40 resultados para Directory of Open Access Journals
Resumo:
This paper explores the possibility of using data from social bookmarking services to measure the use of information by academic researchers. Social bookmarking data can be used to augment participative methods (e.g. interviews and surveys) and other, non-participative methods (e.g. citation analysis and transaction logs) to measure the use of scholarly information. We use BibSonomy, a free resource-sharing system, as a case study. Results show that published journal articles are by far the most popular type of source bookmarked, followed by conference proceedings and books. Commercial journal publisher platforms are the most popular type of information resource bookmarked, followed by websites, records in databases and digital repositories. Usage of open access information resources is low in comparison with toll access journals. In the case of open access repositories, there is a marked preference for the use of subject-based repositories over institutional repositories. The results are consistent with those observed in related studies based on surveys and citation analysis, confirming the possible use of bookmarking data in studies of information behaviour in academic settings. The main advantages of using social bookmarking data are that is an unobtrusive approach, it captures the reading habits of researchers who are not necessarily authors, and data are readily available. The main limitation is that a significant amount of human resources is required in cleaning and standardizing the data.
Resumo:
Tríptic informatiu sobre la publicació de documents amb accés obert en el repositori institucional de la UOC, O2 (La Oberta en obert). Aquest informa sobre quins documents hi poden publicar els membres de la comunitat UOC, com fer-ho i els serveis de valor afegit per a tots els usuaris (web 2.0, subscripció per RSS o correu electrònic, exportació al gestor bibliogràfic Refworks, etc.) i per a la recerca (lligam amb l'aplicació d'avaluació de la recerca GIR i informació del factor d'impacte de la revista a SCOPUS, IN-RECS/IN-RECJ i MIAR).
Resumo:
The Open University of Catalonia (UOC: Universitat Oberta de Catalunya) is currently implementing its 2009-2014 Strategic Plan, which devotes an entire section to open educational resources. The working group on this topic is drafting a report that establishes the objectives to be met, analyses the current lay of the land and sets out the actions required to meet the objectives. This paper examines each of these three points.
Resumo:
This paper describes high-quality journals in Brazil and Spain, with an emphasis on the distribution models used. It presents the general characteristics (age, type of publisher, and theme) and analyzes the distribution model by studying the type of format (print or digital), the type of access (open access or subscription), and the technology platform used. The 549 journals analyzed (249 in Brazil and 300 in Spain) are included in the 2011 Web of Science (WoS) and Scopus databases. Data on each journal were collected directly from their websites between March and October 2012. Brazil has a fully open access distribution model (97%) in which few journals require payment by authors thanks to cultural, financial, operational, and technological support provided by public agencies. In Spain, open access journals account for 55% of the total and have also received support from public agencies, although to a lesser extent. These results show that there are systems support of open access in scientific journals other than the"author pays" model advocated by the Finch report for the United Kingdom.
Resumo:
MELIBEA és un directori i validador de polítiques en favor de l'accés obert a la producció científico-acadèmica. Com a directori, descriu les polítiques institucionals existents relacionades amb l'accés obert (AO) a la producció científica i acadèmica. Com a validador, les sotmet a una anàlisi qualitatiu i quantitatiu basat en el compliment d'un conjunt d'indicadors que reflecteixen les bases en què es fonamenta una política institucional. El validador indica una puntuació i un percentatge de compliment per a cada una de les polítiques analitzades. Això es realitza a partir dels valors assignats a certs indicadors i la seva ponderació en funció de la seva importància relativa. La suma dels valors ponderats de cadascun dels indicadors s'ajusta a una escala percentual i condueix al que hem anomenat "Percentatge validat d'accés obert", el càlcul del qual s'exposa en l'apartat de Metodologia. Els tipus d'institucions que s'analitzen són universitats, centres de recerca, agències finançadores i organitzacions governamentals.
Resumo:
L’existència d’una xarxa mundial de comunicacions ubiqua i barata que cada vegada més permet obtenir documents de manera fàcil i gratuïta requerirà una transformació de les pràctiques de la formació de col·leccions a les biblioteques universitàries. Això estarà impulsat per una sèrie d’avenços específics, que inclouen la digitalització de continguts; el desenvolupament de repositoris d’impresos; el desenvolupament de lectors de llibres electrònics i de l’edició mitjançant la impressió sota demanda; el creixement de l’accés obert; els reptes per establir estructures d’edició acadèmica; i el creixement de noves formes d’activitats acadèmiques basades en l’obertura i la productivitat social. Si les biblioteques universitàries volen tenir èxit, hauran de desmuntar les col·leccions impreses patrimonials; passar de la selecció de llibres ítem a ítem a la compra sota demanda i a les subscripcions; gestionar la transició cap a revistes d’accés obert; centrar-se en conservar ítems únics; i desenvolupar nous mecanismes per finançar una infraestructura nacional.
Resumo:
Frequently the choice of a library management program is conditioned by social, economic and/or political factors that result in the selection of a system that is not altogether suitable for the library’s needs, characteristics and functions. Open source software is quickly becoming a preferred solution, owing to the freedom to copy, modify and distribute it and the freedom from contracts, as well as for greater opportunities for interoperability with other applications. These new trends regarding open source software in libraries are also reflected in LIS studies, as evidenced by the different courses addressing automated programs, repositorymanagement, including the Linux/GNU operating system, among others. The combination of the needs of the centres and the new trends for open source software is the focus of a virtual laboratory for the use of open source software for library applications. It was the result of a project, whose aim was to make a useful contribution to the library community, that was carried out by a group of professors of the School of Library and Information Science of the University of Barcelona, together with a group of students, members of a Working Group on Open Source Software for Information Professionals, of the Professional Library Association of Catalonia.
Resumo:
In the simplest model of open inflation there are two inflaton fields decoupled from each other. One of them, the tunneling field, produces a first stage of inflation which prepares the ground for the nucleation of a highly symmetric bubble. The other, a free field, drives a second period of slow-roll inflation inside the bubble. However, the second field also evolves during the first stage of inflation, which to some extent breaks the needed symmetry. We show that this generates large supercurvature anisotropies which, together with the results of Tanaka and Sasaki, rule out this class of simple models (unless, of course, Omega0 is sufficiently close to 1). The problem does not arise in modified models where the second field does not evolve in the first stage of inflation.
Resumo:
Comunicació presentada a: II Setmana Internacional de l'Accés Obert a la Universitat de Barcelona. Universitat de Barcelona, del 18 al 22 d'octubre de 2010