cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
New CP-violation and preferred-frame tests with polarized electrons
Creators: name: Heckel, B. R.
name: Cramer, C. E.
name: Cook, T. S.
name: Adelberger, E. G.
name: Schlamminger, S.
name: Schmidt, U.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We used a torsion pendulum containing $\sim 9 \times 10^{22}$ polarized electrons to search for CP-violating interactions between the pendulum's electrons and unpolarized matter in the laboratory's surroundings or the sun, and to test for preferred-frame effects that would precess the electrons about a direction fixed in inertial space. We find $|g_{\rm P}^e g_{\rm S}^N|/(\hbar c)< 1.7 \times 10^{-36}$ and $|g_{\rm A}^e g_{\rm V}^N|/(\hbar c) < 4.8 \times 10^{-56}$ for $λ> 1$AU. Our preferred-frame constraints, interpreted in the Kostelecký framework, set an upper limit on the parameter $|\bm{\tilde {b}}^e| \leq 5.0 \times 10^{-21}$ eV that should be compared to the benchmark value $m_e^2/M_{\rm Planck}= 2 \times 10^{-17}$ eV.
description: 4 figures, accepted for publication in Physical Review Letters
A multi-wavelength look at the GJ 9827 system -- No evidence of extended atmospheres in GJ 9827 b and d from HST and CARMENES data
Creators: name: Carleo, Ilaria
name: Youngblood, Allison
name: Redfield, Seth
name: Barris, Nuria Casasayas
name: Ayres, Thomas R.
name: Vannier, Hunter
name: Fossati, Luca
name: Palle, Enric
name: Livingston, John H.
name: Lanza, Antonino F.
name: Niraula, Prajwal
name: Alvarado-Gómez, Julián D.
name: Chen, Guo
name: Gandolfi, Davide
name: Guenther, Eike W.
name: Linsky, Jeffrey L.
name: Nagel, Evangelos
name: Narita, Norio
name: Nortmann, Lisa
name: Shkolnik, Evgenya L.
name: Stangret, Monika
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: GJ9827 is a bright star hosting a planetary system with three transiting planets. As a multi-planet system with planets that sprawl within the boundaries of the radius gap between terrestrial and gaseous planets, GJ9827 is an optimal target to study the evolution of the atmospheres of close-in planets with a common evolutionary history and their dependence from stellar irradiation. Here, we report on the Hubble Space Telescope (HST) and CARMENES transit observations of GJ9827 planets b and d. We performed a stellar and interstellar medium characterization from the ultraviolet HST spectra, obtaining fluxes for Ly-alpha and MgII of F(Ly-alpha) = (5.42+0.96-0.75) X 10^{-13} erg cm^{-2} s^{-1} and F(MgII) = (5.64 +- 0.24) X 10^{-14} erg cm^{-2} s^{-1}. We also investigated a possible absorption signature in Ly-alpha in the atmosphere of GJ9827b during a transit event from HST spectra, as well as H-alpha and HeI signature for the atmosphere of GJ9827b and d from CARMENES spectra. We found no evidence of an extended atmosphere in either of the planets. This result is also supported by our analytical estimations of mass-loss based on the measured radiation fields for all the three planets of this system, which led to a mass-loss rate of 0.4, 0.3, and 0.1 planetary masses per Gyr, for GJ9827b, c, and d respectively. These values indicate that the planets could have lost their volatiles quickly in their evolution and probably do not retain an atmosphere at the current stage.
Entire spacelike hypersurfaces of prescribed Gauss curvature in Minkowski space
Creators: name: Guan, Bo
name: Jian, Huaiyu
name: Schoen, Richard M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Analysis of PDEs (math.AP)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: We are concerned with spacelike convex hypersurfaces of positive constant (K-hypersurfaces) or prescribed Gauss curvature in Minkowski space. Our main purpose is to study entire solutions as well as the Dirichlet problem in bounded domains of the related Monge-Ampere equation.
description: 22pages
Linear dynamics of the semi-geostrophic equations in Eulerian coordinates on $\mathbb{R}^{3}$
Creators: name: Lisai, Stefania
name: Wilkinson, Mark
Publisher: name: arXiv
Year: 2020
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 35A01, 35B35, 35Q86

description: We consider a class of steady solutions of the semi-geostrophic equations on $\mathbb{R}^3$ and derive the linearised dynamics around those solutions. The linear PDE which governs perturbations around those steady states is a transport equation featuring a pseudo-differential operator of order 0. We study well-posedness of this equation in $L^2(\mathbb{R}^3;\mathbb{R}^3)$ introducing a representation formula for the solutions, and extend the result to the space of tempered distributions on $\mathbb{R}^{3}$. We investigate stability of the steady solutions by looking at plane wave solutions of the linearised problem, and discuss differences in the case of the quasi-geostrophic equations.
description: 20 pages
Low-redshift quasars in the SDSS Stripe 82 II: associated companion galaxies and signature of star formation
Creators: name: Stone, Maria Babakhanyan
name: Bettoni, Daniela
name: Falomo, Renato
name: Kotilainen, Jari Kalevi
name: Karhunen, Kalle
name: Paiano, Simona
name: Scarpa, Riccardo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present optical spectroscopy of the close companions of 22 low redshift (z<0.5) quasars (QSO) selected from a larger sample of QSO in the SDSS Stripe82 region for which both the host galaxy and the large scale environments have been investigated in our previous work. The new observations extend the number of QSO studied in our previous paper on close companion galaxies of 12 quasars. Our analysis here covers all 34 quasars from both this work and the previously published paper. We find that half of them (15 QSO; $\sim$44%) have at least one associated galaxy. Many (12 galaxies; $\sim$67%) of the associated companions exhibit [OII] 3727 A emission line as signature of recent star formation. The star formation rate (SFR) of these galaxies is modest (median SFR $\sim$ 4.3 M$_{\odot}$ yr$^{-1}$). For 8 QSO we are also able to detect the starlight of the host galaxy from which 3 have a typical spectrum of a post-starburst galaxy. Our results suggest that quasars do not have a strong influence on the star formation of their companion galaxies.
description: 20 pages, 6 figures, accepted in MNRAS
An Abstract Monte-Carlo Method for the Analysis of Probabilistic Programs
Creators: name: Monniaux, David
Publisher: name: arXiv
Year: 2007
Subjects: subject: Programming Languages (cs.PL)
subject: Performance (cs.PF)
subject: FOS: Computer and information sciences

description: We introduce a new method, combination of random testing and abstract interpretation, for the analysis of programs featuring both probabilistic and non-probabilistic nondeterminism. After introducing "ordinary" testing, we show how to combine testing and abstract interpretation and give formulas linking the precision of the results to the number of iterations. We then discuss complexity and optimization issues and end with some experimental results.
Stretching An Anisotropic DNA
Creators: name: Eslami-Mossallam, B.
name: Ejtehadi, M. R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Biological Physics (physics.bio-ph)
subject: Biomolecules (q-bio.BM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We present a perturbation theory to find the response of an anisotropic DNA to the external tension. It is shown that the anisotropy has a nonzero but small contribution to the force-extension curve of the DNA. Thus an anisotropic DNA behaves like an isotropic one with an effective bending constant equal to the harmonic average of its soft and hard bending constants.
description: 29 pages and 4 figure. To appear in J. Chem. Phys
On the Convergence of the Born Series in Optical Tomography with Diffuse Light
Creators: name: Markel, Vadim A.
name: Schotland, John C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We provide a simple sufficient condition for convergence of Born series in the forward problem of optical diffusion tomography. The condition does not depend on the shape or spatial extent of the inhomogeneity but only on its amplitude.
description: 23 pages, 7 figures, submitted to Inverse Problems
The far reaches of the beta Pictoris debris disk
Creators: name: Janson, Markus
name: Brandeker, Alexis
name: Olofsson, Göran
name: Liseau, Rene
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The nearby young star beta Pictoris hosts a rich and complex planetary system, with at least two giant planets and a nearly edge-on debris disk that contains several dynamical subpopulations of planetesimals. While the inner ranges of the debris disk have been studied extensively, less information is known about the outer, fainter parts of the disk. Here we present an analysis of archival FORS V-band imaging data from 2003-2004, which have previously not been explored scientifically because the halo substructure of the bright stellar point spread function is complex. Through a high-contrast scheme based on angular differential imaging, with a forward-modelling approach to mitigate self-subtraction, we produced the deepest imaging yet for the outer range of the beta Pic disk, and extracted its morphological characteristics. A brightness asymmetry between the two arms of the edge-on disk, which was previously noted in the inner disk, is even more pronounced at larger angular separations, reaching a factor ~10 around 1000 AU. Approaching 2000 AU, the brighter arm is visible at a surface brightness of 27-28 mag/arcsec^2. Much like for the brightness asymmetry, a tilt angle asymmetry exists between the two arms that becomes increasingly extreme at large separations. The outer tilt angle of 7.2 deg can only be explained if the outer disk is farther from an edge-on inclination than the inner disk, or if its dust has a stronger scattering anisotropy, or (most likely) both. The strong asymmetries imply the presence of a highly eccentric kinematic disk component, which may have been caused by a disruptive event thought to have taken place at a closer-in location in the disk.
description: 11 pages, 11 figures, accepted for publication in A&A
Sensors for expert grip force profiling: towards benchmarking manual control of a robotic device for surgical tool movements
Creators: name: de Mathelin, Michel
name: Nageotte, Florent
name: Zanne, Philippe
name: Dresp-Langley, Birgitta
Publisher: name: arXiv
Year: 2020
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: STRAS (Single access Transluminal Robotic Assistant for Surgeons) is a new robotic system for application to intraluminal surgical procedures. Preclinical testing of STRAS has recently permitted to demonstrate major advantages of the system in comparison with classic procedures. Benchmark methods permitting to establish objective criteria for expertise need to be worked out now to effectively train surgeons on this new system in the near future. STRAS consists of three cable driven subsystems, one endoscope serving as guide, and two flexible instruments. The flexible instruments have three degrees of freedom and can be teleoperated by a single user via two specially designed master interfaces. In this study here, small force sensors sewn into a wearable glove to ergonomically fit the master handles of the robotic system were employed for monitoring the forces applied by an expert and a trainee who was a complete novice during all the steps of surgical task execution in a simulator task, a four step pick and drop. Analysis of gripforce profiles is performed sensor by sensor to bring to the fore specific differences in handgrip force profiles in specific sensor locations on anatomically relevant parts of the fingers and hand controlling the master slave system.
The new HiVIS spectropolarimeter and spectropolarimetric calibration of the AEOS telescope
Creators: name: Harrington, D. M.
name: Kuhn, J. R.
name: Whitman, K.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We designed, built, and calibrated a new spectropolarimeter for the HiVIS spectrograph (R 12000-49000) on the AEOS telescope. We also did a polarization calibration of the telescope and instrument. We will introduce the design and use of the spectropolarimeter as well as a new data reduction package we have developed, then discuss the polarization calibration of the spectropolarimeter and the AEOS telescope. We used observations of unpolarized standard stars at many pointings to measure the telescope induced polarization and compare it with a Zemax model. The telescope induces polarization of 1-6% with a strong variation with wavelength and pointing, consistent with the altitude and azimuth variation expected. We then used scattered sunlight as a linearly polarized source to measure the telescopes spectropolarimetric response to linearly polarized light. We then made an all-sky map of the telescope's polarization response to calibrate future spectropolarimetry.
description: PASP 118, June 2006
Additional file 3 of RNA-seq analysis identified glucose-responsive genes and YqfO as a global regulator in Bacillus subtilis
Creators: name: Kanesaki, Yu
name: Ogura, Mitsuo
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 3: Figure S1. Electromobility shift assay of YqfO using the promoter region of the thiL operon.
The Sobolev approximation for radiation transport with line overlap and continuous opacity
Creators: name: Nesterenok, Aleksandr
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The radiation transport problem in the plane-parallel medium with the large velocity gradient is considered. The Sobolev approximation is used. The effects of continuum absorption and line overlap are taken into account. The photon loss probability functions are calculated and tabulated. Two calculations are performed - for the Gaussian spectral line profile and for the rectangular profile. It is shown that at particular choice of the rectangular profile width the results of the calculations are very close. The evaluated photon loss probability functions may be used in the calculations of energy level populations of OH molecule in the interstellar gas flows.
description: Accepted for publication in Journal of Physics: Conference Series
Time in architecture : constancy and change as a means of investigating resource conservation in buildings
Creators: name: Lafrenière, Julie
Publisher: name: University of British Columbia
Year: 2009

description: Very little work is currently being undertaken that discusses the place of environmental information within the broader context of decision-making in architectural design. In practice, environmental concerns and strategies will be placed alongside others within the arena of decision making, and simple questions such as which is 'the best environmental option' quickly become relatively meaningless amongst the multiple concerns involved in architectural design. One particular difficulty related to the decision making process for a better environmental solution is the prediction of overall benefits within a short and long term perspective. This thesis presents the process and the results of a design based research which investigates and defines a set of most significant design strategies leading to a resource conservation in buildings over time. Potential environmental strategies for resource conservation are selected in relationship to issues and consequences of time on a building. The thesis is developed around the two concepts of constancy and change as the main focus of the research. Issues of constant site-specific characteristics over time, of changing context, changing users' needs and changing buildings' requirements are investigated as potential environmental options, and are discussed regarding their contribution to a resource conservation in buildings. The design of a 5000 m2 mixed-use retail/office/residential building within an urban setting is used to contextualize and investigate these potential environmental options, accounting for their relationships with other significant design considerations. The results of the research are presented in terms of both design decisions prioritized in direct relationship with the project, and a series of design strategies which are generalizable to other projects developed \ within a similar context of mixed-use program and urban setting. By considering the points at which environmental information is applied in design, the paper identifies a more realistic basis for prioritization of information and, more significantly, begins to fill the currently missing, but essential, feed-back loop from practice to research.
Varieties with quadratic entry locus, I
Creators: name: Russo, Francesco
Publisher: name: arXiv
Year: 2007
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: Quadratic entry locus manifold of type $δ$ $X\subset\mathbb P^N$ of dimension $n\geq 1$ are smooth projective varieties such that the locus described on $X$ by the points spanning secant lines passing through a general point of the secant variety $SX\subseteq\mathbb P^N$ is a smooth quadric hypersurface of dimension $δ=2n+1-\dim(SX)$ equal to the secant defect of $X$. These manifolds appear widely and naturally among projective varieties having special geometric properties and/or extremal tangential behaviour. We prove that, letting $δ=2r_X +1\geq 3$ or $δ=2r_X+2$, then $2^{r_X}$ divides $n-δ$. This is obtained by the study of the projective geometry of the Hilbert scheme $Y_x\subset \mathbb(T_x^*)$ of lines passing through a general point $x$ of $X$, allowing an inductive procedure. The Divisibility Property described above allows unitary and simple proofs of many results on $QEL$-manifolds such as the complete classification of those of type $δ\geq n/2$, of Cremona transformation of type $(2,3)$, $(2,5)$. In particular we propose a new and very short proof of the fact that Severi varieties have dimension 2,4, 8 or 16 and also an almost self contained half page proof of their classification due to Zak.
description: 16 pages; some misprints and imprecisions corrected; some references added; final version as appeared in Math. Ann
การวิเคราะห์การจัดการธุรกิจและการจัดการสิ่งแวดล้อมในระบบเศรษฐกิจพอเพียง โดยใช้แบบจำลองตารางปัจจัยการผลิตและผลผลิต หลักการสมดุลมวล และระบบนิเวศอุตสาหกรรม
Creators: name: Sompote Kunnoot
name: Wisakha Phoochinda
Publisher: name: National Institute of Development Administration
Year: 2007

description: 3, 47, NIDA Development Journal
Additional file 1 of Detection of low-frequency earthquakes by the matched filter technique using the product of mutual information and correlation coefficient
Creators: name: Kurihara, Ryo
name: Kato, Aitaro
name: Kurata, Sumito
name: Nagao, Hiromichi
Publisher: name: figshare
Year: 2021
Subjects: subject: Geophysics
subject: FOS: Earth and related environmental sciences

description: Additional file 1: Figure S1 Values of CC|CC| (Gibbons, 2021) and MICC from 0:00 to 12:00 on December 21, 2010. The right axis shows each index after normalization by the MAD. The MAD is calculated using the half-day waveform data. Figure S2. Three-components, 1–8 Hz bandpass-filtered waveforms of the earthquake recorded at the six stations. Three waveforms E-W, N-S, U-D components are plotted from top. Each waveform is normalized by the maximum absolute amplitude, which is written in the right of the Figure. Figure S3. Three-components, 1–8 Hz bandpass-filtered waveforms of a mis-detected event of surface wave recorded at the six stations. Figure S4. Three-components, 1–8 Hz bandpass-filtered waveforms of a false negative event, which is detected by summed CC and not detected by MICC at N.SUKH, at six stations
Rational approximations to $\sqrt[3]{2}$ and other algebraic numbers revisited
Creators: name: Voutier, P. M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Number Theory (math.NT)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 11J68, 33C05

description: In this paper, we establish improved effective irrationality measures for certain numbers of the form $\sqrt[3]{n}$, using approximations obtained from hypergeometric functions. These results are very close to the best possible using this method. We are able to obtain these results by determining very precise arithmetic information about the denominators of the coefficients of these hypergeometric functions. Improved bounds for $θ(k,l;x)$ and $ψ(k,l;x)$ for $k=1,3,4,6$ are also presented.
description: published version, but with some small changes, including typo in statement of Lemma 5.1(b), leading to simpler proof of Theorem 2.1
title: A case report of a fatty tumour of the thigh revealing a lipoblastoma in an infant
Creators: name: Jamil, Jihad
Publisher: name: EURORAD
Year: 2024
Subjects: subject: Paediatric radiology
subject: Musculoskeletal system
subject: Neuroradiology brain
subject: CT
subject: MR
subject: Clinical Case

description: Clinical History: A 16-month-old male infant presented with a swelling of the posterior aspect of the right thigh that had been progressively evolving for 4 months, in the context of apyrexia and preservation of general condition. Clinical examination revealed a firm, painless mass, with no associated inflammatory signs, mobile about the superficial plane and fixed about the deep plane, measuring 10 cm.

description: 16 months, male
A deep Q-Learning based Path Planning and Navigation System for Firefighting Environments
Creators: name: Bhattarai, Manish
name: Martinez-Ramon, Manel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Live fire creates a dynamic, rapidly changing environment that presents a worthy challenge for deep learning and artificial intelligence methodologies to assist firefighters with scene comprehension in maintaining their situational awareness, tracking and relay of important features necessary for key decisions as they tackle these catastrophic events. We propose a deep Q-learning based agent who is immune to stress induced disorientation and anxiety and thus able to make clear decisions for navigation based on the observed and stored facts in live fire environments. As a proof of concept, we imitate structural fire in a gaming engine called Unreal Engine which enables the interaction of the agent with the environment. The agent is trained with a deep Q-learning algorithm based on a set of rewards and penalties as per its actions on the environment. We exploit experience replay to accelerate the learning process and augment the learning of the agent with human-derived experiences. The agent trained under this deep Q-learning approach outperforms agents trained through alternative path planning systems and demonstrates this methodology as a promising foundation on which to build a path planning navigation assistant capable of safely guiding fire fighters through live fire environments.
description: Accepted to ICAART2021
Anisotropic weak turbulence of Alfven waves in collisionless astrophysical plasmas
Creators: name: Luo, Q.
name: Melrose, D. B.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The evolution of Alfven turbulence due to three-wave interactions is discussed using kinetic theory for a collisionless, thermal plasma. There are three low-frequency modes, analogous to the three modes of compressible MHD. When only Alfven waves are considered, the known anisotropy of turbulence in incompressible MHD theory is reproduced. Inclusion of a fast mode wave leads to separation of turbulence into two regimes: small wave numbers where three-wave processes involving a fast mode is dominant, and large wave numbers where the three Alfven wave process is dominant. Possible application of the anisotropic Alfven turbulence to the interstellar medium and dissipation of magnetic energy in magnetars is discussed.
description: 9 pages, accepted for publication in MNRAS
Comparison between Networked Control System behaviour based on CAN and Switched Ethernet networks
Creators: name: Brahimi, Belynda
name: Rondeau, Eric
name: Aubrun, Christophe
Publisher: name: arXiv
Year: 2006
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: The distributed control systems are more and more used in many industrial applications. These systems are often referred as "Networked control systems". The goal of this paper is to show the network influence on feedback control systems. Two networks are considered: Switched Ethernet network and CAN fieldbus. The first one represents the non deterministic network and second one represents the deterministic one. Several scenarii are studied to analyse the stability of system according to different network parameters (packets losses, congestion and frame priority). The Truetime simulator is used in this work.
description: 7 pages
Data@Hand: Fostering Visual Exploration of Personal Data on Smartphones Leveraging Speech and Touch Interaction
Creators: name: Kim, Young-Ho
name: Lee, Bongshin
name: Srinivasan, Arjun
name: Choe, Eun Kyoung
Publisher: name: arXiv
Year: 2021
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences
subject: H.5.2

description: Most mobile health apps employ data visualization to help people view their health and activity data, but these apps provide limited support for visual data exploration. Furthermore, despite its huge potential benefits, mobile visualization research in the personal data context is sparse. This work aims to empower people to easily navigate and compare their personal health data on smartphones by enabling flexible time manipulation with speech. We designed and developed Data@Hand, a mobile app that leverages the synergy of two complementary modalities: speech and touch. Through an exploratory study with 13 long-term Fitbit users, we examined how multimodal interaction helps participants explore their own health data. Participants successfully adopted multimodal interaction (i.e., speech and touch) for convenient and fluid data exploration. Based on the quantitative and qualitative findings, we discuss design implications and opportunities with multimodal interaction for better supporting visual data exploration on mobile devices.
description: To appear in ACM CHI 2021 Conference on Human Factors in Computing Systems; 16 pages, 6 figures, 5 tables
Paramaterizations of inclusive cross sections for pion production in proton-proton collisions. II. Comparison to new data
Creators: name: Norbury, John W.
name: Townsend, Lawrence W.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A set of new, precise data have recently been made available by the NA49 collaboration for charged pion production in proton-proton and proton-Carbon reactions at 158 GeV. The current paper compares this new data to five currently available arithmetic parameterizations. Although a precise fit is not expected, two of the parameterizations do not work very well but the other three are able to provide a moderately good, but not precise fit to the proton-proton data. The best two of these three parameterizations are scaled to the proton-Carbon data and again provide a moderately good, but not precise fit.
description: 11 pages, 13 figures, Accepted for publication in Physical Review D
Non-Equilibrium Effects of Molecular Motors on Polymers
Creators: name: Foglino, M.
name: Locatelli, E.
name: Brackley, C. A.
name: Michieletto, D.
name: Likos, C.
name: Marenduzzo, D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We present a generic coarse-grained model to describe molecular motors acting on polymer substrates, mimicking, for example, RNA polymerase on DNA or kinesin on microtubules. The polymer is modeled as a connected chain of beads; motors are represented as freely diffusing beads which, upon encountering the substrate, bind to it through a short-ranged attractive potential. When bound, motors and polymer beads experience an equal and opposite active force, directed tangential to the polymer; this leads to motion of the motors along the polymer contour. The inclusion of explicit motors differentiates our model from other recent active polymer models. We study, by means of Langevin dynamics simulations, the effect of the motor activity on both the conformational and dynamical properties of the substrate. We find that activity leads, in addition to the expected enhancement of polymer diffusion, to an effective reduction of its persistence length. We discover that this effective "softening" is a consequence of the emergence of double-folded branches, or hairpins, and that it can be tuned by changing the number of motors or the force they generate. Finally, we investigate the effect of the motors on the probability of knot formation. Counter-intuitively our simulations reveal that, even though at equilibrium a more flexible substrate would show an increased knotting probability, motor activity leads to a marked decrease in the occurrence of knotted conformations with respect to equilibrium.
description: 26 pages, 8 figures
Toward logarithmic extensions of ^sl(2)_k conformal field models
Creators: name: Semikhatov, AM
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: For positive integer p=k+2, we construct a logarithmic extension of the ^sl(2)_k conformal field theory of integrable representations by taking the kernel of two fermionic screening operators in a three-boson realization of ^sl(2)_k. The currents W^-(z) and W^+(z) of a W-algebra acting in the kernel are determined by a highest-weight state of dimension 4p-2 and charge 2p-1, and a (theta=1)-twisted highest-weight state of the same dimension 4p-2 and charge -2p+1. We construct 2p W-algebra representations, evaluate their characters, and show that together with the p-1 integrable representation characters they generate a modular group representation whose structure is described as a deformation of the (9p-3)-dimensional representation $R_{p-1} \oplus C^2 \tensor R_{p-1} \oplus R_{p-1} \oplus C^2 \tensor R_{p-1} \oplus C^3 \tensor R_{p-1}$, where R_{p-1} is the SL(2,Z)-representation on integrable representation characters and R_{p-1} is a (p+1)-dimensional SL(2,Z)-representation known from the logarithmic (p,1) model. The dimension 9p-3 is conjecturally the dimension of the space of torus amplitudes, and the C^n with n=2 and 3 suggest the Jordan cell sizes in indecomposable W-algebra modules. Under Hamiltonian reduction, the W-algebra currents map into the currents of the triplet W-algebra of the logarithmic (p,1) model.
description: 54 pages, amsart++, xy, graphicx, times&mathptmx. V2: references added, some changes in the presentation
Far-field intensity signature of sub-wavelength microscopic objects
Creators: name: Bancerek, Maria
name: Czajkowski, Krzysztof M.
name: Kotynski, Rafal
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Image and Video Processing (eess.IV)
subject: FOS: Physical sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Information about microscopic objects with features smaller than the diffraction limit is almost entirely lost in a far-field diffraction image but could be partly recovered with data completition techniques. Any such approach critically depends on the level of noise. This new path to superresolution has been recently investigated with the use of compressed sensing and machine learning. We demonstrate a two-stage technique based on deconvolution and genetic optimization which enables the recovery of objects with features of 1/10 of the wavelength. We indicate that l1-norm based optimization in the Fourier domain unrelated to sparsity is more robust to noise than its l2-based counterpart. We also introduce an extremely fast general-purpose restricted domain calculation method for Fourier transform based iterative algorithms operating on sparse data.
Additional file 4 of Flimma: a federated and privacy-aware tool for differential gene expression analysis
Creators: name: Zolotareva, Olga
name: Nasirigerdeh, Reza
name: Matschinske, Julian
name: Torkzadehmahani, Reihaneh
name: Bakhtiari, Mohammad
name: Frisch, Tobias
name: Späth, Julian
name: Blumenthal, David B.
name: Abbasinejad, Amir
name: Tieri, Paolo
name: Kaissis, Georgios
name: Rückert, Daniel
name: Wenke, Nina K.
name: List, Markus
name: Baumbach, Jan
Publisher: name: figshare
Year: 2021
Subjects: 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: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 4 Supplementary Text and Figures S1-S3
Imitation-Based Active Camera Control with Deep Convolutional Neural Network
Creators: name: Kyrkou, Christos
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: The increasing need for automated visual monitoring and control for applications such as smart camera surveillance, traffic monitoring, and intelligent environments, necessitates the improvement of methods for visual active monitoring. Traditionally, the active monitoring task has been handled through a pipeline of modules such as detection, filtering, and control. In this paper we frame active visual monitoring as an imitation learning problem to be solved in a supervised manner using deep learning, to go directly from visual information to camera movement in order to provide a satisfactory solution by combining computer vision and control. A deep convolutional neural network is trained end-to-end as the camera controller that learns the entire processing pipeline needed to control a camera to follow multiple targets and also estimate their density from a single image. Experimental results indicate that the proposed solution is robust to varying conditions and is able to achieve better monitoring performance both in terms of number of targets monitored as well as in monitoring time than traditional approaches, while reaching up to 25 FPS. Thus making it a practical and affordable solution for multi-target active monitoring in surveillance and smart-environment applications.
description: Paper accepted in Fourth IEEE International Conference on Image Processing, Applications, and Systems (IEEE IPAS 2020)
Probabilistic Resistive Switching Device modeling based on Markov Jump processes
Creators: name: Ntinas, Vasileios
name: Rubio, Antonio
name: Sirakoulis, Georgios Ch.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Emerging Technologies (cs.ET)
subject: FOS: Computer and information sciences

description: In this work, a versatile mathematical framework for multi-state probabilistic modeling of Resistive Switching (RS) devices is proposed for the first time. The mathematical formulation of memristor and Markov jump processes are combined and, by using the notion of master equations for finite-states, the inherent probabilistic time-evolution of RS devices is sufficiently modeled. In particular, the methodology is generic enough and can be applied for $N$ states; as a proof of concept, the proposed framework is further stressed for both two-state RS paradigm, namely $N=2$, and multi-state devices, namely $N=4$. The presented I-V results demonstrate in a qualitative and quantitative manner, adequate matching with other modeling approaches.
Cosmic Ray Astronomy
Creators: name: Sommers, Paul
name: Westerhoff, Stefan
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Cosmic ray astronomy attempts to identify and study the sources of ultrahigh energy cosmic rays. It is unique in its reliance on charged particles as the information carriers. While no discrete source of ultrahigh energy cosmic rays has been identified so far, a new generation of detectors is acquiring the huge exposure that is needed at the highest energies, where deflection by magnetic fields is minimized and the background from distant sources is eliminated by pion photoproduction. In this paper, we summarize the status of cosmic ray astronomy, describing the detectors and the analysis techniques.
description: 27 pages, 3 figures, review to appear in New Journal of Physics [Focus Issue]
Correlating grip force signals from multiple sensors highlights prehensile control strategies in a complex task-user system
Creators: name: Dresp-Langley, Birgitta
name: Nageotte, Florent
name: Zanne, Philippe
name: de Mathelin, Michel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Wearable sensor systems with transmitting capabilities are currently employed for the biometric screening of exercise activities and other performance data. Such technology is generally wireless and enables the noninvasive monitoring of signals to track and trace user behaviors in real time. Examples include signals relative to hand and finger movements or force control reflected by individual grip force data. As will be shown here, these signals directly translate into task, skill, and hand specific, dominant versus non dominant hand, grip force profiles for different measurement loci in the fingers and palm of the hand. The present study draws from thousands of such sensor data recorded from multiple spatial locations. The individual grip force profiles of a highly proficient left handed exper, a right handed dominant hand trained user, and a right handed novice performing an image guided, robot assisted precision task with the dominant or the non dominant hand are analyzed. The step by step statistical approach follows Tukeys detective work principle, guided by explicit functional assumptions relating to somatosensory receptive field organization in the human brain. Correlation analyses in terms of Person Product Moments reveal skill specific differences in covariation patterns in the individual grip force profiles. These can be functionally mapped to from global to local coding principles in the brain networks that govern grip force control and its optimization with a specific task expertise. Implications for the real time monitoring of grip forces and performance training in complex task user systems are brought forward.
QSO Lensing Magnification: A Comparison of 2QZ and SDSS Results
Creators: name: Mountrichas, G.
name: Shanks, T.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The lensing of background QSOs by foreground galaxies is a powerful probe of the mass density of the Universe and the power spectrum of mass clustering. However, the 2dF QSO survey suggested that a strong anticorrelation effect at g<21 was seen for both galaxies and clusters which implied that galaxies are anti-biased (b~0.1) on small scales at a higher level than predicted by the standard cosmology (Myers et al., 2003, 2005) whereas results from SDSS suggested that the effect was much smaller (b~0.6) and in line with standard expectations (Scranton et al., 2005). We first cross-correlate the SDSS photo-z, g<21, 1.0
description: 15 pages, 20 figures, accepted by MNRAS
Uncertainties in Galaxy Rotation Curves
Creators: name: Sellwood, J A
name: Spekkens, Kristine
name: Eckel, Carter S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Assessing the likelihood that the rotation curve of a galaxy matches predictions from galaxy formation simulations requires that the uncertainties in the circular speed as a function of radius derived from the observational data be statistically robust. Few uncertainties presented in the literature meet this requirement. In this paper we present a new standalone tool, makemap, that estimates the fitted velocity at each pixel from Gauss-Hermite fits to a 3D spectral data cube, together with its uncertainty obtained from a modified bootstrap procedure. We apply this new tool to neutral hydrogen spectra for 18 galaxies from the THINGS sample, and present new velocity maps with uncertainties. We propagate the estimated uncertainties in the velocity map into our previously-described model fitting tool DiskFit to derive new rotation curves. The uncertainties we obtain from these fits take into account not only the observational errors, but also uncertainties in the fitted systemic velocity, position of the rotation centre, inclination of the galaxy to the line of sight, and forced non-circular motion. They are therefore much better-defined than values that have previously been available. Our estimated uncertainties on the circular speeds differ from previous estimates by factors ranging up to of five, being smaller in some cases and larger in others. We conclude that kinematic models of well-resolved HI datasets vary widely in their precision and reliability, and therefore potentially in their value for comparisons with predictions from cosmological galaxy formation simulations.
description: 31 pages, 22 figures, accepted to appear in MNRAS. A complete version with full resolution figures is posted at https://www.physics.rutgers.edu/~sellwood/makemap.pdf (v2 fixed typo in Vsys for N2403)
Cosmic Rays from the Knee to the Ankle - Status and Prospects -
Creators: name: Kampert, Karl-Heinz
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Recent progress in cosmic ray physics covering the energy range from about 10^{14} eV to 10^{19} eV is reviewed. The most prominent features of the energy spectrum are the so called `knee' at E ~ 3 * 10^{15} eV and the `ankle' at few 10^{18} eV. Generally, the origin of the knee is understood as marking the limiting energy of galactic accelerators and/or the onset of increasing outflow of particles from the galaxy while the ankle is considered to mark the transition from galactic to extragalactic cosmic rays. Alternative theories do exist and shall be sketched. A key observable to answer the still open questions about the cosmic ray origin and to discriminate between various models is given by measuring the chemical composition or - more directly - by measuring energy spectra of individual cosmic ray mass groups. The status of present analyses is critically discussed and new experimental endeavors carried out in order to improve both the statistics and the quality of data particularly at energies above the knee will be summarized.
description: Invited paper presented at the CRIS 2006 Cosmic Ray International Seminar; 14 pages, 8 figures
Factors Influencing Return to Narcotic Taking of Drug Users who were Released from the Narcotic Remedy Program: A Case Study of an Adolescent Group in Phetchaburi Province Area, Thailand
Creators: name: Tawadchai Suppadit
name: Pakkapong Poungsuk
name: Parinya Srisukond
Publisher: name: National Institute of Development Administration
Year: 2007

description: 2, 47, NIDA Development Journal
Additional file 9 of Flimma: a federated and privacy-aware tool for differential gene expression analysis
Creators: name: Zolotareva, Olga
name: Nasirigerdeh, Reza
name: Matschinske, Julian
name: Torkzadehmahani, Reihaneh
name: Bakhtiari, Mohammad
name: Frisch, Tobias
name: Späth, Julian
name: Blumenthal, David B.
name: Abbasinejad, Amir
name: Tieri, Paolo
name: Kaissis, Georgios
name: Rückert, Daniel
name: Wenke, Nina K.
name: List, Markus
name: Baumbach, Jan
Publisher: name: figshare
Year: 2021
Subjects: 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: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 9 Review history.
Using heritability of stellar chemistry to reveal the history of the Milky Way
Creators: name: Jackson, Holly
name: Jofre, Paula
name: Yaxley, Keaghan
name: Das, Payel
name: Silva, Danielle de Brito
name: Foley, Robert
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Since chemical abundances are inherited between generations of stars, we use them to trace the evolutionary history of our Galaxy. We present a robust methodology for creating a phylogenetic tree, a biological tool used for centuries to study heritability. Combining our phylogeny with information on stellar ages and dynamical properties, we reconstruct the shared history of 78 stars in the Solar Neighbourhood. The branching pattern in our tree supports a scenario in which the thick disk is an ancestral population of the thin disk. The transition from thick to thin disk shows an anomaly, which we attribute to a star formation burst. Our tree shows a further signature of the variability in stars similar to the Sun, perhaps linked to a minor star formation enhancement creating our Solar System. In this paper, we demonstrate the immense potential of a phylogenetic perspective and interdisciplinary collaboration, where with borrowed techniques from biology we can study key processes that have contributed to the evolution of the Milky Way.
description: submitted to MNRAS. comments welcomed
Erratum: New methods of testing Lorentz violation in electrodynamics
Creators: name: Hohensee, Michael
name: Glenday, Alex
name: Li, Chih-Hao
name: Tobar, Michael Edmund
name: Wolf, Peter
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In an earlier paper [1] (hep-ph/0408006), the bound on the Standard Model Extension photon-sector parameter $\tildeκ_{tr}$ [2] (hep-ph/0205211) set by the heavy-ion storage-ring experiment of Saathoff et al. [3] was incorrectly reported. We show that the correct bound on $\tildeκ_{tr}$ which resulted from this experiment is in fact $2.2\times 10^{-7}$.
description: This erratum corrects the article hep-ph/0408006 published in Phys. Rev. D71 (2005) 025004. To appear in Phys. Rev. D