Applications of Group Theory: Group Structure of Gauge Theories. L. O'Raifeartaigh. Cambridge University Press, New York, 1986. x, 172 pp., illus. $34.50. Cambridge Monographs on Mathematical Physics. | Science
Blood Pressure 172 over 93 - what do these values mean?
U.S. Highway 93 and state Route 172 were closed for five hours Tuesday after a woman threatened to jump from the O'Callaghan-Tillman Bridge near Hoover Dam. (Michael Quine/Las Vegas Review-Journal) | Las