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  • 1
    Electronic Resource
    Electronic Resource
    Diode current detection of extended x-ray absorption fine structure in gallium arsenide (1985)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 58 (1985), S. 811-815 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Measurement of diode photocurrent represents a new method for obtaining extended x-ray absorption fine structure (EXAFS) information specific to the junction region of a diode. EXAFS measurements at Ga and As K edges of an aluminum-on-GaAs Schottky diode have been used to demonstrate this new technique. The spectra observed in the diode current arise mainly from x-ray absorption events within 2 μm of the diode junction, i.e., within a minority carrier diffusion length of the approximately 600-A(ring)-wide depletion region. The diode current EXAFS are consistent with EXAFS obtained from fluorescence measurements.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.336149
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Zur Genese atraumatischer Leberblutungen (1985)
    Springer
    International journal of legal medicine 95 (1985), S. 145-152 
    Details
    ISSN: 1437-1596
    Keywords: Hepatic hemorrhage, atraumatic genesis ; Peliosis hepatis ; Leberblutungen, atraumatische Genese ; Peliosis hepatis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Law
    Description / Table of Contents: Zusammenfassung Leberblutungen nach spitz-scharfer oder stumpfer Oberbauchtraumatisation sind keine Seltenheit. Von besonderem Interesse sind jedoch atraumatische Leberblutungen, wenn bei strafrechtlichen Ermittlungen tödliche Leberblutungen als einzige oder konkurrierende Todesursache diskutiert werden müssen. Mit Hilfe der Ergebnisse von Tierversuchen an Kaninchen konnte gezeigt werden, daß unter spezifischen enzymatischen Stoffwechselbedingungen innerhalb weniger Tage Blutungen einzig in der Leber entstehen. Atraumatische Leberblutungen mit Rhexis-Kavernen können den Folgezustand einer Traumatisation vortäuschen und, unter forensischen Aspekten falsch interpretiert, Analß für ein Fehlurteil sein.
    Notes: Summary Hepatic hemorrhages are not unusual after sharp or blunt abdominal traumata. They are of particular interest when deadly hepatic hemorrhages are under discussion as the single or contributory cause of death in forensic investigations, for instance after reanimation or acts of violence. The test results in rabbits demonstrate that artificial and specific enzyme-assimilation conditions can cause atraumatic hepatic hemorrhages in only a few days. With and without concomitant injuries, liver bleeding may have an atraumatic genesis. An additional human case report shows the possibility of confusion with atraumatic rhexis hemorrhage in the liver.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00201071
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Zur biomechanischen Fragilität des Säuglingsschädels (1985)
    Springer
    International journal of legal medicine 94 (1985), S. 93-101 
    Details
    ISSN: 1437-1596
    Keywords: Infant skull fractures ; Biomechanical fragility ; Battered child syndrome ; Schädelfraktur, Säuglinge ; Biomechanische Fragilität ; Kindesmißhandlung
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Law
    Description / Table of Contents: Zusammenfassung In Fortführung früherer experimenteller, postmortaler Schädelbruchverletzungen von Säuglingen nach Stürzen aus 82 cm Höhe wurden weitere 35 Sturzversuche durchgeführt, so daß insgesamt Ergebnisse von 50 Fällen vorliegen. Bei je 5 Sturzversuchen auf harten Untergrund — (Steinkachelboden, Teppichboden und Linol-Schaumstoff) — waren in allen Fällen Kalottenfrakturen entstanden. Bei den 35 Sturzvorgängen auf weich gepolsterten Untergrund — (Schaumstoffmatte, Kamelhaardecke) — traten bei 5 Fällen gleichartige Frakturen auf, die im Os parietale lokalisiert waren. In dieser Region besteht bis zum späten Säuglingsalter wegen primärer Einschichtigkeit der Ossifikation, noch fehlender Diploe und Vaskularisation eine besondere Prädilektionszone für Bruchverletzungen nach stumpfer Gewalt, insbesondere bei Sturz auf den Kopf. Diese Untersuchungsergebnisse haben somit bestätigt, daß nach angeblichen Sturzvorgängen aus Wickeltischhöhe die Annahme der Unversehrtheit des Säuglingsschädels nicht berechtig ist.
    Notes: Summary Following previous experiments on postmortem skull fractures of infants, falls from 82-cm heights onto stone (A), carpet (B) and foam-backed linoleum (C), 35 further falling tests were carried out onto softly cushioned ground. In 10 cases a 2-cm thick foam rubber mat (D) was chosen and in 25 further cases a double-folded (8-cm-thick) camel hair blanket (E). Hence the results of altogether 50 tests could be evaluated. In test groups A–C on a relatively hard surface, skull fractures of the parietale were observed in every case; in test group D this fracture was seen in one case and in test group E in four cases. Measurements along the fracture fissures showed bone thicknesses of 0.1–0.4 mm. The fracture injuries originated in paper-thin single-layer bone areas without diploe, which can also be considered the preferred regions for skull fractures of older infants following falls from low heights. These results indicate that it is no longer possible to assume that the skull of infants is not damaged after falls from table height.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00198677
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  • 4
    Electronic Resource
    Electronic Resource
    A chromatophore system in the hermatypic, deep-water coral Leptoseris fragilis (Anthozoa: Hexacorallia) (1985)
    Springer
    Marine biology 89 (1985), S. 143-147 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Ultrastructural evidence is presented of a chromatophoresystem in the zooxanthellae containing hermatypic, deep-water coral Leptoseris fragilis (Milne Edwards and Haime). It consists of multilobed cells which mainly occupy the intercellular space of the oral gastrodermis. The cellular processes are filled with electron-dense granules up to 1-μm-long and 0.5-μm-wide. Within the cytoplasm an elaborate system of microtubules is established. The ramifications of the pigment cells, containing the pigment granules, form a dense and nearly continuous layer close to the overlying zooxanthellae. It is speculated that host pigments may transform the violet portion of the incident light into longer wavelengths, thus increasing the photosynthetic efficiency of the zooxanthellae.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00392885
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  • 5
    Electronic Resource
    Electronic Resource
    Determination of thiamine in human plasma and its pharmacokinetics (1985)
    Springer
    European journal of clinical pharmacology 28 (1985), S. 213-219 
    Details
    ISSN: 1432-1041
    Keywords: thiamine ; plasma level ; pharmacokinetics ; nonlinear renal elimination ; assay for clinical use
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary A sensitive assay for thiamine suitable for clinical use has been developed. It is based on precolumn oxidation of thiamine to thiochrome followed by HPLC-separation and fluorescence detection. The assay is applicable to various biological materials, including human plasma. The minimum amount detectable was 5 fmol, minimum plasma concentration 0.5 nmol/l and minimum sample volume 0.3 ml plasma. Each chromatographic run took 3 min. Inter- and intra-assay relative standard deviations (RSD) were 8.3% and 6.3%, respectively, at a stock plasma concentration of 10.8 nmol/l. At 38.8 nmol/l, interassay RSD was reduced to 3.4%. The recovery of 5 nmol/l added thiamine was 102 (SD±17)%, that of 30 nmol/l was 94±5%. Plasma levels in 91 volunteers ranged from 6.6 to 43 nmol/l, showing a log normal distribution with a median of 11.6 nmol/l. Thiamine kinetics were studied in plasma and urine from 8 men after intravenous and oral doses of 50, 100 and 200 mg thiamine hydrochloride. In all individuals, nonlinear renal elimination kinetics were demonstrated by plotting the fractional amount of thiamine excreted unchanged in urine against the corresponding area under the plasma concentration — time curve.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00609694
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  • 6
    Electronic Resource
    Electronic Resource
    Familiäre Tumorkrankheiten. Erste Ergebnisse einer Erhebung über ihr Vorkommen in Basel (1985)
    Springer
    Sozial- und Präventivmedizin 30 (1985), S. 28-32 
    Details
    ISSN: 1420-911X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Les premiers résultats d'une étude systématique bâloise sur la parenté de plus de 600 malades cancéreux permettent de déduire, que parmi les tumeurs malignes de tous les organes, il existe certaines formes à l'origine desquelles la prédisposition joue un grand rôle. Ceci est illustré par les examples du cancer du sein, du cancer colorectal, du cancer de l'estomac et des maladies lymphoprolifératives. La recherche de la prédisposition à des maladies cancéreuses présente un intérêt pratique en permettant de protéger les personnes à risque des suites graves d'une maladie cancéreuse. D'autre part, elle présente un intérêt scientifique, car la caractérisation des gènes contribuant à la formation de certaines tumeurs permet des observations fondamentales sur la pathogénèse de ces maladies peuvent être donnés.
    Abstract: Summary The initial results of a systematic study conducted in Basel on the existence of relatives with cancer in the families of more than 600 tumour patients indicate that neoplasm of all organs have forms in whose etiology genetic predisposition is an important factor. This is illustrated by the examples of mammary carcinoma, colorectal carcinoma, gastric carcinoma and lymphoproliferative diseases. Research into genetic predisposition to cancer is of practical value in order to protect persons at risk from the serious consequences of malignant tumors, and also of scientific interest because the characterisation of certain tumours can provide a fundamental insight into the pathogenesis of these diseases.
    Notes: Zusammenfassung Erste Ergebnisse einer in Basel systematisch durchgeführten Studie über das Vorkommen von Verwandten mit Tumorkrankheiten in Familien von über 600 Tumorpatienten lassen schliessen, dass es von den bösartigen Neubildungen aller Organe Formen gibt, bei deren Entstehung die Veranlagung eine wichtige Rolle spielt. Dies wird am Beispiel des Mammakarzinoms, der Kolorektalkarzinome, des Magenkarzinoms und von lymphoproliferativen Erkrankungen illustriert. Die Erforschung der Veranlagung für Tumorkrankheiten ist von praktischer Bedeutung, um Risikopersonen von den schweren Folgen einer Tumorkrankheit schützen zu können, und von wissenschaftlichem Interesse, da durch die Charakterisierung der Gene, die zur Entstehung bestimmter Tumoren beitragen, grundlegende Einblicke in die Pathogenese dieser Leiden gewonnen werden können.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02075725
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