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  • Antiferromagnetism  (1)
  • Growth hormone concentration (mean daily growth hormone concentration)  (1)
  • Optical properties  (1)
  • 1
    Digitale Medien
    Digitale Medien
    Mean 24-hour growth hormone and testosterone concentrations in relation to pubertal growth spurt in boys with normal or delayed puberty (1976)
    Springer
    European journal of pediatrics 122 (1976), S. 85-92 
    Details
    ISSN: 1432-1076
    Schlagwort(e): Delayed puberty ; Growth rate ; Growth hormone concentration (mean daily growth hormone concentration) ; Testosterone concentration (mean daily testosterone concentration)
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract The mean growth hormone concentration during a 24-hour period in 7 boys of short familial stature and a growth rate of 3.2–5.4 cm/year was between 1.0 and 4.6 ng/ml serum. In 7 boys with pubertal growth spurt and familial tallness (growth rate 7.2–11.0 cm/year) it varied from 0.97 to 4.4 ng/ml and in 6 boys with constitutional delay of puberty (a growth rate of 4.2–5.2 cm/year prior to puberty) from 1.3 to 4.3 ng/ml. No correlation was found between the 24-hour mean growth hormone concentration and the mean 24-hour testosterone concentration in serum or the growth rate, but a correlation was found between testosterone and the growth rate. It is concluded that the growth spurt in puberty is not due to a change in growth hormone concentration but rather to the increase of androgen production in puberty.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00466266
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Exact diagonalization results for multimagnon IR absorption in the cuprates (1995)
    Springer
    Journal of superconductivity 8 (1995), S. 567-570 
    Details
    ISSN: 1572-9605
    Schlagwort(e): Antiferromagnetism ; Optical properties ; Heisemberg model
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Elektrotechnik, Elektronik, Nachrichtentechnik , Physik
    Notizen: Abstract Recent measured bands in the mid IR of parent insulating compounds of cuprate superconductors [Perkins et al. Phys. Rev. Lett.71 1621 (1993)] are interpreted as multimagnon infrared (IR) absorption assisted by phonons. We present results for the coupling constant of light with this excitations and exact diagonalization results for the spectra and compare with interacting spin wave theory. The observed structures correspond to the absorption of one phonon plus two magnons and one phonon plus higher multimagnon absorption processes. Our results imply that IR absorption can be used as a unique probe of quantum antiferromagnetic systems.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00727427
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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    Artikel (Nationallizenzen)
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