Introduction: The diagnosis of foreign bodies in the upper aerodigestive tract is usually straightforward but sometimes it can be delayed or the location of esophageal and upper airway foreign bodies can be mistakenly interchanged.  Case Report: We present two interesting cases that caused diagnostic challenges which could have led to serious complications if a greater delay in diagnosis ha...

Here, a two server queueing system with Poisson arrivals and two different types of customers (M/H2/2 queue) is analyzed. A novel straightforward method is presented to acquire the exact and explicit forms of the performance measures. First, the steady state equations along with their Z-transforms are derived for the aforementioned queueing system. Using some limiting behaviors of the steady-st...

Stereoscopic visualization plays a significant role in the detailed and accurate interpretation of various geometric features on surface archaeological artifacts, which can be challenging to perceive using conventional two-dimensional visualizations. Moreover, virtual 3D models shared with other archaeologists for exchange opinions. The hardware requirements rendering stereoscopic are often rea...