bluuebunny/crossref_metadata_2025_split huggingface dataset:
Möglichkeit von Prüfungsszenarien unter Pandemiebedingungen
Authors: Jakob T. F. , Maier P. , Knopf A. , Rauch A. K. , Offergeld C. , Hildenbrand T. 
Published: February 2024

Zusammenfassung
Hintergrund
Die COVID-19-Pandemie verursachte weltweit Kontaktbeschränkungen, mit Auswirkungen auch auf das Medizinstudium. Da keine Präsenzveranstaltungen möglich waren, musste innerhalb kürzester Zeit ein digitales Curriculum erstellt werden. Die Rahmenbedingungen für ein Assessment stellten ein noch bedeutenderes Problem dar. Für Prüfungen wie die „objective structured clinical examinations“ (OSCE) mussten Lösungen gefunden werden, da die Durchführung in manchen Bundesländern sogar explizit verboten war. Ziel dieser Arbeit war die Prüfung der Durchführbarkeit einer OSCE unter Pandemiebedingungen.

Material und Methoden
Am Ende des Sommersemesters 2020 absolvierten 170 Studierende eine kombinierte HNO- und augenheilkundliche OSCE. Die Prüfung fand unter strenger Beachtung der Hygieneauflagen über 5 Tage statt. Während das HNO-Konzept virtuell ausgerichtet war, fand die augenheilkundliche Prüfung als Präsenzprüfung statt. Im Anschluss erfolgte die Bewertung der OSCE durch die Studierenden.

Ergebnisse
Zwischen 106 und 118 der Studierenden antworteten auf die jeweiligen Fragen. Im Vergleich der Präsenz- mit der virtuellen OSCE bevorzugten etwa 49 % die Präsenz-OSCE und etwa 17 % die virtuelle OSCE, etwa 34 % fanden beide Varianten gleich gut. Insgesamt wurde die Kombination aus HNO- und augenheilkundlicher OSCE als positiv gewertet.

Schlussfolgerung
Auch unter Pandemiebedingungen ist das Abhalten einer OSCE möglich. Für eine optimale Vorbereitung der Studierenden bedarf es u. a. einer Umstellung der Lehre auf ein digitales Curriculum. Die Kombination aus HNO- und augenheilkundlicher OSCE wurde von den Studierenden positiv bewertet, wobei die Präsenz-OSCE bevorzugt wurde. Bei insgesamt hoher Zufriedenheit auf studentischer Seite zeigt sich die Machbarkeit einer virtuellen Prüfung bei detaillierter und gut geplanter Vorbereitung.
Dissimilar material joining of densified superwood to aluminum by adhesive bonding
Authors: Hartsfield Matt , Chen Bo , Liu Yu , He Shuaiming , Leiste Ulrich H. , Fourney William L. , Li Teng , Hu Liangbing , Luo Alan A. 
Published: February 2024

AbstractSuperwood is a densified wood product that shows promise as a lightweight and renewable alternative for metallic materials. In order for this high-performance new material to be used in multi-material products, it must be able to be joined with other major materials. For example, joining superwood to aluminum would provide a key enabling technology for its use in automotive components since aluminum is presently a major lightweight material for such applications. In this paper, a methacrylate-based adhesive has been identified to provide high lap shear strength (7.5 MPa) for aluminum-to-superwood joints. The aluminum-to-superwood samples were prepared with different amounts of pre-polishing to create openings to the pores in the superwood so adhesive could penetrate into them and create a mechanical interlock, in addition to the hydrogen/chemical bonding at the surface between the methyl methacrylate (MMA) in methacrylate-based adhesive and the cellulose in superwood. For aluminum samples, a thin layer (typically a few nanometers) of oxide film on the surfaces provides hydrogen/chemical bond to MMA structure in the adhesive layer. The failure strength of the superwood-to-aluminum joint sample is about 50% higher than that of natural wood to natural wood joint sample and comparable to that of aluminum-to-aluminum joint sample.
Role of prior intratympanic gentamicin and corticosteroids therapy on speech understanding in patients with Menière's disease after cochlear implantation
Authors: Thangavelu Kruthika , Gillhausen Frederic , Weiß Rainer M. , Mueller-Mazzotta Jochen , Stuck Boris A. , Reimann Katrin 
Published: February 2024

Abstract
Aim
Intratympanic injection of corticosteroids (ITC) and gentamicin therapy (ITG) are widely used treatments for vertigo in Meniere’s disease (MD). Even though studies show good results after cochlea implantation (CI) in MD patients when compared to non-MD groups, there is no indication on the effect of ITC and ITG prior to CI on hearing after CI. This study compares the post-operative hearing of CI patients with and without MD and patients who have received ITG or ITC prior to CI.

Methods
In a retrospective case control study, adult patients with MD who received CI from 2002 till 2021 were compared to a matched control group of CI patients without MD. Patients with prior ITC/ITG were extracted from MD group. Pre-operative audiological results were measured and trends across post-operative monosyllabic word recognition score at 65 decibels (WRS65CI) at switch-on, 3–6 months, 1 year and last yearly value were analyzed across all groups.

Results
28 MD ears were compared with 33 control ears. From MD ears 9 had received ITG and 6 ITC prior to CI. WRS65CI increased significantly with time within MD and control groups, but no difference in WRS65CI was found between these 2 groups. ITG ears showed fluctuating WRS65CI after CI with no change across time, while ITC ears showed significant increase in trend of WRS65CI values across time.

Conclusion
MD and non-MD patients showed comparable hearing results after CI. Prior ITC might positively influence hearing preservation after CI in MD patients whereas ITG group showed fluctuating hearing.
Influence of at-risk family interactions on the course of psychiatric care in adolescence
Authors: Robin M. , Surjous L. , Belbèze J. , Bonnardel L. , Varlet M. , Silva J. , Lamothe J. , Essadek A. , Falissard B. , Cohen D. , Corcos M. 
Published: February 2024

AbstractDysparenting, referring to inappropriate parental attitudes, is a vulnerability factor for mental disorders during adolescence and a therapeutic leverage, yet clinicians lack reliable tools to assess it in daily clinical practice. Moreover, the effect of this dysparenting on the amount of psychiatric care remains unclear. The Family and Care study aims to develop the at-risk family interactions and levers (ARFIL) scale, a comprehensive 30-item clinical scale, and to assess in a cross-sectional design, the impact of these at-risk family interactions on the care of adolescents (n = 425) hospitalized in psychiatry and aged 13–19 years old. Factorial analysis shows that the ARFIL scale consists of three main dimensions associated with cohesion/conflicts, love/hostility, and autonomy/control with good psychometric properties. Multivariate regressions show that the ARFIL intensity score predicts the duration of hospital care, regardless of age, gender, medical severity on admission, assessed by the Global Assessment of Functioning scale, the presence of maltreatment and psychiatric diagnoses. Moreover, the ARFIL diversity score (number of items present regardless of their severity) predicts both the number and duration of hospitalizations. At-risk family interactions are a determining dimension of psychiatric adolescent care, and the ARFIL scale could constitute a valuable tool, not only for holistic evaluation and treatment, but also for prevention.
Sponsored search advertising and inventory replenishment: a decision support framework for an online retailer
Authors: Tunuguntla Vaishnavi , Basu Preetam , Rakshit Krishanu , Papadopoulos Thanos 
Published: February 2024

AbstractSponsored search advertising has steadily emerged as one of the most popular advertising tools in online retail. Customers prefer search results that appear on the top to those that appear lower and are willing to pay more for products/brands that appear higher on the search. Sponsored search has a higher conversion efficiency and impacts demand more endogenously through the ranking on the search page than traditional advertising. Online retailers (e-tailers) invest aggressively in bidding to ensure they are ranked high on the search pages. The dynamic nature of sponsored search entails a higher degree of inventory readiness, and e-tailers must dovetail their sponsored search advertising strategy to drive traffic with the level of inventory to avoid consumer disappointments due to stockouts. Extant research has not delved into this critical aspect of sponsored search advertising. We endeavor to solve this business problem for an e-tailer in a dynamic stochastic setting and provide a multi-threshold decision support framework based on different inventory levels. The policy identifies inventory levels: (i) at which a retailer should not place an order, (ii) her desired level of inventory, and (iii) a ceiling up to which no bids are placed. The e-tailer can use our proposed framework to derive an inventory based sponsored search advertising campaign that ensures synchronization between bids and inventory and increases profits. Our results show that customers’ sensitivity to the website’s search rank and variation in reservation price impact the e-tailer's inventory and sponsored search bidding decisions.
Drivers of undergraduate students’ learning perceptions in the blended learning environment: The mediation role of metacognitive self-regulation
Authors: ElSayad Ghada 
Published: February 2024

AbstractIn student-centric learning environments, such as blended learning, students’ metacognitive self-regulation is required to plan, monitor, and control their learning processes and achieve positive learning outcomes. The lack of metacognitive self-regulation may lead students to encounter difficulties that, eventually, affect their learning perceptions. Therefore, understanding how to drive students' metacognitive self-regulation is essential to delivering an effective blended learning process that supports students' learning perceptions. This study examines the structural relationships between academic self-efficacy, student–student interaction, student–lecturer interaction, metacognitive self-regulation (including planning, monitoring, and regulating), and perceived learning using structural equation modeling. The data were collected from 1675 undergraduate students who experienced blended learning at Egyptian universities. The findings revealed that academic self-efficacy, student–student interaction, and student–lecturer interaction have significant direct effects on the planning, monitoring, and regulating dimensions of metacognitive self-regulation. Furthermore, metacognitive self-regulation dimensions not only influence perceived learning but also mediate the effects of academic self-efficacy, student–student interaction, and student–lecturer interaction on perceived learning, except for monitoring, which has an insignificant mediation effect on the relationship between student–student interaction and perceived learning. The findings of this study may help researchers, practitioners, and stakeholders gain deep insights regarding how to promote tertiary students’ metacognitive self-regulation and learning perceptions during the blended learning experience.
Broadening the Climate Movement: The Marcha das Margaridas’ Agenda for the Climate (and Other) Crises
Authors: Teixeira Marco Antonio , Motta Renata 
Published: February 2024

AbstractClimate movements led by students and the youth worldwide (and in particular, those in richer economies) have been recognized as having a formidable voice and making important contributions towards a more radical societal transformation to face the climate crisis. However, little is said about the contribution of popular sectors, who have been mobilizing for decades and demanding broader structural transformations—with proposals that tackle environmental issues more broadly and the climate crisis in particular—but who are not directly involved in climate politics arenas, such as the United Nations Climate Change conferences. Usually portrayed as vulnerable, as those most affected by climate events, as victims and receivers of adaptation strategies, or, as resilient, rarely do popular sectors appear as agents of transformation. Critical scholars have advocated for understanding the climate crisis as part of multiple crises, including the biodiversity crisis, a crisis of care, and a crisis of democracy. Situating our article within this scholarship, we argue that the scholarly and societal debate on climate change will further benefit from broadening the scope of which social subjects are considered as part of the climate movement. Based on our research with rural popular feminist movements in Brazil, and in particular, the coalition Marcha das Margaridas, we address the following questions: how are their diagnostics of, and proposals to, overcome the climate crisis embedded in their broader project of transformation? Additionally, how does their political identity within class, gender, and rural categories of inequality inform their positions?
Numerical investigation of thermo-hydraulic performance of perforated rectangular and sinusoidal vortex generators in a double-pipe heat exchanger
Authors: Wang Yanru , Foo Ji-Jinn , Tran Manh-Vu , Nair Sayshar Ram , Oon Cheen Sean 
Published: February 2024

AbstractVortex generators (VGs) are utilized in heating and cooling systems to enhance heat transfer efficiency for energy savings. This study investigates the thermo-hydraulic performance of using the rectangular vortex generators (RVG) and the sinusoidal vortex generator (SVG) with and without holes on the annular side of a double-pipe heat exchanger (DPHE) for turbulent regimes. The numerical analysis is conducted for different angles of attack (α) (15°, 45°, and 75°) and spacings between VGs (60, 100, and 300 mm). By comparing the heat transfer behavior for a given α, the RVG cases present a higher heat transfer when compared to the SVG cases, with an exception for the 15° case. The configuration with a low α and slight curvature augments flow velocities and vortex strength, thereby enhancing heat transfer efficiency. Moreover, the 15° SVGs-hole case demonstrates a higher Nusselt number compared to the no-hole case. Adding holes in the VG significantly reduces the pressure drop for the 45° and 75° cases, while it remains the same at the 15° case. Additionally, the 75° RVG case yields the highest Nusselt number among the studied cases, with an enhancement of 42.4% when compared to the smooth pipe at the Reynolds number of 5,711. The best performance evaluation criterion (PEC) is achieved by the 15° SVGs-hole case. When the effect of different spacings is examined, the spacing of 60 mm provides the highest PEC of 1.22. In short, the present study provides valuable insights for optimizing VG design and enhancing overall system performance in DPHEs.
An improved methodology to restrict the range of motion of mechanical joints
Authors: Rodrigues da Silva Mariana , Marques Filipe , Tavares da Silva Miguel , Flores Paulo 
Published: February 2024

AbstractJoints with rotational degrees of freedom, for instance, revolute, spherical, or universal joints, are commonly utilized in real-world scenarios. In the multibody systems methodology, mechanical joints usually are formulated as classical kinematic constraints such that there is no restriction of the range of motion (RoM) of the joint. Thus, the formulation must include additional restrictions to prevent the joints from performing unacceptable movements and to avoid unrealistic configurations of the connected bodies. Therefore, the aim of this work is to propose a methodology to restrict the RoM of mechanical joints. Joint resistance moments are applied to the bodies connected by the joint to mimic the dissipative behavior of the materials constituent of joints and to prevent unacceptable configurations of those bodies. The proposed methodology aims to extend and improve a previously published study, specifically in the definition of the RoM limits, calculation of the penalty moments, and establishment of their direction of application. Enhanced methods to deal with the detection of unacceptable joint configurations, namely the elliptical and polynomial approaches, are proposed. A parametrization procedure is described to correctly calculate the direction of the penalty moments to apply to the connected bodies. The methodology is investigated in the dynamic modeling and simulation of one demonstrative example of application, namely a simple pendulum. A parametric analysis is performed to assess the influence of the methodology parameters in the response of the model. The methodology allows the correct restriction of the RoM of joints, while preserving the mechanical energy of the system.
New Approach to Measure Wellbeing: A Case Study on Bangladesh
Authors: Hasan Mohammad Rajib , Jayasinghe Maneka , Selvanathan Eliyathamby A. 
Published: February 2024

AbstractUnderstanding wellbeing is fundamental to any effort to enhance it. Using the latest World Values Survey (WVS), this study examines the incidence, intensity, and determinants of wellbeing in Bangladesh by constructing a multidimensional wellbeing index (MDWI). The study also provides some insights into how wellbeing changed during 2002–2018 in Bangladesh. The MDWI is calculated using twenty-five indicators corresponding to seven domains. The results indicate that, on average, Bangladeshi people experience a moderate level of wellbeing, and the health domain is the main contributor to wellbeing followed by finance, culture, safety, governance, religion, and science and technology. Intertemporal analysis reveals that over time, people’s wellbeing has increased. Notable differences in wellbeing were observed among the social class groups and administrative divisions. Gender, education, and social class groups appeared to be significantly and positively associated with wellbeing in Bangladesh while age and political party affiliation have significant and negative associations with the MDWI. The regression estimation results based on MDWI appeared robust with those of the widely used self-rated life satisfaction. The results can be used as valuable policy guidelines that improve human wellbeing, which is critical for achieving sustainable development goals in Bangladesh and other developing countries.
Boosting HPC data analysis performance with the ParSoDA-Py library
Authors: Belcastro Loris , Giampà Salvatore , Marozzo Fabrizio , Talia Domenico , Trunfio Paolo , Badia Rosa M. , Ejarque Jorge , Mammadli Nihad 
Published: February 2024

AbstractDeveloping and executing large-scale data analysis applications in parallel and distributed environments can be a complex and time-consuming task. Developers often find themselves diverted from their application logic to handle technical details about the underlying runtime and related issues. To simplify this process, ParSoDA, a Java library, has been proposed to facilitate the development of parallel data mining applications executed on HPC systems. It simplifies the process by providing built-in scalability mechanisms relying on the Hadoop and Spark frameworks. This paper presents ParSoDA-Py, the Python version of the ParSoDA library, which allows for further support of commonly used runtimes and libraries for big data analysis. After a complete library redesign, ParSoDA can be now easily integrated with other Python-based distributed runtimes for HPC systems, such as COMPSs and Apache Spark, and with the large ecosystem of Python-based data processing libraries. The paper discusses the adaptation process, which takes into consideration the new technical requirements, and evaluates both usability and scalability through some case study applications.
Patient Experiences Navigating Care Coordination For Long COVID: A Qualitative Study
Authors: MacEwan Sarah R. , Rahurkar Saurabh , Tarver Willi L. , Forward Cortney , Eramo Jennifer L. , Teuschler Lauren , Gaughan Alice A. , Rush Laura J. , Stanwick Stacy , McConnell Erin , Schamess Andrew , McAlearney Ann Scheck 
Published: February 2024

Abstract
Background
Little is known about how to best evaluate, diagnose, and treat long COVID, which presents challenges for patients as they seek care.

Objective
Understand experiences of patients as they navigate care for long COVID.

Design
Qualitative study involving interviews with patients about topics related to seeking and receiving care for long COVID.

Participants
Eligible patients were at least 18 years of age, spoke English, self-identified as functioning well prior to COVID infection, and reported long COVID symptoms continued to impact their lives at 3 months or more after a COVID infection.

Approach
Patients were recruited from a post-COVID recovery clinic at an academic medical center from August to September 2022. Interviews were audio-recorded, transcribed, and analyzed using thematic analysis.

Key Results
Participants (n=21) reported experiences related to elements of care coordination: access to care, evaluation, treatment, and ongoing care concerns. Some patients noted access to care was facilitated by having providers that listened to and validated their symptoms; other patients reported feeling their access to care was hindered by providers who did not believe or understand their symptoms. Patients reported confusion around how to communicate their symptoms when being evaluated for long COVID, and they expressed frustration with receiving test results that were normal or diagnoses that were not directly attributed to long COVID. Patients acknowledged that clinicians are still learning how to treat long COVID, and they voiced appreciation for providers who are willing to try new treatment approaches. Patients expressed ongoing care concerns, including feeling there is nothing more that can be done, and questioned long-term impacts on their aging and life expectancy.

Conclusions
Our findings shed light on challenges faced by patients with long COVID as they seek care. Healthcare systems and providers should consider these challenges when developing strategies to improve care coordination for patients with long COVID.