bluuebunny/crossref_metadata_2025_split huggingface dataset:
Exploratory study of the global intent to accept COVID-19 vaccinations
Authors: de Figueiredo Alexandre , Larson Heidi J. 
Published: September 2021

Abstract
Background
As the world begins the rollout of multiple COVID-19 vaccines, pandemic exit strategies hinge on widespread acceptance of these vaccines. In this study, we perform a large-scale global exploratory study to examine the levels of COVID-19 vaccine acceptance and explore sociodemographic determinants of acceptance.

Methods
Between October 31, 2020 and December 15, 2020, 26,759 individuals were surveyed across 32 countries via nationally representative survey designs. Bayesian methods are used to estimate COVID-19 vaccination acceptance and explore the sociodemographic determinants of uptake, as well as the link between self-reported health and faith in the government’s handling of the pandemic and acceptance.

Results
Here we show that intent to accept a COVID-19 vaccine is low in Lebanon, France, Croatia, and Serbia and there is population-level polarisation in acceptance in Poland and Pakistan. Averaged across all countries, being male, over 65, having a high level of education, and believing that the government is handling the pandemic well are associated with increased stated acceptance, but there are country-specific deviations. A belief that the government is handling the pandemic well in Brazil and the United States is associated with lower vaccination intent. In the United Kingdom, we find that approval of the first COVID-19 vaccine in December 2020 did not appear to have an impact on the UK’s vaccine acceptance, though as rollout has continued into 2021, the UK’s uptake exceeds stated intent in large-scale surveys conducted before rollout.

Conclusions
Identifying factors that may modulate uptake of novel COVID-19 vaccines can inform effective immunisation programmes and policies. Differential stated intent to accept vaccines between socio-demographic groups may yield insights into the specific causes of low confidence and may suggest and inform targeted communication policies to boost confidence.
Structural, optical and dielectric properties of Sr2Ni1−xMgxWO6(x= 0.00, 0.02, 0.04, and 0.06) double perovskite
Authors: Mohamed Saadon Nur Amira Farhana , Ali Nurliyana Mohd , Ibrahim Norazila , Mohamed Zakiah 
Published: September 2021

Sr2Ni1−xMgxWO6 (0.00 ≤ x ≤ 0.06) polycrystalline samples were prepared using a solid state method and the structural, optical and dielectric properties of the samples were studied using XRD, UV-vis, FTIR and EIS respectively.
Cinnamic acid inhibits cell viability, invasion, and glycolysis in primary endometrial stromal cells by suppressing NF-κB-induced transcription of PKM2
Authors: Yao Qiuwen , Jing Guiying , Zhang Xiaowen , Li Meiling , Yao Qihuan , Wang Longhui 
Published: September 2021

Background: Endometriosis is a painful disorder characterized by the growth of endometrial tissue outside the uterine cavity. Here, we investigated the effects of the cinnamic acid isolated from the Chinese medicinal plant Cinnamomum cassia Presl on primary endometrial stromal cells. Methods: Immunohistochemistry was used to examine protein expression and cell purity. Quantitative RT-PCR was conducted to assess mRNA expression, and Western blot was performed to determine protein level. Cell viability was assessed using cell counting kit-8 (CCK-8) assay. Glycolysis and mitochondrial function were evaluated by measuring the extracellular acidification rate (ECAR) and the oxygen consumption rate (OCR) of cells, respectively. Lastly, plasmid transfection and inhibitor treatment were used for overexpression and inhibition studies. Results: Cinnamic acid inhibited cell viability and cell invasion, as well as decreased ECAR and OCR, in primary endometrial stromal cells. Cinnamic acid suppressed the effects of PKM2 overexpression, and inhibition of PKM2 using Compound 3k mimicked the effects of cinnamic acid. Treatment with Compound 3k and cinnamic acid did not lead to additive effects, but rather displayed effects similar to those of Compound 3k alone, suggesting that cinnamic acid elicits its effects on primary endometrial stromal cells by targeting PKM2. Conclusions: Our study identified cinnamic acid as a novel compound from Cinnamomum cassia Presl that displays potent effects on primary endometrial stromal cell viability, invasion, and glycolysis, suggesting its potential use for endometriosis treatment.
Optimization of a GIS sensor layout based on global detection probability distribution evaluation
Authors: Li Peijiang , You Ting 
Published: September 2021

AbstractGas‐insulated switchgear (GIS) is an important power equipment. The implementation of health monitoring is limited by the number of sensors, and the global detection results of the system should be highly credible to ensure the reliability of the power supply system. To solve this problem, this study proposes a sensor layout optimization method based on global detection probability performance evaluation. Starting from the cost function, the GIS discharge detection problem is transformed into a Bayesian risk decision problem, the binary state of ‘with discharge’ and ‘without discharge’ is adopted to simplify the cost function and reduce the computing workload, and the objective function representing the global detection performance of the system is obtained. The solution of layout optimization is realized by the improved genetic algorithm. 3‐sensor, 4‐sensor and 6‐sensor layouts, which are digitally simulated at different detection rates, and then the distribution diagram of the global detection rate is obtained. On this basis, the feasibility and effectiveness of the optimization method are verified through an experiment. The results show that, compared with other sensor layout optimization methods, this optimization method can obtain the correct probability distribution of the detection rate globally and realize the graphical quantization of the detection performance distribution of the system so as to ensure the system performance.
A new model path for the development of smart leisure sports tourism industry based on 5G technology
Authors: Liang Feng , Mu Lili , Wang Dongle , Kim Byung‐Sik 
Published: September 2021

AbstractIn recent years, national and local governments have attached great importance to the development of tourism big data, and have proposed an active development of the ‘Internet + Tourism’ strategy to cultivate new forms of tourism in various forms. With the development of 5G technology, the tourism industry also needs to study new development paths. The traditional tourism industry cannot obtain relevant information of tourists on time, nor can it provide satisfactory services, which has brought troubles to the traditional tourism industry. However, with the support of 5G technology, smart tourism is increasingly meeting the needs of the public and improving the level of tourism services. Based on this, this paper proposes a new model path research for the development of the smart leisure sports tourism industry based on 5G technology. This paper adopts the literature method to learn the theoretical basis of 5G technology and smart tourism in depth; through 5G technology, establishes a multi‐dimensional resource allocation model for the smart leisure sports tourism industry, and conducts research on the influencing factors, information sources, channel factors and other aspects of the tourism industry. The general public's search for tourism strategies and attractions, food and specialty products, the use of online search information channels accounted for 70.3% and 69.3%, which further shows that the development of 5G technology has promoted the transformation and development of the sports tourism industry.
Hybrid attention mechanism for few‐shot relational learning of knowledge graphs
Authors: Ma Ruixin , Li Zeyang , Guo Fangqing , Zhao Liang 
Published: September 2021

AbstractFew‐shot knowledge graph (KG) reasoning is the main focus in the field of knowledge graph reasoning. In order to expand the application fields of the knowledge graph, a large number of studies are based on a large number of training samples. However, we have learnt that there are actually many missing relationships or entities in the knowledge graph, and in most cases, there are not many training instances when implementing new relationships. To tackle it, in this study, the authors aim to predict a new entity given few reference instances, even only one training instance. A few‐shot learning framework based on a hybrid attention mechanism is proposed. The framework employs traditional embedding models to extract knowledge, and uses an attenuated attention network and a self‐attention mechanism to obtain the hidden attributes of entities. Thus, it can learn a matching metric by considering both the learnt embeddings and one‐hop graph structures. The experimental results present that the model has achieved significant performance improvements on the NELL‐One and Wiki‐One datasets.
Biomechanical comparison of backhand topspin against backspin between different level table tennis athletes using QUALSYS infrared acquisition
Authors: Guo Hailian 
Published: September 2021

AbstractThe technique of backhand topspin against backspin is important for table tennis players to gain more advantages in the confrontation. In this paper, a biomechanical analysis of backhand topspin against backspin was conducted with varsity and non‐varsity male table tennis players from Zhejiang Changzheng Vocational and Technical College. The QUALISYS infrared acquisition system collected the changes in the athletes’ limb movements, and the force platform collected the changes in the athletes’ limb moments in the ball striking process. The results showed that professionally trained athletes were able to achieve greater joint angles and provide greater torques to the shoulder, elbow and wrist joints at the moment of batting. The main purpose of this paper is to provide data reference for the improvement of backhand stroke technique by studying the pattern of limb movements of players when they perform backhand stroke. In summary, in order to improve the backhand technique of hitting backspin, athletes need to focus on training the shoulder, elbow and wrist joints to achieve greater variations of angles and greater torques. The novelty of this paper is collecting the body movements of backhand strokes in a more concise and fast way with the QUALISYS infrared acquisition system.
Brown dwarfs as ideal candidates for detecting UV aurora outside the Solar System: Hubble Space Telescope observations of 2MASS J1237+6526
Authors: Saur Joachim , Willmes Clarissa , Fischer Christian , Wennmacher Alexandre , Roth Lorenz , Youngblood Allison , Strobel Darrell F. , Reiners Ansgar 
Published: September 2021

Context. Observations of auroral emissions are powerful means to remotely sense the space plasma environment around planetary bodies and ultracool dwarfs. Therefore successful searches and characterization of aurorae outside the Solar System will open new avenues in the area of extrasolar space physics.
Aims. We aim to demonstrate that brown dwarfs are ideal objects to search for UV aurora outside the Solar System. We specifically search for UV aurora on the late-type T6.5 brown dwarf 2MASS J12373919+6526148 (in the following 2MASS J1237+6526).
Methods. Introducing a parameter referred to as auroral power potential, we derive scaling models for auroral powers for rotationally driven aurora applicable to a broad range of wavelengths. We also analyze Hubble Space Telescope observations obtained with the STIS camera at near-UV, far-UV, and Ly-α wavelengths of 2MASS J1237+6526.
Results. We show that brown dwarfs, due to their typically strong surface magnetic fields and fast rotation, can produce auroral UV powers on the order of 1019 watt or more. Considering their negligible thermal UV emission, their potentially powerful auroral emissions make brown dwarfs ideal candidates for detecting extrasolar aurorae. We find possible emission from 2MASS J1237+6526, but cannot conclusively attribute it to the brown dwarf due to low signal-to-noise values in combination with nonsystematic trends in the background fluxes. The observations provide upper limits for the emission at various UV wavelength bands. The upper limits for the emission correspond to a UV luminosity of ~1 × 1019 watt, which lies in the range of the theoretically expected values.
Conclusions. The possible auroral emission from the dwarf could be produced by a close-in companion and/or magnetospheric transport processes.
Dual-Mobility Cups in Primary Total Hip Arthroplasty
Authors: Bellova Petri , Goronzy Jens , Riedel Roman , Grothe Tim , Hartmann Albrecht , Günther Klaus-Peter 
Published: September 2021

AbstractDual-mobility cups (DMCs) were introduced in France more than 40 years ago and are increasingly used not only in hip revision but also primary hip arthroplasty. Due to a simulated
large-head articulation and increased jumping distance, DMCs can contribute to a high range of motion in the hip joint and reduce the risk of instability. Numerous studies have reported low
dislocation rates and high survival rates in the mid-term follow-up. Nevertheless, long-term data, especially on primary hip replacement, remain limited, and the effect of recent designs and
material innovations is still unclear. Therefore, primary DMCs are mainly proposed in patients at high risk for dislocation (i.e. pelvitrochanteric insufficiency, compromised spinopelvic
mobility, neuromuscular disorders, obesity and femoral neck fractures). Based on a review of recently published studies referring to these indications, the current study discusses the
advantages and disadvantages of DMCs.
Auswirkungen des Migränezyklus auf tägliche stattfindende manuelle Untersuchungen der Halswirbelsäule bei einer Migränikerin: eine Einzelfallstudie
Authors: Lüdtke Kerstin , Szikszay Tibor , Jülke Markus 
Published: September 2021

ZusammenfassungIn einer Studie, in der eine Migränepatientin täglich mit funktioneller Magnetresonanztomografie (fMRT) untersucht wurde, zeigte sich, dass Areale im Gehirn (unter anderem Hirnstamm und Hypothalamus) vor, während und nach einer Migräneattacke anders reagieren. In Anlehnung an diese Erkenntnisse untersucht diese Einzelfallstudie die Abhängigkeit des Migränezyklus auf die funktionellen muskuloskelettalen Veränderungen der Halswirbelsäule.Eine Probandin mit Migräne wurde 38 Tage lang jeden Abend für ca. 10 Minuten nach einer standardisierten Vorgehensweise untersucht. Ihre Wirbelsäule wurde hochzervikal auf Beweglichkeit geprüft und lokaler sowie ausstrahlender Schmerz notiert. Zusätzlich wurden Druckschmerzschwellen mittels Algometer an vorab festgelegten Punkten bestimmt.Die Untersuchungen der Beweglichkeit zeigten ein unterschiedliches Verhalten in den einzelnen Phasen des Migränezyklus. 28 % der Messungen, die in der interiktalen (= kopfschmerzfreien) Phase durchgeführt wurden, wurden als hypomobil bewertet. Im Vergleich dazu waren es pre-iktal (= 48 Std vor der Attacke) 6 % und iktal (= während der Attacke) 10 % mehr hypomobile Messungen als interiktal. In der post-iktalen Phase (= 24 Stunden nach dem Ende der Kopfschmerzen) kam es nur bei 18 % der Messungen zu einer auftretenden Einschränkung der Beweglichkeit. Die Reproduktion von Schmerzen verhielt sich in einem vergleichbaren Muster wie die Beweglichkeit, wohingegen die Druckschmerzschwellen zur Einschätzung einer allgemein erhöhten Sensitivität dieses Muster nicht zeigten.Aufgrund der niedrigen Anzahl an sicher bestätigten Migräneattacken (1/7 Kopfschmerztage), lässt sich kein eindeutiges Fazit ziehen. Jedoch scheinen sich Beweglichkeit, Reproduktion von Schmerz bei manueller Palpation und Druckschmerzschwelle während des Migräne-/Kopfschmerzzyklus unterschiedlich zu verhalten.
Endoscopic submucosal dissection combined with clip for closure of gastrointestinal fistulas including those refractory to previous therapy
Authors: Lafeuille Pierre , Wallenhorst Timothée , Lupu Alexandru , Jacques Jérémie , Lambin Thomas , Camus Marine , Yzet Clara , Ponchon Thierry , Rostain Florian , Rivory Jérôme , Subtil Fabien , Pioche Mathieu 
Published: September 2021

Background Gastrointestinal (GI) fistula is a life-threatening condition and a therapeutic challenge. Endoscopic approaches include mucosal abrasion, clip closure, or stent diversion, with moderate success rates in the long term. We assessed whether fistula endoscopic submucosal dissection with clip closure (FESDC) could lead to complete resolution of fistulas even after failure of previous endoscopic therapy.
Methods Patients with GI fistulas, including those with previous failed treatment, were retrospectively included. The primary outcome was long-term (> 3 months) success of fistula healing. Secondary outcomes included technical success, safety, and factors associated with FESDC success.
Results 23 patients (13 refractory 57 %) were included. Tight immediate sealing was achieved in 19 patients (83 %; 95 % confidence interval [CI] 61 %–95 %). Long-term closure was achieved in 14 patients (61 %; 95 %CI 39 %–80 %), with median follow-up of 20 months. Complications occurred in two patients (9 %). Previous local malignancy (P = 0.08) and radiotherapy (P = 0.047) were associated with a higher risk of failure.
Conclusion This novel FESDC strategy was demonstrated to be safe and feasible for permanent endoscopic closure of GI fistulas. Further studies are warranted to determine the place of this technique in the management of chronic GI fistula.
Periodontal Diseases and COVID-19: A Scoping Review
Authors: Basso Lisa , Chacun Doriane , Sy Kadiatou , Grosgogeat Brigitte , Gritsch Kerstin 
Published: September 2021

AbstractThe aim of this scoping review was to present the existing literature regarding the relationship between periodontal diseases and coronavirus disease 2019 (COVID-19). The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) extension for scoping review guidelines was followed. Articles were retrieved from PubMed/MEDLINE and Scopus databases and screened to include studies relating severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) or COVID-19 to periodontal cells and/or tissues and/or diseases. Twenty-five papers were included; consisting of six reviews, seven original articles, six short reports, four letters to the editor, one commentary, and one case report. The articles were allocated to three different topics: (i) hypotheses on the relationship between periodontal diseases and COVID-19; (ii) risk factors and comorbidities common to periodontitis and COVID-19; (iii) periodontal manifestations of COVID-19. Certain molecules (angiotensin-converting enzyme-2, furin, cathepsin, TMPRSS2...) that are found at a high level in periodontal tissues, particularly in patients with periodontitis, are involved in the mechanism of entry of SARS-CoV-2 into cells. Periodontopathic bacteria could also play a direct role in the mechanism of entry of SARS-CoV-2 by cleaving the S-protein, and the cytokines produced during periodontitis could add to the cytokine storm found in the severe forms of COVID-19. It thus appears that the treatment of periodontitis, which allows a reduction in periodontopathic bacteria and of the local and systemic inflammation state, could be part of a strategy to prevent the development of severe forms of COVID-19.
Contraception in Adolescents
Authors: Raidoo Shandhini , Pearlman Shapiro Marit , Kaneshiro Bliss 
Published: September 2021

AbstractAdolescents are at risk for unwanted pregnancy when they become sexually active, and contraception is an important part of mitigating this risk. Use of contraceptive methods, and long-acting reversible contraceptive methods such as implants and intrauterine devices in particular, has increased among adolescents. Although sexual activity has declined and contraceptive use has increased among adolescents in the United States in recent years, the unintended pregnancy rate remains high. All of the currently available contraceptive methods are safe and effective for adolescents to use; however, adolescents may have specific concerns about side effect profiles and unscheduled bleeding that should be addressed during contraceptive counseling. Healthcare providers should prioritize adolescents' needs and preferences when approaching contraceptive counseling, and also consider the unique access and confidentiality issues that adolescents face when accessing contraception.
Kills in the Darling: assessing the impact of the 2018–20 mass fish kills on the fish communities of the Lower Darling–
Authors: Stocks Jerom R. , Ellis Iain M. , van der Meulen Dylan E. , Doyle Jonathon I. , Cheshire Katherine J. M. 
Published: September 2021

Understanding the impacts of extreme events is essential to effective fisheries management. During the summer of 2018–19 millions of native fish died in Lower Darling–Baaka River adjacent to Menindee, New South Wales, Australia. Hypoxia during a period of protracted low flow, triggered by climatic events, was responsible for the fish kills. From June 2019 to March 2020, further broader-scale fish kills occurred throughout ~600 km of the Darling–Baaka River as disconnected refuge pools contracted and water quality deteriorated. This study examined the status of the remnant fish populations, compared the fish assemblage of the Menindee fish death reach with an unaffected reach and monitored change of the fish community over 18 months after the initial fish kills. Significantly lower abundances of Murray cod (Maccullochella peelii), bony herring (Nematalosa erebi), carp gudgeon (Hypseleotris spp.) and freshwater prawn (Macrobrachium australiense) were captured within the Menindee fish death reach compared with the unaffected reach. Varied responses were observed in species abundances within the affected reach in the 18 months after the initial fish kills, attributed to the various life-history traits and reproductive strategies. The results presented highlight a fish community in continued stress. Continued monitoring will guide and track the effectiveness of recovery management interventions in the region.
The Next Steps in Academic Integrity — Education, Awareness, Norms, Duty and Law
Authors: Zhang Yuehong (Helen) , Lin Hanfeng , Zhang Xinxin , Ye Qing 
Published: September 2021

ABSTRACT
We conducted and analyzed several internet surveys in order to understand the profile of global research integrity and ethical awareness, encompassing global population distribution. These were (1) the global distribution of Committee of Publishing Ethics (COPE) membership; (2) the global distribution of “Integrity” or “Ethics” journals; (3) the level of academic integrity awareness in European higher education institutions and (4) awareness of academic integrity in the top universities of Asia and Africa. The results of this survey series highlight seriously imbalanced awareness of research integrity and publishing ethics across the world, especially in developing areas with the highest population density. We therefore propose a new index, the “Academic Integrity Awareness Index” for future discussions across the linked spheres of publishing and research.