cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Asteroseismology of luminous red giants with Kepler. II. Dependence of mass loss on pulsations and radiation
Creators: name: Yu, Jie
name: Hekker, Saskia
name: Bedding, Timothy R.
name: Stello, Dennis
name: Huber, Daniel
name: Gizon, Laurent
name: Khanna, Shourya
name: Bi, Shaolan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Mass loss by red giants is an important process to understand the final stages of stellar evolution and the chemical enrichment of the interstellar medium. Mass-loss rates are thought to be controlled by pulsation-enhanced dust-driven outflows. Here we investigate the relationships between mass loss, pulsations, and radiation, using 3213 luminous Kepler red giants and 135000 ASAS-SN semiregulars and Miras. Mass-loss rates are traced by infrared colours using 2MASS and WISE and by observed-to-model WISE fluxes, and are also estimated using dust mass-loss rates from literature assuming a typical gas-to-dust mass ratio of 400. To specify the pulsations, we extract the period and height of the highest peak in the power spectrum of oscillation. Absolute magnitudes are obtained from the 2MASS Ks band and the Gaia DR2 parallaxes. Our results follow. (i) Substantial mass loss sets in at pulsation periods above ~60 and ~100 days, corresponding to Asymptotic-Giant-Branch stars at the base of the period-luminosity sequences C' and C. (ii) The mass-loss rate starts to rapidly increase in semiregulars for which the luminosity is just above the Red-Giant-Branch tip and gradually plateaus to a level similar to that of Miras. (iii) The mass-loss rates in Miras do not depend on luminosity, consistent with pulsation-enhanced dust-driven winds. (iv) The accumulated mass loss on the Red Giant Branch consistent with asteroseismic predictions reduces the masses of red-clump stars by 6.3%, less than the typical uncertainty on their asteroseismic masses. Thus mass loss is currently not a limitation of stellar age estimates for galactic archaeology studies.
description: 14 pages, 12 figures, accepted for publication in MNRAS
Moving solitons in the discrete nonlinear Schrödinger equation
Creators: name: Oxtoby, O. F.
name: Barashenkov, I. V.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: Using the method of asymptotics beyond all orders, we evaluate the amplitude of radiation from a moving small-amplitude soliton in the discrete nonlinear Schrödinger equation. When the nonlinearity is of the cubic type, this amplitude is shown to be nonzero for all velocities and therefore small-amplitude solitons moving without emitting radiation do not exist. In the case of a saturable nonlinearity, on the other hand, the radiation is found to be completely suppressed when the soliton moves at one of certain isolated `sliding velocities'. We show that a discrete soliton moving at a general speed will experience radiative deceleration until it either stops and remains pinned to the lattice, or--in the saturable case--locks, metastably, onto one of the sliding velocities. When the soliton's amplitude is small, however, this deceleration is extremely slow; hence, despite losing energy to radiation, the discrete soliton may spend an exponentially long time travelling with virtually unchanged amplitude and speed.
description: 19 pages, 7 figures; spelling errors corrected
Clover - A B-mode polarization experiment
Creators: name: Taylor, Angela C.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Clover is a new instrument being built to detect the B-mode polarization of the CMB. It consists of three telescopes operating at 97, 150, and 220 GHz and will be sited in Chile at the Llano de Chajnantor. Each telescope assembly is scaled to give a constant beam size of 8 arcmin and feeds an array of between 320 and 512 finline-coupled TES bolometers. Here we describe the design, current status and scientific prospects of the instrument.
description: 11 pages, 6 figures. Proceedings of the Fundamental Physics With CMB workshop, UC Irvine, March 23-25, 2006, to be published in New Astronomy Reviews
On the Linear Stability of Weakly-Ionized, Magnetized Planar Shear Flows
Creators: name: Kunz, Matthew W.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate the effects of ambipolar diffusion and the Hall effect on the stability of weakly-ionized, magnetized planar shear flows. Employing a local approach similar to the shearing-sheet approximation, we solve for the evolution of linear perturbations in both streamwise-symmetric and non-streamwise-symmetric geometries using WKB techniques and/or numerical methods. We find that instability arises from the combination of shear and non-ideal magnetohydrodynamic processes, and is a result of the ability of these processes to influence the free energy path between the perturbations and the shear. They turn what would be simple linear-in-time growth due to current and vortex stretching from shear into exponentially-growing instabilities. Our results aid in understanding previous work on the behaviour of weakly-ionized accretion discs. In particular, the recent finding that the Hall effect and ambipolar diffusion destabilize both positive and negative angular velocity gradients acquires a natural explanation in the more general context of this paper. We construct a simple toy model for these instabilities based upon transformation operators (shears, rotations, and projections) that captures both their qualitative and, in certain cases, exact quantitative behaviour.
description: 18 pages, 8 figures; accepted by MNRAS
Εφαρμογή της τεχνικής των Rapds για τη διερεύνηση της γενετικήςδ ομής και της ταυτοποίησης πληθυσμών της άγριας πέστροφας (Salmon Trutta):
Creators: name: Γκέλια, Δήμητρα Κωνσταντίνου
Publisher: name: Aristotle University of Thessaloniki
Year: 2008
Subjects: Αγρια πέστροφα
Τυχαία ενισχυμένα πολυμορφικά τμήματα DNA
Γενετική ποικιλότητα
Πληθυσμιακή γενετική
Βαλκανική χερσόνησος
Brown trait
Random amplified polymorphic dna (rapd)
Balkan peninsula
Genetic differentiation diversity
Bottleneck phenomena

description: Αντικείμενο της παρούσας εργασίας ήταν η χρήση της τεχνικής των Τυχαία Ενισχυμένων Πολυμορφικών Τμημάτων DNA (Random Amplified Polymorphic DNA) για τον προσδιορισμό της γενετικής ποικιλομορφίας και των φυλογενετικών σχέσεων μεταξύ πληθυσμών της Salmo trutta που απαντώνται στην Βαλκανική χερσόνησο. Μετά από ένα προκαταρκτικό έλεγχο, κάνοντας εφαρμογή της RAPD ανάλυσης σε αντιπροσωπευτικό αριθμό ατόμων από κάθε πληθυσμό, έγινε επιλογή πέντε εκκινητών και εφαρμόστικαν σε συνολικά 140 άτομα από εφτά πληθυσμούς. Το ποσοστό των πολυμορφικών ζωνών που δημιουργήθηκαν ήταν πολύ υψηλό (90,91%). Η στατιστική ανάλυση έδειξε ότι η γενετική διαφοροποίηση μέσα στους πληθυσμούς είναι χαμηλή (μέσο ποσοστό πολυμορφικών ζωνών (Ρ), 11,69%, και δείκτης γενετικής ποικιλότητας (Nei), 0,035), σε αντίθεση με την αντίστοιχη μεταξύ των πληθυσμών (FST=0,89). Η κατανομή της γενετικής ποικιλότητας μεταξύ των πληθυσμών της άγριας πέστροφας στα Βαλκάνια ενδεχομένως να οφείλεται στην εξελικτική ιστορία της, ενώ η γονιδιακή παρέκκλιση μέσα στο είδος πιθανόν να σχετίζεται με φαινόμενα στενωπού. Οι πληθυσμοί που μελετήθηκαν αποτελούν μοναδικά γενετικά αποθέματα και υποδηλώνουν την ανάγκη για ιδιαίτερες τακτικές διαχείρισης και διατήρησής τους. Η τεχνική των RAPDs αποδεικνύεται ικανός δείκτης για την ανίχνευση γενετικής ποικιλότητας, και πολύτιμο εργαλείο για τη γρήγορη και αξιόπιστη διάκριση των πληθυσμών σε προγράμματα διατήρησης.
description: The aim of this study was the use of random amplified polymorphic DNA (RAPD) markers to assess the genetic variation and phylogenetic relationships among brown trout (Salmo trutta) populations that came from Balkan peninsula. After a preliminary screening for intraspecific diversity, five oligodecamer primers were selected to amplify DNA from total 140 fish from seven populations. The polymorphic loci proportion was high (90,91%). Statistical analysis show that genetic diversity within populations was low (with an average percentage of polymorphic bands (P) of 11,69% and a Nei’s genetic index (h) of 0.035), while the genetic differentiation between populations was very high (FST=0,89). The distribution of genetic diversity among Balkan trout may result from their evolutionary history and reflects genetic drift coupled with bottleneck phenomena. This study reveal that Balkan populations are unique genetic reserve and so it is urgent the reception of conservation measures. RAPD technique proved an efficient marker in discrimination of genetic variability, and a valuable tool for quick and reliable stock discrimination that could be used for routine genetic monitoring in case of an integrated conservation scheme.
Immobilization of growth factors using cellulose binding domain-cytokine fusion proteins
Creators: name: Jervis, Eric J.
Publisher: name: University of British Columbia
Year: 2009

description: This study describes the application and characterization of cellulose binding domain (CBD)- cytokine fusion proteins for the cultivation of cytokine dependent cells. The affinity, binding reversibility and surface diffusivity of type-U CBDs are analyzed. Binding of CBDs to crystalline cellulose is irreversible with respect to protein dilution in the solution phase. The surface diffusion rates of an exo-β-l-4-glycanase (Cex), an endo- β -l-4-glucanase (CenA), and their respective isolated CBDs, are quantified using fluorescence recovery after photobleaching analysis. Greater than 70% of bound molecules are mobile on the cellulose surface (Dsurf ~ 3 x 10 ⁻¹¹ cm² /sec). Surface diffusion rates are dependent on surface coverage density and temperature ( Ea ~ 45 kJ/mol.K). These attributes of the C B D suggest that C B D fusion proteins are not simply immobilized on the cellulose surface, but rather localized at it, so as to retain 2- dimensional mobility. Localization of cytokines to cellulose via a C B D affinity tag, provides a convenient method for adsorbing growth factors to a solid phase (cellulose) in a surface-active form. Bioactivity and long term stability of CBD-cytokine adsorption to microcrystalline cellulose under cell culture conditions is demonstrated. Cellulose-bound fusion proteins of murine stem cell factor with CBDcex (CBD-SCF), murine interleukin-3 with CBDCenA (CBD-IL3) and murine interleukin-2 with CBDcenA (CBD-IL2), stimulate the proliferation of their respective factor dependent cells. Cellulose localization of CBD-SCF results in a significant increase in the persistence of tyrosine activation of the SCF receptor. Furthermore, when cells are incubated with cellulose-bound CBD-SCF, activated receptors and CBD-SCF co-localize at the cellulose surface. In contrast to the surface diffusion of CBDC ex, CBD-SCF does not diffuse on crystalline cellulose. This is likely a result of the formation of CBD-SCF dimers (through SCF domain dimerization) at the cellulose interface.
Twist-3 Formalism for Single Transverse Spin Asymmetry Reexamined: Semi-Inclusive Deep Inelastic Scattering
Creators: name: Eguchi, Hisato
name: Koike, Yuji
name: Tanaka, Kazuhiro
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the single spin asymmetry (SSA) for the pion production in semi-inclusive deep inelastic scattering, $ep^\uparrow\to eπX$, in the framework of the collinear factorization. We derive the complete cross section formula associated with the twist-3 quark-gluon correlation functions for the transversely polarized nucleon, including all types of pole (hard-pole, soft-fermion-pole and soft-gluon-pole) contributions which produce the strong interaction phase necessary for SSA. We prove that the partonic hard part from each pole contribution satisfies certain constraints from Ward identities for color gauge invariance. We demonstrate that the use of these new constraints is crucial to reorganize the collinear expansion of the Feynman diagrams into manifestly gauge-invariant form so as to obtain the factorization formula for the cross section in terms of a complete set of the twist-3 distributions without any double counting. It also provides a simpler method for the actual calculation. We also present a simple estimate of SSA based on our cross section formula, using a model for the ``soft-gluon-pole function'' that represents the relevant twist-3 quark-gluon correlation, and compare the magnitude of the terms involving the derivative of the soft-gluon-pole function with that of the ``non-derivative'' terms.
description: 38 pages, 11 figures. Final version, to appear in Nucl. Phys. B
FUV and X-ray absorption in the Warm-Hot Intergalactic Medium
Creators: name: Richter, P.
name: Paerels, F. B. S.
name: Kaastra, J. S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The Warm-Hot Intergalactic Medium (WHIM) arises from shock-heated gas collapsing in large-scale filaments and probably harbours a substantial fraction of the baryons in the local Universe. Absorption-line measurements in the ultraviolet (UV) and in the X-ray band currently represent the best method to study the WHIM at low redshifts. We here describe the physical properties of the WHIM and the concepts behind WHIM absorption line measurements of H I and high ions such as O VI, O VII, and O VIII in the far-ultraviolet and X-ray band. We review results of recent WHIM absorption line studies carried out with UV and X-ray satellites such as FUSE, HST, Chandra, and XMM-Newton and discuss their implications for our knowledge of the WHIM.
description: 26 pages, 9 figures, accepted for publication in Space Science Reviews, special issue "Clusters of galaxies: beyond the thermal view", Editor J.S. Kaastra, Chapter 3; work done by an international team at the International Space Science Institute (ISSI), Bern, organised by J.S. Kaastra, A.M. Bykov, S. Schindler & J.A.M. Bleeker
Η ποινική προστασία της πνευματικής ιδιοκτησίας και των συγγενικών δικαιωμάτων στην ελληνική έννομη τάξη (Ν. 2121/1993):
Creators: name: Τζούμα, Αικατερίνη Μιχαήλ
Publisher: name: Aristotle University of Thessaloniki
Year: 2009
Subjects: Ποινικό δίκαιο
Πνευματική ιδιοκτησία
Συγγενικά δικαιώματα
Προστασία
Δημιουργός
Ν. 2121.1993
Penal law
Copyright
Related rights
Protection
Creator
Act 2121/1993

description: Η Ελλάδα είναι μέλος των πιο σημαντικών διεθνών συμβάσεων για την προστασία της πνευματικής ιδιοκτησίας και των συγγενικών δικαιωμάτων, όπως η Διεθνής Σύμβαση της Βέρνης, η Διεθνής Σύμβαση της Ρώμης, η Συμφωνία TRIPS του Παγκόσμιου Οργανισμού Εμπορίου, οι Συνθήκες WIPO του Παγκόσμιου Οργανισμού Διανοητικής Ιδιοκτησίας κλπ.Επιπλέον, ως κράτος μέλος της Ευρωπαϊκής Ένωσης, η Ελλάδα έχει μεταφέρει όλες τις σχετικές Κοινοτικές Οδηγίες στο εσωτερικό της δίκαιο.Το ελληνικό δίκαιο πνευματικής ιδιοκτησίας παρέχει στους δημιουργούς αποκλειστικά περιουσιακά και ηθικά δικαιώματα επί των έργων του λόγου, της τέχνης και της επιστήμης και τους δίνει το δικαίωμα να απαγορεύουν ή να επιτρέπουν συγκεκριμένες πράξεις επί των έργων τους, όπως η μετάφραση και η διασκευή, η διανομή αντιτύπων, η δημόσια εκτέλεση, η παρουσίαση στο κοινό κ.αλ.Τα συγγενικά δικαιώματα από την άλλη πλευρά, προστατεύουν τους ερμηνευτές ή εκτελεστές καλλιτέχνες, τους παραγωγούς φωνογραφημάτων και οπτικοακουστικών έργων και τους ραδιοτηλεοπτικούς οργανισμούς. Οι ποινικές κυρώσεις τιμωρούν την προσβολή των δικαιωμάτων και των δύο κατηγοριών και στοχεύουν στη γενική και ειδική πρόληψη.
description: Greece is a member of the most important international treaties concerning copyright’s and related rights protection, such as the Berne Convention, the Rome Convention, the World Trade Organization’s TRIPS agreement, the WIPO Treaties e.tc. Furthermore, as a member state of the European Union, Greece has transposed all relevant Directives into the national legislation.Greek copyright law, also known in most European languages as author’s rights law, provides creators with exclusive property and moral rights over their literary, artistic and scientific works and gives them the right to prohibit or authorize certain acts in relation to their works, like translation and adaptation, distribution of copies, public performance, broadcasting, making available to the public etc. Related rights law on the other hand, also known as neighboring rights law, protects the performers, the producers of phonograms and films and the broadcasting organizations. Criminal sanctions are intended to punish violations of both categories of rights, as well as to deter further infringement.
Universal behavior of the electron g-factor in GaAs/AlGaAs quantum wells
Creators: name: Yugova, I. A.
name: Greilich, A.
name: Yakovlev, D. R.
name: Kiselev, A. A.
name: Bayer, M.
name: Petrov, V. V.
name: Dolgikh, Yu. K.
name: Reuter, D.
name: Wieck, A. D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The Zeeman splitting and the underlying value of the g-factor for conduction band electrons in GaAs/Al_xGa_{1-x}As quantum wells have been measured by spin-beat spectroscopy based on a time-resolved Kerr rotation technique. The experimental data are in good agreement with theoretical predictions. The model accurately accounts for the large electron energies above the GaAs conduction band bottom, resulting from the strong quantum confinement. In the tracked range of optical transition energies E from 1.52 to 2.0eV, the electron g-factor along the growth axis follows closely the universal dependence g_||(E)= -0.445 + 3.38(E-1.519)-2.21(E-1.519)^2 (with E measured in eV); and this universality also embraces Al_xGa_{1-x}As alloys. The in-plane g-factor component deviates notably from the universal curve, with the degree of deviation controlled by the structural anisotropy.
description: 8 pages, 6 figures
Soft X-ray and extreme ultraviolet excess emission from clusters of galaxies
Creators: name: Durret, F.
name: Kaastra, J. S.
name: Nevalainen, J.
name: Ohashi, T.
name: Werner, N.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: An excess over the extrapolation to the extreme ultraviolet and soft X-ray ranges of the thermal emission from the hot intracluster medium has been detected in a number of clusters of galaxies. We briefly present each of the satellites (EUVE, ROSAT PSPC and BeppoSAX, and presently XMM-Newton, Chandra and Suzaku) and their corresponding instrumental issues, which are responsible for the fact that this soft excess remains controversial in a number of cases. We then review the evidence for this soft X-ray excess and discuss the possible mechanisms (thermal and non-thermal) which could be responsible for this emission.
description: 21 pages, 5 figures, accepted for publication in Space Science Reviews, special issue "Clusters of galaxies: beyond the thermal view", Editor J.S. Kaastra, Chapter 4; work done by an international team at the International Space Science Institute (ISSI), Bern, organised by J.S. Kaastra, A.M.Bykov, S. Schindler & J.A.M. Bleeker
Mixed labyrinth fractals
Creators: name: Cristea, Ligia L.
name: Steinsky, Bertran
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Topology (math.GN)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 14Q05, 26B05, 28A75, 28A80, 51M25, 52A38

description: Labyrinth fractals are self-similar fractals that were introduced and studied in recent work by Cristea and Steinsky. In the present paper we define and study more general objects, called mixed labyrinth fractals, that are in general not self-similar and are constructed by using sequences of labyrinth patterns. We show that mixed labyrinth fractals are dendrites and study properties of the paths in the graphs associated to prefractals, and of arcs in the fractal, e.g., the path length and the box counting dimension and length of arcs. We also consider more general objects related to mixed labyrinth fractals, formulate two conjectures about arc lengths, and establish connections to recent results on generalised Sierpinski carpets.
description: 14 pages, 13 figures. arXiv admin note: text overlap with arXiv:1802.05461, arXiv:1810.06969
Statistical Scattering of Waves in Disordered Waveguides: from Microscopic Potentials to Limiting Macroscopic Statistics
Creators: name: Froufe-Perez, L. S.
name: Yepez, M.
name: Mello, P. A.
name: Saenz, J. J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We study the statistical properties of wave scattering in a disordered waveguide. The statistical properties of a "building block" of length (delta)L are derived from a potential model and used to find the evolution with length of the expectation value of physical quantities. In the potential model the scattering units consist of thin potential slices, idealized as delta slices, perpendicular to the longitudinal direction of the waveguide; the variation of the potential in the transverse direction may be arbitrary. The sets of parameters defining a given slice are taken to be statistically independent from those of any other slice and identically distributed. In the dense-weak-scattering limit, in which the potential slices are very weak and their linear density is very large, so that the resulting mean free paths are fixed, the corresponding statistical properties of the full waveguide depend only on the mean free paths and on no other property of the slice distribution. The universality that arises demonstrates the existence of a generalized central-limit theorem. Our final result is a diffusion equation in the space of transfer matrices of our system, which describes the evolution with the length L of the disordered waveguide of the transport properties of interest. In contrast to earlier publications, in the present analysis the energy of the incident particle is fully taken into account.
description: 75 pages, 10 figures, submitted to Phys. Rev E
On the multiple q-Genocchi and Euler numbers
Creators: name: Kim, Taekyun
Publisher: name: arXiv
Year: 2008
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11B68, 11S80

description: The purpose of this paper is to present a systemic study of some families of multiple q-Genocchi and euler numbers by using multivariate q-Volkenborn integral. From the studies of those q-Genocchi numbers and polynomials of higher order we derive some interesting identities related to q-Genocchi numbers and polynomials of higher order.
description: 11 pages
On the orders of vanishing elements of finite groups
Creators: name: Madanha, Sesuai Y.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20c15

description: Let $ G$ be a finite group and $p$ be a prime. Let $ \mathrm{Vo}(G) $ denote the set of the orders of vanishing elements, $\mathrm{Vo}_{p} (G)$ be the subset of $ \mathrm{Vo}(G) $ consisting of those orders of vanishing elements divisible by $p$ and $\mathrm{Vo}_{p'} (G) $ be the subset of $ \mathrm{Vo}(G) $ consisting of those orders of vanishing elements not divisible by $p$. Dolfi, Pacifi, Sanus and Spiga proved that if $ a $ is not a $ p $-power for all $ a\in \mathrm{Vo}(G)$, then $ G $ has a normal Sylow $ p $-subgroup. In another article, the same authors also show that if if $ \mathrm{Vo}_{p'}(G) =\emptyset $, then $ G $ has a normal nilpotent $ p $-complement. These results are variations of the well known Ito-Michler and Thompson theorems. In this article we study solvable groups such that $|\mathrm{Vo}_{p}(G)| = 1 $ and show that $ P' $ is subnormal. This is analogous to the work of Isaacs, Moréto, Navarro and Tiep where they considered groups with just one character degree divisible by $ p $. We also study certain finite groups $G$ such that $|\mathrm{Vo}_{p'}(G)| = 1 $ and we prove that $ G $ has a normal subgroup $ L $ such that $ G/L $ a normal $ p $-complement and $ L $ has a normal $ p $-complement. This is analogous to the recent work of Giannelli, Rizo and Schaeffer Fry on character degrees with a few $p'$-character degrees. Bubboloni, Dolfi and Spiga studied finite groups such that every vanishing element is of order $ p^{m} $ for some integer $ m\geqslant 1 $. As a generalization, we investigate groups such that $ \gcd(a,b)=p^{m} $ for some integer $ m \geqslant 0 $, for all $ a,b\in \mathrm{Vo}(G) $. We also study finite solvable groups whose irreducible characters vanish only on elements of prime power order.
description: 14 pages. arXiv admin note: text overlap with arXiv:2006.11660
Forward dispersion relations and Roy equations in pi-pi scattering
Creators: name: Kaminski, R.
name: Pelaez, J. R.
name: Yndurain, F. J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We review results of an analysis of pipi interactions in S, P and D waves for two-pion effective mass from threshold to about 1.4 GeV. In particular we show a recent improvement of this analysis above the K anti-K threshold using more data for phase shifts and including the S0 wave inelasticity from pipi -> K anti-K. In addition, we have improved the fit to the f2(1270) resonance and used a more flexible P wave parametrization above the K anti-K threshold and included an estimation of the D2 wave inelasticity. The better accuracy thus achieved also required a refinement of the Regge analysis above 1.42 GeV. We have checked that the pipi scattering amplitudes obtained in this approach satisfy remarkably well forward dispersion relations and Roy's equations.
description: 6 pages, invited talk to the IV International Conference on Quarks and Nuclear Physics QNP06, Madrid 5th-10th June 2006
Lead compound similar to metabolite discovery using Tanimoto score
Creators: name: Raškevičius, Vytautas
name: Bordel, Sergio
name: Kairys, Visvaldas
Publisher: name: F1000Research
Year: 2015

description: As large databases of metabolites, drugs and other compounds become available, comparative search strategies could be useful for lead discovery. Here, we used a look-up strategy based on Tanimoto similarity score to compare different molecular structures in three databases (KEGG, DrugBank, ZINC) in order to find new possible active compounds. Probability to find a new active compound  with such strategy was estimated. The designed strategy was successfully applied to find a promising binder and a target.
Evaluation of Advanced Surveying Technology for Accident Investigation
Creators: name: Agent, Kenneth R.
name: Deacon, John A.
name: Pigman, Jerry G.
name: Stamatiadis, Nikiforos
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 1994
Subjects: subject: Transportation Engineering

description: The objective of this study was to evaluate the use of advanced surveying technology tor the investigation of traffic accidents.  The analysis shows that the investigation of traffic accidents using total station (survey) equipment provides a substantial improvement over the traditional coordinate procedure. The number of measurements obtained at an accident scene increased (by a factor of about two) when the total station equipment was used while the time required to collect the measurements decreased by about 33 percent with the man hours decreased by about one-halt. The increase in the number of measurements results in a more accurate and detailed investigation and accident diagram than typically obtained with the coordinate procedure. The use of computer plotting in the total station procedure results in a significant time savings when a detailed accident diagram is needed.  It is recommended that the use of total station equipment be continued and expanded.
Ο νεομάρτυρας Αγιος Ιωάννης ο εκ Τραπεζούντος:
Creators: name: Natu, Gheorghe
Publisher: name: Aristotle University of Thessaloniki
Year: 2008
Subjects: Νεομάρτυρας
Σουτσεάβα
Ασπρόκαστρο
Τραπεζούντα
Αλέξανδρος ο καλός
Μελέτιος Συρίγου
New Martyr
Suceava
Album castrum white castle
Trebizond
Alexander the good
Meletios syrigou

description: Η εργασία διαπραγματεύεται περί του βίου, του μαρτυρίου και της μετακομιδής των λειψάνων του Νεομάρτυρα Ιωάννου του εκ Τραπεζούντος. Αναλύονται στοιχεία σχετικά με την χειρόγραφη παράδοση του Βίου του Αγίου, τη λατρεία του, την χρονολόγησή του μαρτυρίου και της μεταφοράς των λειψάνων στη Μολδαβία, τη διάδοση της λατρείας του Αγίου στον ορθόδοξο κόσμο κλπ. Παρουσιάζονται οι τόποι λατρείας του αγίου στη Μολδαβία και εικονογραφικά έργα σχετικά με την ιστορία του βίου του και του θαυματουργικού έργου του Αγίου.
description: This research paper is about the life, the martyrdom and the trasportation of the relics of the new martyr John of Trebizond. Information about the written traditions of the Saint's life is studied in detail, his worship, the dating of his martyrdom and the transportation of his relicsto Moldavia, the spreading of his worship in the Orthodox World, etc. Sites of the Saint's worship in Moldavia are presented, as well as frescoes that have to do with the saint's life and his miraculous works.
Some aspects of the cosmological dynamics in Einstein-Gauss-Bonnet gravity
Creators: name: Chirkov, Dmitry
name: Pavluchenko, Sergey A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study some aspects of dynamical compactification scenario where stabilisation of extra dimensions occurs due to presence the Gauss-Bonnet term and non-zero spatial curvature. In the framework of the model under consideration there exists two-stages scenario of evolution of a Universe: on the first stage, the space evolves from a totally anisotropic state to the state with 3-dimensional (corresponding to our "real", world) expanding and $D$-dimensional contracting isotropic subspaces; on the second stage, constant curvature of extra dimensions begins to play role and provide compactification of extra dimensions. It is already known that such a scenario is realizable when constant curvature of extra dimensions is negative. Here we show that a range of coupling constants for which exponential solutions with 3-dimensional expanding and $D$-dimensional contracting isotropic subspaces are stable is located in a zone where compactification solutions with positively curved extra space are unstable, so that two-stage scenario analogous to the one described above is \emph{not} realizable. Also we study "nearly-Friedmann", regime for the case of arbitrary constant curvature of extra dimensions and describe new parametrization of the general solution for the model under consideration which provide elegant way of describing areas of existence over parameters space.
description: 14 pages, 2 figures
1994 Safety Belt Usage Survey and Evaluation of Effectiveness in Kentucky
Creators: name: Agent, Kenneth R.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 1994
Subjects: subject: Transportation Engineering

description: The objective of this study was to establish 1994 safety belt and child safety seat usage rates in Kentucky. The 1994 survey documents the results from enacting a statewide mandatory safety belt law. Data were collected at 100 sites and combined based on vehicle miles travelled for a given type of highway, rural or urban location, and county population category. Also included in this report is an analysis of accident records evaluating the effectiveness of safety belts.  The data show that enactment of the statewide law had a dramatic effect on usage rates. The usage rate for drivers increased from 42 percent in 1993 to 58 percent in 1994. While the usage rate for drivers had increased for the past several years, the amount of the increase was decreasing prior to enactment of the statewide law.  The statewide usage rate for children under the age of four was determined to be 72 percent. This represents an increase from the 61 percent usage determined in the 1993 survey.  Benefits in the reduction of injuries for occupants involved in police-reported accidents wearing a safety belt or in a safety seat were shown through the analysis of accident records. For example, a 56 percent reduction in fatal or incapacitating injuries was determined for drivers wearing a safety belt compared to those who were not restrained.
Delayed-choice test of complementarity with single photons
Creators: name: Jacques, Vincent
name: Wu, E.
name: Grosshans, Frédéric
name: Treussart, François
name: Grangier, Philippe
name: Aspect, Alain
name: Roch, Jean-François
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We report an experimental test of complementarity using clock-triggered single-photon pulses emitted by an individual N-V color center in a diamond nanocrystal. The single photons are sent into a Mach-Zehnder interferometer with an output beamsplitter of adjustable reflection coefficient R. In addition, the choice of introducing or removing this beamsplitter is random and relativistically space-like separated from the entering of the photon inside the interferometer, as required for the Wheeler's delayed-choice regime. Each set value of R allows us to observe interference with visibility V and to obtain incomplete which-path information characterized by the distinguishability D. The measured values of V and D are found to obey the complementarity relation V^2 + D^2 =< 1.
Analysis of Motor Vehicle-Deer Accidents in Kentucky
Creators: name: Agent, Kenneth R.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 1994
Subjects: subject: Transportation Engineering

description: An analysis of motor vehicle-deer (deer) accidents for the five-year period of 1989 through 1993 was conducted. There was an average of about 2,800 deer accidents per year. This type of accident was generally not severe with almost 96 percent property-damage-only accidents. Trends were noted in time and date of the accidents. The highest percentage of deer accidents occurred between 6 and 10 pm and in November and December. The percentage of this type of accident was highest in western and northern Kentucky and lowest in southeastern and central Kentucky. The accident rate for this type of accident was highest on rural parkways with about 22 percent of all accidents on this type of highway involving a collision with a deer.  A procedure was developed to identify locations having high numbers and rates of deer accidents. Lists of one mile sections, by highway classification, having the highest critical rate factors are presented.
title: Analysis of Traffic Accident Data in Kentucky
title: (1989-1993)
titleType: Subtitle
Creators: name: Agent, Kenneth R.
name: Pigman, Jerry G.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 1994
Subjects: subject: Transportation Engineering

description: This report includes an analysis of traffic accident data in Kentucky for the years of 1989-1993. A primary objective of this study was to determine average accident statistics for Kentucky highways. Average and critical numbers and rates of accidents were calculated for various types of highways in rural and urban areas. These data can be used in Kentucky's procedure to identify locations that have abnormal rates or numbers of accidents.  Another objective of this study was to provide data which can be used in the preparation of the problem identification portion of Kentucky's Annual Highway Safety Plan. County and city accident statistics were analyzed. A summary of results and recommendations in several problem identification areas is presented. These general areas include alcohol, occupant protection, speed, pedestrians, bicycles, motorcycles, trains, and vehicle defects. Other areas included in the analysis included drugs, school bus accidents, and truck accidents.
Transcription of a story about giving a dog to some hippies
Creators: name: Parker, Verdena
name: Newbold, Lindsey
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: hup

description: Audio file VP-050608-07: Transcription of a story about giving a dog to some hippies, file VP-300307-12, from 2:29 to the end of the story.
Imprecise Markov chains and their limit behaviour
Creators: name: de Cooman, Gert
name: Hermans, Filip
name: Quaeghebeur, Erik
Publisher: name: arXiv
Year: 2008
Subjects: subject: Probability (math.PR)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 60J10, 93B35, 47H09, 47N30

description: When the initial and transition probabilities of a finite Markov chain in discrete time are not well known, we should perform a sensitivity analysis. This can be done by considering as basic uncertainty models the so-called credal sets that these probabilities are known or believed to belong to, and by allowing the probabilities to vary over such sets. This leads to the definition of an imprecise Markov chain. We show that the time evolution of such a system can be studied very efficiently using so-called lower and upper expectations, which are equivalent mathematical representations of credal sets. We also study how the inferred credal set about the state at time n evolves as n goes to infinity: under quite unrestrictive conditions, it converges to a uniquely invariant credal set, regardless of the credal set given for the initial state. This leads to a non-trivial generalisation of the classical Perron-Frobenius Theorem to imprecise Markov chains.
description: v1: 28 pages, 8 figures; v2: 31 pages, 9 figures, major revision after review: added, modified, and removed material (no results dropped, results added), moved proofs to an appendix
Minutes of meeting of the Trustees of the Winfield & Okanagan Centre Irrigation District, December 9, 1947
Creators: name: Trustees Of The Winfield And Okanagan Centre Irrigation District
Publisher: name: The University of British Columbia
Year: 2017

description: Minutes of meeting of the Trustees of the Winfield & Okanagan Centre Irrigation District, dated December 9, 1947, regarding the Okanagan Centre Irrigation and Power Co.'s offer to sell the irrigation system.
Internal Structure of the Jets from Young Stars Simulated at Plasma Focus Facilities
Creators: name: Beskin, V. S.
name: Kalashnikov, I. Yu.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The laboratory simulations of jets from young stars that have been carried out for many years at plasma focus facilities allow the internal structure of the active regions emerging during the interaction of the jet with the surrounding plasma to be studied in detail. We have found a new wide class of solutions for the equations of ideal magnetohydrodynamics describing the closed axisymmetric stationary flows that are apparently realized in the active regions. Such flows are shown to well reproduce the internal structure of the plasma structures observed in laboratory simulations of astrophysical jets.
description: 10 pages, 6 figures, 1 table
The Shift, properties and recommendations for practical use
Creators: name: Bouleau, Nicolas
Publisher: name: arXiv
Year: 2006
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 65C20, 65C99

description: Because the stochastic calculus yields rarely random variables with laws defined by explicit closed formulas, probabilistic numerical computations are done most often by simulation. The simulation by the shift, whose field of application is as wide as that of Monte Carlo method, is particularly relevant when the simulations use, for each sample, a large number of calls to the random function. We give here the theoretical features, the implementation and the specific advantages of this method.
Additional file 6 of The characteristics of effective technology-enabled dementia education: a systematic review and mixed research synthesis
Creators: name: Muirhead, Kevin
name: Macaden, Leah
name: Smyth, Keith
name: Chandler, Colin
name: Clarke, Charlotte
name: Polson, Rob
name: O’Malley, Chris
Publisher: name: figshare
Year: 2022
Subjects: subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 6.
Risk of Population Extinction from Periodic and Abrupt Changes of Environment
Creators: name: Pekalski, Andrzej
name: Ausloos, Marcel
Publisher: name: arXiv
Year: 2008
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences

description: A simulation model of a population having internal (genetic) structure is presented. The population is subject to selection pressure coming from the environment which is the same in the whole system but changes in time. Reproduction has a sexual character with recombination and mutation. Two cases are considered - oscillatory changes of the environment and abrupt ones (catastrophes). We show how the survival chance of a population depends on maximum allowed size of the population, the length of the genotypes characterising individuals, selection pressure and the characteristics of the climate changes, either their period of oscillations or the scale of the abrupt shift.
description: 8 pages, 25 references, 10 figures; preliminary version to be submitted to Physica A
Multiple-chemical equilibria in chiral partition systems
Creators: name: Koska, Jurgen
Publisher: name: University of British Columbia
Year: 2009

description: Enantiomers are molecules with nearly identical physical properties. The separation of such molecules presents one of the most difficult separation problems in chemical industries. In particular, pharmaceutical companies are challenged with the design of new enantioseparation methods and equipment to meet stricter regulations required for the approval of optically active drugs. Ligand-exchange systems utilize the unique configuration of transition-metal complexes with a chiral ligand for the separation of enantiomers. Equilibrium ternary aminoacid- enantiomer complexes are formed via copper(II) ions and a chiral selector. These ternary complexes have distinct equilibrium binding constants, which depend on the enantiomer type and optical configuration, as well as on solvation effects. The chemical equilibria in ligand-exchange separation systems are governed by a large number of complexation reactions. In this work, a comprehensive model, based on multiple-chemical-equilibria, was developed which is capable of completely describing ligand-exchange separation systems. Equilibrium formation constants were measured experimentally by potentiometric titrations in the aqueous phase and by partition experiments in the organic phase. The work shows that solvent molecules significantly affect the enantioselectivity of the ligand. By solubilizing a water insoluble analogue of the chiral selector in an n-octanol phase, the enantioselectivity increased by nearly an order of magnitude for some enantiomers. Molecular mechanics calculations support experimental findings that water molecules significantly affect ligand selectivity and the highest enantioselectivities were predicted in non-aqueous environments, which agreed with experimental measurements performed in organic solvents. Due to low ligand enantioselectivities, the multiple-chemical-equilibria model was extended to multi-staged extraction systems. Experimentally, a hollow-fibre membrane two-phase extraction system was designed to test the model. The system consisted of a chiral selector that was solubilized in an organic phase flowing in counter-current direction to an aqueous stream containing the racemates. The enantiomer-concentration profiles predicted at different conditions were in good agreement with experiments. The work showed that ligand-exchange separations are difficult to operate due to the large number of complexation reactions. In particular, the enantioseparation performance is very sensitive to solution conditions. The developed models are useful in the prediction of chiral separation performances as a function of operating conditions and for system optimization. Furthermore, the models are applicable to any separation schemes that are governed by multiple-chemical equilibrium.
Restrained Italian domination in graphs
Creators: name: Samadi, Babak
name: Alishahi, Morteza
name: Masoumi, Iman
name: Mojdeh, Doost Ali
Publisher: name: arXiv
Year: 2020
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C69

description: For a graph $G=(V(G),E(G))$, an Italian dominating function (ID function) $f:V(G)\rightarrow\{0,1,2\}$ has the property that for every vertex $v\in V(G)$ with $f(v)=0$, either $v$ is adjacent to a vertex assigned $2$ under $f$ or $v$ is adjacent to least two vertices assigned $1$ under $f$. The weight of an ID function is $\sum_{v\in V(G)}f(v)$. The Italian domination number is the minimum weight taken over all ID functions of $G$. In this paper, we initiate the study of a variant of ID functions. A restrained Italian dominating function (RID function) $f$ of $G$ is an ID function of $G$ for which the subgraph induced by $\{v\in V(G)\mid f(v)=0\}$ has no isolated vertices, and the restrained Italian domination number $γ_{rI}(G)$ is the minimum weight taken over all RID functions of $G$. We first prove that the problem of computing this parameter is NP-hard, even when restricted to bipartite graphs and chordal graphs as well as planar graphs with maximum degree five. We prove that $γ_{rI}(T)$ for a tree $T$ of order $n\geq3$ different from the double star $S_{2,2}$ can be bounded from below by $(n+3)/2$. Moreover, all extremal trees for this lower bound are characterized in this paper. We also give some sharp bounds on this parameter for general graphs and give the characterizations of graphs $G$ with small or large $γ_{rI}(G)$.
Στοχαστικά μοντέλα πρόγνωσης σεισμών:
Creators: name: Βότση, Ειρήνη Αθανασίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2008
Subjects: Απλό μοντέλο απελευθέρωσης τάσης
Συζευγμένο μοντέλο απελευθέρωσης τάσης
Επίπεδο τάσης
Χωρική αλληλεπίδραση
Συνάρτηση του θετικού ρυθμού των αφίξεων
Aic κριτήριο
Simple stress release model
Linked stress release model
Stress field
Spatial interaction
Aic criterion
Intercity function

description: Στην παρούσα εργασία γίνεται μελέτη ενός αριθμού στοχαστικών μοντέλων, έλεγχος της προσαρμοστικότητάς τους στα δεδομένα και η επιλογή των καταλληλότερων από αυτά για την περιγραφή και την πρόγνωση των σεισμών στην περιοχή των κεντρικών νησιών του Ιονίου πελάγους. Τα στοχαστικά μοντέλα αναλύονται κι εφαρμόζονται σε ιστορικούς καταλόγους της περιοχής των κεντρικών νησιών του Ιονίου πελάγους. Αρχικά μελετάμε κι εφαρμόζουμε το απλό μοντέλο απελευθέρωσης τάσης, που είναι μια εκδοχή του στοχαστικού μοντέλου του Knopoff, βασισμένη στη θεωρία Ελαστικής Ανάπαλσης. Προκειμένου να αναγνωρίσουμε στατιστικά διακριτές περιοχές, χωρίζουμε τη συνολική περιοχή σε δύο υποπεριοχές, την υποπεριοχή της Κεφαλονιάς και την υποπεριοχή της Λευκάδας, με βάση τα κύρια σεισμοτεκτονικά χαρακτηριστικά τους κι εφαρμόζουμε το ανεξάρτητο μοντέλο απελευθέρωσης τάσης. Τέλος, επειδή προηγούμενα ερευνητικά αποτελέσματα παρείχαν ισχυρές ενδείξεις για τη μεταφορά τάσης και την αλληλεπίδραση μεταξύ των δύο υποπεριοχών, εφαρμόζουμε μια γενίκευση του απλού μοντέλου απελευθέρωσης τάσης, το συζευγμένο μοντέλο απελευθέρωσης τάσης.
description: The aim of the presented dissertation is the detailed study of a number of stochastic models, the examination of their fitting to the data and the selection of the best of them for the simulation and prediction of future earthquakes in the area of central Ionian Islands.