cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Gravitational waves in a de Sitter universe
Creators: name: Bishop, Nigel T.
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The construction of exact linearized solutions to the Einstein equations within the Bondi-Sachs formalism is extended to the case of linearization about de Sitter spacetime. The gravitational wave field measured by distant observers is constructed, leading to a determination of the energy measured by such observers. It is found that gravitational wave energy conservation does not normally apply to inertial observers, but that it can be formulated for a class of accelerated observers, i.e. with worldlines that are timelike but not geodesic.
description: 9 pages
Hamiltonian structure for two-dimensional extended Green-Naghdi equations
Creators: name: Matsuno, Yoshimasa
Publisher: name: arXiv
Year: 2016
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: The two-dimensional Green-Naghdi (GN) shallow-water model for surface gravity waves is extended to incorporate the arbitrary higher-order dispersive effects. This can be achieved by developing a novel asymptotic analysis applied to the basic nonlinear water wave problem. The linear dispersion relation for the extended GN system is then explored in detail. In particular, we use its characteristics to discuss the well-posedness of the linearized problem. As illustrative examples of approximate model equations, we derive a higher-order model that is accurate to the fourth power of the dispersion parameter in the case of a flat bottom topography, and address the related issues such as the linear dispersion relation, conservation laws and the pressure distribution at the fluid bottom on the basis of this model. The original GN model is then briefly described in the case of an uneven bottom topography. Subsequently, the extended GN system presented here is shown to have the same Hamiltonian structure as that of the original GN system. Last, we demonstrate that Zakharov's Hamiltonian formulation of surface gravity waves is equivalent to that of the extended GN system by rewriting the former system in terms of the momentum density instead of the velocity potential at the free surface.
description: Ver. 2. A related paper: Y. Matsuno, Physica D 301-302 (2015) 1-7
title: Prescriptions of pharmaceuticals to asylum seekers
Creators: name: Selke, Gisbert W.
name: Langner, Irene
name: Eichler, Uwe
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: 610 Medical sciences; Medicine

description: Background: Following the increasing immigration, in particular by people seeking asylum, some aspects of coverage for their needs for health services were changed by law. As a consequence, starting from January 2016, information about prescriptions to this group of people is identifiably available [for full text, please go to the a.m. URL]
description: 23. Jahrestagung der Gesellschaft für Arzneimittelanwendungsforschung und Arzneimittelepidemiologie
Heidegger, M.: Vom Wesen der Wahrheit
Creators: name: Lotz, Joh. B.
Publisher: name: Scholastik
Year: 1970

description: Scholastik, Bd. 20 Nr. 1 (1949): Scholastik. Vierteljahresschrift für Theologie und Philosophie, Band 20/24, Heft 1
SO(10) grand unification in light of recent LHC searches and colored scalars at the TeV-scale
Creators: name: Aydemir, Ufuk
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We analyze the compatibility of the recent LHC signals and the TeV-scale left-right model(s) in the minimal nonsupersymmetric $SO(10)$ framework. We show that the models in which the Higgs content is selected based on the extended survival hypothesis do not allow the $W_R$ boson to be at the TeV-scale. By relaxing this conjecture, we investigate various scenarios where a number of colored-scalars, originated from various Pati-Salam multiplets, are light and whence they survive down to the low energies. Performing a detailed renormalization group analysis with various low-energy Higgs configurations and symmetry breaking chains, while keeping the high energy Higgs content unmodified; we find that, among a number of possibilities, the models which have a light color-triplet scalar, and its combination with a light color-sextet, particularly stand out. Although these models do allow a TeV-scale $W_R$ boson, generating the required value of the gauge coupling $g_R$ at this scale is non-trivial.
description: 39 pages, 3 figures; references added, typos corrected, matches the published version
Alejandro, J.M.: La gnoseolagia del Doctor Eximio y la acusacion nominalista
Creators: name: Vries, Josef De
Publisher: name: Scholastik
Year: 1970

description: Scholastik, Bd. 20 Nr. 1 (1949): Scholastik. Vierteljahresschrift für Theologie und Philosophie, Band 20/24, Heft 1
Mass inflation in Eddington-inspired Born-Infeld black holes: analytical scaling solutions
Creators: name: Avelino, P. P.
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the inner dynamics of accreting Eddington-inspired Born-Infeld black holes using the homogeneous approximation and taking charge as a surrogate for angular momentum. We show that there is a minimum of the accretion rate below which mass inflation does not occur, and we derive an analytical expression for this threshold as a function of the fundamental scale of the theory, the accretion rate, the mass, and the charge of the black hole. Our result explicitly demonstrates that, no matter how close Eddington-inspired Born-Infeld gravity is to general relativity, there is always a minimum accretion rate below which there is no mass inflation. For larger accretion rates, mass inflation takes place inside the black hole as in general relativity until the extremely rapid density variations bring it to an abrupt end. We derive analytical scaling solutions for the value of the energy density and of the Misner-Sharp mass attained at the end of mass inflation as a function of fundamental scale of the theory, the accretion rate, the mass, and the charge of the black hole, and compare these with the corresponding numerical solutions. We find that, except for unreasonably high accretion rates, our analytical results appear to provide an accurate description of homogeneous mass inflation inside accreting Eddington-inspired Born-Infeld black holes.
description: 6 pages, 1 figure
FOREST RESPONSE FOLLOWING THE LOSS OF ASH
Creators: name: Beckstedt, Madison Elizabeth
Publisher: name: Purdue University Graduate School
Year: 2023
Subjects: Community ecology (excl. invasive species ecology)
Landscape ecology

description: This study is part of an ongoing project established in 2007 as an emerald ash borer (Agrilus planipennis) trapping study. The primary objective of this thesis was to assess how forests have changed following the loss of ash over a 15-year period, from 2007 to 2022. The study aimed to answer three key questions: 1) How has the loss of ash affected the regeneration and recruitment patterns of ash and other tree species? 2) Which specific species are driving forest regeneration and recruitment in the absence of ash? 3) Can the data be used to predict future changes in forest composition following the loss of ash? To achieve these objectives, I conducted analyses of 44 forests representing 19 different forest types in Indiana, Michigan, and Ohio. Forest composition was examined at the overstory, midstory and understory levels to capture the overall impact of ash loss on forest regeneration and succession. Despite the decline or total loss in overstory ash, ash regeneration continued at most sites from 2017 to 2022. However, ash regeneration was not observed at 15 sites, and competition from established shade-tolerant species, such as red maple and American elm, was identified as a primary factor hindering ash recruitment. The loss of ash did not lead to significant changes in forest types. Forest types at all sites remained stable, with only minor shifts in dominant species. Tree species that were already present in the overstory filled the space left by the lost ash, thereby maintaining the existing forest types. In terms of driving species, my findings demonstrated a rapid increase in red maple dominance across all sites, particularly in the absence of ash. Red maple exhibited vigorous growth, suggesting it plays a crucial role in shaping future forest composition following ash loss. Other species, including black cherry, American elm, and American basswood, also contributed to forest regeneration, with some sites showing a shift toward a higher abundance of these species. Although the loss of ash has led to changes in forest composition, existing species have shown resilience and adaptability in filling the niche left by the lost genus. The long-term effects of emerald ash borer infestation on forest ecosystems are complex and multifaceted. This study provides insights into the regeneration and recruitment patterns of ash and other tree species following ash loss. The data suggest that while forests have experienced loss of ash, the remaining understory and midstory individuals of this species may contribute to future overstory recruitment. Furthermore, the dominance of red maple highlights its potential as a key driver of forest composition in the wake of ash loss.
Die Erkennbarkeit des eigenen Gnadenstandes nach der Lehre der Frühscholastik
Creators: name: Landgraf, Artur Michael
Publisher: name: Scholastik
Year: 1970

description: Scholastik, Bd. 20 Nr. 1 (1949): Scholastik. Vierteljahresschrift für Theologie und Philosophie, Band 20/24, Heft 1
Illuminating New Electroweak States at Hadron Colliders
Creators: name: Ismail, Ahmed
name: Izaguirre, Eder
name: Shuve, Brian
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: In this paper, we propose a novel powerful strategy to perform searches for new electroweak states. Uncolored electroweak states appear in generic extensions of the Standard Model (SM) and yet are challenging to discover at hadron colliders. This problem is particularly acute when the lightest state in the electroweak multiplet is neutral and all multiplet components are approximately degenerate. In this scenario, production of the charged fields of the multiplet is followed by decay into nearly invisible states; if this decay occurs promptly, the only way to infer the presence of the reaction is through its missing energy signature. Our proposal relies on emission of photon radiation from the new charged states as a means of discriminating the signal from SM backgrounds. We demonstrate its broad applicability by studying two examples: a pure Higgsino doublet and an electroweak quintuplet field.
description: 9 pages, 7 figures. v2: minor changes, added references, journal version
Numerical solution of the stationary multicomponent nonlinear Schrödinger equation with a constraint on the angular momentum
Creators: name: Sandin, P.
name: Ogren, M.
name: Gulliksson, M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We formulate a damped oscillating particle method to solve the stationary nonlinear Schrödinger equation (NLSE). The ground state solutions are found by a converging damped oscillating evolution equation that can be discretized with symplectic numerical techniques. The method is demonstrated for three different cases: for the single-component NLSE with an attractive self-interaction, for the single-component NLSE with a repulsive self interaction and a constraint on the angular momentum, and for the two-component NLSE with a constraint on the total angular momentum. We reproduce the so called yrast curve for the single-component case, described in [A. D. Jackson et al., Europhys. Lett. 95, 30002 (2011)], and produce for the first time an analogous curve for the two-component NLSE. The numerical results are compared with analytic solutions and competing numerical methods. Our method is well suited to handle a large class of equations and can easily be adapted to further constraints and components.
All electrical propagating spin wave spectroscopy with broadband wavevector capability
Creators: name: Ciubotaru, Florin
name: Devolder, Thibaut
name: Manfrini, Mauricio
name: Adelmann, Christoph
name: Radu, Iuliana
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We develop an all electrical experiment to perform the broadband phase-resolved spectroscopy of propagating spin waves in micrometer sized thin magnetic stripes. The magnetostatic surface spin waves are excited and detected by scaled down to 125 nm wide inductive antennas, which award ultra broadband wavevector capability. The wavevector selection can be done by applying an excitation frequency above the ferromagnetic resonance. Wavevector demultiplexing is done at the spin wave detector thanks to the rotation of the spin wave phase upon propagation. A simple model accounts for the main features of the apparatus transfer functions. Our approach opens an avenue for the all electrical study of wavevector-dependent spin wave properties including dispersion spectra or non-reciprocal propagation.
description: 5 pages, 3 figures
Synergy between measurements of the gravitational wave and the triple Higgs coupling in probing first order phase transition
Creators: name: Hashino, Katsuya
name: Kakizaki, Mitsuru
name: Kanemura, Shinya
name: Matsui, Toshinori
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Probing the Higgs potential and new physics behind the electroweak symmetry breaking is one of the most important issues of particle physics. In particular, nature of electroweak phase transition is essential for understanding physics at the early Universe, such that the strongly first order phase transition is required for a successful scenario of electroweak baryogenesis. The strongly first order phase transition is expected to be tested by precisely measuring the triple Higgs boson coupling at future colliders like the International Linear Collider. It can also be explored via the spectrum of stochastic gravitational waves to be measured at future space-based interferometers such as eLISA and DECIGO. We discuss complementarity of both the methods in testing the strongly first order phase transition of the electroweak symmetry in models with additional isospin singlet scalar fields with and without classical scale invariance. We find that they are synergetic in identifying specific models of electroweak symmetry breaking in more details.
description: 29 pages, 18 figures, version published in Physical Review D
Liebschner, Siegfried, Dem neuen Menschen eine Chance geben
Creators: name: Wendel, Ulrich
Publisher: name: Jahrbuch für evangelikale Theologie
Year: 2025

description: 1823087817
description: Jahrbuch für evangelikale Theologie, V. 22 (2008): Jahrbuch für evangelikale Theologie, Band 22
Recursion relations from soft theorems
Creators: name: Luo, Hui
name: Wen, Congkao
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We establish a set of new on-shell recursion relations for amplitudes satisfying soft theorems. The recursion relations can apply to those amplitudes whose additional physical inputs from soft theorems are enough to overcome the bad large-z behaviour. This work is a generalization of the recursion relations recently obtained by Cheung et al for amplitudes in scalar effective field theories with enhanced vanishing soft behaviours, which can be regarded as a special case of those with non-vanishing soft limits. We apply the recursion relations to tree-level amplitudes in various theories, including amplitudes in the Akulov-Volkov theory, amplitudes containing dilatons of spontaneously-broken conformal symmetry.
description: 21 pages, typos and some statements modified, references added
Körtner, Ulrich H.J. (Hrsg.), Geschichte und Vergangenheit
Creators: name: Hafner, Thomas
Publisher: name: Jahrbuch für evangelikale Theologie
Year: 2025

description: 1823087647
description: Jahrbuch für evangelikale Theologie, V. 22 (2008): Jahrbuch für evangelikale Theologie, Band 22
Do Small-mass Neutrinos participate in Gauge Transformations?
Creators: name: Kim, Y. S.
name: Maguire, G. Q.
name: Noz, M. E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: Neutrino oscillation experiments presently suggest that neutrinos have a small but finite mass. If neutrinos are to have mass, there should be a Lorentz frame in which they can be brought to rest. This paper discusses how Wigner's little groups can be used to distinguish between massive and massless particles. We derive a representation of the SL(2,c) group which separates out the two sets of spinors contained therein. One set is gauge dependent. The other set is gauge-invariant and represents polarized neutrinos. We show that a similar calculation can be done for the Dirac equation. In the large-momentum/zero-mass limit, the Dirac spinors can be separated into large and small components. The large components are gauge invariant, while the small components are not. These small components represent spin-$\frac{1}{2}$ non-zero mass particles. If we renormalize the large components, these gauge invariant spinors again represent the polarization of neutrinos. Massive neutrinos cannot be invariant under gauge transformations.
description: 15 pages
VMAT versus DCAT radiotherapy planning in SBRT Brain
Creators: name: Jeno Palvolgyi
Publisher: name: Zenodo
Year: 2023
Subjects: VMAT, DCAT, SBRT Brain

description: Abstract VMAT and DCAT radiotherapy plans were generated with the Monaco 5.1 treatment planning system for six PTVs of five Brain cancer patients. The study aimed to compare the dose distributions of the two treatment planning methods. The dose fields were compared with 3DGamma index analysis. Good agreement in dose fields (3DGamma index >90%, 3% dose and 3 mm distance correspondence) was found if no OAR nearby the PTV was present, while the VMAT plans were superior in sparing the OARs
Dreier, Wilhelm: Funktion und Ethos der Konsumwerbung
Creators: name: Nell-Breuning, Oswald Von
Publisher: name: Scholastik
Year: 1970

description: Scholastik, Bd. 40 Nr. 4 (1965): Scholastik. Vierteljahresschrift für Theologie und Philosophie, Band 40, Heft 4
Knocking on New Physics' door with a Scalar Resonance
Creators: name: Buttazzo, Dario
name: Greljo, Admir
name: Marzocca, David
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We speculate about the origin of the recent excess at ~750 GeV in diphoton resonance searches observed by the ATLAS and CMS experiments using the first 13 TeV data. Its interpretation as a new scalar resonance produced in gluon fusion and decaying to photons is consistent with all relevant exclusion bounds from the 8 TeV LHC run. We provide a simple phenomenological framework to parametrize the properties of the new resonance and show in a model-independent way that, if the scalar is produced in gluon fusion, additional new colored and charged particles are required. Finally, we discuss some interpretations in various concrete setups, such as a singlet (pseudo-) scalar, composite Higgs, and the MSSM.
description: 20 pages, 4 figures, 1 table. Extraction of the ATLAS 13 TeV diphoton signal and 8 TeV ZZ bound corrected, no sizable change in the final combination. Presentation improved, references added, and conclusions unchanged. Version to appear in EPJC
Efficient and pure femtosecond-pulse-length source of polarization-entangled photons
Creators: name: Weston, Morgan M.
name: Chrzanowski, Helen M.
name: Wollmann, Sabine
name: Boston, Allen
name: Ho, Joseph
name: Shalm, Lynden K.
name: Verma, Varun B.
name: Allman, Michael S.
name: Nam, Sae Woo
name: Patel, Raj B.
name: Slussarenko, Sergei
name: Pryde, Geoff J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We present a source of polarization entangled photon pairs based on spontaneous parametric downconversion engineered for frequency uncorrelated telecom photon generation. Our source provides photon pairs that display, simultaneously, the key properties for high-performance quantum information and fundamental quantum science tasks. Specifically, the source provides for high heralding efficiency, high quantum state purity and high entangled state fidelity at the same time. Among different tests we apply to our source we observe almost perfect non-classical interference between photons from independent sources with a visibility of $(100\pm5)\%$.
description: 16 pages, 4 figures
Bless, Josef: Mater et magistra und praktische Wirtschafts- und Sozialpolitik
Creators: name: Nell-Breuning, Oswald Von
Publisher: name: Scholastik
Year: 1970

description: Scholastik, Bd. 40 Nr. 4 (1965): Scholastik. Vierteljahresschrift für Theologie und Philosophie, Band 40, Heft 4
Digital Adaptive Carrier Phase Estimation in Multi-Level Phase Shift Keying Coherent Optical Communication Systems
Creators: name: Xu, Tianhua
name: Liu, Tiegen
name: Zhang, Yimo
name: Jacobsen, Gunnar
name: Li, Jie
name: Popov, Sergei
Publisher: name: arXiv
Year: 2016
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences
subject: C.2.5
subject: 94A12

description: The analysis of adaptive carrier phase estimation is investigated in long-haul high speed n-level phase shift keying (n-PSK) optical fiber communication systems based on the one-tap normalized least-mean-square (LMS) algorithm. The close-form expressions for the estimated carrier phase and the bit-error-rate floor have been derived in the n-PSK coherent optical transmission systems. The results show that the one-tap normalized LMS algorithm performs pretty well in the carrier phase estimation, but will be less effective with the increment of modulation levels, in the compensation of both intrinsic laser phase noise and equalization enhanced phase noise.
description: 5 pages in [IEEE] International Conference on Information Science and Control Engineering (ICISCE) 2016. arXiv admin note: text overlap with arXiv:1602.06850
CFT dual of charged AdS black hole in the large dimension limit
Creators: name: Guo, Er-Dong
name: Li, Miao
name: Sun, Jia-Rui
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the dual CFT description of the $d+1$-dimensional Reissner-Nordström-Anti de Sitter (RN-AdS$_{d+1}$) black hole in the large dimension (large $d$) limit, both for the extremal and nonextremal cases. The central charge of the dual CFT$_2$ (or chiral CFT$_1$) is calculated for the near horizon near extremal geometry which possess an AdS$_2$ structure. Besides, the $Q$-picture hidden conformal symmetry in the nonextremal background can be naturally obtained by a probe charged scalar field in the large $d$ limit, without the need to input the usual limits to probe the hidden conformal symmetry. Furthermore, an new dual CFT description of the nonextremal RN-AdS$_{d+1}$ black hole is found in the large $d$ limit and the duality is analyzed by comparing the entropies, the absorption cross sections and the retarded Green's functions obtained both from the gravity and the dual CFT sides.
description: Latex, 18 pages, minor corrections and references added
Continual Learning of Dense Signals
Creators: name: Dong, Zhengyang
Publisher: name: Stanford Digital Repository
Year: 2023
Subjects: subject: neural network
subject: coordinate network
subject: signal representation
subject: continual learning
subject: catastrophic forgetting
subject: computational imaging

description: Coordinate networks are neural networks that parameterize low-dimensional signals like images and signed distance functions. They fail to sequentially learn on a stream of signals as they catastrophically forget the earlier part of the stream. This paper proposes a method to mitigate forgetting based on a hash encoding coordinate network. Specifically, the hash table is augmented with a cache data structure along with additional regularizations. Experiments show that this method eliminates forgetting when the network learns dense signals for different data collection patterns, approaching the empirical upper bound with little margin.
Microscopic mechanism of the giant magnetocaloric effect in MnCoGe alloys probed by XMCD
Creators: name: Guillou, F.
name: Wilhelm, F.
name: Tegus, O.
name: Rogalev, A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: One important aspect of the magneto-structural transition in MnCoGe and related materials is the reduction in saturation magnetization from the orthorhombic to the hexagonal phase. Here, by combining an element specific magnetization probe such as x-ray magnetic circular dichroism and band structure calculations, we show that the magnetic moment instability between orthorhombic and hexagonal structures originates from a reduction in the Mn sub-lattice magnetization. The consequences of the moment instability for the magnetocaloric effect are discussed.
description: submitted for regular publication 30th december 2015
Theory-Agnostic Constraints on Black-Hole Dipole Radiation with Multi-Band Gravitational-Wave Astrophysics
Creators: name: Barausse, Enrico
name: Yunes, Nicolas
name: Chamberlain, Katie
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The aLIGO detection of the black-hole binary GW150914 opened a new era for probing extreme gravity. Many gravity theories predict the emission of dipole gravitational radiation by binaries. This is excluded to high accuracy in binary pulsars, but entire classes of theories predict this effect predominantly (or only) in binaries involving black holes. Joint observations of GW150914-like systems by aLIGO and eLISA will improve bounds on dipole emission from black-hole binaries by six orders of magnitude relative to current constraints, provided that eLISA is not dramatically descoped.
description: 6 pages, 1 figure; slight changes to text and figure (which now uses design aLIGO instead of current aLIGO for the combined eLISA-aLIGO costraints), conclusions unchanged. Matches version accepted by PRL
An open-source, end-to-end workflow for multidimensional photoemission spectroscopy
Creators: name: Xian, R. Patrick
name: Acremann, Yves
name: Agustsson, Steinn Y.
name: Dendzik, Maciej
name: Bühlmann, Kevin
name: Curcio, Davide
name: Kutnyakhov, Dmytro
name: Pressacco, Federico
name: Heber, Michael
name: Dong, Shuo
name: Pincelli, Tommaso
name: Demsar, Jure
name: Wurth, Wilfried
name: Hofmann, Philip
name: Wolf, Martin
name: Scheidgen, Markus
name: Rettig, Laurenz
name: Ernstorfer, Ralph
Publisher: name: Humboldt-Universität zu Berlin
Year: 2020
Subjects: subject: Characterization and analytical techniques
subject: Electronic properties and materials
subject: 530 Physik

description: Characterization of the electronic band structure of solid state materials is routinely performed using photoemission spectroscopy. Recent advancements in short-wavelength light sources and electron detectors give rise to multidimensional photoemission spectroscopy, allowing parallel measurements of the electron spectral function simultaneously in energy, two momentum components and additional physical parameters with single-event detection capability. Efficient processing of the photoelectron event streams at a rate of up to tens of megabytes per second will enable rapid band mapping for materials characterization. We describe an open-source workflow that allows user interaction with billion-count single-electron events in photoemission band mapping experiments, compatible with beamlines at 3rd and 4rd generation light sources and table-top laser-based setups. The workflow offers an end-to-end recipe from distributed operations on single-event data to structured formats for downstream scientific tasks and storage to materials science database integration. Both the workflow and processed data can be archived for reuse, providing the infrastructure for documenting the provenance and lineage of photoemission data for future high-throughput experiments.
Stellar populations and Star Formation History of the Metal-Poor Dwarf Galaxy DDO 68
Creators: name: Sacchi, E.
name: Annibali, F.
name: Cignoni, M.
name: Aloisi, A.
name: Sohn, T.
name: Tosi, M.
name: van der Marel, R. P.
name: Grocholski, A. J.
name: James, B.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the star formation history of the extremely metal-poor dwarf galaxy DDO 68, based on our photometry with the Advanced Camera for Surveys. With a metallicity of only $12+\log(O/H)=7.15$ and a very isolated location, DDO 68 is one of the most metal-poor galaxies known. It has been argued that DDO 68 is a young system that started forming stars only $\sim 0.15$ Gyr ago. Our data provide a deep and uncontaminated optical color-magnitude diagram that allows us to disprove this hypothesis, since we find a population of at least $\sim 1$ Gyr old stars. The star formation activity has been fairly continuous over all the look-back time. The current rate is quite low, and the highest activity occurred between 10 and 100 Myr ago. The average star formation rate over the whole Hubble time is $\simeq 0.01$ M$_{\odot}$ yr$^{-1}$, corresponding to a total astrated mass of $\simeq 1.3 \times 10^8$ M$_{\odot}$. Our photometry allows us to infer the distance from the tip of the red giant branch, $D = 12.08 \pm 0.67$ Mpc; however, to let our synthetic color-magnitude diagram reproduce the observed ones we need a slightly higher distance, $D=12.65$ Mpc, or $(m-M)_0 = 30.51$, still inside the errors of the previous determination, and we adopt the latter. DDO 68 shows a very interesting and complex history, with its quite disturbed shape and a long Tail probably due to tidal interactions. The star formation history of the Tail differs from that of the main body mainly for an enhanced activity at recent epochs, likely triggered by the interaction.
description: 18 pages, 30 figures, accepted for publication in The Astrophysical Journal
"Amplifying unheard voices in Digital Humanities: an OpenMethods edit-a-thon" (Slides)
Creators: name: Tóth-Czifra, Erzsébet
name: Horváth, Alíz
name: Nunn, Christopher
name: Wuttke, Ulrike
Publisher: name: Zenodo
Year: 2023
Subjects: OpenMethods
multilingual
digital humanities
metablog
scholarly communication

description: Slides used for the OpenMethods edit-a-thon during DH2023 Graz, 10.07.2023 Facilitators: Alíz Horvath, Christopher Nunn, Ulrike Wuttke.  Tóth-Czifra, Erzsébet, Wuttke, Ulrike, Horváth, Alíz, Nunn, Christopher: “Amplifying unheard voices in Digital Humanities: an OpenMethods edit-a-thon”, in: Baillot, Anne, Tasovac, Toma, Scholger, Walter, & Vogeler, Georg. (2023, July 1). Digital Humanities 2023: Book of Abstracts. Digital Humanities 2023. Collaboration as Opportunity. (DH2023), Graz, Austria, p. 26-27, https://doi.org/10.5281/zenodo.7961822
description: OpenMethods is sustained by DARIAH-EU.
Connections in sub-Riemannian geometry of parallelizable distributions
Creators: name: Youssef, Nabil L.
name: Taha, Ebtsam H.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Differential Geometry (math.DG)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 53C17, 58A30, 53C05

description: The notion of a parallelizable distribution has been introduced and investigated. A non-integrable parallelizable distribution carries a natural sub-Riemannian structure. The geometry of this structure has been studied from the bi-viewpoint of absolute parallelism geometry and sub-Riemannian geometry. Two remarkable linear connections have been constructed on a sub-Riemannian parallelizable distribution, namely, the Weitzenböck connection and the sub-Riemannian connection. The obtained results have been applied to two concrete examples: the spheres $S^3$ and $S^7$.
description: La TeX file, 11 pages, the paper is reduced
Diphoton resonance confronts dark matter
Creators: name: Choi, Soo-Min
name: Kang, Yoo-Jin
name: Lee, Hyun Min
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: As an interpretation of the 750 GeV diphoton excesses recently reported by both ATLAS and CMS collaborations, we consider a simple extension of the Standard Model with a Dirac fermion dark matter where a singlet complex scalar field mediates between dark matter and SM particles via effective couplings to SM gauge bosons and/or Higgs-portal. In this model, we can accommodate the diphoton events through the direct and/or cascade decays of pseudo-scalar and real scalar partners of the complex scalar field. We show that mono-jet searches and gamma-ray observations are complementary in constraining the region where the width of the diphoton resonance can be enhanced due to the couplings of the resonance to dark matter and the correct relic density is obtained. In the case of cascade decay of the resonance, the effective couplings of singlet scalars can be smaller, but the model is still testable by the future discrimination between single photon and photon-jet at the LHC as well as the gamma-ray searches for the cascade annihilation of dark matter.
description: 30 pages, 10 figures, To appear in Journal of High Energy Physics
Evaluating efficiency and robustness in cilia design
Creators: name: Guo, Hanliang
name: Kanso, Eva
Publisher: name: arXiv
Year: 2015
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Motile cilia are used by many eukaryotic cells to transport flow. Cilia-driven flows are important to many physiological functions, yet a deep understanding of the interplay between the mechanical structure of cilia and their physiological functions in healthy and diseased conditions remains elusive. For developing such understanding, one needs a quantitative framework for assessing cilia performance and robustness when subject to perturbations in the cilia apparatus. Here, we link cilia design (beating patterns) to function (flow transport) in the context of experimentally- and theoretically-derived cilia models. We particularly examine the optimality and robustness of cilia design. Optimality refers to efficiency of flow transport, while robustness is defined as low sensitivity to variations in the design parameters. We find that suboptimal designs can be more robust than optimal ones. That is, designing for the most efficient cilium does not guarantee robustness. These findings have significant implications on the understanding of cilia design in artificial and biological systems.
description: 10 pages, 8 figures
Making use of SEER estimates in the context of cancer screening
Creators: name: Mayer, Martin
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 420204
subject: Epidemiological methods
classificationCode: 490501
subject: Applied statistics
classificationCode: 490502
subject: Biostatistics
classificationCode: 420306
subject: Health care administration
classificationCode: 420299
subject: Epidemiology not elsewhere classified

description: As described by Welch and Passow [1], estimates from the Surveillance, Epidemiology, and End Results Program (SEER) for screen-eligible cancers are a weighted average among people who are screened and people who are not screened. This inherent truth allows one to obtain estimates for each of these groups using the simple methods they describe [1]. Their simplicity is arguably a strength, and indeed, these methods are also easily demonstrable algebraically. What follows is a basic use and adaptation of these methods; in terms of adaptation, the present writing also considers implications of the relative effect estimate being a hazard ratio (HR) or odds ratio (OR) instead of a relative risk (RR). Although Welch and Passow provide a very accessible description [1], the discussion herein proceeds in a stepwise manner for clarity.This document was composed primarily as a supplement to accompany my comment on the guideline from the American College of Physicians (ACP) for colorectal cancer (CRC) screening [2], more specifically their discussion of the modeling by the United States Preventive Services Taskforce (USPSTF) for their guideline on CRC screening. However, this document may also be a helpful standalone resource for people interested in using data from SEER in the context of cancer screening.
References:
Welch HG, Passow HJ. Quantifying the benefits and harms of screening mammography. JAMA Intern Med. 2014 Mar;174(3):448-54. doi: 10.1001/jamainternmed.2013.13635.Qaseem A, Harrod CS, Crandall CJ, et al.; Clinical Guidelines Committee of the American College of Physicians. Screening for Colorectal Cancer in Asymptomatic Average-Risk Adults: A Guidance Statement From the American College of Physicians (Version 2). Ann Intern Med. 2023 Aug 1. doi: 10.7326/M23-0779. Epub ahead of print.
(Minor edits from original version all pertain to modestly improving the included example. Briefly, these edits include: Improving column spacing/formatting, consolidating the "Proportion" and "Percentage" column into the "Value" column, and adding detail in the footnotes regarding the precise value for the original SEER estimate and how one could incorporate the confidence interval for the relative effect estimate.)
Making use of SEER estimates in the context of cancer screening
Creators: name: Mayer, Martin
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 420204
subject: Epidemiological methods
classificationCode: 490501
subject: Applied statistics
classificationCode: 490502
subject: Biostatistics
classificationCode: 420306
subject: Health care administration
classificationCode: 420299
subject: Epidemiology not elsewhere classified

description: As described by Welch and Passow [1], estimates from the Surveillance, Epidemiology, and End Results Program (SEER) for screen-eligible cancers are a weighted average among people who are screened and people who are not screened. This inherent truth allows one to obtain estimates for each of these groups using the simple methods they describe [1]. Their simplicity is arguably a strength, and indeed, these methods are also easily demonstrable algebraically. What follows is a basic use and adaptation of these methods; in terms of adaptation, the present writing also considers implications of the relative effect estimate being a hazard ratio (HR) or odds ratio (OR) instead of a relative risk (RR). Although Welch and Passow provide a very accessible description [1], the discussion herein proceeds in a stepwise manner for clarity.This document was composed primarily as a supplement to accompany my comment on the guideline from the American College of Physicians (ACP) for colorectal cancer (CRC) screening [2], more specifically their discussion of the modeling by the United States Preventive Services Taskforce (USPSTF) for their guideline on CRC screening. However, this document may also be a helpful standalone resource for people interested in using data from SEER in the context of cancer screening.
References:
Welch HG, Passow HJ. Quantifying the benefits and harms of screening mammography. JAMA Intern Med. 2014 Mar;174(3):448-54. doi: 10.1001/jamainternmed.2013.13635.Qaseem A, Harrod CS, Crandall CJ, et al.; Clinical Guidelines Committee of the American College of Physicians. Screening for Colorectal Cancer in Asymptomatic Average-Risk Adults: A Guidance Statement From the American College of Physicians (Version 2). Ann Intern Med. 2023 Aug 1. doi: 10.7326/M23-0779. Epub ahead of print.
Equilibrium phase behavior of the square-well linear microphase-forming model
Creators: name: Zhuang, Yuan
name: Charbonneau, Patrick
Publisher: name: arXiv
Year: 2016
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We have recently developed a simulation approach to calculate the equilibrium phase diagram of particle-based microphase formers. Here, this approach is used to calculate the phase behavior of the square-well linear model for different strengths and ranges of the linear long-range repulsive component. The results are compared with various theoretical predictions for microphase formation. The analysis further allows us to better understand the mechanism for microphase formation in colloidal suspensions.
Phase Transitions in a Bose-Hubbard Model with Cavity-Mediated Global-Range Interactions
Creators: name: Dogra, N.
name: Brennecke, F.
name: Huber, S. D.
name: Donner, T.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We study a system with competing short- and global-range interactions in the framework of the Bose-Hubbard model. Using a mean-field approximation we obtain the phase diagram of the system and observe four different phases: a superfluid, a supersolid, a Mott insulator and a charge density wave, where the transitions between the various phases can be either of first or second order. We qualitatively support these results using Monte-Carlo simulations. An analysis of the low-energy excitations shows that the second-order phase transition from the charge density wave to the supersolid is associated with the softening of particle- and hole-like excitations which give rise to a gapless mode and an amplitude Higgs mode in the supersolid phase. This amplitude Higgs mode is further transformed into a roton mode which softens at the supersolid to superfluid phase transition.
Selvaggi, Filippo: Causalità e Indeterminismo
Creators: name: Büchel, W.
Publisher: name: Scholastik
Year: 1970

description: Scholastik, Bd. 40 Nr. 4 (1965): Scholastik. Vierteljahresschrift für Theologie und Philosophie, Band 40, Heft 4
A group theoretical approach to structural transitions of icosahedral quasicrystals and point arrays
Creators: name: Zappa, Emilio
name: Dykeman, Eric C.
name: Geraets, James A.
name: Twarock, Reidun
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mathematical Physics (math-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In this paper we describe a group theoretical approach to the study of structural transitions of icosahedral quasicrystals and point arrays. We apply the concept of Schur rotations, originally proposed by Kramer, to the case of aperiodic structures with icosahedral symmetry; these rotations induce a rotation of the physical and orthogonal spaces invariant under the icosahedral group, and hence, via the cut-and-project method, a continuous transformation of the corresponding model sets. We prove that this approach allows for a characterisation of such transitions in a purely group theoretical framework, and provide explicit computations and specific examples. Moreover, we prove that this approach can be used in the case of finite point sets with icosahedral symmetry, which have a wide range of applications in carbon chemistry (fullerenes) and biology (viral capsids).
description: New version, to appear in J. Phys. A
Persönliches Datenmanagement
Creators: name: Trautwein-Bruns, Ute
name: Moser, Mario
name: Neumann, Janna
name: Hecker, David
Publisher: name: Zenodo
Year: 2022
Subjects: Forschungsdatenmanagement
Gute wissenschaftliche Praxis
Datenorganisation
Dateibenennung
Ordnungssystem
Seicherorte
Archivierung

description: Welche Aufgaben habe ich als Forscher beim Forschungsdaten-management zu beachten? Was muss ich persönlich tun und wofür bin ich verantwortlich? Hier werden anhand wichtiger Meilensteine die Aufgaben eines guten Datenmanagements kurz dargestellt.
description: Die Autorinnen und Autoren möchten sich bei Bund, Ländern und bei der Gemeinsamen Wissenschaftskonferenz (GWK) für die Förderung und Unterstützung im Rahmen des Konsortiums NFDI4Ing bedanken. Gefördert durch die Deutsche Forschungsgemeinschaft (DFG) - Projektnummer 442146713.
Parametric initial conditions for core-collapse supernova simulations
Creators: name: Suwa, Yudai
name: Müller, Ewald
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We investigate a method to construct parametrized progenitor models for core-collapse supernova simulations. Different from all modern core-collapse supernova studies, which rely on progenitor models from stellar evolution calculations, we follow the methodology of Baron & Cooperstein (1990) to construct initial models. Choosing parametrized spatial distributions of entropy and electron fraction as a function of mass coordinate and solving the equation of hydrostatic equilibrium, we obtain the initial density structures of our progenitor models. First, we calculate structures with parameters fitting broadly the evolutionary model s11.2 of Woosley et al. (2002). We then demonstrate the reliability of our method by performing general relativistic hydrodynamic simulations in spherical symmetry with the isotropic diffusion source approximation to solve the neutrino transport. Our comprehensive parameter study shows that initial models with a small central entropy ($\lesssim 0.4\,k_B$ nucleon$^{-1}$) can explode even in spherically symmetric simulations. Models with a large entropy ($\gtrsim 6\,k_B$ nucleon$^{-1}$) in the Si/O layer have a rather large explosion energy ($\sim 4\times 10^{50}$ erg) at the end of the simulations, which is still rapidly increasing.
description: 12 pages, 11 figures, 5 tables; accepted for publication in MNRAS
Jaeger, Lydia, Wissenschaft ohne Gott?
Creators: name: Krüger, Ralf-Dieter
Publisher: name: Jahrbuch für evangelikale Theologie
Year: 2025

description: 1823087620
description: Jahrbuch für evangelikale Theologie, V. 22 (2008): Jahrbuch für evangelikale Theologie, Band 22