Limpar
7.962 resultados

Acesso aberto

Tipo do recurso

Tipo de base de dados

Ano de criação

Produção nacional

Revisado por pares

Áreas

Idioma

Editores

Livro

Project Gutenberg

Outros Acesso aberto

Arthur Lawrence,

Arthur Hamilton Lawrence B 1870. Biography, Journalism. Editor 'the Idler'. (Widower) 3 Children Letter. From Arthur Lawrence.

0000 - Gale Group | NCCO British Theatre

Artigo Acesso aberto Revisado por pares

Timothy M. Diette, Darrick Hamilton, Arthur H. Goldsmith, William Darity,

W.E.B. Du Bois asserted that black students are better served by attending predominantly black schools than hostile integrated schools in a context of racial discrimination. The conventional assumption is that black students benefit educationally by attending schools with more white peers, which have access to greater resources. However, the theory of the functionality of discrimination advances the idea that black students may face greater discrimination in school settings with numerous white peers ...

Tópico(s): Intergenerational and Educational Inequality Studies

2021 - Russell Sage Foundation | RSF The Russell Sage Foundation Journal of the Social Sciences

Outros Acesso aberto

Arthur Lawrence,

Arthur Hamilton Lawrence B 1870. Biography, Journalism. Editor 'the Idler'. (Widower) 3 Children Letter. From Arthur Lawrence. W. C.

0000 - Gale Group | NCCO British Theatre

Artigo Acesso aberto Revisado por pares

Yinfeng Zhang, Jessica M. Fogel, Xu Guo, William Clarke, Autumn Breaud, Vanessa Cummings, Erica L. Hamilton, Arthur Ogendo, Noel Kayange, Ravindre Panchia, Karen Dominguez, Ying Qing Chen, Theo Sandfort, Susan H. Eshleman,

Objective: To analyze antiretroviral drug use and HIV drug resistance among HIV-infected MSM and transgender women who were screened for participation in the HIV Prevention Trials Network 075 study. Methods: A qualitative assay was used to detect 20 antiretroviral drugs in five drug classes; this assay is based on liquid chromatography coupled with high-resolution accurate-mass mass spectrometry. HIV viral load testing was performed using the RealTime HIV-1 Viral Load Assay. HIV drug resistance ...

Tópico(s): HIV Research and Treatment

2018 - Lippincott Williams & Wilkins | AIDS

Outros Acesso aberto

Arthur Lawrence,

Arthur Hamilton Lawrence B 1870. Biography, Journalism. Editor 'the Idler'. (Widower) 3 Children Letter. From Arthur Lawrence.

0000 - Gale Group | NCCO British Theatre

Artigo Acesso aberto Revisado por pares

Jessica M. Fogel, Theo Sandfort, Yinfeng Zhang, Xu Guo, William Clarke, Autumn Breaud, Vanessa Cummings, Erica L. Hamilton, Arthur Ogendo, Noel Kayange, Ravindre Panchia, Karen Dominguez, Ying Qing Chen, Susan H. Eshleman,

Some HIV-infected individuals in research studies may choose not to disclose knowledge of their HIV status to study staff. We evaluated the accuracy of self-reported HIV status among African men and transgender women who have sex with men and who were screened for a research study. Sixty-seven of 183 HIV-infected participants reported a prior HIV diagnosis. Samples from the remaining 116 participants were tested for antiretroviral (ARV) drugs. Thirty-six of the 116 participants had ARV drugs detected, ...

Tópico(s): HIV Research and Treatment

2018 - Springer Science+Business Media | AIDS and Behavior

Outros Acesso aberto

Arthur Lawrence,

Arthur Hamilton Lawrence B 1870. Biography, Journalism. Editor 'the Idler'. (Widower) 3 Children Letter. From Arthur Lawrence. W. C.

0000 - Gale Group | NCCO British Theatre

Artigo Revisado por pares

Jason G. Hamilton, Arthur R. Zangerl, May R. Berenbaum, Jed P. Sparks, Lauren Elich, Alissa Eisenstein, Evan H. DeLucia,

The objective of this study was to determine the extent to which overall population sizes and community composition of arthropods in a naturally occurring forest understory are altered by elevated CO2. The Free Air Concentration Enrichment (FACE) method was used to fumigate large, replicated plots in the Piedmont region of North Carolina, USA to achieve the CO2 concentration predicted for 2050 (∼580 μl l−1). In addition, the extent to which unrestricted herbivorous arthropods were spatially delimited ...

Tópico(s): Plant and animal studies

2012 - Elsevier BV | Acta Oecologica

Outros Acesso aberto

Arthur Hamilton Lawrence B 1870. Biography, Journalism. Editor 'the Idler'. (Widower) 3 Children Letter. To Arthur H. Lawrence.

0000 - Gale Group | NCCO British Theatre

Artigo Acesso aberto Revisado por pares

Volker Krey, Josep G. Canadell, Nebojša Nakićenović, Yuichi Abe, Harald Andruleit, David Archer, Arnulf Grübler, Neil T M Hamilton, Arthur H. Johnson, Veselin B. Kostov, Jean‐François Lamarque, Nicholas Langhorne, E. G. Nisbet, Brian C. O’Neill, Keywan Riahi, Michael Riedel, Weihua Wang, V.S. Yakushev,

Methane hydrates, ice-like compounds in which methane is held in crystalline cages formed by water molecules, are widespread in areas of permafrost such as the Arctic and in sediments on the continental margins. They are a potentially vast fossil fuel energy source but, at the same time, could be destabilized by changing pressure–temperature conditions due to climate change, potentially leading to strong positive carbon–climate feedbacks. To enhance our understanding of both the vulnerability of ...

Tópico(s): Hydrocarbon exploration and reservoir analysis

2009 - IOP Publishing | Environmental Research Letters

Outros Acesso aberto

Arthur Hamilton Lawrence B 1870. Biography, Journalism. Editor 'the Idler'. (Widower) 3 Children

0000 - Gale Group | NCCO British Theatre

Artigo Revisado por pares

Darrick Hamilton, Arthur H. Goldsmith, William Darity,

The inter-racial marriage gap that opened in the past 50 years is generally attributed to a decline in the availability of young black marriageable men. We contend that the associated shortage of desirable men in the marriage market provides those black men who are sought after with the opportunity to attain a high status spouse, which has placed a premium on black women with lighter skin. We provide evidence, based on data drawn from the Multi City Study of Urban Inequality, consistent with this ...

Tópico(s): Gender, Labor, and Family Dynamics

2009 - Elsevier BV | Journal of Economic Behavior & Organization

Outros Acesso aberto

Arthur Hamilton Lawrence B 1870. Biography, Journalism. Editor 'the Idler'. (Widower) 3 Children

0000 - Gale Group | NCCO British Theatre

Artigo Revisado por pares

Darrick Hamilton, Arthur H. Goldsmith, William Darity,

Scholars have found that poor English proficiency is negatively associated with wages using self-reported measures. However, these estimates may suffer from misclassification bias. Interviewer ratings are likely to more accurately proxy employer assessment of worker language ability. Using self-reported and interviewer ratings from the Multi-City Study of Urban Inequality, the authors estimate the impact of English proficiency on wages for men ( n = 267) and women ( n = 178) with Mexican ancestry residing ...

Tópico(s): Migration, Ethnicity, and Economy

2008 - SAGE Publishing | Hispanic Journal of Behavioral Sciences

Outros Acesso aberto

Arthur Hamilton Lawrence B 1870. Biography, Journalism. Editor 'the Idler'. (Widower) 3 Children Letter.

0000 - Gale Group | NCCO British Theatre

Artigo Revisado por pares

Rachel G. Knepp, Jason G. Hamilton, Arthur R. Zangerl, May R. Berenbaum, Evan H. DeLucia,

To understand how the increase in atmospheric CO2 from human activity may affect leaf damage by forest insects, we examined host plant preference and larval performance of a generalist herbivore, Antheraea polyphemus Cram., that consumed foliage developed under ambient or elevated CO2. Larvae were fed leaves from Quercus alba L. and Quercus velutina Lam. grown under ambient or plus 200 microl/liter CO2 using free air carbon dioxide enrichment (FACE). Lower digestibility of foliage, greater protein ...

Tópico(s): Plant Parasitism and Resistance

2007 - Oxford University Press | Environmental Entomology

Outros Acesso aberto

Arthur Hamilton Lawrence B 1870. Biography, Journalism. Editor 'the Idler'. (Widower) 3 Children Jul. 20 1917 Rejected 'Authorship ...

0000 - Gale Group | NCCO British Theatre

Artigo Acesso aberto Revisado por pares

Eileen Lüders, Katherine L. Narr, Robert M. Bilder, Paul M. Thompson, Philip R. Szeszko, Liberty S. Hamilton, Arthur W. Toga,

Callosal morphology is thought to reflect the capacity for inter-hemispheric communication and thus, in addition to other cerebral characteristics, may serve as a neuroanatomical substrate of general intellectual capacity. We applied novel computational mesh-based methods to establish the presence and direction of correlations between intelligence and callosal thickness at high spatial resolution while removing the variance associated with overall brain size. Within healthy subjects (n=62), and within ...

Tópico(s): Advanced Neuroimaging Techniques and Applications

2007 - Elsevier BV | NeuroImage

Outros Acesso aberto

Arthur Hamilton Lawrence B 1870. Biography, Journalism. Editor 'the Idler'. (Widower) 3 Children Letter.

0000 - Gale Group | NCCO British Theatre

Artigo Acesso aberto Revisado por pares

E. Luders, Katherine L. Narr, Robert M. Bilder, Philip R. Szeszko, M. N. Gurbani, Liberty S. Hamilton, Arthur W. Toga, Christian Gaser,

The pronounced convolution of the human cortex may be a morphological substrate that supports some of our species' most distinctive cognitive abilities. Therefore, individual intelligence within humans might be modulated by the degree of folding in certain cortical regions. We applied advanced methods to analyze cortical convolution at high spatial resolution and correlated those measurements with intelligence quotients. Within a large sample of healthy adult subjects (n = 65), we detected the most ...

Tópico(s): Cognitive Abilities and Testing

2007 - Oxford University Press | Cerebral Cortex

Outros Acesso aberto

Arthur Hamilton Lawrence B 1870. Biography, Journalism. Editor 'the Idler'. (Widower) 3 Children Letter. W. C.

0000 - Gale Group | NCCO British Theatre

Artigo

Christopher D. McKenna,

... management consulting firms like McKinsey & Company; Booz, Allen & Hamilton; and Arthur D. Little, Inc., which have advised large corporations ...

Tópico(s): Accounting and Organizational Management

2007 - Association of College and Research Libraries | Choice Reviews Online

Outros Acesso aberto

Arthur Hamilton Lawrence B 1870. Biography, Journalism. Editor 'the Idler'. (Widower) 3 Children Letter.

0000 - Gale Group | NCCO British Theatre

Artigo Revisado por pares

Sally Bolton, Kirsty Greenwood, Nicola B. Hamilton, Arthur M. Butt,

Abstract The factors regulating astroglial resting membrane potential (RMP) are unresolved. Here, we have examined developmental, morphological, and intracellular factors that may regulate the RMP in astrocytes of isolated intact optic nerves of rats and mice aged postnatal day (P3) to adult. The astroglial RMP ranged from −25 to −85 mV, independent of age and morphological phenotype. There was a developmental negative shift in the astroglial RMP from a non‐Gaussian distribution in perinatal nerves, ...

Tópico(s): Neurogenesis and neuroplasticity mechanisms

2006 - Wiley | Glia

Outros Acesso aberto

Arthur Hamilton Lawrence B 1870. Biography, Journalism. Editor 'the Idler'. (Widower) 3 Children

0000 - Gale Group | NCCO British Theatre

Artigo Revisado por pares

May R. Berenbaum, Jeffrey S. Pippen, Mihai Aldea, Evan H. DeLucia, Jason G. Hamilton, Arthur R. Zangerl,

Tópico(s): Fire effects on ecosystems

2004 - Springer Science+Business Media | Oecologia

Outros Acesso aberto

Arthur Hamilton Lawrence B 1870. Biography, Journalism. Editor 'the Idler'. (Widower) 3 Children

0000 - Gale Group | NCCO British Theatre

Artigo Revisado por pares

Benjamin Armbruster, Russell J. Hamilton, Arthur K Kuehl,

There are three ways to determine the spectrum of a clinical photon beam: direct measurement, modelling the source and reconstruction from ion-chamber measurements. We focus on reconstruction because the necessary equipment is readily available and it provides independent confirmation of source models for a given machine. Reconstruction methods involve measuring the dose in an ion chamber after the beam passes through an attenuator. We gain information about the spectrum from measurements using ...

Tópico(s): Advanced X-ray and CT Imaging

2004 - IOP Publishing | Physics in Medicine and Biology