bluuebunny/crossref_metadata_2025_split huggingface dataset:
Estimating uncertainties in the back-mapping of the fast solar wind
Authors: Koukras A. , Dolla L. , Keppens R. 
Published: December 2024

Context. Although the most likely source regions of fast solar wind relate to coronal holes, the exact acceleration mechanism that drives the fast solar wind is still not fully understood. An important approach that can improve our understanding involves the combination of remote sensing and in situ measurements, often referred to as linkage analysis. This linkage tries to identify the source location of the in situ solar wind with a process called back-mapping. Typically, back-mapping is a combination of ballistic mapping, where the solar wind draws the magnetic field into the Parker Spiral at larger radial distances, and magnetic mapping, where the solar wind follows the magnetic field line topology from the solar surface to a point in the corona where the solar wind starts to expand radially.
Aims. By examining the different model ingredients that can affect the derived back-mapped position, we aim to provide a more precise estimate of the source location and a measure of confidence in the mapping procedure. This can be used to improve the connection between remote sensing and in situ measurements.
Methods. For the ballistic mapping, we created velocity profiles based on Parker wind approximations. These profiles are constrained by observations of the fast solar wind close to the Sun and are used to examine the mapping uncertainty. The coronal magnetic field topology from the solar surface up to an outer surface (the source surface) radius RSS is modeled with a potential field source surface extrapolation (PFSS). As inputs, the PFSS takes a photospheric synoptic magnetogram and a value for the source surface radius, where this latter is defined as the boundary after which the magnetic field becomes radial. The sensitivity of the extrapolated field is examined by adding reasonable noise to the input magnetogram and performing a Monte Carlo simulation, where we calculate the source position of the solar wind for multiple noise realizations. Next, we examine the effect of free parameters –such as the height of the source surface– and derive statistical estimates. We used Gaussian Mixture clustering to group the back-mapped points associated with different sources of uncertainty, and provide a confidence area for the source location of the solar wind. Furthermore, we computed a number of metrics to evaluate the back-mapping results and assessed their statistical significance by examining three high-speed stream events. Finally, we explored the effect of corotation close to the Sun on the derived source region of the solar wind.
Results. For back-mapping with a PFSS corona and ballistic solar wind, our results show that the height of the source surface produces the largest uncertainty in the source region of the fast solar wind, followed by the noise in the input magnetogram, and the choice of the velocity profile. Additionally, we display the ability to derive a confidence area on the solar surface that represents the potential source region of the in situ-measured fast solar wind.
La méthode de l’interprétation du rêve : un outil pour analyser le jeu dans le Lieu d’accueil enfant-parent
Authors: Anaya Adriana Barrera , Rosenblum Ouriel , Bidaud Éric 
Published: December 2024

Dans les Lieux d’Accueil Enfant-Parent (LAEP) nous accueillons l’enfant de zéro à quatre ans qui n’a pas encore les ressources verbales pour s’exprimer. Notre tâche ici, entre autres, consiste à interpréter et « traduire » les résonances archaïques de l’enfant ; situation qui ne s’avère pas facile. Si la méthode de l’interprétation du rêve a été conçue par Freud pour comprendre et analyser les éléments archaïques et symboliques de ses patients, pouvons-nous adapter cette méthode à l’interprétation du jeu du petit enfant ? Cet article a pour but de comparer les similitudes entre le rêve et le jeu au regard de leurs processus de formation. Après avoir rappelé le fonctionnement du Lieu d’accueil enfant-parent, nous étudierons un exemple de jeu d’un enfant issu de ce dispositif clinique spécifique. À partir de la méthode de l’interprétation du rêve freudienne, nous y articulerons la technique d’interprétation du jeu de l’enfant en identifiant les contenus manifestes sur la base des hypothèses concernant le contenu latent dans l’exemple du jeu. Cette recherche pourra ainsi nous aider à mieux saisir et explorer l’Inconscient chez l’enfant avant 4 ans. Ce, depuis un point de vue différent qui est l’analyse du rêve.
Eficácia do bloqueio dos nervos geniculares em pacientes com osteoartrite: Um estudo comparativo com e sem auxílio de fluoroscopia
Authors: Said Nour Aliman El Majzoub , Mestriner Alexandre Barbieri , Sungaila Heloisa , Mameri Enzo Salviato , Franciozi Carlos Eduardo Silveira , Kubota Marcelo Seiji 
Published: December 2024

Resumo
Objetivo Comparar a eficácia da fluoroscopia como método auxiliar no bloqueio dos nervos geniculares (BNG) com o bloqueio guiado por parâmetros anatômicos, sem auxílio de imagem na redução da dor.
Métodos No total, 23 pacientes foram submetidos ao BNG com o auxílio de fluoroscopia ou de parâmetros anatômicos. O Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) e a Escala Visual Analógica (EVA) foram aplicados em 6 momentos (pré-bloqueio, após 1 hora, 24 horas, 7 dias, 28 dias e 90 dias).
Resultados A média de idade da amostra foi de 64,5 ± 4,8 anos, e o Índice de Massa Corporal (IMC), de 31,4 ± 6,1 Kg/m2; 16 pacientes (69,6%) eram mulheres. Pela subescala da dor do WOMAC, foi obtida redução significativa (p < 0,05) da dor nos dois grupos em todos os momentos. Tal redução foi maior após 1 hora em ambos os grupos, com taxas de 64,3% e 64,6% no grupo de fluoroscopia e de parâmetros anatômicos, respectivamente, sem diferença significativa. Ao final de 90 dias, foi obtida uma redução da dor de 35,7% e 44,6% nos grupos de fluoroscopia e de parâmetros anatômicos, respectivamente. Pela EVA, também foi observada redução significativa (p < 0,05) da dor em ambos os grupos e em todos os momentos. A redução foi mais importante após 1 hora: 78,0% no grupo de fluoroscopia e 82,2% no grupo de parâmetros anatômicos, sem diferença significativa. Ao final de 90 dias, foi obtida uma redução da dor de 36,5% no grupo de fluoroscopia e de 24,6% no grupo de parâmetros anatômicos respectivamente.
Conclusão Os BNGs guiados por fluoroscopia ou apenas por parâmetros anatômicos foram igualmente eficazes em termos de magnitude ou duração de alívio da dor.
An analytical framework for corpus-based translation studies
Authors: Wang Guofeng , Xin Yihang 
Published: December 2024

AbstractCorpus-based translation studies (CBTS) have undergone significant evolution, transitioning from descriptive methodologies to theoretical and applied approaches in recent years. However, the analysis of corpus-based research outcomes is crucial, and the absence of a unified framework often leads to less experienced researchers overlooking critical factors. This, in turn, results in varied interpretations of the same data, substantially compromising the objectivity and scientific rigor of the approach. Inspired by House’s (2014) model of translation quality assessment, Berman (2009)’s view on translation criticism, and De Sutter and Lefer (2020)’s multi-methodological, multifactorial, and interdisciplinary approach to CBTS, this study proposes a tripartite empirical-analytical framework to help researchers identify the potential factors influencing translator decision-making: textual characteristics, translator’s personal attributes, and the sociocultural context of the target language. To evaluate its utility, utilizing the mixed-effects logistic regression method, a case study is conducted to examine significant factors conditioning the reporting verb say and its Chinese translations in an English-Chinese parallel corpus of news texts, employing Appraisal Theory as the basis to determine equivalences and non-equivalences between the source language and target language. The case study shows that the framework facilitates a comprehensive analysis of the corpus findings by encompassing diverse perspectives within this scaffold. As digital technology, studies in multimodal discourse, and CBTS continue to intersect, the framework can also incorporate non-linguistic elements and AI translation tools, provided there are explicit criteria for examining translation phenomena. This framework equips researchers with a comprehensive set of perspectives, enabling them to consider as many factors as possible, thus bolstering the objectivity and scientific rigor of CBTS. The combined use of the structured framework and the multivariate analysis technique offers a holistic approach and stands as a critical advancement in CBTS by standardizing the analysis process and mitigate the subjective variability inherent in explaining translation phenomena.
Processes of the second order with respect to the electron–phonon interaction in point contacts of normal metals
Authors: Kulik I. O. , Omel’yanchuk A. N. , Tuluzov I. G. 
Published: December 2024

The authors have derived, to within terms of the second order in d/lε∞ [d is the contact diameter, lε∞=vF/λωD is the inelastic electron mean free path, and λ is the electron-phonon interaction (EPI) constant], an expression for the second derivative of the I–V characteristic, gpc(1)(eV)+ const1∫​0eVgpc(2)(ω)(dω)/(ω)+ const2∫​0eVfpc(ω,eV−ω)dω, where gpc(1)(ω)≡gpc(ω)=α^2(ω)F(ω) is the first-order EPI function of the contact, and gpc(2)(ω) and fpc(ω1,ω2) are second-order EPI functions of the contact. The second term represents an energy-dependent “background” that appears in point-contact spectra because of reabsorption and drag of nonequilibrium phonons, and the third term describes two-phonon processes. The function gpc(2)(ω) is distinguished from gpc(1)(ω) by (in addition to the K factor) the presence of the phonon group velocity wz=δω˙q/δqz in the denominator of the integrand and, therefore, is a more singular function of ω than is qpc(1)(ω), and contains additional information about the electron–phonon interaction of the metal.
Key comparison BIPM.RI(I)-K5 of the air-kerma standards of the GUM, Poland and the BIPM in 137Cs gamma radiation
Authors: Kessler C , Roger P , Derlaciński M , Szymko M 
Published: December 2024

Main text
A new indirect comparison of the standards for air kerma of the Główny Urząd Miar (GUM), Poland, and of the Bureau International des Poids et Mesures (BIPM) was carried out in the 137Cs radiation beam using the radiation protection facility of the International Atomic Energy Agency (IAEA) in Seibersdorf, Austria, in June 2024. The comparison result, based on the calibration coefficients for two transfer chambers and expressed as a ratio of the GUM and the BIPM standards for air kerma, is 1.0005 with a combined standard uncertainty of 2.8 parts in 103. The results are analysed and presented in terms of degrees of equivalence, suitable for entry in the BIPM key comparison database, to update the 2006 comparison result.
To reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database https://www.bipm.org/kcdb/.
The final report has been peer-reviewed and approved for publication by the CCRI, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).
Quantitative Measurement of Temperature-Dependent Quasiparticle Scattering of the Topological Surface States in Bi2Se3
Authors: Lu Shengyue , Zhang Yeqinbo , Ma Xueyan , Li Jingze , Deng Yongkai , Liu Yunquan 
Published: December 2024

Abstract
The quasiparticle scattering processes of the topological surface state (TSS) in three-dimensional topological insulators (TIs) have a vital effect on the many-body interactions and potential applications of topological materials. In this study, we performed high-resolution temperature-dependent angle-resolved photoemission spectroscopy analysis of the 3D strong TI Bi2Se3. Using an ab initio simulation, we analyzed the temperature dependence of the electronic structure and lifetime broadening of the TSS, which are closely associated with the quasiparticle scattering process, i.e., electron–phonon coupling and spin-dependent scattering. We show that, at a low temperature (7 K), the spin-dependent electron scattering facilitates the anisotropic scattering rate of the TSS. Conversely, at room temperature (300 K), the electron–phonon coupling dominates the contribution to the scattering rate. The scattering rate increases with temperature and becomes uniform in momentum space owing to the temperature dependence of quasiparticle scattering. The quantitative study of temperature-dependent scattering rates in TSS is crucial to understanding the topological property and transport mobility of Dirac fermions for fundamental studies and potential applications.
A Linear Programming Approach to Ensuring Equitable Distribution of COVID-19 Vaccines in Lower Income Countries
Authors: Gupta Sandhya , Srivastava R.K. 
Published: December 2024

Abstract
The equitable dissemination of COVID-19 vaccinations in lower-income nations presents a crucial worldwide dilemma, necessitating smart allocation techniques to guarantee impartial and effective coverage. This paper introduces a mathematical approach that utilizes Linear Programming (LP) to efficiently distribute vaccination doses among lower-income countries. The model incorporates crucial variables such population magnitude, healthcare infrastructure capability, susceptibility to the virus, financial limitations, and worldwide vaccine availability. The linear programming (LP) model is constructed using decision variables that indicate the quantity of vaccination doses assigned to each country. The goal function seeks to optimize the fair allocation of resources by giving weights to countries according to certain criteria. Constraints are imposed to ensure compliance with global vaccine supply, population coverage targets, healthcare capacity, vulnerability concerns, and budget limits. The non-negativity constraints guarantee that the vaccination allocations will always be greater than or equal to zero. The model is designed to be flexible, taking into account dynamic factors such as emerging viral strains and fluctuating vaccination availability. It highlights the significance of timely data updates to facilitate decision-making. The LP solver, such as the simplex method or interior-point approaches, is used to determine the best solution that achieves a fair distribution while considering logistical limitations. The results obtained from the linear programming (LP) model offer practical and effective guidance for policymakers and health organizations. These insights help in distributing COVID-19 vaccinations in a way that maximizes their impact and reduces inequalities among lower-income countries. The approach recognizes the interdependence of global health and emphasizes the need for coordinated endeavors in addressing the pandemic. This mathematical model is a useful tool in the ongoing efforts to distribute COVID-19 vaccinations fairly and efficiently. It contributes to the worldwide aim of obtaining universal immunity and overcoming the problems posed by the epidemic in lower-icnome countries.
Ramification of Nd3+ substitution on Structural, Optical, and Dielectric Properties of LaPO4 Ceramics
Authors: Khanna Kanchan , Kumar Akshay , Ram Tiku , Dwivedi Sunil , Kumar Sunil 
Published: December 2024

Abstract
Phosphors
x
Nd3+
1-

x
La3+PO4 where x = 0.02, 0.04 and 0.06 have been reliably synthesized utilizing Auto Combustion method. Structural phase formation has been verified using X-ray diffraction, while scanning electron microscopy was used for morphological and elemental investigation. Luminescence behavior has been studied from PL spectra whereas CIE coordinates give information about luminescence shift. The dielectric behavior of prepared phosphor has been investigated using impedance analysis.
Synthesis and Characterization of Mixed Phase Manganese Oxide Nanoparticles Prepared by Simple Co-Precipitation Method
Authors: Kapil Ishita , Yadav Chandrakala , Yadav Pinky , Bhaduri Ayana 
Published: December 2024

Abstract
With their exceptional qualities such as greater specific surface area, a greater surface atoms fraction, non-toxicity, and outstanding redox properties, manganese oxide nanoparticles-a transition metal oxide with a variety of crystal phases, morphologies, and structural diversity-are attracting attention for use in several storage science applications, particularly in batteries, supercapacitors, energy conversion, environmental catalysis, and wastewater treatment. Particle size, morphology, surface area, and Mnx
+ oxidation state are just a few of the variables that must be precisely controlled to fully realize their application potential. The present study outlines the synthesis of manganese oxide nanoparticles through a facile co-precipitation process that employs double precursor salts of manganese, namely manganese sulphate and potassium permanganate, along with three surfactants: Cationic-Potassium chloride (KCl), Non-ionic - Polyethylene glycol (PEG), and Anionic- sodium dodecyl sulphate (SDS), respectively. At 500°C, the samples are subsequently annealed. Samples are examined using XRD, both as prepared and annealed. In the absence of any calcination treatment, the MnO2 -precursor was primarily an amorphous phase with indistinct amorphous α-MnO2 crystal patterns for all the samples. Well-defined crystalline prominent peaks of α-Mn2O3 with some traces of α-MnO2 visible for samples prepared with different surfactants and without surfactants after calcination at 500°C. Crystallite sizes and macrostrains etc are estimated. By using this one-pot calcination method, mixed phases of α-MnO2 and α-Mn2O3 were produced. The thermogravimetric analysis also supports the results.
Effect of zinc oxide dopant on the structural, optical, and magnetic properties of α-Fe2O3 nanocrystalline structure
Authors: Seema S , Bhatt Praveen , Meenakshi  , Sharma Rajesh 
Published: December 2024

Abstract
Recent research demonstrates that unique progressive properties of nanomaterials have contributed to significant advancements in several fields. Therefore, in the current study zinc oxide (5%, 10%, and 20%) - doped Fe2O3 nanoparticles were synthesized by an advanced co-precipitation method. Further, the prepared samples were calcined for two hours at a temperature of 600°C and the samples were characterized using various techniques to check their suitability in various applications. For that purpose, initially the formation of nanoparticles was confirmed using X-Ray diffraction analysis (XRD) data that concluded the formation of hexagonal crystalline structure. The crystallite size was also calculated using Debye Scherrer formula and size of particle increased from 23nm to 30nm with increase in dopant concentration. The IR spectroscopy were used to analysed the various calcined samples and the results show that the sharp peaks at position 540 cm−1 and 625 cm−1 were due to O-Fe-O vibration alpha and gamma Fe2O3 molecules respectively. The UV -Vis spectroscopy were used to determine the optical band gap of calcined samples through Tauc Plots and the results of study reflected that small decrement of band occurred with increase of dopant concentration. The magnetic properties of the calcined sample were analysed by Vibrating sample magnetometer (VSM) and it was observed that the saturation magnetisation intensity decreases as doping concentration of zinc oxide increases.
Thermal analysis of chemically reactive MHD flow through rotating horizontal channel in the existence of Hall current and radiation
Authors: Saboo Ruchi , Sharma Pooja , Chaudhary Ravi , Sharma Tarun 
Published: December 2024

Abstract
The current work aims to analyze the chemically reactive, MHD convective flow through the horizontal porous (Darcy’s model) channel, which rotates in its plane due to radiation and hall current existence. The flow prototype is designed, and equations are formed and the closed-form results are achieved. In addition, non-dimensional quantities (such as; shear stress, Nusselt and Sherwood numbers) are explored for concerned flow constraints. It is perceived that velocity detracts in the x and y direction with the rise in the parameter of rotation, and the temperature field decreases with the growth in radiation, heat source and Prandtl number. The concentration profile abruptly increases due to the growth in a chemical reaction. This work finds notable applications in the engineering domain.
Complement of Equal-Square Graph of Finite Groups
Authors: Kumar Narinder 
Published: December 2024

Abstract
The Complement of Equal-Square graph of a finite group G denoted as CES(G) is a finite, simple and undirected graph having pair of different vertices x
1 and x
2 have edge iff

x
1

2

≠

x
2

2

. This research gives graphical representation of the Complement of Equal-Square graph of the cyclic and dihedral groups is done. Structural properties such as clique number, degree of a vertex, independent number, connectedness, girth, chromatic number, and matching number of Complement of Equal-Square graph of the cyclic and dihedral group are studied.
Prediction of induced soil vibration during pile vibrodriving using Dynamic Mode Decomposition (DMD)
Authors: Williams-Riquer Francisco , Chmelnizkij Alexander , Alkateeb Diaa , Grabe Jürgen 
Published: December 2024

Abstract
This study investigates using the Dynamic Mode Decomposition (DMD) algorithm to perform approximations and time-ahead prediction of soil vibrations during the vibrodriving process. Geotechnical applications face challenges in modeling and predicting soil vibrations due to the soil’s heterogeneous nature. This study addresses this issue using a purely data-driven approach. Geophone data collected during pile installation using a vibrodriver were used to demonstrate the feasibility of the DMD algorithm. The research reveals that both the standard DMD and augmented DMD, which incorporate delay coordinates, can achieve accurate predictions, with the augmented DMD producing more accurate time-ahead predictions of the vibrations. The results emphasize the potential practical utility of data-driven methods for vibration prediction in geotechnical applications.
Designing a vibration energy harvester for several directions of excitation in planar motion
Authors: Shabanalinezhad Hossein , Malcovati Piero , Svelto Cesare , Gatti Gianluca 
Published: December 2024

Abstract
Harvesting energy from a mechanical vibration source is always challenging and comes with drawbacks, especially when the vibration input changes direction very often. This research proposes a novel design to harvest energy from a planar mechanical vibration source no matter its direction of oscillation. To achieve this, a spiral beam with a tip mass is designed to be flexible to various directions of the vibration input in a horizontal plane, which is orthogonal to the direction of gravity. An approximate analytical investigation is first performed. Numerical simulations are then conducted using commercial FEA software and the results are in good agreement with the analytical approach. Numerical simulations show that the tip mass acts symmetrically in the plane, although the system is not geometrically symmetric. To experimentally validate the proposed configuration, a 3D-printed prototype device was manufactured and attached to a shaker, which induced a vibrating motion for the tests. A piezoelectric patch was attached to the curved beam to generate electrical energy and measurements of produced open-circuit voltages were taken for different directions of the exciting vibration.