Obscurities exist about the date and the circumstances under which the American Epidemiological Society (AES) came into being. These revolve around the question as to whether or not the Society actually was an outgrowth of an earlier organization-the Biggs Club. The latter was a small group of good friends who had worked with, or had a common interest in that distinguished American public healt...

Variations in formation of the superficial palmar arch are common. A classic superficial palmar arch is defined as direct continuity between the superficial branch of the ulnar artery and superficial palmar branch of the radial artery. During routine dissection classes to undergraduate medical students we have observed formation of superficial palmar arch solely by superficial branch of ulnar a...

Direct arterial blood pressure monitoring via the radial artery is a relatively common method employed during the perioperative period. Complications attributed to radial artery catheterization are extremely rare but can include thrombosis, ischemia, infection, and aneurysm formation at the site of catheter insertion. This report describes an episode of hand ischemia in a pediatric patient. The...

Sir, S radia l ar tery thrombosis have been repor ted and t rea ted by thrombectomy or by vein grafting using microsurgical techniques. This case of spontaneous radial artery thrombosis recanalised by streptokinase infusion over extended period of 24 hours with achievement of total patency and full functional recovery of hand and digits is being reported. Radial artery thrombosis may be spontan...

Article Information To assess sexual behaviour, attitudes and risk perception about HIV/AIDS among out-of-school anti-AIDS club member and non-member youths in Mettu and Bedelle towns. The study applied a case control study design. The cases are club members those registered in the out-of-school anti-AIDS clubs and actively participated for at least one year. Controls are non-club member who ha...

The purpose of this study was to investigate central nervous system (CNS) strategies for controlling multifinger forces during a circle-drawing task. Subjects drew 30 concentric, discontinuous clockwise and counter clockwise circles, at self and experimenter-set paces. The three-dimensional trajectory of the pen's center of mass and the three-dimensional forces and moments of force at each cont...

Case Report A right-hand dominant 10-year-old boy fell onto his outstretched hand and twisted his left elbow while jumping over a drain. He was only seen four days after the injury and presented with a swollen left elbow with a severely limited range of motion. There was no pain or tenderness over the distal forearm or wrist. There were no associated open wounds or neurovascular defi cits. Radi...

A 54 year old man sustained a third degree open fracture at the distal part of the right humerus with massive soft tissue defect involving most of the upper arm. The radial and median nerves were completely bared and exposed by 6 cm for radial and 3 cm for median nerve. The nerves were in continuity, but there was complete rupture of surrounding muscles: biceps, triceps and brachialis. The frac...

Given an undirected graph G and an integer k, a k-club is a subset of nodes that induces a subgraph with diameter at most k. The k-club problem consists of identifying a maximum cardinality k-club in G. It is an NP-hard problem. The problem of checking if a given k-club is maximal or if it is a subset of a larger k-club is also NP-hard, due to the non-hereditary nature of the k-club structure. ...

Club cells are known to function as regional progenitor cells to repair the bronchiolar epithelium in response to lung damage. By lineage tracing in mice, we have shown recently that club cells also give rise to alveolar type 2 cells (AT2s) and alveolar type 1 cells (AT1s) during the repair of the damaged alveolar epithelium. Here, we show that when highly purified, anatomically and phenotypica...