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  • 1
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Allergy 37 (1982), S. 0 
    ISSN: 1398-9995
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: The effect of immunotherapy by intranasal insulflation a of Lolium perenne allergens modified with glutaraldehyde (Glu-Rye) was tested by a stratified placebo-controlled trial in 16 adult subjects with hay fever. The purpose of this pilot study was to determine whether the treatment could reduce nasal sensitivity to allergen in provocation tests. Modification of the allergen was shown to include polymerization and reduced allergenicity, but retained immunogenicity. Nasal sensitivity to unmodified L. perenne allergens was measured by threshold-type quantitative nasal challenge and posterior rhinometry for measurement of nasal airway resistance. In challenge tests after a 10-week course of intranasal preseasonal treatment with Glu-Rye, nasal sensitivity was reduced, but this effect was not maintained when testing was repeated 9 months after treatment. Post-seasonal serum levels of IgE antibodies to L. perenne were also not significantly affected by the treatment.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Springer
    Neuroradiology 26 (1984), S. 137-140 
    ISSN: 1432-1920
    Schlagwort(e): Microangiography ; cerebral veins ; venous angiomas
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary Microangiographic serial cuts were performed in 20 Sprague-Dawley rats for a systematic study of the normal anatomy of the cerebral veins. The draining pathways of the cerebral and cerebellar cortex, basal ganglia, hypothalamus, hippocampus and the midbrain are described and discussed with regard to their different functions.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Springer
    Archives of orthopaedic and trauma surgery 97 (1980), S. 43-49 
    ISSN: 1434-3916
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Beschreibung / Inhaltsverzeichnis: Zusammenfassung Mit endoskopischen und computer-tomographischen Methoden wurden die räumlichen Verhältnisse im Bereich des atlanto-occipitalen Überganges bis in den unteren Zervikalabschnitt untersucht. Dabei wurden die Auswirkungen von Ventro- und Dorsalflexion auf die Weite des Epi- und Subduralraumes verfolgt and deren Bedeutung für die Lagerung HWS-Verletzter diskutiert. Als raumschaffenste HWS-Stellung ergab sich die leichte Ventroflektion, die daher als optimale Lagerung bei raumfordernden Veränderungen im HWS-Bereich angesehen wird.
    Notizen: Summary The spatial situation of the cervical spine has been studied under endoscopic and CT-scanning conditions. The effects of ventro- and dorsoflexial movements upon the width of the epidural and subdural space have been noted, and their significance concerning the positioning of the injureds cervical spine has been discussed. The most spacegiving position of the cervical spine is a slight ventroflexion, which is therefore considered the best cervical spine position in case of space requiring alterations of the cervical spine.
    Materialart: Digitale Medien
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  • 4
    ISSN: 1434-601X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract Using56Co sources, a 3.254 MeV level in238U was photoexcited by aγ-line emitted in the decay of the 4.100 MeV level in56Fe. 10γ-transitions deexciting this 3.254 MeV level were identified. Spin and parity were determined to be 1−. By moving the56Co source in a high speed centrifuge the profile of the 3.254 MeV emission line was investigated. By applying a new variety of Doppler shift analysis a lifetime ofτ Fe=55±25fs was obtained for the 4.100 MeV level in56Fe. The cross section for nuclear resonance fluorescence yields a lifetime ofτ U =0.33±0.12 ps for the 3.254 MeV level in238U.
    Materialart: Digitale Medien
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  • 5
    ISSN: 1434-601X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract Using gaseous60CoI2 sources, the velocity distribution of60Ni nuclei afterβ-decay of60Co has been measured by the nuclear-resonance-fluorescence coincidence (NRFC) method. By comparison with model calculations, information is obtained on the rearrangement of electrons on the molecule as a consequence of the change of nuclear charge. In 42% of the rearrangement processes bound (NiI2)+ or (NiI)+ molecule ions are formed. In 24% the molecule is singly charged but with the bonds between Ni and its molecular partners ruptured. In 34% the charging of more than one molecular partner leads to Coulomb explosion of the molecule. The probability of finding more than one charge on the molecule is larger by a factor of 2 as compared to the probability for electron shake-off on an isolated Ni atom.
    Materialart: Digitale Medien
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  • 6
    Digitale Medien
    Digitale Medien
    Springer
    The European physical journal 301 (1981), S. 101-107 
    ISSN: 1434-601X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract Nuclear Resonance Fluorescence spectra contain information on the slowing-down behaviour of recoiling atoms in the energy range pertinent to the specific reaction. On the basis of conventional transport theory, measured spectra for arsenic atoms with energies ≲15 eV slowing down in helium are analysed. The assumption of continuous slowing down turns out to be well justified, and the thermal motion of the gas atoms is shown to influence the effective stopping power only slightly. Somewhat surprising in view of uncertainties concerning the charge state of the recoiling atoms, theoretical predictions based on Lenz-Jensen elastic interaction agree well with the measured spectra. At present, the experimental data do not allow direct inversion, but the calculated spectra are shown to depend sensitively on the stopping-power input.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 7
    Digitale Medien
    Digitale Medien
    Springer
    The European physical journal 301 (1981), S. 75-79 
    ISSN: 1434-601X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract A resonance fluorescence self-absorption experiment has been carried out for the 1,434 MeV first excited state in52Cr, using gaseous52MnI2 as source for the exciting gamma radiation. TheB(E2,0 1 + →2 1 + )=(687±13)e 2 fm4 is in agreement with the most recent Coulomb excitation and inelastic electron scattering experiments yielding (660±30)e 2 fm4 and (634±39)e 2 fm4, respectively, and disagrees with former electron scattering experiments.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 8
    Digitale Medien
    Digitale Medien
    Springer
    European archives of psychiatry and clinical neuroscience 231 (1982), S. 171-185 
    ISSN: 1433-8491
    Schlagwort(e): Computerized tomography ; Intracerebral haematomas ; Differential diagnosis ; Resorption of haematomas ; Computertomographie ; Intracerebrale Hämatome ; Differentialdiagnose ; Hämatom-Resorption
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Beschreibung / Inhaltsverzeichnis: Zusammenfassung Bei 73 Patienten mit spontanen und traumatischen intracerebralen Blutungen werden durch CT-Verlaufsuntersuchungen Gesetzmäßigkeiten der Hämatomresorption aufgezeigt. Nach computertomographischen Beurteilungskriterien ist die Resorption aller intracerebraler Hämatome weitgehend unabhängig von dem Maximaldurchmesser bis zum Ende der 7. Woche ohne Ausnahme abgeschlossen. Lediglich kleinere Blutungen bis zu 2cm Durchmesser wiesen auch schnellere Resorptionsverläufe auf. Die pathophysiologischen Grundlagen des Resorptionsvorganges bei größeren Blutungen sowie die möglichen Ursachen für die schnellere Resorption im Marklager- und Stammgangliengebiet werden besprochen. Ein Vergleich der CT-Merkmale von intracerebralen Blutungen unterschiedlicher Ätiologie zeigt, daß diese keine eindeutige differentialdiagnostische Aussagekraft für die Klärung der Blutungsursache, jedoch prognostische Bedeutung besitzen.
    Notizen: Summary The CT findings of 73 patients with spontaneous and traumatic intracerebral haematomas are described. The course and pattern of resorption of the bleeding is evaluated. It is shown that the resorption of all haematomas is terminated by the end of week 7 independent of their maximum diameter. Only smaller haemorrhage of less than 2cm can be resorbed in a shorter time. Moreover, the underlying pathophysiologic mechanisms of faster resorption of bleeding located in the basal ganglia and the neighbouring white matter are discussed. The CT findings revealed no clear-cut characteristics for differential diagnosis of the etiology of haematomas, but proved very helpful in defining the prognosis.
    Materialart: Digitale Medien
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  • 9
    ISSN: 1434-6036
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract The time dependence of the recoil velocity of a140Ce nucleus in a La and a LaF3 lattice after β emission is studied via the Doppler shift of the 1.596 MeV γ transition in140Ce. Evidence is obtained that the nucleus does not leave the lattice site even at a recoil energy of about 20 eV but carries out a damped oscillation. The quantitative comparison of the recoil velocity with the predictions of lattice theory leads to partial agreement.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 10
    ISSN: 1434-601X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract Using monochromatized synchrotron radiation with variable photon energyE i =43.01...43.35 keV, Resonant Raman Scattering (RRS) by Neodymium atoms (K-shell binding energyB 1s=43.57 keV) was investigated. For the first time the fine structure splitting in a K-L-RRS spectrum due to the energy difference of the L2 and L3 subshells was observed. In addition, the first observation of K-N-RRS in the spectrum of scattered photons is reported. The measured double-differential RRS cross sections are, on an absolute scale, in very good agreement with those calculated in the non-relativistic dipole approximation, modified by relativistic corrections.
    Materialart: Digitale Medien
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