bluuebunny/crossref_metadata_2025_split huggingface dataset:
Clinical Outcomes of Patients with Atrial Fibrillation who Survived from Bleeding Event: The Results from COOL-AF Thailand Registry
Authors: Winijkul Arjbordin , Kaewkumdee Pontawee , Yindeengam Ahthit , Lip Gregory Y.H. , Krittayaphong Rungroj 
Published: April 2024

Background Bleeding events are often reported among patients with atrial fibrillation (AF), irrespective of antithrombotic use. This study is to determine clinical outcomes of patients with AF who survived from bleeding event.
Methods We analyzed data from COOL-AF (Cohort of Antithrombotic Use and Optimal International Normalized Ratio Levels in Patients with Atrial Fibrillation) Thailand registry. Outcomes of patients who experienced any bleeding were compared with patients who had never bleed. Time updated multivariate Cox-proportional hazard models were used to estimate the risk for clinical outcomes of patients with and without bleeding.
Results Of total 3,405 patients (mean age: 67.8 ± 11.3 years; 41.9% female) in COOL-AF registry, 609 patients (17.9%) reported bleeding event occurs and 568 patients (93.3%) survived though hospital discharge. Patients who survived major bleeding (n = 126) were at increased risk for both death (adjusted hazard ratio [HR]: 4.44, 95% confidence interval [CI]: 2.91–6.75, p < 0.001) and stroke/systemic embolism (adjusted HR: 4.49, 95% CI: 2.19–9.24, p < 0.001). Minor bleeding also increased subsequent death (adjusted HR: 2.13, 95% CI: 1.56–2.90, p < 0.001). Up to 30% of patients who survived major bleeding and 6.3% of minor bleedings discontinued oral anticoagulation. Discontinuation was associated with very high death rate (42.1%), whereas patients who resumed oral anticoagulation after bleeding had lower mortality (10%). The most common causes of death in patients who survived a bleeding event were not related to cardiovascular causes nor bleeding.
Conclusion Patients with AF who have bleeding events have an increased risk for subsequent death and stroke and systemic embolism. These patients should be identified as vulnerable clinically complex patients and require a holistic approach to their AF management.
Evaluation of Reliability of Dynamic Scapholunate Distance Measured on 4D CT-Acquired Images
Authors: Goeminne Sofie , Salaets Emiel , Coudyzer Walter , Shah Darshan , Degreef Ilse , Scheys Lennart 
Published: April 2024

Abstract
Purpose A technique to measure scapholunate distance based on four-dimensional computed tomography (4D CT)-acquired images is presented.
Methods Intra-observer variability was evaluated through a repeated-measures study. A 4D CT of seven patients suspected of scapholunate lesion was performed. Anatomical landmarks were identified on a three-dimensional reconstructed model of the wrist. All 4D CT datasets were evaluated thrice by two observers. Standard deviation of the differences between two measurements, interclass correlation coefficient (ICC), standard error of measurement (SEM), and minimal detectable change (MDC) were calculated.
Results Intra-observer variability for the expert observer (ICC > 0.95) was lower than that of the novice observer (ICC > 0.77) and interobserver variability was low (ICC > 0.85). For the expert observer, measurement error (SEM < 0.13 mm and MDC < 0.36 mm) was smaller than that of the novice observer (SEM < 0.45 mm and MDC < 1.24 mm). Both SEM and MDC values were low, compared to the scan resolution and the absolute value of intervals.
Conclusion The proposed assessment results in a reproducible and reliable measurement of scapholunate distance.
Right up their street? News media framing of the protest activities of far-right movement parties
Authors: Paxton Fred 
Published: April 2024

Abstract
Far-right parties have increasingly emphasised their movement-like characteristics as a novel mobilisation strategy. Existing studies of these so-called ‘far-right movement parties’ have concentrated on their internal organisation and communications to understand how they mediate between a movement and party identity through their own actions. Yet research is lacking on how this identity is constructed and presented by the news media: a crucial interface between institutional politics and public opinion. This paper pursues this enquiry with a comparative analysis of the newspaper coverage of two prominent cases—the German AfD and UKIP—and asks how coverage of their increasing involvement in protests has varied cross-nationally and evolved over time. The analysis reveals the relative salience of the protest activities of the far-right, along with the associated social movement actors, issues and frames used in the reporting. It shows that far-right party protest receives a low level of attention and tends to be accompanied by delegitimising framing, particularly when associated (extremist) movements are also present. In both cases analysed, a critical juncture generated increasing attention to far-right party protest, but also more delegitimising frames. The study provides new insights into the structures and processes which influence how the media has responded to the new far-right ‘movement party’ form in Europe, with implications for our understanding of contemporary far-right mobilisation strategies.
Drawing the line: public attitudes towards warranted and unwarranted government surveillance in European countries
Authors: Školník Milan , Haman Michael 
Published: April 2024

AbstractThis article investigates public attitudes towards government surveillance for law enforcement and national security in different European countries, considering the broader context of citizens' security concerns. These concerns encompass crime within individual countries, potential terrorist attacks, activities of foreign agents, and even inter-state conflicts, such as the Russian Federation's military aggression against Ukraine. Using data from the International Social Survey Programme, we examine opinions about various types of government surveillance. Regression analysis is employed to determine which variables influence these opinions. Notably, there is a tangible hesitation among citizens regarding such surveillance, stemming from fears of privacy invasion and potential misuse of collected data. Our findings indicate greater support for government surveillance in Western and Nordic countries compared to post-Communist countries. Respondents with a comprehensive understanding of political issues and those advocating for government spending on security generally held a more positive view of government surveillance rights. On the other hand, perceptions of higher corruption were linked to negative views on surveillance.
Design and verification of a new non-contact piezoelectric energy harvester based on a sinusoidal exciting mechanism
Authors: Li Jie , Qi Ji , Wang Liang 
Published: April 2024

In this paper, a new non-contact rotary piezoelectric energy harvester based on a sinusoidal exciting mechanism has been proposed. The energy transformation is realized in a non-contact form. The sinusoidal orbital rotor can act as a sinusoidal excitation to the contacts, and it can avoid damage to piezoelectric ceramics from direct strikes while bending piezoelectric cantilever beams. After a series of experiments, the prototype demonstrated an excellent output performance. Having explored the influence of the rotation speed on the output voltage, it reaches the peak when the rotation speed is 180 rpm and the maximum voltage is 18.6 V. The relationship between power and voltage was validated with the rise of resistance at the optimum speed. When the resistance is 10 kΩ, the power that arrives at the peak is 1.35 mW, and the maximum voltage is 12.1 V when the resistance is 200 kΩ. Some application experiments have been designed and verify the feasibility of the prototype; it can light up 18 LEDs and power some microelectronic equipment.
Enhanced thermal conductivity of epoxy resin by incorporating three-dimensional boron nitride thermally conductive network
Authors: Wang Xubin , Zhang Changhai , Zhang Tiandong , Tang Chao , Chi Qingguo 
Published: April 2024

Packaging insulation materials with high thermal conductivity and excellent dielectric properties are favorable to meet the high demand and rapid development of third generation power semiconductors. In this study, we propose to improve the thermal conductivity of epoxy resin (EP) by incorporating a three-dimensional boron nitride thermally conductive network. Detailedly, polyurethane foam (PU) was used as a supporter, and boron nitride nanosheets (BNNSs) were loaded onto the PU supporter through chemical bonding (BNNS@PU). After immersing BNNS@PU into the EP resin, EP-based thermally conductive composites were prepared by vacuum-assisted impregnation. Fourier transform infrared spectrometer and scanning electron microscope were used to characterize the chemical bonding and morphological structure of BNNS@PU, respectively. The content of BNNS in BNNS@PU/EP composites was quantitatively analyzed by TGA. The results show that the thermal conductivity of the BNNS@PU/EP composites reaches 0.521 W/m K with an enhancement rate η of 30.89 at an ultra-low BNNS filler content (5.93 wt. %). Additionally, the BNNS@PU/EP composites have excellent dielectric properties with the frequency range from 101 to 106 Hz. This paper provides an interesting idea for developing high thermal conductivity insulating materials used for power semiconductor packaging.
Optical and electronic properties of BCN films deposited by magnetron sputtering
Authors: Liu Caiyun , Chen Le , Yin Hong 
Published: April 2024

Boron carbonitride (BCN) films containing hybridized bonds involving B, C, and N over wide compositional ranges enable an abundant variety of new materials, properties, and applications; however, their electronic performance is still limited by the presence of structural and electronic defects, yielding sluggish mobility and electrical conductivity. This work reports on mechanically stable BCN films and their corresponding optical and electronic properties. The ternary BCN films consisting of hybridized B–C–N bonds have been achieved by varying N2 flow by the radio frequency magnetron sputtering method. The BCN films show a bandgap value ranging from 3.32 to 3.82 eV. Hall effect measurements reveal an n-type conductivity with an improved hall mobility of 226 cm2/V s at room temperature for the optimal film. The n-BCN/p-Si heterojunctions exhibit a nonlinear rectifying characteristic, where the tunneling behavior dominates the injection regimes due to the density of defects, i.e., structural disorder and impurities. Our work demonstrates the tunable electrical properties of BCN/Si p–n diodes and, thus, is beneficial for the potential application in the fields of optics, optoelectronics, and electrics.
Divergence-time estimation in Indo-European
Authors: Goldstein David 
Published: April 2024

Abstract
Divergence-time estimation is one of the most important endeavors in historical linguistics. Its importance is
matched only by its difficulty. As Bayesian methods of divergence-time estimation have become more common over the past two
decades, a number of critical issues have come to the fore, including model sensitivity, the dependence of root-age estimates on
uncertain interior-node ages, and the relationship between ancient languages and their modern counterparts. This study addresses
these issues in an investigation of a particularly fraught case within Indo-European: the diversification of Latin into the
Romance languages. The results of this study support a gradualist account of their formation that most likely began after 300
CE. They also bolster the view that Classical Latin is a sampled ancestor of the Romance languages (i.e., it lies
along the branch leading to the Romance languages).
Polarisation in Venezuelan presidential tweets
Authors: Peterssen Silvia 
Published: April 2024

Abstract
The Venezuelan Presidential Crisis emerged as a unique polarising political scenario in January 2019, when Juan
Guaidó, president of the National Assembly, proclaimed himself interim president of the country, despite the victory obtained by
Nicolás Maduro in the May 2018 presidential elections. Considering this context and the role of social media in the spread of
polarisation, the present manuscript examines how metaphors and social actor representations act as divisive discursive tools in
the tweets of Maduro and Guaidó. To do so, a corpus of tweets posted by these politicians during the first year of the conflict
(2019–2020) is analysed, adopting a target-based approach (Stefanowitsch and Gries
2006) to identify the polarising metaphors and a socio-cognitive framework (Darics and
Koller 2019; van Leeuwen 2008) to study the social actor representations.
The results reveal that these discursive devices help both leaders to construct their social identities, legitimise themselves,
delegitimise the other and reproduce their polarising ideological schemas.
Microwave spin-pumping from an antiferromagnet FeBO3
Authors: Gabrielyan D A , Volkov D A , Kozlova E E , Safin A R , Kalyabin D V , Klimov A A , Preobrazhensky V L , Strugatsky M B , Yagupov S V , Moskal I E , Ovsyannikov G A , Nikitov S A 
Published: April 2024

Abstract
Canted antiferromagnets offer great potential in fundamental research and for use in applications due to their unique properties. The presence of the Dzyaloshinskii–Moriya interaction (DMI) leads to the existence of a weak ferromagnetic moment at room temperature. We study both theoretically and experimentally microwave spin pumping by a quasi-ferromagnetic mode from a canted easy plane antiferromagnet with weak ferromagnetism FeBO3. The conversion of a microwave signal into a constant voltage is realized using the inverse spin Hall effect in an iron borate/heavy metal heterostructure. We use an additional bias magnetic field to selectively tune the resonance frequency of such a microwave detector over a wide range up to 43.5 GHz with a potential sensitivity near 2.5 µV W−1. We confirm the pure spin current nature by changing the polarity of the detected via inverse spin Hall effect voltage by switching the direction of the bias magnetic field. We believe that our results will be useful for the development of highly tunable, portable and sensitive microwave antiferromagnet-based functional devices.
Study on the sensitivity of the Higgs boson couplings in photon–photon collision at CLIC and muon collider
Authors: Spor S 
Published: April 2024

Abstract
In a model-independent way, we explore the potential of photon-induced interactions with the process γ*γ* → ZZ to investigate CP-conserving and CP-violating dimension-six operators of Higgs-gauge boson couplings using the standard model effective field theory. The existence of anomalous H
γ
γ and HZZ couplings is discussed at 3 TeV compact linear collider (CLIC) and 10 TeV muon collider (MuC) with integrated luminosities of 5 and 10 ab−1, respectively. All signal and relevant background events are generated in MadGraph and passed through PYTHIA for parton showering and hadronization. The detector effects are evaluated using CLIC and MuC detector cards tuned in Delphes. We report the 95% confidence level limits on the Wilson coefficients

c

¯

γ

,

c

¯

HB

,

c

¯

HW

,

c

̃

γ

,

c

̃

HB

, and

c

̃

HW

and compare them with the experimental and phenomenological limits.
Optimization of tunnel grouting detection technology based on ultrasonic phased array
Authors: Wang You , Li Guowei , Zhou Lu , Wang Rui 
Published: April 2024

Abstract
Due to the lack of a perfect and convenient method to detect the grouting quality of shield tunnels, an optimized ultrasonic phased array tunnel grouting detection technology is proposed. The particle swarm genetic algorithm is optimized to be used for phased array sparse, and the GA-VMD-SG algorithm is proposed to be used for noise reduction of ultrasonic detection signals, and numerical simulation and experimental methods are used to validate the optimized detection effect of the ultrasonic phased array. The results show that: the GA-PSO algorithm can better simplify the array and reduce the maximum sidelobe value; the GA-VMD-SG algorithm can well reduce the noise of ultrasonic signals; numerical simulation and experiments verify the feasibility of the ultrasonic phased array to detect the quality of grouting and the optimization effect of the two algorithms.
A multi-output fault diagnosis framework for hydraulic system using a CNN-SVM hierarchical learning strategy
Authors: Liang Na , Yuan Zhaohui , Kang Jian , Jiang Ruosong , Zhang Jianrui , Yu Xiaojun 
Published: April 2024

Abstract
Achieving asymptotic and concurrent fault diagnosis in hydraulic system remains a challenging endeavor due to the inherent attributes of the hidden occurrence, simultaneous manifestation, coupling, and limited sample size. To address the above issues, this paper proposes a hierarchical multi-output fault detection and diagnosis framework, namely, HMDF, based on a hierarchical learning strategy to leverage an improved convolutional neural network (CNN) and support vector machine (SVM). Both a multi-channel CNN and a multi-branch CNN are employed to extract and downscale features collected by the sensors at diverse sampling frequencies first, and then, such features are subsequently subjected to classification using SVM. The hierarchical learning strategy enables the identification of different fault states, both at the component and the intra-component level. Additionally, a modified whale optimization algorithm is also utilized to optimize the classification process of SVM. Extensive experiments are conducted to test the proposed HMDF with the hydraulic system datasets. Results show that HMDF achieves a diagnostic accuracy of up to 98.9% for the dataset, surpassing traditional methods reliant on manual extraction of time–frequency features, and it also exhibits superior classification performances with a small sample size. The HMDF is expected to offer a generalized framework for the multi-output fault detection and diagnosis in hydraulic systems and other complex components.
Asymptotically quasiperiodic solutions for time-dependent Hamiltonians
Authors: Scarcella Donato 
Published: April 2024

Abstract
Dynamical systems subject to perturbations that decay over time are relevant in describing many physical models, e.g. when considering the effect of a laser pulse on a molecule, in epidemiological studies, and celestial mechanics. For this purpose, we consider time-dependent Hamiltonian vector fields that are the sum of two components. The first has an invariant torus supporting quasiperiodic solutions, and the second decays as time tends to infinity. The time decay is modelled by functions satisfying suitable conditions verified by a proper polynomial decay in time. We prove the existence of orbits converging as time tends to infinity to the quasiperiodic solutions associated with the unperturbed system. The proof of this result relies on a new strategy based on a refined analysis of the Banach spaces and the functionals involved in the resolution of suitable nonlinear invariant equations. This result is proved for finite differentiable and real-analytic Hamiltonians. Analogous statements for time-dependent vector fields on the torus are also obtained as a corollary. These results extend a previous work of Canadell and de la Llave, where only exponential decay in time is considered. The relaxation of the decay in time makes the results in the present paper suited for applications in many physical problems, such as celestial dynamics.
Sensitivity volume as figure-of-merit for maximizing data importance in electrical impedance tomography
Authors: Onsager Claire C , Wang Chulin , Costakis Charles , Aygen Can C , Lang Lauren , van der Lee Suzan , Grayson Matthew A 
Published: April 2024

Abstract

Objective. Electrical impedance tomography (EIT) is a noninvasive imaging method whereby electrical measurements on the periphery of a heterogeneous conductor are inverted to map its internal conductivity. The EIT method proposed here aims to improve computational speed and noise tolerance by introducing sensitivity volume as a figure-of-merit for comparing EIT measurement protocols. Approach. Each measurement is shown to correspond to a sensitivity vector in model space, such that the set of measurements, in turn, corresponds to a set of vectors that subtend a sensitivity volume in model space. A maximal sensitivity volume identifies the measurement protocol with the greatest sensitivity and greatest mutual orthogonality. A distinguishability criterion is generalized to quantify the increased noise tolerance of high sensitivity measurements. Main result. The sensitivity volume method allows the model space dimension to be minimized to match that of the data space, and the data importance to be increased within an expanded space of measurements defined by an increased number of contacts. Significance. The reduction in model space dimension is shown to increase computational efficiency, accelerating tomographic inversion by several orders of magnitude, while the enhanced sensitivity tolerates higher noise levels up to several orders of magnitude larger than standard methods.
Electrical and mechanical limits of ex situ MgB2 wires for cabling
Authors: Kováč P , Búran M , Kováč J , Melišek T , Hušek I , Berek D , Mauceri P , Spina T , Bruzek Ch-E 
Published: April 2024

Abstract
One of the objectives of the SCARLET project is to develop and industrially manufacture superconducting MgB2 cables cooled by liquid hydrogen. The ex situ powder-in-tube MgB2 wires manufactured by ASG are considered for the cable design that can carry DC current of 20 kA. These braided superconducting wires, containing brittle filaments, require high current. Thus, the study of the electro-mechanical properties of MgB2 wires is crucial for the cable design and its functional use. Superconducting wires have to withstand all the stresses applied during the cabling process, installation, and operations at the temperature of around 20 K. Hence, several configurations of MgB2/Ni/Monel composite wires have been subjected to detailed electrical and mechanical characterizations, which allow the estimation of the stress limits during the manufacturing of the designed cable. These experiments demonstrated that the maximal tensile stress applied to the wire at room temperature should be below 180–200 MPa, and safety bending observed for the outer filament strains was below 0.3%–0.35%. It is also revealed that the limit of acceptable torsion (expressed by the twist pitch to wire diameter L
t/d
w) is affected by the filament architecture and wire diameter. This limit should be above 100 for 1 mm wire and above 150 for 1.53 mm wire.
Quantum G-coherence factorization law under fully and strictly incoherent operations
Authors: Zhao Xinzhi , Shao Jianwei , Zheng Yi , Zhang Wen-Zhao , Zhang Chengjie 
Published: April 2024

AbstractQuantum coherence plays an important role in quantum resource theory, which is strongly related with entanglement. In order to quantify the full coherence of qudit states, we define G-coherence and convex roof of G-coherence, and prove that the G-coherence is a strong coherence monotone and the convex roof of G-coherence is a coherence measure under fully and strictly incoherent operation (FSIO), respectively. Similar to the entanglement factorization law, we prove a coherence factorization law for arbitraryd-dimensional quantum pure and mixed states under FSIO channels, which generalizes the entanglement factorization law for bipartite pure states. Our results will play an important role in the simplification of dynamical coherence measure.