Résumé L'ingestion de corps étranger de l'œsophage est un motif fréquent de consultation aux urgences pédiatriques. Cependant le phénomène peut se retrouver à tous les âges. Les auteurs décrivent les caractéristiques cliniques, paracliniques et thérapeutiques des corps étrangers enclavés dans l'œsophage pris en charge à l'hôpital du Mali. Il s'agit d'une étude prospective, menée entre janvier 2...

The history of Arabian medicine can only be studied satisfactorily in conjunction with the general history of Islam, which began to assume political importance in AD 622. In that year, the prophet Mohammed united the warring tribes of Arabia through a common religious and social ideal. This vision enabled the Arabs to conquer half of the known world and to build an empire destined to replace th...

The Innovation Corps for Learning (I-Corps-L) is a pilot initiative from the National Science Foundation (NSF) and the American Society for Engineering Education (ASEE) to study whether the NSF I-Corps model can help to propagate and scale educational innovations. The NSF I-Corps guides teams based on established strategies for business start-ups, using Blank’s Lean LaunchPad and Osterwalder’s ...

1. introduction the earthquake is a disaster which always threatens our country due to specific geographical conditions. according to official statistics, in the past 25 years, 6% of country’s casualties had been due to the earthquake. on average every ten years an earthquake of magnitude 7 on the richter scale occurs in the country (givechi and coworkers 2013:102). temporary accommodation is a...

purpose: to determine the amplitude and facility of accommodation after photorefractive keratectomy (prk) in myopic subjects. methods: the study was performed on 160 eyes of 80 patients aged 19 to 72 years. amplitude and facility of accommodation was evaluated before and 2 weeks and one and three months after prk. amplitude of accommodation was evaluated by “minus lens” method and facility of a...

Intravenous angiography was an important diagnostic tool earlier in th is century [1] , however, the technique had many drawbacks . Film timing was critical, the volume of contrast material was high , and the contrast resolution was often poor. When safer techniques for direct arteriography were developed, intravenous angiography was abandoned . Computed digital image processing has brought a r...

introduction international commission on radiological protection (icrp) has provided a comprehensive discussion on threshold dose for radiation-induced cataract in icrp publication 116. accordingly, various parts of the eye lens have different radio-sensitivities. recently, some studies have been performed to develop a realistic eye model with the aim of providing accurate estimation of fluence...