bluuebunny/crossref_metadata_2025_split huggingface dataset:
Ti3C2Tx MXene‐Assisted CuBO2 Hole Transport Layer for High‐Performance Ultraviolet Photodetectors
Authors: Wang Yabing , Cen Baofen , Zhang Hongrong , Zhang Ziling , Wang Tengfei , Kong Pengfei , Li Qinghong , Liu Kaixiang , Zhang Jing , Luo Shengyun , Luo Guangcan 
Published: November 2023

AbstractThe efficient separation and extraction of holes can be attributed to the favorable properties possessed by the hole transport layer (HTL). Herein, a novel solution‐processable hybrid HTL based on CuBO2 and Ti3C2Tx MXene (CuBO2@MXene) is developed to enhance the performance of ultraviolet photodetectors (UV PDs). By optimizing the ratio of Ti3C2Tx MXene to CuBO2, the optimized responsivity and detectivity of the UV PDs based on the composite HTL have achieved 184 mA W−1 and 2.88 × 1013 cm Hz1/2 W−1 in self‐powered mode, respectively, and even up to 3.25 × 104 mA W−1 at −1.5 V. This significant improvement in device performance can be attributed to the interlaced architecture of CuBO2@MXene, which ameliorates hole mobility and charge extraction capability while reducing the trap state density of the HTL. The built‐in electric field of the TiO2/CuBO2 heterojunction is strengthened by the incorporation of Ti3C2Tx MXene, thereby significantly reinforcing the photovoltaic effect. Moreover, the lower thermal conductivity of CuBO2@MXene suppresses its pyroelectric effect, weakening the blocking effect of the thermoelectric potential on hole transport and ultimately leading to a remarkable boost in the output current. These results indicate the promising potential of the hybrid CuBO2@MXene HTL for constructing high‐performance optoelectronic devices.
Design of Highly Conductive Leather Based on Zirconium Ion Coordination for Health Protection in Severe Harsh Conditions
Authors: Feng Jianyan , Wang Peng , Bai Yang , Chen Xin , Li Ting , Luo Xiaomin , Zhang Peng , Wang Xuechuan 
Published: November 2023

AbstractFlexible electric heaters with softness, comfort and heating performance have application prospects in the fields of life and health, medical security and so on. In this study, by taking advantage of the soft and comfortable properties of leather itself, collagen fibers and carbon nanotubes (CNTs) are composited through zirconium ion (Zr4+) coordination and complexation. The composition, microstructure and Joule heating performance of the prepared flexible conductive leather (CNTs@Zr@OTL) are investigated in detail. The characterisation results prove the (Zr4+) coordination effect and the successful preparation of CNTs@Zr@OTL. At the same time, it has a resistance of about 250 Ω, a shrinkage temperature (Ts) of about 75°C, mechanical property of about 8 MPa, 60 h strong biodegradability and Joule heating of about 65°C under 15 V DC voltage. The obtained product can be further designed as a flexible Joule heating heater (Jhh) with softness, comfort as well as conductivity, and excellent Joule heating performance, and its practical application effect in heating wrists, fingers, joints and car seats is explored, as well as the heating effect under the actual movement of human body such as squatting, sitting and walking. This work provides an idea and method for the intelligent interaction of flexible heaters.
90% Yield Production of Spiropyran Covalently Grafted MXene‐Based RRAM Devices for Optoelectronic Dual‐Response Switching
Authors: Zhao Kejia , Liu Jiaxuan , Wang Xinzhu , Che Qiang , Zhang Bin , He Haidong , Wang Kexin , Chen Yu 
Published: November 2023

AbstractOver the past decade, great efforts have been devoted to both intellectual property protection and information security protection. As a promising electroactive material, MXene is covalently or non‐covalently functionalized with organic species/polymers to produce a large amount of novel functional materials for biomedicine, optoelectronics, and energy storage. By using spiropyran covalently functionalized MXene (MXene‐SP) as an active material, an optoelectronic dual‐response resistive random access memory (RRAM) device is successfully fabricated. Upon UV illumination, the active layer is changed from MXene‐SP (SP: ring‐closed spiropyran form) observed under the illumination of blue light to MXene‐MC (MC: ring‐opened merocyanine form) due to photo‐induced “close‐to‐open” isomerization. The as‐fabricated ITO/MXene‐SP/ITO device exhibits typical nonvolatile optoelectronic dual‐response RRAM performance, with a production yield exceeding 90%. The achieved switch‐on/off voltages are −1.25/2.07 V under the illumination of blue light and −0.58/0.91 V under UV illumination. The switching bias window (Δ|VON − VOFF|) and the ON/OFF current ratio of MXene‐MC are 44.9% and 14.7% of these of MXene‐SP, respectively. By utilizing the window difference between the RRAM performance achieved under the illumination of different lights, one can easily encrypt the quick response code.
Sequential [3+2] and [4+4] Annulation of Diynone and o‐Hydroxyaryl Azomethine Ylide: Construction of Dihydropyrrole Fused Eight‐Membered Ring Scaffold
Authors: Shen Jie , Xing Yu , Fu Lidong , Li Yanze , Cui Lei , Zhou Zijun , Li Chunju , Li Jian 
Published: November 2023

AbstractWe developed a cascade reaction of diynone and o‐hydroxy aromatic aldimine under mild conditions. This protocol is proposed to proceed through sequential [3+2]/[4+4] cycloaddition and proton transfer processes, thus providing an efficient way for the synthesis of a variety of dihydropyrrole fused eight‐membered ring scaffolds.
Intergroup encounters in pair‐living primates: Comparative analysis and a case study of pair‐living and monogamous owl monkeys (Aotus azarae) of Argentina
Authors: Gussone Leonie , García de la Chica Alba , Fernandez‐Duque Eduardo 
Published: November 2023

AbstractThe function of intergroup encounters (IGEs) may differ substantially among species of different group sizes and social organizations. Research in group‐living primates has shown that the behavioral responses during IGEs can vary widely from affiliative to neutral or aggressive interactions; still, little is known about IGEs in pair‐living taxa. We conducted a systematic literature review to find relevant studies on the functions of IGEs in pair‐living nonhuman primates that could inform analyses of IGE data (n = 242 IGEs, 21 groups and 10 solitary individuals, 1997−2020) from wild owl monkeys, a pair‐living, monogamous primate with extensive biparental care. We identified 1315 studies published between 1965 and 2021; only 13 of them (n = 10 species) contained raw data on the number of IGEs. Our review of those studies showed that IGEs are common, but highly variable in their nature and characteristics in pair‐living primates. To examine the non‐mutually exclusive hypotheses of resource‐, and mate defense, and infanticide avoidance we analyzed data from the Owl Monkey Project 27‐year long database to build first an a priori model set. To incorporate prior knowledge from the literature review, we conducted our analyses as a consecutive series of binomial logistic regressions. All IGEs including all biologically relevant parameters (N = 156) were codified into three different behavioral categories (Reaction, Agonism, and Physical Aggression). The analysis showed that owl monkeys regularly engaged in IGEs, most of which were agonistic. They showed more reaction when infants were present, but reactions were less physically aggressive when infants and pregnant females were involved. Overall, our results lend more support for the infant and mate defense hypotheses than they do for the resource defense one.
A Homochiral Fulgide Organic Ferroelectric Crystal with Photoinduced Molecular Orbital Breaking
Authors: Du Ye , Liao Wei‐Qiang , Li Yibao , Huang Chao‐Ran , Gan Tian , Chen Xiao‐Gang , Lv Hui‐Peng , Song Xian‐Jiang , Xiong Ren‐Gen , Wang Zhong‐Xia 
Published: November 2023

AbstractThermally triggered spatial symmetry breaking in traditional ferroelectrics has been extensively studied for manipulation of the ferroelectricity. However, photoinduced molecular orbital breaking, which is promising for optical control of ferroelectric polarization, has been rarely explored. Herein, for the first time, we synthesized a homochiral fulgide organic ferroelectric crystal (E)‐(R)‐3‐methyl‐3‐cyclohexylidene‐4‐(diphenylmethylene)dihydro‐2,5‐furandione (1), which exhibits both ferroelectricity and photoisomerization. Significantly, 1 shows a photoinduced reversible change in its molecular orbitals from the 3 π molecular orbitals in the open‐ring isomer to 2 π and 1 σ molecular orbitals in the closed‐ring isomer, which enables reversible ferroelectric domain switching by optical manipulation. To our knowledge, this is the first report revealing the manipulation of ferroelectric polarization in homochiral ferroelectric crystal by photoinduced breaking of molecular orbitals. This finding sheds light on the exploration of molecular orbital breaking in ferroelectrics for optical manipulation of ferroelectricity.
Ultra‐stretchable thermoplastic elastomeric materials based on styrene–isoprene–styrene triblock copolymer: Influence of calcium copper titanate on mechanical and dielectric properties
Authors: Rana Dhiraj Kumar , Banerjee Pratip Sankar , Betal Soutik , Banerjee Shib Shankar 
Published: November 2023

AbstractConventional charge storage devices made of ceramic materials have limited deformability and configurability due to their extreme stiffness. The high demand for compliant dielectrics has led researchers to look beyond conventional ceramics, despite their very high dielectric properties. In this work, a mechanically robust, highly‐flexible and ultra‐stretchable thermoplastic elastomeric material with dielectric characteristics has been fabricated by introducing calcium copper titanate [CaCu3Ti4O12] (CCTO) dielectric material onto macromolecular chains of styrene–isoprene–styrene (SIS) triblock copolymer via a solution‐based polymer processing technique. CCTO powders have been synthesized using sol–gel technique. The resulting composite is ultra‐stretchable with strain at break of ~3200% and has high dielectric permittivity of ~10. High dielectric property is attributed to the well‐dispersed dielectric CCTO fillers within the SIS matrix, which provide sites for interfacial polarization and space charge accumulation. The influence of CCTO on dielectric properties has also been validated using the modified Cole–Cole model.
Twist is required for muscle development of the adult legs in Henosepilachna vigintioctopunctata
Authors: Anjum Ahmad Ali , Lin Meng‐Jiao , Jin Lin , Li Guo‐Qing 
Published: November 2023

AbstractAlthough muscle development has been widely studied in Drosophila melanogaster, it was a great challenge to apply to developmental processes of other insect muscles. This study was focused on the functional characterization of a basic helix‐loop‐helix transcription factor gene twist in an herbivorous ladybird Henosepilachna vigintioctopunctata. Its transcript (Hvtwist) levels were detected in all developmental stages. RNA interference (RNAi)‐aided knockdown of Hvtwist at the penultimate larval instar stage impaired pupation, and caused a deformed adult in the legs. The tarsi were malformed and did not support the bodies in an upright position. The climbing ability was impaired. Moreover, around 50% of the impaired adults had a malformed elytrum. In addition, they consumed less foliage and did not lay eggs. A hematoxylin–eosin staining of the leg demonstrated that the tibial extensor (TE) and the tibial flexor (TF) muscles were originated from the femurs while levator and depressor muscles of the tarsus (TL and TD) were located in the tibia in the control adults, in which tarsal segments were devoid of muscles. RNAi treatment specific to Hvtwist expression markedly impaired TE and TF muscles in the femurs, and prevented the development of TL and TD muscles in the tibia. Therefore, our findings demonstrate Twist plays a vital role in the myogenesis in H. vigintioctopunctata adult legs.
Establishment of a cell culture platform for human liver organoids and its application for lipid metabolism research
Authors: Kuboyama‐Sasaki Ayane , Takahashi Yu , Xia Chen , Hiro Kahori , Kobayashi Tsuyoshi , Ohdan Hideki , Shimizu Makoto , Yamauchi Yoshio , Kiyono Hiroshi , Sato Ryuichiro 
Published: November 2023

AbstractHuman liver organoids (HLOs) are reliable tools to represent physiological human liver biology. However, their use is limited especially in basic sciences. One of the reasons for this would be the insufficient systematic methodology to handle HLOs, including culture system, functional assessment, and gene transduction. Here, we generated and characterized mouse L cells stably and simultaneously overexpressing R‐spondin1, hepatocyte growth factor, fibroblast growth factor (FGF) 7, and FGF10 via lentiviral transduction. The conditioned medium of the cells contributed to HLO growth as a replacement of commercially available recombinant proteins, which leads to a significant reduction of their culture cost. Proliferative and maturation phases of the cells were controlled by switching the medium to facilitate the evaluation of hepatocyte function, including insulin responsiveness and intracellular lipid accumulation. Gene expression analysis revealed that HLOs highly expressed genes involved in lipid metabolism. Importantly, HLOs secreted physiologically matured very low‐density lipoprotein, which is rarely observed in mice and in established cell lines. Efficient gene transduction into HLOs was achieved via a transient 2‐dimensional culture during viral infection. This study provides an invaluable platform for utilizing HLOs in various research fields, such as molecular biology, pharmacology, toxicology, and regenerative medicine.
Antibacterial Photodynamic Therapy by Zn(II)‐Curcumin Complex: Synthesis, Characterization, DFT Calculation, Antibacterial Activity, and Molecular Docking
Authors: Kushwaha Rajesh , Rai Rohit , Gawande Vedant , Singh Virendra , Yadav Ashish Kumar , Koch Biplob , Dhar Prodyut , Banerjee Samya 
Published: November 2023

AbstractThe increase in antibacterial drug resistance is threatening global health conditions. Recently, antibacterial photodynamic therapy (aPDT) has emerged as an effective antibacterial treatment with high cure gain. In this work, three Zn(II) complexes viz., [Zn(en)(acac)Cl] (1), [Zn(bpy)(acac)Cl] (2), [Zn(en)(cur)Cl] (3), where en=ethylenediamine (1 and 3), bpy=2,2’‐bipyridine (2), acac=acetylacetonate (1 and 2), cur=curcumin monoanionic (3) were developed as aPDT agents. Complexes 1–3 were synthesized and fully characterized using NMR, HRMS, FTIR, UV‐Vis. and fluorescence spectroscopy. The HOMO–LUMO energy gap (Eg), and adiabatic splittings (ΔS1−T1 and ΔS0−T1) obtained from DFT calculation indicated the photosensivity of the complexes. These complexes have not shown any potent antibacterial activity under dark conditions but the antibacterial activity of these complexes was significantly enhanced upon light exposure (MIC value up to 0.025 μg/mL) due to their light‐mediated 1O2 generation abilities. The molecular docking study suggested that complexes 1–3 interact efficiently with DNA gyrase B (PDB ID: 4uro). Importantly, 1–3 did not show any toxicity toward normal HEK‐293 cells. Overall, in this work, we have demonstrated the promising potential of Zn(II) complexes as effective antibacterial agents under the influence of visible light.
Professional financial advice and investor behavior during the COVID‐19 pandemic
Authors: Liu Zhikun , Finke Michael , Blanchett David 
Published: November 2023

AbstractEmployees are commonly defaulted into either a homogeneous passive investment such as a target‐date fund, or into a managed account that offers personalization and access to an advisor. Higher performance among investors in target‐date funds suggests a possible behavioral benefit of a passive default that requires no active monitoring by investors. Access to a human advisor and an asset allocation matched to employee risk preferences can also help investors avoid trading after a market decline. This paper explores the relationship between trading activity and advice‐seeking behavior among 5 million US DC participants during the COVID‐19 pandemic, comparing self‐directors and target‐date fund investors to those using managed accounts service. We find participants who use target‐date funds are less likely to phone during a market crash. Participants in managed accounts are the least likely to trade after seeking advice. These findings are consistent with the hypothesis that passive default can improve outcomes where active choice can harm outcomes, and personalized defaults with access to advice can help participants avoid investment mistakes.
Investigation into the performance and stability of immobilized and coated polysaccharide columns in supercritical fluid chromatography
Authors: Yue Lei , Yeh Madeline , Reilly John , Wang Bing , Welch Christopher J. , Phan Maria 
Published: November 2023

AbstractIn this study, the performance of the widely used “golden four” coated chiral stationary phases (Chiralpak AD‐3, Chiralcel OD‐3, Chiralpak AS‐3, and Chiralcel OJ‐3) was compared with their corresponding immobilized versions (Chiralpak IA‐3, Chiralpak IB‐3, Chiralpak IB N‐3, Chiralpak IH‐3, and Chiralpak IJ‐3) under supercritical fluid chromatography (SFC) conditions with a set of 30 racemic compounds. Using the traditional modifiers, methanol and isopropanol, the immobilized columns (Chiralpak IB N‐3 and Chiralpak IH‐3) showed an improved general ability to successfully resolve the enantiomers of the target analytes relative to their coated versions (Chiralcel OD‐3 and Chiralpak AS‐3), while the coated columns (Chiralpak AD‐3, Chiralcel OD‐3, and Chiralcel OJ‐3) performed better than their immobilized versions (Chiralpak IA‐3, Chiralpak IB‐3, and Chiralpak IJ‐3). An investigation of the non‐traditional modifiers, dichloromethane, ethyl acetate, and tetrahydrofuran with immobilized columns, revealed a generally decreased ability to successfully resolve the enantiomers of the target analytes, relative to the use of the traditional modifiers, methanol and isopropanol. The stability of the coated columns (Chiralpak AD‐H and Chiralcel OD‐H) was evaluated by injecting “forbidden” solvents, including dichloromethane, dimethyl sulfoxide, and tetrahydrofuran. After 200 injections of these solvents on coated columns, the retention factors and resolutions slightly decreased, and a significant increase in column backpressure was observed, indicating some degree of stationary phase degradation.
Enhancing social responsibility and resilience through entrepreneurship and digital environment
Authors: Awad Jeehan , Martín‐Rojas Rodrigo 
Published: November 2023

AbstractFollowing the COVID‐19 pandemic, organisational resilience is key, especially for small and medium‐sized enterprises (SMEs), which must face crises and overcome the handicap of today's digital markets. We explore how corporate social responsibility (CSR), digital technologies (DTs) and corporate entrepreneurship synergistically enhance SMEs' organisational resilience, employing dynamic capabilities theory to reveal mechanisms underlying CSR, DTs and organisational resilience. We assess this synergy empirically by surveying 259 participants from Andalusia's business landscape. Theoretical and practical implications illuminate SMEs' strategic DT use to amplify CSR and resilience. Finally, we outline practical guidelines for policymakers, business leaders and entrepreneurs to foster sustainable innovative practices. Embracing CSR and entrepreneurship cultivates resilience, enabling enterprises to thrive amidst challenges and stay competitive. Our paper advances knowledge by combining CSR's and DTs' roles in developing resilience in entrepreneurship. Ultimately, recognising and harnessing CSR, DTs and entrepreneurship synergy empowers SMEs to forge resilient business environments for lasting success.
Synthesis, Structure and Magnetic Properties of Some Copper(II) Complexes Supported by Pendant Calix[4]arene Ligands
Authors: Jäschke Astrid , Kischel Marcus , Börner Martin , Carlotto Silvia , Armelao Lidia , Luneau Dominique , Kersting Berthold 
Published: November 2023

AbstractThe synthesis and characterization of three new calix[4]arene ligands bearing two pendant acylhydrazone arms and some of their Cu2+ complexes, namely [Cu(L1‐2H)(MeOH)] (3), [Cu(L1’‐H)(Cl)(2‐hydroxy‐1‐naphthaldehyde)] (4), [Cu2(L2‐2H)2] (5) and [Cu4(L3‐2H)2(OH)2(ClO4)2] (6) are described. The ligands are obtained by simple imine condensation reactions between calix[4]arene‐1,3‐bis‐acyl‐hydrazides and the corresponding carbaldehydes. The Cu2+ ions are always situated in 5‐membered chelate rings, either in a deprotonated −O−CR=N−N=CHR (enolate) or a neutral O=CR−NH−N=CHR (keto) form. In 3 and 4 a 5‐membered chelate ring is formed through interaction of the Cu2+ ion with the naphtholato group. Additional MeOH, chlorido or naphthaldehyde ligands complete the planar (3) or square pyramidal (4) coordination spheres. The thiophenes in 5 do not interact with the Cu2+ ions and dimerization of [CuL] entities occurs to produce centrosymmetric 2 : 2 complexes with four‐coordinated Cu2+ ions. In 6, two dinuclear [Cu2(L3‐2H)(OH)] subunits are connected by μ1,3‐bridging ClO4− ions. The magnetic properties of polycrystalline samples of 5 and 6 were studied by variable temperature magnetic susceptibility measurements. The χ′′(T) vs T plots indicate antiferromagnetic exchange interactions. The exchange interactions in 6 (J=−4.8 cm−1) were found to be stronger than in 5 (J=−0.54 cm−1). This is also supported by broken symmetry DFT calculations.
Refactoring BZIP2 on the new‐generation sunway supercomputer
Authors: Liu Xiaohui , Yin Zekun , Tian Haodong , Wan Wubing , Hua Mengyuan , Zhao Wenlai , Huang Zhenchun , Gao Ping , Zhu Fangjin , Wang Hua , Duan Xiaohui 
Published: November 2023

AbstractHigh‐performance computing is progressively assuming a fundamental role in advancing scientific research and engineering domains. However, the ever‐expanding scales of scientific simulations pose challenges for efficient data I/O and storage. The data compression technology has garnered significant attention as a solution to reduce data transmission and storage costs while enhancing performance. In particular, the BZIP2 lossless compression algorithm has been widely used due to its exceptional compression ratio, moderate compression speed, high reliability, and open‐source nature. This paper focuses on the design and realization of a parallelized BZIP2 algorithm tailored for deployment on the New‐Generation Sunway supercomputing platform. By leveraging the unique cache patterns of the New‐Generation Sunway processor, we propose the highly tuned multi‐threading and multi‐node implementations of the BZIP2 applications for different scenarios. Moreover, we also propose the efficient BZIP2 libraries based on the management processing element and computing processing element which support the commonly used high‐level (de)compression interfaces. The test results indicate that the our multi‐threading implementation achieves maximum speedup of 23.09 (8.57) in decompression(compression) compared to the sequential implementation. Furthermore, the multi‐node implementation achieves 50.81% (26.35%) parallel efficiency and peak performance of 16.6 GB/s (52.8 GB/s) for compression(decompression) when scaling up to 2048 processes.