Utilização dos parâmetros físico-químicos e redes neurais artificiais na identificação dos méis de abelhas (Apis mellifera L.) produzidos no verão e inverno na microrregião de Campos de Jordão, São Paulo

The objective of this work was to typify, through physicochemical parameters, honey from Campos do Jordão’s microrregion, and verify how samples are grouped in accordance with the climatic production seasonality (summer and winter). It were assessed 30 samples of honey from beekeepers located in the cities of Monteiro Lobato, Campos do Jordão, Santo Antonio do Pinhal e São Bento do Sapucaí-SP, regarding both periods of honey production (November to February; July to September, during 2007 and 2008; n = 30). Samples were submitted to physicochemical analysis of total acidity, pH, humidity, water activity, density, aminoacids, ashes, color and electrical conductivity, identifying physicochemical standards of honey samples from both periods of production. Next, we carried out a cluster analysis of data using k-means algorithm, which grouped the samples into two classes (summer and winter). Thus, there was a supervised training of an Artificial Neural Network (ANN) using backpropagation algorithm. According to the analysis, the knowledge gained through the ANN classified the samples with 80% accuracy. It was observed that the ANNs have proved an effective tool to group samples of honey of the region of Campos do Jordao according to their physicochemical characteristics, depending on the different production periods.

Sobre a desintegração de prótons em movimento circular em campos gravitacionais

Pós-graduação em Física - IFT

Dinâmica de campos escalares fora do equilíbrio

Pós-graduação em Física - IFT

Simulação de Monte Carlo: de modelos de spin à teoria de campos na rede

Pós-graduação em Física - IFT

Método de integração em dimensão negativa em teoria quântica de campos

This work is a review of the Negative Dimension Integration Method as a powerful tool for the computation of the radiative corrections present in Quantum Field Perturbation Theory. This method is applicable in the context of Dimensional Regularization and it provides exact solutions for Feynman integrals with both dimensional parameter and propagator exponents generalized. These solutions are presentedintheformoflinearcombinationsofhypergeometricfunctionswhosedomains of convergence are related to the analytic structure of the Feynman Integral. Each solution is connected to the others trough analytic continuations. Besides presenting and discussing the general algorithm of the method in a detailed way, we offer concrete applications to scalar one-loop and two-loop integrals as well as to the one-loop renormalizationofQuantumElectrodynamics (QED)

O processo de verticalização na cidade de São José dos Campos - SP e sua arquitetura no período de 1960 a 2010

From the second half of the twentieth century, due to several factors that have attracted industries and public investments to the city, São José dos Campos has begun to stand out in the economic and industrial scenario. Consequently, the city received a big migratory flow of workers, families and those who seeked a better life, which caused the horizontal e vertical expansion of the city. With the high demand of urban spaces and increasing of property speculation, the verticalization process was necessary. Along with the constructions of new buildings, the first models of the modern architecture began to emerge

O processo de verticalização na cidade de São José dos Campos - SP e sua arquitetura no período de 1960 a 2010

From the second half of the twentieth century, due to several factors that have attracted industries and public investments to the city, São José dos Campos has begun to stand out in the economic and industrial scenario. Consequently, the city received a big migratory flow of workers, families and those who seeked a better life, which caused the horizontal e vertical expansion of the city. With the high demand of urban spaces and increasing of property speculation, the verticalization process was necessary. Along with the constructions of new buildings, the first models of the modern architecture began to emerge

Hospital costs related to streptococcal meningitis among children in Sao Jose dos Campos, Sao Paulo State, Brazil

Knowledge of hospital costs is highly important for public health decision-making. This study aimed to estimate direct hospital costs related to pneumococcal meningitis in children 13 years or younger in the city of Sao Jose dos Campos, Sao Paulo State, Brazil, from January 1999 to December 2008. Data were obtained from medical records. Hospital costs were calculated according to the mixed method for measurement of quantities of items with identified costs and value attribution to items consumed (micro-costing and gross-costing). All costs were calculated according to monetary values for November 2009 and in Brazilian currency (Real). Epi Info 3.5.1 was used for frequencies and means analysis. Forty-one cases were reported. Direct hospital costs varied from R$ 1,277.90 to R$ 19,887.56 (mean = R$ 5,666.43), or 10 to 20 times the mean cost of hospitalization for other diseases. Hospital staff labor was the highest cost, followed by medication, procedures, supplies, and lab tests.

Custos hospitalares da meningite causada por Streptococcus pneumoniae na cidade de São José dos Campos, São Paulo, Brasil

O conhecimento dos custos hospitalares é de grande importância para os processos de tomada de decisão em saúde pública. O objetivo deste estudo foi estimar os custos hospitalares diretos relacionados à meningite pneumocócica em crianças com até 13 anos (inclusive), na cidade de São José dos Campos, São Paulo, Brasil, de janeiro de 1999 a dezembro de 2008. Foram obtidos dados de prontuários médicos. O cálculo foi realizado pelo método misto de mensuração das quantidades dos itens de custos e atribuição de valor aos itens consumidos (micro-costing e gross-costing). Os valores monetários referem-se a novembro de 2009, sendo expressos em reais. A análise das frequências e médias foi realizada pelo programa Epi Info versão 3.5.1. Foram notificados 41 casos. Os custos hospitalares diretos variaram de R$ 1.277,90 a R$ 19.887,56 (média = R$ 5.666,43), ou seja, 10 a 20 vezes maiores que o custo médio de internações pago pelo SUS. Os custos dos honorários profissionais foram os mais relevantes, seguidos pelos custos dos medicamentos, procedimentos, materiais e exames laboratoriais.

Estrutura e aspectos da regeneração natural de Floresta Ombrófila Mista no Parque Estadual de Campos do Jordão, SP, Brasil

O estudo buscou avaliar diferenças florísticas e estruturais entre os componentes adulto e regenerante de trecho de Floresta Ombrófila Mista em Campos do Jordão, a fim de levantar hipóteses sobre sua trajetória sucessional. Para amostragem do componente adulto (CAP > 15 cm) foram instaladas 50 parcelas permanentes de 10 × 20 m e, em cada uma dessas, cinco subparcelas de 1 × 1 m para amostragem do componente regenerante (h > 30 cm e CAP < 15 cm). No componente adulto foram amostrados 1.770 indivíduos, distribuídos em 58 espécies, 38 gêneros e 26 famílias (H' = 3,08 e J = 0,73). Já entre os regenerantes foram observados 576 indivíduos, 55 espécies, 39 gêneros e 23 famílias (H' = 3,41 e J = 0,84). Constatou-se que são necessárias ações de manejo para a conservação in situ das coníferas locais.