نتایج جستجو برای: number of snags
تعداد نتایج: 21177911 فیلتر نتایج به سال:
one very decisive factor in students’ academic destiny is the result they get at final term examinations. because of its importance, both students and teachers are curiously anxious about them. as normally it is the case, these final term tests are prepared hurriedly in short time by teachers which result in students’ dissatisfaction, complaining on how the test was different from their expecta...
a novel and ultra low cost isfet electrode and measurement system was designed for isfet application and detection of hydronium, hydrazinium and potassium ions. also, a measuring setup containing appropriate circuits, suitable analyzer (advantech board), de noise reduction elements, cooling system and pc was used for controlling the isfet electrode and various characteristic measurements. the t...
abstract: in the paper of black and scholes (1973) a closed form solution for the price of a european option is derived . as extension to the black and scholes model with constant volatility, option pricing model with time varying volatility have been suggested within the frame work of generalized autoregressive conditional heteroskedasticity (garch) . these processes can explain a number of em...
This paper documents data on standing dead trees (snags) in the pine-spruce (Norway spruce Picea abies, Scots pine Pinus sylvestris) natural stand in Bialowieza National Park (BNP) in northeast Poland. Trophically, this mostly coniferous stand represents one of the poorest habitats of the BNP, and this stand has never been cut. There are few tree species of significance, i.e., Scots pine, Norwa...
RESEARCH NEWS A Last Go-Around for the MX Missile? ...................................... Funds Squeezed for International Agriculture ................................. Stanford's Gene Patents Hit Snags........................................... Global Energy R & D Stalls................................................. Briefing: American Academy to Be U.S. Member at IIASA; Aeronautics Is Not L...
Red-headed Woodpeckers (Melanerpes erythrocephalus) are endangered because they have experienced population declines of up to 80% in the past 40 years. The purpose of this study was to identify key habitat and nest-tree characteristics that contribute to successful breeding at Cedar Creek Ecosystem Science Reserve in East Bethel, Minnesota, with the goal of making recommendations to recovery pr...
Snags are highly important for many wildlife species and ecological processes. In this study, we analyzed the relationship between snags topographic factors in a secondary forest plot South China. Data on 544 were collected recorded from 236 subplots permanent (400 subplots). The frequency of Castanopsis carlesii Schima superba was higher than that other species. derived mostly saplings small t...
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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