cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The obstructed jet in Mrk 231
Creators: name: Wang, Ailing
name: An, Tao
name: Jaiswal, Sumit
name: Mohan, Prashanth
name: Wang, Yuchan
name: Baan, Willem A.
name: Zhang, Yingkang
name: Yang, Xiaolong
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Mrk~231 is the closest radio-quiet quasar known and one of the most luminous infrared galaxies in the local Universe. It is characterised by the co-existence of a radio jet and powerful multi-phase multi-scale outflows, making it an ideal laboratory to study active galactic nucleus (AGN) feedback. We analyse the multi-epoch very long baseline interferometry data of Mrk~231 and estimate the jet head advance speed to be $\lesssim0.013\ c$, suggesting a sub-relativistic jet flow. The jet position angle changes from $-113^\circ$ in the inner parsec to $-172^\circ$ at a projected distance of 25 parsec. The jet structure change might result from either a jet bending following the rotation of the circum-nuclear disc or the projection of a helical jet on the plane of the sky. In the large opening angle ($\sim60^\circ$) cone, the curved jet interacts with the interstellar medium and creates wide-aperture-angle shocks which subsequently dissipate a large portion of the jet power through radiation and contribute to powering the large-scale outflows. The low power and bent structure of the Mrk~231 jet, as well as extensive radiation dissipation, are consistent with the obstruction of the short-length jet by the host galaxy's environment.
description: 8 pages, 3 figures. Acceptance for publication in MNRAS
Spanning Tree Constrained Determinantal Point Processes are Hard to (Approximately) Evaluate
Creators: name: Matsuoka, Tatsuya
name: Ohsaka, Naoto
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: We consider determinantal point processes (DPPs) constrained by spanning trees. Given a graph $G=(V,E)$ and a positive semi-definite matrix $\mathbf{A}$ indexed by $E$, a spanning-tree DPP defines a distribution such that we draw $S\subseteq E$ with probability proportional to $\det(\mathbf{A}_S)$ only if $S$ induces a spanning tree. We prove $\sharp\textsf{P}$-hardness of computing the normalizing constant for spanning-tree DPPs and provide an approximation-preserving reduction from the mixed discriminant, for which FPRAS is not known. We show similar results for DPPs constrained by forests.
Detecting non-Abelian Statistics with Electronic Mach-Zehnder Interferometer
Creators: name: Feldman, D. E.
name: Kitaev, Alexei
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Fractionally charged quasiparticles in the quantum Hall state with filling factor $ν=5/2$ are expected to obey non-Abelian statistics. We demonstrate that their statistics can be probed by transport measurements in an electronic Mach-Zehnder interferometer. The tunneling current through the interferometer exhibits a characteristic dependence on the magnetic flux and a non-analytic dependence on the tunneling amplitudes which can be controlled by gate voltages.
description: 4 pages, 2 figures; Revtex; a discussion of the asymmetry of the I-V curve added
p$^\dagger$q: A tool for prototyping many-body methods for quantum chemistry
Creators: name: Rubin, Nicholas C.
name: DePrince, A. Eugene
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: p$^\dagger$q is a C++ accelerated Python library designed to generate equations for many-body quantum chemistry methods and to realize proof-of-concept implementations of these equations for rapid prototyping. Central to this library is a simple interface to define strings of second-quantized creation and annihilation operators and to bring these strings to normal order with respect to either the true vacuum state or the Fermi vacuum. Tensor contractions over fully-contracted strings can then be evaluated using standard Python functions ({\em e.g.}, \np's einsum). Given one- and two-electron integrals these features allow for the rapid implementation and assessment of a wide array of many-body quantum chemistry methods.
Time-dependent current-density functional theory for the friction of ions in an interacting electron gas
Creators: name: Nazarov, V. U.
name: Pitarke, J. M.
name: Takada, Y.
name: Vignale, G.
name: Chang, Y. -C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Due to the strongly nonlocal nature of $f_{xc}({\bf r},{\bf r}',ω)$ the {\em scalar} exchange and correlation (xc) kernel of the time-dependent density-functional theory (TDDFT), the formula for Q the friction coefficient of an interacting electron gas (EG) for ions tends to give a too large value of Q for heavy ions in the medium- and low-density EG, if we adopt the local-density approximation (LDA) to $f_{xc}({\bf r},{\bf r}',ω)$, even though the formula itself is formally exact. We have rectified this unfavorable feature by reformulating the formula for Q in terms of the {\em tensorial} xc kernel of the time dependent current-density functional theory, to which the LDA can be applied without intrinsic difficulty. Our numerical results find themselves in a considerably better agreement with the experimental stopping power of Al and Au for slow ions than those previously obtained within the LDA to the TDDFT.
description: 26 pages, 3 figures
Τρομοκρατία στα δυστοπικά νεανικά μυθιστορήματα των Cory Doctorow, Little Brother (2008) και Sam Mills, Blackout (2010)
Creators: name: Καραβοκύρη, Αγγελική Μιχαήλ
Publisher: name: Aristotle University of Thessaloniki
Year: 2017
Subjects: Κριτική δυστοπία
Νεανική λογοτεχνία
Τρομοκρατία
Critical dystopia
Young adult novels
Terrorism

description: Μέσα από την εργασία αυτή, επιχειρούμε να συσχετίσουμε τον κόσμο της Αγγλόφωνης δυστοπικής νεανικής λογοτεχνίας με την προσέγγιση του φαινομένου της τρομοκρατίας στον 21ο αιώνα, θέτοντας ως ορόσημο τις επιθέσεις της 9/11 στην Αμερική. Ταραγμένος και ασταθής, ο εφηβικός κόσμος συγκρούεται στα νεανικά δυστοπικά μυθιστορήματα με εξίσου ταραγμένους και βίαιους κόσμους. Μέσα από την εργασία αυτή και με τη βοήθεια συγκριτολογικών εργαλείων θα εξερευνήσουμε το Blackout (2010) της Βρετανίδας Sam Mills και το Little Brother (2008) του Καναδού Cory Doctorow, με σκοπό τη σκιαγράφηση της υποκειμενικότητας και της ατομικής δράσης των χαρακτήρων, της δόμησής τους σε σχέση με την τρομοκρατία, καθώς και της προσέγγισης των πολιτικών ζητημάτων της βίας, του κρατικού ελέγχου, των πολιτικών ελευθεριών και της κοινωνικής ευθύνης για την μάχη κατά του φόβου και της ρητορικής που τον ενδυναμώνει. Για το λόγο αυτό, ανατρέχουμε παράλληλα με τα δυστοπικά στοιχεία των δυτικών κοινωνιών των μυθιστορημάτων – αμερικανική και βρετανική – στην πρόσφατη πολιτική πραγματικότητα. Στόχος μας είναι να μελετήσουμε εάν οι αναπαραστάσεις της τρομοκρατίας μέσα από τη δυστοπική κριτική γραφή μπορούν να γίνουν αντικείμενο πολιτικής, κοινωνικής και πολιτισμικής επεξεργασίας για την υπέρβαση του φόβου και της βίας
description: This thesis is an attempt to correlate the world of the dystopian young adult literature with the phenomenon of terrorism in the 21st century, setting as a milestone the attacks of 9/11 in the U.S. In the dystopian young adult novels, the unstable and tormented teenage world collides with equally tormented and violent worlds. Using a comparative literary approach, we examine in Sam Mills’s Blackout (2010) and Cory Doctorow’s Little Brother (2008) the construction of subjectivity and individual action as well as the way they are connected to the notion of terrorism. Furthermore, we underline the political matters of violence, state control, civil liberties and the social responsibility to battle against fear and the rhetoric that strengthens it. Our aim is to examine whether the representations of terrorism, as it appears in the critical dystopian novels under examination, can be a vehicle for the political, social and cultural processing of the phenomenon in addition to the overcoming of violence, fear and violence
The cold circumgalactic medium in emission: MgII halos in TNG50
Creators: name: Nelson, Dylan
name: Byrohl, Chris
name: Peroux, Celine
name: Rubin, Kate H. R.
name: Burchett, Joseph N.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We outline theoretical predictions for extended emission from MgII, tracing cool ~10^4 K gas in the circumgalactic medium (CGM) of star-forming galaxies in the high-resolution TNG50 cosmological magnetohydrodynamical simulation. We synthesize surface brightness maps of this strong rest-frame ultraviolet metal emission doublet (2796, 2803), adopting the assumption that the resonant scattering of MgII can be neglected and connecting to recent and upcoming observations with the Keck/KCWI, VLT/MUSE, and BlueMUSE optical integral field unit spectrographs. Studying galaxies with stellar masses 7.5 < log(M*/M_sun) < 11 at redshifts z=0.3, 0.7, 1 and 2 we find that extended MgII halos in emission, similar to their Lyman-alpha counterparts, are ubiquitous across the galaxy population. Median surface brightness profiles exceed 10^-19 erg/s/cm^2/arcsec^2 in the central ~10s of kpc, and total halo MgII luminosity increases with mass for star-forming galaxies, reaching 10^40 erg/s for M* ~ 10^9.5 Msun. MgII halo sizes increase from a few kpc to > 20 kpc at the highest masses, and sizes are larger for halos in denser environments. MgII halos are highly structured, clumpy, and asymmetric, with isophotal axis ratio increasing with galaxy mass. Similarly, the amount and distribution of MgII emission depends on the star formation activity of the central galaxy. Kinematically, inflowing versus outflowing gas dominates the MgII luminosity at high and low galaxy masses, respectively, although the majority of MgII halo emission at z~0.7 traces near-equilibrium fountain flows and gas with non-negligible rotational support, rather than rapidly outflowing galactic winds.
description: MNRAS 2021, comments welcome
Production and consumption of organic carbon and oxygen in Sechelt Inlet, British Columbia
Creators: name: Timothy, David Andrew
Publisher: name: University of British Columbia
Year: 2009

description: In an effort to better understand the relationships of hydrodynamic, biological and chem ical processes in British Columbia fjords, multi-disciplinary oceanographic data were col lected from Sechelt Inlet between the end of January and the end of June, 1991. The purpose of this thesis is to provide depth dependent rates of oxygen production and consumption. Oxygen dynamics are inferred from changes in organic carbon content. Autotrophic ‘4C uptake is normalized to estimates of the daily average irradiance to which phytoplankton had been exposed before being collected for incubation. The normalized 1C4 assimilation values are used to estimate daily rates of oxygen production in the euphotic zone and they are correlated with chlorophyll a concentration. The relationship between ‘4C uptake and chla is not directly used for estimates of oxygen production during the five month study period, but may be applied where chla but not photosynthetic carbon assimilation data exist. Oxygen consumption in the water column below the euphotic zone and in the sedi ments is estimated from analyses of sediment trap data collected monthly at three sta tions. Water column oxygen consumption is determined using an algorithm which esti mates the rate of decay with depth of the organic carbon flux, despite measured increases in flux with depth. The algorithm also provides estimates of the composition of the ma terial caught in lower but not upper sediment traps. Following a discussion of possible causes of measured flux increases with depth, it is concluded that changes in trapping efficiency were largely responsible for the pattern of flux observed in Sechelt Inlet during the experiment. Benthic oxygen demand is estimated by degrading a constant fraction of the trap-measured flux of organic carbon to the sediments. The estimates of sediment oxygen demand are found to agree with direct measurements of benthic oxygen demand in other temperate fjords. This work is concluded by comparing predicted and trap measured fluxes of organic carbon, where predicted fluxes are estimated from primary production and an estimate of the f-ratio (= new production/total production) during the experiment. A method is described in which fNQ- (= nitrate uptake/total nitrogen uptake) can be used to pre dict the export flux of organic carbon during ecologically and hydrographically dynamic periods. A large discrepancy is found between predicted and measured fluxes of organic carbon during the study period in Sechelt Inlet. It is suggested that this discrepancy was caused by dissolved and/or fine organic matter that was not caught by the sediment traps and was eventually consumed in the water column, probably by free-living, motile bacteria.
Universality of QCD traveling-waves with running coupling
Creators: name: Beuf, G.
name: Peschanski, R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The Balitsky-Kovchegov QCD equation for rapidity evolution describing saturation effects at high energy admits universal asymptotic traveling-wave solutions when the nonlinear damping becomes effective. The asymptotic solutions fall in universality classes depending only on some specific properties of the solution of the associated linear equation. We derive these solutions for the recent QCD formulations of the Balitsky-Kovchegov equation with running coupling constant obtained from quark-loop calculation. While the associated linear solutions depend in different ways with observables and higher-order effects, we show that the asymptotic traveling-wave solutions all belong to the same universality class whose solutions are given. Hence the influence of saturation stabilizes the QCD evolution with respect to higher order effects and leads to universal features at high enough rapidity, such as the form of the traveling waves, the intercept of the saturation scale and geometric scaling in square-root of the rapidity.
description: 16 pages, no figure, published version, with an augmented discussion on subasymptotic corrections
Pseudoscalar production at omega omega threshold in J/psi -> gamma omega omega
Creators: name: Bes Collaboration
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The decay channel J/ψ->gamma omega omega, omega -> pi+ pi- pi0 is analyzed using a sample of 5.8x10^7 J/psi events collected with the BESII detector. The omega omega invariant mass distribution peaks at 1.76 GeV/c^2, just above the omega omega threshold. Analysis of angular correlations indicate that the omega omega system below 2 GeV/c^2 is predominantly pseudoscalar. A partial wave analysis confirms the predominant pseudoscalar structure, together with small 0^{++} and 2^{++} contributions, and yields a pseudoscalar mass M = 1744 \pm 10 (stat) \pm 15 (syst) MeV/c^2, a width Gamma = 244^{+24}_{-21} (stat) \pm 25 (syst) MeV/c^2, and a product branching fraction Br(J/psi-> gamma eta(1760)) \cdot Br(η(1760)->omega omega) = (1.98 \pm 0.08 (stat) \pm 0.32 (syst)) x 10^{-3}.
description: 18 pages, 5 figures, submit to PRD
Silicon Esters
Creators: name: Arkles, Barry
Publisher: name: Zenodo
Year: 1997
Subjects: Sol-gel process
Precision casting
Silicon Chemistry
Coatings
Alkoxysilanes
Silane Orthoesters
Tetraethoxysilane (TEOS)

description: Silicon esters are silicon compounds that contain an oxygen bridge from silicon to an organic group, ie, Si–OR. The most prevalent is tetraethoxysilane. The applications for tetraalkoxysilanes are classified roughly by whether the Si–OR bond is expected to remain intact or be hydrolyzed in the final application. Applications in which the Si–OR bond is hydrolyzed include as binders for foundry-mold sands used in investment and thin-shell castings; as binders for refractories; and as resins, coatings, sol–gel glasses, cross-linking agents, and adhesion promoters. Applications in which the Si–OR bond remains intact include as heat-transfer and hydraulic fluids. The hydrolysis reaction, which yields polymers of silicic acid that can be dehydrated to silicon dioxide, is of considerable commercial importance. The chemistry and properties of alkoxysilanes and related acyloxysilanes and aspects of commercial production and utilization are reviewed. Sol–gel technology is discussed.
Do ensino explícito de estratégias de compreensão leitora ao sucesso na aprendizagem da leitura: programa de intervenção no 3.º ano de escolaridade From the explicit teaching of reading comprehension strategies to the success in reading learning
Creators: name: Ferreira, Mafalda
name: Gonçalves, Carolina
Publisher: name: Escola Superior de Educação de Paula Frassinetti - CIPAF
Year: 2019
Subjects: estratégias de compreensão leitora, ensino explícito, leitura, avaliação

description: A leitura é, nos dias de hoje, uma competência transversal e necessária ao sucesso escolar dos alunos. No entanto, o seu desenvolvimento requer uma aprendizagem formal e implica um ensino explícito de estratégias de compreensão leitora para que os alunos possam, autonomamente, mobilizar estas ferramentas nos diversos contextos do seu quotidiano. Neste artigo, apresenta-se um projeto de investigação-ação, implementado numa turma de 3.º ano do 1.º Ciclo do Ensino Básico. O programa de intervenção incidiu no ensino explícito de estratégias de compreensão leitora, em particular a compreensão inferencial, a compreensão crítica e a reorganização da informação. Após a intervenção, os três domínios de compreensão leitora apresentaram índices evolutivos de 8%, 25% e 50% respetivamente. Os resultados do estudo demonstraram que o ensino explícito das estratégias de compreensão leitora contribuiu expressivamente para a melhoria do desempenho dos From the explicit teaching of reading comprehension strategies to the success in reading learning: an intervention program in Grade 3 alunos Reading is, today, a transversal and necessary competence for pupils' school success. However, it requires a formal learning and implies an explicit teaching of reading comprehension strategies so that pupils can autonomously mobilize these tools in the different contexts of their daily lives. In this article, we present an action-research project implemented in a 3rd grade class of the 1st Cycle of Basic Education. The intervention program focused on the explicit teaching of reading comprehension strategies, in particular inferential, critical and information reorganization. The domains of inferential comprehension, information reorganization and critical comprehension presented evolutionary indices of 8%, 25% and 50% respectively. In this context, the results of the study demonstrated that the explicit teaching of reading comprehension strategies contributed expressively to the improvement of pupils' performance. Keywords: reading comprehension strategies, explicit teaching, reading, assessment
description: Saber & Educar, n. 25 (2018): Educar com TIC para o Século XXI
Distributionally Robust Federated Averaging
Creators: name: Deng, Yuyang
name: Kamani, Mohammad Mahdi
name: Mahdavi, Mehrdad
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: In this paper, we study communication efficient distributed algorithms for distributionally robust federated learning via periodic averaging with adaptive sampling. In contrast to standard empirical risk minimization, due to the minimax structure of the underlying optimization problem, a key difficulty arises from the fact that the global parameter that controls the mixture of local losses can only be updated infrequently on the global stage. To compensate for this, we propose a Distributionally Robust Federated Averaging (DRFA) algorithm that employs a novel snapshotting scheme to approximate the accumulation of history gradients of the mixing parameter. We analyze the convergence rate of DRFA in both convex-linear and nonconvex-linear settings. We also generalize the proposed idea to objectives with regularization on the mixture parameter and propose a proximal variant, dubbed as DRFA-Prox, with provable convergence rates. We also analyze an alternative optimization method for regularized cases in strongly-convex-strongly-concave and non-convex (under PL condition)-strongly-concave settings. To the best of our knowledge, this paper is the first to solve distributionally robust federated learning with reduced communication, and to analyze the efficiency of local descent methods on distributed minimax problems. We give corroborating experimental evidence for our theoretical results in federated learning settings.
description: Published in NeurIPS 2020: https://proceedings.neurips.cc/paper/2020/hash/ac450d10e166657ec8f93a1b65ca1b14-Abstract.html
Monogamy Inequality in terms of Negativity for Three-Qubit States
Creators: name: Ou, Yong-Cheng
name: Fan, Heng
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a new entanglement measure to quantify three qubits entanglement in terms of negativity. A monogamy inequality analogous to Coffman-Kundu-Wootters (CKW) inequality is established. This consequently leads to a definition of residual entanglement, which is referred to as three-$π$ in order to distinguish from three-tangle. The three-$π$ is proved to be a natural entanglement measure. By contrast to the three-tangle, it is shown that the three-$π$ always gives greater than zero values for $W$ and GHZ classes, implying there always exists three-way entanglement for them, and three-tangle generally underestimates three-way entanglement of a given system. This investigation will offer an alternative tool to understand genuine multipartite entanglement.
description: 5 pages, 3 figures, minor modifications are made
Scanning probe-induced thermoelectrics in a quantum point contact
Creators: name: Fleury, Geneviève
name: Gorini, Cosimo
name: Sánchez, Rafael
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study three-terminal thermoelectric transport in a two-dimensional Quantum Point Contact (QPC) connected to left and right electronic reservoirs, as well as a third one represented by a scanning probe tip. The latter acts as a voltage probe exchanging heat with the system but no charges on average. The thermoelectric coefficients are calculated numerically within the Landauer-Büttiker formalism in the low-temperature and linear response regimes. We find tip-induced oscillations of the local and non-local thermopowers and study their dependence on the QPC opening. If the latter is tuned on a conductance plateau, the system behaves as a perfect thermoelectric diode: for some tip positions the charge current through the QPC, driven by a local Seebeck effect, can flow in one direction only.
description: 5+ pages. Includes supplementary material (another 4 pages). Accepted version
Precision electroweak calculation of the charged current Drell-Yan process
Creators: name: Calame, C. M. Carloni
name: Montagna, G.
name: Nicrosini, O.
name: Vicini, A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present a detailed study of the charged current Drell-Yan process, which includes the exact O(alpha) electroweak corrections properly matched with leading-log effects due to multiple-photon emission, as required by the experiments at the Tevatron and the LHC. Numerical results for the relevant observables of single W boson production at hadron colliders are presented. The impact of the radiative corrections and of some sources of theoretical uncertainty is discussed in detail. The calculation has been implemented in the new version of the event generator HORACE, which is available for precision simulations of the charged current Drell-Yan process.
description: 29 pages, 19 figures, it uses JHEP3 style
Semantic and grammatical elicitation: "Think" and -ta suffix
Creators: name: Yegon, Kiplangat
name: Bossi, Madeline
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: sgc

description: One .mp4 file and one .pdf file. Elicitation of reminding contexts with pɑr (singular vs. plural subjects, possible competitors). Elicitation of how questions with various different verbs.
pdb-tools: a swiss army knife for molecular structures
Creators: name: Rodrigues, João
name: Teixeira, João
name: Trellet, Mikael
name: Bonvin, Alexandre
Publisher: name: F1000 Research Limited
Year: 2019

description: The pdb-tools are a collection of Python scripts for working with molecular structure data in the Protein Data Bank (PDB) format. They allow users to edit, convert, and validate PDB files, from the command-line, in a simple but efficient manner. The pdb-tools are implemented in Python, without any external dependencies, and are freely available under the open-source Apache License at https://github.com/haddocking/pdb-tools/ and on PyPI.
Calcium and vitamin D supplementation on bone structural properties in peripubertal female identical twins
Creators: name: Greene, David Anthony
Publisher: name: Australian Catholic University
Year: 2013

description: A randomised controlled trial was used in assessing the impact of 6 months of daily calcium and vitamin-D supplementation on trabecular and cortical bone acquisition at distal tibial and radial sites using peripheral quantitative computed tomography (pQCT). Daily supplementation was associated with increased bone density and bone strength at the distal tibia and radius. Twenty pairs of peripubertal female identical twins, aged 9 to 13 years, were randomly assigned to receive either 800 mg of calcium and 400 IU of vitamin D3, or a matched placebo. Bone structural properties at the distal tibia and distal radius were acquired at baseline and 6 months. pQCT data for all three stages of the trial. Data can be exported to SPSS or MS Excel. Statistical analyses available in SPSS format. The Australian Twin Registry arranged contact with the twins. USANA supplied the supplements.
Comparison of numerically calculated bubble shape with textural analysis: Implications for the velocity profile across a conduit
Creators: name: Ohashi, Masatoshi
Publisher: name: figshare
Year: 2021
Subjects: subject: 40314 Volcanology
subject: FOS: Earth and related environmental sciences

description: This item is provided as part of submission of manuscript entitled "Comparison of numerically calculated bubble shape with textural analysis: Implications for the velocity profile across a conduit".
Phase-space distributions of nuclear short-range correlations
Creators: name: Cosyn, W.
name: Ryckebusch, J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Nuclear short-range correlations (SRCs) induce high-momentum/high-energy fluctuations in the nuclear medium. In order to assess their impact on nuclear bulk properties, like nuclear radii and kinetic energies, it is instrumental to determine how SRCs are distributed in phase space as this sheds light on the connection between their appearance in coordinate and momentum space. Using the lowest-order correlation operator approximation (LCA) to include SRC, we compute two-dimensional nuclear Wigner quasiprobability distributions $w(r, k)$ to locate those $({r}, {k})$ phase-space regions that are most heavily impacted by SRCs. The SRC-induced high-momentum components find their origin in a radial range that is confined to the nuclear interior. Significant SRCs strength is generated in the full momentum range $0 \leq k \lesssim 5 ~\text{fm}^{-1} $ covered in this work, but below the Fermi momentum those are dwarfed by the mean-field contributions. As an application of $w(r, k)$, we focus on the radial dependence of the kinetic energy $T$ and the momentum dependence of the radius $r_{\text{rms}}$ for the symmetric nuclei $^{12}$C, $^{40}$Ca and the asymmetric nucleus $^{48}$Ca. The kinetic energy almost doubles after including SRCs, with the largest increase occurring in the nuclear interior $r \lesssim 2$ fm. The momentum dependence of the $r_{\text{rms}}$ teaches that the largest contributions stem from $k \lesssim 2 $ fm$^{-1}$, where the SRCs induce a slight reduction of the order of a few percent. The SRCs systematically reduce the $^{48}$Ca neutron skin by an amount that can be 10\%.
description: 10 pages, 6 figures; revised version with updated Fig.1, matches published version
Children’s Centre Coordinator Pedagogical Mentoring and Coaching Program Development Project
Creators: name: Nuttall, Jocelyn Grace
Publisher: name: Australian Catholic University
Year: 2013

description: The development of pedagogical leadership amongst children's centre co-ordinators with the City of Knox. Data gathered to support research on the development of pedagogical leadership in early years settings, in the context of shifting policy, funding, curriculum and staffing. Transcripts of interviews conducted with 11 early child care co-ordinators and family day care co-ordinators. Six interviews were conducted with each participation, with six week intervals between data collection. Approx. 50 electronic format transcripts. Research and Development Project, External Contract with City of Knox. Jocelyn Grace Nuttall (Chief Investigator)
Force on a neutral atom near conducting microstructures
Creators: name: Eberlein, Claudia
name: Zietal, Robert
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We derive the non-retarded energy shift of a neutral atom for two different geometries. For an atom close to a cylindrical wire we find an integral representation for the energy shift, give asymptotic expressions, and interpolate numerically. For an atom close to a semi-infinite halfplane we determine the exact Green's function of the Laplace equation and use it derive the exact energy shift for an arbitrary position of the atom. These results can be used to estimate the energy shift of an atom close to etched microstructures that protrude from substrates.
description: 7 pages, 5 figures
Δημιουργία ψηφιακών βαθυμετρικών χαρτών με χρήση δορυφορικής εικόνας WorldView 2 και του βαθυμετρικού μοντέλου λόγων
Creators: name: Σολιοπούλου, Αθηνα Σταύρου
Publisher: name: Aristotle University of Thessaloniki
Year: 2017
Subjects: Ψηφιακοί βαθυμετρικοί χάρτες
Βαθυμετρικό μοντέλο αναλογιών / λόγων
Δορυφορική εικόνα
bathymetric maps
satellite image WorldView 2
Stumpf ratio bathymetry model

description: Στην παρούσα εργασία πραγματοποιήθηκε παραγωγή βαθυμετρικών χαρτών μέσω ενός μοντέλου πολυφασματικής βαθυμετρίας, αξιοποιώντας τις δυνατότητες μιας δορυφορικής εικόνας Worldview 2. Αρχικά, η εικόνα υπέστη επεξεργασία σύμφωνα με τεχνικές διόρθωσης, πιο συγκεκριμένα ατμοσφαιρική διόρθωση και αφαίρεση του λαμπυρίσματος, κατά τέτοιο τρόπο, ώστε να καταστεί λειτουργική για τα δεδομένα της μελέτης. Στη συνέχεια, έγινε μία προσπάθεια μελέτης και αξιολόγησης της μέτρησης του βάθους, μέσω του στατιστικού βαθυμετρικού μοντέλου των Stumpf et al. που αφορά τις ρηχές παράκτιες ζώνες. Τα εκτιμώμενα βάθη συγκρίθηκαν με σημεία γνωστού βάθους, τα οποία προήλθαν μέσω της ηχοβολιστικής μεθόδου. Μέσω των παραπάνω διεργασιών, βαθμονομήθηκε το εν λόγω βαθυμετρικό μοντέλο και εφαρμόστηκε στην περιοχή μελέτης. Από την εφαρμογή του προέκυψαν οι τελικοί βαθυμετρικοί χάρτες, οι οποίοι παρουσιάζονται με τη μορφή ψηφιδωτών αρχείων και ισοβαθών καμπύλων. Τέλος, εφαρμόστηκαν τεχνικές ομαλοποίησης των χαρτών, μέσω χωρικών φίλτρων, οι οποίες χρησιμοποιούνται με σκοπό την εξάλειψη του θορύβου στα χαρτογραφικά προϊόντα
description: In this dissertation thesis bathymetric maps were produced by multispectral bathymetry model utilizing the capabilities of a satellite image Worldview 2. Initially, the image was modified with remote sensing methods: sun glint removal and atmospheric correction, in order to be operational for the study data. Furthermore, depth measurements, as well as depths evaluations, were investigated through Stumpf et al. ratio bathymetry model on shallow coastal areas. Estimated depths were compared with known depths, derived by the echo-sounding method. Through these processes, bathymetric model was calibrated and then implemented in the study area. Bathymetric maps were created in raster files and depths contours are also drawn. Subsequently, these cartographic products subjected to focal filters in order to eliminate image noise effect in them
Additional file 10 of A cis-regulatory element promoting increased transcription at low temperature in cultured ectothermic Drosophila cells
Creators: name: Bai, Yu
name: Caussinus, Emmanuel
name: Leo, Stefano
name: Bosshardt, Fritz
name: Myachina, Faina
name: Rot, Gregor
name: Robinson, Mark D.
name: Lehner, Christian F.
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 10: Fig. S4. Downregulation of cell cycle genes in S2R+ cells at low temperature. (A) Temperature dependence of transcript levels of S phase genes. The S2R+ cell transcriptome was analyzed after 24 h of incubation at different temperatures (11, 14, 25 and 30 °C) using microarrays. Temperature dependence of signal intensities (mean of three biological replicates) observed with microarray probes for transcripts derived from a curated set of genes crucial for progression through S phase is displayed after baseline transformation. (B) Temporal dynamics S- and M phase gene downregulation after a shift from 25 to 14 °C. Transcriptome changes were analyzed with microarrays at different times (0, 4, 12, 24 and 72 h) after the temperature downshift. Fold change relative to expression at t = 0 (dashed green line) of signal intensities (mean of three biological replicates) observed with microarray probes for transcripts derived from a curated set of genes crucial for progression through S- and M phase was calculated. Mean and s.d. are displayed in red. (C) Clustering of temperature-regulated genes according to their temporal expression dynamics after a 25- > 14 °C shift using k-means identified a prominent cluster of genes with persistent downregulation (Fig. 3E, cluster 2). Functional interactions among the genes in this cluster, as revealed by analysis with the STRING database, are displayed. Genes associated with the GO term “DNA replication” (GO:0006260), the term most strongly enriched (FDR = 4.15 × 10− 26) by the genes in this cluster, are marked in blue. Genes associated with “cell cycle” (GO:0007049, also strongly enriched, FDR = 3.72 × 10− 15) are marked in red.
Distributed Relay Protocol for Probabilistic Information-Theoretic Security in a Randomly-Compromised Network
Creators: name: Beals, Travis R.
name: Sanders, Barry C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: Cryptography and Security (cs.CR)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We introduce a simple, practical approach with probabilistic information-theoretic security to mitigate one of quantum key distribution's major limitations: the short maximum transmission distance (~200 km) possible with present day technology. Our scheme uses classical secret sharing techniques to allow secure transmission over long distances through a network containing randomly-distributed compromised nodes. The protocol provides arbitrarily high confidence in the security of the protocol, with modest scaling of resource costs with improvement of the security parameter. Although some types of failure are undetectable, users can take preemptive measures to make the probability of such failures arbitrarily small.
description: 12 pages, 2 figures; added proof of verification sub-protocol, minor corrections
Ανατομία των ευρωπαϊκών stress tests: Εφαρμογή στον κίνδυνο ρευστότητας
Creators: name: Κατσιούλη, Μαρία Αθανασίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2017
Subjects: Ασκήσεις προσομοίωσης
Κίνδυνος ρευστότητας
Διαχείριση κινδύνων
Stress tests
Liquidity risk
Risk management

description: Η σύγχρονη πραγματικότητα στο χρηματοπιστωτικό σύστημα καθιστά αναγκαία την εποπτεία των χρηματοπιστωτικών ιδρυμάτων και την εδραίωση της διαχείρισης των κινδύνων που αυτά διατρέχουν. Αντικείμενο της παρούσας εργασίας είναι η ανάλυση του εργαλείου της προσομοίωσης ακραίων καταστάσεων, το οποίο χρησιμοποιείται ευρέως για πρόληψη και αποφυγή των διαφόρων κινδύνων στο πλαίσιο της τραπεζικής δραστηριότητας. Ειδικότερα, εξετάζεται η περίπτωση του κινδύνου ρευστότητας και εκπονείται εμπειρική μελέτη για την εφαρμογή του παραπάνω εργαλείου στο συγκεκριμένο είδος κινδύνου
description: The current reality in the financial system requires the supervision of financial institutions and the consolidation of the management of the risks that they run. The object of this thesis is the analysis of the stress test tool, which is widely used to prevent and avoid the various risks in the banks. Specifically, is analyzed the case of liquidity risk and is presented an empirical study on the application of this tool on this type of risk
$μ$-distortion around stupendously large primordial black holes
Creators: name: Deng, Heling
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In a variety of mechanisms generating primordial black holes, each black hole is expected to form along with a surrounding underdense region that roughly compensates the black hole mass. This region will propagate outwards and expand as a shell at the speed of sound in the homogeneous background. Dissipation of the shell due to Silk damping could lead to detectable $μ$-distortion in the CMB spectrum. While the current bound on the average $μ$-distortion is $\left| \barμ\right|\lesssim10^{-4}$, the standard $Λ$CDM model predicts $\left| \barμ\right|\sim10^{-8}$, which could possibly be detected in future missions. It is shown in this work that the non-observation of $\barμ$ beyond $Λ$CDM can place a new upper bound on the density of supermassive primordial black holes within the mass range $10^{6}M_{\odot}\lesssim M\lesssim10^{15}M_{\odot}$. Furthermore, black holes with initial mass $M\gtrsim10^{12}M_{\odot}$ could leave a pointlike distortion with $μ\gtrsim10^{-8}$ at an angular scale $\sim 1^{\circ}$ in CMB, and its non-observation would impose an even more stringent bound on the population of these stupendously large primordial black holes.
description: 21 pages in REVTeX (V.4), 3 figures
การถอดบทเรียนทักษะชีวิตของนิสิตจากการจัดกิจกรรมการเรียนการสอนรายวิชาเทคโนโลยีการถ่ายภาพ คณะศึกษาศาสตร์ มหาวิทยาลัยนเรศวร
Creators: name: รุจโรจน์ แก้วอุไร, นิกร จันภิลม, ศตพล กัลยา, ศศิธร นาม่วงอ่อน, ศุภสิทธิ์ เต็งคิว, อพัชชา ช้างขวัญยืน
Publisher: name: สำนักวิทยบริการ มหาวิทยาลัยสงขลานครินทร์ วิทยาเขตปัตตานี
Year: 2019
Subjects: การถอดบทเรียน, ทักษะชีวิต, กิจกรรมการเรียนการสอน, lessons learned, life skills, instructional process

description: วารสารวิทยบริการ มหาวิทยาลัยสงขลานครินทร์, 30, 2, 59-68
Βελτιστοποίηση δικτύων διανομής νερού με τη μέθοδο αποικίας μυρμηγκιών και τη μέθοδο του πολυκέφαλου φυσάριου (physarum polycephalum)
Creators: name: Κορίτσας, Ηλίας Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2017
Subjects: Βελτιστοποίηση δικτύων διανομής νερού
αποικία μυρμηγκιών
μούχλα
water distribution network optimization
ant colony optimization
physarum polycephalum

description: Η βελτιστοποίηση των δικτύων διανομής νερού είναι ένα πολύπλοκο και δύσκολο πρόβλημα βελτιστοποίησης που απασχολεί πολλούς μελετητές ανά τον κόσμο. Το πρόβλημα βελτιστοποίησης ενός δικτύου περιλαμβάνει την εύρεση των βέλτιστων διατομών των αγωγών, έτσι ώστε να ελαχιστοποιείται το κόστος κατασκευής του, χωρίς όμως να παραβιάζονται οι υδραυλικοί περιορισμοί του προβλήματος. Το πρόβλημα αυτό είναι ένα δύσκολο, συνδυαστικό πρόβλημα με διακριτές μεταβλητές απόφασης τις διατομές των αγωγών και σύνθετους περιορισμούς, των οποίων οι εξισώσεις είναι μη γραμμικές. Τα τελευταία χρόνια έχουν αναπτυχθεί πολλές μέθοδοι για την επίλυση αυτού του προβλήματος, ειδικά στον τομέα των (μετά) ευρετικών μεθόδων, αρκετές από τις οποίες περιγράφονται στην παρούσα εργασία. Στην παρούσα εργασία, το παραπάνω πρόβλημα αντιμετωπίζεται με τη μέθοδο βελτιστοποίησης αποικίας μυρμηγκιών, καθώς και με τη μέθοδο της μούχλας Physarum Polycephalum για την εύρεση του ελάχιστου δέντρου με περιορισμούς, η οποία εφαρμόζεται για πρώτη φορά σε τέτοιου είδους πρόβλημα πάνω σε δύο δίκτυα. Τέλος, γίνεται σύγκριση των αποτελεσμάτων των δύο μεθόδων από άποψη ολικού κόστους, ευστοχίας, καθώς και χρόνου εκτέλεσης
description: Water distribution network optimization is a difficult and complex optimization problem that is a field of research for many researchers worldwide. The water distribution network optimization problem entails finding the diameter of pipes, so that the construction cost of the network is minimized, without any hydraulic constraints being violated. This is a hard combinational problem, with pipe diameters as discrete variables and non-linear constraints. Over the recent years, many methods have been developed, specially in the field of (meta) heuristic methods, to solve this problem, some of which are described in the current paper. In this paper, the aforementioned problem, is tackled with the Ant Colony Optimization method and the Physarum Polycephalum slime mold method for finding the constrained minimum spanning tree,which is applied for the first time in such problems on two benchmark network. Finally, a comparison between the two methods is made, in terms of total cost, accuracy and execution time
Analytic solutions of the 1D finite coupling delta function Bose gas
Creators: name: Forrester, P. J.
name: Frankel, N. E.
name: Makin, M. I.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: An intensive study for both the weak coupling and strong coupling limits of the ground state properties of this classic system is presented. Detailed results for specific values of finite $N$ are given and from them results for general $N$ are determined. We focus on the density matrix and concomitantly its Fourier transform, the occupation numbers, along with the pair correlation function and concomitantly its Fourier transform, the structure factor. These are the signature quantities of the Bose gas. One specific result is that for weak coupling a rational polynomial structure holds despite the transcendental nature of the Bethe equations. All these new results are predicated on the Bethe ansatz and are built upon the seminal works of the past.
description: 23 pages, 0 figures, uses rotate.sty. A few lines added. Accepted by Phys. Rev. A
Sinking rates responses of oceanic phytoplankton to irradiance, nutrients, and iron stress
Creators: name: Lecourt, Maude
Publisher: name: University of British Columbia
Year: 2009

description: Emiliania huxleyi (Lohmann), a small oceanic coccolithophore, was isolated from the NE Subarctic Pacific Ocean. The sinking rates of two strains of E. huxleyi, naked and coccolith-forming, were measured. The two strains were grown under saturating and lightlimited conditions in media containing either NO3 or NH4 as the primary nitrogen source. Sinking rates were measured during log and senescent growth phases. The naked strain grew significantly faster under saturating light than the coccolith-forming strain. The coccolith-forming strain of E. huxleyi had a significantly larger cell volume and higher sinking rates than the naked strain under all conditions. The naked strain increased significantly its chi a content under light limitation. POC and PUN were significantly higher for the coccolith-forming strain. During senescence, coccolith formation and cell aggregation increased for the coccolith-forming strain and the naked strain, respectively, significantly increasing their sinking rates. No significant difference in physiological parameters was observed between NO3 and NH4+ grown cells, except that growth rate was faster under NH4 at saturating light. These results suggest that coccolith formation controls sinking rates, and therefore the coccolith-forming strain has some advantages over the naked strain. This study also determined the sinking rates responses, physiological parameters, and iron quotas of E. huxleyi (coccolith forming strain) and an oceanic strain of the diatom Actinocyclus sp. (20 im diameter) under iron deficiency. Actinocyclus sp. was grown under N03- and N4+H to determine whether there was an advantage for cells to grow on NH4 rather than NO3- under iron-deplete conditions. E. huxleyi was grown on NO3- only. Under iron-deficient conditions, Actinocyclus sp. increased its sinking rate 9 fold, despite its 30% decrease in cell volume. E. huxleyi maintained its sinking rates, but deceased its cell volume by 50%. Growth rates and iron quotas of Actinocyclus sp. and E. huxleyi significantly decreased under iron-deplete conditions. E. huxleyi maintained its POC and PUN and increased its chi a content under iron-deplete conditions. On the other hand, Actinocyclus sp. significantly decreased its POC, PON and its chi a content when grown on N03. The results obtained under iron-deplete conditions indicate that E. huxleyi grown on N0 3 was not significantly affected by iron stress. However, Actinocyclus sp. was affected by iron deficiency, and was energetically affected by the nitrogen source. Finally, small coccolithophores are better adapted to their habitat (i.e. low iron concentrations in the NE Subarctic Pacific) and can easily outcompete large diatoms in a low iron environment.
Scaling Analysis of Domain-Wall Free-Energy in the Edwards-Anderson Ising Spin Glass in a Magnetic Field
Creators: name: Sasaki, M.
name: Hukushima, K.
name: Yoshino, H.
name: Takayama, H.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The stability of the spin-glass phase against a magnetic field is studied in the three and four dimensional Edwards-Anderson Ising spin glasses. Effective couplings and effective fields associated with length scale L are measured by a numerical domain-wall renormalization group method. The results obtained by scaling analysis of the data strongly indicate the existence of a crossover length beyond which the spin-glass order is destroyed by field H. The crossover length well obeys a power law of H which diverges as H goes to zero but remains finite for any non-zero H, implying that the spin-glass phase is absent even in an infinitesimal field. These results are well consistent with the droplet theory for short-range spin glasses.
description: 4 pages, 5 figures; The text is slightly changed, the figures 3, 4 and 5 are changed, and a few references are added