cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Quasi-normal modes and microscopic description of 2D black holes
Creators: name: Cadoni, Mariano
name: Oi, Mauro
name: Sanna, Andrea Pierfrancesco
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate the possibility of using quasi-normal modes (QNMs) to probe the microscopic structure of two-dimensional (2D) anti-de Sitter (AdS$_2$) dilatonic black holes. We first extend previous results on the QNMs spectrum, found for external massless scalar perturbations, to the case of massive scalar perturbations. We find that the quasi-normal frequencies are purely imaginary and scale linearly with the overtone number. Motivated by this and extending previous results regarding Schwarzschild black holes, we propose a microscopic description of the 2D black hole in terms of a coherent state of $N$ massless particles quantized on a circle, with occupation numbers sharply peaked on the characteristic QNMs frequency $\hat ω$. We further model the black hole as a statistical ensemble of $N$ decoupled quantum oscillators of frequency $\hatω$. This allows us to recover the Bekenstein-Hawking (BH) entropy $S$ of the hole as the leading contribution to the Gibbs entropy for the set of oscillators, in the high-temperature regime, and to show that $S=N$. Additionally, we find sub-leading logarithmic corrections to the BH entropy. We further corroborate this microscopic description by outlining a holographic correspondence between QNMs in the AdS$_2$ bulk and the de Alfaro-Fubini-Furlan conformally invariant quantum mechanics. Our results strongly suggest that modelling a black hole as a coherent state of particles and as a statistical ensemble of decoupled harmonic oscillators is always a good approximation in the large black-hole mass, large overtone number limit.
description: 19 pages, no figures, several typos corrected, some clarifications added. Matches version accepted for pubblication in JHEP
Carriers of \emph{Sargassum} and mechanism for coastal inundation in the Caribbean Sea
Creators: name: Andrade-Canto, F.
name: Beron-Vera, F. J.
name: Goni, G. J.
name: Karrasch, D.
name: Olascoaga, M. J.
name: Trinanes, J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We identify effective carriers of \emph{Sargassum} in the Caribbean Sea and describe a mechanism for coastal choking. Revealed from satellite altimetry, the carriers of \emph{Sargassum} are mesoscale eddies (vortices of 50-km radius or larger) with coherent material (i.e., fluid) boundaries. These are observer-independent -- \emph{unlike} eddy boundaries identified with instantaneously closed streamlines of the altimetric sea-surface height field -- and furthermore harbor finite-time attractors for networks of elastically connected finite-size buoyant or "inertial" particles dragged by ocean currents and winds, a mathematical abstraction of \emph{Sargassum} rafts. The mechanism of coastal inundation, identified using a minimal model of surface-intensified Caribbean Sea eddies, is thermal instability in the presence of bottom topography.
description: To appear in Physics Fluids
In the Year of the Rat. From infection to poisoning in David Peace's Occupied City
Creators: name: Vallorani, Nicoletta
Publisher: name: Università degli  Studi di Milano
Year: 2014

description: Susan Sontag’s probably most influencing work – her reflection on the metaphoric
aura enveloping certain diseases – may be of some use in introducing my approach to
David Peace’s narrative, with particular reference to the so called Tokyo Trilogy
description: Altre Modernità, No 11 (2014): Spionaggi
Photocatalytic water splitting ability of Fe/MgO-rGO nanocomposites towards hydrogen evolution
Creators: name: Sharmin, Fahmida
name: Roy, Dayal Chandra
name: Basith, M. A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Photocatalytic water splitting has greatly stimulated as an ideal technique for producing hydrogen (H$_{2}$) fuel by employing two renewable sources, i.e., water and solar energy. Here, we have adopted a facile hydrothermal approach for the successful synthesis of reduced graphene oxide (rGO) incorporated Fe/MgO nanocomposites followed by thermal treatment at inert atmosphere to investigate their ability for photodegradation and photocatalytic hydrogen evolution via water splitting. Transmission Electron Microscopy images of Fe/MgO-rGO nanocomposite ensured the distribution of Fe/MgO nanoparticles throughout rGO sheets. Notably, all rGO supported nanocomposites, especially the one, thermally treated at 500 $^{o}$C at Argon (Ar) atmosphere has demonstrated significantly higher photocatalytic efficiency towards the photodegradation of a toxic textile dye, rhodamine B, than pristine MgO and commercially available Degussa P25 titania nanoparticles as well as other composites. Under solar irradiation, Fe/MgO-rGO(500) nanocomposite exhibited 86% degradation of rhodamine B dye and generated almost four times higher H$_{2}$ via photocatalytic water splitting compared to commercially available P25 titania nanoparticles. This promising photocatalytic ability of the Fe/MgO-rGO(500) nanocomposite can be attributed to the improved morphological and surface features due to heat treatment at inert atmosphere as well as escalated charge carrier separation with increased light absorption capacity imputed to rGO incorporation.
Long anisotropic absolute refractory periods with rapid rise-times to reliable responsiveness
Creators: name: Sardi, Shira
name: Vardi, Roni
name: Tugendhaft, Yael
name: Sheinin, Anton
name: Goldental, Amir
name: Kanter, Ido
Publisher: name: arXiv
Year: 2021
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: Biological Physics (physics.bio-ph)
subject: Cell Behavior (q-bio.CB)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Refractoriness is a fundamental property of excitable elements, such as neurons, indicating the probability for re-excitation in a given time-lag, and is typically linked to the neuronal hyperpolarization following an evoked spike. Here we measured the refractory periods (RPs) in neuronal cultures and observed that an average anisotropic absolute RP could exceed 10 milliseconds and its tail 20 milliseconds, independent of a large stimulation frequency range. It is an order of magnitude longer than anticipated and comparable with the decaying membrane potential timescale. It is followed by a sharp rise-time (relative RP) of merely ~1 millisecond to complete responsiveness. Extracellular stimulations result in longer absolute RPs than solely intracellular ones, and a pair of extracellular stimulations from two different routes exhibits distinct absolute RPs, depending on their order. Our results indicate that a neuron is an accurate excitable element, where the diverse RPs cannot be attributed solely to the soma and imply fast mutual interactions between different stimulation routes and dendrites. Further elucidation of neuronal computational capabilities and their interplay with adaptation mechanisms is warranted.
description: 28 pages, 6 figures
Asymptotically cylindrical 7-manifolds of holonomy G_2 with applications to compact irreducible G_2-manifolds
Creators: name: Kovalev, Alexei
name: Nordström, Johannes
Publisher: name: arXiv
Year: 2009
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C29 (Primary) 53C21, 32Q25, 58D27 (Secondary)

description: We construct examples of exponentially asymptotically cylindrical Riemannian 7-manifolds with holonomy group equal to G_2. To our knowledge, these are the first such examples. We also obtain exponentially asymptotically cylindrical coassociative calibrated submanifolds. Finally, we apply our results to show that one of the compact G_2-manifolds constructed by Joyce by desingularisation of a flat orbifold T^7/Γcan be deformed to one of the compact G_2-manifolds obtainable as a generalized connected sum of two exponentially asymptotically cylindrical SU(3)-manifolds via the method given by the first author (math.DG/0012189).
description: 36 pages; v2: corrected trivial typos; v3: some arguments corrected and improved; v4: a number of improvements on presentation, paritularly in sections 4 and 6, including an added picture.
Interaction of antiprotons with Rb atoms and a comparison of antiproton stopping powers of the atoms H, Li, Na, K, and Rb
Creators: name: Lühr, Armin
name: Fischer, Nicolas
name: Saenz, Alejandro
Publisher: name: arXiv
Year: 2008
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: Ionization and excitation cross sections as well as electron-energy spectra and stopping powers of the alkali metal atoms Li, Na, K, and Rb colliding with antiprotons were calculated using a time-dependent channel-coupling approach. An impact-energy range from 0.25 keV to 4000 keV was considered. The target atoms are treated as effective one-electron systems using a model potential. The results are compared with calculated cross sections for antiproton-hydrogen atom collisions.
description: 6 pages, 4 figures, conference
Study of the D0 --> pi+ pi- pi0 decay at BABAR
Creators: name: Gaspero, Mario
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The Dalitz-plot of the Decay D0 --> pi+ pi- pi0 measured by the BABAR Collaboration shows the structure of a final state having quantum numbers IG JPC = 0- 0--. An isospin analysis of the Daliz-plot finds that the I = 0 contribution is about 96%. This high I = 0 contribution is unexpected because the weak interaction violates the isospin.
description: 8 pages, 2 figures, talk given at the 13.th International Conference on Hadron Spectroscopy, Tallahassee, FL, USA, November 29 - December 4, 2009. The second version corrects the errors of the amplitudes in the second column of Table 1.
B(l^p) is never amenable
Creators: name: Runde, Volker
Publisher: name: arXiv
Year: 2009
Subjects: subject: Functional Analysis (math.FA)
subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: 47L10 (Primary), 46B07, 46B45, 46H20 (Secondary)

description: We show that, if $E$ is a Banach space with a basis satisfying a certain condition, then the Banach algebra $\ell^\infty({\cal K}(\ell^2 \oplus E))$ is not amenable; in particular, this is true for $E = \ell^p$ with $p \in (1,\infty)$. As a consequence, $\ell^\infty({\cal K}(E))$ is not amenable for any infinite-dimensional ${\cal L}^p$-space. This, in turn, entails the non-amenability of ${\cal B}(\ell^p(E))$ for any ${\cal L}^p$-space $E$, so that, in particular, ${\cal B}(\ell^p)$ and ${\cal B}(L^p[0,1])$ are not amenable.
description: 13 pages; final touchups
Ground State Entanglement in One Dimensional Translationally Invariant Quantum Systems
Creators: name: Irani, Sandy
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We examine whether it is possible for one-dimensional translationally-invariant Hamiltonians to have ground states with a high degree of entanglement. We present a family of translationally invariant Hamiltonians {H_n} for the infinite chain. The spectral gap of H_n is Omega(1/poly(n)). Moreover, for any state in the ground space of H_n and any m, there are regions of size m with entanglement entropy Omega(min{m,n}). A similar construction yields translationally-invariant Hamiltonians for finite chains that have unique ground states exhibiting high entanglement. The area law proven by Hastings gives a constant upper bound on the entanglement entropy for 1D ground states that is independent of the size of the region but exponentially dependent on 1/Delta, where Delta is the spectral gap. This paper provides a lower bound, showing a family of Hamiltonians for which the entanglement entropy scales polynomially with 1/Delta. Previously, the best known such bound was logarithmic in 1/Delta.
description: 22 pages. v2 is the published version, with additional clarifications, publisher's version available at http://jmp.aip.org/resource/1/jmapaq/v51/i2
Cosmological Constraints on Strongly Coupled Moduli from Cosmic Strings
Creators: name: Sabancilar, Eray
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Cosmological constraints on moduli, whose coupling to matter is stronger than Planck mass suppressed coupling, are derived. In particular, moduli are considered to be produced by oscillating loops of cosmic strings and constraints are obtained from their effects on big bang nucleosynthesis and their contribution to diffuse gamma ray background and dark matter. Large volume and warped Type-IIB flux compactifications are taken as examples where strongly coupled moduli are present. Finally, the constraints on cosmic string tension, modulus mass and modulus coupling constant are obtained and it is shown that the constraints are relaxed significantly when the coupling constant is large enough. In addition, the effects of thermal production of moduli are considered and the corresponding constraints are derived.
description: 14 pages, 2 figures
High-Resolution Spectroscopy of Extremely Metal-Poor Stars in the Least Evolved Galaxies: Leo IV
Creators: name: Simon, Joshua D.
name: Frebel, Anna
name: McWilliam, Andrew
name: Kirby, Evan N.
name: Thompson, Ian B.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present high-resolution Magellan/MIKE spectroscopy of the brightest star in the ultra-faint dwarf galaxy Leo IV. We measure an iron abundance of [Fe/H] = -3.2, adding to the rapidly growing sample of extremely metal-poor stars being identified in Milky Way satellite galaxies. The star is enhanced in the alpha elements Mg, Ca, and Ti by ~0.3 dex, very similar to the typical Milky Way halo abundance pattern. All of the light and iron-peak elements follow the trends established by extremely metal-poor halo stars, but the neutron-capture elements Ba and Sr are significantly underabundant. These results are quite similar to those found for stars in the ultra-faint dwarfs Ursa Major II, Coma Berenices, Bootes I, and Hercules, suggesting that the chemical evolution of the lowest luminosity galaxies may be universal. The abundance pattern we observe is consistent with predictions for nucleosynthesis from a Population III supernova explosion. The extremely low metallicity of this star also supports the idea that a significant fraction (>10%) of the stars in the faintest dwarfs have metallicities below [Fe/H] = -3.0.
description: 9 pages, 3 color figures, 3 tables. Accepted for publication in ApJ
The origin of the infrared emission in radio galaxies II: analysis of mid- to far-infrared Spitzer observations of the 2Jy sample
Creators: name: Dicken, D.
name: Tadhunter, C.
name: Axon, D.
name: Morganti, R.
name: Inskip, K. J.
name: Holt, J.
name: Delgado, R. Gonzalez
name: Groves, B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present an analysis of deep mid- to far-infrared (MFIR) Spitzer photometric observations of the southern 2Jy sample of powerful radio sources (0.05 < z < 0.7), conducting a statistical investigation of the links between radio jet, AGN, starburst activity and MFIR properties. This is part of an ongoing extensive study of powerful radio galaxies that benefits from both complete optical emission line information and a uniquely high detection rate in the far-infrared (far-IR). We find tight correlations between the MFIR and [OIII] emission luminosities, which are significantly better than those between MFIR and extended radio luminosities, or between radio and [OIII] luminosities. Since [OIII] is a known indicator of intrinsic AGN power, these correlations confirm AGN illumination of the circum-nuclear dust as the primary heating mechanism for the dust producing thermal MFIR emission at both 24 and 70 microns. We demonstrate that AGN heating is energetically feasible, and identify the narrow line region clouds as the most likely location of the cool, far-IR emitting dust. Starbursts make a major contribution to the heating of the cool dust in only 15-28% of our targets. We also investigate the orientation dependence of the continuum properties, finding that the broad- and narrow-line objects in our sample with strong emission lines have similar distributions of MFIR luminosities and colours. Therefore our results are entirely consistent with the orientation-based unified schemes for powerful radio galaxies. However, the weak line radio galaxies (WLRG) form a separate class of objects with intrinsically low luminosity AGN in which both the optical emission lines and the MFIR continuum are weak.
description: 29 pages, 5 figures, Accepted for publication in The Astrophysical Journal
Quantum noise limited and entanglement-assisted magnetometry
Creators: name: Wasilewski, W.
name: Jensen, K.
name: Krauter, H.
name: Renema, J. J.
name: Balabas, M. V.
name: Polzik, E. S.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study experimentally the fundamental limits of sensitivity of an atomic radio-frequency magnetometer. First we apply an optimal sequence of state preparation, evolution, and the back-action evading measurement to achieve a nearly projection noise limited sensitivity. We furthermore experimentally demonstrate that Einstein-Podolsky-Rosen (EPR) entanglement of atoms generated by a measurement enhances the sensitivity to pulsed magnetic fields. We demonstrate this quantum limited sensing in a magnetometer utilizing a truly macroscopic ensemble of 1.5*10^12 atoms which allows us to achieve sub-femtoTesla/sqrt(Hz) sensitivity.
description: To appear in Physical Review Letters, April 9 issue (provisionally)
Cobalt Occurrence in Soils and Forages in Relation to a Nutritional Disorder in Ruminants: A Review of the Literature
Creators: name: Beeson, Kenneth C.
name: Beeson, Kenneth C.
Publisher: name: Unknown
Year: 1950
Subjects: Crop Production/Industries
Livestock Production/Industries
Research and Development/Tech Change/Emerging Technologies
Resource /Energy Economics and Policy

description: Excerpt from the report Introduction: The importance of cobalt as a limiting factor in the nutrition of sheep and cattle in the United States has resulted in several investigations of its occurrence in the vegetation and soils in trouble areas. Much of the pertinent literature is found in foreign journals and is not readily available to those engaged in field work. Furthermore, the volume of the cobalt literature suggests the need for a summary and evaluation of those reports dealing with the cobalt content of vegetation and its relationship to soil. In this review the purpose has been to present a critical and comprehensive survey of the literature rather than a series of abstracts of individual papers.
Forschungsdaten. Zuhause in einer Bibliothek durch FDM-Support.
Creators: name: Strauch-Davey, Annette
Publisher: name: Zenodo
Year: 2022
Subjects: FDM
Forschungsdaten
Forschungsdatenmanagement
RDM
research data management
Open Science

description: Diese Folien sind im Rahmen eines Webinars am 18. Februar 2022 entstanden: ‘Die Forschungsdaten Ihrer Institution verdienen ein gutes Zuhause’ Veröffentlichen, Archivieren und Erhalten von Daten Die Rolle der Bibliothek bei der Unterstützung von Forschern mit FDM (DMPs, Auswahl des Aufbewahrungsortes für Forschungsdaten) Verknüpfung von Forschungsdaten mit Autoren (ORCID), dem wissenschaftlichen Datensatz und anderen Objekten DataCite und die Bedeutung der Vollständigkeit von Metadaten

 https://www.elsevier.com/de-de/solutions/pure/fdm-webinarserie?utm_campaign=FDM+Webinarserie&utm_source=partner_bit&utm_medium=banner&utm_content=banner&dgcid=RN_AG_Program_400001484 Dabei wurde auch auf die Rolle von Open Access und Open Science eingegangen sowie die sehr wichtige Rolle der Metadaten (Ontologien, Klassifikationen).
title: ÐÐ»Ð¸ÑÐ½Ð¸Ðµ Ð²ÐµÐ»Ð¸ÑÐ¸Ð½Ñ Ð½Ð°Ð³ÑÑÐ¶ÐµÐ½Ð¸Ñ Ð¸ Ð°ÑÐ¸Ð¼Ð¼ÐµÑÑÐ¸Ð¸ Ð½Ð° Ð¿ÑÐ¾Ð´Ð¾Ð»Ð¶Ð¸ÑÐµÐ»ÑÐ½Ð¾ÑÑÑ ÑÐ¾ÑÑÐ° ÑÑÑÐ°Ð»Ð¾ÑÑÐ½Ð¾Ð¹ ÑÑÐµÑÐ¸Ð½Ñ Ð² ÑÐ¸ÑÐ°Ð½Ð¾Ð²Ð¾Ð¼ ÑÐ¿Ð»Ð°Ð²Ðµ Ð¿ÑÐ¸ ÑÐµÐ³ÑÐ»ÑÑÐ½Ð¾Ð¼ Ð½Ð°Ð³ÑÑÐ¶ÐµÐ½Ð¸Ð¸
title: Influence of load amount and asymmetry on the duration of growth of a fatigue crack in a titanium alloy under regular loading
Creators: name: ÐÐ°Ð´Ð¸ÐºÐ¾Ð², ÐÐ¸ÑÐ¸Ð»Ð»
name: Ð¡Ð°Ð²ÐºÐ¸Ð½, ÐÐ»ÐµÐºÑÐµÐ¹
name: ÐÐ±Ð°Ð»ÑÐ°Ð½, ÐÐ°Ð½Ð¸Ð»Ð°
name: Ð¡ÐµÐ½ÑÐ¾Ð², ÐÐ¸ÑÐ¸Ð»Ð»
name: "Ð¡Ð¾Ð²ÑÐµÐ¼ÐµÐ½Ð½Ð¾Ðµ Ð¼Ð°ÑÐ¸Ð½Ð¾ÑÑÑÐ¾ÐµÐ½Ð¸Ðµ: Ð½Ð°ÑÐºÐ° Ð¸ Ð¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°Ð½Ð¸Ðµ", Ð¼ÐµÐ¶Ð´ÑÐ½Ð°ÑÐ¾Ð´Ð½Ð°Ñ Ð½Ð°ÑÑÐ½Ð°Ñ ÐºÐ¾Ð½ÑÐµÑÐµÐ½ÑÐ¸Ñ (13; 2024; Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³)
Publisher: name: ÐÐÐÐÐ¢ÐÐ¥-ÐÐ ÐÐ¡Ð¡
Year: 2024
Subjects: Ð¢Ð¸ÑÐ°Ð½Ð¾Ð²ÑÐµ ÑÐ¿Ð»Ð°Ð²Ñ
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fatigue crack growth kinetics
modeling the durability of crack growth

description: ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð° Ð¿ÑÐ¾Ð´Ð¾Ð»Ð¶Ð¸ÑÐµÐ»ÑÐ½Ð¾ÑÑÑ ÑÐ¾ÑÑÐ° ÑÑÑÐ°Ð»Ð¾ÑÑÐ½Ð¾Ð¹ ÑÑÐµÑÐ¸Ð½Ñ ÑÐ¸ÑÐ°Ð½Ð¾Ð²Ð¾Ð³Ð¾ ÑÐ¿Ð»Ð°Ð²Ð° ÐÐ¢-3Ð (Ð¿ÑÐµÐ²Ð´Ð¾-Î± ÑÑÑÑÐºÑÑÑÐ°) Ð¿ÑÐ¸ ÑÐµÐ³ÑÐ»ÑÑÐ½Ð¾Ð¼ ÑÐ¸Ð¿Ðµ ÑÐ¸ÐºÐ»Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð½Ð°Ð³ÑÑÐ¶ÐµÐ½Ð¸Ñ. Ð Ð°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ð¾ Ð²Ð»Ð¸ÑÐ½Ð¸Ðµ ÑÐ°Ð·Ð½Ð¾Ð¹ Ð°ÑÐ¸Ð¼Ð¼ÐµÑÑÐ¸Ð¸ Ð¸ Ð·Ð½Ð°ÑÐµÐ½Ð¸Ñ Ð½Ð°Ð³ÑÑÐ·ÐºÐ¸ Ð½Ð° ÑÐ¾ÑÑ ÑÑÑÐ°Ð»Ð¾ÑÑÐ½ÑÑ ÑÑÐµÑÐ¸Ð½ Ð² ÑÐºÐ°Ð·Ð°Ð½Ð½Ð¾Ð¼ ÑÐ¸ÑÐ°Ð½Ð¾Ð²Ð¾Ð¼ ÑÐ¿Ð»Ð°Ð²Ðµ. ÐÐ¾Ð»ÑÑÐµÐ½Ñ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½ÑÐµ Ð´Ð°Ð½Ð½ÑÐµ ÐºÐ¸Ð½ÐµÑÐ¸ÐºÐ¸ ÑÐ¾ÑÑÐ° ÑÑÑÐ°Ð»Ð¾ÑÑÐ½ÑÑ ÑÑÐµÑÐ¸Ð½ Ð¿ÑÐ¸ ÑÐ°ÐºÐ¾Ð¼ ÑÐ¸Ð¿Ðµ Ð½Ð°Ð³ÑÑÐ¶ÐµÐ½Ð¸Ñ. ÐÑÐ¾Ð²ÐµÐ´ÐµÐ½ Ð°Ð½Ð°Ð»Ð¸Ð· ÐºÐ¸Ð½ÐµÑÐ¸ÐºÐ¸ ÑÐ¾ÑÑÐ° ÑÑÐµÑÐ¸Ð½ Ð² Ð·Ð°Ð²Ð¸ÑÐ¸Ð¼Ð¾ÑÑÐ¸ Ð¾Ñ ÑÐ²Ð¾Ð¹ÑÑÐ²Ð° Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð°, Ð¸Ð·ÑÑÐµÐ½Ð¸Ñ Ð¿Ð¾Ð»ÑÑÐµÐ½Ð½ÑÑ ÐºÐ¸Ð½ÐµÑÐ¸ÑÐµÑÐºÐ¸Ñ Ð´Ð¸Ð°Ð³ÑÐ°Ð¼Ð¼ ÑÑÑÐ°Ð»Ð¾ÑÑÐ½Ð¾Ð³Ð¾ ÑÐ°Ð·ÑÑÑÐµÐ½Ð¸Ñ (ÐÐÐ£Ð ) Ð¸
ÑÑÐ°ÐºÑÐ¾Ð³ÑÐ°ÑÐ¸ÑÐµÑÐºÐ¸Ñ Ð¾ÑÐ¾Ð±ÐµÐ½Ð½Ð¾ÑÑÐµÐ¹ ÑÐ°Ð·Ð²Ð¸ÑÐ¸Ñ ÑÑÐµÑÐ¸Ð½. ÐÐ±ÑÑÐ¶Ð´Ð°ÑÑÑÑ Ð¼ÐµÑÐ°Ð½Ð¸Ð·Ð¼Ñ ÑÐ°ÐºÐ¾Ð³Ð¾ Ð¿Ð¾Ð²ÐµÐ´ÐµÐ½Ð¸Ñ ÑÑÐµÑÐ¸Ð½ Ð¸ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¿ÑÐ¾Ð´Ð¾Ð»Ð¶Ð¸ÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸ ÐµÐµ ÑÐ°Ð·Ð²Ð¸ÑÐ¸Ñ.
description: The duration of growth of a fatigue crack in titanium alloy PT-3V (pseudo-Î± structure) under a regular type of cyclic loading has been studied. The influence of different asymmetries and load values on the growth of fatigue cracks in the specified titanium alloy is considered. Experimental data on the kinetics of fatigue crack growth under this type of loading were obtained. An analysis of the kinetics of crack growth was carried out depending on the properties of the material, a study of the obtained fatigue fracture kinetics diagrams (henceforth FFKD) and fractographic features of crack development. The mechanisms of this behavior of cracks and modeling the duration of its development are discussed.
Inclination pathways of planet-crossing asteroids
Creators: name: Namouni, Fathi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Long-term statistical simulations of the past evolution of high-inclination Centaurs showed that their orbits tend to be polar with respect to the solar system's invariable plane over a large semi-major axis range in trans-neptunian space. Here, we lay the analytical foundation of the study of the inclination pathways of planet-crossing asteroids that explains these findings. We show that the Tisserand relation partitions the inclination-semi-major axis parameter space of the three-body problem into distinct regions depending on the asteroid's Tisserand parameter T or equivalently its orbital inclination I_infinity far from the planet. The Tisserand relation shows that asteroids with I_infinity > 110 deg. (T < -1) cannot be injected inside the planet's orbit. Injection onto retrograde orbits and high-inclination prograde orbits occurs inside the inclination corridor 45 deg. < I_infinity < 110 deg. (-1< T < 2). Inclination dispersion across the inclination pathway for moderate and high inclinations is explained by the secular perturbations from the planet and is smallest for polar orbits. When a planet-crossing asteroid temporarily leaves the inclination pathway, its long term evolution still depends on its Tisserand parameter as evidenced by its eccentricity dispersion. Simulations of asteroid orbits using the equations of motion with Neptune as the perturbing planet confirm these results for moderate to high inclinations, forward and backward in time because the Tisserand relation is time independent. The Tisserand inclination pathways will provide important constraints on comet delivery from the outer solar system as well as on the possible presence of unknown planets in trans-neptunian space.
description: 16 pages, 9 figures
Managing institutional differences for international outsourcing success: the case of a small New Zealand manufacturing firm
Creators: name: Sharma, RR
name: Lindsay, V
name: Everton, N
Publisher: name: Open Access Victoria University of Wellington | Te Herenga Waka
Year: 2021
Subjects: subject: 150599 Marketing not elsewhere classified
subject: FOS: Economics and business
subject: 150399 Business and Management not elsewhere classified

description: Purpose – Most of the research on international outsourcing of value chain activities focuses on larger firms. The purpose of this paper is to fill an important research gap by exploring how small firms manage institutional differences to enhance their international outsourcing success. Design/methodology/approach – The paper uses data from interviews conducted with two managers of a small New Zealand apparel manufacturing firm who have over 35 years of combined experience with international outsourcing. The firmhad both failed and successful experiences in its international outsourcing ventures. Findings are discussed in the context of the extant literature on international outsourcing. Findings – Small firms overcome institutional constraints they face in offshore locations by leveraging from their entrepreneurial skills, learning from failures and using a relational governance mode. This results in achieving performance targets and sustaining long-term relationships with suppliers, defined as international outsourcing success in this study. Research limitations/implications – The findings may not be generalised as they are based on a single case and cover only the client perspective. The study contributes to the offshoring literature from the perspective of smaller firms and calls for quantitative investigations to generalise the findings. Practical implications – The key implications include that small firms need to develop quality relationships and leverage from their unique entrepreneurial capabilities to enhance their success while outsourcing to relatively different institutional environments. Moreover, even a failed experience might help generate subsequent multiple successful ventures, if lessons are learned and behaviour adapted accordingly. Operating in emerging economies is much more challenging than managers from developed markets usually expect – thus the need for them to understand and prepare well before undertaking operations in these markets. Originality/value – With the rise of international outsourcing of value chain activities, the findings are useful to small firms aiming to achieve success in their outsourcing ventures in offshore locations. This study is one of only a few studies investigating small firms’ international outsourcing that examines both failure and success in an institutionally diverse context.
Large-Theta(13) Perturbation Theory of Neutrino Oscillation
Creators: name: Minakata, Hisakazu
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Keeping in mind the possibility of large theta(13), which will be soon explored by reactor and accelerator experiments, I formulate a perturbation theory of neutrino oscillation under the ansatz, sin^2(theta_{13}) \simeq Delta m^2_{21}/Δm^2_{31} \simeq 0.03, which is comparable to the Chooz limit. Under the framework, I derive the perturbative formula of the nu_{e} appearance probability valid to order ε^2 in which effects of arbitrary matter density profile is taken into account. I use the formula to analyze problem of possible obstruction to detecting lepton CP violation by effects of asymmetry in matter density profile. Though the asymmetry could be large for neutrino trajectories which traverse both continental and sea crust, its effect on obscuring CP violation measurement is found to be quite small.
description: 9 pages, 1 figure
Il cavo orale nel paziente obeso
Creators: name: Faggella, Antonella <1979>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2008
Subjects: MED/28 Malattie odontostomatologiche

description: Le condizioni di sovrappeso ed obesità anche in età evolutiva sono aumentate negli ultimi decenni al punto che, secondo l'Organizzazione Mondiale della Sanità, sono diventate un problema di salute pubblica in tutti i Paesi occidentali.
Questa tesi è nata nell’obiettivo di individuare caratteristiche odontostomatologiche in pazienti affetti da obesità; il gruppo campione(80 pazienti, età media 10,5 anni) è stato suddiviso in due sottogruppi: sottogruppo A comprendente 54 pazienti affetti da obesità primaria, sottogruppo B comprendente 26 pazienti obesi portatori o di sindromi genetiche in cui l’obesità risulta essere, in letteratura, parte del quadro sindromico o affetti da varie forme di disabilità. Al gruppo controllo, randomizzato, appartengono 54 pazienti normopeso con anamnesi medica negativa.
Sono state principalmente indagate la prevalenza del la patologia cariosa, l’ età dentale, il grado di maturazione ossea e la presenza di malocclusioni.
Dallo studio non emerge una correlazione tra obesità primaria e suscettibil ità al la patologia cariosa. Si rileva invece che tutti i pazienti affetti da obesità presentano un’anticipata età dentale, un’avanzata maturazione ossea e patologie ortopedico-ortodontiche.
Da qui la necessità di progettare piani di trattamento in relazione al l’anomala tipologia di accrescimento,valutando la maturità scheletrica sulla base dello stadio di maturazione delle vertebre cervicali.
Il trattamento del paziente af fetto da obesità va affrontato in un’ottica di interdisciplinarietà in cui all’odontoiatra e all’ortodontista si affiancano il pediatra anche per l’ individuazione delle fasce di pazienti a rischio di patologie del cavo orale e per la
sensibilizzazione del paziente e dei familiari nei confronti della prevenzione odontoiatrica, e figure specialistiche quali l’otorino, il fisiatra, l’auxologo e l’endocrinologo.
Mappaggio fine di un QTL principale per la resa in granella sul cromosoma 3B di frumento duro
Fine mapping of a major QTL for grain yield on chromosome 3B of durum wheat
Creators: name: Graziani, Marta <1983>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2012
Subjects: AGR/07 Genetica agraria

description: In durum wheat, two major QTL for grain yield (Qyld.idw-2B and Qyld.idw-3B) and related traits were identified in a recombinant population derived from Kofa and Svevo (Maccaferri et al. 2008). To further investigate the genetic and physiological basis of allelic variation for this important trait, the fine mapping of Qyld.idw-2B e Qyld.idw-3B was done during the PhD. 
In this regard, new molecular markers were added to increase the map resolution in the target interval.
For Qyld.idw-2B  region COS markers derived from the synteny between wheat and rice/ sorghum /brachypodiu genomes  were screened. While for Qyld.idw-3B  region SSR, ISBP and COS markers obtained from BAC end-sequences and BAC sequences generated during the construction of the 3B physical map (Paux et al., 2008) were screened. 
In the RIL population a final map resolution  of 2,8 markers/cM for Qyld.idw-2B and 0,6 markers/cM  for Qyld.idw-3B were obtained. 
Eighteen pairs of near-isogenic lines (NILs) for Qyld.idw-3B were obtained from F4:5 heterogeneous inbred families. In order to confirm the phenotypic effect of the QTL all pairs were evaluated in field trials (2010 and 2011) for all traits. Three pairs of NILs, with contrasted haplotypes at the target region, were crossed to produce a large F2 population (ca. 7,500 plants in total) that was screened for the identification of recombinants. A total of 233 homozygous F4:5 segmental isolines were obtained and the phenotypic and genotypic characterization of these materials were done. 
A fine mapping for Qyld.idw-3B was obtained and the QTL peak was identified in a interval of 0,4 cM. 
All markers were anchored to the Chinese Spring physical map of chr. 3B, which allowed us to identify the BAC Contigs spanning the QTL region and to assign the QTL peak to Contig 954. Sequencing of this contig has revealed the presence of 42 genes.
title: Museumising sovereignty: when you want a nation, make a museum
Creators: name: Haxhiu, Andi
Publisher: name: The University of Edinburgh
Year: 2025
Subjects: subject: museum
subject: Nationalism
subject: Scotland
subject: Britain
subject: sovereignty
subject: nation

description: Shortly after the opening of the Museum of Scotland and the ‘reconvening’ of the Scottish Parliament, Donald Dewar (2000: xiii) remarked that Scotland was at a critical juncture where the future interplay between “these two key institutions will help to shape both cultural identity and [Scotland’s] constitutional destiny in the next millennium.” Precisely twenty-six years after the opening of the museum, Scotland has significantly changed as demands for more decision-making powers have simultaneously intensified within this timespan. Building upon these sociopolitical developments, this doctoral research investigates how competing visions of sovereignty and nationalism are museumised in the Scotland Galleries of the National Museum of Scotland. Furthermore, by focusing on the museum’s text panels and labels, this research explores the extent to which the museum storyline in the Scotland Galleries is influenced or shaped by the debates on Scottishness and Britishness outside the museum walls. Specifically, by introducing museumising sovereignty as a conceptual lens, this dissertation thoroughly analyses how these central events – the Wars of Independence, the Union of 1707, and Devolution in 1997 – are emplotted in the museum storyline as a response to the political and cultural requirements of the present. Ultimately, by addressing the specifics of Scotland’s sociological history, this doctoral research adds to the wider discourse surrounding museum studies and evaluates their institutional role in museumising and negotiating perceptions of nationness.
MOND orbits in the Oort cloud
Creators: name: Iorio, Lorenzo
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: We numerically investigate the features of typical orbits occurring in the Oort cloud (r\approx 50-150 kAU) in the low-acceleration regime of the MOdified Newtonian Dynamics (MOND). We take into account the so-called External Field Effect (EFE) because the solar system is embedded in the Milky Way. In the framework of MOND this does matter since the gravitational acceleration of Galactic origin felt by the solar system is of the same order of magnitude of the characteristic MOND acceleration scale A_0\approx 10^-10 m s^-2. We use three different forms of the MOND interpolating function μ(x) and two different values for the Galactic field at the Sun's location. We find that MOND produces highly distorted trajectories with respect to the Newtonian case, especially for very eccentric orbits. It turns out that the shape of the MOND orbits strongly depend on the initial conditions. For particular initial state vectors, the MOND paths in the ecliptic plane get shrunk extending over much smaller spatial regions than in the Newtonian case, and experience high frequency variations over one Keplerian orbital period. Ecliptic orbits with different initial conditions and nearly polar orbits are quite different getting distorted as well, but they occupy more extended spatial regions. This facts may have consequences on the composition and the dynamical history of the Oort cloud which are difficult to predict.
description: LaTex, 28 pages, no tables, 22 figures, 36 references. To appear in The Open Astronomy Journal (TOAJ)
Studies on the mechanisms of branchial calcium transport in teleost fish, with special reference to a calcium-stimulated ATPase in the gill plasma membranes
Creators: name: Ma, Stephanie W. Y.
Publisher: name: University of British Columbia
Year: 2010

description: Although mechanisms of calcium regulation in teleost fish are still poorly understood, there is indirect evidence that environmental Ca²⁺ may be involved. The gill, being the respiratory organ where blood comes into intimate contact with the external water, is likely to be a major site for ion transport. The objective of this project was to study the mechanisms of calcium transport in teleost fish, with special reference to branchial calcium-uptake, properties of a gill Ca²⁺-ATPase and the possible role of two calcium-active hormones, calcitonin from the ultimobranchial glands and the active principle(s) of the corpuscles of Stannius. A method was developed to measure Ca²⁺ transport across the isolated and perfused gill of the American eel, Anguilla rostrata. This preparation demonstrated a net Ca²⁺-uptake across the gill epithelium against a chemical and electrical gradient. This uptake was inhibited by 2,4 dinitrophenol, suggesting active transport. The branchial Ca²⁺ transport system was sensitive to changes in environmental temperature, internal and external Ca²⁺ concentrations and pH. Ca²⁺-uptake was stimulated by salmon calcitonin, but inhibited by extracts of the corpuscles of Stannius. A Ca²⁺-stimulated ATPase, independent of Na⁺ and K⁺ and insensitive to ouabain, was identified in the gill plasma membranes of the American eel. The enzyme was also stimulated by Mg²⁺, but the V[sub max] and affinity of the enzyme were higher for Ca²⁺ than for Mg²⁺. Ca²⁺ and Mg²⁺ were found to act on the same site. ATP was the preferential substrate for the enzyme. The pH optimum for enzyme activation was 7.9-8.1. Salmon calcitonin had no effect on the Ca²⁺-ATPase activity, however, the enzyme activity was markedly inhibited by extracts of the Stannius corpuscles. The existence of a similar Ca²⁺-ATPase was demonstrated in the gill plasma membranes of a variety of teleost fish from both freshwater and marine habitats. The gill Ca²⁺-ATPase activity was not altered by sea water adaptation or by starvation, but was significantly elevated during sexual maturation and spawning. This series of studies has revealed the existence of an active branchial calcium uptake system in the fresh- water teleost, possibly mediated via a membrane-bound Ca²⁺-ATPase. Calcitonin and the corpuscles of Stannius "factor" were demonstrated to play a regulatory role in this Ca²⁺ transport system, suggesting the gill as an important site of hormonal action in teleostean calcium homeostasis.
Interaction between organic matter and tree cover in silvopastoral systems established in Galicia under Pinus radiata D. Don - Interacción entre la materia orgánica y la cubierta arbórea en sistemas silvopastorales establecidos en Galicia bajo Pinus radiata D. Don
Creators: name: Rodríguez-Rigueiro, Francisco Javier
name: Mosquera-Losada, María Rosa
name: Rigueiro-Rodríguez, Antonio
name: Ferreiro-Domínguez, Nuria
Publisher: name: Zenodo
Year: 2019
Subjects: whitewashed
Soil
carbon

description: La proporción de materia orgánica en el suelo se ve directamente influenciada por la cobertura del arbolado debido a la ausencia de luz en las capas inferiores del sistema, afectando así a la tasa de mineralización y modificando en consecuencia la composición del sotobosque al agregarse, además, un material acidificante al suelo como son las acículas caídas. Por todo lo anterior, tratamientos culturales como la poda se convierten en recomendables con objeto de facilitar la incorporación de la materia orgánica al suelo.
Two-component density functional theory for muonic molecules: Inclusion of the electron-positive muon correlation functional
Creators: name: Goli, Mohammad
name: Shahbazian, Shant
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: FOS: Physical sciences

description: It is well-known experimentally that the positively-charged muon and the muonium atom may bind to molecules and solids, and through muon$'$s magnetic interaction with unpaired electrons, valuable information on the local environment surrounding the muon is deduced. Theoretical understanding of the structure and properties of resulting muonic species requires accurate and efficient quantum mechanical computational methodologies. In this paper the two-component density functional theory, TC-DFT, as a first principles method, which treats electrons and the positive muon on an equal footing as quantum particles, is introduced and implemented computationally. The main ingredient of this theory, apart from the electronic exchange-correlation functional, is the electron-positive muon correlation functional which is foreign to the purely electronic DFT. A Wigner-type local electron-positive muon correlation functional, termed e$μ$c-1, is proposed in this paper and its capability is demonstrated through its computational application to a benchmark set of muonic organic molecules. The TC-DFT equations containing e$μ$c-1 are not only capable of predicting the muon$'$s binding site correctly but they also reproduce muon$'$s zero-point vibrational energies and the muonic densities much more accurately than the TC-DFT equations lacking e$μ$c-1. Thus, this study set the stage for developing accurate electron-positive muon functionals, which can be used within the context of the TC-DFT to elucidate the intricate interaction of the positive muon with complex molecular systems.
description: Supplementary material included
An index theorem in differential K-theory
Creators: name: Freed, Daniel S.
name: Lott, John
Publisher: name: arXiv
Year: 2009
Subjects: subject: Differential Geometry (math.DG)
subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Topology (math.AT)
subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 58J22; 19K56; 19L99

description: Let X --> B be a proper submersion with a Riemannian structure. Given a differential K-theory class on X, we define its analytic and topological indices as differential K-theory classes on B. We prove that the two indices are the same.
description: 65 pages; version 2 has small changes for publication
Advances in methods to detect, isolate and quantify foodborne pathogens
Creators: name: Baranzoni, Gian Marco <1985>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2014
Subjects: VET/04 Ispezione degli alimenti di origine animale

description: Foodborne diseases impact human health and economies worldwide in terms of health care and productivity loss. Prevention is necessary and methods to detect, isolate and quantify foodborne pathogens play a fundamental role, changing continuously to face microorganisms and food production evolution.
Official methods are mainly based on microorganisms growth in different media and their isolation on selective agars followed by confirmation of presumptive colonies through biochemical and serological test. A complete identification requires form 7 to 10 days.
Over the last decades, new molecular techniques based on antibodies and nucleic acids allow a more accurate typing and a faster detection and quantification. The present thesis aims to apply molecular techniques to improve official methods performances regarding two pathogens: Shiga-like Toxin-producing Escherichia coli (STEC) and Listeria monocytogenes.
In 2011, a new strain of STEC belonging to the serogroup O104 provoked a large outbreak. Therefore, the development of a method to detect and isolate STEC O104 is demanded.
The first objective of this work is the detection, isolation and identification of STEC O104 in sprouts artificially contaminated. Multiplex PCR assays and antibodies anti-O104 incorporated in reagents for immunomagnetic separation and latex agglutination were employed. Contamination levels of less than 1 CFU/g were detected. Multiplex PCR assays permitted a rapid screening of enriched food samples and identification of isolated colonies. Immunomagnetic separation and latex agglutination allowed a high sensitivity and rapid identification of O104 antigen, respectively.
The development of a rapid method to detect and quantify Listeria monocytogenes, a high-risk pathogen, is the second objective. Detection of 1 CFU/ml and quantification of 10–1,000 CFU/ml in raw milk were achieved by a sample pretreatment step and quantitative PCR in about 3h. L. monocytogenes growth in raw milk was also evaluated.
Shear shock formation in incompressible viscoelastic solids
Creators: name: Berjamin, Harold
name: Senthilnathan, Chockalingam
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 74D99, 74J30, 74J40

description: Experiments have shown that shear waves induced in brain tissue can develop into shock waves, thus providing a possible explanation of deep traumatic brain injuries. Here, we study the formation of shock waves in soft viscoelastic solids subject to an imposed velocity at their boundary. We consider the plane shearing motion of a semi-infinite half-space, which corresponds to a spatially one-dimensional problem. Incompressible soft solids whose behaviour is described by the Fung-Simo quasi-linear viscoelasticy theory (QLV) are considered, where the elastic response is either exponential or polynomial of Mooney-Rivlin-Yeoh type. Waveform breaking can occur at the blow-up of acceleration waves, leading to one sufficient condition for the formation of shocks. A slow scale analysis based on a small amplitude parameter yields a damped Burgers-like equation, thus leading to another shock formation condition. Numerical experiments performed using a dedicated finite volume scheme show that these estimates have limited accuracy. Their validity is restricted in the elastic limit too, where exact shock formation conditions are known.