cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
AdS4/CFT3+Gravity for Accelerating Conical Singularities
Creators: name: Anber, Mohamed M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the quantum-mechanical corrections to two point particles accelerated by a strut in a 2+1 D flat background. Since the particles are accelerating, we use finite temperature techniques to compute the Green's function of a conformally coupled scalar applying transparent and Dirichlet boundary conditions at the location of the strut. We find that the induced energy-momentum tensor diverges at the position of the strut unless we impose transparent boundary conditions. Further, we use the regular form of the induced energy-momentum tensor to calculate the gravitational backreaction on the original space. The resulting metric is a constant $ϕ$ section of the 4-dimensional C-metric, and it describes two black holes corrected by weakly coupled CFT and accelerating in asymptotically flat spacetime. Interestingly enough, the same form of the metric was obtained before in 0803.2242 by cutting the AdS C-metric with angular dependent critical 2-brane. According to AdS/CFT+gravity conjecture, the latter should describe strongly coupled CFT black holes accelerating on the brane. The presence of the CFT at finite temperature gives us a unique opportunity to study the AdS/CFT+gravity conjecture at finite temperatures. We calculate various thermodynamic parameters to shed light on the nature of the strongly coupled CFT. This is the first use of the duality in a system containing accelerating particles on the brane.
description: 27 pages,8 figures, 3 appendices
Dispersionless propagation of ultra-short spin-wave pulses in ultrathin yttrium iron garnet waveguides
Creators: name: Divinskiy, B.
name: Merbouche, H.
name: Nikolaev, K. O.
name: de Vasoncellos, S. Michaelis
name: Bratschitsch, R.
name: Gouere, D.
name: Lebrun, R.
name: Cros, V.
name: Youssef, J. Ben
name: Bortolotti, P.
name: Anane, A.
name: Demokritov, S. O.
name: Demidov, V. E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We study experimentally the propagation of nanosecond spin-wave pulses in microscopic waveguides made of nanometer-thick yttrium iron garnet films. For these studies, we use micro-focus Brillouin light scattering spectroscopy, which provides the possibility to observe propagation of the pulses with high spatial and temporal resolution. We show that, for most spin-wave frequencies, dispersion leads to broadening of the pulse by several times at propagation distances of 10 micrometers. However, for certain frequency interval, the dispersion broadening is suppressed almost completely resulting in a dispersionless pulse propagation. We show that the formation of the dispersion-free region is caused by the competing effects of the dipolar and the exchange interaction, which can be controlled by the variation of the waveguide geometry. These conclusions are supported by micromagnetic simulations and analytical calculations. Our findings provide a simple solution for the implementation of high-speed magnonic systems that require undisturbed propagation of short information-carrying spin-wave pulses.
${L^p}$-variations for multifractal fractional random walks
Creators: name: Ludeña, Carenne
Publisher: name: arXiv
Year: 2008
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60F05, 60G57, 60K40, 62F10 (Primary) 60G15, 60G18, 60E07 (Secondary)

description: A multifractal random walk (MRW) is defined by a Brownian motion subordinated by a class of continuous multifractal random measures $M[0,t], 0\le t\le1$. In this paper we obtain an extension of this process, referred to as multifractal fractional random walk (MFRW), by considering the limit in distribution of a sequence of conditionally Gaussian processes. These conditional processes are defined as integrals with respect to fractional Brownian motion and convergence is seen to hold under certain conditions relating the self-similarity (Hurst) exponent of the fBm to the parameters defining the multifractal random measure $M$. As a result, a larger class of models is obtained, whose fine scale (scaling) structure is then analyzed in terms of the empirical structure functions. Implications for the analysis and inference of multifractal exponents from data, namely, confidence intervals, are also provided.
description: Published in at http://dx.doi.org/10.1214/07-AAP483 the Annals of Applied Probability (http://www.imstat.org/aap/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Quantum speed of evolution in a Markovian bosonic environment
Creators: name: Marian, Paulina
name: Marian, Tudor A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We present explicit evaluations of quantum speed limit times pertinent to the Markovian dynamics of an open continuous-variable system. Specifically, we consider the standard setting of a cavity mode of the quantum radiation field weakly coupled to a thermal bosonic reservoir. The evolution of the field state is ruled by the quantum optical master equation, which is known to have an exact analytic solution. Starting from a pure input state, we employ two indicators of how different the initial and evolved states are, namely, the fidelity of evolution and the Hilbert-Schmidt distance of evolution. The former was introduced by del Campo {\em et al.} who derived a time-independent speed limit for the evolution of a Markovian open system. We evaluate it for this field-reservoir setting, with an arbitrary input pure state of the field mode. The resultant formula is then specialized to the coherent and Fock states. On the other hand, we exploit an alternative approach that employs both indicators of evolution mentioned above. Their rates of change have the same upper bound, and consequently provide a unique time-dependent quantum speed limit. It turns out that the associate quantum speed limit time built with the Hilbert-Schmidt metric is tighter than the fidelity-based one. As apposite applications, we investigate the damping of the coherent and Fock states by using the characteristic functions of the corresponding evolved states. General expressions of both the fidelity and the Hilbert-Schmidt distance of evolution are obtained and analyzed for these two classes of input states. In the case of a coherent state, we derive accurate formulas for their common speed limit and the pair of associate limit times.
description: 6 figures
Additional file 2 of Comparison of COVID-19 outcomes in organ transplant recipients (OTr) and non-transplant patients: a study protocol for rapid review
Creators: name: Lerner, Alexis H.
name: Klein, Elizabeth J.
name: Hardesty, Anna
name: Panagiotou, Orestis A.
name: Misquith, Chelsea
name: Farmakiotis, Dimitrios
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Developmental Biology
subject: Cancer

description: Additional file 2. Search Strategy
Implications of the discovery of a Higgs triplet on electroweak right-handed neutrinos
Creators: name: Aranda, Alfredo
name: Hernandez-Sanchez, J.
name: Hung, P. Q.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Electroweak scale active right-handed neutrinos such as those proposed in a recent model necessitate the enlargement of the SM Higgs sector to include Higgs triplets with doubly charged scalars. The search for and constraints on such Higgs sector has implications not only on the nature of the electroweak symmetry breaking but also on the possibility of testing the seesaw mechanism at colliders such as the LHC and the ILC.
description: RevTex, 20 pages, 8 figures. Version which appeared in JHEP 0811:092, 2008. Minor typos corrected and minor comments added
$^{26}$Al production from magnetically induced extramixing in AGB Stars
Creators: name: Palmerini, S.
name: Busso, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We discuss nucleosynthesis results obtained following the recent suggestion that extramixing phenomena in red giants might be driven by magnetic buoyancy. We explore for this model the production of the short-lived radioactive isotope $^{26}$Al and of stable light nuclei, considering both the case of the general buoyancy of flux tubes and that of the intermittent release of magnetized unstable structures. We show that abundant $^{26}$Al can be produced, up to, and above, the highest levels measured in presolar grains. This level would be also sufficient to explain the early solar system $^{26}$Al as coming from a nearby AGB star of low mass. The case of fast-moving instabilities is the most efficient, reaching almost the same effectiveness as hot bottom burning (HBB).
On the Enhancement of Mass Loss in Cepheids Due to Radial Pulsation. II. The Effect of Metallicity
Creators: name: Neilson, Hilding R.
name: Lester, John B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: It has been observed that Cepheids in the Magellanic Clouds have lower masses for the same luminosity than those in the Milky Way. The model, from Neilson & Lester (2008), of pulsation-driven mass loss for Cepheids is applied to theoretical models of Cepheids with metallicity consistent with the Milky Way and Large and Small Magellanic Clouds. The mass-loss model is analyzed using the metallicity correction of the Period-Luminosity relation to compare the ratio of mass loss of Cepheids with lower metallicity to that of Cepheids with solar metallicity. It is determined that mass loss may be larger for the lower metallicity Cepheids, counterintuitive to radiative driving estimates. Also the mass-loss rates of theoretical Cepheid models are found to be up to $5\times 10^{-9}$ for Galactic Cepheids, $5\times 10^{-8}$ for Large Magellanic Cloud Cepheids, and $2\times 10^{-7}M_\odot /yr$ for Small Magellanic Cloud Cepheids. It is argued that mass loss increases as metallicity decreases for Cepheids with periods less than 20 days and that mass loss decreases for longer periods. Assuming dust forms in the wind of a Cepheid at some distance, the infrared excess of the models is computed, finding the infrared brightness is approximately a magnitude larger due to mass loss. The infrared magnitudes are compared to recently published Period-Luminosity relations as a test of our predictions.
description: 11 pages, 7 figures, prepared using emulateapj.cls, ApJ accepted
Magnetoconductance properties of rectangular arrays of spintronic quantum rings
Creators: name: Kalman, Orsolya
name: Foldi, Peter
name: Benedict, Mihaly G.
name: Peeters, Francois M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Electron transport through multi-terminal rectangular arrays of quantum rings is studied in the presence of Rashba-type spin-orbit interaction (SOI) and of a perpendicular magnetic field. Using the analytic expressions for the transmission and reflection coefficients for single rings we obtain the conductance through such arrays as a function of the SOI strength, the magnetic flux, and of the wave vector $k$ of the incident electron. Due to destructive or constructive spin interferences caused by the SOI, the array can be totally opaque for certain ranges of $k$, while there are parameter values where it is completely transparent. Spin resolved transmission probabilities show nontrivial spin transformations at the outputs of the arrays. When point-like random scattering centers are placed between the rings, the Aharonov-Bohm peaks split, and an oscillatory behavior of the conductance emerges as a function of the SOI strength.
description: 10 pages, 10 figures, submitted to PRB
Constraining the Scatter in the Mass-Richness Relation of maxBCG Clusters With Weak Lensing and X-ray Data
Creators: name: Rozo, Eduardo
name: Rykoff, Eli S.
name: Evrard, August
name: Becker, Matthew
name: McKay, Timothy
name: Wechsler, Risa H.
name: Koester, Benjamin P.
name: Hao, Jiangang
name: Hansen, Sarah
name: Sheldon, Erin
name: Johnston, David
name: Annis, James
name: Frieman, Joshua
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We measure the logarithmic scatter in mass at fixed richness for clusters in the maxBCG cluster catalog, an optically selected cluster sample drawn from SDSS imaging data. Our measurement is achieved by demanding consistency between available weak lensing and X-ray measurements of the maxBCG clusters, and the X-ray luminosity--mass relation inferred from the 400d X-ray cluster survey, a flux limited X-ray cluster survey. We find σ_{\ln M|N_{200}}=0.45^{+0.20}_{-0.18} (95% CL) at N_{200} ~ 40, where N_{200} is the number of red sequence galaxies in a cluster. As a byproduct of our analysis, we also obtain a constraint on the correlation coefficient between \ln Lx and \ln M at fixed richness, which is best expressed as a lower limit, r_{L,M|N} >= 0.85 (95% CL). This is the first observational constraint placed on a correlation coefficient involving two different cluster mass tracers. We use our results to produce a state of the art estimate of the halo mass function at z=0.23 -- the median redshift of the maxBCG cluster sample -- and find that it is consistent with the WMAP5 cosmology. Both the mass function data and its covariance matrix are presented.
description: 14 pages, 6 figures, submitted to ApJ
Additional file 1 of Effect of interventions to reduce malaria incidence among military personnel on active duty: study protocol for a cluster randomised controlled trial of the impact of etofenprox-treated uniforms, permethrin-treated uniforms and DEET insect repellent
Creators: name: Msellemu, Daniel
name: Ross, Amanda
name: Temu, Lucky
name: Moshi, Irene
name: Hofer, Lorenz
name: Mwanziva, Charles
name: Kohi, Yadon M.
name: Moore, Sarah J.
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology
subject: FOS: Biological sciences
subject: Computational Biology

description: Additional file 1:. Follow Up Questionnaire English
An overview of QML with a concrete implementation in Haskell
Creators: name: Grattage, Jonathan
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: Programming Languages (cs.PL)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: This paper gives an introduction to and overview of the functional quantum programming language QML. The syntax of this language is defined and explained, along with a new QML definition of the quantum teleport algorithm. The categorical operational semantics of QML is also briefly introduced, in the form of annotated quantum circuits. This definition leads to a denotational semantics, given in terms of superoperators. Finally, an implementation in Haskell of the semantics for QML is presented as a compiler. The compiler takes QML programs as input, which are parsed into a Haskell datatype. The output from the compiler is either a quantum circuit (operational), an isometry (pure denotational) or a superoperator (impure denotational). Orthogonality judgements and problems with coproducts in QML are also discussed.
description: 9 pages, final conference version (Quantum Physics and Logic 2008)
LA NOZIONE DI ‘FAMIGLIA LINGUISTICA ISLAMICA’ E LA SUA RILEVANZA PER LA DIDATTICA DELLA LINGUA ITALIANA L2 A DISCENTI DI ORIGINE AFGHANO-PAKISTANA
Creators: name: Salvaggio, Federico
Publisher: name: Italiano LinguaDue
Year: 2021

description: Il presente contributo prende in esame alcune caratteristiche del repertorio linguistico dei discenti di area afghano-pakistana alla luce di una particolare tipologia di Sprachbund su base culturale definita come ‘famiglia linguistica islamica’. A partire da tale criterio classificatorio sarà possibile evidenziare, tra le L1 del campione osservato (urdu, punjabi, pashto e dari), significative convergenze a livello lessico-semantico e grafico che intervengono nel determinare le strategie di interazione e intercomprensione linguistiche messe in atto dagli studenti all'interno del gruppo classe. The notion of ‘Islamic language family’ and its relevance for Italian L2 teaching to Afghan and Pakistani students The paper explores some features of Afghan and Pakistani students’ linguistic repertoire in the light of a particular cultural-based Sprachbund typology defined as ‘Islamic language family’. Building on this classificatory criterion the study highlights significant linguistic traits at the lexico-semantic and graphic levels, shared among students’ native languages (Urdu, Punjabi, Pashto, and Dari), in order to show their influence on students’ selection of specific linguistic interaction and intercomprehension strategies within the class group.
description: Italiano LinguaDue, V. 12 N. 2 (2020)
Looking for black-holes in X-ray binaries with XMM-Newton: XTE J1817-330 and XTE J1856+053
Creators: name: Sala, Gloria
name: Greiner, Jochen
name: Primak, Natalia
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The X-ray binary XTE J1817-330 was discovered in outburst on 26 January 2006 with RXTE/ASM. One year later, another X-ray transient discovered in 1996, XTE J1856+053, was detected by RXTE during a new outburst on 28 February 2007. We triggered XMM-Newton target of opportunity observations on these two objects to constrain their parameters and search for a stellar black holes. We summarize the properties of these two X-ray transients and show that the soft X-ray spectra indicate indeed the presence of an accreting stellar black hole in each of the two systems.
description: to appear in the proceedings of the Second Kolkata Conference on Observational Evidence for Black Holes in the Universe, Feb. 2008, Editor Sandip Chakrabarti, AIP
title: Climatic induced changes of radiological and chemical properties in an uranium tailing deposit – Equipment and first results -
Creators: name: Semar, Olivier
name: Schönhardt, Matthias
name: Witt, Karl Josef
Publisher: name: Bauhaus-Universität Weimar
Year: 2007
Subjects: subject: Monitoring
subject: Klimaänderung
subject: 620

description: Monitoring systems usually used to control tailings, primarily pore water pressure gages and observation wells, are not self evidently representative for mechanical considerations. Therefore an effective risk assessment and risk management is necessary to get additional information to determine indicators for critical situations. Several tailings observations showed an alteration in chemical and radiological parameters during rising saturation induced by climatic changes. These parameters are appropriate to stress indices. A systematically research on correlations between changes in stress indices and the phreatic surface is part of the research activities of the Bauhaus University in Weimar. The contribution presents the principle of this kind of monitoring, the soil mechanical background, details of the equipment and first results.
Deep learning for retrieval of the internuclear distance in a molecule from interference patterns in photoelectron momentum distributions
Creators: name: Shvetsov-Shilovski, N. I.
name: Lein, M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We use a convolutional neural network to retrieve the internuclear distance in the two-dimensional H$_2^{+}$ molecule ionized by a strong few-cycle laser pulse based on the photoelectron momentum distribution. We show that a neural network trained on a relatively small dataset consisting of a few thousand of images can predict the internuclear distance with an absolute error less than 0.1 a.u. We study the effect of focal averaging, and we find that the convolutional neural network trained using the focal averaged electron momentum distributions also shows a good performance in reconstructing the internuclear distance.
description: 15 pages, 3 figures
LINGUISTICA COGNITIVA NELLA CULTURA DEL BERE: METONIMIA SULLE ETICHETTE DEL VINO IN ITALIA E IN POLONIA
Creators: name: Kwapiszewska, Agnieszka
Publisher: name: Italiano LinguaDue
Year: 2021

description: La scelta dell’etichetta come oggetto del presente contributo è dovuta inannzitutto alla sua diffusione e alla sua accessibilità rispetto ad altri generi del discorso enologico. L’articolo studia la presenza delle metonimie intese come figure concettuali sulle etichette polacche e italiane. Si mettono a confronto due contesti culturali marcatamente diversi: l’Italia, uno dei primi paesi al mondo per produzione del vino, e la Polonia, il paese il cui settore enologico è ancora in via di sviluppo. Lo studio si propone di individuare i modelli cognitivi idealizzati (ing. Idealized Cognitive Models) in cui si realizzano le metonimie sulle etichette polacche e italiane mettendo in rilievo le differenze a livello quantitativo e qualitativo. Il quadro teorico-metodologico della ricerca si fonda sul contributo di Radden e Kövecses (1999) e di Seto (1999). Sone state prese in considerazione quattro varianti di metonimie: materiale per oggetto, oggetto per proprietà, causa per effetto e organo di percezione per percezione. Dall’analisi dei dati raccolti, la metonimia risulta essere un fenomeno più frequente nelle etichette polacche. Nel corpus italiano le metonimie più attestate sono quelle che operano entro un modello cognitivo idealizzato (ICM) di costituzione e un ICM di corpo umano. Nei testi polacchi invece le metonimie più ricorrenti appartengono a un ICM di proprietà e a un ICM di causalità. Cognitive linguistics in the culture of drinking: metonymy on wine labels in Italy and in Poland The choice of the wine label as the subject of this article is above all due to its popularity and accessibility comparing to other genres of wine discourse. The article studies the presence of metonymy as a conceptual figure on Polish and Italian wine labels. I compare two markedly different cultural contexts: Italy, one of the first countries in the world as far as wine production is concerned, and Poland, where the wine sector is still growing. The study aims to identify the idealized cognitive models (ICM) that give space to metonymies on Polish and Italian wine labels, indicating the differences in quantitative and qualitative terms. The theoretical-methodological framework of this research is based on the work of Radden e Kövecses (1999) and Seto (1999). I take into consideration four variants of metonymy: material for object, object for property, cause for effect and organ of perception for perception. Data analysis proves that metonymy is a more frequent phenomenon on Polish wine labels. In Italian corpus, metonymies with the highest number of attestations fall within Constitution ICM and Human Body ICM. In Polish texts metonymies that belong to Property ICM and Causation ICM prevail.
description: Italiano LinguaDue, V. 12 N. 2 (2020)
Mapping dusty star formation in and around a cluster at z=0.81 by wide-field imaging with AKARI
Creators: name: Koyama, Yusei
name: Kodama, Tadayuki
name: Shimasaku, Kazuhiro
name: Okamura, Sadanori
name: Tanaka, Masayuki
name: Lee, Hyung Mok
name: Im, Myunshin
name: Matsuhara, Hideo
name: Takagi, Toshinobu
name: Wada, Takehiko
name: Oyabu, Shinki
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present environmental dependence of dusty star forming activity in and around the cluster RXJ1716.4+6708 at z=0.81 based on wide-field and multi-wavelength observations with Suprime-Cam on the Subaru telescope and IRC onboard the AKARI satellite. Our optical data shows that the optical colour distribution of galaxies starts to dramatically change from blue to red at the medium-density environment such as cluster outskirts, groups and filaments. By combining with infrared data, we find that 15 micron galaxies tend to have optical colours between the red sequence and the blue cloud with a tail into the red sequence. The spatial distribution of the 15 micron galaxies over ~200 arcmin^2 around the cluster reveals that few 15 micron galaxies are detected in the cluster central region. This is probably due to the low star forming activity in the cluster core. However, interestingly, the fraction of 15 micron galaxies in the medium-density environments is as high as in the low-density field, despite the fact that the optical colours start to change in the medium-density environments. Furthermore, we find that 15 micron galaxies which have optically red colours (candidates for dusty red galaxies) and galaxies with high specific star formation rates are also concentrated in the medium-density environment. These results imply that the star forming activity in galaxies in groups and filaments is enhanced due to some environmental effects specific to the medium-density environment, and such a phenomenon is probably directly connected to the truncation of star forming activity in galaxies seen as the dramatic change in optical colours in such environments.
description: 15 pages, 14 figures, accepted for publication in MNRAS
Additional file 1 of Exploring socioeconomic inequities in access to palliative and end-of-life care in the UK: a narrative synthesis
Creators: name: French, Maddy
name: Keegan, Thomas
name: Anestis, Eleftherios
name: Preston, Nancy
Publisher: name: figshare
Year: 2021
Subjects: subject: Cell Biology
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1: Supplementary material 1. Stage 1 of a narrative synthesis (developing a theoretical understanding). Supplementary material 2. Medline search strategy. Supplementary material 3. Study eligibility. Supplementary material 4. Data extraction form. Supplementary material 5. Quality appraisal.
Do Katie and Connor tell better stories than Aaliyah and Jamaal? Teachers’ perceptions of children's oral narratives as a function of race and narrative quality
Creators: name: Ebright, Blake D.
name: De Marco, Allison
name: Gardner-Neblett, Nicole
Publisher: name: Elsevier
Year: 2023

description:
While seminal research suggests that White teachers are more likely to judge the oral narratives of Black children less favorably than stories told by White children, less attention has been paid to the role of narrative quality in the perceptions teachers form of these complex discourse skills. Further, few studies have examined the extent to which Black and White teachers differ in their perceptions of children's oral narrative skills. To address these gaps in the literature, the current study used mixed methods to investigate the role of narrative quality in Black and White teachers’ perceptions of children's oral narrative skills. We presented teachers with a higher-quality narrative and a lower-quality narrative as told by hypothetical children with stereotypical Black or White names. We asked teachers to rate the narratives along several indicators and share their impressions of the child storytellers. Results indicated that Black and White teachers rated Black and White children's narratives similarly for the higher-quality narratives, but differed in their ratings when the narratives were of lower quality. While there were similarities in the impressions Black and White teachers formed of the child storytellers, there were qualitative differences in how Black and White teachers described their impressions of the child storytellers, particularly for the lower-quality narratives. Given the importance of children's oral narrative skills for literacy development, the implications for instruction, professional development, and workforce diversity are discussed.
Quantum Turbulence
Creators: name: Tsubota, Makoto
Publisher: name: arXiv
Year: 2008
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The present article reviews the recent developments in the physics of quantum turbulence. Quantum turbulence (QT) was discovered in superfluid $^4$He in the 1950s, and the research has tended toward a new direction since the mid 90s. The similarities and differences between quantum and classical turbulence have become an important area of research. QT is comprised of quantized vortices that are definite topological defects, being expected to yield a model of turbulence that is much simpler than the classical model. The general introduction of the issue and a brief review on classical turbulence are followed by a description of the dynamics of quantized vortices. Then, we discuss the energy spectrum of QT at very low temperatures. At low wavenumbers, the energy is transferred through the Richardson cascade of quantized vortices, and the spectrum obeys the Kolmogorov law, which is the most important statistical law in turbulence; this classical region shows the similarity to conventional turbulence. At higher wavenumbers, the energy is transferred by the Kelvin-wave cascade on each vortex. This quantum regime depends strongly on the nature of each quantized vortex. The possible dissipation mechanism is discussed. Finally, important new experimental studies, which include investigations into temperature-dependent transition to QT, dissipation at very low temperatures, QT created by vibrating structures, and visualization of QT, are reviewed. The present article concludes with a brief look at QT in atomic Bose-Einstein condensates.
description: 13 pages, 5 figures, Review article to appear in J. Phys. Soc. Jpn
IL LESSICO DELLA MEDICINA. UN CONFRONTO ITALIANO-TEDESCO IN PROSPETTIVA DIDATTICO-TRADUTTIVA
Creators: name: Puato, Daniela
Publisher: name: Italiano LinguaDue
Year: 2021

description: Questo studio contrastivo analizza il lessico medico in italiano e in tedesco da un punto di vista teorico-sistematico e didattico. Esistono due tipi di tecnicismi: i tecnicismi specifici, per lo più formazioni neoclassiche con elementi greco-latini (chiamate anche internazionalismi) e i cosiddetti tecnicismi collaterali che hanno la mera funzione stilistica di innalzare il registro. Il presente articolo tratta il lessico medico nella prospettiva dell’insegnamento della traduzione specializzata a parlanti madrelingua tedeschi. The lexicon of medicine. An Italian-German comparison from a didactic-translating perspective In this contrastive study, medical vocabulary in Italian and German is analyzed from a systemic and didactic point of view. There are mainly two types of technical terms: proper terms, mostly neoclassical formations made up of Latin or Ancient Greek elements (also called internationalisms), and “collateral” terms which have only a stylistic function. This article deals with medical vocabulary from the perspective of teaching specialized translation to German native speakers.
description: Italiano LinguaDue, V. 12 N. 2 (2020)
PRAGMATISCHE FUNKTION(EN) EROTETISCHER SPRECHAKTE: EINE KONTRASTIVE ANALYSE ANHAND DER SERIE THE BIG BANG THEORY
Creators: name: Jakobs, Ramona
name: Ravetto, Miriam
Publisher: name: Italiano LinguaDue
Year: 2021

description: Il contributo intende proporre l’analisi pragmatica e contrastiva (tedesco-italiano) degli atti illocutivi erotetici, ossia delle domande, che spesso impongono al destinatario la formulazione di una risposta. Il corpus di riferimento è costituito da sette puntate della serie televisiva The Big Bang Theory, che sono esaminate in tedesco, in italiano e, laddove necessario, nella loro versione originale in lingua inglese. Lo studio si articola in una prima parte che offre una tassonomia degli atti linguistici, e più precisamente di quelli erotetici, e in una seconda parte in cui si propone un confronto tra l’uso e la formulazione delle domande nei dati tedeschi e in quelli italiani e un’analisi quantitativa dei tipi di atti erotetici attestati nel corpus. Pragmatic function(s) of erotetic speech acts: a contrastive analysis using the series the big bang theory The contribution proposes a pragmatic and contrastive (German-Italian) analysis of erotetic illocutive acts, i.e. questions that often require the recipient to formulate an answer. The reference corpus consists of seven episodes of the television series The Big Bang Theory, which are examined in German, Italian and, where necessary, in the original English version. The study is divided into a taxonomy of linguistic acts, and more precisely of erotetic acts, followed by a comparison between the use and formulation of questions in German and Italian and a quantitative analysis of the types of erotetic acts attested to in the corpus is proposed.
description: Italiano LinguaDue, V. 12 N. 2 (2020)
Instability of anisotropic cosmological solutions supported by vector fields
Creators: name: Himmetoglu, Burak
name: Contaldi, Carlo R.
name: Peloso, Marco
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Models with vector fields acquiring a non-vanishing vacuum expectation value along one spatial direction have been proposed to sustain a prolonged stage of anisotropic accelerated expansion. Such models have been used for realizations of early time inflation, with a possible relation to the large scale CMB anomalies, or of the late time dark energy. We show that, quite generally, the concrete realizations proposed so far are plagued by instabilities (either ghosts, or unstable growth of the linearized perturbations) which can be ultimately related to the longitudinal vector polarization present in them. Phenomenological results based on these models are therefore unreliable.
Meta-Reinforcement Learning Based Resource Allocation for Dynamic V2X Communications
Creators: name: Yuan, Yi
name: Zheng, Gan
name: Wong, Kai-Kit
name: Letaief, Khaled B.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: This paper studies the allocation of shared resources between vehicle-to-infrastructure (V2I) and vehicle-to-vehicle (V2V) links in vehicle-to-everything (V2X) communications. In existing algorithms, dynamic vehicular environments and quantization of continuous power become the bottlenecks for providing an effective and timely resource allocation policy. In this paper, we develop two algorithms to deal with these difficulties. First, we propose a deep reinforcement learning (DRL)-based resource allocation algorithm to improve the performance of both V2I and V2V links. Specifically, the algorithm uses deep Q-network (DQN) to solve the sub-band assignment and deep deterministic policy-gradient (DDPG) to solve the continuous power allocation problem. Second, we propose a meta-based DRL algorithm to enhance the fast adaptability of the resource allocation policy in the dynamic environment. Numerical results demonstrate that the proposed DRL-based algorithm can significantly improve the performance compared to the DQN-based algorithm that quantizes continuous power. In addition, the proposed meta-based DRL algorithm can achieve the required fast adaptation in the new environment with limited experiences.
description: Published in IEEE Transactions on Vehicular Technology, Sept. 2021
DIFFORMITÀ SINTATTICHE FRA ITALIANO E TEDESCO: TRADURRE L’ESPRESSIVITÀ DELL’AGGETTIVO ITALIANO PREPOSTO IN LINGUA TEDESCA
Creators: name: Ponzi, Maria Francesca
Publisher: name: Italiano LinguaDue
Year: 2021

description: Sulla base dell’analisi di un corpus contrastivo di 28 racconti tratti delle Cosmicomiche di Italo Calvino e della sua traduzione di Burkhart Kroeber il presente studio mette in luce la differenza sintattica fra l’italiano e il tedesco circa la posizione dell’aggettivo attributivo. Giacché in italiano quest’ultimo può essere preposto o posposto al sostantivo, mentre in tedesco esso è sempre preposto, ci si propone in questo lavoro di indagare le diverse possibili strategie traduttive del tedesco nella resa dell’espressività dell’aggettivo italiano, che assume un valore enfatico se preposto. Il presente studio propone una categorizzazione delle varie soluzioni traduttive di Kroeber supportata da un’analisi quantitativa e qualitativa. Una riflessione critico-teorica circa la tassonomia proposta indica la prospettiva pragmatica come la chiave interpretativa più adeguata per interpretare i diversi livelli linguistici – intonativo, morfologico, sintattico e semantico – sui quali si articolano le diverse scelte traduttive. The syntactic difference between Italian and German: translating the expressivity given by the position of the Italian adjective Based on the analysis of a contrastive corpus of 28 stories in Italo Calvino’s Cosmicomiche and the German translation by Burkhart Kroeber, this study focuses on the syntactic differences between Italian and German regarding the position of the attributive adjective. Given that in Italian the adjective can be put before or after the noun while into German it must be always placed before, this paper aims at investigating the different possible translation strategies in German which might reproduce the expressivity given by the position of the Italian adjective that takes on an emphatic function when placed before the noun. This paper proposes a categorization of Kroeber’s numerous translation solutions, supported by a qualitative and quantitative analysis. Theoretically and critically reflecting on the proposed taxonomy indicates the pragmatic perspective is the most appropriate in order to interpret the various linguistics levels – intonational, morphological, syntactic, semantic – on which the various translation solutions are structured.
description: Italiano LinguaDue, V. 12 N. 2 (2020)
Additional file 1 of Successful intergeneric transfer of a major apple scab resistance gene (Rvi6) from apple to pear and precise comparison of the downstream molecular mechanisms of this resistance in both species
Creators: name: Perchepied, L.
name: Chevreau, E.
name: Ravon, E.
name: Gaillard, S.
name: Pelletier, S.
name: Bahut, M.
name: Berthelot, P.
name: Cournol, R.
name: Schouten, H. J.
name: Vergne, E.
Publisher: name: figshare
Year: 2021
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: 60506 Virology

description: Additional File 1: Table S1. Scab qualitative note of nine transgenic pear lines and non-transgenic Conference inoculated with three V. pyrina strains. Percentage of plants in the different classes of symptoms, 42 days after inoculation. Table S4. Expression modulation of cell wall related DEGs detected at 8, 24 or 72 h post-inoculation during apple (GalaRvi6 / Gala) and pear (60 AU / Conference) responses to V. inaequalis and V. pyrina, respectively. In red: up-regulated DEGs, in blue: down-regulated DEGs
Behavior of Keyword Spotting Networks Under Noisy Conditions
Creators: name: Mohanty, Anwesh
name: Frischknecht, Adrian
name: Gerum, Christoph
name: Bringmann, Oliver
Publisher: name: arXiv
Year: 2021
Subjects: subject: Audio and Speech Processing (eess.AS)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Keyword spotting (KWS) is becoming a ubiquitous need with the advancement in artificial intelligence and smart devices. Recent work in this field have focused on several different architectures to achieve good results on datasets with low to moderate noise. However, the performance of these models deteriorates under high noise conditions as shown by our experiments. In our paper, we present an extensive comparison between state-of-the-art KWS networks under various noisy conditions. We also suggest adaptive batch normalization as a technique to improve the performance of the networks when the noise files are unknown during the training phase. The results of such high noise characterization enable future work in developing models that perform better in the aforementioned conditions.
description: 11 pages, 5 figures, Published in Lecture Notes in Computer Science book series (LNCS, volume 12891)
LA FUTURITÀ IN ITALIANO E IN TEDESCO: CONSIDERAZIONI TEORICO-CONTRASTIVE E PROSPETTIVE DIDATTICHE
Creators: name: Di Meola, Claudio
Publisher: name: Italiano LinguaDue
Year: 2021

description: Questo studio tratta l’espressione linguistica della futurità in italiano tramite i tempi verbali futuro semplice e presente. Un confronto con i rispettivi tempi verbali tedeschi sulla base di un ampio corpus contrastivo di attestazioni di lingua scritta e orale costituisce il fondamento per la formulazione di alcune proposte didattiche per discenti germanofoni di italiano lingua straniera. Futurity in Italian and German: theoretical-contrastive considerations and didactic perspectives This article deals with the linguistic expression of future events in Italian using the “future simple” and “present”. A contrastive Italian-German analysis, based on extensive written and oral corpora, constitutes the starting point for some didactic suggestions for German learners of Italian as a foreign language.
description: Italiano LinguaDue, V. 12 N. 2 (2020)
FRA CONGIUNTIVO E CONDIZIONALE: USI DISCORDANTI IN ITALIANO E IN FRANCESE
Creators: name: Corno, Stefano
Publisher: name: Italiano LinguaDue
Year: 2021

description: L’articolo parte da un’interrogazione sorta durante le lezioni di traduzione italiano-francese: si osservano in effetti molti casi in cui il condizionale francese viene tradotto in italiano con altri modi verbali, in particolare con il congiuntivo, oppure attraverso altre strategie. Il caso del condizionale francese tradotto con un congiuntivo italiano desta un certo interessa, dovuto al fatto che nel verbo latino il congiuntivo aveva un’estensione semantica che copriva anche l’area d’uso del condizionale. Quest’ultimo, infatti, è una creazione delle lingue romanze, ma evidentemente si è sviluppato diversamente nelle diverse lingue, come può testimoniare la divergenza negli usi in italiano e in francese. L’obiettivo dell’articolo è quindi di fornire vari esempi degli usi discordanti, nonché di indagare l’origine dell’uso di queste forme verbali nel passaggio dal latino alle lingue romanze. Between conditional and subjunctive: discordant uses in Italian and in French This paper poses a didactic problem, which came to light in Italian-French translation classes: in some cases, a conditional verb in French should be translated with the subjunctive in Italian. This is quite interesting, because in Latin the subjunctive had a wider semantic extension than in modern languages and it could also express the meaning of the “conditional”. The latter is a Romance innovation but, considering the differences that can be observed between Italian and French, it is obvious that semantic development is not the same in all Romance languages. The aim of this paper is to give some practical examples of the different uses in Italian and French and to inquire into the origin of this diversification in the development between Latin and both Romance languages.
description: Italiano LinguaDue, V. 12 N. 2 (2020)
Social Engineering in Cybersecurity: A Domain Ontology and Knowledge Graph Application Examples
Creators: name: Wang, Zuoguang
name: Zhu, Hongsong
name: Liu, Peipei
name: Sun, Limin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Social engineering has posed a serious threat to cyberspace security. To protect against social engineering attacks, a fundamental work is to know what constitutes social engineering. This paper first develops a domain ontology of social engineering in cybersecurity and conducts ontology evaluation by its knowledge graph application. The domain ontology defines 11 concepts of core entities that significantly constitute or affect social engineering domain, together with 22 kinds of relations describing how these entities related to each other. It provides a formal and explicit knowledge schema to understand, analyze, reuse and share domain knowledge of social engineering. Furthermore, this paper builds a knowledge graph based on 15 social engineering attack incidents and scenarios. 7 knowledge graph application examples (in 6 analysis patterns) demonstrate that the ontology together with knowledge graph is useful to 1) understand and analyze social engineering attack scenario and incident, 2) find the top ranked social engineering threat elements (e.g. the most exploited human vulnerabilities and most used attack mediums), 3) find potential social engineering threats to victims, 4) find potential targets for social engineering attackers, 5) find potential attack paths from specific attacker to specific target, and 6) analyze the same origin attacks.
The abundance of lensing protoclusters
Creators: name: D'Aloisio, Anson
name: Furlanetto, Steven R.
name: Natarajan, Priyamvada
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Weak gravitational lensing provides a potentially powerful method for the detection of clusters. In addition to cluster candidates, a large number of objects with possibly no optical or X-ray component have been detected in shear-selected samples. We develop an analytic model to investigate the claim of Weinberg & Kamionkowski (2002) that unvirialised protoclusters account for a significant number of these so-called "dark" lenses. In our model, a protocluster consists of a small virialised region surrounded by in-falling matter. We find that, in order for a protocluster to simultaneously escape X-ray detection and create a detectable weak lensing signal, it must have a small virial mass (~10^{13} \Msun) and large total mass (~ 10^{15} \Msun), with a relatively flat density profile outside of the virial radius. Such objects would be characterized by rising tangential shear profiles well beyond the virial radius. We use a semi-analytic approach based on the excursion set formalism to estimate the abundance of lensing protoclusters with a low probability of X-ray detection. We find that they are extremely rare, accounting for less than 0.4 per cent of the total lenses in a survey with background galaxy density n = 30 arcmin^{-2} and an intrinsic ellipticity dispersion of 0.3. We conclude that lensing protoclusters with undetectable X-Ray luminosities are too rare to account for a significant number of dark lenses.
description: 18 pages, 10 figures, version accepted by MNRAS (minor changes in response to referee)