23 research outputs found
Vzájemné vztahy Ruska a Číny v rámcích BRICS a jejich mezinárodní význam z hlediska neomarxismu a neoliberálního institucionalismu
No full textNeo-Marxism and neoliberal institutionalism are applied to investigate which factors determine the cooperation of emerging powers and what consequences it may have globally within the case of Russia-China relations in BRICS. To this end, congruence analysis is applied. Based on available data, comparison of predictions with observations reveals that the majority of evidences accord with neo-Marxism. Russia and China affirm their position against the predominance of one center in the international arena and emphasize common commitment to a more equitable multipolar world order that is permanently reflected in the statements of Russian and Chinese leadership. The trade war between the US and China since 2018 is one of the evidence of the growing disintegration of the existing world order. Building a new order is based on the creation of regional coalitions of the countries that share common views on specific issues. Within the framework of BRICS, Russia and China have already taken measures towards own financial institutions as an alternative source of funding. The leaderships of both countries believe that emerging economies should have a greater voice and representation in international financial institutions. Their primary interest is the reform of the International Monetary Fund so that it...Neo-marxismus a neoliberální institucionalismus se aplikují ke zkoumání faktorů určujících spolupráci rozvíjejících se trhů a důsledků této spolupráci v případě rusko-čínských vztahů v rámcích BRICS. Za tímto účelem se používá metoda shody. Srovnání předpovědí a pozorování na základě dostupných údajů ukazuje, že většina důkazů souhlasí s neo-marxismem. Rusko a Čína prohlašují svoji pozici proti dominanci jednoho centra na mezinárodní scéně a zdůrazňují společný závazek ke spravedlivějšímu multipolárnímu světovému řádu, což se trvale projevuje v prohlášeních ruského a čínského vedení. Obchodní válka mezi USA a Čínou od roku 2018 je jedním z důkazů narůstajícího rozpadu stávajícího světového řádu. Vytváření nového řádu je založeno na vzniku regionálních seskupení zemí, které sdílejí společné názory na konkrétní problémy. V rámci skupiny BRICS Rusko a Čína již přijaly opatření k vlastním finančním institucím jako alternativnímu zdroji financování. Vedení obou zemí se domnívá, že by rozvíjející se země měly mít větší hlas a zastoupení v mezinárodních finančních institucích. Jejich primárním zájmem je reforma Mezinárodního měnového fondu tak, aby odrážel změny ve světové ekonomice. Rusko a Čína podporují měnovou spolupráci, včetně dohod o používání národních měn v obchodu mezi dvěma zeměmi, jakož i s...Department of International RelationsKatedra mezinárodních vztahuFakulta sociálních vědFaculty of Social Science
Еко-дизайн. Поєднання нових технологій та нетрадиційних художніх рішень
No full textThe article is devoted to synthesis of design and alternative power. The basic ways which allows giving decorative functions to devices of energy transformation by making their part of the art decision of interiors, exteriors and a landscape are described. In other way, involving alternative power in design area. Traditional and modern methods of alternative energy sources use are considered. The project of an unusual colour decision in water design which uses features of the physical phenomena of some chemical substances is presented, so the projects of the author developed with application of eko-technologies are shown.Данная статья посвящена синтезу дизайна и альтернативной энергетики. Описаны основные способы, позволяющие придавать декоративные характеристики устройствам преобразования энергии, делая их частью художественного решения интерьеров, экстерьеров и ландшафта. И наоборот, привлечение альтернативной энергетики в область дизайна. Рассмотрены традиционные методы использования возобновляемых источников, и их более современные модификации. Представлен проект необычного цветового решения в аквадизайне, который использует особенности физических явлений некоторых химических веществ, а также показаны проекты автора, разработанные с применением эко-технологий.Дана стаття присвячена синтезу дизайну та альтернативної енергетики. Описано основні способи, що дозволяють надавати декоративні функції пристроїв перетворення енергії , роблячи їх частиною художнього рішення інтер'єрів, екстер'єру і ландшафту. І навпаки, залучення альтернативної енергетики в область дизайну. Розглянуто традиційні методи використання поновлюваних джерел, і їх більш сучасні модифікації. Представлений проект незвичайного колірного рішення в аквадизайну , який використовує особливості фізичних явищ деяких хімічних речовин, а також показані проекти автора, розроблені із застосуванням еко - технологій
Composition of pigment complex in leaves of soybean plants, inoculated by Bradyrhizobium japonicum, subject to metal nanocarboxylates and various-levels of water supply
No full textA distinctive feature of legumes is the ability to combine two most important processes: photosynthesis and nitrogen fixation. However, the course of those processes, and therefore seed potential of those crops depend on a number of biotic and abiotic factors, the commonest being drought. Therefore, interest in physical-biochemical resistance of the plant organism to abiotic stress factors is increasing, as well as search for optimum ways to increase its adaptability. Success of adaptation of a plant’s organism to unfavourable environmental factors is known to largely depend on optimal functioning of assimilative apparatus. Some indicators of the condition of the apparatus are the content and ratio of photosynthesis pigments. Therefore, we aimed at determining the reaction of the pigment complex of Glycine max (L.) Merr. plants, grown against the background of optimal and insufficient watering, to inoculation of seeds with rhizobia bacteria Bradyrhizobium japonicum, cultivated using nanocarboxylates of chromium, cobalt, iron, copper and germanium. Research has shown that utilization of germanium nanocarboxylate as a component of inoculative suspension led to the highest content of chlorophylls in leaves of soybean of the studied variants in the blossoming phase during optimal watering, as well as significant increase in the content of carotenoids compared with the control plants regardless of the level of watering. At the same time, this element caused no significant effect on the chlorophyll content in plants grown in drought. It was confirmed that among soybean plants that were in stress conditions (blossoming phase) for two weeks, the highest content of chlorophylls was in leaves of plants grown from seeds inoculated with rhizobial suspension with addition of chromium and copper nanocarboxylates, which caused 25.3% and 22.8% increase in chlorophyll а, 29.4% and 32.3% in chlorophyll b and 26.4%% and 23.8% in them respectively, compared with the control. Furthermore, chromium and copper nanocarboxylates stimulated the content of carotenoids in the same plants, though it was less expressed than after adding germanium nanocarboxylate. The highest content of photosynthetic pigments in plants after the watering was resumed (phase of bean formation) was in cases of applying chromium and germanium nanocarboxylates. It was confirmed that the most efficient way to protect the pigment complex of soybean plants during drought was using chromium and germanium nanocarboxylates as components of inoculation suspension. The results we obtained indicate the possibility of applying chromium nanocarboxylate in the technology of cultivating soybean in the conditions of water deficiency as an effective way to improve biosynthesis of chlorophylls, as well as using germanium nanocarboxyllate as a component that provides a high level of activity of protective mechanisms of the pigment system of soybean, associated with resisting stress caused by water deficiency
Effect of lower alcohols on adsorption characteristics of sodium dodecyl sulfate solutions at liquid-gas interfaces
No full textPeculiarities of soybean-rhizobial systems subject to different levels of water supply fol-lowing treatment with succinic acid and epibrassinolide
No full textAll around the world, one of the leading – according to area of cultivated fields – oleic crops is soybean, which has a high demand for moisture. Given the significance of this crop and negative impact of drought on its yield, integrated research of the influence of insufficient water supply on the intensity of physiological-biochemical processes in those plants is necessary for identifying and understanding the drought-tolerance mechanisms of soybean, as well as symbiotic systems created with its participation, and also for search for ways to adapt it to this stressor. Therefore, our objective was determining the specifics of formation and functioning of the symbiotic systems of soybean and Bradyrhizobium japonicum, following treatment with succinic acid (0.01 g/L) and 24-epibrassinolide (0.00001 g/L), subject to different levels of watering. Our studies revealed that pre-sowing treatment of the seeds with a solution of 24-epibrassinolide with their subsequent inoculation with B. japonicum Т21-2 resulted in the most pronounced stimulation of formation and functioning of the symbiotic systems of soybean in the optimal growing conditions. At the same time, during water shortage, the intensity of nitrogen fixation was the highest in the plants grown from seeds that had been successively treated with the acid and the inoculant. We confirmed that water deficit led to significant increase in the overall content of phytohormones of cytokinin nature in the soybean root nodules, depending on the way the seeds were treated. However, the largest pool of cytokinins was seen in the plants that had been treated with succinic acid against the background of both optimal and insufficient water supply. Treatment of the seeds with 24-epibrassinolide caused significant excess of content of zeatin riboside over the content of zeatin during the flowering stage, whereas in the stage of pods formation it led to an opposite effect – excess of zeatin over zeatin riboside. Fourteen days-long water deficit decreased the content of chlorophylls in the leaves and grain productivity of the plants of all variants of the experiment. The use of growth regulators managed to alleviate the negative impact of stress and protect the pigment complex from ruination. Treatment of the seeds with solutions of succinic acid and 24-epibrassinolide provided the growth of soybean grain productivity regardless on water-supply level. The most efficient was 24-epibrassinolide. Therefore, use of 24-epibrassinolide for pre-sowing treatment of the soybean seeds provided formation of effective symbiotic systems with high nitrogen-fixing activity and caused a number of specific changes in the pattern of accumulation of free and complex forms of cytokinins in the root nodules of those plants. At the same time, the treatment provided the highest concentration of photosynthesis pigments in the soybean leaves, and as a result produced the greatest increase in grain productivity of plants of all the variants, regardless of levels of water supply. In turn, use of succinic acid produced the highest level of nitrogen-fixing activity in the case of the lowest number of root nodules in the conditions of insufficient water supply, and also caused significant accumulation of cytokinins in the nodules, compared with other studied variants against the background of both optimal and insufficient water supply. Therefore, it did result in increase in soybean grain productivity, but this was lower than in the plants treated with 24-epibrassinolide
RADIOFREQUENCY ABLATION WPW SYNDROME IN PATIENT WITH EBSTEIN'S ANOMALY
No full textThe case history of 19-year old patient with Ebstein's anomaly and WPW syndrome, which was held surgical correction of cardiac arrhythmias by radiofrequency ablation is described. 3-year observation of patient confirmed the success of the operation – absence episodes of arrhythmia</jats:p
OPREDELYaYuShchAYa ROL'VNUTRISOSUDISTOGO UL'TRAZVUKOVOGO ISSLEDOVANIYa DLYa VYBORATAKTIKI LEChENIYa BOL'NOGOS ZhELUDOChKOVOY TAKhIKARDIEY
No full textPOTENTIOMETRIC TITRATION OF HUMIC ACIDS SALTS
No full textThe influence of sodium humate concentration in the solutions on the carboxylic and hydroxyl groups content in the structure of their molecules was investigated by the method of back potentiometric titration. It is found that the quantity of active functional groups depends on the concentration of sodium humate in the solution: the number of accessible functional groups decreases with increase in concentration. It is shown, that the barite and acetate methods of the definition of acidic groups content in molecules of humic acids yield the underestimated results in comparison with a method of back potentiometric titration.Методом обратного потенциометрического титрования исследовано влияние концентрации растворов солей гуминовых кислот на содержание карбоксильных и гидроксильных групп в структуре их молекул. Установлено, что количество активных функциональных групп зависит от концентрации гумата натрия в растворе: с увеличением концентрации число доступных функциональных групп уменьшается. Показано, что баритовый и ацетатный методы определения содержания кислых групп в молекулах гуминовых кислот дают заниженные результаты по сравнению с методом обратного потенциометрического титрования
QUANTUM-MECHANICAL SIMULATION OF INTERACTION OF SODIUM DODECYLSULPHATE AND LOW-MOLECULAR ALCOHOLS
No full textThe possibility of formation of molecular complexes of dodecylsulphate and low-molecular alcohols (methanol, ethanol, n-propanol). Using semiempirical quantum-mechanical method РМ3, the energetic characteristics and structure of molecular complexes (DSN)n ·(ROH)m (n = 1, m = 1-5) have been calculated. The mean energy of hydrogen bonds in complexes lies in the interval 7.0 ÷ 9.7 kcal/mol and the H-bond length 1.76 ÷ 2.53 Ǻ.Показана возможность образования молекулярных комплексов между
додецилсульфатом натрия и низшими спиртами (метиловым, этиловым и
н-пропиловым). Полуэмпирическим квантово-химическим методом РМ3
рассчитаны энергетические характеристики и структура молекулярных
комплексов (ДСН)n ·(ROH)m (n = 1, m = 1−5). Средняя энергия водородных
связей в комплексах находится в диапазоне 7,0÷10,2 ккал/моль, при длине
Н-связи 1,76÷2,52 Ǻ
