bluuebunny/crossref_metadata_2025_split huggingface dataset:
Whistler waves observed by Solar Orbiter/RPW between 0.5 AU and 1 AU
Authors: Kretzschmar M. , Chust T. , Krasnoselskikh V. , Graham D. , Colomban L. , Maksimovic M. , Khotyaintsev Yu. V. , Soucek J. , Steinvall K. , Santolík O. , Jannet G. , Brochot J.-Y. , Le Contel O. , Vecchio A. , Bonnin X. , Bale S. D. , Froment C. , Larosa A. , Bergerard-Timofeeva M. , Fergeau P. , Lorfevre E. , Plettemeier D. , Steller M. , Štverák Š. , Trávníček P. , Vaivads A. , Horbury T. S. , O’Brien H. , Evans V. , Angelini V. , Owen C. J. , Louarn P. 
Published: October 2021

Context. Solar wind evolution differs from a simple radial expansion, while wave-particle interactions are assumed to be the major cause for the observed dynamics of the electron distribution function. In particular, whistler waves are thought to inhibit the electron heat flux and ensure the diffusion of the field-aligned energetic electrons (Strahl electrons) to replenish the halo population.
Aims. The goal of our study is to detect and characterize the electromagnetic waves that have the capacity to modify the electron distribution functions, with a special focus on whistler waves.
Methods. We carried out a detailed analysis of the electric and magnetic field fluctuations observed by the Solar Orbiter spacecraft during its first orbit around the Sun, between 0.5 and 1 AU. Using data from the Search Coil Magnetometer and electric antenna, both part of the Radio and Plasma Waves (RPW) instrumental suite, we detected the electromagnetic waves with frequencies above 3 Hz and determined the statistical distribution of their amplitudes, frequencies, polarization, and k-vector as a function of distance. Here, we also discuss the relevant instrumental issues regarding the phase between the electric and magnetic measurements as well as the effective length of the electric antenna.
Results. An overwhelming majority of the observed waves are right-handed circularly polarized in the solar wind frame and identified as outwardly propagating quasi-parallel whistler waves. Their occurrence rate increases by a least a factor of 2 from 1 AU to 0.5 AU. These results are consistent with the regulation of the heat flux by the whistler heat flux instability. Near 0.5 AU, whistler waves are found to be more field-aligned and to have a smaller normalized frequency (f/fce), larger amplitude, and greater bandwidth than at 1 AU.
Rossby numbers and stiffness values inferred from gravity-mode asteroseismology of rotating F- and B-type dwarfs
Authors: Aerts C. , Augustson K. , Mathis S. , Pedersen M. G. , Mombarg J. S. G. , Vanlaer V. , Van Beeck J. , Van Reeth T. 
Published: October 2021

Context.Multi-dimensional (magneto-)hydrodynamical simulations of physical processes in stellar interiors depend on a multitude of uncalibrated free parameters, which set the spatial and time scales of their computations.Aims.We aim to provide an asteroseismic calibration of the wave and convective Rossby numbers, and of the stiffness at the interface between the convective core and radiative envelope of intermediate-mass stars. We deduce these quantities for rotating dwarfs from the observed properties of their identified gravity and gravito-inertial modes.Methods.We relied on near-core rotation rates and asteroseismic models of 26 B- and 37 F-type dwarf pulsators derived from 4-yearKeplerspace photometry, high-resolution spectroscopy, andGaiaastrometry in the literature to deduce their convective and wave Rossby numbers. We computed the stiffness at the interface of the convective core and the radiative envelope from the inferred maximum buoyancy frequency at the interface and the convective turnover frequency in the core. We use those asteroseismically inferred quantities to make predictions of convective penetration levels, local flux levels of gravito-inertial waves triggered by the convective core, and of the cores’ potential rotational and magnetic states.Results.Our sample of 63 gravito-inertial mode pulsators covers near-core rotation rates from almost zero up to the critical rate. The frequencies of their identified modes lead to models with stiffness values between 102.69and 103.60for the B-type pulsators, while those of F-type stars cover the range from 103.47to 104.52. The convective Rossby numbers derived from the maximum convective diffusion coefficient in the convective core, based on mixing length theory and a value of the mixing length coefficient relevant for these pulsators, vary between 10−2.3and 10−0.8for B-type stars and 10−3and 10−1.5for F-type stars. The 17 B-type dwarfs with an asteroseismic estimate of the penetration depth reveal it to be in good agreement with recent theory of convective penetration that takes rotation into account. Theoretical estimates based on the observationally inferred convective Rossby numbers and stiffness values lead to local stochastically-excited gravito-inertial wave fluxes which may exceed those predicted for non-rotating cores, in agreement with observations. Finally, the convective core of rapid rotators is expected to have cylindrical differential rotation causing a magnetic field of 20–400 kG for B-type stars and of 0.1–3 MG for F-type stars.Conclusions.Our results provide asteroseismic calibrations to guide realistic (magneto-)hydrodynamical simultations of rotating (magnetised) core convection in stellar interiors of dwarfs and future modelling of transport and mixing processes in their interiors.
À la mémoire de Pierre Duffaut. Réflexions sur la sécurité des ouvrages hydrauliques et nucléaires
Authors: Piraud Jean 
Published: October 2021

L’objet de ce papier n’est pas de relater la carrière de P. Duffaut, mais de revenir sur deux aspects particuliers de sa carrière auxquels il a consacré de longues années :
– La rupture du barrage-voûte de Malpasset (Var, France), en 1959 : à la demande d’EDF, P. Duffaut a suivi toutes les investigations entreprises pour comprendre le mécanisme de la rupture de ce barrage et de ses fondations, ainsi que les actions en justice qui ont été menées. À côté des causes techniques de la rupture, aujourd’hui bien élucidées, sont réexaminés les facteurs organisationnels et humains qui ont contribué à cette catastrophe, à la lumière des conceptions d’aujourd’hui sur les responsabilités des différents acteurs ;
– Les centrales nucléaires à réacteur souterrain : P. Duffaut s’est efforcé de promouvoir cette idée, en se fondant sur le succès avéré des centrales hydroélectriques creusées dans des cavernes au rocher. Ce concept présente en effet des avantages majeurs en termes de protection du réacteur et de son voisinage contre les risques internes (dysfonctionnements) et externes (intrusions, sabotage, guerre…), et contre les risques naturels, sismiques en particulier. Il n’a guère été écouté de son vivant, mais l’idée de petits réacteurs modulaires enterrés et recouverts d’un remblai va bientôt être mise en œuvre.
Cultural diversity in unequal societies sustained through cross-cultural competence and identity valuation
Authors: Bunce John A. 
Published: October 2021

AbstractIn much contemporary political discourse, valued cultural characteristics are threatened by interaction with culturally distinct others, such as immigrants or a hegemonic majority. Such interaction often fosters cross-cultural competence (CCC), the ability to interact successfully across cultural boundaries. However, most theories of cultural dynamics ignore CCC, making cultural diversity incompatible with mutually beneficial inter-group interaction, and contributing to fears of cultural loss. Here, interview-based field methods at an Amazonian ethnic boundary demonstrate the prevalence of CCC. These data motivate a new theoretical mathematical model, incorporating competing developmental paths to CCC and group identity valuation, that illuminates how a common strategy of disempowered minorities can counter-intuitively sustain cultural diversity within a single generation: Given strong group identity, minorities in a structurally unequal, integrative society can maintain their distinctive cultural norms by learning those of the majority. Furthermore, rather than a rejection of, or threat to, majority culture, the valuation of a distinctive minority identity can characterize CCC individuals committed to extensive, mutually beneficial engagement with the majority as members of an integrative, multi-cultural society.
Epistemic injustice in the age of evidence-based practice: The case of fibromyalgia
Authors: Heggen Kristin Margrethe , Berg Henrik 
Published: October 2021

AbstractThe aim of this paper is to analyze epistemic interactions in healthcare practices. In clinical encounters, participants exchange and interpret knowledge. Patients suffering from fibromyalgia often report that healthcare professionals do not take their testimonies and interpretations seriously. Such experiences will be explored using the concept of epistemic injustice. Epistemic injustice is wrong done to someone in their capacity as a knower. In healthcare settings, epistemic injustice occurs when patients experience an unjustified discrediting as unreliable informants of their own illness experiences. First, we will argue that patients’ epistemic marginalization can be reframed as an epistemological problem. There is a gap between patients’ lived experience of illness and professionals’ conceptualization of illness as disease. This gap leads to two distinct conceptualizations, possibly causing harm to patients’ capacity as first-hand knowers. Second, we will analyze epistemic injustice in light of the dominant model of knowledge translation in medicine and healthcare, namely evidence-based practice (EBP). EBP intends to diminish the gap between scientific knowledge and clinical practice. EBP prioritizes knowledge obtained through clinical research over other forms of clinical knowledge and has the potential for harmful epistemic devaluation of patients’ stories.
Hydration-controlled excited-state relaxation in protonated dopamine studied by cryogenic ion spectroscopy
Authors: Hirata Keisuke , Kasai Ken-ichi , Grégoire Gilles , Ishiuchi Shun-ichi , Fujii Masaaki 
Published: October 2021

Ultraviolet (UV) and infrared (IR) spectra of protonated dopamine (DAH+) and its hydrated clusters DAH+(H2O)1–3 are measured by cryogenic ion spectroscopy. DAH+ monomer and hydrated clusters with up to two water molecules show a broad UV spectrum, while it turns to a sharp, well-resolved one for DAH+–(H2O)3. Excited state calculations of DAH+(H2O)3 reproduce these spectral features. The conformer-selected IR spectrum of DAH+(H2O)3 is measured by IR dip spectroscopy, and its structure is assigned with the help of quantum chemical calculations. The excited state lifetime of DAH+ is much shorter than 20 ps, the cross correlation of the ps lasers, revealing a fast relaxation dynamics. The minimal energy path along the NH → π proton transfer coordinate exhibits a low energy barrier in the monomer, while this path is blocked by the high energy barrier in DAH+(H2O)3. It is concluded that the excited state proton transfer in DAH+ is inhibited by water-insertion.
The low-complexity domain of the FUS RNA binding protein self-assembles via the mutually exclusive use of two distinct cross-β cores
Authors: Kato Masato , McKnight Steven L. 
Published: October 2021

Significance
Single amino acid changes causative of neurologic disease often map to the cross-β forming regions of low-complexity (LC) domains. All such mutations studied to date lead to enhanced avidity of cross-β interactions. The LC domain of the fused in sarcoma (FUS) RNA binding protein contains three different regions that are capable of forming labile cross-β interactions. Here we describe the perplexing effect of amyotrophic lateral sclerosis (ALS)-causing mutations localized to the LC domain of FUS to substantially weaken its ability to form one of its three cross-β interactions. An understanding of how these mutations abet uncontrolled polymerization of the FUS LC domain may represent an important clue as to how LC domains achieve their proper biological function.
The linguistic construction of business decisions
Authors: Szenes Eszter 
Published: October 2021

AbstractThis paper models analytical tools for identifying the linguistic resources at play in constructingbusiness decision-makingin high-scoring undergraduate business reports from a systemic functional linguistic perspective. Drawing on the discourse semantic system ofappraisaland coupling theory in systemic functional linguistics, this paper illustrates a process for analysing the linguistic construction of investment opportunities and risks in undergraduate business reports through the ‘coupling’ of different types of discourse semantic meanings. This study has pedagogical implications for making explicit the key language resources critical for constructing business decisions in undergraduate business studies.
Language in action
Authors: Doran Yaegan J. , Caldwell David , Ross Andrew S. 
Published: October 2021

Abstract
This paper explores language in sport. It draws on systemic functional linguistics to map variations in language
as coaches and players change situation, from setting up drills and giving feedback to calling for the ball during the intensity
of play. In particular, it explores grammatical and phonological shifts as coaches and players move more toward the
‘language–in–action’ pole of mode. It shows that the more language is used in relation to intense action on the field, the less
this meaning is given by the ‘higher levels’ of language (both its higher strata and higher ranks) and the more meaning that is
given by the ‘lower levels’ (lower strata and lower ranks). In terms of strata this shifts meaning from the higher stratum of
lexicogrammar to the lower stratum of phonology; in terms of rank, this breaks down clause structures to rely heavily on
group/phrase and word choices and flattens phonological patterns of intonation, rhythm and syllable structures to rely more on
voice quality and timing. This paper thus maps a rich space of registerial variation with significant deviations from typical
English patterns.
Theoretical optimal shape of a longest reach cantilever
Authors: Atanackovic Teodor M 
Published: October 2021

Abstract
The problem of finding the shape of initially straight elastic cantilever that minimizes volume, and satisfies certain condition at the free end is analyzed. The recently analyzed longest reach problem follows as a special case. New results are presented about shape of the cantilever, having prescribed volume and having longest reach. The Pontryagin’s maximum principle with cross-sectional area as ‘control’ is used in the optimization procedure.
Bandgap and wave propagation of spring–mass–truss elastic metamaterial with a scissor-like structure
Authors: Li Yingli , Li Hao , Liu Xiang , Yan Shiguang 
Published: October 2021

Abstract
Inspired by the inertial amplification mechanism and bandgap characteristic of periodic structures, a type of scissor-like elastic metamaterial is studied for low-frequency vibration attenuation in this paper. Firstly, the 1DOF (degree of freedom) scissor-like chain consisting of masses, trusses, and springs is investigated. The formation of inertial amplification is illustrated, that is, input horizontal movements are converted into larger vertical movements of vertex masses by a scissor-like structure. The resonance and anti-resonance phenomena in transmission curves are explained. Especially, the optimal configuration for low-frequency attenuation is obtained by analytical expressions of the dispersion relation. Then, a 2DOF spring–mass–truss chain is considered to open a bandgap below the vibration attenuation range of the 1DOF chain. The relative movement of masses at different frequencies is explored to understand the bandgap generation. The influence of parameters including the mass ratio, tensile stiffness ratio, shear stiffness ratio, and angle on bandgap boundaries is discussed. Finally, the spatial propagation of a wavelet packet is presented to illustrate the efficiency of the proposed structure in terms of minimizing a broadband excitation transmission. The transmitted component of a wavelet packet through three units of the proposed structure is only 3.8%, which is 22.8% of that through the classic 1D local resonance metamaterial.
Green synthesis of Nd substituted Co-Ni nanospinel ferrites: a structural, magnetic, and antibacterial/anticancer investigation
Authors: Almessiere Munirah A , Slimani Yassine , Rehman Suriya , Khan Firdos A , Sertkol Murat , Baykal Abdulhadi 
Published: October 2021

AbstractCo0.5Ni0.5Nd0.02Fe1.98O4(CoNiNdFO) nanospinel ferrites (NSFs) with and without plant extracts (cardamom seeds, date fruits, flaxseed, tragacanth gum, lavender seeds, and moringa) were prepared using a sol-gel approach. The impact of utilizing different plant extracts on the structural, morphological, and magnetic features of the final products is discussed. Room temperature (300 K) magnetization findings illustrate superparamagnetic (SPM) characteristics for the products synthesized using the cardamom and moringa plant extracts mediated sol-gel approach, whereas the remaining products display ferromagnetic characteristics. On the other hand, lower temperature (10 K) magnetization curves indicate that all the prepared samples exhibit ferromagnetic (FM) behavior. It was found that the magnetic parameters vary greatly with the synthesis approach, plant extract solution, distribution of cations, morphology, and size of NSFs, spin canting, etc. The obtained results indicate that the different synthesis approaches employed in the present investigation are simple, inexpensive, and eco-friendly, and could lead to obtaining interesting magnetic properties. The biological applications of these NSFs were examined. The impact of NSFs with and without cardamom and moringa extracts on human colorectal carcinoma cells (HCT-116) and cervical cancer cells (HeLa) was assessed by checking cell viability using 3-[4,5-dimethylthiazole-2-yl]-2,5-diphenyltetrazolium bromide (MTT) and 4′,6-diamidino-2-phenylindole (DAPI) staining methods. The treatments of NSFs with and without cardamom and moringa extracts decreased cancer cell viability. We calculated the inhibitory concentration (IC50) values for NSFs with and without cardamom and moringa extracts. The treatment of NSFs with and without cardamom and moringa extracts on HCT-116 cells and HeLa cells induced a significant decrease in cancer viability, as revealed by MTT assay. The treatment of NSFs with and without cardamom and moringa extracts caused a noteworthy decrease in colon cancer cells as the number of DAPI stained cells was found to be less in the treated cells. The evaluation of the anti-staphylococcal activity of NSFs with and without cardamom and moringa extracts via the colony-forming unit (CFU) method showed growth inhibition ofS. aureus. It was observed that the nanoparticles synthesized via green synthesis had a marked cell count reduction, proving the microbial toxicity of nanoparticles toS. aureus.
Unusual dynamic susceptibility arising from soft ferromagnetic domains in MnBi8Te13 and Sb-doped MnBi

2n

Te

3n+1

(n = 2, 3)
Authors: Hu Chaowei , Tanatar Makariy A , Prozorov Ruslan , Ni Ni 
Published: October 2021

Abstract
MnBi

2
n

Te

3
n
+
1

(MBT) is the first intrinsic magnetic topological insulator and is promising to host emergent phenomena such as quantum anomalous Hall effect. They can be made ferromagnetic by having

n

⩾

4

or with Sb doping. We studied the magnetic dynamics in a few selected ferromagnetic (FM) MBT compounds, including MnBi8Te13 and Sb doped MnBi

2
n

Te

3
n
+
1

(

n
=
2
,
3
)

using AC susceptibility and magneto-optical imaging. Slow relaxation behavior is observed in all three compounds, suggesting its universality among FM MBT. We attribute the origin of the relaxation behavior to the irreversible domain movements since they only appear below the saturation fields when ferromagnetic domains form. The very soft ferromagnetic domain nature is revealed by the low-field fine-structured domains and high-field sea-urchin-shaped remanent-state domains imaged via our magneto-optical measurements. Finally, we ascribe the rare ‘double-peak’ behavior observed in the AC susceptibility under small DC bias fields to the very soft ferromagnetic domain formations.
Unveiling the formation and control of unique swirling discharge pattern in helium plasma candle device
Authors: Abdelaziz Ayman A , Teramoto Yoshiyuki , Kim Hyun-Ha 
Published: October 2021

Abstract
The generation of a large cold plasma jet while maintaining the reproducibility and homogeneity of the discharge is one of the major challenges encountered by the plasma community to efficiently apply this technology in the industry. Here, we report on the discharge in a recently developed device called the plasma candle (PC), wherein a stable plasma jet with a diameter of 20 mm can be generated at atmospheric pressure and temperature. Unlike the discharge morphology previously reported for conventional plasma jet devices, the unique configuration of PC device resulted in distinctive discharge patterns. Homogenous discharge was generated in the electrode gap and followed by a swirling discharge toward the tube nozzle. Fast photography and electrical measurements revealed that filament propagation and its morphology form the visually observable swirl discharge. Detailed analysis indicated that residual helium metastable species (Hem) and their penning ionization play an essential role in the discharge mode and its transition, which was verified by changing the feeding gas and the frequency of the applied voltage. For instance, it is found that only filamentary discharge was observed along the entire tube at frequencies less than 3 kHz, at which the time between consecutive discharges was long enough for Hem decay. Consequently, the homogenous discharge pattern was recovered by increasing the pre-ionization levels by adding a trace of impurities (N2, O2 or H2O) to the feeding gas. However, the level of these impurities must be carefully adjusted to achieve a homogenous discharge without negatively affecting the jet properties. A trivial change in the gas impurity, in the range of adsorption and desorption of water from the gas tubing, is sufficient to cause a noticeable change and instability in the discharge mode. This finding is critical to predicting the production of reactive species and plasma-surface interaction for different applications.
Electron and hole capture processes in Cu-doped glass exhibiting radiophotoluminescence
Authors: Hashikawa Ryo , Takada Yuya , Nishi Yusaku , Kinomura Atsushi , Saito Takeshi , Okada Arifumi , Wakasugi Takashi , Kadono Kohei 
Published: October 2021

Abstract
Radiophotoluminescence (RPL) is a radiation effect, and materials exhibiting RPL can be used in dosimeters. In this study, we observed remarkable RPL in Cu-doped aluminoborosilicate and silica glasses upon their exposure to 60Co γ-rays. The RPL intensity increased proportionally with the irradiation dose up to several hundreds of grays and then saturated beyond a certain dose level. An equation was derived theoretically to express the relationship between the RPL intensity and irradiation dose based on the RPL mechanism, in which copper ions, Cu2+ and Cu+, capture electrons and holes, generated by the irradiation, respectively, resulting in a change in the valence. The equation fitted well with the experimental results, providing two parameters for the equation. These parameters are associated with the saturation dose level and sensitivity, which are important for the application of materials to dosimeters. These parameters were discussed based on electron and hole capture processes in the RPL mechanism.