963 resultados para Intenção de turnover
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Introdução: Estimativas recentes apontam para que cerca de 20% das crianças e adolescentes sejam afetados por problemas de saúde mental com expressão antes dos 18 anos de idade. Esta suscetibilidade dos adolescentes está associada a uma forte relutância e a atrasos na procura de ajuda profissional que podem não só agravar o problema, como comprometer o seu potencial de desenvolvimento em todas as áreas (Loureiro, 2013; Jorm, 2014). A intenção de procura de ajuda em saúde mental é uma variável importante, sendo determinada por fatores individuais (e.g. crenças pessoais, normas de género internalizadas, estratégias de coping, autoeficácia, resiliência, estigma) e sociais (e.g. acessibilidade e apoio social) que influenciam as atitudes da pessoa no sentido da procura ou evitamento da ajuda (Rosa, Loureiro e Sousa, 2014). Objetivos: Avaliar o efeito da idade, género e tipo de perturbação na intenção de procurar ajuda em saúde mental. Metodologia: Estudo quantitativo de nível II, descritivo e correlacional. Utilizou-se uma amostra de 757 adolescentes (59,8% raparigas e 40,2% rapazes), com idades compreendidas entre os 10 e os 18 anos (média = 14,33, DP = 2,19). A colheita de dados foi realizada entre maio e junho de 2014, utilizando-se como instrumento a Mental Health Literacy Scale (MentaHLiS). Realizou-se análise descritiva e para a comparação entre os grupos recorreu-se ao teste qui-quadrado. Resultados: Os resultados revelam uma associação com significado estatístico entre a intenção de procurar ajuda e as variáveis 'tipo de perturbação' (p = 0,029) e 'idade' (p < 0,001). No que respeita ao tipo de perturbação, a intenção de procurar ajuda surge associada sobretudo à depressão e ao abuso de álcool. Relativamente à idade, são os mais jovens (10-14 anos) que revelam uma maior intenção em procurar ajuda. O género não apresenta um efeito estatisticamente significativo (p = 0,817). Conclusões: Os resultados permitem-nos concluir, contrariamente ao que acontece com outros estudos, que o género dos adolescentes não é uma variável associada à intenção de procurar ajuda. Por outro lado, reforçam a ideia de que existem múltiplos determinantes que contribuem para os trajetos no processo de procura de ajuda, sendo o tipo de perturbação e a idade, dois fatores que, apesar de pouco estudados, deverão ser considerados.
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O adolescente que tem um comportamento autolesivo sem intenção suicida está em sofrimento psíquico, as raparigas estão em maior número e são também elas que associam mais que um comportamento. Os resultados também demonstram que estes comportamentos são mais frequentes nas raparigas, num total de 79% da população em estudo. As mães são quem mais acompanha o filho ao hospital.
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Uncoupling protein one (UCP1) is a mitochondrial inner membrane protein capable of uncoupling the electrochemical gradient from adenosine-5'-triphosphate (ATP) synthesis, dissipating energy as heat. UCP1 plays a central role in nonshivering thermogenesis in the brown adipose tissue (BAT) of hibernating animals and small rodents. A UCP1 ortholog also occurs in plants, and aside from its role in uncoupling respiration from ATP synthesis, thereby wasting energy, it plays a beneficial role in the plant response to several abiotic stresses, possibly by decreasing the production of reactive oxygen species (ROS) and regulating cellular redox homeostasis. However, the molecular mechanisms by which UCP1 is associated with stress tolerance remain unknown. Here, we report that the overexpression of UCP1 increases mitochondrial biogenesis, increases the uncoupled respiration of isolated mitochondria, and decreases cellular ATP concentration. We observed that the overexpression of UCP1 alters mitochondrial bioenergetics and modulates mitochondrial-nuclear communication, inducing the upregulation of hundreds of nuclear- and mitochondrial-encoded mitochondrial proteins. Electron microscopy analysis showed that these metabolic changes were associated with alterations in mitochondrial number, area and morphology. Surprisingly, UCP1 overexpression also induces the upregulation of hundreds of stress-responsive genes, including some involved in the antioxidant defense system, such as superoxide dismutase (SOD), glutathione peroxidase (GPX) and glutathione-S-transferase (GST). As a consequence of the increased UCP1 activity and increased expression of oxidative stress-responsive genes, the UCP1-overexpressing plants showed reduced ROS accumulation. These beneficial metabolic effects may be responsible for the better performance of UCP1-overexpressing lines in low pH, high salt, high osmolarity, low temperature, and oxidative stress conditions. Overexpression of UCP1 in the mitochondrial inner membrane induced increased uncoupling respiration, decreased ROS accumulation under abiotic stresses, and diminished cellular ATP content. These events may have triggered the expression of mitochondrial and stress-responsive genes in a coordinated manner. Because these metabolic alterations did not impair plant growth and development, UCP1 overexpression can potentially be used to create crops better adapted to abiotic stress conditions.
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The aim of this work is to obtain, purify and characterize biochemically a peroxidase from Copaifera langsdorffii leaves (COP). COP was obtained by acetone precipitation followed by ion-exchange chromatography. Purification yielded 3.5% of peroxidase with the purification factor of 46.86. The COP optimum pH is 6.0 and the temperature is 35 ºC. COP was stable in the pH range of 4.5 to 9.3 and at temperatures below 50.0 ºC. The apparent Michaelis-Menten constants (Km) for guaiacol and H2O2 were 0.04 mM and 0.39 mM respectively. Enzyme turnover was 0.075 s-1 for guaiacol and 0.28 s-1 for hydrogen peroxide. Copaifera langsdorffii leaves showed to be a rich source of active peroxidase (COP) during the whole year. COP could replace HRP, the most used peroxidase, in analytical determinations and treatment of industrial effluents at low cost.
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We estimate litter production and leaf decomposition rate in a cerradão area, physiognomy little studied and very threatened in São Paulo State. During the period of study, litter production was 5646.9 kg.ha-1.year-1, which the 'leaf' fraction corresponded to 4081.2 kg.ha¹.year¹; the 'branch' fraction, to 1066.1 kg.ha-1.year-1; the 'reproductive structures' fraction, to 434.1 kg.ha-1.year-1; and the 'miscellaneous' fraction to 65.5 kg.ha-1.year-1. Litter production was highly seasonal and negatively correlated with relative humidity and air temperature. Leaf production was negatively correlated with relative humidity, rainfall, and air temperature. There was no significant difference between litter production found in this study and those in two other sites with cerradão and semideciduous forest, but these physiognomies differed significantly from the cerrado sensu stricto. Leaf decomposition rate (K) was 0.56. Half-life of the decomposing material was 1.8 years and turnover time was 2.3 years.
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The article presents studies of a current investigation among 75 adolescents from 12 to 15 years old, students of private schools of Campinas city, that have as main objective to notice a possible correspondence among the moral judgments and the representation that individuals have about themselves. From a questionnaire, the studies bring out the representations of these individuals and answer a questioning if they would have an ethical character or not and if these individuals would correspond to their moral judgments. The results point out to a correspondence among those whose self representations are characterized by more evolved ethical contents and judgments related to sensitivity and to the characters feelings involved in the situations described. Such studies validate the intention of this article to discuss the correspondences between ethics (how the individual sees himself/herself) and moral (how he/she judges the situations moral).
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Klopfer's differentiation of movement scores, among which inanimate movement integrating the minor movements group, was no doubt opportune and needed. Their peculiar meaning has been clearly stressed and enriched by Piotrowski in his reformulation of Rorschach variables. It is our belief that Rorschach himself would take such step. Our criteria for scoring this determinant are somewhat different of both Klopfer's and Piotrowski's. On the one hand, masks, facial traits, emotional expressions, body parts in motion are not entered there. On the other, we score as such human or animal movement, provided this does not originate in the blot shape directly, but in the subjective reaction against the sensed muscular tension. Basic requirement for this scoring is the kinesthetic component, as for Mever since Rorschach's elaboration; and common trait distinctive for any response to be so scored ? be it an abstraction, an inanimate object, an animal or human being ? must be the subjective way of feeling the movement: (a) intention, blocking, struggle for achieving, for instance, or (b) activity of nature elements. Due to this subjective meaning we use the symbol m'intead of mfor this category. We already find these two kinds (a) and (b) of movement responses in Rorschach's text, respectively in the Examplesand in his posthumous Contribution.Either may point to a flight from emotional stress or to outstanding mental ability.
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Universidade Estadual de Campinas . Faculdade de Educação Física
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Universidade Estadual de Campinas . Faculdade de Educação Física
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Universidade Estadual de Campinas. Faculdade de Educação Física
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Universidade Estadual de Campinas. Faculdade de Educação Física
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Universidade Estadual de Campinas . Faculdade de Educação Física
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Universidade Estadual de Campinas. Faculdade de Educação Física
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Universidade Estadual de Campinas. Faculdade de Educação Física
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Universidade Estadual de Campinas . Faculdade de Educação Física