Magnetic Moments
Mostrando 1-12 de 51 artigos, teses e dissertações.
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1. Headache after evaluation with transcranial magnetic stimulation in a healthy participant. Case report
RESUMO JUSTIFICATIVA E OBJETIVOS: Efeitos adversos durante a estimulação não invasiva do cérebro são eventos considerados raros. O objetivo deste estudo foi apresentar um caso de paciente com cefaleia intensa com sinais autonômicos após estimulação magnética transcraniana de pulso único. RELATO DO CASO: Paciente do sexo feminino, 28 anos, saudá
BrJP. Publicado em: 23/09/2019
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2. Ni(II), Cu(II), AND Zn(II) COMPLEXES DERIVED FROM A NEW SCHIFF BASE 2-((Z)-(3-METHYLPYRIDIN-2- YLEIMINO)METHYL)PHENOL AND SYNTHESIS OF NANO SIZED METAL OXIDE PARTICLES FROM THESE COMPOUNDS
Synthesis, spectral identification, and magnetic properties of three complexes of Ni(II), Cu(II), and Zn(II) are described. All three compounds have the general formula [M(L)2(H2O)2], where L = deprotonated phenol in the Schiff base 2-((z)-(3-methylpyridin-2-yleimino)methyl)phenol. The three complexes were synthesized in a one-step synthesis and characterize
Quím. Nova. Publicado em: 2015-11
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3. CONSTRUCTION OF AN COMPACT SQUID MAGNETOMETER FOR CHARACTERIZATION OF THE MAGNETIC NANOPARTICLES USED IN BIOLOGICAL ASSAYS / CONSTRUÇÃO DE UM MAGNETÔMETRO SQUID COMPACTO PARA CARACTERIZAÇÃO DE NANOPARTÍCULAS MAGNÉTICAS UTILIZADAS EM ENSAIOS BIOLÓGICOS
The immunoassay is an important tool in clinical diagnostics and in fundamental research. Magnetic nanoparticles, bound with antibodies, have been applied increasingly for various immunoassays with the purpose of separation and quantification of antigens. We developed a system based on bulk SQUIDs for detecting the field generated from remanent magnetization
Publicado em: 2010
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4. Complexes of 4-chlorophenoxyacetates of Nd(III), Gd(III) and Ho(III)
The complexes of 4-chlorophenoxyacetates of Nd(III), Gd(III) and Ho(III) have been synthesized as polycrystalline hydrated solids, and characterized by elemental analysis, spectroscopy, magnetic studies and also by X-ray diffraction and thermogravimetric measurements. The analysed complexes have the following colours: violet for Nd(III), white for Gd(III) an
Eclética Química. Publicado em: 2010
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5. The physico-chemical properties of 2-methoxyphenoxyacetates of Mn(II), Co(II), Ni(II) and Cu(II)
The complexes of 2-methoxyhenoxyacetates of Mn(II), Co(II), Ni(II) and Cu(II)with the general formula: M(C9H9O4)3·4H2O, where M(II) = Mn, Co, Ni and Cu have been synthesized and characterized by elemental analysis, IR spectroscopy, magnetic and thermogravimetric studies and also X-ray diffraction measurements. The complexes have colours typical for M(II) io
Eclética Química. Publicado em: 2010
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6. Magnetocaloric and barocaloric effects in Mn[As(1-x) Sb(x)] e La[Fe(x) Si(1-x)]13 / Efeitos magnetocalórico e barocalórico em Mn[As(1-x) Sb(x)] e La[Fe(x) Si(1-x)]13
Recent experimental data revealed that the compounds La[Fe(x)Si(1-x)]13 and Mn[As(1-x)Sb(x)], present great values for the isothermal entropy change and the adiabatic temperature change. They also showed that the magnetocaloric effect in these compounds can be easily tuned through doping and external pressure. Therefore, such experimental data, which need a
Publicado em: 2010
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7. Ruido no transporte eletronico em sistemas mesoscopicos / Noise in the electronic transport in mesoscopic systems
This dissertation describes the fundamental caracteristics of mesoscopic conductors, and the origins and properties of the sources of noise in conductors. Firstly, we describe the noise through different methods and emphasize the properties of each kind of noise. In the following, we present the scattering approach for coherent phase conductors, which allows
Publicado em: 2009
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8. Effects of differential weekly frequencies of weight training on body composition and motor capacities in older men / Efeitos de diferentes frequencias semanais de treinamento com pesos sobre a composição corporal e capacidades motoras em homens idosos
The effects of weight training made with different intensities, frequencies and volumes provide beneficial answers and are well spread among young people and athletes. However, studies that look for the effects of weight training held at different frequencies weekly are limited to elder populations. So, the purpose of this study was to analyze and compare th
Publicado em: 2009
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9. Magnetic and barocaloric effect in physical systems with two energy levels / Efeitos magnetocalórico e barocalórico em sistemas físicos com dois níveis de energia
In this work we study the theoretical aspects of the magnetocaloric and barocaloric effect in simple physical systems with two and four energy levels. In order to do that, we used a Hamiltonian that consider local magnetic moments interacting among them and with an external magnetic field.We include in the Hamiltonian the magnetoelastic interaction, and an e
Publicado em: 2008
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10. The physico-chemical properties of 4-chlorophenoxyacetates of Mn(II), Co(II), Ni(II) and Cu(II)
The complexes of 4-chlorophenoxyacetates of Mn(II), Co(II), Ni(II) and Cu(II) have been synthesized as polycrystalline solids, and characterized by elemental analysis, spectroscopy, magnetic studies and also by X-ray diffraction and thermogravimetric measurements. The analysed complexes have the following colours: pink for Co(II), green for Ni(II), blue for
Eclética Química. Publicado em: 2008
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11. Local magnetic moments and hyperfine fields at Ta impurities diluted in XFe2 (X = Y, Gd, Yb) Laves phases compounds
Neste trabalho, estudamos, à temperatura finita, a sistemática na formação dos momentos locais de uma impureza de Ta diluída em compostos intermetálicos de fases de Laves XFe2 (X = Y, Gd, Yb). Utilizamos um hamiltoniano de Hubbard, extendido à duas sub-redes acopladas, para descrever as matrizes de fases de Laves. A interação eletrônica d-d é trat
Journal of the Brazilian Chemical Society. Publicado em: 2008
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12. Propriedades magneticas de filmes de ligas GD-Cr / Magnetic properties of Gd-Cr alloy films
Vapor condensation techniques are very useful for preparation of alloys whose components have no mutual solubility under equilibrium conditions In this work, one of these techniques ? sputtering ? has been used to fabricate metastable GdXCr1-X alloys whose magnetic properties were investigated as a function of the Gd concentration, x. Grazing incidence angle
Publicado em: 2008