نتایج جستجو برای: where outdoor temperatures exceed about 32c
تعداد نتایج: 1770549 فیلتر نتایج به سال:
Respect to the design guidelines of building environments is a complex subject that associated with cultural and economic development of human societies. Therefore, accurately measuring users’ favorites for environment design is a essential subject to optimize the relationship between environmental and personal parameters. This study with the purpose of investigation of patients satisfactory fr...
INTRODUCTION Blood pressure is a major cause of cardiovascular disease (CVD) and both may increase as outdoor temperatures fall. However, there are still limited data about seasonal variation in blood pressure and CVD mortality among patients with prior-CVD. METHODS We analysed data on 23 000 individuals with prior-CVD who were recruited from 10 diverse regions into the China Kadoorie Biobank...
Cutaneous malignant melanoma (CMM) has been increasing at a steady exponential rate in fair-skinned, indoor workers since before 1940. A paradox exists between indoor and outdoor workers because indoor workers get three to nine times less solar UV (290-400 nm) exposure than outdoor workers get, yet only indoor workers have an increasing incidence of CMM. Thus, another "factor(s)" is/are involve...
Exertional heat illness typically occurs over hours in younger athletic patients or military recruits who exercise at elevated temperatures for a sufficient period of time to cause the rate of heat production to exceed the capacity of the body to dissipate heat. Since the physiological response to exercise includes cutaneous vasodilation and sweating, any limitation of such a response can cause...
In this review we examine how self-paced performance is affected by environmental heat stress factors during cycling time trial performance as well as considering the effects of exercise mode and heat acclimatization. Mean power output during prolonged cycling time trials in the heat (≥30°C) was on average reduced by 15% in the 14 studies that fulfilled the inclusion criteria. Ambient temperatu...
BACKGROUND Cold-induced thermogenesis is known to improve insulin sensitivity, which may become increasingly relevant in the face of global warming. The aim of this study was to examine the relation between outdoor air temperature and the risk of gestational diabetes mellitus. METHODS We identified all births in the Greater Toronto Area from 2002 to 2014 using administrative health databases....
most of iranian oil terminals are located in tropical regions and consequently, disorders of heat stress among workers are expected. there are many heat stress indices with self-advantages and disadvantages which are used for evaluating the amount of heat stress. the aim of the present study was to evaluate the reliability of wbgt, et and cet indices by comparison to core body temperature in kh...
We consider the Ising systems in d dimensions with nearest-neighbor ferromagnetic interactions and long-range repulsive (antiferromagnetic) interactions which decay with a power, s, of the distance. The physical context of such models is discussed; primarily this is d = 2 and s = 3 where, at long distances, genuine magnetic interactions between genuine magnetic dipoles are of this form. We prov...
Vertical-cavity surface-emitting lasers (VCSELs) emitting at 894.6 nm wavelength have been fabricated for Cs-based atomic clock applications. For polarization control, a previously developed technique relying on the integration of a semiconducting surface grating in the top Bragg mirror of the VCSEL structure is employed. More specifically, we use a socalled inverted grating. The VCSELs are pol...
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