cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
1 Briefkopie an [Johanni Mauricio] Hoffmanno
Creators: name: Scheuchzer, Johann Jacob
Publisher: name: [s.n.]
Year: 1692

description: von [Johannes Jacobus] Scheuchzer
description: Hoffmann, Johann Moritz: 1653-1727, Arzt, Prof. f. Anatomie u. Chemie, Rektor in Altdorf b. Nürnberg; Lehrer v. J.J. Scheuchzer
New bounds on Cantor maximal operators
Creators: name: Shmerkin, Pablo
name: Suomala, Ville
Publisher: name: arXiv
Year: 2021
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: Primary: 42B25, Secondary: 28A80, 60G57

description: We prove $L^p$ bounds for the maximal operators associated to an Ahlfors-regular variant of fractal percolation. Our bounds improve upon those obtained by I. Łaba and M. Pramanik and in some cases are sharp up to the endpoint. A consequence of our main result is that there exist Ahlfors-regular Salem Cantor sets of any dimension $>1/2$ such that the associated maximal operator is bounded on $L^2(\mathbb{R})$. We follow the overall scheme of Łaba-Pramanik for the analytic part of the argument, while the probabilistic part is instead inspired by our earlier work on intersection properties of random measures.
description: v2: 21 pages, 1 figure. Corrected several errors. Main result updated, but all qualitative improvements unchanged
Quantitative bounds for Gowers uniformity of the Möbius and von Mangoldt functions
Creators: name: Tao, Terence
name: Teräväinen, Joni
Publisher: name: arXiv
Year: 2021
Subjects: subject: Number Theory (math.NT)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 11B30, 11N37, 37A44

description: We establish quantitative bounds on the $U^k[N]$ Gowers norms of the Möbius function $μ$ and the von Mangoldt function $Λ$ for all $k$, with error terms of shape $O((\log\log N)^{-c})$. As a consequence, we obtain quantitative bounds for the number of solutions to any linear system of equations of finite complexity in the primes, with the same shape of error terms. We also obtain the first quantitative bounds on the size of sets containing no $k$-term arithmetic progressions with shifted prime difference.
description: 57 pages; Further referee comments incorporated; to appear in J. Eur. Math. Soc
Discrete connections on principal bundles: abelian group case
Creators: name: Fernandez, Javier
name: Juchani, Mariana
name: Zuccalli, Marcela
Publisher: name: arXiv
Year: 2021
Subjects: subject: Differential Geometry (math.DG)
subject: Mathematical Physics (math-ph)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 53B15 (Primary) 70H33, 81Q70 (Secondary)

description: In this note we consider a few interesting properties of discrete connections on principal bundles when the structure group of the bundle is an abelian Lie group. In particular, we show that the discrete connection form and its curvature can be interpreted as singular $1$ and $2$ cochains respectively, with the curvature being the coboundary of the connection form. Using this formalism we prove a discrete analogue of a formula for the holonomy around a loop given by Marsden, Montgomery and Ratiu for (continuous) connections in a similar setting.
Slices and distances: on two problems of Furstenberg and Falconer
Creators: name: Shmerkin, Pablo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Combinatorics (math.CO)
subject: Dynamical Systems (math.DS)
subject: Metric Geometry (math.MG)
subject: FOS: Mathematics
subject: Primary: 11K55, 28A75, 28A80, 37C45, Secondary: 05D99, 28A78

description: We survey the history and recent developments around two decades-old problems that continue to attract a great deal of interest: the slicing $\times 2$, $\times 3$ conjecture of H. Furstenberg in ergodic theory, and the distance set problem in geometric measure theory introduced by K. Falconer. We discuss some of the ideas behind our solution of Furstenberg's slicing conjecture, and recent progress in Falconer's problem. While these two problems are on the surface rather different, we emphasize some common themes in our approach: analyzing fractals through a combinatorial description in terms of ``branching numbers'', and viewing the problems through a ``multiscale projection'' lens.
description: 25 pages, submitted to the Proceedings ofthe ICM 2022
Brief an Johann I Bernoulli
Creators: name: Mairan, Jean Jacques de
Publisher: name: [s.n.]
Year: 1725
Subjects: Bernoulli, Daniel1700-1782
Bernoulli, Jakob1655-1705
Fontenelle, Bernard Le Bovier de1657-1757

description: von Jean Jacques Dortous de Mairan
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
description: Digitalisierung=Digitization=Numérisation TIFF 01.03.2015
On normal numbers and self-similar measures
Creators: name: Algom, Amir
name: Baker, Simon
name: Shmerkin, Pablo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Dynamical Systems (math.DS)
subject: Classical Analysis and ODEs (math.CA)
subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: Let $\lbrace f_i(x)=s_i \cdot x+t_i \rbrace$ be a self-similar IFS on $\mathbb{R}$ and let $β>1$ be a Pisot number. We prove that if $\frac{\log |s_i|}{\log β}\notin \mathbb{Q}$ for some $i$ then for every $C^1$ diffeomorphism $g$ and every non-atomic self similar measure $μ$, the measure $gμ$ is supported on numbers that are normal in base $β$.
description: This article supersedes arXiv:2107.02699
title: Sportliche Identität und Motivation bei österreichischen LeistungsschwimmerInnen
Creators: name: Ruckelshausen, Philip
Year: 2011

description: Die vorliegende Magisterarbeit beschäftigt sich mit der Thematik der sportlichen Identität und Motivation hinsichtlich der Sportausübung im Schwimmsport. Dabei werden einzelne Fragestellungen mit Bezug auf die soziale und personale Identität untersucht. Die Ergebnisse werden geschlechtsspezifisch ausgewertet und miteinander verglichen. Einem theoretischen Input über die Begriffsdefinitionen und über die Voraussetzungen im Leistungssport Schwimmen folgt eine kurze Darstellung der Wettkampfbestimmungen, der Altersklassen und auch der Rekorde in Österreich. Die empirisch-quantitative Studie im Zuge dieser Diplomarbeit wurde mittels Fragebogen an dem 76 LeistungsschwimmerInnen teilnahmen durchgeführt. Die Probanden sind im Durchschnitt 18,51 Jahre alt. 43 männliche Personen und 33 weibliche Personen haben den Fragebogen online ausgefüllt. Die Auswertung des Fragebogens erfolgte mittels Statistikprogramm SPSS 17.0. Die Resultate haben gezeigt, dass es beim Fitnessmotiv einen geschlechtsspezifischen Unterschied gibt. Männern ist das Fitnessmotiv wichtiger als den Frauen.
description: The presented thesis deals with the issues of athletic identity and motivation for sporting activities in the swimming sport. Individual aspects relating to social and personal identity are also examined. The results are analyzed and compared by gender. The theoretical input on the definitions and the conditions in competitive sports swimming is followed by a brief summary of current Austrian Competition Regulations, age groups and records. The empirical-quantitative study used for this thesis was conducted by questionnaire, in which 76 performance swimmers participated. On average the participants were 18.51 years old, with 43 males and 33 females contributing. The completed questionnaires were processed using SPSS 17.0. The results show that each gender assesses their fitness motif differently, with men valuing it more greatly than women.
Brief an Jean Jacques Dortous de Mairan
Creators: name: Bernoulli, Johann
Publisher: name: [s.n.]
Year: 1725
Subjects: Bernoulli, Daniel1700-1782
Fontenelle, Bernard Le Bovier de1657-1757

description: von Johann I Bernoulli
description: Am Briefkopf eigenhändig "à M. de Mairan"
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
description: Digitalisierung=Digitization=Numérisation TIFF 01.03.2015
Multi-AAV Cooperative Path Planning using Nonlinear Model Predictive Control with Localization Constraints
Creators: name: Manoharan, Amith
name: Sharma, Rajnikanth
name: Sujit, P. B.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Robotics (cs.RO)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this paper, we solve a joint cooperative localization and path planning problem for a group of Autonomous Aerial Vehicles (AAVs) in GPS-denied areas using nonlinear model predictive control (NMPC). A moving horizon estimator (MHE) is used to estimate the vehicle states with the help of relative bearing information to known landmarks and other vehicles. The goal of the NMPC is to devise optimal paths for each vehicle between a given source and destination while maintaining desired localization accuracy. Estimating localization covariance in the NMPC is computationally intensive, hence we develop an approximate analytical closed form expression based on the relationship between covariance and path lengths to landmarks. Using this expression while computing NMPC commands reduces the computational complexity significantly. We present numerical simulations to validate the proposed approach for different numbers of vehicles and landmark configurations. We also compare the results with EKF-based estimation to show the superiority of the proposed closed form approach.
Rudolf Dälliker
Creators: name: Schellenberg, Johann Rudolf
Publisher: name: [s.n.]
Year: 1770
Subjects: Daelliker, Johann Rudolf1694-1769

description: [gezeichnet von Johann Ruodlf Schellenberg?]
description: Steht als Vorzeichnung einer Radierung in Zusammenhang mit Füsslis Künstlergeschichte
description: Vermutlich von J.R. Schellenberg, vgl. Brigitte Thanner: Schweizerische Buchillustration im Zeitalter der Aufklärung am Beispiel von Johann Rudolf Schellenberg, Winterthur 1987, Bd. 1, S. 145, Nr. 197
description: Eine andere Zuschreibung an J.C. Füssli auf Grund einer anderen Variante, vgl. Sign. Dälliker, Rudolf I, 1, 1 Pp A5
1 Briefkopie an [Johanni Mauricio] Hoffmanno
Creators: name: Scheuchzer, Johann Jacob
Publisher: name: [s.n.]
Year: 1696

description: von [Johannes Jacobus] Scheuchzer
description: Hoffmann, Johann Moritz: 1653-1727, Arzt, Prof. f. Anatomie u. Chemie, Rektor in Altdorf b. Nürnberg; Lehrer v. J.J. Scheuchzer
Beyond the Erdős discrepancy problem in function fields
Creators: name: Klurman, Oleksiy
name: Mangerel, Alexander P.
name: Teräväinen, Joni
Publisher: name: arXiv
Year: 2022
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11T55, 11K38, 11N37

description: We characterize the limiting behavior of partial sums of multiplicative functions $f:\mathbb{F}_q[t]\to S^1$. In contrast to the number field setting, the characterization depends crucially on whether the notion of discrepancy is defined using long intervals, short intervals, or lexicographic intervals.
 Concerning the notion of short interval discrepancy, we show that a completely multiplicative $f:\mathbb{F}_q[t]\to\{-1,+1\}$ with $q$ odd has bounded short interval sums if and only if $f$ coincides with a "modified" Dirichlet character to a prime power modulus. This confirms the function field version of a conjecture over $\mathbb{Z}$ that such modified characters are extremal with respect to the growth rate of partial sums.
 Regarding the lexicographic discrepancy, we prove that the discrepancy of a completely multiplicative sequence is always infinite if we define it using a natural lexicographic ordering of $\mathbb{F}_{q}[t]$. This answers a question of Liu and Wooley.
 Concerning the long sum discrepancy, it was observed by the Polymath 5 collaboration that the Erdős discrepancy problem admits infinitely many completely multiplicative counterexamples on $\mathbb{F}_q[t]$. Nevertheless, we are able to classify the counterexamples if we restrict to the class of modified Dirichlet characters. In this setting, we determine the precise growth rate of the discrepancy, which is still unknown for the analogous problem over the integers.
description: 38 pages; referee comments incorporated; to appear in Math. Ann
Isometric rigidity of Wasserstein tori and spheres
Creators: name: Gehér, György Pál
name: Titkos, Tamás
name: Virosztek, Dániel
Publisher: name: arXiv
Year: 2022
Subjects: subject: Metric Geometry (math.MG)
subject: Mathematical Physics (math-ph)
subject: Functional Analysis (math.FA)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: Primary: 54E40 Secondary: 46E27, 54E70

description: We prove isometric rigidity for $p$-Wasserstein spaces over finite-dimensional tori and spheres for all $p$. We present a unified approach to proving rigidity that relies on the robust method of recovering measures from their Wasserstein potentials.
Search for pulsars with periods of more than two seconds at declinations from +21$^o$ to +42$^o$
Creators: name: Tyul'bashev, S. A.
name: Tyul'basheva, G. E.
Publisher: name: arXiv
Year: 2025
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: A search was carried out for pulsars with periods (P) from 2 to 90 s in daily observations carried out over an interval of 5 years in a area measuring 6300 sq.deg. The data was obtained on a Large Phased Array (LPA) at a frequency of 111 MHz. The periodograms calculated using the Fast Folding Algorithm (FFA) were used for the search. To increase the sensitivity, the periodograms obtained in different observation sessions were added together. Of the 14 known pulsars that entered the study area, with periods of P>2 s and dispersion measures (DM) less than 200 pc/cm$^3$, 9 were detected. 2 new pulsars have been found. The mean profiles of pulsars are obtained and estimates of their flux densities are given. The open pulsar J1951+28, with a period of P = 7.3342 s and DM = 3.5 pc/cm$^3$, turned out to be one of the pulsars closest to the Sun. The absence of new pulsars with periods of tens of seconds with a search sensitivity of 1 mJy outside the Galactic plane indicates a low probability of the existence of pulsars with extremely long periods. Most likely, the recently found sources of periodic radiation with periods from a minute to tens of minutes are white dwarfs.
description: 8 pages, 4 figures, 1 table. Published in Astronomy Reports, translated by Yandex translator with correction of scientific lexis
Discrete Mechanical Systems in a Dirac Setting: a Proposal
Creators: name: Caruso, Matías I.
name: Fernández, Javier
name: Tori, Cora
name: Zuccalli, Marcela
Publisher: name: arXiv
Year: 2022
Subjects: subject: Differential Geometry (math.DG)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 70G45 (Primary), 37J05 (Secondary)

description: In these notes, we present an alternative version of discrete Dirac mechanics using Dirac structures. We first establish a notion of 'continuous Dirac system' and then propose a definition of discrete Dirac system, proving that it is possible to recover discrete Lagrangian and Hamiltonian systems as particular cases. We also note that this approach allows for kinematic as well as variational constraints.
Active Learning with Weak Supervision for Gaussian Processes
Creators: name: Olmin, Amanda
name: Lindqvist, Jakob
name: Svensson, Lennart
name: Lindsten, Fredrik
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Annotating data for supervised learning can be costly. When the annotation budget is limited, active learning can be used to select and annotate those observations that are likely to give the most gain in model performance. We propose an active learning algorithm that, in addition to selecting which observation to annotate, selects the precision of the annotation that is acquired. Assuming that annotations with low precision are cheaper to obtain, this allows the model to explore a larger part of the input space, with the same annotation budget. We build our acquisition function on the previously proposed BALD objective for Gaussian Processes, and empirically demonstrate the gains of being able to adjust the annotation precision in the active learning loop.
description: This version of the contribution has been accepted for publication, after peer review but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: http://dx.doi.org/10.1007/978-981-99-1642-9_17. Use of this Accepted Version is subject to the publisher's Accepted Manuscript terms of use
1 Briefkopie an [Johanni Christophoro] Wagenseilio
Creators: name: Scheuchzer, Johann Jacob
Publisher: name: [s.n.]
Year: 1694

description: von [Johann Jakob Scheuchzer]
description: Wagenseil, Johann Christoph: 1633-1705, Jurist und Orientalist; Lehrer v. J.J. Scheuchzer
A novel nonconvex, smooth-at-origin penalty for statistical learning
Creators: name: John, Majnu
name: Vettam, Sujit
name: Wu, Yihren
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (stat.ML)
subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: Nonconvex penalties are utilized for regularization in high-dimensional statistical learning algorithms primarily because they yield unbiased or nearly unbiased estimators for the parameters in the model. Nonconvex penalties existing in the literature such as SCAD, MCP, Laplace and arctan have a singularity at origin which makes them useful also for variable selection. However, in several high-dimensional frameworks such as deep learning, variable selection is less of a concern. In this paper, we present a nonconvex penalty which is smooth at origin. The paper includes asymptotic results for ordinary least squares estimators regularized with the new penalty function, showing asymptotic bias that vanishes exponentially fast. We also conducted an empirical study employing deep neural network architecture on three datasets and convolutional neural network on four datasets. The empirical study showed better performance for the new regularization approach in five out of the seven datasets.
description: 15 pages. The animation movie in Figure 2 will run only if the pdf file is downloaded. Comput Stat (2024)
Connectivity rules in networks of PV-expressing interneurons in the dentate gyrus of the hippocampus
Creators: name: Espinoza, Claudia
name: Guzman, Segundo J.
name: Jonas, Peter
Publisher: name: F1000Research
Year: 2017

description: The dentate gyrus is the input region of the hippocampus and plays a key role in several higher brain functions, such as grid-to-place code conversion and pattern separation (Leutgeb et al., 2007). For these computations, the granule cell (GC)-GABAergic interneuron microcircuit plays a critical role. However, the connectivity of this important brain region is largely unknown. To determine the functional connectivity rules in the dentate gyrus, recording from multiple cells is needed (Couey et al., 2013; Guzman et al., 2016; Jiang et al., 2015), including recording from several granule cells (GCs) and identified interneurons. We made simultaneous whole-cell patch-clamp recordings from GCs and parvalbumin-expressing (PV+) interneurons in acute hippocampal slices. PV+ interneurons were identified by the fluorescent expression of the td-Tomato reporter (Ai 14) in a PV-Cre mouse line.

We found that excitatory connections between GC–PV+ have a lower average connection probability (connection probability 9%) while spatially they are more locally confined than the inhibitory connections between PV+–GC (connection probability 26%), in a sample of 1038 pairs tested. We frequently found convergence motifs, with up to 4 GCs converging onto a single PV+ interneuron. This suggests that PV+ interneurons sample the activity of a distributed population of GCs by convergence, and direct their inhibitory output to a large number of GCs by divergence. In addition, we found an enrichment of mutual inhibition motifs between PV+ interneurons (bidirectional chemical and mixed reciprocal chemical associated with electrical coupling). Moreover, the synaptic strength of synapses belonging to overrepresented inhibitory motifs is higher than the synapses that do not belong to motifs. Our results suggest a modular organization of the interneuron network which may be important to maximize the efficiency of separation of similar patterns of GC activation.

1. Couey JJ, Witoelar A, Zhang SJ, Zheng K, Ye J, Dunn B, Czajkowski R, Moser MB, Moser EI, Roudi Y, Witter MP (2013) Recurrent inhibitory circuitry as a mechanism
for grid formation. Nat Neurosci 16:318–24.
2. Guzman SJ, Schlögl A, Frotscher M, Jonas P (2016) Synaptic mechanisms of pattern completion in the hippocampal CA3 network. Science 353:1117–1123.
3. Jiang X, Shen S, Cadwell CR, Berens P, Sinz F, Ecker AS, Patel S, Tolias AS (2015). Principles of connectivity among morphologically defined cell types in adult
neocortex. Science 350:6264.
4. Leutgeb JK, Leutgeb S, Moser MB, Moser EI (2007) Pattern separation in the dentate gyrus and CA3 of the hippocampus. Science 315:961–966.
Sensing with Quantum Light: A perspective
Creators: name: Datta, Animesh
Publisher: name: arXiv
Year: 2025
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: I present my perspective on sensing with quantum light. I summarise the motivations and methodology for identifying quantum enhancements in sensing over a classical sensor. In the real world, this enhancement will be a constant factor, and not increase with the size of the quantum probe as is often advertised. I use a limited survey of interferometry, microscopy, and spectroscopy to extract the vital challenges that must be faced to realise tangible enhancements in sensing with quantum light.
description: 10 pages, 5 figures
1 Briefkopie, 1 Beilagenkopie an [Johannem Jacobum] Mejerum
Creators: name: Scheuchzer, Johann Jacob
Publisher: name: [s.n.]
Year: 1692

description: von [Johann Jakob Scheuchzer]
description: Meyer, Hans Jakob: 1629-1712, Rektor in Winterthur
description: Brief: S. 155-156, 163-164
description: Beilage: Lapidi Vitodurum mittendi (S. 157-162)
GLObal Building heights for Urban Studies (UT-GLOBUS) for city- and street- scale urban simulations: Development and first applications
Creators: name: Kamath, Harsh G.
name: Singh, Manmeet
name: Malviya, Neetiraj
name: Martilli, Alberto
name: He, Liu
name: Aliaga, Daniel
name: He, Cenlin
name: Chen, Fei
name: Magruder, Lori A.
name: Yang, Zong-Liang
name: Niyogi, Dev
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: We introduce University of Texas - Global Building heights for Urban Studies (UT-GLOBUS), a dataset providing building heights and urban canopy parameters (UCPs) for more than 1200 cities or locales worldwide. UT-GLOBUS combines open-source spaceborne altimetry (ICESat-2 and GEDI) and coarse-resolution urban canopy elevation data with a machine-learning model to estimate building-level information. Validation using LiDAR data from six US cities showed UT-GLOBUS-derived building heights had a root mean squared error (RMSE) of 9.1 meters. Validation of mean building heights within 1-km^2 grid cells, including data from Hamburg and Sydney, resulted in an RMSE of 7.8 meters. Testing the UCPs in the urban Weather Research and Forecasting (WRF-Urban) model resulted in a significant improvement (55% in RMSE) in intra-urban air temperature representation compared to the existing table-based local climate zone approach in Houston, TX. Additionally, we demonstrated the dataset's utility for simulating heat mitigation strategies and building energy consumption using WRF-Urban, with test cases in Chicago, IL, and Austin, TX. Street-scale mean radiant temperature simulations using the Solar and LongWave Environmental Irradiance Geometry (SOLWEIG) model, incorporating UT-GLOBUS and LiDAR-derived building heights, confirmed the dataset's effectiveness in modeling human thermal comfort in Baltimore, MD (daytime RMSE = 2.85 C). Thus, UT-GLOBUS can be used for modeling urban hazards with significant socioeconomic and biometeorological risks, enabling finer scale urban climate simulations and overcoming previous limitations due to the lack of building information.
description: 20 pages, 10 figures
3 Briefkopien an Comes [Francesco] Mezzabarba [Birago]
Creators: name: Scheuchzer, Johann Jacob
Publisher: name: [s.n.]
Year: 1695

description: von J[ohann] J[akob] Scheuchzer
description: Mezzabarba Birago, Francesco: 1645-1697, Graf, Jurist, Antiquar, Numismatiker
description: 1 Brief ohne Angabe von Ort und Datum, 1 Brief ohne Angabe des Ortes
Obstructions to distinguished Riemannian metrics via Lorentzian geometry
Creators: name: Aazami, Amir Babak
Publisher: name: arXiv
Year: 2022
Subjects: subject: Differential Geometry (math.DG)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We approach the problem of finding obstructions to curvature distinguished Riemannian metrics by considering Lorentzian metrics to which they are dual in a suitable sense. Obstructions to the latter then yield obstructions to the former. This framework applies both locally and globally, including to compact manifolds, and is sensitive to various aspects of curvature. Here we apply it in two different ways. First, by embedding a Riemannian manifold into a Lorentzian one and utilizing Penrose's "plane wave limit," we find necessary local conditions, in terms of the Hessian of just one function, for large classes of Riemannian metrics to contain within them those that have parallel Ricci tensor, or are Ricci-flat, or are locally symmetric. Second, by considering Riemannian metrics dual to constant curvature Lorentzian metrics via a type of Wick rotation, we are able to rule out the existence of a family of compact Riemannian manifolds (in all dimensions) that deviate from constant curvature in a precise sense.
description: 32 pages; final published version: Fixed a gap in the proof of Proposition 6
title: Einstieg ins Simultandolmetschen
Creators: name: Ladinig, Andrea
Year: 2011

description: In der Arbeit "Einstieg ins Simultandolmetschen: Herausforderungen zu Beginn der Dolmetschausbildung." wird ein Überblick über die Herausforderungen gegeben, die ganz zu Beginn der Ausbildung zur Dolmetscherin oder zum Dolmetscher bewältigt werden müssen. Dabei wird sowohl auf curriculare Aspekte als auch auf die zu erlernenden Teilkompetenzen eingegangen.Im Anschluss daran werden zwei empirische Studien zum Thema Einstiegsschwierigkeiten vorgestellt, die die Grundlage für eine neue empirische Untersuchung am Zentrum für Translationswissenschaft in Wien darstellen. Diese Untersuchung basiert auf subjektiven Einschätzungen seitens der Studierenden, die vor und nach ihrem ersten Einsatz in einer Dolmetschkabine befragt wurden. Bei der Befragung wird sowohl auf dolmetschrelevante Teilkompetenzen als auch das psychische Befinden der Studierenden eingegangen. Die Ergebnisse werden im vierten Kapitel der Arbeit ausführlich dargestellt und besprochen.
description: The master thesis "Einstieg ins Simultandolmetschen: Herausforderungen zu Beginn der Dolmetschausbildung" (At the starting point to simultaneous interpretation: challenges at the beginning of interpretation studies) gives an overview of challenges to be met by students at the beginning of interpreting training. Special attention is paid to curricular issues as well as the different skills to be acquired. In the second part of the thesis, two empirical studies which focus on difficulties at the very beginning of interpreting training are introduced. These studies form the basis for the empirical study carried out for this thesis at the Center of Translation Studies, University of Vienna. This study is based on subjective assessments by the students who filled out the corresponding questionnaire before and after their first interpreting session in a booth. The questionnaire covers skills relevant for interpreting as well as the students’ mental conditions during interpreting. The results of the study are presented and discussed in detail in the fourth chapter of the paper.
Almost primes in almost all short intervals II
Creators: name: Matomäki, Kaisa
name: Teräväinen, Joni
Publisher: name: arXiv
Year: 2022
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11N05, 11N36

description: We show that, for almost all $x$, the interval $(x, x+(\log x)^{2.1}]$ contains products of exactly two primes. This improves on a work of the second author that had $3.51$ in place of $2.1$. To obtain this improvement, we prove a new type II estimate. One of the new innovations is to use Heath-Brown's mean value theorem for sparse Dirichlet polynomials.
description: 26 pages; referee comments incorporated; to appear in Trans. Am. Math. Soc
Classification of Schmidt-rank-two multipartite unitary gates by singular number
Creators: name: Shen, Yi
name: Chen, Lin
name: Yu, Li
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The multipartite unitary gates are called genuine if they are not product unitary operators across any bipartition. We mainly investigate the classification of genuine multipartite unitary gates of Schmidt rank two, by focusing on the multiqubit scenario. For genuine multipartite (excluding bipartite) unitary gates of Schmidt rank two, there is an essential fact that their Schmidt decompositions are unique. Based on this fact, we propose a key notion named as singular number to classify the unitary gates concerned. The singular number is defined as the number of local singular operators in the Schmidt decomposition. We then determine the accurate range of singular number. For each singular number, we formulate the parametric Schmidt decompositions of genuine multiqubit unitary gates under local equivalence. Finally, we extend the study to three-qubit diagonal unitary gates due to the close relation between diagonal unitary gates and Schmidt-rank-two unitaries. We start with discussing two typical examples of Schmidt rank two, one of which is a fundamental three-qubit unitary gate, i.e., the CCZ gate. Then we characterize the diagonal unitary gates of Schmidt rank greater than two. We show that a three-qubit diagonal unitary gate has Schmidt rank at most three, and present a necessary and sufficient condition for such a unitary gate of Schmidt rank three. This completes the characterization of all genuine three-qubit diagonal unitary gates.
description: 23 pages, 2 figures
Investigating Youth's Technical and Ethical Understanding of Generative Language Models When Engaging in Construction and Deconstruction Activities
Creators: name: Morales-Navarro, Luis
Publisher: name: arXiv
Year: 2025
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences
subject: H.5.2; K.3.2

description: The widespread adoption of generative artificial intelligence/machine learning (AI/ML) technologies has increased the need to support youth in developing AI/ML literacies. However, most work has centered on preparing young people to use these systems, with less attention to how they can participate in designing and evaluating them. This study investigates how engaging young people in the design and auditing of generative language models (GLMs) may foster the development of their understanding of how these systems work from both technical and ethical perspectives. The study takes an in-pieces approach to investigate novices' conceptions of GLMs. Such an approach supports the analysis of how technical and ethical conceptions evolve and relate to each other. I am currently conducting a series of participatory design workshops with sixteen ninth graders (ages 14-15) in which they will (a) build GLMs from a data-driven perspective that glassboxes how data shapes model performance and (b) audit commercial GLMs by repeatedly and systematically querying them to draw inferences about their behaviors. I will analyze participants' interactions to identify ethical and technical conceptions they may exhibit while designing and auditing GLMs. I will also conduct clinical interviews and use microgenetic knowledge analysis and ordered network analysis to investigate how participants' ethical and technical conceptions of GLMs relate to each other and change after the workshop. The study will contribute (a) evidence of how engaging youth in design and auditing activities may support the development of ethical and technical understanding of GLMs and (b) an inventory of novice design and auditing practices that may support youth's technical and ethical understanding of GLMs.
Connecting The Past To The Future: Age-Rotation-Activity Studies From Kepler To Tess
Creators: name: Buzasi, Derek
Publisher: name: Zenodo
Year: 2018

description: Kepler has revolutionized the study of stellar rotational evolution by providing well-sampled, long-duration, high-quality photometric light curves for a wide range of stellar types. The K2 follow-on mission has provided similar data for a stellar sample comparable in size to that observed with Kepler, and drawn from new stellar populations, but for shorter sample periods -- typically about 80 days. TESS data from full-frame images will further extend the population of stars with such light curves by perhaps two orders of magnitude, but for time periods as short as 27 days.

In this work, we resample Kepler light curves using the K2 and TESS observing windows and apply a variety of algorithms to extract rotational signals and estimate the envelope of photometric variability. From that we study what can be learned from high-precision light curves of short duration, and how to compare those results to what we have learned from Kepler. Specifically, we consider how to best compare results between different missions, and begin to address what is the "best" approach to estimating photometric variability and rotational periods from these high-precision light curves. Results are particularly relevant to future studies of the age-rotation-activity relation on the lower main sequence.
description: Supported by NASA LWS NNX16AB76G
description: {"references": ["McQuillan, A., Mazeh, T., & Aigrain, S. (2014). arXiv:1402.5694", "Vanderburg, A. & Johnson, J. A. (2014). arXiv:1408.3853"]}
PBL and mixed-background groups on Master’s programmes
Creators: name: Engen, Mie
name: Fallov, Mia Arp
name: Jensen, Rune Hagel Skaarup
name: Jensen, Julie Borup
name: Ravn, Ole
Publisher: name: Journal of Problem Based Learning in Higher Education
Year: 2018

description: This article presents the main findings of an applied research project, which studied student experiences of the challenges and opportunities of Problem-Based Learning (PBL) in two master programmes (MPs) at Aalborg University (AAU) characterised by diverse student groups, who bring different educational backgrounds, skills and experiences to the table. Research shows that PBL holds a potential for integrating and promoting learning outcomes for diverse student population, but also that heterogeneity can have negative influence on group dynamics and collaboration central in PBL, but how students experience this is under-researched. The investigation shows that diversity in terms of age differences and varieties in educational backgrounds are experienced both as challenges in teaching situations, but also as an opportunity to increase student learning over time. The study concludes with recommendations for practical alterations of the introduction to and conditions for the PBL model.
description: Journal of Problem Based Learning in Higher Education, Early view
Kaufman and Falconer estimates for radial projections and a continuum version of Beck's Theorem
Creators: name: Orponen, Tuomas
name: Shmerkin, Pablo
name: Wang, Hong
Publisher: name: arXiv
Year: 2022
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Combinatorics (math.CO)
subject: Metric Geometry (math.MG)
subject: FOS: Mathematics
subject: 27A80, 28A78

description: We provide several new answers on the question: how do radial projections distort the dimension of planar sets? Let $X,Y \subset \mathbb{R}^{2}$ be non-empty Borel sets. If $X$ is not contained on any line, we prove that \[ \sup_{x \in X} \dim_{\mathrm{H}} π_{x}(Y) \geq \min\{\dim_{\mathrm{H}} X,\dim_{\mathrm{H}} Y,1\}. \] If $\dim_{\mathrm{H}} Y > 1$, we have the following improved lower bound: \[ \sup_{x \in X} \dim_{\mathrm{H}} π_{x}(Y \, \setminus \, \{x\}) \geq \min\{\dim_{\mathrm{H}} X + \dim_{\mathrm{H}} Y - 1,1\}. \] Our results solve conjectures of Lund-Thang-Huong, Liu, and the first author. Another corollary is the following continuum version of Beck's theorem in combinatorial geometry: if $X \subset \mathbb{R}^{2}$ is a Borel set with the property that $\dim_{\mathrm{H}} (X \, \setminus \, \ell) = \dim_{\mathrm{H}} X$ for all lines $\ell \subset \mathbb{R}^{2}$, then the line set spanned by $X$ has Hausdorff dimension at least $\min\{2\dim_{\mathrm{H}} X,2\}$.
 While the results above concern $\mathbb{R}^{2}$, we also derive some counterparts in $\mathbb{R}^{d}$ by means of integralgeometric considerations. The proofs are based on an $ε$-improvement in the Furstenberg set problem, due to the two first authors, a bootstrapping scheme introduced by the second and third author, and a new planar incidence estimate due to Fu and Ren.
description: 31 pages. This paper supersedes arXiv:2205.13890
2 Briefkopien an [Johannes Faesi, Barbara Scheuchzer-Faesi]
Creators: name: Scheuchzer, Johann Jacob
Publisher: name: [s.n.]
Year: 1692

description: von J[ohann] J[akob] Scheuchzer
description: Faesi, Johannes: Ca. 1626-1705, Lehrer am Carolinum, stv. Rektor u. Kantor am Grossmünster; Scheuchzer-Faesi, Barbara, ?-1734
description: Scheuchzer unterschreibt mit "Nepos u. Sohn"
Pemetaan Teater Di Sumatera Barat (Pencatatan Awal Dan Dialektika Tubuh Aktor)
Creators: name: Saaduddin, Saaduddin
Publisher: name: Zenodo
Year: 2017
Subjects: Teater Sumatera Barat

description: Kehadiran teater modern di Sumatera Barat, telah dimulai perkembangannya di pusat kota Padang oleh Nazif Basir, hal ini sejalan dengan pemikiran bahwa teater modern di Indonesia adalah produk orang-orang kota, diciptakan oleh penduduk kota dan untuk penduduk kota pula. Hal ini memperlihatkan bahwa bentuk kesenian teater modern telah berupaya mengenalkan dirinya di tengah-tengah masyarakat Sumatera Barat.

Memasuki dekade 1990-an, di kota Padang tumbuhlah suatu gerakan penciptaan teater yang berangkat dari kerja ekperimen terhadap elemen pendukung sebuah pertunjukan, seperti pada tubuh aktor, naskah maupun artistik sebagai pilihan ekpresi. Pada tahun 1989, Yusril menjadikan tubuh sebagai sarana ekpresi pemanggungan teater modern di Sumatera Barat, dengan melakukan ekplorasi terhadap tubuh para aktor, yang  kemudian  terus berlanjut hingga tahun 2000-an

Memasuki tahun 2000-an, penyajian teater seperti ini terus bermunculan. Pertunjukan yang dihasilkan berupaya menemukan caranya tersendiri, dengan melakukan pengolahan-pengolahan tubuh para aktor. Kelompok yang menyajikan pertunjukan tersebut; Kolaboratorium Teater Muda, Ranah Teater Padang, Komunitas Seni Hitam Putih, KSST Noktah, Teater Sakata, Teater Katarsis dan LPPT Tambologi.
No-masking theorem for observables
Creators: name: Bhowmick, Swapnil
name: Srivastav, Abhay
name: Pati, Arun Kumar
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The no-masking theorem for quantum information proves that it is impossible to encode an arbitrary input state into a larger bipartite entangled state such that the full information is stored in the correlation but the individual subsystems have no information about the input state. Here, we ask the question: Is it possible to mask an observable such that the information about the observable is available in the joint system, but individual subsystems reveal nothing about the imprints of the observable? This generalizes the notion of masking to observables. We show that a universal unitary that can mask an arbitrary observable in any dimension does not exist. For a qubit system, we show that the masking operation for a given observable is locally unitarily connected to the SWAP operation. This suggests a conservation law for information content of observables that goes beyond the conservation laws under symmetry operations. Furthermore, we prove that the unconditional no-bit commitment result follows from the no-masking theorem for observables. Our results can have important applications in quantum information and quantum communication where we encode information not in states but in observables.
description: 7 pages, No figures, Comments are welcome
title: Naturwissenschaften historisch verstehen
Creators: name: Anzlin, Jennifer
Year: 2011

description: Die Naturwissenschaften und all ihre Errungenschaften haben eine große Bedeutung für unser modernes Leben. Unsere hochtechnisierte Gesellschaft verlangt nach BürgerInnen, die autonom und kritisch sind, die eigene Meinungen haben und reflektieren. Damit zukünftige Erwachsene mit neuen Erkenntnissen und Erfindungen umgehen oder diese kritisch bewerten können, müssen sie über eine naturwissenschaftliche Grundbildung verfügen. Naturwissenschaftlicher Unterricht hat die Aufgabe, den SchülerInnen die Entwicklung eines angemessenen Verständnisses von Naturwissenschaften und Technik zu ermöglichen. Dies gelingt durch die Thematisierung und die aktive Auseinandersetzung mit der Natur der Naturwissenschaften (engl. „Nature of Science“). Ein Weg die Natur der Naturwissenschaften in den Unterricht zu integrieren, führt über die Wissenschaftsgeschichte. Mit deren Hilfe den SchülerInnen verdeutlicht wird, was Naturwissenschaften sind, wie sie funktionieren und wie sie das Leben bzw. die Gesellschaft beeinflussen. Heranwachsende erkennen diese als eine Aktivität des Menschen, wodurch naturwissenschaftliches Wissen als weniger abstrakt und begreifbarer erscheint. Die Bedeutung der Wissenschaftsgeschichte für die österreichischen ChemielehrerInnen wurde mittels einer Online-Befragung erhoben. Die befragten Lehrkräfte empfinden die Geschichte der Chemie als durchaus wichtig, sie erkennen auch ihre Bedeutung hinsichtlich möglicher Wirkungen auf den Unterricht. Anschließend geht die vorliegende Arbeit auf mögliche Unterrichtskonzepte ein, die die Aspekte der Natur der Naturwissenschaften mittels der Wissenschaftsgeschichte in den Unterricht integrieren. Hierzu werden auch zwei konkrete Beispiele der interaktiven historischen Vignette zum Thema „Kernspaltung, eine gewagte Idee“ und „Penicillin, ein glücklicher Zufall“ angeführt.
On the complexity of symmetric vs. functional PCSPs
Creators: name: Nakajima, Tamio-Vesa
name: Živný, Stanislav
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computational Complexity (cs.CC)
subject: Discrete Mathematics (cs.DM)
subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: The complexity of the promise constraint satisfaction problem $\operatorname{PCSP}(\mathbf{A},\mathbf{B})$ is largely unknown, even for symmetric $\mathbf{A}$ and $\mathbf{B}$, except for the case when $\mathbf{A}$ and $\mathbf{B}$ are Boolean.
 First, we establish a dichotomy for $\operatorname{PCSP}(\mathbf{A},\mathbf{B})$ where $\mathbf{A}, \mathbf{B}$ are symmetric, $\mathbf{B}$ is functional (i.e. any $r-1$ elements of an $r$-ary tuple uniquely determines the last one), and $(\mathbf{A},\mathbf{B})$ satisfies technical conditions we introduce called dependency and additivity. This result implies a dichotomy for $\operatorname{PCSP}(\mathbf{A},\mathbf{B})$ with $\mathbf{A},\mathbf{B}$ symmetric and $\mathbf{B}$ functional if (i) $\mathbf{A}$ is Boolean, or (ii) $\mathbf{A}$ is a hypergraph of a small uniformity, or (iii) $\mathbf{A}$ has a relation $R^{\mathbf{A}}$ of arity at least 3 such that the hypergraph diameter of $(A, R^{\mathbf{A}})$ is at most 1.
 Second, we show that for $\operatorname{PCSP}(\mathbf{A},\mathbf{B})$, where $\mathbf{A}$ and $\mathbf{B}$ contain a single relation, $\mathbf{A}$ satisfies a technical condition called balancedness, and $\mathbf{B}$ is arbitrary, the combined basic linear programming relaxation (BLP) and the affine integer programming relaxation (AIP) is no more powerful than the (in general strictly weaker) AIP relaxation. Balanced $\mathbf{A}$ include symmetric $\mathbf{A}$ or, more generally, $\mathbf{A}$ preserved by a transitive permutation group.
description: Full version (with stronger results) of a LICS'23 paper
Coherence limits in lattice atom interferometry at the one-minute scale
Creators: name: Panda, Cristian D.
name: Tao, Matthew
name: Egelhoff, James
name: Ceja, Miguel
name: Xu, Victoria
name: Müller, Holger
Publisher: name: arXiv
Year: 2022
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In quantum metrology and quantum simulation, a coherent non-classical state must be manipulated before unwanted interactions with the environment lead to decoherence. In atom interferometry, the non-classical state is a spatial superposition, where each atom coexists in multiple locations as a collection of phase-coherent partial wavepackets. These states enable precise measurements in fundamental physics and inertial sensing. However, atom interferometers usually use atomic fountains, where the available interrogation time is limited to around 3 seconds for a 10 m fountain. Here, we realise an atom interferometer with a spatial superposition state that is maintained for as long as 70 seconds. We analyse the theoretical and experimental limits to coherence arising from collective dephasing of the atomic ensemble. This reveals that the decoherence rate slows down markedly at hold times that exceed tens of seconds. These gains in coherence may enable gravimetry measurements, searches for fifth forces or fundamental probes into the non-classical nature of gravity.
description: 28 pages, 10 figures
KGMEL: Knowledge Graph-Enhanced Multimodal Entity Linking
Creators: name: Kim, Juyeon
name: Lee, Geon
name: Kim, Taeuk
name: Shin, Kijung
Publisher: name: arXiv
Year: 2025
Subjects: subject: Information Retrieval (cs.IR)
subject: Artificial Intelligence (cs.AI)
subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Entity linking (EL) aligns textual mentions with their corresponding entities in a knowledge base, facilitating various applications such as semantic search and question answering. Recent advances in multimodal entity linking (MEL) have shown that combining text and images can reduce ambiguity and improve alignment accuracy. However, most existing MEL methods overlook the rich structural information available in the form of knowledge-graph (KG) triples. In this paper, we propose KGMEL, a novel framework that leverages KG triples to enhance MEL. Specifically, it operates in three stages: (1) Generation: Produces high-quality triples for each mention by employing vision-language models based on its text and images. (2) Retrieval: Learns joint mention-entity representations, via contrastive learning, that integrate text, images, and (generated or KG) triples to retrieve candidate entities for each mention. (3) Reranking: Refines the KG triples of the candidate entities and employs large language models to identify the best-matching entity for the mention. Extensive experiments on benchmark datasets demonstrate that KGMEL outperforms existing methods. Our code and datasets are available at: https://github.com/juyeonnn/KGMEL.
description: SIGIR 2025 (Short)