bluuebunny/crossref_metadata_2025_split huggingface dataset:
Digital studying in times of COVID-19: teacher- and student-related aspects of learning success in german higher education
Authors: Engel Ole , Zimmer Lena M. , Lörz Markus , Mayweg-Paus Elisabeth 
Published: March 2023

AbstractIn the wake of COVID-19, study conditions in Europe have changed dramatically. To limit contact between students and teachers, since March 2020 teaching has largely taken place digitally (remotely via digital means) and in private. Because the success of digital learning likely relies on many factors beyond good digital infrastructure conditions, this article focuses on which aspects, at both the teacher and the student levels, promote digital learning success. The large-scale student survey “Studying in Times of the Corona Pandemic” conducted at German universities and universities of applied sciences in the summer semester of 2020 offers data on how COVID-19 has affected several aspects of university studying in Germany. Here, we consider this data within the theoretical framework “theory of transactional distance” introduced by Moore (in: Moore (ed) Handbook of distance education, Routledge, 2018), according to which the success of digital teaching is influenced by dialogue, structure, and learner autonomy. Based on various regression analyses, our results show that several (digital) framework conditions must be created on both the teacher and student levels to achieve sufficient digital learning success. In this sense, our findings provide guidance on which aspects institutions of higher education should focus on when developing or updating their digitalization strategies. In accordance with collaborative learning approaches a key factor for learning success appears to be enabling peer-to-peer interactions. This finding supports our prediction that the possibility of engaging in interactive learning activities is crucial for students’ learning experience, as it might reduce the perception of transactional distance and allow for social exchange. The strongest predictor of students’ learning success turned out to be the (perceived) digital competencies of the teachers. This finding clearly emphasizes that teachers must be qualified to address the very specific challenges of teaching in digital contexts and indicates that universities may need to implement more teacher qualification programs.
Causes, costs and consequences of kinesin motors communicating through the microtubule lattice
Authors: Verhey Kristen J. , Ohi Ryoma 
Published: March 2023

ABSTRACT
Microtubules are critical for a variety of important functions in eukaryotic cells. During intracellular trafficking, molecular motor proteins of the kinesin superfamily drive the transport of cellular cargoes by stepping processively along the microtubule surface. Traditionally, the microtubule has been viewed as simply a track for kinesin motility. New work is challenging this classic view by showing that kinesin-1 and kinesin-4 proteins can induce conformational changes in tubulin subunits while they are stepping. These conformational changes appear to propagate along the microtubule such that the kinesins can work allosterically through the lattice to influence other proteins on the same track. Thus, the microtubule is a plastic medium through which motors and other microtubule-associated proteins (MAPs) can communicate. Furthermore, stepping kinesin-1 can damage the microtubule lattice. Damage can be repaired by the incorporation of new tubulin subunits, but too much damage leads to microtubule breakage and disassembly. Thus, the addition and loss of tubulin subunits are not restricted to the ends of the microtubule filament but rather, the lattice itself undergoes continuous repair and remodeling. This work leads to a new understanding of how kinesin motors and their microtubule tracks engage in allosteric interactions that are critical for normal cell physiology.
Disparities in Sports Medicine Health Care Access in Illinois High Schools: Access to Team Physicians, Athletic Trainers, and Automated External Defibrillators
Authors: Nicholson Caitlin A. , Shott Susan , Levy Nicole Boniquit , Ghannad Leda A. , Lagattuta Lane , McArdle Emily , Alland Jeremy A. 
Published: March 2023

Abstract
High school athletes have higher rates of injuries and sudden death than their college counterparts. Medical care for these athletes should include access to team physicians, athletic trainers, and automated external defibrillators. Disparities in medical care access provided by high schools for their athletes may be due to school characteristics or socioeconomic or racial factors. This study investigated relationships between these factors and access to team physicians, athletic trainers, and automated external defibrillators. Medical care access is negatively related to the percentage of low-income students and positively related to the number of sports offered. Relationships between race and access to a team physician became nonsignificant when the percentage of low-income students was considered. Physicians who treat high school athletes should consider the medical care access provided by their schools when they educate these patients about preventing and treating sports injuries.
Airway Obstruction with Blunt Neck Trauma from an Accidental High Tackle in Rugby
Authors: Kitamura Takuya , Otani Kei 
Published: March 2023

Abstract
Blunt neck trauma is an uncommon condition in sports yet life-threatening if left untreated; hence, early diagnosis and management is necessary once suspected. We report a collegiate rugby player tackled around the neck during intersquad scrimmage. He broke his cricoid and thyroid cartilage, resulting in cervical subcutaneous emphysema and pneumomediastinum and eventually, airway obstruction. Thus, he underwent cricothyroidotomy and emergency tracheotomy. After 20 d, the emphysema disappeared. However, dilation failure of the vocal cord remained, thereby requiring laryngeal reconstruction. In conclusion, blunt neck trauma can cause airway obstruction in various sports.
Graphie: A network-based visual interface for the UK's primary legislation
Authors: Tzanis Evan , Vivo Pierpaolo , Förster Yanik-Pascal , Gamberi Luca , Annibale Alessia 
Published: March 2023

Background: legislation.gov.uk is a platform that enables users to explore and navigate the many sections of the UK’s legal corpus through its well-designed searching and browsing features. However, there is room for improvement as it lacks the ability to easily move between related sections or Acts and only presents a text-only rendering of provisions. With Graphie, our novel navigational tool (graphie.quantlaw.co.uk), we aim to address this limitation by presenting alternative visualizations of legal documents using both text and graphs. Methods: The building block of Graphie is Sofia, an offline data pipeline designed to support different data visualizations by parsing and modelling data provided by legislation.gov.uk in open access form. Results: Graphie provides a network representation of the hierarchical structure of an Act of Parliament, which is typically organized in a tree-like fashion according to the content and information contained in each sub-branch. Nodes in Graphie represent sections of an Act (or individual provisions), while links embody the hierarchical connections between them. The legal map provided by Graphie is easily navigable by hovering on nodes, which are also color-coded and numbered to provide easily accessible information about the underlying content. The full textual content of each node is also available on a dedicated hyperlinked canvas. Conclusions: While we focus on the Housing Act 2004 for illustrative purposes, our platform is scalable, versatile, and provides users with a unified toolbox to visualize and explore the UK legal corpus in a fast and user-friendly way.
First century B.C.E. in the history of Aegean Greece it was an exceptionally gloomy period. Between 88 BC and 31 B.C.E. Rome's first war with Mithridates took place on its lands, and later three Roman civil wars ended here. The article is an attempt to look at these events from a Greek perspective. It shows how the fighting Romans used Greek human, financial and material resources, and what effects it had.
Authors: Pawlak Marcin 
Published: March 2023

First century B.C.E. in the history of Aegean Greece it was an exceptionally gloomy period. Between 88 BC and 31 B.C.E. Rome's first war with Mithridates took place on its lands, and later three Roman civil wars ended here. The article is an attempt to look at these events from a Greek perspective. It shows how the fighting Romans used Greek human, financial and material resources, and what effects it had.
XXXIV Ogólnopolska Konferencja Historyków Kartografii „Fortyfikacje na dawnych mapach”
Authors: Kowalkowski Adam 
Published: March 2023

W dniach 13–15 października 2022 r. odbyła się w Toruniu kolejna, XXXIV Ogólnopolska Konferencja Historyków kartografii. Organizatorami spotkania były cztery instytucje: Zespół Historii Kartografii przy Instytucie Historii Nauki PAN, Katedra Historii Wojskowej Uniwersytetu Mikołaja Kopernika w Toruniu, Muzeum Twierdzy Toruń oraz Katedra Geomatyki i Kartografii Uniwersytetu Marii Curie Skłodowskiej w Lublinie. Komitetem Naukowym i Organizacyjnym konferencji kierował płk dr Eugeniusz Sobczyński (UMK), zaś jego członkami byli: dr hab. Maciej Krotofil, prof UMK, dr hab. Dorota Michaluk prof. UMK, dr Mirosław Giętkowski (Muzeum Twierdzy Toruń), dr hab. Beata Konopska, prof. UMCS (UMCS, ZHK przy IHN PAN) i dr hab. Radosław Skrycki, prof. US (US, ZHK przy IHN PAN).
Innovation on Wings: Nonstop Flights and Firm Innovation in the Global Context
Authors: Bahar Dany , Choudhury Prithwiraj , Kim Do Yoon , Koo Wesley W. 
Published: March 2023

We study whether, when, and how better connectivity through nonstop flights leads to positive innovation outcomes for firms in the global context. Using unique data of all flights emanating from 5,015 airports around the globe from 2005 to 2015 and exploiting a regression discontinuity framework, we report that a 10% increase in nonstop flights between two locations leads to a 3.4% increase in citations and a 1.4% increase in the production of collaborative patents between those locations. This effect is driven primarily by firms as opposed to academic institutions. We further study the characteristics of firms and firm locations that are salient to the relation between nonstop flights and innovation outcomes across countries. Using a gravity model, we posit and find that the positive effect of nonstop flights on innovation is stronger for firms and subsidiaries with greater innovation mass (e.g., stocks of inventors and R&D spending), located in innovation hubs or countries that are deemed technology leaders, and that are separated by large cultural or temporal distance. This paper was accepted by Alfonso Gambardella, business strategy. Supplemental Material: The online appendix and data are available at https://doi.org/10.1287/mnsc.2023.4682 .
DEDICATED ORTHOPAEDIC ELECTIVE UNIT: OUR EXPERIENCE FROM A DISTRICT GENERAL HOSPITAL
Authors: Joseph V. , Boktor J. , Roy K.D. , Lewis P. 
Published: March 2023

The significance of ring-fencing orthopaedic beds and protected elective sites have recently been highlighted by the British Orthopaedic Association & Royal College of Surgeons. During the pandemic many such elective setups were established with various degrees of success. This study aimed to compare the functioning and efficiency of a Orthopaedic Protected Elective Surgical Unit (PESU) instituted during the pandemic with the pre-pandemic elective service at our hospital (Pre-Pandemic ward or PPW).We retrospectively collected data of all patients who underwent elective Orthopaedic procedures in a protected elective unit during the pandemic (March 2020 – July 2020) and a similar cohort of patients operated via the routine elective service immediately prior to the pandemic (October 2019 – February 2020). Various parameters were compared and analysed. To minimise the effect of confounding factors a secondary analysis was undertaken comparing total hip replacements (THR) by a single surgeon via PESU (PESU-THR) and PPW (PPW-THR) over 5 months each from March-July 2021 and March-July 2019 respectively.A total of 192 cases were listed on PESU during the studied period whereas this number was 339 for PPW. However more than half (52%) of those listed for a surgery on PPW were cancelled and only 162 cases (48%) were actually performed. PESU had a significantly better conversion rate with only 12.5% being cancelled and 168 (87.5%) cases performed. 49% (87 out of 177) of the cases cancelled on PPW were due to a ‘bed unavailability’. A further 17% (30/177) and 16% (28/177) were cancelled due to ‘emergency case prioritisation’ and ‘patient deemed unfit’ respectively. In contrast only 3 out of the 24 patients cancelled on PESU were due to bed unavailability and the main reason for cancellation here was ‘patient deemed unfit’ (9/24). Single surgeon THR, showed similar demographic features for the 25 patients on PESU and 37 patients on PPW. The average age for these patients was 63 on PESU and 69 on PPW whereas the BMI was 33 and 30 respectively. The patients on PESU also demonstrated a decrease in length of hospital stay with an average of 3 days in comparison to 4.8 days for those admitted to PPW. PROMS scores were comparable at 6 weeks with an average improvement of 16.4/48 in the PESU-THR cohort and of 18.8/48 in the PPW-THR cohort. There were no readmissions or revisions recorded in the PESU-THR cohort while the PPW-THR cohort had 1 readmission and revision.Our study shows how a small ring fenced Orthopaedic elective unit in a district general hospital, even during a global pandemic, can function more efficiently than a routine elective facility with many shared services.
HA-COATED SCREW VERSUS TITANIUM TRIANGULAR DOWEL FOR SACROILIAC JOINT FUSION: RESULTS FROM A PROSPECTIVE OUTCOME STUDY
Authors: Agarwal R , Mohanty K , Gibby M 
Published: March 2023

BackgroundProspective study to compare patient reported outcome measures (PROM) for sacroiliac joint (SIJ) fusion using HA-coated screw (HACS) vs triangular titanium dowel (TTD). First study of its kind in English literature.Methods40 patients underwent percutaneous SIJ stabilisation using HACS and TTD was used in 70 patients. Patients were followed up closely and outcome scores were collected prospectively. PROMs were collected preoperatively and 12 months after surgery. Short Form (SF)-36, Oswestry Disability Index, EuroQol-5D-5L and Majeed Pelvic Scores were collected. Shapiro-wilk test was used to determine normality of data. Mann-whitney U test was used to compared non-parametric data and Independent sample T test for parametric data.Results33 patients in HACS group and 61 in TTD group completed follow-up. There was no significant difference in all preoperative PROMs in both groups hence the data was considered comparable. All postoperative PROMs were significantly higher in the TTD group. In the HACS group, 21 patients (63%) had lysis around the screw and a sub-group analysis showed that improvement in PROMs was significantly less in patients with lysis around the screw. 4 patients with lysis around the screw were offered revision due to ongoing pain. Revision was successful in only 1 patient. In TTD group only 5 patients (8.2 %) patients had radiological evidence of lysis. Relative risk of developing lysis was 6.7 times higher in HACS group.ConclusionPercutaneous SIJ fixation procedure has been shown to have good clinical outcomes and TTD leads to significantly better patient reported outcomes compared to HACS. There is a 6.7 time higher risk of lysis with use of HACS and lysis is a risk factor for poor outcomes.
TELEMEDICINE IN ORTHOPAEDIC SURGERY: A SYSTEMATIC REVIEW OF CURRENT EVIDENCE
Authors: Fahey E. , Elsheikh M.F.H. , Davey M.S. , Rowan F. , Cassidy T.J. , Cleary M.S. 
Published: March 2023

AimsThe COVID-19 pandemic has triggered transformative change in how clinicians interact with their patients. There has been a shift away from face-to-face toward virtual consultations. However, the evidence to support this change in practice is unclear. The aim of this study was to systematically review the evidence base for virtual consultations for orthopaedics.Materials and MethodsTwo independent reviewers performed a literature search based on PRISMA guidelines, utilizing the MEDLINE, EMBASE and Scopus databases. Only studies reporting outcomes following the use of telemedicine for diagnosis, consultation, rehabilitation, and follow-up were included. Outcomes analyzed were: 1) Patient and clinician satisfaction, 2) Clinical outcome measures, and 3) Cost analysis of traditional vs teleconsultation.ResultsA total of 41 studies were included. Fifteen studies compared clinical outcomes of telemedicine against a matched traditional cohort. Of these 15 studies, two demonstrated non-inferiority, nine showed no statistically significant difference and four found telemedicine to be superior. Eleven studies recorded patient reported outcomes, which demonstrated high patient satisfaction. Nine studies reported decreased costs when telemedicine was compared to traditional care. The remaining 6 studies had varied aims and methodologies that didn't fit well with any of these sub-headings.ConclusionWhile the available evidence is limited, the studies assessed in this systematic review show that telemedicine can deliver high quality healthcare with good clinical outcomes and high patient satisfaction in a cost effective manner. Further studies are required to validate telemedicine for specific trauma and orthopaedic diagnoses.
WHAT IS THE MINIMUM LENGTH OF AN ANTERIOR CRUCIATE LIGAMENT AUTOGRAFT REQUIRED WITHIN THE FEMORAL TUNNEL TO ALLOW SATISFACTORY GRAFT FIXATION? OR IS THERE SUCH A THING?
Authors: Khanna V. , Gupta P.K. , Acharya A. 
Published: March 2023

Increasing expectations from arthroscopic anterior cruciate ligament (ACL) reconstructions require precise knowledge of technical details such as minimum intra-femoral tunnel graft lengths. A common belief of having ≥20mm of grafts within the femoral tunnel is backed mostly by hearsay rather than scientific proof.We examined clinico-radiological outcomes in patients with intra-femoral tunnel graft lengths <20 and ≥20mm. Primary outcomes were knee scores at 1-year. Secondarily, graft revascularization was compared using magnetic resonance imaging (MRI). We hypothesized that outcomes would be independent of intra-femoral tunnel graft lengths.This prospective, single-surgeon, cohort study was conducted at a tertiary care teaching centre between 2015–2018 after obtaining ethical clearances and consents. Eligible arthroscopic ACL reconstruction patients were sequentially divided into 2 groups based on the intra-femoral tunnel graft lengths (A: < 20 mm, n = 27; and B: ≥ 20 mm, n = 25). Exclusions were made for those > 45 years of age, with chondral and/or multi-ligamentous injuries and with systemic pathologies. All patients were postoperatively examined and scored (Lysholm and modified Cincinnati scores) at 3, 6 and 12 months. Graft vascularity was assessed by signal-to-noise quotient ratio (SNQR) using MRI. Statistical significance was set at p<0.05.Age and sex-matched patients of both groups were followed to 1 year (1 dropout in each). Mean femoral and tibial tunnel diameters (P =0.225 and 0.595) were comparable. Groups A (<20mm) and B (≥20mm) had 27 and 25 patients respectively. At 3 months, 2 group A patients and 1 group B patient had grade 1 Lachman (increased at 12 months to 4 and 3 patients respectively). Pivot shift was negative in all patients. Lysholm scores at 3 and 6 months were comparable (P3= 0.195 and P6= 0.133). At 1 year both groups showed comparable Cincinnati scores. Mean ROM was satisfactory (≥130 degrees) in all but 2 patients of each group (125–130 degrees). MRI scans at 3 months and 1 year observed anatomical tunnels in all without any complications. Femoral tunnel signals in both groups showed a fall from 3–12 months indicating onset of maturation of graft at femoral tunnel.Our hypothesis, clinical and radiological outcomes would be independent of intra-tunnel graft lengths on the femoral aspect, did therefore prove correct. Intra-femoral tunnel graft lengths of <20 mm did not compromise early clinical and functional outcomes of ACL reconstructions. There seems to be no minimum length of graft within the tunnel below which suboptimal results should be expected.
Feature extraction techniques for noisy distributed acoustic sensor data acquired in a wellbore
Authors: Tabjula Jagadeeshwar , Sharma Jyotsna 
Published: March 2023

The distributed acoustic sensor (DAS) is a promising technology for real-time monitoring of wellbores and other infrastructures. However, the desired signals are often overwhelmed by background and environmental noise inherent in field applications. We present a suite of computationally inexpensive techniques for the real-time extraction of the gas signatures from noisy DAS data acquired in a 5163 ft. deep wellbore. The techniques are implemented on three well-scale DAS datasets, each representing multiphase flow conditions with different gas injection volumes, fluid circulation rates, and injection methods. The proposed denoising techniques not only helped in optimizing the gas slug signature despite the high background noise, but also reduced the DAS data size without compromising the signal quality.
Strategy for Accepting New Students Post-COVID-19: A Case Study
Authors: Munawarah Munawarah , Ikhsan Ikhsan , Fajzrina Lati Nurliana Wati , Aulia Reza , Fadillah Chairun Nisa 
Published: March 2023

Purpose – The impact of COVID-19 has created new problems in the world of education. In addition to the decreasing number of students, the community prefers to provide education to children at home. It makes the education reflection worse because of the minimum number of students. For this reason, in the new normal or post-COVID-19 era, a strategy is needed to increase the number of students. In addition, the purpose of this study was to find out the strategies used in accepting new students after COVID-19. Then, find out the management of new student admissions at PAUD IT ADAR.Design/methods/approach – The method used was a qualitative methods, the research describes a descriptive narrative and is strengthened by data in the field obtained through interviews, filling out questionnaires, and direct observation.Findings – The results of this study showed that the new student acceptance strategy was carried out by distributing brochures, repairing facilities and infrastructure or modernizing facilities and infrastructure, enriching relationships, teaching creativity, and providing good service. The management function is carried out by planning related to the new student admissions program, then organizing to form several work groups and teams, for implementing initiatives referring to the initial planning following the strategy carried out, then for evaluating the activities of institutional personnel who conduct evaluation meetings.Research implications/limitations – The limitation of this study is the lack of quantitative data (numbers), which improves the theoretical findings. The strategy for accepting new students indeed post-COVID 19 in PAUD IT ADAR. Practical implications – The research suggests that adequately utilizing of the management function can effectively run the post-COVID-19 student acceptance strategy in early childhood institutions. It requires cooperation from various parties and a mature process, including planning, implementation, and evaluation. Good planning and cooperation are necessary to achieve the goal, and the implemented strategy can serve as a best practice for other early childhood education institutions.Originality/value – The management of implementing the new student admissions program post-COVID-19 can help teachers increase the number of students.
Paper type Case study