390 days, 7 hours, 9 minutes and counting ...

Neuroendocrine and cytokines-induced responses to minutes, hours, and days of mental stress.

OBJECTIVES Previously, a large number of studies reported that psychological stress and psychiatric illness reduces immune responsiveness. However, it turned out that stress reduces immune responsiveness is an oversimplified statement because the interactions between central nervous system, endocrine system and the immune system are undoubtedly complex. Therefore, this study aims in reviewing m...

Variation in ocular aberrations over seconds , minutes , hours , days , months , and years

7 billion and counting.

The world is currently in the midst of the greatest demographic upheaval in human history. Dramatic reductions in mortality, followed (but with a lag) by equally marked reductions in fertility, resulted in a doubling of world population between 1960 and 2000. A further increase of 2 to 4.5 billion is projected for the current half-century, with the increase concentrated in the world's least dev...

Lecture 9 : Counting Matchings

9 Labour Supply and Hours Constraints

Most empirical labour supply studies rely on the assumption that an individual can freely choose her hours of work, at her (given) market wage rate. This stands in contr~st with responses of individuals in many surveys. For example, in Ham (1982) a table compiled from the Michigan University Panel Study of Income Dynamics (PSID) shows that between the years 1967 and 1974 around 9-14 per cent of...