نتایج جستجو برای: neural change after stress

تعداد نتایج: 2757281  

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2005
Jiongjiong Wang Hengyi Rao Gabriel S Wetmore Patricia M Furlan Marc Korczykowski David F Dinges John A Detre

Despite the prevalence of stress in everyday life and its impact on happiness, health, and cognition, little is known about the neural substrate of the experience of everyday stress in humans. We use a quantitative and noninvasive neuroimaging technique, arterial spin-labeling perfusion MRI, to measure cerebral blood flow (CBF) changes associated with mild to moderate stress induced by a mental...

Change detection is done with the purpose of analyzing two or more images of a region that has been obtained at different times which is Generally one of the most important applications of satellite imagery is urban development, environmental inspection, agricultural monitoring, hazard assessment, and natural disaster. The purpose of using deep learning algorithms, in particular, convolutional ...

ژورنال: سلامت کار ایران 2017

Background and aims: Job stress is a major problem in the modern world and a main concern for organizations. Rescue workers, including firefighters constantly exposed to toxins, high emotional shock and stress resulted from physical injuries while performing their duty. Development of job stress in firefighters decreases occupational motivation and ultimately leads to productivity reduction. Th...

Journal: :iranian journal of public health 0
majid habibi mohraz asghar ghahri mehrdad karimi farideh golba­baei

background: the workers who are working in the open and warm environments are at risk of health effects of climate and heat changes. it is expected that the risk is increase with global warming. this study aimed to investigate the changes of wet bulb globe temperature (wbgt) index in the past and to predict their trend of future changes in tehran, capital of iran. methods: the meteorological da...

Journal: :Journal of research in personality 2016
Grant S Shields Loren L Toussaint George M Slavich

Although research has shown that certain aspects of personality can change over time, the determinants of such change remain unclear. Stress alters neural dynamics and precipitates disorders that shape personality traits involving negative affectivity. In this study, therefore, we assessed the perceived stress and pessimism levels of 332 young, middle-aged, and older adults for five weeks to ex...

Journal: :Endocrinology 2006
Russell D Romeo Rudy Bellani Ilia N Karatsoreos Nara Chhua Mary Vernov Cheryl D Conrad Bruce S McEwen

Both the magnitude and the duration of the hormonal stress response change dramatically during neonatal development and aging as well as with prior experience with a stressor. However, surprisingly little is known with regard to how pubertal maturation and experience with stress interact to affect hypothalamic-pituitary-adrenal axis responsiveness. Because adolescence is a period of neurodevelo...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده علوم پزشکی 1389

introduction: diabetes mellitus is an growing national and international public health concern. the number of people affected by diabetes in world by 2030 will be 69% in developing countries. regular physical activity plays a key role in the management of type 2 diabetes melitus, particularly glycemic control. it has been recommended that peoples with type 2 diabetes participate in moderate-int...

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