Percolation of the aligned dimers on a square lattice

Percolation and jamming phenomena are investigated for anisotropic sequential deposition of dimers (particles occupying two adjacent adsorption sites) on a square lattice. The influence of dimer alignment on the electrical conductivity was examined. The percolation threshold for deposition of dimers was lower than for deposition of monomers. Nevertheless, the problem belongs to the universality class of random percolation. The lowest percolation threshold (pc = 0.562) was observed for isotropic orientation of dimers. It was higher (pc = 0.586) in the case of dimers aligned strictly along one direction. The state of dimer orientation influenced the concentration dependence of electrical conductivity. The proposed model seems to be useful for description of the percolating properties of anisotropic conductors.Comment: 6 pages, 9 figures, submitted to EPJ

Oscillatory disintegration of a trans-Alfvenic shock: A magnetohydrodynamic simulation

Nonlinear evolution of a trans-Alfvenic shock wave (TASW), at which the flow velocity passes over the Alfven velocity, is computed in a magnetohydrodynamic approximation. The analytical theory suggests that an infinitesimal perturbation of a TASW results in its disintegration, i.e., finite variation of the flow, or transformation into some other unsteady configuration. In the present paper, this result is confirmed by numerical simulations. It is shown that the disintegration time is close to its minimum value equal to the shock thickness divided by a relative velocity of the emerging secondary structures. The secondary TASW that appears after the disintegration is again unstable with respect to disintegration. When the perturbation has a cyclic nature, the TASW undergoes oscillatory disintegration, during which it repeatedly transforms into another TASW. This process manifests itself as a train of shock and rarefaction waves, which consecutively emerge at one edge of the train and merge at the other edge.Comment: REVTEX, 8 pages, 13 PostScript figures, uses epsfig.st

Estimating gold-ore mineralization potential within Topolninsk ore field (Gorny Altai)

Based on the results of ore and near-ore metasomatite composition analysis, the factors and indicators of gold-ore mineralization potential were proposed. Integration of the obtained data made it possible to outline magmatic, structural, and lithological factors, as well as direct and indirect indicators of gold-ore mineralization. Applying multidimensional analysis inherent to geochemical data, the spatial structure was investigated, as well as the potential mineralization was identified. Based on the developed and newly-identified mineralization, small (up to medium-sized) mineable gold-ore deposits in skarns characterized by complex geological setting was identified

Human rights to Internet access and its safe use

This work is devoted to the analysis of the right to access the Internet and its safe use. The main purpose of the article is to consider the right to access the Internet and to a favorable social environment, as well as the introduction of these rights into the legislation of the Russian Federation. The authors analyzed the legislation of various states and international organizations in the field of free Internet access, considered the impact of a favorable Internet environment on the human psyche. The object of the study is the subjective human rights to access the Internet and to use the Internet safely. The subject of the study is the legal norms of the Russian Federation and foreign states, the norms of international law. The authors consider the role of a favorable environment on the Internet for minors, describe the main factors of restrictions on access to the Internet for teenagers. The methodological and theoretical basis of the research are private and general scientific approaches to the study of this topic. Formal logical and comparative methods were used, as well as methods of structural analysis. During the study, conclusions about the main differences in approaches to digital rights in the Russian Federation, foreign legal systems, and international law were drawn

DISEASES OF THE DIGESTIVE SYSTEM: PRIMARY DISABLEMENT IN THE IRKUTSK REGION

Materials and methods. The population-based cohort analysis was performed of the database of primary disabled in Irkutsk region due to the DDS for the period of 2013-2015. Morbidity rate of primary disablement was calculated for 10 000 of the population; nosology, age, gender specific structure of primary disablement was calculated in percentage. Results. The level of primary disablement due to DDs in the Irkutsk region was higher (2013, 2015 - 1.7; 2014 - 1.9) than in the Russian Federation (2013,2014 -1.2 per 10 000 of population). Working-age persons prevailed (in 2013, 2015 - 71.3 %, in 2014 - 73.9 %). The level was higher among the urban residents of the Irkutsk region (2015 - 1.8) than in rural areas (1.1 per 10 000 of people). In 2015, the share of men began to dominate (52.3 %, in 2013 - 45.4 %). Structure of primary disablement due to DDS deteriorated with increasing share of persons with the first and the second group disabilities - from 47.3 % in 2013 to 56.1 % in 2015. Liver cirrhosis is the most common cause for primary disability among DDS, its share increased from 66.8 % in 2013 to 75.2 % in 2015. The rate increased from 1.1 in 2013 to 1.3 per 10 000 people in 2015. Bowel disease has the second place with its share reduced from 23.0 % in 2013 to 12.3 % in 2015. The third place belongs to chronic pancreatitis

Perception of Russian Politics in Galicia in Diaries and Memoirs of World War I Participants

The problem of perception of Russian politics in Galicia during the First World War by participants in military operations is considered. The relevance of the study is due to the interest of modern society in historical sources of personal origin. The novelty is determined by a wide corpus of diaries and memoirs of participants in hostilities, un-published archival ego-documents introduced into scientific circulation. Based on new sources, the actions of the Russian authorities and the army in Galicia in 1914—1916 are interpreted. Plots are revealed that are not recorded by officials in official documents. Unjustified decisions of the local administration, bureaucratic confusion and arbitrariness are analyzed. The degree of influence of official Russian propaganda on the position of combatants and Galicians is determined in the study. Different points of view among Russian society on the organization of governance in Galicia and the national and confessional policy pursued there are revealed. The diaries and memoirs of the combatants made it possible to look at the events that took place in Galicia from the perspective of an eyewitness, shedding light on the features of everyday life, both of the local civilian population, and of military units, and of the medical service who found themselves in the conquered territories

Налоги на землю согласно исламскому праву: содержание и виды

Черкасова И. В. Налоги на землю согласно исламскому праву: содержание и виды // Актуальні проблеми держави і права : збірник наук. праць. Вип. 65 / НУ «ОЮА» , редкол. С. В. Ківалов (голов. ред.) та ін., відп. за вип. В. М. Дрьомін. – Одеса : Юрид. л-ра, 2012. – С. 496-504.В статье исследуется становление системы исламских земельных налогов. Особое внимание уделено взаимосвязи вида налога и правового статуса земли, принципам налогообложения

Convention Mechanism of International Cooperation on Preventing and Combating Drug Trafficking

The article presents the author's analysis of the international legal regulation of combating drug crime. It is considered the role of cooperation between the international organizations and law enforcement bodies in this field on the basis of two basic conventions: it is substantiated the need for transnational approaches in preventing and combating drug crim

Investigation of glycation products by THz time-domain spectroscopy

Glycation is the non-enzymatic reaction betwee