Going gently

Gently adjusting open doors.

Gently Killing S–spaces

We produce a model of ZFC in which there are no locally compact first countable S–spaces, and in which 2א0 < 2א1 . A consequence of this is that in this model there are no locally compact, separable, hereditarily normal spaces of size א1, answering a question of the second author [9].

Shortest Gently Descending Paths

A path from s to t on a polyhedral terrain is descending if the height of a point p never increases while we move p along the path from s to t. We introduce a generalization of the shortest descending path problem, called the shortest gently descending path (SGDP) problem, where a path descends, but not too steeply. The additional constraint to disallow a very steep descent makes the paths more...

Gently does it for submicron crystals

A protein structure has been refined with electron diffraction data obtained by using a very weak electron beam to collect large numbers of diffraction patterns from a few sub-micron-sized three-dimensional crystals.

Imaging gently: a call for awareness.

Kaste • Editorial S publication of a study by Brenner and colleagues in the American Journal of Roentgenology1 about 10 years ago, concern about possible induction of added cancers due to patient exposure to ionizing radiation from medical imaging—particularly computed tomography (CT)—has continued to grow.2,3 Increasing concern by the public and health care providers alike about overuse of med...