997 resultados para Déficit em conta corrente
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The physiologist H. Selye defined stress as the nonspecific response of the body to any factors that endanger homeostasis (balance of internal environment) of the individual. These factors, agents stressors, are able to activate the Hypothalamic-Pituitary-Adrenal (HPA) axis, thus resulting in the physiological responses to stress by the release of glucocorticoids that leads to psychophysiological changes, including effects on cognitive functions such as learning and memory. When this axis is acutely stimulated occurs a repertoire of behavioral and physiological changes can be adaptive to the individual. Notwithstanding, when the HPA axis is chronically stimulated, changes may favor the development of, such as anxiety disorders. Some drugs used in the clinic for the treatment of anxiety disorders these can exert effects on cognitive function, on the HPA axis and on the anxiety. In this context, the aim of our study was to investigate the effects of administration i.p. acute of diazepam (DZP, 2 mg/kg), buspirone (BUS, 3 mg/kg), mirtazapine (MIR, 10 mg/kg) and fluoxetine (FLU, 10 mg/kg) in male mice submitted to acute restraint stress, and evaluated using plus-maze discriminative avoidance task (PMDAT), which simultaneously evaluates parameters such as learning, memory and anxiety. Our results demonstrated that (1) the administration of DZP and BUS, but not FLU, promoted anxiolytic effects in animals; (2) administration mirtazapine caused sedative effect to animals; (3) in the training session, the animals treated with BUS, MIR and FLU learned the task, on the other hand DZP group showed impairment in learning; (4) in the test session, animals treated with DZP, BUS, and MIR showed deficits in relation to discrimination between the enclosed arms, aversive versus non-aversive arm, demonstrating an impairment in memory, however, animals treated with FLU showed no interference in the retrieval of this memory; (5) acute stress did not interfere in locomotor activity, anxiety, or learning on the learning task, but induced impairment in retrieval memory, and the group treated with FLU did not demonstrated this deficit of memory . These results suggest that acute administration of drugs with anxiolytic and antidepressant activity does not interfere with the learning process this aversive task, but impair its retrieval, as well as the acute restraint stress. However, the antidepressant fluoxetine was able to reverse memory deficits promoted by acute stress, which may suggest that modulation, even acutely serotonergic neurotransmission, by selectively inhibiting the reuptake of this neurotransmitter, interferes on the process of retrieval of an aversive memory
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This research aimed to understand the place that the child s play in the childish education of Vitoria da Conquista s public system. We understand the childish education institution like a space that should respect the child as a person in a peculiar condition of development. We adopted the social-historical approach understood from Vygotsky and Leontiev, with the social theory of construction of knowledge and its dialogue with authors like Piaget e Brougère. The child s play was seen like result of social relations with great influence in the childish development. The research was accomplished in 04 public day care centers, amongst 18 existent ones in the city. While subjects of investigation participated 09 educators that works with children with ages between 03 and 04 years old and the children of their respective class-room. The procedures used were the participative observation and the interview with the educators, as a procedure of composition of research corpus, focusing the child s play activity, particularly in the way that it is expressed in the childish education. From of corpus constitution we used the thematic content analysis. We clustered the appearance of child s play in the childish education in three thematic nucleuses to detailed analysis: 1. mediated by the educator; 2. proposed by the educator; and 3. started by the children. The results show that, despite of the limitations that configure the day care centers routine, the child s play appears in the childish education. We hope, through the comprehension of the place occupied by the child s play in the childish education, contributes to the execution of the public politics, above all in the educational scope, to children with ages between zero and six years old, fomenting the discussion of the educator practice, its limitations and possibilities
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This study aid to understand the work conditions of street vendors located on the sidewalks of two malls in Brazil Northeast Natal / RN - Both malls Natal Shopping and Via Direta, to analyze their inclusion in the informal economy and to study the supposed autonomy provided by work as self-employment in its both aspects economic and social analyzing the importance on the condition of "masters of their own business" has for the street vendors, as an alternative to not submission to the figure of the boss, that represents the exploitation of one class over another. The theoretical and methodological aspects that support this study was aimed in discussion on the restructuring of production, considering its effects on the world of work, pointing to unemployment as one of the potencies element of excluded processes that exciting workers to engage in the informal market. Informality is presented as a survival strategy and as integrating part of the reproduction of capital. This research was conducted under a critical perspective, whish has been utilized quantitative and qualitative analyses. The results of this study format questions that provided during the research process the socio-economic characterization of workers, main cause of this study, and how street vendors expres their status of workers as self-employed for their work, and the perception that they have on their form of inclusion in the informal market.
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Desde o final do século XX, as novas formas de produção documental e as novas tecnologias de informação apresentadas à Arquivística têm levado os profissionais da informação a repensar os conceitos e princípios arquivísticos postulados nos antigos manuais da área. Nesse contexto, destaca-se a produção arquivística canadense, que transformou o país em solo fértil para as discussões que circundam a disciplina na contemporaneidade, representando muito bem as necessidades colocadas pelos novos meios de produção documental aos arquivistas na sociedade da informação, redescobrindo princípios e (re) definindo conceitos, métodos e critérios para a criação, manutenção e uso de documentos em meio tradicional e eletrônico. Foi notadamente na década de 1980, que um novo paradigma se enunciou na área e, a partir dele, três correntes emergiram: a Arquivística Integrada - enunciada pela Escola de Québec - que propõe a reintegração da disciplina por meio do ciclo vital dos documentos e uma possível aproximação com a Ciência da Informação, graças à incorporação do termo informação orgânica registrada, como substituição ao termo documento de arquivo; a Arquivística Funcional ou Pós-Moderna, enunciada por Terry Cook - que propõe uma renovação e reformulação dos princípios e conceitos originais da disciplina, adotando a corrente Pós-moderna como pano de fundo; e a Diplomática Arquivística, enunciada primeiramente na Itália por Paola Carucci, mas desenvolvida e reformulada na América do Norte por Luciana Duranti, que busca, por meio do estudo da Diplomática, estabelecer critérios para a crítica textual dos documentos contemporâneos, garantindo ao método diplomático um posto fundamental na Arquivística contemporânea. A vista de tais aspectos, analisa-se, comparativamente, o universo epistemológico dessas três abordagens arquivísticas canadenses, enquanto perspectivas emergentes para a construção de uma disciplina contemporânea, capaz de dar conta dos novos processos de produção, organização e uso da informação orgânica registrada.
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OBJETIVO: Caracterizar e comparar as funções motoras fina, sensorial e perceptiva de escolares com Transtorno do Déficit de Atenção com Hiperatividade (TDAH) e escolares com bom desempenho escolar sem alterações de comportamento. MÉTODOS: Participaram 22 escolares do ensino fundamental, de gênero masculino, distribuídos em: GI - 11 escolares com Transtorno do Déficit de Atenção com Hiperatividade; e GII - 11 escolares com bom desempenho acadêmico e sem alterações de comportamento. Os escolares foram submetidos à aplicação do Protocolo de Avaliação da Função Motora Fina, Sensorial e Perceptiva e da Escala de Disgrafia. RESULTADOS: Houve diferença nas tarefas de função motora fina, função sensorial e função perceptiva entre o GI e o GII, com desempenho inferior do GI. Todos os escolares de GI apresentaram disgrafia. CONCLUSÃO: Escolares com Transtorno do Déficit de Atenção com Hiperatividade apresentam desempenho inferior aos escolares com bom desempenho acadêmico em relação às funções motoras fina, sensorial e perceptiva. Tais dificuldades podem causar impacto significativo sobre o desempenho acadêmico, uma vez que comprometem o desenvolvimento da linguagem escrita, ocasionando disgrafia nesses escolares.
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Tendo-se em conta a expectativa de vida cada vez mais alta, vários estudos têm sido desenvolvidos de modo a contribuir para a melhoria da qualidade de vida na terceira idade. Objetivou-se conhecer a opinião dos idosos de um município de porte médio do interior paulista sobre o que é qualidade de vida, através de uma pergunta aberta que foi incluída como parte de um inquérito populacional sobre estilo e qualidade de vida. A análise da referida questão foi realizada através do método de Análise de Conteúdo. Posteriormente calcularam-se as freqüências das categorias obtidas, agrupadas segundo o método de Ward, e em seguida os idosos foram agrupados segundo o método de k-médias. Os resultados indicaram a existência de três grupos de idosos segundo sua definição de qualidade de vida: o primeiro valorizou a questão afetiva e a família; o segundo priorizou a obtenção do prazer e conforto; o terceiro poderia ser sintetizado como o idoso que identifica a qualidade de vida colocando em prática o seu ideário de vida. Sugere-se que, na implementação de ações, se objetive melhorar a qualidade de vida do idoso, levando-se em conta as magnitudes e as diferenças de cada grupo.
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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OBJETIVOS: descrever e comparar o desempenho da coordenação motora fina em escolares com dislexia e com transtorno do déficit de atenção e hiperatividade utilizando parâmetros de desempenho motor e idade cronológica da Escala de Desenvolvimento Motor. MÉTODO: participaram 22 escolaresdo ensino fundamental, de ambos os gêneros, na faixa etária de 6 a 11 anos de idade distribuídos em: GI: 11 escolares com transtorno do déficit de atenção e hiperatividade e GII: 11 com dislexia. Como procedimento, provas de motricidade fina da Escala de Desenvolvimento Motor foram aplicadas. RESULTADOS: os resultados revelaram diferença estatisticamente significante entre a idade motora fina e a idade cronológica de GI e GII. Conforme a classificação da Escala do Desenvolvimento Motor, 90% dos escolares de GI e GII apresentaram desenvolvimento motor fino muito inferior ao esperado para a idade e 10% dos escolares com dislexia apresentam desenvolvimento normal baixo ao esperado para a idade e 10% dos escolares com transtorno do déficit de atenção e hiperatividade apresentaram desenvolvimento inferior ao esperado para a idade. CONCLUSÃO: concluímos que tanto os escolares com dislexia como os com TDAH deste estudo apresentam atrasos na coordenação motora fina, demonstrando que os participantes desta pesquisa apresentam dificuldades em atividades que exijam destreza, quadro característico do transtorno do desenvolvimento da coordenação. Estudos complementares estão sendo conduzidos pelos autores deste estudo para poder verificar e comprovar se o perfil motor fino dos escolares encontrados neste estudo se assemelham ou se diferem de acordo com o quadro apresentado pelos mesmos.
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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The water restriction can damage the performance of crops, especially in the flowering period. Thus, the aim of this research was to evaluate the response of genotypes of wheat submitted to water deficit in the beginning of flowering. The experiment was conducted in greenhouse, in a completely randomized design, in factorial scheme 3 x 2, with five replications. The factors studied were: three wheat cultivars (Coodetec (CD) 105, 108 and 111) and 2 irrigation managements (with and without imposition of water deficit). During the period of water deficit imposition, gravimetric soil moisture and the relative content of water in leaf were evaluated, while at the moment of rehydration the biometric variables were determined. At the end of the crop cycle the components of production were evaluated. Reduction was found in the gravimetric soil moisture, in the relative levels of water and in all biometric variables, in function of the water deficit. The grain production showed difference only among the water regimes, in which the cultivar CD 111 is more efficient in the maintenance of the productive potential in conditions of water deficit, through the quick recovery in the relative content of water in leaves.
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This work reports the separation of phenolic compounds present in the metabolic extract of the lichen Neuropogon aurantiaco-ater (Usniaceae). The crude extract was fractionated by droplet counter-current chromatography using a solvent mixture of high polarity (chloroform:methanol:water at 43:37:20, in ascending mode). The separation resulted in the isolation of usnic and protocetratic acid, which were identified by TLC, HPLC, and NMR tests.
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Neuropsychological disorders are frequently associated with obstructive ventilatory disorders (OVD). Aim: To analyze the incidence of neuropsychological disorders in Brazilian children with OVD, using a screening questionnaire and to compare the answers given before and after surgery. Patients and Methods: We studied 30 children with clinical diagnosis of OVD. The children were divided into 3 groups: group I, children aged 4 to 7; group II, from 8 to 10; and group III, children over 11. The applied questionnaires were answered by the parents or tutors, and comprised 30 questions, 10 for each disorder: attention deficit, hyperactivity and impulsivity. The children were diagnosed with one of the disorders when presented 3 or more positive answers. The follow up interview occurred 6 months after adenotonsillectomy. Results: There was a predominance of male gender (60.6%) over female gender (39.4%). Group II presented the highest number of significant changes, with reductions raging from 87.5% to 33.3% of patients with attention deficit, 75% to 50% of the hyperactive patients, and 50% to 33% of the impulsive patients. Conclusion: There was neuropsychological improvement after the surgery, which occurred mainly in the children from group II. More interaction among health professionals is necessary when diagnosing and following up similar cases.
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The studies were developed with plants of Eucalyptus urograndis under greenhouse conditions, at Paulista State University (UNESP), Botucatu - SP, from March to July, 2005. The objective was to evaluate hydric stress influence on morphological and physiological characteristics of plants in clayay (1) and medium (2) soil texture. Two water treatment were used: -0.03 and -1.5 MPa minimum soil water potentials (□w). Plants from soil 2 and - 1.5MPa showed 43% reduction on leaf área, 34% on base stem diameter, 54% on aerial vegetal dry matter and plants from soil 1 presented 42.3% reduction on leaf área, 39,5% base stem diameter and 42% dry matter root reduction in relation to -0.03 MPa. The lowest leaf water potential (□f) value was-17.166 MPa on □w = -1.5 MPa and soil 2 and the greatest one on soil 1 and □w = -0.03 MPa., -6.766 MPa. The treatment -0.03MPa showed about 11,3% higher transpiration values than those plants from -1.5MPa. The higher Rs value (2.149 s.cm-1) occurred on plants under -1.5MPa and soil 2. There was significant correlation between Tf and Rs, and the treatmens from medium soil were more sensitive, reaching until 32°C.
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Incluye Bibliografía
La evolución del déficit de vivienda en Costa Rica y sus consecuencias para la política habitacional
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Incluye Bibliografía