bluuebunny/crossref_metadata_2025_split huggingface dataset:
Elite darts performance and the social influence of real crowds and simulated crowd noise
Authors: Greve Jona , van Meurs Edda , Strauss Bernd 
Published: July 2023

AbstractWhile the effect of missing audiences has been studied numerously in team sports with diverse effects, studies on individual performances are rare. The current investigation analyzes performances of professional dart players in (a) the absence of spectators, (b) the presence of real crowds, and (c) artificial crowd noise (simulated crowds) substituting live spectators during the COVID-19 pandemic. Empirical evidence suggests that performances in coordination-based accuracy tasks are negatively impacted by the presence of others. Therefore, we hypothesize that performance of elite darts players deteriorates in the presence of a real audience (RA) in comparison to no audience (NA) and simulated audience (SA). https://dartsorakel.com provided the data of professional tournaments played from 2018 to 2021, which included N = 26,724 individual performances from k = 442 players (98.8% male). How RA and SA impacted checkout percentage (CP) and three-dart average (3DA) was analyzed using separate multilevel models, adding various control variables. Competing with audiences (SA and RA) resulted in decreased CP with an effect of βstand_real = − .20, p < .001, and βstand_sim = − .14, p < .001. 3DA increased with SA, βstand_sim = .08, p < .001, and decreased with RA, βstand_sim = − .07, p < .001. The results show that real crowds appear to have a negative impact on darts performance, yet effect sizes are small.
Understanding H-aggregates crystallization induced emissive behavior: insights from theory
Authors: Li Huixue , Lv Lingling , Yuan Kun , Pan Sujuan , Li Zhifeng 
Published: July 2023

AbstractWe conducted a theoretical investigation into how the molecular stacking effect impacts the photophysical properties in solid phases. Our findings indicated that in the aggregated state, the out-of-plane distorted vibration and imidazole ring stretching vibration of triimidazo-[1,3,5] triazinethe are significantly suppressed, which decreased the Huang-Rhys factor and the corresponding reorganization energy of the photophysical process, as a result, this restricted intramolecular motions and dissipation pathways of excess energy in the excited state, therefore, aggregation induced enhancement emission (AIEE) was found for the title compound from dichloromethane solution to solid state. Analysis of the emission spectrum through discrete spectral lines revealed that the main peak was affected by the vibrational modes with lower frequencies, while the middle-frequency modes influenced the shoulder peak. Furthermore, the predicted intersystem crossing rate (kiosk) and reverse intersystem crossing rate (krisc) using Marcus theory confirmed that an electron can successfully shift from its S1 state to the T1 state, however, the reverse T1 → S1 process can not come into being due to very small krisc (10–6–10–9 s–1), therefore the phosphorescence can be observed. At last, we explored the influence of charge transfer process of the title compound, our theoretical data declared this process can be ignored due to its low transfer rate.
Analysis of the effects of stent-induced deformation on the hemodynamics of MCA aneurysms
Authors: Huang Conggang , Zhou Xueqin , Duan Faliang , Li Ruixue , Luo Ming , Luo Zhihua , Mousavi SValiallah 
Published: July 2023

AbstractThe use of a stent to coil an aneurysm can alter the position of the main blood vessel and affect blood flow within the sac. This study thoroughly examines the impact of stent-induced changes on the risk of MCA aneurysm rupture. The research aims to assess the effects of coiling and vessel deformation on blood flow dynamics by comparing the OSI, WSS, and blood structure of two distinct MCA aneurysms to identify high-risk areas for hemorrhage. Computational fluid dynamics is used to model blood flow. The results indicate that aneurysm deformation does not always decrease the risk of rupture, and coiling is more effective in occluding blood flow than aneurysm deformation.
A space vector pulse width modulation method for switched reluctance motor driven by full bridge power converter
Authors: Sun Haitao , Dou Yinke , Chen Yan 
Published: July 2023

AbstractThis study proposes a space vector pulse width modulation (SVPWM) driving method for the switched reluctance motor (SRM), which enables the use of a standard full‐bridge power converter to drive a three‐phase SRM with a ring structure, in place of the traditional asymmetric H‐bridge (AHB). Based on this driving topology, the SVPWM approach is employed to drive the SRM, and its performance is compared with that of the conventional SRM driving method utilising the AHB. The findings indicate that the SVPWM method can effectively reduce torque ripple in the SRM. Moreover, the experimental validation performed to verify the proposed driving topology and method yields results that closely align with the simulated outcomes.
Study on water absorption and dielectric response of epoxy resin impregnated paper bushing
Authors: Zhang Daning , Feng Xinyuan , Yang Zhi , Xu Haisong , Jiang Jiongting , Mu Haibao , Zhang Guan‐Jun 
Published: July 2023

AbstractEpoxy‐impregnated paper transformer bushings are prone to water absorption due to the presence of water‐attracting moieties in the cellulose chemical structure and epoxy resin, leading to moisture‐induced insulation defects. To understand the mechanism of moisture's impact on epoxy‐impregnated paper, this study developed a testing platform that integrated moisture diffusion, adsorption, and dielectric properties of insulating materials. Insulation specimens made of epoxy resin and epoxy‐impregnated paper were prepared and their water diffusion characteristics were investigated using the Fick diffusion model and the Langmuir model, respectively. The Guggenheim–Anderson–de Boer equation was used to examine the vacuum vapour adsorption characteristics of the materials, providing a theoretical foundation for examining the form of water present within them. The dielectric response of materials with varying moisture levels was then tested to study the effect of water on the dielectric spectrum curve. Using the Extended Derivative Method, the characteristic frequency reflecting the water content of the epoxy‐impregnated paper was extracted. The results demonstrate that 0.01‐Hz characteristic frequency provides superior accuracy for moisture assessment in epoxy resins compared to 50 Hz, and extracting and fitting the relaxation peak characteristic frequency in epoxy‐impregnated paper moisture evaluation yields higher accuracy than using tan δ at the power frequency.
TAU: A neural network based telluric correction framework
Authors: Kjærsgaard R. D. , Bello-Arufe A. , Rathcke A. D. , Buchhave L. A. , Clemmensen L. K. H. 
Published: July 2023

Context.Telluric correction is one of the critically important outstanding issues for extreme precision radial velocities and exoplanet atmosphere observations. Thorough removal of small so-called micro tellurics across the entire wavelength range of optical spectro-graphs is necessary in order to reach the extreme radial velocity precision required to detect Earth-analog exoplanets orbiting in the habitable zone of solar-type stars. Likewise, proper treatment of telluric absorption will be important for exoplanetary atmosphere observations with high-resolution spectrographs on future extremely large telescopes (ELTs).Aims.In this work, we introduce the Telluric AUtoencoder (TAU).TAUis an accurate high-speed telluric correction framework built to extract the telluric spectrum with previously unobtained precision in a computationally efficient manner.Methods.TAUis built on a neural network autoencoder trained to extract a highly detailed telluric transmission spectrum from a large set of high-precision observed solar spectra. We accomplished this by reducing the data into a compressed representation, allowing us to unveil the underlying solar spectrum and simultaneously uncover the different modes of variation in the observed spectra relating to the absorption from H2O and O2in the atmosphere of Earth.Results.We demonstrate the approach on data from the HARPS-N spectrograph and show how the extracted components can be scaled to remove H2O and O2telluric contamination with improved accuracy and at a significantly lower computational expense than the current state of the art synthetic approachmolecfit. We also demonstrate the capabilities ofTAUto remove telluric contamination from observations of the ultra-hot Jupiter HAT-P-70b allowing for the retrieval of the atmospheric signal. We publish the extracted components and an open-source code base allowing scholars to applyTAUon their own data.
Stellar angular momentum of disk galaxies at z  ≈  0.7 in the MAGIC survey
Authors: Mercier W. , Epinat B. , Contini T. , Krajnović D. , Ciesla L. , Lemaux B. C. , Abril-Melgarejo V. , Boogaard L. , Pelliccia D. 
Published: July 2023

Aims. At intermediate redshift, galaxy groups and clusters are thought to impact galaxy properties such as their angular momentum. We investigate whether the environment has an impact on the galaxies’ stellar angular momentum and identify underlying driving physical mechanisms.
Methods. We derived robust estimates of the stellar angular momentum using Hubble Space Telescope (HST) images combined with spatially resolved ionised gas kinematics from the Multi-Unit Spectroscopic Explorer (MUSE) for a sample of ∼200 galaxies in groups and in the field at z ∼ 0.7 drawn from the MAGIC survey. Using various environmental tracers, we study the position of the galaxies in the angular momentum–stellar mass (Fall) relation as a function of environment.
Results. We measured a 0.12 dex (2σ significant) depletion of stellar angular momentum for low-mass galaxies (M⋆ < 1010 M⊙) located in groups with respect to the field. Massive galaxies located in dense environments have less angular momentum than expected from the low-mass Fall relation but, without a comparable field sample, we cannot infer whether this effect is mass or environmentally driven. Furthermore, these massive galaxies are found in the central parts of the structures and have low systemic velocities. The observed depletion of angular momentum at low stellar mass does not appear linked with the strength of the over-density around the galaxies but it is strongly correlated with (i) the systemic velocity of the galaxies normalised by the dispersion of their host group and (ii) their ionised gas velocity dispersion.
Conclusions. Galaxies in groups appear depleted in angular momentum, especially at low stellar mass. Our results suggest that this depletion might be induced by physical mechanisms that scale with the systemic velocity of the galaxies (e.g., stripping or merging) and that such a mechanism might be responsible for enhancing the velocity dispersion of the gas as galaxies lose angular momentum.
Partial Bowls Using the Haemonetics Cell Saver 5: Does It Produce a Quality Product?
Authors: Serrick Cyril J. , Scholz Mary 
Published: July 2023

Controversy still exists on the validity of processing a partial bowl during the collection of shed blood lost through surgery during cell salvaging. The purpose of this study was to assess the quality of red blood cells produced from a partial bowl of autologous suctioned blood using the Haemonetics Cell Saver 5. Suctioned blood was collected from 17 patients undergoing cardiac surgery. A partially filled cell saver bowl was washed with 1500 mL of NaCl. Reservoir and processed blood samples were examined for potassium, leukocytes, hematocrit, platelets, and plasma-free hemoglobin and then compared with 22 previously studied full bowls. Results are summarized in the table below:In conclusion, the Haemonetics Cell Saver 5 can produce a quality product from washing a partial bowl with a better washout of white blood cells compared with a full bowl. However, there is a reduction in red blood cell recovery.
Injuries and Overuse Syndromes in Rink Hockey Players
Authors: Husen Martin , Burgsmüller Lars , Burggraf Manuel , Jaeger Marcus , Dudda Marcel , Kauther Max 
Published: July 2023

AbstractRink Hockey is a high-speed low-contact sport with a widely recognized injury potential.
Played with a hard ball by players wearing little or no protective gear, the rates of
concussions and head injuries are of high interest. In this study, we reviewed and
investigated injuries sustained by 108 German National League rink hockey players. We
conducted an epidemiological cross-sectional study to determine sport-specific injuries and
injury patterns in female and male rink hockey players. Data were collected by a standardized
questionnaire. A total of 108 players participated in the study. The combined rate of injuries
were 9.4/1000 athlete exposures. There was no significant difference between injury rates
during games and practice. A sexspecific difference was not detected. Head injuries were the
most frequent type (20.8 % of all injuries). Concussions made up 7 % of all head injuries with
a rate of 0.76/1000 athlete exposure. Ball contact was the cause for 31 % of injuries, while
player contact generated 26.2 % of all injuries. High rates of ball-contact-related injuries
resulted in time loss and medical consultations. Head injuries were frequent, however did not
result in significant time loss as compared to other injuries. The use of protective gear
should be recommended.
Copper-Catalyzed Construction of Amide Linkages via Coupling between Unactivated Acids and Amines
Authors: Bhadra Sukalyan , Rahaman Ajijur 
Published: July 2023

AbstractTraditional amide linkage forming reactions by the coupling between an acid and an amine rely primarily on triggering the carboxylic acid counterpart with (over)stoichiometric activating agent(s) and generate unacceptable quantity of nondisposable waste, leading to poor atom economy. Herein, we report an efficient catalytic amide synthesis that proceeds through the in situ activation of the amine counterpart in the form of a reactive N-formyl amine species. The strategy gives an expedient access to an array of structurally varied amides, including dipeptides, from numerous genre of acids and amines without producing stoichiometric solid wastes.
Risco de lesão neurovascular durante a fixação com parafuso de fraturas da tuberosidade da tíbia em pacientes pediátricos e adolescentes
Authors: Biolatto Paula , Kothari Alpesh , Masquijo Javier 
Published: July 2023

Resumo
Objetivo Revisar estudos de ressonância magnética (RM) do joelho para análise da localização das estruturas neurovasculares (ENVs) e definição do risco de fixação bicortical.
Métodos As distâncias entre o córtex posterior e as ENVs poplíteas foram medidas nas RMs de 45 adolescentes (50 joelhos) em 3 níveis (C1: centro da epífise proximal da tíbia; C2: 10 mm distalmente à fise e C3: 20 mm distalmente à fise). Considerou-se que as ENVs entre 5 mm e 10 mm da incisão estavam na zona de risco moderado de lesão, as ENVs a menos de 5 mm da incisão, na zona de alto risco de lesão, e as ENVs a mais de 10 mm da incisão, na zona de baixo risco de lesão. O teste t de Student independente foi usado para comparar a distância até as ENVs com o gênero, a maturidade esquelética e a distância entre a tuberosidade tibial e a garganta (fundo) da tróclea (TT-GT). Valores de p < 0,05 foram considerados estatisticamente significativos.
Resultados A trajetória do parafuso em C1 apresentou maior risco de lesão à artéria e à veia poplítea em comparação com outras trajetórias (p < 0,001). A artéria poplítea apresenta risco de lesão alto em C1 (4,2 ± 2,2 mm) e moderado em C2 (9,6 ± 2,4 mm), e a veia poplítea tem risco moderado em C1 (6,0 ± 2,7 mm) e baixo em C2 e C3 (10,8 ± 3,1 mm e 12,05 ± 3,1 mm, respectivamente). A posição C3 apresentou o menor risco de lesão dessas estruturas (p < 0,001). A distância entre o córtex tibial posterior e o nervo tibial posterior foi inferior a 15 mm nos 3 níveis analisados (C1: 11,0 ± 3,7 mm; C2: 13,1 ± 3,8 mm; e C3: 13 ± 3,9 mm).
Conclusões Este estudo esclarece que os vasos poplíteos correm risco de lesão durante a fixação do parafuso na tuberosidade tibial, principalmente durante a perfuração da epífise proximal da tíbia. A perfuração monocortical e a fixação com parafusos são recomendadas para o tratamento cirúrgico das fraturas da tuberosidade tibial.
Nível de Evidência III Estudo diagnóstico.
Displasia do desenvolvimento do quadril – Parte 1
Authors: Braga Susana Reis , Júnior Amâncio Ramalho , Akkari Miguel , Figueiredo Marina Juliana Pita Sassioto Silveira , Waisberg Gilberto , Santili Claudio 
Published: July 2023

ResumoO termo displasia do desenvolvimento quadril (DDQ) refere-se à condição na qual a articulação sofre alterações na sua formação durante os últimos meses da vida intrauterina ou nos primeiros meses após o nascimento. No espectro de apresentação, varia desde a instabilidade femuroacetabular, passando por estádios de displasia até a completa luxação. O diagnóstico precoce é fundamental para o sucesso do tratamento. A triagem através do exame clínico incluindo manobras apropriadas é imprescindível nos recém-nascidos e nas avaliações subsequentes durante o crescimento da criança.O rastreamento ultrassonográfico é indicado nos bebês sob suspeita clínica e muito mais recomendável naqueles que tiveram apresentação pélvica para o parto ou que tenham antecedentes familiares. A ultrassonografia do quadril nos primeiros meses seguida da radiografia da bacia após o 4° ou 6° mês de vida são os exames que determinam o diagnóstico e auxiliam o seguimento.O tratamento está baseado na obtenção de uma redução concêntrica e na manutenção e estabilização do quadril, propiciando a remodelação articular. Inicialmente, as órteses de flexão/abdução são a escolha; em crianças maiores pode ser necessário o uso de gesso após redução incruenta com ou sem tenotomia; redução aberta pode ser indicada e após os 18 meses as osteotomias pélvicas associadas a capsuloplastia e eventuais osteotomias acetabular e femoral.Crianças tratadas devem ser acompanhadas durante todo o seu crescimento pelo eventual risco de displasias tardias.
Transadaptation and Validation of the Telugu Version of the Dysphagia Handicap Index
Authors: Dasari Philemon Benison , Verma Himanshu , Madishetty Harisha , Pagidimarri Jothirmai , Balaji Janaki 
Published: July 2023

AbstractDysphagia Handicap Index (DHI) is a clinically effective, concise, and user-friendly tool for assessing the functional impact of dysphagia in clinical populations. The present study aims to trans-adapt the DHI in the Telugu language and assesses its psychometric properties. The present study was conducted in two phases. The first phase includes translating and adapting the DHI tool into Telugu (T-DHI). The second phase includes an analysis of the psychometric properties of the trans-adapted Telugu version of the DHI. The DHI was translated into the Telugu language using the forward–backward translation method. The psychometric analysis was done on 100 participants. All the participants underwent a detailed clinical swallow examination after filling the T-DHI. The overall internal consistency and Guttmann split-half reliability for the Telugu version of the DHI were good. The correlation between the T-DHI subscales and the self-perceived severity of dysphagia was found to be high. The comparison of the T-DHI scores of the control and experimental groups revealed a significant difference. The T-DHI is a reliable and valid tool to assess the quality of life of the Telugu-speaking dysphagia population.
Characterization of non-Boltzmann CN X2Σ+ behind shock waves in CH4–N2 via broadband ultraviolet femtosecond absorption spectroscopy
Authors: Radhakrishna Vishnu , Tancin Ryan J. , Goldenstein Christopher S. 
Published: July 2023

This article describes the temporal evolution of rotationally and vibrationally non-Boltzmann CN X2Σ+ formed behind reflected shock waves in N2–CH4 mixtures at conditions relevant to atmospheric entry into Titan. A novel ultrafast (i.e., femtosecond) laser absorption spectroscopy diagnostic was developed to provide broadband (≈400 cm−1) spectrally resolved (0.02 nm resolution) measurements of CN absorbance spectra belonging to its B2Σ+ ← X2Σ+ electronic system and its first four Δv = 0 vibrational bands (v″ = 0, 1, 2, 3). Measurements were acquired behind reflected shock waves in a mixture with 5.65% CH4 and 94.35% N2 at initial chemically and vibrationally frozen temperatures and pressures of 4400–5900 K and 0.55–0.75 bar, respectively. A six-temperature line-by-line absorption spectroscopy model for CN was developed to determine the rotational temperature of CN in v″ = 0, 1, 2, and 3, as well as two vibrational temperatures via least-squares fitting. The measured CN spectra revealed rotationally and vibrationally non-Boltzmann population distributions that strengthened with increasing shock speed and persisted for over 100 µs. The measured vibrational temperatures of CN initially increase in time with the increasing CN mole fraction and eventually exceed the expected post-shock rotational temperature of N2. The results suggest that strong chemical pumping is ultimately responsible for these trends and that, at the conditions studied, CN is primarily formed in high vibrational states within the A2Π or B2Σ+ state at characteristic rates, which are comparable to or exceed those of key vibrational equilibration processes.
Robust relativistic many-body Green’s function based approaches for assessing core ionized and excited states
Authors: Kehry Max , Klopper Wim , Holzer Christof 
Published: July 2023

A two-component contour deformation (CD) based GW method that employs frequency sampling to drastically reduce the computational effort when assessing quasiparticle states far away from the Fermi level is outlined. Compared to the canonical CD-GW method, computational scaling is reduced by an order of magnitude without sacrificing accuracy. This allows for an efficient calculation of core ionization energies. The improved computational efficiency is used to provide benchmarks for core ionized states, comparing the performance of 15 density functional approximations as Kohn–Sham starting points for GW calculations on a set of 65 core ionization energies of 32 small molecules. Contrary to valence states, GW calculations on core states prefer functionals with only a moderate amount of Hartree–Fock exchange. Moreover, modern ab initio local hybrid functionals are also shown to provide excellent generalized Kohn–Sham references for core GW calculations. Furthermore, the core–valence separated Bethe–Salpeter equation (CVS-BSE) is outlined. CVS-BSE is a convenient tool to probe core excited states. The latter is tested on a set of 40 core excitations of eight small inorganic molecules. Results from the CVS-BSE method for excitation energies and the corresponding absorption cross sections are found to be in excellent agreement with those of reference damped response BSE calculations.