999 resultados para Milner, Alfred Milner, Viscount, 1854-1925.


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The main factors that influence the species distribution are related mainly with the dispersion capacity, behavior, presence of other species and to the factors physicist-chemistries. Had been evaluated ecological factors that affect the distribution of the genus Astyanax in Chapada dos Guimaraes headstreams, Cuiaba River basin, Mato Grosso, Brazil. Samples in 27 streams had been made in Chapada dos Guimaraes, and the fish had been collected through the method of electric fish, and the ambient data had been analyzed with one technique of called ordinance of Principal Components Analysis (PCA). 250 individuals had been collect, being 95 A. asuncionensis, 62 A. abramis, 36 A. lineatus and 57 individuals had been captured identified like A. scabripinnis (Jenyns, 1842) sensu Eigenmann, 1927. In relation the ambient characteristics, the variables gotten allowed two axes of the PCA, who explain 53,114 % of the variance of the seven variables analyzed. Axle 1, Main Component 1, explained 31,147 % and Axle 2, Main Component 2, explained 21,967 % of the variation of the ambient data. The formation of axle 1 was influenced positively by the depth and negative by the conductivity and pH. The formation of axle 2 was influenced positively by the Turbidity and negative to the Dissolved Oxygen. The ordinance of the species throughout for the axes corroborated for the understanding of the distribution of specimens.

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Spittlebugs are insects that suck sap from plants and regurgitate saliva containing toxic enzymes into the leaves. As a consequence, the conductive channels are blocked resulting in dry leaves, thus giving a burned aspect to the plantation. This work performed ultrastructural analyses of the salivary glands of the sugarcane spittlebug Mahanarva fimbriolata, since these organs produce the enzymes that are injected into the plants, thus being responsible for the economic losses in the production of sugarcane. Three kinds of secretory cells are found in principal gland, forming the lobules I-IV. The main differences among these cells relate to size, morphology and electron density of the secretory vesicles. The accessory glands contain different secretory vesicles to those in the principal gland. Muscular cells are found around the entire gland. The different secretory vesicles found in both principal and accessory glands indicate that the gland produces different substances or that the secretion in the interior of cells passes through a maturation process. (c) 2005 Elsevier Ltd. All rights reserved.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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The study was realized among oncological nurses in their daily work routine and aimed to understand these professionals' subjective action, starting from their relation with patients, adopting a phenomenological reference framework based on the ideas of Alfred Schütz. The question: what does working in oncological care mean to you? Please describe, was used to collect statements, which were analyzed and clarified the typical action of a nurse caregiver in this daily routine. The study revealed that oncological care implies dealing with humans in a fragile situation; requires a relationship of affectivity; is care delivery that entails the genesis of professional burnout. Care delivery in oncology is highly complex, requiring a professional competence that goes beyond the technical-scientific sphere. Nursing professionals need to seek strategies which enable them to face the fatigue they are submitted to in their work.

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A review of the Neotropical Lauxaniidae genus Paracestrotus Hendel, 1925 is presented with redescription of P. gibbosus Hendel, 1925 and the description of a new species, P. pulchripennis sp. n., from Brazil, Pará, including illustrations and a key. Copyright © 2006 Magnolia Press.

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El proyecto de investigacion, base para un estudio a nivel nacional, pretende conocer algunas variables tales como la edad, sexo, profesion, alfabetismo, caracteristicas de la familia, legitimidad y edad de la migracion para varios grupos de migrantes en momentos y lugares diferentes. La principal fuente de informacion son los 7 censos publicados entre 1854 y 1920. Su analisis solo entrega respuestas generales que deben ser completadas con estimaciones de migracion neta calculadas mediante tasas de supervivencia. Utilizando un escaso numero de manuscritos de censos disponibles, se ha podido configurar las caracteristicas basicas del migrante en algunas provincias, pero no su evolucion. Otra fuente de informacion cuantitativa importante son los registros matrimoniales de las parroquias, aunque presentan datos muy parciales. Cada una de las fuentes anteriores entrega informacion sobre distintos grupos de migrantes. Un analisis de sus diferentes resultados para una misma region permitira calificar los meritos de cada una.

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Incluye Bibliografía

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Background: The World Health Organization (WHO) study entitled Suicide Trends in At-Risk Territories (START) is an international multisite initiative that aims to stimulate suicide research and prevention across different areas of the globe. A central component of the study is the development of registration systems for fatal and nonfatal suicidal behaviors. Aims: This paper provides an overview of the data collected on suicidal behaviors from the participating locations in the START study. Method: Descriptive statistics on the data are presented in terms of age, sex, and method. Results: Agreater proportion of suicide deaths occurred among males. In all areas except the Philippines more females than males engaged in nonfatal suicidal behaviors. Compared to Australia, Italy, New Zealand, the Philippines, and Hong Kong SAR, in the Pacific Islands suicide most often occurs in younger age groups. Results indicate notable variations between countries in choice of method. A greater proportion of suicides occurred by hanging in Pacific Islands, while inhalation of carbon monoxide, use of firearms, ingestion of chemicals and poisons, and drug overdose were the most frequent methods of choice in other areas. Conclusion: The information drawn from this study demonstrates the enormous variation in suicidal behavior across the areas involved in the START Study. Further research is needed to assess the reliability of the established data-recording systems for suicidal behaviors. The baseline data established in START may allow the development of suicide prevention initiatives sensitive to variation in the profile of suicide across different locations. © 2013 Hogrefe Publishing.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Pós-graduação em Biologia Animal - IBILCE

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)