Navegação Ciências Exatas e da Terra por Título

Resultados 1949-1968 de 5972

    • Feeding and feedback in NGC 3081 

      Müller, Allan Schnorr; Storchi-Bergmann, Thaisa; Robinson, Andrew; Lena, Davide; Nagar, Neil M. (2016) [Artigo de periódico]
      We present two-dimensional gaseous kinematics of the inner 1.2 × 1.8 kpc2 of the Seyfert 2 galaxy NGC 3081, from optical spectra (5600–7000 Å) obtained with the Gemini Multi Object Spectrograph integral field spectrograph ...

    • Feeding and feedback in the inner kiloparsec of the active galaxy NGC 2110 

      Müller, Allan Schnorr; Storchi-Bergmann, Thaisa; Nagar, Neil M.; Robinson, Andrew; Lena, Davide; Riffel, Rogemar André; Couto, Guilherme dos Santos (2014) [Artigo de periódico]
      We present two-dimensional gaseous kinematics of the inner 1.1 × 1.6 kpc² of the Seyfert 2 galaxy NGC 2110, from optical spectra (5600–7000 Å) obtained with the GeminiMulti Object Spectrograph integral field spectrograph ...

    • Feeding behavior of finishing pigs under diurnal cyclic heat stress 

      Oliveira, Marllon José Karpeggiane de; Valk, Márcio; Melo, Antônio Diego Brandão; Marçal, Danilo Alves; Silva, Cleslei Alisson; Valini, Graziela Alves da Cunha; Arnaut, Pedro Righetti; Gonçalves, Joseane Penteado Rosa; Andretta, Ines; Hauschild, Luciano (2023) [Artigo de periódico]
      The impact of cyclic heat stress (CHS) and turning the lights on and off on pig feeding behavior (FB) was investigated. The FB of 90 gilts was recorded in real-time under two ambient temperatures (AT): thermoneutrality ...

    • Feeding versus feedback in active galactic nuclei from near-infrared integral field spectroscopy : XII. NGC 5548 

      Schönell Júnior, Astor João; Storchi-Bergmann, Thaisa; Riffel, Rogemar André; Riffel, Rogério (2017) [Artigo de periódico]
      We map the gas excitation and kinematics, and the stellar population properties of the Seyfert 1 galaxy NGC 5548 using Gemini Near Infrared Integral Field Spectrograph in the J and K bands at a spatial and velocity resolution ...

    • Feeding versus feedback in active galactic nuclei from near-infrared integral field spectroscopy – X. NGC 5929 

      Riffel, Rogemar André; Storchi-Bergmann, Thaisa; Riffel, Rogério (2015) [Artigo de periódico]
      We present near-infrared emission-line flux distributions, excitation and kinematics, as well as stellar kinematics, of the inner 520 × 520 pc2 of the Seyfert 2 galaxy NGC 5929. The observations were performed with Gemini’s ...

    • Feeding versus feedback in AGN from near-infrared IFU observations : the case of Mrk 766 

      Schönell Júnior, Astor João; Riffel, Rogemar André; Storchi-Bergmann, Thaisa; Winge, Claudia (2014) [Artigo de periódico]
      We have mapped the emission-line flux distributions and ratios as well as the gaseous kinematics of the inner 450 pc radius of the type 1 Seyfert galaxy Mrk 766 using integral field near-infrared J- and Kl-band spectra ...

    • Feeding versus feedback in AGN from near-infrared IFU observations XI : NGC 2110 

      Diniz, Marlon Rodrigo; Riffel, Rogemar André; Storchi-Bergmann, Thaisa; Winge, Claudia (2015) [Artigo de periódico]
      We present a two-dimensional mapping of the gas flux distributions, as well as of the gas and stellar kinematics in the inner 220 pc of the Seyfert galaxy NGC 2110, using K-band integral field spectroscopy obtained with ...

    • Feeding versus feedback in AGNs from near-infrared IFU observations : the case of Mrk 79 

      Riffel, Rogemar André; Storchi-Bergmann, Thaisa; Winge, Claudia (2013) [Artigo de periódico]
      We have mapped the gaseous kinematics and the emission-line flux distributions and ratios from the inner≈680 pc radius of the Seyfert 1 galaxy Mrk 79, using two-dimensional (2D) nearinfrared J- and Kl-band spectra obtained ...

    • Feeding versus feedback in NGC 1068 probed with Gemini NIFS – I. Excitation 

      Riffel, Rogemar André; Vale, Tibério Borges; Storchi-Bergmann, Thaisa; McGregor, Peter J. (2014) [Artigo de periódico]
      We present emission-line flux distributions and ratios for the inner ≈200 pc of the narrowline region (NLR) of the Seyfert 2 galaxy NGC 1068, using observations obtained with the Gemini Near-infrared Integral Field ...

    • Feeding versus feedback in NGC4151 probed with Gemini NIFS – I. Excitation 

      Storchi-Bergmann, Thaisa; McGregor, Peter J.; Riffel, Rogemar André; Lopes, Ramiro Duarte Simões; Beck, Tracy; Dopita, Michael A. (2009) [Artigo de periódico]
      We have used the Gemini Near-infrared Integral Field Spectrograph (NIFS) to map the emission-line intensity distributions and ratios in the narrow-line region (NLR) of the Seyfert galaxy NGC4151 in the Z, J, H and K bands ...

    • Feeding versus feedback in NGC4151 probed with Gemini NIFS – II. Kinematics 

      Storchi-Bergmann, Thaisa; Lopes, Ramiro Duarte Simões; McGregor, Peter J.; Riffel, Rogemar André; Beck, Tracy; Martini, Paul (2010) [Artigo de periódico]
      We have used the Gemini Near-infrared Integral Field Spectrograph (NIFS) to map the gas kinematics of the inner ~200 × 500 pc 2 of the Seyfert galaxy NGC4151 in the Z, J, H and K bands at a resolving power of ≥5000 and ...

    • Feições de interação vulcano-sedimentares : exemplos na Bacia do Paraná (RS) 

      Rios, Fernando Rodrigues; Mizusaki, Ana Maria Pimentel; Michelin, Cassiana Roberta Lizzoni (2018) [Artigo de periódico]
      A Sequência Juro-Cretácea da Bacia do Paraná composta por arenitos eólicos da Formação Botucatu sobrepostos por derrames vulcânicos da Formação Serra |Geral, possui feições de interação vulcano-sedimentares na interface ...

    • Feições morfológicas associadas ao ambiente de deglaciação da Geleira Ecology, Ilha Rei George, Antártica 

      Vieira, Rosemary; Rossato, Maíra Suertegaray; Aquino, Francisco Eliseu; Simões, Jefferson Cardia (2005) [Artigo de periódico]
      A Geleira Ecology, localizada no litoral oeste da baía do Almirantado, Ilha Rei George, Ilhas Shetland do Sul, retrocedeu 400 m, aproximadamente, desde os anos 70, gerando uma complexa mescla de ambientes subglacial, ...

    • Feiras de Ciências no Brasil : panorama, resultados e recomendações 

      Silva, Camila Brito Collares da; Veit, Eliane Angela; Araujo, Ives Solano (2023) [Artigo de periódico]
      Os objetivos da presenterevisão da literatura são traçar um panorama das pesquisas sobre Feiras de Ciências sediadas no Brasil constantes no Portal de Periódicos CAPES/MEC na área de Educação e Ensino, identificar as ...

    • Fenômenos intermediários de interferência e emaranhamento quânticos : o interferômetro virtual de Mach-Zehnder integrado a atividades didáticas 

      Netto, Jader da Silva; Ostermann, Fernanda; Cavalcanti, Claudio Jose de Holanda (2018) [Artigo de periódico]
      Neste trabalho, apresentamos um conjunto de atividades didáticas que podem ser utilizadas para explorar conceitos de Física Quântica a partir da simulação computacional do Interferômetro de Mach-Zehnder. Tais atividades ...

    • Ferramentas de suporte as tarefas da analise exploratoria visual 

      Freitas, Carla Maria Dal Sasso; Wagner, Flavio Rech (1995) [Artigo de periódico]
      O trabalho apresenta de forma sistematizada as ferramentas inte rativas e visuais necessárias para suportar atividades de análise ex ploratória visual. Com base em diversos estudos de casos, as tarefas freqüentemente ...

    • Ferramentas online no ensino de ciências : uma proposta com o Google Docs 

      Heidemann, Leonardo Albuquerque; Oliveira, Ângelo Mozart Medeiros de; Veit, Eliane Angela (2010) [Artigo de periódico]

    • Ferrofluids : properties and application 

      Scherer, Claudio; Figueiredo Neto, Antonio Martins (2005) [Artigo de periódico]
      Magnetic fluids may be classified as ferrofluids (FF), which are colloidal suspensions of very fine (~10 nm) magnetic particles, and magnetorheological fluids, which are suspensions of larger, usually non-stable, magnetic ...

    • Ferromagnetic nanoclusters formed by Mn implantation in GaAs 

      Couto Junior, Odilon Divino Damasceno; Brasil, Maria José Santos Pompeu; Likawa, Fernando; Giles, Carlos Manuel; Adriano, C.; Bortoleto, José Roberto Ribeiro; Pudenzi, Marcio Alberto Araujo; Gutierrez, H.R.; Danilov, Iuri (2005) [Artigo de periódico]
      Ferromagnetic clusters were incorporated into GaAs samples by Mn implantation and subsequent annealing. The composition and structural properties of the Mn-based nanoclusters formed at the surface and buried into the GaAs ...

    • Ferromagnetic resonance in ag coupled ni films 

      Rezende, Sergio Machado; Moura, J.A.S.; Aguiar, F.M. de; Santos, Carlos Alberto dos; Schreiner, Wido Herwig; Teixeira, Sergio Ribeiro (1993) [Artigo de periódico]
      We present an X-band ferromagnetic resonance (FMR) study of polycrystalline single Ni films and of two Ni layers separated by an Ag layer at room temperature. Films were deposited by sputtering on glass using Ag over- and ...