نتایج جستجو برای: temperature qual2

تعداد نتایج: 452920  

2009
Hong LI Zheng WANG Wenbin MEI

We acclimated adult males of three Eremias lizards from different latitudes to 28 °C, 33 °Cor 38 °Cto examine whether temperature acclimation affects their thermal preference and tolerance and whether thermal preference and tolerance of these lizards correspond with their latitudinal distributions. Overall , selected body temperature ( Tsel) and viable temperature range (VTR) were both highest ...

Journal: :The American journal of physiology 1990
A F Bennett

The thermal dependence of locomotor performance capacity, particularly speed and endurance, in vertebrate ectotherms is examined. Most studies have found an optimal speed for performance at relatively high body temperatures, close to upper lethal limits. These performance capacities decrease markedly at low body temperatures and may be compensated by increments in aggressive or evasive behavior...

Journal: :The Journal of experimental biology 1985
A F Bennett

Rates of force development, contraction and relaxation of vertebrate skeletal muscle are temperature dependent with Q10 values of approximately 2. Maximal forces developed have a low or negative thermal dependence. The functional basis of these patterns is poorly understood. Muscle performance generally does not acclimate. There appears to have been some evolutionary adaptation among species an...

Journal: :American journal of industrial medicine 2000
J L Bell L I Gardner D P Landsittel

BACKGROUND The association between slip and fall-related injuries and environmental temperature was examined for mostly enclosed (inside vehicles, machinery, or buildings), outdoor (outside, not enclosed), and enclosed/outdoor jobs in the coal mining industry to see if differences existed among the three work locations that had varying exposure to cold temperatures. METHODS Temperature data f...

Journal: :International journal of sports physiology and performance 2011
Jeremiah J Peiffer Chris R Abbiss

The purpose of this study was to examine the effect of environmental temperature on variability in power output, self-selected pacing strategies, and performance during a prolonged cycling time trial. Nine trained male cyclists randomly completed four 40 km cycling time trials in an environmental chamber at 17°C, 22°C, 27°C, and 32°C (40% RH). During the time trials, heart rate, core body tempe...

2017
Yunquan Zhang Chuanhua Yu Junzhe Bao Xudong Li

We examined the impact of extreme temperatures on mortality in 12 counties across Hubei Province, central China, during 2009-2012. Quasi-Poisson generalized linear regression combined with distributed lag non-linear model was first applied to estimate county-specific relationship between temperature and mortality. A multivariable meta-analysis was then used to pool the estimates of county-speci...

Journal: :journal of dentomaxillofacil radiology, pathology and surgery 0
fariborz vafaee department of prosthodontics, school of dental medicine, hamadan university of medical sciences (umsha), hamadan, iran. farnaz firouz department of prosthodontics, school of dental medicine, hamadan university of medical sciences (umsha), hamadan, iran. masoumeh khoshhal khojasteh zanjani department of periodontics, school of dental medicine, hamadan university of medical sciences (umsha), hamadan, iran. zahra moshiri department of prosthodontics, school of dental medicine, zanjan university of medical sciences (zums), zanjan, iran. hadi ranjzad department of prosthodontics, school of dental medicine, hamadan university of medical sciences (uhsha), hamadan, iran.

introduction: the purpose of this study was to compare the heat generated from different depths of an implant drilling site with and without a sleeve. materials and methods: in this study, 60 cortical bone samples were used and a load of 2.0 kg was applied. rilling for implant surgery, we used a diameter of 4.3 mm and a normal sleeve. heat was measured from 3 different depths(3,6, and 9 mms). d...

Journal: :international journal of automotive engineering 0
s.d. oduro

this thesis looked at the effect of clay and silt soil blocking the heat transfer area of the radiator and its effect on the engine coolant through the conduct of experiments and a mathematical model developed. the results indicated that the percentage area covered resulted in a proportional increase of the inlet and outlet temperatures of the coolant in the radiator. the mathematically model d...

Journal: :journal of occupational health and epidemiology 0
a esmaeili nadimi school of medicine, rafsanjan university of medical sciences, rafsanjan, iran m hasani rafsanjan university of medical sciences, rafsanjan, iran m allahtavakoli pharmacology-physiology research center, rafsanjan university of medical sciences, rafsanjan, iran e hakimizadeh pharmacology-physiology research center, rafsanjan university of medical sciences, rafsanjan, iran h bakhshi

background: the role of temperature changes, as an environmental risk factor, in the human health status has been investigated in recent studies. accordingly, the present two-year study was conducted to evaluate the incidence of myocardial infarction (mi) in warm and cold seasons in ali-ibn abi talib hospital, rafsanjan, iran. materials and methods: in this descriptive and cross-sectional study...

Journal: :آب و خاک 0
محمد موسوی بایگی بتول اشرف احمد نظامی

abstract consistent decreasing and increasing of temperature in the short-term period that is called freezing and thaw cycles is one of the important factors of damage to crop productions. in this research as to determine freezing and thaw cycles in the khorasan razavi province, the data of daily minimum and maximum temperatures of 9 synoptic stations was used over 20 statistic years (1989-2008...

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