cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
CP observables with spin-spin correlations in chargino production
Creators: name: Bartl, A.
name: Hohenwarter-Sodek, K.
name: Kernreiter, T.
name: Kittel, O.
name: Terwort, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the CP-violating terms of the spin-spin correlations in chargino production e+e- -> chi^+/-_1 chi^-/+_2, and their subsequent two-body decays into sneutrinos plus leptons. We propose novel CP-sensitive observables with the help of T-odd products of the spin-spin terms. These terms depend on the polarizations of both charginos, with one polarization perpendicular to the production plane. We identify two classes of CP-sensitive observables; one requires the reconstruction of the production plane, the other not. Our framework is the Minimal Supersymmetric Standard Model with complex parameters.
description: 21pp; discussion of background processes improved, references added; final version for Nucl. Phys. B
Moldmate identification in pre-19th-century European paper using quantitative analysis of watermarks, chain line intervals, and laid line density
Creators: name: Gorske, Sara
name: Johnson, Charles
name: Sethares, William
name: Ellis, Margaret
name: Messier, Paul
Publisher: name: International Journal for Digital Art History
Year: 2021

description: Handmade laid paper has the important quality that every sheet of paper formed on the same papermaking mold retains a nearly identical imprint of the mold’s wire structure. These “moldmates” are identified by analyzing the recorded wire features, which are visible using transmitted light. When visual analysis is not sufficient to distinguish moldmates, three features of the mold’s wire mesh can be quantitatively analyzed using image processing techniques: watermark shape and placement, chain line intervals, and laid line density, for which a new method of analysis is introduced here. Using signal processing procedures, the frequency of the laid lines across a sheet of paper was found to fluctuate in a pattern unique to that mold. These quantitative methods were tested on a sample set of blank sheets from a 1536 edition of De re militari by Vegetius; computational analysis using any one of the three features was able to distinguish between four molds used in the group of papers. These results demonstrate that any of these techniques can be chosen as appropriate to determine moldmates from within a set of laid paper, regardless of size or the inclusion of a full watermark.
description: International Journal for Digital Art History, No. 5 (2020): History of Digital Art
Miscibility in a degenerate fermionic mixture induced by linear coupling
Creators: name: Adhikari, Sadhan K.
name: Malomed, Boris A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We consider a one-dimensional mean-field-hydrodynamic model of a two-component degenerate Fermi gas in an external trap, each component representing a spin state of the same atom. We demonstrate that the interconversion between them (linear coupling), imposed by a resonant electromagnetic wave, transforms the immiscible binary gas into a miscible state, if the coupling constant, $κ$, exceeds a critical value, $ κ_{\mathrm{cr}}$. The effect is predicted in a variational approximation, and confirmed by numerical solutions. Unlike the recently studied model of a binary BEC with the linear coupling, the components in the immiscible phase of the binary fermion mixture never fill two separated domains with a wall between them, but rather form anti-locked ($π$ -phase-shifted) density waves. Another difference from the bosonic mixture is spontaneous breaking of symmetry between the two components in terms of numbers of atoms in them, $N_{1}$ and $N_{2}$. The latter effect is characterized by the parameter $ν\equiv (N_{1}-N_{2})/(N_{1}+N_{2}) $ (only $N_{1}+N_{2}$ is a conserved quantity), the onset of miscibility at $κ\geq κ_{\mathrm{cr}}$ meaning a transition to $ν\equiv 0$. At $κ
description: 9 pages, 12 figures, PRA (in press)
Elicitation of purpose clauses
Creators: name: Parker, Verdena
name: Escamilla, Ramón
name: Newbold, Lindsey
name: Spence, Justin
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: hup

description: Audio file VP-070412-01: Elicitation of purpose clauses based on Karsten Schmidtke-Bode's book "A Typology of Purpose Clauses" (Benjamins, 2009).
Equilibrium protein adsorption on nanometric vegetable-oil hybrid film/water interface using neutron reflectometry
Creators: name: Theodoratou, Antigoni
name: Lee, Lay-Theng
name: Oberdisse, Julian
name: Aubert-Pouëssel, Anne
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Nanofilms of thickness of about two nanometers have been formed at the air-water interface using functionalized castor oil (ICO) with cross-linkable silylated groups. These hybrid films represent excellent candidates for replacing conventional polymeric materials in biomedical applications, but they need to be optimized in terms of biocompatibility which is highly related to protein adsorption. Neutron reflectivity has been used to study the adsorption of two model proteins, bovine serum albumin and lysozyme, at the silylated oil (ICO)-water interface in the absence and presence of salt at physiologic ionic strength and pH and at different protein concentrations. These measurements are compared to adsorption at the air-water interface. While salt enhances adsorption by a similar degree at the air-water and the oil-water interface, the impact of the oil film is significant, with adsorption at the oil-water interface three-to four-fold higher compared to the air-water interface. Under these conditions, the concentration profiles of the adsorbed layers for both proteins indicate multilayer adsorption: The thickness of the outer layer (oil-side) is close to the dimension of the minor axis of the protein molecule, ~ 30 Å, suggesting a side-way orientation with the long axis parallel to the interface. The inner layer extends to 55-60 Å. Interestingly, in all cases, the composition of oil film remains intact without significant protein penetration into the film. The optimal adsorption on these nanofilms, 1.7-2.0 mg$\bullet$m-2 , is comparable to the results obtained recently on thick solid cross-linked films using quartz crystal microbalance and atomic force microscopy, showing in particular that adsorption at these ICO film interfaces under standard physiological conditions is non-specific. These results furnish useful information towards the elaboration of vegetable oil-based nanofilms, in direct nanoscale applications or as precursor films in the fabrication of thicker macroscopic films for biomedical applications. 2
description: Langmuir, 2019
Discrete breathers in protein structures
Creators: name: Piazza, Francesco
name: Sanejouand, Yves-Henri
Publisher: name: arXiv
Year: 2008
Subjects: subject: Biomolecules (q-bio.BM)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Recently, using a numerical surface cooling approach, we have shown that highly energetic discrete breathers (DB) can form in the stiffest parts of nonlinear network models of large protein structures. In the present study, using an analytical approach, we extend our previous results to low-energy discrete breathers as well as to smaller proteins We confirm and further scrutinize the striking site selectiveness of energy localisation in the presence of spatial disorder. In particular, we find that, as a sheer consequence of disorder, a non-zero energy gap for exciting a DB at a given site either exists or not. Remarkably, in the former case, the gaps arise as result of the impossibility of exciting small-amplitude modes in the first place. On the contrary, in the latter case, a small subset of linear edge modes act as accumulation points, whereby DBs can be continued to arbitrary small energies, while unavoidably approaching one of such normal modes. In particular, the case of the edge mode seems peculiar, its dispersion relation being simple and little system-dependent. Concerning the structure-dynamics relationship, we find that the regions of protein structures where DBs form easily (zero or small gaps) are unfailingly the most highly connected ones, also characterized by weak local clustering. Remarkably, a systematic analysis on a large database of enzyme structures reveals that amino-acid residues involved in enzymatic activity tend to be located in such regions. This finding reinforces the idea that localised modes of nonlinear origin may play an important biological role, e.g. by providing a ready channel for energy storage and/or contributing to lower energy barriers of chemical reactions.
description: 26 pages, 8 figures, to be published in Physical Biology, 2008 (IOP)
Sequent-Type Calculi for Systems of Nonmonotonic Paraconsistent Logics
Creators: name: Geibinger, Tobias
name: Tompits, Hans
Publisher: name: arXiv
Year: 2020
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences
subject: F.4.1; I.2.3; I.2.4

description: Paraconsistent logics constitute an important class of formalisms dealing with non-trivial reasoning from inconsistent premisses. In this paper, we introduce uniform axiomatisations for a family of nonmonotonic paraconsistent logics based on minimal inconsistency in terms of sequent-type proof systems. The latter are prominent and widely-used forms of calculi well-suited for analysing proof search. In particular, we provide sequent-type calculi for Priest's three-valued minimally inconsistent logic of paradox, and for four-valued paraconsistent inference relations due to Arieli and Avron. Our calculi follow the sequent method first introduced in the context of nonmonotonic reasoning by Bonatti and Olivetti, whose distinguishing feature is the use of a so-called rejection calculus for axiomatising invalid formulas. In fact, we present a general method to obtain sequent systems for any many-valued logic based on minimal inconsistency, yielding the calculi for the logics of Priest and of Arieli and Avron as special instances.
description: In Proceedings ICLP 2020, arXiv:2009.09158
Generalized Susskind-Glogower coherent states
Creators: name: Gazeau, Jean-Pierre
name: Hussin, Véronique
name: Moran, James
name: Zelaya, Kevin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Susskind-Glogower coherent states, whose Fock expansion coefficients include Bessel functions, have recently attracted considerable attention for their optical properties. Nevertheless, identity resolution is still an open question, which is an essential mathematical property that defines an overcomplete basis in the Fock space and allows a coherent state quantization map. In this regard, the modified Susskind-Glogower coherent states have been introduced as an alternative family of states that resolve the identity resolution. In the present manuscript, the quantization map related to the modified Susskind-Glogower coherent states is exploited, which naturally leads to a particular representation of the $\mathfrak{su}(1,1)$ Lie algebra in its discrete series. The latter provides evidence about further generalizations of coherent states, built from the Susskind-Glogower ones by extending the indexes of the Bessel functions of the first kind and, alternatively, by employing the modified Bessel functions of the second kind. In this form, the new families of Susskind-Glogower-I and Susskind-Glogower-II coherent states are introduced. The corresponding quantization maps are constructed so that they lead to general representations of elements of the $\mathfrak{su}(1,1)$ and $\mathfrak{su}(2)$ Lie algebras as generators of the SU$(1,1)$ and SU$(2)$ unitary irreducible representations respectively. For completeness, the optical properties related to the new families of coherent states are explored and compared with respect to some well-known optical states.
Persistence to high temperatures of interlayer coherence in an organic superconductor
Creators: name: Singleton, John
name: Goddard, PA
name: Ardavan, A
name: Coldea, AI
name: Blundell, SJ
name: McDonald, RD
name: Tozer, S
name: Schlueter, JA
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The interlayer magnetoresistance $ρ_{zz}$ of the organic metal \cuscn is studied in fields of up to 45 T and at temperatures $T$ from 0.5 K to 30 K. The peak in $ρ_{zz}$ seen in in-plane fields, a definitive signature of interlayer coherence, remains to $T$s exceeding the Anderson criterion for incoherent transport by a factor $\sim 30$. Angle-dependent magnetoresistance oscillations are modeled using an approach based on field-induced quasiparticle paths on a 3D Fermi surface, to yield the $T$ dependence of the scattering rate $τ^{-1}$. The results suggest that $τ^{-1}$ does not vary strongly over the Fermi surface, and that it has a $T^2$ dependence due to electron-electron scattering.
Enhancing Linear Algebraic Computation of Logic Programs Using Sparse Representation
Creators: name: Quoc, Tuan Nguyen
name: Inoue, Katsumi
name: Sakama, Chiaki
Publisher: name: arXiv
Year: 2020
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Symbolic Computation (cs.SC)
subject: FOS: Computer and information sciences

description: Algebraic characterization of logic programs has received increasing attention in recent years. Researchers attempt to exploit connections between linear algebraic computation and symbolic computation in order to perform logical inference in large scale knowledge bases. This paper proposes further improvement by using sparse matrices to embed logic programs in vector spaces. We show its great power of computation in reaching the fixpoint of the immediate consequence operator from the initial vector. In particular, performance for computing the least models of definite programs is dramatically improved in this way. We also apply the method to the computation of stable models of normal programs, in which the guesses are associated with initial matrices, and verify its effect when there are small numbers of negation. These results show good enhancement in terms of performance for computing consequences of programs and depict the potential power of tensorized logic programs.
description: In Proceedings ICLP 2020, arXiv:2009.09158
Alpha-Vacua, Black Holes, and AdS/CFT
Creators: name: Chamblin, Andrew
name: Michelson, Jeremy
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The Schwarzschild, Schwarzschild-AdS, and Schwarzschild-de Sitter solutions all admit freely acting discrete involutions which commute with the continuous symmetries of the spacetimes. Intuitively, these involutions correspond to the antipodal map of the corresponding spacetimes. In analogy with the ordinary de Sitter example, this allows us to construct new vacua by performing a Mottola-Allen transform on the modes associated with the Hartle-Hawking, or Euclidean, vacuum. These vacua are the `alpha'-vacua for these black holes. The causal structure of a typical black hole may ameliorate certain difficulties which are encountered in the case of de Sitter alpha-vacua. For Schwarzschild-AdS black holes, a Bogoliubov transformation which mixes operators of the two boundary CFT's provides a construction of the dual CFT alpha-states. Finally, we analyze the thermal properties of these vacua.
description: 40 pages REVTeX and AMSLaTeX, 17 black&white eps figures. v3: references added. v4: details of the pinch singularity avoidance for the string quantization of the Rindler space toy model have been added in both the body of the paper and in a new 7 page appendix. Other clarifications and references added. This is the version accepted for publication in Class. Quant. Grav
Drepanomonas revoluta Penard 1922
Creators: name: Durán-Ramírez, Carlos Alberto
name: Dias, Roberto Júnio Pedroso
name: Estrada, Rosaura Mayén-
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Chromista
Ciliophora
Nassophorea
Nassulida
Microthoracidae
Drepanomonas
Drepanomonas revoluta

description: Drepanomonas revoluta Penard, 1922
Distribution. BRAZIL: Paraná River between the Nupelia’s Field Station and the district of Porto São José, São Pedro do Paraná (Buosi et al. 2014 b, 2015), (Ad). DOMINICAN REPUBLIC: (Foissner et al. 2003). MEXICO: Kaxil Kiuic, near Oxkutzcab (ps), (Ab); Coffee plantation La Onza, near Coatepec (Durán-Ramírez et al. 2015), (Th); (Durán-Ramírez et al. 2019), (Th); Coffee plantation Virginia Armand, near Coatepec (Durán-Ramírez et al. 2015), (Th); Dos Lagunas, near Village of Tzsiscao (ps), (Tg, Tm); Reserve of the Biosphere ChamelaCuixmala (Durán-Ramírez & Mayén-Estrada 2018), (Bk, Bp, Td, Tp, Tr); Santuario del Bosque de Niebla, near Xalapa (Durán-Ramírez et al. 2015), (Th); (Durán-Ramírez et al. 2019), (Ts); Surroundings of Reserva Azul, near the town of Cuetzalan (ps), (Th).
description: Published as part of Durán-Ramírez, Carlos Alberto, Dias, Roberto Júnio Pedroso & Estrada, Rosaura Mayén-, 2020, Checklist of ciliates (Alveolata: Ciliophora) that inhabit in bromeliads from the Neotropical Region, pp. 1-36 in Zootaxa 4895 (1) on page 20, DOI: 10.11646/zootaxa.4895.1.1, http://zenodo.org/record/4321437
A Universal Map for Fractal Structures in Weak Solitary Wave Interactions
Creators: name: Zhu, Yi
name: Haberman, Richard
name: Yang, Jianke
Publisher: name: arXiv
Year: 2008
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: Fractal scatterings in weak solitary wave interactions is analyzed for generalized nonlinear Schrödiger equations (GNLS). Using asymptotic methods, these weak interactions are reduced to a universal second-order map. This map gives the same fractal scattering patterns as those in the GNLS equations both qualitatively and quantitatively. Scaling laws of these fractals are also derived.
description: 4 pages, 3 figures to appear in Phys. Rev. Lett. (2008)
Di-hadron and Tri-hadron correlation and Mach-like cone structure
Creators: name: Ma, Y. G.
name: Ma, G. L.
name: Zhang, S.
name: Cai, X. Z.
name: Chen, J. H.
name: He, Z. J.
name: Huang, H. Z.
name: Long, J. L.
name: Shen, W. Q.
name: Shi, X. H.
name: Zuo, J. X.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: In a framework of a multi-phase transport model with both partonic and hadronic interactions, azimuthal correlations between trigger particles and associated scattering particles in Au + Au collisions at $\sqrt{s_{NN}}$ = 200 GeV/$c$ have been studied by the mixing-event technique. The Mach-like structure has been observed in correlation function for central collisions. It is shown that the Mach-like structure is basically born in the partonic process and further developed in hadronic rescattering process. However, hadronic rescattering alone cannot reproduce the amplitude of Mach-like cone on away side, therefore partonic cascade process is necessary to describe the amplitude of Mach-like cone on away side in experiment. In addition, three-particle correlations have been investigated in central Au + Au collisions with the AMPT model, and the results support the conclusion that partonic cascade processes enhance the opening angle of Mach-like cone structures.
description: Proceeding of "22nd Winter Workshop onn Nuclear Dynamics", La Jolla, California, USA. March 11-18, 2006; to be published in "Heavy Ion Physics"; 8 pages, 5 figures; a couple of sentences were improved & the references were updated
Persistence in Random Walk in Composite Media
Creators: name: Chakraborty, D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider a class of inhomogeneous media known as composite media that is often encountered in experimental sciences and investigate the persistence probability of a random walker in such a system. Analytical and numerical results for the crossover time scales has been obtained for a composite system with two homogeneous components and three homogeneous components respectively.
description: 6 pages, 8 figures
A two-component Comptonisation model for the type-B QPO in MAXI J1348-630
Creators: name: García, Federico
name: Méndez, Mariano
name: Karpouzas, Konstantinos
name: Belloni, Tomaso
name: Zhang, Liang
name: Altamirano, Diego
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Spectral-timing analysis of the fast variability observed in X-rays is a powerful tool to study the physical and geometrical properties of the accretion/ejection flows in black-hole binaries. The origin of type-B quasi-periodic oscillations (QPO), predominantly observed in black-hole candidates in the soft-intermediate state, has been linked to emission arising from the relativistic jet. In this state, the X-ray spectrum is characterised by a soft-thermal blackbody-like emission due to the accretion disc, an iron emission line (in the 6-7 keV range), and a power-law like hard component due to Inverse-Compton scattering of the soft-photon source by hot electrons in a corona or the relativistic jet itself. The spectral-timing properties of MAXI J1348-630 have been recently studied using observations obtained with the NICER observatory. The data show a strong type-B QPO at ~4.5 Hz with increasing fractional rms amplitude with energy and positive lags with respect to a reference band at 2-2.5 keV. We use a variable-Comptonisation model that assumes a sinusoidal coherent oscillation of the Comptonised X-ray flux and the physical parameters of the corona at the QPO frequency, to fit simultaneously the energy-dependent fractional rms amplitude and phase lags of this QPO. We show that two physically-connected Comptonisation regions can successfully explain the radiative properties of the QPO in the full 0.8-10 keV energy range.
description: 11 pages, 6 figures, 3 tables. Accepted for publication in MNRAS
Geistliche und politische Dimensionen des Verständnisses von Würde, Freiheit und Menschenrechten in der Russisch-Orthodoxen Kirche
Creators: name: Shishova, Marina
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 59 Nr. 3 (2010): Ökumenische Rundschau, Band 59, Heft 3
Cosmic Order out of Primordial Chaos: a tribute to Nikos Voglis
Creators: name: Jones, Bernard J. T.
name: van de Weygaert, Rien
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Nikos Voglis had many astronomical interests, among them was the question of the origin of galactic angular momentum. In this short tribute we review how this subject has changed since the 1970's and how it has now become evident that gravitational tidal forces have not only caused galaxies to rotate, but have also acted to shape the very cosmic structure in which those galaxies are found. We present recent evidence for this based on data analysis techniques that provide objective catalogues of clusters, filaments and voids.
description: 16 pp., 6 figures, invited review "Chaos in Astronomy 2007", ed. P. Patsis, G. Contopoulos, Springer-Verlag. For high-res version see http://www.astro.rug.nl/~weygaert/tim1publication/joneswey.nikos-2007.pdf
Circle arrangements of link projections
Creators: name: Ito, Noboru
name: Matsuzaki, Shosaku
name: Taniyama, Kouki
Publisher: name: arXiv
Year: 2020
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics

description: An oriented link projection is the image of a generic immersion of oriented circles into the 2-sphere. The circle arrangement of a link projection is a disjoint union of unoriented circles on the 2-sphere obtained by orientation-incoherent smoothing at each crossing point. We show that two oriented link projections have the same circle arrangement if and only if they are transformed into each other by certain local moves. We also show that every odd (resp. even) component link has a link projection whose circle arrangement consists of exactly one (resp. two) circles.
description: 8 pages, 13 figures
LP2PB: Translating Answer Set Programs into Pseudo-Boolean Theories
Creators: name: De Wulf, Wolf
name: Bogaerts, Bart
Publisher: name: arXiv
Year: 2020
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences
subject: I.2.8; I.2.4; D.3.2; I.2.3

description: Answer set programming (ASP) is a well-established knowledge representation formalism. Most ASP solvers are based on (extensions of) technology from Boolean satisfiability solving. While these solvers have shown to be very successful in many practical applications, their strength is limited by their underlying proof system, resolution. In this paper, we present a new tool LP2PB that translates ASP programs into pseudo-Boolean theories, for which solvers based on the (stronger) cutting plane proof system exist. We evaluate our tool, and the potential of cutting-plane-based solving for ASP on traditional ASP benchmarks as well as benchmarks from pseudo-Boolean solving. Our results are mixed: overall, traditional ASP solvers still outperform our translational approach, but several benchmark families are identified where the balance shifts the other way, thereby suggesting that further investigation into a stronger proof system for ASP is valuable.
description: In Proceedings ICLP 2020, arXiv:2009.09158
High-energy cosmic particles
Creators: name: Mollerach, Silvia
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: A review of the status of the knowledge in the field of High-energy cosmic particles is presented. The spectrum, arrival direction distribution and composition measurements are summarized, together with some implications for the understanding of the cosmic ray origin and their propagation. Special emphasis is put in the ultra-high energy range, corresponding to particles of extragalactic origin.
description: 10 pages
Tachyon warm inflationary universe models
Creators: name: Herrera, R.
name: del Campo, S.
name: Campuzano, C.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Warm inflationary universe models in a tachyon field theory are studied. General conditions required for these models to be realizable are derived and discussed. We describe scalar perturbations (in the longitudinal gauge) and tensor perturbations for these scenarios. We develop our models for a constant dissipation parameter $Γ$ in one case and one dependent on $ϕ$ in the other case. We have been successful in describing such of inflationary universe models. We use recent astronomical observations for constraining the parameters appearing in our model. Also, our results are compared with their analogous found in the cool inflationary case.
description: 21 pages, Accepted by JCAP
Menschenrechte, Menschenwürde und sittliche Verantwortung im kirchlichen Dialog zwischen Ost und West
Creators: name: Heller, Dagmar
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 59 Nr. 3 (2010): Ökumenische Rundschau, Band 59, Heft 3
Dynamic Multi-Agent Path Finding based on Conflict Resolution using Answer Set Programming
Creators: name: Atiq, Basem
name: Patoglu, Volkan
name: Erdem, Esra
Publisher: name: arXiv
Year: 2020
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Logic in Computer Science (cs.LO)
subject: Multiagent Systems (cs.MA)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: We study a dynamic version of multi-agent path finding problem (called D-MAPF) where existing agents may leave and new agents may join the team at different times. We introduce a new method to solve D-MAPF based on conflict-resolution. The idea is, when a set of new agents joins the team and there are conflicts, instead of replanning for the whole team, to replan only for a minimal subset of agents whose plans conflict with each other. We utilize answer set programming as part of our method for planning, replanning and identifying minimal set of conflicts.
description: In Proceedings ICLP 2020, arXiv:2009.09158
Auxiliary fields as a tool for computing analytical solutions of the Schrödinger equation
Creators: name: Silvestre-Brac, B.
name: Semay, C.
name: Buisseret, F.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We propose a new method to obtain approximate solutions for the Schrödinger equation with an arbitrary potential that possesses bound states. This method, relying on the auxiliary field technique, allows in many cases to find analytical solutions. It offers a convenient way to study the qualitative features of the energy spectrum of bound states in any potential. In particular, we illustrate our method by solving the case of central potentials with power-law form and with logarithmic form. For these types of potentials, we propose very accurate analytical energy formulae which improve a lot the corresponding formulae that can be found in literature.
description: 2 figures
Transcription of the Questionnaire on Information Structure
Creators: name: Parker, Verdena
name: Newbold, Lindsey
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: hup

description: Audio files VP-190212-03, VP-190212-04a/c, and VP-190212-05: Transcription of responses to the Questionnaire on Information Structure (file VP-161011-08), starting at 17:02 (VP-190212-03), 27:14 (VP-190212-04a/c), and 34:20 (VP-190212-05).
When Machine Learning Meets Quantum Computers: A Case Study
Creators: name: Jiang, Weiwen
name: Xiong, Jinjun
name: Shi, Yiyu
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Machine Learning (cs.LG)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Along with the development of AI democratization, the machine learning approach, in particular neural networks, has been applied to wide-range applications. In different application scenarios, the neural network will be accelerated on the tailored computing platform. The acceleration of neural networks on classical computing platforms, such as CPU, GPU, FPGA, ASIC, has been widely studied; however, when the scale of the application consistently grows up, the memory bottleneck becomes obvious, widely known as memory-wall. In response to such a challenge, advanced quantum computing, which can represent 2^N states with N quantum bits (qubits), is regarded as a promising solution. It is imminent to know how to design the quantum circuit for accelerating neural networks. Most recently, there are initial works studying how to map neural networks to actual quantum processors. To better understand the state-of-the-art design and inspire new design methodology, this paper carries out a case study to demonstrate an end-to-end implementation. On the neural network side, we employ the multilayer perceptron to complete image classification tasks using the standard and widely used MNIST dataset. On the quantum computing side, we target IBM Quantum processors, which can be programmed and simulated by using IBM Qiskit. This work targets the acceleration of the inference phase of a trained neural network on the quantum processor. Along with the case study, we will demonstrate the typical procedure for mapping neural networks to quantum circuits.
description: Invited paper at ASP-DAC'21
String Creation, D-branes and Effective Field Theory
Creators: name: Hung, Ling-Yan
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: This paper addresses several unsettled issues associated with string creation in systems of orthogonal Dp-D(8-p) branes. The interaction between the branes can be understood either from the closed string or open string picture. In the closed string picture it has been noted that the DBI action fails to capture an extra RR exchange between the branes. We demonstrate how this problem persists upon lifting to M-theory. These D-brane systems are analysed in the closed string picture by using gauge-fixed boundary states in a non-standard lightcone gauge, in which RR exchange can be analysed precisely. The missing piece in the DBI action also manifests itself in the open string picture as a mismatch between the Coleman-Weinberg potential obtained from the effective field theory and the corresponding open string calculation. We show that this difference can be reconciled by taking into account the superghosts in the (0+1)effective theory of the chiral fermion, that arises from gauge fixing the spontaneously broken world-line local supersymmetries.
description: 33 pages
Evidence Against Astrophysical Dyadospheres
Creators: name: Page, Don N.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is shown how pair production itself would almost certainly prevent the astrophysical formation of macroscopic dyadospheres, hypothetical regions, extending many electron Compton wavelengths in all directions, where the electric field exceeds the critical value for microscopically rapid Schwinger pair production. Pair production is a self-regulating process that would discharge a growing electric field, in the example of a hypothetical collapsing charged stellar core, before it reached 6% of the minimum dyadosphere value, keeping the pair production rate more than 26 orders of magnitude below the dyadosphere value, and keeping the efficiency below 0.0002 (M/M_sun)^{1/2}.
description: 27 pages, LaTeX, shortened version of astro-ph/0605432 accepted 2006 Aug. 17 by The Astrophysical Journal, but also with some significant new material
Filtering Rules for Flow Time Minimization in a Parallel Machine Scheduling Problem
Creators: name: Nattaf, Margaux
name: Malapert, Arnaud
Publisher: name: arXiv
Year: 2020
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: This paper studies the scheduling of jobs of different families on parallel machines with qualification constraints. Originating from semiconductor manufacturing, this constraint imposes a time threshold between the execution of two jobs of the same family. Otherwise, the machine becomes disqualified for this family. The goal is to minimize both the flow time and the number of disqualifications. Recently, an efficient constraint programming model has been proposed. However, when priority is given to the flow time objective, the efficiency of the model can be improved. This paper uses a polynomial-time algorithm which minimize the flow time for a single machine relaxation where disqualifications are not considered. Using this algorithm one can derived filtering rules on different variables of the model. Experimental results are presented showing the effectiveness of these rules. They improve the competitiveness with the mixed integer linear program of the literature.
An application of Answer Set Programming in Distributed Architectures: ASP Microservices
Creators: name: Costantini, Stefania
name: De Lauretis, Lorenzo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences
subject: F.4.1; I.2.3; I.2.4; I.2.11

description: We propose an approach to the definition of microservices with an Answer Set Programming (ASP) `core', where microservices are a successful abstraction for designing distributed applications as suites of independently deployable interacting components. Such ASP-based components might be employed in distributed architectures related to Cloud Computing or to the Internet of Things (IoT).
description: In Proceedings ICLP 2020, arXiv:2009.09158
Origin of the Magnetic and Orbital ordering in $α$-Sr$_2$CrO$_4$
Creators: name: Pandey, Bradraj
name: Zhang, Yang
name: Kaushal, Nitin
name: Soni, Rahul
name: Lin, Ling-Fang
name: Hu, Wen-Jun
name: Alvarez, Gonzalo
name: Dagotto, Elbio
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Motivated by recent experimental progress in transition metal oxides with the K$_2$NiF$_4$ structure, we investigate the magnetic and orbital ordering in $α$-Sr$_2$CrO$_4$. Using first principles calculations, first we derive a three-orbital Hubbard model, which reproduces the {\it ab initio} band structure near the Fermi level. The unique reverse splitting of $t_{2g}$ orbitals in $α$-Sr$_2$CrO$_4$, with the $3d^2$ electronic configuration for the Cr$^{4+}$ oxidation state, opens up the possibility of orbital ordering in this material. Using real-space Hartree-Fock for multi-orbital systems, we constructed the ground-state phase diagram for the two-dimensional compound $α$-Sr$_2$CrO$_4$. We found stable ferromagnetic, antiferromagnetic, antiferro-orbital, and staggered orbital stripe ordering in robust regions of the phase diagram. Furthermore, using the density matrix renormalization group method for two-leg ladders with the realistic hopping parameters of $α$-Sr$_2$CrO$_4$, we explore magnetic and orbital ordering for experimentally relevant interaction parameters. Again, we find a clear signature of antiferromagnetic spin ordering along with antiferro-orbital ordering at moderate to large Hubbard interaction strength. We also explore the orbital-resolved density of states with Lanczos, predicting insulating behavior for the compound $α$-Sr$_2$CrO$_4$, in agreement with experiments. Finally, an intuitive understanding of the results is provided based on a hierarchy between orbitals, with $d_{xy}$ driving the spin order, while electronic repulsion and the effective one dimensionality of the movement within the $d_{xz}$ and $d_{yz}$ orbitals driving the orbital order.
description: 13 pages, 12 figures
Less Manual Work for Safety Engineers: Towards an Automated Safety Reasoning with Safety Patterns
Creators: name: Dantas, Yuri Gil
name: Kondeva, Antoaneta
name: Nigam, Vivek
Publisher: name: arXiv
Year: 2020
Subjects: subject: Systems and Control (eess.SY)
subject: Cryptography and Security (cs.CR)
subject: Formal Languages and Automata Theory (cs.FL)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: The development of safety-critical systems requires the control of hazards that can potentially cause harm. To this end, safety engineers rely during the development phase on architectural solutions, called safety patterns, such as safety monitors, voters, and watchdogs. The goal of these patterns is to control (identified) faults that can trigger hazards. Safety patterns can control such faults by e.g., increasing the redundancy of the system. Currently, the reasoning of which pattern to use at which part of the target system to control which hazard is documented mostly in textual form or by means of models, such as GSN-models, with limited support for automation. This paper proposes the use of logic programming engines for the automated reasoning about system safety. We propose a domain-specific language for embedded system safety and specify as disjunctive logic programs reasoning principles used by safety engineers to deploy safety patterns, e.g., when to use safety monitors, or watchdogs. Our machinery enables two types of automated safety reasoning: (1) identification of which hazards can be controlled and which ones cannot be controlled by the existing safety patterns; and (2) automated recommendation of which patterns could be used at which place of the system to control potential hazards. Finally, we apply our machinery to two examples taken from the automotive domain: an adaptive cruise control system and a battery management system.
description: In Proceedings ICLP 2020, arXiv:2009.09158
Sensitivity analysis of the solar rotation to helioseismic data from GONG, GOLF and MDI observations
Creators: name: Eff-Darwich, A.
name: Korzennik, S. G.
name: Jimenez-Reyes, S. J.
name: Garcia, R. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Accurate determination of the rotation rate in the radiative zone of the sun from helioseismic observations requires rotational frequency splittings of exceptional quality as well as reliable inversion techniques. We present here inferences based on mode parameters calculated from 2088-days long MDI, GONG and GOLF time series that were fitted to estimate very low frequency rotational splittings (nu < 1.7 mHz). These low frequency modes provide data of exceptional quality, since the width of the mode peaks is much smaller than the rotational splitting and hence it is much easier to separate the rotational splittings from the effects caused by the finite lifetime and the stochastic excitation of the modes. We also have implemented a new inversion methodology that allows us to infer the rotation rate of the radiative interior from mode sets that span l=1 to 25. Our results are compatible with the sun rotating like a rigid solid in most of the radiative zone and slowing down in the core (R_sun < 0.2). A resolution analysis of the inversion was carried out for the solar rotation inverse problem. This analysis effectively establishes a direct relationship between the mode set included in the inversion and the sensitivity and information content of the resulting inferences. We show that such an approach allows us to determine the effect of adding low frequency and low degree p-modes, high frequency and low degree p-modes, as well as some g-modes on the derived rotation rate in the solar radiative zone, and in particular the solar core. We conclude that the level of uncertainties that is needed to infer the dynamical conditions in the core when only p-modes are included is unlikely to be reached in the near future, and hence sustained efforts are needed towards the detection and characterization of g-modes.
description: Accepted for publication in Astrophysical journal. 15 pages, 19 figures
Contradicting effective mass scalings within the Skyrme energy density functional method
Creators: name: Satula, W.
name: Wyss, R. A.
name: Zalewski, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The problem of the effective mass scaling in the single particle spectra calculated within the Skyrme energy density functional (EDF) method is studied. It is demonstrated that for specific pairs of orbitals the commonly anticipated isoscalar effective mass (m*) scaling of the single-particle level splittings is almost canceled by an implicit m*-scaling due to other parameters in the Skyrme EDF. This holds in particular for an indirect m*-scaling of the two-body spin-orbit strength making the theory essentially unpredictable with respect to single particle energies. It is argued that this unphysical property of the Skyrme EDF is a mere consequence of the strategies and datasets used to fit these functionals. The inclusion of certain single-particle spin-orbit splittings to fit the two-body spin-orbit and the tensor interaction strengths reinstates the conventional m*-scaling and improves the performance of the Skyrme EDF.
description: 5 revTex pages, 5 eps figures
Guidelines for Road Diet Conversions
Creators: name: Stamatiadis, Nikiforos
name: Kirk, Adam
name: Wang, Chen
name: Cull, Andrea
name: Agarwal, Nithin
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 2011
Subjects: subject: Transportation Engineering

description: The purpose of this report is to document the development of the guidelines for the road diet conversions prepared for the Kentucky Transportation Cabinet. The guidelines consider operational and safety aspects of the conversions to assist in the preliminary determination of whether a road diet conversion is appropriate for a given roadway segment. The guidelines provide suggested cross section designs, transition to and from the road diet section and a flow chart for determining the appropriate actions.
Effects of the triaxial deformation and pairing correlation on the proton emitter 145Tm
Creators: name: Yao, J. M.
name: Sun, B.
name: Woods, P. J.
name: Meng, J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The ground-state properties of the recent reported proton emitter 145Tm have been studied within the axially or triaxially deformed relativistic mean field (RMF) approaches, in which the pairing correlation is taken into account by the BCS-method with a constant pairing gap. It is found that triaxiality and pairing correlations play important roles in reproducing the experimental one proton separation energy. The single-particle level, the proton emission orbit, the deformation parameters beta = 0.22 and gamma = 28.98 and the corresponding spectroscopic factor for 145Tm in the triaxial RMF calculation are given as well.
description: 17 pages, 7 figures and 1 table. accepted by Physical Review C
Computer Science Educators’ Use of Twitter for Conference Engagements: A Grounded Theory Analysis
Creators: name: Singh, Lenandlar
Publisher: name: The Journal of Social Media for Learning
Year: 2022

description: This study explored how computer science education community used Twitter as a conference backchannel. Using Constructivist Grounded Theory methodology, four themes and ten categories emerged. These themes are: Promote Scholarship; Connect, Promote and Extend the Research Community; Engage in Professional Learning; Humanise the Conference Space. Participants using the conference backchannel contributed to the scholarly discourse, extended the reach of the conferences they attended. They benefitted from various discourses, gained publicity, engaged in networking opportunities, enhanced their own professional learning while extending care for other participants. The findings of this study have implications for the computer science education research community. The study provides insights to organisers on how to extend and enhance conference experiences. For researchers, attendees and users of research output, the study demonstrates tangible benefits of connecting, networking and professional learning. For those responsible for assessing researchers’ contribution to scholarship, this study highlights researchers’ engagement in public scholarship. Opportunities for future research are identified.
description: The Journal of Social Media for Learning, Early View