The Hawthorne deletion twenty-five years later.

Paleolithic nutrition: twenty-five years later.

A quarter century has passed since the first publication of the evolutionary discordance hypothesis, according to which departures from the nutrition and activity patterns of our hunter-gatherer ancestors have contributed greatly and in specifically definable ways to the endemic chronic diseases of modern civilization. Refinements of the model have changed it in some respects, but anthropologic...

Neutrino masses twenty–five years later

The discovery of neutrino mass marks a turning point in elementary particle physics, with important implications for nuclear and astroparticle physics. Here I give a brief update, where I summarize the current status of three–neutrino oscillation parameters from current solar, atmospheric, reactor and accelerator neutrino data, discuss the case for sterile neutrinos and LSND, and also the impor...

The Foster-Greer-Thorbecke Poverty Measures: Twenty Five Years Later

Twenty-five years ago the FGT class of decomposable poverty measures was introduced in Foster, Greer, and Thorbecke (1984). The present study provides a retrospective view of the FGT paper and the subsequent literature, as well as a brief discussion of future directions. We begin by describing the context and origins of our paper, and identify three categories of contributions: to measurement, ...

The Code of Canon Law Twenty-Five Years Later

The current Code of Canon Law for the Latin Church was promulgated on January 25, 1983, and went into effect on the First Sunday of Advent that same year. During this quarter of a century, the Code has substantially achieved its principal aim: to translate the pastoral movement of Vatican II into stable structures and effective juridical forms within the context of the church’s canonical tradit...

Accretion Disks around Black Holes: Twenty Five Years Later