Sindicador de canales de noticias
PyFocus – A Python package for vectorial calculations of focused optical fields under realistic conditions. Application to toroidal foci
Caprile, Fernando; Masullo, Luciano Andrés; Stefani, Fernando Daniel
Focused optical fields are key to a multitude of applications involving light-matter interactions, such as optical microscopy, single-molecule spectroscopy, optical tweezers, lithography, or quantum coherent control. A detailed vectorial characterization of the focused optical fields that includes a description beyond the paraxial approximation is key to optimize technological performance as well as for the design of meaningful experiments and interpret properly their results. Here, we present PyFocus, an open-source Python software package to perform fully vectorial calculations of focused electromagnetic fields after modulation by an arbitrary phase mask and in the presence of a multilayer system. We provide a graphical user interface and high-level functions to easily integrate PyFocus into custom scripts. Furthermore, to demonstrate the potential of PyFocus, we apply it to extensively characterize the generation of toroidal foci with a high numerical aperture objective, as it is commonly done in super-resolution fluorescence microscopy methods such as STED or MINFLUX. We provide examples of the effects of different experimental factors such as polarization, aberrations, and misalignments of key optical elements. Finally, we present calculations of toroidal foci through an interface of different mediums, and, to our knowledge, the first calculations of toroidal foci generated in total internal reflection conditions. Program summary: Program Title: PyFocus CPC Library link to program files: https://doi.org/10.17632/sybnhnxbrt.1 Developer's repository link: https://github.com/stefani-lab/, https://pypi.org/project/PyCustomFocus/, https://pyfocus.readthedocs.io/ (user manual) Licensing provisions: MIT Programming language: Python 3.6 Nature of problem: Full vectorial calculation of focused of optical fields under realistic conditions, such as high numerical aperture, incident beams modulated in phase and/or intensity, and focusing through an interface or a multilayer system. Solution method: PyFocus incorporates all the equations necessary to calculate the focused optical field and provides suitable integration methods. Setting up of the parameters, running calculations, plotting and saving results can be done by means of a graphical user interface or high-level functions. Additional comments including restrictions and unusual features: In addition to the Python source code, an MS Windows executable is provided.
Cardiometabolic risk, biomarkers of low-grade subclinical inflammation and flavonoid intake: A cross-sectional study in Argentina
Cardiometabolic risk, biomarkers of low-grade subclinical inflammation and flavonoid intake: A cross-sectional study in Argentina
Baraquet, María Lucía; del Rosso, Sebastián; Oberto, María Georgina; Defagó, María Daniela; Perovic, Nilda Raquel
Background: Flavonoids, the most abundant polyphenols present in the diet, may help to reduce the risk of cardiometabolic disease. Hence, the aim of this study was to know the potential associations between flavonoid source food intake, markers of low-grade inflammation and cardiometabolic risk status. Methods: 194 adult subjects attending at the Cardiology Division, Hospital Nacional de Clínicas, Córdoba, Argentina participated in the study. A validated food-frequency questionnaire was applied to establish the flavonoid source food intake. Clinical-pathological and anthropometric variables [height, weight, and waist circumference, and serum concentrations of high-sensitive C-reactive protein (hs-CRP) and cytokines (INF-γ, TNFα, IL-6, IL-8, IL-10, IL-18, IL-23) were measured. A cardiometabolic risk clustering score was constructed and correlation's coefficients and multiple linear regression models were used to assess the relation between flavonoid source foods consumption of and markers of low-grade inflammation. Results: 40.4% of the subjects were obese and 60.3% showed a very high risk of developing cardiovascular diseases according to the WC classification. 43.3% had a high risk of cardiometabolic dysregulation and the hs-CRP levels indicated a high risk of developing cardiovascular disease in the future both in men and women. The predominant intake of flavonoids was from source food of flavanones, flavones and flavonols. Negative associations between isoflavone source food intake and TNFα, IL-6 and IL-8 concentrations (P ≤ 0.05) were observed. Conclusions: The results of the present study provide evidence of the inverse association between isoflavone source foods intake and inflammation. Further studies are needed to confirm retrieved association.
¿Turismo de la memoria?: Análisis del “Circuito de la Memoria” del EMATUR (2021) en La Plata (Buenos Aires, Argentina)
¿Turismo de la memoria?: Análisis del “Circuito de la Memoria” del EMATUR (2021) en La Plata (Buenos Aires, Argentina); Memory tourism?: Analysis of the EMATUR “Circuit of Memory” (2021) in La Plata (Buenos Aires, Argentina)
Zubillaga, Paula; Codaro, Laura
En este trabajo nos proponemos analizar la propuesta “Circuito de la Memoria”, organizada por el EMATUR de la ciudad La Plata, desde marzo de 2021. En este caso, se busca describir y reflexionar en torno a dos de las primeras experiencias que tuvieron lugar ese año: una realizada en bicicleta y otra en colectivo. Para eso, se observan distintos materiales (registros, folletería, audioguías) a la luz de un conjunto de textos sobre historia y memoria. Se trata de un trabajo exploratorio que posee dos apartados centrales que muestran que la propuesta no se inscribe en el turismo de la memoria ni hay actividades en pos de la transmisión de la memoria, sino que predomina el discurso expositivo.; In this article we try to reflect on the proposal “Circuit of Memory”, organized by the EMATUR of the city of La Plata, since March 2021. In this case, we want to describe and reflect on two of the first experiences that took place that year: one by bicycle and another by bus. For this, we take different materials (records, brochures, audio guides, etc.) and texts on history and memory. It is an exploratory article that has two central sections that show that the proposal is not part of memory tourism nor are there activities in pursuit of the transmission of memory, but that the expository discourse predominates.
Contrasting beach-ridge systems in different types of coastal settings
Contrasting beach-ridge systems in different types of coastal settings
Isla, Manuel Fermín; Moyano Paz, Damián; FitzGerald, Duncan M.; Simontacchi, Lautaro Ezequiel; Veiga, Gonzalo Diego
Beach-ridge systems are geomorphological features common in every type of coast and have been widely interpreted as geo-archives of past sea-level, climatic, or tectonic changes. These relict morphological elements are well-known by their facies, architecture, stratigraphy, and evolution. However, the coastal context where beach ridges are formed has never been evaluated. Coastal beach-ridge systems were classified into four main types corresponding to deltaic strandplains, non-deltaic strandplains, spits, and barrier islands. Our study consisted of three scales of analysis: (1) the entire beach-ridge system; (2) beach-ridge sets; and (3) individual beach ridges. Several beach-ridge systems having formed in different types of coastal settings are compared by their present characteristics. Geomorphic data generated from processing and interpreting satellite images combined with previous studies are used to quantify multi-scale attributes of beach-ridge systems. These attributes include the area, length, width, number of sets, number of ridges per set, set rotation, ridge spacing, and ridge elevation. Our findings demonstrate that significant differences define beach-ridge systems including deltaic strandplains, large non-deltaic strandplains, small non-deltaic strandplains, large spits (cuspate forelands), small spits (flying spits, bay-mouth spits and tombolos) and barrier islands. A more comprehensive characterization of the factors controlling beach-ridge variability will improve our ability to recognize the sedimentary record of ancient of these systems. The proposed basic platform can be used to isolated different beach-ridge types and systems to facilitate future process and morphodynamic studies.
Wilsher cervical forceps for artificial insemination technique in jennies
Wilsher cervical forceps for artificial insemination technique in jennies
Flores Bragulat, Ana Paula; Alonso, Carolina Natalia; Castañeira, Catalina; Losinno, Luis
The pregnancy rate after artificial insemination (AI) with fresh semen between jennies and mares seems to be similar.
Narrativas del acorralamiento: Identidad de Lugar en la Bahía de Coronel a partir de la reconversión productiva
Narrativas del acorralamiento: Identidad de Lugar en la Bahía de Coronel a partir de la reconversión productiva; Narratives of the cornering: Place identity in coronel bay from the productive reconversion
Bravo Ferretti, Cristóbal; Sandoval Díaz, José; Astudillo Pizarro, Francisco Segundo Cristian
El artículo analiza el proceso de construcción de identidad de lugar en la Bahía de Coronel en la Región del Bío-Bío en Chile en el contexto de industrialización reciente. Se adopta el concepto de zona de sacrificio para caracterizar la trayectoria de devastación socio-ambiental producida en el territorio. El estudio se focaliza en torno a tres referentes industriales implementados a partir de la reconversión productiva puesta en marcha en la década de 1990. Desde una perspectiva de historia ambiental híbrida y con un fuerte componente en el análisis de procesos contemporáneos, se utilizó un enfoque etnográfico que incluyó la realización de entrevistas y revisión de documentos, buscando poner en diálogo las fuentes cualitativas con un marco de procesos sociohistóricos más amplios. Se observó que las narrativas de identidad adoptan un carácter “residual” relacionado con el deterioro socio -ambiental y del bienestar de los residentes.; The article analyzes the process of place identity construction in the Coronel Bay in the Bío-Bío Region in Chile in the context of recent industrialization processes. The concept of the sacrifice zone is adopted to characterize the trajectory of socio-environmental devastation taken place in the territory. The study focuses on three industrial milestones settled since the productive reconversion launched in the 1990s. From a perspective of hybrid environmental history and with a strong component in the analysis of contemporary processes, an ethnographic approach was taken. This included interviews and document review, seeking to establish a dialogue between the qualitative sources and a framework of broader socio-historical processes. An ethnographic approach is used by means of interviews and document review. It was observed that the identity narratives adopt a “residual” character related to the socio-environmental deterioration and the well-being of the residents.
«La escalera se limpia de arriba para abajo, no al revés»: La Policía en el entramado de la experiencia penal juvenil en territorio
«La escalera se limpia de arriba para abajo, no al revés»: La Policía en el entramado de la experiencia penal juvenil en territorio; «The staircase is cleaned from top to bottom, not the other way around»: The police in the framework of the juvenile criminal experience in the territory
Nebra, Maria Julieta
En este artículo presentamos las distintas formas en las que la policía va (re)configurando la implementación de las medidas alternativas al encierro y/o al procesamiento judicial (MA) en el sistema penal juvenil. A partir de un trabajo etnográfico realizado en un Centrosociocomunitario de Responsabilidad Penal Juvenil (CESOC) en un municipio del conurbano bonaerense entre 2018 y 2019, relevamos los distintos tipos de hostigamiento policial que padecen los jóvenes (mayoritariamente varones) y sus consecuencias. Ponemos de manifiesto las violencias y el agravamiento de las causas judiciales, pero a la vez develamos algunas consecuencias más sutiles e igualmente perjudiciales que afectan a los jóvenes en su vida cotidiana y en las formas en las que sostienen las MA. Reponemos también, las implicancias de la territorialización de las MA, que suponen un acercamiento social, cultural, afectivo y geográfico de los/as trabajadores/as estatales hacia los jóvenes que permite matizar las «verdades policiales» en relación a su «peligrosidad». Si bien por un lado se observa que la mayoría de los/as actores/as del CESOC cuestionan el accionar policial, manifiestan cierto fatalismo en cuanto a los márgenes de acción y sus intervenciones se centran en que los jóvenes adecuen sus comportamientos para evitar el hostigamiento policial.; In this article we present the different ways in which the police (re)configures the implementation of alternative measures to confinement and/or judicial prosecution (MA) in the juvenile justice system. Based on an ethnographic study carried out in a SocioCommunity Center for Juvenile Criminal Responsibility (CESOC) in the suburbs of Buenos Aires between 2018 and 2019, we identified the different types of police harassment suffered by young people (mostly male) and its consequences. We highlight the violence and the aggravation of legal cases, but at the same time we reveal some more subtle and equally harmful consequences that affect young people in their daily lives and in the ways in which the MA develops. We also point out the implications of the territorialization of the MA, which suppose a social, cultural, affective and geographical approach of the state workers towards the young that allows qualifying the «police truths» in relation to their «dangerousness». Although on the one hand it is observed that most of the CESOC actors question police actions, they show a certain fatalism regarding the possibilities of action and their interventions focus on young people adapting their behavior to avoid police harassment.
The role of Nyctelia circumundata (Coleoptera: Tenebrionidae) on litter fragmentation processes and soil fertility in Northeastern arid Patagonia
The role of Nyctelia circumundata (Coleoptera: Tenebrionidae) on litter fragmentation processes and soil fertility in Northeastern arid Patagonia
Cheli, German Horacio; Bosco, Tomas; Flores, Gustavo Ernesto
Decomposition of organic matter and soil properties linked to carbon (C) and nitrogen (N) cycling are considered key processes in soil fertility. In arid ecosystems, most plant litter remains intact for long periods and is gradually consumed by macrodetritivore arthropods. Tenebrionid beetles (Coleoptera: Tenebrionidae) are the most abundant macrodetritivores in many arid environments worldwide, and it is widely suggested that these beetles are responsible for most of the nutrient cycling from accumulated litter in warm and dry seasons in these ecosystems. In this study, the role of Nyctelia circumundata Lesne (Coleoptera: Tenebrionidae) on soil fertility and litter fragmentation during the warm-dry season was experimentally evaluated in northeastern Patagonia, using microcosm experiments in the laboratory. Our results showed that the presence of litter alone is not enough to incorporate organic matter (OM), as well as nitrogen (N) or carbon (C) into the soil. Adult individuals of N. circumundata consumed a significant fraction of the litter offered in the experimental pots (~10 %) and this activity was also associated to increased soil N, C, and OM contents, and the C/N ratio. These facts highlighted that litter fragmentation, consumption, and its subsequent conversion into feces by N. circumundata positively affects soil fertility in northeastern Patagonia. Considering that tenebrionid beetles are a major group of primary consumers in deserts, these beetles play an important role in aboveground food web and a key energy conduit from plants (as litter) to higher trophic levels in this region. Finally, taking into account the ecological relevance of tenebrionid beetles for soil nutrient cycling (both at local and ecosytem scales) demonstrated in this work, we recommend incorporating these beetle assemblages into future conservation strategies for arid Patagonia.
Main agricultural production projects implemented by ex-combatants from “Héctor Ramírez” rural settlement located in La Montañita, Colombia
Main agricultural production projects implemented by ex-combatants from “Héctor Ramírez” rural settlement located in La Montañita, Colombia
Rojas Peña, Oscar Raul; Martinez Moyano, Edgar
This paper analyzed the importance of productive projects in the reintegration process of ex-combatants of the Revolutionary Armed Forces of Colombia (FARC), in the rural settlement “Héctor Ramírez” located in Caquetá, after the signing of the Colombian peace process in 2017. In this regard, the research was characterized by being a descriptive study as a qualitative approach, using the semi-structured interview as a data collection instrument applied to ex-combatants to recognize their expectations about the productive projects that they have been developing in the camp. It was found that ex-combatants reinvest the earnings received in productive projects to achieve, under their criteria, possibilities of growth and financial return for the long term. In addition, they hope that the Colombian government will support the improvement of the commercialization processes of the products generated in the different projects. In this way, the standards of well-being at the personal and community level will be improved.
Plan de Finalización de Estudios Primarios y Secundarios (Plan Fines): una aproximación a su evolución cuantitativa, 2008-2018
Plan de Finalización de Estudios Primarios y Secundarios (Plan Fines): una aproximación a su evolución cuantitativa, 2008-2018; “Completion of Primary and Secondary Education’s Plan (Plan Fines)”: a quantitative evolution, 2008-2018
de Luca, Romina
Este artículo presenta una primera reconstrucción sobre la evolución de la matrícula y la cantidad de sedes del Plan Fines (Plan de Finalización de Estudios Primarios y Secundarios), en Argentina y en la provincia de Buenos Aires. Se trata de un aporte al campo de estudios ya que, frente a la ausencia de datos sistemáticos oficiales suministrados por el Ministerio de Educación Nacional, aquí se sistematizan datos provenientes de fuentes no transitadas generalmente por quienes trabajan con estadísticas educativas. En particular, se cuantifican y sistematizan datos provenientes de los informes de la Jefatura de Gabinete de ministros al Congreso de la Nación y de las Cuentas de Inversión Nacional. A partir de la reconstrucción de la evolución cuantitativa, el trabajo busca problematizar, en el marco de una investigación más general, sobre la modalidad de educación destinada a jóvenes y adultos y la consolidación de un nuevo circuito diferente del tradicional.; This article presents a first reconstruction on the evolution of enrollment and the academic units of the Plan Fines (Completion of Primary and Secondary Education’s Plan -locally known as Plan Fines), at the national administration, in Argentina. The Buenos Aires province analyzes in secondary place. In the absence of official systematic data provided by the Ministry of Education of the Nation, here data from sources not generally inspected by researchers who works with educational statistics. Data from the reports of the Chief of Cabinet of Ministers to the National Congress and from the National Investment Accounts are quantified and systematized. Starting from the reconstruction of the quantitative evolution, this article problematizes, within the framework of a more general investigation, on the modality of education aimed at young people and adults and the consolidation of a new circuit different from the traditional one.
Comprensión lectora: intervención para su desarrollo en estudiantes de primer ciclo de la escolaridad primaria
Comprensión lectora: intervención para su desarrollo en estudiantes de primer ciclo de la escolaridad primaria; Reading comprehension: an intervention aimed to enhance its development in primary school children
Musci, María Cecilia; Picca, Romina; Barreyro, Juan Pablo; Brenlla, María Elena; Gottheil, Barbara
La comprensión lectora (CL) es un proceso cognitivo complejo que implica un conjunto de operaciones mentales que posibilitan la construcción de una representación integrada del texto. Se presentan resultados de un estudio en curso que apunta a evaluar la mejora en CL de niños de escolaridad primaria a partir de la implementación de un programa de intervención específico: Para Leerte Mejor (PLM) (Gottheil et al., 2017), que interviene sobre el conocimiento acerca del vocabulario, la autorregulación de la comprensión, el conocimiento de la estructura del texto y la generación de inferencias. Se trabajó con una muestra compuesta por 60 niños de 3° grado de escuelas de la zona del Alto Valle, de la Región Patagónica. Se optó por un diseño de tipo experimental, con grupo control en espera y otro de intervención, en modalidad longitudinal (pretest y postest). La intervención consistió en 20 sesiones de trabajo, con una frecuencia de dos veces por semana. Las evaluaciones pretest y postest se realizaron mediante pruebas que permiten identificar el desempeño en procesos cognitivos y metacognitivos vinculados con la CL, adaptadas para nuestro contexto. Los resultados permiten inferir que la intervención mediante el programa implicó una mejora significativa en la CL en general y en las habilidades centrales comprendidas en la misma, en comparación con los cambios que se producen mediante la enseñanza convencional. Se evidencia la importancia de la enseñanza explícita de estrategias y del trabajo sistemático sobre estas.; Reading Comprehension (RC) is a complex cognitive process that involves a set of mental operations that makes possible the construction of an integrated representation of the text. The results of an ongoing study are presented. It´s aims are to evaluate the improvement in RC of children in primary school after the implementation of a specific RC intervention programme: Para Leerte Mejor (PLM) (Gottheil et al., 2017), which intervenes on Knowledge about Vocabulary, Comprehension Monitoring, Knowledge of the Structure of the Text and Inference Generation. The research was made with 60 3er grade children from schools in the Alto Valle area, in the Patagonian Region. We opted for an experimental design with a waiting control group and an intervention design, in longitudinal mode (pretest and posttest). The intervention consisted of 20 working sessions, with a twice a week frequency. The pretest and posttest evaluations were carried out using tests that allow us to identify performance in cognitive and metacognitive processes linked to RC, which are adapted to our context. The results allow us to conclude that the intervention through the programme implied a significant improvement in RC in general and in the core skills included in it, compared to the changes that occur through conventional teaching. The importance of the explicit teaching of strategies and the systematic work on them is evident.
A imagen y semejanza: Sexo y cuerpo en las performance y videos posporno de Argentina
A imagen y semejanza: Sexo y cuerpo en las performance y videos posporno de Argentina; Image and likeness: Sex and body in post-porn performances and videos from Argentina
Milano, Laura Vanesa
Este artículo explora una de las dimensiones de la pospornografía y de su particular expresión situada: las representaciones del sexo y los cuerpos, en las performance y videos producidos en Argentina (2011-2015). Se indaga aquí en los modos en que se actualizó una discursividad queer/disidente respecto a las corporalidades y la sexualidad, a partir de la especificidad de laperformance y el video. La hipótesis que sostiene este trabajo supone que, a partir operaciones estéticas/políticas concretas, se construyó un porno a “imagen y semejanza” que actualizó ciertas nociones del cuerpo y a sexualidad desde una perspectiva sexo-disidente.; This article explores one of the dimensions of post-pornography and its particular situated expression: the representations of sex and bodies, in the performances and videos produced in Argentina (2011-2015). Here we investigate the ways in which a queer/dissident discourse regarding corporalities and sexuality was updated, based on the specificity of performance and video. The hypothesis that sustains this work assumes that, based on specific aesthetic/political operations, an "image and likeness" porn was built that updated certain notions of the body and sexuality from a sexdissident perspective.
Una selva sensorial: Espacialidad háptica en algunas instalaciones de Ernesto Neto
Una selva sensorial: Espacialidad háptica en algunas instalaciones de Ernesto Neto; A Sensorial Rainforest: Haptic Spatiality in Ernesto Neto’s installations
Depetris Chauvin, Irene
A partir de Soplo (2019), la retrospectiva de Ernesto Neto en el Museo de Arte Latinoamericano de Buenos Aires (MALBA), propongo abordar algunas esculturas e instalaciones interactivo-táctiles del artista brasileño poniendo en relación los debates que al interior del “giro afectivo” se desarrollan sobre las dimensión háptica y el afecto y los modos en que esta práctica artística se presenta como “cura” en un entorno natural en crisis. Por medio del trabajo sobre materiales “poco nobles” –especias aromáticas, hilos sintéticos, textiles– y técnicas artesanales de croché, las instalaciones escultóricas de Neto invitan a una experiencia sensorial que implica diferentes formas de percepción/inmersión. En el cruce entre la escultura, la instalación y el arte textil, Neto desafía al espectador a invertir la jerarquía entre los sentidos de la vista, el olfato y el tacto, al mismo tiempo que el carácter colaborativo de la obra involucra de manera activa no solo los procesos perceptivos, sino la relación entre los participantes. Este componente afectivo y performático de las prácticas hápticas y espaciales en las obras de Neto es central para articular “formas de estar en el mundo” más empáticas con el entorno y el universo de lo vivo.; In this article I study some sculptures and interactive-tactile installations of Brazilian artist Ernesto Neto in light of contributions on hapticity and affect from the field of “Affective Turn”, and considering how some art practices see themselves as a “cure” in a natural environment in crisis. By using everyday materials and techniques such as aromatic spices, synthetic threads, textiles, and crochet, Neto’s sculptural installations invite a sensory experience that involves different modes of perception/immersion. At the crossroads between sculpture, installation and textile art, his works challenge the viewer to invert the hierarchy between the senses of sight, smell and touch, at the same time that the collaborative nature of the work produces a physical experience that actively influences the relationship between the participants. This affective and performative component of the haptic and spatial practices in Neto’s works is central to the articulation of “new ways of being in the world” that are more empathic with the environment, and with the universe of the living.
Las revistas médicas y bioquímicas argentinas en la encrucijada: Tensiones entre la visibilidad internacional y la resistencia lingüística
Las revistas médicas y bioquímicas argentinas en la encrucijada: Tensiones entre la visibilidad internacional y la resistencia lingüística; Medical and biochemical journals in Argentina at a crossroads: Tensions between international visibility and linguistic resistance
Von Stecher, Pablo
Este trabajo observa las revistas argentinas de medicina, bioquímica y farmacología con el fin de estudiar qué lenguas admiten para la difusión de artículos y cómo se posicionan frente a la supremacía actual del inglés en la comunicación científica. El análisis, sobre 59 revistas, expone una variedad de posturas entre las publicaciones monolingües que defienden el uso del español o del inglés, hasta las propuestas plurilingües que incorporan el portugués o editan dos versiones de los artículos en distintas lenguas. El trabajo se inscribe en un enfoque glotopolítico, interesado en estudiar las intervenciones en el espacio público del lenguaje.; This study analyses medical, biochemical, and pharmaceutical journals in Argentina to ascertain the languages in which they accept articles and their stance on the current supremacy of English in scientific communication. The analysis encompasses 59 different journals and highlights a variety of approaches, which range from monolingual publications that defend the use of Spanish or English to multilingual journalshat include Portuguese or publish two versions of the articles in different languages. The study takes a glottopolitical approach, seeking to study interventions in the public space of language.
40 años después: memorias, archivos y representaciones de la cuestión Malvinas
40 años después: memorias, archivos y representaciones de la cuestión Malvinas
Perera, Verónica; Gamarnik, Cora Edith; Guembe, María Laura
Las efemérides suelen volverse escenarios que muestran conflictos entre actores sociales. En esas fechas calendarizadas desde el Estado, los sujetos individuales y colectivos reordenan el pasado, lo vuelven legible y lo disputan según sus anhelos y necesidades del presente. Al momento de presentar este dossier, en junio de 2022, aún se suceden conmemoraciones y reuniones, eventos culturales y académicos que recuerdan y reflexionan sobre la guerra y la posguerra de Malvinas ocurrida en 1982.Es todavía temprano, entonces, para establecer las novedades memoriales que este 40 aniversario trajo aparejado. Sería prematuro identificar el índice histórico de las imágenes que recién ahora alcanzan legibilidad, como lo diría Benjamin. Pero podemos bosquejar, con prudencia, algunas nuevas visibilidades y ciertas persistencias en los modos de pensar “Malvinas”. En 2022, cobró mayor visibilidad la participación de las mujeres en el conflicto bélico. No hay registro unificado ni archivo que permita establecer exactamente cuántas fueron las enfermeras y aspirantes a enfermería, instrumentadoras quirúrgicas, radioperadoras y radiotelegrafistas que, desde las tres fuerzas armadas y con experiencias muy disímiles, participaron directamente en la guerra de 1982 (Salerno, 2022).Estuvieron ausentes en las memorias dominantes y las historias oficiales hasta hace diez años (Panero, 2012). Solo algunas fueron reconocidas como veteranas (recientemente con derecho a pensión de guerra vitalicia), mientras la mayoría sigue reclamando reconocimiento simbólico y material al Estado democrático.
O Brasil na América Latina
O Brasil na América Latina
Blanco, Alejandro Raul; Jackson, Luiz Carlos
O artigo contextualiza os processos de produção e circulação do livro Dependência e desenvolvimento na América Latina (1969), de Fernando Henrique Cardoso (1931-) e Enzo Faletto (1935-2003). Realizado em parceria pelos dois sociólogos, no interior de um espaçotransnacional das ciências sociais da década de 1960, que envolvia instituições como a Cepal, o Ilpes e a Flacso, o livro teve como estribos as experiências mais bem-sucedidas de institucionalização nacional e transnacional das ciências sociais na região, as do Brasil e do Chile, e foi publicado em espanhol pela editora mexicana Siglo XXI, em boa medida responsável por seu sucesso comercial excepcional, de um best seller da sociologia latinoamericana.; The article contextualizes the processes of production and circulation of the book Dependency and Development in Latin America (1969), by Fernando Henrique Cardoso (1931-) and Enzo Faletto (1935- 2003). Produced in partnership by the two sociologists, within a transnational space of the social sciences in the 1960s, which involved institutions such as Cepal, Ilpes and Flacso, the book was based on the most successful experiences of national and transnational institutionalization of social sciences in the region, those of Brazil and Chile; it was published in Spanish by Mexican publisher Siglo XXI, largely responsible for its exceptional commercial success, of a best seller in Latin American sociology.
Cono sur, autoritarismos y disidencias sexo-genéricas Introducción al número temático
Cono sur, autoritarismos y disidencias sexo-genéricas Introducción al número temático; Southern Cone, authoritarianism, and sex-generic dissidences Introduction to the thematic volume
D´antonio, Débora Carina; Sempol, Diego
A nivel regional durante los últimos quince años se viene desarrollando dentro de los estudios sobre el pasado reciente y la memoria, un subcampo en dondese entrecruzan las investigaciones sobre sexualidades disidentes sexo-genéricas yel análisis de los procesos autoritarios del Cono Sur. Este diálogo permitió visualizar toda una gama de violencias sociales y estatales que históricamente habíansido naturalizadas, así como promovió acercamientos analíticos más integralesa los procesos históricos y a los límites que tuvieron en su momento, tanto losproyectos de emancipación en las izquierdas, como el propio paradigma de los derechos humanos. Es posible entonces construir una genealogía regional del encuentro entre los estudios sobre los procesos autoritarios y el de las sexualidades en conflicto con la heteronorma. A nivel académico se podría situar el punto de emergencia de este diálogo con el trabajo pionero de Rapisardi y Modarelli (2001), que analizó por primera vez las diferentes formas de persecución que enfrentaron los homosexuales porteños y las estrategias de resistencia que desplegaron para sobrevivir durante la última dictadura argentina (1976-1983).2 Bajo el interrogante de ¿cómo hicieron los gais para seguir siendo gais en la dictadura? se dejó planteada la cuestión sobre la sociabilidad homosexual en épocas de autoritarismo y la cuestión de una cultura festiva como transgresión, y hasta cierto punto se forjó un «relato maestro» sobre la experiencia de los homosexuales durante este período, así como también sobre los primeros años de la democracia. No obstante, el tema continuó siendo marginal dentro de los estudios del pasado reciente por largo tiempo.
Lengua, enunciación, discurso: un estudio sobre la noción de subjetividad en algunas propuestas lingüísticas
Lengua, enunciación, discurso: un estudio sobre la noción de subjetividad en algunas propuestas lingüísticas; Language, enunciation, discourse: a study on the notion of subjectivity in some linguistic proposals
Savio, Ana Karina
Este artículo busca ubicar, interrogar y analizar qué se interpreta por subjetividad en determinados enfoques provenientes de los estudios del lenguaje. En este sentido, se han incluido autores representativos que se inscriben dentro de la tradición enunciativa y algunos procedentes del análisis del discurso, que se valen de la enunciación para problematizar su naturaleza, a saber: Arnauld y Lancelot, Bally, Benveniste, Jakobson, Culioli, Ducrot, Kerbrat-Orecchioni, Maingueneau y Pêcheux. Este escrito está organizado siguiendo tres ejes: las definiciones de enunciación establecidas en los textos seleccionados, los modos en que en estas elaboraciones se entiende la lengua y su articulación (o no) con el pensamiento, y las formas en que circula(n) la(s) subjetividad(es) y sus implicancias. Este recorrido ha permitido identificar las distintas concepciones relativas a la dimensión enunciativa y a la relación lengua/pensamiento que atraviesan los desarrollos teóricos abordados, y ha reconocido dos modos de pensar la subjetividad: una subjetividad constituyente, en la que el sujeto es causa, origen; y una subjetividad constituida, en la que el sujeto es efecto. Sin embargo, se advierten diversos matices que singularizan las distintas propuestas.; The purpose of this article is to locate, question and analyze what is understood by subjectivity in certain approaches coming from language studies. In this respect, representative authors have been included who are part of the enunciative tradition, and some are from discourse analysis who use enunciation to question its nature, namely: Arnauld and Lancelot, Bally, Benveniste, Jakobson, Culioli, Ducrot, KerbratOrecchioni, Maingueneau and Pêcheux. This paper is organized along three axes: the definitions of enunciation established in the selected texts, the ways in which language and its articulation (or not) along with thought are understood in these elaborations, and the ways in which subjectivity(ies) circulate(s) and their implications. This journey has made it possible to identify the different conceptions related to the enunciative dimension and to the language/thought relationship that cross the theoretical developments addressed, and has recognized two ways of thinking about subjectivity: a constituent subjectivity, in which the subject is cause, origin; and a constituted subjectivity, in which the subject is effect. However, there are various nuances that distinguish the different proposals.
Optimization of the processing conditions for producing osmo-dehydrated arazá (Eugenia stipitata, McVaugh) and evaluation of its antioxidant content and activity
Optimization of the processing conditions for producing osmo-dehydrated arazá (Eugenia stipitata, McVaugh) and evaluation of its antioxidant content and activity
Reyes Alvarez, Camilo Andres; Gamboa, Juliana; Lanari, María Cecilia
BACKGROUND: Arazá, a tropical berry rich in thermolabile antioxidants (ascorbic-acid/phenolics/flavonoids/carotenoids), is a potential ingredient for preparing functional foods; however, its high perishability hinders its industrial application. Osmotic-dehydration (OD), a processing method that operates at low temperature ranges, may be adequate for improving arazá's shelf-life without reducing its palatability/nutritional quality. Physicochemical and nutritional properties depend on the time/temperature/osmotic-solution concentration applied; therefore, parameters optimization is required. Processing selection must also consider treatment effect on antioxidants composition/activity/bioaccessibility in the gastro-intestinal (GI) tract, key factors in bioactives health benefits. OBJECTIVES: a) Optimize OD duration/temperature/sucrose concentration to maximize process efficiency/total-polyphenol content/overall-acceptability using principal component analysis and Response-Surface-Methodology/Desirability-Function. b) Determine OD effect on antioxidant content/activity/bioaccessibilities before and after gastro-intestinal digestion. RESULTS AND CONCLUSIONS: Processing conditions have opposite effects on sensory and chemical properties; reaching antioxidant content/activity highest levels in the osmo-dehydrated fruit required 60 min/20°Bx; whereas, the best organoleptic scores demanded 180 min/60°Bx. Although osmotic-drying reduced the fruit's antioxidant content/activity 39-76%, the process improved antioxidants bioaccessibilities, since these values were: 63-85% (untreated fruit) and 72-90% (osmodehydrated arazá (ODA)), whereas the activity retention levels were 67-76% (untreated fruit/ODA).
Postmortem interval estimation with Dermestes maculatus (Coleoptera: Dermestidae) and Chrysomya albiceps (Diptera: Calliphoridae) in Colombia
Postmortem interval estimation with Dermestes maculatus (Coleoptera: Dermestidae) and Chrysomya albiceps (Diptera: Calliphoridae) in Colombia; Estimación del intervalo post mortem con Dermestes maculatus (Coleoptera: Dermestidae) y Chrysomya albiceps (Diptera: Calliphoridae) en Colombia
Zanetti, Noelia Inés; Ramos Pastrana, Yardany; Córdoba Suarez, Eric
Insects attracted to cadavers can be used to estimate postmortem interval (PMI). In this study, a sample of insects associated with a dressed human cadaver that was enclosed with a woolen blanket tied to a stone in a closed and aquatic environment was found and analyzed to determine PMI. Inmature stages and adults of Chrysomya albiceps and Dermestes maculatus were collected. Furthermore, an experience with a pig carcass was conducted under the same conditions the human cadaver was found to verify the emersion time. This began 3 days after carcass submersion. mPMI was 20 days and approximately 1.5 h. The data present in this work illustrates the use of D. maculatus and C. albiceps to determine time of death under particular conditions, being the beetle species the first colonizer.; Los insectos atraídos a cadáveres pueden ser usados para estimar el intervalo post mortem (IPM). En este estudio, una muestra de estados inmaduros y adultos de Dermestes maculatus y Chrysomya albiceps fueron recolectados en asociación con un cadáver humano en un ambiente cerrado y acuático en Caquetá, Colombia, y analizada para determinar el IPM. Además, se condujo un experimento con un cadáver porcino para estimar el tiempo de emersión, que comenzó tres días después de la sumersión del cadáver. El IPM mínimo fue 481.5 horas. El tiempo de muerte, tiempo de emersión y el periodo de actividad insectil coincidieron con las acciones de los sospechosos del crimen, quienes confesaron haber asesinado a la víctima 25 días antes del descubrimiento del cadáver.
Páginas
