Evaluation of commercial traits in the accessions of Medicago sativa L. from Asia Minor

Background. One of the main tasks of the present-day breeding practice is the development of high-yielding intensive-type fodder crop cultivars for indoor feeding of livestock. Alfalfa, as a productive and high-protein crop, deserves special attention. An offer of new breeding sources would enable breeders to broaden the diversity of alfalfa cultivars. Objective. The present study involved 65 local varieties and wild accessions of alfalfa from Turkey preserved in the VIR collection. Material and methods. Yekaterinino Experiment Station of VIR (Tambov Province) was chosen as the research site. Evaluation of the alfalfa collection was carried out in 2015–2017, using the methods developed at VIR for fodder crop research targeted at such traits as green biomass yield, seed productivity, and leafiness. The cultivar ‘Marusinskaya 425’ was used as the reference. Results and conclusions. In 2015, four accessions were identified as promising for their green matter yield and seed productivity: local varieties k-3373 and k-3378 from Konya Province, k-5992 from Isparta Province, and k-6116 from Sivas Province. In 2016, three accessions exceeded the reference in the yield of green matter, and three accessions had higher seed productivity. Eight accessions surpassed the reference in leafiness. In 2017, only one accession, k-6009 (Kayseri Province), significantly exceeded the reference in green matter yield. Nine accessions were selected for their high seed yield. The maximum seed productivity was observed in the accession k-3379 (Konya). Leafiness was notably higher than the reference’s in 15 accessions. The average for three years shows that none of the accessions credibly surpassed the reference in green matter yield. Four accessions had higher seed productivity than the reference. According to the three-year average, 11 accessions exceeded the reference in leafiness. All in all, in the three years of study, the accessions k-3373, k-3378 and k-3379 (Konya) were selected for high green matter yield and seed productivity. High seed productivity and leafiness, with satisfactory green matter yield, were registered in the accession k-5992 (Isparta). The accession k-6009 (Kayseri) significantly exceeded the reference in green matter yield, but demonstrated low seed productivity and poor leafiness. The place of origin for the identified local accessions had been Central Anatolia, with its continental climate. These accessions are valuable breeding sources with noteworthy commercial traits. Alfalfa from Asia Minor can be recommended for use in breeding practice, targeted at the development of new high-yielding intensive-type cultivars

Forming of Students Valeological Culture in Studying of Natural-Science Disciplines (by Example of Physics Course)

The article is devoted to the problem of valeological culture education in the process of studying of natural-science disciplines at school. The importance of developing skills aimed at the development of a healthy lifestyle in the process of realization of intersubject links on the example of studying of a school course of physics is noted. It is shown that in explaining to students the physical laws of nature, phenomena and processes the most appropriate is the use of specific examples, including the area of valeology, which not only broaden pupils’ outlook, but also affect the development of their culture of health. The article focuses on pedagogical techniques, allowing the teacher to develop individual abilities of students and create an atmosphere of success for each student both in the classroom and in extracurricular time in self-preparation for classes. Different forms of work are described that students can fulfill implementing interdisciplinary links between valeology and physics: self-dependent development of physics tasks using valeology material, writing essays, making presentations, preparing reports, making visual teaching aids, etc. It is concluded that this work allows the learner not only to accumulate knowledge about health care, but also to apply them in practice

Support of Research Activities of Future Teachers through Organization of Tutoring

The attitude of future teachers to research activities during their studies at the university is analyzed on the example of Ishim Pedagogical Institute named after P. P. Ershov. Features of support of students at the choice of research trajectories are considered. Students’ attitude to scientific research is characterized. Necessary conditions for effective work of students on scientific projects are revealed. The necessity of introduction of scientific tutorship since the first year of training, and also attraction of students of senior courses who achieved certain scientific results as tutors is shown. The article deals with the tutor’s activity as a consultant, mentor and organizer of the student’s independent activity in the organization of scientific research. The article describes the experience of the organization of tutoring on the example of a pedagogical university, where not only teachers work as mentors, but also so-called “academic consultants” do - senior students who have their own positive experience in conducting research. The studies were conducted with the participation of 200 respondents from the number of full-time students from 1 to 5 course. In the course of research the main directions of activization of research activity of students are found out

Dialogue between Journalistic Generations as a Factor in the Formation of the Students- Communicative and Cultural Memory

В статье анализируется роль диалога журналистских поколений как фактора формирования коммуникативно-культурной памяти студентов. Методы и методология разработаны на основании работ Я. Ассмана, М. Халбвакса, М. Ю. Лотмана и др. Специфика исследования заключается в том, что в его основе лежит обучающий проект «Диалог журналистских поколений». Параллельно ему в течение 2017–2020 гг. проводилось анкетирование его 420 участников. Результаты исследования были обработаны соответствующими статистическими методами. Они помогли дать ответы на ряд важных вопросов, а также привели нас к выводу о том, что межпоколенческий диалог журналистов способствует социализации и формированию идентичности учащейся молодежи.In this article the authors analyze the role of dialogue between journalistic generations as a factor in the formation of the students - communicative and cultural memory. Methods and methodology are developed on the basis of the works of J. Assman, M. Halbwax, Yu. Lotman and others. The specificity of the study lies in the fact that it is based on the training project “Dialogue of Journalistic Generations”. Parallel to it during 2017-2020 questioning of its 420 participants was conducted. The results of the study were processed by appropriate statistical methods. They helped to get answers to a number of important questions, and also led us to the conclusion that the intergenerational dialogue of journalists promotes socialization and the formation of the identity of students

Mechanistic TAP study on the syngas generation by partial oxidation of methane over a Pt/PrCeZrO and Pt/GdCeZrO catalyst

internationalInternational audienc

MELTED BUTTER TECHNOLOGY DEVELOPMENT

Summary. Melted butter is made from dairy butter by rendering the fat phase. It has specific taste and aroma, high-calorie content and good assimilability. Defects of butter which appeared during the storage causes by the development of microbiological processes or by the chemical oxidation. On the development of these processes influence quality and composition of fresh butter, its physical structure, content of the increased amount of gas phase and content of heavy metals, storage conditions. Microbiological spoilage of butter occurs generally due to damage of plasma which is good environment for the development of microorganisms. Defects of microbiological origin include: unclean, sour, moldy, yeasty, cheesy, bitter taste. Defects of test and smell chemical origin are formed due to hydrolytic digestion of lipids. It's prevailed at long storage of butter in the conditions of freezing temperatures. It's picked out the following main processes of spoiling: souring, acidifying and sallowness. Often these processes take place simultaneously.It has been investigated melted butter with lactated additive. The latter improves the microbiological and toxicological safety, prolongs the storage condition of the products. Technological efficiency of the additives is achieved by a multilayer products formation from the inactive bound water, preventing microorganisms growth and by the barrier layer with lactate inhibiting hydrolytic reactions. Oil samples were obtained with the batch-type butter maker application, then they were melted and after that lactated additive were supplemented. It has been studied organoleptic and physico-chemical indices of the melted butter samples. The fatty-acid composition of melted butter were studied. Comparative analysis of fatty-acid composition of cow's milk fat and produced melted butter has shown their similarity. Also in the last sample there is increased weight fraction of linoleic and linolenic acids. The obtained experimental data for melted butter allow to conclude about its high quality

PRODUCTION OF MELTED BUTTER WITH INCREASED STORAGE STABILITY

The paper presents data on melted butter preservation research. It has been conducted analysis of the components applied and their positive impact on the butter storage. To last belong sodium chloride staying the formation of free fatty acids and also additionally contributable lactatecontaining additive. Laboratory studies were carried out in a certain way. A half of each batch of butter were remelted in two versions with the addition of sodium chloride up to 4 % by weight of the butter to precipitate proteins and without the addition of the salt. Food additive with the properties of animal origin products shelf life increase were supplemented into the melted butter. The rest manufacturing operations were performed by the traditional method of melted butter production. It was evaluated the organoleptic characteristics and investigated fat phase acidity and fat peroxide number in the samples of melted butter with a month interval. Also were determinated the transparency of test samples. All test samples in molten state were transparent, they didn't contain suspended particles. Results of the score were summarized and on the base of the total assessment were determinated quality of the product. The carried out researches of samples of melted butter have shown the full conformance with requirements of GOST R 52971 on physicochemical parameters: the weight fraction of fat – 99 %, the weight fraction of moisture – 1 %. It was established that in the samples without food additive maximum values of acid number were received in a month of storage; and in the samples with additive - in 3 months of storage. It was determinated that in samples of butter rented without salting peroxide number increases more intensively than in other test samples. It has been determined increased storage stability of melted butter with salt and food additive

Mechanistic TAP study on the syngas generation by partial oxidation of methane over a Pt/PrCeZrO and Pt/GdCeZrO catalyst

internationalInternational audienc

Tap study of the impact of the oxidation state of Pt/PrCeZrO and Pt/GdCeZrO catalysts on their reactivity in the partial/deep oxidation of methane

Gubanova, Elena L. Sadykov, Vladislav A. van Veen, Andre C. Mirodatos, ClaudeThe temporal analysis of products (TAP) technique coupled with the oxygen TPD was used to elucidate the effects of the Pt-supported fluorite-like doped ceria-zirconia oxide chemical composition and the type of pretreatment on their oxygen bonding strength, mobility, and reactivity as related to catalytic properties in the partial oxidation of methane into synthesis gas. A rapid evolution of hydrogen under CH4 pulse observed for oxidized catalysts agrees with the direct route of the methane selective oxidation into syngas. This route is favored by the Pt-support interaction and a moderate bonding strength of surface oxygen species along with a high lattice oxygen mobility