cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Worm quantum Monte-Carlo study of phase diagram of extended Jaynes-Cummings-Hubbard model
Creators: name: Wei, Huanhuan
name: Zhang, Jie
name: Greschner, Sebastian
name: Scott, Tony C
name: Zhang, Wanzhou
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Herein, we study the extended Jaynes-Cummings-Hubbard model mainly by the large-scale worm quantum Monte-Carlo method to check whether or not a light supersolid phase exists in various geometries, such as the one-dimensional chain, square lattices and triangular lattices. To achieve our purpose, the ground state phase diagrams are investigated. For the one-dimensional chain and square lattices, a first-order transition occurs between the superfluid phase and the solid phase and therefore there is no stable supersolid phase existing in these geometries. Interestingly, soliton/beats of the local densities arise if the chemical potential is adjusted in the finite-size chain. However, this soliton-superfluid coexistence can not be considered as a supersolid in the thermodynamic limit. Searching for a light supersolid, we also studied the Jaynes-Cummings-Hubbard model on triangular lattices, and the phase diagrams are obtained. Through measurement of the structural factor, momentum distribution and superfluid stiffness for various system sizes, a supersolid phase exists stably in the triangular lattices geometry and the regime of the supersolid phase is smaller than that of the mean field results. The light supersolid in the Jaynes-Cummings-Hubbard model is attractive because it has superreliance, which is absent in the pure Bose-Hubbard model. We believe the results in this paper could help search for new novel phases in cold-atom experiments
description: 10 pages, 13 figures
The effects of phonological intervention on morphosyntactic development in preschool children with phonological and morphosyntactic disorders
Creators: name: Bopp, Karen Dorothy
Publisher: name: University of British Columbia
Year: 2009

description: This study examines the effects of direct (nonlinear) phonological intervention on phonological and morphosyntactic development for children severely impaired in both domains. Subjects were 9 children aged 3 to 4 years. Seven had severe phonological and morphosyntactic production disorders (treatment group) and two had only a severe phonological disorder (control reference subjects). Phonological measures used were Percentage Consonants Correct (PCC), plus nonlinear word shape and feature analyses. Language observations used were MLU, Index of Productive Syntax (IPSyn), Brown's stages, morphological analysis and Mean Length of Longest Utterance (MLUL). Results indicate an influence of phonological intervention on morphosyntactic development for the subjects with both disorders. All subjects improved on their phonological measures. On the language measures, only those with severe disorders in both domains displayed notable improvement. Targeting the phonological domain in therapy may be a cost-effective way to conduct treatment for at least some children with severe phonological and morphosyntactic production impairments.
Three samples of 100 parallel retrievals
Creators: name: Song, Lifu
Publisher: name: figshare
Year: 2021
Subjects: subject: Uncategorized
subject: 80301 Bioinformatics Software
subject: FOS: Computer and information sciences
subject: 60102 Bioinformatics

description: Three data samples of 100 parallel data retrievals of DNA data storage . The sequencing technology is Illumina PE150.
Exploration in Algorithm Engineering: Modeling Algorithms
Creators: name: Al-Fedaghi, Sabah
Publisher: name: arXiv
Year: 2020
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: According to some algorithmicists, algorithmics traditionally uses algorithm theory, which stems from mathematics. The growing need for innovative algorithms has caused increasing gaps between theory and practice. Originally, this motivated the development of algorithm engineering, which is viewed as experimental techniques related to software engineering. Currently, algorithm engineering is a methodology for algorithmic research that combines theory with implementation and experimentation in order to produce better algorithms with high practical impact. Still, researchers have questioned whether the notion of algorithms can be defined in a fully generable way and discussed what kinds of entities algorithms actually are. They have also struggled to maintain a view that formulates algorithms mathematically (e.g., Turing machines and finite-state machines [FSMs]) while adapting a more applied view. Answering the question of what algorithms have practical applications in software specifications in particular, this paper proposes a diagrammatical definition of an algorithm based on a new modeling machine called a thinging machine (TM). The machine has five actions (e.g., create, process, release, transfer, and receive) that can form a network of machines. The paper explores the application of the definition in Turing machines and FSMs. The results point to the fact that the proposed definition can serve as a middle-ground representation of algorithms, a definition which is between formal specification and the commonly used informal definition (e.g., set of instructions).
description: 13 pages, 27 figures
Digital-analog quantum genetic algorithm using Rydberg-atom arrays
Creators: name: Llenas, Aleix
name: Lamata, Lucas
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: Emerging Technologies (cs.ET)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Digital-analog quantum computing (DAQC) combines digital gates with analog operations, offering an alternative paradigm for universal quantum computation. This approach leverages the higher fidelities of analog operations and the flexibility of local single-qubit gates. In this paper, we propose a quantum genetic algorithm within the DAQC framework using a Rydberg-atom emulator. The algorithm employs single-qubit operations in the digital domain and a global driving interaction based on the Rydberg Hamiltonian in the analog domain. We evaluate the algorithm performance by estimating the ground-state energy of Hamiltonians, with a focus on molecules such as $\rm H_2$, $\rm LiH$, and $\rm BeH_2$. Our results show energy estimations with less than 1% error and state overlaps nearing 1, with computation times ranging from a few minutes for $\rm H_2$ (2-qubit circuits) to one to two days for $\rm LiH$ and $\rm BeH_2$ (6-qubit circuits). The gate fidelities of global analog operations further underscore DAQC as a promising quantum computing strategy in the noisy intermediate-scale quantum era.
description: 13 pages, 14 figures
Bayesian Estimation of Hardness Ratios: Modeling and Computations
Creators: name: Park, Taeyoung
name: Kashyap, Vinay L.
name: Siemiginowska, Aneta
name: van Dyk, David A.
name: Zezas, Andreas
name: Heinke, Craig
name: Wargelin, Bradford J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A commonly used measure to summarize the nature of a photon spectrum is the so-called Hardness Ratio, which compares the number of counts observed in different passbands. The hardness ratio is especially useful to distinguish between and categorize weak sources as a proxy for detailed spectral fitting. However, in this regime classical methods of error propagation fail, and the estimates of spectral hardness become unreliable. Here we develop a rigorous statistical treatment of hardness ratios that properly deals with detected photons as independent Poisson random variables and correctly deals with the non-Gaussian nature of the error propagation. The method is Bayesian in nature, and thus can be generalized to carry out a multitude of source-population--based analyses. We verify our method with simulation studies, and compare it with the classical method. We apply this method to real world examples, such as the identification of candidate quiescent Low-mass X-ray binaries in globular clusters, and tracking the time evolution of a flare on a low-mass star.
description: 43 pages, 10 figures, 3 tables; submitted to ApJ
Need to revisit potassium soil test methods: ammonium acetate method does not correlate with tuber yield and potassium uptake in potato
Creators: name: Pandher, Lovedeep Kaur
name: Sekhon, Bharpoor Singh
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Cell Biology
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Plant Biology

description: The study was driven by concerns regarding lack of response to K applied as per existing soil test based fertilizer recommendations in case of the potato crop in northwest India. Geo-tagged surface soil (0-15 cm) samples 180 were collected from three (60 each) different fields (named A, B and C) followed by pot experiment involving potato planted to 30 different surface (0-15 cm) soils using two K levels (0 and 60 kg K2O ha−1). Cate-Nelson (CN) model, and non-linear segmented linear-plateau (LP) and quadratic-plateau (QP) models were used to compute critical K levels by relating relative yield with soil test K using five different methods: 1 M ammonium acetate (AA K), ammonium bicarbonate-diethylenetriamine pentaacetic acid (AB-DTPA), Mehlich-3, sodium tetraphenylboron (STPB) and 1 M boiling nitric acid. These were validated by conducting fertilizer response trials (six K fertilizer levels- 0, 15, 30, 45, 60 and 90 kg K2O ha−1) at four sites. AA K correlated with other soil K extractants in the order: AB-DTPA (r = 0.93**, 0.27* and 0.67**)> STPB K (r = 0.71**, 0.27* and 0.39**) whereas AA K generally did not show any correlation with HNO3 K. AAK method was poorly correlated with yield and plant K uptake (r = 0.15, 0.24, respectively) in comparison to AB-DTPA (r = 0.75**, 0.64**), Mehlich-3 (r = 0.78**, 0.72**), STPB (0.58**, 0.76**) and nitric acid method (0.55**, 0.44*). Thus, multi-nutrient extractants like AB-DTPA and Mehlich-3 are better (than AAK) indices of plant available K.
A generalization on derivations of Lie algebras
Creators: name: Chang, Hongliang
name: Chen, Yin
name: Zhang, Runxuan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Rings and Algebras (math.RA)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We initiate a study on a range of new generalized derivations of finite-dimensional Lie algebras over an algebraically closed field of characteristic zero. This new generalization of derivations has an analogue in the theory of associative prime rings and unites many well-known generalized derivations that have already appeared extensively in the study of Lie algebras and other nonassociative algebras. After exploiting fundamental properties, we introduce and analyze their interiors, especially focusing on the rationality of the corresponding Hilbert series. Applying techniques in computational ideal theory we develop an approach to explicitly compute these new generalized derivations for the three-dimensional special linear Lie algebra over the complex field.
description: 17 pages; to appear in Electronic Research Archive
Optimal Paths in Complex Networks with Correlated Weights: The World-wide Airport Network
Creators: name: Wu, Zhenhua
name: Braunstein, Lidia A.
name: Colizza, Vittoria
name: Cohen, Reuven
name: Havlin, Shlomo
name: Stanley, H. Eugene
Publisher: name: arXiv
Year: 2006
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Computational Physics (physics.comp-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: We study complex networks with weights, $w_{ij}$, associated with each link connecting node $i$ and $j$. The weights are chosen to be correlated with the network topology in the form found in two real world examples, (a) the world-wide airport network, and (b) the {\it E. Coli} metabolic network. Here $w_{ij} \sim x_{ij} (k_i k_j)^α$, where $k_i$ and $k_j$ are the degrees of nodes $i$ and $j$, $x_{ij}$ is a random number and $α$ represents the strength of the correlations. The case $α> 0$ represents correlation between weights and degree, while $α< 0$ represents anti-correlation and the case $α= 0$ reduces to the case of no correlations. We study the scaling of the lengths of the optimal paths, $\ell_{\rm opt}$, with the system size $N$ in strong disorder for scale-free networks for different $α$. We calculate the robustness of correlated scale-free networks with different $α$, and find the networks with $α< 0$ to be the most robust networks when compared to the other values of $α$. We propose an analytical method to study percolation phenomena on networks with this kind of correlation. We compare our simulation results with the real world-wide airport network, and we find good agreement.
Bopp operators and phase-space spin dynamics: Application to rotational quantum brownian motion
Creators: name: Zueco, D.
name: Calvo, Ivan
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: As already known for nonrelativistic spinless particles, Bopp operators give an elegant and simple way to compute the dynamics of quasiprobability distributions in the phase space formulation of Quantum Mechanics. In this work, we present a generalization of Bopp operators for spins and apply our results to the case of open spin systems. This approach allows to take the classical limit in a transparent way, recovering the corresponding Fokker-Planck equation.
description: Some typos corrected. Published version
Integer-only Quantized Transformers for Embedded FPGA-based Time-series Forecasting in AIoT
Creators: name: Ling, Tianheng
name: Qian, Chao
name: Schiele, Gregor
Publisher: name: arXiv
Year: 2024
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: This paper presents the design of a hardware accelerator for Transformers, optimized for on-device time-series forecasting in AIoT systems. It integrates integer-only quantization and Quantization-Aware Training with optimized hardware designs to realize 6-bit and 4-bit quantized Transformer models, which achieved precision comparable to 8-bit quantized models from related research. Utilizing a complete implementation on an embedded FPGA (Xilinx Spartan-7 XC7S15), we examine the feasibility of deploying Transformer models on embedded IoT devices. This includes a thorough analysis of achievable precision, resource utilization, timing, power, and energy consumption for on-device inference. Our results indicate that while sufficient performance can be attained, the optimization process is not trivial. For instance, reducing the quantization bitwidth does not consistently result in decreased latency or energy consumption, underscoring the necessity of systematically exploring various optimization combinations. Compared to an 8-bit quantized Transformer model in related studies, our 4-bit quantized Transformer model increases test loss by only 0.63%, operates up to 132.33x faster, and consumes 48.19x less energy.
description: Accepted by 2024 IEEE Annual Congress on Artificial Intelligence of Things (IEEE AIoT) and got best paper award. 7 pages, 3 figures, 4 tables
Relative velocities among accreting planetesimals in binary systems: the circumprimary case
Creators: name: Thebault, P.
name: Marzari, F.
name: Scholl, H.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate classical planetesimal accretion in a binary star system of separation ab<50AU by numerical simulations, with particular focus on the region at a distance of 1 AU from the primary. The planetesimals orbit the primary, are perturbed by the companion and are in addition subjected to a gas drag force. We concentrate on the problem of relative velocities dv among planetesimals of different sizes. For various stellar mass ratios and binary orbital parameters we determine regions where dv exceed planetesimal escape velocities v_esc (thus preventing runaway accretion) or even the threshold velocity v_ero for which erosion dominates accretion. Gaseous friction has two crucial effects on the velocity distribution: it damps secular perturbations by forcing periastron alignment of orbits, but at the same time the size--dependence of this orbital alignment induces a significant dv increase between bodies of different sizes. This differential phasing effect proves very efficient and almost always increases dv to values preventing runaway accretion, except in a narrow domain of almost circular companion orbits. The erosion threshold dv>v_ero is reached in a wide (ab,eb) space for small (<10km) planetesimals, but in a much more limited region for bigger ~50km objects. In the intermediate v_esc
description: to appear in Icarus (accepted 30 january 2006)
Neutrinos; Opportunities and Strategies in the Future
Creators: name: Minakata, Hisakazu
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: I try to give an overview of future prospects of the experimental exploration of the unknowns in the neutrino mass pattern and the lepton flavor mixing. Because of the nature of the lectures on which this manuscript is based, I give some pedagogical discussions to prepare for the presentation in the later part. I start from measuring θ_{13} by reactors and accelerators as a prerequisite for proceeding to search for leptonic CP violation. I then discuss how CP violation can be uncovered, and how the neutrino mass hierarchy can be determined. I do these by resolving so called the ``parameter degeneracy'' which is necessary anyway if one wants to seek precision measurement of the lepton mixing parameters. As a concrete setting for resolving the degeneracy I introduce the Tokai-to-Kamioka-Korea two detector complex which receives neutrino superbeam from J-PARC, sometimes dubbed as ``T2KK''. It is shown that T2KK is able to resolve all the eight-fold parameter degeneracy in a wide range of the lepton mixing parameters. I also discuss an alternative way for lifting the θ_{23} octant degeneracy by reactor-accelerator combined method. Finally, I discuss by taking some examples how some theoretically or phenomenologically motivated ideas can be tested experimentally.
description: Comments 27 pages, 13 figures, Combined and slightly expanded written version of the invited talks given at International Conference ``Heavy Quarks and Leptons'', Munich, Germany, October 16-20, 2006, and Second World Summit on ``Physics Beyond the Standard Model'', Galapagos Islands, Ecuador, June 22-25, 2006 (post-deadline version)
Transfer Learning as an Enabler of the Intelligent Digital Twin
Creators: name: Maschler, Benjamin
name: Braun, Dominik
name: Jazdi, Nasser
name: Weyrich, Michael
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Digital Twins have been described as beneficial in many areas, such as virtual commissioning, fault prediction or reconfiguration planning. Equipping Digital Twins with artificial intelligence functionalities can greatly expand those beneficial applications or open up altogether new areas of application, among them cross-phase industrial transfer learning. In the context of machine learning, transfer learning represents a set of approaches that enhance learning new tasks based upon previously acquired knowledge. Here, knowledge is transferred from one lifecycle phase to another in order to reduce the amount of data or time needed to train a machine learning algorithm. Looking at common challenges in developing and deploying industrial machinery with deep learning functionalities, embracing this concept would offer several advantages: Using an intelligent Digital Twin, learning algorithms can be designed, configured and tested in the design phase before the physical system exists and real data can be collected. Once real data becomes available, the algorithms must merely be fine-tuned, significantly speeding up commissioning and reducing the probability of costly modifications. Furthermore, using the Digital Twin's simulation capabilities virtually injecting rare faults in order to train an algorithm's response or using reinforcement learning, e.g. to teach a robot, become practically feasible. This article presents several cross-phase industrial transfer learning use cases utilizing intelligent Digital Twins. A real cyber physical production system consisting of an automated welding machine and an automated guided vehicle equipped with a robot arm is used to illustrate the respective benefits.
description: 6 pages, 7 figures, submitted to the CIRP Design Conference 2021
Large-N Solution of the Heterotic N=(0,2) Two-Dimensional CP(N-1) Model
Creators: name: Shifman, M.
name: Yung, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We continue explorations of non-Abelian strings, focusing on the solution of a heterotic deformation of the CP(N-1) model with an extra right-handed fermion field and N=(0,2) supersymmetry. This model emerges as a low-energy theory on the worldsheet of the BPS-saturated flux tubes (strings) in N=2 supersymmetric QCD deformed by a superpotential of a special type breaking N=2 supersymmetry down to N=1. Using large-N expansion we solve this model to the leading order in 1/N. Our solution exhibits spontaneous supersymmetry breaking for all values of the deformation parameter. We identify the Goldstino field. The discrete Z_{2N} symmetry is shown to be spontaneously broken down to Z_2; therefore, the worldsheet model has N strictly degenerate vacua (with nonvanishing vacuum energy). Thus, the heterotic CP(N-1) model is in the deconfinement phase. We can compare this dynamical pattern, on the one hand, with the N=(2,2) CP(N-1) model which has N degenerate vacua with unbroken supersymmetry, and, on the other hand, with nonsupersymmetric CP(N-1) model with split quasivacua and the Coulomb/confining phase. We determine the mass spectrum of the heterotic CP(N-1) model in the large-N limit.
description: 23 pages, 6 figures/v.2: 2 expressions corrected, minor textual changes, 1 reference added
Additional file 1 of CIDER: an interpretable meta-clustering framework for single-cell RNA-seq data integration and evaluation
Creators: name: Hu, Zhiyuan
name: Ahmed, Ahmed A.
name: Yau, Christopher
Publisher: name: figshare
Year: 2021
Subjects: subject: Space Science
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer

description: Additional file 1: Fig. S1-S7 and Table S1.
Lagrangian dynamics and statistical geometric structure of turbulence
Creators: name: Chevillard, L.
name: Meneveau, C.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The local statistical and geometric structure of three-dimensional turbulent flow can be described by properties of the velocity gradient tensor. A stochastic model is developed for the Lagrangian time evolution of this tensor, in which the exact nonlinear self-stretching term accounts for the development of well-known non-Gaussian statistics and geometric alignment trends. The non-local pressure and viscous effects are accounted for by a closure that models the material deformation history of fluid elements. The resulting stochastic system reproduces many statistical and geometric trends observed in numerical and experimental 3D turbulent flows, including anomalous relative scaling.
description: 5 pages, 5 figures, final version, published
Time-Machines Construct in $f(\mathcal{R},\mathcal{A},A^{μν}\,A_{μν})$ and $f(\mathcal{R})$ Modified Gravity Theories
Creators: name: Ahmed, F.
name: de Souza, J. C. R.
name: Santos, A. F.
Publisher: name: arXiv
Year: 2024
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper, our objective is to explore a time-machine space-time formulated in general relativity, as introduced by Li (Phys. Rev. D {\bf 59}, 084016 (1999)), within the context of modified gravity theories. We consider Ricci-inverse gravity of all Classes of models, {\it i.e.}, (i) Class-{\bf I}: $f(\mathcal{R}, \mathcal{A})=(\mathcal{R}+{κ\,\mathcal{R}^2}+β\,\mathcal{A})$, (ii) Class-{\bf II}: $f(\mathcal{R}, A^{μν}\,A_{μν})=(\mathcal{R}+{κ\,\mathcal{R}^2}+γ\,A^{μν}\,A_{μν})$ model, and (iii) Class-{\bf III}: $f(\mathcal{R}, \mathcal{A}, A^{μν}\,A_{μν})=(\mathcal{R}{κ\,\mathcal{R}^2}+β\,\mathcal{A}+δ\,\mathcal{A}^2+γ\,A^{μν}\,A_{μν})$ model, where $A^{μν}$ is the anti-curvature tensor, the reciprocal of the Ricci tensor, $R_{μν}$, $\mathcal{A}=g_{μν}\,A^{μν}$ is its scalar, and $β, κ, γ, δ$ are the coupling constants. Moreover, we consider $f(\mathcal{R})$ modified gravity theory and investigate the same time-machine space-time. In fact, we show that Li time-machine space-time serve as valid solutions both in Ricci-inverse and $f(\mathcal{R})$ modified gravity theories. Thus, both theory allows the formation of closed time-like curves analogue to general relativity, thereby representing a possible time-machine model in these gravity theories theoretically.
description: 23 pages, 4 figures
New Measurements of the EMC Effect in Few-Body Nuclei
Creators: name: Arrington, J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Measurements of the EMC effect show that the quark distributions in nuclei are not simply the sum of the quark distributions of the constituent nucleons. However, interpretation of the EMC effect is limited by the lack of a reliable baseline calculation of the effects of Fermi motion and nucleon binding. We present preliminary results from JLab experiment E03-103, a precise measurement of the EMC effect in few-body and heavy nuclei. These data emphasize the large-x region, where binding and Fermi motion effects dominate, and thus will provide much better constraints on the effects of binding. These data will also allow for comparisons to calculations for few-body nuclei, where the uncertainty in the nuclear structure is minimized.
description: Proceedings from talk at the Topical Group on Hadron Physics meeting, Nashville Tennessee, October 22-24, 2006. 9 pages, 6 figures
Density Profiles of Collisionless Equilibria. II. Anisotropic Spherical Systems
Creators: name: Barnes, Eric I.
name: Williams, Liliya L. R.
name: Babul, Arif
name: Dalcanton, Julianne J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: It has long been realized that dark matter halos formed in cosmological N-body simulations are characterized by density profiles rho(r) that, when suitably scaled, have similar shapes. Additionally, combining the density and velocity dispersion profiles sigma(r), each of which have decidedly nonpower-law shapes, leads to quantity rho/(sigma^3) that is a power-law in radius over 3 orders of magnitude in radius. Halos' velocity anisotropy profiles beta(r) vary from isotropic near the centers of halos to quite radially anisotropic near the virial radius. Finally, there appears to be a nearly linear correlation between beta and the logarithmic density slope gamma for a wide variety of halos. This work is part of a continuing investigation of the above interrelationships and their origins using analytical and semi-analytical techniques. Our finding suggest that the nearly linear beta--gamma relationship is not just another expression of scale-free rho/(sigma^3) behavior. We also note that simultaneously reproducing density and anisotropy profiles like those found in simulations requires beta(r) and gamma(r) to have similar shapes, leading to nearly linear beta--gamma correlations. This work suggests that the beta--gamma and power-law rho/(sigma^3) relations have distinct physical origins.
description: accepted for publication in ApJ; version with color figures available at http://uwlax.edu/faculty/barnes/research/rho2.pdf
Role of wave-particle resonance in turbulent transport in toroidal plasmas
Creators: name: Dong, Ge
name: Lin, Zhihong
Publisher: name: arXiv
Year: 2021
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Wave-particle interaction in toroidal plasmas is an essential transport mechanism in drift wave instability-driven microturbulence. In tokamkas, different wave-particle resonance conditions have been found important for the energy and particle transport of multiple species in various drift wave turbulences. To confirm the transport mechanism for electrons and ions in tokamak drift-wave instabilities, the effect of wave-particle resonance on turbulent transport is studied using global gyrokinetic particle simulations of the plasma core ion temperature gradient (ITG) and collisionless trapped electron mode (CTEM) turbulence. Simulation results show that in CTEM and ITG turbulence, electron transport is primarily regulated by wave-particle linear resonance, and the ion transport is regulated by nonlinear wave-particle decorrelation.
Dependence of Heliospheric Lyman-alpha Absorption on the Interstellar Magnetic Field
Creators: name: Wood, Brian E.
name: Izmodenov, Vladislav V.
name: Linsky, Jeffrey L.
name: Alexashov, Dmitry
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We use newly developed 3D kinetic MHD models of the heliosphere to predict heliospheric H I Lyman-alpha absorption for various lines of sight. These predictions are compared with actual Lyman-alpha spectra from the Hubble Space Telescope, many of which have yielded previous detections of heliospheric absorption. We find that the absorption predicted by the models is weakly affected by both the magnitude and orientation of the assumed ISM magnetic field. Models with B=1.25-2.5 micro-Gauss and an angle of alpha=15-45 deg with respect to the upwind direction of the ISM flow generally provide the best fits to the data, but the sensitivity of the Lyman-alpha absorption to many model input parameters makes it difficult to fully characterize the region of parameter space allowed by the data. We also use the models to assess the degree to which heliospheric asymmetries induced by the ISM field should be apparent in Lyman-alpha absorption. An ISM field that is skewed with respect to the ISM flow vector results in substantial azimuthal asymmetries in both the hydrogen wall and heliosheath, but only the heliosheath asymmetries yield potentially detectable asymmetries in Lyman-alpha absorption; and then only in downwind directions, where comparison with the data is complicated by few actual absorption detections and an insufficient model grid extent.
description: 23 pages, 6 figures, AASTEX v5.0, accepted by ApJ
Additional file 2 of CIDER: an interpretable meta-clustering framework for single-cell RNA-seq data integration and evaluation
Creators: name: Hu, Zhiyuan
name: Ahmed, Ahmed A.
name: Yau, Christopher
Publisher: name: figshare
Year: 2021
Subjects: subject: Space Science
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer

description: Additional file 2. Review history.
Actors in VR storytelling
Creators: name: Rizvic, Selma
name: Boskovic, Dusanka
name: Bruno, Fabio
name: Petriaggi, Barbara Davidde
name: Sljivo, Sanda
name: Cozza, Marco
Publisher: name: arXiv
Year: 2020
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Graphics (cs.GR)
subject: Multimedia (cs.MM)
subject: FOS: Computer and information sciences

description: Virtual Reality (VR) storytelling enhances the immersion of users into virtual environments (VE). Its use in virtual cultural heritage presentations helps the revival of the genius loci (the spirit of the place) of cultural monuments. This paper aims to show that the use of actors in VR storytelling adds to the quality of user experience and improves the edutainment value of virtual cultural heritage applications. We will describe the Baiae dry visit application which takes us to a time travel in the city considered by the Roman elite as "Little Rome (Pusilla Roma)" and presently is only partially preserved under the sea.
description: Pre-print version
Local resolution-limit-free Potts model for community detection
Creators: name: Ronhovde, Peter
name: Nussinov, Zohar
Publisher: name: arXiv
Year: 2008
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We report on an exceptionally accurate spin-glass-type Potts model for community detection. With a simple algorithm, we find that our approach is at least as accurate as the best currently available algorithms and robust to the effects of noise. It is also competitive with the best currently available algorithms in terms of speed and size of solvable systems. We find that the computational demand often exhibits superlinear scaling L^1.3 where L is the number of edges in the system, and we have applied the algorithm to synthetic systems as large as 40x10^6 nodes and over 1x10^9 edges. A previous stumbling block encountered by popular community detection methods is the so-called "resolution limit." Being a "local" measure of community structure, our Potts model is free from this resolution-limit effect, and it further remains a local measure on weighted and directed graphs. We also address the mitigation of resolution-limit effects for two other popular Potts models.
description: 16 pages, 12 figures; title change for Physical Review E, minor editing, updated references
Additional file 1 of Observational study on fluid therapy management in surgical adult patients
Creators: name: Colomina, Maria J.
name: Ripollés-Melchor, Javier
name: Guilabert, Patricia
name: Jover, José Luis
name: Basora, Misericordia
name: Cassinello, Concha
name: Ferrandis, Raquel
name: Llau, Juan V.
name: Peñafiel, Judith
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 60506 Virology

description: Additional file 1.
Macroscopic superpositions of superfluid flows
Creators: name: Hallwood, David W.
name: Dunningham, Jacob
name: Burnett, Keith
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a scheme for creating macroscopic superpositions of the direction of superfluid flow around a loop. Using the Bose-Hubbard model we study an array of Bose-Einstein condensates trapped in optical potentials and coupled to one another to form a ring. By rotating the ring so that each particle acquires on average half a quantum of superfluid flow, it is possible to create a multiparticle superposition of all the particles rotating and all the particles stationary. Under certain conditions it is possible to scale up the number of particles to form a macroscopic superposition. The simplicity of the model has allowed us to study macroscopic superpositions at an atomic level for different variables. Here we concentrate on the tunnelling strength between the potentials. Further investigation remains important, because it could lead us to making an ultra-precise quantum-limited gyroscope.
description: 5 pages, 4 figures
Gaia Early Data Release 3: Photometric content and validation
Creators: name: Riello, M.
name: De Angeli, F.
name: Evans, D. W.
name: Montegriffo, P.
name: Carrasco, J. M.
name: Busso, G.
name: Palaversa, L.
name: Burgess, P. W.
name: Diener, C.
name: Davidson, M.
name: Rowell, N.
name: Fabricius, C.
name: Jordi, C.
name: Bellazzini, M.
name: Pancino, E.
name: Harrison, D. L.
name: Cacciari, C.
name: van Leeuwen, F.
name: Hambly, N. C.
name: Hodgkin, S. T.
name: Osborne, P. J.
name: Altavilla, G.
name: Barstow, M. A.
name: Brown, A. G. A.
name: Castellani, M.
name: Cowell, S.
name: De Luise, F.
name: Gilmore, G.
name: Giuffrida, G.
name: Hidalgo, S.
name: Holland, G.
name: Marinoni, S.
name: Pagani, C.
name: Piersimoni, A. M.
name: Pulone, L.
name: Ragaini, S.
name: Rainer, M.
name: Richards, P. J.
name: Sanna, N.
name: Walton, N. A.
name: Weiler, M.
name: Yoldas, A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Gaia Early Data Release 3 contains astrometry and photometry results for about 1.8 billion sources based on observations collected by the ESA Gaia satellite during the first 34 months of operations. This paper focuses on the photometric content, describing the input data, the algorithms, the processing, and the validation of the results. Particular attention is given to the quality of the data and to a number of features that users may need to take into account to make the best use of the EDR3 catalogue. The treatment of the BP and RP background has been updated to include a better estimation of the local background, and the detection of crowding effects has been used to exclude affected data from the calibrations. The photometric calibration models have also been updated to account for flux loss over the whole magnitude range. Significant improvements in the modelling and calibration of the point and line spread functions have also helped to reduce a number of instrumental effects that were still present in DR2. EDR3 contains 1.806 billion sources with G-band photometry and 1.540 billion sources with BP and RP photometry. The median uncertainty in the G-band photometry, as measured from the standard deviation of the internally calibrated mean photometry for a given source, is 0.2 mmag at magnitude G=10 to 14, 0.8 mmag at G=17, and 2.6 mmag at G=19. The significant magnitude term found in the Gaia DR2 photometry is no longer visible, and overall there are no trends larger than 1 mmag/mag. Using one passband over the whole colour and magnitude range leaves no systematics above the 1% level in magnitude in any of the bands, and a larger systematic is present for a very small sample of bright and blue sources. A detailed description of the residual systematic effects is provided. Overall the quality of the calibrated mean photometry in EDR3 is superior with respect to DR2 for all bands.
Solar Wind Forecasting with Coronal Holes
Creators: name: Robbins, S.
name: Henney, C. J.
name: Harvey, J. W.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: An empirical model for forecasting solar wind speed related geomagnetic events is presented here. The model is based on the estimated location and size of solar coronal holes. This method differs from models that are based on photospheric magnetograms (e.g., Wang-Sheeley model) to estimate the open field line configuration. Rather than requiring the use of a full magnetic synoptic map, the method presented here can be used to forecast solar wind velocities and magnetic polarity from a single coronal hole image, along with a single magnetic full-disk image. The coronal hole parameters used in this study are estimated with Kitt Peak Vacuum Telescope He I 1083 nm spectrograms and photospheric magnetograms. Solar wind and coronal hole data for the period between May 1992 and September 2003 are investigated. The new model is found to be accurate to within 10% of observed solar wind measurements for its best one-month periods, and it has a linear correlation coefficient of ~0.38 for the full 11 years studied. Using a single estimated coronal hole map, the model can forecast the Earth directed solar wind velocity up to 8.5 days in advance. In addition, this method can be used with any source of coronal hole area and location data.
description: 13 pages, 5 figures
The childbearing experience for women with stomas : A multiple-case study
Creators: name: Hawkins, Margery Edith
Publisher: name: University of British Columbia
Year: 2009

description: Although much research has been done on the daily challenges facing individuals with stomas, the experience of childbearing for women with stomas has not been addressed in the nursing literature. The research question put forth therefore was: how does a stoma affect the childbearing experience? Case study methodology was used to answer this question. This design allowed the researcher to use a variety of evidence to explore in depth a subject about which little is known. Six cases were selected for the study and data collection and analysis procedures were replicated for each case. An informal interview guide consisting of open and closed-ended questions was used to solicit information from six women with stomas who had experienced childbirth in the past eighteen months, their respective partners, and the physicians who provided their obstetrical care. Data were analyzed according to the major concepts of Snyder's (1979) holistic model of the childbearing experience and findings were presented in six individual case reports. Common issues were identified, expanded, and compared in a cross-case report. In each case, the stoma affected the woman's physiological, self, family, social, and cultural systems and these interacted to create six unique childbearing experiences. Although all the women delivered healthy babies, two serious physiological implications of having a stoma during pregnancy were noted. These included 2 cases of stomal prolapse and 3 cases of partial or complete bowel obstruction. Both complications necessitated hospitalization and caused anxiety and inconvenience for the woman and her family. However, the findings revealed that many of the technical, psychosocial, and cultural challenges faced by women with stomas during pregnancy are similar to those experienced on a daily basis by any individual with a stoma. It was concluded that women with stomas need pre-natal counselling to learn what to anticipate with pregnancy, labour and delivery, and postpartum and they need to participate in formulating a management plan for their pregnancy and hospitalization. Finally, basic and continuing nursing education programs need to address the affective, cognitive, and psychomotor skills necessary to care for these individuals during their childbearing experiences.
Generalized Albanese and its dual
Creators: name: Russell, Henrik
Publisher: name: arXiv
Year: 2006
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14L10; 14C15

description: We consider categories of rational maps to algebraic groups and study existence and construction of universal objects for such categories, using the duality theory of Laumon 1-motives. In particular, we obtain functorial descriptions of the Albanese of a singular projective variety X over an algebraically closed field of characteristic zero, which is the universal regular quotient of a relative Chow group of points on X, and of its dual.
description: updated and shortened version
การพัฒนารูปแบบการสอนโดยใช้แหล่งเรียนรู้ในชุมชนเพื่อส่งเสริมความสามารถในการคิดวิเคราะห์สำหรับนักเรียนชั้นมัธยมศึกษาปีที่ 3
Creators: name: ฉัตรธิภรณ์ ศิริวัฒน์
Publisher: name: หจก.เลิศศิลป์ สาส์ณ โฮลดิ้ง
Year: 2562
Subjects: การพัฒนารูปแบบการสอน, แหล่งเรียนรู้ในชุมชน, ความสามารถในการคิดวิเคราะห์ (The development of teaching model, Community learning resources, Analytical thinking ability)

description: วารสารชุมชนวิจัย มหาวิทยาลัยราชภัฏนครราชสีมา, 13, 2, 67-80
m_b and f_Bs from a combination of HQET and QCD
Creators: name: Guazzini, Damiano
name: Sommer, Rainer
name: Tantalo, Nazario
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We compute the mass of the b-quark and the B_s meson decay constant in quenched lattice QCD using a combination of HQET and the standard relativistic QCD Lagrangian. We start from a small volume, where one can directly deal with the b-quark, and compute the evolution to a big volume, where the finite size effects are negligible through step scaling functions which give the change of the observables when L is changed to 2L. In all steps we extrapolate to the continuum limit, separately in HQET and in QCD for masses below m_b. The point m_b is then reached by an interpolation of the continuum results. With r_0=0.5 fm and the experimental B_s and K masses we find f_Bs=191(6) MeV and the renormalization group invariant mass M_b=6.89(11) GeV, translating into m_b(m_b)=4.42(7) GeV in the MS-bar scheme.
description: Talk at Lattice 2006; to be published in Proceedings of Science as POS(LAT2006)084
Linear Optical Approach to Supersymmetric Dynamics
Creators: name: Zhan, Yong-Tao
name: Xu, Xiao-Ye
name: Wang, Qin-Qin
name: Pan, Wei-Wei
name: Jan, Munsif
name: Chang, Fu-Ming
name: Sun, Kai
name: Xu, Jin-Shi
name: Han, Yong-Jian
name: Li, Chuan-Feng
name: Guo, Guang-Can
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The concept of supersymmetry developed in particle physics has been applied to various fields of modern physics. In quantum mechanics, the supersymmetric systems refer to the systems involving two supersymmetric partner Hamiltonians, whose energy levels are degeneracy except one of the systems has an extra ground state possibly, and the eigenstates of the partner systems can be mapped onto each other. Recently, an interferometric scheme has been proposed to show this relationship in ultracold atoms [Phys. Rev.A 96, 043624 (2017)]. Here this approach is generalized to linear optics for observing the supersymmetric dynamics with photons. The time evolution operator is simulated approximately via Suzuki-Trotter expansion with considering the realization of the kinetic and potential terms separately. The former is realized through the diffraction nature of light and the later is implemented using phase plate. Additionally, we propose an interferometric approach which can be implemented perfectly using amplitude alternator to realize the non-unitary operator. The numerical results show that our scheme is universal and can be realized with current technologies.
description: 7 pages