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COPEPODOS ECTOPARÁSITOS Genypterus blacodes (OSTEICHTES)
Get PDFLos peces del género Genypterus son un recurso importante en la industria pesquera, y estos se encuentran expuestos a una serie de ectoparásitos, entre los ectoparásitos se encuentran copépodos los cuales pueden ser muy específicos en sus hospedederos. Una de las especies parásitas corresponde a Sphyrium laevigatum el cual parasita además tres especies de importancia económica en las pesquerías locales chilenas. Se discuten en el presente trabajo las especies parásitas de G. blacodes, así como aspectos ecológicos y biogeográficos.Palabras clave: Genypterus blacodes, ectoparásitos, pesquerías
Componentes de tecnologías para la pesca (instrumentos Traful) en ambientes lacustres y boscosos andinos norpatagónicos, Argentina
Get PDFSeventy years after they were first described, the function of Traful Instruments is still uncertain. From their morphological design and the associated environmental and archaeological contexts, we postulate that they are part of a specialized «composite instrument» for fishing. While their characteristics are unique in the context of the lakes and rivers of North-west Argentinean Patagonia, similarities were found with the line-weights which are widely distributed in Magellanic marine contexts.La funcionalidad de los Instrumentos Traful es incierta luego de 70 años de su descripción. A partir de su diseño morfológico, el contexto ambiental y arqueológico asociado, postulamos que son parte de un “instrumento compuesto” especializado en la pesca. Si bien presentan características singulares en el contexto lacustre y rivereño del interior de la Patagonia noroccidental argentina, se asemejan en cuestiones básicas a los pesos de líneas marinos de gran distribución magallánica
Assessment of groundwater quality of different micro-basins of Bangladesh 2 using hydrochemical analysis
No full textOn the basis of groundwater chemistry, an evaluation of groundwater for domestic and irrigation purposes was carried out for different regions of Bangladesh. Using the chemical compositions and different quality parameters, irrigation quality was assed using 6 different techniques: USDA method, FAO guidelines, Water-Types approach, Combined approach proposed by Al-Bassam et al. (2003), Ali (2010), and GOB (2007) guidelines. Drinking quality was judged by WHO (2011) provisional guidelines and GOB guidelines. Concentrations of major cations and anions of most groundwater samples were within allowable limit. Except one location (i.e. Barisal), the water for irrigation purpose are suitable to 19 marginally suitable considering salinity and sodicity. For drinking purpose, all except 2 locations (i.e. 20 Sunamgonj and Barisal, where iron is a concern) are found suitable. At these locations, other aquifer layer 21 with low Fe can be searched for safer Fe level. Alternatively, Fe removal system can be assembled for 22 collecting drinking water.Keywords: Groundwater, Hydrochemistry, Quality parameters, Integrated quality assessment, Banglades
Nación Mapuche: concepto, historia y desafíos presentes en Gulumapu-Araucanía
Get PDFThis article deals with the problems of the Mapuche nation; as a concept, as a historical view in contrast to the Chilean political nation and the current challenges of the Mapuche movement. This analysis will be performed in three stages, in the first, we will look at the importance of conceptual history as a historiographic method forgaining more precise access to the conceptual categories that relate to historical time, assessing their scope and significance. Secondly, we will carry out a thorough investigation of the literature to find out what are the different meanings of the concept of ‘nation’, the various existing trends of interpretation and the theoretical contributions in order to approach the problems of the Mapuche nation, in this space of the Andes, Gulumapu-Araucanía. Finally, we will review some of the view points of Mapuche intellectuals who address the problems of the Mapuche nation, including readings on ethnicity and colonialism, in order to quantify their theoretical contribution to the mapuche movement. Este artículo aborda la problemática de la nación mapuche como concepto —visión histórica en contrapunto con la nación política chilena— y los desafíos actuales del movimiento mapuche. El análisis se realiza en tres tiempos. En primer lugar, abordaremos la importancia de la historia conceptual como método historiográfico para acceder de manera más prolija a las categorías conceptuales en sincronía con el tiempo histórico, sus alcances y significados. En segundo lugar, realizaremos un barrido bibliográfico por los distintos significados del concepto nación, por las distintas corrientes de interpretación que existen sobre él y por los aportes teóricos para abordan la problemática de la nación mapuche, específicamente a este lado de la cordillera, en el Gulumapu-Araucanía. Por último, revisaremos algunos planteamientos de intelectuales mapuches que abordan la problemática de la nación mapuche, incluyendo lecturas de etnicidad y colonialismo, y realizaremos un balance sobre sus aportes teóricos al movimiento mapuche
Dimensiones culturales de la empresa social. Un modelo para el análisis.
Get PDFThis paper proposes an analytical model for research into the sociocultural dimensions of social enterprises. The need to develop such models is due to the great variety of organizations currently summarized under the term «social enterprise». The model suggested in this contribution complements some of the existing academic definitions of social enterprises with sociocultural theories, such as Weber’s notion of «rationality», the «welfare regimes» announced by Esping-Andersen and the «social types» developed by Mary Douglas. I combine these concepts on two axes. The first axis is the social scale (at micro, meso and macro level) and includes the internal organization, legal characteristics and welfare state context of the social enterprise. The second axis is the «cultural type» underpinning the different scales of axis one: the bureaucratic-hierarchical, the commercial-individualistic and the traditional-communitarian.Este artículo propone un modelo teórico para el análisis de las diferentes dimensiones socioculturales de la empresa social. La necesidad de avanzar en modelos de este tipo deriva de la gran variedad de organizaciones que actualmente se subsumen bajo el mismo lema «empresa social», como de la menor atención que han recibido las variables intangibles en el desarrollo de estas organizaciones. Por lo tanto, el modelo propuesto aquí pretende discutir la contribución que pueden hacer al debate académico actual sobre la empresa social el concepto de «racionalidad» de Max Weber, la noción de «régimen de bienestar» de Esping-Andersen y los «tipos culturales» propuestos por Mary Douglas. El artículo presenta una combinación de estos conceptos en dos ejes que permiten analizar diferentes dimensiones culturales de la realidad empírica de empresas concretas. El primer eje es la «escala social» (micro, macro y mesosocial), que incluye la organización interna, las características jurídicas y el contexto del estado de bienestar nacional de la empresa. El segundo eje es el «tipo cultural», que subyace en cada uno de los niveles del primer eje: el burocrático-jerárquico, el mercantil-individualista y el tradicional-comunitario
«Chilote tenía que ser»: Vida migrante transnacional en territorios patagónicos de Chile y Argentina
Get PDFThis article presents new ethnographical information on milestones in the history of the transnational migration of Chilotes (inhabitants of Chiloe Island, southern Chile), from the 1950s up to the assemblages existing today in different parts of Chilean and Argentinean Patagonia. In particular, we analyse stages in the development of mobility linked to the economic boom in these southern territories, highlighting sectors in which jobs were created on both sides of the border. The preliminary results show how cultural connections are retained with places of origin and residence through the formation of communities, the circulation of goods, the extension of symbolic meanings and new inter-regional migratory trajectories. The methodology used was that of ethnographies in movement derived from circumstantial approaches in different locations in Chiloe and Patagonia between December 2015 and May 2017. The reflections in this work are a contribution to studies on human mobility in southern Chile from multi-local perspectives that allow cultural continuities to be identified in the experience of migration.Este artículo presenta avances de investigación etnográfica considerando hitos históricos en la migración transnacional de chilotes desde los años cincuenta hasta los ensamblajes actuales en lugares de la Patagonia chilena y argentina. En particular, se analizan etapas de movilidad vinculadas al auge económico en territorios australes, destacando sectores de inserción laboral en ambos lados de la frontera. Los resultados preliminares muestran las conexiones culturales reservadas a lugares de origen y residencia a través de la formación de comunidades, circulación de mercancías, extensión de significados y nuevas trayectorias migratorias interregionales. La plataforma metodológica corresponde a etnografías en movimiento derivadas de acercamientos circunstanciales en diferentes localidades de Chiloé y la Patagonia, entre diciembre de 2015 y mayo de 2017. Las reflexiones en este trabajo hacen un aporte a los estudios sobre movilidades humanas en el sur de Chile analizadas desde perspectivas multilocales, que permiten localizar continuidades culturales en la migración vivida.
Radial Osteochondroma in a Chilean Pure Breed Rodeo Horse: First Case Reported in this Breed
Get PDFA 5 year-old Chilean pure breed rodeo gelding was evaluated for lameness in the right forelimb and effusion of the common carpal sheath of the digital flexor tendons. Radiographs revealed exostosis with rounded margins arising from the palmar cortex of the distal metaphysis of the radius. Ultrasonographic examination revealed a thickened and proliferative synovium, excessive anechoic fluid and a hiperechogenic mass protruding from the cortical bone. Tenoscopic exploration confirmed the presence of the mass, and removal was successfully performed through thecotomy. At 4 months postoperatively, the horsed was successfully competing although present mild right forelimb lameness and improving.
Management of Equine production and its environmental impact: the case of settlements in Buenos Aires (Argentina).
Get PDFEquine production in Buenos Aires (Argentina) is 512847 heads. The equine production management is an important factor for the minimization of environmental effects. This management includes the implementation of good practices. The aim of this paper is to characterize the equine production paddocks in Buenos Aires in terms of their management, and to evaluate the possible environmental impact they may generate. Sixteen paddocks have been characterized according to the sources of water supply, quantity and depth of the wells, breed, productive system, type and management of beds, type of feed, feeding practices, supplementation, other ration components and management. These are the first studies on environmental effects of equine production in Argentine
STUDY OF VARIABILITY OF RAINFALL AND SUITABILITY OF FARMING IN SUB- HUMID REGION: A CASE STUDY OF JAIPUR DISTRICT, RAJASTHAN, INDIA
Get PDFAgricultural activities are integrated with climatic conditions and elements such as temperature, humidity, rainfall etc. Rainfall is the prominent feature of climate which directly or indirectly influences agricultural activities. The rainfall patterns and its erratic characteristics has been created problem for farmer as every year its pattern gets change. In India, more than 70% people rely on agriculture and allied activities for their survival. The farming totally depends on rainfall distribution and intensity as farmers are not aware about new technology and methods. This paper is attempted to demonstrate the rainfall variability in Jaipur district, which is situated in sub-humid region of Rajasthan