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The applicability of the notion of ecotone to the ornithofauna of forest-tundra near the Ob river is considered. Within the left-bank territory of the Ob, from the flood-plain and the Ob Bay to the Polar Urals and the eastern coast of the Baydarata Bay, from northern taiga to shrubby tundra, nesting of 177 bird species was proved by 2009. Nested avifauna of forest-tundra at the latitude of the Polar circle includes 140 species. For the northern extreme end of the taiga (64–65° n. l.), nesting of 151 species is known; for the shrubby tundra of Middle Yamal (68–69° n. l.), nesting of 73 species was established. The taiga-related species penetrate into the southern forest-tundra through flood-plain forests and the taiga islands of the placore, into the middle and northern forest-tundra only through flood-plain forests gradually loosing a part of the listed composition. Enrichment of the fauna of forest-tundra by the birds of tundra occurs at the placore: in the regions of tundras, tundra-like bogs and in depressions of forest-tundra lakes. The abundance of birds in the main biotopes in forest-tundra is somewhat lower than in northern taiga, and higher than in southern tundra. It is created by birds with large ranges. Open woodlands of the placore that distinguish forest-tundra from taiga and tundras for the majority of birds are the tundra, but richer in invertebrates due to the developed shrub stratum. At present, the forest-tundra does not have its own avifauna. It is likely to be forming because the species diversity of nesting birds increases, and the species having the maximum of population density in forest-tundra have appeared. However, at present there is no pronounced cumulative effect of faunas superposition.

The spatial arrangement and the dynamics of the number of forest reindeer in the central part of the Western Sayan during the period from 2004 to 2012 is considered. The territorial positions of sub-population groupings of reindeer, their migrations, sex and age structure, the effect of abiotic and anthropogenic factors are considered.

The results of the investigation of zoobenthos and zooperiphyton in two rivers in the basin of the middle reach of the Ob River are presented. Comparative analysis of two ecological groups of hydrocoles in zoobenthos and zooperiphyton showed differences in their taxonomic composition and dominating complexes. The similarities in total abundance and biomass of zoobenthos and zooperiphyton in a large river were detected, and higher values of the quantitative development of zooperiphyton in the medium river were observed.

The species diversity and quantity of zooplankton in the middle and lower reaches of the Vasyugan River, as well as in the estuaries of major tributaries were studied. Change in the dominant species complex in comparison with the data obtained 50 and 10 years ago was detected. There is a succession of plankton community, perhaps related to global warming and restructuring of the entire ecosystem of the Vasyugan land. Oil pollution of the river was not revealed with bio-indication methods.

Data on the seasonal variations in the populations of Arachnida, Opiliones in a yew-boxtree grove in the Caucasus State Natural Biosphere Reserve are presented. The structure of populations, seasonal changes in populations were studied. Data on the distribution and occurrence of Arachnida, Opiliones are presented.

Investigations are carried out in the area adjacent to the Teletskoe Lake of the Altai Reserve. Check-lists of species for studied habitats and their comparative analysis are given. The previous data about spiders fauna of the Altai Reserve are supplemented by 39 species. Three species are newly recorded for Altai Mts. Dominant species complexes are revealed. Peculiarities of seasonal dynamics of population for the order as a whole and for separate herpetobiont spiders groups are considered.

Quantitative studies of the population of mollusks in the herbaceous layer were carried out during the years 2006–2008 in secondary dry meadows in the gradient of pollution with the emissions from the Middle Ural Copper Smelter (Revda, Sverdlovsk Region). The number of mollusks at the territory with moderate pollution is decreased by a factor of 1,3 in comparison with the reference regions. In the direct vicinity of the smelter, mollusks in the grass stand disappear completely. The reasons of the change of the structure of mollusk population may be the toxic effect of heavy metals under the conditions of acidification of environment, the lack of available Ca due to its removal from the upper soil horizons by washing out, depletion of the species diversity and simplification of the architecture of meadow grass stand, causing modification of the hydrothermal regime in the herbaceous layer. A combination of these types of action is likely to cause elimination of the mollusks of herbaceous layer, which is not observed in the case when the environment is polluted only with heavy metals.

The review considers the main propositions of PELDOR theory. It is shown how from the analysis of PELDOR time traces it is possible to find the parameters of a spin system such as the distance and the distance distribution (spectrum), number of spins in aggregates and complexes, exchange integral and how to separate for the following analysis the inter- and intramolecular contributions to the general dipole interaction. Examples of PELDOR application in the studies of the spatial distribution of nitroxyl radicals, the charge effect of dipolar interacting nitroxyls on their spatial distribution are given and the results of the determination of distances and the spectrum of distances for nitroxyl bi-, tri-, and tetraradicals are presented. The works on nitroxyl radicals in which the orientation selectivity effect, spin exchange, and conformational properties of the radicals are examined by the PELDOR method are analyzed. The studies of the structure of paramagnetic ion–nitroxyl radical pairs and the PELDOR data on nitroxyls at high frequencies (high fields) are considered. The last section of the review is devoted to the works examining the properties such as the molecular flexibility of oligomers and supramolecules contains nitroxyl radicals.

The effect is studied of electron and X-ray irradiation on phosphorous centers in synthetic diamonds grown in the P–C medium by the Bars technology. After exposure to X-ray irradiation, a new paramagnetic phosphorus-containing center NP6, in addition to the phosphorous centers NP4 and NP5, is observed in diamonds annealed at a temperature of 2300°С and pressure of 7.5 GPa. The spectrum of NP6 is simulated to give the following parameters: A₁ = 29.42 G, A₂ = 23.28 G, A₃ = 75.85 G, g₁ = 2.00085, g₂ = 2.00083, and g₃ = 2.00083. The NP4–NP6 centers are assumed to be genetically related to the three nitrogen–phosphorous centers NP1–NP3 and be formed as a result of the transformation of the tetrahedral environment around the phosphorous atom into an octahedral environment at an annealing temperature of 2300°C. The synthetic diamonds annealed at 2300°С were successively exposed to irradiation with electrons with energies of 3.5 MeV (5×10¹⁷ e/cm²) and annealing at temperatures of 500°C and 700°С. The EPR method is used to find that annealing of the electron-irradiated crystals at 700°С leads to the formation of a new paramagnetic center with spin S = 1 and hyperfine structure (HFS) from one phosphorus atom with the parameters: g = 2.0012, D = 19.7 G, and А(Р) = 3.6 G. The center is likely to have an eight-vacancy chain structure with a phosphorus atom located at the center.

The transformation is studied of the compounds {[Ni(cyclam)]@CB[8]}Cl₂·16H₂O and {cis-[Ni(cyclen)(H₂O)Cl]@CB[8]}Cl×12H₂O during thermal annealing in a temperature range of 20 °C to 340 °C. Using EPR spectroscopy, {cis-[Ni(cyclen)(H₂O)Cl]@CB[8]}Cl×12H₂O, Ni is found to reduce to the 3d⁹ state during annealing in a hydrogen atmosphere yet oxidize to the 3d ⁷ state in the air at 20°C. In the case of {[Ni(cyclam)]@CB[8]}Cl₂×16H₂O, nickel ions remain in the 3d⁸ state after annealing in a hydrogen atmosphere and make a transition to the 3d⁷ state after air pumping. In both cases, annealing in a hydrogen atmosphere leads to the decomposition of the nickel complexes; simultaneously, a single line with g = 2.003 appears in the EPR spectra, which is likely to be due to the resulting metal nickel clusters.