38 research outputs found

    Natural environment assessment of negative impact of anthropogenic factors

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    Sustainable development of each region of the country and improvement in living standards and public health can only be achieved by preserving natural capital and maintaining proper environmental quality. Environmental quality in the Krasnodar Region is determined by levels of anthropogenic and technogenic load on the natural environment. Sources of pressure are objects of industry, power engineering, transport, capital construction, agroindustrial complex and municipal services, which lead to pollution of atmospheric air, water and land resources, to pollution of surface and ground water and degradation of some water bodies, to disruption of ecosystems of flora and fauna. The article is devoted to the review of the condition of atmospheric air and water bodies in Krasnodar Krai, as well as to the study of pollution indicators of discharged wastewater in the territory of the region. Information on indicators of polluted wastewater discharge into water bodies is presented, a grouped table is determined on the basis of these pollution indicators, which indicates the main reasons for the continued pollution of surface water bodies, conclusions are drawn as to what measures to solve the global environmental problem should be taken to improve the quality of wastewater treatment

    Innovational methods of development of intellectual labor for economy’s security

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    The notion “development of intellectual labor for the purpose of economy’s security” is viewed as development of society’s intellectual potential that includes the protected socio-economic information, developed by a person or a group of persons. The social factors that reduce economic security and their consequences in economy are given, namely: negative dynamics of implementing new progressive technologies into production, insufficient coordination of work in the sphere of innovational development, etc. The forms of intellectual development of human resources (intellectual development of personality, control over intellectual information) are offered, which bring the country’s economy to competitiveness and security. The traditional and innovational methods of intellectual labor development are studied (studying in universities and colleges, increase of personnel’s qualification in view of academic degrees (Ph.D., doctor of economics), as well as receipt of economic information through Internet resources, scientific publication, statistical information, etc.), as well as the methods of development of IT services and methods of prevention of intellectual diversions and violation of information confidentiality. It is offered to implement the program of equal initial possibilities for intellectual development of human resources in view of access to higher education, creative activities, as well as legal protection for everyone, etc. Analysis of implementation of innovational methods of intellectual labor development supposes planning activities in view of development of intellectual labor for the purpose of the region’s economy’s security.peer-reviewe

    SOME BONE METABOLIC PARAMETERS IN PATIENTS WITH EARLY RHEUMATOID ARTHRITIS

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    Objective: To define the specific features of bone metabolism and to estimate bone mineral density (BMD) in patients with early rheumatoid arthritis (ERA). Subjects and methods. Fifty-three patients (9 males and 44 females) with ERA were examined. Markers of bone metabolism markers were assessed, by measuring the serum levels of osteocalcin and C-terminal telopeptides (bCrosslaps) by electrochemoluminescence immunoassay and those of type II interleukin (IL) 1 receptor (IL1RII) and IL-6 by enzyme-linked immunosorbent assay. Bone mineral density (BMD) was studied by distal forearm densitometry (dual-energy X-ray absorptiometry) on a DexaScan DX-10 apparatus. BMD was estimated in postmenopausal women by the T-test and in men and premenopausal women by the Z-test, as well as by the absolute value of BMD (g/cm2). Results. In patients with ERA, the level of bCrosslaps was 0.50.3 ng/ml (p0.05), which is accordingly higher and lower than the reference values. There were no changes in these parameters in relation to serogroup and Xray disease stage. With higher ERA activity, there was a tendency for bCrosslaps to increase and osteocalcin to remain unchanged. There was a tendency towards decreased IL1 RII and increased proinflammatory IL-6 levels. Correlation analysis revealed a correlation between the value of BMD and the content of bCrosslaps and osteocalcin in patients with ERA and between the levels of IL-6 and bCrosslaps. Regression analysis showed a significant impact of the parameters of the course of the disease and immunological parameters on BMD changes and bone metabolism markers. Age and body mass index also affected the parameters of BMD in patients with ERA

    Bone Regeneration in the Application of a New Device for Osteosynthesis in the Experiment

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    Background. Treatment of residual cavities after radical surgery for bone diseases is a vital problem of modern traumatology. Currently, there is an active search for devices both for osteosynthesis and bone-substituting masses. Aims. The purpose of this work was to test a new device for osteosynthesis. It can be used both for fixing bone fragments, and for studying the morphological features of bone regenerate in experiment.Materials and methods. A device for bone osteosynthesis of tubular bones in an experiment (Patent of the Russian Federation N 20116121487) was applied. The device consisted of two half-bushings, fastened to each other by a fierce clamp. Polypropylene was used as the material for the half-bushings, therefore no immunological reactions were observed. On the inner surface there were silicone cylinders, which directed pressure on the fragments and did not disturb the nutrition of the periosteum. The experiment was performed on Wistar rats. The surgical defect of the femur was filled with hydroxyapatite. Two groups of animals were identified. The bone in the first group was fixed by the device. The wire cerclage was used in the second group.Results. The study showed that the developed device does not disturb the nutrition of the periosteum, and also tightly fixes the osteoplastic material in the bone defect. Histological examination showed that bone regeneration was faster when the device was used. On the 21st day of the experiment, the regenerate filled the defect in the control group by 62 %, and in the experimental group by 73 %. The regenerate was represented by a woven bone. In all animals, bone regenerate formed a strong osteo-integrative connection with the maternal bone. In both groups, it looked like a mature bone tissue at the end of the experiment (28 days).Conclusion. The data indicate that the device does not disturb the processes of bone formation and allows for more efficient use osteoplastic material

    Effectiveness and cost-effectiveness of four different strategies for SARS-CoV-2 surveillance in the general population (CoV-Surv Study): study protocol for a two-factorial randomized controlled multi-arm trial with cluster sampling

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    Background: To achieve higher effectiveness in population-based SARS-CoV-2 surveillance and to reliably predict the course of an outbreak, screening, and monitoring of infected individuals without major symptoms (about 40% of the population) will be necessary. While current testing capacities are also used to identify such asymptomatic cases, this rather passive approach is not suitable in generating reliable population-based estimates of the prevalence of asymptomatic carriers to allow any dependable predictions on the course of the pandemic. Methods: This trial implements a two-factorial, randomized, controlled, multi-arm, prospective, interventional, single-blinded design with cluster sampling and four study arms, each representing a different SARS-CoV-2 testing and surveillance strategy based on individuals' self-collection of saliva samples which are then sent to and analyzed by a laboratory. The targeted sample size for the trial is 10,000 saliva samples equally allocated to the four study arms (2500 participants per arm). Strategies differ with respect to tested population groups (individuals vs. all household members) and testing approach (without vs. with pre-screening survey). The trial is complemented by an economic evaluation and qualitative assessment of user experiences. Primary outcomes include costs per completely screened person, costs per positive case, positive detection rate, and precision of positive detection rate. Discussion: Systems for active surveillance of the general population will gain more importance in the context of pandemics and related disease prevention efforts. The pandemic parameters derived from such active surveillance with routine population monitoring therefore not only enable a prospective assessment of the short-term course of a pandemic, but also a more targeted and thus more effective use of local and short-term countermeasures. Trial registration: ClinicalTrials.gov DRKS00023271. Registered November 30, 2020, with the German Clinical Trials Register (Deutsches Register Klinischer Studien

    Ecological features and new location of the rare relict species

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    Information on the new location of the high-mountainous species Craniospermum pseudotuvinicum (endemic to Mongolia) is given. The morphological and ecological-cenotic features of the species, as well as known locations within the Central Mongolian-Altai province are considered

    On the position of the tribe Eritrichieae in the Boraginaceae system

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    ABSTRACT: A system of the tribe Eritrichieae for the fi rst time developed from evolutionary-morphological and fl oristic-genetic approaches, contains 6 subtribes and 22 genera. A comparative analysis of all characters and chorology of species allowed to fi nd the position of the tribe Eritrichieae in the Boraginaceae system and proposed an assumed paths of its evolution
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