Dan Masters

Learn More
Glutamate synthase, isolated in apparently homogeneous form (Mr approximately 265,000) from Saccharomyces cerevisiae after 7500-fold purification, is markedly inhibited by homocysteine sulfonamide. Inhibitions competitive with respect to L-glutamine; the apparent Ki value calculated for L-homocysteine sulfonamide is 3.6 microM; the apparent Km value for(More)
The seasonality and factors associated with Cryptosporidium infection were assessed in a cohort of HIV-infected patients in Los Angeles County to better define the epidemiology of cryptosporidiosis among individuals with HIV. Data were analysed from a cohort of 4247 patients > or = 13 years of age with HIV infection enrolled from four outpatient facilities(More)
We investigate the physical properties of a sample of six submillimeter galaxies (SMGs) in the COSMOS field, spectroscopically confirmed to lie at redshifts z > 4. While the redshifts for four of these SMGs have been previously known, we present here two newly discovered z spec > 4 SMGs. For our analysis we employ the rich (X-ray to radio) COSMOS(More)