143 resultados para Funções de variaveis reais


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Pós-graduação em Matemática em Rede Nacional - IBILCE

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Pós-graduação em Biometria - IBB

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The brachytherapy braquiterapia is an x-ray modality radiotherapy in which stamped or halfstamped radioactive sources in format of seeds are used, wires or to one short distance, in contact or implanted to the fabric to be treated. All the treatment modalities require a previous planning. The formalism recommended for calculation of dose was considered by the AAPM for the first TG-43 Report. In it distributions of dose of isolated seeds measured and calculated by Monte Carlo method in water instead of with models half-empiricists. In this work we in accordance with present some preliminary results of the calculation of functions of radial anisotropy and of dose in the distance for seed of 192Ir, wide used in brachytherapy treatments of high tax of dose (HDR), with the aid of the program based on the Monte Carlo method MCNPX v2.50 (Mount Carlo N ParticleeXtended). The materials chosen in the simulation beyond water, had been MS20 and estriado muscle

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The brachytherapy braquiterapia is an x-ray modality radiotherapy in which stamped or halfstamped radioactive sources in format of seeds are used, wires or to one short distance, in contact or implanted to the fabric to be treated. All the treatment modalities require a previous planning.The formalism recommended for calculation of dose was considered by the AAPM for the first TG-43 Report. In it distributions of dose of isolated seeds measured and calculated by Monte Carlo method in water instead of with models half-empiricists.In this work we in accordance with present some preliminary results of the calculation of functions of radial anisotropy and of dose in the distance for seed of 192Ir, wide used in brachytherapy treatments of high tax of dose (HDR), with the aid of the program based on the Monte Carlo method MCNPX v2.50 (Mount Carlo N ParticleeXtended).The materials chosen in the simulation beyond water, had been MS20 and estriado muscle

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A indústria de software se destaca por sua transversalidade em diversas cadeias produtivas. Também é de importante relevância para o desenvolvimento de um parque industrial consolidado, uma vez que, apresenta-se como peça chave no desenvolvimento das atividades ligadas a micro-eletrônica. Todavia, é um produto que possui características diferenciadas dos demais produtos manufaturados. Ou seja, é formado por uma seqüência de conhecimentos lógicos que delimitam quais são as funções que o produto irá desempenhar, tal formação concede um caráter de imaterialidade a este. O caráter imaterial e a dificuldade de mensurar o real valor agregado do software, devido a sua transversalidade, instigam a curiosidade para investigar os reais benefícios que o setor pode gerar para a estrutura produtiva de um determinado país. O presente trabalho tem por objetivo apresentar as grandes empresas de software e principalmente analisar os tipos de atividades que são desenvolvidas mundialmente por estas. Procura também analisar as atividades offshoring, isto é, aquelas que são realizadas por empresas multinacionais em outros países levando em conta a sua estratégia global. Busca também dar uma ênfase nas atividades realizadas no Brasil, com isto procura mapear o papel dos países em desenvolvimento nestas atividades. A metodologia será desenvolvida a partir de coleta do material bibliográfico, com dois propósitos distintos: entender os tipos de atividades do setor, dinâmica concorrencial, etapas do processo produtivo, evolução histórica e mercado; e também um estudo do processo de internacionalização, focando o fenômeno de offshoring e as estratégias competitivas das empresas do setor. O acompanhamento dos relatórios anuais das empresas da amostra e de notícias veiculadas em periódicos especializados levará a elaboração de “Dossiês Corporativos”... (Resumo completo, clicar acesso eletrônico abaixo)

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Com o aumento da população idosa, aumentou-se também a curiosidade dos pesquisadores em investigar sobre questões relacionadas ao envelhecimento. Este é um processo que acarreta alterações motoras, funcionais e/ou cognitivas nos idosos e se associadas a uma baixa escolaridade podem levar a uma dependência funcional dos mesmos e com isso evoluindo para uma possível institucionalização se combinada com outros fatores como por exemplo, disponibilidade dos familiares. Essa mudança de ambiente em que o idoso é submetido pode lhe trazer alguns danos como depressão, perda cognitva, diminuição dos níveis de atividade física além de uma perda ainda maior da funcionalidade. Diante disso a pesquisa teve como objetivo analisar possíveis relações da escolaridade, com funcionalidade, nível de atividade física, sintomas depressivos e cognição em idosos institucionalizados e não institucionalizados fisicamente ativos, bem como comparar tais variaveis entre os grupos. Participaram deste estudo dois grupos: um grupo de 53 idosos institucionalizados de Rio Claro-SP, distribuidos em oito instituições de longa permanência, representando 20% da referida população. O outro grupo possui 53 idosos ativos da comunidade, participantes de um programa de atividade física para a terceira idade (PROFIT) da Unesp de Rio Claro-SP. Foi utilizada uma ampla bateria de testes e questionários para avaliar funcionalidade, nível de atividade física, sintomas depressivos e cognição (estado cognitivo geral, funções executivas, memória, atenção). Os dados foram analisados estatisticamente com base na estatística descritiva (médias, os desvios-padrão, valores mínimos e máximos, as medianas e os quartis superior e inferior) visando uma descrição geral do estado de ambas as populações. Para a análise entre os grupos foram utilizados os testes t de Student e U de Mann-Whitney e para... (Resumo completo, clicar acesso eletrônico abaixo)

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Considering that persistent organic pollutants (POPs) including synthetic substances belonging to differents organic functions, including organochlorine pesticides (OCPs), which are the most persistent and bioaccumulative, with high toxicity to humans and animals. Accordingly environmental and biological monitoring is necessary, in order to have greater control regarding the irresponsible use of these products. Though there are several analytical methodology reported in the literature to make determinations of this pesticide, they present some difficulties, requiring several steps to make the clean up of the sample. The proposed project aims to optimize a new analytical method that allows to perform the extraction of organochlorine pesticides in fish tissues, employing acetone as solvent assisted by ultrasound bath, making the method more quickly and not requiringfurther steps to purify the sample. Were analyzed the recoveries of pesticides in study in samples of tilapia average values: Heptachlor=84,7±9,8%; Aldrin=87,3±3,5%; Endosulfan=101,4±18,6%; DDE= 90,5± 3,3%, Endrin=102,2±13,8%., DDD=92,1±19,9%; DDT=90,8±6,8%. The real samples showed values granted for our legislation and low values of error

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Falls among older people is a major clinical problem due to its high incidence, with consequent implications for the health and care costs. Elderly patients with dementia of Alzheimer type (AD) are more susceptible to falls due to the impairment of executive functions and gait, with the risk of falls 3 times higher than non-demented elderly. This study used a longitudinal design and aimed to analyze the effects of a regular and systematized physical activity program on the frequency of falls in patients with AD. Additionally, we aimed to correlate the frequency of falls with the executive functions and equilibrium, after and before the physical activity program. The study included 21 patients with clinical diagnosis of AD, divided into two groups: control group (CG), composed of 11 subjects not engaged in any systematized physical activity and training group (TG): 10 seniors who participated in the Cinesioterapia Functional and Cognitive in Elderly with Alzheimer's disease program (PRO-CDA). The physical activity program lasted four months, with weekly frequency of three times, with each session lasting 60 minutes. Were administered the Mini-Mental State Examination (MMSE) to assess cognitive functioning and global score of the Clinical Dementia Rating (CDR) to classify the severity of dementia. For the evaluation of executive functions were used the Clock Drawing Test (TDR) and Frontal Assessment Battery (FAB). In addition, we used the Functional Balance Scale, Berg test (EEFB) and Timed Up-and-Go (TUG) to assess the equilibrium and risk of falls. Falls were recorded by means of a questionnaire, which included the number of falls in the last four months. Analyzing the results, it was observed that TG obtained significant improvements in equilibrium and in executive functions, highlighting the beneficial effects of physical activity in these variables... (Complete abstract click electronic access below)

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With aging process, there is a natural biological decline that eventually may lead to a functional and cognitive decrease. It is important that older people preserve these functions so they can live an independent life. Some declines in old people who attend Geriatric Day-Care tend to be more severe and recurrent. The Square Stepping Exercise (SSE) is a program created by Shigematsu & Okura (2006), in order to improve the balance of its practitioners, thereby decreasing the risk of falls. It is also believed that the SSE stimulates cognition, and thus, executive functions. The present study, with a longitudinal design, evaluated the effects of SSE in balance performance and executive functions of elderly from the “Centro-Dia do Idoso Padre Casagrande” from Rio Claro – SP. A group of 15 people (GT, n = 15), which performed a four month SSE intervention, and a control group (GC; n = 17) answered the following evaluations.: Questionnaire Registration Data and Anamnesis, Questionnaire Baeck Modified for Elderly, Mini-Mental State Examination, Modified Card Sorting Test, Geriatric Depressive Scale, Questionnaire Pfeffer for Instrumental Activities, Berg Balance Scale and Time Up and Go Test. Although significant improvements have not been observed in GT, the results showed a decline in instrumental activities performance in GC, as well as maintenance in executive functions and balance, and also an improvement in depressive symptoms in GT. This way, Square Stepping Exercise can be considered an activity that helps maintaining functional capacity, among them balance, and executive function in elderly people.

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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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Taking into account the treatment offered to adverbial subordination in teaching and learning Portuguese, this article presents contributions from Functional Discourse Grammar concerning clausal (in)dependency and the acceptance of Discourse Subordination in the systematization of adverbial relation in teaching contexts.

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This paper, which examines restrictive and non-restrictive constructions in the Lusophone varieties, assumes that Portuguese has a set of relativization strategies that are recognized by typological linguistics as constructions that define related groups of languages. Thus, it is possible that these different strategies, when employed by the same linguistic system, not really constitute variants of the same syntactic variable but the speaker’s actual choices facing the necessity to perform different social and discursive functions.

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This work examines relative constructions in Portuguese varieties based on the principle that Portuguese has a set of relativization strategies that are recognized in typological linguistics as constructions that define related groups of languages. It is postulated that these different strategies, when employed by the same linguistic system, do not really constitute variants of the same syntactic variable, but they are the speaker’s actual choices facing the necessity to perform different social and discursive functions.

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Based on Hengeveld and Mackenzie (2008)’s Functional Discourse Grammar (FDG), this article aims to analyze the natural and marked orderings of argument constituents in declarative sentences of Brazilian Portuguese taken in IBORUNA corpora. In this way, we conclude that the two natural orderings, proposed by Pezatti (1992), are determined by semantic factor, especially by semantic functions, while the marked ordering ir determined by pragmatic factor, especially by the attribution of pragmatic functions.