Enriching the Earth
Dr. Smil is the world's authority on nitrogenous fertilizer.The industrial synthesis of ammonia from nitrogen and hydrogen has been of greater fundamental importance to the mode...
Publications
Explore 2,771 academic publications
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2,771 publications
Developmental and family milieu correlates of resilience in urban children who have experienced major life stress
Reports findings from interviews with parents of demographically-comparable groups of highly-stressed urban children with stress-resilient (SR) and stress-affected (SA) outcomes...
Studies of psychosocial risk : the power of longitudinal data
Longitudinal data in the study of causal processes, some uses and some pitfalls, M.Rutter longitudinal strategies, causal reasoning and risk research, N.Garmezy individual and v...
Disturbing the universe
Spanning the years from World War II, when he was a civilian statistician in the operations research section of the Royal Air Force Bomber Command, through his studies with Hans...
Origins and Evolution of Behavior Disorders: From Infancy to Early Adult Life
Beginning in 1956, Stella Chess and Alexander Thomas tracked the lives of 133 children from infancy to young adulthood, examining in detail their psychological development over ...
Diet, life-style, and mortality in China: a study of the characteristics of 65 Chinese counties
This report presents data from a number of recent surveys undertaken in China including the 1983 ecological survey the 1973-1975 mortality survey and the 1984 nitrosamine survey...
Adopting a Patient-Centered Approach to Primary Outcome Analysis of Acute Stroke Trials Using a Utility-Weighted Modified Rankin Scale
Background and Purpose— Although the modified Rankin Scale (mRS) is the most commonly used primary end point in acute stroke trials, its power is limited when analyzed in dichot...
Statistical Significance Versus Clinical Importance of Observed Effect Sizes: What Do P Values and Confidence Intervals Really Represent?
Effect size measures are used to quantify treatment effects or associations between variables. Such measures, of which >70 have been described in the literature, include unst...