cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Sympathetic cooling of a membrane oscillator in a hybrid mechanical-atomic system
Creators: name: Jöckel, Andreas
name: Faber, Aline
name: Kampschulte, Tobias
name: Korppi, Maria
name: Rakher, Matthew T.
name: Treutlein, Philipp
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Sympathetic cooling with ultracold atoms and atomic ions enables ultralow temperatures in systems where direct laser or evaporative cooling is not possible. It has so far been limited to the cooling of other microscopic particles, with masses up to $90$ times larger than that of the coolant atom. Here we use ultracold atoms to sympathetically cool the vibrations of a Si$_3$N$_4$ nanomembrane, whose mass exceeds that of the atomic ensemble by a factor of $10^{10}$. The coupling of atomic and membrane vibrations is mediated by laser light over a macroscopic distance and enhanced by placing the membrane in an optical cavity. We observe cooling of the membrane vibrations from room temperature to $650\pm 230$ mK, exploiting the large atom-membrane cooperativity of our hybrid optomechanical system. Our scheme enables ground-state cooling and quantum control of low-frequency oscillators such as nanomembranes or levitated nanoparticles, in a regime where purely optomechanical techniques cannot reach the ground state.
description: 11 pages, 4 figures
Comparison of Xpert MTB/RIF with Other Nucleic Acid Technologies for Diagnosing Pulmonary Tuberculosis in a High HIV Prevalence Setting: A Prospective Study
Creators: name: Duse, Adrian
name: Gous, Natasha
name: Scott, Lesley E.
name: McCarthy, Kerrigan
name: Nduna, Matilda
name: Van Rie, Annelies
name: Stevens, Wendy
name: Sanne, Ian
name: Venter, Willem F.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011

description: The Xpert MTB/RIF (Cepheid) non-laboratory-based molecular assay has potential to improve the diagnosis of tuberculosis (TB), especially in HIV-infected populations, through increased sensitivity, reduced turnaround time (2 h), and immediate identification of rifampicin (RIF) resistance. In a prospective clinical validation study we compared the performance of Xpert MTB/RIF, MTBDRplus (Hain Lifescience), LightCycler Mycobacterium Detection (LCTB) (Roche), with acid fast bacilli (AFB) smear microscopy and liquid culture on a single sputum specimen.
Special quasirandom structure in heterovalent ionic systems
Creators: name: Seko, Atsuto
name: Tanaka, Isao
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The use of a special quasirandom structure (SQS) is a rational and efficient way to approximate random alloys. A wide variety of physical properties of metallic and semiconductor random alloys have been successfully estimated by a combination of an SQS and density functional theory (DFT) calculation. Here, we investigate the application of an SQS to the ionic multicomponent systems with configurations of heterovalent ions, including point-charge lattices, MgAl$_2$O$_4$ and ZnSnP$_2$. It is found that the physical properties do not converge with the supercell size of the SQS. This is ascribed to the fact that the correlation functions of long-range clusters larger than the period of the supercell are not optimized in the SQS. However, we demonstrate that the physical properties of the perfectly disordered structure can be estimated by linear extrapolation using the inverse of the supercell size.
description: 7 pages, 4 figures
A Consensual Collaborative Learning Method for Remote Sensing Image Classification Under Noisy Multi-Labels
Creators: name: Aksoy, Ahmet Kerem
name: Ravanbakhsh, Mahdyar
name: Kreuziger, Tristan
name: Demir, Begum
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Collecting a large number of reliable training images annotated by multiple land-cover class labels in the framework of multi-label classification is time-consuming and costly in remote sensing (RS). To address this problem, publicly available thematic products are often used for annotating RS images with zero-labeling-cost. However, such an approach may result in constructing a training set with noisy multi-labels, distorting the learning process. To address this problem, we propose a Consensual Collaborative Multi-Label Learning (CCML) method. The proposed CCML identifies, ranks and corrects training images with noisy multi-labels through four main modules: 1) discrepancy module; 2) group lasso module; 3) flipping module; and 4) swap module. The discrepancy module ensures that the two networks learn diverse features, while obtaining the same predictions. The group lasso module detects the potentially noisy labels by estimating the label uncertainty based on the aggregation of two collaborative networks. The flipping module corrects the identified noisy labels, whereas the swap module exchanges the ranking information between the two networks. The experimental results confirm the success of the proposed CCML under high (synthetically added) multi-label noise rates. The code of the proposed method is publicly available at https://noisy-labels-in-rs.org
description: Accepted in ICIP 2021. Our code is available at https://noisy-labels-in-rs.org . arXiv admin note: text overlap with arXiv:2012.10715
Energy Density, Portion Size, and Eating Occasions: Contributions to Increased Energy Intake in the United States, 1977–2006
Creators: name: Duffey, Kiyah J.
name: Popkin, Barry M.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011

description: Competing theories attempt to explain changes in total energy (TE) intake; however, a rigorous, comprehensive examination of these explanations has not been undertaken. Our objective was to examine the relative contribution of energy density (ED), portion size (PS), and the number of eating/drinking occasions (EOs) to changes in daily TE.
Individual risk in mean-field control models for decentralized control, with application to automated demand response
Creators: name: Chen, Yue
name: Bušić, Ana
name: Meyn, Sean
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optimization and Control (math.OC)
subject: Systems and Control (eess.SY)
subject: FOS: Mathematics
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Flexibility of energy consumption can be harnessed for the purposes of ancillary services in a large power grid. In prior work by the authors a randomized control architecture is introduced for individual loads for this purpose. In examples it is shown that the control architecture can be designed so that control of the loads is easy at the grid level: Tracking of a balancing authority reference signal is possible, while ensuring that the quality of service (QoS) for each load is acceptable on average. The analysis was based on a mean field limit (as the number of loads approaches infinity), combined with an LTI-system approximation of the aggregate nonlinear model. This paper examines in depth the issue of individual risk in these systems. The main contributions of the paper are of two kinds: Risk is modeled and quantified: (i) The average performance is not an adequate measure of success. It is found empirically that a histogram of QoS is approximately Gaussian, and consequently each load will eventually receive poor service. (ii) The variance can be estimated from a refinement of the LTI model that includes a white-noise disturbance; variance is a function of the randomized policy, as well as the power spectral density of the reference signal. Additional local control can eliminate risk: (iii) The histogram of QoS is truncated through this local control, so that strict bounds on service quality are guaranteed. (iv) This has insignificant impact on the grid-level performance, beyond a modest reduction in capacity of ancillary service.
description: Publication without appendix to appear in the 53rd IEEE Conf. on Decision and Control, December, 2014
Canadian Gallup Poll # 214A
Creators: name: Canadian Institute Of Public Opinion (Gallup)
Publisher: name: Roper Center for Public Opinion Research
Year: 2019

description: National and Ontario elections: interest, vote intent(6); vote in past national and Ontario elections(2); Post war Germany(2); inflation(6); smoking habits(3); Korean War(1). Note: Demographics(13). Not included: parents' country of origin, religion. Added: Voting eligibility.
Podcast als innovative Lehr- und Lernressource. Eine systematische Übersichtsarbeit: Empirischer Forschungsstand zum Einsatz von Podcasts als Lehr- und Lerninstrument im pflegepädagogischen Kontext.
Creators: name: Huck, Anastasia
Publisher: name: Zenodo
Year: 2024
Subjects: E-Learning
Generalistische Pflegeausbildung
Lernen
Digitales Medium
Podcast
Medienpädagogik
Medienkompetenz

description: Hintergrund: Neben gesetzlichen Veränderungen beeinflusst die Digitalisierung das Lehren und Lernen an pflegerischen Berufsfachschulen. Angesichts der Popularität von Podcasts entstand das Forschungsinteresse, dessen Potenzial als Lehr- und Lerninstrument im pflegerischen Bildungskontext zu untersuchen.

Zielsetzung: Das Ziel der Arbeit besteht darin, den aktuellen Stand der Forschung zur Nutzung von Podcasts im E-Learning-Kontext zu identifizieren. Unter anderem wird hierbei mithilfe einer allgemeinen Literaturrecherche beleuchtet, auf welche Weise Podcasts in der Lehre eingesetzt werden können. Das Hauptziel ist es, die Auswirkungen des ergänzenden bzw. substituierenden Einsatzes von instruktivem Podcasting auf den Kompetenzerwerb von Lernenden im pflegerischen Bildungskontext mittels einer systematischen Literaturanalyse zu analysieren.

Methoden: Eingeschlossen wurden empirische Studien mit einem quantitativen bzw. Mix-Methods-Design der letzten 15 Jahre. Die Zielgruppe umfasste Lernende in pflegerischer Ausbildung oder im pflegerischen Studium. Interventionen innerhalb der Studien, die in Betracht gezogen wurden, bezogen sich auf den ergänzenden bzw. substituierenden Einsatz von instruktivem Pod-casting als digitales Bildungsinstrument. Dabei wurden nur derartige Studienergebnisse berücksichtigt, die den Erwerb von Kompetenzen primär anhand objektiver Maße untersuchten. Hierfür wurden die Datenbanken MEDLINE via PubMed, ERIC via IES, BEME via Taylor&Francis Online und Elsevier via ScienceDirect im Zeitraum vom 08.02.2024 bis zum 10.02.2024 durchsucht. Die Qualitätsbewertung erfolgte anhand spezieller Bewertungskriterien für Bildungsforschung. Die Forschungssynthese wird in narrativer Form auf Grundlage einer tabellarischen Datenextraktion geboten.

Ergebnisse: Insgesamt wurden sechs Studien mit insgesamt 861 Teilnehmenden untersucht, die einen Fokus auf die Wirksamkeit von instruktiven Podcasts zur Förderung des Kompetenzerwerbs bei Lernenden in einem pflegerischen Studium aufwiesen. Die Studien aus den Jahren 2010 bis 2023 variierten im quantitativen Studiendesign und wiesen eine eingeschränkte interne und externe Validität auf.

Diskussion: In Bezug auf Komponenten der Fachkompetenz wie Wissensaneignung und kritisches Denken zeigten die Studien keine signifikanten Unterschiede zwischen Podcast-Nutzung und traditionellem Unterricht, so auch keine nachteiligen Effekte. Lediglich bei der Betrachtung der Podcast-Interventionen wurde eine allgemeine Verbesserung des Wissens und beruflichen Selbstvertrauens verzeichnet. Bedeutsam war ebenfalls die positive Bewertung der Podcasts durch die Lernenden. Limitationen der vorliegenden Arbeit sind eine begrenzte Validität und vorhandene Heterogenität der Studien sowie die zeitliche Begrenzung der Arbeit.
Data standards, data sharing and cumulative impact assessments - some considerations: Part 1 [abstract]
Creators: name: Roy, Louisa
name: Vines, Gary
name: Howes, Jenny
name: Lange, Josara de
name: Tumney, Jacqui
name: Rymer, Jones
name: Rymer, Tom
name: Archaeology Program, La Trobe University
Publisher: name: La Trobe
Year: 2023

description: Blank
Interactions of adsorbed CO$_2$ on water ice at low temperatures
Creators: name: Karssemeijer, L. J.
name: de Wijs, G. A.
name: Cuppen, H. M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We present a computational study into the adsorption properties of CO$_2$ on amorphous and crystalline water surfaces under astrophysically relevant conditions. Water and carbon dioxide are two of the most dominant species in the icy mantles of interstellar dust grains and a thorough understanding of their solid phase interactions at low temperatures is crucial for understanding the structural evolution of the ices due to thermal segregation. In this paper, a new H$_2$O-CO$_2$ interaction potential is proposed and used to model the ballistic deposition of CO$_2$ layers on water ice surfaces, and to study the individual binding sites at low coverages. Contrary to recent experimental results, we do not observe CO$_2$ island formation on any type of water substrate. Additionally, density functional theory calculations are performed to assess the importance of induced electrostatic interactions.
description: Accepted for publication in Physical Chemistry Chemical Physics
Canadian Gallup Poll # 233
Creators: name: Canadian Institute Of Public Opinion (Gallup)
Publisher: name: Roper Center for Public Opinion Research
Year: 2019

description: Federal election vote intent(1); past federal elections vote(1); legalization of sweepstakes and lotteries(2); Christmas and New Year's ideas(8); eating habits(12); Canadian Parliament(5); women as bosses(2). Note: Demographics(16). Added: children under 16.
Choiceless Chain Conditions
Creators: name: Karagila, Asaf
name: Schweber, Noah
Publisher: name: arXiv
Year: 2021
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics
subject: Primary 03E25, Secondary 03E35

description: Chain conditions are one of the major tools used in the theory of forcing. We say that a partial order has the countable chain condition if every antichain (in the sense of forcing) is countable. Without the axiom of choice antichains tend to be of little use, for various reasons, and in this short note we study a number of conditions which in ZFC are equivalent to the countable chain condition.
description: 15 pages; removed problematic proof and added new results
Canadian Gallup Poll # 267
Creators: name: Canadian Institute Of Public Opinion (Gallup)
Publisher: name: Roper Center for Public Opinion Research
Year: 2019

description: Upcoming federal election: interest, vote intent(3); past federal elections vote(1); current party preference(1); Russia and the Cold War(2); UN peace-keeping mission(1); minimum family income(1); spending on food(1); greatest personal/family problem(1); men and housework(4). Note: Demographics(13). Added: voting eligibility.
Physical Activity Attenuates the Influence of FTO Variants on Obesity Risk: A Meta-Analysis of 218,166 Adults and 19,268 Children
Creators: name: Kaakinen, Marika
name: Mora, Samia
name: Timpson, Nicholas J.
name: Sharp, Stephen J.
name: Holzapfel, Christina
name: Brage, Soren
name: Garcia, Melissa E.
name: Kumari, Meena
name: Cauchi, Stéphane
name: Balkau, Beverley
name: Stančáková, Alena
name: Onland-Moret, N. Charlotte
name: He, Meian
name: Johansson, Stefan
name: Demerath, Ellen
name: Autenrieth, Christine S.
name: van Vliet-Ostaptchouk, Jana V.
name: Qi, Lu
name: Jablonski, Kathleen A.
name: Kilpeläinen, Tuomas O.
name: Zillikens, M. Carola
name: Sandholt, Camilla Helene
name: Kutalik, Zoltan
name: Wu, Ying
name: Ahmad, Tariq
name: Sonestedt, Emily
name: Song, Yiqing
name: Hyppönen, Elina
name: Tan, Jonathan T.
name: Meidtner, Karina
name: Mangino, Massimo
name: Bragg-Gresham, Jennifer L.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011

description: The FTO gene harbors the strongest known susceptibility locus for obesity. While many individual studies have suggested that physical activity (PA) may attenuate the effect of FTO on obesity risk, other studies have not been able to confirm this interaction. To confirm or refute unambiguously whether PA attenuates the association of FTO with obesity risk, we meta-analyzed data from 45 studies of adults (n = 218,166) and nine studies of children and adolescents (n = 19,268).
Data standards, data sharing and cumulative impact assessments - some considerations: Part 2 [abstract]
Creators: name: Roy, Louisa
name: Vines, Gary
name: Howes, Jenny
name: Lange, Josara de
name: Tumney, Jacqui
name: Rymer, Jones
name: Rymer, Tom
name: Archaeology Program, La Trobe University
Publisher: name: La Trobe
Year: 2023

description: Blank
Seeding optimization for instantaneous volumetric velocimetry. Application to a jet in crossflow
Creators: name: Cambonie, Tristan
name: Aider, Jean-Luc
Publisher: name: arXiv
Year: 2014
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Instrumentation and Detectors (physics.ins-det)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Every volumetric velocimetry measurements based on tracer (particles, bubbles, etc.) detection can be strongly influenced by the optical screening phenomenon. It has to be taken into account when the the statistical properties associated to the performances of the particle detection and tracking algorithms are significantly affected. It leads to a maximum concentration of particles in the images thus limiting the final spatial resolution of the instantaneous three-dimensional three-components (3D3C) velocity fields. A volumetric velocimetry system based on Defocused Digital Particle Image Velocimetry is used to show that above a critical visual concentration of particles in the images, the concentration and accuracy of the final instantaneous raw velocity vector field drop. The critical concentration depends on physical parameters as well as on the processing algorithms. Three distinct regimes are identified. In the first regime, the concentration is well adapted to volumetric velocimetry, the largest concentration being optimal to maximize the number of valid velocity vectors. In the second regime, the performances of the detection and tracking algorithms are no longer optimal. Finally, the third regime is strongly influenced by optical screening. A rigorous methodology is proposed to optimize volumetric measurements taking into account the system specifications (pixel size, focal length, system magnification, etc.). An optimal particle concentration of 0.045 particles/pixel (ppp) is found. A relationship between the imaged concentration and the optimal final spatial resolution for fully interpolated instantaneous velocity field is obtained. The present study can be used as a guideline to achieve the measurement of instantaneous three-dimensional velocity fields with a good spatial resolution. It is finally successfully applied to a complex 3D flow test case: a jet in crossflow.
description: 35 pages, 19 figures, postprint version of an already published article
Quantum Entanglement of Localized Excited States at Finite Temperature
Creators: name: Caputa, Pawel
name: Simon, Joan
name: Stikonas, Andrius
name: Takayanagi, Tadashi
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this work we study the time evolutions of (Renyi) entanglement entropy of locally excited states in two dimensional conformal field theories (CFTs) at finite temperature. We consider excited states created by acting with local operators on thermal states and give both field theoretic and holographic calculations. In free field CFTs, we find that the growth of Renyi entanglement entropy at finite temperature is reduced compared to the zero temperature result by a small quantity proportional to the width of the localized excitations. On the other hand, in finite temperature CFTs with classical gravity duals, we find that the entanglement entropy approaches a characteristic value at late time. This behaviour does not occur at zero temperature. We also study the mutual information between the two CFTs in the thermofield double (TFD) formulation and give physical interpretations of our results.
description: 1+28 pages, 12 figures, v2 reference added
Canadian Gallup Poll # 262S1
Creators: name: Canadian Institute Of Public Opinion (Gallup)
Publisher: name: Roper Center for Public Opinion Research
Year: 2019

description: Federal election vote intent(1); past federal elections vote(1); Queen Mother for Governor General(2); space exploration(4); US, foreign investment capital in Canada(3); higher wages for labor(3); chances of world war(1); future prosperity(2); political parties(4); free trade between Canada and Britain(4). Note: Demographics(12).
A study of integrable form factors in massless relativistic AdS_3
Creators: name: Torrielli, Alessandro
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that the massless integrable sector of the AdS_3 \times S^3 \times T^4 superstring theory, which admits a non-trivial relativistic limit, provides a setting where it is possible to determine exact minimal solutions to the form factor axioms, in integral form, based on analiticity considerations, along the same lines of ordinary relativistic integrable models. We construct in full detail the formulas for the two- and three-particle case, and show the similarities as well as the differences with respect to the off-shell Bethe ansatz procedure of Babujian et al. We show that our expressions pass a series of non-trivial consistency checks which are substantially more involved than in the traditional case. We speculate on the problems concerned in a possible generalisation to an arbitrary number of particles, and on a possible connection with the hexagon programme.
description: PDFLaTeX, 51 pages, 10 figures; v2: minor changes, version to appear in J Phys A; v3: more typos spotted
title: Front Matter, Table of Contents, Preface, Conference Organization
Creators: name: Kumar, Amit
name: Ron-Zewi, Noga
Publisher: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Year: 2024
Subjects: subject: Front Matter
subject: Table of Contents
subject: Preface
subject: Conference Organization
subject: Theory of computation

description: Front Matter, Table of Contents, Preface, Conference Organization
description: LIPIcs, Vol. 317, Approximation, Randomization, and Combinatorial Optimization. Algorithms and Techniques (APPROX/RANDOM 2024), pages 0:i-0:xxvi
The feasible region of induced graphs
Creators: name: Liu, Xizhi
name: Mubayi, Dhruv
name: Reiher, Christian
Publisher: name: arXiv
Year: 2021
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: The feasible region $Ω_{\rm ind}(F)$ of a graph $F$ is the collection of points $(x,y)$ in the unit square such that there exists a sequence of graphs whose edge densities approach $x$ and whose induced $F$-densities approach $y$. A complete description of $Ω_{\rm ind}(F)$ is not known for any $F$ with at least four vertices that is not a clique or an independent set. The feasible region provides a lot of combinatorial information about $F$. For example, the supremum of $y$ over all $(x,y)\in Ω_{\rm ind}(F)$ is the inducibility of $F$ and $Ω_{\rm ind}(K_r)$ yields the Kruskal-Katona and clique density theorems. We begin a systematic study of $Ω_{\rm ind}(F)$ by proving some general statements about the shape of $Ω_{\rm ind}(F)$ and giving results for some specific graphs $F$. Many of our theorems apply to the more general setting of quantum graphs. For example, we prove a bound for quantum graphs that generalizes an old result of Bollobás for the number of cliques in a graph with given edge density. We also consider the problems of determining $Ω_{\rm ind}(F)$ when $F=K_r^-$, $F$ is a star, or $F$ is a complete bipartite graph. In the case of $K_r^-$ our results sharpen those predicted by the edge-statistics conjecture of Alon et. al. while also extending a theorem of Hirst for $K_4^-$ that was proved using computer aided techniques and flag algebras. The case of the 4-cycle seems particularly interesting and we conjecture that $Ω_{\rm ind}(C_4)$ is determined by the solution to the triangle density problem, which has been solved by Razborov.
description: revised according to two referee reports
Convergence order of the geometric mean errors for Markov-type measures
Creators: name: Zhu, Sanguo
Publisher: name: arXiv
Year: 2014
Subjects: subject: Metric Geometry (math.MG)
subject: FOS: Mathematics
subject: 28A80, 28A75, 94A15

description: We study the quantization problem with respect to the geometric mean error for Markov-type measures $μ$ on a class of fractal sets. Assuming the irreducibility of the corresponding transition matrix $P$, we determine the exact convergence order of the geometric mean errors of $μ$. In particular, we show that, the quantization dimension of order zero is independent of the initial probability vector when $P$ is irreducible, while this is not true if $P$ is reducible.
A new framework for polynomial approximation to differential equations
Creators: name: Brugnano, Luigi
name: Frasca-Caccia, Gianluca
name: Iavernaro, Felice
name: Vespri, Vincenzo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65L05, 65L03, 65L06, 65P10

description: In this paper we discuss a framework for the polynomial approximation to the solution of initial value problems for differential equations. The framework, initially devised for the approximation of ordinary differential equations, is further extended to cope with constant delay differential equations. Relevant classes of Runge-Kutta methods can be derived within this framework.
description: 35 pages, 4 figures, 2 tables
Preserving entanglement and nonlocality in solid-state qubits by dynamical decoupling
Creators: name: Franco, Rosario Lo
name: D'Arrigo, Antonio
name: Falci, Giuseppe
name: Compagno, Giuseppe
name: Paladino, Elisabetta
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper we study how to preserve entanglement and nonlocality under dephasing produced by classical noise with large low-frequency components, as $1/f$ noise, by Dynamical Decoupling techniques. We first show that quantifiers of entanglement and nonlocality satisfy a closed relation valid for two independent qubits locally coupled to a generic environment under pure dephasing and starting from a general class of initial states. This result allows to assess the efficiency of pulse-based dynamical decoupling for protecting nonlocal quantum correlations between two qubits subject to pure-dephasing local random telegraph and $1/f$-noise. We investigate the efficiency of an "entanglement memory" element under two-pulse echo and under sequences of periodic, Carr-Purcell and Uhrig dynamical decoupling. The Carr-Purcell sequence is shown to outperform the other sequences in preserving entanglement against both random telegraph and $1/f$ noise. For typical $1/f$ flux-noise figures in superconducting nanocircuits, we show that entanglement and its nonlocal features can be efficiently stored up to times one order of magnitude longer than natural entanglement disappearance times employing pulse timings of current experimental reach.
description: 12 pages, 8 figures
Canadian Gallup Poll # 247
Creators: name: Canadian Institute Of Public Opinion (Gallup)
Publisher: name: Roper Center for Public Opinion Research
Year: 2019

description: Federal election vote intent(1); past federal elections vote(1); two party system in Canada(2); TV and family life(3); medical expenses and taxes(2); Trans-Canada pipeline(5); eating out(3); shorter work-week in industry(2); monopolies and high prices(2). Note: Demographics(13). Not included: religion, education.
On the Area Expansion of Magnetic Flux-Tubes in Solar Active Regions
Creators: name: Dudik, Jaroslav
name: Dzifcakova, Elena
name: Cirtain, Jonathan W.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We calculated the 3D distribution of the area expansion factors in a potential magnetic field extrapolated from the high-resolution \textit{Hinode}/SOT magnetogram of a quiescent active region NOAA 11482. Retaining only closed loops within the computational box, we show that the distribution of area expansion factors show significant structure. Loop-like structures characterized by locally lower values of the expansion factor are embedded in a smooth background. These loop-like flux-tubes have squashed cross-sections and expand with height. The distribution of the expansion factors show overall increase with height, allowing an active region core characterized by low values of the expansion factor to be distinguished. The area expansion factors obtained from extrapolation of the SOT magnetogram are compared to those obtained from an approximation of the observed magnetogram by a series of 134 submerged charges. This approximation retains the general flux distribution in the observed magnetogram, but removes the small-scale structure in both the approximated magnetogram and the 3D distribution of the area expansion factors. We argue that the structuring of the expansion factor can be a significant ingredient in producing the observed structuring of the solar corona. However, due to the potential approximation used, these results may not be applicable to loops exhibiting twist neither to active regions producing significant flares.
description: The Astrophysical Journal, accepted
Canadian Gallup Poll # 276
Creators: name: Canadian Institute Of Public Opinion (Gallup)
Publisher: name: Roper Center for Public Opinion Research
Year: 2019

description: Federal and provincial elections vote intent(2); past federal elections vote(1); TV programs(3); standard of living(2); political parties(11); federal budget deficit(4); inflation(1); immigration to Canada(2); greatest problem facing the federal government(1). Note: Demographics(13). Added: children.
The Effect of Highly Active Antiretroviral Therapy on the Survival of HIV-Infected Children in a Resource-Deprived Setting: A Cohort Study
Creators: name: Van Rie, Annelies
name: Kitetele, Faustin
name: Lusiama, Jean
name: Matumona, Yori
name: Edmonds, Andrew
name: Behets, Frieda
name: Yotebieng, Marcel
name: Napravnik, Sonia
name: Cole, Stephen R.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011

description: The effect of highly active antiretroviral therapy (HAART) on the survival of HIV-infected children has not been well quantified. Because most pediatric HIV occurs in low- and middle-income countries, our objective was to provide a first estimate of this effect among children living in a resource-deprived setting.
Anisotropic connections and parallel transport in Finsler spacetimes
Creators: name: Javaloyes, Miguel Ángel
name: Sánchez, Miguel
name: Villaseñor, Fidel F.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Differential Geometry (math.DG)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: The general notion of anisotropic connections $\nabla$ is revisited, including its precise relations with the standard setting of pseudo-Finsler metrics, i.e., the canonic nonlinear connection and the (linear) Finslerian connections. In particular, the vertically trivial Finsler connections are identified canonically with anisotropic connections. So, these connections provide a simple intrinsic interpretation of a part of any Finsler connection closer to the Koszul formulation in $M$. Moreover, a new covariant derivative and parallel transport along curves is introduced, taking first a self-propagated vector ({\em instantaneous observer}) so that it serves as a reference for the propagation of the others. The covariant derivative of any anisotropic tensor is given by the natural derivative of a curve of tensors obtained by parallel transport along a curve and, in the case of pseudo-Finsler metrics, this is used to characterize the Levi-Civita--Chern anisotropic connection as the one that preserves the length of parallely propagated vectors.
description: 29 pages
20 Years of SpeX Spectroscopy: A Spectral Library of Diverse Stellar Sources
Creators: name: , Burgasser
name: , Cushing
name: , Cruz
name: , Theissen
name: , Hsu
name: , Aganze
name: , Thomas
name: , Rayner
Publisher: name: Zenodo
Year: 2023

description: Stellar spectral libraries, from the Henry Draper catalog to today's large-scale optical and infrared surveys, have long served a central role in advancing our understanding of the Universe, from the characterization of diverse Milky Way populations to the discovery of rare or transient sources. In addition to dedicated spectral surveys, millions of spectra are also present in observatory archives, many of which remain unpublished and unavailable for scientific analysis. Here, we present a collaborative effort to reduce, analyze, and disseminate over 20 years of near-infrared spectral data now available through the IRSA SpeX Archive and IRTF Legacy Archive. We summarize the contents of these archives by source type; review the status of our current reduction efforts, including the development of a python-based version of the popular Spextool package; describe tools developed in this program for data visualization and analysis; and highlight potential science opportunities, including spectral variability studies, machine-learning classification algorithms, and exoplanet host star characterization, all relevant to forthcoming infrared spectral surveys conducted with JWST, SPHEREx, Euclid, and the Nancy Grace Roman Space Telescope. Data will be made publicly available in multiple data formats through the IRSA Data Archive.
Voluntary Medical Male Circumcision: Logistics, Commodities, and Waste Management Requirements for Scale-Up of Services
Creators: name: Adamu, Tigistu
name: Njeuhmeli, Emmanuel
name: Chrouser, Kristin
name: Stanton, David
name: Forsythe, Steven
name: Stankard, Petra
name: Edgil, Dianna
name: Albertini, Jennifer
name: Thomas, Anne Goldzier
name: Dickson, Kim Eva
name: Rech, Dino
name: Sakallah, Sameer
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011

description: The global HIV prevention community is implementing voluntary medical male circumcision (VMMC) programs across eastern and southern Africa, with a goal of reaching 80% coverage in adult males by 2015. Successful implementation will depend on the accessibility of commodities essential for VMMC programming and the appropriate allocation of resources to support the VMMC supply chain. For this, the United States President’s Emergency Plan for AIDS Relief, in collaboration with the World Health Organization and the Joint United Nations Programme on HIV/AIDS, has developed a standard list of commodities for VMMC programs.
Collective correlations, dynamics, and behavioural inconsistencies of the cryptocurrency market over time
Creators: name: James, Nick
name: Menzies, Max
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Finance (q-fin.ST)
subject: FOS: Economics and business

description: This paper introduces new methods to study behaviours among the 52 largest cryptocurrencies between 01-01-2019 and 30-06-2021. First, we explore evolutionary correlation behaviours and apply a recently proposed turning point algorithm to identify regimes in market correlation. Next, we inspect the relationship between collective dynamics and the cryptocurrency market size - revealing an inverse relationship between the size of the market and the strength of collective dynamics. We then explore the time-varying consistency of the relationships between cryptocurrencies' size and their returns and volatility. There, we demonstrate that there is greater consistency between size and volatility than size and returns. Finally, we study the spread of volatility behaviours across the market changing with time by examining the structure of Wasserstein distances between probability density functions of rolling volatility. We demonstrate a new phenomenon of increased uniformity in volatility during market crashes, which we term \emph{volatility dispersion}.
description: Final version. Moderate edits since v1. Equal contribution
Canadian Gallup Poll # 252
Creators: name: Canadian Institute Of Public Opinion (Gallup)
Publisher: name: Roper Center for Public Opinion Research
Year: 2019

description: Federal elections vote intent(1); past federal elections vote(1); party preference(2); economic outlook(2); US foreign policy(2); British foreign policy(2); Canadian armed forces(3); income tax authorities(3); economic situation of farmers(3); knowledge of provincial premiers(10); labor unions(3); nominees for Governor General(4); church/synagogue attendance(2). Note: Demographics(14). Not included: family status.
Entangling time-bin qubits with a switch
Creators: name: Takesue, Hiroki
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A time-bin qubit is a promising candidate qubit for advanced quantum information processing systems operating over optical fibers or integrated quantum photonic circuits. However, the single- and two-qubit operations of time-bin qubits have been largely unexplored compared with those of polarization qubits. Here, I present a simple scheme for implementing a basic two-qubit operation, namely an "entangling" operation of two independent time-bin qubits, based on Hong-Ou-Mandel quantum interference in a high-speed 2x2 optical switch. With the proposed scheme, the formation of a time-bin entanglement was confirmed experimentally.
description: 12 pages, 5 figures
HIV Treatment as Prevention: Debate and Commentary—Will Early Infection Compromise Treatment-as-Prevention Strategies?
Creators: name: Powers, Kimberly A.
name: Dye, Christopher
name: Williams, Brian G.
name: Cohen, Myron S.
name: Fraser, Christophe
name: Miller, William C.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: Universal HIV testing and immediate antiretroviral therapy for infected individuals has been proposed as a way of reducing the transmission of HIV and thereby bringing the HIV epidemic under control. It is unclear whether transmission during early HIV infection—before individuals are likely to have been diagnosed with HIV and started on antiretroviral therapy—will compromise the effectiveness of treatment as prevention. This article presents two opposing viewpoints by Powers, Miller, and Cohen, and Williams and Dye, followed by a commentary by Fraser.
Machine Learning Techniques and Models for Situation Awareness of IoT based Complex Systems
Creators: name: Santaniello, Domenico
Publisher: name: Universita degli studi di Salerno
Year: 2022
Subjects: subject: INF/01 INFORMATICA
subject: Internet of things
subject: Situation awareness
subject: Context Awareness

description: 2020 - 2021
description: The current reality is characterized by a solid technological and pervasive component. These elements are expressed through smart devices, which make the environments we live in pervasive and able to exchange information. An example is represented by Smart Cities, complex environments able to leverage large amounts of data from sensors based on the Internet of Things (IoT) paradigm. One of the current challenges is using this information to transform scenarios from complex to helpful for increasing human well-being. This objective can be achieved by acquiring Context-Awareness, analyzing information, and managing the environment through the Situation-Awareness paradigm. This Thesis aims to introduce a methodology with predictive capabilities and context adaptability for managing complex scenarios. The added value of the proposed approach is the introduction of the semantic value acquired from the Context and Situation Awareness through graph approaches, which, unlike many strategies used, leads to better integration of knowledge, obtaining higher system performance. In particular, a methodology for merging Ontologies, Context Dimension Trees, and probabilistic approaches based on Bayesian Networks will be presented to help experts and end-users handle events and provide suggestions for improving the liveability of smart complex scenarios. The proposed methodology has been validated and applied to several complex scenarios based on the IoT paradigm obtaining promising results. [edited by Author]
HIV Treatment as Prevention: The Utility and Limitations of Ecological Observation
Creators: name: Smith, M. Kumi
name: Powers, Kimberly A.
name: Cohen, Myron S.
name: Muessig, Kathryn E.
name: Miller, William C.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: Results from several observational studies of HIV-discordant couples and a randomized controlled trial (HIV Prevention Trials Network 052) show that antiretroviral therapy (ART) can greatly reduce heterosexual HIV transmission in stable HIV-discordant couples. However, such data do not prove that ART will reduce HIV incidence at the population level. Observational investigations using ecological measures have been used to support the implementation of HIV treatment for the specific purpose of preventing transmission at the population level. Many of these studies note ecological associations between measures of increased ART uptake and decreased HIV transmission. Given the urgency of implementing HIV prevention measures, ecological studies must de facto be used to inform current strategies. However, the hypothesis that widespread ART can eliminate HIV infection may have raised expectations beyond what we may be able to achieve. Here we review and discuss the construct of the exposure and outcome measures and analysis methods used in ecological studies. By examining the strengths and weaknesses of ecological analyses, we aim to aid understanding of the findings from these studies to inform future policy decisions regarding the use of ART for HIV prevention.
Identifying Outcomes Associated with the Injection of Platelet Rich Plasma (PRP) on Basal Thumb Osteoarthritis: A Systematic Review Protocol
Creators: name: Elsewify, Omar
name: Baradaran, Aslan
name: Legler, Jack
name: Barone, Natasha
name: Efanov, Johnny
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Medicine and Health Sciences
subject: Basal Thumb
subject: CMC OA
subject: Osteoarthritis
subject: Platelet Rich Plasma
subject: PRP injection
subject: Thumb

description: This is a protocol for a systematic review aimed at addressing the following research question: In patients with basal thumb arthritis (CMC OA) what are the outcomes associated with the injection of platelet rich plasma (PRP)?
Beneath the clay: the mid-nineteenth century raising of street and property levels in Jones Lane and Little Lonsdale Street, Melbourne
Creators: name: Cleary, Michelle Negus
name: Bajzelj, Nadia
name: Scibilia, Jasmine
name: Haas, Meg
name: Archaeology Program, La Trobe University
Publisher: name: La Trobe
Year: 2023

description: Blank
Trigonal-to-monoclinic structural transition in TiSe$_2$ due to a combined condensation of $\mathbf{ \textit{q} = (\frac{1}{2},0,0)}$ and $\mathbf{(\frac{1}{2},0,\frac{1}{2})}$ phonon instabilities
Creators: name: Subedi, Alaska
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: I present first principles calculations of the phonon dispersions of TiSe$_2$ in the $P\overline{3}c1$ phase, which is the currently accepted low-temperature structure of this material. They show weak instabilities in the acoustic branches in the out-of-plane direction, suggesting that this phase may not be the true ground state. To find the lowest energy structure, I study the energetics of all possible distorted structures corresponding to the isotropy subgroups of $P\overline{3}m1$ for the $M_1^-$ and $L_1^-$ phonon instabilities present in this high-temperature phase at $q = (\frac{1}{2},0,0)$ and $(\frac{1}{2},0,\frac{1}{2})$, respectively. I was able to stabilize 10 different structures that are lower in energy relative to the parent $P\overline{3}m1$ phase, including two monoclinic structures more energetically stable than the $P\overline{3}c1$ phase. The lowest energy structure has the space group $C2$ with the order parameter $M_1^- (a,0,0) + L_1^- (0,b,b)$. This structure lacks inversion symmetry, and its primitive unit cell has 12 atoms.
Canadian Gallup Poll # 256
Creators: name: Canadian Institute Of Public Opinion (Gallup)
Publisher: name: Roper Center for Public Opinion Research
Year: 2019

description: Federal election vote intent(1); past federal elections vote(1); marriage: ideal age, number of children(3); Sunday activities(13); old age pensions(2); physical examinations for drivers(2) labor unions(2); UN job performance(2); religion(3); party preference(1); famous buildings(7). Note: Demographics(14). Not included: family status, car.
Gradient Projection Newton Algorithm for Sparse Collaborative Learning Using Synthetic and Real Datasets of Applications
Creators: name: Sun, Jun
name: Kong, Lingchen
name: Zhou, Shenglong
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: Exploring the relationship among multiple sets of data from one same group enables practitioners to make better decisions in medical science and engineering. In this paper, we propose a sparse collaborative learning (SCL) model, an optimization with double-sparsity constraints, to process the problem with two sets of data and a shared response variable. It is capable of dealing with the classification problems or the regression problems dependent on the discreteness of the response variable as well as exploring the relationship between two datasets simultaneously. To solve SCL, we first present some necessary and sufficient optimality conditions and then design a gradient projection Newton algorithm which has proven to converge to a unique locally optimal solution globally with at least a quadratic convergence rate. Finally, the reported numerical experiments illustrate the efficiency of the proposed method.
Canadian Gallup Poll # 187
Creators: name: Canadian Institute Of Public Opinion (Gallup)
Publisher: name: Roper Center for Public Opinion Research
Year: 2019

description: Upcoming national elections: interest, vote intent, tasks for the new government(8); vote in past national elections(1); current party preference(2); government ownership of industries(6). Note: Demographics(12).Not included: religion, parents' country of origin.