El Banco de España elige ALEPH y la British Library ILS, ambos productos de ExLibris

Sección: Noticias. Noticias externasEl Banco de España ha sustituido durante 2003 el programa de gestión de bibliotecas DOBIS/LIBIS que usaba hasta el momento por el sistema ALEPH 500. Es el quinto banco central europeo que opta por Aleph (otros son los bancos centrales de Holanda, Italia y Luxemburgo).N

Korkunç bir hatıra

Ahmet Vedat'ın Şehbal'de tefrika edilen Korkunç Bir Hatıra adlı romanıTefrikanın devamına rastlanmamış, tefrika yarım kalmıştır

Shape of stars and optical quality of the human eye

Contiene: fórmulas y 7 ilustraciones.Star images are entoptic phenomena that most people can perceive when looking at bright point sources in darkness. Diffraction and/or ocular aberrations seem to be a plausible cause for the star patterns, but to our knowledge no objective recordings of retinal optical images showing these characteristic patterns have been reported before. We have projected a small Gaussian spot of light onto the retina and registered the aerial image formed externally through a fully dilated pupil $one-and-a-half-pass method [J. Opt. Soc. Am. A 12, 2385 (1995)]%. We have verified that, for fully dilated pupils (.9 mm), the blur caused by the finite size of the Gaussian spot is small. Consequently, these aerial images are a reasonably good approximation of the (inverted) optical point-spread function of the eye. These objectively recorded images displayed the distinctive radiating patterns of star images, which were compared with subjective patterns sketched out by the same observers. A strikingly close match was found between the objective and the subjective patterns of the same eyes. In addition, we computed the diffraction patterns produced by a simple schematic model of the suture lines of the anterior lens surface, also obtaining star-shaped images. These results support the commonly accepted hypothesis of a purely optical origin of subjective star images. © 1997 Optical Society of America [S0740-3232(97)00402-X].Research supported by the Comisión Interministerial de Ciencia y Tecnología (Spain) under grant TIC94-0849. Our special thanks go to Francisco Romero, Maurice Rynders, and Ulrike Fempel for acting as observers and to Susana Marcos for help with computer simulations. - This paper was published in Journal of the Optical Society of America A, and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/abstract.cfm?URI=josaa-14-2-353. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.Peer reviewe

Клиент-серверное приложение для извлечения гидрометеорологических данных

This article describes a Web-based application for automated extracting of unstructured hydrometeorological data from sites on the Internet that provide such information. The software makes it easier to receive weather reports, including encoded in the KN-01, as well as to work with them

Innovation networks: problems and prospects (Russian case study)

The topologies of innovation network development in Russia are described in this article. Study was conductedin one of the Russian industrial leader JSC Academician M.F. Reshetnev "Information Satellite Systems". Theoretical approaches to the network nature and classification are revealed herein. Some characteristics of innovation network as relatedness, centrality, and intensity were discussed in the article."Information Satellite Systems" has a lot of branch and subsidiaries which form the innovation network of this enterprise. Research methodology consists of head of companies' survey and interview and analyses of open information of firm functioning. Results of research show the vertical hierarchaloriented innovation network with a low-degree of relatedness. Also anchor company ISS has a distinct network landscape with a focus on large vertically integrated, with a low degree of network connectivity, with the unexpressed (weak) links, where a key type of partnership is scientific collaboration with the base (dependent) subsidiary companies, universities and research institutes