bluuebunny/crossref_metadata_2025_split huggingface dataset:
Biomarkers associated with rhythm status after cardioversion in patients with atrial fibrillation
Authors: Meyre Pascal B. , Aeschbacher Stefanie , Blum Steffen , Voellmin Gian , Kastner Peter M. , Hennings Elisa , Kaufmann Beat A. , Kühne Michael , Osswald Stefan , Conen David 
Published: January 2022

AbstractBiomarkers may help to improve our knowledge about the complex pathophysiology of atrial fibrillation (AF). In this study we sought to identify significant changes in biomarkers and clinical measures in patients with and without AF recurrence after electrical cardioversion. We measured 21 conventional and new biomarkers before and 30 days after electrical cardioversion and assessed the associations of changes in biomarker levels with rhythm status at follow-up. Significant between-group changes were observed for bone morphogenetic protein 10 (BMP10), N-terminal pro-B-type natriuretic peptide (NT-proBNP) and total bilirubin. Their respective changes were − 10.4%, − 62.0% and − 25.6% in patients with sinus rhythm, and 3.1%, 1.1% and − 9.4% in patients with recurrent AF, for a between-group difference of − 13.5% (95% confidence interval [CI] − 19.3% to − 7.6%; P < 0.001), − 63.1% (95% CI − 76.6% to − 49.6%; P < 0.001) and − 16.3% (95% CI − 27.9% to − 4.7%; P = 0.007). In multivariable models, the reductions of BMP10 and NT-proBNP were significantly associated with follow-up rhythm status (β coefficient per 1 − SD decrease, − 3.85; 95% CI − 6.34 to − 1.35; P = 0.003 for BMP10 and − 5.84; 95% CI − 10.22 to − 1.47; P = 0.009 for NT-proBNP. In conclusion, changes in BMP10 und NT-proBNP levels were independently associated with rhythm status after cardioversion, suggesting that these markers may be dependent on the actual heart rhythm.
Trajectory dimensionality reduction and hyperparameter settings of DBSCAN for trajectory clustering
Authors: Yu Xiaohong , Long Wei , Li Yanyan , Gao Lin , Shi Xiaoqiu 
Published: January 2022

AbstractThe density‐based spatial clustering of application with noise (DBSCAN) algorithm has good robustness and is widely employed to cluster vehicle trajectories for vehicle movement pattern recognition. However, the distance or similarity between two trajectories varies from tens to hundreds of thousands, and there is no effective method for determining the values of the hyperparameters eps and MinPts of DBSCAN. In addition, with increasing sizes of trajectory datasets, some trajectory clustering methods that directly analyse points and line segments incur large computational costs and time overhead. To solve these two dilemmas, the authors propose an effective trajectory dimensionality reduction method and a DBSCAN hyperparameter initial value setting method. The trajectory dimensionality reduction algorithm processes trajectories with different lengths into the same dimensionality (the same number of feature points). The reserved points preserve the spatial and temporal information of these trajectories as much as possible. The DBSCAN hyperparameter initial value setting algorithm obtains the effective initial values of eps and MinPts for facilitating subsequent adjustments. Finally, we validate these proposed methods on two trajectory datasets collected from two real‐world scenes, and the experimental results are promising and effective.
Thermal/fluid characteristics of the inline stacked plain‐weave screen as solar‐powered Stirling engine heat regenerators
Authors: Mortazavi Hamed , Mortazavy Beni Hamidreza , Islam Mohammad Saidul 
Published: January 2022

AbstractThe present work demonstrates the results of a 3D numerical analysis of heat transfer and fluid flow through a fabricated aluminium wire filament, bonded mesh deployed as a regenerator surface in the Stirling engine. Here, two inline regenerator models with the same mass but different geometry were simulated by computational fluid dynamics (CFD) and finite element method (FEM). The results show that the temperature efficiency of both inline with non‐uniform and uniform wire diameters is almost equal. However, the non‐uniform diameter model is shorter and reaches the maximum thermal efficiency faster in reduced length . Also, it shows approximately 5% a greater mean thermal efficiency. In general, from this simulation, it can be seen that changes in the geometry of the heat regenerator can have a direct effect on thermal efficiency and pressure drop in the same mass. Therefore, using the inline stacked plain‐weave screen with a non‐uniform wire diameter regenerator in the powered Stirling engine is recommended due to space constraints. Small changes in the regenerator geometry lead to immense leaps in increasing a solar power plant's overall efficiency.
Research on calibration‐free fingerprinting positioning techniques based on terrestrial magnetism databases for indoor environments
Authors: Yeh Sheng‐Cheng , Lai Chuan‐Jiang , Tsai Fuan , Chiou Yih‐Shyh 
Published: January 2022

AbstractLocation‐based services (LBSs) in such indoor places as museums, airport terminals, and train stations are becoming more and more popular among smartphone users. Hence, the research on indoor positioning technologies is increasing. Indoor positioning technologies using Wi‐Fi or Bluetooth wireless signals have some problems that cannot be overcome, for example, inconsistent data caused by human body shadowing effects. Positioning accuracy and stability still need to be improved to provide higher quality LBS applications. Smartphones have built‐in geomagnetic and acceleration sensors, and the Earth's magnetic field is not affected by human body shadowing effects, so it increases the appeal of using geomagnetism to enable indoor positioning with smartphones. This article proposed approaches in light of calibration‐free fingerprinting positioning techniques with terrestrial magnetism databases for indoor environments. For the differences in measurements yielded by various mobile phone (MP) models and brands, adjustments can be made using the ratio of the total intensity of the magnetic field and its horizontal component to correct the discrepancies. Finally, with the arrangement of four landmarks, the average error distance of the research results in the experimental environment is 3.59 m. The average accuracy of the k‐nearest neighbour (k‐NN) mobile phones is 71.3%.
Les matériaux au cœur des enjeux stratégiques
Authors: Quantin Danièle 
Published: January 2022

Les matériaux sont partout. Ils peuvent se vanter d’un rôle sociétal et économique majeur. Ils évoluent avec le monde qui les entoure. Leur production, développement et utilisation font la signature d’une société. Le monde « post-Covid » sera de plus en plus concurrentiel ; les « matériaux » font et feront partie de cette concurrence accrue.
The Role of Cartilage-perichondrium Tympanoplasty in the Treatment of Tympanic Membrane Retractions: Systematic Review of the Literature
Authors: Immordino Angelo , Sireci Federico , Lorusso Francesco , Martines Francesco , Dispenza Francesco 
Published: January 2022

Abstract
Introduction Tympanic retraction is a condition characterized by the displacement of the tympanic membrane toward the structures of the middle ear. Clinically, tympanic retractions can lead to hearing loss, ear discharge and/or ear pain. In most of the cases, however, tympanic retractions are asymptomatic and are found accidentally during an ear, nose, and throat (ENT) examination. This condition has created numerous debates regarding the optimal choice of treatment, especially in the asymptomatic forms. The main controversy is regarding the relationship between retraction and the development of cholesteatoma, which would justify a surgical intervention performed for preventive purposes.
Objectives To study the effectiveness of cartilage tympanoplasty in the management of tympanic membrane retractions by analyzing the results of the studies conducted on the use of cartilage as a reconstruction material.
Data Synthesis A literature review was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-analyses group (PRISMA). Study selection, data extraction, and quality assessment were conducted independently by two reviewers. Our initial literature search yielded 2,258 references. Applying the PRISMA flow chart, 1,415 duplicates were excluded, and the remaining 843 abstracts were examined. Afterwards, 794 articles were excluded based on the research protocol criteria. Only 8 papers were included in the review by applying the inclusion and exclusion criteria.
Conclusions Despite the limitations of the studies taken into consideration, we can conclude that cartilage tympanoplasty may successfully rehabilitate the atelectatic ear especially in the more advanced stages of retraction, unlike the conservative strategies.
The evolution of football live text commentaries
Authors: Meier-Vieracker Simon 
Published: January 2022

Abstract
Since the emergence of online live text commentaries on football games in the late 1990s, the genre has undergone
continuous change. While linguistic research on the genre of live text commentaries emphasizes its novelty, the genre has existed
in football for at least 20 years. However, diachronic studies still lack. This paper presents a corpus linguistic analysis of
genre and register-specific features of German live text commentaries from 2003 until 2020. Using quantitative methods, it focuses
on the distribution of linguistic features on different linguistic (i.e. syntactical, lexical, graphemic etc.) levels over
time. It is shown that various markers, which signal a colloquial register and emulate orality in the written mode, decrease,
leading to a more impersonal way of reporting. Moreover, markers of individual perspective decrease in favor of a neutralistic
stance. Thus, the evolution of live text commentaries can be described as a process of standardization.
Naming rights sponsorship in Europe
Authors: Gerhardt Cornelia , Clarke Ben , Lecarpentier Justin 
Published: January 2022

AbstractFootball stadiums have traditionally been named after local sites (e.g.Goodison Park, Everton FC) or regions (Ruhrstadion, VfL Bochum). As big business takes increasing precedence in decision making in football at large (e.g. associations and leagues, regarding fixtures, media coverage, kick-off times, player transfers, etc.) and within individual football clubs (e.g. regarding kits and sponsorship), such toponyms are more and more being replaced by company or product names (e.g.bet365 Stadium, Stoke City). In this paper, we will consider corporate renamings from the German Bundesliga, the English Premier League and the French Ligue 1 and particularly fan reactions to controversial, badly received corporate renamings. As revealed by earlier studies, in our data here we also find the discourse and practices of the fans celebrating local identification with their city or region, often with the stadiums constituting the homestead of a tradition. Where corporate stadium renamings are badly received, this discourse clashes with the discourse of big business and thus a number of tensions are revealed. More specifically, in fans’ reactions to controversial corporate stadium renamings, we find a number of recurrent themes – for example, concerning consequences to fans’ identity to the club; in managing (anticipated) humorous retorts from rivals consequent from the stadium renaming; in resisting, but also feeling resigned to, financial pressures in selling the stadium name; etc. – some of them across our three national contexts and others specific to one national context.
Investigating the Z' gauge boson at future lepton colliders *
Authors: Yin Xinyue , Li Honglei , Jin Yi , Han Zhilong , Lu Zongyang 
Published: January 2022

Abstract

boson as a new gauge boson has been proposed in many new physics models. The interactions of

coupling to fermions have been studied in detail at the large hadron collider. A

with the mass of a few TeV has been excluded in some special models. Future lepton colliders will focus on the studies of Higgs physics, which provide the advantage to investigate the interactions of the Higgs boson with the new gauge bosons. We investigate the

interaction via the process of

. The angular distribution of the final leptons decaying from the Z-boson is related to the mixing of

-Z and the mass of

. The forward-backward asymmetry is proposed as an observable to investigate

-Z mixing. The angular distributions change significantly with some special beam polarization compared with the unpolarized condition.
High-quality grand unified theories with three generations *
Authors: Chen Ning 
Published: January 2022

Abstract
We extend the unitary groups beyond the

and

to determine possible grand unified theories that give rise to three-generational Standard Model fermions without simple repetitions. By demanding asymptotic free theories at short distances, we find gauge groups of

,

, and

, together with their anomaly-free irreducible representations, are such candidates. Two additional gauge groups of

and

can also achieve the generational structure without asymptotic freedom. We also deduce that these models can solve the Peccei-Quinn (PQ) quality problem, which is intrinsic in the axion models, with the leading PQ-breaking operators determined from the symmetry requirement.
Electromagnetically coupled processes – An error estimator for electromagnetic computational models
Authors: Garcia Jesus , Alves José , Barlier Julien , Puaux Grégory , Bay François 
Published: January 2022

Abstract
Reliable modelling of electromagnetic processing technologies largely depends on the accuracy of electromagnetic computations. This work will thus focus on the development of error estimators for evaluating the accuracy of finite element electromagnetic computations dedicated to improving induction heating process modelling accuracy. Application to induction heating and magnetic stirring cases will prove the efficiency of the approach. Error estimation results will be used later on for carrying out anisotropic adaptive remeshing.
Design of induction tempering of surface hardened components
Authors: Baldan Marco , Nacke Bernard 
Published: January 2022

Abstract
Induction hardening is a well-known heat treatment in the automotive and aerospace industries. Very often it is accompanied by tempering that is conventionally performed in ovens. However, induction tempering is getting more popular and this introduces the chance of using numerical simulations and optimization in the design stage. In this paper, based on a real case study, we will describe how to model and choose the regime parameters in both induction hardening and tempering.
Numerical investigation of double sided plasma vortex generator in separation control
Authors: Mukut A N M M I , Afroz H M M 
Published: January 2022

Abstract
Control of flow separation is a great issue to deal with a moving body to ensure its proper aerodynamic characteristics. To achieve this, various methods including active and passive control are suggested depends upon the flow characteristics and the surface in which control is necessary. To make the better use of both active and passive method of flow control this article proposed a new type of double sided plasma actuator (DSPVG) to overcome the drag penalty of conventional vortex generators (VGs) that commonly used in controlling flow and to use actively control. In this regard, the effectiveness of DSPVG has been numerically and experimentally investigated in a separated flow region of a 20° diffuser of an open type tunnel. DSPVG is placed at the upstream of separation location normal to the surface as like as conventional VG except zero angle with flow direction. Both numerical and experimental results of DSPVG are compared with that of VG and baseline flow and better agreements are found. Moreover, DSPVG has shown better separation suppression ability than conventional VGs due to its dual vortices. It is found that DSPVG significantly delay the separation. A freestream flow of 4 m s−1 is used for experiments and numerical computations.
Facilitated case conferences on end-of-life care for persons with advanced dementia—a qualitative study of interactions between long-term care clinicians and family members
Authors: Francisco Mari Claire , Lane Heather , Luckett Tim , Disalvo Domenica , Pond Dimity , Mitchell Geoffrey , Chenoweth Lynette , Phillips Jane , Beattie Elizabeth , Luscombe Georgina , Goodall Stephen , Agar Meera 
Published: January 2022

Abstract

Background
Prognostic uncertainty and the need for proxy decision-making owing to cognitive impairment in advanced dementia, adds complexity to end-of-life care planning within the long-term care setting. Case conferences provide a structure to facilitate difficult conversations and an opportunity for family and clinicians to engage in prospective planning, and reach agreement on goals of end-of-life care.

Objective
To explore interactions between multidisciplinary healthcare clinicians and families during facilitated case conferences on end-of-life care for residents with advanced dementia.

Methods
A qualitative approach was used. Transcripts of audio-recorded case conferences facilitated by a trained registered nurse were coded by two independent researchers and analysed inductively. Transcripts were selected from an available pool until thematic saturation was reached. Emerging themes were confirmed with the wider research group.

Results
Thematic saturation was reached after 25 transcripts. An overarching theme concerned the ways in which clinicians and families bridged medical and person-centred perspectives. Subthemes included: details of day-to-day care versus establishing overall goals of care; expression of emotion versus retreat from emotion; and missed opportunities versus expressed cues. Successful facilitation served to ‘bridge the gap’ between family and clinicians.

Conclusion
Facilitation of case conferences for residents with advanced dementia should focus on ensuring that: clinicians do not miss opportunities to discuss end-of-life care; discussions on the minutiae of care regularly return to the resident’s broader goals of care; and information on dementia and treatments provided by clinicians is integrated with advice by family members regarding the resident’s premorbid values and likely preferences.
The phylogeny of Salix revealed by whole genome re-sequencing suggests different sex-determination systems in major groups of the genus
Authors: Gulyaev Sergey , Cai Xin-Jie , Guo Fei-Yi , Kikuchi Satoshi , Applequist Wendy L , Zhang Zhi-Xiang , Hörandl Elvira , He Li 
Published: January 2022

Abstract

Background and Aims
The largest genus of Salicaceae sensu lato, Salix, has been shown to consist of two main clades: clade Salix, in which species have XY sex-determination systems (SDSs) on chromosome 7, and clade Vetrix including species with ZW SDSs on chromosome 15. Here, we test the utility of whole genome re-sequencing (WGR) for phylogenomic reconstructions of willows to infer changes between different SDSs.

Methods
We used more than 1 TB of WGR data from 70 Salix taxa to ascertain single nucleotide polymorphisms on the autosomes, the sex-linked regions (SLRs) and the chloroplast genomes, for phylogenetic and species tree analyses. To avoid bias, we chose reference genomes from both groups, Salix dunnii from clade Salix and S. purpurea from clade Vetrix.

Key Results
Two main largely congruent groups were recovered: the paraphyletic Salix grade and the Vetrix clade. The autosome dataset trees resolved four subclades (C1–C4) in Vetrix. C1 and C2 comprise species from the Hengduan Mountains and adjacent areas and from Eurasia, respectively. Section Longifoliae (C3) grouped within the Vetrix clade but fell into the Salix clade in trees based on the chloroplast dataset analysis. Salix triandra from Eurasia (C4) was revealed as sister to the remaining species of clade Vetrix. In Salix, the polyploid group C5 is paraphyletic to clade Vetrix and subclade C6 is consistent with Argus’s subgenus Protitea. Chloroplast datasets separated both Vetrix and Salix as monophyletic, and yielded C5 embedded within Salix. Using only diploid species, both the SLR and autosomal datasets yielded trees with Vetrix and Salix as well-supported clades.

Conclusion
WGR data are useful for phylogenomic analyses of willows. The different SDSs may contribute to the isolation of the two major groups, but the reproductive barrier between them needs to be studied.
Phylogeography of ancient and modern brown bears from eastern Eurasia
Authors: Molodtseva Anna S , Makunin Alexey I , Salomashkina Valentina V , Kichigin Ilya G , Vorobieva Nadezhda V , Vasiliev Sergey K , Shunkov Mikhail V , Tishkin Alexey A , Grushin Sergey P , Anijalg Peeter , Tammeleht Egle , Keis Marju , Boeskorov Gennady G , Mamaev Nikolai , Okhlopkov Innokenty M , Kryukov Alexey P , Lyapunova Elena A , Kholodova Marina V , Seryodkin Ivan V , Saarma Urmas , Trifonov Vladimir A , Graphodatsky Alexander S 
Published: January 2022

AbstractThe brown bear (Ursus arctos) is an iconic carnivoran species of the Northern Hemisphere. Its population history has been studied extensively using mitochondrial markers, which demonstrated signatures of multiple waves of migration, arguably connected with glaciation periods. Among Eurasian brown bears, Siberian populations remain understudied. We have sequenced complete mitochondrial genomes of four ancient (~4.5–40 kya) bears from South Siberia and 19 modern bears from South Siberia and the Russian Far East. Reconstruction of phylogenetic relationships between haplotypes and evaluation of modern population structure have demonstrated that all the studied samples belong to the most widespread Eurasian clade 3. One of the ancient haplotypes takes a basal position relative to the whole of clade 3; the second is basal to the haplogroup 3a (the most common subclade), and two others belong to clades 3a1 and 3b. Modern Siberian bears retain at least some of this diversity; apart from the most common haplogroup 3a, we demonstrate the presence of clade 3b, which was previously found mainly in mainland Eurasia and Northern Japan. Our findings highlight the importance of South Siberia as a refugium for northern Eurasian brown bears and further corroborate the hypothesis of several waves of migration in the Pleistocene.
Preferences, Confusion and Competition
Authors: Hefti Andreas , Liu Shuo , Schmutzler Armin 
Published: January 2022

Abstract
Existing literature has argued that firms benefit from confusing consumers of homogeneous goods. This paper shows that this insight generally breaks down with differentiated goods and heterogeneous preferences: with polarised taste distributions, firms fully educate consumers. In cases where firms nevertheless confuse consumers, the welfare consequences are worse than for homogeneous goods, as consumers choose dominated options. Similar insights are also obtained for political contests, in which candidates compete for voters with heterogeneous preferences: parties choose ambiguous platforms only when preferences are ‘indecisive’, featuring a concentration of indifferent voters.