cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Innovations in athlete monitoring and interventions with applications in non-functional overreaching
Creators: name: Perrotta, Andrew Scott
Publisher: name: University of British Columbia
Year: 2017

description: Background: The monitoring of an athlete’s training load and cardiac function have demonstrated to be valuable assessment tools in individual sporting events. Additionally, short-term heat acclimation has shown to be effective for stimulating hypervolemia and augmenting cardiovascular performance. A gap in the literature exists indicating further research is required into both heat acclimation protocols and the monitoring of on-field training load and its cause and effect relationship with heart rate variability in team sport. Purpose: The purpose of this investigation was twofold; 1) identify a novel form of heat acclimation using hot yoga for augmenting cardiovascular and aerobic performance, and 2) identify an effective monitoring protocol suitable for team sport using internal training load and heart rate variability. Methods: The Canadian Women’s National Field Hockey team were participants for examining heat acclimation and the relationship between training load and autonomic modulation during the 2016 Olympic cycle. A maximal graded exercise test was completed prior to and following six hot yoga sessions to examine cardiovascular and aerobic performance measures. Results: In Chapter 4, six days of hot yoga developed hypovolemia that lead to trivial improvements in aerobic power, run time to exhaustion, and a small increase in running speed at each ventilatory threshold. A non-existent relationship between markers of exercise stress and alterations in plasma volume during and post hot yoga were observed. Chapter 5 identified a large relationship between the planned and achieved on field training load over a complete mesocycle. Additionally, a moderate relationship was observed between both time spent above anaerobic threshold, training load and alterations in the Ln rMSSD:R-R ratio. Chapter 6 demonstrated how alterations in the Ln rMSSD outside of the coefficient of variation may identify the development of non-functional overreaching, while an unclear relationship was observed between weekly training load and alterations in Ln rMSSDCV. Conclusion: Hot yoga may elicit a delayed hypervolemic response when recommencing exercise. In addition, individually tailored mesocycles may prevent the development of non-functional overreaching when examined using heart rate variability while further research is required to confirm the Ln rMSSDCV relationship to accumulate weekly on-field training load in team sport.
High Quality, Transferable Graphene Grown on Single Crystal Cu(111) Thin Films on Basal-Plane Sapphire
Creators: name: Reddy, Kongara M.
name: Gledhill, Andrew D.
name: Chen, Chun-Hu
name: Drexler, Julie M.
name: Padture, Nitin P.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The current method of growing large-area graphene on Cu surfaces (polycrystalline foils and thin films) and its transfer to arbitrary substrates is technologically attractive. However, the quality of graphene can be improved significantly by growing it on single-crystal Cu surfaces. Here we show that high quality, large-area graphene can be grown on epitaxial single-crystal Cu(111) thin films on reusable basal-plane sapphire (alpha-Al2O3(0001)) substrates and then transferred to another substrate. While enabling graphene growth on Cu single-crystal surfaces, this method has the potential to avoid the high cost and extensive damage to graphene associated with sacrificing bulk single-crystal Cu during graphene transfer.
description: 10 pages, 3 figures
Identification of 331 quantum Hall states with Mach-Zehnder interferometry
Creators: name: Wang, Chenjie
name: Feldman, D. E.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: It has been shown recently that non-Abelian states and the spin-polarized and unpolarized versions of the Abelian 331 state may have identical signatures in Fabry-Pérot interferometry in the quantum Hall effect at filling factor 5/2. We calculate the Fano factor for the shot noise in a Mach-Zehnder interferometer in the 331 states and demonstrate that it differs from the Fano factor in the proposed non-Abelian states. The Fano factor depends periodically on the magnetic flux through the interferometer. Its maximal value is $2\times 1.4e$ for the 331 states with a symmetry between two flavors of quasiparticles. In the absence of such symmetry the Fano factor can reach $2\times 2.3e$. On the other hand, for the Pfaffian and anti-Pfaffian states the maximal Fano factor is $2\times 3.2e$. The period of the flux dependence of the Fano factor is one flux quantum. If only quasiparticles of one flavor can tunnel through the interferometer then the period drops to one half of the flux quantum. We also discuss transport signatures of a general Halperin state with the filling factor $2+k/(k+2)$.
description: 13 pages, 4 figures; Appendix on the states with the filling factor 2+k/(k+2) added
A multiplicative characterization of the power means
Creators: name: Leinster, Tom
Publisher: name: arXiv
Year: 2011
Subjects: subject: Functional Analysis (math.FA)
subject: Information Theory (cs.IT)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 26E60 (primary), 47A30, 52A21 (secondary)

description: A startlingly simple characterization of the p-norms has recently been found by Aubrun and Nechita (arXiv:1102.2618) and by Fernandez-Gonzalez, Palazuelos and Perez-Garcia. We deduce a simple characterization of the power means of order greater than or equal to 1.
description: 7 pages. Version 3: references added; minor edits
title: Access Based Services (ABS) in der Fashion-Industrie
title: Motive und Barrieren für die konsumentenseitige Nutzung
titleType: Subtitle
Creators: name: Auer, Ricarda
Publisher: name: FH CAMPUS 02 (CAMPUS 02 Fachhochschule der Wirtschaft)
Year: 2023
Subjects: subject: 658 Allgemeines Management

description: Die heutige Modeindustrie ist eine der verschwenderischsten Industrien, was zu einem globalen Anliegen beiträgt. Access Based Services für Kleidung zählen zu Geschäftsmodellen, die darauf abzielen, die Produktion und Entsorgung von Kleidung zu reduzieren, indem sie ihre Nutzung erhöhen und ihre Lebensdauer verlängern. Zweck: Der Zweck dieser Arbeit ist es Motive und Barrieren (Consumer Innovativeness, Nachhaltigkeit, Ökonomische Vorteile, Performance-Risiko und Psychologische Eigentümerschaft) hinsichtlich der konsumentenseitigen Nutzung (Verhaltensabsicht) von Access Based Services zu untersuchen. Methode: Um den Zweck zu erfüllen, wurde eine quantitative Untersuchung durchgeführt. Die Primärdaten wurden durch einen Online-Fragebogen erhoben, was zu 399 Antworten führte. Mithilfe der multiplen Regressionsanalyse konnten die oben genannten Motivatoren und Hindernisse getestet werden. Conclusio: Die Ergebnisse zeigen, dass verschiedene Faktoren die Entscheidungen von Verbraucher*innen bei der Nutzung von Access-Based Services in der Fashion-Industrie beeinflussen. Positive Einflussfaktoren sind Consumer Innovativeness sowie Nachhaltigkeit und ökonomische Vorteile. Demgegenüber stehen Barrieren wie das Performance-Risiko und die psychologische Eigentümerschaft.
description: Today's fashion industry is one of the most wasteful industries, contributing to a global concern. Access-based services for clothing are business models aimed at reducing the production and disposal of clothing by increasing their usage and extending their lifespan. Purpose: The purpose of this study is to examine motives and barriers (consumer innovativeness, sustainability, economic benefits, performance risk, and psychological ownership) with regards to consumer usage intention (behavioral intention) of access-based services. Method: To fulfill the purpose, a quantitative investigation was conducted. The primary data was collected through an online questionnaire, resulting in 399 responses. Multiple regression analysis was used to test the aforementioned motivators and barriers. Conclusion: The results show that various factors influence consumer decisions regarding the use of access-based services in the fashion industry. Positive influencing factors include consumer innovativeness as well as sustainability and economic benefits. In contrast, barriers include performance risk and psychological ownership.
Lorentz noninvariant oscillations of massless neutrinos are excluded
Creators: name: Barger, Vernon
name: Liao, Jiajun
name: Marfatia, Danny
name: Whisnant, Kerry
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The bicycle model of Lorentz noninvariant neutrino oscillations without neutrino masses naturally predicts maximal mixing and a 1/E dependence of the oscillation argument for muon-neutrino to tau-neutrino oscillations of atmospheric and long-baseline neutrinos, but cannot also simultaneously fit the data for solar neutrinos and KamLAND. Within the Standard Model Extension, we examine all 19 possible structures of the effective Hamiltonian for Lorentz noninvariant oscillations of massless neutrinos that naturally have a 1/E dependence at high neutrino energy. Due to the lack of any evidence for direction dependence, we consider only direction-independent oscillations. Although we find a number of models with a 1/E dependence for atmospheric and long-baseline neutrinos, none can also simultaneously fit solar and KamLAND data.
description: 32 pages, 11 Postscript figures. Version to appear in PRD
Neutrino constraints from future nearly all-sky spectroscopic galaxy surveys
Creators: name: Carbone, Carmelita
name: Verde, Licia
name: Wang, Yun
name: Cimatti, Andrea
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We examine whether future, nearly all-sky galaxy redshift surveys, in combination with CMB priors, will be able to detect the signature of the cosmic neutrino background and determine the absolute neutrino mass scale. We also consider what constraints can be imposed on the effective number of neutrino species. In particular we consider two spectroscopic strategies in the near-IR, the so-called "slitless" and "multi-slit" approaches, whose examples are given by future space-based galaxy surveys, as EUCLID for the slitless case, or SPACE, JEDI, and possibly WFIRST in the future, for the multi-slit case. We find that, in combination with Planck, these galaxy probes will be able to detect at better than 3--sigma level and measure the mass of cosmic neutrinos: a) in a cosmology-independent way, if the sum of neutrino masses is above 0.1 eV; b) assuming spatial flatness and that dark energy is a cosmological constant, otherwise. We find that the sensitivity of such surveys is well suited to span the entire range of neutrino masses allowed by neutrino oscillation experiments, and to yield a clear detection of non-zero neutrino mass. The detection of the cosmic relic neutrino background with cosmological experiments will be a spectacular confirmation of our model for the early Universe and a window into one of the oldest relic components of our Universe.
description: 33 pages, 5 tables, 8 figures, slight changes to match the accepted version, JCAP accepted
title: Sedimentary architecture and links to carbonate cementation in the Hibernia Formation, Hibernia Field, offshore Newfoundland
Creators: name: Acuna Uribe, Mateo
Publisher: name: Memorial University of Newfoundland
publisherIdentifier: https://ror.org/04haebc03
publisherIdentifierScheme: ROR
Year: 2024

description: Carbonate cements filling intergranular pores in siliciclastic reservoirs dramatically reduce porosity and permeability, representing baffles and flow barriers that impact reservoir performance and drilling operations. Understanding the origin and controls of carbonate cementation allows deciphering and predicting carbonate-cemented intervals in the reservoir stratigraphy. Sedimentologic and diagenetic studies of the Lower Cretaceous Hibernia Formation in the Jeanne d’Arc basin, Newfoundland, Canada, were performed to test links between carbonate cements, facies associations and sea-level fluctuations. The Lower Hibernia zone records the transition from a deltaic to an estuarine environment characterized by two regressive sequence boundaries and comprising fluvial, tidal-fluvial, and tidal facies associations. Petrographic analyses revealed three main pervasive carbonate cements: early calcite, early dolomite and late ferroan calcite. The δ18O (δ¹⁸Ocalcite= -7.6 to -4.2 ‰ VPDB; δ¹⁸Odolomite= -4.1 to -1.6 ‰ VPDB) and trace element geochemistry of calcite and dolomite suggest that parent fluids were influenced by mixing of marine-meteoric water under relatively reducing conditions at shallow depths. Dolomite cementation is linked with seawater retention within in sediments during sea level regressions and fluid expulsion due to compaction of the underlying shales. Conversely, calcite cements are associated with transgressions and an increased marine water flux into the recently deposited sediments. The percolation of acidic pore waters promoted the dissolution of early carbonate cements and the development of secondary porosity, predating ferroan calcite cementation. Finally, the common distribution of ferroan calcite in the overall stratigraphy, and depleted δ¹⁸O composition (δ¹⁸Oferroancalcite= -10.2 to -9.1 ‰ VPDB) and high Fe and Mn concentrations, suggests that ferroan calcite cementation occurred during early burial.
CoRoT light curves of RR Lyrae stars. CoRoT 101128793: long-term changes in the Blazhko effect and excitation of additional modes
Creators: name: Poretti, Ennio
name: Paparo, Margit
name: Deleuil, Magali
name: Chadid, Merieme
name: Kolenberg, Katrien
name: Szabo, Robert
name: Benko, Jozsef M.
name: Chapellier, Eric
name: Guggenberger, Elisabeth
name: Borgne, Jean-Francois Le
name: Rostagni, Florent
name: Trinquet, Herve
name: Auvergne, Michel
name: Baglin, Annie
name: Sarro, Luis M.
name: Weiss, Werner W.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The CoRoT (Convection, Rotation and planetary Transits) space mission provides a valuable opportunity to monitor stars with uninterrupted time sampling for up to 150 days at a time. The study of RR Lyrae stars, performed in the framework of the Additional Programmes belonging to the exoplanetary field, will particularly benefit from such dense, long-duration monitoring. The Blazhko effect in RR Lyrae stars is a long-standing, unsolved problem of stellar astrophysics. We used the CoRoT data of the new RR Lyrae variable CoRoT 101128793 (f0=2.119 c/d, P=0.4719296 d) to provide us with more detailed observational facts to understand the physical process behind the phenomenon. The CoRoT data were corrected for one jump and the long-term drift. We applied different period-finding techniques to the corrected timeseries to investigate amplitude and phase modulation. We detected 79 frequencies in the light curve of CoRoT 101128793. They have been identified as the main frequency f0, and its harmonics, two independent terms, the terms related to the Blazhko frequency, and several combination terms. A Blazhko frequency fB=0.056 c/d and a triplet structure around the fundamental radial mode and harmonics were detected, as well as a long-term variability of the Blazhko modulation. Indeed, the amplitude of the main oscillation is decreasing along the CoRoT survey. The Blazhko modulation is one of the smallest observed in RR Lyrae stars. Moreover, the additional modes f1=3.630 and f2=3.159 c/d are detected. Taking its ratio with the fundamental radial mode into account, the term f1 could be the identified as the second radial overtone. Detecting of these modes in horizontal branch stars is a new result obtained by CoRoT.
description: 13 pages, 2 figures, 2 long tables. Accepted for publication in A&A
Observable Gravity Waves From Supersymmetric Hybrid Inflation
Creators: name: Shafi, Qaisar
name: Wickman, Joshua R.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We identify models of supersymmetric hybrid inflation in which the tensor-to-scalar ratio, a canonical measure of gravity waves produced during inflation, can be as large as 0.03 or so, which will be tested by the Planck satellite experiment. The scalar spectral index lies within the WMAP one sigma bounds, while $|d n_s / d\ln k| \lesssim 0.01$.
description: (v1) 19 pages, 1 table, 3 figures. (v2) 20 pages; updated figures, included additional discussion, footnotes, and reference
Induced polarization at a paraelectric/superconducting interface
Creators: name: Haraldsen, J. T.
name: Trugman, S. A.
name: Balatsky, A. V.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We examine the modified electronic states at the interface between superconducting and ferro(para)-electric heterostructures. We find that electric polarization $P$ and superconducting $ψ$ order parameters can be significantly modified due to coupling through linear terms brought about by explicit symmetry breaking at the interface. Using an effective action and a Ginzburg-Landau formalism, we show that an interaction term linear in the electric polarization will modify the superconducting order parameter $ψ$ at the interface. This also produces modulation of a ferroelectric polarization. It is shown that a paraelectric-superconductor interaction will produce an interface-induced ferroelectric polarization.
description: 4 pages, 3 figures, Submitted to Phys. Rev. B
Hundegestützte lösungs- und kompetenzorientierte Beratung: Einsatzmöglichkeiten hundegestützter Interventionen in der lösungs- und kompetenzorientierten Sozialberatung
Creators: name: Staudenmann, Michaela
Publisher: name: Zenodo
Year: 2020

description: Die vorliegende Arbeit versteht sich als Annäherung an ein komplexes und vielseitiges Thema. Sie zielt darauf ab, einen Beitrag zu der Frage zu leisten, wie kreative Unterstützungsmöglichkeiten in der lösungs- und kompetenzorientierten Sozialberatung durch hundegestützte Interventionen ergänzt werden können. Zu diesem Zweck befasst sich die vorliegende Arbeit mit der bisher kaum diskutierten Frage, wie hundegestützte Interventionen in die lösungs- und kompetenzorientierte Sozialberatung mit Menschen mit einer Abhängigkeitserkrankung integriert werden können, um im Beratungsprozess unterstützend zu wirken. Nebst der Darstellung des lösungsorientierten Ansatzes und des Handlungskontextes der lösungs- und kompetenzorientierten Sozialberatung werden anhand einer Literaturrecherche Grundlagen der Mensch-Hund-Beziehung, mögliche Wirkfaktoren sowie Unterstützungsformen von hundegestützten Interventionen vorgestellt. Darüber hinaus werden theoretische Gemeinsamkeiten der Lösungsorientierung und der hundegestützten Interventionen herausgearbeitet, die zugleich die wechselseitige Anschlussfähigkeit dieser beiden Ansätze unterstreichen. Zudem werden in ausführlicher Weise verschiedene Vorschläge dafür erläutert, wie hundegestützte Interventionen in lösungsorientierten Methoden eingesetzt werden können. Die dabei gewonnenen Erkenntnisse zeigen, dass der Hund als triadische Ergänzung zur lösungs- und kompetenzorientierten Sozialberatung unter bestimmten Voraussetzungen genesungsfördernd unterstützend wirken kann. Eine zentrale Voraussetzung hierfür ist jedoch, dass der Einsatz des Hundes auf freiwilliger Basis geschieht und als zusätzliches Angebot in der lösungs- und kompetenzorientierten Sozialberatung dient.
description: + Code Diss LU: hslusa mas lko + Fussnote: Master-Arbeit MAS Lösungs- und Kompetenzorientierung, Hochschule Luzern – Soziale Arbeit, 2020 + NL-Code: NLLUHSA202012
Theoretical constraints on the couplings of non-exotic minimal $Z'$ bosons
Creators: name: Basso, Lorenzo
name: Moretti, Stefano
name: Pruna, Giovanni Marco
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We have combined perturbative unitarity and renormalisation group equation arguments in order to find a dynamical way to constrain the space of the gauge couplings ($g'_1$, $\widetilde{g}$) of the so-called "Minimal $Z'$ Models". We have analysed the role of the gauge couplings evolution in the perturbative stability of the two-to-two body scattering amplitudes of the vector and scalar sectors of these models and we have shown that perturbative unitarity imposes an upper bound that is generally stronger than the triviality constraint. We have also demonstrated how this method quantitatively refines the usual triviality bound in the case of benchmark scenarios such as the $U(1)_χ$, the $U(1)_R$ or the "pure" $U(1)_{B-L}$ extension of the Standard Model. Finally, a description of the underlying model structure in Feynman gauge is provided.
description: 25 pages, 2 figures; bibliography updated, comments added on Section III
Data Publication Workshop: Taking your data from the lab to the journal
Creators: name: Beltrán, Mercedes
name: Constantin, Maria
Publisher: name: Zenodo
Year: 2023

description: This deposit contains the slides used during the workshop Data Publication: Taking your data from the lab to the journal provided by Utrecht University's Faculty of Science. 
As part of the workshop materials also see Overview of Research Data Sharing Policies Across Various Scientific Publishers (zenodo.org)
The Rest Frame Ultraviolet Spectra of UV-Selected Active Galactic Nuclei at z ~ 2-3
Creators: name: Hainline, Kevin N.
name: Shapley, Alice E.
name: Greene, Jenny E.
name: Steidel, Charles C.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present new results for a sample of 33 narrow-lined UV-selected active galactic nuclei (AGNs), identified in the course of a spectroscopic survey for star-forming galaxies at z ~ 2-3. The rest-frame UV composite spectrum for our AGN sample shows several emission lines characteristic of AGNs, as well as interstellar absorption features seen in star-forming Lyman Break Galaxies (LBGs). We report a detection of NIV]1486, which has been observed in high-redshift radio galaxies, as well as in rare optically-selected quasars. The UV continuum slope of the composite spectrum is significantly redder than that of a sample of non-AGN UV-selected star forming galaxies. Blueshifted SiIV absorption provides evidence for outflowing highly-ionized gas in these objects at speeds of ~ 10^(3) km/s, quantitatively different from what is seen in the outflows of non-AGN LBGs. Grouping the individual AGNs by parameters such as Ly-alpha equivalent width, redshift, and UV continuum magnitude allows for an analysis of the major spectroscopic trends within the sample. Stronger Ly-alpha emission is coupled with weaker low-ionization absorption, which is similar to what is seen in the non-AGN LBGs, and highlights the role that cool interstellar gas plays in the escape of Ly-alpha photons. However, the AGN composite does not show the same trends between Ly-alpha strength and extinction seen in the non-AGN LBGs. These results represent the first such comparison at high-redshift between star-forming galaxies and similar galaxies that host AGN activity.
description: 13 pages, 6 figures, accepted by ApJ
High-temperature superconductivity in iron-based materials
Creators: name: Paglione, Johnpierre
name: Greene, Richard L.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The surprising discovery of superconductivity in layered iron-based materials, with transition temperatures climbing as high as 55 K, has lead to thousands of publications on this subject over the past two years. While there is general consensus on the unconventional nature of the Cooper pairing state of these systems, several central questions remain - including the role of magnetism, the nature of chemical and structural tuning, and the resultant pairing symmetry - and the search for universal properties and principles continues. Here we review the progress of research on iron-based superconducting materials, highlighting the major experimental benchmarks that have been so far reached and the important questions that remain to be conclusively answered.
Black Hole entropy for two higher derivative theories of gravity
Creators: name: Bellini, Emilio
name: Di Criscienzo, Roberto
name: Sebastiani, Lorenzo
name: Zerbini, Sergio
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The dark energy issue is focusing the attention of an incresing number of physicists all over the world. Among the possible alternatives in order to explain what as been named the "Mystery of the Millennium" are the so-called Modified Theories of Gravity. A crucial test for such models is represented by the existence and (if this is the case) the properties of their black hole solutions. Nowadays, to our knowledge, only two non-trivial, spherically symmetric, solutions with vanishing cosmological constant are known by Barrow & Clifton (2005) and Deser, Sarioglu & Tekin (2008). Aim of the paper is to discuss some features of such solutions, with emphasis on their thermodynamic properties such as entropy and temperature, little progress being possible along the way which leads to a consistent definition of mass.
description: 10 pages, 1 figure
Conservation laws and tachyon potentials in the sliver frame
Creators: name: Arroyo, E. Aldo
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Conservation laws have provided an elegant and efficient tool to evaluate the open string field theory interaction vertex, they have been originally implemented in the case where the string field is expanded in the Virasoro basis. In this work we derive conservation laws in the case where the string field is expanded in the so-called sliver $\mathcal{L}_0$-basis. As an application of these conservation laws derived in the sliver frame, we compute the open string field action relevant to the tachyon condensation and in order to present not only an illustration but also an additional information, we evaluate the action without imposing a gauge choice.
description: 26 pages, some typos fixed, comments added, references added
Analytical approach to model of scientific revolutions
Creators: name: Kondratiuk, Paweł
name: Siudem, Grzegorz
name: Hołyst, Janusz A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Social and Information Networks (cs.SI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: The model of scientific paradigms spreading throughout the community of agents with memory is analyzed using the master equation. The case of two competing ideas is considered for various networks of interactions, including agents placed at Erdős-Rényi graphs or complete graphs. The pace of adopting a new idea by a community is analyzed, along with the distribution of periods after which a new idea replaces the old one. The approach is extended for the chain topology onto the more general case when more than two ideas compete. Our analytical results are in agreement with numerical simulations.
description: 10 pages, 13 figures, REVTEX format
Monopole-vortex complex in a theta vacuum
Creators: name: Konishi, Kenichi
name: Michelini, Alberto
name: Ohashi, Keisuke
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss aspects of the monopole-vortex complex soliton arising in a hierarchically broken gauge system, G to H to 1, in a theta vacuum of the underlying G theory. Here we focus our attention mainly on the simplest such system with G=SU(2) and H=U(1). A consistent picture of the effect of the theta parameter is found both in a macroscopic, dual picture and in a microscopic description of the monopole-vortex complex soliton.
description: 18 pages 3 figures
The value of weekly short message service interventions targeting medication adherence : a multi-national economic evaluation in HIV and tuberculosis infection
Creators: name: Patel, Anik
Publisher: name: University of British Columbia
Year: 2017

description: Introduction: The World Health Organization has ambitious goals to eliminate AIDS and TB globally. However, the plan is expensive and financial commitment to achieve this goal is uncertain. Mobile phone-based short message service (SMS) interventions have demonstrated the ability to improve HIV drug therapy adherence. My objective was to evaluate the cost-effectiveness of SMS-based adherence interventions in three settings, which have unique epidemics and health systems, yet struggle with similar adherence barriers. In this thesis, I also consider the value of conducting a cost-effectiveness evaluation before, during and after a randomized trial. Method: This thesis has three parts. First, I evaluated the cost-effectiveness of SMS-based HIV drug adherence interventions in Kenya, where the interventions were first developed. Second, I evaluated the burden of non-adherence and cost sensitivity of SMS-based adherence interventions for latent tuberculosis infection (LTBI) drug therapy in British Columbia, where a trial of an SMS-based adherence intervention is underway. Finally, I evaluated 5,836 combinations of 15 HIV interventions, to understand the role of SMS interventions as part of a combination HIV intervention in India where a trial was being planned. Value was expressed in terms of incremental cost-effectiveness ratios (ICERs), which were a function of incremental costs and quality-adjusted life years (QALYs). Results: In Kenya, the SMS interventions were highly cost-effective in the base case (ICER=$1,389/QALY), and remained cost-effective across most sensitivity analyses. In British Columbia, hypothetical interventions that brought the population to full adherence to LTBI drug therapy could cost up to $450 per person per year and remain cost-effective. SMS interventions were least sensitive to cost and would likely be cost-effective if their efficacy were confirmed. Finally, in India, the SMS interventions were cost saving and were part of 4 of the 5 most efficient combination interventions out of 5,836 possible combinations. Conclusion: The SMS interventions are cost-effective or cost saving when compared to the standard of care in multiple settings. Findings support the implementation of SMS interventions as part of HIV and TB care and suggest they could play an essential role in global containment of these diseases.
Recursion relations for the general tree-level amplitudes in QCD with massive dirac fields
Creators: name: Chen, Gang
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: QCD amplitudes with many external fields have been studied for a long time. At tree-level, the amplitudes can be obtained effectively by the BCFW recursion relations. In this article, we extend the Britto-Cachazo-Feng-Witten (BCFW) relations to the QCD amplitude of which the external fields are all massive or include only one massless line. We find such amplitude can be split into two parts and each part of the amplitude is of some correlated spin configuration between the two shifted lines. After choosing proper momentum shift scheme, we can show that each part is constructible directly. Hence, we can obtain a general procedure for the amplitudes in QCD by the BCFW recursion relations. We apply the procedure to several amplitudes as examples. We find such methods are very efficient when there are many massive external fields in the amplitudes.
description: Publish version, 21 pages, 5 figures
Catastrophic Inflation
Creators: name: Downes, Sean
name: Dutta, Bhaskar
name: Sinha, Kuver
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study inflection point inflation using Singularity Theory, which relates degenerate critical points of functions to their local behavior. This approach illuminates universal features of small-field models and gives analytic control over parametrized families of scalar potentials near inflationary solutions. The behavior of the scalar potential is tied to the number of physical input parameters, which determines a set of universality classes. Within these classes, we obtain universal scaling relations for density perturbations and the scale of inflation. In specific models, we show that the scale of supersymmetry breaking also possesses scaling behavior. We illustrate this general structure with a specific example: the Racetrack Inflation model in type IIB string theory, with the inflaton being the real part of the Kahler modulus, and the input parameters being flux dependent quantities that appear in the 4D, N=1 superpotential.
description: 20 pages, 6 figures; v2: general discussion reworked for clarity, minor terminology changes throughout. accepted to PRD
Domain Walls and Metastable Vacua in Hot Orientifold Field Theories
Creators: name: Armoni, Adi
name: Altes, Chris P. Korthals
name: Patella, Agostino
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider "Orientifold field theories", namely SU(N) gauge theories with Dirac fermions in the two-index representation at high temperature. When N is even these theories exhibit a spontaneously broken Z2 centre symmetry. We study aspects of the domain wall that interpolates between the two vacua of the theory. In particular we calculate its tension to two-loop order. We compare its tension to the corresponding domain wall in a SU(N) gauge theory with adjoint fermions and find an agreement at large-N, as expected from planar equivalence between the two theories. Moreover, we provide a non-perturbative proof for the coincidence of the tensions at large-N. We also discuss the vacuum structure of the theory when the fermion is given a large mass and argue that there exist N-2 metastable vacua. We calculate the lifetime of those vacua in the thin wall approximation.
description: 29 pages, 4 figures. v2: minor changes in the introduction section. to appear in JHEP
Fronto-temporal functional disconnection precedes hippocampal atrophy in clinically confirmed multi-domain amnestic Mild Cognitive Impairment
Creators: name: Broadhouse, Kathryn M.
name: Winks, Natalie J.
name: Summers, Mathew J.
Publisher: name: IfADo - Leibniz Research Centre for Working Environment and Human Factors, Dortmund
Year: 2021
Subjects: mild cognitive impairment
functional magnetic resonance imaging
cognitive function
Alzheimer’s Dementia
cognitive decline

description: Mild Cognitive Impairment (MCI) is fraught with high false positive diagnostic errors. The high rate of false positive diagnosis hampers attempts to identify reliable and valid biomarkers for MCI. Recent research suggests that aberrant functional neurocircuitries emerge prior to significant cognitive deficits. The aim of the present study was to examine this in clinically confirmed multi-domain amnestic-MCI (mdaMCI) using an established, multi-time point, methodology for minimizing false positive diagnosis. Structural and resting-state functional MRI data were acquired in healthy controls (HC, n=24), clinically-confirmed multi-domain amnestic-MCI (mdaMCI, n=14) and mild Alzheimer’s Dementia (mAD, n=6). Group differences in cortical thickness, hippocampal volume and functional connectivity were investigated. Hippocampal subvolumes differentiated mAD from HC and mdaMCI. Functional decoupling of fronto-temporal networks implicated in memory and executive function differentiated HC and mdaMCI. Decreased functional connectivity in these networks was associated with poorer cognitive performance scores. Preliminary findings suggest the large-scale decoupling of fronto-temporal networks associated with cognitive decline precedes measurable structural neurodegeneration in clinically confirmed MCI and may represent a potential biomarker for disease progression.
description: EXCLI Journal; 20:Doc1458; ISSN 1611-2156
Evidence for electron-electron interaction in topological insulator thin films
Creators: name: Wang, Jian
name: DaSilva, Ashley M.
name: Chang, Cui-Zu
name: He, Ke
name: Jain, J. K.
name: Samarth, Nitin
name: Ma, Xu-Cun
name: Xue, Qi-Kun
name: Chan, Moses H. W.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We consider in our work high quality single crystal thin films of Bi2Se3, grown by molecular beam epitaxy, both with and without Pb doping. Our ARPES data demonstrate topological surface states with a Fermi level lying inside the bulk band gap in the Pb doped filims. Transport data show weak localization behavior, as expected for a 2D system, but a detailed analysis within the standard theoretical framework of diffusive transport shows that the temperature and magnetic field dependences of resistance cannot be reconciled in a theory that neglects inter-electron interactions. We demonstrate that an excellent account of quantum corrections to conductivity is achieved when both disorder and interaction are taken into account. These results clearly demonstrate that it is crucial to include electron electron interaction for a comprehensive understanding of diffusive transport in topological insulators.
description: Submitted to Phys. Rev. B
Cosmic microwave background bispectrum of tensor passive modes induced from primordial magnetic fields
Creators: name: Shiraishi, Maresuke
name: Nitta, Daisuke
name: Yokoyama, Shuichiro
name: Ichiki, Kiyotomo
name: Takahashi, Keitaro
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: If the seed magnetic fields exist in the early Universe, tensor components of their anisotropic stresses are not compensated prior to neutrino decoupling and the tensor metric perturbations generated from them survive passively. Consequently, due to the decay of these metric perturbations after recombination, the so-called integrated Sachs-Wolfe effect, the large-scale fluctuations of CMB radiation are significantly boosted. This kind of CMB anisotropy is called the "tensor passive mode." Because these fluctuations deviate largely from the Gaussian statistics due to the quadratic dependence on the strength of the Gaussian magnetic field, not only the power spectrum but also the higher-order correlations have reasonable signals. With these motives, we compute the CMB bispectrum induced by this mode. When the magnetic spectrum obeys a nearly scale-invariant shape, we obtain an estimation of a typical value of the normalized reduced bispectrum as $\ell_1(\ell_1 + 1)\ell_3(\ell_3+1)|b_{\ell_1\ell_2\ell_3}| \sim (130-6) \times 10^{-16} (B_{1 \rm Mpc} / 4.7 {\rm nG})^6$ depending on the energy scale of the magnetic field production from $10^{14}$GeV to $10^3$GeV. Here, $B_{1 {\rm Mpc}}$ is the strength of the primordial magnetic field smoothed on $1 {\rm Mpc}$. From the above estimation and the current observational constraint on the primordial non-Gaussianity, we get a rough constraint on the magnetic field strength as $B_{1 {\rm Mpc}} < 2.6 - 4.4 {\rm nG}$.
description: 5 pages, 2 figures. Accepted for publication in PRD
Time Variable Broad Line Emission in NGC 4203: Evidence for Stellar Contrails
Creators: name: Devereux, Nick
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Dual epoch spectroscopy of the lenticular galaxy, NGC 4203, obtained with the Hubble Space Telescope (HST) has revealed that the double-peaked component of the broad Hα emission line profile is time variable, increasing by a factor of 2.2 in brightness between 1999 and 2010. Modeling the gas distribution responsible for the double-peaked profiles indicates that a ring is a more appropriate description than a disk and most likely represents the contrail of a red supergiant star that is being tidally disrupted at a distance of ~ 1500 AU from the central black hole. There is also a bright core of broad Hα line emission that is not time variable and identified with a large scale inflow from an outer radius ~1 pc. If the gas number density is > 10^6 cm^{-3}, as suggested by the absence of similarly broad [O I] and [O III] emission lines, then the steady state inflow rate is ~ 2 x 10^{-2} M{_{\sun}}/yr which exceeds the inflow requirement to explain the X-ray luminosity in terms of radiatively inefficient accretion by a factor of ~6. The central AGN is unable to sustain ionization of the broad line region, the discrepancy is particularly acute in 2010 when the broad Hα emission line is dominated by the contrail of the in-falling supergiant star. However, ram pressure shock ionization produced by the interaction of the in-falling supergiant with the ambient interstellar medium may help alleviate the ionizing deficit by generating a mechanical source of ionization supplementing the photoionization provided by the AGN.
description: Accepted ApJ 7 September 2011, 27 pages, 7 figures, v2 revised according to referees comments
title: LAILLY_BEAUREGARD 1
Creators: name: DESCHAMPS M.
name: HERZLINGER G.
name: PERROTTE J.
name: VARANDA A.
name: PERROTTE J
name: Herisson, David
name: AnTET - ArScAn UMR 7041
Publisher: name: Archeovision
Year: 2022
Subjects: subject: biface

description: Le site de Lailly/Le Domaine de Beauregard se trouve sur un versant doux exposé à l’est en contexte limoneux, ce qui a favorisé la conservation de niveaux paléolithiques en place.Les niveaux D et C du Paléolithique moyen sont localisés à l’emplacement d’une structure karstique de type doline, au sein de limons sableux de couleur brun-rouge à orangé. Ces niveaux sont donc fortement perturbés par les phénomènes de soutirage. Le niveau D, situé sous le paléosol eemien, est attribuable au Saalien. Le niveau C a été retrouvé dans un limon attribué à un remaniement de sol de l’Eemien ou du début du Weichselien ancien.Le principal niveau d’occupation (niveau B) est contenu dans un paléosol gris attribué au Weichselien ancien. Cette industrie moustérienne possède principalement deux types de débitage, Levallois et laminaires, bien maîtrisés, associés à quelques bifaces.Le dernier niveau d’occupation (niveau A) est préservé dans des limons attribuables au Pléniglaciaire inférieur ou moyen.Locht J.-L., Ferdouel F., 1994. Lailly/Le Domaine de Beauregard. In Deloze V., Depaepe P., Gouédo J.-M., Krier V., Locht J.-L. (dir.). Le Paléolithique moyen dans le Nord du Sénonais (Yonne). Documents d’Archéologie Française, 47, Maison des Sciences de l’Homme, Paris, p. 139-162.
description: 6 fichiers 3D (ply)
Low energy states dynamic of entanglement for spin systems
Creators: name: Jafari, R.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have composed the ideas of quantum renormalization group and quantum information by exploring the low energy states dynamic of entanglement resources of a system close to its quantum critical point. We demonstrate the low energy states dynamical quantities of the one dimensional magnetic systems could show the quantum phase transition point and shows the scaling behavior in the vicinity of the transition point. To present our idea, we study the evolution of two spins entanglement in the one-dimensional Ising model in the transverse field. The system is initialized as the so-called thermal ground state of the pure Ising model. We investigate evolvement of the generation of entanglement with increasing the magnetic field. We have obtained that the derivative of the time at which the entanglement reaches its maximums with respect to the transverse field, diverges at the critical point and its scaling behaviors versus the size of the system are as same as the static ground state entanglement of the the system.
description: Accepted by Physical Review A
Running coupling and mass anomalous dimension of SU(3) gauge theory with two flavors of symmetric-representation fermions
Creators: name: DeGrand, Thomas
name: Shamir, Yigal
name: Svetitsky, Benjamin
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We have measured the running coupling constant of SU(3) gauge theory coupled to Nf=2 flavors of symmetric representation fermions, using the Schrodinger functional scheme. Our lattice action is defined with hypercubic smeared links which, along with the larger lattice sizes, bring us closer to the continuum limit than in our previous study. We observe that the coupling runs more slowly than predicted by asymptotic freedom, but we are unable to observe fixed point behavior before encountering a first order transition to a strong coupling phase. This indicates that the infrared fixed point found with the thin-link action is a lattice artifact. The slow running of the gauge coupling permits an accurate determination of the mass anomalous dimension for this theory, which we observe to be small, gamma_m < 0.6, over the range of couplings we can reach. We also study the bulk and finite-temperature phase transitions in the strong coupling region.
description: 17 pages, 16 figures. Substantial modifications to explain why the fat-link result for the beta function supersedes our thin-link result; also updated the phase diagram to reflect additional numerical work. Added references. Final version