Hengzongshu/ArticleAgent huggingface dataset:
Given their context, motifs, and style, they were apparently ritual artifacts. Human-like, animal-like, and bird-like figures limn mythological ideas. They are so unusual that we may speak of a separate style. Despite being very different, all the figurines have common features, both artistic and iconographic.

This article introduces an unusual complex of anthropomorphic and zoomorphic artifacts from a Bronze Age cemetery at the Tourist-2 settlement, situated in the center of Novosibirsk.

They are generally rather realistic, showing similar features such as tattoo. Yet they are stylized and share certain conventions attesting to an established canon. All these characteristics, as well as the context, suggest that the representations belong to a single style that we tentatively refer to as 'Krokhalevka' style— a distinct variety of Siberian native ritual art. In our view, this style is autochthonous, originating from local Neolithic art under a marked influence of adjacent Early and Middle Bronze Age cultures, such as Okunev, Karakol, Samus, Krotovo, and Odinovo. Judging by the motifs and manner, the 'Krokhalevka' tradition might have affectedKulai art, especially repousse.
The Novosibirsk Free Electron Laser (NovoFEL) is based on a four-turn microtron-recuperator. To ensure its stable operation and radiation generation, it is necessary to provide a stable mode of electron beam recirculation and minimize beam losses on the vacuum chamber wall on all the beam way in the accelerator beamline.

A system for registration of beam losses was created. The system applies optical fibers placed along the vacuum chamber and nearby it. If local electron beam losses occur somewhere in the vacuum chamber, electrons falling to the vacuum chamber wall cause generation of X- and gamma rays. This radiation in turn originates optical emission in an optical fiber nearby the region of electron 'precipitation' on the chamber wall.

Then, executing some transformation and processing of the time dependencies of signals from these optical fibers, one can obtain the longitudinal distribution of electron beam losses along the accelerator line in all its four turns.
The article presents an overview of key scientific and corporate events held between 2017–2019 hosted by the Oriental Studies and Foreign Languages Departments of the Institute of Humanities of Novosibirsk State University in close partnership with the Eurasia-Pacific University Network and the University of Vienna (Austria). The listed conferences, expos and field trips were held at the academic sites of Austria, Russia and China (Hong Kong), opening up prospective plans for joint research.
In this paper an algorithm for constructing ENO schemes on unstructured grids for Navier-Stokes equations supplemented by the equations for the concentrations of chemicals is considered. A second order accuracy scheme, based on the linear reconstruction of a function in cells, is presented. The mathematical model was verified on the task of analyzing the gas-dynamic parameters of the gross reaction of ethane pyrolysis.
Ðîññèÿ СЕНСОРНАЯ СИСТЕМА НА ОСНОВЕ ВОЛОКОННО-ОПТИЧЕСКИХ БРЭГГОВСКИХ РЕШЕТОКРеализована волоконно-оптическая сенсорная система на основе анализатора спектра.Погрешность определения температуры не превышает 0,5 °С.Разработано устройство опроса волоконных брэгговских сенсоров на основе узкополосного перестраиваемого эрбиевого лазера
a modification of a known Pokrovski – Vinogradov model

numerical simulations, it takes into account nonlinear effects arising in flows of melts and solutions of polymers in domains with a complex boundary geometry

In the case when the main solution is a Poiseuille-type flow in an infinite plane channel (one considers a viscoelastic polymeric fluid) we obtain an asymptotic formula for the distribution of spectrum points of the linear problem. Small perturbations have such the additional property that they are periodic with respect to the variable going along the side of the channel.
We report the results on the channels e + e − → π + π − π 0 π 0 π 0 (η), e + e − → π + π − η. Also we present the study of the two-photon process e + e − → e + e − η ' in the double-tag mode. The results for the form factor are compared with the predictions based on pQCD and VMD. The results are obtained by using the full data set of about 470 fb −1 collected by the BABAR experiment at the PEP-II e + e − collider at a center-of-mass energy of about 10.6 GeV.
Several mutations were introduced into the putative serine protease domain of the tick-borne encephalitis virus NS3 protein and into a possible internal cleavage site within the protein. The influence of these mutations on proteolytic activity of NS3 protein and NS3' protein formation was tested in vitro. It was found that NS3' formation was not dependent on the activity of the NS3 N-terminal serine protease. Mutations affecting the Ser-138 residue of the NS3 protein prohibited cleavage between NS2B and NS3 proteins when the NS2B-NS3 part of the viral genome was expressed in vitro, suggesting the key role of Ser-138 in viral serine protease functioning.
The noncatalytic bromination of benzene is shown experimentally to require high 5-14 M concentrations of bromine to proceed at ambient temperatures to form predominantly bromobenzene, along with detectable (<2%) amounts of addition products such as tetra and hexabromocyclohexanes. The kinetic order in bromine at these high concentrations is 4.8 ± 0.06 at 298 K and 5.6 ± 0.11 at 273 K with a small measured inverse deuterium isotope effect using D6 -benzene of 0.97 ± 0.03 at 298 K.

These results are rationalized using computed transition states models at the B3LYP+D3/6-311++G(2d,2p) level with an essential continuum solvent field for benzene applied. The model with the lowest predicted activation free energies agrees with the high experimental kinetic order in bromine and involves formation of an ionic, concerted, and asynchronous transition state with a Br8 cluster resembling the structure of the known Br9 (-).

This cluster plays three roles; as a Br(+) donor, as a proton base, and as a stabilizing arm forming weak interactions with two adjacent benzene CH hydrogens, these aspects together combining to overcome the lack of reactivity of benzene induced by its aromaticity. The computed inverse kinetic isotope effect of 0.95 agrees with experiment, and arises because C-Br bond formation is essentially complete, whereas C-H cleavage has not yet commenced. The computed free energy barriers for the reaction with 4Br2 and 5Br2 for a standard state of 14.3 M in bromine are reasonable for an ambient temperature reaction, unlike previously reported theoretical models involving only one or two bromines.
In this article, we will present the results of Artin–Markov on braid groups by using the Gröbner–Shirshov basis.

by using the Gröbner–Shirshov basis

As a consequence, we can reobtain the normal form of Artin–Markov–Ivanovsky as an easy corollary.
DNA replication initiates at specific positions termed replication origins. Genome-wide studies of human replication origins have shown that origins are organized into replication initiation zones. However, only few replication initiation zones have been described so far. Moreover, few origins were mapped in other mammalian species besides human and mouse. Here we analyzed pattern of short nascent strands in the X inactivation center (XIC) of vole Microtus levis in fibroblasts, trophoblast stem cells, and extraembryonic endoderm stem cells and confirmed origins locations by ChIP approach. We found that replication could be initiated in a significant part of XIC. We also analyzed state of XIC chromatin in these cell types. We compared origin localization in the mouse and vole XIC. Interestingly, origins associated with gene promoters are conserved in these species. The data obtained allow us to suggest that the X inactivation center of M. levis is one extended replication initiation zone.
A Gaussian model of a vortex tangle is used to calculate the energy spectrum E(k) of a three-dimensional random velocity field induced by chaotic vortex lines. It is proposed that the lines have a random-walk structure (Brownian line) with different Hausdorff dimension HD. It is shown that for a fractal vortex line characterized by HD the energy spectrum has the form E(k)∼kHD−2 for large k and the universal form E(k)∼k2 for small k. The characteristics at short distances from a vortex line are similar to a smooth line.
It is known that 1-naphthol, as a result of superelectrophilic (dicationic) activation in superacid media, is able to react with such deactivated aromatic compound as o-dichlorobenzene to give 4-(3,4-dichlorophenyl)-1-tetralone (2), which is a highly valuable intermediate in the synthesis of the antidepressant, sertraline (1) and other useful derivatives. However, the analogous reactivity of 2-naphthol and a variety of naphthalenediols towards o-dichlorobenzene has not been investigated thus far, although the corresponding tetralones, bearing dichlorophenyl moiety, could be of great pharmacochemical interest.

In present work, we disclose that 1,5-, 1,6-, and 1,7- naphthalenediols (6a–c) react smoothly with o-dichlorobenzene in the presence of an excess of aluminum chloride or aluminum bromide to give the pairs of isomeric 4-(3,4-dichlorophenyl)- and 4-(2,3-dichlorophenyl)- 5-, 6-, and 7-hydroxy-1-tetralones (10a–c and 11a–c) in high overall yields. 2-Naphthol and 2,7-naphthalenediol (6d) exhibited comparatively lower reactivity, which however was sufficient to obtain the corresponding dichlorophenyl-2-tetralones in moderate yields.

The mechanism of these reactions involving superelectrophilic dicationic or even tricationic intermediates, is discussed.
Despite the fact that a number of hydrocarbon fields have been discovered on the Yamal and Gydan Peninsula, including large gas fields, there is still no generalized regional model for geologists. In connection with the appearance in recent years of new geological information (2D, 3D seismic, logging, drilling of well Gydanskaya № 130), the authors believe it makes sense to reinterpret seismic data using new information too.
The contact Darwin term is demonstrated to be of the same origin as the spin-orbit interaction.

The (Zα)4m3/M2 correction to the Lamb shift, generated by the Darwin term, is found for an arbitrary nonvanishing spin of the nucleus, both half-integer and integer.

There is also a contribution of the same structure as that of nuclear quadrupole moment.
The blood realizes the transport of substances, which are necessary for livelihoods, throughout the body. The assumption about the relationship genotype and structure of vasculature (in particular of brain) is natural. In the paper we consider models of vessel net for two genetic lines of laboratory mice. Vascular net obtained as a result of preprocessing MRI data. MRI scanning is realized using the method of variation of slope of scanning plane, i.e. by several sets of parallel planes specified by different normal vectors. The following special processing allowed to construct models of vessel nets without fragmentation. The purpose of the work is to compare the vascular network models of two different genetic lines of laboratory mice.
To design an effective and safe vaccine against betacoronaviruses, it is necessary to use their evolutionarily conservative antigenic determinants that will elicit the combination of strong humoral and cell-mediated immune responses. Targeting such determinants minimizes the risk of antibody-dependent enhancement of viral infection. This phenomenon was observed in animal trials of experimental vaccines against SARS-CoV-1 and MERS-CoV that were developed based on inactivated coronavirus or vector constructs expressing the spike protein (S) of the virion.

The substitution and glycosylation of certain amino acids in the antigenic determinants of the S-protein, as well as its conformational changes, can lead to the same effect in a new experimental vaccine against SARS-CoV-2. Using more conservative structural and accessory viral proteins for the vaccine antigenic determinants will help to avoid this problem. This review outlines approaches for developing vaccines against the new SARS-CoV-2 coronavirus that are based on non-pathogenic viral vectors.

For efficient prevention of infections caused by respiratory pathogens the ability of the vaccine to stimulate mucosal immunity in the respiratory tract is important. Such a vaccine can be developed using non-pathogenic Sendai virus vector, since it can be administered intranasally and induce a mucosal immune response that strengthens the antiviral barrier in the respiratory tract and provides reliable protection against infection.
This article reviews the evolution of approaches to teaching writing in English as a native and foreign language and in Russian as a native and foreign language from a linguodidactic point of view. Many established pedagogical approaches do not have a worthy theoretical and methodological foundation and do not allow identifying a single dominating approach, but allow speaking about the expediency of integrated, comprehensive use of the best achievements of each approach in the modern methods of teaching academic writing. The genre approach in teaching writing and listening is considered a very promising direction in modern Russian as well as in foreign language teaching. This approach integrates a number of achievements of contrastive rhetoric, process writing, formation of composition skills and situational variability of writing, as well as traditional and modern technologies, such as modeling, learning by samples, etc. This approach fits into the educational paradigm of academic writing and it is in demand for the production of written texts of different levels of complexity.
Landau level spectroscopy has been employed to probe the electronic structure of the valence band in a series of p-type HgTe/HgCdTe quantum wells with both normal and inverted ordering of bands. We find that the standard axial-symmetric 4-band Kane model, which is nowadays widely applied in physics of HgTe-based topological materials, does not fully account for the complex magneto-optical response observed in our experiments - notably, for the unexpected avoided crossings of excitations and for the appearance of transitions that are electric-dipole forbidden within this model. Nevertheless, reasonable agreement with experiments is achieved when the standard model is expanded to include effects of bulk and interface inversion asymmetries. These remove the axial symmetry, and among other, profoundly modify the shape of valence bands.
Centrosome-containing cells assemble their spindles exploiting three main classes of microtubules (MTs): MTs nucleated by the centrosomes, MTs generated near the chromosomes/kinetochores, and MTs nucleated within the spindle by the augmin-dependent pathway. Mammalian and Drosophila cells lacking the centrosomes generate MTs at kinetochores and eventually form functional bipolar spindles. However, the mechanisms underlying kinetochore-driven MT formation are poorly understood.

One of the ways to elucidate these mechanisms is the analysis of spindle reassembly following MT depolymerization. Here, we used an RNA interference (RNAi)-based reverse genetics approach to dissect the process of kinetochore-driven MT regrowth (KDMTR) after colcemid-induced MT depolymerization. This MT depolymerization procedure allows a clear assessment of KDMTR, as colcemid disrupts centrosome-driven MT regrowth but allows KDMTR. We examined KDMTR in normal Drosophila S2 cells and in S2 cells subjected to RNAi against conserved genes involved in mitotic spindle assembly: mast / orbit / chb ( CLASP1 ), mei-38 ( TPX2 ), mars ( HURP ), dgt6 ( HAUS6 ), Eb1 ( MAPRE1/EB1 ), Patronin ( CAMSAP2 ), asp ( ASPM ) and Klp10A ( KIF2A ).

RNAi-mediated depletion of Mast/Orbit, Mei-38, Mars, Dgt6 and Eb1 caused a significant delay in KDMTR, while loss of Patronin had a milder negative effect on this process. In contrast, Asp or Klp10A deficiency increased the rate of KDMTR. These results coupled with the analysis of GFP-tagged proteins (Mast/Orbit, Mei-38, Mars, Eb1, Patronin and Asp) localization during KDMTR suggested a model for kinetochore-dependent spindle reassembly. We propose that kinetochores capture the plus ends of MTs nucleated in their vicinity and that these MTs elongate at kinetochores through the action of Mast/Orbit. The Asp protein binds the MT minus ends since the beginning of KDMTR, preventing excessive and disorganized MT regrowth. Mei-38, Mars, Dgt6, Eb1 and Patronin positively regulate polymerization, bundling and stabilization of regrowing MTs until a bipolar spindle is reformed.
We report on the first observations of ¯B0→D1(2430)0ω, ¯B0→D1(2420)0ω, and ¯B0→D∗2(2460)0ω decays. The ¯B0→D*+ρ(1450)− decay is also observed.

The branching fraction measurements are based on (771.6±10.6)×106 B¯B events collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e− collider.

The fractions of longitudinal polarization of the D** states as well as partial wave fractions of the D1(2430)0 are obtained. We also set a 90% confidence level upper limit for the product of branching fractions of B(¯B0→D*+b1(1235)−)×B(b1(1235)−→ωπ−). The measurements show evidence of nontrivial final-state interaction phases for the ρ-meson-like amplitudes.
With time education becomes more personified.New categories of learners join in educational processes and new areas of education appear.Brain-computer interfaces have good perspective to contribute to these tendencies.This technology may allow disabled people to participate in social life, including education, and may let healthy people to develop the skill of controlling brain waves.Training the skill is the object of investigation and researchers recommend taking into account human factors: general principles of learning, motivations, personal patterns and abilities (among them, spatial).Education may be a source of highly motivated training tasks.The paper treats brain-computer interface as a type of communication and argues for semiotic training that is a variant of training spatial abilities.Semiotic training have proved effectiveness in other areas of education.Theoretical background and preliminary empirical comments of the approach are considered.
The differential diagnosis of cognitive impairments is of great importance in mental disorders detectable in general medical practice.

Objective: to study whether Addenbrooke's Cognitive Examination — Revised (ACE-R) may be used in these patients. Patients and methods. The study was conducted in two steps at somatic hospitals and city polyclinics. It enrolled 130patients (36 men and 94 women) with anxiety-depression spectrum disorders (ADSD), mild cognitive disorders (MCD) and a concurrence of these conditions. The authors used the following psychometric scales: the hospital anxiety and depression scale; the mini-mental state examination; the frontal assessment battery; ACE-R; ten words learning test. The psychometric characteristics of ACE-R and the possibilities of its use were estimated to detect MCD. The differences in the spectrum of cognitive impairments were analyzed in patients with different types of ADSD.

Results. ACE-R is shown to be an effective neuropsychological tool for the primary diagnosis, detection, and evaluation of MCD in the general medical network. The results of ACE-R use indicate that the spectrum of cognitive impairments has substantial differences in patients with different types of non-psychotic disorders.
NMR hyperpolarization techniques enhance nuclear spin polarization by several orders of magnitude resulting in corresponding sensitivity gains. This enormous sensitivity gain enables new applications ranging from studies of small molecules by using high‐resolution NMR spectroscopy to real‐time metabolic imaging in vivo. Several hyperpolarization techniques exist for hyperpolarization of a large repertoire of nuclear spins, although the 13 C and 15 N sites of biocompatible agents are the key targets due to their widespread use in biochemical pathways. Moreover, their long T 1 allows hyperpolarized states to be retained for up to tens of minutes.

Signal amplification by reversible exchange (SABRE) is a low‐cost and ultrafast hyperpolarization technique that has been shown to be versatile for the hyperpolarization of 15 N nuclei. Although large sensitivity gains are enabled by hyperpolarization, 15 N natural abundance is only ∼0.4 %, so isotopic labeling of the molecules to be hyperpolarized is required in order to take full advantage of the hyperpolarized state. Herein, we describe selected advances in the preparation of 15 N‐labeled compounds with the primary emphasis on using these compounds for SABRE polarization in microtesla magnetic fields through spontaneous polarization transfer from parahydrogen.

Also, these principles can certainly be applied for hyperpolarization of these emerging contrast agents using dynamic nuclear polarization and other techniques.
The model is based on coupled set of non-linear Schrödinger equations for pump and Stokes waves with the distributed feedback due to Rayleigh scattering. The model considers random backscattering via its average strength, i.e. we assume that the feedback is incoherent.

In this work we propose a NLSE-based model of power and spectral properties of the random distributed feedback (DFB) fiber laser. In addition, this allows us to speed up simulations sufficiently (up to several orders of magnitude). We investigate temporal and statistical properties of the random DFB fiber laser dynamics.

We found that the model of the incoherent feedback predicts the smooth and narrow (comparing with the gain spectral profile) generation spectrum in the random DFB fiber laser. The model allows one to optimize the random laser generation spectrum width varying the dispersion and nonlinearity values. Interestingly, we found that the intensity statistics is not Gaussian. The intensity auto-correlation function also reveals that correlations do exist. The possibility to optimize the system parameters to enhance the observed intrinsic spectral correlations to further potentially achieved pulsed (mode-locked) operation of the mode-less random distributed feedback fiber laser is discussed.
The self-assembly of [Cp(Bn)Fe(η(5)-P5)] (Cp(Bn) = η(5)-C5(CH2Ph)5) with CuBr2 leads to the formation of an unprecedented rugby ball-shaped supramolecule consisting of 24 units of the pentaphosphaferrocene and an extended CuBr framework, which does not follow the fullerene topology. The resulting scaffold of 312 noncarbon atoms reveals three different coordination modes of the cyclo-P5 ligand including a novel π-coordination. The outer dimensions of 3.7 × 4.6 nm of the sphere approach the range of the size of proteins. With a value of 32.1 nm(3), it is 62 times larger in volume than a C60 molecule. Surprisingly, this giant rugby ball is also slightly soluble in CH2Cl2.
Thermophysical fundamentals and engineering concepts of the two-phase microfluidic devises based on controlled liquid decay are discussed in this paper. The results of an experimental study of the explosive evaporation at a thin film heater of the MEMS devise in application to thermal inkjet printing are presented. The peculiarities of homogeneous nucleation and bubble growth in the liquid subjected to pulse heating are discussed. Using experimental data a simple equation suitable for predicting the growth rate of a vapor bubble in a non-uniformly superheated liquid was obtained and used to complete a mathematical model of the self-consistent nucleation and vapor bubbles growth in the induced pressure field. The results of numerical calculations according to the proposed model showed good agreement with the experimental data on a time of nucleation and duration of the initial stage of an explosive evaporation of water.