The presence of a chin is a specific and unique feature of the human face that is absent from the face of our hominid ancestors and all other primates. A number of anthropologists have studied this anthropomorphic characteristic and elaborated various theories concerning its genesis and anatomical usefulness. Recent research based on the analysis of stress using the finite element method (FEM) ...

Face recognition, a biometric method of identifying individuals using facial features, has attracted increasing interest and research over the last decade. In this paper, we propose a hierarchical scheme for face recognition. The proposed scheme consists of chin outline classification and holistic facial feature identification. Chin-shape information is characterized by chin curvature, the leng...

Numb chin syndrome (NCS) refers to a rare sensory neuropathy characterized by numbness of the chin within the distribution of the mental or inferior alveolar nerve. Although NCS is usually caused by a benign process, it should not be underestimated and a thorough diagnostic evaluation for a new or known progressive malignancy should always be performed. Here, we report a case of salivary ductal...

CONTEXT Newborns may present a range of motor phenomena that are not epileptic in nature. Chin tremor is an unusual movement disorder that typically starts in early childhood and may be precipitated by stress and emotion. Its pathophysiology has not been fully elucidated. CASE REPORT We describe a full-term newborn that, immediately after neonatal anoxia, presented body and chin tremors that ...

Thoraco-abdominal asynchrony is frequently encountered during inhalation anaesthesia in children with adenotonsillar hypertrophy causing an upper airway obstruction. The study goal was to evaluate the impact of different airway opening manoeuvres on thoraco-abdominal asynchrony as a measure of airway obstruction. Thirty anaesthetized children (aged 2-8 yrs; sevoflurane 3% in 50% oxygen/nitrous ...

STUDY DESIGN This is a prospective, randomized study. OBJECTIVE The purpose was to compare the tissue-pillow interface pressures at the forehead and chin in patients positioned in the prone fashion for spinal surgery on each of 3 facial positioners. SUMMARY OF BACKGROUND DATA Facial pressure ulcers have been infrequently observed after spinal surgery requiring prone positioning. This requir...