bluuebunny/crossref_metadata_2025_split huggingface dataset:
Family migration in China: A longitudinal analysis of couples' migration behaviour
Authors: Zhu Min , Vidal Sergi 
Published: January 2024

AbstractThis article addresses internal migration behaviour in the context of two‐gender‐couple households in contemporary China. Against the backdrop of increasing female education in a society where ideals in the gendered division of labour prevail, this study assesses the role of partners' education in regards to a couple's migration behaviour. Considering education to be a key resource in a couple's negotiations, we test hypotheses on gender symmetry and asymmetry of a partner's resources with regard to a couple's relocation. Additionally, we assess how the role of partners' resources varies across populations with rural and urban backgrounds, and acknowledge persistent barriers to migration due to household registration policies (Hukou) and the associated disadvantages faced by rural migrants and their children. For our analyses, we deploy longitudinal couple‐dyadic data from the China Family Panel Studies (2010–2018) and estimate couples' inter‐county moves using discrete‐time event history models. Our results suggest that couple relocations are associated with higher levels of the male partner's education, and not with the female partner's education. We do not find that partners' gender ideology moderates these associations. The role of the male partner's education was found to be more relevant in couples' relocations for those with an agricultural household registration. Our research contributes importantly to debates on persistent gender inequality and urban–rural divides in China, and how these factors permeate migration behaviour.
Asymptotic tracking control of uncertain MIMO nonlinear systems with extended condition for controllability
Authors: Zhou Bing , Huang Xiucai , Song Yongduan , Shen Zhixi 
Published: January 2024

AbstractFor uncertain multiple‐inputs multi‐outputs nonlinear systems, it is nontrivial to achieve asymptotic tracking due to the intrinsic coupling among inputs, while the controllability conditions in most existing methods are rather restrictive or even impractical especially when unexpected actuator faults are involved. In this article, we focus on extending such controllability condition by resorting to the existence (instead of a priori knowledge) of some feasible auxiliary matrix, upon which a robust adaptive control scheme is first presented in the absence of actuator faults that is not only able to achieve asymptotic tracking even in the presence of non‐parametric uncertainties with all the closed‐loop signals globally ultimately uniformly bounded, but also able to deal with a larger class of system models. Furthermore, for the case with intermittent actuator faults, we develop a fault‐tolerant control scheme with extended condition for controllability that is able to accommodate such faults automatically without using any fault detection or fault diagnosis unit. The effectiveness and benefits of the proposed method are verified via simulation on robotic systems.
Exploring the nexus between the barriers and drivers for sustainable smart cities in developing countries: The case of Nigeria
Authors: Bello Abdulkabir Opeyemi , Okanlawon Taofeek Tunde , Wuni Ibrahim Yahaya , Arogundade Suhaib , Oyewobi Luqman Oyekunle 
Published: January 2024

AbstractAmidst the rapid urbanisation and increasing calls for sustainable development, this study examines the key drivers and barriers influencing sustainable smart city initiatives in Nigeria. By employing a quantitative approach, the research amalgamates insights from diverse professionals, integrating descriptive statistics, exploratory factor analysis, and Spearman rank correlation analysis to illuminate the intricate landscape of sustainable smart city development within the Nigerian context. The findings underscore the interconnected nature of various factors, underscoring the imperative of an all‐encompassing approach that synergistically incorporates infrastructure integration, environmental sustainability, efficient governance, social inclusivity, and economic innovation. Furthermore, identifying specific barriers, including challenges related to integrated urban transformation, socioeconomic equity, and governance and infrastructure, highlights the critical need for precise interventions to surmount these obstacles. The implications and recommendations derived from this study emphasise the pivotal role of collaborative endeavours among diverse stakeholders, accentuating the significance of inclusive decision‐making processes, sustainable environmental practices, and equitable economic expansion. The insights gleaned from this research serve as an invaluable resource for policymakers and urban planners, providing a robust groundwork for informed policy formulation and strategic planning to guide sustainable smart city development in Nigeria and other developing nations.
Immuno-Allergic Dermatoses in Children of 0–5 Years Old in Kinshasa Hospital Environment
Authors: Seudjip Lydie Joelle Nono , Koudoukpo Christiane , Traore Adama , Bunga Paulo Muntu 
Published: January 2024

Abstract

Introduction
The frequency of immuno-allergic dermatoses (IAD) is gradually overtaking that of infectious dermatoses in sub-Saharan Africa. The aim of this study was to identify the epidemioclinical profile and the determinants of IAD in children of 0–5 years old at the University Clinics of Kinshasa (UCK).

Methods
This was a documentary and descriptive study that focused on children from 0 to 5 years old with IAD, over an 11-year period from 2011 to 2021. Included were children from 0 to 5 years old received in consultation the first time for IAD. The parameters of interest were sociodemographic and clinical. Data was entered and analysed using Excel 2010 software. Ethical and deontological considerations were respected. The value of p &lt; 0.05 was the significance threshold.

Results
The frequency of IAD in children aged 0–5 years in the UCK was 17.8%, with a high peak between 2 and 3 years (41.9%) and a female predominance at 54.4%, which represents a sex ratio of 0.8. Prurigo strophulus (42.3%) and atopic dermatitis (22.8%) were the most common IAD. In multivariate analysis, the determinants were significantly the age group of 4–5 years, the rainy season and the child's environment.

Conclusion
Prurigo strophulus and atopic dermatitis were the most frequent IAD in children aged 0–5 years. A holistic care (medical, ecological) of children and their parents may reduce morbidity related to IAD for this age.
Tetrafluoroterephthalonitrile as an anion‐π donor: theoretical evaluation and application to anion recognition
Authors: Zayene Olfa , Plais Romain , Rolhion Laurie , Bourdreux Flavien , Pieters Grégory , Gaucher Anne , Clavier Gilles , Cœuret Anabelle , Salpin Jean‐Yves , Prim Damien 
Published: January 2024

AbstractThe ability of perfluorinated terephthalonitrile to act as an anion‐π donor fragment in anion receptors is evaluated. New receptors combining an urea and a perfluorinated terephthalonitrile motif into a single architecture have been designed and synthesized. Their molecular recognition properties towards Cl−, Br− and I−, have been studied in solution by means of 1H and 19F NMR as well as photophysical experiments. A complementary electrospray ionization‐tandem mass spectrometry study confirmed the ranking of recognition properties between the receptors. A further theoretical evaluation of binding properties confirmed the association constant trend and suggests a main contribution of the urea motif weakly complemented by a η2‐type anion‐π interaction.
Improved Physical Properties of Green Fabricated ZnO Thin Films by Annealing Temperature
Authors: Handani Sri , Putra Indra Julika , Emriadi Emriadi , Dahlan Dahyunir , Arief Syukri 
Published: January 2024

AbstractZnO thin films were prepared by sol‐gel spin coating on a glass substrate via green synthesis using Uncaria gambir leaf extract. The deposited films were characterized for structural, morphological, and optical properties at various annealing temperatures (400, 500, and 600 °C). The ZnO film without annealing shows an amorphous structure, and after annealing, it shows a hexagonal wurtzite structure with a dominant (101) peak. The crystallinity of the films increases up to 500 °C. The crystallite size shows a maximum value (27 nm) at 500 °C. Also, a flat, smooth, uniform wrinkle and the homogenous surface of ZnO thin films are shown at 500 °C. The gambir extract prevents the segregation of crystallites until 500 °C. The transparency was over 80 % in the visual region for all annealed films, and the energy bandgap decreased to 3.81 eV with increasing the annealing temperature up to 500 °C.
Advancing Pyrrole Synthesis through DDQ Catalysis: A Comprehensive Research Incorporating DFT, ADMT, and Molecular Docking Analysis
Authors: Serdaroğlu Goncagül , Uludağ Nesimi , Üstün Elvan 
Published: January 2024

AbstractThe construction of pyrroles is an important heterocyclic group comprising many compounds with interesting properties that have led to numerous applications in various fields. We delineate a new synthetic method for the rapid construction of tree‐substituted pyrroles from readily available ketoximes as starting materials and also a new mechanism and method has been proposed. It is presented that substituted pyrroles were efficiently synthesized in high yields (up to 81 % yield) through the cyclization reaction of starting ketoximes mediated by 2,3‐dichlor‐5,6‐dicyanobenzoquinone (DDQ). Utilizing this protocol various pyrrole derivatives were synthesized from diethyl acetylene dicarboxylate (DEAD). We then developed the dehydrogenation reaction mechanism of this formation, also studied in detail, also all synthesized compounds were analyzed in detail by spectroscopic techniques (FT‐IR, 1H NMR, 13CNMR) which were compared with the computational data estimated at B3LYP/6‐311G** level. The thermochemical and electronic properties of the pyrroles were evaluated after optimizing and then confirming the equilibrium structures. ADMT scores were also considered to estimate/elucidate the possible bioavailability tendencies as well as the toxicity. In addition, the interactions of the optimized molecules were evaluated by molecular docking methods against BSA “Bovine Serum Albumin” and LIF “Leukemia Inhibitory Factor”. The results obtained from this study will ideally provide a fundamental source in contemporary drug design in terms of both the key electronic properties underlying the possible reactivity features and toxicity.
Synthesis and Biological Evaluation of New Benzochromenopyrimidines for the Therapy of Colon and Lung Cancer
Authors: Choura Emna , El Ghali Fares , Bernard Paul J , Marco‐Contelles José , Aifa Sami , Ismaili Lhassane , Chabchoub Fakher 
Published: January 2024

AbstractHerein we report the synthesis of ten newly substituted 3‐phenyl‐5‐aryl‐3,5‐dihydro‐4H‐benzo[6,7]chromeno[2,3‐d]pyrimidin‐4,6,11‐triones (“benzochromenopyrimidines”) in a one‐step reaction, by reacting ethyl 2‐amino‐4‐aryl‐5,10‐dioxo‐5,10‐dihydro‐4H‐benzo[g]chromene‐3‐carboxylates with aniline, and triethyl orthoformate, under acidic catalyst and solvent‐free conditions. These benzochromenopyrimidines were submitted to biological evaluation for in vitro anti‐cancer activity, several derivatives showing higher activity than commonly used chemotherapeutic agents such as oxaliplatin, 5‐fluorouracil, and paclitaxel. In particular, the 5‐(2‐Methoxyphenyl)‐3‐phenyl‐3,5‐dihydro‐4H‐benzo[6,7]chromeno[2,3‐d]pyrimidine‐4,6,11‐trione was identified as the most potent inhibitor among all the new ligands, showing significant cytotoxic activity against all the cancer cell lines tested [human colon cancer cell lines, LoVo and HCT‐116; human lung cancer cells (A549 line)], as evidenced by the significant decrease in IC50 values, while maintaining low cytotoxicity against normal cells. These promising results suggest that this compound deserves further investigation as a potential hit compound for the development of a selective anticancer drug in cancer therapy.
2Memristor‐1Capacitor Integrated Temporal Kernel for High‐Dimensional Data Mapping
Authors: Shim Sung Keun , Jang Yoon Ho , Han Janguk , Jeon Jeong Woo , Shin Dong Hoon , Kim Yeong Rok , Han Joon‐Kyu , Woo Kyung Seok , Lee Soo Hyung , Cheong Sunwoo , Kim Jaehyun , Seo Haengha , Shin Jonghoon , Hwang Cheol Seong 
Published: January 2024

AbstractCompact but precise feature‐extracting ability is core to processing complex computational tasks in neuromorphic hardware. Physical reservoir computing (RC) offers a robust framework to map temporal data into a high‐dimensional space using the time dynamics of a material system, such as a volatile memristor. However, conventional physical RC systems have limited dynamics for the given material properties, restricting the methods to increase their dimensionality. This study proposes an integrated temporal kernel composed of a 2‐memristor and 1‐capacitor (2M1C) using a W/HfO2/TiN memristor and TiN/ZrO2/Al2O3/ZrO2/TiN capacitor to achieve higher dimensionality and tunable dynamics. The kernel elements are carefully designed and fabricated into an integrated array, of which performances are evaluated under diverse conditions. By optimizing the time dynamics of the 2M1C kernel, each memristor simultaneously extracts complementary information from input signals. The MNIST benchmark digit classification task achieves a high accuracy of 94.3% with a (196×10) single‐layer network. Analog input mapping ability is tested with a Mackey‐Glass time series prediction, and the system records a normalized root mean square error of 0.04 with a 20×1 readout network, the smallest readout network ever used for Mackey‐Glass prediction in RC. These performances demonstrate its high potential for efficient temporal data analysis.
Monolithic Microparticles Facilitated Flower‐Like TiO2 Nanowires for High Areal Capacity Flexible Li‐Ion Batteries
Authors: Luo Li , Liang Kui , Khanam Zeba , Yao Xincheng , Mushtaq Muhammad , Ouyang Ting , Balogun M.‐Sadeeq , Tong Yexiang 
Published: January 2024

AbstractFlexible lithium‐ion batteries (FLIBs) are intensively studied using free‐standing transition metal oxides (TMOs)‐based anode materials. However, achieving high areal capacity TMO‐based anode materials is yet to be effectively elucidated owing to the poor adhesion of the active materials to the flexible substrate resulting in low active mass loading, and hence low areal capacity is realized. Herein, a novel monolithic rutile TiO2 microparticles on carbon cloth (ATO/CC) that facilitate the flower‐like arrangement of TiO2 nanowires (denoted ATO/CC/OTO) is demonstrated as high areal capacity anode for FLIBs. The optimized ATO/CC/OTO anode exhibits high areal capacity (5.02 mAh cm−2@0.4 mA cm−2) excellent rate capability (1.17 mAh cm−2@5.0 mA cm−2) and remarkable cyclic stability (over 500 cycles). A series of morphological, kinetic, electrochemical, in situ Raman, and theoretical analyses reveal that the rational phase boundaries between the microparticles and nanowires contribute to promoting the Li storage activity. Furthermore, a 16.0 cm2 all‐FLIB pouch cell assembled based on the ATO/CC/OTO anode and LiNiCoMnO2 cathode coated on ATO/CC (ATO/CC/LNCM) exhibits impressive flexibility under different folding conditions, creating opportunity for the development of high areal capacity anodes in future flexible energy storage devices.
Tailoring the Heterogeneous Structure of Macro‐Fibers Assembled by Bacterial Cellulose Nanofibrils for Tissue Engineering Scaffolds
Authors: Wu Nihuan , Meng Si , Li Zhen , Fang Jie , Qi Cheng , Kong Tiantian , Liu Zhou 
Published: January 2024

AbstractBacterial cellulose/oxidized bacterial cellulose nanofibrils (BC/oxBCNFs) macro‐fibers are developed as a novel scaffold for vascular tissue engineering. Utilizing a low‐speed rotary coagulation spinning technique and precise solvent control, macro‐fibers with a unique heterogeneous structure with dense surface and porous core are created. Enhanced by a polydopamine (PDA) coating, these macro‐fibers offer robust mechanical integrity, high biocompatibility, and excellent cell adhesion. When cultured with endothelial cells (ECs) and smooth muscle cells (SMCs), the macro‐fibers support healthy cell proliferation and exhibit a unique spiral SMC alignment, demonstrating their vascular suitability. This innovative strategy opens new avenues for advances in tissue engineering.
N, O‐Doped Walnut‐Like Porous Carbon Composite Microspheres Loaded with Fe/Co Nanoparticles for Adjustable Electromagnetic Wave Absorption
Authors: Dou Yuye , Zhang Xiangyi , Zhao Xinbo , Li Xia , Jiang Xiaohui , Yan Xuefeng , Yu Liangmin 
Published: January 2024

AbstractThis study addresses the challenge of designing simple and environmentally friendly methods for the preparation of effective electromagnetic wave (EMW) absorbing materials with tailored microstructures and multi‐component regulation. N, O doped walnut‐like porous carbon composite microspheres loaded with FeCo nanoparticles (WPCM/Fe–Co) are synthesized through high‐temperature carbonization combined with soap‐free emulsion polymerization and hydrothermal methods, avoiding the use of toxic solvents and complex conditions. The incorporation of magnetic components enhances magnetic loss, complementing dielectric loss to optimize EMW attenuation. The unique walnut‐like morphology further improves impedance matching. The proportions of Fe and Co components can be adjusted to regulate the material's reflection loss, thickness, and bandwidth, allowing for fine‐tuning of absorption performance. At a low filling ratio (16.7%), the optimal WPCM/Fe–Co composites exhibit a minimum reflection loss (RLmin) of −48.34 dB (10.33 GHz, 3.0 mm) and an overall effective absorbing bandwidth (EAB) covering the entire C bands, X bands, and Ku bands. This work introduces a novel approach to composition regulation and presents a green synthesis method for magnetic carbon composite absorbers with high‐performance EMW absorption at low loading.
Optoelectronic Synapse Based on 2D Electron Gas in Stoichiometry‐Controlled Oxide Heterostructures
Authors: Lee Minkyung , Kim Youngmin , Mo Sang Hyeon , Kim Sungkyu , Eom Kitae , Lee Hyungwoo 
Published: January 2024

AbstractEmulating synaptic functionalities in optoelectronic devices is significant in developing artificial visual‐perception systems and neuromorphic photonic computing. Persistent photoconductivity (PPC) in metal oxides provides a facile way to realize the optoelectronic synaptic devices, but the PPC performance is often limited due to the oxygen vacancy defects that release excess conduction electrons without external stimuli. Herein, a high‐performance optoelectronic synapse based on the stoichiometry‐controlled LaAlO3/SrTiO3 (LAO/STO) heterostructure is developed. By increasing La/Al ratio up to 1.057:1, the PPC is effectively enhanced but suppressed the background conductivity at the LAO/STO interface, achieving strong synaptic behaviors. The spectral noise analyses reveal that the synaptic behaviors are attributed to the cation‐related point defects and their charge compensation mechanism near the LAO/STO interface. The short‐term and long‐term plasticity is demonstrated, including the paired‐pulse facilitation, in the La‐rich LAO/STO device upon exposure to UV light pulses. As proof of concepts, two essential synaptic functionalities, the pulse‐number‐dependent plasticity and the self‐noise cancellation, are emulated using the 5 × 5 array of La‐rich LAO/STO synapses. Beyond the typical oxygen deficiency control, the results show how harnessing the cation stoichiometry can be used to design oxide heterostructures for advanced optoelectronic synapses and neuromorphic applications.
Controllable Electronic Transfer Tailoring d‐band Center via Cobalt–Oxygen‐Bridged Ru/Fe Dual‐sites for Boosted Oxygen Evolution
Authors: Zhu Yu , Zhang Shunqiang , Chen Runzhe , Wang Zichen , Wu Wei , Jiang Haoran , Chen Heyuan , Cheng Niancai 
Published: January 2024

AbstractRational tailoring of the electronic structure at the defined active center of reconstructed metal (oxy)hydroxides (MOOH) during oxygen evolution reaction (OER) remains a challenge. With the guidance of density functional theory (DFT), herein a dual‐site regulatory strategy is reported to tailor the d‐band center of the Co site in CoOOH via the controlled electronic transfer at the Ru─O─Co─O─Fe bonding structure. Through the bridged O2− site, electrons are vastly flowed from the t2g‐orbital of the Ru site to the low‐spin orbital of the Co site in the Ru–O–Co coordination and further transfer from the strong electron–electron repulsion of the Co site to the Fe site by the Co–O–Fe coordination, which balancing the electronic configuration of Co sites to weaken the over‐strong adsorption energy barrier of OH* and O*, respectively. Benefiting from the highly active of the Co site, the constructed (Ru2Fe2Co6)OOH provide an extremely low overpotential of 248 mV and a Tafel slope of 32.5 mV dec−1 at 10 mA cm−2 accompanied by long durability in alkaline OER, far superior over the pristine and Co–O–Fe bridged CoOOH catalysts. This work provides guidance for the rational design and in‐depth analysis of the optimized role of metal dual‐sites.
Thiol‐Ene Click Reaction in Constructing Liquid Separation Membranes for Water Treatment
Authors: Yu Wei , Lu Xinyi , Xiong Liping , Teng Jiaheng , Chen Cheng , Li Bisheng , Liao Bao‐Qiang , Lin Hongjun , Shen Liguo 
Published: January 2024

AbstractIn the evolving landscape of water treatment, membrane technology has ascended to an instrumental role, underscored by its unmatched efficacy and ubiquity. Diverse synthesis and modification techniques are employed to fabricate state‐of‐the‐art liquid separation membranes. Click reactions, distinguished by their rapid kinetics, minimal byproduct generation, and simple reaction condition, emerge as a potent paradigm for devising eco‐functional materials. While the metal‐free thiol‐ene click reaction is acknowledged as a viable approach for membrane material innovation, a systematic elucidation of its applicability in liquid separation membrane development remains conspicuously absent. This review elucidates the pre‐functionalization strategies of substrate materials tailored for thiol‐ene reactions, notably highlighting thiolation and introducing unsaturated moieties. The consequential implications of thiol‐ene reactions on membrane properties—including trade‐off effect, surface wettability, and antifouling property—are discussed. The application of thiol‐ene reaction in fabricating various liquid separation membranes for different water treatment processes, including wastewater treatment, oil/water separation, and ion separation, are reviewed. Finally, the prospects of thiol‐ene reaction in designing novel liquid separation membrane, including pre‐functionalization, products prediction, and solute‐solute separation membrane, are proposed. This review endeavors to furnish invaluable insights, paving the way for expanding the horizons of thiol‐ene reaction application in liquid separation membrane fabrication.