Projecte d’un focus amb dos moviments de gir

Disseny d'un focus amb dos moviments de gir , un horitzontal (PAN) i un altre d’inclinació (TILT). Del tipus Spot. Amb una làmpada 250 W i que la seva funció sigui il·luminar locals o espectacles de dimensions grans

Educação ambiental – caminhos traçados e práticas escolares na Escola Municipal Raimundo Ribeiro de Souza no Município de Jacundá – Pará

O presente trabalho objetivou realizar um estudo sobre as práticas escolares desenvolvidas na Escola Raimundo Ribeiro de Sousa no Município de Jacundá, no Estado do Pará, para perceber o modo como a Educação Ambiental vem sendo trabalhada pelos professores e alunos do Ensino Fundamental. Para tanto, utilizou-se instrumentos como entrevistas e questionários com os professores que trabalham na escola, com destaque para os projetos que envolvem a Educação Ambiental com as principais atividades desenvolvidas, as experiências vivenciadas, os materiais utilizados, as metodologias empregadas, e os parceiros nessas atividades, bem como identificou-se as concepções de Educação Ambiental presente no cotidiano dos professores. A pesquisa caracterizou-se como sendo de cunho qualitativo. Pôde-se constatar que a Educação Ambiental vem sendo incorporada pela escola de maneira fragmentada, superficial, isolada e descontínua, portanto, contribuindo pouco para uma educação escolar que almeje ser crítica, transformadora e emancipatória em relação ao meio ambiente.

Responsabilidade social nas organizações : Avaliação das motivações no desenvolvimento e implementação de práticas socialmente responsáveis

A presente dissertação consiste num trabalho de investigação, descritivo e exploratório, cujo objetivo foi abordar o conceito de responsabilidade social, enfatizando a sua vertente organizacional. Teve como principal desafio, por um lado, compreender a dinâmica da implementação de medidas socialmente responsáveis por parte das organizações, por outro lado, avaliar as motivações das organizações no que respeita às práticas de responsabilidade social. Com base no estudo de caso realizado, concluiu-se que na organização estudada a adoção de políticas socialmente responsáveis está diretamente relacionada com o seu modelo de gestão, que é baseado na sua visão, missão e valores. Com o culminar deste trabalho, pode-se aferir que as organizações cuja gestão é baseada em valores estão mais comprometidas com o desenvolvimento sustentável.

Violência em escolas públicas do estado da Paraíba : impacto do projeto “Escola que Protege”

A presente pesquisa tem por finalidade investigar com os participantes do Projeto “Escola que Protege” quais as violências mais comuns registradas nas escolas e o impacto deste nas atividades desenvolvidas nas escolas no combate à violência. A violência contra a criança e o adolescente representa, atualmente, um grave problema de saúde pública no mundo e a escola é o ambiente frequentado diariamente pelas crianças, por isso torna-se um local de extrema e fundamental importância para o seu crescimento e desenvolvimento, interferindo diretamente em sua postura e comportamento futuros. Optamos por uma pesquisa qualitativa, que por meio das entrevistas pudéssemos verificar o entendimento dos sujeitos desta investigação sobre a violência escolar e a repercussão do Projeto “Escola que Protege” no município. E, ao analisá-las, concluiu-se que as violências mais comuns existentes nos municípios pesquisados não são diferentes das encontradas nas outras regiões do país, onde existe o trabalho infantil, casos de violência doméstica, bullying, além do abuso sexual, que também acomete as crianças destes municípios. Detectamos por fim que o Projeto Escola que Protege, conseguiu alcançar resultados positivos em todos os municípios pesquisados, levando informações importantes aos educadores, capacitando-os para a resolução ou o encaminhamento dos casos de violência infantil detectadas no âmbito escolar.

Using learning networks to understand complex systems: a case study of biological, geophysical and social research in the Amazon

Developing high-quality scientific research will be most effective if research communities with diverse skills and interests are able to share information and knowledge, are aware of the major challenges across disciplines, and can exploit economies of scale to provide robust answers and better inform policy. We evaluate opportunities and challenges facing the development of a more interactive research environment by developing an interdisciplinary synthesis of research on a single geographic region. We focus on the Amazon as it is of enormous regional and global environmental importance and faces a highly uncertain future. To take stock of existing knowledge and provide a framework for analysis we present a set of mini-reviews from fourteen different areas of research, encompassing taxonomy, biodiversity, biogeography, vegetation dynamics, landscape ecology, earth-atmosphere interactions, ecosystem processes, fire, deforestation dynamics, hydrology, hunting, conservation planning, livelihoods, and payments for ecosystem services. Each review highlights the current state of knowledge and identifies research priorities, including major challenges and opportunities. We show that while substantial progress is being made across many areas of scientific research, our understanding of specific issues is often dependent on knowledge from other disciplines. Accelerating the acquisition of reliable and contextualized knowledge about the fate of complex pristine and modified ecosystems is partly dependent on our ability to exploit economies of scale in shared resources and technical expertise, recognise and make explicit interconnections and feedbacks among sub-disciplines, increase the temporal and spatial scale of existing studies, and improve the dissemination of scientific findings to policy makers and society at large. Enhancing interaction among research efforts is vital if we are to make the most of limited funds and overcome the challenges posed by addressing large-scale interdisciplinary questions. Bringing together a diverse scientific community with a single geographic focus can help increase awareness of research questions both within and among disciplines, and reveal the opportunities that may exist for advancing acquisition of reliable knowledge. This approach could be useful for a variety of globally important scientific questions.

Six new loci associated with body mass index highlight a neuronal influence on body weight regulation

Common variants at only two loci, FTO and MC4R, have been reproducibly associated with body mass index (BMI) in humans. To identify additional loci, we conducted meta-analysis of 15 genome-wide association studies for BMI (n > 32,000) and followed up top signals in 14 additional cohorts (n > 59,000). We strongly confirm FTO and MC4R and identify six additional loci (P < 5 x 10(-8)): TMEM18, KCTD15, GNPDA2, SH2B1, MTCH2 and NEGR1 (where a 45-kb deletion polymorphism is a candidate causal variant). Several of the likely causal genes are highly expressed or known to act in the central nervous system (CNS), emphasizing, as in rare monogenic forms of obesity, the role of the CNS in predisposition to obesity.

Quartz recrystallization regimes, c-axis texture transitions and fluid inclusion reequilibration in a prograde greenschist to amphibolite facies mylonite zone (Ribeira Shear Zone, SE Brazil)

The crystal-plastic behavior of quartz mylonites from the Ribeira Shear Zone (SE Brazil), a major strike-slip structure that was active during a prograde metamorphic phase related to the Neoproterozoic Brasiliano-Pan African Orogeny, was investigated using a multi-method approach. Geothermobarometry results indicate deformational conditions ranging from similar to 300 to similar to 630 degrees C and 500-700 MPa. A strong correlation between mapped metamorphic zones and a dominance of different dynamic recrystallization mechanisms of quartz occurs within the mylonite zone. Bulging recrystallization (BLG) dominates within the chlorite zone between 300 and 410 degrees C, subgrain rotation recrystallization (SGR) operates within the biotite zone from 410 to 520 degrees C, and grain boundary migration recrystallization (GBM) dominates in the garnet zone above 520 degrees C. The development of quartz c-axis textures is mainly governed by temperature and dynamic recrystallization mechanisms. Textures from BLG zone mylonites are characterized by maxima around Z; SGR zone mylonites display single girdles or asymmetric type I crossed girdles; and GBM zone mylonites comprise maxima around Y and intermediate between X and Z. The scarcity or absence of water-bearing fluid inclusions in quartz mylonites from the SGR and GBM zones, which are dominated by carbonic inclusions, suggests water-deficient conditions, whereas BLG zone mylonites are dominated by water-bearing inclusions. This evidence indicates that water was available in the protoliths but has been eliminated with increasing deformation and deformation temperature. No effect of the water content variation on the quartz microstructural and recrystallized grain size evolution was detected, and little influence on c-axis texture development was observed. Most of the fluid inclusion densities were reequilibrated during the shear zone exhumation history, recording a decompression in the range of 300-500 MPa, while microstructural reequilibration effects related to the prograde metamorphism are largely preserved. Fluid inclusion microstructures and densities from two SGR zone samples preserved evidence for a near isothermal compression within the interior of the Ribeira Shear Zone during the prograde metamorphism. (C) 2009 Elsevier B.V. All rights reserved.

Mineralogical and microthermometric studies and structural aspects of imperial topaz mineralization in Antonio Pereira, Ouro Preto District (Minas Gerais) - Brazil

The occurrences of imperial topaz in the Antonio Pereira mine, Ouro Preto, Minas Gerais, are associated with the metamorphic carbonate rocks of the Minas Supergroup. The crystals have densities varying from 3.46 to 3.58. The parameters of the unitary cells obtained were: 4.658 to 4.663 angstrom (ao), 8.823 to 8.832 angstrom (b(o)), 8.382 to 8.389 angstrom (c(o)), and 344.65 to 345.46 angstrom 3 (V). The refraction indices presented the following variations: 1.622 to 1.630 (nX), 1.624 to 1.632 (nY), 1.633 to 1.640 (nZ), and 0.008 to 0.011 (B). These properties are coherent with the low fluorine contents obtained (16,48%/17,05wt%). Infrared spectroscopy and microthermometry showed that the fluid inclusions, which represent the mineralizing fluids, are formed by H(2)O (with Ca(2+), Mg(2+) and Na(+)), and CO(2) +/- CH(4). The minimal trapping T-P conditions of 290/320 degrees C and 2,349/2,497bar were obtained for the primary fluid inclusions. The pseudo-secondary fluid inclusions were trapped at conditions of lower temperatures and variable pressures, during the deformation process under local alternating states of stress. The microthermometric studies, the structural analysis and the fluorine contents suggest that the mineralized veins were formed from hydrothermal fluids originated during the Brasiliano tectono-metamorphic event.

NEW CHARACTERIZATIONS OF COMPLETE SPACELIKE SUBMANIFOLDS IN SEMI-RIEMANNIAN SPACE FORMS

In this paper we study n-dimensional complete spacelike submanifolds with constant normalized scalar curvature immersed in semi-Riemannian space forms. By extending Cheng-Yau`s technique to these ambients, we obtain results to such submanifolds satisfying certain conditions on both the squared norm of the second fundamental form and the mean curvature. We also characterize compact non-negatively curved submanifolds in De Sitter space of index p.

A FREE BOUNDARY ISOPERIMETRIC PROBLEM IN HYPERBOLIC 3-SPACE BETWEEN PARALLEL HOROSPHERES

We investigate the isoperimetric problem of finding the regions of prescribed volume with minimal boundary area between two parallel horospheres in hyperbolic 3-space (the part of the boundary contained in the horospheres is not included). We reduce the problem to the study of rotationally invariant regions and obtain the possible isoperimetric solutions by studying the behavior of the profile curves of the rotational surfaces with constant mean curvature in hyperbolic 3-space. We also classify all the connected compact rotational surfaces M of constant mean curvature that are contained in the region between two horospheres, have boundary partial derivative M either empty or lying on the horospheres, and meet the horospheres perpendicularly along their boundary.

1988 Yearbook

Vol. 7; Sept. 1988; 109 p. b&w, color photographs TOC: Life at LaGuardia…2 / Activities and Events…17 / Faculty and Staff…33 / Activities at LaGuardia…49 / Graduation…71 Yearbook Committee Credits: Faculty Advisor, Vincent Banrey; Project Director, Catherine Whan; Editors: Alexandra Gomez, Juan Jimenez, GloryAnn Torres; Asst. Editor, Kenny Rosa; LAYOUT: Vincent Banrey, Marino "Tito" Cabrera, Shirley Chance, George Condors, Milton Ferreira, Maria Flores, Alexandra Gomez, Ana Lisa Gonzalez, Bernadette Henry, Juan Jimenez, Alejandro Meneses, Richard Provost, Kenny Rosa, Maria Sanchez, GloryAnn Torres, Catherine Whan, Alan O. Young; PHOTOGRAPHY: Peter Abbate, Sandra Acres, Young Baek Choi, Randy Fader Smith, Milton Ferriera, Alexandra Gomez, Juan Jimenez, Seymour Lerman, Chuck Lindsey, Victoria Pamias, Richard Provost, Alan Scribner, Frank Tocco, GloryAnn Torres, Catherine Whan. ART: Jose Marti (Cover Design and Division Pages); Martin Carrichner, Jose Marti (Endsheet Design), Arnold Escalera, Jacqui Fernandez, Richard Massey, Alejandro Meneses; WRITING: Anthony Archer, Alexandra Bastidas, Joie Fadde, Alexandra Gomez, Ana Lisa Gonzalez, Doreen Hansen, Bernadette Henry, Sarah Hudson, Juan Jimenez, Donna Libert, Cathy Passiglia, Jody Pincus, Richard Provost, Kenny Rosa, Maria Sanchez, Alan Scribner, Christiana Sommerville, GloryAnn Torres, Catherine Whan, Alan O. Young; SPECIAL THANKS: Blanca Arbito, Classic Studios, Edward Hollins, Umoja Kwanguvu, Kelly Johnson and the LaGuardia Archives, Andrew Saluga and Recreation Staff, Ted Schiffman of Taylor Publishing.