cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Large phonon-drag enhancement induced by narrow quantum confinement at the LaAlO3/SrTiO3 interface
Creators: name: Pallecchi, I.
name: Telesio, F.
name: Marre', D.
name: Li, D.
name: Gariglio, S.
name: Triscone, J. -M.
name: Filippetti, A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The thermoelectric power of the two-dimensional electron system (2DES) at the LaAlO3/SrTiO3 interface is explored below room temperature, in comparison with that of Nb-doped SrTiO3 single crystals. For the interface we find a region below T =50 K where thermopower is dominated by phonon-drag, whose amplitude is hugely amplified with respect to the corresponding bulk value, reaching values ~mV/K and above. The phonon-drag enhancement at the interface is traced back to the tight carrier confinement of the 2DES, and represents a sharp signature of strong electron-acoustic phonon coupling at the interface.
Numerical investigation of the nonlinear interaction between the sinusoidal motion-induced and gust-induced forces acting on bridge decks
Creators: name: Tesfaye, Samuel
name: Kavrakov, Igor
name: Morgenthal, Guido
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: With the increasing spans and complex deck shapes, aerodynamic nonlinearity becomes a crucial concern in the design of long-span bridges. This paper investigates the nonlinear interaction between the gust-induced and motion-induced forces acting on bridge decks using the Vortex Particle Method (VPM) as a Computational Fluid Dynamics (CFD) method. This nonlinear interaction is complex and intractable by the conventional linear semi-analytical models that employ the superposition principle. To excite such interaction, a sinusoidally oscillating bridge deck is subjected to sinusoidal vertical gusts. Two distinct aspects are studied: The influence of large-scale sinusoidal vertical gusts on the shear layer of a moving body and the nonlinear dependence of the aerodynamic forces on the effective angle of attack. For the latter, the resultant aerodynamic forces based on a linear semi-analytical and a CFD model are compared for the same effective angle of attack due to sinusoidal gust and motion. The methodology is first employed to verify the linear behavior of a flat plate and then study the nonlinear behavior of two bridge decks. The results show that the linear superposition principle holds for streamlined bridge decks with minimal shear layer instability. However, this principle may not be valid for bluff bridge decks due to strong separation vortices that dictate the shear layer, which induces nonlinearity in the aerodynamic forces manifested through amplitude difference in the first harmonic and emergence of higher-order harmonics. The outcome of this study aims to provide a deeper understanding of the complex nonlinear fluid-structure interaction occurring for bluff bodies subjected to motion and free-stream gusts.
description: 20 pages, 36 figures
Single and double production of the Higgs boson at hadron and lepton colliders in minimal composite Higgs models
Creators: name: Kanemura, Shinya
name: Kaneta, Kunio
name: Machida, Naoki
name: Odori, Shinya
name: Shindou, Tetsuo
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In the composite Higgs models, originally proposed by Georgi and Kaplan, the Higgs boson is a pseudo Nambu-Goldstone boson (pNGB) of spontaneous breaking of a global symmetry. In the minimal version of such models, global SO(5) symmetry is spontaneously broken to SO(4), and the pNGBs form an isospin doublet field, which corresponds to the Higgs doublet in the Standard Model (SM). Predicted coupling constants of the Higgs boson can in general deviate from the SM predictions, depending on the compositeness parameter. The deviation pattern is determined also by the detail of the matter sector. We comprehensively study how the model can be tested via measuring single and double production processes of the Higgs boson at LHC and future electron-positron colliders. The possibility to distinguish the matter sector among the minimal composite Higgs models is also discussed. In addition, we point out differences in the cross section of double Higgs boson production from the prediction in other new physics models.
description: 24 pages, 13 figures
The Nature of CME-Flare Associated Coronal Dimming
Creators: name: Cheng, J. X.
name: Qiu, J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Coronal mass ejections (CMEs) are often accompanied by coronal dimming evident in extreme ultraviolet (EUV) and soft X-ray observations. The locations of dimming are sometimes considered to map footpoints of the erupting flux rope. As the emitting material expands in the corona, the decreased plasma density leads to reduced emission observed in spectral and irradiance measurements. Therefore, signatures of dimming may reflect properties of CMEs in the early phase of its eruption. In this study, we analyze the event of flare, CME, and coronal dimming on December 26, 2011. We use the data from the Atmospheric Imaging Assembly (AIA) on Solar Dynamics Observatories (SDO) for disk observations of the dimming, and analyze images taken by EUVI, COR1, and COR2 onboard the Solar Terrestrial Relations Observatories to obtain the height and velocity of the associated CMEs observed at the limb. We also measure magnetic reconnection rate from flare observations. Dimming occurs in a few locations next to the flare ribbons, and it is observed in multiple EUV passbands. Rapid dimming starts after the onset of fast reconnection and CME acceleration, and its evolution well tracks the CME height and flare reconnection. The spatial distribution of dimming exhibits cores of deep dimming with a rapid growth, and their light curves are approximately linearly scaled with the CME height profile. From the dimming analysis, we infer the process of the CME expansion, and estimate properties of the CME.
description: 31 pages, 10 figures
Some remarks on quantum mechanics in a curved spacetime, especially for a Dirac particle
Creators: name: Arminjon, Mayeul
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences
subject: 81Q35, 81Q05, 81R20

description: Some precisions are given about the definition of the Hamiltonian operator H and its transformation properties, for a linear wave equation in a general spacetime. In the presence of time-dependent unitary gauge transformations, H as an operator depends on the gauge choice. The other observables of QM and their rates also become gauge-dependent unless a proper account for the gauge choice is done in their definition. We show the explicit effect of these non-uniqueness issues in the case of the Dirac equation in a general spacetime with the Schwinger gauge. We show also in detail why, the meaning of the energy in QM being inherited from classical Hamiltonian mechanics, the energy operator and its mean values ought to be well defined in a general spacetime.
description: 25 pages, conforms exactly with the published version. arXiv admin note: text overlap with arXiv:1312.6707
LG4AV: Combining Language Models and Graph Neural Networks for Author Verification
Creators: name: Stubbemann, Maximilian
name: Stumme, Gerd
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences
subject: I.2.7; I.2.6

description: The automatic verification of document authorships is important in various settings. Researchers are for example judged and compared by the amount and impact of their publications and public figures are confronted by their posts on social media platforms. Therefore, it is important that authorship information in frequently used web services and platforms is correct. The question whether a given document is written by a given author is commonly referred to as authorship verification (AV). While AV is a widely investigated problem in general, only few works consider settings where the documents are short and written in a rather uniform style. This makes most approaches unpractical for online databases and knowledge graphs in the scholarly domain. Here, authorships of scientific publications have to be verified, often with just abstracts and titles available. To this point, we present our novel approach LG4AV which combines language models and graph neural networks for authorship verification. By directly feeding the available texts in a pre-trained transformer architecture, our model does not need any hand-crafted stylometric features that are not meaningful in scenarios where the writing style is, at least to some extent, standardized. By the incorporation of a graph neural network structure, our model can benefit from relations between authors that are meaningful with respect to the verification process. For example, scientific authors are more likely to write about topics that are addressed by their co-authors and twitter users tend to post about the same subjects as people they follow. We experimentally evaluate our model and study to which extent the inclusion of co-authorships enhances verification decisions in bibliometric environments.
description: 9 pages, 1 figure
Epidemiological studies of suicidal behaviour in Australia
Creators: name: Oliver., Robert Graeme
Publisher: name: Monash University
Year: 2021

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.
Modelling Arbitrary Complex Dielectric Properties -- an automated implementation for gprMax
Creators: name: Majchrowska, Sylwia
name: Giannakis, Iraklis
name: Warren, Craig
name: Giannopoulos, Antonios
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: Computational Physics (physics.comp-ph)
subject: Geophysics (physics.geo-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: There is a need to accurately simulate materials with complex electromagnetic properties when modelling Ground Penetrating Radar (GPR), as many objects encountered with GPR contain water, e.g. soils, curing concrete, and water-filled pipes. One of widely-used open-source software that simulates electromagnetic wave propagation is gprMax. It uses Yee's algorithm to solve Maxwell's equations with the Finite-Difference Time-Domain (FDTD) method. A significant drawback of the FDTD method is the limited ability to model materials with dispersive properties, currently narrowed to specific set of relaxation mechanisms, namely multi-Debye, Drude and Lorentz media. Consequently, modelling any arbitrary complex material should be done by approximating it as a combination of these functions. This paper describes work carried out as part of the Google Summer of Code (GSoC) programme 2021 to develop a new module within gprMax that can be used to simulate complex dispersive materials using multi-Debye expansions in an automatic manner. The module is capable of modelling Havriliak-Negami, Cole-Cole, Cole-Davidson, Jonscher, Complex-Refractive Index Models, and indeed any arbitrary dispersive material with real and imaginary permittivity specified by the user.
description: 5 pages, 3 figures
EFSA Climate Suitability Analysis of Elasmopalpus lignosellus
Creators: name: Eugenio, Rossi
name: Caterina, Campese
name: Muñoz Guajardo Irene
name: Stancanelli Giuseppe
name: Andrea, Maiorano
Publisher: name: Zenodo
Year: 2023
Subjects: subject: climate suitability
subject: pest risk assessment
subject: pest distribution
subject: Elasmopalpus lignosellus
subject: http://id.agrisemantics.org/gacs/C731
subject: http://id.agrisemantics.org/gacs/C1470

description: Climate suitability analysis allows to identify regions where climate is likely to support the establishment of a pest. This analysis is typically based on pest ecophysiology and/or distribution according to the different methodology/models available. In the context of the related EFSA pest risk assessment, a climate suitability analysis was performed for Elasmopalpus lignosellus. The current publication includes: (i) a report on the extensive literature search conducted to retrieve data and information on the pest observed distribution and ecophysiology parameters, and on the methodology of the climate suitability analysis, (ii) an excel file including metadata on the literature analysed, (iii) an excel file including the observed distribution of the pest, (iv) maps related to the climate suitability analysis of Elasmopalpus lignosellus, (v) a Geopackage file including the layers related to the climate suitability analysis.
description: EU; en; PDF; plants@efsa.europa.eu
Improving Transferability of Domain Adaptation Networks Through Domain Alignment Layers
Creators: name: Silva, Lucas Fernando Alvarenga e
name: Pedronette, Daniel Carlos Guimarães
name: Faria, Fábio Augusto
name: Papa, João Paulo
name: Almeida, Jurandy
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Deep learning (DL) has been the primary approach used in various computer vision tasks due to its relevant results achieved on many tasks. However, on real-world scenarios with partially or no labeled data, DL methods are also prone to the well-known domain shift problem. Multi-source unsupervised domain adaptation (MSDA) aims at learning a predictor for an unlabeled domain by assigning weak knowledge from a bag of source models. However, most works conduct domain adaptation leveraging only the extracted features and reducing their domain shift from the perspective of loss function designs. In this paper, we argue that it is not sufficient to handle domain shift only based on domain-level features, but it is also essential to align such information on the feature space. Unlike previous works, we focus on the network design and propose to embed Multi-Source version of DomaIn Alignment Layers (MS-DIAL) at different levels of the predictor. These layers are designed to match the feature distributions between different domains and can be easily applied to various MSDA methods. To show the robustness of our approach, we conducted an extensive experimental evaluation considering two challenging scenarios: digit recognition and object classification. The experimental results indicated that our approach can improve state-of-the-art MSDA methods, yielding relative gains of up to +30.64% on their classification accuracies.
The VIMOS Public Extragalactic Redshift Survey (VIPERS). The coevolution of galaxy morphology and colour to z~1
Creators: name: Krywult, J.
name: Tasca, L. A. M.
name: Pollo, A.
name: Vergani, D.
name: Bolzonella, M.
name: Davidzon, I.
name: Iovino, A.
name: Gargiulo, A.
name: Haines, C. P.
name: Scodeggio, M.
name: Guzzo, L.
name: Zamorani, G.
name: Garilli, B.
name: Granett, B. R.
name: de la Torre, S.
name: Abbas, U.
name: Adami, C.
name: Bottini, D.
name: Cappi, A.
name: Cucciati, O.
name: Franzetti, P.
name: Fritz, A.
name: Brun, V. Le
name: Fèvre, O. Le
name: Maccagni, D.
name: Małek, K.
name: Marulli, F.
name: Polletta, M.
name: Tojeiro, R.
name: Zanichelli, A.
name: Arnouts, S.
name: Bel, J.
name: Branchini, E.
name: De Lucia, G.
name: Ilbert, O.
name: McCracken, H. J.
name: Moscardini, L.
name: Takeuchi, T. T.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We explore the evolution of the statistical distribution of galaxy morphological properties and colours over the redshift range $0.5
description: 18 pages, 13 figures
Joint CMB and BBN Constraints on Light Dark Sectors with Dark Radiation
Creators: name: Giovanetti, Cara
name: Lisanti, Mariangela
name: Liu, Hongwan
name: Ruderman, Joshua T.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Dark sectors provide a compelling theoretical framework for thermally producing sub-GeV dark matter, and motivate an expansive new accelerator and direct-detection experimental program. We demonstrate the power of constraining such dark sectors using the measured effective number of neutrino species, $N_\text{eff}$, from the Cosmic Microwave Background (CMB) and primordial elemental abundances from Big Bang Nucleosynthesis (BBN). As a concrete example, we consider a dark matter particle of arbitrary spin that interacts with the Standard Model via a massive dark photon, accounting for an arbitrary number of light degrees of freedom in the dark sector. We exclude dark matter masses below $\sim$ 4 MeV at 95% confidence for all dark matter spins and dark photon masses. These bounds hold regardless of additional new light, inert degrees of freedom in the dark sector, and for dark matter-electron scattering cross sections many orders of magnitude below current experimental constraints. The strength of these constraints will only continue to improve with future CMB experiments.
description: 5+22 pages, 3+1 figures. Updated to match PRL version
Thermally-induced magnetic order from glassiness in elemental neodymium
Creators: name: Verlhac, Benjamin
name: Niggli, Lorena
name: Bergman, Anders
name: Kamber, Umut
name: Bagrov, Andrey
name: Iuşan, Diana
name: Nordström, Lars
name: Katsnelson, Mikhail I.
name: Wegner, Daniel
name: Eriksson, Olle
name: Khajetoorians, Alexander A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Temperature in thermodynamics is synonymous with disorder, and responsible for ultimately destroying ordered phases. Here, we show an unusual magnetic transition where, with increasing the temperature of elemental neodymium, long-range multi-Q magnetic order emerges from a self-induced spin glass. Using temperature-dependent spin-polarized scanning tunneling microscopy, we characterize the local Q order in the spin-Q glass phase and quantify the emergence of long-range multi-Q order with increasing temperature. We develop two distinct analysis tools, which enable the quantification of the glass transition temperature, based on measured spatially-dependent magnetization. We compare these observations with atomic spin dynamics simulations, which reproduce the qualitative observation of a phase transition from a low-temperature spin glass phase to an intermediate ordered multi-Q phase. These simulations trace the origin of the unexpected high temperature order in weakened frustration driven by temperature-dependent sublattice correlations. These findings constitute an example of order from disorder and provide a rich platform to study magnetization dynamics in a self-induced spin glass.
Plasmon effects in photoemission
Creators: name: Kaminski, J. Z.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We develop the concept of scattering matrix and we use it to perform stable numerical calculations of photo-emission from nano-tips. Electrons move in an external space and time dependent nonperturbative electric field. We apply our algorithm for different strengths and spatial configurations of the field.
description: 7 pages, 2 figures. arXiv admin note: substantial text overlap with arXiv:1101.0360
A study of sympathetic preganglionic neurons in the thoracic spinal cord of the cat
Creators: name: Oldfield., Brian
Publisher: name: Monash University
Year: 2021

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.
Unveiling Hidden Physics at the LHC
Creators: name: Fischer, Oliver
name: Mellado, Bruce
name: Antusch, Stefan
name: Bagnaschi, Emanuele
name: Banerjee, Shankha
name: Beck, Geoff
name: Belfatto, Benedetta
name: Bellis, Matthew
name: Berezhiani, Zurab
name: Blanke, Monika
name: Capdevila, Bernat
name: Cheung, Kingman
name: Crivellin, Andreas
name: Desai, Nishita
name: Dev, Bhupal
name: Godbole, Rohini
name: Han, Tao
name: Harris, Philip
name: Hoferichter, Martin
name: Kirk, Matthew
name: Kulkarni, Suchita
name: Lange, Clemens
name: Lassila-Perini, Kati
name: Liu, Zhen
name: Mahmoudi, Farvah
name: Manzari, Claudio Andrea
name: Marzocca, David
name: Mukhopadhyaya, Biswarup
name: Pich, Antonio
name: Ruan, Yifeng
name: Schnell, Luc
name: Thaler, Jesse
name: Westhoff, Susanne
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The field of particle physics is at the crossroads. The discovery of a Higgs-like boson completed the Standard Model (SM), but the lacking observation of convincing resonances Beyond the SM (BSM) offers no guidance for the future of particle physics. On the other hand, the motivation for New Physics has not diminished and is, in fact, reinforced by several striking anomalous results in many experiments. Here we summarise the status of the most significant anomalies, including the most recent results for the flavour anomalies, the multi-lepton anomalies at the LHC, the Higgs-like excess at around 96 GeV, and anomalies in neutrino physics, astrophysics, cosmology, and cosmic rays. While the LHC promises up to 4/ab of integrated luminosity and far-reaching physics programmes to unveil BSM physics, we consider the possibility that the latter could be tested with present data, but that systemic shortcomings of the experiments and their search strategies may preclude their discovery for several reasons, including: final states consisting in soft particles only, associated production processes, QCD-like final states, close-by SM resonances, and SUSY scenarios where no missing energy is produced. New search strategies could help to unveil the hidden BSM signatures, devised by making use of the CERN open data as a new testing ground. We discuss the CERN open data with its policies, challenges, and potential usefulness for the community. We showcase the example of the CMS collaboration, which is the only collaboration regularly releasing some of its data. We find it important to stress that individuals using public data for their own research does not imply competition with experimental efforts, but rather provides unique opportunities to give guidance for further BSM searches by the collaborations. Wide access to open data is paramount to fully exploit the LHCs potential.
description: Whitepaper including input from the workshop "Unveiling Hidden Physics Beyond the Standard Model at the LHC" (1-3 March 2021, online), 70 pages plus references, 17 figures, 7 tables
Nonlinear terahertz Néel spin-orbit torques in antiferromagnetic Mn$_2$Au
Creators: name: Behovits, Yannic
name: Chekhov, Alexander L.
name: Bodnar, Stanislav Yu.
name: Gueckstock, Oliver
name: Reimers, Sonka
name: Seifert, Tom S.
name: Wolf, Martin
name: Gomonay, Olena
name: Kläui, Mathias
name: Jourdan, Martin
name: Kampfrath, Tobias
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Antiferromagnets have large potential for ultrafast coherent switching of magnetic order with minimum heat dissipation. In novel materials such as Mn$_2$Au and CuMnAs, electric rather than magnetic fields may control antiferromagnetic order by Néel spin-orbit torques (NSOTs), which have, however, not been observed on ultrafast time scales yet. Here, we excite Mn$_2$Au thin films with phase-locked single-cycle terahertz electromagnetic pulses and monitor the spin response with femtosecond magneto-optic probes. We observe signals whose symmetry, dynamics, terahertz-field scaling and dependence on sample structure are fully consistent with a uniform in-plane antiferromagnetic magnon driven by field-like terahertz NSOTs with a torkance of (150$\pm$50) cm$^2$/A s. At incident terahertz electric fields above 500 kV/cm, we find pronounced nonlinear dynamics with massive Néel-vector deflections by as much as 30°. Our data are in excellent agreement with a micromagnetic model which indicates that fully coherent Néel-vector switching by 90° within 1 ps is within close reach.
description: 16 pages, 4 figures
Cardiovascular reactivity in renal hypertensive rats : effect of pregnancy
Creators: name: Okuniewski., Rachel
Publisher: name: Monash University
Year: 2021

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 CNOT Gate in a Glass Chip
Creators: name: Alsing, Paul M.
name: Kreymerman, Grigoriy
name: Miller, Warner A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In our earlier work we posited that simple quantum gates and quantum algorithms can be designed utilizing the diffraction phenomena of a photon within a multiplexed holographic element. The quantum eigenstates we use are the photon's transverse linear momentum (LM) as measured by the number of waves of tilt across the aperture. Two properties of linear optical quantum computing (LOQC) within the circuit model make this approach attractive. First, any conditional measurement can be commuted in time with any unitary quantum gate; and second, photon entanglement can be encoded as a superposition state of a single photon in a higher-dimensional state space afforded by LM. We describe here our experimental results for construction a controlled NOT (CNOT) gate logic within a holographic medium, and present the quantum state tomography for this device. Our theoretical and numerical results indicate that OptiGrate's photo-thermal refractive (PTR) glass is an enabling technology. This work has been grounded on coupled-mode theory and numerical simulations, all with parameters consistent with PTR glass. We discuss the strengths (high efficiencies, robustness to environment) and limitations (scalability, crosstalk) of this technology. While not scalable, the utility and robustness of such optical elements for broader quantum information processing applications can be substantial.
description: 11 pages, 6 figures. Quantum Information and Computation XIII, edited by Eric Donkor, Andrew R. Pirich, Michael Hayduk, Proc. of SPIE Vol. 9500, 95001F, 2015. arXiv admin note: substantial text overlap with arXiv:1112.3489
Curriculum Learning for Graph Neural Networks: A Multiview Competence-based Approach
Creators: name: Vakil, Nidhi
name: Amiri, Hadi
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: A curriculum is a planned sequence of learning materials and an effective one can make learning efficient and effective for both humans and machines. Recent studies developed effective data-driven curriculum learning approaches for training graph neural networks in language applications. However, existing curriculum learning approaches often employ a single criterion of difficulty in their training paradigms. In this paper, we propose a new perspective on curriculum learning by introducing a novel approach that builds on graph complexity formalisms (as difficulty criteria) and model competence during training. The model consists of a scheduling scheme which derives effective curricula by accounting for different views of sample difficulty and model competence during training. The proposed solution advances existing research in curriculum learning for graph neural networks with the ability to incorporate a fine-grained spectrum of graph difficulty criteria in their training paradigms. Experimental results on real-world link prediction and node classification tasks illustrate the effectiveness of the proposed approach.
description: ACL 2023
Qurzon: A Prototype for a Divide and Conquer Based Quantum Compiler
Creators: name: Chatterjee, Turbasu
name: Das, Arnav
name: Mohtashim, Shah Ishmam
name: Saha, Amit
name: Chakrabarti, Amlan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: When working with algorithms on quantum devices, quantum memory becomes a crucial bottleneck due to low qubit count in NISQ-era devices. In this context, the concept of `divide and compute', wherein a quantum circuit is broken into several subcircuits and executed separately, while stitching the results of the circuits via classical post-processing, becomes a viable option, especially in NISQ-era devices. This paper introduces \textbf{Qurzon}, a proposed novel quantum compiler that incorporates the marriage of techniques of divide and compute with the state-of-the-art algorithms of optimal qubit placement for executing on real quantum devices. A scheduling algorithm is also introduced within the compiler that can explore the power of distributed quantum computing while paving the way for quantum parallelism for large algorithms. Several benchmark circuits have been executed using the compiler, thereby demonstrating the power of the divide and compute when working with real NISQ-era quantum devices.
EFSA Climate Suitability Analysis of Amyelois transitella
Creators: name: Caterina, Campese
name: Da Costa Irene,
name: Guidotti Diego
name: Muñoz Guajardo Irene
name: Eugenio, Rossi
name: Stancanelli Giuseppe
name: Andrea, Maiorano
Publisher: name: Zenodo
Year: 2022
Subjects: subject: climate suitability
subject: pest risk assessment
subject: amyelois transitella
subject: navel orangeworm
subject: pest distribution
subject: http://id.agrisemantics.org/gacs/C731
subject: http://id.agrisemantics.org/gacs/C1470

description: Climate suitability analysis allows to identify regions where climate is likely to support the establishment of a pest. This analysis is typically based on pest ecophysiology and/or distribution according to the different methodology/models available. In the context of the related EFSA pest risk assessment, a climate suitability analysis was performed for Amyelois transitella. The current publication includes: (i) a report on the extensive literature search conducted to retrieve data and information on the pest observed distribution and ecophysiology parameters, (ii) a report on the methodology of the climate suitability analysis, (iii) an excel file including metadata on the literature analysed, (iv) an excel file including the observed distribution of the pest, (v) the CLIMEX configuration file for Amyelois transitella (.cpx), (vi) maps related to the climate suitability analysis of A. transitella in JPEG format, (v) a Geopackage file including the layers related to CLIMEX results, Köppen-Geiger climate types relevant for the pest, pest distribution
description: EU; en; pdf; plants@efsa.europa.eu
Studies on the regulation of activin and inhibin secretion by the rat sertoli cell
Creators: name: Okuma., Yoshinori
Publisher: name: Monash University
Year: 2021

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.
Effects of wave interaction on ignition and deflagration-to-detonation transition in ethylene/air mixtures behind a reflected shock
Creators: name: Huang, Zhiwei
name: Zhang, Huangwei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Dynamics of ethylene autoignition and Deflagration-to-Detonation Transition (DDT) in a one-dimensional shock tube are numerically investigated using a skeletal chemistry including 10 species and 10 reactions. Different combustion modes are investigated through considering various premixed gas equivalence ratios (0.2 to 2.0) and incident shock wave Mach numbers (1.8 to 3.2). Four ignition and DDT modes are observed from the studied cases, i.e., no ignition, deflagration combustion, detonation after reflected shock and deflagration behind the incident shock. For detonation development behind the reflected shock, three autoignition hot spots are formed. The first one occurs at the wall surface after the re-compression of the reflected shock and contact surface, which further develops to a reaction shock because of the explosion in the explosion regime. The other two are off the wall, respectively caused by the reflected shock rarefaction wave interaction and reaction induction in the compressed mixture. The last hot spot develops to a reaction wave and couples with the reflected shock after a DDT process, which eventually leads to detonation combustion. For deflagration development behind the reflected shock, the wave interactions, wall surface autoignition hot spot as well as its induction of reaction shock are qualitatively similar to the mode of detonation after incident shock reflection, before the reflected shock rarefaction wave collision point. However, only one hot spot is induced after the collision, which also develops to a reaction wave but cannot catch up with the reflected shock. For deflagration behind the incident shock, deflagration combustion is induced by the incident shock compression whereas detonation occurs after the shock reflection.
Single-shot optical readout of a quantum bit using cavity quantum electrodynamics
Creators: name: Sun, Shuo
name: Waks, Edo
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a method to perform single-shot optical readout of a quantum bit (qubit) using cavity quantum electrodynamics. We selectively couple the optical transitions associated with different qubit basis states to the cavity, and utilize the change in cavity transmissivity to generate a qubit readout signal composed of many photons. We show that this approach enables single-shot optical readout even when the qubit does not have a good cycling transition required for standard resonance fluorescence measurements. We calculate the probability that the measurement detects the correct spin state using the example of a quantum dot spin under various experimental conditions and demonstrate that it can exceed 0.99.
Effects of the quark anomalous magnetic moment in the chiral symmetry restoration: magnetic catalysis and inverse magnetic catalysis
Creators: name: Farias, Ricardo L. S.
name: Tavares, William R.
name: Nunes, Rodrigo M.
name: Avancini, Sidney S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In this work, we consider the effect of a constant anomalous magnetic moment (AMM) of quarks in the SU(2) Nambu--Jona-Lasinio model in the mean field approximation. To this end, we use the Schwinger {\it ansatz}, which represents a linear magnetic field term in the Lagrangian. A regularization method inspired in the vacuum magnetic regularization (VMR) is adopted to avoid ultraviolet divergences. Our results indicate a smooth decrease of the pseudocritical temperature and quark condensates for magnetic fields $B \leq 0.1$ GeV$^2$ when a sizable AMM is considered. We found only a small window for Inverse Magnetic Catalysis (IMC), in contradiction with NJL predictions made in the literature. For a low value of AMM, we observe for all ranges of magnetic fields considered that the pseudocritical temperature increases with the magnetic field, indicating only Magnetic Catalysis (MC). In our approach, for nonvanishing quark AMM, the chiral symmetry restoration happens always as a smooth crossover and never turns into a first order phase transition.
description: 9 pages, 7 figures
Derivatives at the Boundary for Analytic Lipschitz Functions
Creators: name: O'Farrell, Anthony G.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Complex Variables (math.CV)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 30E25, 30H99, 46J10

description: We consider the behaviour of holomorphic functions on a bounded open subset of the plane, satisfying a Lipschitz condition with exponent $α$, with $0
description: 20 pages. This complements the investigation reported in arXiv:1402.4307, and assumes background, notation and lemmas from that paper
CaMP-INC: Components-aware Microservices Placement for In-Network Computing Cloud-Edge Continuum
Creators: name: Ali, Soukaina Ouledsidi
name: Elbiaze, Halima
name: Glitho, Roch
name: Ajib, Wessam
Publisher: name: arXiv
Year: 2023
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Microservices are a promising technology for future networks, and many research efforts have been devoted to optimally placing microservices in cloud data centers. However, microservices deployment in edge and in-network devices is more expensive than the cloud. Additionally, several works do not consider the main requirements of microservice architecture, such as service registry, failure detection, and each microservice's specific database. This paper investigates the problem of placing components (i.e. microservices and their corresponding databases) while considering physical nodes' failure and the distance to service registries. We propose a Components-aware Microservices Placement for In-Network Computing Cloud-Edge Continuum (CaMP-INC). We formulate an Integer Linear Programming (ILP) problem with the objective of cost minimization. Due to the problem's NP-hardness, we propose a heuristic solution. Numerical results demonstrate that our proposed solution CaMP-INC reduces the total cost by 15.8 % on average and has a superior performance in terms of latency minimization compared to benchmarks.
Graphoepitaxy for translational and orientational ordering of monolayers of rectangular nanoparticles
Creators: name: Ferraro, Mark E.
name: Truskett, Thomas M.
name: Bonnecaze, Roger T.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The combinations of particle aspect ratio and enthalpic-barrier templates that lead to translational and orientational ordering of monolayers of rectangular particles are determined using Monte Carlo simulations and density functional theory. For sufficiently high enthalpic barriers, we find that only specific combinations of particle sizes and template spacings lead to ordered arrays. The pattern multiplication factor provided by the template extends to approximately ten times the smallest dimension of the particle.
Rate of the enhanced dissipation for the two-jet Kolmogorov type flow on the unit sphere
Creators: name: Maekawa, Yasunori
name: Miura, Tatsu-Hiko
Publisher: name: arXiv
Year: 2021
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35Q30, 35R01, 47A10, 76D05

description: We study the enhanced dissipation for the two-jet Kolmogorov type flow which is a stationary solution to the Navier-Stokes equations on the two-dimensional unit sphere given by the zonal spherical harmonic function of degree two. Based on the pseudospectral bound method developed by Ibrahim, Maekawa, and Masmoudi [15] and a modified version of the Gearhart-Prüss type theorem shown by Wei [48], we derive an estimate for the resolvent of the linearized operator along the imaginary axis and show that a solution to the linearized equation rapidly decays at the rate $O(e^{-\sqrtν\,t})$ when the viscosity coefficient $ν$ is sufficiently small as in the case of the plane Kolmogorov flow.
description: 51 pages
An Architecture for Provisioning In-Network Computing-Enabled Slices for Holographic Applications in Next-Generation Networks
Creators: name: Aghaaliakbari, Fatemeh
name: Hmitti, Zakaria Ait
name: Rayani, Marsa
name: Gherari, Manel
name: Glitho, Roch H.
name: Elbiaze, Halima
name: Ajib, Wessam
Publisher: name: arXiv
Year: 2023
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Applications such as holographic concerts are now emerging. However, their provisioning remains highly challenging. Requirements such as high bandwidth and ultra-low latency are still very challenging for the current network infrastructure. In-network computing (INC) is an emerging paradigm that enables the distribution of computing tasks across the network instead of computing on servers outside the network. It aims at tackling these two challenges. This article advocates the use of the INC paradigm to tackle holographic applications' high bandwidth and low latency challenges instead of the edge computing paradigm that has been used so far. Slicing brings flexibility to next-generation networks by enabling the deployment of applications/verticals with different requirements on the same network infrastructure. We propose an architecture that enables the provisioning of INC-enabled slices for holographic-type application deployment. The architecture is validated through a proof of concept and extensive simulations. Our experimental results show that INC significantly outperforms edge computing when it comes to these two key challenges. In addition, low jitter was maintained to preserve the hologram's stability.
On Computing In the Network: Covid-19 Coughs Detection Case Study
Creators: name: Ali, Soukaina Ouledsidi
name: Hmitti, Zakaria Ait
name: Elbiaze, Halima
name: Glitho, Roch
Publisher: name: arXiv
Year: 2023
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Sound (cs.SD)
subject: Audio and Speech Processing (eess.AS)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Computing in the network (COIN) is a promising technology that allows processing to be carried out within network devices such as switches and network interface cards. Time sensitive application can achieve their quality of service (QoS) target by flexibly distributing the caching and computing tasks in the cloud-edge-mist continuum. This paper highlights the advantages of in-network computing, comparing to edge computing, in terms of latency and traffic filtering. We consider a critical use case related to Covid-19 alert application in an airport setting. Arriving travelers are monitored through cough analysis so that potentially infected cases can be detected and isolated for medical tests. A performance comparison has been done between an architecture using in-network computing and another one using edge computing. We show using simulations that in-network computing outperforms edge computing in terms of Round Trip Time (RTT) and traffic filtering.
Multirole women, their beliefs, stress and well-being
Creators: name: O'Kelly., Monica
Publisher: name: Monash University
Year: 2021

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.
Properties of dwarf stars in Cygnus OB2
Creators: name: Maryeva, O. V.
name: Parfenov, S. Yu.
name: Yushkin, M. V.
name: Shapovalova, A. S.
name: Gorda, S. Yu.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the results of investigation of five stars, originally classified as dwarfs, belonging to Cyg OB2 association, their stellar and wind properties. Using both TLUSTY and CMFGEN codes we derived effective temperatures, surface gravities, chemical abundances, mass-loss rates and projected rotation velocities. Due to the fact that distance to the stars is well known, we were able to estimate their luminosities. Using evolutionary models we estimated the ages of these sample stars and find that lower mass ones - MT282 and MT343 - belong to older population of the association. Their ages are greater than 10 Myr. The ages of three other stars - MT317, MT299, MT259 - are between 4-6 Myr.
description: 16 pages, 10 figures, accepted for publication in PASA
MDAnalysis State of the Union (UGM 2023)
Creators: name: Alibay, Irfan
name: Wang, Lily
name: Naughton, Fiona
name: Gowers, Richard J
name: Beckstein, Oliver
name: Matta, Micaela
name: Reddy, Tyler J
name: MacDermott-Opeskin, Hugo
name: Meli, Rocco
name: Goddard, Jenna Swarthout
Publisher: name: Zenodo
Year: 2023
Subjects: Molecular Dynamics
Open Source
Python
MDAnalysis

description: Slides for the MDAnalysis State of the Union presentation at the 2023 User Group Meeting
Mirror symmetric on-chip frequency circulation of light
Creators: name: Herrmann, Jason F.
name: Ansari, Vahid
name: Wang, Jiahui
name: Witmer, Jeremy D.
name: Fan, Shanhui
name: Safavi-Naeini, Amir H.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Integrated circulators and isolators are important for developing on-chip optical technologies, such as laser cavities, communication systems, and quantum information processors. These devices appear to inherently require mirror symmetry breaking to separate backwards from forwards propagation, so existing implementations rely upon magnetic materials, or interactions driven by propagating waves. In contrast to previous work, we demonstrate a mirror symmetric nonreciprocal device. Our device comprises three coupled photonic resonators implemented in thin-film lithium niobate. Applying radio frequency modulation, we drive conversion between the frequency eigenmodes of this system. We measure nearly 40 dB of isolation for approximately 75 mW of RF power near 1550 nm. We simultaneously generate nonreciprocal conversion between all of the eigenmodes in order to demonstrate circulation. Mirror symmetric circulation significantly simplifies the fabrication and operation of nonreciprocal integrated devices. Finally, we consider applications of such on-chip isolators and circulators, such as full-duplex isolation within a single waveguide.
description: 7 pages, 4 figures (main body)