WTD Industries, Inc. and its subsidiaries ("WTD") employ approximately twelve hundred people in the business of manufacturing lumber and related activities.
In the mid 1980's WTD implemented a drug testing program to prevent users of illegal drugs from working for or continuing to work for the Company. The program was...
State-and-transition models (STMs) have been successfully used to
describe ecological dynamics in woodlands, shrublands, grasslands, and several other ecosystems. Changes in vegetation and soil are measured to gauge and predict plant community dynamics within ecological states and transitions between alternative ecological states. Ecological states and their boundaries are defined by...
This analysis concerns the life and scientific work of Henry
Augustus Rowland (1848-1901), organizer and the first chairman of
the physics department at The Johns Hopkins University in 1876.
Special materials used in this research included three pieces of
Rowland's experimental apparatus which are extant in the Smithsonian
Institution Division...