Ueber Zuckerbestimmungen

Ohne Zusammenfassung     

Ueber Zuckerbestimmungen

Analytical and Bioanalytical Chemistry -     

Neue Reagenzien auf Aldehyde

Ohne Zusammenfassung     

Ueber die Bestimmung des Zinks

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Ueber Spectralapparate und Spectralanalyse

Ohne Zusammenfassung     

Indivisible ultrametric spaces

A metric space is indivisible if for any partition of it into finitely many pieces one piece contains an isometric copy of the whole space. Continuing our investigation of indivisible metric spaces [C. Delhommé, C. Laflamme, M. Pouzet, N. Sauer, Divisibility of countable metric spaces, European J. Combin. 28 (2007) 1746-1769], we show that a countable ultrametric space is isometrically embeddable into an indivisible ultrametric space if and only if it does not contain a strictly increasing sequence of balls.     

On Schur σ—Groups

In this paper, we consider some conditions of finiteness related to the p-class field tower problem over an imaginary quadratic field, where p is an odd prime.     

Enhanced Raman scattering as a probe for 4-mercaptopyridine surface-modified copper oxide nanocrystals.

We report on the application of Raman scattering as a probe to study 4-mercaptopyridine (4-Mpy) surface-modified CuO nanocrystals. Enhanced Raman scattering from 4-Mpy adsorbed on CuO nanocrystals was observed. The Raman signals displayed 10(2) enhancement compared with those of 4-Mpy in solution. We compared the Raman spectra of 4-Mpy molecules adsorbed on CuO nanocrystals and Ag, Cu substrate. A particular feature of the semiconductor substrate that was different from the metal substrate was revealed. The excitation wavelength-dependent behavior was clearly observed.