Ways to Preserve Biological Diversity of Bog Ecosystems within Natural Parks System

Results of field research, GIS-mapping and simulation of ecosystems including relict bogs within the conservation area of a new regional Natural park are represented in the article. Functional zoning of the park area with the argumentation of different use provisions have been developed on the basis of author’s landscape pla

Study of natural formation and anthropogenic change in soils for sustainable land-use

In this work, we have presented an approach to rational territorial organization of the environment with the aim of harmonizing natural, economic and socio-demographic processes. Successive stages of the action for the development of basin nature management projects are proposed by us. Design technology rational land use is implemented for one of the small river basi

Improving Health Industries by the Supply-Chain Policy

Abstract— the article deals with issues of the policy in the sphere of protection of a Supply-Chain management’s rights and legitimate interests in the health centres. The issues of protection of the rights of Supply-Chain management in the field of health care revealed. In today's global and national economy, businesses are increasingly relying on outsourcing some of their activities and processes. Therefore, more and more companies at the Supply-Chain level, in specific networks, operate and compete with their suppliers and service providers. This process of outsourcing and the growing importance of supply chains has its consequences in the working conditions and health and safety of workers of supply companies and contractors. There are two main networks of Supply-Chain or relationships between companies and members of their supply chain: the main network (a company and suppliers of its specific goods and materials) and the secondary network (a company and its contractors and subcontractors special services such as activities Maintenance, construction, cleaning or catering This report provides an overview, analysis, conclusions and recommendations on how to upgrade health centers through the above Supply-Chain networks

Paraffin Blockage Specificsin Model Petroliferous Systems

In this paper we study the effect of the temperature factor, the content and composition of the dispersed phase components: paraffinic hydrocarbons, resins and asphaltenes, – on the sedimentation process in model systems. Adding a 0.025 to 0.1 wt.% of resins and asphaltenes doping agent to a 20 wt.% paraffin wax solution in kerosene shall be optimalto resist precipitate formation. Asphaltene and resin compositions, derived from the methane-kind petroleum-oil, are characterized by a maximum ability to prevent sedimentation. The presence of resins and asphaltenes in a model system shall significantly affect the physical and chemical characteristics of the sediment

Optimisations of the cost and structure of created investment resources of an entity based on financial leverage elements

The article demonstrates the author's method for cost and structure optimisation of created investment resources of an entity based on financial leverage tools for effective financing of real investments in case of development of an investment strategy for an entity development, namely: - Criteria of investments financing from line items of conservative, compromise, and aggressive approaches are determined using in the scheme of financing owner's capital, and also short-term and long-term loan fund capital; - Step-by-step creation of the financial performances considering industry specifics, scale of functioning of economic agents' activities is offered. Effective activities of the entities in long terms, ensuring high rates of their development and competitiveness increase in the conditions of market economy, are substantially determined by the level of their investment activity and the range of investing activities. One of the main tasks of forming the investment resources is the optimisation of their structure taking into account the profitability level and the investment risk. The optimisation of a capital structure by criterion of financial profitability level maximisation (profitability of the owner's capital) is reached by means of financial leverage mechanism. Profitability level maximisation for the capital considering the set level of financial risk is performed through the financial leverage, showing the use of borrowed funds by the entity. Carrying out complex calculations within the investment analysis with use of mechanisms of financial leverage allows determining the optimum structure of the created investment resources providing maximisation of the profitability level. © 2015, Mediterranean Center of Social and Educational Research. All rights reserved

Growth hormone deficiency in childhood brain tumors and acute lymphoblastic leukemia survivors

Thanks to modern treatment protocols, childhood cancer survivors (CCS) are a very fast-growing population nowadays. Cancer therapy inevitably leads to different late adverse effects, where endocrine disorders are highly prevalent, including growth hormone deficiency (GHD) which is the most common endocrine outcome after cancer treatment in childhood and contributes to impaired growth. Short stature is a big issue, which leads to problems in psychological and social adaptation of patients and reduces their quality of life. Impact of GH treatment on various physiological processes and global outcome of CCS is of great interest. Several studies have demonstrated an influence of GH and IGF-1 on the development/tumour growth, cell proliferation. In this regard, the issue of increasing the risk of cancer recurrence and/or the development of secondary neoplasms in CCS, causes a lot of controversy and is the subject of continuous evaluation. In this review, we went through the available data on the prevalence and pathogenesis of GHD following chemo- and radiotherapy, in particular after treatment of brain tumors and acute lymphoblastic leukaemia in childhood. In addition, here we discuss the existing problems in the diagnosis of GHD, the safety of GH replacement therapy, as well as the treatment algorithm of the GHD in adults

Atheroprotective Effects of Glycyrrhiza glabra L.

Cardiovascular diseases associated with atherosclerosis are the major cause of death in developed countries. Early prevention and treatment of atherosclerosis are considered to be an important aspect of the therapy of cardiovascular disease. Preparations based on natural products affect the main pathogenetic steps of atherogenesis, and so represent a perspective for the long-term prevention of atherosclerosis development. Numerous experimental and clinical studies have demonstrated the multiple beneficial effects of licorice and its bioactive compounds—anti-inflammatory, anti-cytokine, antioxidant, anti-atherogenic, and anti-platelet action—which allow us to consider licorice as a promising atheroprotective agent. In this review, we summarized the current knowledge on the licorice anti-atherosclerotic mechanisms of action based on the results of experimental studies, including the results of the in vitro study demonstrating licorice effect on the ability of blood serum to reduce intracellular cholesterol accumulation in cultured macrophages, and presented the results of clinical studies confirming the ameliorating activity of licorice in regard to traditional cardiovascular risk factors as well as the direct anti-atherosclerotic effect of licorice

Анализ крутильной стабильности расщепленных фаз

The specificity of overhead power lines is associated with the fact that the length of conductors between the supporting structures can reach tens of thousands of meters. Wires and their components are exposed to climatic factors, viz. wind, rain, ice, snow. As compared to other structural elements, conductors are of the highest flexibility and lowest rigidity, and, therefore, they are the most sensitive elements to these effects. Since the early fifties of the XX century, the increase in energy consumption has caused the construction of high and ultra-high voltage overhead lines with split phases. For these types of conductors, new forms of oscillations have been noticed in the areas between the struts, the essence of which is torqueing the split phase. As a result, there is a violation of the torsional stability of the phase: collision of wires in the middle of sub-span and friction of wires of stranded conductor against each other, which leads to damaging conductors and, as a consequence, to disruption of power supply to consumers. Almost any overhead lines may be subjected to oscillations of wires in the span under the influence of wind. One of the types of such mechanical oscillations is galloping, i. e. low-frequency oscillations of wires with an amplitude reaching the value of the boom of wire sagging, and, taking into account the possibility of elongation of the wire, even exceeding it. Fluctuations in the galloping can cause significant mechanical forces and last long enough to lead to the destruction of structural elements of power lines, viz. wires, insulators, fittings and even pillars. Due to the large amplitude of oscillations, conductors of neighboring phases can approach each other at an unacceptable distance, resulting in a short circuit. The boundary value problem of the torsional stability calculation of the split phase with a given multiplicity of splitting has been set and solved. The critical lengths of the sub-spans at which the stable violation of torsional stability is most likely have been determined. A computer program has been developed, which can be used in the design of high-voltage lines with split phase.Специфика работы воздушных линий электропередачи связана с тем, что длина проводников между опорными конструкциями может достигать десятков тысяч метров. Провода и их компоненты подвергаются воздействию климатических факторов: ветра, дождя, льда, снега. По сравнению с другими конструктивными элементами проводники имеют самую высокую гибкость и низкую жесткость, потому являются элементами, наиболее чувствительными к этим воздействиям. С начала 50-х гг. ХХ в. увеличение энергопотребления привело к строительству воздушных линий высокого и сверхвысокого напряжения с расщепленными фазами. Для проводников такого типа на участках между распорками были замечены новые формы колебаний, суть которых заключается в закручивании расщепленной фазы. В результате этого наблюдается нарушение крутильной стабильности фазы: соударение проводов в середине подпролета и трение проволок витого проводника друг о друга, что приводит к повреждению проводников и, как следствие, к нарушению электроснабжения потребителей. Практически на любых воздушных линиях возможно возникновение колебаний проводов в пролете под воздействием ветра. Одним из видов таких механических колебаний является пляска – низкочастотные колебания проводов с амплитудой, достигающей величины стрелы провеса провода, а с учетом возможности удлинения провода и превышающей ее. Колебания при пляске могут вызывать значительные механические усилия и длиться достаточно долго, чтобы привести к разрушению конструктивных элементов линий электропередачи: проводов, изоляторов, арматуры и даже опор. Из-за большой амплитуды колебаний проводники соседних фаз могут сблизиться на недопустимое расстояние, что приведет к короткому замыканию. Поставлена и решена краевая задача расчета крутильной стабильности расщепленной фазы с заданной кратностью расщепления. Определены критические длины подпролетов, при которых наиболее вероятно устойчивое нарушение крутильной стабильности. Разработана компьютерная программа, которая может быть использована при проектировании высоковольтных линий с расщепленной фазой

INFECTIOUS COMPLICATIONS IN PATIENTS UNDERGOING ORTHOTOPIC HEART TRANSPLANTATION

This article presents a retrospective analysis of infectious complications in the structure of morbidity and mortality of the patients underwent orthotopic heart transplantation. A significant role was assigned to the predisposing to in- fection factors. This study was based on the two years heart transplantation experience in the Republic of Belarus

Leaf traits of C3- and C4-plants indicating climatic adaptation along a latitudinal gradient in Southern Siberia and Mongolia

Increasing aridity is one of the most important trends of current climate change. Leaf functional traits suggest a substantial basis for assessing the aridity effects on vegetation. However, since plants possess diverse leaf morphology and anatomy due to different evolutionary history of taxa, the effect of aridity can hardly be revealed in a multi-species analysis. We studied leaf functional traits for 317 samples of 193 plant species in steppe and desert communities along a 1600-km latitudinal gradient in Southern Siberia (Transbaikalia, Russia) and Mongolia. We determined morphological leaf traits, quantitative anatomical parameters, physiological parameters, and photosynthetic pigments content. Different relevance of leaf traits for indication of plant response to climate has been demonstrated. The clearest changes in site-mean values along the aridity gradient were shown for leaf thickness, total chloroplast number per leaf area (Nchl/A) and total surface area of chloroplasts (Achl/A) and cells (Ames/A) per leaf area. Unlike leaf size and leaf mass per area, these quantitative mesophyll parameters related to plant photosynthetic capacity were strongly correlated with climate. We found no evidence for a decrease in sizes of mesophyll cells with aridity, but cell volume as well as chloroplast number per cell were linked with plant functional type (PFT). We revealed an increase in Nchl/A and Achl/A in desert-steppe species in comparison to steppe and forest-steppe vegetation types within each PFT of C3-plants (C3-dicot herbs, C3-dicot shrubs, C3-monocots and C3-succulents). C4-plants were generally characterized by low Achl/A and Ames/A, but had higher rate of CO2-transfer through mesophyll and chloroplast surfaces. C3- and C4-plants differed in response to aridity and showed opposite trends in changes of leaf traits along the aridity gradient. We conclude that leaf mesophyll traits contribute to important mechanism of climatic adaptation in different PFTs along a large latitudinal gradient. © 2018 Elsevier GmbHRussian Foundation for Basic Research, RFBR: АААА-А17-117072810011-1, 17-29-05019, АААА-А17-117011810036-3The authors are deeply indebted Joint Russian-Mongolian Complex Biological Expedition RAS and MAS, who supported the field observation and data collection used in this study. The analytical part of this research has been partially supported by RFBR grant 17-29-05019 , and partly by project №АААА-А17-117072810011-1 of Russian Federal Budget . The research of O.A. Anenkhonov was carried out using the framework of project № АААА-А17-117011810036-3 supported by the Russian Federal Budget