Resolução de problema de valor no contorno associado ao projeto de reatores de fluxo disperso empregados no tratamento de efluentes

The objective of this work was to develop a numerical method to solve boundary value problems concerning to the use of dispersion model for describing the hydraulic behavior of chemical or biological reactors employed in the wastewater treatment. The numerical method was implemented in FORTRAN language generating a computational program which was applied to solve cases involving reaction kinetics of both integer and fractional orders. The developed method was able to solve the proposed problems evidencing to be a useful tool that provides more accurate design of wastewater treatment reactors

Perfil epidemiológico de parturientes submetidas à cesariana na maternidade de um hospital escola de Botucatu-SP

During the pregnancy process, the maternal organism commonly undergoes changes. Such changes follow the normal course of pregnancy; however, some maternal or fetal factors can interfere with pregnancy and adversely affect its outcomes, thus triggering what is referred to as high-risk pregnancy, which is responsible for increasing maternal, fetal or newborns’ morbimortality rates1,2. One of the obstetric alternatives for a safe resolution of this pregnancy type is the caesarean section. Nevertheless, an expressive increase in the number of caesarean sections has been observed worldwide, and they are, many times, unnecessarily indicated8. The world Health Organization (WHO) recommends that the total number of caesarean sections in relation to the total number of deliveries performed at health service should be a maximum of 15% 11, a limit that is easily surpassed in various services. To outline the epidemiological profile of pregnant women submitted to caesarean sections at a reference health care service in the city of Botucatu-SP. This is a cross-sectional, retrospective, exploratory, descriptive, quantitative study. The target population consisted of one hundred pregnant women assisted in this institution, who had been submitted to caesarean sections in 2010 and were randomly selected to compose the sample. In the analyzed period, there were 1,189 deliveries, of which 601 (50.5%) were natural deliveries, 588 (49.4%) were caesarean sections. As regards maternal age, 76% were in the age range of 19 to 36 years. A high percentage of patients (27%) had not completed elementary education and did not have a paid job; 67% were homemakers. Most of the participants were married (56%); 34% of the women were primiparas, but 19% were in their fourth or more pregnancies. Concerning prenatal care, little was found, since many of them had consultations out of the institution which were not recorded... (Complete abstract click electronic access below)

Aplicação da MTF e FWHM para análise de resolução espacial de sensores de Biossusceptometria AC

Neste trabalho foi analisada a resolução espacial de sensores de Biossusceptometria AC (BAC) correlacionando dois métodos consagrados em análise de resolução, a Função de Transferência Modulada (do inglês MTF) e a Largura à Meia Altura (FWHM) da Função de Espalhamento Pontual (PSF). A partir da aquisição da PSF do sistema, foi possível quantificar a resolução dos sensores pelos dois métodos. Foram analisados sensores de diferentes diâmetros para a obtenção da correlação entre os dois métodos. Foi variada também a corrente, indiretamente, pela variação de voltagem de excitação. Com estas metodologias foi possível avaliar a resolução de maneira pontual dos sensores, sendo possível otimizar a utilização dos sensores de acordo com a medida a ser realizada

Aprendizagem dos alunos de 5º ano do ensino fundamental em aritmética e suas dificuldades na resolução de problemas com estrutura multiplicativa

The topic in this work involving the resolution of problems with structure multiplicativa emerged from discussions carried out on the difficulties encountered by students of the first cycle of the Fundamental School in Mathematics, mainly in respect of the arithmetic. The research had as objective to investigate the main difficulties presented by these students when they are faced with a task for a resolution of problems with multiplicativa structure. Were participants, in the first stage of the study, 20 students of the fifth year of the Fundamental School of a state school of public education of the State of Sao Paulo. These students have an assessment containing ten problems with structure multiplicativa answered a questionnaire regarding of mathematics. In the second stage, were selected two students to participate in the think aloud. The data analysis showed that the difficulties presented by the participants were: 1- difficulty to read and interpret the set of problems; 2- select the operation correct; 3- to operate correctly; 4 – Trouble writing

Gravidez na adolescência e evasão escolar

O estudo aborda a relação entre gravidez na adolescência e evasão escolar. Pesquisas mostram que a gestação precoce pode levar ao abandono escolar pelas adolescentes, por vários motivos, como: sintomas típicos da gravidez, vergonha, preconceito, pressão familiar, escolar, principalmente por parte dos amigos, dentre outros. Com isso, o objetivo geral deste trabalhado foi estudar a relação entre evasão escolar e gravidez na adolescência. A pesquisa é do tipo qualitativa e além da revisão da literatura científica, usamos como metodologia para a coleta de dados a entrevista semi-estruturada com cinco adolescentes grávidas, todas evadidas da escola, a fim de saber os reais motivos que levaram as mesmas a abandonarem a escola, bem como a maneira que a escola trabalhou a educação sexual durante o período em que estudavam, os sentimentos e as perspectivas de vida das futuras mães adolescentes. Os resultados indicaram que: a gravidez na adolescência levou ao abandono escolar das adolescentes entrevistadas; nenhuma das adolescentes planejou a gravidez e nem apresentou sentimento positivo ao descobrirem que estavam grávidas. Notou-se a importância dos grupos de amigos na vida das adolescentes; nenhuma adolescente afirmou estar preparada para a função materna; todas as adolescentes com exceção de uma, mostraram ter planos futuros para suas vidas; a escola apareceu como uma fonte de amizade; as causas do abandono escolar estavam sempre relacionadas com a gestação; a maioria das adolescentes mostraram ter o desejo de retornar a escola; a escola pública, de acordo com a ótica da adolescente, não está preparada para recebê-la, pois as que disseram ter educação sexual, afirmaram que tiveram de maneira bastante superficial.

Um estudo sobre a resolução de problemas e suas relações com a afetividade

This research aims at examining the relationship between the performance of elementary school students Cycle I in problem solving and attitudes toward mathematics. For this, a research was conducted at a state school in the city of Bauru which was selected for convenience. Participants were randomly selected consisting of 75 students, of whom 21 were third years and 57 were of three classes of fifth year. The instruments used for data collection were: a informative questionnaire to characterize the students in age, grade, favorite subjects and the least liked, among others, an attitude scale, Likert type, to examine the attitudes toward mathematics; a interviews with 11 selected students according to scores on the attitudes and mathematical problems to be solved through the method of thinking aloud. The results showed that the major difficulties encountered by students in solving problems were: to understand the problems, formalizing the reasoning, recognize in the problem the algorithms needed for its resolution, make calculations with decimal numbers, do combinatorics, using the sum of equal portions instead of multiplying, self-confidence and autonomy in what he was doing, and others; participants with positive attitudes towards mathematics showed greater confidence to solve problems as well as a greater understanding on what was required by them, but were not detected significant relation between the attitudes and performance, since it was unfavorable

Uma proposta de resolução para problemas de roteirização de veículos baseada no algoritmo genético

The vehicle routing problem is to nd a better route to meet a set of customers who are geographically dispersed using vehicles that are a central repository to which they return after serving customers. These customers have a demand that must be met. Such problems have a wide practical application among them we can mention: school transport, distribution of newspapers, garbage collection, among others. Because it is a classic problem as NP-hard, these problems have aroused interest in the search for viable methods of resolution. In this paper we use the Genetic Algorithm as a resolution

Reconhecimento de contorno de edifício em imagens de alta resolução usando os momentos complexos de Zernike

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

Resolução do problema de sequenciamento de múltiplas linhas de montagem de modelos mistos em ambiente de produção enxuta

This work deals with the sequencing of Multi-Mixed-Model Assembly Lines in a lean manufacturing environment, where an operational structure where several kanbans support several mixed-model assembly lines, so that all assembly lines can receive parts or sub-assemblies from all suppliers. To optimize this system, the sequencing seeks to minimize the distance between the real consumption and the constant ideal consumption of parts or subassemblies, thereby reducing the scaling of kanbans and intermediate stocks. To solve the sequencing problems, the method Clustering Search was applied along with the metaheuristics Variable Neighborhood Search, Simulation Annealing and Iterative Local Search. Instances from the literature and generated instances were tested, thus allowing comparing the methods to each other and with other methods presented in the literature. The performance of the Clustering Search with Iterated Local Search stands out by the quality and robustness of their solutions, and mainly for its efficiency, whereas it converges to better results at a lower computational cost

Estudo e aplicação de diferentes métodos de resolução para problemas dinâmicos não-lineares em presença de atrito

The friction phenomena is present in mechanical systems with two surfaces that are in contact, which can cause serious damage to structures. Your understanding in many dynamic problems became the target of research due to its nonlinear behavior. It is necessary to know and thoroughly study each existing friction model found in the literature and nonlinear methods to define what will be the most appropriate to the problem in question. One of the most famous friction model is the Coulomb Friction, which is considered in the studied problems in the French research center Laboratoire de Mécanique des Structures et des Systèmes Couplés (LMSSC), where this search began. Regarding the resolution methods, the Harmonic Balance Method is generally used. To expand the knowledge about the friction models and the nonlinear methods, a study was carried out to identify and study potential methodologies that can be applied in the existing research lines in LMSSC and then obtain better final results. The identified friction models are divided into static and dynamic. Static models can be Classical Models, Karnopp Model and Armstrong Model. The dynamic models are Dahl Model, Bliman and Sorine Model and LuGre Model. Concerning about nonlinear methods, we study the Temporal Methods and Approximate Methods. The friction models analyzed with the help of Matlab software are verified from studies in the literature demonstrating the effectiveness of the developed programming

Modelagem da biomassa acima do solo (BAS), por meio de imagens de alta resolução espacial e índices de vegetação

Pós-graduação em Agronomia - FEIS

Resolução de problemas e linguagem em EJA

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

Desenho animado e desenvolvimento moral: uma proposta de intervenção na forma de resolução de conflitos

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

Detecção e restauração de áreas sombreadas em imagens digitais de alta resolução espacial

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

As políticas curriculares da educação profissional técnica de nível médio: desafios/correlações do princípio de competência da Resolução CNE/CEB 4/99

This paper proposes some reflections from activities developped in the context of a research supported by FAPESP called “As políticas de educação profissional e tecnológica no Brasil pós LDB 9394/96”. Our purpose is to analyze the federal legislation of professional and technological education, by enphasizing its impacts in technical schools of São Paulo (Brazil).