cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Asymptotic expansions for a class of singular integrals emerging in non-linear wave systems
Creators: name: Dymov, Andrey
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We find asymptotical expansions as $ν\to 0$ for integrals of the form $\int_{\mathbb{R}^d} F(x) / \big(ω(x)^2 + ν^2\big)\, dx$, where sufficiently smooth functions $F$ and $ω$ satisfy natural assumptions for their behaviour at infinity and all critical points of the function $ω$ from the set $\{ω(x) = 0\}$ are non-degenerate. These asymptotics play a crucial role when analysing stochastic models for non-linear waves systems. Our result generalizes that of [S. Kuksin, Russ. J. Math. Phys.'2017] where a similar asymptotics was found in a particular case when $ω$ is a non-degenerate quadratic form of the signature $(d/2,d/2)$ with even $d$.
description: 18 pages
Comparison of Models of Fast Saturable Absorption in Passively Modelocked Lasers
Creators: name: Wang, Shaokang
name: Marks, Brian S.
name: Menyuk, Curtis R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Fast saturable absorbers (FSAs) play a critical role in stabilizing many passively modelocked lasers. The most commonly used averaged model to study these lasers is the Haus modelocking equation (HME) that includes a third-order nonlinear FSA. However, it predicts a narrow region of stability that is inconsistent with experiments. To better replicate the laser physics, averaged laser models that include FSAs with higher-than-third-order nonlinearities have been introduced. Here, we compare three common FSA models to each other and to the HME using the recently-developed boundary tracking algorithms. The three FSA models are the cubic-quintic model, the sinusoidal model, and the algebraic model. We find that all three models predict the existence of a stable high-energy solution that is not present in the HME and have a much larger stable operating region. We also find that all three models predict qualitatively similar stability diagrams. We conclude that averaged laser models that include FSAs with higher-than-third-order nonlinearity should be used when studying the stability of passively modelocked lasers.
description: 17 pages, 10 figures
The Air Attack on Swansea: Lt W.G. Bladen's Report of the Fire Picquet at Swansea Central Hall, Orchard Street 21 February 1941 with commentary by Nigel A. Robins
Creators: name: Robins, Nigel A
name: W.G. Bladen
Publisher: name: Zenodo
Year: 2004
Subjects: Swansea Blitz, Luftwaffe, GIS, Incendiaries, Economic warfare, bomb disposal, Aerial survey, Home Guard

description: This is a report from a Home Guard officer William Bladen covering the activities of his unit during the Three Nights' Blitz in February 1941. Unedited from Bladen's with some sidebar commentary from me. Incredible detail and insight by an eyewitness. Illustrations from my collection. One of a series of experimental Adobe eBooklets from the Swansea History Web of the early 2000s.
MiNDSTEp differential photometry of the gravitationally lensed quasars WFI2033-4723 and HE0047-1756: Microlensing and a new time delay
Creators: name: Giannini, E.
name: Schmidt, R. W.
name: Wambsganß, J.
name: Alsubai, K.
name: Andersen, J. M.
name: Anguita, T.
name: Bozza, V.
name: Bramich, D. M.
name: Browne, P.
name: Novati, S. Calchi
name: Damerdji, Y.
name: Diehl, C.
name: Dodds, P.
name: Dominik, M.
name: Elyiv, A.
name: Fang, X.
name: Jaimes, R. Figuera
name: Finet, F.
name: Gerner, T.
name: Gu, S.
name: Hardis, S.
name: Harpsøe, K.
name: Hinse, T. C.
name: Hornstrup, A.
name: Hundertmark, M.
name: Jessen-Hansen, J.
name: Jørgensen, U. G.
name: Juncher, D.
name: Kains, N.
name: Kerins, E.
name: Korhonen, H.
name: Liebig, C.
name: Lund, M. N.
name: Lundkvist, M. S.
name: Maier, G.
name: Mancini, L.
name: Masi, G.
name: Mathiasen, M.
name: Penny, M.
name: Proft, S.
name: Rabus, M.
name: Rahvar, S.
name: Ricci, D.
name: Scarpetta, G.
name: Sahu, K.
name: Schäfer, S.
name: Schönebeck, F.
name: Skottfelt, J.
name: Snodgrass, C.
name: Southworth, J.
name: Surdej, J.
name: Tregloan-Reed, J.
name: Vilela, C.
name: Wertz, O.
name: Zimmer, F.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present V and R photometry of the gravitationally lensed quasars WFI2033-4723 and HE0047-1756. The data were taken by the MiNDSTEp collaboration with the 1.54 m Danish telescope at the ESO La Silla observatory from 2008 to 2012. Differential photometry has been carried out using the image subtraction method as implemented in the HOTPAnTS package, additionally using GALFIT for quasar photometry. The quasar WFI2033-4723 showed brightness variations of order 0.5 mag in V and R during the campaign. The two lensed components of quasar HE0047-1756 varied by 0.2-0.3 mag within five years. We provide, for the first time, an estimate of the time delay of component B with respect to A of $Δt= 7.6\pm1.8$ days for this object. We also find evidence for a secular evolution of the magnitude difference between components A and B in both filters, which we explain as due to a long-duration microlensing event. Finally we find that both quasars WFI2033-4723 and HE0047-1756 become bluer when brighter, which is consistent with previous studies.
description: 16 pages, 15 figures, 10 tables. Accepted for publication in A&A
Lopes, António S. J. - O problema da História - O princípio da sua inteligibilidade - Livraria Cruz-Braga. 1960. - Volume com o formato 185X135 e 103 páginas
Creators: name: Santos, Modesto
Publisher: name: Theologica
Year: 1965

description: Theologica, v. 3 (1965): Volume 3 (I série) (1965)
Cónego Dr. José António Martins Gigante - Direito Sacramental - 1 vol. de 532 págs. - Pax - Braga
Creators: name: Santos, Alexandrino Fernandes Dos
Publisher: name: Theologica
Year: 1965

description: Theologica, v. 3 (1965): Volume 3 (I série) (1965)
The relative expansion of the gas and electricity industries in the metropolitan areas of Victoria and New South Wales, 1950-51 to 1964-65 : a cost-benefit analysis
Creators: name: Pope, Robin Elizabeth.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Pure density functional for strong correlations and the thermodynamic limit from machine learning
Creators: name: Li, Li
name: Baker, Thomas E.
name: White, Steven R.
name: Burke, Kieron
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We use density-matrix renormalization group, applied to a one-dimensional model of continuum Hamiltonians, to accurately solve chains of hydrogen atoms of various separations and numbers of atoms. We train and test a machine-learned approximation to $F[n]$, the universal part of the electronic density functional, to within quantum chemical accuracy. Our calculation (a) bypasses the standard Kohn-Sham approach, avoiding the need to find orbitals, (b) includes the strong correlation of highly-stretched bonds without any specific difficulty (unlike all standard DFT approximations) and (c) is so accurate that it can be used to find the energy in the thermodynamic limit to quantum chemical accuracy.
description: 10 figures, 9 pages
Computational Tools for Topological CoHochschild Homology
Creators: name: Bohmann, Anna Marie
name: Gerhardt, Teena
name: Høgenhaven, Amalie
name: Shipley, Brooke
name: Ziegenhagen, Stephanie
Publisher: name: arXiv
Year: 2017
Subjects: subject: Algebraic Topology (math.AT)
subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics
subject: Primary: 19D55, 16T15, Secondary: 16E40, 55U35, 55P43

description: In recent work, Hess and Shipley defined a theory of topological coHochschild homology (coTHH) for coalgebras. In this paper we develop computational tools to study this new theory. In particular, we prove a Hochschild-Kostant-Rosenberg type theorem in the cofree case for differential graded coalgebras. We also develop a coBökstedt spectral sequence to compute the homology of coTHH for coalgebra spectra. We use a coalgebra structure on this spectral sequence to produce several computations.
Resummation of threshold logarithms in deeply-virtual Compton scattering
Creators: name: Schoenleber, Jakob
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: I derive an all-order resummation formula for the logarithmically enhanced contributions proportional to $\frac{α_s^n}{x \pm ξ} \log (\frac{ξ\pm x}{2ξ})^k$ in the quark coefficient function of deeply-virtual-Compton scattering and the pion-photon transition form factor in momentum space. The resummation is performed at the next-to-next-to-leading logarithmic accuracy. The key observation is that the quark coefficient function itself factorizes in the $x \rightarrow \pm ξ$ limit, which allows for a resummation using renormalization group equations. A preliminary numerical analysis suggests that the corrections due to resummation for the quark contribution might be small.
description: Published version
Remarque sur l’architecture cistercienne au Portugal por René Crozet (Actas do Congresso histórico de Portugal Medievo) (Bracara Augusta, vol. VI-VII. p. 14-24)
Creators: name: F., F.
Publisher: name: Theologica
Year: 1965

description: Theologica, v. 3 (1965): Volume 3 (I série) (1965)
Nonideal Quantum Measurement Effects on the Switching Currents Distribution of Josephson Junctions
Creators: name: Pierro, Vincenzo
name: Filatrella, Giovanni
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: Superconductivity (cond-mat.supr-con)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The quantum character of Josephson junctions is ordinarily revealed through the analysis of the switching currents, i.e. the current at which a finite voltage appears: A sharp rise of the voltage signals the passage (tunnel) from a trapped state (the zero voltage solution) to a running state (the finite voltage solution). In this context, we investigate the probability distribution of the Josephson junctions switching current taking into account the effect of the bias sweeping rate and introducing a simple nonideal quantum measurements scheme. The measurements are modelled as repeated voltage samplings at discrete time intervals, that is with repeated projections of the time dependent quantum solutions on the static or the running states, to retrieve the probability distribution of the switching currents. The distribution appears to be immune of the quantum Zeno effect, and it is close to, but distinguishable from, the Wentzel-Kramers-Brillouin approximation. For energy barriers comparable to the quantum fundamental energy state and in the fast bias current ramp rate the difference is neat, and remains sizeable in the asymptotic slow rate limit. This behaviour is a consequence of the quantum character of the system that confirms the presence of a backreaction of quantum measurements on the outcome of mesoscopic Josephson junctions.
description: 9 pages, 9 figures
Consumer demand and sensitivity analysis : a study in the theory of directly additive preferences
Creators: name: Tran, Van Hoa.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Non-scattering Metasurface-bound Cavities for Field Localization, Enhancement, and Suppression
Creators: name: Cuesta, F. S.
name: Asadchy, V. S.
name: Sayanskiy, A. D.
name: Lenets, V. A.
name: Mirmoosa, M. S.
name: Ma, X.
name: Glybovski, S. B.
name: Tretyakov, S. A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: We propose and analyse metasurface-bound invisible (non-scattering) partially open cavities where the inside field distribution can be engineered. It is demonstrated both theoretically and experimentally that the cavities exhibit unidirectional invisibility at the operating frequency with enhanced or suppressed field at different positions inside the cavity volume. Several examples of applications of the designed cavities are proposed and analyzed, in particular, cloaking sensors and obstacles, enhancement of emission, and "invisible waveguides". The non-scattering mode excited in the proposed cavity is driven by the incident wave and resembles an ideal bound state in the continuum of electromagnetic frequency spectrum. In contrast to known bound states in the continuum, the mode can stay localized in the cavity infinitely long, provided that the incident wave illuminates the cavity.
L’Afrique sera-t elle chrétienne ? por S. Ex.ª Rev.ma Mgr. B. Gantim, Arcebispo de Cotonou (Ecclesia n.º 137 Set. 1965) pg. 15-23
Creators: name: F., F.
Publisher: name: Theologica
Year: 1965

description: Theologica, v. 3 (1965): Volume 3 (I série) (1965)
Study of the Six-Loop Beta Function of the $λϕ^4_4$ Theory
Creators: name: Shrock, Robert
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate whether the six-loop beta function of the $λϕ^4_4$ theory exhibits evidence for an ultraviolet zero. As part of our analysis, we calculate and analyze Padé approximants to this beta function. Extending our earlier results at the five-loop level, we find that in the range of $λ$ where the perturbative calculation of the six-loop beta function is reliable, the theory does not exhibit robust evidence for an ultraviolet zero.
description: 7 pages latex, 2 figures
Endomorphism algebras of geometrically split abelian surfaces over $\mathbb{Q}$
Creators: name: Fité, Francesc
name: Guitart, Xavier
Publisher: name: arXiv
Year: 2018
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11G10, 14K15, 14K22

description: We determine the set of geometric endomorphism algebras of geometrically split abelian surfaces defined over $\mathbb{Q}$. In particular we find that this set has cardinality 92. The essential part of the classification consists in determining the set of quadratic imaginary fields $M$ with class group $\mathrm{C}_2 \times \mathrm{C}_2$ for which there exists an abelian surface $A$ defined over $\mathbb{Q}$ which is geometrically isogenous to the square of an elliptic curve with CM by $M$. We first study the interplay between the field of definition of the geometric endomorphisms of $A$ and the field $M$. This reduces the problem to the situation in which $E$ is a $\mathbb{Q}$-curve in the sense of Gross. We can then conclude our analysis by employing Nakamura's method to compute the endomorphism algebra of the restriction of scalars of a Gross $\mathbb{Q}$-curve.
description: We have added the relevant references [BS17], [Cre92], and [KS23], absent in the published version in Algebra & Number Theory
Efficacy of noisy dynamical decoupling
Creators: name: Qi, Jiaan
name: Xu, Xiansong
name: Poletti, Dario
name: Ng, Hui Khoon
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Dynamical decoupling (DD) refers to a well-established family of methods for error mitigation, comprising pulse sequences aimed at averaging away slowly evolving noise in quantum systems. Here, we revisit the question of its efficacy in the presence of noisy pulses in scenarios important for quantum devices today: pulses with gate control errors, and the computational setting where DD is used to reduce noise in every computational gate. We focus on the well-known schemes of periodic (or universal) DD, and its extension, concatenated DD, for scaling up its power. The qualitative conclusions from our analysis of these two schemes nevertheless apply to other DD approaches. In the presence of noisy pulses, DD does not always mitigate errors. It does so only when the added noise from the imperfect DD pulses do not outweigh the increased ability in averaging away the original background noise. We present breakeven conditions that delineate when DD is useful, and further find that there is a limit in the performance of concatenated DD, specifically in how far one can concatenate the DD pulse sequences before the added noise no longer offers any further benefit in error mitigation.
description: 20 pages, 6 figures
Performance-Portable Many-Core Plasma Simulations: Porting PIConGPU to OpenPower and Beyond
Creators: name: Zenker, Erik
name: Widera, René
name: Huebl, Axel
name: Juckeland, Guido
name: Knüpfer, Andreas
name: Nagel, Wolfgang E.
name: Bussmann, Michael
Publisher: name: arXiv
Year: 2016
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: With the appearance of the heterogeneous platform OpenPower,many-core accelerator devices have been coupled with Power host processors for the first time. Towards utilizing their full potential, it is worth investigating performance portable algorithms that allow to choose the best-fitting hardware for each domain-specific compute task. Suiting even the high level of parallelism on modern GPGPUs, our presented approach relies heavily on abstract meta-programming techniques, which are essential to focus on fine-grained tuning rather than code porting. With this in mind, the CUDA-based open-source plasma simulation code PIConGPU is currently being abstracted to support the heterogeneous OpenPower platform using our fast porting interface cupla, which wraps the abstract parallel C++11 kernel acceleration library Alpaka. We demonstrate how PIConGPU can benefit from the tunable kernel execution strategies of the Alpaka library, achieving portability and performance with single-source kernels on conventional CPUs, Power8 CPUs and NVIDIA GPUs.
description: 9 pages, 3 figures, accepted on IWOPH 2016
Inflation in post-war Australia : a simple model of wage price determination
Creators: name: Hiep, Huynh Cong.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
A Double Layered Water Cherenkov Detector Array for Gamma-Ray Astronomy
Creators: name: Kunwar, Samridha
name: Goksu, Hazal
name: Hinton, Jim
name: Schoorlemmer, Harm
name: Smith, Andrew
name: Hofmann, Werner
name: Werner, Felix
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Ground-level particle detection is now a well-established approach to TeV gamma-ray astronomy. Detection of Cherenkov light produced in water-filled detection units is a proven and cost-effective method. Here we discuss the optimization of the units towards the future Southern Wide-field Gamma-ray Observatory (SWGO). In this context, we investigate a new type of configuration in which each water Cherenkov detector (WCD) unit in the array comprises two chambers with black or reflective walls and a single photomultiplier tube (PMT) in each chamber. We find that this is a cost-effective approach that improves the performance of the WCD array with respect to current approaches. A shallow lower chamber with a PMT facing downwards enables muon tagging and the identification of hadron-induced air showers, which are the primary source of background in gamma-ray astronomy. We investigate how gamma/hadron separation power and achievable angular resolution depend on the geometry and wall reflectivity of the detector units in this configuration. We find that excellent angular resolution, background rejection power and low-energy response are achievable in this double-layer configuration, with the aid of reflective surfaces in both chambers.
description: 17 pages, 20 figures
Existence and multiplicity results for the fractional Laplacian in bounded domains
Creators: name: Mugnai, Dimitri
name: Pagliardini, Dayana
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: In this paper, first we study existence results for a linearly perturbed elliptic problem driven by the fractional Laplacian. Then, we show a multiplicity result when the perturbation parameter is close to the eigenvalues. This latter result is obtained by exploiting the topological structure of the sublevels of the associated functional, which permits to apply a critical point theorem of mixed nature due to Marino and Saccon.
Mére de L’Eglise pelo Padre J. Galot, S. J. In «Nouvel le Revue Theologique», N.° 11, Dezembro, 1964, págs 1163-1185
Creators: name: Rodrigues, Francisco Carvalho
Publisher: name: Theologica
Year: 1958

description: Theologica, v. 2 n. 3-4 (1958): Volume 2 (I série) n. 3-4 (1958-1965)
Color screening in $2+1$ flavor QCD at large distances
Creators: name: Steinbeißer, Sebastian
name: Weber, Johannes Heinrich
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We study correlation functions of spatially separated static quark-antiquark pairs in $2+1$ flavor QCD in order to investigate the nature of color screening at high temperatures. We perform lattice calculations in a wide temperature range, $116~\text{MeV} \leq T \leq 5814~\text{MeV}$, using the highly improved staggered quark (HISQ) action and several lattice spacings to control discretization effects. We alleviate the UV noise problem through the use of four dimensional hypercubic (HYP) smearing, which enables the reconstruction of correlators and determination of screening properties even at low temperatures and at large distances.
description: 8 pages, 9 figures
Constant solutions of Yang-Mills equations and generalized Proca equations
Creators: name: Marchuk, N. G.
name: Shirokov, D. S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 70S15, 15A66, 15A75

description: In this paper we present some new equations which we call Yang-Mills-Proca equations (or generalized Proca equations). This system of equations is a generalization of Proca equation and Yang-Mills equations and it is not gauge invariant. We present a number of constant solutions of this system of equations in the case of arbitrary Lie algebra. In details we consider the case when this Lie algebra is Clifford algebra or Grassmann algebra. We consider solutions of Yang-Mills equations in the form of perturbation theory series near the constant solution.
Efficiency bounds on thermoelectric transport in magnetic fields: The role of inelastic processes
Creators: name: Yamamoto, Kaoru
name: Entin-Wohlman, Ora
name: Aharony, Amnon
name: Hatano, Naomichi
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We examine the efficiency of an effective two-terminal thermoelectric device under broken time-reversal symmetry. The setup is derived from a three-terminal thermoelectric device comprising a thermal terminal and two electronic contacts, under a magnetic field. We find that breaking time-reversal symmetry in the presence of the inelastic electron-phonon processes can significantly enhance the figure of merit for delivering electric power by supplying heat from a phonon bath, beyond the one for producing the electric power by investing thermal power from the electronic heat current. The efficiency of such a device is bounded by the non-negativity of the entropy production of the original three-terminal junction. The efficiency at maximal power can be quite close to the Carnot efficiency, but then the electric power vanishes.
description: 6 pages, 3 figures, published version
Origem cristã da prática virginal na igreja primitiva pelo Padre Juan Manuel del Estal, O. S. A — In «Ciudad de Dios», 72 (1956), pág. 209-253
Creators: name: Silva, Raúl
Publisher: name: Theologica
Year: 1958

description: Theologica, v. 2 n. 3-4 (1958): Volume 2 (I série) n. 3-4 (1958-1965)
Wage policy in New Guinea / John Langmore.
Creators: name: Langmore, J. V.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Deep Physics Corrector: A physics enhanced deep learning architecture for solving stochastic differential equations
Creators: name: Tushar
name: Chakraborty, Souvik
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: We propose a novel gray-box modeling algorithm for physical systems governed by stochastic differential equations (SDE). The proposed approach, referred to as the Deep Physics Corrector (DPC), blends approximate physics represented in terms of SDE with deep neural network (DNN). The primary idea here is to exploit DNN to model the missing physics. We hypothesize that combining incomplete physics with data will make the model interpretable and allow better generalization. The primary bottleneck associated with training surrogate models for stochastic simulators is often associated with selecting the suitable loss function. Among the different loss functions available in the literature, we use the conditional maximum mean discrepancy (CMMD) loss function in DPC because of its proven performance. Overall, physics-data fusion and CMMD allow DPC to learn from sparse data. We illustrate the performance of the proposed DPC on four benchmark examples from the literature. The results obtained are highly accurate, indicating its possible application as a surrogate model for stochastic simulators.
Genomic Consequences and Demographic Response to Pervasive Hybridization over Time in Climate-sensitive Pikas
Creators: name: 德燕 葛
Publisher: name: CNGB
Year: 2022
Subjects: Raw sequence reads
Genome sequencing
Multispecies
Evolution

description: Population-level whole-genome sequencing of six closely related species in the subgenus Ochotona revealed several phases of ancient introgression, lineage replacement, and bidirectional introgression.
Using SDO/HMI magnetograms as a source of the solar mean magnetic field data
Creators: name: Kutsenko, A. S.
name: Abramenko, V. I.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The solar mean magnetic field (SMMF) provided by the Wilcox Solar Observatory (WSO) is compared with the SMMF acquired by the \textit{Helioseismic and Magnetic Imager} (HMI) onboard the \textit{Solar Dynamic Observatory} (SDO). We found that despite the different spectral lines and measurement techniques used in both instruments the Pearson correlation coefficient between these two datasets equals 0.86 while the conversion factor is very close to unity: B(HMI) = 0.99(2)B(WSO). We also discuss artifacts of the SDO/HMI magnetic field measurements, namely the 12 and 24-hour oscillations in SMMF and in sunspots magnetic fields that might be caused by orbital motions of the spacecraft. The artificial harmonics of SMMF reveal significant changes in amplitude and the nearly stable phase. The connection between the 24-hour harmonic amplitude of SMMF and the presence of sunspots is examined. We also found that opposite phase artificial 12 and/or 24-hour oscillations exist in sunspots of opposite polarities.
description: 13 pages, 9 figures
Approximating Continuous Functions on Persistence Diagrams Using Template Functions
Creators: name: Perea, Jose A.
name: Munch, Elizabeth
name: Khasawneh, Firas A.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computational Geometry (cs.CG)
subject: Algebraic Topology (math.AT)
subject: Statistics Theory (math.ST)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: 55N31, 30L05, 68T05

description: The persistence diagram is an increasingly useful tool from Topological Data Analysis, but its use alongside typical machine learning techniques requires mathematical finesse. The most success to date has come from methods that map persistence diagrams into vector spaces, in a way which maximizes the structure preserved. This process is commonly referred to as featurization. In this paper, we describe a mathematical framework for featurization called \emph{template functions}, and we show that it addresses the problem of approximating continuous functions on compact subsets of the space of persistence diagrams. Specifically, we begin by characterizing relative compactness with respect to the bottleneck distance, and then provide explicit theoretical methods for constructing compact-open dense subsets of continuous functions on persistence diagrams. These dense subsets -- obtained via template functions -- are leveraged for supervised learning tasks with persistence diagrams. Specifically, we test the method for classification and regression algorithms on several examples including shape data and dynamical systems.
description: To appear in Foundations of Computational Mathematics
Ultra-quantum turbulence in a quenched homogeneous Bose gas
Creators: name: Stagg, G. W.
name: Parker, N. G.
name: Barenghi, C. F.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Using the classical field method, we study numerically the characteristics and decay of the turbulent tangle of superfluid vortices which is created in the evolution of a Bose gas from highly nonequilibrium initial conditions. By analysing the vortex line density, the energy spectrum and the velocity correlation function, we determine that the turbulence resulting from this effective thermal quench lacks the coherent structures and the Kolmogorov scaling; these properties are typical of both ordinary classical fluids and of superfluid helium when driven by grids or propellers. Instead, thermal quench turbulence has properties akin to a random flow, more similar to another turbulent regime called ultra-quantum turbulence which has been observed in superfluid helium.
description: 7 pages, 5 figures
Um cenobitismo pré-agostiniano em África por Dom Juan Manuel del Estail, O. S. B. In «La Ciudad de Dios», vol. CLXIX, 1956. págs. 375-408, e vol. CLXXI, p. 101, segs
Creators: name: Redação, A
Publisher: name: Theologica
Year: 1958

description: Theologica, v. 2 n. 3-4 (1958): Volume 2 (I série) n. 3-4 (1958-1965)
Targeted Data Publishing to Increase Quantity, Openness, and Accessibility of Critically Important Public Health Data
Creators: name: Edmunds, Scott C
Publisher: name: Zenodo
Year: 2023
Subjects: biodiversity, open science, publishing

description: Data publishing can incentivise data sharing, but there are technical and financial barriers for many authors around the world in sharing the data, writing the papers, and covering the costs, leading to geographic gaps and bias. One research field of great importance to human health is vector-borne diseases, which are responsible for more than 17% of cases of infectious diseases. Sponsored data mobilization campaigns can improve data coverage, and GigaByte Journal has worked with GBIF and TDR to launch a “Vectors of human disease” series to boost research with important relevance to human health. With WHO sponsorship covering the already low costs of the novel XML-first publishing workflow, a helpdesk is up to provide assistance with data submission, and multilingual functionality and linking to regional preprint-servers such as AfricArxiv and SciELO preprints enable communication in native languages other than English. This effort has led to the release of newly digitized location data for more than 650,000 disease vector occurrence records across the Americas and Europe, with more than half of the submissions from Latin America. A second phase of this effort has extended the geographic and taxonomic reach further, with many new data submissions from Africa and Asia. Here, I will present the latest results of both phases of this targeted approach to sharing data along with lessons learned from data mobilisation approaches to help and inspire others to carry out similar efforts.
A four dimensional Bernstein Theorem
Creators: name: Perotti, Alessandro
Publisher: name: arXiv
Year: 2019
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: Primary 30G35, Secondary 26D05, 33C50

description: We prove a four dimensional version of the Bernstein Theorem, with complex polynomials being replaced by quaternionic polynomials. We deduce from the theorem a quaternionic Bernstein's inequality and give a formulation of this last result in terms of four-dimensional zonal harmonics and Gegenbauer polynomials.
João Maia, S, J., Abriu-se a Noite, poemas. Livraria Cruz, Braga, 1954
Creators: name: Reis, António Matos
Publisher: name: Theologica
Year: 1958

description: Theologica, v. 2 n. 3-4 (1958): Volume 2 (I série) n. 3-4 (1958-1965)
The effect of turbulent clustering on particle reactivity
Creators: name: Krüger, Jonas
name: Haugen, Nils E. L.
name: Mitra, Dhrubaditya
name: Løvås, Terese
Publisher: name: arXiv
Year: 2016
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The effect of turbulence on the heterogeneous (solid-fluid) reactions of solid particles is studied numerically with Direct Numerical Simulations (DNS). A simplified reaction system is used, where the solid-fluid reaction is represented by a single isothermal reaction step. It is found that, due to the clustering of particles by the isotropic turbulence, the overall reaction rate is entirely controlled by the turbulence for large Damköhler numbers. The particle clustering significantly slows down the reaction rate for increasing Damköhler numbers which reaches an asymptotic limit that can be analytically derived. This implies that the effect of turbulence on heterogeneously reacting particles should be included in models that are used in CFD simulations of e.g. char burnout in combustors or gasifiers. Such a model, based on the chemical and turbulent time scales, is here proposed for the heterogeneous reaction rate in the presence of turbulence.
description: Published online in the Proceedings of the Combustion Institute
Piergiovanni Bonardi, C. P. e Tibursio Lupo, S. D. B, - L’Imitazione di Cristo e II sue Autore. Torino, 1964. Vol. de XVI-348 páginas de texto e 16 de estampas
Creators: name: Cunha, Arlindo Ribeiro Da
Publisher: name: Theologica
Year: 1958

description: Theologica, v. 2 n. 3-4 (1958): Volume 2 (I série) n. 3-4 (1958-1965)
Do Social Media Platforms Impede the Wisdom of Crowds?
Creators: name: Chen, Yile
Publisher: name: University of Chicago
Year: 2022
Subjects: subject: Social Learning
subject: Platforms
subject: Collective Wisdom

description: Social media platforms have been playing an increasingly crucial role in shaping social interaction and information exchange. While facilitating communication, they possess the central power that determines which content users are exposed to. In this paper, we examine how platforms’ information distribution mechanisms affect a society’s ability to aggregate information correctly and efficiently. We consider four criteria that algorithms can favor in curating content: globally most engaging (GE), locally most engaging (LE), globally closest (GC), and/or locally closest (LC). That is, for a given user, platforms can promote beliefs that are most engaging and/or are most similar to her pre-existing belief; beliefs can be sorted globally (among all users) or locally (among the user’s connections). We simulate a social learning model where agents form beliefs by learning from each other and from the information allocated by the platform. We find that while exposing users to engaging beliefs considerably increases learning bias, feeding personalized information based on belief similarity does not affect collective wisdom significantly. All mechanisms except GE slow down the speed for agents to converge to a consensus.
James A. Weisheipl, Albertus Magnus and the Oxford Platonisk. Sobre o Platonismo de S. Alberto Magno
Creators: name: Lopes, António Da Costa
Publisher: name: Theologica
Year: 1958

description: Theologica, v. 2 n. 3-4 (1958): Volume 2 (I série) n. 3-4 (1958-1965)
Vector boson and charmonia measurements in $p$+Pb collisions with ATLAS
Creators: name: Koehler, Markus K.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The production of electroweak bosons ($Z,γ$ and $W$) and charmonia is sensitive to the initial-state geometry of heavy-ion collisions and to the parton distribution function with its potential nuclear modification. Since their leptonic decay products do not interact strongly, their kinematics are unmodified by the strongly interacting medium, which can be created in a heavy-ion collision. We report on the latest results of the ATLAS Collaboration on electroweak boson and charmonia production in $p$+Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV. Production yields of $Z$ and $W$ bosons are presented as a function of (pseudo-)rapidity in different centrality bins. The forward-backward ratio of J/$ψ$ is shown as a function of transverse momentum and center-of-mass rapidity.
description: 5 pages, 7 figures, Proceedings of XXIV International Workshop on Deep-Inelastic Scattering and Related Subjects (DIS 2016), DESY Hamburg, Germany, 11-15 April, 2016
Effect of Co Substitution on Ferrimagnetic Heusler compound Mn3Ga
Creators: name: Nguyen, Quynh Anh T.
name: Ho, Thi H.
name: Jung, Myung-Hwa
name: Rhim, Sonny H.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Effect of Co substitution on Mn$_3$Ga is investigated using first-principles study for structural and magnetic properties. Without Co, ferrimagnetic Heusler compound Mn3Ga is in tetragonal phase. With Co substitution, depending on Co concentration (x) Mn$_3$Ga prefers tetragonal (cubic) phase when x \leq 0.5 (x \geq 0.5). Ferrimagnetism is robust regardless of x in both phases. While magnetic moments of two Mn do not vary significantly with x, Co magnetic moment in two phases exhibit different behaviors, leading to distinct features in total magnetic moment (M_{tot}). When x \leq 0.5, in tetragonal phase, Co magnetic moment is vanishingly small, resulting in a decrease of M_{tot} with x. In contrast, when x \geq 0.5, in cubic phase, Co magnetic moment is roughly 1$μ_B$, which is responsible for an increase of Mtot. Electronic structure is analyzed with partial density of states for various x. To elucidate the counterintuitively small Co moment, the magnetic exchange interaction is investigated where exchange coefficient between Co and Mn is much smaller in x \leq 0.5 case than x \geq 0.5 one.
description: 5 pages 4 figures
Category O for Takiff sl_2
Creators: name: Mazorchuk, Volodymyr
name: Söderberg, Christoffer
Publisher: name: arXiv
Year: 2019
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: We investigate various ways to define an analogue of BGG category $\mathcal{O}$ for the non-semi-simple Takiff extension of the Lie algebra $\mathfrak{sl}_2$. We describe Gabriel quivers for blocks of these analogues of category $\mathcal{O}$ and prove extension fullness of one of them in the category of all modules.
description: Fixed typos in Corollary 28
Broadband Bragg phenomenon in a uniform medium
Creators: name: McCall, Martin W.
name: Koufidis, Stefanos Fr.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: A new mechanism of Bragg reflection is identified, one that, remarkably, occurs in a uniform medium and relies on resonant tuning of the medium's parameters. Due to uniformity, reflection ensues over a broad wavelength range, much like a metal, but it is polarization dependent: one circular state is reflected, whilst the other is transmitted. Such a medium can thus provide a broadband, low-loss polarization divider/combiner. Assessment of the required parameters suggests that manufacturing is within range of current metamaterials technology. By externally regulating the medium's parameters, a highly efficient optical modulator is possible with potential applications across optics, optoelectronics, and photonics.
description: 7 pages, 6 figures, 21 references
Disk-Jet quenching of the Galactic Black Hole Swift J1753.5-0127
Creators: name: Rushton, A. P.
name: Shaw, A. W.
name: Fender, R. P.
name: Altamirano, D.
name: Gandhi, P.
name: Uttley, P.
name: Charles, P. A.
name: Kolehmainen, M.
name: Anderson, G. E.
name: Rumsey, C.
name: Titterington, D. J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report on radio and X-ray monitoring observations of the BHC Swift J1753.5-0127 taken over a ~10 year period. Presented are daily radio observations at 15 GHz with the AMI-LA and X-ray data from Swift XRT and BAT. Also presented is a deep 2hr JVLA observation taken in an unusually low-luminosity soft-state (with a low disk temperature). We show that although the source has remained relatively radio-quiet compared to XRBs with a similar X-ray luminosity in the hard-state, the power-law relationship scales as $ζ=0.96\pm0.06$ i.e. slightly closer to what has been considered for radiatively inefficient accretion disks. We also place the most stringent limit to date on the radio-jet quenching in an XRB soft-state, showing the connection of the jet quenching to the X-ray power-law component; the radio flux in the soft-state was found to be $<21~μ$Jy, which is a quenching factor of $\gtrsim25$
description: 8 pages, 4 figures, Accepted for publication in MNRAS
Action Prediction in Humans and Robots
Creators: name: Wörgötter, Florentin
name: Ziaeetabar, Fatemeh
name: Pfeiffer, Stefan
name: Kaya, Osman
name: Kulvicius, Tomas
name: Tamosiunaite, Minija
Publisher: name: arXiv
Year: 2019
Subjects: subject: Robotics (cs.RO)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Efficient action prediction is of central importance for the fluent workflow between humans and equally so for human-robot interaction. To achieve prediction, actions can be encoded by a series of events, where every event corresponds to a change in a (static or dynamic) relation between some of the objects in a scene. Manipulation actions and others can be uniquely encoded this way and only, on average, less than 60% of the time series has to pass until an action can be predicted. Using a virtual reality setup and testing ten different manipulation actions, here we show that in most cases humans predict actions at the same event as the algorithm. In addition, we perform an in-depth analysis about the temporal gain resulting from such predictions when chaining actions and show in some robotic experiments that the percentage gain for humans and robots is approximately equal. Thus, if robots use this algorithm then their prediction-moments will be compatible to those of their human interaction partners, which should much benefit natural human-robot collaboration.
Hidden Local Symmetry and Beyond
Creators: name: Yamawaki, Koichi
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Gerry Brown was a godfather of our hidden local symmetry (HLS) for the vector meson from the birth of the theory throughout his life. The HLS is originated from very nature of the nonlinear realization of the symmetry G based on the manifold G/H, and thus is universal to any physics based on the nonlinear realization. Here I focus on the Higgs Lagrangian of the Standard Model (SM), which is shown to be equivalent to the nonlinear sigma model based on G/H= SU(2)_L x SU(2)_R/SU(2)_V with additional symmetry, the nonlinearly realized scale symmetry. Then the SM does have a dynamical gauge boson of the SU(2)_V HLS, "SM rho meson", in addition to the Higgs as a pseudo dilaton as well as the NG bosons to be absorbed into the W and Z. Based on the recent work done with S. Matsuzaki and H. Ohki, I discuss a novel possibility that the SM rho meson acquires kinetic term by the SM dynamics itself, which then stabilizes the skyrmion dormant in the SM as a viable candidate for the dark matter, what we call "Dark SM skyrmion (DSMS)".
description: To appear in the Gerry Brown Memorial Book
Methods for the measurement of hospital efficiency : a comparison of frontier estimation techniques in a sample of Victorian public hospitals
Creators: name: Mortimer, Duncan Stuart.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
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