El camino hacia la integración de sistemas de gestión de la información científica : el TCD (Trinity College Dublin) como estudio de caso. CERIF y euroCRIS

Pablo de Castro, Director de GrandIR, describió la visión que el Grupo euroCRIS tiene de la infraestructura integrada de gestión de la información científica, compuesta por un sistema CRIS institucional, un repositorio de publicaciones y un repositorio de datos y software, y presentó el modelo de infraestructura integrada del Trinity College Dublin (TCD) como estudio de caso internacional. El sistema CRIS del TCD (TCD Research Support System o RSS), desde su primera versión en 2002, está basado en el estándar CERIF, un modelo de descripción de la actividad científica que está adquiriendo una progresiva relevancia como base de los sistemas CRIS en Europa, particularmente en el Reino Unido. Se citaron en la presentación los ensayos para incorporar CERIF al modelo de datos del software ePrints de repositorios, habilitándolo así para soportar parte de las tareas de recolección de información que realiza un CRIS, y la progresiva cobertura de CERIF a ámbitos tales como la gestión de datos de investigación.

Technical Note: Dissolved organic matter fluorescence a finite mixture approach to deconvolve excitation-emission matrices

The analysis of the shape of excitation-emission matrices (EEMs) is a relevant tool for exploring the origin, transport and fate of dissolved organic matter (DOM) in aquatic ecosystems. Within this context, the decomposition of EEMs is acquiring a notable relevance. A simple mathematical algorithm that automatically deconvolves individual EEMs is described, creating new possibilities for the comparison of DOM fluorescence properties and EEMs that are very different from each other. A mixture model approach is adopted to decompose complex surfaces into sub-peaks. The laplacian operator and the Nelder-Mead optimisation algorithm are implemented to individuate and automatically locate potential peaks in the EEM landscape. The EEMs of a simple artificial mixture of fluorophores and DOM samples collected in a Mediterranean river are used to describe the model application and to illustrate a strategy that optimises the search for the optimal output.

Technical Progress, Sorting, and Early Retirement

[cat] El progrés tecnològic afecta a la jubilació anticipada a través de dues forces oposades. Per una banda, augmenta el salari real i, per tant, crea incentius per posposar la jubilació. Per altra banda, causa l’erosió de les habilitats dels treballadors, el qual augmenta la probabilitat de jubilació anticipada. En aquest article reexaminem l’efecte del progrés tecnològic en la jubilació anticipada tenint en compte que, al principi de la vida laboral, els individus es distribueixen en diferents sectors segons la seva habilitat. Obtenim dos resultats principals: 1) per petits (grans) canvis tecnològics, l’efecte salari (erosió) domina, i 2) els individus més capaços resisteixen millor l’efecte erosió.

Technical Progress, Sorting, and Early Retirement

[cat] El progrés tecnològic afecta a la jubilació anticipada a través de dues forces oposades. Per una banda, augmenta el salari real i, per tant, crea incentius per posposar la jubilació. Per altra banda, causa l’erosió de les habilitats dels treballadors, el qual augmenta la probabilitat de jubilació anticipada. En aquest article reexaminem l’efecte del progrés tecnològic en la jubilació anticipada tenint en compte que, al principi de la vida laboral, els individus es distribueixen en diferents sectors segons la seva habilitat. Obtenim dos resultats principals: 1) per petits (grans) canvis tecnològics, l’efecte salari (erosió) domina, i 2) els individus més capaços resisteixen millor l’efecte erosió.

Dimensional structure of the Brief Symptom Inventory with Spanish College students.

The Brief Symptom Inventory is designed to assess symptoms of psychological disorders in adolescents and adults. The dimensional structure of the inventory, using exploratory and confirmatory factor analyses, was examined with a cross-sectional design in a Spanish sample of college students (N = 1,033, aged between 18 and 30 years old). Two hypotheses were tested: the original distribution of the items in nine factors, and the unidimensionality of the inventory. According to the results, a nine-factor structure seemed to be confirmed, although the strong intercorrelations found among the subscales indicated that these were measuring closely related constructs. The importance of cultural influences when assessing psychological symptoms and the need to develop national and sex norms for instruments that assess psychopathology, are also discussed.

Experiencia interdisciplinar de coevaluación: la percepción de los estudiantes en la Universidad de Girona : percepciones sobre la coevaluación

Peer-assessment provides multiple benefits to students during their learning process. The aim of this study is to examine students’ perception regarding peer-assessment. Surveys have been conducted before and after the peer-assessment process to students from five different subjects taught at the University of Girona. The results suggest that students have a positive predisposition respect to this methodology, both before and after being implemented. However, we found slight differences between the students of the technical field compared to those in education science

Productivity, Technical eficiency and internationalisation of the Spanish chemical sector

relationship between productivity and international position of Spanish chemical firms in the period 2005-2011. The goal is to determine whether companies that follow and international strategy, either with exports or by investment in foreign countries obtain greater productivity growth than these that do not operate in global market. For this purpose a panel data set with microdata has been created. A preliminary analysis of the evolution of productivity growth in the sector is carried out. The measurement of Total Factor Productivity is performed. With the estimated TFP we analyze the differentials in productivity growth, comparing the effects of export and investment behavior with non-international firms.