Coulomb-driven flow of a dielectric liquid subject to charge injection by a sharp electrode

Injection of charge by a sharp electrode into a surrounding dielectric liquid leads to Coulomb forces that set the liquid into motion. An analysis is presented of this motion in a small region around the edge of the electrode, which determines the injected current as a function of the far electric potential seen by this region. By using an injection law appropriate for nonpolar liquids, the analysis predicts an electric current that increases first exponentially and then as the power 7 3 of the harmonic part of the electric potential, sometimes with a range of multiplicity in betweenMinisterio de Ciencia e Innovación PB95-0008

Overview of the audio description in spanish DTT channels

This paper presents an analysis of current practices in audio description in Spanish TV channels. The results of this research show that in some channels the audio description is broadcasted for ‘receiver mix audio description’ while in other channels the alternative used is ‘broadcaster mix audio description’. The problems detected for the activation of audio description in users’ TVs can be solved applying some enhancement to signaling information used by broadcasters in their DVB TV channels. Finally, some recommendations for the users are included to present the key aspects to audio description activation in their TVs

Variación estacional de esporas fúngicas en el aire de Huelva de abril de 1989 a abril de 1991

En este trab¡]jo pretendemos estudiar I:J micoOora de 1;. :ttm6:,(cr:-~ de 1:~ ci ud~1d de Huch•a, situada en el SW de Esp~ii;~, que prcscnw un Jito lli.,.el de cont:tmin:tción. An:tlizam~ la incidencia y la evolución bianual (10 de abril de 1989 a M de obril de 1 9~ 1 ) de esporas de hongos pertenecientes o 3 géneros, 17 g-fncros forma y a cuatro ~rupu::, :,in -.:utcgorfa taxonómica, atcndiendu a la modologfu de ::,us ~;sporas: asoospura!., ha!'.idin!.pora.;;, 1111Ícclul<~ res y pluricelulares no identilicadas. He~nos ccnlmdo 11\IC!i.lt:t atención \!n aquellos grupo~ que dcslacan por su abund:mcíJ, por SLJ caráctc.r alcrgiL1nte o [)Or su interés en el c-.unpo de la agrkultu r:~. Por otra parle los resultJdos obtcnitlos los rclncionamo.., cou loe; r'nr{imetro::. meteorológicos.This work sturJics thc micoOora prcscnt in tlu.: aunosphcrc or thc city of Hu el· va, which is loC".deV in the South West of Spain wich ha:, an clcvntcd polhu ion lcvcl. Wc anali1..cd thc presence ;~nd biannual variatiOil {lO april JC}89 to ~ í•pril 1991) of 5porcs of fungi bclonging ro threc genera, ~evcntccn form gcnc.ra and fnur gropus which lack taxonomical catcgory from cxaminotion of thc sporc morphology: ~~rores, b:t ~idi o~porcs, unicclubr and pluricelu lar unidcntificd. Wc ha\·~ p:~id spccml :mcmion tQ thuw. group!oo whic.:h are oí int er~t in thc. agricultura! r.eh.l On tbe ~ rcr hall, th\.: rc~uh ~, oht;1incd ~hllwCd ~.;orrclat ion~ \lo~lh mc1eorologic.1l pilrilmclers

Estudio aeropolínico de Sevilla (1988-1990)

Se presenta en d presente trabajo la VJriación anu;al del contenido =-eropolínico de la ciudad de Se\illa (Andalud a, España), establecida a pa rlir de IJ.S medias de los Oalos oU«enidos semanalmente en tres a ño~ de muemco (1988, 1989 y 1990). Pan1 d io se hun em· ple.1do dos c-...ptudorcs polfnicos tipo Cour COilVc.nie.nlemcntc distribuidos en la g,eo~ra ria ur· bJDJ.Wc providc in this work a stuc.ly on thc annual variJLion or airbuwc poli en in the ilir or Se\'ille (Aru.lalus1 a, Spain). Samples wc:rc carried out during thr~e consceutivc ycnrs ( 1988, 1989 and 1990) usin& two Cour's collcccou which \lot.re p~t ioned, onc at t.hc: cily centre and thc Olber on 1hc outskirts {airporl)

The Spanish version of the Work-related Acceptance and Action Questionnaire (WAAQ)

Background: Psychological flexibility, a key construct of Acceptance and Commitment Therapy (ACT), has recently been found to be an important determinant of mental health and behavioral effectiveness in the workplace. This finding has led to designing a measure of psychological flexibility especially tailored to the workplace (the Work-related Acceptance and Action Questionnaire; WAAQ) in the hope that it may reveal even stronger associations with variables related to a work context. Method: First, we back-translated the WAAQ into Spanish and then administered it to 209 workers, in addition to other relevant work-related measures. Results: Data were very similar to those obtained with the original WAAQ version. The WAAQ showed a very good internal consistency (a = .92) and a clear one-factor structure. It also showed higher correlations with work-specific measures than a general measure of psychological inflexibility (the Acceptance and Action Questionnaire-II; AAQ-II). As hypothesized by the ACT theory, the correlation between the WAAQ and the AAQ-II was moderate but not so high as to suggest that they are assessing the same construct. Conclusions: This Spanish translation of the WAAQ emerges as a reliable and valid measure of psychological flexibility in relation to the workplace. Versión española del Cuestionario de Aceptación y Acción Relacionado con el Trabajo (WAAQ). Antecedentes: la flexibilidad psicológica, un constructo central en la Terapia de Aceptación y Compromiso (ACT), ha mostrado ser un determinante importante de la salud mental y la efectividad conductual en el trabajo. Estos hallazgos han llevado a diseñar una medida de flexibilidad psicológica ajustada al contexto laboral (Cuestionario de Aceptación y Acción en el Trabajo; WAAQ) que pudiera mostrar asociaciones incluso mayores con variables relacionadas con el contexto laboral. Método: se realizó una traducción inversa del WAAQ en español y se aplicó a 209 trabajadores conjuntamente con otras medidas. Resultados: los datos obtenidos fueron muy similares a los de la versión original. El WAAQ mostró muy buena consistencia interna (a= .92) y una estructura unifactorial. Además, el WAAQ mostró correlaciones más altas con medidas específicas del contexto laboral que una medida general de inflexibilidad psicológica (el Cuestionario de Aceptación y Acción - II; AAQ-II). Tal y como hipotetiza el modelo de ACT, la correlación entre el WAAQ y el AAQ-II fue moderada y no tan grande como para sugerir que ambos cuestionarios miden el mismo constructo. Conclusiones: la presente versión española del WAAQ se muestra como una medida fiable y válida de la flexibilidad psicológica en el contexto laboral

Analysis of variance in household financial portfolio choice: evidence from Spain

We analyse the determinants of the household financial portfolio allocation using an estimator and a variance decomposition that take into account the constrained nature of household portfolio allocations. We apply these methods to a large data set of financial assets. Results show that the main factors underlying household financial portfolio choice in Spain are age and net wealth. Among others, there is also evidence of sizeable effects associated with risk aversion, education, liquidity constraints and income, but very modest effects are associated with family size and having accounts in stand-alone internet banks. Implications for policy are also derived

Integration in the European higher education area: the case of military education

Military training has always been considered as an education system with its own characteristics that distinguished it from the rest of higher education. However, different initiatives have been developed in order to integrate military education in the European Higher Education Area (EHEA). This paper analyses the European system of military institutions of higher education (MHEI). Results indicate MHEI sector has distinctive features that have increased the diversity of European HEIs. Further, the emergence of the MHEI sector can have benefits for both the European defence and their educational attainment. From a defence point of view, it can help the development of a European strategic culture and increase cooperation between countries in defence and security. From the education area modernisation, it will improve defence and security related research and may enhance defence knowledge transfer. In this way, the MHEI sector will be positioned as key player in the development of the Common Security and Defence Policy and a European strategic culture

Do investors react to corporate governance news? An empirical analysis for the Spanish market

This work adds to the debate on corporate governance regulations and its effects on performance and firm value. The paper empirically tests whether there is a significant price reaction to corporate governance announcements following the publication of the Aldama Code of Best practice (2003) in Spain. In particular, news announcements are classified according to the code principles to distinguish among different dimensions of corporate governance and have a better understanding of investors'' reaction. Results show first, that investors react to this kind of practices, second, that the sign of their reaction depends crucially on the nature and extension of the recommendation and finally that firms that disclose more do not enjoy higher market prices or return on the medium-long term