1000 resultados para análises clássicas
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Apis mellifera honeybees are social insects of economic importance, by providing honeybee products, and by the pollination of natural areas of vegetation or agricultural areas. The constant use of pesticides, including the thiamethoxam, which is an insecticide belonging to the class of neonicotinoids with neurotoxic action, is subjecting pollinators to situations of severe stress, which has been evidenced by the decrease in the density of honeybees in many parts of the world. By these considerations, the present study aimed to assess the acute toxicity of thiamethoxam for newly emerged workers of A. mellifera, and to investigate the effect of sublethal doses of this insecticide on the survival time and its cytotoxicity to the brain and midgut to the honeybees. It was established the value of the lethal concentration 50 (LC50) equal to 4.28 ng thiamethoxam/μL of food and from it, the sublethal concentrations of 0.428 ng thiamethoxam/μL (CL50/10) and 0.0428 ng thiamethoxam/μL (CL50/100), which were used in bioassays of intoxication of the honeybees. After the bioassays the bees were dissected and the brain and midguts were collected to analyze possible morphological (staining with Hematoxylin-Eosin) and histochemical alterations (Xylidine Ponceau technique, and Feulgen and PAS reactions) caused by exposure to thiamethoxam, and to calculate the lethal time (LT50) for the workers. The duration of the bioassays was 8 days after beginning of feeding. The results obtained showed that the thiamethoxam is toxic to newly-emerged workers of A. mellifera, causing changes in survival time of individuals. This study also shown that the thiamethoxam causes morphological and histochemical alterations on the midgut and brain of workers. These alterations may be reflected in physiological and behavioral changes that can modify the operation of the colony
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This project has its topic on child aggression. Child aggression has always been present in the school environment. Therefore, aggressive behaviors have been interpreted as violence in which the educators have come to complaining earlier now. This study has its objective to survey published articles in electronic magazines, which talk about thematic aggression, child aggression and to systemize and analyze these procedures. Therefore, there will be a survey on the articles about this set of themes based on the data from Scielo (Scientific Electronic Library Online). In this data base, there are indexed published articles in electronic magazines from different areas of knowledge considered relevant. The articles will be identified by the keywords of aggressiveness, children, aggression, childhood, infantile, schools and their combinations
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A tectono-stratigraphic study of bivalve coquina-reservoir of Linguado Field allowed to identify two trends of permoporosity development. The delineation of these depositional-diagenetic traps were made through structural and stratigrafic cross-sections and maps. It resulted in the identification of shelf-ramp systems (tilted to SSE), it tickens from 60 to 70 meters and ends against an antithetic fault. The main coquina is bounded by fine siliciclastic units, white clay (low Gamma Ray values) or shale (high Gamma Ray values) lithologies, influencing diagenesis of basal or top coquina limestones (cimented, non-porous). Also in the middle of coquina-reservoir the “clayer” material is also associated with cemented carbonates, with also compartimentalize the reservoir into two subzones. The coquina porosity of the subzones is taken from density-neutron logs, while induction log estimates permeabilities and fluid saturations. It’s noticed the porosity development into pairs, good one followed by a regular/poor one and vice versa. These pairs form verticals succession, pair cycles where porosity improves or decreases upwards. These two scales of pore heterogeneity impose strong layering to the reservoir, and influences fluid saturations, oil-water contacts and porosity cut-offs. In a cross-section with density and induction logs, it can be observed the porosity variation along the shelf-ramp coquina (between 3LI_0004_RJS e 3RJS_0157C_RJ), the porosity is better developed in a downdip direction in the case of the two shelf wells, and also be the three ramp wells. The southern west downdip, 3RJS_0157C_RJ well, has best porosity pairs-cycles; however, its lowest structural conditions favour water saturation. Therefore it is fundamental for reservoir fluid evaluation a cross-plot analysis of RHOB-NPHI and Induction logs
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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This paper aims to discuss the approach of sentences concessive on grammars and teaching books in Portuguese in order to ascertain to what extent is closer or more distant from the description of sentences concessive in real interaction from the perspective of Functional Discourse Grammar. Were consulted normative grammars, descriptive and five textbooks used in primary schools. In some, the grant was not addressed, as in others, we note that, in general, have definitions which simply equate concessive clauses a concept syntactic and sometimes semantic, detaching it from the domain of pragmatic language. This level of analysis is not left out, however, by the prospect Functional Discourse, which analyzes the pragmatic as the broader component within which we analyze the semantics and syntax. From this point of view, we intend to propose new emphases in approach given the award by the grammars and the teaching materials.
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The modernist poet Emílio Moura (1902-1971) incorporates a strictly modern language regarding the imagistic suggesting a mainly poetry metalinguistic. That way, from the works Canto da hora amarga (1932) and Cancioneiro (1944) we attest, through the poetic analysis, that modernity Moura’s poetry takes place in confluences with ideas ranging from biblical tradition and come to the depersonalization of the modern I and questing. We objectify, therefore, demonstrate and explore the metalinguistic and intertextual character that results in the personification of poetry, as clarified muse. To achieve this, this same poetry undergoes a dualistic and pessimistic sentiment, baroque, the I that is divided into life and death, light and shadow; goes through a romantic feeling of anguish and desolation and reaches the multiplicity of the poetic speaker, which promotes a constant struggle with the language. More than draw a correlation between classical and modern ideas (in the sense that the poet creates depersonalization and appropriates of free, short prose or verse, typical of modernism), intend to supply, at least in part, the dearth of studies on the miner poet who has found fertile ground to question and analyze internally the role of poetry in the multiplicity of man and modern society to therefore conclude that universalism the Emílio Moura becomes distinctive and mature. Thus, we will check how poetic inflows corroborate both works for reevaluation and critical insertion of poetic the Emílio Moura in the context of modern/Modernist Brazilian literature
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Pós-graduação em Educação - FFC
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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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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Pós-graduação em Agronomia (Genética e Melhoramento de Plantas) - FCAV
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This academic report presents results of the research developed between 2012 and 2015, and it had as main goal the development of new mapping possibilities of the central areas of the cities of Marília/SP, São Carlos/SP and São José do Rio Preto/SP. We developed this research using mostly the database from Cadastro Nacional de Endereços Para Fins Estatísticos (CNEFE), and after processing the information, it was added the typology established in the Cadastro Nacional de Atividades Econômicas (CNAE). This database, after the final treatment process, provided us information that made possible the production of thematic maps which are used to study central areas, allowing the analysis of spatial logics of companies, the identification of concentration and dispersion of economic activities, arrangement of specialized axis, expansion of the central area, reorganization of the city, among other process and phenomena