نتایج جستجو برای: pi 3146650 15
تعداد نتایج: 538168 فیلتر نتایج به سال:
G. Bonvicini, D. Cinabro, M. Dubrovin, A. Lincoln, D. M. Asner, K. W. Edwards, P. Naik, R. A. Briere, T. Ferguson, G. Tatishvili, H. Vogel, M. E. Watkins, J. L. Rosner, N. E. Adam, J. P. Alexander, D. G. Cassel, J. E. Duboscq, R. Ehrlich, L. Fields, R. S. Galik, L. Gibbons, R. Gray, S. W. Gray, D. L. Hartill, B. K. Heltsley, D. Hertz, C. D. Jones, J. Kandaswamy, D. L. Kreinick, V. E. Kuznetsov,...
BACKGROUND Interscalene nerve blocks provide adequate analgesia, but there are no objective criteria for early assessment of correct catheter placement. In the present study, pulse oximetry technology was used to evaluate changes in the perfusion index (PI) in both blocked and unblocked arms, and changes in the plethysmographic variability index (PVI) were evaluated once mechanical ventilation ...
Objective. Pancreatitis is an infrequent complication among patients with cystic fibrosis (CF). It has mainly been reported for patients with pancreatic sufficiency (PS). Previous studies involved only a small number of patients because they contained data from single centers. The aim of this study was to evaluate the incidence of pancreatitis in a large heterogeneous CF population, to determin...
BACKGROUND The perfusion index (PI), derived from the pulse oximetry signal, has been shown to be an accurate predictor for identifying high illness severity in neonates. The plethysmographic variability index (PVI) is a measure of the dynamic change in PI occurring during a complete respiratory cycle. OBJECTIVES The aim of this study was to establish the reference range of PVI in spontaneous...
Validation of a 5-covariate prognostic index (PI;) (performance status, stage, residual tumor size, histolÃ3gica!grade, and ascitcs) derived from a group of 268 Dutch patients with advanced ovarian carcinoma was performed in a similar study of 301 Danish patients. Analysis of survival suggested an alternative 4-covariate PI (performance status, residual tumor size, age, weight/body surface) for...
Inositol lipids account for 15% of the total cellular phospholipids of Leishmania donovani promastigotes. Four major inositol lipids were identified and characterized: phosphatidylinositol (PI), phosphatidylinositol phosphate (PI-P), phosphatidylinositol diphosphate (PI-P2), and an inositol sphingophospholipid (InSL). Diacyl and alkyl acyl PI were identified. The major esterified fatty acids of...
BACKGROUND Analysis of spontaneous fluctuations in systolic arterial pressure (SAP) and pulse interval (PI) reveals the occurrence of sequences of consecutive beats characterized by SAP and PI changing in the same (+PI/+SAP and -PI/-SAP) or opposite (-PI/+SAP and +PI/-SAP) direction. Although the former reflects baroreflex regulatory mechanisms, the physiological meaning of -PI/+SAP and +PI/-SA...
مدلسازی پیلهایسوختی شده است. اما بسیاری از این روشها به طور عملی و آزمایشگاهی بررسی نشده است و هنوز کمبود مطالعات موشکافانه روی پارامترها و روابط مربوط به متغیرهای عملکرد مشاهده می شود. از سوی دیگر، تنها مدلها و روشهای کمی به طور مخصوص به طراحی کنترلکننده پرداختهاست. مدلی که در این جا استفاده شدهاست، یک مدل به منظور تسهیل شبیهسازی سیستم قدرت همراه با پیلسوختی است و تنها نیاز به چند متغیر ا...
In this paper, novel polyimide/cellulose/TiO2 bionanocomposites (PI/BNCs) were prepared via a simple and inexpensive ultrasonic irradiation process. PI was synthesized by direct polycondensation reaction of novel monomer dianhydride with 4-(2-(4-aminophenyl)-1,1,1,3,3,3-hexafluoropropan-2-yl)benzenamine. Due to the high surface energy and tendency for agglomeration the surface of nanoparticles ...
Persistently infected (PI) cattle are the reservoir of bovine viral diarrhea virus (BVDV), yet data describing BVDV transient infections (TI) among non-PI populations are minimal. Study objectives consisted of: 1. Estimating the onset and duration of TI based on serum VI and rRT-PCR, and 2. Determination of the potential of TI cattle to shed BVDV. Two 21-day studies were performed where one PI ...
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