bluuebunny/crossref_metadata_2025_split huggingface dataset:
Dynamics of Moiré Exciton in a Twisted MoSe2/WSe2 Heterobilayer
Authors: Kim Heejun , Aino Kumpei , Shinokita Keisuke , Zhang Wenjin , Watanabe Kenji , Taniguchi Takashi , Matsuda Kazunari 
Published: April 2023

AbstractMoiré potential by stacking two monolayers with slightly different lattice mismatches acts as periodic quantum confinement for optically generated excitons and provides spatially ordered 0D quantum systems. Fundamental studies on intrinsic optical phenomena in the moiré exciton are conducted; however, the excitonic states and, particularly, the dynamic properties of moiré excitons are underexplored. In this study, the unrevealed structures of moiré exciton states and their intriguing dynamics in twisted MoSe2/WSe2 heterobilayers are experimentally investigated by photoluminescence spectroscopy. Phonon‐mediated momentum dark exciton state above bright exciton state with splitting energy of ≈8 meV inside moiré potential is observed. Additionally, it is demonstrated that the dynamics of moiré excitons are determined by the radiative recombination process of bright moiré excitons at low temperatures (<20 K) and phonon‐assisted non‐radiative processes from the lowest bright to dark moiré exciton state at high temperatures (>30 K). Furthermore, additional peaks at the high‐energy side under high‐power excitation conditions are observed, which indicates emission from the triplet bright moiré exciton state with a longer decay time of 700 ns. Experimental evidence of the bright and dark exciton states within the moiré potential might provide novel platforms for quantum optics applications using moiré superlattices.
Adhesive Composite Hydrogel Patch Based on a Polyaspartamide Derivative to Treat Atopic Dermatitis
Authors: Park Nuri , Kim Ye Eun , Kim Ji‐Heung , Kim Jaeyun 
Published: April 2023

AbstractTransdermal patches offer significant advantages as a drug delivery system due to their ability to bypass first‐pass metabolism, sustain drug release, and provide predetermined dose and application area. However, to be effective, transdermal patches must have optimal adhesion and drug‐loading capacity. In this study, an adhesive composite hydrogel patch consisting of poly(N‐2,3‐dihydroxypropyl aspartamide) (PDHPA), a polyaspartamide derivative, and mesoporous silica nanoparticles (MSNs) are developed. To prepare the hydrogel, boric acid (BA) is utilized as a crosslinker to form reversible bonds between multiple hydroxyl groups in the polymer and BA. The PDHPA‐BA hydrogel exhibits dynamic reversibility, self‐healing properties, and a pH‐dependent sol–gel transition. The addition of MSNs with abundant hydroxyl groups improves the mechanical performance, adhesion properties, and self‐healing rate of the PDHPA‐BA hydrogel. In addition, MSNs enable the loading of hydrophobic drugs, such as dexamethasone (Dex), onto the hydrogel. Using the Dex‐loaded adhesive composite hydrogel as a transdermal patch, the severity of atopic dermatitis in a mouse model indicated by suppression of dermatitis score, epidermal thickness, number of mast cells, and serum interleukin‐4 levels is successfully reduced. These results suggest that the composite hydrogel patch is a highly promising transdermal drug delivery system for effectively treating inflammatory skin diseases.
Spin‐Momentum Locking and Ultrafast Spin‐Charge Conversion in Ultrathin Epitaxial Bi1 − xSbx Topological Insulator
Authors: Rongione E. , Baringthon L. , She D. , Patriarche G. , Lebrun R. , Lemaître A. , Morassi M. , Reyren N. , Mičica M. , Mangeney J. , Tignon J. , Bertran F. , Dhillon S. , Le Févre P. , Jaffrès H. , George J.‐M. 
Published: April 2023

AbstractThe helicity of three‐dimensional (3D) topological insulator surface states has drawn significant attention in spintronics owing to spin‐momentum locking where the carriers' spin is oriented perpendicular to their momentum. This property can provide an efficient method to convert charge currents into spin currents, and vice‐versa, through the Rashba–Edelstein effect. However, experimental signatures of these surface states to the spin‐charge conversion are extremely difficult to disentangle from bulk state contributions. Here, spin‐ and angle‐resolved photo‐emission spectroscopy, and time‐resolved THz emission spectroscopy are combined to categorically demonstrate that spin‐charge conversion arises mainly from the surface state in Bi1 − xSbx ultrathin films, down to few nanometers where confinement effects emerge. This large conversion efficiency is correlated, typically at the level of the bulk spin Hall effect from heavy metals, to the complex Fermi surface obtained from theoretical calculations of the inverse Rashba–Edelstein response. Both surface state robustness and sizeable conversion efficiency in epitaxial Bi1 − xSbx thin films bring new perspectives for ultra‐low power magnetic random‐access memories and broadband THz generation.
Somatic symptoms, pain, catastrophizing and the association with disability among children with heritable connective tissue disorders
Authors: de Koning Lisanne E. , Warnink‐Kavelaars Jessica , van Rossum Marion A. , Bosman Diederik , Menke Leonie A. , Malfait Fransiska , de Boer Rosa , Oosterlaan Jaap , Engelbert Raoul H. H. , Rombaut Lies ,   And the Pediatric Heritable Connective Tissue Disorders Study Group
Published: April 2023

AbstractThe aim of the present study was to investigate the nature and prevalence of nonspecific somatic symptoms, pain and catastrophizing in children with Heritable Connective Tissue Disorders (HCTD), and to determine their association with disability. This observational, multicenter study included 127 children, aged 4–18 years, with Marfan syndrome (MFS) (59%), Loeys‐Dietz syndrome (LDS) (8%), Ehlers‐Danlos syndromes (EDS) (12%) and hypermobile Ehlers‐Danlos syndrome (hEDS) (23%). The assessments included the Children's Somatization Inventory or parent proxy (CSI, PCSI), pain visual‐analogue scale (VAS), SUPERKIDZ body diagram, Pain Catastrophizing Scale Child or parent proxy (PCS‐C, PCS‐P) and Childhood Health Assessment Questionnaire (CHAQ‐30). Data from children aged ≥8 years were compared to normative data. In children ≥ 8 years (n = 90), pain was present in 59%, with a median of 4 (IQR = 3–9) pain areas. Compared to normative data, the HCTD group reported significantly higher on the CSI (p ≤ 0.001, d = 0.85), VAS pain intensity (p ≤ 0.001, d = 1.22) and CHAQ‐30 (p ≤ 0.001, d = 1.16) and lower on the PCS‐C (p = 0.017, d = −0.82) and PCS‐P (p ≤ 0.001, d = −0.49). The intensity of nonspecific somatic symptoms and pain explained 45% of the variance in disability (r2 = 0.45 F(2,48) = 19.70, p ≤ 0.001). In children ≤ 7 years (n = 37),   pain was present in 35% with a median of 5(IQR = 1–13) pain areas. The mean(SD) VAS scores for pain intensity was 1.5(2.9). Functional disability was moderately correlated to the number of pain areas (r = 0.56, p ≤ 0.001), intensity of nonspecific somatic symptoms (r = 0.63, p ≤ 0.001) and pain (r = 0.83, p ≤ 0.001). In conclusion, this study supports the need for comprehensive assessment of nonspecific somatic symptoms, pain, and disability in children with HCTD to allow tailored treatment.
Construction of Spiro[4.5]decanes via Annulations of Azadienes with Nazarov Reagent and DFT Studies
Authors: Wang Wenyang , Wang Ying , Zhao Xiaowei , Yuan Wenjiao , Zhang Lei , Meng Xiangtai 
Published: April 2023

AbstractA NaH‐promoted domino reaction between azadiene bearing an indene moiety with Nazarov reagent was developed. A variety of spiro[4.5]decane derivatives were obtained via [4+2] cycloaddition with good yields and high diastereoselectivity. The domino strategy benefited from mild reaction conditions and very broad substrate scope. Furthermore, a gram‐scale experiment and a transformation of the product were carried out. Lastly, density functional theory (DFT) calculations have been performed to verify the proposed reaction mechanism and analyze the observed diastereoselectivity.
Post‐Translational Modifications of the DUX4 Protein Impact Toxic Function in FSHD Cell Models
Authors: Knox Renatta N. , Eidahl Jocelyn O. , Wallace Lindsay M. , Choudury Sarah G. , Rashnonejad Afrooz , Daman Katelyn , Guggenbiller Matthew J. , Saad Nizar Y. , Hoover Michael E. , Zhang Liwen , Branson Owen E. , Emerson Charles P. , Freitas Michael A. , Harper Scott Q. 
Published: April 2023

ObjectiveFacioscapulohumeral muscular dystrophy (FSHD) is caused by abnormal de‐repression of the myotoxic transcription factor DUX4. Although the transcriptional targets of DUX4 are known, the regulation of DUX4 protein and the molecular consequences of this regulation are unclear. Here, we used in vitro models of FSHD to identify and characterize DUX4 post‐translational modifications (PTMs) and their impact on the toxic function of DUX4.MethodsWe immunoprecipitated DUX4 protein and performed mass spectrometry to identify PTMs. We then characterized DUX4 PTMs and potential enzyme modifiers using mutagenesis, proteomics, and biochemical assays in HEK293 and human myoblast cell lines.ResultsWe identified 17 DUX4 amino acids with PTMs, and generated 55 DUX4 mutants designed to prevent or mimic PTMs. Five mutants protected cells against DUX4‐mediated toxicity and reduced the ability of DUX4 to transactivate FSHD biomarkers. These mutagenesis results suggested that DUX4 toxicity could be counteracted by serine/threonine phosphorylation and/or inhibition of arginine methylation. We therefore sought to identify modifying enzymes that could play a role in regulating DUX4 PTMs. We found several enzymes capable of modifying DUX4 protein in vitro, and confirmed that protein kinase A (PKA) and protein arginine methyltransferase (PRMT1) interact with DUX4.InterpretationThese results support that DUX4 is regulated by PTMs and set a foundation for developing FSHD drug screens based mechanistically on DUX4 PTMs and modifying enzymes. ANN NEUROL 2023;94:398–413
Palladium‐Catalyzed Enantio‐ and Regioselective Ring‐Opening Hydrophosphinylation of Methylenecyclopropanes
Authors: Zhou Jian , Meng Ling , Lin Shujuan , Cai Baohua , Wang Jun (Joelle) 
Published: April 2023

AbstractTransition metal‐catalyzed hydrofunctionalization of methylenecyclopropanes (MCPs) has presented a considerable challenge due to the difficult manipulation of regioselectivity and complicated reaction patterns. Herein, we report a straightforward Pd‐catalyzed ring‐opening hydrophosphinylation reaction of MCPs via highly selective C−C bond cleavage. This method allows for rapid and efficient access to a wide range of chiral allylic phosphine oxides in good yields and high enantioselectivities. Additionally, density functional theory (DFT) calculations were performed to elucidate the reaction mechanism and the origin of enantioselectivity.
Processing and characterizing repulping reject of liquid package board
Authors: Jönkkäri Ilari , Mäki‐Tulokas Sandra , Niini Arvo , Saarimäki Eetta , Sarlin Essi 
Published: April 2023

AbstractLiquid package board (LPB) packages typically have the smallest global warming potential compared to other package solutions, but recycling of the integrated plastic and aluminum fractions of the packages is still limited. In the fiber recycling process the plastic and aluminum fractions with some residual fibers are concentrated to the repulping reject (Polyal). This study investigates composition and properties of repulping rejects from recycling of separately collected LPB packages. The rejects were modified in different ways, hot pressed, grinded and finally compounded with a twin screw extruder. Compositions of the compounds were characterized with Differential Scanning Calorimetry (DSC) and Thermogravimetric Analysis (TGA) and their properties were studied with tensile testing and melt flow rate (MFR) measurements. All studied compounds had relatively good processability and mechanical properties. Properties of compounds were improved by extraction of residual fibers and melt filtering of polyethylene terephthalate (PET) flakes. Especially melt filtering offered a significant improvement in strain at break from 11% to 33%. It was also found that high density polyethylene (HDPE) should be extracted from the reject and recycled separately since the extraction is relatively easy, does not cause drastic changes in the compound properties and recycled HDPE has more potential applications than the Polyal compounds.
Does business commitment to sustainability increase job seekers' perceptions of organisational attractiveness? The role of organisational prestige and cultural masculinity
Authors: Carballo‐Penela Adolfo , Ruzo‐Sanmartín Emilio , Sousa Carlos M. P. 
Published: April 2023

AbstractThis study analyses how recruiting messages showing commitment to sustainability influence job seekers' perceptions of organisational attractiveness. To address a call from prior research, we propose that organisational prestige mediates the positive relationship between commitment to sustainability and attractiveness. As job seekers from different cultures can have different responses to companies' information, the moderating role of the masculinity dimension of national culture is also examined. In a study of 412 job seekers from four different countries, experimental manipulation was used to assess perceptions of different recruiting messages containing information on business sustainability. Results support the proposed relationships. Theoretical and practical contributions include the integration of signalling and social identity theories to considering a wide variety of mechanisms which show how individuals are attracted to organisations and useful information for helping managers to recruit young talent. Using a sample of young part‐time job seekers is a limitation of this work.
Polysulfide Adsorption by Iron Oxide and Chromium Oxide: Effects on Cycle Life and Redox Kinetics of Lithium‐Sulfur Cells
Authors: Hirt Sebastian Daniel , Schleich Sabrina , Sous Pascal , Wennig Sebastian , Oberschachtsiek Bernd , Hoster Harry Ernst 
Published: April 2023

AbstractLithium‐sulfur batteries have the potential to replace lithium‐ion batteries in the future due to their high theoretical capacity and energy density but suffer from low cycling stability caused by the polysulfide shuttle. This work demonstrates a reduction of the polysulfide shuttle and increased cycling stability by using iron oxide and chromium oxide as additives for a simply fabricated lithium sulfide cathode. Adsorption isotherms were recorded, and monolayer adsorption capacities were determined for a better understanding of the interactions between transition metal oxides and polysulfides. A significant reduction of the shuttle mechanism can be deduced from the cyclization experiments. Similarly, the catalytic influence of chromium oxide and iron oxide on the oxidation could be shown by cyclic voltammetry.
NEW TYPE OF COMPOSITE ARCH ELEMENT USING COMPOSITE DOWELS: APPLICATION IN RAILWAY NETWORK ARCH BRIDGE
Authors: Sęk R. , Pilujski B. , Sobala D. , Lorenc W. 
Published: April 2023

AbstractThis paper presents a new type of composite element using composite dowels that was developed for the purposes of the railway bridge over the Vistula River in Krakow, Poland. The structure is the world's first arch bridge using cold‐bent HD rolled sections; hence the idea of a new type of composite connection between arch and tie is new as well, thus a new type of composite arch emerges. The concept, design and construction experience are presented herein.
VARIABLE STIFFNESS REDUCTION FACTOR FOR STABILITY DESIGN OF STEEL‐CONCRETE COMPOSITE COLUMNS
Authors: Denavit Mark D. 
Published: April 2023

AbstractIn United States practice, the strength of composite columns is assessed with available strengths that are computed considering member length effects. This approach has advantages; however, developing axial compression‐bending moment interaction diagrams that account for member length effects is not a straightforward task. Current methods result in unconservative error for highly slender members with large bending moments. While it is theoretically possible to develop more accurate interaction diagrams, a simpler approach, and one which more directly addresses the cause of the unconservative error, is to improve the accuracy of the stiffness used in the elastic analyses to determine required strengths. In this work, new recommendations are developed for this stiffness for steel‐concrete composite columns. The recommended stiffness is a function of required axial compression and bending moment, which increases accuracy and enables improved available strength calculations, resulting in more efficient designs.
BEHAVIOUR AND DESIGN OF HIGH‐PERFORMANCE STEEL AND STEEL‐CONCRETE COMPOSITE STRUCTURES
Authors: Li D. , Uy B. , Huang Z. , Khan M. 
Published: April 2023

AbstractOwing to the significant benefits, an increasing popularity to adopt the high‐strength materials in the construction industry was witnessed over the recent years. With it comes a series of studies that investigated the mechanical performance of high‐strength steel components, which aimed to encourage a more widespread utilisation in engineering practice. Many of the previous research relating to high‐strength steel/composite structures have been focused on hot‐rolled and cold‐formed sections, whereas applications have been focused on thick and fabricated components in mostly high‐rise and heavily loaded structures. Therefore, a research program funded by the Australian Research Council was initiated in 2018 and comprehensive experimental and numerical studies were performed over the past three years. This paper summarises the major findings on high‐strength bolts, as well as fabricated high‐ and ultra‐high‐strength steel/composite structural members.
LOAD TRANSFER FROM HOLLOWCORE SLABS TO DELTABEAM® SLIM FLOOR BEAMS IN CASE OF A FIRE
Authors: Beckmann Oliver , Cyllok Michael 
Published: April 2023

AbstractThis paper presents the background, results and conclusions of a series of fire tests with DELTABEAM® composite beams supporting prestressed hollowcore slabs (HCS) concerning the shifted direct support in fire situation. When designing a slab system consisting of DELTABEAM® and HCS in fire situation, the current European design codes and product approvals for both products do not cover the special issues “indirect / shifted direct” and “flexible” support that arise from combining beams and HCS. A test program of single HCS unit shear tests and system fire tests has been carried out to assess these issues. The presented paper will give an overview of the test program and a detailed look at the shifted direct support situation for load transfer from the slab to the beam.
NUMERICAL ANALYSIS OF LOAD‐BEARING FIRE TEST FOR REINFORCED CONCRETE SLABS
Authors: Kimura K. , Hirashima T. , Ozaki F. , Yoshida T. , Suzuki J. 
Published: April 2023

AbstractA numerical analysis is conducted for the load‐bearing fire test of composite flooring systems composed of flat RC slabs and unprotected beams (beams with no fire protection covering), and the test results and numerical analysis results are compared. The main aim of the numerical analysis is to verify the accuracy of the numerical analysis approach as well as to analyse the stress distribution within the composite floor when the membrane functions as intended, the data for which are difficult to obtain from the load‐bearing fire test.
INNOVATIVE COMPOSITE STRUCTURAL SYSTEMS FOR MODULAR TALL BUILDINGS
Authors: Thai H.T. 
Published: April 2023

AbstractModular or offsite construction is believed to shape the future of the construction industry as it possesses significant benefits over traditional onsite construction methods. However, most of its application are limited to steel or concrete buildings. Although steel‐concrete composite structural system has many merits over the steel and concrete systems, its application in modular buildings is very limited. This paper explores recent developments of composite systems for modular high‐rise buildings. They include modular units for resisting vertical gravity loads and lateral structural systems for resisting horizontal forces from wind and earthquake loadings and progressive collapse due to accidental loads such as fire, explosions and impact. Various inter‐module joining methods developed in the literature will also be reviewed. Finally, a case study of the most efficient connection is presented to explore its applicability to high‐rise modular buildings.
STRENGTHENING OF ANCHOR CHANNELS ON THE CONCRETE SURFACE
Authors: Petrasch Michael C. , Hofmann Jan 
Published: April 2023

AbstractFor the installation of curtain wall systems, the positions of anchor channels gradually move closer to the edge of the concrete slabs. But close to the edge of the slab, conventional supplementary reinforcements have problems to redistribute the loads to the reinforcement due to the short bond length that is available after concrete edge failure occurred. Therefore, tests have been conducted to investigate the behaviour of anchors channels, close to the edge. To achieve this, a strengthening system on the surface of the concrete with post installed fasteners was developed. First results indicate a high potential for strengthening the channels close to the edge under shear load. With these test results numerical simulations with Atena Science were performed and, after its calibration, the model was used for further investigation.
STUDIES ON STEEL‐TO‐CONCRETE JOINTS WITH CONCENTRATED LOADING CONDITIONS
Authors: Ziwes Maximilian , Ruopp Jakob , Kuhlmann Ulrike 
Published: April 2023

AbstractIn mixed buildings of steel and concrete an economical design depends on intelligent solutions for steel‐to‐concrete joints. The design and verification of steel‐to‐concrete joints is challenging, as the structural behaviour and the properties of different materials have to be considered. Large forces often have to be transferred in localized areas, e.g. bridge bearings, and various failure modes of steel and concrete may occur in the joints due to load concentrations. An imposed load preventing uplift and a well‐placed reinforcement can strengthen these joints decisively. In this contribution, experimental and numerical investigations and recent approaches for the design of steel‐to‐concrete joints are presented in order to extend and harmonise current rules leading to new chances of optimisation.
EXPERIMENTAL INVESTIGATION OF INTERIOR AND EXTERIOR STEEL‐CONCRETE COMPOSITE NPS® BEAM‐COLUMN JOINTS
Authors: Albright J. Ann , Argentoni Alessio , Calvi Paolo M. 
Published: April 2023

AbstractThis paper presents the results of an experimental program involving a series of five full scale NPS® (three interior and two exterior) and two moderately ductile reinforced concrete (one interior and one exterior) beam‐column joints, designed per Eurocode requirements. The NPS® System utilizes steel wrapped reinforced concrete columns and composite steel truss concrete (CSTC) beams reinforced with steel truss elements made with bottom plates to double as partial formwork. The specimens were tested under quasi‐static reversed cyclic horizontal loading, with a constant axial load applied to the column. The variables considered were the level of shear reinforcement provided within the joint panel zone and the presence/absence of additional shear reinforcement in the beam end‐regions.