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  • 1
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 71 (1992), S. 2452-2454 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The broadening of spectral lines of intradonor absorption in n-GaAs is determined by random electric fields of charged donors and acceptors. The temperature dependence of the spectral line width reflects a redistribution of electrons over donors. At low temperatures the relative positions of charged and neutral impurities are strongly correlated by the Coulomb interactions in the system, whereas at high enough temperatures the distribution of electrons over impurities is random. This effect was recently suggested for quantitative characterization of semiconductors and a few theoretical attempts were made to describe the temperature dependence of the width of the spectral lines due to the transition from a correlated distribution of electrons to a random distribution in the low compensated material. We report here on the results of a Monte Carlo computer simulation of the transition. It is shown that the available analytical theories are not accurate enough and the reasons for such an inaccuracy are discussed.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Molecular and Cellular Endocrinology 41 (1985), S. 137-145 
    ISSN: 0303-7207
    Keywords: aromatisation inhibitor ; follicular fluid ; inhibin ; steroid stimulator
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-1440
    Keywords: Non-Hodgkin's lymphoma ; Adrenal neoplasm ; Adrenal hypofunction ; Meningeal neoplasm ; Lymphomatous leptomeningitis ; Antineoplastic agents ; Intrathecal application
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A 64-year-old man with high malignant B-cell lymphoma in both adrenal glands was investigated. Adrenal insufficiency was his predominant symptom at presentation. Despite surgical resection of the malignancy and cytostatic chemotherapy leptomeningeal involvement occurred and the patient died nine month after the diagnosis. Nine so far reported cases with primary adrenal lymphoma were reviewed. One of these also developed lymphomatous leptomeningitis. Suggestions of a pathogenetic contribution of adrenal lymphoma to leptomeningeal involvement and arising therapeutic consequences in the treatment of primary adrenal lymphoma are discussed.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-0584
    Keywords: CML ; Busulfan ; Hydroxyurea ; Interferon-alpha ; Duration of chronic phase ; Prospective study
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary For palliative therapy during the chronic phase of CML busulfan has proved to be the drug of choice. During the past years hydroxyurea and also interferon-alpha have gained increasing significance since they might prolong the duration of the chronic phase. In a multicenter study it is being determined, whether the use of hydroxyurea or of interferon-alpha instead of busulfan prolongs the duration of the chronic phase of Philadelphia positive CML. Additional goals are the examination of whether the types of disease evolution and the terminal phases differ between the treatment groups, and the prospective recognition of prognostic criteria for the duration of the chronic phase of CML. By December 31, 1987, 326 CML-patients had been randomized, 150 for busulfan, 150 for hydroxyurea and 26 for interferon-alpha. The average age is 50 years. 59 patients reached the end of the chronic phase, 55 died. The mean observation time of all patients is 1.34 years. At present no significant difference in survival is recognizable between the busulfan and hydroxyurea groups. Fewer adverse effects have been observed in the hydroxyurea group. Philadelphia chromosome negative patients show a higher average age and tend to have lower white blood cell and platelet counts. The number of patients having received interferon-alpha is still too small to allow evaluation. This report intends to document organization and progress of this study which to our knowledge is, at present, the largest ongoing prospective multicenter study on the therapy of CML.
    Type of Medium: Electronic Resource
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