cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Cluster Monte Carlo: Scaling of Systematic Errors in the 2D Ising Model
Creators: name: Shchur, Lev N.
name: Blöte, Henk W. J.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We present an extensive analysis of systematic deviations in Wolff cluster simulations of the critical Ising model, using random numbers generated by binary shift registers. We investigate how these deviations depend on the lattice size, the shift-register length, and the number of bits correlated by the production rule. They appear to satisfy scaling relations.
description: 4 pages, 1 table, 4 figures, revtex (incompatible with Latex2e) plus epsf.sty and amssymb.sty. email: lev@landau.ac.ru
title: Entwicklung eines longitudinalen Curriculums Patientensicherheit für Medizinstudierende – Standortbestimmung und Bedarfsanalyse anhand des GMA-Lernzielkatalogs
Creators: name: Kiesewetter, Isabel
name: Zwißler, Bernhard
name: Fischer, Martin R.
name: Baschnegger, Heiko
name: Krög, Kristin
Publisher: name: German Medical Science GMS Publishing House
Year: 2019
Subjects: subject: 610 Medical sciences; Medicine

description: Hintergrund: In den letzten Jahren haben die Themen ‚Fehler in der Medizin‘ und ‚Patientensicherheit‘ in Deutschland zunehmend an Bedeutung gewonnen. Patientensicherheit wirkt als Thema in alle Bereiche der Medizin hinein und betrifft multiprofessionell und interdisziplinär[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Gemeinsame Jahrestagung der Gesellschaft für Medizinische Ausbildung (GMA), des Arbeitskreises zur Weiterentwicklung der Lehre in der Zahnmedizin (AKWLZ) und der Chirurgischen Arbeitsgemeinschaft Lehre (CAL)
Supplementary Figure 7 from Phylogenomics of Aplacophora (Mollusca, Aculifera) and a solenogaster without a foot
Creators: name: Kocot, Kevin M.
name: Todt, Christiane
name: Mikkelsen, Nina T.
name: Halanych, Kenneth M.
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: 60301 Animal Systematics and Taxonomy
subject: FOS: Biological sciences
subject: 60310 Plant Systematics and Taxonomy

description: Recent molecular phylogenetic investigations strongly supported the placement of the shell-less, worm-shaped aplacophoran molluscs (Solenogastres and Caudofoveata) and chitons (Polyplacophora) in a clade called Aculifera, which is the sister taxon of all other molluscs. Thus, understanding the evolutionary history of aculiferan molluscs is important for understanding early molluscan evolution. In particular, fundamental questions about evolutionary relationships within Aplacophora have long been unanswered. Here, we supplemented the paucity of available data with transcriptomes from 25 aculiferans and conducted phylogenomic analyses on datasets with up to 525 genes and 75 914 amino acid positions. Our results indicate that aplacophoran taxonomy requires revision as several traditionally recognized groups are non-monophyletic. Most notably, Cavibelonia, the solenogaster taxon defined by hollow sclerites, is polyphyletic, suggesting parallel evolution of hollow sclerites in multiple lineages. Moreover, we describe Apodomenia enigmatica sp. nov., a bizarre new species that appears to be a morphological intermediate between Solenogastres and Caudofoveata. This animal is not a missing link, however; molecular and morphological studies show that it is a derived solenogaster that lacks a foot, mantle cavity and radula. Taken together, these results shed light on the evolutionary history of Aplacophora and reveal a surprising degree of morphological plasticity within the group.
Bloch oscillation of elastic waves in the graded lattice of 3D-printed hollow elliptical cylinders
Creators: name: Kim, Hyunryung
name: Shi, Xiaotian
name: Kim, Eunho
name: Yang, Jinkyu
Publisher: name: arXiv
Year: 2018
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: We study the Bloch oscillation of elastic waves in a chain composed of hollow elliptical cylinders (HECs). These HECs are 3D-printed in different wall thicknesses and are arranged to form a graded chain. We find that the frequency band structure of this lattice can be manipulated in a way to create a narrow strip of transmission range sandwiched between slanted stop bands. This enables the trapping of elastic waves at a specific location of the chain, which depends on the input frequency of the propagating elastic waves. This elastic Bloch oscillation in a tailorable 3D-printed system enables the control of energy localization in solids, potentially leading to engineering applications for vibration filtering, energy harvesting, and structural health monitoring.
description: 18 pages, 8 figures, 2 appendices
Interaction of Hawking radiation with static sources outside a Schwarzschild black hole
Creators: name: Higuchi, Atsushi
name: Matsas, George E. A.
name: Sudarsky, Daniel
Publisher: name: arXiv
Year: 1998
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We show that the response rate of (i) a static source interacting with Hawking radiation of massless scalar field in Schwarzschild spacetime (with the Unruh vacuum) and that of (ii) a uniformly accelerated source with the same proper acceleration in Minkowski spacetime (with the Minkowski vacuum) are equal. We show that this equality will not hold if the Unruh vacuum is replaced by the Hartle-Hawking vacuum. It is verified that the source responds to the Hawking radiation near the horizon as if it were at rest in a thermal bath in Minkowski spacetime with the same temperature. It is also verified that the response rate in the Hartle-Hawking vacuum approaches that in Minkowski spacetime with the same temperature far away from the black hole. Finally, we compare our results with others in the literature.
description: 18 pages (REVTEX)
Skyrmions and clustering in light nuclei
Creators: name: Naya, Carlos
name: Sutcliffe, Paul
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: One of the outstanding problems in modern nuclear physics is to determine the properties of nuclei from the fundamental theory of the strong force, quantum chromodynamics (QCD). Skyrmions offer a novel approach to this problem by considering nuclei as solitons of a low energy effective field theory obtained from QCD. Unfortunately, the standard theory of Skyrmions has been plagued by two significant problems, in that it yields nuclear binding energies that are an order of magnitude larger than experimental nuclear data, and it predicts intrinsic shapes for nuclei that fail to match the clustering structure of light nuclei. Here we show that extending the standard theory of Skyrmions, by including the next lightest subatomic meson particles traditionally neglected, dramatically improves both these aspects. We find Skyrmion clustering that now agrees with the expected structure of light nuclei, with binding energies that are much closer to nuclear data.
description: 5 pages, 3 figures. To appear in PRL
Testing the Evolutionary Link between Type 1 and Type 2 Quasars with Measurements of the Interstellar Medium
Creators: name: Shangguan, Jinyi
name: Ho, Luis C.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: In a popular scenario for the coevolution of massive black holes and galaxies, major mergers of gas-rich galaxies fuel vigorous star formation and obscured (type 2) quasar activity until energy feedback from the active galactic nucleus clears away the gas and dust to reveal an unobscured (type 1) quasar. Under this scenario, the precursor type 2 quasars should be more gas-rich than their type 1 counterparts, and both types of quasars are expected to be gas-deficient relative to normal, star-forming galaxies of similar stellar mass. We test this evolutionary hypothesis by investigating the infrared (~ 1-500 micron) spectral energy distribution of 86 optically selected z < 0.5 type 2 quasars, matched in redshift and [O III] luminosity to a comparison sample of type 1 quasars. Contrary to expectations, the gas content of the host galaxies of type 2 quasars is nearly indistinguishable from that of type 1 quasar hosts, and neither type exhibits the predicted deficit in gas relative to normal galaxies. The gas mass fraction of quasar hosts appears unaffected by the bolometric luminosity of the active nucleus, although their interstellar radiation field is preferentially higher than that of normal galaxies, potentially implicating active galactic nucleus heating of the large-scale galactic dust.
description: 11 figures, 5 tables, accepted for publication in ApJ
A Galactic Plane Defined by the Milky Way HII Region Distribution
Creators: name: Anderson, L. D.
name: Wenger, Trey V.
name: Armentrout, W. P.
name: Balser, Dana S.
name: Bania, T. M.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We develop a framework for a new definition of the Galactic midplane, allowing for tilt (rotation about Galactic azimuth 90deg.), and roll (rotation about Galactic azimuth 0deg.) of the midplane with respect to the current definition. Derivation of the tilt and roll angles also determines the solar height above the midplane. Here we use nebulae from the WISE Catalog of Galactic HII Regions to define the Galactic high-mass star formation (HMSF) midplane. We analyze various subsamples of the WISE catalog and find that all have Galactic latitude scale heights near 0.30deg. and z-distribution scale heights near 30pc. The vertical distribution for small (presumably young) HII regions is narrower than that of larger (presumably old) HII regions (~25pc versus ~40pc), implying that the larger regions have migrated further from their birth sites. For all HII region subsamples and for a variety of fitting methodologies, we find that the HMSF midplane is not significantly tilted or rolled with respect to the currently-defined midplane, and therefore the Sun is near to the HMSF midplane. These results are consistent with other studies of HMSF, but are inconsistent with many stellar studies, perhaps due to asymmetries in the stellar distribution near the Sun. Our results are sensitive to latitude restrictions, and also to the completeness of the sample, indicating that similar analyses cannot be done accurately with less complete samples. The midplane framework we develop can be used for any future sample of Galactic objects to redefine the midplane.
description: Accepted by ApJ
Supplementary Figure 6 from Phylogenomics of Aplacophora (Mollusca, Aculifera) and a solenogaster without a foot
Creators: name: Kocot, Kevin M.
name: Todt, Christiane
name: Mikkelsen, Nina T.
name: Halanych, Kenneth M.
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: 60301 Animal Systematics and Taxonomy
subject: FOS: Biological sciences
subject: 60310 Plant Systematics and Taxonomy

description: Recent molecular phylogenetic investigations strongly supported the placement of the shell-less, worm-shaped aplacophoran molluscs (Solenogastres and Caudofoveata) and chitons (Polyplacophora) in a clade called Aculifera, which is the sister taxon of all other molluscs. Thus, understanding the evolutionary history of aculiferan molluscs is important for understanding early molluscan evolution. In particular, fundamental questions about evolutionary relationships within Aplacophora have long been unanswered. Here, we supplemented the paucity of available data with transcriptomes from 25 aculiferans and conducted phylogenomic analyses on datasets with up to 525 genes and 75 914 amino acid positions. Our results indicate that aplacophoran taxonomy requires revision as several traditionally recognized groups are non-monophyletic. Most notably, Cavibelonia, the solenogaster taxon defined by hollow sclerites, is polyphyletic, suggesting parallel evolution of hollow sclerites in multiple lineages. Moreover, we describe Apodomenia enigmatica sp. nov., a bizarre new species that appears to be a morphological intermediate between Solenogastres and Caudofoveata. This animal is not a missing link, however; molecular and morphological studies show that it is a derived solenogaster that lacks a foot, mantle cavity and radula. Taken together, these results shed light on the evolutionary history of Aplacophora and reveal a surprising degree of morphological plasticity within the group.
MPEC 2025-D38 : 2025 DV
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2025
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2025 DV

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
$SU_q(3)$ corepresentations and bivariate $q$-Krawtchouk polynomials
Creators: name: Bergeron, Geoffroy
name: Koelink, Erik
name: Vinet, Luc
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 33D45, 33D80, 20G42, 81R50, 17B37

description: The matrix elements of unitary $SU_q(3)$ corepresentations, which are analogues of the symmetric powers of the natural repesentation, are shown to be the bivariate $q$-Krawtchouk orthogonal polynomials, thus providing an algebraic interpretation of these polynomials in terms of quantum groups.
description: 14 pages
Revisiting Deniability in Quantum Key Exchange via Covert Communication and Entanglement Distillation
Creators: name: Atashpendar, Arash
name: Policharla, G. Vamsi
name: Rønne, Peter B.
name: Ryan, Peter Y. A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: Cryptography and Security (cs.CR)
subject: Information Theory (cs.IT)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We revisit the notion of deniability in quantum key exchange (QKE), a topic that remains largely unexplored. In the only work on this subject by Donald Beaver, it is argued that QKE is not necessarily deniable due to an eavesdropping attack that limits key equivocation. We provide more insight into the nature of this attack and how it extends to other constructions such as QKE obtained from uncloneable encryption. We then adopt the framework for quantum authenticated key exchange, developed by Mosca et al., and extend it to introduce the notion of coercer-deniable QKE, formalized in terms of the indistinguishability of real and fake coercer views. Next, we apply results from a recent work by Arrazola and Scarani on covert quantum communication to establish a connection between covert QKE and deniability. We propose DC-QKE, a simple deniable covert QKE protocol, and prove its deniability via a reduction to the security of covert QKE. Finally, we consider how entanglement distillation can be used to enable information-theoretically deniable protocols for QKE and tasks beyond key exchange.
description: 16 pages, published in the proceedings of NordSec 2018
Some remarks on a nongeometrical interpretation of gravity and the flatness problem
Creators: name: Nikolic, H.
Publisher: name: arXiv
Year: 1999
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In a nongeometrical interpretation of gravity, the metric $g_{μν}(x)=η_{μν}+Φ_{μν}(x)$ is interpreted as an {\em effective} metric, whereas $Φ_{μν}(x)$ is interpreted as a fundamental gravitational field, propagated in spacetime which is actually flat. Some advantages and disadvantages of such an interpretation are discussed. The main advantage is a natural resolution of the flatness problem.
description: 6 pages, latex
Pterophorus candidalis Walker 1864
Creators: name: Mbata, Keith J.
name: Prins, Jurate De
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Pterophoridae
Pterophorus
Pterophorus candidalis

description: Pterophorus candidalis Walker, 1864b
COMMON NAME(S): Plume moth or Pterophorid moth.
SYNONYM(S): None.
IUCN STATUS: Not Evaluated (NE).
DISTRIBUTION: Benin, Burundi, Cameroon, Central African Republic, Chad, Côte d’Ivoire, Democratic Republic of Congo, Ethiopia, Gabon, Ghana, Kenya, Liberia, Republic of Congo, Malawi, Mozambique, Namibia, Nigeria, Sierra Leone, South Africa, Tanzania, Uganda, Zambia, Zimbabwe.
LOCALITY IN ZAMBIA: Isoka, in Muchinga Province.
LARVAL HOSTPLANT(S): Unknown.
SOURCES: Catalogue of Life 2017; De Prins & De Prins 2022; IUCN Red List of Threatened Species 2017-1; Pinhey 1975.
Genus Walsinghamiella Berg, 1898
description: Published as part of Mbata, Keith J. & Prins, Jurate De, 2023, Annotated checklist of moths of Zambia (Insecta: Lepidoptera), pp. 1-503 in Zootaxa 5354 (1) on page 40, DOI: 10.11646/zootaxa.5354.1.1, http://zenodo.org/record/10130434
MPEC 2025-D39 : 2025 DW
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2025
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2025 DW

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Linear Schrödinger equation with temporal evolution for front induced transitions
Creators: name: Gaafar, Mahmoud A.
name: Renner, Hagen
name: Petrov, Alexander Y.
name: Eich, Manfred
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The nonlinear Schrödinger equation based on slowly varying approximation is usually applied to describe the pulse propagation in nonlinear waveguides. However, for the case of the front induced transitions (FITs), the pump effect is well described by the dielectric constant perturbation in space and time. Thus, a linear Schrödinger equation can be used. Also, in waveguides with weak dispersion the spatial evolution of the pulse temporal profile is usually tracked. Such a formulation becomes impossible for optical systems for which the group index or higher dispersion terms diverge as is the case near the band edge of photonic crystals. For the description of FITs in such systems a linear Schrödinger equation can be used where temporal evolution of the pulse spatial profile is tracked instead of tracking the spatial evolution. This representation provides the same descriptive power and can easily deal with zero group velocities. Furthermore, the Schrödinger equation with temporal evolution can describe signal pulse reflection from both static and counter-propagating fronts, in contrast to the Schrödinger equation with spatial evolution which is bound to forward propagation. Here, we discuss the two approaches and demonstrate the applicability of the spatial evolution for the system close to the band edge where the group velocity vanishes by simulating intraband indirect photonic transitions.
Breaking time reversal symmetry in chaotic driven Rydberg atoms
Creators: name: Sacha, Krzysztof
name: Zakrzewski, Jakub
name: Delande, Dominique
Publisher: name: arXiv
Year: 2000
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We consider the dynamics of Rydberg states of the hydrogen atom driven by a microwave field of elliptical polarization, with a possible additional static electric field. We concentrate on the effect of a resonant weak field - whose frequency is close to the Kepler frequency of the electron around the nucleus - which essentially produces no ionization of the atom, but completely mixes the various states inside an hydrogenic manifold of fixed principal quantum number. For sufficiently small fields, a perturbative approach (both in classical and quantum mechanics) is relevant. For some configurations of the fields, the classical secular motion (i.e. evolution in time of the elliptical electronic trajectory) is shown to be predominantly chaotic. Changing the orientation of the static field with respect to the polarization of the microwave field allows us to investigate the effect of generalized time-reversal symmetry breaking on the statistical properties of energy levels.
description: 26 pages, 11 figures, accepted for publication in Ann. Phys. (N.Y.)
Compression of Recurrent Neural Networks for Efficient Language Modeling
Creators: name: Grachev, Artem M.
name: Ignatov, Dmitry I.
name: Savchenko, Andrey V.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computation and Language (cs.CL)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Recurrent neural networks have proved to be an effective method for statistical language modeling. However, in practice their memory and run-time complexity are usually too large to be implemented in real-time offline mobile applications. In this paper we consider several compression techniques for recurrent neural networks including Long-Short Term Memory models. We make particular attention to the high-dimensional output problem caused by the very large vocabulary size. We focus on effective compression methods in the context of their exploitation on devices: pruning, quantization, and matrix decomposition approaches (low-rank factorization and tensor train decomposition, in particular). For each model we investigate the trade-off between its size, suitability for fast inference and perplexity. We propose a general pipeline for applying the most suitable methods to compress recurrent neural networks for language modeling. It has been shown in the experimental study with the Penn Treebank (PTB) dataset that the most efficient results in terms of speed and compression-perplexity balance are obtained by matrix decomposition techniques.
description: 25 pages, 3 tables, 4 figures
Additional file 1: of Effects of a footwear intervention on foot pain and disability in people with gout: a randomised controlled trial
Creators: name: Frecklington, Mike
name: Dalbeth, Nicola
name: McNair, Peter
name: Morpeth, Trish
name: Vandal, Alain
name: Gow, Peter
name: Rome, Keith
Publisher: name: figshare
Year: 2019
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Marine Biology
subject: Cancer
subject: Science Policy

description: Control group footwear characteristics. (DOCX 16 kb)
Keyword Optimization in Sponsored Search Advertising: A Multi-Level Computational Framework
Creators: name: Yang, Yanwu
name: Jansen, Bernard J.
name: Yang, Yinghui
name: Guo, Xunhua
name: Zeng, Daniel
Publisher: name: arXiv
Year: 2022
Subjects: subject: Information Retrieval (cs.IR)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences
subject: I.2.6
subject: 68Txx

description: In sponsored search advertising, keywords serve as an essential bridge linking advertisers, search users and search engines. Advertisers have to deal with a series of keyword decisions throughout the entire lifecycle of search advertising campaigns. This paper proposes a multi-level and closed-form computational framework for keyword optimization (MKOF) to support various keyword decisions. Based on this framework, we develop corresponding optimization strategies for keyword targeting, keyword assignment and keyword grouping at different levels (e.g., market, campaign and adgroup). With two real-world datasets obtained from past search advertising campaigns, we conduct computational experiments to evaluate our keyword optimization framework and instantiated strategies. Experimental results show that our method can approach the optimal solution in a steady way, and it outperforms two baseline keyword strategies commonly used in practice. The proposed MKOF framework also provides a valid experimental environment to implement and assess various keyword strategies in sponsored search advertising.
description: 21 pages, 3 figures,1 table
Supplementary Table and Figures from Bioinspired synthesis of SnO crosses as backbone in artificial sponges
Creators: name: Jahnke, Timotheus
name: Kilper, Stefan
name: Knöller, Andrea
name: Brümmer, Franz
name: Widenmeyer, Marc
name: Rothenstein, Dirk
name: Zaklina Burghard
name: Bill, Joachim
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: 30399 Macromolecular and Materials Chemistry not elsewhere classified
subject: FOS: Chemical sciences

description: The distinct electronic properties, including p-type semiconducting and a wide optical band gap, renders SnO suitable for applications such as microelectronic devices, gas sensors and electrodes. However, the synthesis of SnO is rather challenging due to the instability of the oxide, which is usually obtained as a byproduct of SnO2 fabrication. In this work, we developed a bioinspired synthesis, based on a hydrothermal approach, for the direct production of SnO nanoparticles. The amount of mineralizer, inducing the precipitation, was identified, which supports a template-free formation of the nanosized SnO particles at low temperature and mild chemical conditions. Moreover, the SnO nanoparticles exhibit a shape of unique three-dimensional crosses similar to the calcite crosses present in the calcareous sponges. We demonstrated that SnO crosses are evenly distributed and embedded in an organic scaffold by an ice-templating approach, in this way, closely mimicking the structure of calcareous sponges. Such scaffolds, reinforced by an active material, here SnO, could be used as filters, sensors or electrodes, where a high surface area and good accessibility are essential.This article is part of the theme issue ‘Bioinspired materials and surfaces for green science and technology (part 2)’.
On the asymptotics of Maronna's robust PCA
Creators: name: Draskovic, Gordana
name: Breloy, Arnaud
name: Pascal, Frederic
Publisher: name: arXiv
Year: 2018
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: The eigenvalue decomposition (EVD) parameters of the second order statistics are ubiquitous in statistical analysis and signal processing. Notably, the EVD of robust scatter $M$-estimators is a popular choice to perform robust probabilistic PCA or other dimension reduction related applications. Towards the goal of characterizing the behavior of these quantities, this paper proposes new asymptotics for the EVD parameters (i.e. eigenvalues, eigenvectors and principal subspace) of the scatter $M$-estimator in the context of complex elliptically symmetric distributions. First, their Gaussian asymptotic distribution is obtained by extending standard results on the sample covariance matrix in a Gaussian context. Second, their convergence rate towards the EVD parameters of a Gaussian-Core Wishart Equivalent is derived. This second result represents the main contribution in the sense that it quantifies when it is acceptable to directly plug-in well-established results on the EVD of Wishart-distributed matrix for characterizing the EVD of $M$-estimators. Eventually, some examples (low-rank adaptive filtering and Intrinsic bias analysis) are provided to illustrate where the obtained results can be leveraged.
title: PV data of SmartFactoryOWL over one week (25.11.2024 to 01.12.2024)
Creators: name: Arbesun Perez, Nissrin
name: Zelba, Franziska
Publisher: name: Fraunhofer-Gesellschaft
Year: 2025
Subjects: subject: production
subject: photovoltaic
subject: energy data
subject: DDC::600 Technik, Medizin, angewandte Wissenschaften::670 Industrielle Fertigung::670 Industrielle Fertigung

description: The data set contains the power generated by a PV system over one week. The PV system has a total output of 55kWp and is located on the roof of the SmartFactoryOWL in Lemgo. The data was recorded with an interval of 5 minutes.
Impact of magnetic nanoparticles on the Casimir pressure in three-layer systems
Creators: name: Klimchitskaya, G. L.
name: Mostepanenko, V. M.
name: Nepomnyashchaya, E. K.
name: Velichko, E. N.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The Casimir pressure is investigated in three-layer systems where the intervening stratum possesses magnetic properties. This subject is gaining in importance in connection with ferrofluids and their use in various microelectromechanical devices. We present general formalism of the Lifshitz theory adapted to the case of ferrofluid sandwiched between two dielectric walls. The Casimir pressure is computed for the cases of kerosene- and water-based ferrofluids containing a 5% fraction of magnetite nanoparticles with different diameters between silica glass walls. For this purpose, we have found the dielectric permittivities of magnetite and kerosene along the imaginary frequency axis employing the available optical data and used the familiar dielectric properties of silica glass and water, as well as the magnetic properties of magnetite. We have also computed the relative difference in the magnitudes of the Casimir pressure which arises on addition of magnetite nanoparticles to pure carrier liquids. It is shown that for nanoparticles of 20 nm diameter at 2 micrometer separation between the walls this relative difference exceeds 140% and 25% for kerosene- and water-based ferrofluids, respectively. An interesting effect is found that at a fixed separation between the walls an addition of magnetite nanoparticles with some definite diameter makes no impact on the Casimir pressure. The physical explanation for this effect is provided. Possible applications of the obtained results are discussed.
description: 20 pages, 7 figures; accepted for publication in Phys. Rev. B
title: Rückkehr der Lehrdichtung?
title: Zur Konjunktur des Naturgedichts in der deutschsprachigen Ge-genwartslyrik im Kontext seiner Vorgeschichte
titleType: Subtitle
Creators: name: Burdorf, Dieter
Publisher: name: Trier University
Year: 2019
Subjects: subject: Poetik
subject: Erkenntnis
subject: Lehrdichtung
subject: poetic knowledge
subject: poetic notion
subject: didactic poetry

description: The paper gives a survey on the German tradition of didactic poems and nature poems from the 18th century to the immediate present. The early modern pattern of nature as a peaceful Arcadia, the enlightenment pattern of a nature getting sense by God in every detail, and the romanticist pattern of a nature that is impenetrable but nevertheless a permanent object of longing (“Sehnsucht”) are proved to be models of nature poetry that are the most important reference points up to now. The poems about nature written in the early 21st century refer to these models as well as to their destruction and deconstruction by the modernists and avant-gardes of the 20th century. The most convincing poets devoting their attention to nature today play with these traditions with artistic perfection and in an ironical manner at the same time. Often, annotations, essays, and talks on nature are accompanying the lyrical texts. In the present, female writers are the authors of some of the best poems about nature. In several poems, the relationship between love and nature appears under new perspectives. Other important subjects are the landscapes of far-away countries.
Data stewardship of next-generation data products and services related to ESFRI and other astrophysics infrastructures
Creators: name: Allen, Mark
name: Amodeo, Stefania
name: Bonnarel, François
name: Molinaro, Marco
name: Genova, Francoise
name: Romaniello, Martino
name: Heinl, Hendrik
name: Schaaff, André
name: Lesteven, Soizick
Publisher: name: Zenodo
Year: 2021
Subjects: Astrophysics
Data Stewardship

description: Poster for the LISA IX conference 2021
On the Feasibility of Detecting Satellites of Extrasolar Planets via Microlensing
Creators: name: Han, Cheongho
name: Han, Wonyong
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Although many methods of detecting extra-solar planets have been proposed and successful implementation of some of these methods enabled a rapidly increasing number of exoplanet detections, little has been discussed about the method of detecting satellites around exoplanets. In this paper, we test the feasibility of detecting satellites of exoplanets via microlensing. For this purpose, we investigate the effect of satellites in the magnification pattern near the region of the planet-induced perturbations by performing realistic simulations of Galactic bulge microlensing events. From this investigation, we find that although satellites can often cause alterations of magnification patterns, detecting satellite signals in lensing light curves will be very difficult because the signals are seriously smeared out by the severe finite source effect even for events involved with source stars with small angular radii.
description: total 6 pages, including 2 figures, ApJ, submitted
Experimental evidence for a spin-Peierls-transition in $α'-NaV_2O_5$
Creators: name: Weiden, M.
name: Hauptmann, R.
name: Geibel, C.
name: Steglich, F.
name: Fischer, M.
name: Lemmens, P.
name: Güntherodt, G.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present the first measurements of magnetisation and Raman light scattering on $α'-NaV_2O_5$ single crystals. Below 34 K, we observe a pronounced isotropic decrease of the susceptibility indicating the opening of a spin gap. The transition temperature is slightly field dependent. Raman experiments reveal a crystallographic distortion at the transition. Our results clearly establish $α'-NaV_2O_5$ to be the second inorganic spin-Peierls system.
description: 8 pages, 2 eps figures. To be published in Z. Phys. B (1997)
Additional file 1 of Citizens’ perspectives on relocating care: a scoping review
Creators: name: Damen, L. J.
name: Van Tuyl, L. H. D.
name: Korevaar, J. C.
name: Knottnerus, B. J.
name: De Jong, J. D.
Publisher: name: figshare
Year: 2024
Subjects: Biotechnology
Cancer
Science Policy
Mental Health

description: Additional file 1: Appendix A. Search string Pubmed.
Evolution of Magnetic Double Helix and Quantum Criticality near a Dome of Superconductivity in CrAs
Creators: name: Matsuda, M.
name: Lin, F. K.
name: Yu, R.
name: Cheng, J. -G.
name: Wu, W.
name: Sun, J. P.
name: Zhang, J. H.
name: Sun, P. J.
name: Matsubayashi, K.
name: Miyake, T.
name: Kato, T.
name: Yan, J. -Q.
name: Stone, M. B.
name: Si, Qimiao
name: Luo, J. L.
name: Uwatoko, Y.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: At ambient pressure CrAs undergoes a first-order transition into a double-helical magnetic state at TN = 265 K, which is accompanied by a structural transition. The recent discovery of pressure-induced superconductivity in CrAs makes it important to clarify the nature of quantum phase transitions out of its coupled structural/helimagnetic order. Here we show, via neutron diffraction on the single-crystal CrAs under hydrostatic pressure (P), that the combined order is suppressed at Pc ~ 10 kbar, near which bulk superconductivity develops with a maximal transition temperature Tc ~ 2 K. We further show that the coupled order is also completely suppressed by phosphorus doping in CrAs1-xPx at a critical xc ~ 0.05, above which inelastic neutron scattering evidenced persistent antiferromagnetic correlations, providing a possible link between magnetism and superconductivity. In line with the presence of antiferromagnetic fluctuations near Pc (xc), the A coefficient of the quadratic temperature dependence of resistivity exhibits a dramatic enhancement as P (x) approaches Pc (xc), around which Res(T) has a non-Fermi-liquid form. Accordingly, the electronic specific-heat coefficient of CrAs1-xPx peaks out around xc. These properties provide clear evidences for quantum criticality, which we interpret as originating from a nearly second-order helimagnetic quantum phase transition that is concomitant with a first-order structural transition. Our findings in CrAs highlight the distinct characteristics of quantum criticality in bad metals, thereby bringing out new insights into the physics of unconventional superconductivity such as occurring in the high-Tc iron pnictides.
Additional file 8: of Incorporating individual historical controls and aggregate treatment effect estimates into a Bayesian survival trial: a simulation study
Creators: name: Brard, Caroline
name: Hampson, Lisa
name: Gaspar, Nathalie
name: Marie-Cécile Le Deley
name: Gwénaël Le Teuff
Publisher: name: figshare
Year: 2019
Subjects: subject: Space Science
subject: Medicine
subject: Biotechnology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology

description: Tables A1-A3. Impact of α0 and ω on the operating characteristics for scenarios S1 to S12. These tables describe the impact of α0 and ω on the operating characteristics for scenarios S1 to S4 (Table A1), when historical and new control arm are commensurate, for scenarios S5 to S8 (Table A2), when there is a negative prior-data conflict, and for scenarios S9 to S12 (Table A3), when there is a positive prior-data conflict. A Weibull distribution is used to generate and analyse historical and new data, and σ H 2 $$ {\upsigma}_{\mathrm{H}}^2 $$ is equivalent to 329 events. (PDF 483 kb)
On the construction of global models describing rotating bodies; uniqueness of the exterior gravitational field
Creators: name: Mars, M.
name: Senovilla, J. M. M.
Publisher: name: arXiv
Year: 1998
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The problem of constructing global models describing isolated axially symmetric rotating bodies in equilibrium is analyzed. It is claimed that, whenever the global spacetime is constructed by giving boundary data on the limiting surface of the body and integrating Einstein's equations both inside and ouside the body, the problem becomes overdetermined. Similarly, when the spacetime describing the interior of the body is explicitly given,the problem of finding the exterior vacuum solution becomes overdetermined. We discuss in detail the procedure to be followed in order to construct the exterior vacuum field created by a given but arbitrary distribution of matter. Finally, the uniqueness of the exterior vacuum gravitational field is proven by exploiting the harmonic map formulation of the vacuum equations and the boundary conditions prescribed from the matching.
description: Latex, 10 pages, no figures
Why Patterns Appear Spontaneously in Dissipative Systems?
Creators: name: Staliunas, Kestutis
Publisher: name: arXiv
Year: 2000
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Pattern Formation and Solitons (nlin.PS)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: It is proposed that the spatial (and temporal) patterns spontaneously appearing in dissipative systems maximize the energy flow through the pattern forming interface. In other words - the patterns maximize the entropy growth rate in an extended conservative system (consisting of the pattern forming interface and the energy bathes). The proposal is supported by examples of the pattern formation in different systems. No example contradicting the proposal is known.
description: 7 pages, 1 figure
Fetal whole-heart 4D imaging using motion-corrected multi-planar real-time MRI
Creators: name: van Amerom, Joshua FP
name: Lloyd, David FA
name: Deprez, Maria
name: Price, Anthony N
name: Malik, Shaihan J
name: Pushparajah, Kuberan
name: van Poppel, Milou PM
name: Rutherford, Mary A
name: Razavi, Reza
name: Hajnal, Joseph V
Publisher: name: arXiv
Year: 2018
Subjects: subject: Medical Physics (physics.med-ph)
subject: FOS: Physical sciences

description: Purpose: To develop a MRI acquisition and reconstruction framework for volumetric cine visualisation of the fetal heart and great vessels in the presence of maternal and fetal motion. Methods: Four-dimensional depiction was achieved using a highly-accelerated multi-planar real-time balanced steady state free precession acquisition combined with retrospective image-domain techniques for motion correction, cardiac synchronisation and outlier rejection. The framework was evaluated and optimised using a numerical phantom, and evaluated in a study of 20 mid- to late-gestational age human fetal subjects. Reconstructed cine volumes were evaluated by experienced cardiologists and compared with matched ultrasound. A preliminary assessment of flow-sensitive reconstruction using the velocity information encoded in the phase of dynamic images is included. Results: Reconstructed cine volumes could be visualised in any 2D plane without the need for highly-specific scan plane prescription prior to acquisition or for maternal breath hold to minimise motion. Reconstruction was fully automated aside from user-specified masks of the fetal heart and chest. The framework proved robust when applied to fetal data and simulations confirmed that spatial and temporal features could be reliably recovered. Expert evaluation suggested the reconstructed volumes can be used for comprehensive assessment of the fetal heart, either as an adjunct to ultrasound or in combination with other MRI techniques. Conclusion: The proposed methods show promise as a framework for motion-compensated 4D assessment of the fetal heart and great vessels.
AC Dynamics and Metastability of a Flux-Line Lattice
Creators: name: Henderson, W.
name: Andrei, E. Y.
name: Higgins, M. J.
name: Bhattacharya, S.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We have measured the complex surface impedance of 2H-NbSe_2 in the mixed state over a wide range of magnetic field(0-2T) and frequency(10-3000MHz). A crossover between pinned and viscous dynamics of flux-lines is observed at a pinning frequency, $ω_p$. The measured $ω_p$ is compared to that predicted by a single-particle "washboard potential" model for the pinning interaction. When the flux lattice is prepared in an ordered state by zero-field cooling or by driving it with a large current, $ω_p$ is in good agreement with the predicted value. However, when it is prepared in a metastable disordered state by field cooling, $ω_p$ is nearly two orders of magnitude higher than expected indicating a complete break-down of the single-particle model.
description: 4 Pages, ReVTeX, epsf, 4 postscript figures
Optical and Near-Infrared Imaging of the IRAS 1-Jy Sample of Ultraluminous Infrared Galaxies: I. The Atlas
Creators: name: Kim, D. -C.
name: Veilleux, S.
name: Sanders, D. B.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: An imaging survey of the {\em IRAS} 1-Jy sample of 118 ultraluminous infrared galaxies was conducted at optical (R) and near-infrared (K') wavelengths using the University of Hawaii 2.2m telescope. The methods of observation and data reduction are described. An R and K' atlas of the entire sample is presented along with some of the basic astrometric and photometric parameters derived from these images. A more detailed analysis of these data is presented in a companion paper (Veilleux, Kim, & Sanders 2002; astro-ph/0207401).
description: Correction to D.-C. Kim's affiliations. 10 pages + 3 tables + a 24-page jpg atlas; see http://www.astro.umd.edu/~veilleux/pubs/paper1.tar.gz for original figures
Phases of the Brans-Dicke Cosmology with Matter
Creators: name: Park, Chanyong
name: Sin, Sang-Jin
Publisher: name: arXiv
Year: 1999
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the cosmology of the Brans-Dicke theory with perfect fluid type matter. In our previous work, we found exact solutions for any Brans-Dicke parameter $ω$ and for general parameter $γ$ of equation of state. In this paper we further study the cosmology of these solutions by analyzing them according to their asymptotic behaviors. The cosmology is classified into 19 phases according to the values of $γ$ and $ω$. The effect of the cosmological constant to the Brans-Dicke theory is a particular case of our model. We give plot of time evolution of the scale factor by numerical investigations. We also give a comparison of the solutions for the theories with and without matter.
description: 16 pages, 5 figures, Revtex
Growth and decay of discrete nonlinear Schroedinger breathers interacting with internal modes or standing-wave phonons
Creators: name: Johansson, Magnus
name: Aubry, Serge
Publisher: name: arXiv
Year: 2000
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Condensed Matter (cond-mat)
subject: Chaotic Dynamics (nlin.CD)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We investigate the long-time evolution of weakly perturbed single-site breathers (localized stationary states) in the discrete nonlinear Schroedinger (DNLS) equation. The perturbations we consider correspond to time-periodic solutions of the linearized equations around the breather, and can be either (i) spatially localized, or (ii) spatially extended. For case (i), which corresponds to the excitation of an internal mode of the breather, we find that the nonlinear interaction between the breather and its internal mode always leads to a slow growth of the breather amplitude and frequency. In case (ii), corresponding to interaction between the breather and a standing-wave phonon, the breather will grow provided that the wave vector of the phonon is such that the generation of radiating higher-harmonics at the breather is possible. In other cases, breather decay is observed. This condition yields a limit value for the breather frequency above which no further growth is possible. We also discuss another mechanism for breather growth and destruction which becomes important when the amplitude of the perturbation is non-negligible, and which originates from the oscillatory instabilities of the nonlinear standing-wave phonons.
description: 23 pages, 16 figures, to appear in Phys. Rev. E
Relative Importance of Convective Uncertainties
Creators: name: Kaiser, Etienne A.
name: Hirschi, Raphael
name: Arnett, W. David
name: Cristini, Andrea
name: Georgy, Cyril
name: Scott, Laura J. A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Convection plays a key role in the evolution of stars due to energy transport and mixing of composition. Despite its importance, this process is still not well understood. One longstanding conundrum in all 1D stellar evolution codes is the treatment of convective boundaries. In this study we compare two convective uncertainties, the boundary location (Ledoux versus Schwarzschild) and the amount of extra mixing, and their impact on the early evolution of massive stars. With increasing convective boundary mixing (CBM), we find a convergence of the two different boundary locations, a decreasing blue to red super giant ratio and a reduced importance of semiconvection.
description: 3 pages, 1 figure; to appear in Springer Proceedings in Physics (Proc. of Itl. Conf. "Nuclei in the Cosmos XV", LNGS Assergi, Italy, June 2018)