نتایج جستجو برای: food coefficient ratio
تعداد نتایج: 911899 فیلتر نتایج به سال:
ABSTRACT Micropulse lidar (MPL) cannot directly retrieve the aerosol extinction coefficient under cloudy conditions and at night. Therefore, we used ground visibility, Fernald’s near-end solution method, linear correlation between signal (photons) (correlation = 0.98), to calculate constant ratio (LR). We compared optical depth (AOD) retrieved from MPL AOD multifilter rotating shadowband rad...
BACKGROUND Drinking eight glasses of fluid or water each day is widely believed to improve health, but evidence is sparse and conflicting. We aimed to investigate the association between fluid consumption and long-term mortality and kidney function. METHODS We conducted a longitudinal analysis within a prospective, population-based cohort study of 3858 men and women aged 49 years or older res...
In this paper, a spatial tri-trophic food chain model with ratio-dependent Michaelis-Menten type functional response under homogeneous Neumann boundary conditions is studied. Conditions for Hopf and Turing bifurcation are derived. Sufficient conditions for the emergence of spatial patterns are obtained. The results of numerical simulations reveal the formation of labyrinth patterns and the coex...
OBJECTIVE To investigate rates and severity of child and adult food insecurity (the inability to access enough food in a socially acceptable way for every day of the year) in households with and without smokers. DESIGN Cross-sectional survey. SETTING Nationally representative sample of the US population from 1999 to 2002. PARTICIPANTS Households with children through age 17 years (n = 881...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید