Browsing Exact and Earth Sciences by Title
Now showing items 2920-2939 of 6198
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Lattice model of ionic liquid confined by metal electrodes
(2018) [Journal article]We study, using Monte Carlo simulations, the density profiles and differential capacitance of ionic liquids confined by metal electrodes. To compute the electrostatic energy, we use the recently developed approach based ... -
Lattice site investigation of F in preamorphized Si
(2007) [Journal article]The lattice location of F atoms in Si was experimentally studied. Si single crystals were amorphized, implanted with F, and afterwards the amorphous layer was recrystallized. Some of the samples prepared in this way were ... -
Lattice strain distribution resolved by X-ray Braggsurface diffraction in an Si matrix distorted by embedded FeSi2 nanoparticles
(2013) [Journal article]Out-of-plane and primarily in-plane lattice strain distributions, along the two perpendicular crystallographic directions on the subsurface of a silicon layer with embedded FeSi2 nanoparticles, were analyzed and resolved ... -
La V epistemológica aplicada a algunos enfoques en resolución de problemas
(1999) [Journal article]This paper includes a technique to apply a simplified Gowin’s Vee as a reference tool to analyse four different trends which are useful for research in Physics problem solving. They are: a) the strategy alternative; b) the ... -
Laves-phase pseudobinaries a(fe1-xbx)2 (a=zr,hf;b=al,si): some structural and magnetic properties
(1991) [Journal article]The lattice parameters and the saturation magnetization are measured for the series of intermetallic compounds A(Fe,B)2 A = Zr, Hf and B = Si and Al, with concentrations less than 15%. The magnetization measurements and ... -
LC-MS/MS method applied to preclinical pharmacokinetic investigation of olanzapine-loaded lipid-core nanocapsules
(2014) [Journal article]In spite of different methods reported in the literature to determine olanzapine in biological fluids, all of them used high volumes of plasma. Therefore, the purpose of this paper was to develop an LC-MS/MS method using ... -
Leaching of atrazine in commercial and xerogel formulations in oxisol using bioassay and chromatographic methods
(2015) [Journal article]Mobility of atrazine in soil has contributed to the detection of levels above the legal limit in surface water and groundwater in Europe and the United States. The use of new formulations can reduce or minimize the impacts ... -
Léa da Cruz Fagundes : uma expert na formação de professores, em tempos de aprendizagem mediada por tecnologias digitais de informação e comunicação
(2020) [Journal article]Apresenta-se neste texto parte da trajetória de Léa da Cruz Fagundes, professora emérita da Universidade Federal do Rio Grande do Sul e que, ao longo de mais de 60 anos de atuação como professora, gerou um legado em termos ... -
Lean Manufacturing e ergonomia : uma revisão sistemática da literatura
(2017) [Journal article]No decorrer dos anos as temáticas de lean manufacturing, ergonomia e segurança vem sendo estudadas e integradas para melhorias de processos, porém, muitas vezes os recursos humanos são esquecidos. Desta forma, a presente ... -
Lean office : mapeamento do fluxo de valor administrativo em rotina de trabalho de órgão público
(2017) [Journal article]No decorrer dos anos, a manufatura Lean se encontrou em crescente desenvolvimento e vem conquistando cada vez mais espaços em seus universos de atuação, contudo, as organizações que decidem aplicar a filosofia Lean em seus ... -
Leitura de ondas cerebrais como ferramenta para escolha das melhores práticas pedagógicas por parte dos docentes : um estudo quase experimental com estudantes do ensino superior
(2019) [Journal article]O objetivo deste estudo foi identificar, dentre três métodos/ferramentas/formas distintas de ensino, quais despertam maior interesse e retém a atenção dos estudantes do ensino superior. Com essa finalidade, foi realizado ... -
Length scale, quasiperiodicity, resonances, separatrix crossings, and chaos in the weakly relativistic Zakharov equations
(1995) [Journal article]Nonlinear saturation of unstable solutions to the weakly relativistic, one-dimensional Zakharov equations is considered in this paper. In order to perform the analysis, two quantities are introduced. One of them, p* is ... -
Les transformations de Cremona stellaires
(2000) [Journal article]We construct the Cremona transformations of Pn satisfying the following property: there exist P1; P2 є Pn such that the image of all straight lines through P1 are straight lines through P2. We characterise these transformations, ... -
Level compressibility for the Anderson model on regular random graphs and the eigenvalue statistics in the extended phase
(2017) [Journal article]We calculate the level compressibility χ(W,L) of the energy levels inside [−L/2,L/2] for the Anderson model on infinitely large random regular graphs with on-site potentials distributed uniformly in [−W/2,W/2]. We show ... -
Levels and correlates of risk factor control in diabetes mellitus –ELSA-Brasil
(2023) [Journal article]Background: Control of glucose, blood pressure, cholesterol, and smoking improves the prognosis of individuals with diabetes mellitus. Our objective was to assess the level of control of these risk factors in Brazilian ... -
Lewis acid promoted Friedländer condensation reactions between anthranilonitrile and ketones for the synthesis of tacrine and its analoques
(2009) [Journal article]Nesse trabalho estudou-se a reação de ciclodesidratação entre antranilonitrila e várias cetonas na presença de diferentes ácidos de Lewis não reportados na literatura, para a obtenção de 9-amino-1,2,3,4-tetrahidroacridinas. ... -
Library Free Technology Mapping
(1998) [Journal article]This paper presents an efficient method for mapping a set of Boolean equations onto a set of Static CMOS Complex Gates (SCCGs) under a constraint in the number of serial transistors. This Library Free Technology Mapping ... -
Licenciatura em física : algumas considerações
(1979) [Journal article] -
Liderança e gênero em um debate acadêmico entre graduandos em física
(2010) [Journal article]A presente pesquisa buscou investigar a construção de lideranças na dinâmica discursiva de um debate sobre Mecânica Quântica entre estudantes de um curso de graduação em Física e possíveis relações com as diferenças de ...
