Continental break-up is an ingredient of plate tectonics and the Wilson cycle. During evolution Tethyan Realm since Paleozoic, a series ribbon-like (micro-)continents are split from Gondwana drifted northwards to Eurasian continent. The initial opening Neo-Tethys Ocean follows typical continental marginal Cimmeria Gondwana, which generally considered be driven by subduction Paleo-Tethyan plate....

Visual display terminals (VDTs) as one of the most important and useful equipment are used in offices and workplaces that may be created some health hazards, including work-related musculoskeletal disorders (WMSDs). The aims of this study were to (i) investigate the prevalence of WMSDs among Iranian bank tellers and (ii) to examine the demographic and work-related characteristics associated wit...

purpose: to evaluate the underlying causes of rhegmatogenous retinal detachment (rrd) in eyes operated for this reasion. methods: out of 1473 patients who underwent retinal detachment surgery, records of 369 patients were randomly selected and evaluated for the types of retinal breaks, the underlying disorders, and location of breaks. results: fifty-two percents of patients were less than 50 ye...

Modeling the complex characteristic acoustic impedance and complex wavenumber of porous materials allows the prediction of the complex specific acoustic impedance of a system consisting of porous absorbers and air cavities in front of a rigid surface. By using the transfer matrix method, the complex characteristic acoustic impedance and complex wavenumber of a porous material can be predicted b...

This paper studies properties of the back end of a sorting network and illustrates the utility of these in the search for networks of optimal size or depth. All previous works focus on properties of the front end of networks and on how to apply these to break symmetries in the search. The new properties help shed understanding on how sorting networks sort and speed-up solvers for both optimal s...

Life happens and things can go wrong. Accidents and spills can occur. Winds can shift, and the pesticide application can blow back onto the applicator’s skin. Equipment can break down, and hoses can rupture. Eyes can be splashed into. If the label is readily available, first-aid information can be obtained in a matter of minutes if not seconds. But if the applicator has to first determine what ...

To cite: Percy L, Mansour D. J Fam Plann Reprod Health Care 2013;39:237–240. BACKGROUND The combined oral contractive pill (COC) has been available for over 50 years but are we providing women with the regimens they want? As far back as 1977, Louden et al. reported the use of 84 active pills with a 7-day break to free women from monthly periods, yet menstrual manipulation is underused today. So...