Análise de relevância da agricultura familiar no estado do Pará.

Este trabalho identificou municípios paraenses nos quais a agricultura familiar apresenta-se com relevância e potencial de desenvolvimento contrastante. Examinando-se as 12 Regiões de Integração (RI) definidas pelo governo do Estado do Pará, foram gerados rankings dos municípios em cada RI para a relevância da agricultura familiar conforme duas variáveis: a porcentagem da área municipal em estabelecimentos da agricultura familiar, e a produção da cultura da mandioca. Constatou-se que a importância da agricultura familiar não deve ser definida apenas a partir de uma variável. Utilizando-se estas duas variáveis para analisar a relevância do segmento, em 24 possíveis situações (12 RI, municípios com maior e menor índice para cada variável) houve coincidência entre rankings de municípios em apenas uma das situações

Mapping the sensitivity of split ring resonators using a localized analyte

Split ring resonator (SRR) based metamaterials have frequently been demonstrated for use as optical sensors of organic materials. This is made possible by matching the wavelength of the SRR plasmonic resonance with a molecular resonance of a specific analyte, which is usually placed on top of the metal structure. However, systematic studies of SRRs that identify the regions that exhibit a high electric field strength are commonly performed using simulations. In this paper we demonstrate that areas of high electric field strength, termed “hot-spots,” can be found by localizing a small quantity of organic analyte at various positions on or near the structure. Furthermore, the sensitivity of the SRR to the localized analyte can be quantified to determine, experimentally, suitable regions for optical sensing

QUEM Sou Eu? a Construção de Imagem pública: o Gênero Perfil no Orkut

Este trabalho é um estudo exploratório do gênero perfis do Orkut. A análise de dados se dá mais precisamente na seção Sobre + nome do usuário (anterior Quem sou eu), do site de relacionamento. A finalidade da pesquisa foi analisar como as informações linguísticas construídas pelos usuários dessa rede social de relacionamentos permitem uma construção de face de acordo com um comportamento social predominante ou de acordo com a necessidade de autovalorização ou até de uma autopromoção social e/ou possibilidade de inclusão. O trabalho está dividido em cinco capítulos, considerações finais e referências bibliográficas; um dos capítulos descreve perfil como gênero e Orkut como suporte. A seleção do corpus foi feita na página de pesquisa do próprio site e o critério de busca foi direcionado, optamos por usuários que usam a expressão Quem sou ou sou para compor-se nesse meio textual. Foram analisados 20 perfis selecionados de 100 divididos em três grandes categorias: Perfis construídos por intertextualidade, perfis construídos por sequenciação adjetiva e perfis construídos por linguagem na função emotiva. Com base nas mudanças que os sites de relacionamento passam todos os dias, estabelecemos critérios de análises que contemplassem a composição linguística como maneira de construir uma imagem positiva diante de um público virtual. No trabalho também há uma curta explicação do que venha a ser esse público virtual, de acordo com Pierre Levy. Devido a esses perfis serem efêmeros e as informações dadas poderem sofrer constantes atualizações, buscou-se usar ferramentas computacionais, como o printscreen, de modo a preservar as informações contidas na ocasião da pesquisa. A amostra nos permitiu constatar o uso de várias estratégias de construção de imagem positiva que atuam em um contínuo, ora de preservar a face positiva; ora de preservar a face negativa. Essa investigação insere-se no quadro teórico da Teoria da Polidez da Pragmática e se vale das pesquisas de Goffman (1980, 1996), Lakoff (1975), Leech (1983) e Brown e Levinson (1987), além de autores como Marcuschi a fim de escudar as análises pretendidas. Palavras-chave: Orkut, seção Quem sou eu (About + nome do usuário), construção de imagem positiva

Cone geometry optimization and thermal behavior for lithium-ion battery separators

A 3D cone separator geometry for lithium-ion batteries has been optimized taking into account the increase of radius size of one side. Theoretical simulations have been carried out for evaluating the influence of radius size in the cone structure at different discharge rates (1 C and 60 C) in which it was also determined the produced ohmic heat. The value of the discharge capacity in the cone structure depends on the increases of the radius, which is correlated with the electrolyte volume and interface between free electrolyte/cathode. The optimum balance of these parameters is essential for obtaining higher battery performance through this geometry that can be used in the next generation of lithium-ion batteriesPortuguese Foundation for Science and Technology (FCT): UID/FIS/04650/2019, PTDC/CTMENE/5387/2014, UID/CTM/50025/2013, PTDC/FIS-MAC/28157/2017, grant SFRH/BPD/112547/2015 (C.M.C.) and contract CEECIND/00833/2017 (R.G.), including FEDER funds through the COMPETE 2020 Programme and National Funds through FCT. Financial support from the Basque Government Industry Department under the ELKARTEK and HAZITEK programs is also acknowledged. F. Miranda was also supported by Portuguese funds through the CIDMA - Center for Research and Development in Mathematics and Applications, and the Portuguese Foundation for Science and Technology (“FCT - Fundação para a Ciência e a Tecnologia”), within project UID/MAT/04106/201

Psychosocial factors as predictors of quality of life in chronic Portuguese patients

BACKGROUND: Chronic illnesses are diseases of long duration and generally of slow progression. They cause significant quality of life impairment. The aim of this study was to analyse psychosocial predictors of quality of life and of subjective well-being in chronic Portuguese patients. METHODS: Chronic disease patients (n = 774) were recruited from central Portuguese Hospitals. Participants completed self-reported questionnaires assessing socio-demographic, clinical, psychosocial and outcome variables: quality of life (HRQL) and subjective well-being (SWB). MANCOVA analyses were used to test psychosocial factors as determinants of HRQL and SWB. RESULTS: After controlling for socio-demographic and clinical variables, results showed that dispositional optimism, positive affect, spirituality, social support and treatment adherence are significant predictors of HRQL and SWB. Similar predictors of quality of life, such as positive affect, treatment adherence and spirituality, were found for subgroups of disease classified by medical condition. CONCLUSIONS: The work identifies psychosocial factors associated with quality of life. The predictors for the entire group of different chronic diseases are similar to the ones found in different chronic disease subgroups: positive affect, social support, treatment adherence and spirituality. Patients with more positive affect, additional social support, an adequate treatment adherence and a feel-good spirituality, felt better with the disease conditions and consequently had a better quality of life. This study contributes to understanding and improving the processes associated with quality of life, which is relevant for health care providers and chronic diseases support.This study was supported by a grant from the Fundação para a Ciência e Tecnologia (PTDC/PSI/71635/2006, PTDC/PSI/ 73175/2006, SFRH/PROTEC/49284/2008

Optimism on quality of life in Portuguese chronic patients: moderator/mediator?

OBJECTIVE: optimism is an important variable that has consistently been shown to affect adjustment to quality of life in chronic diseases. This study aims to clarify if dispositional optimism exerts a moderating or a mediating influence on the personality traits-quality of life association, in Portuguese chronic patients. METHODS: multiple regression models were used to test the moderation and mediation effects of dispositional optimism in quality of life. A sample of 729 patients was recruited in Portugal's main hospitals and completed self-reported questionnaires assessing socio-demographic and clinical variables, personality, dispositional optimism, quality of life (QoL) and subjective well-being (SWB). RESULTS: the results of the regression models showed that dispositional optimism did not moderate the relationships between personality traits and quality of life. After controlling for gender, age, education level and severity of disease perception, the effects of personality traits on QoL and in SWB were mediated by dispositional optimism (partially and completely), except for the links between neuroticism/openness to experience and physical health. CONCLUSION: dispositional optimism is more likely to play a mediating, rather than a moderating role in personality traits-quality of life pathway in Portuguese chronic patients, suggesting that "the expectation that good things will happen" contributes to a better quality of life and subjective well-being

Aspetos bioecológicos de flebotomíneos (Diptera, Psychodidae), vetores de Leishmania sp., capturados no Velho e no Novo Mundo: Alentejo, Portugal e Volta Redonda, Brasil, 2016-2017

Aspectos bioecológicos de flebotomíneos no Novo e Velho mundo: Brasil e POrtuga

A closed form solution for pollutant dispersion in atmosphere considering nonlocal closure of the turbulent diffusion

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Stigma and obesity: comparative study between candidates to obesity surgery and patients already submitted to this treatment

Baratte François. Un trésor d'argenterie découvert en Asie centrale. In: Bulletin de la Société Nationale des Antiquaires de France, 2001, 2006. pp. 176-177