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Search Results: 1 - 10 of 181944 matches for " Marcelo de "
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Does pH of tyrode solution modify glucose and electrolyte jejunal absorption in rats?  [PDF]
Elizabeth Lage Borges, Marcelo de Pinho Viana
Journal of Biophysical Chemistry (JBPC) , 2012, DOI: 10.4236/jbpc.2012.32014
Abstract: Studies have shown that glucose is able to decrease the pH of the surface epithelium jejunal preparations when added in vitro and the existence of a high concentration of protons in the immediate area of the mucosa could be of considerable significance for absorption of electrolytes. The aim of this study is to assess whether the change in pH of Tyrode (solution used for perfusion of the jejunum) interferes with the absorption of glucose and electrolytes. Male Wistar rats weighing 200 to 220 g (n = 6) were utilized. Jejunal absorption of glucose and electrolytes was investigated in rats. A Tyrode solution containing twice glucose, sodium and potassium concentration (pH 7.0, 7.4, 8.0 and 8.5) was infused through the jejunal loops during 40 minutes. The glucose absorption was not significantly affected by Tyrode. However, there was significantly decrease in sodium absorption at pH 7.0 and 8.5 (41.13 ± 2.79 and 41.37 ± 1.71, respectively, P < 0.05) when compared with the uptake at pH 7.4 and 8.0 (61.06 ± 6.50 and 56.28 ± 7.03, respectively, P < 0.05). Moreover, potassium absorption increased at pH 8.0 (1.04 ± 0.07) when compared with the uptake at pH 7.0 (0.59 ± 0.04), 7.4 (0.78 ± 0.08) and 8.5 (0.54 ± 0.05) (P < 0.05). These data indicate that the pH of Tyrode has no influence on glucose absorption. However, the major potassium uptake occurs at pH 8.0, while the absorption of sodium is impaired at pH 7.0 and 8.5.
General Relativistic Treatment of the Pioneers Anomaly  [PDF]
Marcelo Samuel Berman, Fernando de Mello Gomide
Journal of Modern Physics (JMP) , 2012, DOI: 10.4236/jmp.2012.329155
Abstract: We consider a General Relativistic generalized RWs metric, and find a field of Universal rotational global centripetal acceleration, numerically coincident with the value of the Pioneers Anomalous one. Related subjects are also treated. The rotation defined here is different from older frameworks, because we propose a Gaussian metric, whose tri-space rotates relative to the time orthogonal axis, globally.
Relativistic Cosmology and the Pioneers Anomaly  [PDF]
Marcelo Samuel Berman, Fernando de Mello Gomide
Journal of Modern Physics (JMP) , 2012, DOI: 10.4236/jmp.2012.329152
Abstract: NASA spacecrafts has suffered from three anomalies. The Pioneers spacecrafts were decelerated, and their spin when not disturbed, was declining. On the other hand, fly-bys for gravity assists, appeared with extra speeds, relative to infinity. The Pioneers and fly-by anomalies are given now exact general relativistic full general solutions, in a rotating expanding Universe. We cite new evidence on the rotation of the Universe. Our solution seems to be the only one that solves the three anomalies.
Local and Global Stability of the Universe  [PDF]
Marcelo Samuel Berman, Fernando de Mello Gomide
Journal of Modern Physics (JMP) , 2013, DOI: 10.4236/jmp.2013.48A002
Abstract:

We prove, by a general relativistic derivation, that the Universe is locally and globally, stable, resembling an extreme Kerr-white-hole—Universe.

Changes in Multinational Industrial Enterprises through the Adoption of Innovation: Case of E-Business in Brazilian and Foreign Capital Companies  [PDF]
Silvia Novaes Zilber, Marcelo Scorsato de Rosa
iBusiness (IB) , 2013, DOI: 10.4236/ib.2013.54017
Abstract:

The objective of this study was to understand the changes that took place in large multinational industries acting in the physical world that, by adopting e-business, started acting in the virtual world, as well as the needs that led to this adoption. Method: multi-case study with two companies, a national industry (“A”) and a subsidiary of a developed country (“B”) in Brazil. Results: In terms of motivation, both companies mentioned an increase in revenue, but “B” highlighted its alignment with global strategy, focused on innovation and e-business, as a “showcase” of the company’s innovative side. Logistical transformations: “A” hired a logistics operator; “B” developed internally adapted logistics, taking advantage of knowledge from its headquarters.

Strategic Environmental Assessment to Improve Infrastructure Impact Assessments in Brazil  [PDF]
Isabel Silva Dutra de Oliveira, Marcelo Monta?o, Marcelo Pereira de Souza
Journal of Environmental Protection (JEP) , 2013, DOI: 10.4236/jep.2013.410136
Abstract:

The wider consideration of environmental effects and alternatives in early stages of decision-making has been pointed as one of the major benefits of Strategic Environmental Assessment (SEA). Adopted by virtually all of developed countries and sprawling around emergent and developing ones, it is recognized that SEA effectiveness is attached to its systematic application in development plans and programmes. Brazil and many developing countries have different experiences with this instrument and lacks of definition of a procedural framework to promote the use of SEA in strategic levels of decision. As a consequence development projects are frequently threatened” by impact assessment outcomes, especially when a mandatory project-EIA has to inform decisions. In order to contribute to the implementation of SEA in developing countries, the present paper discusses the potential benefits of using SEA in transport infrastructure plans and programmes, through a case study applied to transport plans in the state of Sao Paulo (south-eastern Brazil). The outcomes indicate that SEA could contribute to improve infrastructure impact assessments, minimizing social and environmental conflicts, augmenting the acceptability of projects and decisions, reinforcing the need for SEA to be systematically implemented in Brazil.

Performance e educa??o: rela??es, significados e contextos de investiga??o
Pereira, Marcelo de Andrade;
Educa??o em Revista , 2012, DOI: 10.1590/S0102-46982012000100013
Abstract: the following article presents and discusses the concept of performance. it intends to relate the meanings of performance to educational practice. as a meta-philosophical investigation this paper tries to analyze performance (making performance itself the object of investigation) considering the contributions of anthropology, theory of literature, linguistics, arts and pedagogy. to this extent this text makes an attempt to retain the meaning of pedagogical practice as based in aesthetical principles. as one might expect, the investigation takes place in the context of performance - art, communication and culture - the purpose being, to prove (justify) a theory of performance in education, because by taking the proposition of a practical performance pedagogy further, it points the way for educational action of an expressive character/nature. as well as qualitatively evaluating the aesthetic experience, and an aesthetic education, the investigation also intends to measure the teacher's communication, empirically (another words, quantitatively).
Passados a construir: sobre um outro mundo, de Gustaw Herling-Grudziński
Souza, Marcelo Paiva de;
Alea : Estudos Neolatinos , 2011, DOI: 10.1590/S1517-106X2011000200005
Abstract: this article aims at introducing to the latin-american readers an exemplary witness of the gulag, the polish writer gustaw herling-grudziński, and his work a world apart, a poignant account of life in the soviet camps, and at the same time a lucid analysis of the political terror established by the communist regime's repressive system. a reading of a world apart is proposed, in view of the discussions about the concept of totalitarianism, as well as the contemporary research on testimony in literature (particularly in latin america and poland). which issues are raised by herling-grudziński's text in that context?
As Flores do Mal e o fracasso do poema
Moraes, Marcelo Jacques de;
Alea : Estudos Neolatinos , 2007, DOI: 10.1590/S1517-106X2007000100011
Abstract: basing itself on a reading of the bad monk, the essay revisits the discussion about baudelaire?s reflexion on the conditions of poetry, which presents the poem?s work as production/ mise en scène of the experience of its own failure.
Democracia e regionalismo chez Jean-Louis Quermonne
Medeiros, Marcelo de Almeida;
Lua Nova: Revista de Cultura e Política , 2008, DOI: 10.1590/S0102-64452008000100001
Abstract: aiming at the development of the study of non-anglophone authors in the political science literature in brazil, this text seeks to approach the issues of both democracy and regionalism in jean-louis quermonne's bibliography. it has three parts. the first situates the author in the french political science scenario through a brief biography. the second part promotes a critical and comparative analysis of quemonne's works on democracy , i.e.: le gouvernement de la france sous la vème république, les régimes politiques occidentaux and les politiques institutionnelles. the third part inquires, also critically and comparatively, about quermonne's thinking on regionalism: le système politique de l'union européenne, l'europe et le fédéralisme and l'europe en quête de légitimité. finally, this article brings some conclusive considerations, pointing out both the importance of the french, in general, and quermonne's, in particular, political thought.
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