When boiled down to the basics, investing is a combination of risk and return. These two seemingly simple variables are both incredibly complex and challenging to forecast. Over the last two decades, ...

Mental capabilities vary greatly between people as they age, but risk factors linked to cognitive decline explain very little of these differences, researchers say. In a new study, investigators from ...

According to a 2009 CareerBuilder.com survey, 40 percent of workers in the United States said they had trouble staying motivated at work. A variety of factors explain why employees become unmotivated ...

Examining social factors is vital to better explaining and understanding the dramatic rise in the number of Americans diagnosed with mental disorders in recent years, according to a new analysis.

Abbreviations: NSCLC, non–small-cell lung cancer; SES, socioeconomic status. Follow-up through December 31, 2009. Fig 1. Kaplan-Meier survival curves of (A) overall and (B) cancer-specific survival ...

Environmental Conservation, Vol. 38, No. 4, Thematic section. Payments for Ecosystem Services in Conservation: Performance and Prospects (DECEMBER 2011), pp. 380-392 (13 pages) Payments for ecosystem ...