Showing papers by "University of Valencia published in 1970"

On Scattering and Bound States for a Singular Potential

Abstract: To understand the origin of the difficulties in the determination of the physical wavefunc­ tion for an attractive inverse square potential, we study a model in which the singularity at the origin is substituted by a repulsive core. The structure of the spectrum of energy levels is discussed in some detail. The physical interpretation of the solutions of the Schrodinger equation for a potential of the form - (-h 2 /2m) 11/ r 2 presents difficulties, which occur for 11 larger than (l + 1/2)\ where l is the angular momentum. The difficulties are due to the fact that the condition of square integrability usually imposed on the wavefunction is not sufficient in this case to determine phase shifts or energies of bound states. For strongly attractive singular potentials, as in the case of the attractive inverse square potential, both solutions of the wave equation are square integrable, so that Von Neumann's criterium fails to determine a unique solution. A solution can be built which is finite for r~oo, but it will be finite for every value of the energy from zero to minus infinity, so that no discrete energy spectrum can be determined. The problem of the determination of the energies of the bound states for the inverse square potential has been discussed by several authors. Some of these authors postulate additional conditions on the wavefunctions representing physical states so as to obtain a discrete energy spectrum. Shortley 1 ) discussed the quantum mechanical problem as related to the classical case, and did not try to eliminate the absence of quantization of the energy levels. Landau and Lif­ shitz2) showed how the lack of quantization is related to the singularity of the potential at the origin. Recently Guggenheim, 3 ) based on simple arguments of dimensional analysis, showed how it is impossible to define uniquely energy levels for the attractive inverse square potential if no extra parameter is pro­ vided. Case, 4 ) besides assuming the square integrability of the wavefunctions, introduced the extra condition that the wavefunctions representing physical states form an orthogonal set. This assumption is sufficient to define the spacing of

Comunicación, Salud y Tecnología: mHealth

Abstract: El desarrollo tecnologico experimentado en las ultimas decadas ha generado un profundo cambio en una sociedad actualmente formada por individuos con un alto grado de dependencia hacia dispositivos que modifican sus comportamientos y que mejoran dia a dia su calidad de vida. Con un smartphone en la mano no solo tenemos un instrumento para comunicarnos, tenemos en nuestro poder una herramienta que mediante las conocidas aplicaciones moviles o mas comunmente identificadas como apps nos permite acceder a un gran universo de recursos. La aportacion de las aplicaciones moviles a la sanidad se produce en diferentes ambitos de actuacion y en este trabajo nos centraremos en los aspectos fundamentales que definen las capacidades de la mHealth.

Peines de marfil y madera de la II Edad del Hierro en la Peninsula Ibérica. Talleres, estilos y otros enredos

Abstract: Desde la Prehistoria, diversos objetos han sido elaborados en materias duras de origen animal (hueso, asta, marfil, cuerno, concha), destacando entre aquellas el marfil por ser un material exotico. En este trabajo se analiza un conjunto de peines de marfil y madera procedentes de yacimientos de la II Edad del Hierro de la Peninsula Iberica. Su estudio ha permitido ofrecer una vision renovada sobre estos objetos, cuyos patrones formales y ornamentales evidencian su fabricacion autoctona en unos pocos lugares desde donde se difunden a areas distantes. Ademas, las evidencias que aportan los contextos y las cronologias trazan nuevos codigos de lectura para hacer una aproximacion sobre los artesanos que los fabricaron y para la interpretacion en clave de genero de los usuarios.

Cuidado de pacientes oncológicos: una revisión sobre el impacto de la situación de estrés crónico y su relación con la personalidad del cuidador y otras variables moduladoras

Abstract: Objective: The prevalence of long-term diseases such as cancer has increased in recent years In this context, our aim will be to analyze the main consequences resulting from exposure to a chronic stress situation, such as the care of an oncologic patient The effects of this situation on the psychosocial health and cognitive function of informal caregivers and their relationship with possible modulating variables will be revised Method: A bibliographic review was performed in PubMed and PsycINFO databases about the consequences related to the caregiving of patients with chronic diseases Results: Several studies suggest that the condition of caregiver of cancer patients could be considered as an and stressful situation It has consequences on caregiver’s physical and psychosocial health, and can induce a decrease of cognitive functioning, although these changes may be modulated by different variables Conclusion: These data suggest the need of implementing intervention programs in order to mitigate the deleterious consequences of the caregiving situation

Antropología de la Conservación en España. Balance y perspectivas

Abstract: En este articulo presentamos un balance de la Antropologia de la Conservacion en el Estado espanol. Durante las ultimas decadas, la proteccion de los espacios naturales ha aumentado de una manera exponencial en todo el mundo. A la vez que se extendia esta patrimonializacion de la naturaleza, los trabajos etnograficos sobre las areas protegidas han ido ganando terreno dentro de la disciplina y, en particular, en el campo de la Antropologia Ambiental. La mencionada bibliografia ha puesto de relieve los multiples aspectos derivados de las nuevas politicas territoriales de regulacion, apropiacion y mercantilizacion de la ‘naturaleza’. En este trabajo realizamos una revision exhaustiva de la produccion generada a raiz de este interes por las areas protegidas en nuestro pais subrayando sus principales aportaciones, caracteristicas y debilidades. De este modo pretendemos reflexionar acerca de su continuidad, con el fin de evitar la mera reiteracion y favorecer el avance en sus resultados.

Distrés emocional y problemas asociados en población oncológica adulta

Abstract: Objetivo: en este estudio se estima la prevalencia de distres, se identifican los problemas asociados y se analiza el conocimiento y uso que hacen los pacientes sobre los recursos psicosociales disponibles en el centro hospitalario. Metodo: se lleva a cabo un estudio transversal en el que participan 203 pacientes oncologicos que estan recibiendo tratamiento quimioterapico. En la evaluacion se emplean el Inventario de Sintomas Breve-18 (BSI-18), el Listado de Problemas de NCCN y una encuesta sobre el conocimiento y uso de los recursos asistenciales del centro hospitalario. Resultados: la prevalencia de distres en la muestra total es del 26%. Los problemas fisicos son la principal fuente de distres: fatiga, dolor, sequedad o picor en la piel y problemas de sueno, entre los mas prevalentes. El BSI-18 y la Lista de Problemas muestran correlaciones estadisticamente significativas (r = 0,74; Rango: r = 0,69 y r = 0,18). Solo el 21% de los casos clinicos de distres utiliza los servicios psicosociales disponibles. El 79% restante indica no hacer uso de los mismos por considerar no necesitarlos o por desconocer su existencia. Conclusiones: aunque la mayor parte de los participantes muestran un buen ajuste a la enfermedad, un porcentaje significativo presenta niveles clinicos de distres. Es crucial llevar a cabo cribados rutinarios de la respuesta de distres para su manejo/control temprano, e informar a la poblacion sobre los recursos psicosociales disponibles, concienciandolos de la importancia de su uso en momentos de vulnerabilidad.

Políticas europeas de auditoría en tempos de crise

Abstract: The European Union has responded to the financial crisis by taking measures to stabilize the financial system and to promote economic growth in the Member States. In the audit field, in 2010 the document Green Paper Audit Policy: Lessons from the Crisis, shows the intention of the European Commission to assume an international leadership in auditing , promoting cooperation within the Financial Stability Board and the G-20. This document was followed by the European Parliament resolution of 13 September 2011 on Audit Policy: Lessons from the Crisis, a new Proposal for a Directive of the European Parliament and of the Council amending Directive 2006/43/EC and also a new Proposal for a Regulation of the European Parliament and Council on the specific requirements regarding statutory audit of public-interest entities. This paper highlights the visibility that the European Commission has given to the auditors’ work. Therefore, the aim of this paper is to discuss the audit regulatory model introduced in Europe. Our paper shows that European regulation intends to reach a greater control over auditing activity. Our paper provides some thoughts on whether such regulation will improve the quality of auditing

Vicent Llombart Rosa (1948-2017): obituario. Historiografía y compilación bibliográfica

Abstract: Dr. Vicent Llombart Rosa was Professor of History of Economic Thought at the University of Valencia and a renowned expert in the Enlightenment, member of the Royal Academy of Moral and Political Sciences, dean of the Faculty of Economics and Business of Valencia and counselor of the first socialist Valencian government on democracy. There are his biography, a briefing about his main contributions to 18th century’s historiography and a compilation of his academic and journalistic work.

Soil Water Dynamics In Burned Areas After A LateSummer Rain. The Role Of Fire Intensity, Microsite,Sampling Depth, And Time Of Measurement

Abstract: In Mediterranean areas, where fire is a recurrent process, soil water availability may be a major cause for the spatial and temporal pattern of plant recovery after fires, since water is found to limit plant growth in semiarid environments. In the Spanish region of Valencia we studied the water dynamics of a typical forest soil subjected to experimental fires of contrasted levels of fire intensity, and also that of a control (unburned) soil. This was done in the field by TDK examination of their water content variations at the 0-10 mm surface soil and at the 10-100 mm subsoil, in the plant spaces and the plant interspace patches, after the first intense rainfall following the 1995 June fires. Water contents of the surface soil varied as a function of fire intensity, microsite and time after the rain. Water conditions of the subsoil in the plant spaces affected by fire, regardless intensity, resulted significantly higher than those of the surface soil, and remained above limiting water potentials during the twelve day period of study after the rain. The ecological and practical significance of our results is that in ecosystems like the case of study, and disregarding many other factors that may affect germination, seeds stored in the subsoil of the post-fire plant spaces have better water conditions to germinate and establish. This greater availability of water in the subsoil may also favour the recovery of resprouters.

La vacuna del Virus del Papiloma Humano en los titulares de prensa

Abstract: The newspapers deliver texts to public by means of practices and processes among which we will found the news values, defined like criteria in the journalistic routines that enable to editors to decide which histories publish or not. Therefore, we will try to identify from a qualitative point of view, the news values in the headlines of the news published, in different newspapers, since January of 2006, year that was approved the vaccine by the authorities of the American administration (FDA) and May of 2009, months after the episode in which two teenagers experienced seizures after being immunized against HPV. To identify the impact, that headlines, could have had in taking of decisions concerning vaccination.

A la nación por la clase. La campaña electoral socialista de noviembre de 1933

Abstract: The article deals with electoral campaign carried out by the Spanish Socialist Party for the general elections of November 1933. Starting from the importance that the new socio-cultural and political history attributed to the discourses in shaping identities and collective action, the article attempts to show the capital importance that the use of the national narrative had for socialism. In addition, by doing so, the article tries to draw attention to a central procedure in (re) construction and social dissemination of Spanish national identity, besides the processes of politicization and the role that socialism could play on it.

On the mend of bryophyte conservation in Spain: preparing a proposal for the inclusion of bryophytes in national species protection catalogues

Abstract: The Spanish bryoflora contains 1291 taxa, 272 of them included in the Spanish Red List under any threat category. Although bryophytes show a low rate of endemicity compared to vascular flora, Spanish administration’s responsibility for the conservation of these plants is very high, since the country has 63 exclusive or rare species on a European or world scale. However, the representation of this group of plants in the Spanish legislation on species conservation is merely anecdotal. Royal Decree 139/2011 of 4 February develops a list of wild protected species (LESRPE and CEEA, Spanish abbreviations) and includes only 10 species of bryophytes, all of them from the Directive Habitats and the Bern Convention. The legal protection of endangered species of bryophytes is needed, not only to ensure the integrity of the most sensitive bryophyte populations, but also because it will result in the overall protection of their habitats and other species that coexist with them. Their inclusion in LESRPE and CEEA will allow a periodical monitoring of the species and a better assessment of the success or failure of commonly used management measures. The criteria for the incorporation of species into national protection catalogues are rather restrictive and inclusion of species without specific studies is not easy. During the work developed for the Atlas and Red Data Book of the threatened bryophytes of Spain, valuable information was obtained in this sense, although it covered only a fraction of the total number of species on the Red List (74 species were evaluated). Based on the available information, a list of species has been drawn to elaborate a proposal that should be raised to the Spanish Ministry of Agriculture and Fisheries, Food and the Environment, which would imply a qualitative leap in the level of protection of this neglected group of plants and a new impetus to the necessary work started at the first phase of the Bryophyte Atlas.

Cuestionarios de atención espiritual en cuidados paliativos: revisión de la evidencia para su aplicación clínica

Abstract: Objective: review of the more recent questionnaires assessing spiritual needs and resources in palliative care, and determine their clinical applicability in our environment. Methods: systematic review, following PRISMA guidelines, of all publications about spirituality appeared on 2015-2016. Papers had to be focused on spiritual care or spirituality assessment, based on a palliative care population, and gone through a peer review. Results: a total of 42 publications were identified, but after the evaluation of two independent observers, only 15 fulfilled the selection criteria. The selected papers were analyzed according to their characteristics, psychometric properties and applicability. Conclusions: the need of improving spiritual care in the dying process lead to the advent of many assessment and spiritual care tools. Their use has to be considered together with the clinician experience, their applicability on the cultural context and their psychometric properties.

Los viajes de Maximiliano a España y Brasil: el largo camino hacia el imperio mexicano

Abstract: In May of 1864, Maximilian of Austria reached the Mexican coast, being this journey his last, ending three years later with his execution. Much has been written about the reasons that promp- ted his acceptance of the crown of Mexico, a country so distant in every sense of his cultural envi- ronment. However, years ago Maximilian had traveled to Spain and Brazil (to Spain twice) and these experiences, although not determinant, greatly influenced the decision of the Archduke, who saw the chance to realize a dream he had conceived on his trip to Spain and that was consolidated during his stay in Brazil, as we can extract from his travel memoirs. Keywords: Travel Literature; Interculturality; Realms of Memory; Maximilian of Austria.

La tesis de Weber en torno al capitalismo en el 500 Aniversario de la Reforma Protestante

Abstract: The Weber thesis on a hypothetical imprint of Protestantism in the «spirit» of capitalism has been widely spread. Not willing to discredit his proposal (indemonstrability does not detract from plausibility), the truth is that, being falsifiable with difficulty, some careless wordings have been derived from it claiming to explain the present economical circumstances through differential religious facts. Being religion an unparalleled all covering feature, such circumstances depend on many factors. It has been claimed some scientific status through the most diverse socioeconomic data. This is something also applicable to those who claim to refute him. The intoxication so emanated from the Weber’s work seems disconcerting, seeing in it from an attempt to legitimate capitalism to a confirmation of the Black Legend. This work does not try to support or reject the thesis, but to investigate the kind of issues that could cause its formulation. For this purpose, it focuses on less usual questions, such as the analysis of the doctrinal features of Protestantism (basically faith alone and predestination) from which the Weber’s arguments would arise.

El laberinto de la estereotipación en la LIJ catalana

Abstract: Although diversity has always been present in Spanish schools, the incorporation of cultures that were not very common in the country was a stirring in the 1990s for the revitalization of intercultural education. But in our opinion, there is a significant lack of studies about how this new multiculturalism has influenced in society, and especially in non-curricular materials among which the Children’s and Young’s people Literature is a fundamental component. It is important, then, and necessary to check what treatment has been made of multiculturalism in this kind of literature and stereotyping is undoubtedly one of the most sensitive aspects reflected in the works. This article deal with a research carried out on a total of 95 children’s and youth books in Catalan selected through prizes, reviews and selection lists. The goal of the global research about Catalan books was to analyse the presence of multiculturalism and interculturality. However we found that multiculturalism was often carried out through stereotypes, especially stereotypes about whole cultures and foreigners. This is partly due to the format of the works, but also because the society they are trying to reflect.

La negatividad de Kant a Hegel: juicio estético y lenguaje especulativo”.

Abstract: The essay presents an interpretation of Hegel’s speculative sentence that, emphasizing the “counter-thrust” (Gegenstoss) that the modern (knowing) subject undergoes here, allows us to connect the movement of the Hegelian subject to the negativity recognised by Kant at the bottom of the faculty of judgment with regard to its aesthetic dimension. This way, it aims, first, to put into question the interpretation that sees in Hegel’s philosophy a regression with regard to the consciousness, attained by Kant, of the finitude, or the constitutive split, of the modern subject, and, finally, in line with recent interpretations of Hegel, like those of Žižek or Malabou, to contribute to the questioning of the traditional interpretation of Hegel’s dialectics as the overcoming of negativity into a final reconciling synthesis.

De "Balneator" del "Sendebar" a "Senescalus" de los "Siete sabios": del exemplo al relato de ficción

Abstract: Resumen: Estudio de la difusion del cuento Balneator/Senescalus en el ciclo del Sendebar –tanto la rama transmision oriental, como la occidental–, para examinar las recreaciones de que ha sido objeto este relato en un continuo proceso de narrativizacion que convierte el «exemplo» del Sendebar, en relato de ccion en el Libro de los siete sabios de Roma y que responde a la necesidad de reactualizar la obra a lo largo de la Edad Media y de adaptarla a distintos modelos genericos, cauces de difusion variados y nuevos contextos y gustos literarios de recepcion. Palabras clave: Sendebar. Libro de los siete sabios de Roma. Balneator. Senescalu s . Transmision. Recepcion. Abstract: A study that sheds new light on the transmission of the story of Balneator/ Senescalus in both the Eastern and Western literary traditions of the Tales of Sendebar . The paper explores the multiple recreations of the Balneator/Senescalus from the exemplo in the Tales of Sendebar to the short narrative in the Seven Sage of Rome and, furthermore, examines its continuous process of rearrativization throughout the Middle Ages, which responds to the necessity of adapting the story to different generic models and channels of literary transmission, as well as to changing condi- tions and literary tastes. Keywords: Tales of Sendebar. Seven Sages of Rome. Balneator. Senescalus . Transmission. Easter and Wester literary traditions.

Evocación del historiador Vicent Llombart

Abstract: This remembrance shows how the initial training that Vicent Llombart received at the Seminar on the History of Economic Thought at the University of Valencia was crucial, although not the only element, to understanding a prominent academic career with so relevant contributions. His determined purpose, his self-demanding character and his permanent intellectual openness help us to better understand a great historian.

Laboratorio remoto para la programación de robots industriales abb en lenguaje rapid

Abstract: El aprendizaje efectivo del lenguaje de programacion para robots necesita de una constante realizacion de practicas. Este trabajo describe la metodologia llevada a cabo para conseguir el aprendizaje del lenguaje RAPID. Se ha desarrollado un sistema de aprendizaje para practicas remotas y presenciales que emplea un robot IRB140 de ABB, un PLC con tarjeta Ethernet y servidor web, una camara IP para visualizar la ejecucion de la practica en tiempo real, una matriz de sensores electromagneticos y un servidor web PC. El usuario puede acceder desde un navegador web a la programacion del robot a cualquier hora del dia, descargar remotamente el programa y observar en tiempo real el resultado, obteniendo informacion de los movimientos realizados por el robot. Con ello, se desea conseguir que el estudiante pueda realizar practicas reales de programacion de robots, tanto de forma presencial como remota.

El doble de la palabra. El mito de Eco en la literatura inglesa contemporánea

Abstract: This article explores the figure of Echo in contemporary English literature focusing on works by A.S. Byatt, Timberlake Wertenbaker, Nicole Ward Jouve and Moniza Alvi among others. After an introduction on the secondary literature published on the nymph, Echo is analyzed under the perspective of opposites such as self/other, metropolis/colony, word/silence in poetry, theatre and short stories. Considered en masse, the works discussed in this article manifest how the reception of Echo is closely linked to the concept of the double in Western cultures.

Diarios de aprendizaje en el estudio de los idiomas extranjeros: Opiniones de alumnos acerca de su utilidad para la autonomía de los aprendices

Abstract: Se han empleado diarios en una variedad de contextos de aprendizaje. Para realizar un diario en una clase de idioma extranjero, los alumnos anotan las actividades que realizan para estudiar, practicar, y/o mejorar su capacidad en la lengua meta. En el caso de un grado en Lenguas Modernas y Traduccion ofertado en una universidad en el centro peninsular, 76 estudiantes tuvieron la opcion de hacer un diario, un resumen semanal o un informe semanal acerca de sus busquedas bibliograficas en cuanto a estrategias de aprendizaje. El presente articulo explica esas opciones e informa sobre las elecciones de los estudiantes, sus opiniones acerca de la utilidad de la actividad en general y sus impresiones de si la actividad les ayudo a incrementar ciertos aspectos de la autonomia en el aprendizaje. La mayoria de los estudiantes optaron por hacer un diario con anotaciones breves, y un cuestionario revelo que, por lo general, opinaron de forma positiva acerca de la actividad en global y su eficacia en cuanto a la autonomia en el aprendizaje.

Lectotipificación de "Cistus laevipes" L. ("Cistaceae")

Abstract: La informacion actual sobre Cistus laevipes L., basionimo de Fumana laevipes (L.) Spach, muestra que tal taxon no se encuentra tipificado. En el presente trabajo se designa como lectotipo el material original contenido en un pliego del herbario UPS-BURSER.

Mamá, quiero ser artista. La situación actual de la mujer en el panorama artístico

Abstract: La lucha reivindicativa de la mujer por hacerse un hueco en el panorama artistico se acentua en los anos setenta con grandes artistas que defienden sus derechos en Estados Unidos y Europa a traves de nuevos medios como la fotografia o la performance. Estas van abriendo hueco a sus generaciones posteriores. La herencia que ellas han dejado permite a la mujer trabajar sin plantearse cuestiones de genero como si se hacia en el pasado, aunque este hecho no significa que este todo solucionado y que haya que bajar la guardia. La artista Natalia Lozano, artista emergente multidisciplinar, sirve como ejemplo para conocer que situacion se encuentra una mujer joven hoy en dia y permite sacar una lectura postfeminista. Ademas la catedratica Rosa Maria Rodriguez Magda responde a algunas cuestiones que ayudan a despejar ciertas dudas que surgen al conocer el panorama actual.

Krise und Kreation im medialen Kontext. Die zwiespältigen deutschspanischen Beziehungen anhand der Filmproduktion in der ersten Hälfte des zwanzigsten Jahrhunderts

Abstract: Las epocas de crisis politico-social propician en especial medida la creacion y el afianzamiento de determinados auto y heteroestereotipos. Esta afirmacion resulta concluyente cuando se analiza como las distintas fases politicas de Espana a lo largo de la historia han condicionado de manera definitiva su imagen en el extranjero, en especial en Alemania. Las imagenes y estereotipos romanticos creados a partir de la Guerra de la Independencia (1808-1814) sirvieron durante la primera mitad del siglo veinte de instrumento de manipulacion propagandistica que debia contribuir a ensalzar la ejemplaridad del aliado espanol. Este artificio politico, que buscaba la simpatia ideologica con el sistema de valores nacionalsocialista, se valio de manera particular de las producciones cinematograficas hispano-alemanas para lograr su objetivo.

Laboratorio de sistemas industriales distribuidos: un recorrido práctico por las tecnologías de comunicación industrial

Abstract: La asignatura de redes industriales es dificil de ensenar debido a la gran variedad de estandares utilizados en la industria para la comunicacion de sistemas y procesos, especialmente en las sesiones de laboratorio donde el tiempo y la disponibilidad de dispositivos son una restriccion habitual. En este articulo se propone una nueva aproximacion;la metodologia propuesta permite al alumno configurar y utilizar todos los pasos relacionados con el proceso de automatizacion donde se tiene como modelo la piramide de automatizacion. Esta tarea se realiza en un numero reducido de sesiones de laboratorio (30 horas) mediante una estrategia de rotacion en determinadas sesiones. Ademas, cada sesion es parte de un sistema de automatizacion global, de manera que el alumno realiza el sistema de automatizacion completo paso a paso, desde el nivel de sensores y actuadores hasta el nivel de gestion (incluyendo conexiones Ethernet, SCADA e interfaces hombre-maquina). La aplicacion esta basada en una aplicacion real donde se implementa una fabrica de galletas simplificada.