While my guitar gently weeps

While Boolean sets non-gently rip: A theoretical framework on fuzzy sets for mapping landscape patterns

Boolean logic is frequently applied in order tomap landscape patterns. Nonetheless this implies to divide the gradual variability of the earth’s surface into a finite number of non-overlapping classes, which are considered exhaustive and mutually exclusive. On the contrary, landscapes are expected to be spatially continuous. Fuzzymembership seems to better fit such an issue, by associating for ...

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.