Paraná System (Santa Fe, Argentina). In 25 specimens, the parasite prevalence in branchial organs was 92% and the average intensity was 8.3 parasites/infested fish. The parasite community showed no dominance of any taxon, but the family Dactylogyridae represented 60% of the community. We found a significant association between Tereancistrum curimba and Dactylogyridae specimens. The prevalence of the parasites T. toksonum and T. curimba was higher than what has been recorded in the floodplain of the Upper Paraná River, Brazil, demonstrating that the geographic distribution of parasites belonging to Tereancistrum genus is thus expandeing. PMID:24473894

  13. Movilidad Espacial, Ocupación y Empleo en el Valle Inferior del Río Chubut Spatial mobility, Occupation and Employment in the Inferior Valley of the River Chubut

    Directory of Open Access Journals (Sweden)

    M. Marcela Crovetto

    2011-12-01

    Full Text Available Desde una perspectiva que propone una serie de críticas a la tipología dicotómica de clasificación demográfica del espacio habitado, rural y urbano, se ha indagado sobre las formas que adquiere la movilidad espacial cotidiana en relación al empleo y a la ocupación en el Valle Inferior del Río Chubut -patagonia argentina-, atendiendo a una situación especial de movilidad espacial cotidiana como es la referida a la producción de cerezas en el Valle. Se utilizaron fuentes secundarias estadísticas, históricas y documentales en articulación con la construcción de datos primarios mediante relevamientos operados por distintas técnicas. Fundamentalmente se aplicó una encuesta a hogares (200 casos de barrios periféricos de las localidades involucradas en el Valle Inferior del Río Chubut El centro del ejercicio de la investigación estuvo en contraponer los resultados de una encuesta realizada en campo de acuerdo tanto a la clasificación clásica de la zona de residencia (rural o urbana como a una propuesta alternativa para la investigación. Así se evaluaron los matices escondidos dentro de las homogeneizantes ideas de rural y urbano, sintetizadas por la cantidad de habitantes -en Argentina con 2000 o más se considera un espacio urbano, con menos un espacio rural- observándose, especialmente, que muchas trayectorias cotidianas de actores sociales considerados clásicamente urbanos se acercaban mucho a las de los actores de las zonas rurales.From a perspective that proposes a number of criticisms of the dichotomous typology of demographic classification of living space, rural and urban, has inquired about the forms that everyday spatial mobility in relation to employment in the Valle Inferior del Río Chubut - Patagonia-Argentina, following a special situation of everyday spatial mobility as that concerning the production of cherries in the Valley. Were used statistics, historical and documentary in coordination with the construction

  14. Jurassic Paleoclimates in Argentina, a review

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    Wolfgang Volkheimer

    2008-12-01

    Full Text Available New paleoclimatic evidence from palynologic and vertebrate proxies provides more detailed data on climatic change during the Jurassic in Argentina. Comparison with paleomagnetic data shows that the Neuquén basin shifted from the highest paleolatitudes (50ºS, by the end of the Triassic until the end of the Sinemurian. During the Pliensbachian-Toarcian it moved northward, reaching the lowermost paleolatitudes (25ºS, and subsequently (Middle to Late Jurassic the area moved again and attained eventually a position similar to its present-day position (30ºS. These movements are reflected in the Jurassic palynofloras. The high frequency of the pollen genus Classopollis (Cheirolepidiacean gymnosperms is of special paleoclimatic importance in the Argentinian Jurassic, as it is indicative of seasonal aridity or semiarid conditions during large intervals of this Period. During the shift of the South American continent to the northernmost position, the arrival of an important group of Araucariaceae, represented by Callialasporites spp., in the Toarcian could indicate an amelioration related to more humid conditions. Jurassic dinocyst assemblages studied in the Neuquén basin have proved to be useful paleoclimatic and paleobiogeographic proxies. Abundant remains of marine crocodiles in the Mid- and Late Jurassic of the Neuquén basin indicate warm water temperatures for this basin, probably in excess of 20° C. The occurrence of abundant turtles and other ectothermic vertebrates in the Middle Jurassic Cañadón Asfalto Formation of Chubut is in general accordance with the warm climate indicated for this unit by geologic evidence.

  15. Nueva edad de la base del grupo Chubut en la mena uranífera Cerro Solo, provincia del Chubut

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    Nilda Marveggio

    2013-09-01

    Full Text Available En este trabajo se analizan las características litológicas de la roca hospedante de la mineralización de uranio del yacimiento Cerro Solo, que corresponde al miembro inferior de la Formación Los Adobes, unidad basal del Grupo Chubut en su sector norte. Se analiza la asociación de polen angiospérmico de allí recuperada, y en base a ese análisis, se establece una edad albiana temprana para la asociación polínica, que determina una edad más joven que la considerada hasta el momento para el inicio de la depositación de las sedimentitas del Grupo Chubut en el depocentro del yacimiento Cerro Solo.

  16. Geochemistry of a Tidal Transgressive Heterolithic Succession:The Ituzaingo Formation (Middle Miocene),Argentina

    Institute of Scientific and Technical Information of China (English)

    POBERTOTORRA

    2000-01-01

    Geochemical analysis by means of XRF and ICP-AES was carried out on 35 selected saples,Major and trace elements were determined.They were:CaCO3,P2O5,Fe2Oe,TiO2,SiO2,Al2O3,CaO,K2O,MnO,Rb,Cs,Ga,Zr,Ta,Nb,Sr,Ba,Cr,Ni,Zn,Pb,Cu,V and B.The country rocks studied were of sandy-muddy lithofacies.belonging to a typical tide marine transgressive heterolithic succession of Middle Miocee age.They are called the Ituzatingo Formation.The formation outcrops in northeastern Argentina on the left of the Parana River Valley.The depositional setting largely depends on the outstanding internal structures and textures(i.e.,herringbone cross stratification,tidal bindles,reactivation surfaces).In the study area.loessial friable sediment was used as geochemical background because it overlies shallow marine sediments.The results show significant differences.Boron is absent in loessial sediments.On the other hand .several trace elements such as vanadium and chromium are concentrated in the shallow marine sediments.These results may be useful to discernuncertain beds in the area studied.

  17. Comparative cytogenetic studies of Curimatidae (Pisces, Characiformes) from the middle Paraná River (Argentina).

    Science.gov (United States)

    Brassesco, M S; Pastori, M C; Roncati, H A; Fenocchio, A S

    2004-01-01

    Almost all species of the Curimatidae family have a stable karyotype, with a diploid number of 54 metacentric (M) and submetacentric (SM) chromosomes, and one sole nucleolus organizer pair. This family has considerable specific diversity in Argentinean fluvial basins; however, no cytogenetic data are available. Eight species from the Paraná River (Argentina): Cyphocharax voga, C. spilotus, C. platanus, Steindachnerina brevipinna, S. conspersa, Curimatella dorsalis, Psectrogaster curviventris, and Potamorhina squamoralevis were analyzed cytogenetically. Chromosome preparations were obtained from direct samples and through cell culture, and they were processed for conventional, C- and nucleolar organizer region-banding. Six of the species exhibited the standard family karyotype, with 2n = 54 M-SM and fundamental number of chromosomes (FN) = 108, as well as variations in the chromosome formula, and in heterochromatic and nucleolar organizer regions. Though nucleolar organizer regions were located on only one chromosome pair, they varied in both carrier chromosomes and pairs involved. On the other hand, C. platanus showed a complement of 2n = 58 M-SM and subtelocentric with FN = 116, and P. squamoralevis presented 2n = 102, with some M-SM and a large number of acrocentric chromosomes. Even though the karyotype macrostructure appears to be conserved, the speciation process within the family has been accompanied by micro-structural rearrangements, as evidenced by pattern diversity in the heterochromatin and nucleolar organizer regions. Some changes in chromosome macrostructure have also occurred in this group, primarily in C. platanus and P. squamoralevis, in which there have been centric dissociations and inversions. PMID:15266401

  18. Using dental enamel wrinkling to define sauropod tooth morphotypes from the Cañadón Asfalto Formation, Patagonia, Argentina.

    Science.gov (United States)

    Holwerda, Femke M; Pol, Diego; Rauhut, Oliver W M

    2015-01-01

    The early Middle Jurassic is regarded as the period when sauropods diversified and became major components of the terrestrial ecosystems. Not many sites yield sauropod material of this time; however, both cranial and postcranial material of eusauropods have been found in the Cañadón Asfalto Formation (latest Early Jurassic-early Middle Jurassic) in Central Patagonia (Argentina), which may help to shed light on the early evolution of eusauropods. These eusauropod remains include teeth associated with cranial and mandibular material as well as isolated teeth found at different localities. In this study, an assemblage of sauropod teeth from the Cañadón Asfalto Formation found in four different localities in the area of Cerro Condor (Chubut, Argentina) is used as a mean of assessing sauropod species diversity at these sites. By using dental enamel wrinkling, primarily based on the shape and orientation of grooves and crests of this wrinkling, we define and describe three different morphotypes. With the exception of one taxon, for which no cranial material is currently known, these morphotypes match the local eusauropod diversity as assessed based on postcranial material. Morphotype I is tentatively assigned to Patagosaurus, whereas morphotypes II and III correspond to new taxa, which are also distinguished by associated postcranial material. This study thus shows that enamel wrinkling can be used as a tool in assessing sauropod diversity.

  19. Corrales de piedra, campos abiertos y pampas de camaruco: Memorias de relacionalidad en la meseta central de Chubut Stone yards, open fields and sacred places: Memories of relatedness in the Chubut´s central plateau

    Directory of Open Access Journals (Sweden)

    Ana Ramos

    2008-12-01

    Full Text Available La "cuestión indígena" como política de estado en Argentina ha estado acompañada por la elaboración académica de mapas étnicos. Las definiciones hegemónicas de estas entidades han presupuesto generalmente algún elemento "esencial" como, por ejemplo, fenotipos, uso de una lengua, o la aglutinación en torno a linajes consanguíneos. A partir de las reformulaciones de las teorías del parentesco desde el modelo heurístico de las sociedades de casas y las teorías sobre la relacionalidad proponemos una aproximación a la memoria social como marco alternativo de interpretación histórica. Esta contempla las prácticas sociales del parentesco y la objetivación de la continuidad de los grupos de pertenencia en las políticas y lugares de la memoria -corrales de piedra, actividades productivas y pampas de camaruco- en la región de la "meseta" de Chubut. Dichas relaciones con el espacio físico cuestionan tanto las definiciones académicas tradicionales de parentesco y de cacicazgo como las clasificaciones étnicas-nacionales.The "Indigenous issue" as a state policy in Argentina has been accompanied by an academic production of ethnic maps. Hegemonic definitions of these entities used to presume some "essential" elements like the phenotype, the use of language or consanguineous lineage membership. Based on the reformulation of kinship theory, which came from the heuristic model of houses and relatedness theory, we propose an approach to social memory as an alternative framework for historical interpretation. This includes kinship social practices as well as the materialization of group membership's continuity in policies and places of memory -such as stone yards, productive activities, open fields and sacred places- in the Chubut central plateau. Finally, we argue that regarding a physical space, these relations question not only the ethnic-national classifications but also the traditional academic definitions of kinship and chieftaincy.

  20. Angelaíta en la paragénesis del distrito Los Manantiales, provincia del Chubut: Una nueva especie mineral

    Directory of Open Access Journals (Sweden)

    M.K. de Brodtkorb

    2004-12-01

    Full Text Available Angelaíta, Cu2AgPbBiS2 , una nueva especie mineral, fue localizada en la mina Ángela, mineralización de tipo IS del distrito Los Manantiales, Chubut, Argentina. La paragénesis incluye esfalerita, pirita, calcopirita, galena y en menor cantidad arsenopirita, betekhtinita, bornita, matildita, oro, plata, electrum, telurio, cervelleíta y hematita. La galena presenta numerosas inclusiones de angelaíta, aikinita, wittichenita y miharaíta. Esta paragénesis se presenta en vetas asociada a diferentes rocas volcánicas de la Formación Lonco Trapial de edad jurásica. La composición química de angelaíta fue obtenida con una microsonda electrónica. Se presenta en granos anhedrales de 10-100mm, es de color gris verdoso, moderadamente pleocroica y anisótropa.

  1. Jurassic tetrapods and flora of Cañadón Asfalto Formation in Cerro Cóndor area, Chubut Province Flora y tetrápodos del Jurásico de la Formación Cañadón Asfalto en el área de Cerro Cóndor, provincia de Chubut

    OpenAIRE

    Ignacio H. Escapa; Juliana Sterli; Diego Pol; Laura Nicoli

    2008-01-01

    The plant and tetrapod fossil record of the Cañadón Asfalto Formation (Middle to Late Jurassic) found in Cerro Cóndor area (Chubut Province) is summarized here. The flora is dominated by conifers (Araucariaceae, Cupressaceae sensu lato) but also includes ferns and equisetaleans. The tetrapod fauna is composed of dinosaur taxa described in the 70's as well as other remains recently described and other vertebrate groups such as amphibians, turtles, and mammals. The amphibian remains have been i...

  2. Trichothurgus bolithophilus sp. n. (Hymenoptera, Megachilidae a bee nesting in horse manure pads in Patagonia, Argentina

    Directory of Open Access Journals (Sweden)

    Laura Sarzetti

    2012-10-01

    Full Text Available A new species of Trichothurgus, described herein, T. bolitophilus sp. n., nests in dry horse manure pads in Chubut, Patagonia, Argentina. The simplest nests consisted of one main tunnel ending in a series of 2 cells without partitions between them. In the more complex ones up to 6 cells were connected laterally to the main tunnel. Nests showed signs of reutilization. The behavior of nesting in horse manure is described for the first time in bees.

  3. Variation in external morphology of resident bottlenose dolphins (Tursiops truncatus) in Bahia San Antonio, Patagonia, Argentina.

    OpenAIRE

    Vermeulen, Els; Cammareri, Alejandro

    2010-01-01

    Two geographic variations of bottlenose dolphins were described in Argentina (Bastida & Rodriguez, 2003); bottlenose dolphins characterized by their triangular dorsal fin shape (coast of the province of Buenos Aires), and bottlenose dolphins characterized by their falcate dorsal fin shape (coast of the province of Chubut). It was stated that `their clear difference would indicate that both geographic forms are isolated¿ (Bastida & Rodriguez, 2003 p.137). A photo-identification study carrie...

  4. Sifonápteros parásitos de los roedores Sigmodontinos de la Patagonia norte de la Argentina: estudios sistemáticos y ecológicos

    OpenAIRE

    2013-01-01

    El objetivo del presente trabajo fue contribuir al conocimiento de la diversidad de los sifonápteros parásitos de roedores sigmodontinos de la provincia del Chubut (Patagonia Norte, Argentina), con énfasis sistemático y con el fin de interpretar las relaciones parásito-hospedador-ambiente

  5. Vulnerability Factors in the Middle Class: Evidence for Argentina and Mexico after the Crisis of the 1990s

    Directory of Open Access Journals (Sweden)

    Gabriela Liliana Galassi

    2012-01-01

    Full Text Available Este trabajo explora el perfil de la clase media argentina y la mexicana durante las últimas crisis en ambos países. Se combinan las miradas de vulnerabilidad social y análisis de clase, subyaciendo teóricamente una "matriz vulnerabilidad-clases sociales". El análisis emplea las encuestas de hogares de Argentina para 1998 y 2003 y México, 1994 y 1996. Se observa que mientras la clase media mexicana se vio principalmente afectada durante la crisis llamada "efecto tequila" vía sus activos físicos (condiciones habitacionales, en Argentina la educación y el mercado laboral fueron los principales mecanismos afectados por la crisis de 2001.

  6. Escuela media y abandono escolar en Argentina: aproximaciones a un debate pendiente Middle school and dropout in Argentina: approaches to an unresolved debate

    Directory of Open Access Journals (Sweden)

    Analia Otero

    2011-12-01

    Full Text Available Este texto tiene como objetivo exponer panorámicamente un recuento del surgimiento histórico de la educación media en Argentina, para avanzar luego en la evolución de la expansión matricular hasta la actualidad, contemplando los rasgos fundamentales de la misma. A partir de allí, se expondrán factores incidentes en la problemática del abandono escolar, prestando énfasis a las características de la modalidad técnica. Se retomarán puntos centrales de un debate escasamente explorado que es aquel que aborda la intersección específica entre abandono escolar y los estudiantes de modalidad técnica. Se subraya que las condiciones del mercado laboral actual, como la amplitud de la precarización, el avance del sector servicios y la estrechez en materia de industrialización tornan aún más acuciante el contorno de discusiones sobre esta problemática. Este panorama marcha en paralelo a cambios de envergadura en el sistema educativo nacional, enmarcados en sucesivas modificaciones a las normativas jurídicas que lo orientan.This text aims to expose panoramically a recount of the historical emergence of secondary education in Argentina, to advance later in the evolution of the expansion currently watching enrolling until the fundamental features of it. From there, it will expose the factors which affect the dropout problem giving particular emphasis to the characteristics of the technical arrangement. Focal points will resume in a little explored that debate is one that addresses the specific intersection between ESL students and technical arrangement. It emphasizes that current labor market conditions, as the amplitude of the precarious, the advance of the service sector and the narrowness in industrialization becomes even more pressing the outline of discussions on this issue. Panorama marching in parallel with major changes in the national education system, surrounded by successive amendments to legal regulations that guide the system.

  7. First fossil record of Discocephalinae (Insecta, Pentatomidae): a new genus from the middle Eocene of Río Pichileufú, Patagonia, Argentina

    Science.gov (United States)

    Petrulevičius, Julián F.; Popov, Yuri A.

    2014-01-01

    Abstract A new genus and species of Discocephalini, Acanthocephalonotum martinsnetoi gen. n. et sp. n. is described from Río Pichileufú, middle Eocene of Patagonia, Argentina at palaeolatitude ~ 46°S. The new species is the first fossil representative of the Discocephalinae. This taxon is extant in equatorial to subtropical America, and some species reach warm temperate latitudes (Buenos Aires province). The new genus is distinguished from the other genera of Discocephalini by the combination of these characters: interocular width greater than head length; head massive and quadrangular with the anterior margin almost straight; juga touching each other; labrum thick and curved; triangular ante-ocular process extending beyond the eye; broad spine-like antero-lateral process of the pronotum; pronotum explanate and bean shaped; scutellum triangular with a circular tongue reaching the anterior side of abdominal segment 7; and wings well developed with membrane just surpassing end of abdomen. PMID:25061387

  8. Evolución geomorfológica y cronología relativa de los niveles aterrazados del área adyacente a la desembocadura del río Chubut al Atlántico (Provincia del Chubut Geomorphological evolution and relative chronology of terrace levels adjacent to the Chubut River mouth to the Atlantic (Chubut Province.

    Directory of Open Access Journals (Sweden)

    Emilio F González Díaz

    2011-12-01

    that is contested. The methodological recognition of the ancient alluvial fan and its genetic and temporary distinction, were made from geomorphologic analysis and altimetric evaluation. Time assignment is a problem not yet solved. The methodology led to three different geomorphic systems or levels related to successive episodes of aggradation and erosion, with increasing lower positions, which coincide with a complex paleodrainage ancient alluvial fan. its successive developments are linked to proposed proto-rivers Chubut 1, 2, 3 and to a Simpson paleo-valley. Despite the mentioned limitations, we propose that the evolutionary model of ancient alluvial fan responds to a structure of cut and fill which is supported by the poly-formational composition of an ancient alluvial fan, and a gradual southward migration of the paleo-drainage. Based on geomorphologic analysis and altimetric distinction an upper level, composed of the remains of three plains (Pa, Pm and Pb, a middle level with two terraces (T1 and T2 and a complex lower level and five terraces (T3, T4, T5 T6 and T7 were recognized. Relict evidences of paleo-drainages are proposed based on the Estancia Paz and Don Morgan-Saraza paleo-valleys in the upper level. The age of the ancient alluvial fan based on the geomorphic evolution of the study area is tentatively assigned to an uncertain period between the late Pleistocene and late Sangamon interglacial at the end of the last glaciation.

  9. Age and composition of granulite xenoliths from Paso de Indios, Chubut province, Argentina

    NARCIS (Netherlands)

    Castro, Antonio; Aragon, Eugenio; Diaz-Alvarado, Juan; Blanco, Idael; Garcia-Casco, Antonio; Vogt, Katharina; Liu, D-Y.

    2011-01-01

    Granulite xenoliths enclosed in Paleogene alkali basalts from the locality of Paso de Indios in The Argentinean Patagonia, have been studied for petrology, geochemistry and U–Pb SHRIMP zircon geochronology. These are lower crust xenoliths composed of pyroxene and plagioclase dominantly. Symplectitic

  10. The chromium isotopic composition of an Early to Middle Ordovician marine carbonate platform, eastern Precordillera, San Juan, Argentina

    DEFF Research Database (Denmark)

    D'Arcy, Joan Mary; Frei, Robert; Gilleaudeau, Geoffrey Jon;

    A broad suite of redox proxy data suggest that despite ocean and atmosphere oxygenation in the late Neoproterozoic, euxinic conditions persisted in the global deep oceans until the at least Ordovician [1,2,3]. Major changes in the sulphur isotopic composition of carbonate associated sulphate and co......-existing pyrite in the later Middle Ordovician are consistent with oxygen mixing at depth and ventilation of euxinic bottom waters [4]. We measured the Cr isotopic composition of an Early to Middle Ordovician carbonate platform to test whether Cr isotopes record ocean oxygenation. The Cr isotopic composition...

  11. Caracterización geológica del skarn "El Abuelo" Alto Río Senguerr, Chubut

    Directory of Open Access Journals (Sweden)

    M.E. Lanfranchini

    2004-12-01

    Full Text Available El skarn "El Abuelo" está situado en el extremo sudoccidental de la Provincia del Chubut, República Argentina. Se desarrolla en un ambiente tectónico de arco magmático, en corteza continental. Está emplazado en sedimentitas silicoclásticas con intercalaciones carbonáticas y se vincula a cuerpos intrusivos riodacíticos, conjunto atribuido al Cretácico inferior. En esta manifestación se reconocieron anomalías en elementos metalíferos (Fe, Cu, Pb, Zn, Ag que le confieren interés como guía para la exploración de recursos minerales en esta región. La presente contribución tiene por finalidad tipificar al skarn a través de una caracterización geológica y mineralógica. La asociación paragenética de minerales reconocidos permitió identificar dos episodios: uno metasomático y otro hidrotermal, ambos desarrollados en las sedimentitas (exoskarn. El primero fue originado por fluidos de derivación magmática, que provocaron la formación de minerales calcosilicáticos. Posteriormente la incorporación de agua en el sistema facilitó el desarrollo de minerales hidratados, retrogradando parcialmente al skarn, proceso que fue seguido por la depositación de hematita, magnetita y sulfuros, acompañados de sílice. La asociación de minerales calcosilicáticos, junto a la variación en la composición química de piroxenos y granates y la mineralización identificada, permiten tipificar al skarn "El Abuelo" como cálcico, con hierro como metal dominante.

  12. Support for an “A-type” Pangea reconstruction from high-fidelity Late Permian and Early to Middle Triassic paleomagnetic data from Argentina

    Science.gov (United States)

    Domeier, Mathew; van der Voo, Rob; Tomezzoli, Renata N.; Tohver, Eric; Hendriks, Bart W. H.; Torsvik, Trond H.; Vizan, Haroldo; Dominguez, Ada

    2011-12-01

    A major disparity is observed between the late Paleozoic-early Mesozoic apparent polar wander paths (APWPs) of Laurussia and Gondwana when the landmasses are re-assembled in a conventional "A-type" Pangea. This discrepancy has endured from the earliest paleomagnetic reconstructions of the supercontinent, and has prompted discussions of non-dipole paleomagnetic fields and alternative paleogeographic models. Here we report on a joint paleomagnetic-geochronologic study of Late Permian and Early to Middle Triassic volcanic and volcaniclastic rocks from Argentina, which demonstrates support for an A-type model, without requiring modification to the geocentric axial dipole hypothesis. New SHRIMP U-Pb and 40Ar-39Ar isotopic dating has reinforced the inferred age of the sequences, which we estimate at ˜264 Ma (Upper Choiyoi Group) and ˜245 Ma (Puesto Viejo Group). Field-stability tests demonstrate that the volcanic rocks are carrying early/primary magnetizations, which yield paleopoles: 73.7°S, 315.6°E, A95: 4.1°, N: 40 (Upper Choiyoi) and 76.7°S, 312.4°E, A95: 7.3°, N: 14 (Puesto Viejo). A comprehensive magnetic fabric analysis is used to evaluate structural restorations and to correct for magnetization anisotropy. The paleomagnetic results derived from volcaniclastic rocks are interpreted to be affected by inclination shallowing, and corrections are discussed. A comparison of these new results with the existing Permian-Triassic paleomagnetic data from Gondwana suggests the presence of widespread bias in the latter. We contend that such bias can explain the observed APWP disparity, at least for Late Permian-Middle Triassic time, and that alternative paleogeographic reconstructions or non-dipole paleomagnetic fields do not need to be invoked to resolve the discrepancy.

  13. Un ejemplo excepcional de brechamiento (sismita? en el grupo Chubut, Patagonia An exceptional example of brecciation (seismite? in the Chubut Group, Patagonia

    Directory of Open Access Journals (Sweden)

    Edgardo Navarro

    2010-10-01

    Full Text Available Un brechamiento excepcional en unidades sedimentarias pelíticas del Grupo Chubut en la cercanía de la localidad de Telsen, provincia de Chubut, muestra que han sido afectadas por una etapa de telodiagénesis (diagénesis de exhumación. Presentan evidencias de deformación frágil relacionadas con mecanismos de sobrepresurización. Estos depósitos de edad aptiana, se disponen subhorizontales y constituyen asociaciones fluviales lateralmente extendidas. Un continuo de estructuras sedimentarias deformacionales se desarrollan enteramente sobre los depósitos pelíticos correspondientes a la asociación de facies de llanura de inundación. Cuatro intervalos fueron reconocidos de manera continua: 1 fracturado in situ, 2 brechado, 3 brechado fangosostenido y 4 homogeneizado. Conductos de escape potenciales de diversos tamaños, tienen desarrollo en el intervalo fangosostenido, que en ocasiones llegan a atravesar el intervalo superior homogéneo. El mecanismo de sobrepresurización, se habría visto favorecido por la presencia de cuerpos de areniscas conglomerádicas tobáceas confinantes (capa sello, que impidieron el escape de fluidos, permitiendo la licuefacción parcial a total y fluidización de la rocas sedimentarias de la llanura aluvial. Fallas normales reconocidas en el área, que afectan al Grupo Chubut, constituirían un elemento de juicio para establecer un origen sísmico a estas fábricas brechadas, cuya magnitud habría superado M>5 de la escala Mercalli modificada. La característica reológica frágil del material a partir del cual se originaron, convierte a estas estructuras en un ejemplo natural excepcional de brechamiento a partir de un mecanismo de sobrepresurización fosilizado.Sedimentary units of the Chubut Group in the proximity of the Telsen locality, in Chubut province affected by a telodiagenesis stage, display evidence of brittle deformation related to over-pressurizing mechanisms. These sub-planar deposits of Aptian age

  14. Caracterización geológica del skarn "El Abuelo" Alto Río Senguerr, Chubut Geological characterization of "El Abuelo" skarn deposit, Alto Rio Senguerr, Chubut

    Directory of Open Access Journals (Sweden)

    M.E. Lanfranchini

    2004-12-01

    Full Text Available El skarn "El Abuelo" está situado en el extremo sudoccidental de la Provincia del Chubut, República Argentina. Se desarrolla en un ambiente tectónico de arco magmático, en corteza continental. Está emplazado en sedimentitas silicoclásticas con intercalaciones carbonáticas y se vincula a cuerpos intrusivos riodacíticos, conjunto atribuido al Cretácico inferior. En esta manifestación se reconocieron anomalías en elementos metalíferos (Fe, Cu, Pb, Zn, Ag que le confieren interés como guía para la exploración de recursos minerales en esta región. La presente contribución tiene por finalidad tipificar al skarn a través de una caracterización geológica y mineralógica. La asociación paragenética de minerales reconocidos permitió identificar dos episodios: uno metasomático y otro hidrotermal, ambos desarrollados en las sedimentitas (exoskarn. El primero fue originado por fluidos de derivación magmática, que provocaron la formación de minerales calcosilicáticos. Posteriormente la incorporación de agua en el sistema facilitó el desarrollo de minerales hidratados, retrogradando parcialmente al skarn, proceso que fue seguido por la depositación de hematita, magnetita y sulfuros, acompañados de sílice. La asociación de minerales calcosilicáticos, junto a la variación en la composición química de piroxenos y granates y la mineralización identificada, permiten tipificar al skarn "El Abuelo" como cálcico, con hierro como metal dominante."El Abuelo" skarn deposit is located in southwest Chubut province. It was formed in a magmatic arc tectonic environment, developed in continental crust. The skarn is hosted in low cretaceous silicoclastic sands interbedded with limestones, and it is related to small rhyodacitic sub-volcanic bodies. Anomalous contents of metals (Fe, Cu, Pb, Zn, Ag provide an interesting exploration guide. This paper is devoted to give a geological and a mineralogical characterization of the skarn, in order

  15. El caso del Outburst Flood histórico de la laguna Derrumbe, Cholila, Chubut: Colapso de dique Morénico en la Cordillera Norpatagónica The historic outburst flood of the laguna Derrumbe, Cholila, Chubut: Fast glacier retreat and moraine dam failure in North Patagonian Cordillera

    Directory of Open Access Journals (Sweden)

    Bruno Colavitto

    2012-09-01

    Full Text Available La laguna Derrumbe es un cuerpo de agua ubicado en los Andes Norpatagónicos en la provincia de Chubut, Argentina. Está contenida en un circo glaciario y endicada por una morena frontal del glaciar homónimo. A través del reconocimiento de campo se pudo describir a esta laguna y a un importante depósito rocoso que se halla aguas abajo de la misma, interpretado como un depósito de outburst flood. Estos depósitos son generados por procesos de alta energía relacionados con la rotura de un dique natural, en este caso un dique morénico. El estudio realizado permitió concluir que la morena frontal del glaciar Derrumbe sufrió una rotura parcial en tiempos históricos, desatando así una inundación súbita aguas abajo de la laguna, a través del valle del río Tigre, en la localidad de Cholila. En este trabajo se analizaron las posibles causas que dieron lugar a la rotura, la cual probablemente sea producto del rápido retroceso que el glaciar experimentó durante la década del ´50 y principios del ´60. Retroceso comparable con el ocurrido en muchos de los cuerpos glaciares de los Andes Patagónicos durante el último siglo.The Laguna Derrumbe is a body of water located in the North Patagonian Andes, in Chubut province, Argentina. This lake is contained in a glacial cirque and dammed by the terminal moraine of the namesake glacier. Through field survey it was possible to describe this lake and an important rocky deposit downstream of it, which is interpreted as an outburst flood deposit. These deposits are generated by high-energy processes related to the failure of a natural dam, in this case a moraine dam. The study made allowed to conclude that the frontal moraine of the Derrumbe glacier suffered a partial rupture in historic times, unleashing a flash flood downstream to the lake, through the Tigre river valley in the town of Cholila. In this work the possible causes that led to the failure are discussed, concluding that the main cause

  16. Un ejemplo excepcional de brechamiento (sismita? en el grupo Chubut, Patagonia

    Directory of Open Access Journals (Sweden)

    Edgardo Navarro

    2010-10-01

    Full Text Available Un brechamiento excepcional en unidades sedimentarias pelíticas del Grupo Chubut en la cercanía de la localidad de Telsen, provincia de Chubut, muestra que han sido afectadas por una etapa de telodiagénesis (diagénesis de exhumación. Presentan evidencias de deformación frágil relacionadas con mecanismos de sobrepresurización. Estos depósitos de edad aptiana, se disponen subhorizontales y constituyen asociaciones fluviales lateralmente extendidas. Un continuo de estructuras sedimentarias deformacionales se desarrollan enteramente sobre los depósitos pelíticos correspondientes a la asociación de facies de llanura de inundación. Cuatro intervalos fueron reconocidos de manera continua: 1 fracturado in situ, 2 brechado, 3 brechado fangosostenido y 4 homogeneizado. Conductos de escape potenciales de diversos tamaños, tienen desarrollo en el intervalo fangosostenido, que en ocasiones llegan a atravesar el intervalo superior homogéneo. El mecanismo de sobrepresurización, se habría visto favorecido por la presencia de cuerpos de areniscas conglomerádicas tobáceas confinantes (capa sello, que impidieron el escape de fluidos, permitiendo la licuefacción parcial a total y fluidización de la rocas sedimentarias de la llanura aluvial. Fallas normales reconocidas en el área, que afectan al Grupo Chubut, constituirían un elemento de juicio para establecer un origen sísmico a estas fábricas brechadas, cuya magnitud habría superado M>5 de la escala Mercalli modificada. La característica reológica frágil del material a partir del cual se originaron, convierte a estas estructuras en un ejemplo natural excepcional de brechamiento a partir de un mecanismo de sobrepresurización fosilizado.

  17. SHRIMP U-Pb zircon geochronology of Mesozoic granitoids from the Bariloche region (Argentina): Implications for the Middle-Late Jurassic evolution of the North Patagonian batholith.

    Science.gov (United States)

    Castro, Antonio; Vujovich, Graciela; Fernández, Carlos; Moreno-Ventas, Iñaki; Martino, Roberto; Corretgé, Guillermo; Díaz-Alvarado, Juan; Heredia, Nemesio; Gallastegui, Gloria

    2010-05-01

    A detailed U-Pb geochronological study has been carried out on granitoids of the North Patagonian batholith in the region of Bariloche (Argentina), between 40°30' S and 41°45' S. In this region, the calc-alkaline, subduction-related, granitic bodies of the North Patagonian batholith intruded an Early Jurassic volcano-sedimentary sequence contemporary with the intrusion of the Subcordilleran Patagonian batholith (J1 magmatism), and unconformably overlying a metamorphic Gondwanan basement. All these rocks were affected by the Andean compressional phases during the Cenozoic. U-Pb SHRIMP dating of zircon crystals from 11 samples (109 spots) of diorites, tonalites, granodiorites and granites yielded dates ranging from 173 ± 3 Ma to 150 ± 2 Ma (Aalenian to Tithonian). No significant age differences have been identified among the distinct lithological types. Also no spatial trend emerges from these results, although ages tend to be younger westward in the traverse of the Manso River (≈ 41° 35' S). Two peaks appear in the probability density plot of zircon ages. Most of the dated zircons are Bajocian-Bathonian (Middle Jurassic, ≈169 Ma, J2 magmatism), while a secondary peak is observed at the boundary Oxfordian-Kimmeridgian (Late Jurassic, ≈ 156 Ma, J3 magmatism). The J2 magmatic period is coeval to the main stage of effusive activity (V2) in the huge volcanic Chon Aike Province, while J3 coincides with the lesser V3 period of volcanism in Chon Aike. These new geochronological data strongly contribute to the knowledge of the first stages of tectonic evolution of the Andean subduction margin in southern South America. Contrary to previous models, it can be proposed that the subduction-related Mesozoic magmatism started well before the Late Jurassic, and that a continuous supply of calc-alkaline magmas dominated the active margin of South America during at least 190 Ma, from the Early Jurassic to nowadays. Therefore, no dramatic time gap can be observed between

  18. Jurassic tetrapods and flora of Cañadón Asfalto Formation in Cerro Cóndor area, Chubut Province

    Directory of Open Access Journals (Sweden)

    Ignacio H. Escapa

    2008-12-01

    Full Text Available The plant and tetrapod fossil record of the Cañadón Asfalto Formation (Middle to Late Jurassic found in Cerro Cóndor area (Chubut Province is summarized here. The flora is dominated by conifers (Araucariaceae, Cupressaceae sensu lato but also includes ferns and equisetaleans. The tetrapod fauna is composed of dinosaur taxa described in the 70's as well as other remains recently described and other vertebrate groups such as amphibians, turtles, and mammals. The amphibian remains have been interpreted as representatives of a new species of Notobatrachus, considered one of the most basal members of the anuran lineage. Similarly, turtle remains have been recently recognized as a new species of basal turtle, bringing valuable information about the early evolution of this group. The dinosaur remains are largely dominated by saurischian taxa, represented by basal forms of Eusauropoda and Tetanurae. In addition, three different mammalian species have been identified and considered as early representatives of an endemic Gondwanan mammalian fauna. The fossil record of this formation represents the most completely known biota from the continental Middle to Late Jurassic of the Southern Hemisphere and one of the most complete of the entire world.

  19. Circular structures of Bajada del Diablo (Argentina): geophysical signatures

    Science.gov (United States)

    Prezzi, C. B.; Orgeira, M. J.; Martinez, O.; Acevedo, R. D.; Ponce, F.; Goldmann, G.; Magneres, I.; Rabassa, J.

    2016-05-01

    Bajada del Diablo is located in the Northern Patagonian Massif, Chubut, Argentina. The study area includes several circular structures found in Miocene olivine basalts of the Quiñelaf Eruptive Complex and in the Late Pliocene/Early Pleistocene Pampa Sastre conglomerates. An impact origin has been proposed for these circular structures. With the aim of further investigate the proposed impact origin, topographic, gravimetric, magnetic, resistivity, palaeomagnetic and electromagnetic surveys in two circular structures (`8' and `G') located in Pampa Sastre conglomerates and in basalts of the Quiñelaf Eruptive Complex were carried out. The new geophysical results support the hypothesis of an impact origin. However, the confirmation of such an origin through the findings of shock metamorphism evidences and/or the recovery of meteorites remains elusive.

  20. Revisión sistemática del género Halictillus (Hymenoptera: Halictidae: Augochlorini en la Argentina Systematic revision of the genus Halictillus (Hymenoptera: Halictidae: Augochlorini in Argentina

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    Rocío A. González-Vaquero

    2010-06-01

    Full Text Available Entre los grupos basales de la tribu Augochlorini, se encuentra el género de abejas Halictillus Moure, con sólo dos especies descriptas y ninguna revisión sistemática hasta el momento. En este trabajo, se describen cuatro especies nuevas de Halictillus de la Argentina y Chile. Las especies nuevas son: H. amplilobus sp. nov. (de Buenos Aires, Córdoba y Río Negro, H. peninsularis sp. nov. (de la Península de Valdés, Chubut, H. badiclypeus sp. nov. (de Mendoza, La Rioja y Catamarca y H. reticulatus sp. nov. (de las zonas occidentales de Chubut, Neuquén y Río Negro en la Argentina, y las regiones de La Araucanía y Los Lagos en Chile. Se presenta una clave para la determinación de las seis especies que componen el género, así como descripciones detalladas, imágenes de microscopio electrónico de barrido y un mapa de distribución geográfica de las especies nuevas.Among the basal genera of the tribe Augochlorini is the bee genus Halictillus Moure, which comprises only two described species and has no systematic revision at the moment. Four new species of Halictillus from Argentina and Chile are described in this contribution: H. amplilobus sp. nov. (from Buenos Aires, Córdoba and Río Negro Provinces, H. peninsularis sp. nov. (from Península Valdés, Chubut Province, H. badiclypeus sp. nov. (from Mendoza, La Rioja and Catamarca Provinces and H. reticulatus sp. nov. (from western Chubut, Neuquén and Río Negro Provinces in Argentina, and the regions of La Araucanía and Los Lagos in Chile. A key to the six species of the genus, as well as detailed descriptions, scanning electron microscope images and a map with distributional data of the new species are provided.

  1. Juan Valentin: un gelogo que supo resumir la geologa argentina Juan Valentin: a geologist that compiled the geology of Argentina

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    Florencio Gilberto Aceolaza

    2011-09-01

    Full Text Available Juan Valentin fue un destacado gelogo alemn que arrib a nuestra patria en 1894 para integrarse a los equipos que entonces desarrollaban investigaciones desde el Museo de La Plata y el Museo Nacional de Buenos Aires. Su trabajo lo llev, inicialmente, a estudiar las sierras de Buenos Aires y luego tambin lo hizo en Crdoba, San Luis, Salta y Jujuy. Fue grande su actividad, motivo por el cual, se lo incorpor a la Sociedad Cientfica Argentina asumiendo la revisin y compaginacin de los Anales que en ese tiempo editaba la mencionada institucin. Esta actividad ms el conocimiento de campo logrado, lo llev a confeccionar un extenso artculo donde describi la geologa de la Argentina, el cual fue agregado a la edicin del Segundo Censo Nacional. A este trabajo se lo considera una importante sntesis sobre la constitucin geolgica del pas. Entusiasmado con el apoyo que vena logrando planific un programa de investigacin para desarrollar en el norte de la Patagonia e incrementar el conocimiento de la estratigrafa regional. As fue que, en octubre de en 1897, se dirigi a Puerto Madryn donde llev adelante sus primeros trabajos en el valle del ro Chubut y la zona de Cabo Raso. Revisando afloramientos en las cercanas de Aguada de Reyes muri en un fatal accidente, como dice la crnica, con sus bolsillos repletos de los fsiles que haba coleccionado. Haca poco ms de dos aos que se desempeaba en el pas y contaba con 30 aos recin cumplidos. La mencin histrica narra que su cuerpo fue sepultado en la ciudad de Rawson.Juan Valentin was a German geologist that arrived to Argentina in 1894 to join the staff members of the Museum of La Plata and the National Museum of Buenos Aires. His work initially took him to explore the Buenos Aires ranges, and then those of Crdoba, San Luis, Salta and Jujuy. He joined the Argentine Scientific Society, assuming the edition of the Annals. His activities and the achieved knowledge in the field led him to prepare a lengthy article describing the

  2. Geología de la quebrada Honda, cuenca del lago La Plata, Chubut Geology of the Quebrada Honda, basin of Lago La Plata, Chubut

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    G.V. Depine

    2004-12-01

    Full Text Available La quebrada Honda, situada en el sur de la cuenca de los lagos La Plata y Fontana, en la provincia de Chubut, presenta una columna estratigráfica que comienza en el Jurásico superior con rocas calcoalcalinas de arco volcánico intermedias a ácidas de la Formación Lago La Plata. Las rocas sedimentarias que rellenan la cuenca de intraarco neocomiana corresponden al Grupo Coyhaique, dentro del cual se encuentran las Formaciones Tres Lagunas y Katterfeld, que se ubican dentro de un modelo paleoambiental como cortejo sedimentario de borde de plataforma, sucedido por un cortejo transgresivo, cuya edad es acotada al Hauteriviano inferior, debido al hallazgo de restos de Favrella americana en pelitas de la Formación Katterfeld. Vinculados con la extensión que da lugar a la cuenca se registran los cuerpos hipabisales calcoalcalinos básicos del Gabro Quebrada Honda y se los relaciona con un volcanismo de características más evolucionadas de la Formación Don Rueda, de edad neocomiana tardía. Si bien este magmatismo de arco volcánico es subaéreo, presenta indicios de interacción con cuerpos de agua por lo que corrobora la concomitancia de este evento con la sedimentación póstuma de Grupo Coyhaique. Se registra un evento de inversión tectónica que tendría una edad máxima de 80 Ma.The quebrada Honda is situated in the Lago La Plata-Fontana basin in Chubut. The stratigraphy of the area begins in the Upper Jurassic with the calc-alkaline intermediate to acidic Lago La Plata Formation rocks. The Neocomian Coyhaique Group, which includes the Tres Lagunas and Katterfeld Formations, is the sedimentary filling of the intraarc basin that was developed by that time. These units are included in a paleoenviromental model as a shelf-margin system tract followed by a transgressive system tract. The discovery of Favrella americana in the Katterfeld Formation constrains to the Early Hauterivian the age of these sequences. The hypabissal calc

  3. Diversidad de musgos en ambientes degradados sujetos a restauración en el Parque Nacional Lago Puelo (Chubut, Argentina Moss diversity in degraded environments under restoring in the Lago Puelo National Park (Chubut, Argentina

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    ADRIANA E ROVERE

    2011-12-01

    Full Text Available La restauración ecológica es una disciplina que intenta recuperar atributos perdidos en un ecosistema (diversidad de especies, estructura y función. El objetivo de este trabajo fue evaluar la diversidad de musgos y sus formas de vida en tres ambientes con diferentes niveles de degradación y los sustratos en los que estos se desarrollan. El área de estudio corresponde a un sector que se está restaurando dentro de la Reserva Nacional Lago Puelo. En ella se encuentran tres ambientes distintos: (1 área remanente de bosque maduro de Nothofagus dombeyi, (2 bosque secundario de Austrocedrus chilensis, y (3 matorral dominado por especies exóticas. Se recorrió cada uno de los ambientes, registrando los sustratos con musgos, formas de vida y géneros. Los resultados evidencian una reducción de los sustratos disponibles y de las especies presentes conforme avanza el grado de alteración, desde el área de bosque maduro de N. dombeyi (9 sustratos: 17 géneros: 7 formas de vida, al sector de bosque secundario de A. chilensis (6 sustratos: 8 géneros: 5 formas de vida, siendo menor en el matorral dominado por especies exóticas (1 sustrato: 4 géneros: 3 formas de vida. Los musgos desempeñan funciones importantes en los ecosistemas, son fundamentales en el balance hídrico, pioneros en suelos inestables controlando la erosión y colonizando sitios alterados, sirven como hábitat y alimento para invertebrados, y también constituyen sitios propicios para la germinación de plantas vasculares. Si bien algunas especies leñosas ven afectada su germinación por la presencia de musgos, estos facilitan la germinación de otras especies arbóreas de los bosques templados. Los resultados podrían ser utilizados en restauración, ya sea recreando los sustratos ausentes o realizando traslado de sustratos con musgos, a fin de favorecer la recuperación de áreas boscosas degradadas considerando la biodiversidad original.Ecological restoration is a discipline that seeks to recover the attributes of an ecosystem which have been lost (species diversity, structure and function. The objective of this work was to evaluate the diversity and different life forms of mosses in three environments with varying levels of degradation, as well as the different substrates they grow on. Our study area lies within Lago Puelo National Reserve, in a sector undergoing restoration. Three different environments are found in this sector: (1 a remnant of mature Nothofagus dombeyi forest, (2 secondary Austrocedrus chilensis forest and (3 scrubland dominated by exotic species. Each of these environments was analyzed, and substrates with mosses, life forms and genera were registered. Our results showed a decrease in available substrates and species present as the level of disturbance increased, from the area of mature N. dombeyi forest (9 substrates; 17genera; 7 life forms, followed by the A. chilensis secondary forest (6 substrates: 8 genera: 5 life forms , to the scrubland dominated by exotic species (1 substrate; 4 genera; 3 life forms. Mosses carry out important functions in ecosystems, as they are essential to the water balance, they are pioneers in unstable soils, where they control erosion and colonize disturbed sites, they provide habitat and food for invertebrates, and also constitute suitable sites for the germination of vascular plants. Although the germination of some woody species is negatively affected by the presence of mosses, the germination of other temperate forest tree species is favored. These results can be useful in restoration, whether for the recreation of absent substrates or the transfer of substrates with mosses, in order to promote the recovery of degraded forest areas to their original levels of biodiversity.

  4. Geoquímica dela zona caolinizada de Mina Estrella Gaucha, provincia de Chubut Geochemistryof the kaolinized zone of Estrella Gaucha mine, Province of Chubut

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    Pedro J. Maiza

    2009-06-01

    Full Text Available Mina Estrella Gaucha es un yacimiento de caolínubicado a 70 km de la localidad de Alto Río Senguerr, provincia de Chubut,emplazado en areniscas tobáceas y conglomerádicas de la Formación Apeleg deedad cretácica inferior. La mineralogía de la zona estudiada es muy homogénea yestá constituida por dickita prácticamente pura con muy escasa cantidad dealunita y un contenido variable de cuarzo. A escala del yacimiento sedesarrolla una zonación en la que se distinguen cuatro zonas de alteración,distribuidas de techo a piso de la forma siguiente: 1 nivel superior silicificado;2 zona alunitizada; 3 zona caolinizada y 4 zona de sericita-clorita. Con elfin de determinar el origen del depósito se ha llevado a cabo un estudiomineralógico, de geoquímica de elementos mayores, menores y traza y de losisótopos estables de O y H de la zona caolinizada. Los análisis químicos deelementos mayoritarios confirman que se trata de caolín prácticamente puro. Elcontenido de elementos traza y las relaciones (P vs. S, Zr vs.Ti, Cr + Nb vs. Ti + Fe, y Ce + Y + La vs. Ba + Sr sugieren queel caolín se ha formado por alteración hidrotermal de las tobas volcánicas encajantes.La composición isotópica de los caolines muestran valores de δ18Oentre +5,1 y +8.8 ‰ y de D entre -82 y -89‰, compatibles con unorigen hidrotermal de los mismos.Estrella Gaucha mine is situated 70 km of Alto Río Senguerr(Province of Chubut.It is a kaolin deposit hosted by sandy and conglomeratic tuffs of the ApelegFormation (Lower Cretaceous. The mineralogy of the zone is very homogeneousand it is characterized by dickite almost pure, traces of alunite and quartz.There are four alteration zones. 1 silicification; 2 zone with alunite; 3 kaolinizedzone and 4 zone with sericite - chlorite. In order to know the origin of thedeposit a mineralogical, geochemical (major and trace elements and stableisotope study (O and H of the kaolinized zone was carried out. Trace elementcontent and

  5. Paleogeographic and tectonic implications of the first paleomagnetic results from the Middle Late Cambrian Mesón Group: NW Argentina

    Science.gov (United States)

    Spagnuolo, Cecilia M.; Rapalini, Augusto E.; Astini, Ricardo A.

    2008-02-01

    The first paleomagnetic data from autochthonous Cambrian rocks in NW Argentina is reported to constrain the apparent polar wander path (APWP) of Gondwana during the Early Paleozoic. The paleomagnetic pole (Lat 4.5°S; Long 359.0°E; dp = 5.5; dm = 8.8; n = 26) was obtained from the red to purple sandstones of the Campanario Formation. These rocks present a characteristic remanence carried by fine-grained hematite. The pole indicates that during the Late Cambrian, rocks now exposed in the Eastern Cordillera of NW Argentina were deposited at relatively low latitudes (≈26°S), consistent with intense chemical alteration during wet and warm climates, as indicated from petrography of apparent first-cycle quarzites of the Mesón Group. However, the pole position is anomalous with respect to the most accepted apparent polar wander paths for Gondwana, suggesting that the study area (22°50'S, 65°00'W) underwent clockwise rotation of 38° ± 8°, likely related to the Cenozoic central Andes rotation pattern characteristic of the region.

  6. El caso del Outburst Flood histórico de la laguna Derrumbe, Cholila, Chubut: Colapso de dique Morénico en la Cordillera Norpatagónica

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    Bruno Colavitto

    2012-09-01

    Full Text Available La laguna Derrumbe es un cuerpo de agua ubicado en los Andes Norpatagónicos en la provincia de Chubut, Argentina. Está contenida en un circo glaciario y endicada por una morena frontal del glaciar homónimo. A través del reconocimiento de campo se pudo describir a esta laguna y a un importante depósito rocoso que se halla aguas abajo de la misma, interpretado como un depósito de outburst flood. Estos depósitos son generados por procesos de alta energía relacionados con la rotura de un dique natural, en este caso un dique morénico. El estudio realizado permitió concluir que la morena frontal del glaciar Derrumbe sufrió una rotura parcial en tiempos históricos, desatando así una inundación súbita aguas abajo de la laguna, a través del valle del río Tigre, en la localidad de Cholila. En este trabajo se analizaron las posibles causas que dieron lugar a la rotura, la cual probablemente sea producto del rápido retroceso que el glaciar experimentó durante la década del ´50 y principios del ´60. Retroceso comparable con el ocurrido en muchos de los cuerpos glaciares de los Andes Patagónicos durante el último siglo.

  7. Sedimentitas marinas de la Formación Barranca Final (Mioceno medio-superior de la cuenca del Colorado, aflorantes en el sureste de la provincia de La Pampa, Argentina Marine sediments of the Barranca Final Formation (Middle-Upper Miocence of the Colorado Basin in south-east La Pampa province, Argentina

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    G. Visconti

    2003-06-01

    Full Text Available En este trabajo se describen sedimentitas carbonáticas, silicoclásticas y evaporíticas del Mioceno de la cuenca del Colorado, aflorantes en el sureste de la provincia de La Pampa, Argentina. Sobre la base de la litología, las estructuras sedimentarias y los fósiles se identificaron siete facies y dos asociaciones de facies, correspondientes a ambientes marino somero (intermareal a supramareal y fluvial, para las secciones analizadas. Las sedimentitas marinas infrayacen a las areniscas fluviales de la Formación Río Negro y se consideran correlacionables con las sedimentitas de la Formación Barranca Final (Mioceno medio-superior, depositadas en la cuenca del Colorado durante la transgresión "Entrerriense". El hallazgo de estos niveles confirma la presencia de este mar en el sureste de la provincia de La Pampa.This paper describes Miocene carbonatic, siliciclastic and evaporitic sedimentary rocks of the Colorado Basin, from southeast of La Pampa Province, Argentina. Seven facies and two facies assemblages of shallow marine (intertidal and supratidal settings and fluvial environments are inferred on the basis of lithology, sedimentary structures, and fossil content. The thin marine level underlies the fluvial sandstones of the Río Negro Formation, and is considered contemporary with the Barranca Final Formation (middle-upper Miocene, of the Colorado Basin, which is the depositional record of the "Entrerriense" transgression. The occurrence of these sedimentary rocks confirms the presence of the "Entrerriense" sea in the south-east of La Pampa Province during the Miocene.

  8. Primer registro de diplostomiasis ocular en trucha arco iris cultivada en Patagonia (Argentina First record of diplostomiasis in cultured rainbow trout in Patagonia (Argentina

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    L. SEMENAS

    1998-01-01

    Full Text Available Se describe por primera vez para la Patagonia argentina un caso de diplostomiasisocular o catarata verminosa en peces de un establecimiento de críaen estanques en la provincia de Chubut. Para el diagnóstico se analizaroncaracoles (Chilina dombeiana por técnica de aplastamiento y truchasarco iris (Oncorhynchus mykiss por técnica de necropsia con microdisecciónde ojos. El hallazgo de esporocistos de Diplostomidae en el hepatopáncreasde los caracoles y de metacercarias de Diplostomum sp. en los cristalinosde los peces, permitió diagnosticar que la catarata era de origenparasitario. Se detallan las recomendaciones dadas para el control y laprevención de la enfermedad, basadas en métodos ecológicosteniendo en cuenta fundamentalmente el ciclo del parásito y lascaracterísticas de las instalaciones de la piscicultura. Este trabajoamplía la distribución de esta enfermedad en trucha arcoiris cultivada hasta el sur de ArgentinaA case of ocular diplostomiasis (parasite cataract in fish or eyefluke disease is described for the first time in a pisciculture with earth ponds in the province of Chubut. Snails (Chilina dombeiana were analysed by squashing and rainbow trout (Oncorhynchus mykiss by necropsy with microdissection of eyes, for the diagnosis. The findings of sporocysts of Diplostomidae in the hepatopancreas of snails and metacercariae of Diplostomum sp. in the lens of fish confirm the cataract as parasitic. Detailed recommendations for the control and prevention of the disease, based mainly on ecological methods, taking into account the cycle of the parasite and the characteristics of the building of the pisciculture are given. This paper amplifies the distribution of this disease in cultured rainbow trout, including the southern part of South America

  9. Magnetic properties of the remagnetized Middle-Ordovician limestones of the Ponón Trehué Formation (San Rafael Block, central-western Argentina): Insights into the Permian widespread Sanrafaelic overprint

    Science.gov (United States)

    Fazzito, Sabrina Y.; Rapalini, Augusto E.

    2016-10-01

    The widespread Sanrafaelic remagnetization reset most of the early Cambrian to mid-Ordovician carbonate platform of the Argentine Precordillera and the calcareous units of the San Rafael Block. We conducted a detailed rock-magnetic study on the Middle-Ordovician limestones of the Ponón Trehué Formation at both limbs of a tight anticline exposed in the San Rafael Block (Mendoza province, central-western Argentina) that are carriers of a syntectonic magnetization of Permian age. We found that the magnetic overprint in the Ponón Trehué Formation is carried by both pyrrhotite and magnetite, with goethite and subordinate haematite likely related to weathering. Hysteresis parameters, frequency dependence of magnetic susceptibility, Cisowski and modified Lowrie-Fuller tests suggest the presence of ultrafine particles of chemical origin. Demagnetization of natural remanent magnetization and of three-axis isothermal remanence confirm pyrrhotite and magnetite as important contributors to the remanence. Both minerals carry the same magnetic syntectonic component suggesting a coeval or nearly coeval remanence acquisition and therefore mineral formation. This and the results of the magnetic fabric analyses indicate an authigenic origin of the magnetic minerals during folding associated with the Sanrafaelic tectonic phase (ca. 280 Ma). Although the chemically active (oxidizing?) fluids expelled from the orogen as it developed in the early Permian is a viable explanation for the Sanrafaelic remagnetization, the role of the nearly coeval magmatism in Precordillera and the San Rafael Block remains to be properly evaluated.

  10. Estratigrafía y petrología del sector noreste de sierra de Apas. Provincia del Chubut Stratigraphy and petrology of the Northeastern sector of Sierra de Apas. Chubut Province

    OpenAIRE

    M. Remesal; F.M. Salani; G.I. Massaferro; M.E. Cerredo

    2004-01-01

    La sierra de Apas, ubicada entre las provincias de Rio Negro y Chubut, forma parte del magmatismo de intraplaca emplazado durante el Paleogeno-Neógeno en el norte de la Patagonia extrandina. En el sector noreste se ha definido una estratigrafía integrada por: traquitas oscuras, flujos piroclásticos, traquitas claras, domos riolíticos y basaltos porfíricos y afíricos. Las traquitas oscuras, son relativamente más antiguas, tienen bajo porcentaje de fenocristales, y clasifican como traquitas- be...

  11. Estratigrafía y petrología del sector noreste de sierra de Apas. Provincia del Chubut

    OpenAIRE

    M. Remesal; F.M. Salani; G.I. Massaferro; M.E. Cerredo

    2004-01-01

    La sierra de Apas, ubicada entre las provincias de Rio Negro y Chubut, forma parte del magmatismo de intraplaca emplazado durante el Paleogeno-Neógeno en el norte de la Patagonia extrandina. En el sector noreste se ha definido una estratigrafía integrada por: traquitas oscuras, flujos piroclásticos, traquitas claras, domos riolíticos y basaltos porfíricos y afíricos. Las traquitas oscuras, son relativamente más antiguas, tienen bajo porcentaje de fenocristales, y clasifican como traquitas- be...

  12. Salud bucal y nutrición en cazadores-recolectores del nordeste del Chubut en el Holoceno

    OpenAIRE

    Novellino, Paula; Gómez Otero, Julieta

    2009-01-01

    Investigaciones arqueológicas llevadas a cabo en Patagonia centro-septentrional (costa atlántica y valle inferior del río Chubut) demostraron que el área fue utilizada desde por lo menos el Holoceno medio. Estudios de isótopos estables ( 13C y 15N) en muestras óseas humanas indican que los cazadores-recolectores que la ocuparon mantuvieron una dieta mixta que combinó el consumo de guanacos, plantas terrestres, moluscos y pinnípedos. No obstante esta tendencia general, se observó variabilidad ...

  13. en Argentina

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    Patricia Davolos

    2005-01-01

    Full Text Available Hacia finales de la década pasada comienza a cobrar dinamismo la protesta social en Argentina como respuesta a la crisis resultante de las políticas neoliberales que dominaron la escena nacional en los noventa. En ese contexto, grupos de trabajadores ocupan empresas en riesgo de cerrar sus puertas, organizándose para operarlas en forma autogestionaria. Aquí se estudian las características del mercado de trabajo, así como las tradiciones y los recursos que permitieron a los trabajadores llevar adelante este tipo de acciones, delineando distintas trayectorias que otorgaron inteligibilidad al fenómeno analizado.

  14. Monitorieo de DDI en el noreste de la provincia de Chubut (2004

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    G. S. Zarza

    2008-06-01

    Full Text Available Un total de 668 alumnos de escolaridad primaria, de ambos sexos, fue estudiado en este monitoreo de bocio endémico en dos ciudades del noreste de la provincia de Chubut: Puerto Madryn (493 niños y Trelew (175 niños. La edad de los escolares osciló entre 5 y 15 años. La palpación tiroidea fue hecha por el conjunto de los médicos participantes. Sin embargo, con la finalidad de aunar criterios con lo realizado previamente (1-18, se tomó como única referencia la palpación de H. N., que se llevó a cabo en la totalidad de los niños estudiados. La definición del grado de bocio fue similar a la utilizada en los otros relevamientos (1. Se determinó la yoduria en muestras casuales de orina emitidas por los niños una vez que fueron palpados (161 de Puerto Madryn y 139 de Trelew. Se midió el contenido de yodo en 467 muestras de sal de consumo hogareño de Puerto Madryn y en 161 de Trelew. El examen palpatorio de los niños reveló la existencia de bocio grado 1 solamente. La prevalencia de bocio encontrada fue de 3,9 % en Puerto Madryn y de 2,9 % en Trelew. Los niveles de yoduria alcanzaron, en Puerto Madryn, una media de 188±95,8(DS μg/L y una mediana de 171 μg/L, al tiempo que en Trelew la media fue de 245±102,3 μg/L y la mediana de 196 μg/L. El contenido de yodo de las sales que aportaron los alumnos, si bien varió según la marca de sal utilizada, tuvieron un nivel relativamente adecuado de yodo en aquellas de consumo masivo. De esta manera, observamos que en la localidad de Puerto Madryn el promedio de yodo en la sal, tomada en conjunto, fue de 32,0 ± 10,9 mg/Kg, mientras que para Trelew fue de 31,5 ± 8,5 mg/Kg. Al analizar las concentraciones de yodo <15 mg/Kg, observamos que fue del 9 % en Puerto Madryn y del 5 % en Trelew. Teniendo en cuenta la línea de corte del 10 % que fija el ICCIDD (19 como valor óptimo, podemos observar que la situación de ambas poblaciones es satisfactoria. Concluimos que en estas dos ciudades del

  15. Geología de la quebrada Honda, cuenca del lago La Plata, Chubut

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    G.V. Depine

    2004-12-01

    Full Text Available La quebrada Honda, situada en el sur de la cuenca de los lagos La Plata y Fontana, en la provincia de Chubut, presenta una columna estratigráfica que comienza en el Jurásico superior con rocas calcoalcalinas de arco volcánico intermedias a ácidas de la Formación Lago La Plata. Las rocas sedimentarias que rellenan la cuenca de intraarco neocomiana corresponden al Grupo Coyhaique, dentro del cual se encuentran las Formaciones Tres Lagunas y Katterfeld, que se ubican dentro de un modelo paleoambiental como cortejo sedimentario de borde de plataforma, sucedido por un cortejo transgresivo, cuya edad es acotada al Hauteriviano inferior, debido al hallazgo de restos de Favrella americana en pelitas de la Formación Katterfeld. Vinculados con la extensión que da lugar a la cuenca se registran los cuerpos hipabisales calcoalcalinos básicos del Gabro Quebrada Honda y se los relaciona con un volcanismo de características más evolucionadas de la Formación Don Rueda, de edad neocomiana tardía. Si bien este magmatismo de arco volcánico es subaéreo, presenta indicios de interacción con cuerpos de agua por lo que corrobora la concomitancia de este evento con la sedimentación póstuma de Grupo Coyhaique. Se registra un evento de inversión tectónica que tendría una edad máxima de 80 Ma.

  16. La identidad en la encrucijada: la comunidad galesa del Chubut y las conmemoraciones del Centenario y Bicentenario de la Revolución de Mayo

    Directory of Open Access Journals (Sweden)

    Geraldine Lublin

    2013-12-01

    Full Text Available El presente artículo se propone rastrear a grandes rasgos la relación ―especial‖ entre el estado nacional argentino y, a partir de 1958, la provincia de Chubut por una parte y los colonos galeses que se establecieron en Chubut desde 1865 y sus descendientes por otra, a través del análisis de la posición de la colectividad galesa del Chubut en dos momentos históricos destacados: el Centenario y el Bicentenario de la Revolución de Mayo (1810. Al corresponderse el perfil de los galeses con la idea de poblaciones "civilizadas" que las autoridades pretendían impulsar en desmedro de los legítimos pobladores originales, estas políticas dieron lugar a una fuerte identificación histórica de la Provincia de Chubut con la llamada "gesta galesa". Se generó asimismo una peculiar dinámica triangular de las relaciones estatales, cuya evolución a través del tiempo ha desembocado en la actual promoción de la identidad chubutense como el resultado de la fusión de las culturas de los tehuelches originarios y los colonos galeses.

  17. Jurassic tetrapods and flora of Cañadón Asfalto Formation in Cerro Cóndor area, Chubut Province Flora y tetrápodos del Jurásico de la Formación Cañadón Asfalto en el área de Cerro Cóndor, provincia de Chubut

    Directory of Open Access Journals (Sweden)

    Ignacio H. Escapa

    2008-12-01

    Full Text Available The plant and tetrapod fossil record of the Cañadón Asfalto Formation (Middle to Late Jurassic found in Cerro Cóndor area (Chubut Province is summarized here. The flora is dominated by conifers (Araucariaceae, Cupressaceae sensu lato but also includes ferns and equisetaleans. The tetrapod fauna is composed of dinosaur taxa described in the 70's as well as other remains recently described and other vertebrate groups such as amphibians, turtles, and mammals. The amphibian remains have been interpreted as representatives of a new species of Notobatrachus, considered one of the most basal members of the anuran lineage. Similarly, turtle remains have been recently recognized as a new species of basal turtle, bringing valuable information about the early evolution of this group. The dinosaur remains are largely dominated by saurischian taxa, represented by basal forms of Eusauropoda and Tetanurae. In addition, three different mammalian species have been identified and considered as early representatives of an endemic Gondwanan mammalian fauna. The fossil record of this formation represents the most completely known biota from the continental Middle to Late Jurassic of the Southern Hemisphere and one of the most complete of the entire world.Se resume brevemente el registro de plantas y tetrápodos fósiles de la Formación Cañadón Asfalto (Jurásico Medio a Superior en el área de Cerro Cóndor, provincia de Chubut. La flora está conformada por coníferas de las familias Araucariaceae y Cupressaceae sensu lato dominando la asociación, la cual se completa con helechos y equisetales en proporciones menores. La fauna de tetrápodos se compone por los clásicos dinosaurios descriptos en los 70`s, a los que se suman nuevos restos pertenecientes a este grupo, así como anfibios, tortugas y mamíferos coleccionados en la última década. Los restos de anfibios han sido interpretados como representantes de una nueva especie de Notobatrachus, considerado

  18. Patagonia Argentina

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    A.J. Acuña

    2008-01-01

    Full Text Available La zona central de la Patagonia, Argentina, se encuentra sometida a explotación petrolera y sus suelos se caracterizan por ser deficientes en nitrógeno. Esto causaría un efecto negativo en los procesos de atenuación natural que se desarrollan en los suelos contaminados con hidrocarburos. El objeto de este estudio fue determinar cual es el efecto de la deficiencia de nitrógeno sobre la biodegradación de los hidrocarburos en un suelo de la Patagonia, Argentina. Se trabajó con tres microcosmos a los que se les realizó tratamientos diferentes. En uno se monitoreo la atenuación natural del sistema, en otro la fertilización con nitrógeno (N, fósforo (P y potasio (K, y en el último la fertilización con P y K. Durante el seguimiento se determinaron mineralización y medición de hidrocarburos, y se realizaron recuentos bacterianos y determinación de nitrato, nitrito y amonio. Los resultados indican que es posible la biodegradación de hidrocarburos en el suelo deficiente de nitrógeno de la Patagonia estudiado en tiempos mas prolongados que en aquellos que se realiza una fertilización con nitrógeno. El nitrógeno necesario para el proceso sería obtenido por los microorganismos del suelo por fijación biológica.

  19. Borrelia burgdorferi sensu lato in Ixodes cf. neuquenensis and Ixodes sigelos ticks from the Patagonian region of Argentina.

    Science.gov (United States)

    Sebastian, Patrick S; Bottero, Maria Noelia Saracho; Carvalho, Luis; Mackenstedt, Ute; Lareschi, Marcela; Venzal, José M; Nava, Santiago

    2016-10-01

    This study was conducted to detect Borrelia burgdorferi sensu lato infection in ixodid ticks from the Patagonia region in the south of Argentina. Therefore, ticks were collected on rodents in the provinces of Chubut, Río Negro and Santa Cruz. These ticks were identified as nymphs of Ixodes cf. neuquenensis and Ixodes sigelos. The B. burgdorferi s.l. infection was tested by a battery of PCR methods targeting the gene flagellin (fla) and the rrfA-rrlB intergenic spacer region (IGS). Three pools of I. sigelos nymphs from Chubut and Santa Cruz provinces as well as one pool of I. cf. neuquenensis nymphs from Río Negro province were tested positive in the fla-PCR. The samples of I. sigelos were also positive for the IGS-PCR. Phylogenetically, the haplotypes found in the positive ticks belong to the B. burgdorferi s.l. complex, and they were closely related to Borrelia chilensis, a genospecies isolated from Ixodes stilesi in Chile. The pathogenic relevance of the Borrelia genospecies detected in both I. neuquenensis and I. sigelos is unknown. PMID:27372197

  20. Las Andesitas Estrechura del Complejo Volcánico Piroclástico del Río Chubut Medio (Paleoceno-Eoceno Medio The Estrechura Andesites from the Middle Rio Chubut Volcanic-Pyroclastic Complex (Paleocene-Middle Eocene

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    E. Aragón

    2004-12-01

    Full Text Available Las Andesitas Estrechura muestran una tendencia evolutiva basalto-traquita del tipo toleítico transicional. En esta secuencia la inmisciblidad líquida está presente desde los basaltos hasta las traquitas. Esto permite establecer que: los basaltos y traquibasaltos representan el magma que se está fraccionando; las traquiandesitas son la mezcla de magma basáltico enriquecido con líquido inmiscible y las traquitas son el líquido inmiscible alojado en el techo de la cámara magmática. Aunque estos basaltos toleíticos transicionales sean pobres en agua, el enriquecimiento en volátiles por fraccionamiento en una de las fases inmiscibles permite la extrusión esporádica de ignimbritas que arrastran restos de magma sin vesicular y perliticos en los núcleos de los pómez. La profundidad de emplazamiento de la cámara magmática se estima próxima a los 4,5 kilómetros.The Estrechura Andesites show a basalt-trachyte tholeiitic transitional trend. Liquid immiscibility is present from basalts to trachytes. Thus, basalts and trachybasalts are interpreted as the fractionating magmas; the trachyandesites are the enriched (mix residual magma - immiscible liquid; and the trachytes are the segregated immiscible liquid at the magma chamber top. Even though it is a water poor system, the concentration of volatile in one of the immiscible liquids enables few ignimbrite extrusions that carry non-vesiculated perlitic magma blebs in pumice core. The depth of the magma chamber emplacement is estimated to be close to the 4,5 kilometers.

  1. Crecimiento y desarrollo de una población infanto juvenil de la provincia de Chubut

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    Torres, María Fernanda

    1999-01-01

    Full Text Available La diferenciación y adaptación ontogenética son temas centrales en antropología biológica por cuanto su modificación puede afectar la dinámica evolutiva poblacional. Numerosos factores estresantes actúan provocando variación en la expresión fenotípica y nuevas respuestas adaptativas. En el presente trabajo se determinó el crecimiento de niños de 5 a 14 años contrastando con estándares internacionales. La muestra se constituyó con 473 escolares de Río Mayo (Chubut, de ambos sexos. Se relevaron y calcularon variables corporales. Para la comparación con los estándares los datos fueron convertidos a escores z y contrastados además mediante pruebas de Wilcoxon. La estadística empleada consistió en análisis multifactorial de la varianza y pruebas de LSD. Si bien hubo crecimiento en todos los grupos etáreos analizados, los valores obtenidos difirieron significativamente de los correspondientes al estándar. En varones, a excepción del pliegue subescapular, que presentó escores z superiores al estándar las restantes variables se ubicaron entre 0 y -2 DS, siendo más afectadas las estaturas total y sentado y el área muscular. En mujeres, se observó una situación similar a excepción del área adiposa y la masa corporal, con valores mayores al estándar. Estos resultados evidencian la presencia de una desnutrición que abarca toda la franja etárea. La disminución de la talla y el aumento del tejido adiposo constituyen sin duda, respuestas adaptativas que permiten la supervivencia de los individuos frente a la injuria nutricional.

  2. Indigenous identity and textiles: an economic policy strategies in the province of Chubut La identidad indígena y sus textiles: estrategias de una política económica en la provincia de Chubut

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    Patricia María Méndez

    2010-01-01

    Full Text Available From the conception of the identity of individuals and of the groups as an elaboration, arises that the current indigenous identity employed by the state in the province of Chubut is functional to a policy which aims to prevent the emigration of the few people in rural areas of the province. It affirms that such a strategy is not new and that in the past other versions of this identity have also been useful to legitimate power projects. Through ethnographic and historical work, we explore some physical and social characteristics of rural areas of that province, some provincial regulations of government agencies, and certain attributes, preterits and present, of the indigenous identity employed by the state and of one of its symbols, Mapuche tissues. Laterally it refers in what way this identity is considered by some identified.A partir de la concepción de la identidad de las personas y de los grupos como una elaboración, se plantea que la actual identidad indígena empleada por el Estado en la provincia de Chubut resulta funcional a una política que pretende evitar la emigración de los escasos pobladores de las zonas rurales de la provincia. Se afirma que tal estrategia no es novedosa y que en el pasado otras versiones de esa identidad también han resultado útiles a los proyectos del poder legítimo. Mediante un trabajo etnográfico e histórico, se analizan algunas características físicas y sociales de la zona rural de esa provincia, algunas normativas de organismos gubernamentales provinciales, y ciertos atributos pretéritos y actuales de la identidad indígena empleada por el Estado y de uno de sus símbolos, los tejidos mapuches. Lateralmente se refiere de qué manera esa identidad es considerada por algunos identificados.

  3. A Very Active Sprite-Producing Storm Observed Over Argentina

    OpenAIRE

    Thomas, J.N.; Taylor, Michael J.; Pautet, D.; Bailey, M.; Solorzano, N. N.; R. H. Holzworth; McCarthy, M.P.; Kokorowski, M.; Sao Sabbas, F.; Pinto Jr., O.; Cummer, S. A.; Jaugey, N.; Li, J.; Schuch, N. J.

    2007-01-01

    During the night of 22–23 February 2006, more than 400 middle- atmospheric optical discharges were observed above one large thunderstorm system over northeastern Argentina. These transient luminous events (TLEs) were imaged during the Southern Brazil Sprite Campaign, the first campaign to focus on TLEs over southern Brazil, northeastern Argentina, and Uruguay. All of the TLEs were imaged from the Brazilian Southern Space Observatory (SSO) near Santa Maria, which is nearly in the center of the...

  4. La Formación Continua de los docentes alfabetizadores: la evolución de sus planteamientos didácticos de atención a la diversidad en el aula. Análisis de un colectivo docente de la Escuela Municipal 3 de Puerto Madryn, Patagonia Argentina

    OpenAIRE

    Contín, Silvia

    2006-01-01

    Consultable des del TDX Títol obtingut de la portada digitalitzada Esta tesis doctoral estudia desde un paradigma naturalista interpretativo la evolución del pensamiento de un grupo de profesores alfabetizadores que desarrollan su tarea en una escuela urbano marginal de la ciudad de Puerto Madryn, Chubut, Patagonia Argentina. Cuenta con la dirección académica del Dr Arturo Noguerol Rodrigo, del departamento de didáctica de la Lengua, la Literatura y las Ciencias Sociales de la Universid...

  5. Juan Valentin: un gelogo que supo resumir la geologa argentina

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    Florencio Gilberto Aceolaza

    2011-09-01

    Full Text Available Juan Valentin fue un destacado gelogo alemn que arrib a nuestra patria en 1894 para integrarse a los equipos que entonces desarrollaban investigaciones desde el Museo de La Plata y el Museo Nacional de Buenos Aires. Su trabajo lo llev, inicialmente, a estudiar las sierras de Buenos Aires y luego tambin lo hizo en Crdoba, San Luis, Salta y Jujuy. Fue grande su actividad, motivo por el cual, se lo incorpor a la Sociedad Cientfica Argentina asumiendo la revisin y compaginacin de los Anales que en ese tiempo editaba la mencionada institucin. Esta actividad ms el conocimiento de campo logrado, lo llev a confeccionar un extenso artculo donde describi la geologa de la Argentina, el cual fue agregado a la edicin del Segundo Censo Nacional. A este trabajo se lo considera una importante sntesis sobre la constitucin geolgica del pas. Entusiasmado con el apoyo que vena logrando planific un programa de investigacin para desarrollar en el norte de la Patagonia e incrementar el conocimiento de la estratigrafa regional. As fue que, en octubre de en 1897, se dirigi a Puerto Madryn donde llev adelante sus primeros trabajos en el valle del ro Chubut y la zona de Cabo Raso. Revisando afloramientos en las cercanas de Aguada de Reyes muri en un fatal accidente, como dice la crnica, con sus bolsillos repletos de los fsiles que haba coleccionado. Haca poco ms de dos aos que se desempeaba en el pas y contaba con 30 aos recin cumplidos. La mencin histrica narra que su cuerpo fue sepultado en la ciudad de Rawson.

  6. Distribution and hybridization between Culex pipiens and Culex quinquefasciatus (Diptera: Culicidae in Argentina

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    Walter R. Almirón

    1995-08-01

    Full Text Available To better undesrtand the distribution of Culex pipiens and Cx. quinquefasciatus in Argentina, samples were collected from six localities situated in a North-South line from Castelli (Chaco Province to Puerto Madryn (Chubut Province. Identification was based on the morphology of male genitalia. Only Cx. quinquefasciatus was found in Castelli and Esperanza, while in Rosario, 95.3% belonged to this species and 4.7% represented hybrid forms. Southern samples included only Cx. pipiens. With the purpose of verfying if Cx. pipiens and Cx. quinquefasciatus hybridize, different crosses between the two species were perfomed. All crosses produced viable egg rafts. Hatching ranged from 70 to 100%, except in one cross, female Cx. pipiens x male Cx. quinquefasciatus, where a high incompatibility was observed (11.1%hatch. The F1 hybrids obtained all crosses were fertile. The finding of hybrid forms in nature can be interpreted as evidence for subspecific status of Cx. pipiens and Cx. quinquefasciatus in Argentina.

  7. Variación regional del crecimiento y estado nutricional: Chubut

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    Dahinten, Silvia Lucrecia

    2005-01-01

    Full Text Available La descripción y el análisis del crecimiento humano han ocupado gran parte de las investigaciones de antropobiólogos, médicos y biólogos humanos, entre otros. En Argentina si bien se dispone de información de prevalencias de malnutrición, existe dificultad en la comparación debido a que en la mayor parte de los casos hay disparidad en las técnicas y/o metodologías empleadas. El objetivo del presente trabajo es analizar el estado nutricional de la población de Puerto Madryn a fin de disponer de elementos diagnósticos que permitan su contrastación con otras provincias argentinas. Peso corporal (kg. y talla (cm. fueron medidos en una muestra de 3042 niños y adolescentes (1575 varones y 1467 mujeres durante 2003- 2004. Con los datos obtenidos se analizaron los indicadores Peso/Edad (P/E, Peso/Talla (P/T, Talla/Edad (T/E e Indice de Masa Corporal (IMC. La prevalencia de cada indicador se calculó siguiendo los puntos de corte recomendados por la OMS: para bajo P/E, T/E y P/T se utilizó el percentilo 5, para sobrepeso (S el intervalo percentilar 85-95 (>P85 IMC P95. Los resultados obtenidos indicaron las siguientes prevalencias totales: Desnutrición: 5.6%, Bajo P/E: 4.7%, Baja T/E: 10.2.% Bajo P/T: 1.8%, S: 16.2% y O: 9.1%. Los resultados obtenidos indican niveles moderados de desnutrición, siendo altos los porcentajes de sobrepeso y obesidad.

  8. Argentina Welcomes Chinese Enterprises

    Institute of Scientific and Technical Information of China (English)

    2010-01-01

    @@ On July 13,China-Argentina Entrepreneur Luncheon Meeting was held in Beijing.Cristina Fernandez de Kirchner,President of Argentina,Hui Liangyu,Vice Prime Minister of China and Wan Jifei,President of CCPIT attended the meeting.

  9. Eupsophus calcaratus (Anura, Leptodactilydae: ampliación de su distribución geográfica y hábitats en Argentina

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    Úbeda, Carmen A.

    2000-03-01

    Full Text Available Argentina, Provincia de Chubut, Departamento de Futaleufú: 1 Parque Nacional Los Alerces, margen NE del Lago Menéndez, proximidad desembocadura Arroyo Zanjón Hondo, (42°42' S, 71°41' O, 520 m snm, 14/febrero/1997. Un ejemplar macho adulto, colector: Carmen A. MACN 37034. 2 Parque Nacional Los Alerces, Arroyo Torrecillas, Lago Menéndez, 18/enero/1972. Colector: Monaglio. MACN 29946. 3 Parque Nacional Los Alerces, Lago Futalaufquen, 25/abril/1969. Colector: Foerster. CENAI 7163. 4 Parque Nacional Los Alerces, margen norte del Lago 1 [actualmente parte del Lago Amutui Quimei], (43°01' S, 71°46' O, 1-2/1971. Colectores: Monadio, Garrido y Bianchini. MACN 29723/28.

  10. El volcanismo del complejo Marifil en Arroyo Verde, vertiente suroriental del Macizo de Somún Cura, Chubut

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    Marcelo J Márquez

    2010-05-01

    Full Text Available Se describen en este trabajo las facies volcánicas pertenecientes al Complejo Marifil que afloran en la localidad de Arroyo Verde, vertiente suroriental del macizo de Somún Cura, provincia del Chubut. Se discriminan facies de ignimbritas riolíticas, brechas piroclásticas, domos y domos vítreos traquíticos y diques riolíticos. Las relaciones de campo indican que las ignimbritas fueron el primer evento eruptivo que se alternaron con esporádicas coladas de bloques y cenizas. Luego se produjo la intrusión de las facies dómicas y por último la de los diques riolíticos. Las facies descriptas tienen composiciones que varían entre riolitas y traquitas con altos contenidos de K, característicos de las rocas pertenecientes a este complejo. Teniendo en cuenta las características observadas se propone un mecanismo fisural de erupción en esta localidad.

  11. Estratigrafía, análisis de facies y paleoambientes de la formación cañadón asfalto en el depocentro jurásico cerro Cóndor, provincia del Chubut Stratigraphy, facies analysis and paleoenvironments of the Cañadón Asfalto Formation, Jurassic Cerro Cóndor depocenter, Chubut province

    Directory of Open Access Journals (Sweden)

    Nora Cabaleri

    2010-05-01

    most complete stratigraphic sequence of the continental Jurassic of the Cañadón Asfalto basin and southern South America. It is situated in extraandean Patagonia, on both sides of the middle Chubut river valley. The sedimentation in this pull-apart basin begins early in the Middle Jurassic, accompanied by effusions of olivinic basalts. The prevailing lacustrine deposits are characterized by carbonatic and siliciclastic facies associations, interfingering with volcanic deposits grading from lavic in the base to predominantly pyroclastic towards the top. The facies evolution from north to south is described, embracing the sections of farm El Torito and the canyons of Los Loros, Las Chacritas, Carrizal, Asfalto and Lahuincó. The carbonatic facies/microfacies are represented by mudstones, wackestones, packstones, grainstones and microbialitic limestones, characteristic of littoral/marginal and palustrine environments. In the Cañadón Asfalto Formation are distinguished a lower member (Las Chacritas composed by limestones, shales, sandstones and conglomerates intercalated with olivinic basalts, and an upper member (Puesto Almada composed by tuffs, tuffites, shales and sandstones. The first is bearing a palynologic assemblage of Bajocian-Bathonian age and the second dinosaurs of Tithonian age. The stratigraphic sections of both members of the formation are described and illustrated at their type localities cañadón Las Chacritas and farm El Torito and the paleoenvironments of the depocenter, from the Aalenian to the Tithonian are described and illustrated. The age of the Puesto Almada Member at its type locality was obtained by radiometric dating (K/Ar of biotites from a thin layer of volcanic tuff (147.1 + 3.3 Ma, Tithonian from the upper part of the unit.

  12. Estratigrafía y petrología del sector noreste de sierra de Apas. Provincia del Chubut Stratigraphy and petrology of the Northeastern sector of Sierra de Apas. Chubut Province

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    M. Remesal

    2004-12-01

    Full Text Available La sierra de Apas, ubicada entre las provincias de Rio Negro y Chubut, forma parte del magmatismo de intraplaca emplazado durante el Paleogeno-Neógeno en el norte de la Patagonia extrandina. En el sector noreste se ha definido una estratigrafía integrada por: traquitas oscuras, flujos piroclásticos, traquitas claras, domos riolíticos y basaltos porfíricos y afíricos. Las traquitas oscuras, son relativamente más antiguas, tienen bajo porcentaje de fenocristales, y clasifican como traquitas- benmoreítas. Las traquitas claras son porfíricas, y clasifican como comenditas. Su ubicación estratigráfica es confirmada por una edad K/Ar de 19 ± 2 Ma. Los flujos piroclásticos son predominantemente vítreos, cubren a las traquitas oscuras y tienen composiciones traquiandesíticas. La petrografía y geoquímica establecen una estrecha relación con las traquitas claras. El único cuerpo dómico en el área es el cerro Colorado, cuya composición corresponde a una riolita peralcalina ó comendita; una edad K/Ar de 24 ± 1 Ma establece por primera vez su relación temporal. La unidad efusiva más joven corresponde a lavas basálticas, agrupadas en afíricas y porfíricas. Se propone designar a las primeras como basaltos olivínicos transicionales en tanto que los basaltos porfíricos se subdividen en basaltos olivínicos alcalinos y hawaiitas. Los datos estratigráficos y geoquímicos sugieren que la asociación volcánica estudiada es el resultado de al menos dos etapas evolutivas. Una de ellas incluye los basaltos, traquitas claras, flujos claros y comenditas que muestran un patrón de cristalización fraccionada. Las traquitas oscuras, más viejas, corresponderían a otro estadio evolutivo.The volcanic building of Sierra de Apas (located on the limit between the Rio Negro and Chubut provinces is part of the Paleogene-Neogene intraplate magmatism of the northern Extrandean Patagonia. This contribution is focused on the northeastern of the Sierra

  13. Astronomy in Argentina

    CERN Document Server

    Muriel, Hernán

    2013-01-01

    This article analyses the current state of Astronomy in Argentina and describes its origins. We briefly describe the institutions where astronomical research takes place, the observational facilities available, the training of staff and professionals, and the role of the institutions in scientific promotion. We also discuss the outreach of Astronomy towards the general public, as well as amateur activities. The article ends with an analysis of the future prospects of astronomy in Argentina.

  14. El volcanismo del complejo Marifil en Arroyo Verde, vertiente suroriental del Macizo de Somún Cura, Chubut The volcanism of the Marifil Complex in Arroyo Verde, Southeastern slope of the Somun Cura Massif, Chubut

    Directory of Open Access Journals (Sweden)

    Marcelo J Márquez

    2010-05-01

    Full Text Available Se describen en este trabajo las facies volcánicas pertenecientes al Complejo Marifil que afloran en la localidad de Arroyo Verde, vertiente suroriental del macizo de Somún Cura, provincia del Chubut. Se discriminan facies de ignimbritas riolíticas, brechas piroclásticas, domos y domos vítreos traquíticos y diques riolíticos. Las relaciones de campo indican que las ignimbritas fueron el primer evento eruptivo que se alternaron con esporádicas coladas de bloques y cenizas. Luego se produjo la intrusión de las facies dómicas y por último la de los diques riolíticos. Las facies descriptas tienen composiciones que varían entre riolitas y traquitas con altos contenidos de K, característicos de las rocas pertenecientes a este complejo. Teniendo en cuenta las características observadas se propone un mecanismo fisural de erupción en esta localidad.Marifil Complex volcanic facies that crop out in the locality of Arroyo Verde, SE slope of Macizo de Somún Cura, are described here. Rhyolitic ignimbrite facies, pyroclastic breccias, traquitic domes and vitreous domes, and rhyolitic dikes are distinguished. Field relationships point out the ignimbrites as the first effusive event. Some sporadically block and ash flows are intercalated within the ignimbrites. These deposits were intruded by domes; the latest event is represented by the intrusion of the rhyolitic dykes. Chemical composition of these rocks varies between high K rhyolites and traquites, which correspond to typical characteristics of the Marifil Complex rocks. The observations allow proposing a fissural mechanism of eruption for these facies in this locality.

  15. Los dueños del rebaño. Origen étnico y capacidad ovina en Chubut

    Directory of Open Access Journals (Sweden)

    Fernando Coronato

    2015-04-01

    Full Text Available Continuando la línea de investigación inaugurada por Elsa Barbería en “Los dueños de la tierra” en Santa Cruz, avanzamos sobre la distribución de las diferentes comunidades étnicas y su parte en el poblamiento patagónico a partir del análisis cartográfico diacrónico. Para el último período del proceso utilizamos la base de datos del catastro del Chubut (2006 para evaluar « la capacidad ganadera» (entendida como la acumulación de hectáreas y ovinos de cada comunidad étnica. Estas fueron asociadas a los grupos patronímicos identificados previamente, a saber: alemán, bóer, británico (inglés y escocés, español, francés, galés, italiano, mapuche, polaco, tehuelche y vasco. Las Sociedades Anónimas se consideraron como un grupo aparte. Del tratamiento estadístico de los datos se obtuvo la superficie media de las (más de 2000 propiedades, la talla media del rebaño y la cosecha de lana de cada grupo, detectándose diferencias significativas entre algunos de ellos. Las Sociedades Anónimas se despegan solitarias hacia los latifundios, mientras que en el extremo opuesto se ubican los grupos aborígenes, arrinconados en los minifundios y la subsistencia. Estos datos relativamente actuales muestran la continuidad de los procesos identificados en el análisis catastral de etapas previas del poblamiento que se remontan a más de un siglo.

  16. Helosis (Balanophoraceae en Argentina Helosis (Balanophoraceae in Argentina

    Directory of Open Access Journals (Sweden)

    José Luis Fontana

    2006-07-01

    Full Text Available Se cita por primera vez para Argentina Helosis cayennensis (Swartz Sprengel var. cayennensis en base a colecciones hechas por los autores en la Isla argentina de Apipé Grande, Ituzaingó, provincia de Corrientes. Se describe e ilustra la especie, el desarrollo de la planta y su estado de conservación. Esta cita de Helosis corresponde a un género nuevo para la flora argentina.Helosis cayennensis var. cayennensis is reported for the first time for Argentina. The species is described and ilustrated. Developement and ecology are also given. Helosis is also a new generic record for Argentina.

  17. Evolución geomorfológica y cronología relativa de los niveles aterrazados del área adyacente a la desembocadura del río Chubut al Atlántico (Provincia del Chubut

    Directory of Open Access Journals (Sweden)

    Emilio F González Díaz

    2011-12-01

    Full Text Available Se describe un antiguo abanico aluvial y su posterior evolución. Las acumulaciones del antiguo abanico aluvial han sido interpretadas como la continuidad septentrional de los rodados patagónicos de la meseta Montemayor, una propuesta que es rebatida. La base metodológica del reconocimiento del antiguo abanico aluvial y su distinción genética y temporal, la constituyó el análisis geomórfico y la evaluación altimétrica. Su asignación temporal es un problema aún no resuelto. La metodología condujo a diferenciar tres sistemas geomórficos o niveles, relacionados con sucesivos episodios de agradación y erosión, los que ocupan posiciones cada vez más inferiores, coincidiendo con el complejo paleodrenaje del antiguo abanico aluvial. Sus desarrollos sucesivos son vinculados con protoríos Chubut 1, 2, 3 propuestos y el correspondiente a un paleovalle Simpson. Pese a las limitaciones apuntadas, se propone que el modelo evolutivo del antiguo abanico aluvial responde a una estructura de corte y relleno, que avalaría una composición poliformacional del antiguo abanico aluvial y además la migración progresiva del paleodrenaje hacia el sur. Un análisis geomorfológico y altimétrico diferenció un nivel superior integrado por restos de tres planicies (Pa, Pm y Pb, un nivel medio con dos terrazas (T1 y T2 y un complejo nivel inferior de cinco terrazas (T3, T4, T5 T6 y T7. Evidencias relícticas de los paleodrenajes propuestos son los paleovalles Estancia Paz y Don Morgan-Saraza del nivel superior. La edad del antiguo abanico aluvial basada en la evolución geomórfica del área de estudio, es tentativamente asignada a un incierto lapso del Pleistoceno superior entre el interglacial Sangamon y fines de la última glaciación.

  18. Estratigrafía y petrología del sector noreste de sierra de Apas. Provincia del Chubut

    Directory of Open Access Journals (Sweden)

    M. Remesal

    2004-12-01

    Full Text Available La sierra de Apas, ubicada entre las provincias de Rio Negro y Chubut, forma parte del magmatismo de intraplaca emplazado durante el Paleogeno-Neógeno en el norte de la Patagonia extrandina. En el sector noreste se ha definido una estratigrafía integrada por: traquitas oscuras, flujos piroclásticos, traquitas claras, domos riolíticos y basaltos porfíricos y afíricos. Las traquitas oscuras, son relativamente más antiguas, tienen bajo porcentaje de fenocristales, y clasifican como traquitas- benmoreítas. Las traquitas claras son porfíricas, y clasifican como comenditas. Su ubicación estratigráfica es confirmada por una edad K/Ar de 19 ± 2 Ma. Los flujos piroclásticos son predominantemente vítreos, cubren a las traquitas oscuras y tienen composiciones traquiandesíticas. La petrografía y geoquímica establecen una estrecha relación con las traquitas claras. El único cuerpo dómico en el área es el cerro Colorado, cuya composición corresponde a una riolita peralcalina ó comendita; una edad K/Ar de 24 ± 1 Ma establece por primera vez su relación temporal. La unidad efusiva más joven corresponde a lavas basálticas, agrupadas en afíricas y porfíricas. Se propone designar a las primeras como basaltos olivínicos transicionales en tanto que los basaltos porfíricos se subdividen en basaltos olivínicos alcalinos y hawaiitas. Los datos estratigráficos y geoquímicos sugieren que la asociación volcánica estudiada es el resultado de al menos dos etapas evolutivas. Una de ellas incluye los basaltos, traquitas claras, flujos claros y comenditas que muestran un patrón de cristalización fraccionada. Las traquitas oscuras, más viejas, corresponderían a otro estadio evolutivo.

  19. Paleosuelos en Cordones litorales de la formación Caleta Valdés, pleistoceno superior, noreste de Chubut

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    Pablo J Bouza

    2014-03-01

    Full Text Available El objetivo de este trabajo es evaluar los cambios climáticos y ecológicos registrados en los paleosuelos de la Formación Caleta Valdés (Pleistoceno superior y determinar las propiedades pedogenéticas que pueden ser utilizadas como indicadores paleopedológicos. El área de estudio se encuentra en el NE de la provincia del Chubut, en el ámbito de la Península Valdés. La estratigrafía superficial presenta tres unidades de sedimentación que fueron alternativamente edafizadas. El paleosuelo más antiguo (3Btkb-3Bkmb, formado en los depósitos gravosos de los cordones pleistocenos, presenta un mayor contenido de Fe pedogenético -presumiblemente hematita - un predominio de esmectitas y menores contenidos de δ13C y de δ18O, lo que indica una mayor proporción de plantas C3 y un clima estacionalmente contrastante de tipo mediterráneo (régimen xérico. Considerando que los cordones se habrían depositado en el MIS 5e, la formación del paleosuelo habría ocurrido durante el final de ese piso isotópico interglacial. Este paleosuelo habría sido erosionado y sepultado por episodios sedimentológicos, posiblemente asociados a los procesos periglaciares de los pisos isotópicos 4-2. Estos depósitos constituyeron -conjuntamente con adiciones eólicas- los materiales parentales de un nuevo suelo que evolucionó a la secuencia de horizontes 2Btb-2Btkb-2Bkb-2Ck durante un lapso de estabilidad ambiental. Este evento pedogenético probablemente esté asociado al lapso más húmedo y con marcada estacionalidad de las precipitaciones, ocurrido durante el Tardiglacial - Holoceno temprano, que fue seguido de un período de mayor sequía y aumento de temperaturas durante el Holoceno medio registrado en la región. El tercer evento pedogenético está representado por las secuencias de horizontes A-C.

  20. Efectos de la instalación de un gasoducto sobre algunas propiedades del suelo superficial y la cobertura vegetal en el NE de Chubut Gas-pipeline installation effects on superficial soil properties and vegetation cover in Northeastern Chubut

    Directory of Open Access Journals (Sweden)

    Esteban Kowaljow

    2008-07-01

    Full Text Available En este trabajo describimos el impacto del tendido de un gasoducto y de la reposición parcial del material removido, sobre algunas propiedades físicas y químicas del suelo y sobre la cobertura vegetal en tres sitios ecológicos del nordeste de Chubut. En cada sitio se identificaron 4 zonas diferentes: zona 1, faja desmontada y compactada por el tránsito de maquinaria pesada; zona 2, faja desmontada, con posterior reposición del suelo y la vegetación removidos; y otras dos zonas correspondientes a la estepa adyacente no disturbada: montículos asociados a arbustos y espacios entre montículos. Los mayores valores de densidad aparente se encontraron en los suelos de la zona 1 y en los del entremontículo (1,43 Mg m-3. La resistencia a la penetración fue significativamente mayor en las zonas 1 y 2, ambas zonas presentaron valores de resistencia a la penetración superiores a 1 MPa. La tasa de infiltración fue mucho mayor en el montículo (261 mm h-1 que en el resto de las zonas. La velocidad de infiltración de la zona 2 (85 mm h-1 fue mayor a la de la zona 1 (35 mm h-1 y el entremontículo (50 mm h-1. Los contenidos de carbono orgánico y nitrógeno de los suelos de las zonas 1 y 2 fueron similares a los del entremontículo y significativamente inferiores a los del montículo, excepto en la zona 2 de uno de los sitios ecológicos. La remoción de la vegetación y el suelo superficial, y el posterior tránsito de maquinaria pesada durante la instalación del gasoducto produjeron un fuerte impacto sobre las propiedades físicas del suelo. La mayor limitación de los suelos disturbados fue su baja capacidad para incorporar agua, derivada principalmente de su elevada compactación y baja porosidad, lo que explicaría en parte la lenta recuperación de la cobertura vegetal en la zona 1. En ninguno de los tres sitios estudiados, la reposición del material removido por la actividad del desmonte significó una medida de recuperación eficaz

  1. Procedencia de areniscas del Grupo Chubut en el área central de la Sierra de San Bernardo. Análisis preliminar Provenance of the Chubut Group Sandstones in the central area of the Sierra de San Bernardo. Preliminary analysis

    Directory of Open Access Journals (Sweden)

    M.A. Tunik

    2004-12-01

    Full Text Available Se llevaron a cabo análisis petrográficos de detalle que permitieron determinar las modas detríticas en areniscas del Grupo Chubut con el fin de inferir el marco tectónico del área de aporte de las mismas. Sobre la base de las muestras estudiadas, se observan características petrográficas distintivas entre areniscas de las Formaciones Matasiete, Castillo y Bajo Barreal. La presencia de trizas dentro de las areniscas de las Formaciones Castillo y Bajo Barreal sugeriría una depositación concomitante con volcanismo de arco activo. El ploteo de las modas detríticas en diagramas de discriminación de ambiente de procedencia mostró una diferenciación entre las unidades del Grupo Chubut. La Formación Matasiete presenta una procedencia de arco magmático no disectado, mientras que las muestras correspondientes a las Formaciones Castillo y Bajo Barreal sugieren una procedencia de arco magmático transicional o disectado. Esto último sumado a la presencia de trizas de caída directa podría explicarse por la migración del arco volcánico hacia el oeste y a la exposición de las raíces del arco volcánico del Cretácico inferior por deformación en la faja plegada concomitante con un volcanismo activo ubicado hacia el oeste de la zona de estudio.Petrographic studies were performed in order to characterize the detrital modes of the Chubut Group sandstones. Matasiete, Castillo and Bajo Barreal Formation showed distinctive petrographic characteristics. The presence of shards on the Castillo and Bajo Barreal Formations suggests that the deposition took place on an active volcanic setting. The detrital modes indicates derivation from three different environments among the Chubut Group. The Matasiete Formation shows a provenance from a non-dissected magmatic arc. Meanwhile, the detrital modes of the Castillo and Bajo Barreal Formations suggest derivation from a transitional to dissected arc. A westward migration of the volcanic arc and the

  2. Relaciones polen-vegetación de algunos taxa de la estepa patagónica (Argentina Pollen-vegetation relationships of some taxa from the Patagonian steppe (Argentina

    Directory of Open Access Journals (Sweden)

    LIDIA S. BURRY

    2001-06-01

    Full Text Available La aplicación de un análisis de regresión lineal simple a datos de lluvia de polen y de vegetación, en una zona de la Patagonia (Provincia de Chubut, Argentina permitió relacionar cuantitativamente los porcentajes de lluvia polínica y de cobertura de la vegetación para los taxa Poaceae, Papilionoideae, tipo Senecio y Mulinum spinosum. Se obtuvo un buen ajuste de las rectas de regresión para cada uno de los taxa considerados, con coeficientes de correlación r de Pearson altos para M. spinosum (0,82 y tipo Senecio (0,81 y coeficientes algo menores en el caso de Poaceae (0,66 y Papilionoideae (0,61. Estas regresiones permitieron inferir la presencia o ausencia de polen regional y el valor predictivo de la presencia de polen en ausencia de la vegetación que lo produce. Al respecto, la lluvia de polen estudiada incluye el aporte regional (excepto Papilionoideae aun cuando M. spinosum tiene una baja contribución. Esta sobrerrepresentación es atribuible al transporte de larga distancia, a través de los vientos que provienen del oeste. Estas relaciones cuantitativas nos permitirán extrapolar cambios vegetacionales pasados en estos taxa a partir de espectros de polen fósil para el área de estudioThe use of simple linear regression to data of pollen rain and vegetation cover in Patagonia (Province of Chubut, Argentina allowed us to develop quantitative relationships between modern pollen rain perecentages and vegetation cover for the taxa Poaceae, Papilionoideae, Senecio type, and Mulinum spinosum. The analysis revealed a good fit of data to regression lines for all taxa, with high Pearson r coefficient values in the case of M. spinosum (0.82 and Senecio type (0.81, and somewhat lower values in the case of Poaceae (0.66 and Papilionoideae (0.61. These regressions allowed us to infer the presence or absence of regional pollen and predict the quantity of pollen in the absence of the vegetation producing it. In this regard, the studied pollen

  3. La depresión del "bajo" del diablo" (NE del Chubut: Una propuesta geomórfica acerca de su origen y su evolución

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    Emilio F González Díaz

    2013-06-01

    Full Text Available El Bajo del Diablo está situado en el NE de Chubut. Se analizan sus geoformas internas y marginales, proponiéndose su génesis por deflación y se presenta un esquema de su evolución, que está íntimamente influenciada por los cambios climáticos cuaternarios. Se carece de datos para establecer con precisión la temporalidad de los hechos. Un protorío Chubut generó un abanico aluvial local ó nivel superior durante el Interglacial Sangamon (± 120.000 años. Su degradación y el desarrollo del nivel medio (T1 y T2 por un prerío Chubut, causó la exposición de un sector del débil sustrato terciario, un núcleo marginado por las resistentes psefitas de los niveles. El establecimiento local de las frías, secas y ventosas condiciones de la Última Glaciación, condujo a una progresiva exhondación por deflación (asociada a meteorización del núcleo, proceso que culminó en una depresión poco profunda y de pendientes suaves (Pfannen. Un húmedo intervalo pluvial, facilitó la formación de un efímero lago en ella. Su progresiva reducción -expresada por cordones litorales en posiciones cada vez más bajas- estuvo motivada por un retorno a las frías y secas condiciones previas. La coetánea reactivación de la deflación, llevó a la consiguiente mayor profundización de la depresión. Durante este proceso, se produjo la exhumación del paleorelieve del basamento regional, compuesto por las volcanitas jurásicas de la Formación Marifil. Finalizado el período glaciario, el proceso fluvial y el de remoción en masa ampliaron más aun la depresión, que hoy aparece caracterizada por abruptas pendientes y mayor profundidad (Wannen. Dos perfiles expresan la relaciones entre las distintas geoformas reconocidas.

  4. Mathematics Education in Argentina

    Science.gov (United States)

    Varsavsky, Cristina; Anaya, Marta

    2009-01-01

    This article gives an overview of the state of mathematics education in Argentina across all levels, in the regional and world contexts. Statistics are drawn from Mercosur and UNESCO data bases, World Education Indicators and various national time-series government reports. Mathematics results in national testing programmes, Programme for…

  5. A lab in Argentina

    Science.gov (United States)

    2016-06-01

    Mauricio Erben, a researcher at the National University of La Plata and the National Scientific and Technical Research Council, talks to Nature Chemistry about his experience of research in Argentina, and how it is inherently linked to the country's political climate.

  6. Albert Einstein visits Argentina

    CERN Document Server

    Gangui, A; Gangui, Alejandro; Ortiz, Eduardo L.

    2005-01-01

    This is a detailed, day by day, account of Albert Einstein's activities, both social and scientific, during his 30-day stay in Argentina in 1925, including his lectures on relativity at the various local universities and his visit to the National Academy of Sciences, as follows from his personal Diary of the trip to South-America and other contemporary documents.

  7. Evaluation of the Cerro Solo nuclear ore, province of Chubut. Geological characteristics of the deposit and of the basin. Pt. 2

    International Nuclear Information System (INIS)

    The Cerro Solo uranium ore deposit, is located 420 km west from Trelew city, Chubut province, in the extra-andean. The geologic environment belongs to the northwest edge portion of the intracratonic San Jorge Gulf Basin. The uraniferous district is named Pichinanes Ridge district. The mineralization lies 25 to 130 m depth, and is hosted by Los Adobes formation aged Aptian-Albian, made up by conglomerates, sandstones, coarse-sandstones and less abundant siltstones and claystones. The Cerro Solo ore deposit that belongs to the sandstone type-uranium occurrences are lenticular or tabular shaped, associated with organic material and pyrite, generally roughly parallel to the bedding (Trend-Type). The uranium minerals are uraninite and coffinite associated with organic material and pyrite, and frequently hematite, goethite, calcite, siderite and barite are observed. (Author)

  8. Helosis (Balanophoraceae) en Argentina Helosis (Balanophoraceae) in Argentina

    OpenAIRE

    José Luis Fontana; Orlando Fabián Popoff

    2006-01-01

    Se cita por primera vez para Argentina Helosis cayennensis (Swartz) Sprengel var. cayennensis en base a colecciones hechas por los autores en la Isla argentina de Apipé Grande, Ituzaingó, provincia de Corrientes. Se describe e ilustra la especie, el desarrollo de la planta y su estado de conservación. Esta cita de Helosis corresponde a un género nuevo para la flora argentina.Helosis cayennensis var. cayennensis is reported for the first time for Argentina. The species is described and ilustra...

  9. Procedencia de areniscas del Grupo Chubut en el área central de la Sierra de San Bernardo. Análisis preliminar

    Directory of Open Access Journals (Sweden)

    M.A. Tunik

    2004-12-01

    Full Text Available Se llevaron a cabo análisis petrográficos de detalle que permitieron determinar las modas detríticas en areniscas del Grupo Chubut con el fin de inferir el marco tectónico del área de aporte de las mismas. Sobre la base de las muestras estudiadas, se observan características petrográficas distintivas entre areniscas de las Formaciones Matasiete, Castillo y Bajo Barreal. La presencia de trizas dentro de las areniscas de las Formaciones Castillo y Bajo Barreal sugeriría una depositación concomitante con volcanismo de arco activo. El ploteo de las modas detríticas en diagramas de discriminación de ambiente de procedencia mostró una diferenciación entre las unidades del Grupo Chubut. La Formación Matasiete presenta una procedencia de arco magmático no disectado, mientras que las muestras correspondientes a las Formaciones Castillo y Bajo Barreal sugieren una procedencia de arco magmático transicional o disectado. Esto último sumado a la presencia de trizas de caída directa podría explicarse por la migración del arco volcánico hacia el oeste y a la exposición de las raíces del arco volcánico del Cretácico inferior por deformación en la faja plegada concomitante con un volcanismo activo ubicado hacia el oeste de la zona de estudio.

  10. Monitoreo ambiental de aguas superficiales y subterráneas, consideración de áreas sensibles, distrito uranífero Pichiñán Este, departamento Paso de Indios, provincia del Chubut

    Directory of Open Access Journals (Sweden)

    Humberto O Nievas

    2013-09-01

    Full Text Available En el ámbito de los estudios ambientales los sitios de localización de pobladores son considerados como áreas sensibles frente a una posible explotación del recurso uranífero. Se analiza la hidroquímica de los alrededores del distrito uranífero Pichiñán Este, sector central de la provincia del Chubut, por medio de un monitoreo que, desde el 2007, se realiza aplicando la metodología de muestreo de la comunidad europea. Se caracteriza la calidad del agua considerando elementos mayoritarios, minoritarios y trazas, estableciendo de esta manera sus potenciales usos. Estos resultados son informados a los pobladores y a la autoridad de control ambiental de la provincia del Chubut. Aunque, en general, la calidad del agua en cada punto de muestreo se mantiene relativamente constante, se observan variaciones naturales en los contenidos químicos.

  11. The Huillin in Argentina

    OpenAIRE

    Chehebar C.

    1986-01-01

    We recommend re-introduction of huillines in Lanin, Puelo and Los Alerces National Parks, through translocations of animals, so as to minimize the risks involved in the present dependence on Nahuel Huapi and Staten Island (as far as we know) for the conservation of the species in Argentina. Also, we recommend careful monitoring and protection of the Nahuel Huapi population and protection of the Staten Island ecosystems.

  12. Psychology In Argentina

    OpenAIRE

    Modesto M. Alonso

    2016-01-01

    A summary on Psychology as science and profession in Argentina is presented. The report includes a historical review on places, criteria and results of psychologists'education, aspects of their professional practices; quantitative data on universities, graduates and students related to sociodemographic variables; characteristics of research activities, publications, legal frameworks and types of institutions where psychologists work. Some distinctive features of Argentine psychology are menti...

  13. DE GESTAS, DE SALVAJES Y DE MÁRTIRES. EL RELATO MAESTRO SOBRE EL FUERTE SAN JOSÉ RECONSIDERADO DESDE LA ARQUEOLOGÍA HISTÓRICA (PENÍNSULA VALDÉS, PCIA. DE CHUBUT, SIGLO XVIII / Savages, Epics and Martyrs. The Master Narrative about San Jose Fort reconside

    Directory of Open Access Journals (Sweden)

    Marcia Bianchi Villelli

    2015-06-01

    Full Text Available Desde inicios del siglo XX hasta el presente, la historiografía tradicional argentina se ha ocupado de estudiar la colonización española de costa patagónica de fines del siglo XVIII. La perspectiva desarrollada hasta 1980 se vinculaba principalmente a ámbitos conservadores de la historia que generaron una imagen fuertemente eurocéntrica y colonialista tanto del proceso de poblamiento como de cada uno de los tres asentamientos instalados sobre la costa patagónica entre 1779 y 1780 (el Fuerte Nuestra Señora del Carmen -Carmen de Patagones, Pcia. de Buenos Aires-, la Nueva Colonia y Fuerte de Floridablanca -Puerto San Julián, Pcia. de Santa Cruz- y el Fuerte San José -Península Valdés, Pcia. de Chubut.A partir de nuevas investigaciones realizadas en el Fuerte San José, el presente trabajo discutelas aproximaciones históricas tradicionales al mismo. Desde una perspectiva descolonial, se busca mostrar cómo el relato maestro historiográfico es solidario con la construcción del estado nación argentino, apoyándose en una mirada retrospectiva para legitimar su profundidad temporal y extensión espacial. De este modo, proponemos desde la arqueología histórica exponer la materialidad de nuevas tramas de sentidos para comprender proceso colonial en Patagonia, visibilizando otros espacios, actores, procesos y materialidades que habían quedado desdibujados en el relato maestro de la historiografía provincial y nacional.   Abstract  From the beginnings of the twentieth century up to present day, Argentinian traditional historiography has studied the late eighteenth century Spanish colonization of the Patagonian coast. The viewpoint developed until 1980 was mainly linked to conservative environmentsof historythat generated a strong Eurocentric and colonialist image of both, the process of settlement andof each of the three installed settlements on the Patagonian coast between 1779 and 1780 (Nuestra Señora del Carmen Fort -Carmen de

  14. El patrimonio industrial petrolero en la Patagonia: Comodoro Rivadavia (Argentina y Cerro Sombrero (Chile. Una perspectiva comparada

    Directory of Open Access Journals (Sweden)

    Pía Acevedo Méndez

    2016-01-01

    Full Text Available El hallazgo de petróleo en Comodoro Rivadavia (Chubut, Argentina y en Manantiales (Tierra del Fuego, lado chileno, motivó la construcción de espacios socioproductivos bajo el modelo de Company Towns. En el caso argentino la empresa estatal Yacimientos Petrolíferos Fiscales (Y.P.F creó el Campamento Central y la Empresa Nacional del Petróleo (ENAP creó Cerro Sombrero en Chile, los que en la década de 1970 formaron dos tejidos urbanos (barrio en el caso argentino y pueblo en el caso chileno. En esta dinámica se transformó el modo de habitar de ambos espacios, que se convirtieron en potenciales elementos turísticos, teniendo en cuenta que desde el año 2014 poseen reconocimiento patrimonial relacionado con su pasado petrolero y su arquitectura moderna. El objetivo es comparar cómo ambas empresas petroleras estatales construyeron dichos espacios “urbanos” y sus comunidades sociolaborales e indagar en la relación identidad/ patrimonio de ypefeanos y enapinos.

  15. Case study - Argentina

    International Nuclear Information System (INIS)

    Antecedents and experience of nuclear activities in Argentina; the Atomic Energy Commission (CNEA). First development and research activities. Research reactors and radioisotopes plants. Health physics and safety regulations. - Feasibility studies for the first nuclear power plant. Awarding the first plant CNA I (Atucha I). Relevant data related to the different project stages. Plant performance. - Feasibility study for the second nuclear power plant. Awarding the second plant CNE (Central Nuclear Embalse). Relevant data related to established targets. Differences compared with the first station targets. Local participation. Plant performance. (orig./GL)

  16. Estimating Hantavirus Risk in Southern Argentina: A GIS-Based Approach Combining Human Cases and Host Distribution

    Directory of Open Access Journals (Sweden)

    Veronica Andreo

    2014-01-01

    Full Text Available We use a Species Distribution Modeling (SDM approach along with Geographic Information Systems (GIS techniques to examine the potential distribution of hantavirus pulmonary syndrome (HPS caused by Andes virus (ANDV in southern Argentina and, more precisely, define and estimate the area with the highest infection probability for humans, through the combination with the distribution map for the competent rodent host (Oligoryzomys longicaudatus. Sites with confirmed cases of HPS in the period 1995–2009 were mostly concentrated in a narrow strip (~90 km × 900 km along the Andes range from northern Neuquén to central Chubut province. This area is characterized by high mean annual precipitation (~1,000 mm on average, but dry summers (less than 100 mm, very low percentages of bare soil (~10% on average and low temperatures in the coldest month (minimum average temperature −1.5 °C, as compared to the HPS-free areas, features that coincide with sub-Antarctic forests and shrublands (especially those dominated by the invasive plant Rosa rubiginosa, where rodent host abundances and ANDV prevalences are known to be the highest. Through the combination of predictive distribution maps of the reservoir host and disease cases, we found that the area with the highest probability for HPS to occur overlaps only 28% with the most suitable habitat for O. longicaudatus. With this approach, we made a step forward in the understanding of the risk factors that need to be considered in the forecasting and mapping of risk at the regional/national scale. We propose the implementation and use of thematic maps, such as the one built here, as a basic tool allowing public health authorities to focus surveillance efforts and normally scarce resources for prevention and control actions in vast areas like southern Argentina.

  17. Activities with Argentina

    International Nuclear Information System (INIS)

    In 1989, the US Department of Energy (DOE) responded to the need to redirect resources from weapons production to environmental restoration and waste management by establishing the Office of Environmental Management (EM) and delegated to this office the responsibility of cleaning up the US nuclear weapons complex. Now in its eight year, EM's mission has three central facets: (1) to assess, remediate, and monitor contaminated sites and facilities; (2) to store, treat, and dispose of waste from past and current operations; and (3) to develop and implement innovative technologies for environmental cleanup. 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 industries 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

  18. Operating practical experience at Argentina

    International Nuclear Information System (INIS)

    Operating experiences of Atucha-1 and Embalse Nuclear Power Plants were discussed in this work. The technical and economic aspects, such as reliability, availability, personnel training, operating costs, prices and market, which exercise influence upon Argentina nuclear energy policy, mainly on the power electric generation by nuclear power plants were considered. Finally the current status of the nucleoelectric sector in Argentina and forecasting were analysed

  19. A search for Potential Impact Sites in Southern Argentina

    Science.gov (United States)

    Rocca, M. C. L.

    The Southern part of Argentina is composed of five Provinces; Tierra del Fuego, Santa Cruz, Chubut, Rio Negro and Neuquen. A search for potential impact sites was performed by the author through the examination of 76 color LANDSAT satellite images ( 1:250,000 - resolution = 250 meters ) at the Instituto Geografico Militar ( IGM ) of Buenos Aires city. When a potential candidate was found a more detailed study of the site was done. If available the radar X-SAR satellite images of the Deutsche Forschungsanstalt fur Luft-und Raumfahrt, (DLR), Berlin, Germany , were also examined. The final step was to perform a review of the available published geologic information of each site at the Servicio Geologico y Minero Argentino ( SEGEMAR ), ( =Geological Survey of Argentina ), in Buenos Aires. The resulting catalogue contains information about sites where possible simple crater or complex impact structures could be present. Each case demands future detailed and `in situ' research by an impact cratering specialist. --Tierra del Fuego: TF1 ) Ushuaia 5569-II, No 218. Cerro Taarsh, Estancia San Justo. Possible complex structure. Semi-circular area of concentric low ridges. Estimated diameter : 12 km. Probably very eroded. --Santa Cruz: SC1 ) Gobernador Gregores 4969-I, No 127. Estancia La Aragonesa Possible eroded complex structure. Circular area of low ridges, estimated diameter: 10 km.. Bull's eye like morphology. SC2 ) Gobernador Gregores 4969-I, No 127. Gran Altiplanicie Central. Possible simple crater in basalts. Diameter: 1 km.. SC3 ) Tres Lagos 4972-IV, No 106. Meseta del Bagual Chico. Possible perfectly circular simple crater in basalts. Diameter: 1.0 km.. SC4 )Paso Rio Bote 5172-II, No 20. Rio Pelque, Ruta Provincial No 5. A circular bowl-shaped structure is present on fluvial deposits of pleistocenic age. Diameter: 3.5 km.. SC5 ) Caleta Olivia 4769-II, No 28. North of Cerro Doce Grande. Possible complex structure of concentric circular rings of ridges. SC6 ) Caleta

  20. gobierno dividido en Argentina

    Directory of Open Access Journals (Sweden)

    María Elisa Alonso García

    2008-01-01

    Full Text Available Este artículo es una reflexión sobre el gobierno dividido en Argentina, y un análisis sobre las consecuencias negativas que tiene el binomio presidencialismo –multipartidismo para la gobernabilidad y el desarrollo institucional del país. El estudio del caso argentino permite comprobar que el gobierno en minoría no constituye un obstáculo para el desarrollo institucional, y que los problemas que de él se derivan, como el bloqueo legislativo y el conflicto institucional pueden solventarse, evitando la crisis. En este sentido, se analiza el papel jugado por los partidos provinciales, que han sido determinantes para evitar los problemas vinculados con el gobierno dividido

  1. Soft rocks in Argentina

    Institute of Scientific and Technical Information of China (English)

    Giambastiani; Mauricio

    2014-01-01

    Soft rocks are a still fairly unexplored chapter in rock mechanics. Within this category are the clastic sedimentary rocks and pyroclastic volcanic rocks, of low to moderate lithification (consolidation, cemen-tation, new formed minerals), chemical sedimentary rocks and metamorphic rocks formed by minerals with Mohs hardness less than 3.5, such as limestone, gypsum, halite, sylvite, between the first and phyllites, graphitic schist, chloritic shale, talc, etc., among the latter. They also include any type of rock that suffered alteration processes (hydrothermal or weathering). In Argentina the study of low-strength rocks has not received much attention despite having extensive outcrops in the Andes and great impact in the design criteria. Correlation between geomechanical properties (UCS, deformability) to physical index (porosity, density, etc.) has shown promising results to be better studied. There are many studies and engineering projects in Argentina in soft rock geological environments, some cited in the text (Chihuído dam, N. Kirchner dam, J. Cepernic Dam, etc.) and others such as International Tunnel in the Province of Mendoza (Corredor Bioceánico), which will require the valuable contribution from rock mechanics. The lack of consistency between some of the physical and mechanical parameters explored from studies in the country may be due to an insufficient amount of information and/or non-standardization of criteria for testing materials. It is understood that more and better academic and professional efforts in improv-ing techniques will result in benefits to the better understanding of the geomechanics of weak rocks.

  2. Distribución geográfica, historia natural y conservación del hurón menor Galictis cuja (Carnivora: Mustelidae en la Patagonia central, Argentina Geographic distribution, natural history and conservation of the lesser grison Galictis cuja (Carnivora: Mustelidae from Central Patagonia, Argentina

    Directory of Open Access Journals (Sweden)

    Marcelo Carrera

    2012-12-01

    Full Text Available El hurón menor, Galictis cuja, tiene una amplia distribución en el territorio patagónico extraandino, aunque sus registros puntuales son escasos. Este trabajo se desarrolló en la provincia del Chubut, Patagonia Central, Argentina. Aquí se aportan nuevas localidades de registro de G. cuja para esta región; se discuten aspectos de su distribución geográfica y conservación en el Área Natural Protegida Península Valdés (ANP-PV; Patrimonio Natural de la Humanidad y brevemente se explora la representación de G. cuja en los ensambles de carnívoros del ANP-PV desde el Holoceno tardío hasta la actualidad. Se adicionaron 18 nuevos registros de G. cuja en Patagonia central. Se detectó un conflicto entre los pobladores y hurones, que motiva la caza de estos últimos. Se verificó un aparente incremento de abundancia de G. cuja en los últimos miles de años, concomitante con la extinción regional o dramática disminución de Lyncodon patagonicus (Carnivora, Mustelidae.The Lesser Grison, Galictis cuja, is a species widely distributed in extra-Andean Patagonia, although its records are scarce. This work was carried out in Chubut province, Central Patagonia, Argentina. Here we report new occurrence localities of G. cuja for this region; we discuss aspects of their geographical distribution and conservation in the Área Natural Protegida Península Valdés (ANP-PV; World Heritage Site and briefly explores the representation of G. cuja in carnivore assemblages of ANP-PV, since the late Holocene to the present. We added 18 new records of G. cuja in Central Patagonia. We detected a conflict between the rural residents and the Lesser Grison, which motivates the hunting of the latter. There was an apparent increase in abundance of G. cuja in the last thousands of years, concomitant with regional extinction or dramatic reduction of Lyncodon patagonicus (Carnivora, Mustelidae.

  3. Occupational health in Argentina.

    Science.gov (United States)

    Werner, A F

    2000-07-01

    Argentina is within the denominated "new industrialised countries", with the characteristic of having high contrasts in the urban population, based on service and industry, and in the rural population, based on agriculture and cattle, still the main sources of wealth in the country. The process of globalisation and the need to compete hard in international markets have provoked high unemployment and the transfer of workers from a formal market to an informal one. Legislation on occupational health is old and it is in the process of being updated. The system of prevention, assistance and compensation for accidents at work and for occupational illnesses has changed from being optative for employers, to the compulsory hiring of private insurance companies. The Government keeps the role of supervisor of the system. There are enough professionals in occupational health, hygiene and safety but not occupational nurses. The teaching is given by many universities and professional associations, some of which have an active profile in the occupational health of the country. PMID:10963410

  4. Local extinctions in the small mammal’s assemblages between late Holocene and historical times in Talagapa mountains (Patagonia, Argentina: The role of land use changes

    Directory of Open Access Journals (Sweden)

    Analia Andrade

    2016-07-01

    Full Text Available The aim of this work was to evaluate possible changes in the small mammal composition in the Patagonian arid Extra-Andean steppes between the late Holocene and historical times. A bone sequence accumulated by the disintegration of owl pellets deposited inside a cave in the Talagapa mountains (Chubut province, Argentina was analyzed. The paleontological sequence encompasses a time span since 2.857 ± 50 years BP and 2.285 ± 40 years BP and was covered by a thick and compact layer of sheep feces that set the boundaries of historical times. Rodent prey were identified and quantified on the basis of skulls and mandible pairs and Holocene and historical assemblages were compared with those recovered from modern owl pellets collected in the area. The sharpest change appears in recent times, after the modification in the land use in the area, with local extinction of Loxodontomys micropus, a species associated with mesic habitats, and the apparent modification in the frequencies of certain species. Hypotheses about climatic, anthropic, and environmental factors that may have influenced those variations are discussed.

  5. Hungry China Shops in Argentina

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    @@ Chinese investment is flooding into Argentina as the Asian giant expands its global commodity hunt from the raw materials used in industry to the foodstuffs needed to feed its 1.3 billion citizens. China's investment in Latin America hit USI15.6 billion during the 12-month period through the end of May, nearly three times greater than the year-ago period, consulting firm Deloitte said in a report.Of that amount, Brazil received about 60% and Argentina close to 40%.

  6. Tick paralysis cases in Argentina

    Directory of Open Access Journals (Sweden)

    Carlos Remondegui

    2012-08-01

    Full Text Available Tick paralysis (TP occurs worldwide and is caused by a neurotoxin secreted by engorged female ticks that affects the peripheral and central nervous system. The clinical manifestations range from mild or nonspecific symptoms to manifestations similar to Guillain-Barré syndrome, bulbar involvement, and death in 10% of the patients. The diagnosis of TP is clinical. To our knowledge, there are no formal reports of TP in humans in South America, although clusters of TP among hunting dogs in Argentina have been identified recently. In this paper, clinical features of two cases of TP occurring during 1994 in Jujuy Province, Argentina, are described.

  7. Esperando otro 17 de Octubre: la identidad de clase media y la experiencia de la crisis de 2001 en Argentina

    Directory of Open Access Journals (Sweden)

    Ezequiel Adamovsky

    2012-11-01

    Full Text Available This article seeks to contribute to a better understanding of the political dimension to middle-class identity in Argentina, by analyzing an image that appeared after 2001: that of a “17th October of the Middle Class”. This curious image, and the shifts in its meanings from its first introduction to its most recent manifestations, is interpreted by locating it into two different contexts. On one hand, the socio-economic, political and identity changes that Argentine society experienced during and after the 1990s. On the other hand, the longer context of the trauma that the emergence of Peronism produced in 1945, which still casts effects on Argentina culture. The image of the “17th October of the Middle Class” in thus interpreted as a fantasy of closing the Peronist political horizon, by replicating the event that opened it in 1945, this time with the middle (and not the working class in the leading role

  8. Estado nutricional infanto juvenil en seis provincias de Argentina: variación regional

    Directory of Open Access Journals (Sweden)

    Oyhenart, Evelia Edith

    2008-01-01

    Full Text Available En Argentina si bien se dispone de información de prevalencias de malnutrición (desnutrición y exceso de peso, existe dificultad en la comparación debido a que en la mayor parte de los casos hay disparidad en las técnicas y/o metodologías empleadas. El objetivo del presente trabajo es analizar el estado nutricional de la población infanto-juvenil de seis provincias: Buenos Aires (Brandsen y La Plata, Catamarca (Catamarca, Chubut (Puerto Madryn, Jujuy (San Salvador de Jujuy, La Pampa (Santa Rosa y Toay y Mendoza (General Alvear, empleando la misma metodología de estudio a fin de disponer de elementos diagnósticos que permitan su contrastación. Se midieron, en el período 2003-2005, peso corporal (kg y talla (cm en una muestra de 15011 escolares asistentes a 102 establecimientos escolares comprendidos entre los 3 y 18 años de edad. Con los datos obtenidos se analizaron los indicadores Talla/Edad, Peso/Talla, Peso/Edad e Indice de Masa Corporal (IMC. Los indicadores de desnutrición fueron comparados con los valores de referencia provenientes del NCHS y las prevalencias de baja talla para la edad (BT/E, bajo peso para la talla (BP/T y bajo peso para la edad (BP/E se calcularon tomando como punto de corte el percentilo 5 de dicha referencia. Para sobrepeso (S y obesidad (O se tomaron puntos de corte proyectados sobre los valores adultos de 25 y 30 Kg/m2 según edad y sexo propuestos por la referencia Internacional Obesity Task Force. A fin de disponer de información socio-ambiental de las zonas de estudio se analizaron indicadores demográficos, económicos, sociales y ambientales. Cuando fue posible, se utilizaron los datos provenientes del Censo Nacional de Población y Vivienda (CNPyV 2001, de las Encuestas Permanentes de Hogares (EPH, INDEC, de la Dirección de Estadísticas de Salud del Ministerio de Salud de la Nación (DEIS, MSyA y de otros organismos oficiales. Las prevalencias generales de desnutrición (BT/E, BP/T y BP/E y

  9. NREL technical assistance to Argentina

    Energy Technology Data Exchange (ETDEWEB)

    Lilienthal, P. [National Renewable Energy Lab., Golden, CO (United States)

    1997-12-01

    This paper describes assistance to Argentina from the National Renewable Energy Laboratory which has touched on four programs: tariff analysis for rural concessions programs; wind/diesel hybrid retrofits in Patagonia; small hybrid systems designs for rural schools; an assessment of wind resources. The paper expands briefly on the first two points.

  10. Deterioro ambiental y micromamíferos durante el Holoceno en el nordeste de la estepa patagónica (Argentina Environmental deterioration and micromammals during the Holocene in northeastern Patagonian steppe (Argentina

    Directory of Open Access Journals (Sweden)

    ULYSES F. J. PARDIÑAS

    2000-03-01

    Full Text Available Se estudió la composición taxonómica cualitativa y cuantitativa de una muestra de micromamíferos proveniente del paraje Lle cul (43º 20' S, 65º 35' W, en el valle del río Chubut (Argentina, con una antigüedad de 1830 ± 70 años radiocarbónicos AP. La asociación está integrada por roedores sigmodontinos (6 especies, caviomorfos (dos especies, quirópteros (dos especies y marsupiales marmosinos (dos especies, destacándose por su abundancia Calomys cf. C. laucha-C. musculinus (35,2% y Eligmodontia sp. (33,4%. El estudio de la frecuencia esqueletaria y marcas de corrosión sobre los restos óseos indican que el agregado ha sido generado por una estrigiforme poco destructiva, quizás Tyto alba, y depositado probablemente en época invernal. La comparación con los micromamíferos de una muestra actual de egagrópilas de T. alba de la misma localidad (correspondiente a un año, revela una disminución importante en la diversidad específica, con una dominancia cercana al 95% para Calomys cf. C. laucha-C. musculinus. La discusión efectuada a base de muestras actuales representativas de diferentes distritos fitogeográficos patagónicos y evidencias paleoambientales para el Holoceno superior, indican como causas más probables de este empobrecimiento al impacto antrópico durante los últimos 100 años. Actividades como la expansión de agroecosistemas habrían favorecido la dispersión y abundancia de Calomys en detrimento de otros micromamíferosThe qualitative and quantitative taxonomic composition of a micromammal sample from Lle cul (43º 20' S, 65º 35' W, in the lower valley of the Chubut River (Argentina, was analyzed. The age of the sample was 1,830 ± 70 yr BP. The association includes 6 species of sigmodontine rodents, two species of caviomorphs, two species of chiropterans, and two species of marmosine marsupials, including Calomys cf. C. laucha-C. musculinus (35.2% and Eligmodontia sp. (33.4% as the most abundant taxa. The

  11. Spatial distribution, feeding and length–mass relationships of Diamphipnopsis samali (Plecoptera, Diamphipnoidae in a North Patagonia Andean stream, Argentina

    Directory of Open Access Journals (Sweden)

    Guillermo H. OMAD

    2015-01-01

    Full Text Available RESUMEN. Fueron estudiados algunos aspectos de la biología y ecología (patrones de distribución espacial, hábitos alimenticios y relación largo-masa de una población de Diamphipnopsis samali en un arroyo de primer orden que atraviesa un bosque exótico de pino en el centro-norte de Patagonia (Chubut, Argentina. Dos series de muestreos fueron realizados durante períodos de aguas altas y aguas bajas. Toda la información fue tratada con ANOVAS de dos factores y efectos fijos para evaluar diferencias significativas. El análisis de las piezas bucales de D. samali indica que corresponden a un tipo intermedio entre el tipo carnívoro y herbívoro-detritívoro. El contenido estomacal muestra que esta especie se alimenta de hifas fúngicas y madera, aunque en los estadios tempranos se encuentran restos de insectos. No se hallaron diferencias significativas en la alimentación entre períodos de aguas altas y aguas bajas, sin embargo, existieron diferencias significativas entre la dieta de larvas grandes y pequeñas. Fue clara la preferencia por el sustrato tronco y cascada, y también significativamente diferente entre los tipos pozón y corredera. No hubo diferencias significativas en la elección de hábitat entre los períodos de aguas bajas y aguas altas. Esta especie endémica de Patagonia parece estar bien adaptada a la presencia de un bosque ripario exótico, utilizando los troncos caídos como alimento y refugio.

  12. Middle East

    International Nuclear Information System (INIS)

    This document summarizes in a series of tables and graphs the energy profile of Middle East: production, imports, exports, stock change and consumption of crude oil and LNG, oil products, natural gas, coal and lignite, electricity, global primary consumption and energy balance. (J.S.)

  13. Home Financing Institutions in Argentina

    OpenAIRE

    Marcela Cristini; Ramiro Moya

    2004-01-01

    (Available only in Spanish) This work analyses the case of the deepening of mortgage lending in Argentina in the 1990s and compares it with the failure of the 1980s. It shows that macroeconomic stability determines the development of the market and that a rapid takeoff can be achieved with the appropriate legal and market institutions (competition between banks and dollar contracts). The real price of property, and unemployment influence the performance of the market, which expands at the rat...

  14. Mida õpetab Argentina finantskriis? / Karsten Staehr

    Index Scriptorium Estoniae

    Staehr, Karsten, 1962-

    2002-01-01

    Norra majandusanalüütik kirjeldab Argentina majanduspoliitikat, analüüsib tehtud vigu ning hoiatab avatud majandusega Eestit võimalike tulevaste välisshokkide eest. Diagramm: SKP kasv ja üleüldine riigieelarve tasakaal 1991-2001 Argentinas

  15. Ocupación urbana de espacios litorales: gestión del riesgo e iniciativas de manejo en una comunidad patagónica automotivada (Playa Magagna, Chubut, Argentina

    Directory of Open Access Journals (Sweden)

    Alejandro Monti

    2008-01-01

    Full Text Available Playa Magagna es un pequeño asentamiento urbano para recreación estival y de fin de semana, instalado en una típica planicie de acumulación marina de la costa patagónica, sujeta a fuerte influencia de la erosión marina y remoción en masa. Este artículo describe el modo en que los habitantes han procurado mitigar el efecto de ambas funciones forzantes sobre sus casas y otros bienes del entorno doméstico, y muestra que las respuestas individuales han tenido que ser progresivamente complementadas por acciones colectivas y gestiones intersectoriales, a medida que el uso local y regional del espacio fue creciendo. Nuestro trabajo reconstruye la historia socio ambiental a lo largo de 40-50 años, y la interpreta en términos de gestión del riesgo, y del manejo costero, mostrando que la vulnerabilidad física de los contextos expuestos al peligro fue reducida mediante medidas estructurales, y que la vulnerabilidad social, política e institucional fue disminuida incrementando la cohesión interna y el liderazgo. Esta secuencia de eventos es esperable únicamente bajo dos condiciones específicas: espacios habitables con limitada capacidad portante, y una comunidad local automotivada. De no existir una comunidad local con capacidad de autoajuste, deberán esperarse resultados muy diferentes, aun con similares restricciones del medio físico.

  16. Ocupación urbana de espacios litorales: gestión del riesgo e iniciativas de manejo en una comunidad patagónica automotivada (Playa Magagna, Chubut, Argentina)

    OpenAIRE

    Alejandro Monti; Anamaría Escofet

    2008-01-01

    Playa Magagna es un pequeño asentamiento urbano para recreación estival y de fin de semana, instalado en una típica planicie de acumulación marina de la costa patagónica, sujeta a fuerte influencia de la erosión marina y remoción en masa. Este artículo describe el modo en que los habitantes han procurado mitigar el efecto de ambas funciones forzantes sobre sus casas y otros bienes del entorno doméstico, y muestra que las respuestas individuales han tenido que ser progresivamente complementada...

  17. Bioceres: AG Biotechnology from Argentina

    Directory of Open Access Journals (Sweden)

    Roberto Feeney

    2016-04-01

    Full Text Available In this case we present a business decision-making situation in which the CEO of an Argentine Ag Biotech company, Bioceres, has to decide the best way to commercialize a new drought-tolerant transgenic technology. The company was founded by twenty three farmers, who shared a common dream that Argentina could become a benchmark in the development of Ag biotechnology. The case has strategic and financial implications, as well as decision-making situation involving a joint venture with an American biotechnology company. It also introduces to discussion the business models of Ag biotechnology companies in developing countries.

  18. en Argentina en los noventa

    Directory of Open Access Journals (Sweden)

    Marcelo Fabián Delfini

    2005-01-01

    Full Text Available Se analizan los efectos de la implantación de las políticas económicas neoliberales desde 1990 en Argentina sobre la distribución del ingreso y la pobreza, en un marco en que el crecimiento económico no provocó disminuciones sustantivas sobre las variables en estudio. Se emplea el concepto de “estancamiento dinámico ” para analizar las variables propuestas, pues éste sí permite dar cuenta de las regulaciones vigentes durante la década en estudio.

  19. Argentina en el sistema internacional

    OpenAIRE

    Tini, María Natalia

    2002-01-01

    El presente trabajo apunta a analizar cuál es el lugar "real" que ocupa la Argentina en el Sistema Internacional, en contraste, con el lugar "ideal" en que lo ha ido posicionando nuestra dirigencia en los últimos 10 años. Para ello, es esencial realizar un breve repaso de la política exterior llevada a cabo por las administraciones Menem y De La Rúa, como sustento empírico de dicho análisis. La hipótesis plantea que para proyectar una adecuada política exterior es necesario formular un ...

  20. [The health system of Argentina].

    Science.gov (United States)

    Belló, Mariana; Becerril-Montekio, Victor M

    2011-01-01

    This paper describes the health system of Argentina.This system has three sectors: public, social security and private.The public sector includes the national and provincial ministries as well as the network of public hospitals and primary health care units which provide care to the poor and uninsured population. This sector is financed with taxes and payments made by social security beneficiaries that use public health care facilities. The social security sector or Obras Sociales (OS) covers all workers of the formal economy and their families. Most OS operate through contracts with private providers and are financed with payroll contributions of employers and employees. Finally, the private sector includes all those private providers offering services to individuals, OS beneficiaries and all those with private health insurance.This sector also includes private insurance agencies called Prepaid Medicine Enterprises, financed mostly through premiums paid by families and/or employers.This paper also discusses some of the recent innovations implemented in Argentina, including the program Remediar.

  1. [The health system of Argentina].

    Science.gov (United States)

    Belló, Mariana; Becerril-Montekio, Victor M

    2011-01-01

    This paper describes the health system of Argentina.This system has three sectors: public, social security and private.The public sector includes the national and provincial ministries as well as the network of public hospitals and primary health care units which provide care to the poor and uninsured population. This sector is financed with taxes and payments made by social security beneficiaries that use public health care facilities. The social security sector or Obras Sociales (OS) covers all workers of the formal economy and their families. Most OS operate through contracts with private providers and are financed with payroll contributions of employers and employees. Finally, the private sector includes all those private providers offering services to individuals, OS beneficiaries and all those with private health insurance.This sector also includes private insurance agencies called Prepaid Medicine Enterprises, financed mostly through premiums paid by families and/or employers.This paper also discusses some of the recent innovations implemented in Argentina, including the program Remediar. PMID:21877098

  2. Sistema de salud de Argentina The health system of Argentina

    Directory of Open Access Journals (Sweden)

    Mariana Belló

    2011-01-01

    Full Text Available En este artículo se describe el sistema de salud de Argentina, que está compuesto por tres sectores: público, de seguridad social y privado. El sector público está integrado por los ministerios nacional y provincial, y la red de hospitales y centros de salud públicos que prestan atención gratuita a toda persona que lo demande, fundamentalmente a personas sin seguridad social y sin capacidad de pago. Se financia con recursos fiscales y recibe pagos ocasionales de parte del sistema de seguridad social cuando atiende a sus afiliados. El sector del seguro social obligatorio está organizado en torno a las Obras Sociales (OS, que aseguran y prestan servicios a los trabajadores y sus familias. La mayoría de las OS operan a través de contratos con prestadores privados y se financian con contribuciones de los trabajadores y patronales. El sector privado está conformado por profesionales de la salud y establecimientos que atienden a demandantes individuales, a los beneficiarios de las OS y de los seguros privados. Este sector también incluye entidades de seguro voluntario llamadas Empresas de Medicina Prepaga que se financian sobre todo con primas que pagan las familias y/o las empresas. En este trabajo también se describen las innovaciones recientes en el sistema de salud, incluyendo el Programa Remediar.This paper describes the health system of Argentina.This system has three sectors: public, social security and private.The public sector includes the national and provincial ministries as well as the network of public hospitals and primary health care units which provide care to the poor and uninsured population. This sector is financed with taxes and payments made by social security beneficiaries that use public health care facilities. The social security sector or Obras Sociales (OS covers all workers of the formal economy and their families. Most OS operate through contracts with private providers and are financed with payroll

  3. Metamorfismo de muy bajo grado asociado a un sistema geotermal en rocas volcánicas básicas del Jurásico Medio, Formación Lonco Trapial, Paso Berwin, Chubut extra-andino Very low grade metamorphism associated with a geothermal system in basic volcanic rocks of the Middle Jurassic, Lonco Trapial Formation, Paso Berwin, Extra-Andean Chubut

    Directory of Open Access Journals (Sweden)

    P. Montecinos

    2004-12-01

    Full Text Available Las rocas volcánicas básicas de la Formación Lonco Trapial, poseen una mineralogía primaria compuesta principalmente por olivino, plagioclasa cálcica y piroxeno, presentando además gran cantidad de amígdalas. La mineralogía metamórfica de muy bajo grado en estas rocas está caracterizada por ceolitas, minerales arcillosos y micáceos. La asociación mineral más característica está compuesta por celadonita, montmorillonita, heulandita, analcima, gonnardita y, además, por levyna y minerales de la serie analcima-wairakita en forma subordinada. Esta asociación pertenece a la facies ceolita y tuvo un origen asociado a un sistema geotermal. La analogía establecida con las zonas de ceolitas conocidas para sistemas geotermales equivalentes y el uso de la grilla petrogénetica para paragénesis ceolíticas, en el sistema An-Ab-SiO2-H2O, permiten establecer un rango de temperatura entre 80°-180°C. En este contexto habría ocurrido un único evento metamórfico hidrotermal en presencia de una fase fluida, muy pobre en CO2, cuya composición química habría cambiado desde un carácter neutro con baja a(SiO2 y a(K2O moderada (permitiendo la precipitación de esmectitas y celadonita a un carácter neutro-alcalino con a(SiO2 que posibilita la estabilidad de la heulandita.The basic volcanic rocks of the Lonco Trapial Formation, have a primary mineralogy mainly composed of olivine, calcic plagioclase and pyroxene, and present a large quantity of amygdales. Their metamorphic mineralogy is characterized by zeolites, clay and micaceous minerals. The main mineral association includes celadonite, montmorillonite, heulandite, analcime, gonnardite and subordinate levyne and minerals of the wairakite-analcime series. This association belongs to the zeolite facies and its origin was associated with a geothermal system. The analogy with known zeolite zones in equivalent geothermal systems and the use of the petrogenetic grid for zeolite parageneses, in the system An-Ab-SiO2-H2O, permits to establish a range of temperature between 80°-180°C. A single metamorphic hidrothermal event would have taken place in presence of a CO2 very poor fluid phase, whose chemical composition possibly changed from a neutral character with low a(SiO2 and moderate a(K2O (allowing precipitation of smectites and celadonite to a neutral-alkaline character with high a(SiO2 that allows heulandite to be stable.

  4. Argentina: entre o Mercosul e a Alca

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    Raúl Bernal-Meza

    2001-12-01

    Full Text Available Este artigo procura mostrar que a Argentina não está numa encruzilhada na sua política externa, tendo que escolher entre Mercosul ou Alca. Ao contrário, a Argentina vê o Mercosul como um caminho que leva à Alca, afirmando uma posição que se tornou possível depois da confluência de outros fatores, como a posição brasileira frente a Alca e o modelo de integração regional proposta para o Mercosul.This article seeks to show that Argentina is not in crossroads in your foreign policy, having to choose between Mercosur and FTAA. In contrast, Argentina sees Mercosur as a way that leads to FTAA, affirming a position that become possible after a confluence of others factors, as the Brazilian position front Alca and the model of regional integration proposal for Mercosur.

  5. Combined impact of ultraviolet radiation and increased nutrients supply: A test of the potential anthropogenic impacts on the benthic amphipod Amphitoe valida from Patagonian waters (Argentina

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    Macarena S. Valiñas

    2014-08-01

    Full Text Available Experiments were conducted during the Austral Summer of 2014 to determine the effects of increased nutrient input and ultraviolet radiation (UVR on the food consumption rate (FCR and food preference in the amphipod Amphitoe valida. We collected specimens from the Patagonian coast (Argentina, from beaches close (Barrancas Blancas; BB and further away (Cangrejales; C from the Chubut River, which constitutes the potential source of eutrophication. Organisms were exposed to different radiation regimes (full radiation vs. PAR only and fed with different macroalgae diets (i.e., from different geographical location and with different quality in terms on nutrient content. Males collected from C showed food compensation, consuming more food under low-nutrient diets, while no compensation was observed in males from BB. Regardless of their origin, UVR decreased the FCR when males where fed on ambient nutrient diets, but not when males fed on high-quality diets indicating that in the former case, individuals were in worse physiological conditions to cope with UVR; food quality, however, significantly counteracted the deleterious effects of UVR on FCR. Females collected from the two beaches showed similar FCR under high-nutrient diet and had no food compensation when fed in low-nutrient diets. Females were more vulnerable to UVR, since their FCR were lower when exposed to UV radiation independent of the diet. Our results show that under anthropogenic eutrophication and high solar UVR levels an increase in the nutrient input could favor only males of A. valida, by reducing the negative effects of UVR on their FCR. Nevertheless, these nutrient inputs might cause additional problems like anoxia, as a result of an unusual macroalgal growth, thus affecting amphipod’s survival.

  6. Argentina: toward energy self-sufficiency

    International Nuclear Information System (INIS)

    Argentina has one operating nuclear power plant, the 367 MWe Atucha I supplied by Kraftwerk Union. The second plant, at Rio Tercero, is a standard 600 MWe CANDU, expected to be in service in 1981. Contractors are Atomic Energy of Canada Ltd. for the nuclear steam supply, and Italimpianti for the balance of the plant. Bids are being considered for a third plant, Atucha II. Argentina is moving gradually towards developing a nuclear industry based on its own uranium and manpower resources. (LL)

  7. Argentina en el MERCOSUR (2007-2011)

    OpenAIRE

    Gentile, María Elisa

    2012-01-01

    En este trabajo se analizan los principales aportes de Argentina en el MERCOSUR, bajo el primer gobierno de Cristina Fernández de Kirchner teniendo en cuenta que el gobierno de la Argentina hizo del bloque regional uno de los ejes principales de su política exterior. Como resultado, en los últimos años han aparecido indicadores de resurgimiento del MERCOSUR, a pesar de lo cual aún persisten algunos conflictos.

  8. La extensa zona de deslizamientos de la escarpa oriental de la Pampa de Salamanca, Chubut, entre los 45°00´S y 45°45´S The extensive zone of slides on the eastern erosion scarp of Pampa de Salamanca, Chubut

    Directory of Open Access Journals (Sweden)

    E.F. González Díaz

    2004-12-01

    Full Text Available Durante la ejecución del mapa geomorfológico de la provincia del Chubut, se identificó entre las latitudes de los 45°00´S y 45°45´S y a lo largo de unos 70-75 km, una extensa faja de deslizamientos adyacente y prácticamente paralela a la escarpa oriental de la Pampa de Salamanca. Los deslizamientos, con marcado predominio de deslizamientos rotacionales, perturban el tramo superior de la secuencia sedimentaria terciaria. En los niveles arcillosos de la Formación Chenque (= Formación Patagonia, se localizarían las superficies de despegue o corte (shear para su ocurrencia. Diferencias entre sus rasgos morfológicos, tipológicos y el promotor sugerido permiten proponer cuatro zonas (I, II, III y IV de deslizamientos. La tipología aquí propuesta es provisoria, siendo sólo una base de futuras elaboraciones. Cronológicamente se diferenciaron dos conjuntos de deslizamientos: unos antiguos, más extensos y de mayor volumen, con marcadas evidencias de erosión y aquellos modernos, más reducidos, que con excelente conservación de su morfología primaria, son producto de posteriores removilizaciones acontecidas en sectores de los antiguos, que se expresan esencialmente bajo la forma de flujos (corrientes de tierra o earthflows y más ocasionalmente como deslizamientos rotacionales secundarios (slumps. Entre los de mayor edad, los de la zona I, son definidos como afines en general a un deslizamiento rotacional con una fase distal de flujo; ocasionalmente habrían superado los límites del actual acantilado marino. A pesar de esta primera apreciación, no se descarta su consideración como ejemplos de expansiones laterales (lateral spreads. Los de la zona II, son definidos como deslizamientos rotacionales múltiples retrogradantes. Aquellos de la zona III integran un conjunto de deslizamientos con un marcado control estructural (N50°E, en sus desprendimientos. La zona IV, compone una estrecha y continua faja adyacente a la Pampa de

  9. La materia orgánica particulada: comparación de métodos para su determinación y su valor como indicador de calidad de suelos del Chubut Particulate organic-matter: a comparison of methods for its determination and its role as an indicator of soil quality for some soils in the province of Chubut

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    Lina Sonia Videla

    2008-12-01

    Full Text Available La materia orgánica particulada (MOP es un componente dinámico del suelo, que responde selectiva y rápidamente a los cambios de manejo y distintos tipos de disturbios. El objetivo de este estudio fue comparar dos técnicas de determinación de MOP en distintos suelos y evaluar el potencial de esta variable como indicadora de calidad de los mismos. Se estudiaron tres sitios ecológicos de la provincia del Chubut con distinto manejo o afectados por distintos disturbios: Media Luna Clausura (ML C, Media Luna Pastoreo (ML P, Puerto Madryn bioperturbado (PM B, Puerto Madryn no bioperturbado (PM NB, Punta Ninfas no erosionado (PN NE y Punta Ninfas erosionado (PN E. En muestras de suelos extraídas de 0 a 5 cm (PM y PN y de 0 a 10 cm (ML de profundidad se determinó la materia orgánica total (MOT y la MOP por vía húmeda (MOPh (Método Walkley y Black y por ignición en mufla (MOPi a 430 °C. En los Molisoles de ML y en los Aridisoles de PM la MOPi fue mayor que la MOPh, mientras que para los Aridisoles de PN no se registraron diferencias significativas entre los dos métodos. Para los suelos con carbonatos (PM o con alofanos (ML, el método por ignición sobreestimó los contenidos de MOP. La MOT presentó una alta correlación con la MOPh y con la MOPi para todos los suelos en conjunto (r² = 0,89 y r² = 0,73, respectivamente. El suelo que presentó una mayor relación MOP/MOT fue PN NE. En contraste, el suelo PN E, mostró los valores más bajos para esta relación, lo que indicaría, por un lado, que la poca MO que contienen estos suelos está predominantemente asociada a la fracciónParticulate organic-matter (MOP is a dynamic soil component that quickly and selectively responds to management changes and to different disturbance regimes. We compared two techniques to determine the MOP content in different soils and assessed the potential of this variable as an indicator of soil quality. We studied the soils of three ecological sites located

  10. XI Simposio de Investigación en Enseñanza de la Física : 26 al 28 de octubre de 2012. Esquel (Chubut)

    OpenAIRE

    Cordero, Silvina

    2012-01-01

    La “enseñanza de la Física”, como área de conocimientos, conjuga aportes de diversas disciplinas para el análisis de los procesos de (re)construcción de conocimientos físicos en espacios educativos. Es un campo de investigación específico, considerado en Argentina una “didáctica específica”, y por eso frecuentemente sólo denominado Didáctica de la Física. Su historia ha estado muy impregnada de una visión psicologista de los fenómenos educativos. También es un campo muy complejo, por ser u...

  11. Poverty and Health in Argentina

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    Maria Alejandra Silva

    2009-06-01

    Full Text Available This article examines health conditions in the rural areas of Central Argentina, the country’s main region for soy-bean production and export. Health conditions are analyzed through the concepts of emerging and re-emerging diseases in a context of increasing poverty. Data on poverty and health was obtained from both primary sources (trade union, government officials, rural doctors and the South Watch/FA/FODEPAL/UNR working group and secondary sources (IPEC/INDEC, IDESA, Consultora Equis, the Argentine Ministry of Employment, ILO, the Ministry of Health, the Ministry of the Environment, toxicology centers and rural doctors. Analysis of rural health conditions gives cause for concern. There is evidence of deterioration in the social determinants of health such as an increase in rural and urban poverty associated with informal employment and child labor. At the same time lack of government epidemiological and toxicological data appears to hide or distort the reality of health conditions.

  12. Soybean biomass produced in Argentina

    DEFF Research Database (Denmark)

    Semino, Stella; Paul, Helena; Tomei, Julia;

    Soybean biomass for biodiesel, produced in Argentina amongst other places, is considered by some to reduce greenhouse gas emissions and mitigate climate change when compared with fossil fuel. To ensure that the production of biofuels is ‘sustainable', EU institutions and national governments are...... been demonstrated in several studies, but the atmospheric impact of soybean cultivation has not been tested in situ. Some of the models for climate impact (N2O emissions etc) are based on in vitro studies, while field data are scarce. The situation, which is outside the control of the EU, has not been...... environmental sustainability. This is exemplified by soy, whose cultivation undermines the climate benefit claimed for soy-based biodiesel. This paper concludes that to certify soy monocultures as sustainable would exacerbate existing climatic and environmental problems....

  13. ESTUDIOS TÉCNICOS SOBRE UN IMPLEMENTO DE HIERRO DEL CONTACTO HISPANO INDÍGENA EN EL NOROESTE DE ARGENTINA

    OpenAIRE

    Gluzman, Geraldine A.; Edgardo D. Cabanillas; Luis R. González

    2008-01-01

    In this presentation we inform the results of some technical studies made on one fragment of a small iron chain. These studies were compositional and metallographical analysis. The object of study was found during archaeological excavations in the native settlement of Ampajango II, located in Northwestern Argentina. The process of colonization by Spanish conquerors, initiated in the middle of the XVI Century in the area, involved a strong opposite on from native people. The southern sector of...

  14. Patrones biogeográficos de los tenebriónidos epigeos (Coleoptera: Tenebrionidae del Área Natural Protegida Península Valdés, Argentina: implicaciones para su conservación Biogeographic patterns of epigean tenebrionids (Coleoptera: Tenebrionidae from Protected Natural Area Península Valdés, Argentina: implications for its conservation

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    Rodolfo Carrara

    2011-12-01

    Full Text Available Se realizó un estudio sobre los patrones biogeográficos de los tenebriónidos epigeos (Coleoptera: Tenebrionidae que habitan el Área Natural Protegida Península Valdés (Chubut, Argentina, basado en datos de colecciones y material recolectado en viajes a la zona. Se presenta una lista exhaustiva de las especies en la que se consigna el grado de adaptación a la aridez de cada una de ellas; un análisis de la calidad del inventario y la estimación de la riqueza total de especies; una evaluación de los patrones de distribución y riqueza, y la identificación de áreas de significativa mayor riqueza o hotspots. Los resultados indicaron que 25 especies con diferente grado de adaptación a la aridez habitan la península, aunque se estima que la riqueza total del área debería ser de 27. Además, se reconoció que los rangos de distribución de los tenebriónidos siguen una distribución log-normal y que sólo 3 especies son endémicas. Espacialmente, la riqueza se distribuyó de forma agregada en la península y se determinaron 10 hotspots. Finalmente, considerando que en la península Valdés están permitidas actividades productivas que originan una importante degradación del hábitat, se examina la implicancia de los resultados para la conservación de los tenebriónidos epigeos.We conducted a study of the biogeographic patterns of epigean tenebrionids (Coleoptera: Tenebrionidae that inhabit the Protected Natural Area Península Valdés (Chubut, Argentina, based on data obtained from collections and collecting trips. We present a comprehensive species list, where we detail the degree of adaptation to aridity shown by each species, an analysis of the quality of the inventory, an estimation of total species richness, and an evaluation of distribution and richness patterns, with the identification of areas of significantly greater richness or "hotspots". The results indicated that 25 species with different degrees of adaptation to aridity

  15. Control of nuclear materials and materials in Argentina

    International Nuclear Information System (INIS)

    A general view about the safeguards activities in Argentina is presented. The national system of accounting for and control of nuclear materials is described. The safeguards agreement signed by Argentina are presented. (E.G.)

  16. Climbing up a Steeper Staircase: Intergenerational Social Mobility across Birth Cohorts in Argentina

    OpenAIRE

    Dalle, Pablo

    2013-01-01

    Argentina is a middle-income developing country that has undergone significant economic change in the last quarter of the 20th century. Many studies address the impact of market oriented policies on the labor market (e.g., the expansion of precarious work, the increase in poverty and income inequality); however, there have been few empirical studies that analyze changes in the degree of openness in class structure.             Recent studies on social stratification in industrial soc...

  17. Sedimentology and paleoenvironments of the Las Chacritas carbonate paleolake, Cañadón Asfalto Formation (Jurassic), Patagonia, Argentina

    Science.gov (United States)

    Cabaleri, Nora G.; Benavente, Cecilia A.

    2013-02-01

    The Las Chacritas Member is the lower part of the Cañadón Asfalto Formation (Jurassic). The unit is a completely continental limestone succession with volcanic contributions that were deposited during the development of the Cañadón Asfalto Rift Basin (Chubut province, Patagonia, Argentina). A detailed sedimentological analysis was performed in the Fossati depocenter to determine the paleoenvironments that developed in the context of this rift. The Las Chacritas Member represents a carbonate paleolake system with ramp-shaped margins associated with wetlands that were eventually affected by subaerial exposure and pedogenesis. This process is represented by three main subenvironments: a) a lacustrine setting sensu stricto (lacustrine limestone facies association), represented by Mudstones/Wackestones containing porifera spicules (F1), Intraclastic packstones (F6) and Tabular stromatolites (F10) in which deposition and diagenesis were entirely subaqueous; b) a palustrine setting (palustrine limestone facies association) containing Microbial Mudstones (F2), Intraclastic sandy packstone with ostracode remains (F3), Oncolitic packstone (F5), Brecciated limestone (F7) and Nodular-Mottled limestone (F8) representing shallow marginal areas affected by groundwater fluctuations and minor subaerial exposure; and c) a pedogenic paleoenvironment (pedogenic limestone facies association) including Intraclastic limestone (F4) and Packstones containing Microcodium (F9) facies displaying the major features of subaerial exposure, pedogenic diagenesis and the development of paleosols. The fluvial-palustrine-lacustrine succession shows a general shallow upward trend in which contraction-expansion cycles are represented (delimited by exposure and surface erosion). The variations in the successive formations reflect the responses to fluctuations in a combination of two major controls, the tectonic and local climatic variables. The predominance of the palustrine facies associations was

  18. Psychiatry and humanism in Argentina.

    Science.gov (United States)

    Niño Amieva, Alejandra

    2016-04-01

    The authors of the present selection of Latin American Psychiatry texts were characterized by a common deep humanistic attitude. These prolific writers were able to establish or extend the scope of the discipline in which they chose to act, questioning the establishment of rigid boundaries within the framework of a rigorous epistemological reflection. Thus the systematizing spirit of Jose Ingenieros' in the context of positivist evolutionism, resulted in the act of founding a discipline that integrated the biological and the social. In the case of Guillermo Vidal his conception of mental health went beyond the biomedical to consider psychotherapies as an emotional commitment, continence and empathic understanding; with regard to César Cabral his formation and extensive clinical practice resulted in a work defined by the inquiring into the theoretical concepts underlying Psychiatry and Clinical Psychology. This brief selection does not exhaust the issues or the level of ideas and discussions of Psychiatry in Argentina, but constitutes a textual corpus representative of a disciplinary conception understood as scientific and humanistic endeavor.

  19. Breaking the Barriers to Higher Economic Growth : Better Governance and Deeper Reforms in the Middle East and North Africa

    OpenAIRE

    Nabli, Mustapha Kamel

    2007-01-01

    Contents of the report are as follows: Long-term economic development: challenges and prospects for the Arab countries by Mustapha K. Nabli. Reform complementarities and economic growth in the Middle East and North Africa by Mustapha Kamel Nabli, and Marie-Ange Veganzones-Varoudakis. After Argentina: was MENA right to be cautious? By Mustapha K. Nabli. Restarting Arab economic reform by Mu...

  20. Ticks infesting humans in Northern Misiones, Argentina.

    Science.gov (United States)

    Lamattina, Daniela; Nava, Santiago

    2016-01-01

    This work presents records of ticks infesting humans in northern Misiones Province, Argentina. Also, notes on potential transmission of tick-borne pathogens are included. A total of 282 ticks attached to researchers were collected and identified by their morphological characters. Eight tick species were found: Amblyomma brasiliense, Amblyomma coelebs, Amblyomma dubitatum, Amblyomma incisum, Amblyomma ovale, Haemaphysalis juxtakochi, Rhipicephalus sanguineus and Rhipicephalus microplus. Some of these species as A. dubitatum, A. ovale and R. sanguineus have been found infected with spotted fever group rickettsiae pathogenic to humans in Brazil and Argentina. The potential role as vectors of humans pathogens of the ticks found attached to humans in this study is discussed.

  1. El desarrollo nuclear de Argentina y Brasil

    OpenAIRE

    Quintanar, Silvia; Romegialli, Mónica

    2004-01-01

    En el Cono Sur Latinoamericano, Brasil y Argentina han concluido en materia de energía atómica una serie de acuerdos bilaterales, con jerarquía de tratados vinculatorios, que aseguran el uso exclusivamente pacífico de la energía nuclear. En los años 90 se profundiza el fortalecimiento de la confianza mutua, los gobiernos de Carlos Menem, en Argentina, Collor de Melho, Itamar Franco y Fernando H. Cardoso, en Brasil, siguen los lineamientos de las grandes potencias y en particular de Estados Un...

  2. Devonian-Carboniferous unconformity in Argentina and its relation to the Eo-Hercynian orogeny in southern South America

    Science.gov (United States)

    López-Gamundí, O. R.; Rossello, E. A.

    1993-04-01

    The Devonian-Carboniferous contact in southern South America, characterized by a sharp unconformity, has been related to the Late Devonian-Early Carboniferous Eo-Hercynian orogeny. The Calingasta-Uspallata basin of western Argentina and the Sauce-Grande basin (Ventana Foldbelt) of eastern Argentina have been selected to characterize this unconformity. The Eo-Hercynian movements were accompanied in western Argentina by igneous activity related to a Late Devonian—Early Carboniferous magmatic arc mainly exposed today along the Andean Cordillera. This magmatic activity is partly reflected also in eastern Argentina (Ventana Foldbelt), where isotopic dates suggest a thermal event also related to the intrusions present to the west in the North Patagonian Massif and Sierras Pampeanas. The scarcity of Lower Carboniferous deposits in the stratigraphic record of southern South America suggests that the Early Carboniferous was a time interval dominated by uplift and erosion followed by widespread subsidence during the Middle and Late Carboniferous. The origin of the Eo-Hercynian orogeny can be linked with the convergence between the Arequipa Massif, and its southern extension, and the South American continent. Its effects are best represented along the ‘Palaeo-Pacific’ margin, although distant effects are discernible in the cratonic areas of eastern South America.

  3. ON THE PRESENCE OF PYRAMIODONTHERIUM (MAMMALIA, XENARTHRA, MEGATHERIIDAE IN THE LATE MIOCENE OF NORTHEASTERN ARGENTINA AND ITS BIOGEOGRAPHICAL IMPLICATIONS

    Directory of Open Access Journals (Sweden)

    DIEGO BRANDONI

    2009-03-01

    Full Text Available The biochron of the subfamily Megatheriinae, large to very large terrestrial sloths typified by Megatherium Cuvier, in Argentina extends from the middle Miocene of Patagonia to the late Pleistocene-early Holocene. Megatheriines reached their highest diversity in the lower levels (="conglomerado osífero", late Miocene of the Ituzaingó Formation in Entre Ríos Province, northeastern Argentina. Among the four megatheriines that occur in this unit, the genera Promegatherium Ameghino, Eomegatherium Kraglievich and Pliomegatherium Kraglievich represent relatively small to medium-sized taxa. Here we describe new material assigned to Pyramiodontherium, the largest of the four genera from the same bed and comparable in size to some Quaternary species of Megatherium. Three valid species of Pyramiodontherium have been recognized, all distributed mainly in northwestern Argentina, from the late Miocene in Catamarca Province (and probably also in Tucumán Province, and the late Pliocene in La Rioja Province. The presence of this genus in northeastern Argentina extends its known paleobiogeographical distribution. 

  4. China Looks to Argentina to Grow Food

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    @@ It might sound perverse for a Chinese company to go halfway round the globe to grow soya and other crops on unproductive land in a dry corner of Argentina. Yet that is what Beidahuang Group, a state-owned farm company based in the north-eastern Chinese province of Heilongjiang, is doing in the Pa-tagonian province of Rio Negro.

  5. Microsporidian isolates from mosquitoes of Argentina

    Science.gov (United States)

    Microsporidia are among the most common and widely distributed microbial pathogens associated with mosquitoes in nature. Since 1980 studies of microsporidia in mosquitoes of Argentina were conducted at the Laboratory of Insect Vectors of CEPAVE. Eleven morphologically unique species of microsporidia...

  6. Argentina : Gender Equity in the Private Sector

    OpenAIRE

    World Bank

    2010-01-01

    First tested in Mexico in 2003, and most recently applied in 2009 in Argentina, the World Bank has developed a model to incorporate gender equity into private sector organizations while simultaneously enhancing their business. Under the model, participating organizations conduct a self-diagnosis to identify gender biases and gaps in the operations. This baseline is then used to create and ...

  7. Registration of veterinary products in Argentina.

    Science.gov (United States)

    Butler, E; Cané, B G

    1995-12-01

    A scheme for registering pharmaceutical and biological products for veterinary use was introduced in Argentina in 1994, as part of a joint scheme for countries of the Common Market of the South (Mercado Común del Sur: "Mercosur'). The authors describe the main features of these regulations, and the process which led to their development.

  8. Argentina and Brazil's Relations to the EU

    DEFF Research Database (Denmark)

    Christensen, Steen Fryba

    Analysen diskuterer Argentina og Brasiliens relationer til EU i nyere tid med udgangspunkt i forhandlingerne om en associeringsaftale mellem EU og Mercosur, der igangsattes efter underskrivelsen af en bi-regional rammeaftale i 1995. Fokus er i særlig grad på, hvordan disse relationer bedst forstås...

  9. Rocky Mountain spotted fever in Argentina

    Science.gov (United States)

    Cases of epidemic typhus have been documented in Argentina since 1919; however, no confirmed reports of spotted fever rickettsiosis were described in this country until 1999. We describe the first molecular confirmation of Rickettsia rickettsii, the etiologic agent of Rocky Mountain spotted fever (R...

  10. Pathogenic Hantaviruses, Northeastern Argentina and Eastern Paraguay

    OpenAIRE

    Padula, Paula; Martinez, Valeria P.; Bellomo, Carla; Maidana, Silvina; San Juan, Jorge; Tagliaferri, Paulina; Bargardi, Severino; Vazquez, Cynthia; Colucci, Norma; Estévez, Julio; Almiron, María

    2007-01-01

    We describe the first, to our knowledge, cases of hantavirus pulmonary syndrome in northeastern Argentina and eastern Paraguay. Andes and Juquitiba (JUQ) viruses were characterized. JUQV was also confirmed in 5 Oligoryzomys nigripes reservoir species from Misiones. A novel Akodon-borne genetic hantavirus lineage was detected in 1 rodent from the Biologic Reserve of Limoy.

  11. 1974 amnesty for migrants in Argentina.

    OpenAIRE

    Marmora L

    1983-01-01

    ILO pub. Working paper commenting on migration policy trends and 1974 legislation (Decree 087-74) comprising an amnesty for irregular migrants in Argentina - discusses migrant workers' legal status and impact on the labour market, and considers their geographic distribution, demographic aspects, nationality, illiteracy, labour force participation, occupational structure, etc. Bibliography and statistical tables.

  12. Middle Ear Infections

    Science.gov (United States)

    ... Issues Listen Español Text Size Email Print Share Middle Ear Infections Page Content Article Body What are ... serious illness. What if a child with a middle ear infection is in great pain and discomfort? ...

  13. Políticas de territorialización de indígenas en Chubut: Provincialización de las relaciones interétnicas a través del acceso a la tierra

    Directory of Open Access Journals (Sweden)

    Fabiana Nahuelquir

    2012-12-01

    Full Text Available En el presente artículo buscamos un doble objetivo. Por un lado, realizar una propuesta metodológica de lectura y análisis de presupuestos implícitos en los archivos estatales de tierras, construidos por el estado de la Provincia de Chubut. Por otro, nos abocamos al interior del discurso estatal a reconstruir las premisas que articularon las relaciones interétnicas entre el estado provincial y las familias indíge-nas, autoidentificadas como mapuche y mapuche-tehuelche. Tomamos como punto de partida con-ceptos como los de performance, contextualización y entextualización con la finalidad de (Bauman y Briggs, 2000 proponer una estrategia de análisis y reconstrucción de los marcos de referencia de los que partían los discursos estatales acerca del indígena y, al mismo tiempo, nos ocupamos de indagar cómo dichos marcos proveían de representaciones en curso a partir de las cuales se fijaba el sentido de las relaciones entre este grupo y el resto de la sociedad. El abordaje de las relaciones interétnicas entre el estado provincial y los indígenas requiere de un análisis desde una perspectiva histórica y multisituada. En consecuencia, cruzamos las sentencias de los archivos estatales con los posiciona-mientos de las narrativas indígenas y nos introducimos, entonces, en las particularidades de procesos conformación de comunidad provincial y de alterización de los indígenas al interior de las premisas que la primordializaban

  14. Registro fósil y distribución de Anadenathera en Argentina desde el Mioceno hasta la actualidad

    Directory of Open Access Journals (Sweden)

    Fernández-Pacella, L.

    2015-06-01

    Full Text Available Currently Fabaceae, is one of the dominant families of the Seasonally Dry Tropical Forests or Neotropical seasonal dry forests. Anadenanthera which integrates the family, has wide geographical distribution in South America and the West Indies, but in Argentina it`s only present Anadenantera colubrina var. cebil in the north and their records are represented from the Miocene to the present through palynomorphs and mineralized woods. The main objective of this work is to contribute to the understanding in the context of the history of Anadenanthera during the Neogene and Quaternary in Argentina, on the basis of the review and integration of the paleobotanical history, geological and climatic available that have affected the genre in the country. Studied fossil materials come from different geological formations of Argentina: Chenque Formation (Miocene, Paraná Formation (Middle Miocene, San José Formation (Middle Miocene, Ituzaingó Formation (Pliocene and Iberá (Holocene. The material found on the Chenque Formation is referred to Polyadopollenites coincides with the described material for the Middle Miocene of the central-eastern Argentina and the Pliocene of northeast Argentina. On the other hand in Paraná and Ituzaingó Formation studied sample of mineralized woods of Anadenantheroxylon villaurquisense, finally the sample found in Holocene of Iberá Corrientes Province corresponds to Anadenanthera colubrina var. macrocarpa. With these data it can be concluded that Anadenathera had a wide geographical record in Miocene and Holocene of Argentina, it was found in sediments from the lower Miocene of Patagonia by integrating a Subtropical Paleoflora. From the Middle-Upper Miocene integrated the vegetation in northeast Argentine constituting xerophiles forests. Their last record is equivalent to the Middle Holocene of sediments from Ibera integrating the regional vegetation and indicating an open vegetation characteristics of dry environments

  15. Nuclear energy regulation in Argentina

    International Nuclear Information System (INIS)

    The Nuclear Regulatory Authority was established as an autonomous body reporting to the Presidency of Argentina by Act known as the Nuclear Activity National Act, and is empowered to regulate and control the nuclear activity with regard to radiation and nuclear safety, physical protection and nuclear non-proliferation issues. This report details functions and competence of the regulatory body in order to preserve its own independent criterion regarding every aspect of radiological and nuclear safety, and the global strategy of the regulatory system, which are concentrated in the following basics aspects: issue of the corresponding standards; execution of regulatory inspections and audits to verify the compliance with granted licenses and authorisations; independent execution of analyses and studies for the licensing process of nuclear installations; development of technical and scientific aspects associated to radiological and nuclear safety; training of personnel involved in radiological and nuclear safety, either belonging to the Regulatory Body or those working in installations, which perform practices under control. The regulatory control activities are carried out with independence of technical opinions and decisions; administrative autarchy; legal capacity to act in the field of public and private rights, and qualified personnel. The regulatory system complies with the concept of safety culture and its development, and the commitment to nuclear power plants' safety is made clear in design or operation concepts giving priority to safety over economic rentability of the installations. The compliance with Maintenance Programs, In-service Inspection Programs and good operation practices are also part of the commitment. This paper describes the organisational structure of the regulatory body, its human resources, personnel qualification and training, and the necessary financial resources. The regulatory body issues and establishes the standards, which regulate and

  16. THE TRIASSIC/JURASSIC BOUNDARY IN THE ANDES OF ARGENTINA

    Directory of Open Access Journals (Sweden)

    ALBERTO C. RICCARDI

    2004-03-01

    Full Text Available The Arroyo Malo Formation at Alumbre Creek, on the northern bank of the Atuel River, west central Argentina, comprises a c. 300 m thick continuous marine succession across the Triassic-Jurassic System boundary, consisting of massive and laminated pelites indicative of a slope depositional environment. Late Triassic invertebrates, including ammonoids, nautiloids, bivalves, gastropods, brachiopods and corals are restricted to the lower 150 m. Beds between 125-135 m from the bottom yield Choristoceras cf. marshi Hauer, a species found in the Marshi/Crickmayi Zone of Europe and North America, together with loose fragments of Psiloceras cf. pressum Hillebrandt, coeval with the lower to middle part of the Hettangian Planorbis Zone. About 80 m higher are beds yielding Psiloceras cf. rectocostatum Hillebrandt, a species that gives name to an Andean biozone partially coeval with the Johnstoni and Plicatulum Subzones, upper Planorbis Zone. Other fossils recorded in the Rhaetian strata of this section are foraminifers, ostracods and plant remains identified as Zuberia cf. zuberi (Szaj. Freng. and Clathropteris sp. The section was also sampled for conodonts and radiolarians, thus far with negative results. A palaeomagnetic study is underway.

  17. Middle Ear Infections (For Parents)

    Science.gov (United States)

    ... Story" 5 Things to Know About Zika & Pregnancy Middle Ear Infections KidsHealth > For Parents > Middle Ear Infections ... eventually leading to an ear infection. continue About Middle Ear Infections Inflammation in the middle ear area ...

  18. Presence of Pleurotus ostreatus in Patagonia, Argentina.

    Science.gov (United States)

    Lechner, Bernardo Ernesto; Petersen, Ronald; Rajchenberg, Mario; Albertó, Edgardo

    2002-06-01

    Specimens belonging to the genus Pleurotus were collected growing on fallen trunks of Araucaria araucana, a native tree with a poorly known mycoflora, which grows in Patagonia, Argentina. Fruitbodies were produced in culture on sawdust from an isolated strain. Interspecific pairing tests performed between mating types of Pleurotus from Patagonia and tester strains of P. pulmonarius and P. ostreatus showed the Patagonia strain to be 100% compatible with P. ostreatus and incompatible with P. pulmonarius. Dikaryons obtained on sawdust were fertile, since they were able to produce fruitbodies and viable spores. This is the first documented record of P. ostreatus from Argentina and the first gilled fungus found growing on Araucaria araucana. PMID:12828514

  19. Measurements of atmospheric fallout in Argentina

    International Nuclear Information System (INIS)

    With the purpose of studying the radioactive fallout present in Argentina from atmospheric nuclear explosions tests that have been conducted recently, an environmental monitoring program, outside the influence of nuclear facilities of Argentina, was undertaken during 1996 and 1997. The levels of Cs-137 and Sr-90 were analysed in samples of air, deposited material (rainwater), milk, an average meal of a standard man and food. During this period, a total of 630 radiochemical analysis were performed on 325 samples of the different matrices described. The concentration levels of the radionuclides analysed in the different environmental matrices are presented and are compared with the values obtained in the environmental monitoring program done during the period 1960-1981. (author)

  20. Memories of the armed struggle in Argentina

    OpenAIRE

    Laura Margarita Pasquali

    2013-01-01

    This article presents and develops some of the edges on working of the guerrilla that emerge in the memories of the former militants of the armed organizations in Argentina. Beginig from this journey we will have access to the registration that one has presently on it, which will allows us to establish part of the subjective environment of the moment, the main characters consideration of the activism and their significance in the general context of the militancy.

  1. Aedes aegypti resistance to temephos in Argentina

    OpenAIRE

    Seccacini, Emilia; Lucía Mulas, Alejandro; Eduardo N Zerba; Licastro, Susana; Masuh, Hector M.

    2008-01-01

    Monitoring of resistance of Aedes aegypti to temephos was implemented in the provinces of Formosa and Misiones, Argentina, as a response to the need to improve the vigilance for the dengue vector in areas of high risk of dengue. Eggs collected in each locality were reared, and susceptibility to temephos was assayed using larval bioassays. A weak decrease in susceptibility of larvae to temephos was observed in Clorinda and Puerto Iguazú, indicating an incipient resistance with a resistance rat...

  2. Stronger Municipalities for Stronger Cities in Argentina

    OpenAIRE

    Rémy Prud'homme; Hervé Huntzinger; Pierre Kopp

    2004-01-01

    In recent years a number of studies have been devoted to the twin issues of economic development and of decentralization in Argentina. Many papers have tried to understand the complex system of intergovernmental relations. Most of them, however, have focussed on the role of provinces, and neglected the problems raised by municipalities. This paper tries to bridge this gap, and to suggest that stronger municipalities could contribute to produce stronger cities that would in turn foster economi...

  3. Tierra del Fuego, Argentina, South America

    Science.gov (United States)

    1991-01-01

    The Mitre Peninsula is the easternmost tip of Tierra del Fuego, Argentina, (54.5S, 65.5W). Early winter snow can be seen on this south tip of the Andes Mountains. These same mountains continue underwater to Antarctica. The Strait of Magellan, separating the South American mainland from Tierra del Fuego is off the scene to the north and west, but the Strait of LeMaire, separating Tierra del Fuego from the Isla de los Estados can be seen.

  4. The "Private School Advantage" in Argentina

    OpenAIRE

    Gustavo E. Fischman

    2001-01-01

    Local actors' perceptions of curricular and management changes in two private schools and one neighboring public secondary school in the city of Buenos Aires, Argentina, are analyzed. An exploration was conducted of how, within an ideologically and politically pro-reform context and a widespread acceptance of the "private school advantage," principals, teachers, and students in these schools evaluated the changes (or lack of them) in management, teaching, and curriculum orientations of the se...

  5. The "Private School Advantage" in Argentina

    Directory of Open Access Journals (Sweden)

    Gustavo E. Fischman

    2001-08-01

    Full Text Available Local actors' perceptions of curricular and management changes in two private schools and one neighboring public secondary school in the city of Buenos Aires, Argentina, are analyzed. An exploration was conducted of how, within an ideologically and politically pro-reform context and a widespread acceptance of the "private school advantage," principals, teachers, and students in these schools evaluated the changes (or lack of them in management, teaching, and curriculum orientations of the secondary education sector.

  6. Argentina: Nuclear power development and Atucha 2

    Energy Technology Data Exchange (ETDEWEB)

    Nogarin, Mauro

    2015-08-15

    In 2014, nuclear energy generated about 5,257 GWh of electricity or a total share of 4.05 % of the total electrical energy of about 129,747.63 GWh kWh produced in Argentina and there has been a trend for this production to increase. Argentina currently has a nuclear production capacity of 1,010 megawatts of electrical energy. However, when the Atucha 2 nuclear power plant is completed and starts commercial operation, it will add 745 megawatts to this electrical production capacity. There are two sites with nuclear power plants in Argentina: Atucha and Embalse. The Embalse nuclear power plant went into operation in 1984. At the Atucha site, the Atucha-1 nuclear power plant started operation in 1974. It was the first nuclear power plant in Latin America. Construction of Atucha-2 started in 1981 but advanced slowly due to funding and was suspended in 1994 when the plant was 81 % built. In 2003, new plans were approved to complete the Atucha 2. I summer 2014 the plant went critical for the first time. The construction was completed under a contract with AECL.

  7. A Peculiar New Pampatheriidae (Mammalia: Xenarthra: Cingulata) from the Pleistocene of Argentina and Comments on Pampatheriidae Diversity

    Science.gov (United States)

    Scillato-Yané, Gustavo Juan; Soibelzon, Esteban

    2015-01-01

    Pampatheriidae are a group of cingulates native to South American that are known from the middle Miocene to the lower Holocene. Two genera have been recognized between the lower Pleistocene and the lower Holocene: Pampatherium Gervais and Ameghino (Ensenadan, Bonaerian and Lujanian, lower Pleistocene–lower Holocene) and Holmesina Simpson (Blancan, Irvingtonian, upper Pliocene–lower Holocene). They have been mainly differentiated by their osteoderm morphology and cranio-dental characters. These taxa had a wide latitudinal distribution, extending from the southern part of South America (Península Valdés, Argentina) to North America (Florida, USA). In this contribution, we describe a new genus and species of Pampatheriidae for the lower and middle Pleistocene of Buenos Aires Province and for the upper Pleistocene of Santa Fe Province (Argentina).The new taxon is represented by disarticulated osteoderms, one skull element, two thoracic vertebrae and a right femur and patella. It has extremely complex osteoderm ornamentations and particular morphological characters of the cranial element and femur that are not found in any other species of the family. This new taxon, recorded in the lower–middle Pleistocene (Ensenadan Stage/Age) and in the upper Pleistocene–early Holocene (Lujanian Stage/Age), is incorporated to the Pleistocene mammal assemblage of South America. Finally, the Pampatheriidae diversity is greater during the Lujanian Stage/Age than the Ensenadan Stage/Age. PMID:26083486

  8. Fostering a Middle Class

    Institute of Scientific and Technical Information of China (English)

    YAO BIN

    2011-01-01

    Though there is no official definition of "middle class" in China,the tag has become one few Chinese people believe they deserve anyway.In early August,the Chinese Academy of Social Sciences released a report on China's urban development,saying China had a middle-class population of 230 million in 2009,or 37 percent of its urban residents.It also forecast half of city dwellers in China would be part of the middle class by 2023.

  9. Geología y geoquímica de los cuerpos básicos alcalinos al sur de los lagos Musters y Colhué Huapí, cuenca del golfo San Sorge, Chubut

    Directory of Open Access Journals (Sweden)

    Nilda D Menegatti

    2014-12-01

    Full Text Available En la región de los lagos Colhué Huapí y Musters, situada en la sierra de San Bernardo en el centro sur de la provincia del Chubut, afloran cuerpos ígneos básicos de carácter alcalino con estructuras de stocks, sills, lopolitos y diques, con edades comprendidas entre el Eoceno y Pleistoceno. En este trabajo, se presentan los resultados obtenidos del estudio efectuado en los cerros Negro, Cresta-Puricelli, Guacho, Solo, San Bernardo, Cresta-Trompete y Los Leones-Tumba del Indio, todos ellos localizados al sur de la localidad de Sarmiento. La litología identificada corresponde a gabro, monzogabro nefelínico, sienita nefelínica, basalto y basanita, siendo el gabro la variedad predominante. De acuerdo a la forma, el tamaño, los gradientes texturales y la presencia de zeolitas que presentan los cuerpos intrusivos, se considera que éstos se emplazaron en niveles corticales altos (<1 km. La mayoría de las rocas analizadas son básicas con un porcentaje de SiO2 entre 44 y 48 %, y se caracterizan por el alto contenido en Fe2O3 (10,66-14,67 %, TiO2 (1,23-3,37 % y álcalis (3,35-5,91 %. Los diagramas normalizados tienen el diseño típico de basaltos alcalinos de intraplaca, compatibles con una fuente de tipo OIB enriquecida en elementos incompatibles, con residuo granatífero en la fuente y ausencia de contaminación con la placa subducida o cortical. La pendiente pronunciada de la curva normalizada de REE (La/Yb = 10,2-22,4 señala relativamente bajos grados de fusión parcial. A partir del análisis estructural se plantea un ambiente extensional para el emplazamiento de estos cuerpos que es coherente con lo que indican las características geoquímicas.

  10. Estratigrafía, análisis de facies y paleoambientes de la formación cañadón asfalto en el depocentro jurásico cerro Cóndor, provincia del Chubut

    Directory of Open Access Journals (Sweden)

    Nora Cabaleri

    2010-05-01

    Full Text Available El depocentro Cerro Cóndor representa la secuencia estratigráfica del Jurásico continental más completa de la cuenca de Cañadón Asfalto y de Sudamérica austral. Se sitúa en la Patagonia extraandina, en ambas márgenes del río Chubut medio. La sedimentación en esta cuenca pull apart, acompañada por efusiones de basalto olivínico, comenzó en el Jurásico Medio temprano. Predominan en la Formación Cañadón Asfalto los depósitos lacustres caracterizados por asociaciones de facies carbonáticas y siliciclásticas intercaladas con rocas lávicas en la base y depósitos piroclásticos hacia el techo de la unidad. Se describe el desarrollo de facies a lo largo de un corte norte-sur que abarca las secciones de estancia El Torito y de los cañadones Los Loros, Las Chacritas, Carrizal, Asfalto y Lahuincó. Las facies/microfacies carbonáticas están representadas por mudstones, wackestones,packstones, grainstones y calizas microbialíticas características de ambientes litorales, marginales y palustres. En la Formación Cañadón Asfalto se distinguen un miembro inferior (Las Chacritas, constituido por calizas, lutitas, areniscas y conglomerados, intercalados con basaltos olivínicos y por otro superior (Puesto Almada compuesto por tobas, tufitas, lutitas y areniscas. El primero es portador de una asociación palinológica de edad bajociano-bathoniana y el segundo de dinosaurios de edad tithoniana. Se describen detalladamente e ilustran las secciones estratigráficas de ambos miembros de la formación en sus localidades tipo, cañadón Las Chacritas y estancia el Torito y se reconstruyen los paleoambientes del depocentro desde el Aaleniano al Tithoniano. La edad del miembro Puesto Almada en su localidad tipo se obtuvo mediante una datación radimétrica (K/Ar de biotitas provenientes de una delgada capa de toba volcánica (147,1 ± 3,3 Ma, Tithoniano proveniente de la parte superior de la unidad.

  11. Los niveles glauconíticos de la Formación Salamanca, Chubut: su efectividad agronómica como fuente alternativa de fertilizante potásico

    Directory of Open Access Journals (Sweden)

    Liliana N Castro

    2010-05-01

    Full Text Available Las secuencias marinas del Maastrichtiano-Paleoceno inferior representadas por la Formación Salamanca y unidades equivalentes, presentan niveles con glauconita que podrían suplir parcialmente las importaciones de potasio para uso en la industria de fertilizantes. La prospección y muestreo se realizó en las nacientes del río Chico, Chubut, donde los espesores de los niveles glauconíticos alcanzan 20 metros. El trabajo se dividió en fases: fase 1, prospección, muestreo y análisis sedimentológicos y químicos de rutina; fase 2a, ensayos de concentración y tratamiento, y fase 2b, ensayos agronómicos donde se compara la efectividad agronómica de las areniscas glauconíticas (GL con el fertilizante potásico tradicional (KCl. Estos últimos se realizaron en cámara de cultivo, con las fracciones 125 μm y 250 μm, (2,85 y 2,82 % K2O respectivamente de GL y con KCl, variando las dosis aplicadas, más una muestra testigo resultando en total 7 tratamientos. A lo largo de las 4 cosechas no se observó un comportamiento diferencial significativo entre GL1, GL2 (125 y el testigo. Ambos tratamientos de GL 250 μm presentaron una mayor biomasa acumulada, superando al testigo en un 44 y 60 % respectivamente. Como conclusión, los tratamientos con GL (125 presentaron resultados poco diferenciables del testigo, en tanto que en GL (250 los valores alcanzados superaron a los obtenidos con la fertilización con KCl. Probablemente la mayor participación de feldespato potásico junto a un incremento en la velocidad de lixiviación por riego en la fracción 125 μξm origine el rendimiento diferencial observado. La gran extensión areal de la Formación Salamanca y la continuidad de los niveles glauconíticos alienta a continuar su evaluación como fertilizante o enmienda.

  12. ANÁLISIS ARQUEOFAUNÍSTICO DEL SITIO PASO DEL TALA (GOYA, CORRIENTES, ARGENTINA / Zooarchaeological study of faunal remains from Paso del Tala site (Goya, Corrientes, Argentina

    Directory of Open Access Journals (Sweden)

    Carolina Barboza

    2014-12-01

    Full Text Available En este trabajo se presentan los resultados del estudio de los restos arqueofaunísticos procedentes del sitio Paso del Tala (Goya, Corrientes, Argentina. Los mismos evidencian la ocupación por parte de grupos prehispánicos en el sector de islas de la llanura aluvial del Paraná Medio durante el Holoceno tardío (356 ± 41 años AP. Se realizó la estimación de la composición anatómica y taxonómica de los conjuntos; se examinaron diferentes aspectos tafonómicos y se evaluaron las modificaciones antrópicas. Los resultados indican que los taxones que habrían sido más explotados por estos grupos están representados principalmente por aquellos característicos de los ambientes fluviales de la zona. Entre ellos se destaca la presencia de especímenes correspondientes a distintas especies de peces, seguidos por mamíferos y roedores, entre los que es importante mencionar la presencia de Hydrochoerus hydrochaeris. Los trabajos de campo permitieron recuperar además del material faunístico, objeto de análisis en el presente trabajo, abundante cantidad de material cerámico, seguido por restos de carbón, material lítico, entre otros. Palabras clave: Zooarqueología, Cazadores-recolectores-pescadores, Llanura aluvial del Paraná Medio, Sector de Islas, Holoceno tardío.   Zooarchaeological study of faunal remains from Paso del Tala site (Goya, Corrientes, Argentina   Abstract This paper presents the analysis of faunal assemblages from Paso del Tala site (Goya, Corrientes, Argentina. This provides new information about hunter-gatherer-fisher occupations in Middle Parana islands during the Late Holocene (356 ± 41 years BP. Remains were identified with regard to anatomy and taxonomy. The focus of the analysis was to differentiate anthropic modification and the action of other agents or taphonomic processes. As a result, the importance of fluvial resources was inferred. Among the taxa that have been identified, fishes, mammals and rodents

  13. Reptiles escamosos (Squamata del Pleistoceno Medio del Norte de la ciudad de Mar del Plata (provincia de Buenos Aires, Argentina

    Directory of Open Access Journals (Sweden)

    Santiago Brizuela

    2015-05-01

    Full Text Available In this study, we describe two fossil remains of squamate reptiles found in Middle Pleistocene outcrops at the northern marine cliffs of the city of Mar del Plata (Buenos Aires province. The specimens were found forming a taphocenosis with remains of other microvertebrates (amphibians, mammals and birds. The reptiles recognized in the association are represented by remains of an undetermined colubrid, and the anguid Ophiodes sp. This latter finding represents the first fossil record for the family Anguidae exhumed in Argentina.

  14. Intercultural Citizenship Education in an EFL Online Project in Argentina

    Science.gov (United States)

    Porto, Melina

    2014-01-01

    In this article, I describe an online intercultural citizenship experience in an English as a Foreign Language (EFL) classroom in Argentina. An action research project on the Malvinas/Falklands war fought between Argentina and the UK in 1982 was carried out in 2012. Through a comparative methodology involving Argentine and English foreign language…

  15. Argentina v globalizačních procesech

    OpenAIRE

    Chervets, Tamara

    2009-01-01

    The process of globalization is a very important issue these days. This work will describe the process of globalization in Argentina, especially its economic aspect (foreign direct investments, export and import of goods and services, migration of labor force). I will also mention the history of its development and Argentina's membership in most important international and regional organizations.

  16. Prospect for Development of Open Access in Argentina

    Science.gov (United States)

    Miguel, Sandra; Bongiovani, Paola C.; Gomez, Nancy D.; Bueno-de-la-Fuente, Gema

    2013-01-01

    This perspective article presents an overview of the Open Access movement in Argentina, from a global and regional (Latin American) context. The article describes the evolution and current state of initiatives by examining two principal approaches to Open Access in Argentina: "golden" and "green roads". The article will then turn its attention to:…

  17. Computing and Education in Argentina, Uruguay and Paraguay.

    Science.gov (United States)

    Sadowsky, Manuel

    Although the report is specifically about Argentina, Uruguay and Paraguay, the considerations presented are valid for all of Latin America. In September, 1969, Argentina had approximately 200 electronic computers. The annual growth is estimated at 15-20% and the implementation of teleprocessing and time-sharing systems have made evident the…

  18. Argentina Imp Anti-dumping Duties on Tires from China

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    On June 22, Argentina made the final anti-dumping adjudication once tires from China; on July 6, the Argentina authorities released the No. 221 resolution in 2011 issued by the Ministry of Industry: Impose 23% anti-dumping duties off estate car tires, 10% on the tires of machinery or vehicles used for agriculture and forestation,

  19. Middle East Respiratory Syndrome

    Centers for Disease Control (CDC) Podcasts

    2014-07-07

    This podcast discusses Middle East Respiratory Syndrome, or MERS, a viral respiratory illness caused by Middle East Respiratory Syndrome Coronavirus—MERS-CoV.  Created: 7/7/2014 by National Center for Immunization and Respiratory Diseases (NCIRD).   Date Released: 7/7/2014.

  20. DEFINING THE MIDDLE CLASS

    Institute of Scientific and Technical Information of China (English)

    WANG HAIRONG

    2011-01-01

    China's cities housed more than 230 million middle-class residents in 2009ot 37 percent of the urban population,according to the 2011 Blue Book of Cities in China released on August 3.In China's main urban centers,Beijing and Shanghai,the middle class accounted for 46 percent and 38 percent,respectively,of the local population.

  1. DEFINING THE MIDDLE CLASS

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    Classifying the middle class remains controversial despite its alleged growth China’s cities housed more than 230 million middle-class residents in 2009 or 37 percent of the urban population,according to the 2011 Blue Book of Cities in China released on August 3.

  2. Bibliografia Bibliotecologica Argentina [Hasta 1967] (A Bibliography of Library Science in Argentina [to 1967]).

    Science.gov (United States)

    Matijevic, Nicolas, Comp.

    A guide to library services, management, and organization is offered to professionals in this comprehensive bibliography, written in Spanish, of approximately 2500 items. Published by the Universidad Nacional del Sur (The National University of the South) in Bahia Blanca, Argentina, the list covers books, articles, monographs, manuals, catalogs,…

  3. La familia Cyatheaceae (Pteridophyta en Argentina The family Cyatheaceae (Pteridophyta in Argentina

    Directory of Open Access Journals (Sweden)

    Gonzalo J Marquez

    2010-06-01

    Full Text Available La familia Cyatheaceae comprende alrededor de 500 especies de helechos arborescentes. Su distribución es pantropical y en Argentina se encuentra representada por 4 especies, reunidas en los géneros Alsophila y Cyathea: A. setosa, A. odonelliana, C. atrovirens y C. delgadii. En este trabajo se presenta una actualización de la información disponible hasta el momento referente a estas especies. Se exponen microfotografías de las esporas, que presentan la superficie con lomos en Alsophila y con cordones en Cyathea. Se ilustran los indusios y escamas de la base de los pecíolos, que son de importancia fundamental para la diferenciación de las especies estudiadas. Asimismo se presenta un mapa de distribución y una clave de las especies que crecen en Argentina.The family Cyatheaceae comprises about 500 species of tree ferns. Their distribution is pantropical and in Argentina is represented by four species, grouped in genera Alsophila y Cyathea: A. setosa, A. odonelliana, C. atrovirens and C. delgadii. In this paper, an update of the available information of the mentioned species is presented. A key to diferentiate the species growing in Argentina, their descriptions and a distribution map are also given. Spores are ridged in Alsophila and with rodlets in Cyathea. Indusia and scales of petiole basis are also illustrated.

  4. Cadenas productivas y disponibilidad de alimentos en Argentina Productive chains and food availability in Argentina

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    Malena Giai

    2010-06-01

    Full Text Available En abril de 2009 se conformó en la Asociación Argentina de Dietistas y Nutricionistas Dietistas el Grupo de Estudio sobre Soberanía Alimentaria, constituido por un grupo de Licenciados en Nutrición con interés en el tema. Como primer objetivo, el Grupo se propuso estudiar tres temas: "el Derecho a la Alimentación", "la Producción y Disponibilidad de alimentos en Argentina" y "la Canasta Básica de Alimentos". En el presente artículo se expone un resumen de los avances en el segundo tema mencionado.In April 2009, was formed in the Argentina Association of Dieticians and Nutritionists Dietitians the Study Group on Food Sovereignty, established by a group of graduates in nutrition with interest in the subject. As a first objective, the Group was to examine three issues: "The Right to Food", "Production and Availability of food in Argentina" and "Basic Food Basket." This article is a summary of progress on the second topic mentioned.

  5. Tobacco industry targeting youth in Argentina

    Science.gov (United States)

    Braun, S; Mejia, R; Ling, P M; Pérez-Stable, E J

    2013-01-01

    Background/aim Argentina has one of the highest cigarette smoking rates among both men and women in the Americas and no legislated restrictions on tobacco industry advertising. The tobacco industry has traditionally expanded markets by targeting adolescents and young adults. The objective of this study was to determine whether and how the tobacco industry promotes cigarettes to adolescents in Argentina. Methods We conducted a systematic search of tobacco industry documents available through the internet dated between 1995 and 2004 using standard search terms to identify marketing strategies in Argentina. A selected review of the four leading newspapers and nine magazines with reported high readership among adolescents was completed. The selected print media were searched for tobacco images and these were classified as advertisements if associated with a commercial product or as a story if not. Results The tobacco industry used market segmentation as a strategy to target Argentinean consumers. British American Tobacco (BAT) undertook a young adult psychographic study and classified them as “progressives”, “Jurassics” or “conservatives” and “crudos” or “spoiled brats”. BAT marketed Lucky Strike to the “progressives” using Hollywood movies as a vehicle. The tobacco industry also targeted their national brands to the conservatives and linked these brands with “nationalistic values” in advertising campaigns. Philip Morris promoted Marlboro by sponsoring activities directed at young people and they launched the 10 cigarettes packet as a starter vehicle. Conclusions The tobacco industry used psychographic segmentation of the population and developed advertising strategies focused on youth. Tobacco control researchers and advocates must be able to address these strategies in counter-marketing interventions. PMID:18299308

  6. JOURNALISM STUDIES IN ARGENTINA: BACKGROUND AND QUESTIONS

    Directory of Open Access Journals (Sweden)

    Adriana Amado

    2014-06-01

    Full Text Available This article summarizes the background of empirical journalism studies in Argentina.  In recent publications, researchers have consistently underscored the lack of data on the profession and the scarce development of theoretical frameworks related to journalism studies.  The local investigations have prioritized approaches and methods that do not give the whole picture of the population of journalists. Most of the research tends to equate media analysis and media messages with journalism study and keeps on failing to provide data that allows for learning about the working conditions and the professional profile of the Argentinean journalists.

  7. Aedes aegypti resistance to temephos in Argentina.

    Science.gov (United States)

    Seccacini, Emilia; Lucia, Alejandro; Zerba, Eduardo; Licastro, Susana; Masuh, Hector

    2008-12-01

    Monitoring of resistance of Aedes aegypti to temephos was implemented in the provinces of Formosa and Misiones, Argentina, as a response to the need to improve the vigilance for the dengue vector in areas of high risk of dengue. Eggs collected in each locality were reared, and susceptibility to temephos was assayed using larval bioassays. A weak decrease in susceptibility of larvae to temephos was observed in Clorinda and Puerto Iguazú, indicating an incipient resistance with a resistance ratio of 3. No control failures have been observed yet, and this program should allow the early detection of a real problem in our country.

  8. Las ciencias del mar en la Argentina

    OpenAIRE

    Ogden, J.C.; Podestá, G.; Zingone, A.; Wiebe, W. J.; Myers, R.A.

    2003-01-01

    La situación de las ciencias del mar en la Argentina se puede caracterizar como una de ‘excelencia en aislamiento’. El tema dominante de las discusiones mantenidas por el comité que preparó este informe fue la virtual inexistencia de coordinación entre programas de investigación, equipo para realizar tareas de campo y personal científico y de apoyo en las instituciones. La coordinación que existe ocurre gracias a enormes esfuerzos individuales y a relaciones personales. Si bien en muchos luga...

  9. Los vaivenes de la democracia Argentina

    OpenAIRE

    Quiroga, Hugo

    2008-01-01

    Un conjunto de acontecimientos políticos, de signos adversos y propicios, recorrió el siglo XX en Argentina. Esa experiencia nos ha enseñado, con su historia repetida de fracasos (desobediencia de los militares al poder civil, proscripciones políticas, fraude electoral), que la legitimidad de la democracia requiere tanto de instituciones estables como de la conformidad de la sociedad con las reglas de la sucesión pacífica del poder, exigencias que otorgan validez al régimen ...

  10. Clientelism and Political Control in Rural Argentina

    Directory of Open Access Journals (Sweden)

    Fernando Landini

    2012-07-01

    Full Text Available Scholarship on clientelism frequently addresses political clientelism using strong ideological presuppositions and/or neglecting its subjective dimension. In this article I explore political clientelism in a rural community of the province of Formosa, Argentina from the peasants' point of view. The results suggest that peasants consider the clientelist relation as one that recognizes their personal needs, while the bureaucracy of the state does not. Thus, they perceive clientelist ties as legitimate, criticizing only the fact that the provision of resources by patrons takes place only during elections.

  11. IEA studies Middle East

    International Nuclear Information System (INIS)

    Oil production policy in most of the major producing countries of the Middle East looks likely to change as a result of financial constraints and pressures on demand. This -implicitly rather than explicitly - is perhaps the main conclusion to be drawn from the International Energy Agency's (IEA) magisterial study on Middle East oil and gas, in which the production capacities, energy development policies and the structural economic problems of six major oil and gas producers in the region are examined. ''Middle East Oil and Gas'' is available from the IEA/OECD Publications Service. (author)

  12. On middle cube graphs

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    C. Dalfo

    2015-10-01

    Full Text Available We study a family of graphs related to the $n$-cube. The middle cube graph of parameter k is the subgraph of $Q_{2k-1}$ induced by the set of vertices whose binary representation has either $k-1$ or $k$ number of ones. The middle cube graphs can be obtained from the well-known odd graphs by doubling their vertex set. Here we study some of the properties of the middle cube graphs in the light of the theory of distance-regular graphs. In particular, we completely determine their spectra (eigenvalues and their multiplicities, and associated eigenvectors.

  13. On middle cube graphs

    OpenAIRE

    Dalfo, C.; Fiol, M.A.; Mitjana, M.

    2015-01-01

    We study a family of graphs related to the $n$-cube. The middle cube graph of parameter k is the subgraph of $Q_{2k-1}$ induced by the set of vertices whose binary representation has either $k-1$ or $k$ number of ones. The middle cube graphs can be obtained from the well-known odd graphs by doubling their vertex set. Here we study some of the properties of the middle cube graphs in the light of the theory of distance-regular graphs. In particular, we completely determine their spectra (eigenv...

  14. Middle atmospheric electrodynamics

    Science.gov (United States)

    Kelley, M. C.

    1983-01-01

    A review is presented of the advances made during the last few years with respect to the study of the electrodynamics in the earth's middle atmosphere. In a report of the experimental work conducted, attention is given to large middle atmospheric electric fields, the downward coupling of high altitude processes into the middle atmosphere, and upward coupling of tropospheric processes into the middle atmosphere. It is pointed out that new developments in tethered balloons and superpressure balloons should greatly increase the measurement duration of earth-ionospheric potential measurements and of stratospheric electric field measurements in the next few years. Theoretical work considered provides an excellent starting point for study of upward coupling of transient and dc electric fields. Hays and Roble (1979) were the first to construct a model which included orographic features as well as the classical thunderstorm generator.

  15. Yugoslav teachers in Argentina 1939-1944

    Directory of Open Access Journals (Sweden)

    Stefanović-Banović Milesa

    2014-01-01

    Full Text Available In this paper we present reports of Yugoslav teachers who held classes to immigrants in Argentina 1939-1944, organized by the government of Kingdom of Yugoslavia. Teachers’ reports to Yugoslav Embassy in Buenos Aires testify of Kingdom of Yugoslavia efforts to oppose assimilation and promote and strengthen “Yugoslav national unity”. The reports also describe general social circumstances of Yugoslav immigrants, show various details from their everyday life and contain valuable data on numerous political, economic, social and cultural problems of this diaspora in Argentina and their relationship with motherland. We believe that archive materials presented in this paper opens numerous questions which could be topics of separate researches. Some of them could be the following: To which extent the teachers’ reports represented the actual situation and to which they were shaped to match policy and expectations of Kingdom of Yugoslavia? What was the actual influence of teachers to spreading the “national unity” among immigrants? Have their work left trace in Yugoslav diaspora and in which way? Beside all of the open issues, it is certain that teachers’ reports contain valuable data on immigrants’ everyday life, curriculum, schooling conditions, relationship with motherland, etc. [Projekat Ministarstva nauke Republike Srbije, br. 47016: Interdisciplinarno istraživanje kulturnog i jezičkog nasleđa Srbije. Izrada multimedijalnog internet portala "Pojmovnik srpske kulture"

  16. [Dengue vaccines. A reality for Argentina?].

    Science.gov (United States)

    Orellano, Pablo W; Salomón, Oscar D

    2016-01-01

    Dengue outbreaks have occurred yearly in Argentina since 1998. A number of candidate vaccines have been tested in endemic countries. The most advanced one was licensed in three countries of Latin America for children over 9 years of age. In the present article the benefits and drawbacks of these vaccines as well as the challenges for the implementation of a vaccination strategy in Argentina are discussed. Furthermore, a risk stratification strategy with new criteria and a multidisciplinary vision is suggested as a possible path for the assessment of the pertinence of a vaccination program in areas showing the highest risk of dengue transmission and/or for people at the greatest risk of developing severe dengue. It is also suggested that the definition regarding the status of endemicity should take into account the local realities. Finally, this paper proposes a broad discussion on the evidences, the expected impact and instrumental aspects that would be involved in the incorporation of a dengue vaccine, marketed or in development, into the national immunization program, and especially which subpopulation should be targeted for the immunization strategy to be cost-effective.

  17. Derechos humanos y sexualidad en la Argentina

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    Mario Pecheny

    2006-12-01

    Full Text Available Este artículo presenta un panorama de la situación de los derechos que tienen que ver con la sexualidad, en la Argentina contemporánea. Basándose principalmente en la legislación positiva, se presenta en primer lugar una síntesis del sistema legal y político, resumiendo a continuación el proceso de inclusión de los derechos sexuales, sobre todo desde 1983, cuando se recuperó la democracia. Las temáticas abordadas son: igualdad civil y conyugalidad, orientación sexual e identidad de género, reproducción, aborto, violencia de género y violencia sexual, VIH/sida, y explotación y trabajo sexual. El artículo concluye con una reflexión sobre las principales deudas pendientes.This paper presents an overview of the situation concerning the rights related to sexuality in contemporary Argentina. Based specially on the positive legislation, it is primarily presented a synthesis of the legal and political system. Next, the paper summarizes the process of inclusion of the sexual rights, mainly since 1983, when democracy has been recovered. The following issues are addressed: civil equality and conjugality; sexual orientation and gender identity; reproduction; abortion; gender a sexual violence; HIV/Aids; and exploitation and sexual work. The paper ends with a consideration about the still remaining doubts.

  18. Spent Fuel Management of NPPs in Argentina

    International Nuclear Information System (INIS)

    There are two Nuclear Power Plants in operation in Argentina: “Atucha I” (unique PHWR design) in operation since 1974, and “Embalse” (typical CANDU reactor) which started operation in 1984. Both NPPs are operated by “Nucleoeléctrica Argentina S.A” which is responsible for the management and interim storage of spent fuel till the end of the operative life of the plants. A third NPP, “Atucha II” is under construction, with a similar design of Atucha I. The legislative framework establishes that after final shutdown of a NPP the spent fuel will be transferred to the “National Atomic Energy Commission”, which is also responsible for the decommissioning of the Plants. In Atucha I, the spent fuel is stored underwater, until another option is implemented meanwhile in Embalse the spent fuel is stored during six years in pools and then it is moved to a dry storage. A decision about the fuel cycle back-end strategy will be taken before year 2030. (author)

  19. Central Argentina de Elementos Modulares (CAREM)

    International Nuclear Information System (INIS)

    CAREM (Central ARgentina de Elementos Modulares) is an Argentine project to develop, design and construct an innovative, simple and small nuclear power plant (NPP). This plant has an indirect cycle reactor with distinctive and characteristic features that greatly simplify the design and contribute to a high safety level. Some of the high-level design characteristics of the plant are: an integrated primary cooling system; self-pressurized primary system and safety systems relying on passive features. CAREM is a CNEA (Comision Nacional de Energia Atomica) project, which has been jointly developed with INVAP, an Argentine company. The CAREM concept was first presented in March 1984, in Lima, Peru, during the IAEA's conference on small and medium sized reactors. Chronologically CAREM was one of the first of the present new generation of reactor designs. The first step of this project is the construction of the prototype of about 27 MW(e) (CAREM-25). This project allows Argentina to sustain activities in nuclear power plant design, assuring the availability of updated technology in the mid-term. The design basis is supported by the cumulative experience acquired in research reactor design, construction and operation and pressurized heavy water reactor (PHWR) operation, as well as development of advanced design solutions. The Generation IV International Forum (GIF) recognized CAREM as an international near term deployment (INTD) reactor

  20. Validation of the PASAT in Argentina.

    Science.gov (United States)

    Vanotti, Sandra; Eizaguirre, Maria Barbara; Cores, Evangelina Valeria; Yastremis, Cecilia; Garcea, Orlando; Salgado, Pablo; Cáceres, Fernando

    2016-01-01

    The Paced Auditory Serial Addition Test (PASAT) is one of the most used neuropsychological tests to assess information processing speed and working memory in brain injured patients. This study was carried out with the purpose of obtaining normative data for the PASAT-3″ in a healthy Argentinean population, which would result in a reference control population. The PASAT-3″ was administered in a sample of 296 healthy voluntary subjects, born and living in Argentina. The age range went from 20 to 70 years-old. The level of education was 0 to 13 or more years of schooling. The sample obtained a mean of 44.60 (SD = 10.72) in the PASAT-3″. It was found that the score obtained in the PASAT-3″ was related to the age and the level of instruction of the participants. Their performance diminished as age increased and, conversely, it increased as the level of instruction was higher. Normative data was obtained for a Latin American population from Argentina. Percentile distributions obtained by decades of age and different levels of education should be considered as useful reference values for clinicians and investigators when applying the PASAT-3″ to assess cognitive function in different pathologies. PMID:26980661

  1. [Dengue vaccines. A reality for Argentina?].

    Science.gov (United States)

    Orellano, Pablo W; Salomón, Oscar D

    2016-01-01

    Dengue outbreaks have occurred yearly in Argentina since 1998. A number of candidate vaccines have been tested in endemic countries. The most advanced one was licensed in three countries of Latin America for children over 9 years of age. In the present article the benefits and drawbacks of these vaccines as well as the challenges for the implementation of a vaccination strategy in Argentina are discussed. Furthermore, a risk stratification strategy with new criteria and a multidisciplinary vision is suggested as a possible path for the assessment of the pertinence of a vaccination program in areas showing the highest risk of dengue transmission and/or for people at the greatest risk of developing severe dengue. It is also suggested that the definition regarding the status of endemicity should take into account the local realities. Finally, this paper proposes a broad discussion on the evidences, the expected impact and instrumental aspects that would be involved in the incorporation of a dengue vaccine, marketed or in development, into the national immunization program, and especially which subpopulation should be targeted for the immunization strategy to be cost-effective. PMID:27028058

  2. Fusarium temperatum and Fusarium subglutinans isolated from maize in Argentina.

    Science.gov (United States)

    Fumero, María Verónica; Reynoso, María Marta; Chulze, Sofía

    2015-04-16

    Fusarium temperatum and Fusarium subglutinans isolated from the Northwest region (NOA region) of Argentina were characterized using a polyphasic approach based on morphological, biological and molecular markers. Some interfertility between the species was observed. The phylogenetic analysis showed that the two species represented two clades strongly supported by bootstrap values. The toxigenic profile of the strains was also determined. F. temperatum strains were fusaproliferin and beauvericin producers, and only some strains were fumonisin B1 producers. All F. subglutinans strains produced fusaproliferin but none produced beauvericin, indicating a potential toxicological risk from maize harvested in the NOA region of Argentina. This study provides new information about F. temperatum isolated from maize in Argentina.

  3. Horizontalidad, autogestión y protagonismo en Argentina

    Directory of Open Access Journals (Sweden)

    Marina Sitrin

    2010-04-01

    Full Text Available Este artículo trata los movimientos sociales autónomos que surgieron después de la crisis económica y la posterior rebelión popular en Argentina en diciembre de 2001. Los movimientos autónomos en la Argentina, como tantos movimientos en el mundo de hoy, son movimientos basados en la creación de nuevas relaciones sociales y comunidades ahora, al mismo tiempo que proyectan nuevas sociedades y las relaciones en y para el futuro. Son movimientos con una concepción diferente del tiempo y el espacio. Son movimientos que entienden lo individual y lo colectivo como vinculados entre sí.Hay mucho en común entre la experiencia en la Argentina y las prácticas e ideas anarquistas. Eso no significa que los que están creando nuevas relaciones y comunidades en la Argentina sean anarquistas. Lo que este artículo intenta hacer es basarse en las experiencias de los movimientos sociales argentinos para iniciar una reflexión sobre las prácticas e ideas que los anarquistas pueden prestar a los distintos movimientos y comunidades autónomas; y, a su vez, sobre lo que los movimientos autónomos en la Argentina puede dar a las ideas y prácticas anarquistas.Palabras Clave: movimientos sociales, rebelión popular, Argentina, Anarquismo, movimientos autónomos_____________________ABSTRACT:This article discusses the autonomous social movements that arose after the economic crisis and subsequent popular rebellion in Argentina in December of 2001. The autonomous movements in Argentina, as so many movements around the world today, are movements based on creating new social relationships and communities now, while simultaneously creating new societies and relationships in and for the future. They are movements with a different conception of time and place. They are movements that see the individual and the collective as linked to one another.There is a great deal in common with the experience in Argentina and anarchist practices and ideas. That does not make

  4. Overview and perspectives for Open Access development in Argentina

    Directory of Open Access Journals (Sweden)

    Sandra Miguel

    2013-04-01

    Full Text Available This paper provides an overview and perspectives for development of the Open Access movement in Argentina, within the global and regional (Latin American context. It outlines the evolution and current state of initiatives around the two main approaches to Open Access, the golden and green roads. The main Open Access policies and support of OA movement by governments in Latin American region, and particularly in Argentina, are highlighted, while recent studies on publishing practices and authors’ positions regarding Open Access are presented. The paper concludes that the prospects for development of OA in Argentina, both through golden and green roads are favorable, with their strengths and shortcomings

  5. Rescuing Middle School Astronomy

    Science.gov (United States)

    Mayo, L. A.; Janney, D.

    2010-12-01

    There is a crisis in education at the middle school level (Spellings, 2006). Recent studies point to large disparities in middle school performance in schools with high minority populations. The largest disparities exist in areas of math and science. Astronomy has a universal appeal for K-12 students but is rarely taught at the middle school level. When it is taught at all it is usually taught in isolation with few references in other classes such as other sciences (e.g. physics, biology, and chemistry), math, history, geography, music, art, or English. The problem is greatest in our most challenged school districts. With scores in reading and math below national averages in these schools and with most state achievement tests ignoring subjects like astronomy, there is little room in the school day to teach about the world outside our atmosphere. Add to this the exceedingly minimal training and education in astronomy that most middle school teachers have and it is a rare school that includes any astronomy teaching at all. In this presentation, we show how to develop and offer an astronomy education training program for middle school teachers encompassing a wide range of educational disciplines that are frequently taught at the middle school level. The prototype for this program was developed and launched in two of the most challenged and diverse school systems in the country; D.C. Public Schools, and Montgomery County (MD) Public Schools.

  6. Tabaquismo durante el embarazo en Argentina y Uruguay Smoking during pregnancy in Argentina and Uruguay

    Directory of Open Access Journals (Sweden)

    Fernando Althabe

    2008-02-01

    Full Text Available Argentina y Uruguay están entre los países con mayor proporción de mujeres jóvenes fumadoras. Se desconoce cuál es la proporción exacta de ellas que fuman durante el embarazo así como las características de las que dejan de fumar y las que continúan fumando durante el embarazo. Realizamos una encuesta administrada por un/a entrevistador/a a 1512 mujeres embarazadas de 18 años o mayores (796 en Argentina; 716 en Uruguay, que concurrían a control prenatal en hospitales públicos de grandes conglomerados urbanos. 44% de las mujeres en Argentina y 53% en Uruguay habían sido o eran fumadoras. Durante el embarazo, 11% de las mujeres en Argentina y 18% en Uruguay continuaron fumando. En ambos países, la proporción de mujeres que vive con fumadores, permite fumar en el hogar y regularmente o siempre se encuentra en lugares cerrados con personas que estén fumando fue 49%, 46% y 20% entre las mujeres que nunca fumaron, 67%, 60% y 32% entre las que dejaron, y 78%, 75% y 52% entre las que continuaron fumando respectivamente. El estudio confirma un importante problema de salud pública y documenta que la exposición ambiental persiste en subgrupos de mujeres, aun en aquéllas que dejaron de fumar. Es importante que el sector de salud pública provea acceso a programas efectivos para dejar de fumar durante el embarazo. Cualquier nueva intervención a desarrollar que intente tener un éxito al menos moderado y sostenible, debiera incluir componentes que actúen sobre el entorno fumador de la mujer embarazada que fuma.Argentina and Uruguay are among the countries in which a large proportion of young women smoke. The rate of smokers during pregnancy in both countries is not well known, and data on the characteristics of women who quit smoking during pregnancy compared to those who continue smoking are not available. We conducted a survey including 1512 pregnant women >18 years old (796 in Argentina; 716 in Uruguay, during antenatal visits in

  7. Aclerdidae (Hemiptera: Coccoidea de la Argentina Aclerdidae (Hemiptera: Coccoidea from Argentina

    Directory of Open Access Journals (Sweden)

    María Cristina Granara de Willink

    2004-12-01

    Full Text Available Se describen e ilustran la hembra adulta, el primer estadio y un estadio intermedio de la hembra de Aclerda colihuensis sp. nov., encontrada sobre Chusquea culeou una Bambusaceae, de los bosques andinopatagónicos. Se brinda una clave para las especies de Aclerda Signoret, de la región Neotropical. Se cita esta familia por primera vez para la Argentina.The female, the first stage, and intermediate female stages of Aclerda colihuensis n. sp., are described and illustrated. A key to the neotropical species for Aclerda Signoret is given. This is the first family report from Argentina. The new species was found on Chusquea culeou Desv. Bambusaceae, from the Patagonia forest.

  8. La extensa zona de deslizamientos de la escarpa oriental de la Pampa de Salamanca, Chubut, entre los 45°00´S y 45°45´S

    Directory of Open Access Journals (Sweden)

    E.F. González Díaz

    2004-12-01

    Full Text Available Durante la ejecución del mapa geomorfológico de la provincia del Chubut, se identificó entre las latitudes de los 45°00´S y 45°45´S y a lo largo de unos 70-75 km, una extensa faja de deslizamientos adyacente y prácticamente paralela a la escarpa oriental de la Pampa de Salamanca. Los deslizamientos, con marcado predominio de deslizamientos rotacionales, perturban el tramo superior de la secuencia sedimentaria terciaria. En los niveles arcillosos de la Formación Chenque (= Formación Patagonia, se localizarían las superficies de despegue o corte (shear para su ocurrencia. Diferencias entre sus rasgos morfológicos, tipológicos y el promotor sugerido permiten proponer cuatro zonas (I, II, III y IV de deslizamientos. La tipología aquí propuesta es provisoria, siendo sólo una base de futuras elaboraciones. Cronológicamente se diferenciaron dos conjuntos de deslizamientos: unos antiguos, más extensos y de mayor volumen, con marcadas evidencias de erosión y aquellos modernos, más reducidos, que con excelente conservación de su morfología primaria, son producto de posteriores removilizaciones acontecidas en sectores de los antiguos, que se expresan esencialmente bajo la forma de flujos (corrientes de tierra o earthflows y más ocasionalmente como deslizamientos rotacionales secundarios (slumps. Entre los de mayor edad, los de la zona I, son definidos como afines en general a un deslizamiento rotacional con una fase distal de flujo; ocasionalmente habrían superado los límites del actual acantilado marino. A pesar de esta primera apreciación, no se descarta su consideración como ejemplos de expansiones laterales (lateral spreads. Los de la zona II, son definidos como deslizamientos rotacionales múltiples retrogradantes. Aquellos de la zona III integran un conjunto de deslizamientos con un marcado control estructural (N50°E, en sus desprendimientos. La zona IV, compone una estrecha y continua faja adyacente a la Pampa de

  9. 14C reservois effect as a sensitive indicator of shore circulation changes in the Patagonic Littoral of Argentina

    International Nuclear Information System (INIS)

    gathering data for a local or at least a regional calibration (Albero et al. 1986, 1987; Dye, 1994; Figini, 1999). Many works has been made at this concern mainly in the Northern Hemisphere (Dye, 1994; Ingram and Southon, 1996), but the information is scarce in the South Hemisphere and particularly in Argentina. For the Beagle channel does exist estimations of 620±140y (Albero et al., 1986) referred to an average among several marine species. In addition a value of 556±61y was found at the same region for Mytilus sp. (Albero et al., 1987). This last value has been used in the literature to correct 14C ages on marine organisms of that zone. This work presents the results of calibrating the present LRE on localities from the Patagonic-Fueguine Atlantic Littoral: Punta Norte, Golfo San Jose and Playa Union in the Chubut province, Punta Bustamante and Cabo Virgenes in Santa Cruz, and Bahia San Sebastian in Tierra del Fuego. Additionally it is informed an age obtained in Necochea city (Buenos Aires province.) and other from the Livingston Island (Antarctica). Till we have more detailed information, we assume that the LRE variations would have keep constant, at least in the last 3 or 4 millennia, when significant environmental changes that could affect the oceanic circulation did not occur (au)

  10. Additional information for Leptoglossus impictus (Stål 1859) (Hemiptera: Heteroptera: Coreidae: Coreinae: Anisoscelini) from Patagonia, Argentina.

    Science.gov (United States)

    Diez, Fernando; Espindola, Milton Ruiz; Cornelis, Marcela; Coscarón, María Del Carmen

    2016-01-01

    The Patagonian subregion belongs to the Andean region, and is comprised of two provinces: Central Patagonia and Subandean Patagonia. It extends from central Mendoza, widening through Neuquén, Río Negro, Chubut, and Santa Cruz, to northern Tierra del Fuego, and reaches Chile (Morrone 2006). The knowledge of terrestrial Heteroptera in this region is poor and is limited to a few contributions (e.g. Berg 1979, Breddin 1898, Pennington 1920, Faúndez & Carvajal 2011, Faundez 2015). PMID:27395893

  11. Primer registro de Aulacaspis tubercularis (Hemiptera: Diaspididae en la Argentina First record of Aulacaspis tubercularis (Hemiptera: Diaspididae from Argentina

    Directory of Open Access Journals (Sweden)

    Cristian Amún

    2012-12-01

    Full Text Available Aulacaspis tubercularis Newstead es una especie polífaga que ataca principalmente los cultivos de Mangifera indica. Se registra por primera vez en la Argentina esta especie de insecto. Los ejemplares estudiados fueron recolectados en árboles de mango, en localidades del noroeste argentino, en enero de 2011 y abril de 2012.Aulacaspis tubercularis Newstead is a polyphagous pest that attacks mainly Mangifera indica. This insect species is reported for the first time in Argentina. The studied specimens were collected from mango trees in different places of NW Argentina, in January 2011 and April 2012.

  12. Sociologia, peronismo e esquerda na Argentina Sociology, peronism and left in Argentina

    OpenAIRE

    Carlos R. Etulain

    2007-01-01

    O trabalho discute, o papel do peronismo e os problemas político-ideológicos que ele coloca para a esquerda Argentina. Busca, também, apresentar os principais elementos para uma análise da esquerda frente ao fenômeno do peronismo. Palavras-chave: Peronismo. Esquerda. Trabalhadores. Movimentos sociais. Classes sociais. Capitalismo. Política. This paper presents the role of Peronism and the ideological political problems to be confronted by the Argentinian leftists...

  13. Novelties in Casearia (Flacourtiaceae for Argentina NOVEDADES EN CASEARIA (FLACOURTIACEAE PARA ARGENTINA

    Directory of Open Access Journals (Sweden)

    Héctor A. Keller

    2010-07-01

    Full Text Available

    Casearia obliqua Spreng. (Flacourtiaceae is recorded for the first time to Argentina, based on
    specimens collected beside Iguazú river, in Misiones province. The taxon is here described
    and illustrated. The presence of Casearia gossypiosperma Briq. in Misiones, a tree mentioned
    in 1936 for that province, is here documented by mean herbarium material. A key for identifying
    the argentinean species is included
    Se cita por primera vez para la flora de Argentina, Casearia obliqua Spreng. (Flacourtiaceae,
    sobre la base de ejemplares recolectados junto al río Iguazú, en la provincia de Misiones. Este
    taxón es descripto e ilustrado. Se certifica mediante material de herbario la presencia en
    Misiones de Casearia gossypiosperma Briq., especie arbórea que fue mencionada para dicha
    provincia en 1936. Se incluye una clave para determinar las especies de Casearia de
    Argentina.

  14. The multiple applications of the nuclear techniques in Argentina

    International Nuclear Information System (INIS)

    A review is given of the use of nuclear technology in Argentina, especially in the field of the production of radioisotopes and radiopharmaceuticals, nuclear medicine, and industrial applications. The applications of ionizing radiation are also reviewed

  15. The bloodsucking biting midges of Argentina (Diptera: Ceratopogonidae

    Directory of Open Access Journals (Sweden)

    Gustavo R Spinelli

    2005-04-01

    Full Text Available A key is presented for the identification of the adults of 54 species of bloodsucking ceratopogonids, 51 of which are known inhabitants of Argentina, and Culicoides uruguayensis Ronderos, C. pifanoi Ortiz, and C. trilineatus Fox, which are known to occur in bordering Uruguay and Paraguay. Wing photographs are provided of females of the 45 species of Culicoides. Three new species of Culicoides Latreille from Northeastern Argentina are described and illustrated: C. austroparaensis Spinelli, C. bachmanni Spinelli, and C. williamsi Spinelli. The following six species are recorded for the first time from Argentina and/or bordering localities in Paraguay: Leptoconops brasiliensis (Lutz, C. gabaldoni Ortiz, C. ginesi Ortiz, C. pifanoi Ortiz, C. pseudocrescentis Tavares and Luna Dias, and C. trilineatus; and C. estevezae Ronderos and Spinelli is newly recorded from Misiones province of Argentina. C. lopesi Barretto is excluded from the Argentinean ceratopogonid fauna.

  16. The participation of Argentina in the CTBT verification regime

    International Nuclear Information System (INIS)

    Argentina is among the countries involved in the CTBT with seismic, radionuclide and infra sound stations. In May 1998, a Provisional Agreement was signed between the Argentine Ministry of Foreign Affairs and the Executive Secretary of the Provisional technical Secretariat to allow technicians and equipment of the CTBTO to start the harmonization and upgrade of the monitoring stations located in Argentina. It started, through Instituto de Prevencion Sismica (INPRES), participating with the group of Scientific experts at the Conference of Disarmament. Concerning radionuclide monitoring and infra sound technologies Argentina participates with its stations managed by the Nuclear Regulatory Authority. Participation of Argentina in the CTBT is considered as an excellent opportunity for interchanging information and experiences among Argentine experts and experts from other countries

  17. FLORA ARGENTINA: NOVEDADES EN PRIMULACEAE Argentinian flora: novelties in Primulaceae

    Directory of Open Access Journals (Sweden)

    Sara G. Tressens

    2010-08-01

    Full Text Available

    Anagallis filiformis Cham. & Schltdl., especie no mencionada previamente para la Argentina,
    es citada, descripta e ilustrada. Se señala por primera vez A. arvensis L., ampliamente
    extendida en la Argentina, para las provincias de Corrientes y Misiones. Se incluye una clave
    para la identificación de las cuatro especies de Anagallis presentes en el país
    Anagallis filiformis Cham. & Schltdl., species not previously mentioned for Argentina is
    recorded, described and illustrated. A. arvensis L., largely widespread in Argentina, is reported
    for the first time from Corrientes and Misiones provinces. A key for the identification of the four
    species of Anagallis present in the country is also included

  18. Argentina's regulatory body: its communication activities

    International Nuclear Information System (INIS)

    Full text: The Nuclear Regulatory Authority of Argentina (ARN) is empowered to regulate and control the nuclear activity with regard to radiation and nuclear safety, physical protection and nuclear non-proliferation issues. It must also advise the Executive on issues under its purview. The objective of the Nuclear Regulatory Authority is to establish, develop and enforce a regulatory system applicable to all nuclear activities carried out in Argentina. Two of the goals of this regulatory system are to provide an appropriate standard of protection for individuals against the harmful effects of ionizing radiation, and to maintain a reasonable degree of radiological and nuclear safety in the nuclear activities performed in Argentina. The responsibility of the radiation protection community in performing the tasks to accomplish this goals is twofold. On one hand, it must ensure a high technical quality in performing these functions. It must also provide information on its activities which has to be accurate, comprehensive and understandable. The way a society understands the concept of 'risk' needs to be kept in mind. Risk perception is the subjective judgment that people make about the characteristics and severity of a risk. Cultural theory refers to theories of risk perception that focus on culture, rather than individual psychology as an explanation for differences in risk judgments. It is widely agreed that trust is a key factor in influencing people's perceptions of risk. It is understood there are two main ways trust may impact in risk perceptions: an activity is perceived as more risky if the people or agencies managing it are perceived as untrustworthy; and information presented by trusted sources is given more credibility than information from untrusted sources. One of the primary purposes of ARN's Communication Program is to provide a means whereby those engaged in radiation protection activities may communicate more readily with each other and the public and

  19. CROSSROADS BETWEEN EDUCATION POLICIES AND INDIGENOUS LANGUAGES MAINTENANCE IN ARGENTINA

    Directory of Open Access Journals (Sweden)

    Ana Carolina Hecht

    2010-06-01

    Full Text Available Process of language shift is explained by many researchers since linguistic and anthropological perspectives. This area focuses on the correlations between social processes and changes in systems of use of a language. This article aims to address these issues. In particular, we analyze the links between educational-linguistic policy and the maintenance of the languages spoken in Argentina. In doing so, we explore this field taking into account the linguistic and educational policies implemented about indigenous languages in Argentina.

  20. Determination the atmospheric fallout in the Argentina Republic

    International Nuclear Information System (INIS)

    With the purpose to study the radioactive precipitation present in the Argentina Republic, due to the rehearsal the nuclear weapons in the atmosphere carried out in the past, you implement the environmental sampling outside of the area gives influence the nuclear facilities the Argentina during the years 1996 and 1997. The concentrations were determined Cs 137 and Sr 90 in samples air, radioactive material (rain water), milk, diet standard average and in several foods

  1. Making sense of immigration policy : Argentina, 1870-1930

    OpenAIRE

    Sánchez-Alonso, Blanca

    2010-01-01

    The aim of this paper is to disentangle the different forces shaping Argentine immigration policy from 1870 to 1930. Although immigration restrictions increased over time Argentina remained relatively open to mass migration until the 1930s in contrast with the United States. The quantitative evidence presented here suggests that there were economic reasons to restrict immigration prior to the 1930s, namely rising inequality and a declining demand for workers. Labour in Argentina would have be...

  2. Phylodynamics of vampire bat-transmitted rabies in Argentina

    OpenAIRE

    Torres, C.; Lema, C; DOHMEN, F. GURY; Beltran, F.; NOVARO, L.; S. Russo; Freire, M. C.; Velasco-Villa, A; Mbayed, V. A.; D. M. CISTERNA

    2014-01-01

    Common vampire bat populations distributed from Mexico to Argentina are important rabies reservoir hosts in Latin America. The aim of this work was to analyse the population structure of the rabies virus (RABV) variants associated with vampire bats in the Americas and to study their phylodynamic pattern within Argentina. The phylogenetic analysis based on all available vampire bat-related N gene sequences showed both a geographical and a temporal structure. The two largest groups of RABV vari...

  3. Tareas que realizan los bibliotecarios universitarios en Argentina

    OpenAIRE

    Werner Agazzi; Natalia Tchouldjian

    2011-01-01

    El presente estudio es una investigación descriptiva que pretende conocer las tareas que realizan los bibliotecarios en las bibliotecas universitarias argentinas, abordando el tema desde la perspectiva de las competencias laborales y el actual perfil del bibliotecario universitario. Mediante la utilización de un cuestionario enviado a las direcciones de e-mail de bibliotecas universitarias argentinas se compilaron datos sobre las tareas que realizan los bibliotecarios en esas instituciones. A...

  4. Some historical aspects of plant cytogenetics in Argentina and Uruguay

    Directory of Open Access Journals (Sweden)

    Juan H. Hunziker

    2000-12-01

    Full Text Available A brief account is given of the origin and development of plant cytogenetics in Argentina and Uruguay, along with some of the factors that hampered the development of this area.Uma breve narrativa é dada sobre a origem e desenvolvimento de citogenética em plantas na Argentina e Uruguai, juntamente com alguns fatores que prejudicaram o desenvolvimento desta area.

  5. Reflexiones para una historia del documental en Argentina

    Directory of Open Access Journals (Sweden)

    Carmen Guarini

    2006-12-01

    Full Text Available Documentary cinema has had, in Argentina, an uncertain destination, in some periods it was protagonist, and in others almost disappeared.In this last decade it reached levels of interesting production and quality. It is already a common place to associate this growth to the social situation of crisis since 2001 that overflew in “filmed events”. However, in Argentina documentary possesses a long history that includes fundamental names for its construction.

  6. Middle managers service leadership

    Directory of Open Access Journals (Sweden)

    Lucio Roberto Lescano Duncan

    2011-12-01

    Full Text Available A big challenge in modern service organization is to focus on customers and to forge their satisfaction and loyalty. Innovation, information technology and value added are decisive factors, however the main aspect to consider is the human factor. It is necessary to focus on people in order to improve the service capability within the organization.Middle manager is the link between the strategy designed by top management and the execution to deliver services, that is realized by employees guided by leaders of middle level. Our study is focused on middle manager service orientation as the pillar to get a customer focus and to forge the service employees' performance.We consider that middle managers have to asume a service leadership in order to foster the productivity and employees' commitment. In that sense we focus especially on middle managers' main roles. Those are the key aspect to deploy a service culture, and at the same time to promote employees' satisfaction that drives their performance and development.

  7. Phylodynamics of vampire bat-transmitted rabies in Argentina.

    Science.gov (United States)

    Torres, C; Lema, C; Dohmen, F Gury; Beltran, F; Novaro, L; Russo, S; Freire, M C; Velasco-Villa, A; Mbayed, V A; Cisterna, D M

    2014-05-01

    Common vampire bat populations distributed from Mexico to Argentina are important rabies reservoir hosts in Latin America. The aim of this work was to analyse the population structure of the rabies virus (RABV) variants associated with vampire bats in the Americas and to study their phylodynamic pattern within Argentina. The phylogenetic analysis based on all available vampire bat-related N gene sequences showed both a geographical and a temporal structure. The two largest groups of RABV variants from Argentina were isolated from northwestern Argentina and from the central western zone of northeastern Argentina, corresponding to livestock areas with different climatic, topographic and biogeographical conditions, which determined their dissemination and evolutionary patterns. In addition, multiple introductions of the infection into Argentina, possibly from Brazil, were detected. The phylodynamic analysis suggests that RABV transmission dynamics is characterized by initial epizootic waves followed by local enzootic cycles with variable persistence. Anthropogenic interventions in the ecosystem should be assessed taking into account not only the environmental impact but also the potential risk of disease spreading through dissemination of current RABV lineages or the emergence of novel ones associated with vampire bats. PMID:24661865

  8. Phylodynamics of vampire bat-transmitted rabies in Argentina

    Science.gov (United States)

    DOHMEN, F. GURY; BELTRAN, F.; NOVARO, L.; RUSSO, S.; FREIRE, M. C.; VELASCO-VILLA, A.; MBAYED, V. A.; CISTERNA, D. M.

    2016-01-01

    Common vampire bat populations distributed from Mexico to Argentina are important rabies reservoir hosts in Latin America. The aim of this work was to analyse the population structure of the rabies virus (RABV) variants associated with vampire bats in the Americas and to study their phylodynamic pattern within Argentina. The phylogenetic analysis based on all available vampire bat-related N gene sequences showed both a geographical and a temporal structure. The two largest groups of RABV variants from Argentina were isolated from northwestern Argentina and from the central western zone of northeastern Argentina, corresponding to livestock areas with different climatic, topographic and biogeographical conditions, which determined their dissemination and evolutionary patterns. In addition, multiple introductions of the infection into Argentina, possibly from Brazil, were detected. The phylodynamic analysis suggests that RABV transmission dynamics is characterized by initial epizootic waves followed by local enzootic cycles with variable persistence. Anthropogenic interventions in the ecosystem should be assessed taking into account not only the environmental impact but also the potential risk of disease spreading through dissemination of current RABV lineages or the emergence of novel ones associated with vampire bats. PMID:24661865

  9. MICA: The Mirror Coronagraph for Argentina

    Science.gov (United States)

    Stenborg, G.; Schwenn, R.; Srivastava, N.; Inhester, B.; Podlipnik, B.; Rovira, M.; Francile, C.

    1999-01-01

    As part of the new German-Argentinian Solar Observatory in El Leoncito, San Juan, Argentina, a new ground-based solar telescope (MICA) began to operate in August 1997. MICA is an advanced mirror coronagraph, its design being an almost exact copy of the LASCO-C1 instrument. Since its installation, it has been imaging the inner solar corona (1.05 to 2.0 solar radii) in two spectral ranges corresponding to the emission lines of the Fe XIV and Fe X ions. The instrument can image the corona as fast as every minute. Thus, it is ideally suited to study fast processes in the inner corona. In this way, it is a good complement for the LASCO-C1 instrument. After a brief review of the instrument, we present some recent observations showing the capabilities of the instrument.

  10. Nuclear fuel supply view in Argentina

    Energy Technology Data Exchange (ETDEWEB)

    Cirimello, R.O. [Comision Nacional de Energia Atomica, Conuar SA (Argentina)

    1997-07-01

    The Argentine Atomic Energy Commission promoted and participated in a unique achievement in the R and D system in Argentina: the integration of science technology and production based on a central core of knowledge for the control and management of the nuclear fuel cycle technology. CONUAR SA, as a fuel manufacturer, FAE SA, the manufacturer of Zircaloy tubes, CNEA and now DIOXITEC SA producer of Uranium Dioxide, have been supply, in the last ten years, the amount of products required for about 1300 Tn of equivalent U content in fuels. The most promising changes for the fuel cycle economy is the Slight Enriched Uranium project which begun in Atucha I reactor. In 1997 seventy five fuel assemblies, equivalent to 900 Candu fuel bundles, will complete its irradiation. (author)

  11. movilización social en Argentina

    Directory of Open Access Journals (Sweden)

    María Inés Fernández Álvarez

    2007-01-01

    Full Text Available Este artículo analiza las acciones estatales y las practicas de movilización social en torno al problema del desempleo en la Argentina contemporánea, poniendo énfasis en las interacciones entre ambas. Desde un enfoque etnográfico, focalizamos en las organizaciones de desocupados y de empresas recuperadas, para abordar aquellas categorías que resultan más relevantes en las interacciones en el campo, entre las que se destacan las de trabajo digno y genuino. Estas categorías resultan centrales tanto en la configuración de los procesos de construcción identitaria como en la formación de demandas, mostrando la complejidad que asume el problema del desempleo.

  12. Maps, imaginary and environmental memory in Argentina

    Directory of Open Access Journals (Sweden)

    Verónica Hollman

    2014-08-01

    Full Text Available While research on social ideas of nature focused on the discursive side of environmental rhetoric during the last decade of the twentieth century, the visual turn has introduced the analysis of its visual facet: the study of the visual representation of nature in photographs, films, paintings and media among many other image-based media. However, scarce attention has received the study of what is provoked by environmental images as well as how they shape our imagination and memory of environmental issues. Based on the analysis of mental maps created by 215 subjects -all of them students of the undergraduate programs of the Faculty of Humanities at Universidad Nacional del Centro de la Provincia de Buenos Aires Province (Argentina in 2013- as the starting point to identify images that have become constitutive environmental memory, the article discusses the role of environmental images in shaping both our ways of looking to nature and our understanding of environmental issues.

  13. suprema de Justicia de la Argentina

    Directory of Open Access Journals (Sweden)

    Raúl Gustavo Ferreyra

    2006-01-01

    Full Text Available Poder de reforma es político. Reforma y control judicial de constitucionalidad son garantías constitucionales. Puede suceder que la reforma, en lugar de defender, ataque la Constitución, por infringir límites prefijados para su actuación. Se describen y clasifican sentencias de la Corte Suprema de Justicia de la Argentina sobre la cuestión. Sostengo que si se acepta el control judicial de constitucionalidad, exclusivo y pleno, sobre la reforma, se pulveriza la concepción de que la juridicidad se basa en la premisa de que la voluntad de los ciudadanos posee mayor autoridad que la de quienes actúen en su nombre y representación.

  14. Researching quality of life in Argentina

    Directory of Open Access Journals (Sweden)

    Graciela Tonón

    2015-09-01

    Full Text Available The study of quality of life considers at the same time objective and subjective circumstances of people life. In 1995 was created the International Society for Quality of Life Studies (ISQOLS whose purposes are to promote and encourage research in the field of quality-of-life studies and provide an organization through which all academic and professional researchers interested in QOL studies may coordinate their efforts to advance the field of QOL studies within various disciplines. In the case of Argentina since 2004, the Facultad de Ciencias Sociales, Universidad Nacional de Lomas de Zamora has organized the Research Program in Quality of life to develop different kind of projects about quality of life in different fields, trying to be considered by national institutions that decide public policies. 

  15. NUEVAS CITAS DE ASCLEPIADACEAE PARA ARGENTINA

    Directory of Open Access Journals (Sweden)

    Sergio A Cáceres Moral

    2010-11-01

    Full Text Available Dos especies no mencionadas anteriormente de la Argentina son tratadas e ilustradas: Oxypetalum molle Hook. et Arn. y Oxypetalum ineanum Fourn. Oxypetalum appendieulatum Mart. et Zucc., Oxypetalum confusum Malme, Oxypetalum jörgensenii Meyer, Oxypetalum microphyllum Hook. et Arn., Oxypetalum pannosum Decaisne, Oxypetalum stipatum Malme, Funastrum flavum (Decaisne Malme y Blepharodon lineare (Decaisne Decaisne se registran por primera vez para la flora de Corrientes ..

  16. Republic of Argentina: Argentina is the envy of other Latin American countries.

    Science.gov (United States)

    Spain, D

    1984-05-01

    Argentina's economic and political history may appear grim by US standards, but it is envied by many other Latin American nations, and by Latin American standards its demographic situation is enviable as well. A low population growth rate combined with abundant natural resources means that the poverty of its neighbors has not hit Argentina. Almost everyone eats well and the staple is beef -- about 240 pounds per capita per year. Final figures for the 1980 census of population and housing report a total of 27.9 million people, an increase of 17% from the 23.8 million people counted in 1970. The average annual rate of increase was 1.5% a year. With the exception of Uruguay, this is the lowest rate of increase in continental Latin America. The birthrate of 24 births/1000 population is third only to Chile and Uruguay as the lowest in continental Latin America, although the death rate is about average at 9/1000. After several decades of decline, the death rate is rising again because the population is aging. A current problem is the emigration of Argentinians to other countries, a problem that is most severe among highly trained professionals. Over 1/3 of those who leave Argentina come to the US, with Spain and Canada receiving the next highest numbers. At its current growth rate, Argentina's population will double in 46 years. It is estimated that the population was 29.1 million in 1983; it is projected to be 34.5 million by the year 2000 and 39.6 million by 2020. Over 1/3 of the population live in and around Gran Buenos Aires, the largest metropolitan area in South America and among the ten largest in the world. There is a large core of Spanish descendents still living, but some other European countries are well represented also. The 1980 census recorded 7.1 million households; the average number of persons per household was 3.9. There were 8.2 million dwellings counted in 1980, with an average of 3.3 people per dwelling. 13% of all dwellings were unoccupied at the

  17. Mirror Coronograph for Argentina (MICA). Primera Luz

    Science.gov (United States)

    Stenborg, G.; Epple, A.; Schwenn, R.; Francile, C.; Rovira, M.

    En Julio de 1997 se terminó con la primera parte de la instalación del ``Coronógrafo de Espejo para la Argentina'' en la estación de altura Carlos U. Cesco (El Leoncito), gracias al esfuerzo de la gente del Max Planck Institut für Aeronomie (Alemania), del OAFA y del IAFE. Dicho coronógrafo forma parte de un programa de ciencia bilateral entre Alemania y Argentina. El propósito del mismo, en conjunción con otros telescopios solares y terrestres, es contribuir a un mejor entendimiento de cuestiones fundamentales de la física solar. Para ello, ya está observando la corona de emisión en el verde (Fe XIV), rojo (Fe X) y Hα entre 1.05 y 2 radios solares aproximadamente. El diseño del instrumento, el cual fuera ya presentado en esta misma reunión en La Plata en 1996, es esencialmente similar al del telescopio LASCO-C1 a bordo del Solar Heliospheric Observatory (SOHO). La adquisición de datos se realiza con un CCD de 1280x1024 pixels, codificando en 12 bits, pudiendo ser el mismo operado en forma remota. En esta reunión presentaremos algunas de las observaciones realizadas durante la puesta a punto del instrumento en el período julio-setiembre de 1997. Asimismo expondremos cómo y por qué sus resultados complementarán a los de su par en el espacio.

  18. Middle slope contourite deposits and associated sedimentary facies off NE Argentina

    Science.gov (United States)

    Bozzano, Graziella; Violante, Roberto A.; Cerredo, Maria Elena

    2011-12-01

    The Argentine continental margin is characterised by a large contourite depositional system driven by southern-sourced water masses flowing at different water depths. Interest in contourite deposits is increasing in geoscience and related fields, though knowledge of the Argentine contourite system is still limited. In particular, studies based on core data providing detailed descriptions of sedimentary facies are lacking, as are investigations of principal sediment source areas and of key factors controlling sedimentary processes. This study combines visual core description and downcore grain-size analyses as well as petrographic thin-section and magnetic susceptibility analyses of 14 cores from intermediate water depths of 616-1,208 m to characterise contourite deposits on the north-eastern Argentinean slope. Gravel-rich, sandy-silty and muddy contourites as well as hemipelagic facies were identified. The deposition of these contourites was presumably controlled by sea level, the depth range of the Antarctic water mass, climate conditions and windborne terrigenous supply. It is proposed that, during glacial lowstands, muddy contourites were deposited at depths Tandilia Range is the best candidate for sediments deposited via down-slope processes.

  19. The blue land planarian Caenoplana coerulea, an invader in Argentina La planaria terrestre azul Caenoplana coerulea, un invasor en Argentina

    OpenAIRE

    Lisandro Héctor Luis-Negrete; Francisco Brusa; Leigh Winsor

    2011-01-01

    The blue land planarian Caenoplana coerulea is reported from Argentina (Buenos Aires province). We found C. coerulea in the east central region of Argentina in anthropic environments. The specimens that we found have the characteristic of the species found in others regions; that is, a bluish dorsal surface with a yellow mid-dorsal stripe and eyes forming a single row around the anterior tip, clustered laterally. This is the first record of this species from the Neotropical Region, and togeth...

  20. World review: Middle East

    International Nuclear Information System (INIS)

    The article gives information on contracts announced (and to whom) and recently completed in some parts of the Middle East in the petroleum, natural gas and petrochemicals industries. Areas specifically mentioned are Bahrain, Egypt, Iran, Libya, Oman, Qatar, Saudi Arabia, Syria and the United Arab Emirates. The prospects for the petrochemical industry in particular are good and continued growth is expected. Gas is likely to make an increasingly important contribution to the prosperity of the Middle East and is expected to carry a higher priority than expansion of crude oil production

  1. Presencia de Stegomastodon (Gomphotheriidae, Proboscidea en el Pleistoceno Superior de la zona costera de Santa Clara del Mar (Argentina

    Directory of Open Access Journals (Sweden)

    Alberdi, M. T.

    2008-12-01

    Full Text Available Gomphotheriidae fossil remains from shore level of Santa Clara del Mar (Mar del Plata, Argentina are described. The comparative morphological and multivariate analysis of the m3 with other South American gomphotheres remains, mainly from Argentina, Bolivia and Brazil, allow their identification as Stegomastodon platensis. This species seems better adapted to live on the middle latitudes and warm climatic conditions. The possible movement routes from north to the most austral zones or areas are discussed. Stegomastodon from South America is a big-size form which is present along the East route and in several shore areas of Ecuador and Peru. In the present work some palaeoecological and palaeogeographical considerations are included. From a radiometric AMS datum, the remains of Santa Clara del Mar are dated in the late Pleistocene (17,880 ± 60 AP.Se describen restos bien conservados de gonfoterios (Mammalia, Proboscidea encontrados en los niveles pleistocenos que afloran en los acantilados costeros de Santa Clara del Mar (Mar del Plata, Argentina. Se analizan algunos de sus caracteres más importantes y se compara con otros gonfoterios provenientes de distintas localidades de Argentina, Brasil y Bolivia. El estudio comparativo, mediante análisis multivariante del m3, permitió su identificación como Stegomastodon platensis. Nosotros consideramos que todos los Gomphotheriidae del territorio actual de Argentina deberían incluirse en un único género y una única especie: Stegomastodon platensis. Esta especie parece estar mejor adaptada a vivir en latitudes medias, y en condiciones climáticas templadas. Se discuten sus posibles vías de desplazamiento desde el norte hacia zonas o áreas más australes. Stegomastodon de América del Sur es una forma de gran tamaño, que se encuentra a lo largo de la ruta del este y en algunas áreas costeras de Ecuador y Perú. En el presente artículo se incluyen algunas consideraciones paleoecológicas y

  2. Middle East Reform Halts

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    The chaos in Iraq poses a great threat to the U.S. plan in the Middle East While the fighting between Israel and Lebanon-based Hezbollah becomes fiercer, security in Iraq also keeps deteriorating, making the region a petrol can that may blow up anytime.

  3. Fostering a Middle Class

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    Though there is no official definition of "middle class" in China, the tag has become one few Chinese people believe they deserve anyway.In early August, the Chinese Academy of Social Sciences released a report on China’s urban development,

  4. Utopia Middle School

    Science.gov (United States)

    Cloud, Michelle

    2006-01-01

    The following excerpt allows the reader to briefly peer into an ideal school setting: For the purposes of this paper, the fictitious school will be named Utopia Middle School or U.M.S. U.M.S embodies and exemplifies the perfect school. At U.M.S., the campus administrators perform at a level of excellence that motivates, empowers and supports all…

  5. Model Middle Schools

    Science.gov (United States)

    Shapiro, Arthur; And Others

    1973-01-01

    Provides three models as approaches to organizing the middle school in a variety of exciting ways: (1) an oscillating system, where students in communities move between basic studies and related arts and physical education, (2) an immersion system, where students in communities spend full time moving between interdisciplinary areas, and (3) a…

  6. The origin of groundwater composition in the Pampeano Aquifer underlying the Del Azul Creek basin, Argentina

    International Nuclear Information System (INIS)

    The Pampean plain is the most productive region in Argentina. The Pampeano Aquifer beneath the Pampean plain is used mostly for drinking water. The study area is the sector of the Pampeano Aquifer underlying the Del Azul Creek basin, in Buenos Aires province. The main objective is to characterize the chemical and isotopic compositions of groundwater and their origin on a regional scale. The methodology used involved the identification and characterization of potential sources of solutes, the study of rain water and groundwater chemical and isotopic characteristics to deduce processes, the development of a hydrogeochemical conceptual model, and its validation by hydrogeochemical modelling with PHREEQC. Groundwater samples come mostly from a two-depth monitoring network of the “Dr. Eduardo J. Usunoff” Large Plains Hydrology Institute (IHLLA). Groundwater salinity increases from SW to NE, where groundwater is saline. In the upper basin groundwater is of the HCO3-Ca type, in the middle basin it is HCO3-Na, and in the lower basin it is ClSO4–NaCa and Cl–Na. The main processes incorporating solutes to groundwater during recharge in the upper basin are rain water evaporation, dissolution of CO2, calcite, dolomite, silica, and anorthite; cationic exchange with Na release and Ca and Mg uptake, and clay precipitation. The main processes modifying groundwater chemistry along horizontal flow at 30 m depth from the upper to the lower basin are cationic exchange, dissolution of silica and anorthite, and clay precipitation. The origin of salinity in the middle and lower basin is secular evaporation in a naturally endorheic area. In the upper and middle basins there is agricultural pollution. In the lower basin the main pollution source is human liquid and solid wastes. Vertical infiltration through the boreholes annular space during the yearly flooding stages is probably the pollution mechanism of the samples at 30 m depth. - Highlights: • The work studies the origin of

  7. The origin of groundwater composition in the Pampeano Aquifer underlying the Del Azul Creek basin, Argentina

    Energy Technology Data Exchange (ETDEWEB)

    Zabala, M.E., E-mail: mzabala@faa.unicen.edu.ar [Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Av. Rivadavia 1917, C1033AAJ Ciudad Autónoma de Buenos Aires (Argentina); Instituto de Hidrología de Llanuras “Dr. Eduardo J. Usunoff”, Av. República Italia 780, 7300 Azul, Provincia Buenos Aires (Argentina); Manzano, M., E-mail: marisol.manzano@upct.es [Escuela de Ingeniería de Caminos, Canales y Puertos y de Ingeniería de Minas, Universidad Politécnica de Cartagena, P° de Alfonso XIII 52, E-30203 Cartagena (Spain); Vives, L., E-mail: lvives@faa.unicen.edu.ar [Instituto de Hidrología de Llanuras “Dr. Eduardo J. Usunoff”, Av. República Italia 780, 7300 Azul, Provincia Buenos Aires (Argentina)

    2015-06-15

    The Pampean plain is the most productive region in Argentina. The Pampeano Aquifer beneath the Pampean plain is used mostly for drinking water. The study area is the sector of the Pampeano Aquifer underlying the Del Azul Creek basin, in Buenos Aires province. The main objective is to characterize the chemical and isotopic compositions of groundwater and their origin on a regional scale. The methodology used involved the identification and characterization of potential sources of solutes, the study of rain water and groundwater chemical and isotopic characteristics to deduce processes, the development of a hydrogeochemical conceptual model, and its validation by hydrogeochemical modelling with PHREEQC. Groundwater samples come mostly from a two-depth monitoring network of the “Dr. Eduardo J. Usunoff” Large Plains Hydrology Institute (IHLLA). Groundwater salinity increases from SW to NE, where groundwater is saline. In the upper basin groundwater is of the HCO{sub 3}-Ca type, in the middle basin it is HCO{sub 3}-Na, and in the lower basin it is ClSO{sub 4}–NaCa and Cl–Na. The main processes incorporating solutes to groundwater during recharge in the upper basin are rain water evaporation, dissolution of CO{sub 2}, calcite, dolomite, silica, and anorthite; cationic exchange with Na release and Ca and Mg uptake, and clay precipitation. The main processes modifying groundwater chemistry along horizontal flow at 30 m depth from the upper to the lower basin are cationic exchange, dissolution of silica and anorthite, and clay precipitation. The origin of salinity in the middle and lower basin is secular evaporation in a naturally endorheic area. In the upper and middle basins there is agricultural pollution. In the lower basin the main pollution source is human liquid and solid wastes. Vertical infiltration through the boreholes annular space during the yearly flooding stages is probably the pollution mechanism of the samples at 30 m depth. - Highlights: • The

  8. Interannual variability of temperature spells over Argentina

    Energy Technology Data Exchange (ETDEWEB)

    Rusticucci, M. M; Vargas, W. M [Departamento de Ciencias de la Atmosfera y los Oceanos, Buenos Aires (Argentina)

    2001-04-01

    This work is aimed at studying the interannual variability of surface temperature cold spells and warm spells due to cold-and warm-air incursions. The effect of the ENSO event on the occurrence of extreme spells having three different indices was studied. In order to track changes during the 1959/96 period, spell parameters, persistence and intensity, have been studied from daily temperatures. The number of extreme spells per year show low frequency variability plus a biennial variability, which is more important in its intensity than in its persistence, and in summer rather than in winter. The number of extreme warm spell increase until the end of the sisties and seventies, reflecting and increase of northeasterly flow. From then onwards, the trend starts to decline significantly over northern Argentina. The interannual variability of extreme winter cold spells increases from the 80's onwards, indicating the variations of anticyclone permanence over the country. Cases are more numerous in the latest years. Extreme spell occurrence in northern Argentina is closely linked to the El nino phenomenon. Winter warm spells are more persistent in an El Nino (0) year and more intense and persistent in the year following El Nino. In summer, however, there is either no difference, or the relationship is reversed, resulting in more intense situations in November and December in the case of La Nina. Cold spells reaching the Northeastern most part of the country are more persistent when La Nina occurs, the conclusions being that the region would be affected by extreme cold spells when La Nina is active. [Spanish] En este trabajo se estudia la variabilidad interanual de las olas de calor y frio extremas sobre la Argentina, como la manifestacion de irrupciones extremas de aire tropical y polar. Se consideran las temperaturas de superficie diarias en el periodo de 1959/96, a partir de las cuales se calculan dos parametros para definir las olas: persistencia e intensidad. La

  9. Middle East Respiratory Syndrome (MERS)

    Science.gov (United States)

    Middle East Respiratory Syndrome Coronavirus; MERS-CoV; Novel coronavirus; nCoV ... Centers for Disease Control and Prevention. Middle East ... 2, 2015. www.cdc.gov/coronavirus/mers/faq.html . Accessed April ...

  10. 76 FR 2655 - Honey From Argentina: Preliminary Results of Antidumping Duty Administrative Review

    Science.gov (United States)

    2011-01-14

    ...: Honey From Argentina, 66 FR 63672 (December 10, 2001). On December 1, 2009, the Department published in... Memorandum; see e.g., Honey from Argentina: Final Results of Antidumping Duty Administrative Review, 70 FR... to Patagonik. See, e.g., Honey From Argentina: Preliminary Results of New Shipper Review, 71 FR...

  11. 77 FR 45334 - Honey From Argentina: Preliminary Rescission of Antidumping Duty New Shipper Review

    Science.gov (United States)

    2012-07-31

    ... initiated this NSR. See Honey from Argentina: Notice of Initiation of Antidumping New Shipper Review, 77 FR... of Antidumping Duty Order: Honey From Argentina, 66 FR 63672 (December 10, 2001). \\2\\ We note that... International Trade Administration Honey From Argentina: Preliminary Rescission of Antidumping Duty New...

  12. 76 FR 54202 - Honey From Argentina: Preliminary Results of Antidumping Duty New Shipper Review

    Science.gov (United States)

    2011-08-31

    ... Antidumping Duty Order: Honey from Argentina, 66 FR 63672 (December 10, 2001). On January 3, 2011, the..., 2011. See Honey from Argentina: Notice of Initiation of Antidumping Duty New Shipper Review, 76 FR 5332... LTFV investigation. See Notice of Antidumping Duty Order; Honey From Argentina, 66 FR 63672...

  13. 77 FR 1458 - Honey From Argentina: Preliminary Results of Antidumping Duty Administrative Review and Partial...

    Science.gov (United States)

    2012-01-10

    .... See Honey From Argentina: Final Results of Antidumping Duty New Shipper Review, 76 FR 74044 (November..., e.g., Honey from Argentina: Final Results of Antidumping Duty Administrative ] Review, 70 FR 19926...; Honey From Argentina, 66 FR at 63673. These cash deposit requirements, when imposed, shall remain...

  14. [Nutritional graph for Argentina's bariatric population].

    Science.gov (United States)

    Fantelli Pateiro, Laura; Pampillón, N; Coqueugniot, M; De Rosa, P; Pagano, C; Reynoso, C; De Pizzol, C; Iturralde, C; Podestá, S; Penutto, C

    2014-06-01

    Introducción: Una gráfica alimentaria es una guía que ayuda a los individuos a controlar y a mejorar la calidad de su alimentación; ofrece pautas sobre lo que debe comer una determinada población en términos de alimentos dando un marco para la correcta selección de los nutrientes a consumir. Objetivo: El objetivo de la presente publicación fue crear una herramienta de educación alimentaria destinada a pacientes de cirugía bariátrica para el postoperatorio en el largo plazo. Métodos: Se convocó a participar en mesas de trabajo a licenciados en nutrición y médicos especialistas en nutrición en un congreso realizado en el 2011. Se tomó como base científica el Primer Consenso Argentino de Nutrición en Cirugía Bariátrica y las “Guías alimentarias para la Población Argentina normal”. De esta forma se adapta la misma a la población argentina con cirugía bariátrica sumada a la experiencia de los profesionales. Resultado: Como resultado se obtuvo un gráfica alimentaria en forma de óvalo, adaptación de la gráfica de las “Guías alimentarias para la población argentina”, 12 mensajes o recomendaciones dirigidas a individuos con CB, una sugerencia de menú que responde a un valor calórico promedio de 1.273 calorías diarias, 145 g de carbohidratos, 76 g de proteínas y 43,2 g de grasas; 45,5% de calorías proveniente de los carbohidratos, 24% de calorías proveniente de las proteínas y 30,5 % de calorías proveniente de las grasas, 1.160 mg de calcio.

  15. The culture of milk in Argentina

    Directory of Open Access Journals (Sweden)

    Patricia Aguirre

    2003-09-01

    Full Text Available This paper analyses the culture of milk and it includes both the micro social aspects of household consumption and the economic macro aspects related to milk production and their market and the welfare distribution in public policies against poverty. The hypothesis is that in Argentina there is a real culture of milk, which gives meaning to consumption, and marks the different income groups within society, as well as their gender and age. But since approximately 20 years ago, in accordance with the restructuring of the dairy industrial complex, that culture of milk has been changing, and its most outstanding features are the following: abandonment of milk as the emblematic food for children and its extension to the adult “formal” consumption; milk is no longer the knowledge of women and becomes the knowledge of experts; increase in milk consumption (dairy products in general as food gets feminine, infantile, medicated, globalised and segmented.Este artículo sobre la cultura de la leche analiza los aspectos microsociales del consumo en el hogar y los aspectos macro de la economía que hacen a la industria lactea y al mercado junto a la distribución asistencial del estado en los programas contra la pobreza. La hipótesis es que en Argentina existe una verdadera cultura de la leche, que da sentido al consumo, marcando con el alimento los diferentes sectores de ingreso de la sociedad, los géneros y las edades. Pero desde hace aproximadamente 20 años, en consonancia con la reconversión del complejo industrial lácteo, esta cultura de la leche esta cambiando, se describen sus aspectos mas salientes tales como : el abandono de la leche como alimento emblemático de los niños y su extensión al consumo “formal” adulto ; deja de ser un alimento rutinario cuyo saber usar residía en las mujeres y su uso pase a ser cosa de especialistas ; a medida se feminiza, infantiliza, medicaliza, globaliza y segmenta la alimentación en general

  16. [Latin American malacology. Freshwater mollusks from Argentina].

    Science.gov (United States)

    Rumi, Alejandra; Gregoric, Diego E Gutiérrez; Núñez, Verónica; Darrigran, Gustavo A

    2008-03-01

    A report and an updated list with comments on the species of freshwater molluscs of Argentina which covers an area of 2 777 815 km2 is presented. Distributions of Gastropoda and Bivalvia families, endemic, exotic, invasive as well as entities of sanitary importance are also studied and recommendations on their conservation are provided. Molluscs related to the Del Plata Basin have been thoroughly studied in comparison to others areas of the country. This fauna exhibits relatively the biggest specific richness and keeps its affinity with the fauna of other regions of the basin in areas of Paraguay and Brasil. The 4 500 records of molluscs considered in this paper arise from the study of the collections of Museo Argentino de Ciencias Naturales "Bernardino Rivadavia", Buenos Aires; Museo de La Plata, La Plata and Fundación "Miguel Lillo", Tucumán. These institutions keep very important collections of molluscs in southern South America. Field information has recently been obtained and localities cited by other authors are also included in the data base. Until today, 166 species have been described, 101 belonging to 10 families of Gastropoda and 65 to 7 of Bivalvia. Families with highest specific richness are Lithoglyphidae (22) and Sphaeriidae (25), respectively. The number of endemic species (those present only in Argentina) by family is: Gastropoda: Ampullariidae (1), Cochliopidae (10), Lithoglyphidae (11), Thiariidae (3), Chilinidae (11), Lymnaeidae (2) and Physidae (2?); Bivalvia: Hyriidae (1?); Etheriidae (1?) and Sphaeriidae (10). Families with a distribution that comprise almost the whole country are: the Sphaeriidae and the gastropods Cochliopidae, Chilinidae and Lymnaeidae. Families Erodonidae and Solecurtidae (Bivalvia) were registered in mixohaline environments from Buenos Aires province. Gastropod families Thiaridae and Glacidorbiidae show a very restricted distribution. The rest of the families are present mainly in the center and north of the country

  17. Asociación de sida y leishmaniosis tegumentaria americana en Argentina American tegumentary leishmaniasis associated with AIDS in Argentina

    Directory of Open Access Journals (Sweden)

    Héctor D. Romero

    2004-02-01

    Full Text Available Las migraciones a pequeños municipios y áreas rurales de personas infectadas con HIV contribuye a la diseminación progresiva del sida y a la asociación con otras infecciones prevalentes en áreas endémicas, como las parasitosis. Esta asociación significa un importante desafío para la salud pública, ya que frecuentemente ambas infecciones se potencian. En este trabajo presentamos el primer paciente autóctono con sida asociado a leishmaniosis mucocutánea procedente de la zona de Orán, donde a mediados de los 80 se desarrolló un brote epidémico de leishmaniosis que a la fecha supera más de 2000 casos confirmados parasitológicamente en nuestro Instituto. Recientemente informamos la existencia de 2 especies (Leishmania (V. braziliensis y L. (L. amasonensis como las causantes de leishmaniosis tegumentaria americana en la zona. Queremos llamar la atención de los profesionales de la salud sobre la posibilidad de coinfección HIV-Leishmania, recomendando que en pacientes de áreas endémicas con antecedentes de úlceras cutáneas indoloras o incluso cicatrizales, se investigue, entre otras enfermedades, la leishmaniosis.Migration of HIV infected individuals from cities to small towns and rural areas spreads AIDS among non urban population, superimposing HIV with other endemic or epidemic infections as parasitoses. This situation is a big challenge to public health because in most cases the association between these infections worsens both prognoses. We present here the first case in Argentina of AIDS associated to a mucocutaneous form of American tegumentary leishmaniasis. The patient was from Orán, an area where in the middle eighties, an epidemic outbreak took place. By now more than 2000 cases have been parasitologically confirmed in our Institute and the causing species were identified as Leishmania (V. braziliensis and L. (L. amasonensis. Considering the existence of co-infection of HIV and Leishmania, it is recommended that in

  18. Economy-wide impacts of biofuels in Argentina

    International Nuclear Information System (INIS)

    Argentina is one of the world's largest biodiesel producers and the largest exporter, using soybeans as feedstock. Using a computable general equilibrium model that explicitly represents the biofuel industry, this study carries out several simulations on two sets of issues: (i) international markets for biofuel and feedstock, such as an increase in prices of soybean, soybean oil, and biodiesel, and (ii) domestic policies related to biofuels, such as an introduction of biofuel mandates. Both sets of issues can have important consequences to the Argentinean economy. The simulations indicate that increases in international prices of biofuels and feedstocks would increase Argentina's gross domestic product and social welfare. Increases in international prices of ethanol and corn also can benefit Argentina, but to a lesser extent. The domestic mandates for biofuels, however, would cause small losses in economic output and social welfare because they divert part of biodiesel and feedstock from exports to lower-return domestic consumption. An increase in the export tax on either feedstock or biodiesel also would lead to a reduction in gross domestic product and social welfare, although government revenue would rise. - Highlights: ► Argentina is one of the largest biodiesel producer and exporter using soybeans. ► Economy-wide impacts are assessed using a CGE model for Argentina. ► Policies simulated are feedstock and biodiesel price change, and domestic mandates. ► Increases in international prices of biofuels and feedstock benefit the country. ► Domestic mandates for biofuels cause small losses in economic output

  19. Cooperation on Water management issues, Argentina : Project in the framework of Bilateral Cooperation between Argentina and the Netherlands : Case studies on water management issues in Argentina

    NARCIS (Netherlands)

    Querner, E.P.; Morabito, J.A.; Rebori, G.

    2007-01-01

    In Argentina parts of the country have problems encountered from too much water or suffer serious water shortages. The Humid Pampas encounter an increased rainfall since the 1970’s. In Mendoza Province water resources are limited and all the water from the rivers is used for agriculture, drinking wa

  20. Exploring health researchers’ perceptions of policymaking in Argentina: a qualitative study

    Science.gov (United States)

    Corluka, Adrijana; Hyder, Adnan A; Winch, Peter J; Segura, Elsa

    2014-01-01

    Much of the published research on evidence-informed health policymaking in low- and middle-income countries has focused on policymakers, overlooking the role of health researchers in the research-to-policy process. Through 20 semi-structured, in-depth qualitative interviews conducted with researchers in Argentina’s rural northwest and the capital of Buenos Aires, we explore the perspectives, experiences and attitudes of Argentine health researchers regarding the use and impact of health research in policymaking in Argentina. We find that the researcher, and the researcher’s function of generating evidence, is nested within a broader complex system that influences the researcher’s interaction with policymaking. This system comprises communities of practice, government departments/civil society organizations, bureaucratic processes and political governance and executive leadership. At the individual level, researcher capacity and determinants of research availability also play a role in contributing to evidence-informed policymaking. In addition, we find a recurrent theme around ‘lack of trust’ and explore the role of trust within a research system, finding that researchers’ distrust towards policymakers and even other researchers are linked inextricably to the sociopolitical history of Argentina, which contributes to shaping researchers’ identities in opposition to policymakers. For policymakers, national research councils and funders of national health research systems, this article provides a deeper understanding of researchers’ perceptions which can help inform and improve programme design when developing interventions to enhance research utilization and develop equitable and rational health policies. For donors and development agencies interested in health research capacity building and achieving development goals, this research demonstrates a need for investment in building research capacity and training health researchers to interact with the

  1. Pre-Andean Rotations in NW Argentina: a Clue to a Possible Tectonic Model?

    Science.gov (United States)

    Spagnuolo, C. M.; Rapalini, A. E.; Astini, R. A.

    2008-05-01

    In the early Paleozoic western South America underwent a complex tectonic history that includes a more or less continuous active margin that witnessed the accretion and displacement of several terranes. In particular, many models have been proposed to account for the geologic evolution of the northwestern region of Argentina in the Lower Paleozoic, which range from a wholly ensialic evolution to the accretion of exotic and/or para- autochthonous terranes. During the last three years a systematic paleomagnetic study on Lower Paleozoic sedimentary and volcanic rocks from NW Argentina have yielded a Late Cambrian paleomagnetic pole for the Eastern Cordillera (23° S 65° W, Campanario Fm.), an Early to Middle Ordovician pole for the Famatina volcanic arc (28° S 68° W, Cerro Morado and Los Molles Fms.) and a Permian one in the same locality. A clockwise rotation around 35° is found for both Lower Paleozoic units, while the Permian one is coincident with the apparent polar wander path of Gondwana. The Early Paleozoic results are virtually identical to others found several years ago in the Eastern Puna magmatic belt and in the same Famatina System. On the other hand, a counter-clockwise rotation has been reported for Early Paleozoic rocks exposed at different localities of the Antofalla block. Those results are reviewed together with the structural and geological information of the region in order to evaluate the feasibility of different tectonic models such as i) the opening and closure of a back-arc basin, ii) the collision or displacement of a para-autochthonous terrane, or iii) the development of systematic block rotations associated to oblique subduction or scape tectonics.

  2. Middle Eastern solutions

    International Nuclear Information System (INIS)

    The need to consider the Middle East as a group of distinct countries and not as one single market and to tailor the services offered by companies is stressed. The cultures, political and social conditions, forms of the oil and gas industry in the countries making up the Middle East and their technology requirements are different and vary widely. The approach taken by Shell Global Solutions to these differences is described and illustrated with Shell's experiences in Oman and Saudi Arabia. Shell has found that Omanis are keen to work in their oil and gas industry, and to protect their country's natural environment. Saudi also have intense pride in their oil industry and here Shell supports refinery operators reduce costs while maintaining strict quality control. Shell has been selected to help Saudi Arabia develop its natural gas reserves; as part of the Core Venture 3 project, Shell will build a power desalination plant

  3. My Middle School Life

    Institute of Scientific and Technical Information of China (English)

    高懿; 吕静

    2004-01-01

    It is generally believed that the best time of one's hfe is their youth, and we spend most of it in our schools. So school is like a cradle which supports us from our childhood through adulthood. It also serves as a bridge between family and society. As a teenager, I have already studied more than 6 years in middle school, during which period I have gained notonly a great deal of knowledge but some valuable experience as well. The most important of all are the many unforgettable activities of school, which make my hfe more colorful.Looking back on my nearly 7 years' middle school hfe, I'd hke to divide it into two parts,that is, help and enjoyment.

  4. Stuck in the Middle

    Institute of Scientific and Technical Information of China (English)

    YIN PUMIN

    2011-01-01

    Sun Lijun works as a software engineer at a Beijing-based IT company and earns around 8,000 yuan ($1254)a month.His relative y high income means his friends and colleagues,as well as China's statistical agencies,regard him as middle class.Sun,however,does not think he is worthy of being included in a category that is traditionally associated with security and comfort.

  5. 77 FR 58524 - Honey From Argentina; Final Results of Sunset Reviews and Revocation of Antidumping Duty and...

    Science.gov (United States)

    2012-09-21

    ... Argentina, 66 FR 63672 (December 10, 2001) and Notice of Countervailing Duty Order: Honey From Argentina, 66 FR 63673 (December 10, 2001). \\3\\ See Continuation of Antidumping Duty Orders on Honey from Argentina... Argentina. \\1\\ See Initiation of Five-Year (``Sunset'') Review, 77 FR 39217 (July 2, 2012)...

  6. el sistema de salud en Argentina

    Directory of Open Access Journals (Sweden)

    Víctor Abramovich

    2008-01-01

    Full Text Available As an answer to the new disparities and inequities which emerged from the health reforms in Argentina form the 1990´s, it appears the need to guarantee the health as a right. As a consequence, an important judicial activism begins to unfold in order to achieve greater guarantees in matters of health. Here, judicial activism refers to the strategic use of the law courts by organizations dedicated to the struggle of public interest and to the use of the law courts by private individuals to channel the complaints against the State or against health service providing companies. At present, both the Supreme National Court of Justice and the lower courts have dealt with an important number of cases related to the right to health. In the cases selected in this article, we analyze the type of conflict and the judicial answer, together with the possible effects of certain court decisions about the rules that govern the health system as finally conformed

  7. Payenia volcanic province, southern Mendoza, Argentina

    DEFF Research Database (Denmark)

    Søager, Nina; Holm, Paul Martin; Llambias, Eduardo Jorge

    2013-01-01

    to the low thickness of the lithospheric mantle and preheating of the lower crust by earlier Mio-Pliocene volcanism. Rare earth element modelling of mantle melting calls for enriched source compositions and a beginning of melting within the garnet stability field for all Payenia basalts. The Río Colorado......The Pleistocene to Holocene Payenia volcanic province is a backarc region of 60,000 km2 in Mendoza, Argentina, which is dominated by transitional to alkaline basalts and trachybasalts. We present major and trace element compositions of 139 rocks from this area of which the majority are basaltic...... rocks with 4 to 12 wt.% MgO and 44 to 50 wt.% SiO2. The southern Payenia province is dominated by intraplate basalts and the trace element patterns of the Río Colorado and Payún Matrú lavas suggest little or no influence from subducted slab components. The mantle source of these rocks is similar to some...

  8. Argentina. A country of contrast and paradox.

    Science.gov (United States)

    Miguel, Oscar A; Tonelli, Enrique; Cimino, Enrique

    2015-01-01

    In Argentina, health is not considered a state policy, and it does not benefit from effective action in all areas of government. The budget is essentially used up by structural costs, and despite having made progress in some areas such as vaccinations, there is little impact on the community as a whole from the promotion of health and the prevention of prevalent chronic illnesses linked to metabolism and lifestyle. The biggest health expenditure is private, including so-called "out-of-pocked spending," which leads to inequality, with over 40% of the population without explicit health coverage. In the national systems, coverage is linked to formal employment and Obras Sociales and is essentially managed by trade unions. Social determinants therefore continue leading to illness, which the health system then attempts to cure at enormous human and financial cost. Recommendations of international bodies (PAHO, WHO, FLH, IHF) stress the importance of organizing state and private RISS, but very little has been done in this regard. Right to healthcare is already required, but it's a long way form being sufficient. The whole population needs to be provided explicit and effective universal health coverage, in order to ensure healthcare and equality, and organize healthcare networks which make awareness, promotion, prevention, and rehabilitation more effective for all, using existing, high-level structural and human resources. PMID:26521379

  9. National uranium development programme in Argentina

    International Nuclear Information System (INIS)

    The initial survey of Argentine uranium resources was completed in 1959. This survey, conducted over a 12-year period, covered approximately 1,000,000 square kilometres. The exploration programme used a combination of airborne, carborne, and hand-held radiometric surveys, together with supporting geochemical and emanometric evaluations. Nearly 1000 anomalies were found, and of these 500 were selected for further study. This work included detailed geological, radiometric and emanometric surveys, as well as 230,000 metres of drilling and 35,000 metres of trenching and tunnelling. As a result 200 of the anomalies were reclassified as deposits of four different size categories. Eighty of the deposits were estimated to contain 10 tonnes U3O8, 15 were placed in the 100 tonnes U3O8 category, 7 were designated as 1000 tonnes deposits, and one was estimated to contain approximately 16,000 tonnes of U3O8. The uranium resources of Argentina are presently estimated to be 31,000 tonnes U3O8, based on a cost of up to US $80 per kilogram U3O8. An additional 12,000 tonnes U3O8 are available if a US $80-130 per kilogram U3O8 cost category is used. The overall uraniferous geological potential based on favourability criteria is estimated to be around 400,000 tonnes U3O8. (author)

  10. Minilivestock in Argentina. Integration with Agricultural Production

    Directory of Open Access Journals (Sweden)

    Biasatti, NR.

    1999-01-01

    Full Text Available The development of alternative agricultural production can take different forms. In Argentina there is an important diversity of species available to be incorporated into production systems, giving support for the use of natural resources based on taking advantage of the regional fauna. Moreover the use of different animal species can be incorporated under the concept of the optimization of flows of energy and materials, tending to minimize the environmental impact of livestock production, and also to make more efficient use of the ingredients required for developing the activity. The integration of non-traditional species (minilivestock within the context of sustainable agricultural development was the motivation for the present study A module for raising Myocastor coypus (coypu or false nutha was developed, to which was linked a module for raising Eisenia foetida (the socalled red worm, in both cases with a dual purpose. Preliminary estimates were made of the productive aspects of both species, as well as an analysis of their integration, to understand the extent to which diversification linked with complementation tends to optimize the system.

  11. Genetic Influences on Preterm Birth in Argentina

    Science.gov (United States)

    Mann, Paul C.; Cooper, Margaret E.; Ryckman, Kelli K.; Comas, Belén; Gili, Juan; Crumley, Suzanne; Bream, Elise N.A.; Byers, Heather M.; Piester, Travis; Schaefer, Amanda; Christine, Paul J.; Lawrence, Amy; Schaa, Kendra L.; Kelsey, Keegan J.P.; Berends, Susan K.; Gadow, Enrique; Cosentino, Viviana; Castilla, Eduardo E.; Camelo, Jorge López; Saleme, Cesar; Day, Lori J.; England, Sarah K.; Marazita, Mary L.; Dagle, John M.; Murray, Jeffrey C.

    2013-01-01

    Objective To investigate genetic etiologies of preterm birth (PTB) in Argentina through evaluation of single-nucleotide polymorphisms (SNP) in candidate genes and population genetic admixture. Study Design Genotyping was performed in 389 families. Maternal, paternal, and fetal effects were studied separately. Mitochondrial DNA (mtDNA) was sequenced in 50 males and 50 females. Y-chromosome anthropological markers were evaluated in 50 males. Results Fetal association with PTB was found in the progesterone receptor (PGR, rs1942836; p= 0.004). Maternal association with PTB was found in small conductance calcium activated potassium channel isoform 3 (KCNN3, rs883319; p= 0.01). Gestational age associated with PTB in PGR rs1942836 at 32 –36 weeks (p= 0.0004). MtDNA sequencing determined 88 individuals had Amerindian consistent haplogroups. Two individuals had Amerindian Y-chromosome consistent haplotypes. Conclusions This study replicates single locus fetal associations with PTB in PGR, maternal association in KCNN3, and demonstrates possible effects for divergent racial admixture on PTB. PMID:23018797

  12. Triatoma infestans in Greater Buenos Aires, Argentina

    Directory of Open Access Journals (Sweden)

    Gajate P

    2001-01-01

    Full Text Available The Health Administration Agencies of many municipalities in Greater Buenos Aires (GBA receive frequent reports on triatomines in houses. The aim of this work was to identify and describe the dispersal foci of Triatoma infestans in an urban neighborhood of GBA, and contribute to the knowledge of the epidemiological situation in the region. In June 1998, potentially infested places were entomologically evaluated. T. infestans was only detected in a hen building for egg production, which housed approximately 6,000 birds. A total of 2,930 insects were collected. Density was about 9 triatomines/m². The proportions of fifth instar nymphs and adults were significantly higher than those of the other stages (p<0.001. The number of triatomines collected largely exceeded the highest domestic infestation found in one house from rural endemic areas of Argentina. Though triatomines were negative for Trypanosoma cruzi, they could acquire the parasite by coming in contact with infected people living in GBA. Besides, the numerous and widely distributed places housing hens and chickens, would favor the settlement of the vector. Together, both facts may constitute a risk of parasitic vectorial transmission. It is recommended to intensify systematic activities of vector search and case detection in GBA.

  13. Miguel Sánchez Peña (1925-2009) organizer of the space activities in Argentina

    Science.gov (United States)

    de León, Pablo; Sánchez Peña, Miguel Alejandro

    2011-11-01

    One of the most important and active pioneers of the space activities in Argentina was Miguel Sánchez Peña, an aeronautical engineer and an officer of the Argentine Air Force. Sánchez Peña was the organizer of Argentina's governmental space program in the 1970s and part of the 80s, and contributed immeasurably to the Nation's sounding rocket program. Born in Mendoza, Argentina in 1925, Sánchez Peña attended the Military Aviation School (Escuela de Aviación Militar) in Córdoba, and later the Air Force Engineering School. Graduated as an engineer in 1959 he was sent to the University of Michigan in the United States to complete his graduate studies earning a Masters of Science degree in Aerospace Engineering. There he had the opportunity to study with several future NASA astronauts such as Theodore Freeman, Edward White and James McDivitt. After his return to Argentina in 1961 he was put in charge of the Space Development Group (Grupo de Desarrollos Espaciales) of the Air Force in Córdoba. While with the Air Force he managed the development of a family of various sounding rockets for high altitude research. Sánchez Peña was also in charge of the first Argentine rockets launched from Antarctica in 1965, as well as the first tests on an Argentine-fabricated rocket (Orión) from Wallops Island in the United States, in 1966. The Orion was the first operational sounding rocket constructed in South America. In the middle of the 1970s Miguel Sánchez Peña was named president of the CNIE (National Space Research Commission). Starting with just a modest one-desk office at the Argentine Air Force headquarters, in only a few years he turned CNIE into a multi-center organization with several hundred employees, three operational launch centers across the country and a family of research rockets open to the international scientific community. He was also actively representing Argentina in many IAF congresses, and was a member of the International Academy of

  14. First Late Triassic Record of a Paleoentomofauna from South America(Malargüe Basin,Mendoza Province,Argentina)

    Institute of Scientific and Technical Information of China (English)

    Carsten BRAUCKMANN; Oscar F.GALLEGO; Norbert HAUSCHKE; Rafael G.MARTINS-NETO; Elke GROENING; Jan-M.ILGER; María B.LARA

    2010-01-01

    Late Middle Triassic to early Late Triassic insects from Argentina have been previously described from the Bermejo and Cuyana Basins where they have been recovered from the Ischichuca-Los Rastros and Potrerillos-Cacheuta Formations,respectively.The insect fauna discussed herein was collected during field studies in 1986/1987 from the Llantenes section(Norian to Rhaetian? Late Triassic),which is situated in the Malargtie Basin in southern Mendoza province.The insect remains were found in the upper part of the Llantenes section(Llantenes Formation),which is built up of two coarsening-upwards cycles reflecting a deltaic progradation of a fluvial into a lacustrine environment(lower part),succeeded by repeated progradations into a floodplaindominated environment(upper part; with finds of insects,conchostracans,fish remains,plant fragments,and drifted logs).The new finds represent the youngest Triassic insect records described from Argentina and even from South America in its entirety.There is only one contemporaneous fossil assemblage in Gondwana:in the Clarence/Moreton Basin(Aberdare Conglomerate; Late Norian)in Australia.The new Triassic insects include an impression of an isolated Mecopterida-like wing(Mendozachorista volkheimeri gen.et sp.nov.;Mendozachoristidae fam.nov.),coleopteran elytra of the Permosynidae(Ademosyne rosenfeldi sp.nov.and Ademosyne llantenesensis sp.nov.)and other isolated body fragments.This new Late Triassic entomofauna from Argentina is of considerable importance in the reconstruction of the biotic recovery of continental environments in Gondwana after the catastrophic mass extinction at the P/T boundary.

  15. The blue land planarian Caenoplana coerulea, an invader in Argentina La planaria terrestre azul Caenoplana coerulea, un invasor en Argentina

    Directory of Open Access Journals (Sweden)

    Lisandro Héctor Luis-Negrete

    2011-03-01

    Full Text Available The blue land planarian Caenoplana coerulea is reported from Argentina (Buenos Aires province. We found C. coerulea in the east central region of Argentina in anthropic environments. The specimens that we found have the characteristic of the species found in others regions; that is, a bluish dorsal surface with a yellow mid-dorsal stripe and eyes forming a single row around the anterior tip, clustered laterally. This is the first record of this species from the Neotropical Region, and together with Bipalium kewense are the only 2 species of exotic terrestrial planarians so far recorded in Argentina.La planaria terrestre azul Caenoplana coerulea se registra para el centro este de Argentina (provincia de Buenos Aires, en ambientes antropizados. Los ejemplares encontrados presentan las características de la especie registrada en otras regiones, con una superficie dorsal azulada y una hilera medio dorsal amarilla, y ojos formando una hilera alrededor del extremo anterior, agrupados lateralmente. Es la primera vez que se cita dicha especie en la Región Neotropical, y junto a Bipalium kewense son las únicas planarias terrestres exóticas registradas en Argentina.

  16. Biotechnology in Argentina: New products, new multilateral challenges

    Directory of Open Access Journals (Sweden)

    Luciano M. Donadio Linares

    2016-06-01

    Full Text Available Since 20 years ago, a public-private alliance has transformed Argentina into a remarkable global actor in developing biotechnological products for food and renewable energies. This strategic alliance resulted in the boosting of scientific knowledge, the extension of the production boundary, the expansion of international trade and the creation of the conditions for an integral development. Furthermore, given the characteristics of biotechnology as a new phenomenon, wto has become the field within where a number of disputes take place, disputes which not only controvert trade issues, but also the State’s limits to design and apply public policies on the matter at issue. As a consequence, the present article seeks to, on the one hand, describe how Argentina built its public policy on Biotechnology and, on the other hand, analyze the challenges that Argentina faces within the multilateral trade system

  17. Tareas que realizan los bibliotecarios universitarios en Argentina

    Directory of Open Access Journals (Sweden)

    Werner Agazzi

    2011-08-01

    Full Text Available El presente estudio es una investigación descriptiva que pretende conocer las tareas que realizan los bibliotecarios en las bibliotecas universitarias argentinas, abordando el tema desde la perspectiva de las competencias laborales y el actual perfil del bibliotecario universitario. Mediante la utilización de un cuestionario enviado a las direcciones de e-mail de bibliotecas universitarias argentinas se compilaron datos sobre las tareas que realizan los bibliotecarios en esas instituciones. A través de este proceso también se compilaron datos relacionados con las tareas de comunicación vía e-mail por parte de las bibliotecas universitarias argentinas.

  18. Las microfinanzas en Argentina: teorías y experiencias

    Directory of Open Access Journals (Sweden)

    Martha Bekerman

    2004-01-01

    Full Text Available El presente trabajo intenta introducir la temática del estado actual de las microfinanzas en Argentina. Para ello se combina el abordaje teórico con el práctico. El análisis teórico gira en torno a los conflictos entre sustentabilidad e impacto social, por un lado y sustentabilidad y escala por el otro, conceptos que se definen en el texto. El análisis empírico, por su parte, consta de una descripción de la situación de las microfinanzas en Argentina basada en los datos disponibles, más un estudio de campo. Este último, realizado a los efectos de comprender el impacto de los conflictos mencionados en la estructura de microfinanzas particular de Argentina.

  19. Brasil, Argentina e América do Sul

    Directory of Open Access Journals (Sweden)

    Paulo Nogueira Batista Jr.

    2005-12-01

    Full Text Available ESTE trabalho discute alguns aspectos da evolução econômica recente do Brasil, da Argentina e de outros países da América do Sul. Tendências econômicas e intelectuais perigosas, tais como a "globalização", o chamado Consenso de Washington, a dolarização e as negociações da Alca (Área de Livre Comércio das Américas, perderam ímpeto e a América do Sul está se movendo gradualmente na direção de um posicionamento mais independente na condução das suas política econômicas e internacionais. As mudanças foram muito mais significativas na Argentina do que no Brasil e isso se tornou fonte de alguma tensão entre os dois principais países sul-americanos. Não obstante, uma aliança estratégica entre Argentina e Brasil continua sendo a pedra angular da integração da América do Sul.THIS PAPER discusses some aspects of the recent economic evolution of Brazil, Argentina and other South American countries. Dangerous economic and intellectual trends, such as "globalization", the so-called Washington Consensus, dollarization, and FTAA (Free Trade Area of the Americas negotiations, have lost momentum and South America is moving gradually towards a more independent stance in the conduct of its economic and foreign policies. Changes have been much more significant in Argentina than in Brazil and this has become a source of some tension between the two major South American countries. Nevertheless, a strategic alliance between Argentina and Brazil remains the corner stone of South American integration.

  20. A rivalidade Brasil-Argentina e a Guerra Fria

    OpenAIRE

    Carlos Eduardo Vidigal

    2014-01-01

    Peronismo e anti-peronismo definiram o padrão da rivalidade Brasil-Argentina no contexto do início da guerra fria. Inúmeros documentos diplomáticos brasileiros – ofícios, despachos, memorandos, telegramas – datados dos anos de 1946 a 1948 apresentavam em seus títulos temas como “infiltração argentina no Sul do Brasil”, “expansionismo político da Argentina”, “política expansionista da Argentina”, etc. Pode-se afirmar que o anti-peronismo consolidou-se em setores dirigentes do país, por meio...

  1. The other immigration to Argentina: the case of Adolf Eichmann

    Directory of Open Access Journals (Sweden)

    Christian Cwik

    2014-01-01

    Full Text Available Adolf Eichmann llegó a la Argentina como otros 500 Nazis forajidos a través de una red de traficantes ilegales de migrantes entre 1945 y 1955. Esta red fue el resuldado del interés de la República de Argentina, la Cruz Roja, la Caritas y el Vaticano por un lado y por el otro los delincuentes. Eichmann la cara de la ‘banalidad del mal’, como Hannah Arendt escribió en su libro “Eichmann en Jerusalén: un estudio sobre la banalidad del mal”(2ª. edición, traducción de Carlos Ribalta, Barcelona, Lumen, 1999 tuvo bastantes problemas para integrarse en la sociedad argentina y por ende, fracasó. Adolf Eichmann nacido en 1906 en Solingen/Alemania personificó un caractér típico de la sociedad en la posguerra austriaca-alemana, lo que hizo que fracasara en su vida laboral varias veces durante los veintes y los inicios de los treinta del siglo XX.Palabras Clave: Adolf Eichmann;  Holocausto; Tráfico Ilegal de Migrantes; Inmigración en Argentina; Peronismo; Tribunales Internacionales. La otra inmigración a Argentina: El caso de Adolf EichmannAbstractAdolf Eichmann arrived to Argentina along with other 500 runaway Nazis thorugh a smuggling network between 1945 and 1955. This network was the result of the interest shown by the The Republic of Argentina, the Red Cross, Caritas and the Vatican in one hand; in the other, the criminals of war. Eichmann, the face of Hanna Arendt’s t “Banality of Evil” had numerous troubles to integrate to argentinian society, failing as a result.Adolf Eichmann, born in 1906 in Solingen, Germany, personified a typical Austrian-german postwar character, a fact that conduced to his laboral failure in the twentys and early thirties of the twentieth century.Keywords:Adolf Eichmann; Holocaust; Nazi Criminals; Trafficking of migrants; Post War Period; Immigration to Argentina; Peronism; Mossad; International Tribunal. 

  2. Cryptosporidium varanii infection in leopard geckos (Eublepharis macularius) in Argentina

    Science.gov (United States)

    Dellarupe, A.; Unzaga, J.M.; Moré, G.; Kienast, M.; Larsen, A.; Stiebel, C.; Rambeaud, M.; Venturini, M.C.

    2016-01-01

    Cryptosporidiosis is observed in reptiles with high morbidity and considerable mortality. The objective of this study was to achieve the molecular identification of Cryptosporidium spp. in pet leopard geckos (Eublepharis macularius) from a breeder colony in Buenos Aires, Argentina. Oocysts comparable to those of Cryptosporidium spp. were detected in three geckos with a history of diarrhea, anorexia and cachexia. Molecular identification methods confirmed the presence of Cryptosporidium varanii (syn. C. saurophilum). This agent was considered to be the primary cause of the observed clinical disease. This is the first description of C. varanii infection in pet reptiles in Argentina. PMID:27419102

  3. Cryptosporidium varanii infection in leopard geckos (Eublepharis macularius) in Argentina.

    Science.gov (United States)

    Dellarupe, A; Unzaga, J M; Moré, G; Kienast, M; Larsen, A; Stiebel, C; Rambeaud, M; Venturini, M C

    2016-01-01

    Cryptosporidiosis is observed in reptiles with high morbidity and considerable mortality. The objective of this study was to achieve the molecular identification of Cryptosporidium spp. in pet leopard geckos (Eublepharis macularius) from a breeder colony in Buenos Aires, Argentina. Oocysts comparable to those of Cryptosporidium spp. were detected in three geckos with a history of diarrhea, anorexia and cachexia. Molecular identification methods confirmed the presence of Cryptosporidium varanii (syn. C. saurophilum). This agent was considered to be the primary cause of the observed clinical disease. This is the first description of C. varanii infection in pet reptiles in Argentina. PMID:27419102

  4. International Uranium Resources Evaluation Project (IUREP) national favourability studies: Argentina

    International Nuclear Information System (INIS)

    Argentina is a predominantly lowland area of 2,789,240 square kilometers. The capital is Buenos Aires. The entire length of Argentina is bordered on the west by the Andes Mountains. Tile Northwest Andes-Piedmont region consists of deep valleys containing salt basins and volcanoes, and is an earthquake zone. Patagonia, in the south, is essentially an arid region of windy plateaus and valleys. The southern Andes are narrower and lower than the northern Andes and in the extreme south contain glaciers and ice fields. The east-central plain (Pampa) of Argentina has dry and humid sectors and contains most of the population. The largest rivers are chiefly in the northeast, many having only seasonal flow. There has been extensive surface and subsurface exploration for uranium in Argentina for over 20 years. Although most of the work has been performed by the CNEA, advisors from the U.S. and from the IAEA have also taken part. Private industry has been involved, but apparently only on a small scale. In the OECD report of 1970, it was stated that 400,000 square kilometers of Argentina appear very favorable for uranium while an additional 900,000 square kilometers offer fair possibilities. Uranium exploration to date suggests that sandstones of Permian and Cretaceous ages exposed in Western Argentina in the Cordillera are very promising for discovery of new deposits. Past CNEA estimates have indicated that there is considerable hope for new discoveries in those areas where reserves are now known. In addition to the known uraniferous provinces which are indeed favorable for further exploration, there are several other large areas that warrant attention. There are, for example, in the Santa Cruz area of about 15,500 square kilometers Cretaceous and Tertiary sediments with favorable facies for uranium deposition. In the Patagonia Cordillera, Jurassic, Cretaceous, and Tertiary sediments are of interest for prospecting, These rocks contain carbonaceous material and have been

  5. El cambio externo y las estrategias internacionales de la Argentina

    OpenAIRE

    Miranda, Roberto Alfredo

    2001-01-01

    Uno de los problemas más significativos de la evolución y el presente de la política internacional de la Argentina es su relación con el cambio externo. Se suele suponer que muchas de las frustraciones de política exterior están vinculadas al impacto que sobre la Argentina ejercen las transformaciones del contexto externo. Una de estas frustraciones es la política de inserción internacional sobre la cual el cambio habitualmente la expone como una política inconsistente. En este trabajo se pla...

  6. La calidad institucional en Argentina en el largo plazo

    OpenAIRE

    Aráoz, María Florencia

    2011-01-01

    La evolución de la economía argentina en el período 1862-2008 ha sido por lo menos desconcertante. Entre 1860 y 1930 Argentina creció a un ritmo con pocos paralelos en la historia económica mundial. En los años siguientes, sin embargo, comenzó un proceso de desaceleración y estancamiento que paulatinamente la alejó de esa posición privilegiada. Diversos autores han intentado explicar las causas de este comportamiento y aunque algunos destacan el papel negativo de un marco institucional débil,...

  7. The Limits to Dollarization in Ecuador: Lessons from Argentina

    Directory of Open Access Journals (Sweden)

    Matias Vernengo

    2015-08-01

    Full Text Available The paper draws lessons from the failed Argentine experience with convertibility to highlight the dangers of dollarization in Ecuador. Argentina’s currency peg to the US dollar was successful in reducing inflation but given the overvalued real exchange rate, created burgeoning twin deficits and a chronic dependency on foreign capital. Ecuador too suffers from chronic current account imbalance. In contrast to Argentina, Ecuador seems to be relying on remittance income to close its external financing gap. Though perhaps this model is less unstable than that of relying on foreign capital it is no more sustainable. The paper closes with a realistic critique of thisdevelopment strategy.

  8. Equidad en calidad educativa: Argentina y el mundo

    OpenAIRE

    Garlati Bertoldi, Pablo Adrián

    2011-01-01

    Mediante un índice propio usando datos del Programa para la Evaluación Internacional (PISA) de 2000 y 2006 se examina la equidad en calidad educativa de Argentina respecto de otros países. Para la mayor parte de los países la calidad educativa es pro-rica y progresiva mientras que para una porción menor de países hay diferencias a favor de mujeres e inmigrantes. En Argentina el efecto del nivel socioeconómico sobre la calidad educativa es mayor al de otros países, no hay diferencias entre sex...

  9. Two new species of Psectrascelis (Coleoptera: Tenebrionidae from western Argentina

    Directory of Open Access Journals (Sweden)

    Gustavo E. FLORES

    2007-01-01

    Full Text Available Se describen dos nuevas especies del género Psectrascelis Solier (Pimeliinae: Nycteliini del oeste de Argentina, P. argentina sp. nov. a gran altitud en la Precordillera de San Juan y P. telteca sp. nov. en la llanura de Mendoza, y se las incluye en la clave mas reciente del género. Se proveen datos sobre la distribución y el hábitat, así como fotografías de los adultos y pronotos y dibujos de los genitalia masculinos.

  10. The other immigration to Argentina: the case of Adolf Eichmann

    OpenAIRE

    Christian Cwik

    2014-01-01

    Adolf Eichmann llegó a la Argentina como otros 500 Nazis forajidos a través de una red de traficantes ilegales de migrantes entre 1945 y 1955. Esta red fue el resuldado del interés de la República de Argentina, la Cruz Roja, la Caritas y el Vaticano por un lado y por el otro los delincuentes. Eichmann la cara de la ‘banalidad del mal’, como Hannah Arendt escribió en su libro “Eichmann en Jerusalén: un estudio sobre la banalidad del mal”(2ª. edición, traducción de Carlos Ribalta, Barcelona, Lu...

  11. Cryptosporidium varanii infection in leopard geckos (Eublepharis macularius in Argentina

    Directory of Open Access Journals (Sweden)

    A. Dellarupe

    2016-06-01

    Full Text Available Cryptosporidiosis is observed in reptiles with high morbidity and considerable mortality. The objective of this study was to achieve the molecular identification of Cryptosporidium spp. in pet leopard geckos (Eublepharis macularius from a breeder colony in Buenos Aires, Argentina. Oocysts comparable to those of Cryptosporidium spp. were detected in three geckos with a history of diarrhea, anorexia and cachexia. Molecular identification methods confirmed the presence of Cryptosporidium varanii (syn. C. saurophilum. This agent was considered to be the primary cause of the observed clinical disease. This is the first description of C. varanii infection in pet reptiles in Argentina.

  12. Scenarios for wind power in Brazil, Argentina and Chile; Cenarios para a energia eolio eletrica no Brasil, Argentina e Chile

    Energy Technology Data Exchange (ETDEWEB)

    Dedecca, Joao Gorestein; Nogueira, Larissa Goncalves; Jannuzzi, Gilberto de Martino [Universidade Estadual de Campinas (UNICAMP), SP (Brazil). Fac. de Engenharia Mecanica. Dept. de Energia], emails: jdedecca@fem.unicamp.br, larissa@fem.unicamp.br, januzzi@fem.unicamp.br; Gomes, Rodolfo Dourado [International Energy Initiative-Latin America (IEI-LA), Campinas, SP (Brazil)], email: rodolfo@iei-la.org

    2010-07-01

    The Chilean, Argentinean and Brazilian power matrixes presented in the last two decades a growth of the non-renewable energy sources share, especially fossil sources, mainly in installed capacity and in a lesser degree in energy production. Greenpeace and the European Renewable Energy Council have elaborated a reference energy scenario together with a scenario analyzing the institution of ample measures for the promotion of renewable energy sources. Feed-in tariffs and auction or bidding mechanisms implemented in Brazil and Argentina and the renewable portfolio standard implemented in Chile allied with the wind industry state in these countries indicate that Chile and Argentina will fulfill the 2020 wind power installed capacity predicted in the reference scenarios, while Brazil will reach the energy revolution scenario prediction. Important energy policy changes are required if the Chile and Argentina energy revolution scenarios wind power installed capacity are to become a reality in 2020. (author)

  13. en el desierto del Monte, Argentina

    Directory of Open Access Journals (Sweden)

    C.M. Campos

    2015-01-01

    Full Text Available Los bosques de Prosopis flexuosa proporcionan múltiples bienes y servicios. Actualmente, sufren una fuerte retracción debido a un uso histórico extractivistay se hace necesario promover la conservación y el manejo sostenible de los bosques como sistema. El objetivo del trabajo es sintetizarel conocimiento disponible acerca de las interacciones mutualistas y antagonistas entre mamíferos, frutos y semillas de P. flexuosa, comparandocon estudios realizados en otras especies de Prosopis de Argentina. Se considera a dos grupos de consumidores oportunistas de frutos: almacenadoresen cúmulos dispersos y frugívoros. Los roedores pequeños (como Eligmodontia typus y Microcavia australis son dispersores de semillasporque depredan pocas semillas y almacenan el resto en cúmulos sobre la superficie del suelo. Mamíferos frugívoros oportunistas silvestres (Dolichotispatagonum, Lepus europaeus, Lycalopex griseus, Lama guanicoe, etc. y domésticos (burro, caballo, vaca son dispersores endozoocóricosy proporcionan beneficios como el traslado de grandes cantidades de semillas, la eliminación de estructuras que mantienen la dormición y la desinfecciónde semillas atacadas por insectos. Sin embargo, la endozoocoria tiene costos sobre la viabilidad y la capacidad germinativa de las semillas.Ante un panorama de continuos cambios en el uso de la tierra y de cambio climático global, el conocimiento acerca del espectro diverso de animalesque proporcionan el beneficio de dispersión de semillas aporta bases científicas para considerar que la biodiversidad asociada a los bosques debeincluirse en la gestión y conservación de los mismos.

  14. fuego en Argentina, 1980-2012

    Directory of Open Access Journals (Sweden)

    Hugo Spinelli

    2015-01-01

    Full Text Available Este trabajo analiza el impacto de las armas de fuego en la mortalidad entre los años 1980-2012 en Argentina. Para ello se realiza un estudio epidemiológico descriptivo de la tendencia temporal, a través de las siguientes variables: sexo, grupos de edad, intencionalidad y jurisdicción. Los datos fueron obtenidos en la Dirección de Estadísticas e Información en Salud del Ministerio de Salud de la Nación. Se encontraron 87.671 muertes por armas de fuego. Los varones representaron el 85,7% y su tasa más alta fue para el año 2002 con 21,2 muertes por 100.000 habitantes. El grupo de edad que concentró la mayor cantidad de muertes por armas de fuego fue el de 20 a 29 años (25,6%. Las tasas ajustadas más altas corresponden a los años 2000-2002 con valores entre 10,0 y 11,6 muertes por cada 100.000 habitantes, período que coincide con la crisis económicoinstitucional que atravesó el país. La provincia de Buenos Aires fue el lugar de residencia del 49,1% de las muertes. En la discusión se abordan dimensiones político-económicas e ideológico-culturales en la relación entre armas, violencias, ciencia y sociedad.

  15. Brasil y Argentina, 1990-2005

    Directory of Open Access Journals (Sweden)

    Marina Gabriela Zunino

    2008-01-01

    Full Text Available Con el objetivo de analizar la mortalidad por armas de fuego en Brasil y Argentina entre 1990 y 2005, se realizó un estudio epidemiológico descriptivo utilizando datos oficiales de mortalidad de ambos países. Se analizaron número, proporción y tasas crudas y ajustadas para cada tipo de muerte (catalogadas según la CIE-9a y CIE-10a, el total por año y el promedio anual del período, sexo y edad. Los perfiles globales de los dos países presentaron tendencia creciente, pero Brasil mostró valores superiores de muertes y homicidios por armas de fuego en todo el período. A partir de los resultados se discute la hipótesis: el perfil de Brasil, particularmente el de homicidios por armas de fuego, es consecuencia no solo de la violencia social que responde a la persistentemente alta desigualdad y exclusión en que vive gran parte de la población, sino también al surgimiento, expansión y fortalecimiento de diversos grupos armados en ese país. El perfil argentino resultaría en parte del aumento de la violencia social también como respuesta al deterioro socioeconómico imperante, y por otra parte, sería consecuencia de la histórica monopolización de la violencia por parte del Estado

  16. Analysis of cattle movements in Argentina, 2005.

    Science.gov (United States)

    Aznar, M N; Stevenson, M A; Zarich, L; León, E A

    2011-02-01

    We describe the movement of cattle throughout Argentina in 2005. Details of farm-to-farm and farm-to-slaughter movements of cattle were obtained from the Sanitary Management System database (Sistema de Gestión Sanitaria, SGS), maintained by the National Service for Agrifood Health and Quality (SENASA). Movements were described at the regional and district level in terms of frequency, the number of stock transported, the district of origin and destination and Euclidean distance traveled. Social network analysis was used to characterize the connections made between regions and districts as a result of cattle movement transactions, and to show how these characteristics might influence disease spread. Throughout 2005 a total of 1.3 million movement events involving 32 million head of cattle (equivalent to approximately 57% of the national herd) were recorded in the SGS database. The greatest number of farm-to-farm movements occurred from April to June whereas numbers of farm-to-slaughter movement events were relatively constant throughout the year. Throughout 2005 there was a 1.1-1.6-fold increase in the number of farm-to-farm movements of cattle during April-June, compared with other times of the year. District in-degree and out-degree scores varied by season, with higher maximum scores during the autumn and winter compared with summer and spring. Districts with high in-degree scores were concentrated in the Finishing region of the country whereas districts with high out-degree scores were concentrated not only in the Finishing region but also in Mesopotamia, eastern Border and southern Central regions. Although movements of cattle from the Border region tended not to be mediated via markets, the small number of districts in this area with relatively high out-degree scores is a cause for concern as they have the potential to distribute infectious disease widely, in the event of an incursion. PMID:21122931

  17. Designing as middle ground

    DEFF Research Database (Denmark)

    Nickelsen, Niels Christian Mossfeldt; Binder, Thomas

    2010-01-01

    The theoretical background in this chapter is science and technology studies and actor network theory, enabling investigation of heterogeneity, agency and perfor-mative effects through ‘symmetric’ analysis. The concept of design is defined as being imaginative and mindful to a number of actors...... research is an articulation of design activity taking place as a middle ground and as an intermixture between a ‘scientific’ regime of knowledge transfer and a capital ‘D’ ‘Designerly’ regime of authoring....

  18. MIDDLE CLASS MOVEMENTS

    OpenAIRE

    Dr. K. Sravana Kumar

    2016-01-01

                The middle class is placed between labour and capital. It neither directly awns the means of production that pumps out the surplus generated by wage labour power, nor does it, by its own labour, produce the surplus which has use and exchange value. Broadly speaking, this class consists of the petty bourgeoisie and the white-collar workers. The former are either self-employed or involved in the distribution of commodities and t...

  19. Summary of CRP participants' reports: Argentina

    International Nuclear Information System (INIS)

    The activities of the Argentinean research group participating in the CRP can be briefly summarized in the following items: - Implementation of algorithms to extract dynamical features of the liquid and solid motion in multiphase systems. Particularly, analysis of radioactive tracer trajectories moving freely in 3D mock-ups of different multiphase reactors. - Development and implementation of algorithms capable of classifying flow regimes and diagnosing flow regime transitions in multiphase contactors, particularly bubble columns, three-phase fluidized beds and circulating fluidized beds. - Development, mounting and implementation of a Computer Automated Radioactive Particle Tracking (CARPT) facility in Argentina in collaboration with a group of the National Commission of Atomic Energy (CNEA). Multiphase systems are ubiquitous in industrial practice, either in pipes, operation units and multiphase reactors (MPR). MPR are vessels where two or more phases are brought together for a chemical transformation to take place. They are extensively used for quite diverse applications ranging from the upgrading and conversion of petroleum feed-stocks, with a huge installed capacity, to the manufacture of pharmaceuticals or fine-chemicals, and ever present in biotechnological processes. The gamma emission tomography of a single radioactive tracer, frequently called Computer Automated Radioactive Particle Tracking (CARPT), provides a massive amount of information on the traced phase motion, which has been used to determine characteristic features, like Eulerian velocity fields, turbulence intensities, dispersion coefficients, phase distribution, etc. The fluid dynamics in MPR is extremely complex due to interaction of the coexisting phases, particularly for fluidized systems or gas-liquid systems at high gas velocities. Moreover, these systems dynamics frequently have chaotic features and are far from being understood. Hence, further insights on fundamentals of the motions are

  20. Cultural change in Argentina during the sixties. An analysis of the daily newspaper La Nación

    Directory of Open Access Journals (Sweden)

    Belén Agostini

    2015-06-01

    Full Text Available In this paper we present a study of the process of cultural and social change developed in Argentina during the sixties, focusing on the appeal that authoritarianism might have had on society. Our hypothesis is that among middle classes, such appeal could have been lower than suggested in other research. From the analysis of “Columnas de la juventud” (youth columns, published by the daily newspaper La Nación –since 1965 to 1973-, we suggest that certain cultural transformations promoted by young people, were produced in a relatively short period of time –ten years-. During that interval, the representations that La Nación offered of such transformations turned from annoyance to fascination. This fact suggests that the acceptance of change in the standards of behaviour was very extended. The idea of an authoritarian society does not enable us to understand this process.

  1. Una especie nueva de Trechisibus de la Argentina (Coleoptera: Carabidae) A new species of Trechisibus from Argentina (Coleoptera: Carabidae)

    OpenAIRE

    Sergio Roig-Juñent; Soledad Sallenave

    2005-01-01

    RESUMEN. Las Trechini constituyen una tribu de Carabidae distribuida ampliamente en la región Andino Patagónica. A pesar de que existen varias revisiones parciales de esta tribu para la Argentina y Chile, es muy común hallar especies nuevas, debido sobre todo a la prospección de áreas no exploradas. En este aporte se describe una especie nueva del género Trechisibus Jeannel del Cerro Nevado (Mendoza, Argentina). Por sus características morfológicas pertenece al grupo de especies depressus. Se...

  2. La mortalidad por armas de fuego en Argentina entre 1990 y 2008 Firearm mortality in Argentina, 1990-2008

    OpenAIRE

    Marina Gabriela Zunino; Edinilsa Ramos de Souza

    2012-01-01

    Este es un estudio epidemiológico descriptivo de la mortalidad por armas de fuego en Argentina, 1990-2008. Se analizaron los porcentajes y las tasas de mortalidad por armas de fuego entre las jurisdicciones del país. Los datos provienen de la Dirección de Estadística e Información en Salud, Ministerio de Salud y Ambiente, República Argentina. Entre 1990-2008 se produjeron 358.484 muertes por causas externas de las cuales el 16,6% (59.339) correspondieron a armas de fuego. La Provincia de Buen...

  3. Notas sobre fanerógamas de la flora argentina

    Directory of Open Access Journals (Sweden)

    Raúl Martínez Crovetto

    2010-11-01

    Full Text Available Se informa la existencia en Argentina de ocho especies de pastos marinos no catalogados. Ellos son Bromus inermis, Melinis minutiflora, Pennisetum purpureum, Melia azedarach, Anethum graueolens, Costus pilgeri, Desmodium arechaualetae  e Ipomoea morongii. Se menciona también el cultivo de Gymnopogon biflorus y Heteropterys angustifolia.

  4. Palmer Amaranth Identification and Documentation of Herbicide Resistance in Argentina

    Science.gov (United States)

    Palmer amaranth (Amaranthuspalmeri S. Wats.) has greatly disrupted agricultural practices in the US with its rapid growth and rapid evolution of herbicide resistance. This weed species is now suspected in Argentina. To document whether the suspected plant populations are indeed Palmer amaranth, mo...

  5. Burnout, Perceived Stress, and Depression among Cardiology Residents in Argentina

    Science.gov (United States)

    Waldman, Silvina V.; Diez, Juan Cruz Lopez; Arazi, Hernan Cohen; Linetzky, Bruno; Guinjoan, Salvador; Grancelli, Hugo

    2009-01-01

    Objective: Because medical residency is a stressful time for training physicians, placing residents at increased risk for psychological distress, the authors studied the prevalence of burnout, perceived stress, and depression in cardiology residents in Argentina and examined the association between sociodemographic characteristics and these…

  6. Egg parasitoid of Saccharosydne subandina (Hemiptera: Delphacidae) in Neuquen, Argentina

    Science.gov (United States)

    Saccharosydne subandina Remes Lenicov & Rossi Batiz is a recently described planthopper from Argentina which is known to feed on garlic, rye, and pampas grass (de Remes-Lenicov & Rossi-Batiz 2010). During a trip to Neuquén Province in February 2007, we noticed a heavy infestation of pampas grass, Co...

  7. Rewriting Citizenship? Civic Education in Costa Rica and Argentina

    Science.gov (United States)

    Suarez, David F.

    2008-01-01

    To what degree are nations "rewriting" citizenship by expanding discussions of human rights, diversity and cultural pluralism in modern civic education, and what explains variation between countries? This study addresses these issues by analysing the intended content of civic education in Costa Rica and Argentina. Over time, civic education in…

  8. IQ Gains in Argentina between 1964 and 1998

    Science.gov (United States)

    Flynn, James R.; Rossi-Case, Lilia

    2012-01-01

    The literature on IQ gains in Latin America is sparse. We estimate gains on Raven's Progressive Matrices in the city of La Plata (Argentina) between 1964 and 1998. The gains are robust at the top of the curve as well as at the bottom. Therefore, they are contrary to the hypothesis that nutrition played a major role in recent Argentine IQ gains.…

  9. Equality of Educational Opportunities at Public Primary Schools in Argentina

    Science.gov (United States)

    Adrogue, Cecilia

    2013-01-01

    This paper assesses the degree of equality of educational opportunities across Argentina's public primary schools. The main finding is that there are inequalities between jurisdictions, but even greater inequalities within them, suggesting the existence of serious problems in the distribution of resources at the sub-national level. Following…

  10. Notas sobre fanerógamas de la flora argentina

    OpenAIRE

    Raúl Martínez Crovetto

    2010-01-01

    Se informa la existencia en Argentina de ocho especies de pastos marinos no catalogados. Ellos son Bromus inermis, Melinis minutiflora, Pennisetum purpureum, Melia azedarach, Anethum graueolens, Costus pilgeri, Desmodium arechaualetae  e Ipomoea morongii. Se menciona también el cultivo de Gymnopogon biflorus y Heteropterys angustifolia.

  11. A study on the reconstruction of Los Acantilados Beach, Argentina

    NARCIS (Netherlands)

    Algera, A.; Burger, B.; Hartog, W.M.; De Rijke, Q.C.

    2004-01-01

    The city of Mar del Plata is situated some 400 km South of Buenos Aires, the capital of Argentina. The city has two main incomes, namely industry and tourism. In summer, beaches of this Atlantic Ocean faced destination are packed with typical Argentine beach tents, which can be rented, and people fr

  12. 77 FR 45653 - Lemon Juice From Argentina and Mexico

    Science.gov (United States)

    2012-08-01

    ... investigations on imports of lemon juice from Argentina and Mexico (72 FR 53991 and 53995, September 21, 2007..., and F (19 CFR part 207), as most recently amended at 74 FR 2847 (January 16, 2009). \\1\\ No response to... employment statute for Federal employees, and Commission rule 201.15(b) (19 CFR 201.15(b)), 73 FR 24609...

  13. 78 FR 47006 - Lemon Juice From Argentina and Mexico

    Science.gov (United States)

    2013-08-02

    ... lemon juice from Argentina. Background The Commission instituted these reviews on August 1, 2012 (77 FR 45653) and determined on November 5, 2012 that it would conduct full reviews (77 FR 67833, November 14... 5, 2012 (77 FR 72384). The hearing was held in Washington, DC, on May 16, 2013, and all persons...

  14. 78 FR 46610 - Lemon Juice From Argentina and Mexico

    Science.gov (United States)

    2013-08-01

    ... lemon juice from Argentina. Background The Commission instituted these reviews on August 1, 2012 (77 FR 45653) and determined on November 5, 2012 that it would conduct full reviews (77 FR 67833, November 14... 5, 2012 (77 FR 72384). The hearing was held in Washington, DC, on May 16, 2013, and all persons...

  15. Phenomenal Justice : State Violence, Emotion, and the Law in Argentina

    NARCIS (Netherlands)

    van Roekel, E.

    2016-01-01

    This ethnography is about the trials for crimes against humanity in Argentina, which belong to complex social processes dealing with the human rights crimes that were committed during the last dictatorship that ruled from 1976-1983. In academic debates the term ‘transitional justice’ is often used t

  16. Communication received from the Resident Representatives of Argentina and Brazil

    International Nuclear Information System (INIS)

    The document reproduces the communication received by the Director General from the Resident Representatives of Argentina and Brazil to the Agency to inform him about the official inauguration on 9 December 1992 of the headquarters of the Brazilian-Argentine Agency for Accounting and Control of Nuclear Materials (ABACC) in Rio de Janeiro

  17. Reshaping Power Markets-Lessons from Chile and Argentina

    OpenAIRE

    Lalor, R. Peter; García, Hernán

    1996-01-01

    Power sector reforms in Chile and Argentina are now roughly fourteen and four years old. In both countries, restructuring and deregulation have increased efficiency, led to active entry by new generators, improved the quality of supply, and reduced prices in real terms. The authors' review of experience in both systems confirms that policymakers must apply effective measures to introduce a...

  18. Hemolytic uremic syndrome in Argentina: An attack scenario

    Directory of Open Access Journals (Sweden)

    Alcides Troncoso

    2013-08-01

    Full Text Available The recent Escherichia coli epidemic in Germany gave a lesson at an international level. There is no time to solve food security problems when an epidemic is on the way. The epidemic in Germany exposed the fissures in the control systems of the Federal Risk Evaluation Institute of this country, as well as showing the incompetency of health authorities, who had great difficulty in resolving the situation. To summarize, the possibility of prevention was confused with the utopian idea of non-occurrence. It was not less important the public’s recognition and the “awakening” of health ministers in the European Union as regards the proven fact that pathogenic and even lethal microorganisms may be present in the food we eat. Argentina has the highest incidence of hemolytic uremic syndrome in the world, and the next epidemic is likely not to occur in Germany, but in any other country, such as Argentina. In order to avoid complicity, we do not wish to remain silent about the situation in Argentina. Therefore, this is the writer’s motive for writing this article, which describes the scientific advances and the ethical pitfalls related to a disease transmitted by food, particularly hemolytic uremic syndrome, in Argentina.

  19. Soil Metagenomes from Different Pristine Environments of Northwest Argentina

    OpenAIRE

    McCarthy, Christina B.; Colman, Déborah I.

    2015-01-01

    This is the first study to use a high-throughput metagenomic shotgun approach to explore the biosynthetic potential of soil metagenomes from different pristine environments of northwest Argentina. Our data sets characterize these metagenomes and provide information on the possible effect these ecosystems have on their diversity and biosynthetic potential.

  20. Horticulture in Argentina: a productive alternative with great potential

    Directory of Open Access Journals (Sweden)

    Ana Maria Castagnino

    2011-12-01

    Full Text Available Horticulture in Argentina is an activity with great potential whose history has mainly been driven by Italian immigrants who arrived during the last two centuries. It is a valuable complement for traditional primary productions on which the country is focused with more than 30 millions of cultivated hectares and different agro-climatic conditions that characterize the different horticultural regions distributed throughout the country. The aim of this article is to give a panorama of the history, reality and perspectives in Argentina of an activity that is an opportunity for producers and entrepreneurs interested in it. Due to its characteristics, horticulture generates and dynamizes employment with great importance for regional economies. The proportion between vegetables and fruit produced and commercialized in Argentina is 63 and 34% respectively. Horticultural products for exportation largely are garlic, onion and beans. Concerning the most commercialized vegetables in Argentina, potato, tomato, onion, squash, lettuce, pepper, marrow and sweet potato stand out, whereas orange, tangerine, apple, banana, lemon, pear, grape and grapefruit may be highlighted among fruit. At present, the main challenge of the Argentinian horticultural sector is given not only by the possibilities of productive diversification and the expansion of the productive area but also of the technological level optimization, the application of quality norms and the agro-industry growth.

  1. Natural Radionuclide Activity Concentrations In Spas Of Argentina

    Science.gov (United States)

    Gnoni, G.; Czerniczyniec, M.; Canoba, A.; Palacios, M.

    2008-08-01

    Geothermal waters have been used on a large scale for bathing, drinking and medical purposes. These waters can contain natural radionuclides that may increase the exposure to people. In this work the most important natural radionuclide activity concentrations in different thermal spas of Argentina were measured to characterize waters and to evaluate the exposure of workers and members of the public.

  2. A review of the fleas (Insecta: Siphonaptera) from Argentina.

    Science.gov (United States)

    Lareschi, Marcela; Sanchez, Juliana; Autino, Analía

    2016-01-01

    The Order Siphonaptera comprises cosmopolitan haematophagous ectoparasites of birds and mammals. More than ten years have past since the last list of species known for Argentina. Herein we provide a review of the fleas from the country, which includes an updated list, host species and geographical distribution for each taxa, as well as some comments. We report 127 species and subspecies belonging to eleven different families; 42 of these species are endemic. Four genera (Adoratopsylla, Cleopsylla, Ctenidiosomus, and Nonnapsylla) and six species and subspecies (Adoratopsylla (Adoratopsylla) antiquorum antiquorum, Agastopsylla pearsoni, Polygenis (Polygenis) roberti beebei, Plocopsylla (Plocopsylla) silewi, Plocopsylla (Plocopsylla) wilesi and Tunga terasma) are added to the list for Argentina. Nine species new to science are included, described on the bases of specimens collected from Argentina (Ctenidiosomus austrinus, Ectinorus (Ectinorus) lareschiae, Ectinorus (Ectinorus) spiculatus, Ectinorus (Ectinorus) morenoi, Hectopsylla narium, Plocopsylla (Plocopsylla) linardii, Neotyphloceras crackensis, Neotyphloceras pardinasii and Tunga perforans). Information provided herein contributes to the knowledge of the fleas from Argentina, necessary to a better understanding of their role as parasites themselves and vectors of zoonotic importance. PMID:27394731

  3. Transgenic Crops in Argentina: The Ecological and Social Debt

    Science.gov (United States)

    Pengue, Walter A.

    2005-01-01

    There is no doubt that soybean is the most important crop for Argentina, with a planted surface that rose 11,000,000 hectares and a production of around 35,000,000 metric tons. During the 1990s, there was a significant agriculture transformation in the country, motorize by the adoption of transgenic crops (soy-bean, maize, and cotton) under the…

  4. Small mammal distributional patterns in Northwestern Argentina

    Directory of Open Access Journals (Sweden)

    María L. Sandoval

    2015-12-01

    Full Text Available ABSTRACT Quantitative evaluations of species distributional congruence allow evaluating previously proposed biogeographic regionalization and even identify undetected areas of endemism. The geographic scenery of Northwestern Argentina offers ideal conditions for the study of distributional patterns of species since the boundaries of a diverse group of biomes converge in a relatively small region, which also includes a diverse fauna of mammals. In this paper we applied a grid-based explicit method in order to recognize Patterns of Distributional Congruence (PDCs and Areas of Endemism (AEs, and the species (native but non-endemic and endemic, respectively that determine them. Also, we relate these distributional patterns to traditional biogeographic divisions of the study region and with a very recent phytogeographic study and we reconsider what previously rejected as 'spurious' areas. Finally, we assessed the generality of the patterns found. The analysis resulted in 165 consensus areas, characterized by seven species of marsupials, 28 species of bats, and 63 species of rodents, which represents a large percentage of the total species (10, 41, and 73, respectively. Twenty-five percent of the species that characterize consensus areas are endemic to the study region and define six AEs in strict sense while 12 PDCs are mainly defined by widely distributed species. While detailed quantitative analyses of plant species distribution data made by other authors does not result in units that correspond to Cabrera's phytogeographic divisions at this spatial scale, analyses of animal species distribution data does. We were able to identify previously unknown meaningful faunal patterns and more accurately define those already identified. We identify PDCs and AEs that conform Eastern Andean Slopes Patterns, Western High Andes Patterns, and Merged Eastern and Western Andean Slopes Patterns, some of which are re-interpreted at the light of known patterns of the

  5. su evaluación en Argentina

    Directory of Open Access Journals (Sweden)

    María de los Angeles Matos

    2005-01-01

    Full Text Available Se presentan los resultados obtenidos con la intervención basada en Análisis Comportamental Aplicado (ACA o manejo de contingencias, en 9 niños (8 varones y 1 mujer de 2 a 5 años con Trastornos Generalizados del Desarrollo (TGD. Este tratamiento basado en métodos desarrollados por Lovaas y colaboradores (1981 fue implementado en una institución argentina especializada. Se evaluaron las siguientes áreas: comprensión del lenguaje, funciones del comportamiento, nivel de desarrollo mental y grado de autismo. Tres terapeutas administraron las siguientes pruebas: Peabody Picture Vocabulary Test (Dunn & Dunn, 1981, Vineland Adaptative Behavior Scale (Sparrow, Balla & Cicchetti, 1984, Bayley Scales of Infant Development (1993, la Batería de Evaluación Kaufman para Niños (K.ABC de Kaufman y Kaufman (1997 y The Childhood Autism Rating Scale (CARS de Schopler, Reichler, DeVellis y Daly (1988. Los resultados fueron evaluados por una psicóloga que no había participado de la administración. Se utilizó un diseño intra-sujeto antes-después (inicio de la intervención y entre nueve y doce meses después sin grupo control. Los datos se analizaron con Análisis de Variancia (ANOVA de medidas repetidas. Siete participantes obtuvieron cambios positivos significativos en las cuatro áreas estudiadas: uno en tres áreas y uno en dos. Los mejores resultados se obtuvieron en funcionalidad del comportamiento (p < .004 y en dos de sus subdominios: autovalimiento (p < .006 y habilidades motrices (p < .001. También se observaron diferencias significativas en los otros dos subdominios: comunicación (p < .01 y socialización (p < .01. Las diferencias en lenguaje receptivo, funcionamiento intelectual y nivel de autismo también resultaron significativas: (p < .01, (p < .02 y (p < .04 respectivamente.

  6. New records of biting midges from Argentina and Chile (Diptera: Ceratopogonidae Nuevos registros de Ceratopogonidae (Diptera para Argentina y Chile

    Directory of Open Access Journals (Sweden)

    Gustavo R. Spinelli

    2010-06-01

    Full Text Available New records are provided for 22 species of biting midges (Diptera: Ceratopogonidae from Argentina and Chile, 12 belonging to Forcipomyia Meigen, two to Atrichopogon Kieffer and Culicoides Latreille, and one to Leptoconops Skuse, Dasyhelea Kieffer, Paradasyhelea Macfie, Alluaudomyia Kieffer, Macrurohelea Ingram & Macfie and Palpomyia Meigen. Forcipomyia (F. harpegonata Wirth & Soria, F. (F. pictoni Macfie, F. (F. sexvittata Wirth, F. (Lepidohelea annulatipes Macfie, F. (L. kuanoskeles Macfie, F. (Phytohelea jocosa Saunders and F. (Thyridomyia nana (Macfie are firstly recorded from Argentina, and Leptoconops ricardoi Ronderos & Spinelli, Atrichopogon endemicus Spinelli & Marino, Culicoides chacoensis Spinelli & Wirth, Paradasyhelea brevipalpis (Ingram & Macfie and Alluaudomyia schnacki Spinelli are firstly recorded from Chile. Forcipomyia calchaqui Spinelli & Marino is removed from the subgenus Thyridomyia Saunders and assigned to the subgenus Synthyridomyia Saunders.Se brindan nuevas citas de 22 especies de Ceratopogonidae para Argentina y Chile, de las cuales 12 pertenecen a Forcipomyia Meigen, dos a Atrichopogon Kieffer y Culicoides Latreille, y una a Leptoconops Skuse, Dasyhelea Kieffer, Paradasyhelea Macfie, Alluaudomyia Kieffer, Macrurohelea Ingram & Macfie y Palpomyia Meigen. Forcipomyia (F. harpegonata Wirth & Soria, F. (F. pictoni Macfie, F. (F. sexvittata Wirth, F. (Lepidohelea annulatipes Macfie, F. (L. kuanoskeles Macfie, F. (Phytohelea jocosa Saunders y F. (Thyridomyia nana (Macfie son registradas por primera vez para Argentina, mientras que Leptoconops ricardoi Ronderos & Spinelli, Atrichopogon endemicus Spinelli & Marino, Culicoides chacoensis Spinelli & Wirth, Paradasyhelea brevipalpis (Ingram & Macfie y Alluaudomyia schnacki Spinelli lo son para Chile. Se excluye Forcipomyia calchaqui Spinelli & Marino del subgénero Thyridomyia Saunders y se la asigna a Synthyridomyia Saunders.

  7. Cooperation on Water management issues, Argentina : Project in the framework of Bilateral Cooperation between Argentina and the Netherlands

    NARCIS (Netherlands)

    Querner, E.P.

    2006-01-01

    Within the framework of Bilateral Cooperation of the Ministry of Agriculture, Nature Management and Fisheries of the Netherlands, a project will be carried out to find solutions for the water management problems in Argentina. The Pampas suffers from too much water and agriculture is hampered; the Pr

  8. Middle East gas

    International Nuclear Information System (INIS)

    Despite the significant contribution of the Middle East countries of Bahrain, Iran, Iraq, Kuwait, Qatar, Saudi Arabia and the United Arab Emirates in the Arabia Gulf to the world's oil output, they are placing increasing emphasis on natural gas as a source of exports and to fuel domestic economic growth. The region accounts for 35% of the world's proven gas resource base, with Iran and Qatar holding major reserves. The region is becoming increasingly important in global liquefied natural gas (LNG) trade and details of key LNG projects and the major players in this area are given; a key advantage is the region's position between the two main markets - the Asia Pacific and the Atlantic Basin. Brief details are also given of gas pipeline projects and gas-to-liquid (GTL) projects in the region

  9. Crustal structure across the Colorado Basin, offshore Argentina

    Science.gov (United States)

    Franke, Dieter; Neben, Soenke; Schreckenberger, Bernd; Schulze, Albrecht; Stiller, Manfred; Krawczyk, Charlotte M.

    2006-06-01

    The geology of the wide shelves surrounding the South Atlantic is closely linked to the kinematics and history of the opening of the ocean. However, several wide sedimentary basins, which developed along the margins show peculiarities that are not yet understood in the context of the evolution of the South Atlantic. The Colorado Basin, a wide sedimentary basin on the broad shelf of Argentina, extends in EW direction. The basin's evolution oblique or orthogonal to the continent-ocean boundary indicates that it is not a product of simple progressive extension and crustal thinning. In addition a basement high, paralleling the continental margin and separating the Colorado Basin from the deep-sea basin is a common interpretation. These findings are hardly in accordance with the idea that the Colorado Basin is an extensional basin that developed in conjunction with the early E-W opening phase of the South Atlantic in the Late Jurassic/Early Cretaceous. The composition, type, and structure of the basement, key points for the evaluation of the basins evolution, are widely speculative. In this context multichannel seismic reflection data from the Argentine Shelf and a 665-km-long onshore-offshore refraction profile, running across the Colorado Basin onto the coast are discussed in combination with gravity data. The stratigraphy for the sedimentary successions was adopted from the literature and the reflection seismic marker horizons formed besides the interval velocities the input for the starting model for refraction seismic traveltime modelling. The modelling strategy was an iterative procedure between refraction seismic traveltime and gravity modelling. The preparation of the density models was coarsely orientated on published velocity-density relations. The modelling results are in favour of a continuation of the main onshore geological features beneath the sedimentary infill of the Colorado Basin. We interpret the basement along the line from west to east as offshore

  10. Panorama de la familia Asteraceae (= Compositae en la Republica Argentina An overview of the plant family Asteraceae ( = Compositae in Argentina

    Directory of Open Access Journals (Sweden)

    Liliana Katinas

    2007-07-01

    Full Text Available Se presenta un panorama de la familia Asteraceae en la República Argentina , que incluye una breve historia taxonómica, datos numéricos de tribus, géneros y especies, ejemplos de endemismos y daptaciones ecológicas y una reseña sobre la hipótesis del origen de la familia en Patagonia. En la Argentina, las asteráceas representan la familia más numerosa con 227 géneros (cinco son endémicos y ca. 1400 especies (92 son adventicias y 382 son endémicas. En términos de taxones nativos, se hallan representadas en nuestro país todas las tribus de Asteraceae excepto Inuleae (sensu Bremer. Las tribus Arctoteae y Calenduleae están representadas por taxones adventicios exclusivamente y Cardueae posee sólo una especie nativa. Barnadesieae y Mutisieae son las únicas tribus con géneros endémicos de Argentina y también presentan el porcentaje más alto de géneros y especies en el país en comparación con el resto de las tribus. El mayor número de especies nativas, endémicas y no endémicas, se da en las provincias fitogeográficas Altoandina y Patagónica. La tribu más representada en número de géneros es Heliantheae, y en número de especies nativas es Senecioneae.An overview of the family Asteraceae in Argentina that includes a brief taxonomic history, numerical data of tribes, genera and species, examples of endemisms and ecological adaptations, and a discussion on the hypothesis on the origin of the family in Patagonia is given. Asteraceae is the most numerous family in Argentina , with 227 genera (five are endemic and ca. 1400 species (92 are adventitious and 382 are endemic. In relation to the native taxa, all tribes of Asteraceae occur in Argentina excepting Inuleae (sensu Bremer. Tribes Arctoteae and Calenduleae are represented exclusively by adventitious taxa, and Cardueae has only one native species. Barnadesieae and Mutisieae are the only tribes with endemic genera in Argentina and they also present the highest percentage of

  11. Propiedades microbiológicas en un suelo de la patagonia argentina bajo la influencia de diferentes especies forestales Microbiological properties of a soil of the argentine patagonia under the influence of different tree species

    Directory of Open Access Journals (Sweden)

    Diana Noemí Effron

    2011-12-01

    Full Text Available En los sistemas forestales, la hojarasca es generalmente la principal fuente de nutrientes para la vegetación y microorganismos, pudiendo variar éstos en relación a la biomasa y calidad de los materiales aportados por diferentes especies. Las raíces de los árboles ejercen influencia en el desarrollo y actividad de la microflora. El objetivo de este trabajo fue evaluar la influencia sobre el suelo de dos especies arbóreas implantadas, con distinta composición del residuo vegetal aportado al suelo. El suelo está clasificado como un Andisol y está ubicado en la Estación Forestal Trevelín, Chubut, Argentina, Lat. 43º Sur, Long 71º31´ Oeste. Se extrajeron muestras superficiales de suelo de dos parcelas de bosque con una especie dominante cada una: Pino radiata (Pinus radiata D. Don. y Roble europeo (Quercus robur. Se determinó carbono orgánico, respiración microbiana, actividad deshidrogenasa, diversidad funcional de comunidades microbianas asociadas y se calculó el índice de diversidad de Shanon Weaver (H. Se cuantificaron bacterias totales, bacterias amilolíticas, actinomicetes y hongos. Los valores de respiración microbiana y carbono orgánico resultaron significativamente superiores en el suelo debajo de Roble. No se encontraron diferencias significativas entre valores de deshidrogenasa. Los recuentos de flora bacteriana total y de bacterias amilolíticas dieron significativamente superiores en el suelo asociado a Roble, mientras que los actinomicetes y hongos no mostraron diferencias significativas entre especies. El análisis de componentes principales mostró variaciones significativas en la fisiología de las comunidades microbianas asociadas a estas dos especies. El índice de diversidad H de la microflora fue significativamente mayor para Pino. Los residuos de Roble por ser una especie latifoliada y por lo tanto poseer menor contenido de sustancias recalcitrantes que una conífera, asociado al mayor desarrollo de

  12. Temporal and altitudinal variations in benthic macroinvertebrate assemblages in an Andean river basin of Argentina

    Directory of Open Access Journals (Sweden)

    Erica E. Scheibler

    2014-02-01

    Full Text Available Environmental variables and benthic macroinvertebrate assemblages were spatially and seasonally examined over two consecutive years (2000-2002 along a glacier and snowmelt river in the central-west of Argentina where lies the highest peak in America, Mount Aconcagua (6956 m elevation. The goal was to assess seasonal and altitudinal variability in benthic community structure and to define whether physical-chemical variables affect distribution of aquatic insects. The Mendoza river basin was characterised by high variability in flow and transparency, high conductivity, hard calcium sulphate water, neutral and alkaline pH, and dominant substrate composed of small blocks, cobbles, pebbles, and sand-silt. Richness of invertebrates was low, with the lowest taxonomic richness being recorded at the mouth. The dominant group with highest taxonomic richness was Diptera, although caddisflies, mayflies, beetles, and stoneflies were present. Seasonal and spatial variations in biotic and abiotic variables were detected. Maximal densities and taxonomic richness were recorded in autumn and winter. From Modified Morisita’s Cluster analysis it was found that the system is divided into two groupings of sites related to each other by faunal composition. INDVAL revealed species turnover along the altitudinal gradient of some taxa: Andesiops, Massartellopsis, Edwarsina, Chelifera, and Ceratopogonidae had preference for the headwaters (2835-2425 m elevation, Smicridea murina and Baetodes for the lower section (1413-1085 m elevation, and Austrelmis for the middle and lower sections. The middle section (1846-1727 m elevation was a transition area where taxa from the headwaters and the lower section coexisted. Generalised Linear Models evidenced that altitude was the major factor determining macroinvertebrate assemblages along the large arid Mendoza River and that the physical-chemical variables that most influenced variation in community structure were: transparency

  13. Calculus in the Middle School?

    Science.gov (United States)

    Barger, Rita H.; McCoy, Ann C.

    2010-01-01

    This article presents an example of how middle school teachers can lay a foundation for calculus. Although many middle school activities connect directly to calculus concepts, the authors have decided to look in depth at only one: the concept of change. They will show how teachers can lead their students to see and appreciate the calculus…

  14. Aprovechamiento integral de guanacos en Península Valdés, prov. del Chubut: Estudio arqueofaunístico del sitio la Armonía (Muestreo 2

    Directory of Open Access Journals (Sweden)

    Julieta Gómez Otero

    2002-12-01

    Full Text Available Se presentan los resultados del análisis arqueofaunístico de los restos óseos de guanaco recogidos en el Muestreo 2 del sitio de superficie "La Armonía", ubicado en una hoyada entre médanos a trescientos metros del mar en la costa del golfo San Matías, Península Valdés, Argentina. El muestreo, de 4 m de lado, también aportó 891 artefactos líticos variados, tiestos y materiales faunísticos correspondientes a moluscos, peces, aves, roedores y mamíferos marinos. Los restos de guanaco fueron dominantes, alcanzando un NISP de 1.151 especímenes y una densidad de 107 especímenes/m². Un total de 555 fragmentos y astillas óseas también serían de esta especie. Se discriminó un MNI de 12 individuos: dos crías de aproximadamente dos a tres meses, nueve adultos y un senil. La edad de las crías indica ocupación en verano. Diversos análisis y controles indicaron que los restos de guanaco estarían relacionados con una misma ocupación. No se registraron suficientes evidencias como para afirmar su asociación cultural con los demás materiales faunísticos y artefactuales, aunque no se descarta esa posibilidad. Se dataron huesos de guanaco que arrojaron una edad de 460 ± 40 años 14C A.P./1305-1447 años cal A.D. (2 sigmas. Los restos de guanaco presentaron evidencias de procesamiento primario a terciario e importante proporción de marcas de carnívoros. Se propone que el muestreo representaría un área de descarte secundario o basural de una ocupación veraniega de tipo campamento-base, de varios días de duración.La Armonía Site is located in a sand dune environment 300 m from the sea on the San Matías gulf coast, Península Valdés, Argentina. In this paper we present the results of the archaeofaunal analyses of guanaco bones of the La Armonía Site Sample 2, from which 891 lithic artifacts, ceramics and faunal materials of molluscs, fish, birds, rodents, and marine mammals were also recovered. Guanaco bones dominated the faunal

  15. Tratamiento tributario actual del comercio electrónico en la República Argentina

    OpenAIRE

    Martínez Giribone, María Silvana

    2010-01-01

    Tratamiento tributario actual del comercio electrónico en la República Argentina. PROBLEMA: ¿Constituye la legislación tributaria argentina aplicada a operaciones comerciales tradicionales un marco legal acorde para gravar operaciones de comercio electrónico? OBJETIVOS DE LA INVESTIGACION OBJETIVO GENERAL Analizar la aplicación de la legislación tributaria argentina para operaciones de comercio tradicionales en el comercio electrónico. OBJETIVOS ESPECIFICOS Ana...

  16. The handling of nuclear emergencies in Argentina

    International Nuclear Information System (INIS)

    team and a decision-making team at its Headquarters, with the responsibility of conducting the whole emergency. At the same time, the ARN shall deploy a team to the emergency area, led by the Operative Head of Nuclear Emergencies Response- 'Jefe Operativo de Emergencias Nucleares (JOEN)' - who is in charge of the response at the local level (up to about ten kilometers). The JOEN is also responsible for the coordination of other organizations included in the response at the local level. This paper presents the organization of the preparation and response in case of nuclear emergencies that was developed in Argentina, considering the particular responsibilities assigned to ARN by the current legislation. In addition, three essential topics in this working scheme - the training of the members of the public, the coordination of the different organizations and the development of knowledge and skills in ARN relevant areas- are developed. (author)

  17. Bajo presión: primera relación sexual de adolescentes de Trelew (Argentina Under pressure: first sexual relation of teenagers from Trelew (Argentina

    Directory of Open Access Journals (Sweden)

    Daniel Eduardo Jones

    2010-08-01

    Full Text Available El artículo analiza las expectativas y experiencias relativas a la primera relación sexual de adolescentes, a partir de entrevistas semiestructuradas individuales a 22 varones y 22 mujeres, de entre 15 y 19 años de edad, pertenecientes a estratos socioeconómicos medios y residentes en Trelew, una ciudad de 100 mil habitantes en la Patagonia argentina. Se centra en los papeles esperados y las vivencias de presiones para la iniciación sexual. Los papeles esperados para varones y mujeres reflejan expectativas de género asimétricas y pueden favorecer acciones coercitivas por parte de parejas y amistades. Estas coerciones pueden ser interpretadas a partir del tipo de vínculo con la persona con que debutan sexualmente y la influencia de las redes de pares en tanto público interesado en dicho evento. El análisis de los testimonios tiene a la teoría de los guiones sexuales como marco de referencia, y considera las dimensiones de género y edad de las y los entrevistados.The article analyses the expectations and experiences related to the first sexual relation of teenagers. The research is based on individual semi-structured interviews with 22 men and 22 women aged from 15 to 19 , belonging to the middle class layer from Trelew, a city of 100,000 inhabitants in the Argentinean Patagonia. The article focuses on the expected roles and experiences of pressure for sexual initiation. Desired roles for girls and boys regarding their first sexual relation reflect asymmetric gender expectations and can lead to coercive actions of partners and friends. These coercions can be interpreted considering the relations with the sexual partner and the influence of teenagers' networks as a public interested in the first sexual relation. The testimonies are analyzed within a sexual scripting theory, and considering gender and age of the interviewed actors.

  18. La mortalidad por armas de fuego en Argentina entre 1990 y 2008 Firearm mortality in Argentina, 1990-2008

    Directory of Open Access Journals (Sweden)

    Marina Gabriela Zunino

    2012-04-01

    Full Text Available Este es un estudio epidemiológico descriptivo de la mortalidad por armas de fuego en Argentina, 1990-2008. Se analizaron los porcentajes y las tasas de mortalidad por armas de fuego entre las jurisdicciones del país. Los datos provienen de la Dirección de Estadística e Información en Salud, Ministerio de Salud y Ambiente, República Argentina. Entre 1990-2008 se produjeron 358.484 muertes por causas externas de las cuales el 16,6% (59.339 correspondieron a armas de fuego. La Provincia de Buenos Aires presentó el porcentaje y tasas cruda y ajustada superiores. Las jurisdicciones de la Región Pampeana (incluye Provincia de Buenos Aires presentaron un perfil más homogéneo y similar al del país: aumento de las tasas en 1999-2002 y disminución en 2003-2006. Estos hallazgos se explicarían en parte por el deterioro socioeconómico vivido en Argentina a fines del siglo XX, que habría tenido mayor impacto en Provincia de Buenos Aires, por ser ésta una de las provincias con mayor desarrollo y dinamismo económico de Argentina. La situación de Provincia de Buenos Aires habría estado agravada por el hecho de tener una de las fuerzas policiales más represivas del país.This is a descriptive epidemiological study of firearm mortality in Argentina, 1990-2008. The study compared the firearm mortality percentages and rates between the country's jurisdictions. The data are from the Office of Health Statistics and Information, Ministry of Health. From 1990 to 2008 there were 358,484 deaths from external causes, of which 16.6% (59,339 were caused by firearms. The Province of Buenos Aires showed the highest percentage and crude and adjusted rates. The jurisdictions in the Pampeana region (including the Province of Buenos Aires showed a more homogeneous profile, similar to that of the country as a whole, with an increase in the rates from 1999 to 2002 and a decrease from 2003 to 2006. These findings are partially explained by the country

  19. Discharges of radioactive materials to the environment in Argentina

    CERN Document Server

    Curti, A R

    2003-01-01

    The International Atomic Energy Agency (IAEA) is creating a database of information on radioactive discharges to atmospheric and aquatic environments from nuclear and radioactive installations, and from facilities using radionuclides in medicine, industry and research. The database is expected to facilitate the analysis of worldwide trends in discharge levels and provide a basis for assessing the impact of the discharges on humans and on the environment. In November 2002 took place the first meeting of national contact points and the Nuclear Regulatory Authority (ARN in Spanish) was present as the counterpart for the provision of discharge data from Argentina. This paper, presented in the above mentioned meeting, is a general overview of the radioactive discharges control in Argentina including the legal infrastructure, the population dose assessment methodology and the main characteristics of the facilities in the country with radioactive discharges to the environment. It is mentioned their location, release...

  20. Wind power in Argentina: Policy instruments and economic feasibility

    Energy Technology Data Exchange (ETDEWEB)

    Recalde, M. [CONICET-UNS. 12 de Octubre y San Juan, 8000 Bahia Blanca (Argentina)

    2010-06-15

    Despite its great wind endowment, Argentina has not still succeeded in increasing wind power share in its wholesale market. However, the energy supply problem that this country is facing from 2004 on seems to open an opportunity for wind energy projects. A wide range of legislation has recently emerged. In this context, this paper discusses whether policy instruments in the Argentinean regulatory frame contribute to economic feasibility for wind power projects or not. To this purpose, we study wind installed capacity, Argentinean wind potential, the different promotion tools used worldwide and those employed in Argentina. Finally, we realize a feasibility study for a typical project. We found, that in spite of its high wind potential, economic feature, related to policy instruments, have been a boundary to the development of wind energy into the energy mix. (author)

  1. El financiamiento bancario de las PYMES en Argentina (2002 - 2009)

    OpenAIRE

    Cecilia Allami; Alan Cibils

    2011-01-01

    Entre 2003 y 2007, la economía argentina experimentó una de las fases de crecimiento más intensas y extensas de las últimas décadas. En este nuevo escenario, las pequeñas y medianas empresas (PYMES) tuvieron un notable desempeño económico y recuperaron el dinamismo que habían perdido en la década anterior. No obstante, la limitación de acceso a los mercados de crédito por parte de las PYMES en Argentina es un fenómeno ampliamente reconocido, que compromete las posibilidades de crecimiento y e...

  2. Detection of Orthobunyavirus in mosquitoes collected in Argentina.

    Science.gov (United States)

    Tauro, L B; Batallan, G P; Rivarola, M E; Visintin, A; Berrón, C I; Sousa, E C; Diaz, L A; Almiron, W R; Nunes, M R; Contigiani, M S

    2015-09-01

    Bunyamwera virus (BUNV) (Bunyaviridae, genus Orthobunyavirus, serogroup Bunyamwera) is considered an emerging pathogen for humans and animals in American countries. The CbaAr-426 strain of BUNV was recovered from mosquitoes Ochlerotatus albifasciatus (Diptera: Culicidae) collected in Córdoba province (Argentina), where serological studies detected high seroprevalences in humans and animals. Molecular detection of Orthobunyavirus was performed in mosquitoes collected in Córdoba province. Seventeen mosquito pools of Oc. albifasciatus, Ochlerotatus scapularis and Culex quinquefasciatus (Diptera: Culicidae) showed positive results; four of these positive pools, all of Oc. scapularis, were sequenced. All amplicons grouped with BUNV in the Bunyamwera serogroup. The findings highlight the circulation of BUNV in Córdoba province and represent the first report of BUNV-infected Oc. scapularis mosquitoes in Argentina. PMID:25991544

  3. Sector de Agua y Saneamiento, Tarifa Social en Argentina

    OpenAIRE

    Ferro, Gustavo

    2004-01-01

    La economía argentina se halla en recesión desde la Crisis Financiera de Rusia, en 1998. El problema se agravó en el primer trimestre de 1999 con la devaluación de Brasil, el principal socio comercial de Argentina, y los cambios políticos posteriores en este país. A fines de 2001 se declaró la moratoria de la deuda y en los primeros días de 2002 se abandonó el sistema de Junta Monetaria que por once años mantuvo fijo el tipo de cambio del peso al dólar, a una tasa de 1 por 1. Desde entonces, ...

  4. LAS ESPECIES ARGENTINAS DEL GENERO SICYOS (CUCURBITACEAE.

    Directory of Open Access Journals (Sweden)

    Raúl Martínez Crovetto

    2010-11-01

    Full Text Available

    El autor estudia las especies del género Sicyos que viven dentro del territorio de la República Argentina; señalando que hasta el presente se han hallado seis. Luego de una diagnosis del género, suministra una clave, descripciones y figuras de cada una de ellas, a fin de facilitar su reconocimiento. Las especies estudiadas son S. malvifolius Griseb., S. polyacanthus Cogn., S. Odanellii Mart.-Crov., S. Kunthii Cogn. (nuevo habitante para la flora argentinaS. Warmingii Cogn, S. Warmingii Cogn. var. longispina Mart.-Crov. (nueva variedad y S. ignarus Mart.-Crov. (especie nueva para la ciencia.

  5. La Argentina, en la prensa española

    OpenAIRE

    Lic. Diana Cazaux; Lic. Marcelo Botto

    2000-01-01

    El presente trabajo denominado "La Argentina, en la prensa española" es una síntesis de los aspectos salientes de la investigación académica efectuada durante el período 1999/2000 por la licenciada en Ciencias de la Información Diana Cazaux y el licenciado en Periodismo Marcelo Botto. En la investigación académica inédita, se realizó un estudio comparativo de las notas publicadas por diarios españoles, lo que permitió arribar a las primeras conclusiones sobre el interés que genera Argentina e...

  6. CROSSROADS BETWEEN EDUCATION POLICIES AND INDIGENOUS LANGUAGES MAINTENANCE IN ARGENTINA

    OpenAIRE

    Ana Carolina Hecht

    2010-01-01

    Process of language shift is explained by many researchers since linguistic and anthropological perspectives. This area focuses on the correlations between social processes and changes in systems of use of a language. This article aims to address these issues. In particular, we analyze the links between educational-linguistic policy and the maintenance of the languages spoken in Argentina. In doing so, we explore this field taking into account the linguistic and educational policies implement...

  7. Education in Psychology in Argentina. Hugo Klappenbach’s interview

    OpenAIRE

    Corina Calabresi; Fernando Polanco

    2011-01-01

    We dialogue with Dr. Hugo Klappenbach, the well-known Latin-Americanresearcher in the field of history of psychology as well as in the field of Psychology Education. Klappenbach gives a critical overview over the teaching of psychology in Argentina. From his perspective, psychology education in the whole country has been biased almost exclusively by Psychoanalysis and by clinical interests. Klappenbach compares such psychoanalytical perspective with teaching of psychology in other countries i...

  8. Factors associated with healthcare avoidance among transgender women in Argentina

    OpenAIRE

    Socías, María Eugenia; Marshall, Brandon DL; Arístegui, Inés; Romero, Marcela; Cahn, Pedro; Kerr, Thomas; Sued, Omar

    2014-01-01

    Introduction Transgender (TG) women in many settings continue to contend with barriers to healthcare, including experiences of stigma and discrimination. Argentina has a universal health care system and laws designed to promote healthcare access among TG women. However, little is known about barriers to healthcare access among TG women in this setting. The aim of this study was to explore individual, social-structural and environmental factors associated with healthcare avoidance among TG wom...

  9. Determinants of school attendance of young people in Argentina

    OpenAIRE

    Paz, Jorge A.; Juan Carlos Cid

    2012-01-01

    This paper analyzes the socioeconomic determinants of school attendance and time allocation of young people between 15 and 18 years old in Argentina. We are particularly interested in knowing the importance of each of them. The empirical analysis is based on a multinomial logit model for the period 1997-2009 with data coming from the Permanent Household Survey, Instituto Nacional de Estadística y Censos (INDEC), covering the urban population in the country.

  10. Nuevos registros de Habrobracon hebetor (Hymenoptera: Braconidae en la Argentina

    Directory of Open Access Journals (Sweden)

    Juan José MARTÍNEZ

    2009-01-01

    Full Text Available Se proveen nuevos registros de Habrobracon hebetor (Say de Choele Choel, Río Negro, y de la Ciudad Autónoma de Buenos Aires, Argentina. Parte de los ejemplares analizados fueron criados a partir de larvas de Plodia interpunctella (Hübner (Lepidoptera: Pyralidae sobre nueces almacenadas. Adicionalmente se provee una diagnosis ilustrada de la única especie de Habrobracon presente en el país.

  11. Practice and Membership: Reasons for Partisan Affiliation in Cordoba, Argentina

    OpenAIRE

    Hugo H. RABBIA; Silvina Brussino

    2012-01-01

    We analyze the individual motives of political party affiliation as a central variable that help us to characterize the party affiliation as a practice and as belonging to a party organization. The study was conducted through questionnaires, and the sample was integrated by 428 citizens over 18 and under 65 years old, from Cordoba, Argentina. We propose a categorization of the motives of affiliation, inductively constructed, that recovers the theoretical conceptualization from the sociology o...

  12. Development of TLD audits for radiotherapy dosimetry in Argentina

    International Nuclear Information System (INIS)

    Since 1978 the Regional Reference Center for Dosimetry in Argentina (Secondary Standard Dosimetry Laboratory belonging to the IAEA-WHO SSDLs Network) has been performing a dose intercomparison programme for cobalt 60 therapy units operating in the country. Applied methodology was similar to that of the IAEA TLD audit service and the dose at a reference point on the radiation beam axis was checked by this programme. The results of this audits showed that dose deviations obtained were within the acceptance limits

  13. Comparing stabilization plans of Argentina, Brazil and Peru

    OpenAIRE

    Arellano, José Pablo

    2015-01-01

    ​This paper sets out to identify the main differences and simmilarities between the Stabilization Plans of Argentina, Brazil, and Perú, as well as making some remarks on anti-inflationary policies. The author also analyzes the initial success of these programmes in terms of their handling of inflation and its subsequent regression. It concludes that the greatest and most important potential cost of a stabilization programme can be measured in terms of its impact on the economic activity, and ...

  14. Pyricularia oryzae en cultivos de cebada en Corrientes (Argentina

    Directory of Open Access Journals (Sweden)

    Susana Alejandra Gutiérrez

    2015-12-01

    Full Text Available RESUMENDurante la campaña 2012-2013, en cultivos de cebada forrajera (Hordeumvulgare var. Alicia INTA, se observaron síntomas de tizón foliar. El agente causal (Pyricularia oryzae fue identificado según características morfométricas, culturales y de patogenicidad. Constituye ésta la primera información del patógeno para cultivos de cebada forrajera en Argentina.

  15. Determinants of school attendance of young people in Argentina

    Directory of Open Access Journals (Sweden)

    Jorge A. Paz

    2012-05-01

    Full Text Available This paper analyzes the socioeconomic determinants of school attendance and time allocation of young people between 15 and 18 years old in Argentina. We are particularly interested in knowing the importance of each of them. The empirical analysis is based on a multinomial logit model for the period 1997-2009 with data coming from the Permanent Household Survey, Instituto Nacional de Estadística y Censos (INDEC, covering the urban population in the country.

  16. Costs of publicly provided maternity services in Rosario, Argentina

    OpenAIRE

    Borghi Josephine; Bastus Silvia; Belizan María; Carroli Guillermo; Hutton Guy; Fox-Rushby Julia

    2003-01-01

    This material is posted here with permission of the publishers, Instituto Nacional de Salud Pública. Internal or personal use of this material is permitted. However, permission to reprint/republish this material must be obtained from the Publisher. Objective. This study estimates the costs of maternal health services in Rosario, Argentina. Material and Methods. The rovider costs (US$ 1999) of antenatal care, a normal vaginal delivery and a caesarean section, were evaluated retrospectively ...

  17. The limits to dollarization in Ecuador: Lessons from Argentina

    OpenAIRE

    Matias Vernengo; Mathew Bradbury

    2008-01-01

    The paper sheds light on the apparent success of dollarization in Ecuador. The experience of Argentina with convertibility is used to anchor the analysis. Two key factors are seen to play the most important role; first, the behavior of the real exchange rate and second, the source of external resources. The papers explains that exogenous determinants of the real exchange rate- productivity growth, the value of the dollar, commodity prices- have tended to behave very differently over the respe...

  18. Las Lejeuneaceae (Hepaticae) de Misiones, Argentina : 6., Lejeunea y Taxilejeunea

    OpenAIRE

    Reiner-Drehwald, M. Elena

    2000-01-01

    Se describen e ilustran las 15 especies de Lejeunea y 3 especies de Taxilejeunea (Lejeuneaceae, subfam. Lejeuneoideae) halladas en Misiones, Argentina: Lejeunea cancellata Nees & Mont., L. filipes Spruce, L. flava (Sw.) Nees, L. geophila Spruce, L. grossitexta (Steph.) E.Reiner & Goda, L. laetevirens Nees & Mont., L. lepida Lindenb. & Gottsche, L. monimiae (Steph.) Steph., L. phyllobola Nees & Mont., L. ptosimophylla C.Massal., L. puiggariana Steph., L. quinqueumbonata Spruce, L. setiloba Spr...

  19. Las Iglesias Cristianas Reformadas en Argentina: una historia reciente

    OpenAIRE

    Lértora-Mendoza, C.A. (Celina A.)

    2015-01-01

    The history of evangelical Christianity in Argentina is as old as the country itself. Several Reformed communities settled in Buenos Aires and various cities and towns of the interior; this history, recorded through numerous studies, shows different views and facets of the complex and nuanced historical reality. Concerning recent decades, several historiographical problems mentioned in the introduction can be perceived. The work is divided into the following parts. First, the history of ev...

  20. Close encounters Brazil and Argentina: Adhemar Gonzaga in Buenos Aires

    Directory of Open Access Journals (Sweden)

    Arthur Autran

    2013-12-01

    Full Text Available This paper focuses on the relations between the cinematography of Argentina and the cinematography of Brazil in the 1930s and 1940s, with the central axis Adhemar Gonzaga’s visit to Buenos Aires in 1934 and the contacts established there. The paper also discusses the tour of Hollywood star Ramón Novarro in South America, one of the motivations of the trip of Gonzaga.

  1. Accounting Books of Argentina: Publications, Research and Institutional Background.

    OpenAIRE

    Wirth, María Cristina; Mattessich, Richard

    2006-01-01

    La literatura contable en lengua inglesa ofrece relativamente poca información sobre las investigaciones y publicaciones realizadas en Latinoamérica, tanto en el pasado como en la actualidad. Con el objetivo de contribuir a cerrar la brecha, hemos investigado esta temática en la Argentina. The English accounting literature offers relatively little insight into past and current research and publication efforts in Latin America. In trying to fill some of this gap we investigated this issue from...

  2. Gender stereotypes in products advertising targeted to children in Argentina

    OpenAIRE

    Melo, Andrea Natalia; Astorino, Julieta

    2016-01-01

    Objective: to characterize the construction, reproduction and re-elaboration ofgender stereotypes in audiovisual and print advertising seen in Argentina between 2011 and 2014. This advertising refered to products consumed by children as an expression of symbolic violence against women, according to the definition established by Law 26485.Methodology: a document analysis within a qualitative methodology approach was used. A convenience sampling from Google, Facebook and Youtube was studied to ...

  3. Estrategias habitacionales de familias de sectores populares y medios residentes en el área metropolitana de Buenos Aires (Argentina

    Directory of Open Access Journals (Sweden)

    María Mercedes di Virgilio

    2012-12-01

    Full Text Available This article analyzes the various ways in which families face difficult habitat access conditions in the post-Fordist city. In order to do this, we have comparatively explored the housing strategies implemented by popular and middle class families residing in the Buenos Aires metropolitan area (Argentina. We have chosen popular and middle class families as a response to our interest in analyzing the effects that position in the class structure has on the actions carried out by families for their reproduction. From this point of view, the logic, the decisions, and the goals that lead to access to habitat and to the resources that are mobilized, vary according to the position that families occupy in the class structure. In this article, we advance in the analysis of housing strategies, emphasizing the differences and similarities that are observed among social groups that occupy differential positions in this structure but live in nearby locations in the city, and among social groups occupying similar positions in production and consumption but who reside in different areas and/or locations of the urban space.

  4. The effects of information, social and financial incentives on voluntary undirected blood donations: evidence from a field experiment in Argentina.

    Science.gov (United States)

    Iajya, Victor; Lacetera, Nicola; Macis, Mario; Slonim, Robert

    2013-12-01

    In many low- and middle-income countries blood donations per capita are substantially lower than in advanced economies. In these countries blood supply is mostly collected through directed donations from relatives and friends to individuals needing transfusions or to replace blood used in emergencies. The World Health Organization considers this method of blood supply inefficient compared to undirected voluntary donations. To examine methods to motivate undirected voluntary donations, we ran a large-scale, natural field experiment in Argentina, testing the effectiveness of information, social and financial incentives. We find that only higher-valued financial incentives generated more donations, increasing with the value of the reward. These incentives did not create adverse selection in the safety or usability of the donated blood. We discuss the implications of our findings for researchers interested in understanding motivations for pro-social behavior and for health agencies and policymakers concerned with the current and growing shortages in blood supply in low- and middle-income countries.

  5. Communication of 15 February 1995 received from the Permanent Mission of Argentina to the International Atomic Energy Agency

    International Nuclear Information System (INIS)

    The Director General has received a letter of 15 February 1995 from the Permanent Mission of Argentina concerning the deposit by Argentina of its instrument of ratification of the Treaty on the Non-Proliferation of Nuclear Weapons

  6. Family Dynamics and Personal Strengths among Dementia Caregivers in Argentina

    Science.gov (United States)

    Elnasseh, Aaliah G.; Trujillo, Michael A.; Peralta, Silvina Victoria; Stolfi, Miriam E.; Morelli, Eliana; Perrin, Paul B.

    2016-01-01

    This study examined whether healthier family dynamics were associated with higher personal strengths of resilience, sense of coherence, and optimism among dementia caregivers in Argentina. Caregivers are usually required to assist individuals with dementia, and family members have typically fulfilled that role. Personal strengths such as resilience, sense of coherence, and optimism have been shown to protect caregivers from some of the negative experiences of providing care, though the family-related variables associated with these personal strengths are largely unknown. Hierarchical multiple regressions investigated the extent to which family dynamics variables are associated with each of the caregiver personal strengths after controlling for demographic and caregiver characteristics. A sample of 105 caregivers from Argentina completed a set of questionnaires during a neurologist visit. Family dynamics explained 32% of the variance in resilience and 39% of the variance in sense of coherence. Greater family empathy and decreased family problems were uniquely associated with higher resilience. Greater communication and decreased family problems were uniquely associated with higher sense of coherence. Optimism was not found to be significantly associated with family dynamics. These results suggest that caregiver intervention research focused on the family may help improve caregiver personal strengths in Argentina and other Latin American countries. PMID:27413574

  7. Nuclear rapprochement in Argentina and Brazil: Workshop summary

    Energy Technology Data Exchange (ETDEWEB)

    James E. Doyle

    1999-10-01

    On October 21 and 22, 1998, the Center for International Security Affairs at Los Alamos National Laboratory and the Center for Global Security and Cooperation at Science Applications International Corporation hosted the first of a series of work-shops on states that have chosen to roll back their pursuit of nuclear arms. The objective of the workshop series is to conduct a systematic evaluation of the roles played by U.S. nonproliferation policy in cases of nuclear rollback or restraint and to provide recommendations for future nonproliferation efforts based on lessons learned. Key attendees at the workshop included officials and former officials from the foreign ministries of Argentina and Brazil, and current and former officials from the U.S. Department of State, the Arms Control and Disarmament Agency (ACDA), and the Department of Energy (DOE). Scholars and independent researchers who have examined nuclear policy in Argentina and Brazil also participated. This workshop report includes important background information that helps set the stage for assessing nuclear policies in Argentina and Brazil. It describes national perspectives and areas of consensus and debate among the participants, particularly on the questions of lessons learned and their salience to proliferation challenges in other states. It also summarizes key questions and propositions regarding the roles played in these cases by U.S. nonproliferation policy.

  8. A rivalidade Brasil-Argentina e a Guerra Fria

    Directory of Open Access Journals (Sweden)

    Carlos Eduardo Vidigal

    2014-12-01

    Full Text Available Peronismo e anti-peronismo definiram o padrão da rivalidade Brasil-Argentina no contexto do início da guerra fria. Inúmeros documentos diplomáticos brasileiros – ofícios, despachos, memorandos, telegramas – datados dos anos de 1946 a 1948 apresentavam em seus títulos temas como “infiltração argentina no Sul do Brasil”, “expansionismo político da Argentina”, “política expansionista da Argentina”, etc. Pode-se afirmar que o anti-peronismo consolidou-se em setores dirigentes do país, por meio de uma política que ultrapassava, de algum modo, o próprio peronismo. Por exemplo, a ideia de que a Argentina procurava expandir sua área de influência na América do Sul remonta, pelo menos ao período anterior a segunda grande guerra. Assim, a identificação da forma como se construiu o anti-peronismo no Brasil permite avaliar mais especificamente que interesses e quais setores alimentaram visões contrárias ao diálogo bilateral.

  9. Argentina y su desarrollo posterior a la crisis financiera

    Directory of Open Access Journals (Sweden)

    Mine Aysen Doyran

    2015-01-01

    Full Text Available En este artículo se revisan las características de la recuperación económica argentina después de la crisis financiera de 1999-2001 hasta la actualidad. Se revisan las alternativas de desarrollo de las presidencias de Duhalde y Kirchner respecto a la de Menem, a través de la literatura publicada sobre Argentina durante ese periodo. Este artículo sostiene que el kirchnerismo no es un modo coherente de gobierno que haya roto con el neoliberalismo, como suele indicarse en la literatura académica, sino más bien, un acto de equilibrio entre los intereses económicos soberanos de las corporaciones argentinas y las demandas del sistema financiero internacional que las economías semiperiféricas confrontan en la red de integración global. El kirchnerismo manifiesta las contradiccio - nes de una economía dependiente con antecedentes de inestabilidad.

  10. Argentina: Brief Overview of Argentina’s INIS Activities

    International Nuclear Information System (INIS)

    Argentina works in close collaboration with the IAEA on its technical cooperation program, both on national projects within their national program plan, including its thematic areas, as well as on regional projects through the ARCAL agreement. In the field of horizontal cooperation, Argentina engages in technology transfer, training fellows and receiving scientific visits. Argentina has been a member of the International Nuclear Information System (INIS) since 1970, and was among the first IAEA Member States to agree to participate in the system. As a member, we have been involved in the various activities carried out by the IAEA, disseminating the research and development of our researchers and scientists in nuclear and related subjects and promoting INIS activities. The National Atomic Energy Commission (CNEA) is the INIS National Center. Contributions to the INIS database nationwide are made through the CNEA's Information Centers: Eduardo Savino Information Center (CIES, Constituyentes Atomic Center), Leo Falicov Library (Bariloche Atomic Center) and the Library of the Nuclear Regulatory Authority (ARN)

  11. El financiamiento bancario de las PYMES en Argentina (2002 - 2009

    Directory of Open Access Journals (Sweden)

    Cecilia Allami

    2011-01-01

    Full Text Available Entre 2003 y 2007, la economía argentina experimentó una de las fases de crecimiento más intensas y extensas de las últimas décadas. En este nuevo escenario, las pequeñas y medianas empresas (PYMES tuvieron un notable desempeño económico y recuperaron el dinamismo que habían perdido en la década anterior. No obstante, la limitación de acceso a los mercados de crédito por parte de las PYMES en Argentina es un fenómeno ampliamente reconocido, que compromete las posibilidades de crecimiento y expansión de estas empresas. Este trabajo analiza el crédito bancario efectivamente otorgado a las PYMES en el periodo 2002-2009 en Argentina. Se concluye la necesidad de intervención y regulación del Estado argentino en el mercado bancario, así como la redefinición de las políticas de crédito de entidades públicas y otras políticas focalizadas para mejorar el financiamiento de estas empresas.

  12. Insights into Pleistocene palaeoenvironments and biostratigraphy in southern Buenos Aires province (Argentina) from continental deposits

    Science.gov (United States)

    Beilinson, E.; Gasparini, G. M.; Soibelzon, L. H.; Soibelzon, E.

    2015-07-01

    The coastal cliffs of the Buenos Aires province (Argentina) have been the subject of intense paleontological studies since the XIX century. Therefore, many of the type localities in which is based the late Cenozoic Pampean biostratigraphic/chronostratigraphic scheme are located in this area. In this context, the sedimentites that crop out near the mouth of the Chocorí Creek contain a set of palaeontological sites that, because of their richness and well-preserved fossil content, hold high national and international importance. The aims of the present contribution are: 1) to make a stratigraphic and sedimentological characterization of the study area; 2) to list the fauna outcropped at these palaeontological sites and establish a biostratigraphic framework; 3) to elaborate a palaeoenvironmental model for the area. The study interval was informally subdivided into a lower, middle and upper interval. Interpretation was based on the presence of a number of key features such as architectural elements; channel:overbank ratio and palaeosol occurrence. The first two intervals were interpreted as continental deposits of a fluvio-alluvial nature and are the focus of this paper. The upper interval was related to foreshore marine deposits and will be studied in a future contribution. The lower interval is characterized mainly by overbank architectural elements in which calcisols and argillic protosols were identified. Channel-fill deposits are isolated and surrounded by fine-grained overbank successions and sedimentary structures are suggestive of mixed-load transport. The contact between the lower and middle intervals is an irregular, highly erosive surface characterized by a significant vertical change in the facies. This surface defines the base of multistorey sandbodies which's internal arrangement alongside with the low participation of overbank deposits suggests deposition by a braided fluvial system. Palaeosols and vertebrate fossils were used as palaeoclimatic

  13. Crafts in the Middle Years

    Science.gov (United States)

    Porter, D. I. R.

    1972-01-01

    In the middle years of schooling, size, measurement, shape and form build up a child's mathematical and visual concepts. A restless drive to create, to see what happens in making something, can provide the driving force in crafts. (Editor)

  14. Peronism and the origin of workers in Argentina Peronismo e oriegem dos operários na Argentina

    Directory of Open Access Journals (Sweden)

    Carlos R. Etulain

    2007-05-01

    Full Text Available This article analyses the way the workers and popular fronts inserted themselves in the Peronism when it appeared in the 40’s, in Argentina. Showing the adhesion of the different sectors of Argentinean workers, it presents the researchers opinion on the subject. The historical period focuses the first and the second period of Peron as president (1946-1955. Keywords: Peronism. Left. Workers. Unionism. Populism. New Workers. O trabalho analisa a forma como os trabalhadores e os setores populares se inseriram no peronismo uma vez do seu surgimento, nos anos 40, na Argentina. Apontando para a adesão dos diferentes setores de trabalhadores argentinos, o artigo apresenta as posições dos investigadores do assunto. O período histórico se centra na primeira e segunda presidência de Perón (1946-1955. Palavras-chave: Peronismo. Esquerda. Trabalhadores. Sindicalismo. Populismo. Trabalhadores Novos.

  15. Nuevos registros de Habrobracon hebetor (Hymenoptera: Braconidae en la Argentina New records of Habrobracon hebetor (Hymenoptera: Braconidae in Argentina

    Directory of Open Access Journals (Sweden)

    Juan José Martínez

    2009-12-01

    Full Text Available Se proveen nuevos registros de Habrobracon hebetor (Say de Choele Choel, Río Negro, y de la Ciudad Autónoma de Buenos Aires, Argentina. Parte de los ejemplares analizados fueron criados a partir de larvas de Plodia interpunctella (Hübner (Lepidoptera: Pyralidae sobre nueces almacenadas. Adicionalmente se provee una diagnosis ilustrada de la única especie de Habrobracon presente en el país.New records of Habrobracon hebetor (Say are reported from Choele Choel, Río Negro and Ciudad Autónoma de Buenos Aires, Argentina. Some of the specimens examined were reared from larvae of Plodia interpunctella (Hübner (Lepidoptera: Pyralidae on stored nuts. Additionally, an illustrated diagnosis of Habrobracon hebetor is provided.

  16. La Argentina y el Plan Marshall: promesas y realidades Argentina and the Marshall Plan: promises and realities

    Directory of Open Access Journals (Sweden)

    Mario Rapoport

    2009-06-01

    Full Text Available El artículo analiza los intereses y prioridades de la política económica externa de los Estados Unidos y las complejas relaciones entre Washington y el gobierno de Buenos Aires en relación a la puesta en marcha del Plan Marshall de reconstrucción de Europa Occidental. La no participación de la Argentina en él dificultó su proceso de industrialización al restringir su comercio con el viejo continente e impedirle obtener las divisas necesarias para comprar en los EEUU, proveedor fundamental de los bienes que necesitaba.The article analyze both the interests and priorities of the foreign economic policy of the United States and the complex relationship between Washington and the peronist government when President Truman impose the Marshall Plan in Europe making more difficult the industrialisation of Argentina.

  17. The Middle Pivot Element Algorithm

    OpenAIRE

    Anchala Kumari; Soubhik Chakraborty

    2012-01-01

    This paper is an improvement over the previous work on New Sorting Algorithm first proposed by Sundararajan and Chakraborty (2007). Here we have taken the pivot element as the middle element of the array. We call this improved version Middle Pivot Element Algorithm (MPA) and it is found that MPA is much faster than the two algorithms RPA (Random Pivot element Algorithm) and FPA (First Pivot element Algorithm) in which the pivot element was selected either randomly or as the first element, res...

  18. Middle Eastern Christians in Europe

    DEFF Research Database (Denmark)

    Sparre, Sara Cathrine Lei; Hunter, Alistair; Jørgensen, Anne Rosenlund;

    This booklet, published in English, Danish, Swedish and Arabic, has the aim to present overall findings of the research project Defining and Identifying Middle Eastern Christians in Europe (DIMECCE) to a broader audience.......This booklet, published in English, Danish, Swedish and Arabic, has the aim to present overall findings of the research project Defining and Identifying Middle Eastern Christians in Europe (DIMECCE) to a broader audience....

  19. Retaining Middle Managers in China

    OpenAIRE

    Li, Bo

    2008-01-01

    Extensive media reports and recent studies have aroused the retention of talented managers as the biggest management challenge for foreign firms in China. Bearing the highest turnover rate, middle managers are considered to be the most demanding group on the labor market. The purpose of this thesis is to get a better understanding of the measures foreign companies in China are taking to retain employees and the impact of them in the retention of middle managers. Case studies are conduct...

  20. Literatura argentina e infancia: un caleidoscopio de poéticas : II Jornadas Poéticas de la Literatura Argentina para Niños

    OpenAIRE

    Blake, Cristina Elsa; Sardi, Valeria

    2010-01-01

    Nos hemos propuesto publicar las ponencias seleccionadas para ser leídas en las II Jornadas de Poéticas de la Literatura argentina para niños que tuvieron lugar en el Colegio Nacional “Rafael Henández” de la ciudad de La Plata, el 5 de noviembre de 2010 con el fin de poner en circulación la producción teórico-crítica de colegas argentinos interesados en el campo de la literatura infantil argentina. Cabe compartir con ustedes: ¿por qué nos interesa abordar la literatura argentina para niños...

  1. Vacuna contra la fiebre hemorrágica argentina Candid#1 producida en la Argentina: Inmunogenicidad y seguridad

    Directory of Open Access Journals (Sweden)

    Delia A. Enria

    2010-06-01

    Full Text Available Se realizó un estudio clínico en 946 voluntarios humanos sanos, donde se comparó la vacuna Candid#1 producida en Argentina con la elaborada en EE.UU., que había sido utilizada en estudios previos. Como objetivo primario se evaluó la equivalencia en la eficacia utilizando como marcador subrogante a la inmunogenicidad medida por detección de anticuerpos neutralizantes. Como objetivo secundario se evaluó la equivalencia en inocuidad comparando las tasas de reacciones adversas. Ambas vacunas mostraron una tasa equivalente de inmunogenicidad ligeramente superior al 95.5%, que es la eficacia estimada para Candid #1 en estudios previos. No se observaron eventos adversos graves relacionados con la vacuna. Los eventos adversos generales considerados relacionados fueron de escasa significación clínica y de resolución espontánea o con tratamiento sintomático; se presentaron en los receptores de ambas vacunas en tasas equivalentes (29.9% para la vacuna fabricada en la Argentina y 35.0% para la fabricada en EE.UU., e incluyeron: cefalea, decaimiento, mialgias, plaquetopenia leve (< 150 000 plaquetas/mm³, náuseas y/o vómitos, leucopenia leve (< 4 000 blancos/mm³, fiebre, dolor retroocular, mareos, microhematuria, lumbalgia y exantema. Estos resultados indican que la vacuna Candid #1 elaborada en la Argentina es equivalente a la elaborada en los EE.UU. Este estudio permitió el registro del biológico producido en la Argentina ante la autoridad regulatoria del país (ANMAT.

  2. Rational use of energy and cogeneration in Argentina; Uso racional de la energia y la cogeneracion en Argentina

    Energy Technology Data Exchange (ETDEWEB)

    Sosa, M.I. [Universidad Nacional de La Plata (GECCU/UNLP), Buenos Aires (Argentina). Fac. de Ingenieria. Sistemas de Generacion de Energia, Cogeneracion, Ciclos Combinados, Uso Racional de la Energia], E-mail: misosa@ing.unlp.edu.ar

    2009-07-01

    In this paper we discuss the energy situation in Argentina and indicates possibilities for the implementation of cogeneration projects in the industrial sector, which would include energy generated by a centralized system, without additional consumption of primary resources. We discuss the physical potential of cogeneration and regulatory barriers that do not assist in its implementation. Mentioned government measures on rational and efficient use of energy.

  3. Costs of publicly provided maternity services in Rosario, Argentina Los costos de servicios maternos públicos en Rosario, Argentina

    OpenAIRE

    Josephine Borghi; Silvia Bastus; María Belizan; Guillermo Carroli; Guy Hutton; Julia Fox-Rushby

    2003-01-01

    OBJECTIVE: This study estimates the costs of maternal health services in Rosario, Argentina. MATERIAL AND METHODS: The provider costs (US$ 1999) of antenatal care, a normal vaginal delivery and a caesarean section, were evaluated retrospectively in two municipal hospitals. The cost of an antenatal visit was evaluated in two health centres and the patient costs associated with the visit were evaluated in a hospital and a health centre. RESULTS: The average cost per hospital day is $114.62. The...

  4. Una especie nueva de Trechisibus de la Argentina (Coleoptera: Carabidae A new species of Trechisibus from Argentina (Coleoptera: Carabidae

    Directory of Open Access Journals (Sweden)

    Sergio Roig-Juñent

    2005-12-01

    Full Text Available RESUMEN. Las Trechini constituyen una tribu de Carabidae distribuida ampliamente en la región Andino Patagónica. A pesar de que existen varias revisiones parciales de esta tribu para la Argentina y Chile, es muy común hallar especies nuevas, debido sobre todo a la prospección de áreas no exploradas. En este aporte se describe una especie nueva del género Trechisibus Jeannel del Cerro Nevado (Mendoza, Argentina. Por sus características morfológicas pertenece al grupo de especies depressus. Se describe e ilustra el adulto de esta especie nueva, se provee una clave para la identificación de las especies del grupo depressus y se discuten algunos aspectos de la distribución de estas especies.ABSTRACT. Trechini is a tribe of Carabidae (Coleoptera widely distributed in the Andean Patagonian region in South America. In spite of several partial revisions of the tribe for Argentina and Chile, it is very common to find new species due to the research of unexplored areas. In the present paper, a new species of the genus Trechisibus Jeannel from the Cerro Nevado (Mendoza, Argentina is described. Based on its morphological features the new species is considered as a member of the depressus group. The adult of the new species is described and illustrated, a key for the identification of the species of the depressus group is provided, and some aspects of the distribution of the group are discussed.

  5. Aphididae (Hemiptera) on ornamental plants in Córdoba (Argentina) Aphididae (Hemiptera) en plantas ornamentales de Córdoba (Argentina)

    OpenAIRE

    Alfonsina Szpeiner

    2008-01-01

    In 30 surveys across Cordoba city and surroundings (Argentina) I recorded, from November 2001 to May 2002, a total of 109 ornamental plants infested with aphid colonies. Surveys were conducted in the local botanical garden as well as homestead gardens and nurseries. Seventeen species of aphids were identified, 4 of which are new species in the area, from 47 ornamental plants. In a total of 59 plant/aphid associations, 38 new associations were found. I present the first record of aphids coloni...

  6. Estrategias de prevención de dengue: Rosario, Argentina Dengue prevention strategies: Rosario, Argentina

    Directory of Open Access Journals (Sweden)

    Monica Liborio

    2004-09-01

    Full Text Available A pesar de la presencia de Aëdes aegypti en el municipio de Rosario -República Argentina - no se han notificado casos de Dengue autóctono. Esta condición y otras características, que convierten a la ciudad vulnerable para el desarrollo de la enfermedad, brindan, en contrapartida la posibilidad de intervenir para prevenirla, como pocas veces ofrecen los problemas de salud comunitaria. El Sistema Municipal de Epidemiología definió en el marco de un proceso intersectorial y coparticipativo entre Estado y Comunidad, acciones de promoción y prevención dirigidas a lograr la cooperación efectiva de la población en la eliminación de criaderos potenciales del vector. Se inició así en el año 2000, un proceso, con diversos grados de intervención estatal, centrando el trabajo en la acción de promotores domiciliarios, que acercaron conocimientos a los ciudadanos sobre el Dengue y su vector transmisor. Se recabó, además información para evaluar el riesgo asociado a la presencia de criaderos. La actividad se extendió a establecimientos educacionales y organizaciones barriales. Se promovieron, también, actividades intersectoriales concretas de limpieza y ordenamiento ambiental. La evaluación de dichas intervenciones, permitió verificar el perfeccionamiento de los conocimientos de la población mediante la promoción personalizada y posibilitó apreciar que se lograron mejores resultados con la incorporación de las escuelas y con las intervenciones realizadas con amplia participación estatal. Este trabajo puso en evidencia la necesidad del rol del Estado como incentivador y organizador de actividades para modificar actitudes e incorporar comportamientos responsables y solidarios de los ciudadanos, que aporten a las estrategias saludables.In spite of the presence of the Aëdes aegypti in the city of Rosario -Argentina- there is no evidence of reports of autochthonous Dengue. This condition and other characteristics that make the city a

  7. 77 FR 39257 - Honey From Argentina and China Institution of Five-Year Reviews Concerning the Countervailing...

    Science.gov (United States)

    2012-07-02

    ... order on imports of honey from Argentina (66 FR 63673) and antidumping duty orders on imports of honey... honey from Argentina and the antidumping duty orders on honey from Argentina and China (72 FR 42384..., and F (19 CFR part 207), as most recently amended at 74 FR 2847 (January 16, 2009). \\1\\ No response...

  8. 77 FR 28570 - Honey From Argentina: Extension of Time Limit for the Final Results of Antidumping Duty...

    Science.gov (United States)

    2012-05-15

    ... period of review (POR) of honey from Argentina. See Honey From Argentina: Preliminary Results of Antidumping Duty Administrative Review and Partial Rescission of Antidumping Duty Administrative Review, 77 FR... International Trade Administration Honey From Argentina: Extension of Time Limit for the Final Results...

  9. 76 FR 44305 - Honey From Argentina: Extension of Time Limit for Preliminary Results of Antidumping Duty New...

    Science.gov (United States)

    2011-07-25

    .... (Villamora). See Honey from Argentina: Notice of Initiation of Antidumping Duty New Shipper Review, 76 FR... International Trade Administration Honey From Argentina: Extension of Time Limit for Preliminary Results of... initiation a new shipper review of the antidumping duty order on honey from Argentina, covering the period...

  10. ASENTAMIENTOS PREHISPÁNICOS Y PUEBLOS DE INDIOS COLONIALES SOBRE EL RÍO SALADO (SANTIAGO DEL ESTERO, ARGENTINA.MIRADAS DIALOGADAS ENTRE LA ARQUEOLOGÍA Y LA HISTORIA

    Directory of Open Access Journals (Sweden)

    Constanza Taboada

    2013-12-01

    Full Text Available This article focuses on the indigenous societies that once habited the southern region of the middle Salado River (Santiago del Estero, Argentina during the Spanish conquest. Thought as an interdisciplinary effort, its purpose is to interpret the information we have about the area through questions and data introduced by the archeologist, exploring some hypothesis. Among them is the possible relation between the archeological areas and the colonial ‘provinces’ in the Salado, the organization of an indigenous rebellion against the Spanish ‘conquistadores’ in the Bañados de Añatuya and the existence of a not necessarily conflicting frontier with the inhabitants of Chaco

  11. “Vistiendo las ropas del santo”: Atributos afro en la personalidad de san Baltasar a través de algunos cargos devocionales en su culto en la Argentina

    OpenAIRE

    Norberto Pablo Cirio

    2003-01-01

    Through its history, one can see traces of African roots in the popular cult of San Baltazar in Argentina. In spite of starting as an imposed devotion by the clergy and the Spanish Crown to the slaves in the middle of 18th Century, early the later could insert their own cultural traditions, producing a sort of sui generis syncretism.Now days, those traditions are present in some religious ceremonies, especially in the devotional area. So far they consider that he is the patron saint of the jo...

  12. Inflación + desarrollo : La inflación argentina: un enfoque estructural

    OpenAIRE

    Giacobone, Gabriel; Selva, Rafael A.

    2011-01-01

    Argentina atraviesa un proceso inflacionario de carácter estructural. Esto plantea dos fuertes definiciones: por un lado, el reconocimiento de un proceso de suba generalizada de precios que tiene lugar en Argentina y, por el otro, el de su caracterización como un proceso inseparable del esquema de desarrollo.

  13. Especies del género Tamarix (Tamaricaceae) invadiendo ambientes naturales y seminaturales en Argentina

    Science.gov (United States)

    Tamarix species (Tamaricaceae) invading natural and seminatural habitats in Argentina. The genus Tamarix includes species behaving as aggressive invaders in the USA, México and Australia. Previous studies report a variable number of species of this genus cultivated in Argentina as ornamentals,wind-b...

  14. Analysis of seed and ware potato production systems and yield constraints in Argentina

    NARCIS (Netherlands)

    Caldiz, D.O.

    2000-01-01

    The aim of this thesis is to analyze the seed and ware potato production systems in Argentina and their possible yield constraints in order to develop specific strategies to increase seed quality and tuber yield.This thesis starts with a survey of the actual potato production systems in Argentina ca

  15. The Influence of Positivism in the Nineteenth Century Astronomy in Argentina

    Science.gov (United States)

    Santilli, Haydee; Cornejo, Jorge Norberto

    2013-01-01

    In this paper we analyze the influence of positivism in Argentina astronomical culture in the nineteenth century. We did the analysis from two dimensions, scientific knowledge development and science teaching. Because Argentina was a very young country at that time, it was of singular importance, not only the development of scientific knowledge…

  16. Research on English Language Teaching and Learning in Argentina (2007-2013)

    Science.gov (United States)

    Porto, Melina; Montemayor-Borsinger, Ann; López-Barrios, Mario

    2016-01-01

    In this article we review research on English as a foreign language (EFL) teaching and learning published in Argentina between 2007 and 2013. This is the first review of a Latin American country in this series. Argentina has a century-long tradition of training EFL teachers but a comparatively shorter though fruitful history of foreign language…

  17. Discourses and Policies on Educational Quality in Argentina, 1990-2010

    Science.gov (United States)

    Gorostiaga, Jorge M.; Ferreira, Adrian

    2012-01-01

    This article analyses the relationships between different notions of education quality and policies on primary and secondary schools implemented in Argentina during the last two decades. The authors focus on three moments: (1) the emergence of the discussion about quality (at the end of the 1980s) in Latin America and in Argentina; (2) the…

  18. The Politics of Access to Higher Education in Argentina and Brazil: A Comparative Analysis

    Science.gov (United States)

    Fernandes Nogueira, Jaana Flavia

    2013-01-01

    Historically, higher education has played an important role in the development of societies. Indeed, this has been the case in both Argentina and Brazil. The overall goal of this dissertation is to examine the historical development and the current situation of higher education in Argentina and Brazil. In relation to history, it discusses the…

  19. 77 FR 60105 - Honey From Argentina: Notice of Initiation of Antidumping and Countervailing Duty Changed...

    Science.gov (United States)

    2012-10-02

    ... Argentina, 66 FR 63672 (December 10, 2001) (AD Order). See also Notice of Countervailing Duty Order: Honey from Argentina, 66 FR 63673 (December 10, 2001) (CVD Order), (collectively, Orders). \\2\\ See Letter... Not to Revoke, In Part, 73 FR 60241, 60242 (October 10, 2008), unchanged in Certain Orange Juice...

  20. 76 FR 5332 - Honey From Argentina: Notice of Initiation of Antidumping Duty New Shipper Review

    Science.gov (United States)

    2011-01-31

    .... See Order, 66 FR at 63672. Thus, the antidumping duty order on honey from Argentina has a December... FR 63672 (December 10, 2001) (Order). In accordance with section 751(a)(2)(B) of the Tariff Act of... International Trade Administration Honey From Argentina: Notice of Initiation of Antidumping Duty New...

  1. 77 FR 4763 - Honey From Argentina: Notice of Initiation of Antidumping Duty New Shipper Review

    Science.gov (United States)

    2012-01-31

    .... See Order, 66 FR at 63672. Thus, the antidumping duty order on honey from Argentina has a December... FR 63672 (December 10, 2001) (Order). In accordance with section 751(a)(2)(B) of the Tariff Act of... International Trade Administration Honey From Argentina: Notice of Initiation of Antidumping Duty New...

  2. 76 FR 29192 - Honey From Argentina: Final Results of Antidumping Duty Administrative Review

    Science.gov (United States)

    2011-05-20

    ... established in the LTFV investigation. See Notice of Antidumping Duty Order; Honey From Argentina, 66 FR 63672... Argentina: Preliminary Results of Antidumping Duty Administrative Review, 76 FR 2655 (January 14, 2011... to the Tariff Act of 1930, As Amended, 70 FR 24533 (May 10, 2005). Period of Review The POR...

  3. 76 FR 74044 - Honey From Argentina: Final Results of Antidumping Duty New Shipper Review

    Science.gov (United States)

    2011-11-30

    ... Honey From Argentina: Preliminary Results of Antidumping Duty New Shipper Review, 76 FR 54202 (August 31... Antidumping and Countervailing Duty Proceedings: Assessment of Antidumping Duties, 68 FR 23954 (May 6, 2003... International Trade Administration Honey From Argentina: Final Results of Antidumping Duty New Shipper...

  4. Towards a New Cartography of Curriculum Reform: Reflections on Educational Decentralization in Argentina.

    Science.gov (United States)

    Dussel, Ines; Tiramonti, Guillermina; Birgin, Alejandra

    2000-01-01

    States that educational reforms in Argentina have reshaped both school knowledge and institutional patterns of school administration. Analyzes the process of "curriculum reterritorialization" in Argentina, the contradictions and displacements it produces, and the hybrid products that result. Traces reterritorialization through four movements. (CMK)

  5. VERTICAL TRANSMISSION OF DENGUE VIRUS IN Aedes aegypti COLLECTED IN PUERTO IGUAZÚ, MISIONES, ARGENTINA

    Directory of Open Access Journals (Sweden)

    Manuel Espinosa

    2014-04-01

    Full Text Available A finding of vertical transmission of the DEN 3 virus in male specimens of Aedes aegypti, collected in the 2009 fall-winter period, in Puerto Iguazú city, Misiones, Argentina, using the RT-PCR technique in a 15-specimen pool is reported. This result is analyzed within the context of the epidemiological situation of Argentina's northeast border.

  6. Los Ceratopogonidae (Diptera: Culicomorpha del Sistema Serrano de Ventania (Buenos Aires, Argentina The Ceratopogonidae (Diptera: Culicomorphafrom the Sistema Serrano de Ventania (Buenos Aires, Argentina

    Directory of Open Access Journals (Sweden)

    Pablo I. Marino

    2011-12-01

    Full Text Available Se brinda un listado de especies de ceratopogónidos presentes en el Sistema Serrano de Ventania, Buenos Aires, Argentina. Se realizaron seis viajes de estudio y se relevaron nueve sitios de muestreo. Se identificaron 25 especies pertenecientes a ocho géneros, de las cuales sólo Culicoides venezuelensis y Brachypogon (Brachypogon bonaerensis han sido citadas previamente para el área. Ocho especies se registran por primera vez para la provincia de Buenos Aires y una para Argentina.A list of the ceratopogonid species from the Sistema Serrano de Ventania, Buenos Aires, Argentina is presented. Six field trips were carried out sampling nine different localities. Twenty five species of ceratopogonids belonging to eight genera were recorded; only Culicoides venezuelensis and Brachypogon (Brachypogon bonaerensis were known from the area. Eight species are reported for the first time from Buenos Aires province and one from Argentina.

  7. Control of gaseous emissions in central Costanera S.A. of Argentina; Control de emisiones gaseosas en central Costanera S. A. de Argentina

    Energy Technology Data Exchange (ETDEWEB)

    Brabenec, Edgardo [Unidad de Negocios Central Costanera, S. A., (Argentina)

    1996-12-31

    A description is presented of the equipment utilized at the Central Costanera, S.A. of Argentina, the requirements and the Environmental Management established for this Power Station, and the Standards and the resolutions and law instruments on Environmental issues. Also it is presented the Environmental Management plan of the Ente Nacional Regulador de Electricidad of Argentina as well as the controls and environmental corrective actions implemented at the Central Costanera, S.A. [Espanol] Se presenta una descripcion del equipo utilizado en la Central Costanera S.A. de Argentina, los requerimientos de gestion ambiental establecidos para esta central y las normas, resoluciones e instrumentos juridicos en materia ambiental. Se presenta ademas el plan de gestion ambiental del Ente Nacional Regulador de la Electricidad de Argentina asi como los controles y acciones correctivas ambientales implantadas en la Central Costanera S. A.

  8. Long-term landscape evolution of the South Atlantic "passive" continental margin in Eastern Argentina using apatite fission-track thermochronology

    Science.gov (United States)

    Pfister, Sabrina; Kollenz, Sebastian; Glasmacher, Ulrich A.

    2015-04-01

    spontaneous fission-tracks and were used to test geological t-T models against the AFT data set. These models will lead to a more detailed insight on the cooling history and tectonic activities in the research area. In addition there will be an outlook on further models including AFT, ZrFT and ZrHe data, which show that the Sierras Septentrionales seems to be influenced by the folding and wrenching of the neighboring Sierras Australes (Rosello et al. 1997). References Cingolani, C. A. The Tandilia System of Argentina as a southern extension of the Río de la Plata craton: an overview. International Journal of Earth Sciences 100, 221-242 (2011). Demoulin, A., Zarate, M., Rabassa, J. Longterm landscape development: a perspective from the southern Buenos Aires ranges of east central Argentina. Journal of South American Earth Sciences 19, 193-204 (2005). Ketcham, R. A. Forward and inverse modeling of low-temperature thermochronometry data, in Low-Temperature Thermochronology: Techniques, Interpretations, and Applications (eds. by Reiners, P. W. & Ehlers, T. A.) 275-314 (Mineralogical Society of America/Geochemical Society Reviews in Mineralogy and Geochemistry, Chantilly, Virginia, 2005). Ketcham, R. A., et al. Improved modeling of fission-track annealing in apatite. American Mineralogist, 92, 789-798 (2007). Ketcham, R. A., Donelick, R. A., Balestrieri, M. L., Zattin, M. Reproducibility of apatite fission-track length data and thermal history reconstruction, Earth and Planetary Science Letters 284, 504-515 (2009). Rossello, E.A.; Massabie, C.; Lopez- Gamundi, O.R.; Cobbold, P.R.; Gapais, d.; 1997: Late Paleozoic transpression in Buenos Aires and northeast Patagonia ranges, Argentina Journal of South American Earth Sciences, 10 (5-6), pp.389-402. Zalba, P. E., Manassero, M., La Verret, E., Beaufort, D., Meunier, A., Morosi, M., Segovia, L. Middle Permian telodiagenetic processes in Neoproterozoic sequences, Tandilia System, Argentina. Int. J. of Sed. Res. 77, 525-538 (2007).

  9. Late Oligocene-Early Miocene compressional tectosedimentary episode and associated land-mammal faunas in the Andes of central Chile and adjacent Argentina (32 37°s)

    Science.gov (United States)

    Semper, Thierry; Marshall, Larry G.; Rivano, Sergio; Godoy, Estanislao

    1994-01-01

    A reassessment of the geologic and land-mammal fossil evidence used in attribution of a tectosedimentary episode in the Andes between 32 and 37°S to the Middle Eocene "Incaic tectonic phase" of Peru indicates that the episode occurred during Late Oligocene-Early Miocene times(~ 27-20 Ma). From west to east, three structural domains are recognized for this time span in the study area: a volcanic arc (Chile); a thin-skinned, E-verging fold-thrust belt (Cordillera Principal, Chile-Argentina border strip); and a foreland basin (Argentina). Initiation of thrusting in the Cordillera Principal fold-thrust belt produced the coeval initiation of sedimentation in the foreland basin of adjacent Argentina. This onset of foreland deposition postdates strata bearing a Divisaderan Land Mammal Age fauna (i.e. ~ 35-30 Ma) and is marked at ~ 36°30'S by the base of the "Rodados Lustrosos" conglomerates, which are conformably overlain by sedimentary rocks containing a Deseadan Land Mammal Age fauna (i.e. ~ 29-21 Ma). Geologic relationships between the thick volcanic Abanico (Coya-Machalí) and Farellones formations also demonstrate that this tectosedimentary episode practically ended at ~ 20 Ma at least in the volcanic arc, and was therefore roughly coeval with the major tectonic crisis (~ 27-19 Ma) known in northwestern Andean Bolivia some 1500 km to the north. This strongly suggests that a long, outstanding tectonic upheaval affected at least an extended 12-37°S segment of the Andean margin of South America during Late Oligocene and Early Miocene times.

  10. Revision of Amygdalodon patagonicus Cabrera, 1947 (Dinosauria, Sauropoda

    Directory of Open Access Journals (Sweden)

    O. W. M. Rauhut

    2003-01-01

    Full Text Available The type material of the oldest known sauropod dinosaur from South America, Amygdalodon patagonicus, from the Cerro Carnerero Formation (Toarcian-Bajocian of Chubut province. Argentina, is reviewed. The material includes elements of at least two individuals plus a remain of another, indeterminate vertebrate, and a posterior dorsal vertebra is designated as the lectotype of Amygdalodon. All of the sauropod material originally referred to this species represents very basal, non-neosauropodan eusauropods. Amygdalodon is the only South American evidence for a probable Early to early Middle Jurassic global dispersal of basal eusauropodan sauropods. Das Typusmaterial des ältesten südamerikanische sauropoden Dinosauriers. Amygdalodon patagonicus von der Cerro Carnerero Formation (Toarc-Bajoc der Provinz Chubut, Argentinien, wird revidiert. Das Material enthält Elemente von mindestens zwei Individuen sowie eines anderen, nicht identifizierbaren Wirbeltieres. Ein hinterer Dorsalwirbel wird als Lektotypus von Amygdalodon bestimmt. Das gesamte ursprünglich zu diesem Taxon gestellte Sauropodenmaterial repräsentiert sehr basale Eusauropoden außerhalb der Neosauropoda. Amygdalodon ist der einzige südamerikanische Hinweis auf eine vermutlich globale Verbreitung der Eusauropoden im unteren bis frühen mittleren Jura. doi:10.1002/mmng.20030060110

  11. El mercado matrimonial de las familias tradicionales argentinas, 1900-1940: Algunas dimensiones y tendencias The Marriage Market of Traditional Argentinean Families, 1900-1940: Some Aspects and Trends

    Directory of Open Access Journals (Sweden)

    Leandro Losada

    2012-04-01

    Full Text Available El artículo estudia el mercado matrimonial de las familias tradicionales argentinas entre 1900 y 1940, a partir de una muestra de 550 casamientos y del análisis de sus pautas sociales y culturales. El periodo elegido incluye el momento de máximo esplendor de esas familias en la sociedad argentina (entre 1900 y mediados de la década de 1910 aproximadamente así como el arco temporal en que se produjo el ocaso de su gravitación (las décadas de 1920 y 1930. El propósito es pensar la relación entre las pautas matrimoniales y el ascenso y la declinación de la elite tradicional, un problema hasta el momento descuidado por la historiografía argentina.The article studies the marriage market of traditional Argentinean families between 1900 and 1940 on the basis of a study of 550 marriages and the analysis of their social and cultural patterns. The period chosen includes the florescence of these families in Argentinean society (approximately between 1900 and the middle of the 1910s as well as the are of time during which they declined (the 1920s and 1930s. The aim is to explore the link between marriage patterns and the rise and fall of the traditional elite, a problem that has so far been neglected by Argentinean historiography.

  12. Toxocara seroprevalence in children from a subtropical city in Argentina Prevalencia de anticuerpos anti Toxocara en niños de una ciudad subtropical de Argentina

    Directory of Open Access Journals (Sweden)

    José Mario ALONSO

    2000-08-01

    Full Text Available Most studies from Argentina have focused on toxocariasis as an environmental problem of big cities, and there are no available data about children infection from small or middle-sized cities. In order to assess the prevalence of anti-Toxocara antibodies in infantile population, 206 children from Resistencia, of both sexes, aged 1-14 years old were studied by Elisa testing with E/S T. canis L2 antigens. Hematological parameters and immunoglobulin levels were determined; five days' stool samples were studied and epidemiological data were obtained by means of a questionnaire to parents. Results showed that 73% of the children had one or more dogs living at home, 57% reported geophagia and 37.9% were positive for Toxocara serology, but there was no significant difference in prevalence neither for boys and girls, nor concerning age. An increased risk of infection was observed in age groups 5-6 and 7-8 for boys, and in age groups 3-4 and 5-6 for girls.La mayoría de los estudios realizados en Argentina, han enfocado a la Toxocariosis como un problema medioambiental propio de las grandes ciudades y no existen datos acerca de esta infección entre los niños de ciudades medianas o pequeñas. A fin de determinar la prevalencia de anticuerpos anti-Toxocara en la población infantil de la ciudad de Resistencia, se estudiaron 206 niños de ambos sexos, con edades comprendidas entre los 1-14 años, mediante el test de Elisa, empleando antígenos E/S de larva L2 de Toxocara canis. También se evaluaron los niveles de inmunoglobulinas séricas y los parámetros hematológicos; se efectuaron análisis coproparasitológico seriados en heces de 5 días y se recolectó información epidemiológica mediante cuestionario a los padres. Los resultados obtenidos señalan que el 73% de los niños tenían uno o mas perros viviendo en la casa, que el 57% tenían antecedentes de geofagia y que el 37.9% tenían serología positiva para Toxocara, aunque no hubo diferencias

  13. Multiple Osteomas in Middle Ear

    Directory of Open Access Journals (Sweden)

    Yongxin Li

    2012-01-01

    Full Text Available Since the first description of middle ear osteomas by Thomas in 1964, only few reports were published within the English literatures (Greinwalid et al., 1998; Shimizu et al., 2003; Cho et al., 2005; and Jang et al., 2009, and only one case of the multiple osteomas in middle ear was described by Kim et al., 2006, which arose from the promontory, lateral semicircular canal, and epitympanum. Here we describe a patient with multiple middle ear osteomas arising from the promontory, incus, Eustachian tube, and bony semicanal of tensor tympani muscle. This patient also contracted the chronic otitis media in the ipsilateral ear. The osteomas were successfully removed by performing type III tympanoplasty in one stage.

  14. La Argentina, en la prensa española

    Directory of Open Access Journals (Sweden)

    Lic. Diana Cazaux

    2000-01-01

    Full Text Available El presente trabajo denominado "La Argentina, en la prensa española" es una síntesis de los aspectos salientes de la investigación académica efectuada durante el período 1999/2000 por la licenciada en Ciencias de la Información Diana Cazaux y el licenciado en Periodismo Marcelo Botto. En la investigación académica inédita, se realizó un estudio comparativo de las notas publicadas por diarios españoles, lo que permitió arribar a las primeras conclusiones sobre el interés que genera Argentina en el periodismo español y sobre el tratamiento que efectúan los medios gráficos más importantes de España sobre los sucesos acontecidos en Argentina.La licenciada Diana Cazaux es directora del Departamento de Periodismo y docente titular de las asignaturas Introducción a la Comunicación Periodística y Medios I de las carreras de Periodismo y Ciencias de la Comunicación de la Facultad de Informática, Ciencias de la Comunicación y Técnicas Especiales de la Universidad de Morón.El licenciado Marcelo Botto es director de la Agencia de Noticias de la UM, subdirector de Publicaciones y docente autorizado de la asignatura Medios I de las carreras de Periodismo y Ciencias de la Comunicación de la Facultad de Informática, Ciencias de la Comunicación y Técnicas Especiales de la Universidad de Morón

  15. The paradigm of paraglacial megafans of the San Juan river basin, Central Andes, Argentina

    Science.gov (United States)

    Suvires, Graciela M.

    2014-11-01

    The spatial distribution and several morphometric characteristics of the Quaternary alluvial fans of the San Juan River, in the province of San Juan, at the Central and Western part of Argentina, have been studied to classify them as paraglacial megafans, as well to ratify its depositional environmental conditions. The high sedimentary load exported by San Juan river from the Central Andes to the foreland depressions is estimated about 3,682,200 hm3. The large alluvial fans of Ullum-Zonda and Tulum valleys were deposited into deep tectonic depressions, during the Upper Pleistocene deglaciation stages. The outcome of collecting remotely sensed data, map and DEM data, geophysical data and much fieldwork gave access to morphometric, morphographic and morphogenetic data of these alluvial fans. The main drainage network was mapped on processed images using QGis (vers.2.0.1). Several fan morphometric parameters were measured, such as the size, the shape, the thickness, the surface areas and the sedimentary volume of exported load. The analyzed fans were accumulated in deep tectonic depressions, where the alluvium fill reaches 700 to 1200 m thick. Such fans do not reach the large size that other world megafans have, and this is due to tectonic obstacles, although the sedimentary fill average volume surpasses 514,000 hm3. The author proposes to consider Ullum-Zonda and Tulum alluvial fans as paraglacial megafans. According to the stratigraphic relationships of the tropical South American Rivers, the author considers that the San Juan paraglacial megafans would have occurred in the period before 24 ka BP , possibly corresponding to Middle Pleniglacial (ca 65-24ka BP). They record colder and more humid conditions compared with the present arid and dry conditions.

  16. HYDRAULIC ANALYSES FOR A NEW BRIDGE OVER THE PARANA RIVER, ARGENTINA

    Institute of Scientific and Technical Information of China (English)

    Andrés RODRIGUEZ; Daniel BREA; Daniel Farías; Héctor R. BRAVO; Edgar Castelló; Gerardo HILLMAN; Juan WEBER; Mariana PAGOT; Pablo SPALLETTI

    2003-01-01

    This paper summarizes hydraulic studies carried out as part of the feasibility study for a new bridge over the Parana River in Argentina. The bridge will physically connect the provinces of Santa Fe and Corrientes, currently separated over the length a 200-km river reach. In addition to the hydraulic studies summarized here, the feasibility study includes analyses of the geology and geomorphology of the sites, land surveying, geophysical and hydrologic studies, studies of the navigation channel and fluvial transportation, transportation studies, and environmental impact studies. The main components of the present study were a geomorphologic analysis of the middle reach of the Parana River, and a quantitative hydraulic study. Qualitative and quantitative analyses provided a description of the hydraulic system, and served as a basis for a comparison ofalternative bridge locations and the analysis of their vulnerability. The quantitative hydraulic study included the construction, calibration, and operation of one-dimensional (1D) and depth-averaged two-dimensional (2D) flow models. In order to tie the models to the most reliable data the 1D models covered a 450-km long reach, and included the main channel (about 2 km wide) and the flood plain (about 30 km wide). The results ofthe 1D models played a major role in the selection of the bridge location, and were subsequently used as boundary conditions for 2D modeling. The 2D models were constructed for a 70 km x 30 km modeling domain.This paper presents results of 1D modeling for large floods, both in the natural state and with the proposed bridge, and results of2D modeling in the natural state. Modeling at this scale requires sound judgment to strike a balance between the desirable level of model detail and the cost of acquiring data for model construction and calibration.

  17. Fossil forests in the Austral Basin (Argentina) marking a Cenomanian heterogeneous forced regressive surface.

    Science.gov (United States)

    Varela, A N; Iglesias, A; Poiré, D; Zamuner, A; Richiano, S; Brea, M

    2016-05-01

    The mid-Cretaceous greenhouse period in the southern Patagonia Argentina (Austral Basin) is represented by the Mata Amarilla Formation. It is composed of three informal sections which were deposited in littoral and continental environments. The boundary between the lower and middle sections of the Mata Amarilla Formation shows a drastic reduction in accommodation/sediment supply (A/S) ratio, interpreted as a forced regressive surface. This surface is characterized by a well-developed palaeosol, associated with the extensive preservation of a podocarp-dominated fossil forest over a vast area (more than 5400 km(2) ). Sedimentological and palaeopedological analyses, in conjunction with forest structure, tree density and growth ring analyses, indicate that the mid-Cenomanian forced regression can be distinguished as a non-uniform surface developed over a short period of time. This sequence boundary is recognized through a heterogeneous regional surface, delimited in the western part of the study area by an erosional surface generated by a large lateral channel migration recorded by sheet-like channel deposits with transported logs. By comparison, towards the eastern part of the study area, it appears as a paraconformity bounded by a very mature vertic Alfisol, which may have taken 40-100 ky to develop, and the preservation of a fossil forest in life position with a minimum age of 337 years. It is concluded that the extensive presence of these fossil forests at the same stratigraphic level in a vast region respond to changes in A/S ratio in a forced regressive surface at basin scale. PMID:26663258

  18. DEUDA EXTERNA Y DEUDA PÚBLICA SUSTENTABLES EN ARGENTINA

    OpenAIRE

    Mario Eduardo Firmenich

    2011-01-01

    Las propuestas de solución de un problema estructural tan grave como el de la deuda externa de los países del Sur en general y de la Argentina en particular no debería ser algo de exclusiva responsabilidad de los gobiernos.Esto significa que todos los estamentos de la sociedad civil deben asumir su responsabilidad en construir una opinión pública sobre qué hacer frente al problema de la deuda externa, porque será el conjunto social el que se beneficiará de una correcta solución de este proble...

  19. Insulina y control de la diabetes en la Argentina

    OpenAIRE

    Gagliardino, Juan J; José E. Costa Gil; María C Faingold; León Litwak; Graciela V Fuente

    2013-01-01

    En la Argentina al igual que en todo el mundo hay una brecha importante entre los conocimientos científicos sobre la diabetes mellitus (DM) y su aplicación en la práctica clínica. El control inadecuado de la DM y los factores de riesgo cardiovascular asociados genera una elevada morbimortalidad y el consecuente aumento de su carga socioeconómica. El diagnóstico tardío, la "inercia prescriptiva", especialmente de insulina, y la educación deficiente de integrantes del equipo de salud y personas...

  20. Geopolitics representation: Chile and Argentina in southern ice fields

    Directory of Open Access Journals (Sweden)

    Karen Isabel Manzano Itura

    2015-11-01

    Full Text Available Geopolitics, from concept named in 1917 by Rudolf Kjellén has been in continuous evolution until today. Since the incorporation of the representations, the first concept has been of vital importance in different territorial conflicts’ analysis. By means of a geopolitical analysis, the present article intends to understand the geopolitical representations in the area of southern ice fields, the last boundaries issue that still remains in abeyance between Chile and Argentina and how is that both countries have discussed the problem on a basis of representations, in which maps have been the image of each one facing the other, favoring in this way competition between states.

  1. A new species of Smicridea from Argentina (Trichoptera: Hydropsychidae

    Directory of Open Access Journals (Sweden)

    Julieta V. SGANGA

    2005-01-01

    Full Text Available Se describen el macho y la hembra de una especie nueva de Smicridea (Rhyacophylax Müller (Hydropsychidae: Smicrideinae, recolectados cerca del Parque Nacional El Palmar, provincia de Entre Ríos, Argentina. Los machos se caracterizan por la presencia de tres puntas en el ápice del falo, una dorsal y dos laterales, y dos ganchos internos. La hembras se distinguen fácil- mente por las características de la vagina y de la placa interna.

  2. NOTICIAS SOBRE VISITACION SIVILA. UN ALMA MILAGROSA EN JUJUY, ARGENTINA

    Directory of Open Access Journals (Sweden)

    Alicia Ana Fernández Distel

    2014-12-01

    Full Text Available Here will be elaborated everything that is known by “oral tradition”, journalistic news articles and juridical procedures about the biography of the girl called Visitación Sivila. Her life elapsed between the years 1880 and 1907 in the outskirts of the capital of the province of Jujuy, North Argentina. Her death followed by rape and anthropophagy impacted on the popular imagination, transforming her into a miraculous martyr. Above all young students who still today fill with votive offerings the place of her martyrdom and the grave at the town cemetery where she was burned.

  3. The scientific impact of Einstein's visit to Argentina, in 1925

    CERN Document Server

    Gangui, Alejandro

    2016-01-01

    The arrival of Albert Einstein in Argentina in 1925 had an impact, equally relevant, on the scientific community and on the general public. In this paper we discuss that visit from three different perspectives. Firstly, we consider the conditions that allowed for such visit to be possible. Then we focus on the institutional actors that facilitated it, as well as on the expertise and written references on topics related to relativity theory circulating at the time in the local community. In the last section we consider the implications of that visit for the local scientific environment.

  4. Migration AND Development in Post-Totalitarian Argentina

    Directory of Open Access Journals (Sweden)

    Teodora-Maria Daghie

    2015-08-01

    Full Text Available This paper aims to analyse the migration issues in Argentina, as they are perceived through the lenses of the European Union. Argentine society has faced capital changes in the past twenty years, going from a militarist regime to market economy and liberal democracy. All these have culminated with a profound economic crisis at the beginning of the years 2000, changing perceptions and creating new social patterns. Even though Argentine was since its creation a nation of immigrants, in the latest years this has become a sensitive issue. Deteriorating economic factors gave birth to an anti-immigration wave and to an emigration phenomenon.

  5. The peat bogs of Tierra del Fuego, Argentina

    Energy Technology Data Exchange (ETDEWEB)

    Rabassa, J.; Coronato, A. [Centro Austral de Investigaciones Cientificas, Ushuaia (Argentina); Roig, C. [Universidad Nacional de la Patagonia, Ushuaia (Argentina). Catedra de Geograffa Fisica

    1996-12-31

    The peat bogs and peat deposits of Argentina are briefly described, with emphasis on the island of Tierra del Fuego, where the vast majority of the bogs are concentrated, due to environmental and climatic conditions. The Fuegian bogs are a source of peaty materials, presently used in soil-improving techniques. Further studies are needed to establish other technological possibilities. From the scientific point of view, the Fuegian bogs are outstanding palaeoclimatic and palaeoenvironmental data banks, due to their uninterrupted continuity since Late Glacial times and their exceptional pollen record and subfossil wood remains. (orig.) (9 refs.)

  6. Peregrinos católicos y religiosidad popular en Argentina

    OpenAIRE

    Cristina Teresa Carballo

    2010-01-01

    La religiosidad hoy nos provoca y nos hace pensar en los territorios sagrados no como algo turístico o peculiar, sino como una heterogénea espacialidad donde se construyen mapas híbridos como consecuencia de la diversidad de devociones. El análisis espacial, en este trabajo, es el contexto y el pretexto de una interpretación geográfica de las peregrinaciones en Argentina. Religión, espacio y cultura, nos permiten comprender las significaciones compartidas y producidas por la comunidad católic...

  7. Argentina-Paraguay: una relación especial

    OpenAIRE

    Tini, María Natalia

    2003-01-01

    El presente trabajo el cual busca analizar las relaciones de Argentina y Paraguay en el marco del contexto regional que se vislumbra en la región a partir de la década del noventa. En primer término, el mismo hace referencia a los antecedentes históricos que hacen a esta relación, de manera de ver si luego se repiten las mismas constantes a través de la historia. La segunda parte, se centra a partir de la década del 90, teniendo en cuenta que para este momento, la construcción del bloque regi...

  8. Argentina-EE.UU.: balance de la alianza extra OTAN

    OpenAIRE

    Picazo, María Victoria

    2004-01-01

    Desde 1997 la Argentina reviste la condición de Gran Aliado extra-OTAN de los Estados Unidos. Dicha designación hecha por el ex presidente Bill Clinton ha sido fuertemente debatida, tanto por sus implicancias para el país como para la región en términos de equilibrio subsistémico. Así, nos encontramos con las reacciones de nuestros países vecinos, Chile y Brasil, los que se manifestaron afectados por dicha designación. Sin embargo, la mencionada alianza no ha tenido grandes repercusiones más ...

  9. Fuentes de crecimiento en la Argentina: 1960-2000

    OpenAIRE

    Santiago, Pablo Javier

    2002-01-01

    Fuentes de Crecimiento en Argentina: 1960-2000 es un análisis descriptivo del origen inmediato del crecimiento económico de nuestro país, en ese período de estudio, sobre la base de la "Contabilidad del Crecimiento". Se cuantifican los aportes de los factores productivos, Capital y Trabajo, y la Productividad Total de los Factores (PTF), a la vez que se aplica un modelo teórico para describir la tendencia de éste último componente. Los resultados arrojan un sesgo intensivo de crecimiento en e...

  10. The Current Situation of Female Scientists in Argentina

    Science.gov (United States)

    Llois, Ana María; Dawson, Silvina Ponce

    2009-04-01

    We report the changes that have taken place recently regarding the situation of female scientists in Argentina. We comment on the rules for maternity leave that have been passed recently for research scholars doing their PhDs and on the number of women scientists that occupy decision making-positions in science. We also present some evidence that seems to indicate that, among young scientists, women are more willing to occupy leadership positions and that the Argentinean society is more accepting of this new role.

  11. Thirty Years of the HIV/AIDS Epidemic in Argentina

    OpenAIRE

    Lavadenz, Fernando; Pantanali, Carla; Zeballos, Eliana

    2015-01-01

    This book delves into the combination of factors that make Argentina a success story in combating HIV/AIDS. It analyzes the national and inter-provincial burden of disease, the demographics of new HIV cases, the demand and supply-sides of service delivery, and conducts a cost-benefit analysis of the Argentine National HIV/AIDS Program from 2000 to 2010. This book will be of interest to those who wish to examine key programmatic innovations that have been essential to Argentina’s success i...

  12. New species of Eupalaestrus from Argentina (Araneae, Theraphosidae, Theraphosinae

    Directory of Open Access Journals (Sweden)

    Nelson Ferretti

    2012-09-01

    Full Text Available A new species of Eupalaestrus Pocock, 1901 from northern Argentina is described and illustrated. Males and females of Eupalaestrus larae sp. nov. differ from those all other species of the genus by the color with distinct two parallel longitudinal stripes on the femora, patellae, tibiae and one longitudinal stripe reaching half of metatarsi; the presence of a thickened femur and tibia IV; a straight embolus of the male palpal bulb and retrolateral keel pronounced. Specimens were captured in Chaco province, inhabiting unflooded flat grasslands open areas inside forest in transitional Chaco eco-region.

  13. Nuevos registros para la fauna de Saturniidae (Lepidoptera en Argentina

    Directory of Open Access Journals (Sweden)

    Adriana I. ZAPATA

    2012-01-01

    Full Text Available Se brindan nuevas citas de 17 especies de Saturniidae para la Argentina. Estos registros corresponden a las subfamilias: Arsenurinae [Arsenura xanthopus (Walker y Titaea tamerlan (Maassen]; Ceratocampinae: [Almeidella approximans (Schaus, Cicia nettia (Schaus, Citheronia aroa Schaus, Citheronia maureillei Wolfe & Herbin, Citioica anthonilis (Herrich- Schäffer, Eacles ducalis (Walker, Othorene cadmus (Herrich-Schäffer, Othorene purpurascens (Schaus y Ptiloscola photophila (Rothschild] y Hemileucinae [Cerodirphia brunnea (Draudt, Dirphia curitiba Draudt, Hirpida nigrolinea (Druce, Hylesia ebalus (Cramer, Leucanella gibbosa (Conte y Molippa strigosa (Maassen & Weyding].

  14. Comportamiento de poblaciones argentinas de Diuraphis noxia Kurdjumov (Hemiptera: Aphididae)

    OpenAIRE

    Ricci, Mónica

    2012-01-01

    El trigo es uno de los principales cultivos de cereales producidos, consumidos y comercializados mundialmente. Proporciona más del 20% de las calorías y es un alimento básico en el 35% de la población global. La Argentina es uno de los mayores centros de producción de granos del mundo, donde el trigo juega un rol central. Por otro lado, la producción de cebada cervecera ha crecido notablemente en el país en los últimos 20 años por exigencias de mercado. Dada la importancia de dichos cereales ...

  15. Soybean biomass produced in Argentina: Myths and realities

    Energy Technology Data Exchange (ETDEWEB)

    Semino, S; Jelsoee, E [Department of Environment, Social and Spatial Change, Roskilde University Universitetsvej 1, DK-4000, Roskilde (Denmark); Paul, H [ECONEXUS, PO Box 1455, Oxford OX4 9BS (United Kingdom); Tomei, J [UCL Energy Institute, Central House, 14 Upper Woburn Place, London, WC1H 0HY (United Kingdom); Joensen, L [Grupo de Reflexion Rural, Rondeau, 812 Marcos Paz, 1727, Provincia de Buenos Aires (Argentina); Monti, M, E-mail: semino@ruc.d, E-mail: stella.semino@mail.d [Direccion de Extension e Investigacion Agropecuaria, Ministerio de la Produccion, Provincia de Santa Fe, Pte Peron y Garay, 6100, Rufino, Provincia de Santa Fe (Argentina)

    2009-11-01

    Soybean biomass for biodiesel, produced in Argentina amongst other places, is considered by some to reduce greenhouse gas emissions and mitigate climate change when compared with fossil fuel alternatives. To ensure that the production of biofuels is 'sustainable', EU institutions and national governments are designing certification schemes for the sustainable production of biomass. In this paper, we question the validity of these proposed environmental standards, using the production of Argentine soybean as a case study. We highlight the negative environmental and social impacts of intensive soybean production, and conclude that certification schemes are unlikely to be able to address the detrimental impacts of increased biofuel production and trade.

  16. The rediscovery of Stenogeocoris horvathi Montandon (Heteroptera, Geocoridae in Argentina

    Directory of Open Access Journals (Sweden)

    Pablo M. Dellapé

    2015-06-01

    Full Text Available ABSTRACT Stenogeocoris Montandon, 1913 was described to include S. horvathi based in one specimen from Córdoba Province, Argentina. The type specimen is lost and there are no records or additional material since the Montandon's description; thus, the identity of this taxon has remained uncertain until now. In this contribution, we redescribe the genus Stenogeocoris and the species S. horvathi, based on male and female specimens, including characters from the male genitalia, and compare Stenogeocoris with the other Neotropical genera

  17. Siting studies for new nuclear power plants in Argentina

    International Nuclear Information System (INIS)

    This paper is a summary of the thesis prepared by the Group of Prospective and Energy Planning of the National Atomic Energy Commission for the 'Specialization on Applications of Nuclear Technology Course' of the Instituto Balseiro in 2007. It describes the evolution of siting studies through time and the main focus worldwide in this type of studies. Then, it makes a brief review of previous siting studies of nuclear power plants conducted in Argentina. It carries out a description of the methodology to conduct a site evaluation for nuclear power plants according to actual international criteria. Finally, it describes the licensing process that follows every site study. (author)

  18. New hosts and localities for helminths of carnivores in Argentina.

    Science.gov (United States)

    Moleón, María Soledad; Kinsella, John Mike; Moreno, Pablo Gastón; Ferreyra, Hebe Del Valle; Pereira, Javier; Pía, Mónica; Beldomenico, Pablo Martín

    2015-01-01

    A total of 111 samples (43 faeces and 79 gastrointestinal tracts) of 14 wild carnivore species from 12 Argentine provinces were analyzed. Helminth eggs were identified in 73% of the faecal samples and adult worms were recovered from 81% of the gastrointestinal tracts. We found 19 helminth species. Among the most frequent findings were parasites of domestic carnivores, namely Toxocara canis, Toxocara cati, Toxascaris leonina, Ancylostoma caninum, Ancylostoma tubaeforme and Uncinaria stenocephala. In addition, new hosts are reported for 6 nematode species and 5 helminth species are recorded for the first time in Argentina: Aonchotheca putorii, Molineus brachiurus, Cyathospirura chevreuxi, Physaloptera praeputialis and Oncicola martini. PMID:26701468

  19. La lucha contra el lavado de dinero en Argentina

    OpenAIRE

    Montagna, Carolina

    2009-01-01

    El objetivo de este trabajo es poder brindar al lector una apreciación sobre todos los aspectos que hacen al lavado de dinero en nuestro país, tomando como referencia el año 2007 y 2008. Para abordar el tema partiremos de una breve reseña histórica y luego nos abocaremos a la normativa vigente desde el año 2000. Para ello describiremos las normas internacionales que la Argentina está comprometida a cumplir y desarrollaremos las obligaciones impuestas por la ley 25.246 a l...

  20. The origins and professionalization of cognitive psychotherapy in Argentina.

    Science.gov (United States)

    Korman, Guido Pablo; Viotti, Nicolás; Garay, Cristian Javier

    2015-05-01

    The growing popularity of cognitive-behavioral therapy (CBT) has helped reshape the mental health scene in the city of Buenos Aires, historically the stronghold of psychoanalysis. In the early 1980s, CBT was infrequently used and sometimes overtly resisted in the field of mental health. Almost 3 decades later, the impact of CBT has increased dramatically in Argentina, not only in independent practice but also in the health system and in everyday life. This article aims to describe the process by which Argentine psychotherapists first adopted this new theoretical framework. PMID:26120921

  1. Economic analysis of management factors in milk production (Argentina)

    OpenAIRE

    García Martínez, Antón Rafael; Schilder, E.; Reyes López, J.; Rodríguez Alcaide, J.J.; Martos Peinado, José; Sánchez Bilbao, J.C.; Galetto, A.

    1995-01-01

    El presente trabajo analiza la influencia del tacto rectal TA, control de mamitis CM y eliminación de primeros chorros EC en la producción diaria por vaca de la Cuenca Central Santafesina (Argentina). Se cuantifican las pérdidas de no realizar tacto rectal, control de mamitis y eliminación de primeros chorros. Dichos factores inciden un 28,95 p. 100 en la producción. El cambio de técnica puede suponer unos ingresos adicionales de 10000 dólares.

  2. Aphididae (Hemiptera on ornamental plants in Córdoba (Argentina Aphididae (Hemiptera en plantas ornamentales de Córdoba (Argentina

    Directory of Open Access Journals (Sweden)

    Alfonsina Szpeiner

    2008-06-01

    Full Text Available In 30 surveys across Cordoba city and surroundings (Argentina I recorded, from November 2001 to May 2002, a total of 109 ornamental plants infested with aphid colonies. Surveys were conducted in the local botanical garden as well as homestead gardens and nurseries. Seventeen species of aphids were identified, 4 of which are new species in the area, from 47 ornamental plants. In a total of 59 plant/aphid associations, 38 new associations were found. I present the first record of aphids colonizing Cactaceae in Argentina. Most aphid colonies were medium and a high proportion (more than 40% showed alate individuals. The most frequent aphid species, Aphis gossypii Glover and Aphis craccivora Koch were especially associated with the most frequent damages: curled leaves or buds and necrosis, respectively. More than 30% of aphid colonies were attended by ants. Camponotus Mayr and Prenolepis Mayr were the ant genus attending the highest number of aphid species.En 30 censos realizados en la ciudad de Córdoba y alrededores (Argentina se registraron, entre noviembre de 2001 y mayo de 2002, un total de 109 plantas ornamentales infestadas de colonias de áfidos. Los censos fueron realizados en jardines, viveros y el jardín botánico de la ciudad. Se identificaron 47 especies de plantas ornamentales infestadas con 17 especies de áfidos (4 nuevas en el área. Se establecen 59 relaciones áfido/planta, de las cuales 38 son nuevas. Se obtuvo el primer registro de áfidos que colonizan Cactaceae en Argentina. La mayoría de las colonias de áfidos fueron medianas y una alta proporción (más del 40 % mostró individuos alados. Aphis gossypii Glover y Aphis craccivora Koch, fueron las especies más frecuentes y generaban los daños más conspicuos, como el enrollamiento y la necrosis foliar. Más del 30% de las colonias estuvieron atendidas por hormigas, siendo Camponotus Mayr y Prenolepis Mayr los géneros de hormigas que frecuentaban el mayor número de

  3. Síndrome metabólico en empleados en la Argentina Metabolic syndrome in employees in Argentina

    OpenAIRE

    Raúl I Coniglio; Jorge Nellem; Roberto Gentili; Norberto Sibechi; Elisa Agusti; Marta Torres

    2009-01-01

    La detección del síndrome metabólico (SM) es útil para identificar individuos en riesgo para la diabetes mellitus tipo 2 y la enfermedad coronaria. Los objetivos de este trabajo fueron describir la prevalencia del síndrome metabólico (SM) en empleados de 40 a 65 años utilizando diferentes definiciones y analizar la relación con el nivel de educación y el sexo, mediante una investigación observacional, transversal y multicéntrica en diferentes regiones de Argentina. Se compararon las definicio...

  4. Hydatidosis in the province of La Pampa, Argentina, 1998. Hidatidosis en la provincia de La Pampa, Argentina, 1998

    OpenAIRE

    Roberto Lamberti; Claudio Calvo; Arian Pombar; Lilia Gino; Emiliano Alvarez E.; Carlos Aguado; Edmundo Larrieu

    1999-01-01

    Echinococcus granulosus is the agent that causes the classical hydatidosis or cystic echinoccosis. The most spread cycle in South America is the sheep-dog cycle, and offers favorable conditions for the development of the parasite. As the province of La Pampa shows an endemic presence with notification of cases and infected dogs, the present work has the aim of contributing to the study of the distribution and prevalence of the disease in the distritc of Maracó, La Pampa, Argentina. Dogs of 36...

  5. Chinese Middle-Aged Confusion

    Institute of Scientific and Technical Information of China (English)

    CHENXINXIN

    2003-01-01

    THE middle-aged generation,those of the age 40 to 55, is special in China. Born in the 1950s and early 1960s, they grew up in the most difficult and chaotic periods of recent Chinese history, having experienced and suffered the Great Leap Forward at the end of the fifties and the “cultural revolution” ( 1966-1976).

  6. Antinuclear movement in Middle Tennessee

    International Nuclear Information System (INIS)

    This is a social anthropological analysis of the antinuclear movement in Middle Tennessee. This social movement was determined to halt the construction of proposed nuclear power plants in Tennessee, especially one the Tennessee Valley Authority (TVA) intended to build in Middle Tennessee. The data for the study were gathered by participant-observation interviewing, and the examination of documents from February 1973 through March 1975. The treatment of the data is based on transactional analysis and portions of the network model. This social movement was composed of a series of informally organized cells connected by a loose network of people who visited and talked with one another. Individual cells tended to be organized on a geographical basis, as was communication. Activity-initiators, however, often contacted antinuclear personnel in other Middle Tennessee cells. Movement activity for many of the antinuclear activists was short-lived. The strategic maneuvers of the movement utilized all the structurally and legally possible alternatives and the nuclear opponents hoped that the public would pressure public officials to oppose nuclear plants. Although the antinuclear activists worked very hard, they did not succeed in halting the planned construction of the Middle Tennessee nuclear plant. Indeed, they had not succeeded in the summer of 1977

  7. Class Guitar in Middle School.

    Science.gov (United States)

    Gustafson, Grant

    1996-01-01

    Provides a thorough overview of middle school guitar instruction discussing both private and group lessons. Considers the role of the guitar as both a solo instrument and in ensemble and orchestra. Includes curricular guidelines for a beginning guitar course and a sample list of songs for a final recital. (MJP)

  8. Middle Level Learning Number 47

    Science.gov (United States)

    Lapham, Steven S.; Hanes, Peter; Turner, Thomas N.; Clabough, Jeremiah C.; Cole, William

    2013-01-01

    This issue's "Middle Level Learning" section presents two articles. The first is "Harriet Tubman: Emancipate Yourself!" (by Steven S. Lapham and Peter Hanes). "Argo," which won the 2012 Oscar for best picture, was about a daring escape of six U.S. diplomats from Iran during the 1979 hostage crisis. Now imagine…

  9. Research on textbooks in Argentina (2003-2013

    Directory of Open Access Journals (Sweden)

    Carolina Kaufmann

    2014-09-01

    Full Text Available This work aims to make an overview of the School User has Argentina in the decade 2003-2013. For this purpose, an account of the expansion and the progress of the studies focused on school textbooks is given, nourished with the inquiry primarily from the historiographical educational field. Such inquiries relate to subjects who have participated in the development of the discipline as well as in the dissemination of successful productions. The article presents empirical data from the survey of indicators and informations they possess in different academic areas and national academic system. Also, there is a review of the development of the thematic and methodological predilections in the production environment. Moreover, the article gives an account of the landmarks and progress in the area and identifies the new challenges facing the research on school textbooks. The objectives of this work are: show evidence of original contributions of scientific research in the academic area and find elements of connection between the studies of the school texts in the Latin American countries and European. How to reference this article Kaufmann, C. (2015. Manualística Escolar en Argentina (2003-2013. Espacio, Tiempo y Educación, 2(1, pp. 69-95. doi: http://dx.doi.org/10.14516/ete.2015.002.001.005

  10. HÁBITAT Y CONDICIONES DE VIDA EN LA ARGENTINA

    Directory of Open Access Journals (Sweden)

    Guillermo A. Velázquez

    2007-01-01

    Full Text Available En este trabajo se examina la situación de los indicadores de hábitat –referidos tanto a cobertura de servicios como al ambiente circundante-, que fueron relevados en un formulario ad hoc en el Censo 2001. A partir de un trabajo especial de procesamiento resultó posible incorporar esta información en un SIG para efectuar su evaluación y análisis preliminar con el propósito de relacionarla con las condiciones de vida de la población argentina en el nivel departamental (511 unidades en el 2001. Resulta destacable el grado de inequidad tanto en la provisión de servicios como en la calidad del ambiente circundante; en ambos casos este proceso se encuentra estrechamente vinculado con el proceso de exclusión social y la privatización de servicios públicos durante la Argentina de los noventa.

  11. Aphididae (Hemiptera on ornamental plants in Córdoba (Argentina

    Directory of Open Access Journals (Sweden)

    Alfonsina SZPEINER

    2008-01-01

    Full Text Available En 30 censos realizados en la ciudad de Córdoba y alrededores (Argentina se registraron, entre noviembre de 2001 y mayo de 2002, un total de 109 plantas ornamentales infestadas de colonias de áfidos. Los censos fueron realizados en jardines, viveros y el jardín botánico de la ciudad. Se identificaron 47 especies de plantas ornamentales infestadas con 17 especies de áfidos (4 nuevas en el área. Se establecen 59 relaciones áfido/planta, de las cuales 38 son nuevas. Se obtuvo el primer registro de áfidos que colonizan Cactaceae en Argentina. La mayoría de las colonias de áfidos fueron medianas y una alta proporción (más del 40 % mostró individuos alados. Aphis gossypii Glover y Aphis craccivora Koch, fueron las especies más frecuentes y generaban los daños más conspicuos, como el enrollamiento y la necrosis foliar. Más del 30% de las colonias estuvieron atendidas por hormigas, siendo Camponotus Mayr y Prenolepis Mayr los géneros de hormigas que frecuentaban el mayor número de especies de áfidos.

  12. Market Report : The air pollution control market in Argentina

    International Nuclear Information System (INIS)

    This report presents some facts about how Canadian companies can work within the many innovative programs designed by the Canadian federal government to facilitate the export of Canadian products and services into the Argentine air pollution control market. As the economy stabilizes in Argentina, more effort is being given to issues of environmental protection and the Argentine government is increasing funding on environmental programs. The country is also strengthening its environmental legislation and increasing enforcement. The Kyoto and Montreal Protocols have brought attention to air quality issues such as climate change, emissions trading, and ozone depleting substances. Several initiatives currently focus on air quality monitoring and data collection since much information has to be gathered on air pollution levels. Emission control equipment for chemical, petrochemical, mining and power sectors are the best prospects for air pollution control, along with monitoring equipment, consulting services and fuel conversion equipment for vehicles and industrial plants. It was noted that there are legal and practical difficulties regarding new contract negotiations in Argentina, particularly with the decline in credit availability. This paper outlined the key factors shaping market growth. Most opportunities lies with projects funded by international financial institutions. The report includes a section on international competition, and the Canadian position for both private- and public-sector companies. A section on market logistics focused on issues such as direct sales, import regulations, and export credit risks. It is recommended that companies interested in the Argentine market contact the Embassy in Buenos Aires for information. refs., tabs

  13. [Hereditary angioedema. Treatment of acute attacks in Argentina].

    Science.gov (United States)

    Malbrán, Alejandro; Malbrán, Eloisa; Menéndez, Alejandra; Fernández Romero, Diego S

    2014-01-01

    In the world, hereditary angioedema (HAE) affects 1 every 50000 persons. It is characterized by highly disabling and recurrent episodes of cutaneous, abdominal and laryngeal episodes of angioedema. Asphyxia related mortality ranges from 15 to 50%. In Argentina a plasma derived C1 inhibitor concentrate (pdC1INH) has been available for the treatment of acute attacks for many decades, however, only15 (26%) out of 58 patients had received pdC1INH at least once until 2008, and only2 (3.4%) had used it regularly. After worldwide approval of the new drugs for the treatment of acute HAE attacks, adding icatibant to pdC1INH in Argentina, and after publication of the therapeutic guide for the country, 42 (82%) out of 51 patients from the original group has pdC1INH available to treat their next attack. However, 16 (18%) patients continue without access to medication and other 15 (35.7%) obtain their therapy spuriously through some other affected relative in their environment. Only 12 (28.6%) patients of the group self-treated at home. Access to treatment has greatly improved, but needs to be extended to all patients and self-treatment at home should be encouraged.

  14. Angioedema hereditario: Tratamiento del ataque agudo en la Argentina

    Directory of Open Access Journals (Sweden)

    Alejandro Malbrán

    2014-06-01

    Full Text Available En el mundo, el angioedema hereditario (HAE afecta a 1 de cada 50 000 personas. Produce episodios de angioedema cutáneo, abdominal y laríngeos que generan gran incapacidad. La mortalidad por la enfermedad oscila entre 15 y 50%. Aunque en Argentina un concentrado plasmático de C1 inhibidor (pdC1INH ha estado aprobado y disponible por décadas para el tratamiento del ataque agudo, solo 15 (26% de 58 pacientes había recibido pdC1INH alguna vez hasta el año 2008, y solo 2(3.4% lo usaban regularmente. Luego de la aprobación de los nuevos medicamentos para HAE, incluido el icatibant en Argentina y de la publicación de las guías terapéuticas, 42 (82% de 51 pacientes del grupo original tienen pdC1INH para tratar el próximo ataque. Sin embargo, 16 (18% de estos pacientes continúan sin acceso a la medicación y otros 15 (35.7% acceden a través de otro enfermo en forma espuria. Solo 12 (28.6% de los pacientes con el medicamento puede auto tratarse en su domicilio. La mejora en el acceso a la medicación es importante pero debe extenderse a todos los afectados y facilitarse el auto-tratamiento.

  15. Energy production study of crops with biofuel potential in Argentina

    Energy Technology Data Exchange (ETDEWEB)

    Donato, Lidia; Huerga, Ignacio; Hilbert, Jorge [Instituto Nacional de Tecnologia Agropecuaria (CIA/INTA), Buenos Aires (Argentina). Centro de Investigacion de Agroindustria. Inst. de Ingenieria Rural], Emails: ingdonato@cnia.inta.gov.ar, ihuerga@cnia.inta.gov.ar, hilbert@cnia.inta.gov.ar

    2008-07-01

    The present study is focus on the final energy balance of bioenergy production in Argentina using soybean, sunflower, rapeseed, corn and sorghum as feedstocks. The balance considers the difference between the energy contained per unit and the amount used for its generation in all the different steps from sowing to final destination. For direct energy consumption Costo Maq software was employed using local fuel consumption forecast for each field labor. Particular attention is paid to the energy consumption in the agricultural steps considering the distinctive no till system spread out in Argentina that has a very low energy input. Direct and indirect energy were considered in the different steps of bioethanol and biodiesel generation. Industrial conversion consumption was based on international literature data. Comparisons were made between tilled and no till practices and considering or not the energy contained in co products. Results indicate a balance ranging from 0.96 to 1.54 not considering the co products. If co products were introduced the balances ranged between 1.09 and 4.67. (author)

  16. Root proliferation in native perennial grasses of arid Patagonia, Argentina

    Institute of Scientific and Technical Information of China (English)

    Yanina A. TORRES; Mara M. MUJICA; Sandra S. BAIONI; Jos ENTO; Mara N. FIORETTI; Guillermo TUCAT; Carlos A. BUSSO; Oscar A. MONTENEGRO; Leticia ITHURRART; Hugo D. GIORGETTI; Gustavo RODRGUEZ; Diego BENTIVEGNA; Roberto E. BREVEDAN; Osvaldo A. FERNNDEZ

    2014-01-01

    Pappophorum vaginatum is the most abundant C4 perennial grass desirable to livestock in rangelands of northeastern Patagonia, Argentina. We hypothesized that (1) defoliation reduce net primary productivity, and root length density and weight in the native species, and (2) root net primary productivity, and root length density and weight, are greater in P. vaginatum than in the other, less desirable, native species (i.e., Aristida spegazzinii, A. subulata and Sporobolus cryptandrus). Plants of all species were either exposed or not to a severe defoliation twice a year during two growing seasons. Root proliferation was measured using the cylinder method. Cylindrical, iron structures, wrapped up using nylon mesh, were buried diagonally from the periphery to the center on individual plants. These structures, initially filled with soil without any organic residue, were dug up from the soil on 25 April 2008, after two successive defoliations in mid-spring 2007. During the second growing season (2008-2009), cylinders were destructively harvested on 4 April 2009, after one or two defoliations in mid-and/or late-spring, respectively. Roots grown into the cylinders were obtained after washing the soil manually. Defoliation during two successive years did reduce the study variables only after plants of all species were defoliated twice, which supported the first hypothesis. The greater root net primary productivity, root length den-sity and weight in P. vaginatum than in the other native species, in support of the second hypothesis, could help to explain its greater abundance in rangelands of Argentina.

  17. The programs and context of medical education in Argentina.

    Science.gov (United States)

    Centeno, Angel M

    2006-12-01

    There are 29 medical schools in Argentina (this number has increased rapidly in the last decade) offering a 6-year curriculum that usually consists of 3 years of basic science, 2 years of clinical sciences, and one internship year. Annually, 5,000 physicians graduate from these programs. Admission requirements vary depending on each university's policy. Some do not have entry requirements; others require a course, usually on the basics of mathematics, biology, chemistry or physics, and some introduction to social and humanistic studies. Each year, there are approximately 12,000 first-year medical students attending the 29 schools, which suffer a high dropout rate during the first years because of vocational problems or inability to adapt to university life. Some schools have massive classes (over 2,000 students), which makes it difficult for the schools to perfect their teaching. The number of full-time faculty members is low, and some of them have appointments at more than one medical school. Residency programs offer an insufficient number of places, and fewer than 50% of the graduates can obtain a residency position because of strict admission requirements. Coordination between the Ministry of Health, representing the health care system, and the Ministry of Education, representing the medical education system, needs to be improved. Despite the problems of medical education in Argentina, the movement to improve the education of health care workers is growing. The author offers two recommendations to help accomplish this goal. PMID:17122474

  18. Egg parasitoids of Megamelus spp. (Hemiptera: Delphacidae in Argentina

    Directory of Open Access Journals (Sweden)

    Serguei V. TRIAPITSYN

    2010-01-01

    Full Text Available Se revisaron los parasitoides oófagos (Hymenoptera: Eulophidae, Mymaridae, y Platygastridae de Megamelus spp. (Hemiptera: Delphacidae de la Argentina, y se presenta una clave para su identificación. Se describen cuatro especies nuevas: Anagrus (Anagrus empanadus Triapitsyn, sp. nov. (Mymaridae, parasitoide de M. scutellaris Berg que se alimenta de camalote, Eichhornia crassipes (Martius Solms-Laubach; Aprostocetus (Ootetrastichus riverplaticus Triapitsyn, sp. nov. (Eulophidae: Tetrastichinae, parasitoide de M. bellicus Marino de Remes Lenicov & Sosa; A. (Ootetrastichus yerbamatei Triapitsyn, sp. nov. (parasitoide de M. bellicus, M. scutellaris y Megamelus sp., todos de la provincia de Buenos Aires (A. (Ootetrastichus yerbamatei también se encuentra en Formosa; y Parascelio sabcli Triapitsyn, sp. nov. (Platygastridae: Scelioninae, parasitoide de M. scutellaris en Formosa, la asociación con el huésped es tentativa. Se incluyen otros parasitoides oófagos conocidos de Megamelus spp. en la Argentina, tales como Kalopolynema (Kalopolynema poema Triapitsyn & Berezovskiy (Mymaridae, parasitoide de M. scutellaris en Buenos Aires y también Cremastobaeus atratus Loiácono & Mulvani (Platygastridae: Scelioninae, parasitoide de M. scutellaris en Formosa, la asociación con el huésped es tentativa.

  19. Conservative litigation against sexual and reproductive health policies in Argentina.

    Science.gov (United States)

    Peñas Defago, María Angélica; Morán Faúndes, José Manuel

    2014-11-01

    In Argentina, campaigns for the recognition of sexual and reproductive rights have sparked opposition through litigation in which the dynamics of legal action have come from self-proclaimed "pro-life" NGOs, particularly since 1998, when the conservative NGO Portal de Belén successfully achieved the banning of emergency contraception through the courts. The activities of these groups, acting as a "civil arm" of religion, are focused primarily on obstructing access to legally permissible abortions and bringing about the withdrawal of a number of recognized public policies on sexual and reproductive health, particularly the 2002 National Programme for Sexual Health and Responsible Procreation. This paper analyzes the litigation strategies of these conservative NGOs and how their use of the courts in Argentina has changed over the years. It gives examples of efforts in local courts to block individual young women from accessing legal abortion following rape, despite a ruling by the National Supreme Court of Justice in 2012 that no judicial permission is required. In spite of major advances, the renewed influence of the Catholic hierarchy in the Argentine political scene with the accession of the new Pope poses challenges to the work by feminists and women's movements to extend and consolidate sexual and reproductive rights. PMID:25555765

  20. Present and Future Activities on Neutron Imaging in Argentina

    Science.gov (United States)

    Tartaglione, Aureliano; Blostein, Jerónimo; Cantargi, Florencia; Marín, Julio; Baruj, Alberto; Meyer, Gabriel; Santisteban, Javier; Sánchez, Fernando

    We present here a short review of the main work which has been done in the latest years in neutron imaging in Argentina, and the future plans for the development of this technique in the country, mainly focused in the design of a new neutron imaging instrument to be installed in the future research reactor RA10. We present here the results of the implementation of the technique in samples belonging to the Argentinean cultural heritage and experiments related with hydrogen storage. At the same time, the Argentinean RA10 project for the design and construction of a 30 MW multipurpose research reactor is rapidly progressing. It started to be designed by the National Atomic Energy Commission (CNEA) and the technology company INVAP SE, both from Argentina, in June 2010. The construction will start in the beginning of 2015 in the Ezeiza Atomic Center, at 36 km from Buenos Aires City, and is expected to be finished by 2020. One of the main aims of the project is to offer to the Argentinean scientific and technology system new capabilities based on neutron techniques. We present here the conceptual design of a neutron imaging facility which will use one of the cold neutron beams, and will be installed in the reactor hall. Preliminary simulation results show that at the farthest detection position, at about 17 m from the cold source, a uniform neutron beam on a detection screen with an intensity of about 108 n/cm2/s is expected.

  1. Innovative practices in Psychiatry. Argentina, 1960-1970

    Directory of Open Access Journals (Sweden)

    Aida Alejandra Golcman

    2012-09-01

    Full Text Available The paper analyzes innovative psychiatric practices that took place in Argentina during the sixties and seventies at the Hospital Jose Esteves in the province of Buenos Aires. Objective: To present the coexistence of different paradigms related to mental health in the same institution and to analyze the complexities generated by this scenario. Methodology: This study uses primary sources in the form of medical records of patients admitted to the hospital between 1960 and 1979. The medical records were cross-referenced with publications of newspapers and magazines of the time. Results: The analysis shows that the political environment during the era of military dictatorship —characterized by ideological persecution and the inhibition of political expression— influenced the development of innovative psychiatric practices. At the same time, instances of anti-Semitism and ideological persecution among health workers affected therapeutic approaches. Conclusions: While the introduction of innovative practices in mental health led to some resistance among the more orthodox psychiatrists, the presence of different paradigms shows a plan, both political and professional, to transform psychiatry and admission policy in Argentina.

  2. ESTUDANTES E PROFESSORES NA UNIVERSIDADE ARGENTINA EM TEMPOS MENEMISTAS

    Directory of Open Access Journals (Sweden)

    Mário Luiz Neves de Azevedo

    2010-05-01

    Full Text Available Este trabalho tem o propósito de discutir a situação da universidade argentina nos tempos do Presidente Carlos Saúl Menem (1989-1999. O balizamento histórico na gestão menemista se deve ao fato de este governo ter iniciado várias reformas de corte liberalortodoxo, afetando substancialmente a relação entre a sociedade, o Estado e o Mercado. O marco legal deste tipo de reformismo no sistema de educação superior argentino assenta-se na promulagação da Lei número 24.521, em 20.07.1995. Com o intuito de compreender as implicações das políticas públicas geradas no referido período para o conjunto das universidades argentinas, são apresentados dados e considerações sobre população estudantil, plantel docente, ingresso, evasão, graduação, dedicação exclusiva e o programa de incentivo aos professores pesquisadores.

  3. Un lugar en el mundo: Argentina en el Mercosur

    Directory of Open Access Journals (Sweden)

    Norberto COLOMINAS

    2009-11-01

    Full Text Available RESUMEN: En 1990, Argentina, Brasil, Uruguay y Paraguay firmaron el acuerdo de integración económica denominado Mercado Común del Sur o Mercosur. En la actualidad, Chile está negociando su inclusión del tipo "4+1" y se han iniciado conversaciones con el Pacto Andino y con México en el seno de la ALADI. Colominas destaca la importancia económica que para estos cuatro países ha supuesto la creación del Mercosur, así como que la integración regional puede superar el desarrollo excluyente de estas economías.ABSTRACT: In 1990, Argentina, Brazil, Paraguay and Uruguay signed an aggrement of economical integration denominated Mercado Común del Sur or Mercosur. At present time, Chile is negotiating its inclusion of the type "4+1" and they are also getting into conversations with the Andean Pact and with México and ALADI. Colominas points up the economical importance of this accord for these four countries and that the regional integration can help to overcome the exclusive development of these economies.

  4. Heterogeneidad estructural y microemprendimientos pobres en la Argentina

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    Marta Bekerman

    2012-01-01

    Full Text Available La heterogeneidad de la estructura productiva en Argentina diferencia sectores con distinto grado de desarrollo tecnológico y posibilidades de acumulación. Esto pone en cuestión la visión ortodoxa de una estructura homogénea del capital y evidencia la necesidadde políticas específicas para cada sector. El llamado sector informal, compuesto principalmente por microempresas con escaso o nulo excedente, constituye uno de los sectores más vulnerables de la estructura productiva argentina. Por ello nos proponemos analizar el funcionamiento de este sector a partir de una encuesta realizada a 100 microempresas pobres de la zona sur de la Ciudad de Buenos Aires. Asimismo, a partir de los resultados obtenidos y de un análisis de las políticas públicas que repercuten sobre el sector, se realizan propuestas de políticas principalmente vinculadas a salir de la informalidad, mayor capacitación y financiamiento.

  5. La educación en la Argentina actual

    Directory of Open Access Journals (Sweden)

    Guillermo Jaim Etcheverry

    2000-01-01

    Full Text Available La Argentina atraviesa una seria crisis educativa que se pone de manifiesto en la cantidad de personas educadas con las que cuenta así como en la calidad de los conocimientos que demuestran poseer quienes han pasado por el sistema educativo. Este trabajo se inicia con un análisis de la actitud social ante la educación, destacando la conformidad generalizada de los padres con la educación que reciben sus hijos. Paradójicamente, de acuerdo con todas las evaluaciones realizadas, aquella presenta graves deficiencias. Asimismo, se comentan resultados de estudios que demuestran una caída en la calidad de la educación, evaluada al completar la ensenanza media, en el lapso comprendido entre 1970 y 1995. Después de establecer comparaciones con la situación de otros países, se formulan algunas observaciones generales en relación con el papel que desempeña la dirigencia social en la génesis y el mantenimiento de la crisis educativa que atraviesa el país. Superarla constituye una cuestión de trascendental importancia para el futuro, no sólo económico, sino también social y políticó de la Argentina

  6. Danger on mountain roads, Iglesia Department, San Juan, Argentina

    International Nuclear Information System (INIS)

    This paper is related to Mining Projects at Valle del Cura - Iglesia Department-San Juan Province-Argentina Republic. Basis for an Integrated Management of a Sustainable Mining.It aims at locating and analyzing natural dangers which may interfere high mountain paths, such as climatic, anthropic and/or tectonic factors since they may stop a region development. A hillside, a mountainside,a talus or a slope may have, due to their extensive areas, either lithological or structural variations which might determine the presence of un stability phenomena.The cordillera n Iglesia sector major dangers are related to mass displacement movements as a result of the great quantity of unstable detritus situated in valleys slopes.Landsat images, aerial photographs, topographic and geological maps data allowed to detect several sectors that may generate mass displacement movements, Arroyo de Aguas Negras rising sector was selected because it is on the right of National Route No. 150 trace. It is not only a national, but also an international route that connects Argentina and Chile.(author)

  7. Under the rainbow : the Civil Union Law and sexual minority activism in Buenos Aires, Argentina

    OpenAIRE

    2008-01-01

    The subject of this thesis is the implementation of the Civil Union Law in Buenos Aires, Argentina. The law was the first one in Latin America to recognize same-sex couples. The law is a result of changing conceptions of homosexuality in Argentina during the last few decades. In this time period Argentina has made the transition from an oppressive dictatorship to democracy. Argentina’s recent history has brought about a public awareness about human rights and the AIDS epidemic generated a pub...

  8. A review of hymenopterous parasitoid guilds attacking Anastrepha spp. and Ceratitis capitata (Diptera: Tephritidae) in Argentina

    Energy Technology Data Exchange (ETDEWEB)

    Ovruski, Sergio M.; Orono, Luis E.; Nunez-Campero, Segundo; Schliserman, Pablo; Albornoz-Medina, Patricia; Bezdjian, Laura P.; Nieuwenhove, Guido A. Van; Martin, Cristina B. [Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET), Tucuman (Argentina). Planta Piloto de Procesos Industriales Microbiologicos y Biotecnologia. Div. Control Biologico de Plagas

    2006-07-01

    This study provides detailed information on the diversity, abundance, guilds, host plant and host fly ranges, distribution, and taxonomic status of hymenopterous parasitoid species associated with Ceratitis capitata (Wiedemann) and Anastrepha spp. (A. fraterculus (Wiedemann) and A. schultzi Blanchard) in Argentina. Moreover, the article also argues future needs regarding the use of some parasitoid species as an alternative tool in fruit fly management programs of the National Fruit Fly Control and Eradication Program (PROCEM-Argentina). Data used for this work were obtained from numerous old and recent published articles on fruit fly parasitoids in Argentina. (author)

  9. Reseña del ciclo Escuelas Argentinas emitido por Canal Encuentro

    OpenAIRE

    Trotta, Lucía; Santucci, Claudia

    2010-01-01

    El ciclo Escuelas Argentinas, como el plural de su título lo indica, hace referencia a la diversidad de experiencias educativas. La idea central no consiste en hablar del modelo de escuela argentina tradicional sino de la forma particular que adquiere la institución escuela en cada contexto en el que está inmersa. Escuelas Argentinas consta de dos temporadas con 13 capítulos cada una, de 30 minutos de duración. La producción fue dirigida por Bruno Stagnaro entre los años 2006 y 2008. El ciclo...

  10. CONTRIBUCION AL CONOCIMIENTO DEL GENERO CLADONIA (CLADONIACEAE-LIQUENES DE ARGENTINA Y REGIONES LIMITROFES

    Directory of Open Access Journals (Sweden)

    Lidia I. Ferraro

    2010-11-01

    Full Text Available Cladonia subradiata (Vain. Sandst. se reporta como nueva para la Argentina y Paraguay, C.turgidior (Nyl. Ahti a la Argentina, y C.peziziform, es (With. Laundon a Paraguay. Cladonia ramulosa (With. Laundon y C.humilis (With. Laundon se reporta por primera vez desde el norte de ArgentinaCinco especies de Cladonia son ahora reconocidos en la provincia de Corrientes; se proporciona una clave e ilustraciones

  11. A Review of the Biology of Eucharitidae (Hymenoptera: Chalcidoidea from Argentina

    Directory of Open Access Journals (Sweden)

    Javier Torréns

    2013-01-01

    Full Text Available All the members of Eucharitidae are parasitoid of ants. Argentina has 14 genera and 41 species, but little is known about their biology. Herein are provided new data for host associations (host ant and/or host plant of Galearia latreillei, Kapala spp., Latina rugosa, Orasema aenea, and Orasema sp. A revision of the most relevant biological aspects of Dicoelothorax platycerus, Latina rugosa, Neolirata alta, N. daguerrei, Lophyrocera variabilis, Orasema argentina, O. salebrosa, O. simplex, O. susanae, O. worcesteri, and O. xanthopus is included. New records of K. sulcifacies, Lo. plagiata, and Ob. semifumipennis in Argentina are presented. Galearia proseni is synonymized with G. latreillei.

  12. A review of hymenopterous parasitoid guilds attacking Anastrepha spp. and Ceratitis capitata (Diptera: Tephritidae) in Argentina

    International Nuclear Information System (INIS)

    This study provides detailed information on the diversity, abundance, guilds, host plant and host fly ranges, distribution, and taxonomic status of hymenopterous parasitoid species associated with Ceratitis capitata (Wiedemann) and Anastrepha spp. (A. fraterculus (Wiedemann) and A. schultzi Blanchard) in Argentina. Moreover, the article also argues future needs regarding the use of some parasitoid species as an alternative tool in fruit fly management programs of the National Fruit Fly Control and Eradication Program (PROCEM-Argentina). Data used for this work were obtained from numerous old and recent published articles on fruit fly parasitoids in Argentina. (author)

  13. Middle ear infection (otitis media) (image)

    Science.gov (United States)

    ... is an inflammation and/or infection of the middle ear. Acute otitis media (acute ear infection) occurs ... or viral infection of the fluid of the middle ear, which causes production of fluid or pus. ...

  14. Reconstructing hydroclimatic variability of the Bermejo River (Subtropical Andes of Argentina-Bolivia) through Archival Documents - 17th to 20th centuries

    Science.gov (United States)

    Del Rosario Prieto, M.; Cueto, C.

    2009-09-01

    The purpose of this paper is to use climatic history for contributing to the general objectives of the IAI -CRN II-047 Project. It will reconstruct, from archival documents, the hydroclimatic variability occurring in the high basin of the Bermejo River during the last centuries and its effects on the floods and swellings in the middle basin. The Río Bermejo in the Southern Andes, is a binational (Argentina-Bolivia) river that contributes the largest proportion of the sediment load to the La Plata basin. Its headwaters are in the Subtropical Andes, near Tarija, Bolivia (22?00'14"S, 64?57'38"W). The main headwater tributaries are the Río Grande de Tarija, in Bolivia and the Iruya and San Francisco Rivers in Argentina. When the river abandons the mountain and turns eastwards (Gran Chaco), it acquires the characteristics of typical lowland rivers, widens its course, and occupies a large, low sedimentary plain with vast floodland areas. Quite often during very high sediment discharge the main river avulses and changes its course, creating big alluvial plains that are occupied for many years. Administrative documents from the colonial and republican periods have provided useful information to reconstruct climate and hydrology of the region. Documents from the Archivo General de Indias in Seville, Archivo Nacional de Bolivia and Archivo General de la Nación (Argentina) have been used to identify extreme floods and swellings in the high and middle-basin of the Rio Bermejo from the 17th century to the first decades of the 20th century. Old maps of the region, reports from annals, chronicles, priests' and travelers' descriptions were also used. Diaries written by the military, explorers and government officials in charge of discovering and taking possession of the territory also provide important sources of information. The archival documents show abrupt hydrological changes in response to the climatic fluctuations in the headwaters region. These records document

  15. Eriocóccidos (Hemiptera: Coccoidea encontrados en la Patagonia Argentina Eriococcidae (Hemiptera: Coccoidea found in Patagonia Argentina

    Directory of Open Access Journals (Sweden)

    Patricia González

    2004-07-01

    Full Text Available Se listan cuatro géneros y nueve especies de eriocóccidos presentes en la Patagonia argentina, sobre distintos huéspedes. Chilecoccus browni Miller & González, Chilecoccus spinossus Miller & González, Eriococcus novarinoensis Hoy, Eriococcus rhadinothrix Miller & González, Icelococcus nothofagi Miller & González, sobre Nothofagus dombeyi (Fagaceae. Eriococcus chilensis Miller & González, Eriococcus eurythrix Miller & González, Icelococcus charlini Miller & González, sobre Nothofagus antarctica. Eriococcus eurythrix Miller & González sobre Nothofagus alpina. Icelococcus charlini Miller & González sobre Nothofagus obliqua. Stibococcus cerinus Miller & González sobre Myrceugenia exsucca (Myrtaceae.We list four genera and nine species of eriococcid present in the Patagonia Argentina, on different hosts. Chilecoccus browni Miller & González, Chilecoccus spinossus Miller & González, Eriococcus novarinoensis Hoy, Eriococcus rhadinothrix Miller & González, Icelococcus nothofagi Miller & González, on Nothofagus dombeyi (Fagaceae. Eriococcus chilensis Miller & González, Eriococcus eurythrix Miller & González, Icelococcus charlini Miller & González, on Nothofagus antarctica. Eriococcus eurythrix Miller & González on Nothofagus alpina. Icelococcus charlini Miller & González on Nothofagus obliqua. Stibococcus cerinus Miller & González on Myrceugenia exsucca (Myrtaceae.

  16. Nuevos registros para la fauna de Saturniidae (Lepidoptera en Argentina New records for the fauna of Saturniidae (Lepidoptera from Argentina

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    Adriana I. Zapata

    2012-12-01

    Full Text Available Se brindan nuevas citas de 17 especies de Saturniidae para la Argentina. Estos registros corresponden a las subfamilias: Arsenurinae [Arsenura xanthopus (Walker y Titaea tamerlan (Maassen]; Ceratocampinae: [Almeidella approximans (Schaus, Cicia nettia (Schaus, Citheronia aroa Schaus, Citheronia maureillei Wolfe & Herbin, Citioica anthonilis (Herrich-Schäffer, Eacles ducalis (Walker, Othorene cadmus (Herrich-Schäffer, Othorene purpurascens (Schaus y Ptiloscola photophila (Rothschild] y Hemileucinae [Cerodirphia brunnea (Draudt, Dirphia curitiba Draudt, Hirpida nigrolinea (Druce, Hylesia ebalus (Cramer, Leucanella gibbosa (Conte y Molippa strigosa (Maassen & Weyding].New records are provided for 17 species of Saturniidae from Argentina. The new records correpond to the following subfamilies: Arsenurinae [Arsenura xanthopus (Walker and Titaea tamerlan (Maassen]; Ceratocampinae [Almeidella approximans (Schaus, Cicia nettia (Schaus, Citheronia aroa Schaus, Citheronia maureillei Wolfe & Herbin, Citioica anthonilis (Herrich-Schäffer, Eacles ducalis (Walker, Othorene cadmus (Herrich-Schäffer, Othorene purpurascens (Schaus and Ptiloscola photophila (Rothschild]; and Hemileucinae [Cerodirphia brunnea (Draudt, Dirphia curitiba Draudt, Hirpida nigrolinea (Druce, Hylesia ebalus (Cramer, Leucanella gibbosa (Conte and Molippa strigosa (Maassen & Weyding].

  17. Catálogo de hongos gasteroides (Basidiomycota de Catamarca, Argentina Catalogue of gasteroid fungi (Basidiomycota from Catamarca, Argentina

    Directory of Open Access Journals (Sweden)

    María Marta Dios

    2011-06-01

    Full Text Available Se realiza un listado de los hongos gasteroides de la provincia de Catamarca (Argentina basado en la bibliografía hasta abril de 2010. En total aparecen citadas 43 especies distribuidas en 2 órdenes, 4 familias y 13 géneros. El número de especies catalogadas es relativamente baja pero este número probablemente se incremente cuando se estudien las zonas aún no muestreadas como son las regiones fitogeográfícas de la Puna y las Yungas.A compiled check list of gasteroid fungi of Catamarca Province (Argentina was made. It was based on literature records, available until April 2010. There were 43 species of fungi distributed in 2 orders, 4 families and 13 genera. The number of species recorded in this area was relatively poor but it is likely to increase with the study of unexplored areas not yet surveyed as the phytogeographical regions of the Puna and Yungas.

  18. MIDDLE DIATHESIS IN OLD JAVANESE LANGUAGE

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    Ni Ketut Ratna Erawati

    2014-09-01

    Full Text Available Abstract Old Javanese Langusage (OJL is the language of the archipelago which developed rapidly in the IX-XV centuries. The language has so many alternation verbs in the predicate of the clause structure. Therefore, the problem of the present study is interesting to explore. The term refers to the opinion proposed by Shibatani(1998 and Artawa (2003.Diathesis associated with middle in OJL was found to have three types, namely, the middle diathesis morphological, middle lexical, and middle perifrastic.

  19. Introdnuction to Yangxin No.1 Middle School

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    Yangxin County is in the south of the middle reaches of the Yangtze River with a population of nearly 1,000,000 and Yangxin No.1 Middle School is the only key middle school in the county with a long history and distinct characteristic.

  20. 7 CFR 28.403 - Middling Color.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 2 2010-01-01 2010-01-01 false Middling Color. 28.403 Section 28.403 Agriculture..., TESTING, AND STANDARDS Standards Official Cotton Standards of the United States for the Color Grade of American Upland Cotton § 28.403 Middling Color. Middling Color is color which is within the...