La constitución y la protección del patrimonio eclesiástico en la legislación de Constancio II (337-361)

A partir de Constantino I, cuando el cristianismo fue reconocido y apoyado por los emperadores romanos, se dotó a la Iglesia de terrenos destinados a su mantenimiento. En poco tiempo, este patrimonio fundiario se acrecentó notablemente gracias a las donaciones de privados y a que, en la medida en que la situación lo permitió, los obispos se apropiaron de las dotaciones de los templos paganos de sus comunidades. Por otro lado, este aumento patrimonial suscitó problemas legales relacionados con los impuestos que debían pagarse por estas tierras.

Sharp weighted bounds for fractional integral operators

The relationship between the operator norms of fractional integral operators acting on weighted Lebesgue spaces and the constant of the weights is investigated. Sharp bounds are obtained for both the fractional integral operators and the associated fractional maximal functions. As an application improved Sobolev inequalities are obtained. Some of the techniques used include a sharp off-diagonal version of the extrapolation theorem of Rubio de Francia and characterizations of two-weight norm inequalities.

On the joint production of research and training

Universities and research institutions have the responsibility to produce science and to provide training to new generations of researchers. In this paper, we propose a model to analyze the determinants of a senior scientist's decisions about allocating time between these tasks. The results of this decision depend upon the characteristics of the research project, the senior scientist's concern for training and the expected innate ability of the junior scientist involved. We analyze the role that a regulator can play in defining both the value of scientific projects and the future population of independent scientists.

Factores pronósticos de mejora al alta en pacientes de la unidad de convalecencia de la Clínica Figarola.

Objectiu: Estudiar la millora a l’alta en pacients ingressats a la unitat de convalescència de la Clínica Figarola durant l’any 2009 i els factors predictius de retorn a domicili. Mètode: Estudio retrospectiu de 337 pacients. Es van recollir: edat, sexe, comorbiditat, diagnòstic, destinació, i les escales de Barthel, Blessed, Delirium, Gijón, Mini-mental, Yesavage, Tinetti en marxa i equilibrí. Resultats: 208 de sexe femení (61.72%), 191 pacients (56.68%) amb comorbiditat, 93 (27.60%) amb diagnòstic de fractures, 216 (64.09%) van ser dona de alta al seu domicili o residència. Totes les variables geriàtriques estudiades s’ha associen significativament amb el retorn a domicili. Conclusions: Els factors predictius de l’alta a domicili van ser les escales de Barthel, Blessed, Delirium, Mini-mental, Yesavage, Tinetti en marxa i equilibrí.

Analizador Gráfico de Red (sniffer) enentorno GNU

Es pretén desenvolupar una eina orientada principalment, que no exclusivament, a finalitats educatives, el propòsit general és mostrar a l'usuari informació detallada de cadascun dels protocols capturats per l'aplicació, ajudant a comprendre que s'amaga darrere de cadascun d'ells.

Embodied technical change and the fluctuations of wages and unemployment

The paper shows that a matching model where technological change is partially embodied in the job match is successful in explaining the variability of unemployment and vacancies. If we incorporate long-term wage contracts into the model, it also explains a number of stylized facts on the dynamics of real wages, which have been found in the empirical labor literature.

Altruism, equity and reciprocity in a gift-exchange experiment: An encompassing approach

Considerable experimental evidence suggests that non-pecuniary motivesmust be addressed when modeling behavior in economic contexts. Recentmodels of non-pecuniary motives can be classified as either altruism-based, equity-based, or reciprocity-based. We estimate and compareleading approaches in these categories, using experimental data. Wethen offer a flexible approach that nests the above three approaches,thereby allowing for nested hypothesis testing and for determiningthe relative strength of each of the competing theories. In addition,the encompassing approach provides a functional form for utility in different settings without the restrictive nature of the approaches nested within it. Using this flexible form for nested tests, we findthat intentional reciprocity, distributive concerns, and altruisticconsiderations all play a significant role in players' decisions.

Going with the consumer towards the social Web environment : a review of extant knowledge

The social Web environment cannot be explained without taking into account the use made by consumers of the web technologies in the field of e-commerce. Starting with a systematic background of the growing body of research on marketing and consumer behaviour on the Web; this article presents a critical review of the main contributions on this theme, integrating also the research field of consumer behaviour in the social Web environment. It concludes with some managerial guidelines for successful use of the social Web in the commercial activities and in the establishment of fruitful relationships between the consumers and the brand.

Hablando de emociones fingidas: la relación entre la sintaxis de la complementación y la comprensión de la simulación emocional

Este trabajo se centra en investigar la relación entre el uso de la sintaxis de la complementación y la capacidad infantil para comprender la simulación emocional. Un total de 337 niñas y niños de cuatro a doce años realizaron cuatro tareas en las cuales los personajes fingían una emoción, para jugar o para engañar a un observador. Se preguntó a los participantes por la emoción externa e interna del protagonista, y también por las creen-cias del observador, solicitando la justificación de sus respuestas. Se analiza-ron tanto la capacidad para comprender las emociones fingidas como el uso de distintos tipos de oraciones completivas en las justificaciones de las res-puestas. Los resultados mostraron una contingencia significativa entre la comprensión de la simulación emocional y la utilización de oraciones com-pletivas con verbos cognitivos o comunicativos, aunque el uso de este tipo de oraciones no se mostró necesario ni suficiente para esta comprensión. Finalmente, se discute el alcance de la relación entre la comprensión de la simulación emocional y la utilización de oraciones completivas con verbos comunicativos o cognitivos

La situación de la consultoría de calidad especializada en ISO 9000 en España

El artículo se basa en un estudio empírico del sector de consultoría especializada en ISO 9000 en Cataluña. En primer lugar, se realiza una segmentación de las empresas que acuden a un consultor para obtener asesoramiento en el proceso de implantación de la norma. De esta forma se observa el comportamiento diferenciado de tres tipologías de empresas. Cada tipología persigue distintos intereses en el proyecto de consultoría que les llevará a la certificación. Se analiza también el trabajo del consultor: en primer lugar se mide el grado de satisfacción del servicio prestado. Más adelante, se buscan las dimensiones que definen la calidad en este tipo de servicio. Finalmente, se concluye con listado de puntos en los que las consultorías deben mejorar para aumentar el grado de satisfacción de sus clientes.

Analysis of vineyard differential management zones and relation to vine development, grape maturity and quality

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.

Statistical modelling of CSP solving algorithms performance

The goal of this work is to try to create a statistical model, based only on easily computable parameters from the CSP problem to predict runtime behaviour of the solving algorithms, and let us choose the best algorithm to solve the problem. Although it seems that the obvious choice should be MAC, experimental results obtained so far show, that with big numbers of variables, other algorithms perfom much better, specially for hard problems in the transition phase.

Els vestits, que divertits!

Un estudi del que s'exposa al Museu Tèxtil i d'Indumentària de Barcelona, ens pot aportar informació sobre història de la cultura igual com ens en pot proporcionar una visita al Museu d'Història de la ciutat o d'altres. És a dir, la indumentària, tal com passa amb tot un munt d'objectes, ens dóna informació sobre la cultura que en fa ús.

Implementació d'una eina de metacerca : MetaLib i SFX

L'article presenta les característiques i funcionalitats principals de les eines MetaLib i SFX, programaris per a la gestió i accés als recursos electrònics. S'analitzen els programaris citant els diferents tipus de funcionalitats, i la gestió i el manteniment. El procés s'emmarca en l'experiència de la Universitat Oberta de Catalunya, membre del CBUC, i se n'expliquen la configuració, els reptes i les dificultats que es van produir durant la implementació dels sistemes.

Characterisation of COPD heterogeneity in the ECLIPSE cohort

Background Chronic obstructive pulmonary disease (COPD) is a complex condition with pulmonary and extra-pulmonary manifestations. This study describes the heterogeneity of COPD in a large and well characterised and controlled COPD cohort (ECLIPSE). Methods We studied 2164 clinically stable COPD patients, 337 smokers with normal lung function and 245 never smokers. In these individuals, we measured clinical parameters, nutritional status, spirometry, exercise tolerance, and amount of emphysema by computed tomography. Results COPD patients were slightly older than controls and had more pack years of smoking than smokers with normal lung function. Co-morbidities were more prevalent in COPD patients than in controls, and occurred to the same extent irrespective of the GOLD stage. The severity of airflow limitation in COPD patients was poorly related to the degree of breathlessness, health status, presence of co-morbidity, exercise capacity and number of exacerbations reported in the year before the study. The distribution of these variables within each GOLD stage was wide. Even in subjects with severe airflow obstruction, a substantial proportion did not report symptoms, exacerbations or exercise limitation. The amount of emphysema increased with GOLD severity. The prevalence of bronchiectasis was low (4%) but also increased with GOLD stage. Some gender differences were also identified. Conclusions The clinical manifestations of COPD are highly variable and the degree of airflow limitation does not capture the heterogeneity of the disease.