Hengzongshu/ArticleAgent huggingface dataset:
Results of experimental studies of round and plane propane microjet combustion in a transverse acoustic field at small Reynolds numbers are presented in this paper.

Features of flame evolution under the given conditions are shown. Based on the new information obtained on free microjet evolution,

new phenomena in flame evolution in a transverse acoustic field with round and plane propane microjet combustion are discovered and explained.
traditional anodic wire arrays, more traditional wire chambers

novel detector for ionization signals in a single phase LAr-TPC, based on the adoption of a multilayer Large Electron Multiplier (LEM) replacing the traditional anodic wire arrays, Cosmic muon tracks were detected allowing the measurement of energy deposition

analysis of the recorded events demonstrated the 3D reconstruction capability of this device for ionizing events in liquid Argon, collected fraction of ionization charge is close to about 90%, with signal to noise ratio similar to that measured with more traditional wire chambers
Complex dynamic tomographic experiments at brilliant X-ray light sources require real-time feedback on the sample changes with respect to environmental conditions, selecting representative regions of interest for high-resolution scanning, and on-demand data saving mechanisms for storing only relevant projections acquired by fast area detectors and reducing data volumes. Here the implementation details of a 3D real-time imaging monitoring instrument, with zooming to a volume of interest with easy-to-use visualization via ImageJ, a tool familiar to most beamline users, is presented. The instrument relies on optimized data flow between the detector and processing machines and is implemented on commodity computers. The instrument has been developed at beamline 2-BM of the Advanced Photon Source, where the automatic lens changing mechanism for zooming is implemented with an Optique Peter microscope. Performance tests demonstrate the ability to process more than 3 GB of projection data per second and generate real-time 3D zooming with different magnification. These new capabilities are essential for new APS Upgrade instruments such as the projection microscope under development at beamline 32-ID. The efficacy of the proposed instrument was demonstrated during an in situ tomographic experiment on ice and gas hydrate formation in porous samples.
The aim of the study was to determine the impact of stress on work on the risk of cardiovascular disease over a 16-year period in an open population of 25-64 years in Russia/Siberia.

Materials and methods. A random representative sample of the population of both sexes of 25-64 years old in Novosibirsk in 1994 (men: n=657, 44.3±0.4 years, response - 82.1%, women: n=689, 45.4±0.4 years, response - 72.5%). The screening survey program included: registration of socio-demographic data, determination of stress at work (Karazek scale). The period of prospective follow-up of participants was 16 years. The study identified the following 'end points': the first cases of myocardial infarction (MI), stroke. Results. A high level of stress at work was in 29.5% of men and 31.6% of women, the average level in 48.9% of men and 50.7% of women (χ2=2.574, υ=2, p=0.276). The risk of developing MI for a 16-year period, among people experiencing stressful situations at work, was: in men, HR=3.592, and women HR=3.218 (95% CI 1.146-9.042); stroke risk - among men, HR=2.603 (95% CI 1.06-4.153) in women HR=1.956 (95% CI 1.008-3.795). In multivariate analysis, in men with stress at work, the risk of MI among men was HR=1.15 (95% CI 0.6-2.2), among women - HR=2.543 (95% CI 1.88-7.351); risk of stroke, was in men, HR=3.8 (95% CI 1.6-8.8), in women - HR=1.95 (95% CI 0.984-3.887). The risk of stroke was higher among single, divorced and widowed men, HR=4.2 (95% CI 1.5-13.2), and in women with secondary or primary education, HR=3 (95% CI 0.852-11.039).

Conclusion. It was established that a high level of stress at work is not gender-specific; the risk of developing MI over a 16-year period is higher in women than in men, stroke in men; the risk of myocardial infarction and stroke in both sexes is affected by the social gradient.
Human uracil-DNA glycosylase SMUG1 removes uracil residues and some other noncanonical or damaged bases from DNA. Despite the functional importance of this enzyme, its X-ray structure is still unavailable. Previously, we performed homology modeling of human SMUG1 structure and suggested the roles of some amino acid residues in the recognition of damaged nucleotides and their removal from DNA. In this study, we investigated the kinetics of conformational transitions in the protein and in various DNA substrates during enzymatic catalysis using the stopped-flow method based on changes in the fluorescence intensity of enzyme’s tryptophan residues and 2-aminopurine in DNA or fluorescence resonance energy transfer (FRET) between fluorophores in DNA. The kinetic mechanism of interactions between reaction intermediates was identified, and kinetic parameters of the intermediate formation and dissociation were calculated. The obtained data help in elucidating the functions of His239 and Arg243 residues in the recognition and removal of damaged nucleotides by SMUG1.
Olivine from the deep mantle-derived rocks, such as ultramafic lamprophyres, carries important information about the composition of the mantle source, the processes of mantle metasomatism, the origin of specific silicate-carbonate melts, as well as the composition and mechanisms of crystallization of these rocks.

Textures and compositions of olivine from the carbonate-rich ultramafic lamprophyres (aillikites) of the Terina complex, along with their mineral and melt inclusions, exposed that olivines have different sources. Two populations of olivines were considered: macrocrysts (>1 mm) and groundmass olivines (<1 mm). Groundmass olivines are phenocrysts and characterized by weak variations in Mg# (84–86.5), a sharp increase in Ca and Ti contents, and a decrease in Ni and Cr from core to rim. They have higher concentrations of Li, Cu, Ti, and Na compared to macrocrysts. Among the macrocrysts, the following populations are observed: (1) high-Mg olivines (Mg# 89–91) with high Ni and low Ti contents, which are interpreted as xenocrysts from the slightly depleted lherzolite mantle; (2) high-Ca olivines (Mg# 84–88, CaO 0.13–0.21 wt %), which have patterns similar to groundmass olivines and are interpreted as cumulates of early portions of aillikite melt; (3) macrocrysts with wide variations in Mg# (73–88), low CaO contents (0.04–0.11 wt %), and positive slope in Ca vs. Al and negative slope in Ca vs. Mn, which are interpreted as disintegrated megacrysts from the Cr-poor megacryst suite.

The megacryst suite could have been formed in the pre-trap period during the melting of the metasomatized subcontinental lithospheric mantle (SCLM). The aillikite melt evolution is traced by secondary melt inclusions in olivine macrocrysts: early phlogopite-diopside-calcite-apatite association, containing Ti-magnetite and ilmenite, is followed by an association with magnetite and sulfides (pyrrhotite and pentlandite); finally, at a late stage, inclusions with a predominance of Ca-Na-carbonates and sulfates and enriched in U, Th, Y, REEs, Sr, and Ba were captured.
The process e+e- --> p anti-p has been studied in the p anti-p mass range from threshold to 6.5 GeV/c^2 using the initial-state-radiation technique with both detected and undetected photon. The analysis is based on 469 fb-1 of integrated luminosity collected with the BABAR detector at the PEP-II collider at e+e- center-of-mass energies near 10.6 GeV.
Flames propagating above the surface of n-butanol in mini and microchannels have been investigated experimentally. It was determined that when oxygen is used as an oxidant, the critical channel size is about 0.3 mm, and according to the estimates this corresponds to the critical size for a premixed homogeneous gas mixture.

In order to understand the mechanism of flame propagation above the surface of liquid, in this study, we attempted to simulate the processes, occurring in liquid. The problem of 'thermal wave' propagation in a horizontal rectangular channel, when the liquid film moves under the action of gas flow, was studied theoretically. The analysis was carried out taking into account evaporation, specific heat release, and radiation and absorption processes in the gas and on the free surface, as well as the formed zone of strong heating above the liquid film surface for low oxidant velocities in the channel.

Based on data obtained, it can be concluded that at high concentration of oxygen and low oxidant velocities, the experimental value of velocity coincides with the calculated value with satisfactory accuracy.
Background. The problem of studying the development of stroke in men of working age working in conditions of high professional risk is relevant. Aim of the research. To develop a method for predicting the development of stroke in men working under conditions of exposure to toxic dust factors. Materials and methods. The study included 111 men aged 30 to 65 years who worked for 5 or more years in the following professions: electric gas welder, gas welder, smelter. The study participants were divided into two groups: the first group – 45 men who had a stroke; the second group – 66 men who did not have stroke history. The subjects of both groups were comparable in terms of occupational structure, age and length of service. Using the method of sequential inclusion of the studied risk factors for stroke development (Forward Stepwise), we determined those that made a significant contribution to the possible development of stroke. Results. Based on multivariate analysis, a logistic regression formula was derived that determines the likelihood of a stroke in patients working under the influence of the toxic dust factor, which included the following factors: the presence of dyslipidemia factor (β-coefficient = 3.7; p = 0.001), the patient’s diagnosis is “stage III arterial hypertension” (β-factor = 5.6; p = 0.002), blood pressure control (β-factor = –3.4; p = 0.005). The patient determines the value of these three parameters, substitutes the appropriate formula for calculating the value of p(X). A value of p(X) in excess of 0.5 indicates a high risk of stroke in men working under conditions of exposure to toxic dust factors. The sensitivity of the proposed method was 84.4 %, specificity – 92.4 %. Conclusion. The multivariate model is informative for the individual prediction of the development of stroke in men working under the influence of the toxic-dust factor, since it reflects the degree of influence of one or another factor on the development of the disease.
The article deals with the importance of a modern university teacher (and mentor) for the future students who will help them to become a qualified candidate in the chosen specialty. As the title implies, the article describes the leadership skills of a mentor, his knowledge and his attitude to work.

The aim of the article is to show that the teacher (mentor) has to be constantly developing and take additional courses, lectures, and engage in self-development. Much attention is given to communication with students and the personality of a teacher and such features as sense of humor, responsibility, independence, kindness and so on.

The results show that the successful mentor should completely trust students, learn from them and help students to identify their weaknesses and get rid of them as well as develop his own soft skills. Summing up the results, it can be concluded that a successful modern teacher (mentor) must keep up with modern changes of education and be creative, smart, charismatic and thirsty for the knowledge as well as to be a good psychologist. Higher education teachers should constantly undergo additional retraining, and remain a person-example for students who is interesting to listen to and who can be trusted.
In the present paper we show our recent experimental data on diffusion combustion of a round hydrogen microjet in a cocurrent flow of air mixed with nanoparticles of TiO2. The hydrogen microjet is emanated from a round micronozzle which is surrounded by a coaxial slit to produce the cocurrent flow. Combustion events found in the present conditions are similar to those observed in the previous studies on diffusion combustion of hydrogen microjets at subsonic and supersonic velocities. In a subsonic range, the so-called “bottleneck-flame region” is generated close to the nozzle exit, while in high-speed conditions the flame separates from the nozzle. At increasing velocity of both the hydrogen microjet and the cocurrent flow, the “bottleneck-flame region” is still found and the combustion becomes more intense. The “bottleneck-flame region” is suppressed at the microjet velocity approaching transonic values.
We experimentally demonstrate a pulsed operation in a random fiber laser operation via self-gain-switching.

The pulses have low timing jitter and high average output power. We show that repetition rate switches abruptly while varying the pump power,

and introduce a simple formula for oscillation frequencies.
Plasma outflow through helically corrugated mirrors is influenced by its E × B rotation due to friction between the trapped and passing particles. If the relative velocity of these populations exceeds the thermal velocity, the onset of the two-stream instability will make the friction effective even in weakly-collisional plasmas. This regime can be achieved by plasma biasing. The momentum transfer between the plasma and the magnetic corrugation is accompanied by radial drifts and currents. The radial pinch effect is shown to be proportional to the axial pressure gradient that is created by the helical mirror. However, it can be directed either to or from the axis, depending on the symmetry of the helix and the sign of biasing. Equations of the transport model are presented and analyzed.
Polymerization was carried out using the method of radiation initiation, for which benzyl methacrylate (BzMA) and isodecyl methacrylate (IDMA) were treated with a beam of accelerated electrons. It is shown that to obtain highly filled compositions, the most suitable method is the alternation of heating-cooling cycles with the gradual introduction of material particles.

Tungsten composites were obtained with a calculated density in the range from 3 to 6.8 g / cm 3 . The absence of percolation conductivity in coatings with tungsten was found. Peel adhesion of the composite coating to the surface was 1 ± 0.3·10 -1 MPa with volume fraction of tungsten more than 30%.
Coal is one of the most popular sources of energy. However, it has a relatively low energy efficiency due to high humidity and a greater release of harmful substances during combustion. On the other hand, the coal reserve on earth is estimated at 500 years and the cost is relatively low. This causes the search for new ways of processing coal.

One way to efficiently process coal, while reducing the humidity and content of harmful components is microwave treatment. The basic information for microwave exposure to coal is the temperature field. In this paper, an approximate-analytically nonlinear mathematical model for heating a flat coal mass is studied, provided that the absorbed microwave energy is removing by heat radiation and convection simultaneously.
When modeling flows of an incompressible fluid, it is convenient sometimes to use the method of discrete vortices (MDV), where the continuous vorticity field is approximated by a set of discrete vortex elements moving in the velocity field. The vortex elements have a clear physical interpretation, they do not require the construction of grids and are automatically adaptive, since they concentrate in the regions of greatest interest and successfully describe the flows of a non-viscous fluid.

The possibility of using MDV in simulating flows of a viscous fluid was considered in the previous papers using the examples of flows past bodies with sharp edges with the no-penetration condition at solid boundaries. However, the appearance of vorticity on smooth boundaries requires the no-slip condition to be met when MDV is realized, which substantially complicates the initially simple method.

In this connection, an approach is considered that allows solving the problem by simple means.
Surveys of the ion and electron heat transports of neutral beam (NB) heating plasma were carried out by power balance analysis in He and H rich plasma at LHD.

Collisionality was scanned by changing density and heating power. Scans of concentration ratio between He and H were also performed. The ion confinement improvements were investigated using gyro-Bohm normalization, taking account of the effective mass and charge.

The characteristics of the transport vary depending on collisionality. In low collisionality, with low density and high heating power, an ion internal transport barrier (ITB) was formed. The ion heat conductivity (χi) is lower than electron heat conductivity (χe) in the core region at ρ < 0.7. On the other hand, in high collisionality, with high density and low heating power, χi is higher than χe across the entire range of plasma. These different confinement regimes are associated with different fluctuation characteristics. The two confinement modes change gradually depending on the collisionality. The concentration ratio affected the normalized χi only in the edge region (ρ ~ 1.0). This indicates ion species effects vary depending on collisionality. Turbulence was modulated by the fast ion loss instability. The modulation of turbulence is higher in H rich than in He rich plasma.
En Siberia los morfotipos de Cloudina han sido tradicionalmente considerados como una variedad tafonómica de conchas de Anabarites, insertadas una dentro de otra, bajo condiciones hidrodinámicas específicas.

Las asociaciones de conchas cónicas telescópicas son omnipresentes en el Grupode Kessyusa y en estratos contemporáneos a lo largo de Siberia, y no todos ellos pueden ser fácilmente interpretados como resultado de un simple apilamiento mecánico.

Queda por ver si alguna de estas bioacumulaciones representa una asociación de vida de una estructura morfotípica de tipo Cloudina.
A method proposed to preserve the electron beam polarization at the VEPP-4M collider during acceleration with crossing the integer (imperfection) spin resonance at energy $E=1763\text{ }\text{ }\mathrm{MeV}$

It is based on full decompensation of the $0.6\ifmmode\times\else\texttimes\fi{}3.3\text{ }\text{ }\mathrm{Tesla}\ifmmode\times\else\texttimes\fi{}\text{meter}$ integral of the KEDR detector longitudinal magnetic field due to the antisolenoid being ``switched off.''

has been successfully applied.
We experimentally study spatio-temporal generation of extreme events in the radiation of NPE mode-locked fibre laser generating noise-like pulses.

We show that new pulses starts from high-intensity spatio-temporal structure which consist of mainly 3 subsequent pulses which are both separated over fast and slow evolution time. Statistical analysis of the noise-like pulse evolution over round-trips shows that the pulse width and intensity varies with a period of around 85 round-trips which does not change from pulse to pulse.

The intensity probability density function has a heavy tail originated only from events of pulse formation.
The co-crystallisation of [NiEn3](NO3)2 (En = ethylenediamine) with Na2MoO4 and Na2WO4 from a water solution results in the formation of [NiEn3](MoO4)0.5(WO4)0.5 co-crystals. According to the X-ray diffraction analysis of eight single crystals, the parameters of the hexagonal unit cell (space group P-31c, Z = 2) vary in the following intervals: a = 9.2332(3)-9.2566(6); c = 9.9512(12)-9.9753(7) Å with the Mo/W ratio changing from 0.513(3)/0.487(3) to 0.078(4)/0.895(9).

The thermal decomposition of [NiEn3](MoO4)0.5(WO4)0.5 individual crystals obtained by co-crystallisation was performed in He and H2 atmospheres.

The ex situ X-ray study of thermal decomposition products shows the formation of nanocrystalline refractory alloys and carbide composites containing ternary Ni-Mo-W phases. The formation of carbon-nitride phases at certain stages of heating up to 1000 °C were shown.
The aim of the work was to study the clinical significance of the genetic polymorphism of the adhesion factor - the genetic locus rs602662 FUT2 in Helicobacter pylori-associated diseases. Methods: The study included 91 patients. The study for the presence of the polymorphic locus rs602662 of the FUT2 gene was carried out by the standard TaqMan PCR method on a “Real-Time CFX96 Touch” amplifier. The duration of the study was 6 months. Results: When assessing the contribution of the genotype of the rs602662 locus of the FUT2 gene as a risk factor for the occurrence of clinical manifestations in H. pylori infection, it was found that the A allele has a protective effect on the occurrence of clinical symptoms of dyspepsia. The odds ratio (OR) for allele “A” carriers (genotypes A/A and G/A versus G/G) to have clinical symptoms with a positive H. pylori status was 0.175 (CI=[0.049-0.625] chi2=7.79 p=0.0053). Conclusion. As a result of the study, it was revealed that the carriage of the “A” allele has a significant associative relationship with the absence of clinical symptoms in patients with H. pylori infection 0.175 (C.I.= [0.049-0.625] chi2=7.79 p=0.0053).
We review three laser spectroscopy schemes developed recently for observation of high-contrast enhanced-absorption nonlinear resonances in small alkali-vapor cells. In our experiments, optical transitions within the cesium D1 line are involved and a probe beam transmission is analyzed. The first spectroscopy method is based on the configuration with two-frequency counter propagating beams, which are linearly polarized in orthogonal directions. This configuration provides observation of high-contrast natural-linewidth resonances superimposed on broad Doppler profiles when the laser frequency is scanned. These resonances have good prospects for developing a miniature optical frequency reference. The second scheme involves two-frequency counter propagating beams with equal circular polarizations and provides observation of subnatural-linewidth resonances when the Raman frequency detuning is scanned. We use these resonances for stabilizing the microwave frequency of a local oscillator (≈ 4.6 GHz). Frequency stability of around 6 × l0 -12 is achieved at 1-s averaging using a 5-mm length cell. This result makes the technique attractive for developing a miniature frequency standard in thr microwave range. The third configuration exploits single-frequency counter-propagating beams with linear orthogonal polarizations. The ultrahigh-contrast subnatural-linewidth resonances can be observed when the longitudinal magnetic field is scanned around zero. The possible application is discussed of these resonances in vector atomic magnetometry.
This article presents new data on nucleotide incision repair (NIR) activity of apurinic/apyrimidinic endonuclease Apn1 of Saccharomyces cerevisiae, which is known as a key player of the base excision DNA repair (BER) pathway, see "Yeast structural gene (APN1) for the major apurinic endonuclease: homology to Escherichia coli endonuclease IV" [1], "Abasic sites in DNA: repair and biological consequences in Saccharomyces cerevisiae" [2] and "Characterisation of new substrate specificities of Escherichia coli and Saccharomyces cerevisiae AP endonucleases" [3]. The characterization of NIR activity of wild type Apn1 and mutant form Ape1 H83A were made by denaturing PAGE analysis, and MD simulations of Apn1 complexed with DNA containing 5,6-dihydro-2'-deoxyuridine (DHU) and 2-aminopurine (2-aPu) residues. This data article is associated to the manuscript titled "Apurinic/apyrimidinic endonuclease Apn1 from Saccharomyces cerevisiae is recruited to the nucleotide incision repair pathway: kinetic and structural features" [4]. Published by Elsevier Inc. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).