نتایج جستجو برای: 1 yr
تعداد نتایج: 2767948 فیلتر نتایج به سال:
The purpose of this study was to examine the physiological characteristics of an elite centenarian cyclist who, at 101 yr old, established the 1-h cycling record for individuals ≥100 yr old (24.25 km) and to determine the physiological factors associated with his performance improvement 2 yr later at 103 yr old (26.92 km; +11%). Before each record, he performed an incremental test on a cycling ...
One-hundred-and-twenty-eight recipients of 131 consecutive, non-matched cadaver renal allografts were treated with cyclosporine and steroids. They have been followed for 4 to 6 yr. Cumulative patient survival at 1-yr was 92.2% and at 6yr it is 77.8%. Cumulative graft survival at 1-yr was 79.4% and at 6 yr it is 50.0%. After the high-risk 1st yr, the rate of graft loss was even and similar to th...
in order to evaluate the effect of different crop management practices on corn (zea mays l.) net primary productivity (npp) and relative carbon allocation coefficients, a field experiment was conducted based on a completely randomized block design with four replications in the agricultural research station, ferdowsi university of mashhad, iran during two growing season 2008-2009 and 2009-2010. ...
نرخ ممان لرزهای، کمیتی است که بیانگر میزان تجمع پتانسیل زلزله در یک منطقه میباشد. این کمیت از طریق دادههای لرزهنگاری و زمینشناسی قابل تعیین است هم چنین با استفاده از دادههای ژئودزی ماهوارهای و میدانهای جابجایی دقیق حاصل از آن و از طریق تنسور استرین نیز قابل محاسبه میباشد. طبق فرمولKostrov ، تنسور استرین و تنسور ممان با یکدیگر متناسب بوده از این طریق می توان نرخ ممان لرزهای را تعیین ...
An increase in the emission of greenhouse gases such as carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) from the soil surface to the atmosphere has been of worldwide concern over the last several decades. Carbon dioxide is recognized as a significant contributor to global warming and climatic change, accounting for 60% of total greenhouse effect. The aim of this research was to dete...
Thirty five patients of either sex suffering from tuberculosis were administered streptomycin 0.75 g (im daily, upto 14 yr and above 45 yr of age) and 1 g (im daily for age 15-45 yr) with other antitubercular drugs and followed for audiological status. Five patients were dropped as they developed vestibular dysfunction. Varying degree of hearing loss was detected in 4 of 10 patients in group I ...
Milk production of fall-calving dairy cows during subsequent summer grazing was evaluated in two consecutive years using a total of 80 mid- to late-lactation Holsteins. Cows calved during September and October and grazed from April to August in the following year. In yr 1, 27 cows grazed a native grass pasture and 13 cows grazed a native grass-clover mixed pasture containing 26% red clover and ...
This paper examines the changes in the population biology and biomass of common kilka (Clupeonella cultriventris caspia) in the Iranian waters of the Caspian Sea from 1995-2004. For most years during this 10-year period, we estimated the age structure of the catch, length-weight relationship, von Bertalanffy growth parameters, condition factor, sex ratios, maturity stages determined from ovaria...
عوامل متعددی درپیدایش خشکسالی موثرند،که تغییر ودخالت درآنهابه منظورجلوگیری ازیروز ووقوع آنها،از توان بشر خارج وغیرممکن است.روی همین اصل،امکان داردکه این شرایط درهرمنطقه از سطح کره زمین درکشور های غنی وفقیر ،مرطوب وخشک ،پیشرفته ودرحال توسعه وغیره اتفاق افتد.در این تحقیق دادههای هواشناسی جمعآوریشده از 19ایستگاههای هواشناسی در طی 2003-1961ایرانو با استفاده از یک شاخص مرکب (CI) از خشکسالیهای ...
Quantification of biogenic carbon fluxes from agricultural lands is needed to generate comprehensive bottom-up estimates of net carbon exchange for global and regional carbon monitoring. We estimated global agricultural carbon fluxes associated with annual crop net primary production (NPP), harvested biomass, and consumption of biomass by humans and livestock. These estimates were combined for ...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید