Classification and pharmacology of progestins Page 1 *This article is a reprint of a previously
published article, for citation purposes please use the original publication details; Maturitas…

Estrogens and estrogen-like substances are widely distributed in animals and plants, and it
is now clear that estrogens have both nuclear and nonnuclear actions. This review article …

Photons have many advantages for vaporizing condensed systems, and laser vaporization
sources have a flexibility not available with other methods. These sources are applied to …

Data analysis workflows in many scientific domains have become increasingly complex and
flexible. Here we assess the effect of this flexibility on the results of functional magnetic …

A controversy has arisen regarding the photophysical properties of 9, 10-diphenylanthracene
(DPA), a pop-ular emission quantum yield standard. In order to elucidate the causes of the …

The evolution of marine microbes over billions of years predicts that the composition of
microbial communities should be much greater than the published estimates of a few thousand …

Background After striking changes in rates of sudden unexplained infant death (SIDS) around
1990, four large case-control studies were set up to re-examine the epidemiology of this …

Proactive, that is, unsolicited, prosociality is a key component of our hyper-cooperation, which
in turn has enabled the emergence of various uniquely human traits, including complex …

An asymmetrically dominated alternative is dominated by one item in the set but not by
another. Adding such an alternative to a choice set can increase the probability of choosing the …

The left-right ideological positions of political parties play a central role in theorizing about
many different aspects of democratic processes. Unfortunately, scholars are hindered in their …