An investigation complex on the mixture composition and the technology for the hardening laying mixture from the production wastes was carried out. The research showed that in case of the equal astringent expenditure, the main factors affecting the hardening material strength limit are granulometric composition and filler grinding. Increasing slag grinding thinness the laying mixture spread and water separation are decreased while the density and uniformity are increased. The laying mixture, containing coarse filler precipitates most of all while the minimal shrinkage is characteristic for the mixtures with fine – disperse admixtures and fine filler. The laying material grinding in disintegrator and the multifunctional admixture use increases their activity providing the laying samples solidity increase, the cement expenditure reduction per 15 – 20 %.
The study results of microelement content in leaves and needles of Priamur trees in the Khekhtsir nature reservation are presented. The levels of microelement concentrations, including heavy metals are defined for local plants compared to the world chemical element clarkes. Tree leaves and needles are proved to serve for the biogeochemical monitoring of the natural and technogenic land ecosystems in the Russian Far East south.
The presented 5-year analysis of total and primary morbidity of the population in the North Ossetia-Alania with rheumatoid arthritis demonstrates the growing importance of this issue for the Republic as a whole and for its individual residents, in particular. It is revealed that the overall incidence of rheumatoid arthritis of the adult population in 2008-2012 in some rural areas of North Ossetia-Alania significantly exceeds the national average. The highest incidence, prevalence and trend of their growth are characterized for the Prigorodny, Iraf, Mozdok and Digor areas. In the structure of the musculoskeletal system diseases rheumatoid arthritis occupies the second rank.
Zaramag reservoir constructed in the tectonically active mountain zone poses a high risk of destabilization of the environmental and geopolitical situation in the region. The climatic, hydrological, hydrogeological and biogenic changes in the adjacent mountain landscape is already observed. The geophysical and geological changes represent a danger to the dam and the Transcaucasian Highway.
In the context of the changing social and historical formations, when the socio-economic relations are being transformed, life-supporting decision problems largely depend on the exploitation of natural resources. Geo-environmental assessment of the status of mountain areas in Karachay-Cherkessia has revealed the trends in the individual components of the environmental systems: glaciers, climate, vegetation, biodiversity to establish a link between the nature use, regional climate warming and natural reaction components. According to the research we proposed a concept of the sustainable development in the region.
The article deals with the problem of water supply for Mamison Highland Resort, the latter being a constituent part of the international standing tourism cluster in the South of Russia, currently the state priority construction project under implementation. Utilization of the block glaciers melt waters is offered for water supply purposes.
In this work Ukraine territorial division into systems of water basins is presented, and also there are considered the main economic and environmental problems and also the approaches providing safe and balanced development of economic and ecological systems of water basins of Ukraine. There was carried out an assessment of the indices of the safe and balanced development of the economic and ecological systems.
In the article the principles of environment transformation in the mountain regions under the negative impact of mining- processing industry are considered. The effective ecological – economic mechanism meeting the requirements of the natural resources optimal use is offered. Measures for the ecological safety ensuring in terms of the mining production are described.
The estimation of the cave microclimate variability on the basis of the meteorological parameters monitoring – air temperature, relative humidity, air velocity and movement, as well as assessment of the carbon dioxide and oxygen concentration in the caves is presented. The artificial electric lighting of caves and cave visit by the intensive tour group elements affect the cave microclimate. It was revealed that the average annual temperature inside the cave rose in average by 0,50-0,8 oC. Humidity inside the cave is more in winter months to 98% and 96% less in summer. In a separate hole cave (Canyon) humidity is lowered to 92%, resulting in dehydration and cracking a speleothem losing their attractiveness. The seasonal distribution of oxygen (O2) is within 19,9-21,3%, which corresponds to normal. The distribution of carbon dioxide (CO2) is highly seasonal. Its concentration in the holes in the northern spring and summer may increase in some areas up to 0. 5-0. 7% (at a rate of 0. 03%), due primarily to the endogenous production of gas (CO2) and a weak outflow of air from a cave in the period.
Modern business is linked to massive use of the Internet and mobile communications. Use of these communications can compromise the integrity and confidentiality of data during their transmission and their storage. Remarkably rapid development of IT allows efficient data protection, but also gives new opportunities for eavesdropping and spying. Even with the latest protection there are ways to access data unnoticed. The topic becomes more significant when one considers the recent events related to an affair with
wiretapping of internet posts by the NSA. This paper discusses the current state of the e-business, in particular the protection of data and electronic mails.
ISSN 1998-4502 (Print) ISSN 2499-975Х (Online)