institutions with higher number of papers are the Natural History Museum (United Kingdom). the University of California, Berkeley (USA), the Museum National d'Histoire Naturelle (France). the Universidad Nacional Autonoma do Mexico (Mexico). the American Museum of Natural History (USA) and…

In the past, as in the present, older people constituted the
largest single group of recipients of nursing care in both
hospital and community settings. However, the practical
realities associated with providing that nursing care and the
changing organisational frameworks…

Energy storage technologies provide an alternative solution to the problem of balancing power generation and power consumption. Redox flow cells are designed to convert and store electrical energy into chemical energy and release it in a controlled fashion when required.…

Characterizations of the containment of a convex set either in an arbitrary convex set or in the complement of a finite union of convex sets (i.e., the set, described by reverse-convex inequalities) are given. These characterizations provide ways of verifying…

The aim of this paper is the characterization of a carbon felt (Le Carbone
Lorraine, RVC 4002) to be used as three-dimensional electrode. A wide
group of very different techniques were used in the physical and structural
characterization of this…

The human visual system is remarkably adept at finding objects of interest in cluttered visual environments, a task termed visual search. Because the human eye is highly foveated, it accomplishes this by making many discrete fixations linked by rapid eye…

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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…

Eumerus purpurariae, described from the Canary Islands (Atlantic), has been reared from the stems (platyclades) of the cactus Opuntia maxima (the first know host) on Nueva Tabarca, a Mediterranean island close to the Iberian coast. The egg, larva and puparium…

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…