Competencias del Estado y de las Comunidades Autónomas en relación con el Espacio Europeo de Educación Superior

Analiza el Espacio Europeo de Enseñanza Superior y la distribución de competencias entre el Estado español y las Comunidades Autónomas en punto a la definición de un sistema propio de Universidades y, en general, de Educación superior

IT and dynamic capabilities

Organisations are involved in a continuous process of change in order to renew capabilities and achieve a competitive advantage in a hypercompetitive setting. This paper proposes a model for the creation of dynamic capabilities and studies the complementary role of Information Technology Capabilities in supporting this creation process: 1) Identifying the firm's repertory of capabilities (over time and space); 2) maintaining a capabilities catalogue; and, 3) assisting the transformation of existing capabilities and internal transfer of new synthesised capabilities throughout the organisation

Optical Transmittance for Strongly-Wedge-Shaped Semiconductor Films: Appearance of Envelope-Crossover Points in Amorphous As-Based Chalcogenide Materials

In this work, we study the influence of the geometry of a thin film on its transmission spectrum, as measured on amorphous As-based chalcogenide layers grown onto 1-mm-thick soda-lime-silica glass substrates. A new method is suggested for a comprehensive optical characterization of the film-on-substrate specimen, which is based upon some novel formulae for the normal-incidence transmittance of such a specimen. It has to be emphasized that they are not limited to the usual cases, where the refractive index, n, of the film and that of the thick transparent substrate, s, must obey: n(2) >> k(2) and s(2) >> k(2), respectively, where k stands for the extinction coefficient of the semiconductor. New expressions for the top and bottom envelopes of the transmission spectrum are also obtained. The geometry limitation usually found when characterizing strongly-wedge-shaped films, has been eliminated with the introduction of an appropriate parameter into the corresponding equations. The presence of crossover points in the top and bottom envelopes of the transmission spectrum, for these strongly-wedge-shaped chalcogenide samples, has been both theoretically predicted and experimentally confirmed

Method for and Analysis of Early-Stage Firm Growth Patterns Using World Bank Data

Venture growth and entrepreneurial activity impact aspects of modern societies, such as wealth creation, employment, and innovation, and also potentially influence sustainable development, a key focus in the social sciences. The study of firms has benefitted from solid theoretical foundations dating back to Edith Penrose’s The Theory of the Growth of the Firm. Yet, early-stage firms, as one of the fastest-growing types of firms, continue to be poorly understood. Therefore, we focus our analysis on the specificities of the growth patterns of new firms. Our contribution to the literature is to derive an empirically based set of growth patterns observed among early-stage firms that can be used for theory testing and in proofs. Our analysis, grounded in data from theWorld Bank Enterprise Surveys (WBES) encompassing over 140,000 entries, provides insights into growth patterns in early-stage firms, indirectly indicating potential intersections with sustainable business practices related, for example, to management team experience. More importantly, to make our research applicable to current realworld decisions, we evaluate the predictive capacity of these growth patterns and provide a series of conclusions that could help practitioners better evaluate the growth potential of early-stage firms

A mixed boundary condition for accounting energy absorption and transmission in a diffusion equation model

The acoustic diffusion equation model has shown to be a versatile alternative model for certain types of scenarios where the classical geometrical methods have been demonstrated to be inefficient or even inaccurate. In certain scenarios, the transmission loss plays a fundamental role for accounting, i.e., noise levels and sound propagation between rooms. This paper presents an extension of the absorption boundary conditions known as modified that unifies previously proposed boundary conditions in one equation, including transmission of energy between coupled rooms by both openings and enclosures.Ingeniería, Industria y Construcció

The social and economic impact of major events on the lives of cities. Cadiz 2012: lessons for good practices

En las páginas que siguen, se presenta un amplio resumen sobre un curso de verano celebrado en la Universidad de Cádiz este mismo año. En este curso, se pidió a los numerosos ponentes una reflexión, desde sus distintos enfoques profesionales, sobre el impacto que, sobre una ciudad como Cádiz, puede llegar a tener un magno evento de las características del Bicentenario de la Constitución de 1812

Analytical ray transfer matrix for the crystalline lens

We present the formulation of a paraxial ray transfer or ABCD matrix for onion-type GRIN lenses. In GRIN lenses, each iso-indicial surface (IIS) can be considered a refracting optical surface. If each IIS is a shell or layer, the ABCD matrix of a GRIN lens is computed by multiplying a typically high number of translation and refraction matrices corresponding to the K layers inside the lens. Using a differential approximation for the layer thickness, this matrix product becomes a sum. The elements A, B, C, and D of the approximated GRIN ray transfer matrix can be calculated by integrating the elements of a single-layer matrix. This ABCD matrix differs from a homogeneous lens matrix in only one integration term in element C, corresponding to the GRIN contribution to the lens power. Thus the total GRIN lens power is the sum of the homogeneous lens power and the GRIN contribution, which offers a compact and simple expression for the ABDC matrix. We then apply this formulation to the crystalline lens and implement both numerical and analytical integration procedures to obtain the GRIN lens power. The analytical approximation provides an accurate solution in terms of Gaussian hypergeometric functions. Last, we compare our numerical and analytical procedures with published ABCD matrix methods in the literature, and analyze the effect of the iso-indicial surface’s conic constant (Q) and inner curvature gradient (G) on the lens power for different lens models

Percepción social de acoso sexual en el trabajo

The sexual harassment in the work, is a social phenomenon that is going out to the light in the last years. The statistics inform about the shortage of denunciations that they take place in spite of being a phenomenon that every time becomes more visible in our company. The aim of the present study is to analyze the perception and information that exists related to the phenomenon of the sexual harassment as relevant variable for the accomplishment of programs of prevention both in professional futures and in the professionals who form a part of a job environment. One administered a questionnaire to a sample of 65 pupils / aces of the Qualifications of Psychology and 15 pupils / aces of the University of Huelva, and 44 persons who are immersed in the labour world. The results indicate lack of formation and information about the phenomenon of the sexual harassment as well as of awareness specially towards the victim.El acoso sexual en el trabajo, es un fenómeno social que está saliendo a la luz en los últimos años. Las estadísticas informan sobre la escasez de denuncias que se producen a pesar de ser un fenómeno que cada vez se hace más visible en nuestra sociedad. El objetivo del presente estudio es analizar la percepción e información que existe relacionado con el fenómeno del acoso sexual como variable relevante para la realización de programas de prevención tanto en futuros profesionales como en los profesionales que forman parte de un entorno laboral. Se administró un cuestionario a una muestra de 65 alumnos/as de la Titulación de Psicología y 15 alumnos/as de la Titulación de Ciencias del Trabajo de la Universidad de Huelva, y 44 personas que se encuentran inmersos en el mundo laboral. Los resultados indican falta de formación e información sobre el fenómeno del acoso sexual así como de sensibilización especialmente hacia la víctima

Characterization of wind-blown sediment transport with height in a highly mobile dune (SW Spain)

The Valdevaqueros dune is located at one of the windiest points of Europe, where the frequent occurrence of strong easterly winds has generated a highly mobile dune. Several rotating cup anemometers in vertical array and a self-designed vertical sand trap, were placed to retain the drift sands at different heights over the surface in order to determine theoretical and actual sand transport rates in the Valdevaqueros dune system. General results show that 90% of the wind-blown sand is transported within the first 20cm above the dune crest surface. Theoretical transport rates based on different empirical formulae were 0.33 to 0.78 times the in-situ sand transport rate detected, which was 2.08·10-2kgm-1s-1 under moderate wind power (mean speed ranging from 8.4 to 17.9ms-1). Analysis of different statistical grain-size parameters helped to understand sand transport distribution at different heights