4f 4f Intensities
Mostrando 13-24 de 56 artigos, teses e dissertações.
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13. Moderate intensity physical training accelerates healing of full-thickness wounds in mice
Physical training influences the cells and mediators involved in skin wound healing. The objective of this study was to determine the changes induced by different intensities of physical training in mouse skin wound healing. Ninety male C57BL6 mice (8 weeks old, 20-25 g) were randomized into three physical training groups: moderate (70% VO2max), high (80% VO
Brazilian Journal of Medical and Biological Research. Publicado em: 2011-10
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14. Acute exercise performed close to the anaerobic threshold improves cognitive performance in elderly females
The objective of the present study was to compare the effect of acute exercise performed at different intensities in relation to the anaerobic threshold (AT) on abilities requiring control of executive functions or alertness in physically active elderly females. Forty-eight physically active elderly females (63.8 ± 4.6 years old) were assigned to one of fou
Brazilian Journal of Medical and Biological Research. Publicado em: 2009-05
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15. Avaliação da eficiência do teste precoce no melhoramento genético de soja / Evaluation of early generation testing effectiveness in soybean breeding
Early generation testing in plant breeding consists of selecting progenies in early generations of selfing such as in F2 or F3, in order to save time and resources. The objective of this work was to assess the early generation testing effectiveness in soybean breeding programs. The base population consisted of a two way cross between inbred lines 14 and 38,
Publicado em: 2008
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16. Utilização do modelo CCFDF na interpretação das intensidades fundamentais das moleculas X IND. 2 CY e sua aplicação na regra da soma / Use of the CCFDF model in the interpretation of the fundamental intensities of the X IND. 2 CY molecules and its application in characteristic substituent shift model
The QTAIM atomic charges and dipoles of X2CY (X = H, F, Cl; Y = O, S) molecules were determined from their optimized geometries. With these data the molecular dipole moments were calculated, showing good agreement with the experimental values in the literature and with the calculated values from the MP2/6-311++G (3d, 3p) wavefunction. The infrared fundamenta
Publicado em: 2008
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17. Application of electroflocculation technique for the tannery effluent treatment / AplicaÃÃo da tÃcnica de eletro-floculaÃÃo no tratamento de efluentes de curtume
In the present work has been studied the electro-flocculation efficiency on the reduction of organic and inorganic material concentrations such as Chemical Oxygen Demand (COD), turbidity, total solids and metal, mainly chromium, on an untreated tannery effluent using a pair of electrodes. For this purpose, a lab scale Electro-Flocculation (EF) reactor was co
Publicado em: 2008
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18. The study of 3s3p4 configuration in the P-Sequence, Co XIII - Ni XIV, by laser-produced plasmas
Wavelengths from radiation of plasmas produced by a Nd:YAG/glass laser focused on target of Co and Ni have been recorded photographically in the region 240-600 Å with a 3m normal incidence spectrograph. For this sequence (Co XIII and Ni XIV) we have identified 13 new lines belonging to the array 3s²3p³-3s3p4 and derived 7 new levels for the 3s3p4 configur
Brazilian Journal of Physics. Publicado em: 2007-06
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19. Efeitos de diferentes intensidades de exercÃcio resistido sobre as respostas hemodinÃmicas em indivÃduos diabÃticos tipo 2 e nÃo diabÃticos
Physical exercise, when prescribed in a proper intensity, is very important in the prevention and/or non pharmacological treatment of high blood pressure, which is common among type-2 diabetics (D). The decrease in blood pressure (BP) after exercise, below pre-exercise rest values, known as post-exercise hypotension (PEH), has been verified after both aerobi
Publicado em: 2006
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20. Uma investigaÃÃo teÃrica e experimental das propriedades luminescentes de novos complexos de lantanÃdeos com β-cetoÃsteres
The theoretical and experimental study of the luminescent properties of the complexes of trivalent europium, terbium and gadolinium ions with β-ketoesthers, ethyl 4,4,4-trifluoroacetoacetate (ETA), ethyl acetoacetate (EAA), methyl 4-methoxy acetoacetate (MMA) and ethyl benzoilacetoacetate (EBA) ligands revealed a new class of complexes that present opti
Publicado em: 2005
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21. Neodymium in hydrogenated amorphous silicon sub-nitrides (a-SiNx:H) / Neodimio em sub-nitretos de silicio amorfo hidrogenado (a-SiNx:H)
In this work, we report a study of the photoluminescence (PL) optimization of a-SiNx:H
thin films prepared by RF co-sputtering. The PL was investigated as a function of nitrogen and neodymium concentrations. We observed that the Nd ions are excited through the amorphous matrix. The excitation mechanism is more efficient in samples where the optical gap E0 Publicado em: 2005
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22. Conformational analysis and electronic interaction study of some ortho-substituted alpha-ethylsulfonylacetophenones; and the oxidative rearrangement study of some ortho-substituted alpha-ethylthioacetophenones / Análise conformacional e estudo das interações eletrônicas em alfa-etilsulfonilacetofenonas-orto-substituídas e o estudo do rearranjo oxidativo de alfa-etiltioacetofenonas-orto-substituídas
The first part of this thesis reports the conformational study of some -ortho-substituted α-ethylsulfonylacetophenones o-X-PhC(O)CH2SO2Et (X= OMe 1, Me 2, F 3, Cl 4, Br 5 e NO2 6) through the analysis of the carbonyl stretching IR band in solvents of increasing polarity supported by HF/6-31G** ab initio computations. The good match between IR frequencie
Publicado em: 2005
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23. Padrões de distribuição genotipica em litorinideos (Mollusca : Gastropoda) da costa brasileira / Genotypic distribution patterns in littorinids (Mollusca : Gastropoda) from Brazilian coast
One of the main questions in biology is the link between a species ecology and its evolution. Evaluating the relationship between the geographical scale over which populations differ genetically and the species dispersal ability is a way to understand how this link is established. Spatial variation in allellic frequencies of natural populations may be explai
Publicado em: 2005
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24. Spectroscopic measurements in a titanium vacuum arc with different ambient gases
Spectral emission lines from a low pressure d-c arc discharge with a Ti cathode were studied in various ambient gases; N2, O2, and Ar. Light from the plasma was detected by an optical spectrometer multichannel analyzer (OSMA). The spectral intensities of Ti, Ti+, Ar and N2 were measured as a function of the gas pressure in the range 5 × 10-3 - 0.5 mbar. The
Brazilian Journal of Physics. Publicado em: 2004-12