cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Quantum coherence and spin nematic to nematic quantum phase transitions in biquadratic spin-1 and -2 XY chains with rhombic single-ion anisotropy
Creators: name: Mao, Rui
name: Dai, Yan-Wei
name: Cho, Sam Young
name: Zhou, Huan-Qiang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate quantum phase transitions and quantum coherence in infinite biquadratic spin-1 and -2 XY chains with rhombic single-ion anisotropy. All considered coherence measures such as the $l_1$ norm of coherence, the relative entropy of coherence, and the quantum Jensen-Shannon divergence, and the quantum mutual information show consistently that singular behaviors occur for the spin-1 system, which enables to identity quantum phase transitions. For the spin-2 system, the relative entropy of coherence and the quantum mutual information properly detect no singular behavior in the whole system parameter range, while the $l_1$ norm of coherence and the quantum Jensen-Shannon divergence show a conflicting singular behavior of their first-order derivatives. Examining local magnetic moments and spin quadrupole moments lead to the explicit identification of novel orderings of spin quadrupole moments with zero magnetic moments in the whole parameter space. We find the three uniaxial spin nematic quadrupole phases for the spin-1 system and the two biaxial spin nematic phases for the spin-2 system. For the spin-2 system, the two orthogonal biaxial spin nematic states are connected adiabatically without an explicit phase transition, which can be called quantum crossover. The quantum crossover region is estimated by using the quantum fidelity. Whereas for the spin-1 system, the two discontinuous quantum phase transitions occur between three distinct uniaxial spin nematic phases. We discuss the quantum coherence measures and the quantum mutual information in connection with the quantum phase transitions including the quantum crossover.
description: 12 pages, 7 figures
Audioguide Albrechtsburg Meissen: partizipativ - barrierefrei - gemeinfrei
Creators: name: Lasch, Alexander
Publisher: name: Zenodo
Year: 2020
Subjects: Barrierefreiheit
Audioguide

description: Dokumentation: Hörversion einer Führung durch die Albrechtsburg Meissen in leicht verständlicher Sprache – GLS (gls-dresden.de) Audioguide auf mobiler Website: ALBRECHTSBURG MEISSEN (gls-dresden.de)
Kinematics of the Local Universe XIII. 21-cm line measurements of 452 galaxies with the Nançay radiotelescope, JHK Tully-Fisher relation and preliminary maps of the peculiar velocity field
Creators: name: Theureau, Gilles
name: Hanski, Mikko
name: Coudreau, Nicole
name: Hallet, Nicole
name: Martin, Jean-Michel
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: This paper presents 452 new 21-cm neutral hydrogen line measurements carried out with the FORT receiver of the meridian transit Nançay radiotelescope (NRT) in the period April 2003 -- March 2005. This observational programme is part of a larger project aiming at collecting an exhaustive and magnitude-complete HI extragalactic catalogue for Tully-Fisher applications (the so-called KLUN project, for Kinematics of the Local Universe studies, end in 2008). The whole on-line HI archive of the NRT contains today reduced HI-profiles for ~4500 spiral galaxies of declination delta > -40° (http://klun.obs-nancay.fr). As an example of application, we use direct Tully-Fisher relation in three (JHK) bands in deriving distances to a large catalog of 3126 spiral galaxies distributed through the whole sky and sampling well the radial velocity range between 0 and 8000 km/s. Thanks to an iterative method accounting for selection bias and smoothing effects, we show as a preliminary output a detailed and original map of the velocity field in the Local Universe.
Nonmonotonic specific entropy on the transition line near the QCD critical point
Creators: name: Pradeep, Maneesha Sushama
name: Sogabe, Noriyuki
name: Stephanov, Mikhail
name: Yee, Ho-Ung
Publisher: name: arXiv
Year: 2024
Subjects: subject: Nuclear Theory (nucl-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the effect of the quantum chromodynamics (QCD) critical point on the isentropic trajectories in the QCD phase diagram. We point out that the universality of the critical equation of state and the third law of thermodynamics require the specific entropy (per baryon) along the coexistence (first-order transition) line to be nonmonotonic at least on one side of that line. Specifically, a maximum must occur. We show how the location of the maximum relative to the QCD critical point depends on the parameters of the critical equation of state commonly used in the literature. We then examine how the isentropic trajectories followed by adiabatically expanding heavy-ion collision fireballs behave near the critical point. We find that a crucial role is played by the sign of the isochoric temperature derivative of pressure at the critical point; this sign determines on which side of the coexistence curve the specific entropy must be nonmonotonic (i.e., has a maximum). We classify different scenarios of the adiabatic expansion that arise depending on the value of the discriminant parameter and the proximity of the trajectory to the critical point.
description: 22 pages, 13 figures; published version
A first-principle simulation of blast wave emergence at the photosphere of a neutron star merger
Creators: name: Lundman, Christoffer
name: Beloborodov, Andrei
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present the first ab initio simulation of a radiation-mediated shock emerging at the photosphere of a relativistic outflow. The simulation is performed using our code radshock that follows fluid dynamics coupled to time-dependent radiative transfer, calculated with the Monte-Carlo method. We use the code to examine the radiative blast wave emerging from neutron star merger GW~170817. It was previously proposed that the merger ejected a dark, relativistically expanding, homologous envelope, and then an explosion inside the envelope produced the observed gamma-ray burst GRB~170817A. Our simulation demonstrates how the shock wave generates radiation as it propagates through the envelope, approaches its photosphere, releases the radiation, and collapses, splitting into two collisionless shocks of a microscopic thickness. We find the light curve and the spectral evolution of the produced gamma-ray burst; both are similar to the observed GRB~170817A.
description: 5 pages, submitted to ApJL
Same-sign top quarks as signature of light stops
Creators: name: Kraml, S.
name: Raklev, A. R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a new method to search for a light scalar top (stop), decaying dominantly into $c\tildeχ^0_1$, at the LHC. The principal idea is to exploit the Majorana nature of the gluino, leading to same-sign top quarks in events of gluino pair production followed by gluino decays into top and stop. We demonstrate the reach of our method in terms of the gluino mass and the stop-neutralino mass difference.
description: 4 pages, 1 figure, to appear in Proceedings of SUSY06, the 14th International Conference on Supersymmetry and the Unification of Fundamental Interactions, UC Irvine, California, 12-17 June 2006
Interim Report on Communication, Dissemination and Impact of Project Activities
Creators: name: Ruškutė, Eglė
name: Balázs, Katalin
name: Schwarz, Gerald
name: Miller, David
Publisher: name: Zenodo
Year: 2019

description: This deliverable gives an overview of the communication and dissemination activities of the UNISECO consortium in the first 18 months of the project duration.
Linkage of Pfister forms over semi-global fields
Creators: name: Daans, Nicolas
Publisher: name: arXiv
Year: 2024
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11E81 (primary), 11E04, 11R58 (secondary)

description: We study linkage of $(d+1)$-fold quadratic Pfister forms over function fields in one variable over a henselian valued field of 2-cohomological dimension $d$. Specifically, we characterise this property in terms of linkage of quadratic Pfister forms over function fields over the residue field of the henselian valued field; in full generality in characteristic different from 2, and for most complete discretely valued fields in characteristic 2. As an application, we obtain a proof that $(d+2)$-fold quadratic Pfister forms over function fields in one variable over a $d$-dimensional higher local field are linked.
description: 23 pages, author accepted manuscript
Search for primes of the form $m^2+1$
Creators: name: Wolf, Marek
Publisher: name: arXiv
Year: 2008
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: The results of the computer hunt for the primes of the form $q = m^2+1$ up to $10^{20}$ are reported. The number of sign changes of the difference $π_q(x) - \frac{C_q}{2}\int_2^x{du \over \sqrt{u}\log(u)}$ and the error term for this difference is investigated. The analogs of the Brun's constant and the Skewes number are calculated. An analog of the B conjecture of Hardy--Littlewood is formulated. It is argued that there is no Chebyshev bias for primes of the form $q=m^2+1$. All encountered integrals we were able to express by the logarithmic integral.
description: The Fig.10 is added. The n=1 is not included into the definition of the logarithmic density
Magnetic fields of M dwarfs
Creators: name: Kochukhov, Oleg
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Magnetic fields play a fundamental role for interior and atmospheric properties of M dwarfs and greatly influence terrestrial planets orbiting in the habitable zones of these low-mass stars. Determination of the strength and topology of magnetic fields, both on stellar surfaces and throughout the extended stellar magnetospheres, is a key ingredient for advancing stellar and planetary science. Here modern methods of magnetic field measurements applied to M-dwarf stars are reviewed, with an emphasis on direct diagnostics based on interpretation of the Zeeman effect signatures in high-resolution intensity and polarisation spectra. Results of the mean field strength measurements derived from Zeeman broadening analyses as well as information on the global magnetic geometries inferred by applying tomographic mapping methods to spectropolarimetric observations are summarised and critically evaluated. The emerging understanding of the complex, multi-scale nature of M-dwarf magnetic fields is discussed in the context of theoretical models of hydromagnetic dynamos and stellar interior structure altered by magnetic fields.
description: 59 pages, 17 figures; Invited review article accepted for publication by The Astronomy and Astrophysics Review
Open questions and perspectives for hadron electromagnetic form factors in space-like and time-like regions
Creators: name: Tomasi-Gustafsson, E.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: An overview of recent data on electromagnetic hadron form factors is presented and discussed in terms of selected nucleon models in space-like and time-like regions. Model independent properties connecting scattering and annihilation channels are presented and give a deeper understanding of the underlying physics. Radiative corrections are discussed. The interest of polarization observables with respect to model predictions and reaction mechanism (one photon versus two photon exchange) is highlighted.
description: 10 pages 6 figures presented at XXIX Symposium on Nuclear Physics, January 3-6, 2006, Cocoyoc, Mexico
Robust, Accurate Stochastic Optimization for Variational Inference
Creators: name: Dhaka, Akash Kumar
name: Catalina, Alejandro
name: Andersen, Michael Riis
name: Magnusson, Måns
name: Huggins, Jonathan H.
name: Vehtari, Aki
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Methodology (stat.ME)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: We consider the problem of fitting variational posterior approximations using stochastic optimization methods. The performance of these approximations depends on (1) how well the variational family matches the true posterior distribution,(2) the choice of divergence, and (3) the optimization of the variational objective. We show that even in the best-case scenario when the exact posterior belongs to the assumed variational family, common stochastic optimization methods lead to poor variational approximations if the problem dimension is moderately large. We also demonstrate that these methods are not robust across diverse model types. Motivated by these findings, we develop a more robust and accurate stochastic optimization framework by viewing the underlying optimization algorithm as producing a Markov chain. Our approach is theoretically motivated and includes a diagnostic for convergence and a novel stopping rule, both of which are robust to noisy evaluations of the objective function. We show empirically that the proposed framework works well on a diverse set of models: it can automatically detect stochastic optimization failure or inaccurate variational approximation
Variational study of hard-core bosons in a 2-D optical lattice using Projected Entangled Pair States (PEPS)
Creators: name: Murg, V.
name: Verstraete, F.
name: Cirac, J. I.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We have studied the system of hard-core bosons on a 2-D optical lattice using a variational algorithm based on projected entangled-pair states (PEPS). We have investigated the ground state properties of the system as well as the responses of the system to sudden changes in the parameters. We have compared our results to mean field results based on a Gutzwiller ansatz.
description: 9 pages, 9 figures
Coincidence site modules in 3-space
Creators: name: Baake, Michael
name: Pleasants, Peter
name: Rehmann, Ulf
Publisher: name: arXiv
Year: 2006
Subjects: subject: Metric Geometry (math.MG)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 52C07, 52C23,11H06,11M41

description: The coincidence site lattice (CSL) problem and its generalization to Z-modules in Euclidean 3-space is revisited, and various results and conjectures are proved in a unified way, by using maximal orders in quaternion algebras of class number 1 over real algebraic number fields.
description: 25 pages
On two-dimensionalization of three-dimensional turbulence in shell models
Creators: name: Chakraborty, Sagar
name: Jensen, Mogens H.
name: Sarkar, Amartya
Publisher: name: arXiv
Year: 2008
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Applying a modified version of the Gledzer-Ohkitani-Yamada (GOY) shell model, the signatures of so-called two-dimensionalization effect of three-dimensional incompressible, homogeneous, isotropic fully developed unforced turbulence have been studied and reproduced. Within the framework of shell models we have obtained the following results: (i) progressive steepening of the energy spectrum with increased strength of the rotation, and, (ii) depletion in the energy flux of the forward forward cascade, sometimes leading to an inverse cascade. The presence of extended self-similarity and self-similar PDFs for longitudinal velocity differences are also presented for the rotating 3D turbulence case.
Promoting human flourishing through international education: Pursuing a world where all can thrive
Creators: name: Hagues, Rachel
Publisher: name: Zenodo
Year: 2024

description: International education and exposure to other cultures is one way to further a desire within our students to work towards a world where all people have the opportunity to flourish as human beings. Herein, I use an ecological approach (Bronfenbrenner, 1994) to map out human flourishing at various systemic levels with a focus on the macro level. Human flourishing cannot happen if a person is merely surviving; a person must be thriving. All ecological levels – from the micro to the macro – must support or provide opportunity for thriving across physical, spiritual, emotional, and psychological domains. I argue that the role of educators – particularly those in higher education – is to help create a space where our students are exposed to different cultures, ways of living, and even injustice, so that in turn they become passionate about ensuring that all people can flourish.
Experimental validation of differential evolution indicators for ultrasonic imaging in unknown backgrounds
Creators: name: Pourahmadian, Fatemeh
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: The differential evolution indicators, recently introduced for imaging mechanical evolution in highly scattering solids, is examined in a laboratory setting with the focus on spatiotemporal tracking of an advancing damage zone in an elastic specimen. To this end, a prismatic slab of charcoal granite is quasi-statically fractured in the three-point-bending (3PB) configuration, while ultrasonic shear waves are periodically generated in the sample at certain time steps $t_κ$, $κ= \circ, 1, 2, ..., 4$. The interaction of probing waves with the propagating damage give rise to transient velocity responses measured on the plate's boundary by a 3D scanning laser Doppler vibrometer. Thus obtained sensory data are then carefully processed to retrieve the associated spectra of scattered displacement fields $v^κ$ at every $t_κ$. On deploying consecutive pairs of multi-frequency data $(v^κ, v^{κ+1})$, the differential indicators are computed exposing the progress of 3PB-induced damage in the specimen. Verified with in-situ observations, each indicator map successfully reconstructs (a) the support of newborn fractures, and (b) the loci of discontinuities in the process zone that undergo interfacial evolution in the designated timeframe $[t_κ\,\,\, t_{κ+1}]$. Further, it is shown that the evolution indicators help better understand the damage mechanism e.g., by shining light on the fragmented nature of induced cracks and their coalescence. For completeness, data inversion via reduced and partial-aperture data is investigated, including the one-sided reconstruction.
Juvenile sex offender treatment outcome and conduct disorder diagnosis
Creators: name: Pond, Michael James
Publisher: name: University of British Columbia
Year: 2009

description: Using a descriptive design, this study investigated the differences in treatment outcomes between juvenile sex offenders who were diagnosed with Conduct Disorder (according to DSM-III-R (APA, 1987) classification system criteria) and those with a non-conduct disorder diagnosis. The clinical records of 100 juvenile males convicted with a sexual offense who were court ordered for a psychiatric/psychological/social assessment and treatment at Youth Court Services/Out-patient Clinic between January 1, 1989 and January 1, 1993 were studied. The results indicated that the youths diagnosed with Conduct Disorder displayed a significantly higher probability for unsuccessful treatment outcome as compared to those youths with a non-conduct disorder diagnosis. The findings suggest the juvenile sex offender who is diagnosed as conduct disordered may be a subtype who is at higher risk of unsuccessfully completing treatment, and may require a more specialized form of intervention. Furthermore, the findings suggest that there are limitations to the DSM-III-R classification system with this population.
A very misinclined magnetic field: The case of the T Tauri star DK Tau
Creators: name: Nelissen, M.
name: McGinnis, P.
name: Rangaswamy, D.
name: Folsom, C.
name: Ray, T.
Publisher: name: Zenodo
Year: 2021
Subjects: Young stars
stars: variables: T Tauri
stars: individual: DK Tau
techniques: spectropolarimetry
stars: magnetic field
accretion

description: We analyzed nine circularly polarized spectra of DK Tau (a classical T Tauri star), spanning over one rotation cycle and collected in 2010 with the spectropolarimeter ESPaDOnS (at the CFHT). We present a preliminary study of DK Tau's large-scale magnetic field configuration and the distribution of relative brightness across its surface, as well as the variability of its veiling (a signature of accretion). We find that the magnetic dipole is nearly perpendicular to the stellar rotation axis. We also find an anti-correlation of the veiling and the average magnetic field in the line-of-sight, Blos, showing the connection between the accretion and the magnetic field.
description: {"references": ["Donati, J. -F. et al. (1997). Spectropolarimetric observations of active stars.", "Donati, J. -F. et al. (1997). Zeeman-Doppler imaging of active stars. V. Sensitivity of maximum entropy magnetic maps to field orientation.", "Folsom, C. P. et al. (2018). The evolution of surface magnetic fields in young solar-type stars II: the early main sequence (250-650 Myr).", "Manara, C. F. et al. (2019). Observational constraints on dust disk sizes in tidally truncated protoplanetary disks in multiple systems in the Taurus region."]}
Time-resolved study of resonant interatomic Coulombic decay in helium nanodroplets
Creators: name: LaForge, A. C.
name: Michiels, R.
name: Ovcharenko, Y.
name: Ngai, A.
name: Escartin, J. M.
name: Berrah, N.
name: Callegari, C.
name: Clark, A.
name: Coreno, M.
name: Cucini, R.
name: Di Fraia, M.
name: Drabbels, M.
name: Fasshauer, E.
name: Finetti, P.
name: Giannessi, L.
name: Grazioli, C.
name: Iablonskyi, D.
name: Langbehn, B.
name: Nishiyama, T.
name: Oliver, V.
name: Piseri, P.
name: Plekan, O.
name: Prince, K. C.
name: Rupp, D.
name: Stranges, S.
name: Ueda, K.
name: Sisourat, N.
name: Eloranta, J.
name: Pi, M.
name: Barranco, M.
name: Stienkemeier, F.
name: Moeller, T.
name: Mudrich, M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: FOS: Physical sciences

description: When weakly-bound complexes are multiply excited by intense electromagnetic radiation, energy can be exchanged between neighboring atoms through a type of resonant interatomic Coulombic decay (ICD). This decay mechanism due to multiple excitations has been predicted to be relatively slow, typically lasting tens to hundreds of picoseconds. Here, we directly measure the ICD timescale in resonantly excited helium droplets using a high resolution, tunable, extreme ultraviolet free electron laser. Over an extensive range of droplet sizes and laser intensities, we discover the decay to be surprisingly fast, with decay times as fast as 400 femtoseconds, and to only present a weak dependence on the density of the excited states. Using a combination of time dependent density functional theory and ab initio quantum chemistry calculations, we elucidate the mechanisms of this ultrafast decay process where pairs of excited helium atoms in one droplet strongly attract each other and form merging void bubbles which drastically accelerates ICD.
Toward Scalable Docker-Based Emulations of Blockchain Networks for Research and Development
Creators: name: Pennino, Diego
name: Pizzonia, Maurizio
Publisher: name: arXiv
Year: 2024
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Performance (cs.PF)
subject: FOS: Computer and information sciences

description: Blockchain, like any other complex technology, needs a strong testing methodology to support its evolution in both research and development contexts. Setting up meaningful tests for permissionless blockchain technology is a notoriously complex task for several reasons: software is complex, large number of nodes are involved, network is non ideal, etc. Developers usually adopt small virtual laboratories or costly real devnets, based on real software. Researchers usually prefer simulations of a large number of nodes, based on simplified models. In this paper, we aim to obtain the advantages of both approaches, i.e., performing large, realistic, inexpensive, and flexible experiments, using real blockchain software within a virtual environment. To do that, we tackle the challenge of running large blockchain networks in a single physical machine, leveraging Linux and Docker. We analyze a number of problems that arise when large blockchain networks are emulated and we provide technical solutions for all of them. Finally, we describe two experiences of emulating fairly large blockchain networks on a single machine, adopting both research oriented and production oriented software, and involving up to more than 3000 containers.
Distributed cladding mode fiber-optic sensor
Creators: name: Bashan, Gil
name: London, Yosef
name: Diamandi, Hilel Hagai
name: Zadok, Avi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The analysis of substances outside the cladding has challenged the optical fiber sensors community for decades. A common solution relies on the propagation of light in cladding modes. However, the coupling of light to/from these modes is typically based on permanent gratings in specific locations, which restrict the sensors to point measurements only. In this work, we present dynamic, random-access coupling of light between core and cladding modes of standard fibers, in arbitrarily located short sections. Coupling is based on the stimulation of Brillouin dynamic gratings by two coded pump waves and intermodal scattering of a third optical probe wave. All waves are launched and collected inthe core mode. No permanent gratings are inscribed. Distributed sensing of surrounding media is demonstrated with 2 m range and 8 cm resolution. Measurements distinguish between water and ethanol outside the fiber. The measurement accuracty of the local index outside the cladding is 0.004 - 0.0004 refractive index units.
Lifetime Difference and CP-Violating Phase in the B_s^0 System
Creators: name: Abazov, V. M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: From an analysis of the decay Bs -> J/psi phi we obtain the width difference between the light and heavy mass eigenstates, and the CP-violating phase.
description: Submited to PRL. FERMILAB-PUB 07-007-E 7 pages, 6 figures
Coherent exciton transport in dendrimers and continuous-time quantum walks
Creators: name: Muelken, Oliver
name: Bierbaum, Veronika
name: Blumen, Alexander
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We model coherent exciton transport in dendrimers by continuous-time quantum walks (CTQWs). For dendrimers up to the second generation the coherent transport shows perfect recurrences, when the initial excitation starts at the central node. For larger dendrimers, the recurrence ceases to be perfect, a fact which resembles results for discrete quantum carpets. Moreover, depending on the initial excitation site we find that the coherent transport to certain nodes of the dendrimer has a very low probability. When the initial excitation starts from the central node, the problem can be mapped onto a line which simplifies the computational effort. Furthermore, the long time average of the quantum mechanical transition probabilities between pairs of nodes show characteristic patterns and allow to classify the nodes into clusters with identical limiting probabilities. For the (space) average of the quantum mechanical probability to be still or again at the initial site, we obtain, based on the Cauchy-Schwarz inequality, a simple lower bound which depends only on the eigenvalue spectrum of the Hamiltonian.
description: 8 pages, 8 figures, accepted for publication in J. Chem. Phys
MISTIQS: An open-source software for performing quantum dynamics simulations on quantum computers
Creators: name: Powers, Connor
name: Bassman, Lindsay
name: Linker, Thomas
name: Nomura, Ken-ichi
name: Gulania, Sahil
name: Kalia, Rajiv K.
name: Nakano, Aiichiro
name: Vashishta, Priya
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present MISTIQS, a Multiplatform Software for Time-dependent Quantum Simulations. MISTIQS delivers end-to-end functionality for simulating the quantum many-body dynamics of systems governed by time-dependent Heisenberg Hamiltonians across multiple quantum computing platforms. It provides high-level programming functionality for generating intermediate representations of quantum circuits which can be translated into a variety of industry-standard representations. Furthermore, it offers a selection of circuit compilation and optimization methods and facilitates execution of the quantum circuits on currently available cloud-based quantum computing backends. MISTIQS serves as an accessible and highly flexible research and education platform, allowing a broader community of scientists and students to perform quantum many-body dynamics simulations on current quantum computers.
description: 12 pages, 3 figures
Additional file 1 of Information provision and retrieval by registered salespersons from consumers during over-the-counter drug sales – a questionnaire survey
Creators: name: Kizaki, Hayato
name: Mochizuki, Misato
name: Yoshida, Yutaka
name: Ishikawa, Kaori
name: Ohishi, Miya
name: Satoh, Hiroki
name: Sawada, Yasufumi
name: Hori, Satoko
Publisher: name: figshare
Year: 2021
Subjects: subject: Pharmacology
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: ESM 1.
Nuclear Broadening of Transverse Momentum in Drell-Yan Reactions
Creators: name: Johnson, M. B.
name: Kopeliovich, B. Z.
name: Leitch, M. J.
name: McGaughey, P. L.
name: Moss, J. M.
name: Potashnikova, I. K.
name: Schmidt, Ivan
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Data for Drell-Yan (DY) processes on nuclei are currently available from fixed target experiments up to the highest energy of $\sqrt{s}=40\GeV$. The bulk of the data cover the range of short coherence length, where the amplitudes of the DY reaction on different nucleons do not interfere. In this regime, DY processes provide direct information about broadening of the transverse momentum of the projectile parton experiencing initial-state multiple interactions. We revise a previous analysis of data from the E772 experiment and perform a new analysis of broadening including data from the E866 experiment at Fermilab. We conclude that the observed broadening is about twice as large as the one found previously. This helps to settle controversies that arose from a comparison of the original determination of broadening with data from other experiments and reactions.
description: 8 pages, 6 figures, fig.4 is added. The version to appear in Phys. Rev. C
สถานการณ์โรคอาหารเป็นพิษ ปี พ.ศ. 2560
Creators: name: ชนัดดา ตั้งวงศ์จุลเนียม
Publisher: name: กองนวัตกรรมและวิจัย กรมควบคุมโรค
Year: 2561
Subjects: โรคอาหารเป็นพิษ
เฝ้าระวังโรค 5 มิติ

description: วารสารควบคุมโรค, 44, 3, 315-324
Additional file 1 of Differential time allocation of foraging workers in the subterranean termite
Creators: name: Lee, Sang-Bin
name: Chouvenc, Thomas
name: Su, Nan-Yao
Publisher: name: figshare
Year: 2021
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases

description: Additional file 1: Table 1. Individual tracking data of marked foraging workers in C. formosanus. In total, 13 termites per colony were measured and 3 different colonies were used (Colony 1: 1–13; colony 2: 14–26; colony 3: 27–39). Average and total time spent were calculated by averaging and summation all incidences respectively.
ระบาดวิทยาโรคเรื้อนประเทศไทย หลังกำจัดโรคเรื้อนสำเร็จได้ไม่เป็นปัญหาสาธารณสุข ปี พ.ศ. 2537-2559
Creators: name: ชัยรัตน์ เตชะไตรศักดิ์
Publisher: name: กองนวัตกรรมและวิจัย กรมควบคุมโรค
Year: 2561
Subjects: ระบาดวิทยาโรคเรื้อน
กำจัดโรคเรื้อนสำเร็จได้ไม่เป็นปัญหาสาธารณสุข

description: วารสารควบคุมโรค, 44, 3, 325-336
Clock and Trigger Synchronization between Several Chassis of Digital Data Acquisition Modules
Creators: name: Hennig, W.
name: Tan, H.
name: Walby, M.
name: Grudberg, P.
name: Fallu-Labruyere, A.
name: Warburton, W. K.
name: Vaman, C.
name: Starosta, K.
name: Miller, D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: In applications with segmented high purity Ge detectors or other detector arrays with tens or hundreds of channels, where the high development cost and limited flexibility of application specific integrated circuits outweigh their benefits of low power and small size, the readout electronics typically consist of multi-channel data acquisition modules in a common chassis for power, clock and trigger distribution, and data readout. As arrays become larger and reach several hundred channels, the readout electronics have to be divided over several chassis, but still must maintain precise synchronization of clocks and trigger signals across all channels. This division becomes necessary not only because of limits given by the instrumentation standards on module size and chassis slot numbers, but also because data readout times increase when more modules share the same data bus and because power requirements approach the limits of readily available power supplies. In this paper, we present a method for distributing clocks and triggers between 4 PXI chassis containing DGF Pixie-16 modules with up to 226 acquisition channels per chassis in a data acquisition system intended to instrument the over 600 channels of the SeGA detector array at the National Superconducting Cyclotron Laboratory. Our solution is designed to achieve synchronous acquisition of detector waveforms from all channels with a jitter of less then 1 ns, and can be extended to a larger number of chassis if desired.
description: CAARI 2006
Bound-state confinement after trap-expansion dynamics in integrable systems
Creators: name: Biagetti, Leonardo
name: Alba, Vincenzo
Publisher: name: arXiv
Year: 2024
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Integrable systems possess stable families of quasiparticles, which are composite objects (bound states) of elementary excitations. Motivated by recent quantum computer experiments, we investigate bound-state transport in the spin-$1/2$ anisotropic Heisenberg chain ($XXZ$ chain). Specifically, we consider the sudden vacuum expansion of a finite region $A$ prepared in a non-equilibrium state. In the hydrodynamic regime, if interactions are strong enough, bound states remain confined in the initial region. Bound-state confinement persists until the density of unbound excitations remains finite in the bulk of $A$. Since region $A$ is finite, at asymptotically long times bound states are "liberated" after the "evaporation" of all the unbound excitations. Fingerprints of confinement are visible in the space-time profiles of local spin-projection operators. To be specific, here we focus on the expansion of the $p$-Néel states, which are obtained by repetition of a unit cell with $p$ up spins followed by $p$ down spins. Upon increasing $p$, the bound-state content is enhanced. In the limit $p\to\infty$ one obtains the domain-wall initial state. We show that for $p<4$, only bound states with $n>p$ are confined at large chain anisotropy. For $p\gtrsim 4$, also bound states with $n=p$ are confined, consistent with the absence of transport in the limit $p\to\infty$. The scenario of bound-state confinement leads to a hierarchy of timescales at which bound states of different sizes are liberated, which is also reflected in the dynamics of the von Neumann entropy.
description: 29 pages, 11 figures
Fixed point properties in the space of marked groups
Creators: name: Stalder, Yves
Publisher: name: arXiv
Year: 2008
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20F99, 20F05, 20E08

description: We explain, following Gromov, how to produce uniform isometric actions of groups starting from isometric actions without fixed point, using common ultralimits techniques. This gives in particular a simple proof of a result by Shalom: Kazhdan's property (T) defines an open subset in the space of marked finitely generated groups.
description: The only modification from previous version is section numbering, in order to agree with the published version
Optimising Optimal Image Subtraction
Creators: name: Israel, Holger
name: Hessman, Frederic V.
name: Schuh, Sonja
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Difference imaging is a technique for obtaining precise relative photometry of variable sources in crowded stellar fields and, as such, constitutes a crucial part of the data reduction pipeline in surveys for microlensing events or transiting extrasolar planets. The Optimal Image Subtraction (OIS) algorithm permits the accurate differencing of images by determining convolution kernels which, when applied to reference images of particularly good quality, provide excellent matches to the point-spread functions (PSF) in other images of the time series to be analysed. The convolution kernels are built as linear combinations of a set of basis functions, conventionally bivariate Gaussians modulated by polynomials. The kernel parameters must be supplied by the user and should ideally be matched to the PSF, pixel-sampling, and S/N of the data to be analysed. We have studied the outcome of the reduction as a function of the kernel parameters using our implementation of OIS within the TRIPP package. From the analysis of noise-free PSF simulations as well as test images from the ISIS OIS package, we derive qualitative and quantitative relations between the kernel parameters and the success of the subtraction as a function of the PSF sizes and sampling in reference and data images and compare the results to those of implementations in the literature. On this basis, we provide recommended parameters for data sets with different S/N and sampling.
description: 10 pages, 6 figures. Accepted for publication in Astronomische Nachrichten / Astronomical Notes
(SC)RMI: A (S)emi-(C)lassical (R)elativistic (M)otion (I)integrator, to model the orbits of space probes around the Earth and other planets
Creators: name: Pireaux, S.
name: Barriot, J-P.
name: Rosenblatt, P.
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Today, the motion of spacecrafts is still described according to the classical Newtonian equations plus the so-called "relativistic corrections", computed with the required precision using the Post-(Post-)Newtonian formalism. The current approach, with the increase of tracking precision (Ka-Band Doppler, interplanetary lasers) and clock stabilities (atomic fountains) is reaching its limits in terms of complexity, and is furthermore error prone. In the appropriate framework of General Relativity, we study a method to numerically integrate the native relativistic equations of motion for a weak gravitational field, also taking into account small non-gravitational forces. The latter are treated as perturbations, in the sense that we assume that both the local structure of space-time is not modified by these forces, and that the unperturbed satellite motion follows the geodesics of the local space-time. The use of a symplectic integrator to compute the unperturbed geodesic motion insures the constancy of the norm of the proper velocity quadrivector. We further show how this general relativistic framework relates to the classical one.
description: 13 pages, 5 eps figures, 1 table, accepted in Acta Astronautica, presented at the International Astronautical Congress, Vancouver 2004, reference IAC-04-A.7.08
การสำรวจการจัดการสิ่งแวดล้อมของช่องทางเข้าออกประเทศพรมแดนทางบก ในประเทศไทย
Creators: name: มนจิรา ถมังรักษ์สัตว์
Publisher: name: กองนวัตกรรมและวิจัย กรมควบคุมโรค
Year: 2561
Subjects: การสำรวจ
การจัดการสิ่งแวดล้อม
ช่องทางเข้าออกประเทศ
พรมแดนทางบก

description: วารสารควบคุมโรค, 44, 4, 337-348
Semiclassical bounce with strong minimal assumptions
Creators: name: Silva, Wagno Cesar e
name: Shapiro, Ilya L.
Publisher: name: arXiv
Year: 2024
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences
subject: 81T20, 83C47, 83F05

description: We explore the possibility of avoiding cosmological singularity with a bounce solution in the early Universe. The main finding is that simple and well-known semiclassical correction, which describes the mixing of radiation and gravity in the effective action, may provide an analytic solution with a bounce. The solution requires a positive beta function for the total radiation term and the contraction of the Universe at the initial instant. The numerical estimate shows that the bounce may occur in an acceptable range of energies, but only under strong assumptions about the particle physics beyond the Standard Model.
description: 15 pages, 3 figures. Several detailed explanations, discussions and references added to improve presentation, and change in the title. Fits the published version
Detailed instantaneous ionization rate of H$_2^+$ in intense laser field
Creators: name: Vafaee, Mohsen
name: Sabzyan, Hassan
name: Vafaee, Zahra
name: Katanforoush, Ali
Publisher: name: arXiv
Year: 2006
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Component instantaneous ionization rate (IIR) is introduced and the approach of its calculation is formulated. The component IIR's and the overall (time-averaged) component ionization rates are calculated for H$_2^+$ at different values of inter-nuclear distance in a linearly polarized laser field with $1.0 \times10^{14}$W cm$^{-2}$ intensity and $λ\sim 1064 $nm wavelength by direct numerical solution of the fixed-nuclei full dimensional time-dependent Schr ödinger equation. The exact overall component ionization rates calculated by time-averaging of the component IIR are compared with those calculated approximately via the virtual detector method (VD). Details of the time dependent behavior of the outgoing and incoming electron wavepackets of the H$_2^+$ system in intense laser field at sub-femtosecond time scale are studied based on the calculated component IIR. It is shown clearly that the positive (outgoing electron wavepacket) signals of the IIR and its z component are strong and sharp but the negative (returning electron wavepacket) signals of the IIR are smooth and weak. The structure of the $ρ$ component of the IIR has smooth structure. Relation between the R-dependent ionization rate and duration of the ramp of the laser pulse is studied and it is explicitly shown that for internuclear distance R<5.6, when the laser pulse is turned on without a ramp, the first peak of R-dependent ionization rates moves towards the peak of the lower time dependent Floquet quasi-energy state (QES).
description: 28 pages, 7 figures
Isolation of a cDNA for Drosophila melanogaster manganese superoxide dismutase
Creators: name: Carmichael, Stuart
Publisher: name: University of British Columbia
Year: 2009

description: Numerous phenomena in aging animals are thought to result from chemical damage by activated oxygen species. One of the prime candidates for a causative agent in aging is superoxide, a free radical species resulting from single electron transfer to molecular oxygen. Superoxide is produced in normal metabolism by occasional adventitious oxidation of electron carriers higher up in the electron-transport chain (ETC) by oxygen, and by the activities of several oxidative enzymes, such as xanthine oxidase. A cDNA for Drosophila manganese-containing matrix localized superoxide dismutase was cloned and sequenced. To study the effects on Drosophila life span of reducing mitochondrial matrix superoxide levels, protein over expression studies by introduction of extra copies of the gene in a genetically defined background population were planed. A partial gene for a putative manganese superoxide dismutase from an unknown organism was also isolated. Manganese and iron superoxide dismutase protein homology groups and sequence conservation are also explored.
France makes history: the Exposition des Primitifs Français and the Third Republic
Creators: name: Steven, Moira Frances
Publisher: name: University of British Columbia
Year: 2009

description: The Exposition des Primitifs frangais opened in the Pavilion de Marsan at the Louvre in 1904, with over 700 paintings, drawings, enamels, sculptures and manuscripts assembled there from French and international collections, both private and public. The exhibition, organized by the most prominent curators, academics and administrators in the Beaux- Arts community, attempted to rewrite French art historical canon by arguing that a heretofore overlooked School of French Primitive art, particularly paintings, had spanned the gap between the acknowledged highpoints of High Gothic sculptural and architectural production and the emergence of the so-called Golden Age of French art in the sixteenth and seventeenth centuries. Organized partly in response to claims of Flemish artistic supremacy at the 1902 Exposition des Primitifs flamands at Bruges, the French primitifs were positioned in their 'genius' as parallel to and contemporary with Flemish and Italian early renaissance developments and as a national school equally deserving of academic, aesthetic and historical consideration. This exhibition, however, must be considered in the context of shifting discourses and contemporary events. The exhibition's Catalogue Definitif provides a field for diverse readings of these events and strategies and forms a central part of the analysis and argument. Through an examination of the language choices and focus of the Catalogue's rhetoric, as well as the structure of its argument, this thesis links the exhibition's claims to the contemporary political environment, specifically around Republican issues of a national identity defined in terms of language and culture, as well as issues of immigration and perceived threats to national integrity; Republican attempts to reestablish a distinct political position between the emerging Left and Right; and a reappropriation of the 'primitif from competing national claims and emerging avantgardist definitions.