Sargadelos en los albores del capitalismo industrial español: entre la iniciativa privada y la promoción reformista

Análisis de la génesis de las Reales Fábricas de Sargadelos desde la perspectiva política del reformismo ilustrado y la historia de las mentalidades, así como sus aspectos económicos en los inicios del capitalismo industrial. Se indagan además las particularidades sociales y militares que conducen al éxito empresarial de Sargadelos hasta la muerte de su fundador, Don Antonio Raimundo Ibáñez. Todo ello planteado en el contexto de la dinámica general española durante el último tercio del siglo XVIII y los comienzos del XIX, coincidiendo con la crisis final del Antiguo Régimen.Departamento de Historia Moderna, Contemporánea y de América, Periodismo y Comunicación Audiovisual y PublicidadGrado en Histori

Avoiding core's DUE & SDC via acoustic wave detectors and tailored error containment and recovery

The trend of downsizing transistors and operating voltage scaling has made the processor chip more sensitive against radiation phenomena making soft errors an important challenge. New reliability techniques for handling soft errors in the logic and memories that allow meeting the desired failures-in-time (FIT) target are key to keep harnessing the benefits of Moore's law. The failure to scale the soft error rate caused by particle strikes, may soon limit the total number of cores that one may have running at the same time. This paper proposes a light-weight and scalable architecture to eliminate silent data corruption errors (SDC) and detected unrecoverable errors (DUE) of a core. The architecture uses acoustic wave detectors for error detection. We propose to recover by confining the errors in the cache hierarchy, allowing us to deal with the relatively long detection latencies. Our results show that the proposed mechanism protects the whole core (logic, latches and memory arrays) incurring performance overhead as low as 0.60%. © 2014 IEEE.Peer ReviewedPostprint (author's final draft

Planktonic diatoms from the coast of Andalusia (Spain)

Se estudian un total de 206 taxones identificados durante el estudio del ciclo anual realizado en las costas de Andalucía a lo largo del año 2000. Destacan, entre las diatomeas céntricas, la subclase Coscinodiscophycidae con 27 taxones y la subclase Chaetocerotophycidae con 28. Entre las pennadas destaca la clase Bacillariophyceae con 76 species. Los géneros que mostraron un mayor número de taxones fueron Chaetoceros, Thalassiosira y Rhizosolenia en el grupo de diatomeas céntricas, mientras que entre las pennadas destacaron los géneros Lyrella, Gyrosigma y Pseudonitzschia. Respecto a su distribución espacial, se han detectado 12 especies exclusivamente atlánticas, mientras que 69 fueron mediterráneas. El resto de taxones presentó una distribución más amplia tanto mediterránea como atlántica. En cuanto a la abundancia celular hemos considerado 119 taxones en la categoría de raros, 57 de habituales y 29 como taxones mayoritarios. Entre los últimos destacaron Hemiaulus sinensis y Eucampia cornuta con carácter marcadamente atlántico, y en la zona mediterránea Cerataulina pelagica y Proboscia alata f. inermes. Las especies más abundantes de todo el litoral andaluz fueron Leptocylindrus minimus, Leptocylindrus danicus, Pseudonitzschia fraudulenta, Skeletonema costatum, Thalassionema nitzschioides, Guinardia striata, Guinardia delicatula y Dactyliosolen phuketensi

Penelope: The NBTI-aware processor

Transistors consist of lower number of atoms with every technology generation. Such atoms may be displaced due to the stress caused by high temperature, frequency and current, leading to failures. NBTI (negative bias temperature instability) is one of the most important sources of failure affecting transistors. NBTI degrades PMOS transistors whenever the voltage at the gate is negative (logic inputPeer ReviewedPostprint (published version

Trabectedina (Yondelis): un agente antitumoral aislado de la ascidia Ecteinascidia turbinata

A lo largo del tiempo, innumerables formas de vida marina han evolucionado para producir una inmensa variedad de sustancias químicas. Entre éstas se encuentran moléculas que manifiestan una potente actividad biológica, desarrolladas como una forma de defensa bioquímica para sobrevivir en un entorno extremadamente competitivo. Este arsenal de moléculas (metabolitos) constituye una fuente constante de nuevos agentes terapéuticos con los cuales combatir todo tipo de enfermedades. La trabectedina, aislada a partir de la ascidia Ecteinascidia turbinata en aguas del Caribe, es un ejemplo de sustancia de origen marino que en la actualidad se emplea como fármaco para el tratamiento del sarcoma de tejidos blandos avanzado o metastático. En este trabajo se estudiaría su aislamiento a partir de fuentes naturales, así como la determinación de su estructura, biosíntesis y síntesis en el laboratorio a gran escala, prestando especial atención a los aspectos químicos

El cambio organizacional: un proceso estratégico de adopción y adaptación

Todos los agentes sociales (personas, grupos, organizaciones, sociedades) se encuentran expuestos al medio que los rodea. Las actividades que a diario realizan todos estos agentes están influenciadas por un sinfín de externalidades que de cierta forma complementan y modifican su comportamiento. Este artículo se centra en el análisis del cambio organizacional y en la forma en cómo las organizaciones pueden enfrentarlo para poder asimilarlo de manera adecuada. El cambio organizacional puede ser entendido como un proceso estratégico constante y multiperspectivo de adopción y adaptación y, en este sentido, la asimilación del cambio depende de la manera en cómo son gestionados estos dos procesos (adopción y adaptación) dentro de las organizaciones. La concepción del cambio como un proceso constante implica que las organizaciones continuamente se enfrentan a él, y en consecuencia una importante labor de las mismas es entender la naturaleza del cambio para poder enfrentarlo adecuadamente. La utilización del enfoque de procesos en el entendimiento del cambio organizacional permite estudiar de manera general las causas y consecuencias del cambio sin desligarlas de sus partes constitutivas, esto es, el enfoque de procesos permite estudiar un evento (cambio) en su conjunto sin separarlo de sus relaciones con otros elementos.Social agents (people, groups, organizations, societies) are exposed to the environment that surrounds them. The agent´s daily activities are influenced by multiple externalities that, in some way, complement and modify their behavior. This article focuses in the analysis of organizational change and the way of how organizations must be face the change in order to assimilate it in a proper manner. Organizational change could be understood as a constant and multi perspective strategic process of adoption and adaptation and, in this sense, the assimilation of change relies on how organizations manage these two processes (adoption and adaptation). The conceptualization of change as a constant process implies that organizations continuously face it, and as a consequence, organizations need to understand the nature of this process in order to face it properly. The process approach allows to study the causes and consequences of organizational change without separate it from its constituent elements, in other words, the process approach allows to study an event as a whole without separate it from its relations with other elements

Numerical and experimental investigation of a vertical LiBr falling film absorber considering wave regimes and in presence of mist flow

The absorber represents the most critical component in absorption systems and one of the key issues. In this component complex heat and mass transfer phenomena during the absorption process takes place simultaneously. For this reason the development of mathematical models validated against experimental data always constitutes useful tools for the design and improvement of falling film absorbers. A testing device has been designed and built to reproduce absorption phenomena in vertical LiBr-H2O falling film absorbers with the primary objective to obtain experimental data. On the other hand, a mathematical model of falling film absorption of H2O vapour in LiBr aqueous solutions has been implemented. Wave regime is considered by including and solving the Free Surface Deflection Equation. The numerical results are validated using the experimental data. During the development of this work, the authors have paid careful attention to the verification of experimental data. Such verification consists of performing energy and mass balances in the fluid film side. Important discrepancies were found in our experimental data. Therefore, an extensive study was carried out in order to find the source of such errors. The conclusion is that there is a drag of LiBr solution in the water vapour which increases with the Re number. This mist flow cannot be measured experimentally, but can be evaluated in an indirect way. The mathematical models have been adapted in order to consider the influence of mist flow. On the other hand, in the literature there are not many experimental works related to falling film absorbers which expose enough information to verify the reliability of their experimental data.Peer ReviewedPostprint (author's final draft

Confiabilidade e validade da escala de avaliação de relacionamento em mulheres porto-riquenhas

The objective of this study is to examine the reliability and validity of the Spanish version of the Relationship Assessment Scale (RAS) in a sample of Puerto Rican women. Relationship satisfaction can be defined as the global position towards partnered love relationships and the actual couple. The sample consisted of 1,009 women whom were involved in some type of couple relationship including marriage or a cohabiting relationship. The confirmatory factor analysis was used to examine the data, as well as item discrimination analysis and internal consistency reliability. The results obtained confirmed the one-dimensional structure of the RAS with an adequate internal consistency (Alpha = .91; Split-half = .93). The seven items of the scale complied with the discrimination criteria. The results demonstrated that the validity and reliability of the scale are appropriate, and therefore a useful and valid tool to measure the level of satisfaction of Puerto Rican women in amorous relationships.El objetivo de este estudio fue examinar la fiabilidad y validez de la versión en español del Relationship Assessment Scale (RAS) en una muestra de mujeres puertorriqueñas. La satisfacción con la relación se puede definir como la actitud global hacia la relación y la pareja. Colaboraron un total de 1,009 mujeres que se encontraban en algún tipo de relación de convivencia con su pareja (matrimonio o unión libre). Los datos se analizaron mediante análisis factorial confirmatorio, análisis de discriminación de ítems y análisis de consistencia interna. Los resultados confirmaron la estructura unidimensional del RAS con una consistencia interna adecuada (Alfa = .91; División en mitades = .93). Los siete ítems de la escala cumplieron con los criterios de discriminación. Los resultados muestran que la validez y confiabilidad de la escala son apropiadas. Se concluye que es una medida útil y válida para medir satisfacción en la relación en mujeres puertorriqueñas.O objetivo deste estudo é examinar a confiabilidade e validade da versão em espanhol da escala de avaliação de relacionamento em uma amostra composta por mulheres porto-riquenhas. A satisfação pode ser entendida como a postura global em relação aos relacionamentos amorosos em parceria e os que correspondem a um casal conformado. A amostra foi composta por 1009 mulheres as quais estiveram envolvidas em algum tipo de relacionamento de casal incluindo matrimônio ou uma relação de convivência. A análise fatorial confirmatória foi usada para avaliar os dados, assim como uma análise de discriminação de itens e confiabilidade da consistência interna. Os resultados obtidos confirmaram a estrutura unidimensional da escala de avaliação de relacionamento com consistência interna adequada (Alpha = .91; Split-half = .93). Os sete itens da escala atenderam aos critérios de discriminação. Os resultados demonstraram que a validade e a confiabilidade da escala são adequadas e, portanto, é uma ferramenta útil e válida para medir o nível de satisfação das mulheres porto-riquenhas em relacionamentos amorosos

Multirobot heterogeneous control considering secondary objectives

Cooperative robotics has considered tasks that are executed frequently, maintaining the shape and orientation of robotic systems when they fulfill a common objective, without taking advantage of the redundancy that the robotic group could present. This paper presents a proposal for controlling a group of terrestrial robots with heterogeneous characteristics, considering primary and secondary tasks thus that the group complies with the following of a path while modifying its shape and orientation at any time. The development of the proposal is achieved through the use of controllers based on linear algebra, propounding a low computational cost and high scalability algorithm. Likewise, the stability of the controller is analyzed to know the required features that have to be met by the control constants, that is, the correct values. Finally, experimental results are shown with di erent configurations and heterogeneous robots, where the graphics corroborate the expected operation of the proposalThis research was funded by Corporación Ecuatoriana para el Desarrollo de la Investigación y Academia–CEDI