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  • Articles: DFG German National Licenses  (30)
  • 1980-1984  (20)
  • 1950-1954  (8)
  • 1900-1904  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Archives of gynecology and obstetrics 231 (1981), S. 51-56 
    ISSN: 1432-0711
    Keywords: Dizygotic twinning ; Implantation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Two ova implanted in one uterus were found at the autopsy of a 28-year-old woman. The ovulation age of both implantations has been estimated to be 10–12 days. The presence of two equally large corpora lutea, one in each ovary, indicates that the implanted ova originated from different ovaries. Thus, an “ovulatio biovarialis” seems to be the basis for the dizygotic twinning in this case. The case is believed to be the only documented example of a very early dizygotic, fraternal pregnancy in humans.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of the American Chemical Society 76 (1954), S. 5799-5801 
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 37 (1981), S. 1139-1141 
    ISSN: 1600-5740
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1438-3888
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Cercariae of the trematodeCryptocotyle concavum, which encyst in skin and/or kidney of sticklebacks and gobies, were studied in the Schlei Fjord (western Baltic Sea). Mean incidence of dermal cysts was 48 % inGasterosteus aculeatus and 37 % inPungitius pungitius. No cysts were found in the kidneys of sticklebacks. While 97 % ofPomatoschistus microps had encysted metacercariae in the kidneys, only 2 % had cysts in the skin.Pomatoschistus minutus, however, showed hardly any cyst infestation of either skin or kidney. InP. microps the intensity of infestation by metacercariae was frequently more than 50 cysts; in contrast, sticklebacks rarely exhibited more than 5 dermal cysts. Infested fish were larger than 10 mm in total length, the incidence rate increasing with growth. Parasitic infestation depends on ambient salinity:C. concavum was not found at salinities below 4 ‰. In contrast to the high incidence in fish, the first hosts — the snailsHydrobia stagnalis andH. neglecta — showed remarkably low infection rates (3 to 5 %). The findings reported are related to the distribution ofC. concavum, the mode of life of infested fish, the feeding habits of the final hosts and the infestation ofP. microps by other parasites. Evidently,P. microps represents an optimal second host forC. concavum.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The inclusive cross section for the production ofK s 0 mesons, Λ and $$\bar \Lambda$$ particles in proton-proton interactions at $$\sqrt s = 63$$ GeV is presented. The produced particles have been detected in the full phase space. Behaviour of the longitudinal and transversal depandences of the cross sections are discussed. The total production cross sections for s 0 mesons and Λ particles was determined to $$\sigma _{{\rm K}_S^0 } = (25.5 \pm 1.4)$$ mb andσ Λ =(7.8±1.2) mb respectively. A strong energy dependence of the production cross sections is observed.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Events with a single highp T charged particle were recorded with the Split-Field-Magnet Detector in proton-proton collisions at the CERN-ISR. In the jet opposite to the trigger region the densities of photons and reconstructed neutral pions were measured with a liquid argon shower counter. Scaled momentum distributions of these particles are given and compared with those of charged pions. The spectra of charged and neutral pions coincide. The production cross-section of neutrals in the away jet shows no dependence on the flavour of the trigger particle.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 28 (1950), S. 697-703 
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 30 (1952), S. 244-253 
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Zusammenfassung Die Untersuchung einiger präsklerotischer Veränderungen der Arterien führt zu der Auffassung, daß bei der Entstehung arteriosklerotischer Polster einer primären und unmittelbaren Ablagerung von Eiweißstoffen eine sehr wesentliche Bedeutung beizumessen ist. Die ausschließliche Bedeutung einer primären Lipoidablagerung in die unveränderte Intima als Ursache der Gefäßsklerose beim Menschen wird abgelehnt und die Arteriosklerose als ein polyätiologisches Geschehen betrachtet. Die Arterienwand kann im Laufe des Lebens den verschiedensten schädigenden Einwirkungen ausgesetzt sein (mechanischer, exogen-toxischer, infektiöser, autotoxischer, hormonaler, nervöser und psychischer art), die entweder unmittelbar ihre einzelnen Schichten (Endothel, Intima, Media, Adventitia) angreifen oder häufig erst über das übergeordnete Nervensystem zu einer verstärkten Inanspruchnahme der gesamten arteriellen Strombahn (Hochdruck) oder zu einer Überlastung seiner einzelnen Provinzen (z. B. der Coronararterien) führen. Die sich daraus ergebenden kreislaufmechanischen Momente wirken auf das Gewebe der Arterienwandung als ein mechanischer Reiz und stellen vielfach die unmittelbare Ursache der Arterienverhärtung dar. Ebenso wie die direkt das Gewebe der Arterienwandung angreifenden Schäden können auch die kreislaufmechanischen Momente die beschriebenen präsklerotischen Intimareaktionen hervorrufen, die allmählich in die eigentliche Sklerose ausklingen. Beim Menschen geht einer herdförmigen Sklerose in den meisten Fällen ein diffuser, bis jetzt wenig beachteter Umbau der Arterienwand voraus, der seinen einfachen zahlenmäßigen Ausdruck in einer außergewöhnlichen, mit dem Alter ständig fortschreitenden Gewichtszunahme findet. Die mit dem Alter fortschreitende diffuse Veränderung der Arterien beeinflußt offenbar weitgehend den normalen Ernährungsmechanismus der Arterienwand und bildet somit einen wichtigen prädisponierenden Faktor für die Entwicklung der herdförmigen Arteriosklerose.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 1432-1440
    Keywords: Ultrasound ; Computed tomography ; Endoscopic retrograde cholangiopancreatography ; Chronic pancreatitis ; Pancreatic tumor
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary From February to November 1981 the diagnostic relevance of ultrasound (US), computed tomography (CT) and endoscopic retrograde cholangiopancreatography (ERCP) was compared prospectively in 75 patients with suspected pancreatic disease. Final diagnosis was confirmed by autopsy, surgery, clinical course, and further laboratory data. Thus it was possible to exclude pancreatic disorders in 32 patients. By ERCP we diagnosed all tumors; sensitivity was 100%. Sensitivity of US and CT were 63% each. In five cases US made the false positive diagnosis” pancreatic malignant tumor” (specifity 93%), CT and ERCP in two cases (specifity 97% each). In chronic pancreatitis specifity of US and ERCP were 100% and specifity of CT was 98%. Sensitivity of ERCP amounted to 93%, CT and US revealed 74% and 52%, respectively. We conclude that ERCP is the best morphologic diagnostic tool in differentiating chronic pancreatitis from pancreatic carcinoma. US is a good screening method and CT reveals good diagnostic results in acute pancreatitis.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Virchows Archiv 318 (1950), S. 432-444 
    ISSN: 1432-2307
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Zusammenfassung Es wird über einen Gallereflux (Galleinflux) in den Ductus pancreaticus mit Ausfüllung seiner Äste durch stark gallig verfärbte Eiweiß-massen berichtet. Sogar in den kleinsten Ausführungsgängen von der Größe einer Arteriole fand sich galliger Inhalt. Als Ursache des außergewöhnlichen Galleinfluxes wird eine primäre entzündliche Schädigung des Ductus pancreaticus und seiner Äste vermutet. Der infektiös bedingte Schaden hätte neben einer Erschlaffung der Wandungen der Pankreasausführungsgänge wahrscheinlich auch eine vorübergehende „Motilitätsstörung“ im Bereich derVaterschen Papille hervorrufen können. Eine organische Verlegung derVaterschen Papille lag bei der Sektion nicht vor, es bestanden keine Cholelithiasis und keine Zeichen einer chronischen Cholecystitis. Trotz eines nicht ganz frischen und sehr massiven Galleinfluxes und einer sehr ausgebreiteten Sialangitis fanden sich am Pankreas nur kleinere umschriebene Parenchym- und Fettgewebsnekrosen vor.
    Type of Medium: Electronic Resource
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