Introduction: Squamous cell carcinoma of the temporal bone is extremely rare comprising 0.2% all tumors head and neck. Symptoms are nonspecific may be mistaken for other more benign conditions as otitis, cholesteatoma polyp. Hence, this condition present a diagnostic challenge. Case Discussion: We describe case series three patients who presented with external auditory canal (EAC) mass. The mos...

background and aims . a perfect endodontic treatment necessitates proper understanding of the morphology of canal and pulpal variations. this in vitro study was conducted to demonstrate the internal anatomy of mandibular canine teeth in an iranian population. materials and methods . the samples consisted of 100 extracted mandibular permanent canines. the roots of the teeth were molded in acryli...

Canal switch is a complication following canalith repositioning procedure (CRP) for posterior canal benign paroxysmal positional vertigo (BPPV). Instead of being returned to the utricle, the loose otoconia migrate into the superior or horizontal semicircular canal. Patients remain symptomatic, and treatment can be ineffective unless the switch is recognized and additional repositioning maneuver...

Grid computing technologies are increasingly being used to aggregate computing resources that are geographically distributed across different locations. Commercial networks are being used to connect these resources, and thus serve as a fundamental component of grid computing. Since these grid resources are connected over a shared infrastructure, it is essential that we consider their effect dur...

The orexins (orexin-A and orexin-B) are neuropeptides that are secreted from neurons in the lateral hypothalamus and that participate in the regulation of feeding behavior. It remains to be determined, however, how the orexins exert their effects on feeding behavior, including masticatory movements. To this end, we analyzed food intake behavior and masticatory muscle activity using video analys...