Maryland power plant cooling-water intake regulations and their application in evaluation of adverse environmental impact.

Maryland's cooling-water intake and discharge regulations, the Code of Maryland Regulations (COMAR) 26.08.03, stem from Sections 316(a) and (b) of the Clean Water Act (CWA).

Efficacy of INOVOJECT egg injection system for delivering Marek's disease vaccine under hatchery conditions.

The ability of the INOVOJECT egg injection system to effectively deliver the appropriate titer of herpesvirus of turkeys (HVT) vaccine during normal hatchery operation was evaluated. The INOVOJECT machines configured for the Jamesway and Chickmaster commercial hatchers both maintained the integrity of the HVT vaccine without an appreciable loss in titer from the diluted vaccine to the egg.

Determination of molecular mass of the aroid alternative oxidase by radiation-inactivation analysis.

The functional molecular mass of the cyanide-resistant salicylhydroxamate-sensitive duroquinol oxidase activity from Sympocarpus foetidus (skunk cabbage) and Sauromatum guttatum spadix mitochondria was determined by radiation-inactivation analysis. The functional molecular mass for the oxidase activity was found to be 26,700 Da for skunk cabbage and 29,700 Da for Sauromatum guttatum mitochondria frozen at -70 degrees C. Irradiation of dried mitochondrial samples resulted in a larger target size of 38,000 Da, and in some cases, a stimulation of activity at low dose of radiation.

Action mechanism of Escherichia coli DNA photolyase. III. Photolysis of the enzyme-substrate complex and the absolute action spectrum.

The absolute action spectrum of Escherichia coli DNA photolyase was determined in vitro. In vivo the photoreactivation cross-section (epsilon phi) is 2.4 X 10(4) M-1 cm-1 suggesting that the quantum yield (phi) is about 1.

The influence of repair systems on the presence of sensitive and resistant fractions in the relation of survival of colony-forming ability in Escherichia coli to UV exposure.

In the experimentally observed relationship between survival of colony-forming ability and the amount of exposure to ultraviolet light, two characteristics are generally found. First, sensitive and resistant components often show. Second, there is often a shouldered character to the survival.