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  • 1
    ISSN: 1040-452X
    Schlagwort(e): Frog ; Germinative area ; Dimple ; Microfilaments ; Life and Medical Sciences ; Cell & Developmental Biology
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Biologie
    Notizen: In Discoglossus pictus oocytes, the germinative area (GA) contains long and irregular microvilli where actin microfilaments are located. In the egg, the funnel-shaped dimple that originates by invagination of the GA is present. In the dimple both microvilli and microfilament bundles have a very orderly appearance. This report extends previous observations (Campanella and Gabbiani, Gamete Res 3:99-114, 1980) and shows that GA microfilaments are thinner (36 Å average) than dimple microfilaments (60 Å average), as measured in ultrathin section. Moreover, the interfilament distance is smaller in GA bundles than in the dimple bundles. To get an insight into actin-depolymerizing factor (ADF) in which cryostat sections were incubated prior to immunofluorescent staining with antiactin antibodies. The microfilaments of the GA microvilli and partially of the oocyte cortex are resistant to ADF when compared to those in the dimple and the rest of the egg cortex. We also investigated immunocytochemically the presence of tropomyosin and found that this protein is localized in the dimple and in the cortex of oocytes and eggs but is absent in the GA.
    Zusätzliches Material: 6 Ill.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
    Publikationsdatum: 2017-02-06
    Beschreibung: The international financial crisis was followed by waves of domestic regulatory reforms, first and foremost, in the United States and the European Union. Post-crisis financial regulation was sometimes different across jurisdictions. Moreover, the United States and the European Union sought in various ways to (re)assert their regulatory power not only vis-à-vis the market, but also with regard to other jurisdictions, which often resisted the projection of regulatory power beyond national borders. Consequently, a handful of important post-crisis transatlantic regulatory disputes emerged concerning E.U. rules on hedge funds, U.S. rules on bank structure and E.U. and U.S. rules on over-the-counter (OTC) derivatives. These disputes mainly involved the terms of access to each other's markets, the equivalence between domestic rules, and the extraterritorial effects of those rules. Some of these disputes were also intra-E.U. disagreements, whenever the preferences of the United Kingdom were different from those of Continental countries and similar to those of the United States. The network structure of the financial industry and the patterns of financial interdependence across the Atlantic amplified the extra territorial effects of domestic reforms, but at the same time triggered an active involvement of the transnational financial industry in the management and, eventually, the settlement of these disputes.
    Print ISSN: 1369-5258
    Digitale ISSN: 1469-3569
    Thema: Politikwissenschaft , Wirtschaftswissenschaften
    Standort Signatur Erwartet Verfügbarkeit
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