bluuebunny/crossref_metadata_2025_split huggingface dataset:
Evolution of the Lower Permian Rochlitz volcanic system, Eastern Germany: reconstruction of an intra-continental supereruption
Authors: Hübner Marcel , Breitkreuz Christoph , Repstock Alexander , Schulz Bernhard , Pietranik Anna , Lapp Manuel , Heuer Franziska 
Published: July 2021

AbstractExtensional tectonics in the Late Paleozoic Central Europe was accompanied by rift magmatism that triggered voluminous intracontinental caldera-forming eruptions. Among these, the Lower Permian Rochlitz Volcanic System (RVS) in the North Saxon Volcanic Complex (Eastern Germany, Saxony) represents a supereruption (VEI 8, estimated volume of 1056 km3) of monotonous rhyolites followed by monotonous intermediates. Mapping, petrography, whole-rock geochemistry along with mineral chemistry and oxygen isotopes in zircon display its complex eruption history and magma evolution. Crystal-rich (> 35 vol%), rhyolitic Rochlitz-α Ignimbrite with strong to moderate welding compaction erupted in the climactic stage after reheating of the magma by basaltic injections. Due to magma mixing, low-volume trachydacitic-to-rhyolitic Rochlitz-β Ignimbrite succeeded, characterized by high Ti and Zr-values and zircon with mantle δ18O. Randomly oriented, sub-horizontally bedded fiamme, and NW–SE striking subvolcanic bodies and faults suggest pyroclastic fountaining along NW–SE-oriented fissures as the dominant eruption style. Intrusion of the Leisnig and the Grimma Laccoliths caused resurgence of the Rochlitz caldera forming several peripheral subbasins. In the post-climactic stage, these were filled with lava complexes, ignimbrites and alluvial to lacustrine sediments. Significant Nb and Ta anomalies and high Nb/Ta ratios (11.8–17.9) display a high degree of crustal contamination for the melts of the RVS. Based on homogenous petrographic and geochemical composition along with a narrow range of δ18O in zircon Rochlitz-α Ignimbrite were classified as monotonous rhyolites. For the Rochlitz-β Ignimbrites, underplating and mixing with basic melts are indicated by Mg-rich annite–siderophyllite and δ18O < 6.0 in zircon. The wide spectrum of δ18O on zircon suggests an incomplete mixing process during the formation of monotonous intermediates in the RVS.
Preoperative risk factors associated with new focal neurological deficit and other major adverse events in first-time intracranial meningioma neurosurgery
Authors: Jenkins Freya Sophie , Vasella Flavio , Padevit Luis , Mutschler Valentino , Akeret Kevin , Velz Julia , Regli Luca , Sarnthein Johannes , Neidert Marian Christoph 
Published: July 2021

Abstract
Background
Neurosurgical resection is the mainstay of meningioma treatment. Adverse event (AE) rates of meningioma resections are significant, but preoperative risk factors for major AEs in patients undergoing first-time meningioma surgery are largely unknown. The aim of this study was to explore major AEs and identify preoperative risk factors in patients undergoing first-time meningioma surgery.

Methods
Data on all meningioma resections performed at the University Hospital Zurich from 1 January 2013 to 31 December 2018 were collected in a prospective registry. All AEs that occurred within 3 months of surgery were documented in detail and classified as “minor” or “major.” Statistical analysis included initial individual bivariate analyses of all preoperative factors and the occurrence of major AEs. Statistically significant variables were then included in a logistic regression model to identify predictors.

Results
Three hundred forty-five patients were included in the study. Mean age was 58.1 years, and 77.1% of patients were female. The overall major AE rate was 20.6%; the most common of which was a new focal neurological deficit (12.8% of patients). Six preoperative factors showed a significant association with the occurrence of major AEs in bivariate analysis. All variables included in the logistic regression model showed increased odds of occurrence of major AE, but only tumor complexity as measured by the Milan Complexity Scale was a statistically significant predictor, with a score of 4 or more having twice the odds of major AEs (OR: 2.00, 95% CI: 1.15–3.48).

Conclusion
High tumor complexity is an independent predictor of the occurrence of major AEs following meningioma resection. Preoperative assessment of tumor complexity using the Milan Complexity Scale is warranted and can aid communication with patients about AE rates and surgical decision-making.
Effects of head trauma and sport participation in young-onset Parkinson’s disease
Authors: Schirinzi Tommaso , Grillo Piergiorgio , Di Lazzaro Giulia , Zenuni Henri , Salimei Chiara , Dams-O’Connor Kristen , Sancesario Giulia Maria , Mercuri Nicola Biagio , Pisani Antonio 
Published: July 2021

AbstractHead trauma (HT) is emerging as an event anticipating onset of neurodegenerative disorders. However, the potential contribution of HT in young-onset cases (YOPD, age at onset < 50) of Parkinson’s disease (PD) has not been examined yet. Here, we systematically assessed HT history in PD patients to estimate the risk associated, especially in terms of age of onset, and define the correlations with the clinical-biochemical profile. The Brain Injury Screening Questionnaire (BISQ) was administered to 94 PD patients (31 with YOPD, known monogenic forms excluded) and 70 controls. HT history was correlated with motor and non-motor scores in all patients, and to CSF biomarkers of neurodegeneration (α-synuclein, amyloid-β42, total and phosporiled-181 tau, lactate, CSF/serum albumin) into a subgroup. HT increased the risk for both PD and YOPD. In PD patients, but not in those with YOPD, the number of HTs directly correlated with CSF total-tau levels. No other correlations resulted between HT and clinical parameters. Sport-related HT was a specific risk factor for YOPD; conversely, the prolonged sporting life represented a protective factor. HTs can favor PD onset, even as YOPD. Sport-related HT resulted a risk factor for YOPD, although the longer sporting practice delayed PD onset, protecting from YOPD. Tauopathy may underlie the overall association between HT and PD. Additional mechanisms could be instead implicated in HT contribution to YOPD onset.
Einfluss von prozessinduzierten Eigenspannungen auf die Zahnfußtragfähigkeit schergeschnittener Zahnräder
Authors: Müller Daniel , Stahl Jens , Nürnberger Anian , Golle Roland , Tobie Thomas , Volk Wolfram , Stahl Karsten 
Published: July 2021

ZusammenfassungDiese Arbeit verfolgt das Ziel die Zahnfußtragfähigkeit schergeschnittener Verzahnungen zu untersuchen und diese durch Nutzung der beim Fertigungsprozess induzierten Eigenspannungen zu verbessern. Dazu wird eine ausgewählte Zahnradgeometrie durch das Near-Net-Shape-Blanking Verfahren „Feinschneiden“ hergestellt. Dabei wird der Einfluss des Prozessparameters „Matrizenschneidkantenradius“ auf Schnittflächenkenngrößen und Eigenspannungen untersucht. Die Zahnfußtragfähigkeit der feingeschnittenen Zahnradvarianten wird ermittelt und in bestehende Zahnradnormen eingeordnet. Zusätzlich werden Stichversuche mit einer Zahnradvariante, hergestellt durch Feinschneiden mit geringer Gegenhalterkraft und einer feingeschnittenen und anschließend spannungsarmgeglühten Variante durchgeführt. Die einzelnen Prüfvarianten werden hinsichtlich der ermittelten Zahnfußtragfähigkeit und des vorliegenden Eigenspannungszustands verglichen.Für die Varianten mit Matrizenschneidkantenradius von $$r_{\text{M}}=50,100,150$$

r
M

=
50
,
100
,
150

und $$200\,{\mu}\text{m}$$

200

μ
m

ergeben sich vergleichbare Schnittflächenkenngrößen und Konturen. Für größere Matrizenschneidkantenradien werden höhere Druckeigenspannungen gemessen und höhere Zahnfußtragfähigkeiten ermittelt.Die ermittelten Zahnfußdauerfestigkeiten der feingeschnittenen Zahnräder liegen insgesamt auf einem ähnlichen Niveau, das deutlich höher liegt als für diesen Grundwerkstoff in der ISO 6336‑5 angegeben wird. Mit $$\sigma_{F\text{ lim}}=317{\ldots}327\,{\text{N/mm}^{2}}$$

σ

F
lim

=
317

…

327

N/mm

2

liegen die feingeschnittenen Zahnräder auf dem unteren Niveau von ungestrahlten einsatzgehärteten Zahnrädern.Für die weiteren Prüfvarianten zeigt sich im Vergleich zu den feingeschnittenen Zahnrädern eine deutliche Abnahme der ertragbaren Lastwechsel bei kleineren Lasten. Die verminderte Zahnfußtragfähigkeit lässt sich auf geringere vorliegende Druckeigenspannungen zurückführen. Somit lassen sich die Eigenspannungen über die Aktivelementkantenpräparation und die Gegenhalterkraft so einstellen, dass eine möglichst hohe Tragfähigkeit erzielt wird.
A comparative multicentre study evaluating gluteal turnover flap for wound closure after abdominoperineal resection for rectal cancer
Authors: Sharabiany S. , van Dam J. J. W. , Sparenberg S. , Blok R. D. , Singh B. , Chaudhri S. , Runau F. , van Geloven A. A. W. , van de Ven A. W. H. , Lapid O. , Hompes R. , Tanis P. J. , Musters G. D. 
Published: July 2021

Abstract
Background
The aim of this study was to compare perineal wound healing between gluteal turnover flap and primary closure in patients undergoing abdominoperineal resection (APR) for rectal cancer.

Methods
Patients who underwent APR for primary or recurrent rectal cancer with gluteal turnover flap in two university hospitals (2016–2021) were compared to a multicentre cohort of primary closure (2000–2017). The primary endpoint was uncomplicated perineal wound healing within 30 days. Secondary endpoints were long-term wound healing, related re-interventions, and perineal herniation. The perineal hernia rate was assessed using Kaplan Meier analysis.

Results
Twenty–five patients had a gluteal turnover flap and 194 had primary closure. The uncomplicated perineal wound-healing rate within 30 days was 68% (17/25) after gluteal turnover flap versus 64% (124/194) after primary closure, OR 2.246; 95% CI 0.734–6.876; p = 0.156 in multivariable analysis. No major wound complications requiring surgical re-intervention occurred after flap closure. Eighteen patients with gluteal turnover flap completed 12-month follow-up, and none of them had chronic perineal sinus, compared to 6% (11/173) after primary closure (p = 0.604). The symptomatic 18-month perineal hernia rate after flap closure was 0%, compared to 9% after primary closure (p = 0.184).

Conclusions
The uncomplicated perineal wound-healing rate after the gluteal turnover flap and primary closure after APR is similar, and no chronic perineal sinus or perineal hernia occurred after flap closure. Future studies have to confirm potential benefits of the gluteal turnover flap.
The influence of heavy metals on the shape and asymmetry of wings of female Polistes nimpha (Hymenoptera, Vespidae) living on contaminated sites
Authors: Mielczarek Anna , Mielczarek Łukasz , Wojciechowicz-Żytko Elżbieta 
Published: July 2021

AbstractThe aim of the present study was to determine the fluctuating asymmetry of the first pair of wings in females Polistes nimpha (Christ, 1791) living in an environment contaminated with heavy metals. The average concentration of Zn, Cd and Pb in the bodies of the insects varied depending on the distance from the source of contamination, reaching the highest values on the site closest to the source of contamination and the lowest at the most distant site. As a result of the morphometric analyses, significant differences were found in the asymmetry values of the first pair of wings depending on the level of Zn, Cd, Pb accumulated by the wasps. In the case of shape asymmetry, differences were found for all the effects studied (year of capture and site). Significant differences were also found in the size of wings between individuals captured on Sites 1 and 2 and those caught on Site 3. Specimens caught on site characterized by the lowest concentration of heavy metals in the topsoil, proved to be significantly larger than the insects collected on the other sites. There were no differences in the size of individuals between the different years of capture. Based on the results obtained by us, it can be assumed that the wings of P. nimpha females may become a useful object in studying the impact of environmental stress of Zn, Cd and Pb pollution on the symmetry of their wings.
Sequential group recommendations based on satisfaction and disagreement scores
Authors: Stratigi Maria , Pitoura Evaggelia , Nummenmaa Jyrki , Stefanidis Kostas 
Published: July 2021

AbstractRecently, group recommendations have gained much attention. Nevertheless, most approaches consider only one round of recommendations. However, in a real-life scenario, it is expected that the history of previous recommendations is exploited to tailor the recommendations towards meeting the needs of the group members. Such history should include not only which items the system suggested, but also the reaction of the members to these items. This work introduces the problem of sequential group recommendations, by exploiting the concept of satisfaction and disagreement. Satisfaction describes how well the group received the suggested items. Disagreement describes the satisfaction bias among the group members. We utilize these concepts in three new aggregation methods, SDAA, SIAA and Average+, designed to address the specific challenges introduced by sequential group recommendations. We experimentally show the effectiveness of our methods using big real datasets for both stable and ephemeral groups.
Travelling Waves for Adaptive Grid Discretizations of Reaction Diffusion Systems I: Well-Posedness
Authors: Hupkes H. J. , Van Vleck E. S. 
Published: July 2021

AbstractIn this paper we consider a spatial discretization scheme with an adaptive grid for the Nagumo PDE. In particular, we consider a commonly used time dependent moving mesh method that aims to equidistribute the arclength of the solution under consideration. We assume that the discrete analogue of this equidistribution is strictly enforced, which allows us to reduce the effective dynamics to a scalar non-local problem with infinite range interactions. We show that this reduced problem is well-posed and obtain useful estimates on the resulting nonlinearities. In the sequel papers (Hupkes and Van Vleck in Travelling waves for adaptive grid discretizations of reaction diffusion systems II: linear theory; Travelling waves for adaptive grid discretizations of reaction diffusion systems III: nonlinear theory) we use these estimates to show that travelling waves persist under these adaptive spatial discretizations.
A Truly Spatial Random Forests Algorithm for Geoscience Data Analysis and Modelling
Authors: Talebi Hassan , Peeters Luk J. M. , Otto Alex , Tolosana-Delgado Raimon 
Published: July 2021

AbstractSpatial data mining helps to find hidden but potentially informative patterns from large and high-dimensional geoscience data. Non-spatial learners generally look at the observations based on their relationships in the feature space, which means that they cannot consider spatial relationships between regionalised variables. This study introduces a novel spatial random forests technique based on higher-order spatial statistics for analysis and modelling of spatial data. Unlike the classical random forests algorithm that uses pixelwise spectral information as predictors, the proposed spatial random forests algorithm uses the local spatial-spectral information (i.e., vectorised spatial patterns) to learn intrinsic heterogeneity, spatial dependencies, and complex spatial patterns. Algorithms for supervised (i.e., regression and classification) and unsupervised (i.e., dimension reduction and clustering) learning are presented. Approaches to deal with big data, multi-resolution data, and missing values are discussed. The superior performance and usefulness of the proposed algorithm over the classical random forests method are illustrated via synthetic and real cases, where the remotely sensed geophysical covariates in North West Minerals Province of Queensland, Australia, are used as input spatial data for geology mapping, geochemical prediction, and process discovery analysis.
Some aspects of quantum sufficiency for finite and full von Neumann algebras
Authors: Łuczak Andrzej 
Published: July 2021

AbstractSome features of the notion of sufficiency in quantum statistics are investigated. Three kinds of this notion are considered: plain sufficiency (called simply: sufficiency), strong sufficiency and Umegaki’s sufficiency. It is shown that for a finite von Neumann algebra with a faithful family of normal states the minimal sufficient von Neumann subalgebra is sufficient in Umegaki’s sense. Moreover, a proper version of the factorization theorem of Jenčová and Petz is obtained. The structure of the minimal sufficient subalgebra is described in the case of pure states on the full algebra of all bounded linear operators on a Hilbert space.
Teaching as Altered Knowledge: Rethinking the Teaching Practice with Michel De Certeau
Authors: Rovea Federico 
Published: July 2021

AbstractMichel De Certeau’s scholars have rarely explored the pedagogical potential of the French thinker’s thought. This paper aims at reconstructing the question of the teaching practice in De Certeau’s works and, building on such reconstruction, it proposes a possible ‘heterological’ comprehension of teaching. Moving from an early writing dealing specifically with the teacher’s identity, the paper shows how the famous dyad of strategies and tactics exposed inThe practice of everyday lifecan be usefully applied to teaching and studying and helps further elaborate the question of teaching. From this analysis, the teacher will emerge as the owner of a strategic knowledge that, if he wants to teach, needs to be altered by the uncanny and tactical presence of the student. Teaching will finally be shown as the practice of alteration of knowledge operated by the other of such knowledge, namely, the student. In such alteration of knowledge lies the potential of a heterological comprehension of teaching.
How (not) to construct worlds with responsibility
Authors: Lampert Fabio , Merlussi Pedro 
Published: July 2021

AbstractIn a recent article, P. Roger Turner and Justin Capes argue that no one is, or ever was, even partly morally responsible for certain world-indexed truths. Here we present our reasons for thinking that their argument is unsound: It depends on the premise that possible worlds are maximally consistent states of affairs, which is, under plausible assumptions concerning states of affairs, demonstrably false. Our argument to show this is based on Bertrand Russell’s original ‘paradox of propositions’. We should then opt for a different approach to explain world-indexed truths whose upshot is that we may be (at least partly) morally responsible for some of them. The result to the effect that there are no maximally consistent states of affairs is independently interesting though, since this notion motivates an account of the nature of possible worlds in the metaphysics of modality. We also register in this article, independently of our response to Turner and Capes, and in the spirit of Russell’s aforementioned paradox and many other versions thereof, a proof of the claim that there is no set of all true propositions one can render false.
Phylogenetic and evolutionary analysis of foot-and-mouth disease virus A/ASIA/Sea-97 lineage
Authors: Bae Soyeon , Li Vladimir , Hong Juyong , Kim Jin Nam , Kim Heebal 
Published: July 2021

AbstractFoot-and-mouth disease virus (FMDV) A/ASIA/Sea-97 is a predominant lineage in Southeast Asia and East Asia. However, Sea-97 lineage has not been well studied since its first outbreak in Thailand in 1997. Thus, we conducted phylogenetic and evolutionary analysis of Sea-97 using 224 VP1 sequences of FMDV A/ASIA during 1960 and 2018. Phylogenetic analysis revealed that Sea-97 lineage can be classified into five groups (G1–G5). After the emergence of G2 from G1, the genetic diversity of Sea-97 increased sharply, causing divergence into G3, G4 and G5. During this evolutionary process, Sea-97 lineage, which was initially found only in some countries in Southeast Asia, gradually spread to East Asia. The evolution rate of this lineage was estimated to be 1.2 × 10–2 substitutions/site/year and there were many differences in amino acid residues compared to vaccine strain. Substitutions at antigenically important sites may affect the efficacy of the vaccine, suggesting the need for appropriate vaccine strains. Our results could provide meaningful information to understand comprehensive characteristic of Sea-97 lineage.
Does it pay more to be green in family firms than in non-family firms?
Authors: Garcés-Ayerbe Concepción , Rivera-Torres Pilar , Murillo-Luna Josefina L. , Suárez-Gálvez Cristina 
Published: July 2021

AbstractThe contradictory empirical evidence about whether the effect of companies' environmental investments on financial results is positive, negative or not significant has been explained by the different conditions and contexts that facilitate or hinder the ability to generate a win–win situation. This explanation has gradually led the academic debate to consider the factors and conditions that moderate such a relationship. In this document, we analyse the relevant but scarcely studied moderating effect of the condition of being a family firm, by integrating the socioemotional wealth (SEW) perspective into the natural-resource-based view (NRBV). Based on the analysis of panel data from 2936 Spanish manufacturing firms, covering the period 2009–2016, we offer empirical evidence showing that the financial benefits derived from environmental investment are positive and significant in family firms, while this is not so in non-family firms. Furthermore, our results show that intrinsic characteristics such as the sector, size or age of the company also condition the financial results of environmental investments.
A Longitudinal Analysis of Naturalization and International Migration in Switzerland, 2011–2017
Authors: Galeano Juan , Pont Aurélie , Wanner Philippe 
Published: July 2021

AbstractThe notion of residential settlement associated with the acquisition of new citizenship has been recently challenged by a number of studies highlighting its instrumentality as a subsequent mobility factor. The long and diverse history of Switzerland as a country of immigration and the availability of rich data on naturalization and international migration that allow individuals to be followed over time make this country a valuable case for investigating the impact of naturalization on international (return or onward) migration. Using longitudinal data, we follow 88,900 immigrants who entered the country between 1998 and 2000 over a period of 84 months between January 2011 and December 2017, documenting changes in naturalization status and in migratory movements and their direction. Using different implementations of a Cox proportional hazards model, we examine whether and under what conditions the international migration behaviour of naturalized persons differs from that of non-naturalized persons. Our results show that the population accessing naturalization tends to be less mobile, but also that among third-country nationals, naturalization can trigger further international mobility, in particular among those with poor economic performance and with no family ties in Switzerland.