Новый исходный материал для создания перспективных сортов дыни

Relevance. The creation of varieties with a complex of economically valuable traits, resistant to biotic and abiotic environmental factors, is the main direction in melon breeding. The market for vegetables and melons and gourds is very dynamic, the demands for varieties are constantly changing, therefore, it is necessary to introduce new varieties with high taste and commercial qualities, as well as capable of producing high yields in a changing climate. The aim of the work is to produce a new melon starting material for use in the breeding process.Materials and methods. At the Bikovskaya cucurbits breeding experimental station – branch of the Federal state budgetary scientific institution "Federal scientific vegetable center", research was carried out from 2018 to 2020. The object of research is samples from the collection of VIR, foreign and domestic selection, hybrid combinations obtained as a result of intervarietal hybridization. Collection samples of melon were studied in the nursery of the source material: 84 samples from the VIR collection, 26 samples of domestic and foreign selection were studied.Results. As a result of the research, samples of melon with economically valuable traits were identified that meet the requirements of selection. Paired crosses with zoned varieties of local selection were carried out with them. As a result of hybridization, hybrid combinations F1 were obtained, from which the best ones were selected for further breeding work. The obtained collection samples and hybrid combinations were evaluated in terms of taste, yield, resistance to environmental abiofactors, dry matter content, large-fruited, attractive color of the fruit and pulp As a result received a new source material for the selection of new varieties and hybrids of melons with valuable economic traits. The resulting hybrid combinations of F1 melon were tested against an infectious background. Hybrid combinations with the best performance will be further studied in a breeding nursery.Актуальность. Создание сортов, обладающих комплексом хозяйственно ценных признаков, устойчивых к биотическим и абиотическим факторам среды, является главным направлением в селекционной работе по дыне. Рынок овощной и бахчевой продукции очень динамичен, запросы на сорта постоянно меняются, поэтому требуется внедрение новых сортов, обладающих высокими вкусовыми и товарными качествами, а также способных давать высокие урожаи в условиях изменяющегося климата. Цель работы – создать новый исходный материал дыни, обладающий параметрами, необходимыми селекционеру согласно разработанной модели сорта.Материалы и методы. Объект исследования – образцы из коллекции ВИР, зарубежной и отечественной селекции, гибридные комбинации, полученные в результате межсортовой гибридизации. Исследования проводили на Быковской селекционной опытной станции – филиале ФГБНУ ФНЦО в 2018-2020 годах. В питомнике исходного материала изучали коллекционные образцы дыни: 84 образца из коллекции ВИР, 26 образцов отечественной и иностранной селекции. Оценивали полученные коллекционные образцы и гибридные комбинации по вкусовым качествам, содержанию сухого вещества, урожайности, устойчивости к абиофакторам среды, крупноплодности, привлекательной окраске плода и мякоти.Результаты. Выделены образцы дыни с хозяйственно ценными признаками, которые отвечают требованиям селекции. Провели парные скрещивания с районированными сортами местной селекции. В результате гибридизации получены гибридные комбинации F1, из которых отобраны лучшие для дальнейшей селекционной работы. В итоге исследований получен новый исходный материал для селекции новых сортов и гибридов дыни с ценными хозяйственными признаками. Полученные гибридные комбинации F1 дыни были испытаны на инфекционном фоне. Гибридные комбинации с лучшими показателями в дальнейшем будут изучены в селекционном питомнике

Challenges in QCD matter physics - The Compressed Baryonic Matter experiment at FAIR

Substantial experimental and theoretical efforts worldwide are devoted to explore the phase diagram of strongly interacting matter. At LHC and top RHIC energies, QCD matter is studied at very high temperatures and nearly vanishing net-baryon densities. There is evidence that a Quark-Gluon-Plasma (QGP) was created at experiments at RHIC and LHC. The transition from the QGP back to the hadron gas is found to be a smooth cross over. For larger net-baryon densities and lower temperatures, it is expected that the QCD phase diagram exhibits a rich structure, such as a first-order phase transition between hadronic and partonic matter which terminates in a critical point, or exotic phases like quarkyonic matter. The discovery of these landmarks would be a breakthrough in our understanding of the strong interaction and is therefore in the focus of various high-energy heavy-ion research programs. The Compressed Baryonic Matter (CBM) experiment at FAIR will play a unique role in the exploration of the QCD phase diagram in the region of high net-baryon densities, because it is designed to run at unprecedented interaction rates. High-rate operation is the key prerequisite for high-precision measurements of multi-differential observables and of rare diagnostic probes which are sensitive to the dense phase of the nuclear fireball. The goal of the CBM experiment at SIS100 (sqrt(s_NN) = 2.7 - 4.9 GeV) is to discover fundamental properties of QCD matter: the phase structure at large baryon-chemical potentials (mu_B > 500 MeV), effects of chiral symmetry, and the equation-of-state at high density as it is expected to occur in the core of neutron stars. In this article, we review the motivation for and the physics programme of CBM, including activities before the start of data taking in 2022, in the context of the worldwide efforts to explore high-density QCD matter.Comment: 15 pages, 11 figures. Published in European Physical Journal

Clinical features of post-COVID-19 period. Results of the international register “Dynamic analysis of comorbidities in SARS-CoV-2 survivors (AKTIV SARS-CoV-2)”. Data from 6-month follow-up

Aim. To study the clinical course specifics of coronavirus disease 2019 (COVID-19) and comorbid conditions in COVID-19 survivors 3, 6, 12 months after recovery in the Eurasian region according to the AKTIV register. Material and methods.The AKTIV register was created at the initiative of the Eurasian Association of Therapists. The AKTIV register is divided into 2 parts: AKTIV 1 and AKTIV 2. The AKTIV 1 register currently includes 6300 patients, while in AKTIV 2 — 2770. Patients diagnosed with COVID-19 receiving in- and outpatient treatment have been anonymously included on the registry. The following 7 countries participated in the register: Russian Federation, Republic of Armenia, Republic of Belarus, Republic of Kazakhstan, Kyrgyz Republic, Republic of Moldova, Republic of Uzbekistan. This closed multicenter register with two nonoverlapping branches (in- and outpatient branch) provides 6 visits: 3 in-person visits during the acute period and 3 telephone calls after 3, 6, 12 months. Subject recruitment lasted from June 29, 2020 to October 29, 2020. Register will end on October 29, 2022. A total of 9 fragmentary analyzes of the registry data are planned. This fragment of the study presents the results of the post-hospitalization period in COVID-19 survivors after 3 and 6 months. Results. According to the AKTIV register, patients after COVID-19 are characterized by long-term persistent symptoms and frequent seeking for unscheduled medical care, including rehospitalizations. The most common causes of unplanned medical care are uncontrolled hypertension (HTN) and chronic coronary artery disease (CAD) and/or decompensated type 2 diabetes (T2D). During 3- and 6-month follow-up after hospitalization, 5,6% and 6,4% of patients were diagnosed with other diseases, which were more often presented by HTN, T2D, and CAD. The mortality rate of patients in the post-hospitalization period was 1,9% in the first 3 months and 0,2% for 4-6 months. The highest mortality rate was observed in the first 3 months in the group of patients with class II-IV heart failure, as well as in patients with cardiovascular diseases and cancer. In the pattern of death causes in the post-hospitalization period, following cardiovascular causes prevailed (31,8%): acute coronary syndrome, stroke, acute heart failure. Conclusion. According to the AKTIV register, the health status of patients after COVID-19 in a serious challenge for healthcare system, which requires planning adequate health system capacity to provide care to patients with COVID-19 in both acute and post-hospitalization period

New source material for the creation of perspective varieties of melon

Relevance. The creation of varieties with a complex of economically valuable traits, resistant to biotic and abiotic environmental factors, is the main direction in melon breeding. The market for vegetables and melons and gourds is very dynamic, the demands for varieties are constantly changing, therefore, it is necessary to introduce new varieties with high taste and commercial qualities, as well as capable of producing high yields in a changing climate. The aim of the work is to produce a new melon starting material for use in the breeding process.Materials and methods. At the Bikovskaya cucurbits breeding experimental station – branch of the Federal state budgetary scientific institution "Federal scientific vegetable center", research was carried out from 2018 to 2020. The object of research is samples from the collection of VIR, foreign and domestic selection, hybrid combinations obtained as a result of intervarietal hybridization. Collection samples of melon were studied in the nursery of the source material: 84 samples from the VIR collection, 26 samples of domestic and foreign selection were studied.Results. As a result of the research, samples of melon with economically valuable traits were identified that meet the requirements of selection. Paired crosses with zoned varieties of local selection were carried out with them. As a result of hybridization, hybrid combinations F1 were obtained, from which the best ones were selected for further breeding work. The obtained collection samples and hybrid combinations were evaluated in terms of taste, yield, resistance to environmental abiofactors, dry matter content, large-fruited, attractive color of the fruit and pulp As a result received a new source material for the selection of new varieties and hybrids of melons with valuable economic traits. The resulting hybrid combinations of F1 melon were tested against an infectious background. Hybrid combinations with the best performance will be further studied in a breeding nursery

THE ELECTRICAL PROPERTIES OF NON-LINEAR FERROELECTRIC CERAMICS WITH THE PEROVSKITE STRUCTURE

Les paramètres électriques des matériaux ferroélectriques présentant des propriétés fortement non linéaires, utilisés pour la fabrication des capacités non linéaires tels que les "variconds" ont été étudiés. La possibilité de réaliser des variconds en couches minces pour les faibles tensions est envisagée. Enfin on trouvera des exemples d'application possible des variconds.The electrical parameters of ferroelectric materials with pronounced non-linear properties used for the manufacture of capacitive non-linear components such as variconds have been investigated. Feasibility of film variconds designed for low control voltages has been shown. Examples of possible applications of variconds are given

Atypical depression in bipolar affective disorder: a clinical case study

Atypical depression (AtD) is contrasted with classical endogenous melancholic depression and is characterized by the presence of its uncharacteristic abnormalities, but the list of the latter varies from individual symptoms (increased appetite, weight gain, drowsiness, weakness, and anxiety) and their concurrence to syndromes accompanying depression (anxiety-phobic, obsessive-compulsive, panic attacks, derealization-depersonalization, hypochondriacal syndrome). In accordance with the DSM-5 diagnostic criteria, AtD is a symptom complex that includes mood reactivity and at least two of the following symptoms: hyperphagia, hypersomnia, lead-palsy, and personality sensitivity. AtD has been described within a variety of disorders: recurrent depressive disorder, bipolar affective disorder, dysthymia, cyclothymia, and psychogenic depression. The paper describes a clinical case of atypical depressive syndrome within the framework of type 2 bipolar disorder in a 51-year-old patient. AtD was concurrent with dermatitis herpetiformis (Dühring's disease) in some depressive episodes; it was accompanied by various somatic complaints in other cases. The latest episode of AtD occurred during the COVID-19 pandemic and included obvious reactive anxiety-phobic disorders. A detailed clinical and psychopathological analysis of history data, mental state, and ongoing therapy was carried out, which clearly reflects difficulties in the differential diagnosis of AtD and the use of adequate treatment

Cognitive impairments in patients with prior ischemic stroke

The authors give the data available in the literature on and the results of their studies of the epidemiology, risk factors, pathogenesis, diagnosis, and treatment of poststroke cognitive impairment (PSCI). The latter occurs in 35—83% of patients; poststroke does in 6—40%. Different mechanisms of PSCI are under discussion; these are a single infarct in a strategic area of the brain; multiple focal lesion of the brain substance in restrokes; cerebral white-matter lesion as leukoaraiosis; the presence of concomitant Alzheimer’s disease (AD). The capacities for the diagnosis of concomitant AD in PSCI are analyzed. The treatment of the latter involves secondary prevention of stroke and specific therapy for cognitive, emotional-affective, and behavioral disorders. The experience with akatinol memantine used in postischemic dementia has been found to be positive