Disinfection of water in swimming pools by combined action of UV-light and ozone

Disinfection of water in swimming pools by combined action of UV-light and ozone / 258st American Chemical Society National Meeting and Exposition «Division of Environmental Chemistry», august 25-29, 2019, San Diego, CA. ENVR 394.P.5

ФИЗИКО-ХИМИЧЕСКИЕ ЗАКОНОМЕРНОСТИ ПРОЦЕССА ЭЛЕКТРОВОССТАНОВЛЕНИЯ КИСЛОРОДА В ПРИСУТСТВИИ ПРИРОДНЫХ АНТИОКСИДАНТОВ

The effect of individual antioxidants on physico-chemical parameters of ORR was studied under conditions of liner semi-infinite diffusion. Rate constants for coupled homogeneous reduction of active oxygen by the range to flavonoids were calculated under the optimal linear sweep rate.Possibility of determination of the parameters of reduction of active oxygen process (chemical and electrochemical rate constant, reversibility of process) in addition of individual antioxidants was showed by the computer simulation. Identification of substances with antioxidant properties was illustrated by changing of reduction current of active oxygen.Keywords: oxygen reduction reaction, ORR, antioxidant, flavonoids, rate constant, voltammetry(Russian)DOI: http://dx.doi.org/10.15826/analitika.2013.17.4.007A.N. Vtorushina, E.I. Korotkova, S.G. Kataev* Tomsk Polytechnic University, Tomsk, Russian Federation*Tomsk State Pedagogical University, Tomsk, Russian FederationРассмотрены физико-химические закономерности процесса электровосстановления кислорода (ЭВ О2) в присутствии индивидуальных антиоксидантов в условиях линейной полубесконечной диффузии, определены константы скорости взаимодействия антиоксидантов с активными формами кислорода и некоторые другие параметры процесса для ряда флавоноидов при оптимальной скорости развертки потенциала. Показана возможность определения некоторых параметров процесса ЭВ О2 (констант скорости химической и электрохимической реакции, обратимости процесса) в присутствии индивидуальных антиоксидантов с помощью методов компьютерного моделирования, а также возможность идентификации веществ, обладающих антиоксидантными свойствами, по изменению тока ЭВ О2 в присутствии исследуемых образцов.Ключевые слова: электровосстановление кислорода, антиоксиданты, вольтамперометрияDOI: http://dx.doi.org/10.15826/analitika.2013.17.4.00

Stimulating of entrepreneurs’ innovative activity in the Republic of Bashkortostan

The article views some aspects of promoting innovative activity in the Republic of Bashkortostan. The measures stimulating innovative activity have been grouped into blocks.1. Creating favorable conditions for innovative activity. 2. Increasing the population’s innovative activity. 3. Development of the system of scientific and production cooperation and innovation commercialization. 4. Investment support of innovative projects. 5. Development of innovative infrastructure. 6. Development of innovative small businesses. 7. Information provision of innovative activity. The main directions of implementing the above-mentioned conditions are: - lawmaking activity in the Republic, taking into consideration the federal legislation, international standards and traditions; - financial and tax inducement of scientific-technical and innovative activity; - international technological integration; - private-state partnership in the sphere of innovative activity. Recommendations are suggested, relating to the innovative policy activation for more efficient fulfillment of the key functions of the Republic’s scientific and research sector. The authors conclude that the Republic has all necessary preconditions for small entrepreneurship functioning: the natural conditions favorable for many kinds of economic activity, the forming local market infrastructure for small business servicing, and the availability of large enterprises and centers of economic activity.Keywords: entrepreneur, entrepreneurship, innovation, innovative activity, region, infrastructure, investments, stimulation, monitoring

Characterization of a novel dioxomolybdenum complex by cyclic voltammetry

Metalloenzymes that carry a pterin-based molybdenum cofactor in their center catalyze numerous reactions in the human body and play a crucial role in its metabolism. Specifically, these enzymes promote redox reactions and oxygen transport in the body. Their absence may cause many problems leading to disability or even death in early childhood. Therefore, model compounds need to be synthesized and analyzed to investigate the reactivity, redox potential, and geometry of these cofactors. This study focused on electrode processes and determined the redox potentials of the new bis-(4-mercapto-5-(p-tolyl)-3H-1,2-dithiole-3-thione)-dioxomolybdenum complex by cyclic voltammetry. The 4-mercapto-5-(p-tolyl)-3H-1,2-dithiole-3-thione ligand underwent irreversible oxidation and reduction at thiol and thione functional groups. The new dioxomolybdenum complex showed a quasi-reversible two-stage electrode process

Anthropometric approach to the diagnosis of mandibular asymmetry

The article describes the possibilities of clinical and x-ray diagnostics of mandibular asymmetry. In 61.5% of cases, the asymmetry of the lower jaw is accompanied by complaints from patients about the presence of articular sounds, mild pain when opening the mouth. Asymmetry of the lower jaw is more often determined in female individuals aged 19 to 46 years.В статье описаны возможности клинической и рентгенологической диагностики асимметрии нижней челюсти. В 61,5% случаев асимметрия нижней челюсти сопровождается жалобами пациентов на наличие суставных звуков, несильной боли при открывании рта. Асимметрия нижней челюсти чаще определена у лиц женского пола в возрасте от 19 до 46 ле

Neuropsychological Tests in Researches of Executive Functions in Adults With Attention — Deficit / Hyperactivity Syndrome

Целью данного обзора является анализ методик диагностики СДВГ у взрослых пациентов. Исследования показывают нарушение исполнительных функций у детей с СДВГ, однако не так много работ посвящено изучению исполнительных функций у взрослых. Помимо этого, в оценке и измерении исполнительных функций отсутствуют нейропсихологические маркеры.The aim of this review is to analyze diagnostic tools for ADHD in adult patients. There are large body of literature on executive functions impairment in ADHD children; however a lack of researches is account to the study of executive functions in adults. Furthermore, there are no neuropsychological markers in the assessment and measurement of executive functions

Testing of the STS-marker for the <i>Nud1</i> gene for the selection of naked barley hybrids

Background. Naked barley is a promising food crop. To enhance its production, active breeding is required to create productive varieties. The purpose of this study was to test the STS-marker for the Nud1 gene controlling the hulled phenotype, and use it for the production of naked barley hybrids. Materials and methods. Genotyping of 112 F2 hybrids obtained by crossing the naked black variety ‘Jet’ and the hulled white variety ‘Elf’ was carried out using wF2 and kR1, or tR2 primers in the regular PCR mode to amplify the recessive or dominant alleles of the Nud1 gene, respectively, and also in the multiplex PCR mode, which allows simultaneous amplification of both dominant and recessive alleles of the Nud1 gene. The genotyping data were compared with those on phenotypes of hybrids. Results and discussion. The possibility of using multiplex PCR with a set of primers wF2, kR1, and tR2 for identifying dominant and recessive alleles of the Nud1 gene in hybrid material has been demonstrated. However, while the observed number of hybrids homozygous for the recessive allele nud1 almost completely corresponded to their expected number, the clear predominance of homozygotes for the dominant allele Nud1 and the lack of heterozygotes compared to the expected number of hybrids of these groups indicates erroneous identification of some heterozygotes as dominant homozygotes, which must be taken into account during selection of hulled barleys by genotyping. Conclusions. The STS-marker amplified by primers wF2, kR1, and tR2, can be used to select recessive homozygotes nud1nud1 from hybrid populations, however, additional analysis is required for a more reliable identification of heterozygotes and homozygotes for the dominant allele of the Nud1 gene

Comparative characteristics of using MSCS in the treatment of burns

This review coverages the main properties of mesenchymal stem cells (MSCs), including their characteristic, immunogenicity, and function in the context of skin repair and regeneration in severe burns. Comparative characteristics of the use of MSCs in the treatment of burns, as well as positive and negative factors of such therapy, were carried out.В этом обзоре освещаются основные свойства мультипотентных мезенхимальных стволовых клеток (ММСК), включая их характеристику, иммуногенность и функцию в контексте репарации и регенерации кожи при тяжелых ожогах. Проведены сравнительные характеристики использования ММСК при лечении ожогов, а также позитивные и негативные факторы подобной терапии