cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
HPX -- An open source C++ Standard Library for Parallelism and Concurrency
Creators: name: Heller, Thomas
name: Diehl, Patrick
name: Byerly, Zachary
name: Biddiscombe, John
name: Kaiser, Hartmut
Publisher: name: arXiv
Year: 2024
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: To achieve scalability with today's heterogeneous HPC resources, we need a dramatic shift in our thinking; MPI+X is not enough. Asynchronous Many Task (AMT) runtime systems break down the global barriers imposed by the Bulk Synchronous Programming model. HPX is an open-source, C++ Standards compliant AMT runtime system that is developed by a diverse international community of collaborators called The Ste||ar Group. HPX provides features which allow application developers to naturally use key design patterns, such as overlapping communication and computation, decentralizing of control flow, oversubscribing execution resources and sending work to data instead of data to work. The Ste||ar Group comprises physicists, engineers, and computer scientists; men and women from many different institutions and affiliations, and over a dozen different countries. We are committed to advancing the development of scalable parallel applications by providing a platform for collaborating and exchanging ideas. In this paper, we give a detailed description of the features HPX provides and how they help achieve scalability and programmability, a list of applications of HPX including two large NSF funded collaborations (STORM, for storm surge forecasting; and STAR (OctoTiger) an astro-physics project which runs at 96.8% parallel efficiency on 643,280 cores), and we end with a description of how HPX and the Ste||ar Group fit into the open source community.
The GALAH survey: tracing the Galactic disk with Open Clusters
Creators: name: Spina, Lorenzo
name: Ting, Yuan-Sen
name: De Silva, Gayandhi M.
name: Frankel, Neige
name: Sharma, Sanjib
name: Cantat-Gaudin, Tristan
name: Joyce, Meridith
name: Stello, Dennis
name: Karakas, Amanda I.
name: Asplund, Martin B.
name: Nordlander, Thomas
name: Casagrande, Luca
name: D'Orazi, Valentina
name: Casey, Andrew R.
name: Cottrell, Peter
name: Tepper-García, Thor
name: Baratella, Martina
name: Kos, Janez
name: Čotar, Klemen
name: Bland-Hawthorn, Joss
name: Buder, Sven
name: Freeman, Ken C.
name: Hayden, Michael R.
name: Lewis, Geraint F.
name: Lin, Jane
name: Lind, Karin
name: Martell, Sarah L.
name: Schlesinger, Katharine J.
name: Simpson, Jeffrey D.
name: Zucker, Daniel B.
name: Zwitter, Tomaž
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences
subject: 85-02

description: Open clusters are unique tracers of the history of our own Galaxy's disk. According to our membership analysis based on \textit{Gaia} astrometry, out of the 226 potential clusters falling in the footprint of GALAH or APOGEE, we find that 205 have secure members that were observed by at least one of the survey. Furthermore, members of 134 clusters have high-quality spectroscopic data that we use to determine their chemical composition. We leverage this information to study the chemical distribution throughout the Galactic disk of 21 elements, from C to Eu. The radial metallicity gradient obtained from our analysis is $-$0.076$\pm$0.009 dex kpc$^{-1}$, which is in agreement with previous works based on smaller samples. Furthermore, the gradient in the [Fe/H] - guiding radius (r$_{\rm guid}$) plane is $-$0.073$\pm$0.008 dex kpc$^{-1}$. We show consistently that open clusters trace the distribution of chemical elements throughout the Galactic disk differently than field stars. In particular, at given radius, open clusters show an age-metallicity relation that has less scatter than field stars. As such scatter is often interpreted as an effect of radial migration, we suggest that these differences are due to the physical selection effect imposed by our Galaxy: clusters that would have migrated significantly also had higher chances to get destroyed. Finally, our results reveal trends in the [X/Fe]$-$r$_{\rm guid}$$-$age space, which are important to understand production rates of different elements as a function of space and time.
description: 18 pages, 10 figures, accepted for publication MNRAS
Renormalization group improved pressure for hot and dense quark matter
Creators: name: Kneur, Jean-Loïc
name: Pinto, Marcus Benghi
name: Restrepo, Tulio E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We apply the renormalization group optimized perturbation theory (RGOPT) to evaluate the quark contribution to the QCD pressure at finite temperatures and baryonic densities, at next-to-leading order (NLO). Our results are compared to NLO and state-of-the-art higher orders of standard perturbative QCD (pQCD) and hard thermal loop perturbation theory (HTLpt). The RGOPT resummation provides a nonperturbative approximation, exhibiting a drastically better remnant renormalization scale dependence than pQCD, thanks to built-in renormalization group invariance consistency. At NLO, upon simply adding to the RGOPT-resummed quark contributions the purely perturbative NLO glue contribution, our results show a remarkable agreement with ab initio lattice simulation data for temperatures $0.25 \lesssim T \lesssim 1 \, {\rm GeV}$, with a remnant scale dependence drastically reduced as compared to HTLpt.
description: 24 pages, 17 figures. v2: some clarifications + 2 figures + references added. To appear in Phys. Rev. D
Anomalous quantum chaotic behavior in nanoelectromechanical structures
Creators: name: Rego, Luis G. C.
name: Gusso, A.
name: da Luz, M. G. E.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: It is predicted that for sufficiently strong electron-phonon coupling an anomalous quantum chaotic behavior develops in certain types of suspended electro-mechanical nanostructures, here comprised by a thin cylindrical quantum dot (billiard) on a suspended rectangular dielectric plate. The deformation potential and piezoelectric interactions are considered. As a result of the electron-phonon coupling between the two systems the spectral statistics of the electro-mechanic eigenenergies exhibit an anomalous behavior. If the center of the quantum dot is located at one of the symmetry axes of the rectangular plate, the energy level distributions correspond to the Gaussian Orthogonal Ensemble (GOE), otherwise they belong to the Gaussian Unitary Ensemble (GUE), even though the system is time-reversal invariant.
description: 4 pages, pdf format
25 Jahre theologische Gespräche zwischen Evangelischer Kirche in Deutschland und Moskauer Patriarchat
Creators: name: Slenczka, Reinhard
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 34 Nr. 4 (1985): Ökumenische Rundschau, Band 34, Heft 4
Fermions in odd space-time dimensions: back to basics
Creators: name: Bashir, A.
name: Galicia, Ma. de Jesus Anguiano
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: It is a well known feature of odd space-time dimensions $d$ that there exist two inequivalent fundamental representations $A$ and $B$ of the Dirac gamma matrices. Moreover, the parity transformation swaps the fermion fields living in $A$ and $B$. As a consequence, a parity invariant Lagrangian can only be constructed by incorporating both the representations. Based upon these ideas and contrary to long held belief, we show that in addition to a discrete exchange symmetry for the massless case, we can also define chiral symmetry provided the Lagrangian contains fields corresponding to both the inequivalent representations. We also study the transformation properties of the corresponding chiral currents under parity and charge conjugation operations. We work explicitly in 2+1 dimensions and later show how some of these ideas generalize to an arbitrary number of odd dimensions.
description: 8 pages, no figures
Amplification of brightness variability by active-region nesting in solar-like stars
Creators: name: Işık, Emre
name: Shapiro, Alexander I.
name: Solanki, Sami K.
name: Krivova, Natalie A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Kepler observations revealed that hundreds of stars with near-solar fundamental parameters and rotation periods have much stronger and more regular brightness variations than the Sun. Here we identify one possible reason for the peculiar behaviour of these stars. Inspired by solar nests of activity, we assume that the degree of inhomogeneity of active-region (AR) emergence on such stars is higher than on the Sun. To test our hypothesis, we model stellar light curves by injecting ARs consisting of spots and faculae on stellar surfaces at various rates and nesting patterns, using solar AR properties and differential rotation. We show that a moderate increase of the emergence frequency from the solar value combined with the increase of the degree of nesting can explain the full range of observed amplitudes of variability of Sun-like stars with nearly the solar rotation period. Furthermore, nesting in the form of active longitudes, in which ARs tend to emerge in the vicinity of two longitudes separated by $180^\circ$, leads to highly regular, almost sine-like variability patterns, rather similar to those observed in a number of solar-like stars.
description: Typo in Equation 1 corrected in this version. Erratum accepted by ApJL
Modelling dose distributions in cell nuclei after irradiation with ultrasoft X-rays
Creators: name: Buch, T.
name: Scifoni, E.
name: Durante, M.
name: Scholz, M.
name: Friedrich, T.
Publisher: name: GSI Helmholtzzentrum fuer Schwerionenforschung, Darmstadt
Year: 2015
Subjects: Physics

description: GSI Scientific Report 2014 - GSI Report 2015-1
Periodic cohomology
Creators: name: Mannan, Wajid
Publisher: name: arXiv
Year: 2024
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 16E05

description: We offer a direct proof of an elementary result concerning cohomological periods. As a corollary we show that given a finitely generated stably free resolution of Z over a finite group, two of its modules are free.
description: Paper published in peer reviewed journal in 2008
Species exclusion and coexistence in a noisy voter model with a competition-colonization tradeoff
Creators: name: Martinez-Garcia, Ricardo
name: López, Cristóbal
name: Vazquez, Federico
Publisher: name: arXiv
Year: 2020
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: We introduce an asymmetric noisy voter model to study the joint effect of immigration and a competition-dispersal tradeoff in the dynamics of two species competing for space in regular lattices. Individuals of one species can invade a nearest-neighbor site in the lattice, while individuals of the other species are able to invade sites at any distance but are less competitive locally, i.e., they establish with a probability $g \le 1$. The model also accounts for immigration, modeled as an external noise that may spontaneously replace an individual at a lattice site by another individual of the other species. This combination of mechanisms gives rise to a rich variety of outcomes for species competition, including exclusion of either species, mono-stable coexistence of both species at different population proportions, and bi-stable coexistence with proportions of populations that depend on the initial condition. Remarkably, in the bi-stable phase, the system undergoes a discontinuous transition as the intensity of immigration overcomes a threshold, leading to a half loop dynamics associated to a cusp catastrophe, which causes the irreversible loss of the species with the shortest dispersal range.
description: 13 pages, 9 figures, 3 appendices
In-Database Data Imputation
Creators: name: Perini, Massimo
name: Nikolic, Milos
Publisher: name: arXiv
Year: 2024
Subjects: subject: Databases (cs.DB)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Missing data is a widespread problem in many domains, creating challenges in data analysis and decision making. Traditional techniques for dealing with missing data, such as excluding incomplete records or imputing simple estimates (e.g., mean), are computationally efficient but may introduce bias and disrupt variable relationships, leading to inaccurate analyses. Model-based imputation techniques offer a more robust solution that preserves the variability and relationships in the data, but they demand significantly more computation time, limiting their applicability to small datasets.
 This work enables efficient, high-quality, and scalable data imputation within a database system using the widely used MICE method. We adapt this method to exploit computation sharing and a ring abstraction for faster model training. To impute both continuous and categorical values, we develop techniques for in-database learning of stochastic linear regression and Gaussian discriminant analysis models. Our MICE implementations in PostgreSQL and DuckDB outperform alternative MICE implementations and model-based imputation techniques by up to two orders of magnitude in terms of computation time, while maintaining high imputation quality.
description: Published at SIGMOD 2024 (26 pages)
Detection of chromatin decondensation induced by charged particle irradiation using Fluorescence Lifetime Imaging Microscopy
Creators: name: Abdollahi Mirzanagh, E.
name: Özgün Korkusuz, N.
name: Durante, M.
name: Taucher-Scholz, G.
name: Jakob, B.
Publisher: name: GSI Helmholtzzentrum fuer Schwerionenforschung, Darmstadt
Year: 2015
Subjects: Physics

description: GSI Scientific Report 2014 - GSI Report 2015-1
Generating potentials via difference equations
Creators: name: Maharaj, S. D.
name: Thirukkanesh, S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The condition for pressure isotropy, for spherically symmetric gravitational fields with charged and uncharged matter, is reduced to a recurrence equation with variable, rational coefficients. This difference equation is solved in general using mathematical induction leading to an exact solution to the Einstein field equations which extends the isotropic model of John and Maharaj. The metric functions, energy density and pressure are well behaved which suggests that this model could be used to describe a relativistic sphere. The model admits a barotropic equation of state which approximates a polytrope close to the stellar centre.
description: 11 pages, To appear in Math. Meth. Appl. Sci
Detection of radiation induced DNA damage using quantum dot coupled antibodies
Creators: name: Tonnemacher, S.
name: Becker, G.
name: Durante, M.
name: Taucher-Scholz, G.
name: Jakob, B.
Publisher: name: GSI Helmholtzzentrum fuer Schwerionenforschung, Darmstadt
Year: 2015
Subjects: Physics

description: GSI Scientific Report 2014 - GSI Report 2015-1
Die Konvergenzerklärungen über Taufe, Eucharistie und Amt der Kommission für Glauben und Kirchenverfassung als Ansporn zur intensiveren ökumenischen Arbeit der Kirchen
Creators: name: Larentzakēs, Grēgorios
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 34 Nr. 4 (1985): Ökumenische Rundschau, Band 34, Heft 4
Prediction of asynchronous cell survival with the cell cycle extended GLOBLE model
Creators: name: Guenther, P.
name: Hufnagl, A.
name: Friedrich, T.
name: Herr, L. A.
name: Durante, M.
name: Scholz, M.
Publisher: name: GSI Helmholtzzentrum fuer Schwerionenforschung, Darmstadt
Year: 2015
Subjects: Physics

description: GSI Scientific Report 2014 - GSI Report 2015-1
Optimization of the chromatid paint FISH assay for the detection of inversions after ionizing radiation
Creators: name: Paz Gandiaga, N.
name: Nasonova, E.
name: Durante, M.
name: Ritter, S.
Publisher: name: GSI Helmholtzzentrum fuer Schwerionenforschung, Darmstadt
Year: 2015
Subjects: Physics

description: GSI Scientific Report 2014 - GSI Report 2015-1
Additional file 1 of PI3Kδ inhibition prevents IL33, ILC2s and inflammatory eosinophils in persistent airway inflammation
Creators: name: Uddin, Sorif
name: Amour, Augustin
name: Lewis, David J.
name: Edwards, Chris D.
name: Williamson, Matthew G.
name: Hall, Simon
name: Lione, Lisa A.
name: Hessel, Edith M.
Publisher: name: figshare
Year: 2021
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 1. Online methods supplement.
Unified Learning Approach for Egocentric Hand Gesture Recognition and Fingertip Detection
Creators: name: Alam, Mohammad Mahmudul
name: Islam, Mohammad Tariqul
name: Rahman, S. M. Mahbubur
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Head-mounted device-based human-computer interaction often requires egocentric recognition of hand gestures and fingertips detection. In this paper, a unified approach of egocentric hand gesture recognition and fingertip detection is introduced. The proposed algorithm uses a single convolutional neural network to predict the probabilities of finger class and positions of fingertips in one forward propagation. Instead of directly regressing the positions of fingertips from the fully connected layer, the ensemble of the position of fingertips is regressed from the fully convolutional network. Subsequently, the ensemble average is taken to regress the final position of fingertips. Since the whole pipeline uses a single network, it is significantly fast in computation. Experimental results show that the proposed method outperforms the existing fingertip detection approaches including the Direct Regression and the Heatmap-based framework. The effectiveness of the proposed method is also shown in-the-wild scenario as well as in a use-case of virtual reality.
description: 30 pages, 8 figures, Manuscript Accepted to the Pattern Recognition, Elsevier Science Publishers, 2021
Reply to Comment on "Covariant formulation of electrodynamics in isotropic media''
Creators: name: Pal, Palash B.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: This note contains my response to the comment written by J. Franklin on my paper ``Covariant formulation of electrodynamics in isotropic media''.
description: 3 pages, LateX, no figure
Real map germs and higher open books
Creators: name: Santos, Raimundo Araújo dos
name: Tibăr, Mihai
Publisher: name: arXiv
Year: 2008
Subjects: subject: Algebraic Geometry (math.AG)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 32S55, 57Q45, 32C40, 32S60

description: We present a general criterion for the existence of open book structures defined by real map germs $(\bR^m, 0) \to (\bR^p, 0)$, where $m> p \ge 2$, with isolated critical point. We show that this is satisfied by weighted-homogeneous maps. We also derive sufficient conditions in case of map germs with isolated critical value.
description: 12 pages
Insights in the molecular basis of a reduced lymphocyte adhesion to irradiated and stimulated primary endothelial cells
Creators: name: Erbeldinger, N.
name: Meyer, S.
name: Zimmermann, J.
name: Dettmering, T.
name: Bertulat, B.
name: Durante, M.
name: Rödel, F.
name: Cardoso, M. C.
name: Fournier, C.
Publisher: name: GSI Helmholtzzentrum fuer Schwerionenforschung, Darmstadt
Year: 2015
Subjects: Physics

description: GSI Scientific Report 2014 - GSI Report 2015-1
Generalized Teleportation Protocol
Creators: name: Gordon, Goren
name: Rigolin, Gustavo
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A generalized teleportation protocol (GTP) for N qubits is presented, where the teleportation channels are non-maximally entangled and all the free parameters of the protocol are considered: Alice's measurement basis, her sets of acceptable results, and Bob's unitary operations. The full range of Fidelity (F) of the teleported state and the Probability of Success (P_{suc}) to obtain a given fidelity are achieved by changing these free parameters. A channel efficiency bound is found, where one can determine how to divide it between F and P_{suc}. A one qubit formulation is presented and then expanded to N qubits. A proposed experimental setup that implements the GTP is given using linear optics.
description: 4 pages, 2 figures, RevTex4, published version
Universal formalism for data sharing and processing in clock comparison networks
Creators: name: Lodewyck, Jérôme
name: Targat, Rodolphe Le
name: Pottie, Paul-Eric
name: Benkler, Erik
name: Koke, Sebastian
name: Kronjäger, Jochen
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We present a mathematical framework adapted to the comparison of atomic clocks remotely connected by a complex network of optical or microwave links. This framework facilitates the computation of frequency ratios using a generic set of equations that are valid for a wide variety of clock architectures, making the comparison of a large number of clocks practical. This formalism suggests a generic data exchange protocol that can be used in clock comparison collaborations, for which data logging and decision taking are completely local procedures, independently implemented by the participants.
description: 21 pages, 5 figures
Growth of a Black Hole
Creators: name: Fronsdal, Christian
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: This paper studies the interpretation of physics near a Schwarzschild black hole. A scenario for creation and growth is proposed that avoids the conundrum of information loss. In this picture the horizon recedes as it is approached and has no physical reality. Radiation is likely to occur, but it cannot be predicted.
description: 12 pages, 2 figures, TeX file
SoRoTop: a hitchhiker's guide to topology optimization MATLAB code for design-dependent pneumatic-driven soft robots
Creators: name: Kumar, Prabhat
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Computer and information sciences

description: Demands for pneumatic-driven soft robots are constantly rising for various applications. However, they are often designed manually due to the lack of systematic methods. Moreover, design-dependent characteristics of pneumatic actuation pose distinctive challenges. This paper provides a compact MATLAB code, named SoRoTop, and its various extensions for designing pneumatic-driven soft robots using topology optimization. The code uses the method of moving asymptotes as the optimizer and builds upon the approach initially presented in Kumar et al.(Struct Multidiscip Optim 61 (4): 1637-1655, 2020). The pneumatic load is modeled using Darcy's law with a conceptualized drainage term. Consistent nodal loads are determined from the resultant pressure field using the conventional finite element approach. The robust formulation is employed, i.e., the eroded and blueprint design descriptions are used. A min-max optimization problem is formulated using the output displacements of the eroded and blueprint designs. A volume constraint is imposed on the blueprint design, while the eroded design is used to apply a conceptualized strain energy constraint. The latter constraint aids in attaining optimized designs that can endure the applied load without compromising their performance. Sensitivities required for optimization are computed using the adjoint-variable method. The code is explained in detail, and various extensions are also presented. It is structured into pre-optimization, MMA optimization, and post-optimization operations, each of which is comprehensively detailed. The paper also illustrates the impact of load sensitivities on the optimized designs. SoRoTop is provided in Appendix A and is available with extensions in the supplementary material and publicly at \url{https://github.com/PrabhatIn/SoRoTop}.
description: 31 pages, MATLAB codes
Real-Time Asphalt Pavement Layer Thickness Prediction Using Ground-Penetrating Radar Based on a Modified Extended Common Mid-Point (XCMP) Approach
Creators: name: Wang, Siqi
name: Leng, Zhen
name: Sui, Xin
name: Zhang, Weiguang
name: Ma, Tao
name: Zhu, Zehui
Publisher: name: arXiv
Year: 2024
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The conventional surface reflection method has been widely used to measure the asphalt pavement layer dielectric constant using ground-penetrating radar (GPR). This method may be inaccurate for in-service pavement thickness estimation with dielectric constant variation through the depth, which could be addressed using the extended common mid-point method (XCMP) with air-coupled GPR antennas. However, the factors affecting the XCMP method on thickness prediction accuracy haven't been studied. Manual acquisition of key factors is required, which hinders its real-time applications. This study investigates the affecting factors and develops a modified XCMP method to allow automatic thickness prediction of in-service asphalt pavement with non-uniform dielectric properties through depth. A sensitivity analysis was performed, necessitating the accurate estimation of time of flights (TOFs) from antenna pairs. A modified XCMP method based on edge detection was proposed to allow real-time TOFs estimation, then dielectric constant and thickness predictions. Field tests using a multi-channel GPR system were performed for validation. Both the surface reflection and XCMP setups were conducted. Results show that the modified XCMP method is recommended with a mean prediction error of 1.86%, which is more accurate than the surface reflection method (5.73%).
description: IEEE Transactions on Intelligent Transportation Systems (2024)
Electromagnetic corrections to baryon masses
Creators: name: Durand, Loyal
name: Ha, Phuoc
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We analyze the electromagnetic contributions to the octet and decuplet baryon masses using the heavy baryon approximation in chiral effective field theory and methods we developed in earlier analyses of the baryon masses and magnetic moments. Our methods connect simply to Morpurgo's general parametrization of the electromagnetic contributions and to semirelativistic quark models. Our calculations are carried out including the one-loop mesonic corrections to the basic electromagnetic interactions, so to two loops overall. We find that to this order in the chiral loop expansion there are no three-body contributions. The Coleman-Glashow relation and other sum rules derived in quark models with only two-body terms therefore continue to hold, and violations involve at least three-loop processes and can be expected to be quite small. We present the complete formal results and some estimates of the matrix elements here. Numerical calculations will be presented separately.
description: RevTeX4, 27 pages, 9 figures
The effect of voyager passport reading intervention on fourth grade reading comprehension
Creators: name: Harner, Rosanne
Publisher: name: Maryland Shared Open Access Repository
Year: 2010
Subjects: subject: Reading (Elementary) -- Research
subject: Fourth grade (Education) -- Research
subject: Education -- Research papers (Graduate)

description: The purpose of this study was to determine whether the use of the Voyager
Passport Reading Intervention Program would positively affect the reading
comprehension achievement of special education students in a selected fourth grade
classroom. The Qualitative Reading Inventory Test was the measurement used for this
study. To examine the effectiveness of the Voyager Passport Reading Program on
comprehension, this study utilized the pre-test/post-test quasi-experimental design. The
treatment, Voyager Passport reading intervention program, took place for a five month
period of time. A slight significant improvement was observed based on the pre and the
post-test results; therefore, the hypothesis was supported. Future research is
recommended using a larger group with a sample of students who are all at the same
educational performance level.
Optimisation and Performance Computation of a Phase Frequency Detector Module for IoT Devices
Creators: name: Hemel, Md. Shahriar Khan
name: Reaz, Mamun Bin Ibne
name: Ali, Sawal Hamid Bin Md
name: Bhuiyan, Mohammad Arif Sobhan
name: Miraz, Mahdi H.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: The Internet of Things (IoT) is pivotal in transforming the way we live and interact with our surroundings. To cope with the advancement in technologies, it is vital to acquire accuracy with the speed. A phase frequency detector (PFD) is a critical device to regulate and provide accurate frequency in IoT devices. Designing a PFD poses challenges in achieving precise phase detection, minimising dead zones, optimising power consumption, and ensuring robust performance across various operational frequencies, necessitating complex engineering and innovative solutions. This study delves into optimising a PFD circuit, designed using 90 nm standard CMOS technology, aiming to achieve superior operational frequencies. An efficient and high-frequency PFD design is crafted and analysed using cadence virtuoso. The study focused on investigating the impact of optimising PFD design. With the optimised PFD, an operational frequency of 5 GHz has been achieved, along with a power consumption of only 29 μW. The dead zone of the PFD was only 25 ps.
The Piecewise Parabolic Method for Multidimensional Relativistic Fluid Dynamics
Creators: name: Mignone, A.
name: Plewa, T.
name: Bodo, G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present an extension of the Piecewise Parabolic Method to special relativistic fluid dynamics in multidimensions. The scheme is conservative, dimensionally unsplit, and suitable for a general equation of state. Temporal evolution is second-order accurate and employs characteristic projection operators; spatial interpolation is piece-wise parabolic making the scheme third-order accurate in smooth regions of the flow away from discontinuities. The algorithm is written for a general system of orthogonal curvilinear coordinates and can be used for computations in non-cartesian geometries. A non-linear iterative Riemann solver based on the two-shock approximation is used in flux calculation. In this approximation, an initial discontinuity decays into a set of discontinuous waves only implying that, in particular, rarefaction waves are treated as flow discontinuities. We also present a new and simple equation of state which approximates the exact result for the relativistic perfect gas with high accuracy. The strength of the new method is demonstrated in a series of numerical tests and more complex simulations in one, two and three dimensions.
description: 39 pages, 11 figures
title: Concrete Barrier Geometrics
title: (US-41 Bridge in Henderson, Kentucky)
titleType: Subtitle
Creators: name: Kentucky Transportation Research Program
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 1983
Subjects: subject: Transportation Engineering

description: The bridge railing constructed on the approaches to the US-41 northbound bridge over the Ohio River at Henderson, Kentucky, is not in conformance with specifications The vertical face was constructed to be an average height of 4 3/4 inches above the pavement surface rather than the specified 3 inches. From the top of the vertical face, the barrier conformed to a standard New Jersey barrier. However, this meant the intersection between the two sloping surfaces was 14 1/2 inches rather than 13 inches above the pavement surface.  An analysis was conducted to ascertain whether the in-place barrier walls (bridge rail) are more or less hazardous than a wall built to specified dimensions. The major negative factor that may be associated with the railing, as constructed, was an increased tendency for vehicle rollovers compared to a rail built with specified dimensions. However, there has not been any substantial differences observed in overall accident severity (using Kentucky or other accident data) between a barrier with dimensions as constructed on US-41 (New Jersey Modified) and the standard New Jersey or General Motors barrier. In addition, potential problems associated with the barrier dimensions will be mitigated by the slope of the roadway cross section and the high probability that collisions will be at low impact angles. In summary, no conclusive evidence was found to show that the overall performance of the barrier (bridge rail), as constructed, will be more or less hazardous than the barrier rail as specified.
Transport of Atom Packets in a Train of Ioffe-Pritchard Traps
Creators: name: Lahaye, Thierry
name: Reinaudi, Gael
name: Wang, Zhaoying
name: Couvert, Antoine
name: Guéry-Odelin, David
Publisher: name: arXiv
Year: 2006
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We demonstrate transport and evaporative cooling of several atomic clouds in a chain of magnetic Ioffe-Pritchard traps moving at a low speed ($<1$~m/s). The trapping scheme relies on the use of a magnetic guide for transverse confinement and of magnets fixed on a conveyor belt for longitudinal trapping. This experiment introduces a new approach for parallelizing the production of Bose-Einstein condensates as well as for the realization of a continuous atom laser.
Wege und Irrwege katholisch-lutherischer Kirchengemeinschaft
Creators: name: Nørgaard-Højen, Peder
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 34 Nr. 4 (1985): Ökumenische Rundschau, Band 34, Heft 4
3-3-1 Models at Electroweak Scale
Creators: name: Dias, Alex G.
name: Montero, J. C.
name: Pleitez, V.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show that in 3-3-1 models there exist a natural relation among the $SU(3)_L$ coupling constant $g$, the electroweak mixing angle $θ_W$, the mass of the $W$, and one of the vacuum expectation values, which implies that those models can be realized at low energy scales and, in particular, even at the electroweak scale. So that, being that symmetries realized in Nature, new physics may be really just around the corner.
description: 10 pages, version to be published in Physics Letters B
Evolution of cross-correlation and time lag of Cyg X-2 along the branches
Creators: name: Lei, Y. J.
name: Qu, J. L.
name: Song, L. M.
name: Zhang, C. M.
name: Zhang, S.
name: Zhang, F.
name: Wang, J. M.
name: Li, Z. B.
name: Zhang, G. B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report the detections of the anti-correlated soft and hard X-rays, and the time lags of $\sim$ hecto-second from the neutron star low-mass X-ray binary Cyg X-2, a well-known Z-type luminous source. Both the anti-correlation and the positive correlation were detected during the low-intensity states, while only the latter showed up during high-intensity states. Comparing with the lower part of normal branch and flaring branch, more observations located on the horizontal and the upper normal branches are accompanied with the anti-correlation, implying the occurrence of the anti-correlation under circumstance of a low mass accretion rate. So far the anti-correlated hard lag of thousand-second timescale are only reported from the Galactic black hole candidates in their hard states. Here we provide the first evidence that a similar feature can also establish in a neutron-star system like Cyg X-2. Finally, the possible origins of the observed time lags are discussed under the current LMXB models.
description: 23 pages 106 figures accepted for publication in ApJ
Bundles with non-multiplicative $\hat{A}$-genus and spaces of metrics with lower curvature bounds
Creators: name: Frenck, Georg
name: Reinhold, Jens
Publisher: name: arXiv
Year: 2020
Subjects: subject: Differential Geometry (math.DG)
subject: Algebraic Topology (math.AT)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 53C21, 57R20, 57R22, 58D17

description: We construct smooth bundles with base and fiber products of two spheres whose total spaces have non-vanishing $\hat{A}$-genus. We then use these bundles to locate non-trivial rational homotopy groups of spaces of Riemannian metrics with lower curvature bounds for all Spin-manifolds of dimension six or at least ten which admit such a metric and are a connected sum of some manifold and $S^n \times S^n$ or $S^n \times S^{n+1}$, respectively. We also construct manifolds $M$ whose spaces of Riemannian metrics of positive scalar curvature have homotopy groups that contain elements of infinite order which lie in the image of the orbit map induced by the push-forward action of the diffeomorphism group of $M$.
description: 14 pages, 1 figure. v2: strengthened the main theorems and changed the title, reworked presentation following a referee report. Final version accepted for publication in Int. Math. Res. Not. (IMRN)
Additional file 1 of Polytraumatization in young male refugees from the Middle East and its association with internalizing and externalizing symptoms
Creators: name: EL-Awad, Usama
name: Reinelt, Tilman
name: Braig, Johanna
name: Nilles, Hannah
name: Kerkhoff, Denise
name: Schmees, Pia
name: Rueth, Jana-Elisa
name: Fathi, Atefeh
name: Vasileva, Mira
name: Petermann, Franz
name: Eschenbeck, Heike
name: Lohaus, Arnold
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Science Policy

description: Additional file 1: Table S1. Socio-demographic factors of participants. Table S2. Descriptive statistics and Pearson’s correlations for mental health outcomes (HSCL-37A) and PTE total (SLESQ). Table S3. Descriptive statistics and correlations for PTEs (SLESQ items), internalizing and externalizing symptoms (HSCL-37A subscale outcome).
Precise reddening and metallicity of NGC6752 from FLAMES spectra
Creators: name: Gratton, R. G.
name: Bragaglia, A.
name: Carretta, E.
name: De Angeli, F.
name: Lucatello, S.
name: Momany, Y.
name: Piotto, G.
name: Recio-Blanco, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: (abridged) Accurate reddenings for Globular Clusters could be obtained by comparing the colour-temperature obtained using temperatures from reddening-free indicator (Halpha), with that given by standard colour-temperature calibrations. From a single 1300 seconds exposure with FLAMES at VLT2 we obtained spectra centred on Halpha (R=6000, 5
description: accepted for publication on A&A
The Decay of Two Adjacent Sunspots Associated with Moving Magnetic Features
Creators: name: Peng, Yang
name: Xue, Zhike
name: Qu, Zhongquan
name: Wang, Jincheng
name: Xu, Zhe
name: Yang, Liheng
name: Zhou, Yian
Publisher: name: arXiv
Year: 2024
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The relationship between the decay of sunspots and moving magnetic features (MMFs) plays an important role in understanding the evolution of active regions. We present observations of two adjacent sunspots, the gap between them, and a lot of MMFs propagating from the gap and the sunspots' outer edges in NOAA Active Region 13023. The MMFs are divided into two types based on their magnetic field inclination angle: vertical (0°<γ<45°) and horizontal (45°<γ<90°) MMFs (V-MMFs and H-MMFs, respectively). The main results are as follows: (1) the mean magnetic flux decay rates of the two sunspots are -1.7*10^20 and -1.4*10^20 Mx/day; (2) the magnetic flux generation rate of all MMFs is calculated to be -1.9 *10^21 Mx/day, which is on average 5.6 times higher than the total magnetic flux loss rate of the sunspots; (3) the magnetic flux of V-MMFs (including a pore separated from the sunspots) is 1.4 times larger than the total lost magnetic flux of the two sunspots, and in a later stage when the pore has passed through the reference ellipse, the magnetic flux generation rate of the V-MMFs is almost the same as the magnetic flux loss rate of the sunspots; and (4) within the gap, the magnetic flux of V-MMFs is one third of the total magnetic flux. Few V-MMFs stream out from the sunspots at the nongap region. All observations suggest that MMFs with vertical magnetic fields are closely related to the disintegration of the sunspot, and most of the MMFs from the gap may originate directly from the sunspot umbra.
Additional file 1 of Clinical application of non-invasive prenatal diagnosis of phenylketonuria based on haplotypes via paired-end molecular tags and weighting algorithm
Creators: name: Peng, Dai
name: Ganye, Zhao
name: Gege, Sun
name: Yanjie, Xia
name: Ning, Liu
name: Xiangdong, Kong
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer

description: Additional file 1. Table S1. Statistics of target region sequencing data. Table S2. Statistics of the paternal or maternal haplotypes ofthe fetuses.
Simultaneous measurements on cosmic curvature and opacity using latest HII regions and $H(z)$ observations
Creators: name: Yang, Ying
name: Liu, Tonghua
name: Huang, Jiayuan
name: Cheng, Xiaolan
name: Biesiada, Marek
name: Wu, Shu-min
Publisher: name: arXiv
Year: 2024
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The different spatial curvatures of the universe affect the measurement of cosmological distances, which may also contribute to explaining the observed dimming of type Ia supernovae. This phenomenon may be caused by the opacity of the universe. Similarly, the opacity of the universe can lead to a bias in our measurements of curvature. Thus, it is necessary to measure cosmic curvature and opacity simultaneously. In this paper, we propose a new model-independent method to simultaneously measure the cosmic curvature and opacity by using the latest observations of HII galaxies acting as standard candles and the latest Hubble parameter observations. The machine learning method-Artificial Neural Network is adopted to reconstruct observed Hubble parameter $H(z)$ observations. Our results support a slightly opaque and flat universe at $1σ$ confidence level by using previous 156 HII regions sample. However, the negative curvature is obtained by using the latest 181 HII regions sample in the redshift range $z\sim 2.5$. More importantly, we obtain the simultaneous measurements with precision on the cosmic opacity $\rmΔτ\sim 10^{-2}$ and curvature $\rmΔΩ_K\sim 10^{-1}$. A strong degeneracy between the cosmic opacity and curvature parameters is also revealed in this analysis.
description: 11 pages, 5 figures
Shortcuts to Dynamic Polarization
Creators: name: Villazon, Tamiro
name: Claeys, Pieter W.
name: Polkovnikov, Anatoli
name: Chandran, Anushya
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Dynamic polarization protocols aim to hyperpolarize a spin bath by transferring spin polarization from a well-controlled qubit such as a quantum dot or a color defect. Building on techniques from shortcuts to adiabaticity, we design fast and efficient dynamic polarization protocols in central spin models that apply to dipolarly interacting systems. The protocols maximize the transfer of polarization via bright states at a nearby integrable point, exploit the integrability-breaking terms to reduce the statistical weight on dark states that do not transfer polarization, and realize experimentally accessible local counterdiabatic driving through Floquet-engineering. A master equation treatment suggests that the protocol duration scales linearly with the number of bath spins with a prefactor that can be orders of magnitude smaller than that of unassisted protocols. This work opens new pathways to cool spin baths and extend qubit coherence times for applications in quantum information processing and metrology.
description: 15+7 pages
Super-Chandrasekhar limiting mass white dwarfs as emergent phenomena of noncommutative squashed fuzzy spheres
Creators: name: Kalita, Surajit
name: Govindarajan, T. R.
name: Mukhopadhyay, Banibrata
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The indirect evidence for at least a dozen massive white dwarfs violating the Chandrasekhar mass-limit is considered to be one of the wonderful discoveries in astronomy for more than a decade. Researchers have already proposed a diverse amount of models to explain this astounding phenomenon. However, each of these models always carries some drawbacks. On the other hand, noncommutative geometry is one of the best replicas of quantum gravity, which is yet to be proved from observations. Madore introduced the idea of a fuzzy sphere to describe a formalism of noncommutative geometry. This article shows that the idea of a squashed fuzzy sphere can self-consistently explain the super-Chandrasekhar limiting mass white dwarfs. We further show that the length-scale beyond which the noncommutativity is prominent is an emergent phenomenon, and there is no prerequisite for an ad-hoc length-scale.
description: 20 pages including 7 figures; text is modified and references are updated: Accepted for publication in IJMPD