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Scientific World (scientific + world)
Selected AbstractsCitation analysis and bibliometric research in the field of ergonomicsHUMAN FACTORS AND ERGONOMICS IN MANUFACTURING & SERVICE INDUSTRIES, Issue 3 2010Derek R. Smith Abstract Given that journal impact factors now represent such a "hot" topic in the modern scientific world, it is essential that ergonomists remain fully cognizant of the citation-based research that has been conducted in our field. This article reviews and examines bibliometric research in the ergonomics profession, ranging from seminal work on content analysis and citation indexing, to some of the latest research describing ergonomics journal lists and longitudinal impact factor trends. Overall, history has shown how citation-based studies have become increasingly common in the ergonomics field during the past few decades, and, as we move through the 21st century, ergonomics journals continue to mature as a result. © 2010 Wiley Periodicals, Inc. [source] Poverty, health and development in dermatologyINTERNATIONAL JOURNAL OF DERMATOLOGY, Issue 2007Aldo Morrone MD The WHO Constitution states that "The enjoyment of the highest attainable standard of health is one of the fundamental rights of every human being without distinction of race, religion, political, economic or social condition." The right to health means that governments must generate conditions in which everyone can be as healthy as possible. Such conditions range from ensuring availability of health services, healthy and safe working conditions, adequate housing and nutritious food. In this report the author analyzes the relationship among health, dermatology and development and tries to find out what the scientific world, including dermatologists, could do for the improvement of health systems. [source] MODELING VARIETAL EFFECT ON THE WATER UPTAKE BEHAVIOR OF MILLED RICE (ORYZA SATIVA L.) DURING SOAKINGJOURNAL OF FOOD PROCESS ENGINEERING, Issue 6 2007B.K. YADAV ABSTRACT Milled rice is soaked until saturation before cooking and other processing. The soaking behavior of the milled rice is affected by varietal factor as well as initial moisture content (M0) of the samples. In the present study, tests were performed for milled whole kernels of 10 rice varieties ranging from low to high amylose content (16,29% d.b.) with three initial moisture levels (approximately 8, 12 and 16% d.b.) for monitoring water uptake in rice kernels during soaking at room temperature (25 ± 1C), in relation to the varietal differences manifested by the physicochemical properties. The water uptake by milled rice kernels took place at a faster rate in the beginning and was followed by a diminishing rate finally leading to a saturated value during soaking. The water uptake of the kernels during soaking could be best expressed by a modified exponential relationship with R2 values ranging from 0.971 to 0.998 for all varieties. The slope of the fitted straight line between actual and estimated moisture contents of milled rice during soaking using a modified exponential relationship was about unity (0.998) with a high R2 value of 0.989 and a root mean square error of 1.2% d.b. The parameters of the fitted model were the function of the M0 and the physicochemical properties of the milled rice. Using developed relationship, the water uptake of the milled rice during soaking could be estimated from its M0 and the physicochemical properties within±10% of the actual values. PRACTICAL APPLICATIONS This information would be useful for the scientific world working on the soaking characteristics of various varieties of rice, mainly for the modeling of the soaking process. It could also be used as a tool in selecting the rice varieties to meet their desired water uptake properties in relation to their psychochemical properties by rice breeder scientists. [source] Drama activities as ideational resources for primary-grade children in urban science classroomsJOURNAL OF RESEARCH IN SCIENCE TEACHING, Issue 3 2010Maria Varelas Abstract In this study we explored how dramatic enactments of scientific phenomena and concepts mediate children's learning of scientific meanings along material, social, and representational dimensions. These drama activities were part of two integrated science-literacy units, Matter and Forest, which we developed and implemented in six urban primary-school (grades 1st,3rd) classrooms. We examine and discuss the possibilities and challenges that arise as children and teachers engaged in scientific knowing through such experiences. We use Halliday's (1978. Language as social semiotic: The social interpretation of language and meaning. Baltimore, MD: University Park Press) three metafunctions of communicative activity,ideational, interpersonal, and textual,to map out the place of the multimodal drama genre in elementary urban school science classrooms of young children. As the children talked, moved, gestured, and positioned themselves in space, they constructed and shared meanings with their peers and their teachers as they enacted their roles. Through their bodies they negotiated ambiguity and re-articulated understandings, thus marking this embodied meaning making as a powerful way to engage with science. Furthermore, children's whole bodies became central, explicit tools used to accomplish the goal of representing this imaginary scientific world, as their teachers helped them differentiate it from the real world of the model they were enacting. Their bodies operated on multiple mediated levels: as material objects that moved through space, as social objects that negotiated classroom relationships and rules, and as metaphorical entities that stood for water molecules in different states of matter or for plants, animals, or non-living entities in a forest food web. Children simultaneously negotiated meanings across all of these levels, and in doing so, acted out improvisational drama as they thought and talked science. © 2009 Wiley Periodicals, Inc. J Res Sci Teach 47: 302,325, 2010 [source] Orexins/hypocretins: waking up the scientific worldCLINICAL ENDOCRINOLOGY, Issue 4 2001Shahrad Taheri First page of article [source] | ||||||||||