Environmental Improvement Of Opencast Mining

Existing classifications of waste dumps in the quarries are given and their phenomenological nature is clarified. The need to identify the essence of the term "dump" is shown as well as the idea of "dump" as an artificial formation with everted and mixed rocks distanced from the quarry. Essential classification of man-made rock formations in quarries is developed. Characteristic of variations of man-made waste formations in quarries is developed. To reduce harmful effects of open-pit mining, dumps should be substituted with strat-lays - man-made structures relevant to natural stratification of litho-substances. Construction of strat-lays would improve ecological and technological culture of open cast mining

Security checking experiments with mobile services

In this paper, we continue to investigate th

Financial engineering of infrastructure projects : the concessional mechanism

Purpose: The article considers the model of financial engineering, in which financial resources for an infrastructure project are formed based on syndicated loans. Design/Methodology/Approach: The study is based on modern concepts of uncertainty and risk management theories and the concept of digital economy. It includes a system and diagnostic analysis, methods of financial analytics as well as quantitative and qualitative risk assessment methods. Findings: Authors analyzed the investment in the infrastructure projects development in the Russian Federation. The railways' export potential is analyzed and determined to depend on coal and container terminals. Authors highlighted the need for business consolidation and new infrastructure projects based on technologies of digitalization in the transport industry, reviewed the strategic importance of concession agreement for the construction of “Northern Latitudinal Railway”. Practical Implications: The research findings revealed that implementation of large infrastructure projects is capable to render breakthrough effect on GDP and economic growth rates of the Russian Federation. The adjusted experience could be introduced in the transport framework of the Russian Federation and abroad. Originality/Value: The main contribution of this study is in the highlighting features of concessional mechanism in the framework of large infrastructure projects.peer-reviewe

Степное сообщество пауков (Aranei) в балке с типчаково-ковыльной петрофильной растительностью

В степной балке в окрестностях с. Осокоровка (Нововоронцовский район Херсонской области, Украина) почвенными ловушками Барбера собрано 40 видов пауков, относящихся к 13 семействам. Наибольшим количеством видов характеризуются семейства Gnaphosidae (14 видов), Lycosidae (10 видов) и Thomisidae (7 видов). Максимальное видовое богатство, количество специфических видов и уловистость пауков отмечены в тальвеге балки. Этот биотоп служит рефугиумом для мезофильных видов, значительно отличаясь по составу аранеокомплекса от окружающих степных местообитаний

Начальный этап изучения пауков (Aranei) урочища Грабовое (Пятихатский район Днепропетровской области)

В урочище Грабовое (с. Беленщина, Пятихатский район, Днепропетровская область) отмечено 18 видов пауков, относящихся к 9 семействам. Наибольшим видовым богатством и относительной численностью характеризуются семейства Lycosidae (5 видов, 84,1 % общего обилия) и Thomisidae (3 вида, 7,3 %). Наибольшее количество видов пауков отмечено в нижней трети склона южной экспозиции (11 видов), наибольшее значение динамической плотности – в средней трети склона южной экспозиции (154,4 экземпляра на 100 ловушко-суток). В средней трети северного склона найдено наименьшее количество видов пауков (5 видов). Наиболее низкие значения динамической плотности зарегистрированы в нижней трети склона северной экспозиции (39,4 экземпляров на 100 ловушко-суток)

Subcutaneous cardioverter-defibrillator, patient selection, implantation, postoperative management in the Krasnoyarsk

This article describes the patient selection procedure for subcutaneous cardioverter-defibrillator implantation, the implantation technique, and the features of postoperative follow-up of patients, the features of programming at all stages of patient treatment