| purification and characterization of a family of high molecular weight surface-array proteins from campylobacter fetus. | a variety of gram-negative and gram-positive bacteria possess crystalline surface layers, although little is known of their function. we previously have shown that the high molecular weight surface-array proteins of campylobacter fetus are important in both the pathogenicity and antigenicity of this organism. for biochemical and immunological characterization, we purified high molecular weight (100,000, 127,000, 149,000) surface-array proteins from three c. fetus strains using sequential gel fil ... | 1988 | 3360785 |
| ingestive behavior of rats with ibotenic acid lesions of the dorsomedial hypothalamus. | rats with electrolytic or kainic acid (ka) lesions of the dorsomedial hypothalamic nucleus area (dmha-l) are hypophagic, hypodipsic, and have a reduced body weight (bw) compared with controls. in the present study, male sprague-dawley rats received bilateral ibotenic acid (ibo) lesions of the dmha (3 micrograms in 0.3 microliter) or sham (s) operations. during the next 32 days the ibo dmha-l rats showed reduced (p less than 0.01) food and water intake, bw, and linear growth (p less than 0.03), a ... | 1987 | 3578558 |
| inhibition of the differentiation of candida albicans by the chelator 1,10-phenanthroline. | several chelators were examined for their ability to prevent the synchronous release of 24- to 48-hour stationary phase singlet cells of the dimorphic yeast candida albicans into either the mycelial or the budding phenotypes (in a defined liquid medium at 37 degrees c; at ph 6.5 or ph 4.5, respectively). the only chelator that was found to inhibit mycelium formation completely and to restrict bud formation to about 10% was 1,10-phenanthroline at minimal concentrations of 50 microm and 230 microm ... | 1985 | 3937057 |
| model utilization in evaluation of a dial-a-dietitian system. | the purpose of this study was to determine the effectiveness of selected factors of performance of a telephone delivery system, dial-a-dietitian, which was established to provide nutrition information to the public. a model, developed for this use, entailed a systems approach with five phases, which included enabling factors (inputs), the interaction process, effort factors (outputs), performance (outcome), and feedback (reporting). the data analysis indicated that the dial-a-dietitian program w ... | 2014 | 3973325 |