bluuebunny/crossref_metadata_2025_split huggingface dataset:
Awareness and Perception of Dentists in Kuwait Regarding the Dental Management of Patients on Oral Antithrombotic Medications
Authors: Ali Mohammad , Sundaram Devipriya 
Published: December 2023

Abstract
Objective It is crucial that dentists are up to date on the most recent recommendations for managing patients on oral antithrombotic medications (OAMs). The current study aims to analyze dental practitioners' knowledge and practice of perioperative treatment of patients on OAM in Kuwait.
Materials and Methods The study was performed among dentists in Kuwait utilizing a structured questionnaire. The questionnaire tested their knowledge about common OAMs and their indications, the bleeding risk of specific dental procedures, as well as the dangers of stopping antithrombotic therapy. Questions regarding the practice of obtaining relevant blood investigations as well as consultations with health professionals and their current course of management pertaining to specific dental procedures were included.
Statistical Analysis The collected data were analyzed by SPSS statistical software for Windows, version 28.0 (Chicago, Illinois, United States). The Student's t-test was used to compare mean percentage knowledge scores. Association between independent variables (predictors) and knowledge was assessed by employing univariate and multivariate logistic regression. A p-value of ≤ 0.05 was considered statistically significant.
Results A majority of the dentists (60.9%) demonstrated fair knowledge. Gender, practice type, and years of experience were significantly associated with knowledge. Very few dentists knew about direct oral anticoagulants. Eighty-two (33.1%) would rely on international normalized ratio tests done within 72 hours. Sixty-six (26.6%) dentists would interrupt aspirin therapy before extensive dental scaling without a medical consult and 45 (18.1%) would ask the patient to stop warfarin 3 days before extraction of one to three teeth. For patients on aspirin or warfarin, 35.1 and 47.2% of the dentists perceived the postoperative bleeding risk after a simple extraction to be high, and 14.4 and 11.2% of the dentists considered the rethrombosis risk to be low if aspirin and warfarin were interrupted.
Conclusion In this study, the dentists demonstrate a lack of knowledge and are not clear regarding practice recommendations. Every dental care provider therefore needs to update their knowledge with the latest antithrombotic medications and their indications, when to order blood investigations and medical consult, bleeding risk associated with each dental procedure, interruption of therapy, and risk of bleeding versus rethrombosis risk.
The Surgical Treatment of Xerophthalmia
Authors: Keswani M. H. 
Published: December 2023

SummaryThis paper deals with our experience in the surgical treatment of 5 patients suffering from Xerophthalmia. The etiopathology and previous methods of treatment have been outlined. The history of the development of the operation described has been traced The detailed technique of operation and postoperative management has been laid down. The complications have been mentioned.
A guided ion beam investigation of UO2+ thermodynamics and f orbital participation: Reactions of U+ + CO2, UO+ + O2, and UO+ + CO
Authors: Bubas Amanda R. , Zhang Wen-Jing , Armentrout P. B. 
Published: December 2023

A guided ion beam tandem mass spectrometer was employed to study the reactions of U+ + CO2, UO+ + O2, and the reverse of the former, UO+ + CO. Reaction cross sections as a function of kinetic energy over about a three order of magnitude range were studied for all systems. The reaction of U+ + CO2 proceeds to form UO+ + CO with an efficiency of 118% ± 24% as well as generating UO2+ + C and UCO+ + O. The reaction of UO+ + O2 forms UO2+ in an exothermic, barrierless process and also results in the collision-induced dissociation of UO+ to yield U+. In the UO+ + CO reaction, the formation of UO2+ in an endothermic process is the dominant reaction, but minor products of UCO+ + O and U+ + (O + CO) are also observed. Analysis of the kinetic energy dependences observed provides the bond energies, D0(U+–O) = 7.98 ± 0.22 and 8.05 ± 0.14 eV, D0(U+–CO) = 0.73 ± 0.13 eV, and D0(OU+–O) = 7.56 ± 0.12 eV. The values obtained for D0(U+–O) and D0(OU+–O) agree well with the previously reported literature values. To our knowledge, this is the first experimental measurement of D0(U+–CO). An analysis of the oxide bond energies shows that participation of 5f orbitals leads to a substantial increase in the thermodynamic stability of UO2+ relative to ThO2+ and especially transition metal dioxide cations.
Measurement of void fraction in gas-water bubbly flow using a derived multi-eigenvalue sequence from normalized EIT impedance matrix
Authors: Suo Peng , Sun Jiangtao , Li Xiaolin , Zhang Xiaokai , Bai Xu , He Feng , Zhang Longci , Xu Lijun 
Published: December 2023

Abstract
Void fraction is one of the dominant parameters of gas-water two-phase flow. Its accurate measurement plays an important role in achieving parameter control and reliable operation in industrial processes. This article proposes a more practical method for the measurement of void fraction in gas-water bubbly flow using a derived multi-eigenvalue sequence from a normalized electrical impedance tomography impedance matrix. The relations between eigenvalues and void fraction, bubble radius, number of bubbles are investigated by numerical simulations, which illustrates the superiority of using multi-eigenvalue rather than the largest eigenvalue for void fraction prediction. The nonlinear mapping between the multi-eigenvalue sequence and void fraction is established by applying the XGBoost model with a sliding window of time series. This proposed method is verified by static and dynamic experiments using a self-developed setup in our laboratory, generating stable gas-water bubbly flow with void fraction of less than 0.12. It is shown that the proposed method can predict void fraction with a relative deviation of 10%. Compared with the conventional method based on the largest eigenvalue, the proposed method efficiently improves the measurement accuracy of void fraction in gas-water bubbly flow and applicability in actual measurement of two-phase flow, which can be further extended to other flow regimes.
Identification of bridge modal parameters from GNSS data by integrating IEWT and robust ICA algorithm
Authors: Yu Jiayong , Xie Yilun , Fang Zhen , Peng Zhihao , Yang Ruitao , Wang Yudong 
Published: December 2023

Abstract
Empirical wavelet transform is often used to process global navigation satellite system (GNSS) bridge deformation monitoring data, but it leads to inaccurate band division and too many spurious modes. To address these problems, this study proposes an improved algorithm to identify bridge modal parameters, which combines improved empirical wavelet transform and robust independent component analysis (ICA). The proposed method adopts the autoregressive power spectrum of an improved covariance algorithm, instead of the Fourier spectrum, for band division. Additionally, it performs noise reduction and reconstruction of multi-channel GNSS monitoring data. The reconstructed signal is inputted as multi-channel observation signal into robust ICA to extract features of the source signal. Finally, the natural excitation technique and Hilbert transform are used to solve the self-oscillation frequency and damping ratio of the structure. The proposed method is validated using both simulation data and the GNSS monitoring data of the Wilford suspension bridge. The results show that the proposed method can effectively reduce the measurement noise and successfully identify the first-order vibration frequencies and damping ratios of bridge. This algorithm can also be applied in the parameter identification of other engineering structures from GNSS data.
Promote lipolysis in white adipocytes by magnetic hyperthermia therapy with Fe3O4 microsphere-doped hydrogel
Authors: Su Yu , Jin Mengshan , Chen Feifei , Xu Chenxiao , Chen Litian , Li Le , Li Yeying , Zhao Mengyuan , Zhu Guanghui , Lin Zhenkun 
Published: December 2023

Abstract
Obesity has become an ongoing global crisis, since it increases the risks of cardiovascular disease, type 2 diabetes, fatty liver, cognitive decline, and some cancers. Adipose tissue is closely associated with the disorder of lipid metabolism. Several efforts have been made toward the modulation of lipid accumulation, but have been hindered by poor efficiency of cellular uptake, low safety, and uncertain effective dosage. Herein, we design an Fe3O4 microsphere-doped composite hydrogel (Fe3O4 microspheres @chitosan/β-glycerophosphate/collagen), termed as Fe3O4@Gel, as the magnetocaloric agent for magnetic hyperthermia therapy (MHT), aiming to promote lipolysis in white adipocytes. The experimental results show that the obtained Fe3O4@Gel displays a series of advantages, such as fast sol–gel transition, high biocompatibility, and excellent magneto-thermal performance. MHT, which is realized by Fe3O4@Gel subjected to an alternating magnetic field, leads to reduced lipid accumulation, lower triglyceride content, and increased mitochondrial activity in white adipocytes. This work shows that Fe3O4@Gel-mediated MHT can effectively promote lipolysis in white adipocytes in vitro, which provides a potential approach to treat obesity and associated metabolic disorders.
Boron-intercalation-triggered crystalline transition of Pd nanosheet assemblies for an enhanced oxygen reduction reaction
Authors: Wang Hongjing , Zhou Tongqing , Xu Shan , Deng Kai , Yu Hongjie , Xu You , Li Xiaonian , Wang Ziqiang , Wang Liang 
Published: December 2023

Abstract
The development of effective and stable cathode electrocatalysts is highly desired for fuel cells. Controlling the composition and morphology of Pd-based materials can provide a great opportunity to improve their oxygen reduction reaction (ORR) performance. Here, we report the synthesis of hexagonal close-packed (hcp) Pd2B nanosheet assemblies (Pd2B NAs) via the boronation reaction between as-synthesized Pd NAs and N,N-dimethylformamide. The hcp Pd2B NAs with uniform pore distribution can provide sufficient active sites for ORRs. The insertion of B atoms can induce the phase transition from face-centered cubic structure to hcp structure, as the most thermodynamically stable phase in the Pd-B alloy, which is beneficial for enhancing the ORR stability and toxicity resistance. Therefore, the hcp Pd2B NAs exhibit superior mass activity, specific activity and excellent stability for ORR. The present strategy of boron-intercalation-triggered crystalline transition of Pd-based nanomaterials is valuable for the design of metal–nonmetal catalysts with enhanced performance.
Self-purification and entanglement revival in lambda matter
Authors: Chen Dongni , Chesi Stefano , Choi Mahn-Soo 
Published: December 2023

Abstract
In this study, we explore the dynamics of entanglement in an ensemble of qutrits with a lambda-type level structure interacting with single-mode bosons. Our investigation focuses on zero-energy states within the subspace of totally symmetric wave functions. Remarkably, we observe a universal two-stage dynamics of entanglement with intriguing revival behavior. The revival of entanglement is a consequence of the self-purification process, where the quantum state relaxes and converges universally to a special dark state within the system.
Catch and release of propagating bosonic field with non-Markovian giant atom
Authors: Xu Luting , Guo Lingzhen 
Published: December 2023

Abstract
The non-Markovianity of physical systems is considered to be a valuable resource that has potential applications to quantum information processing. The control of traveling quantum fields encoded with information (flying qubit) is crucial for quantum networks. In this work, we propose to catch and release the propagating photon/phonon with a non-Markovian giant atom, which is coupled to the environment via multiple coupling points. Based on the Heisenberg equation of motion for the giant atom and field operators, we calculate the time-dependent scattering coefficients from the linear response theory and define the criteria for the non-Markovian giant atom. We analyze and numerically verify that the field bound states due to non-Markovianity can be harnessed to catch and release the propagating bosonic field on demand by tuning the parameters of giant atom.
Fabrication of highly conductive phosphorous-doped nc-SiCx:H thin film on PET
Authors: Liu Jia , Sun Ruirui , Tang Chunjuan , Wang Longgang , Liu Chuanwei , Gao Huaiping , Guo Guanglei , Liu Lina , An Xiuyun , Shan Feng , Sun Hui , Hu Qiubo 
Published: December 2023

Abstract
Plasma enhanced chemical vapor deposition (PECVD) method has been utilized to fabricate phosphorous-doped hydrogenated nanocrystalline silicon carbide (P-doped nc-SiCx:H) thin films on polyethylene terephthalate (PET) substrate. With the aim at obtaining highly conductive thin films, H2/Ar mixed dilution has been applied for creating plasma during deposition, and the variation of structural, electrical and optical properties with H2/Ar flow ratio RH have been systemically investigated through a series of characterizations. Results show that the highly crystallized P-doped nc-SiCx:H thin film can be prepared while the properties are controllable through adjusting RH. In the case of RH = 0.75, the maximum dark conductivity (6.42 S cm−1) and a wide optical bandgap (1.93 eV) are attained. Finally, detail discussion has been made to illustrate the growth mechanism of the flexible P-doped nc-SiCx:H thin films.
Optimisation and numerical analysis of highly efficient CGSe-based thin film solar cell
Authors: Rathod Prashant K , Solanki Pankaj , Kataria Bharat , Markna J H 
Published: December 2023

Abstract
Among the various chalcopyrites compounds used in photovoltaic devices, Copper Gallium Selenium (CGSe) turns out as an underperformer due to its limited photovoltaic performance, So far highest efficiency measured is about 11.9%. This paper investigates the possibilities for efficiency enhancement for the CuGSe layer in Cu2O/CGSe/TiO2/ZnO thin film solar cell structure using the SCAPS-1D simulation program. The short circuit current (Jsc) and power conversion efficiency (PCE) is 30.77 mA cm−2 and 27.10%, with open-circuit voltage (Voc) and fill factor (FF) of 1.03 V and 84.72% respectively. Furthermore, we evaluated some specific parameters of TiO2/CGSe heterostructure, such as the influence of layer thickness, operating temperature, the effect of defect density and acceptor density of CGSe layer, metal work function, and the effect of series and shunt resistance on cell performance. We investigated that combining TiO2 as an ETL and Cu2O as HTL with a CGSe absorber layer is novel and promising, which results in higher power conversation efficiency and improves other PV parameters. The application of CGSe/TiO2 heterojunction in a simulated model offers a viable method for the development of high-efficiency solar cell devices.
Quantum conditional mutual information of W state in non-inertial frames
Authors: Saveetha H , Rohde Peter P , Chandrashekar R 
Published: December 2023

Abstract
Quantum conditional mutual information (QCMI) is a versatile information theoretic measure. It is used to find the amount of correlations between two qubits from the perspective of a third qubit. In this work, we characterise the QCMI of tripartite W-states when some of the qubits are in accelerated motion. Here for our investigations we consider a massless fermionic field in the single-mode approximation. We consider all possible situations with respect to the acceleration of the qubits. From our results, we observe that QCMI can either increase or decrease depending on the role of the qubit being accelerated. Finally we discuss the connection between QCMI and correlations by studying the biseparable and separable states.
Study of energy transfer process and radiative properties of CaAl4O7:Ho3+ phosphor for green light emission
Authors: Singh Vijay , Seshadri M , Saravanakumar S , Joo Ji Bong 
Published: December 2023

Abstract
This work comprehensively analyse the structural and photoluminescence properties of Ho3+-doped CaAl4O7 phosphor systems. X-ray diffraction (XRD), diffuse reflectance spectrum (DRS), photoluminescence (PL), and Fourier transform infrared (FT-IR) spectroscopy measurements were carried out, and Rietveld analysis confirmed the pure monoclinic structure of CaAl4O7:Ho3+ phosphor. The FT-IR spectrum showed absorption bands for the tetrahedral sites of the Al-O bonds and the octahedral sites of the Ca-O bonds, which indicate the formation of the CaAl4O7:Ho3+ phosphor. The diffuse reflectance spectrum shows sharp peaks in the visible and near-infrared regions. Photoluminescence excitation (PLE) measurements were performed on all the phosphor samples by monitoring emissions at 545 nm. Radiative properties such as total radiative transition probabilities (AT), radiative lifetime (τ
rad), and branching ratios (β) are reported by Judd–Ofelt analysis and PLE spectral measurements. Upon 454 nm excitation, a green emission band is observed at around 545 nm (5F4 + 5S2 → 5I8), and these results indicate that x = 0.05 mol Ho3+ is the optimum concentration as the 5F4 + 5S2 → 5I8 emission intensity reaches its maximum. The emission intensity quenching and energy transfer mechanism are discussed, and the results suggest that the CaAl4O7:Ho3+ samples are suitable for green-emitting phosphor.
Study of sedimentation characteristics of an elliptical squirmer in a vertical channel
Authors: Ying Yuxiang , Jiang Tongxiao , Li Siwen , Nie Deming , Lin Jianzhong 
Published: December 2023

Abstract
We used a two-dimensional lattice Boltzmann method to simulate the sedimentation motion of an elliptical squirmer in a vertical channel, taking into account the case of a circular squirmer, aiming to more realistically simulate the swimming of microorganisms in nature. The study in this was divided into two phases. The first phase comprised the numerical calculations of an elliptical squirmer with an aspect ratio of c = 2.0 and revealed three typical motion modes: steady inclined motion, wall-attraction oscillation, and large-amplitude oscillation. It was found that the formation of these three motion modes and transitions between modes are related to the pressure distribution formed between the elliptical squirmer and wall. In addition, significant differences exist between the motions of elliptical and circular squirmers. The force generated by the interaction between the elliptical squirmer and wall does not all point towards its center of mass, resulting in an additional torque on the elliptical squirmer; this is not the situation for the circular squirmer. The second phase of the study simulated squirmers with different aspect ratios (c = 1.0, c = 3.0). It was found that for an elliptical squirmer with an aspect ratio c = 3.0, the large-amplitude oscillation mode (among the above three motion modes) no longer exists. By combining the motion modes of a circular squirmer in the channel, it can be observed that as the aspect ratio c increases, the squirmer’s head direction tends to be more vertical, which may reduce the drag force during swimming.
Prediction of river salinity with artificial neural networks
Authors: Kulisz M , Kujawska J , Aubakirova Z , Wojtas E 
Published: December 2023

Abstract
This paper presents the development and evaluation of an Artificial Neural Network (ANN) based on the model for predicting the salinity of the Warta River. The study focused on the prediction of river water salinity, expressed in terms of electrical conductivity (EC), using the proposed ANN structure of 7-10-1. The network showed a satisfactory ability to capture the interrelationships between the input data: sulphates, chlorides, calcium, magnesium, total hardness, pH, and total dissolved solids. The correlation coefficient (R) values for the training, validation and test sets were 0.99444, 0.96988 and 0.97174, respectively. From the results, it can be concluded that the developed model is suitable for predicting the EC of the river.
Analysis of the impact of trailing-edge wing flaps on the aerodynamic characteristics and performance of the Tecnam P-2008JC aircraft
Authors: Kopeć I , Kawałko M 
Published: December 2023

Abstract
The aim of the article was to analyse the impact of three selected types of trailing-edge flaps on the aerodynamic characteristics and performance of the Tecnam P-2008JC aircraft. The SOLIDWORKS software, together with the Flow Simulation module, was used to design the 3D model of the aircraft and to simulate the air flow. The article contains descriptions of issues related to the aerodynamics and dynamics of aircraft motion, calculations describing the procedure for designing and building a model of the tested aircraft in the SOLIDWORKS software, performing simulations using the Flow Simulation module and determining the aerodynamic characteristics of the aircraft with the flaps applied, determining the basic performance of the aircraft with extended flaps, and then comparing the determined performance with the in a configuration without flaps.
Comparative analysis of stiffness measurement methods for lamination stacks in electric machines
Authors: Szabó Viktor , Gábor Gazdagh Zoltán , Vehovszky Balázs 
Published: December 2023

Abstract
With the increasingly strict global regulations on vehicle emissions, the demand for electromobility has risen due to its potential to reduce local emissions. However, designing an electric motor for use in passenger cars poses significant challenges. The e-motor should operate reliably in various climates with good mechanical and electrical characteristics, be lightweight, withstand repetitive thermal and structural loads, be cost-effective, and - last but not least - exhibit good noise and vibration properties. To meet these requirements, virtual testing through simulations has become the most efficient and economical approach, enabling the identification of weaknesses and unwanted behaviors before physical prototyping. This paper focuses on the testing of lamination stacks, a critical component of electric motors. Two methods of stiffness measurement for such parts are compared: static stiffness determination and dynamic analysis. The former involve compressing the specimen and measuring the force-displacement response, while dynamic method uses the restoring force surface method to obtain the stiffness and damping characteristics. The study highlights the importance of considering nonlinearity in stiffness measurements. The stiffness of lamination stacks varies depending on the pretension state, and a significant hysteresis exists between the loading and unloading curves. The paper discusses the experimental procedures for each method. The findings emphasize the necessity of accurate stiffness characterization for different applications, such as structural strength, modal analysis, dynamic analysis, and noise-vibration-harshness (NVH) studies. The research contributes to the development of electric machines by providing insights into effective stiffness measurement techniques for lamination stacks.