نتایج جستجو برای: use value in total wetland preservation value
تعداد نتایج: 17273185 فیلتر نتایج به سال:
Intrinsic value is a concept central to the environmentalist movement. Whether one believes that natural objects have intrinsic value is supposed to determine whether one takes a ecocentric or homocentric approach to environmentalism, whether we practice deep or (merely) shallow ecology. Yet this concept is also a center of controversy and confusion. Just what does it mean for something to ha...
this study aimed to investigate the effects of listening strategy training on iranian efl learners listening comprehension and use of such strategies. this work, employing an experimental methodology, was conducted among 60 adult efl learners from a language institute in isfahan, iran, as participants. the participants, who were selected based on the results of a placement test, were assigned t...
ژن zfx کد کننده یکی از اعضای خانواده پروتئین های انگشت روی می باشد که به عنوان تنظیم کننده خود نوزایی در چندین نوع سلول های بنیادی عمل می کند. علاوه بر این، بیان این ژن به طور غیر نرمال در چندین سرطان افزایش می یابد و با درجه بدخیمی ارتباط دارد. در این مطالعه به منظور بررسی نقش zfx در پاتوژنز آستروسیتوما، بیان آن با استفاده از روش real time rt-pcr در 25 نمونه بافت توموری آستروسیتوما با درجات مخ...
The financial impact of the first outbreak of Trypanosoma vivax in the Brazilian Pantanal wetland is estimated. Results are extended to include outbreaks in the Bolivian lowlands providing a notion of the potential influence of the disease and an analytical basis. More than 11 million head of cattle, valued at more than US$3 billion are found in the Brazilian Pantanal and Bolivian lowlands. The...
attempts have been made to study the thermodynamic behavior of 1,3 butadiene purification columns with the aim of retrofitting those columns to more energy efficient separation schemes. 1,3 butadiene is purified in two columns in series through being separated from methyl acetylene and 1,2 butadiene in the first and second column respectively. comparisons have been made among different therm...
Support material used in constructed wetlands has been shown to be a key element and significant mechanism in the process of contaminants removal from sewage including phosphorus compounds. Recycled waste tires processed into small chips that are similar to conventional stone aggregate are currently used in the construction of septic system leach fields and could be a green alternative as suppo...
South Africa has begun developing a wetland inventory program, coordinated on a national scale and employing a standardised methodology and classification system. In order to facilitate the mapping phase of the inventory and enhance the value of data gathered, a classification system for South Africas wetlands has been developed. This is based on the Cowardin system used by the United States N...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید