bluuebunny/crossref_metadata_2025_split huggingface dataset:
Factors Influencing Instrumental Assisted Births: A Retrospective Study
Authors: Evans Madison M. , Nanu Douglas P. , Alemayehu Gabriel , Rangel Teresa 
Published: October 2024

ABSTRACTObjectiveTo evaluate the rate of instrument‐assisted deliveries among parturient patients hospitalized for live, vaginal births across 5 years and test for factors influencing the use of this procedure.MethodsHospitalizations of pregnant people age 18 years or older presenting for a live vaginal birth between October 2017 and 2022 were included for gestational ages between 35.0 and 42.0 weeks. The outcome measured the presence of neonatal instrument‐assisted birth utilizing forceps or a vacuum. Independent variables tested as influencing the outcome included hospitalization year, maternal age, BMI, parity, gestational age, admission to birth time, labor induction, neonate weight, intrapartum analgesia, gestational diabetes and preeclampsia. Descriptive, bivariate and multivariate statistics were conducted in Excel to compare those with and without instrument‐assisted birth.ResultsThe descriptive analysis demonstrated that cases receiving an instrument‐assisted birth had significantly longer admission to birth time (17.8 h [SD = 11.0] vs. 14.1 h [SD = 14.5], p < 0.001) and received intrapartum analgesics as follows: continuous labor epidural (92.1% vs. 80.6%, p < 0.001), opioids (12.6% vs. 5.9%, p < 0.001) and acetaminophen (20.3% vs. 11.1%, p < 0.001). Multivariate logistic regression model demonstrated that intrapartum analgesics were significantly associated with instrument‐assisted births as follows: continuous labor epidural (OR 2.12, 95% CI 1.63−2.75), opioids (OR 1.37, 95% CI 1.10−1.72) and acetaminophen (OR 1.50, 95% CI 1.24−1.80). Conversely, multiparous status demonstrated decreased odds of having an instrument‐assisted birth (OR 0.32, 95% CI 0.27−0.37).ConclusionAmong pregnant patients, having a longer admission to birth time or receiving an intrapartum analgesic (continuous labor epidural, opioids and/or acetaminophen) was significantly associated with an instrument‐assisted birth, whereas multiparity reduced the odds of the procedure.
Reduced ligninase‐cellulase ratio enhances soil carbon sequestration following afforestation of agricultural land
Authors: Wen Shuhai , Yu Dailin , Feng Jiao , Liu Yu‐Rong 
Published: October 2024

AbstractIntroductionAfforestation of agricultural land is one of the most essential approaches to mitigate climate change by enhancing the sequestration of atmospheric carbon (C) into the soil. C‐degrading extracellular enzymes produced by soil microbes regulated the decomposition and fate of sequestrated soil organic carbon (SOC), with potential divergent variations following afforestation across different ecosystem scales. However, the feedbacks of different C‐degrading enzymes and their relationships with SOC following afforestation of agricultural land remain unclear.Materials and MethodsWe investigated the changes in enzyme activity and their relationships with SOC in soil aggregates across two typical climatic vegetation restoration regions in China, and explored the mechanisms through which changes in enzyme activity contribute to SOC sequestration following afforestation of agricultural land.ResultsAfforestation of agricultural land generally decreased ligninase activity and increased cellulase activity across various aggregate fractions, compared to the adjacent croplands in both subtropic (Danjiangkou Reservoir, DJK) and temperate (Maoershan, MES) region. Additionally, the ratio of ligninase to cellulase (L:C) was lower in afforested lands than in the croplands, with L:C as the major factor explaining the variations of SOC sequestration following afforestation. Specifically, ligninase and L:C were negatively correlated with SOC, whereas cellulase showed positive correlations with SOC. Further analyses suggested that microbial biomass C and nitrogen (MBC and MBN) and the ratio of SOC and total nitrogen (SOC:TN) were important factors influencing L:C and subsequently regulating SOC. These results suggest that shifts in microbial enzyme production from ligninase to cellulase following afforestation, reduced the decomposition of recalcitrant C, thus contributing to SOC sequestration.ConclusionOur work underscores the critical role of reduced L:C in enhancing SOC sequestration following the restoration of croplands to afforested lands. These findings advance the understanding of the influence of microbial community physiological adaptations on C sequestration across different land use types.
Changes in soil quality during different ecological restoration years in the abandoned coal mine area of southern China
Authors: Li Hao , Chen Wenbo , Fu Kaixin , Zhang Cheng , Liang Haifen 
Published: October 2024

AbstractUnderstanding the effects of abandoned coal mine ecological restoration on soil quality and function is important to protect the regional ecological environment. This study aims to evaluate the ecological restoration effects of soil quality in abandoned coal mine area. Taking Fengcheng County, a typical coal‐rich area in southern China, as a case, this study took 120 soil samples to investigate the influence of restoration years on soil quality by using an integrated soil quality index (SQI). Results indicated that restoration years had significant effects on the saturated hydraulic conductivity (Ks) by affecting the soil bulk density, clay content, and soil water content. Furthermore, clay, soil organic matter, Ks, and pH were selected to assess the effect of ecological restoration years on soil quality. It was found that the ecological restoration 8 years (ER8) site had higher SQI value, indicating ecological restoration years showed a positive correlation with SQI in abandoned coal mine area. Since there was a 4‐year gap between ecological restoration 4 years site and ER8 site, the ecological restoration may be effective between 5 and 8 years. The results of this study are of great significance for improving the effects of ecological restoration and management in abandoned coal mine area.
Enhancing the Purification and Stability of Superoxide Dismutase by Fusion with Thermoresponsive Self‐Assembly of Elastin Like Polypeptide
Authors: Wang Weiwei , Wang Yinfeng , Xia Zhenzhu , Hao Guijie , Tuffour Alex , Yan Lirong , Chen Jinping , Zhu Yiying , Lin Feng , Zhou Yang 
Published: October 2024

AbstractElastin‐like polypeptide (ELP) is a thermo‐sensitive biosynthetic polymer composed of a Val‐Pro‐Gly‐Xaa‐Gly repeating unit possessing a sharp reversible phase transition property at specific temperatures. Here, ELP was fused to human superoxide dismutase 1 (hSOD1) modified with His tag to produce recombinant hSOD1‐Linker‐ELP‐His (hSODLEH) which was expressed in E. coli and purified via inverse thermal cycling (ITC) and Ni‐NTA resin. The results showed that ELP tag did not affect the soluble expression of SOD1. The purification by ITC was superior to Ni‐NTA resin due to its convenient purification process, improved recovery rate and purification fold, thus indicating industrial suitability for large scale protein purification in a cost‐ and time‐efficient manner. Moreover, one round of ITC was sufficient for the recovery of highly purified recombinant SOD. The results further showed that ELP improved the stability of the SOD, and did not affect its secondary structure nor its ability to bind divalent metal ions. Overall, ELP‐protein fusion system could be a promising tool for large scale enzyme purification.
Synthesis, Characterization, and Interaction Studies of Naphtho‐[2,3]‐furan‐Based Molecules with CTAB as Model Surfactant
Authors: Ali Sonia , Kaur Khushwinder , Agarwal Jyoti 
Published: October 2024

AbstractThe synthesis of highly sensitive UV–visible active naphthofuran derivatives, namely naphtho‐[2,3]‐furan‐3‐yl acetate (NF), 9‐bromonaphtho‐[2,3]‐furan‐3‐yl acetate (BNF), 9‐nitronaphtho‐[2,3]‐furan‐3‐yl acetate (NNF), 9‐iodonaphtho‐[2,3]‐furan‐3‐yl acetate (INF), and naphtho‐[2,1‐b]‐furan‐4‐carboxylic acid (ONF) as solvatochromic molecules, was carried out through multistep synthetic approach. These molecules possess different substituents that tend to form micelles in cetyl trimethylammonium bromide (CTAB) aqueous system. During the micellization process, the absorption spectrum of the synthesized molecule exhibits sensitivity towards the polarity of the environment, which affects the critical micelle concentration (cmc) of CTAB. This study demonstrates that synthesized molecules can be used for estimating solvent polarity and cmc.
An Aggregation Induced Emission Binuclear Pt(II) Complex with Mitochondria Targeting and Cell Necrosis Inducing Capability
Authors: Yang Xiaofei , Fang Siyu , Shi Junli , Yang Yi , Zhang Yuefei , Qian Ding , Fan Hongying , Yao Hang , Chong Hui , Wang Chengyin , Xu Qin 
Published: October 2024

AbstractIn this study, we synthesized a novel binuclear Pt(II) derivative with aggregation‐induced emission (AIE) property (DPT) through a straightforward route. The IC50 of DPT in the Hela cell line was calculated to be 44.3±1.4 μM. Experimental data showed DPT could induce a decrease in mitochondrial membrane potential (MMP) and an increase in reactive oxygen species (ROS). Necrosis was observed in DPT‐treated Hela cells. In addition to the cytotoxicity, DPT also displayed mitochondrial imaging capability. Thus, this complex might potentially serve as a theragnostic reagent.
Efficiently Catalyzing Xylose to Furfural by Synthesizing Solid Acid Catalysts from Lignocellulosic Residues
Authors: Tang Wei , Qian Haojie , Wang Xinyue , Huang Caoxing 
Published: October 2024

AbstractThe utilization of biomass as a carbon source for the synthesis of renewable solid acid catalysts (SA) has emerged as a prominent research direction in the field of heterogeneous catalysis. Based on the challenges associated with reusing residues from lignocellulosic biorefining, the biomass‐based SA (BCSA) were prepared using poplar sawdust (PS), hydrothermally pretreated PS (PPS), and the residue of PPS's enzymatic hydrolysis (ER). The characterization revealed that all three types of BCSA were loaded with catalytic groups, and the BCSA synthesized using ER rich in lignin components exhibited a highly efficient catalytic structure. Furthermore, the catalysis of a 20 g/L xylose solution with BCSA‐ER as SA also achieved the highest furfural yield (89.3%) and furfural selectivity (90.3%). The findings of this study suggested that lignin holds significant potential as a carbon carrier for SA, thereby offering a viable solution for utilizing by‐products from lignocellulosic biorefining.
Unravelling the Spectrum: Recent Advances in the Synthesis of Phosphorous–Selenium Bonded Compounds
Authors: Hussain Feroze , Sakander Norein , Mahajan Sheena , Ahmed Qazi Naveed 
Published: October 2024

AbstractThe review delves into a rich tapestry of methodologies, spanning from the utilization of metals to the manipulation of light, and from electrochemical pathways to additive‐free approaches. Its aim is to meticulously compile and elucidate these diverse pathways, providing comprehensive insights into the strategies and methodologies utilized for synthesizing these compounds. By undertaking this exploration, its goal is to shed light on the intricate techniques employed in this field, consequently driving notable progress across disciplines ranging from biochemistry to medicinal research.
UV Light‐Driven Photocatalytic Performance of CeO2 and Co Ion‐Doped CeO2 Nanoparticles: High‐Efficiency Electrochemical and Chromaticity Blue LED Application
Authors: Silambarasan R. , Perisetti Uttej Siva Sai Sundar , Ramesh Ajay , Anbalagan K. 
Published: October 2024

AbstractThe study assesses the efficacy of CeO2 nanoparticles synthesised via the hydrothermal method for UV‐induced catalytic activity in decomposing cobalt complexes. Various analyses, including X‐ray diffractometry (XRD), Raman spectroscopy, scanning electron microscopy (SEM), high‐resolution transmission electron microscopy (HR‐TEM), and UV‐Vis spectrophotometry were employed to investigate the impact of cobalt on cerium oxide's morphology, optical, electrochemical, and microstructural characteristics. The XRD analysis revealed a cubic structure in the fluorite‐type pattern, primarily oriented along the (111) direction. Raman spectroscopy supported these findings, identifying an active mode peak at 464 cm−1 and indicating the presence of F2g cubic fluorite. SEM imaging displayed cleavage and uniform, densely packed grains. Elemental analysis confirmed the presence of Ce, O, and Co, corroborated by X‐ray Photoelectron Spectroscopy (XPS) data. Optical measurements indicated a band gap starting at 3.03 eV, which decreased with increasing Co ratio, reaching 2.9 eV at 4 % cobalt incorporation. Furthermore, cyclic voltammetry experiments demonstrated that Co‐doped samples exhibited enhanced ion storage capacity. These comprehensive analyses underscore the potential of Co‐doped CeO2 nanoparticles for UV‐induced catalytic activity, offering valuable insights into their structural and functional properties.
Use of Low‐Energy Ultrasonication to Enhance the Purity and Morphology of Cellulose Nanofibers Prepared from Areca Nut Shells
Authors: Mahyudin Alimin , Emriadi  , Abral Hairul , Labanni Arniati , Muldarisnur Mulda , Rozi Muhammad Fachrul , Putri Gusliani Eka , Arief Syukri 
Published: October 2024

AbstractThe isolation of cellulose nanofibers from areca nut shell has been successfully carried out using a simple alkaline treatment, acid hydrolysis, and followed by a morphological modification using low‐energy sonication method. The alkaline treatment consists of dewaxing and bleaching process to remove lignin, while acid hydrolysis process was carried out to remove hemicellulose. Mechanical fibrillation was carried out via ultrasonication and low‐power homogenization with 100 W cleaner and 3 W homogenizer to obtain fine fibers. Following the scanning electron microscope (SEM) result, the ultrasonicated treatment sample showed better lignin and hemicellulose removal processes and increased dispersity, as well as reduce diameter of cellulose fibers from 710.4 to 451.6 nm. The particle size analyzer (PSA) showed that the colloidal cellulose after sonication provide a frequent diameter of 56 nm. Fourier transform infrared (FTIR) spectroscopy result showed that sonication is an effective removal process of noncellulosic components. X‐ray diffraction (XRD) analysis showed that the crystallinity of nanocellulose decrease following the sonication process. Hence, low‐energy ultrasonication is a viable approach to enhance the morphology and mechanical strength of cellulose nanofiber.
Insight into the Structural Optimization and Electrical Conductivity of NiII/MnII Bipyridine–Dicyanamide Complexes
Authors: Sasmal Prithwiraj , Debnath Rakesh , Koner Subratanath , Brandao Paula , Dolai Malay , Bhaumik Prasanta Kumar , Banerjee Abhijit , Ghosh Pameli , Sinha Debopam , Chowdhury Anupam , Das Asit kumar , Mal Dasarath 
Published: October 2024

AbstractTwo monomeric octahedral complexes {[Ni(N(CN)2)2(bpy)2]2·H2O (1) and [Mn(N(CN)2)2(bpy)2] (2) where bpy = 2,2′‐bipyridine} were synthesized and characterized by single crystal X‐ray diffraction, elemental analysis, UV–visible, and IR spectra. The geometry optimization through DFT measurements predicts that both the complexes have similar monomeric structures with hexa‐coordinated metal centers having a couple of bpy and mononegative dca anions and thus satisfying the octahedral geometry. Moreover, it is found that the HOMO–LUMO energy gaps are ΔE = 4.981 and 5.563 eV for complexes 1 and 2, respectively, which are responsible for the stabilization of the complex formation. The calculated absorption bands are located at 304 and 235 nm, which are in excellent agreement with the experimental result. Moreover, the DFT study of the electronic spectra of both complexes shows that the calculated absorption bands are in well agreement with the experimental results. In the electrical studies, direct current (dc) measurements on the copper/complex (1 or 2)/copper structure confirm a definite development in the device current with applied bias. Complex 1 has shown better electrical conductance compared to complex 2 based on the reduction of device resistance.
Metal Ion‐Endows Orange‐Red Light Fluorogenicity of an Imine‐Linkage Probe Embracing Simple Electron Donor‐Acceptor Units
Authors: Jaiswal Akash Deep , Chourasia Jyoti , Mahato Manas , Ahamed Sabbir , Tohora Najmin , Ghanta Susanta , Das Sudhir Kumar 
Published: October 2024

AbstractSelectively tracking and quantifying Al3+ ions is a significant concern to the scientific communities. In the present article, an imine‐linkage electron donor‐acceptor system, DSAN, (E)‐5‐(diethylamino)‐2‐(((2‐hydroxy‐4‐nitrophenyl)imino)methyl)phenol has been introduced which shows Al3+ ions endows red light fluorogenicity which could be utilized for sequential and detection of Al3+ ions and picric acid (PA) in both solid and liquid phases. Upon addition of Al3+ ions into the DSAN solution, an orange‐red fluorescence is noticed at 604 nm caused by the formation of Al3+ ions chelated DSAN complex having detection and quantification limit 0.2 μM and 0.62 μM respectively in dimethylformamide (DMF) medium. The complex formation is found to be a 1 : 1 stoichiometric ratio as evident from Job's plot analysis. Also, the binding affinity value is found to be 3.24×104 M−1 demonstrating a high affinity of DSAN towards Al3+ ions. This orange‐red fluorescence of Al3+ ions chelated DSAN complex solution is quenched due to the introduction of PA. A super handy paper‐strips‐based detection tool also been fabricated utilizing DSAN which could be employed to track trace amounts of Al3+ ions in the solid state. The mechanism involved in the detection of Al3+ ions is elucidated by density functional theoretical analysis.
Cost‐Effective Approach for Fabrication of High‐Quality Expanded Vermiculite for Alizarin Red S Removal From Aqueous Media
Authors: Nguyen Thi Hoai Phuong , Cao Phuong Anh , Han Duy Linh , Nguyen Van Huy , Nguyen Dinh Duc , La Duc Duong 
Published: October 2024

AbstractVermiculite is extensively utilized for several applications, including as a hydroponic substrate, for soil conditioning, oil cleansing, and addressing trace metal pollution. In this study, the expansion of natural vermiculite was easily achieved by utilizing hydrogen peroxide (H2O2) with the aid of microwave technology. The characterization of expanded vermiculite involved the use of X‐ray diffraction (XRD), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), nitrogen adsorption isotherm (BET), and energy dissipation X‐rays (EDX). The vermiculite has been enlarged to have a structure resembling flakes, and its surface area measures 73.9 m2/g. The adsorption of Alizarin Red S onto expanded vermiculite was investigated under varying conditions, such as pH, starting concentration, adsorbent content, and duration of exposure. The enlarged vermiculite achieved a maximum adsorption capacity of 182.5 mg/g for Alizarin Red S. Out of the three adsorption isotherm models, both the Freundlich and Temkin models accurately describe the adsorption of Alizarin Red S onto expanded vermiculite. When studying adsorption kinetics, the second‐order adsorption kinetic model is more appropriate than the first‐order adsorption kinetic model, as indicated by an R2 value of 0.8964.
Eco‐Friendly Preparation of Pectin‐Stabilized Ruthenium Catalyst for Hydrogen Generation from Sodium Borohydride Hydrolysis
Authors: Ilgin Pinar , Ozay Hava , Ozay Ozgur 
Published: October 2024

AbstractIn this study, we report that pectin‐supported ruthenium nanoparticles (pectin@Ru0) can be easily prepared at room temperature by a simple and effective method and that they exhibit outstanding catalytic activity in the hydrolysis of sodium borohydride (NaBH4). The structure, oxidation state, morphology, and thermal studies were analyzed using XRD, XPS, SEM, TEM and TGA analysis. The kinetic performance of pectin@Ru0 biocatalyst was evaluated depending on ruthenium loading, NaBH4 concentration, NaOH concentration, temperature, reusability and storage. The pectin@Ru0 biocatalyst containing 2 wt.% Ru0 metal catalyzed the hydrolysis of 50 mM NaBH4+1 wt.% NaOH with 100 % yield. The activation energy (Ea) and the TOF values of the reaction was estimated as 54.7 kJ mol−1 and 53.1 mol H2 (mol Ru0 min) −1 at 30 °C and this is consistent with other previously reported catalysts, making it a remarkable result in comparison. Reusability and catalytic life studies reported that pectin@Ru0 biocatalyst is also highly active and relatively long‐lived catalyst in the hydrolysis of NaBH4 in a slightly basic solution.
Eco‐friendly Green Synthesis of Silver Nanoparticles Using Daphne Mucronata Royle Seeds Extract and the Potential Antibacterial, Antifungal, and Scolicidal Activities
Authors: Movahedi Raziyeh , Razmjoue Damoun , Bahmani Mahmoud , Lysiuk Roman , Oroojalian Fatemeh 
Published: October 2024

AbstractGreen synthesized silver nanoparticles (AgNPs) have received lots of attention due to being used as potential therapeutic agents. For the first time, this research investigated the biosynthesis of silver nanoparticles using the extract of Daphne mucronata seeds, which are rich in phenolic and polyphenolic substances and evaluated their antibacterial, antifungal, and scavenging activities. The process of nanoparticle (NPs) preparation was confirmed using UV–vis spectroscopy with an absorption peak at a wavelength of 440 nm. Dynamic light scattering (DLS) was used to determine the particles' distribution. Fourier‐transform infrared spectroscopy (FTIR) validated the functional groups contributing to the reduction of Ag+ to Ag. Moreover, X‐ray diffraction analysis (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) approved the crystalline nature and spherical shape of the particles with mean and standard deviation of particle size to be 60.25 and 24.88 nm, respectively. The antibacterial, antifungal, and scolicidal activities of AgNPs were studied using disc diffusion against four standard bacteria species and microdilution methods for four Candida strains. The greatest effect of AgNPs with the highest concentration (80 µg/mL) was observed on Staphylococcus aureus (22.26 mm) and the lowest on Pseudomonas aeruginosa (19.07 mm). In the case of Candida fungus, the highest effect of AgNPs was reported for Candida krusei (7.93 µg/mL) and the lowest for Candida albicans (63.49 µg/mL). Also, these nanoparticles were able to register 100% lethality on the Echinococcus granulosus parasite in 15 min at a concentration (80 µg/mL). Therefore, the production of AgNPs as a renewable and cheap material can be effective after performing all the necessary tests as antibacterial, antifungal and antiparasitic agents with the least side effects in biomedical and pharmaceutical sciences.