نتایج جستجو برای: sleepers
تعداد نتایج: 981 فیلتر نتایج به سال:
Understanding how stimulant drugs affect memory is important for understanding their addictive potential. Here we examined the effects of acute d-methamphetamine (METH), administered either before (encoding phase) or immediately after (consolidation phase) study on memory for emotional and neutral images in healthy humans. Young adult volunteers (N = 60) were randomly assigned to either an enco...
INTRODUCTION This study explored the associations between sleep duration and emotion regulation among urban black women (mean age=59 ± 7 yrs). METHOD Eligible women (n=523) provided sociodemographic data during face-to-face interviews. We used the Comprehensive Assessment and Referral Examination Physical to measure health status; women also estimated their habitual sleep duration. We utilize...
The properties of concrete with complex chemical additives to improve the technology for production sleepers from prestressed are discussed in article. With use under heat-moisture processing, at a temperature 40°C, there was no decrease strength cement stone and sufficient initial stage curing period, 44.7 MPa; determined addition Glenium 27 S - 1.0% hardening accelerator Master X -Seed 100 1....
In this research, the structural behavior of timber and concrete sleepers in a standard railway turnout is evaluated, in the case of raising speed. In approaching this evaluation, current practices in the structural analysis of sleepers are surveyed and then, the sensitivity analysis with ABAQUS software is made based on selected criteria (bending and shear stresses as well as contact pressure)...
BACKGROUND Epidemiologic studies show a curvilinear relationship between inadequate sleep (< 7 or > 8 hours) and obesity (Body Mass Index > 30 kg/m2), which have enormous public health impact. METHODS Using data from the National Health Interview Survey, an ongoing nationally representative cross-sectional study of non-institutionalized US adults (≥18 years) (1977 through 2009), we examined t...
OBJECTIVE Both the incidence and the prevalence of end-stage renal disease (ESRD) in elderly patients are increasing worldwide. Elderly ESRD patients have been found to be more prone to depression than the general population. There are many studies that have addressed the relationship between sleep quality (SQ), depression, and health related quality of life (HRQoL) in ESRD patients, but previo...
BACKGROUND/AIMS Poor sleep quality (SQ) is associated with increased cardiovascular mortality and morbidity. Additionally, asymmetric dimethylarginine (ADMA) is an independent predictor of cardiovascular mortality and morbidity. However, no sufficient data regarding the relationship between ADMA levels and SQ have been reported. The goal of the current study was to evaluate the association betw...
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