This article examines theories of practical and strategic constraints that collectively explain why so few terrorist groups in history have crossed (or attempted to cross) the WMD threshold. From this analysis, it becomes clear that a terrorist group's deliberations about WMD can be influenced (positively or negatively) by a variety of factors. Our projections of the future WMD terrorism threat...

Received March 26, 1999; revised July 5, 1999; accepted September 8, 1999. Communicated by Chyi-Nan Chen. *This research was supported in part by the Office of Naval Research under grants N00014-95-1-0514 and N0001496-1-0897, and in part by the Department of Defense/Air Force Office of Scientific Research under grant F49620-961-0472 JOURNAL OF INFORMATION SCIENCE AND ENGINEERING 16, 301-311 (2000)

This paper analyzes the impact of shortening the duration of secondary schooling on the accumulation of human capital. In 2003, an educational policy reform was enacted in Saxony-Anhalt, a German state, providing a natural experimental setting. The thirteenth year of schooling was eliminated for those students currently attending the ninth grade. Tenth grade students were unaffected. The academ...

A new automated approach to engineering design known as A-design is presented that creates design configurations through the interaction of software agents. By combining unique problem solving strategies, these agents are able to generate solutions to openended design problems. The A-design methodology makes several theoretical claims through its combination of multiagent systems, multiobjectiv...

Abstract We conduct a condition number analysis of Hybrid High-Order (HHO) scheme for the Poisson problem. find statically condensed system to be independent faces in each element, or relative size between an element and its faces. The dependence on polynomial degree is tracked. Next, we consider HHO schemes cut background meshes, which are commonly used unfitted discretisations. It well known ...

to study yield and its relationships with yield components in 10 varieties of foxtail millet (kfm1 to kfm10), an experiment was carried out in safiabad agricultural research center in rcbd design with three replications for a period of three years (2003 to 2005). vegetative and reproductive characteristics of each cultivar were recordered during the growing seasons. three year results showed si...