غلاف سوخت‌های هسته‌ای یکی از مهم‌ترین اجزا رآکتور محسوب می‌شود. این غلاف‌ها آلیاژ زیرکونیم ساخته می‌شوند؛ اما خواص ترمومکانیکی چندان مناسبی ندارند؛ لذا در پژوهش سعی شده با تغییر مواد به‌کاررفته NuScale به یک نوترونیکی و مناسب دست پیدا شود. قلب موجب ضریب تکثیر مؤثر طول بازه سوخت‌گذاری می‌گردد. شبیه‌سازی که M5 بهره می‌برد به‌عنوان معیار هم‌­چنین همراه سه نوع دیگر آلیاژهای رایج دو آن FeCrAl است، د...

1 Presented at the 58th Annual Meeting of the American Asso ciation for Cancer Research, April 1967, Chicago, Illinois. The work of the author and his associates was supported by grants from the Swedish Cancer Society, the Medical Research Council, by Grants CA-04747 and CA-03700 from the National Cancer In stitute, USPHS, from the Damon Runyon Memorial Fund (DRG598), the Jane Coffin Childs Mem...

for Scientific Research, and the "Badische Landesverband" for cancer research, and in part by a grant G-23739 of the National Science Foundation. Part of this work was submitted as a thesis to the Faculty of Medicine of the University of Freiburg (Br.) in behalf of B. Langer. t Research Career Awardee of the USPHS; on sabbatical leave from the University of California between June and October, ...

Last version received on 11/8/2000. Approved on 21/8/2000. This work has been supported by the following USPHS grants: MH-70009, MH-30929, MH-49351, HD-03008, MO1-RR-06022 and by a grant from the Tourette Syndrome Association. Inexistent conflict of interests. Contemporary approaches to the treatment of tics in Tourette syndrome Abordagem contemporânea para o tratamento de tiques na síndrome de...

The Advisory Committee on Immunization Practices (ACIP) is chartered as a federal advisory committee to provide expert external advice to CDC and the Secretary of the U.S. Department of Health and Human Services (DHHS) on the use of vaccines in the civilian population of the United States. This report summarizes the evolution of ACIP over the 50 years since its establishment in 1964 by the Surg...

OBJECTIVES In most retrospective studies, the clinical performance of restorations had not been considered in survival analysis. This study investigated the effect of including the clinically unacceptable cases according to modified United States Public Health Service (USPHS) criteria into the failed data on the survival analysis of direct restorations as to the longevity and prognostic variabl...

The aim of this prospective and blind clinical trial was to assess the effectiveness of sealing localized marginal defects of amalgam restoration that were initially scheduled to be replaced. A cohort of twenty six patients with 60 amalgam restorations (n=44Class I and n=16Class II), that presented marginal defects deviating from ideal (Bravo) according to USPHS criteria, were assigned to eithe...

Outcome-dependent, two-phase sampling designs can dramatically reduce the costs of observational studies by judicious selection of the most informative subjects for purposes of detailed covariate measurement. Here we derive asymptotic information bounds and the form of the efficient score and influence functions for the semiparametric regression models studied by Lawless, Kalbfleisch, and Wild ...

This paper is an attempt to analyse the water quality of river Ganga in Allahabad district. Water samples were collected from RasoolabadGhat to ChatnaagGhat from five sampling sites in the year 2012-2013. Ten water quality parameters for all the sites were estimated by adopting the standard methods and procedures.The results revealed that the average pH value was measured as 8.07±0.44 mg/L, Ele...