The Ferromagnetism in the Vicinity of Lifshitz Topological Transitions

We show that the critical temperature of a ferromagnetic phase transition in a quasi-two-dimensional hole gas confined in a diluted magnetic semiconductor quantum well strongly depends on the hole chemical potential and hole density. The significant variations of the the Curie temperature occur close to the Lifshitz topological transition points where the hole Fermi surface acquires additional components of topological connectivity due to the filling of excited size-quantization subbands. The model calculations demonstrate that the Curie temperature can be doubled by a small variation of the gate voltage for the CdMnTe/CdMgTe quantum well based device

New sources of agriculturally valuable traits in hemp from the VIR collection for cultivar development

Background. Modern hemp cultivation and processing are targeted at the production of textiles for various purposes, hurds, seeds and oil for functional food and pharmaceutical use. The import of textiles to Russia has been observed to grow continuously, reaching $8.96 billion in 2016–2017. The present industrial hemp production in Russia is still a source of textile yarn, integrated in the industrial turnover of goods in the Russian Federation. There are 27 cultivars and hybrids of industrial hemp for universal and dual use listed in the Russian Register of Breeding Achievements. However, there are no registered cultivars specifically earmarked to produce seeds or high-quality oil with improved fatty acid profile for production of functional food ingredients. Hemp genetic resources, as a reserve stock for crop improvement in the world’s plant breeding centers, are quite scanty and genotypically similar, and their major useful traits have practically not been evaluated. Thus, accumulation of hemp germplasm variable in traits, its evaluation and screening to identify sources of such characters as earliness and high seed yield should be prioritized for further progress in the development of new cultivars on a broader genetic base. Materials and methods. Accessions of Cannabis sativa L. of the Mid-Russian and Northern ecotypes were studied under the edaphoclimatic conditions of Russia’s northwest at Pushkin and Pavlovsk Laboratories of VIR with the purpose to assess the following traits: ripening of female and male plants 100 days after sowing (scores), seed yield per female plant, technical plant lengths, and correlations between plant sex types. Results and conclusions. The accessions k-528 (Tyumen), k-413 (Kazakhstan), k-313 (Kirov), k-151 (Mari), k-315 (Kirov), k-316 (Kirov), k-317 (Kirov), and k-132 (Ukraine) were characterized as early-ripening (female plants). Accessions similar in earliness of female plants, but differing in earliness of male plants (early, medium early and late) were identified. Medium and late male plants, as well as late female ones, are needed for the development of CBD-rich conventional dioecious cultivars. The accessions k-88, k-317 and k-351 were selected for earliness in female plants and medium earliness in male ones as well as for comparatively high seed yield per plant; they may be used in breeding programs to develop cultivars specifically for palatable seeds, which would make high-quality functional food ingredients due to their polyunsaturated fatty acid (PUFA) profile

Yakutia National-Cultural Associations in Socio-Political History of Region in Late 20th - early 21st Centuries

The history of creation and development of national-cultural associations of the peoples of Yakutia on the turn of 20th-21st centuries is described. It is noted that the preservation of the stability of ethnic relations in the multinational republic is the most important task of domestic policy carried out by local authorities. Information about the most important and most active public organizations representing different ethnic groups in the Republic of Sakha (Yakutia) is provided. The author discusses the Yakut national organizations “Sakha omuk” and “Sakha keskile,” played a significant role in the political development of Yakutia in 1990-ies. The article highlights the activities of associations of indigenous peoples of the North. The major public enterprises of the Russian population of the Republic and the Diaspora of various ethnic groups are described. It is shown that, despite the different scales and different degree of influence, national-cultural associations of the peoples of Yakutia played a significant role in the development of statehood of the Republic. The recognition of the sovereignty of the Republic of Sakha (Yakutia), as well as the preservation of interethnic peace and unity in it are the result of the active position of independent public-political organizations. It is noted that national-cultural communities and associations remain an important and stable part in the political processes in the Republic of Sakha (Yakutia)

From patriotism to political totalitarianism: the role of collective narcissism

Background. Patriotic education is carried out in many countries, being an integral part of the process of socialization of the younger generation. At the same time, patriotism is often used by autocracies to maintain power and total state control over all aspects of public and private life. What is the socio-psychological aspect of this possible transformation? Objective. The aim of the study was to test the model of the relationship between patriotism, nationalism, rightwing authoritarianism and political totalitarianism, as well as to examine the role of collective narcissism in these relationships. We hypothesized that patriotism is not directly related to totalitarianism, this connection is mediated by nationalism and right-wing authoritarianism, while patriotism and nationalism are connected only under the condition of a high level of collective narcissism (i.e., collective narcissism demonstrates the effect of moderation). Design. The study of the role of collective narcissism in the relationship between patriotism, nationalism, rightwing authoritarianism and political totalitarianism was carried out in 2018 on a gender-balanced sample of residents of Russia (N — 232) aged 16 to 61 (M — 28.5; SD — 10.2). Reliable and valid tools were used for measurements: cultural patriotism and nationalism (Grigoryan 2013; Grigoryan, Lepshokova, 2012), collective narcissism (Golec de Zavala et al., 2009), right-wing authoritarianism (Bizumic, Duckitt, 2018). A cross-sectional single-sample correlation design was applied using data from a socio-psychological survey. The data was collected in 2018 through an online survey conducted by an independent commercial research company as a result of a survey of their own panel of respondents. The survey was conducted using various Likert scales. All scales that had not previously been translated into Russian were adapted by double translation and cognitive interviews using the “think-aloud” technique (Batkhina, Grigoryev, 2019). Results. The hypotheses that were put forward were confirmed. It was found that (1) patriotism is not directly related to totalitarianism: nationalism and authoritarianism mediated the relationship between patriotism and totalitarianism, and nationalism mediated the relationship between patriotism and authoritarianism; (2) patriotism is positively associated with nationalism only if the level of collective narcissism is high; (3) nationalism is positively associated with authoritarianism and totalitarianism, and authoritarianism with totalitarianism. Conclusions. Collective narcissism may reflect the process of compensating for low self-esteem and lack of control over their lives in people, and generate belief in an exalted image of the in-group and its right to special recognition. Subsequently, this helps to use patriotism as a basis for supporting political totalitarianism. Nationalism and authoritarianism can carry an instrumental function in this process acting as certain strategies for the implementation of the motivational orientation set by collective narcissism

Chromatography-mass spectrometry studies on the metabolism of synthetic cannabinoids JWH-018 and JWH-073, psychoactive components of smoking mixtures

The lack or low content of their native compounds in urine requires detailed identification of their metabolites, which are excreted with urine and are present in blood. Using gas and liquid chromatography-mass spectrometry, we identified a series of metabolites in urine samples from humans and ratsyesBelgorod State Universit