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Biomedical subjects

M G Wolman

Publications and source records attributed to M G Wolman.

7 recordsLinked to original sources
PubMed2001

Early development of systems analysis in natural resources management from man and nature to the miami conservancy district.

Contemporary approaches to natural resources and environmental decision-making typically draw on a "systems" perspective to assess and improve management strategies. This paper describes the early genesis of the systems analysis approach. It concentrates on a period between the mid-19th to early 20th centuries. During the early part of this period, George Marsh's Man and Nature and related works laid out an approach to problem-solving that recognized the relationship among physically disperse elements in the environment, the need to balance benefits against costs, the potential for using quantitative modeling to understand management options, and the importance of integrating human and natural components into solutions. In the early 20th century, the Miami Conservancy District project brought this approach to fruition with its use of complex simulation and optimization modeling, detailed cost-benefit analysis, and its linking of economics, engineering, science, and law into a far-reaching solution to a complex water resources problem. The objective of this paper is to describe the early development and application of this conceptual approach to problem-solving. An examination of the origins of natural resources systems analysis can broaden one's perspective of the contemporary field to understand its roots as a philosophy for environmental problem-solving.

Conservation of Natural Resources↗
PubMed2000

Fragmentation of patient care between chiropractors and family physicians.

BACKGROUND: Most patients using alternative practitioners also receive care from physicians. It is unclear, however, how well alternative practitioners and physicians communicate and coordinate the care of shared patients. OBJECTIVE: To describe the communication and coordination of care for shared patients between chiropractors and family physicians as well as potential barriers to effectively sharing care. DESIGN, SETTING, AND PARTICIPANTS: A cross-sectional national random sample survey of 400 chiropractors and 400 family physicians. MAIN OUTCOME MEASURES: Reports on shared patients including information on adverse events, treatment, and health status. Attitudes toward perceived expertise as well as perceived liability and economic competition involved in sharing care were also assessed. RESULTS: Surveys were completed by 360 (49%) of the 736 eligible practitioners, including 227 chiropractors and 133 family physicians. Although a high degree of interaction occurs between the practitioners, family physicians received information from chiropractors on 26.5% of referred patients while chiropractors received information from family physicians in 25.0% of cases (P = .73). Both groups believed that they did not receive enough information on adverse health outcomes or treatment plans for shared patients. Although neither group was particularly oriented toward wanting to share care, family physicians were much less likely than chiropractors to feel comfortable sharing care (P<.001). CONCLUSIONS: These findings indicate that care is fragmented between chiropractors and the general medical sector, with little information communicated between health care providers on issues with critical importance to quality of care. Further study is needed to identify ways to improve communication and coordination of care.

Chiropractic↗
PubMed1977

Development and verification of a schistosomiasis transmission model.

Development of a model to predict the impact of water resource projects on transmission of schistosomiasis is described and verified with data from 54 villages in Khuzestan Province, Iran. Changes in disease prevalence following construction of an irrigation project are related to the linear extent of snail habitats and size of the infected human population. The model is used to compare the costs and effectiveness of alternative disease control measures. Results indicate that a combined controls program is most cost-effective but further work is needed to determine the optimal combination of controls.

Animals↗