A mathematical brain teaser challenges people to solve the matchstick equation in just two moves. The puzzle uses matchsticks to create an equation that shows 3 + 3 = 8 and instructs viewers to make ...

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This is a preview. Log in through your library . Abstract This paper derives the exact probability density function of instrumental variable estimators of the coefficient vector of the endogenous ...

A telephone-based weight-loss intervention helped women with breast cancer and obesity lose almost 5% of their baseline body weight, according to results of a randomized phase 3 trial. Only about 20% ...

DNA and a 20-year-old genealogy expert helped state police identify the man who abducted, raped and murdered a young girl in a case that rattled a Pennsylvania coal town nearly six decades ago, ...

This is a preview. Log in through your library . Abstract In this paper, we give several results about growth k-order of solutions of a complex homogeneous linear differential equation with variable ...

Peter Gratton, M.A.P.P., Ph.D., is a New Orleans-based editor and professor with over 20 years of experience in investing, risk management, and public policy. Peter began covering markets at Multex ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...