bluuebunny/crossref_metadata_2025_split huggingface dataset:
Impact of COVID-19 pandemic on business operations of Taiwan High Speed Rail and 7-Eleven stores
Authors: Liu Shih-Feng , Chang Hui-Chuan , Chang Yu-Ping , Kuo Ho-Chang , Tsai Yuh-Chyn , Lin Meng-Chih 
Published: April 2023

AbstractGovernmental non-pharmaceutical interventions (NPIs) and concerns regarding COVID-19 infection greatly affected population mobility during the COVID-19 pandemic. This study analyzed the effect of the COVID-19 pandemic on the business operations of Taiwan High Speed Rail (THSR) and 7-Eleven stores in Taiwan. We collected data from COVID-19 Mobility Reports published by Google, the Our World in Data website, and the monthly financial reports of THSR and 7-Eleven stores. The findings revealed that the mean population mobility at transit stations decreased by over 50% during the pandemic. Changes in population mobility were significantly associated with the reproduction rate (7-day rolling average) and with the daily number of new confirmed cases per million people (7-day rolling average). The operating income of THSR was significantly associated with the decrease in population mobility at transit stations. The monthly and annual operating income of THSR in 2020, 2021, and 2022 (during the pandemic) were significantly lower than those in 2019 (before the pandemic). THSR’s monthly operating income was lowest compared with the 2019 value during the Alpha variant period (89.89% lower). No significant correlation was noted between the operating income of 7-Eleven stores and population mobility. Moreover, no significant differences were discovered between the monthly and annual operating incomes of 7-Eleven stores in 2019 and those in 2020, 2021, and 2022. Implementation of the policy of coexistence with the virus by the Taiwanese government began in May 2022, and from May 2022 to October 2022, the monthly income of 7-Eleven stores was higher than that in 2019 whereas the monthly income of THSR began lower than and then slowly increased to the level in 2019. In conclusion, the operating performance of THSR was closely related to population mobility and government NPIs, whereas the operating performance of 7-Eleven stores was less strongly affected by NPIs. These stores increased their operating income by providing e-commerce and delivery services; they thus remained popular in the community.
A Survey of U.S. Audiologists' Usage of and Attitudes Toward Otoacoustic Emissions
Authors: Mertes Ian B. , Marquess Ali 
Published: April 2023

Purpose:
Otoacoustic emissions (OAEs) provide information on outer hair cell function and have multiple clinical applications. Two types of OAEs, transient-evoked OAEs (TEOAEs) and distortion product OAEs (DPOAEs), are currently utilized in clinical practice. However, it remains unknown how confident U.S. clinicians are in performing and interpreting TEOAEs and DPOAEs. Additionally, the extent to which U.S. audiologists incorporate OAEs for different clinical applications and populations has not been thoroughly investigated. To fill these gaps in knowledge, this study characterized the attitudes toward and usage of TEOAEs and DPOAEs in a sample of U.S. audiologists.

Method:
This study utilized an online survey distributed to U.S. audiologists through multiple channels from January to March 2021. A total of 214 completed surveys were included in the analysis. Results were analyzed descriptively. Associations between variables and comparisons between users of DPOAEs only and users of TEOAEs and DPOAEs were also examined.

Results:
DPOAEs were reportedly utilized more frequently and with greater confidence than TEOAEs. The most common clinical application of both OAE types was a cross-check. Significant associations were found between responses to DPOAE questions and the clinician's setting and patient age. There were some significant differences between users of DPOAEs only and users of TEOAEs and DPOAEs.

Conclusions:
Results suggest that U.S. audiologists utilize OAEs for multiple clinical purposes and that there are appreciable differences in terms of attitudes toward and usage of DPOAEs versus TEOAEs. Future work could investigate the reasons that underlie these differences to further improve clinical implementation of OAEs.
Research Note: Testing the Simple View of Reading in Adolescents and Adults With Down Syndrome
Authors: Loveall Susan J. , Conners Frances A. , Hubbard Katherine J. 
Published: April 2023

Purpose:
The Simple View of Reading is a well-supported framework in typical development that proposes that reading comprehension is predicted by word identification and language comprehension abilities. Although there has been some research examining relations between reading comprehension, word identification, and language comprehension, there has been little research directly testing the Simple View in individuals with Down syndrome, a population that often has difficulties with reading comprehension. Therefore, the purpose of this study was to test the Simple View model in English-speaking readers with Down syndrome and examine the contributions of word identification and language comprehension abilities to their reading comprehension success.

Method:
Twenty-one adolescent and adult readers with Down syndrome (16–36 years of age) completed standardized reading, language, and IQ assessments.

Results:
Multiple regression assessed the contribution of word identification/phonological decoding and language comprehension skills to reading comprehension outcomes. The full model explained 59% of the variance in reading comprehension. However, language comprehension emerged as the only significant unique predictor, explaining 29% of that variance. Together then, word identification and language comprehension explained approximately 30% of the variance in reading comprehension.

Conclusions:
The pattern of results suggests that language comprehension is particularly important to reading comprehension success for individuals with Down syndrome, at least those who can already identify printed words. To support reading comprehension development for individuals with Down syndrome, practitioners, educators, and parents should support language comprehension processes.
Distributed adaptive event‐triggered fault‐tolerant cooperative control of multiple UAVs and UGVs under DoS attacks
Authors: Liu Shangkun , Jiang Bin , Mao Zehui , Zhang Youmin 
Published: April 2023

AbstractHere, the issue of distributed adaptive event‐triggered fault‐tolerant cooperative control (FTCC) is studied for multiple unmanned aerial vehicles (UAVs) and unmanned ground vehicles (UGVs) in the presence of actuator faults under denial‐of‐service attacks. To save the limited communication network resources, the distributed adaptive event‐triggered FTCC scheme is investigated for the multiple UAVs and UGVs which does not require continuous information relating to its neighbours. It is proven that the tracking errors are uniformly ultimately bounded by utilizing the Lyapunov function approach. Furthermore, the Zeno behaviour is excluded with the proposed scheme. Finally, simulation studies are provided to demonstrate the efficiency of the proposed scheme.
Patch‐based nonlocal estimation of scattering mechanism vector in PolInSAR
Authors: Xing Cheng , Wang Hongmiao , Lu Danwei , Yin Junjun , Yang Jian 
Published: April 2023

AbstractNowadays, polarimetric interferometric synthetic aperture radar (PolInSAR) has attracted increasing attention for the simultaneous acquisition of scattering and terrain information. The scattering mechanism vectors corresponding to the optimal coherences have shown great effect in land cover classification and forest mapping. To extract scattering mechanism vectors, different optimization algorithms are proposed but always accompanied with spatial discontinuities. This letter proposes a method to optimize scattering mechanism vectors based on nonlocal estimations. A pixel‐by‐pixel optimization model is established by calculating patch‐based nonlocal similarity, which effectively reduces the uncertainty of scattering mechanism vector estimation while maintaining high resolution. The phase recovery experiment is conducted on simulated data and the root mean square errors (RMSEs) of three algorithms are compared. The proposed method performs better with a RMSE of 0.22 in the whole image, against 0.25 and 1.27 for other algorithms. The recovery results in the target region (RMSE 0.11 against 0.21 and 0.99) and linear edge region (RMSE 0.26 against 0.49 and 1.52) also indicate strong ability in detail preservation. Then the observed ESAR data is utilized for further assessment. It demonstrates that the proposed method has a significant improvement to reduce singularities and distinguish artificial buildings.
Artificial neural network assisted robust droop control of autonomous microgrid
Authors: Kanwal Sidra , Rauf Muhammad Qasim , Khan Bilal , Mokryani Geev 
Published: April 2023

AbstractElectric grid is vulnerable to power imbalance and inertia is the grid's response to overcome such disturbance. Augmentation of power electronic converter based renewable energy technologies like Photovoltaic Generators (PVG) and batteries in utility grid significantly reduces inertia. Inertia degradation is indicated by sharp Rate of Change of Frequency (ROCOF) events due to any grid component failure or imbalance. Fixed gain feedback Proportional Integral Derivative (PID) control is insufficient to deal with varying ROCOF events. This work proposes Sliding Mode (SM) robust droop control scheme assisted by Artificial Neural Network (ANN) algorithm for an islanded PVG integrated microgrid. Droop response is governed by swing equation that uses PVG Maximum Power Point (MPP) forecasted by ANN. ANN forecast is compared with optimized Gaussian process regression algorithm based on mean squared error and speed of training as key performance indicator. The algorithms are trained and validated based on climate dataset of Islamabad, Pakistan. SM control performance is compared with various PID gain settings and qualified as the most suitable against variable source, load and ROCOF scenarios. Finally, significance of accurate MPP forecast for droop control is established by comparing the ANN and deterministic forecaster assisted droop response in a microgrid case study.
Neue Therapieansätze für Speicheldrüsenmalignome
Authors: Nachtsheim Lisa , Prinz Johanna , Arolt Christoph , Quaas Alexander , Meyer Moritz , Klußmann Jens Peter , Wolber Philipp 
Published: April 2023

ZusammenfassungIn den vergangenen Jahren haben sich durch die Verbesserung und Verbreitung molekularpathologischer Testverfahren und die Möglichkeit von zielgerichteten Therapien neue Optionen in der Behandlung von Speicheldrüsenmalignomen ergeben. Durch die neuen zielgerichteten Therapieoptionen werden Patienten deutlich weniger toxische Alternativen zur konventionellen zytostatischen Chemotherapie geboten. Zum einen gibt es neue entitätsspezifische Therapien, wie z.B. die Therapie mit NTRK-Inhibitoren bei sekretorischen Karzinomen und die Therapie mit Axitinib bei adenoidzystischen Karzinomen. Darüber hinaus rücken aber auch entitätsübergreifende Therapeutika, wie z.B. die antiandrogene Therapie, die HER2-Inhibition oder auch die PI3K-Inhibition, in den Vordergrund. Bei metastasierten/rezidivierten Speicheldrüsenkarzinomen, welche nicht mit einer zielgerichteten Therapie behandelt werden können, werden weiterhin hauptsächlich platinbasierte Chemotherapien eingesetzt.
Regioselective Functionalization of Arenes Using Iron Triflimide Catalysis
Authors: Sutherland Andrew , Dodds Amy C. , Waddell Lachlan J. N. 
Published: April 2023

AbstractHere we present our development of the super Lewis acid, iron(III) triflimide as an activating agent of N-halo- and N-thioaryl succinimides for the regioselective functionalization of arenes. We also describe how the iron(III)-catalyzed halogenation reactions were further exploited by combination with copper(I)-catalyzed Ullmann-type coupling reactions for the development of one-pot, multistep processes, including intermolecular aryl C–H amination. This Account also illustrates intramolecular versions of these one-pot processes for the preparation of benzannulated heterocycles, as well as the application of these methods for the synthesis of biologically active compounds and natural products.1	Introduction2	Iron(III)-Catalyzed Halogenation of Arenes3	One-Pot Intermolecular Aryl C–H Amination4	One-Pot Intramolecular C–N, C–O, and C–S Bond-Forming Processes5	Iron(III)-Catalyzed Thioarylation of Arenes6	Synthesis of Phenoxathiins and Phenothiazines Using Lewis Acid and Lewis Base Catalysis7	Conclusions
Secondary Bony Defects after Soft Tissue Reconstruction in Limb-Threatening Lower Extremity Injuries: Does the Approach to Flap Elevation Matter?
Authors: Burke Cynthia E. , Mundy Lily R. , Gupta Jayesh , Wong Alison L. , Enobun Blessing , O'Hara Nathan N. , Bangura Abdulai , O'Connor Katherine C. , Jauregui Julio J. , Miller Nathan F. , O'Toole Robert V. , Pensy Raymond A. 
Published: April 2023

Abstract
Background Limb-threatening lower extremity injuries often require secondary bone grafting after soft tissue reconstruction. We hypothesized that there would be fewer wound complications when performing secondary bone grafting via a remote surgical approach rather than direct flap elevation.
Methods A retrospective cohort study was performed at a single Level 1 trauma center comparing complications after secondary bone grafting in patients who had undergone previous soft tissue reconstruction after open tibia fractures between 2006 and 2020. Comparing bone grafting via a remote surgical incision versus direct flap elevation, we evaluated wound dehiscence requiring return to the operating room as the primary outcome. Secondary outcomes were deep infection and delayed amputation.
Results We identified 129 patients (mean age: 40 years, 82% male) with 159 secondary bone grafting procedures. Secondary bone grafting was performed via a remote surgical approach in 54% (n = 86) and direct flap elevation in 46% (n = 73) of cases. Wound dehiscence requiring return to the operating room occurred in one patient in the flap elevation group (1%) and none of the patients in the remote surgical approach. The odds of deep wound infection (OR, 1.77; p = 0.31) or amputation (OR, 1.43; p = 0.73) did not significantly differ between surgical approaches. No significant differences were found in complications between the reconstructive surgeon elevating and re-insetting the flap and the orthopaedic trauma surgeon performing the flap elevation and re-inset.
Conclusion Direct flap elevation for secondary bone grafting after soft tissue reconstruction for open tibia fractures did not result in more complications than bone grafting via a remote surgical approach. These findings should reassure surgeons to allow other clinical factors to influence the surgical approach for bone grafting.
Factors associated with general practitioner visits for pain in people experiencing chronic pain
Authors: Shebeshi Dinberu , Allingham Samuel , White Janelle , Tardif Hilarie , Holloway David 
Published: April 2023

Introduction Patients with chronic pain (CP) are frequent users of general practitioners (GPs). Aim This study aimed to assess factors associated with the rate of GP visits related to pain in patients with CP. Methods This study used data collected by adult specialist pain management services (SPMS) that participated in the electronic Persistent Pain Outcomes Collaboration (ePPOC) in Australia. Adult patients (18 years or older) with CP (duration greater than 3 months) who were referred to SPMS from the calendar year 2015–2021 were included (N = 84 829). Results Patients who reported severe anxiety, stress, pain, pain interference, pain catastrophising and severely impaired pain self-efficacy were more likely to seek help from a GP. Patients with longer pain duration had a lower rate of GP visits. The rate of GP visits was 1.22 (IRR = 1.22, 95% CI: 1.19, 1.26) times higher in patients with severe pain severity, compared to patients with mild pain severity. Patients who used opioids were more likely to visit a GP (IRR = 1.32, 95% CI: 1.30, 1.34) than those who were not using opioids. Discussions More than half of the adult CP patients had greater than three GP visits in the 3 months before referral. This study would indicate that some patients may attend their GP to seek an opioid prescription. Given the rising use of opioids nationally, future study is required on opioid users’ GP visitation practices. Additionally, the inverse association between pain duration and the rate of GP visits warrants further exploration.
Weighted Radon transforms of vector fields, with applications to magnetoacoustoelectric tomography
Authors: Kunyansky L , McDugald E , Shearer B 
Published: April 2023

Abstract
Currently, theory of ray transforms of vector and tensor fields is well developed, but the Radon transforms of such fields have not been fully analyzed. We thus consider linearly weighted and unweighted longitudinal and transversal Radon transforms of vector fields. As usual, we use the standard Helmholtz decomposition of smooth and fast decreasing vector fields over the whole space. We show that such a decomposition produces potential and solenoidal components decreasing at infinity fast enough to guarantee the existence of the unweighted longitudinal and transversal Radon transforms of these components. It is known that reconstruction of an arbitrary vector field from only longitudinal or only transversal transforms is impossible. However, for the cases when both linearly weighted and unweighted transforms of either one of the types are known, we derive explicit inversion formulas for the full reconstruction of the field. Our interest in the inversion of such transforms stems from a certain inverse problem arising in magnetoacoustoelectric tomography (MAET). The connection between the weighted Radon transforms and MAET is exhibited in the paper. Finally, we demonstrate performance and noise sensitivity of the new inversion formulas in numerical simulations.
Enhanced breakdown voltage and dynamic performance of GaN HEMTs with AlN/GaN superlattice buffer
Authors: Chen Xin , Zhong Yaozong , Yan Shumeng , Guo Xiaolu , Gao Hongwei , Sun Xiujian , Wang Haodong , Li Fangqing , Zhou Yu , Feng Meixin , Yilmaz Ercan , Sun Qian , Yang Hui 
Published: April 2023

Abstract
The characteristics of an AlGaN/GaN high-electron-mobility transistor buffer structure are studied and optimized by employing an AlN/GaN superlattice (SL) structure. Through vertical leakage analysis and back-gate measurement, combined with Silvaco-TCAD simulation, the influence of buffer trapson the carrier transport behaviors and electrical performance for SL buffer structures under a high electric field is analyzed. The AlN/GaN SL buffer structures are further optimized with various AlN/GaN thickness ratios and their total thickness through both simulation and experimental studies. As a result, a high breakdown voltage of up to 1.3 kV with a maximum breakdown electric field of 2.8 MV cm−1 has been achieved. Moreover, the buffer trapping effect is dramatically suppressed, leading to a minimum drop of channel current for the optimized sample, in which donor traps are found to play a positive role in the device dynamic characteristics.
Evidence of charge susceptibility and multiple f–c hybridization configurations with the La doping in CeGe: a DFT + DMFT study
Authors: Singh Karan , Sihi Antik , Pandey Sudhir K , Mukherjee K 
Published: April 2023

Abstract
Kondo coupling has been extensively investigated in several Ce-based systems. However, the search for materials showing the interplay between the Kondo effect, spin–orbit interaction, and crystal-field effect along with the presence of local charge susceptibility; remains a challenge for the condensed matter community. Actually, in Ce-based systems, the strong coupling of the conduction electrons to the local magnetic moments usually hides these properties. Here, we present a detailed investigation of Ce0.6La0.4Ge through a combined density functional theory and dynamic mean-field theory study. Our investigations give evidence of the significant charge susceptibility and the multiple different f–c hybridization configurations. The weakening of the magnetization owing to the dilution of the Ce-site is the main cause for the appearance of such properties, which is believed to occur due to the presence of the relevant local moment and f–c hybridization over the competition with the on-site Coulomb interaction.
Predictive simulations of NBI ion power load to the ICRH antenna in Wendelstein 7-X
Authors: Kontula J , Äkäslompolo S , Ikäheimo A , Lazerson S , Kurki-Suonio T , Hartmann D , Rust N , McNeely P , Kazakov Ye O , Ongena J 
Published: April 2023

Abstract
In Wendelstein 7-X (W7-X), a new ion cyclotron resonance heating (ICRH) antenna will be commissioned during the operational campaign OP2.1. The antenna will have to sustain power loads not only from thermal plasma and radiation but also fast ions. Predictive simulations of fast-ion power loads to the antenna components are therefore important to establish safe operational limits. In this work, the fast-ion power loads from the W7-X neutral beam injection (NBI) system to the ICRH antenna was simulated using the ASCOT suite of codes. Five reference magnetic configurations and five antenna positions were considered to provide an overview of power load behavior under various operating conditions. The NBI power load was found to have an exponential dependence on the antenna insertion depth. Differences between magnetic configurations were significant, with the antenna limiter power load varying between 380 W and 100 kW depending on the configuration. Qualitative differences in power load patterns between configurations were also observed, with the low mirror and low iota configurations exhibiting higher loads to the sensitive antenna straps. The local fast-ion power flux to the antenna limiter was also considered and found to exceed the 2.0 MW m−2 steady-state safety limit only in specific cases. The NBI system might thus pose a safety concern to the ICRH antenna during concurrent NBI-ICRH operation, but additional heat propagation simulations of antenna components are needed to establish more realistic operational time limits.