bluuebunny/crossref_metadata_2025_split huggingface dataset:
Corona current and audible noise characteristics of HVDC transmission lines and their relationship at high‐altitude
Authors: Zhao Luxing , Xie Li , Liu Chao , Gao Lei , Qu Jia , Zhang Hengzhi , Liu Yingyi 
Published: March 2023

AbstractThe audible noise (AN) of HVDC transmission lines, as an external manifestation of the corona discharge, intensifies with the increase of altitude. In high‐altitude area, the AN has been a key factor in determining the type of conductors for transmission lines. In order to study the characteristics of corona current and AN of HVDC transmission lines at high‐altitude, we erected a HVDC test line at an altitude of 4300 m, and carried out AN and corona current tests under different voltages. Through the test, the basic data of AN and corona current of HVDC test line at high‐altitude were obtained. Based on the corona current curve, the corona inception electric field strength of the conductor was proposed. The relationship between the equivalent A‐weight sound level and the high‐frequency noise component was clarified. The relational expression of the AN and corona current for the HVDC test line were suggested. The research results show that, there is a relatively fixed difference of about 7–8.3 dB between the equivalent A‐weight sound level and the 8 kHz sound pressure level at altitude 4300 m, and a clear logarithmic relationship between the equivalent A‐weight sound level and the average value of the corona current.
A generative adversarial network model fused with a self‐attention mechanism for the super‐resolution reconstruction of ancient murals
Authors: Cao Jianfang , Hu Xiaohui , Cui Hongyan , Liang Yunchuan , Chen Zeyu 
Published: March 2023

AbstractThe problem that the texture details of low‐resolution (LR) digital images of ancient murals are ambiguous persists. To solve this problem, this study proposes a super‐resolution (SR) reconstruction method for fuzzy murals based on a generative adversarial network with self‐attention (SA). The network uses a blur kernel and realistic noise data to add blur and noise, respectively, to a high‐resolution (HR) image to obtain an original LR image. Then, a feature image with the same size as that of the input image is obtained through a SA module. Finally, the feature information extracted from the image is input into the high‐resolution image space by using a subpixel convolution layer to realize the image enlargement process from an LR to an HR. Experiments evaluate the proposed approach both objectively and subjectively. The objective evaluation results show that compared with other SR reconstruction algorithms, the proposed algorithm's peak signal‐to‐noise ratio (PSNR) is increased by 0.04 to 3.78 dB on average, and its structural similarity is increased by 0.002 to 0.191. A subjective perception evaluation shows that the developed algorithm can better reconstruct the texture details of murals, thus better meeting the visual perception needs of the public. The method proposed in this study can satisfactorily reconstruct the texture details of murals, which may provide technical guidance for the development of mural protection plans. Furthermore, it may be of certain practical significance for the SR reconstruction of ancient murals.
Multilevel receptive field expansion network for small object detection
Authors: Liu Zhiwei , Gan Menghan , Xiong Li , Mao Xiaofeng , Que Yue 
Published: March 2023

AbstractSmall object detection remains a bottleneck because there is little visual information about them, especially in the deep layers. To improve the detection performance of small objects, here, Swin Transformer is introduced as the model backbone network to extract rich features of small objects. Then, a multilevel receptive field expansion network (MRFENet) is proposed based on the characteristics of different stages in the Swin Transformer. Specifically, a receptive field expansion block (RFEB) is designed to acquire contextual cues and extract detailed information. The RFEB is carefully designed to target the required receptive fields of different layers and further refine the features. MRFENet combined with RFEBs implements the retention of small object context cues and the acquisition of receptive fields for the adaptive detection tasks. Finally, a union loss function is designed to enhance the localization ability. Experiments on the MS COCO dataset demonstrate that the proposed MRFENet has a significant improvement against other state‐of‐the‐art methods, which further validates that MRFENet can effectively utilize small object information.
Pedestrian reported activity and information preference while waiting at a red light
Authors: Liu Meng , Zhuang Xiangling , Wu Changxu , Ma Guojie 
Published: March 2023

AbstractThe development of pedestrian signal lights made it a promising information center to distribute information to assist safe road crossing and provide “controlled engagement” to improve waiting experience. To determine what types of information to display, this study surveyed 555 pedestrians on frequency of their existing activities while waiting at a red light and preference of several types of information based on results of a structured interview. Pedestrian reported 14 types of activities, from which the four categories with decreasing frequency were extracted based on factor analysis: scene perception, recreation, mental activity, and anxiety activity. The participants reported more mental and anxiety activity have higher need for external displayed information on signal lights. Overall, among the four information categories extracted from 24 specific information types with factor analysis, pedestrians preferred road crossing and contextual information the most, with less preference on learning and appreciation information. The least preferred information is entertainment information, within which they even disliked entertainment news and general commercial ads (

vs. local ones). There are also individual differences in preference for these information categories. The findings have implications on information design for the roadside signal lights as well as advanced traveller information system in general.
Möglichkeiten und Grenzen der Arthroskopie des rheumatischen
Handgelenkes
Authors: Gaulke Ralph 
Published: March 2023

ZusammenfassungDie arthroskopische Synovialektomie am Knie-, Schulter-, Ellenbogen- und oberen
Sprunggelenk hat in der operativen Therapie entzündlich-rheumatischer
Erkrankungen trotz verbesserter medikamentöser Therapie weiterhin eine
überragende Bedeutung in Bezug auf den Gelenkserhalt bei
therapieresistenter Synovialitis. Das Handgelenk und distale Radioulnargelenk
bilden zusammen 3 Gelenkräume, welche bei der Arthroskopie zu
adressieren sind. Arthroskopisch kontrollierte perkutane Teilversteifung am
Handgelenk haben den Vorteil geringerer periartikulärer Vernarbung. Eine
Immobilisation ist nach der Schraubenarthrodese im Gegensatz zur offenen
Plattenarthrodese obligat. Die totale Synovialektomie sowie arthroskopische
Teilarthrodesen sind technisch sehr anspruchsvoll und sollten daher erfahrenen
Handgelenkarthroskopeuren vorbehalten bleiben.
Emergency Point-of-Care Ultrasound Stewardship – A Joint Position Paper by EuSEM and EFSUMB and Endorsed by IFEM and WFUMB
Authors: Osterwalder Joseph , Tabakovic Senad , Jenssen Christian , Dietrich Christoph F. , Connolly Jim , Polyzogopoulou Effi , Cantisani Vito , Wüstner Matthias , Jarman Bob , Hoffmann Beatrice 
Published: March 2023

AbstractEmergency Medicine Point-of-Care Ultrasound (EMPoCUS) is a convincing concept. It has spread rapidly because of its intuitive, simple applicability and low equipment costs. The speed of its emerging growth frequently outpaces the development of quality assurance and education. Indeed, education standards vary worldwide, and in some cases seem to neglect the principles of modern competence-based education. Additional challenges are encountered such as remote or low resource medical practice. Here, EMPoCUS might be the only ad-hoc imaging modality available. Once mastery of EMPoCUS is achieved, emergency physicians should be able to independently and efficiently care for their patients using a variety of PoCUS skills. However, most curricula only define these tasks as non-binding and in general terms or use outdated measures, such as length of training and self-reporting of achieved examinations with variable oversight, or administrative measures to create educational milestones. This threatens to take quality assurance down the wrong path. It created a scenario in which concrete EMPoCUS skill outcome measures that would realistically reflect the training objectives and simultaneously would be easily observable and verifiable are lacking. In view of the dangers of poorly controlled EMPoCUS dissemination and the current lack of European guidelines, we would like to set central standards for European EMPoCUS stewardship based on a critical review of the current situation. This position paper, which was jointly developed by EuSEM and EFSUMB and endorsed by IFEM and WFUMB, is also intended to accompany the EFSUMB/EuSEM guidelines on PoCUS currently being prepared for publication.
Embracing the Imperfectness of Nature using Highly Reactive N-Acyl Azahexatrienes
Authors: Zheng Kuan , Hong Ran , Zhang Bingbing 
Published: March 2023

AbstractIncredible examples of controlling highly reactive functional groups to synthesize amazing architectures can be found in nature. N-Acyl azahexatriene, which is involved in biosynthesis, is clearly among them, despite the extremely limited number of examples disclosed in the literature. We explored the biomimetic synthesis of macrocarbocyclic natural products, chejuenolides A–C, as well as structural variants, to unveil the hidden stereochemical relationships between their biosynthesis and those of lankacidin antibiotics. This revealed the logic of the reaction pattern, which was likely influenced by catalytic promiscuity in nature.
Recent Advances in the Synthesis and Application of C-2-Formyl Glycals
Authors: Arora Aditi , Kumar Sumit , Chhatwal Rajni Johar , Kumar Sandeep , Khatri Vinod , Prasad Ashok K. 
Published: March 2023

Abstract
C-2-Formyl glycals have sustained interest in carbohydrate chemistry as they afford valuable chiral building blocks for many biological-, pharmaceutical-, and industrial-based important molecules. Basically, C-2-formyl glycals are a class of carbohydrates incorporating an α,β-unsaturated aldehyde. Therefore in many organic reactions, the C-2-formyl glycals can serve as an α,β-unsaturated aldehyde core. In this review, we have compiled a literature survey covering the period 2013–2022, on the synthesis of C-2-formyl glycals and further discuss their importance for the synthesis of many medicinal, supramolecular, biological, organic, and material chemistry based molecules.1	Introduction2	Synthesis of C-2-Formyl Glycals2.1	Vilsmeier–Haack Formylation2.2	By Consecutive Cyclization2.3	XtalFluor‑E Based Synthesis3	Applications of C-2-Formyl Glycals3.1	C-2-Formyl Glycals as a Synthons3.2	Anticancer3.3	Anti-inflammatory3.4	Antimicrobial3.5	Glycosidase Inhibitors3.6	Miscellaneous4	Conclusion and Future Aspects
Negotiating body and power in forensic mental health care
Authors: Repo Virve , Kymäläinen Päivi 
Published: March 2023

AbstractSince the beginning of the 2000s, the reduction of coercive methods has been a tendency in psychiatric care in Finland. Combined with the transforming ideas of healing, the reduction has changed practices in the institutions of forensic mental health care, by encouraging efforts to increase self-determination and individual responsibility. This article addresses the coexistence of the previous and current bodily regimes, and the resulting complex and contested spatial and bodily arrangements. We combine the discussions on biopower and bodily regimes in our analysis of the practices and negotiations related to the alternative methods to coercion (special observation and restricting garments), mundane practices (eating and exercising), and negotiations related to touch and sexuality. As our study shows, bodily regimes and care practices are constantly under negotiation, during which there may be inconsistences in what is or is not allowed. Moreover, what seems to be a positive tendency towards increased self-determination has led to new forms of pressure, resulting from the increased possibility to protest by using one’s own body (e.g. by ignoring hygiene), or from the diminishing self-determination of the nurses (e.g. during special observation).
Polarity reversal constructions and counterfactuals in Ancient Greek
Authors: la Roi Ezra 
Published: March 2023

Abstract
Polarity reversal has recently been argued to be the defining characteristic of counterfactuality. Ancient Greek
had a diverse set of constructions which bring about polarity reversal that is not the direct result of a negation marker nor do
they all express a counterfactual meaning. It is the aim of this paper to detail the major differences between these constructions
synchronically and especially diachronically, focusing on counterfactual mood forms, counterfactual modal verbs, avertives
(almost+past (im)perfective), non-counterfactual rhetorical questions and non-standard wishes. As a historically varied
constructional group, these constructions bring about polarity reversal in different ways with different implicatures (e.g.,
counterfactual, contradictory, undesirable), but they most importantly differ in their diachronic conventionalization of polarity
reversal. Whereas counterfactuals conventionalize their polarity reversal in various ways (e.g., changing temporal reference,
counterfactual implicature transfer), non-counterfactual polarity reversal constructions create polarity reversal as a synchronic
implicature through pragmatic means (e.g., a rhetorical question identifying a contradictory presupposition in the common ground
or a non-standard wish evaluating an undesirable outcome to the speaker).
Regular polysemy and novel word-sense identification
Authors: Lombard Alizée , Huyghe Richard , Barque Lucie , Gras Doriane 
Published: March 2023

AbstractThis study examines speakers’ intuitions about novel word senses created through regular polysemy patterns. We investigate the effect of scalar regularity and lexical figure (metaphor vs. metonymy) on the identification of novel word senses, based on a detection experiment. It is shown that the more regular a polysemy pattern is, the less salient are the novel senses it produces, and that metaphorical patterns derive more salient novel senses than metonymic patterns. These results provide insights into the processing of novel word senses and support a non-homogeneous mental representation of regular polysemous words.
Learning how to request in German during stay abroad
Authors: Kaltschütz Denise 
Published: March 2023

AbstractThis study examines the request development of eight UK-based students during their stay abroad (SA) year in Germany or Austria. Open-ended roleplays were used to elicit 144 requests before, during, and after SA, and to track the development of external and internal request-mitigation strategies and deictic orientation. Semi-structured interviews and a language-engagement questionnaire were carried out to determine which contextual factors most influenced students’ pragmalinguistic development during SA. Participants mainly used conventionally indirect hearer dominant request strategies pre-sojourn. Whilst abroad, sojourners’ requests became more direct and mostly speaker dominant, whilst participants increasingly favored external mitigation strategies and, to a lesser extent, use of the internal-mitigation strategy upgrader. Of the factors hypothesized to be influential in their acquiring pragmalinguistic competence, participants’ awareness of differences in linguistic politeness, followed by their sense of identity in the host community and degree of interaction with the host community, influenced pre- to in-sojourn pragmalinguistic changes the most.
Studying abroad during and before the COVID-19 pandemic
Authors: Arvidsson Klara 
Published: March 2023

Abstract
The study abroad (SA) context is assumed to be ideal for second language (L2) learning because of the
opportunities it provides to use the target language (TL) and to socialize with TL speakers. Although research conducted before
the COVID-19 pandemic generally confirms this assumption, little is known about how the COVID-19 pandemic modified conditions for
L2 learning in a SA context. This study contributes by documenting Swedish French language students’ patterns of TL use and
perceived linguistic progress in a SA context in France during the COVID-19 pandemic (spring 2021) and compares these data with
data from an equivalent group of Swedish French language students who studied in France before the pandemic. The results suggest
that the SA context provided advantageous learning conditions even during the pandemic.
Structural Drivers of Vulnerability at the Human-Rodent Interface in the Limpopo National Park, Mozambique
Authors: Figuié Muriel , Mapaco Lourenço , Caron Alexandre , Hofisso Leonardo , Gomes-Jaintilal Iara , Cappelle Julien 
Published: March 2023

Abstract
This socio-anthropological study investigates the relations between humans and rodents in an area adjacent to the Limpopo National Park in Mozambique. Designed as part of the larger researcher on mammarenaviruses, it explores the social dimensions of the rodent-human interface, considering its spatial and temporal variability. Its results contribute to our understanding of the socio-ecological context in which new pathogens or new routes of pathogen transmission could arise and potentially spread diseases. A vulnerability-based approach was used to assess human exposure, sensibility and capacity to adapt to rodents. This study revealed: (i) Local knowledge of the dynamic of rodent populations over the last few decades, with new invasive rodents displacing native species; (ii) the social-ecological factors thought to be behind this invasion: climate change, new infrastructure (e.g., construction of a dam), new agricultural practices (e.g., cultivation of sunflowers) and policies (human resettlement); (iii) the significant impact associated with new invasive rodents (e.g., crop losses, damage to belongings), the limited capacity for individual and collective interventions to mitigate damage, and the little concern shown for rodent-related diseases; (iv) women and girls’ high vulnerability to potential rodent-borne diseases due to frequent direct and indirect contact with rodents in the domestic space; and (v) the added-value of using a vulnerability-based methodology, over the more commonly used Knowledge-Attitudes-Practices (KAP) methodology, to map the structural factors shaping the human-rodent interface and its dynamic. Our findings suggest that the vulnerability-based approach could offer an opportunity to better respond to the One Health ambition by integrating social dimensions of health and grasping the complexity of the social and material context in which new pathogens could emerge and spread.

One Health Statement
The present socio-anthropological study of the human-rodent interface comes in complement to a previous eco-epidemiological survey focusing on the rodent-virus interface. It explores the cultural and social dimensions of the interactions between rodent-human, considering spatial and temporal variability. In doing so, it contributes to the understanding of the socio-ecological dynamic, in which new viral transmission can occur and disease spread. It exemplifies, based on local knowledge, how socio-ecological changes can create new routes for the emerging virus and highlights the vulnerability of the exposed human population to address the potential related health risks. This multidisciplinary and dynamic approach of how humans and rodents interact, and how these interactions are shaped by their changing environment is a contribution to a systemic approach to health, in line with the One health paradigm.
Effect of electron- and hole-doping on properties of kagomé-lattice ferromagnet Fe3Sn2
Authors: Adams Milo , Huang Chen , Shatruk Michael 
Published: March 2023

Abstract
We report a theoretical investigation of effects of Mn and Co substitution in the transition metal sites of the kagomé-lattice ferromagnet, Fe3Sn2. Herein, hole- and electron-doping effects of Fe3Sn2 have been studied by density-functional theory calculations on the parent phase and on the substituted structural models of Fe3−x
M
x
Sn2 (M = Mn, Co; x = 0.5, 1.0). All optimized structures favor the ferromagnetic ground state. Analysis of the electronic density of states (DOS) and band structure plots reveals that the hole (electron) doping leads to a progressive decrease (increase) in the magnetic moment per Fe atom and per unit cell overall. The high DOS is retained nearby the Fermi level in the case of both Mn and Co substitutions. The electron doping with Co results in the loss of nodal band degeneracies, while in the case of hole doping with Mn emergent nodal band degeneracies and flatbands initially are suppressed in Fe2.5Mn0.5Sn2 but re-emerge in Fe2MnSn2. These results provide key insights into potential modifications of intriguing coupling between electronic and spin degrees of freedom observed in Fe3Sn2.
Volumetric flame reconstructions in an optical engine cylinder involving refraction and blockage
Authors: Gao Yu , Ling Chen , Wu Yue , Wu Haifeng , Men Wenqi 
Published: March 2023

Abstract
Practical applications of computed tomography (CT) in optical engines require an advanced algorithm that can correct the light refraction via optical windows and reconstruct the 3D signal field partially blocked by structural obstacles. In this work, an advanced CT algorithm is designed for optical engines to simultaneously eliminate the imaging distortion by refraction and diminish the reconstruction errors using partial signal blocking. By combining the pinhole model and Snell’s law, the ray tracings from discretized 3D voxels in the measurement domain to 2D pixels in the imaging planes are accurately calculated, thus restoring the distortion in recorded projections. Besides, by deciding the locations and numbers of voxels that actually participate in iterative CT calculation, the iterative update process of voxel intensity becomes independent of the blocked rays, reducing the reconstruction errors. The algorithm is then numerically validated by reconstructing a simulated signal phantom inside an optical cylinder with a lightproof obstacle between the phantom and a recording camera, which imitates the refraction and blocking conditions in practical optical engines. Moreover, experimental demonstration is performed by reconstructing practical premixed flames inside optical engines. Both the simulation and the experiment present significantly enhanced flame chemiluminescence reconstruction by applying the optimized CT algorithm compared to the original algorithm utilized in open space applications.