bluuebunny/crossref_metadata_2025 huggingface dataset:
MACl enhanced electron extraction in all-inorganic Cs2AgBiBr6 perovskite photovoltaics
Authors: Duan Jinxia , Yang Yi , Tang Jie , Wan Houzhao , Ma Guokun , Shen Liangping , Zhang Jun , Wang Hao , Zhou Hai
Published: January 2023

Organic-halide treatment is used to maximize electron extraction of Cs2AgBiBr6 solar cells with a PCE of 2.03% and excellent long-term stability.
Formation of heterogeneous clusters in superfluid helium nanodroplets: phthalocyanine and water
Authors: Fischer Johannes , Slenczka Alkwin
Published: January 2023

The investigation of Pc–H2O clusters inside superfluid helium droplets revealed 8 isomeric variants. It contrasts to only 3 isomers reported from quantum chemical calculations in the gas phase. This supports the involvement of helium atoms.
N-doped rutile TiO2 nanorod@g-C3N4 core/shell S-scheme heterojunctions for boosting CO2 photoreduction activity
Authors: Gu Haohui , Liang Feng , Wang Xiaohan , Wu Shuaibing , Lv Gongye , Zhang Haijun , Zhang Shaowei , Lu Lilin , Dong Zhijun
Published: January 2023

A novel core/shell structure composed of N-doped rutile TiO2@g-C3N4 (NT@CNx) with an S-scheme heterojunction is successfully synthesized. The S-scheme heterojunction optimizes the electrochemical property and redox ability of the NT@CNx composite.
Influence of alkali metal cations on the formation of the heterobimetallic actinide tert-butoxides [AnM3(OtBu)7] and [AnM2(OtBu)6] (AnIV = Th, U; MI = Li, Na, K, Rb, Cs)
Authors: Lichtenberg Andreas , Zegke Markus , Nichol Gary S. , Raauf Aida , Mathur Sanjay
Published: January 2023

Heterobimetallic tert-butoxides of alkali metal cations with actinide (IV) centers exhibit two distinctive structural motifs, [AnM2(OtBu)6] and [AnM3(OtBu)7] (AnIV = Th, U and MI = Li-Cs), evidently governed by the size of the alkali metal ions.
Co-precipitation of Mg-doped Ni0.8Co0.1Mn0.1(OH)2: effect of magnesium doping and washing on the battery cell performance
Authors: Laine Petteri , Hietaniemi Marianna , Välikangas Juho , Kauppinen Toni , Tynjälä Pekka , Hu Tao , Wang Shubo , Singh Harishchandra , Ulla Lassi
Published: January 2023

Co-precipitation of Ni0.8Co0.1Mn0.1(OH)2(NCM811) and Mg-doped (0.25 wt% and 0.5 wt%) NCM811 precursors is carried out from concentrated metal sulphate solutions.
Unusual core engineering on a copper hydride nanoball
Authors: Silalahi Rhone P. Brocha , Liao Jian-Hong , Tseng Yu-Fang , Chiu Tzu-Hao , Kahlal Samia , Saillard Jean-Yves , Liu C. W.
Published: January 2023

Through unexpected core engineering, modification of the inner Cu4tetrahedron in [Cu28H15]+into a Cu3triangle in [Cu27H15] can be achieved keeping the shell of the Cu24rhombicuboctahedron intact.
Toward low-cost and sustainable SERS substrate: novel ultrasensitive AMS5 nanoflowers
Authors: Xiong Shengjie , Li Jia , Wei Maobin , Han Donglai , Lang Jihui , Liu Huilian , Yang Jinghai , Liu Yang , Gao Ming
Published: January 2023

The Ag-doped MoS2 was used as SERS substrate in various detections. This work offers a novel idea to synthesize low-cost ultrasensitive SERS substrates, which is expected to extend the applications of semiconduct materials in clinical diagnosis.
Health prognostics for lithium-ion batteries: mechanisms, methods, and prospects
Authors: Che Yunhong , Hu Xiaosong , Lin Xianke , Guo Jia , Teodorescu Remus
Published: January 2023

Critical review of main aging mechanisms and health prognostic methods for lithium-ion batteries. Comprehensive summary of challenges and prospects for future trends with potential solutions.
Carbon neutrality strategies for sustainable batteries: from structure, recycling, and properties to applications
Authors: Lin Jiao , Zhang Xiaodong , Fan Ersha , Chen Renjie , Wu Feng , Li Li
Published: January 2023

Research on new energy storage technologies has been sparked by the energy crisis, greenhouse effect, and air pollution, leading to the continuous development and commercialization of electrochemical energy storage batteries.
Polysaccharides from natural Cordyceps sinensis attenuated dextran sodium sulfate-induced colitis in C57BL/6J mice
Authors: Chen Shuping , Wang Junqiao , Dong Nan , Fang Qiuyue , Zhang Yanli , Chen Chunhua , Cui Steve W. , Nie Shaoping
Published: January 2023

As potential candidates for treating ulcerative colitis (UC), polysaccharides from natural Cordyceps sinensis inhibited the activation of the NF-κB pathway, enhanced the intestinal barrier, increased the content of sIgA and modulated the gut microbiota in colitis mice.
Catalyst-free transfer hydrogenation of activated alkenes exploiting isopropanol as the sole and traceless reductant
Authors: Das Tamal Kanti , Rodriguez Treviño Agustin M. , Pandiri Sanjay , Irvankoski Sini , Siitonen Juha H. , Rodriguez Sara M. , Yousufuddin Muhammed , Kürti László
Published: January 2023

Described herein is an unconventional catalyst-free transfer hydrogenation reaction of activated alkenes using isopropanol as an eco-friendly reductant and solvent.
Poly(alkyl-biphenyl pyridinium) anion exchange membranes with a hydrophobic side chain for mono-/divalent anion separation
Authors: Yang Hongxin , Afsar Noor Ul , Chen Qian , Ge Xiaolin , Li Xingya , Ge Liang , Xu Tongwen
Published: January 2023

Poly(alkyl-biphenyl pyridinium) AEMs with a hydrophobic side chain were fabricated for mono-/divalent anion separation.
Debonding-on-demand adhesives based on photo-reversible cycloaddition reactions
Authors: Inada Moeka , Horii Tatsuhiro , Fujie Toshinori , Nakanishi Takuya , Asahi Toru , Saito Kei
Published: January 2023

Debonding-on-demand adhesives were designed by fabricating photochemical reversible bonds and using dynamic polymer cleavage and flow generation mechanisms.
Self-organizing maps as a data-driven approach to elucidate the packing motifs of perylene diimide derivatives
Authors: Marin Francesco , Zappi Alessandro , Melucci Dora , Maini Lucia
Published: January 2023

The efficient classification or prediction of crystal structures into a small number of families of related structures can be extremely important in the design of materials with specific packing and properties.
Surface functionalized silver-doped ZnO nanocatalyst: a sustainable cooperative catalytic, photocatalytic and antibacterial platform for waste treatment
Authors: Vikal Sagar , Gautam Yogendra K. , Meena Swati , Parewa Vijay , Kumar Ashwani , Kumar Ajay , Meena Sushila , Kumar Sanjay , Singh Beer Pal
Published: January 2023

The different dyes used and discharged in industrial settings and microbial pathogenic issues have raised serious concerns about the content of bodies of water and the impact that dyes and microbes have on the environment and human health.
Titania supported dioxidotungsten(vi) complex as bio-mimic for the type II copper-containing oxidase enzyme phenoxazinone synthase
Authors: Maurya Mannar R. , Chauhan Abhilasha
Published: January 2023

Dioxidotungsten(vi) complex of 4-[3,5-bis(2-hydroxyphenyl)-1,2,4-triazol-1-yl] benzoic acid immobilized on amine-functionalized titania has been explored for bio-mimicking the enzyme phenoxazinone synthase in the presence of H2O2.
Three-dimensional hierarchical flower-like bimetallic–organic materialsin situgrown on carbon cloth and doped with sulfur as an air cathode in a microbial fuel cell
Authors: Lu Jinrong , Ren Linde , Li Cheng , Liu Hua
Published: January 2023

Herein, the output power density produced by Zn/Co-S-3DHFLM as the cathode catalyst of an MFC was higher than that of Co-3DHFLM.
Horner–Wadsworth–Emmons reaction as an excellent tool in the synthesis of fluoro-containing biologically important compounds
Authors: Bilska-Markowska Monika , Kaźmierczak Marcin
Published: January 2023

The newest reports on the synthesis of fluorine-containing valuable biomoleculesviathe Horner–Wadsworth–Emmons reaction are presented.
Divergent dehydroxyfluorination and carbonation of alcohols with trifluoromethyl trifluoromethanesulfonate
Authors: Ran Long-Yu , Ding Xue , Yan Xue-Ping , Zhang Cheng-Pan
Published: January 2023

CF3SO2OCF3 was proved to be a useful “F”/“CO” reagent in the selective preparation of alkyl fluorides and carbonates from alcohols by varying the bases.
Control of the diastereoselectivity at C(20) in the formation of C(21)-fluorinated thevinols
Authors: Sandulenko Irina V. , Kovaleva Ekaterina S. , Zelentsova Maria V. , Ambartsumyan Asmik A. , Gorlov Sergey N. , Danshina Anastasia A. , Aysin Rinat R. , Moiseev Sergey K.
Published: January 2023

A method is reported to control the stereoselectivity at C(20) in the syntheses of 20-R-21,21,21-trifluorothevinols, the opioid ligands incorporating fluorine atoms within the pharmacophore associated with the surroundings of the C(20) carbon atom.
Topological control of metal–organic frameworks toward highly sensitive and selective detection of chromate and dichromate
Authors: Li Zi-Jian , Ju Yu , Wu Xiao-Ling , Li Xiaoyun , Qiu Jie , Li Yongxin , Zhang Zhi-Hui , He Ming-Yang , Zhang Linjuan , Wang Jian-Qiang , Lin Jian
Published: January 2023

A synthetic modulation approach has given rise to two topologically distinct thorium-based MOFs, whose polymorphism allows for elucidating how the structure of MOF, in isolation, influences the sensing efficacy of Cr(vi) oxyanions.
Design, fabrication, mechanical, and in vitro evaluation of 3D printed ZrO2 reinforced polylactide scaffolds through fused deposition modeling
Authors: Alam M. Mushtaq , Ezhilan M. , Saha Sunjeet , Gopan Gopika , Mani Maheswaran , Kannan S.
Published: January 2023

FDM approach to build defect-free and intricate shapes of 3D printed ZrO2 based PLA composites.
A layer by layer strategy for the TiO2/CuxO/CeO2hierarchical structure supported on carbon cloth as a photocarrier-assisted photothermal catalyst with fast visible light response
Authors: Shao Mingzhe , Feng Xilan , Liu Dapeng , Zhang Yu
Published: January 2023

CC/TiO2/CuxO/CeO2hierarchical structures show fast visible light response with light irradiation playing a controllable switch role, completing photocarrier-assisted photothermal catalytic CO oxidation.
Carbene-catalyzed kinetic resolution of bispirooxindoles: selective lactam amidation and access to challenging chiral scaffolds
Authors: Pu Yiru , Zuo Yi , Ling Jie , Li Meimei , Huang Hui , Zhang Chaozheng , Yang Jirui , Deng Yun , Wang Maolin , Lu Jun
Published: January 2023

Despite kinetic resolution (KR) via N-heterocyclic carbene (NHC)-catalyzed acylation minimizing any competitive racemic background reactions, the KR of NHC-activated lactam amidation is mostly uninvestigated.
Metal-free photoinduced alkylative [3 + 2] annulation of terminal alkynes with N-alkyl isoquinolin-2-iums by catalytic isoquinoline-based electron donor–acceptor complex
Authors: Han Ya-Fei , Li Yang , Ouyang Xuan-Hui , Hu Ming , Qin Jing-Hao , Tan Ze , Li Jin-Heng
Published: January 2023

Catalytic isoquinoline-based EDA complex photoreduced alkylative [3 + 2] annulation of alkynes with N-alkyl isoquinolin-2-iums toward pyrrolo[2,1-a]isoquinolines is depicted.
Transition-metal-free chemoselective catalytic hydrosilylation of tertiary amides to hemiaminals by Me2SiH2generated from controllable disproportionation of 1,1,3,3-tetramethyldisiloxane
Authors: Wu Xiaoyu , Wang Yue , Yang Liqun , Xie Xiaomin , Zhang Zhaoguo
Published: January 2023

We present a KOtBu-catalyzed hydrosilylation for the chemoselective reduction of various tertiary amides to hemiaminals. Mechanistic investigations reveal a controllable disproportionation of TMDS to generate the distinctive reductant Me2SiH2.
Pd(iv)-induced nucleophile delivery in a cascade double Heck reaction
Authors: Migulin Vasily A.
Published: January 2023

A new reaction has been described.
Synthesis, characterization, and in vitro anti-cholinesterase screening of novel indole amines
Authors: Gondal Humaira Yasmeen , Tariq Sobia , Akhter Shahzaib , Raza Abdul Rauf , Rehman Muhammad Fayyaz ur , Rubab Syeda Laila
Published: January 2023

The present study involved the targeted synthesis and characterization of novel indole amines with anti-acetylcholinesterase profiling.
Functionally gradient three-dimensional graphene foam-based polymeric scaffolds for multilayered tissue regeneration
Authors: Gupta Pallavi , Waghmare Sonali , Kar Srabani , Illath Kavitha , Rao Suresh , Santra Tuhin Subhra
Published: January 2023

The research includes the development of functionally gradient, polymer reinforced 3D graphene foam-based scaffolds for tissue regeneration via the simple process of spin coating and drying.
New boro amino amide organocatalysts for asymmetric cross aldol reaction of ketones with carbonyl compounds
Authors: Begum Zubeda , Seki Chigusa , Okuyama Yuko , Kwon Eunsang , Uwai Koji , Tokiwa Michio , Tokiwa Suguru , Takeshita Mitsuhiro , Nakano Hiroto
Published: January 2023

Distinct types of new boron fused primary amino amide organocatalysts were designed and synthesized from commercially available amino acids.
Green AOT reverse micelles as nanoreactors for alkaline phosphatase. The hydrogen bond “dances” between water and the enzyme, the reaction product, and the reverse micelles interface
Authors: Monti Gustavo A. , Falcone R. Darío , Moyano Fernando , Correa N. Mariano
Published: January 2023

Schematic representation of the effect on ML/AOT/water and IPM/AOT/water at different pH values.
Ligand-assisted morphology regulation of AuNi bimetallic nanocrystals for efficient hydrogen evolution
Authors: Zhang Chu , Xue Can
Published: January 2023

Bimetallic AuNi Janus and core–shell nanocrystals were synthesized by varying the structure and concentration of phosphine ligands, and showed excellent H2 evolution activity when loaded on graphitic carbon nitride for photocatalytic H2 generation.
Thermal insulation properties of lightweight, self-healing, and mesoporous carrageenan/PMMA cryogels
Authors: Mirzaei Akbar , Javanshir Shahrzad , Servati Peyman
Published: January 2023

Novel light weight microporous self-healing cryogel with low thermal conductivity and flame-retardant properties was prepared from biocompatible and natural carrageenan moss and polymethyl methacrylate.
Silver-catalyzed direct selanylation of indoles: synthesis and mechanistic insights
Authors: Rios Elise Ane Maluf , Gomes Carla M. B. , Silvério Gabriel L. , Luz Eduardo Q. , Ali Sher , D'Oca Caroline da Ros Montes , Albach Breidi , Campos Renan B. , Rampon Daniel S.
Published: January 2023

We developed a combined experimental and theoretical study that gives mechanistic insights into the silver-catalyzed direct selanylation of indoles.
Tailor-designed binary Ni–Cu nano dendrites decorated 3D-carbon felts for efficient glycerol electrooxidation
Authors: Ghaith Mohamed E. , Abd El-Moghny Muhammad G. , El-Nagar Gumaa A. , Alalawy Hafsa H. , El-Shakre Mohamed E. , El-Deab Mohamed S.
Published: January 2023

3D-carbon felt is decorated with electrodeposited binary Ni–Cu nano dendrites. Ni (deposited sequentially) covers homogeneously the dendritic Cu surface and the NiCu@CF electrode, deposited sequentially, showed the best glycerol electrooxidation activity.
De novo creation of fluorescent molecules via adversarial generative modeling
Authors: Tan Zheng , Li Yan , Wu Xin , Zhang Ziying , Shi Weimei , Yang Shiqing , Zhang Wanli
Published: January 2023

The development of AI for fluorescent materials design is technologically demanding due to the issue of accurately forecasting fluorescent properties.
Preparation of a Bi6O5(OH)3(NO3)5·2H2O/AgBr composite and its long-lasting antibacterial efficacy
Authors: Zhao Mei , Liu Mengchen , Yao Jinfeng , Li Wenyu , Li Chengdong , Zhang Qian , Zhang Zhihua , Wang Wenjun
Published: January 2023

A novel Bi6O5(OH)3(NO3)5·2H2O/AgBr (6535BBN/AgBr) composite with long-lasting antibacterial efficacy was prepared.
The efficacy of instruction in application of mole ratios and submicro- and macro-scopic equivalent forms of the mole within the unit factor method
Authors: Stott Angela Elisabeth
Published: January 2023

The unit factor method, a generic strategy for solving any proportion-related problem, is known to be effective at reducing cognitive load through unit-cancellation providing step-by-step guidance. However, concerns have been raised that it can be applied mindlessly. This primarily quantitative prepost study investigates the efficacy of instruction aimed at addressing such concerns. This was done by making submicro- and macro-scopic equivalent forms of the mole concept, and the meanings of mole ratios, explicit, and emphasising the application of these within the unit factor method to solve stoichiometry calculations. Data were collected from 161 South African Physical Sciences teachers’ answers to four calculation, and 14 conceptual, questions in each of a pre- and a post-test written at the start and end, respectively, of a two-day workshop at which such instruction was implemented. These data were analysed for changes in strategy type and calculation and conceptual knowledge, i.e., heuristic power. A small (n = 7) group retained deficient calculation strategies in which they failed to recognise the need to apply proportion to the mole ratio. For the remainder, a weak but significant correlation was found between their conceptual and calculation improvements. There was high uptake of the unit factor method in the posttest, although a group (n = 33) which began with relatively good calculation knowledge largely rejected this method. Statistically significant improvements in both conceptual and calculation knowledge were found regardless of the extent of uptake of the unit factor method, however the calculation improvement measured was significantly lower for the group which showed moderate uptake of the unit factor method, suggesting they may have needed a longer intervention. Based on the findings, speculations are made regarding the nature of knowledge and the mechanism of development of heuristic power. Long-term effects of such an intervention would, however, still need to be determined.
Selective hydrodeoxygenation of levulinic acid to γ-valerolactone over Ru supported on functionalized carbon nanofibers
Authors: Bounoukta Charf Eddine , Megías-Sayago Cristina , Rendón Nuria , Ammari Fatima , Penkova Anna , Ivanova Svetlana , Centeno Miguel Ángel , Odriozola Jose Antonio
Published: January 2023

In this work, carbon nanofibers (CNFs) have been successfully functionalized by using different approaches and finally used for the preparation of Ru based catalysts.
Ionisation and swelling behaviour of weak polyampholyte core–shell networks – a Monte Carlo study
Authors: Strauch Christian , Schneider Stefanie
Published: January 2023

Metropolis Monte Carlo simulations were used to systematically investigate the electrostatically driven swelling behaviour of weak polyampholyte microgels as a function of pH and pK.
Two-dimensional diffusiophoretic colloidal banding: optimizing the spatial and temporal design of solute sinks and sources
Authors: Raj Ritu R. , Shields C. Wyatt , Gupta Ankur
Published: January 2023

We numerically explore diffusiophoretic banding of colloidal particles in two dimensions by spatio-temporally designing solute sources and sinks. We discover an optimal design set by a balance of interpole diffusion and molar rate decay timescales.
A comprehensive characterization of cell-free RNA in spent blastocyst medium and quality prediction for blastocyst
Authors: Shi Huajuan , Pan Min , Jia Erteng , Lu Wenxiang , Zhou Ying , Sheng Yuqi , Zhao Xiangwei , Cai Lingbo , Ge Qinyu
Published: January 2023

The rate of pregnancy can be affected by many factors in assisted reproductive technology (ART), and one of which is the quality of embryos. Therefore, selecting the embryos with high potential is crucial for the outcome. Fifteen spent blastocyst medium (SBM) samples were collected from 14 patients who received in vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI), seven from high-grade embryos and eight from low-grade embryos. Cell-free RNA (cf-RNA) profile of SBM samples were analyzed by RNA sequencing in the present study. It was found that a large amount of cf-RNA were released into SBM, including protein-coding genes (68.9%) and long noncoding RNAs (lncRNAs) (17.26%). Furthermore, a high correlation was observed between blastocyst genes and SBM genes. And the cf-mRNAs of SBM were highly fragmented, and coding sequence (CDS) and untranslated (UTR) regions were released equally. Two hundred and thirty-two differentially expressed genes were identified in high-grade SBM (hSBM) and low-grade SBM (lSBM), which could be potential biomarker in distinguishing the embryos with different quality as an alternative or supplementary approach for subjective morphology criteria. Hence, cf-RNAs sequencing revealed the characterization of circulating transcriptomes of embryos with different quality. Based on the results, the genes related to blastocyst quality were screened, including the genes closely related to translation, immune-signaling pathway, and amino acid metabolism. Overall, the present study showed the types of SBM cf-RNAs, and the integrated analysis of cf-RNAs profiling with morphology grading displayed its potential in predicting blastocyst quality. The present study provided valuable scientific basis for noninvasive embryo selection in ART by RNA-profiling analysis.
Comparison of Linguistic Error Production in Conversational Language Among Boys With Fragile X Syndrome + Autism Spectrum Disorder and Autistic Boys
Authors: Maltman Nell , Hilvert Elizabeth , Friedman Laura , Sterling Audra
Published: January 2023

Purpose:

Expressive language impairments are common among school-age boys with fragile X syndrome (FXS) and autistic boys. Given the high co-occurrence of autism spectrum disorder (ASD) among individuals with FXS, cross-condition comparisons can elucidate the specificity of such impairments as they relate to ASD. Language samples can provide fruitful information regarding individuals' grammatical skills in less structured formats relative to standardized measures. This study examined grammatical errors produced during a conversational language sample among 20 boys with FXS and co-occurring ASD (FXS + ASD) and 19 autistic boys matched on ASD severity.

Method:

Language samples were coded for omissions and errors at the word and utterance levels. Participants' grammatical errors were also compared to separate mental age–matched and mean length of utterance–matched boys from a reference database.

Results:

Boys with FXS + ASD and autistic boys produced similar rates of errors across all categories. Relative to their matched comparison groups, boys with FXS + ASD and autistic boys produced significantly more omissions during conversation.

Conclusions:

These findings suggest that omissions may be a unique grammatical marker associated with the ASD phenotype. Further examination of omissions across diagnostic groups would aid in clarifying the specificity of omissions in the language phenotype of ASD.
The Effect of Open Access on Scholarly and Societal Metrics of Impact in the ASHA Journals
Authors: Long Helen L. , Drown Lee , El Amin Mariam
Published: January 2023

Purpose:

This study examined the effect of open access (OA) status on scholarly and societal metrics of impact (citation counts and altmetric scores, respectively) across manuscripts published in the American Speech-Language-Hearing Association (ASHA) Journals.

Method:

Three thousand four hundred nineteen manuscripts published in four active ASHA Journals were grouped across three access statuses based on their availability to the public: Gold OA, Green OA, and Closed Access. Two linear mixed-effects models tested the effects of OA status on citation counts and altmetric scores of the manuscripts.

Results:

Both Green OA and Gold OA significantly predicted a 2.70 and 5.21 respective increase in citation counts compared with Closed Access manuscripts (
p
< .001). Gold OA was estimated to predict a 25.7-point significant increase in altmetric scores (
p
< .001), but Green OA was only marginally significant (
p
= .68) in predicting a 1.44 increase in altmetric scores relative to Closed Access manuscripts.

Discussion:

Communication sciences and disorders (CSD) research that is fully open receives more online attention and, overall, more scientific attention than research that is paywalled or available through Green OA methods. Additional research is needed to understand secondary variables affecting these and other scholarly and societal metrics of impact across studies in CSD. Ongoing support and incentives to reduce the inequities of OA publishing are critical for continued scientific advancement.

Open Science Form:

https://doi.org/10.23641/asha.21766919
Sampling visual SLAM with a wide‐angle camera for legged mobile robots
Authors: Fan Guangyu , Huang Jiaxin , Yang Dingyu , Rao Lei
Published: January 2023

Precise localisation and navigation are the two most important tasks for mobile robots. Visual simultaneous localisation and mapping (VSLAM) is useful in localisation systems of mobile robots. The wide‐angle camera has a broad field of vision and more abundant information on images, so it is widely used in mobile robots, including legged robots. However, wide‐angle cameras are more complicated than ordinary cameras in the design of visual localisation systems, and higher requirements and challenges are put forward for VSLAM technologies based on wide‐angle cameras. In order to resolve the problem of distortion in wide‐angle images and improve the accuracy of localisation, a sampling VSLAM based on a wide‐angle camera model for legged mobile robots is proposed. For the predictability of the periodic motion of a legged robot, in the method, the images are sampled periodically, image blocks with clear texture are selected and the image details are enhanced to extract the feature points on the image. Then, the feature points of the blocks are extracted and by using the feature points of the blocks in the images, the feature points on the images are extracted. Finally, the points on the incident light through the normalised plane are selected as the template points; the relationship between the template points and the images is established through the wide‐angle camera model, and the pixel coordinates of the template points in the images and the descriptors are calculated. Moreover, many experiments are conducted on the TUM datasets with a quadruped robot . The experimental results show that the trajectory error and translation error measured by the proposed method are reduced compared with the VINS‐MONO, ORB‐SLAM3 and Periodic SLAM systems.
A distributed decentralized cooperative control scheme for microgrids
Authors: Li Lang , Luo Zhaoxu , Tian Peng , Zhou Ke , Shen Shixun , Liu Yun , Zhang Chao
Published: January 2023

A hybrid series‐parallel microgrid structure and its distributed decentralized cooperative control strategy are introduced in this paper. In the hybrid series‐parallel microgrids, the distributed generators (DGs) are concatenated in parallel to form a paralleled‐connected generation (PCG) module. Further, the hybrid series‐parallel microgrids consist of multiple PCG modules in series. For the considered microgrids, a distributed decentralized cooperative control strategy is proposed. For DGs in the same PCG module, low‐bandwidth communications are applied to obtain convergence control of the system. Meanwhile, different PCG modules realize autonomous synchronization in a communication‐free manner. Thus, the proposed distributed decentralized cooperative control method is a low‐bandwidth communication approach. Moreover, it is immune to single‐point fault and communication failure. Finally, the feasibility of the proposed controller for the considered microgrids is verified by stability and simulations.
Small insulator target detection based on multi‐feature fusion
Authors: Tang Minan , Liang Kai , Qiu Jiandong
Published: January 2023

The proportion of insulators in aerial power patrol images is small and the background of overhead lines is complex, often leading to incomplete and inaccurate detection of insulators. Therefore, an algorithm for detecting insulator targets based on multi‐feature fusion is developed in this study. Firstly, a dynamic threshold oriented fast and rotated brief algorithm is proposed, which uses the bag‐of‐words dictionary model to determine local shape features of the image, applies gradient weighting to the global texture feature vector extracted by the histogram of oriented gradients algorithm and performs radial gradient transformations to get the improved HOG of features. Secondly, the feature vectors are fused serially, the learning machine is trained and the parameters of the support vector machine are optimized using the quantum particle swarm optimization algorithm. Finally, the target area is pre‐divided by the selective search algorithm, and the area is classified by the learning machine. The experimental results show that the proposed feature extraction method can describe the image details more accurately than the existing methods, and the average accuracy of the feature extraction classifier can reach 93.7%, which helps to overcome the incomplete detection problem of insulator detection at the aerial work site.
Aide à la détection de l’échange d’information entre étudiants dans les contrôles à distance
Authors: Burel Gilles , Ben Gaied Khawla , Ben Abdelkader Ramla , Gautier Roland
Published: January 2023

La situation sanitaire subie depuis mars 2020 a conduit à une utilisation massive des contrôles à distance, sous la forme des tests en ligne, de type QCM ou apparentés (questions à réponses numériques, graphiques, calculées, ...). Ces contrôles étant réalisés sans surveillance, il est tentant pour certains étudiants d’échanger des informations en cours de test. Cet échange d’information, lorsqu’il a lieu, laisse une empreinte sous la forme d’anomalies statistiques dans les réponses aux questions ainsi que dans l’horodatage. L’objectif de notre travail était de proposer et de tester des méthodes visant à détecter automatiquement ces anomalies, en vue d’attirer l’attention de l’enseignant sur les cas suspects. Dans notre domaine (EEA/STIC) le nombre limité d’étudiants (quelques dizaines) et de questions rend d’emblée inadaptés des modèles paramétriques complexes, tels que l’on peut en trouver dans la littérature, ces derniers étant conçus pour des tests à très grande échelle (avec des milliers de candidats) fournissant suffisamment de données pour ajuster le modèle. Nous décrivons la méthode développée, qui est bien adaptée à notre domaine (faible nombre d’étudiants et de questions), et nous l’illustrons à travers les résultats réels obtenus sur trois contrôles en ligne.
Effect of Cr addition and heat treatment on the physical properties of Fe-Al melt-spun ribbons
Authors: Messai Imad , Hamana Djamel , Belamri Zehira , Chernenko Volodymyr
Published: January 2023

Iron-based alloys with compositions close to Fe75Al25 (at.%) attract much attention due to their unique properties useful, e.g., for high-temperature or high damping engineering applications. Their mechanical, electron transport and magnetic properties strongly depend on the structural characteristics. In this paper we carried out a comparative study of the physical properties of the as spun ribbons Fe70Al30 and Fe70Al20Cr10 (at.%) alloys. The ribbons were produced using the melt spinning technique and were characterized by SEM, X-ray diffraction, differential scanning calorimetric, resistivity measurement and vibrating sample magnetometer. The addition of Cr to Fe70Al30 has a significant influence on atomic ordering, increases the electrical resistivity and a strong influence on the magnetic behavior.
Vorbereitung einer Lungentransplantation
Authors: Rasenberger Nicolaus
Published: January 2023

Bei Lungentransplantationen handelt es sich um Eingriffe mit einem hohen perioperativen Risiko. Aus diesem Grund benötigen die Vorbereitungen für die Anästhesie-Pflege sowie ATA viel Aufwand und Zeit. Im Folgenden wird die Organisation der anästhesiologischen Arbeitsplätze zur Lungentransplantation nach den Standards am LMU Klinikum geschildert.
Lebenslanges Lernen im Beruf
Authors: Welk Ina
Published: January 2023

Lebenslanges Lernen ist vor allem in Gesundheitsberufen wichtig, um für die rasanten Veränderungen und technischen Herausforderungen gut gerüstet zu sein. Doch welche Möglichkeiten der lebensbegleitenden Fort- und Weiterbildung gibt es und wie profitieren sowohl Arbeitgebende als auch Mitarbeitende davon? Ein Überblick.
Voraussetzungen einer Organspende
Authors: Lang Marika
Published: January 2023

Wie verläuft eine postmortale Organspende? Was ist bei der Organ- und Spendercharakterisierung zu beachten? Und wie ist das Prozedere beim Empfänger? Ein Überblick.
Repurposing of Drugs for Cardiometabolic Disorders: An Out and Out
Cumulation
Authors: Wasim Rufaida , Ansari Tarique Mahmood , Siddiqui Mohammed Haris , Ahsan Farogh , Shamim Arshiya , Singh Aditya , Shariq Mohammad , Anwar Aamir , Siddiqui Aquib Rehanullah , Parveen Saba
Published: January 2023

Cardiometabolic disorders (CMD) is a constellation of metabolic predisposing
factors for atherosclerosis such as insulin resistance (IR) or diabetes mellitus
(DM), systemic hypertension, central obesity, and dyslipidemia. Cardiometabolic
diseases (CMDs) continue to be the leading cause of mortality in both developed
and developing nations, accounting for over 32% of all fatalities
globally each year. Furthermore, dyslipidemia, angina, arrhythmia, heart
failure, myocardial infarction (MI), and diabetes mellitus are the major causes
of death, accounting for an estimated 19 million deaths in 2012. CVDs will kill
more than 23 million individuals each year by 2030. Nonetheless, new drug
development (NDD) in CMDs has been increasingly difficult in recent decades due
to increased costs and a lower success rate. Drug repositioning in CMDs looks
promising in this scenario for launching current medicines for new therapeutic
indications. Repositioning is an ancient method that dates back to the 1960s and
is mostly based on coincidental findings during medication trials. One
significant advantage of repositioning is that the drug’s safety profile
is well known, lowering the odds of failure owing to undesirable toxic effects.
Furthermore, repositioning takes less time and money than NDD. Given these
facts, pharmaceutical corporations are becoming more interested in medication
repositioning. In this follow-up, we discussed the notion of repositioning and
provided some examples of repositioned medications in cardiometabolic
disorders.
Hiatal hernia repair with transoral incisionless fundoplication versus Nissen fundoplication for gastroesophageal reflux disease: A retrospective study
Authors: Jaruvongvanich Veeravich K. , Matar Reem , Reisenauer Janani , Janu Peter , Mavrelis Peter , Ihde Glenn , Murray Michael , Singh Sneha , Kolb Jennifer , Nguyen Ninh T. , Thosani Nirav , Wilson Erik B. , Zarnegar Rasa , Chang Kenneth , Canto Marcia I. , Abu Dayyeh Barham K.
Published: January 2023

Background and study aims Concomitant hiatal hernia (HH) repair with transoral incisionless fundoplication (TIF) is a therapeutic option for patients with HH > 2 cm and gastroesophageal reflux disease (GERD). Data comparing this approach with laparoscopic Nissen fundoplication (LNF) are lacking. We performed an exploratory analysis to compare these two approaches' adverse events (AEs) and clinical outcomes.

Patients and methods This was a multicenter retrospective cohort study of HH repair followed by LNF versus HH repair followed by TIF in patients with GERD and moderate HH (2–5 cm). AEs were assessed using the Clavien-Dindo classification. Symptoms (heartburn/regurgitation, bloating, and dysphagia) were compared at 6 and 12 months.

Results A total of 125 patients with HH repair with TIF and 70 with HH repair with LNF were compared. There was no difference in rates of discontinuing or decreasing proton pump inhibitor use, dysphagia, esophagitis, disrupted wrap, and HH recurrence between the two groups (P > 0.05). The length of hospital stay (1 day vs. 2 days), 30-day readmission rate (0 vs. 4.3 %), early AE rate (0 vs. 18.6 %), and early serious AE rate (0 vs. 4.3 %) favored TIF (all P < 0.05). The rate of new or worse than baseline bloating was lower in the TIF group at 6 months (13.8 % vs. 30.0 %, P = 0.009).

Conclusions Concomitant HH repair with TIF is feasible and associated with lower early and serious AEs compared to LNF. Further comparative efficacy studies are warranted.
Field effect two-dimensional electron gases in modulation-doped InSb surface quantum wells
Authors: Bergeron E. Annelise , Sfigakis F. , Shi Y. , Nichols George , Klipstein P. C. , Elbaroudy A. , Walker Sean M. , Wasilewski Z. R. , Baugh J.
Published: January 2023

We report on transport characteristics of field effect two-dimensional electron gases (2DEGs) in surface indium antimonide quantum wells. The topmost 5 nm of the 30 nm wide quantum well is doped and shown to promote the formation of reliable, low resistance Ohmic contacts to surface InSb 2DEGs. High quality single-subband magnetotransport with clear quantized integer quantum Hall plateaus is observed to filling factor ν = 1 in magnetic fields of up to B = 18 T. We show that the electron density is gate-tunable, reproducible, and stable from pinch-off to 4 ×1011 cm−2, and peak mobilities exceed 24 000 cm2/V s. Large Rashba spin–orbit coefficients up to 110 meV ·Å are obtained through weak anti-localization measurements. An effective mass of 0.019me is determined from temperature-dependent magnetoresistance measurements, and a g-factor of 41 at a density of 3.6 ×1011 cm−2 is obtained from coincidence measurements in tilted magnetic fields. By comparing two heterostructures with and without a delta-doped layer beneath the quantum well, we find that the carrier density is stable with time when doping in the ternary Al0.1In0.9Sb barrier is not present. Finally, the effect of modulation doping on structural asymmetry between the two heterostructures is characterized.
Magnetic properties and cryogenic magnetocaloric effect in monoclinic RE8.66(BO3)2(B2O5)O8 (RE = Er, Tm) compounds
Authors: Liu Quanyi , Mo Zhaojun , Xie Huicai , Fu Qi , Shen Jun , Zhao Jinliang
Published: January 2023

Researchers in cryogenic magnetic refrigeration have never stopped pursuing magnetic refrigerants with lower ordering temperatures and larger magnetocaloric effects. Rare earth borates have been found to be potential cryogenic magnetocaloric materials due to their low phase transition temperatures and considerable magnetic entropy changes. Here, two rare earth borates RE8.66(BO3)2(B2O5)O8 (RE = Er, Tm) were successfully fabricated, and the crystallographic and magnetic parameters as well as cryogenic magnetocaloric effects were systematically evaluated. The compounds are deemed to crystalize in a monoclinic structure belonging to space group C2/m. They are both second-order phase transition materials without any long-range order above 2 K. These monoclinic rare earth borates, especially for Er8.66(BO3)2(B2O5)O8, show more considerable low-field magnetocaloric effects than rare earth orthoborates. For ΔH = 1 and 2 T, the values of −ΔSMmax are 5.1 and 11.2 J/(kg K) for Er8.66(BO3)2(B2O5)O8, 3.0 and 5.3 J/(kg K) for Tm8.66(BO3)2(B2O5)O8, respectively. Therefore, they are regarded as potential candidates for cryogenic magnetic refrigeration.
Experimental study of nonlinear states of oscillating water column in waves
Authors: Zhang Chongwei , Dai Jierao , Cui Lin , Ning Dezhi
Published: January 2023

Physical experiments are conducted in a large-scale wave flume to investigate the nonlinear states of an oscillating water column in waves. A four-state classification (sloshing, piston, freak, and trapping states) is proposed to characterize the free-surface behaviors in the cylindrical chamber. The error range of the linearized potential-flow theory for the description of the sloshing- and piston-state internal wave motion is evaluated. This study, for the first time, identifies the phenomenon of freak-state resonance, which features a steep surface hump with wave overturning or water jets in the cylindrical chamber. This special resonance is triggered by the second-order nonlinear component of the incident waves, which cannot be predicted by the analytical solution. The transverse waves observed in the trapping state cannot be analytically predicted, neither. The instantaneous free surface in the cylinder is reconstructed using the Delaunay-refinement algorithm to investigate the volume fluctuation of the water body in the cylinder. A detrending procedure is applied to decompose each volume fluctuation history into trend and oscillatory components. The analytical solution accurately describes the amplitude of the oscillatory component in the sloshing state but overpredicts that in the piston state. The relationship between histories of the volume fluctuation of the internal water body and the measured wave elevation is identified in sloshing and piston states.
Internal conversion rates from the extended thawed Gaussian approximation: Theory and validation
Authors: Wenzel Michael , Mitric Roland
Published: January 2023

The theoretical prediction of the rates of nonradiative processes in molecules is fundamental in assessing their emissive properties. In this context, global harmonic models have been widely used to simulate vibronic spectra as well as internal conversion rates and to predict photoluminescence quantum yields. However, these simplified models suffer from the limitations that are inherent to the harmonic approximation and can have a severe effect on the calculated internal conversion rates. Therefore, the development of more accurate semiclassical methods is highly desirable. Here, we introduce a procedure for the calculation of nonradiative rates in the framework of the time-dependent semi-classical Extended Thawed Gaussian Approximation (ETGA). We systematically investigate the performance of the ETGA method by comparing it to the adiabatic and vertical harmonic methods, which belong to the class of widely used global harmonic models. Its performance is tested in potentials that cannot be treated adequately by global harmonic models, beginning with Morse potentials of varying anharmonicity followed by a double well potential. The calculated radiative and nonradiative internal conversion rates are compared to reference values based on exact quantum dynamics. We find that the ETGA has the capability to predict internal conversion rates in anharmonic systems with an appreciable energy gap, whereas the global harmonic models prove to be insufficient.
The multi-bandgap of local effect phononic crystal
Authors: Dong Yake , Ye Xiusong , Chen Guangyu , Nan Min
Published: January 2023

A design method of a phononic crystal structure with a local effect is introduced, and the mechanism and influencing factors (elastic modulus, density, local layer thickness) of the bandgap are analyzed. The finite element method is used to calculate the eigenfrequency. The first bandgap width accounts for more than 98% of the frequency below 20 000 Hz. Two kinds of materials with different wave velocities are arranged periodically to form a two-dimensional local effect structure. Due to the influence of the local effect, when the elastic wave propagates in the local layer, the wave propagation will be restrained, and the eigenfrequency spectrum presents a series of discrete energy levels. The material parameters and structural parameters of the transmission layer have a great influence on the bandgap. The first bandgap is an ultra-wide low frequency bandgap, and the bandgap frequency ranges from 238 to 18857 Hz. This periodic structure with the local effect has great potential application value in noise and vibration suppression.
Lie algebraic Carroll/Galilei duality
Authors: Figueroa-O’Farrill José
Published: January 2023

We characterize Lie groups with bi-invariant bargmannian, galilean, or carrollian structures. Localizing at the identity, we show that Lie algebras with ad-invariant bargmannian, carrollian, or galilean structures are actually determined by the same data: a metric Lie algebra with a skew-symmetric derivation. This is the same data defining a one-dimensional double extension of the metric Lie algebra and, indeed, bargmannian Lie algebras coincide with such double extensions, containing carrollian Lie algebras as an ideal and projecting to galilean Lie algebras. This sets up a canonical correspondence between carrollian and galilean Lie algebras mediated by bargmannian Lie algebras. This reformulation allows us to use the structure theory of metric Lie algebras to give a list of bargmannian, carrollian, and galilean Lie algebras in the positive-semidefinite case. We also characterize Lie groups admitting a bi-invariant (ambient) leibnizian structure. Leibnizian Lie algebras extend the class of bargmannian Lie algebras and also set up a non-canonical correspondence between carrollian and galilean Lie algebras.
Fast prediction and uncertainty analysis of film cooling with a semi-sphere vortex generator using artificial neural network
Authors: Wang Yaning , Qian Shuyang , Sun Yangqing , Wang Wen , Cui Jiahuan
Published: January 2023

The advancement of aircraft engines relies heavily on film cooling technology. To enhance the film cooling efficiency in high-pressure turbines, many passive flow control methods have been explored. Downstream of the cooling hole, a semi-sphere vortex generator (SVG) decreases the lateral dispersion of the coolant and increases the efficiency of film cooling. To better understand the influence and uncertainty of SVG parameters such as the compound angle, size, and location, a supervised learning-based artificial neural network model is developed to identify the nonlinear mapping between the input parameters and the horizontal-averaged film cooling efficiency. Training data are generated by computational fluid dynamics. The model is quite accurate and stable after sufficient testing and validation. Through Monte Carlo simulations, the framework is used to analyze the thermal and flow characteristics of the film cooling efficiency. The radius of the SVG dominates the film cooling effectiveness at low blowing ratios, whereas at comparatively large blowing ratios, the angular placement of the SVG downstream of the cooling hole is the most important element. The angular position of the SVG has a much stronger impact than the distance at both low and high blowing ratios between the cooling hole and the SVG.
Investigation of parameters and porous plug enhanced enrichment with field-amplified sample stacking in microchip
Authors: Yuan Shuai , Zhou Mingyong , Liu Xijiang , Li Qiang , Drummer Dietmar , Jiang Bingyan
Published: January 2023

With the recent great interest in microfluidic devices, a better understanding of preconcentration technology has become increasingly important. Herein, concentration enrichment of charged samples is achieved by using field-amplified sample stacking (FASS) technology in the microchannel. This paper aims to develop a fundamental understanding of FASS and to propose a method to enhance the enrichment quality of FASS. First, numerical investigations are carried out to systematically study the effects of various parameters including the applied voltage, the charged properties of the sample, the buffer concentration ratio, the injection length, and the microchannel width on FASS enrichment performance. The results show that reducing the width of the microchannel is an effective way to improve the enrichment quality. The maximum enrichment ratio can be improved by 67.35% by reducing the width of the microchannel to less than 10 μm due to the inhibition of background buffer diffusion. Second, to improve traditional FASS performance, a high-conductance gradient boundary is established by photoinitiating fabrication of a porous plug at the enriched interface position. This structure provides a region that reduces the local size of the internal channel to less than 5 μm and has high flow resistance, but allows the electromigration of the charged analyte. Experimental results show that an electropherogram signal increases by a maximum factor of 329 in electrophoretic enrichment of fluorescein–Na with 5 × 10−7 M initial concentrations, and the enrichment quality of traditional FASS is greatly improved.