cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Octonionic Membrane
Creators: name: Duff, M. J.
name: Evans, J. M.
name: Khuri, R. R.
name: Lu, J. X.
name: Minasian, R.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We generalize the supermembrane solution of D=11 supergravity by permitting the 4-form $G$ to be either self-dual or anti-self-dual in the eight dimensions transverse to the membrane. After analyzing the supergravity field equations directly, and also discussing necessary conditions for unbroken supersymmetry, we focus on two specific, related solutions. The self-dual solution is not asymptotically flat. The anti-self-dual solution is asymptotically flat, has finite mass per unit area and saturates the same mass=charge Bogomolnyi bound as the usual supermembrane. Nevertheless, neither solution preserves any supersymmetry. Both solutions involve the octonionic structure constants but, perhaps surprisingly, they are unrelated to the octonionic instanton 2-form $F$, for which $TrF \wedge F$ is neither self-dual nor anti-self-dual.
description: 17 pages, Latex; enhanced discussion on supersymmetry, some references added
Additional file 7: of Cytoplasmic glycoengineering of Apx toxin fragments in the development of Actinobacillus pleuropneumoniae glycoconjugate vaccines
Creators: name: Passmore, Ian
name: Andrejeva, Anna
name: Wren, Brendan
name: Cuccui, Jon
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Table S4. Oligonucleotides used in this study. (DOCX 13 kb)
Topfaith University, Mkpatak 2025/26 Application/Admission form is out☎️☎️ (09026529593) OR ☎️☎️ (+2349026529593) DR RITA. JUPEB/ IJMB/ TRANSFER/MASTERS/PHD FORM Candidates are required☎️☎️ (09026529593) OR☎️☎️ (+2349026529593) to have sat for the 2024 Unified Tertiary Matriculation Examination (UTME) with a minimum score as approved by JAMB. Applicants must also obtain a minimum of five credit passes at not more than two sittings in WAEC (SSCE) / NECO (SSCE) or NABTEB. These should include English Language, Mathematics and any three other subjects relevant to the proposed course of study.
Creators: name: Topfaith University, Mkpatak 2025/26 Application/Admission form is out☎️☎️ (09026529593) OR ☎️☎️ (+2349026529593) DR RITA. JUPEB/ IJMB/ TRANSFER/MASTERS/PHD FORM Candidates are required☎️☎️ (09026529593) OR☎️☎️ (+2349026529593) to have sat for the 2024 Unified Tertiary Matriculation Examination (UTME) with a minimum score as approved by JAMB. Applicants must also obtain a minimum of five credit passes at not more than two sittings in WAEC (SSCE) / NECO (SSCE) or NABTEB. These should include English Language, Mathematics and any three other subjects relevant to the proposed course of study.
Publisher: name: Zenodo
Year: 2025

description: Topfaith University, Mkpatak 2025/26 Application/Admission form is out☎️☎️ (09026529593) OR ☎️☎️ (+2349026529593) DR RITA. JUPEB/ IJMB/ TRANSFER/MASTERS/PHD FORM Candidates are required☎️☎️ (09026529593) OR☎️☎️ (+2349026529593) to have sat for the 2024 Unified Tertiary Matriculation Examination (UTME) with a minimum score as approved by JAMB. Applicants must also obtain a minimum of five credit passes at not more than two sittings in WAEC (SSCE) / NECO (SSCE) or NABTEB. These should include English Language, Mathematics and any three other subjects relevant to the proposed course of study.
Narrow photoluminescence peak of epitaxial MoS$_2$ on graphene/Ir(111)
Creators: name: Ehlen, Niels
name: Hall, Joshua
name: Senkovskiy, Boris V.
name: Hell, Martin
name: Li, Jun
name: Herman, d Alexander
name: Smirnov, Dmitry
name: Fedorov, Alexander
name: Voroshnin, Vladimir Yu.
name: di Santo, Giovanni
name: Petaccia, Luca
name: Michely, Thomas
name: Grüneis, Alexander
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report on the observation of photoluminescence (PL) with a narrow 18 meV peak width from molecular beam epitaxy grown MoS$_2$ on graphene/Ir(111). This observation is explained in terms of a weak graphene-MoS$_2$ interaction that prevents PL quenching expected for a metallic substrate. The weak interaction of MoS$_2$ with the graphene is highlighted by angle-resolved photoemission spectroscopy and temperature dependent Raman spectroscopy. These methods reveal that there is no hybridization between electronic states of graphene and MoS$_2$ and a different thermal expansion of graphene and MoS$_2$. Molecular beam epitaxy grown MoS2 on graphene is therefore an important platform for optoelectronics which allows for large area growth with controlled properties.
description: 18 pages, 5 figures, submitted for review
Stress-Energy-Momentum of Affine-Metric Gravity. Generalized Komar Superportential
Creators: name: Giachetta, G.
name: Sardanashvily, G.
Publisher: name: arXiv
Year: 1995
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In case of the Einstein's gravitation theory and its first order Palatini reformulation, the stress-energy-momentum of gravity has been proved to reduce to the Komar superpotential. We generalize this result to the affine-metric theory of gravity in case of general connections and arbitrary Lagrangian densities invariant under general covariant transformations. In this case, the stress-energy-momentum of gravity comes to the generalized Komar superpotential depending on a Lagrangian density in a precise way.
description: 12 pp, LaTeX file
Additional file 6: of Cytoplasmic glycoengineering of Apx toxin fragments in the development of Actinobacillus pleuropneumoniae glycoconjugate vaccines
Creators: name: Passmore, Ian
name: Andrejeva, Anna
name: Wren, Brendan
name: Cuccui, Jon
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Table S3. Plasmids used in this study. (DOCX 16 kb)
Piecewise-terminated spherical topological insulator as a virtual breadboard for Majorana circuitry
Creators: name: Durst, Adam C.
name: Ganeshan, Sriram
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We consider the surface states of a spherical topological insulator piecewise-terminated by superconductivity or ferromagnetism over various regions of the spherical surface. Such terminations gap the surface states by breaking U(1) particle-number symmetry or time-reversal symmetry, respectively. Interfaces and trijunctions between differently terminated surface regions can host propagating and bound Majorana modes, and the finite size of the spherical system makes it easily amenable to numerical analysis via exact diagonalization of the Bogoliubov-de Gennes Hamiltonian within a truncated Hilbert space. Creative termination patterning therefore allows one to prototype a variety of Majorana circuits, calculating energy spectra and plotting eigenfunctions over the spherical surface. We develop the computational framework for this approach, establishing a virtual breadboard for Majorana circuitry, and apply it to circuits of interest, including the Majorana analog of a Mach-Zehnder interferometer.
description: 10 pages, 5 figures
Decreased meiotic intergenic recombination and increased meiosis I nondisjunction in exo1 mutants of Saccharomyces cerevisiae.
Creators: name: The University of North Carolina at Chapel Hill University Libraries
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2000

description: Exonuclease I was originally identified as a 5' --> 3' deoxyribonuclease present in fractionated extracts of Schizosaccharomyces pombe and Saccharomyces cerevisiae. Genetic analysis of exo1 mutants of both yeasts revealed no major defect in meiosis, suggesting that exonuclease I is unlikely to be the primary activity that processes meiosis-specific double-strand breaks (DSBs). We report here that exo1 mutants of S. cerevisiae exhibit subtle but complex defects in meiosis. Diploids containing a homozygous deletion of EXO1 show decreased spore viability associated with an increase in meiosis I nondisjunction, while intergenic recombination is reduced about twofold. Exo1p functions in the same pathway as Msh5p for intergenic recombination. The length of heteroduplex tracts within the HIS4 gene is unaffected by the exo1 mutation. These results suggest that Exo1p is unlikely to play a major role in processing DSBs to form single-stranded tails at HIS4, but instead appears to promote crossing over to ensure disjunction of homologous chromosomes. In addition, our data indicate that exonuclease I may have a minor role in the correction of large DNA mismatches that occur in heteroduplex DNA during meiotic recombination at the HIS4 locus.
The field-theoretical approach to coherence in neutrino oscillations
Creators: name: Grimus, W.
name: Stockinger, P.
name: Mohanty, S.
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the conditions for the existence of neutrino oscillations in the field-theoretical approach which combines neutrino production and detection processes in a single Feynman graph. The ``oscillating neutrino'' is represented by an inner line of this graph where, due to the macroscopic distance L between source and detector, the neutrino propagators for neutrinos with definite mass are replaced by the projection operators unto the neutrino states on mass shell. We use as a concrete model reaction the neutrino source and detector as given in the LSND experiment and we carefully take into account the finite lifetime of the stopped muons which provide the anti-muon neutrino beam. We show that the field-theoretical approach provides a solid method to locate all possible conditions and allows to separate unambiguously their different origins. Some of these conditions are independent of L whereas others state that coherence is lost when L exceeds a certain ``coherence length''. Also it turns out that, at least in the concrete situation considered here, the concept of neutrino wave packets is not supported by the field-theoretical approach for realistic experimental conditions, i.e., the neutrino energy spread is incoherent in origin.
description: 18 pages, revtex, no figures. Typos corrected and improved presentation of sections I, V and VI, assumptions and conclusions unchanged
title: ADCO, Grènetier de Cîteaux : comptes (1499-1503) (11 H 1173), f. 00235
Creators: name: de la Côte-d'Or, Archives départementales
name: Petot, Frédéric
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: comptes
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP

description: Grènetier de Cîteaux : comptes (1499-1503), Archives départementales de la Côte-d'Or, (11 H 1173). Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Grènetier de Cîteaux : comptes (1499-1503), Archives départementales de la Côte-d'Or, (11 H 1173), f. 00235, 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
Cytisus nigricans Linnaeus 1753
Creators: name: Jarvis, Charlie
Publisher: name: Linnaean Society of London in association with the Natural History Museum
Year: 2007
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Fabales
Fabaceae
Cytisus
Cytisus nigricans

description: Cytisus nigricans Linnaeus, Species Plantarum 2: 739. 1753.
"Habitat in Austria, Pannonia, Bohemia, Italia." RCN: 5438.
 Lectotype (Cristofolini in Turland & Jarvis in Taxon 46: 468. 1997): Herb. Burser XXII: 11, left specimen (UPS).
 Current name:  Cytisus nigricans  L. (Fabaceae: Faboideae).
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part C), pp. 370-473 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 473, DOI: 10.5281/zenodo.291971
Additional file 1: of NCLcomparator: systematically post-screening non-co-linear transcripts (circular, trans-spliced, or fusion RNAs) identified from various detectors
Creators: name: Chia-Ying Chen
name: Trees-Juen Chuang
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Molecular Biology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Developmental Biology
subject: 60506 Virology

description: Table S1. Parameter settings of intragenic/intergenic NCL detectors tested in this study. (DOCX 34 kb)
M Theory from World-Sheet Defects in Liouville String
Creators: name: Ellis, John
name: Mavromatos, N. E.
name: Nanopoulos, D. V.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We have argued previously that black holes may be represented in a D-brane approach by monopole and vortex defects in a sine-Gordon field theory model of Liouville dynamics on the world sheet. Supersymmetrizing this sine-Gordon system, we find critical behaviour in 11 dimensions, due to defect condensation that is the world-sheet analogue of D-brane condensation around an extra space-time dimension in M theory. This supersymmetric description of Liouville dynamics has a natural embedding within a 12-dimensional framework suggestive of F theory.
description: 17 pages LATEX, 1 epsf figure included
Additional file 4: of Cytoplasmic glycoengineering of Apx toxin fragments in the development of Actinobacillus pleuropneumoniae glycoconjugate vaccines
Creators: name: Passmore, Ian
name: Andrejeva, Anna
name: Wren, Brendan
name: Cuccui, Jon
Publisher: name: figshare
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: Developmental Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Figure S3. MS/MS spectrum corresponding to peptide TGDGNDSITDSGGQDKLAFNATK from ApxIA modified with 1 (GNDSI) and 3 (FNATK) hexose units, showed continuous fragmentation ions, which confirm the peptide identity. (PDF 133 kb)
Selective and Efficient Quantum Process Tomography in Arbitrary Finite Dimension
Creators: name: Perito, Ignacio
name: Roncaglia, Augusto
name: Bendersky, Ariel
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The characterization of quantum processes is a key tool in quantum information processing tasks for several reasons: on one hand, it allows to acknowledge errors in the implementations of quantum algorithms; on the other, it allows to charcaterize unknown processes occurring in Nature. In previous works [Bendersky, Pastawski and Paz. Phys. Rev. Lett. 100, 190403 (2008) and Phys. Rev. A 80, 032116 (2009)] it was introduced a method to selectively and efficiently measure any given coefficient from the matrix description of a quantum channel. However, this method heavily relies on the construction of maximal sets of mutually unbiased bases (MUBs), which are known to exist only when the dimension of the Hilbert space is the power of a prime number. In this article, we lift the requirement on the dimension by presenting two variations of the method that work on arbitrary finite dimensions: one uses tensor products of maximally sets of MUBs, and the other uses a dimensional cutoff of a higher prime power dimension.
description: 8 pages, 3 figures
Additional file 5: of Cytoplasmic glycoengineering of Apx toxin fragments in the development of Actinobacillus pleuropneumoniae glycoconjugate vaccines
Creators: name: Passmore, Ian
name: Andrejeva, Anna
name: Wren, Brendan
name: Cuccui, Jon
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Table S2. Strains used in this study. (DOCX 15 kb)
No indications of metal-insulator transition for systems of interacting electrons in two dimensions
Creators: name: Berkovits, Richard
name: Kantelhardt, Jan W.
name: Avishai, Yshai
name: Havlin, Shlomo
name: Bunde, Armin
Publisher: name: arXiv
Year: 2000
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The influence of Coulomb interaction on transport properties of spinless electrons in small disordered two dimensional systems is studied within a tight binding model. Spatial correlations, inverse participation ratio, and multifractal spectrum of the zero temperature local tunneling amplitude as well as the DC Kubo conductance are traced as function of the interaction strength $U$. When $U$ is increased, all of the above quantities are shifted rather smoothly towards localized behavior, indicating the absence of an interaction driven insulator-metal transition.
description: 4 pages, 4 figures, accepted for publication in PRB
Nematicity in the pseudogap state of cuprate superconductors revealed by angle-resolved photoemission spectroscopy
Creators: name: Nakata, S.
name: Horio, M.
name: Koshiishi, K.
name: Hagiwara, K.
name: Lin, C.
name: Suzuki, M.
name: Ideta, S.
name: Tanaka, K.
name: Song, D.
name: Yoshida, Y.
name: Eisaki, H.
name: Fujimori, A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The nature of the pseudogap and its relationship with superconductivity are one of the central issues of cuprate superconductors. Recently, a possible scenario has been proposed that the pseudogap state is a distinct phase characterized by spontaneous rotational symmetry breaking called "nematicity" based on transport and magnetic susceptibility measurements, where the symmetry breaking was observed below the pseudogap temperature $T^*$. Here, we report a temperature-dependent ARPES study of nematicity in slightly overdoped Bi${}_{1.7}$Pb${}_{0.5}$Sr${}_{1.9}$CaCu${}_2$O${}_{8+δ}$ triggered by a uniaxial strain applied along one of the Cu-O bond directions. While the nematicity was enhanced in the pseudogap state as in the previous studies, it was suppressed in the superconducting state. These results indicate that the pseudogap state is characterized by spontaneous rotational symmetry breaking and that the nematicity may compete with superconductivity. These new experimental insights may provide clues for the nature of the pseudogap and its relation to the superconductivity.
Comments on the M Theory Approach to N=1 SQCD and Brane Dynamics
Creators: name: Brandhuber, A.
name: Itzhaki, N.
name: Kaplunovsky, V.
name: Sonnenschein, J.
name: Yankielowicz, S.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We use the M theory approach of Witten to investigate N=1 SU($N_c$) SQCD with $N_f$ flavors. We reproduce the field theoretical results and identify in M theory the gluino condensate and the eigenvalues of the meson matrix. This approach allows us to identify the constant piece of the effective field theory coupling from which the coefficient of the one-loop $β$-function can be identified. By studying the area of the M-theory five-brane we investigate the stability of type IIA brane configurations. We prove that in a supersymmetric setup there is no force between static D4-branes that end on NS five-branes. The force in the case that there is a relative velocity between the branes is computed. We show that at the regions of intersecting IIA branes the curvature of the M theory five-brane is singular in the type IIA limit.
description: 16 pages, latex, minor corrections with added reference
Measurement of the decay phi->mu+mu-
Creators: name: Achasov, M. N.
name: Baru, S. E.
name: Bozhenok, A. V.
name: Bukin, D. A.
name: Burdin, S. V.
name: Dimova, T. V.
name: Druzhinin, V. P.
name: Dubrovin, M. S.
name: Gaponenko, I. A.
name: Golubev, V. B.
name: Ivanchenko, V. N.
name: Ivanov, P. I.
name: Korol, A. A.
name: Koshuba, S. V.
name: Perevedentsev, E. A.
name: Pyata, E. E.
name: Salnikov, A. A.
name: Serednyakov, S. I.
name: Shary, V. V.
name: Shatunov, Yu. M.
name: Sidorov, V. A.
name: Silagadze, Z. K.
name: Usov, Yu. V.
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The process e^+e^- ->mu^+mu^- has been studied with SND detector at VEPP-2M e^+e^- collider in the vicinity of phi(1020) resonance. The product of branching ratios of phi meson into leptons \sqrt{B(phi->mu^+mu^-) B(phi-> e^+e^-)}=(3.14+-0.22+-0.14)x10^{-4} was measured from the interference in the cross section of the process e^+e^- ->mu^+mu^-. The branching ratio B(phi->mu^+mu^-)=(3.30+-0.45+-0.32)x10^{-4} was obtained.
description: 6 pages, 5 figures, to be published in Physics Letters B
Renormalons
Creators: name: Beneke, M.
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A certain pattern of divergence of perturbative expansions in quantum field theories, related to their small and large momentum behaviour, is known as renormalons. We review formal and phenomenological aspects of renormalon divergence. We first summarize what is known about ultraviolet and infrared renormalons from an analysis of Feynman diagrams. Because infrared renormalons probe large distances, they are closely connected with non-perturbative power corrections in asymptotically free theories such as QCD. We discuss this aspect of the renormalon phenomenon in various contexts, and in particular the successes and failures of renormalon-inspired models of power corrections to hard processes in QCD.
description: 168 pages, LaTeX, 23 figures, rmpbib.sty file required and included. v2: minor rearrangements, bibliographical style changed
The strong Atiyah and Lück approximation conjectures for one-relator groups
Creators: name: Jaikin-Zapirain, Andrei
name: López-Álvarez, Diego
Publisher: name: arXiv
Year: 2018
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: It is shown that the strong Atiyah conjecture and the Lück approximation conjecture in the space of marked groups hold for locally indicable groups. In particular, this implies that one-relator groups satisfy both conjectures. We also show that the center conjecture, the independence conjecture and the strong eigenvalue conjecture hold for these groups. As a byproduct we prove that the group algebra of a locally indicable group over a field of characteristic zero has a Hughes-free epic division algebra and, in particular, it is embedded in a division algebra.
description: Corrected typos
Geometric Interpretation and Classification of Global Solutions in Generalized Dilaton Gravity
Creators: name: Katanaev, M. O.
name: Kummer, W.
name: Liebl, H.
Publisher: name: arXiv
Year: 1995
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Two dimensional gravity with torsion is proved to be equivalent to special types of generalized 2d dilaton gravity. E.g. in one version, the dilaton field is shown to be expressible by the extra scalar curvature, constructed for an independent Lorentz connection corresponding to a nontrivial torsion. Elimination of that dilaton field yields an equivalent torsionless theory, nonpolynomial in curvature. These theories, although locally equivalent exhibit quite different global properties of the general solution. We discuss the example of a (torsionless) dilaton theory equivalent to the $R^2 + T^2$--model. Each global solution of this model is shown to split into a set of global solutions of generalized dilaton gravity. In contrast to the theory with torsion the equivalent dilaton one exhibits solutions which are asymptotically flat in special ranges of the parameters. In the simplest case of ordinary dilaton gravity we clarify the well known problem of removing the Schwarzschild singularity by a field redefinition.
description: 21 pages, 6 Postscript figures
Giant spontaneous Hall effect in a nonmagnetic Weyl-Kondo semimetal
Creators: name: Dzsaber, Sami
name: Yan, Xinlin
name: Taupin, Mathieu
name: Eguchi, Gaku
name: Prokofiev, Andrey
name: Shiroka, Toni
name: Blaha, Peter
name: Rubel, Oleg
name: Grefe, Sarah E.
name: Lai, Hsin-Hua
name: Si, Qimiao
name: Paschen, Silke
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Nontrivial topology in condensed matter systems enriches quantum states of matter, to go beyond either the classification into metals and insulators in terms of conventional band theory or that of symmetry broken phases by Landau's order parameter framework. So far, focus has been on weakly interacting systems, and little is known about the limit of strong electron correlations. Heavy fermion systems are a highly versatile platform to explore this regime. Here we report the discovery of a giant spontaneous Hall effect in the Kondo semimetal Ce3Bi4Pd3 that is noncentrosymmetric but preserves time reversal symmetry. We attribute this finding to Weyl nodes - singularities of the Berry curvature - that emerge in the immediate vicinity of the Fermi level due to the Kondo interaction. We stress that this phenomenon is distinct from the previously detected anomalous Hall effect in materials with broken time reversal symmetry; instead, it manifests an extreme topological response that requires a beyond-perturbation-theory description of the previously proposed nonlinear Hall effect. The large magnitude of the effect in even tiny electric and zero magnetic fields, as well as its robust bulk nature may aid the exploitation in topological quantum devices.
description: preprint (including supplementary information) of 29 pages, 4 main figures, 12 supplementary figures; to appear in Proc. Natl. Acad. Sci. U.S.A
Origins of molecular clouds in early-type galaxies
Creators: name: Babyk, Iu. V.
name: McNamara, B. R.
name: Tamhane, P. D.
name: Nulsen, P. E. J.
name: Russell, H. R.
name: Edge, A. C.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We analyze $Chandra$ observations of the hot atmospheres of 40 early spiral and elliptical galaxies. Using new temperature, density, cooling time, and mass profiles, we explore relationships between their hot atmospheres and cold molecular gas. Molecular gas mass correlates with atmospheric gas mass and density over four decades from central galaxies in clusters to normal giant ellipticals and early spirals. The mass and density relations follow power laws: $M_{\rm mol} \propto M_{\rm X}^{1.4\pm0.1}$ and $M_{\rm mol} \propto n_{\rm e}^{1.8\pm0.3}$, respectively, at 10 kpc. The ratio of molecular gas to atmospheric gas within a 10 kpc radius lies between $3\%$ and $10\%$ for early-type galaxies and between $3\%$ and $50\%$ for central galaxies in clusters. Early-type galaxies have detectable levels of molecular gas when their atmospheric cooling times falls below $\sim \rm Gyr$ at a radius of 10 kpc. A similar trend is found in central cluster galaxies. We find no relationship between the ratio of the cooling time to free fall time, $t_{\rm c}/t_{\rm ff}$, and the presence or absence of molecular clouds in early-type galaxies. The data are consistent with much of the molecular gas in early-type galaxies having condensed from their hot atmospheres.
description: 15 pages, 11 figures, 3 tables; accepted for publication in ApJ; We clarified and increased the discussion of molecular cloud formation in the Introduction and Discussion sections. We discussed three mechanisms of the origin of cold gas in early-type galaxies, including mergers, atmospheric cooling, and stellar ejecta. We pointed out the importance of HI to the picture
University Dropout Prediction through Educational Data Mining Techniques: A Systematic Review
Creators: name: Agrusti, Francesco
name: Bonavolontà, Gianmarco
name: Mezzini, Mauro
Publisher: name: Journal of e-Learning and Knowledge Society
Year: 2019

description: The dropout rates in the European countries is one of the major issues to be faced in a near future as stated in the Europe 2020 strategy. In 2017, an average of 10.6% of young people (aged 18-24) in the EU-28 were early leavers from education and training according to Eurostat’s statistics. The main aim of this review is to identify studies which uses educational data mining techniques to predict university dropout in traditional courses. In Scopus and Web of Science (WoS) catalogues, we identified 241 studies related to this topic from which we selected 73, focusing on what data mining techniques are used for predicting university dropout. We identified 6 data mining classification techniques, 53 data mining algorithms and 14 data mining tools.
description: Journal of e-Learning and Knowledge Society, Vol 15 No 3 (2019): LEARNING ANALYTICS: FOR A DIALOGUE BETWEEN TEACHING PRACTICES AND EDUCATIONAL RESEARCH
An analysis of high-frequency cryptocurrencies prices dynamics using permutation-information-theory quantifiers
Creators: name: Bariviera, Aurelio F.
name: Zunino, Luciano
name: Rosso, Osvaldo A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Statistical Finance (q-fin.ST)
subject: Chaotic Dynamics (nlin.CD)
subject: Risk Management (q-fin.RM)
subject: FOS: Economics and business
subject: FOS: Physical sciences

description: This paper discusses the dynamics of intraday prices of twelve cryptocurrencies during last months' boom and bust. The importance of this study lies on the extended coverage of the cryptoworld, accounting for more than 90\% of the total daily turnover. By using the complexity-entropy causality plane, we could discriminate three different dynamics in the data set. Whereas most of the cryptocurrencies follow a similar pattern, there are two currencies (ETC and ETH) that exhibit a more persistent stochastic dynamics, and two other currencies (DASH and XEM) whose behavior is closer to a random walk. Consequently, similar financial assets, using blockchain technology, are differentiated by market participants.
description: 17 pages, 5 figures. arXiv admin note: text overlap with arXiv:1508.04748
Data management in Learning Analytics: terms and perspectives
Creators: name: Bellini, Claudia
name: De Santis, Annamaria
name: Sannicandro, Katia
name: Minerva, Tommaso
Publisher: name: Journal of e-Learning and Knowledge Society
Year: 2019

description: On-line teaching environments acquire extremely high granularity data, both on users' personal profiles and on their behaviour and results. Learning Analytics open to a numerous possible research scenario, thanks to development of technology and the speed to collect data. One of the characteristic elements is that the data is not anonymous but reproduces a personalization and identification of the profiles. Identifiability of the student is implicit in a teaching process, but access to Analytics techniques reveals a fundamental question: “What is the limit?”. The answer to this question should be preliminary to any use of data by users (students), teachers, instructors and managers of the online learning environments. Nowadays, we’re also experiencing a particular moment of change: the producing of effects concretely of the European General Data Protection Regulation (GDPR) 679/2016, the general regulation on the protection of personal data which aims to standardize all national legislation and adapt it to the new needs dictated by the evolving technological context. The objective of this work is to propose a three-points checklist list of the questions connected to management and limit of teacher’s use of data in Learning Analytics and student right of transparency in the context of Higher Digital Education to take into account before every work and research. To this end, paper contain an examination of the literatures on privacy and ethic debate in LA. Work continues with legislation’ review, with particular reference to the Italian path, and the discussion about online data management in our current universities two-speed context: that of technology and that of legislation.
description: Journal of e-Learning and Knowledge Society, Vol 15 No 3 (2019): LEARNING ANALYTICS: FOR A DIALOGUE BETWEEN TEACHING PRACTICES AND EDUCATIONAL RESEARCH
NMR and NQR Fluctuation Effects in Layered Superconductors
Creators: name: Fay, D.
name: Appel, J.
name: Timm, C.
name: Zabel, A.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study the effect of thermal fluctuations of the s-wave order parameter of a quasi two dimensional superconductor on the nuclear spin relaxation rate near the transition temperature Tc. We consider both the effects of the amplitude fluctuations and the Berezinskii-Kosterlitz-Thouless (BKT) phase fluctuations in weakly coupled layered superconductors. In the treatment of the amplitude fluctuations we employ the Gaussian approximation and evaluate the longitudinal relaxation rate 1/T1 for a clean s-wave superconductor, with and without pair breaking effects, using the static pair fluctuation propagator D. The increase in 1/T1 due to pair breaking in D is overcompensated by the decrease arising from the single particle Green's functions. The result is a strong effect on 1/T1 for even a small amount of pair breaking. The phase fluctuations are described in terms of dynamical BKT excitations in the form of pancake vortex-antivortex (VA) pairs. We calculate the effect of the magnetic field fluctuations caused by the translational motion of VA excitations on 1/T1 and on the transverse relaxation rate 1/T2 on both sides of the BKT transitation temperature T(BKT)
description: 38 pages, 12 figures
High Efficiency Terahertz Generation in a Multi-Stage System
Creators: name: Wang, Lu
name: Fallahi, Arya
name: Ravi, Koustuban
name: Kärtner, Franz
Publisher: name: arXiv
Year: 2018
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We describe a robust system for laser-driven narrowband terahertz generation with high conversion efficiency in periodically poled Lithium Niobate (PPLN). In the multi-stage terahertz generation system, the pump pulse is recycled after each PPLN stage for further terahertz generation. By out-coupling the terahertz radiation generated in each stage, extra absorption is circumvented and effective interaction length is increased. The separation of the terahertz and optical pulses at each stage is accomplished by an appropriately designed out-coupler. To evaluate the proposed architecture, the governing 2-D coupled wave equations in a cylindrically symmetric geometry are numerically solved using the finite difference method. Compared to the 1-D calculation which cannot capture the self-focusing and diffraction effects, our 2-D numerical method captures the effects of difference frequency generation, self-phase modulation, self-focusing, beam diffraction, dispersion, and terahertz absorption. We found that the terahertz generation efficiency can be greatly enhanced by compensating the dispersion of the pump pulse after each stage. With a two-stage system, we predict the generation of a $17.6$ mJ terahertz pulse with total conversion efficiency $η_{\text{total}}=1.6\%$ at $0.3$ THz using a 1.1 J pump laser with a two-line spectrum centered at 1 $μ$m. The generation efficiency of each stage is above $0.8\%$ with the out-coupling efficiencies above $93.0\%$.
Reflecting A… “Bit”. What Relationship Between Metacognition And ICT?
Creators: name: Cadamuro, Alessia
name: Bisagno, Elisa
name: Pecini, Chiara
name: Vezzali, Loris
Publisher: name: Journal of e-Learning and Knowledge Society
Year: 2019

description: Using Information and Communication Technologies (ICT) in educational environments has become widespread in latest years. Since research underlined the important role played by metacognition and self-regulation abilities in fostering learning outcomes, the relationship between these aspects appears to be particularly worthy of investigation. In this review, we present 14 studies that have deepened the relationship between ICT, metacognitive skills and learning outcomes by identifying two main categories. Some articles investigated the effects of ICT environments combined with metacognitive aspects of learning outcomes, while others investigated the reciprocal relationship between ICT and metacognition. In general, from our review, the interaction between ICT and metacognition in producing better learning outcomes appears well established and the results highlight a bi-directional relationship between metacognition and ICT, but also allow to draw attention to gaps requiring further research.
description: Journal of e-Learning and Knowledge Society, Vol 15 No 3 (2019): LEARNING ANALYTICS: FOR A DIALOGUE BETWEEN TEACHING PRACTICES AND EDUCATIONAL RESEARCH
Additional file 3: of Cytoplasmic glycoengineering of Apx toxin fragments in the development of Actinobacillus pleuropneumoniae glycoconjugate vaccines
Creators: name: Passmore, Ian
name: Andrejeva, Anna
name: Wren, Brendan
name: Cuccui, Jon
Publisher: name: figshare
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: Developmental Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Figure S2. MS/MS spectrum corresponding to peptide GSNATDISVGK from ApxIA modified with 4 hexose units, showed continuous fragmentation ions, which confirm the peptide identity. (PDF 125 kb)
title: ADCO, Sixième cartulaire de Saint-Étienne de Dijon (1662), Cart. 30 (G 133), 441 folios, f. 468
Creators: name: de la Côte d'Or, Archives départementales
name: Petot, Frédéric
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2012
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: cartulaire

description: Sixième cartulaire de Saint-Étienne de Dijon (1662), Archives départementales de la Côte-d'Or, Cart. 30 (G 133), 441 folios, f. 468, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Sixième cartulaire de Saint-Étienne de Dijon (1662), Archives départementales de la Côte-d'Or, Cart. 30 (G 133), 441 folios, f. 468, 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
Additional file 2: of Cytoplasmic glycoengineering of Apx toxin fragments in the development of Actinobacillus pleuropneumoniae glycoconjugate vaccines
Creators: name: Passmore, Ian
name: Andrejeva, Anna
name: Wren, Brendan
name: Cuccui, Jon
Publisher: name: figshare
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Sociology
subject: FOS: Sociology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Inorganic Chemistry

description: Figure S1. MS/MS spectrum corresponding to peptide GDDEIYGNDTHDILYGDDGNDVIHGGDGNDHLVGGNGNDR from ApxIA modified with 2 hexose units, showed continuous fragmentation ions, which confirm the peptide identity. However, the modified site could not be conclusively determined. (PDF 142 kb)
Light Mesons elm Form Factor and Running Coupling Effects
Creators: name: Agaev, S. S.
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The pion and kaon electromagnetic form factors $F_{M}(Q^2)$ are calculated at the leading order of pQCD using the running coupling constant method. In computations dependence of the meson distribution amplitudes on the hard scale $Q^2$ is taken into account. The Borel transform and resummed expression for $F_{M}(Q^2)$ are found. The effect of the next-to-leading order term in expansion of $α_{S}(λQ^2)$ in terms of $α_{S}(Q^2)$ on the pion form factor $F_π(Q^2)$ is discussed, comparison is made with the infrared matching scheme's result.
description: 10 pages, 2 figures. Talk given at the Euroconference QCD98, Montpellier 2-8th July 1998, France; to appear in Proceedings
Optimality in self-organized molecular sorting
Creators: name: Zamparo, Marco
name: Valdembri, Donatella
name: Serini, Guido
name: Kolokolov, Igor V.
name: Lebedev, Vladimir V.
name: Dall'Asta, Luca
name: Gamba, Andrea
Publisher: name: arXiv
Year: 2018
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Quantitative Methods (q-bio.QM)
subject: Subcellular Processes (q-bio.SC)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We introduce a simple physical picture to explain the process of molecular sorting, whereby specific proteins are concentrated and distilled into submicrometric lipid vesicles in eukaryotic cells. To this purpose, we formulate a model based on the coupling of spontaneous molecular aggregation with vesicle nucleation. Its implications are studied by means of a phenomenological theory describing the diffusion of molecules towards multiple sorting centers that grow due to molecule absorption and are extracted when they reach a sufficiently large size. The predictions of the theory are compared with numerical simulations of a lattice-gas realization of the model and with experimental observations. The efficiency of the distillation process is found to be optimal for intermediate aggregation rates, where the density of sorted molecules is minimal and the process obeys simple scaling laws. Quantitative measures of endocytic sorting performed in primary endothelial cells are compatible with the hypothesis that these optimal conditions are realized in living cells.
Cytisus striatus Rothm.
Creators: name: Jarvis, Charlie
Publisher: name: Linnaean Society of London in association with the Natural History Museum
Year: 2007
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Fabales
Fabaceae
Cytisus
Cytisus striatus

description: Cytisus patens Linnaeus, Systema Vegetabilium, ed. 13: 555. 1774.
RCN: 5441.
 Lectotype (Cristofolini in Turland & Jarvis in Taxon 46: 468. 1997): Herb. Linn. No. 912.8 (LINN).
 Current name:  Cytisus striatus  (Hill) Rothm. (Fabaceae: Faboideae).
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part C), pp. 370-473 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 473, DOI: 10.5281/zenodo.291971
Kinematics and Dynamics of $f(R)$ Theories of Gravity
Creators: name: Rippl, Steve
name: van Elst, Henk
name: Tavakol, Reza
name: Taylor, David
Publisher: name: arXiv
Year: 1995
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We generalise the equations governing relativistic fluid dynamics given by Ehlers and Ellis for general relativity, and by Maartens and Taylor for quadratic theories, to generalised $f(R)$ theories of gravity. In view of the usefulness of this alternative framework to general relativity, its generalisation can be of potential importance for deriving analogous results to those obtained in general relativity. We generalise, as an example, the results of Maartens and Taylor to show that within the framework of general $f(R)$ theories, a perfect fluid spacetime with vanishing vorticity, shear and acceleration is Friedmann--Lema\^ıtre--Robertson--Walker only if the fluid has in addition a barotropic equation of state. It then follows that the Ehlers--Geren--Sachs theorem and its ``almost'' extension also hold for $f(R)$ theories of gravity.
description: 13 pages, latex, to appear in GRG
Measurement of High-Q^2 Neutral-Current e^+p Deep Inelastic Scattering Cross-Sections at HERA
Creators: name: ZEUS Collaboration
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The e^+p neutral-current deep inelastic scattering differential cross-sections $dσ/dQ^2$, for Q^2 > 400 GeV^2, $dσ/dx$ and $dσ/dy$, for Q^2 > 400, 2500 and 10000 GeV^2, have been measured with the ZEUS detector at HERA. The data sample of 47.7 pb^-1 was collected at a center-of-mass energy of 300 GeV. The cross-section, $dσ/dQ^2$, falls by six orders of magnitude between Q^2 = 400 and 40000 GeV^2. The predictions of the Standard Model are in very good agreement with the data. Complementing the observations of time-like Z^0 contributions to fermion-antifermion annihilation, the data provide direct evidence for the presence of Z^0 exchange in the space-like region explored by deep inelastic scattering.
description: 28 pages including 8 figures; final version for Euro. Phys. J