cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Standardized marker size and line width helps reduce distorted presentation of graphs to readers
Creators: name: Ng, Wenfa
Publisher: name: figshare
Year: 2018
Subjects: Education

description: Data are typically presented in many forms such as tables and graphs, but the X-Y scatter plot remains commonly used for two-dimensional depiction of data. However, non standardization of marker size and line width across datasets in the graph would likely emphasize data with larger marker size and line width as these captures the readers’ attention more. This would likely lead to misinterpretation of data or arrival at the wrong or author’s conclusion, without an opportunity for a proper assessment of all the trends displayed by the dataset. Hence, it is critical to display all dataset in a graph with standardized marker size and line width, which allows the underlying trend of the dataset to emanate in the graph for correct interpretation by the readers without interference from distorted data.
Reflected Brownian motion on simple nested fractals
Creators: name: Kaleta, Kamil
name: Olszewski, Mariusz
name: Pietruska-Pałuba, Katarzyna
Publisher: name: arXiv
Year: 2018
Subjects: subject: Probability (math.PR)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: Primary: 60J60, 28A80, Secondary: 60J25

description: We prove the existence of the reflected diffusion on a complex of an arbitrary size for a large class of planar simple nested fractals. Such a process is obtained as a folding projection of the free Brownian motion from the unbounded fractal. We give sharp necessary geometric conditions on the fractal under which this projection can be well defined. They are illustrated by various specific examples. We first construct a proper version of the transition probability densities for reflected process and we prove that it is a continuous, bounded and symmetric function which satisfies the Chapman-Kolmogorov equations. These provide us with further regularity properties of the reflected process such us Markov, Feller and strong Feller property
description: 35 pages, 15 figures
Temporally resolved Type III solar radio bursts in the frequency range 3-13 MHz
Creators: name: Vecchio, Antonio
name: Maksimovic, Milan
name: Chrysaphi, Nicolina
name: Kontar, Eduard P.
name: Krupar, Vratislav
Publisher: name: arXiv
Year: 2024
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Radio observations from space allow to characterize solar radio bursts below the ionospheric cutoff, which are otherwise inaccessible, but suffer from low, insufficient temporal resolution. In this Letter we present novel, high-temporal resolution observations of type III solar radio bursts in the range $3-13$ MHz. A dedicated configuration of the Radio and Plasma Waves (RPW) High Frequency Receiver (HFR) on the Solar Orbiter mission, allowing for a temporal resolution as high as $\sim0.07$s (up to 2 orders of magnitude better than any other spacecraft measurements), provides for the very first time resolved measurements of the typical decay time values in this frequency range. The comparison of data with different time resolutions and acquired at different radial distances indicates that discrepancies with decay time values provided in previous studies are only due to the insufficient time resolution not allowing to accurately characterize decay times in this frequency range. The statistical analysis on a large sample of $\sim500$ type III radio bursts shows a power low decay time trend with a spectral index of $-0.75\pm0.03$ when the median values for each frequency are considered. When these results are combined with previous observations, referring to frequencies outside the considered range, a spectral index of $-1.00\pm0.01$ is found in the range $\sim0.05-300$ MHz, compatible with the presence of radio-wave scattering between 1 and 100 R$_{Sun}$.
Effects of tidal interactions on the gas flows of elliptical galaxies
Creators: name: D'Ercole, A.
name: Recchi, S.
name: Ciotti, L.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: During a Hubble time, cluster galaxies may undergo several mutual encounters close enough to gravitationally perturb their hot, X-ray emitting gas flows. We ran several 2D, time dependent hydrodynamical models to investigate the effects of such perturbations on the gas flow inside elliptical galaxies. In particular, we studied in detail the modifications occurring in the scenario proposed by D'Ercole et al. (1989), in which the galactic interstellar medium produced by the aging galactic stellar population, is heated by SNIa at a decreasing rate. We find that, although the tidal interaction in our models lasts less than 1 Gyr, its effect extends over several Gyrs. The tidally induced turbulent flows create dense filaments which cool quickly and accrete onto the galactic center, producing large spikes in the global Lx. Once this mechanism starts, it is fed by gravity and amplified by SNIa. In cooling flow models without supernovae the amplitude of the Lx fluctuations due to the tidal interaction is substantially reduced. We conclude that, if SNIa significantly contribute to the energetics of the gas flows in ellipticals, then the observed spread in the Lx-Lb diagram may be caused, at least in part, by this mechanism. On the contrary, tidal interactions cannot be responsible for the observed spread if the pure cooling flow scenario applies (abridged).
description: 21 pages, 8 figures, to be published in ApJ (main journal)
Study of temporal quantum correlations in decohering B and K meson systems
Creators: name: Naikoo, Javid
name: Alok, Ashutosh Kumar
name: Banerjee, Subhashish
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this work we study temporal quantum correlations, quantified by Leggett-Garg (LG) and LG-type inequalities, in the $B$ and $K$ meson systems. We use the tools of open quantum systems to incorporate the effect of decoherence which is quantified by a single phenomenological parameter. The effect of $CP$ violation is also included in our analysis. We find that the LG inequality is violated for both $B$ and $K$ meson systems, the violation being most prominent in the case of $K$ mesons and least for $B_s$ system. Since the systems with no coherence do not violate LGI, incorporating \textit{decoherence} is expected to decrease the extent of violation of LGI and is clearly brought out in our results. We show that the expression for the LG functions depends upon an additional term, apart from the experimentally measurable meson transition probabilities. This term vanishes in the limit of zero decoherence. On the other hand, the LG-type parameter can be directly expressed in terms of transition probabilities, making it a more appropriate observable for studying temporal quantum correlations in neutral meson systems.
description: 9 pages, 7 figures
Possibility of $m_t < M_W + m_b$ for SUSY-type of Two Higgs Doublet Model
Creators: name: Hou, Wei-Shu
name: Tsai, Ern-Bin
name: Geng, Chao-Qiang
name: Turcotte, Paul
Publisher: name: arXiv
Year: 1994
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Allowing for realistic uncertainties in input parameters, we demonstrate that the present CLEO limit of $5.4\times 10^{-4}$ for inclusive $b\to sγ$ decay does not yet fully exclude the $t\to bH^+$ decay possibility in supersymmetric type of two Higgs doublet models. Combined with direct search for $t\to bH^+$ via $H^+\to τ^+ν$ at the Tevatron, we conclude that $\tanβ\sim 1$ is the ``allowed" window for $m_{H^+} < m_t < M_W$. The possibility becomes excluded, however, {\it if} the CLEO limit is pushed below $4\times 10^{-4}$.
description: 11 pages + 3 Figures (not included), ReVTeX, NTUTH-94-15 and NHCU-HEP-94-16
A New Dimensionally Reduced Effective Action for QCD at High Temperature
Creators: name: Chapman, Scott
Publisher: name: arXiv
Year: 1994
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: New terms are derived for the three-dimensional effective action of the static modes of pure gauge SU(N) at high temperature. In previous works, effective vertices have been obtained by evaluating diagrams involving 2, 3 or 4 external static gluons with one internal nonstatic loop. I take a somewhat different approach by making a covariant derivative expansion of the one loop effective action for the static modes, keeping all terms involving up to six covariant derivatives. The resulting effective action is manifestly invariant under spatially dependent gauge transformations and contains new 5- and 6-point effective vertices.
description: 11 pages, TPR-94-8
Does the Abiotic Formation of Oligopeptides on TiO2 Nanoparticles Require Special Catalytic Sites? Apparently Not
Creators: name: Fabbiani, Marco
name: Tabacchi, Gloria
name: Fois, Ettore
name: Martra, Gianmario
Publisher: name: figshare
Year: 2019
Subjects: subject: 30301 Chemical Characterisation of Materials
subject: FOS: Chemical sciences
subject: 30601 Catalysis and Mechanisms of Reactions
subject: 30201 Bioinorganic Chemistry
subject: 30401 Biologically Active Molecules
subject: 30603 Colloid and Surface Chemistry
subject: Inorganic Chemistry
subject: 30299 Inorganic Chemistry not elsewhere classified
subject: 30203 Inorganic Green Chemistry
subject: Molecular Physics
subject: 30699 Physical Chemistry not elsewhere classified
subject: 30304 Physical Chemistry of Materials
subject: 30305 Polymerisation Mechanisms
subject: 30406 Proteins and Peptides
subject: 30206 Solid State Chemistry
subject: Supramolecular Chemistry
subject: 30207 Transition Metal Chemistry
subject: 100708 Nanomaterials
subject: FOS: Nanotechnology
subject: 100799 Nanotechnology not elsewhere classified

description: Preprint version of the paper:Does the Abiotic Formation of Oligopeptides on TiO2Nanoparticles Require Special Catalytic Sites? Apparently Notby:Marco Fabbiani, Marco Pazzi, Marco Vincenti, Gloria Tabacchi, Ettore Fois, Gianmario Martra

Published on 1st August 2018 in:Journal of Nanoscience and Nanotechnology, 2018, 18, 5854-5857

The oligomerization of non-activated amino acids catalyzed by nanostrucrured mineral oxide surfaces holds promises as a sustainable route for the industrial production of polypeptides. To analyze the influence of the surface type on the catalytic process, we performed, via a mild Chemical Vapor Deposition approach, the oligomerization of Glycine on two samples of TiO2 nanoparticles characterized by different relative amounts of defective surface terminations. Based on infrared spectroscopy and mass spectrometry data, we show herein that the formation of peptide bonds on titania nanoparticles does not require highly energetic surface terminations, but can occur also on the most abundant and thermodynamically most stable {101} facets of nanosized anatase.
Lyman Alpha Imaging of a Proto-Cluster Region at =3.09
Creators: name: Steidel, C. C.
name: Adelberger, K. L.
name: Shapley, A. E.
name: Pettini, M.
name: Dickinson, M.
name: Giavalisco, M.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present very deep imaging observations, through a narrow-band filter tuned to Lyman alpha at , of a volume containing a significant over-density of galaxies at this redshift previously discovered in our survey for continuum-selected Lyman break galaxies (LBGs). The new observations are used in conjunction with our spectroscopic results on LBGs to compare the effectiveness of continuum and emission line searches for star forming galaxies at high redshift, and to extend the search for members of the structure at = 3.09 to much fainter continuum luminosities. We find that only 20-25 percent of all galaxies at a given UV continuum luminosity would be flagged as narrow-band excess objects subject to the typical limits W_Lya > 80 Angstroms in the observed frame. The density enhancement of strong Lyman alpha emitters in this field is consistent with that inferred from the analysis of the spectroscopic Lyman break galaxy sample in the same region (6+/-1), but extends to continuum luminosities up to 2 magnitudes fainter. There is no evidence for a significantly higher fraction of large Lyman alpha line equivalent widths at faint continuum luminosities. By combining the 24 spectroscopic members of the z=3.09 ``spike'' with the narrow-band candidates, we are able to produce a sample of 162 objects which are either known or likely members of this large structure. We have also discovered two extremely large and diffuse Lyman alpha emitting ``blobs'', which have physical extents >100/h kpc and Lyman alpha line fluxes 20-40 times larger than the typical line emitters at the same redshifts in the field. The possible nature of the ``blobs'' is discussed. (abstract abridged)
description: To appear in the ApJ, 31 pages, aastex
Benchmark of the GEF model for fission-fragment yields over an enlarged range
Creators: name: Schmitt, C.
name: Schmidt, K. -H.
name: Jurado, B.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The GEneral description of Fission observables (GEF) model was developed to produce fission related nuclear data which are of crucial importance for basic and applied nuclear physics. The investigation of the performance of the GEF code is here extended to a region in fissioning-system mass, charge, excitation energy and angular momentum, as well as to new observables, that could not be benchmarked in detail so far. The work focuses on fragment mass and isotopic distributions, benefiting from recent innovative measurements. The approach reveals a high degree of consistency and provides a very reasonable description of the new data. The physics behind specific discrepancies is discussed, and hints to improve on are given. Comparison of the calculation with experiment permits to highlight the influence of the system intrinsic properties, their interplay, and the importance of experimental aspects, namely instrumental resolution. All together points to the necessity of as selective and accurate as possible experimental data, for proper unfolding of the different influences and robust interpretation of the measurement. The GEF code has become a widely used tool for this purpose
description: 15 pages, 11 figures
Additional file 4 of The independent and joint association of accelerometer-measured physical activity and sedentary time with dementia: a cohort study in the UK Biobank
Creators: name: Zhong, Qi
name: Zhou, Rui
name: Huang, Yi-Ning
name: Chen, Hao-Wen
name: Liu, Hua-Min
name: Huang, Zhiwei
name: Yuan, Zelin
name: Wu, Keyi
name: Cao, Bi-Fei
name: Liu, Kuan
name: Fan, Wei-Dong
name: Liang, Yong-Qi
name: Wu, Xian-Bo
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Science Policy
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Mental Health
subject: Virology

description: Additional file 4. Codes used in the UK Biobank study to identify dementia cases.
Does the Abiotic Formation of Oligopeptides on TiO2 Nanoparticles Require Special Catalytic Sites? Apparently Not
Creators: name: Tabacchi, Gloria
name: Fois, Ettore
Publisher: name: figshare
Year: 2018
Subjects: subject: 30301 Chemical Characterisation of Materials
subject: FOS: Chemical sciences
subject: 30601 Catalysis and Mechanisms of Reactions
subject: 30201 Bioinorganic Chemistry
subject: 30401 Biologically Active Molecules
subject: 30603 Colloid and Surface Chemistry
subject: Inorganic Chemistry
subject: 30299 Inorganic Chemistry not elsewhere classified
subject: 30203 Inorganic Green Chemistry
subject: Molecular Physics
subject: 30699 Physical Chemistry not elsewhere classified
subject: 30304 Physical Chemistry of Materials
subject: 30305 Polymerisation Mechanisms
subject: 30406 Proteins and Peptides
subject: 30206 Solid State Chemistry
subject: Supramolecular Chemistry
subject: 30207 Transition Metal Chemistry
subject: 100708 Nanomaterials
subject: FOS: Nanotechnology
subject: 100799 Nanotechnology not elsewhere classified

description: Preprint version of the paper:Does the Abiotic Formation of Oligopeptides on TiO2Nanoparticles Require Special Catalytic Sites? Apparently NotPublished on 1st August 2018 in:Journal of Nanoscience and Nanotechnology, 2018, 18, 5854-5857

The oligomerization of non-activated amino acids catalyzed by nanostrucrured mineral oxide surfaces holds promises as a sustainable route for the industrial production of polypeptides. To analyze the influence of the surface type on the catalytic process, we performed, via a mild Chemical Vapor Deposition approach, the oligomerization of Glycine on two samples of TiO2 nanoparticles characterized by different relative amounts of defective surface terminations. Based on infrared spectroscopy and mass spectrometry data, we show herein that the formation of peptide bonds on titania nanoparticles does not require highly energetic surface terminations, but can occur also on the most abundant and thermodynamically most stable {101} facets of nanosized anatase.
Shell model versus liquid drop model for strangelets
Creators: name: Madsen, Jes
Publisher: name: arXiv
Year: 1994
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: An ansatz for the curvature contribution to the density of states for massive quarks in a bag is given and shown to reproduce exact mode-filling calculations. A mass-formula for spherical lumps of 3-flavor quark matter is derived self-consistently from an asymptotic expansion within the MIT bag model, taking into account bulk, surface, and curvature contributions. Shell model calculations are performed for a variety of strange quark masses and bag constants, and the results shown to match nicely with the asymptotic expansion.
description: 9 pages, REVTeX, Phys.Rev.D (1 September 1994, in press). 3 postscript figures attached
Weyl semimetal to metal phase transitions driven by quasiperiodic potentials
Creators: name: Pixley, J. H.
name: Wilson, Justin H.
name: Huse, David A.
name: Gopalakrishnan, Sarang
Publisher: name: arXiv
Year: 2018
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We explore the stability of three-dimensional Weyl and Dirac semimetals subject to quasiperiodic potentials. We present numerical evidence that the semimetal is stable for weak quasiperiodic potentials, despite being unstable for weak random potentials. As the quasiperiodic potential strength increases, the semimetal transitions to a metal, then to an "inverted" semimetal, and then finally to a metal again. The semimetal and metal are distinguished by the density of states at the Weyl point, as well as by level statistics, transport, and the momentum-space structure of eigenstates near the Weyl point. The critical properties of the transitions in quasiperiodic systems differ from those in random systems: we do not find a clear critical scaling regime in energy; instead, at the quasiperiodic transitions, the density of states appears to jump abruptly (and discontinuously to within our resolution).
description: 6 pages, 4 figures; supplemental 5 pages, 9 figures
Kramers degeneracy and relaxation in vanadium, niobium and tantalum clusters
Creators: name: Diaz-Bachs, A.
name: Katsnelson, M. I.
name: Kirilyuk, A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: FOS: Physical sciences

description: In this work we use magnetic deflection of V, Nb, and Ta atomic clusters to measure their magnetic moments. While only a few of the clusters show weak magnetism, all odd-numbered clusters deflect due to the presence of a single unpaired electron. Surprisingly, for majority of V and Nb clusters an atomic-like behavior is found, which is a direct indication of the absence of spin-lattice interaction. This is in agreement with Kramers degeneracy theorem for systems with a half-integer spin. This purely quantum phenomenon is surprisingly observed for large systems of more than 20 atoms, and also indicates various quantum relaxation processes, via Raman two-phonon and Orbach high-spin mechanisms. In heavier, Ta clusters, the relaxation is always present, probably due to larger masses and thus lower phonon energies, as well as increased spin-orbit coupling.
description: 7 pages, 5 figures
The Mass of the Centaurus A Group of Galaxies
Creators: name: Bergh, Sidney van den
Publisher: name: arXiv
Year: 1999
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The mass M, and the radius R_h, of the Centaurus A group are estimated from the positions and radial velocities of 30 probable cluster members. For an assumed distance of 3.9 Mpc it is found that R_h \sim 640 kpc. The velocity dispersion in the Cen A group is 114 \pm 21 km/s. From this value, and R_h = 640 kpc, the virial theorem yields a total mass of 1.4 \times 10^{13} M_{\sun} for the Cen A group. The projected mass method gives a mass of 1.8 \times 10^{13} M_{\sun}. These values suggest that the Cen A group is about seven times as massive as the Local Group. The Cen A mass-to-light ratio is found to be M/L_B = 155-200 in solar units. The cluster has a zero-velocity radius R_0 = 2.3 Mpc.
description: 8 pages, 1 figure, in LaTeX format; to appear in the Astronomical Journal in January 2000
Mars' Growth Stunted by an Early Giant Planet Instability
Creators: name: Clement, Matthew S.
name: Kaib, Nathan A.
name: Raymond, Sean N.
name: Walsh, Kevin J.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Many dynamical aspects of the solar system can be explained by the outer planets experiencing a period of orbital instability sometimes called the Nice Model. Though often correlated with a perceived delayed spike in the lunar cratering record known as the Late Heavy Bombardment (LHB), recent work suggests that this event may have occurred much earlier; perhaps during the epoch of terrestrial planet formation. While current simulations of terrestrial accretion can reproduce many observed qualities of the solar system, replicating the small mass of Mars requires modification to standard planet formation models. Here we use 800 dynamical simulations to show that an early instability in the outer solar system strongly influences terrestrial planet formation and regularly yields properly sized Mars analogs. Our most successful outcomes occur when the terrestrial planets evolve an additional 1-10 million years (Myr) following the dispersal of the gas disk, before the onset of the giant planet instability. In these simulations, accretion has begun in the Mars region before the instability, but the dynamical perturbation induced by the giant planets' scattering removes large embryos from Mars' vicinity. Large embryos are either ejected or scattered inward toward Earth and Venus (in some cases to deliver water), and Mars is left behind as a stranded embryo. An early giant planet instability can thus replicate both the inner and outer solar system in a single model.
description: 18 pages, 9 figures, accepted for publication in Icarus
Supplemental Material
Creators: name: Naraghi, Sepehr Mohajeri
name: Senay Simsek
name: Kumar, Ajay
name: S.M. Hisam Al Rabbi
name: Alamri, Mohammed S.
name: Elias, Elias M.
name: Mergoum, Mohamed
Publisher: name: figshare
Year: 2018
Subjects: subject: 70305 Crop and Pasture Improvement (Selection and Breeding)
subject: FOS: Agriculture, forestry and fisheries

description: File S1 contains supplementary tables 1, 2, and 3File S2 contains genotyping data, linkage map, and phenotyping data
Does the Abiotic Formation of Oligopeptides on TiO2 Nanoparticles Require Special Catalytic Sites? Apparently Not
Creators: name: Tabacchi, Gloria
Publisher: name: figshare
Year: 2018
Subjects: subject: 30301 Chemical Characterisation of Materials
subject: FOS: Chemical sciences
subject: 30601 Catalysis and Mechanisms of Reactions
subject: 30201 Bioinorganic Chemistry
subject: 30401 Biologically Active Molecules
subject: 30603 Colloid and Surface Chemistry
subject: Inorganic Chemistry
subject: 30299 Inorganic Chemistry not elsewhere classified
subject: 30203 Inorganic Green Chemistry
subject: Molecular Physics
subject: 30699 Physical Chemistry not elsewhere classified
subject: 30304 Physical Chemistry of Materials
subject: 30305 Polymerisation Mechanisms
subject: 30406 Proteins and Peptides
subject: 30206 Solid State Chemistry
subject: Supramolecular Chemistry
subject: 30207 Transition Metal Chemistry
subject: 100708 Nanomaterials
subject: FOS: Nanotechnology
subject: 100799 Nanotechnology not elsewhere classified

description: Preprint version of the paper:Does the Abiotic Formation of Oligopeptides on TiO2Nanoparticles Require Special Catalytic Sites? Apparently Notby:Marco Fabbiani, Marco Pazzi, Marco Vincenti, Gloria Tabacchi, Ettore Fois, Gianmario Martra

Published on 1st August 2018 in:Journal of Nanoscience and Nanotechnology, 2018, 18, 5854-5857

The oligomerization of non-activated amino acids catalyzed by nanostrucrured mineral oxide surfaces holds promises as a sustainable route for the industrial production of polypeptides. To analyze the influence of the surface type on the catalytic process, we performed, via a mild Chemical Vapor Deposition approach, the oligomerization of Glycine on two samples of TiO2 nanoparticles characterized by different relative amounts of defective surface terminations. Based on infrared spectroscopy and mass spectrometry data, we show herein that the formation of peptide bonds on titania nanoparticles does not require highly energetic surface terminations, but can occur also on the most abundant and thermodynamically most stable {101} facets of nanosized anatase.
Statistical properties of microphase and bubbly phase-separated active fluids
Creators: name: Fausti, Giordano
name: Nardini, Cesare
name: Cates, Michael E
Publisher: name: arXiv
Year: 2024
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: In phase-separated active fluids, the Ostwald process can go into reverse leading to either microphase separation or bubbly phase separation. We show that the latter is formed of two macroscopic regions that are occupied by the homogeneous fluid and by the microphase separated one. Within the microphase separated fluid, the relative rate of the Ostwald process, coalescence, and nucleation determines whether the size distribution of mesoscopic domains is narrowly peaked or displays a broad range of sizes before attaining a cutoff independent of system-size. Our results are obtained via large-scale simulations of a minimal field theory for active phase separation and reproduced by an effective model in which the degrees of freedom are the locations and sizes of the microphase-separated domains.
High redshift extremely red quasars in X-rays
Creators: name: Goulding, Andy D.
name: Zakamska, Nadia L.
name: Alexandroff, Rachael M.
name: Assef, Roberto J.
name: Banerji, Manda
name: Hamann, Fred
name: Wylezalek, Dominika
name: Brandt, William N.
name: Greene, Jenny E.
name: Lansbury, George B.
name: Paris, Isabelle
name: Richards, Gordon
name: Stern, Daniel
name: Strauss, Michael A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Quasars may have played a key role in limiting the stellar mass of massive galaxies. Identifying those quasars in the process of removing star formation fuel from their hosts is an exciting ongoing challenge in extragalactic astronomy. In this paper we present X-ray observations of eleven extremely red quasars (ERQs) with $L_{\rm bol}\sim 10^{47}$ erg s$^{-1}$ at $z=1.5-3.2$ with evidence for high-velocity ($v > 1000$ km s$^{-1}$) [OIII]$λ$5007Å outflows. X-rays allow us to directly probe circumnuclear obscuration and to measure the instantaneous accretion luminosity. We detect ten out of eleven extremely red quasars available in targeted and archival data. Using a combination of X-ray spectral fitting and hardness ratios, we find that all of the ERQs show signs of absorption in the X-rays with inferred column densities of $N_{\rm H}\approx 10^{23}$ cm$^{-2}$, including four Compton-thick candidates ($N_{\rm H} > 10^{24}$ cm$^{-2}$). We stack the X-ray emission of the seven weakly detected sources, measuring an average column density of $N_{\rm H}\sim 8\times 10^{23}$ cm$^{-2}$. The absorption-corrected (intrinsic) $2-10$ keV X-ray luminosity of the stack is $2.7\times 10^{45}$ erg s$^{-1}$, consistent with X-ray luminosities of type 1 quasars of the same infrared luminosity. Thus, we find that ERQs are a highly obscured, borderline Compton-thick population, and based on optical and infrared data we suggest that these objects are partially hidden by their own equatorial outflows. However, unlike some quasars with known outflows, ERQs do not appear to be intrinsically underluminous in X-rays for their bolometric luminosity. Our observations indicate that low X-rays are not necessary to enable some types of radiatively driven winds.
description: 16 pages, 6 figures, 2 tables. Re-submitted to ApJ following referee's comments
title: ADCO, Cartulaire de Cîteaux pour les domaines de Beaune (XVe siècle), Cart. 177 (11 H 289), 197 folios, f. 0032
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2015
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: cartulaire
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: Cartulaire de Cîteaux pour les domaines de Beaune (XVe siècle), Archives départementales de la Côte-d'Or, Cart. 177 (11 H 289), 197 folios, f. 0032, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de Cîteaux pour les possessions d’Izeure (XVe siècle), Archives départementales de la Côte-d'Or, Cart. 177 (11 H 289), 197 folios, f. 0032, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
Ambipolar Drift Heating in Turbulent Molecular Clouds
Creators: name: Padoan, Paolo
name: Zweibel, ; Ellen
name: Nordlund, ; AAke
Publisher: name: arXiv
Year: 1999
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Although thermal pressure is unimportant dynamically in most molecular gas, the temperature is an important diagnostic of dynamical processes and physical conditions. This is the first of two papers on thermal equilibrium in molecular clouds. We present calculations of frictional heating by ion-neutral (or ambipolar) drift in three-dimensional simulations of turbulent, magnetized molecular clouds. We show that ambipolar drift heating is a strong function of position in a turbulent cloud, and its average value can be significantly larger than the average cosmic ray heating rate. The volume averaged heating rate per unit volume due to ambipolar drift, H_AD ~ |JxB|^2 ~ B^4/L_B^2, is found to depend on the rms Alfvenic Mach number, M_A, and on the average field strength, as H_AD ~ M_A^2^4. This implies that the typical scale of variation of the magnetic field, L_B, is inversely proportional to M_A, which we also demonstrate.
description: 37 pages, 9 figures included
Classification and properties of quantum spin liquids on the hyperhoneycomb lattice
Creators: name: Huang, Biao
name: Choi, Wonjune
name: Kim, Yong Baek
name: Lu, Yuan-Ming
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The family of "Kitaev materials" provides an ideal platform to study quantum spin liquids and their neighboring magnetic orders. Motivated by the possibility of a quantum spin liquid ground state in pressurized hyperhoneycomb iridate $β$-Li$_2$IrO$_3$, we systematically classify and study symmetric quantum spin liquids on the hyperhoneycomb lattice, using the Abrikosov-fermion representation. Among the 176 symmetric $U(1)$ spin liquids (and 160 $Z_2$ spin liquids), we identify 8 "root" $U(1)$ spin liquids in proximity to the ground state of the solvable Kitave model on hyperhonecyomb lattices. These 8 states are promising candidates for possible $U(1)$ spin liquid ground states in pressurized $β$-Li$_2$IrO$_3$. We further discuss physical properties of these 8 $U(1)$ spin liquid candidates, and show that they all support nodal-line-shaped spinon Fermi surfaces.
description: 8+9 pages, 4 figures, 1 table
N-body simulations of globular cluster tides
Creators: name: Combes, F.
name: Leon, S.
name: Meylan, G.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present N-body simulations of globular clusters, in orbits around the Galaxy, in order to study quantitatively and geometrically the tidal effects they encounter. The clusters are modelised with multi-mass King-Michie models (Michie 1963), including mass segregation at initial conditions. The Galaxy is modelled as realistic as possible, with three components: bulge, disk and dark halo. The main finding is that there exist two giant tidal tails around the globuler cluster in permanence along its orbit, whatever this orbit. The length of these tails is of the order of 5 tidal radii, or greater. The escaped stars are distributed radially as a power law in density, with a slope of -4. The tails present substructures, or clumps, that are the relics of the strongest shocks. Due to the compressive disk-shocking, the clusters display a prolate shape which major axis is precessing around the z axis. The tails are preferentially formed by the lowest mass stars, as expected, so that the tidal truncation increases mass segregation. Internal rotation of the cluster increases the mass loss. The flattening of dark matter cannot influence significantly the dynamics of the clusters. The orientation and the strength of the tidal tails are signatures of the last disk crossing, so that observed tidal tails can constrain strongly the cluster orbit and the galactic model (vertical scale of the disc).
description: 15 pages, 20 figures, Accepted in Astronomy and Astrophysics
Near-infrared line imaging of the circumnuclear starburst rings in the active galaxies NGC 1097 and NGC 6574
Creators: name: Kotilainen, J. K.
name: Reunanen, J.
name: Laine, S.
name: Ryder, S. D.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present high spatial resolution near-infrared broad-band JHK and Br_gamma 2.166 micron and H_2 1-0 S(1) 2.121 micron emission line images of the circumnuclear star formation rings in the LINER/Seyfert 1 galaxy NGC 1097 and the Seyfert 2 galaxy NGC 6574. We investigate the morphology, extinction, and the star formation properties and history of the rings, by comparing the observed properties with an evolutionary population synthesis model. The clumpy morphology in both galaxies varies strongly with wavelength, due to a combination of extinction, hot dust and red supergiants, and the age of the stellar populations. The near-infrared and radio morphologies are in general agreement, although there are differences in the detailed morphology. From the comparison of Br_gamma and H_alpha fluxes, we derive average extinctions toward the hot spots A_V = 1.3 for NGC 1097 and A_V = 2.1 for NGC 6574. The observed H_2/Br_gamma ratios indicate that in both rings the main excitation mechanism of the molecular gas is UV radiation from hot young stars, while shocks can contribute only in a few regions. The starburst rings in both galaxies exhibit small Br_gamma equivalent widths. Assuming a constant star formation rate with M_u = 100 M_o results in extremely long ages (up to 1 Gyr), in disagreement with the morphology and the radio spectral index of the galaxies. This situation is only slightly remedied by a reduced upper mass cutoff (M_u = 30 M_o). We prefer a model of an instantaneous burst of star formation with M_u = 100 M_o occurring ~6-7 Myr ago. Gaseous nuclear bars parallel to the stellar nuclear bar were detected in both galaxies, with M ~100 M_o for the mass of the excited nuclear H_2 emission. Finally, we briefly discuss the connection between the rings, bars and the fuelling of nuclear activity.
description: 14 pages, accepted for publication in Astronomy & Astrophysics
DANGERS OF PSYCHOTROPIC DRUGS.docx
Creators: name: Wilkin, Stanley
Publisher: name: figshare
Year: 2018
Subjects: subject: Behavioral Neuroscience
subject: Biological Techniques
subject: Developmental Biology
subject: 60110 Receptors and Membrane Biology
subject: FOS: Biological sciences
subject: 110903 Central Nervous System
subject: FOS: Clinical medicine
subject: 111708 Health and Community Services
subject: FOS: Health sciences
subject: 111005 Mental Health Nursing

description: Is depression caused by chemical imbalance and do psychotropic drugs help? What truth is there to this hypothesis?
title: ADCO, Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome VI, Cart. 190 (11 H 75), 316 folios, f. 0313v
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2012
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: cartulaire
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome VI, Archives départementales de la Côte-d'Or, Cart. 190 (11 H 75), 316 folios, f. 0313v, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome VI, Archives départementales de la Côte-d'Or, Cart. 190 (11 H 75), 316 folios, f. 0313v, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
The fraction of AGN in major merger galaxies and its luminosity dependence
Creators: name: Weigel, Anna K.
name: Schawinski, Kevin
name: Treister, Ezequiel
name: Trakhtenbrot, Benny
name: Sanders, David B.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We use a phenomenological model which connects the galaxy and AGN populations to investigate the process of AGN triggering through major galaxy mergers at z~0. The model uses stellar mass functions as input and allows the prediction of AGN luminosity functions based on assumed Eddington ratio distribution functions (ERDFs). We show that the number of AGN hosted by merger galaxies relative to the total number of AGN increases as a function of AGN luminosity. This is due to more massive galaxies being more likely to undergo a merger and does not require the assumption that mergers lead to higher Eddington ratios than secular processes. Our qualitative analysis also shows that to match the observations, the probability of a merger galaxy hosting an AGN and accreting at a given Eddington value has to be increased by a factor ~10 relative to the general AGN population. An additional significant increase of the fraction of high Eddington ratio AGN among merger host galaxies leads to inconsistency with the observed X-ray luminosity function. Physically our results imply that, compared to the general galaxy population, the AGN fraction among merger galaxies is ~10 times higher. On average, merger triggering does however not lead to significantly higher Eddington ratios.
description: 11 pages, 3 figues, accepted for publication in MNRAS
The radio structures of southern 2-Jy radio sources: new ATCA and VLA radio images
Creators: name: Morganti, R.
name: Oosterloo, T.
name: Tadhunter, C. N.
name: Aiudi, R.
name: Jones, P.
name: Villar-Martin, M.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present new radio images obtained with the Australia Telescope Compact Array (ATCA) and the Very Large Array (VLA) for a group of 14 galaxies belonging to the 2-Jy sample of radio sources. The new images improve the data already available on these objects and, in general, the database that we are building up on the sample. They will also be used for follow-up work where radio-optical comparison will be done. We briefly discuss the core dominance parameter (R) for the objects for which the new data have given new information and, in particular, for broad line radio galaxies (BLRG). One of the BLRG does not show a core, even at 3 cm, and this is at variance with the general tendency of BLRG to have relatively strong cores. The depolarization is also discussed for a group of small double-lobed radio galaxies.
description: To appear in A&AS; LateX, figures in gif format, paper (in ps and html format) available at http://www.nfra.nl/~morganti/2Jy-radio
title: ADCO, Sixième cartulaire de Saint-Étienne de Dijon (1662), Cart. 30 (G 133), 441 folios, f. 711
Creators: name: de la Côte d'Or, Archives départementales
name: Petot, Frédéric
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2012
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: cartulaire
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: Sixième cartulaire de Saint-Étienne de Dijon (1662), Archives départementales de la Côte-d'Or, Cart. 30 (G 133), 441 folios, f. 711, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Sixième cartulaire de Saint-Étienne de Dijon (1662), Archives départementales de la Côte-d'Or, Cart. 30 (G 133), 441 folios, f. 711, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https://manuscrits.cbma-project.eu/
description: Provenance: abbaye Saint-Étienne de Dijon
description: Provenance: http://www.wikidata.org/entity/Q15945019
Polycyclic aromatic hydrocarbon emission toward the Galactic bulge
Creators: name: Shannon, Matthew J.
name: Peeters, Els
name: Cami, Jan
name: Blommaert, Joris A. D. L.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We examine polycyclic aromatic hydrocarbon (PAH), dust and atomic/molecular emission toward the Galactic bulge using Spitzer Space Telescope observations of four fields: C32, C35, OGLE and NGC 6522. These fields are approximately centered on (l, b) = (0.0°, 1.0°), (0.0°, -1.0°), (0.4°, -2.1°) and (1.0°, -3.8°), respectively. Far-infrared photometric observations complement the Spitzer/IRS spectroscopic data and are used to construct spectral energy distributions. We find that the dust and PAH emission are exceptionally similar between C32 and C35 overall, in part explained due to their locations---they reside on or near boundaries of a 7 Myr-old Galactic outflow event and are partly shock-heated. Within the C32 and C35 fields, we identify a region of elevated Hα emission that is coincident with elevated fine-structure and [O IV] line emission and weak PAH feature strengths. We are likely tracing a transition zone of the outflow into the nascent environment. PAH abundances in these fields are slightly depressed relative to typical ISM values. In the OGLE and NGC 6522 fields, we observe weak features on a continuum dominated by zodiacal dust. SED fitting indicates that thermal dust grains in C32 and C35 have comparable temperatures to those of diffuse, high-latitude cirrus clouds. Little variability is detected in the PAH properties between C32 and C35, indicating that a stable population of PAHs dominates the overall spectral appearance. In fact, their PAH features are exceptionally similar to that of the M82 superwind, emphasizing that we are probing a local Galactic wind environment.
description: Accepted for publication in the Astrophysical Journal
Additional file 1 of Studies on the electrostatic effects of stretched PVDF films and nanofibers
Creators: name: Lin, Yixuan
name: Zhang, Yuqiong
name: Zhang, Fan
name: Zhang, Meining
name: Li, Dalong
name: Deng, Gaofeng
name: Guan, Li
name: Dong, Mingdong
Publisher: name: figshare
Year: 2021
Subjects: Biophysics
Biochemistry
Space Science
Physical Sciences not elsewhere classified
Medicine
Biotechnology
Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified

description: Additional file 1: Figure S1–S6.