bluuebunny/crossref_metadata_2025_split huggingface dataset:
Patiëntgerapporteerde waarderingen van urologische kwalitatieve zorg: een kwaliteitsonderzoek op ZorgkaartNederland
Authors: Feikema Astrid A. H. , van Balken Michael R. 
Published: October 2022

SamenvattingVia ZorgkaartNederland kunnen patiënten hun waardering per specialist anoniem delen. Aan die waardering wordt door beleidsbepalers veel waarde gehecht. Daarom hebben we gekeken naar de mate waarin deze beoordelingen voor urologen representatief zijn. Hiertoe verzamelden we op geanonimiseerde wijze van alle urologen hun demografische gegevens, waarderingen en het type ziekenhuis waar de uroloog werkzaam is. Daaruit blijkt dat op ZorgkaartNederland 411 urologen staan geregistreerd, met een maximum van 256 beoordelingen tot en met geen enkele beoordeling. In een zelfstandig behandelcentrum werkzame urologen bleken significant meer beoordelingen op ZorgkaartNederland te ontvangen (p < 0,001) dan in de kliniek werkzame urologen. Van het totaal aantal urologen kreeg slechts 27% genoeg beoordelingen voor een betrouwbaar beeld zoals ZorgkaartNederland dat zelf heeft gedefinieerd. Daarbij lieten de waarderingen een trend zien van met name extreem hoge tegenover extreem lage cijfers. Daarom concluderen we dat patiëntgerapporteerde waarderingen op ZorgkaartNederland onvoldoende representatief zijn voor het bepalen van kwaliteit van urologische zorg.
Determination of mining-induced stresses using diametral rock core deformations
Authors: Li Yizhuo , Mitri Hani S. 
Published: October 2022

AbstractKnowledge of ground stresses is crucial for ground control activities such as the design of underground openings, selection of support systems, and analysis for stability. However, it is a known fact that far field stresses experience changes in orientation and magnitude due to the presence of geological structures and due to the excavations created by mining activities. As a result, in-situ stresses around drifts, ramps, and stopes in underground mines are quite different from far field or pre-mining stresses. The purpose of this research is to develop a simple and practical methodology for determining in-situ stresses. Stress relief occurs once the rock core is drilled off. Such relief is a function of the surrounding stress field. This study uses exploration rock cores that are drilled off for the purpose of orebody definition in the underground mine. The method measures and analyzes the diametral core deformations in laboratory. Two case studies from operating underground mines are presented for demonstration. In these case studies, rock core deformations are measured with a customized test apparatus and rock samples were prepared and tested for Young’s modulus and Poisson’s ratio. The differential stress, namely the difference between the local principal stresses in the plane perpendicular to the core rock axis is calculated. It is shown that this methodology is useful for determining the brittle shear ratio in the rock mass, which is of primary interest to ground control studies.
The Use of Neuronal Response Signals as Early Biomarkers of Dyslexia
Authors: Carrasco Andres , Carrasco Kelly D. 
Published: October 2022

Abstract

Objectives
Brain imaging techniques have broadened our understanding of structural and functional properties of neuronal networks in children with developmental disabilities. The present work examines current models of neuronal response properties implicated in dyslexia and reading difficulties.

Methods
This review analyzes the use of functional techniques (fMRI and EEG) employed in the assessment of neuronal markers associated with reading ability.

Results
Neuro-imaging studies have provided evidence of neuronal networks involved in the emergence of reading fluency. Using this information, it is now possible to employ physiological assessments in the screening of reading ability before behavioral evaluations can be conducted.

Conclusions
Analyses of neuro-imaging studies show that abnormal neuronal activation in specific brain areas can be used to help identify reading impairments in children. These neuronal assessments permit earlier identification of dyslexia than those requiring behavioral assessments.
‘More than Robots’: Reviewing the Impact of the FIRST® LEGO® League Challenge Robotics Competition on School Students’ STEM Attitudes, Learning, and Twenty-First Century Skill Development
Authors: Graffin Michael , Sheffield Rachel , Koul Rekha 
Published: October 2022

AbstractThe internationalFIRST® LEGO® League (FLL): Challengeis a popular educational robotics and STEM competition designed to promote primary and early high school students’ STEM interests and careers, and twenty-first century skill development. TheFLL Challengecurrently involves over 318,000 students (aged 9–16 years) in approximately 110 countries. In this paper, we present a semi-systematic historical review of the research literature focussed on the competition’s impact on school students’ STEM attitudes, learning, and twenty-first century skill development. Through our review process, we found a total of 26 publications between 2004 and 2022 which met our inclusion criteria, and identified the emergence and development of three significant historical research themes: (1) impacts on students’ motivation, STEM learning, and attitudes, (2) development of twenty-first century skills, and (3) coaching/pedagogical strategies to support student learning and skill development. The first theme was further refined through three subcategories focussed on impacts on female participants, ethnic minority groups, and students with special needs. International research findings regarding the impacts ofFLL Challengeparticipation on students’ motivation, STEM attitudes, and learning were positive for all student groups, especially female participants, but not always statistically significant. Findings regarding positive short-term impacts on twenty-first century skill development were broadly consistent, but long-term impact findings were inconclusive. The influence of coaches’ skills and pedagogical expertise upon students’ learning and skill development in theFLL Challengeis a potentially underrepresented area of research.
Severe and Prolonged Liver Damage in Pityriasis Rubra Pilaris Treated with acitretin: a Case Report
Authors: Rak Katrin , Hamm Henning , Kerstan Andreas , Kolb-Mäurer Annette , Goebeler Matthias 
Published: October 2022

AbstractAcitretin is a systemic retinoid that is used in dermatology for treatment of various inflammatory and especially hyperkeratotic diseases. Elevation of liver enzymes may occur occasionally but normally resolves spontaneously, at the latest after termination of acitretin. However, it can very rarely develop into a life-threatening adverse event including drug-induced liver injury (DILI). A 45-year-old man with classical pityriasis rubra pilaris, a frequently severe, inflammatory skin disease, was started on acitretin. After a seemingly harmless elevation of transaminases, a few weeks after initiation of acitretin, the patient experienced a dramatic course of liver injury with hepatic jaundice though acitretin was stopped immediately. Eventually, laboratory values recovered upon high-dose oral prednisolone therapy. Prescribing physicians should keep in mind that acitretin might induce severe liver injury. Even after termination of acitretin laboratory values should be monitored for a while in order to recognize symptomless but harmful drug-induced liver injury in time.
Biochemical and histopathological alterations induced by subchronic exposure to zinc oxide nanoparticle in male rats and assessment of its genotoxicicty
Authors: Ramadan Amal G. , Yassein Ahmed A. M. , Eissa Eissa A. , Mahmoud Mohammed S. , Hassan Gamal M. 
Published: October 2022

AbstractIn the food and fertilizer industries, zinc oxide nanoparticles (ZnO-NPs) are frequently utilized. Our study conducted to assess the genotoxicity, biochemical alterations and histopathological parameters of ZnO NPs with a particle size of 30 ± 5 nm were orally administered to rats once daily at doses of 100, 200, 300, 400, and 600 mg/kg for ten week. The experiment involved the use of 30 Sprague–Dawley male rats exposed to various concentrations of ZnO-NPs. After the adaptation period, six groups were created out of the thirty rats (Five rats per group). Rats in Group 1 (G1), known as the control group, were fed a standard synthetic meal and had unlimited access to drinking water ad libitum, while those in the other five groups received oral gavage treatments with various doses of zinc oxide nanoparticles over a 10-week period. The results indicated that ZnO-NPs induces a lowering in body weight beginning in the sixth week while increasing serum AST, ALT, creatinine, and uric acid activity. However, the addition of different concentrations of ZnO NPs compared to the control caused insignificantly decreased on the plasma glucose level in all treated animals. Numerous chromosomal aberrations, including fragments, chromosome rings, chromatid breaks, end-to-end association, and centric fusion, were observed through cytogenetic investigation. When compared to the control group, hepatic vacuolation, large sinusoidal dilatation, degenerative alterations, and cellular congestion were observed in the liver of the male rats treated with 400 and 600 mg/kg of ZnO-NPs. According to the findings of in vivo genotoxicity experiments, rats' bone marrow cells, liver, and kidney can exhibit genotoxicity and cytotoxicity after exposed to ZnO NPs with particle sizes of 30 nm for ten weeks. The findings of this study could raise more concerns regarding the potential damage to human health associated with the widespread use of ZnO NPs.
Generalizations of forest fires with ignition at the origin
Authors: Comets Francis , Menshikov Mikhail , Volkov Stanislav 
Published: October 2022

AbstractWe study generalizations of the forest fire model introduced in [4] and [10] by allowing the rates at which the trees grow to depend on their location, introducing long-range burning, as well as a continuous-space generalization of the model. We establish that in all the models in consideration the expected time required to reach a site at distance x from the origin is of order
$(\!\log x)^{(\!\log 2)^{-1}+\delta}$
for any
$\delta>0$
.
Looking over the builders’ work: foreign architects, artisans, and marble at Meninx (Djerba)
Authors: Lipps Johannes 
Published: October 2022

AbstractThroughout the second century AD, the civic centres of the wealthy coastal cities of Africa Proconsularis underwent deep-rooted changes. Up to this point local stone had been largely employed for their buildings, but from the Hadrianic period onwards there was an increasing use of marbles, which were imported with considerable efforts and at great expense. These marbles came primarily from Italy, Greece, and Asia Minor, and brought with them new architectural concepts, as well as architects and artisans who have been generally identified as ‘Italian’ and ‘Eastern’ in past scholarship. This article will examine a temple, a structure presumed to be a portico, and a basilica from the harbour city of Meninx, located in southern Djerba (Tunisia). The exceptionally good preservation of these buildings’ architectural components and the documentation produced during their on-site recording in 2017–18 allow for a detailed understanding of their original building processes. This will show how mobile the building industry of the Roman Empire was during the second century AD, which in turn challenges any attempts of an overly schematic territorial placement of architectural concepts, building traditions, and the provenance of the artisans themselves.
Causes for discrepancies in ground effect analyses
Authors: Barber T. J. , Leonardi E. , Archer R. D. 
Published: October 2022

AbstractAlthough many researchers, from a number of industries, have studied the aerodynamics of ground effect conditions, published research remains inconclusive. Published results are frequently found to conflict and modeling procedures (in both computational and experimental situations) vary. In this paper, existing research is reviewed and the methods used in obtaining the results are compared. Possible causes for the discrepancies in the published work are outlined, including the inappropriate specifications of boundary conditions and the neglect of viscosity in some computational analyses. Computational and experimental analyses are then performed to determine if these identified areas do cause inconsistencies in results and to also determine accurate simulation procedures.
Unsteady aerodynamic calculations using three-dimensional Euler equations on unstructured dynamic grids
Authors: Sinhamahapatr K. P. 
Published: October 2022

AbstractThis paper presents an algorithm to solve the three-dimensional unsteady Euler equations on unstructured tetrahedral meshes using a dynamic mesh algorithm. The driving algorithm is an upwind biased implicit second order accurate cell-centered finite volume scheme. The spatial discretisation technique involves a naturally dissipative flux-split approach that accounts for the local wave propagation characteristics of the flow and captures shock waves sharply. A continuously differentiable flux limiter has been employed to eliminate the spurious oscillations near shock waves, generally arising in calculations involving upwind biased schemes. The temporal discretisation is also second order accurate and uses a Newton linearisation for unsteady calculations. To calculate time dependent flows a dynamic mesh algorithm has been implemented in which the mesh is moved to conform to the instantaneous position of the body by modelling each edge of each cell by a spring. The paper presents a description of the solver and the grid movement algorithm along with results and comparison that assess their capabilities.
Hearing loss on the flight deck – origin and remedy
Authors: Bagshaw M. , Lower M. C. 
Published: October 2022

AbstractRoutine periodic audiometry performed as part of the statutory medical examination of flight crew employed by a major international airline indicated that up to 27–5% may suffer noise induced hearing loss, with 10-8% showing unilateral hearing loss. This was considered to result from the practice of listening to radio communications through a headset covering one ear only, leaving the other ear uncovered to allow direct conversation between crew members on the flightdeck. Ambient noise levels at the crew seats and noise levels from crew headsets were measured on a sample of aircraft and routes using a Kemar acoustic manikin. Noise levels on the flightdecks were 70-79dB(A)Leqaveraged over a flight of typically seven to ten hours duration. Noise levels from headsets were 77-89dB(A)Leqbeing 80dB(A) or higher on 80% of flights, and 85dB(A) or higher on 40% of flights. Five prototype or production active noise reducing (ANR) headsets were evaluated in flight and in the laboratory. It was shown that the better examples, worn to cover both ears, would allow flight crew to reduce headset volumes so reducing risk to their hearing.
Limit-cycle oscillation prediction for non-linear aeroelastic systems
Authors: Sedaghat A. , Cooper J. E. , Wright J. R. , Leung A. Y. T. 
Published: October 2022

AbstractThis paper describes part of an investigation into the prediction and characterisation of limit cycle oscillations occurring in non-linear aeroelastic systems. Through the use of a modified version of normal form theory, it is shown how it is possible to predict the limit-cycle oscillations and characterise their stability. The approach is analytical and does away with the need for an excessive amount of time marching iterative numerical simulation of the system. The methodology is demonstrated upon a simple two degrees-of-freedom aeroelastic wing model with cubic stiffness. A good agreement was obtained between the analytical prediction and numerical simulations.
Aeroelastic computations using algebraic grid motion
Authors: Allen C. B. 
Published: October 2022

AbstractCoupling an unsteady flow-solver with a structural model offers the opportunity to simulate aeroelastic behaviour of wings and rotor blades. The moving and deforming surfaces resulting from unsteady simulations require deforming meshes during the simulation, and it is common to use simple interpolation of surface displacements and velocities onto the initial undisturbed mesh. However, aeroelastic simulations can result in large displacements and deformations of solid surfaces, and simple interpolation of perturbations results in poor grid quality and possible grid crossover. A new interpolation technique is presented which is still simple in that it is driven solely by surface motion, but represents rotational effects near the solid surface, to maintain grid quality there. Furthermore, the scheme is fully analytic, so is very cheap computationally and results in grid speeds also being available analytically. Results, in terms of unsteady grid motion and flow solution, show the scheme to be effective and efficient.
Optimising wing lift distribution to minimise wake vortex hazard
Authors: Graham W. R. 
Published: October 2022

AbstractThe aim of this work is to investigate how the wake vortex hazard generated by an aircraft can be reduced by modifying the wing lift distribution. The wake associated with a given lift distribution is simulated with a two-dimensional, in viscid ‘vortex method’. A numerical optimisation technique is used to guide the modifications so that a hazard measure, based on the rolling moment induced on a following aircraft encountering the wake, is minimised. The results show that a significant (~20–25%) reduction in hazard compared with conventional high-lift configurations can be achieved, via lift distributions that have a local minimum between the regions contributing to the flap and tip vortices. The counter-signed vorticity associated with this minimum appears to prevent the tip and flap vortices from merging, resulting in a safer wake. Furthermore, the hazard reduction is robust to variations in other features of the lift distribution and should thus be achievable in practice.
Surface thermometry by laser-induced fluorescence of Dy3+:YAG
Authors: Kontis K. , Syogenji Y. , Yoshikawa N. 
Published: October 2022

AbstractA novel, non-intrusive, high spatial and temporal resolution thermal imaging system, based on the fluorescence properties of a dysprosium doped yttrium-aluminum-garnet (Dy3+:YAG) thermographic phosphor, has been developed. In this system, the phosphor coating on the test surface is excited by a pulsed Nd:YAG laser. The resulting fluorescent emission of the temperature sensitive 456nm transition and that of the temperature independent 496nm transition, are acquired using a pair of image-intensified charged coupled device cameras. The ratio of the acquired emissions is then correlated to temperature. The Dy:YAG phosphor displays temperature sensitivity in the range of 295–l,350K (with possibility up to 1,800K). Temperature measurements obtained from the surface of a disk heated by an impinging jet, demonstrate the feasibility of this technique for general heat transfer studies involving significant unsteadiness and transient phenomena.
Mechanism of windward vortex shocks about supersonic slender bodies
Authors: Princet S. A. , Qin N. 
Published: October 2022

AbstractA detailed numerical study has been performed to investigate the origin and mechanism of the formation of windward shocks that have been observed on inclined slender bodies at supersonic speeds inside the bow shock wave around the body. It is shown that the feature is associated with the virtual double cone-like deflection of the supersonic stream by the primary vortices and, as such, can be named the ‘vortex shock’.
Human factors in multi-crew flight operations
Authors: Orlady H. W. , Orlady L. M. 
Published: October 2022

AbstractThis paper discusses selected aviation human factors challenges in the air transport environment. Because of the authors’ background, much of this paper will be based upon the growth of human factors and airline training in transport aviation in the United States. However, parallel growth and advancements have been made in other parts of the world from the beginning of air transport and are being made in many parts of the world today. This is certainly true of Great Britain. One should never forget that air transport is a world enterprise and has been since its beginning. While it is important to recognise that cultural and other differences should be considered if they are relevant, it is equally important in air transport to recognise that common problems are solved by common solutions and can be addressed by, but are not limited to, common approaches.It is recognised that the behavioral aspect of aviation human factors deserves considerable attention, particularly in the area of training and evaluation. We have also learned that previous training criteria are not satisfactory for operation with increasingly complex aircraft being operated in an increasingly complex environment. Human errors occur with greater frequency than is often believed and can be made by anyone — even an airline captain. An inevitable consequence of this entirely human characteristic is that the role of the co-pilot has been considerably enhanced. Furthermore, the monitoring function of the pilot-not-flying, whether he/she is the captain or co-pilot, is now recognised as a critical safety function by virtually all serious operational experts.
Emended Sandbian (Ordovician) conodont biostratigraphy in Baltoscandia and a new species ofAmorphognathus
Authors: Paiste Tõnn , Männik Peep , Meidla Tõnu 
Published: October 2022

AbstractConodonts are an important biostratigraphic tool for many Phanerozoic stages. Along with graptolites, they define all global Ordovician Stage boundaries. Within the Upper Ordovician interval, a known species ofAmorphognathus tvaerensis(Bergström) is present in both Sandbian and Katian stratotype sections. Study of changes in the succession ofA. tvaerensisrevealed that elements in the upper part of its range differ morphologically quite distinctly from those in its lower part. Here, they are described as a new conodont species,A. viiraesp. nov. This new species is recognized in several Estonian and Swedish sections, with apparent occurrence also in Mójcza Quarry, Holy Cross Mountains, Poland and Black Knob Ridge, Oklahoma, USA. Detailed analysis of earlyAmorphognathuselements from Estonian and Swedish sections revealed the absence ofA. inaequalis(Rhodes) in both regions, although a conodont subzone based on this species was identified earlier by some authors. Both the absence ofA. inaequalis(Rhodes) and recognition of the new speciesA. viiraesp. nov. resulted in the revision of the conodont zonation, and a new version of it is proposed for the Sandbian Stage in the Atlantic Realm. The new zonation includes (from below)Pygodus anserinus,Baltoniodus variabilis,A. tvaerensis,B. gerdae,A. viiraeandB. alobatusConodont zones.