نتایج جستجو برای: mountain building activity
تعداد نتایج: 1362442 فیلتر نتایج به سال:
Background: The existence of some radionuclides in soil and some building materials produce a β-γ radiation field, which in some regions the exposure of these radionuclides to human is high. Materials and Methods: The air-absorbed dose, indoor and outdoor annual effective dose of soil and some building material samples (ceramic, granite, gypsum, etc.). The samples were collected from 3...
abstract the purpose of this study is twofold: on the one hand, it is intended to see what kind of noticing-the –gap activity (teacher generated vs. learner generated) is more efficient in teaching l2 grammar in classroom language learning. on the other hand, it is an attempt to determine which approach of the noticing-the-gap- activity is more effective in the long- term retention of grammar...
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...
Evaluation of WRF performance for depicting orographically-induced gravity waves in the stratosphere
Orographically-induced gravity (buoyancy) waves can propagate through the tropopause to the stratosphere causing disruption to high altitude aircraft operations. High altitude turbulence (HAT) was first researched using U-2 aircraft in the mid-1960s and reported by Crooks (1965). He observed that HAT from mountain wave activity was more severe than turbulence associated with jet streams or conv...
BACKGROUND AND PURPOSE At high altitudes barometric pressure is reduced and, thus, less oxygen is inhaled. Reduced oxygen concentration in brain tissue can lead to cerebral damage and neurological and cognitive deficits. The present study was designed to explore the effects of high-altitude exposure using a quantitative MRI technique, voxel-based morphometry. METHODS We studied nine world-cla...
Manasi River basin is located in the north foot of Tianshan Mountain, south edge of Zhunger Basin, central-north Xinjiang province, with typical arid features of northern China. As the pressure on water resources in Manasi river basin is mounting because of rapid economic development, its conservation becomes ever more important. Climate change is another major threat to the future of water res...
OBJECTIVE To compare the bone mineral density of residents of a mountain village with that of residents of a fishing village in Mie Prefecture, Japan. METHODS Microdensitometry was used to measure bone mineral density of the second metacarpal bone of 202 participants living in a mountain village and of 852 participants living in a fishing village to identify contributory factors for osteoporo...
The increased prevalence of high altitude sickness such as Acute Mountain Sickness (AMS), High Altitude Cerebral Edema (HACE), and High Altitude Pulmonary Edema (HAPE) are related to the increasing popularity of mountain climbing as an adventure sport; and the increasing ease, and decreasing cost of travel to popular climbing tourist destinations. This precludes the usual preparations and adapt...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید