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  • Superfluidity and superconductivity  (2)
  • Arts  (1)
  • Chicken  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Catecholaminergic nerves in the embryonic chick ovary: co-localization with β2-adrenoceptor-bearing steroidogenic cells (1988)
    Springer
    Cell & tissue research 254 (1988), S. 1-9 
    Details
    ISSN: 1432-0878
    Keywords: Adrenergic nerves ; Steroidogenic cells ; Embryonic ovary ; β 2Adrenoceptors ; Cytochemistry ; Ultrastructure ; Chicken
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The present study investigates the innervation of the embryonic chick ovary with regard to (i) development and compartmentalization of catecholaminergic nerves, and (ii) presence of adrenoceptors on steroidogenic target cells of catecholaminergic nerve terminals. Catecholaminergic nerve fibers visualized by glyoxylic acid-induced histofluorescence first appeared at embryonic day (E) 13. From E15 through E21 the density of fluorescent aminergic nerves increased markedly in parallel with the concentration of catecholamines and numbers of nerve bundles and single axons seen at the electron-microscopic level. Catecholaminergic nerves were confined to the ovarian medulla and closely associated with interstitial cells. Nerve terminals approached interstitial cells up to a distance of 20 nm and, in their majority, exhibited uptake of the false adrenergic transmitter 5-hydroxydopamine. Although adrenaline amounted to 14% of the total catecholamine content at E21, adrenaline immunoreactivity was only detected in adrenal chromaffin cells, but not in nerve fibers or cell bodies within the ovary. Interstitial cells structurally matured between E15 and E21 as documented by an increase of smooth endoplasmic reticulum and tubular mitochondria. Monoclonal antibodies mAB 120 and BRK 2 raised against avian β 1 and mammalian β 2-adrenergic receptors revealed the presence of β 2-adrenoceptor-like immunoreactivity on the surface of interstitial cells, but not on any other cell type. The results are consistent with the notion of a dense adrenergic innervation of the embryonic chick ovarian medulla and its steroidogenic interstitial cells, and suggest the chick ovary as an excellent model for elucidating the functional role of a neural input to steroidogenic cells during development.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00220010
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    Paper (German National Licenses)
    Fulltext
  • 2
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    InnenStadtAktion - Kunst oder Politik? (2021)
    transcript Verlag
    Details
    Publication Date: 2024-04-11
    Description: Wem gehört die Stadt? - Diese Frage ist Kernstück der Auseinandersetzungen um die Innenstädte, die zunehmend zum umkämpften Terrain werden. »Sicherheit und Sauberkeit« gelten als oberste Maxime eines attraktiven Stadtbilds. Welche Rolle spielt Kunst in diesem Zusammenhang? Wo dient sie dazu, ordnungspolitische Maßnahmen durchzusetzen, und wie sehen kritische künstlerische Praxen aus? Im Zentrum dieser Untersuchung stehen die 'InnenStadtAktionen', mit denen KünstlerInnen, TheoretikerInnen und politische Initiativen Ende der neunziger Jahre gegen »Privatisierung, Ausgrenzung und Sicherheitswahn« intervenierten.
    Keywords: Kunst ; Politische Kunst ; Stadt ; Neoliberalismus ; Soziale Bewegungen ; Urban Studies ; Zivilgesellschaft ; Kunstwissenschaft ; Arts ; Political Art ; Urbanity ; Neoliberalism ; Social Movements ; Civil Society ; Fine Arts ; thema EDItEUR::J Society and Social Sciences::JH Sociology and anthropology::JHB Sociology
    Language: German
    Format: image/jpeg
    Format: image/jpeg
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    E-BOOK
  • 3
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    Sign inversion in the superconducting order parameter of LiFeAs inferred from Bogoliubov quasiparticle interference (2014)
    American Physical Society (APS)
    Details
    Publication Date: 2014-04-01
    Description: Author(s): Shun Chi, S. Johnston, G. Levy, S. Grothe, R. Szedlak, B. Ludbrook, Ruixing Liang, P. Dosanjh, S. A. Burke, A. Damascelli, D. A. Bonn, W. N. Hardy, and Y. Pennec Quasiparticle interference (QPI), by means of scanning tunneling microscopy/spectroscopy (STM/STS), angle-resolved photoemission spectroscopy (ARPES), and multiorbital tight-binding calculations, is used to investigate the band structure and superconducting order parameter of LiFeAs. Using this comb... [Phys. Rev. B 89, 104522] Published Mon Mar 31, 2014
    Keywords: Superfluidity and superconductivity
    Print ISSN: 1098-0121
    Electronic ISSN: 1095-3795
    Topics: Physics
    Published by American Physical Society (APS)
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    PAPER CURRENT
  • 4
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    Bound states of defects in superconducting LiFeAs studied by scanning tunneling spectroscopy (2012)
    American Physical Society (APS)
    Details
    Publication Date: 2012-11-06
    Description: Author(s): S. Grothe, Shun Chi, P. Dosanjh, Ruixing Liang, W. N. Hardy, S. A. Burke, D. A. Bonn, and Y. Pennec Defects in LiFeAs are studied by scanning tunneling microscopy and spectroscopy (STS). Topographic images of the five predominant defects allow the identification of their positions within the lattice. The most commonly observed defect is associated with an Fe site and does not break the local latti... [Phys. Rev. B 86, 174503] Published Mon Nov 05, 2012
    Keywords: Superfluidity and superconductivity
    Print ISSN: 1098-0121
    Electronic ISSN: 1095-3795
    Topics: Physics
    Published by American Physical Society (APS)
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    PAPER CURRENT
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