cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Friedman vs Abel equations: A connection unraveled
Creators: name: Yurov, A. V.
name: Yurov, V. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present an interesting connection between Einstein-Friedmann equations for the models of universe filled with scalar field and the special form of Abel equation of the first kind. This connection works in both ways: first, we show how, knowing the general solution of the Abel equation (corresponding to the given scalar field potential) one can obtain the general solution of the Friedman Equation (and use the former for studying such problems as existence of inflation with exit for particular models). On the other hand, one can invert the procedure and construct the Bäcklund auto-transformations for the Abel equation.
description: Replaced raw version (with fake abstract and acknowledgments) to a new, revised version
Primordial magnetic fields from second-order cosmological perturbations: Tight coupling approximation
Creators: name: Maeda, Satoshi
name: Kitagawa, Satoshi
name: Kobayashi, Tsutomu
name: Shiromizu, Tetsuya
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We explore the possibility of generating large-scale magnetic fields from second-order cosmological perturbations during the pre-recombination era. The key process for this is Thomson scattering between the photons and the charged particles within the cosmic plasma. To tame the multi-component interacting fluid system, we employ the tight coupling approximation. It is shown that the source term for the magnetic field is given by the vorticity, which signals the intrinsically second-order quantities, and the product of the first order perturbations. The vorticity itself is sourced by the product of the first-order quantities in the vorticity evolution equation. The magnetic fields generated by this process are estimated to be $\sim 10^{-29} $Gauss on the horizon scale at the recombination epoch. Although our rough estimate suggests that the current generation mechanism can work even on smaller scales, more careful investigation is needed to make clear whether it indeed works in a wide range of spatial scales.
description: 10pages, minor corrections, accepted for publication in Class. Quant. Grav
Spatial Bloch oscillations of a quantum gas in a "beat-note" superlattice
Creators: name: Masi, L.
name: Petrucciani, T.
name: Ferioli, G.
name: Semeghini, G.
name: Modugno, G.
name: Inguscio, M.
name: Fattori, M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We report the experimental realization of a new kind of optical lattice for ultra-cold atoms where arbitrarily large separation between the sites can be achieved without renouncing to the stability of ordinary lattices. Two collinear lasers, with slightly different commensurate wavelengths and retroreflected on a mirror, generate a superlattice potential with a periodic "beat-note" profile where the regions with large amplitude modulation provide the effective potential minima for the atoms. To prove the analogy with a standard large spacing optical lattice we study Bloch oscillations of a Bose Einstein condensate with negligible interactions in the presence of a small force. The observed dynamics between sites separated by ten microns for times exceeding one second proves the high stability of the potential. This novel lattice is the ideal candidate for the coherent manipulation of atomic samples at large spatial separations and might find direct application in atom-based technologies like trapped atom interferometers and quantum simulators.
description: 5 pages, 4 figures
Additional file 1 of Dissemination and outcome reporting bias in clinical malaria intervention trials: a cross-sectional analysis
Creators: name: Pool, Lydia
name: Ruiz del Portal Luyten, Claire
name: van der Pluijm, Rob W.
name: Soentjens, Patrick
name: Hanscheid, Thomas
name: Grobusch, Martin P.
name: Visser, Benjamin J.
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Science Policy
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1. Extended methods and results section.
Possibilities for the healthy and nutritional improvement of confectionery and sweet products.
Creators: name: Valli, Veronica <1986>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2014
Subjects: BIO/10 Biochimica

description: The overall objective of this PhD was to investigate the possibility to increase the nutritional value of confectionary products by the use of natural ingredients with healthy functions.
The first part of the thesis focused on the possible substitution of the most characteristic component of confectionary products, i.e. refined sugar. Many natural whole sweetening alternatives are available, though not widely used; the use of molasses, the byproduct of sugar beet and cane production, still rich in healthy components as minerals and phytochemicals is hereby discussed; after having verified molasses effectiveness in oxidative stress counteraction on liver cultured cells, the higher antioxidant capacity of a sweet food prepared with molasses instead of refined sugar was confirmed.
A second step of the project dealt with another main ingredient of various sweet products, namely wheat. Particularly, the exploitation of soft and durum wheat byproducts could be another sustainable strategy to improve the healthy value of confectionery. The isolation of oligosaccharides with bioactive functions form different fractions of the wheat milling stream was studied and the new ingredients were shown to have a high dietary fiber and antioxidants content.
As valid alternative, product developers should consider the appealing and healthy addition of ancient grains flour to sweet baked goods. The possibility of substituting the modern whole durum wheat with the ancient Kamut® khorasan was considered, and the antioxidant and anti-inflammatory effects of these grains were evaluated and compared both in vitro and in vivo on rats.
Finally, since high consumption of confectionery is a risk factor for obesity, a possible strategy for the counteraction of this disease was investigated. The ability of three bioactives in inhibiting adipocytes differentiation was investigated. In fact, theoretically, compounds able to influence adipogenesis could be used in the formulation of functional sweet products and contribute to prevent obesity.
Additional file 3 of The impact of an oral glucose load on IFN-γ-release in persons infected with Mycobacterium tuberculosis
Creators: name: Lorentsson, Hans Johan Niklas
name: Clausen, Christina Reinholdt
name: Faurholt-Jepsen, Daniel
name: Hansen, Katrine Bagge
name: Ritz, Christian
name: Jensen, Sidse Graff
name: Rasmussen, Erik Michael
name: Jørgensen, Anja
name: Lillebaek, Troels
name: Knop, Filip
name: Ravn, Pernille
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences

description: Supplementary Material 3: Supplementary Figure S1. Flow diagram of included participants and OGTTs.
,,Verbindendes und Trennendes an der Grenze"
Creators: name: Landsteiner, Erich
Publisher: name: Österreichische Zeitschrift für Geschichtswissenschaften
Year: 1990

description: Österreichische Zeitschrift für Geschichtswissenschaften, Bd. 1 Nr. 2 (1990): Arbeiter/innen und Arbeitslose
The fermion mass at next-to-leading order in the HTL effective theory
Creators: name: Carrington, M. E.
name: Gynther, A.
name: Pickering, D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The calculation of the real part of a quasi-particle dispersion relation at next-to-leading order in the hard thermal loop effective theory is a very difficult problem. Even though the hard thermal loop effective theory is almost 20 years old, there is only one next-to-leading order calculation of the real part of a quasi-particle dispersion relation in the literature. In this paper, we calculate the fermion mass in QED and QCD at next-to-leading order. For QED the result is M=eT/sqrt{8} * [1-(1.427 \pm 0.02)e/4pi] and for QCD with N_f=2 and N_c=3 we obtain M=gT/sqrt{6} * [1+(1.867 \pm 0.02)g/4pi].
description: 9 pages, 5 figures
Monika Bernold, Andrea Ellmeier, Johanna Gehmacher, Ela Hornung, Gertraud Ratzenböck und Beate Wirthensohn, Familie: Arbeitsplatz oder Ort des Glücks? Historische Schnitte ins Private, Wien 1990.
Creators: name: Zechner, Rosa
Publisher: name: Österreichische Zeitschrift für Geschichtswissenschaften
Year: 1990

description: Österreichische Zeitschrift für Geschichtswissenschaften, Bd. 1 Nr. 3 (1990): bürgerlich/links/intellektuell
Toward Identification of Order Parameters in Skutterudites - a Wonderland of Strong Correlation Physics -
Creators: name: Kuramoto, Yoshio
name: Kiss, Annamaria
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Current status is described toward identifying unconventional order parameters in filled skutterudites with unique ordering phenomena. The order parameters in PrFe$_4$P$_{12}$ and PrRu$_4$P$_{12}$ are discussed in relation to associated crystalline electric field (CEF) states and angular form factors. By phenomenological Landau analysis, it is shown that a scalar order model explains most properties in both PrFe$_4$P$_{12}$ and PrRu$_4$P$_{12}$ with very different magnetic properties. In particular, the highly anisotropic susceptibility induced by uniaxial pressure in PrFe$_4$P$_{12}$ is explained in terms of two types of couplings. In the case of SmRu$_4$P$_{12}$, the main order parameter at low field is identified as magnetic octupoles. A microscopic mechanism is proposed how the dipole and octupole degrees of freedom mix under the point group $T_h$ of skutterudites.
description: To be published in Proc. International Conference on New Quantum Phenomena in Skutterudite and Related Systems (Suppl. J. Phys. Soc. Jpn 78, 2008)
Michael John, Albert Lichtblau, Hg., Schmelztiegel Wien - einst und jetzt. Zur Geschichte und Gegenwart von Zuwanderung und Minderheiten. Aufsätze, Quellen, Kommentare. Mit einer Einleitung von Erich Zöllner, Wien u. Köln 1990.
Creators: name: Eder, Franz X.
Publisher: name: Österreichische Zeitschrift für Geschichtswissenschaften
Year: 1990

description: Österreichische Zeitschrift für Geschichtswissenschaften, Bd. 1 Nr. 3 (1990): bürgerlich/links/intellektuell
Polynomial treewidth forces a large grid-like-minor
Creators: name: Reed, Bruce A.
name: Wood, David R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C83

description: Robertson and Seymour proved that every graph with sufficiently large treewidth contains a large grid minor. However, the best known bound on the treewidth that forces an $\ell\times\ell$ grid minor is exponential in $\ell$. It is unknown whether polynomial treewidth suffices. We prove a result in this direction. A \emph{grid-like-minor of order} $\ell$ in a graph $G$ is a set of paths in $G$ whose intersection graph is bipartite and contains a $K_{\ell}$-minor. For example, the rows and columns of the $\ell\times\ell$ grid are a grid-like-minor of order $\ell+1$. We prove that polynomial treewidth forces a large grid-like-minor. In particular, every graph with treewidth at least $c\ell^4\sqrt{\log\ell}$ has a grid-like-minor of order $\ell$. As an application of this result, we prove that the cartesian product $G\square K_2$ contains a $K_{\ell}$-minor whenever $G$ has treewidth at least $c\ell^4\sqrt{\log\ell}$.
description: v2: The bound in the main result has been improved by using the Lovasz Local Lemma. v3: minor improvements, v4: final section rewritten
Application of Video-to-Video Translation Networks to Computational Fluid Dynamics
Creators: name: Kigure, Hiromitsu
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: In recent years, the evolution of artificial intelligence, especially deep learning, has been remarkable, and its application to various fields has been growing rapidly. In this paper, I report the results of the application of generative adversarial networks (GANs), specifically video-to-video translation networks, to computational fluid dynamics (CFD) simulations. The purpose of this research is to reduce the computational cost of CFD simulations with GANs. The architecture of GANs in this research is a combination of the image-to-image translation networks (the so-called "pix2pix") and Long Short-Term Memory (LSTM). It is shown that the results of high-cost and high-accuracy simulations (with high-resolution computational grids) can be estimated from those of low-cost and low-accuracy simulations (with low-resolution grids). In particular, the time evolution of density distributions in the cases of a high-resolution grid is reproduced from that in the cases of a low-resolution grid through GANs, and the density inhomogeneity estimated from the image generated by GANs recovers the ground truth with good accuracy. Qualitative and quantitative comparisons of the results of the proposed method with those of several super-resolution algorithms are also presented.
description: Published in Frontiers in Artificial Intelligence
Use of bioassays and biomarkers in Daphnia magna to assess the effect of pharmaceutical residuals in freshwater ecosystems
Creators: name: Varano, Valentina <1982>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2014
Subjects: BIO/07 Ecologia

description: Widespread occurrence of pharmaceuticals residues has been reported in aquatic ecosystems. However, their toxic effects on aquatic biota remain unclear. Generally, the acute toxicity has been assessed in laboratory experiments, while chronic toxicity studies have rarely been performed. Of importance appears also the assessment of mixture effects, since pharmaceuticals never occur in waters alone. 
The aim of the present work is to evaluate acute and chronic toxic response in the crustacean Daphnia magna exposed to single pharmaceuticals and mixtures. 
We tested fluoxetine, a SSRI widely prescribed as antidepressant, and propranolol, a non selective β-adrenergic receptor-blocking agent used to treat hypertension. 
Acute immobilization and chronic reproduction tests were performed according to OECD guidelines 202 and 211, respectively. Single chemicals were first tested separately. Toxicity of binary mixtures was then assessed using a fixed ratio experimental design with concentrations based on Toxic Units. The conceptual model of Concentration Addition was adopted in this study, as we assumed that the mixture effect mirrors the sum of the single substances for compounds having similar mode of action. The MixTox statistical method was applied to analyze the experimental results. Results showed a significant deviation from CA model that indicated antagonism between chemicals in both the acute and the chronic mixture tests. 
The study was integrated assessing the effects of fluoxetine on a battery of biomarkers. We wanted to evaluate the organism biological vulnerability caused by low concentrations of pharmaceutical occurring in the aquatic environment. We assessed the acetylcholinesterase and glutathione s-transferase enzymatic activities and the malondialdehyde production. No treatment induced significant alteration of biomarkers with respect to the control.
Biological assays and the MixTox model application proved to be useful tools for pharmaceutical risk assessment. Although promising, the application of biomarkers in Daphnia magna needs further elucidation.
Ein Dorn im Auge
Creators: name: Appelt, Erna
name: Reiterer, Albert F.
Publisher: name: Österreichische Zeitschrift für Geschichtswissenschaften
Year: 1990

description: Österreichische Zeitschrift für Geschichtswissenschaften, Bd. 1 Nr. 3 (1990): bürgerlich/links/intellektuell
Gabriella Hauch, Frau Biedermeier auf den Barrikaden. Frauenleben in der Wiener Revolution 1848, Wien: Verlag für Gesellschaftskritik 1990.
Creators: name: Wettengel, Michael
Publisher: name: Österreichische Zeitschrift für Geschichtswissenschaften
Year: 1992

description: Österreichische Zeitschrift für Geschichtswissenschaften, Bd. 3 Nr. 1 (1992): Offenes Heft
Supplementary files for manuscript titled Human stem cell-derived GABAergic interneurons establish efferent synapses onto host neurons in rat epileptic hippocampus and inhibit spontaneous recurrent seizures
Creators: name: Waloschková, Eliška
Publisher: name: Zenodo
Year: 2021

description: Supplementary files for manuscript titled Human stem cell-derived GABAergic interneurons establish efferent synapses onto host neurons in rat epileptic hippocampus and inhibit spontaneous recurrent seizures.
Scaling Relations for Collision-less Dark Matter Turbulence
Creators: name: Nakamichi, Akika
name: Morikawa, Masahiro
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Many scaling relations are observed for self-gravitating systems in the universe. We explore the consistent understanding of them from a simple principle based on the proposal that the collision-less dark matter fluid terns into a turbulent state, i.e. dark turbulence, after crossing the caustic surface in the non-linear stage. The dark turbulence will not eddy dominant reflecting the collision-less property. After deriving Kolmogorov scaling laws from Navier-Stokes equation by the method similar to the one for Smoluchowski coagulation equation, we apply this to several observations such as the scale-dependent velocity dispersion, mass-luminosity ratio, magnetic fields, and mass-angular momentum relation, power spectrum of density fluctuations. They all point the concordant value for the constant energy flow per mass: $0.3 cm^2/sec^3$, which may be understood as the speed of the hierarchical coalescence process in the cosmic structure formation.
description: 26 pages, 6 figures
Automatic Generation of Machine Learning Synthetic Data Using ROS
Creators: name: Hart, Kyle M.
name: Goodman, Ari B.
name: O'Shea, Ryan P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Data labeling is a time intensive process. As such, many data scientists use various tools to aid in the data generation and labeling process. While these tools help automate labeling, many still require user interaction throughout the process. Additionally, most target only a few network frameworks. Any researchers exploring multiple frameworks must find additional tools orwrite conversion scripts. This paper presents an automated tool for generating synthetic data in arbitrary network formats. It uses Robot Operating System (ROS) and Gazebo, which are common tools in the robotics community. Through ROS paradigms, it allows extensive user customization of the simulation environment and data generation process. Additionally, a plugin-like framework allows the development of arbitrary data format writers without the need to change the main body of code. Using this tool, the authors were able to generate an arbitrarily large image dataset for three unique training formats using approximately 15 min of user setup time and a variable amount of hands-off run time, depending on the dataset size. The source code for this data generation tool is available at https://github.com/Navy-RISE-Lab/nn_data_collection
description: DISTRIBUTION STATEMENT A. Approved for public release: distribution unlimited. NAWCAD-LKE Release Number 2021-72. Published in HCI International 2021 by Springer. The final authenticated version is available online at https://doi.org/10.1007/978-3-030-77772-2_21
Dynamics of a large class of satellites with deploying flexible appendages
Creators: name: Lips, Kenneth Wayne
Publisher: name: University of British Columbia
Year: 2010

description: A general formulation is presented for the librational dynamics of satellites having an arbitrary number, type, and orientation of flexible appendages, each capable of deploying independently. In particular, the case of beam-type appendages deploying from a satellite in an arbitrary orbit is considered. The governing nonlinear, nonautonomous, coupled system equations are not amenable to any closed form solution, hence are integrated numerically using a digital computer. Effect of important system parameters is assessed through illustrative configurations representing a large class of gravity gradient and spinning spacecraft. Rather than accumulation of a large amount of data, the emphasis is on evolution of a generalized and organized methodology for coping with such complex dynamical systems. The analysis examines the degree of interaction between flexibility, deployment, and attitude motion through systematic variation of system parameters. A study of appendage vibration characteristics suggest that an orbiting beam cannot be treated simply as a rotating beam because of the presence of the gravitational field. Rate of rotation plays a dominant role in stiffening the beam as evidenced by the noticeable straightening of the eigen-functions for even relatively low spin rates (2 rpm). Results also show that the deployment-related Coriolis force can play a major role in causing large in-plane deformations. This implies that, in some cases, deployment should be carried out in stages so as to limitthe time available to build up large amplitude oscillations. Investigation of librational response shows that the coupled character of the motion can significantly affect system dynamics, hence caution should be exercised in utilizing results based on simplified planar analyses. Depending on orbital parameters and physical properties of booms, there are critical values of appendage length and deployment rate for which the satellite can tumble over. On the other hand, in general, appendage offset and shifting center of mass were found to have insignificant effect on response for the cases considered. This may permit considerable simplification of the complex hybrid equations with associated saving in computational time and effort. Also, the small amplitude oscillations evident both with the gravity gradient and spin-stabilized configurations tends to substantiate the adoption of a linear vibration analysis. The simulation of such diverse classes of satellites with relative ease demonstrates the versatility of the formulation.
Koszul duality in deformation quantization and Tamarkin's approach to Kontsevich formality
Creators: name: Shoikhet, Boris
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Algebra (math.QA)
subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics

description: Let $α$ be a quadratic Poisson bivector on a vector space $V$. Then one can also consider $α$ as a quadratic Poisson bivector on the vector space $V^*[1]$. Fixed a universal deformation quantization (prediction some weights to all Kontsevich graphs [K97]), we have deformation quantization of the both algebras $S(V^*)$ and $Λ(V)$. These are graded quadratic algebras, and therefore Koszul algebras. We prove that for some universal deformation quantization, independent on $α$, these two algebras are Koszul dual. We characterize some deformation quantizations for which this theorem is true in the framework of the Tamarkin's theory [T1].
description: 49 pages, 2 figures
Magnetic properties of the charge density wave compounds RTe3, R=Y, La, Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er & Tm
Creators: name: Ru, N.
name: Chu, J. -H.
name: Fisher, I. R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The antiferromagnetic transition is investigated in the rare-earth (R) tritelluride RTe3 family of charge density wave (CDW) compounds via specific heat, magnetization and resistivity measurements. Observation of the opening of a superzone gap in the resistivity of DyTe3 indicates that additional nesting of the reconstructed Fermi surface in the CDW state plays an important role in determining the magnetic structure.
description: 4 pages, 5 figures
Carlo Ginzburg, Hexensabbat. Entzifferung einer nächtlichen Geschichte (aus dem Italienischen von Martina Kemper), Berlin: Verlag Klaus Wagenbach 1990.
Creators: name: Johansen, Jens Chr. V.
Publisher: name: Österreichische Zeitschrift für Geschichtswissenschaften
Year: 1992

description: Österreichische Zeitschrift für Geschichtswissenschaften, Bd. 3 Nr. 3 (1992): Technikgeschichte
Constructing Perfect Steganographic Systems
Creators: name: Ryabko, Boris
name: Ryabko, Daniil
Publisher: name: arXiv
Year: 2008
Subjects: subject: Cryptography and Security (cs.CR)
subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: We propose steganographic systems for the case when covertexts (containers) are generated by a finite-memory source with possibly unknown statistics. The probability distributions of covertexts with and without hidden information are the same; this means that the proposed stegosystems are perfectly secure, i.e. an observer cannot determine whether hidden information is being transmitted. The speed of transmission of hidden information can be made arbitrary close to the theoretical limit - the Shannon entropy of the source of covertexts. An interesting feature of the suggested stegosystems is that they do not require any (secret or public) key. At the same time, we outline some principled computational limitations on steganography. We show that there are such sources of covertexts, that any stegosystem that has linear (in the length of the covertext) speed of transmission of hidden text must have an exponential Kolmogorov complexity. This shows, in particular, that some assumptions on the sources of covertext are necessary.
Numerical modeling of the Alto Tiberina low angle normal fault
Creators: name: Vadacca, Luigi <1983>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2014
Subjects: GEO/10 Geofisica della terra solida

description: The aim of this Thesis is to obtain a better understanding of the mechanical behavior of the active Alto Tiberina normal fault (ATF). Integrating geological, geodetic and seismological data, we perform 2D and 3D quasi-static and dynamic mechanical models to simulate the interseismic phase and rupture dynamic of the ATF. Effects of ATF locking depth, synthetic and antithetic fault activity, lithology and realistic fault geometries are taken in account. The 2D and 3D quasi-static model results suggest that the deformation pattern inferred by GPS data is consistent with a very compliant ATF zone (from 5 to 15 km) and Gubbio fault activity. The presence of the ATF compliant zone is a first order condition to redistribute the stress in the Umbria-Marche region; the stress bipartition between hanging wall (high values) and footwall (low values) inferred by the ATF zone activity could explain the microseismicity rates that are higher in the hanging wall respect to the footwall. The interseismic stress build-up is mainly located along the Gubbio fault zone and near ATF patches with higher dip (30°
The Hamiltonian formulation of General Relativity: myths and reality
Creators: name: Kiriushcheva, N.
name: Kuzmin, S. V.
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A conventional wisdom often perpetuated in the literature states that: (i) a 3+1 decomposition of space-time into space and time is synonymous with the canonical treatment and this decomposition is essential for any Hamiltonian formulation of General Relativity (GR); (ii) the canonical treatment unavoidably breaks the symmetry between space and time in GR and the resulting algebra of constraints is not the algebra of four-dimensional diffeomorphism; (iii) according to some authors this algebra allows one to derive only spatial diffeomorphism or, according to others, a specific field-dependent and non-covariant four-dimensional diffeomorphism; (iv) the analyses of Dirac [Proc. Roy. Soc. A 246 (1958) 333] and of ADM [Arnowitt, Deser and Misner, in "Gravitation: An Introduction to Current Research" (1962) 227] of the canonical structure of GR are equivalent. We provide some general reasons why these statements should be questioned. Points (i-iii) have been shown to be incorrect in [Kiriushcheva et al., Phys. Lett. A 372 (2008) 5101] and now we thoroughly re-examine all steps of the Dirac Hamiltonian formulation of GR. We show that points (i-iii) above cannot be attributed to the Dirac Hamiltonian formulation of GR. We also demonstrate that ADM and Dirac formulations are related by a transformation of phase-space variables from the metric $g_{μν}$ to lapse and shift functions and the three-metric $g_{km}$, which is not canonical. This proves that point (iv) is incorrect. Points (i-iii) are mere consequences of using a non-canonical change of variables and are not an intrinsic property of either the Hamilton-Dirac approach to constrained systems or Einstein's theory itself.
description: References are added and updated, Introduction is extended, Subsection 3.5 is added, 83 pages; corresponds to the published version
A feather on the hat: Tracing the giant stellar stream around the Sombrero galaxy
Creators: name: Martinez-Delgado, David
name: Roman, Javier
name: Erkal, Denis
name: Schirmer, Mischa
name: Roca-Fabrega, Santi
name: Laine, Seppo
name: Donatiello, Giuseppe
name: Jimenez, Manuel
name: Malin, David
name: Carballo-Bello, Julio A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Recent evidence of extremely metal-rich stars found in the Sombrero galaxy (M104) halo suggests that this galaxy has undergone a recent major merger with a relatively massive galaxy. In this paper, we present wide-field deep images of the M104 outskirts obtained with a 18-cm amateur telescope with the purpose of detecting any coherent tidal features from this possible major merger. Our new data, together with a model of the M104 inner halo and scattered light from stars around the field, allow us to trace for the first time the full path of the stream on both sides of the disk of the galaxy. We fully characterize the ring-like tidal structure and we confirm that this is the only observable coherent substructure in the inner halo region. This result is in agreement with the hypothesis that M104 was created by a wet major merger more than 3.5 Gyr ago that heated up the stellar population, blurring all old substructure. We generated a set of numerical models that reproduce the formation of the observed tidal structure. Our best fit model suggests the formation of this stream in the last 3 Gyr is independent of the wet major merger that created the M104 system. Therefore, the formation of the tidal stream can put a constraint on the time when the major merger occurred.
description: 10 pages, 5 figures, submitted to MNRAS
Generation and Tunability of Supermodes in Tamm Plasmon Topological Superlattices
Creators: name: Qiao, Tong
name: Hu, Mengying
name: Jiang, Xi
name: Wang, Qiang
name: Zhu, Shining
name: Liu, Hui
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: In this study, we propose and experimentally demonstrate a novel kind of Tamm plasmon topological superlattice (TTS) by engineering Tamm photonic crystals (TPCs) belonging to a different class of topology. Utilizing specifically designed double-layer metasurfaces etching on planar multilayered photonic structures, the TPC that supports the Tamm plasmon photonic bandgap is realized in the visible regime. Through the coupling of topological interface states existing between different TPCs, hybrid topological interface states of Tamm plasmon, called supermodes, are obtained that can be fully described by a tight-binding model. Meanwhile, we can achieve a tunable bandwidth of supermodes via varying the etching depth difference between double-layer metasurfaces. We show that the bandwidth decreases with the increase of etching depth difference, resulting in a nearly flat dispersion of supermodes with strong localization regardless of excitation angles. All the results are experimentally verified by measuring angular-resolved reflectance spectra. The TTS and supermodes proposed here open a new pathway for the manipulation of Tamm plasmons, based on which various promising applications such as integrated photonic devices, optical sensing, and enhancing light-matter interactions can be realized.
description: 23 pages, 4 figures. ACS Photonics (online)
Arno Borst, Computus. Zeit und Zahl in der Geschichte Europas, Berlin: Klaus Wagenbach 1990.
Creators: name: Amann, Anton
Publisher: name: Österreichische Zeitschrift für Geschichtswissenschaften
Year: 1992

description: Österreichische Zeitschrift für Geschichtswissenschaften, Bd. 3 Nr. 3 (1992): Technikgeschichte
Spectral parameterization for the power sums of quantum supermatrix
Creators: name: Gurevich, Dimitri
name: Pyatov, Pavel
name: Saponov, Pavel
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics

description: A parameterization for the power sums of GL(m|n) type quantum (super)matrix is obtained in terms of it's spectral values.
description: 12 pages. Submitted to the Proceedings of the international workshop on Classical and Quantum Integrable Systems, January 21-24, 2008, Protvino, Russia
Alfred Kohler, Das Reich im Kampf um die Hegemonie in Europa 1521-1648 (Enzyklopädie Deutscher Geschichte, Bd. 6) München: Oldenbourg 1990.
Creators: name: Vogel, Brigitte
Publisher: name: Österreichische Zeitschrift für Geschichtswissenschaften
Year: 1992

description: Österreichische Zeitschrift für Geschichtswissenschaften, Bd. 3 Nr. 3 (1992): Technikgeschichte
Die groben Netze der Historiker
Creators: name: Duden, Barbara
name: Döcker, Ulrike
name: Svoboda, Angelika
Publisher: name: Österreichische Zeitschrift für Geschichtswissenschaften
Year: 1992

description: Österreichische Zeitschrift für Geschichtswissenschaften, Bd. 3 Nr. 3 (1992): Technikgeschichte
Volker Heins, Strategien der Legitimation. Das Legitimationsproblem in der politischen Theorie, Münster: Westfälisches Dampfboot 1990.
Creators: name: Schaller, Christian
Publisher: name: Österreichische Zeitschrift für Geschichtswissenschaften
Year: 1992

description: Österreichische Zeitschrift für Geschichtswissenschaften, Bd. 3 Nr. 3 (1992): Technikgeschichte
Quasistatic rheology, force transmission and fabric properties of a packing of irregular polyhedral particles
Creators: name: Azema, Émilien
name: RadjaÏ, F.
name: Saussine, G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: By means of contact dynamics simulations, we investigate a dense packing composed of polyhedral particles under quasistatic shearing. The effect of particle shape is analyzed by comparing the polyhedra packing with a packing of similar characteristics except for the spherical shape of the particles. The polyhedra packing shows higher shear stress and dilatancy but similar stress-dilatancy relation compared to the sphere packing. A harmonic approximation of granular fabric is presented in terms of branch vectors (connecting particle centers) and contact force components along and perpendicular to the branch vectors. It is found that the origin of enhanced shear strength of the polyhedra packing lies in its higher force anisotropy with respect to the sphere packing which has a higher fabric anisotropy. Various contact types (face-vertex, face-face, etc) contribute differently to force transmission and fabric anisotropy. In particular, most face-face contacts belong to strong force chains along the major principal stress direction whereas vertex-face contacts are correlated with weak forces and oriented on average along the minor principal stress direction in steady shearing.
Test of the Littlest Higgs model through the correlation among W boson, top quark and Higgs masses
Creators: name: Kang, Sin Kyu
name: Kim, C. S.
name: Park, Jubin
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Motivated by the recent precision measurements of the W boson mass and top quark mass, we test the Littlest Higgs model by confronting the prediction of M_W with the current and prospective measurements of M_W and M_t as well as through the correlation among M_W, M_t and Higgs mass. We argue that the current values and accuracy of M_W and M_t measurements tend to favor the Littlest Higgs model over the standard model, although the most recent electroweak data may appear to be consistent with the standard model prediction. In this analysis, the upper bound on the global SU(5) symmetry breaking scale turned out to be 26.3 TeV. We also discuss how the masses of the heavy gauge boson M_B in the Littlest Higgs model can be predicted from the constraints on the model parameters.
description: 18 pages, 3 figures, Latex
Multivariate Jacobi and Laguerre polynomials, infinite-dimensional extensions, and their probabilistic connections with multivariate Hahn and Meixner polynomials
Creators: name: Griffiths, Robert C.
name: Spanó, Dario
Publisher: name: arXiv
Year: 2008
Subjects: subject: Probability (math.PR)
subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: Multivariate versions of classical orthogonal polynomials such as Jacobi, Hahn, Laguerre and Meixner are reviewed and their connection explored by adopting a probabilistic approach. Hahn and Meixner polynomials are interpreted as posterior mixtures of Jacobi and Laguerre polynomials, respectively. By using known properties of gamma point processes and related transformations, a new infinite-dimensional version of Jacobi polynomials is constructed with respect to the size-biased version of the Poisson--Dirichlet weight measure and to the law of the gamma point process from which it is derived.
description: Published in at http://dx.doi.org/10.3150/10-BEJ305 the Bernoulli (http://isi.cbs.nl/bernoulli/) by the International Statistical Institute/Bernoulli Society (http://isi.cbs.nl/BS/bshome.htm)
Normal forms for real quadratic forms
Creators: name: Kroetz, Bernhard
name: Schlichtkrull, Henrik
Publisher: name: arXiv
Year: 2008
Subjects: subject: Representation Theory (math.RT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 15A63

description: We investigate the non-diagonal normal forms of a quadratic form on R^n, in particular for n=3. For this case it is shown that the set of normal forms is the closure of a 5-dimensional submanifold in the 6-dimensional Grassmannian of 2-dimensional subspaces of \R^5.
Perspective Drawing of Surfaces with Line Hidden Line Elimination, Dibujando Superficies En Perspectiva Con Eliminacion De Lineas Ocultas
Creators: name: Vega-Paez, Ignacio
name: Ortega, Jose Angel
name: Pulido, Georgina G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Graphics (cs.GR)
subject: Computational Geometry (cs.CG)
subject: FOS: Computer and information sciences

description: An efficient computer algorithm is described for the perspective drawing of a wide class of surfaces. The class includes surfaces corresponding lo single-valued, continuous functions which are defined over rectangular domains. The algorithm automatically computes and eliminates hidden lines. The number of computations in the algorithm grows linearly with the number of sample points on the surface to be drawn. An analysis of the algorithm is presented, and extensions lo certain multi-valued functions are indicated. The algorithm is implemented and tested on .Net 2.0 platform that left interactive use. Running times are found lo be exceedingly efficient for visualization, where interaction on-line and view-point control, enables effective and rapid examination of a surfaces from many perspectives.
Nondiscriminatory Propagation on Trees
Creators: name: Severini, Simone
Publisher: name: arXiv
Year: 2008
Subjects: subject: Combinatorics (math.CO)
subject: Quantum Physics (quant-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We consider a discrete-time dynamical process on graphs, firstly introduced in connection with a protocol for controlling large networks of spin 1/2 quantum mechanical particles [Phys. Rev. Lett. 99, 100501 (2007)]. A description is as follows: each vertex of an initially selected set has a packet of information (the same for every element of the set), which will be distributed among vertices of the graph; a vertex v can pass its packet to an adjacent vertex w only if w is its only neighbour without the information. By mean of examples, we describe some general properties, mainly concerning homeomorphism, and redundant edges. We prove that the cardinality of the smallest sets propagating the information in all vertices of a balanced m-ary tree of depth k is exactly (m^{k+1}+(-1)^{k})/(m+1). For binary trees, this number is related to alternating sign matrices.
description: 5 pages, 7 figures
Subvacuum effects of the quantum field on the dynamics of a test particle
Creators: name: Wu, Tai-Hung
name: Hsiang, Jen-Tsung
name: Lee, Da-Shin
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the effects of the electromagnetic subvacuum fluctuations on the dynamics of a nonrelativistic charged particle in a wavepacket. The influence from the quantum field is expected to give an additional effect to the velocity uncertainty of the particle. In the case of a static wavepacket, the observed velocity dispersion is smaller in the electromagnetic squeezed vacuum background than in the normal vacuum background. This leads to the subvacuum effect. The extent of reduction in velocity dispersion associated with this subvacuum effect is further studied by introducing a switching function. It is shown that the slow switching process may make this subvacuum effect insignificant. We also point out that when the center of the wavepacket undergoes non-inertial motion, reduction in the velocity dispersion becomes less effective with its evolution, no matter how we manipulate the nonstationary quantum noise via the choice of the squeeze parameters. The role of the underlying fluctuation-dissipation relation is discussed.
description: 30 pages, 2 figures
Additional file 1 of Personalized prediction of immunotherapy response in lung cancer patients using advanced radiomics and deep learning
Creators: name: Liao, Chien-Yi
name: Chen, Yuh-Min
name: Wu, Yu-Te
name: Chao, Heng-Sheng
name: Chiu, Hwa-Yen
name: Wang, Ting-Wei
name: Chen, Jyun-Ru
name: Shiao, Tsu-Hui
name: Lu, Chia-Feng
Publisher: name: figshare
Year: 2024
Subjects: Space Science
Medicine
Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified
Information Systems not elsewhere classified
Cancer

description: Supplementary Material 1
title: Front Matter, Table of Contents, Preface, Conference Organization
Creators: name: Dell, Holger
name: Nederlof, Jesper
Publisher: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Year: 2022
Subjects: subject: Front Matter
subject: Table of Contents
subject: Preface
subject: Conference Organization
subject: Theory of computation → Parameterized complexity and exact algorithms

description: Front Matter, Table of Contents, Preface, Conference Organization
description: LIPIcs, Vol. 249, 17th International Symposium on Parameterized and Exact Computation (IPEC 2022), pages 0:i-0:xviii
Orbital Ordering and Magnetic Interactions in BiMnO$_3$
Creators: name: Solovyev, I. V.
name: Pchelkina, Z. V.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: This work is devoted to the analysis of orbital patterns and related to them interatomic magnetic interactions in centrosymmetric monoclinic structures of BiMnO$_3$, which have been recently determined experimentally. First, we set up an effective lattice fermion model for the manganese 3d bands and derive parameters of this model entirely from first-principles electronic structure calculations. Then, we solve this model in terms of the mean-field Hartree-Fock method and derive parameters of interatomic magnetic interactions between Mn ions. We argue that although nearest-neighbor interactions favors the ferromagnetism, they compete with longer-range antiferromagnetic (AFM) interactions, the existence of which is directly related with the peculiar geometry of the orbital ordering pattern realized in BiMnO$_3$ below 474 K. These AFM interactions favor an AFM phase, which breaks the inversion symmetry. The formation of the AFM phase is assisted by the orbital degrees of freedom, which tend to adjust the nearest-neighbor magnetic interactions in the direction, which further stabilizes this phase. We propose that the multiferroelectric behavior, observed in BiMnO$_3$, may be related with the emergence of the AFM phase under certain conditions.
description: 12 pages, 12 figures
Lyonetiinae Stainton 1854
Creators: name: Pohl, Greg
name: Anweiler, Gary
name: Schmidt, Christian
name: Kondla, Norbert
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Lyonetiidae

description: Lyonetiinae 124.1 * P Lyonetia saliciella Busck, 1904 M Jun – E Aug M – – 125 * R Lyonetia prunifoliella Hübner, 1796 L May – L Jul – B g T: Schmitt et al. (1996) L:? Schmitt et al. (1996), Pohl et al. (2004b) C: NFRC 126 * R Paraleucoptera albella (Chambers, 1871) Jun – Jul – b g Cottonwood Leafminer L: None C: NFRC Gelechioidea
description: Published as part of Pohl, Greg, Anweiler, Gary, Schmidt, Christian & Kondla, Norbert, 2010, An annotated list of the Lepidoptera of Alberta, Canada, pp. 1-549 in ZooKeys 38 (38) on page 66, DOI: 10.3897/zookeys.38.383, http://zenodo.org/record/576629
description: {"references": ["Schmitt JJ, Brown MV, Davis DR (1996) Taxonomy, morphology, and biology of Lyonetia prunifoliella (Lepidoptera: Lyonetiidae), a leafminer of apple. Annals of the Entomological Society of America 89: 334 - 345.", "Pohl GR, Langor DW, Landry J-F, Spence JR (2004 b) Lepidoptera of the Boreal Mixedwood Forest near Lac La Biche, Alberta, including new provincial records. Canadian Field-Naturalist 118: 530 - 549."]}
Susanne zur Nieden, Alltag im Ausnahmezustand. Frauentagebücher im zerstörten Deutschland 1943 bis 1945, Berlin: Orlanda Frauenverlag 1993.
Creators: name: Bernold, Monika
Publisher: name: Österreichische Zeitschrift für Geschichtswissenschaften
Year: 1994

description: Österreichische Zeitschrift für Geschichtswissenschaften, Bd. 5 Nr. 4 (1994): Biographie und Geschichte