نتایج جستجو برای: 969
تعداد نتایج: 996 فیلتر نتایج به سال:
It has been proposed that multiple rare variants in numerous genes collectively account for a substantial proportion of multifactorial inherited predisposition to a variety of diseases, including colorectal adenomas (CRA). We have studied this hypothesis by sequencing the adenomatous polyposis coli (APC) gene in 691 unrelated North American patients with CRAs and 969 matched healthy controls. R...
In order to investigate the origin of the phase transition observed in NaV2O5, as well as its electronic structure, we have measured Raman intensities as a function of the laser wavelength above and below the phase transition temperature. In the polarized Raman spectra at room temperature we observe resonant enhancement of the 969 cm phonon mode when the laser energy approaches 2.7 eV, presumab...
PURPOSE The aim of this study was to develop and test an explanatory model for sleep disorders in people with cancer. A hypothetical model was constructed on the basis of a review of previous studies, literature, and sleep models, and 10 latent variables were used to construct a hypothetical model. METHODS Data were collected from April 19 to June 25, 2010, using self-report questionnaires. T...
PURPOSE To evaluate the ability of coronary computed tomographic angiography (CCTA) to predict the need of coronary revascularization in symptomatic patients with stable angina who were referred to a cardiac catheterization laboratory for coronary revascularization. MATERIALS AND METHODS Pre-angiography CCTA findings were analyzed in 1846 consecutive symptomatic patients with stable angina, w...
Atmospheric methane (CH4) continues to increase, but there are multiple anthropogenic source categories that can be targeted for cost-effective emissions reduction. Cities emit CH4 the atmosphere from a mixture of sources, which include, not limited to, fugitive natural gas distribution systems, wastewater treatment facilities, waste-and rainwater networks, and landfills. Therefore, target miti...
In the present study, the correlation of polymorphisms of the apolipoprotein E (apoE) gene with the susceptibility of essential hypertension (EH) was investigated. Single nucleotide polymorphisms of the apoE gene at the -491 A>T, +969 C>G, and +2836 G>A sites were determined in 221 non-EH individuals and 109 subjects with EH of Chinese Hui ethnicity using polymerase chain reaction-restriction f...
We explore choices of boundary conditions within pressure convection–diffusion preconditioners for the incompressible Navier–Stokes equations. While these methods have been shown to be efficient, choosing the proper boundary conditions for the preconditioning operator is not well understood. In this paper, we first explore the effect of having “ideal” boundary conditions within the precondition...
We investigated the intensity noise spectra of the single beam of a pumpenhanced continuous-wave (cw) optical parametric oscillator (OPO), which was used to generate quantum correlated twin beams, as a function of the pump power. With a triply (pump-, signal-, and idler-) resonant cavity, the oscillation threshold of our OPO was about 8.5±1.3 mW and the measured slope conversion efficiency was ...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید