We establish an asymptotic formula for the weighted quantum variance of dihedral Maass forms on Γ 0 </...

We provide a new way of simultaneously parametrizing arbitrary local CR maps from real-analytic generic manifolds M ⊂ <mml:mrow class="MJX-TeXAtom-OR...

DESCRIPTION A 39-year-old man presented with a 5-day history of increasing left eye swelling and erythema, after a palm tree branch struck his face.

on april 15, 1979,a destructive earthquake struck the southwestern part of yugoslavia, in which the total damage exceeded 2.7 billion dollars. in this paper, major engineering lessons learned in this earthquake are discussed and illustrated with representative photographs. the main causes of failure of masonary and reinforced concrete buildings are pointed out. effect of architectural design on...

BACKGROUND Many quadrupedal species stand bipedally on their hindlimbs to fight. This posture may provide a performance advantage by allowing the forelimbs to strike an opponent with the range of motion that is intrinsic to high-speed running, jumping, rapid braking and turning; the range of motion over which peak force and power can be produced. METHODOLOGY/PRINCIPAL FINDINGS To test the hyp...

BACKGROUND There is a gap in knowledge about the mechanisms of sports-related brain injuries. The objective of this study was to determine the mechanisms of brain injuries among children and youth participating in team sports. METHODS We conducted a retrospective case series of brain injuries suffered by children participating in team sports. The Canadian Hospitals Injury Reporting and Preven...

In shot peening process the work piece surface is struck by a large number of balls and compressive residual stress is generated on the surface. So, mechanical properties such as fatigue strength, stress corrosion resistance, smooth shape and ... will improve. In this paper, the balls with a speed of 100 to 200 m/s were struck on the steel samples and fatigue strength compared with specimens wi...

Vehicle change in velocity, often referred to as delta-V, is a widely used measure of crash severity. The National Highway Traffic Safety Administration (NHTSA) uses the WinSMASH computer code to estimate delta-V in several of its in-depth crash databases. This study examined the accuracy of WinSMASH longitudinal delta-V estimates in 140 rear crashes by comparison with direct measurements of de...

OBJECTIVES To explore the immediate pre-crash activities and the routine traffic exposure (street crossing and play) in a sample of urban children struck by automobiles. In particular, the traffic exposure of children who were struck while playing was compared with that of those struck while crossing streets. DESIGN Cross sectional survey. SETTING Urban pediatric emergency department. PAT...