Active deformation in Alborz range is due to N-S convergence between Arabia and Eurasia. This paper provides geomorphic traces of regional deformation in NW Iran in order to characterize active faulting on major faults. Soltanieh and North Zanjan fault systems are involved in convergence boundary extent between South Caspian Basin and Central Iran. Soltanieh and North Zanjan faults are major re...

We discuss in this paper the influence of the presence of an elevated strike object on the peak of the lightning return stroke current determined from remote field measurements. We develop analytical expressions relating the lightning return stroke channel-base current and the far electromagnetic field for different specific cases, namely, (1) ground-initiated return strokes (classical transmis...

The Labour Relations Act (South Africa, 1991) made provision for protected strike action by employees, subject to certain conditions, procedures and negotiated agreements. This led to the removal of the strike clause in the Nursing Act (South Africa, 1992). The labour rights of all citizens are entrenched in the Constitution of the country (South Africa, 1996). Participation in strike action by...

The objective of the study presented herein is to access the influence of rupture directivity on the inducement of liquefaction in loose, saturated sand. Rupture directivity is a near fault phenomenon that results in a pronounced double-sided velocity pulse in the strike normal component(s) of motion. Using the Palmgren-Miner fatigue theory, implemented for low cycle fatigue conditions, the num...

The purpose of this study was to identify consistent features in the signals supplied by a single inertial measurement unit (IMU), or thereof derived, for the identification of foot-strike and foot-off instants of time and for the estimation of stance and stride duration during the maintenance phase of sprint running. Maximal sprint runs were performed on tartan tracks by five amateur and six e...

Strike Three: Umpires’ Demand for Discrimination We explore how umpires’ racial/ethnic preferences are expressed in their evaluation of Major League Baseball pitchers. Controlling for umpire, pitcher, batter and catcher fixed effects and many other factors, strikes are more likely to be called if the umpire and pitcher match race/ethnicity. This effect only exists where there is little scrutiny...

Two moderate magnitude (Mw = 5.6 and 5.2) earthquakes in Krn Mountains occurred in 1998 and 2004 which had maximum intensity VII-VIII and VI-VII EMS-98, respectively. Comparison of both macroseismic fields showed unexpected differences in the epicentral area which cannot be explained by site effects. Considerably, different distribution of the highest intensities can be noticed with respect to ...

During running, the foot collides with the ground approximately 1000 times per mile. These collisions vary significantly by the strike pattern that the runner adopts. A rearfoot strike pattern results in a very distinct vertical impact peak that is missing in a midfoot or forefoot strike landing (Figure 1) [1]. The impact peak of a rearfoot strike is associated with higher rates of loading comp...

This paper examines the relationship between Australian and world strike activity between 1960 and 1998. Appropriate indices are constructed for which evidence of a long-run equilibrium relation is found between Australian and world strike activity. The evidence suggests Australian and world strike rate indices are cointegrated with a breakpoint in that relation occurring sometime in the very l...