cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Semi-insulating 4H-SiC lateral bulk acoustic wave resonators
Creators: name: Jiang, Boyang
name: Opondo, Noah F.
name: Bhave, Sunil A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Silicon carbide (SiC) excels in its outstanding mechanical properties, which are widely studied in Microelectromechanical systems (MEMS). Recently, the mechanical tuning of color centers in 4H-SiC has been demonstrated, broadening its application in quantum spintronics. The strain generated in a mechanical resonator can be used to manipulate the quantum state of the color center qubit. This work reports a lateral overtone mechanical resonator fabricated from a semi-insulating (SI) bulk 4H-SiC wafer. An aluminum nitride (AlN) piezoelectric transducer on SiC is used to drive the resonance. The resonator shows a series of modes with quality factors (Q) above 3000. An acoustic reflector positioned at the anchor shows a 22% improvement in the Q at 300 MHz resonance and suppresses the overtone modes away from it. This monolithic SiC resonator allows optical access to the SiC color centers from both sides of the wafer, enabling convenient setup in quantum measurements.
description: 4 pages 5 figures
TAPHONOMIC TOOLS TO EVALUATE SEDIMENTATION RATES AND STRATIGRAPHIC COMPLETENESS IN ROSSO AMMONITICO FACIES (EPIOCEANIC TETHYAN JURASSIC)
Creators: name: E. CARACUEL, JESÚS
name: MONACO, PAOLO
name: OLÓRIZ, FEDERICO
Publisher: name: Università degli Studi di Milano
Year: 2000

description: A combined multidisciplinary approach has been applied to calculate minimum values of the stratigraphic completeness and, secondarily, sedimentation rates in 9.2 m thick Rosso Ammonitico facies from central Apennines (Italy) and 11 m thick deposits of the same facies in Southern Spain. Middle - Upper Toarcian expanded sedimentation in Valdorbia section (Umbria-Marche Apennines) and extremely condensed Oxfordian-Tithonian sedimentation at Puerto Escaño section (External Subbetic) have been investigated using combined taphonomic, ichnologic and sedimentologic data and analyses. At Valdorbia, infaunal tiering is largely preserved and 27 horizons of infaunal-tiering truncation and casting reveal strong erosional activity forced by tempestite/turbidite events. Therefore, microstratigraphic gaps could be evaluated without biostratigraphic control. In this expanded section, 13 horizons of firm- and hardgrounds have been recorded showing simple or gradational tiering. Conversely, in the condensed Puerto Escaño section, taphonomic analysis reveals 25 horizons of bioclasts truncation (mainly in ammonites), and 56 horizons of firm-hardgrounds intensively bioturbated. In Valdorbia rather than in Puerto Escaño section, the evaluation of flattening in burrows and spherical bioclasts reveal a measurable mechanical compaction and dissolution. In addition, Rosso Ammonitico at Valdorbia section favoured the calculation of decompaction coefficients (nd) for each lithology easier than in Puerto Escaño section. In condensed and essentially hiatal Rosso Ammonitico, mottled deposits due to intense bioturbation dominate and tiering cannot be recognizable. This fact is accentuated by usual overprinting of elementary depositional events, which in turn hampered the accurate calculation of missing deposits. Therefore, in condensed Rosso Ammonitico the latter was only available in terms of minimal missing-record trough the analysis of truncated bioclasts.
description: Rivista italiana di Paleontologia e Stratigrafia, Vol 106, No 3
INDUSTRIAL X-RAY COMPUTED TOMOGRAPHY APLIED TO PALEOBOTANICAL RESEARCH
Creators: name: PIK-BIOLZI, MILENA
name: A. HOCHULI, PETER
name: FLISCH, ALEXANDER
Publisher: name: Università degli Studi di Milano
Year: 2000

description: X-ray computed tomography (CT) is a relatively new technology which has been used as a powerful research tool mainly by vertebrate palaeontologists. CT allows scientists to visualise internal features of fossils and rocks non destructively, just as medical scanners di for the human body. High-resolution industrial scanners provide cross sections of fossils at a resolution of 20 microns or less. We present the application of CT to two paleobotanical specimens: a petrified trunk of a Cycadeoidea from the Late Jurassic of England and a silicified cone Araucaria mirabilis from the Jurassic Cerro Cuadraro Petrified Forest in Patagonia, Argentina. In the three longitudinal and four cross-sections of the Cycadeoidea trunk, a multitude of internal structures could be observed, including pith, xylem, cortex, vascular bundles, floral cones and leaf bases. In central longitudinal and median transverse sections, the perfectly preserved cone Araucaria mirabilis pith, xylem, vascular bundles, seeds and ovuliferous scales are clearly visible. In order to test the resolution of the CT a second, less complete, but similarly well preserved specimen of A. mirabilis has been cut and sliced for a thin section.
description: Rivista italiana di Paleontologia e Stratigrafia, Vol 106, No 3
Induced Mutation in Musa spp.Genomes AAA Using Acute Gamma Ray and Determination with HAT-RAPD Markers
Creators: name: Sirinya Kashima
Publisher: name: Thammasat University
Year: 2020
Subjects: Musa genus
gamma radiation
mutation
HAT-RAPD marker

description: Thai Journal of Science and Technology, 9, 5, 668-679
Simulation of Claylike Colloids
Creators: name: Hecht, Martin
name: Harting, Jens
name: Ihle, Thomas
name: Herrmann, Hans J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We investigate properties of dense suspensions and sediments of small spherical silt particles by means of a combined Molecular Dynamics (MD) and Stochastic Rotation Dynamics (SRD) simulation. We include van der Waals and effective electrostatic interactions between the colloidal particles, as well as Brownian motion and hydrodynamic interactions which are calculated in the SRD-part. We present the simulation technique and first results. We have measured velocity distributions, diffusion coefficients, sedimentation velocity, spatial correlation functions and we have explored the phase diagram depending on the parameters of the potentials and on the volume fraction.
description: 20 pages, 14 figures
Transcription of Water Dog and Acorn Worm
Creators: name: Parker, Verdena
name: Spence, Justin
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: hup

description: Audio file VP-280919-02: Transcription of a re-telling of "Water Dog and Acorn Worm" (text #59 in Sapir and Golla 2001), file VP-021011-01, from the beginning of the story at 52:26 to 56:05.
PARVULARUGOGLOBIGERINA EUGUBINA TYPE-SAMPLE AT CCESELLI (ITALY): PLANKTIC FORAMINIFERAL ASSEMBLAGE AND LOWERMOST DANIAN BIOSTRATIGRAPHIC IMPLICATIONS
Creators: name: ARENILLAS, IGNACIO
name: A. ARZ, JOSE'
Publisher: name: Università degli Studi di Milano
Year: 2000

description: The Parvularugoglobigerina eugubina Biozone (lowermost Danian) was defined at Gubbio (Italy) to precisely define the Cretaceous/Paleogene (K/P) boundary. It was defined by the total range of Pv. eugubina, but this small morphospecies presents some taxonomic problems. The Pv. eugubina holotype and the planktic foraminiferal assemblage of the Pv. eugubina type-sample at Ceselli (Ceselli 3) were revised to precise the biostratigraphic position of this biozone. Of the 21 morphospecies identified in Ceselli 3, 14 are early Paleocene species and 7 are possible Cretaceous survivors of the K/P boundary extinction event. To clarify the lowermost Danian bizonation, it was necessary to taxonomically revise Pv. eugubina and Pv. longiapertura, which have both been identified in this sample. Following the definition of Pv. eugubina and the original definition of the nominal biozone, the base of Pv. eugubina Biozone should be placed at the first appearance datum of the eponymous species and not at the first appearance datum of Pv. longiapertura.
description: Rivista italiana di Paleontologia e Stratigrafia, Vol 106, No 3
Recomposition vs. Prediction: A Novel Anomaly Detection for Discrete Events Based On Autoencoder
Creators: name: Yuan, Lun-Pin
name: Liu, Peng
name: Zhu, Sencun
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: One of the most challenging problems in the field of intrusion detection is anomaly detection for discrete event logs. While most earlier work focused on applying unsupervised learning upon engineered features, most recent work has started to resolve this challenge by applying deep learning methodology to abstraction of discrete event entries. Inspired by natural language processing, LSTM-based anomaly detection models were proposed. They try to predict upcoming events, and raise an anomaly alert when a prediction fails to meet a certain criterion. However, such a predict-next-event methodology has a fundamental limitation: event predictions may not be able to fully exploit the distinctive characteristics of sequences. This limitation leads to high false positives (FPs) and high false negatives (FNs). It is also critical to examine the structure of sequences and the bi-directional causality among individual events. To this end, we propose a new methodology: Recomposing event sequences as anomaly detection. We propose DabLog, a Deep Autoencoder-Based anomaly detection method for discrete event Logs. The fundamental difference is that, rather than predicting upcoming events, our approach determines whether a sequence is normal or abnormal by analyzing (encoding) and reconstructing (decoding) the given sequence. Our evaluation results show that our new methodology can significantly reduce the numbers of FPs and FNs, hence achieving a higher $F_1$ score.
Parton Distributions at Hadronization from Bulk Dense Matter Produced at RHIC
Creators: name: Chen, J. H.
name: Jin, F.
name: Gangadharan, D.
name: Cai, X. Z.
name: Huang, H. Z.
name: Ma, Y. G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We present an analysis of $Ω$, $Ξ$, $Λ$ and $ϕ$ spectra from Au+Au collisions at $\sqrt{s_{NN}}=200$ GeV in terms of distributions of effective constituent quarks at hadronization. Consistency in quark ratios derived from various hadron spectra provides clear evidence for hadron formation dynamics as suggested by quark coalescence or recombination models. We argue that the constituent quark distribution reflects properties of the effective partonic degrees of freedom at hadronization. Experimental data indicate that strange quarks have a transverse momentum distribution flatter than that of up/down quarks consistent with hydrodynamic expansion in partonic phase prior to hadronization. After the AMPT model is tuned to reproduce the strange and up/down quark distributions, the model can describe the measured spectra of hyperons and $ϕ$ mesons very well where hadrons are formed through dynamical coalescence.
description: 5 pages, 3 figures, two more paragraph added to address the referee's comment, figure updated to include the KET scale. Accepted version to appear in Phys. Rev. C
CNN Poll: March 2018 - Poll 4
Creators: name: CNN
Publisher: name: Roper Center for Public Opinion Research
Year: 2019

description: President Trump job approval (1); Trump economy job approval (1); Trump foreign affairs job approval (1); Trump North Korea job approval (2); Trump investigation into Russian election interference job approval (1); Trump gun policy job approval (1); Trump foreign trade job approval (1); Trump relations with Russia (1); Trump characteristics (7); Trump presidential appointees (6); Congress job approval (1); registered to vote (1); voting enthusiasm (1); Republican vs. Democratic candidate for Congress (2); Congressional Republicans vs. Democrats would do better on issues (7); investigation into Russian interference in 2016 presidential election (5); North Korea U.S. relations (3); Trump winner of presidential election (1); likelihood of supporting Democratic presidential candidates (6); Republican Party should renominate Trump (2); Trump non-disclosure agreements (1); Trump extra-marital affair (1).
Chiral transport in curved spacetime via holography
Creators: name: Avdoshkin, Alexander
name: Sharipov, Rustem
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider a holographic model of strongly interacting plasma with a gravitational anomaly. In this model, we compute parity-odd responses of the system at finite temperature and chemical potential to external electromagnetic and gravitational fields. Working within the linearized fluid/gravity duality, we performed the calculation up to the third order in gradient expansion. Besides reproducing the chiral magnetic(CME) and vortical (CVE) effects we also obtain gradient corrections to the CME and CVE due to the gravitational anomaly. Additionally, we find energy-momentum and current responses to the gravitational field similarly determined by the gravitational anomaly. The energy-momentum response is the first purely gravitational transport effect that has been related to quantum anomalies in holographic theories.
description: 21 pages
REVISION OF THE OSTRACODE SUBGENUS PALEOBLITACYTHEREIS BENSON, 1977
Creators: name: DALL'ANTONIA, BARBARA
Publisher: name: Università degli Studi di Milano
Year: 2000

description: The genus Oblitacythereis, type species Oblitacythereis (Oblitacythereis) mediterranea Benson, 1977, and the subgenera Oblitacythereis and Paleoblitacythereis are well defined by Benson (1977), who designated Carinocythereis ruggierii Russo, 1966 as type species of Paleoblitacythereis. The specimens figured and described as Carinocythereis ruggierii by Benson (1977), however, clearly differ from Russo's species, and coincide well with Oblitacythereis sp. 3 Russo & Bossio, 1976, as stated by Bonaduce & Russo (1985). As a consequence of this misidentification the subgenus Paleoblitacythereis is subject to uncertainty and potential instability. The type species designated by Benson should be considered as a new nominal species and Carinocythereis ruggierii Russo, which actually belongs to Paleoblitacythereis, should be revised. The study of well-preserved specimens from some Miocene formations in southern Italy prompts the author to propose herein a systematic revision of the Italian representatives of the subgenus Paleoblitacythereis. Three species are discussed. These are: Oblitacythereis (Paleoblitacythereis) ruggierii (Russo, 1966), Oblitacythereis (Paleoblitacythereis) bossioi n. sp. ( = Oblitacythereis sp. 3 Russo & Bossio, 1976), here proposed as the new nominal type species of Paleoblitacythereis and, finally, Oblitacythereis (Paleoblitacythereis) apula n. sp., described as new. The systematic notes of each species are given with the bio-chronostratigraphical distribution resulting from the present study together with some palaeoecological remarks.
description: Rivista italiana di Paleontologia e Stratigrafia, Vol 106, No 3
Possibility of a Two-Component Tomonaga-Luttinger Liquid in Frustrated Integer-Spin Tubes
Creators: name: Sato, Masahiro
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Uniform-field effects for frustrated odd-leg integer-spin tubes (cylinder type spin systems) are investigated in the weak interchain-coupling regime. We predict that, as the field exceeds the spin gap, a two-component Tomonaga-Luttinger liquid (TLL) appears due to the condensation of the doubly degenerate lowest magnons. Furthermore, it is argued that when the uniform field is so strong that the second lowest magnons are also condensed, the two-component TLL is destroyed and a new one-component TLL emerges. This quantum phase transition may be detected as a magnetization cusp.
description: 2 pages, 1 figure, final version (proceedings of LT24), see also cond-mat/0410419 and cond-mat/0506049 (PRB72, 104438 (2005))
The history of the United Players of Vancouver
Creators: name: Lee, Wendy
Publisher: name: University of British Columbia
Year: 2009

description: In 1959 the St. James United Church Drama Group was created by Gwen Crowe and Eileen Oliver. This group is now called The United Players of Vancouver; it resides at The Jericho Arts Centre. Over the span of nearly forty years there have been many changes. The group has altered its name three times and its main location twice; the membership transforming it from a small group of friends to a semi-professional company of some reputation. The purpose of this study is to document the history of this company and its development into an important, innovative part of Vancouver's community theatre. Material for the thesis was obtained primarily through archival files kept by The United Players of Vancouver. Materials included handbills, programs, letters, minutes of meetings, membership lists and accounts. Personal interviews of people involved in the executive of the company along with newspaper clippings were important sources of information. There were some difficulties associated with researching the formative years of the company. The archival information is not available for the years 1959 to 1964 and many of the original members have died or moved away. The majority of information has therefore come from the recollections of Gwen Crowe, a founding member of the United Players. This thesis covers the general history of the United Players of Vancouver, the role of this theatre within its community, and the possible future of the company as seen by its members, especially Andree Karas, Artistic Director for the last thirteen years.
Hydrodynamical model of QED cascade expansion in an extremely strong laser pulse
Creators: name: Samsonov, A. S.
name: Kostyukov, I. Yu.
name: Nerush, E. N.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Development of the self-sustained quantum-electrodynamical (QED) cascade in a single strong laser pulse is studied analytically and numerically. The hydrodynamical approach is used to construct the analytical model of the cascade evolution, which includes the key features of the cascade observed in 3D QED particle-in-cell (QED-PIC) simulations such as the magnetic field predominance in the cascade plasma and laser energy absorption. The equations of the model are derived in the closed form and are solved numerically. Direct comparison between the solutions of the model equations and 3D QED-PIC simulations shows that our model is able to describe the complex nonlinear process of the cascade development qualitatively well. The various regimes of the interaction based on the intensity of the laser pulse are revealed in both the solutions of the model equations and the results of the QED-PIC simulations.
STRATIGRAPHY AND SEDIMENTARY HISTORY OF THE PLIO-PLEISTOCENE SANT'ARCANGELO BASIN, OUTHERN APENNINES, ITALY
Creators: name: ZAVALA, CARLOS
Publisher: name: Università degli Studi di Milano
Year: 2000

description: Defined as a piggyback basin, the Plio-Pleistocene Sant'Arcangelo basin is one of the more recent onshore sedimentary basin of the Southern Apennines. Extensive field studies allow to reinterpret the whole stratigraphy of the basin in a more simple and significant way. Five unconformity-bounded units ("groups") have been recognised : The (1) Catarozzo Group (late Pliocene) unconformably overlies pre-Miocene units, and it is composed of a flood-dominated fan-delta marine (C1) and restricted-marine (C2) systems bounded by a sharp contact with a total thickness up to 650 meters. The (2) Aliano Group (late Pliocene - early Pleistocene) includes an up to 1,400 meters thick succession of flood-dominated fan-delta systems, with facies ranging from poorly organised alluvial conglomerates in the west to massive marine mudstones in the east. Two sub-units have been recognised, bounded by a regional unconformity, which shows an abrupt passage from marine (A1) to restricted-marine (A2) conditions. The (3) Tursi Group (early-middle Pleistocene) reaches a thickness of 500 meters. It is composed of two sub-units, corresponding to alluvial fan (T1) and fan-delta (T2) systems. The alluvial facies of T2 (conglomerates) outcrop extensively in the Sant'Arcangelo basin, with equivalent flood-dominated shelfal sandstone lobes broadly developed in the Tursi area (Metaponto basin). The (4) Profico and (5) Montalbano Jonico groups (middle Pleistocene) are partially time equivalents, and were developed in both sides of the Valsinni structure, which divided an early, broader Sant'Arcangelo basin into two sub-basins, the present "Sant'Arcangelo" and "Metaponto" basins. The Profico Group has a thickness of up to 300 m and consists of lacustrine strata overlying in angular unconformity the Tursi Allogroup in the "Sant'Arcangelo basin". The Montalbano Jonico Group on the other hand is made up of up to 300 m of fine-grained marine strata unconformably overlying the Tursi Group in the "Metaponto basin". All the units considered display clear evidences of synsedimentary tectonics.
description: Rivista italiana di Paleontologia e Stratigrafia, Vol 106, No 3
Thermodynamic models for a concentration and electric field dependent susceptibility in liquid electrolytes
Creators: name: Landstorfer, Manuel
name: Müller, Rüdiger
Publisher: name: Weierstrass Institute
Year: 2021
Subjects: subject: Electrochemistry
subject: double layer
subject: dielectric susceptibility
subject: 65N30
subject: 78A57
subject: 80A17

description: The dielectric susceptibility $chi$ is an elementary quantity of the electrochemical double layer and the associated Poisson equation. While most often $chi$ is treated as a material constant, its dependency on the salt concentration in liquid electrolytes is demonstrated by various bulk electrolyte experiments. This is usually referred to as dielectric decrement. Further, it is theoretically well accepted that the susceptibility declines for large electric fields. This effect is frequently termed dielectric saturation. We analyze the impact of a variable susceptibility in terms of species concentrations and electric fields based on non-equilibrium thermodynamics. This reveals some non-obvious generalizations compared to the case of a constant susceptibility. In particular the consistent coupling of the Poisson equation, the momentum balance and the chemical potentials functions are of ultimate importance. In a numerical study, we systematically analyze the effects of a concentration and field dependent susceptibility on the double layer of a planar electrode|electrolyte interface. We compute the differential capacitance and the spatial structure of the electric potential, solvent concentration and ionic distribution for various non-constant models of $chi$.
Macroscopic Entanglement and Phase Transitions
Creators: name: Anders, Janet
name: Vedral, Vlatko
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: This paper summarises the results of our research on macroscopic entanglement in spin systems and free Bosonic gases. We explain how entanglement can be observed using entanglement witnesses which are themselves constructed within the framework of thermodynamics and thus macroscopic observables. These thermodynamical entanglement witnesses result in bounds on macroscopic parameters of the system, such as the temperature, the energy or the susceptibility, below which entanglement must be present. The derived bounds indicate a relationship between the occurrence of entanglement and the establishment of order, possibly resulting in phase transition phenomena. We give a short overview over the concepts developed in condensed matter physics to capture the characteristics of phase transitions in particular in terms of order and correlation functions. Finally we want to ask and speculate whether entanglement could be a generalised order concept by itself, relevant in (quantum induced) phase transitions such as BEC, and that taking this view may help us to understand the underlying process of high-T superconductivity.
description: 9 pages, 7 figures (color), Submitted to special OSID issue, Proceedings of the 38th Symposium on Mathematical Physics - Quantum Entanglement & Geometry, Torun (Poland), June 2006
Lipschitz stability of optimal controls for the steady-state Navier-Stokes equations
Creators: name: Roubíček, Tomaš
name: Tröltzsch, Fredi
Publisher: name: Technische Universität Berlin
Year: 2002
Subjects: subject: 510 Mathematik
subject: incompressible viscous fluids
subject: flow control
subject: first- and second-order optimality conditions
subject: Lipschitz stability

description: An optimal control problem with quadratic cost functional for the steady-state Navier-Stokes equations with no-slip boundary condition is considered. Lipschitz stability of locally optimal controls with respect to certain perturbations of both the cost functional and the equation is proved provided a second-order sufficient optimality condition holds. For a sufficiently small Reynolds number, even global Lipschitz stability of the unique optimal control is shown.
Simulation of optical lattice trap loading from a cold atomic ensemble
Creators: name: Watson, Raymon S.
name: McFerran, John J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We model the efficiency of loading atoms of various species into a one dimensional optical lattice from a cold ensemble taking into account the initial cloud temperature and size, the lattice laser properties affecting the trapping potential, and atomic parameters. Stochastic sampling and dynamical evolution are used to simulate the transfer, leading to estimates of transfer efficiency for varying trap depth and profile. Tracing the motion of the atoms also enables the evaluation of the equilibrium temperature and site occupancy in the lattice. The simulation compares favourably against a number of experimental results, and is used to compute an optimum lattice-waist to cloud-radius ratio for a given optical power.
description: 12 pages, 8 figures, au.mathworks.com/matlabcentral/fileexchange/79568-the-watson-optical-trap-simulator
Placing LOFAR-detected quasars in CIV emission space: implications for winds, jets and star formation
Creators: name: Rankine, Amy L.
name: Matthews, James H.
name: Hewett, Paul C.
name: Banerji, Manda
name: Morabito, Leah K.
name: Richards, Gordon T.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present an investigation of the low-frequency radio and ultraviolet properties of a sample of $\simeq$10,500 quasars from the Sloan Digital Sky Survey Data Release 14, observed as part of the first data release of the Low-Frequency-Array Two-metre Sky Survey. The quasars have redshifts $1.5 < z < 3.5$ and luminosities $44.6 < \log(L_{\text{bol}}/\text{erg s}^{-1}) < 47.2$. We employ ultraviolet spectral reconstructions based on an independent component analysis to parametrize the CIV$λ$1549-emission line that is used to infer the strength of accretion disc winds, and the HeII$λ$1640 line, an indicator of the soft X-ray flux. We find that radio-detected quasars are found in the same region of CIV blueshift versus equivalent-width space as radio-undetected quasars, but that the loudest, most luminous and largest radio sources exist preferentially at low CIV blueshifts. Additionally, the radio-detection fraction increases with blueshift whereas the radio-loud fraction decreases. In the radio-quiet population, we observe a range of HeII equivalent widths as well as a Baldwin effect with bolometric luminosity, whilst the radio-loud population has mostly strong HeII, consistent with a stronger soft X-ray flux. The presence of strong HeII is a necessary but not sufficient condition to detect radio-loud emission suggesting some degree of stochasticity in jet formation. Using energetic arguments and Monte Carlo simulations, we explore the plausibility of winds, compact jets and star formation as sources of the radio quiet emission, ruling out none. The existence of quasars with similar ultraviolet properties but differing radio properties suggests, perhaps, that the radio and ultraviolet emission is tracing activity occurring on different timescales.
description: 13 pages, 10 figures, plus appendices. Minor changes to match published version
Large Chiral Diffeomorphisms on Riemann Surfaces and W-algebras
Creators: name: Bandelloni, Giuseppe
name: Lazzarini, Serge
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The diffeomorphism action lifted on truncated (chiral) Taylor expansion of a complex scalar field over a Riemann surface is presented in the paper under the name of large diffeomorphisms. After an heuristic approach, we show how a linear truncation in the Taylor expansion can generate an algebra of symmetry characterized by some structure functions. Such a linear truncation is explicitly realized by introducing the notion of Forsyth frame over the Riemann surface with the help of a conformally covariant algebraic differential equation. The large chiral diffeomorphism action is then implemented through a B.R.S. formulation (for a given order of truncation) leading to a more algebraic set up. In this context the ghost fields behave as holomorphically covariant jets. Subsequently, the link with the so called W-algebras is made explicit once the ghost parameters are turned from jets into tensorial ghost ones. We give a general solution with the help of the structure functions pertaining to all the possible truncations lower or equal to the given order. This provides another contribution to the relationship between KdV flows and W-diffeomorphims
description: LaTeX file, 31 pages, no figure. Version to appear in J. Math. Phys. Work partly supported by Region PACA and INFN
Correlated samples with fixed and nonnormal latent variables
Creators: name: Papadopoulos, Savas
name: Amemiya, Yasuo
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62F35, 62E20, 62H99 (Primary) 62H25 (Secondary)

description: A general structural equation model is fitted on a panel data set that consists of $I$ correlated samples. The correlated samples could be data from correlated populations or correlated observations from occasions of panel data. We consider cases in which the full pseudo-normal likelihood cannot be used, for example, in highly unbalanced data where the participating individuals do not appear in consecutive years. The model is estimated by a partial likelihood that would be the full and correct likelihood for independent and normal samples. It is proved that the asymptotic standard errors (a.s.e.'s) for the most important parameters and an overall-fit measure are the same as the corresponding ones derived under the standard assumptions of normality and independence for all the observations. These results are very important since they allow us to apply classical statistical methods for inference, which use only first- and second-order moments, to correlated and nonnormal data. Via a simulation study we show that the a.s.e.'s based on the first two moments have negligible bias and provide less variability than the a.s.e.'s computed by an alternative robust estimator that utilizes up to fourth moments. Our methodology and results are applied to real panel data, and it is shown that the correlated samples cannot be formulated and analyzed as independent samples. We also provide robust a.s.e.'s for the remaining parameters. Additionally, we show in the simulation that the efficiency loss for not considering the correlation over the samples is small and negligible in the cases with random and fixed variables.
description: Published at http://dx.doi.org/10.1214/009053605000000570 in the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Error estimates for the finite-element approximation of a semilinear elliptic control problem
Creators: name: Casas, Eduardo
name: Tröltzsch, Fredi
Publisher: name: Technische Universität Berlin
Year: 2002
Subjects: subject: 510 Mathematik
subject: optimal control problems involving partial differential equations
subject: problems involving partial differential equations
subject: methods based on necessary conditions
subject: optimization and variational techniques

description: We consider the finite-element approximation of a distributed optimal control problem governed by a semilinear elliptic partial differential equation, where pointwise constraints on the control are given. We prove the existence of local approximate solutions converging to a given local reference solution. Moreover, we derive error estimates for local solutions in the maximum norm.
Error of the two-step BDF for the incompressible Navier-Stokes problem
Creators: name: Emmrich, Etienne
Publisher: name: Technische Universität Berlin
Year: 2002
Subjects: subject: 510 Mathematik
subject: incompressible Navier-Stokes equation
subject: time discretisation
subject: backward differentiation formula
subject: error estimate
subject: parabolic smoothing

description: The incompressible Navier-Stokes problem is discretised in time by the two-step backward differentiation formula with constant step sizes. Error estimates are proved under feasible assumptions on the regularity of the exact solution. The question of compatibility of problem data is taken into account. Whereas the time-weighted velocity error is of optimal second order in the $l^{\infty}(L^2)$- and $l^2(H_0^1)$-norm, the time-weighted error in the pressure is of first order in the $l^{\infty}(L^2/\mathbbm{R})$-norm. Furthermore, a linearisation that is based upon a modification of the convective term using a formally second-order extrapolation is considered. The velocity error is then shown to be of order $3/2$, and the pressure error is of order $1/2$. The results presented cover both the two- and three-dimensional case. Particular attention is directed to appearing constants and step size restrictions.
Interference in the Heisenberg Picture of Quantum Field Theory, Local Elements of Reality and Fermions
Creators: name: Marletto, Chiara
name: Vidal, Nicetu Tibau
name: Vedral, Vlatko
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We describe the quantum interference of a single photon in the Mach-Zehnder interferometer using the Heisenberg picture. Our purpose is to show that the description is local just like in the case of the classical electromagnetic field, the only difference being that the electric and the magnetic fields are, in the quantum case, operators (quantum observables). We then consider a single-electron Mach-Zehnder interferometer and explain what the appropriate Heisenberg picture treatment is in this case. Interestingly, the parity superselection rule forces us to treat the electron differently to the photon. A model using only local quantum observables of different fermionic modes, such as the current operator, is nevertheless still viable to describe phase acquisition. We discuss how to extend this local analysis to coupled fermionic and bosonic fields within the same local formalism of quantum electrodynamics as formulated in the Heisenberg picture.
Cosmeceutical Applications of Essential Oils of Amomum biflorum Jack from Whole Plant and Rhizome
Creators: name: Catheleeya Mekjaruskul
Publisher: name: Thammasat University
Year: 2020
Subjects: Amomum biflorum
essential oil
chemical constituent
antioxidant
antityrosinase
anti-Cutibacterium acnes

description: Thai Journal of Science and Technology, 9, 5, 680-692
BAMSProd: A Step towards Generalizing the Adaptive Optimization Methods to Deep Binary Model
Creators: name: Liu, Junjie
name: Wen, Dongchao
name: Wang, Deyu
name: Tao, Wei
name: Chen, Tse-Wei
name: Osa, Kinya
name: Kato, Masami
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Recent methods have significantly reduced the performance degradation of Binary Neural Networks (BNNs), but guaranteeing the effective and efficient training of BNNs is an unsolved problem. The main reason is that the estimated gradients produced by the Straight-Through-Estimator (STE) mismatches with the gradients of the real derivatives. In this paper, we provide an explicit convex optimization example where training the BNNs with the traditionally adaptive optimization methods still faces the risk of non-convergence, and identify that constraining the range of gradients is critical for optimizing the deep binary model to avoid highly suboptimal solutions. For solving above issues, we propose a BAMSProd algorithm with a key observation that the convergence property of optimizing deep binary model is strongly related to the quantization errors. In brief, it employs an adaptive range constraint via an errors measurement for smoothing the gradients transition while follows the exponential moving strategy from AMSGrad to avoid errors accumulation during the optimization. The experiments verify the corollary of theoretical convergence analysis, and further demonstrate that our optimization method can speed up the convergence about 1:2x and boost the performance of BNNs to a significant level than the specific binary optimizer about 3:7%, even in a highly non-convex optimization problem.
description: 10 pages, 4 figures, 2 tables
Efficiency of Gibberellin to Enhance Young Shoot Growth of Durian (Durio zibethinus) var.'Monthong'
Creators: name: Wikanya Prathumyot
Publisher: name: Thammasat University
Year: 2020
Subjects: durian
gibberellin
young shoot
growth

description: Thai Journal of Science and Technology, 9, 5, 693-700
Exploring Network-Wide Flow Data with Flowyager
Creators: name: Saidi, Said Jawad
name: Maghsoudlou, Aniss
name: Foucard, Damien
name: Smaragdakis, Georgios
name: Poese, Ingmar
name: Feldmann, Anja
Publisher: name: arXiv
Year: 2020
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Many network operations, ranging from attack investigation and mitigation to traffic management, require answering network-wide flow queries in seconds. Although flow records are collected at each router, using available traffic capture utilities, querying the resulting datasets from hundreds of routers across sites and over time, remains a significant challenge due to the sheer traffic volume and distributed nature of flow records. In this paper, we investigate how to improve the response time for a priori unknown network-wide queries. We present Flowyager, a system that is built on top of existing traffic capture utilities. Flowyager generates and analyzes tree data structures, that we call Flowtrees, which are succinct summaries of the raw flow data available by capture utilities. Flowtrees are self-adjusted data structures that drastically reduce space and transfer requirements, by 75% to 95%, compared to raw flow records. Flowyager manages the storage and transfers of Flowtrees, supports Flowtree operators, and provides a structured query language for answering flow queries across sites and time periods. By deploying a Flowyager prototype at both a large Internet Exchange Point and a Tier-1 Internet Service Provider, we showcase its capabilities for networks with hundreds of router interfaces. Our results show that the query response time can be reduced by an order of magnitude when compared with alternative data analytics platforms. Thus, Flowyager enables interactive network-wide queries and offers unprecedented drill-down capabilities to, e.g., identify DDoS culprits, pinpoint the involved sites, and determine the length of the attack.
description: accepted at IEEE TNSM Journal DOI added
Rough translations of audio files recorded in 2009
Creators: name: Parker, Verdena
name: Spence, Justin
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: hup

description: Audio files VP-190919-10 through VP-190919-14: Rough translations (minute-by-minute) of files VP-291009-02 through VP-291009-06, recorded by Verdena in 2009. One translation file per original; VP-190919-14 translates VP-291009-06 from the beginning of the file to 15:35. No transcription in these sessions, translation only.
Higher rank Wilson loops from a matrix model
Creators: name: Hartnoll, Sean A.
name: Kumar, S. Prem
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We compute the circular Wilson loop of N=4 SYM theory at large N in the rank k symmetric and antisymmetric tensor representations. Using a quadratic Hermitian matrix model we obtain expressions for all values of the 't Hooft coupling. At large and small couplings we give explicit formulae and reproduce supergravity results from both D3 and D5 branes within a systematic framework.
description: 1+18 pages. 1 figure. Typos corrected
Centroaffine Bernstein Problems
Creators: name: Li, An-Min
name: Li, Haizhong
name: Simon, Udo
Publisher: name: Technische Universität Berlin
Year: 2002
Subjects: subject: 510 Mathematik
subject: centroaffine extremal hypersurfaces
subject: centroaffine Bernstein problems
subject: affine spheres

description: C.P. Wang [21] studied the Euler-Lagrange equations for the centroaffine area functional of hypersurfaces. We consider classes of examples satisfying these equations together with completeness conditions. We formulate appropriate centroaffine Bernstein problems and give partial solutions.
Emergence of atom-light-mirror entanglement inside an optical cavity
Creators: name: Genes, C.
name: Vitali, D.
name: Tombesi, P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a scheme for the realization of a hybrid, strongly quantum-correlated system formed of an atomic ensemble surrounded by a high-finesse optical cavity with a vibrating mirror. We show that the steady state of the system shows tripartite and bipartite continuous variable entanglement in experimentally accessible parameter regimes, which is robust against temperature.
Diacylglycerol acyltransferase (DGAT) activity in relation to muscle fat content and DGAT1 genotype in two different breeds of Bos taurus
Creators: name: Sorensen, Brent M.; Kühn, Christa; Teuscher, Friedrich; Schneider, Falk; Weselake, Randall J.; Wegner, Jochen J.
Publisher: name: University of Alberta Libraries
Year: 2006

Abstract
Prospects for Antineutrino Running at MiniBooNE
Creators: name: Wascko, M. O.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We outline a program of antineutrino cross-section measurements necessary for the next generation of neutrino oscillation experiments, that can be performed with one year of data at MiniBooNE. We describe three independent methods of constraining wrong-sign (neutrino) backgrounds in an antineutrino beam, and their application to the MiniBooNE antineutrino cross section measurements.
description: 3 pages, 0 figures, NuFact05 to be published in Nucl. Phys. B (Proc. Supp.)
Three-dimensional Segmentation of the Scoliotic Spine from MRI using Unsupervised Volume-based MR-CT Synthesis
Creators: name: Karthik, Enamundram M. V. Naga
name: Laporte, Catherine
name: Cheriet, Farida
Publisher: name: arXiv
Year: 2020
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Applications (stat.AP)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Vertebral bone segmentation from magnetic resonance (MR) images is a challenging task. Due to the inherent nature of the modality to emphasize soft tissues of the body, common thresholding algorithms are ineffective in detecting bones in MR images. On the other hand, it is relatively easier to segment bones from CT images because of the high contrast between bones and the surrounding regions. For this reason, we perform a cross-modality synthesis between MR and CT domains for simple thresholding-based segmentation of the vertebral bones. However, this implicitly assumes the availability of paired MR-CT data, which is rare, especially in the case of scoliotic patients. In this paper, we present a completely unsupervised, fully three-dimensional (3D) cross-modality synthesis method for segmenting scoliotic spines. A 3D CycleGAN model is trained for an unpaired volume-to-volume translation across MR and CT domains. Then, the Otsu thresholding algorithm is applied to the synthesized CT volumes for easy segmentation of the vertebral bones. The resulting segmentation is used to reconstruct a 3D model of the spine. We validate our method on 28 scoliotic vertebrae in 3 patients by computing the point-to-surface mean distance between the landmark points for each vertebra obtained from pre-operative X-rays and the surface of the segmented vertebra. Our study results in a mean error of 3.41 $\pm$ 1.06 mm. Based on qualitative and quantitative results, we conclude that our method is able to obtain a good segmentation and 3D reconstruction of scoliotic spines, all after training from unpaired data in an unsupervised manner.
description: To appear in the Proceedings of the SPIE Medical Imaging Conference 2021, San Diego, CA. 9 pages, 4 figures in total
Exposure assessment of characteristic compounds at a fire & safety training center
Creators: name: Hills, Dale
Publisher: name: University of British Columbia
Year: 2009

description: Sampling for characteristic compounds emitted from fires at the Maple Ridge Fire and Safety Training Center was conducted to assess staff exposure to these compounds. Area samples were taken at outdoor burn sites to measure CO, CO₂, S0₂ , HCN, formaldehyde, particulate, and benzene, to determine if areas where staff technicians monitor emergency switches are free of exposure and to find if there are safe distances from these pits where harmful exposures may not occur. Area samples were taken inside the indoor bum structures to determine the time period to dilute these post-fire residual contaminants to levels where health effects would not be expected. All results were compared to the Workers' Compensation Board of BC exposure limits. Mean exposure at the propane pad fuel tank was below the detection limit, and at the large outdoor fuel and depth burn sites the mean exposure was below the exposure limits. At the extinguisher pad training site, mean levels of particulate and benzene exceeded the exposure limits (particulate 417 mg/m3, benzene 0.9 ppm). Mean exposure levels, following venting in the indoor burn sites, exceeded the exposure limit for CO (36 ppm), benzene (0.8 ppm), and formaldehyde (0.372 ppm), while C0₂ (925 ppm), S0₂ (1.5 ppm), particulate (0.2 mg/m³), and HCN (0.1 ppm) were less than the exposure limit. Formaldehyde (0.011 ppm) was detected in the burn building following the absence of any burning for up to one week, and was attributed to off-gassing of the chemical from the concrete walls. Control options to reduce exposure are proposed. They include: relocation of the extinguisher pad with future site expansion, altering work practices found to be predictors of exposure, and by avoiding entry into the ship mock-up for a minimum of 380 minutes, and the burn building for 140 minutes, following the last burning session. The results of the study suggest that for some burning sites, there are situations where exposure could occur, however, the risk of health effects may be slight if proper control of these exposures is exercised.