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Article
Genetic History of Russian Old-Settlers of the Arctic Coast of Yakutia from the Settlement of Russkoe Ust’ye Inferred from Y Chromosome Data and Genome-Wide Analysis
There are different hypotheses on the origin and time of appearance of Russian settlements in the northeast of the Arctic. To study the history of the formation of northern old-settler population of Yakutia, Y...
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Article
The Y-Chromosome Lineage Variation in Ancient and Modern Populations of the Sakha (Yakuts)
This review presents the results of paleogenetic studies on the ancient population of Yakutia in the Middle Ages. The diversity of haplogroups and STR-haplotypes of the Y-chromosome of 74 men from Yakut burial...
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Article
Generation of a Photoacoustic Response of a Two-Layer Polymer/Gel Structure
Generation processes of a photoacoustic response of a layered polyethylene/hydrogel structure by its irradiation with periodically modulated light have been experimentally studied. The heat sources are located...
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Article
Melting of 1-octadecene inside the pores of open-morphology silica gel: thermodynamic model and experimental studies
Melting of crystalline compounds inside the nanopores of open-morphology porous systems was studied on a model system, consisted of 1-octadecene and silica gels with different pore sizes, by means of thermogra...
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Article
Frequency Dependence of the Complex Conductivity of Thin Polymer Films
A method to experimentally determine the components of complex thermal conductivity for thin polymer films has been developed. It is based on measuring the temperatures of both sides of a film in which a perio...
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Article
Nonequilibrium Fluctuations of Light Scattering Intensity in the Neighborhood of the Phase Transition Temperature
Light scattering in a 3% aqueous solution of hydroxypropyl methylcellulose (metolose) is studied under nonequilibrium conditions within a temperature range of 303–353 K, i.e., in the neighborhood of the phase ...
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Chapter and Conference Paper
Two-Dimensional Ordered Crystal Structure Formed by Chain Molecules in the Pores of Solid Matrix
X-ray diffraction patterns of silicon and silica gel with the pores filled by 1-octadecene were analyzed. It was found that 1-octadecene in the pores of silica gel possesses a two-dimensional crystalline struc...
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Article
Characterization of Dielectric Properties in Liquid–Solid Phase Transition
A method for determining the complex dielectric permeability of liquids based on the temperature changes in geometrical parameters (thickness) of samples and over the phase transition range is proposed. Allowi...
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Article
Growth of bulk AlN crystals by vapor-phase epitaxy from atomic Al and NH3
A new approach to obtaining bulk AlN single crystals by vapor-phase epitaxy has been tested. NH3 and Al vapor were used as growth reagents. The following ranges of growth parameters were admissible for the labora...
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Article
Models of hydration and isomeric transitions of glucose molecules in aqueous solutions
The kinematic viscosity of aqueous glucose solutions is studied. It is found that the hydrodynamic radius of monosaccharide molecule in an aqueous solution depends on temperature in the range of 290–355 K. Usi...
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Article
MBE-grown nanoheterostructures with increased electron mobility
Multilayered nitride heterostructures AlN/AlGaN/GaN/AlGaN are grown using a Nanofab-100 multichamber domestic complex involving a STE3N3 specialized installation of molecular beam epitaxy. The obtained heteros...
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Article
Solar-blind UV photocathodes based on AlGaN heterostructures with a 300- to 330-nm spectral sensitivity threshold
Solar-blind UV photodetectors based on photocathodes are among the important applications of heterostructures based on group III metal nitride semiconductors. Related investigations are most frequently devoted...
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Article
Innovative Processing and Hydrometallurgical Treatment Methods for Complex Antimony Ores and Concentrates. Part II: Hydrometallurgy of Complex Antimony Ores
The article presents results of hydrometallurgical and bio-treatment of antimony ores and recommend new dissolvents for antimony sulfides. The authors introduce a processing plant which is a single operating p...
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Article
Innovative processing and hydrometallurgical treatment methods for complex antimony ores and concentrates. Part I
The largest Russian antimony ore deposits are reviewed analytically. The present-day physicochemical methods (nuclear quadrupole resonance, X-ray electron spectroscopy, multinuclear (13C, 15N, 31P) NMR) are used ...
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Article
Measurement of the layer thickness on rotating substrates in molecular-beam epitaxy apparatus
A simple and effective method is developed for synchronous recording of an interference signal to measure the thickness of a layer grown on a rotating substrate in molecular_beam epitaxy apparatus. The separat...
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Article
GaN/InGaN heterostructures grown by ammonia MBE with a wetting metal indium layer
We have studied the influence of conditions used for the growth of InGaN layers by the molecular beam epitaxy (with ammonia as a source of nitrogen) on the properties of GaN/InGaN heterostructures. It is estab...
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Article
Multilayer AlN/AlGaN/GaN/AlGaN heterostructures for high-power field-effect transistors grown by ammonia MBE on AlN/SiC substrates
Preliminary results on the transfer of the ammonia MBE technology of nitride transistor heterostructures to AlN/SiC substrates. The main device properties achieved previously with AlN/AlGaN/GaN/AlGaN multilaye...
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Article
Multilayer AlN/AlGaN/GaN/AlGaN heterostructures for high-power field-effect transistors grown by ammonia MBE on silicon substrates
We report preliminary results on the transfer of the ammonia MBE technology of AlN/AlGaN/GaN/AlGaN heterostructures to silicon substrates. Optimization of the growth conditions allowed the number of macroscopi...
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Article
Physiological and genetic bases of coevolution of complex systems ectoparasitic vector—causative agent
Coevolutionary relationships of ticks of the Ixodes genus with causative agents pathogenic for human of viral, bacterial, and protozoan nature are considered using the method of polymerase chain reaction (PCR)...
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Article
Specific features of kinetics of molecular beam epitaxy of compounds in the GaN-AlN system
The effect of growth conditions (V/III ratio, substrate temperature) on the properties of materials in AlN-GaN systems is discussed. A concept of the growth of the AlN/AlGaN/GaN multilayer heterostructure, whi...
