907 resultados para Hierarchy and topology


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Este artigo aborda as formulações que adolescentes, alunos do ensino fundamental, elaboram sobre cor e preconceito, a partir da relação que estabelecem com as músicas que consomem. Nesse sentido, o consumo é visto como uma chave para a compreensão desse grupo etário e de uma das dimensões de sua vida: a leitura que fazem da hierarquia da cor e a forma como se percebem nela. Importa-nos, portanto, perscrutar de que forma a preferência manifestada por adolescentes que cursam o ensino fundamental permite entrever a relação que estabelecem com esse significante social brasileiro - a cor - e uma das relações estabelecidas com ele - o preconceito.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Pós-graduação em Zootecnia - FMVZ

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Pós-graduação em Serviço Social - FCHS

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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The quality of life of nursing professionals of character is relevant because the service involves every aspect of workers with personal, social and cultural, so that professionals can result in unproductive and emotionally shaken, and may influence the direct patient care.The aim of this study is to report the quality of life of nursing staff working in the adult ICU of a university hospital.Methodology will be applied to qualitative, through interviews with guiding questions, with the subject all the nursing staff of the Intensive Care Unit - Adult, located in Bauru State Hospital. The survey results were analyzed through content analysis proposed by Bardin. The interviews were divided into categories and subcategories in the sequence. In the category Defining quality of life - hidden connections got four subcategories: happiness, pleasure, interrelation and practice in nursing, which are directly related to the meaning of quality of life. What about the profession as interference in quality of life of nursing staff reached the category A profession in contrast with the quality of life - Connections Exposed that led to the division of four subcategories: proximity to death, absenteeism, double day / salary, shifts, ranking at work and work process. Finally, it concerns the improvement of the profession that can intervene in the quality of life of workers obtained the category Improving occupancy improving the quality of life - Connections to be built, which is subdivided into sub-categories: professional incentive, hierarchy and enhancement of the profession. These categories and subcategories showed significant and important aspects of quality of life of nursing professionals

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Aquaculture practices usually put the Nile tilapia in an artificial social environment, which males predominate due to their faster growth desirable for aquaculture purposes. Such a situation can increase male-male fighting because males are generally more aggressive than females, and also because fighting ability is similar within the same sex, leading to longer contests. As behavior has been used to infer welfare in several fish species, the aim of this study was to investigate whether sex composition affects agonistic interactions, social hierarchy and energetic demand in groups of Nile tilapia (Oreochromis niloticus; L.). Size-matched adult fish were divided in two treatments: MM = four males and MF = two males and two females (10 repetitions for each treatment). The experiment lasted for 11 days and social interactions (aggressiveness and rank order) were recorded at the 2nd, 6th and 10th days (15 min per day). Fish were food deprived and body weight loss was used to infer energetic cost. A higher frequency of lateral threat (Student’s t independent test; t = 2.55; p = 0.02) and total interactions (Student’s t independent test; t = -2.81; p = 0.01) was observed in the MF treatment. MM group showed unstable hierarchy (Binomial test, p = 0.04), which is considered a social stressor. However, mean weight loss was not affected by treatments (Student’s t independent test; t = -0.74; p = 0.47). These results support the idea that sexual composition affects aggressive interactions and destabilizes social hierarchy, but not energy cost

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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The role of magnetohydrodynamics (MHD) turbulence in astrophysical environments is still highly debated. An important question that permeates this debate is the transport of magnetic flux. This is particularly important, for instance, in the context of star formation. When clouds collapse gravitationally to form stars, there must be some magnetic flux transport. Otherwise, the newborn stars would have magnetic fields several orders of magnitude larger than the observed ones. Also, the magnetic flux that is dragged in the late stages of the formation of a star can remove all the rotational support from the accretion disc that grows around the protostar. The efficiency of the mechanism that is often invoked to allow transport of magnetic fields at different stages of star formation, namely ambipolar diffusion, has recently been put in check. We discuss here an alternative mechanism for magnetic flux transport which is based on turbulent fast magnetic reconnection. We review recent results from three-dimensional MHD numerical simulations that indicate that this mechanism is very efficient in decoupling and transporting magnetic flux from the inner denser regions to the outskirts of collapsing clouds at different stages of star formation. We discuss this mechanism also in the context of dynamo processes and speculate that it can play a role both in solar dynamo and in accretion disc dynamo processes.

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Se estudia la relación de dominancia entre dos especies de peces (Parablennius parvicornis y Mauligobius maderensis) que conviven en los charcos del intermareal rocoso de las Islas Canarias. Ambas especies mostraron un patrón de jerarquía lineal basado en ataques. Se discute la jerarquía interespecífica y el cambió de rol al enfrentarse individuos de la misma especie e individuos de especies diferentes. Parablennius parvicornis mostró un comportamiento de cooperación intraespecífica y de codominancia frente a Mauligobius maderensis.It is studied the relationship of dominance between two fish species (Mauligobius maderensis and Parablennius parvicornis) which coexist in the same intertidal pools at the rocky shore of the Canary Islands. Both species showed a pattern of linear hierarchy based in attacks. It is discussed the intraspecific hierarchy and variations in the role of individuals when confronted against coespecifics or individuals of a different species. Parablennius parvicornis showed intraspecific cooperation and codominance against Mauligobius maderensis.