T3 acutely increases GH mRNA translation rate and GH secretion in hypothyroid rats

Cytoskeleton controls the stability of transcripts, by mechanisms that involve mRNAs and eEF1A attachment to it. Besides, it plays a key role in protein synthesis and secretion, which seems to be impaired in somatotrophs of hypothyroid rats, whose cytoskeleton is disarranged. This study investigated the: eEF1A and GH mRNA binding to cytoskeleton plus GH mRNA translation rate and GH secretion, in sham-operated and thyroidectomized rats treated with T3 or saline, and killed 30 min thereafter. Thyroidectomy reduced: (a) pituitary F-actin content, and eEF1A plus GH mRNA binding to it; (b) GH mRNA recruitment to polysome; and (c) liver IGF-1 mRNA expression, indicating that GH mRNA stability and translation rate, as well as GH secretion were impaired. T3 acutely reversed all these changes, which points toward a nongenomic action of T3 on cytoskeleton rearrangement, which might contribute to the increase on GH mRNA translation rate and GH secretion. (C) 2009 Elsevier Ireland Ltd. All rights reserved.

O processo de construção da identidade do profissional Perito Criminal Federal

Segundo o Código de Processo Penal brasileiro, a Perícia é imprescindível, e não pode ser substituída pela confissão do acusado, nos crimes que deixem vestígios. Esta pesquisa inicia um estudo acerca da construção da identidade profissional do Perito Criminal Federal, o Perito que atua no âmbito da Polícia Federal no Brasil. A abordagem acadêmica foi adotada no sentido de serem identificadas as principais questões que contribuem na construção da identidade desse profissional. O objetivo principal do trabalho é o reconhecimento pelo Perito Criminal Federal do seu papel para a sociedade, de modo que se vislumbrem iniciativas que possam incentivar a busca de melhorias, de aprimoramento na formação e evolução dos profissionais, beneficiando não apenas a motivação e satisfação profissional, mas, sobretudo, a resposta que este produz para a sociedade. O resultado da pesquisa revelou que sua identidade, como a de qualquer profissional, está em constante metamorfose, e sofre a influência de sua história e verdades individuais e das influências do ambiente social e profissional. O estudo demonstrou que existem lacunas a serem preenchidas na visão do próprio profissional com relação ao retorno quanto ao resultado efetivo do seu trabalho, além da preocupação com o equilíbrio entre quantidade e qualidade na produção de Laudos Periciais Criminais. Observou-se ainda a existência de um ambiente organizacional desfavorável quanto ao cumprimento de leis e recomendações, internacionais e nacionais, que preconizam a necessidade de autonomia para a realização do trabalho pericial, de forma a garantir a prova isenta e neutra em busca da justiça. Também ficou nítida a necessidade de maior comunicação e discussão interna acerca da visão de futuro da profissão. É primordial para a efetivação de uma sociedade democrática, que respeita os direitos humanos e zela pela segurança pública, uma Perícia Criminal Federal consciente de sua identidade, efetiva, que possa atuar com motivação, celeridade e qualidade em prol da justiça para os cidadãos brasileiros.

A história do "turismo social" no Serviço Social do Comércio - SP

Este trabalho é fruto de uma investigação realizada no doutorado em História, Política e Bens Culturais do Centro de Pesquisa e Documentação de História Contemporânea do Brasil da Fundação Getulio Vargas - orientada pela profa. Dra. Bianca Freire-Medeiros - acerca da constituição e implementação do turismo social no Serviço Social do Comércio do estado de São Paulo (Sesc-SP), examinando as circunstâncias em que o lazer e as experiências turísticas tornam-se relevantes nas políticas e ações da entidade. Procurou-se entender as transformações e readequações que nortearam as iniciativas da instituição e como as modificações no conceito de turismo social no Brasil e no mundo vêm dialogando com suas diretrizes, posturas e intenções. A metodologia privilegiada na pesquisa foi a história oral temática, no intuito de fazer o registro da história do envolvimento de profissionais com o turismo social do Sesc-SP. Foram realizadas vinte e duas entrevistas com (ex)profissionais e feitas algumas visitas à Biblioteca do departamento nacional do Sesc (Sesc-DN) e ao setor de memória e documentação (Sesc-Memórias) do departamento regional paulista do Sesc, lugares que congregam documentos importantes relacionados à história do turismo na instituição. Espacialmente a pesquisa situa-se no Sesc-SP, repartição atuante e “atenta” às ideias e mudanças envolvendo o turismo social, e representativa na história do fenômeno, no Brasil e no mundo. A circunscrição temporal da pesquisa abarca desde 1979 - ano em que o Sesc de São Paulo passa a desenvolver excursões, passeios e viagens com maior frequência e tenta se aprofundar conceitualmente do turismo social ao se aproximar de órgãos internacionais de relevância política e científica na área - até as ações realizadas em 2013, ano no qual termino a pesquisa de campo e as entrevistas. Durante a trajetória da pesquisa, dialoguei com o período que antecede este recorte, acerca dos empreendimentos do Sesc relacionados as práticas de lazer e turismo, gerando o capítulo 2. Antes, no capítulo 1, tentei reconhecer o lugar do turismo social na história das atividades turísticas no mundo, entendendo-o enquanto oportunidade de efetivação do direito ao lazer. Para alcance dos intentos da tese, como fontes foram utilizados documentos produzidos em âmbito institucional, articulados com a fala dos indivíduos entrevistados, trabalho conjugado especialmente no capítulo 3, em que trago reflexões a respeito do turismo social desenvolvido pelo Sesc-SP. Dentre as análises alvitradas, descrevo a dificuldade encontrada pela entidade ao expandir suas atividades turísticas, vindo a sofrer represálias do setor privado. Deve-se destacar que foi possível perceber a metamorfose conceitual/prática por qual passara o turismo social no Sesc-SP, agregando diferentes conteúdos ao fenômeno e modificando seus processos de trabalho e práticas profissionais. Ressalto ainda o papel ideológico da administração regional do Sesc-SP dentro do Serviço Social do Comércio no Brasil, notadamente na área do turismo. Por fim, envolvo no debate da tese as políticas sociais de turismo, compreendido enquanto possibilidade de lazer.

Femininos de montar - Uma etnografia sobre experiências de gênero entre drag queens

The paper presents a discussion about gender and body in the drag queens experience at Natal city (RN). From the different concepts that characterizes the identity processes on subjects who perform gender transformation (transvestites, transsexuals and female impersonators), the justification for studying the drag character is observed as a means to understand matters that are important when you take such a position. Therefore, there is a need for a linkage between the various concepts responsible for this definition, in addition to considering the historical and cultural process responsible for the creation of such categories, identities and stereotypes among these individuals. In this sense it will be possible to carry out a critical analysis on the different social loads present in each representation, and understand what is at stake in the attribution of classifications and terminologies that are applied to different expressions of metamorphosis. This ethnography considers the debate from a field research conducted at LGBT social establishments and other performance spaces of these people, verifying their dynamics in these places and investigating relationships between performers, personas and characters and also backstage scene in which they participate

Clima urbano e vegetação: estudo analítico e prospectivo do Parque das Dunas em Natal

The present study deals with the relationship between urban vegetation and climate. The process whereby the Parque das Dunas a 1,172 ha green area in the city of Natal, State of Rio Grande do Norte exerts influence on the climate of the city is analyzed. The hypothesis on which the present work rests is that the green area referred to acts upon the climate of the city. The study is based on the analysis of climatic factors and elements of this green area and of the city of Natal. In order to give rise to final recommendations, a methodology grounded on a quantitative and qualitative standpoint has been used. The data were collected both within and without the limits of the Parque das Dunas area. Secondary and primary data resulting from the measurements taken by the researcher and her work group have been used. The aim was to contribute to the understanding of the influence of vegetation on the climate of a city having a warm and humid climate. A historical and environmental characterization of the Parque das Dunas was then sought. The local climatic factors and the elements of the climate have been studied within the scope of the city of Natal. A comparative study between the climatic elements within and without the limits of the Parque das Dunas area from the survey of technical data and the systematization of the information collected has been made, aiming at proposing a set of bioclimatic recommendations for the urban design in Natal. The results of such work allowed for the validation of the important role that the Parque das Dunas plays in the climate of Natal. This has led to the acknowledgement of the relevance of the green areas on the climate of cities. They bring about important benefits to the process of rendering agreeable the climate in the urban environment by providing pleasant microclimates that give a valuable contribution to the environmental comfort of urban nuclei having the same size of Natal

Neustonic distribution of decapod planktonic stages and competence of brachyuran megalopae in coastal waters

Settlement rate may not reflect larval supply to coastal waters in different marine invertebrates and demersal fishes. The importance of near-shore oceanography and behaviour of late larval stages may be underestimated. The present study conducted neustonic sampling over station grids and along full-length transects at two embayments in south-eastern Brazil to (1) compare diurnal and nocturnal occurrence of most frequent decapod stages to assess their vertical movements, (2) describe the formation of larval patches and (3) measure competence of crab megalopae according to their distance to recruitment grounds. Several shrimp species apparently undergo a diel vertical migration, swimming crab megalopae showed no vertical movements and megalopae of the intertidal crab Pachygrapsus transversus revealed a reversed vertical migration. During the day, crab megalopae aggregated in convergence zones just below surface slicks. These larvae consisted of advanced, pre-moult stages, at both mid-bay and near-shore patches. Competence, measured as the time to metamorphosis in captivity, was similar between larval patches within each taxon. Yet, subtidal portunids moulted faster to juveniles than intertidal grapsids, possibly because they were closer to settlement grounds. Megalopae of Pachygrapsus from benthic collectors moulted faster than those from bay areas. These results suggest that alternative vertical migration patterns of late megalopae favour onshore transport, and actual competence takes place very close to suitable substrates, where larvae may remain for days before settlement. Lack of correlation between larval supply and settlement for Pachygrapsus suggests that biological processes, besides onshore transport, may play an important role in determining settlement success of coastal crabs.

Physiological response of American bullfrog tadpoles to stressor conditions of capture and hypoxia

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Effect of nitrite on larval development of giant river prawn Macrobrachium rosenbergii

The effects of ambient nitrite concentrations on larval development of giant river prawn Macrobrachium rosenbergii were evaluated. The trials were conducted in two phases: phase 1, larvae from stages I through VIII and phase 2, larvae from stage VIII until post-larvae. In both phases larvae were kept in water with nitrite (NO2-N) concentrations of 0, 2, 4, 8 and 16 mg/L. Oxygen consumption was analyzed for larvae in stage II at nitrite concentrations of 0, 4, and 8 mg/L. Survival, weight gain, larval stage index and metamorphosis rate decreased linearly with increasing ambient nitrite concentration. However, there was no significant difference between larvae subjected to 0 and 2 mg/L NO2-N. In phase 1, there was total mortality at 16 mg/L NO2-N, while in phase 2 larval development stopped at stage X in this treatment. The oxygen consumption in stage II increased significantly at NO2-N concentration from 0 to 4 mg/L, but there was no difference between 4 and 8 mg/L NO2-N. In conclusion, increasing ambient nitrite up to 16 mg/L NO2-N delays larval development, reduces larval growth rate and causes mortality, whereas no significant effect occurs for levels below 2 mg/L NO2-N. However, the establishment of a general safe level of nitrite to M rosenbergii hatchery may be difficult due to the great variability in larvae individual sensitivity. (c) 2006 Elsevier B.V. All rights reserved.

Effect of density on population development in the Amazon River prawn Macrobrachium amazonicum

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Co-feeding of live feed and inert diet from first-feeding affects Artemia lipid digestibility and retention in Senegalese sole (Solea senegalensis) larvae

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Ontogenetic Variation in Ammonia Excretion during the Early Life Stages of the Amazon River Prawn, Macrobrachium amazonicum

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Universo encantado do cuidado na autopoiese docente: uma viagem epistemológica transdisciplinar

The health transition experienced in Brazilian health care model requires a metamorphosis in human and society, placing new demands on health and education. The Faculty of Science, Culture and Extension of Rio Grande do Norte (Facex), aware of their responsibilities to the Health System, which brings the principle of comprehensiveness as its structural axis, dared to implement a course of nursing in complex thinking and Experiential Pedagogy Humanescente with curriculum inter / transdisciplinary. For deployment of proprosta was not enough to reform thinking of educators, there was a need corporalizar new teaching practices that are aimed at the integral formation of human beings. In this context, emerged the workshop on Human Education autopoietic, self-forming area of the educator, where he developed an Action Research Existential (PA-E) which enabled experience, describe and analyze how the human autopoietic educators could contribute to the practice educational humanescente transdisciplinary curriculum project. Were worked out in meetings, knowledge necessary to practice the transdisciplinary 1st Meeting - learn to create; 2nd Meeting - learn to recognize the laws of nature with emphasis on complexity theory, 3rd Meeting - learn to organize, 4th meeting - namely autoestruturar themselves; 5th Meeting - know how to choose, 6th Meeting - knowing innovate 7th Meeting - namely exchange. Next an autobiographical perspective, we chose the metaphorical possibility to narrate the ways and strategies covered by the author and apprentice in the company of the Little Prince de Saint-Exupery, in search of a sensible pedagogical practice complex, which promotes re-enchant transdisicplinar education. The route involved five methodological connections: a literature review which relate to training for care in undergraduate nursing: the study of learning processes that drive the formation humanopoiética, emphasizing the relationship that involves the complexity and embodiment in the educational process transdisciplinary, highlighting the analysis of what is to learn from the findings of biosciences and recent cognitive theories of Maturana and Varela, the description of the interdisciplinary curriculum of the nursing course of Facex and Training Workshop, Human autopoietic, with emphasis on Experiential Education Humanescente; the report of seven meetings of the Workshops (cocoon), recording the experiences and listening to educators (luminescent butterflies), the final reflections with learning opportunized. Experientiality lived through, the expressions and words, educators say the influence of workshops for their teaching practices, highlighting it as a space for selforganizing, creating, learning and enchantment, and can identify the workshop as a place of transformation necessary for deployment an interdisciplinary curriculum. The knowledge emerging from the study indicate the need for permanent spaces of self, in which the educator learns from its body, between cognitive processes and vital, and in the experiences of their formative process the opportunity to act on the dimensions of knowing and being

Uma ação reflexiva sobre o processo de (re)escrita de textos: a prática pedagógica da professora Maria

T he reflexive action on the process of texts (re)writing, central topic of this study, is still a challenge within the elementary school. What made this issue a special theme of study was the fact that the chosen focus is based on a lived experiences with (re) writing activities where the uniqueness of the professional practice would be transformed into a place of knowledge production, offering theoretical and a practical support to a teacher, in order to understand the interactive nature of language as a space for recovery of the individual (as a historical, social, and cultural being). The empirical field research, structured in the light of assumptions of qualitative research into the action research format, was a public school in Bahia, in a third grade classroom. The instruments of data collection were open questionnaire, semistructured interviews, observations with video recording, documentary analysis of texts produced by students, and reflective sessions. The objectives that supported the research study were: 1) Investigate, in the pedagogical action of teacher Maria, activities on the writing process, 2) Interact with the teacher, in the form of action inquiry to: a) reflect on the procedures for theoretical and methodological development of reflective practice on the process of the (re) writing of the text, b) intervene in the construction of didactic situations that enable the learning and the development of reflexive actions in the (re) writing of texts. To accomplish these goals, it was established as a commitment a dialogic communication with the protagonist, providing reflection sessions so she could examine her teaching practices. The most relevant theoretical arguments to the establishment of this research came from the theoretical and methodological approaches of Bakhtin s theory of enunciation-discourse (2003, 2004) and Vygotsky s socio-interactionist theory (1989, 1998), as it is believed that both theories, through a paradigm shift, in which the constitution of the individual and the participation of others in the actions of analysis and reflection on the language, would give opportunities for internalization and construction of knowledge. The systematic and critical pondering led the participating teacher into reviewing her teaching praxis, compelling her to promote a more insightful understanding of the writing process of her students. That experirence brought into evidence three categories of actions: 1) actions that reflect the technical rationalism, 2) actions that reflect an emancipatory metamorphosis, and 3) actions that reflect empowerment and awareness. The results confirm that the action / reflection on the process of the (re) writing of a text has a dimension of increasing levels of awareness and self criticism, reproducing other meanings for teaching praxis

Mala na mão, pé na estrada: à procura de uma pedagogia das singularidades

We make many journeys during our lifetime. In each of them we accumulate experiences that result in an amount of knowledge that constitutes our history. The dissertation presents one of these journeys: that one I took along with students of Pedagogia da Terra project from Universidade do Estado do Rio Grande do Norte UERN to think about the knowledge within their memories in their way from countryside to city seeking for education. I used as main references to this task the ideas of Edgar Morin about Method as Strategy, implication of the subject in knowledge, pertinent knowledge, and knowledge reconnection. And from Paulo Freire I used the concepts of cultural identity assumption and dialog. I built as resource of method the metaphor of the suitcase, called by me the trunk of memory treasures . The use of this cognitive operator makes possible for those students bring their memories to the surface and share them collectively, by the process I name as auto-social- biographical narratives. The explicitness of the memories they choose to reveal by means of these narratives permitted me to understand the metamorphosis of these knowledge since their childhood to nowadays. In order to present an archeology of knowledge within these life histories I chose a narrative writing style concerned with simplicity and lightness, where I use the description of facts and discussions occurred during this journey. My main arguments in systematizing this experience are: scientific production can and should be grounded on knowledge diversity and on a more sensible approach to phenomena; education and pedagogy need to take as starting point and fuel for their practices the singularities of the subjects, their life history, educational background and knowledge resulting from both. Teacher s formation programs which students have mixed, rural and urban, background should value cognitive experiences built in the interaction with that knowledge closer of a sensible logic, deeper grounded in land and nature. Doing so, education can contribute to join diverse knowledge against monocutural forms of thinking and educational practices

Nucleus isthmi and control of breathing in amphibians

Despite recent advances, the mechanisms of neurorespiratory control in amphibians are far from understood. One of the brainstem structures believed to play a key role in the ventilatory control of anuran amphibians is the nucleus isthmi (NI). This nucleus is a mesencephalic structure located between the roof of the midbrain and the cerebellum, which differentiates during metamorphosis; the period when pulmonary ventilation develops in bullfrogs. It has been recently suggested that the NI acts to inhibit hypoxic and hypercarbic drives in breathing by restricting increases in tidal volume. This data is similar to the influence of two pontine structures of mammals, the locus coeruleus and the nucleus raphe magnus. The putative mediators for this response are glutamate and nitric oxide. Microinjection of kynurenic acid (an ionotropic receptor antagonist of excitatory amino acids) and L-NAME (a non-selective NO synthase inhibitor) elicited increases in the ventilatory response to hypoxia and hypercarbia. This article reviews the available data on the role of the NI in the control of ventilation in amphibians. (C) 2004 Elsevier B.V. All rights reserved.