cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Scalar scattering from black holes with tidal charge
Creators: name: de Oliveira, Ednilton S.
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The cross sections of black holes with tidal charge predicted in the context of the Randall--Sundrum brane-world scenario are computed considering the massless scalar field. Results obtained for black holes with different tidal-charge intensities are compared in order to study how this charge modifies the black hole cross sections. Such results are also compared with the ones for Schwarzschild and extreme Reissner--Nordström black holes. The increase of the tidal-charge intensity makes the black hole absorb more and can also be measured by the narrowing of interference fringes of the differential scattering cross section. These results indicate that the effects of the tidal charge are very important in phenomena which take place near the black hole, but can be neglected in the far region. Analytical results are obtained in the high-frequency limit and are shown to excellently agree with the numeric results obtained via the partial-wave method. It is shown numerically that black holes with tidal charge obey the universality of the low-frequency absorption cross section of stationary black holes for the massless scalar field.
The first catalog of Fermi-LAT sources below 100 MeV
Creators: name: Principe, Giacomo
name: Malyshev, Dmitry
name: Ballet, Jean
name: Funk, Stefan
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We present the first Fermi Large Area Telescope (LAT) low energy catalog (1FLE) of sources detected in the energy range 30 - 100 MeV. The COMPTEL telescope detected sources below 30 MeV, while catalogs released by the Fermi-LAT and EGRET collaborations use energies above 100 MeV. We create a list of sources detected in the energy range between 30 and 100 MeV, which closes a gap of point source analysis between the COMPTEL catalog and the Fermi-LAT catalogs. One of the main challenges in the analysis of point sources is the construction of the background diffuse emission model. In our analysis, we use a background-independent method to search for point-like sources based on a wavelet transform implemented in the PGWave code. The 1FLE contains 198 sources detected above 3 $σ$ significance with eight years and nine months of the Fermi-LAT data. For 187 sources in the 1FLE catalog we have found an association in the Fermi-LAT 3FGL catalog: 148 are extragalactic, 22 are Galactic, and 17 are unclassified in the 3FGL. The ratio of the number of flat spectrum radio quasars (FSRQ) to BL Lacertae (BL Lacs) in 1FLE is 3 to 1, which can be compared with an approximately 1 to 1 ratio for the 3FGL or a 1 to 6 ratio for 3FHL. The higher ratio of the FSRQs in the 1FLE is expected due to generally softer spectra of FSRQs relative to BL Lacs. Most BL Lacs in 1FLE are of low-synchrotron peaked blazar type (18 out of 31), which have softer spectra and higher redshifts than BL Lacs on average. Correspondingly, we find that the average redshift of the BL Lacs in 1FLE is higher than in 3FGL or 3FHL. There are 11 sources that do not have associations in the 3FGL. Most of the unassociated sources either come from regions of bright diffuse emission or have several known 3FGL sources in the vicinity, which can lead to source confusion. The remaining unassociated sources have significance less than 4 $σ$.
description: Accepted by A&A on June 12, 2018. 19 pages, 23 figures
Compensatory Connection: Examining the Buffering Role of Romantic Connection on Social Disconnection and Well-Being During COVID-19
Creators: name: Balzarini, Rhonda Nicole
name: Brand, Daisi R.
name: Zoppolat, Giulia
name: Slatcher, Richard B.
Publisher: name: OSF Registries
Year: 2024
Subjects: subject: Social and Behavioral Sciences

description: In this study, we aim to test whether higher levels of social disconnection are associated with lower levels of individual well-being at the beginning of the COVID-19 pandemic. Additionally, we are testing whether this association is moderated or influenced by higher levels of perceived connection with a romantic partner. Finally, we are testing whether the interaction between social disconnection and perceived connection with a partner might impact change in well-being over time by examining individual well-being at a subsequent timepoint. This preregistration is being made after data collection has concluded.
Seismic response and analysis of earth dams
Creators: name: Pelecanos, Loizos
Publisher: name: Imperial College London
Year: 2013

description: Many earth dams around the world are located in zones characterised by moderate to high seismicity. Their seismic stability can be particularly critical for the safety of the areas in the downstream side and therefore an in depth understanding of their response during earthquakes is required. This thesis describes a numerical study related to both the seismic response and analysis of earth dams using the finite element method. In the first part of the thesis, the effect of the upstream reservoir hydrodynamic pressures on the elastic seismic response of dams is explored. Firstly, a methodology is proposed in which the reservoir domain is modelled with finite elements focusing in particular on the accurate prediction of the hydrodynamic pressures on the upstream dam face. Secondly, a parametric study of dam-reservoir interaction is carried out to examine the effect of the reservoir on the seismic response of dams. The second part of the thesis is concerned with the nonlinear seismic behaviour of earth dams. Firstly, a well-documented case study, the La Villita dam in Mexico, is analysed in order to validate the numerical model and a good agreement is obtained between the recorded and predicted data. Subsequently, using as a reference the calibrated model, parametric studies are performed in order to obtain a better insight into the dynamic response and analysis of earth dams. The latter studies provide a means to assess the effect of different modelling considerations on the seismic analysis of dams.
Scratch Card Gambling Risks and Harms in Comparison to Other Forms of Gambling: A Scoping Review Protocol
Creators: name: Clark, Luke
name: Martin, Marshall
name: Hin-Ngai Fu
Publisher: name: OSF Registries
Year: 2024
Subjects: subject: Medicine and Health Sciences
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology
subject: Gambling
subject: Gambling Harm
subject: Gambling Risk
subject: Problem Gambling
subject: Scoping Review

description: This registration consists of a protocol for a scoping review which aims to summarize the current literature and identify research gaps regarding the risks and harms of scratch card gambling compared to other forms of gambling. This review's goal is to create a narrative synthesis that will act as a comprehensive outline for what is currently known about the relative risks and harms of scratch cards in comparison to other forms of gambling.
Asynchronous sigma delta modulators for data conversion
Creators: name: Chen, Wei
Publisher: name: Imperial College London
Year: 2013

description: The research carried out in this thesis focuses on introducing solutions to solve issues existed in asynchronous sigma delta modulators including complex decoding scheme, lacking of noise shaping and effects of limit cycle components. These issues significantly limit the implementation of ASDMs in data conversion. The first innovation in this work is the introduction of a novel decoding circuit to digitise the output signal of the asynchronous sigma delta modulator. Compared with the conventional decoding schemes, the proposed one does not limit the input dynamic range of ASDMs, and can obtain a high resolution without a fast sample clock. The proposed decoding circuit operates asynchronously and can measure the duty cycle of the modulated square wave without measuring its instantaneous period. The second innovation of this work is the introduction of a novel architecture of the asynchronous sigma delta modulator with noise shaping without an additional loop filter. Moreover, the proposed modulator requires only a single-bit digital-to-time converter in the feedback loop even for a multi-bit quantiser. The quantiser in the modulator is realized by an eight-phase poly-phase sampler in order to reduce the requirement of the sample clock. Simulation demonstrate that the SNDR of the proposed modulator can be improved by 20dB. The final innovation of this work is the introduction of frequency compensation to the asynchronous sigma delta modulator. In this proposed modulator, the limit cycle frequency is controlled by the delay time of a novel high linear performance delay line, which is operated in current mode. The compensation is realized by adjusting the equivalent delay time for different input voltage values. The proposed one can double the signal bandwidth with the same limit cycle frequency.
Some effects of galaxy structure and dynamics on the Fundamental Plane. II. A Virgo-Fornax distance modulus
Creators: name: Graham, Alister W.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The influence of broken structural homology, and the implied broken dynamical homology, is examined for the Fundamental Plane (FP). A bisector method of linear regression was applied, in 3-dimensions, to derive the best FP and a bootstrapping procedure has been used to estimate the associated uncertainties. For 25 E and S0 Virgo galaxies, the `standard' FP, constructed using R^{1/4} model parameters for the effective radii (R_{e,4}) and the mean surface brightness within this radius (Sigma_{e,4}) and using central velocity dispersion measurements (sigma_0), gave a relation described by R_{e,4}~sigma_{0}^{1.10+/-0.14}Sigma_{e,4}^{-0.55+/-0.09}. Using Sersic R^{1/n} light profile model parameters and the computed velocity dispersion within an aperture of infinite radius (sigma_{tot,n}) gave an `improved' FP described by the relation R_{e,n}~sigma_{tot,n}^{1.37+/-0.16}Sigma_{e,n}^{-0.76+/-0.05}. Upon removal of the known S0 galaxies from the sample, the above planes were observed to change to R_{e,4}~sigma_{0}^{1.19+/-0.21}Sigma_{e,4}^{-0.60+/-0.11} and R_{e,n}~sigma_{tot,n}^{1.72+/-0.24}Sigma_{e,n}^{-0.74+/-0.09}. The perpendicular rms residuals about these planes are 0.084 and 0.050 dex, respectively. A similar analysis of the Fornax cluster produced a FP given by the relation R_{e,n}~sigma_{tot,n}^{2.03+/-0.78}Sigma_{e,n}^{-1.07+/-0.30}, in tantalizing agreement with the plane expected from the virial theorem, but with discouragingly large errors due to the small sample size of only 7. Similarly to Virgo, the perpendicular rms residuals about this plane is 0.050 dex. A Virgo-Fornax distance modulus was computed using Working-Hotelling confidence bands. The `standard' FP parameters gave a value of 0.45+/-0.16 mag, where as the `improved' FP parameters gave a value of 0.25+/-0.12 mag.
description: To be published in MNRAS. 13 pages. Also available from http://msowww.anu.edu.au/~ali/Preprints/fp2.html see also astro-ph/9701020 (Paper I)
A Class III Cultural Resources Inventory of the Proposed Underground Test Area ER-EC-15 Well Pad and Access Road, Range EC South, Nevada Test and Training Range, Nye County, Nevada
Creators: name: Jones, Robert C.
Publisher: name: Desert Research Institute
Year: 2010
Subjects: Clark (County)
United States of America (Country)
Las Vegas, Nevada
Nevada (State / Territory)
Nye (County)
Nellis Air Force Base, Nevada
26NY8111
Archaeological Overview
Reconnaissance / Survey
Site Evaluation / Testing

description: The Desert Research Institute (DRI) received a request from the U.S. Department of Energy (DOE), National Nuclear Security Administration Nevada Site Office (NNSA/NSO) to conduct a Class III cultural resources inventory of the proposed Underground Test Area EREC- 15 Well Pad and Access Road, Range EC South, Nevada Test and Training Range (NTTR), Nye County, Nevada (Figures 1-2). On November 16, 2009, DRI archaeologists and the American Indian Coordinator surveyed the proposed well pad and access road and found eight isolated artifacts. DRI recommends that the project proceed as planned as long as all activities remain within the surveyed area.
Dual expansions of N=4 super Yang-Mills theory via IIB superstring theory
Creators: name: Chalmers, Gordon
name: Erdmenger, Johanna
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We examine the dual correspondence between holographic IIB superstring theory and N=4 super Yang-Mills theory at finite values of the coupling constants. In particular we analyze a field theory strong-coupling expansion which is the S-dual of the planar expansion. This expansion arises naturally as the AdS/CFT dual of the IIB superstring scattering amplitudes given a genus truncation property due to modular invariance. The space-time structure of the contributions to the field theory four-point correlation functions obtained from the IIB scattering elements is investigated in the example of the product of four conserved stress tensors, and is expressed as an infinite sum of field theory triangle integrals. The OPE structure of these contributions to the stress tensor four-point function is analyzed and shown not to give rise to any poles. Quantization of the string in the background of a five-form field strength is performed through a covariantized background field approach, and relations to the N=4 topological string are found.
description: LaTeX, 40 pages, 5 figures
Montesauria seicerci Mironov, Literak, Hung & Capek 2012
Creators: name: LIU, DONG
name: YI, TIAN-CI
name: XU, YUN
name: ZHANG, ZHI-QIANG
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Acari
Proctophyllodidae
Montesauria
Montesauria seicerci

description: Montesauria seicerci Mironov, Literak, Hung & Capek, 2012: 22
— Holotype male (ZISP 4766), from Seicercus valentini (Hartert) (Phylloscopidae), Ninh Binh, Cuc Phuong National Park, Vietnam (20°21'N 105°35'E).
description: Published as part of LIU, DONG, YI, TIAN-CI, XU, YUN & ZHANG, ZHI-QIANG, 2013, Hotspots of new species discovery: new mite species described during 2007 to 2012, pp. 1-102 in Zootaxa 3663 (1) on page 81, DOI: 10.11646/zootaxa.3663.1.1, http://zenodo.org/record/5630595
Prepotentials of $N=2$ Supersymmetric Gauge Theories and Soliton Equations
Creators: name: Eguchi, Tohru
name: Yang, Sung-Kil
Publisher: name: arXiv
Year: 1995
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Using recently proposed soliton equations we derive a basic identity for the scaling violation of $N=2$ supersymmetric gauge theories $\sum_i a_i\partial F/\partial a_i-2F=8 πi b_1 u$. Here $F$ is the prepotential, $a_i$'s are the expectation values of the scalar fields in the vector multiplet, $u=1/2\, {\rm Tr}\, \langleϕ^2\rangle$ and $b_1$ is the coefficient of the one-loop $β$-function. This equation holds in the Coulomb branch of all $N=2$ supersymmetric gauge theories coupled with massless matter.
description: 10 pages, latex, no figures, a reference added
The magnetocaloric effect at a first order phase transition
Creators: name: Bratko, Milan
Publisher: name: Imperial College London
Year: 2013

description: The magnetocaloric effect (MCE) can be defined as the isothermal entropy change (or adiabatic temperature change) of a material upon application/removal of an external magnetic field and is the key physics for a magnetic cooling device. A discontinuity of entropy at a first order phase transition (FOPT) allows for a large entropy change to be induced by a relatively small field. However, a hysteresis is necessarily associated with a FOPT. The effects of hysteresis, as measured in a sensitive microcalorimeter, are the focus of the thesis. The calorimetric setup used is unique in allowing a separate measurement of heat capacity and latent heat and thereby the possibility to clearly distinguish the first and higher order contributions to MCE. Due to the high measurement fidelity required, the experimental chapter is a core component of the thesis and includes a thorough analysis of the measurement errors associated with the microcalorimeter. Several improvements are proposed to improve precision and accuracy of the measurement in future studies. The first of the hysteresis effects is a spurious ‘colossal’ MCE. Its indirect observation was claimed in 2004 from magnetisation measurements analysed using a Maxwell relation and was widely disputed thereafter. It was shown that a different measurement protocol leads to non ‘colossal’ MCE. This thesis investigates whether the ‘colossal’ MCE can be achieved by a particular magnetisation history by reproducing the original measurement protocol in a more direct calorimetric measurement. It is shown that the ‘colossal’ MCE is just an artefact of the use of Maxwell relation in a non-equilibrium process. The final chapter discusses a second effect of hysteresis: a subtle difference between the indirect and calorimetric measurements of MCE that can be clearly observed when comparing measurements on field application and removal. Maxwell relation leads to an artefact related to temperature dependence of the hysteresis. In the calorimetric measurement the dissipation of magnetic work in a hysteretic magnetisation cycle is observed.
EUV Sunspot Plumes Observed with SOHO
Creators: name: Maltby, P.
name: Brynildsen, N.
name: Brekke, P.
name: Haugan, S. V. H.
name: Kjeldseth-Moe, O.
name: Wikstøl, Ø.
name: Rimmele, T.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Bright EUV sunspot plumes have been observed in five out of nine sunspot regions with the Coronal Diagnostic Spectrometer -- CDS on SOHO. In the other four regions the brightest line emissions may appear inside the sunspot but are mainly concentrated in small regions outside the sunspot areas. These results are in contrast to those obtained during the Solar Maximum Mission, but are compatible with the Skylab mission results. The present observations show that sunspot plumes are formed in the upper part of the transition region, occur both in magnetic unipolar-- and bipolar regions, and may extend from the umbra into the penumbra.
description: 8 pages, 3 figures, to be published in ApJ Letters
Simulating dynamic quantum phase transitions in photonic quantum walks
Creators: name: Wang, Kunkun
name: Qiu, Xingze
name: Xiao, Lei
name: Zhan, Xiang
name: Bian, Zhihao
name: Yi, Wei
name: Xue, Peng
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Signaled by non-analyticities in the time evolution of physical observables, dynamic quantum phase transitions (DQPTs) emerge in quench dynamics of topological systems and possess an interesting geometric origin captured by dynamic topological order parameters (DTOPs). In this work, we report the experimental study of DQPTs using discrete-time quantum walks of single photons. We simulate quench dynamics between distinct Floquet topological phases using quantum-walk dynamics, and experimentally characterize DQPTs and the underlying DTOPs through interference-based measurements. The versatile photonic quantum-walk platform further allows us to experimentally investigate DQPTs for mixed states and in parity-time-symmetric non-unitary dynamics for the first time. Our experiment directly confirms the relation between DQPTs and DTOPs in quench dynamics of a topological system, and opens up the avenue of simulating emergent topological phenomena using discrete-time quantum-walk dynamics.
description: 13 pages, 8 figures
Theoretical extensions and applications of high frequency homogenization on photonics, phononics and platonics
Creators: name: Antonakakis, Tryfon
Publisher: name: Imperial College London
Year: 2013

description: In the context of acoustics, single polarization electromagnetism and elastic plates we consider microstructured media that have an underlying periodic structure and we develop an asymptotic continuum model that captures the essential microstructural behaviour entirely in a macroscale setting. The asymptotics are based upon a two-scale approach and are valid even at high frequencies when the wavelength and microscale length are of the same order. The general theory is illustrated via one- and two-dimensional model problems that can have zero-frequency stop bands that preclude conventional averaging and homogenization theories. Localized defect modes created by material or shape variations are also modelled using the theory and compared to numerical simulations.
Reachability Analysis for Robustness Evaluation of the Sit-To-Stand Movement for Powered Lower Limb Orthoses
Creators: name: Narvaez-Aroche, Octavio
name: Meyer, Pierre-Jean
name: Arcak, Murat
name: Packard, Andrew
Publisher: name: arXiv
Year: 2018
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: A sensitivity-based approach for computing over-approximations of reachable sets, in the presence of constant parameter uncertainties and a single initial state, is used to analyze a three-link planar robot modeling a Powered Lower Limb Orthosis and its user. Given the nature of the mappings relating the state and parameters of the system with the inputs, and outputs describing the trajectories of its Center of Mass, reachable sets for their respective spaces can be obtained relying on the sensitivities of the nonlinear closed-loop dynamics in the state space. These over-approximations are used to evaluate the worst-case performances of a finite time horizon linear-quadratic regulator (LQR) for controlling the ascending phase of the Sit-To-Stand movement.
description: 14 pages, 19 figures, DSCC 2018 Submission
The Fatigue and Fracture Properties of Nano-modified Epoxy Polymers
Creators: name: Lee, Seung Hwan
Publisher: name: Imperial College London
Year: 2013

description: The present Thesis investigates the quasi-static and cyclic-fatigue properties of nano-modified epoxy polymers. A diglycidyl ether of bisphenol-A was used as the base epoxy and polymer-based materials, block copolymers and core-shell rubber particles were used as the toughening agents. The morphologies formed by the tougheners were determined and the associated fracture and fatigue properties, including the toughening mechanisms, were investigated. The modified epoxy polymers with some of the best properties are described below. The unmodified epoxy polymer had a fracture energy, GIc, of 494 J/m2 and this was increased to 2380 J/m2, when 10 wt.% of a polyurethane toughener was employed. This modified epoxy polymer possessed a second-phase morphology, which was a nano-sized ‘worm-like’ structure. This nano-phase debonded from the epoxy, which enabled plastic void growth to occur in the epoxy polymer. This mechanism also led to an increase in the cyclic-fatigue threshold fracture energy, Gth, from 153 J/m2 of the unmodified epoxy to 444 J/m2. Nano-sized core-shell rubber particles (either 100 nm or 200 nm nominal diameters) were employed and they formed a well dispersed rubbery particulate phase. A maximum fracture energy of 2540 J/m2 was observed and the particles were found to undergo internal cavitation that induced plastic void growth. However, only the relatively large particles were able to cavitate under the cyclic-fatigue loading. Hence only these type of particles led to a meaningful increase in the fatigue threshold, Gth. ‘Hybrid’ epoxy polymers contained a polymer based toughener and core-shell rubber particles. Several of these hybrid formulations gave very significant improvements in both values of GIc and Gth. For example, one based upon a polyurethane and styrenebutadiene-core/functionalised polymethylmethacrylate-shell particles gave a value of 2570 J/m2 and 438 J/m2 for GIc and Gth, respectively.
Effect of skill-based educational training for ambulance personnel on neonatal transport for newborn care in coastal south India – a single arm intervention study
Creators: name: Shantharam Baliga B
name: Kamath, Sowmini Padmanabh
name: Holla, Ramesh
name: Subhodh Shetty S
name: Lewis, Leslie
name: Harsha P Lashkari
name: M, Suchitra Shenoy
name: Kalyan, Santosh
Publisher: name: OSF Registries
Year: 2024
Subjects: subject: Medicine and Health Sciences
subject: Life Sciences

description: Single arm intervention study (pre vs post)
A component of superconnection of 11-dimensional curved superspace at second order in anticommuting coordinates
Creators: name: Yuuichirou, Shibusa
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We calculate a component of connection superfields and Lorentz superparameter at second order in anticommuting coordinates in terms of the component fields of 11-dimensional on-shell supergravity by using `Gauge completion'. This configuration of superspace holds the $κ$-symmetry for supermembrane Lagrangian and represents 11-dimensional on-shell supergravity.
description: 12pages,to be published in Prog. Theo. Phys
Additional file 1: of An early increase in endothelial protein C receptor is associated with excess mortality in pneumococcal pneumonia with septic shock in the ICU
Creators: name: Chapelet, Agnès
name: Yohann Foucher
name: Gérard, Nathalie
name: Rousseau, Christophe
name: Zambon, Olivier
name: Bretonnière, Cédric
name: Mira, Jean-Paul
name: Charreau, Béatrice
name: Guitton, Christophe
Publisher: name: figshare
Year: 2018
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Computational Biology

description: The scoring system and the prognostic score at day 2 to predict in-hospital mortality. The scoring system and the multivariate analysis were based on lasso logistic regression. The prognostic score was the sum of the product between the weights and the normalized explicative variables. (DOCX 26 kb)
A graphene transmon operating at 1 T
Creators: name: Kroll, J. G.
name: Uilhoorn, W.
name: van der Enden, K. L.
name: de Jong, D.
name: Watanabe, K.
name: Taniguchi, T.
name: Goswami, S.
name: Cassidy, M. C.
name: Kouwenhoven, L. P.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A superconducting transmon qubit resilient to strong magnetic fields is an important component for proposed topological and hybrid quantum computing (QC) schemes. Transmon qubits consist of a Josephson junction (JJ) shunted by a large capacitance, coupled to a high quality factor superconducting resonator. In conventional transmon devices, the JJ is made from an Al/AlO$_x$/Al tunnel junction which ceases operation above the critical magnetic field of Al, 10 mT. Alternative junction technologies are therefore required to push the operation of these qubits into strong magnetic fields. Graphene JJs are one such candidate due to their high quality, ballistic transport and electrically tunable critical current densities. Importantly the monolayer structure of graphene protects the JJ from orbital interference effects that would otherwise inhibit operation at high magnetic field. Here we report the integration of ballistic graphene JJs into microwave frequency superconducting circuits to create the first graphene transmons. The electric tunability allows the characteristic band dispersion of graphene to be resolved via dispersive microwave spectroscopy. We demonstrate that the device is insensitive to the applied field and perform energy level spectroscopy of the transmon at 1 T, more than an order of magnitude higher than previous studies.
description: attached supplementary material
Spherical microphone array processing for acoustic parameter estimation and signal enhancement
Creators: name: Jarrett, Daniel
Publisher: name: Imperial College London
Year: 2013

description: In many distant speech acquisition scenarios, such as hands-free telephony or teleconferencing, the desired speech signal is corrupted by noise and reverberation. This degrades both the speech quality and intelligibility, making communication difficult or even impossible. Speech enhancement techniques seek to mitigate these effects and extract the desired speech signal. This objective is commonly achieved through the use of microphone arrays, which take advantage of the spatial properties of the sound field in order to reduce noise and reverberation. Spherical microphone arrays, where the microphones are arranged in a spherical configuration, usually mounted on a rigid baffle, are able to analyze the sound field in three dimensions; the captured sound field can then be efficiently described in the spherical harmonic domain (SHD). In this thesis, a number of novel spherical array processing algorithms are proposed, based in the SHD. In order to comprehensively evaluate these algorithms under a variety of conditions, a method is developed for simulating the acoustic impulse responses between a sound source and microphones positioned on a rigid spherical array placed in a reverberant environment. The performance of speech enhancement algorithms can often be improved by taking advantage of additional a priori information, obtained by estimating various acoustic parameters. Methods for estimating two such parameters, the direction of arrival (DOA) of a source (static or moving) and the signal-to-diffuse energy ratio, are introduced. Finally, the signals received by a microphone array can be filtered and summed by a beamformer. A tradeoff beamformer is proposed, which achieves a balance between speech distortion and noise reduction. The beamformer weights depend on the noise statistics, which cannot be directly observed and must be estimated. An estimation algorithm is developed for this purpose, exploiting the DOA estimates previously obtained to differentiate between desired and interfering coherent sources.
Analysis of vibrational normal modes for Coulomb clusters
Creators: name: Ash, Biswarup
name: Dasgupta, Chandan
name: Ghosal, Amit
Publisher: name: arXiv
Year: 2018
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study various properties of the vibrational normal modes for Coulomb-interacting particles in two-dimensional irregular confinement using numerical simulations. By analyzing the participation ratio and spectral statistics, we characterize the vibrational modes for Coulomb clusters as localized, quasi-localized and delocalized. We also study a novel correlation function to understand the spatial structure of these different kinds of modes and subsequently extract the associated characteristic length scales. We further demonstrate that, at any given temperature, particles exhibiting larger displacement over a time interval comparable to the structural relaxation time, are strongly correlated with the low-frequency quasi-localized modes of the inherent structure corresponding to the initial configuration. Establishing this correlation for Coulomb clusters paves the path to identify the particular feature of the initial configuration that determines the previously observed heterogeneous dynamics of the particles at low temperatures in these systems.
description: 13 pages, 10 figures
Trans-Tasman mobilities in and through Aotearoa New Zealand: Extending family, home and work across the Tasman
Creators: name: Faleolo, Ruth
Publisher: name: La Trobe
Year: 2024
Subjects: classificationCode: 451304
subject: Pacific Peoples cultural history
classificationCode: 451813
subject: Pacific Peoples human geography and demography

description: No description supplied.
A Class III Cultural Resources Reconnaissance of the Drill Pad and a Skid Trail for U20as, Pahute Mesa, Nye County, Nevada
Creators: name: Henton, Gregory H.
Year: 1985
Subjects: Clark (County)
United States of America (Country)
Las Vegas, Nevada
Thirsty Canyon
Nevada (State / Territory)
Nye (County)
Nellis Air Force Base, Nevada
Scrugham Peak QUAD 7.5'
Reconnaissance / Survey

description: The Department of Energy wishes to conduct an underground test of a nuclear device at site U20as, 899200N, 559700E, NCS-CZ.
A Cultural Resource Investigation of the Proposed Nevada State Prison Site Near Indian Springs, Clark County, Nevada
Creators: name: Brooks, Richard H.
Publisher: name: Archaeological Research Center, University of Nevada
Year: 1980
Subjects: Clark (County)
Indian Springs Valley
United States of America (Country)
Nevada (State / Territory)
Nellis Air Force Base, Nevada
Archaeological Overview
Records Search / Inventory Checking
Systematic Survey

description: In early April of 1980, the Archaeological Research Center, a Division of the Museum of Natural History, University of Nevada, Las Vegas (UNLV) received a·request from Mr. William Hannocock, State of Nevada, Department of Public Works, to conduct an archaeological survey in the Indian Springs area, Clark County, Nevada. The project area to be surveyed is proposed as the location of a new Nevada State prison. The cost estimate for the archaeological-survey was submitted by the Research Center to Mr. Hanncock at the Public Works Office and the proposal was accepted. The archaeological survey was then assigned Project Number 79-7. The cultural resource survey was undertaken·to determine the possibility of any culturally significant materials in the project location. The survey was designed to inventory any cultural values, historic or prehistoric and, if found, to offer alternative mitigation measures related to their potential significance. There were no significant prehistoric findings and the few scattered waste flakes found did not constitute a site. No diagnostic artifacts or archaeological sites were encountered.
Phonon Fingerprints of CsPb2Br5 Single Crystals
Creators: name: Hadjiev, V. G.
name: Wang, C.
name: Wang, Y.
name: Su, X.
name: Calderon, H. A.
name: Hernandez, F. Robles
name: Wang, Z. M.
name: Bao, J. M.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: CsPb2Br5 is a stable, water-resistant, material derived from CsPbBr3 perovskite and featuring two-dimensional Pb-Br framework separated by Cs layers. Both compounds can coexist at nano- length scale, which often produces conflicting optical spectroscopy results. We present a complete set of polarized Raman spectra of nonluminescent CsPb2Br5 single crystals that reveals the symmetry and frequency of nondegenerate Raman active phonons accessible from the basal (001) plane. The experimental results are in good agreement with density functional perturbation theory simulations, which suggests that the calculated frequencies of yet unobserved double degenerate Raman and infrared phonons are also reliable. Unlike CsPbBr3, the lattice dynamics of CsPb2Br5 is stable as evidenced by the calculated phonon dispersion. The sharp Raman lines and lack of a dynamic- disorder-induced central peak in the spectra at room temperature indicate that the coupling of Cs anharmonic motion to Br atoms, known to cause the dynamic disorder in CsPbBr3, is absent in CsPb2Br5.
description: 5 pages, 4 figures, submitted to Phys. Rev. B on February 8, 2018
The Extended Supersymmetrization of the Multicomponent Kadomtsev--Petviashvilli Hierarchy
Creators: name: Popowicz, Ziemowit
Publisher: name: arXiv
Year: 1995
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We describe three different approaches to the extended (N=2) supersymmetrization of the multicomponent KP hierarchy. In the first one we utilize only superfermions while in the second only superbosons and in the third superbosons as well as superfermions. It is shown that many soliton equations can be embedded in the supersymmetry theory by using the first approach even if we do not change these equations in the bosonic limit of the supersymmetry. In the second or third approach we obtain a generalization of the soliton equations in the bosonic limit which remains in the class of the usual commuting functions. As the byproduct of our analysis we prove that for the first procedure the bosonic part of the one--component supersym\-me\-tric KP hierarchy coincides with the usual classical two--component KP hierarchy.
description: 18 pages
Text to brain: predicting the spatial distribution of neuroimaging observations from text reports
Creators: name: Dockès, Jérôme
name: Wassermann, Demian
name: Poldrack, Russell
name: Suchanek, Fabian
name: Thirion, Bertrand
name: Varoquaux, Gaël
Publisher: name: arXiv
Year: 2018
Subjects: subject: Methodology (stat.ME)
subject: Information Retrieval (cs.IR)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Despite the digital nature of magnetic resonance imaging, the resulting observations are most frequently reported and stored in text documents. There is a trove of information untapped in medical health records, case reports, and medical publications. In this paper, we propose to mine brain medical publications to learn the spatial distribution associated with anatomical terms. The problem is formulated in terms of minimization of a risk on distributions which leads to a least-deviation cost function. An efficient algorithm in the dual then learns the mapping from documents to brain structures. Empirical results using coordinates extracted from the brain-imaging literature show that i) models must adapt to semantic variation in the terms used to describe a given anatomical structure, ii) voxel-wise parameterization leads to higher likelihood of locations reported in unseen documents, iii) least-deviation cost outperforms least-square. As a proof of concept for our method, we use our model of spatial distributions to predict the distribution of specific neurological conditions from text-only reports.
K2 Ultracool Dwarfs Survey. IV. Monster flares observed on the young brown dwarf CFHT-BD-Tau 4
Creators: name: Paudel, Rishi R.
name: Gizis, John E.
name: Mullan, D. J.
name: Schmidt, Sarah J.
name: Burgasser, Adam J.
name: Williams, Peter K. G.
name: Berger, Edo
Publisher: name: arXiv
Year: 2018
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present photometric measurements of two superflares observed on a very young brown dwarf CFHT-BD-Tau 4, observed during Campaign 13 of the \textit{Kepler K2} mission. The stronger of the two superflares brightened by a factor of $\sim$48 relative to the quiescent photospheric level, with an increase in \textit{Kepler} magnitude $Δ\tilde{K_{p}}$ = -4.20. It has an equivalent duration of $\sim$107 hour, a flare duration of 1.7 day, and an estimated total bolometric (ultraviolet/optical/infrared) energy up to 2.1 $\times$ 10$^{38}$ erg. The weaker of the two superflares is a complex (multipeaked) flare with an estimated total bolometric (UV/optical/IR) energy up to 4.7 $\times$ 10$^{36}$ erg. They are the strongest flares observed on any brown dwarf so far. The flare energies are strongly dependent on the value of visual extinction parameter $A_{V}$ used for extinction correction. If we apply a solar flare-model to interpret the two superflares, we find that the magnetic fields are required to be stronger by as much as an order of magnitude than previous reports of field measurements in CFHT-BD-Tau 4 by Reiners et al. (2009b). On the other hand, if we interpret our data in terms of accretion, we find that the requisite rate of accretion for the stronger superflare exceeds the rates which have been reported for other young brown dwarfs.
description: 10 pages, 4 figures, Accepted for publication in ApJ
Coupled Neutronic Thermal Fluid Dynamic Modelling of a Very High Temperature Reactor
Creators: name: Tollit, Brendan S.
Publisher: name: Imperial College London
Year: 2010

description: The Very High Temperature Reactor (VHTR) is designed to push the boundaries and capabilities of existing High Temperature Gas Reactor technology to higher levels, challenging the desired inherent and passive safety features. To ascertain the viability of the design requires a detailed understanding of the complex multiphysics within the reactor core and the associated energy removal system. Due to the scale of the calculation computational numerical models are utilised. During a transient the greatest challenge to inherent and passive safety design features will occur. To understand the core dynamics during these off normal conditions requires the use and development of coupled radiation transport thermal hydraulic codes. In this thesis the coupled radiation transport computational multiphase fluid dynamic FETCH model is applied to a generic block type VHTR. The purpose of this research is twofold. First to analyse the suitability of the FETCH model to be capable of capturing the physics inherent within the generic VHTR of interest. Secondly to analyse the suitability of the generic VHTR to operate within certain key safety constraints of interest. A necessary component of this research was to provide evidence to support the reliability and credibility of model solutions through the use of a continuous verification and validation automated framework. Also this PhD thesis includes the development and analysis of a Sub Grid Scale finite element methodology applied in the context of the multigroup neutron diffusion equations. The method was found to be superior to standard Continuous Galerkin finite element methods but suffered from stability issues associated with low, or zero, absorption coefficient terms.
SHPO: Final Draft 2012 Integrated Cultural Resources Management Plan for Nellis Air Force Base
Creators: name: Spoerer, William
Year: 2015
Subjects: Clark (County)
United States of America (Country)
Las Vegas, Nevada
Nevada (State / Territory)
Nye (County)
Nellis Air Force Base, Nevada
ICRMP

description: SHPO review of the ICRMP with handwritten edits/notes on the report.
Oral history interview with Khachadoor Pilibosian 1969
Publisher: name: Columbia University
Year: 2019
Subjects: Armenian massacres, 1915-1923
Armenians--History--20th century.--Turkey
Armenian Americans

description: Born in Yozgat, Turkey; childhood recollections, father leaves for United States for better opportunity; early signs of planned massacres of Armenians, collecting men and slaughtering, drafting and using for black labor to build railways and roads, burning houses to assure no one left behind, collecting arms; deportation; arriving Malatia; women commit suicide to avoid rape, plundering, Turkish gendarme demand a freedom fee, kidnapped by a Kurd, working as shephard to a Kurdish family, physical and mental abuse, recollections of Kurdish lifestyle, conversions of Armenians into Islam, escape, hears about his father in America, corresponds but father does not believe, asks for proof that he is his son, moves to the United States.
Additional file 14: of Acidic microenvironment plays a key role in human melanoma progression through a sustained exosome mediated transfer of clinically relevant metastatic molecules
Creators: name: Boussadia, Zaira
name: Lamberti, Jessica
name: Mattei, Fabrizio
name: Pizzi, Elisabetta
name: Puglisi, Rossella
name: Zanetti, Cristiana
name: Pasquini, Luca
name: Fratini, Federica
name: Fantozzi, Luca
name: Felicetti, Federica
name: Fecchi, Katia
name: Raggi, Carla
name: Sanchez, Massimo
name: DâAtri, Stefania
name: CarĂ¨, Alessandra
name: Sargiacomo, Massimo
name: Parolini, Isabella
Publisher: name: figshare
Year: 2018
Subjects: subject: Biochemistry
subject: Molecular Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Developmental Biology
subject: Cancer

description: Additional References. (DOCX 17 kb)
The evolution of the V-K colours of single stellar populations
Creators: name: Girardi, Leo
name: Bertelli, Gianpaolo
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We discuss how the integrated V-K colours of single stellar populations evolve with age and metallicity. Some of the uncertainties associated to the properties of the underlying stellar models are throughfully discussed. First, we present the effects that different formulations for the mass-loss rates produce on the initial-final mass relation, and hence on the integrated colours. Second, we describe the colour changes occurring at the onset of the AGB and RGB stars. The onset of the AGB is marked by a colour jump to the red, whose amplitude is highly dependent on the metallicity and mass-loss rates adopted in the models. The overluminosity with respect to the standard Mc-L relation, that occurs in the most massive AGB stars, causes a smoothing of this colour jump. On the other hand, we find that a transient red phase takes place ~1.5x10^8 yr after the RGB develops. We then discuss the possible reasons for the transition of V-K colours (from ~1.5 to 3) that takes place in LMC clusters of SWB type IV. A revision of the ages attributed to the clusters reveals that the transition may not be as fast as originally suggested. A gradual (or delayed) transition of the colours, as predicted by models which include the overluminosity of the most massive AGB stars, describes better the data than the sudden colour-jump predicted by classical models.
description: 19 pages with 14 figures, submitted to MNRAS; some references corrected, main text unchanged
Holographic conformal anomaly with bulk scalars potential from d3 and d5 gauged supergravity
Creators: name: Nojiri, Shin'ichi
name: Odintsov, Sergei D.
name: Ogushi, Sachiko
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: d3 and d5 maximally SUSY gauged supergravity is considered in the parametrization (flow) of full scalar coset where the kinetic term for scalars takes the standard field theory form and the bulk potential is an arbitrary one subject to consistent parametrization. From such SG duals we calculate d2 and d4 holographic conformal anomaly which depends on bulk scalars potential. AdS/CFT correspondence suggests that such SG side conformal anomaly should be identified with (non-perturbative) QFT conformal anomaly (taking account of radiative corrections) for the theory living on the boundary of AdS space. In the limit of constant bulk potential and single scalar, d4 result reproduces the known exact conformal anomaly corresponding to maximally SUSY super Yang-Mills theory coupled to ${\cal N}=4$ conformal supergravity.
description: LaTeX file, 13 pages. minor modifications
Nanodectes formicivorae Mironov 2008
Creators: name: LIU, DONG
name: YI, TIAN-CI
name: XU, YUN
name: ZHANG, ZHI-QIANG
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Acari
Proctophyllodidae
Nanodectes
Nanodectes formicivorae

description: Nanodectes formicivorae Mironov, 2008 in Mironov, Literak & Č apek, 2008: 23
— Holotype male (ZISP, 4414), ex Formicivora rufa (Wied-Neuwied, 1831) (Thamnophilidae), Nova Andradina, Mato Grosso do Sul, Brazil (22°15'S, 53°21'W).
description: Published as part of LIU, DONG, YI, TIAN-CI, XU, YUN & ZHANG, ZHI-QIANG, 2013, Hotspots of new species discovery: new mite species described during 2007 to 2012, pp. 1-102 in Zootaxa 3663 (1) on page 81, DOI: 10.11646/zootaxa.3663.1.1, http://zenodo.org/record/5630595