Ivan D. Sorokin, Vladimir I. Feldman, O. L. Mel’nikova, V. I. Pergushov, Daniil A. Tyurin, Mikhail Ya. Melnikov,
The reversible photoinduced transformations of 2,3-dimethyloxirane radical cations in freonic matrices at 77 K are related to the conversion between the cis- and trans-isomers of an open form and a cyclic form.
Tópico(s): Oxidative Organic Chemistry Reactions
2011 - Elsevier BV | Mendeleev Communications
Ivan D. Sorokin, Vladimir I. Feldman, O. L. Mel’nikova, V. I. Pergushov, Daniil A. Tyurin, Mikhail Ya. Melnikov,
The X-ray irradiation of 2,2-dimethyloxirane in freonic matrices at 77 K results in the trapping of a cyclic radical cation form, presumably, complexed with a matrix molecule, which transforms into a C-centered distonic radical cation under the action of light.
Tópico(s): Radical Photochemical Reactions
2011 - Elsevier BV | Mendeleev Communications
Bingyuan Han, А. Хорошилов, A. V. Tyurin, А. Е. Баранчиков, Mikhail Razumov, О. С. Иванова, К. С. Гавричев, В. К. Иванов,
Tópico(s): Thermal and Kinetic Analysis
2020 - Springer Science+Business Media | Journal of Thermal Analysis and Calorimetry
Ivan D. Sorokin, O. L. Mel’nikova, V. I. Pergushov, Daniil A. Tyurin, Vladimir I. Feldman, Mikhail Ya. Melnikov,
Tópico(s): Chemical Reactions and Mechanisms
2012 - Pleiades Publishing | High Energy Chemistry
Ilfat Z. Rakhmatullin, Sergey V. Efimov, Vladimir A. Tyurin, Marat Gafurov, Ameen A. Al‐Muntaser, Mikhail A. Varfolomeev, Vladimir V. Klochkov,
Nuclear magnetic resonance (NMR) approaches have unique advantages in the analysis of crude oil because they are non-destructive and provide information on chemical functional groups. Nevertheless, the correctness and effectiveness of NMR techniques for determining saturates, aromatics, resins, and asphaltenes (SARA analysis) without oil fractioning are still not clear. In this work we compared the measurements and analysis of high-resolution 13C NMR spectra in B0 ≈ 16.5 T (NMR frequency of 175 MHz) ...
Tópico(s): Hydrocarbon exploration and reservoir analysis
2020 - Multidisciplinary Digital Publishing Institute | Processes
Ilfat Z. Rakhmatullin, Sergey V. Efimov, Vladimir A. Tyurin, Ameen A. Al‐Muntaser, Alexander E. Klimovitskii, Mikhail A. Varfolomeev, Vladimir V. Klochkov,
High-resolution nuclear magnetic resonance (NMR) and Fourier transform infrared (FTIR) spectroscopy experiments were applied to obtain detailed information on the hydrocarbon chemistry of three light and three heavy crude oils. Quantitative fractions of aromatic molecules and functional groups constituting oil hydrocarbons were determined by 13C NMR spectroscopy and comparative analysis of the oil samples with different viscosity, origin and preliminary treatment. SARA composition and some important ...
Tópico(s): NMR spectroscopy and applications
2018 - Elsevier BV | Journal of Petroleum Science and Engineering
Anna A. Baranova, Alexey A. Chistov, Anton P. Tyurin, Igor A. Prokhorenko, Vladimir A. Korshun, Mikhail V. Biryukov, Vera A. Alferova, Yuliya V. Zakalyukina,
Antibiotics produced by symbiotic microorganisms were previously shown to be of crucial importance for ecological communities, including ants. Previous works on ant–actinobacteria symbiosis are mainly focused on farming ants, which use antifungal microbial secondary metabolites to control pathogens in their fungal gardens. In this work, we studied microorganisms associated with carpenter ant Camponotus vagus. Pronounced antifungal activity of isolated actinobacteria strain A10 was found to be facilitated ...
Tópico(s): Genomics and Phylogenetic Studies
2020 - Multidisciplinary Digital Publishing Institute | Microorganisms
Mikhail Drapalyuk, Aleksey Sivolapov, Vladimir Bugakov, Mikhail Egorovich Razin'kov,
In 2022, the foresters of our country are celebrating the 140th anniversary of the scientific, pedagogical, industrial and social activities of Professor Alexander Vladimirovich Tyurin. A.V. Tyurin worked in Voronezh for 24 years, foresters note the meaningful, fruitful life of a forester, scientist, educator of youth. Created with his participation, the Voronezh Higher Forestry School gradually transformed into a large forestry university of federal significance. He was characterized by broad erudition, ...
Tópico(s): Forest Biomass Utilization and Management
2023 - | Forestry Engineering Journal
Vladimir S. Tyurin, Alena O. Shkirdova, Mikhail О. Koifman, Ilya A. Zamilatskov,
This review presents a strategy for obtaining various functional derivatives of tetrapyrrole compounds based on transformations of unsaturated carbon-oxygen and carbon-carbon bonds of the substituents at the meso position (meso-formyl, vinyl, and ethynyl porphyrins). First, synthetic approaches to the preparation of these precursors are described. Then diverse pathways for the transformations of the multipotent synthons are discussed, revealing a variety of products of such reactions. The structures, ...
Tópico(s): Photodynamic Therapy Research Studies
2023 - Multidisciplinary Digital Publishing Institute | Molecules
Anna A. Baranova, Alexey A. Chistov, Maxim V. Shuvalov, Anton P. Tyurin, Mikhail V. Biryukov, Igor A. Ivanov, В. С. Садыкова, А. В. Кураков, Albina I. Sergeeva, Vladimir A. Korshun, Vera A. Alferova,
Nonribosomal cyclopeptide cyclosporin A (CsA), produced by fungus Tolypocladium inflatum, is an extremely important immunosuppressive drug used in organ transplantations and for therapy of autoimmune diseases. Here we report for the first time production of CsA, along with related cyclosporins B and C, by Tolypocladium inflatum strains of marine origin (White Sea). Cyclosporins A–C contain an unusual amino acid, (4R)-4-((E)-2-butenyl)-4,N-dimethyl-l-threonine (MeBmt), and are prone to isomerization ...
Tópico(s): Microfluidic and Capillary Electrophoresis Applications
2020 - Elsevier BV | Talanta
Moderator James F. Bell, Participants Cheryl Nickerson, Michael Lopez-Alegria, Thomas David Jones, William Pomerantz,
... ISS on Soyuz TMA-9 with Russian crewmate Mikhail Tyurin and a third person, a tourist or "spaceflight ...
Tópico(s): Technology Assessment and Management
2014 - Mary Ann Liebert, Inc. | New Space
E. A. Belokon’, V. I. Pergushov, Daniil A. Tyurin, Mikhail P. Egorov, Mikhail Ya. Melnikov,
Tópico(s): nanoparticles nucleation surface interactions
2005 - Pleiades Publishing | High Energy Chemistry
Mikhail Kudryashov, А. И. Машин, A. S. Tyurin, G. Chidichimo, Giovanni De Filpo,
Tópico(s): Polymer Nanocomposite Synthesis and Irradiation
2010 - Pleiades Publishing | Journal of Surface Investigation X-ray Synchrotron and Neutron Techniques
Konstantin Kulebyakin, Pyotr A. Tyurin‐Kuzmin, Leila Sozaeva, Nikita Voloshin, Mikhail Nikolaev, Vadim Chechekhin, Maxim Vigovskiy, Veronika Sysoeva, Elizaveta Korchagina, Daria A. Naida, Maria Vorontsova,
Parathyroid hormone (PTH) is one of the key regulators of calcium and phosphate metabolism in the body, controlling bone metabolism and ion excretion by the kidneys. At present, attempts to use PTH as a therapeutic agent have been associated with side-effects, the nature of which is not always clear and predictable. In addition, it is known that in vivo impairment of PTH post-receptor signaling is associated with atypical differentiation behavior not only of bone cells, but also of connective tissues, ...
Tópico(s): Metabolism, Diabetes, and Cancer
2022 - Multidisciplinary Digital Publishing Institute | Cells
Zn.V. Dobrohotova, А.А. Sidorov, Mikhail A. Kiskin, Г.Г. Александров, К. С. Гавричев, A. V. Tyurin, А. Л. Емелина, M. A. Bykov, A.S. Bogomyakov, И. П. Малкерова, A.S. Alihanian, В.М. Новоторцев, И.Л. Еременко,
Tópico(s): Zeolite Catalysis and Synthesis
2010 - Elsevier BV | Journal of Solid State Chemistry
A. Raykov, A.V. Tyurin, А. В. Бурмистров, S. Salikeev, Mikhail Bronstein, M. Fomina,
Procedure of conductance calculation of radial channels formed by moving walls in non-contact pumps and compressors in viscous gas flow regime is developed. Comparison of calculated data and data obtained by numerical solution of gas flow is carried out for inlet pressures from 100 to 105 Pa and wall velocities 5–40 m/s. Formula for approximate conductance calculation of channels with moving walls used as the initial approximation in the presented procedure is obtained for faster calculation.
Tópico(s): Ranque-Hilsch vortex tube
2019 - American Institute of Physics | AIP conference proceedings
Г. М. Исмаилов, A E Tyurin, K V Ikonnikova, Yu. S. Sarkisov, Mikhail Pavlov, V. E. Mineev,
The force interaction of cable elements is observed by the deformation of a flexible cable. To assess these forces, the cable is considered as a compound of the rod with a completely rigid cross-binding. The article represents some expressions used to define the forces, arising by the flexible cables service.
Tópico(s): Mechanical and Thermal Properties Analysis
2017 - IOP Publishing | IOP Conference Series Earth and Environmental Science
Ivan D. Sorokin, O. L. Mel’nikova, V. I. Pergushov, Daniil A. Tyurin, Vladimir I. Feldman, Mikhail Ya. Melnikov,
Tópico(s): Photochemistry and Electron Transfer Studies
2012 - Pleiades Publishing | Moscow University Chemistry Bulletin
Anton P. Tyurin, Vera A. Alferova, Alexander S. Paramonov, Maxim V. Shuvalov, Gulnara K. Kudryakova, Е. А. Рогожин, Alexander Zherebker, Vladimir A. Brylev, Alexey A. Chistov, Anna A. Baranova, Mikhail V. Biryukov, Igor A. Ivanov, Igor A. Prokhorenko, Natalia E. Grammatikova, Tatyana V. Kravchenko, Elena B. Isakova, Elena P. Mirchink, Elena G. Gladkikh, E. V. Svirshchevskaya, Andrey V. Mardanov, Aleksey V. Beletsky, Milita V. Kocharovskaya, V. V. Kulyaeva, Alexander S. Shashkov, D. E. Tsvetkov, Nikolay E. Nifantiev, Alexander Apt, Konstantin B. Majorov, Svetlana S. Efimova, Nikolai V. Ravin, Е. Н. Николаев, Olga S. Ostroumova, Г. С. Катруха, Olda A. Lapchinskaya, Olga А. Dontsova, Stanislav S. Terekhov, Ilya А. Osterman, Захар О. Шенкарев, Vladimir A. Korshun,
We report a novel family of natural lipoglycopeptides produced by Streptomyces sp. INA-Ac-5812. Two major components of the mixture, named gausemycins A and B, were isolated, and their structures were elucidated. The compounds are cyclic peptides with a unique peptide core and several remarkable structural features, including unusual positions of d-amino acids, lack of the Ca2+ -binding Asp-X-Asp-Gly (DXDG) motif, tyrosine glycosylation with arabinose, presence of 2-amino-4-hydroxy-4-phenylbutyric ...
Tópico(s): Probiotics and Fermented Foods
2021 - Wiley | Angewandte Chemie International Edition
Pavel S. Koroteev, Ж.В. Доброхотова, Mikhail A. Kiskin, A.S. Lermontov, Nikolay N. Efimov, A.S. Bogomyakov, A. V. Tyurin, M. A. Bykov, Л. И. Демина, Yu.A. Velikodny, S. A. Kozyukhin, Vladimir M. Novotortsev,
New isostructural lanthanide cymantrenecarboxylates [Ln2(μ-О,η2-OOCCym)2(μ2-OOCCym)2(η2-ООССym)2(py)4]·2py, where Ln = Pr (1), Sm (2), Eu (3), Gd (4) and Cym = (η5-C5H4)Mn(CO)3, were synthesized and characterized by X-ray diffraction. The crystals of 1–4 are built of discrete binuclear molecules; the Ln atoms are nine-coordinate. The phases produced by thermal elimination of pyridine from complexes 3 and 4 are identical to the phases formed by elimination of THF from the THF-containing cymantrenecarboxylates ...
Tópico(s): Polyoxometalates: Synthesis and Applications
2012 - Elsevier BV | Polyhedron
Mikhail Kudryashov, А. И. Машин, A. S. Tyurin, А. Е. Федосов, G. Chidichimo, Giovanni De Filpo,
Tópico(s): Laser-Ablation Synthesis of Nanoparticles
2011 - Pleiades Publishing | Technical Physics
Elena S. Merkuryeva, Т. В. Маркова, А. V. Tyurin, D. I. Valeeva, Vladimir Kenis, Maria Sumina, I. O. Sorokin, Olga Shchagina, Mikhail Skoblov, М. А. Нефедова, Р. И. Хусаинова, Ekaterina Zakharova, Е. Л. Дадали, Sergey I. Kutsev,
Calvarial doughnut lesions (CDL) with bone fragility with or without spondylometaphyseal dysplasia (MIM: #126550) is a rare autosomal dominant skeletal disorder characterized by low bone mineral density, spinal and peripheral fractures, and specific sclerotic lesions of the cranial bones. In the current classification of skeletal disorders, the disease is included in the group of bone fragility disorders along with osteogenesis imperfecta. The disease is caused by pathogenic variants in the SGMS2 gene, ...
Tópico(s): Caveolin-1 and cellular processes
2023 - Multidisciplinary Digital Publishing Institute | International Journal of Molecular Sciences
Г. М. Исмаилов, A E Tyurin, Mikhail Pavlov, V. E. Mineev,
Using the general theory of composite beams, we derived expressions for shear forces between cable elements. This study is the first to determine the forces of interaction between the armor and conductor of the submersible pump cable, which is considered as a composite beam with transverse bracing. The paper analyzes the forces of interaction of cable components and identifies the distribution pattern of the forces in the cable deformation zone. The findings can be used for designing submersible ...
Tópico(s): Oil and Gas Production Techniques
2018 - American Institute of Physics | AIP conference proceedings
Т. Р. Усачева, I. V. Terekhova, Diana A. Alister, Mikhail Agafonov, Natalya N. Kuranova, D. V. Tyurin, В. А. Шарнин,
The analysis of the ratios of entropy and enthalpy characteristics and their contributions to the change in the Gibbs energy of intermolecular interactions of crown ethers and cyclodextrins with amino acids is carried out. Two different types of macrocycles were chosen for examination: crown ethers with a hydrophilic interior and cyclodextrins with a hydrophobic inner cavity and a hydrophilic exterior. The thermodynamics of complex formation of crown ethers and cyclodextrins with amino acids in ...
Tópico(s): Analytical Chemistry and Chromatography
2021 - Multidisciplinary Digital Publishing Institute | Entropy
Zn.V. Dobrokhotova, I.G. Fomina, К. С. Гавричев, A. V. Tyurin, M. A. Ryumin, M. A. Bykov, А. Л. Емелина, Mikhail A. Kiskin, M. Fazylbekov, И.Л. Еременко,
Heat capacities of six synthesized complex compounds with apical substituted pyridine ligands were studied by adiabatic calorimetry (AC), differential scanning calorimetry (DSC), and computer simulation. Thermodynamic properties were calculated from experimental heat capacity data and by computer simulation. It was shown that below the structural phase transition temperatures the lattice component of heat capacity has the similar values for all studied complexes and above this temperature structural ...
Tópico(s): Free Radicals and Antioxidants
2010 - Elsevier BV | Thermochimica Acta
Mikhail Lifshits, René L. Schilling, I. S. Tyurin,
We prove that for any pair of i.i.d. random vectors X,Y in $$\mathbb{R}^n$$ and any real-valued continuous negative definite function $$\psi\; : \;\mathbb{R}^n\rightarrow\mathbb{R}$$ the inequality $$\mathbb{E}\;\psi\;(X\;-\;Y)\leqslant\mathbb{E}\;\psi\;(X\;+\;Y).$$ holds. In particular, for $$\alpha\;\in\;(0,2]$$ and the Euclidean norm $$\|\cdot\|_2$$ one has $$\mathbb{E}\|(X\;-\;Y)\|^\alpha_2\leqslant\mathbb{E}\|(X\;+\;Y)\|^\alpha_2.$$ The latter inequality is due to A. Buja et al. [4] where it is used for some applications ...
Tópico(s): Functional Equations Stability Results
2013 - Springer International Publishing | Progress in probability
Anna A. Khozyainova, Anna A. Valyaeva, Mikhail Arbatsky, Sergey Isaev, Pavel Iamshchikov, Egor Volchkov, Marat Sabirov, Viktoria R. Zainullina, Vadim Chechekhin, Rostislav Vorobev, Maxim E. Menyailo, Pyotr A. Tyurin‐Kuzmin, Evgeny V. Denisov,
Single-cell RNA sequencing (scRNA-seq) is a revolutionary tool for studying the physiology of normal and pathologically altered tissues. This approach provides information about molecular features (gene expression, mutations, chromatin accessibility, etc.) of cells, opens up the possibility to analyze the trajectories/phylogeny of cell differentiation and cell-cell interactions, and helps in discovery of new cell types and previously unexplored processes. From a clinical point of view, scRNA-seq facilitates ...
Tópico(s): Extracellular vesicles in disease
2023 - Pleiades Publishing | Biochemistry (Moscow)
А. М. Федосеев, Mikhail S. Grigoriev, I. A. Charushnikova, Н.А. Буданцева, Nadezhda M. Stanetskaya, Vladimir S. Tyurin,
New complexes of neptunyl(V) isothiocyanate with 4′-aryl-substituted 2,2′:6′,2″-terpyridines (Terpy) and N,N-dimethylacetamide (DMA) were obtained: [(NpO2)(4′-Ph-Terpy)(DMA)(NCS)]·DMA, [(NpO2)(4′-(4-(CF3)C6H4)-Terpy)(DMA)(NCS)]·2H2O·DMA, [(NpO2)(4′-(3-BrC6H4)-Terpy)(DMA)(NCS)]·DMA, and [(NpO2)(4′-(2-(COOH)C6H4)-Terpy)(DMA)(NCS)]·DMA. The structures of the compounds were determined with X-ray diffraction analysis. The neptunium coordination polyhedra were found to be pentagonal bipyramids with O atoms of the ...
Tópico(s): Nuclear Materials and Properties
2021 - American Chemical Society | Inorganic Chemistry
Vadim Chechekhin, Anastasia Ivanova, Konstantin Kulebyakin, Veronika Sysoeva, Daria A. Naida, Mikhail Arbatsky, Nataliya Basalova, Maxim Karagyaur, Mariya Skryabina, Anastasia Efimenko, Olga Grigorieva, Natalia Kalinina, Tkachuk Va, Pyotr A. Tyurin‐Kuzmin,
Hypertension is a major risk factor for cardiovascular diseases, such as strokes and myocardial infarctions. Nearly 70% of hypertension onsets in adults can be attributed to obesity, primarily due to sympathetic overdrive and the dysregulated renin-angiotensin system. Sympathetic overdrive increases vasoconstriction via α1-adrenoceptor activation on vascular cells. Despite the fact that a sympathetic outflow increases in individuals with obesity, as a rule, there is a cohort of patients with obesity ...
Tópico(s): Cardiovascular Disease and Adiposity
2023 - Multidisciplinary Digital Publishing Institute | Cells
V. I. Pergushov, Daniil A. Tyurin, Natalia A. Chumakova, Mikhail Ya. Melnikov,
Tópico(s): Atmospheric chemistry and aerosols
2009 - Pleiades Publishing | Moscow University Chemistry Bulletin