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  • Articles: DFG German National Licenses  (46)
  • 1975-1979  (23)
  • 1970-1974  (21)
  • 1930-1934  (2)
  • 11
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 266 (1977), S. 243-243 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A primary goal was to eliminate any unconsciously applied human bias which could affect results. To this end, I removed myself from direct participation in the data reduction beginning in 1972. Mr Michael Lee developed programs for a magnetic tape and computer system of data analysis. A number of ...
    Type of Medium: Electronic Resource
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  • 12
    Electronic Resource
    Electronic Resource
    Springer
    Rheologica acta 14 (1975), S. 1098-1109 
    ISSN: 1435-1528
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Zusammenfassung Es wird eine englische Übersetzung der 1972 von der Französischen Rheologischen Gesellschaft veröffentlichten rheologischen Nomenklatur gegeben.
    Notes: Summary Translations are given of definitions of terms in Rheology published in 1972 by the French Society of Rheology.
    Type of Medium: Electronic Resource
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  • 13
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 252 (1972), S. 428-434 
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Description / Table of Contents: Zusammenfassung Das Spektrum eines gepulsten Neon-Superstrahlers bei λ=6143 Å wurde mit einem Fabry-Perot-Interferometer untersucht. Die Fabry-Perot-Aufnahmen zeigten eine Aufspaltung der Superstrahlungslinie in mehrere Komponenten, bei hohen Entladungsstromstärken im Laser bis zu 6 Linien. Diese Komponenten wurden durch eine Aufspaltung der Laserniveaus durch Zeeman-Effekt infolge des Eigenmagnetfeldes des Entladungsstromes erklärt und berechnet. Es zeigt sich befriedigende Übereinstimmung zwischen experimentellen und theoretischen Ergebnissen.
    Notes: Abstract The spectrum of neon superradiance at λ=6143 Å is calculated with regard to the Zeemansplitting induced by the magnetic field of the excitation pulse. Good agreement was found between experimental and theoretical results.
    Type of Medium: Electronic Resource
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  • 14
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The production of superheavy elements in binary reactions of the type208Pb (136Xe, X) Y was investigated atE c.m.=470 MeV. The experiment was designed to search for delayed fission products from elements withZ between 108 and 116 and fission lifetimes ofΤ≳10−12 s. No fission events were observed the upper limit for the formation cross section being 1.2 Μbarn.
    Type of Medium: Electronic Resource
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  • 15
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 34 (1978), S. 679-682 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary From the roots ofCroton flavens L., 3 highly irritant and tumor promoting Croton factorsF 1–F 3 and the corresponding 3 cryptic Croton factorsF′1–F′3 were isolated and characterized as novel esters of 16-hydroxy- and 4-deoxy-16-hydroxyphorbol, respectively. These findings suggest that tumor promoters of the phorbol ester type, ingested through the widespread and frequent use ofCroton flavens according to local habits, may be causally related to the well recognized high rate of esophageal cancer on Curaçao.
    Type of Medium: Electronic Resource
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  • 16
    Electronic Resource
    Electronic Resource
    Springer
    Marine biology 6 (1970), S. 12-17 
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Ecological surveys involving over 500 man-days between 1966 and 1969 indicate that the coral-eating sea star, Acanthaster planci, is a normal component of the coral reef community throughout the tropical Pacific, and that its abundance in the past has probably been underestimated. The sea star is not uncommon in certain environments, particularly back-reef and lagoon slopes. Sheltered, inner reefs are generally preferred over less protected reefs. Recently reported “population explosions” of A. planci at Guam and on the Great Barrier Reef of Australia appear to be isolated, widely-separated, local infestations of unknown cause. The infestation on the Great Barrier Reef has not spread beyond the area off Cairns and Innisfail. Approximately 40 of the more than 1000 reefs comprising the Great Barrier Reef complex have been infested heavily.
    Type of Medium: Electronic Resource
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  • 17
    Electronic Resource
    Electronic Resource
    Springer
    Archive for rational mechanics and analysis 48 (1972), S. 205-212 
    ISSN: 1432-0673
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Physics
    Notes: Abstract The stability of a two-dimensional continuum consisting of rigid solids embedded in an elastic homogeneous medium with a fixed boundary is investigated. With each solid is associated the scalar $$\sigma = \frac{1}{S}\sum\limits_\alpha {\vec F_\alpha } \user1{ }.\user1{ }\overrightarrow {0M} _\alpha$$ where $$\vec F_\alpha$$ are balanced dead loads acting at points M α of the solid, and where S is the area of the surface of the solid. If μ is the shear modulus of the elastic medium, it is shown that (i) the inequality σ+4μ〉0, when it applies to each solid, is a sufficient condition for stability of the continuum; (ii) the inequality σ+4μ≧0 is a necessary condition for stability of a single circular solid embedded in an infinite elastic medium.
    Type of Medium: Electronic Resource
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  • 18
    Electronic Resource
    Electronic Resource
    Springer
    Archives of gynecology and obstetrics 210 (1971), S. 303-320 
    ISSN: 1432-0711
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Anhand von 8 Fällen mit Endometriumveränderungen bei jungen Frauen, die aufgrund der histologischen Befunde ohne Kenntnis des Alters der Patientin als Endometriumcarcinom eingestuft werden müßten, wird die Problematik in Diagnose und Therapie aufgezeigt. Sehr ähnliche morphologische Befunde gewinnen in Verbindung mit dem Alter der Patientin eine ganz unterschiedliche Aussagekraft hinsichtlich des weiteren biologischen Verhaltens der Veränderungen. Klinisch war 3mal eine einseitige Ovariektomie vorausgegangen und 3mal eine jahrelange Oestrogentherapie. Nur 3mal fand sich bei der Uterusexstirpation eine Invasion in das Myometrium als Zeichen echter Malignität. Die übrigen 5 Patientinnen waren rezidivfrei, und zwar 3 trotz rein konservativer Behandlung; 2mal war nach Uterusexstirpation die adenomatöse Wucherung auf das Endometrium beschränkt. Verschiedene histologische Kriterien, die an einem größeren Zahlenmaterial auf ihre Aussagefähigkeit überprüft werden müssen, lassen möglicherweise doch auf eine noch bestehende Reversibilität der Veränderungen sehließen. Durch subtile histologische Differenzierung wird man somit sehr wahrscheinlich die größere Zahl der jugendlichen „Endometriumcarcinome“ noch als reversible adenomatöse Hyperplasien einstufen und eine konservative Therapie bei diesen jungen Frauen vertreten können. Angesichts der Seltenheit dieser Fälle wird angeregt, diese zentral zu sammeln, um an einem größeren Untersuchungsgut gesicherte Aussagen machen zu können.
    Notes: Summary Problems in the diagnosis and therapy of endometrial tumors in eight young women are discussed. Without knowledge of the patients' age the tumors from their histology would have to be classified as endometrial carcinomas. Thus, it is apparent that these tumors, although they may resemble one another, have quite different biological behaviours and consequently prognoses, depending on the age of the patient. Three patients had had a unilateral ovariectomy; three had received prolonged therapy with estrogen. In only three patients did the tumor at hysterectomy reveal its malignant nature by having invaded the myometrium. The remaining five patients never showed recurrence of the tumor; treatment in three of these merely consisted of curettage. In two patients the hysterectomy specimen proved the adenomatous overgrowth was limited to the endometrium. Various histological criteria, which must be checked for reliability in a large series of cases, seem to indicate that the tumors are reversible. Consequently, these subtile histological characteristics enable one to classify the major portion of juvenile “endometrial carcinomas” as reversible adenomatous hyperplasias, justifying conservative therapy for these young women. Because these tumors are rare, we suggest that they be collected at a central registry, in order to learn more about their biological behaviour and their prognosis.
    Type of Medium: Electronic Resource
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  • 19
    Electronic Resource
    Electronic Resource
    Springer
    Bulletin of environmental contamination and toxicology 23 (1979), S. 412-417 
    ISSN: 1432-0800
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Type of Medium: Electronic Resource
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  • 20
    Electronic Resource
    Electronic Resource
    Springer
    Human genetics 〈Berlin〉 29 (1975), S. 171-175 
    ISSN: 1432-1203
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The distribution of copper among the organs of an aborted, male foetus, expected to develop Menkes' syndrome, was entirely different from the distribution in 4 normal foetuses. Copper concentrations determined by neutron activation analysis showed a considerably reduced content in the liver, but increased concentrations in the other organs analysed; total foetal copper was normal.
    Type of Medium: Electronic Resource
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