Star Formation
Mostrando 1-12 de 33 artigos, teses e dissertações.
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1. African star grass response to postemergence herbicides
RESUMO A grama estrela africana (Cynodon nlemfuensis Vanderyst) é considerada excelente forrageira. Contudo, há poucas informações disponíveis sobre o manejo de plantas daninhas em áreas de grama estrela. Dois experimentos foram realizados em 2017 e 2018 para avaliar a resposta da grama estrela africana a herbicidas pós-emergentes. Os tratamentos fora
Ciênc. agrotec.. Publicado em: 27/05/2019
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2. Fractalidad en regiones de Formación Estelar
This paper calculates the Hausdorff-Besicovitch dimension or fractal dimension of two astronomical objects using the box counting method. Images were obtained with the Hubble Space Telescope from the regions of star formation known as Hubble V and Hubble X, located in the NGC 6822 galaxy. The fractal dimension values for these H II giant regions are compared
Rev. Bras. Ensino Fís.. Publicado em: 13/03/2017
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3. 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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4. 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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5. Search for very metal-poor stars based on carbon over-abundance / Busca por estrelas muito pobres em metais baseada no enriquecimento em carbono
The main goal of this work is to show that is possible to search for metal-poor stars based on the premise that a large fraction of these will be carbon-rich. This hypothesis had not yet been verified because many of the so-called CEMP (Carbon Enhanced Metal-Poor) stars were neglected in previous studies due to the design of the search for metal-poor stars w
Publicado em: 2010
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6. Conversão de materia escura não-relativistica em relativistica / Conversion of non relativistic dark matter into relativistic matter
The structure formation through the history of the universe crucially depends on the competition between non-relativistic and relativistic matter effects. We know that there are mechanisms which convert the contents of one into the other. Particularly the explosion of a core-collapse supernova converts an energy corresponding to 99% of the gravitational bind
Publicado em: 2009
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7. Emancipatory sex education curriculum in a training course for teachers: a study of levels of reflection on teaching / A formação de educadores na educação sexual emancipatória: um estudo dos níveis de reflexão nas práticas pedagógicas
This mestrado research searched contribute with the formation in the area of the education, formation of educators and sexual education, doing a survey of existing gaps in the area, identified in the personal trajectory of the researcher and next to the group of research of which is part. This investigation if it gave by research of qualitative matrix, with
Publicado em: 2009
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8. Fundo estocástico de ondas gravitacionais gerados por buracos negros pré-galáctiocs / Stochastic Background of Gravitational Waves Generated By pre-galactic Black Hole Formation
Observation of the Cosmic Microwave Background Radiation (CMB) provide us with a clear information about the status of matter and radiation at the decoupling era like a snapshot of the Universe 300.000 years after the Big-Bang. Nowadays, through observations of the cosmic structure, we can build-up the history of the Universe from one billion years after the
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/02/2008
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9. Fundo estocástico de ondas gravitacionais gerados por buracos negros pré-galáctiocs / Stochastic Background of Gravitational Waves Generated By pre-galactic Black Hole Formation
Observation of the Cosmic Microwave Background Radiation (CMB) provide us with a clear information about the status of matter and radiation at the decoupling era like a snapshot of the Universe 300.000 years after the Big-Bang. Nowadays, through observations of the cosmic structure, we can build-up the history of the Universe from one billion years after the
Publicado em: 2008
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10. The role of the interstellar magnetic field in the star formation associated to optical jets / A influência do campo magnético interestelar na formação estelar associada a jatos ópticos
Em regiões de formação estelar de nossa Galáxia, encontramos os objetos Herbig-Haro, que resultam do choque supersônico de efluxos (outflows) originados em estrelas jovens com o meio interestelar adjacente. O mecanismo que se acredita ser responsável pela geração dos jatos (processo de aceleração magneto-centrífuga) envolve a presença de um campo
Publicado em: 2008
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11. MODERNISMO MINEIRO: SOCIABILIDADE E PRODUÇÃO INTELECTUAL NA DÉCADA DE 1920
This paper analyses the modernist movement in Minas Gerais during the decade of 1920 focusing on the existing relation between intellectual people and their cultural production. In this context, the concept of sociality is the basis of this research and we focused our attention on self-referential writing and magazines published during that period as sources
Publicado em: 2008
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12. Investigation of a sequence of methodologies for engineering of information systems: - study case incubanet-PEâs network / InvestigaÃÃo de uma seqÃÃncia de metodologias para engenharia de sistemas de informaÃÃo: estudo de caso da rede incubanet-PE
The advent of new forms of capitalism has driven, in the last decades of the twentieth century, the formation of Enterprise Networks. Multidisciplinary studies have been held in to order to understand and improve the networkâs management tools. This paper investigates organizations and types of networks, highlighting the dimensions of power and formality of
Publicado em: 2008