El uso de zonas censales para medir la segregación residencial: contraindicaciones, propuesta metodológica y un estudio de caso: Argentina 1991-2001 Rodriguez, Gonzalo Martin Medir la segregación residencial a partir de unidades espaciales arbitrarias construidas por los organismos censales conlleva ciertos inconvenientes vinculados a lo que se conoce como el Problema de la Unidad Espacial Modificable (PUEM). Este problema ha sido generalmente ignorado por la mayoría de los investigadores, como si no afectara los resultados de sus estudios. En este trabajo se discute la legitimidad de usar zonificaciones censales para medir la segregación residencial, y se propone el uso de técnicas de desagregación y reagrupamiento de datos (DRD) que podrían aportar a reducir los sesgos del PUEM. Una de estas técnicas es utilizada para medir la segregación residencial socioeconómica en la Argentina durante el período 1991-2001. Se concluye que en países como Argentina estas técnicas constituyen, sin embargo, una solución muy limitada, y que solo a partir de introducir cambios de política en la gestión de datos censales podrá mejorarse sustancialmente la calidad de los estudios en este y otros campos.; Attempts on measuring residential segregation using arbitrary spatial units constructed by census agencies carry certain drawbacks related to what is commonly known as the Modifiable Areal Unit Problem (MAUP). This problem has been generally ignored by urban researchers in this topic as if it would not affect the results of their studies. This paper discusses the legitimacy of using census zoning systems for measuring residential segregation, and proposes the use of data disaggregation and regrouping (DDR) techniques that may at some degree contribute in reducing MAUP biases. One of these techniques is used for measuring socioeconomic residential segregation trends in Argentina for the 1991-2001 period. We conclude that in countries like Argentina these techniques represent just a partial and limited solution to MAUP. Quality and precision of quantitative studies on residential segregation and other fields dealing with similar problems may be substantially improved only if better access to spatially disaggregated data is provided by census agencies.

Los procesos subjetivos en las reformas de las carreras universitarias Colella, Leonardo Javier El artículo plantea la temática de la reproducción de la desigualdad a través de las instituciones educativas y problematiza las prácticas de dominios que desbordan la cuestión del contenido curricular. La problematización se sitúa en el contexto de las reformas de las carreras universitarias en la actualidad.

Foucault y Rancière como educadores: la explicación como técnica de sí mismo Colella, Leonardo Javier La intención de este artículo es indagar sobre la posibilidad de interpretar algunos conceptos foucaultianos como antecedentes del pensamiento de Rancière, en referencia al estudio sobre los modos de subjetivación en la educación. El análisis de la lógica de la verdad en Foucault y su diagnóstico de las sociedades de normalización encuentran cierta continuidad en la crítica rancieriana a la explicación y a la sociedad del menosprecio. Ambos hacen foco en las prácticas que intervienen en la constitución subjetiva. Rancière restablece en el eje central del análisis filosófico-educativo lo que, paradójicamente, bajo el nombre de Foucault iba perdiendo vigor: el sujeto.

Hongos arbusculares (Glomeromycota) en la rizosfera de Atriplex lampa en dos ambientes salinos de Córdoba: influencia de la profundidad en la colonización radical y presencia de morfoespecies Soteras, María Florencia; Cofré, María Noelia; Bartoloni, José; Cabello, Marta Noemi; Becerra, Alejandra Atriplex lampa es un arbusto halófito de la provincia fitogeográfica Chaqueña que constituye un recurso forrajero a lo largo de todo el año. Las plantas halófitas se benefician al asociarse con los hongos micorrícico arbusculares (HMA), ya que le proveen resistencia contra la salinidad y la sequía. En general, los estudios acerca de los HMA están restringidos a los primeros centímetros del suelo y existe poca información sobre su presencia a mayores profundidades. El objetivo de este trabajo fue estudiar la colonización, la concentración radical e identificar las morfoespecies de HMA en la rizosfera de A. lampa en dos ambientes salinos del norte de la provincia de Córdoba, durante dos estaciones del año, y en cinco profundidades del suelo. Aunque no se encontraron arbúsculos, A. lampa presentó colonización radical por HMA en todas las profundidades. El mayor valor de colonización micorrícica y de concentración radical se observó en las Salinas Grandes. Se identificaron 20 morfoespecies de HMA pertenecientes a los géneros: Acaulospora, Ambispora, Claroideoglomus, Diversispora, Funneliformis, Glomus, Septoglomus y Scutellospora. Este es el segundo registro en Argentina de la presencia de HMA en raíces de A. lampa. Es necesario realizar estudios que evalúen la respuesta de A. lampa frente a la inoculación con HMA para confirmar la funcionalidad de la simbiosis.; Arbuscular fungi (Glomeromycota) in the rhizosphere of Atriplex lampa at two saline environments of Córdoba (Argentina): depth infuence on root colonization and the presence of morphospecies. Atriplex lampa is a valuable fodder shrub available for browsing by livestock even during drought periods in the Chaco Phytogeographical Province. Halophytes may beneft from the association with arbuscular mycorrhizal fungi (AMF) through improved tolerance to drought and salt. Ecological studies of AMF are generally restricted to the main rooting zone. However, AMF vertical distribution and seasonal dynamics in natural saline soils of Argentina have been poorly studied. The aim of this work was to explore AMF root colonization, root concentration and to identify AMF morphoespecies in A. lampa rhizosphere in two saline environments (Salinas de Ambargasta and Salinas Grandes) of central Argentina, in fve soil depth levels, during the wet and dry seasons. Despite we did not fnd arbuscules, AMF were found colonizing A. lampa roots in all depth levels. Salinas Grandes showed the highest root colonization value, and showed the highest root concentration, during wet season. The 20 AMF morphospecies identifed in this work belonged to the genera: Acaulospora, Ambispora, Claroideoglomus, Diversispora, Funneliformis, Glomus, Septoglomus and Scutellospora. This is the second record in Argentina of AMF structures in A. lampa roots. Future studies that evaluate mycorrhizal dependency of the plant are necessary to confrm the function of the symbiosis.

Cell wall modifications and ethylene-induced tolerance to non-chilling peel pitting in citrus fruit Vicente, Ariel Roberto; Manganaris, George A.; Minas, Ioannis S.; Goulas, Vlasios; Lafuente, Maria T. Non-chilling peel pitting (NCPP), a storage disorder resulting in the formation of depressed areas in the peel of many citrus cultivars, is reduced by ethylene treatments. We hypothesized that this effect may be associated with biochemical changes of cell wall components. Therefore, we extracted cell wall material from albedo and flavedo tissues of ‘Navelate’ oranges stored in air, conditioned with ethylene (2 L L−1) for 4 days and subsequently transferred to air, or continuously stored in an ethylene-enriched atmosphere (2 L L−1). Uronic acids and neutral sugars were extracted into five fractions enriched in specific wall polymers namely water-, CDTA-, Na2CO3-, and 1 and 4 M KOH-soluble fractions. Pectin insolubilization was found in control fruit at long storage times. Ethylene treatments, alleviating NCPP, increased polyuronide solubility in the albedo and had a slight effect on the flavedo. Ethylene-treated fruit showed greater content of water-soluble neutral sugars and a larger proportion of hemicelluloses readily extractable with 1 M KOH, with a concomitant reduction in the 4 M KOH-soluble fraction. This suggests that the protective role of ethylene on NCPP is associated with an increased solubilization of the wall of albedo cells.

Liquid phase densification of Al-4.5 wt.% Cu powder reinforced with 5 wt.% Saffil short fibers during hot pressing Moreno, M. F.; Gonzalez Oliver, Carlos Julian R. The Alumix 13 (wt.%) (Al–4.5 Cu 0.5 Mg 0.2 Si) powder with and without 5 wt.% Saffil short fibers specimens were hot pressed in the range 580–620 °C. The densification during pressure increase was fitted using the Konopicky model and an agreement with the associated linear plot P vs. ln(1/(1 − D) was found for both materials, where P is applied pressure and D is the relative density of the porous material. The transient liquid phase formed from the elemental Al and Cu powder particles above the eutectic temperature of 548 °C at low hot pressing pressures, allows to increase the densification due to the reduction in the yield stress of the porous material. The active liquid flow enhanced the deformation between Al particles in the beginning of the pressure ramp. For higher pressures, a sudden break to a higher slope in Konopicky plot was found. This hardening behavior was detected from 610 °C for pure Alumix 13 and it was systematically developed at 580, 600, 610 and 620 °C for the composites, and it can be assigned to diffusion of Cu into the Al grains. During the constant pressure stage the densification was well fitted using the Power Law Creep model with exponents of n = 1 and n = 2, which are related to Newtonian viscous flow and superplastic deformation, respectively. Besides, final hot pressed composites samples retained an important quantity of solidified liquid phase located in between the Saffil fibers agglomerates.

Los modos de ser contingentes de lo político en el acontecimiento teatral Sequeira, María Jazmín Con la crisis del 2001 resurgieron cuestionamientos sobre el sentido político del teatro. Las preguntas y desacuerdos sobre el concepto que define lo político en el acontecimiento teatral reflejaron la incertidumbre frente a los rasgos inéditos de lo social y anunciaron la necesidad de crear renovadas claves de lectura según las demandas de los nuevos tiempos. Algunos interrogantes que continúan abiertos: ¿es pertinente asociar el teatro -siendo específicamente un acontecimiento poético- a un discurso político?, si es así: ¿qué tipo de discurso puede ser político y qué no?; ¿en qué sentido, de qué forma, puede ser político el acontecimiento poético de los cuerpos que excede las significaciones?; ¿existen grados distintos de politicidad?, o ¿todo es político?; ¿qué significa entonces lo político: lo concerniente al gobierno de la comunidad, lo concerniente al autogobierno en comunidad, lo concerniente a las ideologías y hechos sobre el estar con otros?; ¿es acaso la función del teatro en relación a lo social lo que significa su ser y reflexión políticos?, si es así: ¿qué función y qué utilidad se le atribuye? En este trabajo se propone tensionar estos interrogantes con algunos aportes de las teorías políticas de la corriente de pensamiento posfundacional estudiada particularmente por Oliver Marchart (2011).

Del lado de lo que sigue vivo Sequeira, María Jazmín Este artículo despliega un trayecto subjetivo sobre la memoria de Jorge Díaz, director teatral y docente del Departamento de Teatro de la Universidad de Córdoba fallecido en el año 2003. A través del recuerdo de su labor docente en la Facultad de Artes se reviven las marcas significativas y las huellas emancipantes de su legado aún vivo en el campo teatral actual.

Middle Eocene-Oligocene Broken Foreland Evolution In The Andean Valle Calchaqui, Nw Argentina: Insights From Stratigraphic, Structural And Provenance Studies del Papa, Cecilia Eugenia; Hongn, Fernando Daniel; Powell, Jaime Eduardo; Payrola, P.; Do Campo, Margarita Diana; Strecker, M.; Petrinovic, Ivan Alejandro; Schmitt, A.; Pereyra Hafner, Ricardo Eduardo Two end-member models have been proposed for the Paleogene Andean oreland: a simple W-Emigrating foreland model and a broken-foreland model. We present new stratigraphic, sedimentological and structural data from the Paleogene Quebrada de los Colorados (QLC) Formation, in the Eastern Cordillera, with which to test these two different models. Basin-wide unconformities, growthstrata and changes in provenance indicate deposition of the QLC Formation in a tectonically active basin. Both west- and east-vergent structures, rooted in the basement, controlled the depositionand distribution of the QLC Formation from the Middle Eocene to the Early Miocene. The provenance analysis indicates that the main source areas were basement blocks, like the Paleozoic Oire Eruptive Complex, uplifted during Paleogene shortening, and that delimits the eastern boundary of the present-day intraorogenic Puna plateau. A comparison of the QLC sedimentary basin-fill pattern with those of adjacent Paleogene basins in the Puna plateau and in the Santa Barbara System highlights the presence of discrete depozones. These reflect the early partmentalization of the foreland, rather than a stepwise advance of the deformation front of a thrust belt. The early Tertiary foreland of the southern central des is represented by a ca. 250-km-wide area comprising several deformation zones (Arizaro, Macon, Copalayo and Calchaquı) in which doubly vergent or asymmetric structures, rooted in the basement, were generated. Hence, lassical foreland model is difficult to apply in this Paleogene basin; and our data and interpretation agree with a broken-foreland model.

Impact of enriched analyses on regional numerical forecasts over Southeastern South America during SALLJEX Garcia Skabar, Yanina; Nicolini, Matilde During the warm season 2002-2003, the South American Low-Level Jet Experiment (SALLJEX) was carried out in southeastern South America. Taking advantage of the unique database collected in the region, a set of analyses is generated for the SALLJEX period assimilating all available data. The spatial and temporal resolution of this new set of analyses is higher than that of analyses available up to present for southeastern South America. The aim of this paper is to determine the impact of assimilating data into initial fields on mesoscale forecasts in the region, using the Brazilian Regional Atmospheric Modeling System (BRAMS) with particular emphasis on the South American Low-Level Jet (SALLJ) structure and on rainfall forecasts. For most variables, using analyses with data assimilated as initial fields has positive effects on short term forecast. Such effect is greater in wind variables, but not significant in forecasts longer than 24 hours. In particular, data assimilation does not improve forecasts of 24-hour accumulated rainfall, but it has slight positive effects on accumulated rainfall between 6 and 12 forecast hours. As the main focus is on the representation of the SALLJ, the effect of data assimilation in its forecast was explored. Results show that SALLJ is fairly predictable however assimilating additional observation data has small impact on the forecast of SALLJ timing and intensity. The strength of the SALLJ is underestimated independently of data assimilation. However, Root mean square error (RMSE) and BIAS values reveal the positive effect of data assimilation up to 18-hours forecasts with a greater impact near higher topography.; Durante a temporada quente de 2002-2003 foi realizado o South American Low-Level Jet Experiment (SALLJEX) no sudeste da América do Sul. Aproveitando-se da base de dados única coletados na região, um conjunto de análises foi gerado para o período SALLJEX, assimilando todos os dados disponíveis. A resolução espacial e temporal deste novo conjunto de análises é maior do que a das análises disponíveis até hoje para o sudeste da América do Sul. O objetivo deste trabalho é determinar o impacto de assimilação de dados em campos iniciais das previsões de mesoescala na região, utilizando o Brazilian Regional Atmospheric Modeling System (BRAMS), com ênfase particular na estrutura do Jato em Baixos Níveis na América do Sul (LLJSA) e nas previsões de precipitação. Para a maioria das variáveis, o efeito de utilizar as análises numéricas com dados assimilados nos campos iniciais é positivo nas previsões de curto prazo. Esse efeito é maior nas variáveis de vento, porém não é significativo nas previsões superiores a 24 horas. Em particular, a assimilação de dados não melhora as previsões de 24 horas da precipitação acumulada, mas tem pequenos efeitos positivos na precipitação acumulada entre 6 e 12 horas de previsão. Como o foco principal é a representação do LLJSA, o efeito de assimilação de dados na sua previsão foi explorado. Os resultados mostram que LLJSA é bastante previsível, entretanto quando dados observados adicionais são assimilados, o impacto é pequeno na previsão durante o tempo de integração e na previsão da intensidade do LLJSA. A intensidade do LLJSA é subestimada independente da assimilação de dados. No entanto, o erro quadrático médio (RMSE) e os valores do Viés revelam os efeitos positivos da assimilação de dados até 18 horas de previsão, com maior impacto perto de topografia.

La recepción del concepto de acedia en la obra de Alberto Magno Peretó Rivas, Rubén Angel La acedia ocupó un importante lugar dentro de la teología espiritual de los Padres del Desierto y el concepto por ellos acuñado pasó al mundo latino a través de Casiano aunque con un significado ya levemente diverso. San Gregorio Magno la desplaza de su listado de los siete pecados capitales y, es por eso, que en los siglos siguientes la acedia será considerada una especie de pereza concerniente a las actividades piadosas propias de la vida religiosa. La escolástica del siglo XIII, sin embargo, produce una renovación del estudio de la acedia, la que encontrará un lugar más o menos importante dentro de los tratados que escribirán pensadores como Guillermo de Auxerre, Alejandro de Hales, Alberto Magno o Tomás de Aquino. En este trabajo deseo puntualizar los aspectos más destacados de la doctrina sobre la acedia que elabora Alberto Magno a lo largo de varias de sus obras, buscando señalar los aspectos más destacados y que evidencia una clara evolución de su pensamiento al respecto.; The acedia or listlessness was an important concept in the Desert Father’s theology and was received in the Latin Europe throw Jean Cassian but slightly modified. Gregory the Great exclude the acedia from his seven deadly sins and, in the next centuries, the acedia will be considered as a king of sloth, especially regarding to the obligations of the religious life. The XIII Century scholastic renew the studies on the acedia and the concept find a place in the works of relevant authors like William of Auxerre, Alexander of Hales, Albert the Great or Thomas Aquinas. In this paper, I want to study the most relevant aspects of the doctrine about the acedia in the works of Albert the Great, pointing out the evidences that show an evolution of the XIII Century on this subject.

Un office liturgique contre l’angoisse: Instances médiévales pour la guérison de l’acédie Peretó Rivas, Rubén Angel L’un des phénomènes spirituels les plus fréquents dans les monastères médiévaux est l’acédie, notion qui réunit des manifestations spirituelles et psychiques des processus propres à la vie des moines. L’une des manifestations de l’acédie est l’angoisse, entendue comme une inquiétude constante qui empêche le moine de se consacrer pleinement à ses devoirs. Dans ce travail, je me propose de présenter une analyse de l’Office du crucifix contre l’angoisse (Ms. Zurich Zentralbibliothek, C 171). Il s’agit d’une dévotion diffusée dans certains milieux monastiques médiévaux destinée à atteindre le dépassement de l’état d’angoisse. Après une introduction à la notion et à la pratique de la curatio verbi, nous tenterons de montrer les aspects thérapeutiques que la liturgie offre dans cet office.; One of the most frequent spiritual phenomenons in medieval monasteries is Acadia, a notion surrounding the spiritual and physiological aspect of a monk’s life. One of the effects of Acadia is anguish, manifesting as a constant anxiety that impinges on the full commitment of a monk to their study. In this analysis, I plan to present an examination of the “Office du crucifix contre l’angoisse” (Office of the Crucifix against Anguish) (Ms. Zurich Zentralbibliothek C 171), a means of devotion present in certain medieval monasteries designed in an attempt to surpass the state of anguish. After an introduction of the notion and practices of curatio verbi, the therapeutic aspects offered by this devotion’s liturgy will be presented.

Minería y Conflicto Social en la provincia de Buenos Aires; Mining and social conflict in the province of Buenos Aires Girado, Agustina La vigencia del modelo minero extractivo-exportador, desarrollado en Argentina a la luz de las políticas neoliberales en la década de 1990, es resistida por diversas comunidades locales, quienes cuestionan tanto las narrativas hegemónicas del discurso neodesarrollista actual, como las representaciones gubernamentales y empresariales existentes en torno al uso y explotación del territorio y medio ambiente. Desde la perspectiva de la Antropología Social el presente artículo reflexiona respecto a la conflictividad social generada en dos ciudades medias de la provincia de Buenos Aires (Tandil y Olavarría) en relación a la explotación minera canteril del Sistema Serrano de Tandilia. Al mismo tiempo posibilita debatir, por un lado, el lugar diferencial que el medio ambiente, específicamente las sierras, ocupa en los diferentes proyectos de ciudad y, por el otro, los cruces y articulaciones específicas entre procesos globales, el posicionamiento de los gobiernos nacionales y las resistencias locales.

MILP-based clustering method for multi-objective optimization: Application to environmental problems Oliva, Diego Gabriel; Guillén Gosálbez, G.; Mateo Sanz, J.m.; Jiménez Esteller, L. Multi-objective optimization (MOO) has recently emerged as a useful technique in environmental engineering. One major limitation of this approach is that its computational burden grows rapidly with the number of environmental objectives, which causes difficulties regarding the computation and visualization of the Pareto solutions. In this work we present several theoretical and algorithmic developments for grouping environmental objectives into clusters on the basis of which the multi-objective optimization can be performed, thereby facilitating the computation and analysis of the Pareto solutions. Our method is based on a novel mixed-integer linear program (MILP) that identifies in a systematic manner groups of objectives that behave similarly. We test the capabilities of our approach using several examples, in which we compare it against other well-known clustering methods.

Infrared spectroscopy studies on stability of dimethyl sulfoxide for application in a LI-air battery Mozhzhukhina, Nataliia; Méndez de Leo, Lucila Paula; Calvo, Ernesto Julio In situ infrared subtractive normalized Fourier transform infrared spectroscopy (SNIFTIRS) experiments performed simultaneously with the electroreduction of oxygen on gold and platinum cathodes in LiPF6 dimethyl sulfoxide (DMSO) electrolyte have shown that the solvent is stable with respect to nucleophilic attack by the electrogenerated superoxide radical anion. However, long-term experiments with KO2 solutions in DMSO have shown a slow formation of dimethyl sulfone. Evidence of dimethyl sulfone formation by anodic oxidation of DMSO above 4.2 V (Li/Li+) in the presence of trace water has been obtained on gold. On platinum, this unwanted reaction in the charging cycle of a lithium−air battery takes place at lower potentials, i.e., 3.5 V.

Relative entropy and holography Blanco, David Daniel; Casini, Horacio German; Lin Yang, Hung; Myers, Robert C. Relative entropy between two states in the same Hilbert space is a fundamental statistical measure of the distance between these states. Relative entropy is always positive and increasing with the system size. Interestingly, for two states which are infinitesimally different to each other, vanishing of relative entropy gives a powerful equation ΔS=ΔH for the first order variation of the entanglement entropy ΔS and the expectation value of the modu Hamiltonian ΔH. We evaluate relative entropy between the vacuum and other states for spherical regions in the AdS/CFT framework. We check that the relevant equations and inequalities hold for a large class of states, giving a strong support to the holographic entropy formula. We elaborate on potential uses of the equation ΔS=ΔH for vacuum state tomography and obtain modified versions of the Bekenstein bound.

Aportes antropológicos a la historia ambiental en contextos y estudios latinoamericanos Saldi, Leticia; Wagner, Lucrecia Soledad En este artículo consideramos los potenciales aportes que la antropología social puede hacer al campo de la Historia Ambiental. En primer lugar, analizamos cómo se institucionalizó la historia ambiental como campo interdisciplinario y cómo se vinculó con otra holística perspectiva de investigación, la Ecología Política, también próspera en Latinoamérica. En segundo lugar, exponemos cómo la Antropología Social concibió a la relación naturaleza-cultura y cómo sus últimas corrientes analizan dicha vinculación superando la dualidad históricamente concebida entre ambas. Con este objetivo, proponemos que la etnografía resulta una buena herramienta metodológica para los estudios de historia ambiental. Por último consideramos algunas investigaciones y ejes centrales que se desarrollan en Argentina desde la Historia Ambiental y la Antropología, y cómo esta última puede contribuir a los estudios sobre conflictos y relaciones socio-ambientales teniendo en cuenta procesos de larga duración.; In this article we consider the potential contributions that social anthropology can make to the environmental history field. Firstly, we analyze how Environmental History was institutionalized as an interdisciplinary field and how it was linked with other holistic perspective, also prosperous in Latin America, the Political Ecology. Secondly, we expose how the Social Anthropology conceived the relationship between nature and culture and how their latest trends try to analyze this relationship and overcome the duality historically conceived between them. With this objective, we propose that the Ethnography becomes a good tool for studies of environmental history. Finally we consider some researches, and central topics that develop in Argentina from Environmental History and Anthropology, and how the latter can contribute to studies of conflicts and socio-environmental relationships, taking into account processes of long duration.

Dos casos de intersexualidad en el cine argentino; Dois casos de intersexualidade no cinema argentino; Two Inter-Sexual cases in argentinian Cinematography Peidro, Santiago Este artículo analiza los filmes argentinos XXY (Lucía Puenzo, 2007) y El último verano de la boyita (Julia Solomonoff, 2009) para indagar sobre el modo en el que la intersexualidad puede ser leída a partir de las conceptualizaciones de anatomopolítica individual y regulaciones poblacionales que Michel Foucault describe, principalmente en sus cursos Los anormales, Defender la sociedad y en su texto, Historia de la sexualidad.; Este artigo analisa os filmes argentinos XXY (Luzia Puenzo, 2007) e O último verão da boyita (Julia Solomonoff, 2009) para indagar sobre o modo com que a intersexualidade pode ser lida a partir das conceitualizações de anatomopolítica individual e regulações populacionais que Michel Foucault descreve, principalmente em seus cursos Os anormais e Defender a sociedade, e em seu texto, História da sexualidade.; The aim of this work is to analyze the Argentinian films XXY (Lucía Puenzo, 2007) and El último verano de la boyita (Julia Solomonoff, 2009) in order to investigate the way inter-sexuality can be read as a junction point between the individual anatomo-policy and the population regulations that Michel Foucault describe particularly in his courses The abnormals, Society must be defended and in his text History of sexuality.

Transformaciones en la vitivinicultura mendocina en las últimas décadas: el doble filo de la estrategia cooperativa Altschuler, Bárbara; Collado Mazzeo, Patricia Alejandra Argentina se convirtió en los últimos años en el quinto productor mundial de vinos. Ese papel predominante a nivel internacional no ha seguido un camino beneficioso para todos los actores involucrados debido centralmente a la disputa entre los modelos productivos de calidad y cantidad. El triunfo de la formas productivas orientadas a la calidad incrementaron las asimetrías en la cadena agroidustrial con un desmejoramiento notable de la condición de vida de los trabajadores y pequeños productores vitícolas. En este marco, las cooperativas de trabajo han servido para tercearizar servicios, enmascarar la relación de dependencia y vulnerar aún más la precariedad laboral que se profundiza entre los trabajadores rurales de la vitivinicultura.

Consistency over time of spatial patterns of fibre diameter and staple length variation over sheep fleeces Rodríguez Iglesias, Ricardo Manuel; Pevsner, Damián Andrés; Rosas, C. A. Macro-patterns of wool variation over sheep fleeces are markedly diverse among individuals. Assessing the consistency over time (i.e. repeatability) of those patterns would be relevant for sampling, individual selection, and raw wool classing, but there are no canonical procedures available to estimate the repeatability of 2D traits. We devised an approach to evaluate consistency over time as a proxy for repeatability in a 2D domain and applied it to a dataset of fibre diameter (FD) and staple length (SL) measurements. Data were collected over a regular grid of 128 sampling points from 10 Corriedale ewes sampled before shearing in two consecutive years. We scaled down the dimensionality of the data set from 128D to 2D, projected the new synthetic data (n=20, one per animal per year) on principal coordinate axes, extracted all relevant Euclidean distances between pairs of data points, and applied an ad hoc coefficient (Csp) designed to assess consistency of spatial patterns over time in a scale from zero (random dispersion independent of individual animal origin) to one (perfect overlapping of data points from the same animals in different years). Point estimates of Csp (±bootstrap-estimated SE) were 0.78±0.06 and 0.64±0.08 for FD and SL, respectively. Estimated 95% confidence intervals excluded zero for both traits, FD: [0.60, 0.84]; SL: [0.43, 0.75]. Contributions of individual animals to overall Csp coefficients were independent between traits (r=-0.11, P=0.76). Main conclusions were that considering the spatial variability of wool traits over fleeces may help avoiding biases of phenotyping, estimation of genetic and phenotypic parameters, and selection decisions, that spatial patterns of variation of FD and SL over sheep fleeces are similarly repeatable across years, and that FD and SL pattern expressions may be independently regulated.