Spectrophotometric observations of variable stars

We present the results of our visual and near-infrared spectrophotometric observations for 77 variable stars obtained during 1971–1991 in Chile, Armenia, and Bolivia. The quasi-monochromatic, extraatmospheric fluxes from the stars are given in absolute energy units (W m^?2 m^?1) at all wavelengths of the spectral range at 2.5-nm intervals.     

Development of Principles and Legal Rules Regulating the Use of Transboundary Water Resources by States

Water Resources - The study is focused on the step-by-step development of the modern system of legal rules and principles used at the international level to regulate the use of transboundary...     

Potentialities of the application of ozone-chemoluminescence to assess organic matter concentration in natural water

Processes of natural water ozonolysis are studied with the aim to determine the concentration of dissolved organic compounds by intensity of chemoluminescence resulting from the interaction between ozone and organic molecules. Experimental results are obtained with the use of an installation for recording ozone-chemoluminescence, which made it possible to study the potentialities of the new method and the effect of factors that can have a negative effect on water quality.