Siberian Branch of the Russian Academy of Sciences

Liquid spraying and break-up of droplets in a transonic air flow

Sprays of water, ethanol, and acetone of micrometre-scale droplets are investigated in a transonic flow in a flat converging–diverging nozzle with a shock wave structure downstream. High-magnification two-frame shadowgraphy with a short interframe delay is used to investigate the...

The pollen ratio of indicator taxa in steppe and forest-steppe landscapes of Altai Krai

The pollen ratios of key plant taxa in the spectra of palynological samples are widely used to indicate changes in vegetation, landscapes and climate. In this study, based on the analysis of pollen spectra obtained from Tauber traps and topsoil samples, the main ratios of indicat...

Dirt road density increased markedly since the 1970s in the Daurian grasslands

Informal dirt roads are widespread and can increase human access and habitat fragmentation in remote landscapes. However, they are rarely mapped, leaving their ecological effects poorly quantified. We assessed changes in dirt road networks across the Daurian Steppe of Mongolia, R...

Разработка подхода к комплексной оценке состояния нарушенных земель горными работами

Large-scale mineral mining, including critical minerals of oil, gas and coal, conditions withdrawal of vast land from the agricultural sector. The relevance of this problem is connected with prevention and elimination of disamenity of the subsoil use. It is necessary to determine...

SiO2 layers with the reduced dielectric permittivity produced by the anodic oxidation of Si substrates containing ion beam-synthesized SiC nanoparticles

The anodic oxidation of 90 keV CO + ion-implanted Si substrates was investigated as a function of the ion dose ranging from 2.5 × 10 15 to 5 × 10 16 cm −2 after the annealing at the temperature of 1100 °C. SRIM software calculations, spectral ellipsometry, Fourier transform infra...

Control of semiconductor surface morphology and wettability via nanosecond laser texturing

Efficient thermal management in modern compact electronics requires surfaces with controlled wettability and strong wicking capability. Although laser-textured silicon is widely studied for its optical response, its wetting and capillary transport properties remain less explored....

Influence of mechanical vibration on nucleate boiling heat transfer at different pressures

The paper presents results of experimental study on the influence of mechanical vibration on heat transfer and evaporation dynamics in nucleation boiling of saturated water (for the pressure interval 10 – 101.3 kPa). Relevance of the study is due to a demand in increasing the hea...

Size-age structure of Artemia parthenogenetica and A. tibetiana (Crustacea: Anostraca) populations in hypersaline lakes of southern Western Siberia, 2025

Endorheic hypersaline lakes of diverse hydrochemical types in southern Western Siberia, with zooplankton communities dominated by the genus Artemia Leach, 1819, are reliable indicators of water availability and are sensitive to climate–driven water–level changes. The abundance an...

Diversity and Structure of Denitrifying Bacterial Communities in Different Biotopes of the Littoral Zone of Lake Baikal

Abstract— The composition and diversity of denitrifying bacteria inhabiting biofilms on rocky substrates (epilithic biofilms), the surface microlayer, the water column, and the near-bottom water layer in Southern Lake Baikal were studied using high-throughput amplicon sequencing...

Biogeochemical Impact of Thermal Abrasion of Frozen Rocks on the Arctic Coast

The biogeochemical consequences of the destruction of permafrost horizons due to thermal abrasion of coastal cliffs was assessed for the Mamontovyi Khayata outcrop (Bykovsky Peninsula, Northern Yakutia). The study employed an ecosystem-based approach, which included characterizin...

Exploring baryon semileptonic decays through polarization and entanglement

Abstract The unitarity of the Cabibbo–Kobayashi–Maskawa (CKM) matrix is a cornerstone of the standard model (SM). Precise tests of this unitarity require independent determinations of its elements, such as | V us |, which governs the transition between strange and up quarks. Curr...

How Does Inter-Epitope Spacer Variation Within Artificial Immunogens Based on T-Cell Epitopes of Tick-Borne Encephalitis Virus Affect Immunogenicity?

Background/Objectives: In recent years, researchers have directed considerable attention toward the activation of the T-cell response in the development of vaccines against viral infections, including the tick-borne encephalitis virus (TBEV). A particularly promising approach to...

A Sustainable Approach for Effective Antimicrobial and Antiproliferative Activity Against Cervical Cancer Cells Using Caesulia axillaris ‐Mediated Pt@Co 3 O 4 /rGO NCs

ABSTRACT Herein, we report the biogenic synthesis of platinum‐doped cobalt oxide–reduced graphene oxide nanocomposites (Pt@Co 3 O 4 /rGO NCs) via green approach using Caesulia axillaris leaf extract as both reducing and capping agents for multiple biological applications. As‐bios...

Circulating anti-Ro/SSA-antibodies and risk of heart rate-corrected QT interval prolongation: a meta-analysis

Abstract Backgrounds Accumulating evidence indicates that anti-Ro/Sjögren’s syndrome-related antigen A(SSA)-antibodies, specifically the anti-Ro/SSA-52kD subtype, can promote heart rate-corrected QT interval(QTc) prolongation by inhibiting the hERG-K+ channel. However, the numero...

Efficiency Improvement and SEM Visualization of Enzymatic Hydrolysis-Based Valorization of Oat Hulls

The utilization of agro-industrial waste in the bioeconomy is crucial for reducing the environmental impact. This study investigated the valorization of a common oat processing waste—oat hulls—using enzyme preparations of different origin and enzyme cocktails based on them. Oat h...

Design, Synthesis,and Evaluation of Alkoxyamine AnticancerProdrugs Bearing Galactoside as an Enzyme-Activated Trigger

Abstract Enzyme-induced cytotoxicity can be considered the main challenge in modern cancer therapy that provides unique opportunities for targeted apoptosis. To address this challenge, we implemented enzyme-triggered activation of alkoxyamine–galactose conjugates with the formati...

Enhancing knowledge of non-target tortricid fauna via pheromone monitoring of the quarantine fruit pest Grapholita molesta (Lepidoptera: Tortricidae) in Russia

The oriental fruit moth, Grapholita molesta (Busck, 1916), is an East Asian fruit pest that has spread to both hemispheres causing significant economic losses. In some countries, including Russia, it is considered a quarantine species which occurence and spread are monitored usin...

Enhancing knowledge of non-target tortricid fauna via pheromone monitoring of the quarantine fruit pest Grapholita molesta (Lepidoptera: Tortricidae) in Russia

The oriental fruit moth, Grapholita molesta (Busck, 1916), is an East Asian fruit pest that has spread to both hemispheres causing significant economic losses. In some countries, including Russia, it is considered a quarantine species which occurence and spread are monitored usin...

Starch as a Polymer-Based Medium Modifier to Analyze Enzyme Activity under Conditions Close to Intracellular Media: Butyrylcholinesterase as a Model Enzyme

Abstract The study demonstrates the possibility of using starch to model macromolecular crowding and intracellular medium. A kinetic approach is used to reveal specific functioning of butyrylcholinesterases from different sources in the starch medium. In the study solutions, the...

Chemical Features of Rare-Earths Accessory Minerals in the Lower–Middle Cambrian Terrigenous Rocks from the Argun Series of the Northwestern Part of the Argun Superterrane as Indicators of the Sources

Abstract The paper presents the results of the chemical study of rare-earth accessory minerals of the Lower–Middle Cambrian terrigenous rocks of the Bystraya Formation and the Ernichny Unit of the Argun Series of the Argun Superterrane. The chemical analysis of monazite, xenotime...