Confines de lo humano: tres aspectos de la vida primaria en Clarice Lispector

El presente trabajo busca recorrer algunas de las obras de Clarice Lispector teniendo como eje de análisis la relación que su literatura entabla con la postulación de una vida primaria que nunca termina de definirse. Herida, carencia o materia divina, la vida primaria devenida concepto crítico permite leer los textos lispectorianos, y en especial La hora de la estrella, como modos de acercamiento a diferentes configuraciones de lo viviente.The present paper aims to explore some of the work of Clarice Lispector, and the axis of analysis is the relationship that her literature engages with the postulation of a primary life that never ends to be defined. Wound, lack or divine matter, the primary life becomes critical concept allows reading the Lispector’s works, and A Hora da Estrela in particular, as ways of approach to different configurations of the living thing.Fil: Kogan, Adriana Leticia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Filosofía y Letras; ArgentinaFil: Penacini, María Constanza. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Filosofía y Letras; ArgentinaFil: Cabezas Baamonde, Laura María Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Filosofía y Letras; ArgentinaFil: Cámara, Mario Cesar. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Filosofía y Letras; Argentin

Pion production in the inner disk around Cygnus X-1

Neutron production via ^{4}He breakup and p(p, n{pi}^+)p is considered in the innermost region of an accretion disk surrounding a Kerr Black Hole. These reactions occur in a plasma in Wien equilibrium, where (radiatively produced) pair production equals annihilation. Cooling of the disk is assumed to be due to unsaturated inverse Comptonization of external soft photons and to the energy needed to ignite both nuclear reactions. Assuming matter composition of 90% Hydrogen and 10% He, it is shown that, close to the border of this region, neutron production is essentially from ^{4}He breakup. Close to the horizon, the contribution from p(p, n{pi}^+)p to the neutron production is comparable to that from the breakup. It is shown that the viscosity generated by the collisions of the accreting matter with the neutrons may drive stationary accretion, for accretion rates below a critical value. In this case, solution to the disk equations is double-valued and for both solutions protons overnumber the pairs. It is claimed that these solutions may mimic the states of high and low luminosity observed in Cygnus X-1 and related sources. This would be explained either by the coupling of thermal instability to the peculiar behavior of the viscosity parameter alpha with the ion temperature that may intermittently switch accretion off or by the impossibility of a perfect tuning for both thermal and pair equilibrium in the disk, a fact that forces the system to undergo a kind of limit cycle behavior around the upper solution.Comment: 23 pages, 11 figure

First Argentine Catheter Ablation Registry

La electrofisiología cardíaca ha tenido en los últimos años un desarrollo muy importante dentro del aspecto terapéutico de las arritmias cardíacas gracias a la implementación de procedimientos invasivos como la ablación con catéter de sustratos, focos y circuitos arritmogénicos a través de la aplicación de corriente de radiofrecuencia. El Consejo de Electrofisiología de la Sociedad Argentina de Cardiología decidió realizar un registro de este procedimiento con la participación libre y anónima de los principales laboratorios de electrofisiología de nuestro país.Conocer el número de procedimientos de ablación con catéter, datos epidemiológicos de los pacientes, indicaciones más frecuentes, resultados y complicaciones a través de la información suministrada por los centros participantes en el período estudiado.Material y métodos(Resumen completo en PDF) Objetivos  Se realizó un registro prospectivo y consecutivo de los procedimientos informados desde noviembre de 2007 hasta marzo de 2009 (16 meses). 

Strepsiptera brasileiros. IV: revisão e redescrição do gênero Brasixenos Kogan & Oliveira, 1966 (Stylopidae)

Brasixenos Kogan & Oliveira, 1966 (Strepsiptera, Stylopidae) é revisto; sete espécies são redescritas e é descrita como nova B. myrapetrus (localidade-tipo: Brasil, São Paulo, em Polybia (Myrapetra) paulista - Vespidae).<br>Brasixenos Kogan & Oliveira, 1966 (Strepsiptera, Stylopidae) is revised; seven species are redescribed, and one, B. myrapetrus, is proposed as new (type-locality): Brazil, São Paulo, in Polybia (Myrapetra) paulista - Vespidae)

In-hospital and 6-month outcomes in patients with COVID-19 supported with extracorporeal membrane oxygenation (EuroECMO-COVID): a multicentre, prospective observational study

Extracorporeal membrane oxygenation (ECMO) has been widely used in patients with COVID-19, but uncertainty remains about the determinants of in-hospital mortality and data on post-discharge outcomes are scarce. The aims of this study were to investigate the variables associated with in-hospital outcomes in patients who received ECMO during the first wave of COVID-19 and to describe the status of patients 6 months after ECMO initiation