bluuebunny/crossref_metadata_2025 huggingface dataset:
The Epidemiology of Diverticulitis
Authors: Neylan Christopher J. , Kim Alyson , Amy Maya , Hernandez Paul T.
Published: October 2024

Diverticular disease consists of diverticulosis and diverticulitis. Diverticulosis is commonly encountered, and approximately 4% of patients with diverticulosis will progress to develop diverticulitis, which represents a significant health care burden in the United States. Diverticular disease has an increasing incidence both in the United States and globally as important risk factors, including obesity, are becoming more prevalent. The pathophysiology of diverticular disease remains incompletely understood, although geographic and population-based differences in its prevalence and anatomic distribution have generated several hypotheses as to the impact of genetic and environmental factors on development and disease progression. Uncomplicated diverticulitis has had a low mortality rate for the last several decades, but in-hospital mortality approaches 7% for patients with complicated diverticulitis who require emergent surgery. For patients that develop diverticulitis, recent population-based data have led to an improved understanding of which patients will suffer recurrent episodes. This knowledge has facilitated informed discussions with patients and has changed practice in terms of elective surgery.
Hydrodynamic simulation of laser ablation with electronic entropy effects included
Authors: Watanabe Shuto , Akashi Ryosuke , Ishikawa Takahiro , Tanaka Yuta , Tsuneyuki Shinji
Published: October 2024

In this paper, we present a methodology of laser ablation simulation including electronic entropy effects. Ablation by ultrashort laser pulses is suitable for micromachining because of its small thermal damage. To further enhance its effectiveness, it is crucial to explore both theoretically and experimentally the desirable conditions for processing. The density functional theory calculations predict that hot electrons make crystalline lattice thermodynamically unstable at electronic temperature roughly above 20 000 K due to the electronic entropy-driven mechanism. In our simulations, equations combining hydrodynamic equations and the two-temperature model are modeled and are numerically solved, where the electronic entropy effects are included as the electronic temperature-dependent latent heat, boiling point, and melting point. For metal targets, Al and Cu, the calculated ablation rates for 100 fs laser pulses agree with the experimental one at laser fluences up to 10 J/cm2. The heat-affected zone (HAZ) is numerically evaluated from the thickness of the molten layer. Short pulses produce a high ablation rate and small HAZ because of the suppression of diffusion of the deposited pulse energy. Electronic entropy effects make a clear difference between 100 fs and 10 ps pulses. The calculation method presented in this paper serves as a useful tool for exploring nonequilibrium between electrons and ions in the equation of states for metals such as Al and Cu.
PyCI: A Python-scriptable library for arbitrary determinant CI
Authors: Richer Michelle , Sánchez-Díaz Gabriela , Martínez-González Marco , Chuiko Valerii , Kim Taewon David , Tehrani Alireza , Wang Shuoyang , Gaikwad Pratiksha B. , de Moura Carlos E. V. , Masschelein Cassandra , Miranda-Quintana Ramón Alain , Gerolin Augusto , Heidar-Zadeh Farnaz , Ayers Paul W.
Published: October 2024

PyCI is a free and open-source Python library for setting up and running arbitrary determinant-driven configuration interaction (CI) computations, as well as their generalizations to cases where the coefficients of the determinant are nonlinear functions of optimizable parameters. PyCI also includes functionality for computing the residual correlation energy, along with the ability to compute spin-polarized one- and two-electron (transition) reduced density matrices. PyCI was originally intended to replace the ab initio quantum chemistry functionality in the HORTON library but emerged as a standalone research tool, primarily intended to aid in method development, while maintaining high performance so that it is suitable for practical calculations. To this end, PyCI is written in Python, adopting principles of modern software development, including comprehensive documentation, extensive testing, continuous integration/delivery protocols, and package management. Computationally intensive steps, notably operations related to generating Slater determinants and computing their expectation values, are delegated to low-level C++ code. This article marks the official release of the PyCI library, showcasing its functionality and scope.
The influence of laser energy on deuterium emission characteristics from a Zircaloy-4 plasma
Authors: Shaik A. K. , Polek M. P. , Kautz E. J. , Casella A. M. , Senor D. J. , Harilal S. S.
Published: October 2024

Laser-produced plasma coupled with optical emission spectroscopy (OES) is a promising technique for detecting certain isotopes, with unique capabilities such as standoff and rapid detection and minimal to no sample preparation requirements. The key figure-of-merit for isotopic analysis using optical spectroscopy tools is the linewidth relative to the isotope shift. Although the isotopes of hydrogen (1H, 2H, and 3H) possess large isotopic shifts (1H–2H ≈ 180 pm, 1H–3H ≈ 240 pm), being a light element, the H transitions are susceptible to various broadening mechanisms in the plasma environment. One of the critical parameters that influence the linewidth of a transition in an LPP is the incident laser energy. In the present study, we evaluated the role of laser energy on plume expansion dynamics, deuterium emission intensity, and linewidth in a nanosecond laser-produced Zircaloy-4 plasma. The changes in 2Hα emission intensity and linewidth were investigated for varying laser fluence and time after plasma onset. Spatially resolved and spatially integrated OES were performed and compared to investigate the emission spectral features and linewidth of 2Hα. Monochromatic two-dimensional time-resolved imaging was also performed to understand the morphology of the deuterium and protium emission relative to all species in the plume. Our results showed that 1Hα and 2Hα emissions predominantly occur closer to the target. Measurements of 2Hα linewidth approached similar values at later times of plasma evolution regardless of the laser energy. The linewidths of the 2Hα transition showed insignificant differences between spatially resolved and spatially integrated measurements.
Continuous solvothermal synthesis of copper nanoparticles in supercritical ethanol
Authors: Sun Panpan , Sun Chuanjiang , Lv Zhaobin , Wang Shuzhong
Published: October 2024

Continuous supercritical solvothermal synthesis of copper nanoparticles is of great interest due to its enormous potential in energy sustainability. In this study, supercritical methanol and ethanol were used as reaction solvents, copper nitrate [Cu(NO3)2] and copper acetate [Cu(CH3COO)2] were used as representative inorganic and organic copper precursors. Finally, macromolecular organic polymers [polyvinylpyrrolidone, PVP, (C6H9NO)n] and long-chain fatty acids [decanoic acid, CH3(CH2)8COOH] were used as ligands to study cooper nanocrystals' formation mechanism. The results showed that a higher conversion rate of Cu2+ and smaller crystals were obtained when supercritical ethanol acted as solvent due to the variation of hydrogen bonding degree. Compared with NO3−, more thorough conversion and faster nucleation can be realized when CH3COO− acts as precursor anion. These arise from the diverse chemical bonding degree and functional group. Moreover, with the addition of macromolecular PVP, the dispersibility of obtained copper nanoparticles was significantly better than with the reaction of decanoic acid addition. Moreover, with increase in the PVP concentration, the morphology of the product became more and more regular, the distribution became more and more even, which was caused by inconsistent growth rates of each crystal surface under different PVP concentrations. This research provides deep insight into the supercritical solvothermal black box and lays the foundation for industrial application of this technology.
Ion-diffusion losses and j/p2-scaling of hollow-cathode effect in DC discharges with parallel-plate cathode configuration
Authors: Kudryavtsev A. , Eliseev S. I. , Yuan C.
Published: October 2024

A simple analytical model of a hollow cathode effect in a direct-current (DC) discharge with parallel-plate cathode configuration is presented. The model is based on the empirical formulation of non-local ionization rate produced by fast electrons within the hollow cathode and takes into account the loss of ions due to ambipolar diffusion. The model reproduces a transition from a DC discharge with two separate near-cathode regions to a single hollow-cathode type discharge with the accompanying dramatic increase in current density as intercathode separation L decreases. It is shown that for typical conditions of a planar hollow-cathode discharge, ambipolar losses are relevant and contribute to deviation from pL scaling laws. Comparison with classical experiments show good agreement up until the smallest intercathode separations. Application of the model for assessment of experimental data on properties of discharges with parallel-plate cathode configuration and for studies of secondary electron emission from cathode surfaces is discussed.
Lattice thermal conductivity and phonon transport properties of monolayer fluorographene
Authors: Han Seungbin , Lee Dongkyu , Lee Sungwoo , Lee Gun-Do , Lee Sangyeop , Jang Hyejin
Published: October 2024

Fluorographene, a fluorinated graphene-derivative, is expected to feature both high thermal conductivity and electrical insulation simultaneously, making it an emerging material for thermal management in electronic devices. In this paper, we investigated the lattice thermal conductivity and phonon transport properties of monolayer fluorographene using first-principles calculation. The solution of the fully linearized phonon Boltzmann transport equation gives the lattice thermal conductivity of monolayer fluorographene as 145.2 W m−1 K−1 at 300 K, which is about 20 times smaller than that of monolayer graphene. We systematically compared the phonon transport properties of all phonon modes in graphene and fluorographene in terms of phonon polarization. The significantly reduced thermal conductivity of fluorographene can be attributed to the lowering of both the lifetime of the flexural acoustic phonons and the group velocities of all acoustic phonons. We concluded that the broken in-plane mirror symmetry and the weaker in-plane chemical bonds induced by fluorination led to the suppression of the lattice thermal conductivity of fluorographene. Finally, we investigated the anomalously large contribution of optical phonons to the thermal transport process in fluorographene, where the large group velocities of selected optical phonons were derived from the in-plane acoustic modes of graphene. Our work provides a new approach to studying the influence of chemical functionalization on the phonon structure and exploring graphene-derived thermal management materials.
Hydraulic modeling of slag cover surface in top-blown molten bath smelting processes assisted by machine learning
Authors: Yang Kai , Yu Bo , Pan Jianxin , Wang Min , Wang Hua , Xiao Qingtai
Published: October 2024

Variation of the slag cover surface (SCS) in the oxygen-enriched top-blown molten bath smelting process is critical for the smelting efficiency of a complex Cu–S concentrate. However, capturing these variation characteristics is difficult because of the high temperature inside the molten bath and the dynamic complexity of the smelting process. In this work, machine learning (i.e., U-net algorithm and support vector machine) is combined with a skillful hydraulic model (i.e., gas–liquid two-phase top-blown agitated vessel) and an experimental measurement strategy to quantitatively explore the variation characteristics of the SCS in an oxygen-enriched top-blown molten bath smelting process. Results showed that a minimum of 30 images, with the smallest size being 900 × 600 pixels, was sufficient for the training process. The data accuracy of the training procedure ranged from 93.20% to 96.23% for identifying the SCS at the laboratory scale. The highest average height of 2.23 cm for the SCS occurred under the operational condition, with a flow rate of 160 L/h, a liquid temperature of 60 °C, and a liquid depth of 0.4 m. The chaotic systems of SCS in industry were deterministic. It was found that the proposed strategy could be used to accurately identify the variation characteristics of the SCS in the gas–liquid two-phase top-blown agitated vessel. The variation of the SCS in the industrial process could be roughly grasped by magnifying the height of the SCS obtained from the experimental data in the laboratory. Quantification of the variation characteristics of the SCS is useful to increase the smelting efficiency of the oxygen-enriched top-blown molten bath smelting process. This also provides insights for multiphase measurements in other studies related to efficient utilization of complex Cu–S concentrates.
Microgel particle-laden drop impact on a nanofiber material with varying wettability: Effect of liquid impalement
Authors: Piskunov Maxim , Piskunova Alexandra , Ashikhmin Alexander , Melnik Evgeny , Bolbasov Evgeny
Published: October 2024

This study deals with the impact of a microgel particle-laden drop of the water–agar solution onto nanofiber mats of different wettability at Weber numbers in the range of 14–502 and initial velocities in the range of 0.32–1.83 m/s. We examined the effects of inertia and the competition between the wetting and antiwetting pressures within the liquid impalement on the hydrodynamic behavior of drops in the spreading and contraction phases. Hydrophilic mat representing a full water absorption coating is manufactured by electrospinning from a mixture of polycaprolactone and polyvinylpyrrolidone; hydrophobic—from polytetrafluoroethylene. The micro- and nanoscale characteristics of nanofiber mats are analyzed by scanning electron microscopy and atomic force microscopy, respectively. A physical model of liquid flow under an impacting microgel particle-laden drop along and inside the micro- and nanostructures of nanofiber mats is proposed. Empirical expressions for the prediction of drop impact hydrodynamics are derived. By introducing the impalement factor, which is physically close to the Euler number, they take into account the difference between wetting and anti-wetting pressures in addition to inertia. Microgel particle-laden drop deposition accounting for the effect of liquid impalement inside nanofiber materials with different wettability is expected to enhance the efficiency of bioprinting polymer layers in tissue engineering.
Influence of boron particle diameter on combustion process of gel scramjet
Authors: Zhou Zhitan , Qu Shuaibin , Liu Bing
Published: October 2024

High-energy gel propellants applied to scramjet engines can effectively enhance combustion chamber efficiency and overall performance, which has a favorable application prospect in the hypersonic vehicle field. In this paper, numerical investigations are carried out on the combustion process of the boron-loaded gel fuel scramjet. Turbulent flow is simulated based on the standard k–ω model, and the motion of boron particles is solved using the discrete phase model. A surface reaction model is used to calculate the combustion process of the boron particles and gel. The comparison between numerical results and experimental data confirms the validity of the multiphase-coupled combustion model for a boron-dodecane gel scramjet engine. Based on this comparison, the variation patterns of engine combustion efficiency, temperature rise efficiency, cavity performance, and mass specific impulse under different boron particle diameters are investigated. The study shows that with increase in the boron particle diameter, the combustion chamber and temperature rise efficiencies initially increase and then decrease, whereas the specific impulse and total pressure recovery coefficients generally show a gradually decreasing trend. When the boron particle diameter is 45 μm, the temperature rise efficiency, combustion efficiency, and mass exchange rate reach their maximum values of 70.19%, 67.22%, and 34.60%, respectively. In summary, these research results provide a reference for the design optimization of boron gel scramjet engines.
Multiple nanodroplets coalescence in the coupling of electric field and swirl centrifugal field: A molecular dynamics study
Authors: Dou Xiaohui , Ju Mingdong , Li Bin , Xiang Wei , Wu Yan , Wang Zhentao , Wang Junfeng
Published: October 2024

The study of nanodroplets coalescence is crucial for the development of nanofluid technology and crude oil dehydration. The coalescence behavior of multiple nanodroplets in single electric field, single swirl centrifugal field, and the coupling of electric field and swirl centrifugal field (E&SC coupling fields) was investigated using the molecular dynamics (MD) method. The validation work verified the feasibility of the present MD models. The effects of electric field frequency (f) and strength (E), angular velocity (ω), water content (wt), and component types on the coalescence behavior of multiple nanodroplets were comprehensively investigated. The results show that direct current (DC) field was more suitable for dealing with low wt emulsions, while alternating current (AC) field was more suitable for dealing with high wt emulsions. The swirl centrifugal field with low (high) ω was correspondingly suitable for dealing with low (high) wt emulsions. The coalescence efficiency increased with increasing Re (20–160) and f (0–40 GHz). In addition, not only the large-sized droplets were easy to be formed, but also the small-sized droplets were easy to be removed in the E&SC coupling fields, which can enhance the coalescence efficiency between multiple nanodroplets. The critical CaE of AC&SC coupling fields was improved 18% than DC&SC coupling fields. Finally, the presence of Span-80 (SPAN) molecules increased the coalescence efficiency of multiple nanodroplets and raised the critical CaE to 0.11. The results of this paper can be potentially helpful for the development of high-efficiency electric dehydration technology at microscale.
Graphene-based dual-broadband terahertz absorber with independent frequency and amplitude tunability
Authors: Zhang Chenguang , Tang Chunming , Sun Jinlu
Published: October 2024

In the design of metamaterials, combining two active materials is acknowledged as an effective strategy for independently manipulating multi-band terahertz wave absorption. However, maneuvering two active materials requires a dual-physical field that is inherently complex and may reduce the modulation sensitivity due to hysteresis effects. In this paper, we present a design for a terahertz absorber based on a single active material that utilizes double-layer graphene arrays to achieve independently tunable dual-broadband absorption. The results show that dual-broadband with more than 90% absorption is obtained in the frequency ranges of 1.03–1.55 THz and 3.59–4.20 THz. Physical mechanistic analysis reveals that dual-broadband originates from hybridized plasmonic mode and localized surface plasmon resonance formed by the lower and upper graphene layers, respectively. Electrically controlling the corresponding graphene layer can implement independent active frequency and amplitude tunability of dual-broadband absorption, with modulation depths of 61.2% and 68.4%. The absorber exhibits polarization insensitivity and maintains dual-broadband absorption properties for a wide range of incidence angles. Moreover, the influence of slight dimensional variations in graphene patterns on absorption properties is also investigated. This dual-broadband absorber allows for independent active control of different parameters and could promote the practical applications of terahertz technology in modulators, detectors, and sensors.
Comparative study of mixing performance in non-Newtonian Xanthan Gum solutions and water using various injection techniques in a cylindrical channel with vortex generators
Authors: Kaid Noureddine , Alqahtani Sultan , Menni Younes , Chamkha Ali J.
Published: October 2024

The mixing performance of non-Newtonian fluids is critical in various industrial processes, directly impacting efficiency and product quality. This study investigates the mixing behavior of Xanthan Gum solutions, a widely used non-Newtonian fluid, compared to water using different injection techniques. Comprehensive flow visualization, wall shear stress measurements, pressure drop assessments, and mixing index evaluations were conducted within a cylindrical channel equipped with vortex generators. Results reveal that wall shear stress in Xanthan Gum solutions is significantly higher than in water and increases with rising Reynolds numbers. Additionally, Xanthan Gum solutions exhibit higher pressure drops and lower mixing index values due to their high viscosity and shear-thinning properties, which hinder mass transfer and diffusion. The central injection technique demonstrated superior mixing performance compared to lateral injection for both fluids. Notably, the mixing index for Xanthan Gum solutions stabilizes at Reynolds numbers of 500 and above, indicating that generated vortices do not alter the fluid's consistency. These findings align with the Herschel–Bulkley rheological model, characterizing the non-Newtonian behavior of Xanthan Gum solutions.
Advanced three-dimensional reservoir geomechanical modeling for enhanced characterization and stress profile predication of oil and gas reservoirs
Authors: Iqbal Sayed Muhammad , Cheng Leiming , Sun Haoran , Hu Dawei , Tian Shuang , Zhou Hui , Wang Qian
Published: October 2024

Reservoir characterization, assessing rock mechanical properties, and stress state are essential factors for exploration and development of a hydrocarbon or geothermal reservoir. Computing three-dimensional (3D) geospatial distribution of reservoir geomechanical properties on a reservoir scale becomes challenging, particularly when data are constrained to well locations and complex stress variation within the local anticline structure. To confront such challenges, advanced geostatistical techniques are essential to apply to capture the intrinsic spatial variation of reservoir geomechanical properties precisely. Therefore, this research examines the spatial variability of major mechanical rock parameters, pore pressure, principal stresses, and petrophysical properties of the Baikouquan Formation within the D1 well block, Mahu Sag, China. The dataset consists of seventeen wells and enables the construction of the reservoir's one-dimensional (1D) model, geomechanical parameters, and unified laboratory measurements for calibration of each well. Subsequently, a 3D model is developed via geostatistical simulation techniques, integrating well logs, seismic data, and core data reservoir geomechanical analysis. The modeling results show that the minimum and maximum horizontal stresses are 74–84 MPa and 95–106 MPa, respectively. However, the orientation of maximum horizontal stress was identified as northeast-southwest (NE- SW) and east-west (E-W). This investigation highlights the productiveness of 3D modeling by providing a detailed portrayal and knowledge of pre-production stress state and geomechanical parameters assessment to execute a variety of subsurface operations safely. In addition, it provides a platform for evaluating forthcoming strategies in the reservoir, such as determining the optimal spot and designing new well trajectory for field development and arbitrary scenarios.
Numerical evaluation of orientation averages and its application to molecular physics
Authors: Blech Alexander , Ebeling Raoul M. M. , Heger Marec , Koch Christiane P. , Reich Daniel M.
Published: October 2024

In molecular physics, it is often necessary to average over the orientation of molecules when calculating observables, in particular when modeling experiments in the liquid or gas phase. Evaluated in terms of Euler angles, this is closely related to integration over two- or three-dimensional unit spheres, a common problem discussed in numerical analysis. The computational cost of the integration depends significantly on the quadrature method, making the selection of an appropriate method crucial for the feasibility of simulations. After reviewing several classes of spherical quadrature methods in terms of their efficiency and error distribution, we derive guidelines for choosing the best quadrature method for orientation averages and illustrate these with three examples from chiral molecule physics. While Gauss quadratures allow for achieving numerically exact integration for a wide range of applications, other methods offer advantages in specific circumstances. Our guidelines can also be applied to higher-dimensional spherical domains and other geometries. We also present a Python package providing a flexible interface to a variety of quadrature methods.
Influence of guide vane skirt structure on sediment erosion of high-head turbine in high hardness and sandy river
Authors: Wang Haiqi , Pang Jiayang , Lai Zhenming , Li Shenhui , Jiang Dengyun , Wang Xueren , Xiang Peilin , Yao Bing , Zeng Yongzhong , Liu Xiaobing
Published: October 2024

Due to the high sand content and hardness in the Kezilesu River Basin, the high-head Francis turbines operating in this basin experience significant issues of guide vane erosion. By altering the skirt structure through varying guide vane height to skirt maximum diameter ratio Δ, the anti-abrasion design of turbine guide vane can be improved. The sand-water velocity, local sediment concentration distribution, and sediment erosion at the surface of a 250 m turbine in a power station within this basin were numerically analyzed under different Δ and operating conditions. The study investigated the influence of different Δ on the wear of the turbine guide vane. The numerical calculations of sand-water flow and sediment erosion in the turbine revealed that under rated working conditions, an optimal Δ = 1.511 was obtained. The sand and water flow remained stable, with low sediment concentration near the skirt. The maximum velocity of sand and water at the skirt wall was lower compared to other Δ conditions, i.e., approximately 45 m/s, and the weighted wear area was only 1057 mm2. Under low flow conditions, an optimal Δ = 1.511 was obtained, with the sediment concentration near the skirt gradually increasing with an increase in Δ. Additionally, the maximum velocity at the skirt wall was about 60 m/s under both conditions. The ratio Δ and the erosion resistance of guide vanes initially increased and then decreased. The research results offer a technical basis for the anti-abrasion design of the guide vane in high-head Francis turbines operating in high hardness, sandy waters.
Experimental study on the optimization and stability of methane foam systems under high-temperature, high-pressure, and high-salinity conditions
Authors: Huang Lijuan , Li Maoheng , Zhang Yinglin , Wang Tao , Chen Zhiwei , Li Zongfa , Liao Ruiquan , Zhong Xun , Ren Shaoran
Published: October 2024

Natural gas foam flooding has good fluid control and formation blockage capabilities, but the high-temperature, high-pressure, and high-salinity environment puts forward higher requirements for the comprehensive performance of natural gas foam. The impact of different gas types on the overall performance of the foam system was evaluated via a high-temperature, high-pressure visual foam stirrer. It is found that nitrogen foam systems have strong stability but weak foaming ability, while carbon dioxide foam systems exhibit strong foaming ability but poor stability. The methane foam system showed relatively better and balanced foaming ability and stability, making it more suitable to oil fields. Ten surfactants were screened and the results indicated that α-olefin sodium sulfonate (AOS14, AOS12) and sodium dodecyl sulfate formed natural gas foam systems with better overall performance with methane. The effects of temperature, pressure, surfactant concentration, and foam stabilizers on the comprehensive performance of the methane-AOS14 foam system were investigated. With increase in the surfactant concentration, the foaming ability and stability of the methane-AOS14 foam system first increase and then decrease. Higher temperatures reduced the viscosity of the surfactant solution and decreased the interfacial tension between solution molecules, weakening the overall performance. Increased pressure facilitated the generation of denser foam with smaller diameters, slowing the liquid loss from foam films and enhancing the overall performance. Under high-temperature, high-pressure, and high-salinity conditions, polymer-based foam stabilizers enhanced the stability of the methane-AOS14 foam system by forming a spatial network structure on the foam film, with higher molecular weight yielding better effects.
Examining graduate students’ positioning identities in
collaborative digital annotation tools
Authors: Burhan-Horasanlı Elif
Published: October 2024

Digital annotation tools (DATs) are one of the recent
digital platforms in which multiple users can read and annotate a
shared document. Scholars have explored the use and impacts of DATs
on peer interaction and documented that collaborative annotation
enables a more learner-centered academic space where students can
facilitate peer learning and socialization. The present study, on
the other hand, shifts the focus and explores the roles of peer
interaction to document three multilingual doctoral students’
micro-level positioning identities in a semester-long DAT activity.
The study’s data involved students’ collaborative annotations on 11
scholarly articles, semi-structured interviews, and demographic
information questionnaires. The data were analyzed with discourse
analysis techniques. Findings indicate that students’ previous
teaching experiences, linguistic and educational backgrounds, and
research interests shaped their annotation behaviors and discursive
choices and thus led to taking different positioning identities. The
study offers pedagogical implications that might cultivate and
foster quality peer interaction and involvement in collaborative DAT
activities.
Legitimation in contested industries
Authors: Catenaccio Paola
Published: October 2024

In order to be permitted to carry out their operations, companies need to be perceived as legitimate. Legitimacy is
awarded as a result of a deliberation process whereby the members of a society come to agree that a company’s operations can
be considered beneficial (or at least not harmful) both in principle and in practice. For companies operating in contested
industries, such as mining and agri-biotechnologies, gaining, and maintaining, a ‘social licence’ to operate can be
problematic, and requires extensive engagement in discursively mediated legitimation practices of an argumentative nature.
This chapter seeks to identify the prototypical argumentative patterns deployed in these industries in the service of
corporate legitimation, concluding that they rely on varieties of pragmatic argumentation based on strong
sustainability-framed objects of agreement to which are applied inferential processes ultimately resting on the
locus from final/​instrumental cause.
Argumentative style in international adoption dossiers
Authors: Brambilla Emanuele
Published: October 2024

Drawing on recent developments in Pragma-dialectics, this paper explores argumentation in a corpus of international
adoption dossiers (IADs) issued by an Italian adoption agency facilitating adoptions from India. A collection of all the
documents required by the native country of the adopted child, the IAD has an argumentative nature, as it aims at persuading
Indian authorities to approve adoption. The study reveals that it is characterised by a coordinative argumentation structure
and a hybrid argumentative style. This “combination” of detached and engaged styles is prototypical of the communicative
activity type at issue, as it is functional to radiating objectivity and commitment alike, with a view to enhancing the
acceptability of the standpoint concerning the eligibility of Italian prospective adoptive parents.
Teaching to manage implicit linguistic meanings
Authors: Giunta Giulia , Vallauri Edoardo Lombardi
Published: October 2024

Conveying information implicitly can reduce epistemic vigilance and critical attention. Commercial advertising and
political propaganda often exploit this property of linguistic implicitness to covertly convey questionable content, leading
to the manipulation of their audience. This highlights the necessity of educating individuals to recognize implicit content
and to critically engage with it, a practice that has not been sufficiently emphasized thus far. The paper provides a survey
of (i) the primary theoretical and experimental studies on the subject and (ii) some educational resources and materials
currently available to the public in Europe, aimed at enhancing awareness regarding the cognitive and social ramifications of
implicit information transmission, particularly through the media. The paper also offers (iii) specific didactic proposals
based on the authors’ research and teaching experiences.
Bentham on rhetoric
Authors: Charnock Ross
Published: October 2024

Bentham’s “Book of Fallacies” (1824) presents itself as a form of rhetorical self-defence. The author insists that
the fallacies are invariably used as counter-arguments, blocking political reform and preventing social progress. He claims
that the use of such paralogical techniques is a sure sign of corruption. However, he denies the efficacy of such rhetorical
arguments, insisting that only the weak-minded and ignorant are likely to be persuaded. A comparison of the “Book of
Fallacies” with his “Anarchical Fallacies” shows that his own preferred mode of argument is analytic and atomist rather than
rhetorical.

Bentham expressed radical views on contentious subjects of public importance. His proposals are still widely
discussed in academic circles, but were rarely taken up by posterity. His wholesale denunciation of rhetoric in all its forms
may appear irrational; however, if he believed that his ideas were rejected for purely fallacious reasons, then his attitude
may be explained as a reluctant recognition of the power of rhetoric over reason.
Management by keywords
Authors: Jaworska Sylvia , Stenka Renata , Parlakkaya Emre
Published: October 2024

We examine a corpus of integrated reports endorsed as best practice to explore how the concept of ‘capital’ and
its novel extension into six types of capitals — including ‘human’, ‘social and relationship’, and ‘natural’ — are discursively
constructed and legitimised in the corporate field. Our findings show that the new capitals are mentioned frequently, but in a
bullet point-like way without elaboration on their significance — a response strategy that we call ‘management by keywords’. Our
analysis suggests that the collective business mindset remains centred on financial value creation, with the new capitals acting
as servants to financial objectives. This questions the transformative power of the six capitals, hailed as a business innovation,
to move corporate practices towards more social and environmental sustainability via enhanced corporate accountability. At the
conceptual and methodological level, the study showcases the potential of corpus linguistics for fostering interdisciplinary
research involving linguists and scholars in business and accounting.
Query a corpus in near-natural language
Authors: Milička Jiří , Šebestová Denisa
Published: October 2024

This paper addresses the pressing issue of accessibility of corpora to users who are not able or willing to
learn a formal query language. It introduces a working online automatic translator from a near-natural language into
the Corpus Query Language (CQL), as used in SketchEngine, Czech National Corpus web
applications, and other services. The translator does not require strict syntactical patterns and allows for a certain
amount of typing errors, using the redundancy associated with natural language. It allows querying corpora of 35
languages hosted by the Czech National Corpus infrastructure, all of them annotated in the Universal
Dependencies formalism. Alternatively, the translated CQL code can be employed in other compatible systems. The paper
both presents the theoretical assumptions of our solution and outlines the details of its implementation, including
examples of use.
Translating customer identity in male cosmetics advertising
Authors: Eikosideka Aikaterini
Published: October 2024

Addressee identity awareness often affects how speakers structure discourses. The study views male cosmetics
advertising through a pragmatic lens to investigate how customer identity is shaped cross-culturally through men’s deodorant
advertisements on the English and Greek market. The study uses communication styles (Hofstede,
Hofstede, and Minkov 2010) to account for (a) naturalistic translation shifts in verbal or multimodal data which tend
to improve product reception in the Greek target context and (b) experimental data to confirm how masculinity is shaped and
attributed to male customers by well renowned deodorant companies. The data analysis reveals that socio-pragmatic parameters are
operative in accounting for differences in the two contexts. Findings show cross-cultural variation along three of Hofstede, Hofstede, and Minkov’s (2010) communication styles, namely,
individualism/collectivism, masculinity/femininity and uncertainty avoidance/tolerance, correlating it with a fourth dimension of
the framework, the high/low power distance one. The significance of the research lies in that it shows how commercial content
producers register locally shared gender identity assumptions relevant to the audience type they address. Translation is another
platform where pragmatic variation may be fruitfully explored cross-culturally.
Transferring the unfamiliar in Russian and Greek AVT
Authors: Khusainova Alfia
Published: October 2024

The study examines transfer strategies in identity construction instances, in Greek and Russian audio-visual translation (AVT) modalities (subtitling and dubbing), of the English animated film for children,
The Rise of the Guardians (2012). It explores whether and how translator awareness of target cultural background may affect the strategies used in the transfer. Results suggest that the level of un/familiarity of a target culture with a source-text (ST) cultural item affects the translation strategies across English-Russian and English-Greek differently, on the basis of preferred politeness orientations (negative and positive, respectively) prevailing in the target environments. Testimonies of film viewers and questionnaire respondents who are unfamiliar with the cultural items confirm aspects of the analysis. The significance of the research lies in that it provides further insight into the way Greek and Russian AVT practices handle and transform English audio-visual unfamiliar entities, which may advance understanding of cross-cultural processes in AVT.
W. B. Yeats
Authors: Nasi Eleni
Published: October 2024

The study analyzes three Greek versions of two of W. B. Yeats’ poems, ‘When You Are Old’ and ‘No Second Troy’, both related to the theme of unrequited love, merging feelings of bitterness and love. It examines how power distance manifests itself in the three versions of the poems. The study designed a questionnaire to evaluate potential variation in the type and intensity of feelings shaped in the three Greek versions of the two poems. Findings show that there is variation in the interpersonal distance between the poet and the beloved: some translators seem to emphasize bitterness and empathy on the part of the disappointed poet, while others assume more equal power distribution between the poet and the beloved
The Winter’s Tale on the Greek stage
Authors: Stagaki Iokasti-Rigopoula
Published: October 2024

The study examines two Greek target versions (1952, 2004) of Shakespeare’s
The Winter’s Tale (1611) in order to examine how politeness orientations and awareness of power distance change to shape the relational dynamics between characters. In the two target versions male characters vary intra-culturally and interculturally, while themes such as female submissiveness and gender relations show intra-cultural variation. Analysis of naturalistic translation data shows variation in the way certain characters are reshaped in the two versions, which is confirmed by experimental data elicited by a questionnaire. The significance of the research lies in that pragmatics may provide a basis for the study of intra-cultural variation in characters’ identities in a play, and in that translation is a rich resource for tracing pragmatic variation in the manifestation of pragmatic phenomena.
Single-photon and multi-photon Fano lines for helium and neon using tRecX-haCC
Authors: Chundayil Hareesh , Scrinzi Armin , Pramod Majety Vinay
Published: October 2024

Single-photon and multi-photon ionization of helium and neon atoms by ultrashort extreme ultraviolet radiation is studied. The wavelength of radiation is chosen to excite a set of doubly excited states. We analyse the lineshapes arising from the presence of doubly excited states and numerically demonstrate the sensitivity of the Fano q parameter to the order of multi-photon process. The computations were performed using the tRecX-haCC package developed by the authors. The tRecX-haCC package solves the time-dependent Schrödinger equation in the presence of a laser pulse and computes the photoelectron spectra including the narrow resonance peaks using the time-dependent surface flux method (tSurff) and iSurf techniques.
Effects of rapid thermal annealing on telecom C-band InAs quantum dots on InP (100) grown by droplet epitaxy
Authors: Chan Chak Lam , Sala Elisa Maddalena , Clarke Edmund , Heffernan Jon
Published: October 2024

We demonstrate the effects of rapid thermal annealing on emission from telecom C-band InAs/InP (100) quantum dots (QDs) grown by droplet epitaxy in metal–organic vapour phase epitaxy. Room temperature photoluminescence from the QD ensemble shows a tuned emission wavelength through the C-band and O-band while improving the emission intensity by ∼4.5 times at an annealing temperature of 770 °C. A blueshift of the QD emission up to 430 nm has been achieved. Low-temperature micro-photoluminescence demonstrates single QD emission from the annealed samples with an improvement in linewidth of up to 30%.
A multilevel resistive switching memristor based on flexible organic–inorganic hybrid film with recognition function
Authors: Liu Chang , Ma Ying-Jie , Sun Song , Zhu Lin , Gao Li , Lei Jin , Zi Tao-Qing , Li Wei-Ming , Wu Di , Li Ai-Dong
Published: October 2024

Brain-inspired neuromorphic computing systems fueled the emergence of memristor-based artificial synapses, however, conventional silicon-based devices restricted their usage in the wearable field because of their difficulty in bending. To tackle the above challenge, a vertically structured flexible memristor with aluminum-based hydroquinone organic–inorganic hybrid film and Al2O3 as the functional layer, ITO and Pt as the bottom and top electrodes, and PET as the substrate has been developed utilizing molecular/atomic layer deposition to achieve a tradeoff between the resistive transition properties and the flexibility of memristors. The obtained devices combine stable resistive switching behavior and flexibility, showing high switching ratio of 103, better retention (up to 105 s) and endurance properties (up to 104 cycles), and robustness at radius of curvature of 4.5 mm after 104 bending cycles. Furthermore, the presence of multilevel resistive states in these devices ensures that the memristor can emulate synaptic properties such as paired-pulse facilitation, transition from short-term plasticity to long-term plasticity, long-term potentiation and depression, and spike-time-dependent plasticity. The resistive switching mechanism and the role of the bending state on the electrical performance of the device are explored. The fully connected artificial neural network based on the memristor can achieve a recognition accuracy of 90.2% for handwritten digits after training and learning. Flexible memristor will bring feasible advances to the integration of neuromorphic computing and wearable functionality.
Non-equilibrium dynamic hyperuniform states
Authors: Lei Yusheng , Ni Ran
Published: October 2024

Disordered hyperuniform structures are an exotic state of matter having suppressed density fluctuations at large length-scale similar to perfect crystals and quasicrystals but without any long range orientational order. In the past decade, an increasing number of non-equilibrium systems were found to have dynamic hyperuniform states, which have emerged as a new research direction coupling both non-equilibrium physics and hyperuniformity. Here we review the recent progress in understanding dynamic hyperuniform states found in various non-equilibrium systems, including the critical hyperuniformity in absorbing phase transitions, non-equilibrium hyperuniform fluids and the hyperuniform structures in phase separating systems via spinodal decomposition.
Structure and properties of mixed valent CeFe2Al8
Authors: Kurawle Nilofar , Samanta Soumen , Bhattacharya Shovit , Rayaprol Sudhindra
Published: October 2024

Temperature dependent magnetic, electrical transport and thermal properties of polycrystalline orthorhombic CeFe2Al8 intermetallic compound have been studied along with its isostructural La counterpart, LaFe2Al8. For the cerium compound, low field dc magnetization exhibits an antiferromagnetic like ordering (T
N) ∼ 4 K. The main feature of the magnetic susceptibility plot is a broad hump spanning a large temperature range, indicating mixed valence of Ce in the compound, in good agreement with reported literature. However, contrary to the reported observations we find that the mixed valence state is very robust and was evident even up to very high magnetic fields (> 2 T). Further, in this work we report 3d core level photoemission spectra of cerium in CeFe2Al8, to understand the valence state of cerium ions in this system. Additionally, from resistivity measurements it is found that, CeFe2Al8 is metallic with no indication of any anomaly, till the lowest temperature of measurement. Specific heat measurements show very low value of heat capacity and electronic contribution. The isostructural La analogue, LaFe2Al8 compound shows broadness in susceptibility with maxima around 44 K which may be attributed to ordering of Fe moments. The comparison of Ce and La compounds brings out the role of Fe magnetic moments which may be responsible for competing with cerium moments and resulting in the dilution of long-range magnetic order, also contributing to magnetic frustration in CeFe2Al8.