Selenoproteins have been shown to exhibit a variety of biological functions, including antioxidant functions, maintaining cellular redox balance, and heavy metal detoxification. UV irradiation-induced damage is partially mediated by increased oxygen radical production. The present study is designed to examine the antioxidative effects of human selenoprotein H (hSelH) after brief period of UVB i...

In this paper, an M/M/1 queue with working vacation and vacation interruption is investigated. The server is supposed to take a working vacation whenever the system becomes empty and if there are at least N customers waiting in the system at a service completion instant, vacation interruption happens and the server resumes a normal working period. A matrix geometric approach is employed to obta...

THE events taking place as a patient emerges from anaesthesia are not well understood and several theories have been advanced to explain the phenomena that occur during this period. However, their exact cause will probably not be found as long as the basic mechanisms of anaesthesia are not entirely clear. A small number of clinical facts are, nevertheless, well established; an example is the we...

BACKGROUND Facial hypoesthesia is one of the most troublesome complaints in the management of facial bone fractures. However, there is a lack of literature on facial sensory recovery after facial trauma. The purpose of this study was to evaluate the facial sensory recovery period for facial bone fractures using Neurometer. METHODS Sixty-three patients who underwent open reduction of zygomatic...

This is a descriptive study based on the theory of human error, in order to analyze and classify nursing errors during the nursing care of surgical patients at recovery. Twenty-five (25) fault reports were collected through a semi-structured interview. Those reports were submitted to 15 nurse experts to evaluate the risk of seriousness; human, equipment and organizational factors involved; memb...

We prove that certain stacks of slope-semistable twisted sheaves on orbisurfaces are non-empty and geometrically irreducible. Using these results, we prove the standard period-index conjecture for Brauer classes over function fields of surfaces over finite fields.

It is shown that the set of 4-period orbits in outer billiard with piecewise smooth convex boundary has an empty interior, provided the boundary is not a parallelogram.