A Security Pattern for Cloud service certification

Cloud computing is interesting from the economic, operational and even energy consumption perspectives but it still raises concerns regarding the security, privacy, governance and compliance of the data and software services offered through it. However, the task of verifying security properties in services running on cloud is not trivial. We notice the provision and security of a cloud service is sensitive. Because of the potential interference between the features and behavior of all the inter-dependent services in all layers of the cloud stack (as well as dynamic changes in them). Besides current cloud models do not include support for trust-focused communication between layers. We present a mechanism to implement cloud service certification process based on the usage of Trusted Computing technology, by means of its Trusted Computing Platform (TPM) implementation of its architecture. Among many security security features it is a tamper proof resistance built in device and provides a root of trust to affix our certification mechanism. We present as a security pattern the approach for service certification based on the use TPM.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tec

La contratación temporal en España

En este trabajo se realiza una revisión de algunos de los trabajos que existen en la literatura sobre la temporalidad en el mercado de trabajo español. Asímismo, se lleva a cabo un estudio de la normativa que regula la temporalidad en el país, centrándonos en la regulación de los tres contratos más utilizados: de obra o servicio determinado, eventual y de interinidad. Además llevaremos a cabo un análisis de datos de la temporalidad en España. Tomaremos un enfoque en bse a tres puntos de vista: a nivel europeo, a nivel nacional y a nivel regional. Finalmente, el trabajo terminará con una recopilación de las principales conclusiones extraídas del estudio realizado.Grado en Relaciones Laborales y Recursos Humano

Bounding Hilbert Space dimension from Temporal Correlations

Projecte realitzat en col.laboració amb l'IFCOIn this work, we tackle the problem of assessing the Hilbert space dimension from the set of correlations obtained when measuring in a nonlocal black box scheme. The concept of a dimension witness and its recent applications are explored. We also extend these new ideas to the case of a single local box with measurements at different times, and provide some examples of dimension criteria for this case

Bildungsroman. Stories to grow

El "bildungsroman" es un género narrativo que se caracteriza por presentar una evolución en el personaje protagonista a lo largo de sus páginas. También es conocido como novela de formación o novela de aprendizaje. El autor del artículo considera que se trataría del más genuino género narrativo aplicado a la literatura juvenil porque en la adolescencia tiene lugar en la persona una profunda transformación que posibilita la identificación entre el lector y el personajeA "bildungsroman" is a literary genre characterized by the evolution of the main character throughout its pages. It is also known as novel of formation or coming-of-age novel. The author of this article believes that it would be the most authentic genre used in Young-Adult fiction, as it is during the adolescence when the deep transformation that allows the identification between the reader and the character takes place.peerReviewe

Sealing pots in Upper Mesopotamia in the late third millennium

Although the practice of sealing is well attested in Mesopotamia due to the numerous finds of cylinder-seals, clay sealings and bullae, when considering sealing impressions on pots the scope of this study dwindles remarkably. Within the last two decades Near Eastern archaeology has paid much more interest to this kind of impressions, specifically in the area of the Khabur basin, where archaeological sites such as Tell Beydar, Tell Arbid and Tell Brak have provided us with good samples of how this administrative device was used. The analysis of typology and the context of the pottery and its respective sealing will help us better understand the administrative schemes in Upper Mesopotamia during the Late Third Millennium, and whether Southern Mesopotamia influence is visible in local styles and shapesA pesar de que la utilización de sellos está bien documentada en Mesopotamia gracias al hallazgo de un elevado número de cilindro-sellos, cretullae y bullae, si centramos el espectro a las improntas de cilindrosellos en cerámica éstos merman notablemente. A lo largo de las últimas dos décadas la arqueología próximo-oriental ha intensificado su interés en este tipo de improntas, muy especialmente en la cuenca del Khabur, donde yacimientos como Tell Beydar, Tell Arbid y Tell Brak han proporcionado valiosas muestras de la manera en que dichos instrumentos administrativos eran utilizados. El análisis de la tipología y contexto arqueológico de la cerámica y su correspondiente sello puede ayudarnos a comprender de una manera más amplia las estructuras administrativas en la Alta Mesopotamia a fines del Tercer Milenio a.C. y a valorar si la influencia del Sur de Mesopotamia era reconocible en las formas y estilo

CFD study of the influence of mountain and valley shapes on wind propagation

In the following work an aerodynamic study is explained, which consists in seeing the influence of the earth’s surface on the wind propagation. Specifically in plains, uphill and downhill slopes, basic geometries that represent terrestrial and mountainous areas. Once the wind passes through the mentioned domains, the resulting velocity profile is analysed. All in order to provide scientific evidence to the investigations of wind energy, showing the heights where a wind turbine takes advantage of the maximum kinetic energy of the wind. To make it possible, a free and commercial program in Computational Fluid Dynamics (CFD) called OpenFOAM is used. In it, the physical conditions of the boundaries of each geometry are specified. Like the inlet of the flow, the land through which it spreads, its outlet and the top limitation. The boundary conditions are examined and the most suitable ones for this work are concluded. The roughness is simulated by the ”wall functions”, which represent the obstacle of the terrain. The turbulence that appears in consequence, is analysed by the RANS model, specifically that of k-epsilon. And in order to reduce factors that may increase this turbulence, the inlet velocity that is imposed is reduced. Physical knowledge about the Atmospheric Boundary Layer is taken into account in the work. In addition to having as reference the studies carried out by Richard and Hoxey in 1993, which modelled a theoretical velocity profile adapted to the conditions of the Atmospheric Boundary Layer. Model that is used as the theoretical velocity of each simulation, so the results will be compared with it. Finally, the results obtained are discussed, as well as other factors that are taken into account throughout the work. The study ends with some conclusions about the results and the objective of the proposed research.En el siguiente trabajo se explica un estudio aerodinamico, que consiste en ver la ínfluencia que tiene la superficie terrestre sobre la propagacion del viento. Concre- ´ tamente en llanuras, pendientes de subida y de bajada, geometrías basicas que ´ representan desniveles terrenales de zonas montanosas. Una vez el viento atraviesa ˜ los dominios mencionados, se analiza el perfil de velocidad resultante. Todo con tal de proporcionar evidencia científica a las investigaciones de la energía eolica, ´ mostrando las alturas en donde un aerogenerador aprovecha la maxima energ ´ ía cinetica del viento. Para hacerlo posible, se utiliza un programa libre y comercial én Dinamica de Fluidos Computacional (CFD) denominado OpenFOAM. En ´ el, se éspecifican las condiciones físicas de los contornos de cada geometría. Como la entrada del flujo, el terreno por donde se propaga, su salida y la limitacion superior. ´ Se examinan las condiciones de contorno y se concluyen cuales son las m ´ asádecuadas para la tesis. La rugosidad se simula mediante las “funciones de pared”, las cuales representan la obstaculizacion del terreno. La turbulencia que aparece en ´ consecuencia, se analiza mediante el modelo RANS, concretamente el de k-epsilon. ´ Y con tal de reducir factores que puedan aumentar dicha turbulencia, la velocidad de entrada que se impone es reducida. Conocimientos físicos sobre la Capa Límite Atmosferica se tienen en cuenta en él trabajo. Ademas de tener como referencia los estudios realizados por Richard ´ y Hoxey en el 1993, los cuales modelaron un perfil de velocidad teorico adaptado á las condiciones de la Capa Límite Atmosferica. Modelo que se usa como ve- ´ locidad teorica de cada simulaci ´ on, por lo que los resultados se comparar ´ an con ´ este. ´ Finalmente se discuten los resultados obtenidos, así como otros factores que se tienen en cuenta a lo largo del trabajo. El estudio termina con unas conclusiones sobre los resultados y el objetivo de la investigacion plantead

Teachers’ satisfaction as indicator of education system performance

We investigate the potential trade-off between some teacher characteristics, particularly teachers’ satisfaction, and different measures of pupils’ performance, in order to optimize the outputs of the Spanish education system. Our contribution to the existing literature is twofold: on the one hand, we provide estimates on the balance between teachers’ effectiveness and 4th grade students’ performance in Spain, by using recent survey data (TIMSS, 2011); on the other hand we implement a novel methodology which allows optimizing simultaneously a set of indicators on the outputs of the educational system. These analyses provide empirical evidence of the importance of investing in teacher satisfaction as a motivation mechanism for improving national educational achievement.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech. This research has been partially supported by the Andalusian Regional Ministry of Innovation, Science and Enterprise (PAI group SEJ-532). We also acknowledge the research funding provided by Andalucía-Tech (Universidad de Malaga),the Research Plan of the University of Malaga (Capacity Building Programme I+D+i of Universities 2014-2015, FEDER Funds) and by the Ministry of Economy and Competitiveness of Spain (Research Project ECO2014-56397-P). Luis Alejandro Lopez-Agudo also acknowledges the research training provided by the “Programa de Doctorado en Economía y Empresa de la Universidad de Malaga”