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  • Dynamics, dynamical systems, lattice effects  (1)
  • Immunogenecity  (1)
  • granulosa  (1)
  • 1
    Electronic Resource
    Electronic Resource
    A mannose-specific lectin from Vicia villosa seeds
    Amsterdam : Elsevier
    Biochimica et Biophysica Acta (BBA)/General Subjects 1201 (1994), S. 61-68 
    Details
    ISSN: 0304-4165
    Keywords: (V. villosa lectin) ; Circular dichroism ; Immunogenecity ; Oligosaccharide specificity ; Purification
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Medicine , Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0304-4165(94)90152-X
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Steroid release from separated theca and granulosa layers of Atlantic salmon (Salmo salar) ovarian follicles: the effects of a purified salmon gonadotrophin preparation (1988)
    Springer
    Fish physiology and biochemistry 5 (1988), S. 131-139 
    Details
    ISSN: 1573-5168
    Keywords: salmon ; Salmo salar ; ovarian follicles ; granulosa ; theca ; steroids gonadotrophin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Theca and granulosa layers were removed from ovarian follicles of mature Atlantic salmon (Salmo salar) and were separately incubated under sterile conditions with and without a partially purified salmon gonadotrophin preparation (GTH). Aliquots of the incubation media were removed at intervals and analysed for the steroids 17α, 20β-dihydroxy-4-pregnen-3-one (17α20βP), 17α-hydroxyprogesterone, progesterone, androstenedione, testosterone and oestradiol. The biosynthesis of C19 and C21 steroids was very largely restricted to the thecal tissue and was markedly stimulated in the presence of GTH. Androstenedione (max 65 ng/ml) and testosterone (max 14 ng/ml) were released from the earliest stages of incubation whereas the release of 17α-hydroxyprogesterone (max 51 ng/ml) and progesterone (max 5.5 ng/ml) commenced only after a lengthy induction period. A trace (1.0 ng/ml) of 17α20βP was produced by the theca in the presence of GTH but oestradiol was not detected. The granulosa preparations released levels of 17α-hydroxyprogesterone and androstenedione only marginally above the detection limits (ca 0.7 ng/ml) and there was little stimulation of output with GTH. Oestradiol (max 4 ng/ml) was released only in the presence of GTH. 17α20βP, progesterone and testosterone were not detected as products of this tissue. These results, together with those derived earlier from incubations of complete follicles support the view that the synthesis of 17α20βP is essentially a two-cell process in which 17α-hydroxyprogesterone produced in the theca is subject to the action of steroid 20β-hydroxysteroid dehydrogenase in the granulosa. The temporal pattern of release of steroids in these and earlier experiments is considered in relation to mechanisms of steroid biosynthesis and to their possible roles in oocyte final maturation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01875701
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    Paper (German National Licenses)
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  • 3
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    Evolution of anisotropic-to-isotropic photoexcited carrier distribution in graphene (2014)
    American Physical Society (APS)
    Details
    Publication Date: 2014-10-18
    Description: Author(s): Xiao-Qing Yan, Jun Yao, Zhi-Bo Liu, Xin Zhao, Xu-Dong Chen, Chengmin Gao, Wei Xin, Yongsheng Chen, and Jian-Guo Tian Femtosecond degenerate and nondegenerate pump-probe spectroscopy in graphene reveals the evolution of photoexcited carrier distribution in the energy band during relaxation: the initial occupation of photoexcited carriers centered at the excitation state is anisotropic in momentum space; this anisot... [Phys. Rev. B 90, 134308] Published Fri Oct 17, 2014
    Keywords: Dynamics, dynamical systems, lattice effects
    Print ISSN: 1098-0121
    Electronic ISSN: 1095-3795
    Topics: Physics
    Published by American Physical Society (APS)
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