cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Coronal Structure and Abundances in Young Fast Rotators
Creators: name: Garcia-Alvarez, D.
name: Drake, J. J.
name: Kashyap, V. L.
name: Lin, L.
name: Ball, B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: AB Dor, Speedy Mic and Rst137B are in their early post-T Tauri evolutionary phase (<100Myr), at the age of fastest rotation in the life of late-type stars. They straddle the coronal saturation-supersaturation boundary first defined by young stars in open clusters. High resolution Chandra X-ray spectra have been analysed to study their coronal properties as a function of coronal activity parameters Rossby number, $L_X/L_{bol}$ and a coronal temperature index. Plasma emission measure distributions as a function of temperature show broad peaks at T~10e7K. Differences between stars suggest that as supersaturation is reached the DEM slope below the temperature of peak DEM becomes shallower, while the DEM drop-off above this temperature becomes more pronounced. A larger sample comprising our three targets and 22 active stars studied in the recent literature reveals a general increase of plasma at T>10e7 toward the saturated-supersaturated boundary but a decline beyond this among supersaturated stars. All three of the stars studied in detail here show lower coronal abundances of the low FIP elements Mg, Si and Fe, relative to the high FIP elements S, O and Ne, as compared to the solar mixture. The coronal Fe abundances of the stellar sample are inversely correlated with Lx/Lbol, declining slowly with rising Lx/Lbol, but with a much more sharp decline at Lx/Lbol>3x10e-4. For dwarfs the Fe abundance is also well-correlated with Rossby number. The coronal O/Fe ratios for dwarfs show a clear increase with decreasing Rossby number, apparently reaching saturation at [O/Fe]=0.5 at the coronal supersaturation boundary. Similar increases in O/Fe with increasing coronal temperature and $L_X/L_{bol}$ are seen.
description: 22 pages, 8 figures, 6 tables. Accepted by ApJ
Dihadron Tomography of High-Energy Nuclear Collisions in NLO pQCD
Creators: name: Zhang, Hanzhong
name: Owens, J. F.
name: Wang, Enke
name: Wang, Xin-Nian
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Back-to-back dihadron spectra in high-energy heavy-ion collisions are studied within the next-to-leading order (NLO) perturbative QCD parton model with jet quenching incorporated via modified jet fragmentation functions due to radiative parton energy loss in dense medium. The experimentally observed appearance of back-to-back dihadrons at high $p_T$ is found to originate mainly from jet pairs produced close and tangential to the surface of the dense matter. However, a substantial fraction of observed high $p_T$ dihadrons also comes from jets produced at the center of the medium after losing finite amount of energy. Consequently, the suppression factor of such high-$p_T$ hadron pairs is found to be more sensitive to the initial gluon density than the single hadron spectra that are dominated by surface emission. A simultaneous $χ^2$-fit to both the single and dihadron spectra can be achieved within a narrow range of the energy loss parameters $ε_0=1.6-2.1$ GeV/fm. Because of the flattening of the initial jet production spectra, high $p_T$ dihadrons at the LHC energy are found to be more robust as probes of the dense medium.
description: 4 pages in revtex with 5 figures, final version in PRL The numerical tables of the NLO single and dihadron spectra used in this manuscript can be downloaded from ftp://www-nsdth.lbl.gov/pub/xnwang/dihadron/
title: Supporting fisheries management under climate change: lessons from the 2012 ocean heat wave
Creators: name: Mills, Katherine E.
name: Pershing, Andrew J.
name: Sun, Jenny C.
Publisher: name: ASC 2013 - Theme session B
Year: 2024
Subjects: The sea and human culture and societies
Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author. Unprecedented warm temperatures across much of the Northwest Atlantic in 2012 triggered rapid ecological responses in many species and revealed weaknesses in both fisheries economic and management systems.
Olbertian partition function in scalar field theory
Creators: name: Treumann, R. A.
name: Baumjohann, Wolfgang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Classical Physics (physics.class-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The Olbertian partition function is reformulated in terms of continuous (Abelian) fields described by the Landau-Ginzburg action, respectively Hamiltonian. In order do make some progress, the Gaussian approximation to the partition function is transformed into the Olbertian prior to adding the quartic Landau-Ginzburg term in the Hamiltonian. The final result is provided in the form of an expansion suitable for application of diagrammatic techniques once the nature of the field is given, i.e. once the field equations are written down such that the interactions can be formulated.
description: 10 pages, no figures, accepted
Classical model of delayed-choice quantum eraser
Creators: name: La Cour, Brian R.
name: Yudichak, Thomas W.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Wheeler's delayed-choice experiment was conceived to illustrate the paradoxical nature of wave-particle duality in quantum mechanics. In the experiment, quantum light can exhibit either wave-like interference patterns or particle-like anti-correlations, depending upon the (possibly delayed) choice of the experimenter. A variant known as the quantum eraser uses entangled light to recover the lost interference in a seemingly nonlocal and retrocausal manner. Although it is believed that this behavior is incompatible with classical physics, here we show that the observed quantum phenomena can be reproduced by adopting a simple deterministic detector model and supposing the existence of a random zero-point electromagnetic field.
description: 12 pages, 12 figures
title: Response of Marine Living Resources to Global Climate Change
Creators: name: Lefort, Stelly
name: Aumont, Olivier
name: Bopp, Laurent
name: Maury, Olivier
name: Gehlen, Marion
Publisher: name: ASC 2013 - Theme session B
Year: 2024
Subjects: The sea and human culture and societies
Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author. We estimated the effects of climate changes on marine communities using a coupled biogeochemical (PISCES) - high trophic level (APECOSM) model forced by physical output from a transient climate change simulation (IPSL-CM5A-LR). The high trophic level model is size-based and simulates the spatial distribution of three pelagic communities distinguished on the basis of their vertical distributions and movements (epipelagic, mesopelagic and migratory).
title: Statistisches Jahrbuch der Stadt Zürich 1970
title: Stat. Jahrb. Stadt Zür.
titleType: AlternativeTitle
Creators: name: (:Unkn) Unknown
Publisher: name: Buchdruckerei Berichthaus Zürich
Year: 1971
Subjects: subject: 314 Allgemeine Statistiken zu Europa
subject: Amtliche Statistik
subject: Bevölkerungsstatistik
subject: Wirtschaftsstatistik
subject: Stadtleben
subject: Zürich
subject: Baustatistik

description: Die in dieser Ausgabe publizierten Daten beziehen sich zum grössten Teil auf folgenden Zeitabschnitt : 1970-1971
description: Während die Auswahl und Gliederung der Tabellen gegenüber dem Vorjahr weitgehend unverändert blieb, basierten im Jahrbuch 1970 erstmals gewisse Statistiken auf der neuen Kreiseinteilung. Auf den 1. Januar 1971 trat die neue Gemeindeordnung in Kraft, die statt bisher 11 nun 12 Stadtkreise vorsieht. So liegen erste Ergebnisse der Volkszählung 1970 bereits auch für den neuen Stadtkreis 12 – Schwammendingen – vor. Der Grossteil der Bevölkerungsfortschreibung beruht nach wie vor auf der Volkszählung 1960. Der Abschnitt «Landwirtschaft, Gartenbau» enthält dagegen bereits die Ergebnisse der Viehzählung 1971. Neu sind zudem die Nachweise über die Parteienstärkte bei den Kantonsratswahlen vom 25. April 1971.
Phase transitions, double-scaling limit, and topological strings
Creators: name: Caporaso, Nicola
name: Griguolo, Luca
name: Marino, Marcos
name: Pasquetti, Sara
name: Seminara, Domenico
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Geometry (math.AG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Topological strings on Calabi--Yau manifolds are known to undergo phase transitions at small distances. We study this issue in the case of perturbative topological strings on local Calabi--Yau threefolds given by a bundle over a two-sphere. This theory can be regarded as a q--deformation of Hurwitz theory, and it has a conjectural nonperturbative description in terms of q--deformed 2d Yang--Mills theory. We solve the planar model and find a phase transition at small radius in the universality class of 2d gravity. We give strong evidence that there is a double--scaled theory at the critical point whose all genus free energy is governed by the Painlevé I equation. We compare the critical behavior of the perturbative theory to the critical behavior of its nonperturbative description, which belongs to the universality class of 2d supergravity. We also give evidence for a new open/closed duality relating these Calabi--Yau backgrounds to open strings with framing.
description: 49 pages, 3 eps figures; section added on non-perturbative proposal and 2d gravity; minor typos corrected
title: Statistisches Jahrbuch der Stadt Zürich 1975
title: Stat. Jahrb. Stadt Zür.
titleType: AlternativeTitle
Creators: name: (:Unkn) Unknown
Publisher: name: Buchdruckerei Berichthaus Zürich
Year: 1976
Subjects: subject: 314 Allgemeine Statistiken zu Europa
subject: Amtliche Statistik
subject: Bevölkerungsstatistik
subject: Wirtschaftsstatistik
subject: Stadtleben
subject: Zürich
subject: Baustatistik

description: Die in dieser Ausgabe publizierten Daten beziehen sich zum grössten Teil auf folgenden Zeitabschnitt : 1975
description: Wie die Vorjahresausgabe enthält das Statistische Jahrbuch von 1975 die wichtigsten statistischen Angaben über Gebiet, Klima, Bevölkerung, Wirtschaft, Kultur, Lebensverhältnisse und Verwaltung für die Stadt Zürich. Die Gliederung und Auswahl der Übersichten blieben gegenüber dem Vorjahr weitestgehend unverändert.
Additional file 2 of Developing a feedback-rich culture in academic medicine: the effect of coaching and 360-feedback on physician leadership
Creators: name: Schwartz, Rachel
name: Weimer-Elder, Barbette
name: Wilkins, Elizabeth
name: Deka, Dan
name: Wong, Stephanie
name: Dang, Bryan K.
name: Brown, Ryan
name: Kline, Merisa
name: Kwan, Lawrence
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Geology
subject: FOS: Earth and related environmental sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 2: Appendix B.
Atmospheric Circulation of Hot Jupiters: Three-dimensional circulation models of HD 209458b and HD 189733b with Simplified Forcing
Creators: name: Showman, Adam P.
name: Cooper, Curtis S.
name: Fortney, Jonathan J.
name: Marley, Mark S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present global, three-dimensional numerical simulations of the atmospheric circulation on HD 209458b and HD 189733b and calculate the infrared spectra and light curves predicted by these simulations, which we compare with available observations. Radiative heating/cooling is parameterized with a simplified Newtonian relaxation scheme. Our simulations develop day-night temperature contrasts that vary strongly with pressure. At low pressure (<10 mbar), air flows from the substellar point toward the antistellar point, both along the equator and over the poles. At deeper levels, the flow develops an eastward equatorial jet with speeds of 3-4 km/sec, with weaker westward flows at high latitudes. This basic flow pattern is robust to variations in model resolution, gravity, radiative time constant, and initial temperature structure. Nightside spectra show deep absorption bands of H2O, CO, and/or CH4, whereas on the dayside these absorption bands flatten out or even flip into emission. This results from the strong effect of dynamics on the vertical temperature-pressure structure; the temperature decreases strongly with altitude on the nightside but becomes almost isothermal on the dayside. In Spitzer bandpasses, our predicted planet-to-star flux ratios vary by a factor of 2-10 with orbital phase, depending on the wavelength and chemistry. For HD 189733b, where a detailed 8-micron light curve has been obtained, we correctly produce the observed phase offset of the flux maximum, but we do not explain the flux minimum and we overpredict the total flux variation. This discrepancy likely results from the simplifications inherent in the Newtonian relaxation scheme and provides motivation for incorporating realistic radiative transfer in future studies.
description: 17 pages, 14 figures, submitted for publication in ApJ
Ambient vibration assessment of Ruskin Dam dynamic properties
Creators: name: Kemp, Bradley Gary
Publisher: name: University of British Columbia
Year: 2009

description: Concrete gravity dams are significant civil engineering structures whose failure can produce catastrophic results. Field appraisal of their dynamic properties would be useful to validate numerical models used for structural analysis to determine, for instance, seismic resistance. The suitability of ambient vibration testing and analysis to provide meaningful dynamic properties of a concrete gravity dam has been studied. Tests were conducted at B.C. Hydro's Ruskin Dam, located near Mission, B.C. Tests were completed at two reservoir levels to permit calibration of a numerical model. Two distinct methods of frequency domain based analysis were used to determine dynamic properties. The first method used proven ambient vibration techniques, based on a "relative" single inputsingle output system, with no quantification of excitation. Relative transfer function relationships were constructed between a reference location on the dam and all other points on the dam at which measurements were taken. The selection of potential natural frequencies was completed by consideration of the power in the signals recorded. Final selection of natural frequencies and associated mode shapes was based on the resulting gain, phase and coherence values of the relative transfer functions. In the second method, the field measurements were considered to represent a single inputsingle output system with output noise, as the bedrock signal was shown to represent the majority of input. For this approach, natural frequencies were indicated as peaks in crossspectral density functions with high coherence and corresponding transfer functions having phase factors equal to 90 degrees. Two natural frequencies and corresponding mode shapes were identified. Confidence of prediction was found to be highest for the first of these. Although this was concluded to be a meaningful result, there is clearly a need for developing additional ambient vibration theory which can be implemented to identify dynamic properties. To demonstrate the usefulness of the dynamic properties obtained through the ambient vibration testing and analysis, a numerical model of the dam utilizing the finite element method was subjected to modal analysis with which to complete calibration/parametric studies. Calibration was found successful only for the first natural frequency, probably because the numerical model failed to include the effects of water compressibility, which were shown through rudimentary calculations to be significant. Calibration to the first natural frequency is, however, considered meaningful as concrete gravity dam response is attributed mainly to the fundamental mode.
Compact multigluonic scattering amplitudes with heavy scalars and fermions
Creators: name: Ferrario, Paola
name: Rodrigo, German
name: Talavera, Pere
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Combining the Berends-Giele and on-shell recursion relations we obtain an extremely compact expression for the scattering amplitude of a complex scalar-antiscalar pair and an arbitrary number of positive helicity gluons. This is one of the basic building blocks for constructing other helicity configurations from recursion relations. We also show explicity that the all positive helicity gluons amplitude for heavy fermions is proportional to the scalar one, confirming in this way the recently advocated SUSY-like Ward identities relating both amplitudes.
description: 7 pages
Chandra and XMM-Newton Detection of Large-scale Diffuse X-ray Emission from the Sombrero Galaxy
Creators: name: Li, Zhiyuan
name: Wang, Q. Daniel
name: Hameed, Salman
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present an X-ray study of the massive edge-on Sa galaxy, Sombrero (M~104; NGC 4594), based on XMM-Newton and Chandra observations. A list of 62 XMM-Newton and 175 Chandra discrete X-ray sources is provided. At energies above 2 keV, the source-subtracted X-ray emission is distributed similarly as the stellar K-band light and is primarily due to the residual emission from discrete sources. At lower energies, however, a substantial fraction of the source-subtracted emission arises from diffuse hot gas extending to ~20 kpc from the galactic center. The observed diffuse X-ray emission from the galaxy shows a steep spectrum that can be characterized by an optically-thin thermal plasma with temperatures of ~0.6-0.7 keV, varying little with radius. The diffuse emission has a total luminosity of ~3e39 erg/s in the 0.2-2 keV energy range. This luminosity is significantly smaller than the prediction by current numerical simulations for galaxies as massive as Sombrero. We argue that the stellar feedback likely plays an essential role in regulating the physical properties of hot gas. Indeed, the observed diffuse X-ray luminosity of Sombrero accounts for at most a few percent of the expected mechanical energy input from Type Ia supernovae. The inferred gas mass and metal content are also substantially less than those expected from stellar ejecta. We speculate that a galactic bulge wind, powered primarily by Type Ia supernovae, has removed much of the 'missing' energy and metal-enriched gas from regions revealed by the X-ray observations.
description: 25 pages, 11 figures, accepted to MNRAS
Ο νόμος περί αλλοδαπών: Εγκλήματα που τελούνται από αλλοδαπούς:
Creators: name: Τσέφου, Μαριέτα Γιώτη
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: αλλοδαποί
κύρωση
απέλαση
immigrants
penalty
deportation

description: Σκοπός της διπλωματικής εργασίας ήταν η μελέτη του νόμου περί αλλοδαπών και ειδικότερα η αντιμετώπιση των αδικημάτων που τελούνται από αλλοδαπούς. Εξετάσαμε την ιστορική εξέλιξη του δικαίου περί αλλοδαπών. Στη συνέχεια εξετάσαμε αναλυτικά το νόμο 3386/2005 και ειδικότερα τα άρθρα 83, 84 και 88.Aκόμη αναφερθήκαμε αναλυτικότερα στις ποινές και στα μέτρα ασφαλείας. Εξετάσαμε συγκεκριμένα τη δήμευση, την απέλαση διοικητική και δικαστική και αναφερθήκαμε σε ειδικότερα παραδείγματα από τη δικαστηριακή πρακτική. Ασχοληθήκαμε επιπλέον με τα δικονομικά ζητήματα του νόμου και ειδικότερα με την επαναπροώθηση, την μη ανασταλτικότητα της άσκησης των ένδικών μέσων και το θεσμό των αντιρρήσεων του άρθρου 565 Κ.Ποιν.Δ.
description: The aim of the present thesis was the study of the law concerning the immigrants and more specifically how are the crimes committed by immigrants dealt by the criminal law system. We examined the historical evolution of the laws concerning the immigrants. Furthermore we thoroughly examined the 3386/2005 law and in particular the articles 83, 84, 88. What is more we made a thorough analysis in the penalties and in the safety measures. We specifically examined the confiscation, the deportation, both administrative and juridical and we mentioned examples from juridical practice. We also examined the procedural issues of the law and more specifically the reforwarding, the non suspensive effect of the exercise of the legal remedy and finally the statute of the contestations legislated in the article 565 of the Penal Code Procedure.
Dynamical constraints on some orbital and physical properties of the WD0137-349 A/B binary system
Creators: name: Iorio, Lorenzo
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: Nuclear Theory (nucl-th)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: In this paper I deal with the WD0137-349 binary system consisting of a white dwarf (WD) and a brown dwarf (BD) in a close circular orbit of about 116 min. I, first, constrain the admissible range of values for the inclination i by noting that, from looking for deviations from the third Kepler law, the quadrupole mass moment Q would assume unlikely large values, incompatible with zero at more than 1-sigma level for i < 35 deg and i > 43 deg. Then, by conservatively assuming that the most likely values for i are those that prevent such an anomalous behavior of Q, i.e. those for which the third Kepler law is an adequate modeling of the orbital period, I obtain i=39 +/- 2 deg. Such a result is incompatible with the value i=35 deg quoted in literature by more than 2 sigma. Conversely, it is shown that the white dwarf's mass range obtained from spectroscopic measurements is compatible with my experimental range, but not for i=35 deg. As a consequence, my estimate of $i$ yields an orbital separation of a=(0.59 +/- 0.05)R_Sun and an equilibrium temperature of BD of T_eq=(2087 +/- 154)K which differ by 10% and 4%, respectively, from the corresponding values for i=35 deg.
description: LaTex2e, 11 pages, 3 figures, no tables. It refers to gr-qc/0611126 and better clarify the result obtained there. Accepted by Astrophysics and Space Science
title: Microbial diversity and abundance in the ocean around Iceland
Creators: name: Reynissn, Eyjólfur
name: Guðmundsson, Kristinn
name: Magnússon, Sveinn Haukur
name: Stefánsson, Sigmar Karl
name: Valsdóttir, Kristín J.
name: Þórólfsdóttir, Berglind
name: Hermundardóttir, Herdís E.
name: Marteinsson, Viggó Þór
Publisher: name: ASC 2013 - Theme session B
Year: 2024
Subjects: The sea and human culture and societies
Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author. A pioneering study on the diversity of small (nano- and pico- size) marine microorganisms in the waters around Iceland was initiated by some water samplings in 2011. Collection of water samples, mostly during the second half of May, has been continued annually since that, as well as some analysis of the samples. As expected, it is apparent from the preliminary result that micro organisms are most abundant in coastal regions, and the microbial numbers are high in the surface layer in comparison to deeper water. Furthermore, there is a positive trend between water temperature and abundance of micro organisms. The aim of this study is to study correlations between abundance and diversity of the small micro organisms and some commonly recorded environmental parameters (temperature, salinity, mixed layer depth, concentrations of nutrients and chlorophyll a, as well as index on zooplankton abundance). Special emphasis is put on registrations of the possible occurrence of known micro organisms that may be pathogenic to fish or other marine animals.
Additional file 3 of Developing a feedback-rich culture in academic medicine: the effect of coaching and 360-feedback on physician leadership
Creators: name: Schwartz, Rachel
name: Weimer-Elder, Barbette
name: Wilkins, Elizabeth
name: Deka, Dan
name: Wong, Stephanie
name: Dang, Bryan K.
name: Brown, Ryan
name: Kline, Merisa
name: Kwan, Lawrence
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Geology
subject: FOS: Earth and related environmental sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 3: Appendix C.
Effects of phonon interaction on the pairing in the high-T$c$ superconductors
Creators: name: Bang, Yunkyu
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the effects of phonon interaction on the superconducting pairing in the background of a d-wave gap, mediated by antiferromagnetic (AFM) spin fluctuations, using coupled BCS gap equations. We found that phonon interaction can induce a s-wave component to the d-wave gap in the (D+S) form with an interaction anisotropy and in the (D+$i$S) form without anisotropy, respectively. In either case, however, T$_c$ is not enhanced compared to the pure d-wave pairing without phonon interaction. On the other hand, anisotropic phonon interaction can dramatically enhance the d-wave pairing itself and therefore T$_c$, together with the AFM spin fluctuation interaction. This (D$_{AFM}$ + D$_{ph}$) type pairing exhibits strongly reduced isotope coefficient despite the large enhancement of T$_c$ by phonon interaction. Finally, we study the combined type of (D$_{AFM}$ + D$_{ph}$ +$i$S)) gap and calculate the penetration depth and specific heat to be compared with the experiments.
description: 9 pages, 10 figures
Exponential speedup in measuring out-of-time-ordered correlators with a single bit of quantum information
Creators: name: PG, Sreeram
name: Varikuti, Naga Dileep
name: Madhok, Vaibhav
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Out-of-time-ordered correlators (OTOC) are a quantifier of quantum information scrambling and quantum chaos. We propose an efficient quantum algorithm to measure OTOCs that provides an exponential speed-up over the best known classical algorithm provided the OTOC operator to be estimated admits an efficient gate decomposition. We also discuss a scheme to obtain information about the eigenvalue spectrum and the spectral density of OTOCs.
description: 5 pages
No Pedagogical Advantage Found Between LibGuides and Other Web Page Information Literacy Tutorials [Evidence Summary]
Creators: name: Miller, Kimberly
Publisher: name: Maryland Shared Open Access Repository
Year: 2015
Subjects: tutorials
LibGuides
information literacy

description: Evidence Summaries for the journal Evidence Based Library and Information Practice provide critical analysis and commentary on published literature to help librarians use researched-based evidence in their practice.
description: This evidence summary is a review and analysis of: Bowen, A. (2014). LibGuides and web-based library guides in comparison: Is there a pedagogical advantage? Journal of Web Librarianship, 8(2), 147-171. doi: 10.1080/19322909.2014.903709
The Effect of Transfer Printing on Pentacene Thin-Film Crystal Structure
Creators: name: Shao, Y.
name: Solin, S. A.
name: Hines, D. R.
name: Williams, E. D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The thermal deposition and transfer Printing method had been used to produce pentacene thin-films on SiO2/Si and plastic substrates (PMMA and PVP), respectively. X-ray diffraction patterns of pentacene thin films showed reflections associated with highly ordered polycrystalline films and a coexistence of two polymorph phases classified by their d-spacing, d(001): 14.4 and 15.4 A.The dependence of the c-axis correlation length and the phase fraction on the film thickness and printing temperature were measured. A transition from the 15.4 A phase towards 14.4 A phase was also observed with increasing film thickness. An increase in the c-axis correlation length of approximately 12% ~16% was observed for Pn films transfer printed onto a PMMA coated PET substrate at 100~120 C as compared to as-grown Pn films on SiO2/Si substrates. The transfer printing method is shown to be an attractive for the fabrication of pentacene thin-film transistors on flexible substrates partly because of the resulting improvement in the quality of the pentacene film.
description: 5 pages, 5 figures
Most EL CVn systems are inner binaries of hierarchical triples
Creators: name: Lagos, F.
name: Schreiber, M. R.
name: Parsons, S. G.
name: Gänsicke, B. T.
name: Godoy, N.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In spite of their importance for modern astronomy, we do not fully understand how close binary stars containing at least one white dwarf form from main sequence binary stars. The discovery of EL CVn binaries, close pre-white dwarfs with A/F main sequence star companions, offers now the unique possibility to test models of close compact binary star formation. Binary evolution theories predict that these EL CVn stars descend from very close main sequence binaries with orbital periods shorter than 3 days. If this is correct, nearly all EL CVn stars should be inner binaries of hierarchical triples because more than 95 per cent of very close main sequence binaries (the alleged progenitor systems) are found to be hierarchical triples. We here present SPHERE/IRDIS observations of five EL CVn binaries, finding in all of them tertiary objects, as predicted. We conclude that EL CVn systems are inner binaries of hierarchical triples and indeed descend from very close main sequence binaries that experience stable mass transfer.
description: 5 pages, 2 figures. Published in MNRAS letters
Beta-NMR of Isolated Lithium in Nearly Ferromagnetic Palladium
Creators: name: Parolin, T. J.
name: Salman, Z.
name: Chakhalian, J.
name: Song, Q.
name: Chow, K. H.
name: Hossain, M. D.
name: Keeler, T. A.
name: Kiefl, R. F.
name: Kreitzman, S. R.
name: Levy, C. D. P.
name: Miller, R. I.
name: Morris, G. D.
name: Pearson, M. R.
name: Saadaoui, H.
name: Wang, D.
name: MacFarlane, W. A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The temperature dependence of the frequency shift and spin-lattice relaxation rate of isolated, nonmagnetic Li-8 impurities implanted in a nearly ferromagnetic host (Pd) are measured by means of beta-detected nuclear magnetic resonance (b-NMR). The shift is negative, very large and increases monotonically with decreasing T in proportion to the bulk susceptibility of Pd for T > T*~ 100 K. Below T*, an additional shift occurs which we attribute to the response of Pd to the defect. The relaxation rate is much slower than expected for the large shift and is linear with T below T*, showing no sign of additional relaxation mechanisms associated with the defect.
description: 4 pages, 3 figures
Η εθνική ιδεολογία στις εικόνες των διδακτικών εγχειριδίων Νεότερης και Σύγχρονης Ιστορίας της Δευτεροβάθμιας Εκπαίδευσης: μια κριτική ανάγνωση της σχετικής εικονογράφησης:
Creators: name: Ξυπόλυτος, Βασίλειος Χρήστου
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: Εθνική ιδεολογία
Εικόνα
Γραμματική του Οπτικού Κειμένου
National ideology
Schoolbook picture
Grammar of Visual Design

description: Η παρούσα μεταπτυχιακή εργασία επιδιώκει την ανίχνευση του τρόπου με τον οποίο κατασκευάζεται η ιστορική μνήμη και η εθνική ταυτότητα μέσω της εικονογράφησης στα σχολικά εγχειρίδια Νεότερης και Σύγχρονης Ιστορίας της Δευτεροβάθμιας Εκπαίδευσης. Κεντρικός σκοπός της εργασίας είναι η κριτική ανάγνωση των εικόνων, κυρίως υπό το πρίσμα της εθνικής ιδεολογίας και με βάση τη «Γραμματική του Οπτικού Κειμένου», που προτείνουν οι Gunther Kress και Theo Van Leeuwen. Η εργασία χωρίζεται σε δύο μέρη, το θεωρητικό και το ερευνητικό. Στο πρώτο μέρος γίνεται λόγος για το Σχολικό Βιβλίο, την Παιδαγωγική της Ειρήνης, τη Διεθνή Έρευνα των Σχολικών Βιβλίων, το ρόλο της Εικονογράφησης και, τέλος, περιγράφεται η «Γραμματική του Οπτικού Κειμένου», η οποία επιλέχθηκε ως ερευνητική μέθοδος. Στο δεύτερο μέρος γίνεται η ανάλυση των εικόνων και ακολουθεί η συζήτηση των αναλύσεων αναφορικά με τον τρόπο κατασκευής της εθνικής ταυτότητας.
description: This essay tries to detect the way in which historical memory and national identity are formed through the images in Modern History Schoolbooks of Secondary Education. Central aim of this essay is the critical reading of images, particularly in the light of national ideology and based on “Grammar of Visual Design”, proposed by Gunther Kress and Theo Van Leeuwen. The essay is separated in two parts. In the first part, the author is referring to Schoolbooks, to Peace Pedagogy, to International Schoolbook Research, to the role of Schoolbook images and, finally, the “Grammar of Visual Design” is specified, which had been chosen as the method of analysis. The second part is the analysis of images, followed by the discussion of this analysis in reference to the construction of national identity.
title: Marine climate change research in Nordic regions: recent trends and current state
Creators: name: Pedersen, Martin W
name: Ferreira, Sofia A
name: Kokkalis, Alexandros
name: Holt, Rebecca
name: Woods, Pamela
name: Bardarson, Hlynur
name: Bonanomi, Sara
name: Boonstra, Wijnand
name: Butler, William
name: Diekert, Florian
name: Fouzai, Nadia
name: Holma, Maija
name: Kvile, Kristina
name: Nieminen, Emmi
name: Ottosen, Katharina
name: Richter, Andries
name: Rogers, Lauren
name: Romagnoni, Giovanni
name: Snickars, Martin
name: Törnroos, Anna
name: Weigel, Benjamin
name: Whittington, Jason
name: Yletyinen, Johanna
Publisher: name: ASC 2013 - Theme session B
Year: 2024
Subjects: The sea and human culture and societies
Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author. Ocean resources are subject to increasing anthropogenic exploitation, causing ecosystem vulnerability to climate change (CC). Such vulnerability is difficult to monitor, thus hypothetical future scenarios are challenging to predict. Although public awareness of the consequences of CC is limited, they are important topics of research due to their ecological and societal implications. The objective of this study was to assess the current state of CC research in the northern North Atlantic, which is economically important for fisheries and marine research. We analysed structure, focus, and historical trends of CC research through the categorization of 1478 peer-reviewed research articles by environmental variable, geographical region, group of organism, and discipline. From all the environmental variables analysed, temperature appeared to be the focus of most studies. In addition, we found that Atlantic cod was the most studied species, and the North Sea the most studied region. Furthermore, papers focused on biology increased significantly in proportion when compared to research on climatology and oceanography, thus suggesting an increased interest in indirect consequences of CC. We believe this study provides insight into the current state of CC research. Furthermore, we aim to provide a database that serves as a valuable asset for future CC studies.
Partial decay widths of $ϕ(2170)$ to kaonic resonances
Creators: name: Malabarba, Brenda B.
name: Ren, Xiu-Lei
name: Khemchandani, K. P.
name: Torres, A. Martinez
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In this work we study the strong decays of $ϕ(2170)$ to final states involving the kaonic resonances $K(1460)$, $K_1(1270)$ and $K_1(1400)$, on which experimental data have recently been extracted by the BESIII Collaboration. The formalism developed here is based on interpreting $ϕ(2170)$ and $K(1460)$ as states arising from three-hadron dynamics, which is inspired by our earlier works. For $K_1(1270)$ and $K_1(1400)$ we investigate different descriptions, such as a mixture of states belonging to the nonet of axial resonances, or the former one as a state originating from the vector-pseudoscalar dynamics. The ratios among the partial widths of $K^+(1460)K^-$, $K^+_1(1400)K^-$ and $K^+_1(1270)K^-$ obtained are compatible with the experimental results, reinforcing the three-body nature of $ϕ(2170)$. Within our formalism, we can also explain the suppressed decay of $ϕ(2170)$ to $K^*(892) \bar K^*(892)$, as found by the BESIII Collaboration. Furthermore, our results can be useful in clarifying the properties of $K(1460)$, $K_1(1270)$ and $K_1(1400)$ when higher statistics data would be available.
q-Deformed KP Hierarchy and q-Deformed Constrained KP Hierarchy
Creators: name: He, Jingsong
name: Li, Yinghua
name: Cheng, Yi
Publisher: name: arXiv
Year: 2006
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Using the determinant representation of gauge transformation operator, we have shown that the general form of $τ$ function of the $q$-KP hierarchy is a q-deformed generalized Wronskian, which includes the q-deformed Wronskian as a special case. On the basis of these, we study the q-deformed constrained KP ($q$-cKP) hierarchy, i.e. $l$-constraints of $q$-KP hierarchy. Similar to the ordinary constrained KP (cKP) hierarchy, a large class of solutions of $q$-cKP hierarchy can be represented by q-deformed Wronskian determinant of functions satisfying a set of linear $q$-partial differential equations with constant coefficients. We obtained additional conditions for these functions imposed by the constraints. In particular, the effects of $q$-deformation ($q$-effects) in single $q$-soliton from the simplest $τ$ function of the $q$-KP hierarchy and in multi-$q$-soliton from one-component $q$-cKP hierarchy, and their dependence of $x$ and $q$, were also presented. Finally, we observe that $q$-soliton tends to the usual soliton of the KP equation when $x\to 0$ and $q\to 1$, simultaneously.
description: Published in SIGMA (Symmetry, Integrability and Geometry: Methods and Applications) at http://www.emis.de/journals/SIGMA/
Probabilistic analysis of algorithms for cost constrained minimum weighted combinatorial objects
Creators: name: Frieze, Alan
name: Tkocz, Tomasz
Publisher: name: arXiv
Year: 2020
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: Discrete Mathematics (cs.DM)
subject: Combinatorics (math.CO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We consider cost constrained versions of the minimum spanning tree problem and the assignment problem. We assume edge weights are independent copies of a continuous random variable $Z$ that satisfies $F(x)=\Pr(Z\leq x)\approx x^α$ as $x\to0$, where $α\geq 1$. Also, there are $r=O(1)$ budget constraints with edge costs chosen from the same distribution. We use Lagrangean duality to construct polynomial time algorithms that produce asymptotically optimal solutions. For the spanning tree problem, we allow $r>1$, but for the assignment problem we can only analyse the case $r=1$.
description: 8 pages
PFA-GAN: Progressive Face Aging with Generative Adversarial Network
Creators: name: Huang, Zhizhong
name: Chen, Shouzhen
name: Zhang, Junping
name: Shan, Hongming
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Face aging is to render a given face to predict its future appearance, which plays an important role in the information forensics and security field as the appearance of the face typically varies with age. Although impressive results have been achieved with conditional generative adversarial networks (cGANs), the existing cGANs-based methods typically use a single network to learn various aging effects between any two different age groups. However, they cannot simultaneously meet three essential requirements of face aging -- including image quality, aging accuracy, and identity preservation -- and usually generate aged faces with strong ghost artifacts when the age gap becomes large. Inspired by the fact that faces gradually age over time, this paper proposes a novel progressive face aging framework based on generative adversarial network (PFA-GAN) to mitigate these issues. Unlike the existing cGANs-based methods, the proposed framework contains several sub-networks to mimic the face aging process from young to old, each of which only learns some specific aging effects between two adjacent age groups. The proposed framework can be trained in an end-to-end manner to eliminate accumulative artifacts and blurriness. Moreover, this paper introduces an age estimation loss to take into account the age distribution for an improved aging accuracy, and proposes to use the Pearson correlation coefficient as an evaluation metric measuring the aging smoothness for face aging methods. Extensively experimental results demonstrate superior performance over existing (c)GANs-based methods, including the state-of-the-art one, on two benchmarked datasets. The source code is available at~\url{https://github.com/Hzzone/PFA-GAN}.
title: Environment induced changes in krill abundance in the North Atlantic Ocean
Creators: name: Silva, Teresa
name: Gislason, Astthor
name: Licandro, Priscilla
name: Marteinsdottir, Gudrun
name: Astthorsson, Olafur S.
Publisher: name: ASC 2013 - Theme session B
Year: 2024
Subjects: The sea and human culture and societies
Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author. Sea surface temperature, sea surface salinity, NAO, surface chlorophyll a concentrations and timing of the spring bloom were used as explanatory variables to investigate the impacts of climate variations on krill abundance in the North Atlantic as recorded by the Continuous Plankton Recorder (CPR) survey during 1958 to 2007.
Fast and accurate approximation of the angle-averaged redistribution function for polarized radiation
Creators: name: Paganini, A.
name: Hashemi, B.
name: Ballester, E. Alsina
name: Belluzzi, L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Modeling spectral line profiles taking frequency redistribution effects into account is a notoriously challenging problem from the computational point of view, especially when polarization phenomena (atomic polarization and polarized radiation) are taken into account. Frequency redistribution effects are conveniently described through the redistribution function formalism, and the angle-averaged approximation is often introduced to simplify the problem. Even in this case, the evaluation of the emission coefficient for polarized radiation remains computationally costly, especially when magnetic fields are present or complex atomic models are considered. We aim to develop an efficient algorithm to numerically evaluate the angle-averaged redistribution function for polarized radiation. Our proposed approach is based on a low-rank approximation via trivariate polynomials whose univariate components are represented in the Chebyshev basis. The resulting algorithm is significantly faster than standard quadrature-based schemes for any target accuracy in the range between 10^-6 and 10^-2.
description: 12 pages, 10 figures, two appendices
title: Interannual variability in abundance of Calanus finmarchicus south and north of Iceland in relation to environmental conditions in spring 1990-2012
Creators: name: Gislason, Astthor
name: Petursdottir, Hildur
name: Gudmundsson, Kristinn
name: Silva, Teresa
Publisher: name: ASC 2013 - Theme session B
Year: 2024
Subjects: The sea and human culture and societies
Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author. A 23-year time series of the abundance of Calanus finmarchicus from two standard sections differing in hydrographical conditions (Atlantic Water south of Iceland, Subarctic Water north of Iceland) was examined in relation to hydrography, phytoplankton dynamics and large scale climatic forcing (NAO). In the sea area around Iceland, C. finmarchicus is the most abundant mesozooplankter. Large fluctuations in abundance and stages structure of C. finmarchicus between years were observed. The variations are not in tune in south and north, indicating that they are influenced by different forcing factors. In the south the year to year variability is mainly dictated bottom-up by phytoplankton growth, whereas in the north advection of animals from the south appears more important. In neither region, a unidirectional temporal trend in abundance of C. finmarchicus was detected. Based on a comparison with time series from nearby areas, it is hypothesized that the growth and development of C. finmarchicus in Icelandic waters is more affected by local conditions than large scale climatic forcing.
Excitation energy and angular momentum dependence of the nuclear level density parameter around A$\approx $110
Creators: name: Roy, Pratap
name: Mukhopadhyay, S.
name: Aggarwal, Mamta
name: Pandit, Deepak
name: Rana, T. K.
name: Kundu, Samir
name: Ghosh, T. K.
name: Banerjee, K.
name: Mukherjee, G.
name: Manna, S.
name: Sen, A.
name: Pandey, R.
name: Mondal, Debasish
name: Pal, S.
name: Paul, D.
name: Atreya, K.
name: Bhattacharya, C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Neutron kinetic energy spectra in coincidence with low-energy $γ$-ray multiplicities have been measured around $A\approx $ 110 in the $^{16}$O, $^{20}$Ne + $^{93}$Nb reactions in a compound nuclear excitation energy range of $\approx $ 90 - 140 MeV. The excitation energy (temperature) and angular momentum (spin) dependence of the inverse level density parameter $k$ has been investigated by comparing the experimental data with statistical Hauser-Feshbach calculation. In contrast to the available systematic in this mass region, the inverse level density parameter showed an appreciable increase as a function of the excitation energy. The extracted $k$-values at different angular momentum regions, corresponding to different $γ$-multiplicities also showed an overall increase with the average nuclear spins. The experimental results have been compared with a microscopic statistical-model calculation and found to be in reasonable agreement with the data. The results provide useful information to understand the variation of nuclear level density at high temperature and spins.