bluuebunny/crossref_metadata_2025_split huggingface dataset:
A machine learning-based approach for constructing remote photoplethysmogram signals from video cameras
Authors: Castellano Ontiveros Rodrigo , Elgendi Mohamed , Menon Carlo 
Published: June 2024

Abstract
Background
Advancements in health monitoring technologies are increasingly relying on capturing heart signals from video, a method known as remote photoplethysmography (rPPG). This study aims to enhance the accuracy of rPPG signals using a novel computer technique.

Methods
We developed a machine-learning model to improve the clarity and accuracy of rPPG signals by comparing them with traditional photoplethysmogram (PPG) signals from sensors. The model was evaluated across various datasets and under different conditions, such as rest and movement. Evaluation metrics, including dynamic time warping (to assess timing alignment between rPPG and PPG) and correlation coefficients (to measure the linear association between rPPG and PPG), provided a robust framework for validating the effectiveness of our model in capturing and replicating physiological signals from videos accurately.

Results
Our method showed significant improvements in the accuracy of heart signals captured from video, as evidenced by dynamic time warping and correlation coefficients. The model performed exceptionally well, demonstrating its effectiveness in achieving accuracy comparable to direct-contact heart signal measurements.

Conclusions
This study introduces a novel and effective machine-learning approach for improving the detection of heart signals from video. The results demonstrate the flexibility of our method across various scenarios and its potential to enhance the accuracy of health monitoring applications, making it a promising tool for remote healthcare.
Electric effects reinforce charge carrier behaviour for photocatalysis
Authors: Shu Aoqiang , Qin Chencheng , Li Miao , Zhao Luna , Shangguan Zichen , Shu Zihan , Yuan Xingzhong , Zhu Mingshan , Wu Yan , Wang Hou 
Published: June 2024

Recent studies on enhancing charge carrier behavior through electric effects for efficient photocatalysis are summarized, evaluating the in-depth function of these effects. This provides unique perspectives to optimize photocatalytic processes.
A composite spread spectrum sequence for underwater acoustic signal acquisition
Authors: Zhang Chenyu , Wu Huabing 
Published: June 2024

AbstractSpread spectrum technology has been widely employed for positioning and communicating with autonomous underwater vehicles (AUVs), but conventional spread spectrum sequences lack confidentiality and reliability in UWA channel. Considering the limitations of conventional sequences and the characteristics of underwater acoustic (UWA) channel, a composite chaotic orthogonal sequence (CCOS) based on the UWA channel is proposed. The confidentiality of the CCOS is superior to that of the m‐sequence, while the autocorrelation performance of the CCOS is superior to that of the orthogonal sequence. Moreover, the CCOS can compensate for the imbalance of logistic chaotic sequence when assigned certain initial values. Acquisition is a crucial component of accessing the spread spectrum signal; therefore, the acquisition performance indicates the applicability of the CCOS. The source–target model is established to simulate communication with an underwater moving target. To simulate the acquisition process, a parallel algorithm based on fast Fourier transform is adopted, and the entire simulation process is completed based on the BELLHOP ray acoustic model. Through data processing, the Doppler shift error is less than half of the frequency‐search element. Furthermore, the acquisition probabilities of the CCOS with different numbers of bits are over 90%, which demonstrates the reliability of the CCOS.
Quantum‐inspired Arecanut X‐ray image classification using transfer learning
Authors: Naik Praveen M. , Rudra Bhawana 
Published: June 2024

AbstractArecanut X‐ray images accurately represent their internal structure. A comparative analysis of transfer learning‐based classification, employing both a traditional convolutional neural network (CNN) and an advanced quantum convolutional neural network (QCNN) approach is conducted. The investigation explores various transfer learning models with different sizes to identify the most suitable one for achieving enhanced accuracy. The Shufflenet model with a scale factor of 2.0 attains the highest classification accuracy of 97.72% using the QCNN approach, with a model size of 28.40 MB. Out of the 12 transfer learning models tested, 9 exhibit improved classification accuracy when using QCNN models compared to the traditional CNN‐based transfer learning approach. Consequently, the exploration of CNN and QCNN‐based classification reveals that QCNN outperforms traditional CNN models in accuracy within the transfer learning framework. Further experiments with qubits suggest that utilising 4 qubits is optimal for classification operations in this context.
Dedicated cautery-enhanced tubular self-expandable metal stent for endoscopic ultrasound-guided hepaticogastrostomy: feasibility study
Authors: Vargas-Madrigal Jorge , Chan Shannon M. , Dhar Jahnvi , Teoh Anthony Y.B. , Samanta Jayanta , Lakhtakia Sundeep , Giovannini Marc 
Published: June 2024

Abstract
Background Endoscopic ultrasound-guided hepaticogastrostomy (EUS-HGS) is an alternative for biliary drainage in patients with obstructive pancreaticobiliary pathology when endoscopic retrograde cholangiopancreatography (ERCP) is not feasible. Despite its effectiveness, EUS-HGS is associated with a significant risk of adverse events. This study aimed to evaluate the feasibility and safety of a newly designed dedicated cautery-enhanced tubular self-expandable metal stent (SEMS) for EUS-HGS.
Methods This multicenter prospective study included patients with malignant biliary obstruction in whom ERCP had failed because of tumor infiltration, inability to drain the intrahepatic ducts, or surgically altered anatomy. A dedicated cautery-enhanced tubular SEMS was used for EUS-HGS. Technical and clinical success rates, procedure times, and adverse events were evaluated.
Results 20 patients underwent EUS-HGS with the dedicated stent. Technical and clinical success rates of 100% were achieved, with no reported severe adverse events or mortality. The median procedure time was 16 minutes. Recurrent biliary obstruction was observed in 1 patient.
Conclusions The dedicated cautery-enhanced tubular SEMS for EUS-HGS can simplify the procedure and enhance its safety and efficacy. This innovation shows promise for improving patient outcomes, although further studies are needed to validate these findings in a broader patient population.
Aneurisma de arteria cubital y síndrome del martillo hipotenar
Authors: García Nieto Beatriz , Ki Yoo Young Woon , Escolano González Laura , Pastor Alconchel Laura , Bernardos Alcalde María Concepción , Marzo Álvarez Ana Cristina 
Published: June 2024

ResumenEl síndrome del martillo hipotenar es una patología vascular poco frecuente que produce una degeneración aneurismática de la arteria cubital a su paso por el canal de Guyon. Se suele dar en trabajadores expuestos a microtraumatismos de repetición en eminencia hipotenar; por ello, algunos autores lo consideran una enfermedad profesional. La clínica varía según el tamaño del aneurisma y la inestabilidad de su contenido. Para el diagnóstico, es necesario realizar una adecuada anamnesis y exploración física del paciente, así como tener un elevado índice de sospecha. Su tratamiento varía desde el médico conservador hasta la cirugía reconstructiva, dependiendo de la permeabilidad y de la integridad vascular del arco palmar. Se presenta un caso clínico de varón de 67 años con aparición de tumoración pulsátil dolorosa en eminencia hipotenar tras realizar trabajos de reforma. Mediante angiorresonancia, se confirmó la sospecha clínica, y se procedió a la resección del aneurisma parcialmente trombosado con posterior reconstrucción arterial.
Gathering Dust—Resistance to Simulator-based Deliberate Practice in Microsurgical Training
Authors: Temple-Oberle Claire F. , Harrop A. Robertson , Webb Carmen E. , Somerville Susan G. 
Published: June 2024

Abstract
Background Despite unrestricted access to a simulated microsurgery model, learners have not consistently self-regulated their learning by completing practice. This paper explores the lived experience of learners regarding how practice is perceived and why it is resisted.
Methods A qualitative study was conducted, including recorded and transcribed focus groups and semistructured interviews. First and second pass coding was conducted by one reviewer, with feedback from another. Transcripts were analyzed with a constant comparative approach customary to thematic analysis. Theory was engaged to help explain and support the findings.The study was undertaken at the University of Calgary plastic surgery residency training program in Calgary, Alberta, Canada, involving 15 informants (9 residents and 6 surgeons).
Results Four themes emerged: (1) barriers to practice, (2) motivation to practice, (3) owning learning/solutioning, and (4) expectations of practice. Competing priorities and time constraints were barriers. Motivation to practice ranged from extrinsic (gaining access to the next course) to intrinsic (providing optimal patient care). Learners described a range of ownership of learning and depth of effort at solutioning of practice opportunities. Learners expressed high expectations around model fidelity, ease of setup, and feedback. Learners self-regulating their learning, with surgeons acculturating practice at work, can overcome some barriers. As per self-determination theory (SDT), learners need explicit linkage to how the task aligns with their goals. Assessment may be required to motivate learners. In respect of adult learning theory, homework needs to be allocated by a respected trainer. Modeling simulation practice may encourage adult learners. Finally, the tenets of deliberate practice (DP) need to be explained in order that learners can optimize their practice time.
Conclusion Microsurgical simulation practice is valued but barriers exist that invite resolution. Assisting residents to overcome barriers, maintain motivation, take ownership, and assimilate DP will help improve their microsurgery practice.
Pseudoaneurisma traumático del arco palmar superficial: A propósito de un caso clínico
Authors: Garrido Ferrer Jose Felix , Cabanes Ferrer Isabel , Gazquez Gazquez Gemma , Marco Díaz Laura , Hernández Ferrando Lorenzo 
Published: June 2024

Resumen
Introducción El pseudoaneurisma traumático del arco palmar es una patología poco frecuente, con un manejo diagnóstico y terapéutico controvertido.
Reporte de Caso Presentamos el caso de un varón de 39 años que, tras una lesión incisocontusa en la eminencia tenar de la mano izquierda, desarrolló un pseudoaneurisma del arco palmar superficial. Se decidió realizar un estudio con angiotomografía y se planteó el tratamiento quirúrgico: ligadura y resección de la patología vascular.
Discusión Los traumatismos vasculares requieren un seguimiento de sus posibles complicaciones. La unión de la exploración física y de la alta sospecha diagnóstica permite el manejo terapéutico de la lesión. Hasta ahora, el tratamiento quirúrgico es el que aporta mejores resultados a corto y largo plazos.
Reconstrucción no biológica del ligamento colateral cubital de la articulación metacarpofalángica del pulgar: Un estudio retrospectivo de casos y controles
Authors: Barrera-Ochoa Sergi , Martínez-Garza Julio Adrian , Pereira-Cavaca Rita , Prieto-Mere Jose , Mendez-Sanchez Gerardo , Soldado Francisco 
Published: June 2024

Resumen
Objetivo El objetivo de este análisis retrospectivo fue cotejar los resultados posoperatorios de la reconstrucción ligamentosa no biológica (RLNB) para lesiones crónicas que involucran la articulación metacarpofalángica (AMCF) y el ligamento colateral cubital (LCC) del primer dedo.
Materiales y Métodos En total, 18 pacientes con lesión de la AMCF fueron sometidos a una reconstrucción ligamentosa estática no biológica y se incluyeron en este análisis retrospectivo de casos y controles. Se compararon las mediciones preoperatorias, posoperatorias y del pulgar contralateral (evaluación clínica, radiografías y cuestionarios de resultados subjetivos) durante una media de 38 meses de seguimiento.
Resultados Para la RLNB, la media de rangos de movimiento posoperatorios de las AMCF y de las articulaciones interfalángicas del pulgar fueron de 0 a 57,5° y de 0 a 71°, respectivamente. Las fuerzas promedio de agarre y pinza, en relación con la mano no afectada, fueron de 103,3% y 88,7%, respectivamente. Todos los pacientes demostraron estabilidad con un punto final firme en relación con el pulgar no afectado. La puntuación media en la versión corta del cuestionario de Discapacidades de Brazo, Hombro y Mano (Quick Disabilities of the Arm, Shoulder and Hand, QuickDASH, en inglés) entre todos los pacientes fue de 11,9 para el módulo de discapacidad/síntoma, 0 para el módulo de deportes, y 16,5 para el módulo de trabajo. Se informó rigidez en cuatro pacientes, y ningún paciente sufrió problemas relacionados con la herida u otras complicaciones.
Conclusión La RLNB del LCC del pulgar genera buenos resultados a corto plazo, lo que puede permitir una recuperación y rehabilitación aceleradas.
Differences and interactions between banks’ financial statements and prudential regulation
Authors: Mérő Katalin , Tardos Ágnes 
Published: June 2024

AbstractThe article analyzes the dichotomy between banks' financial statements and prudential regulatory requirements. While financial statements should be true and fair, prudential regulatory requirements focus on banks' soundness, riskiness and risk management practices. The lessons learned from the 2008 crisis have brought about significant changes in both bank accounting and banking regulation, which have led to a major transformation in both areas. Their development is characterized by a number of contradictions, differences and mutual interactions. In this article, we analyze three areas of European bank accounting and regulation that were of particular relevance to the 2008 crisis and the subsequent regulatory changes, and which are crucial for both today's bank accounting and banking regulation. These are as follows: the differences in the application of fair valuation of financial instruments; the issue of impairment accounting; and the differences in equity and regulatory own funds. We have identified different patterns of interaction across the three areas and have identified a number of areas for further research.
Impact of contact rotation on the vacuum arc root movement
Authors: Li Zhengbo , Fu Si , Cao Yundong 
Published: June 2024

This paper aims to investigate the dynamic characteristics of vacuum metal vapor arcs under rotating and traditional direct contact separation modes. Non-symmetrical pure copper electrodes with an anode radius of 7.5 mm and a cathode radius of 22.5 mm are employed in the experiments. The permanent magnet actuator provides an average opening speed of 1.0 m/s for cathode direct separation and 1–3 deg/ms for rotation. Results show that electrode rotation significantly influences the distribution and motion speed of the arc root on the cathode surface.
“So I know how to do this”
Authors: Reijven Menno H. 
Published: June 2024

Abstract
Debates are important events during presidential elections in the U.S.A. Candidates are juxtaposed and engage with
each other on a wide range of issues. This poses the question how disagreement between the two candidates and the public is
managed. The aim of this paper is to articulate the prototypical argumentative pattern used by candidates which shows that to
defend that the public should vote for them, candidates recurringly make three central claims. Specifically, they claim that some
political action has to happen, they will do that action if elected, while their opponent will not. This basic argument scheme –
which could be referred to as campaign promise argumentation – is further expanded by candidates by responding to six distinct
critical questions, resulting in a prototypical argumentative pattern designed to deal with potential criticisms against a bid to
become president.
Nonreciprocal Photon Blockade Based on Zeeman Splittings Induced by a Fictitious Magnetic Field
Authors: Su 苏 Xin 欣 , Jin 金 Biao-Bing 飚兵 , Tang 唐 Jiang-Shan 江山 , Xia 夏 Keyu 可宇 
Published: June 2024

Abstract
Quantum nonreciprocity, such as nonreciprocal photon blockade, has attracted a great deal of attention due to its unique applications in quantum information processing. Its implementation primarily relies on rotating nonlinear systems, based on the Sagnac effect. Here, we propose an all-optical approach to achieve nonreciprocal photon blockade in an on-chip microring resonator coupled to a V-type Rb atom, which arises from the Zeeman splittings of the atomic hyperfine sublevels induced by the fictitious magnetic field of a circularly polarized control laser. The system manifests single-photon blockade or multi-photon tunneling when driven from opposite directions. This nonreciprocity results from the directional detunings between the countercirculating probe fields and the V-type atom, which does not require the mechanical rotation and facilitates integration. Our work opens up a new route to achieve on-chip integrable quantum nonreciprocity, enabling applications in chiral quantum technologies.
Robust and Tunable Ferroelectricity in Ba/Co Codoped (K0.5Na0.5)NbO3 Ceramics
Authors: Liu 刘 Jiaxun 佳讯 , Zha 查 Jielin 节林 , Yang 杨 Yulong 玉龙 , Lu 吕 Xiaomei 笑梅 , Hu 胡 Xueli 雪莉 , Yan 阎 Shuo 朔 , Wu 吴 Zijing 子敬 , Huang 黄 Fengzhen 凤珍 
Published: June 2024

Abstract
The 0.98(K0.5Na0.5)NbO3-0.02Ba(Nb0.5Co0.5)O3–δ
ceramics with doped Ba2+ and Co2+ ions are fabricated, and the impacts of the thermal process are studied. Compared with the rapidly cooled (RC) sample, the slowly cooled (SC) sample possesses superior dielectric and ferroelectric properties, and an 11 K higher ferroelectric-paraelectric phase transition temperature, which can be attributed to the structural characteristics such as the grain size and the degree of anisotropy. Heat treatment can reversibly modulate the content of the oxygen vacancies, and in turn the ferroelectric hysteresis loops of the samples. Finally, robust and tunable ferroelectric property is achieved in SC samples with good structural integrity.
Solving, tracking and stopping streaming linear inverse problems
Authors: Pritchard Nathaniel , Patel Vivak 
Published: June 2024

Abstract
In large-scale applications including medical imaging, collocation differential equation solvers, and estimation with differential privacy, the underlying linear inverse problem can be reformulated as a streaming problem. In theory, the streaming problem can be effectively solved using memory-efficient, exponentially-converging streaming solvers. In special cases when the underlying linear inverse problem is finite-dimensional, streaming solvers can periodically evaluate the residual norm at a substantial computational cost. When the underlying system is infinite dimensional, streaming solver can only access noisy estimates of the residual. While such noisy estimates are computationally efficient, they are useful only when their accuracy is known. In this work, we rigorously develop a general family of computationally-practical residual estimators and their uncertainty sets for streaming solvers, and we demonstrate the accuracy of our methods on a number of large-scale linear problems. Thus, we further enable the practical use of streaming solvers for important classes of linear inverse problems.
X-ray study on the core collapse supernova 2008ax using XMM-Newton and Swift/XRT
Authors: Fouad Ahmed M , Shehata SH M , Pawar Devraj D , Awad Zainab , Takey Ali , Dwidar Hany 
Published: June 2024

Abstract
We studied the x-ray evolution of the core collapse, Type IIb, supernova SN 2008ax. In addition to the four Swift/XRT observations previously published, we included, for the first time, two observations from XMM-NEWTON to our analysis that have not been published before. By focusing on the early observations of the SN 2008ax, we were able to explore the time evolution of both x-ray luminosity (Lx) and temperature (Tx) during the radiative phase. The analysis showed that the evolution of Lx and Tx can be expressed as a power law as Lx ∝ t −0.87 and Tx ∝ t −0.46, respectively. Based on the observed x-ray luminosity, we estimated the mass-loss rate (

M

̇

) for the progenitor star to be approximately 0.64 ± 0.15 × 10−5 M⊙ yr −1, for a wind velocity of 10 km s−1. This finding is in good agreement with the previous studies.
Sub-megahertz compact self-pulsed Raman laser
Authors: Sun Peng , Liu Siyuan , Zhang Ye , He Hongsen , Dong Jun 
Published: June 2024

Abstract
Broadband self-pulsed Raman laser operating at sub-megahertz (sub-MHz) has been widely used in optical sensing, high-spectral-resolution lidar, frequency-division multiplexing, and optical communication. However, it is a big challenge for achieving stable self-pulsed Raman laser oscillation in a wide pump power range. Here, we construct a compact Yb:YAG/YVO4 Raman laser for generating broadband self-pulsed laser operating at high repetition rate. The effects of cavity length (LC) and Raman crystal length (LR) on the performance of self-pulsed Raman laser have been investigated. By utilizing a 1.5 mm-thick YVO4 crystal as a Raman crystal, the repetition rate increases dramatically from 62 to 280 kHz when the LC decreases from 10 to 4 mm. Meanwhile, the pulse width of 0.66 μs and peak power of 1.1 W are achieved for the self-pulsed Raman laser with LC = 4 mm. For the 4 mm-long Raman laser cavity constructed with a 2 mm-thick YVO4 crystal, the pump power range enable for self-pulsed Raman laser oscillation extends from 1.8 to 3.9 W, the repetition rate has been further increased from 258 to 467 kHz. While the peak power and pulse width are 0.6 W and 0.98 μs, respectively. The Yb:YAG/YVO4 self-pulsed Raman laser oscillates in broadband multi-longitudinal-mode, the spectral bandwidth is 27.4 nm covering from 1051.1 to 1078.5 nm. Utilization of a tilted 2 mm-thick YVO4 crystal as output coupler to construct compact Yb:YAG/YVO4 self-pulsed Raman laser dramatically expands the pump power range for generating high repetition rate self-pulsed Raman laser. Sub-MHz self-pulsed Raman lasers with a wide spectral bandwidth have potential applications in materials processing, quantum information processing, and optical communications.
C-doped MoSeTe for SO2, H2S, Cl2 gas sensing study based on first-principles
Authors: Zhong Yifei , Pang Jianhua , Wei Guang , Wang Kuanyi , Wei Songrui 
Published: June 2024

Abstract
In this paper, the feasibility of C-doped MoSeTe and the adsorption properties of several common toxic gases (SO2, H2S, Cl2) on Janus MoSeTe and both side of MoSeTe-C monolayers were systematically investigated based on first-principle theoretical calculations. The results show that the MoSeTe-C monolayers has only weak interaction with H2S, and the adsorption energies of SO2 and Cl2 are reduced to −0.547, −0.427 and −0.470, −0.475 eV on the Se/Te side, respectively, compared with that of the Janus MoSeTe monolayers . In addition, due to the high sensitivity of MoSeTe-C monolayers to SO2 and Cl2 adsorption, the bandgaps of the developed systems are reduced by 37.9%, 36.4% and 44.3%, 53.2% on both sides, respectively. The results are critical to manifest the favorable sensing potential of MoSeTe-C monolayer upon SO2 and Cl2, shedding light on the further explorations on MoSeTe-based materials for gas adsorption, catalytic and sensing applications.