bluuebunny/crossref_metadata_2025_split huggingface dataset:
Optimal security control for networked switched systems with a state‐prediction‐based anti‐DoS mechanism
Authors: Qi Yiwen , Geng Honglin , Xing Ning , Huang Jie , Huang Yanwei 
Published: July 2023

AbstractThe openness of networks renders them vulnerable to various forms of attacks. When networked switched systems (NSS) suffer from denial of service (DoS) attacks and delays, the real‐time property of the dataset decreases, greatly affecting the control performance. To address this issue, this article proposes a switched adaptive dynamic programming (ADP) predictive control method. An event‐triggered mechanism is designed to reduce unnecessary waste of network transmission resources. A predictive mechanism is designed to accurately reconstruct the missing system state and switching signal under DoS network attacks. Then, the reconstructed data are applied to train the actor and critic neural networks, which are used to approximate the optimal control policy and performance index function (PIF) of the NSS, respectively. Furthermore, the iterative convergence of the switched ADP algorithm is proved. Finally, a numerical example is provided to verify the effectiveness of the proposed method.
Understanding resilience in sustainable development: Rallying call or siren song?
Authors: Park Albert Sanghoon 
Published: July 2023

AbstractThis article asks how the concept of resilience has been used in development studies. Set amidst the rise of resilience in sustainable development, it offers insights for scholars and policymakers, alike. Sampling 419 journal articles from 2017 to 2022, it uses Kuhnian paradigms to analyse development knowledge production on resilience. This produces three key findings. First is the absence of a coherent resilience paradigm (with shared definitions, problems and methods) in development studies. Second is its use, instead, by incumbent development paradigms in piecemeal fashion to extend and/or repackage pre‐existing arguments. Third are ensuing possibilities for resilience as both a rallying call and siren song in sustainable development. Ultimately, resilience‐based research and policy discourses open vital space for collective action across interdisciplinary and international divides. However, a lack of critical awareness of its non‐uniform use can produce more harm than help. If the language of resilience is to advance collective prospects for development cooperation and climate action, then it will help to know precisely what we each are talking about.
Non‐state shareholder governance and corporate sustainability: Evidence from environmental, social and governance ratings
Authors: Luo Kun , Huang Yuanrui , Lv Yi 
Published: July 2023

AbstractWe study how non‐state shareholder governance affects the performance of corporate environmental, social and governance (hereinafter ESG). We select all A‐shares state‐owned listed companies on the Shanghai and Shenzhen stock exchanges from 2011 to 2020 as the research sample. We find that non‐state shareholder governance can improve the ESG ratings by improving green innovation and information transparency. Further analysis shows that non‐state shareholder governance has a significant impact on the ESG ratings of polluting industries, high degree of marketization area, and high competitive industries; the enthusiasm of non‐state shareholders to participate in shareholders' meeting has a great impact on the ESG ratings. This research enriches the influence of non‐state shareholder governance and provides channels for state‐owned enterprises to improve ESG ratings. In addition, this article has important practical significance for state‐owned enterprises to deepen reform and strengthen environmental governance.
Nano‐Nickel Doped Carbon Xerogel: Synthesis, Characterization and Catalytic Performance towards Ethanol Fuel Electro‐oxidation
Authors: El‐Jemni Mahmoud A. , Hassan Hamdy H. , Abd El Rehim Sayed S. , Abdel‐Samad Hesham S. 
Published: July 2023

AbstractIn this work, the synergism between the nano nickel particles and its carbon xerogel support, CX, together with their graphite substrate, G, leads to an efficient Nickel/CX/G electrode for electrocatalysis of ethanol oxidation reaction, EOR. The preparation conditions are optimized. The optimum electrode is made of 6 % weight of Ni doped in CX matrix and drop‐casted on a graphite surface, Ni‐6/CX/G. The catalyst structure and morphology are investigated using XRD, SEM, TEM and FTIR techniques. The electrochemical activity towards EOR is tested in 1 M NaOH+1 M Ethanol solutions by cyclic voltammetry combined with a rotating ring disk electrode. The optimum electrode shows an oxidation peak current density value of 5925
and considerable stability. This electrode may serve as a good candidate for the anode in the Direct Alkaline Ethanol Fuel Cell, DAEFC.
Facile One‐Pot Synthesis of Uniquely Designed Au−Cu2O Nanocomposites for Effective Catalytic Degradation of Azo Dyes
Authors: Legaspi Enrico Daniel R. , Regulacio Michelle D. , Pineda Leila Andrea E. , Sayson Luce Vida A. , Jiang Wenbin , Heng Jerry Zhi Xiong , Wu Wenya , Ye Enyi 
Published: July 2023

AbstractIn the study of metal–semiconductor nanocomposites, the Au−Cu2O system is of significant interest because it can give rise to a variety of hybrid designs with pronounced activity for catalytic applications. In this work, a facile one‐pot synthetic strategy was developed to prepare Au−Cu2O nanocomposites with a unique core–shell nanoflower configuration, where a cluster of tiny Au nanoparticles constitutes the core, while larger cube‐like Cu2O nanoparticles surround this core in a petal‐like arrangement. Unlike previously published procedures that rely on two‐pot synthesis routes to generate the Au−Cu2O hybrid, the one‐pot synthesis protocol presented in this work is a more straightforward and less laborious approach that does not require a separate pre‐synthesis step. Furthermore, the synthesis can be conveniently performed at ambient conditions using nontoxic reagents. When tested as catalysts, the uniquely designed Au@Cu2O nanoflowers were found to effectively catalyze the borohydride‐mediated degradation of synthetic azo dyes (methyl orange and congo red). The hybrid exhibited superior catalytic activity relative to pristine Cu2O, underscoring the significance of creating a nanocomposite.
Flower‐Like Ag6Si2O7/Bi12O17Cl2 p‐n Heterojunctions: Enhanced Photocatalytic Activity and Mechanistic Insight**
Authors: Zhang Yunxian , Wang Fangxiao 
Published: July 2023

AbstractPhotocatalytic degradation is one of the effective ways to remove dyes. Accelerating the separation of photogenerated charge is an effective method for high efficiency visible‐driven catalysis. Here, a potential flower‐like Ag6Si2O7/Bi12O17Cl2 p‐n heterojunctions were successfully prepared. Ag6Si2O7/Bi12O17Cl2 can achieve light capture in a wider range of visible light and provide directional channel for carrier to achieve more efficient space charge separation. The constructed Ag6Si2O7/Bi12O17Cl2 showed excellent photocatalytic removal of 25 mg/L (100 mL) Rhodamine B (RhB) within 20 min. The rate constant for RhB degradation was 0.202 min−1 by Ag6Si2O7/Bi12O17Cl2‐2 which was more than 3.6 times greater than Bi12O17Cl2 (0.055 min−1) and 3.2 times greater than Ag6Si2O7 (0.063 min−1). In addition, the results of free radical capture experiment indicate the ⋅OH plays a leading role in the photocatalytic degradation of RhB and a possible Z‐scheme charge transfer paths and the formation of active species over Ag6Si2O7/Bi12O17Cl2 was proposed to elucidate the reaction mechanism.
Nickel Promoted Temperature Control and Time Dependent C−S and C−N Bond Formation: Construction of 2‐Arylsulfonyl Arylcyanamides and 2‐Aminophenyl Benzothiazole
Authors: Vasu Juthiga V. V. K. , Balha Megha , Tamminana Ramana 
Published: July 2023

AbstractAn efficient temperature control C−S and C−N bond formation under mild nickel‐catalysed domino cross‐coupling conditions is described. The advantages of this approach are good functional group compatibility, cheaper nickel catalyst, and use of mild base. In addition, to the best of our knowledge this methodology is the first successful example of nickel‐catalysed synthesis of 2‐Arylsulfonyl Aryl cyanamides and 2‐Aminophenyl Benzothiazole.
Copper(II)bromide/2,4,6‐tri‐(2‐pyridyl)‐1,3,5‐triazine Complex for the Photo Atom Transfer Radical Polymerization of Acrylate and Methacrylate Monomers
Authors: Sharma Bhawna , Verma Akash , Saini Swati , Oluokun Tolulope , Kumar Umesh 
Published: July 2023

Abstract2,4,6‐tri‐(2‐pyridyl)‐1,3,5‐triazine (TPT) has been successfully utilized as an effective ligand for the photo atom transfer radical polymerization (photoATRP) of acrylate and methacrylate monomers in the absence of photoinitiators or photosensitizers. The UV light (λmax=365 nm, I=10 mW/cm2) assisted photoATRP of methyl methacrylate (MMA) yields poly(methyl methacrylate) (PMMA) with high monomer conversion (88.5 %), low PDI (1.21), and high end‐group fidelity using 100 ppm concentration of copper(II) bromide. The efficacy of the TPT ligand was further scrutinized by polymerizing different acrylate and methacrylate monomers, including methyl acrylate (MA), MMA, n‐butyl acrylate (n‐BA), n‐butyl methacrylate (n‐BMA), n‐benzyl methacrylate (n‐bMA), and ethylene glycol dimethacrylate. The kinetic study revealed the first‐order polymerization behavior of PMMA with an induction period of 2 h, suggesting the livingness of polymerization. The temporal control experiments were also performed, indicating the efficient activation and deactivation mechanism of the polymerization.
Theoretical Insights into Excited‐State Stepwise Double Proton Transfer Associated with Solvent Polarity for 2‐bis(benzothia‐zolyl)naphthalene‐Diol Compound
Authors: Zhao Jinfeng , Yang Yunfan , Li Liu , Zhang Haohua 
Published: July 2023

AbstractInspired by the excellent photochemical properties of 2‐(2′‐hydroxyphenyl)benzazole and its derivatives, in this work, the novel 2‐bis(benzothia‐zolyl)naphthalene‐diol (2‐BBTND) fluorophore is explored about its photo‐induced behaviors. The intramolecular double hydrogen bonding interaction and the excited state intramolecular double proton transfer (ESDPT) behavior of 2‐BBTND fluorophore are investigated in combination with different polar solvent environments. From the structural changes and charge recombination induced by photoexcitation, we can affirm that strong polar solvent environment promotes the excited state dynamical reaction for 2‐BBTND compound. By constructing potential energy surfaces (PESs) in S0 and S1 states, we clarify that 2‐BBTND fluorophore should undergo the stepwise ESDPT reaction after photoexcitation. Combined with the size of potential energy barriers along with reaction paths in different solvents, we finally propose a new solvent‐polarity‐dependent stepwise ESDPT for 2‐BBTND fluorophore.
Steroid‐Hymecromone Conjugates with Improved Antiproliferative and Antimicrobial Potential: Synthesis, Biological Evaluation, and in silico ADME Prediction
Authors: Erdagi Sevinc Ilkar 
Published: July 2023

AbstractIn this study, hymecromone with known therapeutic aspects was conjugated with steroids a class of natural products that widely exhibited broad biological functions. Cholic acid, diosgenin, cholesterol, DHEA, and testosterone were selected as steroid moiety, each of which has a different biological mechanism of action. This study focused on developing novel conjugates that can be used as multi‐targeted drugs for treating various diseases. All conjugates were evaluated in vitro for their antiproliferative and antimicrobial activities and discussed for the structure‐activity relationship. The conjugates 5 and 6 exhibited comparable cytotoxic effects to reference drugs against cancer cell lines (K562, MCF‐7, and HeLa) while showing no toxicity against healthy cells (L929). Conjugates 7 and 5 demonstrated antibacterial activity against Gram‐positive and Gram‐negative bacteria, with lower minimum inhibitory concentration (MIC) values than the standard ciprofloxacin drug. Conjugate 6, On the other hand, had the lowest MIC value against the fungus, comparable to that of the standard drug ketoconazole. The physicochemical and pharmacokinetic properties of conjugates were in silico computed and evaluated. Overall, the outputs of this study suggest that these conjugates have promising potential as therapeutic agents, offering a multi‐targeted approach for the treatment of various diseases.
Assessing the physiological basis for resilience in military personnel
Authors: McClung James P. , Beckner Meaghan E. , Farina Emily K. 
Published: July 2023

AbstractMilitary personnel experience training and operational demands that are different from civilian populations, including frequent deployment, exposure to austere environments, and dislocation from family. These unique occupational demands may result in negative impacts on health, performance, and career success. As such, resilience, defined as a system's capacity to resist, recover, recover better, or adapt, to perturbation from a challenge or stressor, is a critical factor in assuring the health and safety of military personnel. In recent years, the Department of Defense (DoD) has funded research programs assessing the physiological basis of resilience. This review will overview research programs, review salient findings from recent studies, and highlight potential future areas of research. Physiological factors influencing or predicting resilience in US military populations, including physical performance, anthropometrics and body composition, nutrition and dietary supplements, and other biomarkers will be highlighted. Finally, this manuscript will detail potential future studies, including interventions, aimed at optimising physiological resilience in military personnel.
Multiple Bio‐Actives Loaded Gellan Gum Microfibers from Microfluidics for Wound Healing
Authors: Guo Jiahui , Yu Yunru , Shen Yingbo , Sun Xiaoyan , Bi Yan , Zhao Yuanjin 
Published: July 2023

AbstractWound healing, known as a fundamental healthcare issue worldwide, has been attracting great attention from researchers. Here, novel bioactive gellan gum microfibers loaded with antibacterial peptides (ABPs) and vascular endothelial growth factor (VEGF) are proposed for wound healing by using microfluidic spinning. Benefitting from the high controllability of microfluidics, bioactive microfibers with uniform morphologies are obtained. The loaded ABPs are demonstrated to effectively act on bacteria at the wound site, reducing the risk of bacterial infection. Besides, sustained release of VEGF from microfibers helps to accelerate angiogenesis and further promote wound healing. The practical value of woven bioactive microfibers is demonstrated via animal experiments, where the wound healing process is greatly facilitated because of the excellent circulation of air and nutritious substances. Featured with the above properties, it is believed that the novel bioactive gellan gum microfibers would have a remarkable effect in the field of biomedical application, especially in promoting wound healing.
Pushing the Limits of Capillary Assembly for the Arbitrary Positioning of Sub‐50nm Nanocubes in Printable Plasmonic Surfaces
Authors: Capitaine Anna , Fajri Muhammad L. , Sciacca Beniamino 
Published: July 2023

AbstractThe fabrication of high quality nanophotonic surfaces for integration in optoelectronic devices remains a challenge because of the complexity and cost of top–down nanofabrication strategies. Combining colloidal synthesis with templated self‐assembly emerged as an appealing low‐cost solution. However, it still faces several obstacles before integration in devices can become a reality. This is mostly due to the difficulty in assembling small nanoparticles (<50 nm) in complex nanopatterns with a high yield. In this study, a reliable methodology is proposed to fabricate printable nanopatterns with an aspect ratio varying from 1 to 10 and a lateral resolution of 30 nm via nanocube assembly and epitaxy. Investigating templated assembly via capillary forces, a new regime was identified that was used to assemble 30–40 nm nanocubes in a patterned polydimethylsiloxane template with a high yield for both Au and Ag with multiple particles per trap. This new method relies on the generation and control of an accumulation zone at the contact line that is thin as opposed to dense, displaying higher versatility. This is in contrast with conventional wisdom, identifying a dense accumulation zone as a requirement for high‐yield assembly. In addition, different formulations are proposed that can be used for the colloidal dispersion, showing that the standard water‐surfactant solutions can be replaced by surfactant‐free ethanol solutions, with good assembly yield. This allows to minimize the presence of surfactants that can affect electronic properties. Finally, it is shown that the obtained nanocube arrays can be transformed into continuous monocrystalline nanopatterns via nanocube epitaxy at near ambient temperature, and transferred to different substrates via contact printing. This approach opens new doors to the templated assembly of small colloids and could find potential applications in various optoelectronic devices ranging from solar cells to light‐emitting diodes and displays.
Wheel‐structured Triboelectric Nanogenerators with Hyperelastic Networking for High‐Performance Wave Energy Harvesting
Authors: Hu Yuchen , Qiu Huijing , Sun Qijun , Wang Zhong Lin , Xu Liang 
Published: July 2023

AbstractDeveloping clean and renewable energy sources is an important strategy to reduce carbon emission and achieve carbon neutrality. As one of the most promising clean energy sources, large‐scale, and efficient utilization of ocean blue energy remains a challenging problem to be solved. In this work, a hyperelastic network of wheel‐structured triboelectric nanogenerators (WS‐TENGs) is demonstrated to efficiently harvest low‐frequency and small‐amplitude wave energy. Different from traditional designs of smooth shell, the external blades on the TENG allow tighter interaction between the wave and the device, which can roll on the water surface like a wheel, continuously agitating internal TENGs. Moreover, the hyperelastic networking structure can stretch and shrink like a spring with stored wave energy, further intensifying the roll of the device, and connecting the WS‐TENGs to form a large‐scale network. Multiple driving modes with synergistic effects can be realized under wave and wind excitations. Self‐powered systems are fabricated based on the WS‐TENG network, showing the capability of the device in real wave environment. The work provides a new driving paradigm that can further enhance the energy harvesting capability toward large‐scale blue energy utilization based on TENGs.
Mechanical properties and life cycle assessment of sugarcane bagasse and corn cob ashes‐based geopolymer concrete to promote circular economy
Authors: Umer Muhammad , Ahmad Junaid , Abdullah Muhammad Saleem , Khan Hamas Ahmad , Ali Shehroze , Younas Muhammad Umair 
Published: July 2023

AbstractGeopolymer concrete (GC) has emerged as an environmentally friendly alternative to ordinary concrete, resulting from the alkalination of an Alumino‐Silicate (Al‐Si) source material. Large‐scale applications of GC are predicated on a suitable supply of Al‐Si sources, however rapid depletion of traditional sources like fly ash imposes a challenge therein and alternative source materials need to be identified. Agricultural waste ashes (AGWA) also exhibit high Al‐Si content; therefore, in this study, two AGWA, that is, Corn Cob Ash (CCA) and Sugarcane Bagasse Ash (SCBA) were used in lieu of fly ash for GC synthesis. The results for workability and mechanical testing showed that properties of GC remained intact for up to 20% and 10% CCA and SCBA, respectively. Life cycle assessment showed that AGWA‐based GC reduced the greenhouse gas emissions of ordinary concrete by 49% and can be used as an environmentally friendly alternative thereof, thus contributing to the circular economy.
The effect of temperature and acute hypoxia/hyperoxia exposure on swimming performance and kinematics of Freshwater Drum
Authors: Laubach Colin , DeVries Dennis R. , Wright Russell A. , Smith David L. 
Published: July 2023

Abstract

Objective
Altered temperature and dissolved oxygen (DO) regimes in the tailwaters below dams can cause stress to fish. Despite their widespread distribution in rivers across North America, Freshwater Drum Aplodinotus grunniens have received little attention relative to the effects of these potential stressors. Quantifying fish swimming performance and kinematics in simulated tailwater conditions can help to determine how riverine species are affected by dam water releases, with the ultimate goal of identifying improved management strategies for these systems.

Methods
We quantified Freshwater Drum swimming performance and kinematics by measuring critical swimming speed (in both relative [RUcrit; body lengths/s] and absolute [AUcrit; cm/s] units), tailbeat frequency, tailbeat amplitude, and Strouhal's number under all combinations of low-DO (4 mg/L), normoxic (9 mg/L), and high-DO (14 mg/L) conditions at low (10°C), intermediate (20°C), and warm (30°C) water temperatures using both 90- and 850-L swim flumes.

Result
Dissolved oxygen at these concentrations did not affect swimming performance. The effect of temperature on swimming performance depended on fish size; RUcrit, AUcrit, and tailbeat frequency decreased with fish length but increased with temperature. In contrast, tailbeat amplitude increased with fish length but did not differ across temperatures.

Conclusion
These results suggest that acute low- and high-DO exposure within the tested range may not affect swimming performance or kinematics. However, the influence of temperature on Freshwater Drum swimming performance suggests that the ability of fish to hold position in a tailrace or to successfully pass upstream of a dam may vary seasonally and may depend on the depth from which water is released from a reservoir, as release depth determines the water temperature.
Layered GaGe2Te: structure and chemical bonding
Authors: Juhlke Tobias , Steinberg Simon , Staab Lennart , Lawrence Bright Eleanor , Oeckler Oliver 
Published: July 2023

AbstractThe structure of the new compound GaGe2Te has been determined using nanofocused synchrotron radiation. The trigonal structure (space group P
m1, a=4.0443(3) Å, c=14.923(2) Å, V=211.38(4) Å3; Z=2) consists of Ge bilayers sandwiched by Ga−Te layers. Ge and Ga are tetrahedrally coordinated. The layer packages are separated by a van der Waals gap with a Te−Te distance of 4.1502(7) Å. The structure resembles that of GaGeTe but features an additional Ge atom layer. Despite small scattering contrast of Ga and Ge, precise high‐resolution data enable unequivocal atom assignment as confirmed by R values of different models. DFT calculations suggest only a small extent of charge transfer, which is confirmed by both Bader and Mulliken charges. Thus, bonding within the layer packages is predominantly covalent, especially between Ga and Ge. Formal oxidation states according to GaIIIGe(0)Ge−ITe−II, i. e. assuming rather ionic Ge−Ga bonds, convey a much less realistic situation than GaIIGe2(0)Te−II, which is in line with GaGeTe.