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Search Results: 1 - 10 of 135983 matches for " Margarete V.;Nascimento "
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Composi??o, abundancia e notas sobre a ecologia de espécies de larvas de lepidópteros associadas a cinco espécies de plantas hospedeiras no Parque Nacional da Restinga de Jurubatiba, RJ
Monteiro, Ricardo F.;Macedo, Margarete V.;Nascimento, Milena de S.;Cury, Rafael S. F.;
Revista Brasileira de Entomologia , 2007, DOI: 10.1590/S0085-56262007000400012
Abstract: in order to describe the species composition, temporal occurrence and ecological aspects of larvae associated with five plant species: erythroxylum ovalifolium and e. subsessile (erythroxylaceae), manilkara subsericea (sapotaceae), protium icicariba and p. heptaphyllum (burseraceae), 1.680 plants were bimonthly surveyed from july of 2003 to august of 2005 in the parque nacional da restinga de jurubatiba (pnrj). thirty two species of lepidoptera were reared from these five host plants, and the most abundant four species belonged to the elachistidae. manilkara subsericea showed the greatest number of lepidoptera species associated, 14 species, followed by e. ovalifolium (10 species), p. icicariba (seven species), e. subsessile (six species) and p. heptaphyllum (two species). only one out of the 32 species of lepidoptera was gregarious and 56% used any kind of shelter to get food or for defence. six lepidoptera species (27%) were polyphagous, three (14%) oligophagous and 13 (59%) had just only one host plant species recorded. the most abundant species of moths exhibitted two reproductives periods in the year, predominantly in winter and autumn. abiotic factors, such as strong insolation during spring and summer in the open scrub vegetation of restinga, may be very important in producing this temporal pattern of insect reproduction, but we cannot neglect biotic factors like natural enemies.
Modelos MLG e MAG para análise da associa??o entre polui??o atmosférica e marcadores de morbi-mortalidade: uma introdu??o baseada em dados da cidade de S?o Paulo
Concei??o, Gleice Margarete de Souza;Saldiva, Paulo Hilário Nascimento;Singer, Julio da Motta;
Revista Brasileira de Epidemiologia , 2001, DOI: 10.1590/S1415-790X2001000300007
Abstract: in this study, we have described and compared two classes of models - the generalized linear models (glm) and the generalized additive models (gam) _ which can be used to evaluate the association between atmospheric pollution and morbidity and mortality counts. we consider gam as an alternative for modeling unspecific nonlinear relationships, and show that this class of models constitute a good option to represent both seasonality and the relation between the outcome and the meteorological variables. as an illustration, we evaluate the association between mortality in elderly people and air pollution in s?o paulo, brazil for the period ranging from 1994 to 1997. the two modeling classes have produced coherent results, but the most sophisticated models were more powerful to detect significant effects. associations between mortality and the levels of co, so2 and, in to a lesser extent, pm10 were observed.
Preda??o de sementes de Allagoptera arenaria (Gomes) O'Kuntze (Arecaceae) por Pachymerus nucleorum Fabricius (Coleoptera, Chrysomelidae, Bruchinae)
Grenha, Viviane;Macedo, Margarete V. de;Monteiro, Ricardo F.;
Revista Brasileira de Entomologia , 2008, DOI: 10.1590/S0085-56262008000100009
Abstract: seed predation on allagoptera arenaria (gomes) o'kuntze, 1891(arecaceae) palm by pachymerus nucleorum fabricius, 1972 was evaluated from september 2003 to september 2005 at the parque nacional da restinga de jurubatiba (pnrj), rio de janeiro, brazil. the biology and behaviour of p. nucleorum on a. arenaria and predation rates were described. fruits found beneath 50 palms were collected, monthly, for each one of the two sampled areas at pnrj (ridge forest and clusia sclthdl (clusiaceae) open shrubland formation). the evaluation of preyed fruits was done by counting exit holes of bruchinae in the field, the emergence of these insects in the laboratory and from fruits dissected. it was verified that pachymerus nucleorum oviposit on young developing infrutescences, different from literature records for other palm species, for which oviposition takes place on the fruit already on the ground. fruit predation by p. nucleorum was 29.3% at ridge forest and 20.6% at clusia open shrubland formation. the life cycle of p. nucleorum was long and with wide range of variation within samples, what suggests a possible diapause in some stage of life cycle.
Estudo de gases quanticos em uma rede óptica utilizando aproxima??o variacional
Nascimento, V.A.;
Revista Brasileira de Ensino de Física , 2011, DOI: 10.1590/S1806-11172011000200006
Abstract: we investigate the solution of a mean-field-hydrodynamic equation using variational approximation with the aim of study the formation of fundamental gap solitons in a bose gas and in a degenerate fermi gas when trapped by one transversal potential and a single-periodic one-dimensional optical lattice. by variational approximation we study the possibility that the effective nonlinearity or interaction coefficient acting in combination with the potential of the optical lattice which allows the appearance of solitons in different dimensions presenting a peculiar behavior in function of the chemical potential.
Inibi??o da corrente de cálcio tipo L por tramadol e enanti?meros em miócitos cardíacos de ratos
Medei, Emiliano;Raimundo, Juliana M.;Nascimento, José Hamilton M.;Trachez, Margarete M.;Sudo, Roberto T.;Zapata-Sudo, Gisele;
Arquivos Brasileiros de Cardiologia , 2011, DOI: 10.1590/S0066-782X2011005000091
Abstract: background: tramadol is a centrally acting analgesic, whose mechanism of action involves opioid-receptor activation. previously, we have shown that tramadol and its enantiomers had a negative inotropic effect on the papillary muscle in which the (+)-enantiomer is more potent than (-)- and (±)-tramadol. objective: in this study, we investigated the effects of tramadol and its enantiomers on l-type calcium current (ica-l). results: tramadol (200 μm) reduced the peak amplitude of ica-l at potentials from 0 to +50 mv. at 0 mv, ica-l was reduced by 33.7 ± 7.2%. (+)- and (-)-tramadol (200 μm) produced a similar inhibition of ica-l, in which the peak amplitude was reduced by 64.4 ± 2.8% and 68.9 ± 5.8%, respectively at 0 mv (p > 0.05). tramadol, (+)- and (-)-tramadol shifted the steady-state inactivation of ica-l to more negative membrane potentials. also, tramadol and (+)-tramadol markedly shifted the time-dependent recovery curve of ica-l to the right and slowed down the recovery of ica-l from inactivation. the time constant was increased from 175.6 ± 18.6 to 305.0 ± 32.9 ms (p < 0.01) for tramadol and from 248.1 ± 28.1 ms to 359.0 ± 23.8 ms (p < 0.05) for (+)-tramadol. the agonist of μ-opioid receptor damgo had no effect on the ica-l. conclusion: the inhibition of ica-l induced by tramadol and its enantiomers was unrelated to the activation of opioid receptors and could explain, at least in part, their negative cardiac inotropic effect.
O pesquisador frente à avalia??o na pós-gradua??o: em pauta novos modos de subjetiva??o
Axt, Margarete;
Psicologia & Sociedade , 2004, DOI: 10.1590/S0102-71822004000100006
Abstract: thinking the current capes model of post-graduation evaluation, in brazil, brings into a reflexive visibility some components of the mechanism that ended producing this subjectvation device of the researcher, since its creation in the seventies, through the process of globalization of the economy and expansion of telecommunications until the creation of the world trade organization in the nineties, followed by a stimulation of competition and individualization strategies. from the lines that come to us with several effects, configuring a complex context of brazilian post-graduation, i bring three issues to be discussed - indicators of the researcher's productivity; quality indicators defined by the qualis of their areas; and the ressuscitated fee for cnpq board -, as i am able to trace at this moment, trying to give them an outline of the scene in course, in the researcher's perspective. historically produced, these scenes, in perspective, may suggest an increasing process of shattering to the researcher in different levels: (a) inside the post-graduation program, by the continuous requirement to reach the expected quality rates; (b) in the researcher's own knowledge area, specially when working in two post-graduation programs, needing to attend to two qualis; (c) inside research groups, by asymmetries that are formed in the relations due to differentiated treatment towards cnpq scholarship holders (national council of scientific and technological development). if evaluation is a necessary condition to increase research and post-graduation education excellence, it is not, however, the only condition: it is needed to create conditions to possibilities in micropolitics instances to propose, based on collective evaluations, intervention strategies that work linking and producing new connections, in the countercurrent of the homogeneous, individualizing thinking and excluding competition. such movements, when acquiring strength and power, may provoke the emergence, in m
Pensando a educa o musical imaginativamente: uma filosofia da educa o musical por Estelle Ruth Jorgensen Thinking music education imaginatively: a philosophy of music education by Estelle Ruth Jorgensen
Margarete Arroyo
Per Musi , 2013,
Abstract:
Mundo da vida e pesquisa em educa o: ressonancias, implica es, replica es = World of life and researches in education: resonances, implications, responses
Axt, Margarete
Letras de Hoje , 2011,
Abstract: é propósito aqui criar algumas possibilidades de inflex o que permitam pensar em quest es postas pela via da pesquisa-forma o enquanto plano de experimenta o no ambito da própria escola. Esta modalidade investigativa afirma seu aspecto pro-ativo no sentido de que: ao mesmo tempo em que o pesquisador desenvolve seu trabalho, ele n o pode se descuidar da forma o propriamente dita, tendo em vista um cuidado ético de respeito ao outro, nesta rela o. Trata-se, também, de considerar a rela o academia-comunidade segundo um vínculo de indissociabilidade e de simultaneidade entre as dimens es universitárias pesquisa-extens o (forma o). N o mais pesquisa antecedendo e guiando extens o, mas pesquisa e extens o (forma o) fazendo-se juntas no mesmo contexto problemático em que se encontram em contato. Esta perspectiva oportuniza desenhar um plano, ao mesmo tempo de implica o-vivencia o do mundo da vida tal como se desenrola na escola, e de experimenta o-experiencia o de algumas alian as entre este mundo da vida na escola e o mundo teórico da academia, n o opondo um ao outro, antes compondo-os no tra ado de uma filosofia primeira, assim como proposta pelo filósofo russo Mikhail Bakhtin.
Aktualit t und Geschichtlichkeit der Querelle des Femmes Topicality and Historicity of the Querelle des Femmes
Margarete Zimmermann
querelles-net , 2006,
Abstract: Was ist der aktuelle Stand der Diskussion um den gro en Geschlechterstreit der Frühen Neuzeit in den verschiedenen Disziplinen? Gibt es Bezüge der Querelle des Femmes zur Gegenwart des 21. Jahrhunderts? Diese und andere Fragen stehen im Zentrum des vorliegenden Sammelbands, der auf die erste transdisziplin re Tagung zu diesen Themen im deutschsprachigen Raum zurückgeht. What is the latest state of scholarship on the debate about the greatest gender argument of the early modern period? Does the Querelle des Femmes have a relationship to the present in the twenty-first century? These and other questions are central to the collected volume at hand, which presents the results of the first transdisciplinary conference on this theme in the German-speaking world.
Frauen- und Geschlechterforschung in Mathematik und Naturwissenschaften Women’s and Gender Studies in Mathematics and Sciences.
Margarete Maurer
querelles-net , 2001,
Abstract: Der Band pr sentiert Vortr ge einer Ringvorlesung an der Universit t Hamburg im Jahr 1998/99. Die s mtlich aus den Naturwissenschaften oder der Mathematik kommenden Autorinnen geben von unterschiedlichen Perspektiven her Einblick in die M glichkeiten und Ergebnisse der feministische Analyse ihrer jeweiligen Fachgebiete. This volume presents a series of lectures on women’s and gender studies in mathematics and science at the University of Hamburg in 1998. The authors, all from these professional fields, offer actual insights into the potentials and results of feminist approaches to their disciplines.
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