cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Дипломатическая практика и образ дипломата в войнах раннего Нового времени (XVI-XVIII вв. ): институциональное измерение
Creators: name: Циватый Вячеслав Григорьевич
Publisher: name: Псковский военно-исторический вестник
Year: 2017
Subjects: ВНЕШНЯЯ ПОЛИТИКА
ДИПЛОМАТИЯ
МОДЕЛИ ДИПЛОМАТИИ
ИНСТИТУЦИОНАЛИЗАЦИЯ
ВОЙНА
ЕВРОПА
РАННЕЕ НОВОЕ ВРЕМЯ (XVI-XVIII ВВ.)
FOREIGN POLICY
DIPLOMACY
MODELS OF DIPLOMACY
INSTITUTIONALIZATION
WAR
EUROPE
EARLY MODERN PERIOD (XVI-XVIII CENTURIES)

description: В статье анализируется внешняя политика и дипломатия европейских государств раннего Нового времени (XVI-XVIII веков). Особое внимание уделяется институциональному развитию общественно-политической мысли и институционально-дипломатической практики в Западной и Центральной Европе. Особенное внимание уделено институциональному развитию дипломатических служб, дипломатическому инструментарию, переговорам, нормам протокола, этикета и церемониала ведущих государств Европы. Определены направления эволюции теории и практики дипломатии в исторической ретроспективе. Проанализированы профессиональные требования к дипломатам и государственным служащим, которые занимаются вопросами внешней политики, в контексте особенностей исторического периода их деятельности и преемственности дипломатической практики.The article deals with the analysis of the foreign policy and diplomacy of the European states of the early Modern period (XVI-XVIII centuries). Particular attention is given to the institutional development of public and political opinion as well as to the institutional and diplomatic practices in Western and Central Europe. Particular attention is paid to the institutional development of the diplomatic services, the diplomatic tools, standards of the protocol, the etiquette and the ceremony of the leading countries in Europe. The directions of the evolution of the theory and practice of diplomacy in historical perspective. The professional demands to the diplomats and government employees, who are engaged in the foreign policy in the context of particular historical period of their activities and continuity of diplomatic practice, are analyzed
Semi-Clifford operations, structure of $\mathcal{C}_k$ hierarchy, and gate complexity for fault-tolerant quantum computation
Creators: name: Zeng, Bei
name: Chen, Xie
name: Chuang, Isaac L.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Teleportation is a crucial element in fault-tolerant quantum computation and a complete understanding of its capacity is very important for the practical implementation of optimal fault-tolerant architectures. It is known that stabilizer codes support a natural set of gates that can be more easily implemented by teleportation than any other gates. These gates belong to the so called $\mathcal{C}_k$ hierarchy introduced by Gottesman and Chuang (Nature \textbf{402}, 390). Moreover, a subset of $\mathcal{C}_k$ gates, called semi-Clifford operations, can be implemented by an even simpler architecture than the traditional teleportation setup (Phys. Rev. \textbf{A62}, 052316). However, the precise set of gates in $\mathcal{C}_k$ remains unknown, even for a fixed number of qubits $n$, which prevents us from knowing exactly what teleportation is capable of. In this paper we study the structure of $\mathcal{C}_k$ in terms of semi-Clifford operations, which send by conjugation at least one maximal abelian subgroup of the $n$-qubit Pauli group into another one. We show that for $n=1,2$, all the $\mathcal{C}_k$ gates are semi-Clifford, which is also true for $\{n=3,k=3\}$. However, this is no longer true for $\{n>2,k>3\}$. To measure the capability of this teleportation primitive, we introduce a quantity called `teleportation depth', which characterizes how many teleportation steps are necessary, on average, to implement a given gate. We calculate upper bounds for teleportation depth by decomposing gates into both semi-Clifford $\mathcal{C}_k$ gates and those $\mathcal{C}_k$ gates beyond semi-Clifford operations, and compare their efficiency.
description: 13 pages, 10 figures
Metal-poor star formation triggered by the feedback effects from Pop III stars
Creators: name: Chiaki, Gen
name: Susa, Hajime
name: Hirano, Shingo
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Metal enrichment by the first-generation (Pop III) stars is the very first step of the matter cycle in the structure formation and it is followed by the formation of extremely metal-poor (EMP) stars. To investigate the enrichment process by the Pop III stars, we carry out a series of numerical simulations including the feedback effects of photoionization and supernovae (SNe) of Pop III stars with a range of masses of minihaloes (MHs), M_halo , and Pop III stars, M_PopIII . We find that the metal-rich ejecta reaches neighbouring haloes and external enrichment (EE) occurs when the halo binding energy is sufficiently below the SN explosion energy, E_SN . The neighbouring haloes are only superficially enriched, and the metallicity of the clouds is [Fe/H] < -5. Otherwise, the SN ejecta falls back and recollapses to form enriched cloud, i.e. internal enrichment (IE) process takes place. In case that a Pop III star explodes as a core-collapse SNe (CCSNe), MHs undergo IE, and the metallicity in the recollapsing region is -5 < [Fe/H] < -3 in most cases. We conclude that IE from a single CCSN can explain the formation of EMP stars. For pair-instability SNe (PISNe), EE takes place for all relevant mass range of MHs, consistent with no observational sign of PISNe among EMP stars.
description: 20 pages, 14 figures, 6 tables, accepted to MNRAS
Low Power Multiplier Using Approximate Adder for Error Tolerant Applications
Creators: name: Hemanth, C.
name: Sangeetha, R. G.
name: Kademani, Sagar
name: Ali, Meer Shahbaz
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Space Science
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Biotechnology
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified

description: In embedded applications and digital signal processing systems, multipliers are crucial components. In these applications, there is an increasing need for energy-efficient circuits. We use an approximate adder for error tolerance in the computational process to improve performance and reduce power consumption. Due to human perceptual constraints, computational errors do not significantly affect applications like image, audio, and video processing. Adiabatic logic (AL), which recycles energy, can also be used to build circuits that require less energy. In this work, we propose a carry save array multiplier employing an approximate adder based on CMOS logic and clocked CMOS adiabatic logic (CCAL) to conserve power. Additionally, using a precise full adder, multiplier parameters like average power and power delay product are calculated and compared with the multiplier. We performed simulations using 180 nm technology in Cadence Virtuoso.
title: Health data linkage workshop preliminary agenda
title: Health data linkage workshop : open the black box of linking electronic health data for research
titleType: AlternativeTitle
title: Preliminary agenda
titleType: AlternativeTitle
Creators: name: (:Unkn) Unknown
Publisher: name: Mountain Scholar
Year: 2021
Subjects: subject: Medical record linkage
subject: Workshops
subject: Medical Record Linkage
subject: Education

description: CCTSI CU Record Linkage collection of materials.
description: Morning session -- Afternoon session : breakouts.
Dark Matter implications of DAMA/LIBRA-phase2 results
Creators: name: Baum, Sebastian
name: Freese, Katherine
name: Kelso, Chris
Publisher: name: arXiv
Year: 2018
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Recently, the DAMA/LIBRA collaboration released updated results from their search for the annual modulation signal from Dark Matter (DM) scattering in the detector. Besides approximately doubling the exposure of the DAMA/LIBRA data set, the updated photomultiplier tubes of the experiment allow a lower recoil energy threshold of 1\,keV electron equivalent compared to the previous threshold of 2 keV electron equivalent. We study the compatibility of the observed modulation signal with DM scattering. Due to a conspiracy of multiple effects, the new data at low recoil energies is very powerful for testing the DM hypothesis. We find that canonical (isospin conserving) spin-independent DM-nucleon interactions are no longer a good fit to the observed modulation signal in the standard halo model. The canonical spin-independent case is disfavored by the new data, with best fit points of a DM mass of $\sim 8\,$GeV, disfavored by $5.2\,σ$, or a mass of $\sim 54\,$GeV, disfavored by $2.5\,σ$. Allowing for isospin violating spin independent interactions, we find a region with a good fit to the data with suppressed effective couplings to iodine for DM masses of $\sim 10\,$GeV. We also consider spin-dependent DM-nucleon interactions, which yield good fits for similar DM masses of $\sim 10\,$GeV or $\sim 45\,$GeV
description: 8 pages, 3 figures. v2: 10 pages, 5 figures. Updated to published DAMA/LIBRA-phase2 data, added results for spin-dependent WIMP-nucleon scattering, and additional references. v3: matches published version
Comment on: Stochastic local operations and classical communication Invariant and the residual entanglement for n qubits
Creators: name: Zha, XinWei
name: Song, HaiYang
name: Hu, MingLiang
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In a recent paper [Phys. Rev. A 76, 032304(2007)], Li et al. proposed the definition of the residual entanglement for n qubits by means of the Stochastic local operations and classical communication. Here we argue that their definition is not suitable for the case of odd-n qubits.
description: 3 pages, submitted to PRA
Cyclotron resonance and quantum oscillations of critical Fermi surfaces
Creators: name: Guo, Haoyu
name: Valentinis, Davide
name: Schmalian, Jörg
name: Sachdev, Subir
name: Patel, Aavishkar A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Kohn's theorem places strong constraints on the cyclotron response of Fermi liquids. Recent observations of a doping dependence in the cyclotron mass of La$_{2-x}$Sr$_x$CuO$_4$ (Legros et al., Phys. Rev. B 106, 195110 (2022)) are therefore surprising because the cyclotron mass can only be renormalized by large momentum umklapp interactions which are not expected to vary significantly with doping. We show that a version of Kohn's theorem continues to apply to disorder-free non-Fermi liquids with a critical boson near zero momentum. However, marginal Fermi liquids arising from a spatially random Yukawa coupling between the electrons and bosons do give rise to significant corrections to the cyclotron mass which we compute. This is the same theory which yields linear-in-temperature resistivity and other properties of strange metals at zero fields (Patel et al., Science 381, 790 (2023)).
description: 55 pages, 29 figures. (v2) Added new authors and new results. (v3) added panel (b) for Fig.15
Nanoparticle detection in an open-access silicon microcavity
Creators: name: Kuhn, Stefan
name: Wachter, Georg
name: Wieser, Franz-Ferdinand
name: Millen, James
name: Schneider, Michael
name: Schalko, Johannes
name: Schmid, Ulrich
name: Trupke, Michael
name: Arndt, Markus
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We report on the detection of free nanoparticles in a micromachined, open-access Fabry-Pérot microcavity. With a mirror separation of $130\,μ$m, a radius of curvature of $1.3\,$mm, and a beam waist of $12\,μ$m, the mode volume of our symmetric infrared cavity is smaller than $15\,$pL. The small beam waist, together with a finesse exceeding 34,000, enables the detection of nano-scale dielectric particles in high vacuum. This device allows monitoring of the motion of individual $150\,$nm radius silica nanospheres in real time. We observe strong coupling between the particles and the cavity field, a precondition for optomechanical control. We discuss the prospects for optical cooling and detection of dielectric particles smaller than $10\,$nm in radius and $1\times10^7\,$amu in mass.
description: 4 pages, 3 figures
A Bi-variant Variational Model for Diffeomorphic Image Registration with Relaxed Jacobian Determinant Constraints
Creators: name: Li, Yanyan
name: Chen, Ke
name: Chen, Chong
name: Zhang, Jianping
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences
subject: 54H30, 68U10, 94A08

description: Diffeomorphic registration is a widely used technique for finding a smooth and invertible transformation between two coordinate systems, which are measured using template and reference images. The point-wise volume-preserving constraint $\det(\nabla\bmφ(\bm{x})) =1$ is effective in some cases, but may be too restrictive in others, especially when local deformations are relatively large. This can result in poor matching when enforcing large local deformations. In this paper, we propose a new bi-variant diffeomorphic image registration model that introduces a soft constraint on the Jacobian equation $\det(\nabla\bmφ(\bm{x})) = f(\bm{x}) > 0$. This allows local deformations to shrink and grow within a flexible range $0<κ_{m}<\det(\nabla\bmφ(\bm{x}))<κ_{M}$. The Jacobian determinant of transformation is explicitly controlled by optimizing the relaxation function $f(\bm{x})$. To prevent deformation folding and improve the smoothness of the transformation, a positive constraint is imposed on the optimization of the relaxation function $f(\bm{x})$, and a regularizer is used to ensure the smoothness of $f(\bm{x})$. Furthermore, the positivity constraint ensures that $f(\bm{x})$ is as close to one as possible, which helps to achieve a volume-preserving transformation on average. We also analyze the existence of the minimizer for the variational model and propose a penalty-splitting algorithm with a multilevel strategy to solve this model. Numerical experiments demonstrate the convergence of the proposed algorithm and show that the positivity constraint can effectively control the range of relative volume without compromising the accuracy of the registration. Moreover, the proposed model generates diffeomorphic maps for large local deformations and outperforms several existing registration models in terms of performance.
description: 42 pages, Accepted to Applied Mathematical Modelling,130(2024)
Ideal simplicial volume of manifolds with boundary
Creators: name: Frigerio, Roberto
name: Moraschini, Marco
Publisher: name: arXiv
Year: 2018
Subjects: subject: Geometric Topology (math.GT)
subject: Algebraic Topology (math.AT)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: We define the ideal simplicial volume for compact manifolds with boundary. Roughly speaking, the ideal simplicial volume of a manifold $M$ measures the minimal size of possibly ideal triangulations of $M$ "with real coefficients", thus providing a variation of the ordinary simplicial volume defined by Gromov in 1982, the main difference being that ideal simplices are now allowed to appear in representatives of the fundamental class. We show that the ideal simplicial volume is bounded above by the ordinary simplicial volume, and that it vanishes if and only if the ordinary simplicial volume does. We show that, for manifolds with amenable boundary, the ideal simplicial volume coincides with the classical one, whereas for hyperbolic manifolds with geodesic boundary it can be strictly smaller. We compute the ideal simplicial volume of an infinite family of hyperbolic $3$-manifolds with geodesic boundary, for which the exact value of the classical simplicial volume is not known, and we exhibit examples where the ideal simplicial volume provides shaper bounds on mapping degrees than the classical simplicial volume.
description: 40 pages, 2 figures, some minor changes, to appear in International Mathematics Research Notices (IMRN)
Additional file 1: of End-of-life decisions and practices for very preterm infants in the Wallonia-Brussels Federation of Belgium
Creators: name: Aujoulat, Isabelle
name: SĂŠverine Henrard
name: Charon, Anne
name: Anne-Britt Johansson
name: Langhendries, Jean-Paul
name: Mostaert, Anne
name: DaniĂ¨Le Vermeylen
name: Verellen, Gaston
Publisher: name: figshare
Year: 2018
Subjects: subject: Medicine
subject: Molecular Biology
subject: Sociology
subject: FOS: Sociology
subject: Science Policy

description: Contains a printed version of the original online questionnaire in French. Authors are happy to help with the translation of the questionnaire on request. (PDF 103 kb)
Solutions of Adler's lattice equation associated with 2-cycles of the Backlund transformation
Creators: name: Atkinson, James
name: Nijhoff, Frank
Publisher: name: arXiv
Year: 2007
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: The BT of Adler's lattice equation is inherent in the equation itself by virtue of its multidimensional consistency. We refer to a solution of the equation that is related to itself by the composition of two BTs (with different Backlund parameters) as a 2-cycle of the BT. In this article we will show that such solutions are associated with a commuting one-parameter family of rank-2 (i.e., 2-variable), 2-valued mappings. We will construct the explicit solution of the mappings within this family and hence give the solutions of Adler's equation that are 2-cycles of the BT.
description: 10 pages, contribution to the NEEDS 2007 proceedings
Spectral Asymmetry of Atoms in the van der Waals Potential of an Optical Nanofiber
Creators: name: Patterson, B. D.
name: Solano, P.
name: Julienne, P. S.
name: Orozco, L. A.
name: Rolston, S. L.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We measure the modification of the transmission spectra of cold $^{87}$Rb atoms in the proximity of an optical nanofiber (ONF). Van der Waals interactions between the atoms an the ONF surface decrease the resonance frequency of atoms closer to the surface. An asymmetric spectra of the atoms holds information of their spatial distribution around the ONF. We use a far-detuned laser beam coupled to the ONF to thermally excite atoms at the ONF surface. We study the change of transmission spectrum of these atoms as a function of heating laser power. A semi-classical phenomenological model for the thermal excitation of atoms in the atom-surface van der Waals bound states is in good agreement with the measurements. This result suggests that van der Waals potentials could be used to trap and probe atoms at few nanometers from a dielectric surfaces, a key tool for hybrid photonic-atomic quantum systems.
Risk and restraint-The key to understanding the decreasing use of alcohol for young people in high income countries?
Creators: name: Pennay, Amy
name: Caluzzi, Gabriel
name: Livingston, Michael
name: MacLean, Sarah
Publisher: name: La Trobe
Year: 2024
Subjects: classificationCode: 42
subject: Health sciences
subject: FOS: Health sciences
classificationCode: 52
subject: Psychology
subject: FOS: Psychology
classificationCode: 44
subject: Human society

description: INTRODUCTION: In this article we seek to understand the changing social position of alcohol use for young people in Australia by identifying how alcohol has become framed as posing a significant risk to their bodies and futures. METHODS: Forty interviews were conducted with young people aged 18-21 years from Melbourne, Australia, who had previously identified as light drinkers or abstainers. Drawing on insights from contemporary sociologies of risk, we explored how risk was discussed as a governing concept that shaped young people's views of alcohol, and how it encouraged or necessitated risk-avoidance in daily life. RESULTS: Participants drew on a range of risk discourses in framing their abstention or moderate drinking along the lines of health, wellness, wisdom and productivity. They reiterated social constructions of heavy or regular alcohol use as irresponsible, threatening and potentially addictive. The focus on personal responsibility was striking in most accounts. Participants seemed to have routinised ways of practicing risk avoidance and coordinated drinking practices with other practices in their everyday life, with alcohol therefore 'competing for time'. DISCUSSION AND CONCLUSIONS: Our findings endorse the idea that discourses of risk and individual responsibility shape the contemporary socio-cultural value of alcohol for young people. Risk avoidance has become routine and is manifested through the practice of restraint and control. This appears particular to high-income countries like Australia, where concerns about young people's futures and economic security are increasing, and where neoliberal politics are the foundations of governmental ideology.
Spectrum Sensing and Resource Allocation for Frequency Hopping Based CRN Using Hazelnut Tree Search Algorithm
Creators: name: Kumar, P. Maniraj
name: Pandian, P. Nagarajan
name: Ramamoorthy, K.
name: Karthikeyan, S.
Publisher: name: Taylor & Francis
Year: 2025
Subjects: subject: Space Science
subject: Medicine
subject: Molecular Biology
subject: Pharmacology
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Plant Biology

description: This paper presents a novel spectrum sensing and resource allocation method for Cognitive Radio Networks (CRNs) using the Hazelnut Tree Search (HTS) algorithm in a frequency-hopping framework. CRNs enable secondary users (SUs) to utilize unused licensed spectrum without causing interference to primary users (PUs). The proposed Spectrum Sensing and Resource Allocation using Hazelnut Tree Search in CRN (SS-RA-HTS-CRN) method detects PU presence, prompting SUs to switch channels to avoid interference, guided by a designated guide node (GN). The HTS algorithm selects optimal sensing nodes and improves spectrum sensing, enhancing resource allocation reliability. Simulations in NS-3.26 show that SS-RA-HTS-CRN achieves delay reductions of 28.93%, 31.9%, and 22.45%, delivery ratio improvements of 28.21%, 17.41%, and 11.565%, and packet drop rate reductions of 35.4%, 44.3%, and 23.12% compared with Energy-Aware Resource Allocation with Backtracking Search Optimization (SS-RA-BSO-CRN), Spectrum Sensing with Hybrid Particle Swarm and Gravitational Search (SS-hybrid PSOGSA-CRN), and Spectrum Sensing using Modified Spider Monkey Optimization (SS-MSMO-CRN). The proposed SS-RA-HTS-CRN method significantly enhances efficiency, reliability, and adaptability in CRNs, making it a promising solution for dynamic spectrum management.
title: Health data linkage workshop morning session
title: Welcome to our record linkage workshop
titleType: AlternativeTitle
title: Welcome to our record linkage party
titleType: AlternativeTitle
Creators: name: (:Unkn) Unknown
Publisher: name: Mountain Scholar
Year: 2021
Subjects: subject: Medical record linkage
subject: Workshops
subject: Medical Record Linkage
subject: Education

description: From the Health Data Linkage Workshop: Open the Black Box of Linking Electronic Health Data for Research.
description: CCTSI CU Record Linkage collection of materials.
On weak and strong magnetohydrodynamic turbulence
Creators: name: Perez, Jean Carlos
name: Boldyrev, Stanislav
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: Fluid Dynamics (physics.flu-dyn)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Recent numerical and observational studies contain conflicting reports on the spectrum of magnetohydrodynamic turbulence. In an attempt to clarify the issue we investigate anisotropic incompressible magnetohydrodynamic turbulence with a strong guide field $B_0$. We perform numerical simulations of the reduced MHD equations in a special setting that allows us to elucidate the transition between weak and strong turbulent regimes. Denote $k_{\|}$, $k_\perp$ characteristic field-parallel and field-perpendicular wavenumbers of the fluctuations, and $b_λ$ the fluctuating field at the scale $λ\sim 1/k_{\perp}$. We find that when the critical balance condition, $k_{\|}B_0\sim k_{\perp} b_λ$, is satisfied, the turbulence is strong, and the energy spectrum is $E(k_{\perp})\propto k^{-3/2}_{\perp}$. As the $k_{\|}$ width of the spectrum increases, the turbulence rapidly becomes weaker, and in the limit $k_{\|}B_0\gg k_{\perp} b_λ$, the spectrum approaches $E(k_{\perp})\propto k_{\perp}^{-2}$. The observed sensitivity of the spectrum to the balance of linear and nonlinear interactions may explain the conflicting numerical and observational findings where this balance condition is not well controlled.
description: 4 pages, 2 figures
Large $\pt$ Hadroproduction of Heavy Quarks
Creators: name: Cacciari, M.
name: Greco, M.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The production of heavy quarks at large $\pt$ ($\pt\gg m$) in hadronic collisions is considered. The analysis is carried out in the framework of perturbative fragmentation functions, thereby allowing a resummation at the NLO level of final state large mass logarithms of the kind $\log(\pt/m)$. The case of $b$-quark production is considered in detail. The resulting theoretical uncertainty from factorization/renormalization scales at large $\pt$ is found to be much smaller than that shown by the full $O(\as^3)$ perturbative calculation.
description: LaTeX, 16 pages with 6 encapsulated postscript figures pasted in with epsf and sent in a separate uuencoded file. Other 14 figures are available from the authors, FNT/T-93/43
Frequency-modulated SSFP with radial sampling and subspace reconstruction: A time-efficient alternative to phase-cycled bSSFP
Creators: name: Roeloffs, Volkert
name: Rosenzweig, Sebastian
name: Holme, H. Christian M.
name: Uecker, Martin
name: Frahm, Jens
Publisher: name: arXiv
Year: 2018
Subjects: subject: Medical Physics (physics.med-ph)
subject: FOS: Physical sciences

description: Purpose: A novel subspace-based reconstruction method for frequency-modulated balanced steady-state free precession (fmSSFP) MRI is presented. In this work, suitable data acquisition schemes, subspace sizes, and efficiencies for banding removal are investigated. Theory and Methods: By combining a fmSSFP MRI sequence with a 3D stack-of-stars trajectory, scan efficiency is maximized as spectral information is obtained without intermediate preparation phases. A memory-efficient reconstruction routine is implemented by introducing the low-frequency Fourier transform as a subspace which allows for the formulation of a convex reconstruction problem. The removal of banding artifacts is investigated by comparing the proposed acquisition and reconstruction technique to phase-cycled bSSFP MRI. Aliasing properties of different undersampling schemes are analyzed and water/fat separation is demonstrated by reweighting the reconstructed subspace coefficients to generate virtual spectral responses in a post-processing step. Results: A simple root-of-sum-of-squares combination of the reconstructed subspace coefficients yields high-SNR images with the characteristic bSSFP contrast but without banding artifacts. Compared to Golden-Angle trajectories, turn-based sampling schemes were superior in minimizing aliasing across reconstructed subspace coefficients. Water/fat separated images of the human knee were obtained by reweighting subspace coefficients. Conclusion: The novel subspace-based fmSSFP MRI technique emerges as a time-efficient alternative to phase-cycled bSSFP. The method does not need intermediate preparation phases, offers high SNR and avoids banding artifacts. Reweighting of the reconstructed subspace coefficients allows for generating virtual spectral responses with applications to water/fat separation.
Spectrum Sensing and Resource Allocation for Frequency Hopping Based CRN Using Hazelnut Tree Search Algorithm
Creators: name: Kumar, P. Maniraj
name: Nagarajan, P.
name: Ramamoorthy, K.
name: Karthikeyan, S.
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Space Science
subject: Medicine
subject: Molecular Biology
subject: Pharmacology
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Plant Biology

description: This paper presents a novel spectrum sensing and resource allocation method for Cognitive Radio Networks (CRNs) using the Hazelnut Tree Search (HTS) algorithm in a frequency-hopping framework. CRNs enable secondary users (SUs) to utilize unused licensed spectrum without causing interference to primary users (PUs). The proposed Spectrum Sensing and Resource Allocation using Hazelnut Tree Search in CRN (SS-RA-HTS-CRN) method detects PU presence, prompting SUs to switch channels to avoid interference, guided by a designated guide node (GN). The HTS algorithm selects optimal sensing nodes and improves spectrum sensing, enhancing resource allocation reliability. Simulations in NS-3.26 show that SS-RA-HTS-CRN achieves delay reductions of 28.93%, 31.9%, and 22.45%, delivery ratio improvements of 28.21%, 17.41%, and 11.565%, and packet drop rate reductions of 35.4%, 44.3%, and 23.12% compared with Energy-Aware Resource Allocation with Backtracking Search Optimization (SS-RA-BSO-CRN), Spectrum Sensing with Hybrid Particle Swarm and Gravitational Search (SS-hybrid PSOGSA-CRN), and Spectrum Sensing using Modified Spider Monkey Optimization (SS-MSMO-CRN). The proposed SS-RA-HTS-CRN method significantly enhances efficiency, reliability, and adaptability in CRNs, making it a promising solution for dynamic spectrum management.
Island instability as a mechanism of destabilization and collapse of current sheets
Creators: name: Shaikhislamov, I F
Publisher: name: arXiv
Year: 2017
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The work shows that a single elongated island immersed in the quasi-neutral current sheet makes it MHD unstable. Typical values of growth rate are found to be several per cent of inverse Alfven time for broad sheets. Hall dynamics greatly enhance instability and growth rate reaches one-tenth of ion cyclotron frequency when sheet width is comparable to ion inertia length. A weak square-root dependence of increment on island width and length is derived both from numerical simulation and analytical analysis. At the non-linear phase of evolution a phenomenon of fast impulsive intensification of current is found. After finite time of about 10 ion-cyclotron periods it ends by a collapse of the sheet. It is shown that Hall dynamics is responsible for such a behaviour. Possible implications for magnetotail substorms are discussed.
title: Galaxy cluster formation from the large-scale structure: a case study of the Abell 2125 complex at z=0.247
Creators: name: Wang, QD
name: Owen, F
name: Ledlow, M
name: Keel, W
Publisher: name: University of Massachusetts Amherst
Year: 2004
Subjects: subject: Astrophysics and Astronomy

description: This is the pre-published version harvested from ArXiv. The published version is located at http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=250765
description: The structure of the universe is believed to have formed by clustering hierarchically from small to large scales. Much of this evolution occurs very slowly but at a few special times more rapid, violent activity may occur as major subunits collide at high velocities. The Abell 2125 complex ($z=0.247$) appears to be undergoing such an event as shown by modeling of the optical velocity field and by the detection with the VLA of an unusually large number of associated radio active galaxies. We present an 80 ksec Chandra imaging of Abell 2125, together with extensive complementary multi-wavelength data. We show direct evidence for galaxy transformation and destruction during the cluster formation. The Chandra data unambiguously separate the X-ray contributions from discrete sources and large-scale diffuse gas in the Abell 2125 complex, which consists of various merging clusters/groups of galaxies and low-surface brightness emission. This enables us to study processes affecting galaxy evolution during this special time from scales of Mpc down to a few kpc. The overall level of activity plus the special time for the cluster-cluster merger suggests that an important phase of galaxy evolution can take place during such events.
Dark photon portal dark matter with the 21-cm anomaly
Creators: name: Jia, Lian-Bao
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: A strong absorption profile was reported by the EDGES Collaboration, which indicates the hydrogen gas being colder than expected. It could be signatures of non-gravitational interactions between normal matter and dark matter (DM), and a potential explanation is that a small fraction of millicharged DM scatters with normal matter, with the DM mass in tens of MeV. To obtain the small fraction of millicharged DM and meanwhile being tolerant with by the constraints, the dark photon portal scalar and vector millicharged DM are explored in this paper. We consider that the mass of dark photon is slightly above twice of the millicharged DM mass, and thus the millicharged DM predominantly annihilates in p-wave during the freeze-out period, with the annihilation being enhanced near the resonance. The dark photon mainly decays into millicharged DM, and couplings of dark photon with SM particles could be allowed by the lepton collision experiments. The corresponding parameter spaces are derived. Future lepton collision experiments can be employed to search for millicharged DM via the production of the invisible dark photon.
description: 6 pages, 2 figures, discussions added, the accepted version, EPJC
title: iPPRL value proposition design customer discovery phone interviews : data manager/technician
title: Data manager/technician
titleType: AlternativeTitle
title: Data manager technician
titleType: AlternativeTitle
Creators: name: (:Unkn) Unknown
Publisher: name: Mountain Scholar
Year: 2021
Subjects: subject: Medical record linkage
subject: Questionnaires
subject: Medical Record Linkage
subject: Data Management
subject: Surveys and Questionnaires

description: CCTSI CU Record Linkage collection of materials.
description: Eligibility -- Introduction -- Customer jobs -- Customer pains -- Customer gains -- Record linkage solutions and processes (if relevant) -- Closing.
The TAP-Plefka variational principle for the spherical SK model
Creators: name: Belius, David
name: Kistler, Nicola
Publisher: name: arXiv
Year: 2018
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 60K40, 82B44, 82D30

description: We reinterpret the Thouless-Anderson-Palmer approach to mean field spin glass models as a variational principle in the spirit of the Gibbs variational principle and the Bragg-Williams approximation. We prove this TAP-Plefka variational principle rigorously in the case of the spherical Sherrington-Kirkpatrick model.
Properties of Green Valley Galaxies at Redshift of Z < 0.1 in Relation to their Selection Criteria
Creators: name: Nyiransengiyumva, Beatrice
name: Mirjana Povi ́c
name: Pheneas Nkundabakura
name: Mahoro, Antoine
Publisher: name: Zenodo
Year: 2019
Subjects: galaxies: active
galaxies: star formation
galaxies: fundamental parameters
galaxies: evolution
ultraviolet: galaxies

description: The bi-modality in the distribution of galaxies usually obtained from color-color or color-mass
 diagrams has been studied to show the difference between the "blue cloud" and "red sequence"
 galaxies and to define the Green Valley (GV) region. However, there are still many open
 questions regarding the importance of the green valley for understanding the morphological
 transformation and evolution of galaxies, how galaxies change from late-type to early-type
 and the role of AGN in galaxy formation and evolution scenario especially in the green valley.
 The study focused on studying in more details different green valley selection criteria used
 in previous works as well as differences between them and how the initial selection of green
 valley galaxies could affect the final results and conclusions. The main findings were that by
 selecting the GV galaxies based on UV or optical data we are selecting different types of
 galaxies in terms of their stellar masses, luminosities, SFRs and morphological classification
 where the stellar mass was higher in GV samples selected in UV than the GV samples selected
 in optical while the star formation rate as well as the specific star formation rate were higher in
 GV samples selected in optical than the GV samples selected in UV, the difference were more
 significant for color criteria. The morphological classification of the GV selected samples
 have been obtained and galaxies were classified into spirals, ellipticals and uncertain galaxies
 and the results suggested that most of the objects in the GV are spirals or have an uncertain
 visual morphology.
title: Record linkage for investigators
Creators: name: (:Unkn) Unknown
Publisher: name: Mountain Scholar
Year: 2021
Subjects: subject: Medical record linkage
subject: Medical Record Linkage

description: CCTSI CU Record Linkage collection of materials.
description: Overview -- Establish opportunity and value of record linkage -- Determine feasibility of patient and data matching -- Select and describe linkage method -- Establish resources, timeline and approvals -- Execute record linkage using CURL.
Competing itinerant and local spin interactions in kagome metal FeGe
Creators: name: Chen, Lebing
name: Teng, Xiaokun
name: Tan, Hengxin
name: Winn, Barry L.
name: Granorth, Garrett E.
name: Ye, Feng
name: Yu, D. H.
name: Mole, R. A.
name: Gao, Bin
name: Yan, Binghai
name: Yi, Ming
name: Dai, Pengcheng
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Two-dimensional kagome metals consisting of corner-sharing triangles offer a unique platform for studying strong electron correlations and band topology due to its geometrically frustrated lattice structure. The similar energy scales between spin, lattice, and electronic degrees of freedom in these systems give rise to competing quantum phases such as charge density wave (CDW), magnetic order, and superconductivity. For example, kagome metal FeGe first exhibits A-type collinear antiferromagnetic (AFM) order at T_N ~ 400 K, then establishes a CDW phase coupled with AFM ordered moment below T_CDW ~ 100 K, and finally forms a $c$-axis double cone AFM structure around T_Canting ~ 60 K. Here we use neutron scattering to demonstrate the presence of gapless incommensurate spin excitations associated with the double cone AFM structure at temperatures well above T_Canting and T_CDW that merge into gapped commensurate spin waves from the A-type AFM order. While commensurate spin waves follow the Bose population factor and can be well described by a local moment Heisenberg Hamiltonian, the incommensurate spin excitations first appear below T_N where AFM order is commensurate, start to deviate from the Bose population factor around T_CDW, and peaks at T_Canting, consistent with a critical scattering of a second order magnetic phase transition, as a function of decreasing temperature. By comparing these results with density functional theory calculations, we conclude that the incommensurate magnetic structure arises from the nested Fermi surfaces of itinerant electrons and the formation of a spin density wave order. The temperature dependence of the incommensurate spin excitations suggests a coupling between spin density wave and CDW order, likely due to flat electronic bands near the Fermi level around T_N and associated electron correlation effects.
description: Submitted for publication in April 2023
Risk and restraint-The key to understanding the decreasing use of alcohol for young people in high income countries?
Creators: name: Pennay, Amy
name: Caluzzi, Gabriel
name: Livingston, Michael
name: MacLean, Sarah
Publisher: name: La Trobe
Year: 2023
Subjects: classificationCode: 42
subject: Health sciences
subject: FOS: Health sciences
classificationCode: 52
subject: Psychology
subject: FOS: Psychology
classificationCode: 44
subject: Human society

description: INTRODUCTION: In this article we seek to understand the changing social position of alcohol use for young people in Australia by identifying how alcohol has become framed as posing a significant risk to their bodies and futures. METHODS: Forty interviews were conducted with young people aged 18-21 years from Melbourne, Australia, who had previously identified as light drinkers or abstainers. Drawing on insights from contemporary sociologies of risk, we explored how risk was discussed as a governing concept that shaped young people's views of alcohol, and how it encouraged or necessitated risk-avoidance in daily life. RESULTS: Participants drew on a range of risk discourses in framing their abstention or moderate drinking along the lines of health, wellness, wisdom and productivity. They reiterated social constructions of heavy or regular alcohol use as irresponsible, threatening and potentially addictive. The focus on personal responsibility was striking in most accounts. Participants seemed to have routinised ways of practicing risk avoidance and coordinated drinking practices with other practices in their everyday life, with alcohol therefore 'competing for time'. DISCUSSION AND CONCLUSIONS: Our findings endorse the idea that discourses of risk and individual responsibility shape the contemporary socio-cultural value of alcohol for young people. Risk avoidance has become routine and is manifested through the practice of restraint and control. This appears particular to high-income countries like Australia, where concerns about young people's futures and economic security are increasing, and where neoliberal politics are the foundations of governmental ideology.
title: Designing for dissemination of an electronic health record linkage method : stakeholder perceptions of an animated explainer video
title: Stakeholder perceptions of an animated explainer video
titleType: AlternativeTitle
Creators: name: Reno, Jenna
name: Kwan, Bethany
name: Voong, Chan
name: Ong, Toan
Publisher: name: Mountain Scholar
Year: 2021
Subjects: subject: Medical record linkage
subject: Medical Record Linkage
subject: Instructional Film and Video
subject: Information Dissemination

description: "Engaging stakeholders throughout the entire process is vital to designing effective messages and dissemination strategies for novel data science methods" -- Center of poster.
description: This item is not conformant with WCAG 2.1 level AA due to condition of original. Contact the library for more information.
description: CCTSI CU Record Linkage collection of materials.
description: Background -- Methods -- Results -- Implications for research -- Next steps.
A practical tutorial on autoencoders for nonlinear feature fusion: Taxonomy, models, software and guidelines
Creators: name: Charte, David
name: Charte, Francisco
name: García, Salvador
name: del Jesus, María J.
name: Herrera, Francisco
Publisher: name: arXiv
Year: 2018
Subjects: subject: Machine Learning (cs.LG)
subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: Many of the existing machine learning algorithms, both supervised and unsupervised, depend on the quality of the input characteristics to generate a good model. The amount of these variables is also important, since performance tends to decline as the input dimensionality increases, hence the interest in using feature fusion techniques, able to produce feature sets that are more compact and higher level. A plethora of procedures to fuse original variables for producing new ones has been developed in the past decades. The most basic ones use linear combinations of the original variables, such as PCA (Principal Component Analysis) and LDA (Linear Discriminant Analysis), while others find manifold embeddings of lower dimensionality based on non-linear combinations, such as Isomap or LLE (Linear Locally Embedding) techniques. More recently, autoencoders (AEs) have emerged as an alternative to manifold learning for conducting nonlinear feature fusion. Dozens of AE models have been proposed lately, each with its own specific traits. Although many of them can be used to generate reduced feature sets through the fusion of the original ones, there also AEs designed with other applications in mind. The goal of this paper is to provide the reader with a broad view of what an AE is, how they are used for feature fusion, a taxonomy gathering a broad range of models, and how they relate to other classical techniques. In addition, a set of didactic guidelines on how to choose the proper AE for a given task is supplied, together with a discussion of the software tools available. Finally, two case studies illustrate the usage of AEs with datasets of handwritten digits and breast cancer.
Motifs in earthquake networks: Romania, Italy, United States of America, and Japan
Creators: name: Pană, Gabriel Tiberiu
name: Nicolin-Żaczek, Alexandru
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Geophysics (physics.geo-ph)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: We present a detailed description of seismic activity in Romania, Italy, and Japan, as well as the California seismic zone in the United States of America, based on the statistical analysis of the underlying earthquake networks used to model the aforementioned zones. Our results on network connectivity and simple network motifs allow for a complex description of seismic zones, while at the same time reinforcing the current understanding of seismicity as a critical phenomenon. The reported distributions on node connectivity, three-, and four-event motifs are consistent with power-law, i.e., scale-free, distributions over large intervals and are robust across earthquake networks obtained from different discretizations of the seismic zones of interest. In our analysis of the distributions of node connectivity and simple motifs, we distinguish between the global distribution and the powerlaw part of it with the help of maximum likelihood estimation (MLE) method and complementary cumulative distribution functions (CCDF). The main message is that the distributions reported for the aforementioned seismic zones have large power-law components, extending over some orders of magnitude, independent of discretization. All the results were obtained using publicly-available databases and open-source software, as well as a new toolbox available on GitHub, specifically designed to automatically analyze earthquake databases.
description: 11 pages, 15 figures