history of underwater diving dates back to antiquity. breath-hold technique in diving was known to the ancient nations. however, deep diving progressed only in the early decades of the 19 th century as the result of advancements in efficient underwater technologies which subsequently led to invention of sophisticated sets of scuba diving in the 20 th century. currently, diving is performed for ...

conclusions although external fixation in open pediatric fractures and severe injuries is recommended, intramedullary nailing is also an effective method with low complications. combining pins and flexible intramedullary nails is effective in developing more stability and is not associated with more complications. background tibial fractures are the third most common pediatric long-bone fractur...

this study was performed to identify factors affecting the entrepreneurial university. in order to achieve this goal, a sample of 173 faculty members (academic rank of associate professor or higher) in academic year of 2015-2016 was selected using the using relative stratified sampling and cochran’s formula. in this study, given the purpose and nature of research, for analysis of the data, expl...

in petroleum production, produced water re-injection (pwri) has earned much interest among disposal methods of the produced water. however, presence of the contaminants in the produced waters usually results in formation damage in well bores and their surrounding fracture systems. in the present study, modeling of external cake formation on a fracture in unsteady-state conditions is discussed. ...

background: people who have been administrated radiopharmaceuticals could be a source of radiation to their relatives, medical nurses, and people who are in contact with them. the aim of this work was to estimate radiation dose received by nuclear medicine nurses. materials and methods: in this study, the dose rates at various distances of 5 – 100 cm from 70 patients, who were administered diag...

conclusions the fixator-assisted lengthening plate technique helps to maintain the stability and alignment at both sides of an osteotomy during tibial elongation. it allows the early removal of the external fixator immediately after lengthening is completed. this technique can be applied in children with open physes and in patients with a narrow medullary canal who are unsuitable for limb lengt...

fish is one of the important nutrient sources in many parts of the world. consumption of fish like other parts of the world is high in khoozestan province. the role of fish in transmission of some parasitic agents to human is investigated by many researchers. this study aims to investigate internal and external zoonosis parasites and the importance of these parasites in transferring disease in ...

We measured the movements of the external ear, or pinna, using the magnetic search coil technique in cats trained to look at auditory and visual targets for a food reward. No behavioral contingencies were placed on pinna movements. Prominent pinna movements accompany eye movements when the animal orients to either auditory or visual stimuli. In visual trials the pinna movements are coordinated ...