cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Equidistribution for nonuniformly expanding dynamical systems, and application to the almost sure invariance principle
Creators: name: Korepanov, Alexey
Publisher: name: arXiv
Year: 2017
Subjects: subject: Dynamical Systems (math.DS)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 37D25

description: Let $T \colon M \to M$ be a nonuniformly expanding dynamical system, such as logistic or intermittent map. Let $v \colon M \to \mathbb{R}^d$ be an observable and $v_n = \sum_{k=0}^{n-1} v \circ T^k$ denote the Birkhoff sums. Given a probability measure $μ$ on $M$, we consider $v_n$ as a discrete time random process on the probability space $(M, μ)$. In smooth ergodic theory there are various natural choices of $μ$, such as the Lebesgue measure, or the absolutely continuous $T$-invariant measure. They give rise to different random processes. We investigate relation between such processes. We show that in a large class of measures, it is possible to couple (redefine on a new probability space) every two processes so that they are almost surely close to each other, with explicit estimates of "closeness". The purpose of this work is to close a gap in the proof of the almost sure invariance principle for nonuniformly hyperbolic transformations by Melbourne and Nicol.
Large deformations of the Tracy-Widom distribution I. Non-oscillatory asymptotics
Creators: name: Bothner, Thomas
name: Buckingham, Robert
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mathematical Physics (math-ph)
subject: Probability (math.PR)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 60B20 (Primary), 45M05, 82B26, 33C10, 33C15 (Secondary)

description: We analyze the left-tail asymptotics of deformed Tracy-Widom distribution functions describing the fluctuations of the largest eigenvalue in invariant random matrix ensembles after removing each soft edge eigenvalue independently with probability $1-γ\in[0,1]$. As $γ$ varies, a transition from Tracy-Widom statistics ($γ=1$) to classical Weibull statistics ($γ=0$) was observed in the physics literature by Bohigas, de Carvalho, and Pato \cite{BohigasCP:2009}. We provide a description of this transition by rigorously computing the leading-order left-tail asymptotics of the thinned GOE, GUE and GSE Tracy-Widom distributions. In this paper, we obtain the asymptotic behavior in the non-oscillatory region with $γ\in[0,1)$ fixed (for the GOE, GUE, and GSE distributions) and $γ\uparrow 1$ at a controlled rate (for the GUE distribution). This is the first step in an ongoing program to completely describe the transition between Tracy-Widom and Weibull statistics. As a corollary to our results, we obtain a new total-integral formula involving the Ablowitz-Segur solution to the second Painlevé equation.
description: 31 pages, 7 figures
A cool, magnetic white dwarf accreting planetary debris
Creators: name: Vennes, Stephane
name: Kawka, Adela
name: Klein, Beth L.
name: Zuckerman, B.
name: Weinberger, Alycia J.
name: Melis, Carl
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present an analysis of spectroscopic data of the cool, highly magnetic and polluted white dwarf 2MASS J0916-4215. The atmosphere of the white dwarf is dominated by hydrogen, but numerous spectral lines of magnesium, calcium, titanium, chromium, iron, strontium, along with Li I, Na I, Al I, and K I lines, are found in the incomplete Paschen-Back regime, most visibly, in the case of Ca II lines. Extensive new calculations of the Paschen-Back effect in several spectral lines are presented and results of the calculations are tabulated for the Ca II H&K doublet. The abundance pattern shows a large lithium and strontium excess, which may be viewed as a signature of planetary debris akin to Earth's continental crust accreted onto the star, although the scarcity of silicon indicates possible dilution in bulk Earth material. Accurate abundance measurements proved sensitive to the value of the broadening parameter due to collisions with neutral hydrogen (Gamma_HI), particularly in saturated lines such as the resonance lines of Ca I and Ca II. We found that Gamma_HI if formulated with values from the literature could be overestimated by a factor of 10 in most resonance lines.
description: Accepted for publication in MNRAS
Potentilla crantzii
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: P. Crantzii X thuringiaca Cat. 94und 425. Zu streichen.
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Radiative corrections of heavy scalar decays to gauge bosons in the singlet extension of the Standard Model
Creators: name: Ria, Gabriele
name: Meloni, Davide
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Assuming the existence of a new real scalar singlet $s^0$ coupled to the Standard Model via a scalar quartic portal interaction, we compute the radiative corrections to the decay rates of the heavy scalar mass eigenstate to a couple of gauge bosons $ZZ$ and $W^+W^-(γ)$, showing that they can give a contribution as large as ${\cal{O}}$(5\%) and ${\cal{O}}$(7\%), respectively. We also explicitly analyze in detail their dependence on the heavy mass $m_S$ and on the scalar mixing angle $α$, finding that, especially in the large-mass region, these depend on the sign of $\sinα$.
description: 23 pages, 7 figures
title: Inland aquatic biodiversity in Antarctica
Creators: name: Hawes, Ian
name: Jungblut, Anne D.
name: Elster, Josef
name: Van de Vijver, Bart
name: Mikucki, Jill
Publisher: name: Antarctic Environments Portal
Year: 2019

description: Studies of Antarctic inland waters have been underway for more than a hundred years. Biodiversity is impoverished compared to other climatic zones and, for most groups of organisms, decreases from the Antarctic Peninsula, through the Coastal Oases to Continental deserts. Many groups of organisms have failed to colonise or survive in Antarctica allowing microbes to predominate in many food webs, especially at high latitudes. Modern molecular biology techniques offer promise towards elucidating patterns of biodiversity among poorly understood Antarctic microbial and viral communities. Subglacial aquatic environments may represent the vast majority of Antarctic inland waters, yet remain largely unexplored. The Antarctic aquatic biota includes organisms and species or strains that are unique to all, or parts, of Antarctica.  The greatest threat comes from non-native species, both from outside and from other parts of the continent. Existing protected areas contain inland waters representing most lake types, but geographic coverage is sparse and unrepresentative overall, in terms of current bioregion designations.
description: Conservation
Antarctic bioregions
Antarctic inland waters
Aquatic biodiversity
Root canal pre-treatment and adhesive system affect bond strength durability of fiber posts ex vivo
Creators: name: Kosan, Esra
name: Prates-Soares, Ana
name: Blunck, Uwe
name: Neumann, Konrad
name: Bitter, Kerstin
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2021
Subjects: subject: Self-etch adhesives
subject: Root canal dentin
subject: Ethanol pre-treatment
subject: Push-out bond strength
subject: Thermocycling
subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit::610 Medizin und Gesundheit

description: Objectives: To investigate the effect of different pre-treatments on the long-term bond strength of fiberglass posts luted either with dual-curing self-etch adhesives and core build-up composites or with a self-adhesive resin (SAR) cement. Materials and methods: In total, 180 human root-filled teeth received post-space preparations and three different dentin pre-treatments (PTs): PT1, ethanol (99%); PT2, ethanol-tertiary-butanol-water-solution (AH Plus Cleaner, Dentsply Sirona; York, USA); and PT3, distilled water (control). Five luting systems were used: FU, Futurabond U (Voco; Cuxhaven, Germany); CL, Clearfil DC Bond (Kuraray Noritake; Okayama, Japan); GR, Gradia Core SE Bond (GC Europe NV; Leuven, Belgium); LU, LuxaBond Universal (DMG; Hamburg, Germany); and RX, RelyX Unicem 2 (3M; Minnesota, USA). Roots were cut into six slices (1 mm thick). From each root canal region, three slices were submitted to immediate and three to post-storage push-out testing. The latter were subjected to thermocycling (5–55°C, 6.000 cycles) and stored for six months in saline solution (0.9%, 37°C). Data were analysed using repeated measures ANOVA and chi-square tests (MV±SD). Results: Bond strength was significantly affected by material (p<0.0005), pre-treatment (p=0.016), and storage (p<0.0005; repeated-measures ANOVA). LU (18.8±8.1MPa) revealed significantly higher bond strength than RX (16.08±6.4MPa), GR (15.1±4.6MPa), CL (13.95±5.2MPa), and FU (13.7±6.3MPa). PT1 (16.5±6.9MPa) revealed significantly higher bond strength than PT3 (14.5±5.7MPa). Conclusions: A universal adhesive in self-etch mode combined with a core build-up material revealed higher bond strength than a SAR cement, both interacted positively with Ethanol pre-treatment. Clinical relevance statement: Ethanol (99%) rinsing can be recommended as part of post and core pre-treatment for the investigated luting systems.
About the search for pulsed radiation from the magnetar SGR1935+2154 at the LPA LPI
Creators: name: Brylyakova, E. A.
name: Tyul'bashev, S. A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: J1935+2154 is known as a source of soft gamma radiation. Hyperflares from magnetar were detected at a frequency of 1.25 GHz on the FAST telescope in May 2020. The magnetar enters the survey conducted on LPA radio telescope at 111 MHz. A check of the previously published (Fedorova et al. 2021) pulse from the magnetar SGR1935+2154 was carried out. The data received on the LPA is recorded in parallel in two modes having low and high frequency-time resolution: 6 channels with a channel width of 415 kHz and a time resolution of Δt = 100 ms; 32 channels with a channel width of 78 kHz and a time resolution of Δt = 12.5 ms. The original search was carried out using data with low time-frequency resolution. The search for dispersed signals in the meter wavelength range is difficult, compared with the search in the decimeter range, due to scattering proportional to the fourth power of frequency and dispersion smearing of the pulse in frequency channels proportional to the second power of frequency. In order to collect a broadened pulse signal and obtain the best value of S/N, the search was carried out using an algorithm based on the convolution of multichannel data with a scattered pulse pattern. The shape of the template corresponds to the shape of a scattered pulse with a dispersion measure (DM) of 375 pc/cm3. For repeated verification, the same data was used in which the pulse from the magnetar was detected. An additional check of the published pulse was also carried out using data with a higher frequency-time resolution. Since the dispersion smearing in the frequency channel in the 32-channel data is 5 times less than in the 6-channel data, an increase approximately 2 times in the S/N pulse could be expected. Pulse radiation with S/N>4 having a pulse peak shift depending on DM from SGR1935+2154 was not detected in either 32-channel or 6-channel data.
description: published in Transactions of Institute of Applied Astronomy of Russian Academy of Sciences (IAA RAS), translated by Yandex translator with correction of scientific lexis, 4 pages, 3 figures
title: Persistent organic pollutants in Antarctica
Creators: name: Corsolini, Simonetta
name: Galbán-Malagón, Cristóbal
name: Carmela Montone, Rosalinda
Publisher: name: Antarctic Environments Portal
Year: 2019

description: Persistent organic pollutants (POPs) are carbon-based chemicals of anthropogenic origin that elicit toxic effects in organisms. For this reason, the United Nations Environment Programme implemented the Stockholm Convention on POPs in 2004 to protect human health and the environment. Due to their physical-chemical properties, POPs are readily transported mainly by atmosphere or ocean currents over long distances, including polar regions, where these chemicals are trapped because of the extreme cold climate. Once in the Antarctic region, they bioaccumulate in organisms and can elicit toxic effects. Antarctic and Southern Ocean ecosystems are fragile and have low resilience capacity, thus contamination can have unpredictable consequences. Moreover, global climate change may influence the abiotic drivers of chemical distribution and mobility in Antarctic ecosystems. Thus, a knowledge of concentrations and distributions of contaminants is necessary to understand the risk to Antarctica and for evaluating the overall environmental health and other possible consequences on a global scale.
description: Bioaccumulation
Food webs
Global change
Long range atmospheric transport
Persistant organic pollutants
Counter-ions at single charged wall: Sum rules
Creators: name: Samaj, Ladislav
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: For inhomogeneous classical Coulomb fluids in thermal equilibrium, like the jellium or the two-component Coulomb gas, there exists a variety of exact sum rules which relate the particle one-body and two-body densities. The necessary condition for these sum rules is that the Coulomb fluid possesses good screening properties, i.e. the particle correlation functions or the averaged charge inhomogeneity, say close to a wall, exhibit a short-range (usually exponential) decay. In this work, we study equilibrium statistical mechanics of an electric double layer with counter-ions only, i.e. a globally neutral system of equally charged point-like particles in the vicinity of a plain hard wall carrying a fixed uniform surface charge density of opposite sign. At large distances from the wall, the one-body and two-body counter-ion densities go to zero slowly according to the inverse-power law. In spite of the absence of screening, all known sum rules are shown to hold for two exactly solvable cases of the present system: in the weak-coupling Poisson-Boltzmann limit (in any spatial dimension larger than one) and at a special free-fermion coupling constant in two dimensions. This fact indicates an extended validity of the sum rules and provides a consistency check for reasonable theoretical approaches.
description: 7 pages, 1 figure
title: Nach Einsturzgefahr wieder dauerhaft konserviert: die Wertheimer „Bettlade“. Dokumentation, Voruntersuchung und Maßnahmen am Alabasterkunstwerk
Creators: name: Eger, Frank
name: Wölbert, Otto
Publisher: name: University Library Heidelberg
Year: 2016

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 45, Nr. 2 (2016), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Leptonic Flavor Structure in the Brane Shifted Extra Dimensional Seesaw Mechanism
Creators: name: Becker, Mathias
name: Päs, Heinrich
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss the leptonic flavor structure generated by a brane shifted extra dimensional seesaw model with a single right handed neutrino in the bulk. In contrast to previous works, no unitarity approximation for the $3 \times 3$ submatrix has been employed. This allows to study phenomenological signatures such as lepton flavor violating decays. A strong prediction of the model, assuming CP conservation, are the ratios of flavor violating charged lepton decay and Z decay branching ratios which are correlated with the neutrino mixing angles and the neutrino mass hierarchy. Furthermore, it is possible to obtain branching ratios for $μ\rightarrow e γ$ close to the experimental bounds even with Yukawa couplings of order one.
description: 13 pages plus appendix and references, 4 figures. v2: version accepted by EPJC
Expertensystem zur Bereitstellung von Produktionssytem-Wissen für den Werkzeug- und Formenbau
Creators: name: Ullmann, Georg
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2010
Subjects: subject: Production system
subject: lean production
subject: expert system
subject: knowledge management
subject: data mining
subject: Ganzheitliches Produktionssystem
subject: Expertensystem
subject: Wissensmanagement
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: [no abstract]
The Constrained NMSSM with right-handed neutrinos
Creators: name: Cerdeno, David G.
name: De Romeri, Valentina
name: Martin-Lozano, Victor
name: Olive, Keith A.
name: Seto, Osamu
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this article, we study the renormalization group equations of the Next-to-Minimal Supersymmetric Standard Model, and investigate universality conditions on the soft supersymmetry-breaking parameters at the Grand Unification scale. We demonstrate that the inclusion of right-handed neutrino superfields can have a substantial effect on the running of the soft terms (greatly contributing to driving the singlet Higgs mass- squared parameter negative), which makes it considerably easier to satisfy the conditions for radiative electroweak symmetry-breaking. The new fields also lead to larger values of the Standard Model Higgs mass, thus making it easier to reproduce the measured value. We investigate the phenomenology of this constrained scenario, and focus on two viable benchmark points, which feature a neutral lightest supersymmetric particle (either the lightest neutralino or the right-handed sneutrino). We show that all bounds from colliders and low-energy observables can be fulfilled in wide areas of the parameter space. However, the relic density in these regions is generally too high requiring some form of late entropy production to dilute the density of the lightest supersymmetric particle.
description: 21 pages, 4 figures
Energieeffizienz und Verkehrswert von Wohngebäuden
Creators: name: Wameling, Tim
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2010
Subjects: subject: Energy efficiency
subject: market value
subject: residental properties
subject: Energieeffizienz
subject: Verkehrswert
subject: Wohngebäude
subject: Dewey Decimal Classification::700 | Künste, Bildende Kunst allgemein::720 | Architektur

description: [no abstract]
Probing the unitarity of the renormalizable theory of massive conformal gravity
Creators: name: Faria, F. F.
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The presence of an unstable massive spin-2 ghost state in the renormalizable theory of massive conformal gravity leads to a pair of complex poles appearing in the first sheet of the energy plane. Here we show that the positions of these poles are gauge dependent, which makes the theory unitary.
description: 8 pages; v2: 9 pages; v3: 9 pages, e-mail and typos corrected in Eq. (39), match the published version
The spatial distribution and interregional dynamics of vegetable production in Thailand
Creators: name: Hardeweg, Bernd
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2008
Subjects: subject: Thailand
subject: vegetable production
subject: agricultural sector model
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::330 | Wirtschaft

description: [no abstract]
Heavy-Quark Hybrid Mass Splittings: Hyperfine and "Ultrafine"
Creators: name: Lebed, Richard F.
name: Swanson, Eric S.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: It is argued that the heavy-quark limit of QCD requires a certain combination of hyperfine mass splittings in heavy-quark hybrid-meson multiplets to be unusually small. This observation will assist in the exploration of the heavy-quark hybrid spectrum at facilities such as PANDA. Alternatively, a large measured value for this mass splitting indicates that at least one member of the multiplet must contain significant light-quark degrees of freedom.
description: Version to appear in Few-Body Systems. Substantial modifications from previous version, including extensive additional references and an expanded discussion of relevant operators. 7 pages
Three-dimensional numerical modelling of static and transient Coulomb stress changes on intra-continental dip-slip faults
Creators: name: Bagge, Meike
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2017
Subjects: subject: Interaction of earthquakes
subject: stress transfer
subject: finite-element-models
subject: Interaktion von Erdbeben
subject: Spannungsübertragung
subject: Finite-Elemente-Modelle
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: [no abstract]
On the Control Theorem for Fine Selmer Groups and the Growth of Fine Tate-Shafarevich Groups in $\mathbb{Z}_p$-Extensions
Creators: name: Lim, Meng Fai
Publisher: name: Deutsche Mathematiker-Vereinigung
Year: 2020

description: Let $A$ be an abelian variety defined over a number field $F$. We prove a control theorem for the fine Selmer group of the abelian variety $A$ which essentially says that the kernel and cokernel of the natural restriction maps in an arbitrarily given $\mathbb{Z}_p$-extension $F_\infty/F$ are finite and bounded. We emphasise that our result does not have any constraints on the reduction of $A$ and the ramification of $F_\infty/F$. As a first consequence of the control theorem, we show that the fine Tate-Shafarevich group over an arbitrary $\mathbb{Z}_p$-extension has trivial $\Lambda$-corank. We then derive an asymptotic growth formula for the $p$-torsion subgroup of the dual fine Selmer group in a $\mathbb{Z}_p$-extension. However, as the fine Mordell-Weil group need not be $p$-divisible in general, the fine Tate-Shafarevich group need not agree with the $p$-torsion of the dual fine Selmer group, and so the asymptotic growth formula for the dual fine Selmer groups do not carry over to the fine Tate-Shafarevich groups. Nevertheless, we do provide certain sufficient conditions, where one can obtain a precise asymptotic formula.
description: DOCUMENTA MATHEMATICA, Vol 25 (2020), p. 2445-2471
Umpolung von Allyl-Palladium-Komplexen und Anwendung in der Synthese von Naturstoff-Fragmenten
Creators: name: Vogt, Monika
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2010
Subjects: subject: Palladiumkatalyse
subject: Umpolung
subject: Geldanamycin
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: [no abstract]
Additional lottery model information, statistical model results and parameter space from Scaling of biological rates with body size as a backbone in the assembly of metacommunity biodiversity
Creators: name: Ortiz, Esteban
name: Borthagaray, Ana I.
name: Ramos-Jiliberto, Rodrigo
name: Arim, Matías
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: Ecology
subject: FOS: Biological sciences

description: This file contains detailed information about: (i) how the lottery model works; (ii) results of the statistical models presented; (iii) lottery model results along the complete set of parameter values; (iv) convergence analysis of the lottery-based metacommunity model; (v) information regarding empirical scaling exponents published elsewhere
Unions of 3-punctured spheres in hyperbolic 3-manifolds
Creators: name: Yoshida, Ken'ichi
Publisher: name: arXiv
Year: 2017
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M50, 57N10

description: We classify the topological types for the unions of the totally geodesic 3-punctured spheres in orientable hyperbolic 3-manifolds. General types of the unions appear in various hyperbolic 3-manifolds. Each of the special types of the unions appears only in a single hyperbolic 3-manifold or Dehn fillings of a single hyperbolic 3-manifold. Furthermore, we investigate bounds of the moduli of adjacent cusps for the union of linearly placed 3-punctured spheres.
description: 40 pages, 32 figures. v2: Section 5 extended, references added, v3: Theorem 1.3 added, which concerns infinitely many 3-punctured spheres, v4: reference added; to appear in Communications in Analysis and Geometry
K-orbit closures and Barbasch-Evens-Magyar varieties
Creators: name: Escobar, Laura
name: Wyser, Benjamin J.
name: Yong, Alexander
Publisher: name: arXiv
Year: 2017
Subjects: subject: Algebraic Geometry (math.AG)
subject: Combinatorics (math.CO)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: We define the Barbasch-Evens-Magyar varieties. We show they are isomorphic to the smooth varieties defined in [D.~Barbasch-S.~Evens '94] that map generically finitely to symmetric orbit closures, thereby giving resolutions of singularities in certain cases. Our definition parallels [P.~Magyar '98]'s construction of the Bott-Samelson varieties [H.~C.~Hansen '73, M.~Demazure '74]. From this alternative viewpoint, one deduces a graphical description in type $A$, stratification into closed subvarieties of the same kind, and determination of the torus-fixed points. Moreover, we explain how these manifolds inherit a natural symplectic structure with Hamiltonian torus action. We then express the moment polytope in terms of the moment polytope of a Bott-Samelson variety.
description: 22 pages, 5 figures. Accepted for publication at Pacific J. Math
title: W. Vermeulen, Een romeinsch Grafveld op den Hunnerberg te Nymegen
Creators: name: Lehner, Hans
Publisher: name: University Library Heidelberg
Year: 2016

description: Rezension zu: W. Vermeulen, Een romeinsch Grafveld op den Hunnerberg te Nymegen. Bouwsteenen voor een Geschiedenis van Nymegen II H. 1. Paris, Amsterdam 1932. 8°, XIV u. 274 S. u. 21 Tafeln.
Constrained Factor Models for High-Dimensional Matrix-Variate Time Series
Creators: name: Chen, Elynn Y.
name: Tsay, Ruey S.
name: Chen, Rong
Publisher: name: arXiv
Year: 2017
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: High-dimensional matrix-variate time series data are becoming widely available in many scientific fields, such as economics, biology, and meteorology. To achieve significant dimension reduction while preserving the intrinsic matrix structure and temporal dynamics in such data, Wang et al. (2017) proposed a matrix factor model that is shown to provide effective analysis. In this paper, we establish a general framework for incorporating domain or prior knowledge in the matrix factor model through linear constraints. The proposed framework is shown to be useful in achieving parsimonious parameterization, facilitating interpretation of the latent matrix factor, and identifying specific factors of interest. Fully utilizing the prior-knowledge-induced constraints results in more efficient and accurate modeling, inference, dimension reduction as well as a clear and better interpretation of the results. In this paper, constrained, multi-term, and partially constrained factor models for matrix-variate time series are developed, with efficient estimation procedures and their asymptotic properties. We show that the convergence rates of the constrained factor loading matrices are much faster than those of the conventional matrix factor analysis under many situations. Simulation studies are carried out to demonstrate the finite-sample performance of the proposed method and its associated asymptotic properties. We illustrate the proposed model with three applications, where the constrained matrix-factor models outperform their unconstrained counterparts in the power of variance explanation under the out-of-sample 10-fold cross-validation setting.
title: Christian Mehlis, Altdeutschland = ‘Germania magna’ nach der ‘Geographia’ des Claudius Ptolemaeus und der ‘Germania’ des Cornelius Tacitus
Creators: name: Kubitschek, Wilhelm
Publisher: name: University Library Heidelberg
Year: 2016

description: Rezension zu: Christian Mehlis, Altdeutschland = ‘Germania magna’ nach der ‘Geographia’ des Claudius Ptolemaeus und der ‘Germania’ des Cornelius Tacitus, S.A. aus dem Archiv für Anthropologie (Braunschweig, Verlag Friedr. Vieweg und Sohn) Bd. 32, 256—275 und Karte: Alt Deutschland nach der Geographia des Ptolemaeus.
Generalized Long-Moody functors
Creators: name: Soulié, Arthur
Publisher: name: arXiv
Year: 2017
Subjects: subject: Algebraic Topology (math.AT)
subject: Category Theory (math.CT)
subject: FOS: Mathematics

description: In this paper, we generalize the principle of the Long-Moody construction for representations of braid groups to other groups, such as mapping class groups of surfaces. Namely, we introduce endofunctors over a functor category that encodes representations of a family of groups. They are called Long-Moody functors and provide new representations. In this context, notions of polynomial functors are defined and play an important role in the study of homological stability. We prove that, under additional assumptions, a Long-Moody functor increases the very strong and weak polynomial degrees of functors by one.
description: Algebraic & Geometric Topology, In press
Nucleon Resonance Structure from Exclusive Meson Electroproduction with CLAS
Creators: name: Mokeev, Victor I.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Studies of the nucleon resonance electroexcitation amplitudes in a wide range of photon virtualities offer unique information on many facets of strong QCD behind the generation of all prominent excited nucleon states. Advances in the evaluation of resonance electroexcitation amplitudes from the data measured with the CLAS detector and the future extension of these studies with the CLAS12 detector at Jefferson Lab are presented. For the first time, analyses of $π^0p$, $π^+n$, $ηp$, and $π^+π^-p$ electroproduction off proton channels have provided electroexcitation amplitudes of most resonances in the mass range up to 1.8 GeV and at photon virtualities $Q^2 < 5$~GeV$^2$.Studies of the resonance electroexcitation amplitudes revealed the $N^*$ structure as a complex interplay between the inner core of three dressed quarks and the external meson-baryon cloud. The successful description of the $Δ(1232)3/2^+$ and $N(1440)1/2^+$ electrocouplings achieved within the Dyson-Schwinger Equation approach under a traceable connection to the QCD Lagrangian and supported by the novel light front quark model demonstrated the relevance of dressed quarks with dynamically generated masses as an active structural component in baryons. Future experiments with the CLAS12 detector will offer insight into the structure of all prominent resonances at the highest photon virtualities, $Q^2 < 12$~GeV$^2$, ever achieved in exclusive reactions, thus addressing the most challenging problems of the Standard Model on the nature of hadron mass, quark-gluon confinement, and the emergence of nucleon resonance structures from QCD. A search for new states of hadronic matter, the so-called hybrid-baryons with glue as a structural component, will complete the long term efforts on the resonance spectrum exploration.
description: 16 pages, 5 figures
$ μ-τ$ Reflection Symmetry Embedded in Minimal Seesaw
Creators: name: Nath, Newton
name: Xing, Zhi-zhong
name: Zhang, Jue
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We embed $μ-τ$ reflection symmetry into the minimal seesaw formalism, where two right-handed neutrinos are added to the Standard Model of particle physics. Assuming that both the left- and right-handed neutrino fields transform under $μ-τ$ reflection symmetry, we obtain the required forms of the neutrino Dirac mass matrix and the Majorana mass matrix for the right-handed neutrinos. To investigate the neutrino phenomenology at low energies, we first consider the breaking of $μ-τ$ reflection symmetry due to the renormalization group running, and then systematically study various breaking schemes by introducing explicit breaking terms at high energies.
description: 35 pages, 7 figures, 4 tables, Version accepted for publication in Eur. Phys. J. C
Detailing secondary frontal bore of internal tides breaking above deep-ocean topography
Creators: name: van Haren, Hans
Publisher: name: arXiv
Year: 2023
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: Above steep deep-sea topography internal tidal waves may break vigorously. The associated turbulent mixing is important for resuspending matter, bringing it tens of meters away from the seafloor for redistribution. While intense turbulence-generation occurs around a primary (frontal) bore during each transition from warming downslope to cooling upslope phase of the internal (tidal) carrier wave, a secondary bore can appear about half a wave-period later before the turn to the warming phase. As will be demonstrated from a 100-day mooring array consisting of 200 high-resolution temperature sensors between h = 6-404 m above a steep slope of a large North-Atlantic seamount and a low-resolution acoustic Doppler current profiler sampling between 50 and 450 m, secondary bores show about the same turbulence intensity as around primary bores but they generally show larger overturns that always reach the seafloor. The secondary bores associate with a sudden drop in along-isobath flow speed, a (renewed) increase in upslope flow of up to |0.2| m s-1, and with first-harmonic quarter-diurnal periodicity which provides a spectral peak for turbulence dissipation rate. While each bore is different in appearance, varying from curved like a primary bore to almost straight upward with a ragged bore, secondary bores are in a first approximation forward breaking in contrast with backward breaking primary bores.
description: 26 pages, 9 figures
title: Silvio Ferri, Arte Romana sul Reno
Creators: name: Krüger, Emil
Publisher: name: University Library Heidelberg
Year: 2016

description: Rezension zu: Silvio Ferri, Arte Romana sul Reno (Biblioteca della Rivista „Historia“ del „Popolo d'Italia“, Nr. 2). Mailand 1931. 317 S. 221 Abb.
Footprints of leptoquarks: from $ R_{K^{(*)}} $ to $ K \to πν\barν$
Creators: name: Fajfer, S.
name: Košnik, N.
name: Silva, L. Vale
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Rare $K \to πν\bar ν$ decays, being dominated by short distance contributions within the Standard Model (SM), open a window for New Physics (NP) searches at low energies. The $ K \to πν\barν$ branching ratios are expected to be measured with $ \sim 10\% $ accuracies by NA62/CERN and KOTO/JPARC. The theoretical uncertainties of branching ratios within the SM are well under control. In the $ B $ sector, it is tentative to explain the $ B $-meson anomalies $ R_{D^{(\ast)}} $ and/or $ R_{K^{(\ast)}} $ by effects of physics beyond the SM. Although NP seems to be present in the third fermion generation it might also manifest in the flavor changing neutral current transition $ s \to d $. Together with the anticipated good experimental sensitivities and accurate theoretical predictions for $ K\to πν\bar ν$, this motivates studies of correlated effects of NP in rare $ K\to πν\bar ν$ and $ B \to K^{(*)} μ^+ μ^- $ decays. Here we consider the loop induced effects in $ K \to πν\barν$ in two leptoquark models designed to address lepton-flavor universality violation in the $ R_{K^{(\ast)}} $ anomalies.
title: Alexander Scharff, Die Altertümer der Vor- und Frühzeit Ägyptens
Creators: name: Reinecke, Paul
Publisher: name: University Library Heidelberg
Year: 2016

description: Rezension zu: Alexander Scharff, Die Altertümer der Vor- und Frühzeit Ägyptens. Staatliches Museum zu Berlin, Mitteilungen aus der Ägyptischen Sammlung Bd. 4 und 5, Berlin 1931, 1929, Verlag Karl Curtius. Bd. 4 (1931) 284 S., 92 Abb., 36 Taf. — Bd. 5 (1929) 194 S., 101 Abb., 38 Taf.
From identical S- and P-wave pT/M spectra to maximally distinct polarizations: probing NRQCD with chi states
Creators: name: Faccioli, Pietro
name: Lourenco, Carlos
name: Araujo, Mariana
name: Seixas, Joao
name: Kratschmer, Ilse
name: Knunz, Valentin
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A global analysis of ATLAS and CMS measurements reveals that, at mid-rapidity, the directly-produced $χ_{c1}$, $χ_{c2}$ and J/$ψ$ mesons have differential cross sections of seemingly identical shapes, when presented as a function of the mass-rescaled transverse momentum, $p_{\rm T}/M$. This identity of kinematic behaviours among S- and P-wave quarkonia is certainly not a natural expectation of non-relativistic QCD (NRQCD), where each quarkonium state is supposed to reflect a specific family of elementary production processes, of significantly different $p_{\rm T}$-differential cross sections. Remarkably, accurate kinematic cancellations among the variegated NRQCD terms (colour singlets and octets) of its factorization expansion can lead to a surprisingly good description of the data. This peculiar tuning of the NRQCD mixtures leads to a clear prediction regarding the $χ_{c1}$ and $χ_{c2}$ polarizations, the only observables not yet measured: they should be almost maximally different from one another, and from the J/$ψ$ polarization, a striking exception in the global panorama of quarkonium production. Measurements of the difference between the $χ_{c1}$, $χ_{c2}$ and J/$ψ$ polarizations, complementing the observed identity of momentum dependences, represent a decisive probe of NRQCD.
description: Submitted to European Physical Journal C
Moebius invariant BFKL equation for the adjoint representation in N=4 SUSY
Creators: name: Fadin, V. S.
name: Fiore, R.
name: Lipatov, L. N.
name: Papa, A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: It is shown that in the next-to-leading approximation of N=4 SUSY the BFKL equation for two-gluon composite states in the adjoint representation of the gauge group can be reduced to a form which is invariant under Moebius transformation in the momentum space. The corresponding similarity transformation of its integral kernel is constructed in an explicit way.
description: 14 pages
title: La Suisse et la construction du multilatéralisme, vol. 2. Documents diplomatiques suisses sur l’histoire de la Société des Nations 1918–1946
Creators: name: Zala, Sacha
name: Perrenoud, Marc
Publisher: name: Documents Diplomatiques Suisses (Dodis)
Year: 2019

description: Depuis la seconde moitié du XIXe siècle, la Suisse est une cheville ouvrière de la construction du multilatéralisme, ainsi qu’en témoigne la création des premières organisations internationales à Berne et, par la suite, à Genève. Après la Première Guerre mondiale, les faiseurs de paix consacrent l’essor de l’ordre international du XIXe siècle en fondant une «Société des Nations», dont Genève deviendra le siège. La Suisse joue de ce fait un rôle prépondérant, favorisée par sa neutralité, qui n’est toutefois pas sans également causer des problèmes à la Société des Nations. C’est notamment le cas en 1938, lorsque la Suisse se soustrait à ses obligations de membre en ne participant pas aux sanctions économiques contre l’Italie, qui vient d’envahir l’Éthiopie, et se construit une neutralité «intégrale».
Le volume présente cinquante documents-clés sur le rôle de la Suisse dans l’établissement du multilatéralisme dans et à travers la Société des Nations entre 1918 et 1946. Cette documentation est complétée par de nombreux autres documents et ressources numériques disponibles sur la base de données en ligne Dodis. Ainsi, ce volume sert de boussole pour s’orienter au milieu des nombreuses informations contenues dans la base de données.
description: Quaderni di Dodis 14
Lateral control for autonomous vehicles: A comparative evaluation
Creators: name: Artuñedo, Antonio
name: Moreno-Gonzalez, Marcos
name: Villagra, Jorge
Publisher: name: arXiv
Year: 2023
Subjects: subject: Systems and Control (eess.SY)
subject: Robotics (cs.RO)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: The selection of an appropriate control strategy is essential for ensuring safe operation in autonomous driving. While numerous control strategies have been developed for specific driving scenarios, a comprehensive comparative assessment of their performance using the same tuning methodology is lacking in the literature. This paper addresses this gap by presenting a systematic evaluation of state-of-the-art model-free and model-based control strategies. The objective is to evaluate and contrast the performance of these controllers across a wide range of driving scenarios, reflecting the diverse needs of autonomous vehicles. To facilitate the comparative analysis, a comprehensive set of performance metrics is selected, encompassing accuracy, robustness, and comfort. The contributions of this research include the design of a systematic tuning methodology, the use of two novel metrics for stability and comfort comparisons and the evaluation through extensive simulations and real tests in an experimental instrumented vehicle over a wide range of trajectories.
description: Video showcasing a real-world test of a model-free lateral controller in an automated vehicle: https://youtu.be/JtLfZzEdGC8
Dynamically Expandable Graph Convolution for Streaming Recommendation
Creators: name: He, Bowei
name: He, Xu
name: Zhang, Yingxue
name: Tang, Ruiming
name: Ma, Chen
Publisher: name: arXiv
Year: 2023
Subjects: subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: Personalized recommender systems have been widely studied and deployed to reduce information overload and satisfy users' diverse needs. However, conventional recommendation models solely conduct a one-time training-test fashion and can hardly adapt to evolving demands, considering user preference shifts and ever-increasing users and items in the real world. To tackle such challenges, the streaming recommendation is proposed and has attracted great attention recently. Among these, continual graph learning is widely regarded as a promising approach for the streaming recommendation by academia and industry. However, existing methods either rely on the historical data replay which is often not practical under increasingly strict data regulations, or can seldom solve the \textit{over-stability} issue. To overcome these difficulties, we propose a novel \textbf{D}ynamically \textbf{E}xpandable \textbf{G}raph \textbf{C}onvolution (DEGC) algorithm from a \textit{model isolation} perspective for the streaming recommendation which is orthogonal to previous methods. Based on the motivation of disentangling outdated short-term preferences from useful long-term preferences, we design a sequence of operations including graph convolution pruning, refining, and expanding to only preserve beneficial long-term preference-related parameters and extract fresh short-term preferences. Moreover, we model the temporal user preference, which is utilized as user embedding initialization, for better capturing the individual-level preference shifts. Extensive experiments on the three most representative GCN-based recommendation models and four industrial datasets demonstrate the effectiveness and robustness of our method.
description: 11 pages, 6 figures, published on The Web Conference 2023 (WWW 2023)
Training Online Social Work Educators: An Award-winning Institute for Virtual Faculty -- #APM2020
Creators: name: Baez, Johanna C.
name: Marquart, Matthea S.
name: Chung, Rebecca Yae-Eun
Publisher: name: Columbia University
Year: 2020
Subjects: Social work education
Distance education
Web-based instruction
Universities and colleges--Faculty--Training of

description: Columbia University School of Social Work's five-week Institute on Pedagogy and Technology for Online Courses prepares future instructors to become excellent educators with our Online Campus, which offers a fully online MSW degree. As of November 2020, 331 participants from 35 US states have passed in the first six cohorts, and they have gone on to lead about 125 online courses each year. The Institute includes weekly two-hour live virtual class sessions and about three hours of homework each week in a learning management system, and now offers CEUs. This session will share the details of this institute, and its social justice approach to online education.
Carex frigida
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: P. frigida X grandiflora Cat. 93. Nach Th. Wolf Lit. cit., S. 530, zweifelhafter Bastard,
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
The shift map on Floer trajectory spaces
Creators: name: Frauenfelder, Urs
name: Weber, Joa
Publisher: name: arXiv
Year: 2018
Subjects: subject: Symplectic Geometry (math.SG)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 57R58 Floer homology, 46B70 Interpolation between normed linear spaces, 58B99 Infinite-dimensional manifolds

description: In this article we give a uniform proof why the shift map on Floer homology trajectory spaces is scale smooth. This proof works for various Floer homologies, periodic, Lagrangian, Hyperkähler, elliptic or parabolic, and uses Hilbert space valued Sobolev theory.
description: 32 pages, 3 figures
title: M. Mandić, Führer durch die vorgeschichtliche Abteilung des Landesmuseums
Creators: name: Reinecke, Paul
Publisher: name: University Library Heidelberg
Year: 2016

description: Rezension zu: Dr. M. Mandić, Führer durch die vorgeschichtliche Abteilung des Landesmuseums. Sarajevo 1931, Selbstverlag des Verfassers, 36 S. u. 10 Tafeln.
title: Das Grabmal des Grafen Ludwig von Löwenstein-Wertheim und seiner Frau Anna in der Stiftskirche zu Wertheim. Die kultur- und kunsthistorische Bedeutung des Grabmals
Creators: name: Breuer, Judith
Publisher: name: University Library Heidelberg
Year: 2016

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 45, Nr. 2 (2016), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4