Hengzongshu/ArticleAgent huggingface dataset:
Catalytic burner with structured Pt/θ-Al2O3/FeCrAl catalyst was developed and tested for the deep oxidation of liquified petroleum gas (LPG). The use of a FeCrAlloy wire mesh with a θ-Al2O3 protective coating as a support for Pt enabled production of a catalyst with the ability of high rates of heat removal, that is similar in performance to the most efficient powder catalysts. The use of Pt (0.03 wt%)/θ-Al2O3/FeCrAl catalyst in the deep oxidation of LPG allows achieving minimal CO and hydrocarbon and zero NOx emissions. During the life tests, stable operation of the catalyst was observed for 120 h.
Presumptive somatic cells of the copepod Cyclops kolensis specifically eliminate a large fraction of their genome by the process of chromatin diminution. The eliminated DNA (eDNA) remains only in the germline cells. Very little is known about the nature of the sequences eliminated from somatic cells. We cloned a fraction of the eDNA and sequenced 90 clones that total 32 kb. The following organizational patterns were demonstrated for the eDNA sequences. All do not contain open reading frames. Each fragment contains 1–3 families of short repeats (10–30 bp) highly homologous within families (87%–100%). Most repeats are separated by spacers up to 50 bp long. Homologous regions were found between fragments, motifs from 15–300 bp in length. Among fragments there occur groups in which the same motifs are ordered in the same fashion. However, spacers between the motifs differ in length and nucleotide composition. Ubiquitous motifs (those occurring in all fragments) were identified. Analysis of motifs revealed submotifs, each occurring within several motifs. Thus, motifs may be regarded as mosaic structures composed of submotifs (short repeats). Taken together, the results provide evidence of a high organizational ordering of the DNA sequences restricted to the germline. With this in mind, it appears incorrect to refer to this part of the genome as junk. Moreover, eDNA is redundant for only the somatic cells—its function is to be sought in germline cells.
The early postnatal period is critical for the development of the nervous system. Stress during this period causes negative long-term effects, which are manifested at both behavioral and molecular levels.

To simulate the elevated glucocorticoid levels characteristic of early-life stress, in our study we used the administration of dexamethasone, an agonist of glucocorticoid receptors, at decreasing doses at the first three days of life (0.5, 0.3, 0.1 mg/kg, s.c.). In adult male mice with neonatal dexamethasone treatment, an increase in the relative weight of the adrenal glands and a decrease in body weight were observed, while the basal level of corticosterone remained unchanged. Dexamethasone treatment in early life had a negative impact on the learning and spatial memory of adult mice in the Morris water maze. We analyzed the effect of elevated glucocorticoid levels in early life on the expression of the Crh , Avp , Gr , and Mr genes involved in the regulation of the HPA axis in the hypothalami of adult mice.

The expression level of the mineralocorticoid receptor gene ( Mr ) was significantly downregulated, and the glucocorticoid receptor gene ( Gr ) showed a tendency towards decreased expression ( p = 0.058) in male mice neonatally treated with dexamethasone, as compared with saline administration. The expression level of the Crh gene encoding corticotropin-releasing hormone was unchanged, while the expression of the vasopressin gene ( Avp ) was increased in response to neonatal administration of dexamethasone. The obtained results demonstrate a disruption of negative feedback regulation of the HPA axis, which involves glucocorticoid and mineralocorticoid receptors, at the level of the hypothalamus. Malfunction of the HPA axis as a result of activation of the glucocorticoid system in early life may cause the development of cognitive impairment in the adult mice.
The presence of14N nucleus in the scalar coupling network

SABRE hyperpolarization in microtesla fields

results in a 3-fold decrease of15NT1and polarization values for all15N sites in15N2-metronidazoleversus15N3-metronidazole
The proof of the local limit theorem for a critical Galton–Watson process is given under minimal moment restrictions, i.e., under the condition that there exists the second moment of the number of direct offspring of one particle.
The work is devoted to the mathematical construction of the human bronchial tree, calculating the flow of gas in the lungs and modelling the deposition of drops of medicinal aerosols in the human bronchial tree. Analytically built a symmetrical human bronchial tree. To calculate the flow of gas in the lungs and the deposition of aerosols, the method of phasing out the flow in one branch of the bronchial tree is used. Three-dimensional numerical calculations of air flow and aerosol droplets in human lungs were carried out. It is shown that the number of past drops depends (except for the flow, size of drops) on the duration of inhalation.
The Front Cover shows a variety of dienophiles used in the synthesis of functionalized polycyclic aromatic hydrocarbons over the past decade via the Diels-Alder reaction. Being discovered almost a century ago, this powerful synthetic method can be used for construction of new materials for organic electronics – one of the modern challenges of organic chemistry. Linear or angular, planar or curved, molecular or polymeric – the product scope is vast and will broaden even more with further development of new diene and dienophile components. More information can be found in the Minireview by P. A. Zaikin et al.
Denham Harman's oxidative damage theory identifies superoxide (O2•-) radicals as central agents of aging and radiation injury, with Mn2+-dependent superoxide dismutase (MnSOD) as the principal O2•--scavenger. However, in the radiation-resistant nematode Caenorhabditis elegans, the mitochondrial antioxidant enzyme MnSOD is dispensable for longevity, and in the model bacterium Deinococcus radiodurans, it is dispensable for radiation resistance. Many radiation-resistant organisms accumulate small-molecule Mn2+-antioxidant complexes well-known for their catalytic ability to scavenge O2•-, along with MnSOD, as exemplified by D. radiodurans.

Here, we report experiments that relate the MnSOD and Mn-antioxidant content to aging and oxidative stress resistances and which indicate that C. elegans, like D. radiodurans, may rely on Mn-antioxidant complexes as the primary defense against reactive oxygen species (ROS). Wild-type and ΔMnSOD D. radiodurans and C. elegans were monitored for gamma radiation sensitivities over their life spans while gauging Mn2+-antioxidant content by electron paramagnetic resonance (EPR) spectroscopy, a powerful new approach to determining the in vivo Mn-antioxidant content of cells as they age.

As with D. radiodurans, MnSOD is dispensable for radiation survivability in C. elegans, which hyperaccumulates Mn-antioxidants exceptionally protective of proteins. Unexpectedly, ΔMnSOD mutants of both the nematodes and bacteria exhibited increased gamma radiation survival compared to the wild-type. In contrast, the loss of MnSOD renders radiation-resistant bacteria sensitive to atmospheric oxygen during desiccation. Our results support the concept that the disparate responses to oxidative stress are explained by the accumulation of Mn-antioxidant complexes which protect, complement, and can even supplant MnSOD.
Possible signatures which may indicate an existence of antimatter in the Galaxy and in the early universe are reviewed.

A model which could give rise to abundant antimatter in the Galaxy is considered.
The distribution patterns of Orthoptera are described for the boreal zone. The boreal fauna of Eurasia includes more than 81 species. Many of them are widely distributed. The monotypic genus Paracyphoderris Storozhenko and at least 13 species are endemics or subendemics. About 50 species are known from boreal North America. Four endemic species are distributed very locally. Relationships between the faunas of the Eurasian and North American parts of the boreal zone are relatively weak. The boreal assemblages are usually characterized by the low levels of species diversity and abundance. Grasshoppers and their relatives occupy almost exclusively open habitats, such as different types of meadows, mountain steppes and tundras, clearings, openings, bogs, and stony flood plains. The local endemics and subendemics are found only in some habitats of the eastern part of Eurasia and the north-western part of North America. Retrospective and prospective of the boreal fauna of Orthoptera are also discussed.
Outline: 1. Introduction, 2. Confinement, chiral dynamics and light scalar mesons, 3. Chiral shielding of σ(600), chiral constraints, σ(600), f_0(980) and their mixing in ππ\toππ, ππ\to K\bar K, and ϕ\toγ\pi0\pi0, 4. The ϕmeson radiative decays on light scalar resonances. 5. Why a0(980) and f0(980) are not the K\bar K molecules. 6. Light scalars in γγcollisions. Evidence for four-quark components of light scalars is given. The priority of Quantum Field Theory in revealing the light scalar mystery is emphasized.
Herein, two new octahedral molybdenum cyanide cluster compounds, namely [{Ni(NH3)6}4{Ni2(NH3)8}1][Mo6Br6Q2(CN)6]3·12H2O, Q = S (1) and Se (2), have been synthesized as single crystals by slow diffusion of a solution of nickel chloride into aqueous ammonia solutions of a K2Cs2[Mo6Br6Q2(CN)6] molybdenum cyanide cluster-based compound. Both 1 and 2 were structurally characterized by single-crystal X-ray diffraction. They are isostructural and crystallize in the cubic system (Im3[combining macron]m (no. 229); Z = 2, a = 18.147(1) Å, and V = 5976(1) Å3 and a = 18.188(2) Å and V = 6016(2) Å3 for 1 and 2, respectively). 1 and 2 are based on the association of [Mo6Bri6Qi2(CN)a6]4- (Q = S, Se) cluster anions with Ni2+ dimer-based cubic [Ni2(NH3)8]4+ and octahedral [Ni(NH3)6]2+ cations. The structure is based on 2-fold interpenetrated [{Ni(NH3)6}4{Ni2(NH3)8}1][Mo6Br6Q2(CN)6]3 frameworks related to each other by [½, ½, ½] translation. The unit cell is based on a body-centered cubic framework of cubic [Ni2(NH3)8]4+. The [Mo6Bri6Qi2(CN)a6]4- (Q = S, Se) cluster units are located in the middle of the edges and at the center of the faces of the cell. The [{Ni(NH3)6}]2+ cations are located at the center of the cubes of the a/2 edge. The dimers [Ni2(NH3)8]4+ are stabilized by hydrogen bonds between the cyanide ligands of the cluster unit and the hydrogen atoms of the ammonia molecules. Both compounds exhibit a weak antiferromagnetic coupling within the [Ni2(NH3)8]4+ dimer entities at low temperatures together with a paramagnetic behavior originating from the cations of the octahedral [{Ni(NH3)6}]2+ complexes.
OXYS rats are the model of precocious senescence. Numerous studies addressed physiology and behavior in rats of this strain during a postnatal period of their life, however, preimplantation development in OXYS rats has not yet been investigated. This study is addressing preimplantation embryonic development in OXYS rats both in vivo and in vitro. Rats of the WAG strain were used as controls. For studying the in vivo development, the embryos were collected from OXYS and WAG rats on day 5 post coitum, the stages of embryo development were estimated, the percentage of embryos at blastocyst stage and the cell numbers in these blastocysts were counted. In a special experiment, for studying in vitro development, the embryos were collected from both rat strains on day 4 post coitum and were cultured in vitro in P1 medium for 48 hours with or without supplementation with IGF-1 (200 ng/mL). Thereafter the percentage of embryos at blastocyst stage and the cell numbers in these blastocysts were counted in the same manner as for the in vivo experiment. This study reports that in vivo derived blastocysts of OXYS rats contain fewer cells on day 5 of their development than in vivo derived blastocysts of WAG rats. In vitro culture of the early preimplantation embryos in P1 medium mitigated the difference in the rate of embryo development between these two strains, the addition of IGF-1 into culture medium exerts neither negative nor positive effect on the rate of in vitro embryo development in rats of both strains.
The first all-Russia conference with international participation, “Basic Research in Endocrinology: A Modern Strategy for the Development and Technologies of Personalized Medicine”, was held in Novosibirsk on 26–27 November 2020. [...]
In the standard model, S equals sin(2β) to a good level of precision.

Measurements are presented of the CP violation observables S and C in the decays of B(0) and Bover ¯]0 mesons to the J/ψK(S)(0) final state. The data sample corresponds to an integrated luminosity of 3.0 fb(-1) collected with the LHCb experiment in proton-proton collisions at center-of-mass energies of 7 and 8 TeV, and contains a total of 41 560 selected B^{0} and B[over ¯]^{0} decays. The analysis of the time evolution of these decays yields S=0.731±0.035(stat)±0.020(syst) and C=-0.038±0.032(stat)±0.005(syst).

The values are consistent with the current world averages and with the standard model expectations.
The energy spectra of the 3D velocity field, induced by various vortex filaments configurations are reviewed. The especial attention is paid to configurations generating the Kolmogorov type energy spectrum E(k)∝k−5/3. The motivation of this work is related to the problem of modeling classical turbulence with a set of chaotic vortex filaments.

The quantity ⟨v(k)v(-k)⟩ can be exactly calculated, provided that we know the probability distribution functional P({s(ξ,t)}) of vortex loops configurations. The knowledge of P({s(ξ,t)}) is identical to the full solution of the problem of quantum turbulence and, in general, P is unknown. One of the simplifications is to investigate various truthful vortex configurations which can be elements of real vortex tangles. These configurations are: the uniform and nonuniform vortex arrays, the straight lines with excited Kelvin waves on it and the reconnecting vortex filaments.

We demonstrate that the spectra E(k), generated by the these configurations, are close to the Kolmogorov dependence ∝k−5/3, and discuss the reason for this as well as the reason for deviation.
Mutation in the glucocerebrosidase encoding gene (GBA) is one of the most frequent genetic cause of Parkinson's disease.

ICGi034-A induced pluripotent stem cell (iPSC) line obtained by reprogramming peripheral blood mononuclear cells (PBMCs) of a patient with heterozygous c.1226A > G (p.N370S) mutation in the GBA gene can be used for studying the fundamental mechanisms of the pathogenesis of GBA-associated Parkinson's disease, and for potential drug screening.

The iPSCs express pluripotency markers (NANOG, SSEA4, TRA-1-60, OCT4, SOX2), have a normal karyotype, and are capable of producing derivatives of three germ layers.
The Axisymmetric Linear Advanced Neutron source (ALIANCE) is a GDT based fusion neutron source, aiming to produce 10 18 of D-T-neutrons per second and to provide a large testing volume required for fusion materials and components testing.A similar neutron source could also be valuable in the long run for medical isotopes production and as a driver of sub-critical fission reactor.This presentation presents the high flux neutron shielding design and extensive neutronics calculations of GDT based fusion neutron source ALIANCE.Neutron distribution of ALIANCE is strongly inhomogeneous along the axis: significant portion of the neutron flux is generated near the two mirrors, while the rest of it is spread over the remaining central volume of plasma.The shielding design includes 40 cm stainless steel as the main shielding layer and an additional tungsten shielding layer at mirror plugs to protect superconducting coils from neutron damage and reduce nuclear heating.The simulations have been carried out by using Monte-Carlo transport code Super MC with nuclear data library FENDL 3.1.Results show that the nuclear heating on the mirror coils can be reduced by more than two thirds with additional tungsten shield, and fast neutron fluence by 30%.The highest nuclear heating and the highest fast neutron fluence zones are located at the mirror coils, and the values are about 300 W/m 3 and 9×10 18 n/cm 2 respectively, which meets the threshold of ITER superconducting coils.The specific activities of shielding layers are on the order of 10 12 Bq/kg.Ten years after shutdown, specific activities of structural materials will decrease by more than 98% to meet the safety requirements.The modeling and calculations reported in this paper will be beneficial for the pre-conceptual engineering design of ALIANCE.
Regeneration of an imaginal disc involves highly ordered proliferation and pattern regulation of the newly formed tissue. Although the general principles of imaginal disc regeneration have been extensively studied, knowledge of the underlying molecular mechanisms is far from complete. Results from other model organisms suggest that regeneration is the result of local recapitulation of the normal patterning genes.

To analyze the dynamics of one major Drosophila patterning gene, decapentaplegic (dpp), in wing imaginal disc regeneration, a vital GFP reporter together with iontophoretic cell labeling were used.

Our observations reveal that the restoration of compartment-border-specific dpp expression is a common event in imaginal disc regeneration. However, we did not find evidence of an upregulation of dpp expression during the regeneration process.
A numerical simulation of the flow of air around micro or nanoparticles was carried out.

The results of calculating the drag coefficient for various diameters of the free-stream Mach number are presented. For particles with a diameter of 10 and 100 μm, the influence of flow turbulence was taken into account.

The calculated dependences obtained are compared with empirical formulas.
Signal amplification by reversible exchange (SABRE) is a promising hyperpolarization technique, which makes use of spin-order transfer from parahydrogen (the H2 molecule in its singlet spin state) to a to-be-polarized substrate in a transient organometallic complex, termed the SABRE complex.

In this work, we present an experimental method for measuring the magnetic field dependence of the SABRE effect over an ultrawide field range, namely, from 10 nT to 10 T. This approach gives a way to determine the complete magnetic field dependence of SABRE-derived polarization. Here, we focus on SABRE polarization of spin-1/2 hetero-nuclei, such as 13 C and 15 N and measure their polarization in the entire accessible field range; experimental studies are supported by calculations of polarization.

Features of the field dependence of polarization can be attributed to level anticrossings in the spin system of the SABRE complex. Features at magnetic fields of the order of 100 nT-1 μT correspond to "strong coupling" of protons and hetero-nuclei, whereas features found in the mT field range stem from "strong coupling" of the proton system. Our approach gives a way to measuring and analyzing the complete SABRE field dependence, to probing NMR parameters of SABRE complexes and to optimizing the polarization value.
In 2019, a comprehensive study of the internal structure of the talus rock glacier in the Dzhelo River valley was carried out (North-Chuya Range). The identification of the internal structure was performed using electrical resistivity tomography and GPR sounding. In order to compare the internal structure of the rock glacier with its surface morphology, we carried out aerial photography and constructed a digital terrain model. The study revealed that the depth of the rock-ice core varies from 2.5-3 m to 10 m, and the thickness ranges from 7 m to 30 m. The consolidation cores of the rock-ice material are confined to inter-ridge depressions in the rock glacier body. The potential volume of a rock-ice core is 800 thousand m3, which is 53% of the rock glacier total volume, the ice volume in the rock-ice core can be as much as 400 thousand m3.
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 develop a theory for the DMT based on the parity reflection-time reversal (PT) symmetry breaking formalism.

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 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.
Foreign investment is the driving force behind the development of the Russian oil and gas complex and the economy as a whole. This was the case until 2014; the current situation has changed somewhat: the inflow of foreign investment in the Russian energy sector is complicated not only by the imposed sanctions, but also by the main obstacle - instability of world energy prices. The current price conjuncture, as well as the situation with supply and demand, is pushing foreign investors to reduce investment proposals. The article analyzes the dynamics, species and sectoral structure of annual flows of foreign investment in the Russian economy, which allows to identify the main trends in attracting foreign capital in the past few years. In the Russian economy, at the moment, the most attractive areas for foreign investors are mining, manufacturing, wholesale and retail trade. These economic activities account for more than 60% of the total foreign investment.
We demonstrate beam self-cleaning in a tapered Ytterbium-doped graded-index multimode fiber in both active and passive configurations

without accompanying self-phase modulation induced spectral broadening or frequency conversion
ИЗМЕРЕНИЕ ИОНИЗАЦИОННЫХ ВЫХОДОВ ЯДЕР ОТДАЧИ В ЖИДКОМ АРГОНЕ С ПОМОЩЬЮ ДВУХФАЗНОГО ДЕТЕКТОРА С ОПТИЧЕСКИМ СЧИТЫВАНИЕМ
We lay the foundation for a version of $r$-spin theory in genus zero for Riemann surfaces with boundary.

In particular, we define the notion of $r$-spin disks, their moduli space, and the Witten bundle; we show that the moduli space is a compact smooth orientable orbifold with corners, and we prove that the Witten bundle is canonically relatively oriented relative to the moduli space.

In the sequel to this paper, we use these constructions to define open $r$-spin intersection theory and relate it to the Gelfand–Dickey hierarchy, thus providing an analog of Witten’s $r$-spin conjecture in the open setting.