Hengzongshu/ArticleAgent huggingface dataset:
Radioactive isotopes such as 7 Be, 210 Pb and 137 Cs are used as indicators of processes associated with the transfer of matter from the atmosphere.There are no widely known data on studies of the joint seasonal atmospheric flux of 7 Be and 210 Pbatm, based on the study of integrated snow samples accumulated in winter periods in territory of Western Siberia.Study of snow cover can provide information on the total flux of 7 Be and 210 Pb to the Earth's surface over the entire period of snow accumulation without separation of the dry or wet components.

The purpose of this study is to conduct a comparative analysis of 7 Be, 210 Pb and 137 Cs deposition as a part of the atmospheric precipitation in the Arctic and south regions of Western Siberia in winter period.As a result of the research, data on the joint deposition of 7 Be, 210 Pb and 137 Cs in integral snow samples, including atmospheric precipitation, dust, and aerosols, in the Arctic (for 7 months) and southern (for 5 months) regions of Western Siberia were firstly obtained.

A comparative analysis of the data shows that, despite the difference in geographic location, the concentration of 7 Be in the snow water of the Arctic (248.0 mBq L -1 ) and south (265.4 mBq L -1 ) regions is almost equal.At the same time, the specific activity of 210 Pb in the suspended matter of snow waters sampled in the southern region is 1.6 times higher, which may indicate a much higher level of dust material intake in winter.
The attention of this article is focused on the impact that expanding of the usage of information and communication technologies (ICT) has on the economic development of Russian regions. As shown by various authors, the use of ICT ultimately leads to an increase in the factor productivity. Here, we assess to what extent the use of ICT contributes to the growth of economic development efficiency at the regional level, which is interpreted here as labor productivity in certain economic sectors, and measured as output per worker. Panel data analysis for Russian regions covers 2015–2018. The analysis shows that the spread of ICT has a positive effect on labor productivity in both mining and manufacturing, with dividing regions into two groups – ‘resource’ and ‘non-resource’ depending on role of the extractive industry in regional economy – when considering labor productivity in mining. It was found that there is a relationship between ICT development indicators and labor productivity, with significant factors being industry and regionally specific. The widespread adoption of ICT has a positive effect on the economic development effectiveness, with a stronger link in the manufacturing, while for the mining the discovered relation was not so clear. Among the factors affecting labor productivity in the mining in ‘resource’ regions are access to the Internet, the use of ‘cloud’ services, as well as involvement in research and development; for ‘non-resource’ regions significant factors are the use of local computer networks, regional ICT subsidies, and the purchase of computing equipment. For the manufacturing, the key factors are access to the Internet, the share of high-tech businesses in the regional economy, the purchase of computing equipment, and the use of the services of third-party organizations and ICT specialists
An abrupt change in internuclear Re-Re distances between {Re(6)} subunits in the carbon-centered [Re(12)mu(6)-CS(17)(CN)(6)](n-) complexes caused by the change of the oxidation state (n = 6, 8)

is first theoretically shown to be possibly controlled by an external electric field. (13)C NMR signal is shown to change over ~400 ppm (~37G) for mu(6)-C atom together with n

Thereby, the metal cluster [Re(12)mu(6)-CS(17)(CN)(6)](n-) can be considered as a perspective model of a molecular switch
We give an overview of the activity in studying photoprocesses on a tensor-polarized deuterium target, which is carried out at the VEPP–3 electron storage ring. Recent experimental results on tensor asymmetries in two-body deuteron photodisintegration at the photon energy up to 500 MeV, and in coherent pion photoproduction on deuteron are presented. Plans to upgrade the facility and future experiments are discussed. Further progress is connected with the installation of a tagging system for almost-real photons. This would allow us to extend the measurements of polarization observables in photonuclear reactions on deuteron up to a photon energy of 1.5 GeV and permit to perform double polarized experiments – with linear polarized photon beams and tensor/vector polarized deuterium targets.
Maternal separation models in rodents are widely used to establish molecular mechanisms underlying prolonged effects of early life adversity on neurobiological and behavioral outcomes in adulthood. However, global epigenetic signatures following early life stress in these models remain unclear.

In this study, we carried out a ChIP-seq analysis of H3K4 trimethylation profile in the prefrontal cortex of adult male mice with a history of early life stress. Two types of stress were used: prolonged separation of pups from their mothers (for 3 h once a day, maternal separation, MS) and brief separation (for 15 min once a day, handling, HD).

Adult offspring in the MS group demonstrated reduced locomotor activity in the open field test accompanied by reduced exploratory activity, while the HD group showed decreased anxiety-like behavior only. In a group of maternal separation, we have found a small number (45) of slightly up-regulated peaks, corresponding to promoters of 70 genes, while no changes were observed in a group of handling. Among the genes whose promoters have differential enrichment of H3K4me3, the most relevant ones participate in gene expression regulation, modulation of chromatin structure and mRNA processing. For two genes, Ddias and Pip4k2a, increased H3K4me3 levels were associated with the increased mRNA expression in MS group. The distribution of H3K4me3 in prefrontal cortex showed relatively low variability across all individuals, and only some subtle changes were revealed in mice with a history of early life stress. It is possible that the observed long-lasting behavioral alterations induced by maternal separation are mediated by other epigenetic mechanisms, or other brain structures are responsible for these effects.
Confinement, chiral dynamics and light scalar mesons

Chiral shielding of σ(600), chiral constraints, σ(600), f_0(980) and their mixing in ππ→ππ, ππ→Kar K, and ϕ→γπ0π0; The ϕ meson radiative decays on light scalar resonances; Light scalars in γγ collisions

Evidence for four-quark components of light scalars is given; Why a0(980) and f0(980) are not the Kar K molecules; The priority of Quantum Field Theory in revealing the light scalar mystery is emphasized
We report a measurement of the differential cross section of ${\ensuremath{\pi}}^{0}$ pair production in single-tag two-photon collisions, ${\ensuremath{\gamma}}^{*}\ensuremath{\gamma}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{0}{\ensuremath{\pi}}^{0}$, in ${e}^{+}{e}^{\ensuremath{-}}$ scattering. The cross section is measured for ${Q}^{2}$ up to $30\text{ }\text{ }{\mathrm{GeV}}^{2}$, where ${Q}^{2}$ is the negative of the invariant mass squared of the tagged photon, in the kinematic range $0.5\text{ }\text{ }\mathrm{GeV}

The results are based on a data sample of $759\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ collected with the Belle detector at the KEKB asymmetric-energy ${e}^{+}{e}^{\ensuremath{-}}$ collider.

The transition form factor of the ${f}_{0}(980)$ and that of the ${f}_{2}(1270)$ with the helicity-0, -1, and -2 components separately are measured for the first time and are compared with theoretical calculations.
A series of novel deoxycholic acid (DCA) derivatives containing aliphatic diamine and aminoalcohol or morpholine moieties at the C3 position were synthesized by 3,26-epoxide ring-opening reactions. These compounds were investigated for their cytotoxicity in four human tumor cell lines and murine macrophages and for inhibitory activity against macrophage-mediated NO synthesis in vitro. Obtained data revealed that: (i) all amine-containing substituents significantly increased the cytotoxicity of the novel compounds (IC502-10 = 1.0-36.0 μM) in comparison with DCA (IC50DCA ≥ 82.9 μM); (ii) aminoalcohol moieties were more preferable than diamine moieties due to the fact they imparted better selectivity for tumor cells of the novel derivatives; (iii) the susceptibility of tested cell lines to derivatives diminished in the following order: HuTu-80 (duodenal carcinoma) ≈ HepG2 (hepatocarcinoma) > KB-3-1 (cervical carcinoma) > RAW264.7 (macrophages) > A549 (lung carcinoma); (iv) compounds 8 and 9, bearing aminoethanol and aminopropanol moieties, respectively, exhibited high cytotoxic selectivity indexes (SIHuTu-80 = 7.9 and 8.3, respectively) and good drug-likeness parameters; (v) the novel compounds do not display anti-NO activity. Mechanistic study revealed that compound 9 induces ROS-dependent cell death by activation of intrinsic caspase-dependent apoptosis and cytodestructive autophagy in HuTu-80 cells and vitamin D receptor can be considered as its primary target.
In this paper, approaches to the numerical recovering of the initial condition in the inverse problem for a nonlinear singularly perturbed reaction–diffusion–advection equation are considered. The feature of the formulation of the inverse problem is the use of additional information about the value of the solution of the equation at the known position of a reaction front, measured experimentally with a delay relative to the initial moment of time.

In this case, for the numerical solution of the inverse problem, the gradient method of minimizing the cost functional is applied. In the case when only the position of the reaction front is known, the method of deep machine learning is applied.

Numerical experiments demonstrated the possibility of solving such kinds of considered inverse problems.
We have measured the electric transport properties of TiN nanostrips with different widths. At zero magnetic field, the temperature-dependent resistance $R(T)$ saturates at a finite resistance toward low temperatures, which results from quantum phase slips in the narrower strips. We find that the current-voltage $(I\text{\ensuremath{-}}V)$ characteristics of the narrowest strips are equivalent to those of small Josephson junctions. Applying a transverse magnetic field drives the devices into a reentrant insulating phase, with $I\text{\ensuremath{-}}V$ characteristics dual to those in the superconducting regime. The results provide evidence that our critically disordered superconducting nanostrips behave like small self-organized random Josephson networks.
The article discusses the security problems of the Central Asian region, closely related to the ongoing war in Afghanistan. The author sets out his understanding of the term 'state security', which includes the problems of the armed forces and security agencies, primarily responsible for the fight against terrorism and separatism. However, there is also an understanding of the current state of the economy, interethnic relations, the preservation of natural resources, and the balance of interests in international relations.

In particular, an assessment is given of the mutual relations between the countries of Central Asia and China in connection with the implementation of the project 'One belt – one way'.

The situation in the region is characterized by a high degree of tension in neighboring Afghanistan, where armed conflicts continue between various local opposing forces, as well as American troops and the Taliban. Fighting in Afghanistan is an immediate threat to neighboring Central Asian states. In connection with the dangerous insecurity in Afghanistan, which negatively affects the situation in the entire Central Asian region, it is necessary to note the positive role of the Chinese leadership in its attempts to contribute to the settlement of the conflict. Beijing, interested in implementing its various infrastructure projects, provides its own platform for meetings between representatives of the warring parties, promoting mutual understanding.
Creation of a transonic region by means of gas fuel burning in a supersonic flow with a Mach number M = 2 in a channel with a variable cross section is studied numerically.

The averaged Navier – Stokes equations closed by the k-ε model of turbulence are solved. The transonic region is created by using gas-dynamic pulses of a throttling jet, which initiates gaseous fuel combustion in the channel region with a constant cross section. The fuel (ethylene or kerosene) is supplied axially into the axisymmetric channel.

It is shown that initiation of kerosene combustion requires using gas-dynamic pulses of higher power than those in the ethylene case. The evolution of the kerosene combustion process in channels of different lengths is studied. It is shown that the pulse action duration required for initiation increases with the length of the channel region with a constant cross section.
The evolution of the artificial wave packet in the supersonic boundary layer of swept wing was experimentally studied for the first time by hot-wire measurements. The localized disturbances were generated by pulse glow discharge. Analysis of the mean flow, integral dependences, the averaged waveforms of wave packet and spectral data analysis in supersonic boundary layer of swept wing has been executed. Estimates of the velocity of propagation of controlled disturbances downstream are made. A comparison of the wave packet development in the boundary layer of a swept wing at two Mach numbers is given.
Пополнена палеонтологическая характеристика рязанского регио яруса (нижняя часть нижнего мела) в разрезах страторегиона (бассейн р.Ока в окрестностях г.Рязань, Центральная Россия)

на основе исследования головоногих и двустворчатых моллюсков

Полученные сведения важны для
Enzymatic oxidation of L-arginine catalyzed by inducible nitric oxide synthase gives nitric oxide as the main product and superoxide anion as a side reaction product. Recombination of these radicals gives a very reactive species – peroxynitrite, which is involved in many biochemical processes.

Using a selective fluorescent probe for peroxynitrite - coumarin boronic acid and an adopted for the experimental purpose incubation mixture, magnetic field experiments have been done at 11.7T.

In the current work it was shown that such a system can be a usable model system for investigating the influence of magnetic field on enzymatic peroxynitrite formation. The averaged magnetic field effect is equal to 2.8±0.9%.
SELEX and SELEX-like technologies from the pools of random sequences

SELEX_DB is a novel curated database on selected randomized DNA/RNA sequences designed for accumulation of experimental data on functional site sequences. This database also contains the programs for DNA/RNA functional site recognition within arbitrary nucleotide sequences

The first release of SELEX_DB has been installed under SRS and is available through the WWW at http://wwwmgs.bionet.nsc.ru/mgs/systems/selex/
Статья посвящена ускорению параллельного решения трехмерных краевых задач методом декомпозиции расчетной области на подобласти, сопрягаемые без наложения. Декомпозиция проводится равномерной параллелепипедальной макросеткой.

В каждой подобласти и на границе сопряжения (интерфейсе) строятся свои структурированные подсетки. Объединение этих подсеток образует квазиструктурированную сетку, на которой решается поставленная задача. Распараллеливание решения осуществляется при помощи MPI-технологий. Предложен и экспериментально исследован алгоритм ускорения внешнего итерационного процесса по подобластям для решения системы линейных алгебраических уравнений, аппроксимирующих уравнение Пуанкаре-Стеклова на интерфейсе.

Проведены серии численных экспериментов на различных квазиструктурированных сетках и при различных параметрах вычислительных алгоритмов, показывающих ускорение вычислений.
On the basis of 2H NMR spin relaxation analysis

the motional mechanism for propene and propane within a ZIF-8 framework is elucidated

microscopic translational diffusion characteristics for these hydrocarbons have been estimated
The results of field experiments show that acoustic noise can be used to diagnose the technical state of pipeline supports. The accumulating amplitude spectra of acoustic noise recorded on the pipe surface, allows you to determine frequency and shape of flexural standing waves formed in it.

A sharp increase of number of such waves in the studied frequency range and the appearance of antinodes at the pipe fixing points indicate a possible instability of the investigated section of the pipeline.
A comparative study of dispersed catalysts obtained in-situ on the based of Mo and Fe-Co in the process of catalytic steam cracking of vacuum residue in the slurry-reactor was conducted

water : vacuum residue = 0,1 : 1 ratio, temperature – 450 °C, pressure – 2,0 MPa, feed rate – 0.1 kg/h. Samples of the semisynthetic oil were obtained and characterized. In the rectification process the gasoline, diesel, oil and residual fractions were allocated. A complex of physicоchemical methods was applied to the analysis of light and dark petroleum products

Based on the obtained data the performance properties of the studied fractions were compared. The relationship between the redistribution of components within the fractions and the catalytic properties of dispersed catalysts was established. The efficiency of using Fe-Co catalysts to produce semisynthetic oil with an increased content of light fractions in the process of catalytic steam cracking of vacuum residue is shown
We are concerned with the problem of charge transport in a 2D silicon MOSFET transistor occupying a domain Ω with a silicon oxide nanochannel occupying a domain ΩG. After proposing an additional boundary condition for the electric potential on the common boundary of the domains Ω and ΩG we design two numerical algorithms for funding approximate solutions of this problem. The first algorithm is a new one and uses interpolation polynomials of spline-collocation and the sweep method. The second algorithm is based on the well-known longitudinal-transverse sweep (l.t.s.) method. By using these algorithms we obtain graphs of stationary solutions of our problem. We also compare the workability and efficiency of the proposed algorithms for various values of parameters.
Solid solutions of Zr(Mo,W) 2 O 7 (OH,Cl) 2 ∙2H 2 O with a preset ratio of components were prepared by a hydrothermal method. The chemical composition of the solutions was determined by energy dispersive X-ray spectroscopy (EDX).

For all the samples of ZrMo x W 2−x O 7 (OH,Cl) 2 ∙2H 2 O (x = 0.0, 0.2, 0.4, 0.6, 0.8, 1.0, 1.2, 1.4, 1.6, 1.8, and 2.0), TGA and in situ powder X-ray diffraction (PXRD) studies (300–1100 K) were conducted. For each case, the boundaries of the transformations were determined.

The cell parameters of the disordered cubic-ZrMo x W 2−x O 8 (space group Pa-3) were measured within 300–900 K, and the thermal expansion coefficients were calculated: −3.5∙10 −6 – −4.5∙10 −6 K −1 . For the ordered ZrMo 1.8 W 0.2 O 8 (space group P2 1 3), a negative thermal expansion (NTE) coefficient −9.6∙10 −6 K −1 (300-400 K) was calculated. Orthorhombic-ZrW2O 8 is formed upon the decomposition of ZrW 2 O 7 (OH,Cl) 2 ∙2H 2 O within 500–800 K.
EIN3/EIL1 transcription factors are the key regulators of ethylene signaling that sustain a variety of plant responses to ethylene. Since ethylene regulates multiple aspects of plant development and stress responses, its signaling outcome needs proper modulation depending on the spatiotemporal and environmental conditions.

In this review, we summarize recent advances on the molecular mechanisms that underlie EIN3/EIL1-directed ethylene signaling in Arabidopsis. We focus on the role of EIN3/EIL1 in tuning transcriptional regulation of ethylene response in time and space. Besides, we consider the role of EIN3/EIL1-independent regulation of ethylene signaling.
Purpose . The aim of this work was to analyze the complete genome of probiotic bacteria Lactobacillus plantarum 8 RA 3, Lactobacillus fermentum 90 TC‐4, Lactobacillus fermentum 39, Bifidobacterium bifidum 791, Bifidobacterium bifidum 1, and Bifidobacterium longum 379 and to test their activity against influenza A and SARS‐CoV‐2 viruses.

Methods . To confirm the taxonomic affiliation of the bacterial strains, MALDI TOF mass spectrometry and biochemical test systems were used. Whole genome sequencing was performed on the Illumina Inc. MiSeq platform. To determine the antiviral activity, A/Lipetsk/1V/2018 (H1N1 pdm09) (EPI_ISL_332798) and A/common gull/Saratov/1676/2018 (H5N6) (EPI_ISL_336925) influenza viruses and SARS‐CoV‐2 virus strain Australia/VIC01/2020 (GenBank: MT007544.1) were used.

Results . All studied probiotic bacteria are nonpathogenic for humans and do not contain the determinants of transmission‐type antibiotic resistance and integrated plasmids. Resistance to antibiotics of different classes is explained by the presence of molecular efflux pumps of the MatE and MFS families. Cultures of L. fermentum 90 TC 4, L . plantarum 8 RA 3, and B. bifidum 791 showed a pronounced activity against influenza A viruses in MDCK cells. Activity against the SARS‐CoV‐2 virus was demonstrated only by the L. fermentum 90 TC 4 strain in VERO cells. Conclusions . The studied probiotic bacteria are safe, have antiviral activity, and are of great importance for the prevention of diseases caused by respiratory viruses that can also infect the human intestine.
We report high-pressure synchrotron X-ray powder diffraction data for the W-rich cubic ZrW 2-x Mo x O 8 (x=0.4) up to 10 GPa with open decompression.

This study shows that cubic- ZrW 1.6 Mo 0.4 O 8 transforms to orthorhombic phase at the 5.04 GPa. Pressure-induced reversable amorphization of material was observed at 8.13 GPa.

The obtained data suggest that W-rich cubic ZrW 2-x Mo x O 8 (x=0.4) solid solutions are more attractive for creating products working under extreme conditions and mechanic stress.
the more complex conditions usually discussed

We find a set of necessary and sufficient conditions for the CP conservation in the most general 2HDM in terms of observable quantities

This set contains two simple and relatively easily testable conditions
The attractive plasmon force between two metallic walls when the electromagnetic wave propagates through a narrow slit has been studied earlier for parallel plates and normal incidence. In present paper the effects of imperfect adjustment of plates and laser beam are analyzed. The change of force for non-parallel plates is shown to be of the first order in inclination angle when the wedge is along wave propagation and of the second order for transverse case. The small incidence angle leads to decrease in force due to the antisymmetric waveguide mode appearing in the slit.