Hengzongshu/ArticleAgent huggingface dataset:
The overview of two running BINP electron-positron colliders VEPP-4M and VEPP-2000 is presented. Since 2016 both colliders are joint to the single accelerator complex via common injector that supplies more intensive beams. In 2017 VEPP-2000 started data taking after 3 years of upgrade. The project of Super-Charm-Tau factory waits for the final government’s approval being considered as one of 6 mega-science project in Russia.
I discuss the accuracy and computational time of the discrete dipole approximation (DDA) when applied to metal nanoparticles.

The accuracy of the DDA can be made satisfactory by refining discretization (or increasing number of dipoles), but the required discretization level strongly depends on particle shape and refractive index (or wavelength) as well as on a particular computed quantity of interest. I present certain guidelines for setting the appropriate discretization, but they can not be considered comprehensive. On contrary, the required computational time can be accurately estimated once the number of dipoles is set. For that approximate expression for the required number of iterations of the iterative solver is used, which validity was tested for a wide range of refractive index.
Vernalization genes VRN1 play a major role in the transition from vegetative to reproductive growth in wheat. In di-, tetra- and hexaploid wheats the presence of a dominant allele of at least one VRN1 gene homologue (Vrn-A1, Vrn-B1, Vrn-G1 or Vrn-D1) determines the spring growth habit. Allelic variation between the Vrn-1 and vrn-1 alleles relies on mutations in the promoter region or the first intron. The origin and variability of the dominant VRN1 alleles, determining the spring growth habit in tetraploid wheat species have been poorly studied.

Here we analyzed the growth habit of 228 tetraploid wheat species accessions and 25 % of them were spring type. We analyzed the promoter and first intron regions of VRN1 genes in 57 spring accessions of tetraploid wheats. Genetic experiments proof the dominant inheritance of Vrn-A1d allele which was widely distributed across the accessions of Triticum dicoccoides.

The spring growth habit of most studied spring accessions was determined by previously identified dominant alleles of VRN1 genes. Two novel alleles were discovered and designated as Vrn-A1b.7 and Vrn-B1dic. The presence of Vrn-A1b.7 and Vrn-B1dic alleles is a predicted cause of the spring growth habit of studied accessions of tetraploid species. Three spring accessions T. aethiopicum K-19059, T. turanicum K-31693 and T. turgidum cv. Blancal possess recessive alleles of both VRN-A1 and VRN-B1 genes. Further investigations are required to determine the source of spring growth habit of these accessions.New allelic variants of the VRN-A1 and VRN-B1 genes were identified in spring accessions of tetraploid wheats. The origin and evolution of VRN-A1 alleles in di- and tetraploid wheat species was discussed.
The genus Tettigonia includes 26 species distributed in the Palaearctic region. Though the Green Bush-crickets are widespread in Europe and common in a variety of habitats throughout the Palaearctic ecozone, the genus is still in need of scientific attention due to the presence of a multitude of poorly explored taxa.

In the present study, we sought to clarify the evolutionary relationships of Green Bush-crickets and the composition of taxa occurring in the Western Palaearctic. Based on populations from 24 disjunct localities, the phylogeny of the group was estimated using sequences of the cytochrome oxidase subunit I (COI) and the internal transcribed spacers 1 and 2 (ITS1 and ITS2). Morphological and acoustic variation documented for the examined populations and taxa was interpreted in the context of phylogenetic relationships inferred from our genetic analyses.

The trees generated in the present study supported the existence of three main lineages: "A"—composed of all sampled populations of Tettigonia viridissima and the Tettigonia vaucheriana complex, "B"—comprising Tettigonia caudata, Tettigonia uvarovi, and the Tettigonia armeniaca complex, and "C"—consisting of Tettigonia cantans. The present study provides the first phylogenetic foundation for reviewing the systematics of Tettigonia (currently classified mostly according to morphological characteristics), proposing seven new synonymies.
MPb2Br5(M=K, Rb):RE crystals attract attention due to a possibility of laser generation beyond 4μm limit owing to their lower vibrational frequencies and higher quantum yields. MPb2Hal5 are transparent from 0.3 to 30 μm, have satisfactory mechanical properties, high chemical resistance, extremely low maximum phonon energy (~140 cm-1) and as a result lower non-radiative rates. But their use as laser matrices is associated with some difficulties. KPb2Br5 (KPB) is monoclinic and contains 2 Pb positions: with coordination numbers (CN) 8 and 7 and Pb2+ radii 1.22Å and 1.10Å, respectively. The second position is suitable for RE doping. Unfortunately, KPB has a poor optical quality due to a phase transition during growth. RbPb2Br5 (RPB) don't have phase transitions below the melting point and can be used to produce high quality and large size elements. RPB is tetragonal, Pb2+ occupy one position (CN=8, Rion=1.22Å). Its size exceeds RE radii, so their distribution coefficient in RPB is low. RPB exhibits an expressed temperature expansion and optical properties anisotropy. There is no such effect in KPB because of significant difference in the unit cell parameters ratio a,b/c, a/c in KPB, RPB. To obtain an efficient material with an optimal set of characteristics, authors obtained K0.5Rb0.5Pb2Br5:REE crystals (P21/c). They are characterized by minimal anisotropy of thermal and spectral parameters along different crystallographic directions. Transparency range and the dominance of the radiative relaxation mechanism up to 10μm, typical for RPB and KPB, are preserved, therefore K0.5Rb0.5Pb2Br5:REE is a potential mid-IR laser matrix. This work was partly done on state assignment of IGM SB RAS, Ministry of Science and Higher Education of the Russian Federation and was supported by Russian Foundation for Basic Research (grant # 19-42-540012).
Ozone is a very effective medical, industrial and agricultural disinfector, bleacher and deodorizer. Ozone acts very quickly, but its decay rate is also high. Gas hydrate formation is a promising method for storing ozone and ozone-containing gas mixtures.

We use molecular dynamics (conjugate gradient) and lattice dynamics method to calculate the free energy double O 3 +CO 2 hydrate of cubic structure I at 270 K and 275 K temperatures and various gas phase compositions. It allowed determining the chemical potential of water molecules depending on pressure at given temperatures and compositions.

Comparison with Ih ice and liquid water allowed us to determine regions of O 3 +CO 2 double hydrate stability. The presented results may be useful in studies of thermodynamic stability areas of hydrates obtained from pure ozone (e.g. liquid ozone), its mixtures and in the development of corresponding storage technologies.
In the Dornogobi Aimag region of Southern Mongolia, the main source of groundwater contamination by U, As, and Se is hydrogenic- or sandstone-type uranium deposits. These environmentally hazardous deposits, located in close proximity to populated settlements, pose a serious threat to drinking water quality and human health. Although multiple metal and metalloid contamination of groundwater is an issue of global concern, our understanding of the physical-chemical conditions of its accumulation is limited.

Fifty samples were analyzed and levels of uranium were found to be elevated in deep and shallow waters (200 and 34.7 μg/L, respectively), with nearly 25% exceeding the World Health Organization (WHO) guideline level for drinking water quality (30 μg/L). This study provides a plausible explanation of the geochemical situation at the uranium Dornogobi province based on thermodynamic calculations.

Local rocks and soils appear to be the natural source of uranium. In particular, water from deep hydrologic wells near the largest deposits (Dulaan Uul and Zoovch Ovoo) exceeds the WHO guideline levels for U, As, Se, Sb, Cd, and Fe. At the same time, shallow groundwater (Argalant area) contains 50.5 μg/L of As, 34.7 μg/L of U, and 35.9 μg/L of Cd.
The decay Z(c)(3900)(+/-) -> omega pi(+/-) is searched for

using data samples collected with the BESIII detector operating at the BEPCII storage ring at center-of-mass energies root s = 4.23 and 4.26 GeV

No significant signal for the Z(c)(3900)(+/-) is found, and upper limits at the 90% confidence level on the Born cross section for the process e(+)e(-) -> Z(c)(3900)(+/-) pi(-/+) -> omega pi(+)pi(-) are determined to be 0.26 and 0.18 pb at root s = 4.23 and 4.26 GeV, respectively
2,2':6',2''-Terpyridine (tpy), which is practically non-fluorescent (Φ <0.01) in organic solutions, in an amorphous solid and a needle crystal (P212121, Z=4), was found to show an efficient solid-state luminescence (365 nm, Φ =0.2) upon formation of a plate crystal (P21/c, Z=8).Furthermore, effective on-off switching of this solidstate luminescence was realized by heat-mode interconversion between the plate and needle crystals.It was shown that the rate constant of the non-radiative relaxation of the needle crystal (k=1.2x10 9 s -1 ) was an order of magnitude larger than the plate crystal, while that of the emissive process were comparable (k~10 7 s -1 ).In contrast to a frozen solution, both polymorphs did not exhibit phosphorescence at 77 K, suggesting that the triplet state might not be involved in the non-radiative p r o c e s s .C o m p a r i n g b o t h polymorphs, tpy molecules were in different conformation, conrotated and disrotated, w h i c h m i g h t b e d u e t o a different molecular packing.Relation between the difference in the crystal structure and the solid-state luminescence property was further studied.
Synthetic recombination form RS7 (BBAAUS), in which the first two genomes, A and B, originate from common wheat, and the third recombinant genome consists of Aegilops speltoides (S) and Ae. umbellulata (U) chromosomes, was obtained from crossing synthetic forms Avrodes (BBAASS) and Avrolata (BBAAUU). Resistant to leaf rust, yellow rust and powdery mildew, introgression lines have been obtained from backcrosses with the susceptible varieties of common wheat Krasnodarskaya 99, Fisht and Rostislav.

PCR analysis showed the presence of amplification fragments with marker SCS421 specific for the Lr28 gene in the line 4991n17. The cytological study (С-banding and FISH) of 14 lines has revealed chromosomal modifications in 12 of them. In most cases, the lines carry translocations from Ae. speltoides, which were identified in chromosomes 1D, 2D, 3D, 2B, 4B, 5B and 7B. Also, lines with the substituted chromosomes 1S (1B), 4D (4S), 5D (5S) and 7D (7S) were identified. Lines that have genetic material from Ae. speltoides and Ae umbellulata at once were revealed. In the line 3379n14, translocations in the short arm of chromosome 7D from Ae. umbellulata and chromosomes 5BL, 1DL, 2DL from Ae. speltoides were revealed. The line 4626p16 presumably has a translocation on the long arm of chromosome 2D from Ae. umbellulata and the T7SS.7SL-7DL translocation from Ae. speltoides. The T1DS.1DL-1SL and T3DS.3DL-3SL translocations from Ae. speltoides, and T2DS.2DL-2UL and T7DL.7DS-7US from Ae. umbellulata have been obtained for the first time.

These lines may carry previously unidentified disease resistance genes and, in particular, leaf rust resistance genes from Ae. speltoides and Ae. umbellulata.
Chronic social defeat stress leads to the development of anxiety- and depression-like states in male mice and is accompanied by numerous molecular changes in brain.

The influence of 21-day period of social stress on ribosomal gene expression in five brain regions was studied using the RNA-Seq database.

Most Rps, Rpl, Mprs , and Mprl genes were upregulated in the hypothalamus and downregulated in the hippocampus, which may indicate ribosomal dysfunction following chronic social defeat stress. There were no differentially expressed ribosomal genes in the ventral tegmental area, midbrain raphe nuclei, or striatum. This approach may be used to identify a pharmacological treatment of ribosome biogenesis abnormalities in the brain of patients with 'ribosomopathies.'
Hormones frequently guide animal development via the induction of cascades of gene activities, whose products further amplify an initial hormonal stimulus. In Drosophila the transformation of the larva into the pupa and the subsequent metamorphosis to the adult stage is triggered by changes in the titer of the steroid hormone 20-hydroxyecdysone. singed wings (swi) is the only gene known in Drosophila melanogaster for which mutations specifically interrupt the transmission of the regulatory signal from early to late ecdysone inducible genes.We have characterized singed wings locus, showing it to correspond to EG:171E4.2 (CG3095). swi encodes a predicted 68.5-kDa protein that contains N-terminal histidine-rich and threonine-rich domains, a cysteine-rich C-terminal region and two leucine-rich repeats. The SWI protein has a close homolog in D. melanogaster, defining a new family of SWI-like proteins, and is conserved in D. pseudoobscura. A lethal mutation, swit476, shows a severe disruption of the ecdysone pathway and is a C>Y substitution in one of the two conserved CysXCys motifs that are common to SWI and the Drosophila Toll-4 protein.It is not entirely clear from the present molecular analysis how the SWI protein may function in the ecdysone induced cascade. Currently all predictions agree in that SWI is very unlikely to be a nuclear protein. Thus it probably exercises its control of "late" ecdysone genes indirectly. Apparently the genetic regulation of ecdysone signaling is much more complex then was previously anticipated.
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
A new approach to improve the light-emitting efficiency of Ge(Si) quantum dots (QDs) by the formation of an ordered array of QDs on a pit-patterned silicon-on-insulator (SOI) substrate is presented.

This approach makes it possible to use the same pre-patterned substrate both for the growth of spatially ordered QDs and for the formation of photonic crystal (PhC) in which QDs are embedded. The periodic array of deep pits on the SOI substrate simultaneously serves as a template for spatially ordering of QDs and the basis for two-dimensional PhCs. As a result of theoretical and experimental studies, the main regularities of the QD nucleation on the pre-patterned surface with deep pits were revealed.

The parameters of the pit-patterned substrate (the period of the location of the pits, the pit shape, and depth) providing a significant increase of the QD luminescence intensity due to the effective interaction of QD emission with the PhC modes are found.
Построение иерархического набора моделей: от стоимостной ОМММ к отраслевой модели в натуральных показателях Ю. Ш
The statistics of vortex loops emitted from the domain with quantum turbulence is studied. The investigation is performed on the supposition that the vortex loops have the Brownian or random walking structure with the generalized Wiener distribution. The main goal is to relate the properties of the emitted vortex loops with the parameters of quantum turbulence. The motivation of this work is connected with recent studies, both numerical and experimental, on study of emitted vortex loops. This technique opens up new opportunities to probe superfluid turbulence. We demonstrated how the statistics of emitted loops is expressed in terms of the vortex tangle parameters and performed the comparison with numerical simulations.
The research is aimed at the study of a passive control method to control unsteady cloud cavitation that is characterized by regular shedding of large vapour structures from the solid surface of a cavitating immersible body. The unsteady cloud cavitation is an important subject of research because of its destructive impacts in various industrial applications, including ship propellers and rudders, pumping and hydraulic machinery systems. For this, we placed miniature vortex generators (MVGs) of a cylindrical type on the surface of a benchmark CAV2003 hydrofoil and investigated effects of these MVGs on the spatial structure of unsteady cavitation clouds. We analyzed the temporal and spatial cavity characteristics in comparison with those for the original hydrofoil (without MVGs) by means of high-speed imaging. In addition, we used a hydrophone to register the signal of pressure pulsations in time and thereby derive power spectra of the pressure pulsations. The results showed that the implemented cavitation control method is an effective tool to manage the unsteady behaviour of cloud cavitation and to mitigate the amplitude of pressure pulsations. It was revealed that, with this control approach, the large-scale cavitation clouds appear to be broken and only small-scale cavity structures are shed away from the hydrofoil surface. Moreover, a notable reduction in the cavitation-induced vibrations of the solid surface may be expected.
The model of the observed object plays the key role in the task of object tracking. Models as a set of image parts, in particular, keypoints, is more resistant to the changes in shape, texture, angle of view, because local changes apply only to specific parts of the object. On the other hand, any model requires updating as the appearance of the object changes with respect to the camera.

In this paper, we propose a dynamic (time-varying) model, based on a set of keypoints. To update the data this model uses the algorithm of rating keypoints and the decision rule, based on a Function of Rival Similarity (FRiS).

As a result, at the test set of image sequences the improvement was achieved on average by 9.3% compared to the original algorithm. On some sequences, the improvement was 16% compared to the original algorithm.
Aim . To establish associations of polymorphisms of candidate genes coding for the components of the endothelial (NOS3, MTHFR) and sympathoadrenal systems (ADRB1, ADRA2B) with coronary heart disease (CHD) in the cohort of the small population of Mountain Shoriya. Material and methods . A clinical and epidemiological study was conducted in the areas of Mountain Shoriya (Orton, Ust-Kabyrza, Sheregesh, Tashtagol). Analysis of risk factors included recording the age, sex, body mass index, waist circumference, presence/absence of arterial hypertension (AH), smoking, and the presence of disorders of lipid and carbohydrate metabolism. CHD diagnosis was made by three epidemiological criteria: coding of the electrocardiogram according to the Minnesota code, Rose questionnaire, and a history of myocardial infarction. The patient underwent molecular genetic testing. DNA isolation from blood was carried out by the method of phenol-chloroform extraction. Statistical processing was carried out using the programs STATISTICA 6.1 (StatSoft Inc., USA) and SNPStats. Results . The prevalence of CHD in the Shoriya cohort was 9,7%. The results of our study established the relationship of genetic markers of the sympathoadrenal and endothelial systems with coronary atherosclerosis in the indigenous population of Shoriya. The high risk of atherosclerotic heart disease was associated with the 4b/4a genotype of the NOS3 gene (OR 2,57 95% CI (1,12-5,86), p=0,026) according to the dominant mode of inheritance. The relationship of the T/T genotype of the MTHFR gene with CHD by recessive inheritance was established (OR 13,28; 95% CI (1,79-98,40), p=0,024). Conclusion . Due to genetic research, there is a real opportunity not only to carry out accurate molecular diagnostics, but also to determine an underlying risk for a disease. Detection of genetic disposition to CHD can be carried out long before the onset of clinical symptoms, which can effectively prevent its development.
The effects of temperature and pressure on the co-crystals of glycine with DL-tartaric and phthalic acids (GTa and GPh, respectively) have been studied by X-ray diffraction and Raman spectroscopy in comparison with those on glycine–glutaric acid (GGa). On cooling, no phase transitions were observed in GTa or GPh, in contrast to the situation with GGa. On hydrostatic compression, both GTa and GPh underwent reversible phase transformations, accompanied by fracture. In the high-pressure phases, the main structural framework was preserved, and the number of crystallographically independent molecules in the unit cell increased. In GTa, dimers are squeezed together so that some hydrogen bonds get a three-centered character, and the interactions of one of the two glycine molecules change dramatically.
Mechanochemical methodologies, particularly ball milling, have become commonplace in many laboratories.

In the present work, we examine the effects of milling ball mass on the polymorphic conversion of anhydrous caffeine. By investigating a single-phase system, the rate-limiting step of particle-particle contact formation is eliminated.

It is found that larger milling balls lead to considerably faster conversion rates. Modelling of the transformation rate suggests that a single, time-independent rate constant is insufficient to describe the transformation. Instead, a convolution of at least two rate-determining processes is required to correctly describe the transformation. This suggests that the early stages of the transformation are governed only by the number of particle-ball collisions. As the reaction proceeds, these collisions less frequently involve reactant, and the rate becomes limited by mass transport, or mixing, even in originally single-phase systems, which become multi-phase as the product is formed. Larger milling balls are less hindered by poorly mixed material. This likely results from a combination of higher impact energies and higher surface areas associated with the larger milling balls. Such insight is important for the selective and targeted design of mechanochemical processes.