bluuebunny/crossref_metadata_2025_split huggingface dataset:
The fluorinated SiO2 self‐assembly surface of epoxy resin with excellent insulating and superhydrophobic properties
Authors: Xie Qing , Yin Guohua , Duan Qijun , Zhong Yuyao , Xie Jun , Fu Kexin , Wang Peng 
Published: July 2023

AbstractThe flashover and dampness on the surface of epoxy resin (ER) composites are two critical factors leading to the failure of high voltage direct current (HVDC) insulating devices. Designing and constructing a surface structure with high insulating and hydrophobic performance is an effective way to solve these problems. In this paper, we prepared fluorinated silica nanoparticles (F‐SiO2) using a combination of dielectric barrier discharge (DBD) plasma and 1H,1H,2H,2H‐Perfluorodecyltrimethoxysilane (FAS‐17). The resulting low‐surface‐energy F‐SiO2 self‐assembled on the surface of ER to form a thin layer structure. Our results demonstrate a significant improvement in both the surface flashover voltage and hydrophobicity of ER composites with the self‐assembly structure. The maximum surface flashover voltage is increased by 35.73% to 12.08 kV, and the maximum water contact angle reaches superhydrophobicity at 155.5 ± 3°. The improvements in flashover voltage are attributed to changes in trap energy level and surface roughness. At the same time, the superhydrophobicity is due to the low‐surface‐energy characteristics and micro‐nano structure of the self‐assembly structure. This study provides a promising approach for synergistically improving flashover voltage and hydrophobicity of insulating materials.
Biome regulates the effects of long‐term grazing on soil microbial diversity
Authors: Zhao Xuan , Cai Jinting , Song Yueqing , Liu Jushan , Wang Deli , Wang Ling 
Published: July 2023

AbstractIntroductionLivestock overgrazing represents one of the most destructive uses of land in terrestrial ecosystems and threatens biodiversity. However, understanding the effects of livestock overgrazing on below‐ground soil microbial diversity is limited, despite soil microbes representing the majority of biodiversity and determining ecosystem functioning.Materials and MethodsTo investigate the effects of overgrazing on soil microbial richness, a long‐term grazing exclusion experiment was conducted at six sites including three meadow steppes and three typical steppes in northern China.ResultsOur results revealed that overgrazing decreased bacterial and fungal richness across temperate steppes in northern China, and the biome could regulate the overgrazing effects, especially for fungal richness. Specifically, the negative effects of overgrazing on microbial richness were highly significant in typical steppes while not significant in meadow steppes that contained higher plant diversity and precipitation. Partial least‐squares path model showed that overgrazing affected soil microbial richness in highly complex ways, and the affected pathways were different in meadow steppes and typical steppes. The direct negative effects of grazing and their indirect negative effects via soil properties resulted in a significant decrease in microbial richness in typical steppes. In meadow steppes, the indirect beneficial effects via plant attributes offset the direct negative effects of grazing. Consequently, the soil microbial community in meadow steppe resisted overgrazing disturbance.ConclusionOur study illuminates the complex and highly biome‐dependent grazing effects and pathways on soil microbiota and indicates that meadow steppe may be more resistant or resilient to human disturbance than typical steppe. These findings suggest that different grasslands might be managed differently considering their intrinsic characteristics to help biodiversity conservation. Moreover, future research should focus on the underlying mechanisms of grazing effects on soil microbial richness. Besides grazing‐induced plant and soil traits changes, other potential pathways could strongly influence soil microbial diversity.
The social pillar of sustainable development: Measurement and current status of social sustainability of aged care projects in China
Authors: Wang Kun , Ke Yongjian , Sankaran Shankar 
Published: July 2023

AbstractSocial sustainability, the social pillar of sustainable development, has had increasing influences in recent years. It pursues the realisation of human well‐being and focuses on satisfying human needs and improving the quality of life. Unfortunately, there is a lack of social sustainability research in the aged care sector. The definition and indicators for social sustainability in aged care projects in the Chinese context are unclear, let alone the status of its realisation. This study aimed to establish a social sustainability indicator framework for aged care projects in China. Two focus group meetings and two online Delphi surveys were conducted to finalise and evaluate the indicators. Three stakeholders, 10 social impacts, and 21 indicators were identified. The realisation status of 19 indicators needs to be improved, nine of which need special attention. The indicator framework established in this study will be an effective tool to enhance the understanding and measure the social sustainability of aged care projects. As the world's most populous country, China's experience can provide insights to other countries. Moreover, the findings have implications for understanding the social sustainability of other public service projects with social impact.
Highly Enhancing CO2 Photoreduction by Metallization of an Imidazole‐linked Robust Covalent Organic Framework
Authors: Luan Tian‐Xiang , Wang Jia‐Rui , Li Keyu , Li Hailian , Nan Fuchun , Yu William W. , Li Pei‐Zhou 
Published: July 2023

AbstractConverting CO2 into value‐added chemicals to solve the issues caused by carbon emission is promising but challenging. Herein, by embedding metal ions (Co2+, Ni2+, Cu2+, and Zn2+) into an imidazole‐linked robust photosensitive covalent organic framework (PyPor‐COF), effective photocatalysts for CO2 conversion are rationally designed and constructed. Characterizations display that all of the metallized PyPor‐COFs (M‐PyPor‐COFs) display remarkably high enhancement in their photochemical properties. Photocatalysis reactions reveal that the Co‐metallized PyPor‐COF (Co‐PyPor‐COF) achieves a CO production rate as high as up to 9645 µmol g−1 h−1 with a selectivity of 96.7% under light irradiation, which is more than 45 times higher than that of the metal‐free PyPor‐COF, while Ni‐metallized PyPor‐COF (Ni‐PyPor‐COF) can further tandem catalyze the generated CO to CH4 with a production rate of 463.2 µmol g−1 h−1. Experimental analyses and theory calculations reveal that their remarkable performance enhancement on CO2 photoreduction should be attributed to the incorporated metal sites in the COF skeleton, which promotes the adsorption and activation of CO2 and the desorption of generated CO and even reduces the reaction energy barrier for the formation of different intermediates. This work demonstrates that by metallizing photoactive COFs, effective photocatalysts for CO2 conversion can be achieved.
Two Birds One Stone: Graphene Assisted Reaction Kinetics and Ionic Conductivity in Phthalocyanine‐Based Covalent Organic Framework Anodes for Lithium‐ion Batteries
Authors: Zhao Jianjun , Zhou Miaomiao , Chen Jun , Wang Luyi , Zhang Qian , Zhong Shengwen , Xie Haijiao , Li Yutao 
Published: July 2023

AbstractThis work reports a covalent organic framework composite structure (PMDA‐NiPc‐G), incorporating multiple‐active carbonyls and graphene on the basis of the combination of phthalocyanine (NiPc(NH2)4) containing a large π‐conjugated system and pyromellitic dianhydride (PMDA) as the anode of lithium‐ion batteries. Meanwhile, graphene is used as a dispersion medium to reduce the accumulation of bulk covalent organic frameworks (COFs) to obtain COFs with small‐volume and few‐layers, shortening the ion migration path and improving the diffusion rate of lithium ions in the two dimensional (2D) grid layered structure. PMDA‐NiPc‐G showed a lithium‐ion diffusion coefficient (DLi+) of 3.04 × 10−10 cm2 s−1 which is 3.6 times to that of its bulk form (0.84 × 10−10 cm2 s−1). Remarkably, this enables a large reversible capacity of 1290 mAh g−1 can be achieved after 300 cycles and almost no capacity fading in the next 300 cycles at 100 mA g−1. At a high areal capacity loading of ≈3 mAh cm−2, full batteries assembled with LiNi0.8Co0.1Mn0.1O2 (NCM‐811) and LiFePO4 (LFP) cathodes showed 60.2% and 74.7% capacity retention at 1 C for 200 cycles. Astonishingly, the PMDA‐NiPc‐G/NCM‐811 full battery exhibits ≈100% capacity retention after cycling at 0.2 C. Aided by the analysis of kinetic behavior of lithium storage and theoretical calculations, the capacity‐enhancing mechanism and lithium storage mechanism of covalent organic frameworks are revealed. This work may lead to more research on designable, multifunctional COFs for electrochemical energy storage.
Progress on Physical Field‐Regulated Micro/Nanomotors for Cardiovascular and Cerebrovascular Disease Treatment
Authors: You Qing , Shao Xinyue , Wang Jinping , Chen Xiaoyuan 
Published: July 2023

AbstractCardiovascular and cerebrovascular diseases (CCVDs) are two major vasculature‐related diseases that seriously affect public health worldwide, which can cause serious death and disability. Lack of targeting effect of the traditional CCVD treatment drugs may damage other tissues and organs, thus more specific methods are needed to solve this dilemma. Micro/nanomotors are new materials that can convert external energy into driving force for autonomous movement, which can not only enhance the penetration depth and retention rates, but also increase the contact areas with the lesion sites (such as thrombus and inflammation sites of blood vessels). Physical field‐regulated micro/nanomotors using the physical energy sources with deep tissue penetration and controllable performance, such as magnetic field, light, and ultrasound, etc. are considered as the emerging patient‐friendly and effective therapeutic tools to overcome the limitations of conventional CCVD treatments. Recent efforts have suggested that physical field‐regulated micro/nanomotors on CCVD treatments could simultaneously provide efficient therapeutic effect and intelligent control. In this review, various physical field‐driven micro/nanomotors are mainly introduced and their latest advances for CCVDs are highlighted. Last, the remaining challenges and future perspectives regarding the physical field‐regulated micro/nanomotors for CCVD treatments are discussed and outlined.
Prediction of the monotonic load–displacement curve of slender RC beams with corroded transverse and longitudinal reinforcements
Authors: Rossi Pier Paolo , Spinella Nino 
Published: July 2023

AbstractThe present paper proposes a mechanical model for the prediction of the response of slender reinforced concrete beams with corroded transverse and longitudinal reinforcements. The proposed model is based on the Modified Compression Field Theory and is able to predict the load–displacement curve of members subjected to monotonic displacement‐controlled tests up to their peak load. The corrosion‐damage effects are considered by means of an effective width of the beam and by means of reduced values of both cross‐sectional area and strain capacity of steel bars. The accuracy of the model is evaluated by comparison with results of tests reported in the literature. Moreover, a simple relation is suggested for the estimate of the shear strength of reinforced concrete beams with low values of the effective geometric percentage of (corroded) stirrups.
Mechanical properties of short polypropylene fiber enhanced recycled concrete under cyclic compression
Authors: Wu Huiqin , Zhu Zhen , Chen Yuliang , Li Hong , Jiang Weiqin 
Published: July 2023

AbstractThis study investigated the mechanical properties and stress–strain relationship of polypropylene fiber recycled aggregate concrete (PFRAC) subjected to uniaxial cyclic compression. A total of 78 cylindrical specimens were designed for uniaxial cyclic compression test with coarse aggregate replacement rate, polypropylene fiber volume fraction, and loading rate as variation parameters. The failure process of the specimens under cyclic loading was observed and recorded. The stress–strain curve of PFRAC was summarized. The important mechanical properties of PFRAC were obtained, such as plastic strain, accumulated energy dissipation. The microstructure of PFRAC was analyzed by scanning electron microscopy, and the crack resistance mechanism of PFRAC under cyclic loading was revealed. The results show that the PFRAC under cyclic loading appeared oblique splitting failure. The compressive stress–strain curve envelope of PFRAC subjected to cyclic loading exhibited similarity to the monotonic counterpart. The addition of polypropylene fibers can improve the peak stress, peak strain, residual stress, post‐peak ductility, and accumulated energy dissipation of the recycled concrete. In addition, a constitutive relation formula for the PFRAC stress–strain curve under cyclic loading is proposed, and the fitting result is good.
Alignment behavior of nerve, vascular, muscle, and intestine cells in two‐ and three‐dimensional strategies
Authors: Jafari Amir , Behjat Erfan , Malektaj Haniyeh , Mobini Faezeh 
Published: July 2023

AbstractBy harnessing structural hierarchical insights, plausibly simulate better ones imagination to figure out the best choice of methods for reaching out the unprecedented developments of the tissue engineering products as a next level. Constructing a functional tissue that incorporates two‐dimensional (2D) or higher dimensions requires overcoming technological or biological limitations in order to orchestrate the structural compilation of one‐dimensional and 2D sheets (microstructures) simultaneously (in situ). This approach enables the creation of a layered structure that can be referred to as an ensemble of layers or, after several days of maturation, a direct or indirect joining of layers. Here, we have avoided providing a detailed methodological description of three‐dimensional and 2D strategies, except for a few interesting examples that highlight the higher alignment of cells and emphasize rarely remembered facts associated with vascular, peripheral nerve, muscle, and intestine tissues. The effective directionality of cells in conjunction with geometric cues (in the range of micrometers) is well known to affect a variety of cell behaviors. The curvature of a cell's environment is one of the factors that influence the formation of patterns within tissues. The text will cover cell types containing some level of stemness, which will be followed by their consequences for tissue formation. Other important considerations pertain to cytoskeleton traction forces, cell organelle positioning, and cell migration. An overview of cell alignment along with several pivotal molecular and cellular level concepts, such as mechanotransduction, chirality, and curvature of structure effects on cell alignments will be presented. The mechanotransduction term will be used here in the context of the sensing capability that cells show as a result of force‐induced changes either at the conformational or the organizational levels, a capability that allows us to modify cell fate by triggering downstream signaling pathways. A discussion of the cells' cytoskeleton and of the stress fibers involvement in altering the cell's circumferential constitution behavior (alignment) based on exposed scaffold radius will be provided. Curvatures with size similarities in the range of cell sizes cause the cell's behavior to act as if it was in an in vivo tissue environment. The revision of the literature, patents, and clinical trials performed for the present study shows that there is a clear need for translational research through the implementation of clinical trial platforms that address the tissue engineering possibilities raised in the current revision.This article is categorized under:
Infectious Diseases > Biomedical Engineering
Neurological Diseases > Biomedical Engineering
Cardiovascular Diseases > Biomedical Engineering
Unitarity bounds on extensions of Higgs sector
Authors: Lu Bo-Qiang , Huang Da 
Published: July 2023

Abstract
It is widely believed that extensions of the minimal Higgs sector is one of the promising directions for resolving many puzzles beyond the Standard Model (SM). In this work, we study the unitarity bounds on the models by extending the two-Higgs-doublet model with an additional real or complex Higgs triplet scalar. By noting that the SM gauge symmetries SU(2)L × U(1)Y are recovered at high energies, we can classify the two-body scattering states by decomposing the direct product of two scalar multiplets into their direct sum of irreducible representations of electroweak gauge groups. In such state bases, the s-wave amplitudes of two-body scalar scatterings can be written in the form of block-diagonalized scattering matrices. Then the application of the perturbative unitarity conditions on the eigenvalues of scattering matrices leads to the analytic constraints on the model parameters. Finally, we numerically investigate the complex triplet scalar extension of the two-Higgs-doublet model, finding that the perturbative unitarity places useful stringent bounds on the model parameter space.
Celestial Supersymmetry
Authors: Taylor Tomasz R. , Zhu Bin 
Published: July 2023

Abstract
We discuss supersymmetric Yang-Mills theory coupled to dilatons in the framework of celestial holography. We show that in the presence of point-like dilaton sources, the CCFT operators associated with the gauge supermultiplet acquire a simple, factorized form. They factorize into the holomorphic (super)current part and the exponential “light” operators of Liouville theory, in the infinite central charge limit. The current sector exhibits (1,0) supersymmetry, thus implementing spacetime supersymmetry in CCFT.
Is action complexity better for de Sitter space in Jackiw-Teitelboim gravity?
Authors: Anegawa Takanori , Iizuka Norihiro , Sake Sunil Kumar , Zenoni Nicolò 
Published: July 2023

Abstract
Volume complexity in dS2 remains O(1) up to a critical time, after which it suddenly diverges. On the other hand, for the dS2 solution in JT gravity, there is a linear dilaton which smoothly grows towards the future infinity. From the dimensional reduction viewpoint, the growth of the dilaton is due to the expansion of the orthogonal sphere in higher-dimensional dSd (d ≥ 3). Since in higher dimensions complexity becomes very large even before the critical time, by properly taking into account the dilaton, the same behavior is expected for complexity in dS2 JT gravity. We show that this expectation is met by the complexity = action (CA) conjecture. For this purpose, we obtain an appropriate action for dS2 in JT gravity, by dimensional reduction from dS3. In addition, we discuss complexity = “refined volume” where we choose an appropriate Weyl field-redefinition such that refined volume avoids the discontinuous jump in time evolution.
Fisher information of a black hole spacetime
Authors: Patterson Everett , Mann Robert B. 
Published: July 2023

Abstract
Relativistic quantum metrology is the study of optimal measurement procedures within systems that have both quantum and relativistic components. Here we use Unruh-DeWitt detectors coupled to a massless scalar field as probes of thermal parameters in different spacetimes via a relativistic quantum metrology analysis. We consider both (2 + 1)-dimensional anti-de Sitter and BTZ black hole spacetimes. We compute the Fisher information to identify characteristics of the black hole spacetime and to compare it to a uniformly accelerating detector in anti-de Sitter space. We find the dependence of the Fisher information on temperature, detector energy gap, black hole mass, interaction time, and the initial state of the detector. We identify strategies that maximize the Fisher information and therefore the precision of estimation.
Anomalous conductivities in the holographic Stückelberg model
Authors: Rai Nishal , Megías Eugenio 
Published: July 2023

Abstract
We have studied a massive U(1) gauge holographic model with pure gauge and mixed gauge-gravitational Chern-Simons terms. The full backreaction of the gauge field on the metric tensor has been considered in order to explore the vortical and energy transport sector. The background solution has been computed numerically. On this background, we have considered the fluctuation of the fields and evaluated the different correlators. We have found that all the correlators depend on the mass of the gauge field. Correlators such as the current-current one, 〈JxJx〉, which were completely absent in the massless case, in the presence of a finite gauge boson mass start picking up some finite value even at zero chemical potential. Similarly, the energy-current correlator, 〈T0xJx〉, which was also absent in the massless theory, has now a non-vanishing value but for finite values of the chemical potential. Our findings for the chiral vortical conductivity, σV, and the chiral magnetic/vortical conductivity of energy current, $$ {\sigma}_B^{\varepsilon }={\sigma}_V^{\varepsilon } $$

σ
B
ε

=

σ
V
ε

, are completely new results. In addition to this, we have found that these anomalous transport coefficients depend linearly both on the pure Chern-Simon coupling, κ, and on the mixed gauge-gravity Chern-Simon coupling, λ. One of the results that we would like to highlight is that it’s not just κ that contributes to the σB but there is an additional contribution from λ as well unlike the previous studies.
Kerr-Newman black holes from 𝒩 = 1∗
Authors: Amariti Antonio , Segati Alessia 
Published: July 2023

Abstract
The microstate counting of charged rotating AdS5 supersymmetric black holes has been reformulated in terms of an extremization problem, obtained from the superconformal index of the 4d dual SCFT. On the gravitational side this problem corresponds to the attractor mechanism of the theory KK reduced on AdS4. Such procedure has indeed been successfully applied to some consistent truncations with a known field theory dual description. In this paper we study the case of the Leigh-Strassler fixed point along these lines, finding an agreement between the field theory and the gravitational results.
On the Jensen convexity of quasideviation and Bajraktarević means
Authors: Páles Zsolt , Pasteczka Paweł 
Published: July 2023

AbstractMotivated by the characterization theorem about the Jensen convexity of quasiarithmetic means obtained by the authors in 2021, our main goal is to establish a characterization of the Jensen convexity of quasideviation as well as of Bajraktarević means without any additional and unnatural regularity assumptions.
Conservation laws and Hamilton–Jacobi equations with space inhomogeneity
Authors: Colombo Rinaldo M. , Perrollaz Vincent , Sylla Abraham 
Published: July 2023

AbstractConservation laws with an x-dependent flux and Hamilton–Jacobi equations with an x-dependent Hamiltonian are considered within the same set of assumptions. Uniqueness and stability estimates are obtained only requiring sufficient smoothness of the flux/Hamiltonian. Existence is proved without any convexity assumptions under a mild coercivity hypothesis. The correspondence between the semigroups generated by these equations is fully detailed. With respect to the classical Kružkov approach to conservation laws, we relax the definition of solution and avoid any restriction on the growth of the flux. A key role is played by the construction of sufficiently many entropy stationary solutions in $${{\textbf{L}}^\infty }$$

L

∞

that provide global bounds in time and space.