Search results for " state"
showing 10 items of 5973 documents
Large scale modelling of photo-excitation processes in materials with application in organic photovoltaics
2019
La energía fotovoltaica a partir de materiales orgánicos representa una opción muy atractiva, en términos de costo y flexibilidad, para generar electricidad. Sin embargo, las bajas eficiencias alcanzadas hasta ahora limitan la producción de dispositivos fotovoltaicos a escala comercial. En el intento de superar las bajas eficiencias hoy en día se dedican considerables esfuerzos en la investigación y el diseño de materiales orgánicos así como de arquitecturas de dispositivos más eficientes. En particular esta tesis doctoral presenta un trabajo de carácter fundamental sobre los procesos de fotoexcitación en dispositivos optoelectrónicos orgánicos, donde se usan química teórica y modelización …
Fast Photochemistry of Prototypical Phytochromes : A Species vs. Subunit Specific Comparison
2015
Phytochromes are multi-domain red light photosensor proteins, which convert red light photons to biological activity utilizing the multitude of structural and chemical reactions. The steady increase in structural information obtained from various bacteriophytochromes has increased understanding about the functional mechanism of the photochemical processes of the phytochromes. Furthermore, a number of spectroscopic studies have revealed kinetic information about the light-induced reactions. The spectroscopic changes are, however, challenging to connect with the structural changes of the chromophore and the protein environment, as the excited state properties of the chromophores are very sens…
The Latent Factors Behind the Urban Travel Behaviour
2014
Abstract This research aims to explore the impact of latent variables, mirroring the users’ preferences, on the individual decision making process regarding the mode of transport. The paper describes the first results of an ongoing research activity, which derives from a pilot study carried out in Palermo. The authors have administered to a sample of travellers a questionnaire and they simulated the mode choice behaviour referring to the random utility theory. Then the transport demand over the entire area of Palermo has been studied in order to design the cordon pricing scenario with the application of an additional cost on private car dedicated to a selected area of the historic centre of…
USA on the road: da The Americans di Robert Frank ad American Surfaces di Stephen Shore
2018
Robert Frank’s and Stephen Shore’s photographic reportages and their travels document an identity of the United States different from the conventional representations that usually show a successful country, able to enforce its social, economic, political, and aesthetics models. These reportages represent an other America, far from the stereotypes and full of contradictions: the places of common experience (almost non-places), the characters disillusioned and frustrated by the American dream, the banality of the situations represented, the commonplace, show that besides a winner’s imagery (like, recently, the one represented by Trump but also by Pete Souza, official photographer of Barack Ob…
Immunoaffinity purification and characterization of mitochondrial membrane-bound D-3-hydroxybutyrate dehydrogenase from Jaculus orientalis.
2008
Abstract Background The interconversion of two important energy metabolites, 3-hydroxybutyrate and acetoacetate (the major ketone bodies), is catalyzed by D-3-hydroxybutyrate dehydrogenase (BDH1: EC 1.1.1.30), a NAD+-dependent enzyme. The eukaryotic enzyme is bound to the mitochondrial inner membrane and harbors a unique lecithin-dependent activity. Here, we report an advanced purification method of the mammalian BDH applied to the liver enzyme from jerboa (Jaculus orientalis), a hibernating rodent adapted to extreme diet and environmental conditions. Results Purifying BDH from jerboa liver overcomes its low specific activity in mitochondria for further biochemical characterization of the e…
La radicalidad del mal banal
2002
El concepto de ‘banalidad del mal’ fue introducido por Hannah Arendt a fin de caracterizar una forma inédita de perversidad que ella vio encarnada en Adolf Eichmann y otros criminales nazis. Arendt consideraba que esa forma de perversidad estaba muy alejada de la noción de ‘mal radical’ que Kant había acuñado y la propia Arendt había empleado en trabajos anteriores. El objetivo principal del artículo es mostrar que hay más afinidades entre el mal radical kantiano y la banalidad del mal de lo que la propia Arendt reconoce. ‘Banality of evil’ was a concept introduced by Hannah Arendt in order to characterize a new form of wickedness embodied in people as Adolf Eichmann and others nazis crimin…
Federalism and Ethnic Minorities in Ethiopia: Ideology, Territoriality, Human Rights, Policy
2014
In 1994 Ethiopia has adopted a new constitution, considered one of the most advanced in terms of provisions for human rights. The progressive ratification of several international treaties on minority rights had already begun in 1991, immediately after the fall of the Derg regime. This progress has brought Ethiopia into the UN monitoring system, but the review of the official UN documents reveals the mismatch between the mentioned constitutional and international steps and the on-ground situation. This article considers two possible causes of this gap. The first is the particular form of ethnic federalism, first introduced with the Charter of the Transitional Government of Ethiopia and late…
Emotional Intelligence and Psychobiosocial States: Mediating Effects of Intra-Team Communication and Role Ambiguity
2020
Emotional intelligence is an important variable related to the interaction and functioning of sports teams. The present study examined the relationship between players’ trait emotional intelligence and functional and dysfunctional psychobiosocial states. In particular, we examined the mediating effects of intra-team communication efficacy and role ambiguity in this relationship. The participants were 291 (174 men and 117 women) Italian players involved in various team sports (i.e., futsal, soccer, volleyball, handball, and rugby). They completed a multi-section questionnaire assessing the study variables during the early/middle part of their competitive seasons. Structural equation modeling…
Animacja społeczno-kulturalna w działaniu. Refleksja praktyka z perspektywy ćwierćwiecza
2019
Artykuł omawia cywilizacyjny kontekst powstania animacji społeczno-kulturalnej i jej dawne uwarunkowania, wskazując na rozwój jej zadań i funkcji. Animacja to dziejąca się zmiana w grupach i społecznościach lokalnych, będąca nerwem demokracji i społeczeństwa obywatelskiego. Artykuł kończy uzasadnienie jej potrzeby w skomplikowanej sytuacji funkcjonowania człowieka w zglobalizowanym świecie.
Kant, la Ilustración y la Domesticación del Ser Humano
2011
RESUMENEste trabajo pretende entender qué idea de justicia implícita es inherente a las reflexiones de Kant sobre la Ilustración y en particular en su artículo publicado en 1784 sobre este tema. Para poder entender esta noción, demuestro cómo Kant pretende redefinir las relaciones entre el Estado y los individuos, neutralizando lo que llama la domesticación del ser humano. La liberación que surge de este proceso debe provocar una redefinición de la conducta política y legal del Estado en relación con los ciudadanos, ampliando y garantizando al mismo tiempo sus derechos. ABSTRACT This paper aims to show what kind of implicit idea of justice underlies some of the reflections of Kant concernin…