Evaluación de dosis de radiación producida por una pérdida de refrigerante en reactor nuclear.

EN]This is a document done to try to see the effect of a nuclear power plant accident. In particular, it studies what would be the radiation doses delivered to the people in the close areas around the power plant of Garoña, if it had suffered from a loss of coolant accident during its normal functioning.

Kapital sozialaren garrantzia familia enpresetan

[EU]Kapital sozialaren ikuspegian oinarriturik eta kotizatu gabeko 172 familiaenpresa espainiarren lagin bat erabiliz, barne hartuz enpresan kudeaketa-funtzioak betetzen dituzten pertsona elkarrizketatu bi eta guztira 344 galdetegi izanik, uste dugu kapital sozial familiarrak bitartekari gisa balio duela kapital sozial ez-familiarraren eta enpresaren jardueraren artean. Gainera, gure emaitzek kapital sozialaren ulermena familia-enpresatik haratago hedatzen dute, erakundeek talde sozial nagusi baten presentzia ezaugarritzat duten testuinguru batean.

Sobre el origen geográfico de la familia de Braulio, obispo de Zaragoza

Edición a cargo de Agustín Ramos Guerreira

Familia-enpresen egoera Euskal Herrian

Familia-enpresen gaur egungo eta gaur egunera arte merkatuan izandako garrantzia aztertuko da; bai mundu mailan, baita Euskal Herri mailan ere. Ondoren, enpresa mota hauen ezaugarriak eta autore desberdinen araberako definizioak aztertuko dira.

Familia eta eskola testuinguruen eragina haurren errendimendu akademikoan

[eus] Egun, adin txikikoenekin batera eskolako testuinguruan barneratzean, irakasleek familiak haurren garapen psikologikoan eta pertsonalean zuzenean eragiten duela hautematen dute. Izan ere, seme alaben hezkuntzan familiak duen hezteko estiloak eta inplikazio mailak, seme alabek bizitzak eta hezkuntza akademikoak planteatzen dizkieten erronkei aurre egiteko dituzten jarreretan eragingo du, euren errendimendu akademikoa baldintzatuz. Horren ondorioz, lan honetan, bilaketa bibliografiko baten bidez, ikasleen ikaskuntza prozesua, garapen pertsonala eta psikologikoa ahalik eta modu hoberenean estimulatzea ziurtatuko dituzten aspektuak ikertzen dira. Horrela, hauen errendimendu akademikoa eta ongizate psikologikoa bide positibo batetik bideratu eta ikasleei, irakasleei eta familiei erantzuteko bideak ireki nahi direlarik.

Familia y Escuela. Encuesta de participación en un centro concertado de clase media

[es] El presente trabajo se ha realizado con el propósito de conocer mejor una de las realidades del ámbito educativo: la participación de las familias en los centros escolares. Para ello, nos hemos centrado en las relaciones de comunicación entre la familia y la escuela, teniendo en cuenta a ambos colectivos como contextos de socialización fundamentales en el desarrollo del niño. Así, partiendo de un marco teórico basado en la conceptualización de la participación a partir de diferentes aproximaciones teóricas y del marco jurídico que regula este ámbito a nivel estatal, hemos realizado un trabajo de campo en un centro concertado de clase media que busca sondear las formas y la práctica de participación de las familias a fin de obtener un diagnóstico sobre los niveles de participación existentes hoy en día en este tipo de centros.

New Nuclear SNP Markers Unravel the Genetic Structure and Effective Population Size of Albacore Tuna (Thunnus alalunga)

In the present study we have investigated the population genetic structure of albacore (Thunnus alalunga, Bonnaterre 1788) and assessed the loss of genetic diversity, likely due to overfishing, of albacore population in the North Atlantic Ocean. For this purpose, 1,331 individuals from 26 worldwide locations were analyzed by genotyping 75 novel nuclear SNPs. Our results indicated the existence of four genetically homogeneous populations delimited within the Mediterranean Sea, the Atlantic Ocean, the Indian Ocean and the Pacific Ocean. Current definition of stocks allows the sustainable management of albacore since no stock includes more than one genetic entity. In addition, short-and long-term effective population sizes were estimated for the North Atlantic Ocean albacore population, and results showed no historical decline for this population. Therefore, the genetic diversity and, consequently, the adaptive potential of this population have not been significantly affected by overfishing.

Low Effort L-i Nuclear Fusion Plasma Control Using Model Predictive Control Laws

One of the main problems of fusion energy is to achieve longer pulse duration by avoiding the premature reaction decay due to plasma instabilities. The control of the plasma inductance arises as an essential tool for the successful operation of tokamak fusion reactors in order to overcome stability issues as well as the new challenges specific to advanced scenarios operation. In this sense, given that advanced tokamaks will suffer from limited power available from noninductive current drive actuators, the transformer primary coil could assist in reducing the power requirements of the noninductive current drive sources needed for current profile control. Therefore, tokamak operation may benefit from advanced control laws beyond the traditionally used PID schemes by reducing instabilities while guaranteeing the tokamak integrity. In this paper, a novel model predictive control (MPC) scheme has been developed and successfully employed to optimize both current and internal inductance of the plasma, which influences the L-H transition timing, the density peaking, and pedestal pressure. Results show that the internal inductance and current profiles can be adequately controlled while maintaining the minimal control action required in tokamak operation.