o-Succinylbenzoyl coenzyme A (OSB-CoA) synthetase, when treated with diethylpyrocarbonate (DEP), showed a time-dependent loss of enzyme activity. The inactivation follows pseudo-first-order kinetics with a second-order rate constant of 9.2 x 10(-4) +/- 1.4 x 10(-4) microM(-1) min(-1). The difference spectrum of the modified enzyme versus the native enzyme showed an increase in A242 that is char...

Random flake deposition in mat forming of oriented strandboard (OSB) results in inherent horizontal density variation that affects the panel strength quality. In this paper, a silicon gel coupled ultrasonic transmission (UT) was used to locate, map, and validate the horizontal density distribution in laboratory-made OSB. Two test boards were manufactured at each of three nominal density (ND) an...

Five kinds of commercially available wood-based composites (softwood plywood, hardwood plywood, medium density fiberboard, oriented strand board, and particle board, hereinafter abbreviated as SWP, HWP, MDF, OSB, and PB, respectively) post-treated with alkaline copper quat (ACQ) and copper azole (CA) were exposed to decay and subterranean termite activity under protected above-ground conditions...

.4 tuo-d~nlen\io~l,lI motlel lo pretlict engineering const;lnts ot' o~.ic~jted strandhoard (OSB) was tievclopccl sing a continuum theory. The orthotropic flake properties, flahe alignment distrihution. ant1 panel \hclling !ratio (as measured by flake weight ratio, FWK, between face layer and entire board) l o r three-layer OSB werc considered in the model. The two-tcrm cosine prohability densit...

BACKGROUND The epidemiology, outcome and management of olecranon septic bursitis (OSB) have not been described in a large cohort of ambulatory patients. METHODS A retrospective study of all 118 cases of OSB presenting over 21 months to all regional Home Parenteral Therapy Program clinics in Calgary (referral base approximately 1 million). RESULTS The minimum population annual incidence was ...