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تعداد نتایج: 175 فیلتر نتایج به سال:
WASP-12b stands out among the planets of its class hot Jupiters because observed fast orbital decay attributed to tidal dissipation. The measured rate period change is P?orb=?29±3ms/yr= ?(9.2±1.0)×10?10s/s. In literature heretofore, all attempts explain this high were based on assumption that evolution dominated by tides in star. Since modified quality factor yellow dwarfs insufficient warrant ...
Abstract African Americans (AA) are more likely to experience stressors due racial discrimination and segregated neighborhoods, potentially contributing higher risk for dementia. We investigated the association between cognitive function in older AA adults through cumulative stress burden (CSB) indices. Stressors domains were measured 253 participants >50 years, recruited from primarily ...
راه اندازی یخ در ابر از مهمترین زمینه های پژوهش های هواشناسی در خلال 50 سال گذشته بود ه است که مورد توجه مخصوص دانشمندان تعدیل ابر می باشد. با وجود اینکه موفقیتهای زیادی در این زمینه ها به دست آمده هنوز ابهامات بسیاری در مورد فرایند های هسته بندی وجود دارد. یکی ازمهمترین منابع تولید یخ در ابر‘ فرایند تکثیر یخ هالت- موساپ(HM) می باشد. در این پژوهش فرایند(HM) در دمای سطح برفک نسبتا ثابت (Ts ?-5c...
BACKGROUND Diabetes and retinopathy have been considered as risk factors of cognitive impairment (CI) in previous studies. We investigated both of these two factors and their relationship with global and specific cognitive functions in end stage renal disease patients under peritoneal dialysis (PD). METHODS In this multicenter cross-sectional study, 424 clinically stable patients were enrolle...
Methods Ten young adults (mean age 26.1 ± 8.4 years); seven men, were prospectively enrolled. All examinations were performed with a 1.5T scanner (Siemens Avanto) and 32-channel phased array coil (Rapid MRI, Columbus). Ventricular volumes were obtained at rest with gated (SSFP) and real-time imaging (TSENSE). Nine to 10 contiguous short axis and axial slices provided coverage of left and right ...
AIM To investigate whether hormonal fluctuations during the menstrual cycle affect corticospinal excitability, intracortical inhibition (ICI) or facilitation (ICF) in primary motor cortex, and also whether the hormonal fluctuations have any effect on manual dexterity in neurologically intact women. MATERIALS AND METHODS Twenty volunteers (10 Female, 10 Male) were included in this study. The l...
Little is known about the cognitive factors associated with adherence to antiestrogen therapy. Our objective was to investigate the association between domain-specific cognitive function and adherence among women in a clinical prevention trial of oral antiestrogen therapies. We performed a secondary analysis of Co-STAR, an ancillary study of the STAR breast cancer prevention trial in which post...
This thesis investigates the feasibility of utilizing a run-time partially reconfigurable FPGA to implement a sequence of high-speed digital signal processing filters. Rather than reconfiguring the entire device to modify part of a configuration, a modular architecture is designed to allow smaller segments of the device to be individually reconfigured while the remainder of the device continues...
Non-preemptive multi-processor platforms are increasingly being developed to support the performance requirements of modern systems with multiple applications. Due to a huge number of possible combinations of these multiple applications, it becomes a challenge to predict their performance in advance. This becomes even more important when applications may be dynamically started and stopped in th...
Middleware such as CORBA provides a software architecture that supports integration of legacy software components with new software in a way that is modular, scalable, and evolvable. However, these benefits come with high run-time overhead. In dynamic hard realtime distributed embedded systems, usually a central power manager calculates and issues all the power commands. The power manager must ...
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