Organizar la Juventud. Un estudio etnográfico comparativo sobre experiencias juveniles de organización gremial

El objetivo de esta investigación es avanzar en una caracterización analítica de experiencias juveniles actuales de organización gremial, esbozando ejes de análisis y problematización respecto de las formas y sentidos de la organización gremial de trabajadores/as jóvenes, sus formas de acción, organización y demanda y las tramas de relaciones en que las llevan adelante. Desde un enfoque antropológico político, a través de un análisis etnográfico, se analiza el proceso de conformación de la Juventud al Frente, espacio de Juventud del Frente Telefónico, una de las agrupaciones que conforman desde 1997 la conducción de FOETRA, el sindicato telefónico del Área Metropolitana de Buenos Aires. Se despliegan las prácticas y sentidos de la organización de una Juventud, analizando su inserción en disputas y relaciones (con las empresas, entre agrupaciones, entre centrales sindicales y entre generaciones nuevas y dirigentes), así como las justificaciones y sentidos otorgados al espacio de Juventud y cómo éste se inserta y significa en el seno de trayectorias de vida, trabajo y militancia de los y las jóvenes. Con intención analítica, se incorpora además una aproximación comparativa, reconstruyendo otro proceso de organización llevado adelante por trabajadores/as jóvenes, aquél de los trabajadores/as del edificio Arribeños de la empresa de call center Action Line

Behavioural and oceanographic isolation of an island‑based jellyfish (Copula sivickisi, Class Cubozoa) population

Cubozoan jellyfish are classified as plankton despite the strong swimming and orientation abilities of cubomedusae. How these capabilities could affect cubozoan population structures is poorly understood. Medusae of the cubozoan Copula sivickisi can uniquely attach to surfaces with the sticky pads on their bells. Biophysical modelling was used to investigate the spatial scales of connectivity in a C. sivickisi population. When the medusae were active at night they could maintain their observed distribution on fringing reef if they attached to the reef when the current speed exceeded a moderate threshold. This behaviour facilitated the isolation of a C. sivickisi population on reefs fringing Magnetic Island, Queensland, Australia. Within this distribution, there was considerable within bay retention and medusae rarely travelled > 3 km. The few (< 0.1%) medusae lost from the island habitat were largely advected into open water and away from the mainland coast which lies 8 km from the island. Given that successful emigration is unlikely, the island population probably represents a stock that is ecologically distinct from any mainland populations. The cosmopolitan distribution of C. sivickisi could contain incipient or cryptic species given the small scales of connectivity demonstrated here

Development of the dry tape battery concept

High energy anode and cathode for dry tape battery - incapsulation of electrolyte - manufacturing and testing of devic

A nonlocal diffusion problem on manifolds

In this paper we study a nonlocal diffusion problem on a manifold. These kinds of equations can model diffusions when there are long range effects and have been widely studied in Euclidean space. We first prove existence and uniqueness of solutions and a comparison principle. Then, for a convenient rescaling we prove that the operator under consideration converges to a multiple of the usual Heat-Beltrami operator on the manifold. Next, we look at the long time behavior on compact manifolds by studying the spectral properties of the operator. Finally, for the model case of hyperbolic space we study the long time asymptotics and find a different and interesting behavior.Fil: Bandle, Catherine. University Of Basel; SuizaFil: González, María del Mar. Universidad Autonoma de Madrid; EspañaFil: Fontelos, Marco A.. Instituto de Ciencias Matemáticas; EspañaFil: Wolanski, Noemi Irene. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Matemática; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Investigaciones Matemáticas "Luis A. Santaló". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Matemáticas "Luis A. Santaló"; Argentin

The shock wave ignition of dusts

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/76582/1/AIAA-9095-997.pd

Dependence of pp->pp pi0 near Threshold on the Spin of the Colliding Nucleons

A polarized internal atomic hydrogen target and a stored, polarized beam are used to measure the spin-dependent total cross section Delta_sigma_T/sigma_tot, as well as the polar integrals of the spin correlation coefficient combination A_xx-A_yy, and the analyzing power A_y for pp-> pp pi0 at four bombarding energies between 325 and 400 MeV. This experiment is made possible by the use of a cooled beam in a storage ring. The polarization observables are used to study the contribution from individual partial waves.Comment: 6 pages, 1 table, 4 figures, corrected equations 2 and

Does behaviour affect the dispersal of flatback post-hatchlings in the Great Barrier Reef?

The ability of individuals to actively control their movements, especially during the early life stages, can significantly influence the distribution of their population. Most marine turtle species develop oceanic foraging habitats during different life stages. However, flatback turtles (Natator depressus) are endemic to Australia and are the only marine turtle species with an exclusive neritic development. To explain the lack of oceanic dispersal of this species, we predicted the dispersal of post-hatchlings in the Great Barrier Reef (GBR), Australia, using oceanographic advection-dispersal models. We included directional swimming in our models and calibrated them against the observed distribution of post-hatchling and adult turtles. We simulated the dispersal of green and loggerhead turtles since they also breed in the same region. Our study suggests that the neritic distribution of flatback post-hatchlings is favoured by the inshore distribution of nesting beaches, the local water circulation and directional swimming during their early dispersal. This combination of factors is important because, under the conditions tested, if flatback post-hatchlings were entirely passively transported, they would be advected into oceanic habitats after 40 days. Our results reinforce the importance of oceanography and directional swimming in the early life stages and their influence on the distribution of a marine turtle species

Development of the dry tape battery concept quarterly report no. 1, 24 jan. - 30 apr. 1964

High energy anode and cathode development, electrolyte encapsulation, tape activation, and parasitic operation techniques for dry tape battery concep