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  • 1
    Electronic Resource
    Electronic Resource
    8-methoxypsoralen and long ultraviolet effects on the rat lens: Experiments with high dosage (1982)
    Springer
    Graefe's archive for clinical and experimental ophthalmology 218 (1982), S. 193-199 
    Details
    ISSN: 1435-702X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The effect of systemic 8-methoxypsoralen (8-MOP; 100 mg/kg daily) and subsequent long ultraviolet irradiation (UVA; 300 mJ/cm2; peak: 365 nm) on albino and pigmented rat eyes was studied in a 3-dimensional experimental set-up. While 8-MOP and UVA did not cause any ocular pathology when administered alone, a combined application of the two factors caused reversible corneal opacities, and irreversible iris devascularisation and cataracts. The irreversible changes were seen only in the albinos and accompanied by a significant decrease in lens wet weight. Phosphorescence and EPR spectroscopy demonstrated the formation of an 8-MOP-protein photoadduct in the animals treated with both 8-MOP and UVA. The results of this study emphasize the necessity of shielding the eyes of patients on photochemotherapy with protective spectacles.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02150094
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  • 2
    Electronic Resource
    Electronic Resource
    Gammastrahlung vom Einfang thermischer Neutronen in Hg 199 (1965)
    Springer
    The European physical journal 185 (1965), S. 478-487 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract 103 gamma transitions in Hg 200 have been observed. 37 of them were fitted into a level scheme which comprises 17 states. The energy of the one-phonon vibrational stateI=2+ has been determined to be 367.970±0.020 keV, that of the two-phonon vibrational triplet 947.34±0.07 keV, 1029.37±0.05 keV and 1254.20±0.10 keV. Further levels have been found at energies of 1570.30±0.10 keV, 1571.7±0.6keV, 1594.3±0.4 keV, 1631.5±0.2 keV, 1641.5±0.3 keV, 1718.5±0.2 keV, 1730.8±0.2 keV, 1775.7±1.1 keV, 1842.9±0.8 keV, 1882.9±0.3 keV, 2062.6±0.5 keV and 2082.9±1.0 keV.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01381714
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  • 3
    Electronic Resource
    Electronic Resource
    Limits for axion emission in nuclear deexcitation processes (1985)
    Springer
    The European physical journal 321 (1985), S. 361-362 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Abstract The question of the emission of pseudoscalar bosons (axions) in nuclear deexcitation processes and their decay into two photons was studied with a rotatable multi detector system at the power reactor Biblis A. Assuming an axion mass of 250 keV and the standard model decay rate we obtain (1.0 ± 1.0) × 1O−10 for the ratio of the numbers of axions and Ml γ- ray transitions in the reactor core. This is ∼ 10−5 of the model prediction.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01493459
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  • 4
    Electronic Resource
    Electronic Resource
    Über den Einfluß einer Hydrocortisonbehandlung auf die Entwicklung von diabetischen Linsentrübungen bei Ratten (1976)
    Springer
    Graefe's archive for clinical and experimental ophthalmology 200 (1976), S. 211-222 
    Details
    ISSN: 1435-702X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung In 6 Gruppen von je 10 Wistar-Ratten wurde der Einfluß täglicher subkutaner Injektionen von Hydrocortison (HC, 10/mg/kg) auf die Entwicklung und den Verlauf diabetischer Katarakte nach Behandlung mit Streptozotocin (STR) untersucht. Nur in den 2 Gruppen mit höherer STR-Dosis (60 mg/ kg) entwickelten sich Katarakte. Dabei zeigte sich überraschenderweise, daß die zusätzlich mit HC behandelten Tiere niedrigere Blutzuckerspiegel, weniger ausgeprägte Glucosurien und diskretere diabetische Katarakte entwickelten als die nicht mit HC behandelten diabetischen Ratten. Da mit der HC-Behandlung vor der STR-Injektion begonnen worden war, wird angenommen, daß die Vorbehandlung mit HC zu einem Schutz der B-Zellen des Pankreas vor STR und zur Ausbildung eines leichteren Diabetes geführt hatte.
    Notes: Summary The influence of daily subcutaneous cortisol injections (10 mg/kg) on the development of cataracts in streptozotocine (STR) diabetes was studied in 6 groups of Wistar rats (n=10). Cataracts occurred only in the two groups subjected to high STR doses (60 mg/kg). We were astonished to find that in cortisol-treated diabetic animals there were lower blood glucose levels, fewer cases of glucosuria, and less pronounced cataracts than in rats treated with STR only. As STR had been administered after the start of cortisol therapy, it is assumed that the steroid had caused a protection of pancreatic B cells against STR and the onset of a less severe diabetes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01028536
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  • 5
    Electronic Resource
    Electronic Resource
    Study of the level structure of239U using the thermal neutron capture reaction (1978)
    Springer
    The European physical journal 286 (1978), S. 31-43 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract For the investigation of vibrational states in odd A nuclei we have studied the level structure of239U by the238U (n thermal,γ) reaction. Various complementary measurement techniques as curved-crystal-, anti-Compton-,γ-γ coincidence- and conversion electron spectroscopy have been applied. The resulting data have been used to establish the deexcitation scheme of239U up to ∼1.3 MeV and to make spin assignments. Most of the levels are interpreted in terms of the Nilsson model. The data also indicate the presence of the Nilsson states ¦501↺¦ and ¦750¦. Three members of theΒ-vibrational band built on the ¦631↺¦ state and one member of theΒ-vibration built on the ¦622↑¦ ground state have been identified through transitions with strongE0 admixtures. The octupole vibrational state built on the ¦631↺¦ band is proposed at 815 keV.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01434611
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  • 6
    Electronic Resource
    Electronic Resource
    Study of the level structures of80Br and82Br using the thermal neutron capture reaction (1978)
    Springer
    The European physical journal 286 (1978), S. 107-119 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The level structures of the doubly odd nuclei80Br and82Br have been studied by means of the thermal neutron capture reactions79Br(n, γ)80Br and81Br(n, γ)82Br. Captureγ-ray spectra from isotopically separated targets have been measured in the approximate energy intervals 30〈E γ(keV)〈1100 with three bent crystal spectrometers installed at the Grenoble high-flux reactor. Measurements with Ge(Li) detectors covered the energy range 0.1〈E(MeV)〈8. Gamma-gamma coincidences have been taken at the research reactor FRJ-2 (Dido) at the Kernforschungsanlage Jülich. The conversion-electron spectra of80Br and82Br from thermal neutron capture have been measured with the beta-spectrometer at the Grenoble high-flux reactor. Using all these data the level schemes of80Br and82Br are proposed up to 1.5 MeV. Spin assignments for the excited states below 800 keV are proposed. The level schemes are discussed in terms of shell model configurations and, as an alternative description, in terms of the Nilsson model.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01434619
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  • 7
    Electronic Resource
    Electronic Resource
    Search for light penetrating bosons with the use of a rotatable detector arrangement at a nuclear reactor (1983)
    Springer
    The European physical journal 313 (1983), S. 239-240 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The search for the two-photon decay of light penetrating bosons (axions or others), produced in a nuclear reactor, was supplemented by measurements with a rotatable set-up at the Jülich 10 MW research reactor FRJ-1. Measurements were performed in “effect” and “background” positions, the latter not allowing the simultaneous detection of both photons due to decay kinematics. Preliminary measurements, carried out at reactor ON condition only, show no positive effect.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01417232
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  • 8
    Electronic Resource
    Electronic Resource
    The nuclear structure of198Au from the reaction197Au(n, γ)198Au (1975)
    Springer
    The European physical journal 272 (1975), S. 175-187 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Precise energies and intensities of about 450γ-rays of the197Au(n, γ)198Au reaction have been investigated in the energy range from 30 keV to 1 MeV with a bentcrystal spectrometer. Prompt and delayedγ-γ coincidences have been studied with Ge(Li) detectors. A half-life of 124±4 ns has been measured for the state at 312.036 keV, which is found to decay to the ground state through the cascade 97.195–214.841 keV. A new level scheme based on these results has been constructed which contains 160 transitions. Spin and parity assignments have been made for most of the levels.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01408145
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  • 9
    Electronic Resource
    Electronic Resource
    Fission products from the197Au(d,f) reaction (1980)
    Springer
    The European physical journal 295 (1980), S. 377-383 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Cumulative and independent fission product yields of the reaction197Au(d,f) were determined at a beam energy of 80 MeV at the Jülich isochronous cyclotron. Off-beamγ-ray measurements applying a catcher foil technique and chemical separation, and in inbeam kinetic energy measurements of fission products were performed. The complete yield distribution of post neutron emission fission fragments is represented by a single function, consisting of the product of two Gaussians. The mass distribution is characterized by the widthσ A =12.5amu. The width of theZ-distribution for eachA-chain is given byσ Z =0.63amu.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01412951
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  • 10
    Electronic Resource
    Electronic Resource
    Nuclear levels in152Eu (1978)
    Springer
    The European physical journal 286 (1978), S. 341-380 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The transitional nucleus152Eu has been studied using the (n, e), (n, γ), (n res,γ), (n, γγ), (d, p), (d, t) and (p, d) reactions. The experiments have been performed at nine different laboratories. A model independent level scheme was established including 95 levels below 510 keV and nearly 900 transitions by combination of low energy transitions and reaction data. More than 20 additional levels result from gamma rays and/or charged particle reactions. The level scheme is interpreted in terms of the Nilsson model indicating that152Eu is a deformed nucleus. Seven rotational bands and Nilsson configurations are established. An additional 27 rotational bands are tentatively or speculatively assugned. Gallagher-Moszkowski splittings are discussed. The neutron binding energy was determined as 6305.2±0.5 keV. The energy of the 9.3 h 0− isomer is 45.599 keV. The lifetimes of four levels were measured. Nuclear Reactions151Eu(n,γ),E n =thermal and resonance; measuredE γ ,I γ ,E c.e.,I c.e.,γγ Coinc.,γγΔt coinc.;151Eu(d, p),E=12MeV and 14MeV;153Eu(d, t),E=12MeV;153Eu(p, d),E =18MeV; deduced level scheme of152Eu,J, π, T 1/2,cc, Nilsson configurations. Magnetic electron spectrometer, curved crystal spectrometer, Ge(Li) and Si(Li) detectors, magnetic spectrographs. Enriched targets.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01408894
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