Hengzongshu/ArticleAgent huggingface dataset:
This work studies thermodynamic properties of CF4 gas hydrates using the statistical thermodynamic model of inclusion compounds, developed in our laboratory and closely associated with Quasiharmonic Lattice Dynamic (QLD) and Molecular Dynamic Simulation (MD).

Thermal expansion coefficient of CF4 gas hydrate is calculated at different hydrate composition.

The thermal expansion coefficient is shown to be lesser than the thermal expansion coefficient of CH4 hydrates, but larger than ice Ih, that still indicates the presence of the self-preservation effect. The thermal expansion coefficient is very sensitive to the composition of the hydrate and can vary in a wide range. The same is true for the hydrate lattice parameter as well; it is shown that at certain conditions it may be even less than for hypothetical empty hydrate structure. The self-preservation effect may be applied for many aspects related to CF4 compound, especially for storage and transportation purposes in producing semiconductor electronics.
A method for the synthesis of amorphous hydrogenated carbon (a-C:H) films with high adhesion is proposed, based on the implantation of carbon ions into a monocrystalline germanium substrate.

The flow of ionized carbon was created by an anode layer ions source in crossed electric and magnetic fields. Propane gas was introduced into the area with an increased electron concentration. The gas flow rate varied from 4.5 to 10 sccm. Ionized fragments of propane, including carbon ions, were accelerated by the electric field and deposited on the substrate. At the same time, ionized carbon penetrated into the surface layer of germanium, creating an interlayer that provides film's adhesion. The substrate was argon sputtered for several minutes before the deposition. The synthesis of the coating includes two-stage process. At the first stage, the films were deposited by an ion beam with a mean energy of about 1.6 keV for 0.5 to 1 hour to obtain an adhesive interlayer. Then the mean energy of the beam was reduced to 0.3 keV and the deposition continued for 3.5 hours to maintain the hardness of the coatings. The deposition rate was changed from 0.3 to 1.3 Å/sec.

Adhesion, the bond between the coating and the substrate is high. There is no detachment of the film while scratching by diamond Berkovich nanoindent with a load of up to 50 mN. The maximum film hardness is 20 GPa. Spectroscopic studies have shown the maximum transmission of germanium with a single side a-C:H coating is 67% at a wavelength of 5 μm, while bare substrate transmission is 51%. The results of the work can be applied in the creation of protective antireflective coatings of optical systems, the creation of medical implants and mechanical devices.
Benefits and costs of meiotic recombination are a matter of discussion. Because recombination breaks allele combinations already tested by natural selection and generates new ones of unpredictable fitness, a high recombination rate is generally beneficial for the populations living in a fluctuating or a rapidly changing environment and costly in a stable environment. Besides genetic benefits and costs, there are cytological effects of recombination, both positive and negative. Recombination is necessary for chromosome synapsis and segregation. However, it involves a massive generation of double-strand DNA breaks, erroneous repair of which may lead to germ cell death or various mutations and chromosome rearrangements. Thus, the benefits of recombination (generation of new allele combinations) would prevail over its costs (occurrence of deleterious mutations) as long as the population remains sufficiently heterogeneous. Using immunolocalization of MLH1, a mismatch repair protein, at the synaptonemal complexes, we examined the number and distribution of recombination nodules in spermatocytes of two chicken breeds with high (Pervomai) and low (Russian Crested) recombination rates and their F1 hybrids and backcrosses. We detected negative heterosis for recombination rate in the F1 hybrids. Backcrosses to the Pervomai breed were rather homogenous and showed an intermediate recombination rate. The differences in overall recombination rate between the breeds, hybrids and backcrosses were mainly determined by the differences in the crossing over number in the seven largest macrochromosomes. The decrease in recombination rate in F1 is probably determined by difficulties in homology matching between the DNA sequences of genetically divergent breeds. The suppression of recombination in the hybrids may impede gene flow between parapatric populations and therefore accelerate their genetic divergence.
A report on the scientific journey to Gansu province of the PRC in July 2019 is presented. During the journey the authors had consultations with the Chinese rock art specialists, visited the Historical museum of Gansu province, the Museum of North-Western University and the Wujiachuan rock art site in Jingyuan county of Gansu province. Brief descriptions of the rock art site and museum collections are given.
The dynamic Mott insulator-to-metal transition (DMT) is key to many intriguing phenomena in condensed matter physics yet it remains nearly unexplored. The cleanest way to observe DMT, without the interference from disorder and other effects inherent to electronic and atomic systems, is to employ the vortex Mott states formed by superconducting vortices in a regular array of pinning sites. The applied electric current delocalizes vortices and drives the dynamic vortex Mott transition. Here we report the critical behavior of the vortex system as it crosses the DMT line, driven by either current or temperature. We find universal scaling with respect to both, expressed by the same scaling function and characterized by a single critical exponent coinciding with the exponent for the thermodynamic Mott transition. We develop a theory for the DMT based on the parity reflection-time reversal (PT) symmetry breaking formalism and find that the nonequilibrium-induced Mott transition has the same critical behavior as thermal Mott transition. Our findings demonstrate the existence of physical systems in which the effect of nonequilibrium drive is to generate effective temperature and hence the transition belonging in the thermal universality class. We establish PT symmetry-breaking as a universal mechanism for out-of-equilibrium phase transitions.
While the former detects only sinusoidal unstable modes, the latter also captures axisymmetric disturbances in agreement with previous results.

We perform linear stability analysis of Landau jet using quasi-parallel approximation and self-similar approach.

The direct comparison of dispersion curves and eigenmode shapes for m = 1 and Re D ≈ 56 indicates that low frequencies are poorly described within quasi-parallel approximation making this approach questionable for a laminar-turbulent transition model.
Compression of β-chlorpropamide using different non-dissolving pressure-transmitting fluids (paraffin, neon and helium)

Compression gives different phases depending on the choice of non-dissolving pressure-transmitting fluid
The production of J/ψ mesons accompanied by open charm hadrons, and of pairs of open charm hadrons in pp collisions at a centre-of-mass energy of 7 TeV has been reported in ref. [1].For all measured production cross-sections the inclusion of charge conjugate processes was implied, so that e.g.,
In this Special Issue of BMC Genomics we present the studies on computational genomics discussed at BGRS\SB-2018 (Bioinformatics of Genome Regulation and Structure\Systems Biology) multi-conference (http
A highly transparent passivating contact (TPC) as front contact for crystalline silicon (c-Si) solar cells could in principle combine high conductivity, excellent surface passivation and high optical transparency. However, the simultaneous optimization of these features remains challenging.

Here, we present a TPC consisting of a silicon-oxide tunnel layer followed by two layers of hydrogenated nanocrystalline silicon carbide (nc-SiC:H(n)) deposited at different temperatures and a sputtered indium tin oxide (ITO) layer (c-Si(n)/SiO 2 /nc-SiC:H(n)/ITO).

While the wide band gap of nc-SiC:H(n) ensures high optical transparency, the double layer design enables good passivation and high conductivity translating into an improved short-circuit current density (40.87 mA cm −2 ), fill factor (80.9%) and efficiency of 23.99 ± 0.29% (certified). Additionally, this contact avoids the need for additional hydrogenation or high-temperature postdeposition annealing steps. We investigate the passivation mechanism and working principle of the TPC and provide a loss analysis based on numerical simulations outlining pathways towards conversion efficiencies of 26%.
In the present article we consider the problem of underwater avalanches propagating over moderate slopes. The main goal of our work is to investigate the avalanche front velocity selection mechanism when it propagates downwards. In particular, we show that the front velocity does not depend univocally on the mass of sediments. This phenomenon is investigated and explained in our study. Moreover, we derive from the first principles a depth-averaged model. Then, we assume that sediments are uniformly distributed along the slope. In this case, they can be entrained into the flow head and a self-sustained regime can be established. One of the main findings of our study is that the avalanche front velocity is not unique due to a hysteresis phenomenon. We attempt to explain this phenomenon using dynamical systems considerations.
Gorely is one of the most active volcanoes in Kamchatka with a rich magmatic and eruptive history reflected in its composite structure. In 2013–2014, a temporary network of 20 seismic stations was installed on Gorely for one year. During the four months of its high degassing rate, seismic activity was mostly expressed in the form of a long-period (LP) seismic tremor.

In this study, we have developed a workflow based on the combination of back-projection (BP), cluster analysis, and matched-filter (MF) methods. By applying it to continuous seismic records for the study period, we were able to identify discrete LP events within the tremor sequence automatically and individually investigate their properties. A catalog obtained using the BP detection algorithm consist of 1741 high-energy events. Cluster analysis revealed that the entire variety of LP earthquakes in this catalog could be grouped into five families, which are sequentially organized in time. Utilizing templates of these families in the MF search resulted in the complementary catalog of 80,615 low-energy events.

The long-term occurrence of highly repetitive LP events in the same location may correspond to resonating conduits behaving in response to the high-pressure gases flowing from the decompressed magma chamber up to the volcano’s crater.
Starting from [Cp*2Sm], the samarium polyarsenide complexes [(Cp*2Sm)2(μ-η2:η2-As2)] and [(Cp*2Sm)4As8], the largest molecular polyarsenide of the f-elements, were obtained.

The picture shows the formation of the polyarsenides As22− and As84− from elemental As0 nanoparticles (top) and the formation of As22− from yellow arsenic (As4) (bottom).

For details see the Communication by P. W. Roesky and co-workers on page 4386.
The paper is devoted to an experimental study of the heat transfer dynamics during evaporation of a single liquid drop on a heated horizontal surface, which is a sapphire glass coated with a high heat-resistant black graphite paint.

The method employed in research can be used to study the heat and mass transfer processes in the gas-liquid-solid contact line region with maximum heat transfer coefficient. Its particular feature as compared to the previously known methods is the solution of the initial-boundary problem for the heat conductivity equation, which in terms of mathematics is a correct problem. Using the thermography method, the sapphire surface temperature fields after single drop impingement are determined.

The data obtained will be used to calculate the heat flux density in the region of the contact line of the drop.
The results are obtained from the final data sample containing 772 million BBbar pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider.

We present a measurement of the time-dependent charge-parity (CP) violation parameters in B0 -> pi+ pi- decays. Using an isospin analysis including results from other Belle measurements.

We obtain the CP violation parameters Acp = +0.33 +/- 0.06 (stat) +/- 0.03 (syst) and Scp = -0.64 +/- 0.08 (stat) +/- 0.03 (syst), where Acp and Scp represent the direct and mixing-induced CP asymmetry, respectively. We find 23.8 < phi2 < 66.8 degrees is disfavored at the 1 sigma level, where phi2 is one of the three interior angles of the CKM unitarity triangle related to B_{u,d} decays.
In this article we describe a simplified version of Polly Cracker-style fully homomorphic encryption scheme.The main feature of our scheme is an ability to define a strict upper bound of ciphertext size when performing calculations on it for both addition and multiplication.Combined with homomorphic properties of Polly Cracker it's able to reach high calculation performance without degrading in time.Another important aspect is utilization of large finite rings for calculations in untrusted environment, which prevents most of known attacks on Polly Cracker family.
The Gamma Factory (GF) is an ambitious proposal, currently explored within the CERN Physics Beyond Colliders program, for a source of photons with energies up to ≈400 MeV and photon fluxes (up to ≈10 17 photons s −1 ) exceeding those of the currently available gamma sources by orders of magnitude. The high‐energy (secondary) photons are produced via resonant scattering of the primary laser photons by highly relativistic partially‐stripped ions circulating in the accelerator. The secondary photons are emitted in a narrow cone and the energy of the beam can be monochromatized, down to 10 −3 –10 −6 level, via collimation, at the expense of the photon flux. This paper surveys the new opportunities that may be afforded by the GF in nuclear physics and related fields.
Background The Drosophila central nervous system (CNS) is a convenient model system for the study of the molecular mechanisms of conserved neurobiological processes. The manipulation of gene activity in specific cell types and subtypes of the Drosophila CNS is frequently achieved by employing the binary Gal4/UAS system. However, many Gal4 driver lines available from the Bloomington Drosophila Stock Center (BDSC) and commonly used in Drosophila neurobiology are still not well characterized. Among these are three lines with Gal4 driven by the elav promoter (BDSC #8760, #8765, and #458), one line with Gal4 driven by the repo promoter (BDSC #7415), and the 69B-Gal4 line (BDSC #1774). For most of these lines, the exact insertion sites of the transgenes and the detailed expression patterns of Gal4 are not known. This study is aimed at filling these gaps. Results We have mapped the genomic location of the Gal4-bearing P -elements carried by the BDSC lines #8760, #8765, #458, #7415, and #1774. In addition, for each of these lines, we have analyzed the Gal4-driven GFP expression pattern in the third instar larval CNS and eye-antennal imaginal discs. Localizations of the endogenous Elav and Repo proteins were used as markers of neuronal and glial cells, respectively. Conclusions We provide a mini-atlas of the spatial activity of Gal4 drivers that are widely used for the expression of UAS–target genes in the Drosophila CNS. The data will be helpful for planning experiments with these drivers and for the correct interpretation of the results.
We establish Gr"{o}bner-Shirshov bases theory for Gelfand-Dorfman-Novikov algebras over a field of characteristic $0$.

As applications, a PBW type theorem in Shirshov form is given and we provide an algorithm for solving the word problem of Gelfand-Dorfman-Novikov algebras with finite homogeneous relations.

We also construct a subalgebra of one generated free Gelfand-Dorfman-Novikov algebra which is not free.
D-glucuronyl C5-epimerase (GLCE) is a potential tumor-suppressor gene involved in heparan sulfate biosynthesis. GLCE expression is significantly decreased in breast tumors; however, the underlying molecular mechanisms remain unclear.

This study examined the possible epigenetic mechanisms for GLCE inactivation in breast cancer. Very little methylation of the GLCE promoter region was detected in breast tumors in vivo and in breast cancer cells (MCF7 and T47D) in vitro and GLCE expression in breast cancer cells was not altered by 5-deoxyazacytidine (5-aza-dC) treatment, suggesting that promoter methylation is not involved in regulating GLCE expression. Chromatin activation by Trichostatin A (TSA) or 5-aza-dC/TSA treatment increased GLCE expression by two to 3-fold due to an increased interaction between the GLCE promoter and the TCF4/β-catenin transactivation complex, or H3K9ac and H3K4Me3 histone modifications. However, ectopic expression of TCF4/β-catenin was not sufficient to activate GLCE expression in MCF7 cells, suggesting that chromatin structure plays a key role in GLCE regulation. Although TSA treatment significantly repressed canonical WNT signaling in MCF7 cells, it did not influence endogenous TCF4/β-catenin mRNA levels and activated TCF4/β-catenin-driven transcription from the GLCE promoter.

A correlation was observed between GLCE, TCF4 and β-catenin expression in breast cancer cells and primary tumors, suggesting an important role for TCF4/β-catenin in regulating GLCE expression both in vitro and in vivo. Taken together, the results indicate that GLCE expression in breast cancer is regulated by a combination of chromatin structure and TCF4/β-catenin complex activity.
Using a combination of Quasiharmonic Lattice Dynamic and Molecular Dynamic Simulation methods in conjunction with well developed statistical thermodynamics theory the thermodynamic properties of nitrogen gas hydrates has been calculated, with the main focus on the thermal expansion coefficient. It is shown that nitrogen gas hydrate displays larger value of the thermal expansion coefficient in comparison with hexagonal ice Ih and empty gas hydrate lattice, moreover this value is very close to one of the carbon dioxide and to other hydrates that have self-preservation effect. Exactly because of this difference in the thermal expansion coefficient it is possible to confirm existence of the self-preservation effect. The self-preservation effect can be used for creation of low-cost technology of hydrates storage and transportation technology applicable for many gas types.
The beam energy measurement system (BEMS) at the upgraded Beijing Electron-Positron Collider (BEPCII) is designed to provide beam energy value with the relative error at the level of 5×10−5. The obvious energy deviation found during J/ψ resonance scan in 2012 leads to great amount of investigations on both BEPCII and BEMS sides.

The reasons causing such an unexpected difference are figured out, which include the neutron damage to HPGe detector, the leakage of RF cavity, and the background from Linac. Based on a series of measures, the ψ(3686) line shape scan is designed and performed.

The experimental result indicates that BEMS can measure the beam energy with the claimed accuracy. The afterward performance of BEMS is smooth and stable, and BEMS will play a crucial role in the following high accurate experiments.
The results of the numerical computations agree well with the experimental data of Duff.

The results of numerical simulations of the propagation of the shock wave in a cylindrical shock tube of large length are presented.

The effects of viscous friction and heat conduction cause significant difference of the shock wave velocity from its inviscid theoretical value. The results of the computations at the considered flow parameters show that the shock wave and the contact surface, starting from a certain moment of time, propagate with equal speeds.
Demyelination induced by cuprizone-is a widely used experimental model to analyze processes of re-and demyelination in the central nervous system (CNS).Here we used C57BL/6 mice; a model of experimental autoimmune encephalomyelitis (EAE) mimicking important aspects of human multiple sclerosis, to evaluate effects of cuprizone-dependent demyelination on different parameters associated with autoimmune inflammation.

The treatment of mice with cuprizone leads to a significant decrease of several indexes characterizing spontaneous and myelin oligodendrocyte glycoprotein (MOG 35-55 ) -induced EAE: increased levels of titers of anti-DNA and anti-MOG antibodies, proteinuria, the generation of abzymes hydrolyzing MOG, myelin basic protein (MBP), and DNA.In addition, spontaneous and MOG-induced EAE was associated with a specific reorganization of mice immune systems leading to significant changes in the level of proliferation and profile of differentiation of mice bone marrow hematopoietic stem cells (HSCs).The immunization of mice with cuprizone (0-40 days) results in a significant decrease in the size of the brain corpus callosum comparing with untreated mice, but only slightly changed level of proliferation and profile of differentiation of mice HSCs.

Our data indicate that treatment with cuprizone is associated with demyelination, which is not associated with autoimmune processes.
CuFe-containing catalysts with different copper oxide content were prepared by fusion of metal salts. The obtained catalyst showed high activity in the hydrogenation of furfural to furfuryl alcohol (FA) in the batch reactor in the presence of isopropanol as a solvent at a temperature of 100 °C and a hydrogen pressure of 6.0 MPa. The yield of FA and furfural conversion are 97% and 98%, respectively. In the solvent-free reaction in the flow-type reactor; the most active catalyst Cu20Fe66Al14 leads to the 96% formation of FA with 100% conversion of furfural at liquid hourly space velocity (LHSV) = 1 h−1; 160 °C and a hydrogen pressure of 5.0 MPa during 30 h. According to the X-ray diffraction (XRD) method, the active component of the spent and fresh Cu20Fe66Al14 catalyst is the same and is represented by metallic copper and Fe3O4-type spinel. Using different methods, the formation of active sites was investigated.
Настоящий обзор освещает последние тенденции в области психолого-педагогических вмешательств для детей с расстройствами аутистического спектра (РАС) с учетом стремительного роста числа публикаций по этой тематике в последние несколько лет. В настоящий момент внимание специалистов в области вмешательств при РАС сосредоточено на соблюдении стандартов научной доказательности и высоком качестве исследований.

Согласно недавним систематическим обзорам, все комплексные программы вмешательства для детей с РАС с доказанной эффективностью в той или иной степени основаны на научной дисциплине прикладного анализа поведения (ПАП). Реализация таких интенсивных поведенческих программ улучшает траекторию развития ребенка с РАС. В частности, метааналитические исследования демонстрируют существенное улучшение показателей IQ и адаптивного поведения у детей, помощь которым оказывалась в рамках ранних интенсивных комплексных программ, основанных на ПАП. Более того, большинство целевых вмешательств с доказанной эффективностью для детей с РАС либо также основаны на ПАП, либо являются компонентами комплексных программ вмешательств, основанных на ПАП.

В последнее время возрастает интерес к модульным вмешательствам, которые позволяют обеспечить высокую степень индивидуализации программы помощи для каждого ребенка с РАС, в то же время удовлетворяя стандартам научной доказательности. Рост числа строгих оценок эффективности различных вмешательств, применяемых в реальных неклинических условиях для компенсации основных дефицитов, связанных с РАС, создает адекватную базу для внедрения и широкого использования вмешательств с доказанной эффективностью в системе помощи людям с РАС, в том числе неспециалистами, прошедшими базовую подготовку.