We present the most relevant works on jet engine design that utilize thermodynamic cycle of detonative combustion. The efficiency advantages of thermodynamic detonative combustion cycle over Humphrey combustion cycle at constant volume and Brayton combustion cycle at constant pressure were demonstrated. An ideal Ficket-Jacobs detonation cycle, and…

Discusses implications of the recent actions of Federal agencies, through export control regulations, to control the open exchange of scientific ideas. Reactions of the National Academy of Sciences and several professional physics organizations are described. Impact on foreign students and publication is also discussed. (CS)

"Chronicle of Higher Education" presents an abundant source of news and information for college and university faculty members and administrators. This March 12, 2004 issue of "Chronicle of Higher Education" includes the following articles: (1) "Fewer Stem Cells Available, NIH Says" (Brainard, Jeffrey); (2)…