نتایج جستجو برای: 114
تعداد نتایج: 17283 فیلتر نتایج به سال:
knowledge. It was not unpleasant simply to sit and read, and should be useful to people interested in learning more about the medical beliefs and practices of this period. Mental illness, mental retardation, and substance abuse are important concerns today, but they are not recent phenomena. A consideration of mental disability in a historical context is essential to an understanding of the cur...
A novel fiber-optic electrochemiluninescence sensor has been developed. It can be conveniently applied by placing into the sample solution in a manner similar to a conventional ion selective electrode, without requiring liquid luminous reagent and a flowing system. The sensor is consisted of an independent probe and a case for exclusion the ambient light, allowing the sample solution to pass th...
The interspecific competition between a new cockroach pest species in Southeast Asia, the Smooth cockroach, Symploce pallens (Stephens) and the ubiquitous German cockroach, Blattella germanica (L.) was studied under different food and water regimes (unlimited food and water [control], limited water, limited food and limited food and water). Both species were found to have equal chances to coexi...
Academic dishonesty is a persistent and pervasive problem on college campuses. Researchers have suggested a variety of factors that influence academic dishonesty. The present study is an examination of the roles of self-control, attitude toward academic dishonesty, and perceived opportunity in predicting academic dishonesty. The dataset consisted of 853 survey responses from university students...
دراین تحقیق برای استخراج واندازه گیری داروی مرفین به روش نقطه ابری از سورفکتانت تریتون x-114 استفاده می شود. در این روش 8 میلی لیتراز محلول آبی سورفکتانت 1% ( v/v ) تریتون x-114 به محلول مرفین (µg/ml) 700-50 اضافه شده وتا 100میلی لیتر آن را به حجم می رسانیم. سپس به وسیله ی اسید – باز ، ph محلول فوق راروی 50/5 تنظیم کرده و به مدت 20 دقیقه در حمام آب گرم در دمای 50 درجه قرار داده که در این مدت م...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید