PubMed Health⌕ Search

Biomedical subjects

M T Gordon

Publications and source records attributed to M T Gordon.

27 records · Page 2Linked to original sources

Coping with urban crime: women's use of precautionary behaviors.

This investigation examines the impact of three sets of variables, neighborhood conditions, psychological factors, and life circumstances, on women's use of behaviors designed to protect themselves from criminal victimization. Participants in the study were 299 women living in Philadelphia, Chicago, and San Francisco. Two types of precautionary behaviors were identified: avoiding dangerous situations (e.g., by not going out alone at night) and managing risks in the face of possible danger (e.g., by asking repairmen for identification). The three sets of variables were better able to predict avoidance than risk-management behavior. Commonality analyses revealed that psychological factors uniquely accounted for the largest proportion of the variance in the use of both types of precautions. In multiple regression analyses, fear, perceived physical competence, race, and education were significant predictors of avoidance, while fear and perceptions of local social disorder had significant regression effects on risk-management. Implications of the results for research and social policies regarding the impact of crime on communities are discussed, and this area is suggested as a rich context for the exploration of styles of coping with environmental stressors.

Adaptation, Psychological↗

Rapid continuous monitoring of enzyme activity in tissue sections: experience with the M85A and Zeiss UMSP-30 systems.

We have previously described methods for the continuous monitoring of formazan deposition in tissue sections with a system based on the Vickers M85A microdensitometer. However, this instrument only allows the monitoring of a single field in each section. We have now developed a new system based on the Zeiss UMSP-30 microspectrophotometer. This machine is entirely computer controlled and by virtue of its fast-scanning stage allows the rapid (less than 0.5 s) sequential monitoring of multiple fields (up to 35) in each section. Thus a number of cell types may be studied simultaneously and work which used to take a full working day with the M85A system now can be performed in 45 min. As with the M85A the Zeiss system has full capability for data analysis (i.e. calculation of initial velocity rates, etc.). We have found that continuous monitoring of tissue sections by microdensitometry is a precise, sensitive and biochemically valid method of studying enzyme activity within the cellular matrix.

3-Hydroxysteroid Dehydrogenases↗