929 resultados para Monotone And Semi-monotone Operators


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Pós-graduação em Engenharia Mecânica - FEIS

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Ichthyofaunistic studies aims to broad the knowledge of composition, abundance and distribution of species in certain areas, and when possible, to infer patterns of distribution, as well as extrinsic factors that affect these patterns in space and time. The Paranapanema River suffers the impact of the construction of hydroelectric power plants in cascade system along its main channel, changing the characteristics of lotic to lentic and semi-lentic. These changes affect the entire biocenosis and the surroundings of the reservoir and, in particular, the fish fauna. In this context, the aim of this study was to characterize the fish assemblage in two lakes and stretches of the main channel, located near the outfall of the Paranapanema River, Jurumirim reservoir area, comparing them to their composition and structure, using ecological indices as tools. Fish were caught every three months from April 2011 to January 2013, using gill nets of various mesh openings in four stretches: Environment 1 - Calha Sete Ilhas, Environment 2 - Calha Poço da Pedra, Environment 3 - Lagoa Sete Ilhas and Environment 4 - Lagoa Poço de Pedra. After the capture, the specimens were identified and biometric analysis was performed (total and standard length weight). We captured 4,006 individuals belonging to four orders and 34 species, 31 native species and three non-native species. In abundance (n) and number of species (S), there was a predominance of Characiformes (57 %) followed by Siluriformes (31%). Overall, most of the species was constant concerning the frequency of capture. The five most representative species in abundance were Schizodon intermedius, Cyphocarax modestus, Pimelodus maculatus, Hoplosternum littorale and Serrasalmus maculatus, contributing with 60% of total individuals captured. Regarding the stretches, these species present diversity (H'), evenness (E), dominance (D) and richness (d) of similar species, since the abundance was higher in ...

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The education of children and youth in the rural areas, with the social movements of struggle for land, returns to a place of relevance and is repositioned on the political agenda. This study aims to analyze the process of development and implementation of a pilot project of schools in the rural area of the city of Araraquara, focusing on the subjects’ perception of the region. We adopted a qualitative ethnographic approach, with the following instruments of data collection: participant observation and semi-structured interviews. It was found that the project which was built through a process of struggle of a community in an adversarial relationship with the municipal government, which itself is struggling in an exercise of cultural emancipation and the construction of citizenship. Thus it finds itself in a habit of cultural resistance and in areas that has its effects on representation and social transformation within the community. Notwithstanding, those who participated in the process of the struggle and implementation have been transformed along the way, salvaging their self-esteem, history and a sense of belonging to a community.

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Pós-graduação em Agronomia (Agricultura) - FCA

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Pós-graduação em Ciência Florestal - FCA

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The Cell-dyn 3500 is a multiparameter flow cytometer, which may analyze samples from several species performing several simultaneous analyses. It is able to perform white blood cells, red blood cells and platelet counts, besides differential leukocyte counts, packed cell volume and hemoglobin determination. Cell-Dyn 3500 performs total leukocyte count both optically and by impedance. The equipment may choose one or other method, based on the reliability of the results. Erythrocyte and platelet counts are determined by impedance. Leukocyte differentiation is based on an optical principle, using separation in multiangular polarized light. The objective of this study was to compare the results of complete blood count of Zebu Nellore heifers from Cell-dyn 3500, with those obtained from a semi-automated cell counter (Celm CC 510) and the manual technique. Blood samples were collected from the jugular vein in 5 mL EDTA vacuum tubes from 58 Nellore heifers, at 24 months of age. Samples were processed in parallel in the three different techniques. Results were analyzed using paired t test, Pearson's correlation and the Bland-Altmann method. There was a strong correlation for all parameters analyzed by Cell-Dyn 3500, manual method and semi-automated cell counter, except for basophils and monocytes counts. These results confirm that this analyzer is reliable for blood samples analysis of zebu cattle.

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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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With the wide variety of content to be worked out what really is expected of students in curricular physical education component? And as teachers conduct and evaluate this learning? These processes occur in the same way in public and private institutions? What is the relationship of the assessment with the students, with content and with the school? These were questions that motivated this research, which aims to conduct a desk review involving different schools, and interview their teachers, in order to identify possible relationships between teachers, students and educational institutions when referring to the assessment of physical education, between schools in different school systems (private, state and municipal), specifically from 6th to 9th grade. The survey was conducted in three different schools in the city Bauru/SP, being a private school, a school hall and a state school, and their physical education teachers. As a methodological reference was used qualitative research, and documentary analysis and semi-structured interviews were the techniques used for data collection. The data collected were tabulated and analyzed separately, and after the first analysis were separated into four categories that related to the study of literature review, interviews of teachers and the political projects of schools teaching (the documents that were analyzed). After the analysis performed it was revealed that the ways teachers surveyed perform their assessments contradicts the main problems and difficulties found in the literature. And regardless of the demands made by the educational institution that really influences the evaluation in physical education classes is the commitment and professional commitment to his students and his principles

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A mapping scheme is presented which takes quantum operators associated to bosonic degrees of freedom into complex phase space integral kernel representatives. The procedure consists of using the Schrödinger squeezed state as the starting point for the construction of the integral mapping kernel which, due to its inherent structure, is suited for the description of second quantized operators. Products and commutators of operators have their representatives explicitly written which reveal new details when compared to the usual q-p phase space description. The classical limit of the equations of motion for the canonical pair q-p is discussed in connection with the effect of squeezing the quantum phase space cellular structure. © 1993.