The best way to find buried ordnance (e.g., landmines) is to detect the explosive packaged inside. This expedient would eliminate detection of the ground clutter, such as shrapnel and stray metal fragments, that produce the great number of false positive signals and which slow down detection rates to unacceptable levels. The detection of the explosive is essentially what trained dogs do as they...

Quantitative structure-activity relationship models were obtained by applying the Molecular Descriptor Family approach to eight ordnance compounds with different toxicity on five marine species (arbacia punctulata, dinophilus gyrociliatus, sciaenops ocellatus, opossum shrimp, and ulva fasciata). The selection of the best among molecular descriptors generated and calculated from the ordnance com...

Collaborating with People Like Me: Ethnic Coauthorship within the United States Author(s): Richard B. Freeman and Wei Huang Source: Journal of Labor Economics, Vol. 33, No. S1, US High-Skilled Immigration in the Global Economy (Part 2, July 2015), pp. S289-S318 Published by: The University of Chicago Press on behalf of the Society of Labor Economists and the NORC at the University of Chicago St...