Factors affecting candicidin synthesis and mycelial growth of Streptomyces griseus IMRU 3570 were studied. Inorganic phosphate was found to inhibit candicidin synthesis but to stimulate mycelial growth. Zinc, iron, and magnesium ions stimulated candicidin synthesis at relatively high concentrations in a complex medium but not in a synthetic medium. No other factors studied, such as temperature,...

Life span of mature blood cells is ephemeral, reqUIrIng hematopoiesis throughout life. A complex network of hematopoietic progenitor cells and cytokines maintain an enormous daily production of granulocytes, monocytes, erythrocytes, platelets, and lymphocytes. This population of hematopoietic cells must be able to respond rapidly to changing needs such as bleeding, infections, cancer, or exposu...

In this paper I consider the problem of determining an equitable allocation of resources in production economies in which factors must be dedicated to production. That is, although they might be used to produce various consumption goods, they cannot be consumed directly. I …rst establish that in such economies, envy-free and e¢ cient allocations exist under standard assumptions, whereas that is...

In vitro embryo production (IVP) is currently one of the most important biotechnologies in cattle breeding and husbandry. However, the efficiency of in vitro embryo production is still low with only 30-40% of oocytes developing into blastocysts, probably because, the in vitro environment cannot mimic in vivo environment and results in embryos that have altered morphology and gene expression. Se...