Sample records for dionisio ymad catamarca
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Natalia Salado Paz; Ana S Fogliata; Julio C Avila; Nicolás Montenegro
2011-01-01
Veta Esperanza Sudeste se localiza en el distrito minero Agua de Dionisio, Catamarca, dentro de la provincia geológica de las Sierras Pampeanas Occidentales. La geología del mismo corresponde a rocas metamórficas de bajo grado y cuerpos ígneos intrusivos graníticos a granodioríticos paleozoicos, sedimentos clásticos continentales terciarios y rocas pertenecientes al Complejo Volcánico Farallón Negro del Mioceno. Además, a areniscas, tobas del Plioceno y depósitos fluviales del Cuaternario. En...
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Natalia Salado Paz; Ana S Fogliata; Julio C Avila; Nicolás Montenegro
2011-01-01
Veta Esperanza Sudeste se localiza en el distrito minero Agua de Dionisio, Catamarca, dentro de la provincia geológica de las Sierras Pampeanas Occidentales. La geología del mismo corresponde a rocas metamórficas de bajo grado y cuerpos ígneos intrusivos graníticos a granodioríticos paleozoicos, sedimentos clásticos continentales terciarios y rocas pertenecientes al Complejo Volcánico Farallón Negro del Mioceno. Además, a areniscas, tobas del Plioceno y depósitos fluviales del Cuaternario. En...
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Neoplatonismo y cristianismo en Pseudo-Dionisio Areopagita
Andía, Y. (Ysabel) de
2004-01-01
The author takes in the comprehension of Neoplatonism and Christianism in Dionisio the Areopagita in order to demonstrate what this philosopher owes to platonic and christian theology. She considers the work of Proclus (especially his Commentary to Parmenides and Platonic Theology) and its relation with Dionisio’s De divinis nominibus in order to expose the Theology of this author.
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Influencia del Pseudo Dionisio en Nicolás de Cusa
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Andrés Hubert R
2007-01-01
Full Text Available Nicolás de Cusa (1401-1464 reconoce la influencia del Pseudo Dionisio en su propio pensamiento, especialmente en su teología negativa. Este trabajo busca mostrar esta influencia en el libro referencia del Cusano: el De Docta Ignorantia (la Docta Ignorancia. Esta obra consta de 3 partes. Solo en la primera parte, Nicolás sigue de cerca las ideas del Pseudo Dionisio y solo en ella lo cita. En las demás, aunque se nota la influencia, nuestro autor se siente más libre: las fundaciones están firmes, el constructor puede construir libremente. Para probar esta tesis, se toman dos ejemplos: el tema de las tinieblas y la coincidencia de los opuestos. Este ejercicio permite conocer cómo y por qué se recibió al Pseudo Dionisio en la historia de la teología. Permite también profundizar el sentido de la teología de Nicolás de CusaThe reflections of Nicolas of Cusa (1401-1464 recognise the influence of Pseudo Dyonisius, particularly in his negative theology. The present study shows this influence on Nicolas' most important book: the De Docta Ignorantia (the Learned Ignorance. The book is divided into three parts and it is in the first part that Nicolas directly pursues the ideas of Pseudo Dyonisius and it is only here that he quotes them. In the other parts of the book although the influence is noted, the foundations have been set and are solid and the author or builder can construct with freedom. To prove this thesis, 2 examples are presented: the theme of darkness and the coincidence of opposites. This exercise shows how and why Pseudo Dyonisius has been accepted into the history of the theology. It also deepens the meaning of the Nicolas of Cusa's theology
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El ecumenismo romano desde la perspectiva de la historiografía griega: Dionisio de Halicarnaso
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Domingo PLÁCIDO
2009-10-01
Full Text Available RESUMEN: La figura de Dionisio de Halicarnaso representa un caso privilegiado para el estudio del ecumenismo romano, si se considera que se trata de un concepto recibido de la civilización griega, potenciado gracias al imperialismo romano que en gran medida servía de tema básico para su obra historiográfica. En la formación del Principado, vista desde la cultura griega, Dionisio de Halicarnaso se hace portavoz de la herencia que recoge la tradición de Roma como ciudad griega. En Dionisio se sintetizan, en un sola imagen ideológicamente configurada, los elementos del programa augústeo, desde la perspectiva de la parte oriental del Mediterráneo.ABSTRACT: The figure of Dionysius of Halicarnassus is a privileged case for the study of Roman ecumenism, if we consider that it is a concept received from Greek civilization and strengthened thanks to Roman imperialism, which to a large extent served as the basic theme of his historiographical work. In the formation of the Principality, seen from Greek culture, Dionysius of Halicarnassus becomes a spokesman for the legacy that takes into account the tradition of Rome as a Greek city. In Dionysius the elements of the Augustan program are synthesized in a single ideologically formed image, from the perspective of the eastern Mediterranean.
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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.
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Inclusion of models to describe severe accident conditions in the fuel simulation code DIONISIO
Energy Technology Data Exchange (ETDEWEB)
Lemes, Martín; Soba, Alejandro [Sección Códigos y Modelos, Gerencia Ciclo del Combustible Nuclear, Comisión Nacional de Energía Atómica, Avenida General Paz 1499, 1650 San Martín, Provincia de Buenos Aires (Argentina); Daverio, Hernando [Gerencia Reactores y Centrales Nucleares, Comisión Nacional de Energía Atómica, Avenida General Paz 1499, 1650 San Martín, Provincia de Buenos Aires (Argentina); Denis, Alicia [Sección Códigos y Modelos, Gerencia Ciclo del Combustible Nuclear, Comisión Nacional de Energía Atómica, Avenida General Paz 1499, 1650 San Martín, Provincia de Buenos Aires (Argentina)
2017-04-15
The simulation of fuel rod behavior is a complex task that demands not only accurate models to describe the numerous phenomena occurring in the pellet, cladding and internal rod atmosphere but also an adequate interconnection between them. In the last years several models have been incorporated to the DIONISIO code with the purpose of increasing its precision and reliability. After the regrettable events at Fukushima, the need for codes capable of simulating nuclear fuels under accident conditions has come forth. Heat removal occurs in a quite different way than during normal operation and this fact determines a completely new set of conditions for the fuel materials. A detailed description of the different regimes the coolant may exhibit in such a wide variety of scenarios requires a thermal-hydraulic formulation not suitable to be included in a fuel performance code. Moreover, there exist a number of reliable and famous codes that perform this task. Nevertheless, and keeping in mind the purpose of building a code focused on the fuel behavior, a subroutine was developed for the DIONISIO code that performs a simplified analysis of the coolant in a PWR, restricted to the more representative situations and provides to the fuel simulation the boundary conditions necessary to reproduce accidental situations. In the present work this subroutine is described and the results of different comparisons with experimental data and with thermal-hydraulic codes are offered. It is verified that, in spite of its comparative simplicity, the predictions of this module of DIONISIO do not differ significantly from those of the specific, complex codes.
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Treinta y Tres stratigraphic terrain: ex Cuchilla Dionisio terrain. Uruguay
International Nuclear Information System (INIS)
Bossi, J.
2010-01-01
From 1998 we are discussing if the eastern area of ZCSB is an allochtonous block named TCD or if it belongs to Dom Feliciano belt with an age of 500 - 700 Ma. This crustal block is difficult to study because Laguna Merin Graben cut it in two around 4000 k m2 crustal fragments distant s more de 100 km between them. Southern block which was named T PE by Masquelín (2006) was demonstrated as allochtonous by Bossi and Gaucher (2004) destroying the Cdf model but seriously complicating the stratigraphic terminology. It is proposed to do some changes in order to profit the general agreement about allochtomy. The CDT with change by Treinta y Tres terrane; T PE become sub - terrain Punta del Este; sub - terrain Cuchilla Dionisio for the septetrional block. From 1998 we are discussing if the eastern area of ZCSB is an allochtonous block named TCD or if it belongs to Dom Feliciano belt with an age of 500 - 700 Ma. This crustal block is difficult to study because Laguna Merín Graben cut it in two around 4000 k m2 crustal fragments distant s more de 100 km between them. Southern block which was named T PE by Masquelín (2006) was demonstrated as allochtonous by Bossi and Gaucher (2004) destroying the CDF model but seriously complicating the stratigraphic terminology. It is proposed to do some changes in order to profit the general agreement about allochtomy. The CDT with change by Treinta y Tres terrain; TPE become sub - terrain Punta del Este; sub - terrain Cuchilla Dionisio for the septetrional block
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Energy Technology Data Exchange (ETDEWEB)
Soba, Alejandro, E-mail: soba@cnea.gov.ar; Denis, Alicia
2015-10-15
Highlights: • A new version of the DIONISIO code is developed. • DIONISIO is devoted to simulating the behavior of a nuclear fuel rod in operation. • The formerly two-dimensional simulation of a pellet-cladding segment is now extended to the whole rod length. • An acceptable and more realistic agreement with experimental data is obtained. • The prediction range of our code is extended up to average burnup of 60 MWd/kgU. - Abstract: The version 2.0 of the DIONISIO code, that incorporates diverse new aspects, has been recently developed. One of them is referred to the code architecture that allows taking into account the axial variation of the conditions external to the rod. With this purpose, the rod is divided into a number of axial segments. In each one the program considers the system formed by a pellet and the corresponding cladding portion and solves the numerous phenomena that take place under the local conditions of linear power and coolant temperature, which are given as input parameters. To do this a bi-dimensional domain in the r–z plane is considered where cylindrical symmetry and also symmetry with respect to the pellet mid-plane are assumed. The results obtained for this representative system are assumed valid for the complete segment. The program thus produces in each rod section the values of the temperature, stress, strain, among others as outputs, as functions of the local coordinates r and z. Then, the general rod parameters (internal rod pressure, amount of fission gas released, pellet stack elongation, etc.) are evaluated. Moreover, new calculation tools designed to extend the application range of the code to high burnup, which were reported elsewhere, have also been incorporated to DIONISIO 2.0 in recent times. With these improvements, the code results are compared with some 33 experiments compiled in the IFPE data base, that cover more than 380 fuel rods irradiated up to average burnup levels of 40–60 MWd/kgU. The results of these
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International Nuclear Information System (INIS)
Soba, Alejandro; Denis, Alicia
2015-01-01
Highlights: • A new version of the DIONISIO code is developed. • DIONISIO is devoted to simulating the behavior of a nuclear fuel rod in operation. • The formerly two-dimensional simulation of a pellet-cladding segment is now extended to the whole rod length. • An acceptable and more realistic agreement with experimental data is obtained. • The prediction range of our code is extended up to average burnup of 60 MWd/kgU. - Abstract: The version 2.0 of the DIONISIO code, that incorporates diverse new aspects, has been recently developed. One of them is referred to the code architecture that allows taking into account the axial variation of the conditions external to the rod. With this purpose, the rod is divided into a number of axial segments. In each one the program considers the system formed by a pellet and the corresponding cladding portion and solves the numerous phenomena that take place under the local conditions of linear power and coolant temperature, which are given as input parameters. To do this a bi-dimensional domain in the r–z plane is considered where cylindrical symmetry and also symmetry with respect to the pellet mid-plane are assumed. The results obtained for this representative system are assumed valid for the complete segment. The program thus produces in each rod section the values of the temperature, stress, strain, among others as outputs, as functions of the local coordinates r and z. Then, the general rod parameters (internal rod pressure, amount of fission gas released, pellet stack elongation, etc.) are evaluated. Moreover, new calculation tools designed to extend the application range of the code to high burnup, which were reported elsewhere, have also been incorporated to DIONISIO 2.0 in recent times. With these improvements, the code results are compared with some 33 experiments compiled in the IFPE data base, that cover more than 380 fuel rods irradiated up to average burnup levels of 40–60 MWd/kgU. The results of these
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Susana E. Freire
2011-06-01
Full Text Available Se mencionan los siguientes nuevos registros de Asteráceas para la provincia de Catamarca, Argentina: Baccharis acaulis, B. boliviensis var. latifolia, B. flexuosa, B. glutinosa var. angustissima, B. stenophylla (Tribu Astereae, Eupatorium patens var. tomentosum (Tribu Eupatorieae, Cosmos bipinnatus, C. peucedanifolius var. peucedanifolius, Helianthus annuus (Tribu Heliantheae, Gamochaeta erythractis, G. longipedicellata, Gnaphalium lacteum, Tessaria integrifolia var. integrifolia (Tribu Inuleae, Chuquiraga ruscifolia (Tribu Mutisieae, Senecio crepidifolius, S. subulatus var. subulatus, Xenophyllum incisum var. incisum (Tribu Senecioneae. Se citan además el hábitat de los taxones y las provincias fitogeográficas que integran. Se propone una nueva combinación, Baccharis glutinosa Pers. var. angustissima (DC. Giuliano.The following Asteraceae are mentioned for the province of Catamarca: Baccharis acaulis, B. boliviensis var. latifolia, B. flexuosa, B. glutinosa var. angustissima, B. stenophylla (Tribe Astereae, Eupatorium patens var. tomentosum (Tribe Eupatorieae, Cosmos bipinnatus, C. peucedanifolius var. peucedanifolius, Helianthus annuus (Tribe Heliantheae, Gamochaeta erythractis, G. longipedicellata, Gnaphalium lacteum, Tessaria integrifolia var. integrifolia (Tribe Inuleae, Chuquiraga ruscifolia (Tribe Mutisieae, Senecio crepidifolius, S. subulatus var. subulatus, Xenophyllum incisum var. incisum (Tribe Senecioneae. The habitat and phytogeographic provinces of the taxa are mentioned. The following new combination is proposed: Baccharis glutinosa Pers. var. angustissima (DC. Giuliano.
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International Nuclear Information System (INIS)
Soba, A; Denis, A; Lemes, M; Gonzalez, M E
2012-01-01
During the latest ten years the Codes and Models Section of the Nuclear Fuel Cycle Department has been developing the DIONISIO code, which simulates most of the main phenomena that take place within a fuel rod during the normal operation of a nuclear reactor: temperature distribution, thermal expansion, elastic and plastic strain, creep, irradiation growth, pellet-cladding mechanical interaction, fission gas release, swelling and densification. Axial symmetry is assumed and cylindrical finite elements are used to discretized the domain. The code has a modular structure and contains more than 40 interconnected models. A group of subroutines, designed to extend the application range of the fuel performance code DIONISIO to high burn up, has recently been included in the code. The new calculation tools, which are tuned for UO 2 fuels in LWR conditions, predict the radial distribution of power density, burnup and concentration of diverse nuclides within the pellet. New models of porosity and fission gas release in the rim, as well as the influence of the microstructure of this zone on the thermal conductivity of the pellet, are presently under development. A considerable computational challenge was the inclusion of the option of simulating the whole bar, by dividing it in a number of axial segments, at the user's choice, and solving in each segment the complete problem. All the general rod parameters (pressure, fission gas release, volume, etc.) are evaluated at the end of every time step. This modification allows taking into account the axial variation of the linear power and, consequently, evaluating the dependence of all the significant rod parameters with that coordinate. DIONISIO was elected for participating in the FUMEX III project of codes intercomparison, organized by IAEA, from 2008 to 2011. The results of the simulations performed within this project were compared with more than 30 experiments that involve more than 150 irradiated rods. The high number
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Cambrian horses in the field Dionisio Blade (Uruguay)
International Nuclear Information System (INIS)
Bossi, J.; Gaucher, C.
2010-01-01
The shear zone of Sierra Ballena (ZCSB) , is considered the western boundary of an allochthonous block by most writers from the definition of Land Blade Dionisio. The same method to the northern block NE of the city of Thirty- Three was applied. The geological map at 1:100,000 and 1:40,000 photogeology supported by field observations 140 covers an area of 3500 km2, allowed 525 Ma to discover that simultaneously produce sinistral megashear N30E, 80E and a mount (horse Amarillo ) with convergence towards the NNW . The megashear consists proto and ultramylonites petrológicamente being identical to ZCSB and age < 532 Ma The horse varies by rock type . On Micaela mica schist are ridden by gneisses and migmatites . In the center, the gneisses are rolled every few inches in W are ultramylonites sub - horizontal . The simultaneity of both phenomena is unexplained by head-on collision of cratons and explained by tangential collision from the SSE with tectonic transport to the north , representing a naturalistic aloctonía test
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Pobreza y trasnformaciones económicas en Catamarca y Tucumán (1980-2002
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Osatinsky, Ariel
2009-01-01
Full Text Available In the beginning of the 21st century Catamarca and Tucumán were showing important differences in social and economic level. While the first, with a more reduced and tradicional productive structure, had the less percentage of poor homes in the whole “Norte Grande Argentino”, Tucumán suffered major levels of poverty, being its economy the most developed of the north of the country. Having in mind that the poverty is intimately related to the economy, the present article is trying to analyze the characteristics of the poverty in Tucumán and Catamarca in 2001, and to investigate about the relations which existed between the differential levels of privation in both provinces and the transformations which suffered their respective productive structures in the last decades of the 20th century.
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International Nuclear Information System (INIS)
Soba, Alejandro; Denis, Alicia
2013-01-01
This presentation is intended to summarize the results obtained with DIONISIO within the frame of the FUMEX III exercise. From that list we selected those cases that fall within the scope of our code and excluded examples oriented to loss of coolant accidents, like FIO 131, Mt4 and Mt6, or to reactivity initiated accidents, like NSRR, or to oxidation and creep behavior of the cladding under variable stress conditions, like E110 or IFA 585. The models contained in DIONISIO permit the prediction of the temperature distribution in the pellet, cladding and gap, the elastic and plastic stress and strain, creep, swelling and densification, release of fission gases, cesium and iodine to the internal free volume of the rod, gas mixing, pressure increase, irradiation growth of the Zircaloy cladding, development of an oxide layer and hydrogen uptake on the waterside surface, restructuring and grain growth in the pellet. The effects of an internal or external corrosive atmosphere (SCC) as well as the possibility of pellet-cladding interaction (PCI) and crack propagation are also considered. Among the several models included in the code, we consider that two merit some more attention: the thermal description of the gap, since it is determinant of the quality of the simulation of pellet-cladding interaction, and the model of mechanical contact between them designed to predict the failure conditions of the cladding. A summary of both is given below. The participation of our code in the FUMEX III exercise prompted the development of the tools necessary to simulate the fuel behavior in the high burnup range. On the one hand, a subroutine was included in DIONISIO designed to give the radial distribution of the Pu and U isotopes that play a role in the absorption and capture of neutrons in the fuel. As a result, the local distribution of burnup can be obtained with the code. On that basis, the dependence of the thermal conductivity with burnup was included. The code is two
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Virginia Ramallo
2011-12-01
Full Text Available En todas las sociedades se encuentran múltiples maneras de clasificar la ascendencia y descendencia de cada persona. Además de los vínculos establecidos desde el nacimiento y de los adquiridos, las relaciones de parentesco tienen un correlato biológico que permite definir linajes. Se emplearon técnicas de análisis molecular para caracterizar el perfil genético de la comunidad de Azampay, Catamarca. Los objetivos fueron establecer porcentajes y aportes diferenciales de componentes americanos y extra-americanos en esta población con mezcla génica, reconstruir su historia migratoria y cotejar los linajes moleculares con genealogías basadas en registros oficiales y relatos orales. Entre los haplogrupos masculinos, 88 % tuvieron procedencia foránea, mientras que 100% de los antepasados femeninos fueron amerindios. La migración laboral es una estrategia económica establecida, estando la crianza de nietos a cargo de sus abuelos. Es la vía de introducción de nuevos linajes moleculares, sin registrar siempre un correlato en la cantidad de apellidos.Em todas as sociedades humanas encontran-se diversas maneiras de classificar a ascendência e descendência de cada pessoa. Além das ligações estabelecidas no nascimento e das adquiridas ao longo da vida, as relações familiares têm um correlato biológico que permite definir linhagens. Nosso trabalho apresenta resultados obtidos por meio de técnicas de análise molecular visando caracterizar o perfil genético da atual comunidade de Azampay, Catamarca. Os objetivos principais foram determinar os diferentes componentes e aportes das linhagens americanss e extra-americanos nesta população mestiça, reconstruir a história migratória y comparar essas linhagens moleculares com as genealogias basadas em registros oficiais e histórias orais. Entre os haplogrupos masculinos, 88% tiveram origem forânea, enquanto que 100% dos antepassados femininos foram ameríndios A migração laboral
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EL IMPACTO DESIGUAL DE LAS TRANSFORMACIONES ECONÓMICAS EN CATAMARCA Y TUCUMÁN (1980- 2002
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Ariel Osatinsky
2013-01-01
Full Text Available En el Noroeste argentino (NOA, Catamarca y Tucumán son dos provincias cuyo análisis adquiere un interés particular: la primera de ellas, con una estructura productiva más reducida y tradicional, mostraba a comienzos del siglo XXI el menor porcentaje de pobres de todo el norte del país, mientras que la segunda, a pesar de poseer la economía más desarrollada del NOA, tenía niveles más elevados de pobreza. Partiendo del supuesto que existe un fuerte vínculo entre la pobreza y la economía, y teniendo presente que las transformaciones económicas no se realizaron a un ritmo similar ni tampoco impactaron de un modo semejante en todas las provincias, la presente investigación analiza la evolución y las características que tuvieron las estructuras productivas de Catamarca y Tucumán entre 1980 y 2002. En particular, se examinan los cambios que atravesaron las actividades agropecuarias, la industria, el comercio y los servicios de ambas provincias.
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Ejercicios espirituales y trascendencia en Dionisio Areopagita
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José María Nieva
2002-01-01
Full Text Available La figura de Dionisio Areopagita es enigmática desde su origen y este enigma se ha acrecentado con el paso del tiempo. En su obra convergen la filosofía neoplatónica y el cristianismo, dando origen a una extraña simbiosis que plantea a sus intérpretes graves interrogantes. Este trabajo se propone indagar el camino apofático de acceso al Principio de todas las cosas. Para ello recurre a los tres primeros parágrafos del capítulo uno de De Mystica Teologia. Se pregunta cuáles son los ejercicios espirituales que subyacen en el texto y adónde conducen. Concluye mostrando que la finalidad de dichos ejercicios es la conciencia aguda de una Trascendencia que escapa a toda categorización humana.There is an enigmatic image of Dyonisius Areopagite from his origin, and that enigma has become more profound with time. In his work coalesce neo-platonic philosophy with Christianity and, as a result, there is a strange symbiosis which have produced unsolved questions by his interpreters. This paper analyzs the negative path that leads to the Principle of all things. In order to accomplish this task, I will work with the first three paragraphs of the first chapter of De Mystica Theologia. I will consider the spiritual exercises that underlies in the text and where they point at. The paper concludes by showing that the purpose of those exercises is the sharp consciencie of a Trascendence that escapes all human categorization
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Family strategies against the jesuits in colonial Argentina: Catamarca, 1683-1767
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Jorge Troisi Melean
2012-11-01
Full Text Available Based on a lawsuit, I will conduct a detailed study of the strategies of Catamarca´s colonial settlers to deal with Society of Jesus, the most powerful institution of the time.Three families were fighting for survival in a small colonial town in a middle of intercontinental fight between a forceful Spanish Crown and a hesitant Catholic Church. In the gaps of that struggle, each family negotiated their identity against a multiplicity of interests in play, seeking the best of possibilities in a world that was rapidly changing.
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Composición corporal en escolares de la provincia de Catamarca, Argentina
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Lomaglio, Delia Beatriz
2005-01-01
Full Text Available Por primera vez se estimó la composición corporal de niños en edad escolar de la provincia de Catamarca, utilizando las ecuaciones propuestas por Gurney y Jellife (1973, Siri (1961 y Slaughter et al (1988 fundamentadas en la estima de la densidad corporal y los pliegues adiposos subcutáneos. También se calcularon otros parámetros nutricionales como el IMC y diversas relaciones que reflejan la distribución del perfil de grasa. La muestra fue de 5497 niños y niñas entre 5 y 15 años de edad, de siete departamentos provinciales. Las mediciones fueron realizadas entre 1980 y 2000, lo que facilitó, además, un análisis secular de la variabilidad de los parámetros estudiados. Los resultados obtenidos se han contrastado con los correspondientes a otros grupos humanos previamente estudiados con idéntica metodología. Por lo que respecta en concreto al sobrepeso y obesidad calculado a partir de los criterios de Cole et al (2000 cabe mencionar que la prevalencia de ambas condiciones malnutritivas es considerablemente inferior a la registrada hasta el momento para la mayoría de los países latinoamericanos utilizando protocolos basados en el IMC. Concretamente la proporción actual es en Catamarca de un 7% de sobrepeso y un 2% de obesidad, habiéndose observado que la tendencia secular al aumento de ambas condiciones, ha sido muy leve en los últimos veinte años.
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Lucas Christel
2013-11-01
Full Text Available During the last decade in Argentina, the growth of open pit mining has faced strong social resistance and provincial laws prohibiting such activity. This work aims to analyse the ways in which the different subnational political regimes and economic systems impact upon the possibility of incidence of social resistance on provincial mining legislation, looking at the cases of Cordoba and Catamarca.
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Caracterización de manantiales del departamento Ancasti en la provincia de Catamarca (Argentina)
Denim, Pablo; l Instituto Nacional de Tecnología, Estación Experimental Agropecuaria Catamarca, Ruta 33- Km 4,5. Valle Viejo, Catamarca, Argentina.; Cano, Laura; Instituto Nacional de Tecnología, Estación Experimental Agropecuaria Catamarca, Ruta 33- Km 4,5. Valle Viejo, Catamarca, Argentina.; Castro, Ornella; l Instituto Nacional de Tecnología, Estación Experimental Agropecuaria Catamarca, Ruta 33- Km 4,5. Valle Viejo, Catamarca, Argentina.
2015-01-01
Las poblaciones de la provincia de Catamarca, Argentina no tienen acceso al agua o el acceso es muy precario. Entre estas poblaciones se encuentran las de El Huayco, El Arbolito y El Puesto Nuevo, en el departamento Ancasti, donde cada familia y una escuela de la zona poseen su propia vertiente. En estos lugares se realizaron obras de captación de agua, a fin de que cada familia y la escuela tengan disponibilidad de este recurso. Con el objetivo de conocer la calidad del agua de abastecimient...
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Ariel Osatinsky
2013-01-01
Full Text Available En 2001 Catamarca era la provincia con menores niveles de pobreza de todo el norte argentino. Por el contrario en Tucumán, cuya economía era la más dinámica de la región, era mayor el porcentaje de hogares pobres. Teniendo en cuenta que entre los procesos económicos y la pobreza existe un fuerte vínculo, y que las dificultades laborales son un componente importante en dicha relación, en este artículo se analiza de qué manera los menores niveles de pobreza en Catamarca fueron consecuencia de que su población resultó menos afectada que la tucumana por las transformaciones productivas regresivas y los problemas de empleo del periodo.
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The Cambrian cavalcades in the Cuchilla Dionisio sub ground. Uruguay
International Nuclear Information System (INIS)
Bossi, J.
2010-01-01
Most tratadistes consider that Sierra Ballena shear zone (SBSZ) is the western limit of an all octon block after the paper of Boss i and Gauche r (2004) showing a detailed geological map. The same method was applied to sporulation block in the Ne of Treinta y Tres city. It was obtained a 1/100.000 geological map with photo geology and 140 field data in an area of 3500 k m2. This document allowed to discover two kinds of mega - faults put in action at the same time (about 525 Ma): a mega shear zone N30E80E with proto - to ultramylonites similar to SBSZ and a regional thrust fault with vergence to NNW. The thrust fault has different features according to the affected type of rocks. At La Micaela, the mica schists are thrust ed by gneisses and migmatites. To the N W the gneisses became firstly sharply laminated and then, horizontal ultramylonites. Both kind of faulting produced at the same time may not be explained by an orthogonal collision and instead of it, is a naturalist proof of tangential collision and alcoholisation nature of the crustal block. In order to easily understand the new proposal it is necessary to change Paso del Dragón fm by Micaela fm, Cuchilla Dionisio Terrane by Treinta y Tres; Punta del Este Terrane by Punta del Este sub - terrane
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Susana Assandri
2010-12-01
Full Text Available La cultura Aguada en el Valle de Ambato, Catamarca, adquiere una manifestación particular que se observa a nivel espacial por la gran cantidad y variedad de las unidades de asentamiento, tanto por sus características externas, como emplazamiento en el terreno y relación con recursos hídricos, como por sus características internas. En este trabajo se intenta avanzar en el análisis espacial, que habíamos enfocado en las características internas de las estructuras construidas en el Valle, para ahondar en la relación de éstas con su espacio geográfico, como una de las manifestaciones espaciales de las relaciones entre los seres humanos y su ambiente.La propuesta es que a través del análisis de la visibilidad, de cada una de las estructuras, genere un aporte al conocimiento de los factores que contribuyen a su emplazamiento en el terreno. Palabras Clave: Aguada; análisis espacial; visibilidad; estructuras; emplazamiento. AbstractAguada culture in Ambato valley, Catamarca, acquires a particular manifestation observed spatially by the large number and variety of settlement units by their external characteristics such as location in relation to land and water resources, and its internal characteristics. It attempts to advance in spatial analysis; we had focused on the internal characteristics of the structures built in the Valley, to deepen their relations with their geographical space as a spatial manifestation of the relationship between humans and their environment. The proposal is that through the analysis of visibility, each of the structures, contribute to the knowledge of the factors contributing to its location in the field. Keywords: Aguada, spatial analysis, visibility, structures, location.
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Julieta Lynch
2015-09-01
Full Text Available El siguiente trabajo tiene como objetivo profundizar el conocimiento sobre las actividades que se desarrollaron en el sitio Villavil, localizado al norte del valle de Hualfín, provincia de Catamarca, Argentina. Se analizaron las características tecnomorfológicas y funcionales de los conjuntos cerámicos, como así también del material lítico asociado a la producción cerámica de uno de los recintos que conforman el sitio (Recinto Rectangular 1. Los resultados obtenidos han permitido profundizar acerca de las distintas etapas de producción cerámica y de los elementos líticos que habrían participado en su proceso de manufactura. ENGLISH: The main objective of this paper is to improve the knowledge of the ancient activities in the site of Villavil, located in the northern Hualfin Valley, Catamarca, Argentina. The techno-morphology, functional ceramic characteristics, and lithic material associated to ceramic production from one structure forming the archaeological site (Rectangular Structure 1 has been analyzed. These results have helped to better understand the different stages of ceramic production and the lithic elements that would have been part of the manufacturing process.
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Verónica Puente
2014-11-01
Full Text Available En este trabajo se presentan los resultados obtenidos en los estudios de procedencia de conjuntos cerámicos recuperados en dos asentamientos conglomerados del valle del Bolsón (Belén, Catamarca, Argentina vinculados a ocupaciones del tardío prehispánico (ca. 900-1600 DC. Las muestras estudiadas corresponden principalmente a cerámica pintada en negro sobre rojo reconocida como de estilo Belén, en menor medida ordinaria y excepcionalmente negro sobre crema y ante. Se complementaron análisis petrológicos y análisis por activación neutrónica instrumental realizados a la alfarería y a materias primas adecuadas para la producción alfarera muestreadas en la región. Se concluye que un grupo mayoritario de piezas fueron elaboradas con arcillas y arenas procedentes de la región bajo estudio. Asimismo, se destacan similitudes composicionales entre la vajilla recuperada en ambos asentamientos a pesar de las diferencias logísticas y estratégicas de emplazamiento. Los resultados generados son un importante aporte al tema de la producción alfarera a escala suprarregional dado que evidencian la coexistencia de distintos locus de producción cerámica en el oeste catamarqueño durante el lapso temporal estudiado. Palabras clave: cerámica, tardío prehispánico, procedencia, análisis de activación neutrónica, petrografía. Abstract The results obtained in the study of the provenance of ceramic recovered in two conglomerates settlements of the valley of El Bolsón (Belén, Catamarca, Argentina linked to prehispanic late occupations (ca. 900-1600 AD are given. The samples analyzed correspond mainly to Belén style ceramic, in lesser frequency to ordinary, and exceptionally to black over cream and beige. This study combined petrological and neutron instrumental activation analysis made in both kind of samples, archaeological pottery and local raw materials. It is concluded that a majority of archaeological pottery were made with clay and
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Alvaro Rodrigo Martel
2004-01-01
Full Text Available En el presente trabajo hemos abordado el estudio de la producción del arte rupestre del sitio Cacao 3 Cc3- (Antofagasta de la Sierra, Catamarca con relación a las prácticas socioculturales de grupos agropastoriles del periodo Formativo Temprano en la Puna meridional argentina, haciendo hincapié en el emplazamiento del sitio y su asociación contextual con las demás evidencias arqueológicas conocidas para el área de estudio y estableciendo las relaciones entre las manifestaciones rupestres de Cc3 con las de otros sitios, a nivel micro y macrorregional, a través de indicadores estilísticos
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Susana Assandri
2010-10-01
Full Text Available Aguada culture in Ambato valley, Catamarca, acquires a particular manifestation observed spatially by the large number and variety of settlement units by their external characteristics such as location in relation to land and water resources, and its internal characteristics. It attempts to advance in spatial analysis; we had focused on the internal characteristics of the structures built in the Valley, to deepen their relations with their geographical space as a spatial manifestation of the relationship between humans and their environment. The proposal is that through the analysis of visibility, each of the structures, contribute to the knowledge of the factors contributing to its location in the field.
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Guillermo E. Terán
2017-06-01
Full Text Available ABSTRACT A new species of Astyanax is described from the arheic system of Río Sucuma, in Catamarca, Northwestern Argentina. The new species is distinguished from its congeners by a combination of characters including the presence of a broad vertical humeral spot, absence of maxillary teeth, and absence of circuli in posterior field of scales. Furthermore, this species is distinguished by the orbital diameter, head length, branched anal-fin rays, perforated lateral-line scales, transverse scales, dentary teeth with abrupt decrease in size. This species is, to date, the single known fish endemic of Río Sucuma basin.
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Liliana M. Manzi
2008-05-01
Full Text Available Se presenta un diagnóstico socio-ambiental realizado en la comunidad de Antofagasta de la Sierra, Provincia de Catamarca, Argentina, siendo tomados en consideración las unidades sociales de producción, los rebaños, las pasturas disponibles y los patrones de uso y tenencia de la tierra. Se pretende identificar y evaluar la incidencia del actual uso del espacio sobre el medio natural y discutir las iniciativas oficiales de desarrollo económico para este sector de la Puna argentina.
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Zalba, Patricia Eugenia; Zagorodny, Nora; Balesta, Bárbara; Morosi, Martín Eduardo
2002-01-01
En este trabajo se analizan muestras minerales clasificadas como "pigmentos" (Wolters F. m.s.) halladas en contextos funerarios en el cementerio de La Aguada (Depto. de Belén, Prov. de Catamarca). Este materialforma parte de la Colección Benjamín Muniz Barreto del Museo de La Plata. Las tumbas excavadas totalizan doscientas. En doce unidades de entierro se registraron diecisiete muestras de "pigmentos" presentando algunos de ellos, evidencias de haber sido amasados en forma de panes. Se reali...
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Julieta Lynch
2016-06-01
Full Text Available El objetivo del siguiente trabajo se centra en el análisis macroscópico y en estudios petrográficos microscópicos realizados sobre materiales líticos arqueológicos recuperados de los sitios Villavil y Villavil 2 (Hualfín, Catamarca, Argentina. Los resultados obtenidos permitieron identificar las materias primas utilizadas en la manufactura de artefactos asociados a ocupaciones del periodo de Desarrollos Regionales/Inka (ca. 900 al 1400 d. C. y, en base a la información geológica de la zona, se realizaron observaciones acerca de su posible procedencia. Esto permitió discutir las hipótesis planteadas con anterioridad acerca de las prácticas relacionadas con su aprovisionamiento. ENGLISH: The main objective of this study is the macroscopic and microscopic petrographic analysis of lithic materials recovered from the sites of Villavil and Villavil 2 (Hualfín, Catamarca, Argentina. The results obtained from this analysis allowed for the identification of the raw materials used in the manufacture of artifacts associated with Regional Developments/Inka Period (ca. 900 to 1400 A.D. occupations. Based on regional geological information, we are able to posit the source locations of these raw materials. This allows for a discussion of previous hypotheses regarding practices of lithic procurement in the area.
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Metalogénesis de la veta Farallón Negro rama norte, Farallón Negro, provincia de Catamarca
Martínez, Facundo; Fogliata, Ana; Montenegro, Nicolás; Hagemann, Steffen
2014-01-01
La veta Farallón Negro Rama Norte forma parte del yacimiento Farallón Negro ubicado en Hualfín, Departamento Belén, Catamarca. Este yacimiento se encuentra dentro del Complejo Volcánico Farallón Negro de edad terciaria, que constituye la roca de caja de un sistema de vetas rico en oro. La veta Farallón Negro Rama Norte tiene rumbo general N40°O e inclinación de 65° NE, tiene una corrida de 600 m, y se extiende desde la superficie hasta unos 400 m en profundidad. La roca de caja es una monzoni...
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Alejandra M. Elías
2013-07-01
Full Text Available En distintos sectores de la microrregión de Antofagasta de la Sierra (Provincia de Catamarca, Puna Meridional Argentina se registran afloramientos de vulcanitas (rocas volcánicas con proporciones de vidrio menores a 80%, sensu Aschero et al. 2002/2004 macroscópicamente muy similares. Con el objetivo de diferenciarlas y aportar, de esta forma, a su identificación en el registro arqueológico, se aplicaron diversos métodos y técnicas sobre muestras de estas rocas procedentes de los distintos afloramientos. En esta instancia, se exponen los resultados obtenidos a partir de caracterización geoquímica por medio de Fluorescencia de Rayos X de Energía Dispersiva. Las vulcanitas procedentes de los diferentes afloramientos tienden a presentar disímiles concentraciones de ciertos elementos. Estos resultados son prometedores y estimulan a continuar investigando la aplicación de métodos geoquímicos en la diferenciación y determinación de la procedencia de estas rocas volcánicas. Cabe destacar que en el Noroeste Argentino los métodos geoquímicos fueron exclusivamente aplicados sobre una roca volcánica específica, la obsidiana, y aún no habían sido utilizados en otras rocas volcánicas anisótropas, con superficies, texturas y estructuras más irregulares. Abstract In different sectors of the Antofagasta de la Sierra micro-region (Catamarca Province, Southern Argentine Pune outcrops of macroscopically very similar vulcanites (volcanic rocks with ratios of glass below 80%, sensu Aschero et al. 2002/2004 have been recorded. In order to differentiate between these and contribute to their identification in the archaeological record, various methods and techniques were applied to samples of these rocks. In this instance, the initial results obtained from geochemical characterization, through Energy Dispersive X-ray Fluorescence, are presented. The vulcanites from different outcrops tend to show different concentrations for some elements
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Sonia Lanzelotti
2015-12-01
Full Text Available RESUMEN Se presentan modelos de aptitud para el desarrollo de la agricultura prehispánica y actual en un sector del valle de Santa María (Catamarca, Argentina, a través de la aplicación de técnicas de evaluación multicriterio con Sistemas de Información Geográfica. La base cartográfica fue conformada a partir de imágenes satelitales en combinación con mapas de elaboración acerca de unidades geomorfológicas, provincias fitogeográficas, hidrografía y áreas con evidencia arqueológica de agricultura prehispánica. Se observó que el área con mayor potencial para la agricultura se ubica en el sector pedemontano de la sierra del Aconquija, seguido por el fondo de valle. Este patrón coincide principalmente con el registro arqueológico prehispánico, pero no con la distribución espacial de las explotaciones agrícolas actuales. La relación entre la sociedad y la naturaleza, mediatizada a través de la tecnología, se presenta como la clave de interpretación. ABSTRACT This study was performed with the objective to identify suitable areas for development of pre-Hispanic and contemporary agriculture in Santa Maria Valley (Catamarca, Argentina through the application of multicriteria evaluation techniques using Geographic Information Systems. The base map was based on data obtained from satellite images in combination with thematic maps specially prepared about geomorphological units, phytogeographic provinces, hydrography and areas with archaeological evidence of prehispanic agriculture. It was observed that the area with the greatest potential for agriculture is located in the piedmont sector of the Aconquija mountain, followed by the bottom of the valley. This pattern coincides mainly with the pre-Hispanic archaeological record, but not with the spatial distribution of existing farms. The relationship between society and nature, mediated through technology, is presented as the key to interpretation
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Campos comuneros en el valle de Hualfín (Catamarca. Antecedentes, problemática y situación actual
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Bernarda Zubrzycki
2002-01-01
Full Text Available En este artículo nos proponemos caracterizar el régimen de tenencia de la tierra de tres campos comuneros ubicados en el valle de Hualfín, específicamente en el Distrito La Ciénaga (Catamarca, Argentina, así como indagar el origen y evolución de algunas de las poblaciones actualmente presentes en ellos. Estos campos tienen su antecedente en las mercedes de tierra otorgadas por la corona durante la época colonial; a través del tiempo se fueron vendiendo, heredando y donando derechos y acciones de uso sobre los mismos, dando lugar a una compleja situación jurídica respecto a la propiedad. Aún hoy ningún habitante de las poblaciones analizadas en este trabajo ha iniciado juicios sucesorios, deslindes o mensuras para prescripciones adquisitivas, legitimando en muchos casos su derecho a la tierra a través del parentesco con los primeros propietarios.
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M. Zamorano
2017-09-01
Full Text Available Nopachtus coagmentatus was recognized by Ameghino in 1888. Holotype comes from Brochero Formation (Montehermosan - Chapadmalalan [early Pliocene - late Pliocene], near to Villa Cura Brochero (Córdoba. First find of this species for the Catamarca Province is reported. Remains found are described, its provenance detailed and the corresponding stratigraphic log is presented. The mentioned material, came from Salicas Formation, cropping out in the paraje Suri Yaco, consists of 14 osteoderms of the dorsal region of the carapace attributed to N. coagmentatus, 12 complete and 2 fragmented corresponding to the media and posterodorsal region of the carapace. These osteoderms present a central figure surrounded by two row of peripheral figures, and figures that would correspond to a third row, always incomplete. The first row has between 10 and 12 figures and the second between 19 and 22; the figures are pentagonal or, mainly, hexagonal. In turn, all specimens known today for this genus, that included two species, is revised. Until this communication, only two reliable records, and several doubtful were recognized for N. coagmentatus; while for N. cabrerai Zamorano, Scillato-Yané, Gonzalez Ruiz & Zurita only the holotype was given to known.
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Jorge Guillermo Ortiz
2012-11-01
Full Text Available Se presenta el análisis integrado del conjunto arqueofaunístico, constituido por vertebrados e invertebrados, del sitio Peñas Coloradas 3-cumbre (PC3-c, Antofagasta de la Sierra (Catamarca, Argentina. El sitio se localiza en la cumbre de un farallón de ignimbrita y está conformado por estructuras arquitectónicas asignadas a momentos Tardíos-Incas, algunas de las cuales han sido reutilizadas hasta principios del siglo XX. Con la finalidad de complementar los datos y reconstruir la historia tafonómica de los conjuntos faunísticos, se estudió el contexto sedimentario mediante métodos físico-químicos (textura; pH; determinación de albúmina, P y MO. Los materiales analizados brindaron datos sobre algunas de las actividades realizadas en las estructuras, el consumo de animales, temporalidad, estacionalidad de las ocupaciones, y sobre los procesos diagenéticos actuantes. La integración contextual de los datos materiales analizados y del emplazamiento del sitio y sus estructuras, nos permite inferir prácticas sociales diferenciadas entre las estructuras con cubierta y sin cubierta. Las primeras, se vinculan a depósitos de alimentos y manufacturas, mientras que las segundas se asocian con prácticas residenciales, procesamiento y consumo de alimentos. Abstract In this paper, an integrated analysis of archaeofaunal data consisting of vertebrates and invertebrates of the Peñas Coloradas 3-summit (PC3-c, Antofagasta de la Sierra (Catamarca, Argentina is conducted. The site is located at the top of an ignimbrite hill and is composed of architectural structures attributed to Late Inca times, some of which had been re-used until the early 20th century. In order to complement the data and reconstruct the taphonomic history of the faunal assemblages, we studied the sedimentary context by physicochemical methods (texture, pH, determination of albumin, P and MO. The material tested has provided data on some of the activities in the structures
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International Nuclear Information System (INIS)
Pla, Rita R.; Ratto, N.; Fuente, Guillermo de la
1999-01-01
This paper deals with the archaeological aspects of the work that has been done under the Contract ARG 9393, part of the IAEA Co-ordinated Research Program (1997-2000). The proposed working plan is included in a frame project of the Archaeological School of the University of Catamarca: Chaschuil Archaeological Project (PACh). This is an interdisciplinary project of regional archaeology, which carries out research in the Argentine southern Puna. Its goal is to explain land use, focusing on the study of both environmental and artifactual variability. In order to accomplish these goals, the project comprises a variety of techniques, including paleoenvironmental, ecological, geomorphologic, geo archaeological, taphonomical and resource provenance studies. Together with archaeological data, they provide the basis for models about mobility and exchange among past societies in the southern Puna (Ratto 1997, 1998)
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Mariana Dantas
2012-06-01
Full Text Available En este trabajo se dan a conocer los estudios etnográficos llevados a cabo en el valle de Ambato, Catamarca, Argentina, los cuales estuvieron destinados a explorar diferentes aspectos de la práctica agrícola. Para ello, se indagó sobre el número de individuos involucrados en estas tareas, el rendimiento económico de los recursos vegetales cultivados y los costos y beneficios implicados en las distintas etapas de la cadena operativa. Los datos reunidos fueron sumados luego a los obtenidos a partir de trabajos similares realizados sobre recursos vegetales silvestres. Se pusieron a prueba a través de la utilización del modelo de programación lineal, tratando así de indagar sobre cuál podría haber sido la combinación óptima con la que cada uno de estos recursos habría contribuido a la dieta de los antiguos habitantes del valle. Los resultados alcanzados permitieron plantear que en estos espacios, durante los siglos VI al XI d. C., los productos derivados de la recolección, fundamentalmente el algarrobo (Prosopis sp., habrían constituido la mejor opción posible. Mientras que dentro de los productos derivados de la agricultura, el maíz (Zea mays habría sido la mejor elección. Estos datos coinciden con lo observado en el registro arqueológico del valle y con el caudal informativo que se cuenta para la región. ENGLISH: In this paper the authors report results of the ethnographic studies conducted in the Ambato Valley, Catamarca, Argentina, which were designed to explore different aspects of agricultural practice. To this end, data were collected in three areas: the number of individuals involved in these tasks, the economic performance of cultivated plant resources and the costs and benefits involved in the different stages of the operational chain. The data collected were then added to those obtained from similar works carried out on wild plant resources. They were tested using the linear programming model, thus trying to
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Germán G. Figueroa
2015-01-01
Full Text Available En este artículo se presenta la información obtenida de los estudios fitolíticos efectuados en el sedimento de dos estructuras agrícolas prehispánicas, situadas en la vertiente occidental del Valle de Ambato, Catamarca, Argentina. Los trabajos realizados se focalizaron en tratar de determinar las especies vegetales cultivadas y en evaluar la importancia que pudieron tener estos cultivos en un contexto social no igualitario como el registrado en la región estudiada. Los resultados logrados permiten plantear que en dichas estructuras se practicó el cultivo exclusivo de maíz (Zea mays asociado a la cría de animales domésticos (Lama glama. La producción intensiva y localizada de este tipo de cultivo, en un contexto como el de Aguada de Ambato, signado por una desigualdad social creciente, pudo haber constituido una de las estrategias a la hora de establecer y reproducir en el tiempo relaciones no igualitarias. ENGLISH: In this article we present information from studies of phytoliths from sediment collected from two pre-Hispanic farming structures located on the western side of the Ambato Valley, Catamarca, Argentina. The work focused on trying to determine what plant species were cultivated and assess the importance that these crops may have had in a non-egalitarian social context. The results suggest that maize (Zea mays crop, associated with the breeding of domestic animals (Lama glama, was performed exclusively in these structures. In a context such as Aguada, Ambato Valley, which was marked by increasing social inequality, intensive and localized production of this crop could have been one of the strategies for establishing and maintaining inegalitarian relations.
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Virginia Lynch
2011-12-01
Full Text Available Es bien sabido que el Imperio inca (Tawantinsuyu, a medida que se extendía, iba anexionando territorios y poblaciones muy disímiles unas de otras. Para ello, habría utilizado diversas tácticas políticas y económicas. A pesar de esta estrategia, la anexión de nuevos territorios habría producido algunos cambios estructurales en las poblaciones locales, que contaban con mecanismos sociales, políticos y económicos propios. En el presente trabajo, se intenta indagar acerca de la relación establecida entre los pobladores locales del valle de Hualfín (Catamarca, Argentina y los objetivos planteados por el Imperio en dicha región. Para ello, se analizó el material lítico recuperado, tanto superficial como estratigráficamente, del sitio Hualfín Inka con el fin de reconstruir, junto con los resultados del análisis del resto de los materiales rescatados, la funcionalidad de este sitio y su relación con el paisaje sociopolítico para el período de ocupación incaica del Noroeste argentino. ENGLISH: It is well known that the Inca Empire (Tawantinsuyu, as it expanded, annexed new territories and populations very dissimilar to each other. For this reason, the Inca administration likely used diverse political and economical strategies. Due to this implementation policy, annexation would have caused certain structural changes in local populations that already had different social, political and economic characteristics. In this study we explore the relationship between local residents of Hualfín Valley (Catamarca, Argentina and the objectives set by the Inca Empire in the region. For this purposes, we analyzed the lithic assemblage recovered from both surface and stratigraphic contexts from the site of Hualfín Inka. Based on the analysis of the lithic assemblage and that of other artifacts recovered at the site, our aim is to reconstruct the site’s function and its relationship to the sociopolitical landscape at the time of the Inca
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International Nuclear Information System (INIS)
Fogliata, A. S.; Rubinstein, N. R.; Avila, J. C.; Baez, M.
2008-01-01
The Fiambala range is located in the central south part of the province of Catamarca, Western Sierras Pampeanas, Argentina. It is largely conformed by Precambrian metamorphic rocks, a Cambrian granitic intrusive, Ordovician basic and ultra basic rocks and epi zonal Carboniferous granites (Los Ratones, El Salto and Ayacucho Granites). The Carboniferous granites are sub alkaline, weakly peraluminous, high silica (except for the porphyritic facies of Los Ratones granite) and moderately enriched in K. Contents of trace elements and REE indicate that El S alto and Ayacucho granites and the granular facies of Los Ratones granite have characteristics of evolved and differentiated granite associated with hydrothermal systems. The variations of trace elements, particularly Sn, W, U, Rb, Ba, Zr and Sr suggest that they correspond to granites with mineralization potential. Genetically linked to these granites there are Sn, W, U and minor base metals greisen deposits. The hydrothermal process that yield to these deposits involved two main alteration stages, beginning with alkali metasomatism follow by greissenization. According to the isotopic ages the hydrothermal processes postdate about 1 Ma the magmatic activity. The analyses of the granites and the associated greisen deposits confirm that the post orogenic carboniferous magmatism is the major metallogenetic control of the ore deposits from the studied area. This metallogenetic control could be a useful tool in prospecting similar deposits in the rest of the Western Sierras Pampeanas. (Author)
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Lorena B. Rodríguez
2004-12-01
Full Text Available La memoria social no es un mero reflejo de los hechos del pasado, sino una compleja construcción en la que tanto recuerdos individuales como colectivos, experiencias pasadas y situaciones presentes se intrincan inexorablemente. La memoria, entendida en esos términos, se constituye en un campo ideal para preguntar acerca de los diferentes sentidos que se le asignan al pasado desde o para el presente y analizar, por ende, las tensiones y disputas que tales asignaciones conllevan. En esta línea de trabajo, el objetivo del artículo es abordar el complejo proceso de atribuciones de sentido acerca del pasado que diferentes sectores y actores de la población del Dto. de Santa María (Pcia. de Catamarca realizan en la actualidad y, a la vez, reflexionar sobre algunas cuestiones teóricas que se desprenden del caso expuesto, en particular en torno a la idea del pasado como un recurso ilimitado pasible de ser usado por cualquier persona en cualquier momento.The social memory is not a mere reflection of the past events but a complex construction in which individual and colective memories, past experiences and current situations are inexorably mixed up. Memory, in that sense, became an ideal field to ask about the different meanings assigned to the past, from or for the present; thus allowing us to analize the tensions and disputes generated in this attributions. The aim of this paper is to approach the complex process by which different sectors and actors of Santa María district (Catamarca's province assign meanings to the past and, at the same time, to think about some theoretical subjects extracted of this case, particularly around the idea of the past as an unscared resource capable of being used by anyone at any moment.
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Pérez de Rosas, Alicia R; Segura, Elsa L; Fichera, Laura; García, Beatriz Alicia
2008-07-01
The genetic structure in populations of the Chagas' disease vector Triatoma infestans from six localities belonging to areas under the same insecticide treatment conditions of Catamarca province (Argentina) was examined at macrogeographical and microgeographical scales. A total of 238 insects were typed for 10 polymorphic microsatellite loci. The average observed and expected heterozygosities ranged from 0.319 to 0.549 and from 0.389 to 0.689, respectively. The present results confirm that populations of T. infestans are highly structured. Spatial genetic structure was detectable at macrogeographical and microgeographical levels. Comparisons of the levels of genetic variability between two temporal samples were carried out to assess the impact of the insecticide treatment. The genetic diversity of the population was not significantly affected after insecticide use since different genetic parameters (allele number, observed and expected heterozygosities) remained stable. However, loss of low frequency alleles and not previously found alleles were detected. The effective population size (N(e)) estimated was substantially lower in the second temporal sample than in the first; nevertheless, it is possible that the size of the remnant population after insecticide treatment was still large enough to retain the genetic diversity. Very few individuals did not belong to the local T. infestans populations as determined by assignment analyses, suggesting a low level of immigration in the population. The results of the assignment and first-generation migrant tests suggest male-biased dispersal at microgeographical level.
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Parasitosis intestinales en relación con la cultura higiénica de poblaciones rurales de Catamarca.
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Monferrán, M. C.
2003-01-01
Full Text Available Los estudios realizados sobre prevalencia de parasitosis intestinales humanas en comunidades urbanas y rurales en la provincia de Catamarca, revela altos índices. Las causas son múltiples, entre las que se encuentran factores ecológicos y sociales. Las condiciones climáticas imperantes en una zona geográfica resultaran favorables o no a la presentación de algunas parasitosis como por ejemplo las geohelmintiasis.Se atribuye igual importancia a la educación, vivienda, alimentación, recursos económicos, falta de higiene, contaminación ambiental, etc.. Se realizan estudios de prevalencia de parasitosis intestinales en pobladores de dos regiones climáticamente diferentes de nuestra provincia como son los Dptos. La Paz y Paclín detectándose en algunas comunidades índices altos de hasta el 81 %.También se ha notado la influencia climática regional sobre la distribución de las parasitosis intestinales .En La Paz, existe un predominio de las protozoosis y en Paclín las geohelmintiasis son frecuentes y diversas. Las parasitosis detectadas estarían relacionadas en un alto grado a la denominada cultura higiénica, pues las prácticas de la higiene individual y familiar, la deposición de sus excretas, la convivencia con animales domésticos, el manejo de sus rebaños, son costumbres regionales que se han transmitido por generaciones e influyen notablemente en la difusión y la conservación de estos altos índices de parasitosis intestinales en detrimento de la salud de los habitantes.
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Claudia Lozano
2007-06-01
Full Text Available Este artículo refiere a la canonización popular de María Soledad Morales en la provincia argentina de Catamarca. El análisis focaliza en tres aspectos. En primer lugar, en las circunstancias sociales y políticas que dieron lugar a la muerte trágica de la joven María Soledad Morales en manos de una pandilla integrada por varones jóvenes vinculados al poder político en Argentina a comienzos de la década de 1990. En segundo lugar, en las narrativas religiosas y culturales utilizadas por la población para otorgar significado social a un delito común, como la violación seguida de muerte. Focalizar en rituales y narrativas religiosas revela como la población de las provincias del noroeste de Argentina elabora la muerte violenta de un miembro de la sociedad local como un acontecimiento histórico relacionado a las desigualdades de género y de clase en Argentina. En tercer lugar, el análisis tuvo en cuenta asimismo la manera en la cual la interacción entre medios orales, escritos y audiovisuales de expresión favorecierón la inscripción del hecho como un acontecimiento relevante de la historia política provincial y nacional.
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Crecimiento y nutrición de la población infanto-adolescente de Azampay (Catamarca
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Padula, Gisel
2004-01-01
Full Text Available A partir de 1995 se constituyó un grupo multidisciplinario, que desarrolló sus investigaciones en la localidad de Azampay (Catamarca, abordando el estudio integral de la problemática bio-socio-cultural de las comunidades actuales y arqueológicas con el objetivo de caracterizar procesos de largo plazo. La elección de la localidad de Azampay se realizó en función de su claro rol estratégico a nivel arqueológico, como proveedor de alimentos durante el Período de Desarrollos Regionales, así como por el tamaño reducido de la población actual y su localización fuera de las rutas de comunicación habituales, que la convierten en óptima para realizar estudios sobre población total, minimizando el sesgo que un muestreo provoca. El objetivo es realizar una selección de aquellos trabajos desarrollados en relación al Crecimiento y Nutrición de la población infanto-adolescente de Azampay y sus alrededores. Se realizó la evaluación nutricional a través del establecimiento de los indicadores P//E, T//E y P//T, se estudió el dimorfismo sexual a partir de la morfometría craneofacial y se caracterizó la salud bucal y dieta, con la obtención del Perfil Patológico Dental de cada individuo. Así, la población infanto-adolescente presenta: 1.- Un alto porcentaje de individuos distróficos, siendo en su mayor parte niños emaciados; 2.- Ausencia de diferencias craneofaciales significativas entre ambos sexos, indicando un fuerte estrés nutricional y 3.- Altas frecuencias de fluorosis y gingivitis y frecuencias medias a bajas de periodontitis y caries, evidenciando una disminución en el componente agrícola, junto con deficiencias vitamínicas y falta de higiene dental.
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DEFF Research Database (Denmark)
Dionisio, Giuseppe; Brinch-Pedersen, Henrik; Welinder, Karen Gjesing
2011-01-01
Wheat (Triticum aestivum L.) possesses preformed phytase activity in the grain that is essential to make phosphate available to cell metabolism and in food and feed (Brejnholt S. et al., 2011). Cereals contain the purple acid phosphatase type of phytases, PAPhy (Dionisio G. et al., 2011a). Mature......., Skov L. Brinch-Pedersen H. (2011). The degradation of phytate by microbial and wheat phytases is dependent on the phytate matrix and the phytase origin. J. Sci. Food Agri. (in press). Dionisio G., Madsen C.K., Holm P.B., Welinder K.G., Jørgensen M., Stoger E., Arcalis E., Brinch-Pedersen H. (2011a......) Cloning and Characterization of Purple Acid Phosphatase Phytases from Wheat (Triticum aestivum L.), Barley (Hordeum vulgare L.), Maize (Zea maize L.) and Rice (Oryza sativa L.). Plant Physiol. [in press, Jan 10, Epub ahead of print] Dionisio G., Brinch-Pedersen H., Welinder K.G., Jørgensen M. (2011b...
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Bárbara Martínez
2016-01-01
Full Text Available Objetivo: Identificar los procesos de salud y enfermedad entre los pobladores de El Cajón (Catamarca, Argentina y su vinculación con la biomedicina. Asimismo, estudiar las ar - ticulaciones entre la biomedicina y el sistema de salud tradicional. Materiales y métodos: Investigación cualitativa, mediante un abordaje etnográfico en el que la observación participante, la corresidencia y las entrevistas abiertas de sesiones múltiples cumplen un rol primordial. La pesquisa se ha centrado en los pobladores locales que regularmente asisten a la posta sanitaria, los enfermeros, los agentes sanitarios y los miembros del equipo de salud itinerante. La población total del lugar es aproximadamente 235 habitantes. Resultados: Se ha constatado que los procesos de salud y enfermedad no se limitan al cuerpo humano, sino que también en ellos intervienen el paisaje y los seres que lo pueblan. Se ha identificado que en la resolución de numerosas patologías resulta central la figura del especialista ritual. Se ha determinado que la gente valora y utiliza la biomedicina, aunque la asistencia a la institución hospitalaria suele ser rehuida. Conclusiones: Se ha identificado un uso combinado de ambos sistemas. En él influyen las valoraciones de las personas sobre la enfermedad de que se trate, pero también otros factores como la distancia hasta el centro asistencial y las relaciones interpersonales con los profe - sionales de la salud. Se resalta la relevancia del enfoque cualitativo para dar cuenta de las especificidades de las categorías locales, que resultan esquivas para un abordaje construido a partir de conceptos derivados del dualismo cartesiano.
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Traforti, Anna; Massironi, Matteo; Zampieri, Dario; Carli, Cristian
2015-04-01
Remote sensing techniques have been extensively used to detect the structural framework of investigated areas, which includes lineaments, fault zones and fracture patterns. The identification of these features is fundamental in exploration geology, as it allows the definition of suitable sites for the exploitation of different resources (e.g. ore mineral, hydrocarbon, geothermal energy and groundwater). Remote sensing techniques, typically adopted in fault identification, have been applied to assess the geological and structural framework of the Laguna Blanca area (26°35'S-66°49'W). This area represents a sector of the south-central Andes localized in the Argentina region of Catamarca, along the south-eastern margin of the Puna plateau. The study area is characterized by a Precambrian low-grade metamorphic basement intruded by Ordovician granitoids. These rocks are unconformably covered by a volcano-sedimentary sequence of Miocene age, followed by volcanic and volcaniclastic rocks of Upper Miocene to Plio-Pleistocene age. All these units are cut by two systems of major faults, locally characterized by 15-20 m wide damage zones. The detection of main tectonic lineaments in the study area was firstly carried out by classical procedures: image sharpening of Landsat 7 ETM+ images, directional filters applied to ASTER images, medium resolution Digital Elevation Models analysis (SRTM and ASTER GDEM) and hill shades interpretation. In addition, a new approach in fault zone identification, based on multispectral satellite images classification, has been tested in the Laguna Blanca area and in other sectors of south-central Andes. In this perspective, several prominent fault zones affecting basement and granitoid rocks have been sampled. The collected fault gouge samples have been analyzed with a Field-Pro spectrophotometer mounted on a goniometer. We acquired bidirectional reflectance spectra, from 0.35μm to 2.5μm with 1nm spectral sampling, of the sampled fault rocks
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Crecimiento y nutrición de la población infanto-adolescente de Azampay (Catamarca
Directory of Open Access Journals (Sweden)
Padula, Gisel
2003-01-01
Full Text Available A partir de 1995 se constituyó un grupo multidisciplinario, que desarrolló sus investigaciones en la localidad de Azampay (Catamarca, abordando el estudio integral de la problemática bio-socio-cultural de las comunidades actuales y arqueológicas con el objetivo de caracterizar procesos de largo plazo. La elección de la localidad de Azampay se realizó en función de su claro rol estratégico a nivel arqueológico, como proveedor de alimentos durante el Período de Desarrollos Regionales, así como por el tamaño reducido de la población actual (300 individuos y su localización fuera de las rutas de comunicación habituales, que la convierten en óptima para realizar estudios sobre población total, minimizando el sesgo que un muestreo provoca. Esta condición posibilita trabajar con mayor profundidad analítica proporcionando mejor comprensión sobre: ocupación del espacio; migración; organización familiar; propiedad de la tierra y el agua; crecimiento y desarrollo de la población infantil. Todos éstos, temas que pueden ser referidos y comparados con otras comunidades pertenecientes a la región. La siguiente presentación, tiene por objeto, realizar una selección de aquellos trabajos desarrollados en relación al Crecimiento y Nutrición de la población infanto-adolescente de Azampay y sus alrededores. Se realizó la evaluación nutricional a través del establecimiento de los indicadores P//E, T//E y P//T; se estudió el dimorfismo sexual a partir de la morfometría craneofacial; y se caracterizó la salud bucal y dieta, con la obtención del Perfil Patológico Dental de cada individuo. Así, la población infanto-adolescente de Azampay y sus alrededores, presenta: 1- Un alto porcentaje de individuos distróficos, siendo en su mayor parte niños emaciados, seguido por aquellos con desnutrición actual y luego los desmedrados; 2- Ausencia de diferencias craneofaciales significativas entre ambos sexos, indicando un fuerte estr
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Norma Ratto
2014-01-01
Full Text Available En este trabajo se presentan los análisis realizados sobre las asociaciones arqueobotánicas recupera - das en dos contextos funerarios del oeste de Tinogasta (Catamarca, Argentina. Los sitios Las Champas y Bebé de La Troya presentan macrorrestos vegetales junto a inhumaciones que permiten indagar el rol de dichos restos y sus implicancias dentro de las sociedades tardías catamarqueñas. Nuestro objetivo es caracterizar las prácticas sociales que intervinieron en el depósito de restos de plantas como acom - pañamiento funerario, al identificar la presencia de marcas diagnósticas de procesamiento culinario en dichos restos, que además son identificados taxonómicamente. En ambos sitios tanto los macrorrestos como los sedimentos asociados fueron analizados a ojo desnudo, lupa binocular y microscopio óptico. Las muestras fueron identificadas taxonómicamente siguiendo la descripción de caracteres diagnósticos botánicos y etnoarqueológicos para prácticas de procesamiento. En el sitio Las Champas se recuperaron semillas de Cucurbita aff. maxima subsp. maxima y Chenopodium quinoa var. melanospermum con rasgos de procesamiento, como así también un artefacto confeccionado sobre Lagenaria siceraria . Los análisis microscópicos dieron por resultado la presencia de gramíneas y cf. Zea mays . En Bebé de la Tro - ya se identificaron también semillas de Cucurbita aff. maxima subsp. maxima y endocarpos de Prosopis sp., sin marcas de procesamiento. Los resultados obtenidos permiten sugerir la presencia de restos de plantas como simientes, comidas y vestimenta, formando parte del contexto funerario. Estas tres formas de depósito vegetal demuestran prácticas intencionales diferentes durante las inhumaciones como así también permiten indagar en el aspecto culinario y agrario de las sociedades tardías catamarqueñas.
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Federico Miguel Bobillo
2015-06-01
Full Text Available En este trabajo se abordan las canteras y talleres asociados de Punta de la Peña, Quebrada Seca y Pampa Oeste, en Antofagasta de la Sierra (Catamarca, con el objeto de explorar la multiplicidad de actividades y prácticas sociales involucradas en la utilización de dichas fuentes. Se trata de tres fuentes de vulcanitas intensamente explotadas a lo largo de la secuencia prehispánica del área. De esta forma, se toma a las canteras no sólo como un depósito de rocas útiles para la subsistencia, sino como un escenario social donde confluyen y se materializan diferentes prácticas y expresiones sociales. Así, a la explotación de las rocas se suman toda una serie de tareas vinculadas, por ejemplo, con prácticas de enseñanza/aprendizaje y actividades de subsistencia, procesamiento/consumo y rituales. Esta aproximación considera a las canteras desde una perspectiva orientada a abordar las elecciones y prácticas llevadas a cabo por los agentes en contextos de aprovisionamiento, partiendo de la base de que estos actúan desarrollando una diversidad de actividades conectadas en torno a la apropiación de un recurso específico.Abstract Quarries and workshops at Punta de la Peña, Quebrada Seca and Pampa Oeste (Antofagasta de la Sierra, Catamarca are considered in this paper. The goal is to explore the multiplicity of social activities and practices involved in the use of these quarries. These three vulcanite sources were intensively exploited during the pre-Hispanic history of the region. In this way, quarries are not only considered rock deposits useful for subsistence, but also a social scenario where different social practices and social expressions converge and are materialized. Thereby, series of linked tasks are added to rock exploitation. For example, teaching/learning practices and subsistence, processing/consumption and ritual activities. This approach considers quarries from a perspective oriented to the analysis of elections and
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Valeria Palamarczuk
2015-12-01
Full Text Available Se expone una estrategia de trabajo en la que convergen dos líneas de la práctica arqueológica actual: los rescates arqueológicos y el estudio de colecciones de museos. Luego de una breve presentación de la categoría arqueológica “Hualfín”, se presentan tres rescates de entierros en “urnas Hualfín”, realizados en el marco de estudios de impacto arqueológico en las localidades de Los Nacimientos y La Ciénaga del Medio, en el valle de Hualfín, provincia de Catamarca. Las tres urnas son comparadas, mediante un ejercicio de morfometría estadístico, con una muestra de 77 urnas “Hualfín” y “Shiquimil” relevadas en museos. Los ejemplares que componen la muestra provienen de los valles de Hualfín, Yocavil, del Cajón y Andalgalá. La comparación con la base de datos contribuye a la contextualización regional de las urnas rescatadas y a la observación de tendencias estéticas compartidas con el conjunto. Los tres fechados radiocarbónicos obtenidos por AMS permiten ubicar a los eventos funerarios entre los siglos XI y XII y aportan a la discusión sobre la cronología del conjunto. AbstractWe present a working strategy which integrates two lines in the current archaeological practice: archaeological rescues and study of museum collections. After a brief presentation of the archaeological category "Hualfín" three burials rescues in "Hualfín urns" are presented. The rescues were carried out in the frame of archaeological impact studies made in the towns of Los Nacimientos and La Cienega del Medio, in the Hualfín valley, Catamarca province. The three urns are compared, by a statistical morphometric exercise, with a sample of 77 "Hualfín" and "Shiquimil" urns registered in museums. The specimens come from the valleys of Hualfín, Yocavil, el Cajón and Andalgalá. The comparison with the database contributes to the regional contextualization of the three findings and to the observation of aesthetic trends shared with
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Apellidos y haplogrupos del cromosoma Y en 5 poblaciones del NOA
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Riccio, M. E.
2003-01-01
Full Text Available Se analizaron de forma preliminar muestras de sangre hospitalarias de donantes provenientes de la capital de las provincias de Catamarca (N=62, Salta (N=20, Tucumán (N=11. Las mismas fueron comparadas con datos preexistentes de la provincia de Jujuy (Quebrada de Humahuaca, N=28; San Salvador de Jujuy, N=16. Se estudiaron los linajes paternos, analizando la presencia de la transición C a T para el locus DYS199. Las frecuencias génicas del alelo DYS199 T muestran un gradiente decreciente: Quebrada de Humahuaca (0,64, San Salvador de Jujuy (0,31, Salta (0,25, Tucumán (0,18, y Catamarca (0,08. Las diferencias de las frecuencias sólo fueron significativas entre Catamarca y Salta (P<0,05, y Catamarca con Humahuaca y San Salvador (P<0,001. El apellido y el cromosoma Y son transmitidos por vía paterna. Al analizar la correlación entre ambos, en Catamarca, Salta y Tucumán, en promedio, el 2% de los apellidos americanos coincidieron con el haplogrupo americano, mientras que en Jujuy y Quebrada de Humahuaca lo hicieron en un 34%. De los individuos con haplogrupo amerindio fueron más frecuentes los de apellido aborigen en las poblaciones jujeñas (65 %, y los de apellido europeo en las restantes (83 %. Las diferencias significativas de frecuencia entre Jujuy y el resto de las provincias puede ser el producto de una historia de migraciones y mezcla génica originada a partir de la colonización española del NOA.
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Consumer Product Chemical Weight Fractions from Ingredient Lists
U.S. Environmental Protection Agency — Data and model predictions supporting the manuscript: Isaacs K.K., Phillips K.A., Biryol D., Dionisio K.L., and Price P. Consumer product chemical weight fractions...
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Exploring consumer exposure pathways and patterns of use for chemicals in the environment through the Chemical/Product Categories Database (CPCat) (Presented by: Kathie Dionisio, Sc.D., NERL, US EPA, Research Triangle Park, NC (1/23/2014).
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Simulation of the behaviour of nuclear fuel under high burnup conditions
International Nuclear Information System (INIS)
Soba, Alejandro; Lemes, Martin; González, Martin Emilio; Denis, Alicia; Romero, Luis
2014-01-01
Highlights: • Increasing the time of nuclear fuel into reactor generates high burnup structure. • We analyze model to simulate high burnup scenarios for UO 2 nuclear fuel. • We include these models in the DIONISIO 2.0 code. • Tests of our models are in very good agreement with experimental data. • We extend the range of predictability of our code up to 60 MWd/KgU average. - Abstract: In this paper we summarize all the models included in the latest version of the DIONISIO code related to the high burnup scenario. Due to the extension of nuclear fuels permanence under irradiation, physical and chemical modifications are developed in the fuel material, especially in the external corona of the pellet. The codes devoted to simulation of the rod behaviour under irradiation need to introduce modifications and new models in order to describe those phenomena and be capable to predict the behaviour in all the range of a general pressurized water reactor. A complex group of subroutines has been included in the code in order to predict the radial distribution of power density, burnup, concentration of diverse nuclides and porosity within the pellet. The behaviour of gadolinium as burnable poison also is modelled into the code. The results of some of the simulations performed with DIONISIO are presented to show the good agreement with the data selected for the FUMEX I/II/III exercises, compiled in the NEA data bank
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International Nuclear Information System (INIS)
Bossi, J.
2006-01-01
The possibility of having sufficient structural, geochronologic and geochemical data about the dykes and sills of Cuaro formation and the Corral de Piedra dyke swarm allowed to suggest the nature of the Mantle source and the injection process of each filonian set. Three units injected in the Gondwana continent were recognized: not outcropping Cuaro formation, at Piedra Alta Terrane; outcropping Cuaro Fm. in the Nico Perez Terrane, and the Corral de Piedra dyke swarm in the Cuchilla Dionisio terrane It was found different behavior in several important parameters in each one of them: mantelic source , melting percentage and crustal contamination. It may be concluded that Mantle nature and crust thickness and composition are different in each block, what supports. the idea that continental socle was constructed by amalgamation of different units of allocton provenence. When heat loss became difficult by the mega-continent consolidation, each fragment acted of different way. This represents a very strong argument favoring terrane Cuchilla Dionisio alloctony leaned to 525 Ma as regional geological mapping indicated
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Gerhard van der Linde (University of South Africa) Massimo ...
African Journals Online (AJOL)
User
Aurora Borealis è il libro di poesie pubblicato dall'Agorà Edizioni, Lo. Specchio di Dionisio, collana di testi poetici diretta da Angelo Tonelli. Il volume è diviso in cinque parti: “Invocazioni Artiche”, “Il viaggio”, “Ombre. Bianche”, “Artict Alaska” e “Principium Mundi”. Le poesie che formano “Invocazioni Artiche” sono pervase da.
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Translations on Narcotics and Dangerous Drugs, Number 317
1977-08-31
the command of Maj Camilo Gomez Bonilla arrested eight persons engaged in the cocaine and cocaine:paste traffic. The persons taken into custody... Pablo Morales Santanice, coordinator of the campaign against drug 117 trafficking in Durango, acknowledged the incident and said that...Dionisio Ocotepec, where a laboratory was destroyed. In the town of San Pablo Guila, another clandestine laboratory was found. And a Ford Maverick car
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Directory of Open Access Journals (Sweden)
Federico C. Ocampo
2007-12-01
Full Text Available The taxonomy of the genus Anomiopsoides Blackwelder is revised. The species A. catamarcae Martínez and A. aurita (Burmeister are placed in synonymy with A. heteroclyta (Blanchard. Anomiopsoides fedemariai sp. nov. is described from Argentina. The genus Anomiopsoides now consists of four species: A. biloba (Burmeister, A. cavifrons (Burmeister, A. fedemariai sp. nov. and A. heteroclyta (Blanchard. A key is presented for the identification of the species of Anomiopsoides.Se hace una revisión de la taxonomía del género Anomiopsoides Blackwelder. Las especies A. catamarcae Martínez y A. aurita (Burmeister son consideradas como sinónimos de A. heteroclyta (Blanchard. Se describe una especie nueva, A. fedemariai sp. nov., especie nueva de Argentina. El género Anomioposoides consiste ahora en cuatro especies, A. biloba (Burmeister, A. cavifrons (Burmeister, A. fedemariai sp. nov. y A. heteroclyta (Blanchard. Se presenta una clave para la identificación de las especies de Anomiopsoides.
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Oportunidades para el éxito de los modelos de retención de granos en Nicaragua
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Selmira Flores Cruz
2005-12-01
Full Text Available ESTE ARTÍCULO ANALIZA LOS MODELOS DE RETENCIÓN DE GRANOS (maíz que tienen el propósito de evitar pérdidas a los productores por bajos precios. Estas experiencias de comercialización se ponen en marcha con buenos deseos, guiados por el optimismo y la necesidad de generar cambios, pero no siempre parten de la dinámica y las reglas establecidas en el comercio de granos. Pregunta central: ¿Qué hace exitoso a un modelo de retención de granos para generar valor? Hipótesis: “El éxito está influenciado por la capacidad de aprendizaje e innovación organizacional en el establecimiento de alianzas estratégicas en el mercado, más que en obtener mejor precio”. Método utilizado: Estudio de casos analizando la experiencia de La Unión de Campesinos Organizados de San Dionisio en Matagalpa (UCOSD, Empresa Cooperativa de Granos (ECOGRANOS también de San Dionisio y La Empresa de Granos de Jalapa (EGRANOJAL.El trabajo comienza revisando el comportamiento de la producción de maíz en el área centroamericana en los últimos años; sigue una síntesis sobre la relación entre oferta y demanda en el país; y concluye analizando las experiencias de retención de granos.
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The non-nuclear legislation and the communal property
International Nuclear Information System (INIS)
Ciallella R, Norberto; Grancelli Cha, Nestor
1996-01-01
Since 1984, year in which the Bolson Municipality, Rio Negro province, declared the town a 'Non Nuclear Area', began to appear an abundant legislation that generically, it is know as 'Non Nuclear'. The provinces of Buenos Aires, Chubut, Formosa, La Pampa, Santa Cruz and Tierra del Fuego, have in their respective Constitutions non nuclear articles, while the provinces of Catamarca, Cordoba, Corrientes, Chaco, Entre Rios, Formosa, Rio Negro, San Luis, Santa Cruz, Santa Fe, Tierra del Fuego and Tucuman have sanctioned in their respective jurisdictions non nuclear laws. New projects of these laws are in consideration and treatment in the provinces of Catamarca, La Pampa, Mendoza, Santiago del Estero and Rio Negro. The present work compiles and analyzes the available information on this subject. Although the topic is not regulatory, it could have involved in the regulatory area in an eventual situation that could be presented between regulatory laws of federal and provincials reaches. This work describes the current situation and the probabilities consequences of the mentioned legislation. (author)
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The non-nuclear legislation and the communal property; La legislacion no nuclear y el bien comun
Energy Technology Data Exchange (ETDEWEB)
Ciallella R, Norberto; Grancelli Cha, Nestor
1996-07-01
Since 1984, year in which the Bolson Municipality, Rio Negro province, declared the town a 'Non Nuclear Area', began to appear an abundant legislation that generically, it is know as 'Non Nuclear'. The provinces of Buenos Aires, Chubut, Formosa, La Pampa, Santa Cruz and Tierra del Fuego, have in their respective Constitutions non nuclear articles, while the provinces of Catamarca, Cordoba, Corrientes, Chaco, Entre Rios, Formosa, Rio Negro, San Luis, Santa Cruz, Santa Fe, Tierra del Fuego and Tucuman have sanctioned in their respective jurisdictions non nuclear laws. New projects of these laws are in consideration and treatment in the provinces of Catamarca, La Pampa, Mendoza, Santiago del Estero and Rio Negro. The present work compiles and analyzes the available information on this subject. Although the topic is not regulatory, it could have involved in the regulatory area in an eventual situation that could be presented between regulatory laws of federal and provincials reaches. This work describes the current situation and the probabilities consequences of the mentioned legislation. (author)
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International Nuclear Information System (INIS)
Hockenreiner, M.; Sollner, F.; Miller, H
2001-01-01
The Sierra de Copacabana (Catamarca province, NW Argentina) hosts in its northernmost part a large shear zone, which can be traced back to the north into the Sa. de Fiambala and to the south at least into the Sa. de Velasco. Timing of mylonitization is an important puzzle-piece in order to understand Paleozoic geotectonic processes on the western border of Gondwana (au)
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Description of a new species of Perichaena (Myxomycetes from arid areas of Argentina
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Hernández-Crespo, Juan Carlos
2009-12-01
Full Text Available A new species of the myxomycete genus Perichaena is described in this paper. The new species, named Perichaena calongei, was found during intensive studies of arid areas of the Monte desert in Argentina. It has been found directly in the field from the provinces of Catamarca, La Rioja, Salta and San Juan, in the Northwest of Argentina, and isolated from moist chamber cultures of native plant species collected in Catamarca, Jujuy, Salta and San Juan. The characters that make this species unique in the genus are the combination of the morphology of the sporocarps, the structure and dehiscence of the peridium, and the ornamentation of the capillitium. The morphology of the my xo - mycete specimens was examined using light microscopy with Nomarski interference contrast, and scanning electron microscopy. Micrographs of relevant morphological characters are included. A key to facilitate the identification of the stipitate species of Perichaena is also proposed.
Se describe una nueva especie, Perichaena calongei, que fue encontrada en el desierto de Monte, en las zonas áridas del nor - oeste de Argentina. Los cuerpos fructíferos se encontraron fructificados en el campo, también se obtuvieron por cultivo en cámara húmeda de plantas recolectadas en las provincias de Catamarca, Jujuy, La Rioja, Salta y San Juan. La combinación de caracteres de la morfología del esporocarpo, de la estructura y tipo de dehiscencia del peridio, y de la ornamentación del capilicio, distinguen esta especie del resto de las conocidas en el género. La morfología de la especie se analizó con un microscopio óptico dotado de contraste interferencial de Nomarski y con un microscopio electrónico de barrido, se incluyen ilustraciones de las estructuras observadas. Se propone una clave dicotómica para la identificación, a nivel mundial, de las especies estipitadas del género Perichaena. -
Reproducción y dieta de Liolaemus koslowskyi Etheridge 1993
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Aun, Liliana
1998-01-01
Full Text Available Se describe el ciclo reproductivo y la dieta de una población de Liolaemus koslowskyi, de la localidad de Pomán, Departamento de Pomán, Catamarca, Argentina. Esta especie presenta un ciclo reproductivo estacional con dos posturas al año, en primavera y a principios del verano. El tamaño de la carnada es de 3-9 huevos por postura. La dieta tanto para machos como para hembras consiste en hormigas, coleópteros, hemípteros, larvas, pupas y arañas. Numéricamente las hormigas son las más abundantes y la mayor contribución en volumen es el de los coleópteros. The reproductive cycle and diet are described for a population Liolaernus koslowskyi studied at Pomán, Departamento Pomán, Catamarca, Argentina. This species has a seasonal reproductive cycle with egg production occurring in spring and early summer. Females may produce two clutches of eggs each year. Clutch size vares from 3-9 eggs and is correlated with female snout-vent length. The diet of males and females consists of ants, beetles, hemipterans, larvae, pupae, and spiders. Numerically, ants are most abundant in the diet whereas volumetrically, beetles contribute the most.
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Lagunas de saberes. Dios Mangüy San Dionisio del Mar
DEFF Research Database (Denmark)
2013-01-01
short thematic clips for use as didactic material for the teaching of the Indigenous language in local primary schools; - COSTUMBRE Y SABIDURÍAS: A short video by Chiara Bresciani on the preparation of food for festive/ritual events and an 11 mins video by Marta Iannetti on traditional midwifery ("Mi...... ndxuey ikojts - Nuestras parteras"); - FOTOGRAFÍAS: A slideshow of pictures taken in the village, with background music from local composer Obdulio Muriel; - LENGUA VIVA: The digital version of some of the drawings and other materials (two rhymes, a tale and a recipe) created by the children of local...
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Anello, M; Daverio, M S; Romero, S R; Rigalt, F; Silbestro, M B; Vidal-Rioja, L; Di Rocco, F
2016-02-01
The vicuña (Vicugna vicugna) was indiscriminately hunted for more than 400 years and, by the end of 1960s, it was seriously endangered. At that time, a captive breeding program was initiated in Argentina by the National Institute of Agricultural Technology (INTA) with the aim of preserving the species. Nowadays, vicuñas are managed in captivity and in the wild to obtain their valuable fiber. The current genetic status of Argentinean vicuña populations is virtually unknown. Using mitochondrial DNA and microsatellite markers, we assessed levels of genetic diversity of vicuña populations managed in the wild and compared it with a captive population from INTA. Furthermore, we examined levels of genetic structure and evidence for historical bottlenecks. Overall, all populations revealed high genetic variability with no signs of inbreeding. Levels of genetic diversity between captive and wild populations were not significantly different, although the captive population showed the lowest estimates of allelic richness, number of mitochondrial haplotypes, and haplotype diversity. Significant genetic differentiation at microsatellite markers was found between free-living populations from Jujuy and Catamarca provinces. Moreover, microsatellite data also revealed genetic structure within the Catamarca management area. Genetic signatures of past bottlenecks were detected in wild populations by the Garza Williamson test. Results from this study are discussed in relation to the conservation and management of the species.
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Directory of Open Access Journals (Sweden)
Eva Bulacio
2012-06-01
Full Text Available Tropaeolum tuberosum Ruiz et Pav. ssp. silvestre Sparre es una hierba rizomatosa trepadora que en Argentina fue encontrada en las Sierras de Calilegua (Jujuy y en áreas montanas de Catamarca, aunque de esta última localidad sólo se conoce un único e incompleto ejemplar. Habita quebradas húmedas, entre los 2.100 y 2.650 m s.n.m., en el límite superior del bosque montano. El tallo es grácil de hasta 3 m de largo y la porción subterránea está constituida por rizomas alargados y de hasta 1 cm de diámetro. Estas son las principales diferencias con la ssp. tuberosum, en la cual el tallo es más corto, erguido y desarrolla tubérculos bien definidos.Ecological features and distribution of Tropaeolum tuberosum ssp. silvestre (Tropaeolaceae in Argentina. Tropaeolum tuberosum Ruiz et Pav. ssp. silvestre Sparre is a rhizomatous climbing herb that in Argentina was found in the Sierras of Calilegua (Jujuy and Catamarca mountains, yet of this last locality only is known an one and incomplete specimen. It inhabits humid gorges, between 2100-2650 masl, in the upper limit of the montane forest. The slender stem reaches 3 meters in lenght and the underground portion shows elongated rhizomes up to 1 cm in diameter. These are the main differences with the ssp. tuberosum, in which the stem is shorter, erect and develop well-defned tubers.
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Cafrune, M M; Marín, R E; Rigalt, F A; Romero, S R; Aguirre, D H
2009-12-23
Faecal samples from llamas (n=708), vicuñas (n=171) and guanacos (n=4) were obtained between December 2004 and May 2009 in three Provinces of Northwest Argentina (Jujuy, Salta and Catamarca) to know the distribution, prevalence and intensity of Lamanema chavezi infection in these South American camelid species (SACs). Faeces were examined by a sedimentation-flotation technique using a Cl(2)Zn+ClNa solution (specific gravity=1.59). Eggs of L. chavezi occurred in 30.3% of 89 llama herds and in 18.5% of 708 llamas sampled with a mean intensity of 271.8 eggs/g (EPG) of faeces (range 20-2120). The highest values for all parameters of the infection were registered in llamas from Catamarca Province. Significant differences (P<0.001, Fisher's exact test) were detected only for the lower prevalence in llamas from Jujuy respect to those from the other two Provinces. The overall individual prevalence of L. chavezi in llamas was lower than in reports from adult domestic camelids of neighbour countries while mean intensity was higher. The individual prevalence of L. chavezi in guanacos was 75.0%, with a mean intensity of 66.0 EPG (range 40-120) while no vicuñas were detected as infected. Most of infected SACs were located at the phytogeographical region of Andean Patagonic Domain with a dispersion ranging between 22 degrees 10' and 26 degrees 40' South latitude.
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Hernán Clavijo Ocampo
1989-01-01
Full Text Available Siguiendo la trayectoria de don Luis Dionisio de Caicedo, un empresario colonial, se analizan dos aspectos trascendentales de la política económica en el Nuevo Reino: la desamortización de los bienes de los jesuítas y el establecimiento del monopolio comercial del aguardiente. Estos dos componentes económicos se relacionan con la crisis que llevaría a término el sistema colonial. Aunque este es un estudio de caso de carácter local, la provincia de Mariquita y la Villa de Purificación, se pone a prueba dichas conexiones, relacionadas directamente con la conducta política de este hacendado terrateniente, frente a la Revolución de Independencia.
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Recursos vegetales: uso, consumo y producción en la Puna meridional argentina (5000-1500 AP)
Aguirre, María Gabriela
2012-01-01
Esta investigación es una contribución al conocimiento sobre los recursos vegetales empleados en el pasado en la microrregión de Antofagasta de la Sierra (Catamarca, Argentina). Se aborda la gestión de los recursos vegetales en un lapso que se extiende entre aproximadamente los 5.000 a 1.500 años antes del presente. Se optó por un enfoque que permitiera contemplar las diferentes formas de relación entre los grupos humanos y las plantas y además que proporcionara una representación d...
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Linajes holandricos en tres poblaciones del NO Argentino
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Bailliet, Graciela
2005-01-01
Full Text Available Los marcadores bialélicos de la región específica del cromosoma Y han permitido identificar linajes propios de continentes, y a través de su distribución geográfica pueden reconstruirse movimientos migratorios de las poblaciones humanas. Se ha generado una filogenia confiable y se cuenta con una nomenclatura que facilita la interpretación de los resultados producidos en distintos laboratorios. En el presente trabajo se utilizaron 13 SNP seleccionados por estar presentes en las poblaciones originarias de América y en las parentales para los grupos inmigrantes recientes. El objetivo de este trabajo fue identificar el origen étnico de los linajes paternos de muestras de ADN provenientes de tres ciudades del NOA: Salta, Catamarca y Tucumán. Se identificaron 6 haplogrupos, los de origen europeo fueron los mayoritarios (67%; le siguió en frecuencia el haplogrupo propio de América (15%; también se observaron linajes YAP+ (7.5%. La distribución de la frecuencia de los haplogrupos diferenció a las muestras de Catamarca de las de Salta y Tucumán (P<0.001. La mayoría de los linajes moleculares propios de América se encontraron en muestras provenientes de individuos con apellidos foráneos (87.5. Esto refleja el efecto del largo contacto temporal entre las poblaciones nativas e inmigrantes recientes, así como la influencia cultural compleja en la trasmisión de los apellidos.
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Una aproximación a las políticas de poblamiento de Timoleón en Sicilia
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Víctor SÁNCHEZ DOMÍNGUEZ
2011-03-01
Full Text Available Azotada por conflictos civiles y étnicos, Diodoro, Plutarco y Nepote presentan una Sicilia devastada y despoblada a mediados del siglo IV a. C. Pese a su vitola de liberador y derrocador de tiranos, el corintio Timoleón promueve en Sicilia un movimiento de recolonización de vasto alcance del que forman parte desplazamientos forzados de población que recuerdan precisamente las prácticas de gobernantes autocráticos que le precedieron, como los Dinoménidas y Dionisio el Viejo. A través de las fuentes literarias, arqueológicas y numismáticas, este artículo valora la importancia y el calado de las políticas de poblamiento de Timoleón en Siracusa y en otros lugares de la isla.
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Horn, Maricel Yanina
2014-01-01
En esta Tesis Doctoral se presenta el estudio palinológico de dos unidades litológicas del Mioceno Tardío/Plioceno de Argentina: la Formación El Morterito (Aloformación Playa del Zorro) aflorante en el valle del Cajón, provincia de Catamarca y Formación Palo Pintado en el Valle Calchaquí, provincia de Salta. La sucesión Neógena del valle del Cajón fue primeramente descripta como Formación El Morterito, posteriormente se reconocieron tres Aloformaciones. Considerando las áreas de distribución ...
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Alina Alvarez Larrain
2010-12-01
Full Text Available El espacio arquitectónico se constituye como parte del paisaje cultural que participa de lleno en la construcción y reproducción de las prácticas domésticas y rituales y del imaginario colectivo de la comunidad que lo construye y lo habita. La localidad arqueológica de Andalhuala se presenta así como un área que nos permite abordar cómo fue la construcción y el uso del espacio en la vertiente oriental del valle de Santa María o Yocavil, cuyos patrones de asentamiento fueron anteriormente definidos a partir de lo conocido para el flanco occidental. Se discuten aquí las evidencias recuperadas a partir de tareas de prospección y relevamiento arquitectónico en la mencionada localidad. Los resultados obtenidos hasta ahora revelan un panorama complejo de ocupaciones desde los inicios del primer milenio D.C. hasta los finales de los tiempos tardíos, abarcando una franja espacial desde los terrenos bajos próximos a cuencas permanentes hasta los pisos inferiores de la Sierra del Aconquija.Palabras clave: Valle de Yocavil; localidad arqueológica de Andalhuala ; sociedades agropastoriles; paisajes arqueológicos; variabilidad de asentamientos.AbstractThe architectural space is set up as part of the cultural landscape is fully involved in the construction and reproduction of domestic and ritual practices and the collective imagination of the community that builds and inhabits it. The Andalhuala archaeological locality is thus presented as an area that allows us to consider what was the construction and use of space on the eastern slope of the valley of Santa Maria or Yocavil whose patterns of settlement were previouly identified from the known to the western flank. We discuss here the evidence recovered from prospecting and surveying architectural in the mentioned locality. The results so far indicate a complex picture of occupations since the beginning of the first millennium D.C. until the final of the late times, comprising a strip space from the lowlands near permanent basins to the lower floors of the Sierra del Aconquija.Keywords: Yocavil Valley; Andalhuala archaeological locality; agropastoral societies; archaeological landscape; variability of settlements.
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La Teología Mística de Pseudo Dionisio Areopagita: una nueva lectura
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Marcelo D. Boeri
2013-11-01
Full Text Available In this paper a new Spanish translation of the brief opuscule De mystica theologia (by the Christian Neoplatonic Pseudo Dyonisius Areopagita along with an introduction to the text are presented. The introduction focuses on the analysis of some points that are especially helpful to understand the text at issue: (i its history and its significance for the Neoplatonism and, more importantly, its relevance in terms of a highly original exposition of the Christian doctrine from a Neoplatonist viewpoint, (ii The importance of this text in Contemporary philosophy (Hegel, Heidegger, Wittgenstein is also noted and, finally, (iii its crucial significance for the so-called "negative theology".
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Neutron activation analysis for the archaeometric study of Catamarca pottery
International Nuclear Information System (INIS)
Pla, Rita R.; Moreno, Monica A.; Ratto, Norma R.
1999-01-01
Samples of pottery and raw materials from the Puna and the mesothermal valleys regions were irradiated in the RA-3 reactor for 5 hours and 22 elements (As, Ba, Ce, Co, Cr, Cs, Eu, Fe, Gd, Hf, La, Lu, Nd, Rb, Sb, Sc, Sm, Ta, Tb, Th, U and Yb) were determined by instrumental analysis, 37 days after the irradiation. The results allow drawing conclusions on the production and distribution of the pottery in the region. (authors)
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Arachania, A neo proterozoic magmatic arc and its fragments in south America and Africa
International Nuclear Information System (INIS)
Gaucher, C.; Bossi, J.; Frimmel, H.
2010-01-01
The name Arachania has been recently proposed for the block that comprises the Cuchilla Dionisio-Pelotas, Marmora, Tygerberg and correlative terranes at both sides of the south Atlantic, which is considered a fragment of the Kalahari Craton that a later stage (660-550 Ma) evolved into an active margin. The block played a key role in the amalgamation of southwestern Gondwana, which has been only recently recognized. Arachania is composed of three different lithotectonic elements: (1) a high-grade metamorphic basement of Namaquan age with evidence of older, Eburnean components that crop out mainly in southern Uruguay; (2) a voluminous calc alkaline granitic batholith s mostly within the 660-550 Ma age range, representing the roots of a Neo proterozoic magmatic arc; and (3) deep-water, turbiditic, Ediacaran sedimentary successions marking the eastern border of Arachania, often associated with mafic to ultramafic rocks
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Determination of filtrations and permeability of an earth dam
International Nuclear Information System (INIS)
Gomez, H.R.; Baro, G.B.; Gillen, Ricardo.
1975-11-01
The aim of this work was to measure with the aid of a radioactive tracer the speed flow of the water filtrating from Sumampa Dam in northeastern Catamarca, while being in operation, and with these data determine if the actual permeability corresponds to the projected one. Iodine-131 was used as tracer and periodical samples were taken from the down stream water in order to determine its activity concentration. In previous perforations ionic interchange resines were used so as to measure simultaneously the fixed Iodine-131. The permeability of the dam was calculated from the obtained speed based on time-concentration curves and applying Darcy formulas for permeability. (author) [es
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Polimorfismos de grupos sanguíneos en Cachi, Valle Calchaqui, Salta
Acreche, Noemí; Albeza, María V.; Caruso, Graciela; Acosta, Rebeca; Felix, Sebastián
2001-01-01
El Departamento de Cachi, en la Provincia de Salta pertenece a los Valles Calchaquíes, los que se extienden además por Catamarca y Tucumán, constituyéndose en una región importante en la comunicación entre el Valle de Lerma y la Puna. Hasta el momento no se conocen datos de la genética de estas poblaciones, salvo los publicados por Matson en 1968 registrados en otra región de la provincia. A partir de la determinación de los grupos: ABO, MN, Ss, Cc, Dd, Ee, P, Diego y Kell-Cellano, Duffy y...
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Bioleaching of a manganese and silver Ore
International Nuclear Information System (INIS)
Porro, S.; Tedesco, P.H.; La Plata
1990-01-01
The bioleaching with a strain of Thiobacillus thiooxidans of the ore of Farallon Negro (Catamarca, Argentina) was studied in order to estimate its application to the solution and recovery of the manganese, and to improve the silver extraction. The State company which works the mine has not yet found an economical process to extract the manganese and has only reached a 30% efficiency in the recovery of silver by cianuration. The effects of pulp density variations and the addition of different quantities of FeS were analysed looking for the best working conditions. 74 μm (mesh Tyler 200) of ore particles were used because that is the size used in this plant for the cianuration process. (Author)
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Intercultural relations, bodies speech and semiopraxis
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José Luis Grosso
2010-12-01
Full Text Available La línea de investigación que proponemos pone en diálogo el trabajo conjunto de redes de investigación latinoamericana, fundamentalmente,las que tienen vinculación con movimientos y actores sociales, no necesariamente académicos, como por ejemplo el Grupo Latinoamericano de Estudios Sociales de los cuerpos y las emociones, con quienes venimos trabajando desde el año 2007, y cuenta con colegas de México, Colombia, Perú y Argentina; la Red Sur de Patrimonio Cultural, Memorias Locales y Globalización, donde participan colegas de Catamarca en Argentina; Popayán, Santa Marta y Cali en Colombia y también en Sudáfrica, que trabajan el tema de Patrimonio Cultural.
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Federico Ignacio Vázquez
2011-01-01
Full Text Available Este trabajo se propone analizar las prácticas de territorialización desplegadas por los Tinogasta en Belén durante el siglo XVIII. Se analizaran los mecanismos jurídicos coloniales a partir de los cuales los Tinogasta buscaron "reterritorializar" su espacio, para recomponer sus condiciones de reproducción social. En este sentido, se observará cómo, frente a diversas prácticas de dominación, algunas poblaciones indígenas implementaron estrategias de resistencia, negociación y/o alianza para reinterpretar la realidad colonial y operar sobre ella. Así, lejos de ser meros espectadores pasivos de su dominio se transformaron en agentes de su reproducción social en un contexto de asimetría.This paper analyzes the practices of territorialization deployed by the Tinogasta in Belen through the 18th century. It will analyze how, through colonial legal mechanisms, the Tinogasta looked for "re-territorialize" their space in order to rebuild their conditions of social reproduction. We intend to observe how some Indian populations implemented multiple resistance, negotiation and/or alliance strategies against diverse domination practices in order to reinterpret -and operate on- the colonial reality. Then, far from being mere passive spectators of their dominance they became agents of their own social reproduction in an asymmetrical context.
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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.
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La enseñanza de Antropología Biológica en cursos avanzados de Biología
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Lomaglio, Delia Beatriz
2003-01-01
Full Text Available La Facultad de Ciencias Exactas y Naturales de la Universidad Nacional de Catamarca ofrece tres carreras de Biología: Licenciatura, Profesorado y Tecnicatura. En todas ellas la asignatura Antropología Biológica se inserta en las currículas en los últimos años de cursado. Esta particularidad permite a los alumnos el manejo de contenidos diversos que posibilitan el dictado en forma integradora. En los últimos años se pusieron en práctica actividades de integración de los alumnos a las investigaciones bioantropológicas en desarrollo y de interdisciplinariedad. Estas actividades se evaluaron como muy positivas en el rendimiento académico del alumnado, que logra desde la praxis la integración de contenidos temáticos, actitudinales y procedimentales.
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Directory of Open Access Journals (Sweden)
Silvina Carrizo
2016-01-01
Full Text Available The mining industry has become very dynamic in Argentina and is in fact essential to the country’s economy, repositioning the Andes mountain chain at the heart of economic, political and social issues, on different scales. The specialization of the mountain territories as reservoirs of raw materials to be obtained through mining is questioned because of the weak development that seems to result from it in these still marginal, poor and scarcely populated territories. The trajectories of three provinces —San Juan, Catamarca and Jujuy— make it possible to analyze the role of governmental and non-governmental stakeholders in developing the industry and the values attributed to it. These interactions give rise to alternative development models for the Andean territories, that progressively take the local development issues into account.
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Juan Manuel Cellini
2012-07-01
Full Text Available Se cita por primera vez para la Provincia de Buenos Aires Tillandsia myosura, coleccionada en las inmediaciones del arroyo Pereyra, Parque Provincial y Reserva de la Biosfera Parque Pereyra Iraola (Partido de Berazategui, Buenos Aires, Argentina. Esta especie, conocida hasta el presente sólo para el sur de Uruguay y las provincias de Catamarca, Córdoba, Jujuy, La Rioja, La Pampa, Mendoza, Salta, San Juan, San Luis, Santiago del Estero y Tucumán en Argentina es citada por primera vez para la Provincia de Buenos Aires, ampliándose su límite sur de distribución. En el presente trabajo se describe e ilustra la especie, y se presenta una clave para diferenciarla de especies afines de distribución congruente.
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Spyratos D
2017-08-01
Full Text Available Dionisios Spyratos, Eleni Papadaki, Sofia Lampaki, Theodoros Kontakiotis Pulmonary Department, Lung Cancer Oncology Unit, Aristotle University of Thessaloniki, G. Papanicolaou Hospital, Thessaloniki, Greece Abstract: Chronic obstructive pulmonary disease (COPD and lung cancer share a common etiological factor (cigarette smoking and usually coexist in everyday clinical practice. The prevalence of COPD among newly diagnosed patients with lung cancer sometimes exceeds 50%. COPD is an independent risk factor (2–4 times higher than non-COPD subjects for lung cancer development.The presence of emphysema in addition to other factors (e.g., smoking history, age could be incorporated into risk scores in order to define the most appropriate target group for lung cancer screening using low-dose computed tomography. Clinical management of patients with coexistence of COPD and lung cancer requires a multidisciplinary oncology board that includes a pulmonologist. Detailed evaluation (lung function tests, cardiopulmonary exercise test and management (inhaled drugs, smoking cessation, pulmonary rehabilitation of COPD should be taken into account for lung cancer treatment (surgical approach, radiotherapy. Keywords: lung cancer, COPD, coexistence, risk factor, therapy decisions
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New stratigraphic proposal for supra crustal the Dom Feliciano Belt ( Proterozoic , Uruguay )
International Nuclear Information System (INIS)
Preciozzi, F.; Sanchez Bettucci, L.; Oyhantcabal, P.; Pecoits, E.; Aubet, N.; Peel, E.; Basei, M.
2005-01-01
Dom Feliciano Belt (Fragoso Cesar 1980) is represented in Uruguay so Preciozzi et to the. (1991) defined as Dionisio Blade Belt. It brings together all affected units by metamorphism and deformation during the Brasiliano (sensu Almeida et al. 1973) and magmatism in the same age range, which develops constituting a belt in southeastern Uruguay. Various supra crustal successions have been recognized in the Western domain of this belt in Uruguay, namely Fm. Zanja del Tigre (Sanchez-Bettucci 1998), Lavalleja Group (Bossi 1966), Arroyo del Soldado Group (Gaucher et al. 1996) and Formations Playa Hermosa (Masquelin and Sanchez Bettucci 1993) and Las Ventanas (Midot 1984), among others. The Group has been Lavalleja correlated with Porongos Group and the Brazilian Brusque Metamorphic Complex (Hasui et al. 1975; Silva and Dias 1981). This group has a granitic basement-probably associated gnéissico to Block Valentines (Preciozzi et al. 1979) and the Land Pavas, aged Paleoproterozoicas and Archean (Hartmann et al. 2001). It comprises varied lithologies, metasedimentary; metavolcanic acid; basic and metagabbros metavolcanic
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Germán Figueroa
2009-12-01
Full Text Available El control y acumulación de recursos económicos en el Valle de Ambato entre los siglos VI y XI d.C. ha sido considerado como un factor de suma importancia en el mantenimiento y reproducción de las diferencias sociales entre las personas. Se cree que el uso de sectores seleccionados del paisaje como áreas de producción agrícola se hallaba vinculado de manera funcional y organizacional con agregados residenciales o aldeas emplazadas en el fondo del valle. En dichos sectores, más precisamente sobre los faldeos de la sierra de la Graciana y del Ambato, se registró la presencia de infraestructura agrícola, tales como terrazas de cultivo, represas y canales. En este trabajo, se analizan los sistemas de cultivo y su potencial productivo en relación a los grupos humanos que habitaron el valle, para lo cual se lleva a cabo una caracterización del sistema hidro-agrícola y un análisis de su capacidad sustentadora en base a registros arqueológicos y observaciones etnográficas propias. Los resultados obtenidos permitirán discutir acerca de la posible existencia de un excedente económico, utilizado por un determinado sector de la población con el propósito de usufructuar los beneficios derivados del mismo. Palabras clave: Valle de Ambato, Aguada, sistemas agrícolas, potencial productivo, excedente económico. Abstract The control and accumulation of economic resources in the Ambato Valley between VI and XI centuries AD has been considered a key factor in the maintenance and reproduction of social differences between people. It is believed that the use of selected sectors of the landscape as agricultural production areas was functional and organizational associated with villages located in the valley bottom. In these sectors, and more precisely on the slopes of Graciana and Ambato mountain ranges, the presence of agricultural infrastructure was registered, such as farming terraces, dams and channels. In this paper, we analyze the farming systems and their productive potential in relation to the human groups that inhabited the valley. In order to accomplish these objectives we carry out a characterization of the hydro-agricultural system and an analysis of its carrying capacity based on archaeological records and our own ethnographic observations. The obtained results will allow discussing about possible existence of an economic surplus, used by a particular sector of the population with the purpose of usufruct benefits derived from it. Keywords: Ambato Valle, Aguada, agricultural systems, productive potential, economic surplus.
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María Soledad Gianfrancisco
2017-12-01
Full Text Available En este trabajo se presentan los resultados de análisis físicos y químicos efectuados sobre un conjunto de bienes ornamentales procedentes de los sitios Alamito. La identificación de materia prima alóctona empleada para su manufactura y la ausencia de elementos sustanciales que den cuenta de una producción local de los mismos nos permiten plantear la hipótesis de que fueron adquiridos mediante mecanismos de intercambio, como otros de los tantos productos que circularon en el flujo interregional de bienes en el contexto macrorregional del área surandina. ENGLISH: This paper presents the results of physical and chemical analyses carried out on a set of ornamental goods from Alamito sites. The identification of allochthonous material used for their manufacture and the absence of substantial elements that would indicate local production allow us to put forward the hypothesis that these ornamental goods were acquired through trade, like many other products that circulated through the interregional flow of goods in the macro-regional context of the southern Andes.
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Estado nutricional infanto juvenil en seis provincias de Argentina: variación regional
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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
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¿QUÉ TIPO DE NORMAS ÉTICAS REQUIERE NUESTRA PROFESIÓN?
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Juan Pablo Romano Pastor
2011-10-01
Full Text Available El presente trabajo tiene por objetivo dar a conocer la situación que la profesión contable argentina en general presenta sobre la ética profesional y los Códigos de Ética, en un marco de creciente integración internacional. Las acciones coordinadas debieran partir del cumplimiento de la “intención” manifestada en el Acta de Catamarca de lograr unificación de normas profesionales en todas las jurisdicciones, cumplida respecto de las normas contables y de auditoría, de las normas éticas, bajo la propuesta de unificación de normativa en un solo cuerpo integrado vigente en todo el país. La posibilidad de adopción del Código de Ética de IFAC nos plantea el interrogante respecto del tipo de normativa que requerimos: ¿basado en reglas o basado en principios?
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Experiencias e interpretaciones en performances rituales (Iruya y El Cajón, noroeste argentino
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Karen Avenburg
2014-07-01
Full Text Available Este artículo se propone reflexionar acerca del modo en que dos performances rituales del noroeste argentino recrean en sus puestas en escena diferentes experiencias. Desde un enfoque etnográfico apoyado en los respectivos trabajos de campo de las autoras, se analizan comparativamente la Fiesta Patronal de la Virgen del Rosario de Iruya (Salta y la Semana Santa de El Cajón (Catamarca. En particular, se discuten algunas de las razones por la cuales en un contexto ritual la puesta en escena implica la recreación de su historia sociocultural y política, mientras que en el otro el eje central transcurre reactualizando eventos cosmológicos. El marco teórico utilizado se basa en el concepto de performance y su relación con la experiencia, siguiendo los aportes realizados por Edward Bruner y Victor Turner.
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Adriana Delbó
2008-09-01
Full Text Available Os escritos de Nietzsche, contemporâneos a O nascimento da
tragédia, esclarecem as preocupações do jovem filósofo com as condições políticas para uma verdadeira cultura. O par Apolo e Dionisio, opostos que se integram na religiosidade grega, como potências da natureza, resulta esteticamente na arte trágica, e politicamente em um Estado guerreiro. Assim Nietzsche atribui aos gregos a capacidade para a criação de cultura: arte, Estado e religião, unidos pela vontade artística da natureza, impulsionadora da vida de um povo.The Nietzsche’s writings of the period of The birth of tragedy informs
about the young philosopher’s concerns with the requisite political
conditions for a true culture. The pair Apollo and Dionysus, in opposition and harmonized in Greek religiosity, as powers of the nature, results aesthetically in the tragic art, and politically results in a warlike State. Nietzsche assigns to Greeks the capacity to create a culture: art, state and religion jointed by the artistic will of nature, which impels the life of a nation.
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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.
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El Ejército Auxiliar del Perú y la gobernabilidad del interior, 1816-1820
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Alejandro Morea
2012-12-01
Full Text Available Tras la derrota sufrida en los campos de Sipe- Sipe, el Ejército Auxiliar del Perú se traslado hasta la ciudad de San Miguel de Tucumán donde estuvo acantonado la mayor parte del tiempo entre 1816 y 1819. Su permanencia en esta ciudad coincidió con una serie de conflictos políticos y militares que tuvieron lugar en La Rioja, Córdoba, Tucumán, Santiago del Estero y Catamarca en los cuales este ejército tuvo activa participación. A partir de la documentación existente en el Archivo General de la Nación intentaremos demostrar como el Ejército Auxiliar del Perú resultó fundamental para asegurar la subordinación de estos territorios al poder central, y como su accionar fue clave en el mantenimiento de la gobernabilidad en el interior de las Provincias Unidas del Río de la Plata en este período
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El sentido de territorialidad en Argentina: cuidar un lugar para cuidarnos
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Florencia Soraire
2013-12-01
Full Text Available Abordar el cuidado del lugar donde se vive en sintonía con la búsqueda y el logro de bienestar, posibilita dimensionar la preocupación por llevar adelante una vida sana frente a la dinámica destructiva de las tendencias hegemónicas de producción, donde el ambiente es significado como “recurso natural”. Las estrategias emprendidas para protegerse y cuidarse, tanto a modo individuo como colectivo, incluyen también la búsqueda de otro tipo de interacción con el medio que se habita. Al ser la significación del ambiente como lugar sagrado una de ellas, encontramos en la emergencia de la “Pachamama” –Madre Tierra– la clave de lectura que articula el “cuidar un lugar para cuidarnos”. En este sentido, ciertas prácticas alimentarias y acciones conjuntas que se emprenden en aras de defender y cuidar la tierra (y cuidarnos, son indicadores de las diferentes formas de búsqueda para “sentirse bien”. Recurrimos entonces, a dos etnografías en Argentina que dan cuenta de los cuestionamientos que nos generan las luchas contra la mega-minería a cielo abierto en Catamarca y contra la instalación de Monsanto en Córdoba. | To address the place where we live along with the quest and the attainment of wellness enables us to dimension the concerns around having a healthy life in light of the destructive dynamics of the prevailing production trends, in which the environment is, signified as a mere “natural resource”. The strategies adopted to preserve and care for oneself, as individual and within a collective setting, also include the pursuit of another type of integration with the means we inhabit. When we signify the environment as a sacred means, we come across the emergence of the “Pachamama” –Mother Earth, Gaia–, the interpretation key articulating the concept to “care for a place to care for us”. It is in this sense that certain feeding practices and joint actions are taken aiming at defending and preserving the
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La muerte como proceso: una perspectiva antropológica
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Bárbara Martínez
2013-09-01
Full Text Available Este artículo, desde una perspectiva antropológica, combina recientes aproximaciones que cuestionan la homología entre muerte y deceso biológico, con la tradición de estudios que revisan los rituales de muerte en el área geográfica andina. En particular, examina cómo se produce en El Cajón, Catamarca, noroeste argentino, la incorporación de un fallecido al esquema cosmológico, y cómo la muerte, que es un puntapié inicial para ello ocurra, no es meramente un evento biológico sino también un proceso social de gran dinamismo. A partir del trabajo de campo etnográfico, y tomando como herramientas metodológicas entrevistas abiertas de sesiones múltiples y observación participante, presenta una propuesta analítica que procura superar la homología entre muerte y deceso biológico, sugiriendo una noción que incluye la dimensión orgánica, pero también la social: el proceso de la muerte.
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Pacheco, José L.
2007-01-01
Full Text Available El objetivo del presente trabajo –que se enmarca en un proyecto común denominado “Condición nutricional y biodiversidad en las poblaciones humanas”- es determinar el modelo de distribución de grasa corporal existente durante las edades de la adolescencia, y si existen diferencias entre poblaciones española e iberoamericanas. La muestra está formada por 1452 jóvenes entre 12 y 17 años, argentinos (Catamarca y Jujuy, españoles (Comunidad de Madrid, y venezolanos (Caracas y Mérida. Se analizó la distribución de grasa corporal haciendo especial énfasis en el Índice de Conicidad (IC. Al analizar este índice respecto a edad se observa que cambia en mayor grado que otros indicadores de adiposidad. Cada serie presenta, además, su propio patrón de variación. Los resultados obtenidos se interpretan en función de parámetros geográficos y socioeconómicos en los que se desenvuelven las poblaciones analizadas.
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Gabriel Eduardo Miguez
2015-06-01
Full Text Available En este trabajo se presentan los resultados del estudio realizado sobre restos de obsidiana, los cuales constituyen los primeros registrados en contextos arqueológicos de las selvas meridionales de la provincia de Tucumán. Estos materiales fueron recuperados en capas estratigráficas del primer milenio D.C. correspondientes al sitio Santa Rosa, el cual se ubica en la base de las laderas orientales de la Sierra del Aconquija (Tucumán, Argentina. Se realizó un análisis técnico-morfológico de los especímenes, en conjunto con un análisis geoquímico mediante fluorescencia de rayos X (FRX para determinar la procedencia geográfica de los materiales de obsidiana. Los resultados determinaron que la materia prima de la muestra, compuesta exclusivamente por desechos de talla, procede de la cantera de Ona-Las Cuevas, la cual se ubica a ca.270 km al noroeste del sitio Santa Rosa, en el norte de la provincia de Catamarca, en la Puna meridional argentina. La gran distancia sitio-cantera nos lleva a proponer que las comunidades prehispánicas de estas tierras bajas habrían participado de esferas estables de interacción con grupos de áreas muy distantes, propiciando la circulación e intercambio de obsidianas dentro de la porción meridional del NO de Argentina. Abstract In this paper we present the results of the study conducted on obsidian specimens, which constitutes the first record of this kind in archaeological contexts of the southern forests of the province of Tucumán are presented. These materials were recovered in stratigraphic layers of the first millennium AD of the Santa Rosa site, which is located at the base of the eastern slopes of the Sierra del Aconquija (Tucumán, Argentina. A techno-morphological analysis of specimens in conjunction with geochemic alanalysis using X-ray fluorescence (XRF was performed to determine the geographical provenance of obsidian archaeological materials. Results determined that the sample raw material
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The Madrid School of Neurology (1885-1939).
Giménez-Roldán, S
2015-01-01
The emergence of neurology in Madrid between 1885 and 1939 had well-defined characteristics. On foundations laid by Cajal and Río-Hortega, pioneers combined clinical practice with cutting-edge neurohistology and neuropathology research. Luis Simarro, trained in Paris, taught many talented students including Gayarre, Achúcarro and Lafora. The untimely death of Nicolás Achúcarro curtailed his promising career, but he still completed the clinicopathological study of the first American case of Alzheimer's disease. On returning to Spain, he studied glial cells, including rod cells. Rodríguez Lafora described progressive myoclonus epilepsy and completed experimental studies of corpus callosum lesions and clinical and neuropathology studies of senile dementia. He fled to Mexico at the end of the Spanish Civil War (1936-1939). Sanchís Banús, a sterling clinical neurologist, described the first cluster of Huntington's disease in Spain, and he and Río-Hortega joined efforts to determine that pallidal degeneration underlies rigidity in advanced stages of the disease. Just after the war, Alberca Llorente eruditely described inflammatory diseases of the neuraxis. Manuel Peraita studied "the neurology of hunger" with data collected during the siege of Madrid. Dionisio Nieto, like many exiled intellectuals, settled in Mexico DF, where he taught neurohistological methods and neuropsychiatry in the tradition of the Madrid School of Neurology. Copyright © 2014 Elsevier Masson SAS. All rights reserved.
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Violencia y tensión social en Rincón Chico 21 (Santa María, Catamarca
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Mendonça, Osvaldo Juan
2005-01-01
Full Text Available El funeral y sus símbolos son formas en que las sociedades elaboran la muerte de sus miembros. La ceremonia puede presentar variaciones en su complejidad, pero sólo una porción de la misma termina formando parte del registro arqueológico. Esta circunstancia determina un número importante de recaudos al considerar la interpretación del registro funerario, particularmente las causas de muerte a partir de este registro. Una circunstancia especial lo constituye la muerte por causas violentas, ya que proporciona evidencias de índole tanto biológica como cultural. En este trabajo se describen y analizan críticamente los indicadores de muerte violenta en individuos de una cámara sepulcral (C-13 del cementerio de Rincón Chico 21. Un importante conjunto de puntas de proyectil impactando el interior de los cuerpos, la presencia de un esqueleto en condiciones de muy baja integridad, e inclusiones funerarias, permiten discutir e interpretar el conjunto en un escenario de violentas interacciones locales y regionales, de Contacto, y de resistencia territorial.
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La estrategia comunicacional en el sector mega-minero. Un estudio del caso La Alumbrera en Argentina
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Julieta Godfrid
2016-06-01
Full Text Available En los últimos años se produjo en la Argentina una rápida expansión de la mega-minería a cielo abierto, lo que vino acompañado de un creciente aumento de la conflictividad socio-ambiental que cuestiona en profundidad las consecuencias de la actividad extractiva. En este contexto, las múltiples críticas a la mega-minería deslegitimaron profundamente la imagen del sector y de las empresas que llevan adelante este tipo de actividad. A partir de allí, las corporaciones mega-mineras se vieron frente a la necesidad de construir una nueva estrategia comunicacional integral que les permitiera mejorar su imagen y construir consenso en torno a la actividad. El presente trabajo indaga en torno a las nuevas estrategias comunicacionales del sector mega-minero que se llevan a cabo bajo el paradigma de la Responsabilidad Social Empresaria y el “marketing experiencial”. Para ello se trabaja a partir del estudio de caso del emprendimiento mega-minero más antiguo del país, la empresa La Alumbrera (Provincia de Catamarca.
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Horacio Machado Aráoz
2013-04-01
Full Text Available A partir de la constatación de las grandes transformaciones sociales provocadas por el desembarco de la megaminería transnacional en la Provincia de Catamarca, el presente trabajo se plantea abordar el análisis de la conflictividad ‘minera’ desde la perspectiva de sus impactos microbiopolíticos, esto es, en el plano de los cuerpos, las emociones y los sentimientos. Considerando que se trata de un aspecto crucial de los procesos sociales que se verifican en los nuevos escenarios del extractivismo minero, este trabajo procura desarrollar una ecología política de las emociones como clave para caracterizar los conflictos mineros, así como los efectos eco-biopolíticos que se producen en las comunidades locales intervenidas. Apelando a registros etnográficos, se exponen diferentes dimensiones de los cambios sociales resultantes de las políticas mineras sobre los cuerpos y las emociones. Con los conceptos de fiebre del oro y mineralización social, se busca brindar una hermenéutica crítica de estos procesos orientada a visibilizar lo que se entiende como sus rasgos y efectos neocoloniales.
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Iniciativas del Acceso Abierto a la información científica y académica en el campo Ingeniería
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Doria, María Vanesa
2012-01-01
Full Text Available Las iniciativas que propone el Acceso Abierto (AA propician el acceso a la información científico-técnica que se produce en todo el mundo y una mayor visibilidad de la producción científica de instituciones, países y regiones subdesarrolladas. La estrategia para llevar a la práctica dichas iniciativas se sustancian en la creación y mantenimiento de repositorios institucionales y/o temáticos. En nuestros días la clave es el acceso a información libre y gratuita, partiendo además del principio de compartir conocimientos como el principal recurso de cualquier organización. El presente trabajo recoge la importancia de la iniciativa para el AA a la información científica y académica. Se analizan la estructura y funcionamiento de los repositorios temáticos y se presenta una propuesta de repositorio en Ingeniería de Software para el Dpto de Sistemas de la Facultad de Tecnología y Ciencias Aplicadas de la Universidad Nacional de Catamarca.
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Fernando H. Aballay
2011-12-01
Full Text Available A pesar de ser fauna necrófaga y de estar presentes en cadáveres humanos, los Sarcophagidae no suelen utilizarse en estudios forenses debido a la dificultad en su identificación y la poca información sobre su biología. En este trabajo, se identificaron las especies de Sarcophagidae asociadas a cadáveres y se estudió su relación con los estados de descomposición. Se analizaron las preferencias por los sustratos cadavéricos (cerdo y llama y las condiciones microambientales (sol y sombra en un ambiente de altura (3.600 msnm, durante la primavera. Se utilizaron dos cadáveres de cerdo dispuestos al sol y a la sombra y un cadáver de llama dispuesto al sol. Se colectaron 597 individuos pertenecientes a cinco especies de Sarcophagidae: M. antofagastensis Mulieri, Mariluis & Aballay (n=347, M. quimaliensis (Lopes (n=117, M. rusca (Hall (n=32, M. penai (Lopes (n=5 y M. aulacophyto Pape (n=96. Tanto M. antofagastensis, como M. quimaliensis fueron las únicas especies con colonización efectiva y representaron el 78% del total de adultos colectados. Microcerella antofagastensis fue la colonizadora primaria. Ambas especies respondieron de forma similar ante las condiciones microambientales y prefirieron el cadáver de cerdo. Se discute la importancia de M. antofagastensis y M. quimaliensis, como especies indicadoras y las posibles ventajas de la ovoviviparidad frente a otras especies ovíparas, en condiciones de extrema aridez.Despite their prevalence in human corpses during decomposition, Sarcophagidae are not frequently used in forensic studies due to the difficulty in their identification and to the lack of information on their biology. In this paper, we identified the species of Sarcophagidae associated to corpses and studied their relationship to decomposition stages. We analyzed preferences for different cadaveric substrates (pig and lama and microenvironmental conditions (shade, sun at a site located at 3600 m.a.s.l. during the spring. Two pig carcasses, one located in the shade and the other in the sun, and a third carcass of a lama located in the sun, were used. We collected 597 individuals belonging to five Sarcophagidae species: Microcerella antofagastensis Mulieri, Mariluis & Aballay (n=347, M. quimaliensis (Lopes (n=117, M. rusca (Hall (n=32, M. penai (Lopes (n=5 and M. aulacophyto Pape (n=96. Both M. antofagastensis and M. quimaliensis were the effective colonizers and represented 78% of the total adults collected. Microcerella antofagastensis was the primary colonizer. Both species had a similar response against microenvironmental conditions and both preferred the pig carcass. We discuss the importance of these two species as forensic indicators and the advantages of ovoviviparity against other oviparous species under extreme arid conditions.
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Cordero, Enrique
2001-09-01
Full Text Available La limpieza de dos óleos conocidos como retratos de Copérnico y Galileo del Museo Episcopal y Capitular de Huesca (Figs. 1-3, procedentes de la antesacristía de la propia Catedral, para la segunda parte de la exposición Signos ha permitido leer en ellos la firma del pintor granadino José de Cieza (1656-1692, que según Palomino comenzó a destacar en Granada especializándose en paisajes y flores al temple y en las decoraciones para el Corpus. Afincado en Madrid en 1686, trabajó en las «mutaciones del Coliseo del Buen Retiro», lo que le valió el título de pintor regio con el que firma las telas oscenses. En pintura al óleo, en su etapa madrileña. Palomino cita dos de la vida de San Francisco de Paula para el convento de la Victoria, que pasaron al Museo de la Trinidad, de los que sólo se conserva uno en mal estado en el Museo del Prado y «muchos» que pintó para la iglesia nueva de las Mercedarias Descalzas del barrio del Barquillo (Góngoras.…
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Bonini, Ricardo A.; Georgieff, Sergio M.; Candela, Adriana M.
2017-11-01
The Santa María-Hualfín Basin was proposed as a regional synchronous lithostratigraphic depocenter in the geological province of Northwestern Pampean Ranges, Northwestern Argentina. However, new 40Ar-39Ar dating indicates that deposits toward the east, in Santa María Valley (Santa María Department), are younger than the western depocenter in San Fernando (Belén Department). Therefore, it would be more appropriate to study these valleys as separate basins, each one with its own tecto-sedimentary features. The east basin, named in this paper Villavil-Quillay, constitutes an elongated independent basin that developed along the front of the eastern Puna bordering with Papachacra and Durazno Ranges. This basin is composed of more than 3000 m of mudstone, sandstone, conglomerates, volcaniclastic and pyroclastic deposits. Villavil-Quillay basin develops onto a peneplain of Precambrian and lower Cambrian rocks, most of which are metamorphic and granites rocks. The sedimentary fill consists of Cretaceous? and Cenozoic continental deposits. The Cenozoic record is composed of a) the Santa María Group (Miocene-Pliocene), formed by Las Arcas, Chiquimil, Andalhuala and Corral Quemado Formations, and b) the Punaschotter unit (Puna's Gravels in German, Pleistocene). This study involves the Andalhuala, Corral Quemado and Punaschotter deposits cropping out in San Fernando area. The set of identified facies assemblage corresponding to the Andalhuala Formation shows a vertical variation of fluvial sub-environments, varying from permanent sandy braided rivers to gravel rivers and aeolian dunes culminating in an alluvial dry cycle. While facies assemblages of the Corral Quemado Formation allow inferring the development of ephemeral water bodies from secondary channels on the floodplain, the Punaschotter conglomerates indicate the development of gravel channels and bars. Three samples of tuffs interbedded in the sedimentary levels of Andalhuala Formation were dated indicating that the Miocene-Pliocene boundary is represented in this area. The lower tuff beds, outcropping at the southwest of San Fernando Sur, provided an age of 5.59 ± 0.04 Ma (late Miocene, Messinian). The others tuffs beds, both outcropping at the west-northwest of San Fernando Norte and overlaying the first one, gave an age of 4.79 ± 0.15 Ma and 4.72 ± 0.08 Ma (early Pliocene, Zanclean), respectively. These absolutes ages, together with the results of a sedimentological analysis, indicate that westward from San Fernando River, much of the areas mapped as Corral Quemado Formation correspond to the Andalhuala Formation; while part of the area considered as Punaschotter unit must be assigned to Corral Quemado Formation. Also, a thick tuff bed, recognized at the contact of Corral Quemado and Punaschotter, was considered as the previous one dated in 3.66 Ma, in Puerta de Corral Quemado locality.
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Malnutrición en la adolescencia
Directory of Open Access Journals (Sweden)
Lomaglio, Delia Beatriz
2007-01-01
Full Text Available Una situación frecuente en sociedades actuales es la coexistencia de estados malnutritivos, como consecuencia de los cambios en los estilos de vida, que se manifiestan con características particulares según la sociedad de la que se trate. En la provincia de Catamarca, considerada entre las de mayores carencias estructurales en el país, se analizó la tendencia de peso, talla e índice de masa corporal (IMC de 1611 adolescentes, en tres períodos (1980, 1990 y 2000, observandose diferencias significativas. Se calcularon prevalencias de bajo peso para talla, sobrepeso y obesidad, en base a curvas percentiladas del IMC, utilizando las referencias del Nacional Center for Health Statistics (NCHS y la Internacional Obesity Task Force (IOTF. Hubo incremento particularmente en los promedios de peso e IMC, más importantes en el presente siglo, con diferencias por sexo y mayor en los varones. La desnutrición ha tenido un leve incremento, mayor en mujeres, al igual que el sobrepeso, particularmente en la última década, en tanto que la obesidad tuvo un aumento muy importante sólo entre varones. Las tablas de referencia de IOFT sobreestiman el sobrepeso y subestiman la obesidad en relación a las de NCHS.
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Biodiversity of Myxomycetes from the Monte Desert of Argentina
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Lado, C.
2011-06-01
Full Text Available A biodiversity survey for myxomycetes was carried out in the Monte Desert (Argentina and surrounding areas in November 2006 and late February and March 2007. Specimens were collected in seven different provinces (Catamarca, Jujuy, La Rioja, Salta, San Juan, San Luis and Tucumán, between 23º and 33º S latitude, and a total of 105 localities were sampled. Cacti and succulent plants were the most common type of substrate investigated, but shrubs and herbs characteristic of this biome were also included in the survey. Almost six hundred specimens of myxomycetes from 72 different species in 22 genera were collected either in the field, or from moist chamber cultures prepared with samples of plant material obtained from the same collecting sites. The results include 1 species new to science, Macbrideola andina three more species recently described based on material from this survey, 5 species cited for the first time for the Neotropics, 11 new records for South America and 38 new records for Argentina. Taxonomic comments on rare or unusual species are included and illustrated with photographs by LM and SEM. Data are presented on the development of some species and microenvironmental factors are discussed. An analysis of the biodiversity of myxomycetes in this area, and a comparison with other desert areas, are included.
Con el objetivo de estudiar la biodiversidad de Myxomycetes en el Desierto de Monte (Argentina y áreas circundantes, se realizó un muestreo en los meses de noviembre de 2006 y febrero y marzo de 2007. Se recolectaron especímenes en un total de 105 localidades pertenecientes a siete provincias (Catamarca, Jujuy, La Rioja, Salta, San Juan, San Luis y Tucumán, situadas entre los paralelos 23º y 33º de latitud sur. Los cactus y plantas suculentas fueron los tipos de sustratos más estudiados, pero también se analizaron arbustos y plantas herbáceas características de este bioma. Casi 600 especímenes de mixomicetes -
International Nuclear Information System (INIS)
Vattuone, M.
1999-01-01
The main objective of the study was to assess Ceratitis capitata Wied. (medfly) female trapping with new traps and attractants in varying ecological conditions as part of a co-ordinated international programme. Trials were carried out between 1995 and 1997, using seven types of traps baited with the various combination of sexual and food attractants. Different methods for insects retention were also tested. For these trials, protocols established by the International Atomic Energy Agency were followed. The Jackson Trap with Trimedlure plugs proved to be the most efficient for capture of medfly males, while International Pheromone's McPhail Trap was the most efficient for the capture of females, when used with a combination of all three new attractants (FA-3) consisting of ammonium acetate, putrescine, and trimethylamine plus the toxicant DDVP for insect retention. The new traps and attractants also captured flies belonging to genus Anastrepha (Diptera: Tephritidae). (author)
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Experience with two pipeline river crossings in Argentina
Energy Technology Data Exchange (ETDEWEB)
Yaremko, Eugene [Northwest Hydraulic Consultants (NHC), Edmonton (Canada); D' Agnillo, Pablo; Diaz, Jose A. [Minera Alumbrera XTRADA Copper S.A., Buenos Aires (Argentina); Bravo, Claudio
2009-12-19
The Alumbrera copper-gold mine located in the Province of Catamarca, northwest region of Argentina, commenced operation in October, 1997. Mine development included a 316 km long, 175 mm diameter slurry pipeline that conveys copper concentrate to a dewatering facility near the city of Tucuman, Province of Tucuman. It became apparent during the first few years of operation that, given the many potential risks of pipeline exposure associated with stream crossings, Minera Alumbrera would have to undertake an aggressive, formal program of risk management of crossings and risk mitigation. In this paper, the experience associated with two crossings is addressed: Rio Villavil; and, Rio Gastona. The original pipeline route through the 10 km length of pipeline connecting Pump Station (PS) 2 to PS 3 was directed along the bottom of the Rio Villavil valley, with most of it located within the flood way of the stream. The exposure of the pipeline at some locations and high risk of further pipeline exposures led to initiation of risk mitigation planning. Remediation work was completed by 2008. Rio Gastona, during the summer of 2001, experienced rapid shifting of the left bank at the crossing resulting in an undermined and unsupported length of pipeline. The subsequent risk mitigation method adopted in 2001 involved the planning and construction of groyne fields along both banks. (author)
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Directory of Open Access Journals (Sweden)
Christian Peeters
Full Text Available The South American seed-harvester ant Pogonomyrmex laticeps has dimorphic queens: ergatoid (permanently wingless and brachypterous (short, non-functional wings. Surveys in western Argentina indicated that colonies near Chilecito, La Rioja Province, produced only ergatoid queens, while those near Punta Balasto, Catamarca Province (263 km away, produced only brachypterous queens. Brachypterous queens were significantly larger than ergatoid queens for 10 of 11 external characters, but both phenotypes had comparable reproductive potential, i.e., a spermatheca and a similar number of ovarioles. Using normal winged queens of the closely related P. uruguayensis for comparison, we determined that both queen phenotypes in P. laticeps had a full set of dorsal thoracic sclerites, albeit each sclerite was much reduced, whereas workers had a thorax without distinct dorsal sclerites. Sclerites were fused and immobile in ergatoid queens, while they were separable and fully articulated in brachypterous queens. Both phenotypes lacked the big indirect flight muscles, but brachypterous queens retained the tiny direct flight muscles. Overall, this dimorphism across populations indicates that there are alternative solutions to selective pressures against flying queens. We lack field data about colony founding strategy (independent or dependent for either queen phenotype, but colonies at both sites produced numerous gynes, and we infer that all foundresses initiate colonies independently and are obligate foragers.
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Directory of Open Access Journals (Sweden)
Fernando H. ABALLAY
2011-01-01
Full Text Available A pesar de ser fauna necrófaga y de estar presentes en cadáveres humanos, los Sarcophagidae no suelen utilizarse en estudios forenses debido a la dificultad en su identificación y la poca información sobre su biología. En este trabajo, se identificaron las especies de Sarcophagidae asociadas a cadáveres y se estudió su relación con los estados de descomposición. Se analizaron las preferencias por los sustratos cadavéricos (cerdo y llama y las condiciones microambientales (sol y sombra en un ambiente de altura (3.600 msnm, durante la primavera. Se utilizaron dos cadáveres de cerdo dispuestos al sol y a la sombra y un cadáver de llama dispuesto al sol. Se colectaron 597 individuos pertenecientes a cinco especies de Sarcophagidae: M. antofagastensis Mulieri, Mariluis & Aballay (n=347, M. quimaliensis (Lopes (n=117, M. rusca (Hall (n=32, M. penai (Lopes (n=5 y M. aulacophyto Pape (n=96. Tanto M. antofagastensis, como M. quimaliensis fueron las únicas especies con colonización efectiva y representaron el 78% del total de adultos colectados. Microcerella antofagastensis fue la colonizadora primaria. Ambas especies respondieron de forma similar ante las condiciones microambientales y prefirieron el cadáver de cerdo. Se discute la importancia de M. antofagastensis y M. quimaliensis, como especies indicadoras y las posibles ventajas de la ovoviviparidad frente a otras especies ovíparas, en condiciones de extrema aridez.
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Directory of Open Access Journals (Sweden)
Andrea Mastrángelo
2000-06-01
Full Text Available ¿Cómo organiza el espacio la expansión capitalista de fines del S. XX? A partir del análisis del caso de un emprendimiento minero en el noroeste argentino, este artículo realiza una revisión histórica de cómo se organiza, articuló históricamente y articula en la actualidad un centro urbano con unidades sociales mayores.How does capitalist expansion manage space at the end of XXth Century? Beginning with a case study on a mining mega enterprise in argentinian NW, this article makes a historical revision on how did a little community survive and how did it managed and articulated with greater social units.
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International Nuclear Information System (INIS)
Marajofsky, Adolfo; Denis, Alicia C.; Soba, Alejandro
2004-01-01
One of the problems of greater concern in nuclear fuels operation is that of pellet-cladding interaction (PCI), since it may be cause of fuel failure. In unfailed claddings, the occurrence of contact with the pellet is generally evidenced by a typical deformation pattern known as bamboo effect. In the present work different pellets' shapes are proposed, all of them with a chamfer next to the top and bottom surfaces. The performance of these pellets design is simulated with a numerical code, DIONISIO, previously developed in this working group, which makes use of the finite elements method. It provides the temperature, stress and strain distribution and the inventory of fission gases by analyzing phenomena like thermal expansion, elasticity, plasticity, creep, irradiation growth, PCI, swelling and densification. The pellets' design tested are grouped into two types: those with a straight chamfer running from the central pellet plane to both extremes (R-type pellets) and those with the chamfer occupying one quarter of the pellet's height leaving a central ring of the standard, cylindrical shape (M-type pellets). Different chamfer depths were numerically tested. It was found that the gap increase associated with the introduction of a deep chamfer is responsible for a significant temperature increment. But chamfers which leave a gap of 110 to 150 μm (assuming a normal fuel element with a gap 90 μm thick) gave place to pellets with an adequate thermal response and, moreover, the disappearance of the bamboo effect or even the appearance of an inverse effect, that is, pellets which make contact with the cladding in the region around its middle plane. (author) [es
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Energy Technology Data Exchange (ETDEWEB)
Garcia, Victor O; Iriarte, Adolfo A [INENCO, Universidad Nacional de Catamarca, Catamarca (Argentina); Carabajal, Dante; Sabadzija, Gabriela; Tomalino, Luis [E.E.A. INTA, Catamarca, Catamarca (Argentina)
2000-07-01
Due to poor yielding capacity in the province of Catamarca, Argentina, it is necessary to improve solar drying systems in order to have a better quality final product. It is also essential to divide the costs of infrastructure with other complementary activities because of the need to make drying methods profitable. The system proposed in this work is a dryer-greenhouse with a double purposed macrotunnel greenhouse: during Winter it is used as a yielding system, and in Summer it is prepared to fulfill the functions of a solar dryer. The crops evaluated in winter were: small vegetable marrow (Curcubita maxima L), melon (Cucumis melo), ad cucumber (Cucuis sativus). Crop cycle, harvest time and tield in Kg/m were determined for each species. The assessment of the dryer was made using pepper for paprika observation of the thermal behavior of the product during drying and its final quality. The product obtained had a very good quality in color, taste and aroma with a classification of extra quality according to the Argentine Nutritional Code and the 7541 ISO Standard. Drying time decreased considerably compared to that observed in open air drying, 1995, 1996 and 1997 campaigns were economically assessed, and an evaluation of investments in five years was also conducted obtaining a positive VAN and a TIR above the cost of the best alternative for money expenditure. This integrated system is valid alternative in a sustainable production for small growers. [Spanish] Debido a las caracteristicas productivas de la Provincia de Catamarca Argentina, es necesario optimizar los procesos del secado solar teniendo en cuenta la calidad final del producto. Ademas, debido a la necesidad de rentabilizar los metodos de secado, imprescindible repartir los costos de infraestructura con otro tipo de actividad complementaria. El sistema propuesto en este trabajo es un invernadero secadero que utiliza un invernadero macrotunel que cumple una doble funcion, durante el invierno se usa como
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Marta Franchini; Agnes Impiccini; Sol Oleary; FranciscoJavier Ríos; IsidoroB Schalamuk
2009-01-01
Agua Rica es un yacimiento deCu (Mo-Au) de clase mundial en el cual las alteraciones-mineralizaciones tipopórfido y epitermal de alta sulfuración que normalmente distan 1 km en sentidovertical, están localizadas en el mismo nivel de erosión. En el sectoroccidental de la sección analizada, el pórfido Seca Norte preserva relictos dealteración potásica del estadio de alteración temprano de alta temperatura conla mineralización de Cu (Mo, Au) encapsulada en un halo fílico donde lacalcopirita, la ...
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Molecular phylogeography of the Chagas' disease vector Triatoma infestans in Argentina
Pérez de Rosas, A R; Segura, E L; García, B A
2011-01-01
Triatoma infestans is the main vector of Chagas' disease in South America between latitudes 10°S and 46°S. A multilocus microsatellite data set of 836 individuals from 27 populations of T. infestans, from all its range of distribution in Argentina, was analyzed. Our results favor the hypothesis of two independent migration events of colonization in Argentina and secondary contacts. The majority of the populations of the western provinces of Catamarca, La Rioja, San Juan and the west of Cordoba province, had almost no shared ancestry with the rest of the populations analyzed. Probably those populations, belonging to localities close to the Andean region, could have been established by the dispersal line of T. infestans that would have arrived to Argentina through the Andes, whereas most of the rest of the populations analyzed may have derived from the dispersal line of T. infestans in non-Andean lowlands. Among them, those from the provinces of Formosa, Chaco, Santiago del Estero and Santa Fe shared different percentages of ancestry and presented lower degree of genetic differentiation. The migratory movement linked to regional economies and possibly associated with passive dispersal, would allow a higher genetic exchange among these populations of T. infestans. This study, using microsatellite markers, provides a new approach for evaluating the validity of the different hypotheses concerning the evolutionary history of this species. Two major lineages of T. infestans, an Andean and non-Andean, are suggested. PMID:21224874
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Xenarthra (Mammalia) from a new late Neogene fossiliferous locality in Northwestern Argentina
Zurita, Alfredo E.; Camacho, María; Miño-Boilini, Angel R.; Candela, Adriana M.; Cuadrelli, Francisco; Krmpotic, Cecilia M.; Solís, Natalia
2017-12-01
Northwestern Argentina contains one of the most complete continental late Neogene (ca. 9-2.58 Ma) fossiliferous sequences in South America, especially in the current territories of the Catamarca, Tucumán and Jujuy provinces. More precisely in Jujuy Province several localities bearing mainly fossil mammals have been reported at the Quebrada de Humahuaca in the Uquía, Maimará and Tilcara formations, in which the clade Xenarthra (Mammalia) is well-represented. In this scenario, the fossiliferous potential of other localities of Jujuy Province are less known, especially in those areas located at the northwest end of Argentina, bordering Bolivia in the Northern Puna. A new late Neogene fossiliferous locality near Calahoyo (3639 m.a.s.l), Jujuy Province, is here reported. The materials, belonging to Xenarthra, were exhumed from the base of the Tafna Formation which was deposited in a sedimentary basin by alluvial and/or fluvial currents, undergoing transitions of various lacustrine episodes. The taxa include the Tardigrada Pyramiodontherium bergi (Megatheriidae) and the Cingulata Eosclerocalyptus sp. (Glyptodontidae) and Macrochorobates chapalmalensis (Dasypodidae). From a biostratigraphic viewpoint, this assemblage suggests a Late Miocene-Pliocene age for the base of the Tafna Formation, and partially contradicts the supposed Plio-Pleistocene age of this unit. Finally, the new specimens here described indicate that Xenarthra were taxonomically and ecologically diverse during the late Neogene in the northwest end of Argentina, since they are represented by at least three main lineages (sloths, glyptodontids and armadillos).
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Molecular phylogeography of the Chagas' disease vector Triatoma infestans in Argentina.
Pérez de Rosas, A R; Segura, E L; García, B A
2011-07-01
Triatoma infestans is the main vector of Chagas' disease in South America between latitudes 10°S and 46°S. A multilocus microsatellite data set of 836 individuals from 27 populations of T. infestans, from all its range of distribution in Argentina, was analyzed. Our results favor the hypothesis of two independent migration events of colonization in Argentina and secondary contacts. The majority of the populations of the western provinces of Catamarca, La Rioja, San Juan and the west of Cordoba province, had almost no shared ancestry with the rest of the populations analyzed. Probably those populations, belonging to localities close to the Andean region, could have been established by the dispersal line of T. infestans that would have arrived to Argentina through the Andes, whereas most of the rest of the populations analyzed may have derived from the dispersal line of T. infestans in non-Andean lowlands. Among them, those from the provinces of Formosa, Chaco, Santiago del Estero and Santa Fe shared different percentages of ancestry and presented lower degree of genetic differentiation. The migratory movement linked to regional economies and possibly associated with passive dispersal, would allow a higher genetic exchange among these populations of T. infestans. This study, using microsatellite markers, provides a new approach for evaluating the validity of the different hypotheses concerning the evolutionary history of this species. Two major lineages of T. infestans, an Andean and non-Andean, are suggested.
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International Nuclear Information System (INIS)
Ortiz, Agustin; Hauser, Natalia
2015-01-01
The Puna geological region comprises Salta, Jujuy and Catamarca provinces, northwestern Argentina. This 4000 meter above sea level high-plateau region lies between the Central Argentinian Andes. The Puna basement in the central Andes consists of Proterozoic–Paleozoic metamorphic rocks and granitoids. Diverse authors, proposed different models to explain the origin of the basement, where two orogenic events are recognized: the Pampean (Upper Precambrian–Lower Cambrian) and Famatinian (Upper Cambrian–Lower Silurian) (e.g. Ramos et al., 1986; Ramos, 1988; Loewy et al., 2004; for opposite points of view see Becchio et al., 1999; Bock et al., 2000; Buttner et al., 2005). Hence, Lucassen et al. (2000) proposed for the Central Andean basement, an evolution in a mobile belt, where the Pampean and Famatinian cycles are not distinct events but, they are one single, non-differentiable event from 600 to 400 Ma. The mobile belt culminated in low-P/ high-T metamorphism at approximately 525-500 Ma. Then, these were followed by a long-lasting high-thermal gradient regime in the mid-crust until Silurian times. Becchio et al., (2011) defined the Diablillos Intrusive Complex (CID, by its Spanish name), emplaced in the Inca Viejo Range. This range splits the Salares Ratones-Centenario with the Salar Diablillos (Fig.1). This Complex is located in the Eastern Magmatic Belt, Southern Puna, Argentina. Here we present new zircons U-Pb ages by LA-MC-ICPMS in the Diablillos Intrusive Complex, contributing to understanding the magmatic event in the lower Paleozoic arc, SW Gondwana. (author)
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Microbiological quality of Argentinian paprika.
Melo González, María G; Romero, Stella M; Arjona, Mila; Larumbe, Ada G; Vaamonde, Graciela
The aim of this study was to evaluate the microbiological quality of paprika produced in Catamarca, Argentina. Microbiological analyses were carried out for the enumeration of total aerobic mesophilic bacteria, coliforms, yeasts and molds, and the detection of Salmonella in samples obtained from different local producers during three consecutive years. The mycobiota was identified paying special attention to the mycotoxigenic molds. Standard plate counts of aerobic mesophilic bacteria ranged from 2.7×10 5 to 3.7×10 7 CFU/g. Coliform counts ranged from <10 to 8.1×10 4 CFU/g. Salmonella was not detected in any of the samples tested. Fungal counts (including yeasts and molds) ranged between 2×10 2 and 1.9×10 5 CFU/g. These results showed a high level of microbial contamination, exceeding in several samples the maximum limits set in international food regulations. The study of the mycobiota demonstrated that Aspergillus was the predominant genus and Aspergillus niger (potential producer of ochratoxin A) the most frequently isolated species, followed by Aspergillus flavus (potential producer of aflatoxins). Other species of potential toxigenic fungi such as Aspergillus ochraceus, Aspergillus westerdijkiae, Penicillium chrysogenum, Penicillium crustosum, Penicillium commune, Penicillium expansum and Alternaria tenuissima species group were encountered as part of the mycobiota of the paprika samples indicating a risk of mycotoxin contamination. A. westerdijkiae was isolated for the first time in Argentina. Copyright © 2017 Asociación Argentina de Microbiología. Publicado por Elsevier España, S.L.U. All rights reserved.
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Energy Technology Data Exchange (ETDEWEB)
Ortiz, Agustin; Hauser, Natalia [Universidade de Brasilia (UnB), DF (Brazil). Instituto de Geociencias. Lab. de Geocronologia; Becchio, Raul; Nieves, Alexis; Suzano, Nestor [Universidad Nacional de Salta (UNSa)-CONICET, Salta (Argentina)
2015-07-01
The Puna geological region comprises Salta, Jujuy and Catamarca provinces, northwestern Argentina. This 4000 meter above sea level high-plateau region lies between the Central Argentinian Andes. The Puna basement in the central Andes consists of Proterozoic–Paleozoic metamorphic rocks and granitoids. Diverse authors, proposed different models to explain the origin of the basement, where two orogenic events are recognized: the Pampean (Upper Precambrian–Lower Cambrian) and Famatinian (Upper Cambrian–Lower Silurian) (e.g. Ramos et al., 1986; Ramos, 1988; Loewy et al., 2004; for opposite points of view see Becchio et al., 1999; Bock et al., 2000; Buttner et al., 2005). Hence, Lucassen et al. (2000) proposed for the Central Andean basement, an evolution in a mobile belt, where the Pampean and Famatinian cycles are not distinct events but, they are one single, non-differentiable event from 600 to 400 Ma. The mobile belt culminated in low-P/ high-T metamorphism at approximately 525-500 Ma. Then, these were followed by a long-lasting high-thermal gradient regime in the mid-crust until Silurian times. Becchio et al., (2011) defined the Diablillos Intrusive Complex (CID, by its Spanish name), emplaced in the Inca Viejo Range. This range splits the Salares Ratones-Centenario with the Salar Diablillos (Fig.1). This Complex is located in the Eastern Magmatic Belt, Southern Puna, Argentina. Here we present new zircons U-Pb ages by LA-MC-ICPMS in the Diablillos Intrusive Complex, contributing to understanding the magmatic event in the lower Paleozoic arc, SW Gondwana. (author)
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Resistindo ao desenvolvimento neocolonial: a luta do povo de Andalgalá contra projetos megamineiros
Directory of Open Access Journals (Sweden)
Maria Ceci Misoczky
Full Text Available A América Latina vem experimentando uma nova era de declarada fé dos governos no mito do desenvolvimento, em articulação com a expansão de políticas extrativistas exportadoras em um contexto de renovada dependência. A face mais dramática do extrativismo na região tem sido a crescente presença de corporações mineiras transnacionais apoiadas por governos nacionais e regionais e por instituições internacionais financeiras e de apoio ao desenvolvimento, e intensamente resistidas por movimentos sociais populares. Neste artigo apresentamos o caso de Andalgalá (uma pequena cidade na Província de Catamarca, na Argentina e as lutas do povo contra corporações mineiras transnacionais e seus aliados. Na tradição da Filosofia da Libertação e do método ana-dialético de Dussel, nos engajamos com o que tem sido denominado "comunidades argentinas do NÃO", expressando sua oposição a formas neocoloniais de desenvolvimento e gestão. Neste artigo estamos especificamente interessados em compreender como dois dispositivos gerencialistas usados pelas corporações mineiras, responsabilidade social corporativa (RSC e pactos de governança, impactam a luta do povo. Acima de tudo, este artigo oferece instantâneos de batalhas na linha de frente do extrativismo. Esperamos ter dado voz àquelas pessoas que normalmente não são ouvidas, criando um espaço para suas visões sobre um tipo diferente de desenvolvimento.
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Estimación de parámetros demográficos en poblaciones nativas antiguas y contemporáneas
Directory of Open Access Journals (Sweden)
Cocilovo, José Alberto
1999-01-01
Full Text Available Se intenta la reconstrucción de los perfiles demográficos para un conjunto de poblaciones asociadas con datos históricos, económicos, contextuales y dataciones concretas. Para la caracterización de la estructura de la población local y regional se emplearon técnicas demográficas que implican el cálculo de parámetros de mortalidad, supervivencia y esperanza de vida. Los resultados obtenidos muestran que los valores de esperanza de vida (exo se distribuyen en el rango desde 13 hasta 35 años. Las tasas brutas de natimortalidad se incluyen en el intervalo de 29 0/00 y 76 0/00. Se observan situaciones dramáticas que seguramente se encuentran asociadas con el rápido proceso de extinción como en el caso de la población Selk'nam, sufriendo el fuerte impacto de la conquista y de la colonización. Un hecho similar se refleja en Santa María (Catamarca por el efecto de las epidemias de viruela y de sarampión que afectaron principalmente a la clase infantil. Estos casos presentan valores de ex0 que se encuentran por debajo de las cifras conocidas para poblaciones antiguas pescadoras y agroalfareras. Con respecto a éstas, las estimaciones realizadas de ex0 se distribuyen entre 20 y 25 años indicando en todos los casos también un costoso proceso de supervivencia y de adaptación con los recursos y la tecnología disponible.
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International Nuclear Information System (INIS)
Pla, R.R.; Moreno, M.A.; Ratto, N.R.; Fuente, G. de la; Orgaz, M.
2002-01-01
Application of Neutron Activation Analysis (NAA) to provenience studies of archaeological ceramics involves the determination of clay sources used for their production. This work presents the study on raw materials and its relation to sherd results, on samples from Argentine southern Puna,using NAA. An hypothesis was stated that the Puna region of Chaschuil served as a corridor for the circulation of goods, energy and information, interconnecting large areas and relating to facilities at the bottom of the valley, especially at the Bolson de Fiambala. Potential raw material source locations were sampled both in Puna and valley, considering availability, plasticity, workability and textural fractions of the deposits. Factor analysis was used for evaluation of the results. The graphical representation of the first three factors showed a dense grouping of valley clays with Puna samples as outliers. Within the valley group, those clays from La Troya river appeared closely related to each other. XRD of these samples showed 100 % good quality clays for ceramic manufacture and high presence of clay fraction (17 - 45 % concentration values), with excellent properties regarding their plasticity and workability. The evaluation of a matrix composed of clay and sherd analytical results showed that sherds from valley area were manufactured with local raw materials that included the already sampled sources and others still to be located; that most of Puna sherds were manufactured with raw materials from the valley area, mainly La Troya and that Puna sources of raw materials were not used in the manufacture of those sherds sampled at Puna sites. (author)
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Provenance and paleogeography of the Devonian Durazno Group, southern Parana Basin in Uruguay
Uriz, N. J.; Cingolani, C. A.; Basei, M. A. S.; Blanco, G.; Abre, P.; Portillo, N. S.; Siccardi, A.
2016-03-01
A succession of Devonian cover rocks occurs in outcrop and in the subsurface of central-northern Uruguay where they were deposited in an intracratonic basin. This Durazno Group comprises three distinct stratigraphic units, namely the Cerrezuelo, Cordobés and La Paloma formations. The Durazno Group does not exceed 300 m of average thickness and preserves a transgressive-regressive cycle within a shallow-marine siliciclastic shelf platform, and is characterized by an assemblage of invertebrate fossils of Malvinokaffric affinity especially within the Lower Devonian Cordobés shales. The sedimentary provenance of the Durazno Group was determined using petrography, geochemistry, and morphological studies of detrital zircons as well as their U-Pb ages. Sandstone petrography of Cerrezuelo and La Paloma sequences shows that they have a dominantly quartz-feldspathic composition with a minor contribution of other minerals. Whole-rock geochemical data indicate that alteration was strong in each of the three formations studied; chondritic-normalized REE patterns essentially parallel to PAAS, the presence of a negative Eu-anomaly, and Th/Sc and La/Hf ratios point to an average source composition similar to UCC or slightly more felsic. Within the Cerrezuelo Formation, recycling of older volcano-metasedimentary sources is interpreted from Zr/Sc ratios and high Hf, Zr, and REE concentrations. U-Pb detrital zircon age populations of the Cerrezuelo and La Paloma formations indicate that the principal source terranes are of Neoproterozoic age, but include also minor populations derived from Mesoproterozoic and Archean-Paleoproterozoic rocks. A provenance from the Cuchilla Dionisio-Dom Feliciano, Nico Pérez and Piedra Alta terranes of Uruguay and southern Brazil is likely. This study establishes an intracratonic extensional tectonic setting during Durazno time. Considering provenance age sources, regional paleocurrent distributions and the established orogenic history recorded in SW
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Directory of Open Access Journals (Sweden)
Lomaglio, Delia Beatriz
2015-01-01
Full Text Available Desde una perspectiva bioantropológica las mediciones antropométricas en adultos son exhaustivamente utilizadas en la evaluación morfológica de poblaciones argentinas extintas. La mayoría de los estudios antropométricos en adultos argentinos contemporáneos se limitan a la evaluación de talla, peso e IMC. El objetivo de este trabajo fue describir otras variables antropométricas en adultos del Noroeste argentino (NOA y compararlas con una referencia internacional. Los datos de peso, talla, perímetros (brazo, muslo, pierna, cintura y pliegues (tríceps, subescapular proceden de 881 individuos (526 mujeres; 355 varones sanos de 20-60 años de edad de distintas localidades de Catamarca y Jujuy. Se calcularon estadísticos descriptivos (media y DS por sexo y dos PALABRAS CLAVE adultos; Noroeste Argentino; perímetros; pliegues; antropometría grupos de edad: 20-39 y 40-60 años. Las comparaciones se establecieron con adultos de EEUU de origen mejicano (Centers for Disease Control, CDC 2003-2006 con la prueba t. Se calcularon los percentilos con el método LMS. En ambos sexos y grupos de edad los adultos del NOA presentaron valores significativamente inferiores a los de la referencia en todas las variables consideradas, excepto para pliegues tricipital y subescapular en varones de 40-60 años. No se han encontrado antecedentes antropométricos comparables semejantes para poblaciones argentinas y del NOA. El perfil antropométrico de los adultos del NOA difiere significativamente con respecto a la población de referencia con un origen étnico afín.
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Avila, Héctor G; Santos, Guilherme B; Cucher, Marcela A; Macchiaroli, Natalia; Pérez, Matías G; Baldi, Germán; Jensen, Oscar; Pérez, Verónica; López, Raúl; Negro, Perla; Scialfa, Exequiel; Zaha, Arnaldo; Ferreira, Henrique B; Rosenzvit, Mara; Kamenetzky, Laura
2017-06-01
The aim of this work was to determine Echinococcus granulosus sensu lato species and genotypes in intermediate and definitive hosts and in human isolates from endemic regions of Argentina and Brazil including those where no molecular data is available by a combination of classical and alternative molecular tools. A total of 227 samples were isolated from humans, natural intermediate and definitive hosts. Amplification of cytochrome c oxidase subunit I gene fragment was performed and a combination of AluI digestion assay, High Resolution Melting analysis (HRM) assay and DNA sequencing was implemented for Echinococcus species/genotype determination. E. granulosus sensu stricto (G1) was found in sheep (n=35), cattle (n=67) and dogs (n=5); E. ortleppi (G5) in humans (n=3) and cattle (n=108); E. canadensis (G6) in humans (n=2) and E. canadensis (G7) in pigs (n=7). We reported for the first time the presence of E. ortleppi (G5) and E. canadensis (G6) in humans from San Juan and Catamarca Argentinean provinces and E. canadensis (G7) in pigs from Cordoba Argentinean province. In this work, we widened molecular epidemiology studies of E. granulosus s. l. in South America by analyzing several isolates from definitive and intermediate hosts, including humans from endemic regions were such information was scarce or unavailable. The presence of different species/genotypes in the same region and host species reinforce the need of rapid and specific techniques for accurate determination of Echinococcus species such as the ones proposed in this work. Copyright © 2017 Elsevier B.V. All rights reserved.
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Selección de parejas y homogamia en Salta
Directory of Open Access Journals (Sweden)
Albeza, María V.
2010-01-01
Full Text Available La migración efectiva es estimada en demografía genética considerando los migrantes en edad reproductiva bajo el supuesto que, dejando sus descendientes en la población forman parte integral de ella. Sin embargo, el coeficiente de migración efectiva no considera los casos en que los migrantes se unen entre sí de manera preferencial, por lo que aún cuando integren los efectivos de la población, pueden generar algún grado de estructuración. El Coeficiente H considera a las parejas en sus diferentes combinaciones (ambos del lugar, varón del lugar-mujer de afuera, varón de afuera-mujer del lugar, ambos de afuera midiendo de esta manera el grado de panmixia entre la población local y la fracción migrante. Se calculó H en 11 poblaciones de la provincia de Salta (cinco de la Puna, tres del Valle Calchaquí y tres del Valle de Lerma, una de Tucumán y una de Catamarca. Los valores de H variaron entre -0,3464 (El Pichao, Tucumán y 0,787 (Cobres, Salta. Valores negativos de H (El Pichao y Santa Rosa de los Pastos Grandes indican la tendencia a favorecer uniones exogámicas. Cobres ostenta el mayor H mientras que El Barrial es la población más homogámica de las del Valle Calchaquí y La Isla de las del Valle de Lerma. Contrariamente a lo esperado, la Puna en su conjunto fue menos homogámica que el Valle de Lerma y que el Valle Calchaquí.
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Directory of Open Access Journals (Sweden)
Estela C. Mlewski
2018-05-01
Full Text Available Stromatolites are organo-sedimentary structures that represent some of the oldest records of the early biosphere on Earth. Cyanobacteria are considered as a main component of the microbial mats that are supposed to produce stromatolite-like structures. Understanding the role of cyanobacteria and associated microorganisms on the mineralization processes is critical to better understand what can be preserved in the laminated structure of stromatolites. Laguna Negra (Catamarca, Argentina, a high-altitude hypersaline lake where stromatolites are currently formed, is considered as an analog environment of early Earth. This study aimed at characterizing carbonate precipitation within microbial mats and associated oncoids in Laguna Negra. In particular, we focused on carbonated black pustular mats. By combining Confocal Laser Scanning Microscopy, Scanning Electron Microscopy, Laser Microdissection and Whole Genome Amplification, Cloning and Sanger sequencing, and Focused Ion Beam milling for Transmission Electron Microscopy, we showed that carbonate precipitation did not directly initiate on the sheaths of cyanobacterial Rivularia, which dominate in the mat. It occurred via organo-mineralization processes within a large EPS matrix excreted by the diverse microbial consortium associated with Rivularia where diatoms and anoxygenic phototrophic bacteria were particularly abundant. By structuring a large microbial consortium, Rivularia should then favor the formation of organic-rich laminations of carbonates that can be preserved in stromatolites. By using Fourier Transform Infrared spectroscopy and Synchrotron-based deep UV fluorescence imaging, we compared laminations rich in structures resembling Rivularia to putatively chemically-precipitated laminations in oncoids associated with the mats. We showed that they presented a different mineralogy jointly with a higher content in organic remnants, hence providing some criteria of biogenicity to be searched
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International Nuclear Information System (INIS)
Hongn, F.; Kirschbaum, A.; Ferreira, L.; Morello, O.; Guidi, F.; Anesa, J.; Rubinstein, N.
2010-01-01
The Carboniferous Los Ratones pluton is composed by two main facies: equigranular and porphyric. The uranium mineralization hosted by the metamorphic rock on the NW border of the pluton is related to a fluor- rich greisen related to the equigranular facies. The detailed mapping of the pluton host rock and the uranium mineralization shows a well-defined structural control on both the granite emplacement, particularly on the porphyric facies, and on the migration of the mineralized fluids. Four sets of fractures participate on this control. The two main with N and NE trends coincide clearly with the west and northwest border of the pluton as well as with the high-grade uranium manifestations. The third and fourth ones respectively corresponds to E-W and NW striking fractures, which are less developed in relation to the main fractures considering their frequency and size. Fractures of the four sets are high dipping close to vertical, attitude corroborated by geophysical studies in the area where the NE fractures are the best developed. In addition to the mentioned features, granite-related acidic and basic dikes follow mainly these orientations. The fracture sets seem to be related to a high-east dipping meridian fault system with right horizontal main movement component and subordinate normal displacement. These faults partially reactivated heterogeneities of the metamorphic rocks, mainly the dominant foliation. Changes on the strike of these fractures formed dilatant zones where magmatism and related mineralization were concentrated. (authors) [es
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Ecología de la conducta urbana y calidad de vida: el efecto ambiental del basural "La Aguada"
Directory of Open Access Journals (Sweden)
March, Juan Manuel
2003-01-01
Full Text Available El objetivo del presente trabajo es determinar e identificar patrones conductuales humanos y sus efectos materiales que conducen al deterioro ecosistémico del ambiente urbano periférico de la ciudad de San Fernando del Valle de Catamarca. Dentro de este plan, se focaliza en un efecto ambiental concreto: la formación de un basural en el Norte de la ciudad y sus efectos adversos sobre la salud humana. La metodología empleada corresponde a la antropología ambiental (aplicación de análisis de ecología de la conducta y arqueología de los residuos sólidos urbanos (clasificación y composición de RSUs. Los resultados fueron los siguientes: la composición del basural es mayoritariamente de residuos inorgánicos, siendo el efecto de la chatarra y hojalatas el más peligroso para la salud humana (contaminación de napas subterráneas por percolación de metales pesados; el deterioro visual del paisaje por los residuos constituye un efecto evidente; los patrones de conducta asociados a la formación del basural tienen como base la visión del ecosistema periurbano como un área no valorada (ecosistema sin función definida en la ecología del comportamiento urbano. Conclusión: para arribar a una neutralización del basural es necesario modificar patrones en la ecología de la conducta urbana que conduzcan a un cambio en la visión del ecosistema periférico de la ciudad. Asimismo, es preciso realizar análisis de los estratos acuíferos presentes bajo el área del basural (posible presencia de metales pesados.
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Uranium deposit types and resources of Argentina
International Nuclear Information System (INIS)
Lopez, L.; Cuney, M.
2014-01-01
The uranium-related activities in Argentina begun in the 1950s and, as a result of the systematic exploration, several types of deposits have been discovered since then: volcanic and caldera-related, sandstone-hosted, vein spatially related to granite (intragranitic and perigranitic) and surficial. The deposits that have been the focus of the most important uranium exploitations are the ones that belong to the volcaniclastic type. These are localized in Permian formations associated with synsedimentary acid volcanism in the Sierra Pintada district (Mendoza province). The volcanic and caldera related type is also present in the Laguna Colorada deposit (Chubut province) located in the San Jorge basin (Cretaceous). Several important uranium mineralisations have been identified in Cretaceous fluvial sandstones and conglomerates, among which the most relevant is the Cerro Solo deposit (Chubut province) that corresponds to the paleochannel structure subtype. Other subtypes of sandstone model have been studied. For instance, the Don Otto deposit (Salta province), located in the Salta Group Basin (Cretaceous - Tertiary), belongs to the tabular U-V subtype. The roll front subtype can be also found in the Los Mogotes Colorados deposit (La Rioja province) which is hosted by Carboniferous continental sandstones. The uranium mineralisations in veins and disseminated episyenites within peraluminous leucogranites of the Sierras Pampeanas (Cordoba and San Luis provinces) represent other types of existing deposits. These granites are Devonian – Carboniferous and the related deposits are comparable to those from the Middle European Variscan. There are also other vein-type uranium deposits located in metamorphic basement in the periphery of high potassium calcalkaline granites (Sierras Pampeanas of Catamarca and La Rioja provinces), where the mineralisation control is mainly structural. The current uranium identified resources of the country are approximately 24,000 tU in the
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Where on Earth can we find Mars? Characterization of an Aeolian Analogue in Northwestern Argentina
Favaro, E. A.; Hugenholtz, C.; Barchyn, T.
2017-12-01
The Puna Plateau of northwestern Argentina is as a promising analogue for Martian aeolian processes owing to its altitude, low atmospheric pressure, aridity, and widespread granular and bedrock aeolian features. The study was conducted in and surrounding the area known as the Campo de Piedra Pómez - a prominent expanse of wind-carved ignimbrite in Argentina's Catamarca Province. To interpret the evolution of this unique laboratory, which is limited by its isolated location and dearth of in situ measurements, we investigated contemporary aeolian sediment transport through a combination of modeled meteorological data, satellite imagery, field measurements, and sediment traps. Our objective is to utilize modeled meteorological data, satellite imagery, and field measurements and samples to characterize the aeolian environment here to base analogue studies. Satellite imagery from Terra MODIS, GeoEye, and Ikonos indicate recent large-scale aeolian sediment transport events and migration of gravel in the region. A prominent, region-wide sediment transport event on 14 August 2015 coincided with synoptic-scale pressure patterns indicating a strong Zonda (Foehn) winds. Sediment traps and marbles provide additional evidence of wind-driven transport of sand and gravel. Yet, despite the body of evidence for sediment transport on the Puna Plateau, modeled wind data from the European Center for Midrange Weather Forecasting suggest wind rarely attains the speeds necessary to initiate sediment transport. This disconnect is reminiscent of the Martian Saltation Paradox which suggested winds on Mars were incapable of mobilizing sediment, despite widespread evidence from rover, lander, and satellite observations. This raises questions about: (i) the suitability of modeled wind data for characterizing aeolian processes on both planets, and (ii) the possibility that most geomorphic work is conducted in extreme, but infrequent events in this region (possibly analogous to Mars). We
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Securing water for the cities.
Satterthwaite, D
1993-01-01
Many cities in developing countries have grown so much that they can no longer provide adequate, sustainable water. Over pumping in Dakar and Mexico City has forced those cities to obtain water from ever more distant sources. In Dakar, the result has been saltwater intrusion. Overpumping has caused Mexico City to sink, in some areas by as much as 9 m, resulting in serious damage to buildings and sewage and drainage pipes. Other cities facing similar water problems are coastal cities in Peru (e.g., Lima), La Rioja and Catamarca in Argentina, cities in Northern Mexico, and cities in dry areas of Africa. For some cities, the problem is not so much ever more distant water supplies but insufficient funds to expand supplies. Bangkok and Jakarta both face saltwater intrusion into their overdrawn aquifers. Even through agriculture is the dominant user of water in most countries, demand concentrated in a small area exhausts local and regional sources and pollutes rivers, lakes, and coasts with untreated human and industrial waste. Most cities in Africa and Asia do not have a sewerage system. Further, most cities do not have the drains to deal with storm water and external floodwater, causing frequent, seasonal flooding. The resulting stagnant water provides breeding grounds for insect vectors of diseases (e.g., malaria). The problems in most cities are a result of poor management, not lack of water. Reducing leaks in existing piped distribution systems from the usual 60% loss of water to leaks to 12% would increase the available water 2-fold. Another way to address water shortages would be commercial, industrial, and recreational use of minimally treated waste water, such as is the case in Madras and Mexico City. Political solutions are needed to resolve inadequate water supply and waste management.
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Marcial, Guillermo; de Lampasona, Marina P; Vega, Marta I; Lizarraga, Emilio; Viturro, Carmen I; Slanis, Alberto; Juárez, Miguel A; Elechosa, Miguel A; Catalán, César A N
2016-02-01
The aerial parts of Lippia integrifolia (incayuyo) are widely used in northwestern and central Argentina for their medicinal and aromatic properties. The essential oil composition of thirty-one wild populations of L. integrifolia covering most of its natural range was analyzed by GC and GC-MS. A total of one hundred and fifty two terpenoids were identified in the essential oils. Sesquiterpenoids were the dominant components in all but one of the collections analyzed, the only exception being a sample collected in San Juan province where monoterpenoids amounted to 51%. Five clearly defined chemotypes were observed. One possessed an exquisite and delicate sweet aroma with trans-davanone as dominant component (usually above 80%). Another with an exotic floral odour was rich in oxygenated sesquiterpenoids based on the rare lippifoliane and africanane skeletons. The trans-davanone chemotype is the first report of an essential oil containing that sesquiterpene ketone as the main constituent. The absolute configuration of trans-davanone from L. integrifolia was established as 6S, 7S, 10S, the enantiomer of trans-davanone from 'davana oil' (Artemisia pallens). Wild plants belonging to trans-davanone and lippifolienone chemotypes were propagated and cultivated in the same parcel of land in Santa Maria, Catamarca. The essential oil compositions of the cultivated plants were essentially identical to the original plants in the wild, indicating that the essential oil composition is largely under genetic control. Specimens collected near the Bolivian border that initially were identified as L. boliviana Rusby yielded an essential oil practically identical to the trans-davanone chemotype of L. integrifolia supporting the recent view that L. integrifolia (Gris.) Hieron. and L. boliviana Rusby are synonymous. Copyright © 2015 Elsevier Ltd. All rights reserved.
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Directory of Open Access Journals (Sweden)
Federico J Degrange
2010-08-01
Full Text Available The South American phorusrhacid bird radiation comprised at least 18 species of small to gigantic terrestrial predators for which there are no close modern analogs. Here we perform functional analyses of the skull of the medium-sized (approximately 40 kg patagornithine phorusrhacid Andalgalornis steulleti (upper Miocene-lower Pliocene, Andalgalá Formation, Catamarca, Argentina to assess its mechanical performance in a comparative context. Based on computed tomographic (CT scanning and morphological analysis, the skull of Andalgalornis steulleti is interpreted as showing features reflecting loss of intracranial immobility. Discrete anatomical attributes permitting such cranial kinesis are widespread phorusrhacids outgroups, but this is the first clear evidence of loss of cranial kinesis in a gruiform bird and may be among the best documented cases among all birds. This apomorphic loss is interpreted as an adaptation for enhanced craniofacial rigidity, particularly with regard to sagittal loading. We apply a Finite Element approach to a three-dimensional (3D model of the skull. Based on regression analysis we estimate the bite force of Andalgalornis at the bill tip to be 133 N. Relative to results obtained from Finite Element Analysis of one of its closest living relatives (seriema and a large predatory bird (eagle, the phorusrhacid's skull shows relatively high stress under lateral loadings, but low stress where force is applied dorsoventrally (sagittally and in "pullback" simulations. Given the relative weakness of the skull mediolaterally, it seems unlikely that Andalgalornis engaged in potentially risky behaviors that involved subduing large, struggling prey with its beak. We suggest that it either consumed smaller prey that could be killed and consumed more safely (e.g., swallowed whole or that it used multiple well-targeted sagittal strikes with the beak in a repetitive attack-and-retreat strategy.
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Franchini, Marta; Impiccini, Agnes; Oleary, Sol; Ríos, FranciscoJavier; Schalamuk, IsidoroB
2009-01-01
Agua Rica es un yacimiento deCu (Mo-Au) de clase mundial en el cual las alteraciones-mineralizaciones tipopórfido y epitermal de alta sulfuración que normalmente distan 1 km en sentidovertical, están localizadas en el mismo nivel de erosión. En el sectoroccidental de la sección analizada, el pórfido Seca Norte preserva relictos dealteración potásica del estadio de alteración temprano de alta temperatura conla mineralización de Cu (Mo, Au) encapsulada en un halo fílico donde lacalcopirita, la ...
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Directory of Open Access Journals (Sweden)
Gisel Padula
2013-12-01
Full Text Available This study assesses the evolution of underweight, stunting, overweight and obesity prevalence in schoolchildren from Azampay between 1995 and 2004. The sample includes children between 6 and 13 years of age (1995: 32; 2004: 42. The recorded variables were Age (A, Weight (W and Height (H. Weight-for- age (W//A, Height-for-age (H//A (WHO reference 2007, -2 SD and body mass index (BMI (The International Obesity Task Force, with the values set out therein, were estimated. Epi-Info 6.0 software was used for statistical evaluation (χ2 p ≤ 0.05%.We observed a drop in underweight to the present (from 11.54% to 3.45%. Likewise, stunting and overweight decreased (the former, from 6.25% to 0%, and the latter from 6.25% to 4.76%. Differences were not statistically significant. Obesity prevalence was zero. Overall, new strategies for survival due to the deterioration of traditional patterns of subsistence, have not adversely affected the growth of children
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International Nuclear Information System (INIS)
Gaucher, C.; Poire, D.G.; Pamoukaghlian, K.; Gomez Peral, L.; Finney, S.; Valencia, V.; Blanco, G.
2007-01-01
We report U-Pb ages of detrital zircons from samples of five Neoproterozoic sandstone units deposited on the Rio de la Plata Craton (RPC) in Uruguay and Argentina. Quartz-arenites of the Piedras de Afilar Formation show typical Transamazonian ages, with peaks at 2.00-2.07, 1.87 and 1.78 Ga. However, the most important zircon population is Mesoproterozoic, showing maxima at 1.49, 1.35, 1.25 and 1.0 Ga. Zircons recovered from two sandstone levels in the Arroyo del Soldado Group (Yerbal and Cerros San Francisco formations) are mostly Archean in age, with maxima at 3.2 and 2.7 Ga. Palaeoproterozoic zircons are also prominent in this unit, with peaks at 2.45 and 2.18, with the latter a typical Transamazonian age. Two samples from the Sierras Bayas Group in Tandilia (Argentina) show different age spectra. Sandstones of the Villa Monica Formation show a unimodal zircon population of Transamazonian age (peak at 2.13 Ga). Sandstones of the Cerro Largo Formation are characterized by a dominant Transamazonian zircon population (peaks at 2.15, 2.0 and 1.79), but also important Archean-lowermost Palaeoproterozoic (3.33, 2.99, 2.7, 2.47 Ga) and Mesoproterozoic peaks (1.55, 1.23 and 1.06). The abundance of Mesoproterozoic detrital zircons is surprising. A proto-Andean, Mesoproterozoic belt is suggested as the source of the Mesoproterozoic detritus. Archean rocks of the RPC crop out only in the Nico Perez Terrane in Uruguay, suggesting that the Nico Perez Terrane was much closer to Tandilia than it is today. The sinistral reactivation of the Sarandi del Yi Shear Zone in the Cambrian, as a result of tangential collision of the Cuchilla Dionisio-Pelotas Terrane, may explain this observations. The absence of Neoproterozoic zircons shows that the studied units were deposited in a stable continental margin opening to the East and South. These Neoproterozoic basins had obviously no contribution whatsoever from Brasiliano-Pan African belts, supporting the idea of Cambrian terrane
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An empirical formulation to describe the evolution of the high burnup structure
Energy Technology Data Exchange (ETDEWEB)
Lemes, Martín; Soba, Alejandro; Denis, Alicia
2015-01-15
the open literature and with simulations performed by other authors. The results of these separate tests are quite satisfactory so, the next step will be the incorporation of this model as a new subroutine of the DIONISIO code, to expand the application range of this general fuel behavior simulation tool.
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Haustein, María Carolina; Palliotto, Diana; Korzenieswki, María Isabel
2013-01-01
Una de las metas siempre vigente en las empresas desarrolladoras de software, es mejorar el proceso de desarrollo, para lo cual, se fueron fijando y ejecutando distintas estrategias, la más recurrente fue la creación de nuevas metodologías. Hasta que a principios del siglo XXI, se advirtió que lo que fallaba en la gran parte de las empresas, era la gestión en el desarrollo de software, tarea esta, sumamente importante, ya que se encarga de la planificación, asignación de recursos, la document...
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Directory of Open Access Journals (Sweden)
Aylen Capparelli
2008-01-01
Full Text Available Mediante una aproximación experimental se caracterizan los atributos macromorfológicos cuantitativos de productos intermedios y residuales derivados de Prosopis chilensis y P. flexuosa (Algarrobo blanco y Algarrobo negro respectivamente que potencialmente podrían llegar a formar parte del registro arqueobotánico. Se provee descripción morfoanatómica de la vaina y la semilla de las especies tratadas. Se elaboró harina no refinada y refinada, añapa, aloja y arrope, siguiendo técnicas tradicionalmente utilizadas en el Valle de Hualfín, Catamarca, Argentina, las cuales fueron registradas por la autora en trabajos previos. Se concluye que el análisis cuantitativo de restos macrobotánicos de Prosopis, en conjunto con el cualitativo, permite la identificación de diferentes etapas de procesamiento del Algarrobo. Para ello resulta esencial la distinción entre las dos especies. La proporción de diferentes categorías de semillas y endocarpos es útil para distinguir la harina refinada de la no refinada. Esta última podría indicar la manufactura de patay, ulpo o aloja. Los residuos de la añapa y aloja se caracterizan por presentar semillas con testa plegada, enrollada o levantada, o carecer de ella, y sus cantidades se encuentran disminuidas o aumentadas con respecto a la cantidad inicial de harina utilizada dependiendo de si las semillas que se recuperan son enteras o fragmentadas. Los residuos del arrope se identifican por poseer grandes piezas de epicarpo y porque todos los endocarpos correspondientes a la cantidad de artejos utilizados inicialmente en su preparación se encuentran presentes. Dichos endocarpos se encuentran cerrados, y excepto en el caso de los residuos de arrope, se considera que la mayoría de las asociaciones arqueológicas de restos de Prosopis representa una proporción muy baja del volumen de materia que le dio origen en su contexto dinámico del pasado.
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Directory of Open Access Journals (Sweden)
Horacio Machado Aráoz
2013-07-01
Full Text Available Normal 0 21 false false false ES-AR X-NONE AR-SA A partir de la constatación de las grandes transformaciones sociales provocadas por el desembarco de la megaminería transnacional en la Provincia de Catamarca, el presente trabajo se plantea abordar el análisis de la conflictividad ‘minera' desde la perspectiva de sus impactos microbiopolíticos, esto es, en el plano de los cuerpos, las emociones y los sentimientos. Considerando que se trata de un aspecto crucial de los procesos sociales que se verifican en los nuevos escenarios del extractivismo minero, este trabajo procura desarrollar una ecología política de las emociones como clave para caracterizar los conflictos mineros, así como los efectos eco-biopolíticos que se producen en las comunidades locales intervenidas. Apelando a registros etnográficos, se exponen diferentes dimensiones de los cambios sociales resultantes de las políticas mineras sobre los cuerpos y las emociones. Con los conceptos de fiebre del oro y mineralización social, se busca brindar una hermenéutica crítica de estos procesos orientada a visibilizar lo que se entiende como sus rasgos y efectos neocoloniales. /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Tabla normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:Arial; mso-bidi-theme-font:minor-bidi;}
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Sheldon, N. D.; Cotton, J. M.; Hren, M. T.; Hyland, E. G.; Smith, S. Y.; Strömberg, C. A. E.
2015-12-01
A commonly used tool in paleotectonic and paleoaltimetry studies is the oxygen isotopic composition of authigenic carbonates formed that formed in lakes or soils, with both spatial (e.g., shoreline to mountain top) or temporally resolved records potentially providing constraints. However, in many cases there is a substantial spread in the oxygen isotope data for a given time period, often to the point of allowing for essentially any interpretation of the data depending upon how they have been used by the investigator. One potential way of distinguishing between different potential paleotectonic or paleoaltimetric interpretations is to use carbon isotope and plant microfossil (phytolith) analyses from the same paleosols to screen the oxygen isotope data by looking for evidence of evaporative enrichment. For example, if both inorganic (carbonate) and organic carbon isotopes are measured from the same paleosol, then in it possible to determine if the two isotope record equilibrium conditions or if they record disequilibrium driven by kinetic effects. In the former case, the oxygen isotope results can be considered reliable whereas in the latter case, the oxygen isotope results can be considered unreliable and could be culled from the interpretation. Similarly, because the distribution of C4 plants varies as a function of temperature and elevation, the presence/absence or abundance of C4 plant phytoliths, or of carbon isotope compositions that require a component of C4 vegetation can also be used to constrain paleoelevation by providing a maximum elevation constraint. Worked examples will include the late Miocene-Pliocene of Catamarca, Argentina, where phytoliths and organic carbon isotopes provide a maximum elevation constraint and can be used to demonstrate that oxygen isotopes do not provide a locally useful constraint on paleoelevation, and Eocene-Miocene of southwestern Montana where organic matter and phytoliths can be used to select between different potential
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Directory of Open Access Journals (Sweden)
Silvina Vigliani
2005-01-01
Full Text Available El sitio Bajo del Coypar II (BC II es un conjunto de estructuras de pequeñas dimensiones ubicado sobre una saliente de la ladera de los cerros del Coypar, frente y alrededor del cual se distribuye una gran superficie de campos de cultivo prehispánicos, (Bajo del Coypar I de aproximadamente 1000 ha. En un trabajo anterior se postuló que este amplio sistema de producción agrícola se originó hacia el final del proceso regional tardío (ca. 1300 AP en asociación con el crecimiento del principal centro habitacional de la región, La Alumbrera (Olivera et.al, 1994 y que luego fue apropiado y ampliado por el Incario. En el presente trabajo se plantean tres objetivos generales: conocer el tipo de actividades que se realizaban en el conjunto de estructuras de BC II, establecer la asociación que había entre este conjunto de estructuras y el sistema de producción agrícola e identificar posibles cambios en el uso del espacio a lo largo del tiempo. En un principio se pensó que Bajo del Coypar II formaba parte de la ampliación del espacio productivo implementada por el Imperio Incaico. Las investigaciones llevadas a cabo en el mismo permitieron determinar que efectivamente hacia las etapas más tardías y en asociación con el Incario había una estrecha relación con el sector agrícola, evidenciado en una alta frecuencia de vasijas para el almacenaje y/o el procesamiento de sustancias secas. Sin embargo, también revelaron ocupaciones más tempranas vinculadas a grupos o unidades domésticas con un desarrollo creciente de las prácticas agrícolas. De este modo, la actividad agro-pastoril fue, en este sector de la Puna meridional, mucho más temprana de lo que pensábamos.
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Gracias a Dios que coamí. Los orígenes del cristianismo en Iberoamérica y El Caribe, siglos XV-XX
Directory of Open Access Journals (Sweden)
EDUARDO HOORNAERT
2011-10-01
Full Text Available Desde o momento em que Maximiliano Salinas publicou sua Historia del pueblo de Dios en Chile em 1987, ele inova em termos de pesquisa sobre temas que tradicionalmente caem fora do campo de visao do historiador cristao. A inovaçao de 1987 visava aspectos heurísticos, pois mencionado livro partia de folhetos populares, cânticos, benditos, refroes, poesias. Com seu mais novo ensaio, Gracias a Dios que comí, Maximiliano Salinas completa o trabalho heurístico anterior por importantes inovaçoes no campo hermenéutico. O ensaio apresenta o painel de um cristianismo pouco analisado na literatura mas intensamente praticado por descendentes de indígenas, africanos mas também portugueses (fértil fronteira com o Islam. Ele insiste na positividade das culturas que encaram a Deus como fonte da subsistencia, quem nos dá o pao para comer, as pernas para dançar, o ânimo para transformar o trabalho em festa. Ele fala de um Deus cristao dionisíaco. Trata-se de uma inusitada memória crista, e apagada nos textos ortodoxos do cristianismo histórico relegada ao mundo dos textos apócrifos, mas que encontra fortes concordâncias nas culturas azteca, quechua e mapuche onde se vive o trabalho como festa, onde Deus tem maos (para trabalhar e entranhas (para compartir, onde a comida é uma hierofania (as comidas sagradas e o paraíso um deleite culinário. Aí Deus nao é mais o 'preceptor absoluto' mas o 'poeta' (no sentido original: quem faz, quem executa a obra. Postula-se dessa maneira uma releitura global do cristianismo, na linha do livro Dionisios, reíz de la vida indestructible, da autoria de K. Kerényi (Barcelona 1998: «La cultura mediterránea del vino fue el fondo común y concreto de diversos elementos, tales como la fundación del cristianismo...». O Apolo da ciência, o Pluto da riqueza e o Mercúrio do comercio cedem lugar ao Dioniso davida. A partir da vida rejeita-se o 'blanco perfecto', que se manifesta no ‘preceptor exclusivo’ no
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Directory of Open Access Journals (Sweden)
López, J. P.
1992-12-01
Full Text Available A petrographic and structural study of units from Copacabana Range in the Northwestern Pampean Ranges is presented. Two facies of deformed granitoids were recognized. Rocks of both facies are classificated as mylonite schists, mylonite gneisses and protomylonites. First would have formed at temperature of 3500 C and 15 km of deep. Protomylonite would have formed at lower temperatures and deeps. Undeformed granitoids and ortogneis are also descript.Structural data and the analysis of some kinematic indicators suggest that a main shear plane strikes NNW, inclined to the east, with vergence to the west. Geometric analysis, realized in base to petrographic diagrams of c-axis of quartz and mica cleavage suggest an orthorhombic fabric.Se realiza un estudio petrológico estructural de las unidades que componen el extremo septentrional de la Sierra de Copacabana, que se localiza en el ámbito de las Sierras Pampeanas Noroccidentales. Entre éstas se reconocen dos épocas de deformación de los granitoides; de acuerdo a la clasificación de Higgins (1971 corresponden a esquistos miloníticos, gneises miloníticos y protomilonitas. Los primeros se habrían formado a temperaturas superiores a los 3500 C y a profundidades de unos 15 km, bajo un régimen cuasi plástico de deformación, mientras que las condiciones de formación de las protomilonitas corresponden a una zona de transición elástico-friccional a cuasiplástico, a temperaturas y profundidades algo menores.Además se describe también la facies granítica no deformada, que se halla en contacto neto con las anteriores y un ortogneis que representa la roca de caja en la que se instruyeron los granitoides.Los datos estructurales y observaciones de indicadores cinemáticos sugieren un plano de cizalla principal de rumbo NNW e inclinación al este, cuyo movimiento relativo es de carácter inverso, produciendo un cabalgamiento con vergencia al W. El análisis geométrico de diagramas petrofábricos de ejes «c» de cuarzo y planos de clivaje de micas sugiere una fábrica ortorrómbica. Los planos de esquistosidad presentes en las rocas se interpretan como planos de deslizamiento.
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Barrera, Maria A.; Chayle, Carolina; Herrera, Claudia M.; Sosa Bruchman, Eugenia C.; Fernández, Natalia E.
2012-01-01
En la actualidad la Minería de Datos (Data Mining) permite, a partir de diversos datos, obtener información sumamente relevante. Por otra parte, la liquidación de haberes es una de las actividades más importante en cualquier empresa y/u organización, la cual está sujeta a posibles errores al momento de efectuarla. Es por ello que la motivación de este trabajo es la de encontrar todas las posibles fallas o comportamientos erráticos, en la emisión de la Liquidación de Haberes de los empleados d...
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Directory of Open Access Journals (Sweden)
Cuervo Pablo
2011-06-01
Full Text Available Abstract In Argentina, human fascioliasis has never been adequately analysed, although having a physiography, climate, animal prevalences and lymnaeids similar to those of countries where the disease is endemic such as Bolivia, Peru and Chile. We performed a literature search identifying 58 reports accounting for 619 cases, involving 13 provinces, their majority (97.7% from high altitudes, in central mountainous areas and Andean valleys, concentrated in Cordoba (430 cases, Catamarca (73, San Luis (29 and Mendoza (28, the remaining provinces being rarely affected. This distribution does not fit that of animal fascioliasis. Certain aspects (higher prevalence in females in a local survey, although a trend non-significant throughout Argentina but not others (patient's age 3-95 years, mean 37.1 years resemble human endemics in Andean countries, although the lack of intensity studies and surveys in rural areas does not allow for an adequate evaluation. Human infection occurs mainly in January-April, when higher precipitation and temperatures interact with field activities during summer holidays. A second June peak may be related to Easter holidays. The main risk factor appears to be wild watercress ingestion (214 during recreational, weekend outings or holiday activities, explaining numerous family outbreaks involving 63 people and infection far away from their homes. Diagnosis mainly relied on egg finding (288, followed by serology (82, intradermal reaction (63, surgery (43, and erratic fluke observation (6. The number of fascioliasis-hydatidosis co-infected patients (14 is outstanding. Emetine appears as the drug most used (186, replaced by triclabendazole in recent years (21. Surgery reports are numerous (27.0%. A long delay in diagnosis (average almost 3.5 years and high lithiasis proportion suggest that many patients are frequently overlooked and pose a question mark about fascioliasis detection in the country. High seroprevalences found in
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2011-01-01
In Argentina, human fascioliasis has never been adequately analysed, although having a physiography, climate, animal prevalences and lymnaeids similar to those of countries where the disease is endemic such as Bolivia, Peru and Chile. We performed a literature search identifying 58 reports accounting for 619 cases, involving 13 provinces, their majority (97.7%) from high altitudes, in central mountainous areas and Andean valleys, concentrated in Cordoba (430 cases), Catamarca (73), San Luis (29) and Mendoza (28), the remaining provinces being rarely affected. This distribution does not fit that of animal fascioliasis. Certain aspects (higher prevalence in females in a local survey, although a trend non-significant throughout Argentina) but not others (patient's age 3-95 years, mean 37.1 years) resemble human endemics in Andean countries, although the lack of intensity studies and surveys in rural areas does not allow for an adequate evaluation. Human infection occurs mainly in January-April, when higher precipitation and temperatures interact with field activities during summer holidays. A second June peak may be related to Easter holidays. The main risk factor appears to be wild watercress ingestion (214) during recreational, weekend outings or holiday activities, explaining numerous family outbreaks involving 63 people and infection far away from their homes. Diagnosis mainly relied on egg finding (288), followed by serology (82), intradermal reaction (63), surgery (43), and erratic fluke observation (6). The number of fascioliasis-hydatidosis co-infected patients (14) is outstanding. Emetine appears as the drug most used (186), replaced by triclabendazole in recent years (21). Surgery reports are numerous (27.0%). A long delay in diagnosis (average almost 3.5 years) and high lithiasis proportion suggest that many patients are frequently overlooked and pose a question mark about fascioliasis detection in the country. High seroprevalences found in recent random
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Bargues, María Dolores; Malandrini, Jorge Bruno; Artigas, Patricio; Soria, Claudia Cecilia; Velásquez, Jorge Néstor; Carnevale, Silvana; Mateo, Lucía; Khoubbane, Messaoud; Mas-Coma, Santiago
2016-05-27
In South America, fascioliasis stands out due to the human endemic areas in many countries. In Argentina, human endemic areas have recently been detected. Lymnaeid vectors were studied in two human endemic localities of Catamarca province: Locality A beside Taton and Rio Grande villages; Locality B close to Recreo town. Lymnaeids were characterised by the complete sequences of rDNA ITS-2 and ITS-1 and fragments of the mtDNA 16S and cox1. Shell morphometry was studied with the aid of a computer image analysis system. Climate analyses were made by nearest neighbour interpolation from FAO data. Koeppen & Budyko climate classifications were used. De Martonne aridity index and Gorczynski continentality index were obtained. Lymnaeid distribution was assessed in environmental studies. DNA sequences demonstrated the presence of Lymnaea neotropica and L. viator in Locality A and of L. neotropica in Locality B. Two and four new haplotypes were found in L. neotropica and L. viator, respectively. For interspecific differentiation, ITS-1 and 16S showed the highest and lowest resolution, respectively. For intraspecific analyses, cox1 was the best marker and ITS-1 the worst. Shell intraspecific variability overlapped in both species, except maximum length which was greater in L. viator. The desertic-arid conditions surrounding Locality A, the semiaridity-aridity surrounding Locality B, and the very low yearly precipitation in both localities, are very different from the typical fascioliasis transmission foci. Lymnaeids are confined to lateral river side floodings and small man-made irrigation systems. Water availability only depends on the rivers flowing from neighbouring mountains. All disease transmission factors are concentrated in small areas where humans and animals go for water supply, vegetable cultures and livestock farming. The unusually high number of DNA haplotypes and the extreme climate unsuitable for F. hepatica and lymnaeid development, demonstrate that the
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Mera y Sierra, Roberto; Agramunt, Veronica H; Cuervo, Pablo; Mas-Coma, Santiago
2011-06-11
In Argentina, human fascioliasis has never been adequately analysed, although having a physiography, climate, animal prevalences and lymnaeids similar to those of countries where the disease is endemic such as Bolivia, Peru and Chile. We performed a literature search identifying 58 reports accounting for 619 cases, involving 13 provinces, their majority (97.7%) from high altitudes, in central mountainous areas and Andean valleys, concentrated in Cordoba (430 cases), Catamarca (73), San Luis (29) and Mendoza (28), the remaining provinces being rarely affected. This distribution does not fit that of animal fascioliasis. Certain aspects (higher prevalence in females in a local survey, although a trend non-significant throughout Argentina) but not others (patient's age 3-95 years, mean 37.1 years) resemble human endemics in Andean countries, although the lack of intensity studies and surveys in rural areas does not allow for an adequate evaluation. Human infection occurs mainly in January-April, when higher precipitation and temperatures interact with field activities during summer holidays. A second June peak may be related to Easter holidays. The main risk factor appears to be wild watercress ingestion (214) during recreational, weekend outings or holiday activities, explaining numerous family outbreaks involving 63 people and infection far away from their homes. Diagnosis mainly relied on egg finding (288), followed by serology (82), intradermal reaction (63), surgery (43), and erratic fluke observation (6). The number of fascioliasis-hydatidosis co-infected patients (14) is outstanding. Emetine appears as the drug most used (186), replaced by triclabendazole in recent years (21). Surgery reports are numerous (27.0%). A long delay in diagnosis (average almost 3.5 years) and high lithiasis proportion suggest that many patients are frequently overlooked and pose a question mark about fascioliasis detection in the country. High seroprevalences found in recent random
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Energy Technology Data Exchange (ETDEWEB)
Iriarte, Adolfo [Catamarca, (Argentina); Lesino, Gabriela [Buenos Aires, (Argentina); Matias, Cesar [Catamarca, (Argentina)
2000-07-01
A special tax reduction to promote agricultural investments in the Province of Catamarca in Argentina has created a strong demand of high quality plants of olive (Olea europea L.), walnut (Junglans regia L.) and fig (Ficus carica L.) trees. The method used for plant propagation consists of three stages: rooting of stem cuttings (two months), growth under controlled conditions in a greenhouse (four to five months) and rustication and acclimatization to outdoor conditions in a half-shadow protected area (three to four months). The plant is ready to be transferred to the field in nine to ten months. The rooting stage cannot take place outdoors in hot, arid and windy climates. This paper refers to the design, construction and monitoring of a building where the ambient temperature, humidity and illumination levels are controlled to promote the growth of roots, maintain the stem hydrated and allow restrained photosynthetic activity. Excellent thermal and agronomic results were obtained with rooting efficiencies of 43 to 75 % in summer and 30 to 60 % in winter for olive stems. [Spanish] La necesidad de produccion de olivo (Olea europea L.), nogal (Junglans regia L.) e higueras (Ficus carica L.) de alta calidad para satisfacer la demanda de los establecimientos agropecuarios, ha obligado a utilizar para la produccion de plantas la tecnica de enraizamiento de estacas semilenosas, lo que permite obtener plantas identicas a la planta madre. En regiones de climas calidos y ventosos los factores climaticos externos dificultan el control y mantenimiento de las condiciones ambientales dentro de los recintos destinados a la produccion de plantas mediante estacas. Esto exige disponer de una camara que permita controlar la temperatura y la humedad simultaneamente obtener niveles de iluminacion natural compatible con las necesidades fotosinteticas de las estacas. En el presente trabajo se describen los aspectos constructivos de una casa de vegetacion, analizandose el balance de calor
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Study of gap conductance model for thermo mechanical fully coupled finite element model
International Nuclear Information System (INIS)
Kim, Hyo Cha; Yang, Yong Sik; Kim, Dae Ho; Bang, Je Geon; Kim, Sun Ki; Koo, Yang Hyun
2012-01-01
A light water reactor (LWR) fuel rod consists of zirconium alloy cladding and uranium dioxide pellets, with a slight gap between them. Therefore, the mechanical integrity of zirconium alloy cladding is the most critical issue, as it is an important barrier for fission products released into the environment. To evaluate the stress and strain of the cladding during operation, fuel performance codes with a one-dimensional (1D) approach have been reported since the 1970s. However, it is difficult for a 1D model to simulate the stress and strain of the cladding accurately owing to a lack of degree of freedom. A LWR fuel performance code should include thermo-mechanical coupled model owing to the existence of the fuel-cladding gap. Generally, the gap that is filled with helium gas results in temperature drop along radius direction. The gap conductance that determines temperature gradient within the gap is very sensitive to gap thickness. For instance, once the gap size increases up to several microns in certain region, difference of surface temperatures increases up to 100 Kelvin. Therefore, iterative thermo-mechanical coupled analysis is required to solve temperature distribution throughout pellet and cladding. Consequently, the Finite Element (FE) module, which can simulate a higher degree of freedom numerically, is an indispensable requirement to understand the thermomechanical behavior of cladding. FRAPCON-3, which is reliable performance code, has iterative loop for thermo-mechanical coupled calculation to solve 1D gap conductance model. In FEMAXI-III, 1D thermal analysis module and FE module for stress-strain analysis were separated. 1D thermal module includes iterative analysis between them. DIONISIO code focused on thermal contact model as function of surface roughness and contact pressure when the gap is closed. In previous works, gap conductance model has been developed only for 1D model or hybrid model (1D and FE). To simulate temperature, stress and strain
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Directory of Open Access Journals (Sweden)
Redactie KITLV
2005-01-01
Full Text Available Sitor Situmorang, Toba na Sae; Sejarah lembaga sosial politik abad XIII-XX (Johann Angerler Raul Pertierra, Science, technology, and everyday culture in the Philippines (Greg Bankoff Françoise Gérard and François Ruf (eds, Agriculture in crisis; People, commodities and natural resources in Indonesia, 1996-2000 (Peter Boomgaard Kennet Sillander, Acting authoritatively; How authority is expressed through social action among the Bentian of Indonesian Borneo (Aurora Donzelli Kathleen M. Nadeau, Liberation theology in the Philippines; Faith in a revolution (Gareth Fisher Roy Ellen, On the edge of the Banda Zone; Past and present in the social organization of a Moluccan trading network (Gregory Forth Roy Ellen, On the edge of the Banda Zone; Past and present in the social organization of a Moluccan trading network (J.M. Gullick I.H.N. Evans, Bornean diaries, 1938-1942 (Fiona Harris S. Margana, Kraton Surakarta dan Yogyakarta 1769-1874 (Mason C. Hoadley Henry Frei, Guns of February; Ordinary Japanese soldiers’ views of the Malayan campaign and the fall of Singapore 1941-42 (Russell Jones Gerrit Knaap and Heather Sutherland, Monsoon traders; Ships, skippers and commodities in eighteenth-century Makassar (J. Thomas Lindblad David W. Fraser and Barbara G. Fraser, Mantles of merit; Chin textiles from Myanmar, India and Bangladesh (Sandra A. Niessen Kees Snoek, E. du Perron; Het leven van een smalle mens (Frank Okker Arthur J. Dommen, The Indochinese experience of the French and the Americans; Nationalism and communism in Cambodia, Laos and Vietnam (Vatthana Pholsena J.H.M.C. Boelaars and A.C. Blom, Mono Koame; ‘Wij denken ook’ (Anton Ploeg James J. Fox and Dionisio Babo Soares (eds, Out of the ashes; Destruction and reconstruction of East Timor (Johanna van Reenen Anke Niehof and Firman Lubis (eds, Two is enough; Family planning in Indonesia under the New Order 1968-1998 (Elisabeth Schr
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Heating systems of special solar-greenhouses; Calefaccion solar de invernaderos especiales
Energy Technology Data Exchange (ETDEWEB)
Iriarte, Adolfo; Bistoni, Silvia [Universidad Nacional de Catamarca, Catamarca (Argentina); Saravia, Luis [INENCO, Universidad Nacional de Salta, Salta (Argentina)
2000-07-01
A research project for producing plants by cuttings propagation is being carried out by the National Institute of Agrarian Technology (Instituto Nacional de Tecnologia Agropecuaria (INTA)). The cuttings propagation technique consists of taking a part of a mother plant (cutting) and putting it in adequate conditions to induce the formation of roots. It is composed of two main stages: the first is conducted under controlled conditions and the second one is to rusticate and acclimatize rootstocks in a half-shadowed protected area. Because of the change of environment for the rootstocks, this technique has a problem of a low percentage of survival. In this paper the facilities and the working of a special greenhouse to rusticate is described in order to allow an appropriate acclimatization before the rootstocks be transferred to the second stage and to secure higher levels of survival. This greenhouse has a double plastic cover and below the second roof it has a aluminum half-shadowed folding curtain. The heating systems for both the greenhouse and hotbed is completed with plastic exchanger-collectors placed on northern and southern sides and an outdoor packed bed. The thermal behavior of the greenhouse, the different elements used and the routine of working are analyzed. The behaviour of the special greenhouse was between the foreseen levels, showing an important decrease of convective and radiative losses and the packed bed an exchangers - collectors gave an adequate amount of energy to the system. [Spanish] La Estacion Experimental Agropecuaria del Instituto Nacional de Tecnologia Agropecuaria (INTA) en la Provincia de Catamarca en Argentina, esta llevando a cabo un proyecto para la produccion de plantas por la tecnica de propagacion agamica o asexual. La misma consiste en separar una parte de la planta (estaca o esqueje) y colocarla en condiciones favorables para que se induzca la formacion de raices. Consta de dos etapas fundamentales: la primera se realiza en un
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Batracofauna de las Yungas Andinas de Argentina: una síntesis
Directory of Open Access Journals (Sweden)
Lavilla, Esteban O.
2000-06-01
Full Text Available La porción argentina de la Ecorregión Yungas Andinas incluye las selvas de montaña de las provincias de Jujuy, Salta, Tucumán y Catamarca, donde se extiende como una faja que se ubica entre los 300 y 3000 m.s.n.m. por aproximadamente 800 km de longitud N-S. Allí se han registrado hasta el momento 39 especies, siendo la familia Leptodactylidae la mejor representada (18 especies, seguida por Hylidae (14, Bufonidae (7 y Microhylidae (1 y de este conjunto el 20% son endemismos. Sin embargo, los estudios en curso indican claramente que estas cifras son sólo indicativas y que el elenco faunístico de anfibios de la región es mucho más rico que lo que imagináramos. Las selvas de montaña del NOA están protegidas por un número proporcionalmente elevado de parques y reservas de jurisdicción nacional o provincial, pero pese a ello grandes superficies están siendo destruidas. La expansión de la frontera agropecuaria, la prospección petrolera, la tala selectiva de especies maderables, la ganadería extensiva y la ejecución de obras civiles de envergadura son acciones reales, mientras que entre las amenazas a corto plazo se encuentran el proyectado camino entre Orán y Humahuaca, a través del Abra de Zenta y los embalses en la alta cuenca del Río Bermejo, alguno de los cuales llegaría a inundar una porción del Parque Nacional Baritú. Grandes superficies han sido reemplazadas por monocultivos (caña de azúcar, tabaco, citrus, legumbres y hortalizas y la destrucción sigue sin que siquiera se aproveche su madera: tala y quema parecen ser la única receta conocida por esta nueva cultura agraria. Pero no sólo se pierde biodiversidad por acción directa. También las selvas remanentes y los frentes de selva que limitan áreas deforestadas están amenazadas por un conjunto de efectos secundarios, que escapan a nuestro control, como ser el aumento de aridez en la región, la erosión de suelos, el efecto de borde y el aumento de CO2. Por todo
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Thirty-five years of geochronology in Uruguay
International Nuclear Information System (INIS)
Bossi, J.; Campal, N; Hartmann, L.A; Schipilov, A.; Pineyro, D
2001-01-01
the Rio de la Plata Craton is considerably modified in morphology and internal structure. The proposal of Bossi et al. (1998) which consists of three terranes in the pre-Devonian of Uruguay; the Cuchilla Dionisio Terrane (CDT) is proposed for the block to the east of the SBSZ. According to this proposal, the age provinces do not coincide with the tectono-stratigraphic units, which improves considerably our knowledge of potential ore deposits and other applications. Some ages about 1780 Ma are known in the PAT and NPT; ages about 550 Ma are determined in the NPT and CDT. The absolute ages are not used anymore as the sole support of evolutionary models (au)