cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Long Duration X-Ray Flash and X-Ray Rich Gamma Ray Burst from Low Mass Population III Star
Creators: name: Nakauchi, Daisuke
name: Suwa, Yudai
name: Sakamoto, Takanori
name: Kashiyama, Kazumi
name: Nakamura, Takashi
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Recent numerical simulations suggest that Population III (Pop III) stars were born with masses not larger than $\sim 100 M_{\odot}$ but typically $\sim 40M_{\odot}$. By self-consistently considering the jet generation and propagation in the envelope of these low mass Pop III stars, we find that a Pop III blue super giant star has the possibility to raise a gamma-ray burst (GRB) even though it keeps a massive hydrogen envelope. We evaluate observational characters of Pop III GRBs and predict that Pop III GRBs have the duration of $\sim 10^5$ sec in the observer frame and the peak luminosity of $\sim 5 \times 10^{50} {\rm erg} {\rm sec}^{-1}$. Assuming that the $E_p-L_p$ (or $E_p-E_{γ, \rm iso}$) correlation holds for Pop III GRBs, we find that the spectrum peak energy falls $\sim$ a few keV (or $\sim 100$ keV) in the observer frame. We discuss the detectability of Pop III GRBs by future satellite missions such as EXIST and Lobster. If the $E_p-E_{γ, \rm iso}$ correlation holds, we have the possibility to detect Pop III GRBs at $z \sim 9$ as long duration X-ray rich GRBs by EXIST. On the other hand, if the $E_p-L_p$ correlation holds, we have the possibility to detect Pop III GRBs up to $z \sim 19$ as long duration X-ray flashes by Lobster.
description: 27 pages, 7 figures, Accepted to the Astrophysical Journal
title: SLRS-5: River water reference material for trace metals: certificate of analysis
Creators: name: Boyko, Victor
name: Brophy, Christine
name: Clancy, Vincent
name: Willie, Scott
name: Yang, Lu
Publisher: name: National Research Council Canada
Year: 2012
Subjects: subject: Canadian reference material
subject: SLRS-5
subject: trace metals
subject: river water

description: Certified values for the mass fraction of trace metals and major elements have been established for this river water certified reference material (SLRS-5).
Critical phenomena in heterogeneous k-core percolation
Creators: name: Cellai, Davide
name: Lawlor, Aonghus
name: Dawson, Kenneth A.
name: Gleeson, James P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: $k$-core percolation is a percolation model which gives a notion of network functionality and has many applications in network science. In analysing the resilience of a network under random damage, an extension of this model is introduced, allowing different vertices to have their own degree of resilience. This extension is named heterogeneous $k$-core percolation and it is characterized by several interesting critical phenomena. Here we analytically investigate binary mixtures in a wide class of configuration model networks and categorize the different critical phenomena which may occur. We observe the presence of critical and tricritical points and give a general criterion for the occurrence of a tricritical point. The calculated critical exponents show cases in which the model belongs to the same universality class of facilitated spin models studied in the context of the glass transition.
title: SLRS-5: Matériau de référence composé d’eau riveraine pour l’analyse des métaux-traces : certificat d'analyse
Creators: name: Boyko, Victor
name: Brophy, Christine
name: Clancy, Vincent
name: Willie, Scott
name: Yang, Lu
Publisher: name: National Research Council Canada
Year: 2012
Subjects: subject: matériau de référence canadien
subject: SLRS-5
subject: métaux traces
subject: eau riveraine

description: Les valeurs certifiées suivante ont été établies pour le matériel de référence d’eau riveraine: fraction massique des métaux traces et éléments majeurs (SLRS-5).
Comparative Study and Optimization of Feature-Extraction Techniques for Content based Image Retrieval
Creators: name: Chadha, Aman
name: Mallik, Sushmit
name: Johar, Ravdeep
Publisher: name: arXiv
Year: 2012
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: Information Retrieval (cs.IR)
subject: Machine Learning (cs.LG)
subject: Multimedia (cs.MM)
subject: FOS: Computer and information sciences

description: The aim of a Content-Based Image Retrieval (CBIR) system, also known as Query by Image Content (QBIC), is to help users to retrieve relevant images based on their contents. CBIR technologies provide a method to find images in large databases by using unique descriptors from a trained image. The image descriptors include texture, color, intensity and shape of the object inside an image. Several feature-extraction techniques viz., Average RGB, Color Moments, Co-occurrence, Local Color Histogram, Global Color Histogram and Geometric Moment have been critically compared in this paper. However, individually these techniques result in poor performance. So, combinations of these techniques have also been evaluated and results for the most efficient combination of techniques have been presented and optimized for each class of image query. We also propose an improvement in image retrieval performance by introducing the idea of Query modification through image cropping. It enables the user to identify a region of interest and modify the initial query to refine and personalize the image retrieval results.
description: 8 pages, 16 figures, 11 tables
Anne P. Alwis – Martin Hinterberger – Elisabeth Schiffer (eds), Metaphrasis in Byzantine Literature (Byzantioς 17).
Creators: name: Rance, Philip
Publisher: name: The Byzantine Review
Year: 2023
Subjects: Byzantine literature
metaphrasis

description: Anne P. Alwis – Martin Hinterberger – Elisabeth Schiffer (eds), Metaphrasis in Byzantine Literature (Byzantioς 17). Turnhout: Brepols 2021. 179 pp. – ISBN 978-2-503-59344-9 (€ 65.00)
description: The Byzantine Review, Bd. 5 (2023)
Fundmünzen der salischen Kaiserzeit aus dem Trierer Land
Creators: name: Gilles, Karl-Josef
Publisher: name: Funde und Ausgrabungen im Bezirk Trier
Year: 2019

description: [nicht vorhanden]
description: Funde und Ausgrabungen im Bezirk Trier, Bd. 18 (1986): Funde und Ausgrabungen im Bezirk Trier : Aus der Arbeit des Rheinischen Landesmuseums Trier
EMRI corrections to the angular velocity and redshift factor of a mass in circular orbit about a Kerr black hole
Creators: name: Shah, Abhay G.
name: Friedman, John L.
name: Keidl, Tobias S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: This is the first of two papers on computing the self-force in a radiation gauge for a particle moving in circular, equatorial orbit about a Kerr black hole. In the EMRI (extreme-mass-ratio inspiral) framework, with mode-sum renormalization, we compute the renormalized value of the quantity $h_{αβ}u^αu^β$, gauge-invariant under gauge transformations generated by a helically symmetric gauge vector; and we find the related order $\frak{m}$ correction to the particle's angular velocity at fixed renormalized redshift (and to its redshift at fixed angular velocity). The radiative part of the perturbed metric is constructed from the Hertz potential which is extracted from the Weyl scalar by an algebraic inversion\cite{sf2}. We then write the spin-weighted spheroidal harmonics as a sum over spin-weighted spherical harmonics and use mode-sum renormalization to find the renormalization coefficients by matching a series in $L=\ell+1/2$ to the large-$L$ behavior of the expression for $H := \frac12 h_{αβ}u^αu^β$. The non-radiative parts of the perturbed metric associated with changes in mass and angular momentum are calculated in the Kerr gauge.
Survey of Neuroanatomic Sampling and Staining Procedures in Alzheimer Disease Research Center Brain Banks
Creators: name: Vizcarra, Juan Carlos
name: Teich, Andrew
name: Dugger, Brittany
name: Gutman, David
Publisher: name: Free Neuropathology
Year: 2023
Subjects: Neuropathology
Brain Banks
ADRCs
Tissue Repository
Biobank

description: The collection of post-mortem brain tissue has been a core function of the Alzheimer Disease Research Center’s (ADRCs) network located within the United States since its inception. Individual brain banks and centers follow detailed protocols to record, store, and manage complex datasets that include clinical data, demographics, and when post-mortem tissue is available, a detailed neuropathological assessment. Since each institution often has specific research foci, there can be variability in tissue collection and processing workflows. While published guidelines exist for select diseases, such as those put forth by the National Institute on Aging and Alzheimer Association (NIA-AA), it is of importance to denote the current practices across institutions. To this end a survey was developed and sent to United States based brain bank leaders, collecting data on brain region sampling, including anatomic landmarks used, staining (including antibodies used), as well as whole-slide-image scanning hardware. We distributed this survey to 40 brain banks and obtained a response rate of 95% (38 / 40). Most brain banks followed guidelines defined by the NIA-AA, having H&E staining in all recommended regions and targeted region-based amyloid beta, tau, and alpha-synuclein immunohistochemical staining. However, sampling consistency varied related to key anatomic landmarks/locations in select regions, such as the striatum, periventricular white matter, and parietal cortex. This study highlights the diversity and similarities amongst brain banks and discusses considerations when amalgamating data/samples across multiple centers. This survey aids in establishing benchmarks to enhance dialogues on divergent workflows in a feasible way.
description: Free Neuropathology, Bd. 4 (2023)
Alte Funde wieder entdeckt : Ein Grabfund des 1. Jahrhunderts n. Chr
Creators: name: Goethert-Polaschek, Karin
Publisher: name: Funde und Ausgrabungen im Bezirk Trier
Year: 2019

description: [nicht vorhanden]
description: Funde und Ausgrabungen im Bezirk Trier, Bd. 19 (1987): Funde und Ausgrabungen im Bezirk Trier : Aus der Arbeit des Rheinischen Landesmuseums Trier
A $p$-adic Approach to the Weil Representation of Discriminant Forms Arising from Even Lattices
Creators: name: Zemel, Shaul
Publisher: name: arXiv
Year: 2012
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: Suppose that $M$ is an even lattice with dual $M^{*}$ and level $N$. Then the group $Mp_{2}(\mathbb{Z})$, which is the unique non-trivial double cover of $SL_{2}(\mathbb{Z})$, admits a representation $ρ_{M}$, called the Weil representation, on the space $\mathbb{C}[M^{*}/M]$. The main aim of this paper is to show how the formulae for the $ρ_{M}$-action of a general element of $Mp_{2}(\mathbb{Z})$ can be obtained by a direct evaluation which does not depend on ``external objects'' such as theta functions. We decompose the Weil representation $ρ_{M}$ into $p$-parts, in which each $p$-part can be seen as subspace of the Schwartz functions on the $p$-adic vector space $M_{\mathbb{Q}_{p}}$. Then we consider the Weil representation of $Mp_{2}(\mathbb{Q}_{p})$ on the space of Schwartz functions on $M_{\mathbb{Q}_{p}}$, and see that restricting to $Mp_{2}(\mathbb{Z})$ just gives the $p$-part of $ρ_{M}$ again. The operators attained by the Weil representation are not always those appearing in the formulae from 1964, but are rather their multiples by certain roots of unity. For this, one has to find which pair of elements, lying over a matrix in $SL_{2}(\mathbb{Q}_{p})$, belong to the metaplectic double cover. Some other properties are also investigated.
description: 29 pages, shortened a lot
Spin entangled two-particle dark state in quantum transport through coupled quantum dots
Creators: name: Pöltl, Christina
name: Emary, Clive
name: Brandes, Tobias
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present a transport setup of coupled quantum dots that enables the creation of spatially separated spin-entangled two-electron dark states. We prove the existence of an entangled transport dark state by investigating the system Hamiltonian without coupling to the electronic reservoirs. In the transport regime the entangled dark state which corresponds to a singlet has a strongly enhanced Fano factor compared to the dark state which corresponds to a mixture of the triplet states. Furthermore we calculate the concurrence of the occupying electrons to show the degree of entanglement in the transport regime.
description: 9 pages and 3 figures
Ein neugefundener Silberteller mit Graffiti aus der römischen Villa von Wittlich
Creators: name: Schwinden, Lothar
Publisher: name: Funde und Ausgrabungen im Bezirk Trier
Year: 2019

description: [nicht vorhanden]
description: Funde und Ausgrabungen im Bezirk Trier, Bd. 21 (1989): Funde und Ausgrabungen im Bezirk Trier : Aus der Arbeit des Rheinischen Landesmuseums Trier
Majorana modes and complex band structure of quantum wires
Creators: name: Serra, Llorenç
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We describe Majorana edge states of a semi-infinite wire using the complex band structure approach. In this method the edge state at a given energy is built as a superposition of evanescent waves. It is shown that the superposition can not always satisfy the required boundary condition, thus restricting the existence of edge modes. We discuss purely 1D and 2D systems, focussing in the latter case on the effect of the Rashba mixing term.
description: 8 pages, 6 figures
Paul Steiner (1876 - 1944) und die Ringwallforschung im Trierer Land
Creators: name: Merten, Jürgen
Publisher: name: Funde und Ausgrabungen im Bezirk Trier
Year: 2019

description: [nicht vorhanden]
description: Funde und Ausgrabungen im Bezirk Trier, Bd. 26 (1994): Funde und Ausgrabungen im Bezirk Trier : Aus der Arbeit des Rheinischen Landesmuseums Trier
Neuere Untersuchungen an den "Pützlöchern" bei Kordel/Butzweiler
Creators: name: Gilles, Karl-Josef
Publisher: name: Funde und Ausgrabungen im Bezirk Trier
Year: 2019

description: [nicht vorhanden]
description: Funde und Ausgrabungen im Bezirk Trier, Bd. 27 (1995): Funde und Ausgrabungen im Bezirk Trier : Aus der Arbeit des Rheinischen Landesmuseums Trier
The escape fraction of ionizing photons from high redshift galaxies from data-constrained reionization models
Creators: name: Mitra, Sourav
name: Ferrara, Andrea
name: Choudhury, T. Roy
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The escape fraction, f_{esc}, of ionizing photons from high-redshift galaxies is a key parameter to understand cosmic reionization and star formation history. Yet, in spite of many efforts, it remains largely uncertain. We propose a novel, semi-empirical approach based on a simultaneous match of the most recently determined Luminosity Functions (LF) of galaxies in the redshift range 6 \leq z \leq 10 with reionization models constrained by a large variety of experimental data. From this procedure we obtain the evolution of the best-fit values of f_{esc} along with their 2-sigma limits. We find that, averaged over the galaxy population, (i) the escape fraction increases from f_{esc} = 0.068_{-0.047}^{+0.054} at z=6 to f_{esc} = 0.179_{-0.132}^{+0.331} at z=8; (ii) at z=10 we can only put a lower limit of f_{esc} > 0.146. Thus, although errors are large, there is an indication of a 2.6 times increase of the average escape fraction from z=6 to z=8 which might partially release the "starving reionization" problem.
description: 5 pages, 3 figures. Accepted in MNRAS Letter. Revised to match the accepted version
title: Smartphones as steady companions: device use in everyday life and the economics of attention
Creators: name: Heitmayer, Maximilian
Publisher: name: London School of Economics and Political Science (LSE)
Year: 2021

description: This thesis investigates smartphone use in naturally occurring contexts with a dataset comprising 200 hours of audio-visual first-person recordings from wearable cameras, and self-confrontation interview video footage (N = 41 users). The situated context in which smartphone use takes place has often been overlooked because of the technical difficulty of capturing context of use, actual action of users, and their subjective experience simultaneously. This research project contributes to filling this gap, with a detailed, mixed-methods analysis of over a thousand individual phone engagement behaviours (EB). We observe that (a) the smartphone is a key structuring element in the flow of daily activities. Participants report complex strategies on how they manage engaging with or avoiding their devices. (b) Unexpectedly, we find that the majority of EB (89%) are initiated by users, not devices; users engage with the phone roughly every five minutes regardless of the context they are in. (c) A large portion of EB seems to stem from contextual cues and an unconscious urge to pick up the device, even when there is no clear reason to do so. d) Participants are surprised about, and often unhappy with how frequently they mindlessly reach for the phone. Our in-depth analysis unveils several overlapping layers of motivations and triggers driving EB. Monitoring incoming notifications, managing time use, responding to social pressures, actually completing a task with the phone, design factors, unconscious urges, as well as the accessibility of the device, and most importantly its affordance for distraction all contribute to picking up the phone. This user drive for EB is used by providers to feed the attention economy. So far, keeping the smartphone outside of the visual field and immediate reach has appeared as the only efficient strategy to prevent overuse.
Sigillum palatii nostri : Anmerkungen zur frühesten überlieferten Darstellung der Trierer Palastaula (sogen. Basilika)
Creators: name: Clemens, Lukas
Publisher: name: Funde und Ausgrabungen im Bezirk Trier
Year: 2019

description: [nicht vorhanden]
description: Funde und Ausgrabungen im Bezirk Trier, Bd. 27 (1995): Funde und Ausgrabungen im Bezirk Trier : Aus der Arbeit des Rheinischen Landesmuseums Trier
Inhaltsverzeichnis
Creators: name: Redaktion, Die
Publisher: name: Funde und Ausgrabungen im Bezirk Trier
Year: 2019

description: -
description: Funde und Ausgrabungen im Bezirk Trier, Bd. 27 (1995): Funde und Ausgrabungen im Bezirk Trier : Aus der Arbeit des Rheinischen Landesmuseums Trier
Exploring wind direction and SO2 concentration by circular-linear density estimation
Creators: name: García-Portugués, Eduardo
name: Crujeiras, Rosa M.
name: González-Manteiga, Wenceslao
Publisher: name: arXiv
Year: 2012
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences
subject: 62G07, 62H11

description: The study of environmental problems usually requires the description of variables with different nature and the assessment of relations between them. In this work, an algorithm for flexible estimation of the joint density for a circular-linear variable is proposed. The method is applied for exploring the relation between wind direction and SO2 concentration in a monitoring station close to a power plant located in Galicia (NW-Spain), in order to compare the effectiveness of precautionary measures for pollutants reduction in two different years.
description: 17 pages, 7 figures, 2 tables
Requisit oder Dekor? : Bruchstücke einer lebensgroßen Tonmaske aus dem gallo-römischen Vicus von Taberna-Tawern
Creators: name: Pfahl, Stefan F.
Publisher: name: Funde und Ausgrabungen im Bezirk Trier
Year: 2019

description: [nicht vorhanden]
description: Funde und Ausgrabungen im Bezirk Trier, Bd. 31 (1999): Funde und Ausgrabungen im Bezirk Trier : Aus der Arbeit des Rheinischen Landesmuseums Trier
"Das Bild des römischen Trier teilweise auch in seiner geschichtlichen Entwicklung..." : Zum 100. Todestag von Felix Hettner
Creators: name: Pfahl, Stefan F.
Publisher: name: Funde und Ausgrabungen im Bezirk Trier
Year: 2019

description: [nicht vorhanden]
description: Funde und Ausgrabungen im Bezirk Trier, Bd. 34 (2002): Funde und Ausgrabungen im Bezirk Trier : Aus der Arbeit des Rheinischen Landesmuseums Trier
Thermodynamic Casimir Forces between a Sphere and a Plate: Monte Carlo Simulation of a Spin Model
Creators: name: Hasenbusch, Martin
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the thermodynamic Casimir force between a spherical object and a plate. We consider the bulk universality class of the three-dimensional Ising model, which is relevant for experiments on binary mixtures. To this end, we simulate the improved Blume-Capel model. Following Hucht, we compute the force by integrating energy differences over the inverse temperature. We demonstrate that these energy differences can be computed efficiently by using a particular cluster algorithm. Our numerical results for strongly symmetry breaking boundary conditions are compared with the Derjaguin approximation for small distances and the small sphere expansion for large distances between the sphere and the plate.
description: 32 pages, 16 figures, reference added, value of the parameter i_m in section V A corrected
Expected Sensitivity to Galactic/Solar Axions and Bosonic Super-WIMPs based on the Axio-electric Effect in Liquid Xenon Dark Matter Detectors
Creators: name: Arisaka, K.
name: Beltrame, P.
name: Ghag, C.
name: Kaidi, J.
name: Lung, K.
name: Lyashenko, A.
name: Peccei, R. D.
name: Smith, P.
name: Ye, K.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We present systematic case studies to investigate the sensitivity of axion searches by liquid xenon detectors, using the axio-electric effect (analogue of the photoelectric effect) on xenon atoms. Liquid xenon is widely considered to be one of the best target media for detection of WIMPs (Weakly Interacting Massive Particles which may form the galactic dark matter) using nuclear recoils. Since these detectors also provide an extremely low radioactivity environment for electron recoils, very weakly-interacting low-mass particles (< 100 keV/c^2), such as the hypothetical axion, could be detected as well - in this case using the axio-electric effect. Future ton-scale liquid Xe detectors will be limited in sensitivity only by irreducible neutrino background (pp-chain solar neutrino and the double beta decay of 136Xe) in the mass range between 1 and 100 keV/c^2. Assuming one ton-year of exposure, galactic axions (as non-relativistic dark matter) could be detected if the axio-electric coupling g_Ae is greater than 10^-14 at 1 keV/c^2 (or $10^-13 at 100 keV/c^2). Below a few keV/c^2, and independent of the mass, a solar axion search would be sensitive to a coupling g_Ae ~ 10^-12. This limit will set a stringent upper bound on axion mass for the DFSV and KSVZ models for the mass ranges m_A < 0.1 eV/c^2 and < 10 eV/c^2, respectively. Vector-boson dark matter could also be detected for a coupling constant alpha'/alpha > 10^-33 (for mass 1 keV/c^2) or > 10^-27 (for mass 100 keV/c^2).
description: 17 pages, 10 figures
Die Marmorbüste von Felix Hettner (1851-1902) im Rheinischen Landesmuseum Trier : Ein Werk des Bonner Bildhauers Albert Küppers
Creators: name: Merten, Jürgen
Publisher: name: Funde und Ausgrabungen im Bezirk Trier
Year: 2019

description: [nicht vorhanden]
description: Funde und Ausgrabungen im Bezirk Trier, Bd. 34 (2002): Funde und Ausgrabungen im Bezirk Trier : Aus der Arbeit des Rheinischen Landesmuseums Trier
Spielen und Geben : Römische Spieltafeln aus Trier
Creators: name: Merten, Hiltrud
Publisher: name: Funde und Ausgrabungen im Bezirk Trier
Year: 2019

description: [nicht vorhanden]
description: Funde und Ausgrabungen im Bezirk Trier, Bd. 38 (2006): Funde und Ausgrabungen im Bezirk Trier : Aus der Arbeit des Rheinischen Landesmuseums Trier
Freezing Transitions and Extreme Values: Random Matrix Theory, $ζ(1/2+it)$, and Disordered Landscapes
Creators: name: Fyodorov, Yan V.
name: Keating, Jonathan P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Number Theory (math.NT)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We argue that the freezing transition scenario, previously conjectured to occur in the statistical mechanics of 1/f-noise random energy models, governs, after reinterpretation, the value distribution of the maximum of the modulus of the characteristic polynomials p_N(θ) of large N\times N random unitary (CUE) matrices; i.e. the extreme value statistics of p_N(θ) when N \rightarrow\infty. In addition, we argue that it leads to multifractal-like behaviour in the total length μ_N(x) of the intervals in which |p_N(θ)|>N^x, x>0, in the same limit. We speculate that our results extend to the large values taken by the Riemann zeta-function ζ(s) over stretches of the critical line s=1/2+it of given constant length, and present the results of numerical computations of the large values of ζ(1/2+it). Our main purpose is to draw attention to the unexpected connections between these different extreme value problems.
description: The published version
Konrad von Soest und sein Kreis
Creators: name: Pieper, Paul
Publisher: name: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Year: 2019

description: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege, Bd. 3 Nr. 8 (1950): Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
The J_{eff}=1/2 insulator Sr3Ir2O7 studied by means of angle-resolved photoemission spectroscopy
Creators: name: Wojek, B. M.
name: Berntsen, M. H.
name: Boseggia, S.
name: Boothroyd, A. T.
name: Prabhakaran, D.
name: McMorrow, D. F.
name: Rønnow, H. M.
name: Chang, J.
name: Tjernberg, O.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The low-energy electronic structure of the J_{eff}=1/2 spin-orbit insulator Sr3Ir2O7 has been studied by means of angle-resolved photoemission spectroscopy. A comparison of the results for bilayer Sr3Ir2O7 with available literature data for the related single-layer compound Sr2IrO4 reveals qualitative similarities and similar J_{eff}=1/2 bandwidths for the two materials, but also pronounced differences in the distribution of the spectral weight. In particuar, photoemission from the J_{eff}=1/2 states appears to be suppressed. Yet, it is found that the Sr3Ir2O7 data are in overall better agreement with band-structure calculations than the data for Sr2IrO4.
description: 5 pages, 3 figures
ATP-Dependent Clp Protease Subunit C1, HvClpC1, Is a Strong Candidate Gene for Barley Variegation Mutant luteostrians as Revealed by Genetic Mapping and Genomic Re-sequencing
Creators: name: Li, Mingjiu
name: Guo, Ganggang
name: Pidon, Hélène
name: Melzer, Michael
name: Prina, Alberto R.
name: Börner, Thomas
name: Stein, Nils
Publisher: name: Humboldt-Universität zu Berlin
Year: 2021
Subjects: subject: chloroplast development
subject: genetic mapping
subject: genomic re-sequencing
subject: comparative analysis
subject: luteostrians
subject: albostrians
subject: HvClpC1
subject: Hordeum vulgare
subject: 570 Biologie

description: Implementation of next-generation sequencing in forward genetic screens greatly accelerated gene discovery in species with larger genomes, including many crop plants. In barley, extensive mutant collections are available, however, the causative mutations for many of the genes remains largely unknown. Here we demonstrate how a combination of low-resolution genetic mapping, whole-genome resequencing and comparative functional analyses provides a promising path toward candidate identification of genes involved in plastid biology and/or photosynthesis, even if genes are located in recombination poor regions of the genome. As a proof of concept, we simulated the prediction of a candidate gene for the recently cloned variegation mutantalbostrians(HvAST/HvCMF7) and adopted the approach for suggestingHvClpC1as candidate gene for the yellow-green variegation mutantluteostrians.
Knöll, Heinz: Die nordwestdeutsche Tiefstichkeramik und ihre Stellung im nord- und mitteleuropäischen Neolithikum
Creators: name: Jacob-Friesen, Karl Hermann
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Rezension zu: Knöll, Heinz: Die nordwestdeutsche Tiefstichkeramik und ihre Stellung im nord- und mitteleuropäischen Neolithikum. Münster i. Westf. (Aschendorffsche Verlagsbuchhandlung) 1959. 180 Seiten mit 1 Abb. im Text, 25 Verbreitungskarten und 45 Taf.
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 28 (1959): Nachrichten aus Niedersachsens Urgeschichte
Fat Hoffman graphs with smallest eigenvalue greater than -3
Creators: name: Munemasa, Akihiro
name: Sano, Yoshio
name: Taniguchi, Tetsuji
Publisher: name: arXiv
Year: 2012
Subjects: subject: Combinatorics (math.CO)
subject: Discrete Mathematics (cs.DM)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 05C50, 05C75

description: In this paper, we give a combinatorial characterization of the special graphs of fat Hoffman graphs containing $\mathfrak{K}_{1,2}$ with smallest eigenvalue greater than -3, where $\mathfrak{K}_{1,2}$ is the Hoffman graph having one slim vertex and two fat vertices.
description: 21+5 pages
Infrared Observations of The Millisecond Pulsar Binary J1023+0038: Evidence for Short-Term Nature of Its Interacting Phase in 2000--2001
Creators: name: Wang, Xuebing
name: Wang, Zhongxiang
name: Morrell, Nidia
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report our multi-band infrared (IR) imaging of the transitional millisecond pulsar system J1023+0038, a rare pulsar binary known to have an accretion disk in 2000--2001. The observations were carried out with ground-based and space telescopes from near-IR to far-IR wavelengths. We detected the source in near-IR JH bands and Spitzer 3.6 and 4.5 $μ$m mid-IR channels. Combined with the previously-reported optical spectrum of the source, the IR emission is found to arise from the companion star, with no excess emission detected in the wavelength range. Because our near-IR fluxes are nearly equal to those obtained by the 2MASS all-sky survey in 2000 Feb., the result indicates that the binary did not contain the accretion disk at the time, whose existence would have raised the near-IR fluxes to 2-times larger values. Our observations have thus established the short-term nature of the interacting phase seen in 2000--2001: the accretion disk at most existed for 2.5 yrs. The binary was not detected by the WISE all-sky survey carried out in 2010 at its 12 and 22 $μ$m bands and our Herschel far-IR imaging at 70 and 160 $μ$m. Depending on the assumed properties of the dust, the resulting flux upper limits provide a constraint of <3x10^{22}--3x10^{25} g on the mass of the dust grains that possibly exist as the remnant of the previously-seen accretion disk.
description: 7 page, 1 figure, 2 tables, accepted for publication in ApJ
Numerical Computations For Operator Axioms
Creators: name: Xie, Pith Peishu
Publisher: name: arXiv
Year: 2012
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 11Y16, Secondary 65H05, 49M25, 11B85, 03D05

description: The Operator axioms have produced new real numbers with new operators. New operators naturally produce new equations and thus extend the traditional mathematical models which are selected to describe various scientific rules. So new operators help to describe complex scientific rules which are difficult described by traditional equations and have an enormous application potential. As to the equations including new operators, engineering computation often need the approximate solutions reflecting an intuitive order relation and equivalence relation. However, the order relation and equivalence relation of real numbers are not as intuitive as those of base-b expansions. Thus, this paper introduces numerical computations to approximate all real numbers with base-b expansions.
description: 15 pages, 1 figures
$T_1$-Echo Sequence - Protecting the state of a qubit in the presence of coherent interaction
Creators: name: Müller, Clemens
name: Shnirman, Alexander
name: Weides, Martin
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We propose a sequence of pulses intended to preserve the state of a qubit in the presence of strong, coherent coupling to another quantum system. The sequence can be understood as a generalized SWAP and works in formal analogy to the well-known spin echo. Since the resulting effective decoherence rate of the qubits state is strongly influenced by the additional system, this sequence might serve to protect its quantum state as well as negating the effects of the coherent coupling. A possible area of application are large scale quantum computing architectures, where spectral crowding of the resources might necessitate a method to mitigate residual couplings.
description: 9 pages, 7 figures, as published
Das Nordsee-Programm der Deutschen Forschungsgemeinschaft zur Untersuchung eisenzeitlicher Siedlungen im norddeutschen Flachland
Creators: name: Treue, W.
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 30 (1961): Nachrichten aus Niedersachsens Urgeschichte
Some aspects of QGP phase in a hQCD model
Creators: name: Cai, Rong-Gen
name: Chakrabortty, Shankhadeep
name: He, Song
name: Li, Li
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We continue to study the holographic QCD (hQCD) model, proposed in a previous paper, in an Einstein-Maxwell-Dilaton (EMD) system. In this paper we discuss some aspects of quark gluon plasma (QGP) in the hQCD model, such as drag force, jet quenching parameter and screening length. The results turn out to be consistent with those as expected in QCD qualitatively. By calculating free energy of the background black hole solution, we find that there exists a Hawking-Page phase transition between small black hole and big black hole when chemical potential $μ$ is less than a critical one $ μ_c$, and the phase transition is absent when chemical potential is beyond the critical one.
description: 31 pages,15 figures, LaTeX, Statements and figures have been improved. Accepted by JHEP
Newton polygons for a variant of the Kloosterman family
Creators: name: Bellovin, Rebecca
name: Garthwaite, Sharon Anne
name: Ozman, Ekin
name: Pries, Rachel
name: Williams, Cassandra
name: Zhu, Hui June
Publisher: name: arXiv
Year: 2012
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11T24

description: We study the p-adic valuations of roots of L-functions associated with certain families of exponential sums of Laurent polynomials in n variables over a finite field. The families we consider are reflection and Kloosterman variants of diagonal polynomials. Using decomposition theorems of Wan, we determine the Newton and Hodge polygons of a non-degenerate Laurent polynomial in one of these families.
description: 18 pages, Accepted for publication in the Women In Numbers 2 conference proceedings
Parton distributions with LHC data
Creators: name: Ball, Richard D.
name: Bertone, Valerio
name: Carrazza, Stefano
name: Deans, Christopher S.
name: Del Debbio, Luigi
name: Forte, Stefano
name: Guffanti, Alberto
name: Hartland, Nathan P.
name: Latorre, Jose I.
name: Rojo, Juan
name: Ubiali, Maria
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present the first determination of parton distributions of the nucleon at NLO and NNLO based on a global data set which includes LHC data: NNPDF2.3. Our data set includes, besides the deep inelastic, Drell-Yan, gauge boson production and jet data already used in previous global PDF determinations, all the relevant LHC data for which experimental systematic uncertainties are currently available: ATLAS and LHCb W and Z lepton rapidity distributions from the 2010 run, CMS W electron asymmetry data from the 2011 run, and ATLAS inclusive jet cross-sections from the 2010 run. We introduce an improved implementation of the FastKernel method which allows us to fit to this extended data set, and also to adopt a more effective minimization methodology. We present the NNPDF2.3 PDF sets, and compare them to the NNPDF2.1 sets to assess the impact of the LHC data. We find that all the LHC data are broadly consistent with each other and with all the older data sets included in the fit. We present predictions for various standard candle cross-sections, and compare them to those obtained previously using NNPDF2.1, and specifically discuss the impact of ATLAS electroweak data on the determination of the strangeness fraction of the proton. We also present collider PDF sets, constructed using only data from HERA, Tevatron and LHC, but find that this data set is neither precise nor complete enough for a competitive PDF determination.
description: 56 pages, 30 figures. LHCb dataset updated, all tables and plots recomputed accordingly (results essentially unchanged). Several typos corrected, several small textual improvements and clarifications
Energy Quantisation and Time Parameterisation
Creators: name: Faraggi, Alon E.
name: Matone, Marco
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show that if space is compact, then trajectories cannot be defined in the framework of quantum Hamilton--Jacobi equation. The starting point is the simple observation that when the energy is quantized it is not possible to make variations with respect to the energy, and the time parameterisation t-t_0=\partial_E S_0, implied by Jacobi's theorem and that leads to group velocity, is ill defined. It should be stressed that this follows directly form the quantum HJ equation without any axiomatic assumption concerning the standard formulation of quantum mechanics. This provides a stringent connection between the quantum HJ equation and the Copenhagen interpretation. Together with tunneling and the energy quantization theorem for confining potentials, formulated in the framework of quantum HJ equation, it leads to the main features of the axioms of quantum mechanics from a unique geometrical principle. Similarly to the case of the classical HJ equation, this fixes its quantum analog by requiring that there exist point transformations, rather than canonical ones, leading to the trivial hamiltonian. This is equivalent to a basic cocycle condition on the states. Such a cocycle condition can be implemented on compact spaces, so that continuous energy spectra are allowed only as a limiting case. Remarkably, a compact space would also imply that the Dirac and von Neumann formulations of quantum mechanics essentially coincide. We suggest that there is a definition of time parameterisation leading to trajectories in the context of the quantum HJ equation having the probabilistic interpretation of the Copenhagen School.
description: 11 pages. The main addition concerns a discussion on the variational principle in the case of discrete energy spectra (Jacobi's Theorem). References added
László Barkóczi, Pannonische Glasfunde in Ungarn
Creators: name: Czurda-Ruth, Barbara
Publisher: name: Bonner Jahrbücher
Year: 2019

description: Rezension zu: László Barkóczi, Pannonische Glasfunde in Ungarn. Studia Archaeologica, Band 9. Ungarische Akademie der Wissenschaften, Budapest 1988. 223 Seiten, 117 Tafeln.
description: Bonner Jahrbücher, Bd. 190.1990(1991): Bonner Jahrbücher
Universality of multi-particle production in QCD at high energies
Creators: name: Dominguez, Fabio
name: Marquet, Cyrille
name: Stasto, Anna M.
name: Xiao, Bo-Wen
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: By studying the color structure of multi-particle production processes in p+A-type (dilute-dense) collisions, we find that higher-point functions beyond typical dipoles and quadrupoles, e.g., sextupoles, octupoles, etc., naturally appear in the cross sections, but are explicitly suppressed in the large-N_c limit. We evaluate the sextupole in the McLerran-Venugopalan model and find that, in general, its analytical form cannot be written as combination of dipoles and quadrupoles. Within the Color Glass Condensate framework, we present a proof that in the large-N_c limit, all multi-particle production processes in the collision of a dilute system off a dense can, up to all orders in α_s, be described in terms of only dipoles and quadrupoles.
description: 24 pages, 16 figures, Published in Phys.Rev.D
Beat Rütti, Die römischen Gläser aus Augst und Kaiseraugst
Creators: name: Saldern, Axel Von
Publisher: name: Bonner Jahrbücher
Year: 2019

description: Rezension zu: Beat Rütti, Die römischen Gläser aus Augst und Kaiseraugst. Forschungen in Augst, Band 13/1-2. Verlag Römermuseum, Augst 1991. Bd. 1, Text: 370 Seiten, 276 Abbildungen, 56 Tabellen, 5 Formtafeln, Resümees in Französisch, Italienisch und Englisch, 4 Microfiches; Bd. 2, Katalog und Tafeln: 433 Seiten mit 205 Schwarz-Weiß- und 16 Farbtafeln.
description: Bonner Jahrbücher, Bd. 193.1993(1994): Bonner Jahrbücher
Global wellposedness of hedgehog solutions for the (3+1) Skyrme model
Creators: name: Li, Dong
Publisher: name: arXiv
Year: 2012
Subjects: subject: Analysis of PDEs (math.AP)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 35Q55, 35Q99

description: We consider the dynamics of hedgehog solutions in the $(3+1)$-dimensional Skyrme model which is an energy-supercritical problem. We introduce a new strategy to prove global wellposedness for arbitrarily large initial data.
description: Citation: Dong Li. "Global well-posedness of hedgehog solutions for the (3+1) Skyrme model." Duke Math. J. 170 (7) 1377--1418 (2021)
Essays on auditors' and financial reporting - The impact of non-financial disclosures on stakeholders' perceptions
Creators: name: Höfmann, Michelle
Publisher: name: TU Dortmund
Year: 2021
Subjects: subject: Auditors' report
subject: Key audit matters
subject: Emphasis-of-matter paragraph
subject: Going concern
subject: Report of the Supervisory Board
subject: CEO letter
subject: 330
subject: Wirtschaftsprüfung
subject: Berichterstattung
subject: Bestätigungsvermerk

description: This dissertation deals with the recent regulatory changes in audit reporting and non-financial reporting by management and the supervisory board. The first three papers of the dissertation focus on the implementation of key audit matters (KAMs) in the auditor’s report, while the fourth paper investigates the effects of a separate going concern emphasis of matter paragraph and responsibilities paragraphs in the auditor’s report. The last paper focuses on the communication of the management and the supervisory board with the financial statements’ addressees. Our results reveal that KAMs impact audit committee members’ decision making by strengthening their financial statement accountability. But in case the directors are stock-compensated, KAMs can serve as disclaimer and legitimize a more self-serving decision. However, though KAMs impact the decision making, they are only rarely mentioned in the report of the supervisory board. Therefore, the disclosure of KAMs does not increase the reporting quality of this report. There exists also room for improvement of the KAM-reporting itself in order to enhance the communicative value of the auditor’s report. Furthermore, we experimentally investigated whether a going concern emphasis of matter paragraph (GC-EOM) or a responsibilities paragraph in the auditor’s report and the strength of the audit committee influence bank directors’ decision making. Our findings show that a GC-EOM impacts bank directors’ decision making due to a source credibility effect, while we do not find significant effects of a responsibilities paragraph or the strength of the audit committee. The results of the last study reveal extensive room of improvement concerning the language of the reporting tools of management and the supervisory board.
Dieter Hägermann und Helmuth Schneider, Landbau und Handwerk 750 v. Chr. bis 1000 n. Chr.
Creators: name: Brentjes, Burchardt
Publisher: name: Bonner Jahrbücher
Year: 2019

description: Rezension zu: Dieter Hägermann und Helmuth Schneider, Landbau und Handwerk 750 v. Chr. bis 1000 n. Chr. Propyläen-Technikgeschichte, Band 1, herausgegeben von W. König. Propyläen Verlag, Berlin 1991. 542 Seiten, 238 Abbildungen, 32 Farbtafeln.
description: Bonner Jahrbücher, Bd. 194.1994 (1995): Bonner Jahrbücher
Hodge theory and derived categories of cubic fourfolds
Creators: name: Addington, N.
name: Thomas, R. P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: Cubic fourfolds behave in many ways like K3 surfaces. Certain cubics - conjecturally, the ones that are rational - have specific K3s associated to them geometrically. Hassett has studied cubics with K3s associated to them at the level of Hodge theory, and Kuznetsov has studied cubics with K3s associated to them at the level of derived categories. These two notions of having an associated K3 should coincide. We prove that they coincide generically: Hassett's cubics form a countable union of irreducible Noether-Lefschetz divisors in moduli space, and we show that Kuznetsov's cubics are a dense subset of these, forming a non-empty, Zariski open subset in each divisor.
description: 37 pages. Applications to algebraic cycles added, and other improvements following referees' suggestions. This is a slightly expanded version of the paper to appear in Duke Math J