Barriers And Potentials
Mostrando 1-12 de 16 artigos, teses e dissertações.
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1. A questão dos riscos em ambientes de computação em nuvem / The risks issue in cloud computing
This report presents and depicts the research carried out in order to find out recommendations that may possibly assist consumers of cloud computing services to deal with risks intrinsic to that architecture, so that consumers can be able to contract those kinds of services within an acceptable level of risk. The research comprised five phases to satisfy thi
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/10/2011
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2. Materiais não convencionais na construção civil : presente, passado e futuro no processo de conhecimento dos assentados de Mogi Mirim-SP / Non conventional materials in the civil construction : present, passed and future in the discovery process of the settlers from Mogi Mirim-SP
Many conflicts and different interests appear as processes in the creation of an agrarian reform settlement, leaving in the background the house establishment for the settled family. In addition, the agricultural improvements are an important factor for the family reproduction but they may not be consolidated until the family acquires enough income for their
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/02/2011
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3. Aplicações da tecnologia solar fotovoltaica no Estado do Piauí : barreiras e potencialidades / Applications of solar photovoltaic technology in the State of Piauí: barriers and potentials
The availability of electric power can allow countless opportunities to humans; improving life quality and allowing one to improve oneself work. However, nowadays millions of people, in all continents, do not have access to this important and fundamental energy resource. In this context, the State of Piauí, Northeast Brazil, clearly presents high electric e
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/12/2009
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4. Análise das potencialidades e barreiras referentes ao desenvolvimento e à implementação do biodiesel a partir do óleo de palma na Colômbia / Analysis of potentials and barriers for the development and implementation of biodiesel from palm oil in Colombia.
Since 2003, Colombia, predicting a deficit in fuel production and trying to revive the rural economy, begins its national biofuels program based on policies, regulations and economic incentives for the new energy sector. This dissertation aims to describe and to analyze the process of implementing the biodiesel program from palm oil in Colombia, determining
Publicado em: 2009
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5. Alternativas para a superação de obstáculos relativos à criação de valor, aumento da competitividade e acordos comerciais Internacionais na negociação comercial do Brasil com a China: o caso da soja
China and Brazil have got commercial potentials and strategic partnerships are desired from both sides, but in order to guarantee long term, stable relationship these countries must overcome barriers and obtain mutual gains. The objective of this study was to determine how one can overcome obstacles related to value creation, enhance of competitiveness and i
Publicado em: 2005
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6. Avaliação do metodo semi-empirico HAM-3 no calculo de propriedades moleculares
The behavior of the semiempirical HAM/3(Hydrogenic atoms in molecules - version 3) method in calculation of several molecular properties: heats of f ormation, internal rotational barriers, ionization potentials, electron affinities, dipole moments and charge distribuction was studied. The study permits us to know more about the characteristics of the method.
Publicado em: 1987
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7. Sidechain torsional potentials and motion of amino acids in porteins: bovine pancreatic trypsin inhibitor.
Conformational potentials of sidechains in the bovine pancreatic trypsin inhibitor have been studied with an empirical energy function. Calculated minimumenergy positions are in excellent agreement with the x-ray structure for sidechains in the core or at the surface of the protein; as expected, angles for sidechains that are directed out into the solvent do
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8. RESONANCE STABILIZATION OF CYCLE GROUPS OF HYDROGEN-BONDED WATER MOLECULES
A quantum-mechanical resonance effect can be associated with cyclic groups of hydrogen-bonded water molecules and, conceivably, might influence the structure of liquid water (M. Ageno, these PROCEEDINGS, 57, 567 (1967)). However, from the calculations presented here, this resonance stabilization appears to be too small (<0.1 kcal/mole) to over come the therm
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9. Simultaneous measurement of Ca2+ influx and reversal potentials in recombinant N-methyl-D-aspartate receptor channels.
The Ca(2+) permeability of N-methyl-D-aspartate receptor (NMDA-R) channels was studied in human embryonic kidney cells transfected with the NR1-NR2A subunit combination. To determine the fractional Ca(2+) current (P(f)), measurements of fura-2-based Ca(2+) influx and whole-cell currents were made in symmetrical monovalent ion concentrations at membrane poten
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10. Isolated rat hepatocyte couplets: a primary secretory unit for electrophysiologic studies of bile secretory function.
Hepatocyte couplets were isolated by collagenase perfusion from rat liver. Between adjacent cells, the bile canaliculus forms a closed space into which secretion occurs. As in intact liver, Mg2+-ATPase is localized at the canalicular lumen, the organic anion fluorescein is excreted, and secretion is modified by osmotic gradients. By passing a microelectrode
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11. A gradient-directed Monte Carlo method for global optimization in a discrete space: Application to protein sequence design and folding
We apply the gradient-directed Monte Carlo (GDMC) method to select optimal members of a discrete space, the space of chemically viable proteins described by a model Hamiltonian. In contrast to conventional Monte Carlo approaches, our GDMC method uses local property gradients with respect to chemical variables that have discrete values in the actual systems,
American Institute of Physics.
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12. Permeation and block of rat GluR6 glutamate receptor channels by internal and external polyamines.
1. Polyamine block of rat GluR6(Q) glutamate receptor channels was studied in outside-out patches from transiently transfected HEK 293 cells. With symmetrical 150 mM Na+ and 30 microM internal spermine there was biphasic voltage dependence with 95% block at +40 mV but only 20% block at +140 mV. Dose-inhibition analysis for external spermine also revealed bip