oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2019 ( 13 )

2018 ( 20 )

2017 ( 17 )

2016 ( 8 )

Custom range...

Search Results: 1 - 10 of 5262 matches for " Hugo Busso "
All listed articles are free for downloading (OA Articles)
Page 1 /5262
Display every page Item
Salirse de juego . Perspectivas de articulación teórica entre la crítica decolonial transmoderna con las reflexiones de Foucault y Deleuze
Hugo Aníbal Busso
Tabula Rasa , 2012,
Abstract: Los desafíos biopolíticos del presente incitan a buscar respuestas creativas a la crisis del sistema mundo y alternativas a la representación filosófica moderna. Crisis y representación, que desde la filosofía de la liberación sugieren dejar de lado las anclas modernascoloniales, se aladas como obstáculos filosóficos con consecuencias bio-lógicas/políticas y sociales, criticadas y rotuladas como eurocentrismo. Para enfocar la situación no desde un afuera imposible, sino desde el pliegue del afuera, proponemos un personaje conceptual ligado a la tradición pre-hispánica, el brujo-chamán-curandero, que nos permita abordar las preguntas y desafíos propuestos, ensayando pensar las posibilidades decoloniales de una filosofía crítica en América latina. En ese sentido, hemos propuesto incluir en nuestras conjeturas y argumentos los aportes del paradigma de la complejidad, el concepto de rizoma de Deleuze y Guattari y las estrategias heurísticas-cognitivas alternativas (analécticas, transmodernas) a los paradigmas de filosofía de la modernidad eurocentrada.
Entrevista a Ramón Grosfoguel
Angélica Montes Montoya,Hugo Busso
Polis : Revista de la Universidad Bolivariana , 2007,
Abstract: Grosfoguel habla acerca de la colonialidad del poder y de la posibilidad de una política radical más allá de las políticas de la identidad y de la articulación de un discurso crítico que supere el nacionalismo y el colonialismo. Propone superar los paradigmas de la economía política y los estudios culturales. Parte del criterio que colonialidad y modernidad son dos caras de la misma moneda y sintetiza la crítica a la epistemología eurocéntrica hegemónica, que asume un punto de vista universalista, neutral y objetivo. La solución a las desigualdades sociales globales requiere imaginar alternativas utópicas más allá del colonialismo y el nacionalismo, y de las formas de pensar binarias de los fundamentalismos eurocéntricos primermundistas y tercermundistas. Propone con Quijano la socialización del poder, y su aporte remite a un lenguaje crítico común descolonizador.
Las ferias comerciales: también un espacio de trabajo y socialización. Aportes para su estudio
Busso,Mariana;
Trabajo y sociedad , 2011,
Abstract: aportar una perspectiva analítica para el estudio del trabajo en espacios públicos, y en particular en ferias comerciales, es el objetivo principal del presente artículo. teniendo en cuenta dicho objetivo, presentamos a las ferias como espacios universales e históricos de intercambios para luego detenernos en la realidad de las ferias en argentina. un repaso de los principales estudios sobre ferias disponibles en la literatura sociológica en particular, y de las ciencias sociales en general nos permitirá posteriormente explicitar las seis dimensiones que a nuestro entender son indispensables para la comprensión de la realidad de las ferias urbanas: dimensiones físico-estructurales, sociodemográficas, legales/institucionales, comerciales, políticas e ideológico-culturales. luego presentamos las variables a partir de las cuales consideramos imprescindible analizar y comprender la realidad de los trabajadores feriantes, para finalizar explicitando las esferas que se entrecruzan en estos espacios y las consecuencias sociales y políticas que ello conlleva.
Uso de la cámara de presión y los psicrómetros a termocupla en la determinación de las relaciones hídricas en tejidos vegetales
Busso,CA;
Phyton (Buenos Aires) , 2008,
Abstract: advantages, disadvantages and precautions of using the pressure chamber and thermocouple psychrometers for determinations of plant water potential, and osmotic and turgor pressures are discussed. comparison of results obtained with both instruments will be influenced by the sampling technique, consistency in both sampling and measurement procedures, and errors inherent to the method itself. in-situ readings of either plant or soil water potential with thermocouple psychrometers are perhaps worthless, or worse (they may even be misleading). use of thermocouple psychrometers is strictly limited to the laboratory where isothermal conditions can be obtained. the method to determine the water relations of plant tissues should be chosen according to the plant material and the research objectives.
Las ferias comerciales: también un espacio de trabajo y socialización. Aportes para su estudio The market places: also a work and socialization space.Contributions for its study
Mariana Busso
Trabajo y sociedad , 2011,
Abstract: Aportar una perspectiva analítica para el estudio del trabajo en espacios públicos, y en particular en ferias comerciales, es el objetivo principal del presente artículo. Teniendo en cuenta dicho objetivo, presentamos a las ferias como espacios universales e históricos de intercambios para luego detenernos en la realidad de las ferias en Argentina. Un repaso de los principales estudios sobre ferias disponibles en la literatura sociológica en particular, y de las ciencias sociales en general nos permitirá posteriormente explicitar las seis dimensiones que a nuestro entender son indispensables para la comprensión de la realidad de las ferias urbanas: dimensiones físico-estructurales, sociodemográficas, legales/institucionales, comerciales, políticas e ideológico-culturales. Luego presentamos las variables a partir de las cuales consideramos imprescindible analizar y comprender la realidad de los trabajadores feriantes, para finalizar explicitando las esferas que se entrecruzan en estos espacios y las consecuencias sociales y políticas que ello conlleva.
The Early Solar System - Chapter 6
M. Busso
Physics , 2010,
Abstract: This chapter presents a (partial) review of the information we can derive on the early history of the Solar System from radioactive nuclei of very different half-life, which were recognized to have been present alive in pristine solids. In fact, radioactivities open for us a unique window on the evolution of the solar nebula and provide tools for understanding the crucial events that determined and accompanied the formation of the Sun. Discussing these topics will require consideration of (at least) the following issues. i) The determination of an age for solar system bodies, as it emerged especially from the application of radioactive dating. ii) A synthetic account of the measurements that proved the presence of radioactive nuclei (especially those of half-life lower than about 100 Myr) in the Early Solar System (hereafter ESS). iii) An explanation of their existence in terms of galactic nucleosynthesis, and/or of local processes (either exotic or in-situ) preceding and accompanying the formation of the Sun. This will also need some reference to the present scenarios for star formation, as applied to the ESS.
Soil resource acquisition mechanisms, nutrient concentrations and growth in perennial grasses
Saint Pierre,Carolina; Busso,Carlos A; Montenegro,Oscar A; Rodríguez,Gustavo D; Giorgetti,Hugo D; Montani,Tomás; Bravo,Oscar A;
Interciencia , 2004,
Abstract: relationships among soil resource acquisition mechanisms and components of shoot tissue production were studied in the late-seral, grazing tolerant and competitive stipa clarazii ball and in the earlier-seral, less grazing tolerant and competitive s. tenuis phil and s. ambigua speg. history of grazing and/or fire determines abundance of these c3 perennial tussock grasses in temperate, semiarid rangelands of argentina. we hypothesized lower values for root length density (rld) and percentage vesicular-arbuscular mycorrhizal (%vam) colonization on defoliated than on undefoliated plants, and also greater values for rld and %vam colonization on defoliated and undefoliated plants of s. clarazii than on those of the other two species, because of its greater competitive ability and defoliation tolerance. field study was conducted within a 2-year exclosure to domestic herbivory. one group of plants was defoliated once to 5cm stubble height in early spring, while another group was defoliated twice, in early and mid-spring. a third group remained undefoliated (control). measurements were conducted 6-10 days after each defoliation, and at the end of the growing season. rld and %vam colonization were similar on defoliated plants and on undefoliated controls in all three species. greater regrowth production in s. clarazii was not associated with higher rld and %vam colonization in the more competitive species. the positive relationship between rld and either dry weight production or tissue n and p concentration in these species suggests that their root activity must be maintained after defoliation to rapidly reestablish a photosynthetic canopy and keep resource supply at equilibrium. all perennial grasses showed consistently high %vam colonization, suggesting they may function as obligate mycotrophs. the negative correlation between %vam colonization and rld or soil available p for s. clarazii could represent a mechanism to avoid shifts from mutualism to parasitism in the plant-
Gout. Mechanisms of inflammation in gout
Nathalie Busso, Alexander So
Arthritis Research & Therapy , 2010, DOI: 10.1186/ar2952
Abstract: Acute gout, also called podagra when it affects the first metatarsophalangeal joint, is due to the inflammatory reaction of joint tissues when monosodium urate (MSU) crystals form within the joint. The link between crystal deposition and joint inflammation was made by Garrod, who developed the thread-test assay of serum urate and stated that 'the deposited urate of soda may be looked upon as the cause, and not the effect, of the gouty inflammation'. Older clinical descriptions of acute gout, from Hippocrates to Charcot, detailed the very sudden and inflammatory character of an attack.The initial symptoms of a gouty attack are sudden and violent, taking place nearly always at night. The patient feels a sudden onset of pain ... it often affects the big toe 1st MT joint, which becomes rapidly red and swollen; the veins of the leg can become dilated, and the leg can become purple and sometimes accompanied by bruising.Charcot, Maladies des Vieillards, 1890This account brings to life all of the cardinal manifestations of acute inflammation. After McCarty and Hollander published their observations that the crystals found in the synovial fluid were composed of MSU [1], there remained no doubt that urate crystals are the cause of this intense inflammation. These observations have led to detailed analyses of the inflammatory pathways triggered by urate crystals and the mechanisms that link crystal deposition to tissue inflammation.During the past decade, the role of innate immune responses in the initiation of inflammatory and immune responses to injury and infection has gained prominence. In contrast to the acquired immune system, innate responses orchestrate the immediate and early phases of host defence to microbes as well as to injury, initiating the inflammatory reaction and recruiting cells of the acquired immune system to the site of inflammation. These advances bring our attention back to the interplay between cells of the innate immune system and the products of tiss
Seed rain in and between vegetation patches in arid Patagonia, Argentina
Bonvissuto,GL; Busso,CA;
Phyton (Buenos Aires) , 2007,
Abstract: seed rain has ecological consequences on plant community structure. this study was conducted in the monte austral neuquino nearby the town of picún leufú, province of neuquén, argentina, within an area of 15 km x 15 km (39o 20 32' s; 69o19 30' w). studies were conducted at two sites, distant 1.5 km from one another. vegetation is distributed on the soil surface as vegetation patches. four superficial locations may be found in the soil of these patches: location 1, small dune accumulated under the lee; location 2, found at the edge of the small dune, and below the major grass canopies and tallest shrubs; location 3, located at the edge of the vegetation patch, and location 4 which includes the uncovered corridors among vegetation patches. seed rain was measured by collecting seeds from traps located in the four study locations. our working hypotheses were that (1) seeds of the study species arrive to all locations of the vegetation patches and the nude corridors among patches, and (2) the magnitude of the seed rain depends on time of the year. larrea divaricata showed the greatest values in the corridors among vegetation patches and in the periphery of such patches. a similar pattern was found for s. neaei although this species dispersed seeds further from the mother plant. atriplex lampa distributed seeds homogeneously in all four locations. elymus erianthus only contributed 1 seed to the seed rain. larrea divaricata showed a greater proportion of its total seed rain between december and march in all locations. seed rain in a. lampa was almost permanent throughout the year while in s. neaei was concentrated in december and january, although it showed some seed rain until april.
Ascenso hidráulico en y entre isletas de vegetación en la zona árida de Argentina
Bonvissuto,GL; Busso,CA;
Phyton (Buenos Aires) , 2006,
Abstract: this study was conducted in the monte austral neuquino (man), provincia de neuquén, argentina (39o20' s; 69o19' w). vegetation is distributed at the site as vegetation patches. there are two contrasting sites on the soil of these patches: location 1, under the canopy of major perennial grasses and shrubs, and location 2, which includes the vegetation uncovered interspaces between the patches. the hypothesis of this work was that hydraulic lift is greater under than between the vegetation patches. thermocouple psychrometers were placed under the shrubs and in the interspaces in each of two vegetation patches, and water potential measurements were taken. soil water content was also determined by the gravimetric method. obtained results lead to reject the posted hypothesis. evidences of the occurrence of hydraulic lift were found neither under the shrubs nor in the interspaces between vegetation patches. this was because soil water content and soil water potential did not increase after transpiration was inhibited when plastic, black tents completely covered all plants in each vegetation patch. it is likely that hydraulic lift does not play an ecologically important role in the phenomenon of facilitation produced by the shrub presence, fact which has been demonstrated by parallel research to the one reported here. several alternatives which could contribute to explain the obtained results are discussed.
Page 1 /5262
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.