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  • 1
    Electronic Resource
    Electronic Resource
    A Controlled Investigation into the Measurement Properties of Two Circumferential Penile Strain Gauges (1985)
    Oxford, UK : Blackwell Publishing Ltd
    Psychophysiology 22 (1985), S. 0 
    Details
    ISSN: 1469-8986
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine , Psychology
    Notes: A Barlow-type electromechanical strain gauge and an indium/gallium-in-rubber strain gauge were compared for linearity of output, replicability, stability, and sensitivity to temperature changes. Distension of the strain gauges was achieved by placing them on standard size glass dilators, while temperature changes were produced and monitored in a controlled environment. Both gauges demonstrated comparable and very linear outputs and both had high test-retest reliability. Variations in temperature affected the outputs for both gauges, although for neither did they affect the degree of linearity between pen deflection and circumference. The electromechanical strain gauge was marginally less sensitive to temperature changes than the indium/gallium gauge, although for neither was the degree of error introduced of great practical significance. Although the output from the electromechanical strain gauge was slightly less stable over time than that from the indium/gallium gauge, when all variables were considered, the former gauge was marginally preferred over the latter.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1469-8986.1985.tb01653.x
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    RANDOM ASSIGNMENT TO TREATMENT GROUPS: (1979)
    Oxford, UK : Blackwell Publishing Ltd
    Criminology 17 (1979), S. 0 
    Details
    ISSN: 1745-9125
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Law
    Notes: A persistent problem in evaluation research relates to the difficulty of using true experimental designs. In particular, random assignment of subjects to treatment groups is both very important to insure the internal validity of the design and very difficult to implement due to logistical and ethical aspects of field research. This paper reports on a strategy for randomization which was adapted to judicial research: specifically to the evaluation of o program for adjudicating minor traffic offenders. It is demonstrated that through careful planning and coordination, designs involving random assignment can be instituted without involving significant difficulties.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1745-9125.1979.tb01289.x
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    1,6-Interactions between dimethylamino and aldehyde groups in two biphenyl derivatives (2001)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 57 (2001), S. 851-853 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: The title compounds, 2-(dimethylamino)biphenyl-2′-carboxaldehyde, C15H15NO, and 2-(dimethylamino)biphenyl-2′,6′-dicarboxaldehyde, C16H15NO2, show similar 1,6-interactions [N...C=O 2.929 (3) to 3.029 (3) Å] between the dimethylamino and aldehyde groups located in the ortho positions of the two rings, which lie at 58.1 (1)–62.4 (1)° to each other.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108270101006369
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  • 4
    Electronic Resource
    Electronic Resource
    Regulation of spvR, the positive regulatory gene of Salmonella plasmid virulence genes (1994)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 116 (1994), S. 0 
    Details
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Abstract The regulation of the spvR promoter from the Salmonella dublin virulence plasmid was monitored using proter-reporter gene fusion constructs. Activity was dependent upon the presence of the spv region and was affected by the number of copies of the spv region present with the cell. Activity remained constant throughout exponential growth, and increased rapidly with the onset of stationary phase, under both aerobic and anaerobic conditions. Additionally, the level of spvR expression was controlled by the availability of iron, activity being greatest under low iron conditions in stationary phase. The spvA gene product negatively regulated spvR expression in a dose-dependent manner, indicating that SpvA provides a negative feedback mechanism for this operon.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1574-6968.1994.tb06684.x
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