Browsing Exact and Earth Sciences by Title
Now showing items 4119-4138 of 5948
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Probing the active galactic nucleus unified model torus properties in Seyfert galaxies
(2017) [Journal article]We studied the physical parameters of a sample comprising of all Spitzer/Infrared Spectrograph public spectra of Seyfert galaxies in the mid-infrared (5.2–38 μm range) under the active galactic nucleus (AGN) unified model. ... -
Probing the age and structure of the nearby very young open clusters NGC2244 and 2239
(2009) [Journal article]The very young open cluster (OC) NGC2244 in the Rosette Nebula was studied with fieldstar- decontaminated Two-Micron All-Sky Survey (2MASS) photometry, which shows the main-sequence (MS) stars and an abundant pre-MS (PMS) ... -
Probing the circumnuclear stellar populations of Starburst galaxies in the near-infrared
(2014) [Journal article]We employ the NASA Infrared Telescope Facility’s near-infrared spectrograph SpeX at 0.8– 2.4 μm to investigate the spatial distribution of the stellar populations (SPs) in the four well-known starburst galaxies: NGC 34, ... -
Probing the effects of strong electromagnetic fields with charge-dependent directed flow in Pb-Pb collisions at the LHC
(2020) [Journal article]The first measurement at the LHC of charge-dependent directed flow (v1) relative to the spectator plane is presented for Pb-Pb collisions at √sNN=5.02 TeV. Results are reported for charged hadrons and D0 mesons for the ... -
Probing the internal rotation of pre-white dwarf stars with asteroseismology : the case of PG 0122+200
(2011) [Journal article]We put asteroseismological constraints on the internal rotation profile of theGWVir (PG1159- type) star PG 0122+200. To this end we employ a state-of-the-art asteroseismological model for this star and assess the expected ... -
Probing the Large Magellanic Cloud age gap at intermediate cluster masses
(2010) [Journal article]The Large Magellanic Cloud (LMC) has a rich star cluster system spanning a wide range of ages and masses. One striking feature of the LMC cluster system is the existence of an age gap between 3 and 10 Gyr. But this feature ... -
Probing the near-infrared stellar population of Seyfert galaxies
(2009) [Journal article]We employ Infrared Telescope Facility SpeX near-infrared (NIR; 0.8–2.4 μm) spectra to investigate the stellar population (SP), active galactic nuclei (AGN) featureless continuum (FC) and hot dust properties in nine Sy 1 ... -
Probing the reciprocal lattice associated with a triangular slit to determine the orbital angular momentum for a photon
(2020) [Journal article]The orbital angular momentum conservation of light reveals different diffraction patterns univocally dependent on the topological charge of the incident light beam when passing through a triangular aperture. It is demonstrated ... -
Probing thermomechanical behavior of polymers at the nanometer scale with single-ion bombardment and scanning force microscopy
(2000) [Journal article]Features produced by swift heavy ions on polymer thin films at different temperatures are used to identify the transition between vitreous and viscoelastic behaviors (the glass transition temperature) and to probe the ... -
Probing the spin-orbit coupling of nuclear protons
(1973) [Journal article]The strong absorption in quasi-free scattering opens a possibility of measuring the spin-orbit coupling of nuclear protons. Cross sections for polarized incoming protons are expected to exhibit pronounced asymmetries, with ... -
Probing the structure of Kepler ZZ Ceti stars with full evolutionary models-based asteroseismology
(2017) [Journal article]We present an asteroseismological analysis of four ZZ Ceti stars observed with the Kepler spacecraft: GD 1212, SDSS J113655.17+040952.6, KIC 11911480, and KIC 4552982, based on a grid of full evolutionary models of DA white ... -
Probing the symmetry energy from the nuclear isoscaling
(2008) [Journal article]Using different parametrizations of the nuclear mass formula, we study the sensitivity of the isoscaling parameters to the mass formula employed in grand-canonical calculations. Previous works on isoscaling have suggested ... -
O problema da linguagem e o ensino da mecânica quântica no nível médio
(2011) [Journal article]Neste artigo, é discutida a questão básica da linguagem e da captação de significados da Mecânica Quântica (MQ) como uma questão relevante para a inserção dos seus conceitos fundamentais no Ensino Médio. Sabe-se que a ... -
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O Problema na modelagem Matemática : determinação e transformação
(2019) [Journal article]Este artigo tem por objetivo discutir o conceito de problema em Modelagem Matemática no contexto abrangido pela Educação Matemática. Trata-se de resultado de uma pesquisa, norteada pela metodologia qualitativa, em que ... -
Problemas abertos no ensino de física : uma análise em revistas da área
(2021) [Journal article]Este trabalho relata uma pesquisa bibliográfica, visando identificar, analisar e categorizar os problemas abertos utilizados na literatura em que são citados ou abordados, apresentando suas principais características. Com ... -
Problemas aritméticos em livros, revistas e programas : um exercício de cruzamento de fontes
(2016) [Journal article]O artigo relata a trajetória de uma investigação em curso acerca do lugar atribuído aos problemas aritméticos no ensino primário, no Rio Grande do Sul, nos anos 1950, articulada a um processo de constituição de um repositório ... -
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Problemas do discurso de Deepak Chopra: uma análise metalinguística de “A cura quântica”
(2021) [Journal article]Neste artigo, nosso objetivo é contribuir para o debate sobre o misticismo quântico, explorando aspectos discursivos que permeiam um enunciado com tal tema. Para tanto, realizamos uma análise metalinguística do livro A ... -
Processamento semantico de informacoes situadas
(1998) [Journal article]Aspectos semânticos do processamento de informações são levantados através da Teoria da Situação, estabelecendo um arcabouço formal para a representação, composição e inferência em sistemas de recuperaçã? de informações. ...
