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  • 1
    Electronic Resource
    Electronic Resource
    Water Recreation and Risk (1989)
    Oxford, UK : Blackwell Publishing Ltd
    Water and environment journal 3 (1989), S. 0 
    Details
    ISSN: 1747-6593
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: This paper deals with concepts and methods that may be used in the assessment and management of risks associated with aquatic recreation. It aims to explore potential approaches and to indicate their strengths and weaknesses. The paper concentrates on hazards encountered in bathing, swimming and water-contact sports that may be affected by water quality. Aspects discussed include: the role of society in regulating risks that are taken voluntarily by individuals; the difficulties of measuring those risks by means of epidemiological studies; the questionable predictive power of bacterial indicators and the problem of finding a satisfactory rationale for determining the standards for recreational waters.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1747-6593.1989.tb01361.x
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    An evaluation of the performance of ten commercial luminometers (1989)
    New York : Wiley-Blackwell
    Journal of Bioluminescence and Chemiluminescence 3 (1989), S. 131-145 
    Details
    ISSN: 0884-3996
    Keywords: Luminometer ; evaluation ; rapid microbiology ; ATP assay ; firefly luciferase ; photometer ; radiometer ; comparison ; Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: An assessment has been carried out of the relative performance of ten instruments for quantification of adenosine triphosphate (ATP) by the firefly luciferase assay. The instruments evaluated were Amersham Amerlite Analyser, Dynatech Tube Luminometer, Dynatech Multiplate Luminometer, Dynatech Camera Luminometer, Hamilton Lumicon, LKB 1250 Luminometer, LKB 1251 Luminometer, Lumac Biocounter M2010A, Turner 20 TD Luminometer and a prototype version of the CLEAR Speed Tech 2000. An 800-fold difference in sensitivity was found between the most sensitive (Lumac, Turner) and the least sensitive (Dynatech Tube) of the conventional instruments. The Dynatech Camera Luminometer which worked on a completely different principle to the other instruments was about 5000 times less sensitive than the best of the photomultiplier tube instruments. The relative sensitivity of the instruments was maintained regardless of whether solutions of ATP in water or trichloroacetic acid extracts of bacteria were analysed. An analysis of 960 ATP bioluminescence assays showed that data obtained from such measurements are normally distributed.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bio.1170030307
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    Paper (German National Licenses)
    Fulltext
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