Reproductive attitudes: Gender aspect

The paper actualizes the problem of studying fertility issues. The study aims to determine the reproductive attitudes of men and women. The subject of the study is the opinion of men and women about the ideal number of children they would like to have provided that all the necessary conditions are available and the number of children that they expect in their current living conditions. The authors put forward a hypothesis about the multifaceted significance of factors that positively influence the decision to have a child and barriers to fertility among men and women. The main research instrument is a sociological survey (online questionnaire). The pilot survey was conducted in the period 2022-2023 among citizens of reproductive age, who work or have work experience. The final sample included 829 respondents. The paper presents some research findings that made it possible to assess reproductive attitudes, identify the main barriers that impede the decision to have a child and significant factors influencing this decision by gender. The conclusion is substantiated about the need for further re-search into the reproductive attitudes of citizens depending on different criteria

Names of zero suffixation in Russian proverbs and sayings

© 2020 Wanjun et al.; Licensee Lifescience Global. This is an open access article licensed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited. The problem statement is to study zero exponents' text-forming function in texts of different genres and styles. The object of the study is the usual names of zero suffixation in the Russian language and the features of their functioning in the works of small folklore genres - proverbs and sayings. The purpose of the paper is to identify the main word-formation types of names of zero suffixation presented in proverbs and sayings, to evaluate their role in organizing the literary space of utterances. Leading research methods are theoretical analysis of scientific and educational literature on the topic, method of continuous sampling, language, speech and text analysis, structural and semantic analysis of language material, comparative and statistical methods, and lesson observation. The article reveals the frequency of the use of certain word-formation types of names of zero suffixation (deverbal, denominal, adjective-based) in individual proverbs and sayings, points out the frequency of unprefixed names of zero suffixation, shows the features of compatibility of deverbatives, their place in the meaningful and rhythmic construction of proverbs and sayings. The figural and expressive properties of these formations are considered. The applied significance of the study and the possibility of using the results for linguodidactic purposes of teaching Russian as a native and as a foreign language are emphasized

Effect of Doping of Plant Raw-Based Activated Carbons with Iron Nanoparticles on Their Catalytic Activity in the Reaction of Propane Dehydrogenation

Abstract: A method is developed for creating highly active and selective catalysts for associated petroleum gas cracking which is based on use of activated carbons derived from renewable sources of plant raw materials (Jerusalem artichoke, false flax, rape, wheat) modified with nanosized iron particles obtained in reverse-micellar solutions. It is shown that carbon matrices modified with iron nanoparticles possess а high catalytic activity with the maximum conversion attained at 900 К and a high selectivity for olefin formation (about 95%). © 2020, Pleiades Publishing, Ltd

Carbon Monoxide Hydrogenation over Gd(Fe/Mn)O3 Perovskite-Type Catalysts

Abstract: Catalytic properties of GdFeO3 and GdMnO3 perovskite-type oxides in CO hydrogenation processes is conducted. Complex oxides Gd(Fe/Mn)O3 are synthesized by the sol–gel technology and characterized by X-ray diffraction, temperature-programmed reduction, and scanning electron microscopy. It is found that the iron-containing catalyst has fairly high catalytic characteristics; therefore, it provides lower temperatures of carbon monoxide hydrogenation. The presence of manganese in the catalyst leads to an increase in light olefin selectivity compared with the sample containing iron at the B-site. It is assumed that gadolinium cations are responsible for dissociative chemisorption, while iron and manganese cations are responsible for the formation of atomic hydrogen. The two catalysts exhibit resistance to carbon deposition. © 2019, Pleiades Publishing, Ltd

Effect of the Chemical and Phase Composition of Nanocrystalline Gadolinium Complex Oxides on the Propane Cracking Process

Abstract: Effect of the chemical composition and crystal structure type of gadolinium complex oxides on their catalytic activity is studied. It is shown that nanocrystalline powders Gd2Ti2O7, Gd2Zr2O7, and Gd2Hf2O7 form highly symmetrical face-centered сubic crystal structures having localized (in Gd2Ti2O7) and delocalized (in Gd2Zr2O7 and Gd2Hf2O7) oxygen vacancies. At the same time, low-symmetrical crystal structures are formed in Gd2(WO4)3 (the monoclinic structure) and Gd2(МоO4)3 (a mixture of monoclinic and rhombic structures). Catalytic runs show that formation of the cubic structure contributes to an increase in the degree of conversion of propane and causes a shift in cracking temperatures to lower values. Formation of this type of nanocrystalline oxides facilitates the dehydrogenation reaction with propylene selectivity up to 80% at temperatures up to 700 К. Formation of the mixture of monoclinic and rhombic structures in Gd2(МоO4)3 leads to a shift in the degree of conversion to the catalytic temperature range of 700–900 К, in which the dehydrogenation reaction predominates (80%). In the case of the monoclinic structure of Gd2(WO4)3 in the same cracking temperature ranges the process of degradation occurs in parallel; this decreases propylene selectivity to 50% and promotes an increase in the yield of ethylene to 30%. © 2020, Pleiades Publishing, Ltd

Induced pluripotent stem cell line, ICAGi001-A, derived from human skin fibroblasts of a patient with 2p25.3 deletion and 2p25.3-p23.3 inverted duplication

Skin fibroblasts from a patient with developmental delay and chromosome 2p25.3 deletion syndrome were reprogrammed into induced pluripotent stem cells (iPSCs) and the clonal stem cell line ICAGi001-A (iTAF9-11) was established. ICAGi001-A pluripotency was demonstrated in vitro by three germ layer differentiation capacity. This line is a good model for studying of the developmental delay and brain disorder