cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Role of Bound States in Time-Dependent Quantum Transport
Creators: name: Khosravi, E.
name: Kurth, S.
name: Stefanucci, G.
name: Gross, E. K. U.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Charge transport through a nanoscale junction coupled to two macroscopic electrodes is investigated for the situation when bound states are present. We provide numerical evidence that bound states give rise to persistent, non-decaying current oscillations in the junction. We also show that the amplitude of these oscillations can exhibit a strong dependence on the history of the applied potential as well as on the initial equilibrium configuration. Our simulations allow for a quantitative investigation of several transient features. We also discuss the existence of different time-scales and address their microscopic origin.
description: 10 pages, 8 figures
From the lineshape of the $X(3872)$ to its structure
Creators: name: Esposito, Angelo
name: Maiani, Luciano
name: Pilloni, Alessandro
name: Polosa, Antonio D.
name: Riquer, Veronica
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: From a study of the lineshape of the $X(3872)$, the LHCb collaboration measures a sizeable negative effective range. This cannot be reconciled with a shallow $D\bar{D}^*$ bound state hypothesis. Based on Weinberg's compositeness criterion, together with a theorem by Smorodinsky, it follows that the $X$ has to have a compact hidden charm structure, most likely a tetraquark, interacting with unbound $D\bar{D}^*$ pairs via short-distance color forces. This conclusion is strengthened by the general pattern recently emerging for exotic mesons.
description: 6 pages. Updated version including the evaluation of the error on the effective range. Discussion and conclusions unchanged. To appear as a Letter in Physical Review D
The Masses of Nuclear Black Holes in Luminous Elliptical Galaxies and Implications for the Space Density of the Most Massive Black Holes
Creators: name: Lauer, Tod R.
name: Faber, S. M.
name: Richstone, Douglas
name: Gebhardt, Karl
name: Tremaine, Scott
name: Postman, Marc
name: Dressler, Alan
name: Aller, M. C.
name: Filippenko, Alexei V.
name: Green, Richard
name: Ho, Luis C.
name: Kormendy, John
name: Magorrian, John
name: Pinkney, Jason
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Black hole masses predicted from the Mbh-sigma relationship conflict with those predicted from the Mbh-L relationship for the most luminous galaxies, such as brightest cluster galaxies (BCGs). This is because stellar velocity dispersion, sigma, increases only weakly with L for BCGs and other giant ellipticals. The Mbh-L relationship predicts that the most luminous BCGs may have Mbh approaching 10^{10}M_sol, while the M-sigma relationship always predicts Mbh<3X10^9M_sol. We argue that the Mbh-L relationship is a plausible or even preferred description for BCGs and other galaxies of similar luminosity. If cores in central stellar density are formed by binary BHs, then the inner-core cusp radius, r_gamma, may be an independent witness of Mbh. Using structural parameters derived from a large sample of early-type galaxies observed by HST, we argue that L is superior to sigma as an indicator of r_gamma in luminous galaxies. The observed r_gamma-Mbh relationship for 11 core galaxies with measured Mbh appears to be consistent with the Mbh-L relationship for BCGs. BCGs have large cores appropriate for their large luminosities that may be difficult to generate with the modest BH masses inferred from the Mbh-sigma relationship. Mbh~L may be expected to hold for BCGs, if they were formed in dissipationless mergers, which should preserve ratio of BH to stellar mass. This picture appears to be consistent with the slow increase in sigma with L and the more rapid increase in effective radii with L seen in BCGs. If BCGs have large BHs commensurate with their luminosities, then the local BH mass function for Mbh>3X10^9M_sol may be nearly an order of magnitude richer than that inferred from the Mbh-sigma relationship. The volume density of QSOs at earlier epochs may favor the predictions from the Mbh-L relationship.
description: 62 pages, 18 figures, submitted to the Astrophysical Journal; revised after initial review
Identifying novel targets to treat cognitive impairment in cancer survivors
Creators: name: CHUNG, NI-CHUN
Publisher: name: Monash University
Year: 2021
Subjects: Behavioral Neuroscience

description: This thesis investigated the role of cancer and treatments including surgery and chemotherapy on cancer-related cognitive impairment. Using mouse models of breast cancer and behavioural evaluation of memory, this thesis found that cancer-free ‘survivor’ mice show sustained cognitive impairment and neuroinflammation. The findings demonstrate a cumulative and long-lasting impact of multiple cancer-related events on the brain.
Scheduling control for queueing systems with many servers: asymptotic optimality in heavy traffic
Creators: name: Atar, Rami
Publisher: name: arXiv
Year: 2006
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60K25, 68M20, 90B22, 90B36, 60F05, 49L20 (Primary)

description: A multiclass queueing system is considered, with heterogeneous service stations, each consisting of many servers with identical capabilities. An optimal control problem is formulated, where the control corresponds to scheduling and routing, and the cost is a cumulative discounted functional of the system's state. We examine two versions of the problem: ``nonpreemptive,'' where service is uninterruptible, and ``preemptive,'' where service to a customer can be interrupted and then resumed, possibly at a different station. We study the problem in the asymptotic heavy traffic regime proposed by Halfin and Whitt, in which the arrival rates and the number of servers at each station grow without bound. The two versions of the problem are not, in general, asymptotically equivalent in this regime, with the preemptive version showing an asymptotic behavior that is, in a sense, much simpler. Under appropriate assumptions on the structure of the system we show: (i) The value function for the preemptive problem converges to $V$, the value of a related diffusion control problem. (ii) The two versions of the problem are asymptotically equivalent, and in particular nonpreemptive policies can be constructed that asymptotically achieve the value $V$. The construction of these policies is based on a Hamilton--Jacobi--Bellman equation associated with $V$.
description: Published at http://dx.doi.org/10.1214/105051605000000601 in the Annals of Applied Probability (http://www.imstat.org/aap/) by the Institute of Mathematical Statistics (http://www.imstat.org)
$b$-minimality
Creators: name: Cluckers, R.
name: Loeser, F.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Logic (math.LO)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 03C64, 11S80 03C10, 12J10, 03C50 (Primary) 03C64, 03C65, 03C98, 11U09, 12L12, 14A99, 28E15, 12J25, 12J12 (Secondary)

description: We introduce a new notion of tame geometry for structures admitting an abstract notion of balls. The notion is named b-minimality and is based on definable families of points and balls. We develop a dimension theory and prove a cell decomposition theorem for b-minimal structures. We show that b-minimality applies to the theory of Henselian valued fields of characteristic zero, generalizing work by Denef - Pas. Structures which are o-minimal, v-minimal, or p-minimal and which satisfy some slight extra conditions are also b-minimal, but b-minimality leaves more room for nontrivial expansions. The b-minimal setting is intended to be a natural framework for the construction of Euler characteristics and motivic or p-adic integrals. The b-minimal cell decomposition is a generalization of concepts of P. J. Cohen, J. Denef, and the link between cell decomposition and integration was first made by Denef.
description: 32 pages
Retrieval of interatomic separations of molecules from laser-induced high-order harmonic spectra
Creators: name: Le, Van-Hoang
name: Nguyen, Ngoc-Ty
name: Jin, C.
name: Le, Anh-Thu
name: Lin, C. D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We illustrate an iterative method for retrieving the internuclear separations of N$_2$, O$_2$ and CO$_2$ molecules using the high-order harmonics generated from these molecules by intense infrared laser pulses. We show that accurate results can be retrieved with a small set of harmonics and with one or few alignment angles of the molecules. For linear molecules the internuclear separations can also be retrieved from harmonics generated using isotropically distributed molecules. By extracting the transition dipole moment from the high-order harmonic spectra, we further demonstrated that it is preferable to retrieve the interatomic separation iteratively by fitting the extracted dipole moment. Our results show that time-resolved chemical imaging of molecules using infrared laser pulses with femtosecond temporal resolutions is possible.
description: 14 pages, 9 figures
Lattice dynamics in the double-helix antiferromagnet FeP
Creators: name: Sukhanov, A. S.
name: Nikitin, S. E.
name: Pavlovskii, M. S.
name: Sterling, T. C.
name: Andryushin, N. D.
name: Cameron, A. S.
name: Tymoshenko, Y. V.
name: Walker, H. C.
name: Morozov, I. V.
name: Chernyavskii, I. O.
name: Aswartham, S.
name: Reznik, D.
name: Inosov, D. S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present a comprehensive investigation of lattice dynamics in the double-helix antiferromagnet FeP by means of high-resolution time-of-flight neutron spectroscopy and ab-initio calculations. Phonons can hybridize with the magnetic excitations in noncollinear magnets to significantly influence their properties. We observed a rich spectrum of phonon excitations, which extends up to $\sim$50 meV. We performed detailed analysis of the observed and calculated spectra for all high-symmetry points and high-symmetry directions of the Brillouin zone. We show that the DFT calculations quantitatively capture the essential features of the observed phonons, including both dispersions and scattering intensities. By making use of the detailed intensity comparison between the theory and the data, we were able to identify displacement vectors for the majority of the observed modes. The overall excellent agreement between the DFT predictions and the experimental results breaks down for the lowest mode at the $Y$-point, whose energy is lower than calculated by $\sim$13%. The present study provides vital information on the lattice dynamics in FeP and demonstrates applicability of the DFT to novel pressure-induced phenomena in related materials, such as MnP and CrAs.
description: 12 pages, 10 figures
Looking for lithics: a fieldwalking survey in the Bonsall area
Creators: name: Ash, Paul
name: Jeffery, Tim
name: McInally, Pam
name: Palmer, Liz
name: Waller, Martin
name: Ward, Peter
name: Barnatt, John
Publisher: name: Archaeology Data Service
Year: 2021

description: The Derbyshire Archaeological Journal, 140, 11-65
Spitzer IRS Spectra of Optically Faint Infrared Sources with Weak Spectral Features
Creators: name: Weedman, D. W.
name: Soifer, B. T.
name: Hao, Lei
name: Higdon, J. L.
name: Higdon, S. J. U.
name: Houck, J. R.
name: LeFloc'h, E.
name: Brown, M. J. I.
name: Dey, A.
name: Jannuzi, B. T.
name: Rieke, M.
name: Desai, V.
name: Bian, C.
name: Thompson, D.
name: Armus, L.
name: Teplitz, H.
name: Eisenhardt, P.
name: Willner, S. P.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Spectra have been obtained with the low-resolution modules of the Infrared Spectrograph (IRS) on the Spitzer Space Telescope (Spitzer) for 58 sources having f$_ν$(24 micron) > 0.75 mJy. Sources were chosen from a survey of 8.2 deg$^{2}$ within the NOAO Deep Wide-Field Survey region in Bootes (NDWFS) using the Multiband Imaging Photometer (MIPS) on the Spitzer Space Telescope. Most sources are optically very faint (I > 24mag). Redshifts have previously been determined for 34 sources, based primarily on the presence of a deep 9.7 micron silicate absorption feature, with a median z of 2.2. Spectra are presented for the remaining 24 sources for which we were previously unable to determine a confident redshift because the IRS spectra show no strong features. Optical photometry from the NDWFS and infrared photometry with MIPS and the Infrared Array Camera on the Spitzer Space Telescope (IRAC) are given, with K photometry from the Keck I telescope for some objects. The sources without strong spectral features have overall spectral energy distributions (SEDs) and distributions among optical and infrared fluxes which are similar to those for the sources with strong absorption features. Nine of the 24 sources are found to have feasible redshift determinations based on fits of a weak silicate absorption feature. Results confirm that the "1 mJy" population of 24 micron Spitzer sources which are optically faint is dominated by dusty sources with spectroscopic indicators of an obscured AGN rather than a starburst. There remain 14 of the 58 sources observed in Bootes for which no redshift could be estimated, and 5 of these sources are invisible at all optical wavelengths.
description: Accepted by ApJ
Velocity Distributions from Nonextensive Thermodynamics
Creators: name: Barnes, Eric I.
name: Williams, Liliya L. R.
name: Babul, Arif
name: Dalcanton, Julianne J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: There is no accepted mechanism that explains the equilibrium structures that form in collisionless cosmological N-body simulations. Recent work has identified nonextensive thermodynamics as an innovative approach to the problem. The distribution function that results from adopting this framework has the same form as for polytropes, but the polytropic index is now related to the degree of nonextensiveness. In particular, the nonextensive approach can mimic the equilibrium structure of dark matter density profiles found in simulations. We extend the investigation of this approach to the velocity structures expected from nonextensive thermodynamics. We find that the nonextensive and simulated N-body rms-velocity distributions do not match one another. The nonextensive rms-velocity profile is either monotonically decreasing or displays little radial variation, each of which disagrees with the rms-velocity distributions seen in simulations. We conclude that the currently discussed nonextensive models require further modifications in order to corroborate dark matter halo simulations. (adapted from TeX)
description: 3 color figures, accepted for publication in ApJ
Gottes Leibe und die Hoffnung der Menschen
Creators: name: Adamavi-Aho Ekué, Amélé
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 65 Nr. 1 (2016): Ökumenische Rundschau, Band 65, Heft 1
Multiple Thresholds in a Model System of Noisy Ion Channels
Creators: name: Barber, Michael J.
name: Ristig, Manfred L.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: Voltage-activated ion channels vary randomly between open and closed states, influenced by the membrane potential and other factors. Signal transduction is enhanced by noise in a simple ion channel model. The enhancement occurs in a finite range of signals; the range can be extended using populations of channels. The range increases more rapidly in multiple-threshold channel populations than in single-threshold populations. The diversity of ion channels may thus be present as a strategy to reduce the metabolic costs of handling a broad class of electrochemical signals.
description: REVTeX 4, 5 pages, 4 figures; added paragraph
Coherent meta-materials and the lasing spaser
Creators: name: Zheludev, N. I.
name: Prosvirnin, S. L.
name: Papasimakis, N.
name: Fedotov, V. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: In 2003 Bergman and Stockman introduced the spaser, a quantum amplifier of surface plasmons by stimulated emission of radiation [1]. They argued that, by exploiting a metal/dielectric composite medium, it should be possible to construct a nano-device, where a strong coherent field is built up in a spatial region much smaller than the wavelength [1,2]. V-shaped metallic inclusion, combined with a collection of semiconductor quantum dots were discussed as a possible realization of the spaser [1]. Here we introduce a further development of the spaser concept. We show that by combining the metamaterial and spaser ideas one can create a narrow-diversion coherent source of electromagnetic radiation that is fuelled by plasmonic oscillations. We argue that two-dimensional arrays of a certain class of plasmonic resonators supporting high-Q coherent current excitations provide an intriguing opportunity to create spatially and temporally coherent laser source, the Lasing Spaser.
Astrophysical Explosions Driven by a Rotating, Magnetized, Gravitating Sphere
Creators: name: Matt, Sean
name: Frank, Adam
name: Blackman, Eric G.
name: ;
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the results of a numerical magnetohydrodynamic simulation that demonstrates a mechanism by which magnetic fields tap rotational energy of a stellar core and expel the envelope. Our numerical setup, designed to focus on the basic physics of the outflow mechanism, consists of a solid, gravitating sphere, which may represent the compact core of a star, surrounded by an initially hydrostatic envelope of ionized gas. The core is threaded by a dipolar magnetic field that also permeates the envelope. At the start of the simulation, the core begins to rotate at 10% of the escape speed. The magnetic field is sufficiently strong to drive a magneto-rotational explosion, whereby the entire envelope is expelled, confirming the expectation of analytical models. Furthermore, the dipolar nature of the field results in an explosion that is enhanced simultaneously along the rotation axis (a jet) and along the magnetic equator. While the initial condition is simplified, the simulation approximates circumstances that may arise in astrophysical objects such as Type II supernovae, gamma ray bursts, and proto-planetary nebulae.
description: Accepted for publication in ApJ Letters
Motion control of non-fixed base robotic manipulators
Creators: name: Carter, Frederick Michael
Publisher: name: University of British Columbia
Year: 2009

description: Robotic manipulators mounted on spacecraft experience a number of kinematic, dynamic, and control problems because the motion of the spacecraft is affected by the robot motion. Because of this dynamic coupling, robot motion required to produce a given robot end-effector position for a fixed base manipulator would not result in correct end-effector position for the same manipulator mounted on a spacecraft. In this thesis, the general three dimensional equations of motion are derived for an n link manipulator mounted on a non-fixed base object. Instead of performing a single inverse kinematic calculation at the beginning of a movement to determine the required joint setpoints, multiple inverse kinematic updates are done throughout a movement. The updating sequence is determined by an optimal inverse kinematic updating algorithm. This motion control algorithm is based on experimental simulation results performed in Matlab and a set of performance indices that are used as guidelines. Simple PD joint controllers are used for servoing the manipulator joints for a planar robot application. A joint trajectory generator utilizing velocity time scaling and quintic polynomials is developed. In addition to compensating for the base motion, it is shown that multiple updating requires less energy consumption than single inverse kinematic calculation based movements. Endpoint overcompensation and endpoint servoing are two techniques that enable any desired manipulator accuracy assuming kinematic and dynamic singuarities are not encountered. The derived motion control techniques incorporate the base motion without base motion control. Knowledge of the system dynamics is not required and the iterative inverse kinematics is performed online without model prediction.
Beam related gamma background at the JSNS2
Creators: name: Daeun Jung
Publisher: name: Zenodo
Year: 2021
Subjects: Neutrino Masses and Mixing - Sterile Neutrinos and New Physics

description: Parallel Flash Talk at the
 "XIX International Workshop on Neutrino Telescopes"
 on line - 18-26 February, 2021
description: for the JSNS2 collaboration
KeV Sterile Neutrino Dark Matter Terrestrial Searches: Alive and Well
Creators: name: Benso, Cristina
Publisher: name: Zenodo
Year: 2021
Subjects: Neutrino Masses and Mixing - Sterile Neutrinos and New Physics

description: Parallel Flash Talk at the
 "XIX International Workshop on Neutrino Telescopes"
 on line - 18-26 February, 2021
Binary Black Hole Encounters, Gravitational Bursts and Maximum Final Spin
Creators: name: Washik, M. C.
name: Healy, J.
name: Herrmann, F.
name: Hinder, I.
name: Shoemaker, D. M.
name: Laguna, P.
name: Matzner, R. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The spin of the final black hole in the coalescence of nonspinning black holes is determined by the ``residual'' orbital angular momentum of the binary. This residual momentum consists of the orbital angular momentum that the binary is not able to shed in the process of merging. We study the angular momentum radiated, the spin of the final black hole and the gravitational bursts in a series of orbits ranging from almost direct infall to numerous orbits before infall that exhibit multiple bursts of radiation in the merger process. We show that the final black hole gets a maximum spin parameter $a/M_h \le 0.78$, and this maximum occurs for initial orbital angular momentum $L \approx M^2_h$.
description: Replaced with version to appear in PRL
Ground state energy of unitary fermion gas with the Thomson Problem approach
Creators: name: Chen, Ji-sheng
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: Astrophysics (astro-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The dimensionless universal coefficient $ξ$ defines the ratio of the unitary fermions energy density to that for the ideal non-interacting ones in the non-relativistic limit with T=0. The classical Thomson Problem is taken as a nonperturbative quantum many-body arm to address the ground state energy including the low energy nonlinear quantum fluctuation/correlation effects. With the relativistic Dirac continuum field theory formalism, the concise expression for the energy density functional of the strongly interacting limit fermions at both finite temperature and density is obtained. Analytically, the universal factor is calculated to be $ξ={4/9}$. The energy gap is $Δ=\frac{{5}{18}{k_f^2}/(2m)$.
description: Identical to published version with revisions according to comments
Cosmic ray induced Background study at the JSNS2 experiment
Creators: name: HyoungKu Jeon
Publisher: name: Zenodo
Year: 2021
Subjects: Sterile Neutrinos and New Physics

description: Parallel Flash Talk at the
 "XIX International Workshop on Neutrino Telescopes"
 on line - 18-26 February, 2021
description: for the JSNS2 collaboration
The detailed analysis of the results of the Neutrino-4 experiment on the search for sterile neutrino
Creators: name: A.P. Serebrov
name: R.M. Samoilov
Publisher: name: Zenodo
Year: 2021
Subjects: Sterile Neutrinos and New Physics

description: Parallel Contributed Talk at the
 "XIX International Workshop on Neutrino Telescopes"
 on line - 18-26 February, 2021
description: Neutrino-4 Collaboration NRC "KI" Petersburg Nuclear Physics Institute, Gatchinа, Russia JSC "SSC Research Institute of Atomic Reactors", Dimitrovgrad, Russia Dimitrovgrad Engineering and Technological Institute MEPhI,
Fairy von Lilienfelds Verständnis des Mönchtums als Kennzeichen der Kirche in Ost und West
Creators: name: Albrecht, Ruth
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 65 Nr. 1 (2016): Ökumenische Rundschau, Band 65, Heft 1
Cluster analysis of resistance combinations in Escherichia coli from different human and animal populations in Germany 2014-2017
Creators: name: Suwono, Beneditta
name: Eckmanns, Tim
name: Kaspar, Heike
name: Merle, Roswitha
name: Zacher, Benedikt
name: Kollas, Chris
name: Weiser, Armin A.
name: Noll, Ines
name: Feig, Marcel
name: Tenhagen, Bernd-Alois
Publisher: name: Robert Koch-Institut
Year: 2021
Subjects: subject: 610 Medizin und Gesundheit

description: Recent findings on Antibiotic Resistance (AR) have brought renewed attention to the comparison of data on AR from human and animal sectors. This is however a major challenge since the data is not harmonized. This study performs a comparative analysis of data on resistance combinations in Escherichia coli (E. coli) from different routine surveillance and monitoring systems for human and different animal populations in Germany. Data on E. coli isolates were collected between 2014 and 2017 from human clinical isolates, non-clinical animal isolates from food-producing animals and food, and clinical animal isolates from food-producing and companion animals from national routine surveillance and monitoring for AR in Germany. Sixteen possible resistance combinations to four antibiotics—ampicillin, cefotaxime, ciprofloxacin and gentamicin–for these populations were used for hierarchical clustering (Euclidian and average distance). All analyses were performed with the software R 3.5.1 (Rstudio 1.1.442). Data of 333,496 E. coli isolates and forty-one different human and animal populations were included in the cluster analysis. Three main clusters were detected. Within these three clusters, all human populations (intensive care unit (ICU), general ward and outpatient care) showed similar relative frequencies of the resistance combinations and clustered together. They demonstrated similarities with clinical isolates from different animal populations and most isolates from pigs from both non-clinical and clinical isolates. Isolates from healthy poultry demonstrated similarities in relative frequencies of resistance combinations and clustered together. However, they clustered separately from the human isolates. All isolates from different animal populations with low relative frequencies of resistance combinations clustered together. They also clustered separately from the human populations. Cluster analysis has been able to demonstrate the linkage among human isolates and isolates from various animal populations based on the resistance combinations. Further analyses based on these findings might support a better one-health approach for AR in Germany.
Constraining the NC π0 Background for MicroBooNE's Single-Photon Search
Creators: name: Mogan, Andrew J.
Publisher: name: Zenodo
Year: 2021
Subjects: Sterile Neutrinos and New Physics

description: Parallel Flash Talk at the
 "XIX International Workshop on Neutrino Telescopes"
 on line - 18-26 February, 2021
Almost rolling motion: An investigation of rolling grooved cylinders
Creators: name: Mead, Lawrence R.
name: Bentrem, Frank W.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: We examine the dynamics of cylinders that are grooved to form N teeth for rolling motion down an inclined plane. The grooved cylinders are experimentally found to reach a terminal velocity. This result can be explained by the inclusion of inelastic processes which occur whenever a tooth hits the surface. The fraction of the angular velocity that is lost during an inelastic collision is phenomenologically found to be proportional to (2*sin^2*pi/N)-(alpha*sin^3*pi/N), and the method of least squares is used to find the constant alpha=0.98. The adjusted theoretical results for the time of rolling as well as for terminal velocity are found to be in good agreement with the experimental results.
description: 8 pages, 6 figures http://link.aip.org/link/?AJPIAS/66/202/1
Maximally polarized states for quantum light fields
Creators: name: Sanchez-Soto, L. L.
name: Yustas, E. C.
name: Bjork, G.
name: Klimov, A. B.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The degree of polarization of a quantum state can be defined as its Hilbert-Schmidt distance to the set of unpolarized states. We demonstrate that the states optimizing this degree for a fixed average number of photons $\bar{N}$ present a fairly symmetric, parabolic photon statistics, with a variance scaling as $\bar{N}^2$. Although no standard optical process yields such a statistics, we show that, to an excellent approximation, a highly squeezed vacuum can be considered as maximally polarized.
description: 4 pages, 3 eps-color figures
Nonlocal surface dipoles and vortices
Creators: name: Ye, Fangwei
name: Kartashov, Yaroslav V.
name: Torner, Lluis
Publisher: name: arXiv
Year: 2008
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We predict the existence and address the stability of two-dimensional surface solitons featuring topologically complex shapes, including dipoles, vortices, and bound states of vortex solitons, at the interface of nonlocal thermal media. Unlike their counterparts in bulk media, surface dipoles are found to be stable in the entire existence domain. Surface vortices are found to exhibit strongly asymmetric intensity and phase distributions, and are shown to be stable, too. Bound states of surface vortex solitons belong to a novel class of surface solitons having no counterparts in bulk media. Such states are found to be stable provided that their energy flow does not exceed an upper threshold. Our findings constitute the first known example of topologically complex solitons located at nonlocal two-dimensional interfaces.
description: 20 pages, 5 figures, to appear in Phys. Rev. A
Locally stable non-supersymmetric Minkowski vacua in supergravity
Creators: name: Gomez-Reino, Marta
name: Scrucca, Claudio A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We perform a general study about the existence of non-supersymmetric minima with vanishing cosmological constant in supergravity models involving only chiral superfields. We study the conditions under which the matrix of second derivatives of the scalar potential is positive definite. We show that there exist very simple and strong necessary conditions for stability that constrain the Kahler curvature and the ratios of the supersymmetry-breaking auxiliary fields defining the Goldstino direction. We then derive more explicitly the implications of these constraints in the case where the Kahler potential for the supersymmetry-breaking fields is separable into a sum of terms for each of the fields. We also discuss the implications of our general results on the dynamics of moduli fields arising in string compactifications and on the relative sizes of their auxiliary fields, which are relevant for the soft terms of matter fields. We finally comment on how the idea of uplifting a supersymmetric AdS vacuum fits into our general study.
description: 24 pages, no figures. v2 references added and typos corrected. v3 published version
Search for three body Pion Decays π+ → l+νX in the PIENU Experiment
Creators: name: Ito, Shintaro
name: A. Aguilar-Arevalo
name: M. Aoki
name: M. Blecher
name: D.I. Britton
name: D. Protopopescu
name: S. Ito
name: D.A. Bryman
name: D.Vom Bruch
name: S. Cuen-Rochin
name: C. Malbrunot
name: T. Sullivan
name: S. Chen
name: J. Comfort
name: L. Doria
name: P. Gumplinger
name: L. Kurchaninov
name: R.E. Mischke
name: T. Numao
name: A. Sher
name: D. Vavilov
name: A. Hussein
name: Y. Igarashi
name: S. Kettell
name: L. Littenberg
Publisher: name: Zenodo
Year: 2021
Subjects: Sterile Neutrinos and New Physics

description: Parallel Contributed Talk at the
 "XIX International Workshop on Neutrino Telescopes"
 on line - 18-26 February, 2021
description: For PIENU Collaboration
The Dark UNiverse Explorer (DUNE): Proposal to ESA's Cosmic Vision
Creators: name: Refregier, Alexandre
name: collaboration, the DUNE
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The Dark UNiverse Explorer (DUNE) is a wide-field space imager whose primary goal is the study of dark energy and dark matter with unprecedented precision. For this purpose, DUNE is optimised for the measurement of weak gravitational lensing but will also provide complementary measurements of baryonic accoustic oscillations, cluster counts and the Integrated Sachs Wolfe effect. Immediate auxiliary goals concern the evolution of galaxies, to be studied with unequalled statistical power, the detailed structure of the Milky Way and nearby galaxies, and the demographics of Earth-mass planets. DUNE is an Medium-class mission which makes use of readily available components, heritage from other missions, and synergy with ground based facilities to minimise cost and risks. The payload consists of a 1.2m telescope with a combined visible/NIR field-of-view of 1 deg^2. DUNE will carry out an all-sky survey, ranging from 550 to 1600nm, in one visible and three NIR bands which will form a unique legacy for astronomy. DUNE will yield major advances in a broad range of fields in astrophysics including fundamental cosmology, galaxy evolution, and extrasolar planet search. DUNE was recently selected by ESA as one of the mission concepts to be studied in its Cosmic Vision programme.
description: Accepted in Experimental Astronomy
Laser stabilization to a cryogenic fiber ring resonator
Creators: name: Merkel, Benjamin
name: Repp, Daniel
name: Reiserer, Andreas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Atomic Physics (physics.atom-ph)
subject: Instrumentation and Detectors (physics.ins-det)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The frequency stability of lasers is limited by thermal noise in state-of-the-art frequency references. Further improvement requires operation at cryogenic temperature. In this context, we investigate a fiber-based ring resonator. Our system exhibits a first-order temperature-insensitive point around $3.55$ K, much lower than that of crystalline silicon. The observed low sensitivity with respect to vibrations ($<5\cdot{10^{-11}}\,\text{m}^{-1} \text{s}^{2}$), temperature ($-22(1)\cdot{10^{-9}}\,\text{K}^{-2}$) and pressure changes ($4.2(2)\cdot{10^{-11}}\,\text{mbar}^{-2}$) makes our approach promising for future precision experiments.
Four-boson scale near a Feshbach resonance
Creators: name: Yamashita, M. T.
name: Tomio, Lauro
name: Delfino, A.
name: Frederico, T.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We show that an independent four-body momentum scale $μ_{(4)}$ drives the tetramer binding energy for fixed trimer energy (or three-body scale $μ_{(3)}$) and large scattering length ($a$). The three- and four-body forces from the one-channel reduction of the atomic interaction near a Feshbach resonance disentangle $μ_{(4)}$ and $μ_{(3)}$. The four-body independent scale is also manifested through a family of Tjon-lines, with slope given by $μ_{(4)}/μ_{(3)}$ for $a^{-1}=0$. There is the possibility of a new renormalization group limit cycle due to the new scale.
Study of the semileptonic decays B->pi, D->pi and D->K
Creators: name: Albertus, C.
name: Flynn, J. M.
name: Hernandez, E.
name: Nieves, J.
name: Verde-Velasco, J. M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The semileptonic decay B->pi is studied starting from a simple quark model that takes into account the effect of the B* resonance. A novel, multiply subtracted, Omnes dispersion relation has been implemented to extend the predictions of the quark model to all q^2 values accesible in the physical decay. By comparison to the experimental data, we extract |V_ub|=0.0034 +/- 0.0003(exp.) +/- 0.0007(theory). As a further test of the model, we have also studied D->pi and D->K decays for which we get good agreement with experiment.
description: 3 pages, 5 figures. Talk given at the IV International Conference on Quarks and Nuclear Physics (QNP06), Madrid, June 5th - 10th 2006
Letter from "The Kelowna Land & Orchard Company Limited" to Mr. J. [James] Goldie, November 25, 1910
Creators: name: Kelowna Land & Orchard Co.
Publisher: name: The University of British Columbia
Year: 2017

description: Two letters to Mr. J. [James] Goldie from "The Kelowna Land & Orchard Company Limited", dated November 25, 1910, regarding tree orders and stock.
title: Spin- and angle-resolved photoemission study of topological band inversions within a single orbital manifold
Creators: name: Clark, Oliver Jon
Publisher: name: University of St Andrews
Year: 2019

description: The isolation of graphene in 2004 and the subsequent characterisation of its many remarkable properties marked the start of an intense and ongoing research effort into other systems hosting so-called Dirac cones within their electronic band structures. This thesis focuses on two classes of Dirac materials in particular. Dirac semimetals are essentially three-dimensional analogues of graphene, hosting spin-degenerate Dirac cones within their bulk band structure. Topological insulators are characterised by 'topological surface states' which are spin-polarised, surface-localised Dirac cones, essentially enclosing an otherwise insulating material in a highly conductive outer shell. In both cases, the formation of the Dirac cone requires the crossing of bands within the bulk electronic band structure. In the vast majority of experimental realisations to date, these two bands derive from different atomic and orbital manifolds. Through spin- and angle-resolved photoemission, we establish that Dirac cones arising instead from a single-orbital manifold are both commonplace and advantageous. A mechanism allowing for the simultaneous formation of bulk Dirac cones and topological surface states is introduced, requiring only a discrepancy in bandwidths of a single, crystal field-split orbital manifold along a rotationally-symmetric axis. Unlike in the conventional cases, the Dirac cones populating the resulting 'topological ladders' are not easily destroyed by changes to the relative energetics of orbital manifolds, caused by deformations to a lattice, for example. Instead, lattice deformations can be used to tune the position along the rotationally-symmetric axis where the crossings occur, but the states themselves are extremely robust. Indeed, we demonstrate that topological ladders of a common origin exist in six transition metal dichalcogenide (TMD) compounds, despite their disparate bulk properties and ground states. Moreover, the underlying mechanism driving the formation of topological ladders is expected to be applicable to many other compound classes, suggesting that single-orbital manifold topological phenomena is prevalent in nature.
An oscillating Universe from the linearized R^{2} theory of gravity
Creators: name: Corda, Christian
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: An oscillating Universe which arises from the linearized R^{2} theory of gravity is discussed, showing that some observative evidences like the cosmological redshift and the Hubble law are in agreement with the model. In this context Dark Energy is seen like a pure curvature effect arising by the Ricci scalar.
description: To appear in General Relativity and Gravitation DOI: 10.1007/s10714-008-0627-3
Search for sterile neutrinos at REN
Creators: name: Yoon, Seok-Gyeong
Publisher: name: Zenodo
Year: 2021
Subjects: Sterile Neutrinos and New Physics

description: Parallel Contributed Talk at the
 "XIX International Workshop on Neutrino Telescopes"
 on line - 18-26 February, 2021
description: On behalf of the RENO collaboration
Integrated planning, monitoring, and control of milling operations
Creators: name: Seethaler, Rudolf Johannes
Publisher: name: University of British Columbia
Year: 2009

description: The thesis examines the integration of high level process planning and optimization activities with the normal processes of interpolation and control. The normal approach to part manufacture starts with process planning and proceeds to the programming of tool paths and the actual cutting on the machine tool. The process planning system itself is hierarchical in nature, and many cost or process parameters must be estimated at the higher levels. It is usual, because of the lack of appropriate values for all process parameters, to be somewhat conservative in the planning process. It is also unfortunately usual to discard much of the technological data derived during the planning in the process of producing the standard input format required for CNC machine tools. The work carried out has shown that there are considerable advantages to the integration of these levels of the manufacturing process. Most importantly, information regarding part geometry and estimated process constants may be passed to monitoring tasks within the CNC, and calibration tasks within the CNC system can pass updated values of actual part parameters back to the planning system for further analysis. Clearly, however, such integration allows much further advantage, and in this regard the possibility of dynamic process planning appears most promising. The concept of dynamic process planning is the provision of the capacity for the machine to reprogram itself in response to feedback from the monitoring tasks. Typical examples of dynamic planning would include the recovery from tool breakage or, more typically, the replanning of paths within a feature when more or less material than expected is found. (Recovery from tool breakage requires replanning of the remaining feature without the current tool). The integration of activities on a machine tool requires the presence of an adequate monitoring system, reliable sensors, and suitable models to relate the measured parameters to part geometry and tool condition. The author has developed basic models of cutting force and methods for identifying runout or breakage in milling. The work directed toward runout has mainly considered radial runout; however, simplified models have also been proposed to identify axial runouts. Finally, in order to allow the measurement of force on practical workpieces, the author has designed a simple robust and low cost table dynamometer.
A note on Gauge Theories Coupled to Gravity
Creators: name: Banks, Tom
name: Johnson, Matt
name: Shomer, Assaf
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We analyze the bound on gauge couplings $e\geq m/m_p$, suggested by Arkani-Hamed et.al. We show this bound can be derived from simple semi-classical considerations and holds in spacetime dimensions greater than or equal to four. Non abelian gauge symmetries seem to satisfy the bound in a trivial manner. We comment on the case of discrete symmetries and close by performing some checks for the bound in higher dimensions in the context of string theory.
description: 15 pages, 1 figure, Latex
Time Distance Study of Isolated Sunspots
Creators: name: Zharkov, S.
name: Nicholas, C.
name: Thompson, M. J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a comparative seismic study of conditions around and beneath isolated sunspots. Using the European Grid of Solar Observations' Solar Feature Catalogue of sunspots derived from SOHO/MDI continuum and magnetogram data, 1996-2005, we identify a set of isolated sunspots by checking that within a Carrington Rotation there were no other spots detected in the vicinity. We then use level-2 tracked MDI Dopplergrams available from SOHO website to investigate wave-speed perturbations of such sunspots using time-distance helioseismology.
description: 5 pages, 5 figures
Defect Spectroscopy and Non-Ionizing Energy Loss Analysis of Proton and Electron Irradiated p-type GaAs Solar Cells
Creators: name: Pellegrino, Carmine
name: Gagliardi, Alessio
name: Zimmermann, Claus G.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Journal of Applied Physics (Vol.128, Issue 19) and may be found at https://doi.org/10.1063/5.0028029
description: This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Journal of Applied Physics (Vol.128, Issue 19) and may be found at https://doi.org/10.1063/5.0028029
Dolichogenidea cultriformis Song & Chen 2004
Creators: name: Fernandez-Triana, Jose
name: Sakagami, Kota
name: Shimizu, So
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Braconidae
Dolichogenidea
Dolichogenidea cultriformis

description: D. cultriformis Song & Chen, 2004: Propodeum mostly smooth, with only a small trace of posterior areola carinae near nucha; ovipositor sheath wide; metasoma decurving 60° from mesosoma.
description: Published as part of Fernandez-Triana, Jose, Sakagami, Kota & Shimizu, So, 2018, Dolichogenidea maetoi sp. nov. (Hymenoptera: Braconidae) from Japan, the first parasitoid wasp recorded from Hyblaea fortissima (Lepidoptera), pp. 167-175 in Acta Entomologica Musei Nationalis Pragae 58 (1) on page 171, DOI: 10.2478/aemnp-2018-0014, http://zenodo.org/record/3699178
MicroBooNE's Search for a Photon-Like Low Energy Excess
Creators: name: Ross-Lonergan, Mark
Publisher: name: Zenodo
Year: 2021
Subjects: Sterile Neutrinos and New Physics

description: Parallel Contributed Talk at the
 "XIX International Workshop on Neutrino Telescopes"
 on line - 18-26 February, 2021
description: On behalf of the MicroBooNE Collaboration