oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Search Results: 1 - 10 of 39 matches for " Talitha "
All listed articles are free for downloading (OA Articles)
Page 1 /39
Display every page Item
Comunica o e sociabilidade nos cinemas de esta o, cineclubes e multiplex do subúrbio carioca da Leopoldina
Janice Caiafa,Talitha Ferraz
Galáxia , 2012,
Abstract: Este artigo busca examinar os processos de comunica o e sociabilidade relacionados às práticas de exibi o e especta o cinematográficas nos extintos cinemas de esta o — como denominamos aqueles instalados ao longo da ferrovia — nos complexos multiplex e nos cineclubes localizados em bairros da regi o da Leopoldina, na cidade do Rio de Janeiro. Com apoio em conversas com moradores, observa o participante e pesquisa em arquivos, procuramos explorar os usos que as pessoas fazem dos equipamentos de exibi o. Investigamos como as variadas formas da presen a do cinema nas ruas determinam certos tipos de ocupa o e examinamos como estes contribuem para a produ o da vida social nos bairros da Leopoldina.
Quantum limit of laser cooling in dispersively- and dissipatively-coupled optomechanical systems
Talitha Weiss,Andreas Nunnenkamp
Physics , 2013, DOI: 10.1103/PhysRevA.88.023850
Abstract: Mechanical oscillators can be cooled by coupling them to an optical or microwave cavity. Going beyond the standard quantum noise approach we find an analytic expression for the steady-state phonon number in systems where the position of the mechanical oscillator modulates the cavity frequency as well as the cavity line width. We trace the origin for the quantum limit of cooling to fluctuations in the optical force both at and away from the mechanical frequency. Finally, we calculate the minimal phonon number for the different types of coupling. Our study elucidates how to beneficially combine dispersive and dissipative optomechanical coupling.
A educa??o clínica como metodologia pedagógica: investiga??o sobre a aplica??o da psicanálise na área educacional em Minas Gerais
Moura, Francisco;Silva, Talitha Elen;
Educa??o em Revista , 2009, DOI: 10.1590/S0102-46982009000100015
Abstract: in what degree have the psychoanalytic concepts contributed to the transforming act intended by schools is the question approached. therefore, an exhaustive analysis on the educational guidelines of the state of minas gerais, brazil, including the national curricular parameters (ncps), the initial cycle of literacy and the common basic content was undertaken. the aim was not only to investigate the subjective aspects found direct or indirectly in these materials, a task concluded, but also to observe what is preserved or what is remodeled among the materials, confirming that the most recent ones are mainly based on the npcs, with few exceptions. the pedagogical planning of a municipal school in the region of inconfidentes was assessed, confirming that the subjectivity, indirectly present in the guidelines, has been preserved in that particular context. however, it has been ascertained that, in the guidelines and in the pedagogical project, the mention or whatever consideration of the teacher′s subjectivity in the teaching-learning process is scarce or null.
Avalia o in vitro da microdureza do esmalte adjacente a restaura es após desafio cariogênico
Ribeiro, Talitha Rodrigues et al.
Revista Odonto Ciência , 2009,
Abstract: Objetivo: Este estudo in vitro utilizou ensaio de microdureza para avaliar a desmineraliza o do esmalte pela indu o de les es artificiais de cárie adjacentes a materiais restauradores. Metodologia: Foram utilizados dois cimentos de ion mero de vidro convencionais (MAXXION R e VIDRION R ), um cimento de ion mero de vidro modificado por resina (VITREMER ) e uma resina composta sem flúor (Z-250 ). Cavidades padronizadas foram confeccionadas em 160 blocos de esmalte bovino, divididos aleatoriamente em 4 grupos experimentais (n=40) de acordo com o material utilizado. Após ser realizado o ensaio de microdureza inicial, os blocos de esmalte foram restaurados e submetidos à ciclagem térmica e de pH, simulando o desafio cariogênico. Os blocos foram ent o submetidos a novos ensaios de microdureza. A partir dos dados obtidos, foi calculada a perda de dureza superficial (PDS) do esmalte, a qual foi comparada através da análise de variancia e teste de Tukey (α=0,05). Resultados: A ordem decrescente de perda de dureza superficial do esmalte adjacente foi: Z-250 = VITREMER > VIDRION R > MAXXION R. Conclus o: A desmineraliza o foi menor no esmalte adjacente aos cimentos de ion mero de vidro convencionais do que no esmalte adjacente aos materiais resinosos.
Factor Analysis Demonstrates a Common Schizoidal Phenotype within Autistic and Schizotypal Tendency: Implications for Neuroscientific Studies
Talitha C. Ford,David P. Crewther
Frontiers in Psychiatry , 2014, DOI: 10.3389/fpsyt.2014.00117
Abstract: Behavioral and cognitive dysfunction, particularly social and communication impairments, are shared between autism and schizophrenia spectrum disorders, while evidence for a diametric autism-positive schizophrenia symptom profile is inconsistent. We investigated the shared phenotype at a personality trait level, particularly its resemblance to schizoid personality disorder, as well as differential aspects of the autism–schizophrenia model. Items of the autism spectrum quotient (AQ) and schizotypal personality questionnaire (SPQ) were pseudo-randomly combined, and were completed by 449 (162 male, 287 female) non-clinical participants aged 18–40. A factor analysis revealed three factors; the first represented a shared social disorganization phenotype, the second reflected perceptual oddities specific to schizotypy while the third reflected social rigidity specific to autism. The AQ and SPQ were strongly correlated with Factor 1 (AQ: r = 0.75, p < 0.001; SPQ: r = 0.96, p < 0.001), SPQ score was correlated with Factor 2 (r = 0.51, p < 0.001), particularly in cognitive–perceptual features (r = 0.66, p < 0.001), and AQ score was strongly correlated with Factor 3 (r = 0.76, p < 0.001). Furthermore, there was no relationship between Factor 1 and Factor 2. Thus, there is robust evidence for a shared social disorganization phenotype in autistic and schizotypal tendency, which reflects the schizoid phenotype. Discriminating and independent dimensions of schizotypal and autistic tendency exist in Factors 2 and 3, respectively. Current diagnostic protocols could result in different diagnoses depending on the instrument used, suggesting the need for neuromarkers that objectively differentiate autistic and schizotypal traits and resolve the question of commonality versus co-morbidity.
A New Player in the “Synaptopathy” of Alzheimer’s Disease – Arc/Arg 3.1
Talitha L. Kerrigan,Andrew D. Randall
Frontiers in Neurology , 2013, DOI: 10.3389/fneur.2013.00009
Abstract: Alzheimer’s disease (AD) is increasingly referred to as a “synaptopathy.” This moniker reflects the loss or damage of synapses that occurs as the disease progresses, which in turn produces functional degeneration of specific neuronal circuits and consequent aberrant activity in neural networks. Accumulating evidence supports the functional importance of the early-expression activity-regulated cytoskeletal (Arc) gene in regulating memory consolidation. Interestingly, AD patients express anomalously high levels of Arc protein. Arc physically associates with presenilin1, a pivotal protease for the generation of Amyloid β (Aβ) peptides. Arc expression itself is disrupted in the vicinity of Aβ oligomers and plaques. Such alterations result in the interruption of neuronal network integration in vivo. It is not clear what the impacts of these alterations are on the functional neurophysiology of transgenic mouse models of AD-associated amyloidopathy. Our group and others have described alterations to neuronal excitability and thus intrinsic firing within these transgenic mice models. This brief review will emphasize the rising role of Arc and its involvement in neurophysiological alterations of current AD models.
Strong-coupling effects in dissipatively coupled optomechanical systems
Talitha Weiss,Christoph Bruder,Andreas Nunnenkamp
Physics , 2012, DOI: 10.1088/1367-2630/15/4/045017
Abstract: In this paper we study cavity optomechanical systems in which the position of a mechanical oscillator modulates both the resonance frequency (dispersive coupling) and the linewidth (dissipative coupling) of a cavity mode. Using a quantum noise approach we calculate the optical damping and the optically-induced frequency shift. We find that dissipatively coupled systems feature two parameter regions providing amplification and two parameter regions providing cooling. To investigate the strong-coupling regime, we solve the linearized equations of motion exactly and calculate the mechanical and optical spectra. In addition to signatures of normal-mode splitting that are similar to the case of purely dispersive coupling, the spectra contain a striking feature that we trace back to the Fano line shape of the force spectrum. Finally, we show that purely dissipative coupling can lead to optomechanically-induced transparency which will provide an experimentally convenient way to observe normal-mode splitting.
Noise-Induced Transitions in Optomechanical Synchronization
Talitha Weiss,Andreas Kronwald,Florian Marquardt
Physics , 2015,
Abstract: We study how quantum and thermal noise affects synchronization of two optomechanical limit-cycle oscillators. Classically, in the absence of noise, optomechanical systems tend to synchronize either in-phase or anti-phase. Taking into account the fundamental quantum noise, we find a regime where fluctuations drive transitions between these classical synchronization states. We investigate how this "mixed" synchronization regime emerges from the noiseless system by studying the classical-to-quantum crossover and we show how the time scales of the transitions vary with the effective noise strength. In addition, we compare the effects of thermal noise to the effects of quantum noise.
The Area of the Surface Generated by Revolving a Graph About Any Line
Edray Herber Goins,Talitha M. Washington
Mathematics , 2011,
Abstract: We discuss a general formula for the area of the surface that is generated by a graph $[t_0, t_1] \to \mathbb R^2$ sending $t \mapsto \bigl(x(t), y(t) \bigr)$ revolved around a general line $L: A x + B y = C$. As a corollary, we obtain a formula for the area of the surface formed by revolving $y = f(x)$ around the line $y = m x + k$.
A Tasty Combination: Multivariable Calculus and Differential Forms
Edray Herber Goins,Talitha M. Washington
Mathematics , 2009,
Abstract: Differential Calculus is a staple of the college mathematics major's diet. Eventually one becomes tired of the same routine, and wishes for a more diverse meal. The college math major may seek to generalize applications of the derivative that involve functions of more than one variable, and thus enjoy a course on Multivariate Calculus. We serve this article as a culinary guide to differentiating and integrating functions of more than one variable -- using differential forms which are the basis for de Rham Cohomology.
Page 1 /39
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.