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  • 1
    Electronic Resource
    Electronic Resource
    Prevalence of polycystic ovaries in women with acne (1989)
    Springer
    Archives of dermatological research 281 (1989), S. 502-503 
    Details
    ISSN: 1432-069X
    Keywords: Acne ; Polycystic ovaries ; Pelvic ultrasound
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The prevalence of polycystic ovaries was determined by pelvic ultrasound imaging in 119 women (mean age, 23.6±6.06 years; range, 14–45 years) with acne but with no menstrual disorders, obesity, or hirsutism, and in 35 healthy controls (mean age, 25±5.8 years; range, 21–40 years). Polycystic ovaries were found in 54 out of 119 patients with acne (45.37%) and in 6 out of 35 controls (17.14%). The results of this study indicate that polycystic ovaries are common in women with acne and not necessarily associated with menstrual disorders, obesity, or hirsutism.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00510088
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    MTDSC Calibration Dependence of the Instrumental Response Upon Experimental Conditions (1999)
    Springer
    Journal of thermal analysis and calorimetry 56 (1999), S. 699-715 
    Details
    ISSN: 1572-8943
    Keywords: calibration ; heat capacity ; MTDSC
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The heat capacity calibration ‘constants’ of a commercial MTDSC system (TA 3100) were determined in a variety of experimental conditions. For a given modulation frequency, the calibration constants are the same within a few percents for different temperatures, and over a wide range of modulation amplitudes and scan rates. This variation decreases below 1% if hidden instrumental constraints are taken into account, which are related with the capability of the control system to achieve the desired temperature program. On the other hand, the calibration constant changes substantially with the period, and takes anomalously high values for the short modulation periods (20+40 s). Rules to optimize the accuracy of the system are given.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1010141719713
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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