Sources and variations of tropospheric ozone in central Siberia: observations and model simulations

IOP Conference Series: Earth and Environmental Science, Climate change: causes, risks, consequences, problems of adaptation and management" 26-28 November 2019, Moscow, Russian Federatio

STUDY OF THE ACUTE TOXICITY AND COMBINED ACTION OF THE PESTICIDES ACREX AND ACTELIC

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Simulation of Probabilistic Evolution of Brugmansia Asteroid Family with the Yarkovsky Effect

Исследована динамическая эволюция молодого семейства Brugmansia, включающего в себя 4 астероида: (16598) Brugmansia, (190603) 2000 UV80, (218697) 2005 TT99 и 2006 SK443. При моделировании вероятностной эволюции астероидов учитывались ошибки определения орбит и влияние эффекта Ярковского. Рассмотрено три сценария эволюции семейства при различных значениях негравитационного ускорения, обусловленного влиянием эффекта Ярковского. Для каждой пары астероидов внутри семейства получены оценки возраста на основе анализа низскоскоростных сближений астероидов и минимальных значений метрики Холшевникова.Currently four members of the Brugmansia asteroid family are known: (16 598) Brugmansia, (190603) 2000 UV80, (218697) 2005 TT99, and 2006 SK443. We carried out a research of the probabilistic evolution of this asteroids, taking into account the Yarkovsky effect. We considered three scenarios of family evolution for different values of non-gravitational acceleration due to the Yarkovsky effect. We obtained age estimations based on the analysis of close and slow encounters and the minimum values of the Kholshevnikov metric for each pair of asteroids within the family.Работа выполнена при поддержке Министерства науки и высшего образования Российской Федерации, тема FEUZ-2020-0038

Investigation of the dynamic evolution of Hobson asteroid family

Обнаружено 11 новых членов семейства астероидов Hobson: (537249) 2015 HM190, 2007 EH116, 2007 HC54, 2008 WV149, 2010 GN203, 2011 SU302, 2015 FV225, 2015 HV138, 2015 OP104, 2015 PM156, 2019 PS30. Для всех астероидов семейства получены оценки скорости дрейфа большой полуоси, обусловленные эффектом Ярковского, радиусов сфер Хилла и вторых космических скоростей. Проведено моделирование динамической эволюции астероидов с учетом эффекта Ярковского. Получены оценки возраста пар астероидов, входящих в семейство, на основе результатов моделирования. Возраст семейства астероидов Hobson составляет около 400 тыс. лет.We have found 11 new members of the Hobson asteroids family: (537249) 2015 HM190, 2007 EH116, 2007 HC54, 2008 WV149, 2010 GN203, 2011 SU302, 2015 FV225, 2015 HV138, 2015 OP104, 2015 PM156, 2019 PS30. We estimated the Yarkovsky semimajor axis drift rate, the Hill sphere’s radii, and the escape velocity for all asteroids of the family. Simulation of the dynamic evolution of asteroids with allowance for the Yarkovsky effect has been carried out. Based on the simulation results, estimates of the asteroid pairs’ age included in the amily are obtained. The age of the Hobson asteroid family is about 400 kyr.Работа выполнена при поддержке Министерства науки и высшего образования Российской Федерации, тема FEUZ-2020-0038

Search for New Possible Members of Young Asteroid Families

Выполнен поиск новых членов молодых семейств астероидов с помощью метрик Холшевникова. Обнаружено 8 новых членов семейства астероидов Emilkowalski, 6 новых членов семейства астероидов Nicandra и 19 новых членов семейства астероидов Schulhof.We searched for new members of three young asteroid families by calculating the Kholshevnikov metrics. We found 8, 6, and 19 new members of the Emilkowalski, Nicandra, and Schulhof asteroid families, respectively.Работа выполнена при поддержке Министерства науки и высшего образования Российской Федерации, тема FEUZ-2020-0038

Polymorphic phase transitions and ferroelectric properties in β-glycine single crystals and micro islands

The research was carried out using equipment of Ural Center for Shared Use "Modern Nanotechnologies" Ural Federal University with the financial support by the Government of the Russian Federation (Resolution 211, Contract 02.A03.21.0006). The reported study was funded by RFBR according to the research project № 18-32-00390

Assessment of Feather Hydrolysate from Thermophilic Actinomycetes for Soil Amendment and Biological control Application, Int

ABSTRACT: Protein-rich hydrolysate from feather waste was obtained using a mixed culture of selected thermophilic actinomycete strains, and was tested for possible application as soil amendment and biological control agent. For this purpose, a 4 months laboratory experiment was carried out using two types of urban soils (Sofia, Bulgaria): native park soil and anthropogenic soil. The effect of the obtained hydrolysate on some soil parameters (pH, some enzyme activities and microbial activity), seed germination and ryegrass growth, and activity against some plant pathogenic fungi was studied. The results demonstrated that soil enrichment with the organic solution in low concentrations exerted a positive effect on soil urease and microbial activity, seed germination and ryegrass growth, and this trend was better expressed in the anthropogenic soils. Feather hydrolysate showed good activity against plant pathogenic fungi Fusarium solani, Fusarium oxysporum, Mucor sp. and Aspergillus niger. Produced antifungal compounds were isolated and partially characterized as amphiphilic peptides. To the best of our knowledge, antifungal peptides produced by Thermoactinomyces sp. have not been reported. Therefore, the feather hydrolysate obtained by means of the mixed culture of Thermoactinomyces strains has potential to be used as alternative organic amendment for restoration of contaminated soils and for accelerating ryegrass growth. It could successfully used also for as biocontrol agent applicable to crop plant soil

Cingulin Binds to the ZU5 Domain of Scaffolding Protein ZO-1 to Promote Its Extended Conformation, Stabilization, and Tight Junction Accumulation

Zonula occludens-1 (ZO-1), the major scaffolding protein of tight junctions (TJs), recruits the cytoskeleton-associated proteins cingulin (CGN) and paracingulin (CGNL1) to TJs by binding to their N-terminal ZO-1 interaction motif. The conformation of ZO-1 can be either folded or extended, depending on cytoskeletal tension and intramolecular and intermolecular interactions, and only ZO-1 in the extended conformation recruits the transcription factor DbpA to TJs. However, the sequences of ZO-1 that interact with CGN and CGNL1 and the role of TJ proteins in ZO-1 TJ assembly are not known. Here, we used glutathione-S-transferase pulldowns and immunofluorescence microscopy to show that CGN and CGNL1 bind to the C-terminal ZU5 domain of ZO-1 and that this domain is required for CGN and CGNL1 recruitment to TJs and to phase-separated ZO-1 condensates in cells. We show that KO of CGN, but not CGNL1, results in decreased accumulation of ZO-1 at TJs. Furthermore, ZO-1 lacking the ZU5 domain showed decreased accumulation at TJs, was detectable along lateral contacts, had a higher mobile fraction than full-length ZO-1 by fluorescence recovery after photobleaching analysis, and had a folded conformation, as determined by structured illumination microscopy of its N-terminal and C-terminal ends. The CGN-ZU5 interaction promotes the extended conformation of ZO-1, since binding of the CGN-ZO-1 interaction motif region to ZO-1 resulted in its interaction with DbpA in cells and in vitro. Together, these results show that binding of CGN to the ZU5 domain of ZO-1 promotes ZO-1 stabilization and accumulation at TJs by promoting its extended conformation

THE PHYSICO-MECHANICAL PROPERTIES OF THE GRANULATED FOAM -GLASS – FOAM-ZEOLITE AND LIGHT CONCRETE BASED ON THEM

This article presents the results of research of physical and mechanical properties of granulated foam glass – panoceania and lightweight concretes (foam glass concrete) based on them. Comparative analysis of physico-mechanical characteristics of foam-glass-concrete and cellular concrete autoclaved showed that at equal density have the advantage of wall materials from foam-glass-concrete in terms of strength, heat and frost

Semi-contact AFM for surface characterisation in case of holographic PDADMAC films and functionalised paper

The research was carried out using equipment of the Ural Center for Shared Use "Modern Nanotechnologies" Ural Federal University. A. Vinogradov acknowledges the scholarship of the President of the Russian Federation (SP-1158.2019.1): S. Vasilev acknowledges the mobility programs of the Institute of Natural Sciences and Mathematics for the Young scientists in the 2018 year