bluuebunny/crossref_metadata_2025 huggingface dataset:
Colloid thermophoresis in the dilute electrolyte concentration regime: from theory to experiment
Authors: Pu Di , Panahi Amirreza , Natale Giovanniantonio , Benneker Anne M.
Published: April 2023

Colloid thermophoresis in aqueous media is vital for numerous applications in nanoscience and life sciences.
Electrochemically stable frustrated Lewis pairs on dual-metal hydroxides for electrocatalytic CO2 reduction
Authors: Zhang Weining , Yan Yuandong , Wang Jing , Yang Zhenhua , Li Taozhu , Li Hu , Yan Shicheng , Yu Tao , Fan Weiliu , Zou Zhigang
Published: April 2023

The FLPs (Sn–OVs…Zn–OH) are in situ formed on ZnSn(OH)6 by using the electrochemical stability difference of Sn–OH and adjacent Zn–OH. Better electrons transport and stronger orbital interactions between FLPs and CO2 molecules on ZnSn(OH)6 realize the higher reaction dynamics.
Iridium-(κ2-NSi) catalyzed dehydrogenation of formic acid: effect of auxiliary ligands on the catalytic performance
Authors: Gomez-España Alejandra , Lopez-Morales Jorge L. , Español-Sanchez Belinda , García-Orduña Pilar , Lahoz Fernando J. , Iglesias Manuel , Fernández-Alvarez Francisco J.
Published: April 2023

Ir-NSi species stable under catalytic FADH conditions!.
Phosphorescent 2-phenylbenzothiazole PtIV bis-cyclometalated complexes with phenanthroline-based ligands
Authors: Corral-Zorzano Andrea , Gómez de Segura David , Lalinde Elena , Moreno M. Teresa
Published: April 2023

Synthesis, photophysical, electrochemical properties and theoretical calculations of a series of dicationic tris-chelate PtIV complexes, which combine two cyclometalated 2-phenylbenzothiazole and phenanthroline-based ligands.
Cu-doped La0.5Sr0.5CoO3−δ perovskite as a highly efficient and durable electrocatalyst for hydrogen evolution
Authors: Yang Xue , Le Fuhe , Zhou Zikun , Jia Wei , Zhou Dehuo , Chen Xianhao
Published: April 2023

A perovskite-type La0.5Sr0.5Co0.8Cu0.2O3−δ synthesized by a facile sol–gel method was developed as a highly active and durable electrocatalyst for hydrogen evolution. The catalyst exhibits a low overpotential of 154 mV at 10 mA cm−2.
Chinese chestnut shell polyphenol extract regulates the JAK2/STAT3 pathway to alleviate high-fat diet-induced, leptin-resistant obesity in mice
Authors: Liu Suwen , Jiang Wenhong , Liu Chang , Guo Shuo , Wang Hao , Chang Xuedong
Published: April 2023

Chinese chestnut shell polyphenol (CSP) reduce inflammation and increase antioxidant capacity, and activating the LEPR-JAK2/STAT3-PTP1B-SOCS-3 signal transduction pathway to alleviate high-fat diet–induced, leptin-resistant obesity in mice.
Correction: Elucidating the role of multivalency, shape, size and functional group density on antibacterial activity of diversified supramolecular nanostructures enabled by templated assembly
Authors: Sikder Amrita , Pearce Amanda K. , Kumar C. M. Santosh , O’Reilly Rachel K.
Published: April 2023

Correction for ‘Elucidating the role of multivalency, shape, size and functional group density on antibacterial activity of diversified supramolecular nanostructures enabled by templated assembly’ by Amrita Sikder et al., Mater. Horiz., 2023, 10, 171–178, https://doi.org/10.1039/D2MH01117D.
Chemoselective and diastereoselective construction of 4-alkylidene-tetrahydroquinoline via a redox-neutral vinylogous cascade [1,7]-hydride transfer/6-endo-trig cyclization strategy
Authors: Wang Yufeng , Li Qiang , Song Xiaopei , Wang Jing , Yin Xiangcong , Li Shuai-Shuai , Wang Liang
Published: April 2023

The 4-alkylidene-tetrahydroquinoline was constructed via a vinylogous cascade condensation/[1,7]-HT/6-endo-trig cyclization strategy, which features a novel product skeleton, high chemoselectivity & diastereoselectivity, facile introduction of 4-alkylidenyl motifs.
Synthesis of 1,4-ketoaldehydes and 1,4-diketones by Mo-catalyzed oxidative cleavage of cyclobutane-1,2-diols
Authors: Gómez-Gil Sara , Rubio-Presa Rubén , Hernández-Ruiz Raquel , Suárez-Pantiga Samuel , Pedrosa María R. , Sanz Roberto
Published: April 2023

The synthesis of 1,4-dicarbonyls has been accomplished by a dioxomolybdenum-catalyzed oxidative C–C bond cleavage of cyclobutane-1,2-diols with DMSO.
Linear not cyclic – unravelling an anionic initiation pathway for Lewis pair polymerization of lactones
Authors: Nieboer Vincent , Fanjul-Mosteirín Noé , Olsén Peter , Odelius Karin
Published: April 2023

Lewis pair (LP) catalysis is a powerful system for polymerizing lactone monomers into cyclic polymers. However, current work reveals that the DBU-ZnEt2 LP-catalytic system leads to the formation of linear polymers via an anionic initiation pathway.
Recent advances in ultralong room-temperature phosphorescence materials based on metal–organic halides
Authors: Qi Zhenhong , Zhou Bo , Yan Dongpeng
Published: April 2023

Ultralong room-temperature phosphorescence (RTP) materials showing persistent luminescence have attracted much attention in the fields of information encryption, light-emitting diodes (LEDs), sensors, data storage, bioimaging, and so on.
Regulation of various photo-active UOPs in a polymer matrix by tuning intermolecular charge transfer
Authors: Sun Haodong , Wei Xiaoyu , He Yunfei , Xiao Yuxin , Wu Yazhang , Xie Zongliang , Yu Tao
Published: April 2023

Phosphorescent emitters, CzBN and CzPN, show intense UOP in PVA and PMMA matrices. The UOP performance in PVA matrices does not require a photo-active process, while different durations of photo-active process are required in PMMA.
First principles calculation to investigate the effect of Mn substitution on Cu site in CeCu3−xMnxV4O12 (x = 0, 1, 2 and 3) system
Authors: Alharbi F. F. , Mehmood Shahid , Ali Zahid , Aman Salma , Khosa Rabia Yasmin , Kostishyn Vladimir G. , Trukhanov Sergei V. , Sayyed M. I. , Tishkevich Daria I. , Trukhanov Alex V.
Published: April 2023

Structural, electronic, elastic and magnetic properties of CeCu3−xMnxV4O12 (x = 0, 1, 2 and 3) system have been carried out through DFT using GGA, GGA+U and HF potential.
Correction: Boroaluminosilicate geopolymers: role of NaOH concentration and curing temperature
Authors: Nazari Ali , Maghsoodpoor Ali , Sanjayan Jay G.
Published: April 2023

Correction for ‘Boroaluminosilicate geopolymers: role of NaOH concentration and curing temperature’ by Ali Nazari et al., RSC Adv., 2015, 5, 11973–11979, https://doi.org/10.1039/C4RA11665H.
Correction: Polydopamine-functionalized selenium nanoparticles as an efficient photoresponsive antibacterial platform
Authors: Sun Meng , Gao Ping , Wang Bao , Li Xiangyang , Shao Donghan , Xu Yan , Li Leijiao , Li Yunhui , Zhu Jianwei , Li Wenliang , Xue Yingxue
Published: April 2023

Correction for ‘Polydopamine-functionalized selenium nanoparticles as an efficient photoresponsive antibacterial platform’ by Meng Sun et al., RSC Adv., 2023, 13, 9998–10004, https://doi.org/10.1039/D2RA07737J.
A redox-active inorganic crown ether based on a polyoxometalate capsule
Authors: Tamai Nanako , Ogiwara Naoki , Hayashi Eri , Kamata Keigo , Misawa Toshiyuki , Ito Takeru , Kojima Tatsuhiro , Segado Mireia , Petrus Enric , Bo Carles , Uchida Sayaka
Published: April 2023

The POM capsule functions as a redox-active inorganic crown ether. Specifically, Cs+ions are captured in the crown-ether-like pores {Mo3Fe3O6}, which exist on the surface of the capsule, and electrons are stored in the Mo atoms of the capsule.
Atom-economic and stereoselective catalytic synthesis of fully substituted enol esters/carbonates of amides in acyclic systems enabled by boron Lewis acid catalysis
Authors: Xiao Yuanjiu , Tang Lei , Xu Tong-Tong , Sheng Jiang-Yi-Hui , Zhou Zhongyan , Yue Lei , Wang Guoqiang , Oestreich Martin , Feng Jian-Jun
Published: April 2023

A boron Lewis acid catalyzes trans-carboacyloxylations of ynamides with esters to afford fully substituted acyclic enol esters/carbonates in high yields and with excellent stereocontrol.
Effect of scission on alignment of nonionic surfactant micelles under shear flow
Authors: Koide Yusuke , Goto Susumu
Published: April 2023

We investigate the alignment of wormlike micelles under shear flow with dissipative particle dynamics simulations of nonionic surfactant solutions.
Hierarchical Co1.4Ni0.6P@C hollow nanoflowers assembled from ultrathin nanosheets as an anode material for high-performance lithium-ion batteries
Authors: Kong Jinghua , Cui Zhe , Liu Qian , Gao Mengluan , Wang Wenqing , Zou Rujia
Published: April 2023

Co2−xNixP@C hollow nanoflowers were prepared and the optimized Co1.4Ni0.6P@C is used as an anode in LIBs with long cycle stability and high rate capacity.
Highly dispersed and functionalized boron nitride nanosheets contribute to ultra-stable long-life all-solid-state batteries
Authors: Ji Jiawei , Duan Hongliang , Zhou Zheng , Liu Chaoze , Wang Dong , Yan Song , Yang Shaobo , Bai Wenjuan , Xue Yanming , Tang Chengchun
Published: April 2023

Highly dispersed and functionalized BNNSs contribute to ultra-stable long life all-solid-state batteries.
A hybrid hydrogel constructed using drug loaded mesoporous silica and multiple response copolymer as an intelligent dressing for wound healing of diabetic foot ulcers
Authors: Zhang Wenrui , Yang Zun , Zhang Mingzu , He Jinlin , Li Shenzhi , Sun Xingwei , Ni Peihong
Published: April 2023

The hybrid hydrogel composed of drug loaded mesoporous silica and pH/glucose-responsive copolymer was used for the healing of diabetic foot ulcers.
Water-soluble polymer brush-substituted squaraine NIR-II dye for efficient photothermal therapy
Authors: Li Xiaoli , Guo Song , Deng Weixing , Wu Si , Sun Pengfei , Liu Yuanli
Published: April 2023

Water-soluble squaric acid nanoparticles (SQ-POEGMA) with low toxicity and excellent photothermal effect in living organisms by attaching a water-soluble oligomer (POEGMA) to the small molecule squaric acid through a click chemistry reaction.
Using host–guest interactions at the interface of quantum dots to load drug molecules for biocompatible, safe, and effective chemo-photodynamic therapy against cancer
Authors: Wu Xiaoxia , Yang Jinghui , Xing Jie , Lyu Yonglei , Zou Ruifen , Wang Xin , Yao Junlie , Zhang Dinghu , Qi Dawei , Shao Guoliang , Wu Aiguo , Li Jianwei
Published: April 2023

Host–guest interactions were used to direct the interfacial self-assembly of quantum dots into a nanosystem for synergistic chemo-photodynamic therapy against cancer.
White-light-emitting diodes based on blue and green quantum-confined CsPbBr3 perovskite quantum dots and red CdSe quantum dots without ion-exchange issues
Authors: Chang Che-Yu , Mahesh K. P. O. , Chen Ting-Qing , Hong Wei-Li , Lin Yu-Min , Tseng Wei-Cheng , Chen Wei-Sheng , Hsu Ching-Ling , Horng Sheng-Fu , Chao Yu-Chiang
Published: April 2023

A binary mixture solution of blue and green CsPbBr3 QDs was prepared without anion-exchange issues to realize CsPbBr3 QDLEDs with dual-emission peaks, and adding red CdSe QDs to obtain a white LED with CIE coordinates of (0.34, 0.33) was achieved.
From Lab to Legislation: Young Scientists Speak Up at Voice of the Future 2023
Authors: Budden Rebecca
Published: April 2023

Before I began my research in genetically modified (GM) crops, I had never really considered the importance of ‘science policy’. I thought of science as this fascinating realm of discovery, where ‘eureka’ moments by scientists created new advances that changed the world instantly. But as I delved deeper into my research, I realized that the situation was far more complicated, and despite the incredible advancements that GM crops could bring, the lack of support from governments could prevent these advances from ever reaching the public.
Clustering of red sequence galaxies in the fourth data release of the Kilo-Degree Survey
Authors: Vakili Mohammadjavad , Hoekstra Henk , Bilicki Maciej , Fortuna Maria Cristina , Kuijken Konrad , Wright Angus H. , Asgari Marika , Brown Michael , Dombrovskij Elisabeth , Erben Thomas , Giblin Benjamin , Heymans Catherine , Hildebrandt Hendrik , Johnston Harry , Joudaki Shahab , Kannawadi Arun
Published: April 2023

We present a sample of luminous red sequence galaxies as the basis for a study of the large-scale structure in the fourth data release of the Kilo-Degree Survey. The selected galaxies are defined by a red sequence template, in the form of a data-driven model of the colour-magnitude relation conditioned on redshift. In this work, the red sequence template was built using the broad-band optical+near infrared photometry of KiDS-VIKING and the overlapping spectroscopic data sets. The selection process involved estimating the red sequence redshifts, assessing the purity of the sample and estimating the underlying redshift distributions of redshift bins. After performing the selection, we mitigated the impact of survey properties on the observed number density of galaxies by assigning photometric weights to the galaxies. We measured the angular two-point correlation function of the red galaxies in four redshift bins and constrain the large-scale bias of our red sequence sample assuming a fixed ΛCDM cosmology. We find consistent linear biases for two luminosity-threshold samples (‘dense’ and ‘luminous’). We find that our constraints are well characterised by the passive evolution model.
Multi-campaign asteroseismic analysis of eight solar-like pulsating stars observed by the K2 mission
Authors: González-Cuesta L. , Mathur S. , García R. A. , Pérez Hernández F. , Delsanti V. , Breton S. N. , Hedges C. , Jiménez A. , Della Gaspera A. , El-Issami M. , Fox V. , Godoy-Rivera D. , Pitot S. , Proust N.
Published: April 2023

The NASA K2 mission that succeeded the nominal Kepler mission observed several hundred thousand stars during its operations. While most of the stars were observed in single campaigns of ∼80 days, some of them were targeted for more than one campaign. We perform an asteroseismic study of a sample of eight solar-like stars observed during K2 Campaigns 6 and 17, allowing us access to up to 160 days of data. With these two observing campaigns, we determine not only the stellar parameters but also study the rotation and magnetic activity of these stars. We first extract the light curves for the two campaigns using two different pipelines, EVEREST and Lightkurve. The seismic analysis is done on the combined light curve of C6 and C17, where the gap between them was removed and the two campaigns were ‘stitched’ together. We determine the global seismic parameters of the solar-like oscillations using two different methods: one using the A2Z pipeline and the other the Bayesian apollinaire code. With the latter, we also perform the peak-bagging of the modes to characterize their individual frequencies. By combining the frequencies with the Gaia DR2 effective temperature and luminosity, and metallicity for five of the targets, we determine the fundamental parameters of the targets using the IACgrids based on the MESA (Modules for Experiments in Stellar Astrophysics) code. We find that four of the stars are on the main sequence, two stars are about to leave it, and two stars are more evolved (a subgiant and an early red giant). While the masses and radii of our targets probe a similar parameter space compared to the Kepler solar-like stars, with detailed modeling, we find that for a given mass our more evolved stars seem to be older than previous seismic stellar ensembles. We calculate the stellar parameters using two different grids of models, one incorporating and one excluding the treatment of diffusion, and find that the results agree generally within the uncertainties, except for the ages. The ages obtained using the models that exclude diffusion are older, with differences of greater than 10% for most stars. The seismic radii and the Gaia DR2 radii present an average difference of 4% with a dispersion of 5%. Although the agreement is relatively good, the seismic radii are slightly underestimated compared to Gaia DR2 for our stars, the disagreement being greater for the more evolved ones. Our rotation analysis provides two candidates for potential rotation periods but longer observations are required to confirm them.
Imaging of the internal structure of an asteroid analogue from quasi-monostatic microwave measurement data
Authors: Dufaure A. , Eyraud C. , Sorsa L.-I. , Yusuf Y.O. , Pursiainen S. , Geffrin J.-M.
Published: April 2023

Context.The internal structure of small Solar System bodies (SSSBs) is still poorly understood, although it can provide important information about the formation process of asteroids and comets. Space radars can provide direct observations of this structure.

Aims.In this study, we investigate the possibility to infer the internal structure with a simple and fast inversion procedure applied to radar measurements. We consider a quasi-monostatic configuration with multiple measurements over a wide frequency band, which is the most common configuration for space radars. This is the first part (Paper I) of a joint study considering methods to analyse and invert quasi-monostatic microwave measurements of an asteroid analogue. This paper focuses on the frequency domain, while a separate paper focuses on time-domain methods.

Methods.We carried out an experiment in the laboratory equivalent to the probing of an asteroid using the microwave analogy (multiplying the wavelength and the target dimension by the same factor). Two analogues based on the shape of the asteroid 25143 Itokawa were constructed with different interiors. The electromagnetic interaction with these analogues was measured in an anechoic chamber using a multi-frequency radar and a quasi-monostatic configuration. The electric field was measured on 2372 angular positions (corresponding to a sampling offering complete information). We then inverted these data with two classical imaging procedures, allowing us to reach the structural information of the analogues interior. We also investigated reducing the number of radar measurements used in the imaging procedures, that is both the number of transmitter-receiver pairs and the number of frequencies.

Results.The results show that the 3D map of the analogues can be reconstructed without the need for a reference target. Internal structural differences are distinguishable between the analogues. This imaging can be achieved even with a reduced number of measurements. With only 35 well-selected frequencies over 321 and 1257 transmitter-receiver pairs, the reconstructions are similar to those obtained with the entire frequency band.
Discovery of an extended G giant chromosphere in the 2019 eclipse of γ Per
Authors: Diamant S. J. M. , Schröder K.-P. , Jack D. , Rosas-Portilla F. , Fridlund M. , Schmitt J. H. M. M.
Published: April 2023

The November 2019 eclipse of γ Per was a rare opportunity to seek evidence for a chromosphere of the G8 giant, hitherto suspected but not detected. Twenty-nine years after the only other observed eclipse, we aim to find chromospheric absorption in the strong Ca II H&K lines, and to determine its column densities and scale height. Using the Telescopio Internacional de Guanajuato Robótico-Espectroscópico (TIGRE) in Guanajuato (central Mexico) before, during and after the 8 days of total eclipse, we obtained good S/N spectra of the G8 giant alone and composite spectra of the partial phases, near eclipse and far from eclipse. In the near UV of the Ca II H&K and Hϵ lines, the G giant spectrum that was adequately scaled was subtracted from the composite spectra in partial phases, near and far from eclipse, to obtain the A3 companion spectra with and without traces of chromospheric absorption. In addition, we used PHOENIX full non-local thermodynamic equilibrium model atmospheres on the blue A star spectrum, iSpec spectral analysis of the red G giant spectrum, and evolution tracks to study both components of γ Per. For the first time, we present evidence for this rare type of a not very extended G giant chromosphere, reaching out about half of an A-star radius (~1.5 Gm) with a scale height of only 0.17 Gm. By its location in the Hertzsprung-Russell diagram, the γ Per G8 giant is very close to the onset of more extended chromospheres. Furthermore, we show that this giant has a rather inactive chromosphere, and a recent 5 ksec XMM pointing reveals only a very faint, low-energy corona. While the γ Per primary has a mass of ~3.6 M⊙, and its A3 companion has one of ~2.4 M⊙, the latter is too cool (8400 ± 300 K), which is too evolved on the main sequence to be the same age as the primary. The high eccentricity of the 5329.08 days long-period orbit may therefore be reminiscent of a rare capture event. Using the eclipse method, we resolve a pivotal case of a G giant chromosphere, which seems to represent a low-gravity analogue of the inactive Sun. A systematic change of giant chromospheric extent by Hertzsprung-Russell diagram position is confirmed. Compared to the solar chromosphere, the density scale height increases with gravity by ∝ ɡ−1.5.
Quantitative correlation of refractory elemental abundances between rocky exoplanets and their host stars
Authors: Liu Zibo , Ni Dongdong
Published: April 2023

Context. Stellar elemental abundances are generally used to constrain the interiors of rocky exoplanets by assuming planet’s relative abundances of major refractory elements (Fe, Mg, and Si) are similar to those of their host stars. Very recently, a non-one-to-one correlation was found among the compositions of low-mass planets and their host stars. It is therefore of great interest to further explore this correlation for larger samples of rocky exoplanets.

Aims. We focus on a large sample of rocky exoplanets and compute their bulk elemental abundance ratios. We analyze the quantitative correlation between rocky exoplanets and their host stars by comparing the abundance ratios of these refractory elements.

Methods. The interior of rocky exoplanets is assumed to be an iron-rich core overlaid with a silicate mantle. We constrained the bulk composition of rocky exoplanets from their measured mass and radius, using Bayesian statistical approaches. Then we used orthogonal distance regression (ODR) to characterize the compositional correlation between rocky exoplanets and their host stars.

Results. Some rocky exoplanets are shown to have high iron-mass fractions and are thus likely to be iron-enriched super-Mercuries. We find the iron content of rocky exoplanets is dependent on the metallicity [Fe/H] of their host stars. The planets formed around a higher metallicity star generally span a wider range of iron masses, allowing for a higher iron content. Moreover, we directly compared the iron-mass fractions of rocky exoplanets with those deduced from the refractory elemental abundance ratios of their host stars. The results suggest that most rocky planets are more iron-enriched with respect to the initial protoplanetary disk.
Circular ribbon flare triggered from an incomplete fan-spine configuration
Authors: Mitra Prabir K. , Veronig Astrid M. , Joshi Bhuwan
Published: April 2023

Context. Circular ribbon flares are characterised by circular, semi-circular, or elliptical ribbon brightenings. As the physics of such solar events involves a true 3D magnetic topology, they have been extensively studied in contemporary solar research.

Aims. In order to understand the triggering processes and the complex magnetic topology involved in circular ribbon flares, we carried out a thorough investigation of an M-class circular ribbon flare that originated within close proximity of a quasi-separatrix layer (QSL).

Methods. We combined multi-wavelength Atmospheric Imaging Assembly (AIA) and Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI) observations with photospheric Helioseismic and Magnetic Imager (HMI) observations and coronal magnetic field modelling analysis using the non-linear force free field (NLFFF) model.

Results. The circular ribbon flare occurred from a complex magnetic configuration characterised by negative magnetic patches surrounded by positive-polarity regions on three sides. As the negative polarity patches were not surrounded by positive-polarity regions on all four sides, the corresponding coronal field was devoid of any null points. This led to the formation of an incomplete fan-spine-like configuration that deviated from classical fan-spine configurations in null-point topology. Further, an observationally identified QSL structure was situated within the active region, very close to the flaring region. The presence of the QSL was verified by the NLFFF modelling. The far end of the spine-like lines terminated very close to one footpoint location of the QSL lines. Our analysis suggests that activities at this location led to the activation of a flux rope situated within the fan-like lines and triggering of the circular ribbon flare via perturbation of the overall fan-spine-like structure. Further, we identified RHESSI X-ray sources from the footpoints of the QSL structure, which suggests that slipping reconnections can also lead to discernible signatures of particle acceleration.
Mass bias and cosmological constraints fromPlanckcluster clustering
Authors: Lesci G. F. , Veropalumbo A. , Sereno M. , Marulli F. , Moscardini L. , Giocoli C.
Published: April 2023

Aims.We analysed the 3D clustering of thePlancksample of Sunyaev–Zeldovich (SZ) selected galaxy clusters, focusing on the redshift-space two-point correlation function (2PCF). We compared our measurements to theoretical predictions of the standard Λ cold dark matter (ΛCDM) cosmological model, deriving an estimate of the Planck mass bias,bSZ, and cosmological parameters.

Methods.We measured the 2PCF of the sample in the cluster-centric radial ranger ∈ [10, 150] h−1Mpc, considering 920 galaxy clusters with redshiftz ≤ 0.8. A Markov chain Monte Carlo analysis was performed to constrainbSZ, assuming priors on cosmological parameters fromPlanckcosmic microwave background (CMB) results. We also adopted priors onbSZfrom external data sets to constrain the cosmological parameters Ωmandσ8.

Results.We obtained (1−bSZ) = 0.62−0.11+0.14, which agrees with the value required to reconcile primary CMB and cluster count observations. By adopting priors on (1 − bSZ) from external data sets, we derived results on Ωmthat fully agree and are competitive, in terms of uncertainties, with those derived from cluster counts. This confirms the importance of including clustering in cosmological studies in order to fully exploit the information from galaxy cluster statistics. On the other hand, we found thatσ8is not constrained.
Fisheries and aquaculture products consumption in France: when the Covid-19 crisis did not lead to more sustainable purchases
Authors: Heutte Kilian , Daures Fabienne , Lucas Sterenn , Girard Sophie , Alban Frédérique , Le Floc‘h Pascal
Published: April 2023

In terms of food consumption, sustainability dimensions are often conflicting with purchasing power and practical purchases. France lands, farms, imports, and consumes large quantities of fisheries and aquaculture products (FAPs). The pandemic affected both domestic and foreign FAP supply through restrictions on trade and fishing conditions. Numerous sale points offering FAPs were closed during the pandemic. This general context has likely questioned the role of consumers on environmental, economic, and social matters. The aim of the paper is to assess whether the Covid-19 crisis has been an opportunity for French consumers to align their consumption at-home with the environmental issues by favouring domestic producers, short channels, or eco-friendly products. Quantitative data on at-home ordinary household purchases in metropolitan France from 2017 to 2021 was used along with t-test methods. It seems that fresh FAPs consumption did not truly adapt to the domestic fish production in defiance of import restrictions and available surpluses. While fresh shellfish at-home consumption did not change significantly in 2020, salmon and cod are still widely favoured by French consumers at-home, although their French production is virtually non-existent. On the contrary, domestically produced fish species remains poorly consumed at-home. The abundant supply of fresh salmon initially intended for other markets has permitted to consolidate the dominant position of this species on the French at-home consumption market. Initiated by supermarkets and hypermarkets and followed up by consumers, the trend of purchasing pre-packaged fresh fish has been substantially amplified by the pandemic and seems to persist over time.
Electrodynamic withstand and effects of short-circuit currents on high-voltage electrical equipment
Authors: Khrennikov Alexander , Shulga Robert , Alexandrov Nikolay
Published: April 2023

The analysis of simplified expressions allows us to estimate the electrodynamic effects of short-circuit currents on the main elements of a power electrical station and substation, which include busbars, high voltage circuit-breakers, disconnectors, electrical machines and transformers. Examples of calculations of magnetic field induction, mechanical forces and pressures that determine the electrodynamic withstand of electrical equipment are given. Simplified qualitative calculations allow us to assess the impact of key parameters on the selection of appropriate elements and the possible range of their changes during the design, operation and modernization at the preliminary design stage.
Increasing the reliability of the united power systems of central Asia in conditions of energy transition
Authors: Shamsiev Kh.A. , Shamsiev B.Kh. , Khamidov Sh.V.
Published: April 2023

The issues of increasing the reliability of the United Power System of Central Asia in the current conditions of operation and energy transition are analyzed. The issues of integrating renewable energy sources into the energy system are addressed, taking into account the forecasted volumes of their input until 2030.
Methodology for ranking critical energy facilities on the example of some emergencies in the gas industry
Authors: Senderov Sergey , Krupenev Dmitry , Vorobev Sergey , Beresneva Natalia , Boyarkin Denis
Published: April 2023

The paper presents the main components of a methodical approach to assessing the level of significance of critical energy facilities on the example of individual outages of the most important facilities of the Russian gas transmission network. Approaches to modelling the fuel and energy complex of the country and its constituent energy systems: gas, electricity and heat supply are presented. Algorithms for identifying critical energy facilities of the industry, regional and federal levels, as well as examples of their ranking depending on the level of expected consequences for consumers of electrical and heat energy in case of loss of performance of these critical facilities are given.
Using normalized values of indicators to determine the level of energy security on the example of the Central and Southern federal districts
Authors: Smirnova Elena , Senderov Sergey
Published: April 2023

At ISEM SB RAS developed approaches to assessing the level of energy security of regions by convolution of qualitative indicators of its state of energy efficiency. At the same time, the relative weights of indicators in the overall system of their value were taken into account. The article presents a new approach to the formation of normalized values of energy security indicators, which was applied in the analysis of the main trends, scales, as well as the dynamics of changes in the state of energy security of the subjects of the Russian Federation located in the territories of the Central and Southern federal districts. Conclusions about its applicability are drawn on the example of the obtained results of indicative analysis.
In technical higher education institutions current state of the use of modern educational virtual reality laboratories in the teaching of specialized sciences
Authors: Rakhmonov I.U. , Ganiev Sh.R. , Alibekova T.Sh. , Nematov L.A.
Published: April 2023

The use of modern virtual reality laboratories in the teaching of specialized subjects in technical higher educational institutions is a rapidly developing field. These simulators provide an immersive and interactive learning experience that allows students to experiment with complex systems in a safe and controlled environment. In this article, the current state of the laboratories used in the teaching of «Basics of Power Supply» in 16 technical higher education institutions selected for research was analyzed, and the advantages and disadvantages of using modern virtual reality laboratories in this case were considered.
Development of two-speed asynchronous electric motors for the undercarriage of mine self-propelled cars
Authors: Tuychiev Furkat , Haqberdiev Alim
Published: April 2023

The paper presents a new double layer three phase 3/6 pole-changing winding, with 72 slots and 6 terminals with “Y/YY with additional branches” ? “Y-Δ/YY” switching circuit. Using the discretely specified spatial function method, a two-speed asynchronous electric motor with a pole-switched winding was designed for self-propelled mine wagons, which were tested in static and dynamic modes of operation. The application areas of two-speed asynchronous motors with pole-switched windings are given. Currently, dynamic modes have not been investigated in the used two-speed engines. As the object of the study, a two-speed asynchronous motor of the AVTM - 6/12 brand of the self-propelled mine wagons drive was adopted in operating modes with no load on the shaft and when starting with a load of 500 Nm and switching to a second speed.
Methods for determining static characteristics in industrial electrical networks
Authors: Nazirova Khilola
Published: April 2023

The article considers the influence of voltage quality on the efficiency of electrical networks and electrical receivers. The economic characteristics of consumers and load nodes and methods of their construction are given. The construction of static characteristics of load nodes is considered by analyzing the mathematical model of the node and using the results of a passive experiment and the possibility of estimating the stability reserve, total power and energy losses and constructing economic characteristics by voltage from them.
Analysis of superconducting silicon epilayers by atom probe tomography: composition and evaporation field
Authors: Hoummada Khalid , Dahlem Franck , Panciera Federico , Bustarret Etienne , Marcenat C. , Débarre Dominique , El Amraoui Youssef , Mangelinck Dominique
Published: April 2023

Three dimensional distributions of boron atoms incorporated into crystalline silicon (3-9 at.% of boron) well above the solubility limit are measured by atom probe tomography (APT). Samples have been prepared either by gas immersion laser doping (GILD) or by implantation followed by laser annealing (Pulsed Laser Induced Epitaxy: PLIE). GILD and PLIE silicon samples show superconducting properties at low temperatures due to the achieved their high doping level achieved. In both cases, boron atoms are found to be randomly distributed throughout the silicon as revealed by statistical distribution analysis. No clusters or precipitates are detected, which may be related to the high recrystallization rate of the Si:B alloy. A sharp 2D interface between the doped silicon region and the undoped substrate is also observed, characterizing a Si:B/Si epitaxy. Finally, the variation of the evaporation field is investigated by considering either the silicon charge state ratio or the variation of the total applied voltage during the analysis of the Si:B layer and silicon.
Analysis and treatment of current unbalance abnormal situation of 750 kV double-circuit parallel transmission line
Authors: Xie Yadi , Li Shan , Wang Chong , Yang Dingqian
Published: April 2023

At present, the biggest problem faced by short-distance double-circuit parallel lines is the three-phase parameter asymmetry problem caused by non-transposition. This leads to three-phase current asymmetry, especially during heavy load performance is more prominent. Take a 750 kV double circuit parallel erection line in actual operation as an example, use EMTPE electromagnetic transient simulation software to simulate and analyze the current imbalance phenomenon. This paper studies the influence of phase sequence arrangement, distance between loops, distance between wires, line length, equivalent impedance, ground wire conditions and line power flow on current imbalance, and puts forward reasonable restraining measures. The simulation results show that when the line power flow is heavy, the double circuit lines are arranged in the same phase sequence and the distance between circuits is relatively short, there will be a large amplitude of zero sequence current on the line, mainly circulation current. If it is not suitable to adjust the protection measures, it can be considered to adjust the double-circuit lines to reverse phase sequence operation mode. The research results can provide reference for the engineering design of double-circuit parallel transmission lines.
Assessment of aboveground, belowground, and total biomass carbon storage potential of Bambusa vulgaris in a tropical moist forest in Ghana, West Africa
Authors: Adu-Poku Akwasi , Obeng George Yaw , Mensah Ebenezer , Kwaku Michael , Acheampong Ernest Nti , Duah-Gyamfi Akwasi , Adu-Bredu Stephen
Published: April 2023

This article reports on a study conducted to assess the carbon storage potential of Bambusa vulgaris, the predominant bamboo species in Ghana. The study aimed to fill a knowledge gap on the potential of bamboo to sequester carbon for climate change mitigation in Ghana. Unlike previous studies that only focused on aboveground biomass, this study assessed belowground, litter, and coarse wood carbon pools. Allometric parameters and models were used to measure the aboveground biomass, while other carbon pools were directly measured. The results showed that the aboveground biomass of B. vulgaris had a carbon stock of 42.85 ± 9.32 Mg C ha−1, which was 73% of the total biomass carbon stock. The carbon stocks of belowground, coarse wood and litter were 8.57, 3.02, and 4.25 Mg C ha−1, respectively. The study also found that B. vulgaris had a high carbon dioxide sequestration potential of 215.39 Mg CO2e ha−1 compared to 147–275 Mg CO2e ha−1 for trees in general. The findings suggest that B. vulgaris could contribute to Ghana's transition to a low-carbon economy through carbon stock monitoring, reporting, and policy development to minimise the impact of climate change. Moreover, the inclusion of relevant carbon pools, including coarse wood and litter, in forest carbon estimates should be encouraged to provide a comprehensive understanding of the plant carbon cycle.
Konzept Deutschland
Authors: Rychlik Reinhard
Published: April 2023

Ist das deutsche Gesundheitswesen renovierungsbedürftig? Wollen wir es
renovieren? Können wir es renovieren? Am deutschen Wesen soll das
Gesundheitswesen genesen?
Prediction of Hypoglycemia in Diabetic Patients During Colonoscopy
Preparation
Authors: Lu Xiaohua , Xie Lingqiao , Zhao Wane , Zhang Chuangbiao , Luo Xixi , Zhou Yan
Published: April 2023

Objective To explore the clinical outcomes and establish a predictive
model of hypoglycemia during colonoscopy preparation for diabetic patients.

Methods Three-hundred ninety-four patients with diabetes who received
colonoscopy were retrospectively enrolled in this study and assigned to
hypoglycemia or non-hypoglycemia groups. Information about clinical
characteristics and outcomes during colonoscopy preparation was collected and
compared between the two groups. Logistic regression analysis was applied to
identify the risk factors of hypoglycemia. These risk factors were used to
construct a hypoglycemia predictive model verified by the receiver operating
characteristic (ROC) curve and Hosmer-Lemeshow goodness fit test.

Results Among 394 participants, 66 (16.8%) underwent a total of 88
hypoglycemia attacks during the bowel preparation. Grade 1 hypoglycemia
(≤3.9 mmol/L) comprised 90.9% (80/88) of
all hypoglycemia attacks and grade 2 hypoglycemia accounted for 9.1%
(8/88), signifying that grade 1 hypoglycemia is the most common type. No
severe hypoglycemia was identified. The incidence of nocturnal hypoglycemia was
15.9%. Logistic regression analyses revealed that the main risk factors
of hypoglycemia during colonoscopy preparation were postprandial C-peptide,
serum triglyceride, gender, type of diabetes mellitus, and insulin injection
frequencies. The area under the ROC curve of the hypoglycemia prediction model
was 0.777 (95% CI: 0.720–0.833).

Conclusion Diabetic patients are prone to develop mild to moderate
hypoglycemia during colonoscopy preparation. This study proposes a predictive
model that could provide a reference for identifying patients with a high risk
of hypoglycemia during colonoscopy preparation.
Spinal Cord Herniation into a Pseudomeningocele—A Delayed Presentation following a Traumatic Cervical Root Avulsion Injury
Authors: Patel Jay , Stewart James , Biswas Shubhabrata , Zaid Sarsam
Published: April 2023

Background Spinal cord herniation into a traumatic pseudomeningocele is a rare clinical entity. We present the sixth known case and describe surgical management.

Case Presentation A 44-year-old male presented with Brown-Sequard syndrome three decades after a cervical nerve root avulsion injury. Imaging revealed hemicord herniation into a C7/T1 pseudomeningocele in addition to extra-axial cord compression from further pseudomeningoceles. Significant clinical improvement was achieved following surgical repair. The radiological findings and technique for operative repair are described.

Conclusion The case highlights this rare pathology and presentation, describes the surgical measures for repair of cord herniation, and provides evidence for the favorable outcome that can be achieved by surgical intervention.
Coronaries from the Brachiocephalic Artery: Anomalous Origin of the Coronary Arteries in a Case of Situs Inversus and Truncus Arteriosus
Authors: Moharkar Swapnil , Bharati Alpa
Published: April 2023

Congenital anomalies of the coronary arteries are rare. In this article, we reported a case of 6-month-old female who was brought with breathing difficulty and poor weight gain. Echocardiography was done which showed dextrocardia and truncus arteriosus. A cardiac computed tomography confirmed these findings and additionally revealed that the coronary arteries originated from a common vascular channel from the brachiocephalic artery. This is a very rare occurrence. To our knowledge, only a few such cases have been reported in the literature.
CLIL Implementation in Greece
Authors: Varis Sotiria
Published: April 2023

Despite the increasing interest in CLIL in Greece over the past decade, Greek CLIL research is largely absent from
international review studies. This systematic review focuses on primary and secondary education, and examines peer-reviewed
empirical research on CLIL implementation in Greece from 2006 to 2020. A total of 33 items are reviewed using qualitative Content
Analysis. Organized according to commonalities shared by their foci, the reviewed items highlight three main research areas of
CLIL implementation in Greece: (1) CLIL project evaluation, (2) CLIL students’ development, and (3) CLIL teachers. The reviewed
studies suggest that CLIL implementation in Greece tends to be quantitatively examined, context specific, and very small in scale.
The reviewed studies are largely outcome oriented and concerned with issues of efficacy. Contrary to project evaluation and
learning outcomes, CLIL teachers in Greece have received significantly less attention from empirical research.
First principles insight of silicene-ZnS-silicene trilayer heterostructure
Authors: Chhana Lalmuan , Kima Lalrin , Tiwari Ramesh Chandra , Mawia Zodin , Rai Dibya Prakash , Singh Ningthoujam Surajkumar , Devi Yengkhom Rangeela , Vanchhawng Lalmuanpuia , Gurung Shivraj , Zuala Lalhriat
Published: April 2023

Using Density Functional Theory (DFT), 2D hexagonal silicene-ZnS-silicene trilayer heterostructure was studied with van der Waals correction as implemented in Grimme’s method. Small lattice mismatch of about 0.77% only between silicene and ZnS monolayer suggest ease in formation of sandwiched heterostructure. The negative value of total energy at 298 K from MD simulation confirms its ground state stability. Unlike monolayer silicene, our trilayer heterostructure exhibits a direct band gap of 0.63 eV in its equilibrium state. Calculated elastic moduli predict that Si-ZnS-Si has an enhanced ability to resist tensile and shear deformation than the pristine silicene and ZnS monolayer. Due to strong van der Waal’s interaction between the layers, Si-ZnS-Si has much lower thermal coefficient of linear expansion and therefore is more stable against any thermally induced deformation. When a transverse external electric field is applied, we observe direct-to-indirect band gap transition. On increasing the electric field further, the heterostructure remains indirect band gap semiconductor until it abruptly transforms to metallic nature at 1.0 V Å−1. Theoretical prediction of heterostructure property presented in this work may provide valuable data for developing future nanoelectronic devices.
High-performance deep-learning based polarization computational ghost imaging with random patterns and orthonormalization
Authors: Xu Chenxiang , Li Dekui , Fan Xueqiang , Lin Bing , Guo Kai , Yin Zhiping , Guo Zhongyi
Published: April 2023

Polarization computational ghost imaging (PCGI) often requires a large number of samples to reconstruct the targets, which can be optimized by reducing sampling rates with the aids of deep-learning technology. In this paper, the random patterns and successive orthonormalization instead of common Hadamard patterns, has been introduced into the deep-learning based PCGI system to recover high-quality images at lower sampling rates. Firstly, we use a polarized light to illuminate the target with random patterns for sampling. Then we can obtain a vector of bucket detector values containing the reflective information of the target. Secondly, we orthonormalize the vector according to the random patterns. Subsequently, the orthonormalized data can be input into the Improved U-net (IU-net) for reconstructing the targets. We demonstrate that higher-quality image of the testing sample can be obtained at a lower sampling rate of 1.5%, and superior-generalization ability for the untrained complex targets can be also achieved at a lower sampling rate of 6%. Meanwhile, we have also investigated the generalization ability of the system for the untrained targets with different materials that have different depolarization properties, and the system still demonstrates superior performances. The proposed method may pave a way towards the real applications of the PCGI.
p-channel NiO thin film transistors grown with high k ZrO2 gate oxide for low voltage operation
Authors: Salunkhe Parashurama , Kekuda Dhananjaya
Published: April 2023

A low voltage operative and optically transparent p- type Nickel oxide thin film transistor (TFT) was realized. We have systematically investigated the structural and transport properties of both NiO and ZrO2 thin films grown by dc magnetron sputtering. It is shown that a 30 nm thickness of ZrO2 thin film act as gate oxide dielectric for the TFTs. The Metal-Insulator-Metal (MIM) study revealed a high dielectric constant (k) of 28 and the leakage current density significantly persisted at ∼1 nA cm−2 at an applied field of 7 MV cm−1. Further, active layer of p-NiO film was deposited on ZrO2 gate oxide dielectric film and were processed at different post annealing temperatures. The TFTs electrical characteristics with the staggered bottom gate configuration of ITO/ZrO2/NiO/Ag exhibits a stable 104 of Ion/Ioff ratio with a field effect mobility of 15.8 cm2V−1s−1 and recorded sub-threshold swing slope of 512 mV/dec. Moreover, the trap density of 1.82 × 1012 cm−3 was estimated from the Levinson’s plot. Overall, the post annealing temperature seems to improve the transport characteristics of the fabricated TFTs.