bluuebunny/crossref_metadata_2025_split huggingface dataset:
Enhancing agile software development in the banking sector—A comprehensive case study at LHV
Authors: Scott Ezequiel , Milani Fredrik , Kilu Erki , Pfahl Dietmar 
Published: June 2021

AbstractFinTech companies are challenging established financial institutions' dominance by offering the same products with a superior customer experience and delivering new features faster. The adoption of agile software development partially enables this competitive advantage. In response to this challenge, banks explore how they can improve their agile processes. LHV, a mid‐sized bank, uses agile practices but faces the challenge of further improvement to stay competitive with FinTech companies. In this article, we explore how LHV can improve its agile software development process. We conduct a case study at LHV where we first derive eight change proposals based on a literature review and interviews. Then, we report on how LHV implemented the change proposals and their perceived impact. Our results stress the importance of taking a coherent approach to improving agile processes by considering both business units and operations involved in the product life‐cycle. It is also necessary to align organizational structures to enable team autonomy by, for instance, decentralizing decision authority. Finally, it is beneficial to adapt agile practices to their context and have an IT architecture and technology supporting the agile approach.
Modeling serviceability performance and ultimate capacity of corroded reinforced and prestressed concrete structures
Authors: Marí Antonio , Bairán Jesús‐Miguel , Oller Eva , Duarte Noemi 
Published: June 2021

AbstractCorrosion reduces the area of reinforcement steel, affects its mechanical properties, the bond properties, and produces concrete cracking. Thus, reduction of the bearing capacity and stiffness, increments of deflections and redistribution of stresses and internal forces, in statically indeterminate structures, take place. In addition, the efficiency of strengthening systems of corroded structures depends on their state of stresses, strains and damage previously to strengthening. In this paper, a nonlinear and time dependent step by step analysis model for reinforced and prestressed concrete frames is presented. The model is capable of capturing the structural effects of corrosion and the effects of strengthening interventions, necessary to adequately assess corroded and strengthened structures. Several cases of corroded and strengthened structures are analyzed and the results discussed.
Postnatal maturation of glutamate clearance and release kinetics at the rat and mouse calyx of Held synapses
Authors: Yang Che Ho , Ho Won‐Kyung , Lee Suk‐Ho 
Published: May 2021

AbstractAlthough calyx of Held synapses undergo dramatic changes around the hearing onset, previous in vivo studies suggest that the calyx synapses undergo further post‐hearing maturation process. While developmental changes over the hearing onset have been extensively studied, this post‐hearing maturation process remained relatively little investigated. Because of post‐hearing maturation, previous results from studies around hearing onset and studies of post‐hearing calyx synapses are somewhat inconsistent. Here, we characterized the post‐hearing maturation of calyx synapses with regard to in vitro electrophysiological properties in rats and mice. We found that parameters for residual glutamate in the cleft during a train, EPSC kinetics, and vesicle pool size became close to a full mature level by P14, but they further matured until P16 in the rats. Consistently, the phasic and slow EPSCs evoked by action potential trains at P16 calyx synapses were not different from those at P18 or P25 under physiological extracellular [Ca2+]o (1.2 mM). In contrast, the parameters for residual current and EPSC kinetics displayed drastic changes until P16 in mice, and slow EPSCs during the train further decreased between P16 and P18, suggesting that maturation of calyx synapses progresses at least up to P16 in rats and P18 in mice.
Pentamethylcyclopentadienyl M(III) Complexes (M = Rh, Ir) Exhibiting 2,3,5,6‐tetra(2'‐pyridyl)pyrazine as Seven‐membered Chelating Ligand
Authors: Graf Marion , Böttcher Hans‐Christian , Mayer Peter 
Published: June 2021

AbstractThe synthesis and characterization of complex salts [M(η5−C5Me5)Cl(tppz)]PF6 (M=Rh, 1; M=Ir, 2; tppz=2.3.5.6‐tetra(2'‐pyridyl)pyrazine) are described. Compounds 1 and 2 were obtained by bridge‐splitting reactions of [{M(η5−C5Me5)(μ−Cl)Cl}2] (M=Rh, Ir) with tppz in MeOH at room temperature and spectroscopically characterized. The molecular structures of 1 and 2 in the crystal were confirmed by single‐crystal X‐ray diffraction. Unexpectedly both compounds exhibit seven‐membered chelate rings within the tppz backbone in contrast to the postulated five‐membered chelates for these species in literature.
Die Predigt aus linguistischer Sicht
Authors: Dix Carolin 
Published: May 2021

ZusammenfassungObwohl die Auseinandersetzung mit Sprache und Religion innerhalb der Linguistik eine lange Forschungstradition hat, bestehen nach wie vor Lücken, wenn es um die Analyse spezifischer sprachlich-kommunikativer Erscheinungen geht. Dies gilt gerade auch für das Ereignis der Predigt. Das Kapitel gibt einen Überblick über linguistische und interaktionsanalytische Forschung zurchristlichen Predigt und fokussiert speziell die Arbeiten aus dem Gebiet der Theolinguistik und der Religionslinguistik.
Towards colour flow evolution at two loops
Authors: Plätzer Simon , Ruffa Ines 
Published: June 2021

Abstract
We calculate the two-loop and one-loop/one-emission contributions required for soft gluon evolution at the next-to-leading order. The colour structures are expressed in the colour flow basis, and the kinematic dependence and loop integrals are expressed in terms of multiple cuts and phase-space-like integrals. This directly allows to use them in the resummation of non-global observables and improved parton shower algorithms beyond the leading order and beyond the leading colour limit. Within the colour flow basis it becomes apparent that correlations beyond a dipole picture emerge even in colour-diagonal elements of the virtual corrections.
Collective modes of polarizable holographic media in magnetic fields
Authors: Baggioli Matteo , Gran Ulf , Tornsö Marcus 
Published: June 2021

Abstract
We consider a neutral holographic plasma with dynamical electromagnetic interactions in a finite external magnetic field. The Coulomb interactions are introduced via mixed boundary conditions for the Maxwell gauge field. The collective modes at finite wave-vector are analyzed in detail and compared to the magneto-hydrodynamics results valid only at small magnetic fields. Surprisingly, at large magnetic field, we observe the appearance of two plasmon-like modes whose corresponding effective plasma frequency grows with the magnetic field and is not supported by any background charge density. Finally, we identify a mode collision which allows us to study the radius of convergence of the linearized hydrodynamics expansion as a function of the external magnetic field. We find that the radius of convergence in momentum space, related to the diffusive transverse electromagnetic mode, increases quadratically with the strength of the magnetic field.
Evidenzbasierte Alkoholprävention – Was empfiehlt die Wirksamkeitsforschung?
Authors: Bühler Anneke , Thrul Johannes , Gomes de Matos Elena 
Published: May 2021

Zusammenfassung
Hintergrund
Der riskante Alkoholkonsum einer substanziellen Gruppe von Jugendlichen und jungen Erwachsenen weist auf einen alkoholpräventiven Handlungsbedarf hin. Die BZgA-Expertise zur Suchtprävention 2020 liefert das wissenschaftliche Wissen zur Wirksamkeit von suchtpräventivem Handeln mit jungen Menschen.

Fragestellung
Welche Ansätze haben in den jeweiligen Handlungsfeldern der Suchtprävention alkoholpräventive Effekte?

Methode
Eine systematische Literatursuche im Juni 2017 in 7 internationalen Datenbanken resultierte in 28.949 Treffern. Einschlusskriterien waren: Studientyp Review oder Metaanalyse, Erscheinungsdatum 2012–2017, Zielgruppe universell oder selektiv und Alter bis 25 Jahre, Zielverhalten Alkoholkonsum. Ausschlusskriterien waren: Zielgruppe Menschen mit diagnostizierten Störungen, Zielverhalten Risikofaktoren. 34 alkoholbezogene Arbeiten wurden von den 3 Autoren systematisch ausgewertet und mittels AMSTAR (A MeaSurement Tool to Assess systematic Reviews) methodisch bewertet. Im Konsensverfahren wurden Schlussfolgerungen und Empfehlungen formuliert.

Ergebnisse
Basierend auf 53 Schlussfolgerungen zur Wirksamkeit von Alkoholprävention lassen sich je nach Handlungsfeld (Familie, Schule, Hochschule, Medien, Gesundheitssystem, Kommune) und Zielgruppe u. a. empfehlen: Familienprogramme und Elterntrainings, verhaltensbezogene Programme, die bestimmte personale und soziale Kompetenzen fördern, Kurzinterventionen mit Feedback, Mentorenprogramme. Neuere Arbeiten zu verhältnispräventiven alkoholpolitischen Maßnahmen auf kommunaler oder nationaler Ebene konnten nicht identifiziert werden.

Diskussion
Verhaltensbezogene Alkoholprävention ist wirksam. Je nach Handlungsfeld und Zielgruppe empfiehlt sich ein sehr differenziertes Vorgehen. Benötigt wird ein Konsens, mit welcher Art von Evidenz die kausale Wirksamkeit von Verhältnisprävention nachgewiesen werden kann.
Molecular dynamics simulation of the effect of solute atoms on the compression of magnesium alloy
Authors: Yang Qianhua , Xue Chun , Chu Zhibing , Li Yugui , Ma Lifeng 
Published: June 2021

AbstractMagnesium alloys have a wide range of application values. To design and develop magnesium alloys with excellent mechanical properties, it is necessary to study the deformation process. In this paper, the uniaxial compression (UC) process of AZ31 magnesium alloy with different solute atom content is simulated by the molecular dynamics method. The effect of the solute atom on the uniaxial compression of magnesium alloy is investigated. It is found that solute atoms can inhibit the grain refinement of magnesium, can effectively improve the plastic strength of the alloy, can change the lattice distortion during uniaxial compression of magnesium alloy, can inhibit the generation of BCC structure, and can slow down the increase of FCC structure and dislocation density. The direction of the FCC structure diffusion is 90° to the grain boundary direction. Shockley partial dislocations are generated around the FCC structure. The direction in which the FCC structure spreads is consistent with the direction in which Shockley partial dislocations move.
What to expect? Injury patterns of Electric-Scooter accidents over a period of one year - A prospective monocentric study at a Level 1 Trauma Center
Authors: Harbrecht Andreas , Hackl Michael , Leschinger Tim , Uschok Stephan , Wegmann Kilian , Eysel Peer , Müller Lars P. 
Published: June 2021

Abstract
Purpose
E-scooters are a new type of urban transportation utilized in Germany since June 2019, primarily in larger cities in the context of sharing offers. Such electrically operated standing scooters can be driven at a maximum speed of 20 km/h. A helmet is not mandatory. The aim of this prospective study is to document the injury patterns over the period of 1 year and compare our findings with already available data.

Methods
Over a period of 1 year (July 2019–July 2020), data on E-scooter-related accidents treated at a level 1 trauma center of a major German city were prospectively documented. Injury patterns were analyzed, and epidemiological data evaluated.

Results
Fifty-nine (35 female, 24 male) accidents were included in the observation period. Mean age of accident victims was 30.03 years (± 9.32). Alcohol influence at the time of accident was detected in 9 cases (15.25%). Many of the accident victims suffered multiple injuries. Most of the injuries were upper (50.84%) and lower extremity (47.45%) as well as craniofacial injuries (62.71%). A helmet was not worn in any of the cases.

Conclusion
In the year following their introduction, E-scooter-related accidents have led to an additional burden on the emergency capacities of the involved University Hospital, especially in the summer months of 2019. Protective equipment is de facto not worn. Injuries to the extremities, head, and face were most common. None of the accident victims died. This coincides with results from other major cities in national and international comparison. A more intensive education about injury consequences of unprotected E-scooter use and the discussion of a possible obligation to wear a helmet and further protection equipment for the extremities should take place.
Influence of process parameters on the residual stress state and properties in disc springs made by incremental sheet forming (ISF)
Authors: Afzal Muhammad Junaid , Hajavifard Ramin , Buhl Johannes , Walther Frank , Bambach Markus 
Published: May 2021

AbstractDisc springs are machine elements that are used when high forces need to be supplied and in limited installation space. They need to fulfil high demands on the stability of the spring characteristics, reliability and lifetime. In corrosive environments, metastable austenitic stainless steels (MASS) disc springs are often used. Tensile stresses that occur during service limit the lifetime of disc springs. Usually, their durability is enhanced by generating favorable compressive residual stresses using shot peening operations. Such operations lead to extra efforts and additional production costs. In this study, the adaptive and targeted generation of residual stresses via incremental sheet forming (ISF) is investigated as alternative to shot peening focusing on EN 1.4310 and EN 1.4401 stainless steel. Previous work has shown that ISF is capable of controlling the radial and tangential stresses in the springs. However, no analysis of the influence of the residual stress state in the rolled sheet strips and the ISF process parameters was performed. The goal of the current work is to analyze the evolution of residual stress during rolling and subsequent incremental forming of disc springs. In order to examine the role of dissipation and temperature increases in the rolling process, sheet blanks rolled at room and elevated temperature are analyzed. The characteristics of the compressive residual stresses induced by ISF are studied for different process parameters. X‑ray diffraction is used to investigate the buildup of these stresses. Using ISF, the generation of compressive residual stresses can be integrated into the forming process of disc springs, and further post-treatment may be skipped. The results show that the residual stress state in the rolled material is crucial, which requires tight control of the rolling temperature. Another result is that ISF is able to yield high compressive residual stresses and improved spring characteristics when small tool diameters and step-down values are used.
Quantifying VR cybersickness using EEG
Authors: Krokos Eric , Varshney Amitabh 
Published: June 2021

AbstractCurrent techniques for characterizing cybersickness (visually induced motion sickness) in virtual environments rely on qualitative questionnaires. For interactive graphics to create visual experiences that enhance the illusion of presence while mitigating cybersickness, interactive measures are needed to characterize cybersickness. In this paper, we acquire EEG signals from participants as they experience vection-induced cybersickness and compare those signals to a baseline. Our study shows that there is a correlation between the participant-reported cybersickness (as measured by movements of a joystick) and brain EEG signals. Through independent component analysis, we separate those signals which are a result of cybersickness from other sources (such as eye blinks). Our user study finds that there is a highly correlative and statistically significant Delta- (1.0–4.0 Hz), Theta- (4.0–7.0 Hz), and Alpha-wave (7.0–13.0 Hz) increase associated with cybersickness in immersive virtual environments across participants. Establishing a strong correlation between cybersickness and EEG-measured brain activity provides us with the first step toward interactively characterizing and mitigating cybersickness in virtual environments.
Comparison of self-reported and public registered absenteeism among people on long-term sick leave due to musculoskeletal disorders: criterion validity of the iMTA Productivity Cost Questionnaire
Authors: Munk Killingmo Rikke , Tveter Anne Therese , Småstuen Milada C. , Storheim Kjersti , Grotle Margreth 
Published: June 2021

Abstract
Objective
To evaluate criterion validity of the iMTA Productivity Cost Questionnaire (iPCQ) by comparing iPCQ-reported occurrence and duration of long-term absenteeism (> 4 weeks) with public registry data collected from the Norwegian Labour and Welfare Administration (NAV) among people on sick leave due to musculoskeletal disorders.

Method
Baseline data from a cohort study was used, in which people on sick leave for at least 4 weeks due to musculoskeletal disorders were recruited electronically through the NAV website. To compare the occurrence of long-term absenteeism overall agreement between the two methods was measured by percentages. To compare the duration (number of days with absenteeism) and adjusted duration (number of days with complete absenteeism) of long-term absenteeism we conducted intraclass correlation coefficient (ICC) two-way random average agreement, descriptive statistic and Wilcoxon signed-rank test.

Results
In total, 144 participants with a median age (range) of 49 (24–67) were included. The overall agreement on the occurrence of long-term absenteeism was 100%. The ICC value was 0.97 and 0.86 for duration and adjusted duration of long-term absenteeism, respectively. The median difference(iPCQ-registry) between the two methods was 0 and 17 days for long-term absenteeism duration and adjusted duration, respectively. A significant difference between the two methods was observed (Wilcoxon signed-rank test, p < 0.001) with regards to adjusted duration of long-term absenteeism.

Conclusion
The iPCQ showed good agreement with public registry data regarding the occurrence and duration of long-term absenteeism among people with musculoskeletal disorders on long-term sick-leave in Norway. However, the iPCQ does not cover part-time sick-leave and thereby potentially overestimate the total amount of long-term absenteeism.

Trial registration
ClinicalTrials.gov Identifier no. NCT04196634.
Multiplicative Chow–Künneth decompositions and varieties of cohomological K3 type
Authors: Fu Lie , Laterveer Robert , Vial Charles 
Published: June 2021

AbstractGiven a smooth projective variety, a Chow–Künneth decomposition is called multiplicative if it is compatible with the intersection product. Following works of Beauville and Voisin, Shen and Vial conjectured that hyper-Kähler varieties admit a multiplicative Chow–Künneth decomposition. In this paper, based on the mysterious link between Fano varieties with cohomology of K3 type and hyper-Kähler varieties, we ask whether Fano varieties with cohomology of K3 type also admit a multiplicative Chow–Künneth decomposition, and provide evidence by establishing their existence for cubic fourfolds and Küchle fourfolds of typec7. The main input in the cubic hypersurface case is the Franchetta property for the square of the Fano variety of lines; this was established in our earlier work in the fourfold case and is generalized here to arbitrary dimension. On the other end of the spectrum, we also give evidence that varieties with ample canonical class and with cohomology of K3 type might admit a multiplicative Chow–Künneth decomposition, by establishing this for two families of Todorov surfaces.
Cytogenetic events in the endosperm of amphiploid Avena magna × A. longiglumis
Authors: Tomaszewska Paulina , Kosina Romuald 
Published: May 2021

AbstractThis study analysed cytogenetic events occurring in the syncytial endosperm of theAvena magnaH. C. Murphy & Terrell × Avena longiglumisDurieu amphiploid, which is a product of two wild species having different genomes. Selection through the elimination of chromosomes and their fragments, including those translocated, decreased the level of ploidy in the endosperm below the expected 3n, leading to the modal number close to 2n. During intergenomic translocations, fragments of the heterochromatin-rich C-genome were transferred to the D and Al genomes. Terminal and non-reciprocal exchanges dominated, whereas other types of translocations, including microexchanges, were less common. Using two probes and by counterstaining with DAPI, theA. longiglumisand the rare exchanges between the D and Al genomes were detected by GISH. The large discontinuity in the probe labelling in the C chromosomes demonstrated inequality in the distribution of repetitive sequences along the chromosome and probable intragenomic rearrangements. In the nucleus, the spatial arrangement of genomes was non-random and showed a sectorial-concentric pattern, which can vary during the cell cycle, especially in the less stable tissue like the hybrid endosperm.
Double Dutch Finally Fixed? A Large-Scale Investigation into the Readability of Mandatory Financial Product Information
Authors: Scheld D. , Stolper O. , Walter A. 
Published: June 2021

AbstractWith the introduction of short-form disclosure documents, financial regulation in the EU emphasizes the use of plain language to facilitate comprehensibility. We evaluate whether these documents and the accompanying plain language guidelines improve the readability of mandatory product information addressed to mutual fund investors. Applying advanced text mining algorithms, we benchmark the readability of product information by means of objective and readily replicable methods. While mutual fund information on average does not come in plain language, we find that readability improved significantly following the introduction of Key Investor Information Documents (KIIDs). Improvements are driven by simpler syntax and writing style. By contrast, the authors find that the use of jargon remains pervasive and report noncompliance with mandatory design requirements. We discuss our results and propose potential disclosure improvements.
Explanation Within Arm’s Reach: A Predictive Processing Framework for Single Arm Use in Octopuses
Authors: Carls-Diamante Sidney 
Published: June 2021

AbstractOctopuses are highly intelligent animals with vertebrate-like cognitive and behavioural repertoires. Despite these similarities, vertebrate-based models of cognition and behaviour cannot always be successfully applied to octopuses, due to the structural and functional characteristics that have evolved in their nervous system in response to the unique challenges posed by octopus morphology. For instance, the octopus brain does not support a somatotopic or point-for-point spatial map of the body—an important feature of vertebrate nervous systems. Thus, while octopuses are capable of motor tasks whose vertebrate counterparts require detailed interoceptive monitoring, these movements may not be explainable using motor control frameworks premised on internal spatial representation. One such motor task is the extension of a single arm. The ability of octopuses to select and use a single arm without the guidance of a somatotopic map has been regarded as a motor control puzzle. In an attempt at a solution, this paper develops a predictive processing account of single-arm extension in octopuses.