Now showing items 4139-4158 of 4248

    • V2O3(0001) surface termination : phase equilibrium 

      Window, Amanda J.; Silva Junior, Agenor Hentz da; Sheppard, D. C.; Parkinson, G.S.; Niehus, Horst; Ahlbehrendt, D.; Noakes, Tim C. Q.; Bailey, Paul; Woodruff, D. P. (2011) [Journal article]
      Complementary but independent medium-energy and low-energy ion scattering studies of the (0001) surfaces of V₂O₃ films grown on Pd(111), Au(111) and Cu₃Au(100) reveal a reconstructed full O₃-layer termination creating a ...
    • Valence and delocalization of yb in the Chevrel-phase YbMo 6 S 8 

      Jorgensen, James D.; Hinks, D.J.; Noakes, D.R.; Viccaro, Patsy James; Shenoy, G.K. (1983) [Journal article]
      Mãssbauer isomer-shift measurements show that Yb is divalent in YbMo6Sg. The asymmetry of the Yb thermal vibration at 4.2 K obtained from the Goldanskii-Karyagin effect is much smaller than that obtained from a Rietveld ...
    • Validação da versão brasileira do Questionnaire of Smoking Urges-Brief 

      Araujo, Renata Brasil; Oliveira, Margareth da Silva; Moraes, João Feliz Duarte de; Pedroso, Rosemeri Siqueira; Port, Franciny; Castro, Maria da Graça Tanori de (2007) [Journal article]
      Contexto: A avaliação do craving (ou fissura) é muito importante no tratamento do tabagismo. Objetivo: O objetivo desta pesquisa foi validar a versão brasileira do Questionnaire of Smoking Urges-Brief (QSU-B). Método: O ...
    • Validação de metodologia analítica por cromatografia líquida para doseamento e estudo da estabilidade de pantoprazol sódico 

      Raffin, Renata Platcheck; Colomé, Letícia Marques; Guterres, Silvia Stanisçuaski; Pohlmann, Adriana Raffin (2007) [Journal article]
      Pantoprazole is a proton pump inhibitor used in the treatment of digestive ulcers, gastro-esophageal reflux disease and in the eradication of Helicobacter pylori. In this work, an analytical method was developed and validated ...
    • Validação relativa de questionário de frequência alimentar em gestantes usuárias de serviços do Sistema Único de Saúde em dois municípios no Rio Grande do Sul, Brasil 

      Giacomello, Andressa; Schmidt, Maria Inês; Nunes, Maria Angelica Antunes; Duncan, Bruce Bartholow; Soares, Rafael Marques; Manzolli, Patricia Portantiolo; Camey, Suzi Alves (2008) [Journal article]
      Objetivos: avaliar o desempenho do Questionário de Frequência Alimentar (QFA), desenvolvido por Sichieri e Everhart, em medir o consumo alimentar de gestantes atendidas pelo Sistema Único de Saúde (SUS), comparando as ...
    • Validación de un cuestionario para investigar concepciones de profesores sobre ciencia y modelado científico en el contexto de la física 

      Brandão, Rafael Vasques; Araujo, Ives Solano; Veit, Eliane Angela; Silveira, Fernando Lang da (2011) [Journal article]
      Aunque los términos ‘naturaleza de la ciencia’ y ‘modelo científico’ sean polisémicos en la Enseñanza de Ciencias, hay una especie de consenso en el área en cuanto a la importancia de la epistemología y del modelado ...
    • A validade preditiva do escore total em testes relativos a concepções em força e movimento e em corrente eletrica sobre a média final de alunos de física I (mecânica) e Física II (eletromagnetismo) 

      Silveira, Fernando Lang da; Moreira, Marco Antonio (1992) [Journal article]
      Foram realizados sete estudos independentes da validade preditiva do escore total no teste relativo às concepções em força e movimento (SILVEIRA, MOREIRA e AXT; 1986 e 1992) sobre a média final de alunos de Física I ...
    • Variabilidade morfodinâmica das praias oceânicas entre Imbé e Arroio do Sal, RS, Brasil 

      Weschenfelder, Jair; Ayup-Zouain, Ricardo Norberto (2002) [Journal article]
      The morphodynamic variability of the oceanic beaches between Imbé and Arroio do Sal towns, Rio Grande do Sul State, Brazil, was investigated by means of periodic beach profiling combined with the interpretation of granulometric ...
    • Variability in baseline laboratory measurements of the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil) 

      Ladwig, Ruben; Vigo, Álvaro; Fedeli, Ligia Maria Giongo; Chambless, Lloyd Ellwood; Benseñor, Isabela Judith Martins; Schmidt, Maria Inês; Vidigal, Pedro Guatimosim; Castilhos, Cristina Dickie de; Duncan, Bruce Bartholow (2016) [Journal article]
      Multi-center epidemiological studies must ascertain that their measurements are accurate and reliable. For laboratory measurements, reliability can be assessed through investigation of reproducibility of measurements in ...
    • As variações dos intervalos de tempo entre as fases principais da lua 

      Silveira, Fernando Lang da (2001) [Journal article]
      Os intervalos de tempo entre as sucessivas fases principais da Lua (Nova, Quarto Crescente, Cheia e Quarto Minguante) não são identicos e apresentam pronunciadas variacões ao longo do tempo. Neste trabalho e elaborada uma ...
    • Variation of the refractive index and polarizability of sapphire under high pressures 

      Balzaretti, Naira Maria; Denis, J.P.; Jornada, Joao Alziro Herz da (1993) [Journal article]
      In this article we present the experimental results for the pressure variation of the refractive index of sapphire up to 16 GPa, obtained with an interferometric method, using the diamond anvil cell. In the range of ...
    • Variations in the 6.2 μm emission profile in starburst-dominated galaxies : a signature of polycyclic aromatic nitrogen heterocycles (PANHs)? 

      Canelo, Carla Martinez; Friaça, Amâncio César Santos; Sales, Dinalva Aires de; Pastoriza, Miriani Griselda; Dutra, Daniel Ruschel (2018) [Journal article]
      Analyses of the polycyclic aromatic hydrocarbon (PAH) feature profiles, especially the 6.2 μm feature, could indicate the presence of nitrogen incorporated in their aromatic rings. In thiswork, 155 predominantly ...
    • VDES J2325−5229 a z = 2.7 gravitationally lensed quasar discovered using morphology-independent supervised machine learning 

      Ostrovski, F.; McMahon, Richard G.; Connolly, Andrew J.; Lemon, Cameron A.; Auger, Matthew W.; Banerji, M.; Hung, Johnathan M.; Koposov, Sergey E.; Lidman, Chris; Reed, Sophie L.; Allam, Sahar S.; Benoit-Lévy, Aurélien; Bertin, Emmanuel; Brooks, D.; Buckley-Geer, Elizabeth; Carnero Rosell, Aurelio; Carrasco Kind, Matías; Carretero Palacios, Jorge; Cunha, Carlos Eduardo; Costa, Luiz N. da; Desai, S.; Diehl, H. Thomas; Dietrich, Jörg P.; Evrard, August E.; Finley, David A.; Flaugher, Brenna; Fosalba Vela, Pablo; Frieman, Joshua A.; Gerdes, David W.; Goldstein, Daniel Abraham; Gruen, Daniel; Gruendl, Robert A.; Gutierrez, Gaston R.; Honscheid, K.; James, David J.; Kuehn, Kyler; Kuropatkin, Nikolay P.; Lima, Marcos Vinicius Borges Teixeira; Lin, H.; Maia, Marcio Antonio Geimba; Marshall, Jennifer L.; Martini, Paul; Melchior, Peter M.; Miquel, Ramon; Ogando, Ricardo L.C.; Plazas Malagón, Andrés Alejandro; Reil, Kevin; Romer, Kathy; Sanchez-Alvaro, Eusebio; Santiago, Basilio Xavier; Scarpine, Victor Emanuel; Sevilla Noarbe, Ignacio; Soares-Santos, Marcelle; Sobreira, Flávia; Suchyta, Eric; Tarle, Gregory; Thomas, D.; Tucker, Douglas L.; Walker, Alistair (2017) [Journal article]
      We present the discovery and preliminary characterization of a gravitationally lensed quasar with a source redshift zs = 2.74 and image separation of 2.9 arcsec lensed by a foreground zl = 0.40 elliptical galaxy. Since ...
    • Vector meson production in coherent hadronic interactions : update on predictions for energies available at the BNL Relativistic Heavy Ion Collider and the CERN Large Hadron Collider 

      Goncalves, Victor Paulo Barros; Machado, Magno Valério Trindade (2011) [Journal article]
      In this Rapid Communication we update our predictions for the photoproduction of vector mesons in coherent pp and AA collisions at Relativistic Heavy Ion Collider (RHIC) and Large Hadron Collider (LHC) energies using the ...
    • Very low mass stellar and substellar companions to solar-like stars from MARVELS. I. A low-mass ratio stellar companion to TYC 4110-01037-1 in a 79 day orbit 

      Wisniewski, J.P.; Ge, Jian; Crepp, Justin R.; De Lee, Nathan M.; Eastman, Jason; Esposito, Massimiliano; Fleming, S.W.; Gaudi, B. S.; Ghezzi, Luan; González Hernández, Jonay I.; Lee, Brian L.; Stassun, Keivan G.; Agol, Eric; Allende Prieto, Carlos; Barnes, Rory; Bizyaev, D.; Cargile, Phillip A.; Chang, Liang; Costa, Luiz N. da; Mello, Gustavo Frederico Porto de; Femenía Castellá, B.; Ferreira, Letícia D.; Gary, Bruce L.; Hebb, Leslie; Holtzman, J.A.; Liu, Jian; Ma, Bo; Mack, C. E.; Mahadevan, Suvrath; Maia, Marcio Antonio Geimba; Nguyen, D.C.; Ogando, Ricardo L.C.; Oravetz, Daniel J.; Paegert, Martin; Pan, K.; Pepper, J.; Rebolo, Rafael; Santiago, Basilio Xavier; Schneider, D.P.; Bradley, Alaina C. Shelden; Simmons, Audrey E.; Tofflemire, Benjamin M.; Wan, Xiaoke; Wang, Ji; Zhao, Bo (2012) [Journal article]
      TYC 4110-01037-1 has a low-mass stellar companion, whose small mass ratio and short orbital period are atypical among binary systems with solar-like (Teff 6000 K) primary stars. Our analysis of TYC 4110-01037-1 reveals it ...
    • Very low mass stellar and substellar companions to solar-like stars from MARVELS. II. A short-period companios orbiting an F star with evidence of a stellar tertiary and significant mutual inclination 

      Fleming, S.W.; Jian Ge; Barnes, Rory; Beatty, Thomas G.; Crepp, Justin R.; De Lee, Nathan M.; Esposito, Massimiliano; Femenía Castellá, B.; Ferreira, Letícia D.; Gary, Bruce L.; Gaudi, B. S.; Ghezzi, Luan; González Hernández, Jonay I.; Hebb, Leslie; Jiang, Peng; Lee, Brian L.; Nelson, Ben; Mello, Gustavo Frederico Porto de; Shappee, Benjamin J.; Stassun, Keivan G.; Thompson, Todd; Tofflemire, Benjamin M.; Wisniewski, J.P.; Wood-Vasey, W.M.; Agol, Eric; Allende Prieto, Carlos; Bizyaev, D.; Brewington, Howard J.; Cargile, Phillip A.; Coban, Louis; Costello, Korena S.; Costa, Luiz N. da; Good, Melanie L.; Hua, Nelson; Kane, Stephen R.; Lander, Gary R.; Liu, Jian; Ma, Bo; Mahadevan, Suvrath; Maia, Marcio Antonio Geimba; Malanushenko, E.; Malanushenko, V.; Muna, Demitri; Nguyen, D.C.; Oravetz, Daniel J.; Paegert, Martin; Pan, K.; Pepper, J.; Rebolo, Rafael; Roebuck, Eric J.; Santiago, Basilio Xavier; Schneider, D.P.; Bradley, Alaina C. Shelden; Simmons, Audrey E.; Sivarani, Thirupathi; Snedden, S.A.; Vincent, Chelsea L. M.; Wan, Xiaoke; Wang, Ji; Weaver, Benjamin A.; Weaver, Gwendolyn M.; Zhao, Bo (2012) [Journal article]
      We report the discovery via radial velocity (RV) measurements of a short-period (P = 2.430420±0.000006 days) companion to the F-type main-sequence star TYC 2930-00872-1. A long-term trend in the RV data also suggests the ...
    • Very low mass stellar and substellar companions to solar-like stars from MARVELS. IV. A candidate bronw dwarf or low-mass stellar companion HIP 67526 

      Jiang, Peng; Ge, Jian; Cargile, Phillip A.; Crepp, Justin R.; De Lee, Nathan M.; Mello, Gustavo Frederico Porto de; Esposito, Massimiliano; Ferreira, Letícia D.; Femenía Castellá, B.; Fleming, S.W.; Gaudi, B. S.; Ghezzi, Luan; González Hernández, Jonay I.; Hebb, Leslie; Lee, Brian L.; Ma, Bo; Stassun, Keivan G.; Wang, Ji; Wisniewski, J.P.; Agol, Eric; Bizyaev, D.; Brewington, Howard J.; Chang, Liang; Costa, Luiz N. da; Eastman, Jason; Ebelke, Garrett L.; Gary, Bruce L.; Kane, Stephen R.; Li, Rui; Liu, Jian; Mahadevan, Suvrath; Maia, Marcio Antonio Geimba; Malanushenko, V.; Malanushenko, E.; Muna, Demitri; Nguyen, D.C.; Ogando, Ricardo L.C.; Oravetz, Audrey; Oravetz, Daniel J.; Pan, K.; Pepper, J.; Paegert, Martin; Allende Prieto, Carlos; Rebolo, Rafael; Santiago, Basilio Xavier; Schneider, D.P.; Bradley, Alaina C. Shelden; Sivarani, Thirupathi; Snedden, S.A.; Van Eyken, Julian C.; Wan, Xiaoke; Weaver, Benjamin A.; Zhao, Bo (2013) [Journal article]
      We report the discovery of a candidate brown dwarf (BD) or a very low mass stellar companion (MARVELS-5b) to the star HIP 67526 from the Multi-object Apache point observatory Radial Velocity Exoplanet Large-area Survey ...
    • Very low mass stellar and substellar companions to solar-like stars from MARVELS. V. A low eccentricity brown dwarf from the driest part of the desert, marvels-6b 

      De Lee, Nathan M.; Ge, Jian; Crepp, Justin R.; Eastman, Jason; Esposito, Massimiliano; Femenía Castellá, B.; Fleming, S.W.; Gaudi, B. S.; Ghezzi, Luan; González Hernández, Jonay I.; Lee, Brian L.; Stassun, Keivan G.; Wisniewski, J.P.; Wood-Vasey, W.M.; Agol, Eric; Allende Prieto, Carlos; Barnes, Rory; Bizyaev, D.; Cargile, Phillip A.; Chang, Liang; Costa, Luiz N. da; Mello, Gustavo Frederico Porto de; Ferreira, Letícia D.; Gary, Bruce L.; Hebb, Leslie; Holtzman, J.A.; Liu, Jian; Ma, Bo; Mack, C. E.; Mahadevan, Suvrath; Maia, Marcio Antonio Geimba; Nguyen, D.C.; Oravetz, Audrey; Oravetz, Daniel J.; Paegert, Martin; Pan, K.; Pepper, J.; Malanushenko, E.; Malanushenko, V.; Rebolo, Rafael; Santiago, Basilio Xavier; Schneider, D.P.; Bradley, Alaina C. Shelden; Wan, Xiaoke; Wang, Ji; Zhao, Bo (2013) [Journal article]
      We describe the discovery of a likely brown dwarf (BD) companion with a minimum mass of 31.7 ± 2.0 MJup to GSC 03546-01452 from the MARVELS radial velocity survey, which we designate as MARVELS-6b. For reasonable priors, ...
    • Very-low-mass stellar and substellar companion to solar-like stars from MARVELS. III. A short-period brown dwarf cadidate around an active G0IV subgiant 

      Ma, Bo; Ge, Jian; Barnes, Rory; Crepp, Justin R.; De Lee, Nathan M.; Ferreira, Letícia D.; Esposito, Massimiliano; Femenía Castellá, B.; Fleming, S.W.; Gaudi, B. S.; Ghezzi, Luan; Hebb, Leslie; González Hernández, Jonay I.; Lee, Brian L.; Mello, Gustavo Frederico Porto de; Stassun, Keivan G.; Wang, Ji; Wisniewski, J.P.; Agol, Eric; Bizyaev, D.; Cargile, Phillip A.; Chang, Liang; Costa, Luiz N. da; Eastman, Jason; Gary, Bruce L.; Jiang, Peng; Kane, Stephen R.; Li, Rui; Liu, Jian; Mahadevan, Suvrath; Maia, Marcio Antonio Geimba; Muna, Demitri; Nguyen, D.C.; Ogando, Ricardo L.C.; Oravetz, Daniel J.; Pepper, J.; Paegert, Martin; Allende Prieto, Carlos; Rebolo, Rafael; Santiago, Basilio Xavier; Schneider, D.P.; Bradley, Alaina C. Shelden; Simmons, Audrey E.; Sivarani, Thirupathi; Van Eyken, Julian C.; Wan, Xiaoke; Weaver, Benjamin A.; Zhao, Bo (2013) [Journal article]
      We present an eccentric, short-period brown dwarf candidate orbiting the active, slightly evolved subgiant star TYC 2087-00255-1, which has effective temperature Teff = 5903±42 K, surface gravity log(g) = 4.07±0.16 (cgs), ...
    • Very thin Fe/Ni modulation multilayer films under ion bombardment 

      Amaral, Livio; Scorzelli, R.B.; Brückmann, Magale Elisa; Paesano Junior, Andrea; Schmidt, Joao Edgar; Shinjo, Teruya; Hosoito, N. (1997) [Journal article]
      We investigated the effect of noble gas irradiation (He, Ne, and Xe) on Fe–Ni multilayers with a very thin modulation and nominal composition in the Invar region Fe0.63Ni0.37. The evaluation of the formation/stability of ...