bluuebunny/crossref_metadata_2025_split huggingface dataset:
Fabrication of Bioresorbable Barrier Membranes from Gelatin/Poly(4‐Hydroxybutyrate) (P4HB)
Authors: Yuan Shuaishuai , Chen Qi , Guo Manman , Xu Yongzhi , Wang Wanchun , Li Zhibo 
Published: April 2024

AbstractDental implant surgery is a procedure that replaces damaged or missing teeth with an artificial implant. During this procedure, guided bone regeneration (GBR) membranes are commonly used to inhibit the migration of epithelium and GBR at the surgical sites. Due to its biodegradability, good biocompatibility, and unique biological properties, gelatin (GT) is considered a suitable candidate for guiding periodontal tissue regeneration. However, GT‐based membranes come with limitations, such as poor mechanical strength and mismatched degradation rates. To confront this challenge, a series of GT/poly(4‐hydroxybutyrate) (P4HB) composite membranes are fabricated through electrospinning technology. The morphology, composition, wetting properties, mechanical properties, biocompatibility, and in vivo biodegradability of the as‐prepared composite membranes are carefully characterized. The results demonstrate that all the membranes present excellent biocompatibility. Moreover, the in vivo degradation rate of the membranes can be manipulated by changing the ratio of GT and P4HB. The results indicate that the optimized GT/P4HB membranes with a high P4HB content (75%) may be suitable for periodontal tissue engineering because of their good mechanical properties and biodegradation rate compatible with tissue growth.
Corrosion behavior of two Cu‐based shape memory alloys in NaCl solution: An electrochemical study
Authors: Spotorno Roberto , Fracchia Elisa , Krancher Christian , Krieg Romina , Theiß Ralf , Dültgen Peter , Pezzana Francesco Marco , Gobber Federico Simone , Grande Marco Actis , Piccardo Paolo 
Published: April 2024

AbstractThe corrosion behavior of two different Cu–Al–Mn–Ni alloys, pseudoelastic and pseudoplastic, was studied in a 0.6 M sodium chloride aqueous solution by monitoring the open circuit potential for 100 h and characterizing the resulting corrosion products. Electrochemical impedance spectroscopy analysis detected three processes related to the electrochemical double layer, a passive film and a diffusive contribution associated with the dissolution/precipitation of corrosion products. Potentiodynamic scans revealed a cathodically controlled corrosion mechanism and the presence of active–passive behavior at anodic potentials for both alloys studied. Polarization of the samples at selected potentials in the anodic branch allowed the investigation of the reactions involved, highlighting an improved corrosion resistance of the pseudoelastic alloy. The corrosion rates of the pseudoelastic and pseudoplastic alloys, after 100 h of immersion, were determined to be 0.007 and 0.011 mmpy, respectively. The post‐experiment characterization was carried out by means of scanning electron microscopy, micro‐Raman spectroscopy and X‐ray diffraction, supporting the electrochemical results.
The effect of partial recrystallization on the corrosion resistance of EN AW6082 forged components evaluated with different tests
Authors: Cecchel Silvia , Gelfi Marcello , Cornacchia Giovanna 
Published: April 2024

AbstractStructural automotive components are extensively made of aluminum alloy forgings, due to the elevate strength and low weight required. These products are frequently subjected to recrystallization. Recrystallization, often limited to surface or forging portions, is expected to reduce its tensile strength and corrosion resistance, but the literature is scarce on this subject. For a more comprehensive understanding, the present research studied the corrosion behavior of samples collected from EN AW 6082‐T6 forged components, designed to expose both recrystallized and not recrystallized surfaces to the corrosive environment. Several standardized corrosion tests (i.e., PV 1113, ISO 11846, and VW 96380) were applied to assess the most representative with respect to real field exposure. Tensile tests were performed in four different conditions, recrystallized and not recrystallized specimens in an as‐forged state or after corrosion. The recrystallization led to a reduction in tensile properties, but this gap was compensated by a higher corrosion resistance than the not recrystallized samples. Consequently, the mechanical properties became comparable after the corrosion test.
Corrosion and carburization of Ni3Al‐based superalloys in high‐temperature carbon dioxide
Authors: Zhang Hexin , Sun Yanwen , Zhao Yihan , Xie Youshui , Li Xiaopeng , Wang Yuqi , Zhao Chengzhi 
Published: April 2024

AbstractTo investigate the application of Ni3Al‐based superalloys in gas turbine cycle systems, this experiment exposed Ni3Al‐based superalloys to a 600°C/5 MPa environment with 99.995% pure CO2 gas. The corrosion and carburization behaviors and mechanisms were investigated in detail. The results reveal that with prolonged thermal exposure, the surface oxides of the samples tend to develop a continuous and homogeneous transition state alumina layer. This layer serves as a protective barrier, preventing the penetration and corrosion of external carbon‐containing and oxygen‐containing substances into the matrix. A small amount of carbon‐containing hazardous substances still penetrates the oxide layer or grain boundaries through highly diffusive pathways such as nanochannels, pores, and cracks, because the transition state of alumina is not completely dense. This leads to carbon deposition at the interface between the oxide layer and the matrix, where a mixture of alumina and amorphous carbon is formed at the interface.
First come, first served versus the draw: Perceived fairness in the new product purchase competition
Authors: Park Jihye , Kwon Hannah 
Published: April 2024

AbstractAlthough new products are not inherently scarce, consumers often display competitive behavior, eagerly queuing up to be among the first to obtain them. To manage the distribution of such sought‐after items, retailers determine which consumers get the opportunity to make a purchase. The question of which selection method ensures fair treatment of individual customers and enhances purchase experiences for a new product remains unresolved. Results of three experiments revealed that those in an ordered selection discipline were likely to be more time‐sensitive and perceive it as fairer than those in the random selection discipline when purchasing a new product. The difference in perceived fairness between the ordered selection discipline and the random selection discipline was more substantial, when the new product was highly scarce, due to increased selection uncertainty. However, the reverse effect was found when consumers were not selected to purchase a new product. The ordered selection discipline was perceived as less fair than the random selection discipline. The findings provide valuable insights into how selection disciplines shape consumers' perceptions of fairness during the purchase of a new product.
Electrochemical Formation of Ionic Porous Organic Polymers Based on Viologen for Electrochromic Applications
Authors: Shao Mingfa , Dong Juncheng , Lv Xiaojing , Liu Chunyan , Xia Minao , Cui Jiankun , Tameev Alexey , Ouyang Mi , Zhang Cheng 
Published: April 2024

AbstractThe systematic study of two ionic porous organic polymers (iPOPs) based on viologens and their first applications in the electrochromic field are reported. The viologen‐based iPOPs are synthesized by electrochemical polymerization with cyano groups, providing a simple and controllable method for iPOPs that solves the film preparation problems common to viologens. After the characterization of these iPOPs, a detailed study of their electrochromic properties is conducted. The iPOP films based on viologens structure exhibit excellent electrochromic properties. In addition, the resulting iPOP films show high sensitivity to electrolyte ions of different sizes in the redox process. Electrochemical and electrochromic data of the iPOPs explain this phenomenon in detail. These results demonstrate that iPOPs of this type are ideal candidates as electrochromic materials due to their inherent porous structures and ion‐rich properties.
Synthesis And Ecotoxicological Evaluation of Gelatin‐Urea Delivery System for Biostimulation Purposes
Authors: de Carvalho Fernanda Veloso , Junior Fernando Gomes de Souza , Filho Sérgio Thode , Alberton Michele Debiasi , Barcellos Ivonete O. , Gomes Selma Ferreira Leite 
Published: April 2024

AbstractIn this study, the behavior of slow‐release urea capsules is investigated for bioremediation purposes. The urea capsules (u/PUA/HG) are produced by an emulsion system (O/W) containing a double coating of polyurea (internal) and gelatin hydrogel (external), using for both toluene‐2,4‐diisocyanate (TDI) as a reagent. The slow‐release system are characterized by Fourier transform‐infrared spectroscopy by ATR, optical microscopy, swelling index test (%), and urea release test (%). Eco‐toxicological studies are carried out to evaluate the toxicity of composites using germination (and root growth) of lettuce seeds. Also, preliminary study is conducted based on assessed of the Pseudomonas aeruginosa microbial behavior in the presence of composites. The characterization results indicate the effective coating of the urea granules. However, the FTIR analysis reveals an excess of unreacted TDI in the u/PUA/HG sample. Furthermore, there is an observed inhibition of both root growth and germination that corresponds to the quantity of the sample and TDI used. Notably, there is a notable 70% increase in microbial growth compared to the control group after 48 h. Upon concluding the urea release test spanning 144 h, a significant 43% reduction is observed for u/PUA/HG at 24°C. Additionally, there is a delay of 119 h in the total release time at 36°C, when compared to u/PUA. Collectively, the outcomes of this study strongly suggest the potential of u/PUA/HG as a bio‐stimulant, particularly in its effect on P. aeruginosa growth. These findings highlight its promising application as a bioremediator in the future.
A Data Mining Study of Zinc Oxide Nanostructures Utilization in Drug Delivery Nanosystems
Authors: Valladão Viviane Silva , da Silva Emerson Oliveira , Souza Fernando Gomes 
Published: April 2024

AbstractThe present investigation offers a thorough bibliometric exploration spotlighting the pivotal utilization of zinc oxide nanostructures, encompassing both zero‐dimensional (0D) nanoparticles and one‐dimensional (1D) nanostructures, within the realm of nanotechnology‐driven drug delivery systems. This analysis particularly illuminates the distinctive potential of these nanostructures in the cancer therapy context, not merely as carriers and deliverers of pharmaceutical agents, but as entities capable of selectively inducing apoptosis in cancer cells through the orchestrated generation of reactive oxygen species (ROS). Recent research endeavors notably underscore the application prospects of ZnO nanostructures in domains like DNA cleavage, bioimaging, and agricultural defense mechanisms. Moreover, the study elucidates the pronounced enhancement in solubility and biocompatibility that these nanostructures bring about when harmoniously integrated into polymeric nanocomposites. Concomitantly, the involvement of polymers in this symbiotic system is unveiled, wherein they play a multifaceted role in dictating release selectivity, thereby facilitating targeted and efficacious interactions with tissues. Functionally engineered polymeric nanocomposites emerge as promising candidates for targeted delivery modalities in cancer treatment, demonstrating an affinity for specific cell receptors and exhibiting enhanced cellular uptake within the size range of 100–200 nm. The study unearths robust associations among pivotal research terminologies through an exhaustive analysis of Link Strength Between Items (LSBI), culminating in the presentation of a cogent map delineating the evolving trends and forthcoming trajectories in this dynamic domain. In summation, this all‐encompassing bibliometric inquiry serves as a poignant testament to the prodigious potential of zinc oxide nanostructures in the realm of forthcoming nanotechnology‐driven drug delivery paradigms.
Development, Characterization, and In‐Vitro Evaluation of Niosomal Transdermal Patch of Lamotrigine Drug
Authors: Sagare Abhay , Yadav Reenu , Gautam Vinod , Yadav Savita , Malviya Jitendra , Sawale Jyotiram 
Published: April 2024

AbstractNiosomes are self‐assembled vesicular nanocarriers obtained by hydration of synthetic surfactants and appropriate amounts of cholesterol or other amphiphilic molecules. The transdermal route of drug administration ensures systemic delivery of drug by applying a drug formulation onto intact and healthy skin thus ensuring sustained drug release and bypass of first‐pass metabolism. Thus, the aim of the study is to develop antiepileptic drugs loaded niosomal transdermal patches an effective substitute for the existing maintenance therapies used for controlling epileptic seizures. In this study, transdermal patch formulation is prepared with optimized niosomal formulation and optimized PVA and PVP polymers, plasticizers, and penetration enhancers by solvent casting method. These patches are characterized for physico‐chemical parameters such as folding endurance, tensile strength, swelling ratio, percentage drug content, percentage moisture content, water vapor transmission ratio, and in‐vitro diffusion study.
Molecular Modeling and Spectroscopic Investigation of Tyramine and Its Monohydrate Cluster: A DFT Approach
Authors: Kushal M. , Yadav Tarun , Chakroborty S. , Vishwkarma A. K. , Pandey F. P. , Panda Amiya Ranjan , Khatarkar Kiran , Khatarkar Manohar , Chaudhary Shubham 
Published: April 2024

AbstractThis study has performed molecular modeling, vibrational dynamics, and thermodynamics of tyramine neurotransmitter and its monohydrate cluster in gas phase. All theoretical calculations for tyramine and its monohydrate cluster are performed at DFT/B3LYP/6‐31++G(d,p) level to optimize the electronic structures and calculation of vibrational frequencies. Most of the vibrational frequencies have been found in good agreement with the experimentally reported IR and Raman frequencies. However, some have been modified. The presence of water monomer decreased highest molecular orbital–lowest unoccupied molecular orbital (HOMO–LUMO) energy gap of tyramine by 0.07 eV. Themodynamics calculations reveal that thermal energy and specific heats in both the tyramine and its monohydrate clusters are predominantly contributed by vibrational motions while entropy shows only 28% and 26% vibrational contribution in tyramine and its monohydrate cluster, respectively.
Compact filtering power divider for mm‐wave applications using integrated passive device technology
Authors: Seo Donghyuk , Jung Sunghun , Kim Young‐Joon 
Published: April 2024

AbstractWe present a compact, filtering power divider (FPD) using integrated passive device technology (IPD) for mm‐wave applications. Our proposed FPD design integrates quarter‐wavelength coupled‐resonator bandpass filters with a Wilkinson power divider, using size reduction techniques. Coupled coplanar waveguides provide excellent coupling while occupying a small area, and metal‐insulator‐metal capacitors offer the required λ/4 phase shift without length extension. The center frequency of the filtering power divider/combiner (FPD/C) is located at 30‐GHz. We demonstrate our FPD design by fabricating four prototypes with parameter variations. The insertion loss, fractional bandwidth, and size of the FPD/C designed in this study are from 2.56 to 3.3 dB, from 9.67% to 19.4%, and from 0.592 to 0.220‐mm2, respectively. In addition, the return loss of all models at the center frequency is 28.5 dB or more, and the isolation is 16.6 dB or more.
Wideband dual‐polarized rasorber design with genetic algorithm synthesis
Authors: Özkan Akın , Saka Birsen 
Published: April 2024

AbstractIn this letter, an 11 GHz centered wideband absorptive frequency selective surface (FSS) design is presented. The absorptive FSS is dual polarized, and it has wide transmission band and a wide absorption band at the lower frequency side of the transmission band. An octagon shape with parallel microstrips toward center connected with lumped element resistors at the edges is proposed for the resistive layer unit element. Also, a multilayer octagon patch and aperture resonator are proposed for the wideband bandpass layer. As an alternative design method, the unit element of resistive layer of absorptive FSS is synthesized by a genetic algorithm code successfully. Genetic algorithm synthesis provides straightforward synthesis process compared to conventional method. Designed absorptive FSS is manufactured and frequency response is measured with WR‐90 waveguide setup. The measurement result of 1 dB transmission bandwidth is between 9.43 and 12.50 GHz with a minimum insertion loss of 0.65 dB.
The mediating role of resilience between emotional intelligence and academic procrastination in nursing undergraduates: A cross‐sectional study
Authors: Zhang Bo , Xiao Qigui , Gu Jingtao , Zhang Weifan , Lu Huapeng , Zhang Jiaoqiong , Lang Lan , Sun Yan , Ma Qingyong , Han Liang 
Published: April 2024

AbstractAimTo investigate the relationship among emotional intelligence (EI), resilience and academic procrastination (AP), and provide suggestions for the development of targeted intervention strategies and lowering of AP level of nursing undergraduates.DesignA cross‐sectional study.MethodsThree provincial universities offering nursing courses in China were investigated in this study. A convenience sample of 256 nursing undergraduates from May 2021 to September 2021 were recruited, with a response rate of 91.4%. Data were collected using face‐to‐face interviews. The survey tools included the General Information Questionnaire, Academic Procrastination Scale, Emotional Intelligence Scale and Resilience Scale. IBM SPSS v19.0 and Amos 22.0 were used for data analysis.ResultsThe AP of sampled nursing undergraduates was at the middle level (54.4 ± 21.5). The AP of nursing undergraduates was negatively correlated with EI and resilience. Moreover, the analysis on the mediating role of resilience via structural equation model showed a good fit, with χ2/df = 2.34, RMSEA = 0.07, CFI = 0.99, GFI = 0.95, TLI = 0.98.Patient or Public ContributionNo patient or public contribution.
Static and dynamic mechanical characterization and thermal analysis for multi‐ply structure of woven nettle (Girardinia diversifolia) reinforced poly(lactic acid) biocomposites
Authors: Nandi Parna , Das Dipayan 
Published: April 2024

AbstractPoly(lactic acid) fiberwebs and multi‐ply assemblies of nettle woven reinforcement are used to develop a series of nettle/PLA biocomposites with different reinforcement orientations. The tensile strength, flexural strength, impact strength, and thermal properties of the biocomposites are found to improve by piling nettle fabrics and are also found to depend strongly on the piling architecture and the test direction. It is possible to obtain a biocomposite with higher degrees of isotropy and enhanced mechanical properties by using cross‐ply laminates. The three‐layered woven fabric reinforced PLA biocomposite with a reinforcement orientation 0°/45°/90° shows the best results among all the biocomposites developed in this study. The tensile strength, Young's (tensile) modulus, flexural strength, impact strength, storage modulus, and loss modulus of the biocomposite are found as 55.25 MPa, 6.30 GPa, 85.83 MPa, 63.74 J/m2, 10.08 GPa, and 0.75 GPa, respectively. In this biocomposite, a fair adhesion between matrix and reinforcement is noticed, and this is justified by retardation of crack propagation as well as by substantial energy dissipation. The thermal stability of the biocomposite does not get effected much, but the percent crystallinity increases by 25.84%. The degradation kinetics and the activation energy of the biocomposite are determined through a differential fitting of Arrhenius model. The soil burial test reveals 15.06% of weight loss and 50.56% strength loss for this biocomposite just after 20 days of burial under soil.Highlights
Multi‐ply architecture of woven fabric reinforcement in nettle/PLA biocomposites.
Nearly isotropic biocomposite through angle‐ply orientation of reinforcement.
Biocomposite with remarkable static and dynamic mechanical properties.
Augmented kinetic parameters through model fitting of Arrhenius equation.
Biocomposite with excellent thermo‐recyclability and biodegradability.
Mechanism of plasma chemistry in CO2 hydrogenation using a dielectric barrier discharge reactor
Authors: Zhang Xuming , Shan Yun , Sun Zhi , Pan Hua , Zhang Liancheng , Zhu Zuchao , Feng Fada , Han Jingyi , Li Kai 
Published: April 2024

AbstractPlasma‐induced CO2 hydrogenation process has received much attention, while the related plasma chemistry has not been profoundly explored. Herein, electron‐induced and thermochemical effects on CO2 hydrogenation in a dielectric barrier discharge reactor were investigated. The temperatures for the discharge pattern transition for CO2/H2, CO2/H2/N2, CO2/H2/Ar, and CO2/H2/He mixtures were 623, 623, 600, and 600 K, respectively. CO2 conversion was controlled by electron‐induced reactions and was sensitive to discharge pattern and electron density but not electron energy. In contrast, product formation was governed by the thermo‐induced chemistry. These results are useful for a better understanding of plasma‐induced CO2 hydrogenation.
Breakeven yields for cultivated morel mushrooms (Morchella spp.) in the US North Central region
Authors: Lee Seo Woo , Swinton Scott M. , Bonito Gregory 
Published: April 2024

Societal Impact StatementMorels (Morchella spp.) are specialty mushrooms that fetch high prices from wild‐foraged or indoor grown suppliers. Outdoor cultivation could expand availability and diversify morel crops. Participatory research trials in the United States during 2021–2023 resulted in low, uneven yields. Cost accounting reveals that in 2023, a producer needed to achieve an average morel yield of 0.16 lb/ft of row to break even. This threshold was sensitive to prices and labor costs. While these findings are preliminary due to a small sample and experimental conditions, they establish baseline indicators for the yields needed for outdoor morel cultivation to break even financially.