bluuebunny/crossref_metadata_2025_split huggingface dataset:
Visualisation of Studies on Knee Injuries in Football: A Bibliometric Analysis
Authors: Yildiz Muhammed 
Published: August 2024

AbstractFootball is a popular sport on a global scale, and injuries sustained by football players have become a significant concern for sports physicians and researchers. Among these injuries, knee injuries are a commonly encountered problem in football players with long-term effects. This paper aims to perform a visual mapping and a bibliometric analysis of research on knee injuries in football, examining the current state and research trends. For this purpose, all publications from the Social Sciences Citation Index (SSCI), Science Citation Index Expanded (SCIE), Emerging Sources Citation Index (ESCI), and Arts & Humanities Citation Index (AHCI) within the Web of Science database were analysed. VOSviewer 1.6.18 was utilised for visualising bibliometric data. A total of 2159 publications were included in the study. The analysis covers publication year, authors, citation counts, and distributions among publishing journals. Authors, institutions, and international relationships were investigated, and keyword analysis, bibliometric coupling, and co-citation network analyses were conducted. The findings reveal that the United States and Australia are the countries with the highest number of publications. From 2018, there has been a noticeable increase in the number of publications. Citation and publication counts reached their peak in 2021. Turkey takes the 28th rank in terms of citation and centrality. The keywords “soccer,” “football,” “knee”, and “anterior cruciate ligament” were found to be intensively used with high centrality. In conclusion, visual mapping through bibliometric analysis highlights the magnitude and diversity of research in the field of knee injuries in football. It emphasises the need for further studies in this area for future researchers, shedding light on important research areas. Moreover, it provides insights into the prevention of such injuries in football players and the development of effective treatment strategies by fostering more knowledge and understanding of knee injuries.
Kopfschmerzen aus der Perspektive der Classical Osteopathy
Authors: Schabel Kai 
Published: August 2024

ZusammenfassungInnerhalb der Osteopathie existieren verschiedenste Behandlungskonzepte, alle auf den osteopathischen
Prinzipien aufbauend. Die Classical Osteopathy (CO) wählt einen konstitutionellen Zugang über den Weg der
Integration. Je nach Aktualität wird ein spezifischer oder ein globaler Ansatz gewählt. Der Beitrag geht
auf gutartige Kopfschmerzen wie Migräne, Spannungskopfschmerz, Cluster Headache oder Mischtypen ein. Das
Hauptaugenmerk der Classical Osteopathy liegt dabei auf der Wiederherstellung der physiologischen
Funktion und folgend auf dem Abbau der Gesamtläsion in Bezug auf die parietale, viszerale und
neurologische Vernetzung.
Advances in Transition-Metal Catalysis and Organocatalysis Approaches towards Asymmetric Synthesis of β-Amino Acid Derivatives
Authors: Sajjad Farrukh , Zhang Shuyue , Xu Ming-Hua 
Published: August 2024

AbstractThe stereoselective synthesis of β-amino acids has attracted major attention among the synthetic community in recent years. This review provides an overview of the important advances in chiral β-amino acid synthesis over the past decade. It covers the development of enantioselective methods using transition-metal complexes or organocatalysts, mainly including catalytic asymmetric hydrogenation, the Mannich reaction, multicomponent reactions of diazo compounds, and conjugate addition. Additionally, the asymmetric synthesis of optically active β-amino acids by other approaches are also summarized.1	Introduction2	Strategies towards the Asymmetric Synthesis of β-Amino Acids2.1	Hydrogenation2.2	Mannich Reaction2.3	Conjugate Addition2.4	Multicomponent Reactions2.5	Miscellaneous2.5.1	Synthesis of β-Amino Acids from Chiral Amines2.5.2	Synthesis of β-Amino Acids from Isoxazolidinones2.5.3	Synthesis of β-Amino Acids by Other Methodologies3	Summary and Outlook
Gold(I)-Catalyzed Intramolecular C(sp3)–H Bond Functionalization
Authors: Miguélez Rubén , Arto Omar , Rodríguez-Arias Carlos , Barrio Pablo 
Published: August 2024

AbstractThe merger of two of the most rapidly growing fields in catalysis, namely gold-catalysis and C–H activation/functionalization has resulted in major breakthroughs, affording unprecedented transformations. This review covers the most relevant contributions in this field during the last 10 years, restricted to the intramolecular functionalization of C(sp3)–H bonds.1	Introduction2	Carbene/Vinylidene Insertion3	[1,5]-H Shift4	Gold-Stabilized Vinyl Cation Mediated5	Summary and Outlook
Rethinking Fistula Preservation in Anorectal Malformation Surgery: A Histopathological Perspective
Authors: Agarwal Preeti , Roy Shubhajeet , Pandey Anand , Tyagi Nirpex , Pant Nitin , Kumar Piyush , Rawat Jiledar 
Published: August 2024

Abstract
Objective This study aims to assess the histopathological characteristics of the fistulous tissue in males with anorectal malformation (ARM) to determine its suitability for use in constructing a neoanus.
Methods This prospective observational study included male ARM patients with recto-urethral fistula. All other types were excluded. The tissue specimens comprised 0.5 to 2.0 cm of the most distal part of the rectal pouch and the fistulous tissue. Hematoxylin and eosin-stained sections were prepared. Histological features, viz. internal sphincter, anal grand and crypts, ganglion cells, presence of subepithelial fibrosis, thickened nerve trunks, and metaplasia, were evaluated.
Results Of 65 patients of ARM admitted, 24 met the inclusion criteria. Gross and microscopic internal sphincter was not found in any sample. The anal mucosa was visualized in all samples; however, crypts were irregular and distorted architecture was seen in 4 (16.67%) samples. Urothelial metaplasia was identified in 10 (41.67%) samples. Adequate ganglion cells were seen only in 6 (25%) samples. Significant submucosal fibrosis was seen in all samples. Thickened nerve trunks were identified in 4 (16.67%) samples.
Conclusions All normal anal histological features could not be found together in the fistula tissue. With the absence of normal features, such as internal anal sphincter muscles, and the presence of abnormal histopathological features, such as subepithelial fibrosis, thickened nerve trunks, and metaplasia, there are high chances of abnormal bowel function like constipation if the fistulous tissue is used for neoanus construction. It may have an impact on the quality of life of patients.
Initial Outcomes following Fresh Meniscus Allograft Transplantation in the Knee
Authors: Cook James L. , Stannard James P. , Rucinski Kylee J. , Nuelle Clayton W. , Crecelius Cory R. , Cook Cristi R. , Ma Richard 
Published: August 2024

AbstractBased on recent evidence-based advances in meniscus allograft transplantation (MAT), fresh (viable) meniscus allografts have potential for mitigating key risk factors associated with MAT failure, and preclinical and clinical data have verified the safety of fresh meniscus allografts as well as possible efficacy advantages compared with fresh-frozen meniscus allografts. The objective of this study was to prospectively assess clinical outcomes for the initial cohort of patients undergoing MAT using fresh meniscus allografts at our center. Patients who were prospectively enrolled in a dedicated registry were included for analyses when they had undergone primary MAT using a fresh meniscus allograft for treatment of medial and/or lateral meniscus deficiency with at least 1-year follow-up data recorded. Forty-five patients with a mean final follow-up of 47.8 months (range = 12–90 months) were analyzed. The mean patient age was 30.7 years (range = 15–60 years), mean body mass index (BMI) was 29.7 kg/m2 (range = 19–48 kg/m2), and 14 patients (31%) were females. In total, 28 medial, 13 lateral, and 4 combined medial and lateral MATs with 23 concurrent ligament reconstructions and 2 concurrent osteotomies were included. No local or systemic adverse events or complications related to MAT were reported for any patient in the study. Treatment success rate for all patients combined was 91.1% with three patients requiring MAT revision and one patient requiring arthroplasty. Treatment failures occurred 8 to 34 months after MAT and all involved the medial meniscus. None of the variables assessed were significantly different between treatment success and treatment failure cohorts. Taken together, the data suggest that the use of fresh (viable) meniscus allografts can be considered a safe and effective option for medial and lateral MAT. When transplanted using double bone plug suspensory fixation with meniscotibial ligament reconstruction, fresh MATs were associated with a 91% success rate, absence of local or systemic adverse events or complications, and statistically significant and clinically meaningful improvements in patient-reported measures of pain and function at a mean of 4 years postoperatively.
Wattmeter based on tunnel-effect magnetoresistance sensor
Authors: Soriano-Díaz S. , Ramírez-Muñoz D. , García-Gil R. , Cardoso S. , Freitas P. P. 
Published: August 2024

This work shows how the tunnel-effect based magnetoresistance (TMR) technology can be used as a competitive sensing method in electrical current and power processors. The sensor is arranged in a Wheatstone bridge topology, and each magnetoresistance was composed of a series connection of 360 magnetic tunnel junction elements with the following structure (thickness in nm): 100 SiO2/5 Ta/15 Ru/5 Ta/15 Ru/5 Ta/5 Ru/20 IrMn/2 CoFe30/0.85 Ru/2.6 CoFe40B20/1.2 MgO/2 CoFe40B20/0.21 Ta/4 NiFe/0.20 Ru/6 IrMn/2 Ru/5 Ta/10 Ru. First, the electrical and thermal characteristics of the sensor were evaluated by analyzing its response to DC current sweeps at various temperatures, controlled using a climatic chamber. Nominal values of current sensitivity S (0.324 mV/A), bridge output offset voltage Vo,s,o (−37.1 mV), bridge input resistance Rinp,bridge (0.958 kΩ), and their thermal behavior were obtained (0.0036 mV/A°C, 0.079 mV/°C, and −0.31 Ω/°C). Second, an instrumentation system is introduced to characterize the sensor, measuring its sensitivity to AC line currents from the mains up to 10 Arms. Finally, an electronic wattmeter was developed showing the relevant quantities of its design. The circuit is able to interface a TMR Wheatstone bridge to an analog processor. Power and current measurements were obtained from a 150 Vrms AC mains 1.5 kW load with resistive and capacitive components, achieving less than 1% deviation over the expected values. The circuit shown can be used to interface these signals to more complex smart digital engines with active or reactive energy processing capabilities, while providing inherent high voltage isolation, thanks to its TMR measurement technology.
Investigating the impact of supply voltage fluctuations on phase noise in quartz crystal oscillators
Authors: Xu Lin , Ye Peng , Liao Shuang , Chen Cheng , Zhu Guibing , Tan Feng 
Published: August 2024

The impact of power supply voltage fluctuations on the phase noise of quartz crystal oscillators (XOs) remains an open issue. Currently, there is a lack of comprehensive analysis on this matter. This work presents a novel phase-noise drive sensitivity (PNDS) model for the XO to reveal its mechanism. This model based on five noise modulation processes demonstrates the distribution of the PNDS in the frequency domain clearly, and there exists a PNDS bandwidth fS that limits the supply voltage fluctuation, which is similar to the effect of the noise bandwidth of the classical Leeson model. Using the PNDS, we successfully predict the phase noise of a 10 MHz oscillator under different supply voltage noises. In addition, experimental results show that the PNDS floor is determined by the phase modulation of the sustaining amplifier, while the amplitude-frequency effect of the resonator and the tuning of the diode often play crucial roles in the near-carrier PNDS.
A 44-cm3 physics package for the high-performance pulsed optically pumped atomic clock
Authors: Hao Qiang , Yang Shaojie , Zheng Shuguang , Yun Peter , Ruan Jun , Zhang Shougang 
Published: August 2024

The pulsed optically pumped (POP) atomic clock has demonstrated unexpected performance in terms of frequency stability and drift. However, it remains a huge challenge to make this type of atomic clock more compact. Herein, we report the design of a miniaturized physics package, which is equipped with a magnetron microwave cavity holding a vapor cell of 1.3 cm internal diameter. The Zeeman transition spectrum reveals that the microwave cavity resonates in TE011-like mode. Based on a low-noise testbed, we also quantitatively analyze the relaxation time, linewidth, and noise sources of the resulting POP atomic clock. The population and coherence relaxation time are measured to be 3.16(0.16) and 2.97(0.03) ms under the temperature of 333 K, which are compatible well with the theoretical calculation. The Ramsey signal shows a contrast of 35% and a linewidth of 192 Hz. The total volume of the physics package is about 44 cm3, including a layer of magnetic shielding. The short-term frequency stability is measured to be 4.8 × 10−13τ−1/2 (where τ is the averaging time), which is mainly limited by the relative intensity noise of the laser system.
Numerical investigations on compressible thermal flows in high-speed water entry
Authors: Yang Liu , Xiang Junbang , Kang Huifeng , Wang Xiaoguang , Wen Chuang , Rao Zhonghao 
Published: August 2024

The high-speed entry of a projectile into water involves numerous physical phenomena, with temperature playing a significant role in these. In this study, numerical simulations are used to study projectile water entry at 700 m/s under non-isothermal conditions, with the accuracy of the simulation method first being verified with experimental data. The entry process is divided into three stages: initial, intermediate, and complete. Initially, impact kinetic energy causes a sudden temperature increase, with the temperature distribution and shock waves exhibiting similarities. In the intermediate stage, thermal wake development and phase changes in the cavity formed by impact cause temperature variations. In the complete stage, the projectile becomes fully submerged, the thermal wake diminishes, and cavity expansion consumes energy, reducing both temperature and pressure. The air cushion phenomenon has a significant effect on pressure, but a relatively weak influence on temperature. Vortex monitoring reveals a decrease in tail temperature due to double-vortex cancellation, and relative flow within the cavity affects temperature changes. Velocity and temperature monitoring indicate a sharp increase, oscillation, and eventual stabilization in temperature. Cavitation-induced phase changes primarily drive temperature variations, while condensation of water vapor reduces temperature. This paper addresses the lack of considerations of thermal effects in previous studies of high-speed water entry, thereby providing a new perspective on this topic.
Increasing stability of the acoustic and elastic inverse source problems in multi-layered media
Authors: Wang Tianjiao , Xu Xiang , Zhao Yue 
Published: August 2024

Abstract
This paper investigates inverse source problems for the Helmholtz and Navier equations in multi-layered media, considering both two and three-dimensional cases respectively. The study reveals a consistent increase in stability for each scenario, characterized by two main terms: a Hölder-type term associated with data discrepancy, and a logarithmic-type term that diminishes as more frequencies are considered. In the two-dimensional case, measurements on interfaces and far-field data are essential. By employing the fundamental solution in free-space as the test function and utilizing the asymptotic behavior of the solution and continuation principle, stability results are obtained. In the three-dimensional case, measurements on interfaces and artificial boundaries are taken, and the stability result can be derived by applying the arguments for inverse source problems in homogeneous media.
Pseudo-differential integral autoencoder network for inverse PDE operators
Authors: Chen Ke , Lai Jasen , Wang Chunmei 
Published: August 2024

Abstract
Partial differential equations (PDEs) play a foundational role in modeling physical phenomena. This study addresses the challenging task of determining variable coefficients within PDEs from measurement data. We introduce a novel neural network, ‘pseudo-differential IAEnet’ (pd-IAEnet), which draws inspiration from pseudo-differential operators. pd-IAEnet achieves significantly enhanced computational speed and accuracy with fewer parameters compared to conventional models. Extensive benchmark evaluations are conducted across a range of inverse problems, including electrical impedance tomography, optical tomography, and seismic imaging, consistently demonstrating pd-IAEnet’s superior accuracy. Notably, pd-IAEnet exhibits robustness in the presence of measurement noise, a critical characteristic for real-world applications. An exceptional feature is its discretization invariance, enabling effective training on data from diverse discretization schemes while maintaining accuracy on different meshes. In summary, pd-IAEnet offers a potent and efficient solution for addressing inverse PDE problems, contributing to improved computational efficiency, robustness, and adaptability to a wide array of data sources.
Silicon-based perovskite plasmonic diode with highly polarized emission
Authors: Mao Xin-Rui , Chu Zihao , Yi Xiaogen , Cong Riyu , Li Yanping , Xu Wanjin , Ran Guangzhao 
Published: August 2024

Abstract
Here, we propose and develop a silicon (Si)-based perovskite plasmon-emitting diode (PED) with controlled linear polarization in this study. Such polarization originates from the efficient excitation of surface plasmons by excitons in the active layer of the device and the efficient outcoupling by a wedged boundary of a metal electrode. Furthermore, a p-type Si substrate serves as an anode of the diode, and a hole blocking layer of SiO2 is introduced in the PEDOT:PSS/Si heterojunction for carrier injection balance. Pure green emission light has been achieved from devices with varied thicknesses of the emitting layer, and the maximum degree of polarization is measured to be 0.79. The field distribution and polarization of the PED were simulated and measured. Such a low-cost Si-based plasmonic diode provides a promising way to realize simpler and more compact multiple-functional light sources, which are extensively demanded for optoelectronic integration.
On adhesive contact between spheres with rolling adhesion
Authors: Ma Zhao-Yang , He Jin-Shan , Huang Gan-Yun , Ke Liao-Liang 
Published: August 2024

Abstract
The tendency of relative motion via rolling between contacting objects exists in various aspects of industry and nature because, in many practical situations, forces and moments may be simultaneously induced at the contacting interfaces. Due to the presence of adhesion, which may be prominent on small scales, research on contacts with the tendency to roll, termed herein as rolling adhesion, is very limited. In the present work, a novel double-Hertz model is developed for adhesive contact between spherical objects subjected to the combined action of normal forces and moments. The results from the new model agree well with available numerical simulations and experimental results. It has been demonstrated that the contact behavior with the effect of rolling adhesion seemingly resembles that of conventional adhesive contact, but the applied moment may impact the pull-off force and may even induce novel contact instability if large enough. The resistance moment at the interface has also been obtained analytically, which is proportional to adhesion hysteresis and contact area. Given the applicability to the full range of the Tabor parameter and nonsingular stresses involved, these results might shed light on adhesive contacts with rolling adhesion and help to characterize them better than existent models.
Investigation and modeling of the role of interface defects in the optical degradation of InGaN/GaN LEDs
Authors: Roccato Nicola , Piva Francesco , Buffolo Matteo , Santi Carlo De , Trivellin Nicola , Haller Camille , Carlin Jean-François , Grandjean Nicolas , Meneghesso Gaudenzio , Zanoni Enrico , Meneghini Matteo 
Published: August 2024

Abstract
We investigate the degradation mechanisms of In0.2Ga0.8N/GaN light emitting diodes through combined experimental analysis and simulations. The devices were submitted to constant current stress at 100 mA. Depending on the measuring current level, two degradation trends were observed: at high test currents (e.g. 200 mA), a monotonic decrease in optical power was observed; at low test currents (e.g. 5 mA), an initial degradation was observed, followed by an improvement in device efficiency (positive ageing). For the first time, such recovery effect was analyzed and modeled, as due to the generation of charged defects at the InGaN/GaN interface, resulting in the increase in the injection efficiency at low bias levels. The role of interface defects was validated by means of numerical simulations, with good agreement with the experimental data.
Layer-by-layer assembly of a [Fe-(pyrazine){Pd(CN)4}] spin crossover thin film
Authors: McElveen Kayleigh A , Hao Guanhua , Evans Prescott E , Ekanayaka Thilini K , N’Diaye Alpha T , Chin Wai Kiat , Lai Rebecca Y 
Published: August 2024

Abstract
[Fe-(pyrazine){Pd(CN)4}] (pyrazine = pz) thin films were fabricated using a layer-by-layer assembly approach, a method known to be tunable, versatile, and scalable, since thin films are better-suited for industrial applications. In this study, [Fe-(pz){Pd(CN)4}] powder was synthesized, and the results obtained from a vibrating sample magnetometer verified the presence of an abrupt hysteresis loop with widths of 45 K centered around 300 K, indicating good cooperativity. Super conducting quantum interference device magnetometry results indicated a slow spin transition with temperature but with evidence of hysteresis for thin film samples. X-ray absorption analysis provided further support of the spin crossover behavior but differs from the magnetometry because the spin state transition at the surface differs from the bulk of the thin film. X-ray photoelectron spectroscopy provided some insight into issues with the film deposition process and multiplex fitting was used to further support the claim that the surface of the film is different than the bulk of the film.