bluuebunny/crossref_metadata_2025_split huggingface dataset:
Observations of the new meteor shower from comet 46P/Wirtanen
Authors: Vida D. , Scott J. M. , Egal A. , Vaubaillon J. , Ye Q.-Z. , Rollinson D. , Sato M. , Moser D. E. 
Published: February 2024

Context. A new meteor shower λ-Sculptorids produced by the comet 46P/Wirtanen was forecast for December 12, 2023. The predicted activity was highly uncertain, but generally considered to be low. Observations in Australia, New Zealand, and Oceania were solicited to help constrain the size distribution of meteoroids in the shower.
Aims. This work aims to characterize the new meteor shower, by comparing the observed and predicted radiants and orbits, and to provide a calibration for future predictions.
Methods. Global Meteor Network video cameras were used to observe the meteor shower. Multi-station observations were used to compute trajectories and orbits, while single-station observations were used to measure the flux profile.
Results. A total of 23 λ-Sculptorid orbits have been measured. The shower peaked at a zenithal hourly rate (ZHR) of 0.65−0.20+0.24 meteors per hour at λ⊙ = 259.988° ±0.042°. Due to the low in-atmosphere speed of 15 km s−1, the mean mass of observed meteoroids was 0.5 g (∼10 mm diameter), an order of magnitude higher than predicted. The dynamical simulations of the meteoroid stream can only produce such large meteoroids arriving at Earth in 2023 with correct radiants when a very low meteoroid density of ∼100 kg m−3 is assumed. However, this assumption cannot reproduce the activity profile. It may be reproduced by considering higher density meteoroids in a larger ecliptic plane-crossing time window (ΔT = 20 days) and trails ejected prior to 1908, but then the observed radiant structure is not reproduced.
Comparative performance of ISAGA IgM and ELISA assays for the diagnosis of maternal and congenital Toxoplasma infections: which technique could replace ISAGA IgM?
Authors: Deleplancque Anne-Sophie , Fricker-Hidalgo Hélène , Pomares Christelle , L’Ollivier Coralie , Lemoine Jean-Philippe , Cimon Bernard , Paris Luc , Houzé Sandrine , Villena Isabelle , Pelloux Hervé , Villard Odile 
Published: February 2024

The ISAGA immunocapture test for the detection of anti-Toxoplasma immunoglobulin M is a manual technique known for its excellent sensitivity and specificity. The purpose of this retrospective, multicenter study was to compare the performances and agreement between ISAGA and other IgM detection techniques before cessation of ISAGA production. The analytic performance of the different tests was evaluated using 1,341 serum samples from adults with positive IgM and negative IgG to Toxoplasma gondii, and 1,206 sera from neonates born to mothers with seroconversion. The agreement between the tests was evaluated on 13,506 adult and 5,795 child serum samples. The sensitivity of Toxo-ISAGA IgM® (adults 98.7%, neonates 63.1%) was similar to that of Platelia Toxo IgM® (adults 94.4%, neonates 64.6%), and significantly higher than Liaison Toxo IgM® (adults 90.6%), Architect/Alinity Toxo IgM® (adults 95.7%, neonates 48.6%), and Vidas Toxo IgM® (adults 81.8%, neonates 17.5%). However, the specificities varied between 24.4% (Platelia Toxo IgM®) and 95.2% (Liaison Toxo IgM®) in adults and were >95% for all tests in neonates. An analysis of the kappa coefficients showed better agreement between ISAGA IgM® and the other tests in children (0.75–0.83%) than in adults (0.11–0.53%). We conclude that, in the absence of Toxo-ISAGA IgM®, the association of a very sensitive technique (Platelia Toxo IgM® or Architect/Alinity Toxo IgM®) and a very specific technique (Vidas Toxo IgM® or Liaison Toxo IgM®) is recommended for IgM detection in adult sera. For neonates, Platelia Toxo IgM® appeared to be the best alternative to replace Toxo-ISAGA IgM®.
Accessing Reactive Metal Hydrides through Designed Heterometallic Bridges
Authors: Shoshani Manar M. , Gonzalez Fernando , De Leon Edgardo 
Published: February 2024

AbstractA methodology to access reactive hydride moieties is highly desirable, yet limited. Multimetallic hydride fragments are notable for their heightened reactivity and catalysis, but deliberate access to these species is lacking. In this highlight, we discuss recent developments by our group in the design of a new heterometallic complex that invokes an architecture designed to provide modular access to reactive hydride moieties by leveraging metal hydrides in combination with pendent donors to a model heterotrimetallic Ni–(Al–H)2 complex. An amplification of insertion-based reactivity has been examined in the hydrofunctionalization of quinolines, and our complex substantially outperformed the parent aluminum hydride LAlH (L = ligand). A potential rationale for the dramatically increased reactivity, and a further examination of these motifs and methodology in catalysis are also discussed.1.	Introduction2.	Heterometallic Hydride Design and Characterization3.	Amplification in Catalysis4.	Summary and Outlook
Humeral Condylar Fractures in French Bulldogs—Inciting Cause and Factors Influencing Complications of Internal Fixation in 136 Dogs
Authors: Condon Anna , Keeley Ben , Midgley Duncan , Butterworth Steven , Schofield Imogen , Bright Steven 
Published: February 2024

Abstract
Objective To report the inciting cause and configuration of humeral condylar fractures in French Bulldogs, and to identify risk factors for complications associated with their surgical stabilization, as well as their occurrence.
Study Design Retrospective multicenter clinical cohort study.
Animals French bulldogs (n = 136) with humeral condylar fracture.
Methods Records from eight United Kingdom referral centers were reviewed for French bulldogs that underwent surgery for humeral condylar fracture between January 2017 and January 2021.
Results Lateral fractures of the humeral condyle represented two-thirds of condylar fractures in this study (95 elbows; 69.8%); medial fractures of the humeral condyle and intracondylar Y or T fractures affected 22 (16.2%) and 19 (14%), respectively. A fall was the inciting cause for 60 elbows (45.6%), with stairs implicated in 27 (20.45%) elbows. Skeletal immaturity was significantly correlated with fracture. Complications affected 30 out of 132 dogs (136 elbows) (22%), of which 10 (33%) were major, and 20 (66%) were minor. Fixation method did not significantly impact complication rate for medial or lateral fractures of the humeral condyle (p = 0.87). Comminution increased the risk of complication for all humeral condylar fracture types (p = 0.02).
Clinical Relevance Fixation method was not found to significantly impact the complication rate of surgically managed fractures of the humeral condyle in French bulldogs. Stair use, falling from low heights, and skeletal immaturity were common inciting reasons for humeral condylar fractures.
Comparison of Stress and Strain Distribution Patterns in Canine Implant and Maxillary Bone in Three Occlusal Schemes Using Finite Element Analysis
Authors: Fathi Amirhossein , Hoshyar Younes , Ebadian Behnaz , Ghorbani Mahsa 
Published: February 2024

Abstract
Objectives This study aimed to compare the pattern of stress and strain distribution in canine implant and maxillary bone in the anterior group function (AGF), posterior group function (PGF), and canine guidance (CG) occlusal schemes by finite element analysis (FEA).
Material and Methods In this in vitro experimental study, a dental implant (10 × 4.1 mm) was inserted at the site of the maxillary canine in a model of the maxilla in Mimics software. The implant was scanned three-dimensionally and the data were transferred to SolidWorks software. The von Mises stress, shear stress, deformation, and strain were calculated in the AGF, PGF, and CG occlusal schemes by FEA.
Statistical Analysis Data were analyzed by ABAQUS software to calculate the stress transferred to the canine implant and maxillary bone in the three occlusal schemes.
Results The maximum and minimum von Mises stress, elastic strain, shear stress, and deformation were noted in the AGF and PGF occlusal schemes, respectively, in all teeth.
Conclusion The PGF showed minimum von Mises stress, elastic strain, shear stress, and deformation in the canine implant and maxillary bone. Thus, it appears than the PGF is the best occlusal scheme for maxillary canine implant followed by the CG scheme.
Definition, Epidemiology, and Pathogenesis of Severe Community-Acquired Pneumonia
Authors: Cavallazzi Rodrigo , Ramirez Julio A. 
Published: February 2024

AbstractThe clinical presentation of community-acquired pneumonia (CAP) can vary widely among patients. While many individuals with mild symptoms can be managed as outpatients with excellent outcomes, there is a distinct subgroup of patients who present with severe CAP. In these cases, the mortality rate can reach approximately 25% within 30 days and even up to 50% within a year. It is crucial to focus attention on these patients who are at higher risk. Among the various definitions of severe CAP found in the literature, one commonly used criterion is the requirement for admission to intensive care unit. Notable epidemiological characteristics of these patients include the impact of acute cardiovascular diseases on clinical outcomes and the enduring, independent effect of pneumonia on long-term outcomes. Factors such as pathogen virulence, the presence of comorbidities, and the host response are important contributors to the pathogenesis of severe CAP. In these patients, the host response may be dysregulated and compartmentalized. Gaining a better understanding of the epidemiology and pathogenesis of severe CAP will provide a foundation for the development of new therapies for this condition. This manuscript aims to review the definition, epidemiology, and pathogenesis of severe CAP, shedding light on important aspects that can aid in the improvement of patient care and outcomes.
Evaluation of Canine Shoulder Arthroscopy for Anatomical and Safety Considerations
Authors: Kennedy Emily J. , Corriveau Kayla M. , Wilhite Ray 
Published: February 2024

Abstract
Introduction Arthroscopy is a well-established diagnostic modality for various orthopaedic conditions in veterinary medicine. The aim of this study was to describe the relationship of canine shoulder arthroscopy portals to major muscular, ligamentous, and neurovascular structures for anatomical and safety considerations.
Materials and Methods Arthroscopic exploration of 20 adult canine cadaver shoulders was performed. Each shoulder region was dissected layer by layer to the level of the joint. Musculotendinous, ligamentous, and cartilaginous lesions were documented. The distance was measured from each portal to neurovascular structures encountered.
Results Muscular lesions included the deltoideus, cleidobrachialis, omotransversarius, supraspinatus, infraspinatus, and teres minor muscles. The neurovascular structures identified were the omobrachial vein, the caudal circumflex humeral artery, axillobrachial vein, and branches of the axillary nerve. Lesions to the lateral glenohumeral ligament were noted from the caudal instrument portal and the middle arthroscope portal. Iatrogenic articular cartilage injuries were identified on the caudal humeral head and the glenoid.
Conclusion This study supports the safety of lateral shoulder arthroscopy in dogs. Most local neurovascular structures are unaffected with traditional scope portal positions. Musculotendinous lesions are unavoidable due to the extensive muscling surrounding the shoulder but are unlikely to cause severe complications postoperatively.
Surgical Rhinoplasty in Mild Forms of Body Dysmorphic Disorder: Safety, Protocols, and Long-Term Outcomes
Authors: Shandilya Munish , Bourke Stephanie , Shandilya Avi 
Published: February 2024

AbstractBody dysmorphic disorder (BDD) is an obsessive–compulsive disorder concerning body image which negatively distorts the patient's perception of their appearance. In rhinoplasty, surgery on patients with severe BDD is considered contraindicated as patients are often dissatisfied and their BDD symptoms rarely improve. For patients with borderline to mild BDD, however, there has been some preliminary evidence to show that they can benefit from surgical rhinoplasty. In our first article on this series of BDD in rhinoplasty, we presented our two-specialist protocol using mandatory psychiatric evaluation (MPE) to assess patient's suitability. In this present article, we used this protocol to identify a group of borderline to mild BDD patients, performed surgical rhinoplasty on this group, and evaluated the outcome using a visual analog scale (VAS) and a five-point Likert scale. From 2010 to 2023, 1,602 patients attended our practice seeking cosmetic rhinoplasty, out of which, 892 were sent for MPE to the same psychiatrist. The MPE identified 2.5% (22/892) patients as having mild BDD, out of which, 15 were considered suitable for surgical intervention and underwent successful rhinoplasty (follow-up 6–95 months, M = 54.13 months). Five of 15 patients scored 10/10 on the VAS and were very happy, 8 of 15 patients scored 7 to 9/10 on the VAS and were happy, and 2 of 15 patients scored 6/10 on the VAS but were still happy. Although all patients were happier, 3 of 15 patients requested revision rhinoplasty which was not offered as was planned and discussed before the initial intervention. This study shows that in the presence of safe protocols, including a two-specialist model, safe outcomes can be expected even in the long term. Further, the request for revision surgery appears to be common in borderline to mild BDD cases, and we like to warn the patients against it before surgery.
Intentional news avoidance on short-form video platforms: a moderated mediation model of psychological reactance and relative entertainment motivation
Authors: Zeng Runxi , Guo Siting , Evans Richard 
Published: February 2024

AbstractPrevious studies have identified a correlation between individuals’ perception of news quality and their intention to avoid political news. However, limited research exists that examines the mechanisms that mediate or moderate this relationship, particularly in the context of short-form video platforms. This study, using a sample of 523 active users of Douyin, a Chinese short-form video platform, addresses this gap by examining the mediating influence of psychological reactance and the moderating impact of relative entertainment motivation on the connection between perceived news quality and intentional news avoidance. The study finds that the negative association between perceived news quality and intentional news avoidance is mediated by psychological reactance, while both the direct effect of perceived news quality on intentional news avoidance, and the indirect effect through psychological reactance, are moderated by relative entertainment motivation. Specifically, these effects are stronger for individuals with high relative entertainment motivation. These findings suggest that if users possess high relative entertainment motivation, their psychological reactance and intentional news avoidance can be reduced if the quality of news improves. This study contributes to current understanding of users’ deliberate avoidance of news and offers insights for owners and developers of short-form video platforms and algorithms.
Source language influences in the Australian mixed language, Light Warlpiri
Authors: O’Shannessy Carmel 
Published: February 2024

Abstract
A mixed language is formed through the systematic combination of subsystems from two source languages (Bakker 2017: 219). Defining features include the social history of a language and the
ways in which the source language components are distributed in the mixed language, showing significant amounts of lexicon and/or
grammar from each source. Yet it is possible for a language of this type to also have identifiable influence from a third
language, still showing a dichotomy of source in that the three sources can be categorised into two groups. The Australian mixed
language, Light Warlpiri, shows evidence of contributions from Warlpiri, on the one hand, and Kriol and English on the other.
Interestingly, the reflexive-reciprocal subsystem of Light Warlpiri shows clear influence of English, in contrast to that of
Kriol. Subsystems can each operate somewhat independently of other subsystems in terms of which sources they draw on and how they
do so.
The role of complexity in the ability to notice incoherent uses of connectives for L2
Authors: Wetzel Mathis , Zufferey Sandrine , Gygax Pascal 
Published: February 2024

AbstractWhen learning a second language, some connectives are more difficult to acquire and to master than others. While previous research has assessed different factors responsible for this difficulty by using offline tasks, little is known about the extent to which L2-readers are sensitive to different connectiveswhile reading. In our study, we compared self-paced reading times of native and non-native speakers of French for sentences that were correctly or incorrectly marked with either the infrequent connectivecependant(‘however’) or the more frequentmais(‘but’). Results showed that incorrect uses only produced longer reading times whenmaiswas used. Yet, in a sentence-evaluation-task using the same set of sentences, L2-speakers were able to discriminate incorrectly marked sentences withcependantfrom correctly marked ones. We conclude that a good theoretical understanding of connectives for L2 (Experiment 2) does not always warrant a quick activation of their meaning while reading (Experiment 1).
When heritage speakers study in their heritage countries
Authors: Guerrero-Rodriguez Paola , Pascual y Cabo Diego , Prada Josh 
Published: February 2024

Abstract
With a well-established bedrock of literature exploring the benefits of study abroad (SA) in
second/foreign/additional language learning contexts (e.g., Anderson et al., 2006;
Smith & Mitry, 2008; Williams,
2005), Spanish as a heritage language scholars have only recently begun to explore SA settings (e.g., Pozzi et al., 2021; Quan et al., 2018; Shively, 2018). This short-term longitudinal multiple case study examines the experiences of four
Mexican American college students during a SA program in Mexico, their heritage country, and their interplay with their evolving
identities. We draw from social identity theory concepts and tools (e.g., Bucholtz & Hall,
2005; Hogg & Abrams, 1988) to compare the students’ individual
expectations, experiences, and outcomes of participating in the program. Data were collected using personal reflections and
individual interviews at three stages (prior to, during, and after completing the program). Results reveal general positive
experiences at the superficial level, with changes in each individual’s ethnic identification, supporting the need to further
examine individual differences in future SA research. Finally, drawing from these findings, we make recommendations to prepare
students, host families, and instructors to engage practices that will aid in SA program success.
The effects of study abroad on L2 vocabulary development
Authors: Güvendir Emre , Borràs Judith , Acar Güvendir Meltem 
Published: February 2024

Abstract
While research on second language (L2) vocabulary development after a study abroad (SA) experience has been
largely investigated, findings are still not clear-cut because of the multifaceted nature of vocabulary and the different
methodologies used when investigating its growth. For this reason, the aim of the present study was to elucidate the link between
SA and lexical development. A multilevel meta-analysis including 25 studies was conducted to examine the extent to which overall,
receptive vocabulary (RV) and productive vocabulary (PV) are impacted by a SA experience. A second objective was to determine
whether length of stay (LoS) in the target country has an effect on L2 vocabulary development. Results showed that international
stays have a significantly large impact on RV and overall vocabulary and a significantly moderate impact on PV. The analysis also
showed that LoS alone cannot be used as a predictor of gains in the students’ L2 vocabulary.
Developing digital health literacy amidst the Covid-19 infodemic
Authors: Maglie Rosita , Groicher Matthew 
Published: February 2024

Abstract
During the Covid-19 pandemic, the concurrent infodemic highlighted the urgent need to develop autonomous and advanced reading skills for an increasingly complex and ambiguous world. Particularly, in this context, there appears to be a tension between people seeking clear, authoritative information and advice on the internet, and health experts giving recommendations, actively defining the boundaries of their (in)expertise by formulating (un)certainty that is such a prevalent feature of this novel virus. Our claim is that possible evidence of a creditable source online emerges when the healthcare professional describes their (in)expertise through a systematic deployment of a wide range of warranting strategies, while claiming authority in a limited field of knowledge (Richardson 2003). Our analysis addresses the expert online formulation of (un)certainty focusing on a daily coronavirus podcast, i.e., Coronacast. Through a corpus-assisted discourse analysis, this study uncovers the major types of warranting strategies used by the health hosts in a corpus containing only episodes where there is an expert guest and/or a link to scientific sources. Deeper understanding of how healthcare providers/health podcasters use warranting strategies may make a meaningful contribution to the repertoire of tools useful for identifying un/reliable messages in an increasingly digitalized world.
Dibaryons and where to find them
Authors: Bashkanov M , Watts D P , Clash G , Mocanu M , Nicol M 
Published: February 2024

Abstract
In recent years, there has been tremendous progress in the investigation of bound systems of quarks with multiplicities beyond the more usual two- and three-quark systems. Experimental and theoretical progress has been made in the four-, five- and even six-quark sectors. In this paper, we review the possible lightest six-quark states using a simple ansatz based on SU(3) symmetry and evaluate the most promising decay branches. The work will be useful to help focus future experimental searches in this six-quark sector.
Quantum oscillations evidence for topological bands in kagome metal ScV6Sn6
Authors: Zheng Guoxin , Zhu Yuan , Mozaffari Shirin , Mao Ning , Chen Kuan-Wen , Jenkins Kaila , Zhang Dechen , Chan Aaron , Arachchige Hasitha W Suriya , Madhogaria Richa P , Cothrine Matthew , Meier William R , Zhang Yang , Mandrus David , Li Lu 
Published: February 2024

Abstract
Metals with kagome lattice provide bulk materials to host both the flat-band and Dirac electronic dispersions. A new family of kagome metals is recently discovered in AV6Sn6. The Dirac electronic structures of this material needs more experimental evidence to confirm. In the manuscript, we investigate this problem by resolving the quantum oscillations in both electrical transport and magnetization in ScV6Sn6. The revealed orbits are consistent with the electronic band structure models. Furthermore, the Berry phase of a dominating orbit is revealed to be around π, providing direct evidence for the topological band structure, which is consistent with calculations. Our results demonstrate a rich physics and shed light on the correlated topological ground state of this kagome metal.