bluuebunny/crossref_metadata_2025_split huggingface dataset:
Nonsingular fixed‐time fault‐tolerant control for multiple Euler–Lagrange systems without continuous communication
Authors: Hua Menghu , Yao Xiang‐Yu , Liu Wen‐Jin , Ding Hua‐Feng 
Published: November 2023

AbstractThis article is concerned with the fixed‐time fault‐tolerant control problem of multiple Euler–Lagrange systems (MELSs) with intermittent communication, actuator faults and input disturbances. A nonsingular fixed‐time control framework with three parts is built for the above problem. In the first part, a novel adaptive controller is proposed for MELSs to ensure the fixed‐time stability of sliding modes while successfully solving the actuator faults, parameter uncertainties and unknown disturbances. In the second part, the fixed‐time estimators based on event‐triggered communication are designed by an error decomposition approach. In the third part, an auxiliary system is introduced for the singularity problem and sufficient condition for achieving the consensus is rigorously proved by synthesizing the results of the above two parts. The key feature of the proposed control framework is that the convergence time is constrained by a constant without involving initial states, and the singularity problems of fixed‐time control is avoided. Finally, simulation examples are provided to prove the efficacy of the proposed algorithms.
CEO entrepreneurial orientation, human resource management systems, and employee innovative behavior: An attention‐based view
Authors: Liu Yueyue , Xi Meng , Wales William J. 
Published: November 2023

AbstractResearch SummaryChief executive officer (CEO) entrepreneurial orientation (EO) is an emerging topic within entrepreneurship research. This research offers the attention‐based view (ABV), and its principles of attentional focus, situated attention, and structural distribution of attention to explain how CEO EO fosters an innovative organizational workforce. We theorize that CEO EO predicts lower‐level employee innovative behavior when their top managerial attentional focus on entrepreneurship is translated into high‐performance work practices, which structurally distribute their strategic attention throughout the organization and promotes a situated attentional condition for employees emphasizing innovation. Moreover, we consider (a) human‐resource management (HRM) perceived importance and (b) departmental functional foci as boundary conditions. Using a multi‐level and multi‐source sample from 152 Chinese firms, results support our arguments.Managerial SummaryEmployee innovative behavior is critical to firm growth, renewal, and sustainability. By collecting and analyzing data on 2745 employees nested in 586 departments nested in 152 organizations, we examine the critical role that human resource management (HRM) systems and high‐performance work practices may play in translating a CEOs emphasis on entrepreneurial activity into employee innovative behavior. We offer and observe support for an attention‐based perspective that HRM systems serve as “attentional structures” which channel CEO preferences to lower‐organizational levels. Our results further indicate that an embrace of HRM as a strategic priority among top managers, as well as whether employees are in “boundary spanning” input–output areas of the business, to be meaningful factors which strengthen the effect of HRM‐based attentional structures upon employee innovative behavior.
Synthesis, Characterization and Apoptosis Capabilities of a Novel Naphthoquinone‐Derived Compound in Triple‐Negative Breast Cancer
Authors: Adacan Kaan , Gokmen Zeliha , Okan Akar Remzi , Ozyıldız Zeynep , Dinçer Hatice , Karakaş Didem , Ulukaya Engin 
Published: November 2023

AbstractBreast cancer is the most frequently diagnosed cancer in women and the second leading cause of cancer‐related deaths. Because triple‐negative breast cancer (TNBC) is highly resistant to clinically employed drugs, developing new drugs and treatment approaches is imperative. Naphthoquinone compounds potentially induce cancer cell death, and their clinical derivatives have been widely used as medicines. This study presents the synthesis and structure of a newly substituted naphthoquinone compound, as determined by spectroscopic techniques, then assesses the compound‘s ability to induce cell death on the MDA‐MB‐231 cell line using SRB viability testing, flow cytometry, and Western Blotting. The study also examines the compound‘s inhibition of cell migration through a scratch assay. The study discovered that the compound demonstrated an antigrowth/cytotoxic impact at concentrations of 3.12 μM and beyond. The cytotoxicity may have been caused by elevated reactive oxygen species, which resulted in DNA damage. The mode of cell death was apoptotic, confirmed by the translocation of phosphatidylserine, the activation of caspases, and the disruption of the mitochondrial membrane potential. The compound seems promising as a new anti‐malignant agent to be used for the treatment of breast cancer and deserves further attention for proof‐of‐concept in animal studies.
Synthesis, Curing Kinetics, and Properties of a Novel Phthalazine‐Based Phthalonitrile Resin
Authors: Jia Dianqiu , Rong Jianxin , Wu Minjie , Chen Xinggang , Yu Xiaoyan , Zhang Qingxin 
Published: November 2023

AbstractA novel phthalazine‐based phthalonitrile resin was prepared by two different curing procedures. The phthalonitrile monomer, namely, 4,4′‐(((phthalazine‐1,4‐diylbis(oxy))bis(3,1‐phenylene))bis(oxy))diphthalonitrile (PDOP), was synthesized from the reaction of 1, 4‐dichloropthalazine, resorcinol, and 4‐nitrophthalonitrile. Its curing behavior and curing kinetics with 4‐(4‐aminophenoxy)phthalonitrile (APPH) were investigated by Differential Scanning Calorimetric (DSC). Isoconversional method based on Starink was applied to analyze the curing process of PDOP/APPH. The PDOP monomer exhibits a low melting point (89 °C) and a wide processing window (146 °C). The PDOP polymer mainly forms triazine, isoindoline, and phthalocyanine structure, as revealed by Fourier Transform Infrared (FTIR) spectroscopy, and its properties improved with the increase of post‐curing temperature and curing time. After post‐curing at 350 °C, the polymer has high storage modulus (3313 MPa), high glass‐transition temperature (380 °C), and outstanding thermal stability and thermal oxidation stability.
Synthesis, Characterization and Evaluation of Antimicrobial Activity, Phytotoxicity, Molecular Docking & Dynamic Simulations of Benzothiazole Functionalized C−C Linked Pyrazolyl‐Thiazoles
Authors: Kamra Nisha , Rani Suman , Kiran  , Thakral Sumit , Parshad Mahavir , Tyagi Prateek , Sharma Deepansh , Sindhu Jayant , Kumar Devinder 
Published: November 2023

AbstractSynthesis of phenyl/benzothiazole functionalized C−C linked pyrazolyl‐thiazoles has been achieved from non‐lachrymatory α‐tosyloxy pyrazolylketones with different thioamides. The pyrazolyl‐thiazoles were characterized by spectroscopic studies and evaluated for antimicrobial activity and phytotoxicity. Compound 6 n displayed better activity with MIC value of 0.0045 μmol/mL against Gram‐positive bacteria B. cereus in comparison to the standard drug Ciprofloxacin (0.0047 μmol/mL). Compound 6 i displayed better activity against fungal strain C. albicans (MIC=0.0152 μmol/mL) in comparison to the standard drug Fluconazole (0.0204 μmol/mL). Compound 6 o diplayed 95 % cell viability against Mouse Fibroblast cell line and 100 % plant seed germination. Docking studies at the topoisomerase II DNA gyrase B (PDB ID: 1KZN) and C. albicans (PDB ID: 1IYL) were used to investigate potential interactions between the most active compound and the receptor protein. The stability of the compounds with 1KZN and 1IYL by molecular dynamic simulations showed that 6 r, 6 n and 6 i present leading structures for next drug development because of their simple synthesis and useful bioactivity.
Construction of AuNPs/UiO‐66−NH2 Decorated Microcantilever Immunosensor for Efficient Detection of Procalcitonin
Authors: Leng Junling , Zhang Yawen , Zhang Yuefei , Tan Zhongbing , Zhao Yuchi , Yao Hang , Chong Hui , Wang Chengyin 
Published: November 2023

AbstractIn this study, gold nanoparticles (AuNPs) were grown on the surface of a metal‐organic framework (UiO‐66−NH2). The resulting AuNPs/UiO‐66−NH2 composite nanomaterials were further used for antibody immobilization on a microcantilever surface. By harnessing the robust signal processing capabilities of integrated circuits, a highly sensitive piezoelectric microcantilever sensor was constructed. The incorporation of nanomaterials resulted in enhanced antibodies immobilization amount, thereby improving the immunosensor‘s sensitivity. Under optimized experimental conditions, a promising linear correlation (R=0.993) was observed between the voltage output intensity of the microcantilever sensor and the logarithmic PCT concentration within a range of 0.1–50 ng/mL. The constructed microcantilever immunosensor based displayed several advantages such as simplicity, rapidity, high sensitivity, and low cost. Moreover, it potentially provided a novel approach to detect other biomolecules.
Development and validation of stability indicating high‐performance thin‐layer chromatographic method for estimation of Rifapentine in pharmaceutical formulation
Authors: Ghantiwala Nehal B. , Dedania Zarna , Dedania Ronak , Patel Unnati 
Published: November 2023

AbstractA simple, accurate, and precise method is described for stability indicating a high‐performance thin‐layer chromatographic (HPTLC) method for development and validation in the pharmaceutical dosage form. The method was based on HPTLC separation of the drug by measurement of the spot at 478 nm. Separation was carried out on silica gel 60GF254 by using mobile phase methanol:toluene:acetic acid (3:7:0.1, v/v/v). The linearity range was between 500–3000 ng/spot with a coefficient of determination 0.999, respectively. The retardation value found was 0.55 ± 0.02 and the % recovery was found to be 100.610 ± 0.035%–101.0178 ± 0.035%. The limit of detection value for Rifapentine was 92.901 ng/spot and the limit of quantitation for Rifapentine was found to be 281.52 ng/spot. Forced degradation studies were carried out under various conditions. In acidic conditions, the % degradation was found to be 20.07%. In alkaline and oxidative conditions, the % degradation was found to be 61.27% and 11.12%. Photolytic and thermal conditions the % degradation was found to be 49.75% and 8.35%. Maximum degradation was found in alkaline condition with 61.27%, an assay for the marketed formulation was carried out and the amount of drug was found to be 149 ± 0.05 mg with a % of 99.25% ± 0.005%.
Preparation and Characterization of Homogeneous Blend of Dietary Fiber and Starch Based on Ionic Liquids
Authors: Zhao Zhe , Chen Dan , Gao Wanxin , Prakash Sangeeta , Wan Jie 
Published: November 2023

AbstractIn this study, a homogeneous blend of starch and dietary fiber (DF), which contained both water‐soluble and water‐insoluble compositions, is prepared in ionic liquids. The morphology and structure of the regenerated blend are studied using a scanning electron microscope (SEM), atomic force microscopy (AFM), differential scanning calorimetry (DSC), Fourier transform infrared (FTIR), X‐ray diffraction (XRD), and thermogravimetric analysis (TGA). It is found that the morphological structures of both original starch and DF are destroyed, and a homogeneous morphological structure is formed for the blend during the dissolution‐regeneration process in ionic liquids. Though no new chemical combination is observed from the infrared spectrum of the regenerated blend, the shift of absorption peaks appeared due to the destruction of the hydrogen bond during the dissolution of ionic liquids. The XRD results showed that the regenerated blend showed a disordered structure which is different from the orderly crystalline structure of original starch and DF. The disordered structure may result in the reduction of thermal stability. Among three ionic liquids 1‐allyl‐3‐methylimidazole chloride ([AMIM]Cl), 1‐ethyl‐3‐methylimidazole chloride ([EMIM]Cl), and 1‐ethyl‐3‐methylimidazole acetate ([EMIM]OAc), [EMIM]Cl has the best solubility to the blend and also has the most disruptive to the native structure of starch and DF, correspondingly.
A reliability evaluation method for complex systems based on the editable GSPN and adaptive Monte Carlo simulation
Authors: Zeng Yining , Sun Youchao , Xu Tao , Su Siyu 
Published: November 2023

AbstractThis paper presents an innovative EGSPN (Editable Generalized Stochastic Petri Net) model, optimizing the size of GSPN (Generalized Stochastic Petri Net) while preserving its core benefits. Specifically, the EGSPN introduces a transition termed “editable transition,” which allows for the establishment of any dynamic logic, thereby circumventing the intricacies associated with the EGSPN model structure. A Monte Carlo (MC) simulation technique is put forth for EGSPN analysis, enhanced by the integration of Sobol sequences with a Bayesian optimizer. This MC simulation approach, unbounded by any specific distribution constraints, exhibits accelerated convergence rates. To address the issue of preset sampling size, an adaptive sampling strategy rooted in confidence intervals has been proposed. By real‐time computation of margin of errors under varying confidence levels, simulations can be halted prior to reaching the preset sampling size. This method strikes a balance between reduced simulation time and maintained accuracy. The applicability and efficacy of the proposed method are further elucidated through a numerical example of a flight control system.
Multi‐level enhancement of structural behavior of bracing systems with coupling beams at floor level
Authors: Rahnama Mohammad Younes , Mirghaderi Seyed Rasoul , Bahaari Mohammad Reza 
Published: November 2023

SummaryDespite good rigidity, braced frames have weak nonlinear behavior and inadequate distribution of ductility in stories, which cause significant structural damage. In this research, a seismic resistant system called coupled concentrically braced frame (CCBF) is developed to enhance the performance of braced frames by coupling them with a beam. In this case, the coupling beams are the primary source for ductility of the system, and after their yielding in more severe earthquakes, the structure continues to benefit from the ductility of the braces as the secondary source; therefore, the system has two‐level behavior caused by different probable seismic excitations. In this case, in addition to maintaining the stiffness of the two concentrically braced frames, the coupling beams resist against the movement of the braced frames, and as a result, the stiffness of the system is increased. Therefore, lighter elements can be used to resist lateral loads. Linear and nonlinear analyses of CCBF, and its comparison with other braced frames, indicate that participation of the coupling beams provides an adequate stiffness and ductility. These frames have more stable nonlinear behavior than conventional ones and continue their nonlinear behavior even after fracture of coupling beams in severe earthquakes.
Progress and Perspectives on Promising Covalent‐Organic Frameworks (COFs) Materials for Energy Storage Capacity
Authors: Shahzad Umer , Marwani Hadi M. , Saeed Mohsin , Asiri Abdullah M. , Repon Md. Reazuddin , Althomali Raed H. , Rahman Mohammed M. 
Published: November 2023

AbstractIn recent years, a new class of highly crystalline advanced permeable materials covalent‐organic frameworks (COFs) have garnered a great deal of attention thanks to their remarkable properties, such as their large surface area, highly ordered pores and channels, and controllable crystalline structures. The lower physical stability and electrical conductivity, however, prevent them from being widely used in applications like photocatalytic activities and innovative energy storage and conversion devices. For this reason, many studies have focused on finding ways to improve upon these interesting materials while also minimizing their drawbacks. This review article begins with a brief introduction to the history and major milestones of COFs development before moving on to a comprehensive exploration of the various synthesis methods and recent successes and signposts of their potential applications in carbon dioxide (CO2) sequestration, supercapacitors (SCs), lithium‐ion batteries (LIBs), and hydrogen production (H2‐energy). In conclusion, the difficulties and potential of future developing with highly efficient COFs ideas for photocatalytic as well as electrochemical energy storage applications are highlighted.
Vocabulary Talk Moves: Using Language to Promote Word Learning
Authors: Anderson Blythe E. 
Published: November 2023

AbstractVocabulary knowledge plays a critical role in supporting text comprehension and broader learning across the school day. While school offers opportunities to build vocabulary knowledge, studies have shown that very little time is devoted to vocabulary instruction at the elementary level. This may be, in part, because educators commonly report being unsure of how to support students' vocabulary development. In this article, I present 10 vocabulary talk moves aligned with research on word learning and show how these moves were used in early‐elementary science lessons. Using these vocabulary talk moves can help educators promote word learning across the school day.
Peritoneopericardial hernia in dogs
Authors: Vasconcellos Vitória Magalhães , de Almeida Gabriel Moraes , Castañon Cecília Ribeiro , Leal Gabriela Ramos 
Published: November 2023

AbstractCongenital diaphragmatic peritoneopericardial hernia in dogs is attributed to a failure in the development of the transverse septum and may cause clinical signs. Its diagnosis is usually made through chest radiographic examination, where it is possible to detect cardiomegaly and the presence of abdominal organs in the pericardial sac. The aim of this study was to report two cases of peritoneopericardial hernia in asymptomatic bitches. The patients presented a lack of appetite and vomiting for different reasons, which led the veterinarians to request abdominal ultrasounds, which, in both cases, were suggestive of diaphragmatic peritoneopericardial hernia. In Case 1, a Doppler echocardiogram was also performed, and in Case 2, a contrast‐enhanced chest x‐ray confirmed the diagnosis. Although surgical treatment can be used, in the reported cases it was unnecessary. Therefore, the treatment chosen was conservative, maintaining the clinical follow‐up and keeping the patient's quality of life without surgical interventions.
p53 and RNA viruses: The tug of war
Authors: Pal Apala , Tripathi Sachin Kumar , Rani Priya , Rastogi Meghana , Das Saumitra 
Published: November 2023

AbstractHost factors play essential roles in viral infection, and their interactions with viral proteins are necessary for establishing effective pathogenesis. p53 is a host factor that maintains genomic integrity by controlling cell‐cycle progression and cell survival. It is a well‐known tumor suppressor protein that gets activated by various stress signals, thereby regulating cellular pathways. The cellular outcomes from different stresses are tightly related to p53 dynamics, including its alterations at gene, mRNA, or protein levels. p53 also contributes to immune responses leading to the abolition of viral pathogens. In turn, the viruses have evolved strategies to subvert p53‐mediated host responses to improve their life cycle and pathogenesis. Some viruses attenuate wild‐type p53 (WT‐p53) function for successful pathogenesis, including degradation and sequestration of p53. In contrast, some others exploit the WT‐p53 function through regulation at the transcriptional/translational level to spread infection. One area in which the importance of such host factors is increasingly emerging is the positive‐strand RNA viruses that cause fatal viral infections. In this review, we provide insight into all the possible mechanisms of p53 modulation exploited by the positive‐strand RNA viruses to establish infection.This article is categorized under:
RNA Interactions with Proteins and Other Molecules > Protein‐RNA Interactions: Functional Implications
Translation > Regulation
RNA in Disease and Development > RNA in Disease
Synthesis, structure, photoluminescence and magnetism of a series of cobalt‐lanthanide heterometallic complexes originated from 2,3‐dichlorobenzoate and 1,10‐phenanthroline
Authors: Shen Yue , Qu Tian‐Biao , Chen Fei‐Yue , Zhang Xin‐Yue , Liu Bin‐Qiu , Zhang Ju‐Wen 
Published: November 2023

AbstractA series of 3d–4f heterometallic complexes, namely [Ln2Co2(2,3‐DCB)10(phen)2] [Ln=Nd (1), Sm (2), Eu (3), Gd (4), Tb (5), Dy (6), Er (7)], were obtained through the self‐assembly reactions of Ln(NO3)3 ⋅ nH2O, Co(NO3)2 ⋅ 6H2O, 2,3‐dichlorobenzoic acid (2,3‐HDCB), NaOH and 1,10‐phenanthroline (phen) under solvothermal conditions. Their crystal structures were determined by single‐crystal X‐ray diffraction. They were also characterized by elemental analysis, FT‐IR, powder X‐ray diffraction (PXRD) and thermogravimetric analysis (TGA) and differential thermoanalysis (DTA). These seven complexes have the same molecular formula but different crystal structures. Complexes 1–3, 4 and 5 as well as 6 and 7 are crystallographically isomorphous, respectively. They all exhibit zero‐dimensional (0D) linear tetranuclear cluster structures. These 0D linear tetranuclear clusters can be further connected into a two‐dimensional (2D) supramolecular network via the extensive intermolecular π–π interactions between 2,3‐DCB and phen. The photoluminescent properties of 3, 5 and 6 and the magnetic properties of 1–2 and 4–7 were investigated. Complex 6 shows a slow magnetic relaxation behavior.
Dynamic instability characteristics of graphene‐reinforced cellular sandwich plates using a three‐variable isogeometric approach
Authors: Nguyen Nam V. 
Published: November 2023

AbstractThe primary objective of the current study is to introduce a potent computational model for analyzing the dynamic instability response of advanced sandwich plate models subjected to various time‐dependent in‐plane edge loadings. To achieve this, we employ the finite element formulations derived from high‐order shear deformation plate theory (HSDT) involving only three unknowns in conjunction with NURBS‐based isogeometric analysis. Additionally, advanced sandwich plate models are constituted by a middle layer with either a uniform or symmetric porosity distribution and two outer layers which are reinforced with graphene nanoplatelets (GNPs) to boost dynamic structural performance. The fundamental dynamic instability region of the sandwich plates can be then obtained by solving the Mathieu‐Hill equation using the Bolotin's method. Numerous numerical studies are performed to evaluate the impacts of numerous input parameters on the dynamic stability behavior of the cellular three‐layer plate structures. The crucial role of internal porosity distribution as well as GNPs reinforcement phase in enhancing the instability performance of the cellular structures is thoroughly evaluated. With the current results, this research provides important insights into the development and application of cellular materials as well as the GNPs for designing advanced engineering structures in the future.