cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A Kiloparsec-Scale Nuclear Stellar Disk in the Milky Way as a Possible Explanation of the High Velocity Peaks in the Galactic Bulge
Creators: name: Debattista, Victor P.
name: Ness, Melissa
name: Earp, Samuel W. F.
name: Cole, David R.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The Apache Point Observatory Galactic Evolution Experiment has measured the stellar velocities of red giant stars in the inner Milky Way. We confirm that the line of sight velocity distributions (LOSVDs) in the mid-plane exhibit a second peak at high velocities, whereas those at |b| = 2degrees do not. We use a high resolution simulation of a barred galaxy, which crucially includes gas and star formation, to guide our interpretation of the LOSVDs. We show that the data are fully consistent with the presence of a thin, rapidly rotating, nuclear disk extending to ~1 kpc. This nuclear disk is orientated perpendicular to the bar and is likely to be composed of stars on x2 orbits. The gas in the simulation is able to fall onto such orbits, leading to stars populating an orthogonal disk.
description: Published in ApJL, volume 812, L16. This version changes significantly to reflect other literature since the paper was submitted and the referee's comments. The fundamental result remains the same, that the presence of a 1 kpc nuclear disk in the Milky Way is able to explain the high velocity peaks seen by the APOGEE survey
Il punto sul mondo degli attori del Siglo de Oro
Creators: name: Ferrer Valls, Teresa
Publisher: name: Drammaturgia
Year: 2016

description: In Spain exists a rich documentary and bibliographic patrimony about the activities of players and acting companies in the Golden Century. This essay offers an update historiographic overview and highlights the progress allowed by the new technologies and by the publishing of databases containing relevant research tools concerning the stage practice.
description: Drammaturgia, Vol 12 No 2 (2015): Anno XII / n.s. 2 – 2015
Concentrations of Pro-Inflammatory Cytokines Are Not Associated with Senescence Marker p16INK4a or Predictive of Intracellular Emtricitabine/Tenofovir Metabolite and Endogenous Nucleotide Exposures in Adults with HIV Infection
Creators: name: Maas, Brian M.
name: Francis, Owen
name: Torrice, Chad
name: Prince, Heather M.A.
name: Malone, Stephanie
name: Trezza, Christine
name: Mollan, Katie R.
name: Sharpless, Norman E.
name: Lee, Cynthia
name: Sykes, Craig
name: Dumond, Julie B.
name: Cottrell, Mackenzie L.
name: Hudgens, Michael G.
name: White, Nicole
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: As the HIV-infected population ages, the role of cellular senescence and inflammation on co-morbid conditions and pharmacotherapy is increasingly of interest. p16INK4a expression, a marker for aging and senescence in T-cells, is associated with lower intracellular concentrations of endogenous nucleotides (EN) and nucleos(t)ide reverse transcriptase inhibitors (NRTIs). This study expands on these findings by determining whether inflammation is contributing to the association of p16INK4a expression with intracellular metabolite (IM) exposure and endogenous nucleotide concentrations.
Self-Similarly Corrected Pade Approximants for the Indeterminate Problem
Creators: name: Gluzman, Simon
name: Yukalov, Vyacheslav I.
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Mathematics (math.GM)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: A method is suggested for treating the well-known deficiency in the use of Pade approximants that are well suited for approximating rational functions, but confront problems in approximating irrational functions. We develop the approach of self-similarly corrected Pade approximants, making it possible to essentially increase the class of functions treated by these approximants. The method works well even in those cases, where the standard Pade approximants are not applicable, resulting in divergent sequences. Numerical convergence of our method is demonstrated by several physical examples.
description: Latex file, 33 pages, 18 figures
MultiLoad-GAN: A GAN-Based Synthetic Load Group Generation Method Considering Spatial-Temporal Correlations
Creators: name: Hu, Yi
name: Li, Yiyan
name: Song, Lidong
name: Lee, Han Pyo
name: Rehm, PJ
name: Makdad, Matthew
name: Miller, Edmond
name: Lu, Ning
Publisher: name: arXiv
Year: 2022
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This paper presents a deep-learning framework, Multi-load Generative Adversarial Network (MultiLoad-GAN), for generating a group of synthetic load profiles (SLPs) simultaneously. The main contribution of MultiLoad-GAN is the capture of spatial-temporal correlations among a group of loads that are served by the same distribution transformer. This enables the generation of a large amount of correlated SLPs required for microgrid and distribution system studies. The novelty and uniqueness of the MultiLoad-GAN framework are three-fold. First, to the best of our knowledge, this is the first method for generating a group of load profiles bearing realistic spatial-temporal correlations simultaneously. Second, two complementary realisticness metrics for evaluating generated load profiles are developed: computing statistics based on domain knowledge and comparing high-level features via a deep-learning classifier. Third, to tackle data scarcity, a novel iterative data augmentation mechanism is developed to generate training samples for enhancing the training of both the classifier and the MultiLoad-GAN model. Simulation results show that MultiLoad-GAN can generate more realistic load profiles than existing approaches, especially in group level characteristics. With little finetuning, MultiLoad-GAN can be readily extended to generate a group of load or PV profiles for a feeder or a service area.
description: in IEEE Transactions on Smart Grid
Le prime attrici della compagnia Reale Sarda nel database AMAtI
Creators: name: Simoncini, Francesca
Publisher: name: Drammaturgia
Year: 2016

description: The section is dedicated to the profiles of three important actresses active in the first half of the 19th century: Carlotta Marchionni (1796-1861), Amalia Bettini (1809-1894), Antonietta Robotti (1817-1864).
description: Drammaturgia, Vol 12 No 2 (2015): Anno XII / n.s. 2 – 2015
Amalia Bettini
Creators: name: Sarà, Daniela
Publisher: name: Drammaturgia
Year: 2016

description: ‘Amorosa’, then leading actress, the most appreciated and sought after actress of the 1830s. She had an intense and longstanding relationship with the poet Giuseppe Gioachino Belli. In the latter years of her career she performed in the Compagnia Reale Sarda (The Royal Sardinian Company).
description: Drammaturgia, Vol 12 No 2 (2015): Anno XII / n.s. 2 – 2015
Antonietta Robotti
Creators: name: Agostini, Emanuela
Publisher: name: Drammaturgia
Year: 2016

description: As one of the most important leading actresses of the 19th century, she performed in the Ducale di Parma Company (1839-1842) and for a whole decade (1842-1853) in the Compagnia Reale Sarda (The Royal Sardinian Company). After 1853 she founded and directed with her husband Luigi their own companies.
description: Drammaturgia, Vol 12 No 2 (2015): Anno XII / n.s. 2 – 2015
Sebastiano Ricci impresario in angustie a Venezia: i guai della stagione 1718-1719 al Sant’Angelo
Creators: name: Stefani, Gianluca
Publisher: name: Drammaturgia
Year: 2016

description: Sebastiano Ricci was not only one of the greatest painters of the 18th century, but an active impresario in the Venetian opera houses at the beginning of the early 18th century. Thanks to the rediscovery of some notarial and judicial documents in the Archivio di Stato of Venice, we can reconstruct the circumstances under which he became manager of the Teatro di Sant’Angelo in the season 1718-1719, a season marked by his succession to the previous impresario Antonio Moretti (known as Modotto) and by his legal dispute with the violinists Giovan Battista and Ludovico Madonis at the tribunal ‘del Forestier’.
description: Drammaturgia, Vol 12 No 2 (2015): Anno XII / n.s. 2 – 2015
VLBI Observations of a sample of Palomar-Green quasars I: parsec-scale morphology
Creators: name: Wang, Ailing
name: An, Tao
name: Cheng, Xiaopeng
name: Ho, Luis C.
name: Kellermann, Kenneth I.
name: Baan, Willem A.
name: Yang, Jun
name: Zhang, Yingkang
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We observed 20 Palomar-Green (PG) quasars at low redshift ($z<0.5$) with total flux density > 1 mJy, including 4 radio-loud quasars (RLQs) and 16 radio-quiet quasars (RQQs), using the Very Long Baseline Array (VLBA) at 5 GHz. Ten RQQs are clearly detected in the VLBA images, and a compact radio core is identified in eight of them, indicating the prevalence of active galactic nucleus (AGN)-related radio emission in this flux-density-limited RQQ sample. The RQQs and RLQs in our sample have a division at $\sim$30~mJy. The radio emission from RQQs appears to be the result of a combination of star formation and AGN-associated activities. All RQQs in our sample have a 5 GHz flux density ratio of Very Large Array (VLA) A-array to D-array $f_{\rm c} = S_{\rm A}^{\rm VLA}/S_{\rm D}^{\rm VLA}$ above 0.2. The RQQs with $f_a$ (VLBA and VLA flux density ratio $S^{\rm VLBA}/S_{\rm A}^{\rm VLA}) > 0.2$ versus $f_a < 0.2$ show significant differences in morphology, compactness and total flux density. $f_{\rm a}$ of RQQs is systematically lower than that of RLQs, probably due to the extended jets or relic jets of RQQs on 10s to 100s parsecs which are resolved out in VLBA images. Future larger samples, especially with the addition of milli-arcsec resolution radio images of RQQs with total flux densities below 1 mJy, can test the conclusions of this paper and contributes to the understanding of the radio emission mechanism of RQQs, and the dichotomy and physical connection between RQQs and RLQs.
description: This paper has been accepted by MNRAS
Simulating Hydrodynamics in Cosmology with CRK-HACC
Creators: name: Frontiere, Nicholas
name: Emberson, J. D.
name: Buehlmann, Michael
name: Adamo, Joseph
name: Habib, Salman
name: Heitmann, Katrin
name: Faucher-Giguère, Claude-André
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We introduce CRK-HACC, an extension of the Hardware/Hybrid Accelerated Cosmology Code (HACC), to resolve gas hydrodynamics in large-scale structure formation simulations of the universe. The new framework couples the HACC gravitational N-body solver with a modern smoothed particle hydrodynamics (SPH) approach called CRKSPH. $\underline{\text{C}}$onservative $\underline{\text{R}}$eproducing $\underline{\text{K}}$ernel $\underline{\text{SPH}}$ utilizes smoothing functions that exactly interpolate linear fields while manifestly preserving conservation laws (momentum, mass, and energy). The CRKSPH method has been incorporated to accurately model baryonic effects in cosmology simulations - an important addition targeting the generation of precise synthetic sky predictions for upcoming observational surveys. CRK-HACC inherits the codesign strategies of the HACC solver and is built to run on modern GPU-accelerated supercomputers. In this work, we summarize the primary solver components and present a number of standard validation tests to demonstrate code accuracy, including idealized hydrodynamic and cosmological setups, as well as self-similarity measurements.
Conserved Lysine Acetylation within the Microtubule-Binding Domain Regulates MAP2/Tau Family Members
Creators: name: Trzeciakiewicz, Hanna
name: Marmorstein, Ronen
name: Yuan, Chao-Xing
name: Cohen, Todd J.
name: Lee, Virginia M. Y.
name: Friedmann, Dave
name: Hwang, Andrew W.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: Lysine acetylation has emerged as a dominant post-translational modification (PTM) regulating tau proteins in Alzheimer’s disease (AD) and related tauopathies. Mass spectrometry studies indicate that tau acetylation sites cluster within the microtubule-binding region (MTBR), a region that is highly conserved among tau, MAP2, and MAP4 family members, implying that acetylation could represent a conserved regulatory mechanism for MAPs beyond tau. Here, we combined mass spectrometry, biochemical assays, and cell-based approaches to demonstrate that the tau family members MAP2 and MAP4 are also subject to reversible acetylation. We identify a cluster of lysines in the MAP2 and MAP4 MTBR that undergo CBP-catalyzed acetylation, many of which are conserved in tau. Similar to tau, MAP2 acetylation can occur in a cysteine-dependent auto-regulatory manner in the presence of acetyl-CoA. Furthermore, tubulin reduced MAP2 acetylation, suggesting tubulin binding dictates MAP acetylation status. Taken together, these results uncover a striking conservation of MAP2/Tau family post-translational modifications that could expand our understanding of the dynamic mechanisms regulating microtubules.
L’avventura del teatro granducale degli Uffizi (1586-1637)
Creators: name: Testaverde, Anna Maria
Publisher: name: Drammaturgia
Year: 2016

description: The essay reconstructs the chronological details of the construction and disposal of the Teatro degli Uffizi. An extensive unpublished documentation, and a newly discovered plan of the theatre in the Archivio di Stato di Modena, bring to light hitherto unknown persons and situations. The study anticipates reflections and proposals for a structural solution that would modify the model proposed in 1975 by Ludovico Zorzi. As a foundation of these new hypotheses, the essay offers a re-reading of the Vitruvius’s theories on which the florentine highly specialised technical skills were based on.
description: Drammaturgia, Vol 12 No 2 (2015): Anno XII / n.s. 2 – 2015
Recurrent Spectral Network (RSN): shaping the basin of attraction of a discrete map to reach automated classification
Creators: name: Chicchi, Lorenzo
name: Fanelli, Duccio
name: Giambagli, Lorenzo
name: Buffoni, Lorenzo
name: Carletti, Timoteo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Machine Learning (cs.LG)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: A novel strategy to automated classification is introduced which exploits a fully trained dynamical system to steer items belonging to different categories toward distinct asymptotic attractors. These latter are incorporated into the model by taking advantage of the spectral decomposition of the operator that rules the linear evolution across the processing network. Non-linear terms act for a transient and allow to disentangle the data supplied as initial condition to the discrete dynamical system, shaping the boundaries of different attractors. The network can be equipped with several memory kernels which can be sequentially activated for serial datasets handling. Our novel approach to classification, that we here term Recurrent Spectral Network (RSN), is successfully challenged against a simple test-bed model, created for illustrative purposes, as well as a standard dataset for image processing training.
Optimized quantum sensing with a single electron spin using real-time adaptive measurements
Creators: name: Bonato, Cristian
name: Blok, Machiel S.
name: Dinani, Hossein T.
name: Berry, Dominic W.
name: Markham, Matthew L.
name: Twitchen, Daniel J.
name: Hanson, Ronald
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Quantum sensors based on single solid-state spins promise a unique combination of sensitivity and spatial resolution. The key challenge in sensing is to achieve minimum estimation uncertainty within a given time and with a high dynamic range. Adaptive strategies have been proposed to achieve optimal performance but their implementation in solid-state systems has been hindered by the demanding experimental requirements. Here we realize adaptive d.c. sensing by combining single-shot readout of an electron spin in diamond with fast feedback. By adapting the spin readout basis in real time based on previous outcomes we demonstrate a sensitivity in Ramsey interferometry surpassing the standard measurement limit. Furthermore, we find by simulations and experiments that adaptive protocols offer a distinctive advantage over the best-known non-adaptive protocols when overhead and limited estimation time are taken into account. Using an optimized adaptive protocol we achieve a magnetic field sensitivity of $6.1 \pm 1.7$ nT *Hz$^{-1/2}$ over a wide range of 1.78 mT. These results open up a new class of experiments for solid-state sensors in which real-time knowledge of the measurement history is exploited to obtain optimal performance.
description: typos corrected
Empirical Constraints on the Nucleosynthesis of Nitrogen
Creators: name: Johnson, James W.
name: Weinberg, David H.
name: Vincenzo, Fiorenzo
name: Bird, Jonathan C.
name: Griffith, Emily J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We derive empirical constraints on the nucleosynthetic yields of nitrogen by incorporating N enrichment into our previously developed and empirically tuned multi-zone galactic chemical evolution model. We adopt a metallicity-independent ("primary") N yield from massive stars and a metallicity-dependent ("secondary") N yield from AGB stars. In our model, galactic radial zones do not evolve along the observed [N/O]-[O/H] relation, but first increase in [O/H] at roughly constant [N/O], then move upward in [N/O] via secondary N production. By $t\approx5$ Gyr, the model approaches an equilibrium [N/O]-[O/H] relation, which traces the radial oxygen gradient. We find good agreement with the [N/O]-[O/H] trend observed in extra-galactic systems if we adopt an IMF-averaged massive star yield $y_\text{N}^\text{CC}=3.6\times10^{-4}$, consistent with predictions for rapidly rotating progenitors, and a fractional AGB yield that is linear in mass and metallicity $y_\text{N}^\text{AGB}=(9\times10^{-4})(M_*/M_\odot)(Z_*/Z_\odot)$. This model reproduces the [N/O]-[O/H] relation found for Milky Way stars in the APOGEE survey, and it reproduces (though imperfectly) the trends of stellar [N/O] with age and [O/Fe]. The metallicity-dependent yield plays the dominant role in shaping the gas-phase [N/O]-[O/H] relation, but the AGB time-delay is required to match the APOGEE stellar age and [O/Fe] trends. If we add $\sim$40\% oscillations to the star formation rate, the model reproduces the scatter in gas-phase [N/O] vs. [O/H] observed in external galaxies by MaNGA. We also construct models using published AGB yields and examine their empirical successes and shortcomings. For all AGB yields we consider, simple stellar populations release half their N after only $\sim$250 Myr.
description: 21 pages, 10 figures. See Figs. 5, 6, and 9 for key results. Submitted to MNRAS
Sozialtraining für Kinder und Jugendliche mit Autismus-Spektrum-Störungen. Entwicklung eines Konzeptes für das unterrichtsbegleitende Training der HPS der Stadt Zürich
Creators: name: Wildi, Heidi
Publisher: name: Zenodo
Year: 2012
Subjects: Sonderpädagogik
Masterarbeit
Autismus-Spektrum-Störung
Kind
Jugendliche
Sozialtraining

description: Seit einem Jahr führt die Heilpädagogische Schule der Stadt Zürich ein Sozialtraining für Kinder und Jugendliche mit Autismus-Spektrum-Störungen durch. Die definitive Etablierung dieses Angebots in den Leistungsvereinbarungen der Heilpädagogischen Schule ist unumstritten. Dazu braucht es ein Konzept, welches Rollen klärt und die Durchführung des Sozialtrainings vereinfacht. In dieser Arbeit werden aufgrund von Interviews mit Eltern, dem Team, Lehrpersonen, Heilpädagogen und Heilpädagoginnen und mit der Schulleitung Anforderungen an ein solches Konzept erfasst. Daraus werden Empfehlungen formuliert, welche die Erstellung eines Konzeptes unterstützen.
title: Die Nutzenbewertung von nichtmedikamentösen Untersuchungs- und Behandlungsmethoden
title: Welche Tragweite hat die Regelung nach § 137h SGB V?
titleType: Subtitle
Creators: name: Ex, Patricia
name: Busse, Reinhard
name: Henschke, Cornelia
Publisher: name: Technische Universität Berlin
Year: 2016
Subjects: subject: 610 Medizin und Gesundheit
subject: 336 Öffentliche Finanzen
subject: nutzenbewertung Medizinprodukte
subject: Neue Untersuchungs- und Behandlungsmethoden
subject: Vergütung von Innovationen
subject: GKV-Leistungskatalog
subject: NUBs

description: Mit dem § 137h SGB V wurde erstmals eine Nutzenbewertung im stationären Sektor eingeführt. Bestimmte neue Untersuchungs- und Behandlungsmethoden (NUB), die maßgeblich auf der Anwendung eines Medizinproduktes mit hoher Risikoklasse beruhen, werden zukünftig einer Nutzenbewertung unterzogen. Dabei bestehen einige Einschränkungen und offene Punkte in der Regelung, die es zu diskutieren gilt. Ziel dieses Beitrages ist, die Neuregelung im gesundheitspolitischen und Gesundheitswissenschaftlichen Kontext darzustellen und ihre Tragweite für das deutsche Gesundheitssystem zu diskutieren.
Decoding the Regulatory Landscape of Ageing in Musculoskeletal Engineered Tissues Using Genome-Wide DNA Methylation and RNASeq
Creators: name: Collins, John
name: Proctor, Carole
name: Fang, Yongxiang
name: Clegg, Peter David
name: Peffers, Mandy Jayne
name: Loughlin, John
name: Goljanek-Whysall, Katarzyna
name: Rushton, Michael
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: Mesenchymal stem cells (MSC) are capable of multipotent differentiation into connective tissues and as such are an attractive source for autologous cell-based regenerative medicine and tissue engineering. Epigenetic mechanisms, like DNA methylation, contribute to the changes in gene expression in ageing. However there was a lack of sufficient knowledge of the role that differential methylation plays during chondrogenic, osteogenic and tenogenic differentiation from ageing MSCs. This study undertook genome level determination of the effects of DNA methylation on expression in engineered tissues from chronologically aged MSCs. We compiled unique DNA methylation signatures from chondrogenic, osteogenic, and tenogenic engineered tissues derived from young; n = 4 (21.8 years ± 2.4 SD) and old; n = 4 (65.5 years±8.3SD) human MSCs donors using the Illumina HumanMethylation 450 Beadchip arrays and compared these to gene expression by RNA sequencing. Unique and common signatures of global DNA methylation were identified. There were 201, 67 and 32 chondrogenic, osteogenic and tenogenic age-related DE protein-coding genes respectively. Findings inferred the nature of the transcript networks was predominantly for ‘cell death and survival’, ‘cell morphology’, and ‘cell growth and proliferation’. Further studies are required to validate if this gene expression effect translates to cell events. Alternative splicing (AS) was dysregulated in ageing with 119, 21 and 9 differential splicing events identified in chondrogenic, osteogenic and tenogenic respectively, and enrichment in genes associated principally with metabolic processes. Gene ontology analysis of differentially methylated loci indicated age-related enrichment for all engineered tissue types in ‘skeletal system morphogenesis’, ‘regulation of cell proliferation’ and ‘regulation of transcription’ suggesting that dynamic epigenetic modifications may occur in genes associated with shared and distinct pathways dependent upon engineered tissue type. An altered phenotype in engineered tissues was observed with ageing at numerous levels. These changes represent novel insights into the ageing process, with implications for stem cell therapies in older patients. In addition we have identified a number of tissue-dependant pathways, which warrant further studies.
Method to preserve the chiral-symmetry protection of the zeroth Landau level on a two-dimensional lattice
Creators: name: Vela, A. Donís
name: Lemut, G.
name: Tworzydło, J.
name: Beenakker, C. W. J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The spectrum of massless Dirac fermions on the surface of a topological insulator in a perpendicular magnetic field $B$ contains a $B$-independent "zeroth Landau level", protected by chiral symmetry. If the Dirac equation is discretized on a lattice by the method of "Wilson fermions", the chiral symmetry is broken and the zeroth Landau level is broadened when $B$ has spatial fluctuations. We show how this lattice artefact can be avoided starting from an alternative nonlocal discretization scheme introduced by Stacey. A key step is to spatially separate the states of opposite chirality in the zeroth Landau level, by adjoining $+B$ and $-B$ regions.
description: Contribution to a special issue of Annals of Physics in memory of Kostya Efetov
Discovering Quantum Phase Transitions with Fermionic Neural Networks
Creators: name: Cassella, G.
name: Sutterud, H.
name: Azadi, S.
name: Drummond, N. D.
name: Pfau, D.
name: Spencer, J. S.
name: Foulkes, W. M. C.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Machine Learning (cs.LG)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Deep neural networks have been extremely successful as highly accurate wave function ansätze for variational Monte Carlo calculations of molecular ground states. We present an extension of one such ansatz, FermiNet, to calculations of the ground states of periodic Hamiltonians, and study the homogeneous electron gas. FermiNet calculations of the ground-state energies of small electron gas systems are in excellent agreement with previous initiator full configuration interaction quantum Monte Carlo and diffusion Monte Carlo calculations. We investigate the spin-polarized homogeneous electron gas and demonstrate that the same neural network architecture is capable of accurately representing both the delocalized Fermi liquid state and the localized Wigner crystal state. The network is given no \emph{a priori} knowledge that a phase transition exists, but converges on the translationally invariant ground state at high density and spontaneously breaks the symmetry to produce the crystalline ground state at low density.
description: 12 pages, 3 figures
Dirac sea effects on Heavy Quarkonia decay widths in magnetized matter -- a field theoretic model of composite hadrons
Creators: name: Mishra, Amruta
name: Misra, S. P.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the partial decay widths of charmonium (bottomonium) states to ${\rm D\bar D \; (B\bar B)}$ mesons in magnetized (nuclear) matter using a field theoretical model of composite hadrons with quark (and antiquark) constituents. These are computed from the mass modifications of the decaying and produced mesons within a chiral effective model, including the nucleon Dirac sea effects. The mass modifications of the open charm (bottom) mesons are calculated from their interactions with the nucleons and the scalar mesons, whereas the mass shift of the heavy quarkonium state is obtained from the medium change of a scalar dilaton field, $χ$, which mimics the gluon condensates of QCD. The Dirac sea contributions are observed to lead to a rise (drop) in the quark condensates as the magnetic field is increased, an effect called the (inverse) magnetic catalysis. These effects are observed to be significant and the anomalous magnetic moments (AMMs) of the nucleons are observed to play an important role. For $ρ_B$=0, there is observed to be magnetic catalysis (MC) without and with AMMs, whereas, for $ρ_B=ρ_0$, the inverse magnetic catalysis (IMC) is observed when the AMMs are taken into account, contrary to MC, when the AMMs are ignored. In the presence of a magnetic field, there are also mixings of spin 0 (pseudoscalar) and spin 1 (vector) states (PV mixing) which modify the masses of these mesons. The magnetic field effects on the heavy quarkonium decay widths should have observable consequences on the production the heavy flavour mesons, which are created in the early stage of ultra-relativistic peripheral heavy ion collisions, at RHIC and LHC, when the produced magnetic fields can still be extremely large.
description: 42 pages, 7 figures, version published in Phys. Rev. D 107 (2023) 074003
Defining the Active Fraction of Daptomycin against Methicillin-Resistant Staphylococcus aureus (MRSA) Using a Pharmacokinetic and Pharmacodynamic Approach
Creators: name: Tsuji, Brian T.
name: Bulitta, Jürgen B.
name: Garonzik, Samira M.
name: Lenhard, Justin R.
name: Holden, Patricia N.
name: Forrest, Alan
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: Our objective was to study the pharmacodynamics of daptomycin in the presence of varying concentrations of human serum (HS) in vitro to quantify the fraction of daptomycin that is ‘active’. Time kill experiments were performed with daptomycin (0 to 256 mg/L) against two MRSA strains at log-phase growth, in the presence of HS (0%, 10%, 30%, 50%, 70%) combined with Mueller-Hinton broth. Daptomycin ≥ 2 mg/L achieved 99.9% kill within 8 h at all HS concentrations; early killing activity was slightly attenuated at higher HS concentrations. After 1 h, bacterial reduction of USA300 upon exposure to daptomycin 4 mg/L ranged from -3.1 to -0.5 log10CFU/mL in the presence of 0% to 70% HS, respectively. Bactericidal activity was achieved against both strains at daptomycin ≥ 4 mg/L for all fractions of HS exposure. A mechanism-based mathematical model (MBM) was developed to estimate the active daptomycin fraction at each %HS, comprising 3 bacterial subpopulations differing in daptomycin susceptibility. Time-kill data were fit with this MBM with excellent precision (r2 >0.95). The active fraction of daptomycin was estimated to range from 34.6% to 25.2% at HS fractions of 10% to 70%, respectively. Despite the reported low unbound fraction of daptomycin, the impact of protein binding on the activity of daptomycin was modest. The active fraction approach can be utilized to design in vitro experiments and to optimize therapeutic regimens of daptomycin in humans.
Anna di Danimarca e i ‘Queen’s Masques’ (1604-1611)
Creators: name: Pagnini, Caterina
Publisher: name: Drammaturgia
Year: 2016

description: This essay offers a preliminary portrait of Anna of Denmark, queen of Scotland from 1589 for her marriage with James VI and queen of England, Scotland and Ireland for her husband’s accession to the throne as James I in 1603. Unjustly described by the anti-jacobean storiography as a vague character, changeable and superficial, extremely frivolous because of her interest in the court revels, Anna was instead an emblematic and eclectic personality, both in politics and cultural activity, expecially for her patronage of arts, artists and spectacle. Patron of painters, musicians and actors, connoisseurs of the Italian Renaissance architecture, Anna was the effective promoter of the english court spectacle, creating a series of yearly events which, from 1604 to 1611, signed the ultimate codification of the English masque.
description: Drammaturgia, Vol 12 No 2 (2015): Anno XII / n.s. 2 – 2015
CardsVR: A Two-Person VR Experience with Passive Haptic Feedback from a Deck of Playing Cards
Creators: name: Huard, Andrew
name: Chen, Mengyu
name: Sra, Misha
Publisher: name: arXiv
Year: 2022
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: Presence in virtual reality (VR) is meaningful for remotely connecting with others and facilitating social interactions despite great distance while providing a sense of "being there." This work presents CardsVR, a two-person VR experience that allows remote participants to play a game of cards together. An entire deck of tracked cards are used to recreate the sense of playing cards in-person. Prior work in VR commonly provides passive haptic feedback either through a single object or through static objects in the environment. CardsVR is novel in providing passive haptic feedback through multiple cards that are individually tracked and represented in the virtual environment. Participants interact with the physical cards by picking them up, holding them, playing them, or moving them on the physical table. Our participant study (N=23) shows that passive haptic feedback provides significant improvement in three standard measures of presence: Possibility to Act, Realism, and Haptics.
Le regie goldoniane di Renato Simoni (1936-1947)
Creators: name: Gjata, Adela
Publisher: name: Drammaturgia
Year: 2016

description: The study aims to reconstruct Renato Simoni’s stage directing investigated through the analysis of the outdoor Goldonian performances set up for the Festival of Venice in the years 1936-1947. These exceptional events employed top level dramatic artists. Simoni was one of the first directors who responsibly exercises his professional function, a profession that struggled to settle in the national theater system. His directing, built on an idea centred on the text, according to Silvio d’Amico’s teaching, is based on a very accurate playwriting, that aims to revalue the Italian drama in its best acting tradition. Simoni never reached a tradition-breaking linguistic innovation, but achieved the connection between the word and the image, that will be a cornerstone of the critical stage directing after World War II.
description: Drammaturgia, Vol 12 No 2 (2015): Anno XII / n.s. 2 – 2015
COMPACT MODULAR DRYER
Creators: name: Petrash, Oleksandr
name: Popov, Stanislav
name: Popovych, Nataliia
name: Petrash, Ruslan
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 401907
subject: Petroleum and reservoir engineering

description: The method of ensuring gas quality considered in the current paper involves the use of a block-type gas drying installation as part of a low-temperature separation installation and a source of artificial cold. As the latter, it is envisaged to use a freon-refrigerating unit. The study shows that the proposed block gas drying units can be unified for different gas productivity and are characterized by relatively low capital and operating costs. The main advantages of the introduction of gas preparation block installations and the scheme of connecting the installation to the existing line are presented. Based on the results of the economic efficiency indicators, it was established that the use of a block gas drying unit is a profitable project with the value of the accumulated reduced free cash flow of almost 843 thousand USD.
Investigating the nature of light scalar mesons with semileptonic decays of D mesons
Creators: name: Sekihara, Takayasu
name: Oset, Eulogio
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the semileptonic decays of $D_{s}^{+}$, $D^{+}$, and $D^{0}$ mesons into the light scalar mesons [$f_{0} (500)$, $K_{0}^{\ast} (800)$, $f_{0} (980)$, and $a_{0}(980)$] and the light vector mesons [$ρ(770)$, $ω(782)$, $K^{\ast} (892)$, and $ϕ(1020)$]. With the help of a chiral unitarity approach in coupled channels, we compute the branching fractions for scalar meson processes of the semileptonic $D$ decays in a simple way. Using current known values of the branching fractions, we make predictions for the branching fractions of the semileptonic decay modes with other scalar and vector mesons. Furthermore, we calculate the $π^{+} π^{-}$, $πη$, $πK$, and $K^{+} K^{-}$ invariant mass distributions in the semileptonic decays of $D$ mesons, which will help us clarify the nature of the light scalar mesons.
description: 17 pages, 11 eps figures, version accepted for publication in PRD, several references added
Depression, Stressful Life Events, and the Impact of Variation in the Serotonin Transporter: Findings from the National Longitudinal Study of Adolescent to Adult Health (Add Health)
Creators: name: Williams, Redford B.
name: Harris, Kathleen Mullan
name: Halpern, Carolyn T.
name: Brummett, Beverly H.
name: Siegler, Ilene C.
name: Haberstick, Brett C.
name: Hewitt, John K.
name: Killeya-Jones, Ley A.
name: Wagner, Brandon
name: Boardman, Jason D.
name: Smolen, Andrew
name: Hopfer, Christian J.
name: Tabor, Joyce
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: BackgroundThe low transcriptionally efficient short-allele of the 5HTTLPR serotonin transporter polymorphism has been implicated to moderate the relationship between the experience of stressful life events (SLEs) and depression. Despite numerous attempts at replicating this observation, results remain inconclusive.MethodsWe examined this relationship in young-adult Non-Hispanic white males and females between the ages of 22 and 26 (n = 4724) participating in the National Longitudinal Study of Adolescent to Adult Health (Add Health) with follow-up information every six years since 1995.ResultsLinear and logistic regression models, corrected for multiple testing, indicated that carriers of one or more of the S-alleles were more sensitive to stress than those with two L-alleles and at a higher risk for depression. This relationship behaved in a dose-response manner such that the risk for depression was greatest among those who reported experiencing higher numbers of SLEs. In post-hoc analyses we were not able to replicate an interaction effect for suicide ideation but did find suggestive evidence that the effects of SLEs and 5HTTLPR on suicide ideation differed for males and females. There were no effects of childhood maltreatment.DiscussionOur results provide partial support for the original hypothesis that 5-HTTLPR genotype interacts with the experience of stressful life events in the etiology of depression during young adulthood. However, even with this large sample, and a carefully constructed a priori analysis plan, the results were still not definitive. For the purposes of replication, characterizing the 5HTTLPR in other large data sets with extensive environmental and depression measures is needed.
Discrete Boltzmann modeling of detonation: based on the Shakhov model
Creators: name: Shan, Yiming
name: Xu, Aiguo
name: Zhang, Yudong
name: Wang, Lifeng
name: Chen, Feng
Publisher: name: arXiv
Year: 2022
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: A Discrete Boltzmann Model(DBM) based on the Shakhov model for detonation is proposed. Compared with the DBM based on the Bhatnagar-Gross-Krook (BGK) model, the current model has a flexible Prandtl numbers and consequently can be applied to a much wider range of detonation phenomena. Besides the Hydrodynamic Non-Equilibrium (HNE) behaviors usually investigated by the Navier-Stokes model, the most relevant Thermodynamic Non-Equilibrium (TNE) effects can be probed by the current model. The model is validated by some well-known benchmarks,and some steady and unsteady detonation processes are investigated. As for the von Neumann peak relative to the wave front, it is found that (i) (within the range of numerical experiments) the peak heights of pressure, density and flow velocity increase exponentially with the Prandtl number, the maximum stress increases parabolically with the Prandtl number, and the maximum heat flux decreases exponentially with the Prandtl number; (ii) the peak heights of pressure, density, temperature and flow velocity and the maximum stress within the peak are parabolically increase with the Mach number, the maximum heat flux decreases exponentially with the Mach number.
Bounded nonlinear forecasts of partially observed geophysical systems with physics-constrained deep learning
Creators: name: Ouala, Said
name: Brunton, Steven L.
name: Pascual, Ananda
name: Chapron, Bertrand
name: Collard, Fabrice
name: Gaultier, Lucile
name: Fablet, Ronan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: Dynamical Systems (math.DS)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: The complexity of real-world geophysical systems is often compounded by the fact that the observed measurements depend on hidden variables. These latent variables include unresolved small scales and/or rapidly evolving processes, partially observed couplings, or forcings in coupled systems. This is the case in ocean-atmosphere dynamics, for which unknown interior dynamics can affect surface observations. The identification of computationally-relevant representations of such partially-observed and highly nonlinear systems is thus challenging and often limited to short-term forecast applications. Here, we investigate the physics-constrained learning of implicit dynamical embeddings, leveraging neural ordinary differential equation (NODE) representations. A key objective is to constrain their boundedness, which promotes the generalization of the learned dynamics to arbitrary initial condition. The proposed architecture is implemented within a deep learning framework, and its relevance is demonstrated with respect to state-of-the-art schemes for different case-studies representative of geophysical dynamics.
Diagnostic Criteria for Problematic Internet Use among U.S. University Students: A Mixed-Methods Evaluation
Creators: name: O'Brien, Jennifer E.
name: Snyder, Susan M.
name: Howard, Matthew O.
name: Li, Wen
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: Empirical studies have identified increasing rates of problematic Internet use worldwide and a host of related negative consequences. However, researchers disagree as to whether problematic Internet use is a subtype of behavioral addiction. Thus, there are not yet widely accepted and validated diagnostic criteria for problematic Internet use. To address this gap, we used mixed-methods to examine the extent to which signs and symptoms of problematic Internet use mirror DSM-5 diagnostic criteria for substance use disorder, gambling disorder, and Internet gaming disorder. A total of 27 university students, who self-identified as intensive Internet users and who reported Internet-use-associated health and/or psychosocial problems were recruited. Students completed two measures that assess problematic Internet use (Young’s Diagnostic Questionnaire and the Compulsive Internet Use Scale) and participated in focus groups exploring their experiences with problematic Internet use. Results of standardized measures and focus group discussions indicated substantial overlap between students’ experiences of problematic Internet use and the signs and symptoms reflected in the DSM-5 criteria for substance use disorder, gambling disorder, and Internet gaming disorder. These signs and symptoms included: a) use Internet longer than intended, b) preoccupation with the Internet, c) withdrawal symptoms when unable to access the Internet, d) unsuccessful attempts to stop or reduce Internet use, e) craving, f) loss of interest in hobbies or activities other than the Internet, g) excessive Internet use despite the knowledge of related problems, g) use of the Internet to escape or relieve a negative mood, and h) lying about Internet use. Tolerance, withdrawal symptoms, and recurrent Internet use in hazardous situations were uniquely manifested in the context of problematic Internet use. Implications for research and practice are discussed.
Harvesting Entities from the Web Using Unique Identifiers -- IBEX
Creators: name: Talaika, Aliaksandr
name: Biega, Joanna
name: Amarilli, Antoine
name: Suchanek, Fabian M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Databases (cs.DB)
subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: In this paper we study the prevalence of unique entity identifiers on the Web. These are, e.g., ISBNs (for books), GTINs (for commercial products), DOIs (for documents), email addresses, and others. We show how these identifiers can be harvested systematically from Web pages, and how they can be associated with human-readable names for the entities at large scale. Starting with a simple extraction of identifiers and names from Web pages, we show how we can use the properties of unique identifiers to filter out noise and clean up the extraction result on the entire corpus. The end result is a database of millions of uniquely identified entities of different types, with an accuracy of 73--96% and a very high coverage compared to existing knowledge bases. We use this database to compute novel statistics on the presence of products, people, and other entities on the Web.
description: 30 pages, 5 figures, 9 tables. Complete technical report for A. Talaika, J. A. Biega, A. Amarilli, and F. M. Suchanek. IBEX: Harvesting Entities from the Web Using Unique Identifiers. WebDB workshop, 2015
Local recovery of a piecewise constant anisotropic conductivity in EIT on domains with exposed corners
Creators: name: de Hoop, Maarten V.
name: Furuya, Takashi
name: Lin, Ching-Lung
name: Nakamura, Gen
name: Vashisth, Manmohan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35R30, 35J25

description: We study the local recovery of an unknown piecewise constant anisotropic conductivity in EIT (electric impedance tomography) on certain bounded Lipschitz domains $Ω$ in $\mathbb{R}^2$ with corners. The measurement is conducted on a connected open subset of the boundary $\partialΩ$ of $Ω$ containing corners and is given as a localized Neumann-to-Dirichlet map. The above unknown conductivity is defined via a decomposition of $Ω$ into polygonal cells. Specifically, we consider a parallelogram-based decomposition and a trapezoid-based decomposition. We assume that the decomposition is known, but the conductivity on each cell is unknown. We prove that the local recovery is almost surely true near a known piecewise constant anisotropic conductivity $γ_0$. We do so by proving that the injectivity of the Fréchet derivative $F'(γ_0)$ of the forward map $F$, say, at $γ_0$ is almost surely true. The proof presented, here, involves defining different classes of decompositions for $γ_0$ and a perturbation or contrast $H$ in a proper way so that we can find in the interior of a cell for $γ_0$ exposed single or double corners of a cell of $\mbox{supp}H$ for the former decomposition and latter decomposition, respectively. Then, by adapting the usual proof near such corners, we establish the aforementioned injectivity.
description: 29 pages, 13 figures