Natural resource potential of northern regions: methodological characteristics of comprehensive assessment

The economic assessment of renewable natural resources remains a relevant and as yet unresolved problem. Today, the economic assessment of natural resources is viewed as one of the priority tasks in the state strategy for environmental management. To a large extent, such economic assessment has become relevant following the development of market relations in Russia that require the valuation of natural resource potential. In Russia, the state cadastral appraisal of natural resources, which is already continuing for a second decade, serves as the basis to calculate the land tax for individual categories of land and does not allow making a comprehensive assessment of natural resource potential. This article expands the concept of economic assessment, describes the practice of its implementation in northern regions. It examines the traditional methodological approaches to economic assessment that are used today, such as the cost approach and its modi cations, rental income approach, market approach, alternative approach, as well as the methodological approaches based on the results of sociological studies, which have become more widespread recently. The recommendations put forward by the authors with regard to the economic assessment provide for consistency in its implementation based on a results-driven approach that ensures the comparability of calculations and improves the reliability of obtained results. The methodological approaches proposed for assessing the land, forest, hunting, fishery and biological resources of wild plants allow considering the specific characteristics of northern territories and implementing a comprehensive economic assessment of the region’s natural resource potential. The authors consider the expediency of calculating the unit value index of natural resource potential in order to rank the areas within the subject of the Russian Federation in proportion to the investment in the projects aimed at developing the natural resources. The methodological recommendations have been tested in the context of Berezovsky municipal district of Khanty-Mansi Autonomous Area—Yugra.The article has been prepared with the support of the Grant No. 14–18–00456 Substantiating the Geo-Eco-Socio-Economic Approach to the Development of Strategic Natural Resource Potential of Northern Understudied Territories as Part of the Investment Project The Arctic—Central Asia provided by the Russian Science Foundation

Methodological Toolkit for Assessing the Investment Attractiveness of Renewable Resources in Northern and Arctic Territories

This article examines a pressing issue of assessing the investment attractiveness of renewable resources in underdeveloped Northern and Arctic territories that have a huge untapped natural resource potential. The subject of the study is the economic interactions that occur during the development of natural resource potential. The goal of this study is to develop the methodological toolkit for assessing the investment attractiveness for businesses and government authorities at various levels. At the pre-investment stage of development projects, we identified typical landscapes for zoning of the territory and assessed them for each type of renewable natural resources. Based on an analysis of existing approaches to natural resource zoning, the authors propose to identify three types of landscapes, including those that are attractive in terms of investment, those that are attractive in terms of investment with certain limitations, and those that are unattractive for investment. The study has confirmed the hypothesis that the selection of the most valuable natural resources expands the opportunities for their economic use. The investment attractiveness is determined by favorable geographical location, development of regional infrastructure, natural potential viewed as a priority object. The authors have provided the rationale for the need to valuate the natural resource potential of landscape areas within the boundaries of an assessed territory for the purposes of their ranking based on establishing the investment attractiveness. The limitations may be imposed by the low level of infrastructure development prerequisites, insufficient sustainability of landscapes to anthropogenic influences, export of raw materials for processing outside the territory, etc. The authors have substantiated the list of conditions that require the introduction of correction coefficients to the value indicators of natural resource potential in landscape areas. The main findings of the study are presented in the form of landscape zoning of the territory and methodological toolkit for assessing the investment attractiveness tested in Berezovsky Municipal District of Khanty-Mansi Autonomous Okrug—Yugra.The article has been prepared under the Grant No. 14–18–00456 "Substantiating the Geo-Eco-Socio-Economic Approach to the Development of Strategic Natural Resource Potential of Northern Understudied Territories as Part of The Arctic—Central Asia Investment Project " provided by the Russian Science Foundation

Incoherent pion photoproduction on the deuteron in the first resonance region

Incoherent pion photoproduction on the deuteron is studied in the first resonance region. The unpolarized cross section, the beam asymmetry, and the vector and tensor target asymmetries are calculated in the framework of a diagrammatic approach. Pole diagrams and one-loop diagrams with $NN$ scattering in the final state are taken into account. An elementary operator for pion photoproduction on the nucleon is taken in various on-shell forms and calculated using the SAID and MAID multipole analyses. Model dependence of the obtained results is discussed in some detail. A comparison with predictions of other works is given. Although a reasonable description of many available experimental data on the unpolarized total and differential cross sections and photon asymmetry has been achieved, in some cases a significant disagreement between the theory and experiment has been found. Invoking known information on the reactions $\gamma d\to\pi^0 d$ and $\gamma d\to np$ we predict the total photoabsorption cross section for deuterium. We find that our values strongly overestimate experimental data in the vicinity of the $\Delta$ peak.Comment: 22 pages, 23 figure

Effective spectrum width of the synchrotron radiation

For an exact quantitative description of spectral properties of synchrotron radiation (SR), the concept of effective width of the spectrum is introduced. In the most interesting case, which corresponds to the ultrarelativistic limit of SR, the effective width of the spectrum is calculated for the polarization components, and new physically important quantitative information on the structure of spectral distributions is obtained. For the first time, the spectral distribution for the circular polarization component of the SR for the upper half-space is obtained within classical theory

Dependence of effective spectrum width of synchrotron radiation on particle energy

For an exact quantitative description of spectral properties in the theory of synchrotron radiation, the concept of effective spectral width is introduced. In the classical theory, numeric calculations of effective spectral width (using an effective width not exceeding 100 harmonics) for polarization components of synchrotron radiation are carried out. The dependence of the effective spectral width and initial harmonic on the energy of a radiating particle is established

Operator algebras from the discrete Heisenberg semigroup

We study reflexivity and structure properties of operator algebras generated by representations of the discrete Heisenberg semi-group. We show that the left regular representation of this semi-group gives rise to a semi-simple reflexive algebra. We exhibit an example of a representation which gives rise to a non-reflexive algebra. En route, we establish reflexivity results for subspaces of H^{\infty}(\bb{T})\otimes\cl B(\cl H)

Classification of BPS equations in higher dimensions

We systematically classify all possible Bogomol'nyi-Prasad-Sommerfield (BPS) equations in Euclidean dimension $d\leq8$. We discuss symmetries of BPS equations and their connection with the self-dual Yang-Mills equations. Also, we present a general method allowing to obtain the BPS equations in any dimension. In addition, we find all BPS equations in the Minkowski space of dimension $d\leq6$ and apply the obtained results to the supersymmetric Yang-Mills theories. In conclusion, we discuss the possibility of using the classification to construct soliton solutions of the low-energy effective theory of the heterotic string.Comment: 31 pages, LaTe

Annihilation of edge dislocations in smectic A liquid crystals

This paper presents a theoretical study of the annihilation of edge dislocations in the same smectic plane in a bulk smectic-A phase. We use a time-dependent Landau-Ginzburg approach where the smectic ordering is described by the complex order parameter psi( r--> ,t) =eta e(iphi) . This quantity allows both the degree of layering and the position of the layers to be monitored. We are able to follow both precollision and postcollision regimes, and distinguish different early and late behaviors within these regimes. The early precollision regime is driven by changes in the phi ( r--> ) configuration. The relative velocity of the defects is approximately inversely proportional to the interdefect separation distance. In the late precollision regime the symmetry changes within the cores of defects also become influential. Following the defect collision, in the early postcollision stage, bulk layer order is approached exponentially in time. At very late times, however, there seems to be a long-time power-law tail in the order parameter fluctuation relaxation

Особенности воспроизводства населения уральского севера

Влиянию коноравируса на экономические и демографические показатели различных стран и регионов с 2020 г. по 2021 г. посвящено большое количество исследований. Однако последствия пандемии для населения северных и арктических территорий изучены недостаточно. Целью настоящего исследования является выявление особенностей воспроизводства населения в северном нефтегазодобывающем регионе (Уральский север: ХМАО-Югра и ЯНАО — северный и арктический субъекты Уральского федерального округа) и факторов, влияющих на уровень заболеваемости и смертности от COVID 19, в постсоветском и коронавирусном периодах. Влияние пандемии на процесс естественного воспроизводства населения оценивалось на примере Уральского Севера с учетом особенностей формирования и оценки демографического потенциала этого региона. В качестве основных методов использовались статистический и ретроспективный анализ, агрегирование, методы группировки, усреднения, аналогий. Ретроспективный анализ показал, что демографические процессы зависели от времени заселения и освоения территории. Общий тренд демографических процессов Севера и Арктической зоны Российской Федерации (АЗРФ) — постепенное снижение численности населения в большинстве регионов и субрегионов, за исключением ХМАО-Югры и ЯНАО. Смертность среди заболевших от COVID-19 в регионах Уральского Севера была ниже, чем в среднем по стране, при этом доля зараженных по отношению к общей численности населения в 2020 г., наоборот, выше. Это объясняется более низкой долей лиц старших возрастов в Югре и ЯНАО по сравнению с другими регионами России. Исследование показало, что пандемия COVID-19 не повлияла на уровень смертности и рождаемости в наиболее репродуктивных когортах населения (20–29 и 30–39 лет). Основной группой риска является население старших возрастов 60 и 65+, поскольку именно они определяют темпы и количество летальных случаев при заболевании коронавирусом. Исследование статистических данных выявило восьмимесячную цикличность волн COVID-19 во времени от их самого низкого уровня до пика. В дальнейшем предполагается оценить последствия пандемии для населения на муниципальном уровне в арктическом регионе

Особенности воспроизводства населения уральского севера

Влиянию коноравируса на экономические и демографические показатели различных стран и регионов с 2020 г. по 2021 г. посвящено большое количество исследований. Однако последствия пандемии для населения северных и арктических территорий изучены недостаточно. Целью настоящего исследования является выявление особенностей воспроизводства населения в северном нефтегазодобывающем регионе (Уральский север: ХМАО-Югра и ЯНАО — северный и арктический субъекты Уральского федерального округа) и факторов, влияющих на уровень заболеваемости и смертности от COVID 19, в постсоветском и коронавирусном периодах. Влияние пандемии на процесс естественного воспроизводства населения оценивалось на примере Уральского Севера с учетом особенностей формирования и оценки демографического потенциала этого региона. В качестве основных методов использовались статистический и ретроспективный анализ, агрегирование, методы группировки, усреднения, аналогий. Ретроспективный анализ показал, что демографические процессы зависели от времени заселения и освоения территории. Общий тренд демографических процессов Севера и Арктической зоны Российской Федерации (АЗРФ) — постепенное снижение численности населения в большинстве регионов и субрегионов, за исключением ХМАО-Югры и ЯНАО. Смертность среди заболевших от COVID-19 в регионах Уральского Севера была ниже, чем в среднем по стране, при этом доля зараженных по отношению к общей численности населения в 2020 г., наоборот, выше. Это объясняется более низкой долей лиц старших возрастов в Югре и ЯНАО по сравнению с другими регионами России. Исследование показало, что пандемия COVID-19 не повлияла на уровень смертности и рождаемости в наиболее репродуктивных когортах населения (20–29 и 30–39 лет). Основной группой риска является население старших возрастов 60 и 65+, поскольку именно они определяют темпы и количество летальных случаев при заболевании коронавирусом. Исследование статистических данных выявило восьмимесячную цикличность волн COVID-19 во времени от их самого низкого уровня до пика. В дальнейшем предполагается оценить последствия пандемии для населения на муниципальном уровне в арктическом регионе