cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Nonlinear electromagnetic fields and symmetries
Creators: name: Barjašić, Irena
name: Gulin, Luka
name: Smolić, Ivica
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We extend the classical results on the symmetry inheritance of the canonical electromagnetic fields, described by the Maxwell's Lagrangian, to a much wider class of models, which include those of the Born-Infeld, power Maxwell and the Euler-Heisenberg type. Symmetry inheriting fields allow the introduction of electromagnetic scalar potentials and these are proven to be constant on the Killing horizons. Finally, using the relations obtained along the analysis, we generalize and simplify the recent proof for the symmetry inheritance of the 3-dimensional case, as well as give the first constraint for the higher dimensional electromagnetic fields.
description: 6 pages; slightly revised, published version (two statements removed from the Theorem II.1, equations (25) and (26) corrected, several comments added/revised)
Universal Properties of Galactic Rotation Curves and a First Principles Derivation of the Tully-Fisher Relation
Creators: name: O'Brien, James G.
name: Chiarelli, Thomas L.
name: Mannheim, Philip D.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In a recent paper McGaugh, Lelli, and Schombert showed that in an empirical plot of the observed centripetal accelerations in spiral galaxies against those predicted by the Newtonian gravity of the luminous matter in those galaxies the data points occupied a remarkably narrow band. While one could summarize the mean properties of the band by drawing a single mean curve through it, by fitting the band with the illustrative conformal gravity theory with fits that fill out the width of the band we show here that the width of the band is just as physically significant. We show that at very low luminous Newtonian accelerations the plot can become independent of the luminous Newtonian contribution altogether, but still be non-trivial due to the contribution of matter outside of the galaxies (viz. the rest of the visible universe). We present a new empirical plot of the difference between the observed centripetal accelerations and the luminous Newtonian expectations as a function of distance from the centers of galaxies, and show that at distances greater than 10 kpc the plot also occupies a remarkably narrow band, one even close to constant. Using the conformal gravity theory we provide a first principles derivation of the empirical Tully-Fisher relation.
description: 6 pages, 15 figures. The paper is a comment on S. S. McGaugh, F. Lelli, and J. M. Schombert, Phys. Rev. Lett. 117, 201101 (2016). Updated to include a first principles derivation of the Tully-Fisher relation using the conformal gravity theory. Submitted to Physics Letters B
The Day after the Scandal [Part two]. An Empirical Evidence on Liability Action and Reputational Risk
Creators: name: Rangone, Adalberto
Publisher: name: Economia Aziendale Online -
Year: 2023
Subjects: Sustainability, Corporate Governance, Reputational Risk, Conflict Management, ESG

description: This paper consists of an empirical analysis, successive to Part 1 (Rangone, 2023), concerning the correlation between the execution of a liability action and the increase of potential negative effects from a reputational point of view that undermine the company’s stability. The cases of application of the liability action and those which have adopted the arbitration clause as a term of comparison have been defined on a population of 428 Italian unlisted joint-stock companies. The technique of Chi-Square was used to avoid empirical evidence being determined by chance. The findings demonstrate the substantial correlation between the adoption of the arbitration clause – replacing the liability action against directors – and the reduction of cases of reputational problems regardless of their causes.
description: Economia Aziendale Online -, Vol 14, No 2 (2023): ISSUE 2/2023
High-performance conditional-driving gate for Kerr parametric oscillator qubits
Creators: name: Chono, Hiroomi
name: Goto, Hayato
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Kerr parametric oscillators (KPOs), two-photon driven Kerr-nonlinear resonators, can stably hold coherent states with opposite-sign amplitudes and are promising devices for quantum computing. Recently, we have theoretically proposed a two-qubit gate $R_{zz}$ for highly detuned KPOs and called it a conditional-driving gate [Chono $\textit{et al}$., Phys. Rev. Res. $\textbf{4}$, 043054 (2022)]. In this study, analyzing its superconducting-circuit model and deriving a corresponding static model, we find that an AC-Zeeman shift due to the flux pulse for the gate operation largely affects the gate performance. This effect becomes a more aggravating factor with shorter gate times, leading to an increase in the error rate. We thus propose a method to cancel this undesirable effect. Furthermore, through the use of shortcuts to adiabaticity and the optimization of flux pulses, we numerically demonstrate a conditional-driving gate with average fidelity exceeding 99.9$\%$ twice faster than that without the proposed method.
description: 9 pages, 6 figures
One Solution for Good? Systematic Analysis of Industrial Human Resource Supply Chain: Study on the Educational Dilemma and Countermeasures of Declining Birth Rate in Taiwan
Creators: name: Liou, Iris Yi-Shin
Publisher: name: Southeast Bangkok University
Year: 2022
Subjects: Human resource
Supply Chain
Educational Policy
Low Birth Rate
Tertiary Education

description: Supply Chain and Sustainability Research (SCSR), 1, 1, 80-90
Observation of a strong coupling effect on electron-ion collisions in ultracold plasmas
Creators: name: Chen, Wei-Ting
name: Witte, Craig
name: Roberts, Jacob L.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Ultracold plasmas (UCP) provide a well-controlled system for studying multiple aspects in plasma physics that include collisions and strong coupling effects. By applying a short electric field pulse to a UCP, a plasma electron center-of-mass (CM) oscillation can be initiated. In accessible parameter ranges, the damping rate of this oscillation is determined by the electron-ion collision rate. We performed measurements of the oscillation damping rate with such parameters and compared the measured rates to both a molecular dynamic (MD) simulation that includes strong coupling effects and to Monte-Carlo collisional operator simulation designed to predict the damping rate including only weak coupling considerations. We found agreement between experimentally measured damping rate and the MD result. This agreement did require including the influence of a previously unreported UCP heating mechanism whereby the presence of a DC electric field during ionization increased the electron temperature, but estimations and simulations indicate that such a heating mechanism should be present for our parameters. The measured damping rate at our coldest electron temperature conditions was much faster than the weak coupling prediction obtained from the Monte-Carlo operator simulation, which indicates the presence of significant strong coupling influence. The density averaged electron strong coupling parameter $Γ$ measured at our coldest electron temperature conditions was 0.35.
description: 5 pages, 2 figures
Gemini Observations of Galaxies in Rich Early Environments (GOGREEN) I: Survey Description
Creators: name: Balogh, Michael L.
name: Gilbank, David G.
name: Muzzin, Adam
name: Rudnick, Gregory
name: Cooper, Michael C.
name: Lidman, Chris
name: Biviano, Andrea
name: Demarco, Ricardo
name: McGee, Sean L.
name: Nantais, Julie B.
name: Noble, Allison
name: Old, Lyndsay
name: Wilson, Gillian
name: Yee, Howard K. C.
name: Bellhouse, Callum
name: Cerulo, Pierluigi
name: Chan, Jeffrey
name: Pintos-Castro, Irene
name: Simpson, Rane
name: van der Burg, Remco F. J.
name: Zaritsky, Dennis
name: Ziparo, Felicia
name: Alonso, M. Victoria
name: Bower, Richard G.
name: De Lucia, Gabriella
name: Finoguenov, Alexis
name: Lambas, Diego Garcia
name: Muriel, Hernan
name: Parker, Laura C.
name: Rettura, Alessandro
name: Valotto, Carlos
name: Wetzel, Andrew
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We describe a new Large Program in progress on the Gemini North and South telescopes: Gemini Observations of Galaxies in Rich Early Environments (GOGREEN). This is an imaging and deep spectroscopic survey of 21 galaxy systems at $110$ in halo mass. The scientific objectives include measuring the role of environment in the evolution of low-mass galaxies, and measuring the dynamics and stellar contents of their host haloes. The targets are selected from the SpARCS, SPT, COSMOS and SXDS surveys, to be the evolutionary counterparts of today's clusters and groups. The new red-sensitive Hamamatsu detectors on GMOS, coupled with the nod-and-shuffle sky subtraction, allow simultaneous wavelength coverage over $λ\sim 0.6$--$1.05μ$m, and this enables a homogeneous and statistically complete redshift survey of galaxies of all types. The spectroscopic sample targets galaxies with AB magnitudes $z^{\prime}<24.25$ and [3.6]$μ$m$<22.5$, and is therefore statistically complete for stellar masses $M_\ast\gtrsim10^{10.3}M_\odot$, for all galaxy types and over the entire redshift range. Deep, multiwavelength imaging has been acquired over larger fields for most systems, spanning $u$ through $K$, in addition to deep IRAC imaging at 3.6$μ$m. The spectroscopy is $\sim 50$ per cent complete as of semester 17A, and we anticipate a final sample of $\sim 500$ new cluster members. Combined with existing spectroscopy on the brighter galaxies from GCLASS, SPT and other sources, GOGREEN will be a large legacy cluster and field galaxy sample at this redshift that spectroscopically covers a wide range in stellar mass, halo mass, and clustercentric radius.
description: Accepted for publication in MNRAS May 26, 2017
Observational effects of varying speed of light in quadratic gravity cosmological models
Creators: name: Izadi, Azam
name: Shacker, Shadi Sajedi
name: Olmo, Gonzalo J.
name: Banerjee, Robi
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study different manifestations of the speed of light in theories of gravity where metric and connection are regarded as independent fields. We find that for a generic gravity theory in a frame with locally vanishing affine connection, the usual degeneracy between different manifestations of the speed of light is broken. In particular, the space-time causal structure constant ($c_{ST}$) may become variable in that local frame. For theories of the form $f(R,R^{μν} R_{μν})$, this variation in $c_{ST}$ has an impact on the definition of the luminosity distance (and distance modulus), which can be used to confront the predictions of particular models against Supernovae type Ia (SN Ia) data. We carry out this test for a quadratic gravity model without cosmological constant assuming i) a constant speed of light and ii) a varying speed of light, and find that the latter scenario is favored by the data.
Clustering of Topological Charges in a Kagome Classical Spin Liquid
Creators: name: Mizoguchi, Tomonari
name: Jaubert, Ludovic D. C.
name: Udagawa, Masafumi
Publisher: name: arXiv
Year: 2017
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Fractionalization is a ubiquitous phenomenon in topological states of matter. In this work, we study the collective behavior of fractionalized topological charges and their instabilities, through the $J_1$-$J_2$-$J_3$ Ising model on a kagome lattice, which can be mapped to a model of interacting topological charges under the constraint of Gauss' law. We find that the recombination of topological charges gives rise to a yet unexplored classical spin liquid. This spin liquid is characterized by an extensive residual entropy, as well as the formation of hexamers of same-sign topological charges. The emergence of hexamers is reflected to a half-moon signal in the magnetic structure factor, which provides us a signature of this new spin liquid in neutron-scattering experiments. To study this phase, a worm algorithm has been developed which does not require the usual divergence-free condition.
description: 5 pages, 3 figures for the main text, and 6 pages, 8 figures for Supplemental Material
A Mote in Andromeda's Disk: a Misidentified Periodic AGN Behind M31
Creators: name: Dorn-Wallenstein, Trevor
name: Levesque, Emily M.
name: Ruan, John J.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We identify an object previously thought to be a star in the disk of M31, J0045+41, as a background $z\approx0.215$ AGN seen through a low-absorption region of M31. We present moderate resolution spectroscopy of J0045+41 obtained using GMOS at Gemini-North. The spectrum contains features attributable to the host galaxy. We model the spectrum to estimate the AGN contribution, from which we estimate the luminosity and virial mass of the central engine. Residuals to our fit reveal a blue-shifted component to the broad H$α$ and H$β$ at a relative velocity of $\sim4800$ km s$^{-1}$. We also detect \ion{Na}{1} absorption in the Milky Way restframe. We search for evidence of periodicity using $g$-band photometry from the Palomar Transient Factory and find evidence for multiple periodicities ranging from $\sim80-350$ days. Two of the detected periods are in a 1:4 ratio, which is identical to the predictions of hydrodynamical simulations of binary supermassive black hole systems. If these signals arise due to such a system, J0045+41 is well within the gravitational wave regime. We calculate the time until inspiral due to gravitational radiation, assuming reasonable values of the mass ratio of the two black holes. We discuss the implications of our findings and forthcoming work to identify other such interlopers in the light of upcoming photometric surveys such as the Zwicky Transient Facility (ZTF) or the Large Synoptic Survey Telescope (LSST) projects.
description: 16 pages, 14 figures. Accepted for publication in ApJ
Effective Theory of Non-Adiabatic Quantum Evolution Based on the Quantum Geometric Tensor
Creators: name: Bleu, O.
name: Malpuech, G.
name: Solnyshkov, D. D.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the role of the quantum geometric tensor (QGT) in the evolution of quantum systems. We show that all its components play an important role on the extra phase acquired by a spinor and on the trajectory of an accelerated wavepacket in any realistic finite-duration experiment. While the adiabatic phase is determined by the Berry curvature (the imaginary part of the tensor), the non-adiabaticity is determined by the quantum metric (the real part of the tensor) and allows to determine corrections in the regimes where Landau-Zener approach is inapplicable. The particular case of a planar microcavity in the strong coupling regime allows to extract the QGT components by direct light polarization measurements and to check their effects on the quantum evolution.
Dynamic dissolution template
Creators: name: Group Of Authors
Publisher: name: Zenodo
Year: 2023
Subjects: dynamic dissolution
nanomaterial
HARMLESS
assay
data entry
template
H2020

description: Dynamic dissolution of a test material in lung simulant fluids is monitored via a continuous flow system consisting of a heat cabinet with reservoir, flow-through cells, peristaltic pump set at 2mL/h and external autosampler. Leaching/biopersistence of relevant metals may be estimated after analysis of the samples in time by a suitable analytical method (i.e., ICP-MS)
title: Asymptotic study of Toeplitz determinants with Fisher-Hartwig symbols and their double-scaling limits
Creators: name: Alahmadi, Reham
Publisher: name: University of Reading
Year: 2024

description: This thesis aims to study the asymptotic behavior of Toeplitz determinants Dn(ft(z))
by using the Riemann-Hilbert analysis. We consider the double scaling limits of Toeplitz
determinants with respect to symbol ft(z). This symbol possess m Fisher-Hartwig
singularities when t > 0, and m + 1 if t → 0. We obtain the uniform asymptotics
for Dn(ft(z)) as n → ∞ which is valid for all sufficiently small t in terms of Painlev´e
V function. This study is divided into two parts: We first consider the case when the
seminorm |||β
(t)
||| < 1 for t ≥ 0 and then the case of the Basor-Tracy asymptotics when
|||β
(t)
||| = 1 for some t. The latter case is further divided to the cases, |||β
(t)
||| < 1 for
t > 0 and |||β
(t)
||| = 1 for t > 0.
In the last chapter we present the computation of the magnetization of the 2D Ising
model in the high temperature regime T > Tc (i.e., t < 0) including all the details by
using the Riemann-Hilbert approach and the asymptotics of Toeplitz determinants.
Black Hole Binaries Dynamically Formed in Globular Clusters
Creators: name: Park, Dawoo
name: Kim, Chunglee
name: Lee, Hyung Mok
name: Bae, Yeong-Bok
name: Belczynski, Chris
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate properties of black hole (BH) binaries formed in globular clusters via dynamical processes, using direct N-body simulations. We pay attention to effects of BH mass function on the total mass and mass ratio distributions of BH binaries ejected from clusters. Firstly, we consider BH populations with two different masses in order to learn basic differences from models with single-mass BHs only. Secondly, we consider continuous BH mass functions adapted from recent studies on massive star evolution in a low metallicity environment, where globular clusters are formed. In this work, we consider only binaries that are formed by three-body processes and ignore stellar evolution and primordial binaries for simplicity. Our results imply that most BH binary mergers take place after they get ejected from the cluster. Also, mass ratios of dynamically formed binaries should be close to one or likely to be less than 2:1. Since the binary formation efficiency is larger for higher-mass BHs, it is likely that a BH mass function sampled by gravitational-wave observations would be weighed toward higher masses than the mass function of single BHs for a dynamically formed population. Applying conservative assumptions regarding globular cluster populations such as small BH mass fraction and no primordial binaries, the merger rate of BH binaries originated from globular clusters is estimated to be at least 6.5 per yr per Gpc^3. Actual rate can be up to more than several times of our conservative estimate.
description: 11 pages, 2 tables, 8 figures, accepted for publication in MNRAS after minor revisions
Nonlinear scattering of atomic bright solitons in disorder
Creators: name: Boissé, A
name: Berthet, G
name: Fouché, L
name: Salomon, G
name: Aspect, S
name: Lepoutre, S
name: Bourdel, T
Publisher: name: arXiv
Year: 2017
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We observe nonlinear scattering of 39 K atomic bright solitons launched in a one-dimensional (1D) speckle disorder. We directly compare it with the scattering of non-interacting particles in the same disorder. The atoms in the soliton tend to be collectively either reflected or transmitted, in contrast with the behavior of independent particles, thus demonstrating a clear nonlinear effect in scattering. The observed strong fluctuations in the reflected fraction, between zero and 100%, are interpreted as a consequence of the strong sensitivity of the system to the experimental conditions and in particular to the soliton velocity. This behavior is reproduced in a mean-field framework by Gross-Pitaevskii simulations, and mesoscopic quantum superpositions of the soliton being fully reflected and fully transmitted are not expected for our parameters. We discuss the conditions for observing such superpositions, which would find applications in atom interferometry beyond the standard quantum limit.
Knowledge risks in corporate restructuring. Evidence from a survey
Creators: name: Borgia, Michele
name: Nissi, Eugenia
name: Bello, Annalisa
name: La Torre, Maura
Publisher: name: Economia Aziendale Online -
Year: 2023
Subjects: Corporate restructuring, knowledge management, knowledge risks, mergers and acquisitions, multiple correspondence analysis.

description: This exploratory study aims to verify whether corporate restructuring operations can be exposed to risks related to knowledge management. To answer this Research Question, a questionnaire was administered to gather data from a sample of Italian banks that experienced mergers and acquisitions. Responses showed the bankers’ awareness of the existence of risks associated with knowledge management capable of influencing organizational change success, but also of the possibility that such risks can be effectively identified, managed, and mitigated through constant commitment in protecting and sharing knowledge, during and after the corporate restructuring process. Employing the “multiple correspondence analysis methodology”, demographic characteristics of the respondents with questionnaire responses were associated, with the aim of obtaining, through the construction of maps, a more in-depth picture, also from a visual point of view, of what emerged from the analysis of the questionnaire responses.
description: Economia Aziendale Online -, Vol 14, No 2 (2023): ISSUE 2/2023
Learning molecular energies using localized graph kernels
Creators: name: Ferré, G.
name: Haut, T.
name: Barros, K.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Recent machine learning methods make it possible to model potential energy of atomic configurations with chemical-level accuracy (as calculated from ab-initio calculations) and at speeds suitable for molecular dynam- ics simulation. Best performance is achieved when the known physical constraints are encoded in the machine learning models. For example, the atomic energy is invariant under global translations and rotations, it is also invariant to permutations of same-species atoms. Although simple to state, these symmetries are complicated to encode into machine learning algorithms. In this paper, we present a machine learning approach based on graph theory that naturally incorporates translation, rotation, and permutation symmetries. Specifically, we use a random walk graph kernel to measure the similarity of two adjacency matrices, each of which represents a local atomic environment. This Graph Approximated Energy (GRAPE) approach is flexible and admits many possible extensions. We benchmark a simple version of GRAPE by predicting atomization energies on a standard dataset of organic molecules.
Matrix product states for topological phases with parafermions
Creators: name: Xu, Wen-Tao
name: Zhang, Guang-Ming
Publisher: name: arXiv
Year: 2017
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In the Fock representation, we propose a framework to construct the generalized matrix product states (MPS) for topological phases with $\mathbb{ Z}_{p}$ parafermions. Unlike the $\mathbb{Z}_{2}$ Majorana fermions, the $% \mathbb{Z}_{p}$ parafermions form intrinsically interacting systems. Here we explicitly construct two topologically distinct classes of irreducible $% \mathbb{Z}_{3}$ parafermionic MPS wave functions, characterized by one or two parafermionic zero modes at each end of an open chain. Their corresponding parent Hamiltonians are found as the fixed point models of the single $\mathbb{Z}_{3}$ parafermion chain and two-coupled parafermion chains with $\mathbb{Z}_{3}\times \mathbb{Z}_{3}$ symmetry. Our results thus pave the road to investigate all possible topological phases with $\mathbb{Z}_{p}$ parafermions within the matrix product representation in one dimension.
description: 10 pages, 4 figures, published version
Model of ultrafast demagnetization driven by spin-orbit coupling in a photoexcited antiferromagnetic insulator Cr2O3
Creators: name: Guo, Feng
name: Zhang, Na
name: Jin, Wei
name: Chang, Jun
Publisher: name: arXiv
Year: 2017
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We theoretically study the dynamic time evolution following laser pulse pumping in an antiferromagnetic insulator Cr$_{2}$O$_{3}$. From the photoexcited high-spin quartet states to the long-lived low-spin doublet states, the ultrafast demagnetization processes are investigated by solving the dissipative Schrödinger equation. We find that the demagnetization times are of the order of hundreds of femtosecond, in good agreement with recent experiments. The switching times could be strongly reduced by properly tuning the energy gaps between the multiplet energy levels of Cr$^{3+}$. Furthermore, the relaxation times also depend on the hybridization of atomic orbitals in the first photoexcited state. Our results suggest that the selective manipulation of electronic structure by engineering stress-strain or chemical substitution allows effective control of the magnetic state switching in photoexcited insulating transition-metal oxides.
description: 5 pages, 4 figures
Imaging backscattering in graphene quantum point contacts
Creators: name: Mreńca-Kolasińska, Alina
name: Szafran, Bartłomiej
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study graphene quantum point contacts (QPC) and imaging of the backscattering of the Fermi level wave function by potential introduced by a scanning probe. We consider both etched single-layer QPCs as well as the ones formed by bilayer patches deposited at the sides of the monolayer conducting channel using an atomistic tight binding approach. A computational method is developed to effectively simulate an infinite graphene plane outside the QPC using a computational box of a finite size. We demonstrate that in spite of the Klein phenomenon interference due to the backscattering at a circular n-p junction induced by the probe potential is visible in spatial maps of conductance as functions of the probe position.
description: 8 pages, 14 figures
Additional file 6 of Heterochrony in orthodenticle expression is associated with ommatidial size variation between Drosophila species
Creators: name: Torres-Oliva, Montserrat
name: Buchberger, Elisa
name: Buffry, Alexandra D.
name: Kittelmann, Maike
name: Guerrero, Genoveva
name: Sumner-Rooney, Lauren
name: Gaspar, Pedro
name: Bullinger, Georg C.
name: Jimenez, Javier Figueras
name: Casares, Fernando
name: Arif, Saad
name: Posnien, Nico
name: Nunes, Maria D. S.
name: McGregor, Alistair P.
name: Almudi, Isabel
Publisher: name: figshare
Year: 2025
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 6: Fig. S3. otd expression in 120 hAEL eye imaginal discs. (a) D. mauritiana EAD at 120h. Intensity plots show otd expression intensity measured in the red square area with ImageJ plot intensity tool. (b) D. simulans EAD at 120h. (c) Table and plot showing the area under the curve for each of the discs in which the intensity of otd signal was measured. Black arrowhead: Morphogenetic furrow; oc: ocellar region; dev eye: eye region.
Li Peng
Creators: name: Liu, Jen-Kai
Publisher: name: China aktuell
Year: 2023

description: Li Peng, der am 24.11.87 vom Standigen AusschuB des Nationalen Volkskongresses (NVK) zum amtierenden Ministerprasidenten ernannt wurde und der damit die Nachfolge von Zhao Ziyang in diesem Amt antrat, ist der vierte Ministerprasident der Volksrepublik China nach Zhou Enlai, Hua Guofeng und eben Zhao Ziyang. Der wahrscheinlich im Marz 1988 tagende VII. NVK wird diese Ernennung voraussichtlich bestatigen. Li Peng war seit Juni 1983 stellvertretender Ministerprasident.
description: China aktuell, China aktuell - November 1987
Schismatogobius de Beaufort 1912
Creators: name: Keith, Philippe
name: Lord, Clara
name: Larson, Helen K.
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Perciformes
Gobiidae
Schismatogobius

description: Schismatogobius de Beaufort, 1912
 Diagnosis
Distinguished from other known gobionelline species by having one epural, a dorsal pterygiophore pattern of 3-12210 or 3-22110 (modally the latter), 10+15-16 (modally 16) vertebrae, the first five neural spines sometimes expanded at the tips, two pre-anal pterygiophores, palatine short, ectopterygoid slender and not expanded ventrally, a reduced longitudinal papilla row pattern on the head (one exception), no scales on slender body, head and body almost cylindrical, 16-17 segmented caudal fin rays of which 10-13 are branched, has posterior nasal pores but no anterior interorbital pores, has postorbital but no infraorbital pores, and only the opercular portion of the rear oculoscapular canal is present; males with very large mouths with a brightly coloured lining (red, orange or yellow) and a distinctive banded and mottled body coloration in all species. Species inhabit swift shallow freshwater tropical streams, hiding among gravel, pebbles and coarse sand.
description: Published as part of Keith, Philippe, Lord, Clara & Larson, Helen K., 2017, Review of Schismatogobius (Gobiidae) from Papua New Guinea to Samoa, with description of seven new species, pp. 45-66 in Cybium 41 (1) on page 48, DOI: 10.26028/cybium/2017-411-005, http://zenodo.org/record/13485593
On the uniqueness property of forking in abstract elementary classes
Creators: name: Vasey, Sebastien
Publisher: name: arXiv
Year: 2016
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 03C48 (Primary), 03C45, 03C52, 03C55 (Secondary)

description: In the setup of abstract elementary classes satisfying a local version of superstability, we prove the uniqueness property for $μ$-forking, a certain independence notion arising from splitting. This had been a longstanding technical difficulty when constructing forking-like notions in this setup. As an application, we show that the two versions of forking symmetry appearing in the literature (the one defined by Shelah for good frames and the one defined by VanDieren for splitting) are equivalent.
description: 10 pages
FRAS assay template
Creators: name: Group Of Authors
Publisher: name: Zenodo
Year: 2023
Subjects: FRAS
assay
template
data entry
nanomaterial
H2020
HARMLESS

description: Ferric reducing ability of serum (FRAS) assay template. FRAS assay is an indirect assay, based on the principle of absorbance change due to reduction of an Fe3+ complex to Fe2+ complex, by the residual antioxidants in a sample, pre-incubated with a nanomaterial.The absorbance change is correlated to the antioxidant capacity of the serum: the more antioxidants species, the more intense the blue colour. Antioxidants may be suppressed by free radicals produced by nanomaterials, leading to oxidative damage, shown by a reduced blue colour in the assay.
MPEC 2023-R142 : 2023 RY4
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 RY4

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Investigating the topological structure of quenched lattice QCD with overlap fermions by using multi-probing approximation
Creators: name: Zou, You-Hao
name: Zhang, Jian-Bo
name: Xiong, Guang-Yi
name: Chen, Ying
name: Liu, Chuan
name: Liu, Yu-Bin
name: Ma, Jian-Ping
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: The topological charge density and topological susceptibility are determined by multi-probing approximation using overlap fermions in quenched SU(3) gauge theory. Then we investigate the topological structure of the quenched QCD vacuum, and compare it with results from the all-scale topological density, the results are consistent. Random permuted topological charge density is used to check whether these structures represent underlying ordered properties. Pseudoscalar glueball mass is extracted from the two-point correlation function of the topological charge density. We study $3$ ensembles of different lattice spacing $a$ with the same lattice volume $16^{3}\times32$, the results are compatible with the results of all-scale topological charge density, and the topological structures revealed by multi-probing are much closer to all-scale topological charge density than that by eigenmode expansion.
description: 12 pages,34 figures
Particle Model Predictive Control: Tractable Stochastic Nonlinear Output-Feedback MPC
Creators: name: Sehr, Martin A.
name: Bitmead, Robert R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: We combine conditional state density construction with an extension of the Scenario Approach for stochastic Model Predictive Control to nonlinear systems to yield a novel particle-based formulation of stochastic nonlinear output-feedback Model Predictive Control. Conditional densities given noisy measurement data are propagated via the Particle Filter as an approximate implementation of the Bayesian Filter. This enables a particle-based representation of the conditional state density, or information state, which naturally merges with scenario generation from the current system state. This approach attempts to address the computational tractability questions of general nonlinear stochastic optimal control. The Particle Filter and the Scenario Approach are shown to be fully compatible and -- based on the time- and measurement-update stages of the Particle Filter -- incorporated into the optimization over future control sequences. A numerical example is presented and examined for the dependence of solution and computational burden on the sampling configurations of the densities, scenario generation and the optimization horizon.
description: 6 pages, 5 figures, to appear in proc. 20th IFAC World Congress
Atomic Data Revisions for Transitions Relevant to Observations of Interstellar, Circumgalactic, and Intergalactic Matter
Creators: name: Cashman, Frances H.
name: Kulkarni, Varsha P.
name: Kisielius, Romas
name: Ferland, Gary J.
name: Bogdanovich, Pavel
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Measurements of element abundances in galaxies from astrophysical spectroscopy depend sensitively on the atomic data used. With the goal of making the latest atomic data accessible to the community, we present a compilation of selected atomic data for resonant absorption lines at wavelengths longward of 911.753 Å (the \ion{H}{1} Lyman limit), for key heavy elements (heavier than atomic number 5) of astrophysical interest. In particular, we focus on the transitions of those ions that have been observed in the Milky Way interstellar medium (ISM), the circumgalactic medium (CGM) of the Milky Way and/or other galaxies, and the intergalactic medium (IGM). We provide wavelengths, oscillator strengths, associated accuracy grades, and references to the oscillator strength determinations. We also attempt to compare and assess the recent oscillator strength determinations. For about 22\% of the lines that have updated oscillator strength values, the differences between the former values and the updated ones are $\gtrsim$~0.1 dex. Our compilation will be a useful resource for absorption line studies of the ISM, as well as studies of the CGM and IGM traced by sight lines to quasars and gamma-ray bursts. Studies (including those enabled by future generations of extremely large telescopes) of absorption by galaxies against the light of background galaxies will also benefit from our compilation.
description: Final version published in the Astrophysical Journal Supplement Series. Includes 1 machine-readable table
Quantum Mechanics with a non-zero quantum correlation time
Creators: name: Bouchaud, Jean-Philippe
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We propose an extension of Quantum Mechanics based on the idea that the underlying "quantum noise" has a non-zero, albeit very small, correlation time $τ_c$. The standard (non-relativistic) Schrodinger equation is recovered to zeroth order in $τ_c$, and the first correction to energy levels is computed. Some consequences are discussed, in particular the violation of Heisenberg's uncertainty principle and the restoration of locality at short times.
description: Short note (6 pages). Sign typos corrected
Spectroscopic study of the elusive globular cluster ESO452-SC11 and its surroundings
Creators: name: Koch, Andreas
name: Hansen, Camilla Juul
name: Kunder, Andrea
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Globular clusters (GCs) are amongst the oldest objects in the Galaxy and play a pivotal role in deciphering its early history. We present the first spectroscopic study of the GC ESO452-SC11 using the AAOmega spectrograph at medium resolution. Given the sparsity of this object and high degree of foreground contamination due to its location toward the bulge, few details are known for this cluster: there is no consensus of its age, metallicity, or its association with the disk or bulge. We identify 5 members based on radial velocity, metallicity, and position within the GC. Using spectral synthesis, accurate abundances of Fe and several $α$-, Fe-peak, neutron-capture elements (Si,Ca,Ti,Cr,Co,Ni,Sr,Eu) were measured. Two of the 5 cluster candidates are likely non-members, as they have deviant Fe abundances and [$α$/Fe] ratios. The mean radial velocity is 19$\pm$2 km s$^{-1}$ with a low dispersion of 2.8$\pm$3.4 km s$^{-1}$, in line with its low mass. The mean Fe-abundance from spectral fitting is $-0.88\pm0.03$, with a spread driven by observational errors. The $α$-elements of the GC candidates are marginally lower than expected for the bulge at similar metallicities. As spectra of hundreds of stars were collected in a 2 degree field around ESO452-SC11, detailed abundances in the surrounding field were measured. Most non-members have higher [$α$/Fe] ratios, typical of the nearby bulge population. Stars with measured Fe-peak abundances show a large scatter around Solar values, though with large uncertainties. Our study provides the first systematic measurement of Sr in a Galactic bulge GC. The Eu and Sr abundances of the GC candidates are consistent with a disk or bulge association. Our calculations place ESO452 on an elliptical orbit in the central 3 kpc of the bulge. We find no evidence of extratidal stars in our data. (Abridged)
description: 10 pages, 13 figures, accepted for publication in Astronomy & Astrophysics
Entanglement shadows in LLM geometries
Creators: name: Balasubramanian, Vijay
name: Lawrence, Albion
name: Rolph, Andrew
name: Ross, Simon
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We find a new example of an asymptotically $AdS_5 \times S^5$ geometry which has an entanglement shadow: that is, a region of spacetime which no Ryu-Takayanagi minimal surface enters. Our example is a particular case of the supersymmetric LLM geometries. Our results illustrate how minimal surfaces, which holographically geometrize entanglement entropy, can fail to probe the whole of spacetime, posing a challenge for attempts to directly reconstruct holographic geometries from the entanglement entropies of the dual field theory. We also comment on the relation to previous investigations of minimal surfaces localised in the $S^5$ factor of AdS$_5 \times S^5$.
description: 16 pages of text, 19 pages total, 3 figures. v2: References added
Critical scaling in hidden state inference for linear Langevin dynamics
Creators: name: Bravi, Barbara
name: Sollich, Peter
Publisher: name: arXiv
Year: 2016
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider the problem of inferring the dynamics of unknown (i.e. hidden) nodes from a set of observed trajectories and study analytically the average prediction error and the typical relaxation time of correlations between errors. We focus on a stochastic linear dynamics of continuous degrees of freedom interacting via random Gaussian couplings in the infinite network size limit. The expected error on the hidden time courses can be found as the equal-time hidden-to-hidden covariance of the probability distribution conditioned on observations. In the stationary regime, we analyze the phase diagram in the space of relevant parameters, namely the ratio between the numbers of observed and hidden nodes, the degree of symmetry of the interactions and the amplitudes of the hidden-to-hidden and hidden-to-observed couplings relative to the decay constant of the internal hidden dynamics. In particular, we identify critical regions in parameter space where the relaxation time and the inference error diverge, and determine the corresponding scaling behaviour.
description: 34 pages, 10 figures. Formerly part of arXiv:1603.05538
Acoustic metasurfaces for scattering-free anomalous reflection and refraction
Creators: name: Diaz-Rubio, Ana
name: Tretyakov, Sergei A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: Manipulation of acoustic wavefronts by thin and planar devices, known as metasurfaces, has been extensively studied, in view of many important applications. Reflective and refractive metasurfaces are designed using the generalized reflection and Snell's laws, which tell that local phase shifts at the metasurface supply extra momentum to the wave, presumably allowing arbitrary control of reflected or transmitted waves. However, as it has been recently shown for the electromagnetic counterpart, conventional metasurfaces based on the generalized laws of reflection and refraction have important drawbacks in terms of power efficiency. This work presents a new synthesis method of acoustic metasurfaces for anomalous reflection and transmission that overcomes the fundamental limitations of conventional designs, allowing full control of acoustic energy flow. The results show that different mechanisms are necessary in the reflection and transmission scenarios for ensuring perfect performance. Metasurfaces for anomalous reflection require non-local response, which allows energy channeling along the metasurface. On other hand, for perfect manipulation of anomalously transmitted waves, local and non-symmetric response is required. These conclusions are interpreted through appropriate surface impedance models which are used to find possible physical implementations of perfect metasurfaces in each scenario. We hope that this advance in the design of acoustic metasurfaces opens new avenues not only for perfect anomalous reflection and transmission but also for realizing more complex functionalities, such as focusing, self-bending or vortex generation.
description: 20 pages, 9 figures
Steep Decay of GRB X-ray Flares: the Result of Anisotropic Synchrotron Radiation
Creators: name: Geng, Jin-Jun
name: Huang, Yong-Feng
name: Dai, Zi-Gao
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: When an emitting spherical shell with a constant Lorentz factor turns off emission abruptly at some radius, its high-latitude emission would obey the relation of $\hatα$ (the temporal index) = $2 + \hatβ$ (the spectral index). However, this relation is violated by the X-ray fares in some gamma-ray bursts (GRBs), whose $\hatα$ is much more steeper. We show that the synchrotron radiation should be anisotropic when the angular distribution of accelerated electrons has preferable orientation, and this anisotropy would naturally lead to the steeper decay for the high-latitude emission if the the intrinsic emission is limb-brightened. We use our simple toy model to reproduce the temporal and the spectral evolution of the X-ray flares. We show that our model can well interpret the steep decay of the X-ray flares in the three GRBs selected as example. Recent simulations on particle acceleration may support the specific anisotropic distribution of the electrons adopted in our work. Reversely, confirmation of the anisotropy in the radiation would give meaningful clues to the details of electron acceleration in the emitting region.
description: 12 pages, 1 figure, ApJL accepted
Pre-trained μSplit
Creators: name: Ashesh Ashesh
name: Krull, Alexander
name: Di Sante, Moises
name: Pasqualini, Francesco Silvio
name: Jug, Florian
Publisher: name: Zenodo
Year: 2023
Subjects: μSplit
Fluorescence microscopy
Hierarchical Variational Autoencoders
Image decomposition
bioimage.io

description: It contains pre-trained Deep-LC and Lean-LC variants of μSplit meta-architecture. Modified Hierarchical Variational Autoencoder architecture is used. Refer to the paper "μSplit: efficient image decomposition for microscopy data", https://arxiv.org/abs/2211.12872 for more details. The associated code hosted at https://github.com/juglab/uSplit should be used. Evaluation.ipynb computes the mean and stdev from the data and uses that to normalize the input before feeding it into the model.