bluuebunny/crossref_metadata_2025_split huggingface dataset:
Ruthenium(II)-Catalyzed C–H Allylation of N,N-Dialkylthiobenzamides with Allyl Methyl Carbonate by Sulfur Coordination
Authors: Zhao Liang , Wang Runbao , Jin Kun , Zhang Rong , Li Yaming , Duan Chunying 
Published: September 2024

AbstractThis report describes a Ru(II)-catalyzed C–H allylation of N,N-dialkylthiobenzamides with allyl methyl carbonate. The reaction is carried out using [RuCl2(p-cymene)]2 in the presence of Cu(OAc)2 and Ag2O. This method represents the first example of a Ru-catalyzed C–H allylation directed by a sulfur-containing group. As a further advantage, the method is performed in sustainable and ecofriendly MeCN as the solvent.
Rural women entrepreneurship: when femininity compensates for institutional hurdles
Authors: Karami Masoud , Karimi Yousef Mohammad , Akbari Mohsen , Gnoth Juergen 
Published: September 2024

AbstractThe present study investigates the influence of femininity as a cultural value on overcoming institutional hurdles and facilitating entrepreneurial opportunity development by rural women in Iran. We conducted 15 in-depth interviews with rural women entrepreneurs over a year to identify the process of rural women entrepreneurship. Our findings show that when regulative institutions fail to accomplish the expected role in support of rural women entrepreneurship, instrumentalizing the femininity of Iranian culture can overcome the hurdle. We contribute to rural women entrepreneurship by theorizing the influence of femininity as an alternative institutional arrangement in overcoming regulative institutional hurdles and the social construction of new opportunities. We also contribute to theory by further characterizing femininity in Hofstede’s work and suggesting a connection between Hofstede’s macro-level model and micro-level analysis. We frame research results and justify interpretations by providing contextual details to explain how femininity works in a specific Asian cultural context when building women entrepreneurship. We furthermore provide practical implications for policymakers.
Upgrade of DIII-D radial interferometer–polarimeter for large bandwidth, low noise, and toroidal mode number measurements
Authors: Prabhudesai G. , Chen J. , Brower D. L. , Finkenthal D. 
Published: September 2024

Near ion-cyclotron frequency (fci) fluctuations, such as those originating from Global and Compressional Alfvén Eigenmodes (GAEs/CAEs), are expected to be present in future fusion reactors but are not well understood due to the limited availability of core measurements in present-day tokamaks. The measurement bandwidth of the Radial Interferometer–Polarimeter (RIP) diagnostic has been upgraded from 1 to 5 MHz to detect these fluctuations in DIII-D. RIP adopts the three-wave technique for simultaneous polarimetric and interferometric measurements. Solid-state microwave sources operating at 650 GHz are used as probe beams and provide 5 MHz bandwidth for both polarimetric and interferometric measurements. Bandwidths of related hardware, including mixer amplifier, signal cable, and digital phase demodulator, are increased correspondingly. Measurement noise is minimized by reducing the time delay between reference and probe signals to nanosecond level and employing correlation-based techniques. Using the upgraded diagnostic, CAE/GAE-like bursting fluctuations are observed in neutral-beam heated plasmas with toroidal magnetic field Bφ ≈ 1 T. Current upgrades being undertaken would enable the evaluation of toroidal mode number for these modes. This work opens the possibility of better understanding near ion-cyclotron frequency fluctuations in fusion relevant plasmas.
Does the full configuration interaction method based on quantum phase estimation with Trotter decomposition satisfy the size consistency condition?
Authors: Sugisaki Kenji 
Published: September 2024

Electronic structure calculations of atoms and molecules are considered to be a promising application for quantum computers. Two key algorithms, the quantum phase estimation (QPE) and the variational quantum eigensolver (VQE), have been extensively studied. The condition that the energy of a dimer consisting of two monomers separated by a large distance should be equal to twice the energy of a monomer, known as size consistency, is essential in quantum chemical calculations. Recently, we reported that the size consistency condition can be violated by Trotterization in the unitary coupled cluster singles and doubles ansatz in the VQE when employing molecular orbitals delocalized to the dimer [Sugisaki et al., J. Comput. Chem. 45, 2204 (2024)]. It is well known that the full configuration interaction (full-CI) energy is invariant to arbitrary rotations of molecular orbitals, and therefore, the QPE-based full-CI should theoretically satisfy the size consistency. However, Trotterization of the time evolution operator can break the size consistency conditions. In this work, we investigated whether size consistency can be maintained with Trotterization of the time evolution operator in QPE-based full-CI calculations. Our numerical simulations revealed that size consistency in the QPE-based full-CI is not automatically violated by using molecular orbitals delocalized to the dimer, but employing an appropriate Trotter decomposition condition is crucial to maintain size consistency. We also report on the acceleration of QPE simulations through the sequential addition of ancillary qubits.
Parallel conducting filaments in resistive switching ZnO thin films
Authors: Liu Tai-Min , Wu Zong-Wei , Chien Ting-An , Yang Pin-Qian , Hsu Hua-Shu , Lo Fang-Yuh 
Published: September 2024

This study examines resistive switching in a Cu/ZnO/ITO structure, uncovering an anomalous phenomenon that provides insights into the mechanisms of parallel conducting filaments in ZnO thin films. The current–voltage (I–V) characteristics exhibit a sharp switch at a positive threshold voltage around 2 V, transitioning from a high resistance pristine state to a low resistance state, interpreted as the formation of a Cu filament via electrochemical metallization. However, after this forming process, the device remains in the low resistance state and cannot reset to a high resistance state in either polarity of the applied voltage, suggesting the presence of a strong, unbreakable Cu filament after the forming process. What makes this phenomenon anomalous is the observed weak bipolar resistive switching in the cycles following the forming cycle, despite the presence of the Cu filament. The I–V characteristics of forward- and reverse-bias sweeps suggest that the weak bipolar resistive switching results from an additional filament formed in parallel with the existing unbreakable Cu filament. Using a parallel conducting filaments model, the resistivity of this additional filament is calculated to be ∼10−7–10−5 Ω m, indicating that this filament is likely generated by oxygen vacancies rather than metal atoms in the ZnO films.
Graded resources for learning and teaching foreign languages
Authors: François Thomas , Gala Núria 
Published: September 2024

Abstract
Innovative resources for teaching vocabulary have emerged during the last decades, among which the so-called
‘graded resources’, i.e. lexicons or inventories where linguistic forms have been associated with a difficulty level, having in
mind a target reader. The idea of ‘grading’ in Education is not new and has evolved over time: vocabulary or text scales (grades)
have been approached as an educational tool with the means available at each period of time. In this survey, our aim is to show
how current approaches of graded resources for foreign language learning are rooted in the tradition of building frequency lists
for education. We then synthesize the body of work that has been undertaken to design graduated resources, highlighting the
different methodologies applied as well as existing resources.
Far-right discourse in Brazil
Authors: Oliveira Ana Larissa , Drinóczi Tímea , Miranda Monique Vieira 
Published: September 2024

Abstract
Although it is almost common sense in Brazil that far-right leaders typically deploy impolite language as part of their rhetoric, the issue is still understudied and lacks empirical evidence. We explore the trendiest hashtags and their accompanying posts used as replies to the Brazilian Supreme Court’s official Twitter/X account between October 2021 and October 2022, which covers a year before the 2022 presidential election. After analyzing 414,652 posts, our results showed that shameless impolite language was deployed in 94.9% of the hashtags. The data confirms that online verbal attacks on the judiciary were a common posting practice on Twitter/X. The strategy’s main element has been combining impolite language with lies and manipulation to defame perceived opponents and attract followers.
The effects of textual enhancement on young learners’ attention and
vocabulary acquisition through captioned cartoons
Authors: Finger-Bou Rebeca , Muñoz Carmen 
Published: September 2024

Abstract
This study aimed to analyze the effects of textual
enhancement of captions on vocabulary acquisition by 17 L1-Spanish/Catalan
primary school learners of English in fifth grade. Participants watched 11
episodes of a children’s television series. They were divided into two
groups: one watched the videos with regular captions, and one with enhanced
captions, where target words were bolded and highlighted in yellow.
Vocabulary gains were assessed through pre- and post-tests that tapped into
form recall and form recognition. Results showed higher learning in the
enhanced captions group, particularly in terms of form recognition.
Additionally, an eye-tracking analysis showed that the enhanced-captions
group had longer fixation durations initially, but the difference
disappeared by the end of the intervention.
Cooling high heat flux with flow boiling in 2D-structured radial microchannel heat sink
Authors: Huang Haoxiang , Yan Zhe , Pan Zhenhai 
Published: September 2024

Abstract
This work proposes a novel two-dimensional-structured radial microchannel heat sink (RMHS) to effectively dissipate high heat flux, which owns easily manufactured characteristics. The RMHS is formed by orderly arranged pin fins involving two branching microchannel structures. The fluid flows into the RMHS through the central inlet and then experiences the continuous split and mixing imposed by the branching structures. The generated vapor bubble experiences a frequent breakup and coalescence process with the boiling phenomenon, among which the thin liquid film thickness can be triggered. The RMHS is fabricated using the silicon etching technique. A series of visualization experiments are conducted to test the performance of RMHS and reveal the related physical mechanisms. The evolution of bubble dynamics within the RMHS is recorded with a high-speed photographic system. The features mentioned above of RMHS confer excellent boiling heat transfer performance. At 600 ml min−1 volumetric flow rate, the maximum dissipated heat flux reaches 1035 W cm−2 with an area of 1 cm2. The present study is hoped to provide valuable insights into designing a two-phase microchannel heat sink for the thermal management of electronic devices.
Surface loss probability of atomic oxygen on silica under atmospheric-pressure CO2
Authors: Ono Ryo , Kimata Yuto 
Published: September 2024

Abstract
The surface loss probability γ
O of atomic oxygen was measured for SiO2 in atmospheric-pressure CO2 and Ar/CO2(3.05%) mixture at 300 K. O atoms were produced via the photolysis of CO2 using a 172 nm Xe2 excimer lamp. After irradiation by Xe2 lamp, the working gas flowed through a quartz tube, causing O atoms to be lost on its inner surface. By measuring the density of O atoms at the end of the tube for different tube lengths, we obtained the value of γ
O on the inner surface of the tube. The measured value was

5.5
×

10

−
4

±
50
%

, which falls within the range of referred values of γ
O (

1
×

10

−
5

to

1
×

10

−
3

) at 4 to 1300 Pa measured using low-pressure O2 plasmas. Despite the 2 to 5 orders of magnitude pressure difference, no significant difference in γ
O was obtained. The potential influence of the difference in background gas (CO2 and O2) on the value of γ
O was also considered.
The interplay between optoelectronic and magnetic properties in Co-doped Cu2ZnSnS4 for next-generation solar cell devices
Authors: Oktafiani Agustina , Nugroho Fauzan Wahyu Adi , Salsabila Zahra , Sidiq David Hadid , Taufiq Ahmad , Amrillah Tahta 
Published: September 2024

Abstract
A search for next-generation solar cell devices to massively actualize renewable energy is being exponentially conducted. It includes the development of Cu2ZnSnS4 (CZTS)-based solar cells, which are known as cost-effective and highly stable solar cell devices. In this present research, we develop a CZTS solar cell by adding a magnetic degree of freedom using cobalt (Co) doping. We find that the Co doping can induce modulation of the crystalline structure and bandgap of CZTS, which further influences its photovoltaic performance. The increase in the grain size of the CZTS with the addition of Co doping could further induce the reduction of detrimental grain boundaries, which benefits the photovoltaic performance of CZTS-based solar cells. Co doping also generates magnetic behavior in CZTS, which supports its magnetically controlled optoelectronic properties and thus, in turn, enhances the photovoltaic performance. We believe that this study could open up opportunities to obtain next-generation solar cell devices with excellent performances by using magnetic-field induction.
Non-equilibrium thermodynamics in NMR: understanding quadrupolar spin-1 systems
Authors: Mahmud Mohammed , Bassie Yigermal , Bekele Mulugeta 
Published: September 2024

Abstract
In this study, we explore the non-equilibrium thermodynamics of a quantum system, specifically focusing on spin-1 quadrupole nuclei. By employing fundamental principles from quantum mechanics and statistical mechanics, we aim to understand the behavior of the quadrupole spin-1 nuclei when subjected to external perturbations. Our analysis involves the investigation of the system’s dynamic response to non-equilibrium conditions through the manipulation of a work parameter. By treating work as a random variable, we gather data from multiple cycles of finite duration, enabling us to compute the complete distribution of the work generated during this process. Through these finite-time non-equilibrium process data, we are able to determine equilibrium values for important quantities such as the difference in free energy between the initial and final states of the system. Additionally, we explore various properties of the system’s work distribution.
Quantum control of polariton emission in a microcavity-quantum well system under magnetic field
Authors: Urquijo-Rodríguez Andrés F , Gómez Edgar A , A Rodríguez Boris , Vinck-Posada Herbert 
Published: September 2024

Abstract
In this work, a quantum dissipative model is employed to investigate the influence of a perpendicular magnetic field on the photoluminescence (PL) spectrum of a quantum well embedded within a microcavity. This model incorporates both the exact electron–hole interaction within the semiconductor and the light-matter coupling between the fundamental photonic mode and the fermionic particles. The loss and pumping mechanisms are described using the quantum master equation, and the PL spectrum is determined via the quantum regression theorem. Our findings demonstrate that the magnetic field acts as a control mechanism in the polariton emission energy, the emission linewidth and the intensity distribution along the emission line. Finally, it is observed that the magnetic field can redistribute the density matrix occupations leading to modifications in the average number of polaritons in the system.
Simulation and time series analysis of responsive active Brownian particles (rABPs) with memory
Authors: Bailey Maximilian R , Grillo Fabio , Isa Lucio 
Published: September 2024

Abstract
To realise the goals of active matter at the micro- and nano-scale, the next generation of microrobots must be capable of autonomously sensing and responding to their environment to carry out pre-programmed tasks. Memory effects are proposed to have a significant effect on the dynamics of responsive robotic systems, drawing parallels to strategies used in nature across all length-scales. Inspired by the integral feedback control mechanism by which Escherichia coli (E. coli) are proposed to sense their environment, we develop a numerical model for responsive active Brownian particles (rABP) in which the rABPs continuously react to changes in the physical parameters dictated by their local environment. The resulting time series, extracted from their dynamic diffusion coefficients, velocity or from their fluctuating position with time, are then used to classify and characterise their response, leading to the identification of conditional heteroscedasticity in their physics. We then train recurrent neural networks (RNNs) capable of quantitatively describing the responsiveness of rABPs using their 2D trajectories. We believe that our proposed strategy to determine the parameters governing the dynamics of rABPs can be applied to guide the design of microrobots with physical intelligence encoded during their fabrication.
Response functions for electric field induced two-dimensional nonlinear spectroscopy in a Kitaev magnet
Authors: Brenig Wolfram , Krupnitska Olesia 
Published: September 2024

AbstractWe study the dynamical response functions relevant for electric field induced two-dimensional (2D) coherent nonlinear optical spectroscopy in a Kitaev magnet at finite temperature. We show that these response functions are susceptible to both types of fractional quasiparticles of this quantum spin-liquid, i.e. fermions and flux visons. Focusing on the second order response, we find a strong antidiagonal feature in the 2D frequency plane, related to the galvanoelectric effect of the fractional fermions. Perpendicular to the antidiagonal, the width of this feature is set by quasiparticle relaxation rates beyond the bare Kitaev magnet, thereby providing access to single-particle characteristics within a multi-particle continuum. While the 2D spectrum of the response is set by the fermionic quasiparticles and displays Fermi blocking versus temperature, the emergent bond randomness which arises due to thermally populated visons strongly modifies the fermionic spectrum. Therefore also the presence of gauge excitations is manifest in the 2D nonlinear response as the temperature is increased beyond the flux proliferation crossover.
Investigation of Be, Mg, Ti–adsorbed boron-germanene nanoribbons for nano applications
Authors: Ngoc Hoang Van , Thuy Huynh Thi Phuong 
Published: September 2024

Abstract
One-dimensional systems are nanostructures of significant interest in research due to their numerous potential applications. This study focuses on the investigation of one-dimensional boron-germanene nanoribbons (BGeNRs) and BGeNRs doped with Be, Mg, and Ti. Density functional theory combined with the Vienna Ab initio Simulation Package forms the foundation of this research. The electromagnetic and optical properties of these structures are systematically examined. The findings reveal that all the studied structures exhibit metallic behaviour, with differences in their magnetic properties. The magnetic moments of the pristine and Be-doped structures are both zero, whereas the Mg and Ti-doped structures exhibit magnetic moments of 0.012 μ
B and 2.234 μ
B, respectively. Partial density of states (PDOS) analyses highlight the contributions of various elements and the complex multi-orbital hybridization among them. The optical properties are investigated through the real and imaginary parts of the dielectric function, along with the absorption coefficient and electron–hole density. This study indicates potential applications in adsorption sensors, the modulation of system magnetism via adsorption, and information transmission technologies.
Lattice dynamics and vibrational properties of scheelite-type alkali-metal perrhenates
Authors: Maddileti Sathani , Mukherjee Supratik , Muñoz Alfonso , Errandonea Daniel , Kennedy Brendan J , Vaitheeswaran G 
Published: September 2024

Abstract
The present work provides insight into the structural, vibrational, and elastic properties of scheelite-type alkali-metal perrhenates AReO4 (A = Na, K, Rb, and Cs) via first-principles calculations. Sodium, potassium, and rubidium perrhenates are isostructural and crystallize in a tetragonal structure, whereas cesium perrhenate crystallizes in an orthorhombic structure. All the phonon frequencies and their corresponding mode assignments were estimated through the linear response method within density-functional-perturbation theory. The phonon density of states highlights the participation of the oxygen anions and both the A-type and rhenium (Re) cations in the low-frequency range. In contrast, the oxygen and Re atoms make relatively high and moderate contributions to the remaining phonon frequency spectrum. Considerable splitting of the longitudinal and traverse optic modes was observed. Elastic constants and phonon dispersion calculations confirmed the mechanical and dynamic stability of the studied AReO4 compounds. A redshift was observed with the frequency of the phonons following the sequence Na→Cs. The low value calculated for the bulk modulus (ranging from 28.36 GPa to 14.15 GPa) and shear modulus indicates the perrhenates have a low resistance to deformation. The values of these moduli decrease in the order of Na→Cs, which correlates with an increase in an ionic radius of the cation. The response to pressure was found to be anisotropic. This characteristic and the ductile nature of the alkali-metal perrhenates were confirmed through elastic analysis.
Enhancement of tunneling electroresistance in metal/two-dimensional ferroelectric tunnel junctions: route for polarization-modulated interface transport
Authors: He Shiying , Zou Daifeng , Lei Chihou , He Zhijian , Liu Yunya 
Published: September 2024

Abstract
In fabricating ferroelectric tunnel junction (FTJ) devices, it is essential to employ low-resistance metals as electrodes interfacing with two-dimensional (2D) ferroelectric materials. For FTJs with a top contact configuration, two interfaces for charge transport are present, namely the vertical interface between the metal electrode and the 2D ferroelectric material, and the lateral interface between the electrode and the central scattering region. These interfaces significantly influence the tunneling electroresistance (TER) of FTJs. However, there exists a notable deficiency in comprehension concerning the physics of charge transport at the interface. In this work, we explore the interface transport properties in FTJs featuring a top contact configuration between metal and the typical α-In2Se3 monolayer. By employing the non-equilibrium Green’s function method, we observe a TER ratio of

1.15
×

10
5

% for the Pd top contact interfacing with an α-In2Se3 monolayer. The significant TER effect is attributed to polarization-controlled interface transport, which is further elucidated through an analysis of the transport mechanisms influenced by the out-of-plane polarization of α-In2Se3 at the vertical interface and the in-plane polarization at the lateral interface. This investigation of the fundamental physical mechanisms of polarization-controlled interface transport demonstrates significant potential for enhancing non-volatile memory devices.