The thyroid gland is a very rare site for head and neck schwannomas. Till date there have been only 19 reported cases in English literature. Only 25% of schwannomas occur in the head and neck region, most of them arising in relation to the peripheral nerves and cervical sympathetic chain. We report a similar case, with clinical and sonological features of a benign thyroid nodule. The diagnosis ...

Flexural toppling failure is a common mode of natural and artificial rock slopes, which has caused serious damage to human life property. In this work, an advanced numerical method called the Universal Distinct Element Code (UDEC) was used study mechanism flexural failure. total, more than twenty slope models were built analyzed. Two new parameters (displacement discontinuity transition coeffic...

BACKGROUND Correlation of intraoperative frozen section diagnosis with final diagnosis can be an important component of an institution's quality assurance process. METHODS We performed a quality assurance review of 1207 frozen section diagnoses from 812 surgical cases performed in the Hamilton Regional Laboratory Medicine Programme during a 6-month period in 2007. We reviewed the frozen secti...

By studying the physics behind toppling dominoes we are able to create a theory to predict the time for the dominoes to fall and if necessary, find an arrangement of dominoes that will optimize the topple time. The conservation of energy is used and all interactions between the dominoes are neglected except for the initial impact. Using the number of dominoes, the geometry of the chain, and the...

In this paper we consider the problem of multi-person detection from the perspective of a head mounted stereo camera. As pedestrians close to the camera cannot be detected by classical full-body detectors due to strong occlusion, we propose a stereo depth-template based detection approach for close-range pedestrians. We perform a sliding window procedure, where we measure the similarity between...

Toppling of individual rock blocks resting on an inclined surface has often been observed in nature. This instability mechanism typically analysed for simple block geometries, considering the contact between and base where it lies is a planar surface. In this study, authors analyse case regularly rough To do that, resort to analytical limit equilibrium formulations, laboratory physical models d...