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  • 1980-1984  (3)
Material
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Histopathology 5 (1981), S. 0 
    ISSN: 1365-2559
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Eleven cases of primary pancreatic adenocarcinomas have been investigated histochemically, immunohistochemically and with electron-microscopy. Endocrine-paracrine (EP) cells were present in six of these tumours. In one case numerous 5HT-enterochromaffin cells (EC) of the intestinal type and a few somatostatin immunoreactive D cells were found. Two cases contained insulin-immunoreactive cells and another case displayed glucagon-IR elements. In the remaining two cases argyrophilic cells were present. These findings demonstrate that polypeptide hormone or amine production is not restricted to islet cell tumours. It is suggested that both endocrine and exocrine components of the tumours studied might have derived from a common precursor.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Il nuovo cimento della Società Italiana di Fisica 1 (1982), S. 751-777 
    ISSN: 0392-6737
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Description / Table of Contents: Riassunto Sono stati misurati gli spettri di termoriflettanza tra 3 e 9 eV per una serie di cristalli misti GaSxSe1−x. I campioni erano lastrine monocristalline cresciute dalla fase vapore con il metodo del trasporto chimico. Le misure sono state effettuate con radiazione non polarizzata propagantesi all'incirca lungo l'asse di anisotropia dei cristalli, mentre la modulazione in temperatura è stata eseguita attorno a 65 K. Molte strutture degli spettri di riflettività sono state analizzate nella loro dipendenza dalla concentrazione di zolfo nei cristalli misti. Su questa base si è data una approfondita discussion degli spettri ottici di GaS e GaSe oltre la soglia fondamentale, e si sono ottenute nuove informazioni riguardanti i livelli elettronici di energia sia per questi composti che per l'InSe, che ha struttura cristallina analoga.
    Abstract: Резюме Были измерены спектры термоотражения в области между 3 и 9 эВ для ряда смешанных GaS x Se x−1 кристаллов. Образцы представляют монокристал-лические пластинки, вырращенные из пара химическнм методом. Измерения проведены с неполяризованным светвым пучком, распространяющимся приблизителщимся приблизительно рдоль оси анизотропии кристалла. Температура модулируется вблизи 65 К. Анализи-руются некоторы в спектрах отражения в зависимости от концентрации серы в смешанных кристаллах. Прородится подробное обсуждение оптических спектров в GaS и GaSe ниже основного края. Получается новая информадия об электронных энергетических уровнях для указанных соединений и для InSe, которые имеют аналогичную кристаллическую структуру.
    Notes: Summary The thermoreflectance spectra between 3 and 9 eV have been measured for a series of GaSxSe1−x mixed crystals. The samples were single-crystal platelets grown from the vapour by the chemical-transport method. The measurements were performed with a nonpolarized light beam propagating approximately along the anisotropy crystal axis and the temperature was modulated around 65 K. Many structures in the reflectance spectra have been analysed in their dependence on the sulphur concentration in the mixed crystals. On this basis a detailed discussion of the optical spectra in GaS and in GaSe beyond the fundamental edge is given, and new information concerning the electronic energy levels is obtained both for these compounds and for InSe, which has an analogous crystal structure.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Archives of orthopaedic and trauma surgery 101 (1983), S. 187-191 
    ISSN: 1434-3916
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Es werden 5 Fälle von medialen Schenkelhalsfrakturen beschrieben, die mit Femurkopf-Endoprothesen versorgt wurden. Alle hatten später Komplikationen, die die Auswechslung der Endoprothese mit totalem Hüftgelenkersatz erforderten. Die Komplikationen waren: Verschluß des Gelenkknorpels und der subchondralen Knochenfläche des Acetabulums, Osteoporose der angrenzenden Femurbezirke und schließlich Frakturen auf Höhe der Endoprothese. Jede Komplikation erforderte eine andere chirurgische Behandlung. Aufgrund dieser Erfahrungen verstärkt sich die Meinung der Autoren, daß, in besonderen Fällen, selbst bei Patienten in höherem Alter, aber in verhältnismäßig gutem Allgemeinzustand, bei der medialen Schenkelhalsfraktur Extensionsbehandlung, primäre Nagelung oder ein totaler Huftgelenkersatz versucht werden sollten.
    Notes: Summary Five cases who had endoprosthesis implanted for medial fracture of the neck of the femur are reported. All of them developed late complications that required replacement of endoprosthesis with total hip prosthesis. Complications included wearing of both joint cartilage and subchondral bone of the acetabulum, osteoporosis of the proximal end of the femur and fracture of the femur at the level of the endoprosthesis. Several problems of surgical management ensued. This experience strengthens the authors' opinion that other forms of treatment—reduction in traction and nailing or total hip prosthesis—should be tried first also in particular cases of chronologically aged, but physically healthy patients with medial fractures of the neck of the femur.
    Type of Medium: Electronic Resource
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