bluuebunny/crossref_metadata_2025_split huggingface dataset:
Comparing a virtual reality head-mounted display to on-screen three-dimensional visualization and two-dimensional computed tomography data for training in decision making in hepatic surgery: a randomized controlled study
Authors: Preukschas Anas Amin , Wise Philipp Anthony , Bettscheider Lisa , Pfeiffer Micha , Wagner Martin , Huber Matthias , Golriz Mohammad , Fischer Lars , Mehrabi Arianeb , Rössler Fabian , Speidel Stefanie , Hackert Thilo , Müller-Stich Beat Peter , Nickel Felix , Kenngott Hannes Götz 
Published: March 2024

Abstract
Objective
Evaluation of the benefits of a virtual reality (VR) environment with a head-mounted display (HMD) for decision-making in liver surgery.

Background
Training in liver surgery involves appraising radiologic images and considering the patient’s clinical information. Accurate assessment of 2D-tomography images is complex and requires considerable experience, and often the images are divorced from the clinical information. We present a comprehensive and interactive tool for visualizing operation planning data in a VR environment using a head-mounted-display and compare it to 3D visualization and 2D-tomography.

Methods
Ninety medical students were randomized into three groups (1:1:1 ratio). All participants analyzed three liver surgery patient cases with increasing difficulty. The cases were analyzed using 2D-tomography data (group “2D”), a 3D visualization on a 2D display (group “3D”) or within a VR environment (group “VR”). The VR environment was displayed using the “Oculus Rift ™” HMD technology. Participants answered 11 questions on anatomy, tumor involvement and surgical decision-making and 18 evaluative questions (Likert scale).

Results
Sum of correct answers were significantly higher in the 3D (7.1 ± 1.4, p < 0.001) and VR (7.1 ± 1.4, p < 0.001) groups than the 2D group (5.4 ± 1.4) while there was no difference between 3D and VR (p = 0.987). Times to answer in the 3D (6:44 ± 02:22 min, p < 0.001) and VR (6:24 ± 02:43 min, p < 0.001) groups were significantly faster than the 2D group (09:13 ± 03:10 min) while there was no difference between 3D and VR (p = 0.419). The VR environment was evaluated as most useful for identification of anatomic anomalies, risk and target structures and for the transfer of anatomical and pathological information to the intraoperative situation in the questionnaire.

Conclusions
A VR environment with 3D visualization using a HMD is useful as a surgical training tool to accurately and quickly determine liver anatomy and tumor involvement in surgery.
Plane crack problems within strain gradient elasticity and mixed finite element implementation
Authors: Chirkov Aleksandr Yu , Nazarenko Lidiia , Altenbach Holm 
Published: March 2024

AbstractAn alternative approach is proposed and applied to solve boundary value problems within the strain gradient elasticity theory. A mixed variation formulation of the finite element method (FEM) based on the concept of the Galerkin method is used. To construct finite-dimensional subspaces separate approximations of displacements, deformations, stresses, and their gradients are implemented by choosing the different sets of piecewise polynomial basis functions, interrelated by the stability condition of the mixed FEM approximation. This significantly simplifies the pre-requirement for approximating functions to belong to class C1 and allows one to use the simplest triangular finite elements with a linear approximation of displacements under uniform or near-uniform triangulation conditions. Global unknowns in a discrete problem are nodal displacements, while the strains and stresses and their gradients are treated as local unknowns. The conditions of existence, uniqueness, and continuous dependence of the solution on the problem’s initial data are formulated for discrete equations of mixed FEM. These are solved by a modified iteration procedure, where the global stiffness matrix for classical elasticity problems is treated as a preconditioning matrix with fictitious elastic moduli. This avoids the need to form a global stiffness matrix for the problem of strain gradient elasticity since it is enough to calculate only the residual vector in the current approximation. A set of modeling plane crack problems is solved. The obtained solutions agree with the results available in the relevant literature. Good convergence is achieved by refining the mesh for all scale parameters. All three problems under study exhibit specific qualitative features characterizing strain gradient solutions namely crack stiffness increase with length scale parameter and cusp-like closure effect.
Spread patterns of COVID-19 in European countries: hybrid deep learning model for prediction and transmission analysis
Authors: Utku Anıl , Akcayol M. Ali 
Published: March 2024

AbstractThe COVID-19 pandemic has profoundly impacted healthcare systems and economies worldwide, leading to the implementation of travel restrictions and social measures. Efforts such as vaccination campaigns, testing, and surveillance have played a crucial role in containing the spread of the virus and safeguarding public health. There needs to be more research exploring the transmission dynamics of COVID-19, particularly within European nations. Therefore, the primary objective of this research was to examine the spread patterns of COVID-19 across various European countries. Doing so makes it possible to implement preventive measures, allocate resources, and optimize treatment strategies based on projected case and mortality rates. For this purpose, a hybrid prediction model combining CNN and LSTM models was developed. The performance of this hybrid model was compared against several other models, including CNN, k-NN, LR, LSTM, MLP, RF, SVM, and XGBoost. The empirical findings revealed that the CNN-LSTM hybrid model exhibited superior performance compared to alternative models in effectively predicting the transmission of COVID-19 within European nations. Furthermore, examining the peak of case and death dates provided insights into the dynamics of COVID-19 transmission among European countries. Chord diagrams were drawn to analyze the inter-country transmission patterns of COVID-19 over 5-day and 14-day intervals.
Assessing the adoption of the Yavuz Battleship application in the mixed reality environment using the technology acceptance model
Authors: Kara Murat , Çakıcı Alp Neşe 
Published: March 2024

AbstractThis study concentrates on developing a mixed reality (MR) app for the historic ship Yavuz Battleship, also known as “SMS Goeben,” and assessing its acceptance using the technology acceptance model (TAM). Mixed reality blends real and virtual environments to create novel spatial experiences, bridging the gap between the virtual and real worlds. This technology enables designers to craft immersive, interactive environments that enhance users' perception of physical reality. The study employs a multi-stage methodology, including historical research, 3D model creation, digital information integration, Unity program transfer, MR environment development with the Mixed Reality Toolkit (MRTK), and implementation as a Microsoft Hololens 2 app. TAM is employed to gauge MR acceptance. Evaluation results affirm the Yavuz MR app's TAM alignment, providing structural support for similar architectural science inquiries. The research underscores the need to explore MR's architectural applications and TAM's role in measuring MR acceptance.
Age, origin and tectonic controls on rapid recent exhumation of the Sibela Mountains, Bacan, Indonesia
Authors: Hennig-Breitfeld Juliane , Hall Robert , White Lloyd T. , Breitfeld H. Tim , Forster Marnie A. , Armstrong Richard A. , Kohn Barry P. 
Published: March 2024

AbstractThe Sibela Mountains of the island of Bacan in eastern Indonesia contain one of the Earth’s youngest metamorphic complexes that is now exposed at elevations up to 2000 m. New mica 40Ar/39Ar and apatite (U–Th–Sm)/He data from metamorphic and igneous rocks indicate that these rocks were rapidly exhumed in the Pleistocene (c. 0.7 Ma). Exhumation of the metamorphosed Permo-Triassic basement (c. 249–257 Ma) was accompanied by metamorphism (recorded by schists) as well as partial melting (recorded by c. 1.4 Ma granitic dykes). These processes must have occurred at extremely high cooling and exhumation rates. The rapid exhumation on land was associated with significant subsidence in adjacent basins offshore that reach depths up to 2.4 km. Neogene metamorphic core complexes and other metamorphic complexes are well-known from eastern Indonesia, but they usually record much higher exhumation rates than those reported from older classic metamorphic core complexes found in other parts of the world and require a different formation mechanism. Unlike classic metamorphic core complexes that are characterized by low-angle detachment faults, the Bacan metamorphic rocks were exhumed on steep bounding normal faults forming a rectilinear block pattern. We suggest such complexes are termed metamorphic block complexes (MBC). The Bacan MBC is exceptionally young and like the other east Indonesian complexes was rapidly exhumed during subduction rollback. A flexure formed during arc-arc collision as the Sangihe forearc loaded the Halmahera forearc which reactivated steeply-dipping faults in a rectilinear chocolate block pattern.
Graphical abstract
Optimizing patient outcome in intracranial tumor surgery: a detailed prospective study of adverse events and mortality reduction strategies in neurosurgery
Authors: Lenga Pavlina , Kleineidam Helena , Unterberg Andreas , Dao Trong Philip 
Published: March 2024

Abstract

Introduction
Brain tumor surgery represents a critical and high-risk area within the field of neurosurgery. Our study aims to offer a comprehensive analysis of adverse events (AEs) from a prospectively maintained database at a leading neurosurgical tertiary center, with a specific focus on different types of tumor entities.

Methods
From January 2022 to September 2023, our study focused on adult patients, who underwent surgery for intracranial tumors. Each patient in this demographic was thoroughly assessed for adverse events (AEs) by their attending physicians at discharge. An AE was defined as any event occurring within the first 30 days post-surgery.

Results
A total of 1173 patients with an average age of 57.4 ± 15.3 years underwent surgical procedures. The majority of these surgeries were elective, accounting for 93.4% (1095 out of 1173), while emergency surgeries constituted 13.9% (163 out of 1173). The incidence of surgery-related AEs was relatively low at 12.7%. The most common surgical indications were meningioma and glioma pathologies, representing 31.1% and 28.2% of cases, respectively. Dural leaks occurred in 1.5% of the cases. Postoperative hemorrhage was a significant complication, especially among glioma patients, with ten experiencing postoperative hemorrhage and eight requiring revision surgery. The overall mortality rate stood at 0.8%, corresponding to five patient deaths. Causes of death included massive postoperative bleeding in one patient, pulmonary embolism in two patients, and tumor progression in two others.

Conclusions
Surgical interventions for intracranial neoplasms are inherently associated with a significant risk of adverse events. However, our study’s findings reveal a notably low mortality rate within our patient cohort. This suggests that thorough documentation of AEs, coupled with proactive intervention strategies in neurosurgical practices, can substantially enhance patient outcomes.
Diagnostic value of cone beam computed tomography for root canal morphology assessment – a micro-CT based comparison
Authors: Pires Mariana , Martins Jorge N.R. , Pereira Mário Rito , Vasconcelos Isabel , Costa Rui Pereira da , Duarte Isabel , Ginjeira António 
Published: March 2024

Abstract
Objectives
The aim of this study was to assess cone beam computed tomography (CBCT) as a root canal anatomy diagnostic tool by comparison with micro-CT gold-standard.

Materials and methods
216 two-rooted mandibular molars were first scanned in a CBCT device (200 μm voxel size) and posteriorly in a micro-CT scanner (19.61 μm). The volumes were sequentially screened to classify main root canal anatomy according to Vertucci classification, and for the presence of lateral canals and apical deltas, in both mesial and distal roots.

Results
Both methods revealed a higher prevalence of Vertucci Type II and IV in the mesial root, and Vertucci Type I in the distal root. The percentage of agreement for main root canal anatomy classification between CBCT and micro-CT scores was high (85.2%).

Conclusion
Sensibility to detect both lateral canals and apical deltas with CBCT was low. These results attest to the fact that minor anatomical changes might be difficult to identify with CBCT imaging, hampering its diagnostic value.
VR Designer: enhancing fashion showcases through immersive virtual garment fitting
Authors: Sarakatsanos Orestis , Papazoglou-Chalikias Anastasios , Boikou Machi , Chatzilari Elisavet , Jauk Michaela , Hafliger Ursina , Nikolopoulos Spiros , Kompatsiaris Ioannis 
Published: March 2024

AbstractThis paper introduces a Virtual Reality (VR) application tailored for fashion designers and retailers, transcending traditional garment design and demonstration boundaries by presenting an immersive digital garment showcase within a captivating VR environment. Simulating a virtual retail store, designers navigate freely, selecting from an array of avatar-garment combinations and exploring garments from diverse perspectives. This immersive experience offers designers a precise representation of the final product’s aesthetics, fit, and functionality on the human body. Our application can be considered as a pre-manufacturing layer, that empowers designers and retailers with a precise understanding of how the actual garment will look and behave. Evaluation involved comprehensive feedback from both professional and undergraduate fashion designers, gathered through usability testing sessions.
Intercomparison of multi-GNSS signals characteristics acquired by a low-cost receiver connected to various low-cost antennas
Authors: Marut Grzegorz , Hadas Tomasz , Nosek Jakub 
Published: March 2024

AbstractWith the increasing number of low-cost GNSS antennas available on the market, there is a lack of comprehensive analysis and intercomparison of their performance. Moreover, multi-GNSS observation noises are not well recognized for low-cost receivers. This study characterizes the quality of GNSS signals acquired by low-cost GNSS receivers equipped with eight types of antennas in terms of signal acquisition, multipath error and receiver noise. The differences between various types of low-cost antennas are non-negligible, with helical antennas underperforming in every respect. Compared with a geodetic-grade station, GPS and Galileo signals acquired by low-cost receivers are typically weaker by 3–9 dB-Hz. While the L1, E1 and E5b signals are well-tracked, only 72% and 86% of L2 signals are acquired for GPS and GLONASS, respectively. The signal noise for pseudoranges varies from 0.12 m for Galileo E5b to over 0.30 m for GLONASS L1 and L2, whereas for carrier-phase observations it oscillates around 1 mm for both GPS and Galileo frequencies, but exceeds 3 mm for both GLONASS frequencies. Antenna phase center offsets (PCOs) vary significantly between frequencies and constellations, and do not agree between two antennas of the same type by up to 25 mm in the vertical component. After a field calibration a of low-cost antenna and consistent application of PCOs, the horizontal and vertical accuracy is improved to a few millimeter and a few centimeter level for the multi-GNSS processing with double-differenced and undifferenced approach, respectively. Last but not least, we demonstrate that PPP-AR is possible also with low-cost GNSS receivers and antennas, and improves the precision and convergence time. The results prove that selection of low-cost antenna for a low-cost GNSS receiver is of great importance in precise positioning applications.
A hybrid population of Willow Warblers in the Åland Archipelago
Authors: Andersson Jesper Emanuel , Lehikoinen Petteri , Berdougo Michaëla , Jolkkonen Juho , Bensch Staffan 
Published: March 2024

AbstractDifferences in migratory behavior have been suggested to drive speciation, but the genetics underlying this process remain unknown. Identification and study of migratory divides can help us understand how differential migration can lead to reproductive isolation. Here, we genotyped Willow Warblers Phylloscopus trochilus, from the Åland islands, located in between the ranges of the differentially migrating subspecies P. t. trochilus and P. t. acredula. We found that Willow Warblers on the Åland islands were genetically intermediate to allopatric populations of both parental subspecies, providing evidence that the islands constitute a previously unknown hybrid swarm, likely to be a migratory divide.
Mrs. Dalloway and the Shecession: The Interconnectedness and Intersectionalities of Care Ethics and Social Time During the Pandemic
Authors: Balachandran Nair Lakshmi 
Published: March 2024

AbstractBusiness ethics researchers and practitioners are interested in understanding the temporal mechanisms of various managerial activities, processes, and policies. In this direction, I borrow notions of time from Virginia Woolf’s Mrs. Dalloway to examine how social time intersperses with the paid and (unpaid) care work of female employees during the pandemic. I explore how discussions of social time in connection to care work appear in newspaper discourses of “shecession”, i.e. the large-scale job/income losses experienced by women during the COVID-19 pandemic. Since shecession is a byproduct of the pandemic times, exploring the role of time in it is crucial. In fact, my findings show that the macro social time of the pandemic affects working women with care responsibilities who are situated at the intersection of multiple vulnerable social categories by simultaneously being a penalizer and a lost opportunity. Similarly, I also find that the micro social times of working women embed, stratify, and synchronize differently during the pandemic when compared to normal times. Working women with care responsibilities are thus adversely affected by both micro and macro social time changes. My findings, therefore, could be instrumental in developing and implementing inclusive policies and processes in business organizations and labor markets. In so doing, my study also indicates how a consideration of social time enriches the application of care ethics in work contexts. Ultimately, this article is also about developing caring organizations, societies, and families which care for the caregivers (working women), since receiving care is a precondition of giving care.
Geomatic tools used in the management of agricultural activities: a systematic review
Authors: Escandón-Panchana Paulo , Herrera-Franco Gricelda , Jaya-Montalvo María , Martínez-Cuevas Sandra 
Published: March 2024

AbstractManaging agricultural activity encompasses technology, geographic information, spatial data and geomatic tools as support techniques. In this framework, agricultural mapping is an essential geomatic application due to its importance in managing food systems. This research aims to analyze the state of knowledge of geomatics tools and their applications in agriculture through a systematic review of scientific documents and methodological approaches, highlighting the use of geomatics in agricultural mapping to evaluate trends in agriculture management. The study methodology consists of a scientific base of publications on geomatics and its applications in sustainable agriculture, with a quantitative analysis of production and its approaches. Subsequently, PRISMA establishes a systematic review in search of the subject’s methods, applications and trends. The results show that of the total data analyzed, 60% corresponds to general agricultural mapping for crop/water/soil mapping using satellite images. Twenty percent for land use and coverage, considering the georeferencing that contributes to agricultural territorial planning. Nine percent consider geomatic key for agricultural cadastre (plot management). In addition, 6% corresponds to precision agriculture and 5% to watershed management. The most predominant geomatics tools are: Geographic Information System (GIS), Global Positioning System (GPS), unmanned aerial vehicle (UAV) and remote sensing (RS). Also, among the most used geomatic techniques in agricultural cartography, photogrammetry in crop phenology and multispectral analysis in the optimisation and monitoring of agricultural production stand out. Studies show that the geomatic application promotes sustainability practices such as crop rotation, seeds dispersed and germinated by animals, agricultural irrigation through rivers/basins/streams, family gardens and generation of employment sources. The geomatics use is of great utility/potential for the acquisition and generation of geospatial data accurately, with time and cost savings that contribute to the decision-making of city councils, public cadastral administrations, enterprises, educational institutions and agricultural foundations.
The Validity and Reliability of the Turkish Version of the Autism Family Experience Questionnaire (AFEQ)
Authors: Eyuboglu Damla , Eyuboglu Murat , Yaylaci Ferhat , Guller Baris , Sahbudak Begum , Avunduk Aslihan , Dagli Onur Oktay , Pala Seval Caliskan , Arslantas Didem 
Published: March 2024

Abstract
The aim of this study was to examine the reliability and validity of the Turkish version of the AFEQ for Turkish parents of children with ASD. The Turkish-translated version of the AFEQ was administered to 241 parents of children aged 2–12 years with ASD to examine the construct validity and internal consistencies. Parents completed the Autism Behavior Checklist (ABC), and Quality of Life in Autism Questionnaire Parent version, along with the AFEQ. The mean age of the children of 241 individuals in the study group was 7.63 ± 3.02 and 88.4% (n = 213) were male. Cronbach’s alpha coefficient was 0.921 of the total variance. Cronbach alpha coefficients are 0.813 for the “Experience of being a parent” subscale, 0.768 for the “Family Life” subscale, 0.810 for the “Child Development, Understanding and Social Relationships” subscale, and 0.804 for the “Child Symptoms (Feelings and Behaviour)” subscale. In conclusion, the translated and culturally adapted AFEQ shows good reliability and validity to measure the priorities of autistic children and their families in Turkey. It can also be useful in monitoring the effectiveness of intervention programs and changes in the child.