نتایج جستجو برای: household head 1 usd 30570 ngn 1 n 30570
تعداد نتایج: 3510188 فیلتر نتایج به سال:
MOTIVATION Proper management of fecal sludge has significant positive health and environmental externalities. Most research on managing onsite sanitation so far either simulates the costs of, or the welfare effects from, managing sludge in situ in pit latrines. Thus, designing management strategies for onsite rural sanitation is challenging, because the actual costs of transporting sludge for t...
چکیده روغن اسانسی اندام های هوایی دو گونه گیاهی ایران از خانواده نعنائیان (nepeta persica، nepeta asterotricha) به دو روش تقطیر با آب و head space به دست آمد و ترکیبات موجود در آن ها به وسیله کروماتوگرافی گازی همراه با طیف سنجی جرمی جداسازی و شناسایی گردید. در روغن اسانسی حاصل از اندام هوایی n. persica، 18 ترکیب از 22/92% کل اسانس شناسایی شد و محصولات عمده (5/16%) 4a?, 7?, 7a? nepetalactone، ...
Head lice prevalence varies greatly between and within countries, and more knowledge is needed to approach causes of this variation. In the present study, we investigated head lice prevalence among elementary school students and their households in relation to individual and household characteristics as well as spatial variables. The investigation included households from 5 geographically separ...
Agricultural expansion is one of the main drivers deforestation in Ethiopia. This study was therefore carried out to examine trade-off between forest and agricultural land uses Guraferda district, southwest Data estimate economic values use were derived from household surveys, key informant interviews, focus group discussions. The surveys four purposively selected kebeles. Within Kebeles, a tot...
intracranial hemorrhage and entrapment neuropathy are the most serious and disabling complications in hemophilia.the occurance of these neurological complications was studied in 214 hemophiliac patients during a 3 month period. nine patients (4.2%) suffered intracranial hemorrhage (one epidural and others intracerebral). all of intracranial hemorrhage patients had the sevee form of disease (<1%...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید