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JSTOR Early Journal Content, The Wisconsin Magazine of History
by (Mrs.) F. H. Anderson
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"The Story of "Glory of the Morning"" is an article from The Wisconsin Magazine of History, Volume 1 . View more articles from The Wisconsin Magazine of History . View this article on JSTOR . View this article's JSTOR metadata . You may also retrieve all of this items metadata in JSON at the following URL: https://archive.org/metadata/jstor-4630055
Source: http://www.jstor.org/stable/10.2307/4630055
Arxiv.org
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In this communication we present a study of the electronic structure of partially disordered bulk and (100) thin film of quaternary pseudo-Heusler alloy Co$_2$Fe$_{0.4}$Cr$_{0.6}$Al in the L2$_1$ phase using the Augmented Space recursion (ASR) in a scalar-relativistic tight binding linear muffin-tin orbitals (TB-LMTO) basis. We study the orbital resolved magnetic moment contributions of the constituents of the alloy. Our theoretical predictions match well with the available experimental...
Source: http://arxiv.org/abs/cond-mat/0606737v2
Arxiv.org
by 1. S. Chakraverty; 2. A. Frydman; 3. M. Bandyopadhyay; 4. S. Dattagupta; 5. Surajit Sengupta 6. P. A. Sreeram
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We have performed a series of measurements on the low temperature behavior of a magnetic nano-particle system. Our results show striking memory effects in the dc magnetization. Dipolar interactions among the nano-particles {\em suppress} the memory effect. We explain this phenomenon by the superposition of different super paramagnetic relaxation times of single domain magnetic nano- particles. Moreover, we observe a crossover in the temperature dependence of coercivity. We show that a dilute...
Source: http://arxiv.org/abs/cond-mat/0407202v1
Arxiv.org
by 1A. Aleev; E. Ardashev; A. Afonin; V. Balandin; S. Basiladze; S. Berezhnev; G. Bogdanova; M. Bogolyubsky; V. Ejov; G. Ermakov; P. Ermolov; N. Furmanec; S. Golovnia; S. Gorokhov; V. Golovkin; N. Grishin; Ya. Grishkevich; D. Karmanov; A. Kholodenko; V. Kireev; A. Kiriakov; N. Kouzmine; V. Konstantinov; V. Kramarenko; A. Kubarovsky; L. Kurchaninov; G. Lanshikov; A. Leflat; S. Lyutov; M. Merkin; G. Mitrofanov; V. Petrov; Yu. Petukhov; A. Pleskach; V. Popov; V. Riadovikov; V. Ronjin; D. Savrina; V....
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The results of data handling for E-184 experiment obtained with 70 GeV proton beam irradiation of active target with carbon, silicon and lead plates are presented. Two-prongs neutral charmed D0 and \v{D}0 -mesons decays were selected. Signal / background ratio was (51+/-17) / (38+/-13). Registration efficiency for mesons was defined and evaluation for charm production cross section at threshold energy is presented: sigma(c\^c) = 7.1 +/- 2.4(stat.) +/- 1.4(syst.) (\mu/nucleon).
Source: http://arxiv.org/abs/1004.3676v1
DOI.ORG Referenced Papers Mirror
by : McCorn
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This paper is in the public domain in USA. Metadata comes from the CrossRef API, see full record in the source URL below.
Topic: journals
Source: https://api.crossref.org/works/10.1097/00005053-190306000-00008
DOI.ORG Referenced Papers Mirror
by : McCorn
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This paper is in the public domain in USA. Metadata comes from the CrossRef API, see full record in the source URL below.
Topic: journals
Source: https://api.crossref.org/works/10.1097/00005053-190303000-00009
DOI.ORG Referenced Papers Mirror
by < McCorn
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This paper is in the public domain in USA. Metadata comes from the CrossRef API, see full record in the source URL below.
Topic: journals
Source: https://api.crossref.org/works/10.1097/00005053-190301000-00006
PubMed Central
by ?degard, J?rgen; Meuwissen, Theo HE
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This article is from Genetics, Selection, Evolution : GSE , volume 46 . Abstract Background: Genomic selection methods require dense and widespread genotyping data, posing a particular challenge if both sexes are subject to intense selection (e.g., aquaculture species). This study focuses on alternative low-cost genomic selection methods (IBD-GS) that use selective genotyping with sparse marker panels to estimate identity-by-descent relationships through linkage analysis. Our aim was to...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3909298
PubMed Central
by ?irrakhimov, Erkin ?; Kerimkulova, Alina S; Lunegova, ?lga S; Mirrakhimov, Aibek E; Nabiev, Malik P; Neronova, Kseniya V; Bayramukova, Asiyat A; Alibaeva, Nazira T; Satarov, Nurdin
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This article is from BMC Research Notes , volume 7 . Abstract Background: Leptin, an adipocytokine produced by adipose tissue, along with the traditional cardiometabolic risk factors, contributes to the development of cardiovascular complications. At the same time, ethnic features of adipocytokines have been insufficiently investigated, especially among Asians, who have an increased risk of cardiovascular complications compared with Europeans. Aim of study was to investigate the relationship...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4105887
PubMed Central
by ?steras, Nina; Hagen, Kare Birger; Grotle, Margreth; Sand-Svartrud, Anne-Lene; Mowinckel, Petter; Aas, Eline; Kjeken, Ingvild
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This article is from BMC Musculoskeletal Disorders , volume 15 . Abstract Background: Hand osteoarthritis (OA) is one of the most prevalent musculoskeletal diseases in an adult population and may have a large influence on an individual’s functioning, health-related quality of life and participation in society. Several studies have demonstrated that exercises may reduce pain and improve functioning in people with knee OA, with a similar effect suggested for hip OA. For hand OA, available...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3995554
PubMed Central
by ?stergaard, Leif; Aamand, Rasmus; Karabegovic, Sanja; Tietze, Anna; Blicher, Jakob Udby; Mikkelsen, Irene Klaerke; Iversen, Nina Kerting; Secher, Niels; Engedal, Thorbj?rn S?ndergaard; Anzabi, Mariam; Jimenez, Eugenio Gutierrez; Cai, Changsi; Koch, Klaus Ulrik; Naess-Schmidt, Erhard Trillingsgaard; Obel, Annette; Juul, Niels; Rasmussen, Mads; S?rensen, Jens Christian Hedemann
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This article is from Journal of Cerebral Blood Flow & Metabolism , volume 33 . Abstract The mortality after aneurysmal subarachnoid hemorrhage (SAH) is 50%, and most survivors suffer severe functional and cognitive deficits. Half of SAH patients deteriorate 5 to 14 days after the initial bleeding, so-called delayed cerebral ischemia (DCI). Although often attributed to vasospasms, DCI may develop in the absence of angiographic vasospasms, and therapeutic reversal of angiographic vasospasms...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3851911
PubMed Central
by ?stern, Rune; Fagerheim, Toril; Hjellnes, Helene; Nygard, Bj?rn; Mellgren, Svein Ivar; Nilssen, ?ivind
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This article is from BMC Medical Genetics , volume 15 . Abstract Background: The identification of disease causing, or putative disease causing, mutations in index patients with Charcot-Marie-Tooth disease (CMT) allows for genetic testing of family members. Relevant variants identified in index patients are of either definite, likely or uncertain pathogenicity. The main objective of this study was to make an evaluation of the family investigations performed as part of the assessment of genetic...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3900263
PubMed Central
by ?yen, Jannike; Gram Gjesdal, Clara; Nygard, Ottar Kjell; Lie, Stein Atle; Meyer, Haakon E.; Apalset, Ellen Margrete; Ueland, Per Magne; Pedersen, Eva Ringdal; Midttun, ?ivind; Vollset, Stein Emil; Tell, Grethe S.
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This article is from PLoS ONE , volume 9 . Abstract Lower bone mineral density (BMD) in smokers may be attributable to lower body weight or fat mass, rather than to a direct effect of smoking. We analyzed the effects of smoking exposure, assessed by plasma cotinine, and body fat on BMD and the risk of subsequent hip fracture. In the community-based Hordaland Health Study (HUSK), 3003 participants 46–49 years and 2091 subjects 71–74 years were included. Cotinine was measured in plasma and...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3965480
Arxiv.org
by A . H. Prestwich; J. A. Irwin; R. E. Kilgard; M. I. Krauss; A. Zezas; F. Primini; P. Kaaret
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The X-ray populations of Local group galaxies have been classified in detail by Einstein, ROSAT and ASCA revealing a mix of binaries, supernova remnants and HII regions. However, these observatories were unable to resolve X-ray sources in galaxies beyond the local group. With Chandra's exquisite spatial resolution we are able to resolve sources in a sample of nearby galaxies. We show that there are highly significant differences in the X-ray colors of sources in bulge and disk systems. These...
Source: http://arxiv.org/abs/astro-ph/0206127v2
Arxiv.org
by A . N. Ivanov; M. Nagy; N. I. Troitskaya
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We suggest an effective quark model for low-lying baryon octet and decuplet motivated by QCD with a linearly rising confinement potential incorporating the extended Nambu-Jona-Lasinio (ENJL) model with linear realization of chiral U(3)XU(3) symmetry. Baryons are considered as external heavy states coupled to local three-quark currents with fixed spinorial structure and to low-lying mesons through quark-meson interactions defined in the ENJL--model. In the constituent quark loop representation...
Source: http://arxiv.org/abs/hep-ph/9805348v3
Arxiv.org
by A . Rahaman; Ushasi Datta; T. Aumann; S. Beceiro-Novo; K. Boretzky; C. Caesar; B. V. Carlson; W. N. Catford; S. Chakraborty; M. Chartier; D. Cortina-Gil; G. De. Angelis; D. Gonzalez-Diaz; H. Emling; P. Diaz Fernandez; L. M. Fraile; O. Ershova; H. Geissel; B. Jonson; H. Johansson; N. Kalantar-Nayestanaki; R. Krücken; T. Kröll; J. Kurcewicz; C. Langer; T. Le Bleis; Y. Leifels; G. Münzenberg; J. Marganiec; T. Nilsson; C. Nociforo; A. Najafi; V. Panin; S. Paschalis; R. Plag; R. Reifarth; C....
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First results are reported on the ground state configurations of the neutron-rich $^{29,30}$Na isotopes, obtained via Coulomb dissociation (CD) measurements as a method of the direct probe. The invariant mass spectra of those nuclei have been obtained through measurement of the four-momentum of all decay products after Coulomb excitation on a $^{208}Pb$ target at energies of 400-430 MeV/nucleon using FRS-ALADIN-LAND setup at GSI, Darmstadt. Integrated Coulomb-dissociation cross-sections (CD) of...
Topics: Nuclear Experiment, Nuclear Theory
Source: http://arxiv.org/abs/1601.04002
Arxiv.org
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We extend our method of partner symmetries to the hyperbolic complex Monge-Amp\`ere equation and the second heavenly equation of Pleba\~nski. We show the existence of partner symmetries and derive the relations between them for both equations. For certain simple choices of partner symmetries the resulting differential constraints together with the original heavenly equations are transformed to systems of linear equations by an appropriate Legendre transformation. The solutions of these linear...
Source: http://arxiv.org/abs/math-ph/0403020v3
Arxiv.org
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Influence of two type of spin structures on the form of the Fermi surface (FS) and a photoemission intensity map is studied for t-t'-U Hubbard model. Mean field calculations are done for the stripe phase and for the spiral spin structure. It is shown, that unlike a case of electron doping, the hole-doped models are unstable with respect to formation of such structures. The pseudogap anisotropies are different for h- and e- doping. In accordance with ARPES data for La2SrxCuO4 the stripe phase is...
Source: http://arxiv.org/abs/cond-mat/0305685v1
Arxiv.org
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We have studied properties and shell structure of the superheavy elements from Z=102 to Z=120 within the framework of the RMF theory. The region of study spans nuclides with neutron numbers N=150-190. The Lagrangian model NL-SV1 with the inclusion of the vector self-coupling of the omega-meson has been employed in this work. We have performed RMF + BCS calculations for an axially deformed configuration of nuclei. The ground-state binding energies, single-particle properties and quadrupole...
Source: http://arxiv.org/abs/0908.2678v2
Arxiv.org
by A Acin; E. Bagan; M. Baig; Ll. Masanes; R. Munoz-Tapia
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We address the problem of non-orthogonal two-state discrimination when multiple copies of the unknown state are available. We give the optimal strategy when only fixed individual measurements are allowed and show that its error probability saturates the collective (lower) bound asymptotically. We also give the optimal strategy when adaptivity of individual von Neumann measurements is allowed (which requires classical communication), and show that the corresponding error probability is exactly...
Source: http://arxiv.org/abs/quant-ph/0410097v2
Arxiv.org
by A Ashtari Esfahani; S Böser; C Claessens; L de Viveiros; P J Doe; S Doeleman; M Fertl; E C Finn; J A Formaggio; M Guigue; K M Heeger; A M Jones; K Kazkaz; B H LaRoque; E Machado; B Monreal; J A Nikkel; N S Oblath; R G H Robertson; L J Rosenberg; G Rybka; L Saldaña; P L Slocum; J R Tedeschi; T Thümmler; B A VanDevender; M Wachtendonk; J Weintroub; A Young; E Zayas
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We present a working concept for Phase III of the Project 8 experiment, aiming to achieve a neutrino mass sensitivity of $2~\mathrm{eV}$ ($90~\%$ C.L.) using a large volume of molecular tritium and a phased antenna array. The detection system is discussed in detail.
Topics: Physics, High Energy Physics - Experiment, Nuclear Experiment, Instrumentation and Detectors
Source: http://arxiv.org/abs/1703.05759
Arxiv.org
by A Ashtari Esfahani; S Böser; C Claessens; L de Viveiros; P J Doe; S Doeleman; M Fertl; E C Finn; J A Formaggio; M Guigue; K M Heeger; A M Jones; K Kazkaz; B H LaRoque; E Machado; B Monreal; J A Nikkel; N S Oblath; R G H Robertson; L J Rosenberg; G Rybka; L Saldaña; P L Slocum; J R Tedeschi; T Thümmler; B A Vandevender; M Wachtendonk; J Weintroub; A Young; E Zayas
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The Project 8 collaboration seeks to measure the absolute neutrino mass scale by means of precision spectroscopy of the beta decay of tritium. Our technique, cyclotron radiation emission spectroscopy, measures the frequency of the radiation emitted by electrons produced by decays in an ambient magnetic field. Because the cyclotron frequency is inversely proportional to the electron's Lorentz factor, this is also a measurement of the electron's energy. In order to demonstrate the viability of...
Topics: Physics, High Energy Physics - Experiment, Nuclear Experiment, Instrumentation and Detectors
Source: http://arxiv.org/abs/1703.05760
Arxiv.org
by A Ashtari Esfahani; S Böser; C Claessens; L de Viveiros; P J Doe; S Doeleman; M Fertl; E C Finn; J A Formaggio; M Guigue; K M Heeger; A M Jones; K Kazkaz; B H LaRoque; E Machado; B Monreal; J A Nikkel; N S Oblath; R G H Robertson; L J Rosenberg; G Rybka; L Saldaña; P L Slocum; J R Tedeschi; T Thümmler; B A Vandevender; M Wachtendonk; J Weintroub; A Young; E Zayas
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Following the successful observation of single conversion electrons from $^{83m}$Kr using Cyclotron Radiation Emission Spectroscopy (CRES), Project 8 is now advancing its focus toward a tritium beta decay spectrum. A tritium spectrum will be an important next step toward a direct measurement of the neutrino mass for Project 8. Here we discuss recent progress on the development and commissioning of a new gas cell for use with tritium, and outline the primary goals of the experiment for the near...
Topics: Physics, High Energy Physics - Experiment, Nuclear Experiment, Instrumentation and Detectors
Source: http://arxiv.org/abs/1703.05761
Arxiv.org
by A Bailly-Reyre; H. T. Diep; M Kaufman
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We study in this paper the phase transition in a mobile Potts model by the use of Monte Carlo simulation. The mobile Potts model is related to a diluted Potts model which is also studied here by a mean-field approximation. We consider a lattice where each site is either vacant or occupied by a $q$-state Potts spin. The Potts spin can move from one site to a nearby vacant site. In order to study the surface sublimation, we consider a system of Potts spins contained in a recipient with a...
Topics: Statistical Mechanics, Condensed Matter
Source: http://arxiv.org/abs/1510.04460
Arxiv.org
by A Barresi; G. Burgio; M. Muller-Preussker
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We investigate the phase structure of pure SU(2) LGT at finite temperature in the mixed fundamental and adjoint representation modified with a Z2 monopole chemical potential. The decoupling of the finite temperature phase transition from unphysical zero temperature bulk phase transitions is analyzed with special emphasis on the continuum limit. The possible relation of the adjoint Polyakov loop to an order parameter for the finite temperature phase transition and to the topological structure of...
Source: http://arxiv.org/abs/hep-lat/0110139v1
Arxiv.org
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We evaluate background rejection capabilities and physics performance of a detector composed of two diverse elements: a sensitive target (filled with one or two species of liquefied noble gasses) and an active veto (made of Gd-doped ultra-pure water). A GEANT4 simulation shows that for a direct WIMP search, this device can reduce the neutron background to O(1) event per year per tonne of material. Our calculation shows that an exposure of one tonne $\times$ year will suffice to exclude...
Source: http://arxiv.org/abs/0805.0694v2
Arxiv.org
by A Caradoc; O Foda; M Wheeler; M Zuparic
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We consider the trigonometric Felderhof model, of free fermions in an external field, on a finite lattice with domain wall boundary conditions. The vertex weights are functions of rapidities and external fields. We obtain a determinant expression for the partition function in the special case where the dependence on the rapidities is eliminated, but for general external field variables. This determinant can be evaluated in product form. In the homogeneous limit, it is proportional to a 2-Toda...
Source: http://arxiv.org/abs/math-ph/0702012v2
Arxiv.org
by A Crisanti; G Paladin; M Serva; A Vulpiani
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Products of random transfer matrices are applied to low dimensional disordered systems to evaluate numerically extensive quantities such as entropy and overlap probability distribution. The main advantage is the possibility to avoid numerical differentiation. The method works for arbitrary disorder distributions at any temperature.
Source: http://arxiv.org/abs/cond-mat/9304023v1
Arxiv.org
by A Crisanti; M. Falcioni; G. Lacorata; R. Purini; A. Vulpiani
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We discuss how to characterize the behavior of a chaotic dynamical system depending on a parameter that varies periodically in time. In particular, we study the predictability time, the correlations and the mean responses, by defining a local--in--time version of these quantities. In systems where the time scale related to the time periodic variation of the parameter is much larger than the ``internal'' time scale, one has that the local quantities strongly depend on the phase of the cycle. In...
Source: http://arxiv.org/abs/chao-dyn/9605011v2
Arxiv.org
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A uniform approximation for the coherent state propagator, valid in the vicinity of phase space caustics, was recently obtained using the Maslov method combined with a dual representation for coherent states. In this paper we review the derivation of this formula and apply it to two model systems: the one-dimensional quartic oscillator and a two-dimensional chaotic system.
Source: http://arxiv.org/abs/0801.1593v1
Arxiv.org
by A Djaballah; Alexandre Chapoutot; Michel Kieffer; O Bouissou
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Recently, barrier certificates have been introduced to prove the safety of continuous or hybrid dynamical systems. A barrier certificate needs to exhibit some barrier function, which partitions the state space in two subsets: the safe subset in which the state can be proved to remain and the complementary subset containing some unsafe region. This approach does not require any reachability analysis, but needs the computation of a valid barrier function, which is difficult when considering...
Topics: Systems and Control, Computing Research Repository, Dynamical Systems, Mathematics
Source: http://arxiv.org/abs/1506.05885
Arxiv.org
by A Fledderjohann; C Gerhardt; K H Mutter; A Schmitt; M Karbach
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In the presence of a uniform field the one-dimensional spin-$\frac{1}{2}$ antiferromagnetic Heisenberg model develops zero frequency excitations at field-dependent 'soft mode' momenta. We determine three types of critical quantities, which we extract from the finite-size dependence of the lowest excitation energies, the singularities in the static structure factors and the infrared singularities in the dynamical structure factors at the soft mode momenta. We also compare our results with the...
Source: http://arxiv.org/abs/cond-mat/9604085v1
Arxiv.org
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The impact of the non-2-spinon excitations of the one-dimensional $S=1/2$ Heisenberg antiferromagnet on the integrated intensity, the susceptibility, the frequency moments, and the Euclidian time representation of the $T=0$ dynamic spin structure factor $S(q,\omega)$ is studied on the basis of finite-size data for chains with up to $N=28$ sites.
Source: http://arxiv.org/abs/cond-mat/9607102v1
Arxiv.org
by A Freise; S Hild; K Somiya; K A Strain; A Vicere; M Barsuglia; S Chelkowski
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The third generation of gravitational wave observatories, aiming to provide 100 times better sensitivity than currently operating interferometers, is expected to establish the evolving field of gravitational wave astronomy. A key element for achieving the ambitious sensitivity goal is the exploration of new interferometer geometries, topologies and configurations. In this article we review the current status of the ongoing design work for third-generation gravitational wave observatories. The...
Source: http://arxiv.org/abs/0908.0353v2
Arxiv.org
by A G Shalashov; M E Viktorov; D A Mansfeld; S V Golubev
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This paper summarizes the studies of plasma kinetic instabilities in the electron cyclotron frequency range carried out over the last decade at the Institute of Applied Physics of Russian Academy of Sciences. We investigate the nonequilibrium plasma created and sustained by high-power microwave radiation of a gyrotron under the electron cyclotron resonance condition. Resonant plasma heating results in the formation of at least two electron components, one of which, more dense and cold,...
Topics: Physics, Plasma Physics
Source: http://arxiv.org/abs/1612.00695
Arxiv.org
by A Garcia; M Gonzalez; P Paranthoën
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The dynamics of a passive scalar gradient experiencing fluctuating velocity gradient through the Lagrangian variations of strain persistence is studied. To this end, a systematic, numerical analysis based on the equation for the orientation of the gradient of a non-diffusive scalar in two-dimensional flow is performed. When the gradient responds weakly its orientation properties are determined by the mean value of strain persistence. Statistical alignment of the scalar gradient with the...
Topics: Physics, Classical Physics
Source: http://arxiv.org/abs/1702.00180
Arxiv.org
by A Georgakakis; V. Chavushyan; M. Plionis; I. Georgantopoulos; E. Koulouridis; I. Leonidaki; A. Mercado
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This paper uses the 1st XMM Serendipitous Source Catalog compiled by the XMM Science Center to identify low-z X-ray selected normal galaxy candidates. Our sample covers a total area of ~6deg^2 to the 0.5-2keV limit 1e-15cgs. A total of 23 sources are selected on the basis of low X-ray-to-optical flux ratio logfx/fopt
Source: http://arxiv.org/abs/astro-ph/0601207v1
Arxiv.org
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In this paper we calculate the position and momentum space information entropies for the quantum states associated with a particular physical system, i.e. the isotonic oscillator Hamiltonian. We present our results for its ground states, as well as for its excited states. We observe that the lower bound of the sum of the position and momentum entropies expressed by the Beckner, Bialynicki-Birula and Mycielski (BBM) inequality is satisfied. Moreover, there exist eigenstates that exhibit...
Source: http://arxiv.org/abs/1108.5727v1
PubMed Central
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This article is from Iranian Journal of Pharmaceutical Research : IJPR , volume 13 . Abstract Methanol extracts of Callistemon viminalis (Sol. Ex Gaertner) G.Don Ex Loudon fruits, bark and leaves were tested for molluscicidal activity. Snails were collected and kept in dechlorinated water under standard condition. Ten adults Biomphalaria Alexandrina, of the same size, were introduced in plastic acquaria for each experiment. The fruits, barks and leaves were extracted with methanol and the...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4157025
Arxiv.org
by A Guttridge; S A Hopkins; S L Kemp; D Boddy; R Freytag; M P A Jones; M R Tarbutt; E A Hinds; S L Cornish
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We report a robust technique for laser frequency stabilisation that enables the reproducible loading of in excess of 10$^{9}$ Yb atoms from a Zeeman slower directly into a magneto-optical trap (MOT) operating on the $^{1}S_{0} \rightarrow \, ^{3}P_{1}$ transition, without the need for a first stage MOT on the $^{1}S_{0} \rightarrow \, ^{1}P_{1}$ transition. We use a simple atomic beam apparatus to generate narrow fluorescence signals on both the 399 nm $^{1}S_{0} \rightarrow \, ^{1}P_{1}$...
Topics: Atomic Physics, Physics
Source: http://arxiv.org/abs/1512.06723
PubMed Central
by A Hamid, Mohamad Shariff; Mohamed Ali, Mohamed Razif; Yusof, Ashril; George, John
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This article is from BMC Musculoskeletal Disorders , volume 13 . Abstract Background: Muscle injuries are one of the commonest injuries affecting athletes. It often leads to significant pain and disability causing loss of training and competition time. With current treatment, the duration to return-to-play ranges form six weeks to never, depending on injury severity. Recent researches have suggested that autologous platelet-rich plasma (PRP) injection into the injured site may hasten soft...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3493370
Arxiv.org
by A Heidmann; J. -M. Courty; M. Pinard; J. Lebars
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The sensitivity in interferometric measurements such as gravitational-wave detectors is ultimately limited by quantum noise of light. We discuss the use of feedback mechanisms to reduce the quantum effects of radiation pressure. Recent experiments have shown that it is possible to reduce the thermal motion of a mirror by cold damping. The mirror motion is measured with an optomechanical sensor based on a high-finesse cavity, and reduced by a feedback loop. We show that this technique can be...
Source: http://arxiv.org/abs/quant-ph/0311167v1
Arxiv.org
by A Hoell; R. Alkofer; M. Kloker; A. Krassnigg; C. D. Roberts; S. V. Wright
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Electron scattering at large Q^2 probes a nucleon's quark core. This core's contribution to electromagnetic form factors may be calculated using Poincare' covariant Faddeev amplitudes combined with a nucleon-photon vertex that automatically fulfills a Ward-Takahashi identity for on-shell nucleons. The calculated behaviour of G_E^p(Q^2)/G_M^p(Q^2) on 2 6 GeV^2.
Source: http://arxiv.org/abs/nucl-th/0501033v1
Arxiv.org
by A J M Medved; Damien Martin; Matt Visser
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We establish that the Einstein tensor takes on a highly symmetric form near the Killing horizon of any stationary but non-static (and non-extremal) black hole spacetime. [This follows up on a recent article by the current authors, gr-qc/0402069, which considered static black holes.] Specifically, at any such Killing horizon -- irrespective of the horizon geometry -- the Einstein tensor block-diagonalizes into ``transverse'' and ``parallel'' blocks, and its transverse components are proportional...
Source: http://arxiv.org/abs/gr-qc/0403026v1
Arxiv.org
by A J M Medved; Damien Martin; Matt Visser
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In this paper, we investigate the asymptotic nature of the quasinormal modes for "dirty" black holes -- generic static and spherically symmetric spacetimes for which a central black hole is surrounded by arbitrary "matter" fields. We demonstrate that, to the leading asymptotic order, the [imaginary] spacing between modes is precisely equal to the surface gravity, independent of the specifics of the black hole system. Our analytical method is based on locating the complex...
Source: http://arxiv.org/abs/gr-qc/0310009v3
Arxiv.org
by A J M Medved; Damien Martin; Matt Visser
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We consider the spacetime geometry of a static but otherwise generic black hole (that is, the horizon geometry and topology are not necessarily spherically symmetric). It is demonstrated, by purely geometrical techniques, that the curvature tensors, and the Einstein tensor in particular, exhibit a very high degree of symmetry as the horizon is approached. Consequently, the stress-energy tensor will be highly constrained near any static Killing horizon. More specifically, it is shown that -- at...
Source: http://arxiv.org/abs/gr-qc/0402069v2
Arxiv.org
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The formalism which has been developed to give general expressions for the determinants of differential operators is extended to the physically interesting situation where these operators have a zero mode which has been extracted. In the approach adopted here, this mode is removed by a novel regularisation procedure, which allows remarkably simple expressions for these determinants to be derived.
Source: http://arxiv.org/abs/cond-mat/9509126v1
Arxiv.org
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In this reply we show that the criticisms raised by J. Noronha are based on a misapplication of the model we have proposed in [A. Jaouadi, M. Telmini, E. Charron, Phys. Rev. A 83, 023616 (2011)]. Here we explicitly discuss the range of validity of the approximations underlying our analytical model. We also show that the discrepancies pointed out for very small atom numbers and for very anisotropic traps are not surprising since these conditions exceed the range of validity of the model.
Topics: Quantum Physics, Quantum Gases, Condensed Matter
Source: http://arxiv.org/abs/1507.02016
Arxiv.org
by A Jensen; M Krishna
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In this paper we give some new criteria for identifying the components of a probability measure, in its Lebesgue decomposition. This enables us to give new criteria to identify spectral types of self-adjoint operators on Hilbert spaces, especially those of interest.
Source: http://arxiv.org/abs/math/0607658v1
Arxiv.org
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The connection between the method of comparison equations (generalized WKB method) and the Ermakov-Pinney equation is established. A perturbative scheme of solution of the generalized Ermakov-Pinney equation is developed and is applied to the construction of perturbative series for second-order differential equations with and without turning points.
Source: http://arxiv.org/abs/math-ph/0506017v2
Arxiv.org
by A Klopotowski; M G Nadkarni; K P S Bhaskara Rao
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We propose here a multidimensional generalisation of the notion of link introduced in our previous papers and we discuss some consequences for simplicial measures and sums of function algebras.
Source: http://arxiv.org/abs/math/0406571v1
Arxiv.org
by A Knopfmacher; M E Mays
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Graph compositions generalize both integer compositions and partitions of a finite set. We develop formulas, generating functions and recurrence relations for composition counting functions for several families of graphs.
Source: http://arxiv.org/abs/math/0002056v1
Arxiv.org
by A M Rogers; W G Lynch; M A Famiano; M S Wallace; F Amorini; D Bazin; R J Charity; F Delaunay; R T de Souza; J Elson; A Gade; D Galaviz; S Hudan; J Lee; S Lobostov; S Lukyanov; M Matos; M Mocko; M B Tsang; D Shapira; L G Sobotka; G Verde
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The first direct measurement of the proton separation energy, Sp, for the proton-unbound nucleus 69Br is reported. Of interest is the exponential dependence of the 2p-capture rate on Sp which can bypass the 68Se waiting-point in the astrophysical rp process. An analysis of the observed proton decay spectrum is given in terms of the 69Se mirror nucleus and the influence of Sp is explored within the context of a single-zone X-ray burst model.
Source: http://arxiv.org/abs/1009.2950v1
Arxiv.org
by A Majumdar; JM Robbins; M Zyskin
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We consider nematic liquid crystals in a bounded, convex polyhedron described by a director field n(r) subject to tangent boundary conditions. We derive lower bounds for the one-constant elastic energy in terms of topological invariants. For a right rectangular prism and a large class of topologies, we derive upper bounds by introducing test configurations constructed from local conformal solutions of the Euler-Lagrange equation. The ratio of the upper and lower bounds depends only on the...
Source: http://arxiv.org/abs/math-ph/0410001v1
Arxiv.org
by A Majumdar; JM Robbins; M Zyskin
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Unit-vector fields $\nvec$ on a convex polyhedron $P$ subject to tangent boundary conditions provide a simple model of nematic liquid crystals in prototype bistable displays. The equilibrium and metastable configurations correspond to minimisers and local minimisers of the Dirichlet energy, and may be regarded as $S^2$-valued harmonic maps on $P$. We consider unit-vector fields which are continuous away from the vertices of $P$. A lower bound for the infimum Dirichlet energy for a given...
Source: http://arxiv.org/abs/0905.1585v1
Arxiv.org
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A unit-vector field n:P \to S^2 on a convex polyhedron P \subset R^3 satisfies tangent boundary conditions if, on each face of P, n takes values tangent to that face. Tangent unit-vector fields are necessarily discontinuous at the vertices of P. We consider fields which are continuous elsewhere. We derive a lower bound E^-_P(h) for the infimum Dirichlet energy E^inf_P(h) for such tangent unit-vector fields of arbitrary homotopy type h. E^-_P(h) is expressed as a weighted sum of minimal...
Source: http://arxiv.org/abs/math-ph/0606024v1
Arxiv.org
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It is shown that on a finite phase plane the $kq$-coordinates and the sites of a von Neumann lattice are conjugate to one another. This elementary result holds when the number $M$ defining the size of the phase plane can be expressed as a product, $M=M_{1}M_{2}$, with $M_{1}$ and $M_{2}$ being relatively prime. As a consequence of this result a hitherto unknown wave function is defined giving the probability of simultaneously measuring the momentum and coordinate on the von Neumann lattice.
Source: http://arxiv.org/abs/0806.3832v2
Arxiv.org
by A Marzuoli; F A Raffa; M Rasetti
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We explore a variety of reasons for considering su(1,1) instead of the customary h(1) as the natural unifying frame for characterizing boson systems. Resorting to the Lie-Hopf structure of these algebras, that shows how the Bose-Einstein statistics for identical bosons is correctly given in the su(1,1) framework, we prove that quantization of Maxwell's equations leads to su(1,1), relativistic covariance being naturally recognized as an internal symmetry of this dynamical algebra. Moreover...
Topics: Quantum Physics, Mathematics, Mathematical Physics
Source: http://arxiv.org/abs/1406.2908
Arxiv.org
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We show that for N = 1 supersymmetric Yang-Mills theory it is possible to build an off-shell nilpotent BRST and anti-BRST algebra in terms of a BRST superspace formalism. This is based on the introduction of the basic fields of the quantized theory together with an auxiliary real field via the lowest components of the superfield components of a superYang-Mills connection. Here, the associated supercurvature is constrained by horizontality conditions as in ordinary Yang-Mills theory. We also...
Topic: High Energy Physics - Theory
Source: http://arxiv.org/abs/1509.06115
Arxiv.org
by A Milov; W Anderson; B Azmoun; C-Y Chi; A Drees; A Dubey; M Durham; Z Fraenkel; J Harder; T Hemmick; R Hutter; B Jacak; J Kamin; A Kozlov; M Naglis; P O'Connor; R Pisani; V Radeka; I Ravinovich; T Sakaguchi; D Sharma; A Sickles; S Stoll; I Tserruya; B Yu; C Woody
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A new Hadron Blind Detector (HBD) for electron identification in high density hadron environment has been installed in the PHENIX detector at RHIC in the fall of 2006. The HBD will identify low momentum electron-positron pairs to reduce the combinatorial background in the $e^{+}e^{-}$ mass spectrum, mainly in the low-mass region below 1 GeV/c$^{2}$. The HBD is a windowless proximity-focusing Cherenkov detector with a radiator length of 50 cm, a CsI photocathode and three layers of Gas Electron...
Source: http://arxiv.org/abs/physics/0701273v1
Arxiv.org
by A Misaki; E Konishi; N Takahashi; Y Minorikawa; V I Galkin; M Ishiwata; I Nakamura; M Kato
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We examine neutrino events occurring inside the SuperKamiokande (SK) detector and those occurring outside the same detector using computer simulations. We analyze the zenith angle distribution of Fully Contained Events and show the method for the determination of the incident neutrino by the SK group is unreliable. The analysis of the neutrino events occurring outside the detector shows these events agree with the Monte Carlo simulation without oscillation.
Source: http://arxiv.org/abs/hep-ex/0605020v1
Arxiv.org
by A Mueller; S Schippers; D Esteves-Macaluso; M Habibi; A Aguilar; A L D Kilcoyn; R A Phaneuf; C P Ballance; B M McLaughlin
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We report on experimental and theoretical results for the photoionization of Ag-like xenon ions, Xe$^{7+}$, in the photon energy range 95 to 145~eV. The measurements were carried out at the Advanced Light Source at an energy resolution of $\Delta$E = 65 meV with additional measurements made at $\Delta$E = 28 meV and 39 meV. Small resonance features below the ground-state ionization threshold, at about 106 eV, are due to the presence of metastable Xe$^{7+} (4d^{10} 4f~^2{\rm...
Topics: Physics, Atomic Physics
Source: http://arxiv.org/abs/1409.2917
Arxiv.org
by A Mueller; S Schippers; R A Phaneuf; S W J Scully; A Aguilar; C Cisneros; M F Gharaibeh; A S Schlachter; B M McLaughlin
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Absolute cross sections for the K-shell photoionization of Be-like boron ions were measured with the ion-photon merged-beams technique at the Advanced Light Source synchrotron radiation facility. High-resolution spectroscopy with E/$\Delta$E up to 8800 ($\Delta$E $\sim$ 22 meV) covered the energy ranges 193.7 -- 194.7 eV and 209 -- 215 eV. Lifetimes of the strongest resonances are determined with relative uncertainties down to approximately 4% for the broadest resonance. The measured resonance...
Topics: Physics, Atomic Physics, High Energy Astrophysical Phenomena, Astrophysics
Source: http://arxiv.org/abs/1405.0073
Arxiv.org
by A Müller; S Schippers; R. A. Phaneuf; A. L. D. Kilcoyne; H. Bräuning; A. S. Schlachter; M. Lu; B. M. McLaughlin
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High-resolution photoionization experiments were carried out using beams of Be-like C$^{2+}$, N$^{3+}$, and O$^{4+}$ ions with roughly equal populations of the $^1$S ground-state and the $^3$P$^o$ manifold of metastable components. The energy scales of the experiments are calibrated with uncertainties of 1 to 10 meV depending on photon energy. Resolving powers beyond 20,000 were reached allowing for the separation of contributions from the individual metastable $^3$P$^o_0$, $^3$P$^o_1$, and...
Source: http://arxiv.org/abs/1203.6533v1
Arxiv.org
by A Müller; S. Schippers; R. A. Phaneuf; S. W. J. Scully.; A. Aguilar; A. M. Covington; I. Álvarez; C Cisneros; E. D. Emmons; M. F. Gharaibeh; G. Hinojosa; A S. Schlachter; B. M. McLaughlin
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Absolute cross sections for the K-shell photoionization of ground-state Li-like carbon [C$^{3+}$(1s$^2$2s $^2$S)] ions were measured by employing the ion-photon merged-beams technique at the Advanced Light Source. The energy ranges 299.8--300.15 eV, 303.29--303.58 eV and 335.61--337.57 eV of the [1s(2s2p)$^3$P]$^2$P, [1s(2s2p)$^1$P]$^2$P and [(1s2s)$^3$S 3p]$^2$P resonances, respectively, were investigated using resolving powers of up to 6000. The autoionization linewidth of the...
Source: http://arxiv.org/abs/1203.5441v1
Arxiv.org
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Different laser devices working as ``atom diodes'' or ``one-way barriers'' for ultra-cold atoms have been proposed recently. They transmit ground state level atoms coming from one side, say from the left, but reflect them when they come from the other side. We combine a previous model, consisting of the stimulated Raman adiabatic passage (STIRAP) from the ground to an excited state and a state-selective mirror potential, with a localized quenching laser which produces spontaneous decay back to...
Source: http://arxiv.org/abs/quant-ph/0601213v1
Arxiv.org
by A Sapora; M Codegone; G Barbero; LR Evangelista
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The adsorption phenomenon of neutral particles from the limiting surfaces of the sample in the Langmuir approximation is investigated. The diffusion equation regulating the redistribution of particles in the bulk is assumed to be of hyperbolic type, in order to take into account the finite velocity of propagation of the density variations. We show that in this framework the condition on the conservation of the number of particles gives rise to a nonlocal boundary condition. We solve the partial...
Topics: Mathematics, Mathematical Physics, Statistical Mechanics, Condensed Matter
Source: http://arxiv.org/abs/1402.2853
Arxiv.org
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Magnetic and charge susceptibilities of the two-dimensional repulsive Hubbard model are investigated applying a strong coupling diagram technique in which the expansion in powers of the hopping constants is used. For small lattices and high temperatures results are in agreement with Monte Carlo simulations. With the departure from half-filling $x$ the low-frequency magnetic susceptibility becomes incommensurate and the incommensurability parameter grows with $x$. The incommensurability, its...
Source: http://arxiv.org/abs/0806.4464v1
Arxiv.org
by A Spinelli; M P Rebergen; A F Otte
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Low-dimensional quantum magnetism presents a seemingly unlimited source of rich, intriguing physics. Yet, as realistic experimental representations are hard to come by, the field remains predominantly theoretical. In recent years, artificial spin structures built through manipulation of magnetic atoms in a scanning tunnelling microscope have developed into a promising testing ground for experimental verification of theoretical models. Here we present an overview of available tools and discuss...
Topics: Condensed Matter, Mesoscale and Nanoscale Physics
Source: http://arxiv.org/abs/1504.05021
Arxiv.org
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The Weibel instability is investigated with PIC simulations of an initially unmagnetized and spatially uniform electron plasma. This instability, which is driven by the thermally anisotropic electron distribution, generates electromagnetic waves with wave vectors perpendicular to the direction of the higher temperature. Two simulations are performed: A 2D simulation, with a simulation plane that includes the direction of higher temperature, demonstrates that the wave spectrum is initially...
Source: http://arxiv.org/abs/0905.2282v1
Arxiv.org
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An instability driven by the thermal anisotropy of a single electron species is investigated in a 2D particle-in-cell (PIC) simulation. This instability is the one considered by Weibel and it differs from the beam driven filamentation instability. A comparison of the simulation results with analytic theory provides similar exponential growth rates of the magnetic field during the linear growth phase of the instability. We observe in accordance with previous works the growth of electric fields...
Source: http://arxiv.org/abs/1006.3057v1
Arxiv.org
by A Zonca; C Franceschet; P Battaglia; F Villa; A Mennella; O D'Arcangelo; R Silvestri; M Bersanelli; E Artal; R C Butler; F Cuttaia; R J Davis; S Galeotta; N Hughes; P Jukkala; V-H Kilpia; M Laaninen; N Mandolesi; M Maris; L Mendes; M Sandri; L Terenzi; J Tuovinen; J Varis; A Wilkinson
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The Low Frequency Instrument (LFI) is an array of pseudo-correlation radiometers on board the Planck satellite, the ESA mission dedicated to precision measurements of the Cosmic Microwave Background. The LFI covers three bands centred at 30, 44 and 70 GHz, with a goal bandwidth of 20% of the central frequency. The characterization of the broadband frequency response of each radiometer is necessary to understand and correct for systematic effects, particularly those related to foreground...
Source: http://arxiv.org/abs/1001.4589v1
Arxiv.org
by A de Ugarte Postigo; T. A. Fatkhullin; G. Johannesson; J. Gorosabel; V. V. Sokolov; A. J. Castro-Tirado; Yu. Yu. Balega; O. I. Spiridonova; M. Jelinek; S. Guziy; D. Perez-Ramirez; J. Hjorth; P. Laursen; D. Bersier; S. B. Pandey; M. Bremer; A. Monfardini; K. Y. Huang; Y. Urata; W. H. Ip; T. Tamagawa; D. Kinoshita; T. Mizuno; Y. Arai; H. Yamagishi; T. Soyano; F. Usui; M. Tashiro; K. Abe; K. Onda; Z. Aslan; I. Khamitov; T. Ozisik; U. Kiziloglu; I. Bikmaev; N. Sakhibullin; R. Burenin; M. Pavlinsky;...
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Aims. Understand the shape and implications of the multiband light curve of GRB 050408, an X-ray rich (XRR) burst. Methods. We present a multiband optical light curve, covering the time from the onset of the gamma-ray event to several months after, when we only detect the host galaxy. Together with X-ray, millimetre and radio observations we compile what, to our knowledge, is the most complete multiband coverage of an XRR burst afterglow to date. Results. The optical and X-ray light curve is...
Source: http://arxiv.org/abs/astro-ph/0612545v1
PubMed Central
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This article is from International Journal of Clinical Pediatric Dentistry , volume 1 . Abstract Aims: The aim of this study was to estimate the count of Streptococcus mutans in saliva of caries free children using Dentocult SM strip mutans and to evaluate the effect of fluoride varnish on the Streptococcus mutans count in saliva of these caries free children.Methods and material: Thirty caries free children were selected for the study based on the information obtained from a questionnaire...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4086538
PubMed Central
by A, Deepti; S, Shifa; MS, Muthu; Prabhu V, Rathna
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This article is from International Journal of Clinical Pediatric Dentistry , volume 1 . Abstract This is a rare case report of apexification in an immature permanent mandibular first molar. Calcium hydroxide was used for apical root closure of both the mesial and distal canals. Root closure occurred after 13 months following which obturation of the tooth was completed.
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4086544