Potential landscape stability of recreational zones on the southern shore of Lake Baikal

The article deals with the landscape stability of five recreational zones on the southern coast of Lake Baikal: Portbaikal’skaya, Kultuk-Slyudyanskaya, Utulik-Baikal’skaya, Murinskaya and Snezhinskaya, the boundaries of which were previously defined during the tourist and recreational zoning of the central ecological zone of the Baikal natural territory between 2017 and 2019. We studied the natural stability of recreational areas on a landscape basis using the results of component-wise assessments of vulnerability and stability. The landscape-typological structure of recreational zones and component-wise stability within the boundaries of specific landscape sections were analysed, the integral stability of landscapes was obtained, and a comparative analysis of the landscape stability of the selected recreational zones has been carried out.

Changes in the agrochemical and biological properties of the soil when applying various types and ratios of organic and mineral

The article analyzes the main approaches to assessing the stability of agrocenosis soils. It is revealed that the mechanisms of soil stability are embedded in the structure and nature of the connections between the biota and the abiotic parts of the system, as well as the intra-component and inter-component connections between them. It is established that the structure of the soil is the most important aspect of the stability of any agroecosystem, which persists when its conditions change. A basic model of integral stability of sod-podzolic light loamy soil and agricultural technologies for its provision are proposed. Keywords: SOIL, AGROCENOSIS, AGROECOSYSTEM, STABILITY, STABILITY, ELASTICITY, RECOVERABILITY, INERTIA, PLASTICITY

Chandrasekhar's integral stability criterion for an equilibrium spherical cloud of a protostar, modified in the framework of non-Gaussian kappa-statistics

Within the framework of the non-extensive statistical mechanics of Kanyadakis, a generalization of the integral stability theorem of Chandrasekhar for the spherically symmetric distribution of matter and black radiation in an exoplanetary cloud in a state of gravitational equilibrium is obtained. For this purpose, the elements of deformed thermodynamics for an ideal gas, deformed canonical Gibbs distribution, as well as the effective gravitational constant, calculated in the formalisms of Kanyadakis and Verlinde, are used. In this, the deformation parameter κ (kappa) measures the so-called degree of nonextensiveness of the cloud system. In addition, the modified thermodynamic properties of blackbody radiation, in particular, the analogue of Stefan's law for radiation energy and generalized expressions for the entropy, heat capacity and radiation pressure, are discussed in the context of κ -statistics. The presented method of combining the indicated anomalous physical processes provides an alternative to the classical procedure of Chandrasekhar's derivation of the well-known integral theorems for gas configurations in gravitational equilibrium, and restores all standard expressions in the limit κ → 0. The results obtained will be able, according to the author, to explain some astrophysical problems of stellar-planetary cosmogony, associated, in particular, with modeling the processes of joint formation and evolution of a protosun and an exoplanetary cloud from a single nebula.

Practical Stability and Integral Stability for Singular Differential Systems with Maxima

In this paper, we introduce various definitions of practical stability and integral stability for nonlinear singular differential systems with maxima and give criteria of stability for such systems via the Lyapunov method and comparison principle.

Comparative Cross-Country Analysis of Sustainable Development of Russian Economy

This article addresses the phenomena of sustainable development of national economies driven by global inconsistency between nature resource intensive material production and severely limited natural resources. As a result, there is an increasing need for transition to global environmentally sound production. The article tests out the hypothesis about the mixed revolutionary and evolutionary nature of the sustainable development of the Russian economy. This type of sustainable development implies considerable fluctuations of its level depending on the scale and intensity of innovation activities. The results of the factor research and comparative cross-country analysis of the integral stability of the Russian economy are presented. The article provides the rationale for using more differentiated factors to rate national economies by the level of their dynamic sustainability. Dynamic sustainability factors that were identified made it possible to rate Russia’s economy among other national economies by the level of its sustainable development. The article suggests causes for the potential decrease in the sustainability of the Russian economy in the context of the deployment of the ‘Industry 4.0’ global production and technology platform. It also sets out conditions as well as measures to reduce the risks of considerably unbalancing functional systems of the Russian economy.

Proteome Integral Stability Alteration assay dramatically increases throughput and sensitivity in profiling factor-induced proteome changes

Various factors, including drugs as well as non-molecular influences, induce alterations in the stability of proteins in cell lysates, living cells and organisms. These alterations can be probed by applying a stability-modifying agent, such as elevated temperature, to a varying degree. As a second dimension of variation, drug concentration or factor intensity can be used. However, the corresponding analysis scheme has a low throughput and high cost. Additionally, since traditional data analysis employs curve fitting, proteins with unusual behavior are frequently ignored. The novel Proteome Integral Stability Alteration (PISA) assay avoids these issues altogether, increasing the analysis throughput by one to two orders of magnitude for unlimited number of parameter variation points. The consumption of the compound and biological material decreases by the same factor. We envision widespread use of the PISA approach in chemical biology and drug development.