نتایج جستجو برای: heat stress assessment

تعداد نتایج: 1159853  

Abbas Rahimi Foroushani, Ahad Heydari, Farideh Golbabaei, Mahmoud Ghazi-Khansari, Mohammad Reza Monazzam, Peymaneh Habibi, Seyed Nasser Ostad,

Introduction: Climate change and hot processes in the workplaces has led to an increase in the effects of heat stress on employed people, which has become a major concern, especially in tropical and subtropical countries. Early detection of biomarkers in induction of heat stress-related DNA damage can be used in the identification and evaluation of health and safety, including occupational heal...

ژورنال: طب کار 2016

Introduction: In many industrial and mining environments, heat stress not only leads to a lower productivity and poor morale, but also it increases the cost of accidents. Heat stress indices have been developed to assess heat stress at workplace. The objective of this study was to evaluate heat stress and to investigate the correlation between ESI index and some physiological parameters of work...

2010
Ting Wang Qiujing Yu Juan Chen Bo Deng Lihua Qian Yingying Le

BACKGROUND Under stress, AMP-activated protein kinase (AMPK) plays a central role in energy balance, and the heat shock response is a protective mechanism for cell survival. The relationship between AMPK activity and heat shock protein (HSP) expression under stress is unclear. METHODOLOGY/PRINCIPAL FINDINGS We found that heat stress induced dephosphorylation of AMPKα subunit (AMPKα) in variou...

Background: Heat stress is one of the most important environmental stressors challenging poultry production worldwide. Understanding and controlling environmental stressors is crucial for successful poultry production. OBJECTIVES: The aim of the present study was to investigate the effects of melatonin supplementation and darkness regime on reducing the negative effects of heat stress in broile...

2015
Pepijn A. J. van Oort Michiel E. de Vries Hiroe Yoshida Kazuki Saito

We integrated recent research on cardinal temperatures for phenology and early leaf growth, spikelet formation, early morning flowering, transpirational cooling, and heat- and cold-induced sterility into an existing to crop growth model ORYZA2000. We compared for an arid environment observed potential yields with yields simulated with default ORYZA2000, with modified subversions of ORYZA2000 an...

Journal: :Plant physiology 2002
Irina I Panchuk Roman A Volkov Friedrich Schöffl

To find evidence for a connection between heat stress response, oxidative stress, and common stress tolerance, we studied the effects of elevated growth temperatures and heat stress on the activity and expression of ascorbate peroxidase (APX). We compared wild-type Arabidopsis with transgenic plants overexpressing heat shock transcription factor 3 (HSF3), which synthesize heat shock proteins an...

Background & Aims of the Study: Nowadays, heat stress is one of the most harmful physical agents in workplaces. According to the consequences of heat stress and have no information about it in Qom dry cleaner units, Iran, this study have been designed to evaluate the heat stress among workers of dry cleaner units in Qom province of Iran, in Jul-Aug 2011. Materials & Metho...

Journal: :Journal of leukocyte biology 2007
Anne Sophie Hatzfeld-Charbonnier Audrey Lasek Laurent Castera Philippe Gosset Thierry Velu Pierre Formstecher Laurent Mortier Philippe Marchetti

Mild heat stress can modulate the activities of immune cells, including dendritic cells (DC) and theoretically, would constitute an innovative approach capable of enhancing the antitumor functions of DC. Therefore, we tested the effects of mild heat stress on the physiology and viability of human monocyte-derived DC, the major type of DC used in tumor immunotherapy trials. We first designed a h...

Journal: :iranian journal of veterinary research 2013
s. zhigang a. sheikhahmadi z. li

gamma aminobutyric acid (gaba) is one of the inhibitory neurotransmitters that may have the ability torelieve the intensity of stress. heat stress remains a major threat for duck production in summer in most areas of china. the current study was conducted to investigate the effect of dietary gaba on performanceparameters and plasma metabolites of heat exposed ducks. two thousand cherry valley d...

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