Measurement of the isospin-filtering dd -> 4He K+ K- reaction at Q=39 MeV

The total cross section for the dd -> 4He K+ K- reaction has been measured at a beam momentum of 3.7 GeV/c, corresponding to an excess energy of 39 MeV, which is the maximum possible at the Cooler Synchrotron COSY-J\"{u}lich. A deuterium cluster-jet target and the ANKE forward magnetic spectrometer, placed inside the storage ring, have been employed in this investigation. We find a total cross section of sigma(tot) < 14 pb, which brings into question the viability of investigating the dd -> 4He a0(980) reaction as a means of studying isospin violation.Comment: Five pages with three eps figure

Substantiation of the choice of optimal concentrations of active ingredients of the antioxidant composition for fruit treatment before storage

UK: Розроблена антиоксидантна композиція на основі іонолу, диметилсульфоксиду та лецитину, застосування якої сприятиме подовженню терміну зберігання плодів з мінімальним рівнем що- добових втрат. Проведеною оптимізацією встановлено, що при зберіганні плодів яблуні та груші концентрація дистинолу повинна бути на рівні 0,041…0,042 %, концентрація лецитину – 2,9 %, при зберіганні плодів сливи відповідно: дистинолу – 0,022 %, лецитину – 3,4 %

The use of classical and modern methods in rapeseed (Brassica napus) breeding at VNIIMK

Introduction. Rapeseed is a facultative autogamous plant; its percentage of cross-pollination is 10–50%, so rapeseed breeding engages the line and population breeding methods as well as the development of hybrids and all innovative research approaches.Material and methods. Among the main techniques used for the development of parent material and, eventually, cultivars at the Pustovoit Institute (VNIIMK) is the pedigree method (individual selection from intraspecific and interspecific hybrid populations, combined with inbreeding). Physical and chemical mutagenesis is also employed in rapeseed breeding at VNIIMK. The material with yellow-colored seed coat has been obtained by exposing rapeseed seeds to various doses of gamma rays (50, 100 and 150 kR). Seed treatment with chemical mutagens is primarily aimed at changing the fatty acid composition of oil.Results. Breeding achievements for winter and spring rapeseed, registered by VNIIMK in the State Register of Breeding Achievements of the Russian Federation over the past 15 years, are highly productive line cultivars with a seed yield of 4–5 t/ha for winter rapeseed, and 2–3 t/ha for spring rapeseed. Promising experimental interline hybrids, significantly exceeding the reference in seed yield (by 1.61–2.26 t/ha), have been developed. Yellowseeded lines, which exceed the black-seeded reference cv. ‘Tavrion’ in seed yield by 0.08–0.15 t/ha, have been selected. We developed the material with an oleic acid level of 78.9–80.5%

Breeding of winter rapeseed inbred lines for the development of parent forms for hybrids

Introduction. The V.S. Pustovoit All-Russian Research Institute of Oil Crops (VNIIMK) performs the breeding of interline rapeseed hybrids using the Ogura CMS. The program of interline winter rapeseed hybrid development was aimed at studying the efficiency of self-pollinated line breeding from population cultivars, assessing the impact of inbreeding depression on economically important traits, analyzing the changes in the lines’ traits after their transition to the sterile basis, and obtaining fertility restorer lines with an acceptable level of glucosinolate content in seeds.Materials and methods. Intraspecific hybrids, cultivars developed at the Pustovoit Institute and those of foreign breeding were employed as parent material for the development of self-pollinated lines. Self-pollination of rapeseed plants was performed using spunbond isolators. Over 1000 plants were self-pollinated every year. Generations of self-pollinated lines S1 –S4 were planted on 2.25 m2 plots, and during the growth season their visual screening was undertaken to assess their morphobiological traits. Starting with S5, the lines were evaluated for their yield on 7.5 m2 plots.Results. The inbreeding depression was found to not exceed 3–15% of the seed yield. The transition of the lines to sterile cytoplasm did not have any negative consequences. A series of experimental hybrids were developed, exceeding the reference cultivar ‘Loris’ in seed yield by 23–48%. New hybrid combinations also exceeded the reference in seed yield by 21–54%

The Straw Tube Trackers of the PANDA Experiment

The PANDA experiment will be built at the FAIR facility at Darmstadt (Germany) to perform accurate tests of the strong interaction through bar pp and bar pA annihilation's studies. To track charged particles, two systems consisting of a set of planar, closed-packed, self-supporting straw tube layers are under construction. The PANDA straw tubes will have also unique characteristics in term of material budget and performance. They consist of very thin mylar-aluminized cathodes which are made self-supporting by means of the operation gas-mixture over-pressure. This solution allows to reduce at maximum the weight of the mechanical support frame and hence the detector material budget. The PANDA straw tube central tracker will not only reconstruct charged particle trajectories, but also will help in low momentum (< 1 GeV) particle identification via dE/dx measurements. This is a quite new approach that PANDA tracking group has first tested with detailed Monte Carlo simulations, and then with experimental tests of detector prototypes. This paper addresses the design issues of the PANDA straw tube trackers and the performance obtained in prototype tests.Comment: 7 pages,16 figure

Сучасні методи викладання медичних дисциплін у вищій школі

Modern methods of teaching medical disciplines in higher education. The article addused modern methods of medical disciplines to teach high society in school. For example modern, highly effective approaches for conducting lectures, with Introduction discuss elements. Detailed and isolated structure and methods “question-answer” and “case study” to use them during the workshops, contributing to the emergence of professional competence of students , and significantly improve the efficiency of the perception of the students of the academic material.У даній статті докладно розглянуто сучасні методи викладання медичних дисциплін у вищій школі. Наведено сучасні високоефективні підходи до проведення лекцій, з впровадженням елементів дискусій. Детально висвітлено структуру методів “питання-відповідь” і “кейс стаді”, їх використання при проведенні практичних занять, що сприяють появі професійної компетентності студентів, і значно підвищують ефективність сприйняття студентами академічного матеріалу

Inadecuación de la audiencia al rebelde para denunciar la infracción del derecho de audiencia debida a notificación irregular

The purpose of this study was to analyze students’ awareness and con­sciousness about the threat to health of risk factors for the development of chronic non-infectious diseases, to determine whether they have the skills of a healthy lifestyle and to develop and scientifically substantiate the Algorithm for introducing health-saving educational technologies in the educational process of higher educational institutions of Ukraine. A sociological survey was conducted among students of higher educational institutions of Ukraine regarding the levels of awareness and consciousness about certain factors in the development of non-infectious diseases. 430 students of the Kiev National University of Trade and Economics and 216 students of SumyStatePedagogicalUniversitywere interviewed. A specially designed questionnaire was used. A high level of awareness of students about the main factors in the development of non-infectious diseases – poor nutrition, low physical activity, smoking and alcohol abuse has been established. At the same time, students are not sufficiently conscious about the risk of developing diseases and are unsufficiently motivated to a healthy lifestyle. It is shown a significant difference in indicators of healthy lifestyle among students of institutions of various profile. The Algorithm for the introduction of a health-saving educational technologies into the educational process of higher educational institutions, which is a scientifically substantiated system containing the main tasks, principles and measures aimed at raising the level of awareness and consciousness of young students about the health threat of risk factors for the development of chronic non- infectious diseases has been developed. The data obtained are the basis for the improvement of measures for the prevention of non-infectious diseases among students inUkraine