cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
$2π$-flux loop semimetals
Creators: name: Li, Linhu
name: Chesi, Stefano
name: Yin, Chuanhao
name: Chen, Shu
Publisher: name: arXiv
Year: 2017
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We introduce a model of $2π$-flux loop semimetals which holds nodal loops described by a winding number $ν=2$. By adding some extra terms, this model can be transformed into a recently discovered Hopf-link semimetal, and the symmetries distinguishing these two phases are studied. We also propose a simpler physical implementation of $2π$-flux loops and of the Hopf-link semimetals which only involves nearest-neighbor hoppings, although in the presence of spin-orbit interaction. Finally, we investigate the Floquet properties of the $2π$-flux loop, and find that such a loop may be driven into two separated $π$-flux loops or four Weyl points by light with circular polarization in certain directions.
description: 5 pages, 5 figures
title: ADCO, Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Cart. 32 (G 136), 745 folios, f. 1366
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: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: cartulaire
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge

description: Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Archives départementales de la Côte-d'Or, Cart. 32 (G 136), 745 folios, f. 1366, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Archives départementales de la Côte-d'Or, Cart. 32 (G 136), 745 folios, f. 1366, 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
Brownian ratchets: How stronger thermal noise can reduce diffusion
Creators: name: Spiechowicz, Jakub
name: Kostur, Marcin
name: Łuczka, Jerzy
Publisher: name: arXiv
Year: 2017
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study diffusion properties of an inertial Brownian motor moving on a ratchet substrate, i.e. a periodic structure with broken reflection symmetry. The motor is driven by an unbiased time-periodic symmetric force which takes the system out of thermal equilibrium. For selected parameter sets, the system is in a non-chaotic regime in which we can identify a non-monotonic dependence of the diffusion coefficient on temperature: for low temperature, it initially increases as temperature grows, passes through its local maximum, next starts to diminish reaching its local minimum and finally it monotonically increases in accordance with the Einstein linear relation. Particularly interesting is the temperature interval in which diffusion is suppressed by thermal noise and we explain this effect in terms of transition rates of a three-state stochastic model.
description: In press in Chaos: An Interdisciplinary Journal of Nonlinear Science
On the roles of stress-triaxiality and strain-rate on the deformation behavior of AZ31 magnesium alloys
Creators: name: C. Kale
name: M. Rajagopalan
name: S. Turnage
name: B. Hornbuckle
name: K. Darling
name: S. N. Mathaudhu
name: K. N. Solanki
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Molecular Biology
subject: Biotechnology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy

description: The presence of complex states-of-stress and strain-rates directly influence the dominant deformation mechanisms operating in a given material under load. Mg alloys have shown limited ambient temperature formability due to the paucity of active slip-mechanisms, however, studies have focused on quasi-static strain-rates and/or simple loading conditions (primarily uniaxial or biaxial). For the first time, the influence of strain-rate and stress-triaxiality is utilized to unravel the active deformation mechanisms operating along the rolling, transverse- and normal-directions in wrought AZ31-alloy. It is discovered that the activation of various twin-mechanisms in the presence of multiaxial loading is governed by the energetics of the applied strain-rates. IMPACT STATEMENT It is shown for the first time that the higher deformation energy associated with dynamic strain-rates, coupled with high-triaxiality, promotes detwinning and texture evolution in HCP alloys with high c/a ratio.
A simple holographic scenario for gapped quenches
Creators: name: Lopez, Esperanza
name: del Bosch, Guillermo Milans
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct gravitational backgrounds dual to a family of field theories parameterized by a relevant coupling. They combine a non-trivial scalar field profile with a naked singularity. The naked singularity is necessary to preserve Lorentz invariance along the boundary directions. The singularity is however excised by introducing an infrared cutoff in the geometry. The holographic dictionary associated to the infrared boundary is developed. We implement quenches between two different values of the coupling. This requires considering time dependent boundary conditions for the scalar field both at the AdS boundary and the infrared wall.
description: 5 pages, 8 figures
CO2 sequestration by mineralisation of coal fly ash in aqueous systems
Creators: name: Ji, Long
Publisher: name: Macquarie University
Year: 2022
Subjects: Other education not elsewhere classified

description: Carbon dioxide (CO2) mineralisation by industrial wastes can mitigate carbon emissions safely and permanently with low cost. Disadvantages of coal fly ash-based CO2 mineralisation are low CO2 removal efficiency, slow reaction kinetics and low capacity, which restrict application of this technology. My research (i) explores mechanisms in coal fly ash-based CO2 mineralisation; and (ii) develops innovative approaches to enhance carbonation reactions and make them more technically and economically feasible. Five Chinese or Australian coal fly ashes were selected for carbonation experiments to understand fly ash properties affecting CO2 sequestration capacity and kinetics of carbonation reactions. A Chinese ash with 16 % CaO displayed the fastest kinetics while an Australian ash with 32 % CaO and 29 % MgO exhibited the largest CO2 capacity. Carbonation experiments investigated effects of temperature (20−220 °C), solid to liquid ratio (50−200 g/L), and additives (Na2CO3, NaHCO3 and NaCl) on CO2 capacity and reaction kinetics, and mechanisms involved in carbonation reactions. Parameter optimization and introduction of additives can improve carbonation efficiency and enhance carbonation reactions between fly ash and CO2, and the carbonation efficiency could become stable within 1.5 h, but it was still slow for further application. Integrated CO2 absorption−mineralisation, that integrates amine scrubbing, CO2 mineralisation and amine regeneration in a single process, was developed. Regeneration of amines by calcium oxide and fly ash was investigated. Results show that after carbonation reactions with calcium oxide and fly ash at 40 °C in 15 min, amine solutions can be regenerated to a similar CO2 loading compared to traditional thermal regeneration method, and that the CO2 absorbed by amine solutions can be precipitated as calcium carbonate with fast kinetics.
Fully gapped superconductivity with no sign change in the prototypical heavy-fermion CeCu2Si2
Creators: name: Yamashita, T.
name: Takenaka, T.
name: Tokiwa, Y.
name: Wilcox, J. A.
name: Mizukami, Y.
name: Terazawa, D.
name: Kasahara, Y.
name: Kittaka, S.
name: Sakakibara, T.
name: Konczykowski, M.
name: Seiro, S.
name: Jeevan, H. S.
name: Geibel, C.
name: Putzke, C.
name: Onishi, T.
name: Ikeda, H.
name: Carrington, A.
name: Shibauchi, T.
name: Matsuda, Y.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In exotic superconductors including high-$T_c$ copper-oxides, the interactions mediating electron Cooper-pairing are widely considered to have a magnetic rather than the conventional electron-phonon origin. Interest in such exotic pairing was initiated by the 1979 discovery of heavy-fermion superconductivity in CeCu$_2$Si$_2$, which exhibits strong antiferromagnetic fluctuations. A hallmark of unconventional pairing by anisotropic repulsive interactions is that the superconducting energy gap changes sign as a function of the electron momentum, often leading to nodes where the gap goes to zero. Here, we report low-temperature specific heat, thermal conductivity and magnetic penetration depth measurements in CeCu$_2$Si$_2$, demonstrating the absence of gap nodes at any point on the Fermi surface. Moreover, electron-irradiation experiments reveal that the superconductivity survives even when the electron mean free path becomes substantially shorter than the superconducting coherence length. This indicates that superconductivity is robust against impurities, implying that there is no sign change in the gap function. These results show that, contrary to long-standing belief, heavy electrons with extremely strong Coulomb repulsions can condense into a fully-gapped s-wave superconducting state, which has an on-site attractive pairing interaction.
description: 8 pages, 5 figures + Supplement (3 pages, 5 figures)
Numerical database of highly-resolved turbulent flame-wall interaction simulations for model validation
Creators: name: Zirwes, Thorsten
name: Zhang, Feichi
name: Steinhausen, Matthias
name: Habisreuther, Peter
name: Bockhorn, Henning
name: Hasse, Christian
name: Trimis, Dimosthenis
Publisher: name: Karlsruher Institut für Technologie (KIT)
Year: 2021

description: The interaction of flames with walls and subsequent flame quenching can be a major cause of pollutant formation in many practical combustion applications. Because of this, a better understanding of flamewall interaction phenomena is required to optimize future combustion systems. In this work, direct numerical simulations (DNS) are used to study flame-wall interaction of a stoichiometric methane-air flame in a turbulent channel flow. The simulation employs finite rate chemistry and a computational mesh with 200 million cells to resolve the flame-wall interaction without turbulence and combustion model assumptions. The turbulent flow is generated from a separate inert channel flow DNS with periodic boundary conditions. The inert channel flow simulation and the reactive flame-wall interaction simulation are run on the HoreKa cluster at the Karlsruhe Institute of Technology (KIT) and the Hawk supercomputer at the High Performance Computing Center Stuttgart (HLRS) on up to 32768 CPU cores. The simulation results are compiled into a numerical database, containing full three-dimensional data as well as sampling of flame and turbulence properties on two-dimensional cutting planes and onedimensional lines for model validation. In total, the database consists of 3.5 TB of data. The DNS resolves the smallest length scales in the turbulence-flame-wall interaction zone, so that the database is suitable for developing advanced turbulent combustion models considering the effect of FWI.
Controlling the topological sector of magnetic solitons in exfoliated Cr$_{1/3}$NbS$_2$ crystals
Creators: name: Wang, L.
name: Chepiga, N.
name: Ki, D. -K.
name: Li, L.
name: Li, F.
name: Zhu, W.
name: Kato, Y.
name: Ovchinnikova, O. S.
name: Mila, F.
name: Martin, I.
name: Mandrus, D.
name: Morpurgo, A. F.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate manifestations of topological order in monoaxial helimagnet Cr$_{1/3}$NbS$_2$ by performing transport measurements on ultra-thin crystals. Upon sweeping the magnetic field perpendicularly to the helical axis, crystals thicker than one helix pitch (48 nm) but much thinner than the magnetic domain size ($\sim$1 $μ$m) are found to exhibit sharp and hysteretic resistance jumps. We show that these phenomena originate from transitions between topological sectors with different number of magnetic solitons. This is confirmed by measurements on crystals thinner than 48 nm --in which the topological sector cannot change-- that do not exhibit any jump or hysteresis. Our results show the ability to deterministically control the topological sector of finite-size Cr$_{1/3}$NbS$_2$ and to detect inter-sector transitions by transport measurements.
description: 7 pages, 8 figures
Measurements of the nuclear modification factor and elliptic flow of leptons from heavy-flavour hadron decays in Pb--Pb collisions at $\sqrt{s_{\rm NN}}$ = 2.76 and 5.02 TeV with ALICE
Creators: name: de Godoy, Denise Moreira
Publisher: name: arXiv
Year: 2017
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We present the ALICE results on the nuclear modification factor and elliptic flow of electrons and muons from open heavy-flavour hadron decays at mid-rapidity and forward rapidity in Pb--Pb collisions at $\sqrt{s_{\rm NN}}$ = 2.76 and 5.02 TeV for different centrality intervals. The results are compared to model calculations that include interactions of heavy quarks with the medium.
description: 5 pages, 4 figures
Effect of dividend law changes and fair value accounting on dividend policy: evidence from Australia
Creators: name: Mithani, Safdar Razzak
Publisher: name: Macquarie University
Year: 2022
Subjects: Other education not elsewhere classified

description: This study examines the effect of fair value adjustments on firms' dividend distributions under two alternate dividend law settings, i.e. profit-test-based dividend law and net-assets-test based dividend law. This is important because both firms' dividend policy and fair value adjustments have an association with reported earnings. The study contributes to the literature by combining two variables, namely dividend law and fair value adjustments, to examine firms' dividend policy. Specifically, this thesis hypothesises that, (1) positive fair value adjustments have no distribution consequences under profit-test-based dividend law; and (2) that such adjustments are distributed under net-assets-test-based dividend law. The study uses Fama and Babiak's (1968) variation of Lintner's (1956) model and a sample of 185 ASX-listed financial sector firms with 1,496 firm-year observations to test the two hypotheses. The sample period of nine financial years from 2005−06 to 2013−14 enables an analysis in both dividend law settings because Australia changed from profit-test-based dividend law to net-assets-test-based dividend law in July 2010. Under the profit-test-based dividend law, contrary to the expectations, the results show that positive fair value adjustments are distributed. Managers' inability to differentiate between persistent and transitory fair value adjustments amid non-consideration of transitory nature of fair value adjustments, while setting dividend policy, provide some explanation of the results. Under the net-assets-test-based dividend law, the study expects, but did not find any effect of positive fair value adjustments on firms' dividend payouts. Firms' preference to pursue conservative dividend policy and to attach dividend payouts with permanent earnings, provide some explanation of the findings. The results show that the statutory detachment of earnings and dividends under net-assets-test-based dividend law has not affected the conventional link between these two variables.
Bow Ties in the Sky II: Searching for Gamma-ray Halos in the Fermi Sky Using Anisotropy
Creators: name: Tiede, Paul
name: Broderick, Avery E.
name: Shalaby, Mohamad
name: Pfrommer, Christoph
name: Puchwein, Ewald
name: Chang, Philip
name: Lamberts, Astrid
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Many-degree-scale gamma-ray halos are expected to surround extragalactic high-energy gamma ray sources. These arise from the inverse Compton emission of an intergalactic population of relativistic electron/positron pairs generated by the annihilation of >100 GeV gamma rays on the extragalactic background light. These are typically anisotropic due to the jetted structure from which they originate or the presence of intergalactic magnetic fields. Here we propose a novel method for detecting these inverse-Compton gamma-ray halos based upon this anisotropic structure. Specifically, we show that by stacking suitably defined angular power spectra instead of images it is possible to robustly detect gamma-ray halos with existing Fermi Large Area Telescope (LAT) observations for a broad class of intergalactic magnetic fields. Importantly, these are largely insensitive to systematic uncertainties within the LAT instrumental response or associated with contaminating astronomical sources.
description: Submitted to ApJ, 22 pages, 27 figures, 9 pages in appendix
On the roles of stress-triaxiality and strain-rate on the deformation behavior of AZ31 magnesium alloys
Creators: name: C. Kale
name: M. Rajagopalan
name: S. Turnage
name: B. Hornbuckle
name: K. Darling
name: S. N. Mathaudhu
name: K. N. Solanki
Publisher: name: Taylor & Francis
Year: 2017
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Molecular Biology
subject: Biotechnology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy

description: The presence of complex states-of-stress and strain-rates directly influence the dominant deformation mechanisms operating in a given material under load. Mg alloys have shown limited ambient temperature formability due to the paucity of active slip-mechanisms, however, studies have focused on quasi-static strain-rates and/or simple loading conditions (primarily uniaxial or biaxial). For the first time, the influence of strain-rate and stress-triaxiality is utilized to unravel the active deformation mechanisms operating along the rolling, transverse- and normal-directions in wrought AZ31-alloy. It is discovered that the activation of various twin-mechanisms in the presence of multiaxial loading is governed by the energetics of the applied strain-rates. IMPACT STATEMENT It is shown for the first time that the higher deformation energy associated with dynamic strain-rates, coupled with high-triaxiality, promotes detwinning and texture evolution in HCP alloys with high c/a ratio.
Scale-Invariant Hidden Local Symmetry, Topology Change and Dense Baryonic Matter II
Creators: name: Paeng, Won-Gi
name: Kuo, Thomas T. S.
name: Lee, Hyun Kyu
name: Ma, Yong-Liang
name: Rho, Mannque
Publisher: name: arXiv
Year: 2017
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Exploiting certain robust topological inputs from the skyrmion description of compressed baryonic matter with a scale-chiral symmetric Lagrangian, we predict the equation of state that is consistent with the properties of nuclear matter at the equilibrium density, supports the maximum mass of massive compact star $\sim 2 M_\odot$ and surprisingly gives the sound velocity close to the "conformal velocity" $1/\sqrt{3}$ at densities $\gtrsim 3 n_0$. At the core of this result is the observation that parity-doubling occurs in the nucleon structure as density goes above $\sim 2n_0$ with a chiral-singlet mass $m_0 \sim (0.6-0.9) m_N$, hinting at a possible up-to-date unsuspected source of proton mass and an emergence at high density of scale symmetry and flavor local symmetry, both hidden in the QCD vacuum.
description: 31 pages, 11 figures
Serological and Molecular Investigation of Brucella Species in Dogs in Pakistan
Creators: name: Jamil, Tariq
name: Melzer, Falk
name: Khan, Iahtasham
name: Iqbal, Mudassar
name: Saqib, Muhammad
name: Hammad Hussain, Muhammad
name: Schwarz, Stefan
name: Neubauer, Heinrich
Publisher: name: Freie Universität Berlin
Year: 2019
Subjects: subject: Dogs
subject: Brucella abortus
subject: Brucella canis
subject: zoonosis
subject: Pakistan
subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit::616 Krankheiten

description: Brucellosis is an important bacterial zoonosis caused by B. abortus and B. melitensis in Pakistan. The status of canine brucellosis caused by B. canis remains obscure. In total, 181 serum samples were collected from stray and working dogs in two different prefectures viz. Faisalabad (n = 87) and Bahawalpur (n = 94). Presence of antibodies against B. canis and B. abortus/B. melitensis was determined using the slow agglutination test (SAT) and ELISA, respectively. Real-time PCR was performed to detect and differentiate Brucella DNA at the species level. In Faisalabad, the serological prevalence was found to be 9.2% (8/87) and 10.3% (9/87) by SAT and ELISA, respectively. Only one of the ELISA positive samples (1.15%) yielded amplification for B. abortus DNA. In Bahawalpur, 63.8% (60/94) samples were found positive by SAT; however, none of the samples was positive by ELISA or by real-time PCR. Location, age (≥1 year) and body condition (weak) were found to be associated with B. canis infection, whereas presence of wounds was found to be associated with B. abortus infection only. These findings point towards a risk of transmission from dog to livestock and humans and vice versa. The study expects to draw the attention of concerned authorities towards infection prevention and animal welfare. This study warrants further epidemiological investigation on brucellosis in pet dogs and their owners. To the best of our knowledge, this is first ever report on B. canis and B. abortus in dogs in Pakistan.
Nangallenes A and B, halogenated nonterpenoid C15-acetogenins from the Bornean red alga Laurencia nangii
Creators: name: Kamada, Takashi
name: Chin-Soon Phan
name: Vairappan, Charles S.
Publisher: name: Taylor & Francis
Year: 2017
Subjects: subject: Biochemistry
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Marine Biology
subject: Inorganic Chemistry
subject: Plant Biology
subject: 60506 Virology

description: Two new halogenated nonterpenoids C15-acetogenins, nangallenes A-B (1–2), together with two known halogenated compounds itomanallene A (3) and 2,10-dibromo-3-chloro-α-chamigrene (4), were isolated and identified from the organic extract of the marine red alga Laurencia nangii Masuda collected from the coastal waters in Semporna, Borneo. Their structures were established by means of spectroscopic analysis including IR, high-resolution electrospray ionization mass spectrometry (HRESI-MS), and 1D and 2D NMR techniques. All these metabolites were submitted for the antifungal assay against four species of selected marine fungi. Compounds 1–4 showed potent activity against Haliphthoros sabahensis and Lagenidium thermophilum.
Average value of the cosmic ray injection exponent at Galactic sources
Creators: name: Lagutin, Anatoly
name: Volkov, Nikolay
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The energy spectrum of high energy cosmic rays emitted by sources change during propagation in the Galaxy. Using the spectrum observed at the Earth and two different transport models, based on anomalous and normal diffusion equations, we have retrieved an average value of the cosmic ray injection exponent at Galactic sources taking into account the inhomogeneity of the interstellar medium. We have shown that the average value of the injection index $p$, obtained in the framework of both transport models, equals to $p\sim (2.8-3.0)$.
description: 4 pages, 2 figures. 19th International Symposium on Very High Energy Cosmic Ray Interactions (22-27 August 2016). Moscow, Russia. P.N. Lebedev Physical Institute of the Russian Academy of Sciences (LPI RAS)
title: Appel à projet amorce des ATRI 2012
Creators: name: LabexMed
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2017

description: Appel à projet amorce des Ateliers Thématiques de Recherche Interdisciplinaire de 2012
title: รูปแบบการบริหารแรงงานทางด้านการบัญชีของธุรกิจขนาดกลางขนาดย่อม ในกรุงเทพมหานคร
Creators: name: รุ่งอรุณ กระแสร์สินธุ์
Publisher: name: สถาบันเทคโนโลยีนวัตกรรมทางการศึกษาและการวิจัยแห่งสุวรรณภูมิ (สนว.)
publisherIdentifierScheme: ROR
Year: 2025
Subjects: รูปแบบการบริหาร
แรงงานทางด้านการบัญชี
ธุรกิจขนาดกลางขนาดย่อม

description: วารสารนวัตกรรมการศึกษาและการวิจัย, 9, 1, 303-319
Radio and X-ray properties of the source G29.37+0.1 linked to HESS J1844-030
Creators: name: Castelletti, G.
name: Supan, L.
name: Petriella, A.
name: Giacani, E.
name: Joshi, B. C.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Using observations carried out with the GMRT, we performed high-quality full-synthesis imaging at 610 MHz of the source G29.37+0.1, which is an as-yet-unclassified object linked to the TeV source HESS J1844-030. These data, combined with observations at 1400 MHz from MAGPIS were used to investigate the properties of its radio emission. Additionally, we reprocessed XMM-Newton and Chandra archival data. G29.37+0.1 mainly consists of a bright twisted structure, named the S-shaped feature. The high sensitivity of the new GMRT observations allowed the identification of potential lobes, jets, and a nuclear central region in the S-shaped morphology of G29.37+0.1. We also highlight the detection of diffuse and low surface brightness emission enveloping the brightest emitting regions. The brightest emission in G29.37+0.1 has a radio synchrotron spectral index 0.59+/-0.09. Variations in the spectral behavior are observed across the whole radio source with the flattest spectral features in the central nuclear and jets components (alpha~0.3). These results lead us to conclude that the brightest radio emission from G29.37+0.1 likely represents a newly recognized radio galaxy. The identification of optical and infrared counterparts to the emission from the core of G29.37+0.1 strengthens our interpretation of an extragalactic origin of the radio emission. Our spectral analysis demonstrated that a non-thermal origin for the X-ray emission compatible with a pulsar wind nebula is quite possible. The analysis of the spatial distribution of the CO gas revealed the presence of a complex of molecular clouds located in projection adjacent to the radio halo emission and probably interacting with it. We propose that the faint halo represents a composite supernova remnant with a pulsar powered component given by the diffuse X-ray emission superimposed along the line of sight to the radio galaxy.
description: 12 figures, accepted to be published in Astronomy and Astrophysics Main Journal
Modeling the full length HIV-1 Gag polyprotein reveals the role of its p6 subunit in viral maturation and the effect of non-cleavage site mutations in protease drug resistance
Creators: name: Su, Chinh Tran-To
name: Chee-Keong Kwoh
name: Verma, Chandra Shekhar
name: Gan, Samuel Ken-En
Publisher: name: Taylor & Francis
Year: 2017
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Hematology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology
subject: Computational Biology

description: HIV polyprotein Gag is increasingly found to contribute to protease inhibitor resistance. Despite its role in viral maturation and in developing drug resistance, there remain gaps in the knowledge of the role of certain Gag subunits (e.g. p6), and that of non-cleavage mutations in drug resistance. As p6 is flexible, it poses a problem for structural experiments, and is hence often omitted in experimental Gag structural studies. Nonetheless, as p6 is an indispensable component for viral assembly and maturation, we have modeled the full length Gag structure based on several experimentally determined constraints and studied its structural dynamics. Our findings suggest that p6 can mechanistically modulate Gag conformations. In addition, the full length Gag model reveals that allosteric communication between the non-cleavage site mutations and the first Gag cleavage site could possibly result in protease drug resistance, particularly in the absence of mutations in Gag cleavage sites. Our study provides a mechanistic understanding to the structural dynamics of HIV-1 Gag, and also proposes p6 as a possible drug target in anti-HIV therapy.
Structural and functional analysis of GUN4 and ChlH subunits of the magnesium chelatase enzyme
Creators: name: Tabrizi, Shabnam Tarahi
Publisher: name: Macquarie University
Year: 2022
Subjects: Other education not elsewhere classified

description: In plants and algae the Genomes Uncoupled 4 (GUN4) is a nuclear-encoded, chloroplast localized, porphyrin binding protein implicated in retrograde signaling between the chloroplast and nucleus. Functionally, it enhances Mg-chelatase activity, the enzyme that inserts magnesium into protoporphyrin IX (PPIX) in the chlorophyll biosynthesis pathway, possibly through the removal of Mg protoporphyrin IX (Mg-PPIX) the product of the reaction. Our in vitro results show that purified GUN4 increases the production of PPIX-generated singlet oxygen in the light by a factor of five compared with PPIX alone. Additionally the functional GUN4-PPIX-ChlH complex and GUN4-Mg-PPIX generate singlet oxygen at a reduced rate compared with GUN4-PPIX. Recent evidence points to singlet oxygen being a possible plastid to nucleus signal, possibly through second messengers. The light dependent singlet oxygen generation by GUN4-PPIX may be part of a signal transduction pathway from the chloroplast to the nucleus which senses the availability and flux of PPIX through the chlorophyll biosynthetic pathway in order to control the concentrations of enzymes and chlorophyll binding proteins in the chloroplast. Additionally, unlike the cyanobacterial GUN4, the chloroplastic orthologues have an extra C-terminal domain that is phosphorylated and is required for magnesium chelatase activity. The low resolution solution structure of full length GUN4 at ~20 Å was determined, by using small-angle X-ray scattering (SAXS) and report that the protein has a more elongated structure compared to the cyanobacterial protein. Also, the first crystal structure of truncated eukaryotic GUN4 from Chlamydomonas reinhardtii was solved. The structure is in broad agreement with those of previously solved cyanobacterial structures. Most interestingly, conformational divergence is restricted to several loops which cover the porphyrin-binding cleft. The conformational dynamics suggested by this ensemble of structures lend support to our understanding of how GUN4 binds PPIX or Mg-PPIX.
Current-induced switching of magnetic molecules on topological insulator surfaces
Creators: name: Locane, Elina
name: Brouwer, Piet W.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Electrical currents at the surface or edge of a topological insulator are intrinsically spin-polarized. We show that such surface/edge currents can be used to switch the orientation of a molecular magnet weakly coupled to the surface or edge of a topological insulator. For the edge of a two-dimensional topological insulator as well as for the surface of a three-dimensional topological insulator the application of a well-chosen surface/edge current can lead to a complete polarization of the molecule if the molecule's magnetic anisotropy axis is appropriately aligned with the current direction. For a generic orientation of the molecule a nonzero but incomplete polarization is obtained. We calculate the probability distribution of the magnetic states and the switching rates as a function of the applied current.
description: 8+5 pages, 8 figures
Note Illustrative della Carta geologica d'Italia alla scala 1:50.000 F. 217 Neviano degli Arduini, Servizio Geologico d'Italia - ISPRA
Creators: name: Cerrina Feroni, A.
name: Ottria, G.
name: Vescovi, P.
Publisher: name: INFN Open Access Repository
Year: 2024
Subjects: carta geologica
Neviano degli Arduini
Emilia-Romagna
Pianura Padana
CARG
stratigrafia
tettonica
sottosuolo
geological map
stratigraphy
tectonics
subsurface

description: Note illustrative redatte per il Foglio geologico n. 217 Neviano degli Arduini della Carta Geologica d'Italia alla scala 1:50.000. 112 pp.
null Wirkung von grünem Tee und Matchatee, sowie ihrer Bestandteile Epigallocatechingallat und Quercetin auf MCF-7- und MDA-MB-231-Brustkarzinomzellen
Creators: name: Marahrens, Philip
Publisher: name: Universität Rostock
Year: 2019
Subjects: subject: 610 Medical sciences Medicine

description: Es konnte in dieser Arbeit bestätigt werden, dass EGCG und Quercetin in grünem Tee enthalten sind und sowohl die Einzelsubstanzen als auch der grüne Tee selbst eine antikarzinogene Wirkung, sowohl auf etsrogenrezeptor-positive als auch -negative Brustkarzinomzellen haben. Auch für Tamoxifen konnte diese Wirkung für beide Zellreihen nachgewiesen werden. Diese Ergebnisse lassen die Schlussfolgerung zu, dass die Wirkungen nicht bzw. nicht nur über die Estrogenrezeptoren generiert werden.
Quantum stresses in the hydrogen atom
Creators: name: Freese, Adam
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Gravitational form factors are often interpreted as providing access to stresses inside hadrons, in particular through Fourier transforms of the form factors $D$ and $\bar{c}$. Some researchers, however, have expressed skepticism of this interpretation. I revisit the question, and argue that it is indeed appropriate to interpret these quantities as stress distributions. I consider the hydrogen atom's ground state as a familiar example, and use the pilot wave interpretation of quantum mechanics to give the distributions a clear meaning. A striking result is that $\bar{c}$ -- rather than $D$ -- quantifies the force law binding the system, which can be understood through Cauchy's first law of motion.
description: 17 pages, 5 figures
Deontics
Creators: name: Stevanovic, Melisa
Publisher: name: OSF
Year: 2022
Subjects: Conversation Analysis
Encyclopedia
Ethnomethodology
Interactional Linguistics

description: Deontics is a topic of conversation-analytic inquiry, focusing on how participants’ rights to determine action are oriented to and drawn upon, as observable in the ways in which the participants design their actions and organize them as sequences of action. In focusing on participants’ orientations to what “ought-to-be”—what will be forbidden, obligatory, or permissible (the ancient Greek word deon, “that which is binding”), research in deontics contributes to the filling of the traditional gap between conversation analysis and the sociological theorizing of power and authority (Stevanovic 2018).
Flavour anomalies on the eve of the Run-2 verdict
Creators: name: Guadagnoli, Diego
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The RK measurement by LHCb suggests non-standard lepton-universality violation (LUV) to occur in b to s l+ l- decays, with effects in muons rather than electrons. It is intriguing that a number of other measurements of b to s l+ l- transitions by LHCb and B-factories are consistent in magnitude and sign with the RK effect, and fit a coherent effective-theory picture. Further indications of non-standard LUV are provided by the long-standing discrepancies in b to c tau nu transitions via the ratios R(D) and R(D^*). We review in detail the experimental situation and its rich outlook, the theoretical efforts -- and their challenges -- towards convincing dynamics beyond the effective-theory level, and discuss the many directions of further investigation that propagate from the current situation.
description: 14 pages. Preprint of invited short review for MPLA (World Scientific). Matches journal version. See http://www.worldscientific.com/worldscinet/mpla
Pseudorapidity profile of transverse momentum fluctuations in heavy ion collisions
Creators: name: Chatterjee, Sandeep
name: Bozek, Piotr
Publisher: name: arXiv
Year: 2017
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We investigate pseudorapidity correlations of the average transverse flow of particles emitted in relativistic heavy-ion collisions. We employ 3+1 dimensional viscous relativistic hydrodynamics with initial conditions from the quark Glauber Monte Carlo model to confront the recent measurements on the pseudorapidity correlations of the transverse momentum fluctuations in Pb+Pb collisions at $\sqrt{s_{NN}}=2760$GeV. We find good agreement between the model predictions and data. Further, we study two other observables build with the covariance of the average transverse momentum in different rapidity bins. These observables have better stability under various systematics, thus allowing for a robust comparison between data and model. The transverse flow-transverse flow correlation coefficient is directly related to correlations of the underlying collective flow at different pseudorapidities. The 3-bin measure of $p_T$ factorization breaking in pseudorapidity gives an estimate of possible decorrelation of the average transverse flow in the longitudinal direction.
Biomechanical characteristics of the osteoarthritis knee
Creators: name: Naim, James
Publisher: name: Macquarie University
Year: 2022
Subjects: Other education not elsewhere classified

description: Biomechanical characteristics of the osteoarthritis knee joint is an area of increasing interest in clinical studies. Prevalence of knee osteoarthritis is on the rise across the globe, a ststistic particularly shared in Australia. The biomechanical characteristics include the joint angles and joint moments of the knee that be measured from a subject by the process of gait analysis. Gait analysis requires a motion capture system and a force plate system where the inverse kinematics and the inverse dynamics of the gait data obtained can be calculated. Data processing is a key element of theis report which requires the relevant information to be accurately and efficiently processed. Filtering techniques are implemented within this study to reduce the noise and increase the accuracy of the results.
Connected numbers and the embedded topology of plane curves
Creators: name: Shirane, Taketo
Publisher: name: arXiv
Year: 2017
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: The splitting number of a plane irreducible curve for a Galois cover is effective to distinguish the embedded topologies of plane curves. In this paper, we define a connected number of any plane curve for a Galois cover whose branch divisor has no common components with the plane curve, which is similar to the splitting number. We classify the embedded topology of Artal arrangements of degree $b\geq 4$ by the connected number, where an Artal arrangement of degree $b$ is a plane curve consisting of one smooth curve of dgree $b$ and three total inflectional tangents.
description: 12 pages
Contributions to cryptanalysis: design and analysis of cryptographic hash functions
Creators: name: Sokołowski, Przemysław Szczepan
Publisher: name: Macquarie University
Year: 2022
Subjects: Other education not elsewhere classified

description: "A cryptographic hash function is a mechanism producing a fixed-length output of a message of arbitrary length. It fullfils a collection of security requirements guaranteeing that a hash function does not introduce any weakness into the system to which it is applied. The example applications of cryptographic hash functions include digital signatures and message authentication codes. This thesis analyzes cryptographic hash functions and studies the design principles in the construction of secure cryptographic hash functions. We investigate the problem of building hash functions from block ciphers and the security properties of different structures used to design compression functions. We show that we can build open-key differential distinguishers for Crypton, Hierocrypt-3, SAFER++ and Square. We know that our attack on SAFER++ is the first rebound attack with standard differentials. To demonstrate the efficiency of proposed distinguishers, we provide formal proof of a lower bound for finding a differential pair that follows a truncated differential in the case of a random permutation. Our analysis shows that block ciphers used as the underlying primitive should also be analyzed in the open-key model to prevent possible collision attacks. We analyze the IDEA-based hash functions in a variety of cipher modes. We present practical complexity collision search attacks and preimage attacks, where we exploit a null weak-key and a new non-trivial property of IDEA. We prove that even if a cipher is considered secure in the secret-key model, one has to be very careful when using it as a building block in the hashing modes. Finally, we investigate the recent rotational analysis. We show how to extend the rotational analysis to subtractions, shifts, bit-wise Boolean functions, multi additions and multi subtractions. In particular, we develop formulae for calculation of probabilities of preserving the rotation property for multiple modular additions and subtractions. We examine S-functions and its application to the rotational analysis. The findings are applied to BMW and SIMD. We also propose a new shift distinguisher and apply it to Shabal.
ความรู้ พฤติกรรมเสี่ยง และความชุกของโรคพยาธิใบไม้ตับ จังหวัดยโสธร
Creators: name: วิวัฒน์ วิริยกิจจา
Publisher: name: สำนักจัดการความรู้ กรมควบคุมโรค กระทรวงสาธารณสุข
Year: 2557
Subjects: ความรู้
พฤติกรรมเสี่ยง
ความชุกของโรคพยาธิใบไม้ตับ

description: วารสารควบคุมโรค, 40, 2, 179-190
α-glucosidase inhibitors isolated from Mimosa pudica L.
Creators: name: S. T. Tasnuva
name: U. A. Qamar
name: Ghafoor, Kashif
name: F. Sahena
name: M. H. A. Jahurul
name: A. H. Rukshana
name: M. J. Juliana
name: Al-Juhaimi, Fahad Y.
name: L. Jalifah
name: K. C. A. Jalal
name: Md. Eaqub Ali
name: I. S. M. Zaidul
Publisher: name: Taylor & Francis
Year: 2017
Subjects: subject: Biochemistry
subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: The aim of the study was to isolate digestive enzymes inhibitors from Mimosa pudica through a bioassay-guided fractionation approach. Repeated silica gel and sephadex LH 20 column chromatographies of bioactive fractions afforded stigmasterol, quercetin and avicularin as digestive enzymes inhibitors whose IC50 values as compared to acarbose (351.02 ± 1.46 μg mL−1) were found to be as 91.08 ± 1.54, 75.16 ± 0.92 and 481.7 ± 0.703 μg mL−1, respectively. In conclusion, M. pudica could be a good and safe source of digestive enzymes inhibitors for the management of diabetes in future. Antidiabetic active principles (stigmasterol, quercetin, avicularin) isolated from neglected weed Mimosa pudica
NbN/AlN/NbN Josephson junctions on sapphire for receiver applications
Creators: name: Merker, M.
name: Bohn, C.
name: Völlinger, M.
name: Ilin, K.
name: Siegel, M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The most developed integrated receivers for THz radiation nowadays are based on Josephson junction SIS devices. In this kind of devices, the highest receivable frequency is determined by the energy gap of the superconducting electrodes and limited to approximately 700 GHz in case of Nb/AlOx/Nb multilayers. We have developed a technology for NbN/AlN/NbN Josephson junctions on sapphire substrates which allow operation at frequencies above 1 THz. The trilayers are deposited in-situ in a 3-chamber DC-magnetron sputtering system at temperatures as high as 775 °C. Each layer is reactively sputtered in an argon and nitrogen atmosphere. By variation of the partial gas pressures and discharge current of the plasma, optimum deposition conditions for the tri-layers were found. So far, gap voltages as high as 5.1 mV at 4.2 K have been achieved which allows the operation frequency of the JJ devices to exceed 1 THz.
Spatial Integration by a Dielectric Slab Waveguide and its Planar Graphene-based Counterpart
Creators: name: Zangeneh-Nejad, Farzad
name: Khavasi, Amin
Publisher: name: arXiv
Year: 2017
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Motivated by the recent progress in analog computing [Science 343, 160 (2014)], a new approach to perform spatial integration is presented using a dielectric slab waveguide. Our approach is indeed based on the fact that the transmission coefficient of a simple dielectric slab waveguide at its mode excitation angle matches the Green's function of first order integration. Inspired by the mentioned dielectric-based integrator, we further demonstrate its graphene-based counterpart. The latter is not only reconfigurable but also highly miniaturized in contrast to the previously reported designs [Opt. Commun. 338, 457 (2015)]. Such integrators have the potential to be used in ultrafast analog computation and signal processing.