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  • 1985-1989  (4)
  • 1987  (4)
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  • 1985-1989  (4)
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  • 1
    Electronic Resource
    Electronic Resource
    Administration of a terpene mixture inhibits cholesterol nucleation in bile from patients with cholesterol gallstones (1987)
    Springer
    Journal of molecular medicine 65 (1987), S. 458-462 
    Details
    ISSN: 1432-1440
    Keywords: Gallstones ; Bile ; Nucleation time ; Cholesterol crystals ; Terpenes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Patients with cholesterol gallstones referred to elective cholecystectomy were randomly assigned prior to operation to no treatment (n=14), treatment with one capsule t.d.s. (n=12) or two capsules t.d.s. (n=11) of a terpene mixture (Rowachol). Patients with pigment stones (n=7) or no biliary tract disease (n=5) were also studied. Lipid composition, presence of cholesterol monohydrate crystals, and nucleation time were determined in galbladder bile aspirated during surgery. Cholesterol saturation was similar in the different groups. Crystals were present in all cholesterol gallstone patients without treatment and in none of the controls. In one of the patients treated with one capsule and four of the patients treated with two capsules crystals could not be detected. The terpenes prolonged nucleation time from 2.8 to 5.8 days (one capsule;P〈0.05) and to 9.5 days (two capsules;P〈0.001), respectively; but nucleation did not occur in seven controls. Although the mechanism by which the terpene mixture inhibits the formation of cholesterol crystals in bile was not determined, the findings suggest that the terpene mixture might be a useful agent for a clinical trial to test whether they will prevent recurrence of gallstones after medical dissolution.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01712838
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Efficient and selective population of high vibrational levels by stimulated near resonance Raman scattering (1987)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 87 (1987), S. 5064-5076 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: We report the successful application of an optically pumped molecular beam laser for efficient and selective population transfer from v″=0 to high lying vibrational levels of Na2 in the electronic ground state. More than 50% of the molecules in a thermally populated rotational level of v″=0 can be transferred to a state v″(very-much-greater-than)1 with typically ≥75% of the molecules excited out of the initial state found in the predetermined end vibrational level and approximately ≤25% distributed over other levels according to the Franck–Condon factors. The applicability of this technique to the study of collision processes involving vibrationally highly excited levels is discussed. This work also contributes in general to a better understanding of optically pumped dimer lasers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.453674
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Rotational rainbow scattering with large Δ j: Energy dependence of the anisotropy of the Na2–Ne, Ar interaction potential (1987)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 86 (1987), S. 2680-2684 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Differential cross sections for rotational transitions in Na2–Ne, Ar collisions are measured up to very large Δj. It is shown that the energy dependent anisotropy ΔR(E) of the interaction potential can be determined from these data using simple classical relations of ΔR and the rainbow angle θR. Excellent agreement with ab initio data is demonstrated and underlines the usefulness of this concept.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.452070
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Supernumerary rotational rainbows in Na2–He, Ne, Ar scattering (1987)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 86 (1987), S. 2685-2688 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: We report the resolution of supernumerary rotational rainbows for rotationally inelastic ji → jf=0 transitions in Na2–He, Ne, Ar scattering. The relation of the angular position of the supernumerary maxima and the anisotropy ΔR of the interaction potential is established. The analysis yields the energy dependent anisotropy ΔR(E) in very good agreement with data from other sources.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.452071
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    Paper (German National Licenses)
    Fulltext
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