295 research outputs found
Tutela jurisdireccional de los derechos individuales homogéneos: la necesidad de un marco normativo adecuado
No full textLa irrupción en nuestro derecho de la categoría de los “intereses individuales homogéneos”, para el tratamiento judicial de los conflictos colectivos, impone el análisis de su compatibilidad con el ordenamiento jurídico vigente, y ciertas consideraciones respecto de su admisibilidad constitucional. Previo análisis crítico de la escasez normativa en la materia, se hace evidente la necesidad de una regulación de procesos especiales que resulte eficiente para dar respuesta jurisdiccional a casos de afectaciones masivas de derechos, y que cuente con principios generales que respondan a la problemática social subyacente. Ha de justificarse la consagración legislativa del proceso colectivo, no sólo en motivos pragmáticos y económicos, sino básicamente en los mandatos constitucionales de afianzar la justicia y de proveer a la población de una real tutela judicial efectiva.Fil: Ramirez, Amelia Sara. Universidad FASTA. Facultad de Ciencias Jurídicas y Sociales; Argentina.Fil: Guiridlian Larosa, Javier Darío. Universidad FASTA. Facultad de Ciencias Jurídicas y Sociales; Argentina.Fil: Jaime, Facundo. Universidad FASTA. Facultad de Ciencias Jurídicas y Sociales; Argentina
A new species of Drymusa Simon, 1891 (Araneae: Drymusidae) from Chile
No full textA new species of Drymusa Simon, 1891, from Region VII, Chile, is described and illustrated. The female genitalia is quite different from the other Drymusa species and even from most of the Scytodoidea, having two sclerotized sulci above the epigastric furrow that seemingly provide a guide for the embolus. The male copulatory bulb is also quite different from the other species, having a very long and flexible embolus. This Chilean species is the seventh species of Drymusa described from South America. The presence of a double row of teeth on the ventral surface of the proclaw and a single row on the retroclaw of legs I and II found on this and on other species of Drymusa provides further evidence to support the relationship between Drymusidae Simon, 1891, Periegopidae Simon, 1893 and Scytodidae Blackwall, 1864.Fil: Labarque, Facundo Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; ArgentinaFil: Ramirez, Martin Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentin
Ovinos genéticamente resistentes a los parásitos
No full textLas parasitosis gastrointestinales (PGI) son uno de los mayores problemas de los sistemas productivos ovinos en las regiones
templadas, subtropicales y tropicales. Estas provocan pérdidas económicas debido a la disminución de la producción,
elevados costos de tratamientos y provocando muerte de animales. Haemonchus spp. es el parásito más difundido y que
mayores perjuicios produce.EEA MercedesFil: Cetra, Bibiana Maria. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Mercedes; ArgentinaFil: Poli, Mario Andres. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Genética; ArgentinaFil: Rivero, Luis Domingo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Mercedes; ArgentinaFil: Maizon, Daniel Omar. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Anguil; ArgentinaFil: Ramirez, Facundo. Actividad privada; Argentin
The placement of the spider genus Periegops and the phylogeny of Scytodoidea (Araneae: Araneomorphae)
No full textThe relationships of Scytodoidea, including the families Drymusidae, Periegopidae, Scytodidae and Sicariidae, have been contentious for a long time. Here we present a reviewed phylogenetic analysis of scytodoid spiders, emphasizing Periegops, the only genus in the family Periegopidae. In our analysis the Scytodoidea are united by the fusion of the third abdominal entapophyses into a median lobe, the presence of female palpal femoral thorns and associated cheliceral stridulatory ridges, a membranous lobe on the cheliceral promargin, and the loss of minor ampullate gland spigots. A basal split within Scytodoidea defines two monophyletic groups: Sicariidae and a group formed by Scytodidae as the sister group of Periegopidae plus Drymusidae, all united by having bipectinate prolateral claws on tarsi I–II, one major ampullate spigot accompanied by a nubbin, and the posterior median spinnerets with a mesal field of spicules. Periegops is the sister group of Drymusidae, united by the regain of promarginal cheliceral teeth and a triangular cheliceral lamina, which is continuous with the paturon margin.Fil: Labarque, Facundo Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”; ArgentinaFil: Ramirez, Martin Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”; Argentin
Book Review. Nous autres réfugiés. Hannah Arendt. París: Allia, 2019, 43 pp
No full textNous autres réfugiés [We refugees], is the title of a brief but disruptive essay that in January 1943, at 37 years old, Hannah Arendt [1906-1975] published in the American Jewish magazine The Menorah Journal (Arendt, 1943). The article —which has an obvious autobiographical connotation, although how much existential reflection that is positioned from the point of the refugee's point of view cannot be reduced solely to thisdimension—was posthumously reprinted in The Jew as Pariah,edited by Ron H. Feldman (1978, pp. 55-56) and on compiled together with forty other texts by the author, written between the 1930s and 1960s, in the edition prepared by Feldman and Jerome Kohn from his The Jewish Writings (2007, pp. 264-274)
Cultural representation of sexual dissent in comics: the "desired men" of Ralf König in Der bewegte Mann
No full textEn este artículo se abordará la representación de la sexualidad disidente en una de las obras inaugurales de Ralf König, el ciclo Der bewegte Mann, constituido por dos partes publicadas en los años ochenta y que nos permiten apreciar la emergencia del autor en el mercado editorial alemán, así como sus operaciones de resistencia ante los intentos de normalización y represión por parte de la heteronormatividad.In this article, the representation of sexual dissent in German author Ralf König will be adressed. The work analize the cycle Der bewegte Mann, consisting of two parts published in the eighties and that allows us to appreciate the emergence of the author in the german publishing, as well as its operations of resistance to the attempts of normalization and repression by heteronormativity.Fil: Saxe, Facundo. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación. Instituto de Investigaciones en Humanidades y Ciencias Sociales (UNLP-CONICET); Argentina
El Facundo de Sarmiento : una lectura a la edición de 1851
No full textResumen: El artículo aborda al Facundo de Domingo Faustino Sarmiento desde su historia como publicación, particularizando en la edición del año 1851 titulada Vida de Facundo Qiroga i aspecto fisico, costumbres y hábitos de la República Argentina, seguida de apuntes biográificos sobre el jeneral frai Felix Aldao. Para esta versión, respecto a los primigenios Facundo de 1845, el autor cambio el título, quitó capítulos y agregó una biografía sobre Félix Aldao. Observando esas particularidades se explora la coyuntura de edición desde algunos textos sarmientinos con el fin de interpretar el nuevo contenido. En ese trayecto necesariamente se establece un diálogo con lecturas del siglo XIX y XX que permiten sumar elementos sobre la manera de comprender el Facundo.Abstract: This article analyses Domingo Faustino Sarmiento’s Facundo editions since its first publication, particularly focusing on an 1851 edition titled Vida de Facundo Quiroga i aspecto fisico, costumbres y hábitos de la República Argentina, seguida de apuntes biográficos sobre el general frai Felix Aldao. With respect to previous editions from 1845, in 1851 the author made several revisions of the work: the book title was changed, some chapters were removed, and biographical notes about the general frair Feliz Aldao were added. Taking into account these modifications, the historical context can be examined through the changes introduced in the content of Sarmiento’s pieces of writing. Also, in order to improve the comprehension of Facundo publications in its context, a necessary connection is established between the book and pieces of writing of other authors from the 19th and 20th C
Drymusa serrana Goloboff & Ramirez 1991
No full textDrymusa serrana Goloboff & Ramírez, 1991 (Figs. 1–23) Type. Male holotype (MACN-Ar 8752) from Argentina, Buenos Aires Province, Sierra de la Ventana, Oct. 1980, P. Goloboff and A. Zanetic cols., examined. Other examined material. Argentina: Buenos Aires Province: Sierra de la Ventana, Parque Provincial Ernesto Tornquist, Cueva del Toro (38º 1.142' S; 62º 0.97' W), 10 Jan 2005, G. Binford, J. Miller, F. Labarque and C. Ellison cols., 1♀ (MACN-Ar 11017), 2♀ (MACN-Ar 11018, 11020), 1 penultimate ♀ (MACN-Ar 11019), 2♂ (MACN-Ar 11021, 11022); same data as holotype, 4 immatures (MACN-Ar 8754); same locality, 26 May 1990, Anghilante col., 1 immature (MACN-Ar 11023); Oct–Nov 1964, Gallardo col., 1 immature (MACN-Ar 11024). San Luis Province: Merlo (32º 21.434' S; 64º 56.786' W), 31 Dec 2004, G. Binford, J. Miller, F. Labarque and C. Ellison cols., 2♀ (MACN-Ar 11012, 11015), 2 penultimate ♀ (MACN-Ar 11013, 11016), 3♂ (MACN-Ar 10790, 11011, 11014); Villa Elena, 10–11 Nov 1982, E. Maury col., 1 immature (MACN-Ar 8789). Diagnosis. The female of D. serrana is distinguished from the other species by the presence of two sclerotized lips on the epigastric furrow (Figs. 4–6, 8) and spermathecae with tubular receptacula associated (Figs. 9–14). Description of female (MACN-Ar 11017): Carapace orange slightly darker at margins, with two brownish dark spots forming a "V" and three lateral radial lines (Figs. 1, 7), darker zones with thicker setae. Eye area brownish. Abdomen gray with brownish chevron, cardiac area dark (Figs. 1–3, 7). Total length, 10.76. Cephalothorax 4.80 long, 3.72 wide, low and flattened, without fovea. Chelicerae with two teeth and a lamina in the promargin and two small teeth in the retromargin; fangs short, stout, curved. Endites elongated, converging in front of the labium, with fleshy apical edge. Labium 1.36 long, 1.02 wide, separated from sternum by a suture. Sternum 2.22 long, 1.90 wide, rounded posteriorly. Leg measurements: Femur: I: 12.06, II: 10.43, III: 7.82, IV: 10.43; Patella: I: 1.50, II: 1.44, III: 1.34, IV: 1.20; Tibia: I: 11.90, II: 10.11, III: 7.34, IV: 9.78; Metatarsus: I: 11.74, II: 9.78, III: 7.34, IV: 9.78; Tarsus: I: 2.14, II: 1.90, III: 1.64, IV: 2.12; Total: I: 39.34, II: 33.66, III: 25.47, IV: 33.31. Tibiae and metatarsi without recurved setae, only with filiform and spiniform setae. Tarsi long and thin, ventral face with abundant setae, with thick setae beneath third claw, and well developed onychium. The superior claws of the anterior two pairs of legs with a double row of teeth on the ventral surface of the proclaw and a single row on the retroclaw. Paired claws of tarsi I with 15 teeth and of tarsi IV with 19. Abdomen elongated, posteriorly acute; without cuticular wrinkles. Colulus evident. Spinnerets arrangement: Anterior lateral spinnerets with two major ampullate gland spigots, posterior spigot smaller; posterior median spinnerets with a field of spicules on the median surface and posterior lateral spinnerets with several spigots. Genital area with a raised lip posterior to the epigastric furrow, more sclerotized at the sides, bearing thick setae; without sclerotized plates (Fig 4–6, 8) around genital area. Vulva with a pair of small oval spermathecae, irregular or tetrahedral, with or without one to three tubular receptacleson each side (Figs. 9-11). The number and presences of tubular receptacles are variable in other females, often asymmetrical (Figs. 12–14). Variation. Females (n = 6). Total length 10.76–9.70. Cephalothorax, 4.80-4.12 long, 3.72–3.00 wide. Femur I: 12.06–9.05. The extremes are specimens MACN-Ar 11017 (larger) and MACN-Ar 11015 (smaller). Internal genital area differs between specimens. Spermathecaes can be oval, tetrahedral, or more irregular and tubular receptacles could differ in shape and number, sometimes absent on one or both sides (Figs. 9–14). Males (n = 6). Total length 9.13–6.30. Cephalothorax, 3.72–2.68 long, 3.16–2.12 wide. Femur I: 13.69–8.08. Measurements from specimens MACN-Ar 11022 (larger) and MACN-Ar 11014 (smaller). Description of egg-sacs. Here we described the egg-sacs of D. serrana for the first time. We found four egg-sacs in total, each of them associated with a female, in a superficial cavity (Cueva del Toro). One of them was not accessible for collection (but was photographed, see Fig. 19). One egg-sac contained 41 eggs, the other two 78 and 51 spiderlings. The egg-sacs are spherical to oval in shape, larger than the female body. The internal silk lining is white, finely meshed, and the external surface is covered with debris, like prey remains, pieces of exuviae, pieces of leaves, and other detritus. The sacs were found hanging on the webs, attached by several threads (Figs. 16–19). Description of web. The webs of D. serrana were found attached to large supporting objects such as the crevices in the cave's walls (Figs. 15, 19) or under rocks (Figs. 21–22). The spiders rested on the underside of the web (Figs. 15, 16) and also layed their eggs there (Figs. 16–19). The lines in the sheet were not arranged in geometrically regular arrays; there were straight lines under tension (arrows T, Figs. 15, 20–22), connected by loose lines that sagged when dusted with cornstarch (arrows L, Figs. 15, 20, 22). The tense lines have multiple anchor points attaching to the surface (arrows B, Figs. 20, 23). We also found a web with a deviating sort of pattern (Fig. 23) under rocks, parallel to the surface. Natural history. The male holotype was found near the Cerro de La Ventana (Buenos Aires Province, Argentina), under big rocks in stream creeks (Goloboff & Ramirez, 1991). The new specimens collected in Sierra de La Ventana were found inside a shallow cavity, Cueva del Toro, at 565 meters of elevation, near the type locality. The cave has an entrance of six meters in diameter that drops 10 meters before choking off. The spiders were hanging in their webs, more or less at a distance of one meter from the ground, between the crevices of the wall (Figs. 15–16, 19). All the samples were found in the inner half of the cave, which was wetter and darker than the outer half. These spiders were larger than the male holotype and also than the specimens from Merlo, San Luis Province. The specimens from Merlo were collected under a pile of rocks mixed with soil, covering tree roots inside an old construction without roof made with those rocks. The spiders were hanging in their webs at the inner side of the rocks (Figs. 21–22), where they moved quickly and gracefully.Published as part of Labarque, Facundo M. & Ramírez, Martín J., 2007, Description of the female of Drymusa serrana Goloboff & Ramírez, 1991 (Araneae: Drymusidae) with notes on its biology, pp. 27-33 in Zootaxa 1580 on pages 28-3
A computational method for modeling the multi-physical interactions of electromagnetic wind energy harvesters in tandem arrangement
No full textThis work presented a coupled formulation for evaluating the interaction of multiple inductive energy harvesters. The multi-physics problem of Fluid–Structure Interaction (FSI) and electromagnetic induction was addressed through a coupled model based on Computational Fluid Dynamics (CFD) approach and an electro-mechanical formulation.The Navier–Stokes equations were coupled to those of an oscillating rigid body and the Faraday's law of induction for representing the electromagnetic vibration transducers. The proposed model was implemented by developing an OpenFOAM library. A finite element model (FEMM) was used for obtaining the magnetic flux derivative. The library was configured to map out the electromagnetic field and mechanical properties for each harvester and then, the electro-mechanical equations were solved by the explicit Runge–Kutta 2nd order scheme. For validating the coupled formulation, numerical simulations of an inductive energy harvester composed of two cylinders in tandem were conducted and compared to experiments published in the scientific literature. In order to demonstrate that the proposed formulation could be suitable for modeling complex configurations of harvesters, numerical simulations of three electromagnetic energy harvesters in array were executed and their performance was evaluated.Fil: Ramirez, Jose Miguel. Universidad Tecnologica Nacional. Facultad Regional Bahia Blanca. Grupo de Investigacion En Multifisica Aplicada. - Comision de Investigaciones Cientificas de la Provincia de Buenos Aires. Grupo de Investigacion En Multifisica Aplicada.; ArgentinaFil: Castañon, Facundo. Universidad Tecnologica Nacional. Facultad Regional Bahia Blanca. Grupo de Investigacion En Multifisica Aplicada. - Comision de Investigaciones Cientificas de la Provincia de Buenos Aires. Grupo de Investigacion En Multifisica Aplicada.; ArgentinaFil: Espeche, Julián Cesar. Universidad Tecnologica Nacional. Facultad Regional Bahia Blanca. Grupo de Investigacion En Multifisica Aplicada. - Comision de Investigaciones Cientificas de la Provincia de Buenos Aires. Grupo de Investigacion En Multifisica Aplicada.; Argentin
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