ptimization oftware ibrary - A library of optimization routines, callable from Fortran or C, produced by IBM.

OPTICALLY STIMULATED LUMINESCENCE. A method of dating soil sediments and can be used to date deposits up to 200 000 years old. All soils contain traces of minerals, including uranium, thorium and potassium. These slowly decay over time and the ionising radiation they produce is absorbed by quartz and feldspar. Stimulating samples using infrared light causes luminescence, the intensity of which varies depending on the amount of radiation absorbed. Exposure to sunlight resets the luminescent signature and so the time period since the soil was buried by later sediments can be calculated. Wind blown, rainwashed and soil creep deposits are particularly suitable for OSL dating, and unlike radiocarbon dating, the technique does not require organic samples. It is more reliable and can be used on older deposits than radiocarbon dating and therefore is most suitable for use by archaeologist on prehistoric sites.

IBM's subroutine library and graphical user interface for solving problems in mathematical optimization.

The Office of Student Life. They handle all student clubs & organizations, the Carr Haus Café, student galleries, the student fitness center, and most other extracurricular student stuff.

Office of Service Learning

OSL is a simple pbbuttonsd client. It uses the xosd-lib to display the current values which makes it look a lot more like OSX than other pbbuttonsd-clients.