bluuebunny/crossref_metadata_2025_split huggingface dataset:
Speed-up Measures and Associated Problems for Large-scale DEM-Models
Authors: Brandner Andreas , Koch Lukas Alexander 
Published: June 2023

AbstractThis contribution discusses the possibilities to increase the efficiency of large Discrete Element Method (DEM) simulations. Simulations were conducted to test particle upscaling, decreasing shear modulus and using GPU instead of CPU for the computation. The conducted simulations modelled a simple ore extraction process from a defined outlet of a stope in a cave mine. The analysis is based on the influence of the approaches on the computation speed-up and the accuracy of the result. It was found that the real shear modulus could be decreased in the simulation by a factor of 103without interfering strongly with the result, provided that the decreased shear modulus is not smaller than 108 Pa. However, a reduction of 102was found to bring the highest speed-up to the present application.For the particle upscaling in this contribution without parameter calibration, the upscaling factor should not exceed 3. Higher upscaling factors affect the results significantly. However, the flow dynamics was already differing for an upscaling factor of 2, even though the flow zones were comparable. Using a GPU instead of a CPU is only recommended if the simulation contains a high number of particles. The speed-up for a simulation with almost 250,000 particles was over 8, but the advantage diminished for less particles. Furthermore, differences in the results between CPU and GPU computation could be found, which could be a starting point for future work. In summary, this research significantly aids in the development of more efficient DEM simulations for large-scale applications, such as cave mining.
Das vaskuläre Trauma: Analyse der Versorgungsrealität in einer deutschlandweiten Umfrage
Authors: Warm Tobias Dominik , Stojanovic Tomislav ,   die Kommission Katastrophenmedizin und Gefäßtraumatologie der Deutschen Gesellschaft für Gefäßchirurgie, Stojanovic Tomislav , Bail Dorothee , Engelhardt Michael , Fellmer Peter , Hinck Daniel C. , Hyhlik-Dürr Alexander , Hyhlik-Dürr Alexander ,   die Sektion gefäßchirurgische Techniken der Deutschen Gesellschaft für Gefäßchirurgie, Hyhlik-Dürr Alexander , Hinck Daniel C. , Hoffmann-Wieker Carola , Masius Stephan , Rother Ulrich , Stübinger Axel , Zerwes Sebastian , Schönenberg Frank , Goßlau Yvonne 
Published: June 2023

Zusammenfassung
Hintergrund und Ziel der Arbeit
Die vaskuläre Beteiligung im Rahmen von Traumen ist selten. Für die Versorgung der Verletzungen gibt es nur wenige konkrete Handlungsempfehlungen, sodass von einer großen Varianz auszugehen ist. Ziel der vorliegenden Umfrage war die Statuserhebung der aktuellen Versorgungsrealität des Gefäßtraumas in Deutschland sowie die Eruierung des Bedarfs und der Form von entsprechenden Fortbildungsangeboten.

Material und Methoden
Es wurde eine Online-Umfrage über SurveyMonkey® mit den Mitgliedern der Gesellschaft für Gefäßchirurgie und Gefäßmedizin (DGG) durchgeführt.

Ergebnisse
An der Umfrage haben sich 10,6 % der angeschriebenen Mitglieder der DGG beteiligt. Hieraus ergab sich, dass die meisten Kliniken 5–10 traumatische Gefäßverletzungen pro Jahr versorgen, wobei die höchsten Behandlungszahlen erwartungsgemäß in den überregionalen Traumazentren erreicht werden. Die Versorgung des Gefäßtraumas ist nicht einheitlich, sondern findet abhängig von der anatomischen Lokalisation durch unterschiedliche Fachabteilungen statt. Kliniken für Gefäßchirurgie sind selten an der Versorgung beteiligt. Bei den meisten Befragten bestand der Wunsch nach Fortbildungen zum Erlernen von gefäßtraumatologischen Techniken.

Diskussion
Gefäßchirurgische Kliniken sind nach den vorliegenden Umfrageergebnissen selten an der Versorgung des vaskulären Traumas beteiligt. Mögliche Erklärungen hierfür liegen in lokalen und infrastrukturellen Gegebenheiten. Eine aktive Einbindung von gefäßchirurgisch ausgebildeten Ärztinnen und Ärzten in die Diagnostik und Therapie der vaskulären Traumata ist wünschenswert und sollte aktiv angeboten werden. Das Erlernen der hierfür notwendigen Techniken kann beispielsweise im Rahmen praktischer Kurse stattfinden.

Graphic abstract
Governance of disaster emergency wells in three cities in Japan affected by earthquakes
Authors: Endo Takahiro , Iizuka Tomoki , Koga Hitomi , Hamada Nahoko 
Published: June 2023

AbstractConcern has grown regarding how public and private sectors should make effective use of local groundwater to alleviate negative impacts of water-supply cutoff following an earthquake event, which can be regarded as an emergency groundwater governance problem. Existing literature on groundwater governance, however, is based on the tacit assumption of groundwater utilization under normal social conditions, and scant consideration has been given to the role of groundwater following occurrence of a natural disaster. This study conducted questionnaire surveys to reveal how groundwater was used in three cities (Kumamoto, Sapporo, and Sendai) in Japan struck by large earthquakes between 2010 and 2020. Results revealed substantial differences between these cities in terms of groundwater utilization following earthquake occurrence. The time between the restoration of the electricity supply and restoration of the waterworks, and the social capital accumulated by local governments, are indicated as possible reasons for such differences. Analysis also identified policy challenges for improved groundwater governance in an emergency: (1) establishment of a strategy for emergency water supply through combined use of groundwater and other water sources, (2) enhancement of methods for timely inspection of groundwater quality following occurrence of a disaster, (3) maintenance of records of the number of registered disaster emergency wells (DEWs), (4) creation of methods for publicizing locational information on DEWs with adequate regard for the privacy of well owners, and (5) recognition of the importance of making DEWs part of overall disaster preparedness.
Students’ geometric understanding of partial derivatives and the locally linear approach
Authors: Borji Vahid , Martínez-Planell Rafael , Trigueros María 
Published: June 2023

Abstract
We use Action-Process-Object-Schema (APOS) theory to study students’ geometric understanding of partial derivatives of functions of two variables. This study contributes to research on the teaching and learning of differential multivariable calculus and its didactics. This is an important area due to its multiple applications in science, mathematics, engineering, and technology (STEM). The study tests a previously proposed model of mental constructions students may use to understand partial derivatives through a set of activities designed to help students make the conjectured constructions. The model is based on the local linearity of differentiable two-variable functions, and the model-based activities explore the relationship between partial derivatives and tangent plane in different representations. We used semi-structured interviews with eleven students whose teacher used the three-part cycle—Activities designed with the genetic decomposition; collaborative work in small groups and Class discussion; and Exercises for home (ACE)—as pedagogical strategy. The model-based activity set based on local linearity and the ACE strategy helped students construct a geometric understanding of partial derivatives. Results led to reconsider and further refine the model. This study also resulted in improving activity sets and obtaining information on students’ construction of second-order and mixed partial derivatives.
Navigation System-Based Routing Strategies in Traffic Flows on Networks
Authors: Festa Adriano , Goatin Paola , Vicini Fabio 
Published: June 2023

AbstractNavigation choices play an important role in modeling and forecasting traffic flows on road networks. We introduce a macroscopic differential model coupling a conservation law with a Hamilton–Jacobi equation to, respectively, model the nonlinear transportation process and the strategic choices of users. Furthermore, the model is adapted to the multi-population case, where every population differs in the level of traffic information about the system.
The interaction of idioms and aspect in Polish
Authors: Klimek-Jankowska Dorota , Błaszczak Joanna 
Published: June 2023

AbstractThis study contributes to a longstanding discussion on the status of aspectual morphology and the aspectual architecture in Slavic by investigating aspectual properties of perfective and imperfective VP idioms in Polish. The investigation reveals that only lexical prefixes which can result in idiosyncratic meanings are part of basic perfective VP idioms. Building on the idea that littlevis a demarcation line for idiomatic meanings, it is concluded that lexical prefixes arevP-internal. It is also shown that basic imperfective VP idioms are compatible with some superlexical prefixes and basic perfective VP idioms are compatible with secondary imperfective morphology, which suggests that such morphology isvP-external. Further semantic analysis of the interaction of basic imperfective VP idioms with different classes of superlexical prefixes shows that the compatible ones measure over some scale associated withvP-external material or the temporal trace of an (idiomatic) event. In contrast, the incompatible ones measure over a scale encoded by a verbal predicate or impose semantic restrictions on its argument and hence they intervene in the semantics of a VP idiom. Based on stacking facts and the interaction of different classes of superlexical prefixes with secondary imperfective morphology, two classes of superlexical prefixes are distinguished:high(projected above secondary imperfective) andlow(projected below it). These observations are compatible with the view that aspectual morphology is separated from PFV and IPFV operators. The former may merge lower in the hierarchy, and the latter act at the level of AspP as phonologically null operators.
Persuasion-enhanced computational argumentative reasoning through argumentation-based persuasive frameworks
Authors: Ruiz-Dolz Ramon , Taverner Joaquin , Heras Barberá Stella M. , García-Fornes Ana 
Published: June 2023

AbstractOne of the greatest challenges of computational argumentation research consists of creating persuasive strategies that can effectively influence the behaviour of a human user. From the human perspective, argumentation represents one of the most effective ways to reason and to persuade other parties. Furthermore, it is very common that humans adapt their discourse depending on the audience in order to be more persuasive. Thus, it is of utmost importance to take into account user modelling features for personalising the interactions with human users. Through computational argumentation, we can not only devise the optimal solution, but also provide the rationale for it. However, synergies between computational argumentative reasoning and computational persuasion have not been researched in depth. In this paper, we propose a new formal framework aimed at improving the persuasiveness of arguments resulting from the computational argumentative reasoning process. For that purpose, our approach relies on an underlying abstract argumentation framework to implement this reasoning and extends it with persuasive features. Thus, we combine a set of user modelling and linguistic features through the use of a persuasive function in order to instantiate abstract arguments following a user-specific persuasive policy. From the results observed in our experiments, we can conclude that the framework proposed in this work improves the persuasiveness of argument-based computational systems. Furthermore, we have also been able to determine that human users place a high level of trust in decision support systems when they are persuaded using arguments and when the reasons behind the suggestion to modify their behaviour are provided.
Emotional intelligence and individuals’ viewing behaviour of human faces: a predictive approach
Authors: Al-Samarraie Hosam , Sarsam Samer Muthana , Alzahrani Ahmed Ibrahim 
Published: June 2023

Abstract
Although several studies have looked at the relationship between emotional characteristics and viewing behaviour, understanding how emotional intelligence (EI) contributes to individuals’ viewing behaviour is not clearly understood. This study examined the viewing behaviour of people (74 male and 80 female) with specific EI profiles while viewing five facial expressions. An eye-tracking methodology was employed to examine individuals’ viewing behaviour in relation to their EI. We compared the performance of different machine learning algorithms on the eye-movement parameters of participants to predict their EI profiles. The results revealed that EI profiles of individuals high in self-control, emotionality, and sociability responded differently to the visual stimuli. The prediction results of these EI profiles achieved 94.97% accuracy. The findings are unique in that they provide a new understanding of how eye-movements can be used in the prediction of EI. The findings also contribute to the current understanding of the relationship between EI and emotional expressions, thereby adding to an emerging stream of research that is of interest to researchers and psychologists in human–computer interaction, individual emotion, and information processing.
Spatiotemporal change and prediction of land use in Manasi region based on deep learning
Authors: Wang Jiaojiao , Yin Xiaojun , Liu Shannan , Wang Dimeng 
Published: June 2023

AbstractThe Manasi region is located in an arid and semi-arid region with fragile ecology and scarce resources. The land use change prediction is important for the management and optimization of land resources. We utilized Sankey diagram, dynamic degree of land use, and landscape indices to explore the temporal and spatial variation of land use and integrated the LSTM and MLP algorithms to predict land use prediction. The MLP-LSTM prediction model retains the spatiotemporal information of land use data to the greatest extent and extracts the spatiotemporal variation characteristics of each grid through a training set. Results showed that (1) from 1990 to 2020, cropland, tree cover, water bodies, and urban areas in the Manasi region increased by 855.3465 km2, 271.7136 km2, 40.0104 km2, and 109.2483 km2, respectively, whereas grassland and bare land decreased by 677.7243 km2 and 598.5945 km2, respectively; (2) Kappa coefficients reflect the accuracy of the mode’s predictions in terms of quantity. The Kappa coefficients of the land use data predicted by the MLP-LSTM, MLP-ANN, LR, and CA-Markov models were calculated to be 95.58%, 93.36%, 89.48%, and 85.35%, respectively. It can be found that the MLP-LSTM and MLP-ANN models obtain higher accuracy in most levels, while the CA–Markov model has the lowest accuracy. (3) The landscape indices can reflect the spatial configuration characteristics of landscape (land use types), and evaluating the prediction results of land use models using landscape indices can reflect the prediction accuracy of the models in terms of spatial features. The results indicate that the model predicted by MLP-LSTM model conforms to the development trend of land use from 1990 to 2020 in terms of spatial features. This gives a basis for the study of the Manasi region to formulate relevant land use development and rationally allocate land resources.
Post-medieval Ship Graffiti on the North Coast of Ireland
Authors: Forsythe Wes 
Published: June 2023

AbstractThe generation of boat and ship imagery in the form of graffiti has long precedents internationally. Such imagery carries with it a range of context-dependant associations and meanings. This paper presents a collection of previously undescribed graffiti from the north coast of Ireland which demonstrates features and behaviours which parallel those witnessed in a wide range of chronological situations elsewhere, while retaining context-specific resonances. The twelve graffiti depict a variety of eighteenth–nineteenth century sailing craft and one anchor. In addition, a series of names or initials provide a sense not only of authorship and identification with maritime communities but also the performative and thereby provocative nature of graffiti. This paper argues that the wider socio-economic changes taking place within these coastal communities provides a basis for understanding the resonance of such imagery across this period.
Observation on the efficacy of traditional Qigong exercise combined with Tuina manipulations in treating lower cervical disc herniation
Authors: Yang Xiaowei , Sheng Feng , Wang Saina , Wang Zhichao , Cheng Lei , Gong Chen , Wu Yi 
Published: June 2023

Abstract
Objective
To observe the efficacy of traditional Qigong exercise combined with Tuina (Chinese therapeutic massage) manipulations in treating lower cervical disc herniation (CDH).

Methods
A total of 120 CDH patients who met the inclusion criteria were randomly divided into an observation group and a control group, with 60 cases in each group. Patients in both groups were given the same Tuina manipulations. In addition, patients in the observation group practiced traditional Qigong exercise, and those in the control group did conventional neck exercise. After 8 weeks of treatment, the efficacy of the two groups was observed. Follow-up was conducted 3 months after the end of the treatment to record any recurrence.

Results
The total effective rate of the observation group was higher than that of the control group (P<0.05). The improvement in symptom scores was more significant in the observation group than in the control group (P<0.05). There was inter-group statistical significance in comparing the cross-sectional area and fatty infiltration of certain cervical muscles (P<0.05). In addition, the recurrence rate in the observation group was lower than that in the control group (P<0.05).

Conclusion
On the basis of the same Tuina manipulation treatment, the efficacy of traditional Qigong exercise in treating CDH is superior to that of conventional neck exercise, with more significant improvements in pain and quality of life and a lower recurrence rate.
Early Life Programming of Skeletal Health
Authors: Moon Rebecca J. , Citeroni Natasha L. , Aihie Riagbonse R. , Harvey Nicholas C. 
Published: June 2023

Abstract

Purpose of Review

Increasing bone mineral accrual during childhood might delay the onset of osteoporosis. We discuss the scientific evidence for early life approaches to optimising skeletal health.

Recent Findings
There is an ever-growing body of evidence from observational studies suggesting associations between early life exposures, particularly during foetal development, and bone mineral density (BMD). The findings of such studies are often heterogeneous, and for some exposures, for example, maternal smoking and alcohol intake in pregnancy or age at conception, intervention studies are not feasible. The most frequently studied exposures in intervention studies are calcium or vitamin D supplementation in pregnancy, which overall suggest positive effects on offspring childhood BMD.

Summary
Maternal calcium and/or vitamin D supplementation during pregnancy appear to have positive effects on offspring BMD during early childhood, but further long-term follow-up is required to demonstrate persistence of the effect into later life.
Daten, Algorithmen und technische Diskriminierung
Authors: Stangl Daniela 
Published: June 2023

ZusammenfassungDer Beitrag bietet einen Einblick über mögliche technische Diskriminierung durch Fachsoftware im Bereich der Arbeitssuche. Dazu wird nach einer kurzen technischen Einführung konkret an den Softwarelösungen „ALLEGRO“ der Bundesagentur für Arbeit in Deutschland und dem Arbeitsmarktchancen-Assistenzsystem des Arbeitsmarktservice in Österreich aufgezeigt, ob und inwieweit diese Softwarelösungen auf technischen Mechanismen beruhen, die Diskriminierung von Arbeitssuchenden (re)produzieren. Nach einer zusammenfassenden Schlussfolgerung werden schließlich Vorschläge für erste Schritte der persönlichen Auseinandersetzung von Sozialarbeiter_innen mit diesen Mechanismen gegeben.
Cyclicity Near Infinity in Piecewise Linear Vector Fields Having a Nonregular Switching Line
Authors: Bastos Jefferson L. R. , Buzzi Claudio A. , Torregrosa Joan 
Published: June 2023

AbstractIn this paper we recover the best lower bound for the number of limit cycles in the planar piecewise linear class when one vector field is defined in the first quadrant and a second one in the others. In this class and considering a degenerated Hopf bifurcation near families of centers we obtain again at least five limit cycles but now from infinity, which is of monodromic type, and with simpler computations. The proof uses a partial classification of the center problem when both systems are of center type.
Invariant Measures for Uncountable Random Interval Homeomorphisms
Authors: Morawiec Janusz , Szarek Tomasz 
Published: June 2023

AbstractA necessary and sufficient condition for the iterated function system$$\{f(\cdot ,\omega )\,|\,\omega \in \Omega \}$${f(·,ω)|ω∈Ω}with probabilityPto have exactly one invariant measure$$\mu _*$$μ∗with$$\mu _*((0,1))=1$$μ∗((0,1))=1is given. The main novelty lies in the fact that we only require the transformations$$f(\cdot ,\omega )$$f(·,ω)to be increasing homeomorphims, without any smoothness condition, neither we impose conditions on the cardinality of$$\Omega $$Ω. In particular, positive Lyapunov exponents conditions are replaced with the existence of solutions to some functional inequalities. The stability and strong law of large numbers of the considered system are also proven.
Valorising Wood Ash as an Effective Green Alternative Pulping Agent for Achieving a High Yield of Banana Micro-Lignocellulose Fibres of Enhanced Crystallinity
Authors: Emrith P. D. , Ramasawmy H. , Surroop D. , Das D. B. 
Published: June 2023

AbstractThis study aims to explore the use of wood ash, a common waste, as an alternative and eco-friendly pulping agent. The first and most important singularity of the study is that wood ash solution, though mild in nature, has proven to be an effective pulping agent (in comparison with the common pulping solution, sodium hydroxide): comparable lignin (45%) and hemicellulose (50%) removal, high crystallinity (72–77%) and high pulp yield (70%) were obtained. Another particularity of this study is that the reported advanced aspects of pulped banana fibres, notably the chemical functionality, crystallinity and crystallite size have been correlated with the chemical composition of the wood ash used: calcium pectinate was formed on the pulped fibre surface. It apparently played a role in enhancing the fibre crystallinity. Moreover, another specialness of this study is that non-conventional factors, which would have significant bearing during industrial scale processing, such as liquor ratio, fibre input size and duration have been investigated—the latter has shown that to attain maximum delignification, small fibre input size at a high liquor ratio of 40 for an extended period of 2 h are necessary. Finally, the pulped banana fibres (which were intended to be used for membrane fabrication for use in water purification system) have depicted their applicability in the fabrication of ultrafiltration membranes by virtue of their aspect ratio, semi-hydrophilicity (due to presence of residual lignin) and projected high mechanical strength (due to high crystallinity and low crystallite size).
Graphical Abstract
Graphical abstract showing outcomes when pulping with wood ash solution.