Star Distribution
Mostrando 1-12 de 29 artigos, teses e dissertações.
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1. The effect of different concentrations of pre-harvest gibberellic acid on the quality and durability of ‘Obilnaja’ and ‘Black Star’ plum varieties
Abstract The research work aimed at investigating the effect of pre-harvest gibberellic acid (GA3) treatment on the quality of ‘Obilnaja’ and ‘Black Star’ Japanese plum varieties. GA3 was sprayed onto the trees during the fruit color break at 0, 25, 50, 75, and 100 ppm concentrations. After pre-cooling, the plums were placed in modified atmosphere pa
Food Sci. Technol. Publicado em: 20/05/2016
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2. Formação estelar no complexo de nuvens moleculares em Monoceros / Star Formation in the Molecular Cloud Complex in Monoceros
We compare two molecular clouds of the Monoceros Complex in order to study their physical conditions related to the early stages of star formation. The selected clouds, Rosette (RMC) and Monoceros R2 (Mon R2), are interesting regions due to their characteristics that may be confronted with the hypothesis of star formation triggered by high velocity clouds (H
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/05/2012
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3. Formação e evolução de galáxias: populações estelares na Via Láctea, galáxias elípticas e propriedades de galáxias em grupos / Galaxy Formation and Evolution: From the Milky Way to Galaxies in Groups
Understanding the way galaxies form and evolve throughout the cosmic time remains one of the greatest challenges of modern cosmology. Several processes are known to play a role in the formation of galaxies, such as feedback from supernovae and active galactic nuclei, chemical and dynamical evolution and environmental effects. This thesis encompasses these pr
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/03/2012
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4. Análise multi-espectral dos eventos cíclicos de Carinae / Multi-spectral analysis of the cyclic events of Eta Carinae
In this thesis, a multi-wavelength study on the cyclic events of Eta Carinae was performed. The presence of a hole in the polar region of the Homunculus was confirmed by the velocity maps of the [Fe II] 12567 line. The blue-shifted component of the He I 10830, detected towards the NW lobe, was mapped and it is in the equatorial plane. It was observed that wi
Publicado em: 2009
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5. High-energy gamma-ray production in microquasars
A hadronic model for gamma-ray production in microquasars is presented. Microquasars are galactic binary systems with jets, which have, presumably, hadronic components. We consider a microquasar formed by a neutron star that accretes matter from the equatorial wind of a Be primary star. The collision between the jet, emitted by the compact object, and the de
Brazilian Journal of Physics. Publicado em: 2007-07
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6. Distribution of hyperons in 200A GeV Au-Au in smoothed particle hydrodynamics
The transverse momentum distributions of hadrons in 200GeV Au-Au collisions at RHIC are calculated using the smoothed particle hydrodynamics code SPheRIO. They are compared with data from STAR and PHOBOS Collaborations. By employing an equation of state which explicitly incorporates the strangeness conservation and introducing strangeness chemical potential
Braz. J. Phys.. Publicado em: 2007-06
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7. Dynamic processes in complex networks / Processos dinamicos em redes complexas
We study the statistical properties of in²uence networks subjected to external perturbations. We consider networks whose nodes have internal states that can assume the values 0 or 1. The internal states can change depending on the state of the neighboring nodes. We let N1 nodes be frozen in the state 1, N0 be frozen in the state 0 and the remaining N nodes
Publicado em: 2007
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8. Cloning, expression and characterization of an antigenic domain of the a major surface protein recombinant NcSRS2 (Nc1-p43) of Neospora caninum. / Clonagem, expressão e caracterização do domínio antigênico da proteína majoritária de superfície NcRS2 (Nc1-p43) recombinante de Neospera caninum
Neospora caninum is an obligate intracellular protozoan that can infect domestic and wild canids, as well as ruminants and equines. It was described in 1988 as causing neuromuscular alterations and death in dogs. Recently, N. caninum has received considerable attention for its large impact on the dairy industry, given the economic losses related to breeding
Publicado em: 2006
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9. Relativistic jets and accretion phenomena associated with galactic and extragalactic black holes
More than a dozen binary star systems hosting stellar-mass black holes have been discovered in our galaxy. Some of them eject collimated relativistic jets with apparent velocities larger than the light speed. These objects have been named microquasars thanks to their similarity with the distant quasars or active nuclei of galaxies that host supermassive blac
Brazilian Journal of Physics. Publicado em: 2005-12
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10. Charged polytropic compact stars
In this work, we analyze the effect of charge in compact stars considering the limit of the maximum amount of charge they can hold. We find that the global balance of the forces allows a huge charge (~ 10(20) Coulomb) to be present in a neutron star producing a very high electric field (~ 10(21) V/m). We have studied the particular case of a polytropic equat
Brazilian Journal of Physics. Publicado em: 2004-03
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11. Populações estelares em galáxias elípticas: cinemática e indicadores de metalicidade e idade / Stellar populations on elliptical galaxies: kinematic, metallicity and age indicators
O estudo da distribuição interna das populações estelares em galáxias do tipo prematuro fornecem informações fundamentais para testar os seus modelos de formação e evolução químio-dinâmica. Por outro lado, o estudo da dinâmica estelar interna nessas galáxias fornece informações relevantes para prever a forma: esferóide triaxial, oblato ou p
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 200211
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12. Stellar populations on elliptical galaxies: kinematic, metallicity and age indicators / Populações estelares em galáxias elípticas: cinemática e indicadores de metalicidade e idade
O estudo da distribuição interna das populações estelares em galáxias do tipo prematuro fornecem informações fundamentais para testar os seus modelos de formação e evolução químio-dinâmica. Por outro lado, o estudo da dinâmica estelar interna nessas galáxias fornece informações relevantes para prever a forma: esferóide triaxial, oblato ou p
Publicado em: 2002