نتایج جستجو برای: pi 544025 17
تعداد نتایج: 316440 فیلتر نتایج به سال:
Human immunodeficiency virus (HIV)-infected individuals often demonstrate neuropsychiatric impairment; however, it is unclear how brain metabolism may be altered in such patients. We used in vivo phosphorus 31 magnetic resonance spectroscopy to noninvasively assess brain energy and phospholipid metabolism by measuring brain concentrations of adenosine triphosphate (ATP), phosphocreatine (PCr), ...
We point out kaon decays to multiple charged leptons as a novel probe of light dark particles $X$. Previously neglected channels, such ${K}^{+}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{+}(XX\ensuremath{\rightarrow}2({e}^{+}{e}^{\ensuremath{-}}))$, ${K}_{L}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{0}(XX\ensuremath{\rightarrow}2({e}^{+}{e}^{\ensuremath{-}}))$, and ${K}_{S}\ensuremath{\rightar...
Baroreflex sensitivity expressed in ms/mmHg (BRS) is correlated with the pulse interval (PI) in healthy subjects, but is PI-independent when expressed in Hz/mmHg (BRSf). The relationship between the ejection fraction (EF) and BRS and BRSf values in patients after myocardial infarction (MI) was the aim of the present study. BRS and BRSf were determined by spectral analysis of PI and systolic blo...
inflammatory component of IBS. A proportion of patients with diarrhea-predominant IBS recall acute infectious enteritis as a boot for the onset of their symptoms, and 7%-33% of patients with acute bacterial enteritis will experience IBS symptoms for over 6 months. A chronic latent inflammation has been documented in mucosal biopsies of these patients. Post-infectious IBS (PI-IBS) has been linke...
موضوع پایداری در میکروشبکه ها همچون سیستم های قدرت سنّتی، مولفه مهمی برای مدیریت انرژی و برنامه ریزی می باشد. پایداری ولتاژ و فرکانس از مهمترین مواردی است که اخیراً در زمینه میکروشبکه ها مطالعه شده است. هدف از انجام این پایان نامه، طراحی و مدلسازی عناصر و کنترلرها و ارائه روش های جدیدی برای کنترل ولتاژ در یک میکروشبکه هیبرید ac/dc و در شرایط وقوع اغتشاشات مختلف می باشد. همچنین توانایی این روش ها ...
Using psi(2S)-->pi;{+}pi;{-}J/psi, J/psi-->gammaeta;{'} events acquired with the CLEO-c detector at the CESR e;{+}e;{-} collider, we make the first observations of the decays eta;{'}-->pi;{+}pi;{-}pi;{0} and eta;{'}-->pi;{+}pi;{-}e;{+}e;{-}, measuring absolute branching fractions (37_{-9};{+11}+/-4)x10;{-4} and (25_{-9};{+12}+/-5)x10;{-4}, respectively. For eta;{'}-->pi;{+}pi;{-}pi;{0}, this re...
The three title isomers, 4-, (I), 3-, (II), and 2-fluoro-N'-(4-pyridyl)benzamide, (III), all C12H9FN2O, crystallize in the P2(1)/c space group (No. 14) with similar unit-cell parameters and are isomorphous and isostructural at the primary hydrogen-bonding level. An intramolecular C-H...O=C interaction is present in all three isomers [C...O = 2.8681 (17)-2.884 (2) A and C-H...O117-118 degrees ],...
Anterior chamber inoculation of 10(4) PFU of the MS strain of HSV-2 resulted in physiologic and morphologic changes in the retina of the inoculated and the uninoculated eyes. In the inoculated eyes, electroretinogram (ERG) depression was first detected on day 3 and abolished ERGs on day 8 postinoculation (PI). The decrease in the ERGs was rapid and the time course was similar for all of the eye...
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