Сборник задач Всероссийской олимпиады школьников «Высшая проба»: ТОМ 1 БИОЛОГИЯ, ХИМИЯ, ФИЗИКА, ИНЖЕНЕРНЫЕ НАУКИ, ГЕОГРАФИЯ. Т. 1

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Сборник задач Всероссийской олимпиады школьников «Высшая проба»: ТОМ 1 БИОЛОГИЯ, ХИМИЯ, ФИЗИКА, ИНЖЕНЕРНЫЕ НАУКИ, ГЕОГРАФИЯ

Т. 1: БИОЛОГИЯ, ХИМИЯ, ФИЗИКА, ИНЖЕНЕРНЫЕ НАУКИ, ГЕОГРАФИЯ. -, 2024.

Under the general editorship: Svitanko I.

Research target: Chemistry Physics Biology

Language: Russian

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Keywords: Химия

Сборник задач Всероссийской олимпиады школьников «Высшая проба»: ТОМ 1 БИОЛОГИЯ, ХИМИЯ, ФИЗИКА, ИНЖЕНЕРНЫЕ НАУКИ, ГЕОГРАФИЯ

Metastability of lipid vesicle shapes in uniaxial extensional flow

Pikina E., Physical Review E - Statistical, Nonlinear, and Soft Matter Physics 2026 Vol. 113 No. 5

In this work, we investigate the elastic properties of deflated vesicles and their shape dynamics in uniaxial extensional flow. By analyzing the Helfrich bending energy and viscous flow stresses in the limit of highly elongated shapes, we demonstrate that all stable vesicle configurations are metastable. For vesicles with small reduced volume, we identify the type ...

Added: September 1, 2026

HF Heating Effects as Seen From Below and Above: First Results of Joint SURA–Ionosfera-M Experiment

Chernyshov A., Padokhin A. M., Grach S. M. et al., Geophysical Research Letters 2026 Vol. 53 P. 1–11

This paper presents the first results of a coordinated experiment on the ionospheric plasma response to high-frequency (HF) overdense heating, conducted using the SURA heating facility and the Ionosfera-M satellite. The experiment combined ground-based observations with in situ satellite measurements, enabling a comprehensive study of artificial ionospheric disturbances. During the experiment, the SURA facility transmitted ...

Added: August 31, 2026

Hectometric Continuum Radiation Observations on Different Temporal Scales in Near-Earth Space

D. A. Dorofeev, A. A. Chernyshov, Mogilevsky M. M. et al., JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 2025 Vol. 130 Article e2025JA033900

This study analyzes data from the ERG (Arase) satellite over a period of nearly 7 years (2017–2023). During this time, about 1,000 cases of hectometric continuum (HMC) radiation in near‐Earth space were detected, which made it possible to identify characteristic features on different time scales. On a daily scale, it was established that HMC is ...

Added: August 31, 2026

On the nature of hectometric continuum-type emissions in the near-Earth plasma

Mogilevsky M. M., Shaposhnikov V., Chernyshov A. et al., Physics of Plasmas 2025 Vol. 32 P. 1–10

The ERG (Arase) satellite recently discovered a non-thermal hectometric continuum with a narrowband frequency structure. The mechanism behind the generation of this type of emission in the near-Earth plasma is still unknown. This study examines the potential use of electron cyclotron harmonics instability to explain the line structure of hectometric radio emissions for the first ...

Added: August 31, 2026

(111)-Textured p-Type PbTe Films Grown on Muscovite Micawith High Room-Temperature Hole Mobility

Kobtsev Danil, Albert J., Nitzan M. et al., Applied Sciences (Switzerland) 2026 Vol. 16 No. 17 Article 8577

AIVBVI semiconductors, particularly lead chalcogenides, remain key materials for mid-wave infrared (MWIR) photodetection due to their narrow bandgap and exceptional carrier transport properties. However, the realization of high-quality p-type PbTe thin films, suitable for p–n junction devices, remains a technological challenge. In this work, we report the fabrication of high-mobility p-type PbTe thin films grown on ...

Added: August 30, 2026

Сборник трудов XXXII Международной научно-технической конференции «Радиолокация, навигация, связь»

Воронеж: Издательский дом ВГУ, 2026.

В сборник вошли материалы XXXII Международной научно-технической конференции «Радиолокация, навигация, связь» (RLNC*2026), прошедшие ре цензирование членами программного комитета конференции. Основной целью конференции является организация взаимодействия научных и научно технических коллективов для обмена опытом и новыми творческими успехами. Достижение этой цели также способствует внедрению перспективных разрабо ток, имеющих практическое значение для дальнейшего развития промышленно сти, экономики ...

Added: August 29, 2026

Pyramidal solitons: existence, instability, and interactions

Melnikov I., Pelinovsky E., Nonlinear Dynamics 2026 No. 114 Article 934

Pyramidal solitons (solitons with more than two inflection points) of the generalized Korteweg–de Vries (KdV) equation are investigated. Necessary and sufficient conditions for the existence of such structures are presented. Within the framework of the generalized Gardner equation — the simplest model that admits pyramidal solitons as solutions — it is shown that these solutions ...

Added: August 27, 2026

Non-epitaxial perovskite polariton laser diode operating under direct current

Zhukov A., Kryzhanovskaya N., Moiseev E. et al., Nature 2026 Vol. 656 P. 80–85

Reaching lasing in electrically pumped microdevices based on solution-processed semiconductors poses a substantial scientific and technological challenge. Halide perovskites offer a promising platform for electrical injection1, as their optically excited single-crystal cavities2–4 and predesigned5,6 or postprocessed microstructures7,8 have exhibited low lasing threshold. Indirect electrical pumping of a dual-cavity perovskite laser was recently obtained9, using a well-established technological concept of embedding a ...

Added: August 27, 2026

Monometallic Ln3+ and heterometallic Ln3+–Cd2+ complexes based on pentafluorophenylacetic acid: efficient control of dimension and luminescent properties

Belousov Y., Кискин М. А., Sidoruk A. et al., Australian Journal of Chemistry 2022 Vol. 75 No. 9 P. 572–580

Four new complexes [Ln(pfaa)3(H2O)2]n (Ln = Eu (1), Tb (2)) and [Ln2Cd2(pfaa)10 (phen)2(EtOH)2]·2MeCN (Ln = Eu (3), Tb (4), phen = 1,10-phenanthroline) based on pentaphorphenylacetic acid (Hpfaa) have been prepared and completely investigated. The structures of compounds 1 and 3 were studied by single crystal X-ray diffraction analysis: the isostructural complexes 1 and 2 represent ...

Added: August 26, 2026

Прогностическое значение полигенного профиля риска при дилатационной кардиомиопатии: анализ краткосрочной выживаемости

Кубкин Я. В., Российский кардиологический журнал 2026 Т. 31 № 8S

Goal. To assess the contribution of polygenic risk scores to the short‑term mortality prediction model in patients with dilated cardiomyopathy (DCM). Materials and methods. The study included 137 patients with DCM. The mean age was 56.8 ± 13.5 years; there were 115 men (83.9 %). The median follow‑up period was 17 [13; 22] months. During the follow‑up period, 26 ...

Added: August 24, 2026

Understanding the electric double layer at electrode–electrolyte interfaces, Part III: crystallographic-face dependence of silver capacitance in aqueous NaF solutions

Mazur D., Brandyshev P., Doronin S. V. et al., Electrochimica Acta 2026 Vol. 577 Article 149729

The electric double layer (EDL) at a single-crystal metal surface is controlled not only by the electrolyte composition and the electrode potential, but also by the atomic structure of the surface itself. This makes the Ag(hkl)/NaF interface a stringent test for continuum theories of the EDL. In the third part of our series, we examine ...

Added: August 20, 2026

Giant magnetocaloric effect in the quaternary Fe–Rh–Pd–Ir alloy: Experimental and first-principles study

Gimaev R., Karpenkov A., Shelkovyi F. et al., Journal of Alloys and Compounds 2026 No. 1080 Article 190307

The magnetothermal properties of the quaternary Fe49Rh46.1Pd3.1Ir1.8 alloy are investigated by a combination of first-principles calculations, structural characterization, magnetometry, calorimetry, and direct measurements of the adiabatic temperature change. An exceptional magnetocaloric response is obtained, with ΔTad reaching −11.9 K in a field of 1.85 T under the discontinuous protocol and −8.6 K under the continuous ...

Added: August 18, 2026

Quantum viscosity mechanism of dissipative dynamics in the Dicke model expressed via Lindblad equation of motion

Beck M. E., Seidov S., Mukhin S., Physical Review A: Atomic, Molecular, and Optical physics 2026 Vol. 113 No. 6 Article 063706

Quantum dissipation is studied in the superradiant phase of the extended Dicke model. It is demonstrated analytically by quantum mechanical derivation of the Lindblad equation for the Dicke model in the superradiant state coupled to Caldeira-Leggett thermal bath that the effective viscosity appearing in the semiclassical equations of motion of polaritonic condensate survives in the zero-temperature limit ...

Added: August 13, 2026

Analytical solution of coupled self-consistency and linearized Usadel equations for dirty superconductors near 𝑇𝑐 and with the proximity effect

S. S. Seidov, N. G. Pugach, Physical Review B: Condensed Matter and Materials Physics 2026 Vol. 114 No. 7 Article 074504

In this manuscript we consider a superconducting film in the vicinity of the critical temperature and presence of the proximity effect. We analytically solve the corresponding linearized Usadel equation and the self-consistency equation, defining the critical temperature. This is a system of coupled differential and integral equations for the anomalous Green's function and the order parameter of ...

Added: August 13, 2026

Hadrons in N = 2 supersymmetric QCD from non-Abelian string on 2D black hole

Ievlev E., Marshakov A., Sumbatian G. et al., Physical Review D - Particles, Fields, Gravitation and Cosmology 2026 Vol. 114 Article 046006

We continue the study of non-Abelian vortex string in 4D N =2 supersymmetric QCD (SQCD) as critical superstring, and extend this analysis to UðNÞ gauge theory with arbitrary even N and Nf = 2N number of quarks. We introduce a special mass deformation and show that the SQCD hadron spectrum is still given by the string spectrum on the ...

Added: August 13, 2026

Reconstruction of EEG signals using next-generation reservoir computing

Badarin A., Ratnikov F., Andreev A., European Physical Journal: Special Topics 2026 P. 1–10

EEG recordings are often affected by the loss or corruption of individual channels due to electrode detachment, poor scalp contact, or external interference. Such channels must be accurately reconstructed before further analysis. In this study, we investigate Next-Generation Reservoir Computing (NG-RC) as a data-driven approach for reconstructing corrupted EEG channels and compare its performance with ...

Added: August 12, 2026

Production of Λ hyperons in 4.0A GeV and 4.5A GeV carbon-nucleus interactions at the Nuclotron

Afanasiev S., Agakishiev G., Aleksandrov A. et al., Journal of High Energy Physics 2026 Vol. 2026 Article 48

The BM@N experiment (Baryonic Matter at the Nuclotron) is the first fixed-target experiment at the JINR NICA accelerator complex. In this work, data on the interactions of a carbon-ion beam with kinetic energies of 4.0A GeV and 4.5A GeV with C, Al, Cu, and Pb targets are used to measure transverse momentum spectra and rapidity ...

Added: August 12, 2026

Hall effect in electrolyte solutions: Self-consistent Debye–Hückel–Onsager theory

Budkov Y., Kalikin N., Journal of Chemical Physics 2026 Vol. 165 Article 064506

A self-consistent statistical-mechanical theory of the Hall effect in electrolyte solutions is developed by extending the self-consistent Debye–Hückel–Onsager (SCDHO) framework to crossed electric and magnetic fields. The theory incorporates non-local ionic charge distributions via Slater-type form factors, regularizing the Coulomb interaction at short range, and accounts for dielectric friction through ion-specific coefficients, employing experimental values ...

Added: August 12, 2026

A Way to Create Mn-Containing GdFe3(BO3)4 and the Dopant Effect on Its Magnetic Properties

Moshkina E., Molokeev M., Zolotov A. et al., Journal of Alloys and Compounds 2026 Vol. 1077 Article 189412

A wide series of substitutions in a subsystem of small radii cations M = Al, Cr, Fe, Ga, Sc is possible in rare-earth borates ReM3(BO3)4 with the huntite structure. However, the existence of these compounds where M = Mn still raises doubts. The study presents a synthetic approach developed in the framework of the flux method allowing for the required ...

Added: June 29, 2026

Методические материалы для проведения заключительного этапа Всероссийской олимпиады школьников по химии

Алексеев Р. С., Андреев М. Н., Асирин А. У. et al., Новый Уренгой: [б.и.], 2025.

Методические материалы для проведения заключительного этапа ВсОШ по химии (теоретические туры) Под редакцией председателя центральной предметно-методической комиссии Всероссийской олимпиады школьников по химии, академика, вице-президента РАН, профессора Химического факультета МГУ имени М. В. Ломоносова С. Н. Калмыкова ...

Added: July 2, 2025

XXII Mendeleev Congress on General and Applied Chemistry, October 7-12, 2024, Federal Territory “Sirius”, Russia. Book of abstracts in 7 volumes

“Admiral Print” LLC, 2024.

Mendeleev Congress 2024, Book of Abstracts ...

Added: October 14, 2024

ХХII Менделеевский съезд по общей и прикладной химии, 7-12 октября, 2024, Федеральная территория «Сириус», Россия. Сборник тезисов докладов в 7 томах

М.: ООО «Адмирал Принт», 2024.

Сборник тезисов Менделеевского съезда 2024 г. ...

Added: October 14, 2024