نتایج جستجو برای: benefit ratio

تعداد نتایج: 745945  

Journal: :Cureus 2023

Background Preeclampsia (PE) is one of the highest-risk pregnancies and a complicated condition that occurs in 2% to 8% associated with markers systemic inflammatory response (SIR). In this study, we aimed determine role these predicting PE. Methodology A total 300 women singleton cephalic presentation were included study. Normotensive pregnant (n = 149) who met criterion as control group Pregn...

Journal: :مدیریت آب و آبیاری 0
علیرضا توکلی استادیار پژوهش، بخش تحقیقات فنی و مهندسی، مرکز تحقیقات کشاورزی استان سمنان، شاهرود - ایران

the effects of planting date and single irrigation (si) allocation scenarios on increasing and stability of yield were investigated to determine the total water productivity and economical water productivity (wpe), for rainfed wheat at dryland agricultural research institute in maragheh, iran, during 2000-2004. the treatments included three sowing dates (early, normal and late), four allocation...

Although carp is still widely sold and used in its fresh form, a range of value additions may also be observed. It is essential to know the development and management of a carp farm production costs and their evolution. In Iran, warm-water fish farming is based on common, silver, grass, and bighead carps. The carp is easy to rise in hatcheries in very large numbers at little cost, and is distri...

Journal: :Journal of Benefit-cost Analysis 2023

Abstract Drawing upon recent studies that empirically estimate both the benefits and costs of trade, this paper addresses a simple important question: By how much do increased global trade outweigh costs? To best our knowledge, is first attempt to answer question at World Bank income-grouping levels using estimated relationships from cost literature. Using structural gravity model, we simulate ...

Journal: :International Journal of Epidemiology 2008

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