Mobility as movement: A measuring proposal based on transition matrices

In this note we introduce a family of functions that various theoretical results have revealed as useful mobility measures. These functions have enabled us to circumvent an impossibility result obtained by Shorrocks (1978), by adapting one of his axioms to the context of mobility as movement. A particular case belonging to this family is the Bartholomew index, which is widely used in the empirical literature.

Advanced Perovskite: fullerene blend films for perovskite solar cells with innovative configurations.

163 p.En esta tesis se estudia el empleo de fullerenos para la mejora de celdas solares de perovskita, un nuevo tipo de dispositivos fotovoltaicos construidos a partir de materiales híbridos que, desde su primera aplicación en 2009, han experimentado un crecimiento incomparable, debido primordialmente a sus particulares propiedades. Los fullerenos son conocidos por su habilidad para pasivar defectos en las capas de perovskita, por lo que, con este pretexto, serán disueltos en las disoluciones de perovskita para el procesado de capas compuestas perovskita:fullereno. En la tesis se exploran diferentes aspectos de estas capas. Por una parte, mediante el uso de C70, se prueba su eficacia para la fabricación de dispositivos eficientes sin capa transportadora de electrones, además de aumentar profundamente su fotoestabilidad. Esta estrategia será además optimizada estudiando las características de las disoluciones en las que se introducen los fullerenos, poniendo especial interés en las interacciones fullereno-disolvente. Este estudio prueba el efecto positivo de la utilización de pequeñas fracciones de disolventes aromáticos, pues se vio que el empleo de disolvente que interactúen fuertemente con el fullereno afectan a su distribución en la capa y finalmente el rendimiento de la celda solar. Esta estrategia también se ha implementado para diferentes fullerenos funcionalizados, probando que la funcionalización de la caja de fullereno afecta positivamente a los dispositivos. Finalmente, se estudiaron las interacciones perovskita-fullereno, probando que complejos en disolución más fuertes tienen un efecto positivo en la eficiencia de las celdas solares. El estudio permitió el diseño de un nuevo fullereno con valores de eficiencia mayores que 18%

The influence of blockholders on R and D investments intensity : evidence from Spain

This article studies the relationship between the presence of large shareholders in the ownership structure of firms and R and D investment. In our analysis, we consider the influence of three types of blockholders: banks, non-financial corporations, and individuals. Moreover, we incorporate an additional feature largely ignored in previous research, namely the number of blockholders. Consistent with our theoretical contention, our results indicate that the impact of large shareholders on the R and D investment is (1) negative when blockholders are banks, (2) positive when blockholders are non- financial corporations, and (3) null when blockholders are individuals. In addition, we find a systematic negative relationship between the number of blockholders and R and D investment. Finally, we contribute to current literature by extending our analysis in two novel ways. First, we test the impact of each blockholder type contingent to the life-cycle stage of firms. Second, we analyze the influence that the combined effect between blockholder type and R and D investment has on the firm's economic performance. Results of these extensions provide relevant implications for policy makers and academic research

Corporate ethical identity as determinant of firm performance : a test of the mediating role of stakeholder satisfaction

In this article, we empirically assess the impact of the Corporate Ethical Identity (CEI) on the firm's financial performance. Drawing on formulation of both normative and instrumental stakeholder theory, we argue that firms with a strong ethical identity achieve greater degree of stakeholder satisfaction, which in turn, positively influence the firms' financial performance. We further analyze two different dimensions of the CEI of firms: corporate revealed ethics and corporate applied ethics. Our results indicate that while revealed ethics has informational worth and enhance shareholder value, applied ethics has a positive impact through the improvement of stakeholder satisfaction. However, revealed ethics by itself (i.e. decoupled from ethical initiatives) is not sufficient to boost economic performance

El vocativo árabe / ya– como posible étimo de la interjección che / xe del castellano y el catalán valencianos: una apostilla a los diccionarios etimológicos

The interjection form che/xe represents one of the most appreciable characteristics of the Catalonian and Spanish speech in central region of Valencia. The final aim of this paper appears in correspondence with the absence of any etymological explanation of the term that, really, provides the linguistic origin of this one and the historical-geographic diffusion of its use. The result of the investigation leads to an etymological reformulation of the term hypothetically linked to the linguistic substrate of dialectal Andalusian Arabic and its late speakers, the Moorish, like determining of some linguistics peculiarities of the valencian area

Quien persiste en sus miradas hace perdurar su aflicción. Ontología de Amor en el Islam a través del Kitâb al-Zahra de Ibn Dâwűd de Ispahán

The aim of this paper is to bring into light the translation and commentary of the first chapter of Ibn Dâwűd of Ispahan’s (d. 909) Kitâb al-Zahra, a lyrical collection and speculation about the concept of love in Bagdadian Neoplatonic thought. This text is an adaptation of Aristotelian and Platonic theories on love to the Islamic tradition, which is based on the Arab poetic tradition and the moral precepts attributed to Muhammad. It deals –from an ontological perspective– with the contemplation of beauty as an object of sensual affection, which is the origin of the ailment of love.Se presenta en este trabajo la traducción comentada del primer capítulo del Kitâb al-Zahra de Ibn Dâwűd de Ispahán (m. 909), recopilación poética y teoría sobre la concepción amatoria del pensamiento neoplatónico bagdadí. El texto supone una adecuación a la tradición islámica de las teorías de origen aristotélico y platónico sobre el amor, aunque fundamentada en la tradición poética de los árabes y en la preceptiva moral atribuida a Mahoma. En él se aborda, desde un punto de vista ontológico, la contemplación de la belleza como objeto de afectación sensual, que es el origen de la dolencia de amor

Chemical characterization of an encapsulated red wine powder and its effects on neuronal cells

Red wine polyphenols are known for their implications for human health protection, although they suffer from high instability. For this reason, a red wine powder was prepared by freeze-drying encapsulation in maltodextrin/arabic gum matrix, and its composition was determined by means of high-performance liquid chromatography coupled quadrupole time-of-flight mass spectrometry (HPLC-MS-QTOF). More than thirty polyphenols, including anthocyanins, flavanols, flavonols, phenolic acids and stilbenoids, were identified. Some of the main quantified polyphenols were: malvidin-3-O-glucoside, malvidin 3-O-(6”-acetyl-glucose), petunidin-3-O-glucoside, quercetin-3-O-glucuronide, syringenin-3-O-glucoside, epicatechin, gallic acid and syringic acid. The biological activity of this de-alcoholized and encapsulated red wine on human neuroblastoma SH-SY5Y cells was studied. The results showed that the encapsulated red wine powder has active redox properties, as verified by performing reactive oxygen species (ROS) analysis utilizing a neuronal model. This could help explain its action against the neurotoxicity induced by 6-hydroxydopamine (6-OHDA).Fil: Rocha Parra, Diego Fernando. Consejo Superior de Investigaciones Científicas. Instituto de Ciencia y Tecnologia de Alimentos y Nutrición; España. Pontificia Universidad Católica Argentina "Santa María de los Buenos Aires"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Chirife, Jorge. Pontificia Universidad Católica Argentina "Santa María de los Buenos Aires"; ArgentinaFil: Zamora, María Clara. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Pontificia Universidad Católica Argentina "Santa María de los Buenos Aires"; ArgentinaFil: de Pascual Teresa, Sonia. Consejo Superior de Investigaciones Científicas. Instituto de Ciencia y Tecnologia de Alimentos y Nutrición; Españ