Navegação Ciências Exatas e da Terra por Título

Resultados 5214-5233 de 5955

    • Systematic studies of correlations between different order flow harmonics in Pb-Pb collisions at √sNN = 2.76 TeV 

      Acharya, Shreyasi; Gay Ducati, Maria Beatriz; Pereira, Luis Gustavo; Pezzi, Rafael Peretti; ALICE Collaboration (2018) [Artigo de periódico]
      The correlations between event-by-event fluctuations of anisotropic flow harmonic amplitudes have been measured in Pb-Pb collisions at √ sNN = 2.76 TeV with the ALICE detector at the Large Hadron Collider. The results are ...

    • Systems Biology-Based Analysis Indicates Global Transcriptional Impairment in Lead-Treated Human Neural Progenitor Cells 

      Reis, Clovis Ferreira dos; Souza, Iara Dantas de; Morais, Diego Arthur de Azevedo; Oliveira, Raffael Azevedo; Imparato, Danilo Oliveira; Almeida, Rita Maria Cunha de; Dalmolin, Rodrigo Juliani Siqueira (2017) [Artigo de periódico]
      Lead poisoning effects are wide and include nervous system impairment, peculiarly during development, leading to neural damage. Lead interaction with calcium and zinc-containing metalloproteins broadly affects cellular ...

    • Systems chemo-biology analysis of DNA damage response and cell cycle effects induced by coal exposure 

      Torres Avila, Jose Fernando; Espitia-Pérez, Lyda; Bonatto, Diego; Silva, Fernanda Rabaioli da; Oliveira, Iuri Marques de; Silva, Luis Felipe Oliveira; Correa, Dione Silva; Dias, Johnny Ferraz; Silva, Juliana da; Henriques, João Antonio Pêgas (2020) [Artigo de periódico]
      Cell cycle alterations are among the principle hallmarks of cancer. Consequently, the study of cell cycle regulators has emerged as an important topic in cancer research, particularly in relation to environmental exposure. ...

    • System-size dependence of the charged-particle pseudorapidity density at √sNN = 5.02 TeV for pp, p–Pb, and Pb–Pb collisions 

      Acharya, Shreyasi; Gay Ducati, Maria Beatriz; Pereira, Luis Gustavo; ALICE Collaboration (2023) [Artigo de periódico]
      We present the first systematic comparison of the charged-particle pseudorapidity densities for three widely different collision systems, pp, p–Pb, and Pb–Pb, at the top energy of the Large Hadron Collider ( √sNN = 5.02 ...

    • Systems of exchange values as tools for multi-agent organizations 

      Dimuro, Gracaliz Pereira; Costa, Antonio Carlos da Rocha; Palazzo, Luiz Antonio Moro (2005) [Artigo de periódico]
      This paper introduces systems of exchange values as tools for the organization of multi-agent systems. Systems of exchange values are defined on the basis of the theory of social exchanges, developed by Piaget and Homans. ...

    • Tabela Periódica : concepções de estudantes ao longo do ensino médio 

      Vianna, Nycollas Stefanello; Cicuto, Camila Aparecida Tolentino; Pazinato, Maurícius Selvero (2019) [Artigo de periódico]
      O objetivo desta pesquisa foi verificar a compreensão dos estudantes em relação ao conteúdo de Tabela Periódica (TP) nas três séries do ensino médio em uma Escola Pública do Rio Grande do Sul (n=135). Para isso, elaborou-se ...

    • Tailoring coercivity of unbiased exchange-coupled ferromagnet/antiferromagnet bilayers 

      Sossmeier, K.D.; Schäfer, Deise; Bastos, Arthur Paulo Ozelame; Schmidt, Joao Edgar; Geshev, Julian Penkov (2012) [Artigo de periódico]
      This paper reports experimental results obtained on unconventional exchange-coupled ferromagnet/ antiferromagnet (FM/AF) system showing zero net bias. The Curie temperature of the FM (NiCu) is lower than the blocking ...

    • Tamanho de amostra de caracteres de cultivares de feijão 

      Cargnelutti Filho, Alberto; Ribeiro, Nerinéia Dalfollo; Storck, Lindolfo; Jost, Evandro; Poersch, Nerison Luiz (2008) [Artigo de periódico]
      O objetivo deste trabalho foi estimar o tamanho de amostra necessária para avaliar caracteres de cultivares de feijão (Phaseolus vulgaris L.) e verificar a variabilidade do tamanho de amostra entre cultivares e entre ...

    • Tamanho de amostra para a estimativa das médias decendiais de radiação solar global no Estado do Rio Grande do Sul 

      Cargnelutti Filho, Alberto; Matzenauer, Ronaldo; Maluf, Jaime Ricardo Tavares; Silva, Bruna Pires da (2007) [Artigo de periódico]
      Com o objetivo de verificar a variabilidade temporal e espacial do tamanho de amostra da radiação solar global média decendial, de 22 locais do Estado do Rio Grande do Sul, utilizaram-se séries de dados de radiação solar ...

    • Tangram : virtual integration of IP components in a distributed cosimulation environment 

      Souza, Uilian Rafael Feijo; Sperb, Josué Klafke; Mello, Braulio Adriano de; Wagner, Flavio Rech (2005) [Artigo de periódico]

    • Tapeworm eggs in a 270 million-year-old shark coprolite 

      Poinar Júnior, George O.; Figueiredo, Ana Emilia Quezado de; Pacheco, Ana Carolina L.; Horn, Bruno Ludovico Dihl; Schultz, Cesar Leandro (2013) [Artigo de periódico]
      Remains of parasites in vertebrates are rare from the Mesozoic and Paleozoic. Once most parasites that live in – or pass through – the gastrointestinal tract of vertebrates, fossil feces (coprolites) or even intestinal ...

    • Targeted drug delivery and treatment of endoparasites with biocompatible particles of pH-responsive structure 

      Mathews, Patrick Delgado; Patta, Ana Carolina Monge Fernandes; Gonçalves, João V.; Gama, Gabriella dos Santos; Garcia, Irene Teresinha Santos; Mertins, Omar (2018) [Artigo de periódico]
      Biomaterials conceived for vectorization of bioactives are currently considered for biomedical, biological, and environmental applications. We have produced a pH-sensitive biomaterial composed of natural source alginate ...

    • Target selection for the Apache Point Observatory Galactic Evolution Experiment (APOGEE) 

      Zasowski, G.; Johnson, J.A.; Frinchaboy, P.M.; Majewski, Steven Raymond; Nidever, D.L.; Rocha-Pinto, H.J.; Girardi, Leo Alberto; Andrews, Brett H.; Chojnowski, Stephen Drew; Cudworth, Kyle McC.; Jackson, Kelly M.; Munn, Jeffrey, A.; Skrutskie, M.F.; Beaton, Rachael Lynn; Blake, Cullen H.; Covey, Kevin; Deshpande, Rohit; Epstein, Courtney; Fabbian, Damian; Fleming, S.W.; García-Hernández, D. A.; Herrero Davó, Artemio; Mahadevan, Suvrath; Mészáros, S.; Schultheis, Mathias; Sellgren, K.; Terrien, Ryan C.; van Saders, Jennifer L.; Allende Prieto, Carlos; Bizyaev, D.; Burton, Adam; Cunha, Katia; Costa, Luiz N. da; Hasselquist, Sten; Hearty, Frederick R.; Holtzman, J.A.; García Pérez, Ana Elia; Maia, Marcio Antonio Geimba; O'Connell, Robert West; O’Donnell, C.; Pinsonneault, Marc H.; Santiago, Basilio Xavier; Schiavon, Ricardo P.; Shetrone, M.; Smith, Verne V.; Wilson, J.C. (2013) [Artigo de periódico]
      The Apache Point Observatory Galactic Evolution Experiment (APOGEE) is a high-resolution infrared spectroscopic survey spanning all Galactic environments (i.e., bulge, disk, and halo), with the principal goal of constraining ...

    • A tartaruga no espaço tridimensional 

      Oliveira, Paulo Werlang de; Rambo, Elisabete; Santos, Suzana Lima dos; Gravina, Maria Alice (1992) [Artigo de periódico]
      Resumo não disponível

    • Taxes, inequality, and equal opportunities 

      Iglesias, Jose Roberto; Cardoso, Ben-Hur Francisco; Goncalves, Sebastian (2023) [Artigo de periódico]
      Extreme inequality represents a grave challenge for impoverished individuals and poses a threat to economic growth and stability. Despite the fulfillment of affirmative action measures aimed at promoting equal opportunities, ...

    • Tbulk-BICS : a Built-in current sensor robust to process and temperature variations for soft error detection 

      Henes Neto, Egas; Kastensmidt, Fernanda Gusmão de Lima; Wirth, Gilson Inacio (2008) [Artigo de periódico]
      This paper presents a parameterized current sensor able to detect transient ionization in the silicon substrate. Each sensor is controlled by a set of trimming bits that can be used to attune the sensitivity of the sensor ...

    • Teaching wave-particle complementarity using the Virtual Mach-Zehnder Interferometer 

      Cavalcanti, Claudio Jose de Holanda; Ostermann, Fernanda; Netto, Jader da Silva; Lima, Nathan Willig (2020) [Artigo de periódico]
      We propose the teaching of wave-particle duality mediated by a software called Virtual Mach-Zehnder Interferometer, developed by our research group. We introduce the Dirac’s formalism contextualized on the Mach-Zehnder ...

    • Technologies for innovative monitoring to reduce blood pressure and change lifestyle using mobile phones in adult and elderly populations (TIM study) : protocol for a randomized controlled trial 

      Fuchs, Sandra Cristina Pereira Costa; Harzheim, Erno; Iochpe, Cirano; David, Caroline Nespolo de; Gonçalves, Marcelo Rodrigues; Sesin, Guilhermo Prates; Costa, Cássio Morosini; Moreira, Leila Beltrami; Fuchs, Flávio Danni (2018) [Artigo de periódico]
      Background: Hypertension is a growing problem worldwide, markedly in low- and middle-income countries, where the rate of control slightly decreased. The overall prevalence of hypertension in Brazil is 28.7% among adult ...

    • A técnica de difração de elétrons retro-espalhados (EBSD) em microscópio eletrônico de varredura (MEV) e sua aplicação no estudo de rochas deformadas 

      Morales, Luiz Fernando Grafulha; Hinrichs, Ruth; Fernandes, Luís Alberto D'Ávila (2007) [Artigo de periódico]
      The electron backscattered diffraction technique in the scanning electron microscope (EBSD/SEM) is based on the diffraction of a high-energy electron beam by the crystalline structure of a given material, in all possible ...

    • Técnicas de extração de informação para avaliação da qualidade de páginas web com o uso de ontologias 

      Lichtnow, Daniel; Oliveira, Jose Palazzo Moreira de; Lima, Jose Valdeni de; Proenca Junior, Mario Lemes; Barros, Rodolfo Miranda de; Adaniya, Mario Henrique A. C. (2010) [Artigo de periódico]
      A qualidade dos conteúdos das páginas Web pode ser determinada parcialmente através de indicadores como autoria da página, existência de referências as fontes e reputação do responsável pela publicação. Este artigo discute ...