cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Comparative Analysis of Molecular Clouds in M31, M33 and the Milky Way
Creators: name: Sheth, Kartik
name: Vogel, Stuart N.
name: Wilson, Christine D.
name: Dame, T. M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present BIMA observations of a 2$\arcmin$ field in the northeastern spiral arm of M31. In this region we find six giant molecular clouds that have a mean diameter of 57$\pm$13 pc, a mean velocity width of 6.5$\pm$1.2 \kms, and a mean molecular mass of 3.0 $\pm$ 1.6 $\times$ 10$^5$\Msun. The peak brightness temperature of these clouds ranges from 1.6--4.2 K. We compare these clouds to clouds in M33 observed by \citet{wilson90} using the OVRO millimeter array, and some cloud complexes in the Milky Way observed by \cite{dame01} using the CfA 1.2m telescope. In order to properly compare the single dish data to the spatially filtered interferometric data, we project several well-known Milky Way complexes to the distance of Andromeda and simulate their observation with the BIMA interferometer. We compare the simulated Milky Way clouds with the M31 and M33 data using the same cloud identification and analysis technique and find no significant differences in the cloud properties in all three galaxies. Thus we conclude that previous claims of differences in the molecular cloud properties between these galaxies may have been due to differences in the choice of cloud identification techniques. With the upcoming CARMA array, individual molecular clouds may be studied in a variety of nearby galaxies. With ALMA, comprehensive GMC studies will be feasible at least as far as the Virgo cluster. With these data, comparative studies of molecular clouds across galactic disks of all types and between different galaxy disks will be possible. Our results emphasize that interferometric observations combined with the use of a consistent cloud identification and analysis technique will be essential for such forthcoming studies that will compare GMCs in the Local Group galaxies to galaxies in the Virgo cluster.
description: Accepted for Publication in the Astrophysical Journal
Geometric Complexity
Creators: name: Shamos, Michael I.
Publisher: name: Carnegie Mellon University
Year: 1975
Subjects: subject: 80399 Computer Software not elsewhere classified
subject: FOS: Computer and information sciences

description: The complexity of a number of fundamental problems in computational geometry is examined and a number of new fast algorithms are presented and analyzed. General methods for obtaining results in geometric complexity are given and upper and lower bounds are obtained for problems involving sets of points, lines, and polygons in the plane. An effort is made to recast classical theorems into a useful computational form and analogies are developed between constructibility questions in Euclidean geometry and computability questions in modern computational complexity.
Floquet-Gibbs state in open quantum systems
Creators: name: Shirai, Tatsuhiko
name: Mori, Takashi
name: Miyashita, Seiji
Publisher: name: arXiv
Year: 2018
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study long-time asymptotic states of periodically driven quantum systems coupled to a thermal bath. In order to describe a class of such a system, we introduce the Floquet-Gibbs state, i.e. the state whose density matrix is diagonalized in the basis of the Floquet state of the system Hamiltonian, and its diagonal element obeys the Boltzmann distribution over its Floquet quasienergy. We obtain sufficient conditions for the realization of the Floquet-Gibbs state in a system with infinitesimal system-bath coupling [T. Shirai, et al., Phys. Rev. E 91, 030101 (2015)]. These conditions severely restrict a class of suitable physical models attaining the Floquet-Gibbs state. We also show that some of the conditions can be lifted by imposing conditions on timescales of the thermal bath with the aid of the truncated Floquet Hamiltonian in the Floquet-Magnus expansion [T. Shirai, et al., New Journal of Physics 18, 053008 (2016)]. In this paper we give a overview of this theory and reconsider it by looking at the dynamics from a rotating frame.
description: Proceedings of 14th Granada Seminar, June 20-23, 2017
Subradiant states of quantum bits coupled to a one-dimensional waveguide
Creators: name: Albrecht, Andreas
name: Henriet, Loïc
name: Asenjo-Garcia, Ana
name: Dieterle, Paul B.
name: Painter, Oskar
name: Chang, Darrick E.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The properties of coupled emitters can differ dramatically from those of their individual constituents. Canonical examples include sub- and super-radiance, wherein the decay rate of a collective excitation is reduced or enhanced due to correlated interactions with the environment. Here, we systematically study the properties of collective excitations for regularly spaced arrays of quantum emitters coupled to a one-dimensional (1D) waveguide. We find that, for low excitation numbers, the modal properties are well-characterized by spin waves with a definite wavevector. Moreover, the decay rate of the most subradiant modes obeys a universal scaling with a cubic suppression in the number of emitters. Multi-excitation subradiant eigenstates can be built from fermionic combinations of single excitation eigenstates; such "fermionization" results in multiple excitations that spatially repel one another. We put forward a method to efficiently create and measure such subradiant states, which can be realized with superconducting qubits. These measurement protocols probe both real-space correlations (using on-site dispersive readout) and temporal correlations in the emitted field (using photon correlation techniques).
description: 21 pages, 9 figures
Geometric Characterization of Series-Parallel Variable Resistor Networks
Creators: name: Bryant, Randal
name: Huang, Lawrence P.
Publisher: name: Carnegie Mellon University
Year: 1994
Subjects: subject: 80399 Computer Software not elsewhere classified
subject: FOS: Computer and information sciences

description: The range of operating conditions for a series-parallel network of variable linear resistors, voltage sources, and current sources can be represented as a convex polygon in a Thevenin or Norton half-plane. For a network with n elements of which k are variable, these polygons have at most 2k vertices and can be computed in O(nk) time. These half planes are embedded in the real projective plane to represent circuits with potentially infinite Thevenin resistance or Norton conductance. For circuits that have an acyclic structure once all branches to ground are removed, the characteristic polygons for all nodes with respect to ground can be computed simultaneously by an algorithm of complexity O(nk).
On quantum cryptography with bipartite bound entangled states
Creators: name: Horodecki, Pawel
name: Augusiak, Remigiusz
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Recently the explicit applicability of bound entanglement in quantum cryptography has been shown. In this paper some of recent results respecting this topic are reviewed. In particular relevant notions and definitions are reminded. The new construction of bound entangled states containing secure correlations is presented. It provides low dimensional 6\otimes6 bound entangled states with nonzero distillable key.
description: 10 pages, no figures
Influence of crystal structure on charge carrier effective masses in BiFeO$_3$
Creators: name: Shenton, J. Kane
name: Bowler, David R.
name: Cheah, Wei Li
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Ferroelectric-based photovoltaics have shown great promise as a source of renewable energy, thanks to their in-built charge separation capability, yet their efficiency is often limited by low charge carrier mobilities. In this work, we compare the photovoltaic prospects of various phases of the multiferroic material BiFeO$_3$ by evaluating their charge carrier effective masses using first-principles simulations. We identify a tetragonal phase with the promising combination of a large spontaneous polarisation and relatively light charge carriers. From a systematic study of the octahedral distortions present in BiFeO$_3$, we explain the relationship between structure and effective masses in terms of the changes to the orbital character and overlap at the band edges that result from changes in the geometry. The findings in this study provide some design principles to engineer desired effective masses in BiFeO$_3$ and similar materials through manipulation of their crystal structures in experimentally accessible ways.
description: 12 pages, 10 figures
The imprints of primordial non-gaussianities on large-scale structure: scale dependent bias and abundance of virialized objects
Creators: name: Dalal, Neal
name: Doré, Olivier
name: Huterer, Dragan
name: Shirokov, Alexander
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study the effect of primordial nongaussianity on large-scale structure, focusing upon the most massive virialized objects. Using analytic arguments and N-body simulations, we calculate the mass function and clustering of dark matter halos across a range of redshifts and levels of nongaussianity. We propose a simple fitting function for the mass function valid across the entire range of our simulations. We find pronounced effects of nongaussianity on the clustering of dark matter halos, leading to strongly scale-dependent bias. This suggests that the large-scale clustering of rare objects may provide a sensitive probe of primordial nongaussianity. We very roughly estimate that upcoming surveys can constrain nongaussianity at the level |fNL|
description: 16 pages, color figures, revtex4. v2: added references and an equation. submitted to PRD. v3: simplified derivation, additional references
Benefits of a professional development course on transcription for practising speech-language pathologists
Creators: name: Squires, Emma
name: Eecen, Kyriaki Ttofari
name: Crosbie, Sharon
name: Corso, Stephanie
name: Prinsloo, Melissa
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Space Science
subject: Medicine
subject: Science Policy
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Computational Biology

description: Purpose: Transcription of speech sounds is a fundamental skill used by speech-language pathologists. Little is known about the impact of professional development courses on transcription accuracy and confidence. This study explored speech-language pathologists’ use and perceptions of transcription and the effect of a professional development course on their transcription accuracy and confidence. Method: A quasi-experimental, one-group pretest-posttest design was used. Twenty-two Australian speech-language pathologists working with children with speech sound disorders participated in the course. Participants transcribed single words and completed a survey about confidence, perceptions, and the use of transcription at both time points. Result: The number of participants who reported feeling confident about using transcription significantly increased from 36.84% pre-training to 68.42% post-training. Transcription accuracy of phonemes based on point-to-point accuracy was high pre-training (88.97%) and did not significantly improve. Participants identified strategies to maintain their transcription skills. Conclusion: This study suggests speech-language pathologists transcribe single words in typical speech with high accuracy using broad transcription, and that participating in a transcription professional development course increases their transcription confidence. Further research is needed to explore different delivery methods of professional development, the impact of professional development on transcription accuracy of disordered speech, and the long-term impacts of professional development on transcription accuracy and confidence.
Geometric Characterization of Series-Parallel Variable Resistor Networks
Creators: name: Bryant, Randal
name: Huang, Lawrence P.
Publisher: name: Carnegie Mellon University
Year: 1993
Subjects: subject: 80399 Computer Software not elsewhere classified
subject: FOS: Computer and information sciences

description: The range of operating conditions for a seriesparallel network of variable linear resistors, voltage sources, variable elements, these polygons have at most 2k vertices. By introducing a class of infinite points, we can also represent circuits with potentially infinite Thevenin resistance or
Full elimination of the gravity-gradient terms in atom interferometry
Creators: name: Dubetsky, B.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The A. Roura technique was modified to eliminate all terms in the atom interferometer phase, which are linear in the gravity-gradient tensor. The full elimination occurs if all effective wave vectors are slightly changed. The full elimination technique would allow to relieve the synchronization requirements in the test of the Einstein equivalence principle. This technique also eliminates the error of the absolute gravity measurement associated with the gravity gradient terms. The error becomes three orders smaller and does not depend on the time delay between the Raman pulses. In addition, the new differential scheme is proposed to observe the gravity-gradient term independent on the atoms initial position and velocity.
description: 4 pages, changed structure, corrected English
Two Examples of Toric Arrangements
Creators: name: Pagaria, Roberto
Publisher: name: arXiv
Year: 2018
Subjects: subject: Combinatorics (math.CO)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 05B35, 52C35

description: We show that the integral cohomology algebra of the complement of a toric arrangement is not determined by the poset of layers. Moreover, the rational cohomology algebra is not determined by the arithmetic matroid (however it is determined by the poset of layers).
description: 12 pages, 1 figure, removed section 3
Specific Adhesion of Peptides on Semiconductor Surfaces in Experiment and Simulation
Creators: name: Goede, Karsten
name: Bachmann, Michael
name: Janke, Wolfhard
name: Grundmann, Marius
Publisher: name: arXiv
Year: 2007
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We report on self-assembly, clustering, and conformational phases of peptides on inorganic semiconductor surfaces. The peptide-covered surface fraction can differ by a factor of 25, depending mainly on surface and peptide polarity. Low adhesion induces large and soft clusters, which also have high contact angles to the surface. Direct surface adhesion of a peptide molecule competes with forming molecular aggregates which offer an overall reduced surface contact. Simulating a simple hybrid model yields a pseudophase diagram with a rich, temperature and solvent-quality dependent variety of subphases which are specific to the hydrophobicity and polarity of the considered substrates.
description: 2 pages, 2 figures
Australian speech-language pathologists’ self-rated confidence, knowledge, and skill on constructs essential to practising in literacy with children and adolescents
Creators: name: Stephenson, Caitlin F.
name: Serry, Tanya A.
name: Snow, Pamela C.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Medicine
subject: Pharmacology
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
classificationCode: 111714
subject: Mental Health

description: To investigate Australian speech-language pathologists’ (SLPs’) knowledge of language and literacy constructs, skills in linguistic manipulation, and self-rated ability and confidence. Two hundred and thirty-one SLPs from across Australia completed an online knowledge and skill assessment survey. There was substantial individual variability regarding performance on items measuring the knowledge and skills of essential literacy constructs. SLPs were most likely to rate their confidence in providing intervention for phonological and phonemic awareness as "very good" or "expert". They reported lower confidence providing intervention for all other aspects of literacy. The majority of SLPs reported what they described as inadequate preservice training to practise in literacy. There was variability between respondents in their self-reported alignment with approaches and beliefs that are unsupported by current research evidence on reading instruction and support. The level and consistency of SLPs’ literacy knowledge and skills requires improvement. The perception of inadequate preparation to practise in literacy may mean that SLPs are reluctant to engage in this area of practice. Minimum accreditation requirements specifically for literacy are recommended, together with assurance of ongoing professional learning opportunities spanning all components of literacy.
Orphan spins and bound in-gap states in the $S={5\over2}$ antiferromagnet CaFe$_{2}$O$_{4}$
Creators: name: Stock, C.
name: Rodriguez, E. E.
name: Lee, N.
name: Demmel, F.
name: Fouquet, P.
name: Laver, M.
name: Niedermayer, Ch.
name: Su, Y.
name: Nemkovski, K.
name: Green, M A.
name: Rodriguez-Rivera, J. A.
name: Kim, J. W.
name: Zhang, L.
name: Cheong, S. -W.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: CaFe$_{2}$O$_{4}$ is an anisotropic $S={5\over 2}$ antiferromagnet with two competing $A$ ($\uparrow \uparrow \downarrow \downarrow$) and $B$ ($\uparrow \downarrow \uparrow \downarrow$) magnetic order parameters separated by static antiphase boundaries at low temperatures. Neutron diffraction and bulk susceptibility measurements, show that the spins near these boundaries are weakly correlated and a carry an uncompensated ferromagnetic moment that can be tuned with a magnetic field. Spectroscopic measurements find these spins are bound with excitation energies less than the bulk magnetic spin-waves and resemble the spectra from isolated spin-clusters. Localized bound orphaned spins separate the two competing magnetic order parameters in CaFe$_{2}$O$_{4}$.
description: (main text - 5 pages, 4 figures; supplementary information - 4 pages, 6 figures, to be published in Physical Review Letters). arXiv admin note: text overlap with arXiv:1606.04243
High pT correlations with strange particles in STAR
Creators: name: Abelev, Betty I.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We present the highlights of the current identified strange particles DeltaPhi and DeltaEta correlations analyses, including system-size and trigger-pT of the jet and ridge, jet, ridge and away-side meson/baryon ratios, and the current state of the multi-strange baryon analysis. We see clear azimuthal peaks of comparable strength for all strange baryons and K0-short mesons. We see no observable species dependence on the same-side jet or ridge yields as a function of pT. However, while the away side and the ridge have Lambda to K0-short ratio similar to that of the bulk, the jet-only ratio is similar to that in $p+p$. The implications of these findings on current in-medium jet theoretical explanations are discussed.
description: Proceedings for the Strangeness in Quark Matter 2007 Conference in Levoca, Slovakia
Topos theory and `neo-realist' quantum theory
Creators: name: Doering, Andreas
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Topos theory, a branch of category theory, has been proposed as mathematical basis for the formulation of physical theories. In this article, we give a brief introduction to this approach, emphasising the logical aspects. Each topos serves as a `mathematical universe' with an internal logic, which is used to assign truth-values to all propositions about a physical system. We show in detail how this works for (algebraic) quantum theory.
description: 22 pages, no figures; contribution for Proceedings of workshop "Recent Developments in Quantum Field Theory", MPI MIS Leipzig, July 2007
Time Reversal Symmetry Breaking in noncentrosymmetric superconductor Re6Ti
Creators: name: Singh, D.
name: Sajilesh, K. P.
name: Barker, J. A. T.
name: Paul, D. McK.
name: Hillier, A. D.
name: Singh, R. P.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We have investigated the superconducting state of the noncentrosymmetric superconductor Re6Ti (Tc = 6.0 K) using muon-spin rotation/relaxation (muSR) technique. The zero-field muon experiment shows the presence of spontaneous magnetic fields in the superconducting state, indicating time-reversal symmetry breaking (TRSB). However, the low-temperature transverse field muon measurements suggest nodeless s-wave superconductivity. The time reversal symmetry breaking further confirmed in the stoichiometric composition Re24Ti5. These results indicate that the pairing symmetry is not affected by spin-orbital coupling Re6X family of compounds. Altogether these studies suggest unconventional nature (TRSB) of superconductivity is intrinsic to Re6X family of compounds and paves the way for further studies of this family of materials.
description: 6 Page, 4 Figure
Kerr Black Holes are Not Unique to General Relativity
Creators: name: Psaltis, Dimitrios
name: Perrodin, Delphine
name: Dienes, Keith R.
name: Mocioiu, Irina
Publisher: name: arXiv
Year: 2007
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: Considerable attention has recently focused on gravity theories obtained by extending general relativity with additional scalar, vector, or tensor degrees of freedom. In this paper, we show that the black-hole solutions of these theories are essentially indistinguishable from those of general relativity. Thus, we conclude that a potential observational verification of the Kerr metric around an astrophysical black hole cannot, in and of itself, be used to distinguish between these theories. On the other hand, it remains true that detection of deviations from the Kerr metric will signify the need for a major change in our understanding of gravitational physics.
description: 4 pages, Physical Review Letters in press
Generating Consistent Interfaces for Appliances
Creators: name: Nichols, Jeffrey
name: Myers, Brad
Publisher: name: Carnegie Mellon University
Year: 2005
Subjects: subject: 80399 Computer Software not elsewhere classified
subject: FOS: Computer and information sciences

description: We are building a system called the personal universal controller (PUC) that automatically generates interfaces for handheld devices that allow users to remotely control all of the appliances in their surrounding environment. One of the goals of this system is to create interfaces that are consistent for the user. We are interested in two forms of consistency: with other interfaces on the same handheld device and with previously generated interfaces for similar appliances. While these problems differ slightly from the problem of ensuring an application has a consistent inter- face across multiple devices, we believe a solution to any of these problems will prove useful for solving the others. This paper discusses the challenges that we see for automatically generating consistent interfaces and ideas that we are pursuing to address the consistency problem.
title: ADCO, Grènetier de Cîteaux : comptes (1497-1504) (11 H 1172), f. 00702
Creators: name: de la Côte-d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CBMA/CG21/F.PETOT/2019
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: comptes

description: Grènetier de Cîteaux : comptes (1497-1504), Archives départementales de la Côte-d'Or, (11 H 1172). Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Grènetier de Cîteaux : comptes (1497-1504), Archives départementales de la Côte-d'Or, (11 H 1172), f. 00702, in Projet CBMA - Corpus Burgundiae Medii Aevi \[Ressource en ligne\], https:// manuscrits.cbma-project.eu/
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
Australian speech-language pathologists’ self-rated confidence, knowledge, and skill on constructs essential to practising in literacy with children and adolescents
Creators: name: Stephenson, Caitlin F.
name: Serry, Tanya A.
name: Snow, Pamela C.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Medicine
subject: Pharmacology
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: Mental Health

description: To investigate Australian speech-language pathologists’ (SLPs’) knowledge of language and literacy constructs, skills in linguistic manipulation, and self-rated ability and confidence. Two hundred and thirty-one SLPs from across Australia completed an online knowledge and skill assessment survey. There was substantial individual variability regarding performance on items measuring the knowledge and skills of essential literacy constructs. SLPs were most likely to rate their confidence in providing intervention for phonological and phonemic awareness as "very good" or "expert". They reported lower confidence providing intervention for all other aspects of literacy. The majority of SLPs reported what they described as inadequate preservice training to practise in literacy. There was variability between respondents in their self-reported alignment with approaches and beliefs that are unsupported by current research evidence on reading instruction and support. The level and consistency of SLPs’ literacy knowledge and skills requires improvement. The perception of inadequate preparation to practise in literacy may mean that SLPs are reluctant to engage in this area of practice. Minimum accreditation requirements specifically for literacy are recommended, together with assurance of ongoing professional learning opportunities spanning all components of literacy.
Holographic Chaplygin DGP cosmologies
Creators: name: Setare, M R
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In the present paper, we present an extra dimensions inspired model that is built on the DGP brane-world scenario, then we take the dark energy component on the brane to be a Chaplygin gas. After that we consider a holographic model of Chaplygin gas in the framework of DGP cosmology. We show that the holographic Chaplygin gas can mimic a phantom fluid and cross the phantom divide in a DGP brane-world setup.
description: 9 pages, no figure. To appear in Int. J. Mod. Phys. D
On growth and torsion of groups
Creators: name: Bartholdi, Laurent
name: Pochon, Floriane
Publisher: name: arXiv
Year: 2007
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: We give a subexponential upper bound and a superpolynomial lower bound on the growth function of the Fabrykowski-Gupta group. As a consequence, we answer negatively a question by Longobardi, Maj and Rhemtulla about characterizing groups containing no free subsemigroups on two generators.
description: 10 pages
Gravity-Induced Geometric Phases and Entanglement in Spinors and Neutrinos: Gravitational Zeeman Effect
Creators: name: Mukhopadhyay, Banibrata
name: Ganguly, Soumya Kanti
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show Zeeman-like splitting in the energy of spinors propagating in a background gravitational field, analogous to the spinors in an electromagnetic field, otherwise termed the Gravitational Zeeman Effect. These spinors are also found to acquire a geometric phase, in a similar way as they do in the presence of magnetic fields. However, in a gravitational background, the Aharonov-Bohm type effect, in addition to Berry-like phase, arises. Based on this result, we investigate geometric phases acquired by neutrinos propagating in a strong gravitational field. We also explore entanglement of neutrino states due to gravity, which could induce neutrino-antineutrino oscillation in the first place. We show that entangled states also acquire geometric phases which are determined by the relative strength between gravitational field and neutrino masses.
description: 28 pages including 5 figures; Version published in Universe
Generalizing Data to Provide Anonymity when Disclosing Information
Creators: name: Samarati, Pierangela
name: Sweeney, Latanya
Publisher: name: Carnegie Mellon University
Year: 1998
Subjects: subject: 80399 Computer Software not elsewhere classified
subject: FOS: Computer and information sciences

description: The proliferation of information on the Internet and access to fast computers with large storage capaci- ties has increased the volume of information collected and disseminated about individuals. The existence os these other data sources makes it much easier to re-identify individuals whose private information is released in data believed to be anonymous. At the same time, increasing demands are made on organi- zations to release individualized data rather than aggregate statistical information. Even when explicit identifiers, such as name and phone number, are removed or encrypted when releasing individualized data, other characteristic data, which we term quasi-identi ers, can exist which allow the data recipient to re-identify individuals to whom the data refer. In this paper, we provide a computational disclosure technique for releasing information from a private table such that the identity of any individual to whom the released data refer cannot be definitively recognized. Our approach protects against linking to other data. It is based on the concepts of generalization, by which stored values can be replaced with semantically consistent and truthful but less precise alternatives, and of k-anonymity. A table is said to provide k-anonymity when the contained data do not allow the recipient to associate the released information to a set of individuals smaller than k. We introduce the notions of generalized table and of minimal generalization of a table with respect to a k-anonymity requirement. As an optimization problem, the objective is to minimally distort the data while providing adequate protection. We describe an algorithm that, given a table, e ciently computes a preferred minimal generalization to provide anonymity.
title: Stellar Populations in the Large Magellanic Cloud from 2MASS
Creators: name: Nikolaev, Sergei
name: Weinberg, Martin D.
Publisher: name: University of Massachusetts Amherst
Year: 2000
Subjects: subject: Astrophysics and Astronomy

description: This paper was harvested from ArXiv.org and ArXiv identifier is arXiv:0003012v1
description: We present a morphological analysis of the feature-rich 2MASS LMC colormagnitude diagram, identifying Galactic and LMC populations and estimating the density of LMC populations alone. We also present the projected spatial distributions of various stellar populations. The conditions that prevailed when 2MASS observed the LMC provided 10s limiting sensitivity for J <∼ 16.3, H <∼ 15.3, Ks <∼ 14.7. Major populations are identified based on matching morphological features of the color-magnitude diagram with expected positions of known populations, isochrone fits, and analysis of the projected spatial distributions. 2MASS has detected a significant population of asymptotic giant branch (AGB) stars (>∼ 104 sources) and obscured AGB stars ( >∼ 2×103 sources). The LMC populations along the first-ascent red giant branch (RGB) and AGB are quantified. Comparison of the giant luminosity functions in the bar and the outer regions of the LMC shows that both luminosity functions appear consistent with each other. The luminosity function in central (bar) field has well-defined drop-off near Ks = 12.3m corresponding to the location of RGB tip; the same feature is seen in the luminosity function of the entire LMC field. Isochrone fits for the corresponding giant branches reveal no significant differences in metallicities and ages between central and outer regions of the LMC. This may be evidence for strong dynamical evolution in the last several gigayears. In particular, the observed LMC giant branch is well-fit by published tracks in the CIT/CTIO system with a distance modulus of μ = 18.5±0.1, reddening EB−V = 0.15−0.20, metallicity Z = 0.004+0.002 −0.001 and age 3−13 Gyr. Analysis of deep 2MASS engineering data with six times the standard exposure produces similar estimates.
Norms of sub-exponential random vectors
Creators: name: Zajkowski, Krzysztof
Publisher: name: arXiv
Year: 2018
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 46E30, 60E15

description: We discuss various forms of the Luxemburg norm in spaces of random vectors with coordinates belonging to the classical Orlicz spaces of exponential type. We prove equivalent relations between some kinds of these forms. We also show when the so-called uniform norm is majorized by norms of coordinates up to some constants. We give an application of other norm to study of chaos in random vectors with sub-exponential coordinates.
description: 8 pages
Structural Properties of Small Semiconductor-Binding Synthetic Peptides
Creators: name: Gökoğlu, Gökhan
name: Bachmann, Michael
name: Çelik, Tarık
name: Janke, Wolfhard
Publisher: name: arXiv
Year: 2007
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We have performed exhaustive multicanonical Monte Carlo simulations of three 12-residue synthetic peptides in order to investigate the thermodynamic and structural properties as well as the characteristic helix-coil transitions. In these studies, we employ a realistic model where the interactions between all atoms are taken into account. Effects of solvation are also simulated by using an implicit solvent model.
description: 23 pages, 13 figures
PRO-Ethics Policy Brief 4: Engaging Diverse Stakeholders in Research and Innovation: A Call for Inclusive Policies
Creators: name: Shiroka, Stela
name: Schuerz, Stefanie
Publisher: name: Zenodo
Year: 2024

description: This policy brief addresses the critical need for inclusive participation in research and innovation, as the main goal towards which the PRO-Ethics project was designed. A recent panel discussion held during the ‘Connect. Collaborate. Create.’ Conference strengthened this need, highlighting the importance of integrating diverse perspectives, ensuring ethical practices, and redefining research excellence to include participatory elements. This document outlines actionable policy recommendations to promote inclusive, ethical, and democratic research practices.
Small permutation classes
Creators: name: Vatter, Vincent
Publisher: name: arXiv
Year: 2007
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: We establish a phase transition for permutation classes (downsets of permutations under the permutation containment order): there is an algebraic number $κ$, approximately 2.20557, for which there are only countably many permutation classes of growth rate (Stanley-Wilf limit) less than $κ$ but uncountably many permutation classes of growth rate $κ$, answering a question of Klazar. We go on to completely characterize the possible sub-$κ$ growth rates of permutation classes, answering a question of Kaiser and Klazar. Central to our proofs are the concepts of generalized grid classes (introduced herein), partial well-order, and atomicity (also known as the joint embedding property).
The Nearly Universal Merger Rate of Dark Matter Haloes in Lambda-CDM Cosmology
Creators: name: Fakhouri, Onsi
name: Ma, Chung-Pei
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We construct merger trees from the largest database of dark matter haloes to date provided by the Millennium simulation to quantify the merger rates of haloes over a broad range of descendant halo mass (1e12 < M0 < 1e15 Msun), progenitor mass ratio (1e-3 < xi < 1), and redshift (0 < z < 6). We find the mean merger rate per halo, B/n, to have very simple dependence on M0, xi, and z, and propose a universal fitting form for B/n that is accurate to 10-20%. Overall, B/n depends very weakly on the halo mass (proportional to M0^0.08) and scales as a power law in the progenitor mass ratio (proportional to xi^-2) for minor mergers (xi < 0.1) with a mild upturn for major mergers. As a function of time, we find the merger rate per Gyr to evolve as (1+z)^n with n=2-2.3, while the rate per unit redshift is nearly independent of z. Several tests are performed to assess how our merger rates are affected by, e.g. the time interval between Millennium outputs, binary vs multiple progenitor mergers, and mass conservation and diffuse accretion during mergers. In particular, we find halo fragmentations to be a general issue in merger tree construction from N-body simulations and compare two methods for handling these events. We compare our results with predictions of two analytical models for halo mergers based on the Extended Press-Schechter (EPS) model and the coagulation theory. We find the EPS model to overpredict the major merger rates and underpredict the minor merger rates by up to a factor of a few.
description: 18 pages, 19 figures; Minor revisions in version 2 accepted in MNRAS
Detection of Low Metallicity Warm Plasma in a Galaxy Overdensity Environment at z ~ 0.2
Creators: name: Narayanan, Anand
name: Savage, Blair D.
name: Mishra, Preetish K.
name: Wakker, Bart P.
name: Khaire, Vikram
name: Wadadekar, Yogesh
Publisher: name: arXiv
Year: 2018
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present results from the analysis of a multiphase O VI - broad Ly-alpha absorber at z = 0.19236 in the HST/COS spectrum of PG 1121+422. The low and intermediate ionization metal lines in this absorber have a single narrow component, whereas the Ly-alpha has a possible broad component with b(HI) $\sim 71$ km/s. Ionization models favor the low and intermediate ions coming from a $T \sim 8,500$ K, moderately dense photoionized gas with near solar metallicities. The weak O VI requires a separate gas phase that is collisionally ionized. The O VI coupled with BLA suggests $T \sim 3.2 \times 10^5$ K, with significantly lower metal abundance and $\sim 1.8$ orders of magnitude higher total hydrogen column density compared to the photoionized phase. SDSS shows 12 luminous ($> L^*$) galaxies in the $ρ\leq 5$ Mpc, $|Δv| \leq 800$ km/s region surrounding the absorber, with the absorber outside the virial bounds of the nearest galaxy. The warm phase of this absorber is consistent with being transition temperature plasma either at the interface regions between the hot intragroup gas and cooler photoionized clouds within the group, or associated with high velocity gas in the halo of a $\lesssim L^*$ galaxy. The absorber highlights the advantage of O VI-BLA absorbers as ionization model independent probes of warm baryon reserves.
description: MNRAS Accepted, 16 pages, 8 figures
Mesoscopic linear statistics of Wigner matrices of mixed symmetry class
Creators: name: He, Yukun
Publisher: name: arXiv
Year: 2018
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 15B52, 60B20

description: We prove a central limit theorem for the mesoscopic linear statistics of $N\times N$ Wigner matrices $H$ satisfying $\mathbb{E}|H_{ij}|^2=1/N$ and $\mathbb{E} H_{ij}^2= σ/N$, where $σ\in [-1,1]$. We show that on all mesoscopic scales $η$ ($1/N \ll η\ll 1$), the linear statistics of $H$ have a sharp transition at $1-σ\sim η$. As an application, we identify the mesoscopic linear statistics of Dyson's Brownian motion $H_t$ started from a real symmetric Wigner matrix $H_0$ at any nonnegative time $t \in [0,\infty]$. In particular, we obtain the transition from the central limit theorem for GOE to the one for GUE at time $t \sim η$.
description: 24 pages, to appear in Journal of Statistical Physics
Co-designing a shared book reading environment at a community hub
Creators: name: Smith, Helen
name: Dunstan, Kym
name: Melvin, Katelyn
name: Armstrong, Rebecca
name: Frazer-Ryan, Skye
name: Scarinci, Nerina
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Science Policy

description: Community hubs often provide support to families in areas of high vulnerability and can provide unique opportunities for delivering early literacy programs. This study used a co-design process to engage families, staff, and community partners within a community hub to design an environment that supported shared book reading. Co-design was enacted in four phases: 1) interviews to understand user experiences relating to shared book reading; 2) focus groups to refine ideas into actions to support shared book reading and prioritise these actions; 3) implementation of changes; and 4) understanding of participants’ experiences of involvement. Participant identified changes were implemented within four categories: 1) changing how books are organised, 2) showing families how to share books, 3) giving families information about how books can be borrowed, and 4) running more activities about books. Participants indicated they enjoyed being a part of a co-design process to affect change at the community hub. Co-design enabled the development of collaborative changes to support book reading that were valued and owned by families, staff, and community partners. Community hubs can provide unique opportunities to engage with families in areas of vulnerability to support the development of early language and literacy skills.
Comment on: ``Zero temperature conductance of parallel T-shape double quantum dots'' [Physica E 39 (2007) 214, arXiv:0708.1842v1]
Creators: name: Cornaglia, P. S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In a recent paper [Physica E 39 (2007) 214, arXiv:0708.1842v1] Crisan, Grosu and Tifrea revisited the problem of the conductance through a double quantum dot molecule connected to electrodes in a T-shape configuration. The authors obtained an expression for the conductance that disagrees with previous results in the literature. We point out an error in their derivation of the conductance formula and show that it gives unphysical results even for non-interacting quantum dots.
description: 2 pages, no figures
Non-Abelian extension of the aether term and the Gribov problem
Creators: name: Granado, D. R.
name: Felix, C. P.
name: Justo, I. F.
name: Petrov, A. Yu.
name: Vercauteren, D.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper, we treat the proper path integral quantization of the Yang-Mills-aether (YM-aether) system by dealing with the extra gauge copies in the Landau gauge. Within Gribov's prescription to get rid of such remaining gauge copies, we explicitly derive the Gribov parameter dependence of the coupling constant and of the Lorentz violation aether term. The ultraviolet limit is investigated under the light of recent bounds on the magnitude of the non-Abelian aether parameter, and we show that the Gribov parameter can be disregarded in that limit.
description: 19 pages, version accepted to Annals of Physics
Games Programs Play: Obstacles to Data Reuse
Creators: name: Scaffidi, Chris
name: Shaw, Mary
name: Myers, Brad
Publisher: name: Carnegie Mellon University
Year: 2006
Subjects: subject: 80399 Computer Software not elsewhere classified
subject: FOS: Computer and information sciences

description: Information workers often reuse data by taking it from an existing representation, recombining it to create new data, and storing the new data in another representation. The sources and destinations include databases, spreadsheets, web sites, text documents, and emails. Recombination activities are similarly diverse and include copy/pasting, concatenating, visual reformatting, arithmetic/calculating, and so forth. Yet many obstacles impede such reuse. In this paper, we summarize the problems that users face as well as some strategies for overcoming these problems.
Computing the Photometric and Polarimetric Variability of Be Stars
Creators: name: Marr, Keegan C.
name: Jones, C. E.
name: Halonen, R. J.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We investigate variations in the linear polarization as well as in the V-band and B-band colour-magnitudes for classical Be star disks. We present two models: disks with enhanced disk density and disks that are tilted or warped from the stellar equatorial plane. In both cases, we predict variation in observable properties of the system as the disk rotates. We use a non-LTE radiative transfer code BEDISK (Sigut & Jones) in combination with a Monte Carlo routine that includes multiple scattering (Halonen et al.) to model classical Be star systems. We find that a disk with an enhanced density region that is one order of magnitude denser than the disk's base density shows as much as $\sim$0.2% variability in the polarization while the polarization position angle varies by $\sim$8°. The $Δ$V magnitude for the same system shows variations of up to $\sim$0.4 magnitude while the $Δ$(B-V) colour varies by at most $\sim$0.01 magnitude. We find that disks tilted from the equatorial plane at small angles of $\sim$30°more strongly reflect the values of polarization and colour-magnitudes reported in the literature than disks tilted at larger angles. For this model, the linear polarization varies by $\sim$0.3%, the polarization position angle varies by $\sim$60°, the $Δ$V magnitude varies up to 0.35 magnitude, and the $Δ$(B-V) colour varies up to 0.1 magnitude. We find that the enhanced disk density models show ranges of polarization and colour-magnitudes that are commensurate with what is reported in the literature for all sizes of the density enhanced regions. From this, we cannot determine any preference for small or large density enhanced regions.
description: Accepted in ApJ. 11 pages, 9 figures. The University of Western Ontario