bluuebunny/crossref_metadata_2025 huggingface dataset:
Research on the improvement and mechanism of La-Ce on inclusions in GCr15 bearing steel
Authors: Wu Xiang-Yu , Han Zheng-Peng , Li Yu-Tang , Tian Qian-Ren , Fu Jian-Xun
Published: October 2024

Rare earth can effectively improve the morphology of inclusions in steel. This paper investigates the modification effects and mechanisms of La-Ce composite rare earth on the inclusions in GCr15 bearing steel by adding different contents of La-Ce. The research shows that the typical inclusions in GCr15 bearing steel were Al2O3 and MnS. The addition of La-Ce enhanced the cleanliness of the molten steel and caused a morphological transformation of the inclusions. With La-Ce content less than 96 ppm, as the La-Ce content increased, the inclusion types in GCr15 bearing steel transition from Al2O3 + MnS → REAlO3 + RExSy → RE2O2S + RExSy. (RE were La and Ce). Due to the higher interfacial energy between the rare earth inclusions and the matrix, their morphology tended to be more spherical. When the La-Ce content exceeded 96 ppm, it led to the formation of RE2O3 inclusions in the steel. Although the morphology of individual RE2O3 inclusions also tended towards spherical, the overall morphology became irregular due to the aggregation and growth of the inclusions.
Pratiques actuelles, histoire inactuelle et jouissance sédimentée
Authors: Lucciardi Théo
Published: October 2024

Les pratiques actuelles de la psychanalyse, autour de réalités cliniques contemporaines, font appel à une écoute prêtée aux coordonnées sociales, culturelles et Historiques du symptôme et de la structure. À ce titre, l’appel à l’Histoire constitue un risque de surdité à la question historique du sujet en tant que contingente mais non-superposable à l’Histoire sociale ou culturelle. Nous proposons de distinguer ces deux modes de discursivité en faisant discuter les propositions de Michel de Certeau et d’Hervé Mazurel (avec Norbert Elias), puis de démontrer que le concept lacanien de lalangue permet un liage original de ces deux champs distincts.
Dialectiques de l’acte et des séparations auprès des adolescents placés
Authors: Baidi Christophe
Published: October 2024

L’article a pour objet le nouage entre le passage à l’acte, traité comme une manière réelle pour le sujet de survivre symboliquement à une possibilité d’évanouissement à l’occasion d’une trop grande proximité avec l’objet a cause du désir, ainsi que la séparation, réelle et symbolique, opérée par un éloignement familial. Nous nous soutiendrons d’une pratique clinique auprès d’adolescents dits « sous main de justice », et placés au sein d’un foyer de la Protection Judiciaire de la Jeunesse à la suite de la réalisation de délits. Après une reprise historique et conceptuelle des mécanismes adolescents comme échos de l’infantile, entre passages à l’acte et actings, nous questionnerons les effets cliniques d’une lecture des actes posés en tant que symptômes, paroles récusées mais adressées à un Autre qu’il reste à constituer afin d’opérer une fonction symbolique et soignante.
La violence contre la dissidence sexuelle au Chili. Axes d’une discussion inachevée
Authors: Jofré Daniel , Chamorro Camilla , Cádiz Dania , Dondero Fernando , Arredondo Maya
Published: October 2024

Le but de cet article est de visiter certains des axes de la discussion sur les liens entre la violence, les discours de haine et les agressions contre les groupes minoritaires dans la population chilienne. Pour ce faire, nous avons repris certaines des réflexions faites dans le cadre du crime du jeune homosexuel D. Z. Il s’agit d’un événement très significatif au Chili, qui a donné lieu à des avancées législatives. Cependant, nous constatons ses limites pour aborder les fondements d’une violence qui renvoie à la mémoire historique de la société chilienne, laquelle donne lieu à des récits abondants, mais fragmentaires, sur la violence, qui la promeuvent, la justifient et la rendent invisible.
Présences proches dans l’exclusion : cliniques hors langage, pratiques dans les marges
Authors: Humphreys Derek
Published: October 2024

L’expérience de ces 40 dernières années nous apprend que la clinique de l’exclusion exige une approche transversale. La dimension psychique de cette approche doit nécessairement réinterroger son rapport à la théorie et inventer des interventions adaptées à ces souffrances. Le présent article propose un bref regard rétrospectif destiné à comprendre la complexité du processus d’exclusion ainsi que l’évolution des interventions dans ce champ, suivi d’une réflexion sur le rapport entre ces pratiques et les hypothèses psychopathologiques sur lesquelles elles se basent. Affirmant l’importance de l’expérience clinique dans le développement de références théoriques, toujours à renouveler en psychanalyse, l’article propose un travail autour du trauma comme paradigme compréhensif de cette clinique atypique. Cette clinique hors-langage, faite de rencontres inattendues dans des situations qui ne peuvent être référées aux conditions habituelles de la séance, est toujours à réinventer. La démarche du réseau des Cévennes, autour de F. Deligny, est proposée comme source d’inspiration pour cette clinique.
La psychanalyse, l’envers de la criminologie ?
Authors: Firpi Sebastien
Published: October 2024

Par cette question posée dès le titre nous cherchons à confronter les rapports discursifs respectifs – au sujet et à la vérité – déployés du point de vue de la criminologie et de la psychanalyse. Cette mise en tension suppose des effets sur quelques pratiques institutionnelles et cliniques, non sans en révéler les enjeux politiques. Notre réflexion est issue de l’expérience d’une praxis articulée à l’enseignement lacanien et tente de soutenir l’éthique du discours analytique – en tant que boussole – afin de maintenir une dialectique possible par le nouage/dénouage entre psychanalyse et politique. Pour ce, reste à soutenir que la psychanalyse a toujours été actuelle en tant que le sujet est baigné dans l’actualité du lien social au sein duquel il interroge continuellement son espace de parole.
D’un intérêt à une nécessité de la psychanalyse en milieu pénitentiaire
Authors: Limousin Jordan
Published: October 2024

Cet article vise à resituer les intérêts de la clinique psychanalytique dans un service de psychiatrie en milieu carcéral, à l’endroit même où le sujet se trouve enfermé et bâillonné jusque dans sa parole. En faisant un retour sur les possibilités du discours analytique de s’insérer dans la psychiatrie de service public, puisqu’il s’agit là du seul lieu où la psychanalyse peut trouver une place dans le milieu carcéral, nous tentons modestement de montrer comment l’analyse se situe à contrecourant du discours du pouvoir établi par Michel Foucault dans « Surveiller et Punir ».

En passant par les nouvelles extensions du panoptisme, nous montrons que la parole du détenu perd de plus en plus sa substance face à une machine judiciaire et carcérale. Alors, par son éthique telle que Lacan la décrit, il est possible pour la psychanalyse de redonner cette importance et cette responsabilité subjective (a contrario de la responsabilité judiciaire) qui permet au sujet de donner un sens à ses actes et donc par là-même de s’ouvrir à une nouvelle forme de discours, qui, de surcroît, lui permettra de symboliser quelque chose du réel qui l’a dépassé et mis à cette place.
Métropole et psychogéographie de l’errance. La ville et les signes
Authors: Pawlik Claude
Published: October 2024

Compte tenu de la difficulté à habiter un lieu à visée de réinsertion sociale et des ancrages à des territoires urbains liés aux pratiques de survie, nous interrogerons les effets et les fonctions psychiques de la ville vécue et des pratiques qui y ont cours dans l’errance. Dans l’arpentage d’un territoire, le sujet se soutiendra de son environnement urbain : les éléments non-métabolisé du psychisme sont déposés au cours de la marche (ou autres pratiques de rues) sur les composants du territoire, celui-ci renvoyant des signes en retour. C’est dans ce territoire que peut s’aménager une rencontre avec un clinicien.
Une jeunesse sans à venir : confrontation à la clinique du vide
Authors: Cloës Claude , Marche Jean-Christophe
Published: October 2024

La clinique psychiatrique contemporaine confronte les soignants en psychiatrie à des syndromes et des discours inédits qu’il convient d’interroger afin de pouvoir adapter les propositions thérapeutiques. La modernité produit des effets sur la construction psychique des jeunes qui se traduit en particulier par une clinique de la « douleur du vide » où le sujet semble suspendu dans une temporalité dénuée de toute projection vers l’avenir. L’enjeu des professionnels est de dépasser les effets négatifs du contre-transfert afin de réinscrire ces jeunes dans un à venir, leur offrant de passer de la douleur du vide à la souffrance de l’être.
L’amour sans frontière
Authors: Alerini Paul
Published: October 2024

Dans le cours de la consultation bénévole d’un migrant africain, le don d’un comprimé d’un anxiolytique a produit un effet thérapeutique immédiat sur ses insomnies, ce qui n’est explicable que par l’effet d’un transfert qui noue une pratique psychanalytique à l’analogie d’une pratique traditionnelle. L’histoire clinique de ce patient est liée à celle de sa femme qui était en psychothérapie avec une collègue psychanalyste. C’est l’histoire d’un grand amour qui a survécu aux épreuves de l’exil.

Témoignage sur une expérience hors-cadre de la psychanalyse.
Corps et murs parlants
Authors: Lévy Alexandre
Published: October 2024

Ce travail présente l’œuvre de l’artiste chinois Liu Bolin, jouant sur la disparition en trompel’œil des corps dans l’environnement urbain. À partir de ces images photographiques révélant les dimensions de la honte ainsi que celle de la hantise, nous pouvons tirer un certain nombre d’enseignements à l’endroit de la clinique des corps parlant pris dans le lien social, notamment le fait que le mur détermine et façonne le corps du parlant ainsi que la manière de se soutenir dans le monde. Notre démarche prend l’œuvre de Liu Bolin comme point de départ afin de dégager des pistes de réflexions cliniques autour des conséquences du réel du mur sur le corps des parlêtres. Il en résulte un développement autour de la « hontologie », science de l’être qui, avec un « h » ne peut en passer que par l’affect de honte, et de la « hantologie », science de la hantise.
L’inconscient passe-muraille
Authors: Le Corre Stévan
Published: October 2024

L’inconscient, avançons-nous, est un passe-muraille. Une idée qui ne s’entend qu’à considérer d’abord le mur en ce qu’il produit une clôture offrant les conditions d’un repli pour le sujet. Ainsi le mur crée un domaine retranché où l’inconscient vient jouer les passe-murailles. Nous étayerons cette idée à l’appui d’une donnée récurrente de la pratique clinique avec les enfants, à savoir qu’ils parlent très fréquemment de l’espace de leur chambre et de ce qu’ils s’imaginent pouvoir y faire intrusion. Nous proposerons, en nous référant à la topologie de Lacan, une manière d’envisager cette clôture singulière qui invite l’Autre au sein du repli de l’intimité.
Management of Portal vein Thrombosis in Cirrhosis
Authors: Meena Babu Lal , Sarin Shiv Kumar
Published: October 2024

Portal vein thrombosis (PVT) is one of the common complications of cirrhosis. The incidence of PVT correlates with liver disease severity—higher incidence in patients with Child–Turcotte–Pugh (CTP) C, large spontaneous portosystemic shunts, hepatofugal portal flow, and in the presence of hepatocellular carcinoma. PVT may worsen ascites, increase the risk and poor control of variceal bleeding. The occurrence of PVT may increase morbidity and lower survival after a liver transplant. Using statins prevents the occurrence of PVT, whereas beta-blockers may aggravate its occurrence. Cross-sectional imaging is mandatory for the precise diagnosis and classification of PVT. Symptomatic, occlusive PVT and candidacy for liver transplantation are the main indications for anticoagulation. Vitamin K antagonists, low-molecular-weight heparin, and newer anticoagulants are effective and safe in cirrhosis. Direct-acting oral anticoagulants are agents of choice in early cirrhosis (CTP A, B). The duration of anticoagulant therapy, predictors of response, and management of complications of cirrhosis while on therapy require in-depth knowledge and individualized treatment. Transjugular intrahepatic porto-systemic shunt can be considered in nonresponsive cases or when anticoagulants are contraindicated. This manuscript reviews the latest updated knowledge about managing PVT in cirrhosis.
Dietary Risk Factors: Fiber and Beyond
Authors: Roberson Jeffrey L. , Pettke Erica N.
Published: October 2024

The incidence of diverticulosis continues to rise throughout western nations with collateral increases in the frequency of diverticulitis. However, the mechanism behind the transition from asymptomatic diverticulosis to complicated diverticulitis is incompletely understood. Dietary intake has long been investigated as one of, if not the main, links in the continuum of disease. As the world's diet continues to evolve with increasingly prevalent processed and high-fat food, longitudinal studies have emerged with a goal of finally explaining how diet influences the development of diverticulitis. While low-fiber, high-fat diets are believed to play a role in the development of an index episode of diverticulitis, the role in recurrent disease remains uncertain. More recent avenues of interest include the role of the microbiome, probiotics, and adjunct treatments such as 5-ASA and rifaximin. While robust longitudinal studies have identified an association between low-fiber, high-fat diets and the development of index diverticulitis, the impact of dietary composition and modification on disease recurrence remains unclear and fails to meet the threshold for societal recommendations.
Decay of correlations in the monomer-dimer model
Authors: Quitmann Alexandra
Published: October 2024

We consider the monomer-dimer model, whose realisations are spanning sub-graphs of a given graph such that every vertex has degree zero or one. The measure depends on a parameter, the monomer activity, which rewards the total number of monomers. We consider general correlation functions including monomer-monomer correlations and dimer-dimer covariances. We show that these correlations decay exponentially fast with the distance if the monomer activity is strictly positive. Our result improves a previous upper bound from van den Berg and is of interest due to its relation to transverse spin-spin correlations in classical spin systems. Our proof is based on the cluster expansion technique.
Determining the chemical ordering in nanoalloys by considering atomic coordination types
Authors: Farris Riccardo , Neyman Konstantin M. , Bruix Albert
Published: October 2024

The energetically most favorable chemical ordering of bimetallic nanoparticles can be characterized by combining global optimization algorithms and surrogate energy models. The latter approximate the energy of nanoalloys relying on structural descriptors, training models, and data. Here, we systematically evaluate the performance of highly data-efficient topological descriptors [Kozlov et al., Chem. Sci. 6, 3868 (2015)] for predicting the energies of metal nanoalloys with different chemical orderings. We also introduce a new descriptor based on atomic coordination types, which results in a less data-efficient and interpretable approach, but improves the general accuracy and the quantification of orderings in the inner parts of nanoparticles. The capacity of both the original and new approaches in combination with a basin hopping algorithm is illustrated by generating convex hulls of PdZn nanoalloys and predicting the resulting active surface site distribution as a function of particle composition. Finally, we show how these approaches can be combined with machine-learning adsorption models in electrocatalysis studies for a fast evaluation of the reactivity landscape of targeted nanoalloys.
Study on the damage prediction model of PTFE/AL projectiles on the basis of regression analysis
Authors: Tong Huan , Hou Cong , Li Xiangrong , Chen Yongkang , Yang Lei
Published: October 2024

Polytetrafluoroethylene/aluminum (PTFE/AL) projectiles can effectively enhance the damage efficiency of traditional projectiles. Numerical simulation via ANSYS AUTODYN and data analysis via Origin are effective means to help predict the damage efficiency of PTFE/AL projectiles. In order to obtain a suitable damage prediction model to describe the explosive damage behavior, the Smoothed Particle Hydrodynamics (SPH) algorithm was used to describe the deflagration behavior of the core. In addition, core reactive models under different conditions of projectile caliber, impact velocity, Rolled Homogeneous Armor (RHA) steel target thickness, and head metal block thickness were established. The reactive behaviors under the influence of multiple factors were analyzed on the basis of the single-factor model. In addition, the multiple nonlinear regression damage prediction model was obtained, and the effectiveness of the model was verified. The results show that the multiple relationship index model has the highest reliability, and the overall error can be controlled within 20%. The research method has a certain guiding significance for the damage evaluation of the PTFE/AL projectile.
Multi-mode interference waveguide chip-scale spectrometer (invited)
Authors: Amin Md Nafiz , Ganjalizadeh Vahid , Adams Tyler J. , Dixon Porter B. , Weber Zoe , DeMartino Matthew , Bundy Kevin , Hawkins Aaron R. , Schmidt Holger
Published: October 2024

Spectral analysis of light is one of the oldest and most versatile scientific methods and the basis of countless techniques and instruments. Miniaturized spectrometers have recently seen great advances, but challenges remain before they are widely deployed. We report an integrated photonic spectrometer that achieves high performance with minimal component complexity by combining imaging of light propagation patterns in multi-mode interference waveguides with machine learning analysis. We demonstrate broadband operation in the visible and near-infrared, 0.05 nm spectral resolution, and an array of four spectrometers on a single chip. Two canonical applications are implemented: spectral analysis of the solar spectrum with neural network reconstruction and detection of Rayleigh scattering from microbeads on an optofluidic chip using principal component classification. These results illustrate the potential of this approach for high-performance spectroscopy across disciplines.
Optimization method for protecting the robustness of first-order nodes in complex networks
Authors: Chen Mengjiao , Wang Niu , Wei Daijun
Published: October 2024

The robustness of complex networks remains a significant challenge in network science. This study proposes a method aimed at optimizing network robustness by introducing a protection mechanism for the first-order neighbor nodes of a failed node. The load adjustment parameter α and the protection strength parameter δ in the protection mechanism affect the threshold Tc have been determined through theoretical analysis. In addition, in the experiment of a scale-free network, it was proven that α and Tc exhibit a positive proportional relationship, while δ and Tc exhibit an inverse proportional relationship. Notably, the introduction of the protective mechanism consistently resulted in a lower Tc compared to scenarios without protection, validating its efficacy in preventing cascading failures. Finally, the robustness of empirical networks, which include the American Football network, Wikiquote Edits network, and Euroroads network, is compared before and after adding protection. The results demonstrate that the first-order neighbors of failed node are protected, which is an effective method for improving the robustness of complex networks.
Multiscale rheology from bulk to nano using a quartz tuning fork-atomic force microscope
Authors: Shim Jaewon , Kim Chungman , Lee Manhee , An Sangmin , Jhe Wonho
Published: October 2024

Rheological characteristics exhibit significant variations at nanoscale confinement or near interfaces, compared to bulk rheological properties. To bridge the gap between nano- and bulk-scale rheology, allowing for a better and holistic understanding of rheology, developing a single experimental platform that provides rheological measurements across different scales, from nano to bulk, is desirable. Here, we present the novel methodology for multiscale rheology using a highly sensitive atomic force microscope based on a quartz tuning fork (QTF) force sensor. We employ microscale and nanoscale shear probes attached to the QTF, oscillating parallel to a substrate surface for rheological measurements as a function of the tip–substrate distance with sub-nanometer resolution. Silicone oils with viscosities ranging from 5 cSt to 10 000 cSt are used as calibration samples, and we have successfully derived the bulk rheological moduli. Furthermore, an increase in modulus is observed within the regime of tribo-nanorheology at distances less than 50 nm from the surface. Through such multiscale measurements, it is confirmed that this increase is due to the formation of a layered structure of silicone oil polymers on the solid surface. These results provide a comprehensive understanding of the tribo-rheological properties of complex fluids across different scales.
Experimental investigation of steel-concrete composite slabs subjected to underwater near-field explosion
Authors: Li Xu , Yue Songlin , Qiu Yanyu , Liu Lu , Gao Xingkai , Wang Jianping
Published: October 2024

Steel-concrete composite slabs are vital structural components in engineering facilities, exhibiting high shear strength, stiffness, and energy dissipation capabilities. However, few studies have examined steel-concrete composite slabs subjected to underwater explosions. This study compared the dynamic response and damage characteristics of single-side steel-concrete composite slabs, steel-concrete-steel composite slabs, and reinforced concrete slabs subjected to underwater near-field explosions through experiments. The results indicated that bubble loading exacerbated specimen damage beyond shock wave loading alone, highlighting its significance. Each specimen exhibited distinct damage patterns, including crack distribution, concrete crushing, spalling, and localized damage. Compared with single-side steel-concrete composite slabs and reinforced concrete slabs, steel-concrete-steel composite slabs exhibited the weakest dynamic response, with maximum displacement reduced by 53% and 38%, respectively. Furthermore, they exhibited superior integrity after the blast, exhibiting excellent anti-explosion performance. These research results offer valuable insights for the explosion-resistant design of underwater engineering structures.
Effects of particle density and fluid properties on mono-dispersed granular flows in a rotating drum
Authors: Chen Yu , Suo Si , Dong Mingrui , Zhong Haiyi , Wei Deheng , Gan Yixiang
Published: October 2024

Due to their simple geometric configuration and involved rich physics, rotating drums have been widely used to elaborate granular flow dynamics, which is of significant importance in many scientific and engineering applications. This study both numerically and experimentally investigates dry and wet mono-dispersed granular flows in a rotating drum, concentrating on the effects of relative densities, ρs−ρf, and rotating speeds, ω. In our numerical model, a continuum approach based on the two-phase flow and μI theory is adopted, with all material parameters calibrated from experimental measurements. It is found that, in the rolling and cascading regimes, the dynamic angle of repose and the flow region depth are linearly correlated with the modified Froude number, Fr*, introducing the relative density. At the pore scale, flow mobility can be characterized by the excess pore pressure, pf. To quantify the variance of the local pf, it is specifically nondimensionalized as a pore pressure number, K, and then manifested as a function of porosity, 1−ϕs. We find K(ϕs) approximately follow the same manner as the Kozeny–Carman equation, K∝ ϕs2/1−ϕs3. Furthermore, we present the applicability of the length-scale-based rheology model developed by Ge et al. [“Unifying length-scale-based rheology of dense suspensions,” Phys. Rev. Fluids 9, L012302 (2024)], which combines all the related time scales in one dimensionless number G, and a power law between G and 1−ϕs/ϕc is confirmed. This work sheds new lights not only on the rigidity of implementing continuum simulations for two-phase granular flows, but also on optimizing rotating drums related engineering applications and understanding their underlying mechanisms.
Analysis of drag reduction and partial setup of riblets surface on the airfoil
Authors: Pang Yan , Zhang Yixuan , Zhang Tiejun , Qian Zhansen , Liu Zhaomiao
Published: October 2024

Using riblet structures to modulate the turbulent boundary layer to reduce frictional drag is important for vehicle stability and range. The flow on the airfoil surface at different angles of attack is different, and the effect of the riblets structure on the turbulent boundary layer flow will be changed, which in turn affects the drag reduction effect. In this paper, the drag reduction characteristics of V-shaped riblets are investigated experimentally by the particle image velocimetry technique. The distributions of mean velocity, friction coefficient, drag reduction rate, and coherent structure in the boundary layer on the airfoil surface at angles of attack from 0° to 12° are analyzed, and the effects of smooth and riblets surfaces on the turbulent flow characteristics near the wall are compared. Based on these results, the airfoil surface was zonally covered with riblets to investigate further the effects of the riblets' covering positions on the drag reduction of the airfoil at different angles of attack. The results show that the riblets reduce the intensity, distribution, and probability of the eject and sweep events in the turbulence bursts by suppressing the velocity fluctuations at the near-wall surface, thus realizing the reduction of turbulence drag. The zoned arrangement of riblets can effectively regulate the airfoil surface flow and reduce the unfavorable effects of the riblets on the laminar flow region and flow separation region on the surface of the airfoil with different angles of attack, and the results of the study can provide a reference for the influence of the coverage range of the riblets on the drag reduction effect.
Research on risk assessment technology for transmission lines in mining affected areas
Authors: Lu Zhumao , Xu Siqing , Wang Shuai , Meng Xiaokai , Hou Fei
Published: October 2024

This article studies the correlation between ground surface deformation of transmission lines in mining affected areas and various geological and human factors, and it constructs the corresponding numerical models. By analyzing the distribution of goaf areas, geological structures, slope structures, and other factors that affect transmission lines, the tower foundations’ deformation characteristics and disaster mechanisms under mining conditions have been clarified. On this basis, research on ground surface deformation risk prediction technology was carried out using monitoring data, and a safety operation risk assessment model was established to achieve rapid identification and accurate prediction and warning of hidden dangers. At the same time, a monitoring, early warning, and risk assessment system has been constructed and demonstrated to be highly accurate and practical in pilot verification. In addition, through the comprehensive application of physical models and numerical simulations, the influence of different ground surface settlements on the deformation of transmission line towers was explored, providing important references for improving the safety of transmission lines.
Theoretical investigation for the laser cooling of LuH+ molecular cation
Authors: Fan Qin , Zhang Qing , Wan Ming Jie , Huang Duo Hui
Published: October 2024

The potential energy curves and transition dipole moments of seven Λ-S states and six Ω states of LuH+ cation are calculated by using the multireference configuration interaction method plus Davidson correction with the pseudopotential electron basis set, and the spectroscopic parameters of the bound states are obtained. The spin–orbit coupling effect is considered in the calculations. The Franck–Condon factors (FCFs) and the Einstein spontaneous emission coefficients are obtained. The results indicate that the A2Δ3/2(ν′ = 0) ↔ X2Σ+1/2(ν″ = 0) and B2Π1/2(ν′ = 0) ↔ X2Σ+1/2 (ν″ = 0) transitions provide highly diagonally distributed FCFs. Spontaneous radiative lifetimes of A2Δ3/2 (ν′ = 0) and B2Π1/2 (ν′ = 0) excited states are both obtained. The cooling schemes of LuH+ cation are obtained using the ab initio method. For the B2Π1/2 ↔ X2Σ+1/2 transition, the influence of the intermediate state on the construction of quasi-closed cyclic transitions can be neglected. A main pump laser and two repumping lasers are required to construct the A2Δ3/2 ↔ X2Σ+1/2 and B2Π1/2 ↔ X2Σ+1/2 quasi-cycling transitions for laser cooling of LuH+ molecular cation. The results in this work provide reliable theoretical guidance for further experiments of laser cooling of LuH+ cation.
Composition and temperature dependent remanent polarization and coercive field in wurtzite AlScN ferroelectric memory materials
Authors: Martinez J. C. , Samanta Subhranu , Liu Chen , Zhu Yao , Loke Desmond K.
Published: October 2024

We investigate the Sc dependence and thermal sensitivity of Al1−xScxN with the aid of Landau–Devonshire free energy recently proposed for its wurtzite ferroelectric phase. In particular, we calculate compositional and temperature dependences of the remanent polarization and the coercive field. Because the polarization is strong, surface fluctuations of the polarization are expected; we examine the nature of these fluctuations. Strong correlation is expected as the ferroelectric phase gives way to the paraelectric phase.
Resupinate floral dimorphy in Chamaecrista nictitans (L.) Moench (Fabaceae-Caesalpinioideae)
Authors: Almeida Natan Messias , Cotarelli Vinicius Messas , Bezerra Thatiany Teixeira , Leite Ana Virgínia , Novo Reinaldo Rodrigo , Castro Cibele Cardoso , Machado Isabel Cristina
Published: October 2024

Context Resupination is the movement of developing buds that leads to a vertical inversion of the flowers at an angle of 180°. Chamaecrista nictitans exhibits two anther sizes, and nonresupinate and resupinate flowers in the same individual, which is known as monomorphic resupinate dimorphy. Aims We aimed to investigate the influence of monomorphic resupinate dimorphy upon pollen deposition on pollinators, capture by the stigma and on plant reproduction, using three populations of C. nictitans from NE Brazil as a model. Methods We assessed the floral biology, the proportion of nonresupinate and resupinate flowers in the populations, dynamics of pollen transfer between floral morphs, and the plant’s reproductive system. Key results All flowers have two anther sizes with similar pollen viability. The proportion of nonresupinate:resupinate flowers was 3:1 in all populations. The bee Florilegus (Euflorilegus) sp. was the only pollinator observed and had pollen of both flower morphs deposited on the underside part of the thorax and abdomen. The stigma of nonresupinate flowers received pollen from the pollinators’ underside of the abdomen, whereas the stigma of resupinate flowers received pollen from the pollinators’ underside of the thorax. The species is self-compatible but does not set fruits by spontaneous self-pollination. Therefore, natural fruit set had resulted from both intramorph- and intermorph-pollination in the same or in different individuals. Conclusions Both flower types have a similar pattern of pollen deposition on the pollinator’s body (underside of the abdomen and thorax) and only differ in relation to areas of pollen capture by the stigma (underside of the abdomen or underside of thorax). Implications The monomorphic resupinate dimorphy observed here improves the area of pollen deposition by the anthers on pollinator’s body and makes the capture of pollen by stigma sectored in the different floral types, similar to what is observed in other species presenting floral polymorphisms.
Extractant efficacy in assessing bioavailable phosphorus in tropical soils fertilised with alternative sources and cultivated with maize
Authors: de Sousa Rodrigo Nogueira , Alleoni Luís Reynaldo Ferracciú
Published: October 2024

Context Phosphorus (P) is a vital element for plant growth across all soil types. In highly weathered soils, P levels are frequently insufficient, with detrimental impacts on plant development and crop yields. There are various methods to analyse soil P availability, each providing unique insights into its availability and dynamics under different soil conditions. Aims Our objective was to systematically evaluate the effectiveness of different P extractants in quantifying the available P in two soil types with contrasting textures. Additionally, the influence of different P fertilisers on the extraction efficiency of these extractants was assessed. Methods Three extraction methods were evaluated to predict plant-available P: resin, Mehlich-1, and Mehlich-3. A sandy loamy and a clayey soil were amended with organomineral, struvite, thermophosphate, and triple superphosphate under greenhouse conditions, and two successive maize crops were grown. Key results The resin method had the highest correlation with plant P uptake, showcasing its effectiveness for highly weathered soils. Mehlich-1 and Mehlich-3, however, seemed to overestimate P values, likely because they dissolved soil minerals and organic matter, and released P bound to colloid surfaces. Conclusions Extractant efficiency varied depending on the P fertiliser source applied. Additionally, lime rates affected extractant performance, especially Mehlich-1, due to interactions between acid P extractants and calcium-bound P. Implications This study underscores the importance of selecting the appropriate P measurement method for effective agricultural management and environmental conservation.
Review of approaches and challenges for the validation of satellite-based active fire products in savannah ecosystems
Authors: Ramsey Simon , Jones Simon , Reinke Karin
Published: October 2024

Satellite remote sensing is a critical tool for continental and synoptic monitoring and mapping of savannah wildfires. Satellite active fire products, which report on the time and location of a fire and may further characterise fire by estimating fire radiative power (FRP), provide valuable utility for savannah fire management and carbon accounting. These applications require that satellite measurements are of high accuracy, which can only be determined through validation. However, acquiring reference data for validation that is a representative of the fire conditions at the time of satellite image capture is challenging, due to rapid changes in fire behaviour and the inherent safety considerations of collecting field data during fire events. This review explores traditional and contemporary methods used to assess the accuracy and consistency of fire detections and FRP derived from satellite data in savannah ecosystems, with a focus on the approaches and challenges in collecting suitable reference data for a phenomenon as dynamic, ephemeral, and hazardous as wildfire. From this synthesis, we present generalised frameworks for the validation and intercomparison of satellite active fire products within savannah ecosystems.
Persuasion and critical-theoretical thought
Authors: Mitrano Mena
Published: October 2024

Literary scholars have increasingly moved away from the hermeneutics of suspicion, on the ground that this
once-dominant axis of reflection uniting Nietzsche, Marx, and Freud and culminating with deconstruction and poststructuralism,
has been reduced to an ineffectual set of standardized rhetorical gestures with the sole purpose of debunking and demystifying
(R. Felski 2015; R. Felski and E. Anker 2017). In such a postcritical climate, this article explores the link between
persuasion and the pursuit of knowledge in the Humanities through three theoretically charged close readings (Jane Austen,
Michel Foucault, Eve K. Sedgwick). Discussion takes its cue from the implications of persuasion as a rhetorical tenet and goes
on to trace its transformation, first in connection with the rise of discourse, and secondly in connection with the ethical
turn in critical inquiry. Ultimately, the article suggests that the traditional tension between truth and persuasion has taken
on new life in the polarity of the cognitive and the affective dimensions of knowledge.
Argumentation in scientific discourse
Authors: Roncoroni Tiziana
Published: October 2024

This pilot study investigated scientific argumentation from a pragma-dialectical methodological approach with the
aim of characterizing possible prototypical argumentative patterns by reconstructing argumentation structures, and identifying
and analyzing the standpoints, arguments, starting points, and strategies. The results corroborated the findings of previous
studies regarding the complexity of standpoints, structures, and patterns, the dialogical nature attained by advancing doubts
and criticism, and the important role of exploratory argumentation (comparing and evaluating options). New insights also
emerged: Causal argumentation appeared to play a more pervasive role than was previously assumed, which was supported by
different subtypes of argument schemes. Furthermore, scientific argumentation proved to be indirect but strong, with
standpoints that were not predominantly descriptive, and weighing was used strategically.
Pink rollers and fake tan
Authors: Montiel-McCann Camila , Lampropoulou Sofia , Cooper Paul , Byrne Rachel
Published: October 2024

Scouse and Scousers are highly recognisable within the UK, with research revealing longstanding associations with
white, urban, working-class male speakers. However, Scouse identity is increasingly associated with a feminine persona: the
Scouse bird. Research thus far focuses on recognisable gendered practices of this Scouse feminine identity
but has not yet explored the link of such practices with dialect and class. This paper seeks to extend current research by
analysing the enregisterment of the Scouse bird on Twitter and in interviews with participants from the Wirral. We take an
intersectional approach that factors on gender as a crucial component to understanding the representation of enregistered dialect
and class. We propose that the Scouse bird persona may achieve popularity online precisely because of her gender incongruence,
which can be viewed as defiance against gender expectations and class hierarchies. We conclude that there are multiple
enregistered and intersecting repertoires embedded into the online and offline representation of the Scouse bird, that encompass
dialect, (white, working-)class and counterhegemonic femininity.
Intercultural encounters through two picturebooks in the lower primary EFL classroom in Denmark
Authors: Søgaard Karoline
Published: October 2024

Intercultural encounters are important sites for intercultural learning. Hence the teaching of English as a
foreign language should include possibilities for learners to engage in such encounters. It is theoretically suggested and
empirically supported, that encounters with texts and images can be fruitful for intercultural learning. Picturebooks constitute
one form of literary text that is suitable for teaching foreign languages to children. This study suggests that purposefully
selected picturebooks can create affordances for intercultural encounters in the early English as a foreign language classroom,
thus contributing to intercultural learning from an early age. Selected learner data collected in a qualitative multiple case
study with learners from 8 to10 years old, interacting with two English language picturebooks, were analyzed using deductive,
qualitative content analysis. The analyses showed that learners displayed awareness of several intercultural encounters with and
between characters in the picturebooks, especially encounters that included the two child protagonists. These encounters were
based on multiple cultural group affiliations, including affiliations based on a more traditional as well as an extended view of
culture, which included non-human groups. It is concluded that, based on a non-essentialist view of culture, the selected
picturebooks and their teaching sequences created affordances for learners’ awareness of different cultural affiliations, which is
considered a prerequisite for engagement in intercultural encounters.
Short-term diachronic and variety-internal approaches to textual functionality in South Asian
Englishes
Authors: Bernaisch Tobias , Leuckert Sven
Published: October 2024

To empirically trace functional characteristics of texts such as speaker/writer involvement, narrativity or
persuasiveness with a view to potential (a) intra-national variability in Indian English and (b) short-term diachronic
change in South Asian Englishes, the South Asian Varieties of English (SAVE) corpus,
its updated version SAVE2020, and the Corpus of Regional Indian Newspaper Englishes
(CORINNE) are subjected to Multidimensional Analysis (MDA, Biber 1988) as implemented in Nini (2019). A hierarchical
cluster analysis of the respective MDA scores reveals the tendency of mesolectal Indian Englishes as well as
acrolectal Bangladeshi and Sri Lankan English to employ features of a conceptually written nature more readily than
acrolectal Indian, Maldivian, Nepali, and Pakistani English. Still, in the observed time span of 15 years, the
acrolects of South Asian Englishes also develop towards conceptually written language.
Managing expectations
Authors: Ma Giovanni Chun Long , Mansfield John
Published: October 2024

One of the central goals of human language is to convey intended messages successfully to the addressee. However,
communication inherently involves uncertainty or unexpectedness which hinders this delivery. Different languages have different
strategies to manage unexpectedness. In this article, we explore the strategies used in Murrinhpatha, an Australian Aboriginal
language with highly flexible syntax, that is, free constituent order and frequent NP omission. We argue that Murrinhpatha
speakers utilise the language’s syntactic flexibility to manage referential expectations. Highly unexpected referents tend to be
expressed preverbally, while expected referents which need to be ‘reinforced’ are usually expressed postverbally. Uniquely
expected referents are usually syntactically omitted. We argue that expectation and uncertainty provide a more convincing account
of Murrinhpatha compared to an account of accessibility. Our findings shed new light on several aspects of syntactically flexible
languages, including pragmatic salience and newsworthiness, and the functional distinction between postverbal NPs and NP
omission.
Fabrication of large scale bi-layer microstructures through electrochemical nanoimprinting
Authors: Hong Ran , Chen Bo , Liu Jing , Huang Qiyu
Published: October 2024

Electrochemical nanoimprinting (ECNI) is a microstructure fabrication technique that combines metal-assisted chemical etching (MaCE) with nanoimprint lithography. A significant advantage of ECNI over traditional MaCE is the reusability of the stamp and excellent pattern consistency. This work studies the effects of various etchant components on etching results, discussing the associative parameters separately. Experimental results demonstrate that ECNI successfully fabricates bi-layer microstructures with flat surface morphology, where the second layer has a feature size of 40 μm and a depth of 12.5 μm. These findings highlight ECNI’s potential as a scalable method for producing complex multi-layer structures, positioning it as a promising solution for large-scale microfabrication of semiconductors.
Measurement-induced heating of a trapped ion
Authors: Rasmusson A J , Jung Ilyoung , Schroer Frank G , Kyprianidis Antonis , Richerme Philip
Published: October 2024

We experimentally study the heating of trapped atomic ions during measurement of their internal qubit states. During measurement, ions are projected into one of two basis states and discriminated by their state-dependent fluorescence. We observe that ions in the fluorescing state rapidly scatter photons and heat at a rate ofn¯˙≳2×104quanta s−1, which is orders of magnitude faster than typical anomalous ion heating rates. We introduce a quantum trajectory-based framework that accurately reproduces the experimental results and provides a unified description of ion heating for both continuous and discrete sources.
All-optical switch for input-output-independent logic gate construction in atomic systems
Authors: Zhang Yiming , Li Leyu , Liu Jia , Xu Yiming , Li Shenwei , Xie Zhiwen , Li Aijun
Published: October 2024

We propose an input–output independent logic gate via optical switching effect in a four-level tripod atomic model. The intensity, line shape and detuning of the probe field and the switching field of the switch are investigated. Unlike previous research on all-optical switches, there are two switching fields as inputs and one probe field as output in this model. This enables an ‘or’ logic gate in which the input and output can be controlled independently. Thus, we can control the output ‘on’ and ‘off’ through two switching fields and freely adjust the strength of the output without changing the switching field. By adjusting the coherence conditions, ideal optical switching phenomena such as higher switching efficiency and larger switching speed are realized, which provides new ideas for designing optical communication or optical gain devices.
Theoretical study of point defects on transport properties in metallic interconnections
Authors: Yan Shumin , Gao Ruiling , Hu Shunbo , Wang Yin
Published: October 2024

During the line width reduction, electron scattering caused by various defects in metal interconnects increases dramatically, which causes leakage or short circuit problems in the device, reducing device performance and reliability. Point defects are one of the important factors. Here, using density functional theory and non-equilibrium Green’s function methods, we systematically study the effects of point defects on the transport properties of metals Al, Cu, Ag, Ir, Rh, and Ru, namely vacancy defects and interstitial doping of C atom. The results show that the conductivity of all systems decreases compared to perfect systems, because defects cause unnecessary electron scattering. Since the orbital hybridization of the C atom with the Al, Cu and Ag atoms is stronger than that metals Ir, Rh and Ru, the doping of C atom significantly reduces the conductivity of metals Al, Cu and Ag compared to vacancy defects. In contrast, vacancy defects have a greater impact than doping on the transport properties of metals Ir, Rh and Ru, which is mainly attributed to the larger charge transfer of the host atoms around the vacancies caused by lattice distortion. In addition, metal Rh exhibits excellent conductivity in all systems. Therefore, in order to optimize the transport properties of interconnect metals, our work points out that the doping of impurity atoms should be avoided for metals Al, Cu and Ag, while the presence of vacancy defects should be avoided for metals Ir, Rh and Ru, and Rh may be an excellent candidate material for future metal interconnects.