Eigenschaften von polymolekularen Wasserfilmen auf der Oberfläche von Quarzkapillaren

Ohne Zusammenfassung     

Explicit bounds for rational points near planar curves and metric Diophantine approximation

The primary goal of this paper is to complete the theory of metric Diophantine approximation initially developed in Beresnevich et al. (2007) [10] for C³ non-degenerate planar curves. With this goal in mind, here for the first time we obtain fully explicit bounds for the number of rational points near planar curves. Further, introducing a perturbational approach we bring the smoothness condition imposed on the curves down to C¹ (lowest possible). This way we broaden the notion of non-degeneracy in a natural direction and introduce a new topologically complete class of planar curves to the theory of Diophantine approximation. In summary, our findings improve and complete the main theorems of Beresnevich et al. (2007) [10] and extend the celebrated theorem of Kleinbock and Margulis (1998) [20] in dimension 2 beyond the notion of non-degeneracy.     

Reactions of Lithium Acylates α-Carbanions with 1,2-Diiodoethane

Russian Journal of General Chemistry - The interaction of lithium acylates α-carbanions (obtained via metallation of acetic, butyric, and isobutyric acids with lithium diisopropylamide) with...     

One-Pot Synthesis of N-2,4-Enyne Cyclic Amines

Russian Journal of General Chemistry - Stereoselective synthesis of N-2,4-enyne cyclic amines was performed by one-pot animation of individual isomers of 1,3-dichloropropene and the subsequent...     

Chitosan–Tripolyphosphate Nanoparticles: Synthesis by the Ionic Gelation Method,Properties, and Biological Activity

Russian Journal of General Chemistry - Nanoparticles with an average size of ~100 nm were obtained by ionic gelation of chitosan (M 6.5×103 and 60×103 Da) in the presence of...