Pseudomonas aeruginosa was detected in 24% of the soil samples but in only 0.13% of the vegetable samples from various agricultural areas of California. The distribution of pyocin types of soil and vegetable isolates was similar to that of clinical strains, and three of the soil isolates were resistant to carbenicillin. Pseudomonas aeruginosa multiplied in lettuce and bean under conditions of h...

The mechanical reliability of AMS hydraulic penile prostheses implanted in 203 patients from April 1985 to June 1995 were evaluated. AMS Hydroflex prosthesis showed the highest incidence of mechanical failure (18.8%; 6/32 patients) during a mean follow-up period of 94.5 (64-117) months. Mean functioning time of the prostheses until malfunction was 50 (0-100) months. Bilateral fractures at junct...

The problem of dispersion, advection and adsorption of a tracer in a double-porosity reservoir due to tracer injection in a well with a steady, radially divergent flow field was solved for the case of constant tracer concentration in the injection well. Longitudinal dispersion and advection was assumed to dominate transport in the fracture system and tracer diffusion and adsorption klas assumed...

the relationship between female oviposition preference and offspring performance is a key area of study on the evolution of host specificity. this study investigates host prefer-ence of the polyphagous hover fly syrphus ribesii (diptera: syrphidae) and compares it with some components of its offspring`s performance. females and offspring were tested on six naturally used aphid hosts (blackberry...