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  • 1995-1999  (2)
  • 1985-1989  (2)
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Year
  • 1
    Electronic Resource
    Electronic Resource
    Electron-beam-induced currents collected by a p-n junction of finite junction depth (1985)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 57 (1985), S. 5386-5395 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The hole-electron pair generation region in a semiconductor bombarded by a scanning electron beam can be modeled as a circular cylinder tangent to the semiconductor surface. A cross-sectional plane normal to the cylinder is then examined. Under conditions of high semiconductor surface recombination velocity, a conformal transformation of this plane can be made to yield a geometry in which the method of images can be used to match boundary conditions at the junction and at the semiconductor surface. Thus, a solution for the electron-beam-induced current (EBIC) problem can be found in this manner when the generation region is external to the diffused or implanted region of a finite junction depth. An infinite series of images can be used to solve the problem when the generation region is within the diffused or implanted region under conditions of low, as well as high, surface recombination velocity. Thus, expected EBIC results are presented as a function of junction depth.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.334860
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    The incidence and differential diagnosis of acute groin injuries in male soccer players (1999)
    Oxford, UK : Blackwell Publishing Ltd
    Scandinavian journal of medicine & science in sports 9 (1999), S. 0 
    Details
    ISSN: 1600-0838
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine , Sports Science
    Notes: This prospective cohort study evaluated the incidence of acute groin injuries and estimated the distribution of differential diagnoses in male soccer players. Two senior male soccer divisions (21 teams, 326 players) were followed for 1 year. Patients with groin injuries were examined clinically as well as by herniography, sonography and by plain x-ray of the pelvic bones. Groin injuries accounted for 8% of all injuries. The incidence of groin injury was 0.8/1000 h of exposure. Thirteen (52%) of the 25 patients were clinically considered to have a muscle/tendon injury. However, when using sonography, muscle/tendon injury was only verified in 1 patient. Clinical suspicion of hernia or incipient hernia was evident in 4 (16%) of the patients, while 14 (56%) had a pathological finding at herniography. Clinical and paraclinical (i.e. diagnostic methods using imaging and other advanced techniques) diagnoses do not correspond very well in acute groin injury.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0838.1999.tb00216.x
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    No evidence for specific in vitro lymphocyte reactivity to HgCl2 in patients with dental amalgam-related contact lesions (1999)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of oral pathology & medicine 28 (1999), S. 0 
    Details
    ISSN: 1600-0714
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Blood lymphocytes from 20 patients with oral contact lesions to dental amalgam and 10 healthy individuals were analyzed for HgCl2-induced proliferation in vitro, using both a modified assay and a conventional assay. The release of interferon-γ (IFN-γ) was measured in cell supernatants. Six patients displayed positive reactions in patch tests to mercuric compounds. No significant differences were recorded in HgCl2-induced proliferation in cells from patients and controls, since only few in the whole material responded to submitogenic concentrations. IFN-γ was detectable in cell supernatants from some patients but also from controls and is not predictive of mercury allergy. Neither the phenotypes of peripheral lymphocyte subsets, the frequency of circulating cells expressing the interleukin-2 (IL-2) receptor, spontaneous lymphocyte proliferation nor concentrations of serum interleukin-6 differed between patient and control samples. In contrast to what has been claimed before, we did not find any evidence for specific in vitro lymphocyte reactivity in patients with oral contact lesions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0714.1999.tb02055.x
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Fluoride-induced cystic changes in the enamel organ of the rat molar (1986)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of oral pathology & medicine 15 (1986), S. 0 
    Details
    ISSN: 1600-0714
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Many substances have been found to cause enamel disturbances in toxic doses, and it has been postulated that these disturbances are linked to the formation of sub-ameloblastic cysts. In the present investigation, fluoride-induced sub-ameloblastic cysts in developing rat molars were related to fluoride dose, age of the animals, and the plasma fluoride level. The sub-ameloblastic cysts, which developed predominantly towards the end of the secretory stage of amelogenesis, appeared shortly after fluoride administration and regressed within 3 days. Hypoplasias and internal defects were found in the enamel under the disturbed ameloblast layer. The highest plasma fluoride levels were found in the youngest animals 24 h after injection. The frequency and size of the sub-ameloblastic cysts were clearly related to the fluoride-dose and age of the animal and, subsequently, to the plasma fluoride level.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0714.1986.tb00583.x
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
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