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Biomedical subjects

T M McNamara

Publications and source records attributed to T M McNamara.

5 recordsLinked to original sources
PubMed2000

Health information networks: enabling care management in IDSs.

To be successful, IDSs require streamlined, information integration across the continuum of care. Having this capability enables IDSs to manage care and costs efficiently, provide physicians with enterprisewide access to eligibility information, and respond to the communication and quality demands of patients. For most IDSs, the quickest and most cost-effective way to achieve overall information-system integration is to implement a health information network (HIN) based on Internet technologies. A HIN enables IDS providers and staff to access requisite administrative and clinical information from throughout the enterprise using a Web browser.

Computer Security↗
PubMed1978

Relative microbial activity and bacterial concentrations in water and sediment samples taken in the Beaufort Sea.

A total of 91 water, 8 ice, and 50 sediment samples taken from the southwestern Beaufort Sea were analyzed for relative microbial activity, bacterial cell concentrations, and percentage of respiration (mineralization). These samples were taken during three field-study periods (August to September 1975; April 1976; and August 1976). Both the relative microbial activity and the cell concentrations in water and sediment samples were lower during the April (winter) sampling period than in the August-September (summer) studies. The percentage of respiration of labeled glutamic acid was higher in the winter water samples than in the summer samples. The water samples showed higher percentage of respiration values than did sediment samples. The average maximimum potential rate of glutamic acid uptake was as high or higher than those observed in studies made in more temperate waters. Samples of melted sea ice showed levels of relative microbial activity that were about the same as that found in the associated seawater. When 1:1 mixtures of melted ice and seawater were analyzed for altered microbial activity, little effect could be detected.

Alaska↗
PubMed1977

Comparison between two methods of assaying relative microbial activity in marine environments.

Two methods for determining relative microbial activity in the marine environment were compared. In one method, a single concentration of a labeled substrate was used to calculate rates of substrate utilization; in the other, multiple concentrations of the same substrate (heterotrophic activity method) were used to calculate maximum potential substrate utilization rates. These studies were made on 232 seawater and 79 sediment samples taken from a variety of marine environments. The highest correlations between these two methods were seen in the sediment samples tested. The lowest correlation coerfficient seen in the sediment samples was 0.90, and the highest was 0.98. In seawater samples (six studies), the lowest correlation coefficient was 0.77 and the highest was 0.95. The correlation between these two methods was also substrate concentration dependent. Higher correlation coefficients were observed when higher substrate concentrations were used. Under certain conditions, these two methods appear to be comparable for estimating relative levels of microbial activity in the marine environment.

Antarctic Regions↗