Juventud y cooperativismo en el Paraguay

Resumen de ponencias, debate y conclusiones del Encuentro de Jóvenes Cooperativistas. Organizado por la Cooperativa San Cristóbal Ltda., Asunción, 26 de noviembre de 1994.Contenido Presentación 1. Apertura 4. 1.1 Rodolfo Serafini. Cooperativa San Cristóbal. Comité de Educación 4. 1.2 Exposición del Sr. Julio López. Presidente del Comité de Educación y Vice Presidente de la Cooperativa San Cristóbal 4. 1.3 Exposición de Luis Caputo. BASE-IS. Programa de Juventud Rural 5. 1.4 Exposición de Fidel Agüero. Cooperativa Medalla Milagrosa 6. 1.5 Exposición de Fernando Ríos. Instituto Nacional de Cooperativismo 7. 1.6 Exposición de Enrique Riera. Viceministro de Educación 8. 2. La juventud Cooperativista: Su dimensión socio-política 11. 2.1 La juventud desde la óptica cooperativista 14. 2.2 Características ventajosas de la juventud 16. 3. Debate 18. 4. Plenaria y conclusiones. Participación de la juventud en la organización cooperativa 25. 4.1 Representantes del Grupo1. La situación actual del joven, con respecto a los obstáculos y a las oportunidades que encuentra el joven con respecto al cooperativismo 25. 4.2 Representantes del Grupo 2. La situación de la juventud en la cooperativa 28. 4.3 Representante del Grupo 3. Puntos sobre las principales causas de desempleo juvenil 31

Economic Base Multipliers and Community Growth

An economic base study gives detailed information about how a community earns its living. The study attempts to answer the following questions: What are the current sources of employment and income? Which of these sources depend on markets outside the local economy and are affected by external forces? These we call basic. Which of these sources serve markets within the local economy? These are called non-basic.Reviewed October 1993

Spatial component analysis of MRI data for Alzheimer's disease diagnosis: a Bayesian network approach

This work presents a spatial-component (SC) based approach to aid the diagnosis of Alzheimer's disease (AD) using magnetic resonance images. In this approach, the whole brain image is subdivided in regions or spatial components, and a Bayesian network is used to model the dependencies between affected regions of AD. The structure of relations between affected regions allows to detect neurodegeneration with an estimated performance of 88% on more than 400 subjects and predict neurodegeneration with 80% accuracy, supporting the conclusion that modeling the dependencies between components increases the recognition of different patterns of brain degeneration in AD.This work was partly supported by the MICINN under the TEC2012-34306 project and the Consejería de Innovación, Ciencia y Empresa (Junta de Andaluca, Spain) under the Excellence Projects P09-TIC-4530 and P11-TIC-7103

Role of Social Networks in Adoption of Technology and Empowerment of Women: Sociological Evidences from Village-level Studies

There is abundant literature and information produced regarding social networks and the specific roles that women play in these networks and benefits they receive through them. However, much is left to be explored and understood on the role of social networks in increasing women's and men's access to resources and opportunities, and to establish means to map and measure them and how they are gendered. Another important step is to identify how social networks empower women, speci fically in terms of increasing their bargaining power. Studies suggest that men and women build and utilize social networks differently, and because the multiple roles that women and women's social networks play it is important to recognize and facilitate networks that can increase household access to necessary productive resources (Flora 2001). Increased participation by women in social networks can increase access to resources such as information about employment opportunities or income during economic crisis

Supersymmetry Relations Between Contributions To One-Loop Gauge Boson Amplitudes

We apply ideas motivated by string theory to improve the calculational efficiency of one-loop weak interaction processes with massive external gauge bosons. In certain cases ``supersymmetry'' relations between diagrams with a fermion loop and with a gauge boson loop hold. This is explicitly illustrated for a particular one-loop standard model process with four-external gauge bosons. The supersymmetry relations can be used to provide further significant improvements in calculational efficiency.Comment: 21 pages of plain TeX + 5 PostScript figures (compressed and uuencoded), UCLA/93/TEP/36 and DTP/93/8

Equilibrium configurations of two charged masses in General Relativity

An asymptotically flat static solution of Einstein-Maxwell equations which describes the field of two non-extreme Reissner - Nordstr\"om sources in equilibrium is presented. It is expressed in terms of physical parameters of the sources (their masses, charges and separating distance). Very simple analytical forms were found for the solution as well as for the equilibrium condition which guarantees the absence of any struts on the symmetry axis. This condition shows that the equilibrium is not possible for two black holes or for two naked singularities. However, in the case when one of the sources is a black hole and another one is a naked singularity, the equilibrium is possible at some distance separating the sources. It is interesting that for appropriately chosen parameters even a Schwarzschild black hole together with a naked singularity can be "suspended" freely in the superposition of their fields.Comment: 4 pages; accepted for publication in Phys. Rev.

Physics with antihydrogen

Performing measurements of the properties of antihydrogen, the bound state of an antiproton and a positron, and comparing the results with those for ordinary hydrogen, has long been seen as a route to test some of the fundamental principles of physics. There has been much experimental progress in this direction in recent years, and antihydrogen is now routinely created and trapped and a range of exciting measurements probing the foundations of modern physics are planned or underway. In this contribution we review the techniques developed to facilitate the capture and manipulation of positrons and antiprotons, along with procedures to bring them together to create antihydrogen. Once formed, the antihydrogen has been detected by its destruction via annihilation or field ionization, and aspects of the methodologies involved are summarized. Magnetic minimum neutral atom traps have been employed to allow some of the antihydrogen created to be held for considerable periods. We describe such devices, and their implementation, along with the cusp magnetic trap used to produce the first evidence for a low-energy beam of antihydrogen. The experiments performed to date on antihydrogen are discussed, including the first observation of a resonant quantum transition and the analyses that have yielded a limit on the electrical neutrality of the anti-atom and placed crude bounds on its gravitational behaviour. Our review concludes with an outlook, including the new ELENA extension to the antiproton decelerator facility at CERN, together with summaries of how we envisage the major threads of antihydrogen physics will progress in the coming years

A statistical comparison of spatio-temporal surface moisture patterns beneath a semi-natural grassland and permanent pasture:From drought to saturation

Some 60% of the agricultural land in the UK is grassland. This is mostly located in the wetter uplands of the west and north, with the majority intensively managed as permanent pasture. Despite its extent, there is a lack of knowledge regarding how agricultural practices have altered the hydrological behaviour of the underlying soils relative to the adjacent moorland covered by semi‐natural grassland. Near‐surface soil moisture content is an expression of the changes that have taken place and is critical in the generation of flood‐producing overland‐flows. This study aims to develop a pioneering paired‐plot approach, producing 1536 moisture measurements at each of the monitoring dates throughout the studied year, that were subsequently analysed by a comparison of frequency distributions, visual‐cum‐geostatistical investigation of spatial patterns and mixed‐effects regression modelling. The analysis demonstrated that the practices taking place in the pasture (ploughing, re‐seeding and drainage) reduced the natural diversity in moisture patterns. Compared to adjacent moorland, the topsoil dried much faster in spring with the effects requiring offset with moisture from slurry applications in summer. With the onset of autumn rains, these applications then made the topsoil wetter than the moorland, heightening the likelihood of flood‐producing overland‐flow. During the sampling within one such storm‐event, the adjacent moorland was almost as wet as the pasture with both visibly generating overland‐flow. These contrasts in soil moisture were statistically significant throughout. Further, they highlight the need to scale‐up the monitoring with numerous plot‐pairs to see if the observed highly dynamic, contrasting behaviour is present at the landscape‐scale. Such research is fundamental to designing appropriate agricultural interventions to deliver sustainable sward production for livestock or methods of mitigating overland‐flow incidence that would otherwise heighten flood‐risk or threaten water‐quality in rivers