Publications by authors named "Karen Riggs"

There is a lack of data for how the viability of biological agents may degrade over time in different environments. In this study, experiments were conducted to determine the persistence of Bacillus anthracis and Bacillus subtilis spores on outdoor materials with and without exposure to simulated sunlight, using ultraviolet (UV)-A/B radiation. Spores were inoculated onto glass, wood, concrete, and topsoil and recovered after periods of 2, 14, 28, and 56 days.

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After the release of radioactive materials from a large radiological dispersal device (e.g., dirty bomb), improvised nuclear detonation, or nuclear power plant accident, up to hundreds of square miles may be contaminated.

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Alliances, affiliations, and partnerships continue to grow as one way for health care organizations to better serve their customers and compete with other organizations and networks. These organizational relationships are often promoted through co-branding joint programs and services. A study of consumers was conducted and shows that these organizational relationships positively affect consumer future behavior and benefit the organizations involved.

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Customer advisory groups (CAGs) are formal groups of customers (referring physicians, patients, health insurance brokers, etc.) who meet regularly to share their ideas and to provide feedback to proposed or existing marketing strategies, programs, and activities. While CAGs are very prevalent in other industries they appear to be relatively underutilized in health care.

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Pressure on health care marketers to demonstrate effectiveness of their strategies and show their contribution to organizational goals is growing. A seven-tiered model based on the concepts of structure (having the right people, systems), process (doing the right things in the right way), and outcomes (results) is discussed. Examples of measures for each tier are provided and the benefits of using the model as a tool for measuring, organizing, tracking, and communicating appropriate information are provided.

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Article Synopsis
  • The mid-1990s saw the introduction of high-energy carbon dioxide lasers, which led to the rise of laser skin resurfacing techniques useful for both therapeutic and cosmetic applications.
  • CO(2) lasers can work in both continuous and pulsed modes, with the latter being ideal for epidermal ablation due to effective energy absorption by water in tissues, while the Erbium YAG laser, with a wavelength closer to water's absorption peak, results in less thermal damage and surface ablation.
  • Despite the effectiveness of these traditional laser systems, public interest has shifted to newer nonablative technologies that offer quicker recovery by remodeling the dermis without damaging the epidermis, leaving their comparative efficacy uncertain due to a lack of blinded
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Long-term measurements of the atmospheric concentrations of PCDDs, PCDFs, and coplanar PCBs were taken in rural and remote areas of the United States by the National Dioxin Air Monitoring Network (NDAMN). A total of 21 quarterly sampling moments occurred from June, 1998 to December, 2002 at 34 locations geographically distributed throughout the United States. Sampling sites were located in rural and remote areas to obtain background air concentrations of dioxin-like compounds.

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