On the structure of symmetric self-dual Lie algebras

A finite-dimensional Lie algebra is called (symmetric) self-dual, if it possesses an invariant nondegenerate (symmetric) bilinear form. Symmetric self-dual Lie algebras have been studied by Medina and Revoy, who have proven a very useful theorem about their structure. In this paper we prove a refinement of their theorem which has wide applicability in Conformal Field Theory, where symmetric self-dual Lie algebras start to play an important role due to the fact that they are precisely the Lie algebras which admit a Sugawara construction. We also prove a few corollaries which are important in Conformal Field Theory. (This paper provides mathematical details of results used, but only sketched, in the companion paper hep-th/9506151.)Comment: 19 pages, .dvi.uu (needs AMSFonts 2.1+

Nonsemisimple Sugawara Constructions

By a Sugawara construction we mean a generalized Virasoro construction in which the currents are primary fields of conformal weight one. For simple Lie algebras, this singles out the standard Sugawara construction out of all the solutions to the Virasoro master equation. Examples of nonsemisimple Sugawara constructions have appeared recently. They share the properties that the Virasoro central charge is an integer equal to the dimension of the Lie algebra and that they can be obtained by high-level contraction of reductive Sugawara constructions: they thus correspond to free bosons. Exploiting a recent structure theorem for Lie algebras with an invariant metric, we are able to unify all the known constructions under the same formalism and, at the same time, to prove several results about the Sugawara constructions. In particular, we prove that all such constructions factorize into a standard (semisimple) Sugawara construction and a nonsemisimple one (with integral central charge) of a form which generalizes the nonsemisimple examples known so far.Comment: uuencoded compressed .dvi file (needs AMSFonts 2.1+), 13 document pages but 7 physical page

Análisis de los modelos 3D para la simulación de flujo en aguas de transición

Actualmente, las aguas de transición, definidas por la Directiva Marco del Agua 2000/60/CE como masas de agua superficial próximas a la desembocadura de los ríos que son parcialmente salinas como consecuencia de su proximidad a las aguas costeras, pero que reciben una notable influencia de flujos de agua dulce, están siendo objeto de numerosos estudios dirigidos a su rehabilitación y conservación. Consideradas hoy en día como valiosos hábitats, es necesario contar con las herramientas adecuadas para llevar a cabo su gestión correctamente. Una de las partes más importantes del estudio de estas áreas consiste en conocer su hidrodinámica, para lo cual cada vez está más extendido el uso de modelos numéricos. En este artículo se analiza las situaciones que pueden inducir flujo tridimensional en las aguas de transición y se hace una revisión de los modelos tridimensionales existentes actualmente para el estudio hidrodinámico de las mismas. Como resumen de esta revisión se elabora una tabla en la que se comparan los modelos atendiendo a su idoneidad para representar las características de estas masas de aguas

Representación de la violencia doméstica en la prensa española

Se analiza el proceso de visibilización y toma de conciencia social sobre la violencia doméstica que estamos viviendo en nuestro entorno en estos últimos años. Para ello se revisa la representación del fenómeno a través de las noticias aparecidas en la prensa española durante un mes (marzo-abril 2005), y se concreta con la observación del tratamiento dado a una misma noticia: la primera víctima mortal por violencia doméstica del año 2005.It analyses the visibility and social awareness process about domestic violence that we are all noticing in our surroundings in the latest years. With this target the representation of this phenomenon is reviewed through the news appeared in the Spanish press in a whole month (March – April 2005), and with the observation of the treatment given to the first domestic death of the year it takes shape

Intersections Between Leadership and Feminism

En el volumen Mujeres y liderazgo que aquí presentamos3, ofrecemos una reflexión sobre el liderazgo de las mujeres en un sentido amplio, ya que la relación de aportaciones que conforman este número de Dossiers Feministes es variada en el enfoque, y ello, lejos de dispersar el concepto de liderazgo nos ayuda a comprenderlo de una forma más completa. Este monográfico nos permite, así, ver cómo en el liderazgo están interrelacionados aspectos como el talento, el empoderamiento identitario, la creatividad, o la cultura de comunicación y de conocimiento entre otros. A su vez, el recorrido sobre nuestra temática se hace transitando áreas de pensamiento y realidades muy distintas: desde los ámbitos empresarial, económico, educativo y tecnológico hasta los ámbitos de reflexión sobre el cuerpo.Este trabajo se enmarca dentro del Proyecto de Innovación Educativa 326/16 de la Universitat Jaume I

The Gender Perspective as a Critical Look to the World

La perspectiva de género puede ser aplicada a cualquier campo de conocimiento y actividad humana, ya que en todos estos espacios de conocimiento e interacción las relaciones entre mujeres y hombres son la clave central de funcionamiento. Teniendo en cuenta que los patrones asimétricos de poder se reproducen en todas las dimensiones de lo social, y que la injusticia generada por estos debe ser enfrentada de forma transversal, la aplicación de la perspectiva de género se vuelve necesaria y urgente en cualquier ámbito de la vida social al que nos queramos remitir

Enhancing Quality Teaching Through Informal Community Learning In Knowledge Centres

Teaching and learning have always been at the heart of the missions of universities. The growing interest nowadays to pay attention to the quality of higher education teaching results in initiatives such as the establishment of Teaching and Learning Centres (TLCs). The Academy for Learning and Teaching (ALT) at Eindhoven University of Technology (TU/e) has recently been created, and it is still under construction, with the purpose of promoting quality of teaching through engaging staff in interaction and in learning lessons from evidence-based educational practices and innovation in engineering education. Furthermore, ALT supports the professional development of faculty teaching staff through Learning Communities (LCs) as informal learning mechanisms that stimulate knowledge sharing about engineering education experiences across departments (and universities). LCs facilitate interaction with peers, discussions on educational practices, working in teams, and exposing academic and education support staff to have access to stateof-the-art research and information on educational issues. LCs are organized by themes, such as Digitalization, that cover topics relevant to innovative practices, e.g., Learning Analytics, Artificial Intelligence in education or Digital Assessment. The purpose of this study is to present the ALT model as a knowledge centre in engineering education that stimulates the advancement of quality teaching. Specifically, we analyze successful factors to constitute Learning Communities, as well as, the motivation of the teaching staff to participate in the LC associated to the TU/e ALT. ALT may serve as an inspiring model for other engineering and technical higher education institutions and universities wishing to promote professional development of teachers

Recent Developments in the Applications of Fingerprinting Technology in the Food Field

info:eu-repo/semantics/publishedVersio

Metabolomics profiling of strawberry (Fragaria x ananassa) F1 population to characterize flavour and nutritional traits

The cultivated strawberry (Fragaria x ananassa) is a highly consumed fruit known for its delicate flavour and nutritional characteristics. However, as fruit quality attributes have been lost after years of traditional breeding, new technological tools, such as high throughput metabolomics, are necessary for the identification of factors responsible of these traits. Here we present the metabolomics profiling for the content of primary and secondary metabolites of a 95 F1 individuals strawberry population derived from genotype “1392”, selected for its superior flavour, and “232” (Zorrilla-Fontanesi et al., 2011; Zorrilla-Fontanesi et al., 2012). Metabolite profiling was performed on mature fruits of the strawberry population using gas chromatography hyphenated to time-of-flight mass spectrometry for primary metabolites and ultra performance liquid chromatography Exactive Orbitrap tandem mass spectrometry for secondary metabolites.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

Gauged Wess-Zumino terms and Equivariant Cohomology

We summarize some results obtained on the problem of gauging the Wess--Zumino term of a d-dimensional bosonic sigma-model. We show that gauged WZ-like terms are in one-to-one correspondence with equivariant cocycles of the target space. By the same token, the obstructions to gauging a WZ term can be understood in terms of the equivariant cohomology of the target space and this allows us to use topological tools to derive some a priori vanishing theorems guaranteeing the absence of obstructions for a large class of target spaces and symmetry groups in the physically interesting dimensions d<=4. (This is an expository summary of the results of hep-th/9407149.)Comment: 11 pages, uuencoded compressed .dvi file (uses AMSFonts 2.1+), QMW-PH-94-2