Cinética del secado de tomillo

OpenAIRE

Rocha,Ronicely P. da; Melo,Evandro de C.; Corbín,José B.; Berbert,Pedro A.; Donzeles,Sérgio M. L.; Tabar,Jon A.

2012-01-01

Los objetivos del trabajo fueran estudiar la cinética del secado de tomillo con posterior ajuste de diferentes modelos matemáticos a los datos experimentales y determinar los valores de la difusividad efectiva y energía de activación. Para el desarrollo del experimento de secado fueran utilizadas las temperaturas 30, 40, 50, 60 y 70 oC. El diseño experimental fue de bloques completamente aleatorizados, con tres repeticiones. Para el ajuste de los modelos matemáticos a los datos experimentales...

Thermodynamic methodology for the design of solar dryers operated with flat solar collectors; Metodologia termodinamica para el diseno de secadores operados con calentadores solares planos

Energy Technology Data Exchange (ETDEWEB)

Torres Reyes, Ernestina; Navarrete Gonzalez, Jose L; Ibarra Salazar, Beatriz A; Picon Nunez, Martin [Instituto de Investigaciones Cientificas, Universidad de Guanajuato, Guanjuato, Guanajuato (Mexico)

2000-07-01

In this paper a thermal performance analysis of solar drying process at operating varying conditions is presented. It is described semi-empirical models to thermal characterization of an experimental device. A simulator of thermal performance for operating varying conditions was developed as a part of the procedure of thermal design of solar dryers. On the other hand, it is described a simplified method to design solar collectors based on the determination of minimum entropy generation during the thermal conversion of the solar device by using the thermal analysis procedure established and the method derived of the second law of the Thermodynamics are finally presented. [Spanish] En este trabajo se presenta el analisis termico del comportamiento del sistema -colector solar camara de secado-. Se describen los modelos semi-empiricos con los que se caracterizo termicamente un secador solar experimental del tipo indirecto. Se presenta tambien un procedimiento de diseno de equipo de secado que toma en cuenta las condiciones variables de operacion que presentan los dispositivos solares. Por otro lado se describe un procedimiento simplificado de diseno, basado en un analisis derivado de la segunda ley de la Termodinamica. Esta metodologia se fundamenta en la minima generacion de entropia durante la conversion termica de la energia solar, utilizando colectores solares planos. Finalmente se presentan los resultados del diseno preliminar de equipo de secado utilizando los dos procedimientos mencionados.

Efectos estructurales en el transporte de materia durante el secado de frutas

OpenAIRE

Nieto, Andrea Bibiana

2004-01-01

El secado comercial de frutas involucra usualmente tratamientos de presecado (escalcado y deshidratación osmótica utilizando azúcares) dirigidos ya sea a mejorar la calidad del producto final o a mejorar la cinética de secado. La literatura sobre el efecto de estos tratamientos en la velocidad de transporte de humedad durante el secado convencional es aparentemente contradictoria. Ello puede atribuirse a la complejidad del proceso simultáneo de transferencia de calor y de masa durante el seca...

MODELO CINÉTICO DEL SECADO DE LA PULPA DE MANGO

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Aquiles Ocampo

Full Text Available El propósito de este trabajo fue encontrar un modelo que permitiera predecir el tiempo de secado de la pulpa de mango (Mangifera indica con diferentes condiciones de temperatura. Se construyó un secador de laboratorio en el que se llevaron a cabo pruebas de secado a temperaturas de 55 °C, 60 °C y 65 °C, con una velocidad de aire constante de 2,0 m/s y una humedad relativa controlada de 50%. Se presenta un procedimiento sencillo que convierte el modelo de GAB en una ecuación polinomial de segundo orden. Igualmente, se muestra una manera simple aplicable a procesos similares de secado para establecer su cinética a partir de modelos simplificados de la ecuación clásica de Fick.

Temperatura y humedad relativas en un secador solar de plantas para la salud

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Diego Chaverri

2016-03-01

Full Text Available Se describen las características de un secador solar pasivo, tipo invernadero, que se utiliza para el secado de plantas para la salud en la zona norte de Costa Rica. Se analiza el régimen de temperaturas en función de la radiación solar global recibida durante el proceso de secado. También se analiza el comportamiento de la humedad relativa interna comparada con la humedad relativa ambiente y su relación con las características físicas del secador. El secador presenta características que le permiten mantener un régimen de secado para las plantas.

Secado de café en lecho fluidizado

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Elkin Mauricio López Fontal

2006-01-01

Full Text Available Todo el café se cosecha en grano cereza, el cual se beneficia en forma tradicional o aplicando el método Becolsub o de beneficio ecológico. Una vez lavado el café pergamino obtenido, se seca en forma natural o mecánicamente. Los secadores mecánicos más utilizados son de tipo estático, en los cuales generalmente se presentan problemas de desuniformidad en el contenido de humedad final del grano, la cual debe oscilar entre 10 y 12% b.h. En el presente trabalo de investigación se empleó el sistema de secado mediante fluidización, el cual convierte un lecho de partIculas sólidas en una masa suspendida y expandida que posee muchas de las propiedades de un lIquido. Se diseno y construyó un prototipo de 5.000 g de capacidad, en el cual se secó café balo tres condiciones de temperatura del aire de secado: 42, 46 y 49°C. El tiempo de secado varió de 6 a 8 horas. Se obtuvo una buena uniformidad en el contenido de humedad final del grano, con diferencias menores a 0.86%. Además al grano se le hizo prueba de taza, obteniéndose que el producto presenta caracterIsticas organolépticas de buena calidad.

Development of solar energy education IASEE-Argentina, Arquisur and Alfa-built

International Nuclear Information System (INIS)

Schiller, S. de; Evans, J.M.

1997-01-01

Three educational experiences are presented in this paper on the development of national and regional networks to incorporate renewable energy in curricular programmes. IASEE-Argentina, established in 1990 as the National Section of IASEE, the International Association for Solar Energy Education, was designated in 1993 as the Education Working Group of ASADES, the Argentine Association of Solar Energy. It holds annual meetings to coincide with the ASADES conference. Arquisur is a regional network established by Architectural Faculties of State Universities within the Mercosur Region, covering Argentina, southern Brazil, Paraguay and Uruguay, to promote exchange and development between the 19 faculties involved. A Working Group set up by Arquisur with members from four countries developed the programme for short post-graduate courses on bioclimatic design and rational energy use in buildings, which has been given in Argentina and Uruguay. Alfa-Built, a project supported by the European Union for promoting academic exchange in the field of energy efficient building is also introduced. This paper presents the development and initial results of these educational experiences. (author)

Características de secado de nopal (Opuntia ficus-indica por lecho fluidizado Características de secado de nopal (Opuntia ficus-indica por lecho fluidizado

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Melva López Orozco

2012-02-01

Full Text Available Se investigó el efecto del escaldado y la temperatura del aire de secado en trozos de nopal. El experimento se realizó en un secador de lecho fluidizado a cuatro temperaturas diferentes (50 ºC, 60 ºC, 70 ºC y 80 ºC. Las curvas de secado se obtuvieron al graficar la razón de humedad adimensional (MR contra el tiempo de secado; su comportamiento se modeló utilizando los modelos de Henderson-Pabis, Potencia, Peleg y Page. Los resultados mostraron que el secado se llevó a cabo principalmente en el periodo de velocidad decreciente. Los valores de la difusividad efectiva (Def variaron de 0.818x10-7 a 3.25x10-7 m2 s-1, dependiendo de las condiciones de secado. Los valores de la energía de activación (Ea fueron de 35.85 kJ/mol para el nopal sin escaldar y 28.21 kJ/mol para el nopal escaldado, respectivamente. Se encontró que los modelos de Peleg y Page fueron los más adecuados para describir el comportamiento del secado de nopal.   The effect of blanching and drying air temperature on nopal pieces was investigated. Their drying behavior in a fluidized bed was studied at four different temperatures (50 ºC, 60 ºC, 70 ºC and 80 ºC. Drying curves were constructed using dimensionless moisture ratio (MR and time; and their behavior was modeled using Henderson-Pabis, Power, Peleg and Page models. The results indicated that drying took place mainly when the period of dry­ing rate decreased. The moisture effective diffusivity (Def values varied from 0.818x10-7 to 3.25x10-7 m2 s-1 depending on drying conditions. The activation energy (Ea values were: 35.85 kJ/mol for the nopal without blanching and 28.21 kJ/mol for the blanching nopal respectively. Peleg and Page´s models were found the most suitable for describing the dry­ing behavior of nopal.

Distribución de temperatura en pilas de mena laterítica expuestas a secado natural

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Yoalbys Retirado-Mediaceja

2014-03-01

Full Text Available En la empresa productora de níquel y cobalto “Comandante Ernesto Che Guevara” de Moa la mena laterítica se expone, en pilas triangulares, al secado natural. Sin embargo, son imprecisos los métodos de cálculo actualmente empleados en la estimación de los parámetros del secado. En este trabajo se estableció, a partir del análisis físico-matemático del secado natural, el modelo matemático para calcular y simular la distribución de temperatura en la mena laterítica durante el secado. Las simulaciones evidencian que la laterita es mala conductora del calor, y que el intercambio térmico por conducción en las pilas es un fenómeno superficial que no incide significativamente más allá de los 9,7 cm de la superficie de secado

Sistemas de lógica difusa en el proceso de secado de café en lecho fluidizado

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Elkin Mauricio López Fontal

2005-09-01

Full Text Available En el presente trabalo de investigación se experimenta con un sistema de secado de granos en lecho fluidizado. Se utiliza un prototipo en el cual se seca café utilizando varias temperaturas del aire de secado (López, 2002. Los resultados obtenidos muestran que el tiempo de secado varIa entre 6 a 8 horas, el contenido de humedad final del grano presenta uniformidad y en prueba de tasa se obtiene un producto con caracterIsticas organolépticas de buena calidad. Como complemento a lo anterior y teniendo en cuenta el grado de incertidumbre de dicho proceso, median- te sistemas de lógica difusa se plantean en forma preliminar algunas posibles estrategias de control y automatización que presenta el proceso de secado de café en lecho fluidizado, relacionadas con: establecer el punto de fluidización de los granos hümedos, control de la velocidad superficial del aire, y usar al inicio del proceso de secado una temperatura de aire mayor de 50°C .

Alternatives for the assessment of the solar resource in Argentina

International Nuclear Information System (INIS)

Grossi Gallegos, H; Righini, R; Raichijk, C

2005-01-01

In Argentina, from 1972 on, several maps were presented which reported the distribution of global solar irradiation received on a horizontal plane placed at ground level and which used different time bases and information quality, whether estimates obtained from correlations established with other meteorological variables or direct irradiation measurements.n a paper by Grossi Gallegos (1998) 12 charts were presented with the monthly distribution of the mean value of daily global irradiation and one with their annual distribution, using all available information up to that moment in Argentina, whether from daily irradiation data obtained with Argentina s Solarimetric Network pyrano meters or sunshine hours measured by the National Meteorological Service (SMN) Network; the error due to the inclusion of estimates and interpolations was evaluated as lower than 10%.Argentina's Solarimetric Network underwent a continuous decrease in the number of operational stations due to the lack of resources for supporting them.In view of this situation, different alternatives were gradually evaluated which would make it possible to improve the already mentioned available global solar irradiation charts.In this sense, a statistical survey of the adjustment of satellite irradiation data available in Internet (in the base known as Surface Solar Energy (SSE) Data Set, Version 1.00) to the ground values.The objective was evaluating the possibility of using them as a complement to the data that had already been used and their application in order to obtain contour maps in homogeneous zones such as the Pampa Humeda, using geostatistical methods for drawing the irradiation isolines.Root-mean-square errors (RMSE) range from 3.7% to 24.8% depending on the inhomogeneity of the area. Nevertheless, the available temporal series are limited in time and thus their climatic representativity can be questioned.Given the shortage of solar irradiation measured data accurate enough to fulfill

Velocidad de secado en pilas de mena laterítica almacenadas a la intemperie

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Yoalbys Retirado-Mediaceja

2015-10-01

Full Text Available En este trabajo se establece, a partir del balance de energía térmica y el análisis de la transferencia de calor y masa en el secado natural, el modelo matemático para el cálculo y la simulación de la velocidad de secado en pilas de mena laterítica almacenadas a la intemperie, en la empresa productora de níquel y cobalto Comandante Ernesto Che Guevara de Moa. Las simulaciones evidenciaron que la velocidad de secado en las pilas fue, generalmente, inferior a 0,05 %/h y nula en determinados horarios de la mañana y la tarde en los taludes oeste y este, respectivamente.

Variation of the height of the grain bed of an indirect solar bin dryer; Variacion de la altura del lecho del grano en un secador solar indirecto

Energy Technology Data Exchange (ETDEWEB)

Sima, Efrain; Alvarez, Gabriela; Garcia, Saul [CENIDET, Cuernavaca, Morelos (Mexico)

2000-07-01

This paper presents the effect of the variation of the size of the grain bed of an indirect solar bin dryer. This solar dryer was designed and built at the Instituto Tecnologico de Zacatepec and Sima performed the thermal evaluation. The solar bin dryer consists of a bin dryer of 0.92 m diameter and 1 m height (the maximum height of the grain bed is 0.6 m). a 2 m{sup 2} solar collector, a blower and an electronic card to control the inlet air flow of the bin. A load of 36 kg, 45 kg, 52 kg and 64 kg of corn were dried. The heights of the grain were 7.5 cm, 10 cm, 12.5 cm and 17 cm respectively. Solar radiation, inlet air velocity of the solar collector, pressure drop, grain temperature and humidity, ambient temperature and humidity of the drying air were recorded. The initial grain humidity was 27.2% and the final was 11.8%. [Spanish] En este trabajo se presenta el efecto de la variacion del lecho del grano en el proceso de secado de maiz, en un prototipo de secador solar de tipo indirecto. El secador fue disenado y construido en el Tecnologico de Zacatepec y evaluado por Sima, consta de una camara de secado de 0.92 m de diametro y una altura de 1 m. (la altura del lecho maximo de grano posible es de 0.6 m.), un colector solar con un area de 2 m{sup 2}, un extractor de aire y un control electronico para el flujo de aire. El secado de maiz se llevo a cabo con cargas de maiz de 36, 45, 52 y 64 kg. Las alturas en el lecho del grano fueron 7.5, 10, 12.5 y 17 cm. Para cada altura de lecho de grano se realizo una prueba. Durante cada prueba se realizaron mediciones de: radiacion solar, velocidad del aire a la entrada, caida de presion, temperatura del grano, humedad del grano, temperatura del aire ambiente, temperatura y humedad del aire de secado a la entrada y salida del secador. La humedad inicial del grano fue alrededor de 27.2% y la final de 11.8%.

CONSTRUCCIÓN Y VALIDACIÓN DE UN SECADOR SOLAR PARA MADERA ASERRADA

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M. Fuentes-Salinas

2003-01-01

Full Text Available Este trabajo consistió en construir y probar un secador solar para 7.075 m3 de madera aserrada, destinado a los pequeños y medianos productores forestales. Para la construcción se utilizaron materiales disponibles en cualquier región de México y para evaluar su funcionamiento se usó madera de Pinus hartwegii de 2.54 cm de espesor, 2.50 m de largo y anchos variables. La cámara está construida tipo invernadero, con un piso de concreto, estructura metálica para soportar el colector solar, muros a base de bastidores de madera y forro de plástico, y está equipado con dos ventiladores axiales con motor de ½ HP. Para la validación se hicieron dos ensayos de secado, uno en el secador solar y otro secado al aire libre, teniendo como resultado que la madera en el secador solar se secó en el 50 % del tiempo requerido para el secado al aire libre, a un contenido de humedad final del 10 y 12 % respectivamente; además, que la calidad de la madera resultó también mejor en el secador solar. El costo de construcción del secador solar fue de $ 5,227. 25 US Dls. y se estimó un tiempo de construcción de 21 días.

Parámetros de Transferencia de Materia en el Secado de Frutas Mass Transfer Parameters in Fruit Drying

OpenAIRE

Sebastião R Ferreira; Antônio R. S Costa

2009-01-01

Se desarrolló un modelo analítico para obtención de parámetros de transferencia de materia en el secado de frutas. El modelo considera la disminución del radio de las frutas durante el proceso de secado. Con el modelo matemático se predice simultánemente el coeficiente externo de transferencia de materia k m y la difusividad de agua en los frutos D AB. Para probar el modelo se obtuvo en forma expermental datos de masa de agua M A en la fruta versus el tiempo de secado t, además del radio inic...

MODELADO DE LA CINÉTICA DE SECADO DE MANGO PRE-TRATADAS CON DESHIDRATACIÓN OSMÓTICA Y MICROONDAS

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MARIBEL GARCÍA-PATERNINA

Full Text Available La aplicación de tecnologías complementarias como la deshidratación osmótica y microondas como pre-tratamientos al secado convencional contribuye al desarrollo de nuevos productos y favorece la disminución de los cambios físico-químicos y organolépticos en el mango. El objetivo del trabajo fue evaluar el efecto de la deshidratación osmótica con una solución a 65°Brix de 37 a 40°C por 60 min, tratamiento con microondas a 560 W por 7 min y combinado como pre-tratamientos al secado de hojuelas de mango a 70°C en una estufa tipo bandeja y al sol. Las muestras de mango con 11 a 14°Brix y humedad del 80% fueron dimensionadas a 1x1x0,4 cm. La pérdida de peso y el tiempo de secado en los pre-tratados presentaron diferencias significativas (p0,99 se ajustó para el secado sin pre-tratamiento y el modelo de Vermet et al. (R²>0,99 para los pre-tratados. La De ff para microondas y secado en estufa fue mayor. Las hojuelas de mango pre-tratadas con deshidratación osmótica fueron las que mejor conservaron la apariencia de las hojuelas de mango

Diseño e implementación de una estrategia de control predictivo para el secado de arroz paddy

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Alfonso Cubillos Varela

2010-01-01

Full Text Available Este artículo trata sobre la modelación y control del proceso de secado de arroz Paddy en silo inclinado usando técnicas de control predictivo. Para esto se usa un secador a escala 1,10 con capacidad de 25 kilos de grano, totalmente instrumentado donde se puede medir en línea la temperatura y humedad del grano de arroz y del medio ambiente. Además, permite medir y manipular el flujo y temperatura del aire de secado. Con el fin de diseñar el controlador, primero se obtiene un modelo dinámico basado en el principio de capa delgada, luego se diseña e implementa la estrategia de control predictivo, conocida como DMC (Dynamic Matriz Control la cual utiliza la respuesta paso y repuesta libre del sistema para calcular la acción de control óptima. Como consecuencia de este proceso se obtienen resultados prometedores del uso de este tipo de tecnología en el secado de arroz Paddy, a reducción del tiempo de secado, b evitar la pérdida de masa por sobresecado, c garantizar un secado más homogéneo y por lo tanto una mejora en la calidad del arroz y la productividad de la industria molinera de la Región.

Secado de jugos en la industria azucarera como alternativa de diversificación sostenible

OpenAIRE

Felipe Campo; Angela O. Díaz; Yoel Hernández; Dayami Borges

2010-01-01

Se ofrece y comenta una información actualizada sobre los diferentes procesos desarrollados y equipos empleados para el secado de jugos de frutas y de caña. Se hace énfasis en este último y en el empleo de sistemas de secado por gas-suspensión, por constituir estos procesos una simplificación tecnológica del proceso tradicional de producción de azúcar. Se disminuye el número de etapas, equipos, los consumos y el tiempo de duración. Se elimina el empleo de productos químicos y la obtención de ...

GRADO DE SECADO Y EFICIENCIA TÉRMICA DE UN SECADOR DE TORNILLO TRANSPORTADOR DRYING

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MANUEL ALEJANDRO TRIANA

2011-01-01

Full Text Available En un secador tipo tornillo transportador (SCD, se evaluó el grado de secado y la eficiencia térmica en el secado de acetato de calcio dihidratado. El SCD tiene 8.66 m de longitud y 0.17 m de diámetro del tornillo. Las variables del diseño factorial (niveles mixtos 2x3 2 fueron: la velocidad rotacional del tornillo (N en dos niveles, la temperatura (T del sólido alimentado en tres niveles y el flujo de alimentación (C en tres niveles. Durante los experimentos la humedad inicial del sólido estuvo entre 5070%, obteniéndose grados de secado hasta del 14 % y eficiencias térmicas hasta del 88%. A partir de las superficies de respuesta de los anovas obtenidos en StatGraphics 5.1, se realizó la optimización simultánea de las dos variables de respuesta. Usando el concepto de diseño desbalanceado se encontró el óptimo global (45 ºC, 8 L/min y 3 rpm, que coincide con el óptimo observado.

Secado de lúcuma (Pouteria obovata) empleando la técnica de Ventana RefractanteTM

OpenAIRE

Diego Gamboa; Deiner Ibáñez; Marcela Meléndez; Edgar Paredes; Raúl Siche

2014-01-01

La lúcuma es una fruta que experimenta una tendencia creciente a nivel comercial en forma de harina para su empleo en la industria alimentaria. Este estudio tuvo como objetivo obtener harina de lúcuma utilizando el método de secado por ventana refractante y evaluar el efecto del espesor de la pulpa de lúcuma y el tiempo de secado en la humedad y el color de la harina. Fue utilizado un Diseño Compuesto Central Rotable (DCCR) con el tiempo entre 10 y 50 min y el espesor entre 1 y 3 mm. Se emple...

Efecto de las condiciones de secado sobre el endurecimiento de los granos de caraota (Phaseolus vulgaris pretratados con vapor

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María Virginia Mujica

2017-12-01

Full Text Available El endurecimiento de los granos de caraota (Phaseolus vulgaris generado por el almacenamiento en condiciones de alta temperatura y humedad relativa representa una limitante importante para su consumo. El objetivo del presente trabajo fue evaluar el efecto de un tratamiento con vapor y luego secado a los granos de P. vulgaris recién cosechados en la prevención de su endurecimiento. Inicialmente, se construyeron las curvas de secado a 40; 47,5 y 55 ºC. Seguidamente, los granos se trataron con vapor por 8 min 20 s y se sometieron a un proceso de secado, bajo un diseño central compuesto cuyos factores fueron la temperatura del aire (40 y 55 ºC y el tiempo de secado (4 y 8 h. La muestra secada de cada tratamiento se dividió en 3 lotes, el primero se analizó de inmediato y los otros se almacenaron por 5 semanas bajo 2 condiciones distintas 5 ºC/34 % HR y 37 ºC/75 % HR. Las determinaciones realizadas fueron humedad, capacidad de imbibición, tiempo de cocción y actividad de la peroxidasa soluble. El tiempo de secado fue de 6,5; 5 y 2,5 h a 40; 47,5 y 55 ºC, respectivamente, para alcanzar una humedad de 13 % (b.s.. El coeficiente de difusión resultó igual a 3,40x10-9; 3,52x10-9 y 3,87x10-9 m2/s, a 40, 47,5 y 55 ºC, respectivamente. El valor de la energía de activación fue de 7,33 kJ/mol. La aplicación de vapor y posterior secado de los granos no previno su endurecimiento, y este no dependió de la actividad de la peroxidasa soluble. Por lo que se puede inferir que los compuestos fenólicos y la enzima peroxidasa no son los únicos implicados en el mecanismo de endurecimiento de los granos de P. vulgaris.

Elimination of pathogenic bacteria in sewage sludge during the solar drying; Eliminacion de bacterias patogenas en lodos residuales durante el secado solar

Energy Technology Data Exchange (ETDEWEB)

Cota Espericueta, Alma Delia; Ponce Corral, Carlos [Instituto de Ciencias Biomedicas, Universidad Autonoma de Ciudad Juarez, Ciudad Juarez, Chihuahua, (Mexico)

2008-11-15

Planta de Tratamiento de Aguas Residuales de Ciudad Juarez. El dispositivo solar fue propuesto como una alternativa tecnica factible para la reduccion de volumen de las 135 ton de lodos generadas por dia en esta planta. El prototipo experimental tipo invernadero estuvo constituido por un area de captacion de 4.5 m{sup 2} y un lecho de secado de 1 m{sup 3}, ademas de los sistemas de ventilacion, extraccion y adquisicion de datos. El funcionamiento automatico del dispositivo estuvo regulado por las diferencias entre las condiciones internas y externas de las variables de temperatura y humedad. Ademas, se midieron la radiacion solar, el pH y la humedad del lodo. La efectividad del secador fue determinada en terminos termicos y microbiologicos. La perdida de agua en el lodo durante el tratamiento fue el indicativo de la efectividad termica. La depuracion microbiologica fue cuantificada a diferentes tiempos de residencia, mediante los indicadores de contaminacion: coliformes fecales y Salmonella spp. La cuantificacion de ambas bacterias se realizo a traves de la tecnica microbiologica de tubos de fermentacion multiple expuesta en la Norma Oficial Mexicana NOM-004-SEMARNAT-2002. Los resultados termicos asociados al contenido de agua en el lodo mostraron un decaimiento exponencial hasta lograr el 99 % de reduccion de la misma. En lo referente a la efectividad microbiologica, existio dependencia del contenido de las bacterias indicadoras con la cantidad de agua presente en lodo. Para la remocion del 92 % de agua, se verifico la eliminacion de coliformes fecales desde 3.8x10{sup 6} hasta 1.6 NMP por gramo de lodo seco y para Salmonella spp. dicha reduccion fue desde 1.5x10{sup 1}3 hasta 1.9x10{sup 3} NMP por gramo de lodo seco.

Análisis de la influencia del régimen de temperatura en el secado del mineral laterítico

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Elis Efraín-Guzmán

2003-03-01

Full Text Available En las empresas cubanas del níquel con tecnología carbonato amoniacal (CAROM, el proceso de secado no logra los valores óptimos de humedad que garantizan la molienda. En este trabajo se determina la influencia de la humedad de equilibrio, la constante de secado y el coeficiente de transferencia de masa, durante el secado del mineral laterítico a escala de laboratorio. Se obtiene la correlación y regresión de las variables antes mencionadas en función de la temperatura y el contenido de humedad del mineral. Se confirmó experimentalmente que para un rango de temperatura entre 80 y 120 ºC, la de humedad de equilibrio del mineral laterítico se encuentra entre 0,0217 y 0,039 g /g, la constante de secado entre 0,0198 y 0,0077 1/min., y el coeficiente de transferencia de masa entre 0,0044 y 0,0116 g / m2 .min. Se concluye que el exceso de humedad en el mineral que sale de los secadores no está relacionado con el régimen de temperatura usado en el proceso

Solar UVR-induced DNA damage and inhibition of photosynthesis in phytoplankton from Andean lakes of Argentina

NARCIS (Netherlands)

Villafane, VE; Buma, AGJ; Boelen, P; Helbling, EW

2004-01-01

During January 1999, studies were carried out in temperate lakes of the Andean region of Argentina (41degreesS, 71degreesW) to determine the short-term effects of solar ultraviolet radiation (UVR, 280-400 nm) upon natural phytoplankton assemblages. Organisms from one 'clear' (Lake Moreno) and two

Cocoa Bean (Theobroma cacao L.Drying Kinetics Cinética del Secado de Cocoa (Theobroma cacao L.

Directory of Open Access Journals (Sweden)

Ndukwu MacManus Chinenye

2010-12-01

Full Text Available Cocoa (Theobroma cacao L. is widely produced in West Africa and South America and is a great economic tree crop, with so many industrial uses. In this work, the experimental drying kinetics of foreign species was investigated, and the experiments were carried out under isothermal conditions, using heated batch drier at 55, 70 and 81 ºC. The moisture ratio data obtained from change of moisture content with the drying time was fit to two thin layer drying model with good results. A faster drying process was observed at a higher drying temperature resulting in higher drying rates which is advantageous when evaluating costs. Fick’s second law of diffusion was used to predict effective diffusivity using experimental data assuming that the variation of diffusivity with temperature can be expressed by an Arrhenius type function, and the values of diffusivity obtained ranged from 6.137 x 10-10 to 2.1855 x 10-9 m2 s-1 for the temperature used. The Arrhenius constant (D is predicted at 8.64 x 10-4 m2 s-1 while the activation energy was predicted at 39.94 kJ mol-1.El cacao (Theobroma cacao L. es ampliamente producido en el Oeste de África y Sudamérica y es un cultivo de gran importancia económica, con muchos usos industriales. En este trabajo se investigó la cinética del secado experimental de especies foráneas, y se realizaron experimentos bajo condiciones isotérmicas, usando un secador discontinuo en caliente a 55, 70 y 81 °C. Los datos de relación de humedad obtenidos desde el cambio de contenido de humedad con el tiempo de secado se ajustaron a un modelo de secado de dos capas delgadas con buenos resultados. Se observó un proceso de secado más rápido a una temperatura de secado mayor resultando en mayores tasas de secado, lo que es ventajoso al evaluar costos. La segunda ley de difusión de Fick se usó para predecir difusividad efectiva usando datos experimentales, asumiendo que la variación de difusividad con la temperatura puede ser

Energy optimization in industrial drying systems; Optimizacion energetica en sistemas de secado industrial

Energy Technology Data Exchange (ETDEWEB)

Alarcon, Daniel; Ambriz, Juan Jose; Romero Paredes, Hernando [Universidad Autonoma Metropolitana-Iztapalapa, Mexico, D. F. (Mexico)

1994-12-31

The drying of products -meaning the extraction of water or excess humidity down to adequate levels for its conservation and final presentation- demands a large amount of energy, mainly from fuels of fossil origin. Nevertheless, from the standpoint of the energy efficiency, the burning of fuels at very high temperature for using them at a very low temperature, represents an astonishing energy waste, which can be clearly established by means of an energy and exergy balance of these drying installations. In this study the methodology for the energy analysis for industrial drying systems is presented and it is applied to different practical cases. The efficiency of the entire system is evaluated and the losses for each concept, in order to obtain the potential energy saving. [Espanol] El secado de productos, entendido como la extraccion de agua o humedad en exceso, hasta niveles adecuados para su conservacion o presentacion final, demanda una gran cantidad de energeticos, principalmente de origen fosil. No obstante, desde el punto de vista de la eficiencia energetica, el quemar combustible a muy alta temperatura para emplearlos a una muy baja, representa un dispendio energetico impresionante, lo cual puede ser claramente establecido mediante el balance energetico y exergetico de dichas instalaciones de secado. En el presente estudio se presenta la metodologia de analisis energetico de sistemas industriales de secado y se aplica a distintos casos practicos. Se evalua la eficiencia total del sistema y las perdidas por cada concepto con la finalidad de obtener los potenciales de ahorro de energia.

EFECTO DE LAS CONDICIONES DE SECADO SOBRE LA CINÉTICA DE DESHIDRATACIÓN DE LAS HOJAS DE MORERA (Morus alba

Directory of Open Access Journals (Sweden)

Mar\\u00EDa Lourdes Pineda-Castro

2009-01-01

Full Text Available El objetivo del presente trabajo fue determinar las cinéticas de deshidratación de la morera bajo diferentes condiciones de temperatura, velocidad y humedad del aire, entre junio y diciembre del 2006, en Costa Ri ca. Forraje de morera (Morus alba de 75 días fue empleado como sustrato. Se evaluó la cinética de deshidratación en un secador convectivo de resistencias eléctricas de bandeja única con diámetro de 0,22 m y carga de 122 ± 1 g hasta una humedad del 5 %. La evaluación se realizó para tres temperaturas de secado (60 °C, 75 °C y 90 °C, dos velocidades de aire (1,0 y 2,5 m/s y dos humedades del aire (12 g/kg aire seco y 45 g/kg aire seco, para un total de 12 tratamie ntos trip licados. Las curvas de secado correspondie ntes se estudia ron según el modelo de decaimiento exponencial de Newton. Se obtuvieron gráficos de velocidad de secado en función del tiempo y la humedad. Las cinéticas de deshidratación presentaron la curva típica del modelo de Newton, con altos coeficientes de correlación. Existió un efecto triple significativo (p<0,05 entre la temperatura, la velocidad y la humedad del aire sobre el tiempo de secado del sustrato; la variable más influyente fue la temperatura, seguida de la velocidad y por último la humedad del aire. El aumento de cualquie ra de estas varia bles implicó una disminución del tiempo de secado. El efecto de la temperatura sobre éste fue más pronuncia do a una velocidad del aire de 1 m/s.

Retención de aroma durante el secado de extracto de café en un sistema cerrado

Directory of Open Access Journals (Sweden)

J.F. Vílchez

2006-01-01

Full Text Available Durante el secado de alimentos líquidos, componentes volátiles presentes en baja concentración que contribuyen al aroma y sabor del producto final son removidos junto con el agua. En consecuencia la calidad del producto final es considerablemente afectada por la cantidad de substancias volátiles que son retenidas durante el proceso de secado. En el extracto de café, por ejemplo, existen cientos de tales compuestos, la mayoría de ellos altamente volátiles por lo que se pierden cuando el extracto es transformado en polvo seco. Independientemente del método utilizado, parece ser imposible evitar completamente la perdida de compuestos volátiles durante el secado. Un método potencial para mejorar la retención del aroma durante el secado es utilizar un sistema que trabaje a ciclo cerrado. Con el propósito de estudiar este proceso una planta piloto que consiste de un secador por aspersión, un secador de lecho fluidizado vibratorio, un sistema de recuperación de vapores e intercambiadores de calor para recalentar el aire reciclado ha sido diseñada y esta en la fase final de instalación en la Facultad de Ingeniería Química de la Universidad Nacional de Ingeniería, en Managua, para hacer un estudio del método potencial de recuperación de aroma del extracto de café. Este estudio tendrá como resultado no solo un café soluble de mejor calidad sino que además un método capaz de mejorar el procesamiento de muchos otros alimentos líquidos.

Desarrollo de técnicas combinadas de secado para la obtención de duraznos deshidratados con bajo contenido de sulfitos

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URFALINO, D.P.

2011-08-01

Full Text Available En el deshidratado de durazno, la aplicación de dióxido de azufre (SO2 juega un importante rol por su efecto antioxidante y conservante. Sin embargo el SO2 y los sulfitos presentan efectos indeseados en la salud de los consumidores: reducen la asimilación de la vitamina B1 y pueden provocar dolores de cabeza crónicos, alteraciones en la memoria y constricciones bronquiales (mayormente en personas asmáticas. Los alimentos tratados con sulfitos son la principal fuente de ingesta del SO2, siendo difícil su reducción o sustitución por el consecuente cambio en las propiedades sensoriales de los mismos, sobre todo en color y sabor. Así, los consumidores podrían rechazar dichas alternativas, a pesar de que éstas pudieran considerarse más saludables. El presente trabajo tuvo por objetivo lograr un producto con bajos contenidos de SO2 a través deldesarrollo de nuevos métodos de procesado e inactivación enzimática sin perder de vista su calidad. Como primera alternativa se evaluó la aplicación de microondas y escaldado con agua caliente como métodos deinactivación de la polifenoloxidasa y la peroxidasa. Por otro lado, se evaluó el deshidratado osmótico combinado con secado convectivo, comparándolo con el secado convectivo tradicional. Como parámetros de calidad en los productos finales se utilizó la velocidad de deshidratado, el color y el contenido residual de sulfitos. Los métodos de inactivación enzimática ensayados no presentaron diferencias significativas, mientras que la combinación de deshidratado osmótico con secado convectivo presentó ventajas respecto al secado convectivo tradicional, logrando un producto con un contenido significativamente menor de sulfitos, excelentecolor y mejores características organolépticas que los productos tradicionales (mayor volumen, mejor palatabilidad. Si bien el secado tradicional presentó tiempos de proceso totales menores al secado combinado, la calidad del producto final

Secado de primeras materias cerámicas por atomización

OpenAIRE

Editorial, Equipo

2016-01-01

El secado por atomización consiste en inyectar una suspensión de arcilla, de pasta o de cualquier otra materia, en aire seco y caliente. El agua se evapora y las partículas, totalmente secas o con el contenido deseado en humedad, se separan de la corriente de aire. Este proceso es muy adecuado para la preparación de pastas para prensado en seco.

Efecto Térmico del Secado por Aspersión sobre los Metabolitos Antioxidantes de la Curuba Larga (Passiflora mollisima baley)

OpenAIRE

Zapata, Karol; Rojano, Benjamín A; Cortes, Farid B

2015-01-01

En este estudio se evalúo la capacidad antioxidante y el contenido de polifenoles del fruto de Curuba larga antes y después del secado por aspersión. El elevado contenido de agua hace de los alimentos hortofrutícolas productos perecederos y de poca vida en anaquel. Métodos de secado garantizan la estabilidad microbiológica de la fruta, aunque inducen pérdidas nutracéuticas en el producto final debido a las altas temperaturas utilizadas. Los resultados revelaron que existe un alto porcentaje d...

Development and evaluation of neural network models to estimate daily solar radiation at Córdoba, Argentina

International Nuclear Information System (INIS)

Bocco, M.

2006-01-01

The objective of this work was to develop neural network models of backpropagation type to estimate solar radiation based on extraterrestrial radiation data, daily temperature range, precipitation, cloudiness and relative sunshine duration. Data from Córdoba, Argentina, were used for development and validation. The behaviour and adjustment between values observed and estimates obtained by neural networks for different combinations of input were assessed. These estimations showed root mean square error between 3.15 and 3.88 MJ m -2 d -1 . The latter corresponds to the model that calculates radiation using only precipitation and daily temperature range. In all models, results show good adjustment to seasonal solar radiation. These results allow inferring the adequate performance and pertinence of this methodology to estimate complex phenomena, such as solar radiation [pt

Secado del orujo en lecho fluidizado-móvil

OpenAIRE

Torrecilla Velasco, José Santiago

2000-01-01

El objetivo fundamental de la presente Tesis Doctoral es validar y optimar un secadero basado en la combinación de dos tipos de contactores como son el lecho fluidizado y el móvil. Para ello se han realizado experimentos de secado de orujo empleando primero contactores por separado (fijo, móvil y fluidizado) se ha estudiado la combinación de los lechos fluidizado y móvil. Desde el punto de vista económico y de calidad del orujo seco se ha demostrado que el secadero más adecuado para realizar ...

EVALUACIÓN DEL EFECTO DE LA TEMPERATURA EN EL SECADO DE POLEN APÍCOLA PROCEDENTE DE DOS ZONAS DE CUNDINAMARCA

OpenAIRE

JOHANNA PATRICIA BARAJAS-ORTIZ; TELMO MARTÍNEZ; EDUARDO RODRÍGUEZ-SANDOVAL

2011-01-01

En este estudio se evalúa la influencia de la temperatura de secado (35°C y 45°C) y el origen del producto (la Calera y Zipaquirá) sobre las características físicas, químicas, y nutricionales del polen seco. Los métodos utilizados para determinar la influencia de los tratamientos son: Caracterización fisicoquímica, actividad de agua, índice de solubilidad, tamaño de partícula, contenido de vitamina C y carotenos. Los resultados confirman que el secado de polen a una temperatura de 45ºC es el ...

Selection of astrophysical/astronomical/solar sites at the Argentina East Andes range taking into account atmospheric components

Czech Academy of Sciences Publication Activity Database

Piacentini, R.D.; García, B.; Micheletti, M.I.; Salum, G.; Freire, M.; Maya, J.; Mancilla, A.; Crinó, E.; Mandát, Dušan; Pech, M.; Bulik, T.

2016-01-01

Roč. 57, č. 12 (2016), s. 2559-2574 ISSN 0273-1177 R&D Projects: GA MŠk(CZ) 7AMB14AR005; GA MŠk LE13012; GA MŠk LG14019; GA MŠk LM2015046 Institutional support: RVO:68378271 Keywords : astrophysical * astronomical * solar: sites * Argentina -Andes: atmospheric components Subject RIV: BN - Astronomy, Celestial Mechanics, Astrophysics Impact factor: 1.401, year: 2016

Process Heat Generation Potential from Solar Concentration Technologies in Latin America: The Case of Argentina

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Isidoro Lillo

2017-03-01

Full Text Available This paper evaluates the potential of solar concentration technologies—compound parabolic collector (CPC, linear Fresnel collector (LFC and parabolic trough collector (PTC—as an alternative to conventional sources of energy for industrial processes in Latin America, where high levels of solar radiation and isolated areas without energy supply exist. The analysis is addressed from energy, economic and environmental perspective. A specific application for Argentina in which fourteen locations are analyzed is considered. Results show that solar concentration technologies can be an economically and environmentally viable alternative. Levelized cost of energy (LCOE ranges between 2.5 and 16.9 c€/kWh/m2 and greenhouse gas (GHG emissions avoided range between 33 and 348 kgCO2/(m2·year. CPC technology stands out as the most recommendable technology when the working fluid temperature ranges from 373 K to 423 K. As the working fluid temperature increases the differences between the LCOE values of the CPC and LFC technologies decrease. When 523 K is reached LFC technology is the one which presents the lowest LCOE values for all analyzed sites, while the LCOE values of PTC technology are close to CPC technology values. Results show that solar concentration technologies have reached economic and environmental competitiveness levels under certain scenarios, mainly linked to solar resource available, thermal level requirements and solar technology cost.

PROPIEDADES TÉCNICO-FUNCIONALES DE LA FIBRA DIETARIA DE CÁSCARAS DE MANGO VARIEDADHILACHA (Mangifera indica L.): EFECTO DEL SECADO POR CONVECCIÓN

OpenAIRE

GUSTAVO ADOLFO HINCAPIÉ LL.; DIANA CAROLINA VÁSQUEZ O; VALERIA SOFÍA GALICIA M; CARLOS AUGUSTO HINCAPIÉ LL.

2014-01-01

Un subproducto de la obtención del jugo de mango es su cáscara; la cual contiene niveles considerables de fibra dietaria que podrían ser utilizados en la elaboración de productos alimenticios, sin embargo, actualmente no es muy aprovechado. El proceso de secado prolonga la vida útil de la cascara y permite que pueda ser adicionada a otros alimentos. En este estudio, se caracterizó fisicoquímicamente la Cáscara de Mango Hilacha (CMH) y se evaluó el efecto de cinco temperaturas de secado sobre ...

Analysis of efficiency of a solar dryer tunnel type of mango pulp; Analisis de la eficiencia de un secador solar tipo tunel para pulpa de mango

Energy Technology Data Exchange (ETDEWEB)

Chagoyan Serrano, Jose [Universidad Autonoma de Baja California Sur, La Paz, Baja California Sur (Mexico)

2000-07-01

A new method to assess the performance of a solar dryer is presented. It describes energy efficiency indicators to improve a commercial dryer design. First, a preliminary dryer design procedure is described step by step. Then, two different modes of a tunnel dryer are investigated: Batch and semi-continue operations. The results of the analysis show that, the thermal efficiency is not sufficient to rate de dryer performance. It is necessary to include the productivity of the drying process and the quality of the dried fruit. The drying process and productivity tend to go hand-in-hand but in opposite directions. That is to say, raising the thermal efficiency reduce the process productivity and conversely. The analysis also suggests that an agreement between the efficiency, productivity and the quality must be specified in the drier design. [Spanish] Se presenta un procedimiento nuevo para evaluar la operacion de un secador solar, con el cual se precisan indicadores de la eficiencia que pueden ser utiles para mejorar el diseno del equipo. Se empieza por describir los pasos de un procedimiento de diseno preliminar de un sistema de secado. Despues, se analizan cualitativamente dos secadores: uno que opera por lotes y el otro de modo semicontinuo. Los resultados del analisis muestran que, la eficiencia termica del equipo no es un criterio suficiente para evaluar su operacion; tambien se requiere tomar encuenta la productividad del proceso de secado y la calidad del producto final. Se concluye que la eficiencia termica y la productividad del proceso son conceptos encontrados. Es decir, la eficiencia termica del equipo no es un criterio suficiente para evaluar su operacion; tambien se requiere tomar en cuenta la productividad del proceso de secado y la calidad del producto final. Se concluye que la eficiencia termica y la productividad del proceso son conceptos encontrados. Es decir, la eficiencia termica solo se puede aumentar a costa de la productividad y viceversa

Evaluación del efecto de la temperatura en el secado de polen apícola procedente de dos zonas de cundinamarca

OpenAIRE

BARAJAS-ORTIZ, JOHANNA PATRICIA; MARTÍNEZ, TELMO; RODRÍGUEZ-SANDOVAL, EDUARDO

2011-01-01

En este estudio se evalúa la influencia de la temperatura de secado (35°C y 45°C) y el origen del producto (la Calera y Zipaquirá) sobre las características físicas, químicas, y nutricionales del polen seco. Los métodos utilizados para determinar la influencia de los tratamientos son: Caracterización fisicoquímica, actividad de agua, índice de solubilidad, tamaño de partícula, contenido de vitamina C y carotenos. Los resultados confirman que el secado de polen a una temperatura de 45ºC es el ...

Secado de lúcuma (Pouteria obovata empleando la técnica de Ventana RefractanteTM

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Diego Gamboa

2014-01-01

Full Text Available La lúcuma es una fruta que experimenta una tendencia creciente a nivel comercial en forma de harina para su empleo en la industria alimentaria. Este estudio tuvo como objetivo obtener harina de lúcuma utilizando el método de secado por ventana refractante y evaluar el efecto del espesor de la pulpa de lúcuma y el tiempo de secado en la humedad y el color de la harina. Fue utilizado un Diseño Compuesto Central Rotable (DCCR con el tiempo entre 10 y 50 min y el espesor entre 1 y 3 mm. Se empleó una temperatura fija de 95°C y lámina mylar (polietileno de tereftalato metalizado como película refractante de 0,1 mm. Se determinó que las condiciones ideales para obtener harina de lúcuma (9,8% de humedad con esta técnica se da cuando el espesor fue 1,3 mm y con un tiempo de 15 minutos; a estas condiciones la difusividad efectiva del agua es de 2,53E-7 m2/s.

Development and evaluation of neural network models to estimate daily solar radiation at Córdoba, Argentina Desenvolvimento e avaliação de modelos de redes neurais para estimação da irradiação solar diária em Córdoba, Argentina

Directory of Open Access Journals (Sweden)

Mónica Bocco

2006-02-01

Full Text Available The objective of this work was to develop neural network models of backpropagation type to estimate solar radiation based on extraterrestrial radiation data, daily temperature range, precipitation, cloudiness and relative sunshine duration. Data from Córdoba, Argentina, were used for development and validation. The behaviour and adjustment between values observed and estimates obtained by neural networks for different combinations of input were assessed. These estimations showed root mean square error between 3.15 and 3.88 MJ m-2 d-1 . The latter corresponds to the model that calculates radiation using only precipitation and daily temperature range. In all models, results show good adjustment to seasonal solar radiation. These results allow inferring the adequate performance and pertinence of this methodology to estimate complex phenomena, such as solar radiation.O objetivo deste trabalho foi desenvolver modelos de redes neuronais, do tipo retropropagação, para a estimação da irradiação solar, a partir de dados de irradiação solar extraterrestre, amplitude térmica, precipitação, nebulosidade e razão de insolação. O treinamento e a validação foram realizados com dados correspondentes a Córdoba, Argentina. O comportamento e ajuste entre os valores observados e os estimados pelas redes foram avaliados para diferentes combinações das variáveis de entrada, que apresentaram valores do erro quadrático médio entre 3,15 e 3,88 MJ m-2 d-1 . Este último valor corresponde ao modelo que calcula a irradiação somente utilizando precipitação e amplitude térmica diária. Os resultados exibem em todos os modelos um ajuste apropriado ao comportamento sazonal da irradiação solar e permitem concluir a pertinência e o adequado desempenho desse método para estimar fenômenos complexos como a irradiação solar.

Efecto de distintos tratamientos de conservación en la actividad antirradicalaria de alcaparras (Capparis spinosa L. cultivadas en Santiago del Estero, Argentina

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Evangelina Adela González

2010-06-01

Full Text Available Capparis spinosa L. es un arbusto cuyos botones florales, conocidos con el nombre de alcaparras, tienen una amplia aplicación en la gastronomía. Las alcaparras se comercializan en distintas presentaciones de acuerdo a los tratamientos de conservación a los que son sometidas. Se estudiaron posibles variaciones en la actividad antirradicalaria de alcaparras argentinas, como resultado de diferentes métodos de procesamiento en relación con el contenido de flavonoides. Se analizaron botones conservados en vinagre y secados en sal, comparándose los valores obtenidos con los botones frescos y secados en estufa a 55 °C. Paralelamente, con el objetivo de explorar nuevas fuentes de sustancias antioxidantes, se analizaron también las hojas de la planta. Los resultados en cuanto a la determinación de flavonoides indicaron que el contenido total en botones frescos correspondió a 37 mg/g de materia seca mientras que en hojas frescas el valor fue de 23 mg/g de materia seca. El contenido de rutina en ambas muestras correspondió a un 86,5 y 95,6 % del contenido total de flavonoides, para botones y hojas frescas, respectivamente. La actividad antirradicalaria, determinada por el método de decoloración del radical 2,2-difenil-1-picril-hidracilo, mostró correlación con el contenido de flavonoides, siendo mayor para botones frescos con un valor equivalente a 46,7 mg/g de muestra seca. En cuanto al efecto de los tratamientos de conservación sobre los botones florales, se observó que la actividad antirradicalaria decrece en el siguiente orden: botones frescos > conservados en vinagre > secados a 55 °C > secados en sal. La mayor retención de la actividad antirradicalaria se observó en el tratamiento de conservación en vinagre, correspondiendo a un 62 % respecto a la actividad del material fresco. Los resultados indicaron que los botones florales al igual que las hojas son una importante fuente de flavonoides, especialmente rutina, incluso despu

Efecto de distintos tratamientos de conservación en la actividad antirradicalaria de alcaparras (Capparis spinosa L. cultivadas en Santiago del Estero, Argentina

Directory of Open Access Journals (Sweden)

Evangelina Adela González

2010-07-01

Full Text Available Capparis spinosa L. es un arbusto cuyos botones florales, conocidos con el nombre de alcaparras, tienen una amplia aplicación en la gastronomía. Las alcaparras se comercializan en distintas presentaciones de acuerdo a los tratamientos de conservación a los que son sometidas. Se estudiaron posibles variaciones en la actividad antirradicalaria de alcaparras argentinas, como resultado de diferentes métodos de procesamiento en relación con el contenido de flavonoides. Se analizaron botones conservados en vinagre y secados en sal, comparándose los valores obtenidos con los botones frescos y secados en estufa a 55 °C. Paralelamente, con el objetivo de explorar nuevas fuentes de sustancias antioxidantes, se analizaron también las hojas de la planta. Los resultados en cuanto a la determinación de flavonoides indicaron que el contenido total en botones frescos correspondió a 37 mg/g de materia seca mientras que en hojas frescas el valor fue de 23 mg/g de materia seca. El contenido de rutina en ambas muestras correspondió a un 86,5 y 95,6 % del contenido total de flavonoides, para botones y hojas frescas, respectivamente. La actividad antirradicalaria, determinada por el método de decoloración del radical 2,2-difenil-1-picril-hidracilo, mostró correlación con el contenido de flavonoides, siendo mayor para botones frescos con un valor equivalente a 46,7 mg/g de muestra seca. En cuanto al efecto de los tratamientos de conservación sobre los botones florales, se observó que la actividad antirradicalaria decrece en el siguiente orden: botones frescos > conservados en vinagre > secados a 55 °C > secados en sal. La mayor retención de la actividad antirradicalaria se observó en el tratamiento de conservación en vinagre, correspondiendo a un 62 % respecto a la actividad del material fresco. Los resultados indicaron que los botones florales al igual que las hojas son una importante fuente de flavonoides, especialmente rutina, incluso despu

Cinética de secado de la yuca (Manihot esculenta Crantz variedad CORPOICA M-tai en función de la temperatura y de la velocidad de aire

Directory of Open Access Journals (Sweden)

Jairo Salcedo Mendoza

2014-12-01

Full Text Available El secado de yuca (Manihot esculenta Crantz variedad CORPOICA M-tai, fue realizado en un secador de bandejas a escala de laboratorio. Muestras de yuca con espesor de 0,2cm y diámetro de 0,4cm fueron colocadas en el equipo en contacto directo con aire caliente, bajo distintas condiciones de operación. Se evaluó el efecto de la temperatura (35, 45 y 55ºC y la velocidad del aire (1,0, 2,0 y 3,0m/s sobre el tiempo de secado y la difusividad efectiva. Los resultados obtenidos indicaron que a una temperatura y flujo de aire de 55°C y 3,0 m/s respectivamente, el tiempo de secado fue de 4,5h, alcanzándose una humedad de 4,87%. Los datos derivados de las curvas de secado fueron ajustados a los modelos de Newton, el de Dos términos exponencial, el de Wang y Singh, el de Henderson y Pabis modificado y el Difusión aproximal. De acuerdo con los resultados el modelo matemático que describió mejor el comportamiento cinético de las curvas de secado fue el modelo Difusión aproximal con una regresión lineal (0,958 ≤ R2 ≤ 0,993. La difusividad efectiva (Df de la yuca varió entre 1,26 x 10-10 y 4,14 x 10-10m2/s y la energía de activación (Ea varió entre 33,66 a 16,16KJ /mol.

Datos experimentales de la cinética del secado y del modelo matemático para pulpa de cupuaçu (Theobroma grandiflorum en rodajas Kinetic drying experimental data and mathematical model for cupuaçu pulp (Theobroma grandiflora slices

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Abraham Damian Giraldo-Zuniga

2010-03-01

Full Text Available En este trabajo fueron obtenidos experimentalmente la cinética del secado de la pulpa de cupuaçu en forma de rodajas con espesor de 0,5 cm. El secado fue realizado utilizándose un secador laboratorial de bandejas, a las temperaturas de 50, 60 y 70 ºC y a la velocidad del aire de secado de 1,5 m/s. De acuerdo con los datos de la cinética del secado se puede observar que cuanto mayor es la temperatura del secado mayor es la velocidad del secado. El tiempo requerido para secar el producto hasta una humedad del 20%, fueron 9,2, 8,1 y 7,3 horas para las temperaturas de secado de 50, 60 y 70 ºC respectivamente. Las curvas experimentales del secado fueron ajustados al modelo difusional de Fick considerándose la muestra como una lámina infinita y al modelo de Page. Los dos modelos se ajustaron bien a los datos experimentales. Los coeficientes de difusión del modelo de Fick variaron de 1.171 a 1.561 m/s².This work examined experimentally the kinetics of drying cupuaçu pulp (Theobroma grandiflorum slices. The experimental runs were driven in a laboratory dryer, at temperatures of 50, 60 and 70 ºC and an air drying velocity of 1.5 m/s. According to the kinetics study, increasing the temperature led to a decrease in drying time. The required drying times were 9.2, 8.1 and 7.3 hours for drying temperatures of 50, 60 and 70 ºC respectively. The experimental drying curves were adjusted to Fick's diffusional model for an infinite lamina with shrinkage and Page model. The diffusion coefficients of the Fick model varied between 1.171 and 1.561 m/s².

Secadores solares - térmicos para granos y frutas para utilizarlo en zonas remotas

OpenAIRE

Delgado, E.; Peralta, J.; Barriga, A.

2009-01-01

Los objetivos principales de esta investigación son: • Dar a conocer la ventaja que tiene el uso de la utilización de la energía solar térmica para sistemas de secadores solares en la disminución de la humedad de los producto. • Valorar la importancia de la conservación energética y ambiental a través del uso de energía limpia. • Dar a conocer diseños de sistema de secado solar para alimentos, principalmente granos y frutas acorde a las características del producto, geográficas, técnicas y so...

ESTUDIO DE LAS PROPIEDADES FÍSICAS Y DE LA CINÉTICA DE SECADO DE GRANOS DE MAIZ COLORADO DURO

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Matías R. Ordóñez

2012-01-01

Full Text Available Se estudió el efecto de la humedad sobre propiedades físicas de granos de maíz Colorado Duro en el rango 17− 35% base seca, y la cinética de secado a temperaturas entre 30− 90°C y a velocidad de 0.43 m/s. El 12.91x10-3 m, diámetro contenido de humedad tuvo efecto significativo sobre la longitud (12.059x10-3− -3 -3 -3 -3 geométrico (7.8x10 − 8.281x10 m, diámetro equivalente (8.18x10 − 8.63x10 m, peso de mil granos (363.6− 421.9 g, ángulo de reposo (10.11− 24.66°, y densidades aparente (0.801− 0.684 g/mL y real (1.339− 1.170 g/mL; pero el ancho, espesor, porosidad y esfericidad no se vieron significativamente afectados. El secado ocurrió en el período de velocidad decreciente, siendo el tiempo de secado y la temperatura las variables significativas sobre la humedad del grano. Los modelos de Page, ecuación difusiva de “tiempos cortos” y una modificación introducida a éste ultimo resultaron adecuados (R2>0.99 para describir los datos. Los coeficientes de difusión de agua estuvieron entre 1.907x10-11 y 6.495x10-11 m2/s, y la energía de activación fue 17.74 kJ/mol.

PROPIEDADES TÉCNICO-FUNCIONALES DE LA FIBRA DIETARIA DE CÁSCARAS DE MANGO VARIEDADHILACHA (Mangifera indica L.: EFECTO DEL SECADO POR CONVECCIÓN

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GUSTAVO ADOLFO HINCAPIÉ LL.

2014-06-01

Full Text Available Un subproducto de la obtención del jugo de mango es su cáscara; la cual contiene niveles considerables de fibra dietaria que podrían ser utilizados en la elaboración de productos alimenticios, sin embargo, actualmente no es muy aprovechado. El proceso de secado prolonga la vida útil de la cascara y permite que pueda ser adicionada a otros alimentos. En este estudio, se caracterizó fisicoquímicamente la Cáscara de Mango Hilacha (CMH y se evaluó el efecto de cinco temperaturas de secado sobre las propiedades técnico-funcionales de la fibra dietaria; Capacidad de Hinchamiento (CH, Capacidad de Retención de Agua (CRA y Capacidad de Adsorción de Lípidos (CAL, características que determinan en gran medida la calidad de la fibra dietaria (FD. Los resultados obtenidos indican que la CMH tiene un contenido de fibra dietaria total, proteína, extracto etéreo, carbohidratos y fibra cruda similar al de otras variedades de mango. La cáscara de mango hilacha seca y molida (CSMH obtenida, es una promisoria fuente de FD, ya que su calidad no se vio afectada significativamente por el proceso de secado empleado en este trabajo.

Actualidad y perspectivas de una bomba de calor de expansión directa con energía solar

OpenAIRE

Gorozabel-Chata, Francis-B.; Carbonell-Morales, Tania

2016-01-01

La bomba de calor de expansión directa con asistencia de energía solar se utiliza en el modo de calefacción para diversas aplicaciones entre las que podemos citar, calentamiento de agua, calentamiento de aire para climatizar edificios, desalinización de agua, secado solar entre otras. El presente trabajo revisa las principales investigaciones sobre esta tecnología enfocando sus aplicaciones para el calentamiento de agua, para lograr este objetivo se describen en detalle la configuración básic...

Sistema de secado combinado para cerámica mediante tecnología microondas para el sector de la cerámica hasta formato 1200

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TECNOLOGIA,SL, BULMA

2010-04-01

Full Text Available New team of passage by technology microwaves for dried laminar of materials of high absorption, and dried green porcelain format until 1200 mm and thicknesses until 25 mm. It allows the elimination of water with improvement of productivity, energetic efficiency and clean technology for processed of marble, natural stone, ceramic tiles, plasters and products in bulk, without broadcasts of CO₂, and respectful with the Nature, allows the dried with low degree. Project manufactured and designed totally by BULMA situated in L’Alcudia protected with national patent number P200931081.

Nuevo equipo de pasaje por tecnología microondas para secado laminar de materiales de alta absorción,y secado de bizcocho en verde formato hasta 1200 mm y espesores hasta 25 mm. Permite la eliminación de humedad con mejora de productividad, eficiencia energética y tecnológicamente limpios para procesado de mármol, piedra natural, cerámica, escayola y productos a granel, sin emisiones de CO₂, y respetuoso con el medio ambiente, permite el secado con bajos gradientes, fabricado y diseñado íntegramente por empresa valenciana BULMA situada en L’Alcudia protegido con patente nacional P200931081 y en tramite internacional.

Cinética del secado de tomillo Drying kinetics of thyme

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Ronicely P. da Rocha

2012-06-01

Full Text Available Los objetivos del trabajo fueran estudiar la cinética del secado de tomillo con posterior ajuste de diferentes modelos matemáticos a los datos experimentales y determinar los valores de la difusividad efectiva y energía de activación. Para el desarrollo del experimento de secado fueran utilizadas las temperaturas 30, 40, 50, 60 y 70 oC. El diseño experimental fue de bloques completamente aleatorizados, con tres repeticiones. Para el ajuste de los modelos matemáticos a los datos experimentales fue realizado el análisis de regresión no lineal, por el método Simplex-Quasi-Newton. Los resultados mostraron que el modelo matemático de Page obtuve un mejor ajuste a los datos experimentales, los valores de los coeficientes de difusividad efectiva variaron entre 3,69 x 10-12 e 1,19 x 10-10 m² s-1 y el valor de la energía de activación fue de 77,16 kJ mol-1.This work aimed to study the drying kinetics of thyme and subsequent adjustment of different mathematical models to the experimental data and to determine the effective diffusivity and the activation energy. In order to conduct the experiment the temperatures of 30, 40, 50, 60, 70 ºC were used. The experimental design employed was in randomized blocks with three repetitions. For the adjustment of the mathematical models to the experimental data non-linear regression was performed using Simplex-Quasi-Newton method. The results showed that the Page model was the one that promoted the best fit of the experimental data to describe the drying kinetics of the thyme leaves. The values of effective diffusivity coefficients ranged between 3.69 x 10-12 and 1.19 x 10-10 m² s-1 and the value of activation was 77.16 kJ mol-1.

SECADO DE UCHUVA (Physalis peruviana L) POR AIRE CALIENTE CON PRETRATAMIENTO DE OSMODESHIDRATACIÓN

OpenAIRE

CASTRO, Adriana M; RODRÍGUEZ, Ligia; VARGAS, Edgar M

2008-01-01

En este trabajo se determinan las condiciones de temperatura más favorables para un proceso de secado de uchuva (Physalis peruviana L) con aire caliente, con deshidratación osmótica (DO) como pretratamiento, utilizando una solución de sacarosa de 70o Brix a 40oC durante 16 horas. Se realiza un seguimiento de la degradación de β-caroteno con el tiempo y la temperatura. En la fruta tratada con aire caliente a 60oC y pretratada con DO, se obtiene una pérdida total de β-caroteno del 98%. La fruta...

Parámetros de Transferencia de Materia en el Secado de Frutas, sin Necesidad de Datos de Disminución de Volumen Mass Transfer Parameters in Fruit Drying, without using Shrinkage Data

OpenAIRE

Sebastião R Ferreira; Antônio R. S Costa

2010-01-01

Se desarrolló una metodología analítica para evaluar parámetros de transferencia de materia en el secado de frutas cilindricas, sin necesidad de conocer datos de disminución de volumen, pero admitiendo implícitamente disminución de su radio en el proceso R. Con el procedimiento se predice el coeficiente externo de transferencia de materia k m, la difusividad efectiva del agua en frutos De f, el número de Biot Bi y el radio promedio Rm durante el secado. Para probar la metodología es necesario...

Mirror Coronograph for Argentina (MICA). Primera Luz

Science.gov (United States)

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

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

Simulación físico-matemática del secado de la zeolita con microondas. // Physical-mathematical simulation of the zeolite drying with microwaves.

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G. Quesada Ramos

2004-01-01

Full Text Available Se realiza una simulación físico-matemática del secado de la zeolita sometida a radiaciones de microondas utilizando la leyde Lambert. Las ecuaciones se expresan en un esquema implícito unidimensional, y se emplea el método numérico dediferencias finitas. La solución del sistema de ecuaciones se realiza por medio del método iterativo de Gauss-Seidel. Losresultados teóricos se comparan con los obtenidos experimentalmente.Palabras claves: Simulación, secado, zeolita, microondas._______________________________________________________________________________AbstractA physical-mathematical simulation of the zeolite drying with microwaves using the Lambert`s law is made. The equationsare expressed in an unidimensional implicit scheme, and the finite differences numeric method is used. The solution of theequations system is carried out by using the Gauss-Seidel´s iterativ method. The theoretical results are compared with thoseexperimentally obtained.Key words: Physical-mathematical simulation, drying, zeolite, microwaves.

Modelación del secado neumático vortiginoso del bagazo de la caña de azúcar//Modulation of sugar cane bagasse pneumatic drying in a vortex

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Eugenio F. Bombino-Matos

2013-09-01

Full Text Available Tomando en consideración los estudios realizados sobre la modelación del movimiento vortiginoso de partículas de bagazo, se realizó el estudio del secado neumático de esta importante biomasa teniendo en cuenta la transferencia de calor y de masa. Se modeló el proceso de secado a través de las ecuacionesfundamentales que describen la cinética del mismo y se compararon los resultados obtenidos con resultados reportados en la literatura especializada sobre mediciones de la variación del contenido de humedad en otros tipos de secadores neumáticos de bagazo para iguales condiciones de operación. Esta modelación permitió realizar simulaciones de este proceso las cuales arrojaron resultados aceptables en cuanto a los valores de disminución del contenido de humedad del bagazo lo que permitirá continuar profundizando en el desarrollo de próximos estudios sobre el tema ya que se evidencia que por esta vía es posible disminuir las dimensiones de los secadores de bagazo.Palabras claves: secado neumático vortiginoso, secado de bagazo, modelación matemática.______________________________________________________________________________AbstractTaking in account the studies carried out about the vortex movement of bagasse particles, the study of pneumatic drying of this important biomass was carried out considering the heat and mass transfer. The drying process was modeled through the fundamentals equations which describe the kinetic of it and theobtained results were compared with results reported in the specialized literature on drying measurements in others kinds of bagasse pneumatics dryers under the same conditions of operation. This modulation permitted to made simulations of this process which produced acceptable results about the decrease humidity values of bagasse and it will permit to continue in the development of next studies about this topic because it is evident that it is possible to reduce bagasse dryer dimensions.Key words

Availability of solar radiation and standards for solar access

Energy Technology Data Exchange (ETDEWEB)

Casabianca, G.A.; Evans, J.M. [Research Centre Habitat and Energy, Facultad de Arquitectura, Diseno y Urbanismo, Universidad de Buenos Aires, Capital Federal (Argentina)

1997-12-31

In southern Argentina, a region between latitudes 38 deg C and 55 deg C S, the heating demand in the residential sector is high while the availability of solar radiation is limited. A new proposal for solar access standards has been developed, taking into account the climatic conditions of each location, the effective availability of solar radiation and the direct sunlight requirements. This study analyses the climatic conditions for the Patagonia, relating heating demand and solar radiation availability in different sites, and presents the development of new sunlight standards that respond to these regional conditions. As a result of this study, the new Argentine standard TRAM 11.603 includes new conditions to protect solar access and provide design recommendations. (orig.) 4 refs.

Efectos de un cultivo de cobertura invernal consociado sobre la dinámica hídrica y la producción del cultivo estival en la región central de Córdoba, Argentina

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L Pietrarelli

2014-06-01

Full Text Available La incorporación de cultivos de cobertura es una práctica agroecológica que actúa sobre los problemas generados por la simplificación productiva. Se estudiaron los efectos de un cultivo de cobertura invernal consociado de Vicia dacycarpa y Trititicum secale sobre la dinámica hídrica y el rendimiento del cultivo de soja. La experiencia se desarrolló en sistemas de producción agrícola, en Lozada (Córdoba, Argentina. El diseño experimental fue de bloques completamente aleatorizados (tres sistemas productivos con dos tratamientos: barbecho y cultivo de cobertura en la secuencia soja-soja. Se calcularon la humedad gravimétrica, volumétrica, disponibilidad de agua útil y porcentaje de agua útil hasta 100 cm, a la siembra del cultivo de cobertura, al momento de su secado y a la siembra del cultivo estival. Se determinó biomasa del cultivo de cobertura y del cultivo de soja posterior. Si bien el contenido hídrico del suelo del cultivo de cobertura al momento del secado fue menor que el testigo, no provocó un efecto negativo en el rendimiento de la soja. Con suficiente precipitación primaveral se logra una acumulación aceptable de biomasa del cultivo de cobertura y una mayor eficiencia en la recarga del perfil superior al momento de la siembra del cultivo estival.

Helosis (Balanophoraceae en Argentina Helosis (Balanophoraceae in Argentina

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José Luis Fontana

2006-07-01

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

SECAFÉ Parte I: modelamiento y simulación matemática en el secado mecánico de café pergamino SECAFÉ Part I: modeling and mathematical simulation in the mechanical drying of parchment coffee

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Alfonso Parra-Coronado

2008-08-01

Full Text Available Se implementó en lenguaje de programación Microsoft Visual Basic 6.0, dos programas de simulación matemática para el secado de café pergamino, tomando como base los modelos de Thompson y de la Universidad del Estado de Michigan (MSU, para lo cual se utilizaron los parámetros determinados en Cenicafé para la simulación matemática del secado de café pergamino. Los programas estiman el funcionamiento de cada uno de los secadores mecánicos de café existentes en Colombia. Se compararon los resultados obtenidos mediante simulación para cada uno de los secadores, con los resultados experimentales obtenidos en Cenicafé, concluyéndose que éstos predicen adecuadamente el secado del café pergamino. Con base en los buenos resultados de la evaluación de los programas, se implementó un único programa de simulación para el secado de café pergamino.A Microsoft Visual Basic 6.0 parchment coffee drying program was implemented. Two separate programs, based on the Thompson and Michigan State University (MSU models, using Cenicafé coffee parameters, were successfully tested for the evaluation of the performance of all mechanical coffee dryers existing in Colombia. The results obtained by means of simulation for each one of the dryers were compared with the experimental results obtained in Cenicafé, resulting in the conclusion that these suitably predict the drying of the coffee parchment. Based on the good results obtained, a unique simulation program was implemented for drying parchment coffee.

Assessing the solar potential of low-density urban environments in Andean cities with desert climates: The case of the city of Mendoza, in Argentina

Energy Technology Data Exchange (ETDEWEB)

Arboit, M.; Fernandez Llano, J.C.; Rosa, C. de [Instituto de Ciencias Humanas, Sociales y Ambientales (INCIHUSA - CONICET), R and D Unit, Laboratorio de Ambiente Humano y Vivienda (LAHV), Adrian Ruiz Leal s/n, Parque General San Martin 5500, Mendoza (Argentina); Diblasi, A. [Facultad de Ciencias Economicas, UNCuyo, Centro Universitario (5500) Mendoza (Argentina)

2008-08-15

Energy use in the built environment is globally recognized as a key issue for sustainable urban development. In tempered-cold arid regions with a generous solar resource, adequate design and technology can substantially reduce the energy demand for space and water heating in urban buildings. This study assessed the solar potential of low-density urban environments in the city of Mendoza, Argentina. The results of the study will be used to develop technical guidelines for urban and energy planning agencies and professionals involved in the production of habitat. The study included the following successive steps: (i) selection of a representative sample of analysis units (city blocks); (ii) selection of a series of urban and building variables; (iii) definition of indicators accounting for solar masking, building's potential use of the solar radiation on the whole urban area, and availability of adequate collecting areas to satisfy high percentages of the energy demand in low-density urban environments; and (iv) insolation of potential collectors simulated by a graphic-computational model developed in the R and D unit. Only the results for solar space heating are presented in this paper. The results, direct and statistical, indicate that it is technically feasible to meet the target solar fractions. At the same time, by means of the solar recycling of existing building stocks, it is possible to considerably reduce the environmental impacts due to the extraction of materials from, and the disposal of solid wastes into, the ecosystem. (author)

Argentina.

Science.gov (United States)

1986-06-01

This discussion of Argentina covers geography, the people, history and political conditions, government, economy, foreign relations, and relations between the US and Argentina. In 1985, the population of Argentina was estimated to be 30.6 million with an estimated annual growth rate of 1.5%. The infant mortality rate is 34.1/1000, and life expectancy is 70.2 years. Argentina, which shares land borders with Bolivia, Brazil, Chile, Paraguay, and Uruguay, is bounded by the Atlantic and the Antarctic Oceans. Descendants of Italian and Spanish immigrants predominate in Argentina, but many trace their origins to British and West and East European ancestors. In recent years, there has been a substantial influx of immigrants from neighboring Latin American countries. The native Indian population, estimated to be 50,000, is concentrated in the peripheral provinces of the north, northwest, and south. What is now Argentina was discovered in 1516 by the Spanish navigator Juan de Solia. The formal declaration of independence from Spain was made on July 9, 1816. In the late 19th century, 2 forces worked to create the modern Argentine nation: the introduction of modern agricultural techniques and the integration of Argentina into the world economy. Argentina has impressive human and natural resources, but political conflict and uneven economic performance since World War II have impeded full realization of its considerable potential. Yet, it is one of the wealthiest countries in Latin America. Among the reasons for the military coup of March 1976 was the deteriorating economy, caused by declining production and rampant inflation. Under the leadership of the Minister of the Economy, the military government focused attention on those immediate problems, and, in 1978, embarked on a new development strategy focusing on the establishment of a free market economy. There was little improvement in the economy, and a new economic plan was introduced in 1985 which has capped inflation by

Drying of mango pulp in a dryer of laboratory tunnel type; Secado de pulpa de mango en un secador de laboratorio tipo tunel

Energy Technology Data Exchange (ETDEWEB)

Pacheco Resendiz, Oscar; Chagoyan Serrano, Jose; Flores I, Alfredo; Rodriguez M, Jose A [Universidad Autonoma de Baja California Sur (Mexico)

2000-07-01

The result of four tests of drying of mango pulp Kent are presented, which were carried out in a dryer of the tunnel type in constant conditions of temperature, speed and absolute humidity of the air. The temperatures at which the tests were conducted were 35, 40, 45 and 50 Celsius degrees. The average speed of the drying air was 2.35 m/s. For the four tests the drying variables were measured for the purpose of controlling the process. The tests were suspended after 10 hours. The initial and final moisture contents of the samples on a wet weight basis for the test at 35 were 87.04% and 58.94% for that at 40 were 87.42% and 17.25%, for that at 45 were 87.55% and 13.29%, and for that at 50 were 87.43% and 48%. The graphs of the evolution of moisture content of the samples dried under the specified conditions are compared. [Spanish] Se presentan los resultados de cuatro pruebas de secado de pulpa de mango Kent, las cuales se realizaron en un secador tipo tunel en condiciones constantes de temperatura, velocidad y humedad absoluta del aire. Las temperaturas empleadas fueron 35, 40, 45 y 50 grados Celsius y la velocidad del aire de secado fue de 2.35 m/s. Para las cuatro pruebas se midieron las variables de secado mencionadas con el fin de controlar el proceso. Las pruebas se suspendieron al cumplirse 10 h. Las humedades inicial y final base humeda de las muestras para la prueba de 35 fueron 87.04% y 58.94%, para la de 40 fueron 87.42% y 17.25% y para la de 45 fueron de 87.55% y 13.29% y para la de 50 fueron de 87.43% y 48%. Se comparan entre si las graficas de la evolucion del contenido de humedad de las muestras que se secaron a las condiciones ya mencionadas.

Incremento de disolución de un derivado del furano mediante la técnica de secado por atomización

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Antonio Iraizoz Barrios

2012-06-01

Full Text Available Objetivo: incrementar la solubilidad en agua del 2-bromo-5-(2-bromo-2-nitrovinyl-furano (G1, un ingrediente farmacéuticamente activo sintetizado por el Centro de Bioactivos Químicos de la Universidad Central de Las Villas, con potente acción bactericida y fungicida, mediante la elaboración de macropartículas de dispersiones sólidas utilizando un proceso de secado por atomización. Métodos: se realizó un ensayo preliminar de secado por atomización de la suspensión de G1, compuesta por: 10 g de G1, 1 g de Aerosil (Aerosil®, Degusa, Bélgica, 1 g de laurilsulfato de sodio y 100 mL de agua. La atomización se efectuó en un equipo de laboratorio (Buchi Mini Dryer spray a 90 ºC. La dispersión sólida obtenida fue caracterizada físico-químicamente mediante difracción de rayos X, granulometría láser por el método de difracción angular, calorimetría diferencial de barrido, microscopia electrónica de barrido y espectrofotometría de absorción infraroja. Resultados: las partículas obtenidas presentaron un pequeño tamaño, forma esférica y un incremento de la cristalinidad del G-1; no se encontraron interacciones entre los componentes de la dispersión ni presencia de productos de degradación, y la solubilidad del G-1 en agua resultó notablemente incrementada. Conclusiones: el producto obtenido por la técnica de secado por atomización incrementó apreciablemente la solubilidad del G1 sin afectar los grupos funcionales, responsables de la actividad terapéutica que se le reportan al ingrediente activo estudiado. Estos alentadores resultados sugieren la necesidad de continuar estudios para la optimización del proceso y realizar al producto obtenido ensayos de estabilidad con el objetivo de su futura inclusión en formas farmacéuticas de dosificación.

Efecto de la temperatura de secado del suelo sobre la repelencia al agua en andisoles bajo cobertura de Pinus patula.

OpenAIRE

Jaramillo Jaramillo, Daniel Francisco

2003-01-01

En dos lotes con Pinus patula en la cuenca de la quebrada Piedras Blancas, con sueldos que tenían antecedentes de repelencia al agua, se llevó a cabo un muestreo intensivo: una muestra cada 5cm, a cuatro profundidades, en transectos de diferente longitud y orientación, con el fin de estudiar el comportamiento del grado de repelencia al agua, mediante el método WDPT, en condiciones de campo y de laboratorio, cuando las muestras eran sometidas a secado a 35 y 105 ºC. Se encontró que al incre...

Influencia del secado lento a baja temperatura en el contenido carotenoide de dos variedades de pimiento (Capsicum annuum L.. Balance biosintético y/o degradativo en función de las condiciones de procesado

Directory of Open Access Journals (Sweden)

Minguez-Mosquera, M. I.

2001-10-01

Full Text Available A study of drying process at low temperature of two varieties of pepper for paprika (Capsicum annuum L. cv Jaranda and Jariza according to the traditional techniques of La Vera region is carried out controlling simultaneously the characteristics of the fruits before and after of the dehydration process and the conditions used. Correspondences have been found between the initial moisture of the fruits, the drying parameters (temperature and time, and the increase and/or loss (including its corresponding quantity in carotenoid pigment content. The favorable conditions to produce a pigment content increase, that indicates the existence of a biosynthetic process, are those including a healthy raw material with high moisture values and temperature of dried moderate - low (50 ºC without extending unnecessarily the dehydration time (just to obtain the adequate texture for the grinding.Se realiza un estudio del proceso de secado de dos variedades de pimiento pimentonero (Capsicum annuum L. cv Jaranda y cv Jariza efectuado a baja temperatura según las técnicas tradicionales de la comarca de La Vera. El control de las características de los frutos antes y después del procesado y de las condiciones de deshidratación en seis procesos de secado han permitido establecer una correspondencia entre la humedad inicial de los frutos, los parámetros de secado (temperatura y tiempo, y la ganancia y/o pérdida (y su correspondiente cuantía en el contenido inicial de pigmentos carotenoides. Las condiciones favorables a una ganancia en pigmentos (que indica la existencia de un proceso biosintético son aquellas en las que se parte de frutos sanos, con altos valores de humedad, temperatura de secado moderada - baja (menor de 50 ºC y sin extender innecesariamente el tiempo de procesado (sólo hasta conseguir la textura adecuada para la molienda.

Empleo del método de secado convectivo combinado para la deshidratación de papaya (Carica papaya L.), variedad Maradol roja

OpenAIRE

Sahylin Muñiz Becerá; Antihus Hernández Gómez; Annia García Pereira; Lilia Méndez Lagunas

2013-01-01

La presente investigación tiene como objetivo evaluar el método de secado convectivo de papaya (Carica papaya L.) variedad Maradol roja, combinado con la aplicación de pretratamientos de osmosis (DOSC) y escaldado simple (ESSC), mediante el efecto de los factores tecnológi- cos del secador: temperatura (40 y 60oC) y velocidad del flujo de aire (2,5 y 1,5 m/s) sobre el comportamiento de las propiedades de calidad de la fruta deshidratada y la cinética del proceso. El pretratamiento de escaldad...

Descripción del coronógrafo a ser instalado en Argentina (MICA)

Science.gov (United States)

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

El ``Coronógrafo de espejo para Argentina'' es un telescopio solar terrestre a ser colocado en el Observatorio Astronómico Félix Aguilar (El Leoncito), antes de finalizar 1996, como parte de un programa de ciencia bilateral entre Alemania y Argentina. Eclipses fotográficos de alta resolución han revelado que la corona solar es altamente estructurada y variable. De hecho, está contínuamente deformada y moldeada por los movimientos convectivos de los extremos de los arcos magnéticos en la fotosfera, estando, en muchas oportunidades, afectada por explosivas liberaciones de energía. MICA, en conjunción con otros telescopios solares espaciales y terrestres, tratará de contribuir al entendimiento de cuestiones fundamentales de la física solar. Entre ellas: cómo la corona está siendo calentada, dónde y cómo el viento solar es acelerado, qué causa los transitorios coronales, etc. Para ello investigará la distribución de los parámetros del plasma y su evolución con el tiempo, la estructura espacial de la corona en fina y gran escala, procesos que ocurren en los transitorios coronales y factores que los disparan, etc. Para responder a estas cuestiones MICA observará la atmósfera solar por sobre el limbo entre 1.1 y 2 radios solares aproximadamente, usando un nuevo tipo de sistema coronográfico que permite suprimir el brillo del disco solar suficientemente bien, tomando las imágenes con una cámara CCD de 1024x1024 pixels, codificada en 12 bits, pudiendo el mismo ser operado en forma remota. En la presente exposición describiremos las características del instrumento, cómo será controlado y qué esperamos observar basados en las imágenes obtenidas por los telescopios de similares características LASCO C1 a bordo del SOHO y PICO (ubicado en el Observatorio de Pic du Midi, Francia).

Assessing the solar potential of low-density urban environments in Andean cities with desert climates: The case of the city of Mendoza, in Argentina. 2nd. Part

Energy Technology Data Exchange (ETDEWEB)

Arboit, M.; Mesa, A.; Fernandez Llano, J.C.; de Rosa, C. [Instituto de Ciencias Humanas, Sociales y Ambientales. (INCIHUSA - CONICET), R+D Unit: Laboratorio de Ambiente Humano y Vivienda, Adrian Ruiz Leal s/n. Parque General San Martin. (5500) Mendoza (Argentina); Diblasi, A. [Facultad de Ciencias Economicas, UNCuyo. Area Ciencias Exactas,(CRICYT - CONICET), Adrian Ruiz Leal s/n. Parque General San Martin. (5500) Mendoza (Argentina)

2010-07-15

Energy use in the built environment is globally recognized as a key issue for sustainable urban development. In temperate-cold arid regions with a generous solar resource, such as those of western Argentina, adequate design and technology can substantially reduce the energy demand for space and water heating in urban buildings. The solar potential of low-density residential urban areas in the city of Mendoza's Metropolitan Area (MMA), has been studied earlier in this research. Several indicators of the solar potential were elaborated. They provide necessary information when planning and designing new urban structures or refurbishing existing ones. However, a more direct indicator, relating the available solar radiation during a heating season to the space volume to be heated, the Volumetric Insolation Factor (VIF), seems to be of most practical use as far as contributing a helpful evaluation indicator, to the above mentioned design processes. The present study follows the methodological steps used in the former research, evaluating comparatively the results of a Graphic-Computational Model and a Multiple Linear Regression Statistical Model. As in the earlier study, the good fit of both models' results clearly point at the reliability of the statistical procedure and its valuable contribution of a simplified calculation tool as its by-product. (author)

Solar energy in Argentina: A profile of renewable energy activity in its national context

Science.gov (United States)

Hawkins, D.

1981-01-01

The following subjects are covered: The country overview; the energy summary; the geopolitical, economic, and cultural aspects of the Republic of Argentina; the energy profile; and international contacts, manufacturers, and projects.

Solar energy in Argentina: a profile of renewable energy activity in its national context

Energy Technology Data Exchange (ETDEWEB)

Hawkins, D.

1981-01-01

The following subjects are included: the country overview; the energy summary; the geopolitical, economic, and cultural aspects of the Republic of Argentina; the energy profile; and international contacts, manufacturers, and projects. (MHR)

Influencia de la adición de un 2% de carbonato de calcio en el proceso de fabricación de los ladrillos de cerámica roja: etapas de secado y cocción

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Dania Betancourt

2013-08-01

Full Text Available El trabajo hace un estudio de la influencia de la adición del 2% de carbonato de calcio en la duración de la etapa de secado y la eficiencia de la etapa de cocción durante el proceso de fabricación de ladrillos de cerámica roja. Dicho estudio se realizó en una fábrica que produce ladrillos huecos con una capacidad instalada de 65000 ladrillos por cada quema .Los resultados del estudio realizado demostraron que la adición de un 2% de CaCO3 a la pasta arcillosa disminuye el tiempo de secado en un 35% con respecto a los ladrillos elaborados sin adición y provoca una disminución del consumo de combustible del 27 % con respecto a quemas anteriores realizadas sin la adición de este fundente debido a la reducción del tiempo de cocción en los hornos.

Aplicación de modelos matemáticos al proceso de secado asistido por infrarrojos de descartes de limón (Citrus limon (L. Burm. F. Cv. Genova

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Luis Puente-Díaz

2013-01-01

Full Text Available Los desechos agroindustriales son uno de los principales problemas ambientales a nivel mundial. Debido a las altas exigencias de calidad, la comercialización de limones de exportación genera grandes cantidades de desechos. Los descartes de limón contienen fibra, pectina, potasio, calcio y vitamina C. Por lo tanto, es importante desarrollar alternativas de procesamiento de estos sub-productos para agregarles valor y aumentar su vida útil. El objetivo de la presente investigación fue la aplicación del secado asistido por infrarrojos, como tecnología emergente, para estudiar el efecto de la temperatura de proceso sobre las cinéticas de secado de descartes de limón a 30, 40 y 50°C. Se utilizaron seis modelos matemáticos de capa fina encontrados en literatura para representar la cinética experimental. Basándose en análisis estadístico, el modelo Logarítmico presentó el mejor ajuste. Los valores de la difusividad efectiva del agua se estimaron en el rango de 9.45× 10-10 – 3.71× 10-9 m/s2. El valor de la energía de activación fue 55.90 kJ/mol.

SIMULACIÓN MATEMÁTICA DEL PROCESO DE SECADO DE LA GRACILARIA CHILENA (GRACILARIA CHILENSIS MATHEMATICAL SIMULATION OF DRYING PROCESS OF CHILEAN GRACILARIA (GRACILARIA CHILENSIS

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Antonio Vega Gálvez

2007-04-01

Full Text Available El objetivo de este trabajo es estudiar y modelar la cinética de secado por aire caliente del alga Gracilaria (Gracilaria chilensis utilizando un secador convectivo diseñado y construido en la Facultad de Ingeniería de la Universidad de La Serena a cinco temperaturas de bulbo seco (30, 40, 50, 60 y 70ºC y velocidad de aire de 2.0±0.2 m.s-1. Para el modelado matemático se utilizan tres modelos empíricos (Newton, Henderson-Pabis & Page. Durante el experimento se observa solamente el periodo de velocidad decreciente, por lo que se utiliza la ecuación de la segunda Ley de Fick para el cálculo de la difusividad efectiva de agua. El proceso de secado presenta humedades finales entre 0.096 g agua/g m.s y 0.061 g agua/g m.s para 30ºC y 70ºC, respectivamente. Tanto la difusividad como los parámetros cinéticos k1, k2 y k3 de los modelos propuestos presentan dependencia con la temperatura y al evaluarlos con la ecuación de Arrhenius se obtienen energías de activación de 39.92, 33.85, 33.49 y 33.83 kJ·mol-1, respectivamente. De acuerdo a los análisis estadísticos que se utilizan (r2, SSE, RMSE y X², el modelo de Page muestra la mejor calidad de ajuste sobre los datos experimentales, otorgando así una buena herramienta para el modelado de la cinética de secado industrial de la Gracilaria chilensis y el cálculo del tiempo de secado a diferentes temperaturas, con el fin de alcanzar un contenido de humedad comercial aceptable internacionalmente.The aim of this research is to study and to model the hot air drying kinetics of Gracialaria algae (Gracilaria chilensis, using a convective drier -designed and built at the Faculty of Engineering of Universidad de La Serena- at five dry bulb temperatures (30, 40, 50, 60 and 70ºC and an air velocity of 2.0 ± 0.2 m.s-1. Three empirical models are used for the mathematic modeling (Newton, Henderson-Pabis & Page. During the experiment, only a falling rate period is observed, hence the Fick's second

Kinetic Study of Convective Drying of Blueberry Variety O’neil (Vaccinium corymbosum L. Estudio de la Cinética del Secado Convectivo de Arándano Variedad O’Neil (Vaccinium corymbosum L.

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A Vega-Gálvez

2009-06-01

Full Text Available The aim of this research was to study and to model the drying kinetics of the blueberry Vaccinium corymbosum L. at three temperatures (60, 70 and 80 ºC with an airflow of 2.0 ± 0.2 m s-1. Modeling of the desorption isotherm was carried out with the GAB (Guggenheim, Anderson and de Boer equation, showing a good fit to experimental moisture data, giving as a result a monolayer moisture level of 0.084 g water g-1 dm. Newton, Henderson-Pabis, Page, Modified Page and Logarithmic mathematical models were applied in the study and in the modeling of the drying kinetics of this fruit. Kinetic parameters k of each model showed dependence on temperature, and were evaluated by an Arrhenius-type equation, with an activation energy of between 36.2 and 54.5 kJ mol-1. Logarithmic and Modified Page models gave the best fits for each drying curve, based on the statistical test determination coefficient, sum square error, root mean sum errors and Chi-square. In consequence, both models are excellent tools for estimating the drying time of this product.El objetivo de esta investigación fue estudiar y modelar la cinética de secado del arándano ( Vaccinium corymbosum L. a tres temperaturas (60, 70 y 80 ºC con un flujo de aire de 2,0 ± 0,2 m s-1. El modelado de la isoterma de desorción se llevó a cabo con la ecuación de GAB (Guggenheim, Anderson y de Boer, mostrando un buen ajuste sobre los datos experimentales de humedad, dando como resultado una humedad de la monocapa de 0,084 g de agua g-1 ms. Se aplicaron los modelos matemáticos de Newton, Henderson-Pabis, Page, Page modificado y Logarítmico para el modelado de la cinética de secado de esta fruta. Los parámetros cinéticos k de cada modelo presentaron dependencia con la temperatura, evaluadas por una ecuación de tipo Arrhenius, con una energía de activación entre 36,2-54,5 kJ mol-1. Los modelos Logarítmico y Page modificado obtuvieron el mejor ajuste para cada curva de secado, basado en las

Tomato Infrared Drying: Modeling and some Coefficients of the Dehydration Process Secado de Tomate por Infrarrojo: Modelación y algunos Coeficientes del Proceso de Deshidratación

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Paulo Cesar Corrêa

2012-06-01

, el presente trabajo tuvo como objetivo el estudio del proceso de deshidratación en tres diferentes estados de maduración de rebanadas de tomate (Solanum lycopersicum L. por medio del secado por infrarrojo, usando dos métodos: aproximación del período constante de deshidratación a la teoría de la transferencia de calor y masa para el termómetro de bulbo húmedo; y al período decreciente de la deshidratación a la teoría de difusión de líquidos. Se utilizaron frutos de tomate cv. Santa Cruz. Tres estados de maduración fueron obtenidos: verde (estado 1, naranja (estado 2 y rojo (estado 3. Modelos matemáticos usualmente utilizados para representar el secado de productos agrícolas fueron ajustados a los datos experimentales del secado de tomate. El coeficiente de difusión efectivo fue obtenido por medio del ajuste del modelo matemático de difusión líquida a los datos experimentales del período decreciente de deshidratación. El modelo Dos Términos representó mejor el proceso del secado de rebanadas de tomate. La humedad crítica para la deshidratación de tomate fue 2.97 kgw kgdm-1. Existe un período inicial de deshidratación en que la tasa de secado alcanzó el máximo (aproximadamente 1.05 kgw kgdm-1, alrededor de 3 min. Tres diferentes métodos fueron utilizados para obtener los valores del coeficiente efectivo de difusión, incluyendo el método de elementos finitos, en que presentó los menores valores de la suma de desviaciones mínimas al cuadrado, 1.00 x 10-7 m² s-1. El coeficiente global de transferencia de calor fue 12.45 W m-2 K-1, y el coeficiente global de transferencia de masa fue 0.0105 m s-1.

ESTUDIO DE LA CINÉTICA FISICOQUÍMICA DEL MANGO (Mangifera indica L. Var. Tommy Atkins) TRATADO POR MÉTODOS COMBINADOS DE SECADO

OpenAIRE

MORENO, ANGÉLICA; LEÓN, DAVID; GIRALDO, GERMAN; RIOS, EUNICE

2010-01-01

El seguimiento cinético de los parámetros de peso, actividad de agua (a w) y ganancia de sólidos solubles (ºBrix) en cubos de mango (Mangifera indica L. Var. Tommy Atkins) fueron evaluados durante los procesos de deshidratación osmótica con o sin pulso de vacío (DO y DOPV) en combinación con el secado por aire caliente (SAC) o a vacío (VAC). Se observó que la DOPV y el SAC son los métodos más efectivos ya que requieren menor tiempo de proceso para alcanzar sus niveles adecuados de humedad par...

Solar light induced removal of arsenic from contaminated groundwater: the interplay of solar energy and chemical variables

Energy Technology Data Exchange (ETDEWEB)

Garcia, M.G.; D' Hiriart, J.; Giullitti, J.; Hidalgo, M. del V. [Universidad Nacional de Tucaman (Argentina). Centro de Investigaciones y Transferencia en Quimica Aplicada; Lin, H.; Custo, G.; Litter, M.I. [Comision Nacional de Energia Atomica, Buenos Aires (Argentina). Unidad de Actividad Quimica; Blesa, M.A. [Comision Nacional de Energia Atomica, Buenos Aires (Argentina). Unidad de Actividad Quimica; Universidad Nacional de General San Martin (Argentina)

2004-11-01

The removal of arsenic by solar oxidation in individual units (SORAS) is currently being explored as a possible economic and simple technology to treat groundwater in Bangladesh and India. Hydroarsenicism affects also large regions of America, especially Argentina, Chile, Mexico and Peru. In this paper, the efficiency of arsenic removal by solar oxidation coupled with precipitation of iron (hydr)oxide, was assessed under various experimental conditions, both on samples of synthetic water and of groundwater of the province of Tucuman (Argentina). The results demonstrate that the underlying chemistry is very complex, and the efficiency is affected often in unpredictable ways by changes in the chemical matrix, or by changes in the operative conditions. Oxides generated from ferrous salts are more efficient than solids formed by hydrolysis of Fe(III); alkalinity contents (bicarbonate) is also important to permit the adequate precipitation. Addition of small amounts of citric acid (lemon juice) is beneficial, but at larger concentrations the effect is negative, probably because of interference in the formation of the solid. The effect of solar irradiation is variable, depending on the other experimental conditions. Although it is possible to remove As partially without solar irradiation under certain special conditions, a procedure versatile enough to cope with waters of different compositions must be based in the use of solar energy. Light plays the role of accelerating the oxidation of As(III) to As(V), and also affects the nature of the solid and, hence, its sorptive properties. The rationale of the effect of light is therefore appreciably more complex than in the case of heterogeneous photocatalysis with TiO{sub 2}. (Author)

ESTUDIO DE LAS PROPIEDADES FÍSICAS Y DE LA CINÉTICA DE SECADO DE GRANOS DE MAIZ COLORADO DURO

OpenAIRE

Matías R. Ordóñez; María C. Gely; Ana M. Pagano

2012-01-01

Se estudió el efecto de la humedad sobre propiedades físicas de granos de maíz Colorado Duro en el rango 17− 35% base seca, y la cinética de secado a temperaturas entre 30− 90°C y a velocidad de 0.43 m/s. El 12.91x10-3 m), diámetro contenido de humedad tuvo efecto significativo sobre la longitud (12.059x10-3− -3 -3 -3 -3 geométrico (7.8x10 − 8.281x10 m), diámetro equivalente (8.18x10 − 8.63x10 m), peso de mil granos (363.6− 421.9 g), ángulo de reposo (10.11− 24.66°), y densidades aparente (0....

Efecto de la osmodeshidratación y secado en la retención de carotenos en fruto de zapallo Effect of the osmo dehydration and drying on carotenoids retention of squash fruit

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Sanín Ortiz G.

2008-12-01

Full Text Available El fruto de zapallo aporta provitamina A en forma de a-caroteno, b-caroteno y luteína que se pueden degradar al deshidratarlo para estabilizar la materia seca. El objetivo de la investigación fue analizar la retención de carotenos en respuesta al proceso de acondicionado por osmodeshidratación (DO con melaza pura y secado con aire caliente (AC sin exposición al sol Vs. secado a exposición parcial al sol (S. El mejor rendimiento de materia seca estable correspondió a AC con protección de eritorbato de sodio (ES y sin él en solución al 5% con 8.5 y 14 horas de permanencia en el proceso y rendimiento másico entre 99.45% y 98.5% respectivamente, que correspondió a los siguientes modelos de pérdida de sólido húmedo:Y = 454.66935e -0.2648339x r=0.965 y Y = 463.07976e-0.16167667x (r=0.978 respectivamente. El caroteno total en fruto fresco osciló entre 1114.9 y 1365.8 mg. g-1, y 222.2, 60.2 y 158.5 de a-caroteno, b-caroteno y luteína respectivamente El proceso de acondicionado de fruto de zapallo hasta materia seca estable con 12% de humedad, requiere secado con aire caliente (55°C durante nueve horas con flujo de aire de 10 m.s-1 en ausencia de brillo solar, para retener hasta 45% de carotenos totales y lograr materia prima idónea hasta con 66.8, 33.5 y 44.7 mg. g-1 de a-caroteno, b-caroteno y luteína respectivamente.The squash fruit provides provitamin A in form of alpha-carotene, beta-carotene and lutein that can be degraded when dehydrated to stabilize dry matter. The objective of the research was to analyze the carotene retention in response to the osmo dehydration conditioning process (OD with pure molasses and hot air drying (HA without sun exposure vs. partial sun exposure (S. The best stable dry matter yield corresponded to HA with and without sodium eritorbate protection (SE in 5% solution with 8.5 and 14 hours of permanence in the process and mass yield between 99.45% and 98.5% respectively, that corresponded to the

Argentina

International Nuclear Information System (INIS)

Tanis, S.; Ramberg, B.

1990-01-01

Argentina has embarked on an ambitious domestic nuclear research and energy program. The venture promises to provide the nation with the infrastructure to play an important role in the nuclear export market in the years ahead. Buenos Aires built its program on a foundation of international support and assistance that overlay an emerging sophisticated industrial and scientific establishment. The foreign contribution sensitized Argentina to opportunities in the global market. This paper reports that Argentina operates two heavy-water/natural uranium reactors, Atucha I and Embalse. Producing, respectively, 320 MW(e) and 600 MW(e), they supply roughly 10 percent of the country's electricity. With a capacity factor of 84 percent, Atucha I is among the best operated plants in the world. Plans call for a third, 745 MW(e) power plant, Atucha II, to go on line in the early 1990s. During this period, construction also may begin on three 300 MW(e) plants, although the country's foreign indebtedness plus cost overruns in earlier construction will place a heavy burden on these plans

Empleo de metodos numericos para el ajuste de los coeficientes de difusividad (D) y convectivo de transferencia de masa (hm) en el secado de alimentos

OpenAIRE

Arranz Saiz, Francisco Javier; Correa Hernando, Eva Cristina; Jiménez Ariza, Heidi Tatiana; Diezma Iglesias, Belen; Garcia-Herrero, Javier; Robla Villalba, José Ignacio; Barreiro Elorza, Pilar

2011-01-01

Los modelos matemáticos de transferencia de humedad desde el alimento al medio circundante durante el proceso de secado dependen de dos parámetros: coeficiente de difusividad efectiva D y coeficiente convectivo de transferencia de masa hm, cuya determinación experimental se basa en la consideración de un sistema difusivo sencillo de solución analítica bien conocida. Para el caso, que aquí nos ocupa, de difusión monodimensional en una lámina infinita de grosor 2l, la solución analítica de ...

EVALUACIÓN DEL SECADO DE PEREJIL APLICANDO TÉCNICAS DE DESHIDRATACIÓN OSMÓTICA COMO PRETRATAMIENTO EVALUATION OF PARSLEY DRYING APPLYING OSMOTIC DEHYDRATION TECHNIQUES AS PRETREATMENT

Directory of Open Access Journals (Sweden)

Maribel García Mahecha

2010-12-01

Full Text Available En este estudio se evaluó el efecto de la temperatura de secado (50 y 60 °C y los diferentes tipos de pretratamientos (sin pretratamiento, deshidratación osmótica y deshidratación osmótica al vacío sobre las características fisicoquímicas y nutricionales del perejil deshidratado, midiendo la actividad de agua, densidad, rehidratación, color, contenido de vitamina C y carotenos. Los resultados mostraron que el secado de perejil a una temperatura de 60 °C sin pretratamiento es el más adecuado, presentando un menor tiempo de proceso (68 min, una mayor reducción en la humedad (4,3% y un menor efecto en los contenidos de vitamina C (8,7 mg de vitamina C/100 g de muestra y carotenos (36,9 mg de carotenos/100 g de muestra. Los procesos de secado con osmodeshidratación como pretratamiento son más lentos, debido a la formación de una capa de jarabe en la superficie de las muestras, la cual dificulta la salida de la humedad del interior de las hojas. El contenido de vitamina C disminuye en todos los procesos, pero es mayor en aquellos con pretratamiento por la solubilidad de la vitamina en el agua. Los carotenos se reducen en una mayor proporción en los procesos que toman mayor tiempo en llegar a la humedad de equilibrio debido a su termosensibilidad.The influence of the drying temperature (50 and 60 °C and the different pretreatments (without pretreatment, osmotic dehydration and vacuum osmotic dehydration were evaluated on the physical, chemical and nutritional characteristics of dried parsley, such as water activity, density, rehydration, color, vitamin C content, and carotene content. The results showed that drying at 60 °C without pretreatment is the best process for drying parsley because the process time (68 min and the moisture content (4,3% are lower and the vitamin C (8,7 mg vitamin C/100 g sample and carotene contents (36,9 mg carotene/100 g sample are less affected. The drying processes with osmodehydration as pretreatment

Efecto del secado de los biosólidos de la planta de tratamiento de aguas residuales El Salitre (Bogotá sobre su contenido de nutrientes, metales pesados y patógenos

Directory of Open Access Journals (Sweden)

Giraldo Óscar

2006-12-01

Full Text Available

Se acondicionó el biosólido proveniente  de la planta de tratamiento de aguas residuales El Salitre, en Bogotá, para su uso agrícola o forestal, de tal manera que el producto obtenido se encontrara dentro de los límites máximos permisibles de contaminantes establecidos por la estadounidense Environmental Protection Agency (EPA y su contenido de nutrientes se afectara en la menor proporción posible. Se realizaron tratamientos térmicos a temperaturas de 50, 55, 60, 65 y 70 °C, y se determinó el contenido de coliformes totales, E. coli y Salmonella, el contenido de nutrientes totales (N, P, K y metales pesados disponibles (Cd, Cr, Cu, Mn, Ni, Pb, Zn, antes y después de cada uno de los tratamientos. Los tratamientos de secado entre 55-70 °C redujeron los coliformes totales y E. coli hasta niveles apropiados para que el biosólido pueda ser utilizado en aplicaciones forestales. Aunque los contenidos de nutrientes del producto se redujeron entre 75% y 95%, aún se considera apropiados para su utilización como fertilizante. Los metales Cu y Zn aumentaron sus contenidos disponibles después de los tratamientos, Cd y Cr no fueron detectados y los contenidos de  algunos metales pesados (Mn, Ni, Pb se redujeron con el proceso de secado. Sin embargo, para  todos  los metales los valores se encontraron por debajo de los límites establecidos por la EPA para la aplicación del biosólido en terrenos agrícolas. Se concluyó que el tratamiento de secado de biosólido puede considerarse como una opción válida para su acondicionamiento para uso forestal.

Diseño de un espesador por gravedad y eras de secado para los lodos producidos en la planta de tratamiento de agua potable Acueductos La Enea Ltda.

OpenAIRE

Holguín Isaza, Carlos Andrés

2003-01-01

En el presente trabajo se realiza una caracterización de las aguas de lavado de filtros y decantadores de la planta de tratamiento de agua potable “Acueductos la Enea Ltda.”, realizándole ensayos de caudal, sólidos sedimentables y sólidos suspendidos totales. Se diseña además un sistema de espesamiento por gravedad y secado en lechos de arena y grava para los lodos producidos durante el lavado de los decantadores y filtros, por medio de los datos obtenidos a nivel de laboratorio, a nivel pilo...

Estudio de la cinética fisicoquímica del mango (mangifera indica l. var. tommy atkins) tratado por métodos combinados de secado

OpenAIRE

MORENO, ANGÉLICA; LEÓN, DAVID; GIRALDO, GERMAN; RIOS, EUNICE

2010-01-01

El seguimiento cinético de los parámetros de peso, actividad de agua (aw) y ganancia de sólidos solubles (ºBrix) en cubos de mango (Mangifera indica L. Var. Tommy Atkins) fueron evaluados durante los procesos de deshidratación osmótica con o sin pulso de vacío (DO y DOPV) en combinación con el secado por aire caliente (SAC) o a vacío (VAC). Se observó que la DOPV y el SAC son los métodos más efectivos ya que requieren menor tiempo de proceso para alcanzar sus niveles adecuados de humedad para...

Argentina: Background and U.S. Relations

Science.gov (United States)

2008-11-05

Comercio Internacional, Y Culto, Comunicado de la Cancillería Argentina, September 11, 2008. 43 A. Rebossio, "Fernández Acusa al FBI de Desestablizar...Argentina," El País (Madrid), September 13, 2008. 44 “Argentina Slams Witness in Cash Suitcase Scandal,” Associated Press Newswires, November 4, 2008

Climatology of hail in Argentina

Science.gov (United States)

Mezher, Romina N.; Doyle, Moira; Barros, Vicente

2012-10-01

The annual cycle, annual and seasonal frequency and geographical distribution of hail in Argentina during the 1960-2008 period are examined. Eight regions covering the whole territory were defined based on the correlation of the mean annual hail frequency between all weather stations. Regions lying between 30° and 40°S as well as those dominated by mountains present the highest hail frequencies in Argentina. The eastern and coastal areas of the country experience hail events mainly during springtime but they may start in late winter and continue through the beginning of summer. Events in western and central Argentina also predominate in spring but the maximum frequencies are observed during summer months. Trends in the annual number of hail events calculated for each region indicate that events in northwestern and northeastern Argentina have been increasing as well as in southern Patagonia. On the other hand, in central Argentina, southern Buenos Aires-La Pampa, northern Buenos Aires-Litoral and northern Patagonia trends are negative and statistically significant in the first two regions, basically by the decrease of events during spring and summer.

Operating practical experience at Argentina; Experiencia practica operativa en la Argentina

Energy Technology Data Exchange (ETDEWEB)

Quihillalt, Oscar [Nucleoelectria Argentina S.A., Buenos Aires (Argentina)

1998-12-31

Operating experiences of Atucha-1 and Embalse Nuclear Power Plants were discussed in this work. The technical and economic aspects, such as reliability, availability, personnel training, operating costs, prices and market, which exercise influence upon Argentina nuclear energy policy, mainly on the power electric generation by nuclear power plants were considered. Finally the current status of the nucleoelectric sector in Argentina and forecasting were analysed. 3 figs., 5 tabs.

Long-term and transient time variation of cosmic ray fluxes detected in Argentina by CARPET cosmic ray detector

Science.gov (United States)

De Mendonça, R. R. S.; Raulin, J.-P.; Bertoni, F. C. P.; Echer, E.; Makhmutov, V. S.; Fernandez, G.

2011-07-01

We present results obtained at El Leoncito (CASLEO, San Juan, Argentina) with the CARPET charged particles detector installed in April 2006. The observed modulation of the cosmic ray flux is discussed as a function of its time variability and it is related to longer solar activity variations and to shorter variations during solar and geomagnetic transient activity. Short period (few minutes, few hours) cosmic ray modulation events are observed during rain time (precipitation) and significant variations of the atmospheric electric field. Complementary observations of the atmospheric electric field indicate that its time variations play an important role in the detected cosmic ray event.

Medical revolution in Argentina.

Science.gov (United States)

Ballarin, V L; Isoardi, R A

2010-01-01

The paper discusses the major Argentineans contributors, medical physicists and scientists, in medical imaging and the development of medical imaging in Argentina. The following are presented: history of medical imaging in Argentina: the pioneers; medical imaging and medical revolution; nuclear medicine imaging; ultrasound imaging; and mathematics, physics, and electronics in medical image research: a multidisciplinary endeavor.

Argentina's nuclear red herring

International Nuclear Information System (INIS)

Perera, J.

1983-01-01

The article deals with Argentina's nuclear power programme over the last 30 years, including the country's efforts to be nuclear independent of the United States, as well as its aspirations to be a nuclear supplier to latin America. The latter policy on economic, rather than military grounds for nuclear weapons, has led to Argentina's decision to build a uranian enrichment plant. (U.K.)

History of radiobiology in Argentina

International Nuclear Information System (INIS)

Mayo, Jose

2004-01-01

Radiobiology is a multidisciplinary science dealing with ionising radiation effects on biological material. The history of Radiobiology begins in Germany and France around 1886. Radiobiology was introduced in Argentina in 1926 at the Institute of Oncology Angel H. Roffo as a biomedical research branch. Later on in 1957 was incorporated at the National Atomic Energy Commission (CNEA) of Argentina as a result of the newly started nuclear activities in Argentina. Prior that time no Radiobiology research existed in Argentina. To fill this need a Project to create new laboratories was elaborated by the CNEA. New laboratories in Radiobiodosimetry, Cellular Radiobiology, Radiopathology, Radiomicrobiology, Genetics and Somatic Effects were created. Human resources on different areas of Radiobiology were formed with the assistance of IAEA. With professional and technical personnel specialized in Radiobiology at the beginning of the 1970 decade, the transference of fundamental and applied research to others laboratories started. (author)

Crisis de la prensa Argentina

Directory of Open Access Journals (Sweden)

Federico Rey Lennon

2015-01-01

Full Text Available La magnitud de la crisis económica Argentina es enorme y difícil saber hasta cuando se extenderá, agravada por una situación política frágil. La actual recesión ha hecho caer la inversión publicitaria a los niveles más bajos de los últimos años. De 1997 al 2001 la circulación de la prensa Argentina cayó en el 36 por ciento. El riesgo en Argentina es la eventual extranjerización de casi todos los medios de comunicación.

Coccocypselum pulchellum (Rubiaceae, nuevo registro para Argentina

Directory of Open Access Journals (Sweden)

Elsa L. Cabral

2007-01-01

Full Text Available Se cita Coccocypselum pulchellum por primera vez para Argentina, en Predio Guaraní, Misiones. Esta es la tercera especie de Coccocypselum registrada para la flora de Argentina junto con C. hasslerianum y C. lanceolatum. Se incluyen descripciones, ilustraciones y una clave para reconocer las tres especies argentinas de Coccocypselum.

Efecto del secado de las muestras sobre la extracción selectiva de Fe y A1 activos en Andisoles del norte de la cordillera central Colombiana.

Directory of Open Access Journals (Sweden)

Jaramillo J. Daniel F.

2000-12-01

Full Text Available Muestras secadas al aire y sin secar de cinco perfiles de Andisoles del norte de la cordillera central colombiana fueron sometidas a extracción con oxalato ácido de amonio y con pirofosfato de sodio. En los extractos de oxalato se determinaron A1, Fe y Si y en los de pirofosfato A1 y Fe. El secado de las muestras redujo significativamente al 95% la cantidad de A1 y de Fe extraída con oxalato ácido, dificultando la clasificación de los suelos en el orden Andisol utilizando los parámetros de la taxonomía del USDA.

Transferencia de Tecnologías a una Cooperativa en Argentina. Un Estudio de Caso

Directory of Open Access Journals (Sweden)

Maximiliano Facundo Vila Seoane

2013-04-01

Full Text Available This paper describes a pilot technology transfer process carried out in the province of Salta, northwestern Argentina, whose goal was to disseminate knowledge to produce solar cookers. The particularity of this experience is that the source of knowledge transfer has been made from a research and development center to a cooperative public work in the province. The paper describes in detail all the stages of the process, methods that have been used, and suggests a set of points to consider in future similar experiences.

Análise sensorial, estudo da coloração característica e perfil de aminoácidos da pêra passa de Viseu

OpenAIRE

Cunha, Pedro; Rocha, Sílvia; Correia, Ana Cristina; Guiné, Raquel; Coimbra, Manuel

2010-01-01

A pêra de S. Bartolomeu (Pyrus communis L.) é um produto tradicional secado ao ar livre, de coloração castanho-avermelhada e propriedades elásticas únicas. Para substituir a secagem tradicional sem que as propriedades organolépticas sejam alteradas foram desenvolvidas duas estufas solares e um túnel de ar quente. Os resultados da análise sensorial mostraram que as estufas solares possuem a capacidade de substituir a...

Telescopio Solar en Hα (HASTA)

Science.gov (United States)

Fernández Borda, R.; Francile, C.; Bagala, G.; Bauer, O.; Haerendel, G.; Rieger, E.; Rovira, M.

El Telescopio Solar en Hα (Hα Solar Telescope for Argentina (-HASTA-) fue recientemente instalado en la Estación Astronómica de Altura Carlos Ulrrico Cesco (OAFA) en El Leoncito. Este instrumento estudiará la evolución de las fulguraciones solares desde tierra con alta resolución temporal y espacial. HASTA es un telescopio refractor de 110 mm con una distancia focal de 165 cm, un filtro Lyot sintonizable (±1Å) con un ancho de banda de 0.3 Å y una cámara CCD de alta resolución (1280×1024 pixels). Todo el conjunto es controlado en forma remota por una PC, la cual además adquiere datos del Sistema de Posicionamiento Global (GPS) y de la estación meteorológica. Diseñado para detectar fulguraciones, el instrumento trabaja en dos modos (patrullaje y fulguración) con una resolución espacial de 1.5 arcseg por pixel y una resolución temporal de 2 seg. HASTA comenzó a operar en Mayo de 1998 y, junto con otros tres instrumentos solares, que se están instalando o se instalaron, harán de El Leoncito un polo de observación solar importante en el Hemisferio Sur.

Comparison of Regression and Neural Networks Models to Estimate Solar Radiation Comparación de Regresión y Modelos de Redes Neuronales para Estimar la Radiación Solar

Directory of Open Access Journals (Sweden)

Mónica Bocco

2010-09-01

Full Text Available The incident solar radiation on soil is an important variable used in agricultural applications; it is also relevant in hydrology, meteorology and soil physics, among others. To estimate this variable, empirical models have been developed using several parameters and, recently, prognostic and prediction models based on artificial intelligence techniques such as neural networks. The aim of this work was to develop linear models and neural networks, multilayer perceptron, to estimate daily global solar radiation and compare their efficiency in its application to a region of the Province of Salta, Argentina. Relative sunshine duration, maximum and minimum temperature, rainfall, binary rainfall and extraterrestrial solar radiation data for the period 1996-2002, were used. All data were supplied by Experimental Station Salta, Instituto Nacional de Tecnología Agropecuaria (INTA, Argentina. For both, neural networks models and linear regressions, three alternative combinations of meteorological parameters were considered. Good results with both prediction methods were obtained, with root mean square error (RMSE values between 1.99 and 1.66 MJ m-2 d-1 for linear regressions and neural networks, and coefficients of correlation (r² between 0.88 and 0.92, respectively. Even though neural networks and linear regression models can be used to predict the daily global solar radiation appropriately, neural networks produced better estimates.La radiación solar incidente en el suelo es una variable importante usada en aplicaciones agronómicas, además es relevante en hidrología, meteorología y física del suelo, entre otros. Para estimarla se han desarrollado modelos empíricos que utilizan distintos parámetros meteorológicos y, recientemente, modelos de pronóstico y predicción basados en técnicas de inteligencia artificial tales como redes neuronales. El objetivo de este trabajo fue desarrollar modelos lineales y de redes neuronales, del tipo perceptr

Nuclear Activities in Argentina, 2010

International Nuclear Information System (INIS)

Ferreri, J.C.; Ferreri, J.C.; Clausse, A.; Clausse, A.; Clausse, A.; Ordonez, J.P.; Mazzantini, O.A.

2011-01-01

Nuclear activities in Argentina are restarted. After almost two decades of near stagnation, the governments political decision of August 2006 regarding electrical energy production, considered the nuclear option as a valid one to solve the problems of the growing demand of electrical energy. This decision triggered again the activities related to the finalization of the third nuclear power reactor (Atucha-II), now actively progressing, the construction of a prototype of the CAREM integral advanced reactor, the life extension of the Embalse CANDU nuclear power plant (NPP) and the studies for the emplacement of a fourth NPP in an appropriate site. In all those years of near stagnation, there were notable exceptions related to the design and construction of experimental and radioisotope production reactors, led by INVAP, a state-owned industry, which exported its production. The accompanying industries of nuclear fuel elements production also remained active, given the demand of the two active NPPs. Meanwhile, the National Atomic Energy Commission of Argentina continued the efforts on research and development that were at the base of the technological achievements of the nuclear activities in Argentina. Nuclear safety studies associated with Atucha II and Embalse NPPs and radiological safety were also a substantive part of the continued efforts by Nucleo-Electrica de Argentina SA and the Nuclear Regulatory Authority of Argentina

Argentina [Country report

International Nuclear Information System (INIS)

Ferreyra, R.

2005-01-01

The airborne geophysical surveys developed in Argentina are described. They have got more than 500.000 km 2 acquiring data for U, Th, K and total background activity. Other types of published data are also mentioned (satellite imagery, seismic hazard, climate, soil distributions, etc.). The availability of maps with the abundances of elements analyzed at the country and also at laboratories from Canada is described, as well as data of analysis of several elements at two study areas proposed at the outset of the project. The availability of process rate data and epidemiological data is also explained. Argentina intended fully to participate in the CRP at the outset of the project. Due, however, to external resource constraints imposed on the participating organization (Comision Nacional de Energia Atomica, CNEA), the level of participation had to be significantly reduced. Nonetheless, in the first period of the CRP, Argentina undertook to collate existing geological and geochemical information within the country, and began to define potential areas for site specific natural systems safety indicator studies. (author)

Observaciones solares en H alfa : Innovaciones técnicas y aplicaciones científicas

OpenAIRE

Fernández Borda, Roberto A.

2001-01-01

El objetivo central de esta Tesis de Doctorado es la puesta a punto del HASTA (Ha Solar Telescope for Argentina) para su aplicación a las observaciones solares. El HASTAes un telescopio solar provisto de un filtro Lyot sintonizable, optimizado para trabajar en 6562.7 ± 1 Å con un ancho de banda de 0.3 Å. Las imágenes son adquiridas por una cámara CCD (Charge Coupled Device) de 1280 x 1024 pixeles. Cada pier del instrumento subtiende 2.07 arcseg obteniéndose una resolución espacial de ~ 4 arcs...

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

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Gonzalo J Marquez

2010-06-01

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

Mida õpetab Argentina finantskriis? / Karsten Staehr

Index Scriptorium Estoniae

Staehr, Karsten, 1962-

2002-01-01

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

Potential renewable energy resources of the Lerma Valley, Salta, Argentina for its strategic territorial planning

Energy Technology Data Exchange (ETDEWEB)

Belmonte, S.; Viramonte, J.G. [Instituto GEONORTE, Facultad de Ciencias Naturales, Universidad Nacional de Salta and CONICET, Avda. Bolivia 5150, Salta CP 4400 (Argentina); Nunez, V. [Instituto de Recursos Naturales y Ecodesarrollo (IRNED), Facultad de Ciencias Naturales, Universidad Nacional de Salta, Avda. Bolivia 5150, Campo Castanares, Salta CP 4400 (Argentina); Franco, J. [Instituto Nacional de Energias No Convencionales (INENCO), Facultad de Ciencias Exactas, Universidad Nacional de Salta, CONICET, Avda. Bolivia 5150, Salta CP 4400 (Argentina)

2009-08-15

Renewable energy sources are considered as strategic opportunities to improve the population's quality of life, to promote the development of more efficient and equitable economic systems, and to favor environmental sustainability in the territorial planning of Lerma Valley (Salta, Argentina). The mapping in raster format (each pixel having a reference value) of the potential renewable energy sources (solar, wind, biomass, hydraulic, mixed) is essential to define ideal locations for different types of renewable applications, and to plan suitable strategies for its implementation. It is necessary considering environmental diversity and site conditions (topographic, natural resource, infrastructure and service availability, social and economical) of the intervention area. Different methodologies are used for mapping of potential energy resources. Solar radiation is spatialized through the application of statistical regressions between altitude, latitude, precise incident solar radiation records, and radiation data estimated with the Geosol V.2.0. trademark software. The Argentina Map program is used for the wind potential resource modeling. It requires as inputs: a Digital Elevation Model, a land use and cover map (to determine roughness), and measured and/or estimated wind speed and frequency data. The hydroelectric potential for microturbine applications is calculated from the topographic drop and the annual mean flow in cumulative models, through the application of the Idrisi Kilimanjaro trademark 's runoff tool; while the power densities are compared at the watershed. Biomass potential (at this exploratory stage), is interpreted from the available biomass type (land use and cover map), its energy application availability, and some quantitative indicators associated with the biomass types identified as priority. In conclusion, the renewable energy potential in Lerma Valley is very high and diverse, and its close connection with social

Development of tool for optimization in the measurement of solar radiation; Desarrollo de herramientas para la optimizacion en la medicion de la radiacion solar

Energy Technology Data Exchange (ETDEWEB)

Adaro, J.; Quiroga, D.; Fasulo, A.; Lema, A.

2004-07-01

One of the most important requirements to make a project of rational use of solar energy is the precise knowledge of the temporal-spatial distribution of the solar resource on the terrestrial surface. For that reason, the Solar Energy Group at the National University of Rio Cuarto in Argentina, is measuring and recording data of global and direct solar radiation. Many possibilities of different kinds of errors there exist in this process, but the most significant problem is the lack of data. Then, it would be necessary to have a methodology that indicates what to do in this situation, and for that reason, this work performs an study about the data processing of the obtained measurements to infer values to be incorporated to the series in situations where the data are lost. To incorporate lost data, the Time Series Analysis based in spatial state models were used. (Author)

Communications received from Argentina and Brazil

International Nuclear Information System (INIS)

1989-01-01

The document reproduces the Joint Statement on Nuclear Policy signed by the President of Argentina and the President of Brazil on 29 November 1988 at Ezeiza, Argentina, concerning the decision of the two countries to undertake a joint fast breeder reactor project

Argentina

International Nuclear Information System (INIS)

2001-04-01

This economical study summarizes the energy situation of Argentina: energy institutions and policy, energy companies (oil, electricity, gas, coal), energy supplies (resources, power production, petroleum, natural gas), prices and tariffs, consumption, economical stakes and perspectives (investments, agreements, projects). Energy data for the 1971-1999 period are summarized in graphs and tables. (J.S.)

Argentina: a mature urbanization pattern.

Science.gov (United States)

Rofman, A B

1985-02-01

"This article describes the historical development of Argentina's cities, pointing out the traditional dominance of the 'centre-litoral' region and...[of] Buenos Aires. Recent trends such as the population increase in the southern region are described and demographic trends are related to economic developments. The article concludes by examining Argentina's contemporary urban patterns, including the current low rate of urbanization." excerpt

Argentina's radioactive waste disposal policy

International Nuclear Information System (INIS)

Palacios, E.

1986-01-01

The Argentina policy for radioactive waste disposal from nuclear facilities is presented. The radioactive wastes are treated and disposed in confinement systems which ensure the isolation of the radionucles for an appropriate period. The safety criteria adopted by Argentina Authorities in case of the release of radioactive materials under normal conditions and in case of accidents are analysed. (M.C.K.) [pt

LDC nuclear power: Argentina

International Nuclear Information System (INIS)

Tweedale, D.L.

1982-01-01

Argentina's 31-year-old nuclear research and power program makes it a Third World leader and the preeminent Latin American country. Easily accessible uranium fuels the heavy water reactor, Atucha I, which provides 10% of the country's electric power. Atucha II and III are under construction. Several domestic and international factors combined to make Argentina's program succeed, but achieving fuel-cycle independence and the capacity to divert fissionable material to military uses is a cause for some concern. 60 references

Periodic and quiescent solar activity effects in the low ionosphere, using SAVNET data

Science.gov (United States)

Bertoni, F. C. P.; Raulin, J.-P.; Gavilan, H. R.; Kaufmann, P.; Raymundo, T. E.

2010-10-01

Important results have been acquired using the measurements of VLF amplitude and phase signals from the South America VLF Network (SAVNET) stations. This network is an international project coordinated by CRAAM, Brazil in cooperation with Peru and Argentina. It started operating in April 2006, and now counts on eight stations (Atibaia, Palmas, Santa Maria and Estaça~o Antártica Comandante Ferraz in Brazil; Piura, Punta-Lobos and Ica, in Peru; CASLEO, in Argentina). Researches, through the last decades, have demonstrated the versatility of the VLF technique for many scientific and technological purposes. In this work, we summarize some recent results using SAVNET data base. We have obtained daily maximum diurnal amplitude time series that exhibited behavior patterns in different time scales: 1) 1ong term variations indicating the solar activity level control of the low ionosphere; 2) characteristic periods of alternated slow and fast variations, the former being related to solar illumination conditions, and the latter that have been associated with the winter anomaly at high latitudes; 3) 27-days period related to the solar rotation and consequently associated to the solar Lyman-α radiation flux variations, reinforcing earlier theories about the importance of this spectral line for the D-region formation. Finally, we conclude presenting preliminary results of simulation using LWPC, which showed very good agreement at times of observed modal amplitude minima for a given VLF propagation path.

Commercial dissemination approaches for solar home systems

Energy Technology Data Exchange (ETDEWEB)

Terrado, E.

1997-12-01

The author discusses the issue of providing solar home systems to primarily rural areas from the perspective of how to commercialize the process. He considers two different approaches, one an open market approach and the other an exclusive market approach. He describes examples of the exclusive market approach which are in process in Argentina and Brazil. Coming from a banking background, the business aspects are discussed in detail. He points out the strengths and weaknesses of both approaches toward developing such systems.

Intermittent Coffee Drying in Deep Bed with Pulsed Airflow Secado de Café en Lecho Fijo con Intermitencia Térmica y Flujo de Aire Pulsado

Directory of Open Access Journals (Sweden)

Héctor José Ciro Velásquez

2011-12-01

Full Text Available A dryer in deep bed without airflow reversal was adapted to work simultaneously with thermal intermittence and pulsed airflow in the drying of parchment coffee bean. The dryer was operated by cycles of thermal intermittence for a heating temperature of 55 °C and cooling of 40 and 25 °C. The results showed that the increase of temperature in the cycle of cooling tends to increase the water removal and that the increase of the number of air pulses without reversal of the direction of air flow causes an excessive moisture gradient within the batch. Moreover, the specific energy requirement of the dryer was from 15 to 25 MJ/kg, showing the best thermal performance for the condition in which the dryer was operate without pulsed airflow.Un secador de lecho fijo fue adaptado para trabajar de forma simultánea con intermitencia térmica y flujo de aire pulsado sin inversión de flujo de aire, en el secado de granos de café. El secador fue operado con ciclos de intermitencia térmica para una temperatura de calentamiento de 55 °C y enfriamiento de 40 y 25 °C. Los resultados mostraron que el aumento de temperatura en el ciclo de enfriamiento, tiende a incrementar la remoción de agua y que el aumento del número de pulsos de aire sin inversión del flujo de dirección del aire, ocasiona un secado deficiente debido al excesivo gradiente de humedad ocasionado en la capa de producto. Adicionalmente, se encontró que el consumo de energía específica del secador varió entre 15 y 25 MJ/kg de agua evaporada, siendo el mejor rendimiento termo energético para la condición en la cual el secador fue operado sin flujo de aire pulsado.

Determinación de la condición fisiológica de la semilla de Capsicum spp y efecto del método de secado para su almacenamiento.

Directory of Open Access Journals (Sweden)

Cardozo C. I.

2004-04-01

Full Text Available Semillas del género Capsicum se caracterizaron fisiológicamente. Basados en datos de viabilidad y germinación se estimó la tolerancia a la desecación y conservación por lo cual se estableció la condición ortodoxa de las semillas. Sin embargo, se destaca la importancia de la variable vigor, que permitió establecer diferencias entre las especies respecto de su longevidad y deducir que los contenidos de humedad de 10% y 7.5% y temperatura de 10°C admiten mayor capacidad de conservación. Los cuatro métodos de secado (secado artificial, sílica gel, sol y sombra y los dos sistemas de ambiente controlado no presentaron diferencias significativas en viabilidad. Se detectaron niveles moderados de latencia en las semillas que pudieron interferir en la interpretación de los resultados. Palabras claves: C. annuum, C. frutescens, C. baccatum, viabilidad, germinación. ABSTRACT Determination of physiological status of Capsicum spp seed and efect of the dry method for storage. Capsicum spp seeds was physiologycal characterizated. Based on data of viability and germination to estimate the tolerance to drying and conservation, the orthodox condition of the seeds could be established. Nevertheless, the importance of the variable vigor stands out, that allowed to establish differences between the species with respect to its longevity, It was settled down that 10 and 7.5% of humidity contents and temperature of 10°C allow greater capacity of conservation. The four methods of seed drying and the capacity of conservation under two different controlled environment systems were not significant differences. Moderate levels of the seed dormancy could be interfered the interpretation of the results. Keywords: C. annuum, C. frutescens, C. baccalum, viability, germination

Operating practical experience at Argentina

International Nuclear Information System (INIS)

Quihillalt, Oscar

1997-01-01

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

Predicting the drying shrinkage behavior of high strength portland cement mortar under the combined influence of fine aggregate and steel micro fiber; Predicción del comportamiento de retracción por secado de morteros de cemento Pórtland de alta resistencia bajo la influencia combinada de árido fino y micro fibra de acero.

Energy Technology Data Exchange (ETDEWEB)

Li, Zhengqi

2017-07-01

The workability, 28-day compressive strength and free drying shrinkage of a very high strength (121-142 MPa) steel micro fiber reinforced portland cement mortar were studied under a combined influence of fine aggregate content and fiber content. The test results showed that an increase in the fine aggregate content resulted in decreases in the workability, 28-day compressive strength and drying shrinkage of mortar at a fixed fiber content. An increase in the fiber content resulted in decreases in the workability and drying shrinkage of mortar, but an increase in the 28-day compressive strength of mortar at a fixed fine aggregate content. The modified Gardner model most accurately predicted the drying shrinkage development of the high strength mortars, followed by the Ross model and the ACI 209R-92 model. The Gardner model gave the least accurate prediction for it was developed based on a database of normal strength concrete. [Spanish] Se ha estudiado la trabajabilidad, resistencia a la compresión (28 días) y la retracción al secado de morteros de cemento Pórtland de muy alta resistencia (121-142 MPa) reforzados con micro fibra de acero, con la influencia combinada de contenido de árido fino y de micro fibra de acero. El aumento en el contenido de árido fino resultó en la disminución de la trabajabilidad, resistencia a la compresión y la retracción por secado de los morteros con un contenido de fibra específico. El aumento en el contenido de fibra dio lugar a la disminución de la trabajabilidad y la retracción por secado, y a un aumento en la resistencia a la compresión a 28 días en morteros con un contenido específico de á rido fino. El modelo modificado de Gardner predijo con más precisión la retracción por secado de mortero de alta resistencia, seguido por el modelo de Ross y el modelo ACI 209R-92. El modelo de Gardner dio la predicción menos exacta debido al hecho de que se desarrolló sobre bases de datos de hormigones de resistencia normal.

Renewable energy and wild life conservation: design and construction of a solar incubator

Energy Technology Data Exchange (ETDEWEB)

Evans, John Martin; Schiller, Silvia de; Garreta, Fabian [Universidad de Buenos Aires, Centro de Investigacion Habitat y Energia, Buenos Aires (Argentina)

1998-09-01

This paper presents the design, construction and results of a solar powered incubator and pools for rearing yacare, a specie of the crocodile family, found in northern Argentina. The design was developed by the Research Centre Habitat and Energy, Faculty of Architecture, Design and Urbanism, Buenos Aires University in the framework of a Cooperation Agreement with the Argentine Wild Life Foundation. The installation, located in a Wild Life Refuge in a remote sub-tropical area of the Chaco Province in the north-east region of Argentina, consists of an incubation chamber for hatching the yacare with strict temperature conditions, pools for rearing the young during a year, heated by solar energy, an auxiliary wood-fired water heater and PV system to power the pumps control system and other minimal requirements such as lighting. The concepts, system development and integration, construction process and measured performance are presented together with the first results of this project which integrates low impact renewable energy systems to support the conservation of an endangered specie. (Author)

Boll weevil invasion process in Argentina

Science.gov (United States)

The boll weevil, Anthonomus grandis grandis Boheman, is the most destructive cotton pest in the Western Hemisphere. In 1993, the pest was reported in Argentina, and in 1994 boll weevils were captured in cotton fields in the Formosa Province on the border between Argentina and Paraguay. The pest ha...

Efecto del secado en ambiente de servicio en la evolución de las propiedades mecánicas de hormigones livianos estructurales Effect of drying under service environment on the mechanical properties of structural lightweight concretes

Directory of Open Access Journals (Sweden)

Carlos Videla

2007-08-01

Full Text Available En este trabajo se evalúa el efecto de la humedad relativa del ambiente de servicio en las resistencias a compresión y a tracción y en el módulo de elasticidad de hormigones livianos estructurales. Además se establecen relaciones que permiten estimar estas propiedades en función de la humedad relativa del ambiente y del tiempo de secado. Los hormigones se fabricaron con dos tipos de áridos gruesos livianos, piedra pómez y pellets de ceniza volante, y con un árido fino de densidad normal. Los hormigones se sometieron a dos condiciones ambientales de servicio: una a 90% de humedad relativa y otra a 90% de humedad relativa durante los 7 primeros días y luego a 50% de humedad relativa hasta la edad de ensayo. Los ensayos se efectuaron a 7, 28, 60 y 90 días de edad. Se observó un deterioro importante de las propiedades medidas por efecto de las condiciones de secado; a 83 días de secado, en promedio las pérdidas de resistencia a tracción y compresión fueron de 20% y 15%, respectivamente, y de módulo de elasticidad de 40% respecto a hormigones a 90% de humedad relativa. Se concluye que hay dos variables principales que regulan el efecto del secado en el hormigón liviano. La primera de éstas corresponde a razón agua-cemento y que define entre otras cosas la permeabilidad de la fase resistente. La otra variable corresponde al contenido relativo de árido liviano en la mezclaIn this paper the effect of the ambient relative humidity at service on the compressive and splitting strengths and in the modulus of elasticity of structural lightweight concretes is evaluated. Also, relationships are proposed allowing estimating these properties as a function of the ambient relative humidity and drying time. The concretes were made with two types of coarse lightweight aggregates, pumice and fly ash pellets, and with normal density fine aggregate. The concretes were subjected to two different environmental service conditions: 90% relative

Argentina

International Nuclear Information System (INIS)

Masters, R.

1997-01-01

This article provides information on the energy resources, government, electricity supply, nuclear industry and fuel cycle of Argentina. About 12% of electric power produced is generated from nuclear power plants. The operating capacity, history and partial privatisation of the nuclear industry are covered, and fuel cycle facilities described. These include uranium mining and processing, enrichment, fuel fabrication and heavy water production. (UK)

Diccionario del español de Argentina

OpenAIRE

Haensch, Günther

2000-01-01

Diccionario del español de Argentina : español de Argentina - español de España / Günther Haensch ; Reinhold Werner. Madrid : Gredos, 2000. - LI, 729 S. - (Diccionarios contrastivos del español de América)

Argentina

International Nuclear Information System (INIS)

Anon.

1992-01-01

This paper reports that like so many other countries, Argentina is in the throes of privatization and restructuring of its economic programs. This has had a direct effect on the LPG industry. Argentina is a country with many natural resources. However, natural gas and crude, while present, are not in abundance. Imports of these and their associated products are needed to satisfy the growing need of the population from time to time. This is especially true with LPGs. Production of the fuel averages about 1 million tons, not enough to satisfy internal needs in the winter but enough to permit some exports in the summer to nearby Brazil. The Country's Congress approved a plan to sell-off or lease parts of the natural gas distribution network and other businesses of Gas del Estado. Subsequent new legislation has called for ten new natural gas distribution zones. Included in the sell-off is the company's propane distribution division. What is left of Gas del Estado and YPF will become a corporation in the true sense of the word. Stocks in YPF are to be sold to the public

Valor nutritivo del heno de maní forrajero deshidratado en un secador solar

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Adrián Filomena Sancho

2007-01-01

Full Text Available Se evaluó la henificación, en un secador solar, de Arachis sp. cosechado a 180 días de rebrote. Los tratamientos fueron: camas de material de 15 y 30 cm de espesor; volteos del material (sin volteos, 1 volteo por día y 1 volteo cada 2 días; y 6 y 9 días de secado. La temperatura promedio dentro del secador fue 13,4±7,7ºC mayor que la externa y la humedad relativa 17,4±12,75% menor que la externa. La MS (72,52±10,19% varió por los efectos principales y la interacción espesor de la cama por volteo (p<0,0001. El contenido de proteína (15,67±0,68% MS, no fue alterado por los tratamientos ni por sus interacciones. Para la FDN y la FDA, las 3 variables fueron significativas con una concentración promedio de 52,23±3,99% MS y 42,41±2,95% MS, respectivamente. El N-FDA fue afectado por las variables en estudio; en promedio se obtuvo 0,175±0,03% de N-FDA, lo que equivale al 6,97±0,99% de N/N-total. Así, los secadores solares son una alternativa de bajo costo para la producción de un heno que supera la calidad del producido a base de gramíneas.

The health crisis in Argentina.

Science.gov (United States)

Escudero, José Carlos

2003-01-01

The health crisis in Argentina is part of the larger crisis that has resulted from a collapse in the country's economic and political systems. After a brief review of the country's history over the last century, from international success story to economic failure, the author explains the health crisis in particular and the social crisis in general in terms of failed neoliberal policies imposed on Argentina by the United States and International Monetary Fund through the mediation of the country's political class.

Novedades en la Distribución de las Cyatheaceae (Pteridophyta en Argentina Novelties in the distribution of Cyatheaceae (Pteridophyta of Argentina

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Gonzalo J. Marquez

2006-12-01

Full Text Available Cyathea atrovirens (Langsd. & Fisch. Domin se cita por primera vez para la provincia de Corrientes (Argentina. De esta manera se extiende su área de distribución hacia el sudoeste. Además se confirma la presencia de Alsophila odonelliana (Alston M. Lehnert en la provincia de Jujuy (Argentina. En este estudio los caracteres de las esporas resultaron diagnósticos para la determinación genérica de los taxa.Cyathea atrovirens (Langsd. & Fisch. Domin is reported for the first time for Corrientes province (Argentina. Thus, its area of distribution is extended southwest. The presence of Alsophila odonelliana (Alston M. Lehnert is confirmed for Jujuy province (Argentina. In this study the spore features were diagnostic in order to determine these taxa.

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

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Lisandro Héctor Luis-Negrete

2011-03-01

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

de la sociedad argentina

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Diego Galeano

2007-01-01

Full Text Available Este artículo trata sobre un período de la historia argentina en el cual la "mirada médica", a través de un grupo de prestigiosos intelectuales, se convirtió en una clave de interpretación de la sociedad argentina. El análisis gira en torno a la obra de uno de los médicos higienistas más influyentes, José María Ramos Mejía, deteniéndose especialmente en su libro más famoso: Las multitudes argentinas (1899. La hipótesis principal que recorre el texto es la siguiente: la medicalización de la sociedad, acentuada luego de las epidemias de cólera y fiebre amarilla de mediados del siglo XIX, ofreció a las elites públicas la posibilidad de construir dominios legítimos de intervención estatal. Intromisiones del Estado en la vida privada que, además de ser algo resistidas por la población, entraban en tensión con los principios teóricos del liberalismo que los propios miembros de la elite defendían.

Argentina

Energy Technology Data Exchange (ETDEWEB)

1999-09-01

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

Crisis cambiaria en Argentina

OpenAIRE

Féliz, Mariano

2009-01-01

El análisis de la articulación entre el proceso de valorización exitosa de capital y la tendencia a la desvalorización de las mercancías se aplica a una de las manifestaciones de la crisis argentina: la devaluación del peso. Se estudia la relación entre la determinación del tipo de cambio y la valorización del capital. Se discuten las tendencias concretas de la economía argentina en la década de 1990 y se muestra cómo la devaluación de 2001-2002 fue producto necesario del propio proceso de va...

Proceso artesanal de extracción, manejo y secado de las fibras naturales de banano (Musa paradisiaca en la Parroquia El Retiro de la Provincia de El Oro

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Linda Maldonado

2016-06-01

Full Text Available Ecuador es considerado un país bananero. En muchas de sus provincias existen grandes plantaciones de banano y que se aprovecha solo el fruto. Se desechan su pseudotallo y otras partes, que pocas veces se emplean como abono. El objetivo del  proyecto es darle un valor agregado a este  residuo, aprovechando toda la fibra natural que posee para utilizarla en la obtención de panelería y enchapes del tipo Fibra de densidad media, conocidos por su sigla en inglés MDF. El presente artículo tiene como propósito dar a conocer el proceso de extracción de las fibras de una forma absolutamente artesanal que se inicia a partir de la selección y corte del pseudotallo, su  desvainado y la separación  de cada uno de los tipos de fibras. Estas se clasifican en suaves, duras  y la denominada  malla. Una vez obtenidas las fibras, se procede a secarlas, se observan detenidamente y se tiene en cuenta las horas de exposición al sol, y las que permanecen a la sombra, prestando  especial atención  al color que adquieren  de acuerdo con la radiación solar, y el tiempo de cortado el pseudotallo. Se consideró aplicarle color a la fibra y se tiñó mediante un proceso de cocción, durante el cual se le agrega  tinte  vegetal  de color turquesa. Posteriormente concluimos que  para el objeto de nuestro estudio  no es necesario  que tengan colores  artificiales,  pero sí sería ideal, aumentar  la intensidad de su color natural después del secado, eso realzaría la textura de los paneles y enchapes que se desean obtener.

Control of nuclear materials and materials in Argentina

International Nuclear Information System (INIS)

Arbor G, A.; Fernandes M, S.

1988-01-01

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

Argentina to fully privatize state owned YPF

International Nuclear Information System (INIS)

Anon.

1992-01-01

Argentina's Congress has voted to fully privatize state petroleum company Yacimientos Petroliferos Fiscales (YPF), a move the government expects to net at least $8 billion. Despite some political opposition, the vote was 119-10 in favor, with one abstention and opposition party members refusing to participate in the vote. Argentina's President Carlos Menem had threatened to authorize YPF privatization by decree if there was no quorum for a vote. YPF is responsible for 40% of Argentina's oil production. The country h as been self-sufficient in crude since 1982. Current production is 563,472 b/d, and proved reserves of oil and gas are valued at $7 billion

Solar radiation in forested urban environments with dry climate. Case: Metropolitan Area of Mendoza, Argentina

Directory of Open Access Journals (Sweden)

Mariela Edith Arboit

2014-12-01

Full Text Available The aim of this work is to advance the understanding of the solar potential of urban residential environments which, by their morphology, and the impact of urban trees, present values of irradiance very different from full solar collection. Morphological variables of urban settings and urban trees, a very distinctive feature of the Mendoza Metropolitan Area (MMA, have a fundamental impact on the feasibility of implementing strategies for solar energy utilization in urban environments. The results achieved will contribute to modify and gradually update urban and building legislation to implement higher levels of energy efficiency and minimum environmental impacts.This work proposes to study the potential of solar collection in urban environments, analyzing eleven urban configurations selected according to their building and urban morphological characteristics.Methodologically, we have monitored the global solar irradiance on vertical plane on northern facades, completely sunny and partly sunny, affected by solid masking and arboreal masking. Results obtained so far indicate that solar masking is critical for vertical surfaces, with a reduction of the available solar energy between 2% and 66% in the winter season. However, these drawbacks caused by urban trees are compensated by benefits in the warm season: controlling the intensity of the urban heat island, absorption of pollutants, cooling and humidifying the air through evapotranspiration, reducing thermal loads of buildings, occupancy of public open spaces, and an invaluable contribution to the urban aesthetic.

Fluctuaciones interanuales a multidecádicas de la temperatura de verano en el centro-oeste de Argentina y procesos atmosféricos/oceánicos/astronómicos globales

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Eduardo Andres Agosta

2008-12-01

Full Text Available La temperatura estival (octubre-marzo en la región Centro-Oeste de Argentina (COA, 28°-36°S y 65°-70°O tiene un comportamiento espacial coherente y temporal en fase, en escalas interanuales a interdecádicas (Agosta y otros 2004. Se encuentra que la temperatura del aire presenta cuasi-oscilaciones significativas en las bandas de 11 años y 18 años aproximadamente. La primera se vincula al forzante solar, la segunda, a los efectos de la transición climática de 1976/77 (IPCC, 2001. Esta transición afectó transitoriamente la variabilidad de baja frecuencia de la temperatura como fenómeno de interferencia sobre el cuasi-ciclo solar de 11 años dominante.The summer (Oct-Mar temperature in Central-West Argentina (CWA, 28°-36°S y 65°-70°W shows a behaviour spatially coherent and temporally in phase at interannual to interdecadal scales. (Agosta et al. 2004. It is found the air temperature shows significant cuasi-oscillations in the spectral bands of roughly 11-yr. and 18- yr. The former is linked to the solar forcing, the latter to the effects of the climate transition of the summer 1976/77 (IPCC 2001. This transition transitorily affected the low-frequency variability of the temperature as an interference phenomenon upon the cuasi-11-yr.-solar cycle domain.

Argentina; Argentine

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-04-01

This economical study summarizes the energy situation of Argentina: energy institutions and policy, energy companies (oil, electricity, gas, coal), energy supplies (resources, power production, petroleum, natural gas), prices and tariffs, consumption, economical stakes and perspectives (investments, agreements, projects). Energy data for the 1971-1999 period are summarized in graphs and tables. (J.S.)

Measurements of atmospheric fallout in Argentina; Determinacion del fallout atmosferico en la Republica Argentina

Energy Technology Data Exchange (ETDEWEB)

Canoba, A C; Lopez, F O; Bruno, H A

1998-11-01

With the purpose of studying the radioactive fallout present in Argentina from atmospheric nuclear explosions tests that have been conducted recently, an environmental monitoring program, outside the influence of nuclear facilities of Argentina, was undertaken during 1996 and 1997. The levels of Cs-137 and Sr-90 were analysed in samples of air, deposited material (rainwater), milk, an average meal of a standard man and food. During this period, a total of 630 radiochemical analysis were performed on 325 samples of the different matrices described. The concentration levels of the radionuclides analysed in the different environmental matrices are presented and are compared with the values obtained in the environmental monitoring program done during the period 1960-1981. (author) 3 refs., 9 tabs. [Espanol] Con el proposito de estudiar la precipitacion radiactiva presente en la Republica Argentina, debido al ensayo de armas nucleares en la atmosfera realizadas en el pasado, se implemento el muestreo ambiental fuera de la zona de influencia de las instalaciones nucleares de la Argentina durante los anios 1996 y 1997. Se determinaron las concentraciones de cesio 137 y estroncio 90 en muestras de aire, deposito de material radiactivo (agua de lluvia), leche, dieta promedio de un individuo estandar y en alimentos varios. Se realizaron, durante el periodo mencionado, un total de 630 determinaciones radioquimicas sobre 325 muestras de las diferentes matrices mencionadas. Se presentan los niveles de concentracion de los radionucleidos analizados en las distintas matrices ambientales y se comparan los valores obtenidos en los monitoreos realizados durante el periodo 1960-1981. (autor)

The regulatory control of radioactive sources in Argentina

International Nuclear Information System (INIS)

Rojkind, Roberto Hector

1997-01-01

Argentina has been conducting nuclear activities for more than forty years, and as early as in 1956 established a Regulatory Authority. Procedures for compliance monitoring and enforcement have been in use in the regulatory control of radioactive sources, and regulatory standards and regulations had been set in Argentina, before the accident in Goiania. The conclusions drawn from that accident encouraged in Argentina the improvement of some regulatory procedures and helped to enhance the quality of the regulatory process. Therefore, the effectiveness of the control of spent radioactive sources has gradually increased, and enforcement actions to prevent radioactive sources ending up in the public domain improved. Some lessons learned in Argentina from the accident in Goiania and the main characteristics of an effective enforcement program helpful to prevent radiological accidents in industrial, medical, research and teaching uses of radioactive sources are presented. (author)

Comportamiento del arrastre de partículas en los gases durante el secado del mineral laterítico en tambores cilíndricos rotatorios

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Alexis García-Pérez

2000-03-01

Full Text Available Se utiliza un método estadístico-matemático de planificación de experimentos para la investigación del comportamiento del arrastre de partículas finas en los gases durante el secado del mineral laterítico en uno de los secadores en condiciones normales de operación. En un segundo se eliminaron los levantadores sectoriales en el último tercio del equipo, y se analizó en ambos la influencia de los gases residuales provenientes de la planta de hornos de reducción. Se obtiene la correlación y regresión entre las variables de entrada más importantes que intervienen en el proceso: velocidad de los gases en el interior del cilindro (V, contenido de humedad de los gases (W, y el arrastre de partículas (A como variable de salida. Los resultados obtenidos ofrecen alentadoras perspectivas sobre la generalización industrial de la propuesta.

New detailed holocene paleomagnetic records with anomalous geomagnetic field behavior in Argentina Nuevos registros paleomagnéticos holocenos detallados con comportamiento anómalo del campo magnético terrestre en Argentina

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Hugo G Nami

2012-12-01

Full Text Available Detailed palaeomagnetic studies were performed in several archaeological and geological sections dated with diverse relative and absolute methods. Data from 360 cores obtained in eight sites across eastern Argentina are reported. Characteristic remanence magnetization directions were determined by progressive alternating field demagnetization. Remanence directions showed anomalous geomagnetic field behavior far from the present magnetic field bearing oblique normal, oblique reverse and reverse polarities for the latest Pleistocene and Holocene, as well as evidence of possible field excursions recorded in several stratigraphic sections spanning ~11-0.5 kya. Computed virtual geomagnetic poles from those directions tend to be concentrated over North America, Europe, Eastern Asia, Africa and Australia. The hypothesis of the anomalous geomagnetic field directions is probably related with 14C fluctuations and solar activity.Se realizaron estudios paleomagnéticos detallados en varias secciones sedimentarias arqueológicas y geológicas fechadas con diversos métodos de datación absoluta y relativa. Se reportan resultados obtenidos de 360 muestras recogidas en ocho sitios localizados en el este de Argentina. La magnetización remanente característica fue determinada por desmagnetización progresiva utilizando campos alternos. Las direcciones remanentes mostraron conductas anómalas del campo geomagnético lejanas al campo actual mostrando polaridades oblicuas normales, oblicuas reversas y reversas con evidencia de posibles excursiones geomagnéticas registradas en varias secciones con un lapso temporal de ~11-0.5 kya. Los polos geomagnéticos virtuales computados a partir de las direcciones tienden a concentrarse sobre Norteamérica, Europa, Este de Asia, África y Australia. Se discute la hipótesis que la conducta anómala del campo magnético terrestre probablemente se relacione con las fluctuaciones de la producción de 14C y la actividad solar.

Primer registro de Vespula vulgaris (Hymenoptera: Vespidae en la Argentina First record of Vespula vulgaris (Hymenoptera: Vespidae in Argentina

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Maité Masciocchi

2010-12-01

Full Text Available Vespula vulgaris (Linnaeus es un véspido social nativo de la región Holártica. En este trabajo reportamos la primera detección de esta especie en Argentina. Obreras de esta avispa fueron capturadas cerca de la ciudad de San Carlos de Bariloche (Argentina en Febrero de 2010, mientras se tomaban muestras de otra avispa invasora, Vespula germanica (Fabricius o chaqueta amarilla, de morfología externa y hábitos similares a la anteriormente mencionada. Además, detallamos algunos caracteres de identificación y características biológicas.Vespula vulgaris (Linnaeus is a social vespid native to the Holarctic region. The first detection of this species in Argentina is here reported. Workers were captured close to San Carlos de Bariloche (Argentina during February 2010, while sampling for another successful invader, the German wasp or Yellowjacket, Vespula germanica (Fabricius. Both these wasp species are very similar morphologically and share a number of common habits. Also, some identification features and biological characters are here explained.

Unemployment Assistance and Transition to Employment in Argentina

NARCIS (Netherlands)

A. Iturriza (Ana); A.S. Bedi (Arjun Singh); R.A. Sparrow (Robert)

2007-01-01

textabstractIn 2001-02, Argentina experienced a wrenching economic crisis. Plan Jefes, implemented in May 2002, was Argentina's institutional response to the increases in unemployment and poverty triggered by the crisis. The program provided a social safety net and appears to have successfully

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

Directory of Open Access Journals (Sweden)

Fernando Althabe

2008-02-01

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

The bloodsucking biting midges of Argentina (Diptera: Ceratopogonidae

Directory of Open Access Journals (Sweden)

Gustavo R Spinelli

2005-04-01

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

Nuevas citas de Coleoptera acuáticos y Megaloptera para la provincia de Chubut (Argentina New records of aquatic Coleoptera and Megaloptera from Chubut province (Argentina

Directory of Open Access Journals (Sweden)

Miguel Archangelsky

2004-12-01

Full Text Available Se informa acerca de nuevos hallazgos de coleópteros acuáticos, de Dytiscidae, Gyrinidae, Hydrophilidae y Elmidae para la provincia de Chubut (Argentina. También se cita por primera vez a las Sialidae (Megaloptera, género Protosialis Weele, para la República Argentina.New records of aquatic Coleoptera, in the families Dytiscidae, Gyrinidae, Hydrophilidae and Elmidae, are reported for the Chubut province (Argentina. The Sialidae (Megaloptera, genus Protosialis Weele, is reported for the first time in Argentina.

Educating the Public about the 2017 Total Solar Eclipse

Science.gov (United States)

Pasachoff, Jay M.

2017-01-01

On behalf of the International Astronomical Union's Working Group on Solar Eclipses, I have long worked to bring knowledge about eclipses and how to observe the safely to the people of the various countries from which partial, annular, or total solar eclipses are visible. In 2017, we have first a chance to educate the people of South America on the occasion of the February 26 annular eclipse through southern Chile and Argentina that is partial throughout almost the entire continent (and an eclipse workshop will be held February 22-24 in Esquel, Argentina: http://sion.frm.utn.edu.ar/WDEAII) and then a chance to educate the 300 million people of the United States and others in adjacent countries as far south as northern South America about the glories of totality and how to observe partial phases. Our website, a compendium of links to information about maps, safe observing, science, and more is at http://eclipses.info. We link to important mapping sites at EclipseWise.com, GreatAmericanEclipse.com, and http://xjubier.free.fr/en/site_pages/solar_eclipses/xSE_GoogleMap3.php?Ecl=+20170821&Acc=2&Umb=1&Lmt=1&Mag=1&Max=1, and information about cloudiness statistics at http://eclipsophile.com, as well as simulation sites at https://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=4314 and http://eyes.jpl.nasa.gov. The American Astronomical Society's task force on the 2017 eclipse has a website at http://eclipse.aas.org. We are working to disseminate accurate information about how and why to observe the total solar eclipse, trying among other things to head off common misinformation about the hazards of looking at the sun at eclipses or otherwise. About 12 million Americans live within the 70-mile-wide band of totality, and we encourage others to travel into it, trying to make clear the difference between even a 99% partial eclipse and a total eclipse, with its glorious Baily's beads, diamond rings, and totality that on this occasion lasts between 2 minutes and 2 minutes 40 seconds

Thermal solar energy - application in industrial heat processes; Energia solar termica - aplicacion en procesos industriales de calor

Energy Technology Data Exchange (ETDEWEB)

Bonneschky, Alexis [Universidad Tecnica de Brandenburgo/Cottbus (Germany); Roth, Pedro; Cancino, Beatriz [Universidad Tecnica Federico Santa Maria, Valparaiso (Chile); Kanig, Thomas [Germany, (Georgia)

2000-07-01

agua en la industria, integrando a las empresas a traves de alguna estrategia que signifique una finalidad comun que beneficie a ambas. En este informe se presenta un proyecto realizado con dos empresas vecinas en la region de Branderburgo Alemania, que se benefician mutuamente por la instalacion de la energia solar, pero que son independientes en cuanto a sus propositos y capitales. La primera empresa es la fabrica FK-Solartchnik Kleinkoschen que produce colectores solares para agua caliente y le interesa desarrollar publicidad en este sentido, por lo que puso a disposicion de la segunda industria el area necesaria para instalar los colectores solares. La segunda empresa, es la FGT Glaswerk Kleinkoschen que produce planchas de vidrio de alta calidad, pero no cuenta con fachada disponible para la instalacion de ningun equipo solar. En esta industria, para la fabricacion del vidrio, se utiliza agua caliente. Las planchas de vidrio, ya cortadas, pasan a un proceso de lavado y secado. El lavado, requiere de un volumen de 1 m{sup 3}/dia agua caliente, a 600 grados Celsius y se realiza entre las 6:30 y las 15:30 h. El calentamiento del agua era efectuado con dos calentadores electricos (alrededor de 12 kW cada uno). Se diseno un equipo solar que permite disminuir las perdidas de energia en la acumulacion en las horas siguientes al proceso, donde se calienta el agua, y adicionalmente se cubre parte de los requerimientos del agua consumida. Este equipo tiene una superficie de colector de 27 m{sup 2}. Con este sistema, mas el aporte realizado por los trabajadores de la empresa, disminuyo la temperatura del agua de lavado en 20 K, sin afectar la calidad del producto y se redujo ademas el consumo anual de energia electrica de la empresa en 15,000 kWh, utilizando los recursos de la energia solar en un 50% del consumo total.

Horizontalidad, autogestión y protagonismo en Argentina

Directory of Open Access Journals (Sweden)

Marina Sitrin

2010-02-01

Full Text Available Este artículo trata los movimientos sociales autónomos que surgieron después de la crisis económica y la posterior rebelión popular en Argentina en diciembre de 2001. Los movimientos autónomos en la Argentina, como tantos movimientos en el mundo de hoy, son movimientos basados en la creación de nuevas relaciones sociales y comunidades ahora, al mismo tiempo que proyectan nuevas sociedadesy las relaciones en y para el futuro. Son movimientos con una concepción diferente del tiempo y el espacio. Son movimientos queentienden lo individual y lo colectivo como vinculados entre sí. Hay mucho en común entre la experiencia en la Argentina y las prácticas eideas anarquistas. Eso no significa que los que están creando nuevas relaciones y comunidades en la Argentina sean anarquistas. Lo que este artículo intenta hacer es basarse en las experiencias de los movimientos sociales argentinos para iniciar una reflexión sobre lasprácticas e ideas que los anarquistas pueden prestar a los distintos movimientos y comunidades autónomas; y, a su vez, sobre lo que los movimientos autónomos en la Argentina puede dar a las ideas y prácticas anarquistas.

Influence of Maltodextrin and Spray Drying Process Conditions on Sugarcane Juice Powder Quality / Influencia de la Maltodextrina y Condiciones del Proceso de Secado por Aspersión en la Calidad del Polvo de Jugo de Caña Panelera

Directory of Open Access Journals (Sweden)

Esteban Largo Ávila

2014-12-01

Full Text Available Abstract. Food powder liquid extracts obtained from fruits andvegetables can be manufactured using spray drying technologieswhile maintaining the quality attributes that are required by theindustrial sector. The aim of this study was to evaluate the effectof maltodextrin and spray drying process conditions on sugarcanejuice powder. A central composite design was used with a responsesurface analysis of four factors: (A maltodextrin (10-20%, (Binlet air temperature (130-150 °C, (C outlet air temperature (75-85 °C and (D atomization speed (22,000–26,000 rpm. Moisture,hygroscopicity, solubility, effective recovery and formation ofdeposits on the walls presented significant differences (P<0.05with respect to all factors, while, for water activity, no statisticaldifferences were observed. The optimization of the factors foundfor the drying operating conditions were: (A 20%, (B 130 °C, (C75 °C and (D 22,000 rpm, respectively. / Resumen. Polvos alimentarios de extractos líquidos obtenidos apartir de frutas y vegetales pueden ser manufacturados usandotecnologías de secado por aspersión y mantener los atributosde calidad requeridos en el sector industrial. El objetivo de esteestudio fue evaluar el efecto de la adición de maltodextrina y lascondiciones de procesamiento por secado por aspersión en laobtención de polvo de jugo de caña. Un diseño central compuestoy análisis mediante superficies de respuesta con cuatro factoresestadísticos fue establecido: (A maltodextrina (10-20%, (Btemperatura del aire de secado a la entrada (130-150 °C, (Ctemperatura del aire a la salida (75-85 °C y (D velocidad deldisco atomizador (22.000–26.000 rpm. Los resultados mostraronque las variables contenido de humedad del producto, solubilidad,recuperación efectiva y formación de depósitos de sólidos en lapared del secador son estadísticamente significativos (P<0,05 conrespecto a los factores estudiados, mientras que la actividad deagua del producto

The regulatory control of radioactive sources in Argentina

Energy Technology Data Exchange (ETDEWEB)

Rojkind, Roberto Hector [Autoridade Regulatoria Nuclear, Buenos Aires (Argentina)

1997-12-31

Argentina has been conducting nuclear activities for more than forty years, and as early as in 1956 established a Regulatory Authority. Procedures for compliance monitoring and enforcement have been in use in the regulatory control of radioactive sources, and regulatory standards and regulations had been set in Argentina, before the accident in Goiania. The conclusions drawn from that accident encouraged in Argentina the improvement of some regulatory procedures and helped to enhance the quality of the regulatory process. Therefore, the effectiveness of the control of spent radioactive sources has gradually increased, and enforcement actions to prevent radioactive sources ending up in the public domain improved. Some lessons learned in Argentina from the accident in Goiania and the main characteristics of an effective enforcement program helpful to prevent radiological accidents in industrial, medical, research and teaching uses of radioactive sources are presented. (author) 9 refs; e-mail: rrojkind at sede.arn.gov.br

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

Energy Technology Data Exchange (ETDEWEB)

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

1997-12-31

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

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

Energy Technology Data Exchange (ETDEWEB)

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

1996-12-31

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

Prospect for Development of Open Access in Argentina

Science.gov (United States)

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

2013-01-01

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

Economy-wide impacts of biofuels in Argentina

International Nuclear Information System (INIS)

Timilsina, Govinda R.; Chisari, Omar O.; Romero, Carlos A.

2013-01-01

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

Tareas que realizan los bibliotecarios universitarios en Argentina

Directory of Open Access Journals (Sweden)

Werner Agazzi

2011-08-01

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

Computing and Education in Argentina, Uruguay and Paraguay.

Science.gov (United States)

Sadowsky, Manuel

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

The nuclear research centre at Bariloche, Argentina

International Nuclear Information System (INIS)

Abriata, J.P.

2001-01-01

The nuclear research centre at Bariloche (CAB) is one of the four centres under the Atomic Energy Commission of Argentina (CNEA). The research programme of CAB addresses various issues like nuclear reactor development, nuclear fuel and fuel cycle, applications of radioisotopes and radiation, and waste management. There is also a basic nuclear science component. The human resource development in the areas of physics and nuclear engineering is done in an associated Balseiro Institute which has undergraduate and graduate programmes as well as doctoral and postdoctoral research. The Centre interacts well with the society and provides services in the nuclear area. It has a close interaction with the nuclear sector of Argentina as also with many international organisations. Regulatory control over the Centre is carried out by the Nuclear Regulatory Authority of Argentina. (author)

Comparative study of series of solar radiation; Estudio comparativo de series de radiacion solar

Energy Technology Data Exchange (ETDEWEB)

Adaro, Agustin; Cesari, Daniela; Lema, Alba; Galimberti, Pablo; Barral, Jorge [Universidad Nacional de Rio Cuarto, (Argentina)

2000-07-01

In any team or solar device that it seeks to be designed and dedicated to the use of the solar energy it will be had the most appropriate information on the radiation levels. Being this source of dependent energy of the atmospheric and meteorological fluctuations, it is that requires have the information best regarding the quantity and variability of the available solar energy. A road is already the statistical treatment of the data available, so much of solar radiation as of hours of sun. This focus generates a lot of expectation for the biggest quantity in information regarding the hours of existent sun. This bigger information of hours of sun is due to that the mensurations are carried out with instruments called heliografos with a level of complexity and much smaller cost that the instruments of radiation mensuration. Among the heliografos the most used one is that of Campbell-Stokes, and it is the one that you had installed in most of the meteorological stations of Argentina and the World, for what the information of hours of sun is the one that more is plentiful. The present work has for objective to find an interrelation between the measured series of hours of sun and irradiation. The study is carried out using models of temporary series and the pattern of Angstrom-Page. The are carried out a study of the generation of radiation sequences using models of temporary series and the pattern of Angstrom-Page. They are carried out a study of the generation of radiation sequences using the concept of the Chains of Markov. Rio Cuarto's series are analyzed for being determined the transfer function among both series, and the values of global solar radiation are obtained for towns of the same region. They are the coefficients of Anstrom-Page's Equation for Rio Cuarto. They are the values monthly means for these two methods and results are compared. [Spanish] En cualquier equipo o dispositivo solar que pretenda ser disenado y destinado al aprovechamiento de

The energy sector in Argentina

International Nuclear Information System (INIS)

2016-01-01

This article first outlines that Argentina produces an important part of its hydrocarbon consumption and comment various aspects of this production: hydrocarbons are at the heart of the Argentinian energetic model; conventional hydrocarbon reserves are however decreasing; the public operator remains the main actor even though the market is opened to multinational companies. The article then describes the crisis faced by this energetic model: the energy balance is now a burden; the increasing unbalance between production and consumption can be explained by supply-related as well as demand-related factors; authorities must intervene on hydrocarbon prices and subsidize the oil price on the domestic market. It appears that the future for hydrocarbons in Argentina relies on non-conventional hydrocarbons. Bio-fuels, a key sector of the Argentinian economy, are a matter of trade dispute with the EU and the USA. Apart from hydroelectricity (some new projects are planned), renewable energies are very few developed in Argentina. Appendices propose a graph of the distribution of energy consumption among the different sources, a map indicating locations of the main exploited hydrocarbon deposits, a presentation of mechanisms implemented to subsidize hydrocarbon production

Nuclear safeguards in Brazil and Argentina: 25 years of ABACC

Science.gov (United States)

Kassenova, Togzhan

2017-11-01

As possessors of advanced nuclear technology, Brazil and Argentina bear special responsibility for helping the international community and neighbors in their region feel confident that their nuclear programs are peaceful, secure, and safe. Over the past 25 years, the Brazilian-Argentine Agency for Accounting and Control of Nuclear Materials (ABACC) has played an indispensable role in strengthening such confidence by implementing nuclear safeguards in the two countries. Today, ABACC carries out safeguards inspections at a total of 76 nuclear facilities in Brazil and Argentina. This article describes how Brazil and Argentina view trends in the global nonproliferation regime and international nuclear safeguards, and explains how these trends relate to unique challenges and opportunities facing Brazil, Argentina, and ABACC.

Communications received from Argentina and Brazil

International Nuclear Information System (INIS)

1988-05-01

The document reproduces the Joint Declaration on Nuclear Policy signed by the Presidents of Argentina and Brazil on 30 November 1985, the Protocol on Nuclear Co-operation between Argentina and Brazil signed on 10 December 1986, the Joint Declaration on Nuclear Policy signed by the two Presidents on 10 December 1986, the Joint Declaration on Nuclear Policy signed by the two Presidents on 17 July 1987 and the Joint Declaration on Nuclear Policy (IPERO Declaration) signed by the two Presidents on 8 April 1988

Brasil, Argentina e América do Sul

Directory of Open Access Journals (Sweden)

Paulo Nogueira Batista Jr.

2005-12-01

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

LAS ESPECIES DE MUHLENBERGIA (POACEAE: CHLORIDOIDEAE DE ARGENTINA

Directory of Open Access Journals (Sweden)

Peterson Paul

2011-06-01

Full Text Available Se presenta un estudio taxonómico de las especies nativas argentinas del géneroMuhlenbergia, basado en el análisis de los especímenes depositados en 48 herbarios.Se analizan diversos aspectos relativos a la clasifi cación, la nomenclatura y lavariación morfológica de los caracteres. Muhlenbergia está representado enArgentina por 18 especies nativas. Se proporcionan claves para reconocer lasespecies presentes en el país, así como también descripciones de éstas, sinónimos,ilustraciones, distribución geográfica y algunos comentarios morfológicos yecológicos. Muhlenbergia breviaristata (Hack. Parodi y Muhlenbergia holwayorumHitchc., se reducen como sinónimos del híbrido Muhlenbergia angustata (J. PreslKunth × M. rigida (Kunth Kunth. Muhlenbergia diversiglumis Trin. se cita porprimera vez para la Argentina. Por otra parte, las especies Muhlenbergia tenella(Kunth Trin. y Muhlenbergia tenuissima (J. Presl Kunth se excluyen de la fl orade Argentina.

Biodiversity information system of the national parks administration of Argentina

Directory of Open Access Journals (Sweden)

Leonidas Lizarraga

2014-06-01

Full Text Available Introduction The Biodiversity Information System (BIS of the National Parks Administration of Argentina (NPA was launched in 2002, with the support of the Global Environmental Fund (GEF through the Biodiversity Conservation Project in Argentina. The BIS consists of a set of thematic databases and Geographic Information System (GIS set to support management decisions, and to provide information to the general public on the national protected areas of Argentina. Currently, the BIS-NPA progr...

Update on women in physics in Argentina

Science.gov (United States)

Brudny, Vera; Lagorio, Cecilia; Frechero, Marisa; Tamarit, Francisco

2013-03-01

Data collected 10 years ago in Argentina concluded that women in physics were underrepresented in many instances and that a "crystal ceiling" was firmly in place. We have collected updated data for several indicators and compared them with those obtained 10 years ago. Although there is not a clear conclusion to be drawn from this comparison, we try to explain the results within the framework of the changes in scientific policies in Argentina.

Transnational Crime Fictions and Argentina's Criminal State

OpenAIRE

Caballero, Juan

2013-01-01

My dissertation, titled "Transnational Crime Fictions and Argentina's Criminal State," proposes a new understanding of the dictatorship novels of Ricardo Piglia, Juan José Saer, and Manuel Puig grounded in their shared appropriation from popular crime fiction. Across the 1940's, 50's, and 60's, a wide range of popular crime fiction was translated, written, theorized, printed and reprinted in Argentina, and these popular genres grew steadily in readership, visibility, and cultural legitimacy....

China, Argentina agree to further strategic ties

Institute of Scientific and Technical Information of China (English)

2011-01-01

According to Xinhua,China and Argentina have agreed to further enhance mutual trust and their strategic partnership as the two emerging economies are playing an increasingly important role in the world arena.“China will work with Argentina to strengthen strategic mutual trust,expand cooperation and coordination within multilateral frameworks in order to promote bilateral ties and benefit the two peoples,” Vice President Xi Jinping told Argentine Foreign Minister Hector Timerman on September 9.

Solar Observations at Submillimeter Wavelengths

Science.gov (United States)

Kaufmann, P.

We review earlier to recent observational evidences and theoretical motivations leading to a renewed interest to observe flares in the submillimeter (submm) - infrared (IR) range of wavelengths. We describe the new solar dedicated submillimeter wave telescope which began operations at El Leoncito in the Argentina Andes: the SST project. It consists of focal plane arrays of two 405 GHz and four 212 GHz radiometers placed in a 1.5-m radome-enclosed Cassegrain antenna, operating simultaneously with one millisecond time resolution. The first solar events analyzed exhibited the onset of rapid submm-wave spikes (100-300 ms), well associated to other flare manifestations, especially at X-rays. The spikes positions were found scattered over the flaring source by tens of arcseconds. For one event an excellent association was found between the gamma-ray emission time profile and the rate of occurrence of submm-wave rapid spikes. The preliminary results favour the idea that bulk burst emissions are a response to numerous fast energetic injections, discrete in time, produced at different spatial positions over the flaring region. Coronal mass ejections were associated to the events studied. Their trajectories extrapolated to the solar surface appear to correspond to the onset time of the submm-wave spikes, which might represent an early signature of the CME's initial acceleration process.

All projects related to Argentina | Page 7 | IDRC - International ...

International Development Research Centre (IDRC) Digital Library (Canada)

Region: Americas, Argentina, South America. Program: Climate Change. Total Funding: CA$ 995,000.00. Youth Smoking in Stressed Environments : Determinants and Resiliency (Argentina, Colombia, Palestine). Project. Numerous studies have shown that the earlier an individual starts smoking, the harder it is to give it up.

Nuclear Energy Stakeholders in Argentina

International Nuclear Information System (INIS)

Gadano, Julian

2017-01-01

Mr Gadano, Undersecretary for Nuclear Energy, Argentina spoke from the perspective of a country looking forward to becoming a member of the NEA. He reviewed the place of nuclear energy in his country's energy mix and called attention to its role in positively addressing the global challenges of climate change and energy security. Mr Gadano also described the federal system which governs Argentina. Drawing on his expertise as a lawmaker and nuclear regulator but also as an academic sociologist, he stressed that reaching agreement on siting initiatives for example requires a sustainable relation with stakeholders, including regional governments. This is important because in the end, 'the best project is the one you can finish'

Argentina set for privatization

International Nuclear Information System (INIS)

Chynoweth, E.

1992-01-01

Buyers are lining up for Argentina's two big state-controlled petrochemical groups, Buenos Aires-based Petroquimica General Mosconi (PGM) and Petroquimica Bahia Blance (PBB). However, feedstock supply contracts with government-owned oil group Yacientos Petroliferos Fiscales (YPG) and gas group Gas del Estado hold the key to both sales. Shell Compania Argentina Petroleo SA (CAPSA), Perez Companc, and Global Petroleum have already bought PGM tender documentation. Shell says it will bid for PGM if the feedstock contract with YPF is acceptable. In addition to price and volume, Shell says the length is critical; it wants a 15-year deal, but would settle for 11. YPF initially sought a five-year contract. PGM, which produces 300,000 m.t./year of aromatics, plus oxo alcohols, methanol, and methyl tert-butyl ether, has sales of $150 million/year

The other immigration to Argentina: the case of Adolf Eichmann

Directory of Open Access Journals (Sweden)

Christian Cwik

2014-01-01

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

El IDRC en Argentina

International Development Research Centre (IDRC) Digital Library (Canada)

comercio capaces de sostener el crecimiento y reducir la pobreza. ... Rosario, en Argentina, se ha convertido en un ejemplo internacional para la agricultura urbana gracias a la ... para evaluar los riesgos y beneficios de esta tecnología para ...

Activities with Argentina

International Nuclear Information System (INIS)

1999-01-01

In 1989, the US Department of Energy (DOE) responded to the need to redirect resources from weapons production to environmental restoration and waste management by establishing the Office of Environmental Management (EM) and delegated to this office the responsibility of cleaning up the US nuclear weapons complex. Now in its eight year, EM's mission has three central facets: (1) to assess, remediate, and monitor contaminated sites and facilities; (2) to store, treat, and dispose of waste from past and current operations; and (3) to develop and implement innovative technologies for environmental cleanup. To this end, EM has established domestic and international cooperative technology development programs, including one with the Republic of Argentina. Cooperating with Argentine scientific institutes and industries meets US cleanup objectives by: (1) identifying and accessing Argentine EM-related technologies, thereby leveraging investments and providing cost-savings; (2) improving access to technical information, scientific expertise, and technologies applicable to EM needs; and (3) fostering the development of innovative environmental technologies by increasing US private sector opportunities in Argentina in EM-related areas

Energy improvement of a conventional dwelling in Argentina through thermal simulation

Energy Technology Data Exchange (ETDEWEB)

Filippin, C. [CONICET-CC302, Santa Rosa 6300, La Pampa (Argentina); Flores Larsen, S. [INENCO-Instituto de Investigaciones en Energias No Convencionales, Universidad Nacional de Salta, CONICET, Avda. Bolivia 5150, CP 4400 Salta Capital (Argentina); Lopez Gay, E.

2008-10-15

This paper analyses the design, technology, thermal behaviour, and energy consumption of both a conventional and a refurbished dwelling located in a region with a temperate-cold climate in central Argentina. The thermal behaviour and the energy consumption of the conventional building were monitored during winter. The experimental data were analysed and included in a simulation of the transient thermal behaviour of the house. Measurements and simulation were in agreement, showing a mean deviation below 0.5{sup o}C. To reduce the heating and cooling loads, the dwelling was refurbished and its thermal behaviour was studied through a computer simulation, for the critical seasons (winter and summer) and for two occupancy schedules (with and without inhabitants). The refurbishment included passive solar heating, shading, and an insulated envelope. These successful changes allowed energy savings of 66% and 52% for winter and summer, respectively. (author)

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

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Delia A. Enria

2010-06-01

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

A Argentina depois da conversibilidade: um caso de novo-desenvolvimentismo?

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André Moreira Cunha

2009-03-01

Full Text Available This paper analyses the economic recovery in post-Convertibility Argentina. We try to identify if there are evidences to support the suggestion that Argentina could be an example of the so-called "new developmentalism".

Overview and perspectives for Open Access development in Argentina

Directory of Open Access Journals (Sweden)

Sandra Miguel

2013-04-01

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

Radiation vulcanization in Argentina

International Nuclear Information System (INIS)

Ferenaz, Guillermo W.; Smolko, Eduardo E.

1999-01-01

The possibilities of using in Argentina the radiation process to vulcanize natural latex are analyzed. Experimental studies to define the irradiation conditions have been carried out and the preliminary elaboration of an irradiation device that includes the chemical reactor has been started. (author)

78 FR 46610 - Lemon Juice From Argentina and Mexico

Science.gov (United States)

2013-08-01

... Argentina and Mexico Determination On the basis of the record \\1\\ developed in the subject five-year reviews... determines that termination of the suspended antidumping duty investigation on lemon juice from Mexico would...), entitled Lemon Juice from Argentina and Mexico: Investigation Nos. 731-TA-1105-1106 (Review). By order of...

78 FR 47006 - Lemon Juice From Argentina and Mexico

Science.gov (United States)

2013-08-02

... Argentina and Mexico Determination On the basis of the record \\1\\ developed in the subject five-year reviews... determines that termination of the suspended antidumping duty investigation on lemon juice from Mexico would...), entitled Lemon Juice from Argentina and Mexico: Investigation Nos. 731-TA-1105-1106 (Review). By order of...

Update on women in physics in Argentina

OpenAIRE

Brudny, Vera Leonor; Lagorio, Cecilia; Frechero, Marisa Alejandra; Tamarit, Francisco

2016-01-01

Data collected 10 years ago in Argentina concluded that women in physics were underrepresented in many instances and that a “crystal ceiling” was firmly in place. We have collected updated data for several indicators and compared them with those obtained 10 years ago. Although there is not a clear conclusion to be drawn from this comparison, we try to explain the results within the framework of the changes in scientific policies in Argentina. Fil: Brudny, Vera Leonor. Universidad de Buenos...

Education and Dictatorship in Argentina 1976-1983

OpenAIRE

Kaufmann, Carolina

2000-01-01

Este artículo señala aspectos generales del autodenominado “Proceso” acaecido en Argentina (1976-1983). Se ofrecen evidencias de censura e imposición autoritaria en el sistema educativo. Asimismo, se explicitan elementos constitutivos de la educación personalizada perennialista y de la pedagogía de los valores que fue adoptada durante aquellos años. This article indicates general aspects of the self-styled "Process" occurred in Argentina (1976-1983). Evidence of censorship and authoritar...

Comportamiento temporal de la radiación solar global en la ciudad de Bahía Blanca, Argentina

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María Eugenia Fernández

2015-08-01

Full Text Available La energía que irradia el Sol es la principal causa de las diferencias climáticas en nuestro planeta y sustenta todos los procesos vitales. Si bien dicha emisión es prácticamente constante para escalas temporales breves, la radiación incidente en cada sitio es variable y depende en gran medida de los estados atmosféricos. En este sentido, la cantidad de cielo cubierto por nubes es un factor primordial, ya que por su capacidad de absorción y reflexión estas pueden reducir sustancialmente la radiación que alcanza la superficie terrestre. El objetivo del presente trabajo es caracterizar el comportamiento de la radiación solar global en la ciudad de Bahía Blanca (Argentina para el período 2001-2011 y comparar los valores radiativos registrados en los años 2007-2011 con datos referidos a coberturas nubosas a fin de establecer relaciones entre ambas variables. La radiación promedio para el intervalo analizado fue de 187,36 W/m 2 . En enero y en diciembre todos los días se registraron radiaciones mayores a 227,4 W/m 2 y en junio y julio la radiación siempre osciló entre 51,5 W/m 2 y 110,1 W/m 2 . En el transcurso del día la radiación alcanza su máximo valor entre las 13:00 h y 13:30 h. En lo que respecta a la relación entre la cobertura nubosa y la radiación global se observaron reducciones de hasta un 10,86 % entre cielos despejados (0 octas y parcialmente nublados (1-5 octas y de hasta 44,35 % entre cielos despejados y cubiertos (6-8 octas. En término medio, los días claros reciben alrededor de un 16 % más de radiación que todos los días en conjunto.

Bolivia's gas heads for Brazil as Argentina waits - and watches

International Nuclear Information System (INIS)

Knight, P.

1998-01-01

The first 1,800 km stretch of a 3,400 km natural gas pipeline from Bolivia to Brazil will start operating in December. First planned 50 years ago, the pipeline has long been expected to result in an immediate surge of gas use in Brazil. However, impending deep recession in Brazil makes this prospect less likely despite the power shortages which indicate the need for considerable gas imports. Initially, most Bolivian gas will flow through Brazil to Argentina. But gas production is expanding rapidly in Argentina and the supply contract with Bolivia ends in 1999. Plans are well advanced to build two gas lines into the south of the Brazil from Argentina. Ultimately, it is anticipated that Argentina, which has abundant reserves and a virtually saturated domestic market, will become the principal source of natural gas for Brazil. (UK)

1 Estudio Sectorial Sector lácteo de Argentina

International Development Research Centre (IDRC) Digital Library (Canada)

Resumen: La producción de leche y productos lácteos conforma en Argentina un importante complejo productivo, de larga trayectoria histórica y gran impacto económico y social. En Argentina, esta industria conforma un oligopolio diferenciado en el que coexisten unas pocas grandes empresas nacionales y ...

CALYPTRANTHES TRICONA (MYRTACEAE, NUEVA CITA PARA LA FLORA ARGENTINA

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Sara G. Tressens

1996-01-01

Full Text Available Calyptranthes tricona D. Legrand (Myrtaceae es reportada por primera vez para la Argentina.  Se incluyen una descripción y una ilustración. Se presenta un clave para la identificación de las especies argentinas de Calyptranthes se da. Se discuten algunas observaciones sobre la nomenclatura C.concinna DC.

The text of the agreement of 22 July 1977 between Argentina and the Agency for the application of safeguards in connection with a co-operation agreement between Argentina and Canada

International Nuclear Information System (INIS)

1995-01-01

The Agreement between the Republic of Argentina, the Federative Republic of Brazil, the Brazilian-Argentine Agency for Accounting and Control of Nuclear Materials and the International Atomic Energy Agency for the Application of Safeguards came into force on 4 March 1994. As a result of the coming into force of the aforesaid Agreement for Argentina, the application of safeguards under the Agreement of 22 July 1977 between Argentina and the IAEA for the application of safeguards in connection with a co-operation agreement between Argentina and Canada has been suspended

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

Directory of Open Access Journals (Sweden)

Liliana Katinas

2007-07-01

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

Argentina's YPF hones in on privatization

International Nuclear Information System (INIS)

Anon.

1991-01-01

This paper reports on Argentina's push to privatize and attract more foreign investment to its petroleum sector which continues to gather momentum. The Argentine government plans by year end 1992 to sell unprofitable assets of Yacimientos Petroliferos Fiscales, then sell as much as 50% of the state oil company through an international stock offering. If privatization proceeds as expected, YPF Pres. Jose Estenssoro the, the company's stock will be offered to private investors early in 1993. The company was founded in 1922. By March 1992, Argentina also will begin selling all assets of state owned Gas del Estado (GDE) through an international bidding process expected to take about 18 months

Argentina v globalizačních procesech

OpenAIRE

Chervets, Tamara

2009-01-01

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

Pro-Market Educational Governance: Is Argentina a Black Swan?

Science.gov (United States)

Beech, Jason; Barrenechea, Ignacio

2011-01-01

In this article we explore ways in which pro-market discourses have been interpreted in policy initiatives in Argentina since the 1970s. Our argument is that even though pro-market discourses have guided reforms in many aspects of public policies in Argentina, the arena of education has overall been resistant to taking them up. The first part of…

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

Energy Technology Data Exchange (ETDEWEB)

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

2010-07-01

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

A short history of the beginnings of hospital information systems in Argentina.

Science.gov (United States)

Yácubsohn, V

2012-01-01

To describe the development of early health information systems in Argentina and their impact on the development of professional societies in the discipline The first hospital information systems and health surveillance systems in Argentina are described and related to the rise of professional organizations for health informatics. The early health information systems in Argentina are related to precursor developments in medical informatics. Argentina saw a number of hospital information systems developed starting in 1977, which had an important influence on the practice and experience in medical informatics in the country, and the participation of Argentine professionals in national, regional, and international activities in the field.

Biotechnology in Argentina: New products, new multilateral challenges

Directory of Open Access Journals (Sweden)

Luciano M. Donadio Linares

2016-06-01

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

Hongos patógenos de insectos en Argentina (Zygomycetes: Entomophthorales

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C.C López Lastra

2006-06-01

Full Text Available Se informa de tres especies de hongos Entomophthorales en insectos encontrados en cultivos agrícolas en la Provincia de Buenos Aires, Argentina: Zoophthora radicans Batko (Brefeld; Entomophthora planchoniana Cornu y Pandora gammae (Weiser Humber. Se incluyen las medidas de las estructuras fúngicas.Pathogenic fungi of insects from Argentina (Zygomycetes: Entomophthorales. Three species of Entomophthorales entomopathogenic fungi (Zygomycotina: Zygomycetes have been identified from insects in agricultural crops (Buenos Aires Province, Argentina: Zoophthora radicans Batko (Brefeld; Entomophthora planchoniana Cornu and Pandora gammae (Weiser Humber. Fungal structure measurements are reported. Rev. Biol. Trop. 54(2: 311-315. Epub 2006 Jun 01.

Influencia de un sólido sobre el secado de mezclas líquidas parcialmente miscibles

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M. Vargas

2006-01-01

Full Text Available Un estudio experimental del secado convectivo de un sólido humedecido con una mezcla líquida que exhibe separación de fases durante el proceso de evaporación ha sido efectuado. Los experimentos fueron realizados en un secador de túnel a escala de laboratorio bajo diferentes condiciones de operación tales como temperatura y velocidad del gas así como diferentes composiciones de las mezclas líquidas. Se humedeció el sólido con mezclas binarias y ternarias, y se efectuó la evaporación a partir de la superficie libre líquida. Se utilizo como humedad el sistema binario agua-hexano y la mezcla ternaria agua-hexano-etanol, ambos involucrados en la extracción de biopesticida a partir de semillas de nim. Esferas de vidrio y semillas de nim trituradas fueron usadas como sólido. La densidad y el índice de distribución másico de las fases tienen gran influencia en el proceso de evaporación. Si la fase menos densa del hexano esta en exceso, la superficie es cubierta solamente por esta fase y no existe evaporación de la otra fase hasta que el índice de distribución másico es tal que la segunda fase es expuesta al gas. La presencia de un sólido poroso interrumpe este patrón y la fase más densa puede ser removida simultáneamente incluso a bajas fracciones de esta última. En este caso, también la forma en que el sólido fue humedecido tiene influencia en el proceso.

Argentina's experience with parallel exchange markets: 1981-1990

OpenAIRE

Steven B. Kamin

1991-01-01

This paper surveys the development and operation of the parallel exchange market in Argentina during the 1980s, and evaluates its impact upon macroeconomic performance and policy. The historical evolution of Argentina's exchange market policies is reviewed in order to understand the government's motives for imposing exchange controls. The parallel exchange market engendered by these controls is then analyzed, and econometric methods are used to evaluate the behavior of the parallel exchange r...

Preparación de microesferas mediante secado por aspersión Preparation of microspheres through spray drying

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Orestes Darío López Hernández

2008-12-01

Full Text Available La industria farmacéutica moderna busca constantemente tecnologías para la obtención de transportadores de diferentes fármacos como citostáticos, antiinflamatorios, péptidos y hormonas, entre otros, que impliquen una reducción de su toxicidad y una liberación sostenida o controlada para lograr el efecto terapéutico con una sola dosis. Dentro de estas tecnologías se destaca el empleo de microesferas biodegradables de ácidos polilácticos como sistemas poliméricos matriciales de liberación controlada. En el presente trabajo se exponen aspectos relevantes relacionados con la tecnología de obtención de microesferas mediante secado por aspersión conocido también como Spray drying, el cual tiene como ventajas una alta eficiencia de encapsulación además de ser un método rápido, continuo, relativamente sencillo con respecto a otros existentes, y principalmente brinda la posibilidad de ser escalado hasta nivel de producción.The modern pharmaceutical Industry search constantly technologies for obtaining drugs targeting as antineoplasics, peptides and hormones, among other that imply a toxicity reduction, and sustained or controlled release to achieve the therapeutic effect with a single dose. These technologies employment of biodegradable microspheres of polylactic acids as matricial polymeric systems for controlled release. This work related aspects with the technology of microspheres obtaining by Spray drying which has as advantages, a high encapsulation efficiency, continuous method, relatively simple it offers the possibility of being scale up until production level.

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

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Marina Gabriela Zunino

2012-04-01

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

Las Dactylopiidae y Diaspididae (Hemiptera, Coccoidea de la Colección Kenneth Hayward, Tucumán, Argentina The Dactylopiidae and Diaspididae (Hemiptera, Coccoidea of the Kenneth Hayward Collection, Tucumán, Argentina

Directory of Open Access Journals (Sweden)

Lucía E. Claps

2006-03-01

Full Text Available Se estudió la colección Kenneth Hayward depositada parte en el Instituto Miguel Lillo (IMLA y parte en la Estación Experimental Agroindustrial "Obispo Colombres" (EEAOC de Tucumán, Argentina. Se citan cuatro especies de Dactylopiidae y 32 de Diaspididae con sus respectivas plantas huéspedes. Se redescribe e ilustra a Duplaspidiotus koehleri Lizer y Trelles y Pallulaspis lantanae Green & Laing, descriptas originalmente para la Argentina. Se cita por primera vez al género Rugaspidiotus Mc Gillivary para la Argentina.The Kenneth Hayward collection housed at the Instituto Miguel Lillo (IMLA and at Estación Experimental Agroindustrial "Obispo Colombres" (EEAOC both in Tucumán, Argentina, was studied. Four Dactylopiidae and 32 Diaspididae species with their host plants are listed. Duplaspidiotus koehleri Lizer y Trelles and Pallulaspis lantanae Green & Laing, are redescribed and illustrated; the two species were originally described from Argentina. The genus Rugaspidiotus Mc Gillivary is recorded for the first time from Argentina.

Floods, Droughts and Farming on the Plains of Argentina and ...

International Development Research Centre (IDRC) Digital Library (Canada)

2015-04-01

Floods, Droughts and Farming on the Plains of Argentina and Paraguay, Pampas and Chaco Regions ... End Date. April 1, 2015 ... Argentina, South America, Paraguay, North and Central America ... IDRC is now accepting applications for this year's IDRC Doctoral Research Awards (IDRA). ... Careers · Contact Us · Site map.

The regulatory control of radioactive sources in Argentina

International Nuclear Information System (INIS)

Rojkind, R.H.

1998-01-01

Argentina has been conducting nuclear activities for more than forty years, and had established a Regulatory Authority as early as in 1956. Procedures for compliance monitoring and enforcement have been in use in the regulatory control of radioactive sources, and regulatory standards and regulations were in force in Argentina before the accident in Goiania. The conclusions drawn from the Goiania accident encouraged the Argentine authorities to improve some regulatory procedures and helped to enhance the quality of the regulatory process. As a result, the effectiveness of the control of spent radioactive sources has gradually increased, and enforcement actions to prevent radioactive sources ending up in the public domain have improved. Lessons learned in Argentina from the accident in Goiania are presented as well as the main characteristics of an effective enforcement programme to prevent radiological accidents when radioactive sources are used for industrial, medical, research and teaching purposes. (author)

Measurements of atmospheric fallout in Argentina

International Nuclear Information System (INIS)

Canoba, A.C.; Lopez, F.O.; Bruno, H.A.

1998-01-01

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

Burden of Serious Fungal Infections in Argentina

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Fernando O. Riera

2018-04-01

Full Text Available The number of fungal infections at any given time in Argentina is not known. Here we estimate the burden of serious fungal infections in Argentina for the first time. Specific population statistics were searched from multiple sources, local literature was identified, and estimates made. Some additional data were sourced from the Ministry of Health, the Global Initiative for Asthma (GINA program, and national haematology and transplant societies. Argentina has a population of 43.8 million, with 25% of this total being children under 15 years. The predicted candidemia annual incidence is 2193 cases, with 50% occurring in the ICU. At a 6% prevalence rate, an estimated 593,695 women suffer from recurrent vulvovaginal candidiasis. Invasive aspergillosis is relatively common because of high smoking and chronic obstructive pulmonary disease (COPD rates, with 268 cases in immunocompromised patients and another 1938 in the 168,000 COPD patients admitted to hospital. Asthma is also common, affecting 14% of adults, and so allergic bronchopulmonary aspergillosis (ABPA and severe asthma with fungal sensitization (SAFS are major problems. An estimated 432 cases of cryptococcal meningitis (CM—90% of them in AIDS patients—and 1177 cases of Pneumocystis pneumonia (PCP occur each year. The estimated annual case number of disseminated histoplasmosis is 404 in AIDS patients, almost as frequent as CM. Paracoccidioidomycosis annual incidence is estimated at 219, and coccidioidomycosis at 16 cases. At least 881,023 people (>2.01% in Argentina are affected by a serious fungal disease annually, with considerable morbidity and mortality.

La letteratura italiana tradotta in Argentina

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Silvia Cattoni

2017-11-01

Full Text Available In due secoli di storia della letteratura argentina, lo sviluppo della letteratura italiana tradotta è in stretto rapporto con i propositi pedagogici o estetici determinati dal contesto culturale dei diversi momenti storici. In linea di massima, è possibile affermare che, dalla conformazione dello Stato nazionale e durante i primi decenni del XX secolo, la traduzione letteraria mirava ad ampliare l’orizzonte culturale di un lettore che si consolidava al ritmo della fiammante nazione. Nelle fasi successive e in stretto rapporto con la politica culturale portata avanti da Victoria Ocampo a partire dal 1931 tramite la rivista Sur e il suo posteriore progetto editoriale, la traduzione è stata soprattutto una pratica di scrittura che ebbe un’influenza decisiva nell’ordito della letteratura nazionale favorendo il suo rinnovo e incentivando le versioni di traduttori argentini. Fu questa un’apertura che favorì, durante la seconda metà del secolo, nel contesto della ricezione della letteratura universale, l’ingresso della letteratura italiana in Argentina. Il presente lavoro tratta in maniera sistematica, ma provvisoria, il panorama della letteratura italiana tradotta in Argentina. Lo scopo principale comporta il registro dei momenti più fecondi e l’interpretazione degli esiti ottenuti nei confronti della traduzione nel sistema letterario nazionale.

Legislation and Organization of Radiological Protection in the Republic of Argentina

International Nuclear Information System (INIS)

Gonzalez, A.; Carrea, A.; Nowotny, G.

1979-01-01

The history of legislation and organization of radiological protection goes hack to 1950 in Argentina. The terms of references of the National Commission of Atomic Energy in Argentina are outlined and the actual organization of the authority is also presented. (author)

Migration trends in Argentina: immigration and exile Dinámica migratoria Argentina: inmigración y exilios

Directory of Open Access Journals (Sweden)

Fernando Osvaldo ESTEBAN

2010-10-01

Full Text Available Through the development of a typology of migration flows, the paper reviews the most important trends in the history of Argentina: the massive European immigration, internal migrations, and immigration from neighbouring countries. The paper then discuss the current process of emigration from Argentina, and the return of old immigrants. The paper assess the economic factors involved through an analysis of unemployment, poverty and income distribution indicators in recent years. Finally, the paper examines the possibility of diminishing the recent emigration trend due to economic reasons. A partir de una tipología de flujos migratorios se realiza un repaso de aquellos más importantes en la historia de Argentina: la masiva inmigración europea, las migraciones internas y aquellas provenientes de países limítrofes. Posteriormente describe el actual proceso de emigración de argentinos y retorno de antiguos inmigrantes. Se abordan luego las causas económicas que lo produjeron a través del estudio de la evolución de los indicadores de desempleo, pobreza y distribución del ingreso en el país durante los últimos años. Finalmente, plantea la posibilidad de aprehender este flujo emigratorio como un exilio económico.

76 FR 80870 - Notice of Determination of Pest-Free Areas in Mendoza Province, Argentina

Science.gov (United States)

2011-12-27

... ;D=APHIS-2010-0032. The first commenter acknowledged Argentina's history of successful Medfly control...] Notice of Determination of Pest-Free Areas in Mendoza Province, Argentina AGENCY: Animal and Plant Health... Southern and Central Oases in the southern half of Mendoza Province in Argentina as pest-free areas for...

Incremento de disolución de un derivado del furano mediante la técnica de secado por atomización Improvement of Furane derivate dissolution rate using spray drying technique

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Antonio Iraizoz Barrios

2012-06-01

Full Text Available Objetivo: incrementar la solubilidad en agua del 2-bromo-5-(2-bromo-2-nitrovinyl-furano (G1, un ingrediente farmacéuticamente activo sintetizado por el Centro de Bioactivos Químicos de la Universidad Central de Las Villas, con potente acción bactericida y fungicida, mediante la elaboración de macropartículas de dispersiones sólidas utilizando un proceso de secado por atomización. Métodos: se realizó un ensayo preliminar de secado por atomización de la suspensión de G1, compuesta por: 10 g de G1, 1 g de Aerosil (Aerosil®, Degusa, Bélgica, 1 g de laurilsulfato de sodio y 100 mL de agua. La atomización se efectuó en un equipo de laboratorio (Buchi Mini Dryer spray a 90 ºC. La dispersión sólida obtenida fue caracterizada físico-químicamente mediante difracción de rayos X, granulometría láser por el método de difracción angular, calorimetría diferencial de barrido, microscopia electrónica de barrido y espectrofotometría de absorción infraroja. Resultados: las partículas obtenidas presentaron un pequeño tamaño, forma esférica y un incremento de la cristalinidad del G-1; no se encontraron interacciones entre los componentes de la dispersión ni presencia de productos de degradación, y la solubilidad del G-1 en agua resultó notablemente incrementada. Conclusiones: el producto obtenido por la técnica de secado por atomización incrementó apreciablemente la solubilidad del G1 sin afectar los grupos funcionales, responsables de la actividad terapéutica que se le reportan al ingrediente activo estudiado. Estos alentadores resultados sugieren la necesidad de continuar estudios para la optimización del proceso y realizar al producto obtenido ensayos de estabilidad con el objetivo de su futura inclusión en formas farmacéuticas de dosificación.Objective: to increase the solubility of 2-bromium-5(2-bromium-2-nitrovinyl-furane (G1, one pharmaceutically active ingredient with potent bactericidal and fungicidal action

Photovoltaic generating systems in rural schools in Neuquen Province, Argentina

Energy Technology Data Exchange (ETDEWEB)

Lawand, T.A.; Campbell, J. [Brace Research Institute, Quebec (Canada)

1997-12-01

During the period 1994-95, solar photovoltaic systems were installed at a number of schools in Neuquen Province, Argentina, by the Provincial electric utility, Ente Provincial de Energia del Neuquen. This was undertaken with funds provided by the Inter-American Development Bank. In all, there are 12 schools that have had photovoltaic generating systems installed. These generating systems are designed to provide electricity for the basic needs at the schools: primarily for lighting, and to operate small electrical appliances such as communication radios, televisions, VCR`s, AM/FM and short-wave radios. They do not provide enough energy to operate large consumption appliances such as washing machines, microwaves, refrigerators, power tools, etc. The program of provision of PV systems was supplemented with training on simple systems for cooking food or drying fruit, etc. These techniques are primarily intended for demonstration at the schools thus serving an educational role with the hope that they will be transmitted in time to the families of the students where the need is manifested the most.

Estudios de clima espacial basados en observaciones solares históricas: recientes progresos y perspectivas

Science.gov (United States)

Vaquero, J. M.

During the last decades, an effort has been made to improve the sunspot number time-series, one of the more useful data set for space climate stud- ies, using historical solar observations. Moreover, not only the sunspot number can be studied using these early solar records. During the last years, historical sources (i.e., sunspot drawings and solar radius measurements) have been also used to study the space climate. Here, I review some recent progress on these issues. In a hand, there are some periods with very few sunspot records and sunspot numbers are not so reliable in these intervals. I discuss the quality of sunspot records during these interesting periods: (a) 1610-1645, (b) 1721-1761, and (c) 1779-1795. On the other hand, I dis- cuss the reliability of early sunspot drawings, sunspot position data, and solar diameter determinations to study long-term variations in our Sun. Fi- nally, some information on historical documents from Argentina and Chile related with space climate are summarised. FULL TEXT IN SPANISH

Crisis y perspectivas de la industria automotriz argentina

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Damián Andrés Bil

2016-12-01

Full Text Available Con la conformación del Mercosur, la automotriz argentina se expandió. Durante los últimos años alcanzó récords de producción, exportaciones y ventas; al punto que se la señala como ejemplo de una nueva etapa productiva. No obstante, desde finales de 2013 el complejo experimenta una crisis que provocó una considerable caída de los indicadores, con suspensiones e incluso despidos en las empresas de autopartes. En este artículo, proponemos revisar los indicadores de la actividad (escala y mercado, productividad, costo laboral, saldo comercial en perspectiva histórica y en el contexto de la competencia internacional. El objetivo es determinar si la situación actual corresponde a un inconveniente coyuntural, o si por el contrario expresa límites históricos que la automotriz argentina no ha superado; y sus perspectivas. *Palabras clave: Argentina, automotriz, crisis, competitividad, Mercosur

Argentina: Brief Overview of Argentina’s INIS Activities

International Nuclear Information System (INIS)

Bavio, Mercedes

2015-01-01

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

Argentina: Social Sectors in Crisis. A World Bank Country Study.

Science.gov (United States)

World Bank, Washington, DC.

Based on the findings of a two month visit to Argentina by a World Bank Mission in November/December of 1988, this report summarizes current economic, education, and social policies in Argentina. The four major areas targeted are the social sectors, education, health care, and housing. The analysis identifies critical problems in the organization…

Argentina e Irán entre 1989 y 1999: Entre las sobras de los atentados terroristas y el cambio de política exterior argentina

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Paulo Botta

2012-01-01

Full Text Available Las relaciones argentino-iraníes se encuentran, a nivel político, en el punto más bajo de su historia. Suele afirmarse que tal situación es la relación directa de los atentados terroristas ocurridos en Buenos Aires en 1992 y 1994 donde las autoridades judiciales argentinas han presentado indicios que relacionarían a funcionarios iraníes. En este trabajo se afirma que aunque tales hechos han tenido influencia las relaciones argentino iraníes constituyen una variable dependiente de los modelos de inserción internacional de Argentina. En tal sentido, la década del gobierno de Carlos Menem (1989-1999 es estudiada como modelo para analizar tales cambios en la política exterior argentina y su impacto en las relaciones argentino-iraníes. Por otra parte, se ha incluido en el análisis el papel de lobbies comunitarios como grupos con incidencia en el proceso de toma de decisiones además de considerar las influencias externas como condicionantes de la política exterior argentina.

Gender, age, social disadvantage and quitting smoking in Argentina and Uruguay.

Science.gov (United States)

Niedzin, Mirosław; Gaszyńska, Ewelina; Krakowiak, Jan; Saran, Tomasz; Szatko, Franciszek; Kaleta, Dorota

2018-03-14

Cessation of tobacco use has the potential to provide the greatest immediate benefits for tobacco control. Understanding the social determinants of smoking cessation is an essential requirement for increasing smoking cessation at the population level. The purpose of this study was to analyze the socio-economic dimensions associated with cessation success among adults in Argentina and Uruguay. Data from the Global Adult Tobacco Survey (GATS), a cross-sectional, population-based, nationally representative survey conducted in Argentina (n=5,383) and Uruguay (n=4,833) was utilized. Univariable and multivariable logistic regression analyses with results being presented as odds ratios (OR) with 95% confidence intervals were applied to study differences among those respondents who sustained smoking abstinence (≥1 year) and those who continued smoking. The GATS study revealed that social gradients in tobacco quitting exist in Argentina and Uruguay. Being aged 25-34, particularly men in Uruguay, women in Argentina, low educated men in Argentina and having a lower asset index were associated with reduced odds for quitting. Factors that are driving differences in smoking cessation between diverse social groups in Latin America countries need to be considered when implementing relevant interventions to ensure tobacco control strategies work effectively for all population segments.

Economy Profile of Argentina

OpenAIRE

World Bank Group

2017-01-01

Doing Business 2018 is the 15th in a series of annual reports investigating the regulations that enhance business activity and those that constrain it. This economy profile presents the Doing Business indicators for Argentina. Doing Business presents quantitative indicators on business regulation and the protection of property rights that can be compared across 190 economies; for 2018 Arge...

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

International Nuclear Information System (INIS)

1977-08-01

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

LAS ESPECIES ARGENTINAS DEL GENERO SICYOS (CUCURBITACEAE.

Directory of Open Access Journals (Sweden)

Raúl Martínez Crovetto

1964-01-01

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

Regional safeguards arrangements: The Argentina-Brazil experience

International Nuclear Information System (INIS)

Marzo, M.; Gonzales, H.L.; Iskin, M.C.L.; Vicens, H.

1997-01-01

A Common System of Accounting and Control of Nuclear Material (SCCC) was established by Argentina and Brazil in July 1992. It is a full scope safeguard's system in both countries. The Brazilian-Argentine Agency for Accounting and Control of Nuclear Materials (ABACC) was created to apply the SCCC. The main elements of the SCCC are presented. The main safeguards' procedures are described. A brief discussion of the inspection methodology and its impact for facility operators is performed. The safeguard's implementation from the operator's point of view is commented, taking as example a fuel fabrication plant in Argentina and a uranium enrichment plant in Brazil. (author)

La globalización y la enseñanza de la psicología en Argentina Globalization and education in psychology in Argentina

Directory of Open Access Journals (Sweden)

Hugo Klappenbach

2003-12-01

Full Text Available El trabajo aborda tres cuestiones. En primer lugar, analiza brevemente a la historia de la enseñanza de la psicología en Argentina, subrayando la importancia adquirida por el psicoanálisis en la tradición universitaria psicológica. En segundo lugar, desarrolla algunos de los estudios y algunas de las líneas de debate contemporáneo sobre formación universitaria del psicólogo, comenzando por algunos estudios clásicos en los Estados Unidos y concluyendo en la propuesta de diplomatura en psicología, actualmente en debate en los países miembros de la Unión Europea. En tercer lugar, analiza el impacto generado por la globalización en los procesos de formación del psicólogo en Argentina, especialmente a partir del impacto del llamado Mercosur educativo. En ese marco, se analiza críticamente la situación de los programas de psicología en las universidades argentinas.This paper approaches three subjects. Firstly, it briefly analyzes the history of psychology undergraduate programs of in Argentina, in which psychoanalytical bias is emphasized. Secondly, it reviews some important studies and reports concerning undergraduate programs and professional training in Psychology, beginning with some classical reports in USA, finishing with the proposal of an European Diploma in Psychology, which is now under evaluation in European countries. Thirdly, globalization effects, specially those from educational Mercosur, on teaching of psychology at undergradute programs and professional training in psychology in Argentina are analyzed. In such context, a critical report on psychology undergraduate programs in the country is reviewed.

Allamanda schottii (Apocynaceae: nueva cita para la Flora Argentina

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Julio A. Hurrell

2013-01-01

Full Text Available En este trabajo Allamanda schottii Pohl (Apocynaceae es documentada como nueva cita genérica y específica para la Flora Argentina. La especie fue hallada en la ribera del Paraná, en el norte de la provincia de Corrientes, Argentina. Se incluye su sinonimia, descripción, comentarios sobre su distribución, hábitat, fenología, biología reproductiva, nombres vulgares, usos y observaciones.

Nota sobre el género Imperata (Poaceae, Panicoideae, Sacchareae) en Argentina

OpenAIRE

Peichoto, Myriam Carolina

2017-01-01

En este trabajo se confirma la presencia de Imperata tenuis en Argentina. Se presenta una ilustración, material de referencia y un mapa de su distribución geográfica en el sur de Sudamérica. Se incluye una clave para identificar las especies del género Imperata presentes en la Argentina. This work confirms the presence of Imperata tenuis in Argentina, and includes an illustration, reference material, a map showing its geographic distribution in southern South America, and a key to identi...

Horizontalidad, autogestión y protagonismo en Argentina

OpenAIRE

Marina Sitrin

2010-01-01

Este artículo trata los movimientos sociales autónomos que surgieron después de la crisis económica y la posterior rebelión popular en Argentina en diciembre de 2001. Los movimientos autónomos en la Argentina, como tantos movimientos en el mundo de hoy, son movimientos basados en la creación de nuevas relaciones sociales y comunidades ahora, al mismo tiempo que proyectan nuevas sociedades y las relaciones en y para el futuro. Son movimientos con una concepción diferente del tiempo y el espaci...

Aphanes arvensis (Rosaceae) en el extremo nordeste de la Argentina

OpenAIRE

Gustavo Hildt; Héctor A. Keller

2017-01-01

Se menciona por primera vez para el nordeste argentino a una hierba adventicia en el nuevomundo. La especie es ilustrada mediante fotografías Fil: Hildt, Gustavo. Universidad Nacional de Misiones; Argentina Fil: Keller, Hector Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Botánica del Nordeste (i); Argentina

Capturing latecomer advantages in the adoption of biofuels: The case of Argentina

International Nuclear Information System (INIS)

Mathews, John A.; Goldsztein, Hugo

2009-01-01

Although Argentina came late to the biofuels revolution, a series of measures taken recently at federal and provincial government level have created new opportunities. New federal laws on biofuels promotion have sparked an investment boom. The main activity has been in the biodiesel sector-partly because diesel is the dominant fuel sector in Argentina, and partly because the country had already engineered a soy revolution over the past 15 years, becoming the world's largest exporter of soy oil and soy meal. Biodiesel allows this revolution to be extended-from soy as foodstuff to soy as fuelstock. The biodiesel revolution now underway promises to extend Argentina's latecomer advantages by combining greater scale and lower costs with introduced technical innovations such as genetically modified crops and no-till farming. In this way, Argentina can be seen to be demonstrating the superiority of biofuel production in countries of the South over the conditions obtaining in countries of the North-including superior resources availability, superior energetics and lower costs. Whereas Brazil has demonstrated its superiority in sugarcane-based ethanol, Argentina is about to demonstrate its superiority in soy-based biodiesel

First record in Argentina of Drepanosiphum oregonense Granovsky (Hemiptera: Aphididae) found on maples (Sapindaceae)

OpenAIRE

Ortego, Jaime; Olave, Anabel; Mier Durante, Milagros Pilar

2014-01-01

Se informa del hallazgo del áfido Drepanosiphum oregonense Granovsky (Hemiptera: Aphididae) sobre árboles de Acer pseudoplatanus y A. campestre (Sapindaceae) en Argentina lo que constituye el primer registro de la especie y del género Drepanosiphum Koch en Argentina y el segundo en Sudamérica. The finding in Argentina of the aphid Drepanosiphum oregonense on "maple tree" Acer pseudoplatanus ...

Potential of exchange of electric power between the electric systems of Brazil and Argentina; Potencial de intercambio de energia eletrica entre os sistemas eletricos do Brasil e da Argentina

Energy Technology Data Exchange (ETDEWEB)

Zanette, Andre Luiz [Petroleo Brasileiro S.A. (PETROBRAS), Rio de Janeiro, RJ (Brazil)

2010-07-01

Integration of power generation and transmission systems can provide a better utilization of energy resources and increase systems reliability. Given that Brazilian interconnection with Argentina, which represents the major Brazilian interconnection with neighboring countries, is used basically in winter months or in situations of unfavorable hydrology, this paper aims to demonstrate that power exchange between these two countries can be much higher than currently observed, resulting in greater benefits for producers and consumers of electricity in both countries, and that these benefits can also be obtained through better use of existing and planned interconnections between South American countries. To estimate the potential for power exchange between the electrical systems of Brazil and Argentina, three sets of simulations using the Brazilian Energy Plan (PDE 2010-2019) deck for Newave model, available from EPE, were made. These simulations consider the possibility that: (i) electricity is exported from Brazil to Argentina (II) electricity is imported from Argentina and (III) electricity is exchanged in both directions. The simulation results indicate that, despite rising operational marginal costs, significant amounts of electricity can be exported to Argentina at relatively low prices, depending on hydrological conditions. Moreover, the possibility of electricity imports from Argentina can reduce the operational costs of Brazilian system, as well as minimizing the risk of shortages. This work shows that the interconnections between Brazil and Argentina may be better used to benefit producers and consumers in both countries. Therefore, it is necessary to define an effective contractual and operational model for power trading and electricity transfer between these countries with the objective of promoting stability and mutual trust. Finally, studies to evaluate the potential for electricity exchange between South American countries are specially important

Potential of exchange of electric power between the electric systems of Brazil and Argentina; Potencial de intercambio de energia eletrica entre os sistemas eletricos do Brasil e da Argentina

Energy Technology Data Exchange (ETDEWEB)

Zanette, Andre Luiz [Petroleo Brasileiro S.A. (PETROBRAS), Rio de Janeiro, RJ (Brazil)

2010-07-01

Integration of power generation and transmission systems can provide a better utilization of energy resources and increase systems reliability. Given that Brazilian interconnection with Argentina, which represents the major Brazilian interconnection with neighboring countries, is used basically in winter months or in situations of unfavorable hydrology, this paper aims to demonstrate that power exchange between these two countries can be much higher than currently observed, resulting in greater benefits for producers and consumers of electricity in both countries, and that these benefits can also be obtained through better use of existing and planned interconnections between South American countries. To estimate the potential for power exchange between the electrical systems of Brazil and Argentina, three sets of simulations using the Brazilian Energy Plan (PDE 2010-2019) deck for Newave model, available from EPE, were made. These simulations consider the possibility that: (i) electricity is exported from Brazil to Argentina (II) electricity is imported from Argentina and (III) electricity is exchanged in both directions. The simulation results indicate that, despite rising operational marginal costs, significant amounts of electricity can be exported to Argentina at relatively low prices, depending on hydrological conditions. Moreover, the possibility of electricity imports from Argentina can reduce the operational costs of Brazilian system, as well as minimizing the risk of shortages. This work shows that the interconnections between Brazil and Argentina may be better used to benefit producers and consumers in both countries. Therefore, it is necessary to define an effective contractual and operational model for power trading and electricity transfer between these countries with the objective of promoting stability and mutual trust. Finally, studies to evaluate the potential for electricity exchange between South American countries are specially important

76 FR 51934 - Determination of Pest-Free Areas in Mendoza Province, Argentina; Request for Comments

Science.gov (United States)

2011-08-19

... acknowledged Argentina's history of successful Medfly control efforts, but stated that APHIS should not relax...] Determination of Pest-Free Areas in Mendoza Province, Argentina; Request for Comments AGENCY: Animal and Plant... received a request from the Government of Argentina to recognize additional areas as pest- free areas for...

An evolutionary approach to mania studying Sardinian immigrants to Argentina.

Science.gov (United States)

Carta, Mauro G; Perra, Alessandra; Atzeni, Michela; D'Oca, Silvia; Moro, Maria F; Kurotschka, Peter K; Moro, Daniela; Sancassiani, Federica; Minerba, Luigi; Brasesco, Maria V; Mausel, Gustavo; Nardi, Antonio E; Tondo, Leonardo

2017-01-01

To ascertain lifetime prevalence of positivity to a screening questionnaire for bipolar disorders (BD) in Sardinian immigrants to Argentina and residents of Sardinia and assess whether such positivity affects quality of life (QoL) in either group. Our hypothesis is that screen positivity for BD may be more frequent in immigrants. Observational study. Subjects were randomly selected from the membership lists of associations of Sardinian immigrants in Argentina. A study carried out in Sardinia using the same methodology was used for comparison. The Mood Disorder Questionnaire was used to screen for mania/hypomania and the Short-Form Health Survey-12 to measure QoL. A higher prevalence of manic/hypomanic episodes was found in Sardinian immigrants to Argentina (p immigrants to Argentina and in residents of Sardinia. To the best of our knowledge, this is the first study to show a higher lifetime prevalence of manic/hypomanic episodes in a general-population sample of individuals who migrated to a foreign country. Our results are in agreement with the hypothesis that hyperactive/novelty-seeking features may represent an adaptive substrate in certain conditions of social change.

Progress of Grid technology in Argentina: Lessons learned from EELA

International Nuclear Information System (INIS)

Dova, M. T.; Grunfeld, C.; Monticelli, F.; Tripiana, M.; Veiga, A.; Ambrosi, V.; Barbieri, A.; Diaz, J.; Luengo, M.; Macia, M.; Molinari, L.; Veonosa, P.; Zabaljauregui, M.

2007-01-01

The EELA project aimed to create a collaboration network between Europe and Latin American for training in Grid technologies and the deployment of a pilot Grid infrastructure for e-science applications. Grid computing has emerged as an important new field, and its development in Argentina is particularly important for a number of reasons, such as that Argentina has recently joined the ATLAS collaboration at CERN and the increasing interest in future biomedical applications. The potential of GRID technology is well known, however, its adoption is not a trivial task as it requires significant investment in several areas. In this paper, the achievements and progress in Argentina through close collaboration with EELA are presented. Among these are the deployment of a Grid Certification Authority infrastructure that is a crucial component in the activities of the e-Science community in the country; the deployment, integration and validation of a small local EELA node; installation and running of an analysis ATLAS application on the EELA infrastructure. The experience gained in participating in EELA dissemination events also allowed us to actively promote the GRID and training for its use different target audiences in Argentina and in LA. (Author)

Nuclear Data in Argentina (1992 -1993)

International Nuclear Information System (INIS)

Ricabarra, G. H.

1993-03-01

A progress report of nuclear data research in Argentina is given for the years 1992/1993, including the WIMS nuclear data library update project, and measurements and evaluations of selected neutron induced nuclear reactions. (author)

Nuevas citas de monocotiledóneas adventicias para la Argentina New records of adventitious monocots for Argentina

Directory of Open Access Journals (Sweden)

Julio A. Hurrell

2009-12-01

Full Text Available Este trabajo incluye cinco nuevos registros de monocotiledóneas adventicias para la Argentina: Aloe ciliaris Haw. (Asphodelaceae, Aspidistra elatior Blume (Convallariaceae, Sansevieria trifasciata Prain (Dracaenaceae, Phormium tenax J. R. Forst. & G. Forst. (Hemerocallidaceae y Ornithogalum arabicum L. (Hyacinthaceae, pertenecientes al orden Asparagales. También incluye una evaluación del estado actual de estas especies, en relación al proceso de naturalización: escapadas de cultivo ocasionales, naturalizadas.This paper includes five new records of adventitious monocots for Argentina: Aloe ciliaris Haw. (Asphodelaceae, Aspidistra elatior Blume (Convallariaceae, Sansevieria trifasciata Prain (Dracaenaceae, Phormium tenax J. R. Forst. & G. Forst. (Hemerocallidaceae and Ornithogalum arabicum L. (Hyacinthaceae, belonging to order Asparagales. Also includes an evaluation of its status in the naturalization process: casual alien, naturalized.

QUBIC in Argentina

Science.gov (United States)

García, B.; Harari, D.; Etchegoyen, A.; Medina, M. C.; Romero, G. E.; Qubic Collaboration

2017-10-01

QUBIC (QU Bolometric Interferometer for Cosmology) is an experimental cosmology project to measure the modes in the polarization of the cosmic background radiation (CBR), the fossil relic that reveals the properties at the Universe 380,000 years after the Planck Era. Discovery of the CBR in 1964 and measurement of tiny temperature anisotropies in 1992 were major breakthroughs in our understanding of the Universe. The next challenge is to measure the polarization of the CBR accurately enough to detect modes that would reveal the existence of primordial gravitational waves produced in the first stages of the Planck Era and probe inflation theory, that assumes an accelerated expansion during the first seconds. The mode signal is however extremely weak and its measurement requires complex instruments. The QUBIC collaboration has developed the concept of interferometric bolometry, that brings together the sensitivity of bolometric detectors with the control of systematic effects provided by interferometry. QUBIC is an international collaboration involving several universities and laboratories in France, Italy, United Kingdom and USA. Recently, Argentina has suggested Alto Chorrillo (Salta), as candidate site for the installation of the experiment, next to the LLAMA site. Here we describe the scientific objectives and the main features of the experiment and we detail the process through which the international collaboration decided to install in Argentina its first module as well as the challenges for our country in this project.

The Influence of Positivism in the Nineteenth Century Astronomy in Argentina

Science.gov (United States)

Santilli, Haydee; Cornejo, Jorge Norberto

2013-01-01

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

Horticulture in Argentina: a productive alternative with great potential

Directory of Open Access Journals (Sweden)

Ana Maria Castagnino

2011-12-01

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

Sistema de salud de Argentina The health system of Argentina

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Mariana Belló

2011-01-01

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

La migracion internacional en Argentina hacia 2010

Directory of Open Access Journals (Sweden)

Laura Calvelo

Full Text Available El artículo presenta los principales lineamientos de la migración internacional en Argentina hacia el año 2010, con detenimiento en el período 2000-2010. En el caso de la inmigración no nativa se basa en información de los censos nacionales de población 2001 y 2010. En el caso de la migración internacional de la población nativa de Argentina el análisis se sustenta en información de censos extranjeros hasta la ronda 2000 y en otras fuentes de datos de los principales países de destino hasta 2010 (Estados Unidos y España.

The genera Boiruna and Clelia (serpentes: pseudoboini in Paraguay and Argentina

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Norman J. Scott Jr.

2006-01-01

Full Text Available Snakes of the pseudoboine genera Clelia, which is probably polyphyletic, and Boiruna are distributed from southern Argentina, southern Brazil, and Uruguay northwards into central México. Six members occur in Paraguay and Argentina: B. maculata, Clelia bicolor, C. clelia, C. plumbea, C. quimi, and C. rustica. Historically, there has been taxonomic confusion among the larger species (B. maculata, C. clelia, C. plumbea, and C. rustica and between the small species (C. bicolor and C. quimi. All of the species except C. rustica have distinct ontogenetic color changes. Species can be distinguished on the bases of size, color, hemipenial spines, and loreal, supralabial, and ventral scale counts. Much of the morphological evolutionary differentiation in Boiruna and Clelia seems to have taken place in the snout region, as evidenced by the differing proportions of the scales of the loreal region. Boiruna maculata has the widest ecological amplitude. It is broadly distributed in most vegetation types north of the 38th parallel in central Argentina, being absent only from the deltaic sediments of Buenos Aires Province, Argentina and the broad valleys and rolling hills of eastern Paraguay. Clelia bicolor is most common in the Paraguay and Paraná river valleys, with a few records from the Andean foothills in northern Argentina. Clelia clelia is distributed along the Río Paraguay and the lower Paraná, and is also found throughout much of eastern Paraguay. Clelia plumbea is apparently parapatric with C. clelia along the Río Paraná in southeastern Paraguay and Misiones Province, Argentina. The ranges of C. quimi to the east and C. bicolor in the west about in this same region without apparent overlap. There are no vouchered records of Clelia rustica from Paraguay. In Argentina, it is a species of temperate climates; north of the 30th parallel, it occurs in the Andean foothills and the wet forests of Misiones Province. Southwards, it is widely distributed

Influence of osmotic pre-treatment on convective drying of yellow pitahaya

Directory of Open Access Journals (Sweden)

Alfredo Ayala-Aponte

2014-01-01

Full Text Available Cilindros de pitahayas fueron osmóticamente deshidratados en sa carosa 55 % (p/p durante 45 minutos como un pre-tratamiento al secado convectivo. El secado por aire caliente se realizó a 50, 60 y 70ºC. Se comparó la cinética de secado de las muestras osmodeshidratadas con las muestras no tratadas. Se determinaron los coeficientes de difusión efectiva. Los valores de la energ ía de activación fueron 29.56 y 16.93 kJ mol -1 para las muestras pre-tratadas y para las no tratadas, respect ivamente. Se aplicó modelado matemático para simular las curvas experimentales de secado de las pitahayas. Los resultados indicaron que el modelo de Weibul l podría ser usado para simular los datos de secado experimental. Además , el encogimiento de las muestras debido a cambios en el volume n fue más pronunciado en las muestras sin pretratar.

WTO: US and Argentina settle dispute over patents and data protection.

Science.gov (United States)

Elliott, Richard

2002-12-01

In May 2000, supplementing an earlier complaint filed in May 1999, the US filed a complaint against Argentina, alleging that its patent laws violate the World Trade Organization's Agreement on Trade-Related Aspects of Intellectual Property (the TRIPS Agreement). The gist of the US complaint was that Argentina's law failed to provide: (1) adequate protection against "unfair" commercial use of undisclosed test data submitted in order to get market approval of pharmaceutical products; (2) certain safeguards for compulsory licences on an invention granted on the basis of inadequate working by the patent holder; and (3) adequate measures to prevent infringements of patent rights. The US also alleged that Argentina denies certain exclusive rights of patent holders, such as the exclusive right to import the patented product into the country. At the end of May 2002, the US and Argentina notified the WTO that they had reached a "mutually agreed solution," without prejudice to their respective rights and obligations under WTO agreements, and the US has withdrawn its complaint.

Breve historia de los refugiados en Argentina durante el siglo XX

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María Paula Cicogna

2009-12-01

Full Text Available Argentina ha sostenido, desde la letra escrita de la Constitución Nacional, ser un país receptor de inmigración, aunque en los hechos ha demostrado lo contrario. A pesar de ello, durante el siglo XX se instalaron grupos de exiliados, solicitantes de refugio y refugiados de las más diversas nacionalidades. Este artículo mostrará los contingentes que conformaron el mapa multicultural de la Argentina a partir del desarrollo de una cronología creada a en base a los trabajos de investigación que analizaron el establecimiento de las diversas comunidades._________________ABSTRACT:According to National Constitution Argentina has been an open doors country to immigration, although it has demonstrated the opposite. In spite of it, during XX century groups of exiles, asylum seekers and refugees of different nationalities settled in the country. Based in a chronology created from varied researches which analyzed the establishment of the diverse communities this article will show the groups that shape the multicultural map of Argentina.

NREL technical assistance to Argentina

Energy Technology Data Exchange (ETDEWEB)

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

1997-12-01

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

RERTR activities in Argentina

International Nuclear Information System (INIS)

Adelfang, P.; Alvarez, L.; Pasqualini, E.

2002-01-01

The Atomic Energy Commission of Argentina has been an active participant of the RERTR program since 1978. An important milestone of the Argentinean RERTR program was the development and manufacturing at industrial scale of U 3 O 8 dispersed fuel and its subsequent application to the conversion of the RA-3 reactor core to LEU fuel. More recently, our activities were focused on the development of U 3 Si 2 fuel with a density of 4.8 gU/cm 3 and the improvement of the manufacturing process of this type of fuel. The program to qualify CNEA as a supplier U 3 Si 2 dispersed fuels is scheduled to finalize by mid 2003. To hasten this program the main research reactor of Argentina, the RA3, raised its power from 5 MW to 8 Mw in October this year. This is an intermediate step in the program to increase RA-3 power to 10 MW Currently, one of the main objectives is to develop and qualify the technology for the production of high-density LEU fuel elements using U-Mo alloy. An original way to produce U-Mo powder (the HMD process) was developed and its being upgraded to plant scale production. Another significant progress was the development of LEU targets for the production of 99 Mo, in the form of miniplates prepared with dispersed LEU U-Al x . The shipment to USA of 207 MTR spent fuels containing US origin highly enriched uranium, successfully carried out in the end of 2000, is another remarkable achievement of the Argentinean RERTR program. This activity was carried out in the framework of the United States Foreign Research Reactor Spent Nuclear Fuel Acceptance Program. The fuels were fabricated in Argentina and used in the RA-3 reactor from 1968 to 1987. The inventory of the shipped HEU spent fuel consisted in 166 standard assemblies and 41 control assemblies. (author)

Relative Militarization and Its Impact on Public Policy Budgetary Shifts in Argentina, 1963-1982

Science.gov (United States)

1988-07-01

Until such a time, the reader is advised to consult the extensive literature on the subject (e.g. Cavarozzi, 1983; Historia Politica Argentina , 1985...34 Desarrollo Econ6mico, V.19. (1981), "Teoria y practica del liberalismo. Politica antiinfla- cionaria y apertura economica en la Argentina 1976-1981...American Political Economy. Boulder: Westview Press. Historia Politica Argentina , 1942-1982. (1985) Buenos Aires: Editorial del Belgrano. 48 Hughes, S.W

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

Science.gov (United States)

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

2016-01-01

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

A new species of Tullbergia (Collembola, Tullbergiidae) from Buenos Aires, Argentina

Science.gov (United States)

Palacios-Vargas, José G.; Martínez, Ana E. Salazar

2014-01-01

Abstract A new species of Tullbergia from Argentina is described and illustrated; it is differentiated from Tullbergia paranensis by the number of vesicles of postantennal organ, pseudocelli shape and its formulae and the number of dorsal sensilla on Ant. IV. In addition a key for the identification of the members of the family from Argentina is included. PMID:25061344

Nota sobre EL GÉNERO Imperata (Poaceae, Panicoideae, Sacchareae en Argentina

Directory of Open Access Journals (Sweden)

Myriam C. Peichoto

2013-01-01

Full Text Available En este trabajo se confirma la presencia de Imperata tenuis en Argentina. Se presenta una ilustración, material de referencia y un mapa de su distribución geográfica en el sur de Sudamérica. Se incluye una clave para identificar las especies del género Imperata presentes en la Argentina.

State of the art of municipal solid wastes and hazard wastes disposal in Argentina; Diagnostico de la situacion del manejo de los residuos solidos municipales y peligrosos en Argentina

Energy Technology Data Exchange (ETDEWEB)

Savino, A.A.

1997-12-31

The author analyzes the up to date situation of Argentina related to Municipal solid Waste management after the political and economic challenges suffered by Argentina. The author concludes that this country needs more waste treatment plants and more investments for environmental management. (Author) 15 refs.

Forensic population data for 20 STR loci in Argentina

OpenAIRE

Borosky, Alicia; Toscanini, Ulises; Gómez, Andrea; Parolin, María Laura; Basso, Nestor Guillermo; Vullo, Carlos

2017-01-01

In order to provide useful information of forensic interest for the new markers included in the PowerPlex1 21 System (Promega Corp, USA), namely D1S1656, D6S1043 and D12S391, a population study was conducted in a sample of 907 unrelated healthy individuals from Argentina. Samples were randomly chosen from routine paternity testing. Blood samples or buccal swabs were collected after informed consent, taken from individuals of different urban populations from 7 provinces of Argentina: 464 indiv...

A new genus of Platynini (Coleoptera: Carabidae) from Argentina

OpenAIRE

ROIG-JUÑENT, Sergio

2003-01-01

Los Platynini constituyen un grupo de carábidos distribuidos ampliamente en América del Sur, existiendo la mayor diversidad de especies en las regiones tropicales de altura de Los Andes. En la Argentina y Chile, la mayoría de las especies de Platynini se hallan distribuidas en áreas extracordilleranas, conociéndose pocos datos para la región Andina. A partir de recolecciones realizadas en la Precordillera y Cordillera de los Andes en Mendoza (Argentina), se hallaron ejemplares pertenecientes ...

Tribulations and achievements: the early history of Olympism in Argentina.

Science.gov (United States)

Torres, C R

2001-01-01

By the end of the nineteenth century, modern sport had enchanted the people of Argentina. At that time the nation enjoyed a remarkable degree of economic prosperity and embarked on increasing political democratization. These circumstances, along with the fact that the nation was represented from the beginning, in 1894, on the International Olympic Committee seemed to favour Argentina as the spearhead of the diffusion of Olympism throughout South America. However, the country only enjoyed its first official Olympic participation in the Paris Games of 1924 - a few months after the establishment of the Argentine Olympic Committee. This essay explores the reception and diffusion of Olympism in Argentina. It reveals a process of gradual adoption including conflicting views on the relationship between the state and sport, several attempts at institutionalization, international misunderstandings and the role of politics and class.

Increasing Capacity for Environmental Engineering in Salta, Argentina

Science.gov (United States)

Rajal, Verónica B.; Cid, Alicia G.; Cruz, Mercedes C.; Poma, Hugo R.; Cacciabue, Dolores Gutierrez; Romano, Neli; Moraga, Norma B.; Last, Jerold A.

2012-01-01

Background The Fogarty International Center (FIC) of the United States National Institutes of Health includes the International Training and Research in Environmental and Occupational Health (ITREOH) Program. The “International Training Program in Environmental Toxicology and Public Health” Center, funded in 2002 is based at the University of California, Davis, and is part of the ITREOH group of Centers. It has major efforts focused at the public universities in Montevideo, Uruguay, and Salta, Argentina. Results Training and research efforts in Salta begun in 2005 in the College of Engineering. A donated used real-time PCR machine was the starting point and the initial FIC support was instrumental to face other problems including physical space, research projects and grants, trainees, training, networking, and distractions/opportunities in order to develop local capacities in Environmental Engineering using modern methodology. After six years of successful work, the Salta center has become a reference Center in the field, and is still growing and consolidating. Conclusions This program has had a significant impact locally and regionally. The model used in Argentina could be easily adapted to other fields or types of projects in Argentina and in other developing countries. PMID:22467330

Increasing capacity for environmental engineering in Salta, Argentina.

Science.gov (United States)

Rajal, Verónica B; Cid, Alicia G; Cruz, Mercedes C; Poma, Hugo R; Cacciabue, Dolores Gutierrez; Romano, Neli; Moraga, Norma B; Last, Jerold A

2013-01-01

The Fogarty International Center (FIC) of the United States National Institutes of Health includes the International Training and Research in Environmental and Occupational Health (ITREOH) Program. The "International Training Program in Environmental Toxicology and Public Health" Center, funded in 2002 is based at the University of California, Davis, and is part of the ITREOH group of Centers. It has major efforts focused at the public universities in Montevideo, Uruguay, and Salta, Argentina. Training and research efforts in Salta begun in 2005 in the College of Engineering. A donated used real-time PCR machine was the starting point and the initial FIC support was instrumental to face other problems including physical space, research projects and grants, trainees, training, networking, and distractions/opportunities in order to develop local capacities in Environmental Engineering using modern methodology. After 6 years of successful work, the Salta center has become a reference Center in the field, and is still growing and consolidating. This program has had a significant impact locally and regionally. The model used in Argentina could be easily adapted to other fields or types of projects in Argentina and in other developing countries. Copyright © 2012 Wiley Periodicals, Inc.

Greenstone: uso actual en Argentina

Directory of Open Access Journals (Sweden)

Marcela Fushimi

2018-04-01

Full Text Available Este trabajo presenta las características e historia del software para crear y gestionar bibliotecas digitales Greenstone, desarrollado inicialmente por la Universidad de Waikato, Nueva Zelandia en 1997. En primer lugar, se describe la comunidad de usuarios a nivel global, focalizando en el uso actual que el software ha alcanzado en Argentina: la cantidad de implementaciones disponibles, su evolución, el tipo, tamaño y variedad de los desarrollos existentes, así como su aplicación a la gestión de repositorios digitales de ciencia y tecnología en el ámbito de las instituciones científicas, tecnológicas y de educación superior en Argentina. En segundo lugar, se detallan las acciones llevadas a cabo a partir de la creación del Centro Nacional de Promoción de Greenstone en Argentina en 2009. Datos recabados en encuestas realizadas permitieron observar que las razones predominantes para elegir esta plataforma fueron, entre otras, su facilidad de instalación y configuración, su bajo nivel de requerimiento tecnológico, la generalizada escasez de recursos humanos dedicados a esta actividad, y la complejidad que presentaban los softwares alternativos existentes en ese momento. A lo largo de estos 8 años, tanto los repositorios digitales como los sistemas que los soportan evolucionaron drásticamente, modificando el escenario actual. Paralelamente, en 2016 la nueva versión mayor de Greenstone implementó una reingeniería completa del software para su adaptación a las tecnologías en uso: XML, XSLT, Web-services y Java. Como consecuencia de esto, la comunidad de desarrollo local se plantea nuevos desafíos para la migración de las bibliotecas digitales y repositorios implementados con versiones anteriores.

Experimental Search for Solar Axions via Coherent Primakoff Conversion in a Germanium Spectrometer

CERN Document Server

Avignone, F T; Brodzinski, R; Collar, J I; Creswick, R J; Di Gregorio, D E; Farach, H A; Gattone, A O; Guérard, C K; Hasenbalg, F; Huck, H; Miley, H S; Morales, A; Morales, J; Nussinov, S; De Solorzano, A O; Reeves, J H; Villar, J; Zioutas, Konstantin

1998-01-01

Results are reported of an experimental search for the unique, rapidly varying temporal pattern of solar axions coherently converting into photons via the Primakoff effect in a single crystal germanium detector. This conversion is predicted when axions are incident at a Bragg angle with a crystalline plane. The analysis of approximately 1.94 kg.yr of data from the 1 kg DEMOS detector in Sierra Grande, Argentina, yields a new laboratory bound on axion-photon coupling of $g_{a\\gamma \\gamma} < 2.7\\cdot 10^{-9}$ GeV$^{-1}$, independent of axion mass up to ~ 1 keV.

Visitantes florales diurnos del girasol (Helianthus annuus, Asterales: Asteraceae en la Argentina Diurnal floral visitors of sunflower (Helianthus annuus, Asterales: Asteraceae in Argentina

Directory of Open Access Journals (Sweden)

Juan P. Torretta

2010-06-01

Full Text Available El girasol (Helianthus annuus L. es un importante cultivo oleaginoso en la Argentina. Durante tres campañas agrícolas, se determinaron la diversidad y la abundancia del elenco de los visitantes florales diurnos de capítulos de girasol, en ocho sitios que cubren gran parte del área cultivada en Argentina. Setenta y seis morfo-especies de visitantes florales, pertenecientes a ocho órdenes, fueron capturados sobre capítulos de este cultivo. El principal orden fue Hymenoptera, con 37 especies o morfoespecies, de las cuales 32 fueron abejas (Apoidea. Las familias de abejas más representadas fueron Apidae (13, Megachilidae (11 y Halictidae (7. La abeja doméstica (Apis mellifera L. realizó el 93% de las visitas. La composición del elenco de visitantes no mostró un patrón de variación identificable a lo largo del día, ni con respecto a la distancia al borde del cultivo, pero varió entre sitios de muestreo. Se concluye que la abeja doméstica es el principal polinizador del girasol en la Argentina, aunque varias especies nativas de abejas (Melissodes tintinnans (Holmberg, M. rufithorax Brèthes, Melissoptila tandilensis Holmberg, y Megachile spp. podrían ser consideradas como potenciales polinizadores del cultivo.Sunflower (Helianthus annuus L. is an important oilseed crop in Argentina. During three agricultural years, the diversity and abundance of diurnal floral visitors of sunflower heads were determined in eight sites spanning much of this crop's cultivation area in Argentina. Seventysix morpho-species of floral visitors, belonging to eight orders, were captured on sunflower. The principal order was Hymenoptera, with 37 species or morpho-species, of which 32 were bees (Apoidea. The most represented bee families were Apidae (13, Megachilidae (11 and Halictidae (7. The domestic bee (Apis mellifera L. accounted for 93% of the visits. Floral visitor composition did not show an identifiable variation pattern either throughout the day or

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

NARCIS (Netherlands)

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

2007-01-01

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

Redefining the public sphere: self-managed schools in Argentina

OpenAIRE

Feldfeber, Myriam

2003-01-01

El Proyecto de las Escuelas Experimentales o Autogestionadas de la Provincia de San Luis adquiere sentido en el marco de la denominada Transformación Educativa y de las políticas desarrolladas en las últimas décadas en Argentina, que, al igual que en gran parte de los países latinoamericanos, han estado orientadas por discursos y prácticas tendientes a legitimar un nuevo modelo económico, social, político, cultural y educativo. La reforma educativa argentina de la década del '90 puede analiza...

First record of Vespula vulgaris (Hymenoptera: Vespidae) in Argentina

OpenAIRE

Masciocchi, Maité; Beggs, Jacqueline R.; Carpenter, James M.; Corley, Juan Carlos

2016-01-01

Vespula vulgaris (Linnaeus) es un véspido social nativo de la región Holártica. En este trabajo reportamos la primera detección de esta especie en Argentina. Obreras de esta avispa fueron capturadas cerca de la ciudad de San Carlos de Bariloche (Argentina) en Febrero de 2010, mientras se tomaban muestras de otra avispa invasora, Vespula germanica (Fabricius) o chaqueta amarilla, de morfología externa y hábitos similares a la anteriormente mencionada. Además, detallamos algunos caracteres de i...

Cultivos transgénicos en Argentina : mitos y realidades

OpenAIRE

Cantamutto, Miguel; Poverene, Mónica

2003-01-01

Cantamutto, M., Poverene, M. (2003). Cultivos transgénicos en Argentina: mitos y realidades. Redes, 10(20), 171-181. La producción creciente de cultivos transgénicos en la Argentina es observada con preocupación por la población debido a que aparecen cada vez más voces planteando dudas y amenazas acerca de las consecuencias del uso de esta tecnología, que incluso se atribuye a oscuras manipulaciones políticas. ¿Tienen fundamento esos conceptos? ¿A qué aspectos del uso de organismos genétic...

Identidad y distribución geográfica de Stemodia durantifolia (Plantaginaceae en la Argentina

Directory of Open Access Journals (Sweden)

María de las Mercedes Sosa

2012-12-01

Full Text Available Stemodia durantifolia es una especie con dos variedades que crece desde California hasta Chile. La variedad típica se ha citado en trabajos previos para la Argentina y la otra variedad, chilensis fue mencionada hasta el momento para Chile. En este trabajo se descarta la presencia de la variedad típica en el país, se da a conocer su área de distribución y se cita por primera vez a la variedad chilensis para la Argentina. Se describen e ilustran las dos variedades, se incluye un mapa de distribución y una clave para separarla de las restantes especies que crecen en Argentina.Identity and geographical distribution of Stemodia durantifolia (Plantaginaceae in Argentina. The typical variety has been cited in previous studies for Argentina, and the other variety, chilensis, was mentioned so far in Chile. This work rules out the typical variety in the country, describes its geographical distribution and cites for the first time the var. chilensis for Argentina. A description, illustration and a map of distribution of the species with these two varieties are provided, as well as a key to distinguish the other Argentinean species.

Proyectos de energía renovable: su formulación y evaluación económico financiera y situación actual en Argentina

OpenAIRE

Pendón, Manuela Mercedes; Williams, Eduardo A.; Crespi, Gabriel; Cibeira, Natalia; Granada, Maite; Filippetti, Belén; Castellazzi, Franco; Couselo, Romina

2015-01-01

Los proyectos de energía renovable presentan características particulares, desde el punto de vista de su formulación y evaluación económico – financiera, que resultan importantes conocer y analizar en pos de tomar acertadas decisiones de inversión. En Argentina, la ley 26.190 es el principal instrumento vigente en relación a la promoción de fuentes renovables de energía: eólica, solar, mareomotriz, hidráulica (< 30 MW), biomasa, gases de vertedero, gases de plantas de depuración y biogás. Est...

The multiple applications of the nuclear techniques in Argentina; Las multiples aplicaciones de la tecnologia nuclear en Argentina

Energy Technology Data Exchange (ETDEWEB)

Manzini, Alberto C [Comision Nacional de Energia Atomica, Buenos Aires (Argentina). Programa de Radioisotopos y Aplicaciones

2001-07-01

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

Acute intermittent porphyria in Argentina: an update.

Science.gov (United States)

Cerbino, Gabriela Nora; Gerez, Esther Noemí; Varela, Laura Sabina; Melito, Viviana Alicia; Parera, Victoria Estela; Batlle, Alcira; Rossetti, María Victoria

2015-01-01

Porphyrias are a group of metabolic diseases that arise from deficiencies in the heme biosynthetic pathway. A partial deficiency in hydroxymethylbilane synthase (HMBS) produces a hepatic disorder named Acute Intermittent Porphyria (AIP); the acute porphyria is more frequent in Argentina. In this paper we review the results obtained for 101 Argentinean AIP families and 6 AIP families from foreign neighbour countries studied at molecular level at Centro de Investigaciones sobre Porfirinas y Porfirias (CIPYP). Thirty-five different mutations were found, of which 14 were described for the first time in our population. The most prevalent type of mutations was the missense mutations (43%) followed by splice defects (26%) and small deletions (20%). An odd case of a double heterozygous presentation of AIP in a foreign family from Paraguay is discussed. Moreover, it can be noted that 38 new families were found carrying the most frequent mutation in Argentina (p.G111R), increasing to 55.66% the prevalence of this genetic change in our population and adding further support to our previous hypothesis of a founder effect for this mutation in Argentina. Identification of patients with an overt AIP is important because treatment depends on an accurate diagnosis, but more critical is the identification of asymptomatic relatives to avoid acute attacks which may progress to death.

Population structure in Argentina.

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Marina Muzzio

Full Text Available We analyzed 391 samples from 12 Argentinian populations from the Center-West, East and North-West regions with the Illumina Human Exome Beadchip v1.0 (HumanExome-12v1-A. We did Principal Components analysis to infer patterns of populational divergence and migrations. We identified proportions and patterns of European, African and Native American ancestry and found a correlation between distance to Buenos Aires and proportion of Native American ancestry, where the highest proportion corresponds to the Northernmost populations, which is also the furthest from the Argentinian capital. Most of the European sources are from a South European origin, matching historical records, and we see two different Native American components, one that spreads all over Argentina and another specifically Andean. The highest percentages of African ancestry were in the Center West of Argentina, where the old trade routes took the slaves from Buenos Aires to Chile and Peru. Subcontinentaly, sources of this African component are represented by both West Africa and groups influenced by the Bantu expansion, the second slightly higher than the first, unlike North America and the Caribbean, where the main source is West Africa. This is reasonable, considering that a large proportion of the ships arriving at the Southern Hemisphere came from Mozambique, Loango and Angola.

Case study - Argentina

International Nuclear Information System (INIS)

Diaz, E.

1986-01-01

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

[The demographic and occupational characteristics of Italian migrants to Argentina, 1880-1930].

Science.gov (United States)

Cacopardo, M C; Moreno, J L

1984-09-01

"This essay studies...the demographic and socio-professional characteristics of the Italian emigrants in Argentina during the period 1880-1930. Besides a reconstruction of the demographic variables (age, sex, mortality, and fertility) in the historical series, the essay also depicts the professional profile of the Italians in Argentina...." (summary in ENG, FRE) excerpt

Psychotherapy in Argentina: a clinical case from an integrative perspective.

Science.gov (United States)

Gómez, Beatriz

2007-08-01

The article describes psychotherapy practice in Argentina. It outlines the main features of training and regulation of clinical psychologists. A brief description of the main treatment approaches and the major current challenges is presented. Subsequently it delineates the probable treatment locations and options for a 30-year-old woman, Mrs. A, seeking psychological help in Argentina. The case is then considered from an integrative perspective starting with the intake process, which includes a comprehensive pretreatment assessment followed by the treatment plan. Its course is described as composed of four stages: (1) psychoeducational initial intervention, (2) psychotherapy for symptom alleviation, (3) marital treatment, and (4) psychoeducational final intervention. Posttreatment evaluation and possible outcome and prognosis are presented, as well as factors that might prevent improvement. The article ends with a hopeful view of the future role of psychotherapy in Argentina. (c) 2007 Wiley Periodicals, Inc.

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

Directory of Open Access Journals (Sweden)

Carlos R. Etulain

2007-05-01

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

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

Directory of Open Access Journals (Sweden)

Mario Rapoport

2009-06-01

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

EFECTO DE LA TEMPERATURA DE SECADO SOBRE EL GRADO Y LA VARIABILIDAD ESPACIAL DE LA REPELENCIA AL AGUA EN ANDISOLES DE ANTIOQUIA, COLOMBIA DRYING TEMPERATURE, PERSISTENCE AND SPATIAL VARIABILITY OF WATER REPELLENCY IN ANDISOLS OF ANTIOQUIA, COLOMBIA

Directory of Open Access Journals (Sweden)

Daniel Francisco Jaramillo Jaramillo

2007-12-01

Full Text Available En la cuenca hidrográfica de la quebrada Piedras Blancas, Oriente Antioqueño - Colombia, se ubicaron dos sitios con diferente cobertura vegetal: uno con una plantación de Pinus patula (pino y el otro, con cobertura natural. En cada sitio se demarcaron dos transectos con diferente dirección: uno N-S y el otro E-O. Sobre cada transecto se hizo un muestreo intensivo del suelo, a cuatro profundidades y en dos épocas diferentes: una seca y otra húmeda, para evaluar la persistencia de la repelencia al agua real y la respuesta de la repelencia al agua al secado de las muestras a diferentes temperaturas en ambas coberturas, épocas y direcciones. La evaluación de la persistencia se hizo con el método WDPT (Water Drop Penetration Time en condiciones de campo y en suelos secados a temperaturas de 15, 20, 25, 30, 35 y 105°C. Se observó que al incrementar la temperatura de secado, se incrementó la repelencia al agua y el volumen de suelo afectado por la hidrofobicidad. Esta situación, aunque se presenta en ambas coberturas, ocurre con mayor intensidad en los suelos ubicados bajo plantaciones de Pinus patula. Se encontró una anisotropía marcada en la repelencia al agua, la cual presentó una tendencia general a desarrollar mayor grado de hidrofobicidad en los transectos ubicados en dirección E-O. En todos los transectos estudiados se detectó una amplia variabilidad espacial, de rango corto, en la repelencia al agua, así como una distribución en parches del fenómeno y la generación de vías de flujo preferencial para la entrada y circulación de agua en el suelo.In Piedras Blancas watershed, Oriente Antioqueño - Colombia , two sites with different vegetative cover were located: one with a plantation of Pinus patula (pine and the other one with natural covering. In each site two transects with different direction were defined: one N-S and the other one E-O. On each transect an intensive sampling of soil was made to four depths and in two

Ricardo Dyrgalla (1910-1970), pioneer of rocket development in Argentina

Science.gov (United States)

de León, Pablo

2009-12-01

One of the most important developers of liquid propellant rocket engines in Argentina was Polish-born Ricardo Dyrgalla. Dyrgalla immigrated to Argentina from the United Kingdom in 1946, where he had been studying German weapons development at the end of the Second World War. A trained pilot and aeronautical engineer, he understood the intricacies of rocket propulsion and was eager to find practical applications to his recently gained knowledge. Dyrgalla arrived in Argentina during Juan Perón's first presidency, a time when technicians from all over Europe were being recruited to work in various projects for the recently created Argentine Air Force. Shortly after immigrating, Dyrgalla proposed to develop an advanced air-launched weapon, the Tábano, based on a rocket engine of his design, the AN-1. After a successful development program, the Tábano was tested between 1949 and 1951; however, the project was canceled by the government shortly after. Today, the AN-1 rocket engine is recognized as the first liquid propellant rocket to be developed in South America. Besides the AN-1, Dyrgalla also developed several other rockets systems in Argentina, including the PROSON, a solid-propellant rocket launcher developed by the Argentine Institute of Science and Technology for the Armed Forces (CITEFA). In the late 1960s, Dyrgalla and his family relocated to Brazil due mostly to the lack of continuation of rocket development in Argentina. There, he worked for the Institute of Aerospace Technology (ITA) until his untimely death in 1970. Ricardo Dyrgalla deserves to be recognized among the world's rocket pioneers and his contribution to the science and engineering of rocketry deserves a special place in the history of South America's rocketry and space flight advocacy programs.

Coleópteros acuáticos de lagunas situadas en el noroeste de la provincia de Corrientes, Argentina Aquatic Coleoptera from ponds in the northwest of Corrientes Province, Argentina

Directory of Open Access Journals (Sweden)

María C. Gomez Lutz

2012-06-01

Full Text Available El objetivo de este estudio es contribuir al conocimiento de la biodiversidad de coleópteros acuáticos del NE argentino. Los sitios de muestreo corresponden a dos lagunas permanentes ubicadas en el departamento Capital de la provincia de Corrientes, Argentina. Los muestreos fueron realizados desde octubre de 2010 a marzo de 2011. En total, 107 especies de coleópteros, incluidas en 40 géneros y ocho familias fueron registradas: Haliplidae, Dytiscidae, Noteridae, Dryopidae, Hydrochidae, Hydrophilidae, Limnichidae y Scirtidae. La especie Berosus hamatus Knisch es un nuevo registro para la Argentina. Dos familias (Haliplidae y Dryopidae, cuatro géneros (Haliplus Latreille; Pelonomus Erichson, Onopelmus Spangler, Phaenonotum Sharp y 14 especies son citados por primera vez para la provincia de Corrientes.This study aims to improve the knowledge of aquatic Coleoptera biodiversity in northeastern Argentina. The sampling sites correspond to two permanent ponds located in the department Capital of Corrientes Province, Argentina. The samples were collected between October 2010 and March 2011. A total of 107 species of beetles, including 40 genera and 8 families were recorded: Haliplidae, Dytiscidae, Noteridae, Dryopidae, Hydrochidae, Hydrophilidae, Limnichidae and Scirtidae. Berosus hamatus Knisch is a new record for Argentina. Two families (Haliplidae and Dryopidae, four genera (Haliplus Latreille; Pelonomus Erichson, Onopelmus Spangler, Phaenonotum Sharp and 14 species are cited for the first time for Corrientes Province.

Las negociaciones para el acuerdo cinematográfico de 1948 entre Argentina y España (1939-1948 / The Film Agreement Negotiations: Argentina and Spain (1939-1948

Directory of Open Access Journals (Sweden)

Emeterio Díez Puertas

2016-08-01

Full Text Available La política expansionista del cine argentino y, desde 1942, razones de supervivencia ante el acoso de Hollywood empujan a la Asociación de Productores de Películas Argentinas (APPA a presionar al gobierno español para que firme un acuerdo cinematográfico. Este se rubrica en1948, tras casi diez años de tensas negociaciones. Pero los artículos del acuerdo, más que responder a los deseos de la APPA, reflejan los intereses y la hermandad alcanzada por el franquismo y el peronismo.Palabras clave: España, Argentina, comercio cinematográfico, Asociación de Productores de Películas Argentinas.AbstractThe expansionist policy of Argentine cinema and the power of Hollywood's entertainment industry since 1942, push the Argentinean Film Producers Association (APPA to put pressure on the Spanish government to sign a film agreement. This was signed in 1948, after almost ten years of tense negotiations. However, the articles of the agreement, rather than responding to the wishes of the APPA, reflect the treaty of friendship between the Franco regime and the Peronism.Keywords: Spain, Argentina, Movie Trade, Argentinean Film Producers Association.

La llegada de Gramsci a la Argentina: una relectura sobre Héctor P. Agosti-Gramsci’s Influence in Argentina: a New Reading of the Work of Héctor P. Agosti

Directory of Open Access Journals (Sweden)

Alexia Massholder

2011-12-01

Full Text Available With few exceptions, the impact of the work of Antonio Gramsci in Argentina is generally associated with the so called “Argentinian gramscians”, many of whom met around the journal Pasado y Presente, headed by José Aricó, without considering Gramsci’s earlier influence. However, it is often forgotten that the first introduction of Gramsci to Argentina was by the hand of Héctor P. Agosti. Agosti influenced many young intellectuals who subsequently congregated around Aricó. Beyond the observations made in this article regarding Agosti’s detractors, the aim here is to contribute to the diffusion, and presentation to the public of the thought of one of the most remarkable intellectuals that have arisen in the Communist Party of Argentina. This article also delves into relatively unexamined connections between the works of Agosti and Grasmci, highlighting the role played by the former in introducing the works of this Italian intellectual into Argentina during that period.

Un género nuevo de Platynini (Coleoptera: Carabidae de la Argentina A new genus of Platynini (Coleoptera: Carabidae from Argentina

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Sergio ROIG-JUÑENT

2003-07-01

Full Text Available Los Platynini constituyen un grupo de carábidos distribuidos ampliamente en América del Sur, existiendo la mayor diversidad de especies en las regiones tropicales de altura de Los Andes. En la Argentina y Chile, la mayoría de las especies de Platynini se hallan distribuidas en áreas extracordilleranas, conociéndose pocos datos para la región Andina. A partir de recolecciones realizadas en la Precordillera y Cordillera de los Andes en Mendoza (Argentina, se hallaron ejemplares pertenecientes a dos especies de dicha tribu de carábidos. El estudio de este material ha permitido establecer dos nuevas especies cuyos caracteres justifican su agrupación en un nuevo género, Austroglyptolenus nov. gen. La presencia de una carena dorsal en la protibia y el poseer la base del lóbulo medio esclerotizado agruparían a Austroglyptolenus nov. gen. con los géneros Glyptolenus Bates y Glyptolenoides Perrault. De ellos se diferencia por la forma de los metatarsitos, ausencia de diente en el saco interno y la presencia de un anillo de espículas en la bursa copulatriz. Por ello las especies de Austroglyptolenus nov. gen., A. mendozensis sp. nov. y A. precordillerae sp. nov. están más relacionadas con las especies de América del Sur tropical que con los Platynini australes extramontanos de la Argentina y Chile. En este aporte se proveen las descripciones e ilustraciones del género y de las nuevas especies, así como también claves para identificar los nuevos taxones.Platynini is a widespread tribe of carabids in South America, having the largest diversity of species in the tropical highlands of Andes. In Argentina and Chile, most of the platinine species are distributed in extra-Andean regions. Several specimens of platynine have been found in samples from the Precordillera and the Andes in Mendoza (Argentina. The study of these materials revealed two new species, whose characters justify the creation of a new genus, Austroglyptolenus gen. nov. The

CROSSROADS BETWEEN EDUCATION POLICIES AND INDIGENOUS LANGUAGES MAINTENANCE IN ARGENTINA

Directory of Open Access Journals (Sweden)

Ana Carolina Hecht

2010-06-01

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

La crisis Argentina y los medios de comunicación

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Federico Rey Lennon

2015-01-01

Full Text Available La crisis económica en Argentina ha sido difícil: revueltas, saqueos, renuncias cacerolazos, angustias, escepticismo, corridas bancarias. Los medios de comunicación transformados en actores sociales desempeñando papeles claves de control político, en un medio de escepticismo e inutilidad de la clase dirigente Argentina y de los políticos. El artículo intenta explicar el papel que le cupo a los medios en la construcción de esta realidad.

Rocky Mountain spotted fever in Argentina.

Science.gov (United States)

Paddock, Christopher D; Fernandez, Susana; Echenique, Gustavo A; Sumner, John W; Reeves, Will K; Zaki, Sherif R; Remondegui, Carlos E

2008-04-01

We describe the first molecular confirmation of Rickettsia rickettsii, the cause of Rocky Mountain spotted fever (RMSF), from a tick vector, Amblyomma cajennense, and from a cluster of fatal spotted fever cases in Argentina. Questing A. cajennense ticks were collected at or near sites of presumed or confirmed cases of spotted fever rickettsiosis in Jujuy Province and evaluated by polymerase chain reaction assays for spotted fever group rickettsiae. DNA of R. rickettsii was amplified from a pool of A. cajennense ticks and from tissues of one of four patients who died during 2003-2004 after illnesses characterized by high fever, severe headache, myalgias, and petechial rash. The diagnosis of spotted fever rickettsiosis was confirmed in the other patients by indirect immunofluorescence antibody and immunohistochemical staining techniques. These findings show the existence of RMSF in Argentina and emphasize the need for clinicians throughout the Americas to consider RMSF in patients with febrile rash illnesses.

Craft-Joule Project: Stagnation proof transparently insulated flat plate solar collector (static)

Energy Technology Data Exchange (ETDEWEB)

Oliva, A; Cadafalch, J; Perez-Segarra, C.D. [Universitat Politecnica de Catalunya, Barcelona (Spain)] (and others)

2000-07-01

versions for different temperature ranges contained within 80 and 160 Celsius degrees, covering different ranges of possible applications. [Spanish] El proyecto STATIC es un proyecto Joule dentro del marco de programa de energia no nuclear Joule III coordinado por el CenteR Tecnologico de Transferencia de Calor (CTTC). El grupo principal del SME involucrado el proyecto tiene su principal actividad economica en el campo de sistemas termicos solares a bajo nivel de temperatura (agua caliente domestica, calentamiento solar, etc.). Mas alla de esto existe un potencial grande de aplicacion para el calentamiento solar a nivel de temperatura medio entre (80 y 160 grados Celsius): calor industrial de proceso, enfriamiento solar y acondicionamiento de aire, secado solar, destilacion y desalinizacion. Tres de los cuatro proponentes SME estan ubicados en el sur de Europa y en el Caribe en donde una continua creciente demanda de acondicionamiento de aire y de enfriamiento ha sido demostrada en los ultimos anos. El desarrollo reciente de colectores solares de placa plana con cubierta de aislamiento transparente del tipo de panal de abeja ha demostrado que este tipo de colectores puede convertirse en una alternativa de bajo costo al tubo evacuado y a los colectores de alta concentracion CPC en el rango de temperatura media de 80 grados celsius y 160 grados celsius. Con la esperada reduccion del costo del colector, que constituye el 30% al 50% del costo total de sistema y puede lograse un decisivo adelanto de los sistemas termicos solares que usan calor en el rango de temperatura media. La factibilidad y buen rendimiento de estos colectores solares han sido demostrados en varios prototipos. No obstante hasta ahora no hay productos comerciales disponibles. Para lograr esto, los siguientes desarrollos de nuevos conceptos son necesarios y estan siendo llevados a cabo dentro de este proyecto: solucion al problema de sobrecalentamiento; desarrollo de versiones de colectores para diferentes

The Tribe Anisoscelini (Hemiptera: Heteroptera, Coreidae) in Argentina.

Science.gov (United States)

Coscarón, María Del Carmen; Pall, José Luis

2015-10-23

Eight genera and 21 species of the tribe Anisoscelini (Coreidae, Coreinae) are recorded in Argentina: Anisoscelis foliaceus (Fabricius); Coribergia declivicollis (Berg); Dalmatomammurius vandoesburgi (Brailovsky); Holymenia hystrio (Fabricius); Leptoglossus chilensis (Spinola); L. cinctus (Herrich-Schaeffer); L. concolor Walker; L. crassicornis (Dallas); L. dentatus Berg; L. fasciatus (Westwood); L. gonagra (Fabricius); L. impictus (Stål); L. ingens (Mayr); L. neovexillatus Allen; L. quadricollis (Westwood); L. stigma (Herbst); L. vexillatus (Stål); L. zonatus (Dallas); Phthia lunata (Fabricius); Phthiacnemia picta (Drury) and Ugnius kermesinus (Linnaeus). A key to genera belonging to the tribe is provided. L. stigma is recorded for the first time in Argentina with new locality records for La Rioja, Salta and San Juan.

Dictadura y relaciones internacionales: Argentina y Chile entre 1829 y 1852

OpenAIRE

Lacoste, Pablo

2001-01-01

The study analizes the relationaship between Argentina and Chile during Rosas’ dictatorship in Buenos Aires (1829-1852) in comparison with the previous period (1810-1829) and the later (1852-1881). Three parameters are considered: the treaties signature, the existence of diplomatic representations and the comercial policies. The study of the mentioned parameters showes the bilateral relationship deterioration during the dictatorship. The study analizes the relationaship between Argentina a...

Argentina.

Science.gov (United States)

1993-02-01

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

Research reactors in Argentina

International Nuclear Information System (INIS)

Carlos Ruben Calabrese

1999-01-01

Argentine Nuclear Development started in early fifties. In 1957, it was decided to built the first a research reactor. RA-1 reactor (120 kw, today licensed to work at 40 kW) started operation in January 1958. Originally RA-1 was an Argonaut (American design) reactor. In early sixties, the RA-1 core was changed. Fuel rods (20% enrichment) was introduced instead the old Argonaut core design. For that reason, a critical facility named RA-0 was built. After that, the RA-3 project started, to build a multipurpose 5 MW nuclear reactor MTR pool type, to produce radioisotopes and research. For that reason and to define the characteristics of the RA-3 core, another critical facility was built, RA-2. Initially RA-3 was a 90 % enriched fuel reactor, and started operation in 1967. When Atucha I NPP project started, a German design Power Reactor, a small homogeneous reactor was donated by the German Government to Argentina (1969). This was RA-4 reactor (20% enrichment, 1W). In 1982, RA-6 pool reactor achieved criticality. This is a 500 kW reactor with 90% enriched MTR fuel elements. In 1990, RA-3 started to operate fueled by 20% enriched fuel. In 1997, the RA-8 (multipurpose critical facility located at Pilcaniyeu) started to operate. RA-3 reactor is the most important CNEA reactor for Argentine Research Reactors development. It is the first in a succession of Argentine MTR reactors built by CNEA (and INVAP SE ) in Argentina and other countries: RA-6 (500 kW, Bariloche-Argentina), RP-10 (10MW, Peru), NUR (500 kW, Algeria), MPR (22 MW, Egypt). The experience of Argentinian industry permits to compete with foreign developed countries as supplier of research reactors. Today, CNEA has six research reactors whose activities have a range from education and promotion of nuclear activity, to radioisotope production. For more than forty years, Argentine Research Reactors are working. The experience of Argentine is important, and argentine firms are able to compete in the design and

Payenia volcanic province, southern Mendoza, Argentina

DEFF Research Database (Denmark)

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

2013-01-01

The Pleistocene to Holocene Payenia volcanic province is a backarc region of 60,000 km2 in Mendoza, Argentina, which is dominated by transitional to alkaline basalts and trachybasalts. We present major and trace element compositions of 139 rocks from this area of which the majority are basaltic...

Argentina and Brazil's competition over Bolivian's resources, needs and means half a century later

International Nuclear Information System (INIS)

Behrens, A.

1988-01-01

For fifty years Bolivia has managed to achieve an unstable balance of power between its most powerful neighbours, while still keeping together an ethnically diverse and poorly integrated country. However, prospects are grim. Bolivia's most important trade able goods face receding markets and natural gas exports to Argentina are likely to dwindle as that country develops its own domestic fields. Brazil, could substitute for Argentina but it needs to overcome a bitter legacy of commercial frustration with Bolivia and the opposition of Brazil's national oil company to natural gas imports. Moreover, Argentina may soon be a net exporter of natural gas as well. However, neither Brazil nor Argentina, both of whom share a sizeable frontier with Bolivia should not want to see her under too much distress. Pooling the natural gas resources of Argentina and Bolivia could cater for more orderly and reliable regional trade than in the past. The combined resources could be managed by a private enterprise (Gas del Plata) with all three countries as major shareholders. Reliable natural gas supplies may even help Brazil to revert its autarchic developmental trends. (author)

Acerca De La Identidad Boliviana En Argentina. Un Análisis De Tres Casos De Estudio En La Provincia De Buenos Aires, Argentina

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Mercedes Mariano

2015-08-01

Full Text Available This paper is about the representations, practices and cultural expressions carried out by groups of Bolivian immigrants and their descendants in the cities of Olavarria, Tandil and Azul in the province of Buenos Aires, Argentina. For this purpose, the three case studies presented are analyzed based on the theoretical notions of identities and ethnic groups proper to the field of social anthropology. It thus seeks to contribute to knowledge about the construction of the identities of Bolivian immigrants in Argentina and, especially, to the discussion of those perspectives that propose the cultural assimilation of these groups into the host society.

Tobacco industry targeting youth in Argentina

Science.gov (United States)

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

2013-01-01

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

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

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Gustavo E. FLORES

2007-01-01

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

Measured radon inside housings the Republic Argentina

International Nuclear Information System (INIS)

Canoba, A.; Arnaud, M.; Lopez, F.; Oliveira, A.A.

1998-01-01

They have been measured the radon concentration in houses in different city's in Argentina Republic. For they were used it as method mensuration detectors appearances nuclear detecting electrets and detectors based on the adsorption radon in activated carbon

Microencapsulación de sustancias oleosas mediante secado por aspersión Microencapsulation of oily substances by aspersion drying

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Orestes Darío López Hernández

2010-09-01

Full Text Available Para administrar por vía oral compuestos oleosos como los extractos lipídicos de origen natural, los aceites esenciales volátiles y las vitaminas liposolubles, se hace necesario presentarlos en forma de cápsulas blandas. Una alternativa a esta forma de presentación es la microencapsulación, que ofrece una solución para modificar el estado físico y presentarlos en una forma sólida para su administración por vía oral. Esta alternativa permite enmascarar el olor y sabor desagradable de productos que van a ser administrados por vía oral, además de proteger de la oxidación a los ácidos grasos presentes. El secado por aspersión es uno de los métodos más utilizados a escala industrial para la obtención de microcápsulas. Debido a su creciente uso en la industria farmacéutica, en el presente trabajo se recopila el estado del arte en el uso de esta tecnología para la microencapsulación de sustancias oleosas.To administer oral oily compounds such as lipid extracts of natural origin, volatile essential oils and liposoluble vitamins, it is necessary that presentation be in soft capsulae. An alternative to this form of presentation is the microencapsulation being a solution to modify the physical state and to achieve a solid form for its oral administration. This alternative allows masking the smell and the unpleasant flavor of oral products ant also to protect the oxidation of fatty acids present. The aspersion dry is one of the more used methods at industrial scale to microcapsulae achievement. Because of its increasing use in pharmaceutical industry in present paper is gathered the art of state in the use of this technology for oily substances microencapsulation.

Cultural Diversity: "Reports from Brazil and Argentina"

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Célia Regina Rossi

2007-06-01

Full Text Available This article tells two experiences of projects carried through in schools of basic education whose thematic it was the work with the cultural diversity, the valuation of other cultures and reflections on the proper culture The work was carried through in two schools: one in the state of São Paulo, the city of Rio Claro where as the thematic one worked was the Hip-Hop and cultural manifestations local Brazilians the second in the capital of a Argentina province, in the city of Paraná where it worked the contact and the relation enter the cultural manifestations of Brazil and Argentina The central objective of this work was to think ways that could lead to the construction of a school that it considered the differences and the learning that happens when these (the differences they are in relation.

Nuevos registros del género Cissampelos (Menispermaceae para la flora Argentina

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María Peña-Chocarro

2015-01-01

Full Text Available Cissampelos andromorpha DC. y C. arenicolaM. Nee & R. Ortiz se citan por primera vez para la flora Argentina. Se presentan descripciones e imágenes de pliegos de herbario de las especies mencionadas y se actualizan sus distribuciones geográficas. Se incluye una clave para la identificación de las cuatro especies de Cissampelospresentes en Argentina

Conflicto socioambiental y agronegocio: análisis histórico del conflicto en Malvinas Argentinas, Córdoba, Argentina.

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Leandro Carlos Barros

2016-12-01

Full Text Available En el presente artículo nos proponemos reflexionar sobre las formas de resistencia surgidas debido a los complejos procesos socioeconómicos y políticos vinculados a la expansión de los agronegocios, en el marco de la consolidación de un capitalismo extractivo en  gran parte de los países de América Latina.  Analizaremos en perspectiva sociohistórica el conflicto socioambiental en la localidad de Malvinas Argentinas, provincia de Córdoba, Argentina, en torno a la pretensión de la empresa Monsanto de radicar allí una planta de procesamiento de maíz transgénico. Para esto, pondremos el foco en la organización en asambleas de los actores sociales movilizados contra la instalación, en las acciones desplegadas y en el carácter multiescalar del conflicto.

Argentina 1967-70. Un tentativo fallito di stabilizzazione.

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G. MAYNARD

2014-08-01

Full Text Available Between 1950 and 1966 prices in Argentina rose at an average annual rate exceeding 25 percent. There have been several attempts to stabilise the situation, notably in 1966 when the military government took command. This attempt appeared to have considerable initial success, however, by 1970 the inflation rate began to accelerate again. This article describes the nature and characteristics of the stabilisation policy pursued in 1967-69. The author explains why, despite its initial success, in the end it broke down. Implications for the structuralist-monetarist controversy are then drawn. Finally, some conclusions that can be drawn for long-run development strategy and short-run stabilisation policy in Argentina are suggested.JEL: E31, E52, E60

Fruit fly eradication: Argentina

International Nuclear Information System (INIS)

2003-01-01

Fruit exports account for 9% of Argentina's total agricultural exports and generate annually close to $450 million. This could be increased but for fruit flies that cause damage equivalent to 15% to 20% of present production value of fruit and also deny export access to countries imposing quarantine barriers. The Department of Technical Co-operation is sponsoring a programme, with technical support from the Joint FAO/IAEA Division, to eradicate the Mediterranean fruit fly using the Sterile Insect Technique (SIT). (IAEA)

Primer registro de Vespula vulgaris (Hymenoptera: Vespidae) en la Argentina

OpenAIRE

Maité MASCIOCCHI; Jacqueline R. BEGGS; James M. CARPENTER; Juan C. CORLEY

2010-01-01

Vespula vulgaris (Linnaeus) es un véspido social nativo de la región Holártica. En este trabajo reportamos la primera detección de esta especie en Argentina. Obreras de esta avispa fueron capturadas cerca de la ciudad de San Carlos de Bariloche (Argentina) en Febrero de 2010, mientras se tomaban muestras de otra avispa invasora, Vespula germanica (Fabricius) o chaqueta amarilla, de morfología externa y hábitos similares a la anteriormente mencionada. Además, detallamos algunos caracteres de i...

NOVEDADES EN CALIBRACHOA (SOLANACEAE Y NOTAS TAXONÓMICAS SOBRE EL GÉNERO PARA LA ARGENTINA

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Julián A. Greppi

2013-01-01

Full Text Available Se describe e ilustra una nueva subespecie de Calibrachoa para Argentina y Brasil: C. linoides subsp. furcata. Se excluye a C. heterophylla de la flora argentina. Se consideran a C. linearis y a Petunia thymifolia f. gracilis como nuevos sinónimos de C. thymifolia y se esclarecen interpretaciones erróneas de dos especies (C. pubescens y C. humilis, previamente citadas para Argentina. Se designan lectotipos para Fabiana thymifolia, Petunia thymifolia f. gracilis y Salpiglossis linearis (= C. thymifolia.

Brasil e Argentina: uma análise do comércio de produtos da Linha Branca

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Marcelo Gregorio

2015-06-01

Full Text Available Resumo: Este trabalho possui como objetivo analisar o comércio bilateral entre o Brasil e a Argentina, em especial, para os produtos da linha branca. Foi contextualizado os principais acordos entre os dois países, com ênfase, após a união aduaneira oriunda do Mercado Comum do Sul – MERCOSUL, como principal mecanismo para o livre comércio. Neste contexto, utilizou-se do Índice de Vantagens Comparativas Reveladas – IVCR e o Índice de Orientação Regional – IOR, no período que compreende 2002-2011. Pode-se concluir que o Brasil possui evidente competitividade em relação a indústria argentina, em função disso, foi observado no período analisado que o setor de linha branca foi alvo de medidas protecionistas por parte da Argentina. Palavras-chave: comércio, Brasil-Argentina, produtos da linha branca. *** Resumen: Este trabajo tiene como objetivo analizar el comercio bilateral entre Brasil y Argentina, en particular para los productos de línea blanca. Fue contextualizado los principales acuerdos entre los dos países, con énfasis, después de la unión aduanera que viene del Mercado Común del Sur - MERCOSUR, como el mecanismo principal para el libre comercio. En este contexto, se utilizó el Índice de Revelado comparativo Advantage - IVCR y el Índice de Orientación regional - IOR, en el período que comprende desde 2002 hasta 2011. Se pudo concluir que Brasil tiene clara competitividad contra la industria argentina, y sobre esta base, se observó durante el período analizado el sector de productos de línea blanca era el objetivo de las medidas proteccionistas de Argentina. Palabras- clave: comercio, Brasil - Argentina, productos de linea blanca. *** Abstract: This work aims to analyze bilateral trade between Brazil and Argentina, in particular, for white goods. Major agreements between the two countries, with emphasis was contextualized, after the coming of the Customs Union Southern Common Market - MERCOSUR, as the main

UNA virus: first report of human infection in Argentina Virus UNA: primeiro registro de infecção em humanos na República Argentina

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Luis Adrián Diaz

2003-04-01

Full Text Available Una virus (UNAV, Togaviridae family, is widely distributed in South America, where infections have been detected in mosquitoes and vertebrate hosts (humans, birds and horses. We analyzed human sera from Córdoba inhabitants aged 44 to 89 years and using a neutralization test, we found a prevalence of UNAV antibodies of 3.8% (3/79. The low titers detected suggest past infections probably acquired in rural areas of the Province of Córdoba (central Argentina. None sera were found positive for MAYV neutralizing antibodies. This is the first report of human infections by UNAV in Argentina.O virus Una (Togaviridae tem ampla distribuição na América do Sul, detectando-se infecções até hoje em mosquitos e hospedeiros vertebrados (humanos, aves e cavalos. Mediante a realização do teste de neutralização em soros humanos provenientes de indivíduos entre 44 e 89 anos, da cidade de Córdoba, foi detectada uma prevalência de 3,8% (3/79 de anticorpos para o vírus UNA. Nenhum soro apresentou anticorpos para o vírus Mayaro. Os títulos foram baixos demonstrando-se a presença de infecção passada. Dados epidemiológicos indicam que a infecção ocorreu em áreas rurais da província de Córdoba (centro da Argentina. Os dados aqui expostos representam o primeiro registro de infecção de humanos por vírus Una na República Argentina.

Políticas públicas para la fruticultura en Argentina, 1930-1943 Public Policies for the Fruit Growing in Argentina, 1930-1943

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María Silvia Ospital

2013-04-01

Full Text Available El cierre de los mercados internacionales para la producción agraria argentina, consecuencia de la crisis internacional de 1929, obligó al Estado a implantar una serie de medidas alternativas regulatorias de la producción y mercado internistas. Estas prácticas políticas fueron acompañadas por campañas publicitarias que apuntaban a identificar consumo de productos nacionales con una nueva versión del patriotismo. Este artículo se propone realizar algunos aportes sobre esa cuestión, centrándose en las formas en que el Estado nacional -a través del Ministerio de Agricultura- y la dirigencia política y empresarial de la provincia de Mendoza elaboraron la imagen de la Argentina frutícola, productora de uvas de mesa, naranjas y manzanas para el consumo interno, a la vez que la promovían proyectándola como un novedoso renglón de las exportaciones argentinas.The closing of international markets for Argentine agrarian production forced the Government to implement a series of alternative measures such as production and commerce public regulations, bilateral treaties and the rediscovery of possibilities of the domestic market for national products. Those political measures were supplemented by a variety of advertising campaigns aimed at identifying the consumption of domestic products with a new way of patriotism. This paper aims to make contributions to this matter, focusing in the ways in which both the national government -through its agriculture ministry- and the political and corporate leaderships in the province of Mendoza composed the image of Argentina as an important producer of grapes, oranges and apples, while at the same time they stimulated fruit as a new source of the country international commerce.

Bioprospection of marine microorganisms: potential and challenges for Argentina Bioprospección de microorganismos marinos: potencialidades y desafíos para Argentina

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Hebe M Dionisi

2012-06-01

Full Text Available The marine environments of Argentina have a remarkable extension, as well as high biological productivity and biodiversity of both macro- and microorganisms. Despite having a great potential for biotechnological applications, the microorganisms inhabiting these ecosystems remain mostly unexplored and unexploited. In this review, we study the research topics and the interactions among Argentinean laboratories, by analyzing current articles published on biotechnology-related marine microbiology by researchers of this country. In addition, we identify the challenges and opportunities for Argentina to take advantage of the genetic potential of its marine microorganisms. Finally, we suggest possible actions that could improve the development of this research field, as well as the utilization of this knowledge to solve societal needs.El medio ambiente marino de la Argentina tiene una notable extensión, como así también una alta productividad biológica y biodiversidad de macro y microorganismos. A pesar de presentar un gran potencial para aplicaciones biotecnológicas, los microorganismos que habitan estos ecosistemas permanecen mayormente inexplorados y sus propiedades aún no explotadas. En este trabajo de revisión, estudiamos los temas de investigación y las interacciones entre grupos de investigación argentinos, por medio del análisis de los artículos publicados hasta el momento en temáticas relacionadas con la aplicación biotecnológica de microorganismos marinos. Además, identificamos los desafíos y las oportunidades para que la Argentina tome ventaja del potencial genético de sus microorganismos marinos. Por último, sugerimos posibles acciones que podrían mejorar el desarrollo de este campo de estudio, como así también la utilización de este conocimiento para resolver las necesidades de la sociedad.

Tobacco Industry Dominating National Tobacco Policy Making in Argentina, 1966-2005

OpenAIRE

Sebrie, Ernesto M.; Barnoya, Joaquin; Perez-Stable, Eliseo; Glantz, Stanton A.

2005-01-01

EXECUTIVE SUMMARY Argentina accounts for 15% of total tobacco consumption in Latin America and has made the epidemiological transition to an advanced stage in the tobacco epidemic. The Southern Cone region of the Americas leads the hemisphere in tobacco attributable mortality. Argentina is a developing country with economic interests in tobacco growing and rapidly increasing tobacco use in urban areas. In 2000, smoking prevalence was 40.4% among adults- 46.8% of men and 34% of wom...

A widening gap? The political and social organization of childcare in Argentina.

Science.gov (United States)

Faur, Eleonor

2011-01-01

This article examines how social policies and programmes implemented in Argentina shape the political and social organization of childcare. The author seeks to analyse how welfare institutions are currently responding to emerging needs, and to what extent they facilitate the defamilialization of childcare for different social classes. Because Argentina lacks a truly unified ‘care policy’, four different kinds of facilities and programmes are examined: employment-based childcare services; pre-school schemes; social assistance care services; and poverty reduction strategies. It is argued that far from offering equal rights and services with a universalist cast, these ‘caring’ institutions reflect the ethos of the current welfare model in Argentina: a fragmented set of social policies based on different assumptions for different social groups, which in turn filter down to the social organization of childcare.

Estimación de la carga de las enfermedades cardiovasculares atribuible a factores de riesgo modificables en Argentina Estimate of the cardiovascular disease burden attributable to modifiable risk factors in Argentina

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Adolfo Rubinstein

2010-04-01

Full Text Available OBJETIVO: Estimar la carga de la enfermedad, su proporción atribuible a los principales factores de riesgo cardiovascular modificables y los costos médicos directos por hospitalización, asociados con las enfermedades coronarias y los accidentes cerebrovasculares en Argentina. MÉTODOS: Se elaboró un modelo analítico a partir de los datos de mortalidad en Argentina en 2005 y la prevalencia de los principales factores de riesgo cardiovascular (hipertensión arterial, hipercolesterolemia, sobrepeso, obesidad, hiperglucemia, tabaquismo actual y pasado, sedentarismo y consumo inadecuado de frutas y verduras. Se estimaron la carga de la enfermedad -años potenciales de vida perdidos (APVP y años de vida saludable (AVISA perdidos- y los costos de hospitalización por las enfermedades cardiovasculares analizadas. RESULTADOS: En 2005 se perdieron en Argentina más de 600 000 AVISA y se contabilizaron casi 400 000 APVP por enfermedades coronarias y accidentes cerebrovasculares; 71,1% de los AVISA perdidos, 73,9% de APVP y 76,0% de los costos asociados son atribuibles a facto-res de riesgo modificables. La hipertensión arterial fue el factor de riesgo de mayor impacto, tanto en hombres como en mujeres: 37,3% del costo total, 37,5% de los APVP y 36,6% de los AVISA perdidos. CONCLUSIONES: La mayor parte de la carga de la enfermedad en Argentina por enfermedades cardiovasculares está relacionada con factores de riesgo modificables -por lo tanto evitables- y podría reducirse mediante intervenciones poblacionales y clínicas basadas en un enfoque de riesgo, que ya han demostrado ser efectivas en función del costo, asequibles y factibles en países como Argentina.OBJETIVE: Estimate the burden of disease, the proportion attributable to the principal modifiable cardiovascular risk factors, and the direct medical cost of hospitalization associated with coronary heart disease and stroke in Argentina. METHODOLOGY: An analitical model was prepared using

Catálogo de hongos gasteroides (Basidiomycota de Catamarca, Argentina Catalogue of gasteroid fungi (Basidiomycota from Catamarca, Argentina

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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.

The heavy water production plant at Arroyito, Argentina

International Nuclear Information System (INIS)

Ecabert, R.

1984-01-01

The author describes the construction of an industrial heavy water production plant (Planta Industrial de Agua Pesada, PIAP) in Argentina. The heavy water enrichment is based on a hydrogen/ammonia isotope exchange. (Auth.)

All projects related to Argentina | IDRC - International Development ...

International Development Research Centre (IDRC) Digital Library (Canada)

Program: Governance and Justice ... Region: Argentina, Brazil, Chile, Costa Rica, Paraguay, Uruguay ... Program: Canada-Israel Health Research Program ... and Twitter are having a direct bearing on social inclusion and opportunity in many ...

Nuevo hospedador de Huequenia livida (Coleoptera: Cerambycidae en Argentina New host record for Huequenia livida (Coleoptera: Cerambycidae in Argentina

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José María Villacide

2006-07-01

Full Text Available La presencia de adultos de Huequenia livida (Germain, 1898 (Cerambycidae fue detectada en una plantación de Pinus contorta Douglas ex Loudon var. murrayana (Balf. Engelm. en la localidad de Lago Puelo (Chubut, Argentina. Este es el primer registro del desarrollo de H. livida en una especie hospedadora distinta de Araucaria spp. Esta contribución agrega una nueva especie y una nueva familia al listado de plantas hospedadoras descriptas para este Cerambycidae en Chile.Adult of Huequenia livida (Germain, 1898 (Cerambycidae were captured in a Pinus contorta Douglas ex Loudon var. murrayana (Balf. Engelm. plantation located in Lago Puelo ( Chubut , Argentina . This is the first mention of the development of H. livida on a host species different than Araucaria spp. This contribution also adds a new host species and family to the list of host plants described for this Cerambycidae in Chile .

Influence of fruit maturity and calyx drying on cape gooseberry (Physalis peruviana l., stored at 18°C Influencia de la madurez del fruto y del secado del cáliz en uchuva (Physalis peruviana l., almacenada a 18°C

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Moreno Paola

2006-12-01

Full Text Available

Cape gooseberry fruits at the maturity stages 3 (yellow greenish or 5 (yellow orange and with calyx drying for 6 hours at 18 or 24ºC, were stored at the temperature of 18ºC and 85 % relative humidity for 20 days, to evaluate physical-chemical and physiological changes. The cape gooseberry, a climacteric fruit, presented the maximum of respiration between 6 and 8 days of storage. The 6th day of storage seems to be crucial due to the very high metabolism and the maximum contents of sugars and acids on this day. Soluble solids tended to increase and the titratable acids went to diminish. The fruit's sugar content was characterized by a major concentration of sucrose, followed by glucose and fructose. While the citric acid showed its highest level at the sixth storage day that of the tartaric acid increased constantly up to 18 days. The fruit maturity stage 3 is that which best conserved the sugars and organic acids evaluated. The maturity index influenced more than calyx drying the postharvest behavior of cape gooseberry. Calyx drying at 24ºC caused the highest climacteric peak and originated the highest loss of fresh weight in fruits harvested at maturity index 5.

Key words: Physalis peruviana; respiration; climacteric fruit; Brix degrees; organic acids; sugars.

Frutos de uchuva en estados de madurez 3 (amarillo verdoso ó 5 (amarillo naranja y con secado del cáliz durante seis horas a 18 y 24ºC, se almacenaron a temperatura ambiente (18ºC y humedad relativa del 75% durante 20 días, con el fin de evaluar cambios físico-químicos y fisiológicos. La uchuva, fruto climatérico, presentó el máximo de respiración entre los 6 y 8 días de almacenamiento. El día 6 de almacenamiento parece ser crucial debido al metabolismo muy elevado y los contenidos más altos de azúcares y ácidos. Los sólidos solubles totales tendieron a aumentar, la acidez titulable a disminuir. El contenido de azúcares se caracterizó por

All projects related to argentina | IDRC - International Development ...

International Development Research Centre (IDRC) Digital Library (Canada)

Program: Governance and Justice ... Region: Argentina, Brazil, Chile, Costa Rica, Paraguay, Uruguay ... Program: Food, Environment, and Health ... and Twitter are having a direct bearing on social inclusion and opportunity in many spheres of ...

The Politics of Human Rights in Argentina

OpenAIRE

Brysk, Alison

2013-01-01

Revised edition of 1994 out-of-print Stanford University Press study of human rights protest, social change, and democratization in Argentina.  A symbolic politics analysis of the truth commission, trials, and policy reform in Latin America's most sweeping transition of the 1980's.

Primera cita de Aleiodes laphygmae (Hymenoptera: Braconidae para Argentina y de su asociación con larvas de Spodoptera eridania (Lepidoptera: Noctuidae First record of Aleiodes laphygmae (Hymenoptera: Braconidae for Argentina and its association with larvae of Spodoptera eridania (Lepidoptera: Noctuidae

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Liliana Valverde

2012-06-01

Full Text Available Se reporta por primera vez para Argentina Aleiodes laphygmae (Viereck (Hymenoptera: Braconidae y como parasitoide de larvas de Spodoptera eridania (Stoll (Lepidoptera: Noctuidae, en plantaciones de soja en la provincia de Tucumán (Argentina. Se provee información biológica como hábitos, hospedadores y distribución.Aleiodes laphygmae (Viereck (Hymenoptera: Braconidae, is reported for the first time for Argentina. It is also reported parasitizing larvae of Spodoptera eridania (Stoll (Lepidoptera: Noctuidae in soybeans crops in Tucumán province (Argentina. Biological information on habits, hosts and distribution is provided.

The future of the history of psychology in Argentina and Brazil.

Science.gov (United States)

Klappenbach, Hugo; Jacó-Vilela, Ana Maria

2016-08-01

This article analyzes the development of the history of psychology in Argentina and Brazil, beginning with the emergence of the history of psychology at the beginning of the 20th century. The paper analyzes that such old historical reconstructions were written by the same authors or institutions that were introducing Psychology in the two countries. That is, the older historical productions in the field of psychology were Whig biased. An analysis of the last 30 years of history of psychology is also provided. The article describes institutional developments, including archives, journals, scientific meetings, and teaching of history of psychology in academic settings. Main groups devoted to history of psychology, both in Argentina and Brazil are described. Finally, it offers some thoughts on the future of history of psychology in the 2 countries. A comparative study between Argentina and Brazil allows to understand strengths and weakness related to institutionalization of History of Psychology. (PsycINFO Database Record (c) 2016 APA, all rights reserved).

Toxigenic potential of Fusarium graminearum isolated from maize of northwest Argentina

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D.A. Sampietro

2013-01-01

Full Text Available Twenty six isolates of Fusarium graminearum from grains of maize hybrids harvested in ±west Argentina were grown on autoclaved rice grain to assess their ability to produce type B trichothecenes. Chemical analysis indicated that 38% of isolates were nivalenol (NIV producers only, 31% were major NIV producers with high DON(deoxynivalenol/NIV ratios, 8% were major DON producers with minor NIV production, and 23% were DON producers only. Isolates showed a high variability in their toxigenic potential which was not related to fungal biomass. The distribution of the different chemotypes as well as the high and the low trichothecene-producing Fusarium isolates could not be associated to a geographical origin. Our results confirmed for the first time that isolates of Fusarium graminearum from maize of northwest Argentina are able to produce DON and NIV. A substancial contamination with both NIV and DON is likely in maize from northwest Argentina. Their contents should be quantified in regional surveillances for mycotoxin contamination.

Comparative 25-OH-vitamin D level in institutionalized women older than 65 years from two cities in Spain and Argentina having a similar solar radiation index.

Science.gov (United States)

Portela, María Luz Pita Martin; Mónico, Amália; Barahona, Antonieta; Dupraz, Hernan; Sol Gonzales-Chaves, Macarena Maria; Zeni, Susana Noemi

2010-03-01

The present study evaluated and compared vitamin D nutritional status and calcium-phosphorus metabolism in institutionalized women >65 y from two cities that have a similar sun irradiation index (heliophany). The study was carried out in women living in similar social-status institutions from geographic cities having a similar solar radiation index (Lleida, Spain, n=49, and suburban Buenos Aires, Argentina [BA], n=48) at the end of summer. Fish consumption was higher in the Lleida group, as was red-meat consumption in the BA group. In both groups mean calcium intake was 800 mg/d. The daily intake of vitamin D was higher in the BA group (P100 pg/mL were found in 24% and 20% of women in Lleida and BA, respectively. There was a marked increase in carboxy-terminal telopeptide cross-links of type I collagen levels and a decrease in 25OHD with an increase in PTH levels (Pbone alkaline phosphatase increased significantly only when the PTH concentration duplicated the reference range. Even at the end of summer, vitamin D deficiency/insufficiency was prevalent in the two studied institutionalized elderly women. In the narrow range of the dietary calcium intake (close to 800 mg/d) of both studied groups, secondary hyperparathyroidism was absent when 25OHD levels were >17 ng/dL, indicating changes in the regulation control of serum PTH and consequently the changes in this threshold. As a result, vitamin D deficiency must be reversed to avoid the increment in bone turnover and to ensure the endocrine and paracrine functions of vitamin D for overall health and well-being. Copyright (c) 2010 Elsevier Inc. All rights reserved.

Primer registro de Vespula vulgaris (Hymenoptera: Vespidae en la Argentina

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Maité MASCIOCCHI

2010-01-01

Full Text Available Vespula vulgaris (Linnaeus es un véspido social nativo de la región Holártica. En este trabajo reportamos la primera detección de esta especie en Argentina. Obreras de esta avispa fueron capturadas cerca de la ciudad de San Carlos de Bariloche (Argentina en Febrero de 2010, mientras se tomaban muestras de otra avispa invasora, Vespula germanica (Fabricius o chaqueta amarilla, de morfología externa y hábitos similares a la anteriormente mencionada. Además, detallamos algunos caracteres de identificación y características biológicas.

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

Science.gov (United States)

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

2016-01-01

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

Cryptosporidium varanii infection in leopard geckos (Eublepharis macularius in Argentina

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A. Dellarupe

2016-06-01

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

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

OpenAIRE

Cecilia Allami; Alan Cibils

2011-01-01

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

El financiamiento bancario de las PYMEs en Argentina (2002-2009)

OpenAIRE

Allami, Cecilia; Cibils, Alan

2011-01-01

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

RERTR activities in Argentina

International Nuclear Information System (INIS)

Adelfang, P.; Alvarez, L.; Boero, N.; Calabrese, R.; De La Fuente, M.; Echenique, P.; Markiewicz, M.; Pasqualini, E.; Perez, A.; Piazza, A.; Ruggirello, G.; Taboada, H.

2000-01-01

The Atomic Energy Commission of Argentina has been involved in the Reduced Enrichment for Research and Test Reactors Program since 1978. The most relevant milestones of the program, regarding fuel R and D activities, were the development and manufacturing at industrial scale of U 3 O 8 dispersed fuel assemblies and the conversion of the RA-3 reactor core to LEU fuel. More recently, the activities were focused in the development of high density U 3 Si 2 fuel with a density of 4.8 gU/cm 3 and the improvement of the manufacturing process of U 3 Si 2 powder. Currently one of the main objectives is to develop and qualify the technology for the production of high-density LEU fuel elements using U-Mo alloy. Several alternative ways to obtain U-Mo powder are under development with the aim of evaluating plant scale production and costs. To boost this program the main research reactor of Argentina, the RA-3, will be upgraded to 10 MW early in 2001 and the hot cells at the Ezeiza Atomic Center are fully operational after important investments. Significant progresses were also carried out in the development of LEU targets for the production of Mo 99 . Experimental work has demonstrated the feasibility of the manufacturing and radiochemical processing of miniplate targets prepared with dispersed UAl x , maintaining the geometry and the alkaline processing of the HEU targets used so far. (author)

Education in acoustics in Argentina

Science.gov (United States)

Miyara, Federico

2002-11-01

Over the last decades, education in acoustics (EA) in Argentina has experienced ups and downs due to economic and political issues interfering with long term projects. Unlike other countries, like Chile, where EA has reached maturity in spite of the acoustical industry having shown little development, Argentina has several well-established manufacturers of acoustic materials and equipment but no specific career with a major in acoustics. At the university level, acoustics is taught as a complementary--often elective--course for careers such as architecture, communication engineering, or music. In spite of this there are several research centers with programs covering environmental and community noise, effects of noise on man, acoustic signal processing, musical acoustics and acoustic emission, and several national and international meetings are held each year in which results are communicated and discussed. Several books on a variety of topics such as sound system, architectural acoustics, and noise control have been published as well. Another chapter in EA is technical and vocational education, ranging between secondary and postsecondary levels, with technical training on sound system operation or design. Over the last years there have been several attempts to implement master degrees in acoustics or audio engineering, with little or no success.

Especies del género Tamarix (Tamaricaceae invadiendo ambientes naturales y seminaturales en Argentina Tamarix species (Tamaricaceae invading natural and seminatural habitats in Argentina

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E. S. Natale

2008-07-01

Full Text Available El género Tamarix incluye especies con antecedentes como invasores agresivos en ambientes naturales de Estados Unidos, México y Australia. Su presencia en Argentina es conocida desde hace mucho tiempo, cultivado como ornamental, cortina corta-vientos o para sombra o creciendo de manera espontánea. Estudios previos citan un número variable de especies del género como cultivadas en el país, este trabajo aclara confusiones relacionadas con sinonimias, confirmando la presencia de cuatro especies en el país: T. gallica, T. ramosissima, T. chinensis y T. parviflora, las tres primeras registradas colonizando ambientes naturales o seminaturales. Se describen las especies del género citadas para Argentina y se provee una clave para su identificación. Se presenta la distribución conocida hasta el momento del género y se incluyen mapas con la ubicación de poblaciones establecidas e invasoras de cada especie a nivel nacional.The genus Tamarix includes species behaving as aggressive invaders in the USA, México and Australia. Previous studies report a variable number of species of this genus cultivated in Argentina as ornamentals, wind-break or for shadow, or growing spontaneously. This work makes clear some confusion related to synonyms and confirms the presence of four species in our country: T. gallica, T. ramosissima, T. chinensis and T. parviflora, the former three recorded colonizing natural and semi-natural habitats. A description of these species is given, together with a key for their identification, and information of their geographical distribution in Argentina, including maps showing the occurrence of established and invasive populations.

A new species of Miroculis (Ephemeroptera: Leptophlebiidae from NE Argentina Una nueva especie de Miroculis (Ephemeroptera: Leptophlebiidae del NE de Argentina

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Eduardo Domínguez

2007-12-01

Full Text Available The genus Miroculis Edmunds has species described from Brazil, Colombia, Peru, Venezuela and Suriname, with additional records from other countries in northern South America. In this paper, Miroculis (Ommaethus misionensis sp. nov. is described from male and female imagos from Misiones Province, NE Argentina. This constitutes the Southernmost record for the genus.El género Miroculis Edmunds tiene especies registradas en Brasil, Colombia, Perú, Venezuela y Surinam, con registros adicionales de otros países en el norte de América del Sur. En este trabajo se describe la especie Miroculis (Ommaethus misionensis sp. nov. de machos y hembras imago, de la provincia de Misiones, en el Noreste de Argentina, lo que constituye el registro más austral para el género.

Status of the forensically important genus Ophyra (Diptera: Muscidae in Argentina Estado del género de importancia forense Ophyra (Diptera: Muscidae en Argentina

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Luciano D. Patitucci

2010-06-01

Full Text Available The genus Ophyra Robineau-Desvoidy is a necrophagous group of Muscidae distributed in warm climates worldwide. The information here presented is based on the compilation of distributional data obtained from material of different collections and bibliography for Argentina. Ophyra albuquerquei Lopes, Ophyra capensis (Wiedemann, Ophyra chalcogaster (Wiedemann and Ophyra solitaria Albuquerque were recorded for the first time for the country. A key for the Argentinean species is presented. Biological and forensic data of species are discussed.El género Ophyra Robineau-Desvoidy es un grupo de múscidos necrófagos distribuidos en los climas cálidos de todo el mundo. La información aquí presentada se basa en la recopilación de datos de distribución, obtenida a partir del material de diferentes colecciones y bibliografía para la Argentina. Ophyra albuquerquei Lopes, Ophyra capensis (Wiedemann, Ophyra chalcogaster (Wiedemann y Ophyra solitaria Albuquerque se registraron por primera vez para el país. Se presenta una clave para las especies argentinas. Se discuten los datos biológicos y forenses de las distintas especies.

How Belgium helped establish a surveillance programme for Argentina's Atucha-2

Energy Technology Data Exchange (ETDEWEB)

Mitev, Lubomir [NucNet, Brussels (Belgium)

2015-02-15

Collaboration between Belgian experts and Argentina on the commissioning of Argentine reactors helped overcome problems caused by delays with construction. Marc Scibetta, deputy manager for nuclear materials science, from the Belgian Nuclear Research Centre (SCK CEN) gave an interview in which he told some facts to Lubomir Mitev of NucNet. The cooperation between SCK CEN an Argentina's Comision Nacional de Energia Atomica (CNEA) started in 2002. The first project was a support for the safety evaluation of the Atucha-1 reactor pressure vessel. When Argentina resumed the construction of Atucha-2 in 2006 - originally, construction started in 1981 but was suspended in 1985 due to financial reasons -, SCK CEN was asked to develop and implement a surveillance programme for the unit.

Argentina: Corrupción, dependencia y medios

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Alicia Simeoni

2015-01-01

Full Text Available Señala la autora que los medios con factores de poder pero no son parte del poder mismo. Analiza la corrupción en el gobierno de Menem (1989 Argentina, el caso Swiftgate y más hechos de corrupción.

Urban agriculture: Rosario, Argentina reaps the benefits | IDRC ...

International Development Research Centre (IDRC) Digital Library (Canada)

2010-10-06

Oct 6, 2010 ... Urban agriculture: Rosario, Argentina reaps the benefits ... Urban agriculture has become a permanent part of the city's fabric, ... The Global Roundtable of Chief Economists highlights global trends and best practices to help ...

Evaluación de un Secador Intermitente de Flujos Concurrentes (IFC para Café

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Ospina Machado Julio E.

1991-09-01

Full Text Available En Colombia, el secado de café pergamino, beneficiado por vía húmeda se realiza en dos sistemas: al sol y mecánico. El secado mecánico más utilizado es el estático, el cual presenta algunas desventajas, entre ellas, la desuniformidad en el contenido de humedad final del grano. Con el fin de disponer de una tecnología alterna de secado, el Centro Nacional de Investigaciones del Café (CENICAFE, desarrolló un proyecto de investigación sobre secado dinámico, para lo cual diseñó y evaluó un secador intermitente de flujos concurrentes (FC. En este trabajo se presentan los resultados de la evaluación de un secador tipo IFC de capacidad de 500 kg de café pergamino seco (c.p.s. y el sistema de transporte utilizado durante el secado. Las diferencias del contenido de humedad final de la masa de grano fue menor al 1% base seca (b.s. Las mejores condiciones de operación del secador fueron: temperatura del aire de secado, 80°C; flujo de grano, 0,04 m3/ min.m2 (volumen de grano; flujo de aire, 210 m3 / min.ton de café pergamino seco y tiempo de secado, 28 horas; incluyendo dos horas de aireación al final del proceso. Como resultado del análisis de calidad del café pergamino seco se encontró un promedio de 0,6% de grano pelado y una cantidad de pasillas en la almendra inferior al 5%. Después de cuatro meses de almacenamiento del café, en condiciones ambientales diferentes, la prueba de taza dio un café bueno (aroma. y sabor normal. El consumo de combustible (ACP M en promedio fue de 0,5 galones por hora y un rendimiento térmico de 5.600 KJ/ kg de agua evaporada. El transportador de cangilones de descarga por gravedad demostró ser una buena alternativa para mover el grano en este sistema de secado.

The industrial nuclear fuel cycle in Argentina

International Nuclear Information System (INIS)

Koll, J.H.; Kittl, J.E.; Parera, C.A.; Coppa, R.C.; Aguirre, E.J.

1977-01-01

The nuclear power program of Argentina for the period 1976-85 is described, as a basis to indicate fuel requirements and the consequent implementation of a national fuel cycle industry. Fuel cycle activities in Argentina were initiated as soon as 1951-2 in the prospection and mining activities through the country. Following this step, yellow-cake production was initiated in plants of limited capacity. National production of uranium concentrate has met requirements up to the present time, and will continue to do so until the Sierra Pintada Industrial Complex starts operation in 1979. Presently, there is a gap in local production of uranium dioxide and fuel elements for the Atucha power station, which are produced abroad using Argentine uranium concentrate. With its background, the argentine program for the installation of nuclear fuel cycle industries is described, and the techno-economical implications considered. Individual projects are reviewed, as well as the present and planned infrastructure needed to support the industrial effort [es

Spent fuel management of NPPs in Argentina

International Nuclear Information System (INIS)

Alvarez, D.E.; Lee Gonzalez, H.M.

2010-01-01

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

Argentina and Brazil: an evolving nuclear relationship

International Nuclear Information System (INIS)

Redick, J.R.

1990-01-01

Argentina and Brazil have Latin America's most advanced nuclear research and power programs. Both nations reject the Non-Proliferation Treaty (NPT), and have not formally embraced the Tlatelolco Treaty creating a regional nuclear-weapon-free zone. Disturbing ambiguities persist regarding certain indigenous nuclear facilities and growing nuclear submarine and missile capabilities. For these, and other reasons, the two nations are widely considered potential nuclear weapon states. However both nations have been active supporters of the International Atomic Energy Agency (IAEA) and have, in recent years, assumed a generally responsible position in regard to their own nuclear export activities (requiring IAEA safeguards). Most important, however, has been the advent of bilateral nuclear cooperation. This paper considers the evolving nuclear relationship in the context of recent and dramatic political change in Argentina and Brazil. It discusses current political and nuclear developments and the prospects for maintaining and expanding present bilateral cooperation into an effective non-proliferation arrangement. (author)

Public information activities in Argentina

International Nuclear Information System (INIS)

Espejo, Hector

1998-01-01

This is a presentation involving a description of the main guidelines and conditions under which nuclear activities have been performed in Argentina, both concerning the autonomous development for the peaceful use of nuclear energy and with regard to the way in which the community was informed of the attained levels. The particulars of each approach are shown as to delineate historical evolution as a function of the various stages of technological development. (author)

The text of the agreement between the Agency and Argentina relating to the application of safeguards

International Nuclear Information System (INIS)

1995-01-01

The Agreement between the Republic of Argentina, the Federative Republic of Brazil, the Brazilian-Argentine Agency for Accounting and Control of Nuclear Materials and the International Atomic Energy Agency for the Application of Safeguards came into force on 4 March 1994. As a result of the coming into force of the aforesaid Agreement for Argentina, the application of safeguards under the Agreement of 23 October 1973 between Argentina and the IAEA relating to the application of safeguards has been suspended

Construction and first atmospheric observations of a high spectral resolution lidar system in Argentina in the frame of a trinational Japanese-Argentinean-Chilean collaboration

Science.gov (United States)

Papandrea, S.; Jin, Y.; Ristori, P.; Otero, L.; Nishizawa, T.; Mizuno, A.; Sugimoto, N.; Quel, E.

2016-05-01

Atmospheric monitoring stations are being developed in Argentina. The most important targets are volcanic ashes, desert aerosols in particular Patagonian dust and biomass burning aerosols. Six stations deployed in the Patagonian Region and Buenos Aires have lidar systems, sun photometers integrated to the AERONET/NASA monitoring network, in situ optical particle analyzers, four solar radiation sensors (pyranometer, UVA, UVB and GUV), and meteorological equipment. The stations are in the main international airports of the Regions (San Carlos de Bariloche, Comodoro Rivadavia, Neuquén, Rio Gallegos) and in Buenos Aires (Aeroparque Jorge Newbery and at CEILAP/CITEDEF). CEILAP and the National Institute of Environmental Studies (NIES) at Tsukuba, Japan developed the first iodine cell-based high spectral resolution lidar (HSRL) in Argentina to add in the lidar network. We upgraded the standard CEILAP multi-wavelength Raman lidar adding the laser frequency tuning system and the 532 iodine-filtered channel at the reception to built the HSRL. HSRL will provide daytime and nighttime direct observation of the aerosol and cloud optical properties (backscatter and extinction) without the pre-assumption of the lidar ratio. This work shows the design and construction of the first Argentinean HSRL. We also show the first lidar observations done in the country with this kind of lidar.

Tributación del Sector Transporte en Argentina

OpenAIRE

Ernesto Rezk

2004-01-01

El objetivo general es examinar la carga tributaria efectiva sobre los servicios y las inversiones en infraestructura en los sectores de actividad del Transporte de Carga Terrestre (por camión) y Aéreo en la Argentina.

Adding seismic broadband analysis to characterize Andean backarc seismicity in Argentina

Science.gov (United States)

Alvarado, P.; Giuliano, A.; Beck, S.; Zandt, G.

2007-05-01

Characterization of the highly seismically active Andean backarc is crucial for assessment of earthquake hazards in western Argentina. Moderate-to-large crustal earthquakes have caused several deaths, damage and drastic economic consequences in Argentinean history. We have studied the Andean backarc crust between 30°S and 36°S using seismic broadband data available from a previous ("the CHARGE") IRIS-PASSCAL experiment. We collected more than 12 terabytes of continuous seismic data from 22 broadband instruments deployed across Chile and Argentina during 1.5 years. Using free software we modeled full regional broadband waveforms and obtained seismic moment tensor inversions of crustal earthquakes testing for the best focal depth for each event. We also mapped differences in the Andean backarc crustal structure and found a clear correlation with different types of crustal seismicity (i.e. focal depths, focal mechanisms, magnitudes and frequencies of occurrence) and previously mapped terrane boundaries. We now plan to use the same methodology to study other regions in Argentina using near-real time broadband data available from the national seismic (INPRES) network and global seismic networks operating in the region. We will re-design the national seismic network to optimize short-period and broadband seismic station coverage for different network purposes. This work is an international effort that involves researchers and students from universities and national government agencies with the goal of providing more information about earthquake hazards in western Argentina.

Vacuna contra la fiebre hemorrágica argentina Candid#1 producida en la Argentina: Inmunogenicidad y seguridad Candid#1 vaccine against Argentine Hemorrhagic Fever produced in Argentina: Immunogenicity and safety

Directory of Open Access Journals (Sweden)

Delia A. Enria

2010-06-01

Full Text Available Se realizó un estudio clínico en 946 voluntarios humanos sanos, donde se comparó la vacuna Candid#1 producida en Argentina con la elaborada en EE.UU., que había sido utilizada en estudios previos. Como objetivo primario se evaluó la equivalencia en la eficacia utilizando como marcador subrogante a la inmunogenicidad medida por detección de anticuerpos neutralizantes. Como objetivo secundario se evaluó la equivalencia en inocuidad comparando las tasas de reacciones adversas. Ambas vacunas mostraron una tasa equivalente de inmunogenicidad ligeramente superior al 95.5%, que es la eficacia estimada para Candid #1 en estudios previos. No se observaron eventos adversos graves relacionados con la vacuna. Los eventos adversos generales considerados relacionados fueron de escasa significación clínica y de resolución espontánea o con tratamiento sintomático; se presentaron en los receptores de ambas vacunas en tasas equivalentes (29.9% para la vacuna fabricada en la Argentina y 35.0% para la fabricada en EE.UU., e incluyeron: cefalea, decaimiento, mialgias, plaquetopenia leve (A clinical study in 946 human volunteers was done to compare Candid #1 vaccine manufactured in Argentina with the vaccine produced in USA that had been previously used. The efficacy was evaluated using immunogenicity measured by the detection of neutralizing antibodies as a subrogate marker. Safety was evaluated comparing the rate of adverse events. Both vaccines showed a comparable rate of seroconversion, slighty higher than the efficacy estimated from previous studies (95.5%. There were no severe adverse events related to the vaccines. The general events considered related to the vaccines were not clinically relevant and disappeared either spontaneously or with symptomatic treatment. Similar rates of adverse events (29.9% for the Argentine vaccine and 35.0% for the USA vaccine were found for both vaccines. These included: headache, weakness, myalgias, mild low blood

Argentina and Brazil's Relations to the EU

DEFF Research Database (Denmark)

Christensen, Steen Fryba

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

Argentina - Women Weaving Equitable Gender Relations

OpenAIRE

Stubbs, Josefina

2008-01-01

In 2001, after a long period of recession, Argentina faced the greatest economic, political, and institutional crisis in its history. Unemployment reached levels nearing 18 percent and the poverty rate reached a peak of 58 percent in 2002, increasing twofold the number of people living the poverty line and impacting in a disproportionate manner the most vulnerable and poverty stricken fami...

State regulation of nuclear sector: comparative study of Argentina and Brazil models; Regulacao estatal do setor nuclear: estudo comparativo dos modelos da Argentina e do Brasil

Energy Technology Data Exchange (ETDEWEB)

Monteiro Filho, Joselio Silveira

2004-08-01

This research presents a comparative assessment of the regulation models of the nuclear sector in Argentina - under the responsibility of the Autoridad Regulatoria Nuclear (ARN), and Brazil - under the responsibility of Comissao Nacional de Energia Nuclear (CNEN), trying to identify which model is more adequate aiming the safe use of nuclear energy. Due to the methodology adopted, the theoretical framework resulted in criteria of analysis that corresponds to the characteristics of the Brazilian regulatory agencies created for other economic sector during the State reform staring in the middle of the nineties. Later, these criteria of analysis were used as comparison patterns between the regulation models of the nuclear sectors of Argentina and Brazil. The comparative assessment showed that the regulatory structure of the nuclear sector in Argentina seems to be more adequate, concerning the safe use of nuclear energy, than the model adopted in Brazil by CNEN, because its incorporates the criteria of functional, institutional and financial independence, competence definitions, technical excellence and transparency, indispensable to the development of its functions with autonomy, ethics, exemption and agility. (author)

La incipiente formación de la identidad popular en el primer kirchnerismo en Argentina (2003-2007

Directory of Open Access Journals (Sweden)

Sebastián Barbosa

2012-06-01

Full Text Available This Paper analyses discursive formation realized for government in Argentina 2003-2007 for lustered the form that the Kirchnerism in Argentina presents like popular identity. The approach intent supersede macro politics investigations for include in a new analytics line, discursive, capable to light the specifically dynamics who a government form your politic identity. The hypothesis affirms discursive formations in Argentina are like populist at the Laclau theoretical model in your hegemony theory.

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

Science.gov (United States)

Fernandes Nogueira, Jaana Flavia

2013-01-01

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

Novidades taxonômicas em Maytenus (Celastraceae para a flora da Argentina

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Leonardo Biral

2014-01-01

Full Text Available No decorrer dos estudos taxonômicos de Maytenus Molina desenvolvidos pelo autor para a América do Sul, novidades taxonômicas para a flora argentina são apresentadas. Essas novidades incluem três sinonimizações, cinco lectotipificações e um novo registro de ocorrência no país. Dessa forma objetiva-se atualizar as informações disponíveis sobre o presente táxon na Argentina.

[First report of Echinococcus vogeli in a paca in Misiones province, Argentina].

Science.gov (United States)

Vizcaychipi, Katherina A; Helou, Marcia; Dematteo, Karen; Macchiaroli, Natalia; Cucher, Marcela; Rosenzvit, Mara; D'Alessandro, Antonio

2013-01-01

We report the first finding of Echinococcus vogeli in a paca, Cuniculus paca, in the tropical forest of Misiones, in the north of Argentina. The presence of the bush dog, Speothos venaticus, E. vogelís only natural definitive host, was also reported. The polycystic hydatids, 2 to 3 cm in diameter, were only found in the liver of an adult paca. The size range of the hooks and the relative proportion blade/handle did not show significant differences with respect to the ones reported for E. vogeli. The size of E. granulosus hooks, measured for comparison purposes, was significantly smaller (p E. vogeli in Argentina. The probability of finding neotropical echinococcosis in humans reinforces the need to expand the search for E. vogeli in Argentina. Echinococcosis due to E. vogeli is very aggressive and may cause death in about a third of the human population affected.

Foreign and Domestic Investment in Argentina: The Politics of Privatized Infrastructure, By Alison E. Post

DEFF Research Database (Denmark)

Manzetti, Luigi

2016-01-01

Book review of: Alison E. Post: Foreign and Domestic Investment in Argentina: The Politics of Privatized Infrastructure. Cambridge, 2014. 266 p. ISBN: 9781107048041......Book review of: Alison E. Post: Foreign and Domestic Investment in Argentina: The Politics of Privatized Infrastructure. Cambridge, 2014. 266 p. ISBN: 9781107048041...

Argentina

Directory of Open Access Journals (Sweden)

G. Benedetti

2007-01-01

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

Rights questioned. Limitations of poverty-reduction policies in Argentina.

Science.gov (United States)

Faur, Eleonor; Campos, Luis; Pautassi, Laura; Zimerman, Silvina

2009-01-01

This article analyses, from a human rights' approach, a group of social programmes implemented in Argentina from the year 2002, at the time of the biggest socioeconomic crisis that the country has suffered in the last decades. The main characteristics of the programmes are reviewed, and their anti-poverty strategy, along with design and implementation, are evaluated in relation to human rights. An assessment is also made of the existence of mechanisms for citizens to present claims. Finally, a set of recommendations are made to facilitate the adaptation of the programmes analysed to the duties the State of Argentina has as result of its adherence to international laws on human rights. The analytical methodology proposed by this article could be applied to other policy areas.

Sudden death syndrome of soybean in Argentina

Science.gov (United States)

Sudden death syndrome (SDS) is one of the most common and widely spread root disease affecting soybean [Glycine max (L.) Merr.] in Argentina where it is an economically important crop. This disease was first discovered in this country in 1992 in the Pampas Region, and the following year in Northwest...

Inequidad social, lugar de residencia y muerte prematura por cualquier causa en la Argentina

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Alejandro Macchia

2016-04-01

Full Text Available Introducción: Aunque recientemente se reportó la relación entre la muerte prematura y la condición socioeconómica en laArgentina, no existen análisis sobre el impacto que dicha condición tiene en distintas regiones del país.Objetivo: Describir el impacto que la condición socioeconómica presentó sobre la incidencia de muerte prematura en las distintasprovincias de la Argentina durante el período 2000-2010. Material y métodos: Se utilizó un modelo ecológico, que evaluó las tasas estandarizadas de muerte prematura (≤ 74 añosdurante el período 2000-2010. Asimismo, se examinó la relación entre la condición socioeconómica medida en deciles denecesidades básicas insatisfechas por departamento geográfico y la muerte prematura. La unidad de análisis fueron los 512departamentos de la Argentina y las 15 comunas de la ciudad de Buenos Aires. Resultados: La condición socioeconómica estuvo significativamente asociada con la muerte prematura en la Argentina durante el período analizado. En todas las provincias y regiones se observó un gradiente lineal entre la muerte precoz y la condición socioeconómica. Sin embargo, la pendiente de desigualdad entre los componentes de la condición socioeconómica varió significativamente entre los distintos departamentos. Mientras que en toda la Argentina la diferencia absoluta en la tasa estandarizada de muerte prematura entre los componentes extremos de condición socioeconómica fue de 10 muertes (rango:7,81-12,36 por cada 10.000 personas por año, en la ciudad de Buenos Aires esa diferencia fue de 61 muertes (rango: 53-69.Las comunas del sur de la ciudad de Buenos Aires fueron las zonas con mayor desigualdad social y sanitaria de la Argentina. Conclusiones: Aunque la inequidad social tuvo un impacto significativo en la muerte prematura en todo el período en toda la Argentina, la ciudad de Buenos Aires se mostró como la región más desigual.

A outra juventude radicalizada: o anticomunismo na Argentina e no Chile (1959-1973 = The other radicalised youth: anti-communism in Argentina and Chile (1959-1973

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Bohoslavsky, Ernesto

2016-01-01

Full Text Available A imagem dominante sobre os anos sessenta no Cone Sul faz referência aos processos de insubordinação social desenvolvidos por setores da população rural, trabalhadores urbanos e jovens de ambos os sexos, desencantados com a política formal e desejosos de promover mudanças sociais profundas. Entretanto, é possível identificar outra série de atores que também recorreram a um repertório de ações políticas de forte impacto público, mas sediados em uma coordenada ideológica completamente diversa. Este artigo revisa algumas das práticas e discursos de grupos de jovens incorporados às organizações de direita radical na Argentina e no Chile entre 1959 e 1973. Concentra-se no Movimiento gremialista, na juventude do Partido Nacional, na Frente Nacionalista Patria y Libertad (do Chile, no Movimiento Nacionalista Tacuara e na juventude da Federación Argentina de Entidades Democráticas Anticomunistas (da Argentina. Esta pesquisa comparativa consultou distintas fontes: imprensa comercial, jornais partidários e relatórios de órgãos de inteligência policial

[The psychologists in Argentina. Quantitative data].

Science.gov (United States)

Alonso, M M

1994-03-01

A partial report from a study dealing with Psychology's current status in Argentina is presented. Pursuant to this preliminary study 36,128 psychologists have taken their degree at both State and private universities in Argentina--between 1956, when the first Department of Psychology was created, and 1992. So, over a 32.5-million population (as per the 1991 census), there is a psychologist every 897 inhabitants, or 111 psychologists every 100,000 inhabitants. According to psychologists' geographical distribution, the highest density is to be found in the capital city of Buenos Aires (one psychologist every 246 inhabitants) while the lowest density is to be found in the Province of Chaco (one psychologist every 17,465 inhabitants). During year 1993, a total of 26,726 students have been studying Psychology at the different Argentine universities: Of these, 6,858 have taken their Psychology degree during this academic year. A great majority of psychologists work in the clinical field, being Psychoanalysis their prominent theoretical orientation. Ladies psychologists supposedly account for 85% of the overall number of psychologists. Psychological Associations have 24,878 active psychologists recorded, of which a great majority work in the clinical field.

Mesa redonda: Argentina en proyectos globales de investigaciones espaciales y astronómicas. Astronomía óptica en Argentina

Science.gov (United States)

Folatelli, G.

2016-08-01

This is a brief summary of the current status of observational astronomy in the optical range in Argentina, as seen by the author. This roundtable presentation aimed at setting off the discussion within the community about the issue of observational facilities and its posible solutions.

La marca país Argentina como herramienta cultural para el desarrollo económico

OpenAIRE

Amado Cuesta, Gisselle Catalina

2012-01-01

Argentina, uno de los países más visitados de América Latina deja al descubierto su marca país " Argentina Late con vos". Un mecanismo de política exterior con el cual el país ha obtenido grandes beneficios económicos.

The Text of the Agreement of 22 July 1977 between Argentina and the Agency for the Application of Safeguards in Connection with a Co-operation Agreement between Argentina and Canada

Energy Technology Data Exchange (ETDEWEB)

NONE

1977-11-28

The text of the Agreement of 22 July 1977 between Argentina and the Agency for the application of safeguards in connection with the Agreement of 30 January 1976 between the Governments of Argentina and Canada for co-operation in the development and application of atomic energy for peaceful purposes is reproduced in this document for the information of all Members. The Agreement entered into force, pursuant to Section 31, on 22 July 1977.

The Text of the Agreement of 22 July 1977 between Argentina and the Agency for the Application of Safeguards in Connection with a Co-operation Agreement between Argentina and Canada

International Nuclear Information System (INIS)

1977-01-01

The text of the Agreement of 22 July 1977 between Argentina and the Agency for the application of safeguards in connection with the Agreement of 30 January 1976 between the Governments of Argentina and Canada for co-operation in the development and application of atomic energy for peaceful purposes is reproduced in this document for the information of all Members. The Agreement entered into force, pursuant to Section 31, on 22 July 1977.

[Detection of Chlamydia abortus in bovine reproductive losses in the province of La Pampa, Argentina].

Science.gov (United States)

Rojas, María Del C; Fort, Marcelo; Bettermann, Simone; Entrocassi, Carolina; Costamagna, Sixto R; Sachse, Konrad; Rodríguez Fermepin, Marcelo

2018-01-16

Reproductive losses linked to an infectious etiology in bovine cattle are a major economic concern worldwide. In Argentina, more than 50% of abortion cases have unknown causes. Species belonging to Chlamydiaceae family are frequent etiologic agents of abortion around the world; however, there is yet no information on their prevalence in Argentina. The objective of this work was to identify Chlamydia spp., and particularly C. abortus in reproductive losses from bovine cattle in La Pampa, Argentina. Real time PCR targeting Chlamydiaceae-specific DNA fragments was performed on 251 samples obtained from bovine abortions and stillborns, and ArrayTube was used for species identification on positive samples. Chlamydiaceae DNA was detected in 12 samples of aborted fetuses (4.78%), 83.33% (10/12) accounting for abortions and 16.66% (2/12) for stillborns. C. abortus was detected by ArrayTube in 5 cases (1.99% of all samples, and 41.67% of Chlamydiaceae positive samples). This study shows the first detection of Chlamydiaceae and C. abortus DNA on reproductive losses of bovine cattle in Argentina, and the described prevalence value (4.78%) should be taken as baseline value due to the type of samples analyzed. Detection of genetic material from Chlamydiaceae not matching any of the studied species could be due to intraspecies variants or local species not yet described. Further research on Chlamydia infections in bovine cattle in Argentina is imperative to describe their range, to analyze their economic and zoonotic implications and to make recommendations about prevention and control measures. Copyright © 2017 Asociación Argentina de Microbiología. Publicado por Elsevier España, S.L.U. All rights reserved.

Argentina: Political and Economic Conditions and U.S. Relations

National Research Council Canada - National Science Library

Sullivan, Mark P

2006-01-01

Argentina's restructuring of over $100 billion in defaulted bond debt in June 2005 demonstrated the country's emergence from its 2001-2002 economic crisis that had caused severe stress on the political system...

Aging, care and social policy. Continuities and changes in Argentina and Mexico

OpenAIRE

Arroyo Rueda, María Concepción

2016-01-01

This paper intends to show from a comparative perspective of social policy, the provision of care in old age in Argentina and Mexico. It will also show the experience of the national policy of care in Argentina. In this country we carried out interviews with coordinators, operational personnel and users of the national program of care. The participants identify in the policy a vision of rights and social inclusion of the elderly and effective support for family caregivers. Meanwhile, in the c...

Argentina : tous les projets | Page 7 | CRDI - Centre de recherches ...

International Development Research Centre (IDRC) Digital Library (Canada)

Sujet: INTERNATIONAL AGREEMENTS, WOMEN'S RIGHTS, LEGISLATION, ACCESS TO ... SERVICES, GENDER DISCRIMINATION, GENDER EQUALITY, Gender ... Région: Argentina, Bangladesh, Brazil, India, Lebanon, Malawi, Viet Nam.

Primer registro para la Argentina de una especie de chicharrita, Ctenarytaina spatulata (Hemiptera: Psyllidae, en plantaciones de eucalipto en Entre Ríos New record in Argentina of a species of jumping plant-lice, Ctenarytaina spatulata (Hemiptera: Psyllidae, in eucalypt plantations from Entre Ríos

Directory of Open Access Journals (Sweden)

Juan P. R. Bouvet

2008-06-01

Full Text Available Se menciona por primera vez para Argentina la especie Ctenarytaina spatulata Taylor, asociada a plantaciones de eucalipto. Este nuevo registro se obtuvo en la Provincia de Entre Ríos, Argentina.Ctenarytaina spatulata Taylor, a species associated with eucalypt plantations, is recorded for the first time from Entre Ríos, Argentina.

75 FR 36347 - Determination of Pest-Free Areas in Mendoza Province, Argentina; Request for Comments

Science.gov (United States)

2010-06-25

...] Determination of Pest-Free Areas in Mendoza Province, Argentina; Request for Comments AGENCY: Animal and Plant... received a request from the Government of Argentina to recognize additional areas as pest- free areas for... determined that these areas meet the criteria in our regulations for recognition as pest-free areas. We are...

Argentina : tous les projets | Page 8 | CRDI - Centre de recherches ...

International Development Research Centre (IDRC) Digital Library (Canada)

... INNOVATIONS, INFORMATION TECHNOLOGY, Internet, TEACHING AIDS, ... Région: Argentina, South America, Brazil, Chile, Colombia, Mexico, North and ... Sujet: SOCIAL PARTICIPATION, Civil society, HEALTH SYSTEM, Evaluation.

Argentina : tous les projets | Page 4 | CRDI - Centre de recherches ...

International Development Research Centre (IDRC) Digital Library (Canada)

Région: Argentina, South America, Brazil, Chile, Mexico, North and Central America ... Sujet: WOMEN'S PARTICIPATION, POLITICS, POLITICAL LEADERSHIP, WOMEN'S RIGHTS, GENDER ... Sujet: BIOLOGY, BIODIVERSITY, ECOLOGY.

Proteomics in Argentina - limitations and future perspectives: A special emphasis on meat proteomics.

Science.gov (United States)

Fadda, Silvina; Almeida, André M

2015-11-01

Argentina is one of the most relevant countries in Latin America, playing a major role in regional economics, culture and science. Over the last 80 years, Argentinean history has been characterized by several upward and downward phases that had major consequences on the development of science in the country and most recently on proteomics. In this article, we characterize the evolution of Proteomics sciences in Argentina over the last decade and a half. We describe the proteomics publication output of the country in the framework of the regional and international contexts, demonstrating that Argentina is solidly anchored in a regional context, showing results similar to other emergent and Latin American countries, albeit still far from the European, American or Australian realities. We also provide a case-study on the importance of Proteomics to a specific sector in the area of food science: the use of bacteria of technological interest, highlighting major achievements obtained by Argentinean proteomics scientists. Finally, we provide a general picture of the endeavors being undertaken by Argentinean Proteomics scientists and their international collaborators to promote the Proteomics-based research with the new generation of scientists and PhD students in both Argentina and other countries in the Southern cone. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Scinax berthae Barrio, 1962 (Anura, Hilydae. Primera cita para la provincia de Corrientes, Argentina

Directory of Open Access Journals (Sweden)

Waller, Tomás

2000-04-01

Full Text Available Argentina: Corrientes, departamento San Martín, Colonia Carlos Pellegrini, inmediaciones de la laguna Iberá (28°32'28"S - 57°10'20"W, Datum: WGS 84. Altitud: 65 m snm. 16 de octubre de 1999. Dos ejemplares macho. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia", Buenos Aires, Argentina (MACN 37081, 37082. Colector: Tomás Waller.

Trend in infant mortality rate in Argentina within the framework of the Millennium Development Goals.

Science.gov (United States)

Finkelstein, Juliana Z; Duhau, Mariana; Speranza, Ana

2016-06-01

Infant mortality rate (IMR) is an indicator of the health status of a population and of the quality of and access to health care services. In 2000, and within the framework of the Millennium Development Goals, Argentina committed to achieve by 2015 a reduction by two thirds of its 1990 infant mortality rate, and to identify and close inter-jurisdictional gaps. The objective of this article is to describe the trend in infant mortality rate in Argentina and interjurisdictional gaps, infant mortality magnitude and causes, in compliance with the Millennium Development Goals. A descriptive study on infant mortality was conducted in Argentina in 1990 and between 2000 and 2013, based on vital statistics data published by the Health Statistics and Information Department of the Ministry of Health of Argentina. The following reductions were confirmed: 57.8% in IMR, 52.6% in neonatal mortality rate and 63.8% in post-neonatal mortality rate. The inter-provincial Gini coefficient for IMR decreased by 27%. The population attributable risk decreased by 16.6% for IMR, 38.8% for neonatal mortality rate and 51.5% for post-neonatal mortality rate in 2013 versus 1990. A significant reduction in infant mortality and its components has been shown, but not enough to meet the Millennium Development Goals. The reduction in IMR gaps reached the set goal; however, inequalities still persist. Sociedad Argentina de Pediatría.

Bibliometric analysis of scientific literature on intestinal parasites in Argentina during the period 1985-2014.

Science.gov (United States)

Basualdo, Juan A; Grenóvero, María S; Bertucci, Evangelina; Molina, Nora B

2016-01-01

The study of scientific production is a good indicator of the progress in research and knowledge generation. Bibliometrics is a scientific discipline that uses a set of indicators to quantitatively express the bibliographic characteristics of scientific publications. The scientific literature on the epidemiology of intestinal parasites in Argentina is scattered in numerous sources, hindering access and visibility to the scientific community. Our purpose was to perform a quantitative, bibliometric study of the scientific literature on intestinal parasites in humans in Argentina published in the period 1985-2014. This bibliometric analysis showed an increase in the number of articles on intestinal parasites in humans in Argentina published over the past 30 years. Those articles showed a collaboration index similar to that of the literature, with a high index of institutionality for national institutions and a very low one for international collaboration. The original articles were published in scientific journals in the American Continent, Europe and Asia. The use of bibliometric indicators can provide a solid tool for the diagnosis and survey of the research on epidemiology of intestinal parasites and contributes to the dissemination and visibility of information on the scientific production developed in Argentina. Copyright © 2016 Asociación Argentina de Microbiología. Publicado por Elsevier España, S.L.U. All rights reserved.

Astronomy Teaching in Argentina in the 19th Century. (Spanish Title: La Enseñanza de la Astronomía en la Argentina del Siglo XIX.) O Ensino de Astronomia na Argentina no Século XIX

Science.gov (United States)

Norberto Cornejo, Jorge; Santilli, Haydée

2010-12-01

Sarmiento believed that Copernican astronomy was one of the critical scientific disciplines to the formation of a "modern" citizen. In this work, we shall study astronomical science from two points of view: from the scientific knowledge and the educational presentation of such knowledge. Our study will address in Argentina in 19th century, starting from the initiative of Bernardino Rivadavia in 1821, who founded an astronomic observatory at Buenos Aires, until the first activities of the observatories at Córdoba and La Plata. On both lines, scientific and educative, we shall analyze the influence of positivist ideas. We shall highlight epistemological differences between both observatories, Córdoba's based on French positivism and La Plata's based on German positivism. We shall also show the different attitude of both observatories towards education. We shall see the way in which positivist ideas had great relevance in the training of elementary school teachers. We shall also establish the relevant influence of the socio-historical context over the astronomical development, and show that astronomy was a fundamental social factor at Argentina history. Domingo F. Sarmiento consideraba que la astronomía copernicana era una de las disciplinas científicas fundamentales para la conformación de un ciudadano "moderno". En este trabajo estudiaremos la ciencia astronómica desde dos vertientes: la referida específicamente al conocimiento científico y aquella vinculada con la presentación educativa de dicho conocimiento. Nuestro estudio se desarrollará en Argentina durante el siglo XIX, desde la iniciativa de Bernardino Rivadavia en 1821, de establecer en Buenos Aires un observatorio astronómico, hasta las primeras actividades de los observatorios de Córdoba y de La Plata. En ambas vertientes, científica y educativa, analizaremos la influencia de las ideas positivistas. Resaltaremos las diferencias epistemológicas entre los dos observatorios, orientado el primero

Dinámicas territoriales de la industria automotriz argentina (1990-2012

Directory of Open Access Journals (Sweden)

Matías Donato Laborde

2014-06-01

Full Text Available El presente trabajo propone contribuir al análisis de las dinámicas territoriales vinculadas al funcionamiento de la industria automotriz argentina en los periodos de la convertibilidad y post convertibilidad. En este marco, se analizarán las principales características de la industria automotriz teniendo en cuenta las políticas públicas, las diferentes estrategias desplegadas por las empresas y los intercambios comerciales, asimismo se utilizan fuentes estadísticas del INDEC, la AFAC (Asociación de Fábricas Argentinas de Componentes y ADEFA (Asociación de Fábricas de Automotores.

Rodolfo Kusch and the constitution of what’s popular in Argentina

OpenAIRE

Rivara, Lautaro

2016-01-01

De la vasta obra del filósofo argentino Rodolfo Kusch (1922-1979), quién desarrollara diversas líneas de reflexión-investigación, abordaremos sus tesis sobre la constitución de lo popular en la Argentina. Para ello nos detendremos en dos momentos: por un lado, desarrollaremos su peculiar lectura sobre el ciclo político de la independencia y sobre el período de la organización nacional-estatal argentina, centrándonos en su debate con el clásico binomio sarmientino "civilización o barbarie" y ...

All projects related to Argentina | Page 8 | IDRC - International ...

International Development Research Centre (IDRC) Digital Library (Canada)

Health Financing, Equity and Poverty in Latin America ... Region: North and Central America, South America, Argentina, Brazil, Chile, Colombia, Costa ... one of the most serious but least publicized public health problems in Latin America.

An overview of actions concerning life management of nuclear power plants in Argentina

International Nuclear Information System (INIS)

Pochettino, A.A.

1995-01-01

An overview of actions concerning life management of nuclear power plants in Argentina is presented including the following issues: reorganization of nuclear activities in Argentina; life extension actions; main specific research and development actions (reactor pressure vessel integrity assessment project; reactor internal components project; heat exchanges project); other research and development actions (non-destructive testing developments; eddy current techniques; acoustic emission applications; materials; vibrations and fretting wear; reactor chemistry; control and instrumentation; probabilistic safety assessment)

The boom and crisis of the Convertibility Plan in Argentina

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SEBASTÍAN PEDRO SALVIA

2015-06-01

Full Text Available This article analyses the relationship between state policies and economy in Argentina 1991-2001. In 1991 the currency board regime named 'convertibility' was implemented, within the framework of important neoliberal reforms introduced by the State. These neoliberal reforms facilitated capitalist restructuring, characterized by a leap in productivity, investment and profits. Likewise, these reforms generated imbalances which, along with the changes in the world market conditions from 1998, led to the deepest crisis in Argentina's history. The inefficiency of state neoliberal policies in managing the crisis, based on fiscal adjustment to guarantee the continuity of external financing, led to an economic depression and a financial crash, sparking a mass rebellion and the end of convertibility.

A new pentatomoid bug from the Ypresian of Patagonia, Argentina

Directory of Open Access Journals (Sweden)

Julián F. Petrulevičius

2016-12-01

Full Text Available A new pentatomoid heteropteran, Chinchekoala qunita gen. et sp. nov. is described from the lower Eocene of Laguna del Hunco, Patagonia, Argentina. The new genus is mainly characterised by cephalic characters such as the mandibular plates surpassing the clypeus and touching each other in dorsal view; head wider than long; and remarkable characters related to the eyes, which are surrounded antero-laterally and posteriorly by the anteocular processes and the pronotum, as well as they extend medially more than usual in the Pentatomoidea. This is the first pentatomoid from the Ypresian of Patagonia and the second from the Eocene in the region, being the unique two fossil pentatomoids in Argentina.

Contribution to the knowledge of pathogenic fungi of spiders in Argentina. Southernmost record in the world.

Science.gov (United States)

Manfrino, Romina G; González, Alda; Barneche, Jorge; Tornesello Galván, Julieta; Hywell-Jones, Nigel; López Lastra, Claudia C

The aim of this study was to identify entomopathogenic fungi infecting spiders (Araneae) in a protected area of Buenos Aires province, Argentina. The Araneae species identified was Stenoterommata platensis. The pathogens identified were Lecanicillium aphanocladii Zare & W. Gams, Purpureocillium lilacinum (Thom) Luangsa-ard, Houbraken, Hywel Jones & Samson and Ophiocordyceps caloceroides (Berk & M.A. Curtis). This study constitutes the southernmost records in the world and contributes to expanding the knowledge of the biodiversity of pathogenic fungi of spiders in Argentina. Copyright © 2016 Asociación Argentina de Microbiología. Publicado por Elsevier España, S.L.U. All rights reserved.

A review of hymenopterous parasitoid guilds attacking Anastrepha spp. and Ceratitis capitata (Diptera: Tephritidae) in Argentina

Energy Technology Data Exchange (ETDEWEB)

Ovruski, Sergio M.; Orono, Luis E.; Nunez-Campero, Segundo; Schliserman, Pablo; Albornoz-Medina, Patricia; Bezdjian, Laura P.; Nieuwenhove, Guido A. Van; Martin, Cristina B. [Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET), Tucuman (Argentina). Planta Piloto de Procesos Industriales Microbiologicos y Biotecnologia. Div. Control Biologico de Plagas

2006-07-01

This study provides detailed information on the diversity, abundance, guilds, host plant and host fly ranges, distribution, and taxonomic status of hymenopterous parasitoid species associated with Ceratitis capitata (Wiedemann) and Anastrepha spp. (A. fraterculus (Wiedemann) and A. schultzi Blanchard) in Argentina. Moreover, the article also argues future needs regarding the use of some parasitoid species as an alternative tool in fruit fly management programs of the National Fruit Fly Control and Eradication Program (PROCEM-Argentina). Data used for this work were obtained from numerous old and recent published articles on fruit fly parasitoids in Argentina. (author)

A review of hymenopterous parasitoid guilds attacking Anastrepha spp. and Ceratitis capitata (Diptera: Tephritidae) in Argentina

International Nuclear Information System (INIS)

Ovruski, Sergio M.; Orono, Luis E.; Nunez-Campero, Segundo; Schliserman, Pablo; Albornoz-Medina, Patricia; Bezdjian, Laura P.; Nieuwenhove, Guido A. Van; Martin, Cristina B.

2006-01-01

This study provides detailed information on the diversity, abundance, guilds, host plant and host fly ranges, distribution, and taxonomic status of hymenopterous parasitoid species associated with Ceratitis capitata (Wiedemann) and Anastrepha spp. (A. fraterculus (Wiedemann) and A. schultzi Blanchard) in Argentina. Moreover, the article also argues future needs regarding the use of some parasitoid species as an alternative tool in fruit fly management programs of the National Fruit Fly Control and Eradication Program (PROCEM-Argentina). Data used for this work were obtained from numerous old and recent published articles on fruit fly parasitoids in Argentina. (author)

La psicologización de la sexualidad en Argentina (1900-1970 The Psychologization Of Sexuality In Argentina (1900-1970

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Ana María Talak

2008-12-01

Full Text Available El trabajo analiza diferentes modos de abordar problemas relacionados con la sexualidad en la Argentina, a través de la conformación de conocimientos que utilizan descripciones y explicaciones en términos psicológicos. Se parte de la hipótesis de que conjuntamente con la medicalización de la sexualidad en Argentina se produjo un proceso de psicologización de la misma. El término psicologización alude a la conformación e implantación extendida de una grilla interpretativa de los problemas humanos en términos psicológicos, y a la mayor presencia de los saberes de las disciplinas psicológicas (en sus relaciones con el psicoanálisis y la psiquiatría en este proceso. Se estudian seis casos desde principios del siglo XX hasta comienzos de la década de 1970, y se utilizan como fuentes artículos y libros de autores argentinos. El trabajo se inscribe en el enfoque de una historia de la psicología entendida como historia de las ideas y de las prácticas.This work analyzes different approaches to problems related to sexuality in Argentina, through the constitution of a knowledge that uses psychological descriptions and explanations. Our main hypothesis affirms along with sexuality medicalization, a process of sexuality psychologization befell. The term psychologization refers to the extended constitution and implantation of an interpreting gird of human problems in psychological terms, and the increasing presence of knowledge from psychological disciplines (in their relations with psychoanalysis and psychiatry in this process. Six cases are studied, from the beginnings of the twentieth century to the seventies decade, using articles and books from argentine authors as sources. This article adopts a history of psychology approach in terms of a history of ideas and practices.

Suscripción de revistas en línea en la Argentina, 2007 On line journals subscription in Argentina, 2007

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Susana Romanos de Tiratel

2011-12-01

Full Text Available El artículo presenta los resultados de una investigación orientada a describir aspectos del proceso de suscripción de revistas en línea en la Argentina. Entre abril y setiembre del año 2007 se aplicó una encuesta vía correo electrónico a bibliotecas especializadas y universitarias argentinas para indagar acerca de los actores involucrados en la identificación, evaluación y selección de títulos, en la negociación y firma de las licencias, las modalidades de suscripción y los tipos de recursos suscriptos por esas unidades de información. Se observó una alta participación de los bibliotecarios en todo el proceso que disminuía en la etapa de negociación y firma de los acuerdos de licencia donde los directores institucionales y los administradores tenían un rol más destacado.This paper presents the findings of an investigation aimed at describing aspects of the process of online journals subscription in Argentina. From April to September of 2007 a survey was conducted via electronic mail to special and academic libraries to inquire about Argentine actors involved in the identification, evaluation, and selection of titles, in the negotiation and signing of the licences, the subscription methods, and type of resources subscribed for those information units. There was a high participation of librarians in the process that decreased in the stage of negotiating and signing the licencing agreements where institutional managers and administrators had a more prominent role.

Investment in Renewable Energies in Argentina

OpenAIRE

Marina Recalde

2017-01-01

This article analyzes how the enabling conditions of the energy policy of a developing country such as Argentina, are crucial for the deployment of renewable energy investments. The conclusions highlights that the low institutional quality of the country shapes enabling conditions and reduce effect of the instruments of the energy policy, dropping incentives for investment in renewable technologies in the country. Therefore, in order to promote renewable technologies investments efficiently, ...

Vinos, carnes, ferrocarriles y el Tratado de Libre Comercio entre Argentina y Chile (1905-1910

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Pablo Lacoste

2004-06-01

Full Text Available Entre 1905 y 1910 Chile y Argentina negociaron la firma de un Tratado de Comercio con vistas a suprimir los aranceles aduaneros y consagrar el principio de "Cordillera Libre". El centro de atracción eran las exportaciones de ganado argentino a Chile y de vino chileno a Argentina. Pero en ambos países se produjo una fuerte reacción de los intereses creados con vistas a frustrar las tratativas diplomáticas. Tanto la Sociedad Nacional de Agricultura (Chile como el Centro Vitivinícola Nacional (Argentina realizaron intensas gestiones para alcanzar sus objetivos; esta última corporación llegó a movilizar miles de personas para oponerse al tratado; y hasta solicitó ayuda a los ferrocarriles británicos para que obstaculizaran el ingreso de los vinos chilenos al mercado argentino. La intensa resistencia de estas corporaciones terminaron por frustrar el proyecto, el cual fue definitivamente archivado en 1911.Between 1905 and 1910, Chile and Argentina negotiated the signature of a Trade Agreement in order to abolish the customs duties and consecrate the principle of "Free Mountain Range". The centre of attraction was the exports of Argentinean cattle to Chile and of Chilean wine to Argentina. But in both countries there aroused a strong reaction of the vested interests, purposely to thwart the diplomatic negotiations. Both, the Sociedad Nacional de Agricultura (Chile as well as the Centro Vitivinícola Nacional (Argentina carried out intense negotiations to reach their objectives; the latter even movilized thousands of people to oppose the treaty and went as far as requesting the help of the British railroads to block the entrance of Chilean wines to the Argentinean market. The stiff opposition of these corporations finally frustrated the project, which was definitively filed away in 1911.

Health care for older persons in Argentina: a country profile.

Science.gov (United States)

Montero-Odasso, Manuel; Przygoda, Pablo; Redondo, Nélida; Adamson, Juan; Kaplan, Roberto

2004-10-01

Argentina is a large country situated at the southern end of the Americas. It is highly urbanized, and almost one-third of the population lives in the capital city and its surrounding area (Buenos Aires). The population is composed of heterogeneous groups, formed primarily by descendants of European immigration who constitute 85% of the inhabitants. In the last 30 years, Argentina has witnessed a growth in the elderly population from less than 7% to nearly 10% of the total population. Additionally, in Buenos Aires City, more than 17% are aged 65 or older. The healthcare systems for the elderly lack nationwide coverage. The Programa de Atención Médica Integral (PAMI) is the largest program for elderly care. It is a state-run program for disabled and senior citizens. PAMI serves 65% of the approximately 3.6 million older people in Argentina. The quality of PAMI healthcare delivery has decreased in the last 2 decades and has largely declined since the Argentinean economic crisis of late 2001. The rehabilitation and long-term care services are relatively underdeveloped, and fewer than 2% of senior citizens live in residential or nursing homes. Recently, the government has proposed a system of care built up from the primary care resources of the community.

Family Dynamics and Personal Strengths among Dementia Caregivers in Argentina

Science.gov (United States)

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

2016-01-01

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

Family Dynamics and Personal Strengths among Dementia Caregivers in Argentina

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Aaliah G. Elnasseh

2016-01-01

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

Agua potable y saneamiento en la Argentina

OpenAIRE

Auge, Miguel

2007-01-01

Este trabajo fue presentado originalmente en el Foro Regional del Agua, con el título “Problemática del Acceso al Agua Potable y al Saneamiento en Argentina”. Dicho foro, organizado por la Defensoría del Pueblo de la Nación Argentina, se desarrolló en Córdoba, en mayo del 2007.

Assessing Argentina's response to H1N1 in austral winter 2009: from presidential lethargy to local ingenuity.

Science.gov (United States)

Stern, Alexandra Minna; Koreck, Maria Teresa; Markel, Howard

2011-01-01

Argentina experienced a heavy burden of novel H1N1 influenza in austral winter 2009. In early July 2009, Argentina reported more than 1,500 cases and was confronting the highest per capita H1N1 mortality rate in the world. By September 2009, more than 500 people had died of H1N1 in Argentina. Unlike sister countries Chile and Mexico, Argentina's national authorities did not respond by implementing mitigation measures such as public gathering bans and school closures or by issuing broad-based messages about personal hygiene and disease prevention. Around the globe, many observers expressed dismay at this inaction. For example, The Economist scolded the country's leadership for its halting response and seeming apathy to an escalating health crisis. Why did Argentina, a middle-income country with a developed and, in many respects, sophisticated system of health and education, fall short in enacting a national pandemic plan during the 2009 H1N1 outbreak? What can we learn from Argentina's experiences about obstacles and opportunities during a pandemic crisis? This article, based on extensive qualitative research, including document capture, media analysis, and oral history interviews, assesses Argentina's mixed response to H1N1 during austral winter 2009, and adds to a growing body of studies focused on how governments and health systems in the Americas performed during the 2009-2010 H1N1 pandemic. When the first cases of novel H1N1 influenza were identified by the U.S. Centers for Disease Control and Prevention (CDC) in mid-April 2009, Argentina's national health ministry appeared to be prepared. Starting in 2002, primarily in response to the prospect of avian influenza, the health ministry had formulated a preparedness plan and, beginning in 2005, had conducted at least five pandemic simulation exercises. In April 2009, Argentina's health ministry activated its pandemic response plan, triggering the establishment of an executive-level situation room equipped with

The multiple applications of the nuclear techniques in Argentina

International Nuclear Information System (INIS)

Manzini, Alberto C.

2001-01-01

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

Bases teóricas en la conformación de la terapia cognitiva en la Argentina

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Guido Pablo Korman

2011-01-01

Full Text Available El autor reflexiona sobre la aparición de la psicoterapia cognitiva en la Argentina, revisando las bases teóricas que llevan al surgimiento de este modelo y a la posterior fundación de la Asociación Argentina de Terapia Cognitiva. En ese marco recrea las discusiones que se daban entre las asociaciones profesionales en el contexto internacional respecto del rol de la cognición en los tratamientos psicológicos. A través de entrevistas abiertas y recurrentes con los primeros terapeutas cognitivos de la Argentina indaga las vivencias teóricas y personales que contribuyen a su desarrollo de este ámbito. A su vez describe el peso de autores en el campo de la psicología que contribuyeron al desarrollo de este modelo en la Argentina, como son los casos de Vittorio Guidano, Aaron Beck, Michael Mahoney o Hans Eysenck, entre otros.

Soybean biomass produced in Argentina

DEFF Research Database (Denmark)

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

2009-01-01

Soybean biomass for biodiesel, produced in Argentina amongst other places, is considered by some to reduce greenhouse gas emissions and mitigate climate change when compared with fossil fuel. To ensure that the production of biofuels is ‘sustainable', EU institutions and national governments...... are currently designing certification schemes for the sustainable production of biomass. This paper questions the validity of proposed environmental standards, using the production of Argentine soybean as a case study. The production of soybean production is associated with profound environmental impacts...

English Language Education in Primary Schooling in Argentina

Science.gov (United States)

Porto, Melina

2016-01-01

This article describes public primary English language education in Argentina. I begin with background information about the country and a brief historical overview of education in general, accompanied by a portrait of primary schooling in particular. This overview involves local, political and economic considerations but also international…

Transport of Co-60 from Argentina to abroad

International Nuclear Information System (INIS)

Cesario, R.; Pinamonti, M.

1993-01-01

The Co-60 bearing wastes from the Embalse Nuclear Power Plant, Argentina are transported to Canada, the United States and Mexico. Ocean transportation, terrestrial transportation, air transportation are applied, and the total activity in bulk material shipped reached 2.96x10 17 Bq. (J.P.N.)

Argentina y la bipolaridad Estados Unidos-China: Implicancias de un escenario posible

OpenAIRE

Roberto Miranda

2012-01-01

En el presente siglo Argentina afrontó dos situaciones internacionales bien diferentes. Una fue la ventaja comercial obtenida gracias a la gravitación mundial de Asia y, sobre todo, al vínculo especial con China. Este país representó un punto de apoyo coyuntural. Otra situación fue la marginación de Argentina del poder inversor transnacional por la interposición norteamericana. El escenario posible de una bipolaridad entre Estados Unidos y China no sería una buena noticia para el país sudamer...

NOVEDADES PARA LOS GÉNEROS ANNULOHYPOXYLON E HYPOXYLON (ASCOMYCOTA, XYLARIACEAE EN LA REPÚBLICA ARGENTINA

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Adriana I. Hladki

2009-01-01

Full Text Available Se proponen dos nuevas variedades: Annulohypoxylon moriforme var. macrosporum e Hypoxylon investiens var. magnisporum; se citan por primera vez para la Argentina los siguientes taxones: Annulohypoxylon nitens, Hypoxylon crocopeplum, H. subrutilum e H. rubiginosum var. microsporum. Se presenta una clave dicotómica de las especies hipoxiloides halladas hasta ahora en la Argentina.

Key to the subfamilies, tribes and genera of adult Dytiscidae of Argentina (Coleoptera: Adephaga Clave para los adultos de las subfamilias, tribus y géneros de Dytiscidae de la Argentina (Coleoptera: Adephaga

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María L. Libonatti

2011-12-01

Full Text Available Dytiscids constitute the world's most speciose family of water beetles, whose identifi cation in Argentina is problematic with current keys. In this work, a key (both in English and Spanish to the eight subfamilies, 16 tribes and 31 genera of adult Dytiscidae of Argentina is presented. The key was constructed using stable qualitative characters of the external morphology and chaetotaxy, easily visualizable and interpretable. Characters such as size and shape of the body, color pattern and geographic distribution were also used. Illustrations of a great number of morphological structures as well as SEM micrographs were included to aid in the interpretation of the text. One subfamily (Hydrodytinae and fi ve genera (Agaporomorphus Zimmermann, Bidessodes Régimbart, Hydrodytes Miller, Queda Sharp and an unpublished genus of the subfamily Laccophilinae are cited for the fi rst time for Argentina.Los ditíscidos constituyen la familia más numerosa de escarabajos acuáticos a nivel mundial, cuya identifi cación en la Argentina resulta problemática con las claves actuales. En este trabajo, se presenta una clave (en inglés y español para los adultos de las ocho subfamilias, 16 tribus y 31 géneros de Dytiscidae de la Argentina. La clave fue construida priorizando la inclusión de caracteres cualitativos estables de la morfología externa y quetotaxia, fácilmente visibles e interpretables. También, se utilizaron caracteres como el tamaño y la forma del cuerpo, el patrón de coloración y la distribución geográfi ca. Se incluyeron ilustraciones de un gran número de estructuras morfológicas y fotografías tomadas con el microscopio electrónico, para ayudar a la interpretación del texto. Se citan, por primera vez para la Argentina, una subfamilia (Hydrodytinae y cinco géneros (Agaporomorphus Zimmermann, Bidessodes Régimbart, Hydrodytes Miller, Queda Sharp y un género inédito de la subfamilia Laccophilinae.

Ayurveda in Argentina and other Latin American countries

Science.gov (United States)

Berra, Jorge Luis; Molho, Rosana

2010-01-01

Over the past 20 years the Fundacion Salud de Ayurved Prema Argentina has spread the knowledge of Ayurveda throughout Latin America. The Fundacion is based in Buenos Aires in the Argentine Republic, where it now runs courses in two of the country’s major medical schools - at the School of Medicine of the University of Buenos Aires, and the National University of Cordoba’s School of Medicine. Based on an MoU with Gujarat Ayurveda University, at Jamnagar, Gujarat, the Fundacion has been accredited as a Collaborating Center for teaching, assistance and research in the field of Ayurvedic Medicine in Argentina. This has led to successful missions to other countries in the region where the Fundacion and its associates have been able to start dialogues with governments, and in places hold sizeable courses. The knowledge of Ayurveda is now spreading throughout South and Central America and hardly a country remains untouched by it. PMID:21547054

Industrial integration of the fuel cycle in Argentina

International Nuclear Information System (INIS)

Koll, J.H.; Kittl, J.E.; Parera, C.A.; Coppa, R.C.; Aguirre, E.J.

1977-01-01

The paper describes the power reactor construction programme in Argentina for the period 1976-1985, on the basis of which the nuclear fuel requirements have been determined. Activities connected with the fuel cycle commenced in 1950 in Argentina with the prospection and working of uranium deposits. On the basis of the nuclear power programme described, plans have been drawn up for the establishment of the industrial plants that will be needed to ensure the domestic supply of fuel. The demand for fuel is correlated with the availability of uranium resources and it is shown to be desirable from the technical, economic and industrial point of view to integrate the front end of the fuel cycle, keeping the irradiation aspects and the tail end at the development level. The authors report the progress that has been made in this field and describe current programmes covering prospection, concentrate production, nuclear purification, conversion to uranium dioxide, production of special alloys and fuel element fabrication. (author)

Industrial integration of the fuel cycle in Argentina

International Nuclear Information System (INIS)

Koll, J.H.; Kittl, J.E.; Parera, C.A.; Coppa, R.C.; Aguirre, E.J.

1983-01-01

The power-reactor construction program in Argentina for the period 1976-1985 is described on the basis of which the nuclear-fuel requirements have been determined. Activities connected with the fuel cycle commenced in 1950 in Argentina with the prospection and working of uranium deposits. On the basis of the nuclear power program described, plans have been drawn up for the establishment of the industrial plants that will be needed to ensure the domestic supply of fuel. The demand for fuel is correlated with the availability of uranium resoures and it is shown to be desirable from the technical, economic and industrial point of view to integrate the front end of the fuel cycle, keeping the irradiation aspects and the tail end at the development level. Progress made in this field and current programs covering exploration, concentrate production, nuclear purification, conversion to uranium dioxide, production of special alloys and fuel element fabrication are described

Past, present, and future of neuropsychology in Argentina.

Science.gov (United States)

Fernandez, Alberto Luis; Ferreres, Aldo; Morlett-Paredes, Alejandra; Rivera, Diego; Arango-Lasprilla, Juan Carlos

2016-11-01

To describe the history, current situation, and future challenges of Argentinian neuropsychology. A brief historical description highlighting the most representative authors and publications is made. In addition, a survey was administered to a sample of 135 neuropsychologists practicing neuropsychology in Argentina. The survey explored the current neuropsychological practices among the respondents. Results show that most Argentinian neuropsychologists are: psychologists, women, and work in the clinical field in the country's major cities. Besides, the practice of neuropsychology is mostly unregulated with few training opportunities. Argentinian neuropsychology emerged from neurology in the early twentieth century and slowly progressed until the 1960s when the first organized research groups were created. Since then, a substantial and steady progress followed. However, more training opportunities and a better regulation of the discipline are needed. No similar studies have been conducted in the past, thus becoming one of the first to describe the development of neuropsychology in Argentina.

Conflicting duties over confidentiality in Argentina and Peru.

Science.gov (United States)

Cavallo, Mercedes

2011-02-01

The medical duty of confidentiality represents a key element for the provision of reproductive and sexual health services. In some Latin American countries, such as Argentina and Peru, the legal systems impose—or are interpreted as imposing—on health professionals the duty of confidentiality, but also the duty to report the commission of a public order offense that they know about owing to the practicing of their profession. In these countries, the conflicting duties and the criminalization of abortion cause severe public health and human rights problems when health professionals assist their patients for post-abortion treatment. Typically, patients are deterred from seeking prompt medical care, and their privacy, autonomy, and dignity are violated. A 2010 ruling from the Supreme Court of Argentina and a 2004 ruling from the Inter-American Court of Human Rights emerge as important instruments that grant a more adequate protection of medical confidentiality. © 2010 International Federation of Gynecology and Obstetrics. Published by Elsevier Ireland Ltd. All rights reserved.

Efecto del método de secado en la longevidad y la calidad de las semillas de Bauhinia purpurea.: I. Almacenamiento en Condiciones Ambientales Effect of the drying method on the longevity and quality of seeds from Bauhinia purpurea.: I. Storage under ambient conditions

Directory of Open Access Journals (Sweden)

Marlen Navarro

2007-11-01

Full Text Available Se realizó un experimento con el objetivo de determinar la influencia combinada de diferentes métodos de secado, las condiciones de almacenamiento al ambiente y la edad fisiológica de las semillas de B. purpurea, en la capacidad germinativa y en la calidad de estas. Los tratamientos para el secado fueron: A en las legumbres, B artificial, y C al sol. Se determinó el porcentaje de viabilidad y de germinación, así como el contenido de humedad (CH, con una frecuencia mensual durante un año de almacenamiento; además se registró la temperatura y la humedad relativa (máxima y mínima durante el período evaluado. En el procesamiento de la información se utilizaron análisis multivariados (GLM y Factorial. En los tratamientos A y C se observaron semejanzas en cuanto a la viabilidad y la germinación, aunque las semillas alcanzaron la muerte fisiológica a los siete y nueve meses de permanencia en el almacén, respectivamente. El secado de las semillas con silicagel mostró que la pérdida de la capacidad germinativa siguió un modelo polinomial cúbico, con una marcada tendencia a la linealidad, y al finalizar el estudio fue de 70%. Las diferencias entre el CH de las semillas secadas artificialmente (B y al sol (C permitieron confirmar que la longevidad en B fue dos a cuatro veces mayor que en C. Los factores más influyentes en el ritmo de pérdida de la calidad de las semillas B. purpurea almacenadas al ambiente fueron el contenido de humedad y la edad.A trial was carried out with the objective of determining the combined influence of different drying methods, the storage under ambient conditions and the physiological age of the seeds from B. purpurea, on their germination capacity and quality. The treatments for drying were: A in the pods, B artificial and C under sunlight. The percentage of viability and germination, as well as the moisture content (MC, were determined, with a monthly frequency during a year of storage; in addition the

Volcanic Ash Hazards and Risk in Argentina: Scientific and Social Collaborative Approaches.

Science.gov (United States)

Rovere, E. I., II; Violante, R. A.; Vazquez Herrera, M. D.; Martinez Fernandez, M. D. L. P.

2015-12-01

Due to the absence of alerts or volcanic impacts during 60 years (from 1932, Quizapu-Descabezado Grande -one of the major eruptions of the XX Century- until 1991 Hudson eruption) there was mild remembrance of volcanic hazards in the collective memory of the Argentina citizens. Since then and until April 2015, the social perception changed according to different factors: age, location, education, culture, vulnerability. This variability produces a maze of challenges that go beyond the scientific knowledge. Volcanic health hazards began to be understood in 2008 after the eruption of Chaiten volcano. The particle size of ashfall (concern on epidemiological monitoring. In 2011 the volcanic complex Puyehue - Cordon Caulle eruption produced ashfall through plumes that reached densely populated cities like San Carlos de Bariloche and Buenos Aires. Farther away in South Africa and New Zealand ash plumes forced airlines to cancel local and international flights for several weeks. The fear of another eruption did not wait long when Calbuco volcano started activity in April 2015, it came at a time when Villarrica volcano was also in an eruptive phase, and the SERNAGEOMIN Chile, through the Observatory OVDAS of the Southern Andes, faced multiple natural disasters at the same time, 3 volcanoes in activity, lahars, pyroclastic flows and floods in the North. In Argentina, critical infrastructure, farming, livestock and primary supplies were affected mainly in the western region. Copahue volcano, is increasing unstability on seismic and geochemistry data since 2012. Caviahue resort village, distant only 8 Km. from the active vent happens to be a high vulnerable location. In 2014 GEVAS (Geology, Volcanoes, Environment and Health) Network ARGENTINA Civil Association started collaborative activities with SEGEMAR and in 2015 with the IAPG (Geoethics, Argentina), intending to promote Best Practices in volcanic and geological hazards. Geoscientists and the volcano vulnerable population

Yellow fever vaccine-associated adverse events following extensive immunization in Argentina.

Science.gov (United States)

Biscayart, Cristián; Carrega, María Eugenia Pérez; Sagradini, Sandra; Gentile, Angela; Stecher, Daniel; Orduna, Tomás; Bentancourt, Silvia; Jiménez, Salvador García; Flynn, Luis Pedro; Arce, Gabriel Pirán; Uboldi, María Andrea; Bugna, Laura; Morales, María Alejandra; Digilio, Clara; Fabbri, Cintia; Enría, Delia; Diosque, Máximo; Vizzotti, Carla

2014-03-05

As a consequence of YF outbreaks that hit Brazil, Argentina, and Paraguay in 2008-2009, a significant demand for YF vaccination was subsequently observed in Argentina, a country where the usual vaccine recommendations are restricted to provinces that border Brazil, Paraguay, and Bolivia. The goal of this paper is to describe the adverse events following immunization (AEFI) against YF in Argentina during the outbreak in the northeastern province of Misiones, which occurred from January 2008 to January 2009. During this time, a total of nine cases were reported, almost two million doses of vaccine were administered, and a total of 165 AEFI were reported from different provinces. Case study analyses were performed using two AEFI classifications. Forty-nine events were classified as related to the YF vaccine (24 serious and 1 fatal case), and 12 events were classified as inconclusive. As the use of the YF 17D vaccine can be a challenge to health systems of countries with different endemicity patterns, a careful clinical and epidemiological evaluation should be performed before its prescription to minimize serious adverse events. Copyright © 2014 Elsevier Ltd. All rights reserved.

Ley de matrimonio igualitario y aborto en Argentina: notas sobre una revolución incompleta Egalitarian marriage law and abortion in Argentina: notes on an incomplete revolution

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Milagros Belgrano Rawson

2012-04-01

Full Text Available La ley de "matrimonio igualitario", votada en 2010 por el parlamento argentino, convirtió a este país en el primero de Latinoamérica en legalizar el matrimonio homosexual. Se trata de una victoria para un grupo históricamente discriminado por sus preferencias eróticas y hasta entonces ausente de la legislación. En este contexto, aparentemente auspicioso para la igualdad sexual, considero, sin embargo, que la nueva ley no se corresponde con el orden sexual que regula los cuerpos de las mujeres argentinas. En efecto, desde 1921 el Código Penal argentino tipifica al aborto como un "delito contra la vida" y, pese a ello, cada año unas cien mujeres mueren por abortos clandestinos. En base a esta situación, en este artículo analizaré el desfasaje que encuentro entre las políticas homosexuales y las políticas reproductivas de Argentina. A diferencia de Europa, donde los derechos reproductivos precedieron a las políticas homosexuales, en este país se ha operado lo inverso. Allí, el reconocimiento legal de las parejas de mismo sexo coincide con las medidas impulsadas por otras democracias, tendientes a alcanzar lo que algunos autores denominan ciudadanía sexual. Sin embargo, mientras la Argentina no reconozca el derecho a la interrupción gratuita y segura del embarazo, esta noción, que legitima la aplicabilidad universal de derechos sexuales, seguirá siendo problemática. Considero que sin el derecho a la libre disposición del propio cuerpo, el cual comprende la libertad sexual y el derecho a decidir sobre la gestación, en el actual contexto argentino la ley de matrimonio gay representa un episodio aislado.The Argentine Parliament recently passed the New Equal Marriage Act for same-sex couples, making Argentina the first country in Latin America to legalize this type of union. This act represents a victory for a group historically discriminated for its sexual preferences and until then absent from the national legislation. In this

Los que ponen el cuerpo: el profesor de secundaria en la Argentina actual Aqueles que colocam o corpo: o professor do ensino médio na Argentina hoje Those who put the body: the high school teacher in Argentina today

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Emilio Tenti Fanfani

2010-01-01

Full Text Available El artículo presenta un análisis de los profesores de enseñanza secundaria en la Argentina, tomando como base la existencia de una crisis en el modelo tradicional de la escuela de esta etapa escolar, lo que sugiere que las condiciones de los profesores y los estudiantes han cambiado, como han cambiado otras condiciones sociales, todavía sin que la escuela tenga acompañado a estos cambios. El artículo utiliza los datos del Censo Nacional de Docentes en Argentina entre 1994 y 2004 y los resultados muestran un amplio panorama de trabajo de los profesores ante los desafíos de la escuela secundaria en la Argentina, sobre todo al señalar que es muy difícil de aislar los impactos generados por un profesor, en particular, en la formación de los estudiantes; que los efectos del trabajo docente en la escuela operan conjuntamente a los factores exógenos; que la valorización y las consecuencias de la formación promovida en la escuela a los estudiantes, a veces sólo se produce en tiempo muy distinto del trabajo escolar. Por último, la obra se cierra con la idea de que los estudiantes y sus familias y los propios profesores no se equivocan con respecto a la imagen que representa un buen maestro. Sucede que el problema de la expansión de esta realidad está ligado a las acciones de los sistemas de educación a favor de una expansión de la escolarización, pero sin las condiciones necesarias para ampliar la calidad de la enseñanza.O artigo apresenta uma análise sobre os docentes da escola secundária argentina, tomando como pano de fundo a existência de uma crise do modelo tradicional da escola desta etapa escolar, sugerindo-se que as condições dos docentes e dos alunos têm mudado, como têm mudado as demais condições sociais, sem que, contudo, a escola secundária tenha acompanhado tais mudanças. O artigo utiliza dados do Censo Nacional dos Docentes da Argentina dos anos de 1994 e 2004 e os resultados mostram um amplo pano-rama do

Tobacco point-of-sale advertising in Guatemala City, Guatemala and Buenos Aires, Argentina.

Science.gov (United States)

Barnoya, Joaquin; Mejia, Raul; Szeinman, Debora; Kummerfeldt, Carlos E

2010-08-01

To determine tobacco point of sale advertising prevalence in Guatemala City, Guatemala and Buenos Aires, Argentina. Convenience stores (120 per city) were chosen from randomly selected blocks in low, middle and high socioeconomic neighbourhoods. To assess tobacco point of sale advertising we used a checklist developed in Canada that was translated into Spanish and validated in both countries studied. Analysis was conducted by neighbourhood and store type. All stores sold cigarettes and most had tobacco products in close proximity to confectionery. In Guatemala, 60% of stores had cigarette ads. High and middle socioeconomic status neighbourhood stores had more indoor cigarette ads, but these differences were determined by store type: gas stations and supermarkets were more prevalent in high socioeconomic status neighbourhoods and had more indoor cigarette ads. In poorer areas, however, more ads could be seen from outside the stores, more stores were located within 100 metres of schools and fewer stores had 'No smoking' or 'No sales to minors' signs. In Argentina, 80% of stores had cigarette ads and few differences were observed by neighbourhood socioeconomic status. Compared to Guatemala, 'No sales to minors' signs were more prevalent in Argentina. Tobacco point of sale advertising is highly prevalent in these two cities of Guatemala and Argentina. An advertising ban should also include this type of advertising.

Intervenciones olvidadas: Beatriz Sarlo en la universidad argentina de la posdictadura (1984-1986

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Analía Isabel Gerbaudo

2010-06-01

Full Text Available Este artículo se enmarca en una investigación sobre las intervenciones de los críticos que trabajaron como profesores en la universidad argentina durante la fase inicial de la posdictadura (1984-1986 en las áreas de literatura argentina y teoría literaria. El estudio se centra en sus programas de cátedra —documentos desatendidos tanto por la crítica como por la historia— en diálogo con sus ensayos y entrevistas. Esta presentación gira sobre el programa que en 1984 Beatriz Sarlo arma para la materia “Literatura argentina II” y precisa qué lectura inventa para dicha literatura en relación con la escritura latinoamericana, tanto literaria como crítica.This article is part of a research project about the policies carried out by critics who worked as University teachers in Argentina during the initial stage of the postdictatorial period (1984-1986 in the areas of Argentine Literature and Literary Theory. This project studies their class syllabi—documents which have been overlooked both by criticism and by history—in dialogue with their essays and interviews. This presentation deals with the syllabus which was presented by Beatriz Sarlo in 1984 for her class “Argentine Literature II”, and specifies how she reads that literature in relation with Latin American critical and literary writing.

LOBELIA (CAMPANULACEAE - LOBELIOIDEAE: NUEVAS CITAS Y CLAVE PARA LAS ESPECIES ARGENTINAS

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Jorge G. Chiapella

1997-01-01

Full Text Available Se registra por primera vez en la Argentina la presencia de Lobelia aquatica Cham., L. hassleri Zahlbr. y L. nummularioides Cham. var. prostrata (Zahlbr. E. Wimm., dos especies encontradas anteriormente sólo en la provincia de Misiones, están ahora registradas para Corrientes. La presencia de L. nana L. H.B.K. var. nana en la Argentina también es confirmada. Se proveen descripciones e ilustraciones para L. aquatica y L. nummularioides var. prostrata. Se incluye también una clave para la identificación de las seis especies presentes en el país.

Status of the forensically important genus Ophyra (Diptera: Muscidae in Argentina

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Luciano D. PATITUCCI

2010-01-01

Full Text Available El género Ophyra Robineau-Desvoidy es un grupo de múscidos necrófagos distribuidos en los climas cálidos de todo el mundo. La información aquí presentada se basa en la recopilación de datos de distribución, obtenida a partir del material de diferentes colecciones y bibliografía para la Argentina. Ophyra albuquerquei Lopes, Ophyra capensis (Wiedemann, Ophyra chalcogaster (Wiedemann y Ophyra solitaria Albuquerque se registraron por primera vez para el país. Se presenta una clave para las especies argentinas. Se discuten los datos biológicos y forenses de las distintas especies.

The text of the instruments connected with the Agency's assistance to Argentina in establishing a research and isotope production reactor project

International Nuclear Information System (INIS)

1995-01-01

The Agreement between the Republic of Argentina, the Federative Republic of Brazil, the Brazilian-Argentine Agency for Accounting and Control of Nuclear Materials and the International Atomic Energy Agency for the Application of Safeguards came into force on 4 March 1994. As a result of the coming into force of the aforesaid Agreement for Argentina, the application of safeguards under the Project Agreement of 2 December 1964 between Argentina and the IAEA in connection with the Agency's assistance to Argentina in establishing a research and isotope production reactor project has been suspended

Formosa: tierra prometida-tierra arrasada. La Argentina de los márgenes (1884-1955)

OpenAIRE

Girbal Blacha, Noemí

2014-01-01

In times of Modern Argentina (1880 -1930) marginality is part of the agro- export model; structured around Buenos Aires port and the Pampas livestock-cereal, the recipient of massive immigration, growing urbanization and foreign investment concentration. Marginality does not always mean isolation. This is the case of Argentinean Gran Chaco situated in northeastern Argentina, crossed by 3 railways and major waterways, which communicate with the powerful metropolitan littoral. Formosa, borderin...

Wind power in Argentina: Policy instruments and economic feasibility

International Nuclear Information System (INIS)

Recalde, M.

2010-01-01

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

The "Private School Advantage" in Argentina

OpenAIRE

Gustavo E. Fischman

2001-01-01

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

¿Por qué no la Segunda República Argentina?

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Manuel ALCÁNTARA SÁEZ

2009-11-01

Full Text Available RESUMEN: El autor analiza en este artículo el proceso de Reforma Constitucional que se está desarrollando en Argentina. Teniendo en cuenta la coyuntura actual del régimen político, el desarollo de este proceso de reforma y los cambios previstos que van a resultar de esta «Refundación de la República» el autor apunta las posibilidades y problemas que estos datos permiten vislumbrar.ABSTRACT: In this article, the author analyzes the present process of Constitutional Reform in Argentina. Studying the current moment of argentinian political regime, the development of this reform process and possible changes of this «Republic Refoundation» the author points out the possibilities and problems that this information indicates.

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

Energy Technology Data Exchange (ETDEWEB)

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

2009-07-01

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

Fungal flora of the digestive tract of Triatoma infestans (Hemiptera: Reduviidae from Argentina Flora fúngica de tractos digestivos en Triatoma infestans (Hemiptera: Reduviidae en Argentina

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G. A. Marti

Full Text Available A survey of the fungal microbiota of the digestive tract of Triatoma infestans (Klug (Hemiptera: Reduviidae adults was carried out. Insects captured in the field from different provinces in Argentina, as well as individuals reared in artificial colonies, were used for dissection. Axenic cultures of the fungal species were identified and were deposited with mycological collections at La Plata , Argentina. A total of 33 fungal species, with the exception of three that were mycelia sterilia, belonging to 11 genera were identified. Thirty two species belonged to Ascomycota (Eurotiomycetes and Sordariomycetes and one to Zygomycota (Zygomycetes. The genera with the greatest number of species were Penicillium (15, Aspergillus (5, and Cladosporium (2. Among the isolated fungi, some of the species were entomopathogenic or pathogens of humans and other animals.En el presente estudio se realizó un relevamiento de la flora fúngica microbiana en tractos digestivos de adultos de Triatoma infestans (Klug (Hemiptera: Reduviidae. Se disecaron insectos capturados del campo en diferentes provincias Argentinas, así como también se utilizaron individuos de una colonia artificial. Fueron realizados cultivos axénicos de las especies fúngicas aisladas, los que fueron identificados y luego depositados en las colecciones de hongos entomopatógenos del CEPAVE La Plata , Argentina. Fueron identificadas 33 especies fúngicas perteneciente a 11 géneros. Treinta y dos especies pertenecen a Ascomycota (Eurotiomycetes y Sordariomycetes y una a Zygomycota (Zygomycetes. Los géneros con mayor número de especies fueron Penicillium (15, Aspergillus (5, y Cladosporium (2. Entre los aislamientos fúngicos, algunas de las especies encontradas son entomopatogénicas o patógenas de humanos y otros animales.

A politica nuclear da Argentina e do Brasil : Desenvolvimento, nao-proliferacao e democratizacao

OpenAIRE

澤田, 眞治

1994-01-01

Este artigo e uma tentativa de analisar o desenvolvimento da politica da energia nuclear da Argentina e do Brasil, com relacao ao regime internacional de naoproliferacao das armas nucleares. Dado o fato de que ambos os paises da America do Sul recusaram a assinatura do TNP(Tratad0 sobre Nao-Proliferacao das Armas Nucleares), em razao do carater discriminatorio de inspecao, a Argentina e o Brasil estavam sendo considerado os estados duvidossos que potencialmente teriam a bomba atomica. A despe...

La regulación de los servicios de electricidad en Argentina y Brasil (1890-1962 Electric utility regulation in Argentina and Brazil (1890-1962

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Alexandre Macchione Saes

2012-08-01

Full Text Available El artículo analiza la evolución de la regulación del sector eléctrico en Argentina y Brasil entre 1890 y 1960. Desde la instalación de las primeras usinas eléctricas a fines del siglo diecinueve hasta los años treinta, el control de las empresas concesionarias estuvo a cargo de las autoridades municipales en ambos países. No obstante, la similar estructura de los sistemas eléctricos en Argentina y en Brasil, la participación del estado en la regulación de este sector estratégico para el desarrollo económico, se produjo en diferentes coyunturas. Como resultado de la crisis de 1930, el gobierno brasileño transformó los principios jurídicos que reglamentaban la gestión de la electricidad aplicando un criterio de regulación discrecional; mientras que el estado argentino intervino una década más tarde, nacionalizando las empresas. Mediante la comparación de las trayectorias regulatorias en ambos países, se identifican las divergencias en las políticas eléctricas y su impacto en los sistemas eléctricos en los años de la segunda posguerra.This article compares the evolution of electric utility regulation in Argentina and Brazil between 1890 and 1960. From the installation of electrical systems in the 19th century until the 1930s, electrical utility companies were controlled by the local authorities in both countries. The structure of electrical systems was similar in Argentina and Brazil, however the state regulation of electric utilities took place at different times. As a result of the 1930's crisis, the Brazilian government introduced a new legal approach by applying a discretionary regulation. On the other hand, the Argentinean government intervened one decade later, nationalizing the companies. By comparing both regulatory trajectories, the divergences as well as the effects of each policy on the electrical utility systems in the second postward period, are identified.

State regulation of nuclear sector: comparative study of Argentina and Brazil models

International Nuclear Information System (INIS)

Monteiro Filho, Joselio Silveira

2004-08-01

This research presents a comparative assessment of the regulation models of the nuclear sector in Argentina - under the responsibility of the Autoridad Regulatoria Nuclear (ARN), and Brazil - under the responsibility of Comissao Nacional de Energia Nuclear (CNEN), trying to identify which model is more adequate aiming the safe use of nuclear energy. Due to the methodology adopted, the theoretical framework resulted in criteria of analysis that corresponds to the characteristics of the Brazilian regulatory agencies created for other economic sector during the State reform staring in the middle of the nineties. Later, these criteria of analysis were used as comparison patterns between the regulation models of the nuclear sectors of Argentina and Brazil. The comparative assessment showed that the regulatory structure of the nuclear sector in Argentina seems to be more adequate, concerning the safe use of nuclear energy, than the model adopted in Brazil by CNEN, because its incorporates the criteria of functional, institutional and financial independence, competence definitions, technical excellence and transparency, indispensable to the development of its functions with autonomy, ethics, exemption and agility. (author)

Mudanças institucionais e desempenho da produção de milho e soja no Brasil e na Argentina Institutional changes and the performance of the production of soy and corn in Brazil and Argentina

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Eduardo Luis Leão de Sousa

1999-12-01

Full Text Available As mudanças no ambiente institucionais e seus efeitos sobre o desempenho recente da produção de milho e soja no Brasil e Argentina são os objetivos deste artigo, que tem como referencial teórico a Nova Economia das Instituições. Importantes diferenças marcam o desempenho da produção de grão nestes países, apesar do Brasil e Argentina terem seguido o mesmo modelo de desenvolvimento baseado no processo de substituição de importação e economia fechada. Observa-se também que além das condições edáfo-climáticas que trazem uma vantagem inicial para a produção de grãos na Argentina, de uma forma geral, este país, em função da sua menor população e menor absorção interna de produtos, sempre teve uma maior inserção no mercado internacional.This paper examines the role of the institutions that affected Brazilian and Argentinean grain agroindustrial systems in this decade, using the New Institutional Economics as theoretical reference. Important differences mark the performance of the production of grains in these countries, despite Brazil and Argentina having followed the same model of development based on the process of import substitution and a closed economy. In addition to the edapho-climatic factor which brings initial advantages to the production of grains in Argentina, in general, this country has always had greater insertion in the international market due to its smaller population. The changes in the institutional environment and its effects on the recent performance of soybean and corn production in Brazil and Argentina are the objective of this work.

Argentina : Gender Equity in the Private Sector

OpenAIRE

World Bank

2010-01-01

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

ESTUDIO ARQUEOHISTÓRICO DEL REGISTRO VÍTREO EN SITIOS MINEROS (MENDOZA, ARGENTINA (Archaeohistorical Study of the Vitreous Record in Mining Sites (Mendoza, Argentina

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Osvaldo Sironi

2017-06-01

Full Text Available Se presentan los resultados de los análisis de los registros vítreos de los sitios Minas Paramillos Sur y Mina La Atala, localizados en la Reserva Natural Villavicencio y Divisadero Largo. A partir del conocimiento de la materialidad cultural vítrea de esta región, se evidencian patrones de consumo vinculados a diversos tipos de bebidas y productos medicinales entre la clase trabajadora minera de la Precordillera de Mendoza (Argentina. ENGLISH: Results of the analysis of the vitreous record from Minas Paramillos Sur and Mina La Atala are presented. These sites are located in the Villavicencio and Divisadero Largo natural reserves. Knowledge of the vitreous cultural material of this region allows us to show consumption patterns of various types of beverages and medicines among the mining working class of the Mendoza Precordillera, Argentina.

El principio precautorio y el caso de los organismos genéticamente modificados en Argentina El principio precautorio y el caso de los organismos genéticamente modificados en Argentina

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Silvina Gernaert Willmar

2003-01-01

Full Text Available Since it inception, at the Rio de Janeiro summit in 1992, the precautionary principle has evolved in terms of its interpretation and application. Both have made some progress in relation to genetically-modified organisms (GMO and its consequences for the domestic and international markets in Argentina. As regards the normative framework, Argentina does not dispose yet of well-established rules as to how the principle should be applied. This opens up the debate about the political standing of the principle. As for as international trade is concerned, Argentina is an important GMO producer but, when incertitude is the key element regarding the application of precaution, crucial discrepancies about the possibility of transforming the principle in to a political tool, rather than in to a legal tool emerge. In the case of the municipal ordinance on compulsory identification of genetically-modified food, the lack of experience about conditions of application of the precautionary principle might have led to justify it on the grounds of European directives.Desde su esbozo en la Declaración de Río de Janeiro en 1992, el principio precautorio ha ido evolucionando en cuanto a su interpretación y aplicación. En la Argentina, ambos han progresada con relación al tema de los Organismos Genéticamente Modificados (OGM y de sus implicaciones para el comercio interno internacional. En cuanta al marco normativo argentino, no existe aún una práctica clara que especifique las condiciones de aplicación del principio y esta carencia abre la discusión sobre su relevancia política. En relación can el comercio exterior la Argentina es un productor importante de productos derivados de los OGM, y, cuando la incertidumbre prima como rasgo del principio, surgen discrepancias relativas a la posibilidad de que la aplicación de la precaución pueda transformarse básicamente en una herramienta política más que en un instrumento de regulación legal. En el estudio

First record of Talaromyces udagawae in soil related to decomposing human remains in Argentina.

Science.gov (United States)

Tranchida, María C; Centeno, Néstor D; Stenglein, Sebastián A; Cabello, Marta N

2016-01-01

The morphologic features of Talaromyces udagawae Stolk and Samson are here described and illustrated. This teleomorphic Ascomycota fungus was isolated from soil obtained in Buenos Aires province (Argentina) from beneath a human cadaver in an advanced state of decomposition. After washing and serial dilution of the soil along with moist-chamber techniques for fungal cultivation, T. udagawae formed very restricted colonies of bright yellow color on different growth media with 8-ascospored asci. The ascospores were ellipsoidal and ornamented. The anamorphic state was not observed. Molecular-genetic techniques identified the species. The present record is the first of the species in Argentina, pointing it as a tool to identify soils where cadaver decomposition occurs. Copyright © 2015 Asociación Argentina de Microbiología. Publicado por Elsevier España, S.L.U. All rights reserved.

Clinical and Demographical Characteristics of Patients with Medication Overuse Headache in Argentina and Chile

DEFF Research Database (Denmark)

Shand, Beatriz; Goicochea, Maria Teresa; Valenzuela, Raul

2015-01-01

population was formed by 240 MOH subjects, 110 from Chile and 130 from Argentina, consecutively attending the local headache centres. In each centre, specifically trained neurologist interviewed and confirmed the diagnosis according to the ICHD-II criteria. A detailed history was collected on an electronic......BACKGROUND: Data on the characteristics of Medication Overuse Headache (MOH) in Latin American (LA) are scarce. Here we report the demographic and clinical features of the MOH patients from Argentina and Chile enrolled in the multinational COMOESTAS project in the period 2008-2010. METHODS: The LA......, where it affects mostly women, in the most active decades of life. Some differences emerge as regards the demographic and clinical characteristics of MOH in this population as compared to Europe or Northern America. What seems more worrying about MOH in Argentina and Chile is that most patients overuse...

Chondrichthyans of the San Matías Gulf, Patagonia, Argentina Los condrictios del Golfo San Matías, Patagonia, Argentina

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María R PERIER

2011-12-01

Full Text Available The San Matías Gulf (SMG; 41°- 42° S; 64°- 65° W is the largest gulf in Northern Patagonia, Argentina. Up to date, the chondrichthyan fauna of this area has not been reported. Therefore, the aim of this work is to provide a list with species presence and biological characteristics of the chondrichthyans recorded in SMG during the last 30 years. A total of 13 sharks distributed in 11 families, 19 skates and rays distributed in six families, and one holocephalan have been so far recorded in SMG. From the zoogeographical point of view, this chondrichthyan fauna is a mixed assemblage of species typically found in the Argentinean and Magellanean Provinces. The holocephalan Callorhinchus callorynchus is the most landed chondricthyan of the local fishery. With it, five sharks and seven skates are also exploited.El Golfo San Matías (SMG; 41°- 42° S - 64°-65° O se encuentra ubicado en el norte de la Patagonia, Argentina. Hasta la fecha no se cuentan con reportes de la fauna de condrictios de esta zona. Por lo tanto, el objetivo de este trabajo es proporcionar una lista de la presencia y las características biológicas de los condrictios registrados en el SMG durante los últimos 30 años. Un total de 13 tiburones distribuidos en 11 familias, 19 batoideos distribuidos en seis familias y un holocefalo han sido reportados para la zona. Desde el punto de vista zoogeográfico, el SMG presenta un ensamble de especies pertenecientes a las Provincias Magallánica y Argentina. El holocefalo Callorhinchus callorynchus es el condrictio más desembarcado de la pesquería local. Con menor importancia son explotadas comercialmente, cinco especies de tiburones y siete de rayas.

Record of Diaphorina citri (Hemiptera: Psyllidae) in North West Argentina

OpenAIRE

Augier, Lucrecia; Gastaminza, Gerardo; Lizondo, Marcelo; Argañaraz, Manuel; Willink, Eduardo

2006-01-01

Se amplía la distribución de Diaphorina citri Kuwayama (Hemiptera: Psyllidae) para el Noroeste Argentino.The distribution of Diaphorina citri Kuwayama (Hemiptera: Psyllidae) is expanded to North West Argentina.

Un aporte al debate sobre la convergencia en Argentina: la importancia de los cambios estructurales

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Alberto José Figueras

2014-09-01

Full Text Available El análisis del crecimiento económico de las provincias argentinas, signado por su comportamiento idiosincrático, es un valioso aporte a los estudios de convergencia regional. En el presente trabajo, se propone un análisis de Convergencia Beta y Sigma de las provincias argentinas para el periodo 1970-2007, con variables que aproximan el capital humano, las economías de escala, la inversión y la política fiscal. Adicionalmente, se intenta aislar el efecto de shocks sobre el crecimiento económico de provincias con diferentes estructuras productivas, y sus consecuencias sobre la convergencia/divergencia regional en Argentina.******Since Argentinian provinces’ economic growth is determined by idiosyncratic behaviour, its analysis is a valuable contribution to the studies on regional convergence. This paper takes on an analysis of Sigma and Beta convergence in Argentinian provinces for the 1970 -2007 period, with variables that include human capital, economies of scale, investment and fiscal policy. It also focuses on the effect structural changes exert upon provinces’ economic growth -with their different productive structures- and its impact on the regional convergence/divergence in Argentina.

Epidemiology of Epstein-Barr virus-associated pediatric lymphomas from Argentina.

Science.gov (United States)

Chabay, Paola; Preciado, María Victoria

More than 90% of the population is infected by Epstein-Barr virus (EBV), which has sophisticatedly evolved to survive silently in B cells for the life of infected individuals. However, if the virus-host balance is disturbed, latent EBV infection could be associated with several lymphomas. The age at primary infection varies substantially worldwide, and exposure to EBV is likely to be due to socioeconomic factors. In Argentina, EBV infection is mostly subclinical and 90% of patients are seropositive by the age of 3 years; therefore, its epidemiological characteristics resemble those of an underdeveloped or developing population. EBV-positive Hodgkin lymphoma (HL) in young adults from developed populations has been attributed to delayed primary EBV infection as suggested by the association with recent mononucleosis development. EBV-associated Burkitt lymphoma and Hodgkin lymphoma in children from Argentina display frequencies similar to those observed in developed countries, whereas EBV presence in pediatric diffuse large B-cell lymphoma is slightly increased compared to those populations. However, EBV presence is statistically associated particularly with patients < 10 years of age in all three entities. Therefore, a relationship between low age of EBV seroconversion and B-cell lymphoma development risk could be suggested in children from Argentina. Copyright © 2015 Hospital Infantil de México Federico Gómez. Publicado por Masson Doyma México S.A. All rights reserved.

Consideraciones y recomendaciones prácticas para mejorar la calidad de la madera seca de Acacia mangium Willd

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Carolina Tenorio Monge

2011-05-01

Full Text Available Acacia mangium, es actualmente, una de las especies más utilizadas en plantaciones comerciales en Costa Rica. Sin embargo, los usos de su madera han sido restringidos debido a que presenta algunos problemas durante el proceso de secado artificial, entre los que destaca la alta variabilidad del contenido de humedad final, la alta incidencia de defectos y la presencia de bolsas de humedad. Se han investigado las causas de esta variación y del desarrollo de estos defectos y se ha encontrado que los principales factores que influyen son: la alta variabilidad en el contenido de humedad inicial de la madera, la procedencia de la materia prima, la altura, la posición radial de la tabla al extraerla del árbol y el uso de programas de secado inadecuados para la especie. Asímismo se dan una serie de recomendaciones a considerar antes de iniciar el secado artificial con el fin de lograr una mejor calidad de madera en cuanto a la variabilidad del secado y lapresencia de defectos.

First record of Aleiodes laphygmae (Hymenoptera: Braconidae) for Argentina and its association with larvae of Spodoptera eridania (Lepidoptera: Noctuidae)

OpenAIRE

Valverde, Liliana; Berta, D. Carolina; Gomez, Marcelo Geronimo

2012-01-01

Se reporta por primera vez para Argentina Aleiodes laphygmae (Viereck) (Hymenoptera: Braconidae) y como parasitoide de larvas de Spodoptera eridania (Stoll) (Lepidoptera: Noctuidae), en plantaciones de soja en la provincia de Tucumán (Argentina). Se provee información biológica como hábitos, hospedadores y distribución.Aleiodes laphygmae (Viereck) (Hymenoptera: Braconidae), is reported for the first time for Argentina. It is also reported parasitizing larvae of Spodoptera eridania (Stoll) (Le...

A new species of Tribonium Saussure, 1862 from the Province of Misiones, Argentina (Blattaria, Blaberidae, Zetoborinae).

Science.gov (United States)

Crespo, Francisco Antonio; Valverde, Alejandra Del Carmen; Iglesias, Mónica Sandra

2015-03-23

Tribonium rothi sp. n. is described from Argentina, whereas T. neospectrum and T. conspersum are recorded for the first time for that country, and their genitalia is redescribed. Femur and tibial spine armature are given and Tribonium is compared with Schistopeltis. A key to identify species of the genus Tribonium recorded in Argentina is provided.

Global Microlending in Education Reform: Enseñá Por Argentina and the Neoliberalization of the Grassroots

Science.gov (United States)

Friedrich, Daniel S.

2010-01-01

This article examines the workings and underlying assumptions behind Enseñá por Argentina (Teach for Argentina), one specific program that takes part in the larger and expanding network of Teach for All, by thinking about the ways in which a global push for redefining teaching and teacher education encounters local characteristics and histories,…

PyMEs y crecimiento económico : Estado de situación de Argentina y su comparación con Brasil y Canadá

OpenAIRE

De Simone Martin, Mara

2017-01-01

Descripción del estado de situación en Argentina, Brasil y Canadá respecto de la contribución de las PyMES al PBI y Empleo. Organismos o políticas de Apoyo a las PyMES. Incubadoras de Negocios. Durante los últimos 15 años, Argentina muestra muy pocas PyMES y bajo PBI comparada con Brasil y Canadá aún cuando se contemplen paralelismos geopolíticos, similitudes en PBI per Cápita (Argentina-Brasil) o PEA (Argentina-Canadá), entre otras muchas otras variables. Argentina no cuenta con un...

Políticas turísticas y peronismo. Los atractivos turísticos promocionados en Visión de Argentina (1950

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Troncoso, Claudia

2004-01-01

Full Text Available The aim of this paper is to examine the discursive strategies articulated with the construction of a tourist Argentina (attractions, destinations, valuations and tourist practices within the context of the first peronist government. We are interested in analyzing, in general terms, the configuration of a tourist Argentina, in relation to the construction of objects and places’ attractiveness during the peronist administration. Specifically, we examine the discursive practices involved in the construction of a set of tourist images included in a tourism promotion document elaborated by an official department. In first place, we explore the development of both institutions and tourist practices in Argentina during that period. In second place, we analyze An Outline of Argentina (Visión de Argentina, 1950, a publication released in 1950 by General Management of National Parks and Tourism.

The "Private School Advantage" in Argentina

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Gustavo E. Fischman

2001-08-01

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

NUEVAS CITAS DE ASCLEPIADACEAE PARA ARGENTINA

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Sergio A Cáceres Moral

1989-01-01

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

VizieR Online Data Catalog: Uranometria Argentina catalog of bright southern stars (Gould, 1879)

Science.gov (United States)

Gould, B. G.

2010-07-01

In 1879 Benjamin Apthorp Gould published in Buenos Aires, Argentina, the Uranometria Argentina catalog of 7756 stars south of declination +10 degrees. This included all those stars he considered magnitude 7 or brighter and some fainter stars which are close companions to brighter stars or to each other and have combined magnitude 7 or brighter. Star positions are in 1875 coordinates, and constellation boundaries also in 1875 coordinates were defined within the aforementioned declination range. With only a few small changes these were incorporated into the boundaries adopted by the IAU in 1930 and subsequently universally accepted. In terms of accurate photoelectric magnitude measurements the Uranometria Argentina is nearly complete to magnitude 6.5 in its declination range. In each constellation the individual stars considered to be magnitude 7 and brighter were numbered in sequence of increasing right ascension in 1875 coordinates, except that in a few cases this sequence was somewhat adjusted so that stars close together could be listed on adjacent lines of text. The numbering system is analogous to that in the Flamsteed Catalogus Brittanicus and now widely used. Star numbers from the Uranometria Argentina rarely appear in the 21st century despite the potential utility of their use. They were included in the American Ephemeris and Nautical Almanac until 1978, and in the FK5 catalog until 1999, always with the letter G following the number in the Uranometria Argentina catalog. This serves to distinguish Flamsteed numbers with no following letters from Gould numbers, and is utilized in this presentation and recommended for general use. The file catalog.dat includes every star in the original Uranometria Argentina. In the original the constellations were presented in sequence of increasing distance from the south pole and numbered accordingly. For the convenience of 21st century astronomers the constellations are presented here by alphabetical sequence in

Solar events and their influence on the interplanetary medium

Science.gov (United States)

Joselyn, Jo Ann

The Workshop on Solar Events and Their Influence on the Interplanetary Medium very successfully met its goal “to foster interactions among colleagues, leading to an improved understanding of the unified relationship between solar events and interplanetary disturbances.” Organized by the National Oceanic and Atmospheric Administration Space Environment Laboratory and funded by the national Aeronautics and Space Administration (NASA) Solar Maximum Mission Principal Investigators and the Space Environment Laboratory, this meeting was held held September 8—11, 1986, in Estes Park, Colo. A total of 94 scientists, including representatives from Argentina, Germany, Japan, France, Scotland, England, Australia, Poland, Israel, Greece, China and the United States attended. A novel meeting schedule was adopted, with no formal presentations other than a keynote address by Rainer Schwenn of the Max Planck Institut fur Aeronomie (Federal republic of Germany), entitled “Transients on the Sun and Their Effects on the Interplanetary Medium: An Interdisciplinary Challenge” a Gordon A. Newkirk Memorial talk on “Early History of the Coronagraph” by John Eddy of the University Corporation for Atmospheric Research Office of Interdisciplinary Earth Studies (Boulder, Colo.); and introductory and summary statements by working group leaders. Instead, there were three working groups, which met either independently or with one of the other groups according to a prearranged plan. Suggested roundtable discussion topics were distributed in advance to the members of each group, but primarily, each group was expected to think of questions for the other groups and respond to requests for information from them. As may be expected, for some topics there was group consensus. Other topics were contentious.

Television Food Advertising to Children in Argentina | CRDI - Centre ...

International Development Research Centre (IDRC) Digital Library (Canada)

This research project will first analyze the current regulatory framework around television food advertising in Argentina, determining the amount and ... the relationship between exposure to television advertising and childhood obesity among Argentinean children, and promote the changes required to reduce their exposure ...

Solar drying of sweet pepper and garlic using the tunnel greenhouse drier

Energy Technology Data Exchange (ETDEWEB)

Condori, M.; Echazu, R.; Saravia, L. [Universidad Nacional de Salta, Inst. de Investigacion en Energia no Convencional, Salta (Argentina)

2001-04-01

A new low cost design for a forced convection greenhouse drier, the Tunnel Greenhouse Drier, has been built and tested. Its main parts are: a plastic greenhouse cover containing a drying tunnel made with transparent plastic walls; a line of carts with several stacked trays containing the product and moved manually inside the tunnel and an electrical fan that moves the hot air from the greenhouse into the tunnel. The trays receive solar radiation through the transparent walls, increasing the product temperature. Heat losses from the tunnel are low since the greenhouse temperatures are higher than ambient temperature. The main advantages of this drier are: (a) an almost continuous production since some carts with dried product come out of the tunnel every day, while the same amount of fresh product is introduced by the other tunnel extreme; (b) lower labor cost since the product handling is partly mechanized; (c) a conventional heater can be easily installed to keep a constant production rate; (d) the energy consumption is lower than in other drier types; (e) the installation can be used as a greenhouse for small production when it is not used as a drier. The prototype was built in the north of Argentina, and red sweet pepper and garlic were used as load. The drier thermal efficiency, considered as a solar collector, was calculated using the measured experimental data, and a linear relation between the drier temperature and the solar radiation was obtained. (Author)

Difilobotriosis humana: Un caso en área no endémica de la Argentina Human diphyllobothriosis: A case in a non-endemic area of Argentina

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Diego E. Cargnelutti

2012-02-01

Full Text Available La difilobotriosis es una parasitosis intestinal causada por la infección de cestodos del genero Diphyllobothrium. En la Argentina, la Patagonia Andina es considerada una zona endémica para esta parasitosis. La infección por Diphyllobothrium latum no ha sido previamente notificada en la provincia de Mendoza; en este trabajo comunicamos un caso de esta parasitosis que fue confirmada por el análisis de las características morfológicas de los huevos eliminados con la materia fecal de un paciente infectado. Se destaca la necesidad de información y capacitación de los profesionales de la salud en el diagnóstico y tratamiento de parasitosis no endémicas.Diphyllobothriosis is an intestinal parasitosis caused by cestodes infection of the genus Diphyllobothrium. In Argentina, the Andean Patagonia is considered an endemic area for this parasitosis. Diphyllobothrium latum infection has not been previously reported in the province of Mendoza, Argentina. We are now reporting then the first case. Diphyllobothriosis was confirmed by examination of morphologic characteristics of the eggs eliminated in the patients' feces. These results suggest the requirement of a more specific training of health workers in the diagnosis and treatment of non endemic parasitosis. We want to emphasize the need of health workers' education on diagnosis and treatment of endemic and non-endemic parasitosis.

“Estudios de género”: dos mujeres en pugna en la crítica literaria argentina

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Marcela Croce

2011-10-01

Full Text Available Resumo: O presente trabalho estuda a carreira de Beatriz Sarlo e Josefina Ludmer, as duas mulheres mais representativas da crítica literária na Argentina das três últimas décadas do século XX. No caso de Sarlo, sua tarefa tem como foco o rastreamento de questões sociopolíticas nos textos, mudando de direção progressivamente para os estudos culturais nos anos 1990. Ludmer, ao contrário, começou com uma perspectiva estruturalista que se foi modificando embora sempre privilegiando os aspectos imanentes e as significações múltiplas dos textos. Ambas preferiram a crítica da literatura argentina, fornecendo um modelo de incorporações teóricas e perspectivas críticas, além de duas figuras contrapostas no que diz respeito à intervenção política da crítica.Palavras-chave: Beatriz Sarlo; Josefina Ludmer; crítica literária; Argentina.Resumen: El presente trabajo estudia la carrera de Beatriz Sarlo y Josefina Ludmer, las dos mujeres más representativas en la crítica literaria de la Argentina en las tres últimas décadas del siglo XX. En el caso de Sarlo, su tarea se enfoca en el rastreo de cuestiones sociales y políticas en los textos, para virar progresivamente a los estudios culturales en los años ’90. Ludmer, en cambio, comenzó con una perspectiva estructuralista que se fue ajustando aunque siempre privilegiando los aspectos inmanentes y las significaciones múltiples de los textos. Ambas han preferido la crítica de la literatura argentina y proveen un modelo de incorporaciones teóricas y perspectivas críticas, además de dos figuras contrapuesta en lo que atañe a la intervención política de la crítica. Palabras-clave: Beatriz Sarlo; Josefina Ludmer; crítica literaria; Argentina.Keywords: Beatriz Sarlo; Josefina Ludmer; literary criticism; Argentina.

[More than a century of international immigration into Argentina].

Science.gov (United States)

Celton, D E

1995-01-01

"From the second half of the 19th century, Argentina was, along with the United States and Brazil, one of the main destinations that attracted European emigration to America.... The arrival of more that six million people between 1869 and 1930 resulted in radical changes in the socioeconomic structure of the country. After the crisis of the 1930s the impact of a development plan based on the export of agricultural products waned and the economic growth accompanied with political instability generated a slowing decline of migratory flows, despite a new wave between 1945 and 1952. The decrease of international migration comes along with an important change in the composition by places of origin.... The article analyses the successive migratory policies of Argentina's government as well as the migrants' spatial distribution and their incorporation in the labor market." (SUMMARY IN ENG AND SPA) excerpt

Mycobacterioses in dogs and cats from Buenos Aires, Argentina.

Science.gov (United States)

Barandiaran, Soledad; Martínez Vivot, Marcela; Falzoni, Elvira; Marfil, María J; Pérez Tort, Gabriela; Rovatti, Paula; Fernández, Mónica; Iachini, Ricardo; Satek, Fernanda; Duchene, Adriana; Zumárraga, Martín J

2017-09-01

Mycobacterioses can produce nonspecific clinical signs in dogs and cats that make diagnosis difficult. Furthermore, the full characterization of mycobacterial agents is not always possible or practical. We characterized mycobacteria detected through cytology in 12 dogs and 7 cats with generalized clinical signs from the province of Buenos Aires in Argentina. In dogs, molecular testing confirmed the presence of Mycobacterium avium subsp. hominissuis (MAH) in 8 cases and M. fortuitum in 1 case. All dogs were Miniature Schnauzers, suggesting that this breed may be more susceptible to M. avium than other dog breeds. The cat isolates were 2 M. bovis, 1 M. fortuitum, and 1 MAH. Mycobacterial interspersed repetitive unit-variable-number tandem repeat patterns suggested possible links with cattle, swine, and humans studied previously in Argentina. The results show that pets may act as susceptible hosts with the potential risk of transmitting the infection to humans and other animals.

Changes through territorial windows. Quebrada de Humahuaca [Jujuy, Argentina

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Constanza Inés Tommei

2013-07-01

Full Text Available The paper works on the redraw, construction and analysis of new maps and interpretations in some territorials windows, in various scales, for few urban centers of the Quebrada de Humahuaca (Jujuy, Argentina as an instrument of knowledge. In this sense, this research is looking to understand the morphological processes of transformation in recent decades, in relation to the economic crisis in Argentina at the beginning of the XXI century, the declaration of the Quebrada de Humahuaca as a World Heritage Site (UNESCO, 2003 and national tourism promotion, among other events that have changed the local’s logics. For this, study the changes and continuities in the territory and the types of urban development –adding new blocks, annexation of new neighborhoods and subdivisions in the urban discontinuous or gradual densification of urban, rural and rururban, among others– knowing the recent history of the Quebrada.

Discharges of radioactive materials to the environment in Argentina

CERN Document Server

Curti, A R

2003-01-01

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

Paired donation in Argentina. Bioethics reflections based on the study of living donors. Joint Document of the Bioethics Committees of the Sociedad Argentina de Nefrología and the Sociedad Argentina de Trasplante

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Eduardo U. Tanús

2017-01-01

Desde la perspectiva de la ética aplicada se hace necesario entonces observar ante cualquier innovación en el sistema que regule la trasplantología Argentina para adecuarla a este contexto y la problemática específica de nuestro país y pasar revista a la situación actual.

Area Handbook Series: Argentina: A Country Study

Science.gov (United States)

1985-08-01

votes after a campaign that emphasized firm opposition to the military government and verbal attacks on the trade union leadership of the PJ...legal pro- cedures that were designed especially for these cases. The trials were open to the public, evidence would be taken verbal - ly instead of...1981,144-45. Terrera, Guillermo Alfredo. Geopolitica Argentina: Poblacion, fronteras, comunicaciones , antropologia. Buenos Aires: Edi- torial Plus

Nuevos registros de hongos entomopatógenos en acridios (Orthoptera: Acridoidea de la República Argentina New records of entomopathogenic fungi from grasshoppers (Orthoptera: Acridoidea in Argentina

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Sebastian A. Pelizza

2010-12-01

Full Text Available Los acridios (tucuras y langostas continúan ocasionando pérdidas económicas en la agricultura a nivel mundial. En Argentina, la importancia de estos insectos ha sido reconocida desde mediados del siglo XIX, dependiendo de la región considerada y en relación al progresivo desarrollo agropecuario en el país. Los hongos son los microorganismos parásitos de insectos más frecuentemente encontrados en la naturaleza y la mayoría de las investigaciones con hongos entomopatógenos se ha centrado en su desarrollo como bioplaguicidas. En el presente trabajo se dan a conocer cinco registros nuevos de Beauveria bassiana (Bals.-Criv. Vuill., y dos de Entomophaga grylli (Fresen. A. Batko que se encontraron afectando distintas especies de acridios; se amplía así la distribución geográfica y el espectro hospedador para estas especies fúngicas. Cabe destacar que con el aporte de estos siete registros nuevos, el número total de hongos entomopatógenos de acridios citados para la República Argentina se eleva de 22 a 29.Grasshoppers and locusts continue causing serious economic losses in agriculture worldwide. In Argentina, the importance of these insects has been recognized since the mid-nineteenth century, depending on the region considered and in relation to the progressive development of agriculture. Fungi are the most frequently found microorganisms parasitizing insects in nature, and most of the entomopathogenic fungi investigations have been focused on their development as biopesticides. In this study five new records of Beauveria bassiana (Bals.-Criv. Vuill., and two new records of Entomophaga grylli (Fresen. A. Batko, are presented, extending the geographical distribution and the host range for these fungal species. With these seven new records, the total number of grasshopper entomopathogenic fungi cited for Argentina is raised from 22 to 29.

El ‘exilio’ uruguayo en Argentina: Intersecciones entre memoria, ciudadanía y democracia

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Silvina Merenson

2015-04-01

Full Text Available The Uruguayan ‘Exile’ and Argentina: At the Intersections of Memory, Citizenship, and DemocracyThis article explores the interdependencies between ‘memory’, ‘citizenship’, and ‘democracy’ introduced by the Uruguayan ‘exile’ in Argentina together with the coalition Frente Amplio de Uruguay en Argentina (FAUA – Broad Front of Uruguay in Argentina. Starting from a critical review of Transnational Studies and ethnographic fieldwork, this article analyses the political construction of the ‘exile’ and the historical process followed by the FAUA from 1982 up to the present. The article questions the ways in which memories work in regard to the recent past upon value judgements and possible conditions of ‘transnational citizenship’. It maintains that the forms of processing notions of belonging to the political community of origin, as well as those acts of identification and political capital that provide the experience of ‘exile’, offer a privileged point from which to reflect on the ways in which this activism explains the process of democratization in Uruguay.Resumen:Este artículo explora las interdependencias entre ‘memoria’, ‘ciudadanía’ y ‘democracia’ sugeridas por el ‘exilio’ uruguayo en Argentina sumado a la coalición Frente Amplio de Uruguay en Argentina (FAUA. Partiendo de la revisión crítica de los Estudios Transnacionales y del trabajo de campo etnográfico, el artículo analiza la construcción política del ‘exilio’ y el proceso histórico seguido por el FAUA entre 1982 y la actualidad. El artículo se pregunta por los modos en los que operan las memorias acerca del pasado reciente en las valoraciones y condiciones de posibilidad de la ‘ciudadanía transnacional’ y sostiene que las formas de procesar los criterios de pertenencia a la comunidad política de origen, así como con los actos de identificación y el capital político que provee la experiencia del �

El Lanús : Memoria, política y psicoanálisis en la Argentina (1956-1992)

NARCIS (Netherlands)

Visacovsky, S.E.

2001-01-01

En este trabajo son estudiados los procesos de construcción de la memoria social en la Argentina, y las relaciones entre memorias políticas y memorias profesionales. El objeto empírico son los relatos sobre el pasado del más célebre servicio de salud mental de la Argentina, conocido como el Lanús

Positive natural resource shocks and domestic adjustments in a semi-industrialized economy: Argentina in the 2004-2007 period

NARCIS (Netherlands)

L.A. Serino (Leandro)

2009-01-01

textabstractThis paper evaluates the domestic adjustment to recent positive external shocks in Argentina's natural resource sectors. Although there is no single, exclusive determinant of Argentina's fast economic growth in the period 2003-2007, the paper illustrates the favourable contribution of

Local smoke-free policy development in Santa Fe, Argentina.

Science.gov (United States)

Sebrié, Ernesto M; Glantz, Stanton A

2010-04-01

To describe the process of approval and implementation of a comprehensive smoke-free law in the province of Santa Fe, Argentina, between 2005 and 2009. Review of the Santa Fe smoke-free legislation, articles published in local newspapers and documentation on two lawsuits filed against the law, and interviews with key individuals in Santa Fe. Efforts to implement smoke-free policies in Santa Fe began during the 1990s without success, and resumed in 2005 when the provincial Legislature approved the first 100% smoke-free subnational law in Argentina. There was no strong opposition during the discussions within the legislature. As in other parts of the world, pro-tobacco industry interests attempted to block the implementation of the law using well known strategies. These efforts included a controversy media campaign set up, the creation of a hospitality industry association and a virtual smokers' rights group, the introduction of a counterproposal seeking modification of the law, the challenge of the law in the Supreme Court, and the proposal of a weak national bill that would 'conflict' with the subnational law. Tobacco control advocates sought media attention as a strategy to protect the law. Santa Fe is the first subnational jurisdiction in Latin America to have enacted a comprehensive smoke-free policy following the recommendations of the World Health Organization (WHO) Framework Convention on Tobacco Control. After 3 years of implementation, pro-tobacco industry forces failed to undermine the law. Other subnational jurisdictions in Argentina, as well as in Mexico and Brazil are following the Santa Fe example.

Indicios indirectos de la presencia del oso andino (Tremarctos ornatus Cuvier, 1825 en el noroeste de Argentina Indirect evidence on the presence of the Andean bear (Tremarctos ornatus Cuvier, 1825 in northwestern Argentina

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J. Fernando Del Moral

2009-06-01

Full Text Available La presencia de osos andinos (Tremarctos ornatus en Argentina ha sido muy discutida debido a la ausencia de evidencia confirmativa. Muchos expertos en el oso dudan actualmente de su presencia en el país. No obstante, la Selva Tucumano-Boliviana o de Yungas es un ecosistema típico donde se puede encontrar esta especie; particularmente en el área estudiada, el hábitat parece ser de alta calidad para los osos. Entre los años 2001 y 2006, se recopilaron 23 casos de evidencia sobre la presencia de osos andinos en las provincias de Salta y Jujuy. Se registraron huellas, restos alimenticios y heces. Adicionalmente, se entrevistó a nativos, agricultores y cazadores para colectar otros datos sobre la especie. Se concluye que las selvas de Yungas del extremo noroeste de Argentina, deben ser consideradas un área con alta probabilidad de mantener una población residente de osos andinos. Aunque posiblemente esta sea una población aislada y pequeña, la presencia permanente de osos andinos en el noroeste de Argentina no debería ser puesta en duda.The presence of Andean bears (Tremarctos ornatus in Argentina has been disputed due to the absence of confirming evidence. Many Andean bear experts currently doubt on their presence in this country. Nevertheless, the Tucuman-Bolivian Forest or Yungas is a typical ecosystem where this species can be found, particularly in the studied area, in which the habitat appears to be of high quality for bears. Between 2001 and 2006, 23 cases of evidence on the presence of Andean bears in the provinces of Salta and Jujuy were recorded. Footprints, food remains and scats were found. In addition, natives, farmers, and hunters where interviewed to collect new data of this species. The conclusion is that the Yungas Forest of northwestern Argentina must be considered an area with high probability of maintaining a resident population of Andean bears. Although this is probably a small and perhaps isolated population, the

Difilobotriasis humana en la Patagonia, Argentina

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Semenas Liliana

1997-01-01

Full Text Available OBJETIVO: El objetivo del trabajo fué detectar hospedadores humanos en la zona andino patagónica argentina, teniendo en cuenta las prácticas de pesca desportiva y la importancia de los salmónidos dentro de la zona. MATERIAL Y METODO: Entre 1986 y 1995 se implementaron Campañas de Información en los laboratorios de Análisis Clínicos de la región andinopatagónica argentina, destinadas a lograr una detección más eficiente de la difilobotriasis, a través de análisis coproparasitológicos. RESULTADOS: Adicionalmente, se confeccionaron planillas destinadas a recoger información sobre las características de la infección, del tratamiento y del paciente. Durante este período se detectaron 13 nuevos casos humanos, por identificación directa del parásito o por la presencia de huevos en materia fecal. Las características de las infecciones responden a las descriptas para el género Diphyllobothrium. CONCLUSIONES: En la región, los salmónidos son los peces predilectos en la pesca deportiva. Estos peces, frecuentemente parasitados con larvas, constituyen la principal fuente de contagio para el hombre al ser consumidos insuficientemente cocidos o ahumados en frío.

Difilobotriasis humana en la Patagonia, Argentina

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Liliana Semenas

1997-06-01

Full Text Available OBJETIVO: El objetivo del trabajo fué detectar hospedadores humanos en la zona andino patagónica argentina, teniendo en cuenta las prácticas de pesca desportiva y la importancia de los salmónidos dentro de la zona. MATERIAL Y METODO: Entre 1986 y 1995 se implementaron Campañas de Información en los laboratorios de Análisis Clínicos de la región andinopatagónica argentina, destinadas a lograr una detección más eficiente de la difilobotriasis, a través de análisis coproparasitológicos. RESULTADOS: Adicionalmente, se confeccionaron planillas destinadas a recoger información sobre las características de la infección, del tratamiento y del paciente. Durante este período se detectaron 13 nuevos casos humanos, por identificación directa del parásito o por la presencia de huevos en materia fecal. Las características de las infecciones responden a las descriptas para el género Diphyllobothrium. CONCLUSIONES: En la región, los salmónidos son los peces predilectos en la pesca deportiva. Estos peces, frecuentemente parasitados con larvas, constituyen la principal fuente de contagio para el hombre al ser consumidos insuficientemente cocidos o ahumados en frío.

Yugoslav teachers in Argentina 1939-1944

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Stefanović-Banović Milesa

2014-01-01

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

L’esperienza poetica nell’Argentina degli anni Sessanta

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S. Lafuente

2012-08-01

Full Text Available ENJuan Gelman, Leónidas Lamborghini, Francisco Urondo, César Ferández Moreno, among the most famous of the poetic generation in Argentina during the Sixties, take up the concept of critical verbal art that the Hispanic-American vanguard had proposed as a priority. They finished the work of their predecessors, especially that of the late Huidobro, who, after Altazor left the more external aspects of the play behind, and of César Vallejo, creating a poetic area where emotion and subjectivity coexist with linguistic experimentation, where the pleasure of construction and the subtleties of linguistic deformations are inexorably tied to sentiment.In obliterating the distance between I and You, their poetry abandons the passage between different textual practices and gives space to an inter-subjectivity that leads the reader to forget his passivity and become active in sensory production.Keywords: avant-garde, Argentine poetry, the Sixties, linguistic experimentationITJuan Gelman, Leónidas Lamborghini, Francisco Urondo, César Ferández Moreno, fra i nomi più noti della generazione poetica argentina degli anni Sessanta, riprendono la concezione di un’arte verbale critica che l’avanguardia ispanoamericana aveva proposto come prioritaria. Completano il lavoro dei suoi predecessori, soprattutto dell’ultimo Huidobro, che dopo Altazor abbandona gli aspetti più esterni del gioco, e di César Vallejo, creando uno spazio poetico dove l’emozione, la soggettività, coesistono con la sperimentazione del linguaggio, dove il piacere della costruzione, delle sottigliezze delle deformazioni linguistiche sono indissolubilmente legate al sentimento.La loro poesia, nell’abolire la distanza fra Io e Tu, lascia aperto il passaggio fra le pratiche testuali differenti e dà spazio a un’intersoggettività che induce il lettore ad abbandonare la sua passività e a diventare attivo nella produzione del senso.Parole chiave: avanguardia, poesia argentina

Avances y rémoras de las concepciones morales en la sociedad argentina

OpenAIRE

Barrancos, Dora Beatriz

2013-01-01

La comunicación plantea algunos cambios vinculados con la moral sexual en la Argentina y también la persistencia de viejas nociones. Se analizan las dificultades que hubo para la obtención de derechos civiles en comparación con otros países, especialmente el divorcio. Se contrasta esa dificultad legal con ciertas conductas del pasado, como los casamientos de argentinos y de residentes argentinos en el Uruguay, en muchos casos bígamos. En un giro de cambios inesperados, la Argentina modificó l...

Proyecciones de rabia canina en Argentina, Bolivia y Paraguay, usando series de tiempo

OpenAIRE

SCORTTI, M.; CATTAN, P.; CANALS, M.

1997-01-01

Se estudió el número de casos mensuales de rabia canina en Argentina (1971-1993), Bolivia (1987-1993) y Paraguay (1976-1993), a fin de identificar fluctuaciones regulares y predecir el comportamiento futuro de la rabia en dichos países. Los métodos empleados consistieron en análisis de series de tiempo, incluyendo el análisis armónico de Fourier y los modelos multiplicativos ARIMA-SARIMA de Box-Jenkins. Se evidenciaron ciclos en Argentina y Paraguay. La estacionalidad ocurrió a fines de invie...

First record of the genus Typhlocybella (Hemiptera: Auchenorrhyncha: Typhlocybinae: Dikraneurini from Argentina Primer registro del género Typhlocybella (Hemiptera: Auchenorrhyncha: Typhlocybinae: Dikraneurini para Argentina

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María I. Catalano

2008-12-01

Full Text Available The genus Typhlocybella Baker is quoted for first time for Argentina from specimens collected on maize crops in Buenos Aires, Mendoza, Córdoba and Tucumán provinces. This contribution adds taxonomic and bioecologic knowledge about the genus as well as observations about the leaf damage produced on this crop.El género Typhlocybella Baker se cita por primera vez para la Argentina a partir de ejemplares recogidos sobre cultivos de maíz en las provincias de Buenos Aires, Mendoza, Córdoba y Tucumán. En esta contribución se reúne información relevante acerca de los aspectos taxonómicos y bioecológicos del género, y se adicionan observaciones acerca de los daños foliares que provocan sobre el mencionado cultivo.

Transmission pricing and expansion methodology: lessons from Argentina

International Nuclear Information System (INIS)

Anderson, K.P.; McCarthy, A.

1999-01-01

This paper focuses on the pricing of electric transmission service in Argentina and on the mechanisms for expanding the transmission system as of late 1998. We also discuss the pricing of energy and generating capacity, since locational differences in their prices constitute charges for transmission service. We find that the methods in place for pricing transmission service are, in the main, consistent with the principles of efficient pricing but that the incentives and mechanisms established for expanding transmission are deficient in some respects. Most notable is the failure to provide for transmission rights, given the system's heavy reliance on user-driven expansion. We find that Argentina can improve upon its pioneering effort to implement user-driven expansion and indeed is exploring ways to do so. The most important tasks are to investigate (a) whether a system of financial transmission rights can be made to work as part of the process of user-driven expansion and (b) whether a backstop role for centrally planned expansion can be preserved without inhibiting or preempting the user-driven process. (author)

Unpacking the school: Textbooks, teachers, and the construction of nationhood in Mexico, Argentina, and Peru

OpenAIRE

Vom Hau, Matthias

2009-01-01

This article examines trajectories of nationalism in twentieth-century Argentina, Mexico, and Peru through the analytical lens of schooling. I argue that textbooks reveal state-sponsored conceptions of nationhood. In turn, the outlooks and practices of teachers provide a window for understanding how state ideologies were received, translated, and reworked within society. During the late nineteenth century, textbooks in Mexico, Argentina, and Peru conceived of the nation as a political communi...

Lista y distribución de los ofidios (Reptilia: Serpentes de Santa Fe, Argentina

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Arzamendia, Vanesa

2002-05-01

Full Text Available Se estudió la composición y distribución de las serpientes en la provincia de Santa Fe, Argentina, sobre la base de 1.292 registros obtenidos en muestreos de campo, revisión de las colecciones herpetológicas de Argentina y registros bibliográficos. Se registraron 51 especies y subespecies (43 Colubridae, 3 Viperidae, 2 Boidae, 1 Elapidae, 1 Leptotyphlopidae y 1 Typhlopidae, representando un 39% de los taxones registrados para Argentina. Se realizaron mapas con localidades precisas para determinar la distribución de las serpientes. Una especie y 4 subespecies son registros novedosos para la provincia. Los patrones de distribución son brevemente discutidos en relación con las formaciones fitogeográficas. We studied the composition and distribution of the Santa Fe snakes based on 1,292 examined specimens obtained in field survey, revision of the Argentine herpetological collections and reliable literature records. Maps were built for determinate the distribution of snakes. Fifty one species and subspecies were recorded (43 Colubridae, 3 Viperidae, 2 Boidae, 1 Elapidae, 1 Leptotyphlopidae and 1 Typhlopidae, a 39% of the survey taxa in Argentina. One species and three subspecies were new records in Santa Fe province. The distributional patterns are briefly discussed in relation with phytogeographical subdivisions.

Investment in Renewable Energies in Argentina

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Marina Recalde

2017-05-01

Full Text Available This article analyzes how the enabling conditions of the energy policy of a developing country such as Argentina, are crucial for the deployment of renewable energy investments. The conclusions highlights that the low institutional quality of the country shapes enabling conditions and reduce effect of the instruments of the energy policy, dropping incentives for investment in renewable technologies in the country. Therefore, in order to promote renewable technologies investments efficiently, the institutional framework of countries must be seriously improved.

Identificación, biotipificación y caracterización de cepas de Pasteurella multocida aisladas en la Argentina Identification, biotypification and characterization of Pasteurella multocida strains isolated in Argentina

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G. A. Leotta

2006-09-01

Full Text Available Treinta cepas de Pasteurella multocida aisladas en la Argentina a partir de muestras de origen humano y animal fueron identificadas, biotipificadas y caracterizadas. Veintidós de ellas (73% correspondieron a P. multocida subsp. multocida; cinco (17% a P. multocida subsp. gallicida y tres (10% a P. multocida subsp. septica. Todas las cepas fueron agrupadas en 8 biotipos; el 70% presentó el tipo capsular A. Los serotipos somáticos más frecuentes fueron el 1 (n:11 y el 3 (n:9. Las cepas de origen porcino fueron resistentes a tiamulina, estreptomicina y tetraciclina. La caracterización de las cepas de P. multocida aisladas en la Argentina es el primer paso para concretar futuros estudios destinados a la prevención y al tratamiento de la pasteurelosis en medicina humana y veterinaria.Thirty Pasteurella multocida strains isolated in Argentina from human and animal samples were identified, biotypified and characterized. Twenty-two (73% strains were identified as P. multocida subsp. multocida, 5 (17% as P. multocida subsp. gallicida, and 3 (10% as P. multocida subsp. septica. All strains were grouped in 8 biotypes, and 70% of the strains presented capsular type A. The most frequent somatic serotypes were 1 (n:11 and 3 (n:9. P. multocida strains from swine source were resistant to tiamulin, streptomycin and tetracycline. Characterization of P. multocida strains isolated in Argentina is the first step to conduct future studies intended for the prevention and treatment of pasteurellosis in human and veterinary medicine.

Bioceres: AG Biotechnology from Argentina

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Roberto Feeney

2016-04-01

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

Concentrating Solar Power Projects - Planta Solar 20 | Concentrating Solar

Science.gov (United States)

Power | NREL 20 This page provides information on Planta Solar 20, a concentrating solar power Solar's Planta Solar 20 (PS20) is a 20-megawatt power tower plant being constructed next to the PS10 tower and increasing incident solar radiation capture will increase net electrical power output by 10

Genome Sequence of Acidovorax avenae Strain T10_61 Associated with Sugarcane Red Stripe in Argentina

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Fontana, Cecilia A.; Bassi, Daniela; Puglisi, Edoardo; Salazar, Sergio M.; Vignolo, Graciela M.; Coccocelli, Pier S.

2016-01-01

Red stripe of sugarcane in Argentina is a bacterial disease caused by Acidovorax avenae. The genome sequence from the first isolate of this bacterium in Argentina is presented here. The draft genome of the A. avenae T10_61 strain contains 5,646,552 bp and has a G+C content of 68.6 mol%. PMID:26847889

Nuevas citas de ácaros oribátidos (Acari: Oribatida para la Argentina New records of oribatids (Acari: Oribatida for Argentina

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Ana Salazar Martínez

2006-12-01

Full Text Available En la presente nota se citan, por primera vez para la Argentina , cuatro especies de ácaros oribátidos: Epilohmannia pallida americana Balogh & Mahunka, 1981, Protoribates (Triangius praeoccupatus (Pérez-Iñigo & Baggio, 1980, Scheloribates curvialatus Hammer, 1961 y Galumna innexa Pérez-Iñigo & Baggio, 1986. Los ejemplares fueron hallados en muestras de suelo recolectadas en La Plata , Provincia de Buenos Aires (34º 54'S, 57º 55´ W, en ambientes sometidos a intervención antrópica: bosques urbanos, huertas orgánicas y pastizales.Four species of oribatid mites are recorded from Argentina for the first time: Epilohmannia pallida americana Balogh & Mahunka, 1981, Protoribates (Triangius praeoccupatus (Pérez-Iñigo & Baggio, 1980, Scheloribates curvialatus Hammer, 1961 and Galumna innexa Pérez-Iñigo & Baggio, 1986. The specimens were collected in soil samples in La Plata , Buenos Aires Province (34º 54' S, 57º 55´ W in sites exposed to different degrees of human intervention: urban forest, organic orchards and pastures.

Nuevos registros de plantas micoheterótrofas aclorofiladas para la provincia de Corrientes, Argentina

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Ernesto R. Krauczuk

2013-07-01

Full Text Available Se presentan nuevos registros de plantas micoheterótrofas aclorofiladas para la provincia de Corrientes, Argentina. Sobre la base de especímenes de herbario recolectados en el territorio de la provincia de Corrientes, Argentina, se documenta por primera vez la presencia de tres especies de plantas micoheterótrofas sin clorofila. Las especies son ilustradas mediante fotografías y se brinda información ecológica sobre los sitios donde las plantas fueron halladas.

Dengue Virus 1 Outbreak in Buenos Aires, Argentina, 2016.

Science.gov (United States)

Tittarelli, Estefanía; Lusso, Silvina B; Goya, Stephanie; Rojo, Gabriel L; Natale, Mónica I; Viegas, Mariana; Mistchenko, Alicia S; Valinotto, Laura E

2017-10-01

The largest outbreak of dengue in Buenos Aires, Argentina, occurred during 2016. Phylogenetic, phylodynamic, and phylogeographic analyses of 82 samples from dengue patients revealed co-circulation of 2 genotype V dengue virus lineages, suggesting that this virus has become endemic to the Buenos Aires metropolitan area.

Novedades nomenclaturales en la tribu Stipeae (Poaceae, Pooideae para la Flora Argentina

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Ana María Cialdella

2010-01-01

Full Text Available Durante la revisión de los géneros de Stipeae (Poaceae para la flora argentina y de acuerdo a los últimos estudios filogenéticos en la tribu, se confirmó la necesidad de transferir algunos taxones recientemente descriptos de Stipa a Nassella, Jarava o Pappostipa. En este trabajo se presentan 12 nuevas combinaciones: Jarava ichu var. pungens, Nassella brachyglumis, N. macrotricha, Pappostipa arenicola, P. choconensis, P. colloncurensis, P. frigida var. longifolia, P. jucunda, P. kieslingii, P. mapuche, P. marqueziana y P. zulmae. Se incluye también una clave para identificar los géneros de Stipeae en la Argentina.

VOCES Y SILENCIOS: LA PRENSA ARGENTINA DURANTE LA DICTADURA MILITAR (1976-1983

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Marcelo Borrelli

2011-01-01

Full Text Available El artículo se propone analizar las condiciones de funcionamiento de la gran prensa diaria argentina durante la última dictadura militar argentina (1976-1983, sus principales posiciones editoriales frente a acontecimientos relevantes del periodo y cuáles fueron las políticas más importantes de parte del régimen militar hacia los medios de prensa. El trabajo pone un especial énfasis en el rol que adquirió la prensa diaria en el marco del sistema represivo clandestino conocido como terrorismo de estado y de las intenciones de refundación social de los militares en el poder.