This pilot study was designed to test the null hypothesis that tnere is no significant difference between the information obtained by the indigenous Mexican Health Worker on the initial visit to a Mexican patient and that obtained by the professional . . .

This study was undertaken to investigate seasonal acclimatization in two populations of Hyalella azteca as measured by their oxygen consumption. One population was taken from a high Mg habitat and one from a low Mg environment. No significant seasonal . . .

Penicill ium exnansum is a common fungus occurring in the organic debris in soil. It can also be found in food products, such as grains, cereal products, eggs and chickens (Raper and Thorn, 194-9). However, it is most common in ripe fruits suc . . .

Pseudomonas aeruginosa is an opportunistic pathogen that commonly causes serious nosocomial infections. P. aeruginosa’s virulence is derived from its large genome that allows adaptations to many environments and high antibiotic resistance. Gene sequ . . .

The discovery of antitoxins to both diphtheria and tetanus toxins dramatically introduced two immunological phenomena to twentieth-century science. First, biologically active molecules, such as toxins and enzymes, may have the potential to be neutr . . .