The peculiarities of adaptive responses of cardiorespira-Tory system in changing gas environment in rowers with different lung ventilation levels

The compensatory mechanisms of moderate forms of hypoxia, hypercapnia or their combinations in a healthy body are of certain adaptive value in formation of adaptive responses, intended to increase body resistance to a whole set of extreme factors, and sports activity is not an exclusion. Any body changes influenced by extreme factors result in gas imbalance - hypoxia and hypercapnia. Thereby, training with breathing gaseous mixtures with different oxygen and carbon dioxide concentration can be used to increase the level of functionalities without increasing training loads. Herewith, the individual features of body's physiological responses influenced by various extreme factors, including hypoxia and hypercapnia, in view of the random level of lung ventilation. Hence, the purpose of the study was to consider adaptive responses of cardiorespiratory system in persons with different lung ventilation levels when breathing under conditions of combined hypoxia and hypercapnia. The individual-typological features of ensured adequate level of metabolism of the gas transport system in the ones with different initial lung ventilation levels included more efficient heart work in those with the initially low breathing index and higher O2 blood extraction in the persons with a high breathing index

Diagrams of the formation of In2S3 and In 2Se3 films on vitroceramic upon precipitation, according to potentiometric titration

Boundary conditions and ranges of the formation of indium(III) sulfide and selenide upon precipitation by thiocarbamide and selenocarbamide are determined. Potentiometric titration of indium chloride (InCl3) in the concentration range of 0.0001 to 0.100 mol/L by a solution of sodium hydroxide is performed. It is found that the following pH ranges are optimal for In 2S3 and In2Se3 film precipitation: from 3.0 to 4.5 and from 9.0 to 14.0. Indium selenide layers 100 to 300 nm thick are prepared on vitroceramic by hydrochemcial precipitation. © 2013 Pleiades Publishing, Ltd

On the Question of Development of the CSTO Model Law «On the State Secret»

Urgent aspects of a state and development of the legislation on the state secret in the context of search of approaches to its harmonization within the CSTO are discussed

Magnetic and spectral properties of multi-sublattice oxides SrY2O4:Er3+ and SrEr2O4

SrEr2O4 is a geometrically frustrated magnet which demonstrates rather unusual properties at low temperatures including a coexistence of long- and short-range magnetic order, characterized by two different propagation vectors. In the present work, the effects of crystal fields (CF) in this compound containing four magnetically inequivalent erbium sublattices are investigated experimentally and theoretically. We combine the measurements of the CF levels of the Er3+ ions made on a powder sample of SrEr2O4 using neutron spectroscopy with site-selective optical and electron paramagnetic resonance measurements performed on single crystal samples of the lightly Er-doped nonmagnetic analogue, SrY2O4. Two sets of CF parameters corresponding to the Er3+ ions at the crystallographically inequivalent lattice sites are derived which fit all the available experimental data well, including the magnetization and dc susceptibility data for both lightly doped and concentrated samples.Comment: 14 pages, 9 figure