cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Capturing the impact of external interference on HPC application performance
Creators: name: Shah, Aamer
Publisher: name: UNSPECIFIED
Year: 2020

description: HPC applications are large software packages with high computation and storage requirements. To meet these requirements, the architectures of supercomputers are continuously evolving and their capabilities are continuously increasing. Present-day supercomputers have achieved petaflops of computational power by utilizing thousands to millions of compute cores, connected through specialized communication networks, and are equipped with petabytes of storage using a centralized I/O subsystem. While fulfilling the high resource demands of HPC applications, such a design also entails its own challenges. Applications running on these systems own the computation resources exclusively, but share the communication interconnect and the I/O subsystem with other concurrently running applications. Simultaneous access to these shared resources causes contention and inter-application interference, leading to degraded application performance. Inter-application interference is one of the sources of run-to-run variation. While other sources of variation, such as operating system jitter, have been investigated before, this doctoral thesis specifically focuses on inter-application interference and studies it from the perspective of an application. Variation in execution time not only causes uncertainty and affects user expectations (especially during performance analysis), but also causes suboptimal usage of HPC resources. Therefore, this thesis aims to evaluate inter-application interference, establish trends among applications under contention, and approximate the impact of external influences on the runtime of an application. To this end, this thesis first presents a method to correlate the performance of applications running side-by-side. The method divides the runtime of a system into globally synchronized, fine-grained time slices for which application performance data is recorded separately. The evaluation of the method demonstrates that correlating application performance data can identify inter-application interference. The thesis further uses the method to study I/O interference and shows that file access patterns are a significant factor in determining the interference potential of an application. This thesis also presents a technique to estimate the impact of external influences on an application run. The technique introduces the concept of intrinsic performance characteristics to cluster similar application execution segments. Anomalies in the cluster are the result of external interference. An evaluation with several benchmarks shows high accuracy in estimating the impact of interference from a single application run. The contributions of this thesis will help establish interference trends and devise interference mitigation techniques. Similarly, estimating the impact of external interference will restore user expectations and help performance analysts separate application performance from external influence.
title: Manganoxide als Katalysator für die alkalische Sauerstoffentwicklungsreaktion
Creators: name: Connor, Paula
Publisher: name: UNSPECIFIED
Year: 2020

description: Mangan spielt eine Schlüsselrolle in der Natur bei der Sauerstoffentwicklungsreaktion im Photosystem II. Durch diese Rolle stieg das Forschungsinteresse an Manganoxiden als Katalysator in den letzten Dekaden. In dieser Arbeit wurden zwei unterschiedliche Manganoxide (MnO und MnO2) für den Einsatz als Katalysator für die Sauerstoffentwicklungsreaktion untersucht. Dabei lag der Fokus vor allem auf den Veränderungen an der Katalysatoroberfläche während der elektrochemischen Messungen und auf der Anpassung des Manganoxides an das darunterliegende Substrat. Für diese Untersuchungen wurden dünne Schichten mittels reaktiver Kathodenzerstäubung auf unterschiedlichen Substraten präpariert und anschließend mittels XPS, Raman und EIS Messungen analysiert.
title: Wissen und lokale Entscheidungsrationalität. Eine Analyse kommunaler Strategien am Beispiel energetischer Gebäudesanierung in deutschen Großstädten
Creators: name: Hofmann, Marina
Publisher: name: UNSPECIFIED
Year: 2020

description: Die Arbeit befasst sich mit dem Zusammenhang, wie sich handlungsleitendes Wissen in Entscheidungen niederschlägt. Im städtischen Kontext werden Entscheidungen trotz nahezu gleicher Rahmenbedingungen unterschiedlich getroffen. Aus der Politik- und Stadtforschung ist das Konzept der Wissensordnung bekannt, welches Unterschiede in der Praxis berücksichtigen und erklären kann. Die Arbeit prüft das Konzept der Wissensordnung vor einem ökonomischen Hintergrund und belegt die Bedeutung einer wissensbasierten Entscheidungsfindung als Erkenntnisobjekt anhand des deutschen Klimaschutzes im Gebäudesektor.
Birational motives, I: pure birational motives
Creators: name: Kahn, Bruno
name: Sujatha, R.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14C15, 14E05

description: This is a considerably expanded version of the "pure" part of our 2002 preprint. We define a category of pure birational motives over a field, depending on the choice of an adequate equivalence relation on algebraic cycles. It is obtained by "killing" the Lefschetz motive in the corresponding category of effective motives. For rational equivalence, it encompasses Bloch's decomposition of the diagonal. We study the induced Chow-Künneth decompositions in this category, and establish relationships with Rost's cycle modules and the Albanese functor for smooth projective varieties.
description: Correction in proof of Th. 2.4.1; to appear in Annals of K-theory
Supplementary document for Development of a Dual-Modal Microscopic Algae Detection System Integrating Hyperspectral Imaging and U-Net convolutional neural network - 7303285.pdf
Creators: name: Wang, Han
name: Zhang, YuNing
name: Hou, Shuaiyu
name: Chen, Yu
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Uncategorized

description: Methods and analysis for microfluidic chip fabrication and optical characterization of algae, including chip design, spectroscopic data, and fluorescence imaging results.
Fast Large Volume Simulations of the 21 cm Signal from the Reionization and pre-Reionization Epochs
Creators: name: Santos, M. G.
name: Ferramacho, L.
name: Silva, M. B.
name: Amblard, A.
name: Cooray, A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: While limited to low spatial resolution, the next generation low-frequency radio interferometers that target 21 cm observations during the era of reionization and prior will have instantaneous fields-of-view that are many tens of square degrees on the sky. Predictions related to various statistical measurements of the 21 cm brightness temperature must then be pursued with numerical simulations of reionization with correspondingly large volume box sizes, of order 1000 Mpc on one side. We pursue a semi-numerical scheme to simulate the 21 cm signal during and prior to Reionization by extending a hybrid approach where simulations are performed by first laying down the linear dark matter density field, accounting for the non-linear evolution of the density field based on second-order linear perturbation theory as specified by the Zel'dovich approximation, and then specifying the location and mass of collapsed dark matter halos using the excursion-set formalism. The location of ionizing sources and the time evolving distribution of ionization field is also specified using an excursion-set algorithm. We account for the brightness temperature evolution through the coupling between spin and gas temperature due to collisions, radiative coupling in the presence of Lyman-alpha photons and heating of the intergalactic medium, such as due to a background of X-ray photons. The hybrid simulation method we present is capable of producing the required large volume simulations with adequate resolution in a reasonable time so a large number of realizations can be obtained with variations in assumptions related to astrophysics and background cosmology that govern the 21 cm signal.
description: 14 pages and 15 figures. New version to match accepted version for MNRAS. Code available in: http://www.SimFast21.org
Superexchange-Driven Magnetoelectricity in Magnetic Vortices
Creators: name: Delaney, Kris T.
name: Mostovoy, Maxim
name: Spaldin, Nicola A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We demonstrate that magnetic vortices in which spins are coupled to polar lattice distortions via superexchange exhibit an unusually large linear magnetoelectric response. We show that the periodic arrays of vortices formed by frustrated spins on Kagomé lattices provide a realization of this concept; our {\it ab initio} calculations for such a model structure yield a magnetoelectric coefficient that is 30 times larger than that of prototypical single phase magnetoelectrics. Finally, we identify the design rules required to obtain such a response in a practical material.
description: 5 pages, 6 figures
Full Boltzmann equations for leptogenesis including scattering
Creators: name: Hahn-Woernle, F.
name: Plumacher, M.
name: Wong, Y. Y. Y.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the evolution of a cosmological baryon asymmetry produced via leptogenesis by means of the full classical Boltzmann equations, without the assumption of kinetic equilibrium and including all quantum statistical factors. Beginning with the full mode equations we derive the usual equations of motion for the right-handed neutrino number density and integrated lepton asymmetry, and show explicitly the impact of each assumption on these quantities. For the first time, we investigate also the effects of scattering of the right-handed neutrino with the top quark to leading order in the Yukawa couplings by means of the full Boltzmann equations. We find that in our full Boltzmann treatment the final lepton asymmetry can be suppressed by as much as a factor of 1.5 in the weak wash-out regime (K<1), compared to the usual integrated approach which assumes kinetic equilibrium and neglects quantum statistics. This suppression is in contrast with the enhancement seen in some previous studies that considered only decay and inverse decay of the right-handed neutrino. However, this suppression quickly decreases as we increase K. In the strong wash-out regime (K>1), the full Boltzmann treatment and the integrated approach give nearly identical final lepton asymmetries (within 10 % of each other at K>3). Finally, we show that the opposing effects of quantum statistics on decays/inverse decays and the scattering processes tend to reduce the net importance of scattering on leptogenesis in the full treatment compared to the integrated approach.
description: 39 pages, 8 figures, typos corrected, replaced to match published version
A study of the agrarian policy of the T'ai-p'ing t'ien-kuo
Creators: name: Ohanjanian, Aram Haig
Publisher: name: University of British Columbia
Year: 2011

description: The purposes of this thesis are to present a study of the agrarian policy of the Taipings as enunciated in the "Land System of the Heavenly Dynasty", to trace, through events during the existence of the T'ai-p'ing t'ien-kuo, salient attitudes toward the agrarian policy and to suggest, so far as possible, the degree to which the policy was successful. To accomplish these purposes in Chapter I and II, I have briefly discussed the ideological sources of the "Land System" - its origin, its nature and its sociological implications. Because there is neither a complete nor satisfactory translation of this document I have included my own translation of it. In Chapter III, I undertake to follow the course of the agrarian policy as it developed and changed during the period of the rebellion. Included in this section are descriptions of these shifts, while possible reasons for their occurrence are also offered. Because there are no Taiping documents dealing in detail with their overall economic policy during the early stages of the rebellion I have included a translation of Chapter 10 of Tsei-ch'ing hui-tsuan, by Chang Te-chien, a contemporary. As a study of the views of mainland Chinese and Soviet historians reveals considerable divergence of opinion on the implementation and intention of the agrarian policy I have included in Chaper V a survey of some of these views.
Numerical Solution of the Dynamic Programming Equation for the Optimal Control of Quantum Spin Systems
Creators: name: Sridharan, Srinivas
name: James, Matthew R.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: Optimization and Control (math.OC)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The purpose of this paper is to describe the numerical solution of the Hamilton-Jacobi-Bellman (HJB) for an optimal control problem for quantum spin systems. This HJB equation is a first order nonlinear partial differential equation defined on a Lie group. We employ recent extensions of the theory of viscosity solutions from Euclidean space to Riemannian manifolds to interpret possibly non-differentiable solutions to this equation. Results from differential topology on the triangulation of manifolds are then used to develop a finite difference approximation method, which is shown to converge using viscosity solution techniques. An example is provided to illustrate the method.
description: 11 pages, 5 figures
Theoretical Levels of Control as a Function of Mean Temperature and Spray Efficacy in the Aerial Spraying of Tsetse Fly
Creators: name: Childs, S. J.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: The hypothetical impact of aerial spraying on tsetse fly populations is investigated. Spray cycles are scheduled at intervals two days short of the first interlarval period and halted once the last of the female flies that originated from pre-spray-deposited pupae have been sprayed twice. The effect of temperature on the aerial spraying of tsetse, through its reproductive cycle and general population dynamics, is of particular interest, given that cooler weather is preferred for the settling of insecticidal droplets. Spray efficacy is found to come at a price due to the greater number of cycles necessitated by cooler weather. The extra cost is argued to be worth while. Pupae, still in the ground at the end of spraying, are identified as the main threat to a successful operation. They are slightly more vulnerable at the low temperature extreme of tsetse habitat (16 $^\circ$C), when the cumulative, natural pupal mortality is high. One can otherwise base one's expectations on the closeness with which the time to the third last spray approaches one puparial duration. A disparity of anything close to the length of a spray cycle advocates caution, whereas one which comes close to vanishing should be interpreted as being auspicious. Three such key temperatures, just below which one can anticipate an improved outcome and just above which caution should be exercised, are 17.146 $^\circ$C, 19.278 $^\circ$C and 23.645 $^\circ$C. A refinement of the existing formulae for the puparial duration and the first interlarval period might be prudent in the South African context of a sympatric Glossina brevipalpis-G. austeni, tsetse population. The resulting aerial spraying strategy would then be formulated using a G. brevipalpis puparial duration and a G. austeni first interlarval period.
description: 31 pages, 10 figures
Australian Public Opinion Poll # 174
Creators: name: Australian Public Opinion Polls
Publisher: name: Roper Center for Public Opinion Research
Year: 2020

description: Bakery bread (1); decimal coins (1); bikini swimsuits (1); science grant (1); church union (1); Senate election (2); political speeches (1); airlines (1); ombudsmen (1); Indonesia and Malaysia (1); China and United Nations (2).
Generationen, Generationenbeziehungen, Generationenpolitik. Ein mehrsprachiges Kompendium - Edition 2017 [Generations, intergenerational relationships, generational policy: A multilingual compendium - Edition 2017]
Creators: name: Bjursell, Cecilia
name: Widmer, Eric D.
name: Sánchez, Mariano
name: Renzi, Marta
name: Viry, Gil
name: de Salles Oliveira, Paulo
name: Rapolienė, Gražina
name: Canatan, Ayşe
name: Hoff, Andreas
name: Veress, Enikő
name: Oğlak, Sema
name: Boström, Ann-Kristin
name: Neményi, Ágnes
name: Mikulionienė, Sarmitė
name: Lüscher, Kurt
name: Ivashchenko, Olga
name: Shipovskaya, Valentina
name: Gavranović, Nedim
name: Svetelšek, Ajda
name: Vujović, Ana
name: Lin, Qing
name: Wang, Xiying
name: Klimczuk, Andrzej
name: Lamura, Giovanni
Publisher: name: Zenodo
Year: 2017

description: K. Lüscher, A. Klimczuk (eds.), Generations, intergenerational relationships, generational policy: A multilingual compendium (Pokolenia, relacje miedzypokoleniowe, polityka relacji miedzypokoleniowych. Kompendium wielojezyczne), 17 languages, Universität Konstanz, Konstanz 2017, 428pp.
Thermodynamics of a three-flavor nonlocal Polyakov--Nambu--Jona-Lasinio model
Creators: name: Hell, T.
name: Rößner, S.
name: Cristoforetti, M.
name: Weise, W.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The present work generalizes a nonlocal version of the Polyakov loop-extended Nambu and Jona-Lasinio (PNJL) model to the case of three active quark flavors, with inclusion of the axial U(1) anomaly. Gluon dynamics is incorporated through a gluonic background field, expressed in terms of the Polyakov loop. The thermodynamics of the nonlocal PNJL model accounts for both chiral and deconfinement transitions. Our results obtained in mean-field approximation are compared to lattice QCD results for $N_\text{f}=2+1$ quark flavors. Additional pionic and kaonic contributions to the pressure are calculated in random phase approximation. Finally, this nonlocal 3-flavor PNJL model is applied to the finite density region of the QCD phase diagram. It is confirmed that the existence and location of a critical point in this phase diagram depends sensitively on the strength of the axial U(1) breaking interaction.
description: 31 pages, 15 figures, minor changes compared to v1
The first campaigns in Spain
Creators: name: Kerr, Mary Elizabeth
Publisher: name: University of British Columbia
Year: 2011

description: This thesis considers one theatre of the Second Punic War for a limited number of years. The period of the Spanish theatre extends from the beginning of Hannibal's career in 221 B.C. until the deaths of Gnaeus and Publius Scipio in 211 B.C. The following chronology is adopted: 237 - Hamilcar begins the reconquest of Spain. 231 - A Roman embassy visits Hamilcar; an agreement is reached between Saguntum and Rome. 229 - Hamilcar dies; Hasdrubal acclaimed commander. 226 - The Ebro treaty. 222/221- Hasdrubal murdered; Hannibal new leader in Spain. 220 - Roman political intervention at Saguntum. 219 - Hannibal attacks and captures Saguntum. 218 - War declared between Rome and Carthage. 218 - Hannibal marches overland from New Carthage to northern Italy. Publius to Spain to meet Hannibal; turns back at Rhone River; sends Gnaeus and troops to Spain. 217 - Romans victorious at sea off mouth of Ebro. Publius’ command in Spain extended; Romans obtain hostages from Saguntum. 216 - Hasdrubal occupied in south; minor Roman advances south of Ebro. 215 - Siege of Ibera. 214 - Romans recover Saguntum. 213-211- Gradual Roman advance into Carthaginian territory. 211 - Death of Scipios; retreat of Romans to Ebro River.
Electronic structure of ferromagnetic semiconductor Ga1-xMnxAs probed by sub-gap magneto-optical spectroscopy
Creators: name: Acbas, G.
name: Kim, M. -H.
name: Cukr, M.
name: Novak, V.
name: Scarpulla, M. A.
name: Dubon, O. D.
name: Jungwirth, T.
name: Sinova, Jairo
name: Cerne, J.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We employ Faraday and Kerr effect spectroscopy in the infrared range to investigate the electronic structure of Ga1-xMnxAs near the Fermi energy. The band structure of this archetypical dilute-moment ferromagnetic semiconductor has been a matter of controversy, fueled partly by previous measurements of the unpolarized infrared absorption and their phenomenological impurity-band interpretation. The infrared magneto-optical effects we study arise directly from the spin-splitting of the carrier bands and their chiral asymmetry due to spin-orbit coupling. Unlike the unpolarized absorption, they are intimately related to ferromagnetism and their interpretation is much more microscopically constrained in terms of the orbital character of the relevant band states. We show that the conventional theory of the disordered valence band with dominant As p-orbital character and coupled by kinetic-exchange to Mn local moments accounts semi-quantitatively for the overall characteristics of the measured infrared magneto-optical spectra.
description: 4 pages 3 figures
Pokolenia, relacje międzypokoleniowe, polityka relacji międzypokoleniowych. Wielojęzyczne kompendium - Edycja 2017
Creators: name: Bjursell, Cecilia
name: Sánchez, Mariano
name: Renzi, Marta
name: Viry, Gil
name: de Salles Oliveira, Paulo
name: Rapolienė, Gražina
name: Canatan, Ayşe
name: Hoff, Andreas
name: Veress, Enikő
name: Oğlak, Sema
name: Boström, Ann-Kristin
name: Neményi, Ágnes
name: Mikulionienė, Sarmitė
name: Lüscher, Kurt
name: Ivashchenko, Olga
name: Shipovskaya, Valentina
name: Gavranović, Nedim
name: Svetelšek, Ajda
name: Vujović, Ana
name: Lin, Qing
name: Wang, Xiying
name: Klimczuk, Andrzej
name: Widmer, Eric
name: Lamura, Giovanni
Publisher: name: Zenodo
Year: 2017

description: K. Lüscher, A. Klimczuk (eds.), Generations, intergenerational relationships, generational policy: A multilingual compendium (Pokolenia, relacje miedzypokoleniowe, polityka relacji miedzypokoleniowych. Kompendium wielojezyczne), 17 languages, Universität Konstanz, Konstanz 2017, 428pp.
Mueller Navelet jets at LHC - complete NLL BFKL calculation
Creators: name: Colferai, D.
name: Schwennsen, F.
name: Szymanowski, L.
name: Wallon, S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We calculate cross section and azimuthal decorrellation of Mueller Navelet jets at the LHC in the complete next-lo-leading order BFKL framework, i.e. including next-to-leading corrections to the Green's function as well as next-to-leading corrections to the Mueller Navelet vertices. The obtained results for standard observables proposed for studies of Mueller Navelet jets show that both sources of corrections are of equal, big importance for final magnitude and final behavior of observables. The astonishing conclusion of our analysis is that the observables obtained within the complete next-lo-leading order BFKL framework of the present paper are quite similar to the same observables obtained within next-to-leading logarithm DGLAP type treatment. This fact sheds doubts on general belief that the studies of Mueller Navelet jets at the LHC will lead to clear discrimination between the BFKL and the DGLAP dynamics.
description: 65 pages, 51 figures; Version accepted at JHEP
A general stability criterion for switched linear systems having stable and unstable subsystems
Creators: name: Martin, Jesus San
name: O'Farrell, Anthony G.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: We report conditions on a switching signal that guarantee that solutions of a switched linear systems converge asymptotically to zero. These conditions are apply to continuous, discrete-time and hybrid switched linear systems, both those having stable subsystems and mixtures of stable and unstable subsystems.
Studies on the mechanisms of phosphorylase activation
Creators: name: Harwood, James Percival
Publisher: name: University of British Columbia
Year: 2011

description: The effects of epinephrine and electrical stimulation on the activation of glycogen phosphorylase were studied in isolated rat diaphragm and frog sartorius, and rat gastrocnemius in vivo. The resting ratio of phosphorylase, as expressed by the ratio of phosphorylase a to total phosphorylase (-AMP/+AMP ratio) was found to be low of the order of 0.05 in diaphragm and sartorius. In rat gastrocnemius this value was high at 0.26. As measured by the ratio of activity at pH 6.8 to that at pH 8.2 (pH 6.8/8.2 ratio), phosphorylase kinase was essentially in its inactive form under conditions of no stimulation. On treatment with epinephrine, phosphorylase was activated, and there was a significant increase in the activity ratio for phosphorylase kinase, up to 10-fold, indicating that conversion of nonactivated kinase to its activated form had occurred. Epinephrine also produced marked increases, up to 15-fold, in the tissue levels of adenosine 31, 51-monophosphate (cyclic AMP). When muscle was induced to contract by electrical stimulation, phosphorylase was markedly and rapidly activated. In contrast to the effect of epinephrine, electrical stimulation produced no conversion of phosphorylase kinase to its activated form as measured by the pH 6.8/8.2 ratio. This was found for both direct and neural stimulation, at various frequencies, for different times of stimulation, in vitro and in vivo, and in two species. No increase in the tissue levels of cyclic AMP were detected on electrical stimulation. It was concluded that the mechanism of activation of phosphorylase during electrical stimulation is basically different from that produced by adrenergic amines. The data strongly suggests that during muscle contraction phosphorylase is activated by a mechanism which does not involve conversion of phosphorylase kinase to its activated form. In further work, the relationship between phosphorylase activation and muscle contraction was studied. It was found that for any given frequency of stimulation, phosphorylase was activated within 2 sec to a particular ratio for that frequency. On further stimulation, the ratio did not increase. When the temperature was lowered, the steady state phosphorylase ratio for a given frequency was lowered, but activation still occurred rapidly. In experiments in which calcium was removed from the medium by using chelating agents, a correlation was demonstrated between phosphorylase activation and contractile tension. From these results it appears that the mechanism of phosphorylase activation is closely coupled to the contractile mechanism. It is proposed that calcium ion, which is important in excitation-contraction coupling and tension development, is responsible for phosphorylase activation. It is further suggested that calcium ion released into the myoplasm may act with nonactivated phosphorylase kinase to catalyse the conversion of phosphorylase b to phosphorylase a.
Покоління , Міжгенераційні Відносини, Політика Міжгенераційних Відносин. Багатомовний Компендіум - Edition 2017
Creators: name: Bjursell, Cecilia
name: Widmer, Eric D.
name: Sánchez, Mariano
name: Renzi, Marta
name: Viry, Gil
name: de Salles Oliveira, Paulo
name: Rapolienė, Gražina
name: Canatan, Ayşe
name: Hoff, Andreas
name: Veress, Enikő
name: Oğlak, Sema
name: Boström, Ann-Kristin
name: Neményi, Ágnes
name: Mikulionienė, Sarmitė
name: Lüscher, Kurt
name: Ivashchenko, Olga
name: Shipovskaya, Valentina
name: Gavranović, Nedim
name: Svetelšek, Ajda
name: Vujović, Ana
name: Lin, Qing
name: Wang, Xiying
name: Klimczuk, Andrzej
name: Lamura, Giovanni
Publisher: name: Zenodo
Year: 2017

description: K. Lüscher, A. Klimczuk (eds.), Generations, intergenerational relationships, generational policy: A multilingual compendium (Pokolenia, relacje miedzypokoleniowe, polityka relacji miedzypokoleniowych. Kompendium wielojezyczne), 17 languages, Universität Konstanz, Konstanz 2017, 428pp.
A re--analysis of the iron line in the XMM-Newton data from the low/hard state in GX339--4
Creators: name: Done, Chris
name: Trigo, Maria Diaz
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The detection of an extremely broad iron line in XMM-Newton MOS data from the low/hard state of the black hole binary GX339-4 is the only piece of evidence which unambiguously conflicts with the otherwise extremely successful truncated disc interpretation of this state. However, it also conflicts with some aspect of observational data for all other alternative geometries of the low/hard state, including jet models, making it very difficult to understand. We re-analyse these data and show that they are strongly affected by pileup even with extensive centroid removal as the source is ~200x brighter than the recommended maximum countrate. Instead, we extract the simultaneous PN timing mode data which should not be affected by pileup. These show a line which is significantly narrower than in the MOS data. Thus these data are easily consistent with a truncated disc, and indeed, strongly support such an interpretation.
description: accepted in MNRAS, added table of fit results
Image of a shift map along the orbits of a flow
Creators: name: Maksymenko, Sergiy
Publisher: name: arXiv
Year: 2009
Subjects: subject: Dynamical Systems (math.DS)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 37C10

description: Let $(F_t)$ be a smooth flow on a smooth manifold $M$ and $h:M\to M$ be a smooth orbit preserving map. The following problem is studied: suppose that for every point $z$ of $M$ there exists a germ of a smooth function $f_z$ at $z$ such that near $z$ we have that $h(x)=F_{f_z(x)}(x)$. Can the functions $(f_z)$ be glued together to give a smooth function on all of $M$? This question is closely related to reparametrizations of flows. We describe a large class of flows for which the above problem can be resolved, and show that they have the following property: any smooth flow $(G_t)$ whose orbits coincides with the ones of $(F_t)$ is obtained from $(F_t)$ by smooth reparametrization of time. The proof of our principal statement uses results of D. Hoffman and L. N. Mann about diameters of effective actions of Lie grous of Riemannian manifolds.
description: Version 2. 39 pages, 5 figures. The text of the paper is essentially rewritten. All the exposition is clarified
Interlacing of positive real zeros of Bessel functions
Creators: name: Palmai, Tamas
name: Apagyi, Barnabas
Publisher: name: arXiv
Year: 2010
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 33C10

description: We unify the three distinct inequality sequences (Abramowitz ans Stegun (1972) [1,9.5.2]) of positive real zeros of Bessel functions into a single one.
description: 4 pages
Modele 'srebrnej gospodarki' w Unii Europejskiej w ujęciu porównawczym. Próba wprowadzenia do dyskusji ('Silver Economy' Models in the European Union in the Comparative Approach: An Attempt to Introduce Discussion)
Creators: name: Klimczuk, Andrzej
Publisher: name: Zenodo
Year: 2016

description: Jednym ze zjawisk związanych z procesem starzenia się społeczeństw są przemiany systemów gospodarczych zorientowane na produkcję i dystrybucję dóbr i usług dla osób starszych, jak również dla młodszych grup wiekowych w ramach ich przygotowania do starości. Artykuł przybliża główne cechy koncepcji "srebrnej gospodarki" w kontekście realizacji polityki aktywnego starzenia się. Opracowanie przedstawia typologię modeli srebrnej gospodarki w krajach Unii Europejskiej na poziomach krajowym i regionalnym na podstawie wykorzystania porównań indeksu aktywnego starzenia się (Active Ageing Index) do typologii zróżnicowań i kultur kapitalizmu oraz typologii państw dobrobytu. W podsumowaniu przybliżono wnioski dla działań praktycznych oraz propozycje dalszych kierunków badań. ** Some phenomena associated with ageing populations are transition of economies to focus more on the production and distribution of goods and services for older adults as well as for younger age groups as part of their preparation for old age. The paper presents the main features of the concept of "silver economy" in the context of active ageing policies. The study presents a typology of the silver economy models in the European Union at national and regional levels based on the use of the Active Ageing Index in comparison to the typology of differences and cultures of capitalism as well as the typology of welfare states. The summary contains conclusions for practical interventions and proposals for further research.
On the Corporate Votes and their relation with Daisy Models
Creators: name: Hernández-Saldaña, H.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: The distribution of votes of one of the corporate parties in Mexico during elections of 2000, 2003 and 2006 is analyzed. After proper normalization and unfolding the agreement of the votes distributions with those of daisy models of several ranks is good. These models are generated by retaining each $r+1$ level in a sequence which follows a Poisson distribution.Beyond the fact that rank 2 daisy model resembles the distribution of the quasi-optimal distances for the Traveling Salesman Problem no clear explanation exists for this behavior, but the agreement is not fortuitous and the possibility of a universal phenomena for corporate vote is discussed.
description: To be send to Phys. Rev. E. 4 pages. 3 color figures. Unfolding procedure explained
Bright and Dark Helices of Light
Creators: name: Steuernagel, Ole
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Laser beams can be made to form bright and dark intensity helices of light. Such helices have a pitch length on the order of a wavelength and may have applications in lithography and the manipulation of particles through optical forces. The formation of bright helices is more strongly constrained by optical resolution limits than that of dark helices, corresponding scaling laws are derived and their relevance for photo-lithography pointed out. It is shown how to arrange dark helices on a grid in massively parallel fashion in order to create handed materials using photo-lithographic techniques.
description: 9 pages, 5 figures
Pentamethylcyclopentadienyl iron thiocarboxylato complexes: synthetic and characterization study
Creators: name: El-khateeb, Mohammad
name: Yousuf, Sammer
name: Kumar, Rajesh
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
subject: Physical Sciences not elsewhere classified
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified

description: Pentamethylcyclopentadienyldicarbonyl iron thiocarboxylato complexes Cp*Fe(CO)2SCOR {Cp* = C5Me5, R = Me (2a), Ph (2b), C4H3O (2c), C4H3S (2d), CH2CH2COCl (2e)} are synthesized from the reaction of Cp*Fe(CO)2SH (1) with the corresponding chloride acids. Complex 1 is obtained from the treatment of [Cp*Fe(CO)2]2 with elemental sulfur (S8) followed by hydrolysis on silica. The hydrolysis of 2e with trace amount of water gave the corresponding acid derivative Cp*Fe(CO)2SCOCH2CH2COOH (3). All new complexes have been characterized by IR, 1H NMR spectroscopy and elemental analysis. The solid state structures of 1 and 3 are confirmed by X-ray analysis.
A 3.5mm Polarimetric Survey of Radio-loud Active Galactic Nuclei
Creators: name: Agudo, I.
name: Thum, C.
name: Wiesemeyer, H.
name: Krichbaum, T. P.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present the results from the first large (>100 source) 3.5 mm polarimetric survey of radio loud active galactic nuclei (AGN). The I, Q, U, and V Stokes parameter observations were performed with the XPOL polarimeter at the IRAM 30m Telescope. Our sample consists of 145 flat-radio-spectrum AGN with declination >-30 deg. (J2000.0) and flux density >~1Jy at 86GHz, as measured at the IRAM 30 m Telescope from 1978 to 1994. We detected linear and circular polarization (above 3 sigma levels of ~1.6%, and ~0.3%) for 76%, and 6% of the sample, respectively. We find a clear excess in degree of linear polarization detected at 86 GHz with regard to that at 15 GHz by a factor of ~2. Over our entire source sample, the luminosity of the jets is inversely proportional to the degree of linear polarization. Consistent with previous findings claiming larger Doppler factors for brighter gamma-ray blazars, quasars listed in our sample, and in the Fermi-LBAS catalog, show larger luminosities than non-LBAS ones, but our data do not allow us to confirm the same for BL Lac objects. We do not find a clear relation between the linear polarization angle and the jet structural position angle for any source class in our sample. We interpret this as the consequence of a markedly non-axisymmetric character of the 3 mm emitting region in the jets. We find that intrinsic circular polarization is the most likely mechanism for generation of the circular polarization detected in our observations. Our new data can be used to estimate the 3 mm AGN contribution to measurements of the linear polarization of the cosmic microwave background, such as those performed by the Planck satellite.
description: Published in the Astrophysical Journal Supplement Series. 25 pages, 2 tables & 13 figures
The dependence on the monodromy data of the isomonodromic tau function
Creators: name: Bertola, Marco
Publisher: name: arXiv
Year: 2009
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: [Note: important Corrigendum now available at arXiv:1601.04790] The isomonodromic tau function defined by Jimbo-Miwa-Ueno vanishes on the Malgrange's divisor of generalized monodromy data for which a vector bundle is nontrivial, or, which is the same, a certain Riemann-Hilbert problem has no solution. In their original work, Jimbo, Miwa, Ueno did not derive the dependence on the (generalized) monodromy data (i.e. monodromy representation and Stokes' parameters). We fill the gap by providing a (simpler and more general) description in which all the parameters of the problem (monodromy-changing and monodromy-preserving) are dealt with at the same level. We thus provide variational formulae for the isomonodromic tau function with respect to the (generalized) monodromy data. The construction applies more generally: given any (sufficiently well-behaved) family of Riemann-Hilbert problems (RHP) where the jump matrices depend arbitrarily on deformation parameters, we can construct a one-form Omega (not necessarily closed) on the deformation space (Malgrange's differential), defined off Malgrange's divisor. We then introduce the notion of discrete Schlesinger transformation: it means that we allow the solution of the RHP to have poles (or zeros) at prescribed point(s). Even if Omega is not closed, its difference evaluated along the original solution and the transformed one, is shown to be the logarithmic differential (on the deformation space) of a function. As a function of the position of the points of the Schlesinger transformation, yields a natural generalization of Sato formula for the Baker-Akhiezer vector even in the absence of a tau function, and it realizes the solution of the RHP as such BA vector. Some exemples (Painleve' II and finite Toplitz/Hankel determinants) are provided.
description: 34 pages, 7 figures. An important "Corrigendum" is now available as arXiv:1601.04790
{\it Ab initio} nuclear structure - the large sparse matrix eigenvalue problem
Creators: name: Vary, James P.
name: Maris, Pieter
name: Ng, Esmond
name: Yang, Chao
name: Sosonkina, Masha
Publisher: name: arXiv
Year: 2009
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The structure and reactions of light nuclei represent fundamental and formidable challenges for microscopic theory based on realistic strong interaction potentials. Several {\it ab initio} methods have now emerged that provide nearly exact solutions for some nuclear properties. The {\it ab initio} no core shell model (NCSM) and the no core full configuration (NCFC) method, frame this quantum many-particle problem as a large sparse matrix eigenvalue problem where one evaluates the Hamiltonian matrix in a basis space consisting of many-fermion Slater determinants and then solves for a set of the lowest eigenvalues and their associated eigenvectors. The resulting eigenvectors are employed to evaluate a set of experimental quantities to test the underlying potential. For fundamental problems of interest, the matrix dimension often exceeds $10^{10}$ and the number of nonzero matrix elements may saturate available storage on present-day leadership class facilities. We survey recent results and advances in solving this large sparse matrix eigenvalue problem. W also outline the challenges that lie ahead for achieving further breakthroughs in fundamental nuclear theory using these {\it ab initio} approaches.
description: SciDAC2009 invited paper; 10 pages and 10 figures
CFHTLS weak-lensing constraints on the neutrino masses
Creators: name: Tereno, Ismael
name: Schimd, Carlo
name: Uzan, Jean-Philippe
name: Kilbinger, Martin
name: Vincent, Frederic H.
name: Fu, Liping
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We use measurements of cosmic shear from CFHTLS, combined with WMAP-5 cosmic microwave background anisotropy data, baryonic acoustic oscillations from SDSS and 2dFGRS and supernovae data from SNLS and Gold-set, to constrain the neutrino mass. We obtain a 95% confidence level upper limit of 0.54 eV for the sum of the neutrino masses, and a lower limit of 0.03 eV. The preference for massive neutrinos vanishes when shear-measurement systematics are included in the analysis.
description: 10 pages. Published version
On the Principle of Equivalence
Creators: name: Fabbri, Luca
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the Principle of Equivalence along with Weyl theorem to discuss the interpretation of gravity as a geometric effect; we study what are the restrictions on the connections that must be required for this geometrization to occur in the most general case.
description: 8 pages
Quantum Coherence at Low Temperatures in Mesoscopic Systems: Effect of Disorder
Creators: name: Niimi, Yasuhiro
name: Baines, Yannick
name: Capron, Thibaut
name: Mailly, Dominique
name: Lo, Fang-Yuh
name: Wieck, Andreas D.
name: Meunier, Tristan
name: Saminadayar, Laurent
name: Bauerle, Christopher
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the disorder dependence of the phase coherence time of quasi one-dimensional wires and two-dimensional (2D) Hall bars fabricated from a high mobility GaAs/AlGaAs heterostructure. Using an original ion implantation technique, we can tune the intrinsic disorder felt by the 2D electron gas and continuously vary the system from the semi-ballistic regime to the localized one. In the diffusive regime, the phase coherence time follows a power law as a function of diffusion coefficient as expected in the Fermi liquid theory, without any sign of low temperature saturation. Surprisingly, in the semi-ballistic regime, it becomes independent of the diffusion coefficient. In the strongly localized regime we find a diverging phase coherence time with decreasing temperature, however, with a smaller exponent compared to the weakly localized regime.
description: 21 pages, 30 figures
Phenomenological Analysis of $pp$ and $\bar{p}p$ Elastic Scattering Based on Theoretical Bounds in High-Energy Physics
Creators: name: Campos, S. D.
name: Okorokov, V. A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Considering the Froissart-Martin bound, Jin-Martin-Cornille bound and the optical theorem, we propose a novel parametrization for the total cross-section of proton-proton and antiproton-proton elastic scattering data. Using derivative dispersion relations we obtain the real part of the elastic scattering amplitude and thus the $ρ$ parameter. Simultaneous fits to $σ_{tot}$ and $ρ$ are performed allowing very good statistical descriptions of the available data. Furthermore, predictions to $σ_{tot}$ and $ρ$ at energies not used in the fit procedures are presented. For $σ_{tot}$ we obtain predictions at RHIC, LHC and future HC energies.
description: 22 pages, 7 figures and 11 tables. We corrected some formulas and results of the fitting procedure. This work present intermediate steps and results that are not shown in the published version
The evolution of regional planning and government in the province of Ontario
Creators: name: Kidnie, Janet Lynn
Publisher: name: University of British Columbia
Year: 2011

description: The move toward establishing regional government in Ontario reflects the recognition by both local and provincial governments of the inadequacies of the present governmental structure to deal with development issues of a regional nature. The requirements of a rapidly urbanizing and growing population are those whose discussion and provision is most efficiently made by a form of government larger than the existing municipality and smaller than the provincial government. The hypothesis states that altering the provincial departmental organization is a necessary prerequisite to successful establishment of the planning function within the regional government. It is based on the argument that with the creation of regional government throughout the province, the existing operational framework of the departmental organization of the provincial government is not sufficiently coordinated to deal with planning issues for regional development. To defend the argument, documentation and analysis is made of the development of both local and provincial government. This gives a back ground upon which to establish how and why there may be problems in coordinating the implementation of planning policy for regional development and to make suggestions of possible changes.