It is proved that if H (u) is non-decreasing and if H (?1) 6 = H (+1), then if u(x) describes a graph over a disk B R (0), with (upward oriented) mean curvature H (u), there is a bound on the gradient jD u(0)j that depends only on R, on u(0), and on the particular function H (u). As a consequence a form of Harnack's inequality is obtained, in which no positivity hypothesis appears. The results ...

Steps taken to alleviate under-reporting of transfusion reactions at a public sector hospital in Pakistan TO THE EDITOR: A transfusion reaction (TR) is any untoward event that occurs during or after blood transfusion and is not related to the patient's underlying illness. It has been estimated that about 10% of all transfusions carry the risk of an adverse event [1]. Both, infectious and non-in...

OBJECTIVE To evaluate the effect of home-use bleaching agent containing 16% Carbamide Peroxide (CP) and in-office bleaching agent containing 38% Hydrogen Peroxide (HP) on enamel micro-hardness. STUDY DESIGN An in vitroexperimental study. PLACE AND DURATION OF STUDY Department of Operative Dentistry and Science of Dental Materials at Dr. Ishrat-ul-Ebad Khan Institute of Oral Health Sciences,...

On Sum Coloring of Graphs Mohammadreza Salavatipour Master of Science Graduate Department of Computer Science University of Toronto 2000 The sum coloring problem asks to nd a vertex coloring of a given graph G, using natural numbers, such that the total sum of the colors of vertices is minimized amongst all proper vertex colorings of G. This minimum total sum is the chromatic sum of the graph, ...

and closed hollow obturators, inflatable obturators and 2-piece 3 hollow obturator prosthesis. This clinical series describes the fabrication of hollow definite obturators utilizing mechanical The term maxillectomy is used by maxillofacial surgeons to means and anatomical structures of patients left at the surgical describe partial or total removal of the maxillae in patients site for its reten...

A review was made in the MR studies including cine MR and surgical and pathological reports of ten patients with surgically confirmed strangulated small bowel obstruction to establish criteria for a definite MR diagnosis and indications for surgery. Akinesis of the closed loop and movement in surrounding bowel loops (peristalsis gap) were noted in all patients. lntraluminal low-intensity on TPw...

Ion-selective calcium microelectrodes were inserted into the compound eyes of the wild-type sheep blowfly Lucilia or into the retina of the no steady state (ms) mutant of Lucilia. These electrodes monitored light-induced changes in the extracellular concentration of calcium (A[Ca2+]o) together with the extracellularly recorded receptor potential. Prolonged dim lights induced a steady reduction ...

The performance of precast shear wall panel structures subjected to earthquakes relies on the behaviour and integrity of the connections between the panels. The current lack of knowledge on the seismic behaviour of precast wall connections limits the use of such systems in earthquake areas. This paper presents results of an extensive experimental program undertaken at the University of Manitoba...