The objective of this effort was to examine the impact of TRSs on crashes, specifically total crashes, injury crashes, and specific crash types, such as right-angle and run stop sign crashes. The effort also included an economic analysis to investigate the tradeoffs between different crash types. It could be hypothesized that the major effect of TRSs would be to reduce instances of drivers fail...

Recently there has been a sizeable increase in research on fatigue and accidents in transportation. Therefore a meeting was convened last year to discuss prevalence, mechanisms and countermeasures, with the intention to produce an international consensus document. It was concluded that official statistics strongly underestimate prevalence, and that a reasonable estimate, based on research, lies...

Stomatopods (mantis shrimp), numbering over 450 species, are renowned for their exceptional visual and chemosensory abilities and yet virtually nothing is known about their use of acoustic signals. We present acoustic recordings and analyses of the sounds of a stomatopod, Hemisquilla californiensis. This species generates tonal, low frequency sounds, which we term ‘rumble’, that are spectrally ...

CHONDRITIC METEORITE PARENT BODY NECESSARY? J. M. Friedrich, J. Troiano, D. Rumble III, M. L. Rivers, Department of Chemistry, Fordham University, Bronx, NY 10458, Department of Earth and Planetary Sciences, American Museum of Natural History, New York, NY 10024 (email: [email protected]), Geophysical Laboratory, Carnegie Institution of Washington, 5251 Broad Branch Road NW, Washington DC 2...