3,479 research outputs found

    On narrowing coated conductor film: emergence of granularity-induced field hysteresis of transport critical current

    Full text link
    Critical current density Jc in polycrystalline or granular superconducting material is known to be hysteretic with applied field H due to the focusing of field within the boundary between adjacent grains. This is of concern in the so-called coated conductors wherein superconducting film is grown on a granular, but textured surface of a metal substrate. While previous work has mainly been on Jc determined using induced or magnetization currents, the present work utilizes transport current via an applied potential in strip geometry. It is observed that the effect is not as pronounced using transport current, probably due to a large difference in criterion voltage between the two types of measurements. However, when the films are narrowed by patterning into 200-, 100-, or 80-micron, the hysteresis is clearly seen, because of the forcing of percolation across higher-angle grain boundaries. This effect is compared for films grown on ion-beam-assisted-deposited (IBAD) YSZ substrate and those grown on rolling-assisted-biaxially-textures substrates (RABiTS) which have grains that are about ten times larger. The hysteresis is more pronounced for the latter, which is more likely to have a weak grain boundary spanning the width of the microbridge. This is also of concern to applications in which coated conductors will be striated in order to reduce of AC losses.Comment: text-only: 10 pages, plus 5 figures on 5 page

    Protectionist Threats and Foreign Direct Investment

    Get PDF
    The recent literature on quid pro quo foreign direct investment (FDI) suggests that FDI may be induced by the threat of protection, and further, that FDI may be used as an instrument to defuse a protectionist threat. This paper uses a panel data set of 4-digit SIC level observations of Japanese manufacturing FDI into the United States in the 1980s to explore these hypotheses empirically. We find strong statistical support for the hypothesis that higher threats of protection lead to greater FDI flows, and post-regression simulations find that a rise in the expected probability of protection from five to ten percent means over a 30 percent rise in next-period FDI flows for an average industry. In addition, there is evidence that non- acquisition FDI by the Japanese had success in defusing the threat of an escape clause investigation in future periods.

    Una lectura antropológica de la Fiesta del Chivo. Entre el deseo de reconocimiento y el miedo a la libertad.

    Get PDF
    En esta comunicación tratamos de comprender los motivos psicológicos que viabilizan la existencia de una dictadura así como los límites de esta viabilidad debido a la necesidad de libertad del ser humano. Para ello emplearemos la novela la Fiesta del Chivo, de Mario Vargas Llosa, que nos servirá de pretexto y fuente para analizar el pensamiento de Erich Fromm, autor que fue capaz de explicar los motivos psicológicos que pueden llevar al ser humano al sometimiento de un poder externo.In this essay we will try to understand the psychological reasons that permit the existence of a dictatorship, as well as the limits of this viability due to the need of freedom of the human being. In order to reflect this theory, we will use “La Fiesta del Chivo”, from Vargas Llosa. This novel will serve us as a source to analyze Erich Fromm thoughts, which try to explain the psychological reasons that lead people to the submission of an external power

    Le débat sur le tirage au sort au sein de Podemos

    Get PDF
    L’irruption du mouvement des Indignés en 2011 a permis à des couches de la société civile d’atteindre un degré significatif d’expérimentation politique. De la multiplication des manifestations et de l’occupation des places au début du mouvement jusqu’à la création de nouvelles formations politiques — en passant par l’émergence d’une multitude d’initiatives citoyennes, l’irruption de plateformes de monitoring, l’éclosion de moyens alternatifs de communication, la consolidation de plateformes c..

    El Concepto de sociedad Civil en la Obra de John Keane

    Get PDF
    Frente la amplísima variedad de significados que se le atribuye al popular concepto de sociedad civil, este artículo trata de abordar en profundidad la propuesta de J. Keane, uno de los autores más destacados en la teoría política contemporánea, cuyo trabajo contribuyó significativamente al rena- cimiento del concepto durante las últimas décadas del siglo XX. El articulo ahonda no solamente en el significado que adquiere esta noción en la propuesta de este autor, sino que profundiza además en toda otra serie de elementos vinculados a su propuesta filosófica general para la consecución de un modelo de democracia que el autor interpreta a través de una efectiva, y nueva, combinación entre estado y sociedad civil, en búsqueda de un máximo respeto a una amplia pluralidad social.In view of the vast range of meanings attributed to the popular concept of civil society, this article sets out to explore in-depth study of the works of J. Keane, one of the most renowned thinkers in the field of current political theory. His work significantly contributed to the rebirth of the concept dur- ing the final decades of the 20th century. This article not only explores the meaning of civil society as set forth in Keane’s writings, but also relates it to another series of elements linked to his general philosophical proposal to arrive at a model of democracy that the author interprets through an ef- fective, and new, conjunction of state and civil society that pursues the maximum respect for a wide social plurality

    El consumo ético ¿una nueva forma de participación ciudadana?

    Get PDF
    The present article analyses and reflects on various approaches to the ethics of consumption and whether it can be considered as a new form of citizen participation. The ethical and political dimension of consumption is a growing concern for sections of the population that are beginning to consider their responsibility, and their power, as consumers. This process is linked to the emergence of what are known as political consumers, and now offers a fruitful area of theoretical analysis in disciplines such as ethics, political theory and sociology.El presente artículo plantea un análisis y una reflexión sobre diversos planteamientos en torno a la ética del consumo y su posible consideración como una nueva forma de participación ciudadana. La dimensión ética y política del consumo constituye una preocupación creciente para capas de la población que empiezan a considerar su responsabilidad, y su poder, como consumidores. Un proceso asociado con la emergencia de lo que se conoce como consumidores políticos, y que es hoy en día un fructífero campo de análisis teórico de disciplinas como la ética, la teoría política y la sociología

    Diferentes concepciones de sociedad civil: la problemática de un concepto

    Get PDF
    Frente a la amplísima variedad de significados que se le atribuye al popular concepto de sociedad civil, este artículo trata de abordar una serie de clasificaciones que se han realizado a su alrededor, contrapone asimismo algunas de las formas que predominan en el pensamiento actual de los teóricos de la sociedad civil, observando los diferentes agentes, principios y metodologías que se emplean en la actualidad a la hora de pensar en la sociedad civil. El objetivo principal consiste en tratar de establecer una base mínima sobre la que observar la fundamentación filosófica en la que se sustenta la idea de la sociedad civil.In view of the vast range of meanings attributed to the popular concept of civil society, this article sets out to explore a series of classifications that have been made about it, and at the same time, compare some of the forms that predominate current thought among civil society theorists, by observing the various agents, principles and methodologies used in today’s considerations of civil society. The main aim of the article is to try and establish a minimum base from which to observe the philosophical grounding that sustains the idea of civil society

    La postura de España en la segunda Guerra Mundial, censura y conflictos políticos internos. Análisis de la revista mundo 1939-1945

    Get PDF
    Decenes Jornades de Foment de la Investigació de la FCHS (Any 2004-2005

    The emergence of Neuroadvertisiment and its ethical debates

    Get PDF
    El presente artículo tiene como objetivo examinar el significado de la neuropublicidad así como introducir los debates éticos que la acompañan. La neuropublicidad se ha convertido recientemente en la esperanza de numerosos expertos del mundo de la publicidad. La búsqueda de la eficacia publicitaria y el conocimiento de las “verdaderas” necesidades de los clientes centran la investigación de esta disciplina que fusiona el marketing y la publicidad con los nuevos conocimientos sobre el cerebro vinculados con el avance de las neurociencias. El presente artículo analiza esta nueva disciplina y sus características, a la vez que analiza algunas de las problemática morales que plantea.This article is intended to focus on the meaning of neuroadvertisiment and the possible ethical debates surrounding the application of this discipline.Over the last few years, neuroadvertisiment have become the hope of many experts in the advertising. This discipline fuses marketing and advertising theory with the new knowledge about the brain produced with the advance of neurosciences. This article examines this new discipline, its features and performances, while raises several moral discussions awakened from its appearance
    corecore