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  • 1
    ISSN: 1573-904X
    Keywords: gamma scintigraphy ; gastrointestinal transit ; mean caecum arrival time (MCAT) ; mean gastric residence time (MGRT) ; pellets ; statistical moments
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The gastrointestinal transit of multiple units (e.g., pellets), as determined by gamma scintigraphy, has been characterized by the application of statistical moments. Stomach emptying profiles can be described comprehensively by Mean Gastric Residence Time (MGRT) and Variance of Gastric Residence Time (VGRT) and caecum arrival data by Mean Caecum Arrival Time (MCAT) and Variance of Caecal Arrival Time (VCAT). This maximizes the data available, which is not the case when only described as 50% values. The statistical moments provide different information about the data observed compared to the classical descriptors, as there was only limited correlation between these two sets of parameters. Statistical moments therefore provide an important quantification of the process studied, and they can be used in any statistical test, where it is required to compare different experimental conditions.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Natural hazards 16 (1997), S. 219-241 
    ISSN: 1573-0840
    Keywords: hazard mitigation ; federal emergency legislation ; mitigation policy ; mitigation programs ; emergency management ; IDNDR
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Geography , Geosciences
    Notes: Abstract Exposure to natural hazards tends to be poorly understood and yet implicitly accepted by a large proportion of populations at risk. Some people through years of experience and time-tested coping mechanisms effectively respond to most hazards. Others, lacking skills and experience, are dependent on institutional response systems for immediate assistance and long-term recovery. Clearly, both approaches can reduce losses; however, the former strategies often prove more cost effective. How then, can loss reduction be handled with minimal external involvement? Are there not strategies that can reduce the impact of natural hazards and minimize exposure to these risks? Introduction of hazard mitigation strategies can begin to address these concerns in a timely and cost effective manner. Federal institutions in Canada and the United States recognize this potential, and in response, have developed policies and designed programs to limit the impact of hazards. To further collective thinking on hazard mitigation, this paper surveys current legislation and programs in both countries, makes a comparative assessment, and seeks to identify implications for mitigation policy within the framework of the Canadian IDNDR initiative. Perceptions of mitigation are explored to create a common foundation from which to address the nature, direction, and structure of mitigation policy and programs in Canada. Clarity of purpose, awareness of context, and acknowledgment of limitations and conflicts represent crucial aspects in the evolution of mitigation strategies. Through awareness, understanding, and a willingness to engage in dialogue new ways of thinking can be employed to decrease the impact of natural hazards on society and the environment.
    Type of Medium: Electronic Resource
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