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  • 1
    Electronic Resource
    Electronic Resource
    The Psychological Control of Preoperative Anxiety (1975)
    Oxford, UK : Blackwell Publishing Ltd
    Psychophysiology 12 (1975), S. 0 
    Details
    ISSN: 1469-8986
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine , Psychology
    Notes: Forty healthy volunteer hospital patients who had been admitted For therapeutic abortions were given anxiety scale questionnaires during the afternoon of the day before operation. That evening. the anesthesiologist conducted either a “cursory” (brief and minimally informative) or “supportive” (long and relatively) informative with maximal rapport) preoperative interview. The following morning the Skin Conductance Anxiety Test (SCAT), a physiological measure of anxiety level, was carried out as part of the induction procedure on the non-premedicated patients. The random order determining the type of interview was known only to the anesthesiologist and no scoring was carried out until after the conclusion of all testing.The investigation showed that highly anxious patients had their anxiety level significantly reduced by both cursory and supportive interviews, while the relatively non-anxious patients had their anxiety levels significantly increased by cursory interviews. It was again demonstrated that the level of anxiety is a determinant of the amount of thiopental sodium required for induction.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1469-8986.1975.tb03059.x
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  • 2
    Electronic Resource
    Electronic Resource
    The Chemical Control of Preoperative Anxiety (1975)
    Oxford, UK : Blackwell Publishing Ltd
    Psychophysiology 12 (1975), S. 0 
    Details
    ISSN: 1469-8986
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine , Psychology
    Notes: The effect of a psychoactive chemical. diazepam, on reducing physiologically disruptive anxiety in young female patients about to undergo operation was investigated. In a double-blind study preoperative anxiety was measured by the Skin Conductance Anxiety Test (SCAT) after patients had been given either intravenous diazepam or placebo. It Was found that diazepam reduced the SCAT scores of the more anxious patients to the level of the scores of the less anxious ones, while the latter's scores were not significantly changed. The validity of the SCAT as an objective measure of anxiety was again confirmed and it was concluded that not only did diazepam differentially reduce anxiety levels in accordance with the degree of anxiety present, but that it also reduced to normal levels the excessive amount of thiopental sodium needed fort the induction of anxious patient.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1469-8986.1975.tb03058.x
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  • 3
    Electronic Resource
    Electronic Resource
    Trophic status of Iowa Lakes in relation to origin and glacial geology (1978)
    Springer
    Hydrobiologia 57 (1978), S. 267-273 
    Details
    ISSN: 1573-5117
    Keywords: Eutrophication ; Iowa lakes ; phosphorus ; water chemistry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Natural and artificial lakes in the most recently glaciated portions of Iowa have significantly greater total ion concentrations than those in other areas of the state. A similar distribution was found for total nitrogen concentrations. Lake origin seems of greater importance than location in determining trophic state. As a group, the artificial lakes have lower concentrations of total phosphorus, total chlorophyll, and greater Secchi disk transparency than do the natural lakes. This seems related to differences in the dynamics of the phosphorus cycles in these lake types.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00014580
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  • 4
    Electronic Resource
    Electronic Resource
    Tritium nuclear magnetic resonance spectroscopy. Part 11.Part 10: see Ref. 1. Further consideration of referencing, isotope effects and coupling constants: Preparation of [3H]tetramethylsilane (1979)
    Chichester : Wiley-Blackwell
    Organic Magnetic Resonance 12 (1979), S. 574-578 
    Details
    ISSN: 0030-4921
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Small discrepancies between 3H and 1H chemical shifts in organic compounds led to the finding that the ratio of Larmor frequencies ωT/ωH depends on the carbon-hydrogen bond hybridisation. The ‘best’ ratio for ghost referencing of 3H NMR spectra was then determined from measurements on purified partially tritiated TMS as 1.066639738±2 × 10-9. Some 3H isotope effects on chemical shifts are listed and the 3H isotope effect on the methylene geminal coupling constant in benzyl methyl sulphoxide is measured. Use of 2H in the measurement of 2J(HH) coupling constants has inherent disadvantages, overcome by use of 3H substitution.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mrc.1270121006
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