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  • 1
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 79-82 (Jan. 1991), p. 377-382 
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 54 (1992), S. 683-690 
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Models which contain a semihard component sensitively depend on the smallx region of the structure functions. Within the framework of a two component dual parton model the effect of recently proposed steeper structure functions is investigated. Drastic changes which appear in the bare scattering amplitudes get significantly reduced by unitarization. For presently available energies the semihard component seems still too small to allow for clear cut conclusions about the correctness of the various proposed structure functions. However, the predictions for SSC or LHC energies depend on the choice of the structure function quite decisively, resulting in a substantial uncertainty in the extrapolations. The uncertainty is reduced to a less worrisome level if the consideration is restricted to the strongly shadowed parton distribution.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1435-2451
    Keywords: Non-small-cell bronchogenic carcinoma ; Surgery ; Long-term results ; Tumour recurrence ; Follow-up programmes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Von 190 Patienten mit einem nichtkleinzelligen Bronchialkarzinom, die in der Zeit vom 1. 1. 1977 bis zum 31. 12. 1987 unter kurativer Zielsetzung in der Chirurgischen Universitätsklinik Köln operiert wurden, nahmen 67 (35%) regelmäßig, 64 (34%) unregelmäßig und 69 (31%) nicht an schematisierten Nachsorgeuntersuchungen teil. Bei 33 Patienten (25%) mit schematisierter Nachsorge wurden Tumorrezidive des Bronchialkarzinoms diagnostiziert, von denen 13 (39%) noch asymptomatisch waren. Drei Rezidive (9%) wurden erneut operativ, 7 (21%) strahlen-, 3 (9%) chemotherapeutisch und 20 (61%) ausschließlich symptomatisch behandelt. Die Prognose nach Diagnose des Rezidivs wurde weder durch das Vorliegen von Symptomen noch die Art der durchgeführten Behandlung beeinflußt. Die ermittelten Ergebnisse geben keinen Hinweis darauf, daß die Langzeitergebnisse durch die schematisierten Nachsorgeuntersuchungen verbessert werden können. Angesichts der relativ hohen Rate an behandlungsbedürftigen benignen pulmonalen Erkrankungen (15% der Patienten) und der großen Bedeutung, die die regelmäßige Tumornachsorge für die meisten Patienten (82%) hat, sollte nicht auf eine postoperative Nachsorge verzichtet werden. Außerhalb von klinischen Studien erscheint eine individuelle and symptomorientierte Nachsorge mit gelegentlichen Thoraxröntgenaufnahmen ausreichend.
    Notes: Abstract The outcomes of 190 patients in whom a non-small-cell bronchogenic carcinoma had been resected with curative intent in the Department of Surgery, University of Cologne, between 1. 1. 1977 and 31. 12. 1987 were analysed retrospectively. Sixty-seven (35%) of these patients underwent regular, 64 (34%) irregular, and 59 (31%) no standardized follow-up programmes. During follow-up procedures tumour recurrences were detected in 33 patients (25%). Thirteen (39%) of these recurrences were completely asymptomatic at the time of diagnosis. Three recurrences (9%) were resected with curative intent, but the patients died between 14 and 17 months later due to recurrent disease. Seven recurrences (21%) were treated by radiotherapy, three (9%) by chemotherapy, and 20 patients (61%) received no oncologic therapy. The survival rates after diagnosis of recurrence were not affected by the type of treatment or by the presence of clinical symptoms. There is no evidence that long-term results following resection of non-small-cell bronchogenic carcinoma can be improved by regular and standardized follow-up programmes. The observed incidence of postoperative pulmonary disorders and the patients' self-assessment underline the necessity for postoperative care after resection of bronchogenic carcinoma. Apart from clinical studies, follow-up should primarily focus on individual symptoms and should no longer include standardized investigations in asymptomatic patients except occasional X-ray checks of the thorax.
    Type of Medium: Electronic Resource
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