cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Dyson-Schwinger study of chiral density waves in QCD
Creators: name: Müller, Daniel
name: Buballa, Michael
name: Wambach, Jochen
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The formation of inhomogeneous chiral condensates in QCD matter at nonzero density and temperature is investigated for the first time with Dyson-Schwinger equations. We consider two massless quark flavors in a so-called chiral density wave, where scalar and pseudoscalar quark condensates vary sinusoidally along one spatial dimension. We find that the inhomogeneous region covers the major part of the spinodal region of the first-order phase transition which is present when the analysis is restricted to homogeneous phases. The triple point where the inhomogeneous phase meets the homogeneous phases with broken and restored chiral symmetry, respectively, coincides, within numerical accuracy, with the critical point of the homogeneous calculation. At zero temperature, the inhomogeneous phase seems to extend to arbitrarily high chemical potentials, as long as pairing effects are not taken into account.
description: 5 pages, 4 figures; v2: few minor modifications, matches published version
Superconductivity in LiFeO2Fe2Se2 with anti-PbO-type Spacer Layers
Creators: name: Lu, X. F.
name: Wang, N. Z.
name: Zhang, G. H.
name: Luo, X. G.
name: Ma, Z. M.
name: Lei, B.
name: Huang, F. Q.
name: Chen, X. H.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Superconductivity has been found in the iron-arsenides with different structures by alternative stacking of the conducting Fe2As2 layers and spacer layers including alkali- or alkali-earth metal ions and PbO- or perovskite-type oxides blocks. So far, no spacer layer could be intercalated in between the neutral Fe2Se2 layers similar in structure to Fe2As2 layers except for alkali-metal ions in AxFe2-ySe2. The superconducting phase in AxFe2-ySe2 with transition temperature of 32 K is always inter-grown with the insulating phase which exhibits an antiferromagnetic order with extremely high Neel temperature of ~560 K and the order of Fe vacancies. Such inhomogeneity makes the investigation on the underlying physics in AxFe2-ySe2 complicated. Here we report the synthesis of a novel superconductor LiFeO2Fe2Se2 by hydrothermal method, exhibiting superconductivity at ~43 K, in which anti-PbO-type spacer layers of LiFeO2 have been successfully intercalated between anti-PbO-type Fe2Se2 layers. This finding demonstrates that superconductivity can be realized in the iron selenide with a novel spacer layer of anti-PbO-type, which is not found in the iron arsenides, and expands the category of the iron-based superconductors. Such a new synthetic method paves a new way to search for possible novel superconductors with different spacer layers, which is helpful to further study the underlying physics in iron-based high-Tc superconductors.
description: 23 pages, 4 figures
Additional file 1 of Determinants of the utilization of allergy management measures among hay fever sufferers: a theory-based cross-sectional study
Creators: name: Muzalyova, Anna
name: Brunner, Jens O.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy
subject: Plant Biology

description: Additional file 1. Operationalization of the PMT constructs.
NiCrAl piston-cylinder cell for magnetic susceptibility measurements under high pressures in pulsed high magnetic fields
Creators: name: Nihongi, Katsuki
name: Kida, Takanori
name: Narumi, Yasuo
name: Kurita, Nobuyuki
name: Tanaka, Hidekazu
name: Uwatoko, Yoshiya
name: Kindo, Koichi
name: Hagiwara, Masayuki
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We developed a metallic pressure cell made of nickel-chromium-aluminum (NiCrAl) for use with a non-destructive pulse magnet and a magnetic susceptibility measurement apparatus with a proximity detector oscillator (PDO) in pulsed magnetic fields of up to 51 T under pressures of up to 2.1 GPa. Both the sample and sensor coil of the PDO were placed in the cell so that the magnetic signal from NiCrAl would not overlay the intrinsic magnetic susceptibility of the sample. A systematic investigation of the Joule heating originating from metallic parts of the pressure cell revealed that the temperature at the sample position remains at almost 1.4 K until approximately 80 $\%$ of the maximum applied magnetic field ($H_{\rm max}$) in the field-ascending process (e.g., 40 T for $H_{\rm max}$ of 51 T). The effectiveness of our apparatus was demonstrated, by investigating the pressure dependence of the magnetization process of the triangular-lattice antiferromagnet Ba$_3$CoSb$_2$O$_9$.
description: 7pages, 5 figures
Lophuromys nudicaudus Heller 1911
Creators: name: Musser, Guy G.
name: Carleton, Michael D.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Muridae
Lophuromys
Lophuromys nudicaudus

description: Lophuromys nudicaudus Heller, 1911. Smithson. Mise. Coll., 56(17):11. TYPE LOCALITY: Cameroon, Buia country, Efulen. DISTRIBUTION: Recorded from W Cameroon, Equatorial Guinea (incl. Bioko = Fernando Poo), and Gabon (see map in Dieterlen, 1978b). SYNONYMS: naso. COMMENTS: Subgenus Lophuromys. Included in L. sikapusi by Misonne (1974), but is a distinct species (see discussion in Rosevear, 1969). Dieterlen (1978b) explained why naso is a synonym. The karyotype of specimens from Cameroon was described by Verheyen and Van der Straeten (1980).
description: Published as part of Guy G. Musser & Michael D. Carleton, 1993, Order Rodentia - Family Muridae, pp. 501-755 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 606, DOI: 10.5281/zenodo.7353098
description: {"references": ["Dieterlen, F. 1978 b. Beitrage zur Kenntnis der Gattung Lophuromys (Muridae: Rodentia) in Kamerun und Gabun. Bonner Zoologische Beitrage, 29: 287 - 299.", "Misonne, X. 1974. Order Rodentia. Part 6. Pp. 1 - 39, in The mammals of Africa: An identification manual (J. Meester and H. W. Setzer, eds.). [issued 10 Sep 1974]. Smithsonian Institution Press, Washington, D. C., not continuously paginated.", "Rosevear, D. R. 1969. The rodents of West Africa. Trustees of the British Museum (Natural History), London, 677: 1 - 604.", "Van der Straeten, E., and W. N. Verheyen. 1980. Relations biometriques dans le groupe specifique Lemniscomys striatus (Mammalia, Muridae). Mammalia, 44: 73 - 82."]}
Flow of non-Newtonian Fluids in Converging-Diverging Rigid Tubes
Creators: name: Sochi, Taha
Publisher: name: arXiv
Year: 2013
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: A residual-based lubrication method is used in this paper to find the flow rate and pressure field in converging-diverging rigid tubes for the flow of time-independent category of non-Newtonian fluids. Five converging-diverging prototype geometries were used in this investigation in conjunction with two fluid models: Ellis and Herschel-Bulkley. The method was validated by convergence behavior sensibility tests, convergence to analytical solutions for the straight tubes as special cases for the converging-diverging tubes, convergence to analytical solutions found earlier for the flow in converging-diverging tubes of Newtonian fluids as special cases for non-Newtonian, and convergence to analytical solutions found earlier for the flow of power-law fluids in converging-diverging tubes. A brief investigation was also conducted on a sample of diverging-converging geometries. The method can in principle be extended to the flow of viscoelastic and thixotropic/rheopectic fluid categories. The method can also be extended to geometries varying in size and shape in the flow direction, other than the perfect cylindrically-symmetric converging-diverging ones, as long as characteristic flow relations correlating the flow rate to the pressure drop on the discretized elements of the lubrication approximation can be found. These relations can be analytical, empirical and even numerical and hence the method has a wide applicability range.
description: 36 pages, 14 figures, 5 tables
Asymptotics in finite monoidal categories
Creators: name: Lacabanne, Abel
name: Tubbenhauer, Daniel
name: Vaz, Pedro
Publisher: name: arXiv
Year: 2023
Subjects: subject: Representation Theory (math.RT)
subject: Category Theory (math.CT)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: Primary: 11N45, 18M05, Secondary: 16T05, 18M20, 26A12

description: We give explicit formulas for the asymptotic growth rate of the number of summands in tensor powers in certain monoidal categories with finitely many indecomposable objects, and related structures.
description: 10 pages, many figures, revision, comments welcome
Lepton-pair scattering with an off-shell and an on-shell photon at two loops in massless QED
Creators: name: Badger, Simon
name: Kryś, Jakub
name: Moodie, Ryan
name: Zoia, Simone
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We compute the two-loop QED helicity amplitudes for the scattering of a lepton pair with an off-shell and an on-shell photon, $0\to\ell\bar\ellγγ^*$, using the approximation of massless leptons. We express all master integrals relevant for the scattering of four massless particles with a single external off-shell leg up to two loops in a basis of algebraically independent multiple polylogarithms, which guarantees an efficient numerical evaluation and compact analytic representations of the amplitudes. Analytic forms of the amplitudes are reconstructed from numerical evaluations over finite fields. Our results complete the amplitude-level ingredients contributing to the N$^3$LO predictions of electron-muon scattering $eμ\to eμ$, which are required to meet the precision goal of the future MUonE experiment.
description: 16 + 14 pages, 2 figures, 2 tables, 5 appendices. Ancillary files also at https://doi.org/10.5281/zenodo.8120540 . v3: minor revision to address referee report
Frequency-domain algorithm for the Lorenz-gauge gravitational self-force
Creators: name: Akcay, Sarp
name: Warburton, Niels
name: Barack, Leor
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: State-of-the-art computations of the gravitational self-force (GSF) on massive particles in black hole spacetimes involve numerical evolution of the metric perturbation equations in the time-domain, which is computationally very costly. We present here a new strategy, based on a frequency-domain treatment of the perturbation equations, which offers considerable computational saving. The essential ingredients of our method are (i) a Fourier-harmonic decomposition of the Lorenz-gauge metric perturbation equations and a numerical solution of the resulting coupled set of ordinary equations with suitable boundary conditions; (ii) a generalized version of the method of extended homogeneous solutions [Phys. Rev. D {\bf 78}, 084021 (2008)] used to circumvent the Gibbs phenomenon that would otherwise hamper the convergence of the Fourier mode-sum at the particle's location; and (iii) standard mode-sum regularization, which finally yields the physical GSF as a sum over regularized modal contributions. We present a working code that implements this strategy to calculate the Lorenz-gauge GSF along eccentric geodesic orbits around a Schwarzschild black hole. The code is far more efficient than existing time-domain methods; the gain in computation speed (at a given precision) is about an order of magnitude at an eccentricity of 0.2, and up to three orders of magnitude for circular or nearly circular orbits. This increased efficiency was crucial in enabling the recently reported calculation of the long-term orbital evolution of an extreme mass ratio inspiral [Phys. Rev. D {\bf 85}, 061501(R) (2012)]. Here we provide full technical details of our method to complement the above report.
description: 27 pages, 4 figures
Additional file 1 of Sphenodontian phylogeny and the impact of model choice in Bayesian morphological clock estimates of divergence times and evolutionary rates
Creators: name: Simões, Tiago R.
name: Caldwell, Michael W.
name: Pierce, Stephanie E.
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: Geology
subject: FOS: Earth and related environmental sciences

description: Additional file 1. Text document containing additional methodological information and supplementary figures.
Additional file 2 of Sphenodontian phylogeny and the impact of model choice in Bayesian morphological clock estimates of divergence times and evolutionary rates
Creators: name: Simões, Tiago R.
name: Caldwell, Michael W.
name: Pierce, Stephanie E.
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: Geology
subject: FOS: Earth and related environmental sciences

description: Additional file 2. Text document containing list of sampled taxa, along with their occurrence data, stratigraphic interval, age, anatomical bibliography, and personally observed specimen numbers.
eXTP & STROBE-X in Spain
Creators: name: Hernanz, Margarita
Publisher: name: Zenodo
Year: 2024

description: The eXTP (enhanced X-ray Timing and Polarimetry) mission is a major project of the Chinese Academy of Sciences (CAS), with a large involvement of Europe, who leads two of its four instruments. eXTP offers a unique simultaneous wide-band X-ray timing and polarimetry sensitivity. One of its four instruments is the WFM, led by Spain (M. Hernanz is the PI), a Wide Field Monitor in the 2-50 keV X-ray energy range, providing an unprecedented combination of large field of view and imaging, together with a very good spectral resolution, down to 2 keV. On the other hand, the eXTP Spanish team has participated in the STROBE-X proposal in response to the NASA call from PROBE missions; the proposal was submitted in November 2023. STROBE-X includes a WFM very similar to the one for eXTP.
Levilactobacillus fuyuanensis FUYUANENSIS 2020, COMB. NOV.
Creators: name: Zheng, Jinshui
name: Wittouck, Stijn
name: Salvetti, Elisa
name: Franz, Charles M. A. P.
name: Harris, Hugh M. B.
name: Mattarelli, Paola
name: O'Toole, Paul W.
name: Pot, Bruno
name: Vandamme, Peter
name: Walter, Jens
name: Watanabe, Koichi
name: Wuyts, Sander
name: Felis, Giovanna E.
name: Gänzle, Michael G.
name: Lebeer, Sarah
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Bacteria
Firmicutes
Bacilli
Lactobacillales
Lactobacillaceae
Levilactobacillus
Levilactobacillus fuyuanensis

description: DESCRIPTIONOF LEVILACTOBACILLUS FUYUANENSIS COMB. NOV.
Levilactobacillus fuyuanensis (fu.yuan.en’sis. N.L. masc. adj. fuyuanensis, pertaining to Fuyuan, a county in the Heilongjiang province of China).
Basonym: Lactobacillus fuyuanensis Long and Gu 2019, 2351 VP
Characteristics of the species are as described [158]. The genome size of the type strain is 2.72 Mbp. The mol% G+C content of DNA is 48.6.
Isolatedfromfermented Chinesecabbage.
Thetypestrainis 244–4 T = CCM 8906 T =KCTC 21137 T =LMG 31052 T.
Genome sequence accession number: RHNZ00000000.
16S rRNA gene accession number: MK110862.
description: Published as part of Zheng, Jinshui, Wittouck, Stijn, Salvetti, Elisa, Franz, Charles M. A. P., Harris, Hugh M. B., Mattarelli, Paola, O'Toole, Paul W., Pot, Bruno, Vandamme, Peter, Walter, Jens, Watanabe, Koichi, Wuyts, Sander, Felis, Giovanna E., Gänzle, Michael G. & Lebeer, Sarah, 2020, A taxonomic note on the genus Lactobacillus: Description of 23 novel genera, emended description of the genus Lactobacillus Beijerinck 1901, and union of Lactobacillaceae and Leuconostocaceae, pp. 2782-2858 in International Journal of Systematic and Evolutionary Microbiology 70 on page 2837, DOI: 10.1099/ijsem.0.004107, http://zenodo.org/record/4730536
Additional file 3 of Sphenodontian phylogeny and the impact of model choice in Bayesian morphological clock estimates of divergence times and evolutionary rates
Creators: name: Simões, Tiago R.
name: Caldwell, Michael W.
name: Pierce, Stephanie E.
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: Geology
subject: FOS: Earth and related environmental sciences

description: Additional file 3. Text document including phylogenetic morphological characters list with individual character descriptions.
Parton distributions with QED corrections
Creators: name: The NNPDF Collaboration
name: Ball, Richard D.
name: Bertone, Valerio
name: Carrazza, Stefano
name: Del Debbio, Luigi
name: Forte, Stefano
name: Guffanti, Alberto
name: Hartland, Nathan P.
name: Rojo, Juan
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a set of parton distribution functions (PDFs), based on the NNPDF2.3 set, which includes a photon PDF, and QED contributions to parton evolution. We describe the implementation of the combined QCD+QED evolution in the NNPDF framework. We then provide a first determination of the full set of PDFs based on deep-inelastic scattering data and LHC data for W and Z/gamma* Drell-Yan production, using leading-order QED and NLO or NNLO QCD. We compare the ensuing NNPDF2.3QED PDF set to the older MRST2004QED set. We perform a preliminary investigation of the phenomenological implications of NNPDF2.3QED: specifically, photon-induced corrections to direct photon production at HERA, and high-mass dilepton and W pair production at the LHC.
description: 38 pages, 27 figures. Final version, to be published in Nucl. Phys. B. Several corrections and improvements, in particular Fig.5 added, Fig.2, Fig. 6 and Fig.8 improved, Fig.21 corrected
title: Экологическая безопасность в строительстве
Creators: name: ELS IPR BOOKS
Publisher: name: Донской государственный технический университет
Year: 2020

description: Рассматриваются теоретические и практические принципы организации управления экологической безопасностью в строительстве, правовые аспекты воздействия строительного производства на окружающую среду, основные подходы к организации менеджмента окружающей среды, особенности организации проектирования и строительства объектов с учетом экологических требований. Предназначено для обучающихся по направлениям подготовки 08.03.01 «Строительство» и 20.03.01 «Техносферная безопасность».
Observational Study of Large Amplitude Longitudinal Oscillations in a Solar Filament
Creators: name: Knizhnik, K.
name: Luna, M.
name: Muglach, K.
name: Gilbert, H.
name: Kucera, T.
name: Karpen, J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: On 20 August 2010 an energetic disturbance triggered damped large-amplitude longitudinal (LAL) oscillations in almost an entire filament. In the present work we analyze this periodic motion in the filament to characterize the damping and restoring mechanism of the oscillation. Our method involves placing slits along the axis of the filament at different angles with respect to the spine of the filament, finding the angle at which the oscillation is clearest, and fitting the resulting oscillation pattern to decaying sinusoidal and Bessel functions. These functions represent the equations of motion of a pendulum damped by mass accretion. With this method we determine the period and the decaying time of the oscillation. Our preliminary results support the theory presented by Luna and Karpen (2012) that the restoring force of LAL oscillations is solar gravity in the tubes where the threads oscillate, and the damping mechanism is the ongoing accumulation of mass onto the oscillating threads. Following an earlier paper, we have determined the magnitude and radius of curvature of the dipped magnetic flux tubes hosting a thread along the filament, as well as the mass accretion rate of the filament threads, via the fitted parameters.
description: 2 pages; to appear in proceedings for IAUS300 conference
Lophuromys rahmi Verheyen 1964
Creators: name: Musser, Guy G.
name: Carleton, Michael D.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Muridae
Lophuromys
Lophuromys rahmi

description: Lophuromys rahmi Verheyen, 1964. Rev. Zool. Bot. Afr., 69:206. TYPE LOCALITY: Zaire, Kivu, Bogamanda near Lemera. DISTRIBUTION: Recorded from montane forest in E Zaire (Kivu) and Rwanda above 1800 m; limits unknown, possibly a montane Western Rift endemic. COMMENTS: Subgenus Lophuromys. Distributional and biological information summarized by Verheyen (1964a), Van der Straeten and Verheyen (1983), and Dieterlen (1976 b, 1987).
description: Published as part of Guy G. Musser & Michael D. Carleton, 1993, Order Rodentia - Family Muridae, pp. 501-755 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 606, DOI: 10.5281/zenodo.7353098
description: {"references": ["Verheyen, W. N. 1964 a. Description of Lophuromys rahmi a new species of Muridae from Central Africa. Revue de Zoologie et de Botanique Africaines, 69: 206 - 213.", "Van der Straeten, E., and W. N. Verheyen. 1983. Nouvelles captures de Lophuromys rahmi et Delanymys brooksi en Republique Rwandaise. Mammalia, 47: 426 - 430.", "Dieterlen, F. 1976 b. Die afrikanische Muridengattung Lophuromys Peters, 1874. Vergleiche an Hand neuer Daten zur Morphologie, Okologie und Biologie. Stuttgarter Beitrage zur Naturkunde, ser. A (Biologie), 285: 1 - 96.", "Giagia, E. B., S. E. Fraguedakis-Tsolis, and B. P. Chondropoulos. 1987. Contribution to the study of the taxonomy and zoogeography of wild house mouse, genus Mus L. (Mammalia, Rodentia, Muridae) in Greece. II. Karyological study of two populations from southern Greece. Mammalia, 51: 111 - 116."]}
Exact asymptotically flat charged hairy black holes with a dilaton potential
Creators: name: Anabalon, Andres
name: Astefanesei, Dumitru
name: Mann, Robert
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We find broad classes of exact 4-dimensional asymptotically flat black hole solutions in Einstein-Maxwell theories with a non-minimally coupled dilaton and its non-trivial potential. We consider a few interesting limits, in particular, a regular generalization of the dilatonic Reissner-Nordstr{ö}m solution and, also, smooth deformations of supersymmetric black holes. Further examples are provided for more general dilaton potentials. We discuss the thermodynamical properties and show that the first law is satisfied. In the non-extremal case the entropy depends, as expected, on the asymptotic value of the dilaton. In the extremal limit, the entropy is determined purely in terms of charges and is independent of the asymptotic value of the dilaton. The attractor mechanism can be used as a criterion for the existence of the regular solutions. Since there is a `competition' between the effective potential and dilaton potential, we also obtain regular extremal black hole solutions with just one U(1) gauge field turned on.
description: 19 pages, no figures; v2: comments and refs. added, matches the published version
Total dominator chromatic number and Mycieleskian graphs
Creators: name: Kazemi, Adel P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C15, 05C69

description: A total dominator coloring of a graph $G$ is a proper coloring of $G$ in which each vertex of the graph is adjacent to every vertex of some color class. The total dominator chromatic number $χ_d^t(G)$ of $G$ is the minimum number of color classes in a total dominator coloring of it. In [Total dominator chromatic number of a graph, submitted] the author initialed to study this number in graphs and obtained some important results. Here, we continue it in Mycieleskian graphs. We show that the total dominator chromatic number of the Mycieleskian of a graph $G$ belongs to between $χ_d^t(G)+1$ and $χ_d^t(G)+2$, and then characterize the family of graphs the their total dominator chromatic numbers are each of them.
description: arXiv admin note: substantial text overlap with arXiv:1307.7486
Function spaces and functional frameworks
Creators: name: Wick, Thomas
Publisher: name: Hannover : Institutionelles Repositorium der Leibniz Universität Hannover
Year: 2023
Subjects: subject: Spaces
subject: Function space
subject: Functional framework
subject: Numerics
subject: Functional analysis
subject: Partial differential equations
subject: Räume
subject: Funktionenraum
subject: Funktionalframework
subject: Numerik
subject: Funktionalanalysis
subject: Partielle Differentialgleichungen
subject: Dewey Decimal Classification::500 | Naturwissenschaften::510 | Mathematik

description: The goal is to provide an overview about function spaces, and more generally speaking functional frameworks that include metric spacs, normed spaces, inner product spaces, and convex sets for variational inequalities. Throughout, the implication to algorithms and practical applications is made and sometimes illustrated with numerical simulations from my own work.
Quantized Thermal Hall Conductance and the Topological Phase Diagram of a Superconducting Bismuth Bilayer
Creators: name: Głodzik, Szczepan
name: Sedlmayr, Nicholas
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Two dimensional topological superconductors with chiral edge modes are predicted to posses a quantized thermal Hall effect proportional to the Chern number, exactly half that for chiral topological insulators. However not much work has been done in identifying the quantized heat conductance in the literature, even for some of the standard models of topological superconductivity. Here we introduce a model based on a proximity induced superconducting Bismuth bilayer, and directly calculate the thermal Hall conductance of this lattice model. This model serves as a demonstration of the state of the art possible in such a calculation, as well as introducing an interesting paradigmatic topological superconductor with a rich phase diagram. We demonstrate the quantized thermal Hall plateaus in several different topological phases, and compare this to numerical calculations of the Chern number, as well as analytical calculations of the Chern number's parity invariant. We demonstrate that it is possible to get a reasonable topological phase diagram from the quantized thermal Hall calculations. The technique used can be applied to wide range of models directly in real space.
Das Weltreligionenparadigma im Werte und Normen Unterricht: Eine kritische Analyse ausgewählter Schulbücher
Creators: name: Becker, Julia
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität
Year: 2023
Subjects: subject: Lehramt
subject: Schulbuch
subject: Weltreligion
subject: Unterricht
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::370 | Erziehung, Schul- und Bildungswesen
subject: Dewey Decimal Classification::200 | Religion, Religionsphilosophie

description: [no abstract available]
Chaos and dynamical trends in barred galaxies: bridging the gap between N-body simulations and time-dependent analytical models
Creators: name: Manos, T.
name: Machado, Rubens E. G.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Self-consistent N-body simulations are efficient tools to study galactic dynamics. However, using them to study individual trajectories (or ensembles) in detail can be challenging. Such orbital studies are important to shed light on global phase space properties, which are the underlying cause of observed structures. The potentials needed to describe self-consistent models are time-dependent. Here, we aim to investigate dynamical properties (regular/chaotic motion) of a non-autonomous galactic system, whose time-dependent potential adequately mimics certain realistic trends arising from N-body barred galaxy simulations. We construct a fully time-dependent analytical potential, modeling the gravitational potentials of disc, bar and dark matter halo, whose time-dependent parameters are derived from a simulation. We study the dynamical stability of its reduced time-independent 2-degrees of freedom model, charting the different islands of stability associated with certain orbital morphologies and detecting the chaotic and regular regions. In the full 3-degrees of freedom time-dependent case, we show representative trajectories experiencing typical dynamical behaviours, i.e., interplay between regular and chaotic motion for different epochs. Finally, we study its underlying global dynamical transitions, estimating fractions of (un)stable motion of an ensemble of initial conditions taken from the simulation. For such an ensemble, the fraction of regular motion increases with time.
description: 17 pages, 11 figures (revised version, accepted for publication in Mon. Not. R. Astron. Soc.)
Additional file 1 of The effectiveness of parent training for children with autism spectrum disorder: a systematic review and meta-analyses
Creators: name: Shoumitro (Shoumi) Deb
name: Retzer, Ameeta
name: Roy, Meera
name: Rupali Acharya
name: Limbu, Bharati
name: Roy, Ashok
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1.
On the Relationship between Discrete and Continuous Energy Spectra of SU(N) Supermembrane Matrix Model
Creators: name: Michishita, Yoji
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: It has been known that SU(N) supermembrane matrix model has continuous energy spectrum, and it has also been conjectured that it has a normalizable energy eigenstate. Assuming that there exists a normalizable energy eigenstate for each N, we show that there exists a branch of continuous energy spectrum for each partition of N.
description: 33 pages, 2 figures, v2: reference added, minor corrections
Additional file 1 of Preparedness of non-hospital health centers to manage patients with life-threatening emergency conditions: findings from a qualitative study
Creators: name: Sadeghi-Bazargani, Homayoun
name: Amir-Behghadami, Mehrdad
name: Gholizadeh, Masoumeh
name: Janati, Ali
name: Rahmani, Farzad
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 1. Interview guide.
X-ray nuclear activity in S4G barred galaxies: No link between bar strength and co-occurrent supermassive black hole fueling
Creators: name: Cisternas, Mauricio
name: Gadotti, Dimitri
name: Knapen, Johan H.
name: Kim, Taehyun
name: Díaz-García, Simón
name: Laurikainen, Eija
name: Salo, Heikki
name: González-Martín, Omaira
name: Ho, Luis C.
name: Elmegreen, Bruce G.
name: Zaritsky, Dennis
name: Sheth, Kartik
name: Athanassoula, E.
name: Bosma, Albert
name: Comerón, Sébastien
name: Erroz-Ferrer, Santiago
name: De Paz, Armando Gil
name: Hinz, Joannah L.
name: Holwerda, Benne W.
name: Laine, Jarkko
name: Meidt, Sharon
name: Menéndez-Delmestre, Karín
name: Mizusawa, Trisha
name: Muñoz-Mateos, Juan-Carlos
name: Regan, Michael
name: Seibert, Mark
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Stellar bars can lead to gas inflow toward the center of a galaxy and stimulate nuclear star formation. However, there is no compelling evidence on whether they also feed a central supermassive black hole: by measuring the fractions of barred active and inactive galaxies, previous studies have yielded conflicting results. In this paper, we aim to understand the lack of observational evidence for bar-driven active galactic nucleus (AGN) activity by studying a sample of 41 nearby (d < 35 Mpc) barred galaxies from the Spitzer Survey for Stellar Structure in Galaxies. We use Chandra observations to measure nuclear 2--10 keV X-ray luminosities and estimate Eddington ratios, together with Spitzer 3.6um imaging to quantify the strength of the stellar bar in two independent ways: (1) from its structure, as traced by its ellipticity and boxiness, and (2) from its gravitational torque Q_b, taken as the maximum ratio of the tangential force to the mean background radial force. In this way, rather than discretizing the presence of both stellar bars and nuclear activity, we are able to account for the continuum of bar strengths and degrees of AGN activity. We find nuclear X-ray sources in 31 out of 41 galaxies with median X-ray luminosity and Eddington ratio of L_X=4.3x10^{38} erg/s and L_bol/L_Edd=6.9x10^{-6} respectively, consistent with low-luminosity AGN activity. Including upper limits for those galaxies without nuclear detections, we find no significant correlation between any of the bar strength indicators and the degree of nuclear activity, irrespective of galaxy luminosity, stellar mass, Hubble type, or bulge size. Strong bars do not favor brighter or more efficient nuclear activity, implying that at least for the low-luminosity regime, supermassive black hole fueling is not closely connected to large scale features.
description: 16 pages, 6 figures, accepted for publication in ApJ
Quantitative statistical analysis of order-splitting behaviour of individual trading accounts in the Japanese stock market over nine years
Creators: name: Sato, Yuki
name: Kanazawa, Kiyoshi
Publisher: name: arXiv
Year: 2023
Subjects: subject: Trading and Market Microstructure (q-fin.TR)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Computational Finance (q-fin.CP)
subject: General Finance (q-fin.GN)
subject: Risk Management (q-fin.RM)
subject: FOS: Economics and business
subject: FOS: Physical sciences

description: In this research, we focus on the order-splitting behavior. The order splitting is a trading strategy to execute their large potential metaorder into small pieces to reduce transaction cost. This strategic behavior is believed to be important because it is a promising candidate for the microscopic origin of the long-range correlation (LRC) in the persistent order flow. Indeed, in 2005, Lillo, Mike, and Farmer (LMF) introduced a microscopic model of the order-splitting traders to predict the asymptotic behavior of the LRC from the microscopic dynamics, even quantitatively. The plausibility of this scenario has been qualitatively investigated by Toth et al. 2015. However, no solid support has been presented yet on the quantitative prediction by the LMF model in the lack of large microscopic datasets. In this report, we have provided the first quantitative statistical analysis of the order-splitting behavior at the level of each trading account. We analyse a large dataset of the Tokyo stock exchange (TSE) market over nine years, including the account data of traders (called virtual servers). The virtual server is a unit of trading accounts in the TSE market, and we can effectively define the trader IDs by an appropriate preprocessing. We apply a strategy clustering to individual traders to identify the order-splitting traders and the random traders. For most of the stocks, we find that the metaorder length distribution obeys power laws with exponent $α$, such that $P(L)\propto L^{-α-1}$ with the metaorder length $L$. By analysing the sign correlation $C(τ)\propto τ^{-γ}$, we directly confirmed the LMF prediction $γ\approx α-1$. Furthermore, we discuss how to estimate the total number of the splitting traders only from public data via the ACF prefactor formula in the LMF model. Our work provides the first quantitative evidence of the LMF model.
description: 33 pages, 19 figures
Lagrangian kinematics of steep waves up to the inception of a spilling breaker
Creators: name: Shemer, Lev
name: Liberzon, Dan
Publisher: name: arXiv
Year: 2013
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Horizontal Lagrangian velocities and accelerations at the surface of steep water-waves are studied by Particle Tracking Velocimetry (PTV) for gradually increasing crest heights up to the inception of a spilling breaker. Localized steep waves are excited using wavemaker-generated Peregrine breather-type wave trains. Actual crest and phase velocities are estimated from video recorded sequences of the instantaneous wave shape as well as from surface elevation measurements by wave gauges. Effects of nonlinearity and spectral width on phase velocity, as well as relation between the phase velocity and crest propagation speed are discussed. The inception of a spilling breaker is associated with the horizontal velocity of water particles at the crest attaining that of the crest, thus confirming the kinematic criterion for inception of breaking.
description: 22 pages, 10 figures. Submitted to Physics of Fluids
Lophuromys sikapusi
Creators: name: Musser, Guy G.
name: Carleton, Michael D.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Muridae
Lophuromys
Lophuromys sikapusi

description: Lophuromys sikapusi (Temminck, 1853). Esquisses Zool. sur la Côte de Guine, p. 160. TYPE LOCALITY: Ghana, Dabacrom. DISTRIBUTION: From Sierra Leone through West Africa to Zaire, Uganda, and W Kenya; also in N Angola (see map in Dieterlen, 1976b:10). SYNONYMS: afer, ansorgei, eisentrauti, manteufeli, pyrrhus, tullbergi. COMMENTS: Subgenus Lophuromys. West African samples were reviewed by Rosevear (1969). Dieterlen (1978b) described eisentrauti as a subspecies in the Bamenda highlands of W Camaroon, but Hutterer et al. (1992) raised it to species rank. Chromosomal information summarized by Gautun et al. (1986).
description: Published as part of Guy G. Musser & Michael D. Carleton, 1993, Order Rodentia - Family Muridae, pp. 501-755 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 606, DOI: 10.5281/zenodo.7353098
description: {"references": ["Dieterlen, F. 1976 b. Die afrikanische Muridengattung Lophuromys Peters, 1874. Vergleiche an Hand neuer Daten zur Morphologie, Okologie und Biologie. Stuttgarter Beitrage zur Naturkunde, ser. A (Biologie), 285: 1 - 96.", "Rosevear, D. R. 1969. The rodents of West Africa. Trustees of the British Museum (Natural History), London, 677: 1 - 604.", "Dieterlen, F. 1978 b. Beitrage zur Kenntnis der Gattung Lophuromys (Muridae: Rodentia) in Kamerun und Gabun. Bonner Zoologische Beitrage, 29: 287 - 299.", "Gautun, J. - C., I. Sankhon, and M. Tranier. 1986. Nouvelle contribution a la connaissance des rongeurs du massif guineen des monts Nimba (Afrique occidentale). Systematique et apercu quantitatif. Mammalia, 50: 205 - 217."]}
A digital twin framework for civil engineering structures
Creators: name: Torzoni, Matteo
name: Tezzele, Marco
name: Mariani, Stefano
name: Manzoni, Andrea
name: Willcox, Karen E.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Numerical Analysis (math.NA)
subject: Machine Learning (cs.LG)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: The digital twin concept represents an appealing opportunity to advance condition-based and predictive maintenance paradigms for civil engineering systems, thus allowing reduced lifecycle costs, increased system safety, and increased system availability. This work proposes a predictive digital twin approach to the health monitoring, maintenance, and management planning of civil engineering structures. The asset-twin coupled dynamical system is encoded employing a probabilistic graphical model, which allows all relevant sources of uncertainty to be taken into account. In particular, the time-repeating observations-to-decisions flow is modeled using a dynamic Bayesian network. Real-time structural health diagnostics are provided by assimilating sensed data with deep learning models. The digital twin state is continually updated in a sequential Bayesian inference fashion. This is then exploited to inform the optimal planning of maintenance and management actions within a dynamic decision-making framework. A preliminary offline phase involves the population of training datasets through a reduced-order numerical model and the computation of a health-dependent control policy. The strategy is assessed on two synthetic case studies, involving a cantilever beam and a railway bridge, demonstrating the dynamic decision-making capabilities of health-aware digital twins.
Additional file 3 of The effectiveness and cost effectiveness of a hospital avoidance program in a residential aged care facility: a prospective cohort study and modelled decision analysis
Creators: name: Carter, Hannah E.
name: Lee, Xing J.
name: Dwyer, Trudy
name: O’Neill, Barbara
name: Jeffrey, Dee
name: Doran, Christopher M
name: Parkinson, Lynne
name: Osborne, Sonya R
name: Reid-Searl, Kerry
name: Graves, Nicholas
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 3. Cost-effectiveness model structure. Figure A: Health states and transitions within usual care. Figure B: Health states and transitions within the EDDIE intervention.
Ultrasound Modulated Bioluminescence Tomography
Creators: name: Bal, Guillaume
name: Schotland, John C
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We propose a method to reconstruct the density of a luminescent source in a highly-scattering medium from ultrasound modulated optical measurements. Our approach is based on the solution to a hybrid inverse source problem for the diffusion equation.
description: Supplementary information included
Non-Convex Bilevel Optimization with Time-Varying Objective Functions
Creators: name: Lin, Sen
name: Sow, Daouda
name: Ji, Kaiyi
name: Liang, Yingbin
name: Shroff, Ness
Publisher: name: arXiv
Year: 2023
Subjects: subject: Optimization and Control (math.OC)
subject: Machine Learning (cs.LG)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: Bilevel optimization has become a powerful tool in a wide variety of machine learning problems. However, the current nonconvex bilevel optimization considers an offline dataset and static functions, which may not work well in emerging online applications with streaming data and time-varying functions. In this work, we study online bilevel optimization (OBO) where the functions can be time-varying and the agent continuously updates the decisions with online streaming data. To deal with the function variations and the unavailability of the true hypergradients in OBO, we propose a single-loop online bilevel optimizer with window averaging (SOBOW), which updates the outer-level decision based on a window average of the most recent hypergradient estimations stored in the memory. Compared to existing algorithms, SOBOW is computationally efficient and does not need to know previous functions. To handle the unique technical difficulties rooted in single-loop update and function variations for OBO, we develop a novel analytical technique that disentangles the complex couplings between decision variables, and carefully controls the hypergradient estimation error. We show that SOBOW can achieve a sublinear bilevel local regret under mild conditions. Extensive experiments across multiple domains corroborate the effectiveness of SOBOW.
Additional file 4 of The effectiveness and cost effectiveness of a hospital avoidance program in a residential aged care facility: a prospective cohort study and modelled decision analysis
Creators: name: Carter, Hannah E.
name: Lee, Xing J.
name: Dwyer, Trudy
name: O’Neill, Barbara
name: Jeffrey, Dee
name: Doran, Christopher M
name: Parkinson, Lynne
name: Osborne, Sonya R
name: Reid-Searl, Kerry
name: Graves, Nicholas
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 4. Figure A: Density of the fitted Normal distribution for the annual number of hospital admissions. Figure B: Density of the fitted Gamma distribution for length of stay.
FoodSAM: Any Food Segmentation
Creators: name: Lan, Xing
name: Lyu, Jiayi
name: Jiang, Hanyu
name: Dong, Kun
name: Niu, Zehai
name: Zhang, Yi
name: Xue, Jian
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: In this paper, we explore the zero-shot capability of the Segment Anything Model (SAM) for food image segmentation. To address the lack of class-specific information in SAM-generated masks, we propose a novel framework, called FoodSAM. This innovative approach integrates the coarse semantic mask with SAM-generated masks to enhance semantic segmentation quality. Besides, we recognize that the ingredients in food can be supposed as independent individuals, which motivated us to perform instance segmentation on food images. Furthermore, FoodSAM extends its zero-shot capability to encompass panoptic segmentation by incorporating an object detector, which renders FoodSAM to effectively capture non-food object information. Drawing inspiration from the recent success of promptable segmentation, we also extend FoodSAM to promptable segmentation, supporting various prompt variants. Consequently, FoodSAM emerges as an all-encompassing solution capable of segmenting food items at multiple levels of granularity. Remarkably, this pioneering framework stands as the first-ever work to achieve instance, panoptic, and promptable segmentation on food images. Extensive experiments demonstrate the feasibility and impressing performance of FoodSAM, validating SAM's potential as a prominent and influential tool within the domain of food image segmentation. We release our code at https://github.com/jamesjg/FoodSAM.
description: Code is available at https://github.com/jamesjg/FoodSAM
Disturbance and Succession an Active Learning Lecture
Creators: name: Juliana, Justin
Publisher: name: QUBES Educational Resources
Year: 2024

description: Identify and understand examples of disturbance
Provide examples of and know/understand the differences between primary and secondary succession.
Know how ecologists study succession
Understand mechanism of succession as a function of pioneer and climax species.
Understand how disturbance and succession shape communities, including the intermediate disturbance hypothesis.
Apply principals of succession and disturbance to landscape level management.