We present an available and low cost technique for the production of binary-phase diffractive optical elements designed by digital methods. We produce binary-amplitude holograms making use of a high-resolution graphic device. They are used as binary masks which are copied…

Discusses P. B. Shelley’s attitude to Jews in the context of early nineteenth-century antisemitism, and in the light of two fragments in which Shelley speaks in the person of a contemporary Jew. First publication in the West of a little-known…

Recent research into quality management has examined the relationship between quality management and performance. The purpose of this study is to identify the relationships between quality management practices, and to examine the direct and indirect effects of these practices on…

This paper briefly introduces a summary of the special session on Hybrid Reasoning and Coordination Methods on Multi-Agent Systems, held in conjunction with the 4th International Conference on Hybrid Artificial Intelligence Systems 2009 (HAIS’09). The research papers of this session…

The endo-diastereo- and enantioselective 1,3-dipolar cycloaddition of azomethine ylides and electrophilic alkenes is efficiently catalysed by chiral phosphoramidite-silver(I) perchlorate complexes. The reaction allows the presence of different types of substituents in the 1,3-dipole and can be applied to the synthesis…

The central argument of this paper is that current regimes of performance measurement in the
UK's higher education sector are unlikely to deliver any real improvements in performance.
Rather, the paper argues, the most likely outcomes will be further increases…

The localization of a mobile robot in a real environment is a complex task. In this paper, an algorithm that solves the global localization is presented. The proposal is based on a merit function that ranks different possible poses obtained…

The purpose of this paper is to analyze the acknowledgment (ACK) paratext of medical research articles written in English and Spanish in three geographical contexts: Venezuela, Spain and the United States of America. We thus randomly selected 150 research papers…

Kogelnik's coupled-wave (CW) theory has been used for decades to predict the diffraction efficiency of volume diffraction gratings. Although this theory has been applied with success to volume diffraction gratings recorded under a great variety of experimental conditions, its predictions…

There is no doubt that the population is progressively aging. This study evaluates the relationship between the variables of the level and type of physical activity and the degree of pain, with a series of socio-demographic variables, such as age,…