12 resultados para 7140-326
em Consorci de Serveis Universitaris de Catalunya (CSUC), Spain
Resumo:
La Biblioteca de la Universitat Oberta de Catalunya va començar a funcionar durant el curs 1995-1996. Des d'un bon principi, la singular concepció d'aquesta nova universitat a distància i la manca d'experiències similars en les que basar el desenvolupament dels seus serveis bibliotecaris va fer palesa la necessitat de donar una especial atenció al seguiment i l'aplicació de les noves tecnologies emergents. En els dos anys transcorreguts aquest plantejament s'ha vist consolidat i, en l'actualitat, està incorporat als objectius i a les línies d'actuació de la Biblioteca.
Resumo:
In this paper we view bargaining and cooperation as an interaction superimposed on a strategic form game. A multistage bargaining procedure for N players, the proposer commitment procedure, is presented. It is inspired by Nash s two-player variable-threat model; a key feature is the commitment to threats. We establish links to classical cooperative game theory solutions, such as the Shapley value in the transferable utility case. However, we show that even in standard pure exchange economies the traditional coalitional function may not be adequate when utilities are not transferable.
Resumo:
En un estudio osteológico de los restos humanos de la Edad del Bronce de Cataluña se ha puesto de manifiesto la existencia, en esta época, de un suave y gradual proceso de difusión racial a lo largo del litoral noroeste del Mediterráneo, así como las influencias que éste ha tenido en el área catalana, donde aparece un elemento foráneo, de origen centroeuropeo, minoritario, localizado fundamentalmente en Solsona y de modo particular en tres yacimientos muy cercanos entre sí: los megalitos de El Collet, Clara y la cueva sepulcral de AigüesVives (fig. 1). Este aporte foráneo, relacionado sin duda con las prospecciones de metal y objetos de origen transpirenaico como la cerámica de apéndice de botón, aparece asentado en la zona reutilizando los sepulcros y mezclado con la población indígena, según muestran las abundantes formas de tránsito (Turbón, 1977, págs. 132, 340, 418 Y 326).
Resumo:
This paper contains the conclusion of a mycological survey of western Catalonia. The first part of the results was published in Acta Bot. Barc. 45 (Homenatge a Oriol de Bolòs): 57-89. The present part covers the last two groups of Basidiomycota: the agarics (326 species) and the gasteromycetes (44 species). The data regarding the surveyed area, collection localities, abbreviations used in the information on ecology, collectors and identifiers are found in the mentioned first part, which contains records of 37 species of Myxomycota, 5 of Zygomycota, 101 of mitosporic fungi, 8 of Teliomycetes, 1 of Ustomycetes, 16 of Phragmobasidiomycetes and 92 of Aphyllophorales. Together with the first part, the results of our survey are a useful contribution to an improved understanding of the fungal component of plant communities of the dry, warm lowlands of the western Mediterranean region, and highlight the remarkable reproductive activity of the fungi observed during late Autumn and Winter, in the studied area.
Resumo:
The fungi of occidental Catalonia after recent prospections I. This work intends to collect the mycological data gathered during the last four years as a result of the project "Fungal biodiversity of Catalonia", in the western and southern, mainly lowland areas of this country. The climate is mainly dry (400-600 mm/year) and warm. The survey, that covers 160 localities, has enabled the identification of 37 species of Myxomycota, 5 of Zygomycora, 159 of Ascomyctra, 101 mitosporic fungi, 8 Teliomycetes, 1 Ustomycetes, 16 Phragmobasidiomycetes and 92 Apliyllopllorates, that are included in this paper. Because of space limitations, the remaining 326 agarics and 44 Gasteromycetes will be published in the next number of this journal. This work is a contribution to a best understanding of the fungal flora, chorology, ecology and phenology of the West-Mediterranean dry lowlands.
Resumo:
El treball es centra principalment en el disseny de la instal·lació geotèrmica exterior i del terra radiant de l'interior. El disseny es basa en aconseguir el confort de calefacció i s'aprofita el fet de que s'utilitza un sistema reversible per aportar el màxim confort durant l'èpocade refrigeració. Es realitza un estudi de les possibles alternatives per a la instal·lació, també s'observaran els aparells i accessoris escollits per a la implantació de la instal·lació.
Resumo:
Se presentan diversas cuestiones de la relación entre los modelos helénicos de las colonias de Emporion y Rhode y las costumbres indígenas evidenciadas en los yacimientos ibéricos de su entorno. Los cultos de Artemis y Apolo como dioses protectores de la emporía arcaica de los foceos, el urbanismo de Rhode en el siglo III a.C., los cultos emporitanos, la interpretación del yacimiento de Pontós, la mezcla de cultos griegos y celtas en Ullastret y Pontós y un cálato excepcional en un campo de silos al pie de S. Julià, se estudian como evidencias de esta relación. En el siglo II a.C., Roma implantará un nuevo orden político y económico del que Emporion será la gran beneficiada.
Resumo:
Background: At present, it is complicated to use screening trials to determine the optimal age intervals and periodicities of breast cancer early detection. Mathematical models are an alternative that has been widely used. The aim of this study was to estimate the effect of different breast cancer early detection strategies in Catalonia (Spain), in terms of breast cancer mortality reduction (MR) and years of life gained (YLG), using the stochastic models developed by Lee and Zelen (LZ). Methods: We used the LZ model to estimate the cumulative probability of death for a cohort exposed to different screening strategies after T years of follow-up. We also obtained the cumulative probability of death for a cohort with no screening. These probabilities were used to estimate the possible breast cancer MR and YLG by age, period and cohort of birth. The inputs of the model were: incidence of, mortality from and survival after breast cancer, mortality from other causes, distribution of breast cancer stages at diagnosis and sensitivity of mammography. The outputs were relative breast cancer MR and YLG. Results: Relative breast cancer MR varied from 20% for biennial exams in the 50 to 69 age interval to 30% for annual exams in the 40 to 74 age interval. When strategies differ in periodicity but not in the age interval of exams, biennial screening achieved almost 80% of the annual screening MR. In contrast to MR, the effect on YLG of extending screening from 69 to 74 years of age was smaller than the effect of extending the screening from 50 to 45 or 40 years. Conclusion: In this study we have obtained a measure of the effect of breast cancer screening in terms of mortality and years of life gained. The Lee and Zelen mathematical models have been very useful for assessing the impact of different modalities of early detection on MR and YLG in Catalonia (Spain).
Resumo:
En el artículo se expone un estudio comparativo entre escolares de Cataluña y del Aragón catalanófono. Considerando que nos encontramos ante contextos caracterizados por una valoración muy dispar de las lenguas en presencia (catalán y castellano), el objetivo de la investigación es contrastar las actitudes ante dichas lenguas por parte de cada uno de estos grupos. El análisis de los resultados destacó que mientras los escolares catalanes tendían a primar la lengua catalana, los escolares del Aragón catalanófono mostraban una tendencia a valorar más posi[ivamente la lengua casteUana. En cuanto a las variables que podían explicar tales actitudes, la condición lingiiística familiar aparecía como detetminante. Además, en la justificación de los resultados se consideró el sentido de amenaza con que cada lengua puede ser vivida por parte de los grupos lingiiísticos.
Resumo:
The objective of research was to analyse the potential of Normalized Difference Vegetation Index (NDVI) maps from satellite images, yield maps and grapevine fertility and load variables to delineate zones with different wine grape properties for selective harvesting. Two vineyard blocks located in NE Spain (Cabernet Sauvignon and Syrah) were analysed. The NDVI was computed from a Quickbird-2 multi-spectral image at veraison (July 2005). Yield data was acquired by means of a yield monitor during September 2005. Other variables, such as the number of buds, number of shoots, number of wine grape clusters and weight of 100 berries were sampled in a 10 rows × 5 vines pattern and used as input variables, in combination with the NDVI, to define the clusters as alternative to yield maps. Two days prior to the harvesting, grape samples were taken. The analysed variables were probable alcoholic degree, pH of the juice, total acidity, total phenolics, colour, anthocyanins and tannins. The input variables, alone or in combination, were clustered (2 and 3 Clusters) by using the ISODATA algorithm, and an analysis of variance and a multiple rang test were performed. The results show that the zones derived from the NDVI maps are more effective to differentiate grape maturity and quality variables than the zones derived from the yield maps. The inclusion of other grapevine fertility and load variables did not improve the results.
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This study explored ethnic identity among 662 students (326 mestizos and 336 indigenous) from the Intercultural University of Chiapas (IUCh). Scholars suggest that ethnicity is more salient for ethnic minority adolescents than for adolescents who are members of the ethnic majority. The aims for this study were: 1) to determine the structure and validity of ethnic identity as measured by the Multigroup Ethnic Identity Measure in a sample of majority and minority ethnic groups from Intercultural University in Chiapas, and 2) to examine the variability of ethnic identity across ethnic groups. Specifically, it was hypothesized that the Multigroup Ethnic Identity Measure would show two factors, and that ethnic groups would differ on ethnic identity. The results supported the hypotheses
Resumo:
Este trabajo pretende transmitir algunos resultados y reflexiones de una investigación realizada por un equipo de diversas universidades acerca de las capacidades institucionales de las euroregiones en la Península Ibérica. El concepto de capacidad institucional es clave para valorar el grado de eficiencia de estas entidades que hoy se dispersan por todas las fronteras europeas, si bien en su mayoría tienen un origen reciente y se encuentran en fase de desarrollo. Se presentan los resultados de las entrevistas a un conjunto de actores de una serie de estructuras ubicadas en la frontera pirenaica oriental y occidental, respectivamente. Más allá de factores externos (legales y administrativos, políticos, financieros) se han detectado otras problemáticas derivadas del análisis de las formas de gobernanza y de las capacidades institucionales. En cuanto al futuro, se sugiere avanzar en la europeización de las políticas fronterizas, y una revisión urgente de las AECT