bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effect of the activation strategy of nickel oxide‐multi‐walled carbon nanotubes on the immobilization of xylanase for synthesis of xylooligosaccharides
Authors: Varan Nazli Ece , Yildirim Deniz , Toprak Ali , Fernandéz‐Lafuente Roberto , Alagöz Dilek 
Published: December 2024

AbstractMagnetic nickel oxide multi‐walled carbon nanotubes (MWCNT‐NiO) were employed in the immobilization of xylanase from Thermomyces lanuginosus, after modification with (3‐glycidoxypropyl)trimethoxysilane or 3‐aminopropyltriethoxysilane (APTES). The APTES‐derivatized MWCNT‐NiO particles were activated with glutaraldehyde to immobilize T. lanuginosus xylanase via covalent attachment. The (3‐glycidoxypropyl)trimethoxysilane‐derivatized MWCNT‐NiO particles were directly used for the covalent immobilization of T. lanuginosus xylanase, or the formed epoxy groups were converted to aldehyde groups. The free xylanase had maximum activity at pH 7.5, whereas the immobilized samples showed an optimum pH of 7.0. The optimum temperature was 60°C for the xylanase samples. The thermal stability of xylanase increased at 7 and/or 12 folds after immobilization. The results of xylooligosaccharide synthesis showed that the main formed xylooligosaccharides were xylobiose, xylotriose, and xylotetraose for the immobilized xylanase samples. Furthermore, an effect of the enzyme loading could be found, an increase in this parameter promoted that xylobiose and xylotriose amounts slightly increased, whereas xylotetraose amount slightly decreased. The immobilized xylanase samples retained at least 80% of their initial activity after five reuses at pH 7.0 and 60°C. The results show that the new xylanase preparations were easily separable, thermally stable, and reusable in the synthesis of xylooligosaccharides.
Cold Sintering of LLTO Composite Electrolytes for Solid‐State Lithium Batteries
Authors: Karapekmez Aras , Lan Yi‐Chen , Vardar Gulin , Ersoy Nuri , Gomez Enrique D. 
Published: December 2024

AbstractSolid‐state batteries have the potential for higher energy densities and enhanced safety when compared to conventional lithium‐ion batteries. The perovskite‐type Li3xLa2/3–xTiO3 (LLTO) is an attractive ceramic electrolyte due to its high ionic conductivity, broad electrochemical stability window, and thermal and chemical stability. The conventional sintering process for ceramics, typically performed at high temperatures (~1000 °C), poses a critical bottleneck for integrating solid electrolytes with active electrode materials. In this study, Li0.29La0.57TiO3/polypropylene carbonate (PPC) composite electrolytes containing lithium perchlorate (LiClO4) were densified using cold sintering at 125 °C. The resulting LLTO‐based composite electrolytes exhibit relative densities above 80 % and ionic conductivities exceeding 10−4 S cm−1 at room temperature. The symmetric Li/LLTO‐PPC‐LiClO4/Li cell with PVDF interlayers achieves a high critical current density of 1.8 mA cm−2 at room temperature. Solid‐state lithium batteries fabricated with LLTO composite solid electrolytes deliver a high discharge capacity of 151 mAh g−1 at 0.1 C and 135 mAh g−1 at 0.2 C. Our approach, which integrates ceramic and polymer materials, produces composite electrolytes with superior properties, highlighting the potential of cold sintering for advancing solid‐state batteries.
Studies of the Novel Bioactive Acridine‐1,3‐thiazolidin‐4‐one Derivatives With Human Serum Albumin Using Fluorescence Spectroscopy and Molecular Modelling
Authors: Konkoľová Eva , Miháliková Martina , Nowak Katarzyna E. , Gucký Adrián , Vilková Mária , Kožurková Mária 
Published: December 2024

ABSTRACTIn this study, we employ spectroscopic, thermodynamic and molecular docking approaches to identify the mechanism by which thiazolidinone derivatives 4a–4d bind with human serum albumin. It has been suggested that the affinity of the interaction of derivatives 4a–4d with HSA is within the optimal range necessary for the transportation and distribution of compounds within the organism. The binding constant values for the derivative/HSA complexes were found to be 0.03–5.87 × 105 M−1. Both ΔH0 and ΔS0 values were negative, which indicates that binding occurs mainly through van der Waals forces and hydrogen bonding. The negative values calculated for ΔG0 indicate that the binding of derivatives 4a–4d with HSA is a spontaneous process. Our study also reveals that derivatives 4a–4d bind to the subdomain IB (Site III) of HSA and that this binding alters the conformation and thermodynamic stability of HSA. Molecular docking simulations suggest that the main binding forces are van der Waals interactions, hydrophobic interactions and hydrogen bonds. The studied compounds showed weak DPPH‐scavenging activity at all of the tested concentrations. The results suggest that compound 4b with a phenyl substituent at the nitrogen atom of the 1,3‐thiazolidin‐4‐one moiety can be considered the most potent antioxidant in the series.
The mummy of Pharaoh Amenhotep III (reigned ca. 1388–1351 BC) and its facial approximation: An anatomical approach
Authors: Moraes Cicero , Habicht Michael E. , Artico Marco , Forte Flavio , Varotto Elena , Galassi Francesco M. 
Published: December 2024

AbstractThis article offers for the first time a facial approximation of the Ancient Egyptian Pharaoh Amenhotep III (reigned ca. 1388–1351 BC) based on photographic material of his mortal remains and anthropometric data collected at the time, and by adopting a novel technique previously used in similar research by our team. A comprehensive discussion of the mummy attributed to Pharaoh Amenhotep III is also annexed to the study, focusing on the bioarcheological and embalming aspects.
Safety and Clinical Outcomes of a Complete “Minimalist” Left Atrial Appendage Occlusion Pathway
Authors: Schlossnagle Cashawna M. , Mohanty Bibhu D. , Mehta Jeet J. , Hadar Ari , Koelmeyer Himara , Roman Janet , Wilson David R. , Herweg Bengt , Bezerra Hiram G. , Basrawala Hussain Z. 
Published: December 2024

ABSTRACTThe standard approach to catheter based left atrial appendage occlusion (LAAO) involves trans‐esophageal echocardiography (TEE) guided screening and placement, and procedural general anesthesia requiring overnight stay. In pursuit of improved patient experience and reduced cost, streamlined approaches in each phase of care have been explored. However, the safety and clinical outcomes for a completely protocolized minimalist approach utilizing computed tomography angiogram (CTA), intracardiac echocardiography (ICE), conscious sedation, and same‐day discharge are lacking. We retrospectively studied 179 patients undergoing LAAO for nonvalvular atrial fibrillation using a novel “Minimalist” pathway. Efficacy and safety endpoints included stroke, systemic embolism, major bleeding requiring transfusion, pericardial effusion, vascular complication, or death through 7 or 45 days post‐procedure. The procedural success rate in Minimalist cases was 100%. A total of 159 patients (88.8%) were eligible for SDD. All patients survived to 45 days of follow up and there was a 0% incidence of stroke, systemic embolism, and vascular complications. There were low rates of DRT (1.3%) and peri‐device flow (0.7%), yielding a high rate of safe OAC discontinuation. Using a pre‐defined Minimalist pathway, eligible patients demonstrated excellent clinical outcomes comparable to those reported in national clinical registries, supporting use of our novel pathway to safely improve both patient experience and efficiency of care.
Cage‐Free Chronic Occlusion PCI: Multivessel Total and Subtotal Occlusion Treatment With Drug Coated Balloon Angioplasty
Authors: Selvakumar Dinesh , Graham John J. , Buller Christopher E. , Bagai Akshay 
Published: December 2024

ABSTRACTDrug‐coated balloon (DCB) catheters offer an alternative to drug‐eluting stents (DES) by delivering anti‐proliferative drugs directly to vessel walls, avoiding implantation of a permanent metallic structure. While DCBs have shown efficacy for in‐stent restenosis, evidence for their application in de novo coronary disease and chronic total occlusion (CTO) PCI is growing. We present a case of a 49‐year‐old male with multivessel chronic total and subtotal occlusions who had complete percutaneous revascularisation using a DCB only strategy. Each lesion had unique characteristics involving its length and location, bifurcation anatomy, and vessel diameter for which this stent‐free approach was favored. DCB use in CTO PCI may be promising in select cases and lesions, and further studies are warranted to ascertain long‐term efficacy in this setting.
Forage accumulation and nutritive value of ‘Wrangler’ bermudagrass hayfield in response to nitrogen and harvesting management
Authors: Pedreira Bruno C. , Yasuoka Junior I. , Helwig Dale , Farney Jaymelynn K. , Sassenrath Gretchen F. 
Published: December 2024

AbstractInterest in seeded bermudagrass cultivars has increased, but there is still a lack of information on management strategies combining nitrogen (N) fertilization and harvest frequency to support producer's decision‐making process in a hayfield. In this study, we evaluated how combinations of N fertilization and harvesting management affect total forage accumulation (TFA) and nutritive value in ‘Wrangler’ bermudagrass [Cynodon dactylon (L.) Pers.] for 2 years. Management strategies were combinations of N fertilization (without N, one application, or three applications) and harvesting management (once or three times). Harvesting once or three times did not affect the TFA without N fertilization (H1 and H3) or with one application (H1N1 and H3N1). However, harvesting three times with three N applications (H3N3) presented the greatest TFA (7795 lbs dry matter [DM]/acre) and greater crude protein (CP), net energy gain, total digestible nutrients, and phosphorus (P) concentration, and lesser acid detergent fiber. Consequently, the greatest CP accumulation (CPA) was found in the H3N3 as well. Therefore, associating N fertilization with more frequent harvesting can increase the TFA and CPA, and improve the forage nutritive value, which can significantly affect winter feeding costs.
Aqueous Dispersion of Xenes by Liquid Phase Exfoliation of Monoelemental Crystals in Melamine Solution
Authors: Vaso Alexia , Tegkelidi Eleni , Kaloudi Angela S. , Gournis Dimitrios P. , Tzitzios Vasileios , Boukos Nikos , Kolokithas Ntoukas Argiris , Georgakilas Vasilios I. 
Published: December 2024

AbstractΑfter the impressive evolution of graphene and its derivatives, a large number of two dimensional (2D) materials with important optical and electrical properties have been successfully fabricated. Liquid phase exfoliation (LPE) of layered and non‐layered materials has become a widely applied method for the preparation of 2D nanostructures with an extensive variety of applications. However, in most cases organic solvents are used as liquid phase which are often toxic and environmentally unfriendly and lead to low yields. In this work, we present water as a suitable liquid phase and dispersion medium for the exfoliation of layered and non‐layered monoelemental solids from IVA, VA and VIA groups of the periodic table, such as silicon, tin, bismuth and tellurium. The 2D nanostructures, silicene, stanene, bismuthene and tellurene are therefore prepared by a completely sustainable and environmentally friendly method. The prepared Xenes, as they are called, are fully characterized by microscopic and spectroscopic techniques.
Quantitative Assessment of the Structural Effects in Foot Soft Tissues Depending on the Mechanical Contact Between Joints
Authors: Mancera‐Campos N. , Vidal‐Lesso A. , Bayod López J. 
Published: December 2024

ABSTRACTDeveloping realistic numerical foot models is essential to accurately predict the structural behavior of its bones and soft tissues. The representation of the foot joints is a crucial point that must be considered to recreate these models' natural behavior. Numerically, different types of contact represent these interactions, two being the most common: one that allows movement between bones and one that restricts it. However, the structural behavior of the model is affected depending on which type of contact is chosen to simulate the interaction. Therefore, this paper aims to develop a numerical foot model to analyze and quantify both types of mechanical contact and determine their effect on soft tissues by evaluating and comparing different structural parameters. The results show that the TA, CPF, LPF, EDB, and FDBT soft tissues reach the maximum stress and strain levels like the highest displacement values. The differences between models in these tissues reach percentage values of up to 74.69% for the principal stresses and up to 68.42% for the principal strains. Significant differences were also found in the displacements obtained in the anteroposterior axes (X) and the vertical or the load axis (Y) of up to 42.03% and 37.47%, respectively. These results allow us to quantify the impact that the choice of the contact type of the foot joints has over its soft tissues and suggest that the way of simulating the movement between bones contributes significantly to the quantitative variation of the structural parameters, affecting thus, the predictions made in the several studies performed with foot numerical models; a contact type that reproduces the natural joint movement is the better option based on this work results.
Electrified Dynamically Responsive Ammonia Decomposition to Hydrogen Based on Magnetic Heating of a Ru Nanocatalyst
Authors: Ponikvar Žiga , Sedminek Anja , Teržan Janvit , Skubic Luka , Lavrič Žan , Huš Matej , Grilc Miha , Likozar Blaž , Makovec Darko , Gyergyek Sašo 
Published: December 2024

AbstractStoring and transporting pressurized or liquid hydrogen is expensive and hazardous. As a result, safer methods, such as chemical storage in ammonia, are becoming increasingly important. However, the instantaneous start of a conventionally heated decomposition reactor is challenging. Here we report on the electrified and dynamically responsive decomposition of ammonia as a means of releasing on‐demand chemically bonded hydrogen based on the rapid magnetic heating of a well‐designed Ru‐based nanocomposite catalyst. Under relatively mild conditions (400 °C, 1 bar) a rapid decomposition rate of 5.33 molNH3 gRu−1 h−1 was achieved. Experimental observations under non‐isothermal, dynamic conditions coupled with modelling at the level of density functional theory and micro‐kinetic modeling confirmed the minute‐scale response of the H2 release. The rapid response of our catalytic system would, at least in principle, enable the utilization of intermittent, renewable electricity and a tunable H2/NH3 ratio in the reactor's effluent.
Deep Adaptive Learning‐Based Beam Combining Framework for 5G Millimeter‐Wave Massive 3D‐MIMO Uplink Systems
Authors: Mahendran K. , Sudarsan H. , Rathika S. , Shankarlal B. 
Published: December 2024

ABSTRACTIn today's wireless communication systems, the integration of 5G millimeter‐wave (mmWave) Massive Multiple Input–Multiple Output (M‐MIMO) technology offers significant advancements and capabilities that address the growing demand for higher data rates, increased capacity, and improved user experiences. In three‐dimensional (3D) environments, the design of beamforming for uplink multi‐user M‐MIMO relies on accurate uplink channel state information (CSI) at the transmitter/receiver. In fact, it is difficult for the Base Station (BS) and the User Equipment (UE) to obtain beam patterns due to computational complexity, multiple 3D beams, and regulating the weight of antenna elements, which leads to significantly low sum‐rate. Hence, a robust, deep adaptive learning framework in the case of 3D beamforming is needed. This paper proposes a deep adaptive learning‐based beam combining framework using User‐Wise Attention‐Assisted Deep Adaptive Neural Network (UWA‐DANN) for mmWave‐3DM‐MIMO systems. In this, a UWA mechanism learns a set of beam features and corresponding weights for each user. This mechanism allows the system to focus on different users independently and adapt the beamforming process accordingly. Also, it allows the network to dynamically focus on relevant information from the input channels and user constraints. To this end, a dynamic beam pattern is adapted using the DANN model to learn user positions, channel measurements, and beamforming weights. This approach learns to map input parameters such as user positions, channel measurements, and corresponding beam patterns to extract relevant features for beam pattern adaptation. Thus, the UWA‐DANN approach provides higher data rates, low complexity, and improved link stability for users. Experimental results show that the proposed UWA‐DANN model obtains robust performance over existing schemes in terms of achievable rate and sum‐rate under field trial sites in urban scenarios.
PCOT: An open‐source toolkit for multispectral image processing
Authors: Finnis James , Miles Helen C. , Ladegaard Ariel , Gunn Matt 
Published: December 2024

AbstractPCOT is a Python program and library which allows users to manipulate multispectral images and associated data. It is in active development in support of the ExoMars mission and intended to be used on data from the Rosalind Franklin rover, but it has much greater potential for use beyond this specific context. PCOT operates on a graph model – the data are processed through a set of nodes which manipulate it in various ways (e.g. add regions of interest, perform maths, splice images together, merge image channels, plot spectra). A PCOT document describes this graph, and we intend that documents are distributed along with the data they generate to help reproducibility. PCOT is open‐source, and contributions can be made to the core software, as plugins, or by using PCOT as a library in your own code.
Beyond Focal Lesions: Dynamical Network Effects of White Matter Hyperintensities
Authors: Leone Riccardo , Geysen Steven , Deco Gustavo , Kobeleva Xenia ,   Alzheimer's Disease Neuroimaging Initiative
Published: December 2024

ABSTRACTWhite matter (WM) tracts shape the brain's dynamical activity and their damage (e.g., white matter hyperintensities, WMH) yields relevant functional alterations, ultimately leading to cognitive symptoms. The mechanisms linking the structural damage caused by WMH to the arising alterations of brain dynamics is currently unknown. To estimate the impact of WMH on brain dynamics, we combine neural‐mass whole‐brain modeling with a virtual‐lesioning (disconnectome) approach informed by empirical data. We account for the heterogeneous effects of WMH either on inter‐regional communication (i.e., edges) or on dynamics (i.e., nodes) and create models of their local versus global, and edge versus nodal effects using a large fMRI dataset comprising 188 non‐demented individuals (120 cognitively normal, 68 with mild cognitive impairment) with varying degrees of WMH. We show that, although WMH mainly determine local damage to specific WM tracts, these lesions yield relevant global dynamical effects by reducing the overall synchronization of the brain through a reduction of global coupling. Alterations of local nodal dynamics through disconnections are less relevant and present only at later stages of WMH damage. Exploratory analyses suggest that education might play a beneficial role in counteracting the reduction in global coupling associated with WMH. This study provides generative models linking the structural damage caused by WMH to alterations in brain dynamics. These models might be used to evaluate the detrimental effects of WMH on brain dynamics in a subject‐specific manner. Furthermore, it validates the use of whole‐brain modeling for hypothesis‐testing of structure–function relationships in diseased states characterized by empirical disconnections.
Enhancing Employee Outcomes Through Common Good Human Resource Management: Exploring the Role of Meaningfulness and Thriving
Authors: Lu Ying , Zhang Mingqiong Mike , Yang Miles M. , Li Teng 
Published: December 2024

ABSTRACTIn the evolving landscape of human resource management (HRM), common good HRM (CG‐HRM) practices are increasingly recognized for their potential to align organizational goals with societal sustainability. Despite their importance, how CG‐HRM influences employee outcomes remain underexplored. Drawing on Conservation of Resources (COR) theory, this research explores the impact of CG‐HRM practices, conceptualized as critical organizational‐level resources, on employees' perception of meaningfulness of work. [Correction added on 20 December 2024, after first online publication: The definition of COR has been corrected in the preceding sentence.] This perception significantly affects employee thriving, which in turn fosters innovative behavior. Employing a multi‐wave, multisource survey design, we collected data from 45 firms in China, involving 82 executives and 206 employees, to test our conceptual model. The findings from a multilevel path model reveal that organizational CG‐HRM practices contribute to employees' perceived meaningfulness of work, which promotes employee thriving and subsequently innovative behavior at the organizational level, while meaningfulness also contributes to thriving and, thus, innovative behavior at the employee level. Our research enriches the COR theory and contributes to the HRM, thriving, and innovation literature, offering insights for future research and practical implications for organizations striving to align their goals with societal and environmental sustainability while nurturing a thriving workforce.
Establishing the Hydrological Controls on Water Surface Area Variations in Oxbow Lakes
Authors: Ahmed Joshua 
Published: December 2024

ABSTRACTOxbow lakes are iconic fluvial landforms found in the floodplains of meandering rivers around the world. Their formation is associated with meander cutoff, a process that excises sections of river channel to optimise the downstream transmission of water and sediment. Overbank floods and conveyance through tie channels maintain some hydrological connectivity, but lakes are generally considered to passively infill until they are terrestrialised. Here, a suite of 64 lakes across two meandering rivers in the Bolivian Amazon Basin are used to demonstrate the hydrological dynamism of oxbow lakes by quantifying interannual variations in lake water surface area (WSA), using the modified Normalised Difference Water Index (mNDWI) on an archive of Landsat images, and evaluating the mechanisms controlling these changes using remotely sensed rainfall data and geospatial analysis. The majority of lakes (75%) decreased in size over the study period, while 25% increased in size. The results suggest that WSA variations are controlled by proximity to the active channel, with the magnitude of these variations being set by mechanisms of connectivity. Lakes connected by tie channels experienced WSA changes up to 3.9 times larger than lakes with no visible connection mechanisms. Incursion lakes displayed similar WSA changes to those with tie channels, while isolated lakes were found furthest from the mainstem and had the smallest range of WSAs. Chute lakes experienced a wider range of WSA change (−95% to +281%) and were more strongly controlled by mainstem proximity than neck lakes. Connectivity between the river and oxbow lakes is essential for governing lake hydrodynamics, and tie channels provide the critical conduit by which water can be transmitted deep into the floodplain.