bluuebunny/crossref_metadata_2025_split huggingface dataset:
Strangeness in the Looking Glass: A Tutorial for Interrogating Ideologies of “Good” Languaging in Children's Picture Books
Authors: Brea-Spahn María Rosa , Soto-Boykin Xigrid , Pérez Kat , Pérez Shakira M. , Salguero Pérez Nemesis , Anandhakrishnan Mridula , Saldivar Garcia Erica 
Published: January 2025

Purpose:
In recent years, the importance of embedding children's racial, cultural, and ability identities has received greater attention in the field of speech-language therapy. Picture books have become one common way of embedding children's identities in therapy sessions. Picture books are a powerful tool for sharing communities' identities, histories, triumphs, and joy. Yet, existing discussions about picture books have seldom included the interrogation of their language ideologies. Ideologies of “good” languaging are important to consider when selecting picture books. Even when books are written and illustrated by community insiders that come from minoritized backgrounds, they can still reify standardized views of languaging that reify various forms of oppression including linguistic racism, ableism (including audism and oralism), xenophobia, and so forth, and these ideas directly impact how youth see themselves or their subjectivities. In this tutorial, we model the application of an inquiry tool to interrogate ideologies of “good” languaging in children's picture books and how to have critical conversations about these language ideologies in ways that are just, affirming, and linguistically sustaining for children who are racially and linguistically minoritized. Three children's books were selected to exemplify the analysis across four dimensions: context, power relations, assumptions and beliefs, and impact on subjectivities.

Conclusions:
To resist the harm imposed on evolving subjectivities in youth, it is of essence that children's literature be analyzed beyond representation of demographics and the positionalities of authors. The hope is that through this work, preservice and in-service teachers and speech-language pathologists co-create learning communities and engage in conversations about how their materials uphold these ideologies or dogmas of “good” languaging in an effort to provide humanizing and affirming learning spaces for children.
Design and analysis of a novel asymmetric PM‐assisted synchronous reluctance motor used for electric vehicles
Authors: Wang Weinan , Wang Shuo , Zhu Liangkuan , Zhao Xiaokun , Wei Jian 
Published: January 2025

AbstractThis paper proposes a novel asymmetric permanent magnet assisted synchronous reluctance motor (APMA‐SynRM) used for electric vehicles (EVs), which adopts the magnetic isolation flux barrier to enhance the effect of magnetic field shifting. Firstly, the magnetic field shifting principle and magnetic circuit model of APMA‐SynRM are analysed. Then, a new design method of APMA‐SynRM that makes the reluctance torque and permanent magnet (PM) torque reach the peak value at same current angle is proposed. According to the design method's analysis, the condition that the structural and magnetic property parameters of APMA‐SynRM should meet is obtained, which provides significant reference for the APMA‐SynRM's design. After that, an APMA‐SynRM scheme is designed to verify the design method's accuracy and effectiveness. Finally, the electromagnetic and mechanical strength performances of APMA‐SynRM and corresponding permanent magnet assisted synchronous reluctance motor (PMA‐SynRM) are studied, which demonstrates the feasibility of APMA‐SynRM's application in EVs.
Multi‐time‐scale scheduling of integrated port logistics‐energy system considering piecewise linearization of high‐order equations
Authors: Li Liqin , Shi Qingxin , Wang Zhuorong , Zhang Shuai , Jia Dongxue , Liu Wenxia 
Published: January 2025

AbstractPort area usually possesses a high percentage of fluctuating energy sources (wind turbine and photovoltaic systems and fluctuating load. How to rationally dispatch port resources and arrange equipment operation plan is crucial in the development of environmentally‐friendly ports. Producing hydrogen using renewable energy sources is an important technical method to promote the utilization of renewable energy. In order to balance the high electricity consumption and unstable output of renewable energy sources, previous studies have proposed a scheduling model for the port logistics‐energy integrated system. However, inaccurate modelling of hydrogen storage devices has impacted the security of system operation. Considering the temperature and pressure of hydrogen in the high‐pressure hydrogen storage tank, this paper established the multi‐time scale scheduling model of the port logistics‐energy integrated system. The excessive electrical energy is stored using electrolytic water hydrogen production technology. On this basis, the electricity and hydrogen load demands are coordinated. Then, a piecewise‐linearization method is proposed to efficiently solve the high‐order nonlinearity temperature‐pressure equation. Finally, the feasibility and accuracy of the proposed method is verified by testing on a standard port integrated energy system.
Educación, aculturación y actitudes latinas hacia la inmigración
Authors: Kehrberg Jason E. , Cepek Emma A. , Trudo Sydni L. , Yonts Keygan T. 
Published: January 2025

Abstract
We study the influence of education on Latines’ immigration attitudes across levels of acculturation. Previous research argues that education shapes immigration attitudes by reducing the perceived threat. These studies use combined samples with respondents from multiple ethnic and racial groups, including groups who share cultural similarities with immigrant groups. Using data from a national survey, we conducted regression analysis examining the relationship between education and immigration attitudes for Latines, generating important findings. First, analysis mirrors previous scholarly findings in that education does not impact Latine attitudes, even when generational status is included in the statistical models. Second, the addition of an interaction between generational status and education supports the hypothesis that education’s impact on immigration attitudes varies across acculturation levels. Third, further analysis shows that education levels matter for fourth-generation Latines but not for earlier generations. Our tests provide support for identity theories on the influence of education.
Fabrication of periodically poled lithium niobate waveguides for broadband nonlinear photonics
Authors: Ayhan Furkan , Ludwig Markus , Herr Tobias , Brasch Victor , Villanueva Luis Guillermo 
Published: January 2025

Nonlinear optics is the precursor for many of the modern-day applications of photonics, including femtosecond pulse synthesis, precision spectroscopy, and metrology. In the last decade, nanophotonic waveguides have not only boosted the efficiencies of nonlinear effects but also unlocked new degrees of freedom in the design process and enabled the monolithic integration of multiple nonlinear devices. Now, the advent of thin-film variants of platforms with a strong second-order nonlinearity such as lithium niobate-on-insulator (LNOI) enables entirely new applications while further improving efficiency for the existing ones. However, suitable fabrication processes are needed to exploit the full potential of these new platforms. Here, we introduce a process for fabricating high-confinement lithium niobate waveguides with periodic poling. Our waveguide designs enable both third-order nonlinear χ(3) broadening and sum frequency generation (SFG) up to the fourth harmonic through a quasi-phase-matched χ(2) section. In supercontinuum (SC) experiments, our devices produce multi-octave SC spectra when pumped with an 80 fs mode-locked laser at 1560 nm.
Tip–tilt-decoupled vertical comb-drive micromirror based on a D-SOI wafer and interlayer TSV
Authors: Xia Yuhu , Ling Biyun , Wang Xiaoyue , Wu Yaming 
Published: January 2025

Abstract
Mechanical cross-axis coupling in biaxial scanning increases calibration workload and affects the performance of tip–tilt (TT) micromirror. The integration of gimbal and inner-axis vertical comb-drive (VCD) actuators is a viable design for TT-decoupled micromirrors. The key to developing such a structure is guaranteeing that the integrated inner-axis VCD actuator is insulated from the gimbal and is electrically connected to the substrate while minimizing fabrication difficulty. For this purpose, this paper introduces a double-silicon-on-insulator (D-SOI) wafer with two mutually-insulated device layers into the development of TT-decoupled VCD micromirrors. For both tip and tilt scanning modes, two VC sets in each VCD actuator are arranged on different device layers of the D-SOI wafer. Gimbal, reflective mirrors and springs are fabricated on the identical device layer of the D-SOI wafer, forming an integrated structure together with an inner-axis VCD actuator. In addition, polysilicon-based interlayer through-silicon-vias and surface metal redistribution layers are employed to electrically connect all the driving signals to the wiring substrate. The D-SOI wafer is bonded to the wiring substrate using thermocompression bonding processing before removing the D-SOI handle layer and structure release. Based on the proposed structure and micromachining process, this paper fabricates a 3 × 3 micromirror array (MMA), in which each pixel is 951 × 1096 µm2 in footprint and has a fill factor of 50

%

. Testing results of the fabricated MMA exhibit a quasi-static mechanical tilt/tip angle of 1.266/1.436 ∘ at 35/35 V, and an RMS reflective mirror roughness of 5.323 nm.
Ion momentum mapping in photodissociation and Coulomb explosion events using ion time-of-flight analyzers
Authors: Kukk Edwin 
Published: January 2025

Abstract
Modern light sources such as free electron lasers allow for tracking photoinduced events with an unprecedented accuracy. Ion spectroscopy is a particularly useful tool, revealing, e.g., momentum correlations in dissociation and Coulomb explosion patterns. Determining ion momentae and their relationship with the highest achievable accuracy is therefore very valuable. Here, we develop a systematic approach of accurate ion momentum determination in Wiley-McLaren type ion time-of-flight spectrometers taking into account also field penetration effects. The developed analytical formulae at various level of approximation are compared with ray tracing simulations and the effects are also illustrated on an experimental example.
Geometric meaning of high-order exceptional points in non-Hermitian Su–Schrieffer–Heeger model
Authors: Liu Tong , Li Jing-Quan , Zhang Zhi-Xu , Zhong Li-Nan , Cui Wen-Xue , Wang Hong-Fu 
Published: January 2025

Abstract
We investigate the geometric meaning of high-order exceptional points (EPs) in non-Hermitian Su–Schrieffer–Heeger model. High-order EPs are highly associated with the non-Bloch parity-time (

PT

) symmetry, a novel type of

PT

symmetry caused by the non-Hermitian skin effect (NHSE). The bulk states arising from the NHSE possess higher-order EPs at the critical point of the non-Bloch

PT

phase transition. We also analyze the phase transition using the ratio of complex eigenenergies and employ saddle point theory to further clarify the geometric significance of higher-order EPs and non-Bloch

PT

phase transition. Finally, we generally prove that in an extended two-band non-Hermitian system, the values of generalized Brillouin zone at high-order EPs are zero or infinity. This work helps us further understand high-order EPs in nonreciprocal topological systems.
Micromagnetic simulations of magnon–magnon coupling in synthetic antiferromagnets with tilted magnetic anisotropy
Authors: Chen Xing , Zheng Cuixiu , Xu Haoxiang , Liu Yaowen 
Published: January 2025

Abstract
Hybrid magnonics has attracted extensive attention for its potential applications in quantum information processing, especially following the discovery of strong coupling in magnon–magnon hybrid systems. In this paper, we studied the coupling phenomena between the left-handed (LH) and right-handed (RH) magnon modes in synthetic antiferromagnets with a tilted perpendicular magnetic anisotropy (PMA). By tilting the PMA at a certain angle from the film normal, we achieved strong magnon–magnon coupling without the need for an external magnetic field. The resulting hybrid eigenmodes exhibit characteristics of a linear combination of pure LH and RH modes. In addition, micromagnetic simulations revealed in detail the gradual change of hybrid resonance modes from approximately linear to elliptic, and eventually to circular polarization as the coupling strength gradually decreases. We also examined the effects of an applied magnetic field on the coupling strength and mechanism between the two eigenmodes. These findings provide valuable insights into magnetic dynamics within hybrid magnonic systems for spintronic applications involving magnon polarization.
Strain dependent properties of the Bi2Sr2CaCu2O8 superconductor: an ab initio study
Authors: Yelpo Carla , Favre Sofía , Ariosa Daniel , Faccio Ricardo 
Published: January 2025

Abstract

Ab initio calculations were performed to investigate the effects of strain on the structural, electronic, and vibrational properties of the Bi2Sr2CaCu2O8 (Bi-2212) compound. To accurately represent the Bi-2212 ground state, a modulation correction was applied, generating a distorted structure with lower symmetry that better represents the incommensurate superstructure observed in this compound. Phonon spectra and electronic properties were calculated under various levels of c-axis strain, ranging from −2.0% to +2.0%. For the electronic properties, minor changes were observed in the electronic density of states and band structure. However, trends could be identified by analyzing the fine features of the band structure through a tight-binding model. The most significant changes were observed in the vibrational properties, where different trends emerged for the various Raman-active modes. The changes observed in the vibrational and electronic properties can be explained by examining the distances and overlap populations of the relevant bonds, as well as the reduced mass of certain modes. This work can serve as an input for analyzing experimental measurements, helping to distinguish structural effects from others.
Influence of aqueous KMnO4 concentration on the structural and optical properties of reduced-graphene oxide nanosheets for enhanced electrical conductivity
Authors: Ali Sahar Mohammed , Hussein Emad Hameed , Dakhil Osama Abdul Azeez 
Published: January 2025

Abstract
It is reputed that potassium permanganate (KMnO4) powder is a very crucial material used as an oxidant for the preparation of reduced-graphene oxide (rGO) based on Hummer’s method. However, since the oxidant molarity is unknown when using the powder, a new work in which a solution-phased KMnO4 with different concentrations of 0.5 M, 1 M, and 1.5 M was introduced to change the structural, morphological, optical, and electrical properties of rGO. Characterization tools confirmed the formation of rGO nanosheets with different energy gaps depending on the concentrations. Hence, as Raman spectra demonstrated, the crystalline qualities of the nanosheets were highly influenced by the concentrations. The change in the morphological and structural properties of rGO led to a high increase the electric conductivity by lowering the oxidant molarity. In contrast, the maximum value of the dielectric constant was observed at the highest concentration. Moreover, a symmetrical tangent loss was observed in the frequencies less than 100 kHz at a molarity of 1 M. Therefore, 1 M oxidant was selected as the optimal concentration for high-conductivity, high-tangent loss rGO nanosheets. Thus, this modification could improve the rGO features, especially the electrical properties for future electronics.
Generalized spin helix states in quantum spin graphs
Authors: Zhang C H , Shi Y B , Song Z 
Published: January 2025

Abstract
In general, the summation of a set of sub-Hamiltonians cannot share a common eigenstate of each one, only if it is an unentangled product state, such as a spin helix state in quantum spin system. Here we present a method, referred to as the building block method (BBM), for constructing possible spin-1/2 XXZ Heisenberg lattice systems possessing spin helix states. We focus on two types of XXZ dimers as basic elements, with a non-Hermitian parity-time (

P
T

) magnetic field and Hermitian Dzyaloshinskii-Moriya interaction (DMI), which share the same degenerate eigenstates. Based on these two building blocks, one can construct a variety of Heisenberg quantum spin systems, which support helix states with zero energy. Furthermore, we show that such systems act as quantum spin graphs since they obey the analogs of Kirchhoff’s laws for sets of spin helix states when the non-Hermitian

P
T

terms cancel each other out. In addition, the dynamic response of the helix states for three types of perturbations is also investigated analytically and numerically. Our findings provide a way to study quantum spin systems on irregular lattices.
The Lunar Gravitational-wave Antenna: mission studies and science case
Authors: Ajith Parameswaran , Seoane Pau Amaro , Sedda Manuel Arca , Arcodia Riccardo , Badaracco Francesca , Banerjee Biswajit , Belgacem Enis , Benetti Giovanni , Benetti Stefano , Bobrick Alexey , Bonforte Alessandro , Bortolas Elisa , Braito Valentina , Branchesi Marica , Burrows Adam , Cappellaro Enrico , Ceca Roberto Della , Chakraborty Chandrachur , Subrahmanya Shreevathsa Chalathadka , Coughlin Michael W. , Covino Stefano , Derdzinski Andrea , Doshi Aayushi , Falanga Maurizio , Foffa Stefano , Franchini Alessia , Frigeri Alessandro , Futaana Yoshifumi , Gerberding Oliver , Gill Kiranjyot , Giovanni Matteo Di , Giudice Ines Francesca , Giustini Margherita , Gläser Philipp , Harms Jan , van Heijningen Joris , Iacovelli Francesco , Kavanagh Bradley J. , Kawamura Taichi , Kenath Arun , Keppler Elisabeth-Adelheid , Kobayashi Chiaki , Komatsu Goro , Korol Valeriya , Krishnendu N.V. , Kumar Prayush , Longo Francesco , Maggiore Michele , Mancarella Michele , Maselli Andrea , Mastrobuono-Battisti Alessandra , Mazzarini Francesco , Melandri Andrea , Melini Daniele , Menina Sabrina , Miniutti Giovanni , Mitra Deeshani , Morán-Fraile Javier , Mukherjee Suvodip , Muttoni Niccolò , Olivieri Marco , Onori Francesca , Papa Maria Alessandra , Patat Ferdinando , Perali Andrea , Piran Tsvi , Piranomonte Silvia , Pol Alberto Roper , Pookkillath Masroor C. , Prasad R. , Prasad Vaishak , Rosa Alessandra De , Chowdhury Sourav Roy , Serafinelli Roberto , Sesana Alberto , Severgnini Paola , Stallone Angela , Tissino Jacopo , Tkalčić Hrvoje , Tomasella Lina , Toscani Martina , Vartanyan David , Vignali Cristian , Zaccarelli Lucia , Zeoli Morgane , Zuccarello Luciano 
Published: January 2025

Abstract
The Lunar Gravitational-wave Antenna (LGWA) is a proposed array of next-generation inertial sensors to monitor the response of the Moon to gravitational waves (GWs). Given the size of the Moon and the expected noise produced by the lunar seismic background, the LGWA would be able to observe GWs from about 1 mHz to 1 Hz. This would make the LGWA the missing link between space-borne detectors like LISA with peak sensitivities around a few millihertz and proposed future terrestrial detectors like Einstein Telescope or Cosmic Explorer. In this article, we provide a first comprehensive analysis of the LGWA science case including its multi-messenger aspects and lunar science with LGWA data. We also describe the scientific analyses of the Moon required to plan the LGWA mission.
Dust collapse and horizon formation in quadratic gravity
Authors: Buoninfante Luca , Filippo Francesco Di , Kolář Ivan , Saueressig Frank 
Published: January 2025

Abstract
Quadratic Gravity supplements the Einstein-Hilbert action by terms quadratic in the spacetime curvature. This leads to a rich phase space of static, compact gravitating objects including the Schwarzschild black hole, wormholes, and naked singularities. For the first time, we study the collapse of a spherically symmetric star with uniform dust density in this setting. We assume that the interior geometry respects the symmetries of the matter configuration, i.e., homogeneity and isotropy, thus it is insensitive to the Weyl-squared term and the interior dynamics is fully determined by R and R
2.
As our main result, we find that the collapse leads to the formation of a horizon, implying that the endpoint of a uniform dust collapse with a homogeneous and isotropic interior is not a horizonless spacetime. We also show that the curvature-squared contribution is responsible for making the collapse into a singularity faster than the standard Oppenheimer-Snyder scenario. Furthermore, the junction conditions connecting spacetime inside and outside the matter distribution are found to be significantly more constraining than their counterparts in General Relativity and we discuss key properties of any exterior solution matching to the spacetime inside the collapsing star. Finally, we comment on the potentially non-generic behavior entailed by our assumptions.
ITER NBI operational window and power availability constraints due to shine-through losses
Authors: Vincenzi P. , Schneider M. , Veltri P. , Artaud J.F. , Loarte A. , Nicolici S. , Poggi C. , Polevoi A.R. , Snicker A. 
Published: January 2025

Abstract
This paper explores the operational boundaries and power availability of the neutral beam injection (NBI) system in ITER, with a specific focus on shine-through (ST) loss prevention. ST, a phenomenon where part of the injected neutral beam remains un-ionized in the plasma and directly impacts the first wall components, poses a significant risk to the lifetime of ITER’s plasma-facing components (PFCs). The operational window for NBI is consequently constrained by these losses, which are influenced by factors such as plasma density, beam energy, and injection geometry. Leveraging advanced numerical simulations, we investigate these dependencies across various ITER plasma scenarios, particularly for the DT-1 phase, which will mark the first NBI operations. In light of recent ITER blanket design changes, our analysis refines previous estimates of the maximum acceptable ST power on PFCs. We then present a new heuristic formula which permits the calculation of the ST fraction and the minimum plasma density that permits ITER NBI operations as a function of global variables. This allows for establishing operational limits for Hydrogen and Deuterium NBI in Hydrogen, Deuterium, and Deuterium–Tritium plasmas. Additionally, we compare commonly used beam ionisation codes for ITER and tokamak simulations, evaluating their reliability in the investigated parameter space. The findings of this study are crucial for ensuring the efficient operation of the NBI system during ITER’s experimental phases. They define the conditions under which beam power can be fully utilised without compromising operational lifetime, thereby informing future plasma operation plans and contributing to the success of ITER’s scientific objectives.