BACKGROUND Improper treatment of infectious waste can cause numerous adverse environmental and health effects such as transmission of diseases through health personnel and other susceptible groups,who come in contact with such wastes. On the other hand, selection of appropriate treatment alternatives in infectious waste management has become a challenging task for public health authorities espe...

Typically aerospace components produced using the Resin Transfer Molding (RTM) process are required by specification to use very high final injection pressure. This is believed to be necessary to produce a laminate that is void free and that produces structural equivalence to historical autoclave moldings. However, a low pressure RTM process has been developed, tested, and validated that produc...

Experiments are described with glass fibre filter paper and complete glass filters as fitted to high pre-vacuum autoclaves to determine whether organisms can grow or penetrate through the filters. A filter consisting of four layers of glass fibre paper fitted inside a sterilizer chamber for a year and used for 96 sterilization cycles was found to have retained its initial efficiency.

For use in virological tissue culture work, gentamicin is more convenient than penicillin + streptomycin. It is bactericidal for a wider range of organisms, may be used at only half the concentration needed for penicillin and streptomycin, does not apparently interfere with growth of tissue cultures and viruses, remains active at 37 degrees C., and, most remarkable of all, it is stable at autoc...

MDA is designed as a test bed for an astrobiology field instrument to detect microbial metabolic activity in terrestrial or extraterrestrial geological soil samples. MDA employs electrochemical sensors in a unique differential chamber configuration, able to detect minute changes in the chemical composition between the two otherwise identical chambers. Both chambers are filled with identical aut...