in many hydroelectric dams, when the inflows are greater than the demand for energy, a portion of the water that could be used to generate electricity is diverted to the spillway and literally wasted. this energy,designated as “spilled turbinable energy”, could be used advantageously to generate other products or an energy vector that could be stored for later use, since in these situations the...

normal 0 false false false en-us x-none ar-sa in this case report, we present a 30‑year-old man who developed pityriasis rubra pilaris (prp) following exposure to dolomite. the diagnosis of prp was confirmed histologically and the patient was successfully treated with acitretin and cyclosporine.

background: in oil refinery plants, shift working is inevitable . shift work is associated with depression; therefore this prospective study was carried out in tehran shahid tondguyan oil refinery in order to determine the prevalence of depression in shift workers and to assess the effects of associated factors with depression among shift workers. in the present study, the shifting work system ...

normal 0 false false false en-us x-none ar-sa gossypibomas or retained surgical foreign bodies, although uncommon causes of abdominal lumps, still remain a major cause of concern for surgeons worldwide. their early identification and treatment are mandatory to prevent morbidity as well as mortality. the major diagnostic dilemma still remains in the vagueness of presentation of this callous enti...

Background The first step in assessing thoracic lesions is chest X-ray, but the optional imaging procedure for the final diagnosis is controversial. We aimed to examine the diagnostic accuracy of imaging modalities in pediatric thoracic masses. <em...

introduction: ankle fracture is one of the most common joint fractures. x-ray and physical examination are its main methods of diagnosis. recently, ultrasonography (us) is considered as a simple and non-invasive method of fracture diagnosis. this study evaluated the diagnostic accuracy of us in detection of ankle fracture in comparison to plain radiography. methods: in this diagnostic accuracy ...