bluuebunny/crossref_metadata_2025_split huggingface dataset:
Nonmuscle myosin heavy chain IIA facilitates SARS-CoV-2 infection in human pulmonary cells
Authors: Chen Jian , Fan Jun , Chen Zhilu , Zhang Miaomiao , Peng Haoran , Liu Jian , Ding Longfei , Liu Mingbin , Zhao Chen , Zhao Ping , Zhang Shuye , Zhang Xiaoyan , Xu Jianqing 
Published: December 2021

Significance
SARS-CoV-2 primarily targets the lung and enters the body through ACE2 receptors. However, the expression of ACE2 is extremely low in the airways. In this study, we utilized APEX2 proximity-labeling techniques and identified nonmuscle myosin heavy chain IIA (MYH9) as an ACE2 coreceptor to promote SARS-CoV-2 infection of human lung cells, as well as infection of pan-coronavirus. We demonstrated that MYH9 colocalized with SARS-CoV-2 S primarily at the membrane, which interacts with the S2 subunit and the S1-NTD subunit through its C-terminal domain, and enhances SARS-CoV-2 entry in an ACE2-dependent manner. Our results define MYH9 as a key host factor that facilitates SARS-CoV-2 and pan-coronavirus infection, which may serve as a potential target for future clinical intervention strategies.
“Very easy, it’s an English class, therefore they should not rely on a French text”
Authors: Payant Caroline , Bell Philippa 
Published: December 2021

Abstract
In the context of additional language (AL) learning, teachers need to focus on the development of language
proficiency as well as on high-level literacy skills, for example, comprehending and evaluating information and creating new
meaning. From a plurilingual perspective, AL learners’ first language (L1) is conceputalised as a useful tool in the development of
target language proficiency; however, limited information exists concerning AL teachers’ beliefs towards the use of the L1 for
high-level literacy instruction despite its potential utility for complex skill development. The aim of the present exploratory
study was to examine the beliefs of in-service teachers of English as an additional language (EAL) working in the Quebec primary
and secondary school system in francophone Canada regarding plurilingual approaches for classroom literacy practices and to
uncover the factors that influence their beliefs. An online survey was distributed to in-service EAL teachers
(N = 57) working in the province of Quebec, Canada. Findings suggest that teachers believe that it is most
beneficial to adopt a monolingual lens to literacy instruction, a belief that denies learners’ use of their L1 and this, in a
bilingual country. Implications for teacher education programs that challenge a monolingual lens are explored.
Simultaneous interpretation of complex structures from English into Arabic
Authors: El-Zawawy Amr M. 
Published: December 2021

Abstract
A complex sentence is described as such by virtue of its multiple constituents which vary from clauses, subclauses
to phrases. English and Arabic linguistic literature includes references to the issue of syntactic complexity, yet the approaches
are different. The present study seeks to investigate how Arab simultaneous interpreters translating from English into Arabic deal
with syntactically complex structures. To achieve this goal, the final debate between Hillary Clinton and Donald Trump is selected
as the test-ground. The study finds that simultaneous interpreters operating from English into Arabic deal with complex structures
in different ways by adopting and adjusting their strategies. The dominant strategy is linearization, which is triggered by the
need to translate under time pressure. This strategy also unloads the simultaneous interpreter’s cognitive burden. Yet complete
linearization is impossible, since omission and compression may interfere as in the case of embedding and ‘that’ structures. Other
strategies, particularly addition and chunking, are also observable, being applied when interpreters find themselves faced with
asyndetic structures and multiple embedding.
Constraining positron emission from pulsar populations with AMS-02 data
Authors: Orusa Luca , Manconi Silvia , Donato Fiorenza , Di Mauro Mattia 
Published: December 2021

Abstract
The cosmic-ray flux of positrons is measured with high precision by the space-borne particle spectrometer AMS-02. The hypothesis that pulsar wind nebulae (PWNe) can significantly contribute to the excess of the positron (e+) cosmic-ray flux has been consolidated after the observation of a γ-ray emission at TeV energies of a few degree size around Geminga and Monogem PWNe.

In this work we undertake massive simulations of galactic pulsars populations, adopting different distributions for their position in the Galaxy, intrinsic physical properties, pair emission models, in order to overcome the
incompleteness of the ATNF catalog. We fit the e+ AMS-02 data together with a secondary component due to collisions of primary cosmic rays with the interstellar medium.
We find that several mock galaxies have a pulsar population able to explain the observed e+ flux, typically by few, bright sources. We determine the physical parameters of the pulsars dominating the e+ flux, and assess the impact of different assumptions on radial distributions, spin-down properties, Galactic propagation scenarios and e+ emission time.
Chapter 6 Multimessenger Physics *
Authors: Li Zhuo , Di Sciascio Giuseppe , Gou Quan-Bu , Guo Yi-Qing , He Hao-Ning , Liu Ruo-Yu , Wang Kai 
Published: December 2021

Abstract
Combining observations of multi-messengers help in boosting the sensitivity of astrophysical source searches, and probe various aspects of the source physics. In this chapter we discuss how LHAASO observations of very high energy (VHE) gamma rays in combination with telescopes for the other messengers can help in solving the origins of VHE neutrinos and galactic and extragalactic cosmic rays.
Nanostructuring at oblique incidence deposition of cobalt
Authors: Akulov A A , Trushin O S , Popov A A , Pestova A N , Mazaletsky L A , Lomov A A 
Published: December 2021

Abstract
Nanocolumnar Co thin films growth by oblique angle deposition on Si substrate is experimentally studied. Formation of regular arrays of tilted Co nanocolumns has been observed at incidence angles more than 70°. It was found that the optimal conditions for nanostructuring are realized at the inclination angle 85°. As obtained films have magnetic anisotropy axis inclined to the substrate surface and oriented along nanocolumns. Such films might be perspective material for applications as a magnetic recording media for next generations of hard disks.
Magnetron sputtered TiO2 with metal NPs for plasmonic applications
Authors: Konev D , Kazakin A , Vorobyev A , Enns Y , Kuznetsov A , Kondrateva A , Mishin M 
Published: December 2021

Abstract
This work is aimed at finding the optimal technological modes for the deposition of TiO2 films by reactive magnetron sputtering for use as a photoactive material in plasmonic applications. The structural and optical parameters of films obtained at different ratios of oxygen in a mixture of working gases were studied. On the basis of the obtained experimental results, a numerical simulation of the spectral characteristics of the TiO2 / NP structure of the metals silver and gold was carried out.
Investigation of the features of the porous morphology of anodic alumina films at the initial stage of anodization
Authors: Chernyakova K V , Muratova E N , Vrublevsky I A , Lushpa N V 
Published: December 2021

Abstract
The work is devoted to the study of the porous structure formation of anodic alumina films at the initial stage of aluminium anodizing. SEM images of the surface morphology of the oxalic acid anodic films were analyzed. It was shown that at the initial stage, both major and minor pores are formed, the diameter ratio of which is about 1.16 and does not depend on the anodizing voltage. The results obtained indicate that the minor pores in the anodic films are located inside hexagonal cells composed of the major pores.
Investigation of near-surface layer dislocation density of lithium niobate single crystal wafers using chemical etching
Authors: Ponomarev R S , Sosunov A V , Semenova O R , Prokhorov N P , Kuneva M 
Published: December 2021

Abstract
Using chemical etching it was shown that the density of dislocation in lithium niobate (LN) single crystal wafers is higher near the surface in depth about 20 um than in the depth of crystal. It caused to change of diffusion coefficient during the waveguide formation with proton exchange (PE) method and can increase DC-drift of intensity optical modulators based on PE-waveguides.
Raman analysis of the crystallinity degree for the local regions in Ge2Sb2Te5 films after laser exposure at different parameters
Authors: Tolkach N M , Vishnyakov N V , Yakubov A O , Sudakova A U , Trofimov E S , Sherchenkov A A 
Published: December 2021

Abstract
The evaluation of the crystallinity degree for the local regions in Ge2Sb2Te5 (GST) thin films after phase state transformation by laser pulses at 405 nm wavelength was analyzed using the Raman spectroscopy. The modes of laser radiation for controlling the reflectivity and transmissivity at 1550 nm telecommunication wavelength of the local regions in the GST film were established. The results obtained make it possible to implement the method of the completely optical control of the multilevel modulation of the optical signals for the integrated optics devices.
Investigation of resistive switching in Ag/Ge/Si(001) stack by conductive atomic force microscopy
Authors: Vorontsov V A , Antonov D A , Kruglov A V , Antonov I N , Shenina M E , Kotomina V E , Shengurov V G , Denisov S A , Chalkov V Yu , Pavlov D A , Filatov D O , Gorshkov O N 
Published: December 2021

Abstract
We report on an experimental study of resistive switching (RS) of individual dislocations in Ag/Ge/Si(001) memristors by combined grazing incidence ion sputtering of the Ag electrodes and application of Conductive Atomic Force Microscopy to provide an electrical contact to individual Ag-filled dislocations in the Ge layer. Two types of RS were observed corresponding to two different RS mechanisms: (i) drift of Ag+ ions inside the dislocation cores and (ii) RedOx reactions in residual GeO
x
in the etch pits on the Ge layer surface.
Monolithic transistor switch for microwave radiometry
Authors: Tikhomirov V G , Solov’ev Yu V , Gudkov A G , Popov M K , Chizhikov S V 
Published: December 2021

Abstract
Modern medical microwave diagnostic equipment requires the application of solutions related to the compactness of the developed devices and high performance. Ensuring these requirements is possible by using a modern semiconductor component base based on A3B5 compounds. One of the promising materials for this purpose is gallium nitride. The paper presents the design and manufacturing technology of one of the main control elements of the microwave signal in microwave radiothermometer - monolithic AlGaN/GaN/SiC HEMT SPDT transistor switch.
LK-5 glass surface modification by glass blowing method based on microsystem technology
Authors: Dzhinikashvili A , Enns Y , Kleimanov R , Kazakin A 
Published: December 2021

Abstract
This paper considers the possibility of modifying the surface LK-5 glass by glass blowing methods to solve the problems of creating an atomic clock and ensuring a controlled distribution of metal nanoparticles on its surface. The evolution of the formation of a spherical profile of a glass surface on a hermetically welded cavity in a glass-silicon system was studied experimentally and theoretically. Also, the possibility of modifying the spatial parameters of arrays of nanoparticles distributed on the glass surface has been demonstrated. The obtained experimental and theoretical data demonstrate sufficient convergence.
Four-point probe stand for magnetoresistance measurement of unpatterned sample
Authors: Pestova A N , Trushin O S 
Published: December 2021

Abstract
An experimental stand for express diagnostics of multilayer spin tunnel structures has been developed. The current-in-plane tunnelling method (CIPT) requires no processing, is fast, and provides reliable data which are reflective of the deposition only. The stand is based on the four-probe method for measuring resistance at external alternating magnetic field. This technique can be applied after only a short processing route, thereby saving time and resources, and reducing the potential for damaging the junction.
Method for reducing phase fluctuations of a precision frequency response meter for microwave quantum generators
Authors: Vodopyanov M A , Menzorov K A , Davydov V V , Rud V Yu 
Published: December 2021

Abstract
The principle of operation of the device for measuring frequency characteristics is considered. Block diagram of a device for measuring the frequency characteristics of a digital frequency comparator with correlation quadrature processing and description of their components is illustrated. The block diagram of the frequency multiplier is given. The accuracy characteristics of the developed meter design are evaluated. They are compared with the characteristics of previously used devices. The Improve accuracy characteristics and increased stability of operation were found.
Features of Degradation of Silicon-based Solar Photovoltavic Cells
Authors: Boudjemila Linda , Davydov V V , Malyshkin V G , Rud V Y 
Published: December 2021

Abstract
This work intends to present a method for efficient analysis of the phenomenon of degradation in photovoltaic cells in Saint Petersburg (Russia) and Algiers (Algeria). The data used contain weather parameters (T°, wind, solar radiation) for 10 years. The rates of degradation of Si- photovoltaic cells were obtained from the data. It was noted from the results of comparing various data that the main factor in the formation of the degradation process is the technology of manufacturing photovoltaic cells.
A comprehensive study of current-crowding effect in high power vertical AlInGaN LEDs under high pulsed current
Authors: Ivanov A E , Aladov A V , Atalnishnikh N , Chernyakov A E , Zakgeim A L 
Published: December 2021

Abstract
The goal of the study is examination of current-crowding effect in high power AlInGaN LEDs. This effect was presented by mapping of EL (electroluminescence) near filed under high pulse current. LED chip of vertical design was study in high range of current (10−9 ÷ 70A). This operating mode of LEDs are interesting for different applications, such as pumping lasers, VLC and LiFi, as well as for investigation accelerated degradation process of LEDs.
Optimization of the profile and material of wire contacts for an IR photodetector
Authors: Kamarchuk A V , Bauman D A , Marchenko A I 
Published: December 2021

Abstract
The study is devoted to the influence of the choice of geometry and materials of wire contacts on the reflection coefficient and thermal characteristics of the photodetector and the quality of the device design. The process of diffusion of materials of wire contacts and contact pads on a photodetector crystal is investigated. The studies were carried out on samples that are rather small in size (250x250x400 um). During the experiment, 4 main types of loop geometry were selected (main loop, reverse loop, double reverse loop, long loop). The loops were formed using a gold wire 25 μm in diameter. The quality of microwelds was investigated in 3 ways: shear and pull-off tests, optical observation using a scanning electron microscope (SEM), and contact resistance measurement. The aim of the work is to create a high-quality design of an IR photodetector, which allows achieving a high sensitivity (at least 0.5 A / W), a large dynamic range (at least 40 dB) and low indicators of dark current values. The developed technology ensures high quality of the photodetector design. Due to the low costs of this technological process (wire material, the number of operations required for installation), relative to other technologies, which allows maintaining high performance in the technical component of the photodetector, the installation method may be of practical interest in production.
Optimization of THz quantum cascade lasers with an active module based on two-quantum wells for high-temperature operation
Authors: Khabibullin R A , Ponomarev D S , Ushakov D V , Afonenko A A 
Published: December 2021

Abstract
Over the past two decades, the operation temperature of terahertz quantum cascade lasers (THz QCLs) has continuously increased from cryogenic level to the current record value of 250 K (about -23°C) [1]. Here we review the state-of-the-art and future prospects of high-temperature THz QCL designs with two-quantum wells in active module based on conventional heterojunction GaAs/AlGaAs and alternative material system HgCdTe. We have analyzed the temperature dependence of the peak gain and predicted the maximum operation temperatures of the given designs.
Photon counting statistics with imperfect detectors
Authors: Reutov Aleksei , Sych Denis 
Published: December 2021

Abstract
Measurement of photon statistics is an important tool for the verification of quantum properties of light. Due to the various imperfections of real single photon detectors, the observed statistics of photon counts deviates from the underlying statistics of photons. Here we analyze statistical properties of coherent states, and investigate a connection between Poissonian distribution of photons and sub-Poissonian distribution of photon counts due to the detector dead-time corrections. We derive a functional dependence between the mean number of photons and the mean number of photon counts, as well as connection between higher-order statistical moments, for the pulsed or continuous wave coherent light sources, and confirm the results by numerical simulations.
Development of a light control system using an optical aerial information transmission system
Authors: Savin D D , Davydov V V , Rud V Yu 
Published: December 2021

Abstract
The inefficiency of the use of electric energy for indoor lighting is shown. The necessity of modernization of lighting control systems in the workplace area is justified. The method of automatic control and adjustment of illumination of workplaces and zones where it is necessary is offered. A control system has been developed, which is integrated into the air optical information transmission system (Internet). The simulation of the system operation is carried out, its parameters are calculated. The main characteristics are measured.
Femtosecond laser synthesis and comparative analysis of fluorescent carbon dots from L-lysine aqueous solution
Authors: Astafiev A A , Shakhov A M , Gulin A A , Vasin A A , Gubina M V , Syrchina M S , Nadtochenko V A 
Published: December 2021

Abstract
Laser synthesis of fluorescent species from biomolecules in living cells and tissues offers unique capabilities for fluorescent bioimaging, yet little is known about its mechanisms and characteristics of products. We examine synthesis of fluorescent products from water solution of L-lysine upon irradiation by trains of femtosecond laser pulses with varying parameters. We demonstrate that irradiation products contain nanoscale carbon-based fluorescent particles (carbon dots) with multi-colour and excitation-dependent emission. Morphology, chemical composition and fluorescent characteristics of irradiation products strongly depend on laser pulses parameters.
Microfluidic chips for real-time PCR
Authors: Zubik A N , Rudnitskaya G E , Bulyanitsa A L , Lukashenko T A , Evstrapov A A 
Published: December 2021

Abstract
The results of real-time PCR in single-chamber microfluidic chips made of silicon-glass materials and optically transparent polymethyl methacrylate are presented. Conditions for efficient thermal cycling in microchip devices with several reaction chambers are discussed. A simplified theoretical estimation of the duration of heating a liquid in a polymer microchip is proposed, the results of which correlate with experimental data.
Encapsulation of Recrystallized Inorganic Perovskite Quantum Dots in Nonwoven Fluoropolymer Fibers
Authors: Baeva M , Neplokh V , Markina D I , Pavlov A M , Kirilenko D A , Mukhin I S , Pushkarev A P , Makarov S V , Serdobintsev A A 
Published: December 2021

Abstract
Since emerging Metal Halide Perovskites were attracting elevated attention from scientific and industrial communities. Although, we still yet to see commercial products based on perovskite materials a significant body of work has been already done. Here we present our own method of Metal Halide Perovskites integration into possible industrial applications. Our way of Perovskite Quantum Dots encapsulation in polymer fibers provides exceptional water and ambient stability as well as optimal photoluminescence.
On necessity for analytical solution of the Bloch equations for nuclear magnetic resonance signals at condition express control of liquid medium
Authors: Davydov M N , Davydov V V , Rud V Yu 
Published: December 2021

Abstract
The necessity of using express analysis methods to control medium condition is substantiated. It has been shown that the method of express control based on the phenomenon of nuclear magnetic resonance is one of the most preferable. It was found that to increase the information about the medium condition state obtained from the recorded NMR signal, it is necessary to use a mathematical model (based on analytical solutions of the Bloch equations). Two approaches are considered that are used to describe the NMR signal in a liquid medium. It is determined that in the classical approach in the system of Bloch equations it is possible to take into account the peculiarities of using radiotechnical methods of signal registration. The direction of the analytical solution of the Bloch equation is proposed. The experimental data are compared with the numerical solution.
Fiber-optic sensor for remote monitoring the γ-radiation of various powers
Authors: Dmitrieva D S , Davydov V V , Rud V Y 
Published: December 2021

Abstract
The necessity of improving the metrological characteristics and functional capabilities of the fiber-optic sensor for measurements at the large distances (more than 10 km) is substantiated. The new method for constructing a communication line with the fiber-optic sensor for controlling exposure dose in a large range of its variation (several orders of magnitude) in a remote mode is proposed. The functional capabilities of the sensor are determined; its connection setup and measurement limits are developed. The experimental results are presented.
Structure and spectral properties of Fe:ZnAl2O4 transparent glass-ceramics and ceramic
Authors: Eremeev K , Basyrova L , Dymshits O , Balabanov S , Belyaev A , Alekseeva I , Khubetsov A , Tsenter M , Volokitina A , Zhilin A , Popkov V , Loiko P 
Published: December 2021

Abstract
Transparent glass-ceramics based on iron-doped ZnAl2O4 (gahnite) nanocrystals were prepared by melt-quenching (at 1580 °C) with subsequent heat-treatments (at 720 – 1050 °C). Polycrystalline transparent Fe:ZnAl2O4 ceramic was synthesized by hot pressing of powders (at 1600 °C, 50 MPa) using the sintering additive, ZnF2. A comparative study of the structure, Raman spectra and absorption properties of these materials was performed.
On the possibility of using the optical method for express quality control of fruits
Authors: Gryaznova E M , Davydov V V , Rud V Y 
Published: December 2021

Abstract
The necessity of express control of fruit quality in various situations has been substantiated. Various methods for the implementation of express control of fruit quality in express mode are considered. A method for express control of fruit quality using laser radiation has been developed. The change in the degree of spatial coherence in the recorded reflected laser radiation from defects on the surfaces of fruits was investigated. Experimental results of the study of various defects on fruits, as well as their hardness and degree of ripening, are presented using the method developed by us.