Les cartes privades d’un historiador [Ressenya del llibre Epistolari de Jaume Vicens]

Ressenya del llibre Epistolari de Jaume Vicens. Els editors d’aquesta obra exposen un epistolari de la seva correspondència particular, amb el propòsit d’aportar dades sobre la història quotidiana que ajudin a perfilar la imatge de Vicens Vives

Vicens i Vives: entre la ciència històrica i la vocació política

Article sobre la trajectòria de Jaume Vicens Vives, emfatitzant els aspectes més vinculats amb la seva intervenció i influència en la vida social i política de la Catalunya de la segona dècada de l’època franquista. En aquest sentit, es destaca per una banda, el seu paper d'autor de llibres d'assaig que volien arribar a un públic ampli, mes enllà dels seus alumnes a les aules i seminaris universitaris; i, per l'altra, les seves vinculacions amb determinats sectors socials, especialment vinculats a la burgesia, amb la voluntat de contribuir als canvis econòmics i polítics del país, en uns moments que la política econòmica autàrquica del franquisme dels anys quaranta ja estava tocant sostre i els grups d’oposició catalanista al franquisme començaven a organitzar-se

Reglà, l´historiador que volia comprendre el món

Breu ressenya de la vida i obra de l’historiador empordanès Joan Reglà

Reglà, l´historiador que volia comprendre el món

Breu ressenya de la vida i obra de l’historiador empordanès Joan Reglà

Vicens i Vives: entre la ciència històrica i la vocació política

Article sobre la trajectòria de Jaume Vicens Vives, emfatitzant els aspectes més vinculats amb la seva intervenció i influència en la vida social i política de la Catalunya de la segona dècada de l’època franquista. En aquest sentit, es destaca per una banda, el seu paper d'autor de llibres d'assaig que volien arribar a un públic ampli, mes enllà dels seus alumnes a les aules i seminaris universitaris; i, per l'altra, les seves vinculacions amb determinats sectors socials, especialment vinculats a la burgesia, amb la voluntat de contribuir als canvis econòmics i polítics del país, en uns moments que la política econòmica autàrquica del franquisme dels anys quaranta ja estava tocant sostre i els grups d’oposició catalanista al franquisme començaven a organitzar-se

Vicens Vives, de nou recordat a la UdG

Crònica de les 'II Jornades Jaume Vicens Vives', celebrades els dies 14 i 15 de març de 2002 a la Facultat de Lletres i organitzades conjuntament pel Departament de Geografia, Història i Història de l'Art i el Centre d' Història Rural de l'ILCC, i dedicades a analitzar l'obra d'aquest historiador gironí. Tres varen ser els eixos principals d'aquestes jornades: les ponències, la presentació pública del fons que la família Vicens Rahola diposità a la UdG l'any 1988 i la taula rodona que aplegà destacats deixebles de Vicens

Correlation between species composition and soil properties in the pastures of Plana de Vic (Catalonia, Spain)

The correlation between the species composition of pasture communities and soil properties in Plana de Vic has been studied using two multivariate methods, Correspondence Analysis (CA) for the vegetation data and Principal Component Analysis (PCA) for the soil data. To analyse the pastures, we took 144 vegetation relevés (comprising 201 species) that have been classified into 10 phytocoenological communities elsewhere. Most of these communities are almost entirely built up by perennials, ranging from xerophilous, clearly Mediterranean, to mesophilous, related to medium-European pastures, but a few occurring in shallow soils are dominated by therophytes. As for the soil properties, we analysed texture, pH, depth, bulk density, organic matter, C/N ratio and the carbonates content of 25 samples, correspondingto representative relevés of the communities studied.

Reverse engineering in many-body quantum physics: Correspondence between many-body systems and effective single-particle equations

The mapping, exact or approximate, of a many-body problem onto an effective single-body problem is one of the most widely used conceptual and computational tools of physics. Here, we propose and investigate the inverse map of effective approximate single-particle equations onto the corresponding many-particle system. This approach allows us to understand which interacting system a given single-particle approximation is actually describing, and how far this is from the original physical many-body system. We illustrate the resulting reverse engineering process by means of the Kohn-Sham equations of density-functional theory. In this application, our procedure sheds light on the nonlocality of the density-potential mapping of density-functional theory, and on the self-interaction error inherent in approximate density functionals.

No association between the deficit syndrome in psychosis and summer birth in a Southern Hemisphere country (Correspondence)

This Article does not have an abstract.

Linear models of simple cells: Correspondence to real cell responses and space spanning properties

Despite their limitations, linear filter models continue to be used to simulate the receptive field properties of cortical simple cells. For theoreticians interested in large scale models of visual cortex, a family of self-similar filters represents a convenient way in which to characterise simple cells in one basic model. This paper reviews research on the suitability of such models, and goes on to advance biologically motivated reasons for adopting a particular group of models in preference to all others. In particular, the paper describes why the Gabor model, so often used in network simulations, should be dropped in favour of a Cauchy model, both on the grounds of frequency response and mutual filter orthogonality.

Improving attitude-behavior correspondence through exposure to normative support from a salient ingroup

Two experiments were conducted to test predictions derived from social identity/self-categorization theory concerning the role of group norms in attitude-behavior consistency. In Experiment 1, 160 students who could be classified as having a more or less certain target attitude were exposed to attitude congruent versus incongruent normative support from a relevant reference group (own university) under conditions of low versus high group salience. Experiment 2 was very similar in design and methodology (N=180), but a different correlate of attitude accessibility was used (an experimental manipulation of repeated expression), the target attitude was changed, and the reference group was gender. Across the 2 experiments there was consistent support for the hypothesis that participants would behave more in accordance with their attitudes when they received normative support for, rather than opposition to, their original attitude from a relevant reference group (i.e., their ingroup, not an outgroup). There was slightly weaker support for the second hypothesis that this effect would be stronger under high-than low-salience conditions. The third hypothesis (see Fazio, 1986), that attitude certainty and repeated expression of the attitude would strengthen attitude-behavior consistency, was well supported, as was the expectation that accessibility effects would be independent of reference group norm effects on attitude-behavior consistency.