Patterns Of Specialization
Mostrando 13-24 de 46 artigos, teses e dissertações.
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13. Sob o domínio da urgência: o trabalho de diretores de hospitais públicos no Rio de Janeiro / Under the rule of urgency: the role of Rio de Janeiro public hospital directors
This research aims to analyze management practices in public hospitals general hospitals with emergence service in the city of Rio de Janeiro, under municipal, state and federal administration. Based upon French Psychosociological perspectives for organizational analysis, the study seeks an understanding of the social, intersubjective and unconscious dime
Publicado em: 2005
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14. INTELLIGENT ASSISTANCE FOR KDD-PROCESS ORIENTATION / ASSISTÊNCIA INTELIGENTE À ORIENTAÇÃO DO PROCESSO DE DESCOBERTA DE CONHECIMENTO EM BASES DE DADOS
Generally speaking, such aspects involve difficulties in perceiving innumerable facts whose origin and levels of detail are highly diverse and diffused, in adequately interpreting these facts, in dynamically conjugating such interpretations, and in deciding which actions must be performed in order to obtain good results. How are the objectives of the process
Publicado em: 2003
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15. The night and day of dung beetles (Coleoptera, Scarabaeidae) in the Serra do Japi, Brazil: elytra colour related to daily activity
In the present study 387 dung beetles (Coleoptera: Scarabaeidae) were surveyed at the Serra do Japi, in the Atlantic Forest in São Paulo State, with four baited pitfall traps during the months of December, 1998, and January, 1999 during eight 24 hour cycles. A total of 30 species were identified and temporal variation in activity patterns among the species
Revista Brasileira de Entomologia. Publicado em: 2002
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16. Influencia da variação fisionomica da vegetação sobre a composição de aves frugivoras na Mata Atlantica
Due to the alarming rate of deforestation in tropical forests, a better understanding on the organization of biological communities is needed, specifically regarding the interactions between birds and plants. Although this aspect is not often included among the top priorities for biodiversity conservation, it must be considered an important of effort in the
Publicado em: 2002
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17. SENSOR : um sistema sensorial inteligente distribuido
This work describes an artificial distributed intelligent system, called SENSOR , aimed to simulate the natural visual system and to verify the consistency of some hypothesis in the literature about its physiology. The processing of the visual information occurs in different levels, requiring the specialization and distribution of the neuron. This paradigm w
Publicado em: 1996
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18. Case-mix specialization in the market for hospital services.
Historically, cost-based reimbursement encouraged hospitals to compete on the basis of quality, leading to duplication of services and other inefficient behavior. More recently, prospective payment, selective contracting, and other innovations in reimbursement have strengthened incentives for more efficient hospital operations. In principle, hospitals may be
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19. Evolutionary consequences of changes in species' geographical distributions driven by Milankovitch climate oscillations
We suggest Milankovitch climate oscillations as a common cause for geographical patterns in species diversity, species' range sizes, polyploidy, and the degree of specialization and dispersability of organisms. Periodical changes in the orbit of the Earth cause climatic changes termed Milankovitch oscillations, leading to large changes in the size and locati
The National Academy of Sciences.
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20. Endothelial cell diversity revealed by global expression profiling
The vascular system is locally specialized to accommodate widely varying blood flow and pressure and the distinct needs of individual tissues. The endothelial cells (ECs) that line the lumens of blood and lymphatic vessels play an integral role in the regional specialization of vascular structure and physiology. However, our understanding of EC diversity is
National Academy of Sciences.
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21. Ecological specialization and population size in a biodiversity hotspot: How rare species avoid extinction
Species with narrow environmental niches typically have small geographic ranges. Small range size is, in turn, often associated with low local abundance. Together, these factors should mean that ecological specialists have very small total populations, putting them at high risk of extinction. But some specialized and geographically restricted species are anc
National Academy of Sciences.
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22. Evolutionary origin, diversification and specialization of eukaryotic MutS homolog mismatch repair proteins
Most eubacteria, and all eukaryotes examined thus far, encode homologs of the DNA mismatch repair protein MutS. Although eubacteria encode only one or two MutS-like proteins, eukaryotes encode at least six distinct MutS homolog (MSH) proteins, corresponding to conserved (orthologous) gene families. This suggests evolution of individual gene family lines of d
Oxford University Press.
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23. Ecological basis of extinction risk in birds: Habitat loss versus human persecution and introduced predators
Understanding the ecological mechanisms that underlie extinction is fundamental to conservation. It is well established that not all taxa are equally vulnerable to extinction, but the reasons for these differences are poorly understood. This may be, in part, because different taxa are threatened by different mechanisms. Theoretically, sources of extinct
The National Academy of Sciences.
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24. Chromatin insulators: lessons from the fly
Chromatin insulators are DNA–protein complexes with broad functions in nuclear biology. Drosophila has at least five different types of insulators; recent results suggest that these different insulators share some components that may allow them to function through common mechanisms. Data from genome-wide localization studies of insulator proteins indicate
Oxford University Press.