cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The development of a detailed seismic performance assessment : a framework for China's HSR MSSS bridge system
Creators: name: Xie, Xu
Publisher: name: University of British Columbia
Year: 2017

description: The Multi Span Simply Supported (MSSS) bridge system is the most commonly used structural system for High Speed Railway (HSR) networks in China. With China Railway rapidly expanding to the southwestern region of China, an area of high seismic activity, significant concerns have been raised to confirm whether the conventional HSR MSSS bridge, designed for low seismic zones, can be used in areas of high earthquake shaking intensities. In this thesis, the performance-based earthquake engineering (PBEE) methodology, originally developed for the seismic performance assessment of buildings, has been modified and applied to quantify the direct seismic loss of the China’s HSR MSSS bridge system. This study is the first of its kind to systematically define and quantify the damage states, and associated repair actions, repair costs and travel delay losses for the China’s HSR MSSS bridge system. The developed loss assessment model can be employed to assess the seismic performance of the HSR MSSS bridge system in diverse regions of China. In this study, a detailed parameter study using a framework developed in this thesis was utilized to study the influence of the shear capacity of fixed bearings on the seismic performance of a typical four-span HSR MSSS bridge system located in the Sichuan-Yunnan region in China. The results reveal that the financial loss of the HSR MSSS bridge system is highly dependent on the shear strength of the fixed bearing. Overall, the travel delay costs outweigh those for structural repair, where most of the financial loss was attributed to loss of functionality and repairs of the track-slab system and the bearings of the HSR MSSS bridge system. In addition, the developed fragility data and PBEE framework were used to optimize the design of the HSR MSSS bridge system using friction pendulum devices. The results show that the most optimal seismic loss of the isolated HSR MSSS bridge system can be reduced by 90% when compared to the that in the absence of seismic isolation.
Notes on $f(T)$ Theories
Creators: name: Zhang, Yi
name: Li, Hui
name: Gong, Yungui
name: Zhu, Zong-Hong
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The cosmological models based on teleparallel gravity with nonzero torsion are considered. To investigate the evolution of this theory, we consider the phase-space analysis of the $f(T)$ theory. It shows when the tension scalar can be written as an inverse function of $x$ where $x=ρ_{e}/(3m_{pl}^{2}H^{2})$ and $T=g(x)$, the system is an autonomous one. Furthermore,the $ω_{e}-ω'_{e}$ phase analysis is given out. We perform the dynamical analysis for the models $f(T)=βT\ln(T/T_{0})$ and $f(T)=αm_{pl}^{2}(-T/m_{pl}^{2})^{n}$ particularly. We find that the universe will settle into de-Sitter phase for both models. And we have examined the evolution behavior of the power law form in the $ω_{ep}-ω'_{ep}$ plane.
description: 13 pages, 2 figures
Nearly-flat bands with nontrivial topology
Creators: name: Sun, Kai
name: Gu, Zheng-Cheng
name: Katsura, Hosho
name: Sarma, S. Das
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We report the theoretical discovery of a large class of 2D tight-binding models containing nearly-flat bands with nonzero Chern numbers. In contrast with previous studies, where nonlocal hoppings are usually required, the Hamiltonians of our models only require short-range hopping and have the potential to be realized in cold atomic gases. Due to the similarity with 2D continuum Landau levels, these topologically nontrivial nearly-flat bands may lead to the realization of fractional anomalous quantum Hall states and fractional topological insulators in real materials. Among the models we discover, the most interesting and practical one is a square-lattice three-band model which has only nearest-neighbor hopping. To understand better the physics underlying the topological flat band aspects, we also present the studies of a minimal two-band model on the checkerboard lattice.
description: 4 pages, 3 figures, Supplementary materials added
Additional file 1 of SIRPα-αCD123 fusion antibodies targeting CD123 in conjunction with CD47 blockade enhance the clearance of AML-initiating cells
Creators: name: Tahk, Siret
name: Vick, Binje
name: Hiller, Björn
name: Schmitt, Saskia
name: Marcinek, Anetta
name: Perini, Enrico D.
name: Leutbecher, Alexandra
name: Augsberger, Christian
name: Reischer, Anna
name: Tast, Benjamin
name: Humpe, Andreas
name: Jeremias, Irmela
name: Subklewe, Marion
name: Fenn, Nadja C.
name: Hopfner, Karl-Peter
Publisher: name: figshare
Year: 2021
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 1. Supplementary tables and figures.
Axion-like particle imprint in cosmological very-high-energy sources
Creators: name: Dominguez, A.
name: Sanchez-Conde, M. A.
name: Prada, F.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Discoveries of very high energy (VHE) photons from distant blazars suggest that, after correction by extragalactic background light (EBL) absorption, there is a flatness or even a turn-up in their spectra at the highest energies that cannot be easily explained by the standard framework. Here, it is shown that a possible solution to this problem is achieved by assuming the existence of axion-like particles (ALPs) with masses ~1 neV. The ALP scenario is tested making use of observations of the highest redshift blazars known in the VHE energy regime, namely 3C 279, 3C 66A, PKS 1222+216 and PG 1553+113. In all cases, better fits to the observed spectra are found when including ALPs rather than considering EBL only. Interestingly, quite similar critical energies for photon/ALP conversions are also derived, independently of the source considered.
description: 12 pages, 2 figures, 2 tables; accepted by JCAP. Replaced to match the accepted version
The two dimensional N=(2,2) Wess-Zumino Model in the Functional Renormalization Group Approach
Creators: name: Synatschke-Czerwonka, Franziska
name: Fischbacher, Thomas
name: Bergner, Georg
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the supersymmetric N=(2,2) Wess-Zumino model in two dimensions with the functional renormalization group. At leading order in the supercovariant derivative expansion we recover the nonrenormalization theorem which states that the superpotential has no running couplings. Beyond leading order the renormalization of the bare mass is caused by a momentum dependent wave function renormalization. To deal with the partial differential equations we have developed a numerical toolbox called FlowPy. For weak couplings the quantum corrections to the bare mass found in lattice simulations is reproduced with high accuracy. But in the regime with intermediate couplings higher-order-operators that are not constrained by the nonrenormalization theorem yield the dominating contribution to the renormalized mass.
description: 12 pages, 4 figures, version published by PRD
Nonlocal PNJL model beyond mean field and the QCD phase transition
Creators: name: Radzhabov, A. E.
name: Blaschke, D.
name: Buballa, M.
name: Volkov, M. K.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A nonlocal chiral quark model is consistently extended beyond mean field using a strict 1/Nc expansion scheme. The parameters of the nonlocal model are refitted so that the physical values of the pion mass and the weak pion decay constant are obtained. The size of the 1/Nc correction to the quark condensate is carefully studied and compared with the usual local Nambu-Jona-Lasinio model. It is found that even the sign of the corrections can be different. This can be attributed to the mesonic cut-off of the local model. The model is also applied to finite temperature. We find that the 1/Nc corrections dominate the melting of the chiral condensate at low temperatures, T<100 MeV, in agreement with chiral perturbation theory. On the other hand, the relative importance of the 1/Nc corrections in the cross-over regime depends on the parameter T0 of the Polyakov loop potential. For T0=270 MeV, corresponding to a fit of lattice data for pure gluodynamics, the correction terms are large and lead to a lowering of the chiral phase transition temperature in comparison with the mean-field result. Near the phase transition the 1/Nc expansion breaks down and a non-perturbative scheme is needed to include mesonic correlations in that regime. Lowering T0 leads to a more rapid cross-over even at the mean-field level and the unstable region for the 1/Nc corrections shrinks. For T0< 220 MeV the temperatures of deconfinement and chiral restoration are practically synchronized.
description: 16 pages, 19 figures; v3: discussion of the T0 dependence and comparison with lattice data added; version accepted by Phys. Rev. D
Gaussianizing the non-Gaussian lensing convergence field I: the performance of the Gaussianization
Creators: name: Yu, Yu
name: Zhang, Pengjie
name: Lin, Weipeng
name: Cui, Weiguang
name: Fry, James N.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Motivated by recent works of Neyrinck et al. 2009 and Scherrer et al. 2010, we proposed a Gaussianization transform to Gaussianize the non-Gaussian lensing convergence field $κ$. It performs a local monotonic transformation $κ\rightarrow y$ pixel by pixel to make the unsmoothed one-point probability distribution function of the new variable $y$ Gaussian. We tested whether the whole $y$ field is Gaussian against N-body simulations. (1) We found that the proposed Gaussianization suppresses the non-Gaussianity by orders of magnitude, in measures of the skewness, the kurtosis, the 5th- and 6th-order cumulants of the $y$ field smoothed over various angular scales relative to that of the corresponding smoothed $κ$ field. The residual non-Gaussianities are often consistent with zero within the statistical errors. (2) The Gaussianization significantly suppresses the bispectrum. Furthermore, the residual scatters around zero, depending on the configuration in the Fourier space. (3) The Gaussianization works with even better performance for the 2D fields of the matter density projected over $\sim 300 \mpch$ distance interval centered at $z\in(0,2)$, which can be reconstructed from the weak lensing tomography. (4) We identified imperfectness and complexities of the proposed Gaussianization. We noticed weak residual non-Gaussianity in the $y$ field. We verified the widely used logarithmic transformation as a good approximation to the Gaussianization transformation. However, we also found noticeable deviations.
description: 13 pages, 15 figures, accepted by PRD
Two-channel Kondo physics in tunnel-coupled double quantum dots
Creators: name: Jayatilaka, Frederic W.
name: Galpin, Martin R.
name: Logan, David E.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate theoretically the possibility of observing two-channel Kondo (2CK) physics in tunnel-coupled double quantum dots (TCDQDs), at both zero and finite magnetic fields; taking the two-impurity Anderson model (2AIM) as the basic TCDQD model, together with effective low-energy models arising from it by Schrieffer-Wolff transformations to second and third order in the tunnel couplings. The models are studied primarily using Wilson's numerical renormalization group. At zero-field our basic conclusion is that while 2CK physics arises in principle provided the system is sufficiently strongly-correlated, the temperature window over which it could be observed is much lower than is experimentally feasible. This finding disagrees with recent work on the problem, and we explain why. At finite field, we show that the quantum phase transition known to arise at zero-field in the two-impurity Kondo model (2IKM), with an essentially 2CK quantum critical point, persists at finite fields. This raises the prospect of access to 2CK physics by tuning a magnetic field, although preliminary investigation suggests this to be even less feasible than at zero field.
description: 10 pages, 8 figures. Version as published in PRB
A General Black String and its Microscopics
Creators: name: Compère, Geoffrey
name: de Buyl, Sophie
name: Stotyn, Sean
name: Virmani, Amitabh
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Using G2(2) dualities we construct the most general black string solution of minimal five-dimensional ungauged supergravity. The black string has five independent parameters, namely, the magnetic one-brane charge, smeared electric zero-brane charge, boost along the string direction, energy above the BPS bound, and rotation in the transverse space. In one extremal limit it reduces to the three parameter supersymmetric string of five-dimensional minimal supergravity; in another extremal limit it reduces to the three parameter non-supersymmetric extremal string of five-dimensional minimal supergravity. It also admits an extremal limit when it has maximal rotation in the four-dimensional transverse space. The decoupling limit of our general black string is a BTZ black hole times a two sphere. The macroscopic entropy of the string is reproduced by the Maldacena-Strominger-Witten CFT in appropriate ranges of the parameters. When the pressureless condition is imposed, our string describes the infinite radius limit of the most general class of black rings of minimal supergravity. We discuss implications our solution has for extremal and non-extremal black rings of minimal supergravity.
description: 35 pages; 3 figures; v2 section 4.1.1 rewritten + minor changes + ref added
Determination of Dark Energy by the Einstein Telescope: Comparing with CMB, BAO and SNIa Observations
Creators: name: Zhao, W.
name: Broeck, C. Van Den
name: Baskaran, D.
name: Li, T. G. F.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A design study is currently in progress for a third generation gravitational-wave (GW) detector called Einstein Telescope (ET). An important kind of source for ET will be the inspiral and merger of binary neutron stars (BNS) up to $z \sim 2$. If BNS mergers are the progenitors of short-hard $γ$-ray bursts, then some fraction of them will be seen both electromagnetically and through GW, so that the luminosity distance and the redshift of the source can be determined separately. An important property of these `standard sirens' is that they are \emph{self-calibrating}: the luminosity distance can be inferred directly from the GW signal, with no need for a cosmic distance ladder. Thus, standard sirens will provide a powerful independent check of the $Λ$CDM model. In previous work, estimates were made of how well ET would be able to measure a subset of the cosmological parameters (such as the dark energy parameter $w_0$) it will have access to, assuming that the others had been determined to great accuracy by alternative means. Here we perform a more careful analysis by explicitly using the potential Planck CMB data as prior information for these other parameters. We find that ET will be able to constrain $w_0$ and $w_a$ with accuracies $Δw_0 = 0.099$ and $Δw_a = 0.302$, respectively. These results are compared with projected accuracies for the JDEM Baryon Acoustic Oscillations project and the SNAP Type Ia supernovae observations.
description: 28 pages, 5 figures, 5 tables; Published Version
In-line synthesis of multi-octave phase-stable infrared light
Creators: name: Kassab, Hadil
name: Gröbmeyer, Sebastian
name: Schweinberger, Wolfgang
name: Hofer, Christina
name: Steinleitner, Philipp
name: Högner, Maximilian
name: Amotchkina, Tatiana
name: Gerz, Daniel
name: Knorr, Matthias
name: Huber, Rupert
name: Karpowicz, Nicholas
name: Pupeza, Ioachim
Publisher: name: Universität Regensburg
Year: 2023
Subjects: subject: 530 Physik

description: Parametric downconversion driven by modern, high-power sources of 10-fs-scale near-infrared pulses, in particular intrapulse difference-frequency generation (IPDFG), affords combinations of properties desirable for molecular vibrational spectroscopy in the mid-infrared range: broad spectral coverage, high brilliance, and spatial and temporal coherence. Yet, unifying these in a robust and compact radiation source has remained a key challenge. Here, we address this need by employing IPDFG in a multi-crystal in-line geometry, driven by the 100-W-level, 10.6-fs pulses of a 10.6-MHz-repetition-rate, nonlinearly post-compressed Yb:YAG thin-disk oscillator. Polarization tailoring of the driving pulses using a bichromatic waveplate is followed by a sequence of two crystals, LiIO3 and LiGaS2, resulting in the simultaneous coverage of the 800-cm-1-to-3000-cm-1 spectral range (at -30-dB intensity) with 130 mW of average power. We demonstrate that optical-phase coherence is maintained in this in-line geometry, in theory and experiment, the latter employing ultra-broadband electro-optic sampling. These results pave the way toward coherent spectroscopy schemes like field-resolved and frequency-comb spectroscopy, as well as nonlinear, ultrafast spectroscopy and optical-waveform synthesis across the entire infrared molecular fingerprint region.
Bistability and resonance in the periodically stimulated Hodgkin-Huxley model with noise
Creators: name: Borkowski, L. S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We describe general characteristics of the Hodgkin-Huxley neuron's response to a periodic train of short current pulses with Gaussian noise. The deterministic neuron is bistable for antiresonant frequencies. When the stimuli arrive at the resonant frequency the firing rate is a continuous function of the current amplitude $I_0$ and scales as $(I_0-I_{th})^{1/2}$, where $I_{th}$ is an approximate threshold. Intervals of continuous irregular response alternate with integer mode-locked regions with bistable excitation edge. There is an even-all multimodal transition between the 2:1 and 3:1 states in the vicinity of the main resonance, which is analogous to the odd-all transition discovered earlier in the high-frequency regime. For $I_0
description: The size of the figures in this version is larger than in the published article
Photon-neutrino interaction in theta-exact covariant noncommutative field theory
Creators: name: Horvat, R.
name: Kekez, D.
name: Schupp, P.
name: Trampetic, J.
name: You, J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Photon-neutrino interactions arise quite naturally in noncommutative field theories. Such couplings are absent in ordinary field theory and imply experimental lower bounds on the energy scale Lambda_NC ~ 1/|theta|^2 of noncommutativity. Using non-perturbative methods and a Seiberg-Witten map based covariant approach to noncommutative gauge theory, we obtain theta-exact expressions for the interactions, thereby eliminating previous restrictions to low-energy phenomena. We discuss implications for plasmon decay, neutrino charge radii, big bang nucleosynthesis and ultrahigh energy cosmic rays. Our results behave reasonably throughout all interaction energy scales, thus facilitating further phenomenological applications.
description: using revtex4, 10 pages, 2 eps figure, text slightly expanded,references added, some typos fixed
Additional file 1 of Transcriptome analysis of heterogeneity in mouse model of metastatic breast cancer
Creators: name: Ionkina, Anastasia A.
name: Balderrama-Gutierrez, Gabriela
name: Ibanez, Krystian J.
name: Phan, Steve Huy D.
name: Cortez, Angelique N.
name: Mortazavi, Ali
name: Prescher, Jennifer A.
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1. Supplemental figures mentioned in main text.
The real singlet scalar dark matter model
Creators: name: Guo, Wan-Lei
name: Wu, Yue-Liang
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present an undated comprehensive analysis for the simplest dark matter model in which a real singlet scalar with a $Z_2$ symmetry is introduced to extend the standard model. According to the observed dark matter abundance, we predict the dark matter direct and indirect detection cross sections for the whole parameter space. The Breit-Wigner resonance effect has been considered to calculate the thermally averaged annihilation cross section. It is found that three regions can be excluded by the current direct and indirect dark matter search experiments. In addition, we also discuss the implication of this model for the Higgs searches at colliders.
description: 14 pages, 7 figures. discussion and references added, published in JHEP
Strong Correlations in Actinide Redox Reactions
Creators: name: Horowitz, S. E.
name: Marston, J. B.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Reduction-oxidation (redox) reactions of the redox couples An(VI)/An(V), An(V)/An(IV), and An(IV)/An(III), where An is an element in the family of early actinides (U, Np, and Pu), as well as Am(VI)/Am(V) and Am(V)/Am(III), are modeled by combining density functional theory with a generalized Anderson impurity model that accounts for the strong correlations between the 5f electrons. Diagonalization of the Anderson impurity model yields improved estimates for the redox potentials and the propensity of the actinide complexes to disproportionate.
description: 17 pages, 10 figure, 3 tables. Corrections and clarifications; this version has been accepted for publication in The Journal of Chemical Physics
Vortex density fluctuations in quantum turbulence
Creators: name: Baggaley, Andrew W.
name: Barenghi, Carlo F.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Computational Physics (physics.comp-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We compute the frequency spectrum of turbulent superfluid vortex density fluctuations and obtain the same Kolmogorov scaling which has been observed in a recent experiment in Helium-4. We show that the scaling can be interpreted in terms of the spectrum of reconnecting material lines. The calculation is performed using a vortex tree algorithm which considerably speeds up the evaluation of Biot-Savart integrals.
description: 7 Pages, 7 figures
Identification of the fluid induced instability phenomenon in journal bearings
Creators: name: Miraskari, Seyed Mohammad
Publisher: name: University of British Columbia
Year: 2017

description: The demand for high pressure injection of natural gas in underground has been an incentive for a growing interest in the design and manufacture of multistage compressors. Many of such compressors suffer from violent sub-synchronous whirl. If the spin-speed of the rotors exceed the “threshold speed of instability,” the rotor-bearing system experiences sub-synchronous whirling known as oil whirl/whip. For rotors supported on journal bearings, oil whirl is the most common cause of instability. Existing models fall short in predicting the nature of sub-synchronous instabilities in journal bearings with a finite length. In this thesis, a new nonlinear rotor-bearing model is introduced to characterize the phenomenon of oil whirl for rotors supported on finite length journal bearings. As a first step in constructing a rotor-bearing model, this research introduces a modified scheme for performance predictions of cavitated journal bearings. The resulting algorithms are then used throughout the thesis to obtain solutions to the Reynolds equation in original and perturbed form in order to calculate journal induced pressure and pressure gradients. The pressure gradients are used as a basis for the calculation of bearing linear and nonlinear dynamic coefficients. Dynamic coefficients are widely used to represent the journal bearing reaction forces exerted on the rotating shaft. These coefficients are implemented to construct mathematical models of the system that are suitable for studying dynamics and stability. Analytical treatments are introduced wherever possible to provide a means for verification purposes. The linear and nonlinear stability of flexible shafts supported on finite length journal bearings is studied. As linear models are not suitable for bifurcation analysis, a simple yet versatile nonlinear rotor-bearing model is proposed such that the journal force is represented by first and higher order dynamic coefficients. Results show that the implementation of nonlinear coefficients can enable the application of nonlinear analysis methods. Nonlinear stability analysis is carried out by implementing a variety of techniques including the Hopf bifurcation theorem and eigenvalue analysis of the Monodromy matrices. The versatility of the techniques used made it possible to study the existence and directions of Hopf bifurcations for rotors supported on finite length journal bearings.
Hastings-Levitov aggregation in the small-particle limit
Creators: name: Norris, James
name: Turner, Amanda
Publisher: name: arXiv
Year: 2011
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 60F17

description: We establish some scaling limits for a model of planar aggregation. The model is described by the composition of a sequence of independent and identically distributed random conformal maps, each corresponding to the addition of one particle. We study the limit of small particle size and rapid aggregation. The process of growing clusters converges, in the sense of Caratheodory, to an inflating disc. A more refined analysis reveals, within the cluster, a tree structure of branching fingers, whose radial component increases deterministically with time. The arguments of any finite sample of fingers, tracked inwards, perform coalescing Brownian motions. The arguments of any finite sample of gaps between the fingers, tracked outwards, also perform coalescing Brownian motions. These properties are closely related to the evolution of harmonic measure on the boundary of the cluster, which is shown to converge to the Brownian web.
description: 39 pages, 4 figures
Additional file 20 of Single-colony sequencing reveals microbe-by-microbiome phylosymbiosis between the cyanobacterium Microcystis and its associated bacteria
Creators: name: Pérez-Carrascal, Olga M.
name: Tromas, Nicolas
name: Terrat, Yves
name: Moreno, Elisa
name: Giani, Alessandra
name: Corrêa Braga Marques, Laisa
name: Fortin, Nathalie
name: Shapiro, B. Jesse
Publisher: name: figshare
Year: 2021
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics

description: Additional file 19: Table S15. Colonies sequenced per each sampling time point.
Additional file 2 of Single-colony sequencing reveals microbe-by-microbiome phylosymbiosis between the cyanobacterium Microcystis and its associated bacteria
Creators: name: Pérez-Carrascal, Olga M.
name: Tromas, Nicolas
name: Terrat, Yves
name: Moreno, Elisa
name: Giani, Alessandra
name: Corrêa Braga Marques, Laisa
name: Fortin, Nathalie
name: Shapiro, B. Jesse
Publisher: name: figshare
Year: 2021
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics

description: Additional file 1. Supplementary methods. DNA extraction colonies.
Quantum oscillations in antiferromagnetic conductors with small carrier pockets
Creators: name: Ramazashvili, Revaz
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: I study magnetic quantum oscillations in antiferromagnetic conductors with small carrier pockets and show that combining the oscillation data with symmetry arguments and with the knowledge of the possible positions of the band extrema may allow us to greatly constrain or even uniquely determine the location of a detected carrier pocket in the Brillouin zone.
description: printed version: 4 pages, 3 figures
Uniqueness and the event : rethinking the horizonal in Martin Heidegger's Contributions to philosophy (of the event)
Creators: name: Hanasyk, Matthew
Publisher: name: University of British Columbia
Year: 2017

description: This thesis explores the idea of uniqueness in Martin Heidegger’s Contributions to Philosophy (Of the Event). Written between 1936 and 1938, Contributions is an in-depth account of what Heidegger calls the event of appropriation [Ereignis]. It is written as a critique of the history of philosophy and a call to think this history from out of another beginning, which it attempts to sketch out in terms of what Heidegger calls beyng-historical thinking. This thesis focuses on the uniqueness of the event by focusing on what it means for the unique to emerge historically. This thesis challenges other scholarly research on the text by placing the idea of uniqueness within the context of its own horizon. Previously, the horizonal, as a concept, was inextricably bound to the concept of transcendence that Heidegger abandons as beholden to the metaphysical way of thinking in which he distances himself. This thesis attempts to show that the horizonal is in fact rethought in Contributions in terms of the unique. As a result, this thesis challenges the idea that only transcendence can be thought horizonally. This thesis focuses primarily on the chapter in Contributions titled, The Grounding. This thesis is itself divided into three chapters: Da-sein, Selfhood, Imagination; The Essence of Truth and the Simplicity of the Unique; Time-space and the Persistence of Fathoming. Each of these chapters focuses primarily on one or more of the subsections within the chapter of Contributions mentioned above. I argue that the uniqueness of the event can be thought of in terms of the separation between the horizon of uniqueness and the uniqueness of the horizon that opens up within uniqueness itself with respect to the grounding of Da-sein, or “there-being,” in its self-assignment to the event. It is the persistence of fathoming the simplicity of this uniqueness in the appropriation of the truth of beyng that opens up the time-space of the event for the coming to presence of the historical moment. Furthermore, I explore the possibility that uniqueness holds for giving a positive account of nothingness, which is an imperative expressed by Heidegger himself within the text.
Additional file 5 of Single-colony sequencing reveals microbe-by-microbiome phylosymbiosis between the cyanobacterium Microcystis and its associated bacteria
Creators: name: Pérez-Carrascal, Olga M.
name: Tromas, Nicolas
name: Terrat, Yves
name: Moreno, Elisa
name: Giani, Alessandra
name: Corrêa Braga Marques, Laisa
name: Fortin, Nathalie
name: Shapiro, B. Jesse
Publisher: name: figshare
Year: 2021
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics

description: Additional file 4. Supplementary figures.
Superflow of resonantly driven polaritons against a defect
Creators: name: Cancellieri, E.
name: Marchetti, F. M.
name: Szymanska, M. H.
name: Tejedor, C.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: In the linear response approximation, coherently driven microcavity polaritons in the pump-only configuration are expected to satisfy the Landau criterion for superfluidity at either strong enough pump powers or small flow velocities. Here, we solve non-perturbatively the time dependent Gross-Pitaevskii equation describing the resonantly-driven polariton system. We show that, even in the limit of asymptotically large densities, where in linear response approximation the system satisfies the Landau criterion, the fluid always experiences a residual drag force when flowing through the defect. We illustrate the result in terms of the polariton lifetime being finite, finding that the equilibrium limit of zero drag can only be recovered in the case of perfect microcavities. In general, both the drag force exerted by the defect on the fluid, as well as the height of Cerenkov radiation, and the percentage of particles scattered by the defect, show a smooth crossover rather than a sharp threshold-like behaviour typical of superfluids which obey the Landau criterion.
description: 8 pages, 6 figures (published version)
Motion of position-dependent mass as a damping-antidamping process: Application to the Fermi gas and to the Morse potential
Creators: name: Hamdouni, Yamen
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The object of this paper is to investigate, classically and quantum mechanically, the relation existing between the position-dependent effective mass and damping-antidamping dynamics. The quantization of the equations of motion is carried out using the geometric interpretation of the motion, and we compare it with the one based on the ordering ambiguity scheme. Furthermore, we apply the obtained results to a Fermi gas of damped-antidamped particles, and we solve the Schrödinger equation for an exponentially increasing (decreasing) mass in the presence of the Morse potential.
description: Preprint, 24 pages, 2 figures. We now derive the correct condition that should be satisfied by the derivative of the wave function at the discontinuity point and show that the reflexion coefficient is independent of $\eta$. Figure 1 and the corresponding discussion have been removed. Two references added. To be published in Journal of Physics A: Mathematical and Theoretical
Additional file 1 of Analyzing the demographic, spatial, and temporal factors influencing social contact patterns in U.S. and implications for infectious disease spread
Creators: name: Dorélien, Audrey M.
name: Ramen, Aparna
name: Swanson, Isabella
name: Hill, Rachelle
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Neuroscience
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1: Figure S1. Average duration (in minutes) of social contact at work by occupation code 2010-2018.
Shear-driven instabilities in Hall-MHD plasmas
Creators: name: Bejarano, Cecilia
name: Gómez, Daniel
name: Brandenburg, Axel
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Fluid Dynamics (physics.flu-dyn)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The large-scale dynamics of plasmas is well described within the framework of magnetohydrodynamics (MHD). However, whenever the ion density of the plasma becomes sufficiently low, the Hall effect is likely to become important. The role of the Hall effect has been studied in several astrophysical plasma processes, such as magnetic reconnection, magnetic dynamo, MHD turbulence or MHD instabilities. In particular, the development of small-scale instabilities is essential to understand the transport properties in a number of astrophysical plasmas. The magneto-rotational instability, which takes place in differentially rotating accretion disks embedded in relatively weak magnetic fields, is just one example. The influence of the large-scale velocity flows on small-scale instabilities is often approximated by a linear shear flow. In this paper we quantitatively study the role of the Hall effect on plasmas embedded in large-scale shear flows. More precisely, we show that a new instability develops as long as the Hall effect is present, which we therefore term as the Hall magneto-shear instability. As a particular case, we recover the so-called magneto-rotational instability and quantitatively assess the role of the Hall effect on its development and evolution.
description: 25 pages, 12 figures, version accepted for publication in ApJ
A Double Outburst from IGR J00291+5934: Implications for Accretion Disk Instability Theory
Creators: name: Hartman, Jacob M.
name: Galloway, Duncan K.
name: Chakrabarty, Deepto
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The accretion-powered millisecond pulsar IGR J00291+5934 underwent two ~10 d long outbursts during 2008, separated by 30 d in quiescence. Such a short quiescent period between outbursts has never been seen before from a neutron star X-ray transient. X-ray pulsations at the 599 Hz spin frequency are detected throughout both outbursts. For the first time, we derive a pulse phase model that connects two outbursts, providing a long baseline for spin frequency measurement. Comparison with the frequency measured during the 2004 outburst of this source gives a spin-down during quiescence of -4(1)x10^-15 Hz/s, approximately an order of magnitude larger than the long-term spin-down observed in the 401 Hz accretion-powered pulsar SAX J1808.4-3658. If this spin-down is due to magnetic dipole radiation, it requires a 2x10^8 G field strength, and its high spin-down luminosity may be detectable with the Fermi Large Area Telescope. Alternatively, this large spin-down could be produced by gravitational wave emission from a fractional mass quadrupole moment of Q/I = 1x10^{-9}. The rapid succession of the outbursts also provides a unique test of models for accretion in low-mass X-ray binaries. Disk instability models generally predict that an outburst will leave the accretion disk too depleted to fuel a second outburst after such a brief quiescence. We suggest a modification in which the outburst is shut off by the onset of a propeller effect before the disk is depleted. This model can explain the short quiescence and the unusually slow rise of the light curve of the second 2008 outburst.
description: 17 pages, 8 figures; accepted by ApJ
Effect of annealing on the specific heat of Ba(Fe1-xCox)2As2
Creators: name: Gofryk, K.
name: Vorontsov, A. B.
name: Vekhter, I.
name: Sefat, A. S.
name: Imai, T.
name: Bauer, E. D.
name: Thompson, J. D.
name: Ronning, F.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We report on the effect of annealing on the temperature and field dependencies of the low temperature specific heat of the electron-doped Ba(Fe$_{1-x}$Co$_{x}$)$_{2}$As$_{2}$ for under-(x = 0.045), optimal- (x = 0.08) and over-doped (x = 0.105 and 0.14) regimes. We observed that annealing significantly improves some superconducting characteristics in Ba(Fe$_{1-x}$Co$_{x}$)$_{2}$As$_{2}$. It considerably increases $T_{c}$, decreases $γ_{0}$ in the superconducting state and suppresses the Schottky-like contribution at very low temperatures. The improved sample quality allows for a better identification of the superconducting gap structure of these materials. We examine the effects of doping and annealing within a self-consistent framework for an extended s-wave pairing scenario. At optimal doping our data indicates the sample is fully gapped, while for both under and overdoped samples significant low-energy excitations possibly consistent with a nodal structure remain. The difference of sample quality offers a natural explanation for the variation in low temperature power laws observed by many techniques.
description: 9 pages: added references, two figures and supplementary information; Accepted to Physical Review B (Jan 10, 2010)
Additional file 2 of Analyzing the demographic, spatial, and temporal factors influencing social contact patterns in U.S. and implications for infectious disease spread
Creators: name: Dorélien, Audrey M.
name: Ramen, Aparna
name: Swanson, Isabella
name: Hill, Rachelle
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Neuroscience
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 2. Table S1. Average Duration (in minutes) of Social Contact at Work by Occupation Code 2010-2018 Created by Audrey Dorélien (dorelien@umn.edu) based on ATUS data.
Holographic Scalar Fields Models of Dark Energy
Creators: name: Sheykhi, Ahmad
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Physics (physics.gen-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Many theoretical attempts toward reconstructing the potential and dynamics of the scalar fields have been done in the literature by establishing a connection between holographic/agegraphic energy density and a scalar field model of dark energy. However, in most of these cases the analytical form of the potentials in terms of the scalar field have not been reconstructed due to the complexity of the equations involved. In this paper, by taking Hubble radius as system's IR cutoff, we are able to reconstruct the analytical form of the potentials as a function of scalar field, namely $V=V(ϕ)$ as well as the dynamics of the scalar fields as a function of time, namely $ϕ=ϕ(t)$ by establishing the correspondence between holographic energy density and quintessence, tachyon, K-essence and dilaton energy density in a flat FRW universe. The reconstructed potentials are quite reasonable and have scaling solutions. Our study further supports the viability of the holographic dark energy model with Hubble radius as IR cutoff.
description: 6 pages, accepted by Phys. Rev. D
Comparative U, Np and Pu M edge high energy resolution X-ray absorption spectroscopy (HR-XANES) investigations of model and genuine active waste glass
Creators: name: Bahl, S.
name: Koldeisz, V.
name: Bohnert, E.
name: Gonzalez-Robles, E.
name: Schild, D.
name: Kienzler, B.
name: Kvashnina, K.O.
name: Rothe, J.
name: Dardenne, K.
name: Boshoven, J.
name: Martel, L.
name: Pidchenko, I.
name: Prüssmann, T.
name: Roth, G.
name: Geckeis, H.
name: Vitova, T.
Publisher: name: Karlsruhe
Year: 2015

description: Understanding the long term behavior of vitrified nuclear waste requires a full and detailed characterization of the materials including their characteristics as synthesized and after exposure to groundwater. Genuine radioactive waste glass has a complex chemical composition. Therefore we take a simplified approach by investigating and comparing the oxidation states of U, Pu and Np in high level waste (HLW) glass sampled from the VEK vitrification process (VEK glass) and in model glasses. The model glasses doped with U and Pu have the same borosilicate glass frit composition as the VEK glass, whereas the model glass doped with Np has a base glass composition (R7T7) typically used for vitrification of HLW in France. U/Pu/Np M4/M5 edge high energy resolution X-ray absorption near edge structure (HR-XANES) spectroscopy technique [1] is applied to characterize the An oxidation states in model and genuine VEK HLW glass. The HR-XANES analyses suggest predominant existence of U(VI) and Pu(IV) in the HLW and the model glasses as expected from the oxidative vitrification conditions. Weak changes in U oxidation state as a function of the U loading (1.2 – 5 wt% UO2) are discussed on the basis of U M4 edge HR-XANES and X-ray photoelectron spectroscopy (XPS) results. One significant difference found between the model and the genuine HLW glasses is the strong radiation damage induced in the HLW glass by the soft X-ray beam (position of the U M4 edge: 3.73 keV) which was not observed for the U doped model glasses and the previous L3 edge investigations of the HLW glass sample. The dominant U(VI) oxidation state is reduced almost by 50% to U(IV) within 5 h of measurement. The complex chemical composition of the HLW glass leads to different local U atomic environments compared to the model glass as found by EXAFS investigations. EXAFS results confirm that U in the HLW glass is coordinated by Al/Si neighbors in the second coordination sphere, whereas no neighboring atoms are observed at this distance for the model glass. Differences in results obtained for the Np oxidation state for Np doped asprepared and leached R7T7 borosilicate model glasses and the HLW glass will be presented and discussed.
Additional file 5 of Analyzing the demographic, spatial, and temporal factors influencing social contact patterns in U.S. and implications for infectious disease spread
Creators: name: Dorélien, Audrey M.
name: Ramen, Aparna
name: Swanson, Isabella
name: Hill, Rachelle
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Neuroscience
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 5. Text S1. O*NET Data and Methods.