cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Weyl conformal symmetry model of the dark galactic halo
Creators: name: Nesbet, R. K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The postulate of universal conformal (local Weyl scaling) symmetry modifies both general relativity and the Higgs scalar field model. The conformal Higgs model (CHM) generates an effective cosmological constant that fits observed accelerating Hubble expansion for redshifts $z\leq 1$ (7.33 Gyr) accurately with only one free parameter. Growth of a galaxy is modeled by central accumulation of matter from an enclosing empty spherical halo whose radius expands with depletion. Details of this process account for the nonclassical radial centripetal acceleration observed as excessive orbital velocities in galactic haloes. There is no need for dark matter.
description: 4pp accepted by MDPI Galaxies. arXiv admin note: substantial text overlap with arXiv:2112.10770
Hierarchical Association of Subcomplexes Drives pre-rRNA Folding during Ribosome Biogenesis in Saccharomyces cerevisiae
Creators: name: Talkish, Jason
Publisher: name: Carnegie Mellon University
Year: 2013
Subjects: subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences

description: Construction of eukaryotic ribosomes requires at least 180 assembly factors. These proteins are thought to drive forward the progressive folding and processing of pre-rRNAs, and binding of ribosomal proteins. Initial characterizations have revealed in which steps of pre-rRNA processing most of these factors function, but only recently have investigations begun to understand how each of these proteins contributes to folding of the nascent rRNA. Work from our lab, part of which is presented in this thesis, has established an association hierarchy between 12 assembly factors and ribosomal proteins necessary for processing 27SA3 pre-rRNA. The most up-stream factors in this pathway are present in a subcomplex of four assembly factors and two ribosomal proteins. I focused on the understanding the roles of two of these proteins, Nop12 and Pwp1, in ribosome biogenesis. I investigated their timing of association with pre-ribosomes, their role in recruiting other proteins, and the effects on pre-rRNA folding in their absence. By doing so, I show that the effects observed on pre-rRNA processing in the absence of Nop12 and Pwp1 are not simply due to pre-ribosomes lacking a complete inventory of proteins, but rather due to a failure to properly fold the rRNA. I also investigated the function of the DEAD-box protein Drs1 in ribosome biogenesis and show that it functions in two consecutive steps of ribosome assembly. Furthermore, physical and genetic interactions reveal that Drs1 is recruited to pre- ribosomes by a subcomplex of assembly factors that function in the same step of biogenesis. Most importantly, in the course of investigating Drs1, I found that disruption of ribosome biogenesis results in a shift from pre-rRNAs being processed co-transcriptionally, to being processed post-transcriptionally. When this occurs, there is a breakdown of the global hierarchy of ribosome biogenesis. I show that normally late associating proteins associate with pre-ribosomes early in the biogenesis pathway, prior to any pre-rRNA processing steps occurring. Furthermore, I show this shift from co- to post-transcriptional processing is related to cell growth rates, and pre-rRNAs processed post-transcriptionally proceed down an alternative maturation pathway. These results have drastic implications for how we view the overall hierarchy of ribosome biogenesis.
Impact of SZ cluster residuals in CMB maps and CMB-LSS cross-correlations
Creators: name: Chen, Tianyue
name: Remazeilles, Mathieu
name: Dickinson, Clive
Publisher: name: arXiv
Year: 2018
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Residual foreground contamination in cosmic microwave background (CMB) maps, such as the residual contamination from thermal Sunyaev-Zeldovich (SZ) effect in the direction of galaxy clusters, can bias the cross-correlation measurements between CMB and large-scale structure optical surveys. It is thus essential to quantify those residuals and, if possible, to null out SZ cluster residuals in CMB maps. We quantify for the first time the amount of SZ cluster contamination in the released Planck 2015 CMB maps through (i) the stacking of CMB maps in the direction of the clusters, and (ii) the computation of cross-correlation power spectra between CMB maps and the SDSS-IV large-scale structure data. Our cross-power spectrum analysis yields a $30σ$ detection at the cluster scale ($\ell=1500-2500$) and a $39σ$ detection on larger scales ($\ell=500-1500$) due to clustering of SZ clusters, giving an overall $54σ$ detection of SZ cluster residuals in the Planck CMB maps. The Planck 2015 NILC CMB map is shown to have $44\pm4\%$ of thermal SZ foreground emission left in it. Using the 'Constrained ILC' component separation technique, we construct an alternative Planck CMB map, the 2D-ILC map, which is shown to have negligible SZ contamination, at the cost of being slightly more contaminated by Galactic foregrounds and noise. We also discuss the impact of the SZ residuals in CMB maps on the measurement of the ISW effect, which is shown to be negligible based on our analysis.
description: 14 pages, 11 figures, 1 table, accepted by MNRAS, close to the published version
Detection techniques and investigation of different neutrino experiments
Creators: name: Nath, Ankur
name: Francis, Ng. K.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Neutrino physics is an experimentally driven field. So, we investigate the different detection techniques available in the literature and study the various neutrino oscillation experiments in a chronological manner. Our primary focus is on the construction and detection mechanisms of each experiment. Today, we know a lot about this mysterious ghostly particle by performing different experiments at different times with different neutrino sources viz. solar, atmospheric, reactor, accelerators and high energy astrophysical; and they have contributed in the determination of neutrino parameters. Yet the problems are far from over. We need to determine more precise values of the already known parameters and unravel the completely unknown parameters. Some of the unknowns are absolute masses of neutrino, types of neutrino, mass hierarchy, octant degeneracy and existence of leptonic CP Phase(s). We analyse the neutrino experiments into the past, present and the future (or proposed). We include SNO, Kamiokande, K2K, MINOS, MINOS+, Chooz, NEMO and ICARUS in the past; while Borexino, Double Chooz, Super-K, T2K, IceCube, KamLAND, NO$ν$A, RENO and Daya Bay in the present; and SNO+, Hyper-K, JUNO, RENO-50, INO, DUNE, SuperNEMO, KM3NeT, P2O, LBNO and PINGU in the proposed experiments. We also discuss the necessities of upgrading the present ones to those of the proposed ones thereby summarizing the potentials of the future experiments. We conclude this paper with the current status of the neutrinos.
description: 17 Figures, 4 Tables
Track reconstruction and matching between emulsion and silicon pixel detectors for the SHiP-charm experiment
Creators: name: SHiP Collaboration
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: In July 2018 an optimization run for the proposed charm cross section measurement for SHiP was performed at the CERN SPS. A heavy, moving target instrumented with nuclear emulsion films followed by a silicon pixel tracker was installed in front of the Goliath magnet at the H4 proton beamline. Behind the magnet, scintillating-fibre, drift-tube and RPC detectors were placed. The purpose of this run was to validate the measurement's feasibility, to develop the required analysis tools and fine-tune the detector layout. In this paper, we present the track reconstruction in the pixel tracker and the track matching with the moving emulsion detector. The pixel detector performed as expected and it is shown that, after proper alignment, a vertex matching rate of 87 % is achieved.
description: 10 pages, 5 figures; for replacement: added detector efficiencies and track resolution, updated description of moving pattern and detector orientation, all opening angles now in cartesian coordinate system; Editor: Nikolaus Owtscharenko; to be published in JINST
Comparing the Effects of Two Perturbation-Based Balance Training Paradigms in Fall-Prone Older Adults: A Randomized Controlled Trial
Creators: name: Brüll, Leon
name: Hezel, Natalie
name: Arampatzis, Adamantios
name: Schwenk, Michael
Publisher: name: Humboldt-Universität zu Berlin
Year: 2023
Subjects: subject: Perturbation
subject: Balance training
subject: Older adults
subject: Task specificity
subject: Reactive balance
subject: 610 Medizin und Gesundheit

description: Introduction: There is increasing evidence that perturbation-based balance training (PBT) is highly effective in preventing falls at older age. Different PBT paradigms have been presented so far, yet a systematic comparison of PBT approaches with respect to feasibility and effectiveness is missing. Two different paradigms of PBT seem to be promising for clinical implementation: (1) technology-supported training on a perturbation treadmill (PBTtreadmill); (2) training of dynamic stability mechanisms in the presence of perturbations induced by unstable surfaces (PBTstability). This study aimed to compare both program's feasibility and effectiveness in fall-prone older adults. Methods: In this three-armed randomized controlled trial, seventy-one older adults (74.9 ± 6.0 years) with a verified fall risk were randomly assigned into three groups: PBTtreadmill on a motorized treadmill, PBTstability using unstable conditions such as balance pads, and a passive control group (CG). In both intervention groups, participants conducted a 6-week intervention with 3 sessions per week. Effects were assessed in fall risk (Brief-BEST), balance ability (Stepping Threshold Test, center of pressure, limits of stability), leg strength capacity, functional performance (Timed Up and Go Test, Chair-Stand), gait (preferred walking speed), and fear of falling (Short FES-I). Results: Fifty-one participants completed the study. Training adherence was 91% for PBTtreadmill and 87% for PBTstability, while no severe adverse events occurred. An analysis of covariance with an intention-to-treat approach revealed statistically significant group effects in favor of PBTstability in the Brief-BEST (p = 0.009, η2 = 0.131) and the limits of stability (p = 0.020, η2 = 0.110) and in favor of PBTtreadmill in the Stepping Threshold Test (p < 0.001, η2 = 0.395). The other outcomes demonstrated no significant group effects. Conclusion: Both training paradigms demonstrated high feasibility and were effective in improving specific motor performances in the fall-prone population and these effects were task specific. PBTtreadmill showed higher improvements in reactive balance, which might have been promoted by the unpredictable nature of the included perturbations and the similarity to the tested surface perturbation paradigm. PBTstability showed more wide-ranging effects on balance ability. Consequently, both paradigms improved fall risk-associated measures. The advantages of both formats should be evaluated in light of individual needs and preferences. Larger studies are needed to investigate the effects of these paradigms on real-life fall rates.
Sleuthing Hidden Order
Creators: name: Tripathi, V.
name: Chandra, P.
name: Coleman, P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Physicists have long debated whether the hidden order in URu2Si2 is itinerant or localized, and it remains inaccessible to direct external probes. Recent observation of an overdamped collective mode in this material (C. Weibe et al, Nature Physics 3, 96-100 (2007)), appears to resolve this outstanding issue.
description: Archival version of Nature Physics News and Views
The impact of feeding algae and canola oil on the growth, survival andreproduction of Moina sp.
Creators: name: Nadiah W. Rasdi
name: Yuslan, Amirah
name: Hidayu Suhaimi
name: Qin, Jian G.
name: Naseer, Nazira M.
name: M. Ikhwanuddin
name: Y. Yik Sung
name: Fatimah Md. Yusoff
name: Hagiwara, Atsushi
Publisher: name: Research and Development Office,Prince of Songkla University
Year: 2021
Subjects: freshwater zooplankton
Moina
enrichment
reproductive performance

description: Songklanakarin Journal of Science and Technology (SJST), 43, 3, 864-870
Mixed Model of Induced QCD
Creators: name: Migdal, A. A.
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The problems with the $Z_N$ symmetry breaking in the induced QCD are analyzed. We compute the Wilson loops in the strong coupling phase, but we do not find the $Z_N$ symmetry breaking, for arbitrary potential. We suggest to bypass this problem by adding to the model a heavy fermion field in a fundamental representation of $ SU(N) $. Remarkably, the model still can be solved exactly by the Rieman-Hilbert method, for arbitrary number $N_f$ of flavors. At $ N_f \ll N \rightarrow \infty $ there is a new regime, with two vacuum densities. The $Z_N$ symmetry breaking density satisfies the linear integral equation, with the kernel, depending upon the old density. The symmetry breaking requires certain eigenvalue condition, which takes some extra parameter adjustment of the scalar potential.
description: 14 pages, Latex, no figures, ( after final debugging )
Equivalence of nonequilibrium ensembles in turbulence models
Creators: name: Biferale, Luca
name: Cencini, Massimo
name: De Pietro, Massimo
name: Gallavotti, Giovanni
name: Lucarini, Valerio
Publisher: name: arXiv
Year: 2018
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Understanding under what conditions it is possible to construct equivalent ensembles is key to advancing our ability to connect microscopic and macroscopic properties of non-equilibrium statistical mechanics. In the case of fluid dynamical systems, one issue is to test whether different models for viscosity lead to the same macroscopic properties of the fluid systems in different regimes. Such models include, besides the standard choice of constant viscosity, cases where the time symmetry of the evolution equations is exactly preserved, as it must be in the corresponding microscopic systems, when available. Here a time-reversible dynamics is obtained by imposing the conservation of global observables. We test the equivalence of reversible and irreversible ensembles for the case of a multiscale shell model of turbulence. We verify that the equivalence is obeyed for the mean values of macroscopic observables, up to an error that vanishes as the system becomes more and more chaotic.
description: 11 pages, 9 figures
Resolving the instability of the Savvidy vacuum by dynamical gluon mass
Creators: name: Vercauteren, David
name: Verschelde, Henri
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we apply the formalism of local composite operators as developed by Verschelde et al. in combination with a constant chromomagnetic field as considered in the seventies by Savvidy and others. We find that a nonzero minimizes the vacuum energy, as in the case with no chromomagnetic field, and that the chromomagnetic field itself is near-to zero. The Nielsen-Olesen instability, caused by the imaginary part in the action, also vanishes. We further investigate the effect of an external chromomagnetic field on the value of , finding that this condensate is destroyed by sufficiently strong fields. The inverse scenario, where is considered as external, results in analogous findings: when this condensate is sufficiently large, the induced chromomagnetic field is lowered to a perturbative value slightly below the applied .
description: 11 pages, 8 figures
4D Gauge Theories with Conformal Matter
Creators: name: Apruzzi, Fabio
name: Heckman, Jonathan J.
name: Morrison, David R.
name: Tizzano, Luigi
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: One of the hallmarks of 6D superconformal field theories (SCFTs) is that on a partial tensor branch, all known theories resemble quiver gauge theories with links comprised of 6D conformal matter, a generalization of weakly coupled hypermultiplets. In this paper we construct 4D quiverlike gauge theories in which the links are obtained from compactifications of 6D conformal matter on Riemann surfaces with flavor symmetry fluxes. This includes generalizations of super QCD with exceptional gauge groups and quarks replaced by 4D conformal matter. Just as in super QCD, we find evidence for a conformal window as well as confining gauge group factors depending on the total amount of matter. We also present F-theory realizations of these field theories via elliptically fibered Calabi-Yau fourfolds. Gauge groups (and flavor symmetries) come from 7-branes wrapped on surfaces, conformal matter localizes at the intersection of pairs of 7-branes, and Yukawas between 4D conformal matter localize at points coming from triple intersections of 7-branes. Quantum corrections can also modify the classical moduli space of the F-theory model, matching expectations from effective field theory.
description: v2: 65 pages, 12 figures, clarifications and references added
Harnessing Task Mechanics for Robotic Pushing and Grasping
Creators: name: Jiaji  Zhou
Publisher: name: Carnegie Mellon University
Year: 2018
Subjects: subject: 80101 Adaptive Agents and Intelligent Robotics
subject: FOS: Computer and information sciences

description: A high-fidelity and tractable mechanics model of physical interaction is essential for autonomous robotic manipulation in complex and uncertain environments. This thesis studies several aspects of harnessing task mechanics for robotic pushing and grasping operations: mechanics model learning, pose and model uncertainty reduction, and planning and control synthesis in the minimal coordinate space. We begin with a study of the mechanics of planar sliding as captured by a proposed efficiently identifiable convex polynomial force-motion model. Given a position-controlled manipulator action, we derive a kinematic contact model that resolves the contact modes and instantaneous object motion. This enables a generic quasi-static planar contact simulation validated with extensive robotic grasping and pushing experiments. Based on the contact model, we prove that quasi-static pushing with a sticking contact is differentially flat using both graphical and algebraic derivations. The pusher-slider system is reducible to the Dubins car problem where the sticking contact constraints translate to bounded curvatures. For trajectory stabilization in the presence of model uncertainty, we design closed-loop control using dynamic feedback linearization or open-loop control using two contact points as a form of mechanical feedback. To reduce initial pose perception uncertainty, we propose a probabilistic algorithm that generates sequential uncertainty reduction actions based on finger encoder feedback until the object pose is uniquely known (subject to symmetry). Going beyond position-controlled planar manipulation, we demonstrate grasping a large-size book where the robot needs to perform a sequence of non-prehensile contact-rich actions to finish the task while obeying kinematic and hardware limitations. Such actions include reorienting the book by force-controlled twisting and pulling, and push-grasping in the gravity plane treating the table as a third supporting finger.
Handling Large-Scale Link-Flooding Attacks in the Internet
Creators: name: Kang, Min Suk
Publisher: name: Carnegie Mellon University
Year: 2016
Subjects: subject: Computer Engineering
subject: 90699 Electrical and Electronic Engineering not elsewhere classified
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Link-flooding attacks in which an adversary coordinates botnet messages to exhaust the bandwidth of selected network links in the core of the Internet (e.g., Tier-1 or Tier-2 networks) have been a powerful means of denial of service. In the past few years, these attacks have moved from the realm of academic curiosities to real-world incidents. Unfortunately, we have had a limited understanding of this type of attacks and effective countermeasures in the current Internet. In this dissertation, we address this gap in our understanding of link-flooding attacks and propose a two-tier defense approach. We begin by identifying routing bottlenecks as the major cause of the Internet vulnerability to link-flooding attacks. A routing bottleneck is a small set of links whose congestion disrupts the majority of routes taken towards a given set of destination hosts. These bottlenecks appear despite physicalpath diversity and sufficient bandwidth provisioning in normal (i.e., nonattack) mode of operation, and are an undesirable artifact of the current Internet design. We illustrate their pervasiveness for adversary-chosen sets of hosts in various cities and countries around the world via experimental measurements. We then present a real-time adaptive attack for persistent flooding of chosen links in the discovered routing bottlenecks using attack flows that are indistinguishable from legitimate traffic. We demonstrate the feasibility of these strategies and show that disruptions can scale from targeted hosts of a single organization to those of a country. To counter the link-flooding attacks defined in this dissertation, one could remove their root cause, namely the routing bottlenecks. However, this would affect the cost-minimizing policy that underlies the current Internet, change its routing architecture, and possibly affect communication costs. Instead, we propose an attack-deterrence mechanism that represents a first line of defense against link-flooding attacks by cost-sensitive adversaries. In the proposed defense, most link-flooding attacks are handled by the low-cost, single-domain based mechanism. As a second line of defense, which targets cost-insensitive adversaries that are undeterred, we propose the use of a multi-domain coordinated defense mechanism that is harder to orchestrate in the current Internet.
title: ADCO, Huitième cartulaire de Saint-Étienne de Dijon (1661-1667), Cart. 31 (G 135), 549 folios, f. 0830
Creators: name: de la Côte d'Or, Archives départementales
name: CG21/F.PETOT/2012
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
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: cartulaire
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: Huitième cartulaire de Saint-Étienne de Dijon (1661-1667), Archives départementales de la Côte-d'Or, Cart. 31 (G 135), 549 folios, f. 0830, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Huitième cartulaire de Saint-Étienne de Dijon (1661-1667), Archives départementales de la Côte-d'Or, Cart. 31 (G 135), 549 folios, f. 0830, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https://manuscrits.cbma-project.eu/
description: Provenance: abbaye Saint-Étienne de Dijon
description: Provenance: http://www.wikidata.org/entity/Q15945019
Leptonic Flavor-changing Z0 Decays in SU(2)xU(1) Theories with Right- handed Neutrinos
Creators: name: Koerner, J. G.
name: Pilaftsis, A.
name: Schilcher, K.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We analyze possible lepton-flavor-violating decays of the $Z^0$ particle in a minimal extension of the Standard Model, in which one right-handed neutral field for each family has been introduced. Such rare leptonic decays are induced by Majorana neutrinos at the first electroweak loop level and are generally not suppressed by the ordinary "see-saw" mechanism. In particular, we find that experimental bounds on branching ratios of the order of $10^{-5}-10^{-6}$ attainable at $LEP$ may impose constraints on lepton-flavor-mixing parameters and the masses of the heavy Majorana neutrinos.
description: 11 pages(2 Figs not included), LaTeX, MZ-TH/92-49
Seesaw Scale, Unification, and Proton Decay
Creators: name: Perez, Pavel Fileviez
name: Gross, Axel
name: Murgui, Clara
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate a simple realistic grand unified theory based on the $SU(5)$ gauge symmetry which predicts an upper bound on the proton decay lifetime for the channels $p \to K^+ \barν$ and $p \to π^+ \barν$, i.e. $τ(p \to K^+ \barν) \lesssim 3.4 \times 10^{35}$ and $τ(p \to π^+ \barν) \lesssim 1.7 \times 10^{34}$ years, respectively. In this context, the neutrino masses are generated through the type I and type III seesaw mechanisms, and one predicts that the field responsible for type III seesaw must be light with a mass below 500 TeV. We discuss the testability of this theory at current and future proton decay experiments.
description: new plot and appendix, minor corrections, version to appear in Physical Review D
Clouds, Gravity and Metallicity in Blue L dwarfs: The Case of 2MASS J11263991-5003550
Creators: name: Burgasser, Adam J.
name: Looper, Dagny L.
name: Kirkpatrick, J. Davy
name: Cruz, Kelle L.
name: Swift, Brandon J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Optical and near-infrared spectroscopy of the newly discovered peculiar L dwarf 2MASS J11263991-5003550 are presented. Folkes et al. identified this source as a high proper motion L9+/-1 dwarf based on its strong H2O absorption at 1.4 micron. We find that the optical spectrum of 2MASS J1126-5003 is in fact consistent with that of a normal L4.5 dwarf with notably enhanced FeH absorption at 9896 A. However, its near-infrared spectrum is unusually blue, with strong H2O and weak CO bands similar in character to several recently identified ``blue L dwarfs''. Using 2MASS J1126-5003 as a case study, and guided by trends in the condensate cloud models of Burrows et al. and Marley et al., we find that the observed spectral peculiarities of these sources can be adequately explained by the presence of thin and/or large-grained condensate clouds as compared to normal field L dwarfs. Atypical surface gravities or metallicities alone cannot reproduce the observed peculiarities, although they may be partly responsible for the unusual condensate properties. We also rule out unresolved multiplicity as a cause for the spectral peculiarities of 2MASS J1126-5003. Our analysis is supported by examination of Spitzer mid-infrared spectral data from Cushing et al. which show that bluer L dwarfs tend to have weaker 10 micron absorption, a feature tentatively associated with silicate oxide grains. With their unique spectral properties, blue L dwarfs like 2MASS J1126-5003 should prove useful in studying the formation and properties of condensates and condensate clouds in low temperature atmospheres.
description: 25 pages, 12 figures, accepted to ApJ
Hypergeometry inspired by irrationality questions
Creators: name: Krattenthaler, Christian
name: Zudilin, Wadim
Publisher: name: arXiv
Year: 2018
Subjects: subject: Number Theory (math.NT)
subject: Classical Analysis and ODEs (math.CA)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 11J72, 11M06, 11Y60, 33C20, 33D15, 33F10

description: We report new hypergeometric constructions of rational approximations to Catalan's constant, $\log2$, and $π^2$, their connection with already known ones, and underlying "permutation group" structures. Our principal arithmetic achievement is a new partial irrationality result for the values of Riemann's zeta function at odd integers.
description: AmS-LaTeX, 15 pages
Neutrino Masses in Flipped SU(5)
Creators: name: Leontaris, G. K.
name: Vergados, J. D.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We analyse the fermion masses and mixings in the flipped SU(5) model. The fermion mass matrices are evolved from the GUT scale down to $m_W$ by solving the renormalization group equations for the Yukawa couplings. The constraints imposed by the charged fermion data are then utilised to make predictions about the neutrino properties . It is found that the {\it generalized } see-saw mechanism which occurs naturally in this model can provide {\it i})a solution to the solar neutrino problem via the MSW mechanism and {\it ii})a sufficiently large $ν_{τ}$ mass to contribute as a hot dark matter component as indicated by the recent COBE data.
description: (14 Pages,No figures,TEX,IOA-290/92 preprint)
$SL(2,R)xSU(2)/R^2$ string model in curved spacetime and exact conformal results
Creators: name: Bars, I.
name: Sfetsos, K.
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Pursuing further the recent methods in the algebraic Hamiltonian approach to gauged WZW models, we apply them to the bosonic SL(2,R) X SU(2)/R^2 model recently investigated by Nappi and Witten. We find the global space and compute the conformally exact metric and dilaton fields to all orders in the $1/k$ expansion. The semiclassical limit $k',k\to \infty$ of our exact results agree with the lowest order perturbation computation which was done in the Lagrangian formalism. We also discuss the supersymmetric type-II and heterotic versions of this model and verify the non-renormalization of $e^Φ\sqrt{-G}$.
description: USC-92/HEP-B3, 13 pages and 1 figure
Multi-Higgs models with CP symmetries of increasingly high order
Creators: name: Ivanov, Igor P.
name: Laletin, Maxim
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: When building CP-symmetric models beyond the Standard Model, one can impose CP-symmetry of higher order. This means that one needs to apply the CP-transformation more than two times to get the identity transformation, but still the model is perfectly CP-conserving. A multi-Higgs-doublet model based on CP-symmetry of order 4, dubbed CP4, was recently proposed and its phenomenology is being explored. Here, we show that the construction does not stop at CP4. We build examples of renormalizable multi-Higgs-doublet potentials which are symmetric under CP8 or CP16, without leading to any accidental symmetry. If the vacuum conserves CP-symmetry of order 2k, then the neutral scalars become CP-eigenstates, which are characterized not by CP-parities but by CP-charges defined modulo 2k. One or more lightest states can be the dark matter candidates, which are protected against decay not by the internal symmetry but by the exotic CP. We briefly discuss their mass spectra and interaction patterns for CP8 and CP16.
description: 13 pages; v2: extra comments and references; v3: extra clarifications, matches published version
Apostol-Bernoulli functions, derivative polynomials and Eulerian polynomials
Creators: name: Boyadzhiev, Khristo N.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11B68, 11C08, 11M35, 33B99

description: This is a short survey of a class of functions introduces by Tom Apostol. The survey is focused on their relation to Eulerian polynomials, derivative polynomials, and also on some integral representations.
A dispersive approach to pion photo- and electroproduction
Creators: name: Drechsel, D.
name: Pasquini, B.
name: Tiator, L.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The relativistic amplitudes of pion photo- and electroproduction are calculated by dispersion relations at constant t. Several sum rules and low-energy theorems for the threshold amplitudes are investigated within this technique. The continuation of the amplitudes to sub-threshold kinematics is shown to provide a unique framework to derive the low-energy constants of chiral perturbation theory by global properties of the excitation spectrum.
description: 18 pages, 10 figures, Proc. Yang Fest, Taipei, June 2007
Dark-ages Reionization and Galaxy Formation Simulation - XIV. Gas accretion, cooling and star formation in dwarf galaxies at high redshift
Creators: name: Qin, Yuxiang
name: Duffy, Alan R.
name: Mutch, Simon J.
name: Poole, Gregory B.
name: Geil, Paul M.
name: Mesinger, Andrei
name: Wyithe, J. Stuart B.
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 study dwarf galaxy formation at high redshift ($z\ge5$) using a suite of high- resolution, cosmological hydrodynamic simulations and a semi-analytic model (SAM). We focus on gas accretion, cooling and star formation in this work by isolating the relevant process from reionization and supernova feedback, which will be further discussed in a companion paper. We apply the SAM to halo merger trees constructed from a collisionless N-body simulation sharing identical initial conditions to the hydrodynamic suite, and calibrate the free parameters against the stellar mass function predicted by the hydrodynamic simulations at z = 5. By making comparisons of the star formation history and gas components calculated by the two modelling techniques, we find that semi-analytic prescriptions that are commonly adopted in the literature of low-redshift galaxy formation do not accurately represent dwarf galaxy properties in the hydrodynamic simulation at earlier times. We propose 3 modifications to SAMs that will provide more accurate high-redshift simulations. These include 1) the halo mass and baryon fraction which are overestimated by collisionless N-body simulations; 2) the star formation efficiency which follows a different cosmic evolutionary path from the hydrodynamic simulation; and 3) the cooling rate which is not well defined for dwarf galaxies at high redshift. Accurate semi-analytic modelling of dwarf galaxy formation informed by detailed hydrodynamical modelling will facilitate reliable semi-analytic predictions over the large volumes needed for the study of reionization.
description: 20 pages, 10 figures; Updated to match the published version. All results and conclusions remain unchanged
Growth and Surface Studies of Two-Dimensional Materials
Creators: name: Mende, Patrick C.
Publisher: name: Carnegie Mellon University
Year: 2015
Subjects: subject: 20399 Classical Physics not elsewhere classified
subject: FOS: Physical sciences

description: In this thesis, surface studies of two-dimensional materials on various substrates will be presented. The central materials of interest are graphene and hexagonal boron nitride, with the former studied exclusively on silicon carbide. Hexagonal boron nitride will be studied both on epitaxial graphene on SiC, as well as on transition metal foils – specifically nickel and copper. The central experimental method by which we investigate these materials systems is low-energy electron microscopy (‘LEEM’ – used also to refer to the microscope itself). LEEM allows for not only the direct, real-space imaging of surfaces, but also the obtaining of low-energy electron diffraction patterns from areas as small as 1 μm in diameter. Using the LEEM, we may acquire so-called reflectivity spectra, which will be described in more detail in the body of the work. These spectra are compared to a first-principles model, which was originally developed for the interpretation of such data acquired from graphene on copper foils. A more detailed synopsis of this thesis can be found in the final section of Chapter 1.
Indications for a Detonating Quark-Gluon Plasma
Creators: name: Bilić, N.
name: Cleymans, J.
name: Suhonen, E.
name: von Oertzen, D. W.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We propose a mechanism which naturally contains the relation $μ_{B} = 3μ_{S}$ of the hadronic gas produced in heavy-ion collisions at CERN. Our starting assumption is the existence of a sharp front separating the quark-gluon plasma phase from the hadronic phase. Energy-momentum conservation across the front leads to the following consequences for an adiabatic process a) The baryon chemical potential, $μ_{B}$, is approximately continuous across the front. b) The temperature in the hadronic gas is higher than the phase transition temperature due to superheating. c) In the region covered by the experiments the velocity of the hadronic gas approximately equals the speed of sound in the hadronic gas.
description: Latex file 9 pages + 6 figures available as postscript files
Proceedings: 3rd International Conference on Food and Agricultural Economics: EFFECTS OF CONFLICTS ON FOOD SECURITY AND POVERTY STATUS OF IRISH POTATO FARMERS IN PLATEAU STATE, NIGERIA
Creators: name: Yisa, Ezekiel
name: Coker, Ayodeji
name: Etonihu, Ifeanyi
name: Adewumi, Adeoluwa
name: Yisa, Ezekiel
name: Coker, Ayodeji
name: Etonihu, Ifeanyi
name: Adewumi, Adeoluwa
Publisher: name: Unknown
Year: 2019
Subjects: subject: Food Security and Poverty
subject: Conflict
subject: Food Security
subject: Poverty Status

description: This study examined the effect of conflicts on food security and poverty status of Irish potato farmers in Plateau State, Nigeria. Multi-stage sampling technique was used to select a total of 225 respondents in the study area. Data for the research were collected with the aid of a well-structured questionnaire and were analyzed using descriptive statistics, United States food security scale, Foster-Greer-Thorbecke model, Probit regression and Ordered Logit regression model. Results showed that about 12% of respondents in the study area were food secured while 88% of the respondents were food insecure with various degrees of hunger. Majority (88.4%) of the respondents were poor and only 11.6% were non poor. Age, marital status, farm size, food expenditure, membership in cooperative and poverty status were found to be statistically significant factors at p<0.01 and p<0.05 levels of probability that affects the food security status of farmers during conflicts while level of education, farm size, labour and non-potato income were significant factors at p<0.01, p<0.05 and p<0.10 levels of probability respectively that affects the poverty status of respondents in the study area during conflicts. Also number of conflicts witnessed, household size and susceptibility to sickness were found to be statistically significant factors at p<0.01 and p<0.10 levels of probability that determine the susceptibility of respondents to conflicts. Respondents perceived and adopted adherence to curfew, living close to security post, cutting the size of meals and participation in community policing as effective coping strategies during conflicts in Plateau State. Agricultural credit should be made available to farmers through government intervention by statutory and commercial banks at little or no interest to increase crop production output, reduce poverty and improve food security status. Security post and barracks should be cited by government in rural communities to guarantee security of life and property.
Some Remarks About Induced QCD
Creators: name: Gross, David J.
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Migdal and Kazakov have suggested that lattice QCD with an adjoint representation scalar in the infinite coupling limit could induce QCD. I find an exact saddlepoint of this theory for infinite $N$ in the case of a quadratic scalar potential. I discuss some aspects of this solution and also show how the continuum D=1 matrix model with an arbitrary potential can be reproduced through this approach.
description: 9 pages, PUPT-1335
Looking to Listen at the Cocktail Party: A Speaker-Independent Audio-Visual Model for Speech Separation
Creators: name: Ephrat, Ariel
name: Mosseri, Inbar
name: Lang, Oran
name: Dekel, Tali
name: Wilson, Kevin
name: Hassidim, Avinatan
name: Freeman, William T.
name: Rubinstein, Michael
Publisher: name: arXiv
Year: 2018
Subjects: subject: Sound (cs.SD)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Audio and Speech Processing (eess.AS)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: We present a joint audio-visual model for isolating a single speech signal from a mixture of sounds such as other speakers and background noise. Solving this task using only audio as input is extremely challenging and does not provide an association of the separated speech signals with speakers in the video. In this paper, we present a deep network-based model that incorporates both visual and auditory signals to solve this task. The visual features are used to "focus" the audio on desired speakers in a scene and to improve the speech separation quality. To train our joint audio-visual model, we introduce AVSpeech, a new dataset comprised of thousands of hours of video segments from the Web. We demonstrate the applicability of our method to classic speech separation tasks, as well as real-world scenarios involving heated interviews, noisy bars, and screaming children, only requiring the user to specify the face of the person in the video whose speech they want to isolate. Our method shows clear advantage over state-of-the-art audio-only speech separation in cases of mixed speech. In addition, our model, which is speaker-independent (trained once, applicable to any speaker), produces better results than recent audio-visual speech separation methods that are speaker-dependent (require training a separate model for each speaker of interest).
description: Accepted to SIGGRAPH 2018. Project webpage: https://looking-to-listen.github.io
title: ADCO, Cartulaire de Cîteaux pour les possessions de Chaugey et Maison-Dieu (Fin XVe siècle), Cart. 181 (11 H 754), 165 folios, f. 0210
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: Petot, Frédéric
name: CG21/F.PETOT/2017
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: cartulaire
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge

description: Cartulaire de Cîteaux pour les possessions de Chaugey et Maison-Dieu (Fin XVe siècle), Archives départementales de la Côte-d'Or, Cart. 181 (11 H 754), 165 folios, f. 0210, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de Cîteaux pour les possessions de Chaugey et Maison-Dieu (Fin XVe siècle), Archives départementales de la Côte-d'Or, Cart. 181 (11 H 754), 165 folios, f. 0210, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
Thermal depinning and creep in strong pinning theory
Creators: name: Buchacek, Martin
name: Willa, Roland
name: Geshkenbein, Vadim B.
name: Blatter, Gianni
Publisher: name: arXiv
Year: 2018
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Pinning and thermal creep determine the response of numerous systems containing superstructures, e.g., vortices in type II superconductors, domain walls in ferroics, or dislocations in metals. The combination of drive and thermal fluctuations lead to the superstructure's depinning and its velocity $v$ determines the electric, magnetic, or mechanical response. It is commonly believed that pinning and creep collapse above the critical drive $F_c$, entailing a sharp rise in the velocity $v$. We challenge this perception by studying the effects of thermal fluctuations within the framework of strong vortex pinning in type-II superconductors. In fact, we show that pinning and thermal creep persist far beyond the critical force. The resulting force-velocity characteristic largely maintains its zero-temperature shape and thermal creep manifests itself by a downward renormalisation of the critical drive. Such characteristics is in agreement with Coulomb's law of dry friction and has been often observed in experiments.
Green Micromachining of Ceramics: Feasibility and Machinability
Creators: name: Onler, Recep
Publisher: name: Carnegie Mellon University
Year: 2018
Subjects: subject: Mechanical Engineering
subject: FOS: Mechanical engineering

description: Ceramics o er many unique mechanical, thermal, electrical and chemical properties that make them ideal materials for a broad range of applications. However, the same properties that make ceramics attractive materials also bring strict limitation to their manufacturability. The manufacturability limitations are further exacerbated at the microscale: although there are many potential applications for micro-scale features, components and devices made from ceramics, those applications cannot be realized without effective approaches for micro-manufacturing of ceramics
Frontier at your fingertips
Creators: name: Coleman, P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Between the nano- and micrometre scales, the collective behaviour of matter can give rise to startling emergent properties that hint at the nexus between biology and physics.
description: Archival copy of Nature Connections Article