bluuebunny/crossref_metadata_2025_split huggingface dataset:
Posterior Circulation Intervention but Mind the Spinal Cord!
Authors: Siddiqui Shahyan Mohsin , Prasad Chandrajit , Pendharkar Hima , Bhagavatula Indira Devi , Kulanthaivelu Karthik 
Published: October 2021

AbstractSpinal cord infarction (SCI), a rare complication following endovascular treatment of posterior circulation aneurysms, is infrequently recognized in the periprocedural period. We illustrate the same with digital subtraction angiography and diffusion-weighted magnetic resonance imaging in this series of two cases. Categorically, the anterior spinal artery was patent, post-procedure, in both instances. Likely, guiding catheter-induced local flow alterations initiates the pathogenesis. A subsequent insufficiency of radiculomedullary artery (RMA) reinforcements is the probable mechanism leading to hemodynamic compromise. Our observations further reiterate that periprocedural antiplatelet therapy is conceivably ineffective in preventing SCI. Besides, advanced age and uncontrolled hypertension could potentially exacerbate the periprocedural RMA compromise. Due vigilance is required to recognize this rare and potentially life-threatening complication in posterior circulation neurovascular intervention.
Zenker Diverticulum: Does Size Correlate with Preoperative Symptoms?
Authors: Martinez-Paredes Jhon F. , Alfakir Razan , Kasperbauer Jan L. , Rutt Amy 
Published: October 2021

Abstract
Introduction Zenker diverticulum (ZD) usually affects adults after the 7th decade of life. Treatment for ZD is indicated for all symptomatic patients, but some patients prefer to defer surgical treatment until symptoms get worse and decrease their quality of life.
Objective To evaluate the association of the preoperative symptoms in ZD patients with the size of the ZD.
Methods A retrospective study design. Electronic medical records were used to identify patients diagnosed with ZD and treated over 11 years. Data collection included the chief complaints and symptoms, medical history, and findings on radiologic swallow evaluations of the patients. The diverticulum size was stratified into 3 groups: small (< 1 cm), moderate (1–3 cm), and large (> 3 cm).
Results A total of 165 patients were enrolled and stratified by diverticulum size (48 small, 67 medium, and 50 large). Dysphagia, cough, and regurgitation were the most prevalent symptoms. Dysphonia was more frequent among patients with a small pouch. Logistic regression analysis showed that dysphagia and choking were associated with large and medium diverticulum size (p < 0.05). Additionally, dysphonia was significantly associated with the presence of a small-sized ZD (p < 0.04).
Conclusion Upper gastrointestinal symptoms such as dysphagia and choking may be associated with a ZD > 1 cm and should always be evaluated. Additionally, the presence of dysphonia was found to be correlated with a ZD < 1 cm, suggesting that a prompt and appropriate fluoroscopic evaluation must be considered in those patients in whom no other clear cause of dysphonia is evident.
Radiographic Evaluation of Elbow Fractures
Authors: Alidina Sameer , Alidina Jasim , Souza Felipe , Kalandiak Steven , Subhawong Ty K. 
Published: October 2021

AbstractFractures and dislocations of the elbow are a common cause of emergency department visits each year. Radiography remains the bedrock of an initial injury assessment, and recognition of distinctive injury patterns based on fracture location, morphology, and severity, guides optimal clinical decision-making. This article reviews basic elbow anatomy, frequently seen fractures and injury patterns, and highlights how these findings influence surgical planning and patient management.
Imaging Evaluation of Medial and Lateral Elbow Pain: Acute and Chronic Tendon Injuries of the Humeral Epicondyles
Authors: Daniels Steven P. , De Tolla Jadie E. , Azad Ali , Fritz Jan 
Published: October 2021

AbstractMedial and lateral elbow pain are often due to degenerative tendinosis and less commonly due to trauma. The involved structures include the flexor-pronator tendon origin in medial-sided pain and the extensor tendon origin in lateral-sided pain. Multimodality imaging is often obtained to verify the clinically suspected diagnosis, evaluate the extent of injury, and guide treatment decisions. Image-guided procedures can provide symptom relief to support physical therapy and also induce tendon healing. Surgical debridement and repair are typically performed in refractory cases, resulting in good to excellent outcomes in most cases. In this article, we review and illustrate pertinent anatomical structures of the distal humerus, emphasizing the structure and contributions of the flexor-pronator and extensor tendon origins in acute and chronic tendon abnormalities. We also discuss approaches to image-guided treatment and surgical management of medial and lateral epicondylitis.
Translation and Validation of the Indonesian MD Anderson Dysphagia Inventory (MDADI) in Head and Neck Cancer Patients with Swallowing Disorders
Authors: Fakhriani Rizka , Surono Agus , Rianto Bambang Udji Djoko 
Published: October 2021

AbstractIntroduction Dysphagia is common in head and neck cancer patients; it is associated with significant morbidity, including quality of life. Several instruments can be used to assess the quality of life of dysphagia patients, including the M.D Anderson dysphagia inventory (MDADI) questionnaire, which is sufficiently valid and reliable to improve the quality of life of patients with neurological disorders and head and neck cancer.Objective The purpose of the present study is to perform adaptation, cultural translation, and validation of the MDADI questionnaire for the Indonesian language.Methods This cross-sectional study assessed the validity and reliability of the MDADI Indonesian adaptation instrument in head and neck cancer patients with swallowing disorders in the Otorhinolaryngology clinic of the Dr. Sardjito hospital, Yogyakarta, from May to August 2019.Results There were 40 study subjects, including 31 men and 9 women. The MDADI instrument adapted to Indonesian is valid and reliable as an instrument for assessing the quality of life of patients with head and neck cancer with swallowing disorders, with r-values ranging from 0.314 to 0.939. Internal consistency shows that Cronbach's α is 0.915, and test-retest reliability (intra-class correlation) ranges from 0.919 to 0.985.Conclusion The translation and validation of the Indonesian MDADI instrument were performed as an instrument for assessing the quality of life of head and neck cancer patients with swallowing disorders.
Innovative mass spectrometer for high-resolution ion spectroscopy
Authors: Lee Yu Ran , Kwon Chan Ho 
Published: October 2021

Conventional ion spectroscopy is inapplicable for ions produced in low concentrations or with low spectral resolutions. Hence, we constructed a high-resolution vacuum ultraviolet mass-analyzed threshold ionization (HR VUV-MATI) spectrometer composed of a four-wave frequency mixing cell capable of generating long-lasting and intense VUV laser pulses of ∼1 × 1010 photons/pulse at wavelengths of 123.6–160.0 nm, a space-focused linear time-of-flight photoionization chamber with a new ion-source assembly, and a compact molecular beam chamber with a temperature-controlled pulsed nozzle for ion spectroscopy. The ion-source assembly and pulsing schemes enabled an ∼15-μs-delayed but extremely weak pulsed-field-ionization of the molecules in the zero-kinetic-energy (ZEKE) states and first-order space focusing of the generated MATI ions. These ZEKE states were effectively generated by a minute electric jitter from the high-lying Rydberg states, which were initially prepared via VUV photoexcitation. The spectral and mass resolutions (∼5 cm−1 and 2400, respectively) and the signal strength were simultaneously enhanced using this spectrometer. Moreover, it could be used to measure the fine vibrational spectrum from the zero-point level of the cation and the exact adiabatic ionization energy of the neutral molecule. Additionally, it could be used to measure the appearance energies of the photoproducts and elucidate the vibrational structures of the cationic isotopomers, utilizing other pulsing schemes. Furthermore, this spectrometer could be used to analyze the congested vibrational spectrum of a cation with multiple conformations. Thus, the HR VUV-MATI spectrometer—a potential alternative to photoelectron spectrometers—can be used to analyze the conformational structure-dependent reactivities.
Recent advances in UV photodetectors based on 2D materials: a review
Authors: Kumar Ashok , Khan Mustaque A , Kumar Mahesh 
Published: October 2021

AbstractSince the discovery of graphene there has been a strong interest in two-dimensional (2D) materials among the scientific community due to their extraordinary properties. Although ultraviolet (UV) photodetectors based on bulk wide bandgap semiconductors exhibit a good response, their photodetection performance significantly diminishes as their thickness is reduced to atomic scale, due to poor absorption and surface dangling bonds. 2D layered materials are free of dangling bonds and have a layer-dependent tunable bandgap and optoelectronic properties. Even an atomically thin layer of a 2D material shows high absorption due to strong light–matter interaction. 2D materials are attracting a lot of attention due to their compatibility with flexible, wearable devices and the ease of making van der Waals heterostructures. Although graphene and transition metal dichalcogenides have shorter band gaps, these materials can be easily integrated with other wide bandgap materials for UV detection, and such integration has often produced extraordinary device performance. Also, low bandgap, strong UV-absorbing 2D materials can be utilised for UV detection by using an optical bandpass filter. Recently, wide-bandgap 2D materials such as gallium sulphide (GaS), hexagonal boron nitride (hBN), and bismuth oxychlorides (BiOCls) have been explored for application in UV photodetection. Many of these wide bandgap materials show extraordinary UV photodetection performance.
Transient diffusion and thermal processes in a finite one-dimensional harmonic crystal
Authors: Krivtsov A M , Murachev A S , Tsvetkov D V 
Published: October 2021

Abstract
In this paper, an instant homogeneous thermal perturbation in the periodic one-dimensional harmonic crystal is studied. The exact solution for thermal and diffusive characteristics is obtained, namely, particle velocity dispersion (kinetic temperature) and particle displacement dispersion. It is found that thermal and diffusion processes demonstrate a quasi-periodic recurrence. The recurrence interval is equal to the time it takes the sound wave to travel the half-length of the crystal. The ‘thermal echo’ (sharp peaks in kinetic temperature) occurs in the system with the specified periodicity. Diffusion characteristics reveal large-scale time changes with a nearly complete return to the initial state at each quasi-period. It is also shown that the spatial mean squared displacements of particles are significantly different from the ensemble mean squared displacements.
Sulfur dopant-enhanced neutral hydrogen evolution performance in MoO3 nanosheets
Authors: Wang Lingchang , Qi Gaocan , Liu Xijun 
Published: October 2021

Abstract
Developing nonprecious-metal based catalysts with highly active and stable performance for hydrogen evolution reaction (HER) in neutral media is crucial points for realizing low-carbon economy because their practical use typically suffers from the slow kinetics. Herein, we developed S-doped MoO3 nanosheets toward neutral HER, fabricated by a versatile solvothermal and subsequently sulfuration processes. The obtained catalyst exhibits a small overpotential of 106 mV to reach 10 mA cm−2 in 1.0 M phosphate buffered saline, overwhelming most of recently reported catalysts. Meantime, it shows no notable deactivation after more than 60 h continuous electrolysis and 50 000 cycling tests. More importantly, the catalyst also can be applied in buffered seawater for electrocatalyzing HER, requiring 262 mV at 10 mA cm−2 and maintaining over 60 h. These findings open a new route for designing MoO3-based catalysts for neutral hydrogen production.
Functionalizing phenethylammonium by methoxy to achieve low-dimensional interface defects passivation for efficient and stable perovskite solar cells
Authors: Meng Fanbin , Shang Xueni , Gao Deyu , Zhang Wei , Chen Cong 
Published: October 2021

Abstract
Low dimensional interface passivation has been proved to be an efficient method to lessen the nonradiative recombination loss in perovskite solar cells. To overcome the limitation of Phenethylammonium (PEA+) for carrier transport and water molecule intrusion, we developed a modification strategy by functioning the typical PEA+ with the 4-methoxy to optimize the interface defects and carrier transport performance, thus maximizing the synchronous improvement of device efficiency and stability. Our results indicate that the 2 mg ml−1 4-methoxy-phenethylammonium (MeO-PEA+) modified device could achieve a best power conversion efficiency of 19.64% with improved shelf-life stability in ambient conditions. The new passivation molecule of MeO-PEA+ could possess the capability of defect passivation, carrier transfer, and moisture blocking, demonstrating that rationally designed organic components for interface passivation could help to achieve efficient and stable PSCs.
High-purity single photons obtained with moderate-NA optics from SiV center in nanodiamonds on a bullseye antenna
Authors: Waltrich Richard , Lubotzky Boaz , Abudayyeh Hamza , Steiger Elena S , Fehler Konstantin G , Lettner Niklas , Davydov Valery A , Agafonov Viatcheslav N , Rapaport Ronen , Kubanek Alexander 
Published: October 2021

Abstract
Coherent exchange of single photons is at the heart of applied quantum optics. The negatively-charged silicon vacancy center in diamond is among most promising sources for coherent single photons. Its large Debye–Waller factor, short lifetime and extraordinary spectral stability is unique in the field of solid-state single photon sources. However, the excitation and detection of individual centers requires high numerical aperture (NA) optics which, combined with the need for cryogenic temperatures, puts technical overhead on experimental realizations. Here, we investigate a hybrid quantum photonics platform based on silicon-vacancy center in nanodiamonds and metallic bullseye antenna to realize a coherent single-photon resource that operates efficiently down to low NA optics with an inherent resistance to misalignment.
Study on pedestal fluctuations in H-modes without large ELMs during the transition to a detached tungsten divertor in EAST
Authors: Ye Y. , Chen R. , Xu G.S. , Wang L. , Guo H.Y. , Zhou C. , Wang Y.F. , Xu J.C. , Lin X. , Wang Y.M. , Zang Q. , Duan Y.M. , Zhang L. , Liu J.B. , Wu X.Q. , Yang Q.Q. , Li G.S. , Wan B.N. 
Published: October 2021

Abstract
Simultaneous control of the damaging erosion induced by the transient and steady-state heat/particle fluxes on the divertor target material is one of the critical issues for next-step magnetic fusion devices. H-mode operation without large edge-localized modes has been achieved in EAST with an ITER-like tungsten divertor, while being compatible with the partial and pronounced detachment in divertor, via either ramping-up of bulk density or injection of low/high-Z impurities. The pedestal characteristics during the transition from the attached to the detached divertor and the reversed transition (detached to attached) under different detachment methods are studied in detail, where the evolution of multi fluctuating structures commonly residing in the H-mode pedestal of EAST (edge coherent mode (ECM), magnetic coherent mode (MCM) and high frequency mode (HFM)) is highlighted. In addition, the possible mechanisms that affect the behavior of these modes, such as the pedestal pressure gradient and the collisionality, have also been discussed. The radial structures of ECM, MCM and HFM are detected, for the first time, in one discharge. Relevant research may provide contribution to obtaining an integrated small/no ELM and radiative divertor scenario in the next step.
A study on shrinkage residual stresses, microstructure and mechanical properties of ASS thick pipe welded by GMAW process
Authors: Kumar Sudhir , Barla Nikki Archana , Anant Ramkishor , Kumar Saxena Kuldeep 
Published: October 2021

Abstract
In this investigation, AISI 304LN austenitic stainless steel pipes having 25 mm thickness and 300 mm inner diameter with conventional and narrow groove were welded by continuous current gas metal arc welding (GMAW) and pulse current gas metal arc welding (P-GMAW) process. A gas tungsten arc welding (GTAW) process was used for the welding of the root pass. Microstructural study was carried out in fusion zone (FZ) and heat-affected zone (HAZ). A favourable microstructure characteristic was observed in the P-GMAW process. The study of transverse shrinkage and shrinkage stresses were done on the conventional groove with GMAW and P-GMAW process and narrow groove by P-GMAW process. It was found that narrow groove weld design with controlled welding parameters can reduce 45% shrinkage as compare to conventional groove, similarly 30% reduction in shrinkage stress can be achieved. The tensile properties were observed to increased, such as yield strength was improved from 260 MPa to 310 MPa and ultimate strength was improved from 510 MPa to 550 MPa in the case of narrow groove weld by the P-GMAW process.
Broadband diffraction of correlated photons from crystal superlattices
Authors: Toa Zi S D , Paterova Anna V , Krivitsky Leonid A 
Published: October 2021

Abstract
Sources of broadband quantum correlated photons present a valuable resource for quantum metrology, sensing, and communication. Here, we report the generation of spectrally broadband correlated photons from frequency nondegenerate spontaneous parametric down-conversion in a custom-designed lithium niobate superlattice. The superlattice induces a nonlinear interference between the pump, signal and idler, resulting in an experimentally observed comb-like emission spanning 0.060 μm and 1.4 μm of spectral bandwidth at 0.647 μm and 3.0 μm wavelengths, respectively. While this broad mid-infrared bandwidth is attractive to quantum metrology and sensing due to the enablement of fast spectral multiplexing for data acquisition, the comb-like structure, achieved without an input frequency comb, offers targeted frequencies for quantum communication applications. In addition to useful technological applications, our concept offers an interesting analogy between optical diffraction in quantum and classical optics.
Experimental and numerical study of underwater piezoelectric generator based on Vortex-induced Vibration
Authors: Liu Min , Xia Hui , Liu Guoqiang 
Published: October 2021

Abstract
Efficient energy use to be transformed into electricity for small power devices has drawn increasing attention. A piezoelectric energy harvester is proposed to convert flow energy underwater to electrical energy. The harvester consists of the connecting device, springs, base, bluff body, piezoelectric cantilever beam and displacement sensor. The output voltage is derived from the flow-solid-electric coupling equations, including a nonlinear van der Pol equation, a linear equation of structural vibration and a piezoelectric equivalent circuit. Vibration response and output performance are obtained based on the finite central difference method. The theoretical results show that the vibration frequency, amplitude and average power increase with the limited water velocity. Furthermore, it is demonstrated that a proper selection of structure mass and load resistance can improve average harvested power for the available water velocity. Finally, the experimental prototype is fabricated to test piezoelectric generator performance at different water speeds, which shows good agreement with the theoretical results. This work provides a significant guide for the underwater use of piezoelectric energy harvesters.
Opinion formation on social networks with algorithmic bias: dynamics and bias imbalance
Authors: Peralta Antonio F , Kertész János , Iñiguez Gerardo 
Published: October 2021

Abstract
We investigate opinion dynamics and information spreading on networks under the influence of content filtering technologies. The filtering mechanism, present in many online social platforms, reduces individuals’ exposure to disagreeing opinions, producing algorithmic bias. We derive evolution equations for global opinion variables in the presence of algorithmic bias, network community structure, noise (independent behavior of individuals), and pairwise or group interactions. We consider the case where the social platform shows a predilection for one opinion over its opposite, unbalancing the dynamics in favor of that opinion. We show that if the imbalance is strong enough, it may determine the final global opinion and the dynamical behavior of the population. We find a complex phase diagram including phases of coexistence, consensus, and polarization of opinions as possible final states of the model, with phase transitions of different order between them. The fixed point structure of the equations determines the dynamics to a large extent. We focus on the time needed for convergence and conclude that this quantity varies within a wide range, showing occasionally signatures of critical slowing down and meta-stability.
KGANCDA: predicting circRNA-disease associations based on knowledge graph attention network
Authors: Lan Wei , Dong Yi , Chen Qingfeng , Zheng Ruiqing , Liu Jin , Pan Yi , Chen Yi-Ping Phoebe 
Published: October 2021

AbstractIncreasing evidences have proved that circRNA plays a significant role in the development of many diseases. In addition, many researches have shown that circRNA can be considered as the potential biomarker for clinical diagnosis and treatment of disease. Some computational methods have been proposed to predict circRNA-disease associations. However, the performance of these methods is limited as the sparsity of low-order interaction information. In this paper, we propose a new computational method (KGANCDA) to predict circRNA-disease associations based on knowledge graph attention network. The circRNA-disease knowledge graphs are constructed by collecting multiple relationship data among circRNA, disease, miRNA and lncRNA. Then, the knowledge graph attention network is designed to obtain embeddings of each entity by distinguishing the importance of information from neighbors. Besides the low-order neighbor information, it can also capture high-order neighbor information from multisource associations, which alleviates the problem of data sparsity. Finally, the multilayer perceptron is applied to predict the affinity score of circRNA-disease associations based on the embeddings of circRNA and disease. The experiment results show that KGANCDA outperforms than other state-of-the-art methods in 5-fold cross validation. Furthermore, the case study demonstrates that KGANCDA is an effective tool to predict potential circRNA-disease associations.