Lomonosov Moscow State University

Mycobiota of the Bottom Sediments of the White Sea: Metabarcoding and Cultural Method

Abstract Knowledge of the composition of fungi in sediments is necessary to understand many biological processes, the decomposition of organic substances in aquatic ecosystems in particular. However, the diversity of fungi in the Arctic seas remains poorly studied, and single stu...

The I130V and S229F Tropomyosin Mutations Associated With Congenital Heart Disease Disrupt Actin‐Myosin Interactions in the Atria

ABSTRACT Tropomyosin is a highly conserved α‐helical coiled‐coil protein that is involved in maintaining the structural integrity of the sarcomere and regulating contraction of striated muscle. Mutations in the TPM1 gene encoding cardiac α‐tropomyosin (Tpm1.1) are associated with...

The Cold-Air Outbreaks in the Marine Boundary Layer Experiment model-observation intercomparison project (COMBLE-MIP) – Part 1: Model specification, observational constraints, and preliminary findings

Models struggle to represent the coupled microphysical, turbulent and radiative processes within widespread, long-lived marine cold-air outbreak (CAO) cloud fields, contributing to forecast and climate biases. Here we combine ground-based and satellite measurements to initialize...

Bubbles, dry patches, and contact line dynamics leading to the boiling crisis in thin liquid film at droplet impact onto hot surfaces

Understanding and predicting the transition from nucleate boiling regime to the boiling crisis in a thin liquid film is important for numerous applications, such as the thermal management of power electronics and nuclear power plants. The processes of bubble coalescence, their br...

Flows around the NOAA 11158 active region at various depths in the subphotospheric zone

This study analyzes velocity fields in the Sun’s convection zone at depths from 0.5 to 19 Mm at different evolutionary stages of active region NOAA 11158 (from 09 to 18 February 2011), obtained using techniques of time-distance helioseismology, within the general problem of inves...

Development of a Highly Efficient System for the Production of the Holoform of Recombinant Cytoglobin

Abstract Objective: A highly efficient production system for recombinant human cytoglobin using minimal medium has been developed and optimized. This system enables the production of the water-soluble holoform of the protein—in both unlabeled and isotopically labeled forms—in qua...

Assessing Mass Transport of Isooctane in Zeolites by In Situ FTIR Spectroscopy

Abstract In situ FTIR spectroscopy was established as a standalone method for quantifying mass transport in zeolites. By monitoring two independent IR markers, global isooctane uptake (δ(CH) bands) and Brønsted acid site accessibility (3610 cm –1 band), the method reveals a 5 to...

The Spall Strength of the Polytetrafluoroethylene Irradiated above the Melting Point

The features of the deformation and fracture of polytetrafluoroethylene (PTFE) before and after exposure to gamma radiation above the melting point of the crystalline phase are investigated using shock wave loading methods at various impact velocities from 100 to 600 m/s, which c...

THE ISSUE OF PAYMENT FOR NEGATIVE PHYSICAL IMPACT ON THE ENVIRONMENT: THEORETICAL AND LEGAL PROBLEMS

The article examines the theoretical and legal problems of establishing a fee for negative physical impact on the environment. The legal nature of the fee for negative impact and the correlation between its compensation and fiscal functions are analyzed. The existing approaches t...

Accelerated Alternating Minimization Algorithm for Low‐Rank Approximations in the Chebyshev Norm

ABSTRACT Nowadays, low‐rank approximations of matrices are an important component of many methods in science and engineering. Traditionally, low‐rank approximations are considered in unitarily invariant norms; however, recently element‐wise approximations have also received signi...

Elucidating the true catalytic nature of first-row transition metal coordination compounds under oxygen-evolution conditions

The oxygen-evolution reaction (OER) is the kinetic bottleneck of electrochemical water splitting and, therefore, a central challenge in the development of sustainable hydrogen production technologies. First-row transition metal coordination compounds have attracted considerable a...

Tailoring the Fire-Retardant Efficacy of Intumescent Coatings via Optimal Selection of Epoxy Binder Molecular Weight

Epoxy resins are widely used as binders in intumescent fire-retardant coatings; however, the effect of their molecular weight on the fire-retardant performance of coatings with different intumescent mechanisms remains insufficiently understood. In this study, five commercial bisp...

On Sidon sets with squares, cubes and quartics in short intervals

Abstract Representative examples of our results are as follows. For any positive integer $$N$$ N the equation $$x^3+y^3=z^3+t^3, \quad x,y,z,t\in \mathbb{N}, \quad \{x,y\}\not=\{z,t\}$$ x 3 + y 3 = z 3 + t 3 , x , y , z , t ∈ N , { x , y } ≠ { z , t } has no solutions satisfying...

Diluted Aqueous DNA Solutions: Physicochemical and Biological Properties

Abstract Using a complex of physicochemical methods (dynamic and electrophoretic light scattering, UV spectroscopy, fluorescence, ORP measurement) and ecotoxicological tests, diluted aqueous solutions of salmon milt DNA (DNA-ml)—an accessible byproduct of the fishing industry wit...

Synthesis of Bispidine–Isoxazolidine-Fused Multicyclic Scaffolds via Nitrone [3+2] Cycloaddition: Toward “Hetero-Lupine Alkaloids”

Abstract We present a highly efficient strategy for the assembly of bispidine–isoxazolidine-fused multicyclic structures via [3+2] cycloaddition of alkenes to a nitrone-functionalized bispidine framework. The reaction smoothly delivers diverse hybrid heterocycles featuring comple...

Studies of Two Post Common Envelope Binary Stars

Abstract New time series photometry of the short period (P < 0.2 d) binary stars ZTF J032906.36+070408.3 (ZTF 0329) and ATO J090.7238+00.5996 (ATL 0602) is presented. The primary (hotter) stars in both systems are white dwarfs, while the cooler stars are M dwarfs. Archival photom...

Intracellular Ca2⁺ dynamics are required for microglial process motility during surveillance and in response to injury

Microglia, the resident immune cells of the central nervous system, play pivotal roles in brain surveillance and injury responses through highly dynamic process motility. Here, we investigated the role of Ca 2 ⁺ signaling in mediating microglial process motility under both physio...

Low-Dose Foliar Melatonin Enhances Chilling Stress Tolerance in Cucumber

The study evaluated the potential of low-dose foliar melatonin (MT) treatments to alleviate chilling injury in cucumber plants, with a particular focus on mimicking sudden spring frosts in open-field cultivation. Cucumber seedlings were sprayed with MT solutions at 0.1, 1, and 10...

Effect of Structural Motif on Magnetic Properties in Molybdenum Chlorides of Mo5+ Ions: Ferromagnetism from Mo2Cl10 Dimers and Antiferromagnetism from Isolated MoCl6– Anions

Abstract The evolution of magnetic properties in molybdenum chloride systems caused by structural motif changes was investigated by magnetic property measurements and DFT calculations. In ξ-MoCl5, characterized by the presence of molybdenum dimers, the formation of ferromagnetic...

Prediction of Drug Resistance Mechanisms: Integration of Molecular Modeling and Artificial Intelligence Methods

Abstract Drug resistance caused by single-point amino acid substitutions in target proteins represents a serious problem in modern therapy of oncological, infectious and viral diseases. This review systematizes modern computational modeling methods that allow studying the molecul...