bluuebunny/crossref_metadata_2025_split huggingface dataset:
Ludwig van Beethoven—a psychiatric perspective
Authors: Erfurth Andreas 
Published: August 2021

SummaryBiographical accounts of famous artists usually try to relate the life story to the works (and vice versa). This gives the work a special “colour”, often the context for understanding for today’s recipients. This interrelation is complex and often judgmental, sometimes manipulative. Thus, medical (including psychiatric), characterological and psychodynamic assessments and interpretations must be made with great caution. Primary sources may be scanty and diagnostic concepts may have changed (Mozart died ofhitzigem Frieselfieber[prickly heat fever]; in Hölderlin’s lifetime, schizophrenia or bipolar disorder did not yet “exist”). The attempt at a diagnostic classification often says more about the author and his time than about the artist (for example, the assessment of Robert Schumann’s or Friedrich Hölderlin’s mental illness). Against this background, elements of Ludwig van Beethoven’s biography are presented from a psychiatric perspective. In summary, Beethoven can be diagnosed with an alcohol use disorder. A pronounced hyperthymic temperament is likely to have had a clearly positive influence on the course of the disorder. In particular, no influence of the alcohol use disorder on the musical quality of the work can be proven. A clear episodic course of affective symptoms as in bipolar disorder is not demonstrable. The deafness caused a severe reduction in quality of life.
Distended abdomen due to a pseudocyst around a ventriculoperitoneal shunt
Authors: Meyer Sascha , Nemat Sogand , Linsler Stefan , Bay Johannes , Zemlin Michael , Poryo Martin 
Published: August 2021

SummaryDescribed herein is a case of distended abdomen in a 4-year-old boy with a ventriculoperitoneal (VP) shunt due to bilateral intraventricular hemorrhage following premature birth. Physical examination and laboratory tests revealed tenderness in the lower quadrants, with mild leukocytosis and normal C‑reactive protein levels. X‑ray demonstrated an intact VP shunt catheter but cranial displacement of the large intestine. Ultrasonography confirmed a large pseudocyst around the VP shunt, with extension from the symphysis to the sternum. The distal part of the VP shunt was surgically revised and 2.5 l of cerebrospinal fluid were evacuated. The boy made a full clinical recovery. Conventional X‑rays, routinely used to confirm or exclude VP shunt continuity, may provide important clues regarding to the etiology of VP shunt dysfunction.
Effect of lithium disilicate ceramic thickness, shade and translucency on transmitted irradiance and knoop microhardness of a light cured luting resin cement
Authors: Borges Lincoln Pires Silva , Borges Gilberto Antônio , Correr Américo Bortolazzo , Platt Jeffrey A. , Kina Sidney , Correr-Sobrinho Lourenço , Costa Ana Rosa 
Published: August 2021

AbstractThis in vitro study evaluates the influence of pressed lithium disilicate thickness, shade and translucency on the transmitted irradiance and the Knoop microhardness (KHN) of a light-cured resin cement at two depths. One hundred and thirty-five ceramic discs of IPS e.max Press (Ivoclar Vivadent) were fabricated and divided into twenty-seven groups (n = 5) according to the association between translucency: HT (hight translucency), LT (low translucency), and MO (medium opacity); shade: BL2, A1 and A3.5; and thickness: 0.5 mm, 1.5 mm, and 2.0 mm. One side of each ceramic disc was finished, polished and glazed. The irradiance (mW/cm²) of a multiwave LED light curing unit (Valo, Ultradent) was evaluated with a potentiometer (Ophir 10ª-V2-SH, Ophir Optronics) without (control group) or with interposition of ceramic samples. The microhardness of Variolink Esthetic LC resin cement (Ivoclar Vivadent) was evaluated after 24 h at two depths (100 μm and 700 μm). Data were submitted to ANOVA followed by Tukey’s test (α = 0.05). Irradiance and KHN were significantly influenced by ceramic thickness (p < 0.0001), shade (p < 0.001), translucency (p < 0.0001) and depth (p < 0.0001). Conclusions: the interposition of increasing ceramic thicknesses significantly reduced the irradiance and microhardness of resin cement. Increased depth in the resin cement showed significantly reduced microhardness for all studied groups. Increased ceramic opacity reduced the KHN of the resin cement at both depths for all ceramic thicknesses and shades.
Constructing tree decompositions of graphs with bounded gonality
Authors: Bodlaender Hans L. , van Dobben de Bruyn Josse , Gijswijt Dion , Smit Harry 
Published: August 2021

AbstractIn this paper, we give a constructive proof of the fact that the treewidth of a graph is at most its divisorial gonality. The proof gives a polynomial time algorithm to construct a tree decomposition of width at most k, when an effective divisor of degree k that reaches all vertices is given. We also give a similar result for two related notions: stable divisorial gonality and stable gonality.
Testing conditional independence in supervised learning algorithms
Authors: Watson David S. , Wright Marvin N. 
Published: August 2021

AbstractWe propose the conditional predictive impact (CPI), a consistent and unbiased estimator of the association between one or several features and a given outcome, conditional on a reduced feature set. Building on the knockoff framework of Candès et al. (J R Stat Soc Ser B 80:551–577, 2018), we develop a novel testing procedure that works in conjunction with any valid knockoff sampler, supervised learning algorithm, and loss function. The CPI can be efficiently computed for high-dimensional data without any sparsity constraints. We demonstrate convergence criteria for the CPI and develop statistical inference procedures for evaluating its magnitude, significance, and precision. These tests aid in feature and model selection, extending traditional frequentist and Bayesian techniques to general supervised learning tasks. The CPI may also be applied in causal discovery to identify underlying multivariate graph structures. We test our method using various algorithms, including linear regression, neural networks, random forests, and support vector machines. Empirical results show that the CPI compares favorably to alternative variable importance measures and other nonparametric tests of conditional independence on a diverse array of real and synthetic datasets. Simulations confirm that our inference procedures successfully control Type I error with competitive power in a range of settings. Our method has been implemented in an package, , which can be downloaded fromhttps://github.com/dswatson/cpi.
Back to reality: transition techniques from short HMD-based virtual experiences to the physical world
Authors: Horst Robin , Naraghi-Taghi-Off Ramtin , Rau Linda , Dörner Ralf 
Published: August 2021

AbstractEvery Virtual Reality (VR) experience has to end at some point. While there already exist concepts to design transitions for users to enter a virtual world, their return from the physical world should be considered, as well, as it is a part of the overall VR experience. We call the latter outro-transitions. In contrast to offboarding of VR experiences, that takes place after taking off VR hardware (e.g., HMDs), outro-transitions are still part of the immersive experience. Such transitions occur more frequently when VR is experienced periodically and for only short times. One example where transition techniques are necessary is in an auditorium where the audience has individual VR headsets available, for example, in a presentation using PowerPoint slides together with brief VR experiences sprinkled between the slides. The audience must put on and take off HMDs frequently every time they switch from common presentation media to VR and back. In a such a one-to-many VR scenario, it is challenging for presenters to explore the process of multiple people coming back from the virtual to the physical world at once. Direct communication may be constrained while VR users are wearing an HMD. Presenters need a tool to indicate them to stop the VR session and switch back to the slide presentation. Virtual visual cues can help presenters or other external entities (e.g., automated/scripted events) to request VR users to end a VR session. Such transitions become part of the overall experience of the audience and thus must be considered. This paper explores visual cues as outro-transitions from a virtual world back to the physical world and their utility to enable presenters to request VR users to end a VR session. We propose and investigate eight transition techniques. We focus on their usage in short consecutive VR experiences and include both established and novel techniques. The transition techniques are evaluated within a user study to draw conclusions on the effects of outro-transitions on the overall experience and presence of participants. We also take into account how long an outro-transition may take and how comfortable our participants perceived the proposed techniques. The study points out that they preferred non-interactive outro-transitions over interactive ones, except for a transition that allowed VR users to communicate with presenters. Furthermore, we explore the presenter-VR user relation within a presentation scenario that uses short VR experiences. The study indicates involving presenters that can stop a VR session was not only negligible but preferred by our participants.
Narratives in entrepreneurial ecosystems: drivers of effectuation versus causation
Authors: Hubner Sylvia , Most Fabian , Wirtz Jochen , Auer Christine 
Published: August 2021

Abstract
This paper introduces narratives in entrepreneurial ecosystems as drivers of effectuation vs. causation. Drawing on 43 interviews with successful players in Silicon Valley, Munich, and Singapore, we found ecosystem-specific narratives indicate what is common, appropriate, and successful in each ecosystem, and these narratives encourage either effectuation or causation. Our findings indicate that the narratives in the ecosystem in Silicon Valley facilitate effectuation, in Munich causation, and in Singapore a cautious balance of both. Our research suggests that narratives can explain mechanisms how ecosystems influence entrepreneurship: the national culture, market characteristics, available resources, and networks in an ecosystem spark ecosystem-specific narratives, which in turn shape tendencies towards effectuation and causation. Thereby, we introduce a new ecosystem-focused perspective on predictors of effectuation and causation.
Not a Negation? A Logico-Philosophical Perspective on the Ugaritic Particles lā/ ’al
Authors: Barés Gómez Cristina , Fontaine Matthieu 
Published: August 2021

AbstractThe negative particleslā/ ’alin Ugaritic change from positive to negative in modal contexts, conditional, questions, disjunctions, etc. They have usually been studied from a Semitic and linguistic points of view. On the basis of their occurrence in Ugaritic texts, we pretend to explain their uncommon behaviour from a philosophical and logico-semantic perspective. Is it possible to translate this linguistic structure in our Modern languages? Starting from a general view of their use in Ugaritic language, we claim that this phenomenon can be more clearly understood in relation to modality. We interpret these negation as a negative evidential paradigm and we explain how they change in different contexts. Methodologically, we make use of formal tools of Dynamic Epistemic Logic in order to provide a more fine-grained understanding of these negations, and their dynamics.
A soft computing approach to tunnel face stability in a probabilistic framework
Authors: Soranzo Enrico , Guardiani Carlotta , Wu Wei 
Published: August 2021

AbstractTunnel face is important for shallow tunnels to avoid collapses. In this study, tunnel face stability is studied with soft computing techniques. A database is created based on the literature which is used to train some broadly adopted soft computing techniques, ranging from linear regression to the artificial neural network. The soil dry density, cohesion, friction angle, cover depth and the tunnel diameter are used as the input parameters. The soft computing techniques state whether the face support is stable and predict the face support pressure. It is found that the artificial neural network outperforms the other techniques. The face support pressure is predicted with the artificial neural network for statistically distributed samples, and the failure probability is obtained with Monte Carlo simulations. In this way, the stability of the tunnel face can be reliably assessed and the support pressure can be estimated fairly accurately.
How Trust Makes a Difference: The Impact of the First Wave of the COVID-19 Pandemic on Life Satisfaction in Germany
Authors: Bittmann Felix 
Published: August 2021

AbstractThe extraordinary COVID-19 pandemic is one of the most severe disruptions of human life since the end of World War II, even in rich and industrialized countries like Germany. The introduction of a rather comprehensive “lockdown” and the restriction of multiple basic civil rights have affected the population in many areas of life, like employment, economic prosperity, health and trust in public institutions. The question arises how life satisfaction is influenced by these measures in detail and whether there are interactions between institutional trust, life satisfaction and time of crisis. Fixed-effect regression analyses using German National Educational Panel Study (NEPS) data demonstrate that life satisfaction has fallen sharply after the onset of the crisis and that interaction effects with institutional trust are present. Individuals with low levels of pre-crisis trust in institutions like the government, courts or the media report a stronger decrease of satisfaction than individuals with higher levels of trust. We believe that these results are relevant to explain the role of institutions in times of crisis and might serve as foundations for interventions to strengthen trust and increase overall satisfaction.
Improving negotiation success in B2B sales organizations: is structured negotiation management a success factor?
Authors: Mayer Markus , Voeth Markus 
Published: August 2021

AbstractResearchers and practitioners alike recognize the necessity to manage salespeople before, during, and after negotiations. Literature identifies four approaches that companies use to manage salespeople in and around negotiations. However, it has never been researched which of these approaches help companies implement negotiation management successfully. The present study examines which management approach or combination of approaches lead to a consistently high level of negotiation success. The authors use a fuzzy-set qualitative comparative analysis to identify the conditions explaining negotiation success. The findings indicate that any effort to actively manage negotiations as a corporate capability supports sales in achieving a higher level of negotiation success. While the study was not able to identify any necessary conditions, the sufficient solution formula to reach a high level of negotiation success comprises two paths in its most parsimonious form. Following this solution formula, companies should either enable salespeople to solve complex situations autonomously and provide guidance along the negotiation process or define clear objectives, manage salespeople against deviations from the objectives, and monitor them closely throughout the negotiation process. This suggests, that successful negotiation management either empowers salespeople to act autonomously or focuses on a control management style. The latter should comprise both aspects of outcome and behavior control.
„Und täglich grüßt das Murmeltier“ oder Selbsterfahrung in der Zeitschleife. Zur Musterbildung in Interaktionssystemen
Authors: Bachmann Thomas 
Published: August 2021

ZusammenfassungAnhand der Films „Und täglich grüßt das Murmeltier“ wird das Konzept der doppelten Kontingenz erklärt und die Entstehung von tragfähigen Beziehungen in Therapie, Coaching und Beratung untersucht. Dabei wird gezeigt, dass Resonanz in Beziehungen, jenseits von Tools und Methoden, eine wesentliche Quelle für Selbsterfahrung und Lernen darstellt.
Around averaged mappings
Authors: Górnicki Jarosław , Bisht Ravindra K. 
Published: August 2021

AbstractThis paper is intended for a general mathematical audience. The examples show how the study of existence of fixed points of averaged mappings $$T_{\lambda }= (1-\lambda )I+ \lambda T$$

T
λ

=

(
1
-
λ
)

I
+
λ
T

, where $$0<\lambda <1$$

0
<
λ
<
1

and I is the identity operator, can help in the study of existence of fixed points of mappings T.
Physical and sexual abuse against young athletes in sport in light of article 8 of the European Convention on Human Rights (ECHR)
Authors: Shinohara Tsubasa 
Published: August 2021

AbstractNumerous young athletes have suffered from physical and sexual abuse at the hands of their coaches. Despite this, the European Court of Human Rights (ECtHR) has never dealt with a violation of child rights under the European Convention on Human Rights (ECHR) in the case of physical and sexual abuse in sport. In this situation, a question that may arise is how young athletes can argue a violation of their substantive rights under the Convention before the ECtHR in the case of such abuses? In this regard, the right to physical and mental integrity under Articles 10 (2) and 27 (2) of the Swiss Federal Constitution (SFC) as well as the prohibition of an excessive limitation of personal freedom under Article 27 (2) of the Swiss Civil Code (SCC) may play an essential role to build a bridge between the Convention rights and the fundamental human rights under national law in light of the SFT’s precedents within the meaning ofsubstantive public policyunder Article 190 (2) (e) of the Swiss Private International Law Act (PILA). Although the International Federations (IFs) have not recognised a legal standing of young athletes suffering from physical and sexual abuse, state parties to the ECHR must implement positive obligations under Article 8 (1) of the ECHR to take necessary measures to protect young athletes against such abuses by non-state actors and may require sports governing bodies within the jurisdiction to comply with Article 8 (1)’s obligations. Accordingly, this article might serve to clarify a duty of sports governing bodies to protect young athletes against such abuses through a lens of the ECHR.
Human Belief State-Based Exploration and Exploitation in an Information-Selective Symmetric Reversal Bandit Task
Authors: Horvath Lilla , Colcombe Stanley , Milham Michael , Ray Shruti , Schwartenbeck Philipp , Ostwald Dirk 
Published: August 2021

AbstractHumans often face sequential decision-making problems, in which information about the environmental reward structure is detached from rewards for a subset of actions. In the current exploratory study, we introduce an information-selective symmetric reversal bandit task to model such situations and obtained choice data on this task from 24 participants. To arbitrate between different decision-making strategies that participants may use on this task, we developed a set of probabilistic agent-based behavioral models, including exploitative and explorative Bayesian agents, as well as heuristic control agents. Upon validating the model and parameter recovery properties of our model set and summarizing the participants’ choice data in a descriptive way, we used a maximum likelihood approach to evaluate the participants’ choice data from the perspective of our model set. In brief, we provide quantitative evidence that participants employ a belief state-based hybrid explorative-exploitative strategy on the information-selective symmetric reversal bandit task, lending further support to the finding that humans are guided by their subjective uncertainty when solving exploration-exploitation dilemmas.
An Innovative Health Literacy Approach Designed to Improve Patient Understanding of Medication Labeling
Authors: Jacobson Kara L. , Faughnan Juliette , Myers Laurie , Dubost Amy , Courtade Lisa , von Lutcken Scott , McCrary Sisk Christine , Gregory Suzanne , Cunningham Anita , Gunther Cathryn , Wolf Michael S. 
Published: August 2021

AbstractObjectiveLimited health literacy negatively impacts understanding of medication-related information. We describe an innovative methodology designed to optimize user understanding of patient medication labeling through the systematic application of evidence-based health literacy principles, using the Patient Package Insert (PPI) for bezlotoxumab (ZINPLAVA™, Merck & Co., Inc., Kenilworth, NJ, USA) as an example.MethodsWe used a mixed-model, iterative approach consisting of three phases: (1) content development; (2) focus group testing; and (3) comprehension testing. Content development was based on evidence-based health literacy principles and conducted through a collaborative partnership between industry and academia professionals. The PPI was then tested in four focus groups, two in Atlanta and two in Chicago, with an emphasis on collecting feedback from respondents with limited health literacy, evaluated using the Newest Vital Sign (NVS) health literacy assessment tool. Subsequent comprehension testing included patients withC. diff, caregivers, and general population members, with a pre-defined target sample of 25% with limited health literacy identified through two health literacy assessment tools: the Single Item Literacy Screener and the NVS.ResultsContent development of the bezlotoxumab PPI occurred in May 2015. In June 2015, focus group respondents (n = 34) provided generally favorable feedback, with insights revolving around organization and usability; language and comprehension; and volume of information. Comprehension testing of the revised PPI resulted in average comprehension scores of 96% for the overall population (n = 59), 90% for individuals presenting with limited health literacy (n = 14), and 97% for those with adequate health literacy (n = 45). This PPI development approach was similarly effective for subsequent products across diverse therapeutic areas, with comprehension scores ≥ 86% for all participants (n = 1197).ConclusionThis methodology represents a significant advancement for the development of understandable patient medication labeling, especially for people with limited health literacy.
Do higher temperatures influence how yields respond to increasing planting density?
Authors: Wang Ruixue , Rejesus Roderick M. , Tack Jesse B. , Aglasan Serkan 
Published: August 2021

Abstract
This study explores how higher temperatures influence corn yield response to planting density. Using 1990–2010 field trial data from Wisconsin and econometric models with a variety of specifications, we find that higher temperatures reduce the yield benefits of increasing planting density. However, these adverse high-temperature effects are smaller for genetically modified corn varieties, especially those with rootworm-resistant traits. Consistent with previous studies, these results support the notion that varietal improvements through genetic modification may have paved the way for higher planting densities in US corn production. Moreover, our results imply that expected in-season temperatures are important considerations when making planting density decisions.