cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: On (very) new and (extremely) critical archaeologies, or, why one may remain forever eighteen years behind the truly new
title: On (very) new and (extremely) critical archaeologies, or, why one may remain forever eighteen years behind the truly new
Creators: name: Kobiałka, Dawid
Publisher: name: datalino
Year: 2013

description: Heutige Archäologien sind komplex und vielfältig. Es ist z.B. einfacher, die Unterschiede zwischen prähistorischer Archäologie (z.B. Childe 1929) und der Archäologie der nahen Vergangenheit (Buchli und Lucas 2001) zu bestimmen, als ihre Gemeinsamkeiten zu finden. Das Gleiche gilt für die Geschichte der Archäologie als solche. Vereinfacht ausgedrückt, bereitet es keinerlei Schwierigkeiten, die Unterschiede zwischen kulturhistorischer Archäologie, prozessualer und postprozessualer Archäologie aufzuzeigen (Trigger 2006). In diesem Artikel behaupte ich jedoch, dass jede der genannten Archäologien dieselben Ideen darüber beinhaltet, was „neu“ ist, bzw. was „Kritik“ bedeutet. Die These des vorliegenden Textes ist, dass sich für gewöhnlich nicht viel Neues hinter den Ideen verbirgt, die sich als neu und innovativ ausgeben (Žižek 2008).
description: Contemporary archaeologies are complex and diverse. It is easier to find things that differentiate prehistoric archaeology, for example, (e.g. Childe 1929) from the archaeology of the contemporary past (Buchli and Lucas 2001) than to identify what both share. The same claim applies to a history of archaeology as such. To simplify, to indicate the differences between culture-historical archaeology, processual archaeology and post-processual archaeologies does not cause many problems (Trigger 2006). However, in this article I claim that these archaeologies use in a very same way the ideas of what ‘new’ and ‘critique’ in archaeology are about. The thesis of this text is: there is usually not so much truly new in the ideas that are described as new and innovative (Žižek 2008).
description: Forum Kritische Archäologie
description: Forum Kritische Archäologie
Growing dust grains in protoplanetary discs - III. Vertical settling
Creators: name: Laibe, G.
name: Gonzalez, J.-F.
name: Maddison, Sarah
name: Crespe, E.
Publisher: name: Swinburne
Year: 2024

description: We aim to derive a simple analytic model to understand the essential properties of vertically settling growing dust grains in laminar protoplanetary discs. Separating the vertical dynamics from the motion in the disc midplane, we integrate the equations of motion for both a linear and an exponential grain growth rate. Numerical integrations are performed for more complex growth models. We find that the settling efficiency depends on the value of the dimensionless parameter gamma, which characterises the relative efficiency of grain growth with respect to the gas drag. Since gamma is expected to be of order as the initial dust-to-gas ratio in the disc (of order 10^-2), grain growth enhances the energy dissipation of the dust particles and improve the settling efficiency in protoplanetary discs. This behaviour is mostly independent of the growth model considered as well as of the radial drift of the particles.
Anharmonic Lattice Dynamics in Sodium Ion Conductors
Creators: name: Brenner, Thomas M.
name: Grumet, Manuel
name: Till, Paul
name: Asher, Maor
name: Zeier, Wolfgang G.
name: Egger, David A.
name: Yaffe, Omer
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We employ THz-range temperature-dependent Raman spectroscopy and first-principles lattice-dynamical calculations to show that the undoped sodium ion conductors Na$_3$PS$_4$ and isostructural Na$_3$PSe$_4$ both exhibit anharmonic lattice dynamics. The anharmonic effects in the compounds involve coupled host lattice -- Na$^+$ ion dynamics that drive the tetragonal-to-cubic phase transition in both cases, but with a qualitative difference in the anharmonic character of the transition. Na$_3$PSe$_4$ shows almost purely displacive character with the soft modes disappearing in the cubic phase as the change of symmetry shifts these modes to the Raman-inactive Brillouin zone boundary. Na$_3$PS$_4$ instead shows order-disorder character in the cubic phase, with the soft modes persisting through the phase transition and remaining active in Raman in the cubic phase, violating Raman selection rules for that phase. Our findings highlight the important role of coupled host lattice -- mobile ion dynamics in vibrational instabilities that are coincident with the exceptional conductivity in these Na$^+$ ion conductors.
Anastrophyllopsis involutifolia Vana et L. Soderstr., Phytotaxa
Creators: name: Söderström, Lars
name: Hagborg, Anders
name: Konrat, Matt Von
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Plantae
Marchantiophyta
Jungermanniopsida
Jungermanniales
Anastrophyllaceae
Anastrophyllopsis
Anastrophyllopsis involutifolia

description: Anastrophyllopsis involutifolia (Mont. ex Gottsche, Lindenb. et Nees) Váňa et L.Söderstr.,
Phytotaxa 81 (1): 15, 2013 (see Váňa et al. 2013f). BASIONYM: Jungermannia involutifolia Mont. ex Gottsche, Lindenb. et Nees, Syn. Hepat. 1: 81, 1844 (see Gottsche et al. 1844).
description: Published as part of Söderström, Lars, Hagborg, Anders & Konrat, Matt Von, 2016, Early Land Plants Today: Index of Liverworts & Hornworts 2013 - 2014, pp. 133-185 in Phytotaxa 269 (3) on page 135, DOI: 10.11646/phytotaxa.269.3.1, http://zenodo.org/record/4779693
Ergodicity breaking transition in zero dimensions
Creators: name: Šuntajs, Jan
name: Vidmar, Lev
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: It is of great current interest to establish toy models of ergodicity breaking transitions in quantum many-body systems. Here we study a model that is expected to exhibit an ergodic to nonergodic transition in the thermodynamic limit upon tuning the coupling between an ergodic quantum dot and distant particles with spin-1/2. The model is effectively zero dimensional, however, a variant of the model was proposed by De Roeck and Huveneers to describe the avalanche mechanism of ergodicity breaking transition in one-dimensional disordered spin chains. We show that exact numerical results based on the spectral form factor calculation accurately agree with theoretical predictions, and hence unambiguously confirm existence of the ergodicity breaking transition in this model. We benchmark specific properties that represent hallmarks of the ergodicity breaking transition in finite systems.
Simulating the behaviour of travelling wave superconducting parametric amplifiers using a commercial circuit simulator
Creators: name: Sweetnam, T.
name: Banys, D.
name: Gilles, V.
name: McCulloch, M. A.
name: Piccirillo, L.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Kinetic inductance travelling wave parametric amplifiers (KI-TWPAs) have been simulated using Keysight's Advanced Design System (ADS). A lumped element representation of a superconducting transmission line has been developed using nonlinear inductor elements to represent the current dependency of the intrinsic kinetic inductance. This provides a fast, simple and easily modifiable method for analysing the parametric processes that occur in nonlinear kinetic inductance devices such as parametric oscillators or amplifiers, while also allowing the accompanying RF network to be optimised. This methodology is used to model the behaviour of a select number of KI-TWPA designs operating in the 3-wave mixing (3WM) and 4-wave mixing (4WM) regimes. S-parameters and dispersion properties are extracted from large signal S-parameter simulations and the gain curve of each amplifier design is generated from harmonic balance simulations. Results of these are compared to the gain expression from the analytic solutions of the coupled mode equations, while making reference to the gain curves of the equivalent KI-TWPAs from literature.
description: 9 pages, 8 figures
Association of pulsatile and mean cerebral blood flow velocity with age and neuropsychological performance
Creators: name: Pase, Matthew
name: Grima, Natalie A.
name: Stough, Con
name: Scholey, Andrew
name: Pipingas, Andrew
Publisher: name: Swinburne
Year: 2024
Subjects: classificationCode: 520201
subject: Behavioural genetics
classificationCode: 520202
subject: Behavioural neuroscience
classificationCode: 520203
subject: Cognitive neuroscience
classificationCode: 520205
subject: Psychopharmacology
classificationCode: 520206
subject: Psychophysiology
classificationCode: 520207
subject: Social and affective neuroscience
classificationCode: 520301
subject: Clinical neuropsychology
classificationCode: 520401
subject: Cognition
classificationCode: 520403
subject: Learning, motivation and emotion

description: Low cerebral blood flow velocity is associated with cognitive decline. However, the association between pulsatile brain blood flow velocity and cognition has not been investigated. High pulsatile hemodynamic stress in the brain may impair cognitive function through damage to small cerebral vessels. The current objective was to examine the cross-sectional association of pulsatile and mean cerebral blood flow velocity with age and neuropsychological performance. We also examined whether cerebral blood flow velocity was associated with aortic pulse pressure, a measure of arterial ageing and aortic stiffness. Cerebral blood flow velocity was measured in the middle cerebral artery using Transcranial Doppler Ultrasonography (TDU) while neuropsychological performance was measured using a computerized cognitive test battery. Aortic pulse pressure was non-invasively derived from applanation tonometry of the radial artery. The sample comprised 160 healthy adults aged 50-70. years. Results indicated that increasing age correlated with lower mean ( r= - 0.23, p<. 0.01) and higher pulsatile ( r= 0.27, p<. 0.01) brain blood flow velocity. In multivariate adjusted models, both peripheral ( β= 0.28, p<. 0.05) and aortic ( β= 0.24, p<. 0.05) pulse pressure were associated with higher pulsatile flow velocity through the middle cerebral artery. In adjusted models, neither mean nor pulsatile cerebral blood flow velocity was associated with performance on any cognitive task. In conclusion, arterial ageing was associated with increased pulsatile hemodynamic stress in the brain. However, this was not associated with impaired neuropsychological performance.
Anastrophyllopsis Vana et L. Soderstr., Phytotaxa
Creators: name: Söderström, Lars
name: Hagborg, Anders
name: Konrat, Matt Von
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Plantae
Marchantiophyta
Jungermanniopsida
Jungermanniales
Anastrophyllaceae
Anastrophyllopsis

description: Anastrophyllopsis (R.M.Schust.) Váňa et L.Söderstr.,
Phytotaxa 81 (1): 15, 2013 (see Váňa et al. 2013f). BASIONYM: Anastrophyllum sect. Anastrophyllopsis R.M.Schust., Beih. Nova Hedwigia 119: 310, 2002 (see Schuster 2002).
description: Published as part of Söderström, Lars, Hagborg, Anders & Konrat, Matt Von, 2016, Early Land Plants Today: Index of Liverworts & Hornworts 2013 - 2014, pp. 133-185 in Phytotaxa 269 (3) on page 135, DOI: 10.11646/phytotaxa.269.3.1, http://zenodo.org/record/4779693
MODELING THE DISTRIBUTION OF Mg II ABSORBERS AROUND GALAXIES USING BACKGROUND GALAXIES AND QUASARS
Creators: name: Bordoloi, R.
name: Lilly, S. J.
name: Kacprzak, Glenn
name: Churchill, C. W.
Publisher: name: Swinburne
Year: 2024
Subjects: classificationCode: 510103
subject: Cosmology and extragalactic astronomy

description: We present joint constraints on the distribution of Mg II absorption around high redshift galaxies obtained by combining two orthogonal probes, the integrated Mg II absorption seen in stacked background galaxy spectra and the distribution of parent galaxies of individual strong Mg II systems as seen in the spectra of background quasars. We present a suite of models that can be used to predict, for different two- and three-dimensional distributions, how the projected Mg II absorption will depend on a galaxy's apparent inclination, the impact parameter b and the azimuthal angle between the projected vector to the line of sight and the projected minor axis. In general, we find that variations in the absorption strength with azimuthal angles provide much stronger constraints on the intrinsic geometry of the Mg II absorption than the dependence on the inclination of the galaxies. In addition to the clear azimuthal dependence in the integrated Mg II absorption that we reported earlier in Bordoloi et al., we show that strong equivalent width Mg II absorbers (Wr (2796) ≥ 0.3 Å) are also asymmetrically distributed in azimuth around their host galaxies: 72% of the absorbers in Kacprzak et al., and 100% of the close-in absorbers within 35 kpc of the center of their host galaxies, are located within 50° of the host galaxy's projected semi minor axis. It is shown that either composite models consisting of a simple bipolar component plus a spherical or disk component, or a single highly softened bipolar distribution, can well represent the azimuthal dependencies observed in both the stacked spectrum and quasar absorption-line data sets within 40 kpc. Simultaneously fitting both data sets, we find that in the composite model the bipolar cone has an opening angle of ~100° (i.e., confined to within 50° of the disk axis) and contains about two-thirds of the total Mg II absorption in the system. The single softened cone model has an exponential fall off with azimuthal angle with an exponential scale length in opening angle of about 45°. We conclude that the distribution of Mg II gas at low impact parameters is not the same as that found at high impact parameters. At larger impact parameters beyond 40 kpc, there is evidence for a much more symmetric distribution, significantly different from that closer in to the galaxies.
Revealing Intrinsic Flat $Λ$CDM Biases with Standardizable Candles
Creators: name: Colgáin, Eoin Ó
name: Sheikh-Jabbari, M. M.
name: Solomon, Rance
name: Bargiacchi, Giada
name: Capozziello, Salvatore
name: Dainotti, Maria Giovanna
name: Stojkovic, Dejan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Emerging high redshift cosmological probes, in particular quasars (QSOs), show a preference for larger matter densities, $Ω_{m} \approx 1$, within the flat $Λ$CDM framework. Here, using the Risaliti-Lusso relation for standardizable QSOs, we demonstrate that the QSOs recover the \textit{same} Planck-$Λ$CDM Universe as Type Ia supernovae (SN), $Ω_m \approx 0.3$ at lower redshifts $ 0 < z \lesssim 0.7$, before transitioning to an Einstein-de Sitter Universe ($Ω_m =1$) at higher redshifts $z \gtrsim 1$. We illustrate the same trend, namely increasing $Ω_{m}$ and decreasing $H_0$ with redshift, in SN but poor statistics prevent a definitive statement. We explain physically why the trend is expected in the flat $Λ$CDM cosmology, illustrate the intrinsic bias and non-Gaussian tails with mock Pantheon data, and identify a similar trend in BAO below $z=1$. Our results highlight an intrinsic bias in the flat $Λ$CDM Universe, whereby $Ω_m$ increases, $H_0$ decreases and $S_8$ increases with effective redshift, thus providing a new perspective on $Λ$CDM tensions; even in a Planck-$Λ$CDM Universe the current tensions might have been expected.
description: 6 pages, 7 figures, comments welcome; v2 matches published version
Wave function of the universe in the presence of trans-Planckian censorship
Creators: name: Mondal, Vikramaditya
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The wave function for a closed de Sitter universe has been computed, demanding consistency with the recently proposed Trans-Planckian Censorship Conjecture (TCC). We extend the Einstein-Hilbert action to contain a complex-valued term which provides an exponentially decaying weight for the geometries violating TCC in the Lorentzian path integral sum while working in the minisuperspace approach to quantum cosmology. This \textit{postulated} modification suppresses the probability of evolution of the universe into configurations that violate TCC. We show that due to the presence of this suppression factor, the Hubble rate of the universe at the end of the inflation gets subdued and assumes a value less than what is expected classically. Moreover, the consequences of this quantum gravity motivated correction in the primordial power spectrum are discussed as well.
Do we need to handle every temporal violation in scientific workflow systems?
Creators: name: Liu, Xiao
name: Yang, Yun
name: Yuan, Dong
name: Chen, Jue
Publisher: name: Swinburne
Year: 2024

description: Scientific processes are usually time constrained with overall deadlines and local milestones. In scientific workflow systems, due to the dynamic nature of the underlying computing infrastructures such as grid and cloud, execution delays often take place and result in a large number of temporal violations. Temporal violation handling is to execute violation handling strategies which can compensate for the occurring time deficit but would impose some additional cost. Generally speaking, the two fundamental requirements for delivering satisfactory temporal QoS in scientific workflow systems are temporal conformance and cost effectiveness. Every task for workflow temporal management incurs some cost. Take a single temporal violation handling as an example, its cost can be primarily referred to monetary costs and time overheads of violation handling strategies which are normally nontrivial in scientific workflow systems.
Fractionalization of subsystem symmetries in two dimensions
Creators: name: Stephen, David T.
name: Dua, Arpit
name: Garre-Rubio, José
name: Williamson, Dominic J.
name: Hermele, Michael
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The fractionalization of global symmetry charges is a striking hallmark of topological quantum order. Here, we discuss the fractionalization of subsystem symmetries in two-dimensional topological phases. In line with previous no-go arguments, we show that subsystem symmetry fractionalization is not possible in many cases due to the additional rigid geometric structure of the symmetries. However, we identify a new mechanism that allows fractionalization, involving global relations between macroscopically many symmetry generators. We find that anyons can fractionalize such relations, meaning that the total charge carried under all generators involved in the global relation is non-trivial, despite the fact that these generators multiply to the identity. We first discuss the general algebraic framework needed to characterize this new type of fractionalization, and then explore this framework using a number of exactly solvable models with $\mathbb{Z}_2$ topological order, including models having line and fractal symmetries. These models all showcase another necessary property of subsystem symmetry fractionalization: fractionalized anyons must have restricted mobility when the symmetry is enforced, such that they are confined to a single line or point in the case of line and fractal symmetries, respectively. Looking forward, we expect that our identification of the importance of global relations in fractionalization will hold significance for the classification of phases with subsystem symmetries in all dimensions.
description: 17 pages
FD-SLAM: 3-D Reconstruction Using Features and Dense Matching
Creators: name: Yang, Xingrui
name: Ming, Yuhang
name: Cui, Zhaopeng
name: Calway, Andrew
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: It is well known that visual SLAM systems based on dense matching are locally accurate but are also susceptible to long-term drift and map corruption. In contrast, feature matching methods can achieve greater long-term consistency but can suffer from inaccurate local pose estimation when feature information is sparse. Based on these observations, we propose an RGB-D SLAM system that leverages the advantages of both approaches: using dense frame-to-model odometry to build accurate sub-maps and on-the-fly feature-based matching across sub-maps for global map optimisation. In addition, we incorporate a learning-based loop closure component based on 3-D features which further stabilises map building. We have evaluated the approach on indoor sequences from public datasets, and the results show that it performs on par or better than state-of-the-art systems in terms of map reconstruction quality and pose estimation. The approach can also scale to large scenes where other systems often fail.
Resilient Modulus and Permanent Deformation Responses of Geogrid-Reinforced Construction and Demolition Materials
Creators: name: Rahman, M. A.
name: Arulrajah, Arul
name: Jegatheesan, Piratheepan
name: Bo, M. W.
name: Imteaz, Monzur
Publisher: name: Swinburne
Year: 2024
Subjects: classificationCode: 400502
subject: Civil geotechnical engineering

description: Extensive amounts of natural quarry aggregates are currently being used in road and pavement applications. The use of construction and demolition (C&D) materials such as recycled concrete aggregate (RCA), crushed brick (CB) and reclaimed asphalt pavement (RAP) as an alternative to quarry aggregates has generated interest in recent years, particularly as a pavement base or subbase material. However, the resilient moduli responses and performance of these C&D materials reinforced with geogrids under repeated loads has yet to be established. This research investigates the resilient moduli (MR) and permanent deformation characteristics of C&D materials reinforced with biaxial and triaxial geogrids with the use of a repeated load triaxial (RLT) equipment. The effects of varying deviatoric stress on the resilient modulus of unreinforced and geogrid-reinforced C&D materials were also investigated. Regression analyses of resilient modulus test results were performed using the two and three-parameter models. The MR properties of the geogrid-reinforced RCA and CB were found to be higher than that of the respective unreinforced material. The MR value of RCA+Biaxial increased by 24% and of RCA+Triaxial increased by 34% when compared with unreinforced RCA. The permanent deformation value obtained from RCA+Biaxial decreased by 29% and of RCA+Triaxial decreased by 36% when compared with unreinforced RCA. The MR value of CB+Biaxial increased by 16% and of CB+Triaxial increased by 55% when compared with unreinforced CB. The permanent deformation value decreased by 29% and 37% for CB+Biaxial and CB+Triaxial respectively when compared with unreinforced CB material. The incorporation of geogrids was found to have significant effects on the resilient modulus and permanent deformation characteristics of C&D materials. The three parameter resilient moduli model was found to provide a good fit for the geogrid-reinforced C&D materials.
Finite-size scaling of critical avalanches
Creators: name: Yadav, Avinash Chand
name: Quadir, Abdul
name: Jafri, Haider Hasan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We examine probability distribution for avalanche sizes observed in self-organized critical systems. While a power-law distribution with a cutoff because of finite system size is typical behavior, a systematic investigation reveals that it may decrease on increasing the system size at a fixed avalanche size. We implement the scaling method and identify scaling functions. The data collapse ensures a correct estimation of the critical exponents and distinguishes two exponents related to avalanche size and system size. Our simple analysis provides striking implications. While the exact value for avalanches size exponent remains elusive for the prototype sandpile on a square lattice, we suggest the exponent should be 1. The simulation results represent that the distribution shows a logarithmic system size dependence, consistent with the normalization condition. We also argue that for train or Oslo sandpile model with bulk drive, the avalanche size exponent is slightly less than 1 which is significantly different from the previous estimate 1.11.
description: 5 pages 4 figures
Periodic array of Bose-Einstein condensates in a magnetic lattice
Creators: name: Jose, Smitha
name: Surendran, P.
name: Wang, Y.
name: Herrera Benzaquen, Ivan
name: Krzemien, L.
name: Whitlock, S.
name: McLean, Russell
name: Sidorov, Andrei
name: Hannaford, Peter
Publisher: name: Swinburne
Year: 2024

description: We report the realization of a periodic array of Bose-Einstein condensates (BECs) of Rb-87 F = 1 atoms trapped in a one-dimensional magnetic lattice close to the surface of an atom chip. A clear signature for the onset of BEC in the magnetic lattice is provided by in situ site-resolved radio-frequency spectra, which exhibit a pronounced bimodal distribution consisting of a narrow component characteristic of a BEC together with a broad thermal cloud component. Similar bimodal distributions are found for various sites across the magnetic lattice. The realization of a periodic array of BECs in a magnetic lattice represents a major step towards the implementation of magnetic lattices for quantum simulation of many-body condensed matter phenomena in lattices of complex geometry and arbitrary period.
NLO QCD corrections to full off-shell production of $t\bar{t}Z$ including leptonic decays
Creators: name: Bevilacqua, Giuseppe
name: Hartanto, Heribertus Bayu
name: Kraus, Manfred
name: Nasufi, Jasmina
name: Worek, Malgorzata
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Motivated by ongoing new physics searches in the top-quark sector at the Large Hadron Collider we report on the calculation of NLO QCD corrections to the Standard Model $pp\to t\bar{t}Z+X$ process in the tetra-lepton decay channel. This calculation is based on the matrix elements for the $e^+ ν_e\, μ^-\barν_μ\, b\bar{b} \,τ^+τ^-$ final state and includes all resonant and non-resonant Feynman diagrams, interferences and off-shell effects of the top quark as well as the $W$ and $Z$ gauge bosons. Also incorporated are photon-induced contributions. As it is customary for such studies, we show theoretical predictions for both fixed and dynamical factorisation and renormalisation scale choices and different PDF sets. Furthermore, we study the main theoretical uncertainties that are associated with neglected higher-order terms in the perturbative expansion and with the parameterisation of the PDF sets. In order to investigate the size of off-shell effects and higher-order corrections in top-quark decays, we perform a second computation for this process, which is based on the narrow-width-approximation where the top quarks, $W$ and $Z$ gauge bosons are kept on-shell. Results are given for the integrated and differential fiducial cross sections for the LHC Run II center-of-mass energy of $13$ TeV.
description: 33 pages, 12 figures, 7 tables, version to appear in JHEP
Gerlumph data release 1: High-resolution cosmological microlensing magnification maps and eResearch tools
Creators: name: Vernardos, G.
name: Fluke, Christopher
name: Bate, N. F.
name: Croton, Darren
Publisher: name: Swinburne
Year: 2024
Subjects: classificationCode: 510103
subject: Cosmology and extragalactic astronomy

description: As synoptic all-sky surveys begin to discover new multiply lensed quasars, the flow of data will enable statistical cosmological microlensing studies of sufficient size to constrain quasar accretion disc and supermassive black hole properties. In preparation for this new era, we are undertaking the GPU-Enabled, High Resolution cosmological MicroLensing parameter survey (GERLUMPH). We present here the GERLUMPH Data Release 1, which consists of 12342 high resolution cosmological microlensing magnification maps and provides the first uniform coverage of the convergence, shear and smooth matter fraction parameter space. We use these maps to perform a comprehensive numerical investigation of the mass-sheet degeneracy, finding excellent agreement with its predictions. We study the effect of smooth matter on microlensing induced magnification fluctuations. In particular, in the minima and saddle-point regions, fluctuations are enhanced only along the critical line, while in the maxima region they are always enhanced for high smooth matter fractions ( 0:9). We describe our approach to data management, including the use of an SQL database with a Web interface for data access and online analysis, obviating the need for individuals to download large volumes of data. In combination with existing observational databases and online applications, the GERLUMPH archive represents a fundamental component of a new microlensing eResearch cloud. Our maps and tools are publicly available at http://gerlumph.swin.edu.au/.
Primary orbital lymphoma
Creators: name: CASES SUSARTE, IRENE
Publisher: name: EURORAD
Year: 2018
Subjects: subject: Abdomen
subject: Haematologic
subject: Head and neck
subject: CT
subject: MR
subject: MR-Diffusion/Perfusion
subject: Education
subject: Lymphoma
subject: Neoplasia

description: Clinical History Image Findings Discussion Find Diagnosis Differential Diagnosis
description: male, 69 years
description: Clinical History: A 69-year-old man presented to the Ophthalmology Department of our hospital with right orbital swelling, bilateral painless diplopia and mild right proptosis for 11 months. He had no relevant medical history. Fundoscopy was normal and other ophthalmologic... Final Diagnosis: Orbital adnexal MALT lymphoma
Anastrophyllopsis subcomplicata Vana et L. Soderstr., Phytotaxa
Creators: name: Söderström, Lars
name: Hagborg, Anders
name: Konrat, Matt Von
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Plantae
Marchantiophyta
Jungermanniopsida
Jungermanniales
Anastrophyllaceae
Anastrophyllopsis
Anastrophyllopsis subcomplicata

description: Anastrophyllopsis subcomplicata (Lehm. et Lindenb.) Váňa et L.Söderstr.,
Phytotaxa 81 (1): 16, 2013 (see Váňa et al. 2013f). BASIONYM: Jungermannia subcomplicata Lehm. et Lindenb., Nov. Stirp. Pug. 7: 4, 1838 (see Lehmann 1838).
description: Published as part of Söderström, Lars, Hagborg, Anders & Konrat, Matt Von, 2016, Early Land Plants Today: Index of Liverworts & Hornworts 2013 - 2014, pp. 133-185 in Phytotaxa 269 (3) on page 136, DOI: 10.11646/phytotaxa.269.3.1, http://zenodo.org/record/4779693
Direct visualization of percolating metal-insulator transition in V2O3 using scanning microwave impedance microscopy
Creators: name: Lin, Weiyan
name: Zhang, Huanyu
name: Kalcheim, Yoav
name: Zhou, Xinchen
name: Yang, Fubao
name: Shi, Yang
name: Feng, Yang
name: Wang, Yihua
name: Huang, Jiping
name: Schuller, Ivan K.
name: Zhou, Xiaodong
name: Shen, Jian
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Using the extensively studied V2O3 as a prototype system, we investigate the role of percolation in metal-insulator transition (MIT). We apply scanning microwave impedance microscopy to directly determine the metallic phase fraction p and relate it to the macroscopic conductance G, which shows a sudden jump when p reaches the percolation threshold. Interestingly, the conductance G exhibits a hysteretic behavior against p, suggesting two different percolating processes upon cooling and warming. Based on our image analysis and model simulation, we ascribe such hysteretic behavior to different domain nucleation and growth processes between cooling and warming, which is likely caused by the decoupled structural and electronic transitions in V2O3 during MIT. Our work provides a microscopic view of how the interplay of structural and electronic degrees of freedom affects MIT in strongly correlated systems.
Effiziente Numerische Lösung Eines Optimalsteuerungsproblems Für Die Abkühlung Von Stahlprofilen
Creators: name: Saak, Jens
Publisher: name: Zenodo
Year: 2003

description: This thesis presents a linear-quadratic regulator (LQR) design for a heat transfer model describing the cooling process of steel profiles in a rolling mill. The primary focus is the implementation of the problem and practical computation of a feedback control for a linearization of the nonlinear heat transfer model. Moreover the thesis presents first ideas to use local linearizations to treat the nonlinear equation with a regulator approach. Numerical results based on a spatial finite element discretization and a numerical algorithm for solving large-scale algebraic Riccati equations are presented and applied for both the linear and nonlinear models.
Probabilistic simulation of mesoscopic "schrödinger cat" states
Creators: name: Opanchuk, Bogdan
name: Rosales Zarate, Laura
name: Reid, Margaret
name: Drummond, Peter
Publisher: name: Swinburne
Year: 2024

description: We carry out probabilistic phase-space sampling of mesoscopic Schroedinger cat quantum states, demonstrating multipartite Bell violations for up to 60 qubits. We use states similar to those generated in photonic and ion-trap experiments. These results show that mesoscopic quantum superpositions are directly accessible to probabilistic sampling, and we analyze the properties of sampling errors. We also demonstrate dynamical simulation of super-decoherence in ion traps. Our computer simulations can be either exponentially faster or slower than experiment, depending on the correlations measured.
Anastrophyllopsis revoluta Vana et L. Soderstr., Phytotaxa
Creators: name: Söderström, Lars
name: Hagborg, Anders
name: Konrat, Matt Von
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Plantae
Marchantiophyta
Jungermanniopsida
Jungermanniales
Anastrophyllaceae
Anastrophyllopsis
Anastrophyllopsis revoluta

description: Anastrophyllopsis revoluta (Steph.) Váňa et L.Söderstr.,
Phytotaxa 81 (1): 16, 2013 (see Váňa et al. 2013f). BASIONYM: Anastrophyllum revolutum Steph., Hedwigia 32 (3): 139, 1893 (see Stephani 1893b).
description: Published as part of Söderström, Lars, Hagborg, Anders & Konrat, Matt Von, 2016, Early Land Plants Today: Index of Liverworts & Hornworts 2013 - 2014, pp. 133-185 in Phytotaxa 269 (3) on page 136, DOI: 10.11646/phytotaxa.269.3.1, http://zenodo.org/record/4779693
Fabrication and replication of micro-optical structures for growth of GaN-based light emitting diodes
Creators: name: Gervinskas, G.
name: Seniutinas, G.
name: Vijayakumar, A.
name: Bhattacharya, S.
name: Jelmakas, E.
name: Kadys, A.
name: Tomašiunas, R.
name: Juodkazis, Saulius
Publisher: name: Swinburne
Year: 2024

description: Abstract not reproduced here by request of the publisher. The text is available from: http://dx.doi.org/10.1117/12.2033709
Quasinormal modes of self-dual black holes in loop quantum gravity
Creators: name: Momennia, Mehrab
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the evolution of a test scalar field on the background geometry of a regular loop quantum black hole (LQBH) characterized by two loop quantum gravity (LQG) correction parameters, namely, the polymeric function and the minimum area gap. The calculations of quasinormal frequencies in asymptotically flat spacetime are performed with the help of higher-order WKB expansion and related Padé approximants, the improved asymptotic iteration method (AIM), and time-domain integration. The effects of free parameters of the theory on the quasinormal modes are studied and deviations from those of the Schwarzschild BHs are investigated. We show that the LQG correction parameters have opposite effects on the quasinormal frequencies and the LQBHs are dynamically stable.
description: 15 pages, 6 captioned figures, and 16 tables. Comments are welcome; V2: Minor changes to match published version, references added
Anastrophyllum minutum var. himalayanum S. Srivast., S. C. Srivast. et K. K. Rawat
Creators: name: Söderström, Lars
name: Hagborg, Anders
name: Konrat, Matt Von
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Plantae
Marchantiophyta
Jungermanniopsida
Jungermanniales
Anastrophyllaceae
Anastrophyllum
Anastrophyllum minutum
Anastrophyllum minutum var. himalayanum s.srivast., s.c.srivast. et k.k.rawat

description: Anastrophyllum minutum var. himalayanum S.Srivast., S.C.Srivast. et K.K.Rawat,
Nelumbo 55: 126, 2013 (see Srivastava et al. 2013).
TYPE: “ India, Uttarakhand, Chamoli, Ghangharia, May 22, 1980, S.C. Srivastava, D. Kumar & D.K. Singh 4325/80 (Holo: LWU)”.
description: Published as part of Söderström, Lars, Hagborg, Anders & Konrat, Matt Von, 2016, Early Land Plants Today: Index of Liverworts & Hornworts 2013 - 2014, pp. 133-185 in Phytotaxa 269 (3) on page 136, DOI: 10.11646/phytotaxa.269.3.1, http://zenodo.org/record/4779693
Optoplasmonics: Hybridization in 3D
Creators: name: Rosa, Lorenzo
name: Gervinskas, G.
name: Žukauskas, A.
name: Malinauskas, M.
name: Brasselet, E.
name: Juodkazis, Saulius
name: Friend, James
name: Tan, H. Hoe
Publisher: name: Swinburne
Year: 2024

description: Abstract not reproduced here by request of the publisher. The text is available from: http://dx.doi.org/10.1117/12.2033716
Beyond the ordinary acoustoelectric effect: superluminal phenomena in the acoustic realm and phonon-mediated Bloch gain
Creators: name: Apostolakis, A.
name: Balanov, A. G.
name: Kusmartsev, F. V.
name: Alekseev, K. N.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: It has been shown that coherent phonons can be used as a potent tool for controlling and enhancing optoelectronic and transport properties of nanostructured materials. Recent studies revealed that interaction of acoustic phonons and fast-moving carriers in semiconductor heterostructures can be accompanied by electron-phonon instabilities that cause ordinary and induced Cherenkov effects. However, the development of such instabilities is still poorly understood. Our study shows that other supersonic phenomena, beyond the Cherenkov instability, are possible for non-equilibrium charge transport in the miniband semiconductor superlattices (SLs) driven by an acoustic plane wave. Using semiclassical nonperturbative methods and elements of the bifurcation theory, we find the conditions for the onset of dynamical instabilities (bifurcations) which are caused by the emission of specific SL phonons by supersonic electrons, and their back action on the electrons. Notably, the underlying radiation mechanism is connected either to normal or anomalous Doppler effects in full accordance with the Ginzburg-Frank-Tamm theory. The appearance of induced Doppler effects is also discussed in relation to the formation of electron bunches propagating through the spatially periodic structure of the SL. When the amplitude of the acoustic wave exceeds certain threshold, the dynamical instabilities developed in the system are manifested as drift velocity reversals, resonances in sound attenuation and absolute negative mobility. We demonstrate that the discovered superluminal Doppler phenomena can be utilized for tunable broadband amplification and generation of GHz-THz electromagnetic waves, which creates a ground for development of novel phononic devices.
description: 22 pages, 17 figures
Investigation of CMB constraints for dark matter-helium scattering
Creators: name: Boddy, Kimberly K.
name: Krnjaic, Gordan
name: Moltner, Stacie
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study dark matter-helium scattering in the early Universe and its impact on constraints from cosmic microwave background (CMB) anisotropy measurements. We describe possible theoretical frameworks for dark matter-nucleon interactions via a scalar, pseudoscalar, or vector mediator; such interactions give rise to hydrogen and helium scattering, with cross sections that have a power-law dependence on relative velocity. Within these frameworks, we consider three scenarios: dark matter coupling to only neutrons, to only protons, and to neutrons and protons with equal strength. For these various cases, we use \textit{Planck} 2018 temperature, polarization, and lensing anisotropy data to place constraints on dark matter scattering with hydrogen and/or helium for dark matter masses between 10 keV and 1 TeV. For any model that permits both helium and hydrogen scattering with a non-negative power-law velocity dependence, we find that helium scattering dominates the constraint for dark matter masses well above the proton mass. Furthermore, we place the first CMB constraints on dark matter that scatters dominantly/exclusively with helium in the early Universe.
description: 11 pages, 1 figure, 2 tables; v2: matches published version
CXR-FL: Deep Learning-Based Chest X-ray Image Analysis Using Federated Learning
Creators: name: Ślazyk, Filip
name: Jabłecki, Przemysław
name: Lisowska, Aneta
name: Malawski, Maciej
name: Płotka, Szymon
Publisher: name: arXiv
Year: 2022
Subjects: subject: Image and Video Processing (eess.IV)
subject: Artificial Intelligence (cs.AI)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Federated learning enables building a shared model from multicentre data while storing the training data locally for privacy. In this paper, we present an evaluation (called CXR-FL) of deep learning-based models for chest X-ray image analysis using the federated learning method. We examine the impact of federated learning parameters on the performance of central models. Additionally, we show that classification models perform worse if trained on a region of interest reduced to segmentation of the lung compared to the full image. However, focusing training of the classification model on the lung area may result in improved pathology interpretability during inference. We also find that federated learning helps maintain model generalizability. The pre-trained weights and code are publicly available at (https://github.com/SanoScience/CXR-FL).
description: Accepted at International Conference on Computational Science (ICCS) 2022, London
Ion-beam and plasma etching of a conical-pores photonic crystal for thin-film solar cell
Creators: name: Gervinskas, Gediminas
name: Rosa, Lorenzo
name: Juodkazis, Saulius
name: Friend, James
name: Tan, H. Hoe
Publisher: name: Swinburne
Year: 2024

description: Abstract not reproduced here by request of the publisher. The text is available from: http://dx.doi.org/10.1117/12.2033762
Galaxy and halo angular clustering in LCDM and Modified Gravity cosmologies
Creators: name: Drozda, Paweł
name: Hellwing, Wojciech A.
name: Bilicki, Maciej
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Using a suite of $N$-body simulations we study the angular clustering of galaxies, halos, and dark matter in $\mathrm{Λ\text{CDM}}$ and Modified Gravity (MG) scenarios. We consider two general categories of such MG models, one is the $f(R)$ gravity, and the other is the normal branch of the Dvali-Gabadadze-Porrati brane world (nDGP). To measure angular clustering we construct a set of observer-frame lightcones and resulting mock sky catalogs. We focus on the area-averaged angular correlation functions, $W_J$, and the associated reduced cumulants, $S_J\equiv W_J/W_2^{(J-1)}$, and robustly measure them up to the 9th order using counts-in-cells (CIC). We find that $0.15 < z < 0.3$ is the optimal redshift range to maximize the MG signal in our lightcones. Analyzing various scales for the two types of statistics, we identify up to 20\% relative departures in MG measurements from general relativity (GR), with varying signal significance. For the case of halos and galaxies, we find that $3$rd order statistics offer the most sensitive probe of the different structure formation scenarios, with both $W_3$ and the reduced skewness, $S_3$, reaching from $2σ$ to $4σ$ significance at angular scales $θ\sim 0.13 ^\circ$. The MG clustering of the smooth dark matter field is characterized by even stronger deviations ($\stackrel{>}{{}_\sim} 5σ$) from GR, albeit at a bit smaller scales of $θ\sim0.08^\circ$, where baryonic physics is already important. Finally, we stress out that our mock halo and galaxy catalogs are characterized by rather low surface number densities when compared to existing and forthcoming state-of-the-art photometric surveys. This opens up exciting potential for testing GR and MG using angular clustering in future applications, with even higher precision and significance than reported here.
description: 15 pages, 8 figures, 1 table
Quantum Hall states for Rydberg atoms with laser-assisted dipole-dipole interactions
Creators: name: Yang, Tian-Hua
name: Wang, Bao-Zong
name: Zhou, Xin-Chi
name: Liu, Xiong-Jun
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Rydberg atoms with dipole-dipole interactions provide intriguing platforms to explore exotic quantum many-body physics. Here we propose a novel scheme with laser-assisted dipole-dipole interactions to realize synthetic magnetic field for Rydberg atoms in a two-dimensional array configuration, which gives rise to the exotic bosonic topological states. In the presence of an external effective Zeeman splitting gradient, the dipole-dipole interaction between neighboring Rydberg atoms along the gradient direction is suppressed, but can be assisted when Raman lights are applied to compensate the energy difference. With this scheme we generate a controllable uniform magnetic field for the complex spin-exchange coupling model, which can be mapped to hard core bosons coupling to an external synthetic magnetic field. The highly tunable flat Chern bands of the hard core bosons are then obtained and moreover, the bosonic fractional quantum Hall states can be achieved with experimental feasibility. This work opens an avenue for the realization of the highly-sought-after bosonic topological orders using Rydberg atoms.
description: 5 pages, 4 figures, plus Supplementary Material. Discussions are updated, Fig. 3 and Fig. 4 are updated