نتایج جستجو برای: extreme condition

تعداد نتایج: 398238  

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1970
D M Lindstrom J W Drake

In contrast to observations in bacteria and fungi, frameshift mutations in bacteriophage T4 do not arise during genetic recombination. Nascent mutants, captured in the heterozygous condition, exhibit properties which indicate that the new lesions are located at the extreme tips of the chromosomes, and are segregated by a combination of recombination and replication.

ژورنال: سلامت کار ایران 2016

Background and aims: The teachers assign very high amount of time to job activities arbitrarily and voluntarily, and this fact may result addiction to work in them, that continuity of these situations will have a positive and negative outcomes. The main goal of current study is evaluating the relationship between extreme dependence to work with job stress and job burnout in elementary school te...

2018
Bradley S Law Mark Chidel Peter R Law

Long-term data are needed to explore the interaction of weather extremes with habitat alteration; in particular, can 'refugia' buffer population dynamics against climate change and are they robust to disturbances such as timber harvesting. Because forest bats are good indicators of ecosystem health, we used 14 years (1999-2012) of mark-recapture data from a suite of small tree-hollow roosting b...

Journal: :Physical review. D, Particles and fields 1992
Kallosh Linde Ortín Peet Van Proeyen A

In supersymmetric theories the mass of any state is bounded below by the values of some of its charges. The corresponding bounds in the case of Schwarzschild (M & 0 ) and Reissner-Nordstrom (M & ~q~) black holes are known to coincide with the requirement that naked singularities be absent. Here we investigate [U(1)j charged dilaton black holes in this context. The extreme solutions are shown to...

Journal: :مدیریت صنعتی 0
غلامرضا اسماعیلیان استادیار گروه مهندسی صنایع دانشگاه پیام نور تهران، تهران، ایران فروزان لورک زاده دانشجوی کارشناسی ارشد، مهندسی صنایع، گروه مهندسی صنایع، دانشگاه پیام نور مرکز شهرری رحمان زارعیان دانشجوی کارشناسی ارشد مهندسی سیستم های اقتصادی- اجتماعی، دانشکدۀ مهندسی صنایع و سیستم ها، دانشگاه تهران، تهران، ایران

maintenance is one of the inseparable parts of each industry and relations between this part and others consist of many dynamics and feedbacks. by this regard systems dynamic is a tool that can be used to analyze this part. in this paper for a company that produces wire and cable, cause and effect (feedbacks) between maintenance and others part are modeled. after creating stock-flow diagram, mo...

2008
E. Morin

Analysis of extreme hydrometeorological events is important for characterizing and better understanding the meteorological conditions that can generate severe rainstorms and the consequent catastrophic flooding. According to several studies (e.g., Alpert et al., 2004; Wittenberg et al., 2007), the occurrence of such extreme events is increasing over the eastern Mediterranean although total rain...

2013
Wen Li

In this talk, we presented the Birkhoff-von Neumann type theorem for a multistochastic tensors. In particular, we give a necessary and sufficient condition such that a multi-stochastic tensor is a convex combination of finitely many permutation tensors. It is well-known that extreme points in the set of doubly-stochastic matrices are just permutation matrices. However, we find that extreme poin...

2017
Vincent L. Mendy Rodolfo Vargas Gerri Cannon-Smith Marinelle Payton

INTRODUCTION In 2015, about 1.5 million adults in Mississippi were overweight or obese. Obesity is associated with increased risk for diabetes and cardiovascular problems. We examined trends in the prevalence of overweight, obesity, and extreme obesity from 2001 through 2010 and 2011 through 2015. METHODS We used data from the Mississippi Behavioral Risk Factor Surveillance System to analyze ...

Journal: :Orthopedics 2012
Ryan M Garcia Jonathan Belding Henry H Bohlman

The incidence of chronic and debilitating conditions in the aging population is steadily increasing, and the treatment of extreme elderly patients with spinal conditions can be challenging. Spinal stenosis and spondylolisthesis can dramatically affect patient quality of life, and patients commonly seek a surgical solution for their condition. Many extreme elderly patients are cautioned against ...

Payan, A., Rahmani Parchikolaei, B.,

This article will address the extension of super efficiency method to rank the non-extreme efficient decision making units. Many methodologies have introduced methods that can rank efficient units, amongst which, the super efficiency method due to its ability to provide meaningful geometrical as well as economic analyses has a significant place. But the common problem with all the super efficie...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید