Self Localization
Mostrando 13-24 de 95 artigos, teses e dissertações.
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13. Localização de corrente e efeito Joule em manganitas com ordenamento de carga / Current localization and Joule self-heating effects in manganites with charge ordered
Este trabalho contempla um estudo sistemático das propriedades elétricas de óxidos cerâmicos a base de manganês. Ênfase foi dada a sistemas onde uma correlação forte entre os graus de liberdade de carga, spin e rede com ordenamento orbital resultam em um estado fundamental heterogêneo, devido a uma separação de fases. Com esse objetivo, foram prep
Publicado em: 2005
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14. Sintomas osteomusculares e qualidade de vida em professores do ensino fundamental / Musculoskeletal symptoms and quality of life in teachers of elementary and secondary schools
O objetivo da presente pesquisa foi identificar a ocorrência de sintomas musculoesqueléticos em professores do Ensino Fundamental, bem como a sua localização corporal, aspectos de qualidade de vida e tarefas do trabalho docente percebidas como mais fatigantes. Trata-se de um estudo transversal, com 157 professores efetivos da rede estadual e municipal de
Publicado em: 2004
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15. Efeitos de temperatura e de interação finita em sistemas desordenados correlacionados
The main goal of this work is to study the role of disorder in strongly correlated systems, where the electron-electron interaction is comparable to or dominates over the electron kinetic energy. Keeping this in mind, we solve the Hubbard model and the Anderson lattice model in the presence of disorder. The main theory in which our work is based is the Dynam
Publicado em: 2003
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16. Aplicação das funções de quase-probabilidade no estudo da dinamica de emaranhamento
Entanglement dynamics of two ideal bipartites systems is analyzed using reduced linear entropy and quasiprobability distribution functions in the semiclassical regime.Two models are studied: the quartic bidimensional oscillator and the Dicke ?s Maser model. The first one describes the propagation of two monochromatic field modes in a Kerr medium, and the sec
Publicado em: 2003
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17. Espectroscopia e transferÃncia de energia em eidros La2O3-Nb2O5-B2O3
Glasses are amorphous materials with structures that can, in general, be described by a random non-periodic network model. Although for many glasses, mainly silicates, this model is appropriate, there are systems that present short and medium-range order (first and second coordination spheres) for which more sophisticated models are needed to describe their
Publicado em: 2003
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18. Semiconductor superlattices: artificial crystals with unique electronic and transport properties
Semiconductor superlattices are artificial crystals with a periodicity much larger than lattice constants of the constituent materials. Applying an electric field parallel to the superlattice axis, i.e., perpendicular to the layers, results in unique electronic and transport properties such as miniband transport and Wannier-Stark localization, which are the
Brazilian Journal of Physics. Publicado em: 2002-06
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19. Ordem e caos em plasmas magnetizados
The objective of this thesis is to present a clear understanding of some important nonlinear phenomena that are common in space and laboratory plasmas. Specifically,the present analytical and numerical studies have focused on the properties of electromagnetic turbulence as well as associated coherent structures and chaotic behaviors in a multi-component magn
Publicado em: 1999
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20. Tecnicas de renormalização aplicadas ao estudo da densidade de estados de sistemas desordenados
A general scheme for real space renormalization of formal scattering theory is presented and applied to the calculation of density of states (DOS) in some finite width systems. This technique is extended in a self-consistent way, to the treatment of disordered and partially ordered chains. Numerical results of moments and DOS are presented in comparison with
Publicado em: 1985
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21. Self-association of Coilin Reveals a Common Theme in Nuclear Body Localization
We have found that coilin, the marker protein for Cajal bodies (coiled bodies, CBs), is a self-interacting protein, and we have mapped the domain responsible for this activity to the amino-terminus. Together with a nuclear localization signal, the self-interaction domain is necessary and sufficient for localization to CBs. Overexpression of various wild
The American Society for Cell Biology.
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22. Karyopherin-Mediated Nuclear Import of the Homing Endonuclease VMA1-Derived Endonuclease Is Required for Self-Propagation of the Coding Region
VMA1-derived endonuclease (VDE), a site-specific endonuclease in Saccharomyces cerevisiae, enters the nucleus to generate a double-strand break in the VDE-negative allelic locus, mediating the self-propagating gene conversion called homing. Although VDE is excluded from the nucleus in mitotic cells, it relocalizes at premeiosis, becoming localized in both th
American Society for Microbiology.
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23. ARC1 Is an E3 Ubiquitin Ligase and Promotes the Ubiquitination of Proteins during the Rejection of Self-Incompatible Brassica Pollen
ARC1 is a novel U-box protein required in the Brassica pistil for the rejection of self-incompatible pollen; it functions downstream of the S receptor kinase (SRK). Here, we show that ARC1 has E3 ubiquitin ligase activity and contains several motifs that influence its subcellular localization. ARC1 can shuttle between the nucleus, cytosol, and proteasome/COP
American Society of Plant Biologists.
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24. Conserved Region CR2 of Epstein-Barr Virus Nuclear Antigen Leader Protein Is a Multifunctional Domain That Mediates Self-Association as well as Nuclear Localization and Nuclear Matrix Association
Self-association of viral proteins is important for many of their functions, including enzymatic, transcriptional, and transformational activities. Epstein-Barr virus (EBV) nuclear antigen leader protein (EBNA-LP) contains various numbers of W1W2 repeats and a unique carboxyl-terminal Y1Y2 domain. It was reported that EBNA-LP associates with a variety of cel
American Society for Microbiology.