GRAIN PRODUCTION IN THE CONDITIONS OF IMPORT SUBSTITUTION

The development of agro-industrial complex of our country takes place under tough social and economic situation, which is describes by ongoing foreign sanctions against Russia and its response embargo; integration processes within the CIS economic space; the devaluation of the ruble; as well as a variety of internal and external risks. This situation requires new approaches for the further development of agriculture as the most vulnerable sector of agro-industrial complex. Under the current conditions in economic development the effective functioning of grain sub-complex is of the utmost importance for ensuring the food sovereignty of Russia

Experience of application of ascorbate chitosan in the treatment of periodontal disease

Aim. To study the clinical anti-inflammatory effect of gel form 8% ascorbate chitozan in treatment of inflammatory periodontal disease. Material and methods. The study included 30 patients: 10 patients with chronic catarrhal gingivitis, 10 patients with chronic generalized periodontitis mild and 10 moderate. Criteria for inclusion of patients in the study: age between 18 and 45 years old, reliable diagnosis, informed consent of the patient. Case history of the disease duration from one to five years. The state of periodontal tissue was evaluated clinically and radiographically by intraoral radiography. According to treatment methods patients were divided into groups: group 1 underwent traditional treatment, group 2 was treated with the use of applications of 8% of ascorbate chitosan on the area of papillae and marginal gingiva with the capture of 1-2 cm of the mucous membrane of the alveolar process. The duration of treatment was 15 minutes daily for 10 days. Results. The patterns suggest that the therapeutic effect of ascorbate chitazan caused prolonged sanation of periodontal pockets due to the antibacterial activity of chitazan. Conclusion. The data show that regeneration in patients who have a combined treatment included ascorbate chitosan has been more rapid and complete than similar processes in periodontal patients treated in a traditional way

Features of Formation of the Nanoparticles of Alloys in Metal-carbon Nanocomposites FeCo / C and NiCo / C on Based Polyacrylonitrile

By the method of IR-heating the precursor on base of polyacrylonitrile, compounds of iron, cobalt and nickel metal-carbon nanocomposites were obtained, representing an ensemble of nanoparticles of intermetallic FeCo (NiCo), dispersed in nanocrystalline carbon matrix. XRD analysis revealed that the carbon structure of the PAN-based matrix changed from amorphous to nanocrystalline at the processing temperatures in the range 200-700 °C. Thus there is a reduction of metals from compounds released by degradation of the polymer with hydro-gen. FeCo alloy nanoparticles formed at synthesis temperatures T≥500 °C, in the case of nanocomposites Ni-Co / C alloy nanoparticle formation is possible at T ≥ 270 °C, which is associated with a lower temperature com-pared to the recovery of nickel from iron. According to the results of TGA and DSC found that metals are capable of initiating the chemical transformation in the PAN, resulting in reduction start temperature degradation. Ac-cording to the results of DSC revealed that the formation of nanoparticles is accompanied by release of heat due to exothermic processes occurring in the nanocomposites. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/3631

Influence of the Ratio of Metal Composed Nanocomposites Fe-Co / C on Phase Composition

Metalcarbon nanocomposites based on polyacrylonitrile and nickel chloride are synthesized under the influence of infrared heat. The resulting materials represent a system of carbon matrix formed during the carbonization of PAN, and distributed in it nickel nanoparticles. The average size of the nanoparticles in the nanocomposite was 15-25 nm. It was found that the distribution of nickel nanoparticles sizes is determined by temperature synthesis nanocomposite. Thus with increasing temperature, the predominant average particle size of the metal increases, and the distribution is spread and shifted toward larger sizes. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/3360

Статистический анализ данных, полученных в рамках проекта Smart Urban Nature

The work is devoted to the analysis of data obtained from sensors located on trees using the statistical method of analysis of time series Singular Spectrum Analysis (SSA). Data from TreeTalker sensors located on trees in Moscow is analyzed and compared. Some results of analysis carried out using software developed in Python are presented.Работа посвящена анализу данных, полученных с датчиков, расположенных на деревьях, с применением статистического метода анализа временных рядов Singular Spectrum Analysis (SSA). Анализируются и сравниваются данные с датчиков TreeTalker, расположенных на деревьях в Москве. Приводятся некоторые результаты анализа, проведённого с использованием программного обеспечения, разработанного на языке Pytho

Microbiota of Aquatic and Terrestrial Habitats of the Dzou Cave

Microbiota of the deep caves has been poorly explored. The most relevant issues of the caves biodiversity are the sources of the microorganisms' propagules and characteristics of autochthonous microbiota. The investigation presents the assessment of microbiota biodiversity from the Dzou cave (Western Caucasus). The aim of the study was to identify the species composition of micromycetes and phototrophs of the cave and to assess the sanitary-indicative microbiota in different habitats depending on the anthropogenic load. Microscopic and cultural methods were used to identify the microbiota from the entrance zone of the cave, as well as from aquatic and terrestrial habitats of the unlit deepest parts of the cave. The analysis of the phototrophic communities composition developed in the entrance area of the cave was carried out, 22 species were identified, among which cyanobacteria prevailed. The biodiversity of micromycetes was determined: 48 species were identified in the entrance zone, 60 species - in the dark zone of the cave. Comparison of the species composition of the dark and illuminated zones of the cave showed that in addition to species Humicola grisea, Hemicarpenteles ornatus and Alternaria sp., all species of entrance area are found in the unlit part of the cave. Representatives of genus Penicillium and Aspergillus were dominants. Revealed increase of the micromycetes and bacteria number was driving by increase in the level of anthropogenic load, especially in places of tourist camps. It was noted that the propagules of phototrophs are present in the cave substrates even at great depth, excluding some water samples, which may indicate the periodic drift of propagules or anthropogenic factor. The largest number of micromycetes species was detected in the clay deposits and rock samples. The least number of species was isolated from the water streams of the cave. A large number of micromycetes propagules was found in substrates near tourist camps, but their biodiversity was lower than in cave soils. © Published under licence by IOP Publishing Ltd

THE EFFECT OF EXERCISE ON DIVERGENT THINKING IN SECONDARY SCHOOL STUDENTS

This paper proposes a study of the effect of exercise on divergent thinking in secondary school students. The work is in the nature of a preliminary study of the problem, since it was carried out with a small number of high school students. It was important for us to conduct this study in order to ensure the reliability of the method used. Based on this test work, our research group will do a similar work with a more expanded number of private traders and experimental schools in general

Possible use of adaptation to hypoxia in Alzheimer's disease: A hypothesis

Disorders in memory and other cognitive functions in Alzheimer's disease (AD) may result from an exhaustion of adaptive reserves in the brain. Therefore it is a challenge to find methods to increase the adaptive reserve of the organism to combat AD. Excitotoxicity, Ca2+ homeostasis disruptions, oxidative stress, disturbed synthesis of NO, and impaired cerebral circulation are suggested as key pathogenic factors of AD. At present it appears that stimulation of the self-defense systems in neural cells is a promising strategy in restricting the progression of AD. These systems include those of antioxidants, heat shock proteins (HSPs), NO, and other so-called stress-limiting systems. Non-drug activation of these systems can be achieved most efficiently by adaptation of the organism to environmental challenges, such as hypoxia. In this paper the potential of methods used in adaptive medicine is explored. The protective mechanisms of adaptation to hypoxia may be related to restriction of oxidative stress in the hippocampus, the limitation of a decrease in NO production induced by β-amyloid, and increased density of the vascular network in the brain. In this review we selectively present data that support the idea that adaptation to hypoxia is a possible non-drug means in the prevention of AD. In our opinion this strategy may provide a break-through in the clinical approach of this disease. © Med Sci Monit, 2005

Possible use of adaptation to hypoxia in Alzheimer's disease: A hypothesis

Disorders in memory and other cognitive functions in Alzheimer's disease (AD) may result from an exhaustion of adaptive reserves in the brain. Therefore it is a challenge to find methods to increase the adaptive reserve of the organism to combat AD. Excitotoxicity, Ca2+ homeostasis disruptions, oxidative stress, disturbed synthesis of NO, and impaired cerebral circulation are suggested as key pathogenic factors of AD. At present it appears that stimulation of the self-defense systems in neural cells is a promising strategy in restricting the progression of AD. These systems include those of antioxidants, heat shock proteins (HSPs), NO, and other so-called stress-limiting systems. Non-drug activation of these systems can be achieved most efficiently by adaptation of the organism to environmental challenges, such as hypoxia. In this paper the potential of methods used in adaptive medicine is explored. The protective mechanisms of adaptation to hypoxia may be related to restriction of oxidative stress in the hippocampus, the limitation of a decrease in NO production induced by β-amyloid, and increased density of the vascular network in the brain. In this review we selectively present data that support the idea that adaptation to hypoxia is a possible non-drug means in the prevention of AD. In our opinion this strategy may provide a break-through in the clinical approach of this disease. © Med Sci Monit, 2005