The rate difference between the weak decays of t and in supersymmetry

We find that the CP-violating asymmetry

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at the one-loop order within the minimal supersymmetric extension of the standard model is of the order of few percent for maximal CP violation. It could be measured by considering the rate difference in the one-lepton events.     

DPPH as a primary standard for quantitative EPR spectrometry

The present studies are concerned with the influence of the nature of the solvent on the time-dependent stability of the absorption maxima of the free radical 1,1-diphenyl-2-picrylhydrazyl (DPPH) at 520 nm as well as the intensity of its EPR spectrum. The correlation between these two characteristics of DPPH, the behaviour of which is found to be unpredictably strange, unambiguously shows that the problem for calibration of DPPH in order to be used as a primary standard for quantitative EPR spectrometry purpose is not solved yet. This problem needs additional studies in order to find exact methods for examination of the data concerning DPPH quantitative characteristics before its use.     

A new membrane electrode system with iodide-selective properties

The strongly basic anion-exchange resin Dowex 2 when saturated with triiodide and placed in a gel layer in a glass tube acts as an electrode for iodine, as does a platinum wire electrode. When the gel membrane is placed with a platinum electrode in an iodide solution, the anion-exchange resin adsorbs iodide selectively, and a decrease in the potential of the membrane electrode is caused. The arrangement can be used as an iodide-selective electrode, which shows a linear response over the pI^-range 1–5 and an excellent selectivity for iodide over other halides.