bluuebunny/crossref_metadata_2025_split huggingface dataset:
Exact solutions for analog Hawking effect in dielectric media
Authors: Trevisan S. , Belgiorno F. , Cacciatori S. L. 
Published: October 2024

In the framework of the analog Hawking radiation for dielectric media, we analyze a toy model and also the 2D reduction of the Hopfield model for a specific monotone and realistic profile for the refractive index. We are able to provide exact solutions, which do not require any weak dispersion approximation. The theory of Fuchsian ordinary differential equations is the basic tool for recovering exact solutions, which are rigorously identified and involve the so-called generalized hypergeometric functions F34(α1,α2,α3,α4;β1,β2,β3;z). A complete set of connection formulas are available, both for the subcritical case and for the transcritical one, and also the Stokes phenomenon occurring in the problem is fully discussed. From the physical point of view, we focus on the problem of thermality. Under suitable conditions, the Hawking temperature is deduced, and we show that it is in full agreement with the expression deduced in other frameworks under various approximations.

Published by the American Physical Society
2024
Single-Shot Readout and Weak Measurement of a Tin-Vacancy Qubit in Diamond
Authors: Rosenthal Eric I. , Biswas Souvik , Scuri Giovanni , Lee Hope , Stein Abigail J. , Kleidermacher Hannah C. , Grzesik Jakob , Rugar Alison E. , Aghaeimeibodi Shahriar , Riedel Daniel , Titze Michael , Bielejec Edward S. , Choi Joonhee , Anderson Christopher P. , Vučković Jelena 
Published: October 2024

The negatively charged tin-vacancy center in diamond (SnV−) is an emerging platform for building the next generation of long-distance quantum networks. This is due to the SnV−’s favorable optical and spin properties including bright emission, insensitivity to electronic noise, and long spin coherence times at temperatures above 1 K. Here, we demonstrate measurement of a single SnV− electronic spin with a single-shot readout fidelity of 87.4%, which can be further improved to 98.5% by conditioning on multiple readouts. In the process, we develop understanding of the relationship between strain, magnetic field, spin readout, and microwave spin control. We show that high-fidelity readout is compatible with rapid microwave spin control, demonstrating a favorable parameter regime for use of the SnV− center as a high-quality spin-photon interface. Finally, we use weak quantum measurement to study measurement-induced dephasing; this illuminates the fundamental interplay between measurement and decoherence in quantum mechanics, and provides a universal method to characterize the efficiency of color-center spin readout. Taken together, these results overcome an important hurdle in the development of the SnV−-based quantum technologies and, in the process, develop techniques and understanding broadly applicable to the study of solid-state quantum emitters.

Published by the American Physical Society
2024
A better use of the shoulders we stand on: meta-analyses in the history of education
Authors: Geiss Michael , Westberg Johannes 
Published: October 2024

PurposeThis article argues that the potential of the vast amount of research, published each year in the history of education, remains untapped. Given the rapidly growing number of academic publications in the field, there is a need for research that is based on articles, chapters and monographs already published. While analyses of existing research publications are widely used in other academic disciplines, such approaches remain under-utilized in the history of education.Design/methodology/approachThe argument of this article is supported in three steps. Firstly, we distinguish between different forms of research using existing data and research publications, in particular secondary analyses, systematic literature reviews and meta-analyses. Due to the heterogeneous nature of research publications in educational history, this article argues for the method of qualitative meta-analysis. Secondly, we discuss the risks and methodological pitfalls of research using existing research publications, outlining possible areas of application and discuss examples of meta-analyses in educational history. Finally, the article explores the implications of an increased use of meta-analyses, especially for the editors of scientific journals.FindingsThis article provides an introduction to the main features of meta-analysis as applied in history of education. By promoting qualitative meta-analyses as original research, we argue that journals could help ensure that the potential for vibrant and highly productive research in the history of education is fully realized.Originality/valueDespite that the use of published research is widely discussed in the behavioural and social sciences, there is a lack of reflection on how to use the knowledge produced in the history of education. By presenting qualitative meta-analysis, this article provides a starting point for such a discussion.
A netnographic analysıs of tourists’ memorable tourısm experıences: the case of historical Egyptian (Spice) Bazaar ın Istanbul
Authors: Kodas Betül , Subaşı Asef 
Published: October 2024

Purpose
To provide visitors with a variety of experiences, tourism is a collection of activities that might leave a lasting impact on them. Anticipating and understanding what makes visitors memorable can give destinations and tourism marketers a competitive advantage. Regarding this, the purpose of this study is to investigate the memorable tourism experiences of international tourists who have visited the Egyptian (Spice) Bazaar in Istanbul.

Design/methodology/approach
The comments made by travelers from abroad on TripAdvisor following their experiences were examined using a netnographic analysis methodology. The data were collected from the most recent to the oldest comments posted on tourist experiences about historical Egyptian (spice) bazaar (n: 825).

Findings
In line with the findings obtained from the reviews examined, six components were determined that make the tourists’ experiences memorable: ambience (1), novelty (2), hedonism (3), local culture (4), knowledge (5) and price (6).

Originality/value
The memorable Egyptian (Spice) Bazaar experiences of international tourists analyzed within the scope of the research were in line with the dimensions of novelty, hedonism, knowledge and local culture of the study conducted by (Kim & Ritchie, 2014); ambience and product price were found to be the two different dimensions. It can be stated that results of the study can help to develop effective strategies to improve the competitiveness of the destination.
Collaborative governance and integrated risk management framework of natural disasters
Authors: Tiwari Ashu 
Published: October 2024

Purpose
This study aims to align the objectives of key stakeholders by developing an integrated framework for high-impact natural disaster risk management. High-impact natural disasters have emerged as one of the most challenging policy issues.

Design/methodology/approach
The authors have applied the thematic text analysis for analysing the list of questions essential to develop an integrated framework. For theory, the authors have used the theoretical framework of collaborative governance.

Findings
The current work explains how to identify key stakeholders. Furthermore, it describes the framework to fit stakeholders' actions into the actionable components of risk management. Additionally, this framework also helps the firms that fall under the category of the industries “in the proximity of risks” and “the support industries” in modifying their role in the context of natural disaster risk.

Research limitations/implications
The limitation of this framework is that the authors relied on commonly occurring natural disaster risks to develop the framework. Therefore, risk-specific aspects are less likely to be thoroughly covered in this framework. However, this limitation is not directly impacting the goal of this study. Additionally, in the future more comprehensive framework with the additional element in the existing framework can overcome these limitations.

Practical implications
The findings of the study offer insights that can be useful for policymakers in developing various preventive strategies. Managers can use the results and align their objectives with policy goals.

Social implications
Socially, if communities try to design local risk management strategies, this framework would be helpful.

Originality/value
This study illustrates the role of objective alignment in high-impact risk management. This study is crucial in extending current knowledge on high-impact natural disaster risk management.
Exploring whether digital technologies ameliorate firms’ servitization: the moderating role of organizational slack and research and development intensity
Authors: Babalola Emmanuel Olusola , Wu Bo , Fosu Edward , Shakeel Nausheen 
Published: October 2024

PurposeDigital technologies are essential for improving efficiency and unlocking new opportunities in various domains. The purpose of this study is to assess whether digital technologies can ameliorate servitization among manufacturing firms via the interaction of organizational slack and research and development (R&D) intensity.Design/methodology/approachDrawing on resource-based and service-dominant logic, the study employs a deductive approach and gathers empirical evidence from 1,929 listed A-shares manufacturing firms in the top-seven China mainland industrial provinces spanning the period 2012–2021. It used fixed-effect logistic regression techniques while controlling for various factors to analyze the relationship between digital technologies and manufacturing firm servitization.FindingsThe findings revealed that digital technologies significantly ameliorate manufacturing firms' servitization. Moreover, the study uncovers the contingent nature of this relationship, demonstrating that high levels of both internal and external slack, which provide flexibility and support, intensify the direction of digital technologies towards servitization. Additionally, R&D intensity reflects the firm's commitment to innovation, thereby enhancing synergistic effects in the relationship.Originality/valueThis study contributes robust and comprehensive empirical evidence that validates and establishes a clear baseline relationship reflecting the most current digital technology landscape and its implications for manufacturing firms servitization. Moreover, it provides a more patterned understanding of how internal and external slack typologies and R&D intensity contextualize our study’s findings. Additionally, it demonstrates how our theoretical synthesis advances firms’ strategic shifts towards service-oriented business models through digital technologies.
Occupational performance patterns in children with paediatric acute‐onset neuropsychiatric syndrome
Authors: Newby Michelle J. , Lane Shelly J. , Haracz Kirsti , Tona Janice , Palazzi Kerrin , Lambkin David 
Published: October 2024

AbstractIntroductionPaediatric acute‐onset neuropsychiatric syndrome (PANS) is a neuroimmune condition characterised by episodic exacerbations and remissions. This study investigates the impact of PANS on children's occupational performance during these phases, using the Vineland Adaptive Behaviour Scale (VABS). Understanding these variations is crucial for developing tailored interventions and managing the condition effectively.MethodsA two‐period bidirectional case‐crossover design was employed to assess occupational performance in children with PANS at exacerbation (T‐E) and remission (T‐R) phases. Parents of children aged 4.6–13.1 years with PANS were recruited globally, with data collected via online surveys and monthly updates. The VABS evaluated occupational performance, with analysis using linear mixed models and Least Squares Means (LSMeans) for accurate representation.ResultsData from 27 participants showed significantly lower scores in the Adaptive Behaviour Composite and socialisation domain of the VABS at T‐E compared with T‐R, indicating a decline in occupational performance and social skills during exacerbations. During remission, participants demonstrated typical performance across all domains.ConclusionThe study highlights a marked decline in occupational performance and socialisation during PANS exacerbations, with improvements to typical levels during remission. These findings emphasise the need for targeted interventions to address occupational and social challenges in children with PANS during exacerbations, underscoring the episodic nature of the condition and the risk of misinterpreting behaviours if assessed during exacerbations. Multidisciplinary allied health support may benefit children with PANS.Consumer and community involvementAlthough there was no direct consumer and community involvement, two researchers on our team have family members with PANS. Their personal experiences provided vital insights into the challenges faced by children with PANS, deeply influencing our study's design, focus, and interpretation, ensuring it reflects the realities of those affected.PLAIN LANGUAGE SUMMARYOur study looked at how PANS affects the things children do in their daily lives. We asked parents of children ages 4.6–13.1 years old to complete surveys measuring this at two times: once during a symptom flare‐up and once during a period of wellness. Our results showed that during symptom flare‐ups, children's social skills and general ability to do daily tasks were much lower compared with periods of wellness. When children were well, their abilities were similar to those of typically developing children of the same age. This highlights the need for occupational therapy during flare‐ups to help improve the lives of children with PANS.
“We don't get that information right back to us unless it's a full‐blown cancer”: Challenges coordinating lung cancer screening across healthcare systems
Authors: Bolton Rendelle E. , Núñez Eduardo R. , Boudreau Jacqueline , Kearney Lauren M. , Ryan Samantha K. , Herbst Abigail , Slatore Christopher , Wiener Renda Soylemez 
Published: October 2024

AbstractObjectiveTo examine how lung cancer screening (LCS) is coordinated across healthcare systems, specifically Veterans Affairs (VA) and non‐VA settings.Data Sources and Study SettingWe conducted primary qualitative data collection in six VA medical centers with established LCS programs from November 2020 to November 2021.Study Design and Data Collection MethodsSemi‐structured interviews were conducted with 48 primary care providers, LCS program coordinators and directors, and pulmonologists. Thematic analysis examined spontaneously raised narratives related to initiating and coordinating LCS for Veterans screened in non‐VA settings. We mapped coordination challenges to each step of the LCS care continuum.Principal FindingsWhile non‐VA options increased access to LCS for Veterans, VA medical centers lacked clear processes for initiating LCS referrals and tracking Veterans across the LCS continuum when screening occurred in non‐VA settings. The responsibility of coordinating LCS with community providers often fell to VA primary care providers rather than LCS programs. Gaps in communication and data transfer contributed to delayed evaluation of potentially cancerous nodules post‐screening, raising concerns about compromised care quality when LCS was shared with non‐VA settings.ConclusionsWhile policies expanding LCS for Veterans in non‐VA settings increase access, lack of consistent processes to initiate referrals, obtain results, and promote timely downstream evaluation fragmented care and delayed evaluation of concerning nodules. These unintended consequences highlight a need to address cross‐system coordination challenges. Strategies to better coordinate LCS between VA and non‐VA settings are essential to achieve high quality LCS and prevent Veterans from falling through the cracks.
The impact of news media coverage on voluntary disclosure
Authors: Lock Brandon 
Published: October 2024

AbstractThis study investigates whether and how firm‐specific news media coverage affects corporate voluntary disclosure. I predict that media coverage influences managers' disclosure decisions by directing investor attention toward firms and increasing investor demand for firm information. I find that managers are more likely to issue earnings guidance if their recent earnings guidance receives more media coverage. The relation between media coverage and guidance issuance is stronger for news articles that purely disseminate information quickly and are published by news outlets that target institutional investors. Consistent with my hypothesis that media coverage influences investor demand for information, I find evidence that media coverage of guidance positively relates to subsequent institutional information search activity, which in turn positively relates to future guidance issuance. Examining sources of plausibly exogenous variation in media coverage, I find further corroborative evidence of a positive relation between media coverage and earnings guidance. Overall, these analyses indicate that the news media influence managers' provision of voluntary disclosure.
A RETREG1 variant is associated with hereditary sensory and autonomic neuropathy with acral self‐mutilation in purebred German Spitz
Authors: Letko Anna , Quignon Pascale , Quilleré Maéva , Husson Jean‐Charles , de Citres Caroline Dufaure , Donner Jonas , Dréano Stéphane , Plassais Jocelyn , André Catherine 
Published: October 2024

AbstractHereditary sensory and autonomic neuropathies (HSAN) represent a group of genetic diseases affecting the peripheral nervous system. In humans, at least 16 loci have been associated with the disorder but do not explain the disease origin of all patients. In dogs, similar conditions have been documented for decades in various breeds with a severe impact on life quality and are often referred to as acral mutilation syndrome (AMS). Causal variants in three genes have been identified to date, suggesting larger genetic heterogeneity in the dog population. Our aim was to explain the genetic etiology of an early‐onset HSAN/AMS in a purebred German Spitz. The affected dog showed progressive loss of pain sensation in the distal extremities, which led to intense licking, biting, and self‐mutilation of digits and paw pads. Whole‐genome sequencing identified a single candidate causal variant on chromosome 4 in the RETREG1 gene (c.656C>T, p.Pro219Leu). This missense variant was previously recognized as deleterious in a mixed breed dog family with similar clinical signs. Haplotype analyses and targeted genotyping revealed a likely German Spitz ancestry of these mixed breed dogs. Further screening of an extensive cohort of ~900 000 dogs of various breeds hinted at the variant allele origin in the German Spitz breed. Disruption of RETREG1 inhibits endoplasmic reticulum turnover and leads to neuron degeneration. Our findings provide evidence that this variant underlies the recessive form of HSAN/AMS in the German Spitz and support the use of whole‐genome sequencing‐based veterinary precision medicine for early diagnosis and prevention via a genetic test.
Frailty in general medicine patients receiving geriatric medicine liaison services is predictive of adverse outcomes
Authors: Thompson Mark Q. , Fatema Nur‐E‐Zannat , Tucker Graeme R. , Khalid Ashna , Huang Yue , Smyth Carla R. , Yu Solomon , Visvanathan Renuka 
Published: October 2024

AbstractIntroductionFrailty is in an increasing focus for acute care systems due to its association with adverse health outcomes. The Clinical Frailty Scale (CFS) is a judgement‐based frailty assessment tool, which classifies the frailty status of older adults, but more research involving general medicine inpatients is necessary. The objectives of this study were to describe the predictive ability of CFS, administered by geriatric medicine trained nurses, for adverse outcomes including the following: acute unit and total length of stay (LOS), new nursing home (NH) admission, 12‐month mortality and readmission within 30‐day.MethodsDesignRetrospective study.ParticipantsPatients admitted under general medicine unit and seen by the geriatric medicine liaison team in one general hospital.Main MeasureCFS.ResultsOf 394 patients included, 60% were mild–moderately frail, and 21% severely frail. In a multivariable analysis, patients classified as severely frail (CFS 7–9) had significantly high odds of death during admission (OR = 13.64), new NH admission (OR = 34.97) and acute LOS (OR = 1.74), compared to non‐frail patients (CFS1‐4). Mild–moderately frail (CFS 5–6) patients had significantly higher odds for new NH admission (OR = 4.36), acute unit LOS (OR = 1.49) and total LOS (OR = 1.61) compared to non‐frail patients. In a Cox regression multivariable survival analysis, the severely frail had a sixfold significantly higher likelihood (HR = 6.19) of 12‐month mortality, and the mild–moderately frail had a doubled likelihood (HR = 2.13), compared to the non‐frail.ConclusionsThe CFS has clinical utility for identifying general medicine older inpatients at‐risk of various adverse outcomes.
Tracheomalacia and surgical options: A case series perspective
Authors: Møller Helene Holmark , Schmidt Marika Nathalie , Ifaoui Inge B. R. , Thyregod Hans G. H. , Christiansen Elisabeth S. , Muthialu Nagarajan , Buchvald Frederik F. , Nielsen Kim G. 
Published: October 2024

AbstractTracheomalacia causes considerable morbidity in children, and the best treatment options remain debated. This paper presents a case series of seven Danish children who underwent surgical interventions, such as tracheopexy and aortopexy, demonstrating favourable clinical outcomes, notably with early intervention. We discuss the indications, timing and potential benefits of surgery for tracheomalacia in reducing respiratory symptoms caused by tracheal collapse. Our case series highlights the potential of surgical options in managing tracheomalacia, emphasising the need for standardised protocols, multidisciplinary and international collaboration, and further research to optimise treatment strategies and outcomes.
Significance of resected stomach measurements in postoperative delayed gastric emptying following laparoscopic pylorus‐preserving gastrectomy
Authors: Ito Nozomi , Tsujimoto Hironori , Kumano Isao , Fujishima Seiichiro , Kariya Risa , Uehata Naoyuki , Fukuoka Yusuke , Suzuki Takafumi , Itazaki Yujiro , Horiguchi Hiroyuki , Yaguchi Yoshihisa , Ueno Hideki 
Published: October 2024

AbstractPurposeWe investigated the relationship between the resected stomach measurements, the incidence of delayed gastric emptying (DGE), and food residue 1 year after surgery in patients who underwent laparoscopic pylorus‐preserving gastrectomy (PPG).Materials and MethodsThe DGE group included 10 patients fasting due to nausea, vomiting, abdominal distension, or remnant stomach distension on radiographs; the control group included 36 patients without these symptoms. We compared the size and length of lesser and greater curvatures of the resected stomach and endoscopic findings after 1 year.ResultsNo significant differences were observed between groups in terms of sex, body mass index, gross type, histology, tumor progression, number of dissected lymph nodes, operating time, or blood loss. The DGE group was older, had a longer postoperative stay, and showed a smaller size and shorter greater curvature of the resected stomach than the control group (p < 0.01 for all). No difference was observed in the length of the lesser curvature of the resected stomach. In addition, there were no disparities in residual food, degree and extent of gastritis, or bile reflux 1 year after gastrectomy.ConclusionsMeasurements of the resected stomach suggest that preventing DGE may be achievable by removing a larger area of the greater curvature and/or stomach during laparoscopic PPG. This implies potential surgical strategy improvements for better outcomes. Further multicenter trials are needed to validate and refine techniques.