Hengzongshu/ArticleAgent huggingface dataset:
Auxin plays a pivotal role in virtually every aspect of plant morphogenesis. It simultaneously orchestrates a diverse variety of processes such as cell wall biogenesis, transition through the cell cycle, or metabolism of a wide range of chemical substances. The coordination principles for such a complex orchestration are poorly understood at the systems level.

Here, we perform an RNA-seq experiment to study the transcriptional response to auxin treatment within gene groups of different biological processes, molecular functions, or cell components in a quantitative fold-change-specific manner.

We find for Arabidopsis thaliana roots treated with auxin for 6 h that (i) there are functional groups within which genes respond to auxin with a surprisingly similar fold changes and that (ii) these fold changes vary from one group to another. These findings make it tempting to conjecture the existence of some transcriptional logic orchestrating the coordinated expression of genes within functional groups in a fold-change-specific manner. To obtain some initial insight about this coordinated expression, we performed a motif enrichment analysis and found cis-regulatory elements TBX1-3, SBX, REG, and TCP/site2 as the candidates conferring fold-change-specific responses to auxin in Arabidopsis thaliana.
The paper studies the structural, phase and fractographic features of mechanically synthesized non-equilibrium Cu-Co alloys characterized by limited solubility. The components are taken in three different proportions.

Mechanical alloying was carried out by high-pressure torsion related to severe plastic deformation methods. As a result of mechanical alloying, the investigated system of components initially insoluble below 800 C, according to the equilibrium phase diagram, undergoes structural and phase changes consisting in the formation of non-equilibrium solid solutions. With an increase in the proportion of cobalt in the original mixture, the proportion of this element in the solid solution increases after mechanical alloying.

This, in turn, affects the appearance of the fracture surface; namely, it changes from brittle-ductile fracture first to brittle fracture and then to mixed one, corresponding to an earlier stage of deformation-induced mechanical alloying.
We study a new rheological model (a modification of a known Pokrovski – Vinogradov model). As was shown by 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.
Cold atmospheric plasma (CAP) jet generated by the plasma source at 2-6 kV ac voltages with frequencies of 10-50 kHz demonstrate the different modes of operation.

Depending on the voltage frequency and amplitude, some streamers in the plasma jet are short and decay before they approach the treated surface. In this case, the effect on the viability of cancer cells when exposed to CAP jet strongly depends on the mode of operation of the discharge or, in other words, on how many times the streamers hit the bio-target during the treatment.

The effect on different modes on cancer cells A549 viability is reported.
Introduction of a substance into medical practice requires the indispensable evidence of the substance purity as early as the stage of preclinical testing. The content of residual organic solvents, which can affect the pharmacological activity of the drug, is one of the indicators of the substance quality control.

Four solvents are used during synthesis and isolation of the substance: dichloromethane, ethyl acetate, methyl tert -butyl ether (MTBE), and n -hexane. Two methods of determining residual organic solvents in (2 R ,4 R ,4 aR ,7 R ,8 aR )-4,7-dimethyl-2-(thiophen-2-yl)octahydro-2 H -chromen-4-ol using gas chromatography are offered: i) introduction of a gas sample and separation of the components on a commercial HP-5ms capillary column (30 m × 0.35 mm × 0.25 ìm); ii) introduction of a liquid sample and separation on a capillary column (30 m × 0.32 mm × 0.30 ìm) filled with a modified poly(1-trimethylsilyl-1- propyne) (PTMS). Since the first method provides only determination of n -hexane and ethyl acetate, the procedure was developed and validated for determination of four residual solvents, i.e., dichloromethane, ethyl acetate, methyl n -butyl ether, and n -hexane in test substance using gas chromatography on the column with a modified PTMSP-based phase.

We detected trace amounts of ethyl acetate and methyl n -butyl ether; the content of dichloromethane and n -hexane in the substance appeared below the detection limits. The average content of ethyl acetate and MTBE in the substance for 9 parallel determinations (0.10 and 0.20 ppm) appeared 5 and 2.5 × 104 times lower than maximum permissible content (5000 ppm), respectively. The developed technique was assessed for: specificity, linearity of the calibration curve, correctness, precision at the level of the repeatability and intralaboratory precision, and stability of the chromatographic system. Standard deviations in the determination of ethyl acetate and MTBE in the substance do not exceed 0.03 and 0.09, respectively. The procedure is specific, accurate and reliable for determination of the residual organic solvents in the substance.
The paper presents the NORBY 6U CubeSat nanosatellite’ launched on 28 September 2020 into a low-Earth orbit. The design of NORBY is briefly described’ the main characteristics of its subsystems are given’ and the results of the first flight tests are presented. The main features of the NORBY design are full hardware duplication of all subsystems and information interfaces’ as well as the use of LoRa modulation in radio communications between the satellite and a ground station. The first results of the NORBY flight tests confirm the effectiveness of the key technical solutions applied in the NORBY design. For the first time’ the operability of the LoRa modulation in satellite radio communications has been experimentally confirmed. The LoRa satellite-to-ground radio channel functioned sustainably at all tested parameters.
Single-cell technology is a relatively new and promising way to obtain high-resolution transcriptomic data mostly used for animals during the last decade. However, several scientific groups developed and applied the protocols for some plant tissues. Together with deeply-developed cell-resolution imaging techniques, this achievement opens up new horizons for studying the complex mechanisms of plant tissue architecture formation. While the opportunities for integrating data from transcriptomic to morphogenetic levels in a unified system still present several difficulties, plant tissues have some additional peculiarities. One of the plants’ features is that cell-to-cell communication topology through plasmodesmata forms during tissue growth and morphogenesis and results in mutual regulation of expression between neighboring cells affecting internal processes and cell domain development. Undoubtedly, we must take this fact into account when analyzing single-cell transcriptomic data. Cell-based computational modeling approaches successfully used in plant morphogenesis studies promise to be an efficient way to summarize such novel multiscale data. The inverse problem’s solutions for these models computed on the real tissue templates can shed light on the restoration of individual cells’ spatial localization in the initial plant organ—one of the most ambiguous and challenging stages in single-cell transcriptomic data analysis. This review summarizes new opportunities for advanced plant morphogenesis models, which become possible thanks to single-cell transcriptome data. Besides, we show the prospects of microscopy and cell-resolution imaging techniques to solve several spatial problems in single-cell transcriptomic data analysis and enhance the hybrid modeling framework opportunities.
The study of sudden cardiac death (SCD) and its etiopathogenesis in cardiology practice remains one of the most pressing public health problems. In Western countries, SCD accounts for 20% of the total mortality and 50% of mortality associated with cardiovascular diseases. Considering the electrical instability in the myocardium as one of the main reasons for the development of life-threatening arrhythmias (ventricular tachycardia / ventricular fibrillation) and SCD, one should be aware of such provoking factors as ischemic heart disease, myocarditis, valvular heart disease, pharmacological influences, cardiomyopathy, and channelopathy. An increase or decrease in the duration of the QT interval, which reflects the work of ion channels, as well as ventricular depolarization and repolarization, increases the risk of SCD.

The aim of this review was to study and analyze the available literature data on the relationship of molecular genetic markers with the duration of the QT interval.

Currently, there is a number of genetic studies that allow to identify a large number of mutations and polymorphisms of known genes that affect the variability of the QT interval, showing their significance in risk stratification of sudden arrhythmic death and choosing the right tactics for managing, preventing, and treating patients, thus reducing the risk of SCD. The predictive value of genetic testing is the highest for long QT syndrome (LQTS), for which a gene-specific risk profile has been established, and lower for other channelopathies. A large amount of genetic data may be a promising approach to quantifying the risk of SCD, especially at a young age, which will be facilitated by further study of this problem.
Due to their specific physical properties, HgCdTe-based heterostructures are expected to play an important role in terahertz photonic systems. Here, focusing on gated devices presenting inverted band ordering, we evidence an enhancement of the terahertz photoconductive response close to the charge neutrality point and at the magnetic field driven topological phase transition. We also show the ability of these heterostructures to be used as terahertz imagers. Regarding terahertz emitters, we present results on stimulated emission of HgCdTe heterostructures in their conventional semiconductor state above 30 THz, discussing the physical mechanisms involved and promising routes towards the 5–15 THz frequency domain.
The isogenic lines of wheat (Tritkum aestivum L. var. Novosibirskaja 67) carrying reduced height and leaf pubescence character, were evaluated for their ability to regenerate plants from immature embryo-derived calli using protocols based on six different media. The percentage of calli capable of plant regeneration was recorded. The effect of media on the formation of regenerative calli in the various isogenic lines is demonstrated. Significant differences were observed between the initial variety and the isogenic lines with the Rht genes on several media. The distinctive difference of Novosibirskaja 67 and sib of ANK-7A not carrying the marker character with ANK-7A line isogenic for leaf pubescence was revealed on two media. It is suggested that the leaf pubescence gene of ANK-7A or a gene closely linked to it are likely to play an important role in the control of plant regeneration in vitro. The fact that there is the medium where ANK.-7A produced calli regenerating plants while Novosibirskaja 67 and K-26011 (donor of leaf pubescence for ANK-7A) are completely incapable of plant regeneration confirms that the expression of these genes is influenced by the genomic background.
Genome assemblies are in the process of becoming an increasingly important tool for understanding genetic diversity in threatened species. Unfortunately, due to limited budgets typical for the area of conservation biology, genome assemblies of threatened species, when available, tend to be highly fragmented, represented by tens of thousands of scaffolds not assigned to chromosomal locations.

The recent advent of high-throughput chromosome conformation capture (Hi-C) enables more contiguous assemblies containing scaffolds spanning the length of entire chromosomes for little additional cost. These inexpensive contiguous assemblies can be generated using Hi-C scaffolding of existing short-read draft assemblies, where N50 of the draft contigs is larger than 0.1% of the estimated genome size and can greatly improve analyses and facilitate visualization of genome-wide features including distribution of genetic diversity in markers along chromosomes or chromosome-length scaffolds. We compared distribution of genetic diversity along chromosomes of eight mammalian species, including six listed as threatened by IUCN, where both draft genome assemblies and newer chromosome-level assemblies were available.

The chromosome-level assemblies showed marked improvement in localization and visualization of genetic diversity, especially where the distribution of low heterozygosity across the genomes of threatened species was not uniform.
The reflection high-energy electron diffraction during the film deposition by the MBE method and the x-ray phase analysis showed that the initial films are in the polycrystalline phase.

Nanostructured SnO(x) films were obtained by molecular beam epitaxy (MBE). The morphology, structure, and optical properties of obtained films annealed in the temperature range of 200 °C–1000 °C were studied. The sharp change in the optical constants near the temperature of 500 °C was established using ellipsometry.

A single orthorhombic SnO 2 phase was obtained for the first time after annealing the SnO(x) film in the air at a temperature of about 500 °C. The pronounced absorption edge appears in the short-wave region at temperatures above 500 °C and it disappears at lower temperatures. The film thickness changed non-monotonically during the annealing in the air. At first, it grows from 45 nm to 65 nm (active oxidation to 500 °C), and then (above 600 °C) it begins to decrease. The annealing at temperatures of 500 °C–1000 °C leads to the film compaction, since the film thickness decreases to 50 nm, but the refractive index increases by 10%–15%. Optical constants track the progress of film phase and morphological changes.
The GeneNet database is designed for accumulation of information on gene networks. Original technology applied in GeneNet enables description of not only a gene network structure and functional relationships between components, but also metabolic and signal transduction pathways. Specialised software, GeneNet Viewer, automatically displays the graphical diagram of gene networks described in the database. Current release 3.0 of GeneNet database contains descriptions of 25 gene networks, 945 proteins, 567 genes, 151 other substances and 1364 relationships between components of gene networks. Information distributed between 14 interlinked tables was obtained by annotating 968 scientific publications. The SRS-version of GeneNet database is freely available (http://wwwmgs.bionet.nsc.ru/mgs/systems/genenet/).
В статье полное многообразие собственных функций основного состояния для чисто магнитного 2D-оператора Паули рассматривается как побочный продукт новой редукции, найденной авторами несколько лет назад для алгебро-геометрических обратных спектральных данных (т.е. римановых поверхностей и дивизоров). Эта редукция ассоциирована с $(2+1)$-солитонной иерархией, содержащей 2D-аналог известной "системы Бюргерса". Эта статья содержит также изложение предыдущих работ, выполненных с 1980 г., включая первые топологические идеи в пространстве квазиимпульсов. Мы также даем новые результаты, посвященные самосопряженным граничным задачам для оператора Паули. Нулевой 2D-уровень "неспектральных" функций Блоха-Флоке дает дискретные точки дополнительного спектра аналогично "граничным состояниям" конечнозонных 1D-потенциалов в зонах. Библиография: 35 названий.
To understand the dynamic nuclear polarization (DNP) enhancements of biradical polarizing agents, the magnetic resonance parameters need to be known. We describe a tailored EPR approach to accurately determine electron spin-spin coupling parameters using a combination of standard (9 GHz), high (95 GHz) and ultra-high (275 GHz) frequency EPR. Comparing liquid- and frozen-solution continuous-wave EPR spectra provides accurate anisotropic dipolar interaction D and isotropic exchange interaction J parameters of the DNP biradical AMUPol. We found that D was larger by as much as 30% compared to earlier estimates, and that J is 43 MHz, whereas before it was considered to be negligible. With the refined data, quantum mechanical calculations confirm that an increase in dipolar electron-electron couplings leads to higher cross-effect DNP efficiencies. Moreover, the DNP calculations qualitatively reproduce the difference of TOTAPOL and AMUPol DNP efficiencies found experimentally and suggest that AMUPol is particularly effective in improving the DNP efficiency at magnetic fields higher than 500 MHz. The multi-frequency EPR approach will aid in predicting the optimal structures for future DNP agents.
The article describes geological structure of Gorevsky polymetallic deposit and its adjacent territories, according to data from previous geological reports and data

received by author during his work on this deposit
Environmental aspects are an essential part of economic development. Improvement of the environmental situation can have a significant impact on the pace and structure of economic development. For environmental component, it is important to analyze the current state and predict greenhouse gas emissions. The development of methodological approaches in this area will allow for more detailed forecasting of the situation. In order to reduce the emission of greenhouse gases, European countries have set targets for efficiency of energy consumption and widespread use of renewable energy sources, which they have achieved and become world leaders in using them. By 2020, the goal is set for energy consumption to be at least 20% from renewable sources. According to the forecast on average, in 2040 the share of oil products in the structure of fuel consumption in road transport in Europe will be reduced to 80%. Nevertheless, in the countries of Europe, various trends in the field of greenhouse gas emissions are expected. Most countries have a high potential for reducing greenhouse gas emissions from fuel combustion on road vehicles. In Russia, emissions from vehicles are projected to reduce by 8% by 2040.
In this paper we give an example of a linear group such that its tensor square is not linear.Also, we formulate some sufficient conditions for the linearity of non-abelian tensor products G ⊗ H and tensor squares G ⊗ G. Using these results we prove that tensor squares of some groups with one relation and some knot groups are linear.We prove that the Peiffer square of a finitely generated linear group is linear.At the end we construct faithful linear representations for the non-abelian tensor square of a free group and free nilpotent group.
Several limits are taken in to account: sound, boiling, capillary and dry out of evaporator.

In this work the authors proposed to use 1-D model for heat and mass transfer calculations inside a porous heat pipe. To calculate the heat flow, we analyzed processes in four zones: the evaporator, the condenser, the porous body in which fluid flows, and the cavity in which steam flows. We assume that in the evaporator all the incoming liquid evaporates, and in the condenser, all the vapor condenses. The liquid and the vapor are in a state of saturation and, therefore, the pressure in the condenser and the evaporator is equal to the saturation pressure.

The good agreement between theoretical and experimental results is observed.
As it is well known, classical special relativity allows the existence of three different kinds of particles: bradyons, luxons and tachyons.Bradyons have non-zero mass and hence always travel slower than light.Luxons are particles with zero mass, like the photon, and they always travel with invariant velocity.Tachyons are hypothetical superluminal particles that always move faster than light.The existence of bradyons and luxons is firmly established, while the tachyons were never reliably observed.In quantum field theory, the appearance of tachyonic degrees of freedom indicates vacuum instability rather than a real existence of the faster-than-light particles.However, recent controversial claims of the OPERA experiment about superluminal neutrinos triggered a renewed interest in superluminal particles.Driven by a striking analogy of the old Frenkel-Kontorova model of a dislocation dynamics to the theory of relativity, we conjecture in this note a remarkable possibility of existence of the forth type of particles, elvisebrions, which can be superluminal.The characteristic feature of elvisebrions, distinguishing them from tachyons, is that they are outside the realm of special relativity and their energy remains finite (or may even turn to zero) when the elvisebrion velocity approaches the light velocity.
This paper presents a mathematical model of the vapor bubble growth in an initially uniformly superheated liquid.

This model takes into account simultaneously the dynamic and thermal effects and includes the well-known classical equations: the Rayleigh equation and the heat conductivity equation, written with consideration of specifics associated with the process of liquid evaporation. We have obtained a semi-analytical solution to the problem, which consists in reducing the initial boundary value problem with a moving boundary to a system of ordinary differential equations of the first order, valid in a wide range of operating parameters of the process at all its stages: from inertial to thermal, including the transitional one.

It is shown that at large times this solution is consistent with the known solutions of other authors obtained in the framework of the energy thermal model, in particular, for the high Jacob numbers, it is consistent with the Plesset–Zwick solution.
ПОВЕРХНОСТНЫЕ ЭЛЕКТРОМАГНИТНЫЕ ВОЛНЫ:ОТ ВИДИМОГО ДИАПАЗОНА ДО
We consider multiprocessor task scheduling problems with dedicated processors. We determine the tight optima localization intervals for different subproblems of the basic problem. Based on the ideas of a computer‐aided technique developed by Sevastianov and Tchernykh for shop scheduling problems, we elaborate a similar method for the multiprocessor task scheduling problem. Our method allows us to find an upper bound for the length of the optimal schedule in terms of natural lower bound. As a byproduct of our results, a family of linear‐time approximation algorithms with a constant ratio performance guarantee is designed for the NP‐hard subproblems of the basic problem, and new polynomially solvable classes of problems are found.