The results of chemonucleolysis in 48 patients with lumbar disc disease revealed marked improvement in 58%, slight improvement in 23%, and no improvement in 19%. Serious anaphylactic reactions occurred in two patients. These results and those of other neurosurgical and orthopaedic studies are summarized and compared with the 70% improvement rate obtained with a placebo in a recent double blind ...

PURPOSE The present study was undertaken to detect metallo-beta-lactamase (MBL) in nosocomial isolates of Pseudomonas aeruginosa by four different phenotypic methods. METHODS Ninety-one consecutive P. aeruginosa isolates were subjected to susceptibility testing by disc-diffusion assay and Vitek 2. Imipenem resistance was determined by three different methods (disc-diffusion, Vitek 2 and E tes...

OBJECTIVE To determine the prevalence of extended spectrum b-lactamase at King Khalid University Hospital, Riyadh, Kingdom of Saudi Arabia and to compare the ability of the disc diffusion, double disc potentiation methods and the extended-spectrum b-lactamase E test to detect exended-spectrum b-lactamase among enterobacteriaceae. METHODS This study was undertaken during the time period period...

We numerically study the long-term evolution of the accretion disc around the neutron star in a coplanar Be/X-ray binary with a short period and a moderate eccentricity. From three dimensional Smoothed Particle Hydrodynamics simulations, we find that the disc evolves through three distinct phases, each characterized by different mass accretion patterns. In the first ”developing phase”, the disc...

BACKGROUND AmpC type β-lactamases are commonly isolated from extended-spectrum Cephalosporin-resistant Gram-negative bacteria. Also, resistance appeared in bacterial species not naturally producing AmpC enzymes. Therefore, a standard test for the detection of the plasmid-mediated AmpC enzyme and new breakpoints for extended spectrum Cephalosporins are urgently necessary. OBJECTIVES To detect ...

We use the grid of hydrodynamic accretion disc calculations of Stehle (1999) to construct orbital phase dependent emission line profiles of thin discs carrying spiral density waves. The observational signatures of spiral waves are explored to establish the feasibility of detecting spiral waves in cataclysmic variable discs using prominent emission lines in the visible range of the spectrum. For...

AIMS To determine if 'Defocus Incorporated Soft Contact' (DISC) lens wear slows childhood myopia progression. METHODS A 2-year double-blind randomised controlled trial was carried out in 221 children aged 8-13 years, with myopia between -1.00 and -5.00 Dioptres (D) and astigmatism ≤1.00 D. Subjects were randomly assigned to the DISC (n=111) or single vision (SV; n=110) contact lens group. DIS...

Purpose: To evaluate the performance of the Combination Double Disc Method in the identification of ESBL-producing Enterobacteriaceae isolates. Materials and Methods: A total of 44 clinically relevant Enterobacteriaceae isolates were examined. The ESBL classification furnished by Combination Double Disc Test Method was concordant with that of the comparison method (Etest ESBL and molecular iden...

EDITOR,—Doubling of the optic disc is rare and can manifest as true or pseudo doubling. A 64 year old man was referred by his physician who noted “a clear area between each optic disc on both sides” during a routine check. Visual acuities and anterior segments were normal. Funduscopy revealed an appearance simulating double optic discs on each side. The right eye showed a 2 disc diameter (DD) s...