In this note we will be concerned with the proof and consequences of the following fact : if o is a differentiate action of a compact Lie group on a compact differentiate manifold M, then any differentia t e action of G on M sufficiently close to 0o in the C^topology is equivalent to 0O. 1. Notation. In what follows differentiate means class C. If M and V are differentiate manifolds, 2HI(M, ...

Bronchial hyperresponsiveness to contractile agonists and nonspecific irritants is a characteristic feature of bronchial asthma. The mechanisms causing this hyperirritability are unknown. The existence of separate receptors for leukotrienes C4 and D4 (LTCC4 and LTD4) has been, demonstrated previously by physiologic and radioligand binding studies. The rank order of potency of the sulfidopeptide...

Phenotypic switching has been observed in both prokaryotes and eukaryotes and involves stochastic switching between two or more alternative and heritable phenotypes, usually distinguished by surface antigenicity. This strategy, generally adopted by pathogens to escape recognition by the immune system and to adapt to a hostile host environment, results from spontaneous alterations in gene expres...

Dieser Beitrag zeigt einen Ausschnitt der auf ACHEMA 2022 gezeigten Trends, Entwicklungstendenzen, Neuentwicklungen und Innovationen in Mischtechnik, als einer wichtigsten chemie- verfahrenstechnischen Grundoperationen gerade vor dem Hintergrund eines Themenschwerpunkte „Nachhaltigkeit“ eine besondere Bedeutung zukommt. Neben Prozesslösungen für unterschiedliche Viskositätsbereiche werden Beisp...