bluuebunny/crossref_metadata_2025_split huggingface dataset:
On the Stability of IMEX Upwind gSBP Schemes for 1D Linear Advection-Diffusion Equations
Authors: Ortleb Sigrun 
Published: August 2023

AbstractA fully discrete energy stability analysis is carried out for linear advection-diffusion problems discretized by generalized upwind summation-by-parts (upwind gSBP) schemes in space and implicit-explicit Runge-Kutta (IMEX-RK) schemes in time. Hereby, advection terms are discretized explicitly, while diffusion terms are solved implicitly. In this context, specific combinations of space and time discretizations enjoy enhanced stability properties. In fact, if the first- and second-derivative upwind gSBP operators fulfill a compatibility condition, the allowable time step size is independent of grid refinement, although the advective terms are discretized explicitly. In one space dimension it is shown that upwind gSBP schemes represent a general framework including standard discontinuous Galerkin (DG) schemes on a global level. While previous work for DG schemes has demonstrated that the combination of upwind advection fluxes and the central-type first Bassi-Rebay (BR1) scheme for diffusion does not allow for grid-independent stable time steps, the current work shows that central advection fluxes are compatible with BR1 regarding enhanced stability of IMEX time stepping. Furthermore, unlike previous discrete energy stability investigations for DG schemes, the present analysis is based on the discrete energy provided by the corresponding SBP norm matrix and yields time step restrictions independent of the discretization order in space, since no finite-element-type inverse constants are involved. Numerical experiments are provided confirming these theoretical findings.
Why do residents fail simulation-based assessments of operative competence? A qualitative analysis
Authors: Toale C. , Morris M. , Kavanagh D. O. 
Published: August 2023

AbstractThis qualitative study explored factors influencing the scoring decisions of raters in a simulation-based assessment of operative competence, by analysing feedback provided to trainees receiving ‘borderline’ or ‘not competent’ global scores across stations in an Objective Structured Clinical Examination (OSCE). Directed qualitative content analysis was conducted on feedback provided to trainees during a novel simulation-based assessment. Initial codes were derived from the domains of the Objective Structured Assessment of Technical Skills (OSATS) tool. Further quantitative analysis was conducted to compare the frequency of codes across feedback provided to ‘junior’ and ‘senior’ general surgery trainees. Thirteen trainees undertook the eight-station OSCE and were observed by ten trained assessors. Seven of these were ‘senior’ trainees in their last 4 years of surgical training, while 6 were ‘junior’ trainees in their first 4 years. A total of 130 individual observations were recorded. Written feedback was available for 44 of the 51 observations scored as ‘borderline’ or ‘not competent’. On content analysis, ‘knowledge of the specific procedure’ was the most commonly cited reason for failure, while ‘judgement’ and ‘the model as a confounder’ were two newly generated categories found to contribute to scoring decisions. The OSATS tool can capture a majority of reasons cited for ‘borderline’ or ‘not competent’ performance. Deficiencies in ‘Judgement’ may require simultaneous non-technical skill assessments to adequately capture. It is imperative that assessors and candidates are adequately familiarised with models prior to assessment, to limit the potential impact of model unfamiliarity as a confounder.
Reliability of steel structures with Chevron bracing systems considering the performance-based seismic design philosophy
Authors: Alvarado-Valle Omar E. , Gutierrez-Lopez Aaron , Tolentino Dante , Gaxiola-Camacho J. Ramon 
Published: August 2023

AbstractIn this paper, the seismic performance and reliability of steel buildings with Chevron-Braced frames are studied integrating a novel probabilistic approach and the performance-based seismic design concept. The seismic response of models is extracted using response history analyses with the help the commercial software SAP2000. In this sense, three variables associated with the seismic response of the structure are studied: overall lateral displacement, rotation of connections, and inter-story drift. Those responses are evaluated by exciting the structure with eleven characteristic ground motions of the zone with respect to three performance levels: immediate occupancy, life safety, and collapse prevention. Once the seismic response is extracted for every performance level, the reliability of the models is calculated with respect to inter-story drift as described next. First, considering the seismic response in terms of inter-story drift for every ground motion, the associated histogram is constructed. Then, using 13 Probability Density Functions (PDFs), a Chi-square test is performed to identify the best-fitted PDF associated to the histogram of inter-story drift. Afterwards, with the best-fitted PDF of inter-story drift, the probability of failure and reliability index are extracted considering serviceability limits for every performance level. This represents a unique approach to extract the risk of structures subjected to ground motions associated to different performance levels. In addition to the structural reliability, a study about the cost of the structures with and without Chevron braces is developed, and then, it is documented the best option. Finally, based on the results reported in this paper, it is demonstrated that steel buildings with Chevron-braced frames present a better seismic performance than steel moment resisting frames without any bracing system. In summary, overall lateral drifts are reduced between 40 and 60% when Chevron braces are implemented in comparison to steel moment resisting frames without braces. On the other hand, if Chevron bracing systems are not used, i.e., in steel moment resisting frames, the inter-story drifts are about 300% higher than those of steel structures with Chevron braces. Hence, structural damages can be considerably reduced if Chevron-braced frames are implemented in steel structures that may be excited by characteristic ground motions of the zone where they are located.
Valuing ecosystem services from restoring ancient irrigation systems: An application comparing labor vs. monetary payments for choice experiments
Authors: Dissanayake Sahan T. M. , Vidanage Shamen 
Published: August 2023

AbstractThe use of stated preference methods with monetary payments in developing countries can be problematic as barter and paying with labor are common in rural areas. In response, a growing number of stated preference studies explore using monetary and nonmonetary payment options. We contribute to this literature by exploring the impact of monetary vs. labor payment options on values elicited from choice experiment studies conducted in rural developing country settings. We also contribute to the literature by comparing data-gathering methods, specifically individual surveys vs. group information sessions. Our application is the restoration of an ancient irrigation system known as cascading tank systems in Sri Lanka. We conduct a choice experiment to understand the willingness to pay/willingness to contribute of rural households to restore these irrigation systems. We find that in the individual survey setting, there are no significant differences between monetary and labor payments. We also find that there is no difference between the group and individual survey settings for the monetary payment treatment. For the labor payment treatment, the group setting results in a positive payment coefficient for the labor payment attribute. This highlights that labor payments should be used cautiously in group evaluation settings.
The Evolution of the Public Security Defence in EU Free Movement Law: Lessons from the Energy Sector
Authors: Huhta Kaisa 
Published: August 2023

AbstractThis Article analyses the evolution of the public security defence to justify restrictions on free movement within the EU in the context of the energy sector. Taking the seminal 1984 Campus Oil case as the point of departure for its analysis, the Article focuses on the interplay between public security and energy security and shows two key changes in the case law of the Court of Justice of the European Union. First, it demonstrates how the scope of the public security defence in the energy sector has gradually narrowed. Second, it shows how the public security defence has developed to take into account evolving social, technological, and legal contexts in the EU energy sector. Culminating in cases like Hidroelectrica in 2020 and OPAL in 2021, analysis of the relevant case law suggests that, despite the societal dependence on energy and the ongoing geopolitical turmoil in Europe, the Court of Justice interprets exceptions from free movement in an increasingly strict manner, highlighting the primacy of internal market approaches to energy security.
Social science to accelerate coastal adaptation to sea-level rise
Authors: Philippenko Xénia , Le Cozannet Gonéri 
Published: August 2023

Abstract
The latest IPCC report estimates that approximately 1 billion people will be at risk from coastal hazards in the near term due to coastal population increase, sea-level rise and other coastal changes. This will occur in a world that is changing rapidly due to climate change, ecosystem decline, human development and the projected transformations of the economy to meet the objectives of the Paris Agreement. In this context, social sciences provide a pivotal perspective to coastal adaptation, for example, while assessing barriers and opportunities across scales, from local to global. This scoping review explores how social sciences support coastal adaptation. We show that Political Sciences, Economics, Sociology and Geography are already supporting coastal adaptation. Yet, scientific fields such as legal sciences, psychology, history and archaeology as well as anthropology and ethnography are less developed in the context of coastal adaptation to sea-level rise. New research avenues could also integrate education, media and communication research and aim at truly interdisciplinary studies linking different branches of social sciences with coastal science and climate services. This effort could help moving from a coastal adaptation often focused on coastal engineering protection to a broader vision of coastal resilient development, also addressing the challenges of mitigation, sustainable development and coastal ecosystem decline.
The Value of Etoposide for Recurrent Glioma
Authors: van der Meulen Matthijs , Chahal Manik , Mason Warren P. 
Published: August 2023

ABSTRACT:Background:For multiply recurrent glioma, options are few and choices are very limited. Etoposide in combination with carboplatin and/or bevacizumab has been evaluated in recurrent glioma with modest efficacy. This retrospective study describes the efficacy of etoposide monotherapy in adults with multiply recurrent diffuse glioma.Methods:In this single center retrospective series, all adult patients with radiographically proven multiply recurrent diffuse glioma (WHO grade 2–4) treated with etoposide between 2016 and 2020 were evaluated. Progression-free survival (PFS) and overall survival (OS) after initiating etoposide were calculated for the total group and for different histologic tumor types. In addition, treatment-related toxicity was recorded.Results:Totally, 48 patients with a median age 43 years-old (range 24–78) were included. Etoposide was given as 3rd line of treatment in 18 patients (37.5%) and as 4th or 5th line of treatment in 30 patients (62.5%). The majority were diagnosed with a glioblastoma, WHO grade 4 (27, 56.3%). The median PFS was 8.6 weeks (95% confidence interval [CI]: 8.3–8.9). The median OS of the total population was 4.0 months (95% CI: 2.4–5.6). Patients with an oligodendroglioma had the best OS (median 13 months), compared to astrocytoma and glioblastoma, but the difference was not statistically significant (p = 0.15). Etoposide was stopped due to progression in the majority of the patients (81.3%). Only 1 patient had a grade 3 toxicity.Conclusion:Etoposide is a well-tolerated chemotherapy in heavily pretreated patients with multiply recurrent glioma and could be considered when other options are not available. OS was 4 months after initiating etoposide.
A mixed-methods analysis to understand the implementation of a multistakeholder research consortium: Environmental influences on child health outcomes (ECHO)
Authors: Faro Elissa Z. , Sauder Katherine A. , Norman Gwendolyn S. , Anderson Amber , Vélez-Vega Carmen , Napp David , Huddleston Kathi C. 
Published: August 2023

Abstract

Introduction:
Large, transdisciplinary research consortia have increasingly been called upon to address complex and challenging health problems. The National Institutes of Health’s (NIH) Environmental influences on Child Health Outcomes (ECHO) Program developed multisite collaboration strategies to promote impactful collaborative observational research on child health. Team science and implementation science offer theoretical and methodological structure to answer questions about the strategies that facilitate successful consortia. We sought to characterize the elements and conditions that influence the implementation of a complex, interdisciplinary longitudinal research program, ECHO.

Methods:
Informed by the Practical, Robust, Implementation and Sustainability Model, our ethnographic research included semi-structured interviews with internal stakeholders and program evaluation metrics. We conducted template and matrix analysis and triangulated the qualitative and quantitative data to understand the implementation of ECHO.

Results:
Between February and May 2022, we conducted 24 virtual interviews with representatives from ECHO components. The main cross-cutting topics that emerged from thematic analysis were collaboration and team science; communication and decision-making; data processes and harmonization; and diversity, equity, and inclusion. Both the qualitative and secondary quantitative evaluation data provided insights into the reach, adoption, implementation, and effectiveness of the program.

Conclusion:
A large, multidisciplinary research consortium such as ECHO has produced conceptual, instrumental, capacity building, and connectivity impact for internal and external stakeholders. Facilitators included infrastructure that supported collaboration and learning, alignment of data processes, and harmonization. Opportunities for enhanced impact include multidisciplinary, multimethod communication strategies, and alignment of research priorities.
ChatGPT: A Case Study on Copyright Challenges for Generative Artificial Intelligence Systems
Authors: Lucchi Nicola 
Published: August 2023

AbstractThis article focuses on copyright issues pertaining to generative artificial intelligence (AI) systems, with particular emphasis on the ChatGPT case study as a primary exemplar. In order to generate high-quality outcomes, generative AI systems require substantial quantities of training data, which may frequently comprise copyright-protected information. This prompts inquiries into the legal principles of fair use, the creation of derivative works and the lawfulness of data gathering and utilisation. The utilisation of input data for the purpose of training and enhancing AI models presents significant concerns regarding potential violations of copyright. This paper offers suggestions for safeguarding the interests of copyright holders and competitors, while simultaneously addressing legal challenges and expediting the advancement of AI technologies. This study analyses the ChatGPT platform as a case example to explore the necessary modifications that copyright regulations must undergo to adequately tackle the intricacies of authorship and ownership in the realm of AI-generated creative content.
A 115 ps, 100 Hz high-beam-quality laser based on transient stimulated Brillouin scattering pulse compression
Authors: Yue Jianfeng , Wang Yulei , Jia Mengyu , Li Kai , Cao Chen , Yu Yu , Li Yunfei , Lü Zhiwei 
Published: August 2023

Abstract
This work demonstrates the generation of short pulse duration and high-beam-quality laser pulses using transient stimulated Brillouin scattering at a high repetition rate. Thermal effects and optical breakdown are identified as the main factors that restrict energy reflectivity and beam quality under high repetition rates and transient situations. Through experimental analysis, the interaction length and focal point size are determined to be the key parameters in reducing the thermal effect by reducing the absorption of the laser pulse by the medium. The obtained results show that pulses with a duration of 175 ps and beam quality M2 of around 1.2 can be achieved with a maximum energy reflectivity of over 40% under an interaction length of 50 mm. Furthermore, at an interaction length of 90 mm, a pulse output with a minimum duration of 115 ps (0.5τQ) is achieved.
Antibiotic waste in a pediatric healthcare system: Wasting drugs that are in limited supply
Authors: Fan Lucie K. , Lu Lydia , Fernandez Alfred J. , Jaggi Preeti 
Published: August 2023

AbstractIn a pediatric hospital system over 2 years, 58,607 doses of antibiotic were wasted, an average of 80 doses per day, including drugs in shortage nationwide. Approximately 50% of waste occurred within the first 2 days of admission or the day of discharge, with ampicillin being the most wasted drug (N = 7,789 doses).
Temporal changes in genetic diversity reveal small-scale invasion dynamics of the eastern redcedar (Juniperus virginiana var. virginiana) in the Lakeside Daisy State Nature Preserve in Ohio
Authors: Hartman Hannah M. , Rocha Oscar J. 
Published: August 2023

AbstractEastern redcedar (Juniperus virginiana L. var. virginiana; hereafter ERC) is a native species currently invading open areas and grasslands outside of its original range in the United States. We studied ERC’s invasion patterns in the Lakeside Daisy State Nature Preserve (LDSNP), a short grass prairie located on the Marblehead Peninsula in Ohio, examining the changes in the genetic diversity and structure of the encroaching population. We investigated the relative importance of long-distance dispersal versus diffusion in the invasion of this short grass prairie by ERC. We use eight microsatellite marker loci to infer gene flow from external sources versus within-population recruitment. We found that the older trees in this preserve were less than 50 yr old, indicating that the population was established between 1970 and 1980. When we grouped trees into five age categories of 10-yr increments, we found that the allelic diversity, as indicated by the average number of alleles per locus, increased as the age of the trees decreased. We also found that not all loci were in Hardy-Weinberg equilibrium, probably due to the arrival of new variants in the preserve. Moreover, heterozygosity remained high, with an excess of heterozygotes in all age groups (F = −0.163 ± 0.046). Principal coordinate analysis showed two distinct groups of trees in the LDSNP. Analysis of the cryptic population structure of the ERC trees using STRUCTURE revealed four ancestral clusters in the ERC population. All ancestral clusters are present in all age groups, suggesting that all trees sampled are derived from an admixed population. Furthermore, the high observed heterozygosity and lack of inbreeding in this dioecious species maintained all ancestral clusters over time. Overall, our findings indicate that ERC encroachment of the LDSNP results from multiple and reiterated gene flow events from the edge of the range through animal-mediated seed dispersal.
Wellbeing Promotion in Tasmanian Schools: Have We Forgotten Support Teachers?
Authors: Holzner Kristy-Lee , Gaunt Lorraine 
Published: August 2023

AbstractSupport teachers are responsible for educating students with disabilities who have complex needs and require additional resources. Because of the highly stressful nature of the role, support teachers are at greater risk of professional burnout, higher attrition rates, and impacts on wellbeing. There is a distinct lack of Australian or state/territory empirical evidence on strategies to promote support teacher wellbeing. In this exploratory qualitative study, we applied thematic analysis to interviews of Tasmanian support teachers to find that their wellbeing relies on principals’ and leadership staff’s support and implementation of wellbeing and inclusive education practices. Support teachers are experiencing stress, anxiety, emotional exhaustion, and depression caused by workload, accountability for funding, and poor leadership. School leaders who value wellbeing and inclusive practices foster a positive culture, demonstrating ecological theory. This study marks an initial step towards understanding how to nurture the support teachers of Tasmania.
Cultural Differences in People's Reactions and Applications of Robots, Algorithms, and Artificial Intelligence
Authors: Yam Kai Chi , Tan Tiffany , Jackson Joshua Conrad , Shariff Azim , Gray Kurt 
Published: August 2023

AbstractAlthough research in cultural psychology has established that virtually all human behaviors and cognitions are in some ways shaped by culture, culture has been surprisingly absent from the emerging literature on the psychology of technology. In this perspective article, we first review recent findings on machine aversion versus appreciation. We then offer a cross-cultural perspective in understanding how people might react differently to machines. We propose three frameworks – historical, religious, and exposure – to explain how Asians might be more accepting of machines than their Western counterparts. We end the article by discussing three exciting human–machine applications found primarily in Asia and provide future research directions.
NEW RADIOCARBON DATES FROM POLISH INLAND DUNES POINT TO PREVALENCE OF HUMAN IMPACT ON DUNE MOBILITY
Authors: Ninard Krzysztof , Łapcik Piotr , Uchman Alfred 
Published: August 2023

ABSTRACTThe timeframes of Holocene anthropogenic dune remobilization in Central Europe remain less studied compared to those of Late Glacial climatically controlled dune formation. The present contribution aims to reinforce existing knowledge on the chronology of Late Glacial–Holocene dune activity and stability, as well as to reveal the scale of human impact on dune remobilization. Accelerator mass spectrometry radiocarbon (AMS 14C) dating and calibration of the results are reported from paleosol horizons buried in inland dune deposits that occur in Central and Eastern Poland. Twenty-three new dates are based on charcoal samples collected at 13 sites. From each of the investigated sites, at least one AD date is obtained, indicating that buried paleosols of such young age are far more widespread in Polish dunes than reflected in previous studies. The widespread preservation of these paleosols under cover of aeolian sand reflects the extent of the anthropogenic dune formation phase that peaked during the Medieval and Early Modern periods.