cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Biological Tissue Imaging with a Position and Time Sensitive Pixelated Detector
Creators: name: Jungmann, Julia H.
name: Smith, Donald F.
name: MacAleese, Luke
name: Klinkert, Ivo
name: Visser, Jan
name: Heeren, Ron M. A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We demonstrate the capabilities of a highly parallel, active pixel detector for large-area, mass spectrometric imaging of biological tissue sections. A bare Timepix assembly (512x512 pixels) is combined with chevron microchannel plates on an ion microscope matrix-assisted laser desorption time-of-flight mass spectrometer (MALDI TOF-MS). The detector assembly registers position- and time-resolved images of multiple m/z species in every measurement frame. We prove the applicability of the detection system to bio-molecular mass spectrometry imaging on biologically relevant samples by mass-resolved images from Timepix measurements of a peptide-grid benchmark sample and mouse testis tissue slices. Mass-spectral and localization information of analytes at physiological concentrations are measured in MALDI-TOF-MS imaging experiments. We show a high spatial resolution (pixel size down to 740x740 nm2 on the sample surface) and a spatial resolving power of 6 μm with a microscope mode laser field of view of 100-335 μm. Automated, large-area imaging is demonstrated and the Timepix' potential for fast, large-area image acquisition is highlighted.
Asymptotic Analysis of the Boltzmann Equation for Dark Matter Relics in the presence of a Running Dilaton and Space-Time Defects
Creators: name: Bender, Carl M.
name: Mavromatos, Nick E.
name: Sarkar, Sarben
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The interplay of dilatonic effects in dilaton cosmology and stochastic quantum space-time defects within the framework of string/brane cosmologies is examined. The Boltzmann equation describes the physics of thermal dark-matter-relic abundances in the presence of rolling dilatons. These dilatons affect the coupling of stringy matter to D-particle defects, which are generic in string theory. This coupling leads to an additional source term in the Boltzmann equation. The techniques of asymptotic matching and boundary-layer theory, which were recently applied by two of the authors (CMB and SS) to a Boltzmann equation, are used here to find the detailed asymptotic relic abundances for all ranges of the expectation value of the dilaton field. The phenomenological implications for the search of supersymmetric dark matter in current colliders, such as the LHC, are discussed.
Direct Observation of the Mechanism of Antibiotic Resistance by Mix-and-Inject at the European XFEL
Creators: name: Pandey, Suraj
name: Bean, Richard
name: Sato, Tokushi
name: Poudyal, Ishwor
name: Bielecki, Johan
name: Cruz Villarreal, Jorvani
name: Yefanov, Oleksandr
name: Mariani, Valerio
name: White, Thomas A.
name: Kupitz, Christopher
name: Hunter, Mark
name: Abdellatif, Mohamed H.
name: Bajt, Saša
name: Bondar, Valerii
name: Echelmeier, Austin
name: Doppler, Diandra
name: Emons, Moritz
name: Frank, Matthias
name: Fromme, Raimund
name: Gevorkov, Yaroslav
name: Giovanetti, Gabriele
name: Jiang, Man
name: Kim, Daihyun
name: Kim, Yoonhee
name: Kirkwood, Henry
name: Klimovskaia, Anna
name: Knoska, Juraj
name: Koua, Faisal H. M.
name: Letrun, Romain
name: Lisova, Stella
name: Maia, Luis
name: Mazalova, Victoria
name: Meza, Domingo
name: Michelat, Thomas
name: Ourmazd, Abbas
name: Palmer, Guido
name: Ramilli, Marco
name: Schubert, Robin
name: Schwander, Peter
name: Silenzi, Alessandro
name: Sztuk-Dambietz, Jolanta
name: Tolstikova, Alexandra
name: Chapman, Henry N.
name: Ros, Alexandra
name: Barty, Anton
name: Fromme, Petra
name: Mancuso, Adrian P.
name: Schmidt, Marius
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2020
Subjects: subject: 610

description: Nature methods (2020). doi:10.1101/2020.11.24.396689
description: In this study, we follow the diffusion and buildup of occupancy of the substrate ceftriaxone in M. tuberculosis β-lactamase BlaC microcrystals by structural analysis of the enzyme substrate complex at single millisecond time resolution. We also show the binding and the reaction of an inhibitor, sulbactam, on a slower millisecond time scale. We use the ‘mix-and-inject’ technique to initiate these reactions by diffusion, and determine the resulting structures by serial crystallography using ultrafast, intense X-ray pulses from the European XFEL (EuXFEL) arriving at MHz repetition rates. Here, we show how to use the EuXFEL pulse structure to dramatically increase the size of the data set and thereby the quality and time resolution of “molecular movies” which unravel ligand binding and enzymatically catalyzed reactions. This shows the great potential for the EuXFEL as a tool for biomedically relevant research, particularly, as shown here, for investigating bacterial antibiotic resistance.
description: Published by Nature Publishing Group, London [u.a.]
Investigations on selectivity of gas‐liquid reactions in capillaries
Creators: name: Grühn, Julia
name: Burke, Inga
name: Neuhaus, Nadine
name: Kockmann, Norbert
Publisher: name: TU Dortmund
Year: 2020
Subjects: subject: Coiled flow inverter
subject: Gas-liquid reaction
subject: Michaelis-Menten kinetic
subject: Taylor flow
subject: 660

description: Biocatalysis offers a broad spectrum of possible ecological and economic advantages over conventional chemical catalysis processes, e.g., lower energy consumption and high enantio selectivity. The focus of this work is on gas‐liquid reactions. These are of great importance in the chemical and biochemical industry and subject of current research since they are often limited by mass transfer or show low selectivity. Different suitable biocatalytically gas‐liquid reaction systems were tested in capillary reactor designs in order to obtain information about the interaction between reaction and fluid mechanics. Furthermore, an optical measuring method was established. The experiments were performed in batch mode in a glass beaker with a flow cuvette for UV/Vis measurement of product concentration.
description: Chemie Ingenieur Technik;Vol. 92, Issue 5, p 624-628 Special Issue: Reaktionstechnik
Frozen into stripes: fate of the critical Ising model after a quench
Creators: name: Blanchard, Thibault
name: Picco, Marco
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In this work we study numerically the final state of the two dimensional ferromagnetic critical Ising model after a quench to zero temperature. Beginning from equilibrium at $T_c$, the system can be blocked in a variety of infinitely long lived stripe states in addition to the ground state. Similar results have already been obtained for an infinite temperature initial condition and an interesting connection to exact percolation crossing probabilities has emerged. Here we complete this picture by providing a new example of stripe states precisely related to initial crossing probabilities for various boundary conditions. We thus show that this is not specific to percolation but rather that it depends on the properties of spanning clusters in the initial state.
description: 4 pages, 5 figures
Gamma-ray emission from the Westerlund 1 region
Creators: name: Ohm, S.
name: Hinton, J. A.
name: White, R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Westerlund 1 (Wd 1) is the most massive stellar cluster in the Galaxy and associated with an extended region of TeV emission. Here we report the results of a search for GeV gamma-ray emission in this region. The analysis is based on ~4.5 years of Fermi-LAT data and reveals significantly extended emission which we model as a Gaussian, resulting in a best-fit sigma of sigma_S = (0.475 +/- 0.05) deg and an offset from Wd 1 of ~1 deg. A partial overlap of the GeV emission with the TeV signal as reported by H.E.S.S. is found. We investigate the spectral and morphological characteristics of the gamma-ray emission and discuss its origin in the context of two distinct scenarios. Acceleration of electrons in a Pulsar Wind Nebula provides a reasonably natural interpretation of the GeV emission, but leaves the TeV emission unexplained. A scenario in which protons are accelerated in or near Wd 1 in supernova explosion(s) and are diffusing away and interacting with molecular material, seems consistent with the observed GeV and TeV emission, but requires a very high energy input in protons, ~10^51 erg, and rather slow diffusion. Observations of Wd 1 with a future gamma-ray detector such as CTA provide a very promising route to fully resolve the origin of the TeV and GeV emission in Wd 1 and provide a deeper understanding of the high-energy (HE) astrophysics of massive stellar clusters.
description: accepted for publication in MNRAS, 6 pages, 4 figures, 2 tables
On the Detectability of 57Fe Axion-Photon Mode Conversion in the Sun
Creators: name: Laming, J. Martin
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The purpose of this paper is to assess the feasibility of axion detection by X-ray spectroscopy of the sun. We review the theory of axion-photon mode conversion with special attention to axions emitted in the 14.4 keV M1 decay of 57Fe at the solar center. These then mode convert to photons in the outer layers of the solar envelope, and may in principle be detected subsequently as X-rays. For axion masses above about 10^-4 eV, resonant mode conversion at a layer where the axion mass matches the local electron plasma frequency is necessary. For axion masses above about 10^-2 eV, this mode conversion occurs too deep in the solar atmosphere for the resulting photon to escape the solar surface and be detected before Compton scattering obscures the line. At the (detectable) axion masses below this, the flux of mode converted photons predicted by axion models appears to be too low for detection to be feasible with current instrumentation. Nonresonant mode conversion for axion masses below 10^-4 eV is also plausible, but with still lower predicted fluxes, since the axion coupling constant is related to it mass. Prospects for meaningful constraints on massive axion parameters from X-ray observations of this transition from the Sun do not appear to be promising. However parameters for massless counterparts (e.g. the "arion") may still result from such observations. It may mode convert in the outer layers of the solar atmosphere, but is not restricted by this to have a small coupling constant.
description: 5 pages, 4 figures, accepted by Astronomy and Astrophysics
„Niewidzialne dziedzictwo”
Creators: name: Seidel-Grzesińska, Agnieszka
name: Wyrzykowska, Małgorzata
Publisher: name: Quart
Year: 2019

description: Includes a summary in English
description: Quart, Bd. 34 Nr. 4 (2014): Quart. The Quarterly of the Institute of Art History at the University of Wrocław
Direct measurement results of the time lag of LOS-velocity oscillations between two heights in solar faculae and sunspots
Creators: name: Kobanov, Nikolai
name: Kolobov, Dmitri
name: Kustov, Arseniy
name: Chupin, Sergey
name: Chelpanov, Andrey
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present an investigation of line-of-sight (LOS) velocity oscillations in solar faculae and sunspots. To study the phase relations between chromosphere and photosphere oscillations of the LOS velocity, we measured the time lag of the chromospheric signal relative to the photospheric one for several faculae and sunspots in a set of spectral line pairs. The measured time lags are different for different objects. The mean measured delay between the oscillations in the five-minute band in faculae is 50s for the SiI 10827Å-HeI 10830Å pair; for the pair FeI 6569Å-H-alpha 6563Å the mean delay is 20s; for the pair FeI 4551Å-BaII 4554Å the mean delay is 7s; for the pair SiI 8536Å-CaII 8542Å the mean delay is 20s. For the oscillations in the three-minute band in sunspot umbrae the mean delay is 55s for the SiI 10827Å-HeI 10830Å pair; for the Fe I 6569Å-H-alpha 6563Å pair it was not possible to determine the delay; for the FeI 4551Å-BaII 4554Å pair the mean delay is 6s; for the SiI 8536Å-CaII 8542Å pair the mean delay is 21s. Measured delays correspond to the wave propagation speed which significantly exceeds the generally adopted speed of sound in the photosphere. This raises the question of the origin of these oscillations. The possibility that we deal with slow MHD waves is not ruled out.
Evaluating the Efficacy of Stream Restoration Utilizing Biotic Indices
Creators: name: Henderson, Robin M.
Publisher: name: Washington State University
Year: 2022
Subjects: Benthic Macroinvertebrates
RIVPACS
Stream Restoration

description: Annually, significant resources are utilized to restore ecological function in streams degraded by anthropogenic activities. Consequently, stream restoration is an increasingly common approach utilized to ameliorate past degradation of freshwater ecosystems. The underlying assumption of stream restoration programs is that biological integrity will improve following restoration; however, there is little scientific evidence to support this assumption since most projects lack effectiveness monitoring and results have been widely variable. This dissertation focuses on evaluating the efficacy of stream restoration using benthic macroinvertebrates as biotic indicators. I first evaluated if the overall performance (i.e., accuracy, precision, bias, responsiveness, and sensitivity) of Observed/Expected indices improved by adding additional references sites to River Invertebrate Prediction and Classification System models for two restoration projects (Eldorado Creek Restoration Project, AK and the Middle Fork John Day River Intensively Monitored Watershed (MFJDR IMW), Oregon). Additionally, since the differences necessary to discriminate between sites increases as variability increases, the variability for multiple biotic indices (Simpson’s Diversity index, Hilsenhoff’s biotic index, Observed/Expected index, and multi-metric index metrics) were compared for both projects. Lastly, I evaluated the efficacy of stream restoration for a seven-year dataset representing benthic macroinvertebrates for the MFJDR IMW restoration project.
description: In this research, I detailed how combining datasets using consistent, reproducible methodology created a system of reference sites which greatly increased the sample size of the reference network as well as representation in each reference group. This subsequently increased the accuracy of the predictive models for all models for MFJDR IMW restoration project and half the models for the Eldorado Creek restoration project. Therefore, datasets among organizations can thus be combined and used to inform macroinvertebrate assessment tools like biotic indices. Additionally, this research has shown that the spatial and temporal variability for all indices, including the Observed/Expected index, Simpson’s Diversity index, and Hilsenhoff’s biotic index, was low, but it was still high enough to result in variable ecological status assessments. Furthermore, this research showed that while there may be significant differences in streams and years using ANOVAs and multiple comparisons, there is not yet evidence of improvement in biotic integrity scores for restored MFJDR sites.
k-Modulus Method for Image Transformation
Creators: name: Jassim, Firas A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: In this paper, we propose a new algorithm to make a novel spatial image transformation. The proposed approach aims to reduce the bit depth used for image storage. The basic technique for the proposed transformation is based of the modulus operator. The goal is to transform the whole image into multiples of predefined integer. The division of the whole image by that integer will guarantee that the new image surely less in size from the original image. The k-Modulus Method could not be used as a stand alone transform for image compression because of its high compression ratio. It could be used as a scheme embedded in other image processing fields especially compression. According to its high PSNR value, it could be amalgamated with other methods to facilitate the redundancy criterion.
description: 5 pages, 2 tables, 6 figures
Photoproduction and mixing effects of scalar a0 and f0 mesons
Creators: name: Tarasov, V. E.
name: Briscoe, W. J.
name: Gradl, W.
name: Kudryavtsev, A. E.
name: Strakovsky, I. I.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The photoproduction processes gp-->a0(980)p and gp-->f0(980)p at energies close to threshold are considered. These reactions are studied in the ππp, πηp, and K-barK p channels. Production cross sections are estimated in different models. The role of the a0^0-f0 mixing is examined in the invariant ππ-,πη-, and K-barK-mass spectra.
description: 18 pages, 9 figures, 1 table; v2: added some refs
Why is the Moon synchronously rotating?
Creators: name: Makarov, Valeri V.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: If the Moon's spin evolved from faster prograde rates, it could have been captured into a higher spin-orbit resonance than the current 1:1 resonance. At the current value of orbital eccentricity, the probability of capture into the 3:2 resonance is as high as 0.6, but it strongly depends on the temperature and average viscosity of the Moon's interior. A warmer, less viscous Moon on a higher-eccentricity orbit is even more easily captured into supersynchronous resonances. We discuss two likely scenarios for the present spin-orbit state: a cold Moon on a low-eccentricity orbit and a retrograde initial rotation.
description: accepted in MNRAS Letters
Sequences of Gluing Bifurcations in an Analog Electronic Circuit
Creators: name: Akhtanov, Sayat N.
name: Zhanabaev, Zeinulla Zh.
name: Zaks, Michael A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We report on the experimental investigation of gluing bifurcations in the analog electronic circuit which models a dynamical system of the third order: Lorenz equations with an additional quadratic nonlinearity. Variation of one of the resistances in the circuit changes the coefficient at this nonlinearity and enables transition from the Lorenz route to chaos to a different scenario which leads, through the sequence of homoclinic bifurcations, from periodic oscillations of the voltage to the chaotic state. A single bifurcation "glues" in the phase space two stable periodic orbits and creates a new one, with the doubled length: a bifurcation sequence results in the birth of the chaotic attractor.
description: 6 pages, 6 figures
The quadruple pre-main sequence system LkCa3: Implications for stellar evolution models
Creators: name: Torres, Guillermo
name: Ruiz-Rodriguez, Dary
name: Badenas, Mariona
name: Prato, L.
name: Schaefer, G. H.
name: Wasserman, Lawrence H.
name: Mathieu, Robert D.
name: Latham, David W.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report the discovery that the pre-main sequence object LkCa3 in the Taurus-Auriga star-forming region is a hierarchical quadruple system of M stars. It was previously known to be a close (~0.5 arc sec) visual pair, with one component being a moderately eccentric 12.94-day single-lined spectroscopic binary. A re-analysis of archival optical spectra complemented with new near-infrared spectroscopy shows both visual components to be double-lined, the second one having a period of 4.06 days and a circular orbit. In addition to the orbital elements, we determine optical and near-infrared flux ratios, effective temperatures, and projected rotational velocities for all four stars. Using existing photometric monitoring observations of the system that had previously revealed the rotational period of the primary in the longer-period binary, we detect also the rotational signal of the primary in the 4.06-day binary, which is synchronized with the orbital motion. With only the assumption of coevality, a comparison of all of these constraints with current stellar evolution models from the Dartmouth series points to an age of 1.4 Myr and a distance of 133 pc, consistent with previous estimates for the region and suggesting the system is on the near side of the Taurus complex. Similar comparisons of the properties of LkCa3 and of the well-known quadruple pre-main sequence system GG Tau with the widely used models from the Lyon series for a mixing length parameter of alpha_ML = 1.0 strongly favor the Dartmouth models.
description: Accepted for publication in ApJ; 15 pages including figures and tables, in emulateapj format; minor clarifications added
بحث الأمن الفكري.pdf
Creators: name: Shaban, Ahmed
Publisher: name: figshare
Year: 2021
Subjects: subject: Library and Information Studies
subject: FOS: Media and communications

description: Research title : The role of the library in promoting the intellectual security of adolescents . Prepared by : Dr / Ahmed Shaban Ahmed . This research aims to identify the importance of intellectual security in society . The role of the library in promoting the intellectual security of adolescents . The researcher used analytical descriptive approach . The research founded the following results :The concept of intellectual security needs to be reformulated and further research . The library plays an important role in promoting the intellectual security of adolescents through their activities and services . Presenting of a proposed vision for the role of the library in promoting the intellectual security of adolescents
PASSION: a workflow for the estimation of rooftop photovoltaic potential from satellite imagery
Creators: name: Pueblas, Rodrigo
name: Kuckertz, Patrick
name: Weinand, Jann
name: Stolten, Detlef
Publisher: name: Forschungzentrum Jülich
Year: 2023

description: EGU23 Conference, Wien, Austria, 23 Apr 2023 - 28 Apr 2023
description: See attached file.
Dynamic screening and energy loss of antiprotons colliding with excited Al clusters
Creators: name: Koval, Natalia E.
name: Sánchez-Portal, Daniel
name: Borisov, Andrey G.
name: Muiño, Ricardo Díez
Publisher: name: arXiv
Year: 2013
Subjects: subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We use time-dependent density functional theory to calculate the energy loss of an antiproton colliding with a small Al cluster previously excited. The velocity of the antiproton is such that non-linear effects in the electronic response of the Al cluster are relevant. We obtain that an antiproton penetrating an excited cluster transfers less energy to the cluster than an antiproton penetrating a ground state cluster. We quantify this difference and analyze it in terms of the cluster excitation spectrum.
description: 23 pages, 4 figures, to be published in Nuclear Instruments and Methods B as a proceeding of the IISC-19 Workshop on Inelastic Ion-Surface Collisions
On the time arrows, and randomness in cosmological signals
Creators: name: Gurzadyan, V. G.
name: Sargsyan, S.
name: Yegorian, G.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Arrows of time - thermodynamical, cosmological, electromagnetic, quantum mechanical, psychological - are basic properties of Nature. For a quantum system-bath closed system the de-correlated initial conditions and no-memory (Markovian) dynamics are outlined as necessary conditions for the appearance of the thermodynamical arrow. The emergence of the arrow for the system evolving according to non-unitary dynamics due to the presence of the bath, then, is a result of limited observability, and we conjecture the arrow in the observable Universe as determined by the dark sector acting as a bath. The voids in the large scale matter distribution induce hyperbolicity of the null geodesics, with possible observational consequences.
description: Eur.Phys.J. (to appear), 7 pages, 4 figs; talk at Time Machine Factory conf. (Turin, 2012)
Transitioning to a Human-User-Centered Model of Scientific Documentation
Creators: name: Gonzalez-Marquez, Monica
Publisher: name: Zenodo
Year: 2023

description: Much of Open Science's efforts have focused on outcomes rather than processes, neglecting that what gives science its weight is the rigor of the process by which information was produced and justified, and that hence, exhaustive documentation and scrutiny of those processes, in addition to output data, are the bedrock of a reliable scientific knowledge base.  A cursory examination of Open Science infrastructure supports our argument: overwhelming resources go towards archiving output data or supporting Open Access, but very little goes to any of the other facets of Open Science, such as Open Methodology. Pressing as these issues are, they become even more urgent in the context of Big Team Science, given the sheer magnitude of effort involved in doing science. If the reliability and reproducibility of science depends on accurate records of who did what, when, where, why and how, it becomes imperative to use a paradigm that allows us to easily and systematically keep track of all of this information. We align with past advocacies on the need to reform knowledge documentation and communication away from the paper-centric publication system by proposing The Heliocentric Model of Open Science Documentation (Helio), a model that encompasses the entirety of the research process.
 
0009-0003-5878-3706
Towards a Networks-of-Networks Framework for Cyber Security
Creators: name: Halappanavar, Mahantesh
name: Choudhury, Sutanay
name: Hogan, Emilie
name: Hui, Peter
name: Johnson, John R.
name: Ray, Indrajit
name: Holder, Lawrence
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cryptography and Security (cs.CR)
subject: Networking and Internet Architecture (cs.NI)
subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: Networks-of-networks (NoN) is a graph-theoretic model of interdependent networks that have distinct dynamics at each network (layer). By adding special edges to represent relationships between nodes in different layers, NoN provides a unified mechanism to study interdependent systems intertwined in a complex relationship. While NoN based models have been proposed for cyber-physical systems, in this position paper we build towards a three-layered NoN model for an enterprise cyber system. Each layer captures a different facet of a cyber system. We present in-depth discussion for four major graph- theoretic applications to demonstrate how the three-layered NoN model can be leveraged for continuous system monitoring and mission assurance.
description: A shorter (3-page) version of this paper will appear in the Proceedings of the IEEE Intelligence and Security Informatics 2013, Seattle Washington, USA, June 4-7, 2013
Minimum heat dissipation in measurement-based quantum computation
Creators: name: Morimae, Tomoyuki
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show that at least 2kTln2 of heat dissipation per qubit occurs in measurement-based quantum computation according to Landauer's principle. This result is derived by using only the fundamental fact that quantum physics respects the no-signaling principle.
description: 6 pages, 4 figures
LUNASKA neutrino search with the Parkes and ATCA telescopes
Creators: name: Bray, J. D.
name: Ekers, R. D.
name: Protheroe, R. J.
name: James, C. W.
name: Phillips, C. J.
name: Roberts, P.
name: Brown, A.
name: Reynolds, J. E.
name: McFadden, R. A.
name: Aartsen, M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The Moon is used as a target volume for ultra-high energy neutrino searches with terrestrial radio telescopes. The LUNASKA project has conducted observations with the Parkes and ATCA telescopes; and, most recently, with both of them in combination. We present an analysis of the data obtained from these searches, including validation and calibration results for the Parkes-ATCA experiment, as well as a summary of prospects for future observations.
description: 13 pages, 7 figures, Proceedings of the ARENA 2012 workshop (Erlangen, Germany)
Dilepton Measurements at STAR
Creators: name: Geurts, F.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: In the study of hot and dense nuclear matter, created in relativistic heavy-ion collisions, dilepton measurements play an essential role. Leptons, when compared to hadrons, have only little interaction with the strongly interacting system. Thus, dileptons provide ideal penetrating probes that allow the study of such a system throughout its space-time evolution. In the low mass range ($M_{ll}<1.1$ GeV/$c^2$), the dominant source of dileptons originates from the decay of vector mesons which may see effects from chiral symmetry restoration. In the intermediate mass range ($1.13.0$ GeV/$c^2$), dilepton measurements are expected to see contributions from primordial processes involving heavy quarks, and Drell-Yan production. With the introduction of the Time-of-Flight detector, the STAR detector has been able to perform large acceptance, high purity electron identification. In this contribution, we will present STAR's recent dielectron measurements in the low and intermediate mass range for RHIC beam energies ranging between 19.6 and 200 GeV. Compared to electrons, muon measurements have the advantage of reduced bremsstrahlung radiation in the surrounding detector materials. With the upcoming detector upgrades, specifically the muon detector (MTD), STAR will be able to include such measurements in its (di-)lepton studies. We will discuss the future dilepton program at STAR and the physics cases for these upgrades.
description: 10 pages, 11 figures. Proceedings of the 29th Winter Workshop on Nuclear Dynamics (WWND 2013), Squaw Valley, CA
The Texas Poll: Elections
Creators: name: Belden Associates
Publisher: name: Roper Center for Public Opinion Research
Year: 2021

description: Knowledge of certain products (1); possession of certain products (1); family use of products (1); frequency and reasons for use (2); daily newspaper subscription (1); places of interest in Texas (2); taking a vacation (6); world moving toward peace/war (1); views of law against reading religious texts/prayers in school (1); candidate preference for president (2); Barry Goldwater vs. Lyndon Johnson speech (1); knowledge of who fills certain offices (2); possession of poll tax receipt/exemption/or vote without poll tax (1); political interest (1); voter frequency (1); plans to vote (2); partisanship (2); ideology (1); town vs. country (1).
Predicted alternative structure for tantalum metal under high pressure and high temperature
Creators: name: Liu, Zhong-Li
name: Cai, Ling-Cang
name: Zhang, Xiu-Lu
name: Xi, Feng
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: First-principles simulations have been performed to investigate the phase stability of tantalum metal under high pressure and high temperature (HPHT). We searched its low-energy structures globally using our developed multi-algorithm collaborative (MAC) crystal structure prediction technique. The body-centred cubic (bcc) was found to be stable at pressure up to 300 GPa. The previously reported $ω$ and \textit{A}15 structures were also reproduced successfully. More interestingly, we observed another phase (space group: \textit{Pnma}, 62) that is more stable than $ω$ and \textit{A}15. Its stability is confirmed by its phonon spectra and elastic constants. For $ω$-Ta, the calculated elastic constants and high-temperature phonon spectra both imply that it is neither mechanically nor dynamically stable. Thus, $ω$ is not the structure to which bcc-Ta transits before melting. On the contrary, the good agreement of \textit{Pnma}-Ta shear sound velocities with experiment suggests \textit{Pnma} is the new structure of Ta implied by the discontinuation of shear sound velocities in recent shock experiment [J. Appl. Phys. \textbf{111}, 033511 (2012)].
TETRANUCLEAR CU(I) CLUSTERS WITH TUNABLE EMISSIONS BASED ON REMOTE STERIC CONTROL
Creators: name: Washer, Benjamin M
Publisher: name: Purdue University Graduate School
Year: 2022
Subjects: Metal cluster chemistry
Crystallography
Organometallic chemistry
Solid state chemistry

description: Solid-state (SS) luminescent materials are an important class of materials in a myriad of technological applications including light-emitting devices (LEDs) and displays, SS lasers, sensors, imaging agents, etc. Unfortunately, the design of efficient SS emitters is often plagued by sensitivity to environment/matrix (e.g. aggregation-induced quenching, AIQ), competing non-radiative relaxation pathways, and complicated emission mechanisms that are difficult to systematically study and tune. Copper-based systems have been proven to be good candidates for SS emissive materials due to their low-cost, high synthetic variation and well-defined features. Examples of copper-cluster systems, specifically, have been shown to be highly stable, exhibit high photoluminescent quantum yields (ΦPL), and are often relatively insensitive to environmental changes. However, many of these systems are complicated in nature, and often evoke additional relaxation pathways. To mitigate these issues, tetranuclear Cu(I)-pyrazolate complexes have been made which exhibit high ΦPL, matrix insensitivity and proceed through one major radiative emission pathway: cluster-centered based phosphorescence (3CC). The pyrazoles are highly tunable, and by increasing the size of the ligand substituents (H, F, Cl/Me/Br), a rigidochromic effect is observed, causing a significant blue-shift in their photoluminescence, making these viable materials for organic LEDs (OLEDs), especially in the deep-blue region. Furthermore, by increasing the chain length of the ligand substituent (e.g., Me → Et), another material which exhibits stimuli-responsive luminochromism in response to solvent vapor or heat can be achieved. This material exhibits blue ↔ green rigidochromic luminescence in response to stimuli via isomerization of the ethyl units from exo ↔ endo resulting in additional steric effects that effectively prevent rigidification of the Cu4 cluster. This additional phenomenon opens the door for further exploration of Cu(I)-pyrazolate complexes for stimuli-responsive luminescent materials (SRLMs) applications.
Towards FAIR Pilots and distributed services
Creators: name: Le Bras, Yvan
name: Ferrario, Lorenza
name: Archambeau, Anne-Sophie
Publisher: name: Zenodo
Year: 2021
Subjects: FAIR prinicples
research data management
distributed services
pilot
FAIR implementation
Biodiversity
Nanofabrication
GO NANOFAB IN
BiodiFAIRse IN

description: A FAIR pilot on Biodiversity - The GO FAIR BiodiFAIRse IN is working on a FAIR pilot on biodiversity as a source of information, but also as an effective discovery tool. They scout FAIR approaches and evaluate implementations for their use cases. In this session, the chances and challenges to operationalizing a pilot through international convergence will be presented. A FAIR pilot on nanofabrication - The GO NANOFAB IN aims to work towards making accessible data, parameters and workflows from Nano Fabrication (NF) research laboratories, where silicon sensors are designed and manufactured. Specifically, GO NANOFAB seeks to define a standard description of fabrication steps even in R&D context, where quite each new sensor requires new recipes. The standardization will promote straightforward sharing of NF processes without “reinventing the wheel”, allowing shortening the time “from idea to the prototype”. Standardization will involve the description of equipment, recipes, materials and method of evaluation of processes as well as best practices to improve process quality.
description: GO FAIR Implementation Networks
The initial conditions and evolution of isolated galaxy models: effects of the hot gas halo
Creators: name: Hwang, Jeong-Sun
name: Park, Changbom
name: Choi, Jun-Hwan
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We construct several Milky Way-like galaxy models containing a gas halo (as well as gaseous and stellar disks, a dark matter halo, and a stellar bulge) following either an isothermal or an NFW density profile with varying mass and initial spin. In addition, galactic winds associated with star formation are tested in some of the simulations. We evolve these isolated galaxy models using the GADGET-3 $N$-body/hydrodynamic simulation code, paying particular attention to the effects of the gas halo on the evolution. We find that the evolution of the models is strongly affected by the adopted gas halo component. The model without a gas halo shows an increasing star formation rate (SFR) at the beginning of the simulation for some hundreds of millions of years and then a continuously decreasing rate to the end of the run at 3 Gyr. On the other hand, the SFRs in the models with a gas halo emerge to be either relatively flat throughout the simulations or increasing over a gigayear and then decreasing to the end. The models with the more centrally concentrated NFW gas halo show overall higher SFRs than those with the isothermal gas halo of the equal mass. The gas accretion from the halo onto the disk also occurs more in the models with the NFW gas halo, however, this is shown to take place mostly in the inner part of the disk and not to contribute significantly to the star formation unless the gas halo has very high density at the central part. The rotation of a gas halo is found to make SFR lower in the model. The SFRs in the runs including galactic winds are found to be lower than the same runs but without winds. We conclude that the effects of a hot gaseous halo on the evolution of galaxies are generally too significant to be simply ignored, and expect that more hydrodynamical processes in galaxies could be understood through numerical simulations employing both gas disk and gas halo components.
description: 28 pages, 19 figures (with reduced resolution). Accepted for publication in the Journal of the Korean Astronomical Society
Inequalities and bounds for the eigenvalues of the sub-Laplacian on a strictly pseudoconvex CR manifold
Creators: name: Aribi, Amine
name: Soufi, Ahmad El
Publisher: name: arXiv
Year: 2013
Subjects: subject: Metric Geometry (math.MG)
subject: Differential Geometry (math.DG)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics

description: We establish inequalities for the eigenvalues of the sub-Laplace operator associated with a pseudo-Hermitian structure on a strictly pseudoconvex CR manifold. Our inequalities extend those obtained by Niu and Zhang \cite{NiuZhang} for the Dirichlet eigenvalues of the sub-Laplacian on a bounded domain in the Heisenberg group and are in the spirit of the well known Payne-Pólya-Weinberger and Yang universal inequalities.
description: To appear in Calculus of variations and Partial Differential Equations
Environmental Policy Induced Input Substitution? The Case of Coking and Steam Coal
Creators: name: Lange, Ian
name: Lange, Ian
Publisher: name: Unknown
Year: 2007
Subjects: subject: Environmental Economics and Policy
subject: 1990 Clean Air Act
subject: Coke
subject: Input Substitution

description: The Clean Air Act of 1990 initiated a tradable permit program for emissions of sulfur dioxide from coal-fired power plants. The effect of this enlightened policy on the coal industry was a large increase in consumption of low-sulfur bituminous and subbituminous coals. Low-sulfur bituminous coal is most attractive to coal-fired power plants as they have higher heat content and require less alteration to the boiler to burn as effectively the coal previously in use. However, low-sulfur bituminous coal is also the ideal coal for coking. The analysis presented here will attempt to determine whether the increased consumption of low-sulfur bituminous coal for electricity generation caused a decrease in the quality and/or quantity of coking coal consumption. Most evidence suggests that the market for coking coal was unaffected, even as the consumption of low-sulfur bituminous coal for electricity generation increased substantially. Implications of potential greenhouse gas regulation on this market are also discussed.
The Planetary Nebula Spectrograph survey of S0 galaxy kinematics. Data and Overview
Creators: name: Cortesi, A.
name: Arnaboldi, M.
name: Coccato, L.
name: Merrifield, M. R.
name: Gerhard, O.
name: Bamford, S.
name: Romanowsky, A. J.
name: Napolitano, N. R.
name: Douglas, N. G.
name: Kuijken, K.
name: Capaccioli, M.
name: Freeman, K. C.
name: Chies-Santos, A. L.
name: Pota, V.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The origins of S0 galaxies remain obscure, with various mechanisms proposed for their formation, likely depending on environment. These mechanisms would imprint different signatures in the galaxies' stellar kinematics out to large radii, offering a method for distinguishing between them. We aim to study a sample of six S0 galaxies from a range of environments, and use planetary nebulae (PNe) as tracers of their stellar populations out to very large radii, to determine their kinematics in order to understand their origins. Using a special-purpose instrument, the Planetary Nebula Spectrograph, we observe and extract PNe catalogues for these six systems*. We show that the PNe have the same spatial distribution as the starlight, that the numbers of them are consistent with what would be expected in a comparable old stellar population in elliptical galaxies, and that their kinematics join smoothly onto those derived at smaller radii from conventional spectroscopy. The high-quality kinematic observations presented here form an excellent set for studying the detailed kinematics of S0 galaxies, in order to unravel their formation histories. We find that PNe are good tracers of stellar kinematics in these systems. We show that the recovered kinematics are largely dominated by rotational motion, although with significant random velocities in most cases.
description: 13, 8 figures, accepted in A&A
Determining accurate measurements of the growth rate from the galaxy correlation function in simulations
Creators: name: Contreras, Carlos
name: Blake, Chris
name: Poole, Gregory B.
name: Marin, Felipe
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We use high-resolution N-body simulations to develop a new, flexible, empirical approach for measuring the growth rate from redshift-space distortions (RSD) in the 2-point galaxy correlation function. We quantify the systematic error in measuring the growth rate in a $1 \, h^{-3}$ Gpc$^3$ volume over a range of redshifts, from the dark matter particle distribution and a range of halo-mass catalogues with a number density comparable to the latest large-volume galaxy surveys such as the WiggleZ Dark Energy Survey and the Baryon Oscillation Spectroscopic Survey (BOSS). Our simulations allow us to span halo masses with bias factors ranging from unity (probed by emission-line galaxies) to more massive haloes hosting Luminous Red Galaxies. We show that the measured growth rate is sensitive to the model adopted for the small-scale real-space correlation function, and in particular that the "standard" assumption of a power-law correlation function can result in a significant systematic error in the growth rate determination. We introduce a new, empirical fitting function that produces results with a lower (5-10%) amplitude of systematic error. We also introduce a new technique which permits the galaxy pairwise velocity distribution, the quantity which drives the non-linear growth of structure, to be measured as a non-parametric stepwise function. Our (model-independent) results agree well with an exponential pairwise velocity distribution, expected from theoretical considerations, and are consistent with direct measurements of halo velocity differences from the parent catalogues. In a companion paper we present the application of our new methodology to the WiggleZ Survey dataset.
description: 14 pages, 9 figures
“Paradox of gender quotas”: an experiment
Creators: name: Gendźwiłł, Adam
name: Górecki, Maciej A.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Mathematical Sciences not elsewhere classified
subject: Developmental Biology
subject: Infectious Diseases
subject: FOS: Health sciences

description: The notion of “paradox of gender quotas” points to the possibility that under certain preferential voting systems quotas may be simultaneously favorable and unfavorable to women; while they facilitate women’s passing the candidate selection stage, the quota-induced increase in the number of women candidates makes the competition at the ballot more exacting to women. The extant literature on that notion has been based exclusively on observational analyses and is largely inconclusive. In this note, we distinguish two mechanisms through which the “paradox” may possibly operate: limits to the overall women’s vote share and vote splitting. We subsequently propose an experimental test of those. We conduct a randomized survey experiment that mocks a situation of voting under various scenarios. The results that we obtain largely corroborate the presence of the former, but not the latter, mechanism behind the “paradox of gender quotas”.
Hyperbolic and Elliptic Transport Barriers in Three-Dimensional Unsteady Flows
Creators: name: Blazevski, Daniel
name: Haller, George
Publisher: name: arXiv
Year: 2013
Subjects: subject: Dynamical Systems (math.DS)
subject: Chaotic Dynamics (nlin.CD)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We develop a general theory of transport barriers for three-dimensional unsteady flows with arbitrary time-dependence. The barriers are obtained as two-dimensional Lagrangian Coherent Structures (LCSs) that create locally maximal deformation. Along hyperbolic LCSs, this deformation is induced by locally maximal normal repulsion or attraction. Along shear LCSs, the deformation is created by locally maximal tangential shear. Hyperbolic LCSs, therefore, play the role of generalized stable and unstable manifolds, while closed shear LCSs (elliptic LCSs) act as generalized KAM tori or KAM-type cylinders. All these barriers can be computed from our theory as explicitly parametrized surfaces. We illustrate our results by visualizing two-dimensional hyperbolic and elliptic barriers in steady and unsteady versions of the ABC flow.
description: Submitted to Physica D; Keywords: Mixing, Turbluence, Transport