نتایج جستجو برای: cumulative effect
تعداد نتایج: 1699007 فیلتر نتایج به سال:
Compost and sewage sludge contain high concentration of plant nutrients and, thus, have been used extensively as an inexpensive fertilizer. The objective of this study was to evaluate cumulative and residual effects of compost, sewage sludge and cow manure on nitrogen, phosphorus and potassium in soil and wheat. The experiment included compost, sewage sludge and cow manure, each applied at 3 ra...
BACKGROUND Depression is associated with elevated levels of the inflammation marker C-reactive protein (CRP); yet, the direction of this association remains unclear. This study tested bi-directional longitudinal associations between CRP and depression in a sample of adolescents and young adults. The study compared the effect of current depression with the effect of cumulative episodes of depres...
This paper studies the influence of annual cumulative earnings Chinese listed TPA (targeted poverty alleviation) companies before 2004 on companies’ value using data from 2012 to 2019, measures long-term persistence these with variable averaged by market price each company at current year’s end, and obtains a model company’s combined competitive strength its products. The 2012, 2005 2013…, 2011...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید