cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Evaluation der Präferenz, des Anforderungsgrades und der Vorbereitungsintensität auf aktuelle anatomische Prüfungsformate durch Studierende der Humanmedizin an der Charité Universitätsmedizin Berlin
Creators: name: Steinborn, Anna
name: Werner, Susanne
name: März, Maren
name: Brunk, Irene
Publisher: name: German Medical Science GMS Publishing House
Year: 2019
Subjects: subject: 610 Medical sciences; Medicine

description: Ziel: Studien kritisieren, dass der Evaluation anatomischer Prüfungsformate bisher unzureichend nachgegangen wurde [ref:1] und einige Prüfungsformate das anatomische Wissen nur inadäquat prüfen [ref:2]. Zum Zweck der Qualitätssicherung der anatomischen Prüfungen[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Gemeinsame Jahrestagung der Gesellschaft für Medizinische Ausbildung (GMA), des Arbeitskreises zur Weiterentwicklung der Lehre in der Zahnmedizin (AKWLZ) und der Chirurgischen Arbeitsgemeinschaft Lehre (CAL)
In-the-wild Facial Expression Recognition in Extreme Poses
Creators: name: Yang, Fei
name: Zhang, Qian
name: Zheng, Chi
name: Qiu, Guoping
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: In the computer research area, facial expression recognition is a hot research problem. Recent years, the research has moved from the lab environment to in-the-wild circumstances. It is challenging, especially under extreme poses. But current expression detection systems are trying to avoid the pose effects and gain the general applicable ability. In this work, we solve the problem in the opposite approach. We consider the head poses and detect the expressions within special head poses. Our work includes two parts: detect the head pose and group it into one pre-defined head pose class; do facial expression recognize within each pose class. Our experiments show that the recognition results with pose class grouping are much better than that of direct recognition without considering poses. We combine the hand-crafted features, SIFT, LBP and geometric feature, with deep learning feature as the representation of the expressions. The handcrafted features are added into the deep learning framework along with the high level deep learning features. As a comparison, we implement SVM and random forest to as the prediction models. To train and test our methodology, we labeled the face dataset with 6 basic expressions.
description: Published on ICGIP2017
Unification of Rare and Weak Detection Models using Moderate Deviations Analysis and Log-Chisquared P-values
Creators: name: Kipnis, Alon
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62H17 (Primary) 62H15, 62G10 (Secondary)

description: Rare and Weak models for multiple hypothesis testing assume that only a small proportion of the tested hypotheses concern non-null effects and the individual effects are only moderately large, so they generally do not stand out individually, for example in a Bonferroni analysis. Such models have been studied in quite a few settings, for example in some cases studies focused on an underlying Gaussian means model for the hypotheses being tested; in others, Poisson and Binomial. Such seemingly different models have the following common structure. Summarizing the evidence of individual tests by the negative logarithm of its P-value, the model is asymptotically equivalent to a situation in which most negative log P-values have a standard exponential distribution but a small fraction might have an alternative distribution which is approximately noncentral chisquared on one degree of freedom. We characterize the asymptotic performance of global tests combining asymptotic log-chisquared P-values in terms of the chisquared mixture parameters: the scaling parameter controlling heteroscedasticity, the non-centrality parameter, and the parameter controlling the rarity of individual non-null effects. In a phase space involving the last two parameters, we derive a region where all tests are asymptotically powerless. Outside of this region, the Berk-Jones and the Higher Criticism tests have maximal power. Inference techniques based on the minimal P-value, false-discovery rate controlling, and Fisher's combination test have sub-optimal asymptotic phase diagrams. Our analysis yields the asymptotic power of global testing in various new rare and weak models, including two-sample heteroscedastic normal mixtures and binomial experiments with perturbed probabilities of success.
description: Including supplementary material
Support the Underground: Characteristics of Beyond-Mainstream Music Listeners
Creators: name: Kowald, Dominik
name: Muellner, Peter
name: Zangerle, Eva
name: Bauer, Christine
name: Schedl, Markus
name: Lex, Elisabeth
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: Music recommender systems have become an integral part of music streaming services such as Spotify and Last.fm to assist users navigating the extensive music collections offered by them. However, while music listeners interested in mainstream music are traditionally served well by music recommender systems, users interested in music beyond the mainstream (i.e., non-popular music) rarely receive relevant recommendations. In this paper, we study the characteristics of beyond-mainstream music and music listeners and analyze to what extent these characteristics impact the quality of music recommendations provided. Therefore, we create a novel dataset consisting of Last.fm listening histories of several thousand beyond-mainstream music listeners, which we enrich with additional metadata describing music tracks and music listeners. Our analysis of this dataset shows four subgroups within the group of beyond-mainstream music listeners that differ not only with respect to their preferred music but also with their demographic characteristics. Furthermore, we evaluate the quality of music recommendations that these subgroups are provided with four different recommendation algorithms where we find significant differences between the groups. Specifically, our results show a positive correlation between a subgroup's openness towards music listened to by members of other subgroups and recommendation accuracy. We believe that our findings provide valuable insights for developing improved user models and recommendation approaches to better serve beyond-mainstream music listeners.
description: Accepted for publication in EPJ Data Science - link to published version will be added
Leading-order corrections to charged rotating AdS black holes thermodynamics
Creators: name: Upadhyay, Sudhaker
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper, we consider a charged rotating AdS black holes in four dimensions and study the effects of leading-order thermal corrections on the thermodynamics of such system explicitly. The first-order corrected thermodynamical quantities also satisfy the first-law of thermodynamics of the black holes. The holographic duality between the charged rotating AdS black holes and Van der Waals fluid is also emphasized through the $P-v$ diagram. Finally, we study the effects of the leading-order thermal corrections on the stability of the charged rotating black holes.
description: 10 pages, 14 captioned figures, published in General Relativity and Gravitation
Generative artificial intelligence and investment recommendations
Creators: name: Mabwe, Kumbirai
name: Aminu, Nasir
name: Ivanov, Stanislav
name: Dimov, Diyan
Publisher: name: Cardiff Metropolitan University
Year: 2024
Subjects: classificationCode: 460299
subject: Artificial intelligence not elsewhere classified
classificationCode: 380107
subject: Financial economics
classificationCode: 350208
subject: Investment and risk management

description: Generative AI has created a wave of disruptive innovation that will influence all industries globally. The finance and investment discipline is not immune from this wave. Generative artificial intelligence tools have the potential to revolutionise investments as they can do what investment practitioners should do, namely, making investment recommendations. Their ability to efficiently extract and process a wide range of information makes them suitable to serve as financial and investment advisors. For instance, ChatGPT has been found to be capable of serving as a financial advisor as it exhibits a higher level of financial literacy than human investors who make random guesses. But the question remains: how accurate, specific, relevant, and justified are the recommendations?
Vanrija meifongana Kachalkin, Yurkov & Boekhout 2020, sp. nov.
Creators: name: Li, A. - H.
name: Yuan, F. - X.
name: Groenewald, M.
name: Bensch, K.
name: Yurkov, A. M.
name: Li, K.
name: Han, P. - J.
name: Guo, L. - D.
name: Aime, M. C.
name: Sampaio, J. P.
name: Jindamorakot, S.
name: Turchetti, B.
name: Inacio, J.
name: Fungsin, B.
name: Wang, Q. - M.
name: Bai, F. - Y.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Fungi
Basidiomycota
Tremellomycetes
Trichosporonales
Trichosporonaceae
Vanrija
Vanrija meifongana

description: Vanrija meifongana C.F. Lee ex Kachalkin, Yurkov & Boekhout, sp. nov. MycoBank MB831709.
For description see Antonie van Leeuwenhoek 99(3): 647 (2011).
 Holotype: CBS 11424 (preserved in a metabolically inactive state).
 Synonyms: Asterotremella meifongana C.F. Lee, in Liu et al., Antonie van Leeuwenhoek 99(3): 647 (2011), nom. inval., Art. 40.7 (Shenzhen).
 = Vanrija meifongana C.F. Lee ex Kachalkin, Yurkov & Boekhout, Stud. Mycol. 81: 142 (2015), nom. inval., Art. 40.7 (Shenzhen).
description: Published as part of Li, A. - H., Yuan, F. - X., Groenewald, M., Bensch, K., Yurkov, A. M., Li, K., Han, P. - J., Guo, L. - D., Aime, M. C., Sampaio, J. P., Jindamorakot, S., Turchetti, B., Inacio, J., Fungsin, B., Wang, Q. - M. & Bai, F. - Y., 2020, Diversity and phylogeny of basidiomycetous yeasts from plant leaves and soil: Proposal of two new orders, three new families, eight new genera and one hundred and seven new species, pp. 17-140 in Studies In Mycology 96 on page 137, DOI: 10.1016/j.simyco.2020.01.002, http://zenodo.org/record/10497182
An XMM-Newton look at the strongly variable radio-weak BL Lac Fermi J1544-0639
Creators: name: Ursini, F.
name: Bassani, L.
name: Panessa, F.
name: Pian, E.
name: Bruni, G.
name: Bazzano, A.
name: Masetti, N.
name: Sokolovsky, K.
name: Ubertini, P.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Fermi J1544-0639/ASASSN-17gs/AT2017egv was identified as a gamma-ray/optical transient on May 15, 2017. Subsequent multiwavelength observations suggest that this source may belong to the new class of radio-weak BL Lacs. We studied the X-ray spectral properties and short-term variability of Fermi J1544-0639 to constrain the X-ray continuum emission mechanism of this peculiar source. We present the analysis of an XMM-Newton observation, 56 ks in length, performed on February 21, 2018. The source exhibits strong X-ray variability, both in flux and spectral shape, on timescales of ~10 ks, with a harder-when-brighter behaviour typical of BL Lacs. The X-ray spectrum is nicely described by a variable broken power law, with a break energy of around 2.7 keV consistent with radiative cooling due to Comptonization of broad-line region photons. We find evidence for a `soft excess', nicely described by a blackbody with a temperature of ~0.2 keV, consistent with being produced by bulk Comptonization along the jet.
description: 11 pages, 12 figures. Accepted for publication in Astronomy & Astrophysics
Signal-to-noise ratio is more important than sampling rate in beat-to-beat interval estimation from optical sensors
Creators: name: Zaunseder, Sebastian
name: Vehkaoja, Antti
name: Fleischhauer, Vincent
name: Antink, Christoph Hoog
Publisher: name: arXiv
Year: 2022
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Photoplethysmographic Imaging (PPGI) allows the determination of pulse rate variability from sequential beat-to-beat intervals (BBI) and pulse wave velocity from spatially resolved recorded pulse waves. In either case, sufficient temporal accuracy is essential. The presented work investigates the temporal accuracy of BBI estimation from photoplethysmographic signals. Within comprehensive numerical simulation, we systematically assess the impact of sampling rate, signal-to-noise ratio (SNR), and beat-to-beat shape variations on the root mean square error (RMSE) between real and estimated BBI. Our results show that at sampling rates beyond 14 Hz only small errors exist when interpolation is used. For example, the average RMSE is 3 ms for a sampling rate of 14 Hz and an SNR of 18 dB. Further increasing the sampling rate only results in marginal improvements, e.g. more than tripling the sampling rate to 50 Hz reduces the error by approx. 14%. The most important finding relates to the SNR, which is shown to have a much stronger influence on the error than the sampling rate. For example, increasing the SNR from 18 dB to 24 dB at 14 Hz sampling rate reduced the error by almost 50% to 1.5 ms. Subtle beat-to-beat shape variations, moreover, increase the error decisively by up to 800%. Our results are highly relevant in three regards: first, they partially explain different results in the literature on minimum sampling rates. Second, they emphasize the importance to consider SNR and possibly shape variation in investigations on the minimal sampling rate. Third, they underline the importance of appropriate processing techniques to increase SNR. Importantly, though our motivation is PPGI, the presented work immediately applies to contact PPG and PPG in other settings such as wearables. To enable further investigations, we make the scripts used in modelling and simulation freely available.
description: 18 pages, 11 figures
title: Progresstest Medizin: Testergebnisse vor und nach der Umstellung von papier- auf computerbasierte Durchführung
Creators: name: Kania, Ruth
name: Hofmann, Marzellus
name: Ehlers, Jan Peter
name: Zupanic, Michaela
Publisher: name: German Medical Science GMS Publishing House
Year: 2019
Subjects: subject: 610 Medical sciences; Medicine

description: Einleitung: Die zunehmende Einbettung von Progress Tests in eine digitale Umgebung wird überwiegend positiv diskutiert [ref:1], da das Engagement der Studierenden durch ein schnelles formatives Feedback und die damit verbundenen wertvollen Lernerfahrungen verbessert wird [ref:2].[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Gemeinsame Jahrestagung der Gesellschaft für Medizinische Ausbildung (GMA), des Arbeitskreises zur Weiterentwicklung der Lehre in der Zahnmedizin (AKWLZ) und der Chirurgischen Arbeitsgemeinschaft Lehre (CAL)
title: Ordnung über den Zugang und die Zulassung für den konsekutiven Masterstudiengang Mathematik an der Carl-Friedrich-Gauß-Fakultät für Mathematik und Informatik der Technischen Universität Braunschweig
Creators: name: :None
Publisher: name: Technische Universität Braunschweig, Fakultät 1
Year: 2006
Subjects: subject: Zulassungsordnung
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig, vol. 443
Cyclical period changes in Z Chamaeleontis
Creators: name: Baptista, R.
name: Jablonski, F.
name: Oliveira, E.
name: Vrielmann, S.
name: Woudt, P. A.
name: Catalan, M. S.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report the identification of cyclical changes in the orbital period of the eclipsing dwarf nova Z Cha. We used times of mid-eclipse collected from the literature and our new eclipse timings to construct an observed-minus-calculated diagram covering 30 years of observations (1972-2002). The data present cyclical variations that can be fitted by a linear plus sinusoidal function with period 28+/-2 yr and amplitude 1.0+/-0.2 minute. The statistical significance of this period by an F-test is larger than 99.9%. The derived fractional period change, Delta P/P= 4.4 x 10^{-7}, is comparable to that of other short-period cataclysmic variables (CVs), but is one order of magnitude smaller than those of the long-period CVs. Separate fits to the first and second half of the data lead to ephemerides with quite different cycle periods and amplitudes, indicating that the variation is not sinusoidal or, most probably, is not strictly periodic. The observed cyclical period change is possibly caused by a solar-type magnetic activity cycle in the secondary star. An incremental variation in the Roche lobe of the secondary star of Delta R_{L2}/R_{L2} = 1.7 x 10^{-4} is required in order to explain both the observed period change and the modulation of the quiescent brightness previously reported by Ak, Ozkan & Mattei.
description: 5 pages, 1 postscript figure, coded with MNRAS latex style file. To appear in Monthly Notices of the Royal Astronomical Society
КИБЕРСПОРТ: ИСТОРИЯ СТАНОВЛЕНИЯ, СОВРЕМЕННОЕ СОСТОЯНИЕ И ПЕРСПЕКТИВЫ РАЗВИТИЯ
Creators: name: Собирова, Насиба
Publisher: name: Zenodo
Year: 2024

description: Статья раскрывает историю становления киберспорта, в статье выделены этапы развития киберспорта и намечены перспектевы развития этого вида спорта. Приводятся выводы о том, что киберспорт на сегодняшний день является активно развивающейся спортивной дисциплиной.
Crystalline representations and Wach modules in the relative case
Creators: name: Abhinandan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11F80, 11S25, 14F30

description: We study the notion of Wach modules in relative setting, generalizing the arithmetic case. Over an unramified base, for a $p$-adic representation admitting such structure, we examine the relationship between its relative Wach module and filtered $(φ, \partial)$-module. Moreover, we show that such a representation is crystalline (in the sense of Brinon), and one can recover its filtered $(φ, \partial)$-module from the relative Wach module. Conversely, for low Hodge-Tate weights $[0, p-2]$, we construct relative Wach modules from free relative Fontaine-Laffaille modules (in the sense of Faltings).
description: Accepted for publication in Annales de l'Institut Fourier
title: Advanced peer-assisted learning: Entwicklung und Auswertung eines neuen Evaluationskonzeptes im Erste-Hilfe-Kurs der Skills Labs Bochum
Creators: name: Achenbach, Jannis
name: Thomas, Michaela
name: Hermann, Jan
name: Hanefeld, Christoph
name: Schäfer, Thorsten
Publisher: name: German Medical Science GMS Publishing House
Year: 2019
Subjects: subject: 610 Medical sciences; Medicine

description: Hintergrund: Die Skills Labs der Ruhr-Universität Bochum bieten an insgesamt sieben Standorten die Möglichkeit praktische Fertigkeiten zu erlernen. Durch fakultative, extracurriculare Tutorien können technische Fertigkeiten, Untersuchungstechniken und Vorgehensweisen in Notfallsituationen[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Gemeinsame Jahrestagung der Gesellschaft für Medizinische Ausbildung (GMA), des Arbeitskreises zur Weiterentwicklung der Lehre in der Zahnmedizin (AKWLZ) und der Chirurgischen Arbeitsgemeinschaft Lehre (CAL)
Multiparticle Biased DLA with surface diffusion: a comprehensive model of electrodeposition
Creators: name: Castro, Mario
name: Cuerno, Rodolfo
name: Sanchez, Angel
name: Dominguez-Adame, Francisco
Publisher: name: arXiv
Year: 2000
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Pattern Formation and Solitons (nlin.PS)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We present a complete study of the Multiparticle Biased Diffusion-Limited Aggregation (MBDLA) model supplemented with surface difussion (SD), focusing on the relevance and effects of the latter transport mechanism. By comparing different algorithms, we show that MBDLA+SD is a very good qualitative model for electrodeposition in practically all the range of current intensities {\em provided} one introduces SD in the model in the proper fashion: We have found that the correct procedure involves simultaneous bulk diffusion and SD, introducing a time scale arising from the ratio of the rates of both processes. We discuss in detail the different morphologies obtained and compare them to the available experimental data with very satisfactory results. We also characterize the aggregates thus obtained by means of the dynamic scaling exponents of the interface height, allowing us to distinguish several regimes in the mentioned interface growth. Our asymptotic scaling exponents are again in good agreement with recent experiments. We conclude by discussing a global picture of the influence and consequences of SD in electrodeposition.
description: 15 pages, 20 figures, accepted for publication in Physical Review E
Vanrija nantouana Kachalkin, Yurkov & Boekhout 2020, sp. nov.
Creators: name: Li, A. - H.
name: Yuan, F. - X.
name: Groenewald, M.
name: Bensch, K.
name: Yurkov, A. M.
name: Li, K.
name: Han, P. - J.
name: Guo, L. - D.
name: Aime, M. C.
name: Sampaio, J. P.
name: Jindamorakot, S.
name: Turchetti, B.
name: Inacio, J.
name: Fungsin, B.
name: Wang, Q. - M.
name: Bai, F. - Y.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Fungi
Basidiomycota
Tremellomycetes
Trichosporonales
Trichosporonaceae
Vanrija
Vanrija nantouana

description: Vanrija nantouana C.F. Lee ex Kachalkin, Yurkov & Boekhout, sp. nov. MycoBank MB831710.
For description see Antonie van Leeuwenhoek 99(3): 648 (2011).
 Holotype: CBS 10890 (preserved in a metabolically inactive state).
 Synonyms: Asterotremella nantouana C.F. Lee, Antonie van Leeuwenhoek 99(3): 648 (2011), nom. inval., Art. 40.7 (Shenzhen).
 = Vanrija nantouana C.F. Lee ex Kachalkin, Yurkov & Boekhout, Stud. Mycol. 81: 142 (2015), nom. inval., Art. 40.7 (Shenzhen).
description: Published as part of Li, A. - H., Yuan, F. - X., Groenewald, M., Bensch, K., Yurkov, A. M., Li, K., Han, P. - J., Guo, L. - D., Aime, M. C., Sampaio, J. P., Jindamorakot, S., Turchetti, B., Inacio, J., Fungsin, B., Wang, Q. - M. & Bai, F. - Y., 2020, Diversity and phylogeny of basidiomycetous yeasts from plant leaves and soil: Proposal of two new orders, three new families, eight new genera and one hundred and seven new species, pp. 17-140 in Studies In Mycology 96 on page 137, DOI: 10.1016/j.simyco.2020.01.002, http://zenodo.org/record/10497182
Constraints on spacetime manifold in Euclidean supergravity in terms of Dirac eigenvalues
Creators: name: Ciuhu, C.
name: Vancea, I. V.
Publisher: name: arXiv
Year: 1998
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We generalize previous work on Dirac eigenvalues as dynamical variables of Euclidean supergravity. The most general set of constraints on the curvatures of the tangent bundle and on the spinor bundle of the spacetime manifold under which spacetime admits Dirac eigenvalues as observables, are derived.
description: 14 pages, REVTeX file
MOESM1 of Diaphragm thickening in cardiac surgery: a perioperative prospective ultrasound study
Creators: name: Pierre-Henri Moury
name: Cuisinier, Adrien
name: Durand, Michel
name: Bosson, Jean-Luc
name: Chavanon, Olivier
name: Jean-Franรงois Payen
name: Jaber, Samir
name: Albaladejo, Pierre
Publisher: name: figshare
Year: 2019
Subjects: subject: Space Science
subject: Cell Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Science Policy

description: Additional file 1. Left diaphragm analysis.
A Spherically Symmetric Closed Universe as an Example of a 2D Dilatonic Model
Creators: name: Gergely, László Á.
Publisher: name: arXiv
Year: 1999
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the two-dimensional (2D) dilatonic model describing a massless scalar field minimally coupled to the spherically reduced Einstein-Hilbert gravity. The general solution of this model is given in the case when a Killing vector is present. When interpreted in four dimensions, the solution describes either a static or a homogeneous collision of incoming and outgoing null dust streams with spherical symmetry. The homogeneous Universe is closed.
description: 5 pages, 2 figures, to appear in Physical Review D
Efficient Binary Decision Diagram Manipulation in External Memory
Creators: name: Sølvsten, Steffan Christ
name: van de Pol, Jaco
name: Jakobsen, Anna Blume
name: Thomasen, Mathias Weller Berg
Publisher: name: arXiv
Year: 2021
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences
subject: E.1; F.2.2; F.2.1; I.1.2
subject: 68W30 (primary) 68R05, 68Q60, 68R07 (secondary)

description: We follow up on the idea of Lars Arge to rephrase the Reduce and Apply procedures of Binary Decision Diagrams (BDDs) as iterative I/O-efficient algorithms. We identify multiple avenues to simplify and improve the performance of his proposed algorithms. Furthermore, we extend the technique to other common BDD operations, many of which are not derivable using Apply operations alone, and we provide asymptotic improvements for the procedures that can be derived using Apply.
 These algorithms are implemented in a new BDD package, named Adiar. We see very promising results when comparing the performance of Adiar with conventional BDD packages that use recursive depth-first algorithms. For instances larger than 8.2 GiB, our algorithms, in parts using the disk, are 1.47 to 3.69 times slower compared to CUDD and Sylvan, exclusively using main memory. Yet, our proposed techniques are able to obtain this performance at a fraction of the main memory needed by conventional BDD packages to function. Furthermore, with Adiar we are able to manipulate BDDs that outgrow main memory and so surpass the limits of other BDD packages.
description: 41 pages, 14 figures and 7 tables; S{\o}lvsten, S.C. et al. (2022). Adiar: Binary Decision Diagrams in External Memory. In: Tools and Algorithms for the Construction and Analysis of Systems (TACAS 2022)
Vishniacozyma foliicola Yurkov 2020, sp. nov.
Creators: name: Li, A. - H.
name: Yuan, F. - X.
name: Groenewald, M.
name: Bensch, K.
name: Yurkov, A. M.
name: Li, K.
name: Han, P. - J.
name: Guo, L. - D.
name: Aime, M. C.
name: Sampaio, J. P.
name: Jindamorakot, S.
name: Turchetti, B.
name: Inacio, J.
name: Fungsin, B.
name: Wang, Q. - M.
name: Bai, F. - Y.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Fungi
Basidiomycota
Tremellomycetes
Tremellales
Bulleribasidiaceae
Vishniacozyma
Vishniacozyma foliicola

description: Vishniacozyma foliicola Q.M. Wang & F.Y. Bai ex Yurkov, sp. nov. MycoBank MB831680.
For description see J. Gen. Appl. Microbiol. 57(5): 287 (2011).
 Holotype: CGMCC AS 2.2471 (preserved in a metabolically inactive state).
 Synonyms: Cryptococcus foliicola Q.M. Wang & F.Y. Bai, J. Gen. Appl. Microbiol. 57(5): 287 (2011), nom. inval., Art. 40.7 (Shenzhen).
 = Vishniacozyma foliicola Q.M. Wang & F.Y. Bai ex Yurkov, Stud. Mycol. 81: 124 (2015), nom. inval., Art. 40.7 (Shenzhen).
description: Published as part of Li, A. - H., Yuan, F. - X., Groenewald, M., Bensch, K., Yurkov, A. M., Li, K., Han, P. - J., Guo, L. - D., Aime, M. C., Sampaio, J. P., Jindamorakot, S., Turchetti, B., Inacio, J., Fungsin, B., Wang, Q. - M. & Bai, F. - Y., 2020, Diversity and phylogeny of basidiomycetous yeasts from plant leaves and soil: Proposal of two new orders, three new families, eight new genera and one hundred and seven new species, pp. 17-140 in Studies In Mycology 96 on page 137, DOI: 10.1016/j.simyco.2020.01.002, http://zenodo.org/record/10497182
Semi-infinite orbits in affine flag varieties and homology of affine Springer fibers
Creators: name: Bezrukavnikov, Roman
name: Varshavsky, Yakov
Publisher: name: arXiv
Year: 2021
Subjects: subject: Algebraic Geometry (math.AG)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: Let $G$ be a connected reductive group over an algebraically closed field $k$, and let $Fl$ be the affine flag variety of $G$. For every regular semisimple element $γ$ of $G(k((t)))$, the affine Springer fiber $Fl_γ$ can be presented as a union of closed subvarieties $Fl^{\leq w}_γ$, defined as the intersection of $Fl_γ$ with an affine Schubert variety $Fl^{\leq w}$.
 The main result of this paper asserts that if elements $w_1,\ldots,w_n$ are sufficiently regular, then the natural map $H_i(\bigcup_{j=1}^n Fl^{\leq w_j}_γ)\to H_i(Fl_γ)$ is injective for every $i\in{\mathbb Z}$. It plays an important role in our work [BV]. One can view this statement as providing a categorification of the notion of a weighted orbital integral. Along the way we also show that every affine Schubert variety can be written as an intersection of closures of semi-infinite orbits.
description: 34 pages, revised version
Spin current generation in organic antiferromagnets
Creators: name: Naka, Makoto
name: Hayami, Satoru
name: Kusunose, Hiroaki
name: Yanagi, Yuki
name: Motome, Yukitoshi
name: Seo, Hitoshi
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Spin current--a flow of electron spins without a charge current--is an ideal information carrier free from Joule heating for electronic devices. The celebrated spin Hall effect, which arises from the relativistic spin-orbit coupling, enables us to generate and detect spin currents in inorganic materials and semiconductors, taking advantage of their constituent heavy atoms. In contrast, organic materials consisting of molecules with light elements have been believed to be unsuited for spin current generation. Here we show that a class of organic antiferromagnets with checker-plate type molecular arrangements can serve as a spin current generator by applying a thermal gradient or an electric field, even with vanishing spin-orbit coupling. Our findings provide another route to create a spin current distinct from the conventional spin Hall effect and open a new field of spintronics based on organic magnets having advantages of small spin scattering and long lifetime.
description: 10 pages, 4 figures
title: Das Untersuchungstutorium der Skills Labs Bochum: Ein extracurriculares „peer-teaching“ Konzept zur Vertiefung ärztlich-praktischer Fertigkeiten
Creators: name: Achenbach, Jannis
name: Thomas, Michaela
name: Giotis, Nektaria
name: Wüstefeld, Julia
name: Höthker, Julia
name: Erdogan, Habib
name: Schäfer, Thorsten
Publisher: name: German Medical Science GMS Publishing House
Year: 2019
Subjects: subject: 610 Medical sciences; Medicine

description: Hintergrund: Die Skills Labs der Ruhr-Universität Bochum fungieren in der medizinischen Ausbildung als integraler Bestandteil für die Aneignung praktisch relevanter Untersuchungstechniken. Als Vorteil gilt die Möglichkeit der Abbildung realer klinischer Situationen, die in einem sicheren[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Gemeinsame Jahrestagung der Gesellschaft für Medizinische Ausbildung (GMA), des Arbeitskreises zur Weiterentwicklung der Lehre in der Zahnmedizin (AKWLZ) und der Chirurgischen Arbeitsgemeinschaft Lehre (CAL)
The Contribution of Focusing Attention to the Development of the Performance of Athletes with Visual Impairments for Goal Ball from the Point of View of the Algerian Coach
Creators: name: Zidane Fatma Zohra
name: Nouadji Dalila
name: Saci Abdelaziz
name: Mimi Abdellah
name: Zemmar Mohamed
Publisher: name: Zenodo
Year: 2024
Subjects: Attention Span; the Performance; Visual Impairment; Goal Ball.

description: Abstract

The study aims to identify the focus of attention and its contribution to improving the performance of visually impaired Algerian goal ball athletes. For this purpose, we used a descriptive method on a sample consisting of 7 Algerian coaches from the first national division who were purposefully selected. We used a questionnaire, and after collecting and statistically processing the results, we found that attention focus skill has an impact on the performance of goal ball players and is considered important for performance improvement. This confirmed to us that attention focus contributes to enhancing athletes' performance. The researchers recommend that coaches and psychological specialists pay more attention to developing the attention focus skill of players in order to improve their performance.
From Value-based to Hospitality Healthcare, do NHS service users perceive value in hospitable healthcare provision in NHS Wales
Creators: name: Young, Kelly Ann
Publisher: name: Cardiff Metropolitan University
Year: 2024
Subjects: classificationCode: 420311
subject: Health systems
classificationCode: 350402
subject: Hospitality management

description: The concept of value-based healthcare (VBH) was introduced by Porter (2006) to healthcare providers in the United States of America as a new system which would reform healthcare provision. Research in this area has steadily increased, mainly from North America and Europe where the focus was on measuring the relationship between cost and patient outcomes (Vijverberg, 2022). However, recently, there has been an increase in research related to hospitality in healthcare provision (Zsarnoczky-Dulhazi, 2023; Majeed and Kim, 2022; Erickson and Rothberg, 2017; Suess and Mody, 2017). Suess and Mody (2018:1) described healthcare hospitality as ‘healthcare services with hotel-like services’ and focuses on the provision of ‘hotel-like’ atmospherics in healthcare settings. However, much of the existing research is based on case studies in countries where healthcare is both privatised and commercialised
Possible geometries of afterglow generation in the gamma-ray burst GRB990705
Creators: name: Wang, X. Y.
name: Dai, Z. G.
name: Lu, T.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The absorption feature detected in the prompt X-ray emission of GRB990705 has important consequences for its circum-burst environment and therefore on its afterglows. Here we investigate whether the circum-burst environment constrained by the absorption feature could be consistent with the observed H-band afterglow, which exhibits an earlier power law decay but a much faster decay about one day after the burst. Two possible geometries of the afterglow-emitting regions are suggested: 1) afterglow emission produced by the impact of the fireball on the surrounding torus, which serves as the absorbing material of the X-ray feature, as would be expected in the models involving that a supernova explosion precedes the gamma-ray burst by some time; 2)afterglow emission produced in the dense circum-burst medium inside the torus. In case 1), the faster decay at the later time is attributed to the disappearance of the shock due to the counter-pressure in the hot torus illuminated by the burst and afterglow photons. For case 2), the circum-burst medium density is found to be very high ($n\ga 10^4-10^5 {\rm cm^{-3}}$) if the emitting plasma is a jet or even higher if it is spherical. Future better observations of afterglows of GRBs that have absorption features might make it possible to make a more definite choice between these two scenarios.
description: 5 pages, 1 figures, final version, Astronomy & Astrophysics, in press
GeV-TeV gamma-rays produced by electrons in the kpc scale jet as a result of comptonization of the inner jet emission
Creators: name: Bednarek, W.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: A few radio galaxies have been discovered to emit GeV-TeV gamma-ray emission in spite of relatively large viewing angles of their jets. We consider a scenario in which such large angle gamma-ray emission is preferentially produced by isotropically distributed relativistic electrons in the kpc scale jet. These electrons comptonize soft, non-thermal radiation from the inner jet which is beamed due to its relativistic motion. In terms of such a model, we interpret recently discovered TeV gamma-ray emission from the kpc scale jets in Cen~A. Interestingly, due to the geometry of the inverse Compton scattering process, intensity of the gamma-ray emission from the counter-jet is predicted to be on a higher level than the emission from the jet. This is true provided that both, a jet and a counter-jet, are twins, i.e. the physical processes in the jet and counter-jet result in the acceleration of particles in a similar way. However, in general, the jet and counter-jet can differ significantly. Therefore, their relative contribution to the gamma-ray emission from the jets in Cen~A can become more complicated. Investigation of the distribution of the TeV gamma-ray emission along jets of nearby radio galaxies with the next generation telescopes should provide constraints on the considered model and the content of the kpc-scale jets.
description: 12 pages, 4 figures, MNRAS accepted
title: Zulassungsordnung für den Bachelorstudiengang Physik an der Fakultät für Physik der Technischen Universität Braunschweig
Creators: name: :None
Publisher: name: Technische Universität Braunschweig, Fakultät 7
Year: 2006
Subjects: subject: Zulassungsordnung
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig, vol. 442
Roughening and superroughening in the ordered and random two-dimensional sine-Gordon models
Creators: name: Sanchez, Angel
name: Bishop, A. R.
name: Moro, Esteban
Publisher: name: arXiv
Year: 2000
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We present a comparative numerical study of the ordered and the random two-dimensional sine-Gordon models on a lattice. We analytically compute the main features of the expected high temperature phase of both models, described by the Edwards-Wilkinson equation. We then use those results to locate the transition temperatures of both models in our Langevin dynamics simulations. We show that our results reconcile previous contradictory numerical works concerning the superroughening transition in the random sine-Gordon model. We also find evidence supporting the existence of two different low temperature phases for the disordered model. We discuss our results in view of the different analytical predictions available and comment on the nature of these two putative phases.
description: 15 pages, 12 figures, reworded, shortened version, same basic results, two new references, accepted for publication in Physical Review E
Extended particle models based on hollow singular hypersurfaces in general relativity: Classical and quantum aspects of charged textures
Creators: name: Zloshchastiev, Konstantin G.
Publisher: name: arXiv
Year: 1998
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In present paper we construct classical and quantum models of an extended charged particle. One shows that consecutive modelling can be based on the hollow thin-wall charged texture (in the hydrodynamical approach of a perfect fluid) which acquires gravitational mass due to Einstein-Maxwell interaction. We demonstrate that such a model has equilibrium states at the radius equal to the established classical radius of a charged particle. Also we consider quantum aspects of the theory and obtain the (internal) Dirac sea conception in a natural way. Besides, the phenomenological unification on the mass level of the two families of elementary particles, charged pions and electrons and positrons, evidently arises as the effect induced by classical and quantum gravity prior to Standard Model. Finally, in the cosmological connection our model proposes the answer on the important question, what are the real sources of texture matter. Besides, the texture hypothesis means that in the early Universe the topological texture foam phase existed before the lepton-hadron one.
description: I try to unitarily answer both the question "Can sub-lepton/hadron matter be of topological nature" and "What is the origin of cosmic textures and pre-lepton-hadron phase in the early Universe"; slightly shortened version (v2) was published in IJMPD
Vishniacozyma heimaeyensis Xin Zhan Liu, F. Y. Bai, M. Groenew. & Boekhout 2020, sp. nov.
Creators: name: Li, A. - H.
name: Yuan, F. - X.
name: Groenewald, M.
name: Bensch, K.
name: Yurkov, A. M.
name: Li, K.
name: Han, P. - J.
name: Guo, L. - D.
name: Aime, M. C.
name: Sampaio, J. P.
name: Jindamorakot, S.
name: Turchetti, B.
name: Inacio, J.
name: Fungsin, B.
name: Wang, Q. - M.
name: Bai, F. - Y.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Fungi
Basidiomycota
Tremellomycetes
Tremellales
Bulleribasidiaceae
Vishniacozyma
Vishniacozyma heimaeyensis

description: Vishniacozyma heimaeyensis Vishniac ex Xin Zhan Liu, F.Y. Bai, M. Groenew. & Boekhout, sp. nov. MycoBank MB831682.
For description see Canad. J. Microbiol. 48(5): 464 (2002).
 Holotype: CBS 8933 (preserved in a metabolically inactive state).
 Synonyms: Cryptococcus heimaeyensis Vishniac, Canad. J. Microbiol. 48(5): 464 (2002), nom. inval., Art. 40.6 (Shenzhen).
 = Vishniacozyma heimaeyensis Vishniac ex Xin Zhan Liu, F.Y. Bai, M. Groenew. & Boekhout, Stud. Mycol. 81: 124 (2015), nom. inval., Art. 40.6 (Shenzhen).
description: Published as part of Li, A. - H., Yuan, F. - X., Groenewald, M., Bensch, K., Yurkov, A. M., Li, K., Han, P. - J., Guo, L. - D., Aime, M. C., Sampaio, J. P., Jindamorakot, S., Turchetti, B., Inacio, J., Fungsin, B., Wang, Q. - M. & Bai, F. - Y., 2020, Diversity and phylogeny of basidiomycetous yeasts from plant leaves and soil: Proposal of two new orders, three new families, eight new genera and one hundred and seven new species, pp. 17-140 in Studies In Mycology 96 on page 137, DOI: 10.1016/j.simyco.2020.01.002, http://zenodo.org/record/10497182
A Moral Compass for Machine Minds: Cultivating Ethical Decision-Making in Generative AI for Marketing
Creators: name: Almoraish, Ahmed
name: Costello, Joyce
Publisher: name: Cardiff Metropolitan University
Year: 2024
Subjects: classificationCode: 350605
subject: Marketing management (incl. strategy and customer relations)
classificationCode: 460299
subject: Artificial intelligence not elsewhere classified
classificationCode: 500102
subject: Business ethics

description: Imagine a world where AI can paint vibrant portraits, write captivating stories, and craft complex code – and do it so convincing you might swear a human mind was behind it. Enter generative AI, a cutting-edge branch of artificial intelligence that specializes in coining brand-new content in the form text, images, and videos as well as carry on conversations, answer questions, and create code in such a manner that one might think the content was produced by a human (Euchner, 2023). This creative spark comes from massive datasets, where generative AI devours existing content to learn the blueprint of creation (Dermawan, 2023). These vast Language Model for Dialogue Applications (LaMDA) like ChatGPT and Google Bard are spinning narratives that can be scaled to more personalised content (Pichai, 2023).
Makespan Trade-offs for Visiting Triangle Edges
Creators: name: Georgiou, Konstantinos
name: Kundu, Somnath
name: Pralat, Pawel
Publisher: name: arXiv
Year: 2021
Subjects: subject: Discrete Mathematics (cs.DM)
subject: FOS: Computer and information sciences

description: We study a primitive vehicle routing-type problem in which a fleet of $n$unit speed robots start from a point within a non-obtuse triangle $Δ$, where $n \in \{1,2,3\}$. The goal is to design robots' trajectories so as to visit all edges of the triangle with the smallest visitation time makespan. We begin our study by introducing a framework for subdividing $Δ$into regions with respect to the type of optimal trajectory that each point $P$ admits, pertaining to the order that edges are visited and to how the cost of the minimum makespan $R_n(P)$ is determined, for $n\in \{1,2,3\}$. These subdivisions are the starting points for our main result, which is to study makespan trade-offs with respect to the size of the fleet. In particular, we define $ R_{n,m} (Δ)= \max_{P \in Δ} R_n(P)/R_m(P)$, and we prove that, over all non-obtuse triangles $Δ$: (i) $R_{1,3}(Δ)$ ranges from $\sqrt{10}$ to $4$, (ii) $R_{2,3}(Δ)$ ranges from $\sqrt{2}$ to $2$, and (iii) $R_{1,2}(Δ)$ ranges from $5/2$ to $3$. In every case, we pinpoint the starting points within every triangle $Δ$ that maximize $R_{n,m} (Δ)$, as well as we identify the triangles that determine all $\inf_ΔR_{n,m}(Δ)$ and $\sup_ΔR_{n,m}(Δ)$ over the set of non-obtuse triangles.
description: 47 pages, 27 figures
DNS-aided explicitly filtered LES
Creators: name: Bae, H. Jane
name: Lozano-Durán, Adrián
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The equations for LES are formally derived by low-pass filtering the NS equations with the effect of the small scales on the larger ones captured by a SGS model. However, it is known that the LES equations usually employed in practical applications are inconsistent with the filter operator when no explicit filter is used. Moreover, even for explicitly filtered LES, some inconsistencies remain in the wall-normal direction due to the constraining effect of the wall. A typically undesirable effect stemming from the inconsistency between LES and the filtered NS (fNS) equations is that DNS data can not be used to aid SGS modeling. Using the proposed form of the incompressible fNS equations for flows over flat walls in which the continuity equation, the filter operator, and the boundary condition at the wall are consistently formulated, we compute a set of plane turbulent channel flow explicitly filtered LES at different grid resolutions with the SGS term computed from a parallel DNS computation starting with an equivalent initial condition. The results show that the SGS term computed from DNS provide a truthful SGS model for short times until the numerical errors compound and the two parallel computations diverge. The effective time where the statistics remain similar is longer for lower-order statistics such as mean velocity profile, as expected. This demonstrates that with the consistent fNS equations, the abundant DNS data can be used to inform SGS model development for explicitly filtered LES. Moreover, the diverging of statitics at longer times shows that the SGS contribution is not necessarily homogeous as most SGS models assume, and a more precise correlation between the instantaneous LES velocity field and SGS model is required to capture the dynamics of turbulence.