cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
New Uniform Bounds for Almost Lossless Analog Compression
Creators: name: Gutman, Yonatan
name: Śpiewak, Adam
Publisher: name: arXiv
Year: 2019
Subjects: subject: Dynamical Systems (math.DS)
subject: Information Theory (cs.IT)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 37A05, 37B10, 94A29

description: Wu and Verdú developed a theory of almost lossless analog compression, where one imposes various regularity conditions on the compressor and the decompressor with the input signal being modelled by a (typically infinite-entropy) stationary stochastic process. In this work we consider all stationary stochastic processes with trajectories in a prescribed set $\mathcal{S} \subset [0,1]^\mathbb{Z}$ of (bi)infinite sequences and find uniform lower and upper bounds for certain compression rates in terms of metric mean dimension and mean box dimension. An essential tool is the recent Lindenstrauss-Tsukamoto variational principle expressing metric mean dimension in terms of rate-distortion functions.
description: This paper is going to be presented at 2019 IEEE International Symposium on Information Theory. It is a short version of arXiv:1812.00458
Comparison of structural properties among growth hormones
Creators: name: Fridman, Masha.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Nuclearity of rapidly decreasing ultradifferentiable functions and time-frequency analysis
Creators: name: Boiti, Chiara
name: Jornet, David
name: Oliaro, Alessandro
name: Schindl, Gerhard
Publisher: name: arXiv
Year: 2019
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 46A04, 42C15, 46F05 (Primary), 42B10 (Secondary)

description: We use techniques from time-frequency analysis to show that the space $\mathcal S_ω$ of rapidly decreasing $ω$-ultradifferentiable functions is nuclear for every weight function $ω(t)=o(t)$ as $t$ tends to infinity. Moreover, we prove that, for a sequence $(M_p)_p$ satisfying the classical condition $(M1)$ of Komatsu, the space of Beurling type $\mathcal S_{(M_p)}$ when defined with $L^{2}\,$norms is nuclear exactly when condition $(M2)'$ of Komatsu holds.
Post-synaptic potential regularization has potential
Creators: name: Tartaglione, Enzo
name: Perlo, Daniele
name: Grangetto, Marco
Publisher: name: arXiv
Year: 2019
Subjects: subject: Machine Learning (cs.LG)
subject: Neural and Evolutionary Computing (cs.NE)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Improving generalization is one of the main challenges for training deep neural networks on classification tasks. In particular, a number of techniques have been proposed, aiming to boost the performance on unseen data: from standard data augmentation techniques to the $\ell_2$ regularization, dropout, batch normalization, entropy-driven SGD and many more.\\ In this work we propose an elegant, simple and principled approach: post-synaptic potential regularization (PSP). We tested this regularization on a number of different state-of-the-art scenarios. Empirical results show that PSP achieves a classification error comparable to more sophisticated learning strategies in the MNIST scenario, while improves the generalization compared to $\ell_2$ regularization in deep architectures trained on CIFAR-10.
Phosphatidylinositol turnover pathway in heart
Creators: name: Kuraja, Ivana Josefina.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
The GMRT High Resolution Southern Sky Survey for pulsars and transients -- III: searching for long period pulsars
Creators: name: Singh, Shubham
name: Roy, Jayanta
name: Panda, Ujjwal
name: Bhattacharyya, Bhaswati
name: Morello, Vincent
name: Stappers, Benjamin W.
name: Ray, Paul S.
name: McLaughlin, Maura A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Searching for periodic non-accelerated signals in presence of ideal white noise using the fully phase-coherent Fast Folding Algorithm (FFA) is theoretically established as a more sensitive search method than the Fast Fourier Transform (FFT) search with incoherent harmonic summing. In this paper, we present a comparison of the performance of an FFA search implementation using RIPTIDE and an FFT search implementation using PRESTO, over a range of signal parameters with white noise and with real telescope noise from the GHRSS survey with the uGMRT. We find that FFA search with appropriate de-reddening of time series, performs better than FFT search with spectral whitening for long period pulsars in real GHRSS noise conditions. We describe an FFA search pipeline implemented for the GHRSS survey looking for pulsars over a period range of 0.1 s to 100 s and up to dispersion measure of 500 pc cm$^{-3}$. We processed GHRSS survey data covering $\sim$ 1500 degree$^2$ of the sky with this pipeline. We re-detected 43 known pulsars with better signal-to-noise in the FFA search than in the FFT search. We also report discovery of two new pulsars including a long period pulsar having a short duty-cycle with this FFA search pipeline. The population of long period pulsars with periods of several seconds or higher can help to constrain the pulsar death-line.
description: 20 pages, 11 figures, 1 table, Accepted for publication in The Astrophysical Journal
Electronic supplementary material 1: methods and literature list from How sexual and natural selection interact and shape the evolution of nests and nesting behaviour in fishes
Creators: name: Svensson, Ola
name: Kvarnemo, Charlotta
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology
classificationCode: 60801
subject: Animal Behaviour

description: Electronic supplementary material 1 (methods and literature list) to Svensson and Kvarnemo (2023). How sexual and natural selection interact and shape the evolution of nests and nesting behaviour in fishes. Phil. Trans. R. Soc. B.
A Simple proof for Imnang's algorithms
Creators: name: Soori, Ebrahim
name: ORegan, Donal
name: Agarwal, Ravi P.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 47H10

description: In this paper, a simple proof of the convergence of the recent iterative algorithm by relaxed $(u, v)$-cocoercive mappings due to S. Imnang [S. Imnang, Viscosity iterative method for a new general system of variational inequalities in Banach spaces. J. Inequal. Appl., 249:18 pp., 2013.] is presented.
description: 5 pages
Einstein-Rosen "Bridge" Revisited and Lightlike Thin-Shell Wormholes
Creators: name: Guendelman, Eduardo
name: Nissimov, Emil
name: Pacheva, Svetlana
name: Stoilov, Michail
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study in some detail the properties of the mathematically correct formulation of the classical Einstein-Rosen "bridge" as proposed in the original 1935 paper, which was shown in a series of previous papers of ours to represent the simplest example of a static spherically symmetric traversable lightlike thin-shell wormhole. Thus, the original Einstein-Rosen "bridge" is not equivalent to the concept of the dynamical and non-traversable Schwarzschild wormhole, also called "Einstein-Rosen bridge" in modern textbooks on general relativity. The original Einstein-Rosen "bridge" requires the presence of a special kind of "exotic" matter source located on its throat which was shown to be the simplest member of the previously introduced by us class of lightlike membranes. We introduce and exploit the Kruskal-Penrose description of the original Einstein-Rosen "bridge". In particular, we explicitly construct closed timelike geodesics on the pertinent Kruskal-Penrose manifold.
description: v.2, 14 pages, typos corrected, to appear in the Proc. of 3rd Bulgarian National Congress on Physical Sciences (Sept-Oct 2016), Bulgarian Journal of Physics, vol.43 (2016). arXiv admin note: text overlap with arXiv:1512.08029
HMI Ring Diagram Analysis: Effects of tracking, noise and resolution
Creators: name: Basu, Sarbani
name: Bogart, Richard S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Ring diagram analysis is a standard local helioseismic technique. Data from the Helioseismic and Magnetic Imager (HMI) on the Solar Dynamics Observatory (SDO) are routinely used for Ring-diagram analysis, and fits to the power spectra as well as inversion results are standard data products. In this paper we examine the effects of different tracking rates, noise, and resolution on ring-diagram results. Most of the analysis is for $15^\circ$ tiles, but we also examine the effects of different tile sizes. The largest effect we find is that of resolution. Doppler noise has very little effect on the results, except perhaps at the deepest regions for which the tiles can give reliable results; variations in the tracking rate have a similar effect.
description: Accepted for publication in Solar Physics
Magnetic field intermittency in the solar wind: PSP and SolO observations ranging from the Alfven region out to 1 AU
Creators: name: Sioulas, Nikos
name: Huang, Zesen
name: Velli, Marco
name: Chhiber, Rohit
name: Cuesta, Manuel E.
name: Shi, Chen
name: Matthaeus, William H.
name: Bandyopadhyay, Riddhi
name: Vlahos, Loukas
name: Bowen, Trevor A.
name: Qudsi, Ramiz A.
name: Bale, Stuart D.
name: Owen, Christopher J.
name: Louarn, P.
name: Fedorov, A.
name: Maksimovic, Milan
name: Stevens, Michael L.
name: Kasper, Justin
name: Larson, Davin
name: Livi, Roberto
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Plasma Physics (physics.plasm-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: $PSP$ and $SolO$ data are utilized to investigate magnetic field intermittency in the solar wind (SW). Small-scale intermittency $(20-100d_{i})$ is observed to radially strengthen when methods relying on higher-order moments are considered ($SF_q$, $SDK$), but no clear trend is observed at larger scales. However, lower-order moment-based methods (e.g., PVI) are deemed more appropriate for examining the evolution of the bulk of Coherent Structures (CSs), $PVI \ge 3$. Using PVI, we observe a scale-dependent evolution in the fraction of the dataset occupied by CSs, $f_{PVI \ge 3}$. Specifically, regardless of the SW speed, a subtle increase is found in $f_{PVI\ge3}$ for $\ell =20 d_i$, in contrast to a more pronounced radial increase in CSs observed at larger scales. Intermittency is investigated in relation to plasma parameters. Though, slower SW speed intervals exhibit higher $f_{PVI \geq 6}$ and higher kurtosis maxima, no statistical differences are observed for $f_{PVI \geq 3}$. Highly Alfvénic intervals, display lower levels of intermittency. The anisotropy with respect to the angle between the magnetic field and SW flow, $Θ_{VB}$ is investigated. Intermittency is weaker at $Θ_{VB} \approx 0^{\circ}$ and is strengthened at larger angles. Considering the evolution at a constant alignment angle, a weakening of intermittency is observed with increasing advection time of the SW. Our results indicate that the strengthening of intermittency in the inner heliosphere is driven by the increase in comparatively highly intermittent perpendicular intervals sampled by the probes with increasing distance, an effect related directly to the evolution of the Parker spiral.
Comment on 'Unraveling Photoinduced Spin Dynamics in the Topological Insulator Bi2Se3'
Creators: name: Glinka, Y. D.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Comment on a recent paper published in Physical Review Letters by M. C. Wang, S. Qiao, Z. Jiang, S. N. Luo, and J. Qi [Phys. Rev. Lett. 116, 036601 (2016), arXiv:1511.02994v2].
Ultraholomorphic extension theorems in the mixed setting
Creators: name: Jiménez-Garrido, Javier
name: Sanz, Javier
name: Schindl, Gerhard
Publisher: name: arXiv
Year: 2019
Subjects: subject: Complex Variables (math.CV)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 26E10, 30D60, 46A13, 46E10

description: The aim of this work is to generalize the ultraholomorphic extension theorems from V. Thilliez in the weight sequence setting and from the authors in the weight function setting (of Roumieu type) to a mixed framework. Such mixed results have already been known for ultradifferentiable classes and it seems natural that they have ultraholomorphic counterparts. In order to have control on the opening of the sectors in the Riemann surface of the logarithm for which the extension theorems are valid we are introducing new mixed growth indices which are generalizing the known ones for weight sequences and functions. As it turns out, for the validity of mixed extension results the so-called order of quasianalyticity (introduced by the second author for weight sequences) is becoming important.
description: 32 pages
The self-consistent calculation of the electron charge distribution in heterojunctions [manuscript[
Creators: name: Rigopoulos, John.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Infrared Spectroscopy of free-floating planet candidates in Upper Scorpius and Ophiuchus
Creators: name: Bouy, H.
name: Tamura, M.
name: Barrado, D.
name: Motohara, K.
name: Rodríguez, N. Castro
name: Miret-Roig, N.
name: Konishi, M.
name: Koyama, S.
name: Takahashi, H.
name: Huelamo, N.
name: Bertin, E.
name: Olivares, J.
name: Sarro, L. M.
name: Berihuete, A.
name: Cuillandre, J. -C.
name: Galli, P. A. B.
name: Yoshii, Y.
name: Miyata, T.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Context: A rich population of low-mass brown dwarfs and isolated planetary mass objects has been reported recently in the Upper Scorpius and Ophiuchus star forming complex. Aims: We investigate the membership, nature and properties of 17 of these isolated planetary mass candidates using low-resolution near-infrared spectra. Methods: We investigate the membership by looking for evidences of youth using four diagnostics: the slope of the continuum between the J and Ks band, the Hcont and TLI-g gravity sensitive indices, and by comparing the spectra to young and field (old) M and L-dwarf standards. Results: All the targets but one are confirmed as young ultracool objects, with spectral types between L0 and L6 and masses in the range 0.004-0.013 M according to evolutionary models. The status of the last target is unclear at this point. Conclusions: Only one possible contaminant has been identified among the 17 targets, suggesting that the contamination level of the original sample must be lower than 6%
description: Accepted on 2022 June 2. Pending language revision
Electronic supplementary material 2: Extended figure legend from How sexual and natural selection interact and shape the evolution of nests and nesting behaviour in fishes
Creators: name: Svensson, Ola
name: Kvarnemo, Charlotta
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology
classificationCode: 60801
subject: Animal Behaviour

description: Electronic supplementary material 2 (extended figure legend) to Svensson and Kvarnemo (2023). How sexual and natural selection interact and shape the evolution of nests and nesting behaviour in fishes. Phil. Trans. R. Soc. B.
Improving Information from Manipulable Data
Creators: name: Frankel, Alex
name: Kartik, Navin
Publisher: name: arXiv
Year: 2019
Subjects: subject: Theoretical Economics (econ.TH)
subject: FOS: Economics and business

description: Data-based decisionmaking must account for the manipulation of data by agents who are aware of how decisions are being made and want to affect their allocations. We study a framework in which, due to such manipulation, data becomes less informative when decisions depend more strongly on data. We formalize why and how a decisionmaker should commit to underutilizing data. Doing so attenuates information loss and thereby improves allocation accuracy.
Focussing effects in laser-electron Thomson scattering
Creators: name: Harvey, C.
name: Marklund, M.
name: Holkundkar, A. R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the effects of laser pulse focussing on the spectral properties of Thomson scattered radiation. Modelling the laser as a paraxial beam we find that, in all but the most extreme cases of focussing, the temporal envelope has a much bigger effect on the spectrum than the focussing itself. For the case of ultra-short pulses, where the paraxial model is no longer valid, we adopt a sub-cycle vector beam description of the field. It is found that the emission harmonics are blue shifted and broaden out in frequency space as the pulse becomes shorter. Additionally the carrier envelope phase becomes important, resulting in an angular asymmetry in the spectrum. We then use the same model to study the effects of focussing beyond the limit where the paraxial expansion is valid. It is found that fields focussed to sub-wavelength spot sizes produce spectra that are qualitatively similar to those from sub-cycle pulses due to the shortening of the pulse with focussing. Finally, we study high-intensity fields and find that, in general, the focussing makes negligible difference to the spectra in the regime of radiation reaction.
description: 14 pages, 17 figures
Factors Affecting Employee Engagement: the case of Commercial Bank of Ethiopia
Creators: name: Yonas, Habtegabriel
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: Employee Engagement (EE) is the key focus of any organization in gaining competitive advantage; hence, employee engagement is the best tool for achieving it. In fact, employee engagement is considered to be the most powerful factor to measure an organization's strength and orientation towards superior performance for goal achievement. Commercial Bank of Ethiopia is one of the business organizations where Employee Engagement is an important issue that determines towards such a superior performance. In spite of its appreciating benefit of EE for enhanced performance, it didn't get any considerable attention from the side of management . Thus, the objective of the study is to examine factors that affect EE for the case of Commercial Bank of Ethiopia. To achieve this objective, the study adopts a quantitative research approach, through the use of questionnaire provided predominantly descriptive data. A total of 410 questionnaires are distributed and 386 of them are returned and correctly filled by the respondents. For the study the researcher used a Multi-stage sampling technique, since the population is dispersed over a wide geographic area. To examine these factors the study used Ordinary Least Square (OLS) and Tobit Model of estimation technique. The result of the analysis revealed that, except for internal locus of control, all variable used in the regression such as: Job Characteristics, Reward and Recognition, Working Environment, Organization Support and Supervisory Support were positively affect employee engagement. More importantly it is found out that perceived supervisory support is the strongest factor that determines employee engagement where as the least is working environment. A major policy recommendation arising from the results could be CBE should implement the significant factors that determine Employee Engagement for the realization of superior performance.
The prospects of measuring the angular power spectrum of the diffuse Galactic synchrotron emission with SKA1 Low
Creators: name: Ali, Sk. Saiyad
name: Bharadwaj, Somnath
name: Choudhuri, Samir
name: Ghosh, Abhik
name: Roy, Nirupam
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The diffuse Galactic synchrotron emission (DGSE) is the most important diffuse foreground component for future cosmological 21-cm observations. The DGSE is also an important probe of the cosmic ray electron and magnetic field distributions in the turbulent interstellar medium (ISM) of our Galaxy. In this paper we briefly review the Tapered Gridded Estimator (TGE) which can be used to quantify the angular power spectrum of the sky signal directly from the visibilities measured in radio-interferometric observations. The salient features of the TGE are (1.) it deals with the gridded data which makes it computationally very fast (2.) it avoids a positive noise bias which normally arises from the system noise inherent to the visibility data, and (3.) it allows us to taper the sky response and thereby suppresses the contribution from unsubtracted point sources in the outer parts and the sidelobes of the antenna beam pattern. We also summarize earlier work where the TGE was used to measure the C_l of the DGSE using 150 MHz GMRT data. Earlier measurements of the angular power spectrum are restricted to smaller angular multipole l ~ 10^3 for the DGSE, the signal at the larger l values is dominated by the residual point sources after source subtraction. The higher sensitivity of the upcoming SKA1 Low will allow the point sources to be subtracted to a fainter level than possible with existing telescopes. We predict that it will be possible to measure the angular power spectrum of the DGSE to larger values of l with SKA1 Low. Our results show that it should be possible to achieve l_{max} ~ 10^4 and ~ 10^5 with 2 minutes and 10 hours of observations respectively.
description: 10 pages, 3 figures; Accepted for publication in Journal of Astrophysics and Astronomy (JOAA) special issue on "Science with the SKA: an Indian perspective"
Impact of ultralight bosonic dark matter on the dynamical bar-mode instability of rotating neutron stars
Creators: name: Di Giovanni, Fabrizio
name: Sanchis-Gual, Nicolás
name: Guerra, Davide
name: Miravet-Tenés, Miquel
name: Cerdá-Durán, Pablo
name: Font, José Antonio
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate the effects ultralight bosonic field dark matter may have on the dynamics of unstable differentially-rotating neutron stars prone to the bar-mode instability. To this aim we perform numerical simulations in general relativity of rotating neutron stars accreting an initial spherically symmetric bosonic field cloud, solving the Einstein-(complex, massive) Klein-Gordon-Euler and the Einstein-(complex) Proca-Euler systems. We find that the presence of the bosonic field can critically modify the development of the bar-mode instability of neutron stars, depending on the total mass of the bosonic field and on the boson particle mass. In some cases, the accreting bosonic field can even quench the dominant $\ell=m=2$ mode of the bar-deformation by dynamically forming a mixed (fermion-boson) star that retains part of the angular momentum of the original neutron star. However, the mixed star undergoes the development of a mixed bar that leads to significant gravitational-wave emission, substantially different to that of the isolated neutron star. Our results indicate that dark-matter accretion in neutron stars could change the frequency of the expected emission of the bar-mode instability, which would have an important impact on ongoing searches for continuous gravitational waves.
description: 18 pages, 8 figures
Necessary and Sufficient Conditions for Difference Flatness
Creators: name: Kolar, Bernd
name: Diwold, Johannes
name: Schöberl, Markus
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optimization and Control (math.OC)
subject: Differential Geometry (math.DG)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: We show that the flatness of a nonlinear discrete-time system can be checked by computing a unique sequence of involutive distributions. The well-known test for static feedback linearizability is included as a special case. Since the computation of the sequence of distributions requires only the solution of algebraic equations, it allows an efficient implementation in a computer algebra program. In case of a positive result, a flat output can be obtained by straightening out the involutive distributions with the Frobenius theorem.
Poisson stochastic process and basic Schauder and Sobolev estimates in the theory of parabolic equations
Creators: name: Krylov, N. V.
name: Priola, E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35K10, 35K15

description: We show among other things how knowing Schauder or Sobolev-space estimates for the one-dimensional heat equation allows one to derive their multidimensional analogs for equations with coefficients depending only on time variable with the {\em same\/} constants as in the case of the one-dimensional heat equation. The method is based on using the Poisson stochastic process. It looks like no other method is available at this time and it is a very challenging problem to find a purely analytic approach to proving such results.
description: 37 pages, more discussion and references added, some errors corrected
Electronic supplementary material 1: methods and literature list from How sexual and natural selection interact to shape the evolution of nests and nesting behaviour in fishes
Creators: name: Svensson, Ola
name: Kvarnemo, Charlotta
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology
classificationCode: 60801
subject: Animal Behaviour

description: Electronic supplementary material 1 (methods and literature list) to Svensson and Kvarnemo (2023). How sexual and natural selection interact to shape the evolution of nests and nesting behaviour in fishes. Phil. Trans. R. Soc. B.
Structural studies of mixed zirconium (IV)-chromium (III) basic sulfates and other compounds
Creators: name: Platts, Simon Nicholas.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Electronic supplementary material 2: Extended figure legend from How sexual and natural selection interact to shape the evolution of nests and nesting behaviour in fishes
Creators: name: Svensson, Ola
name: Kvarnemo, Charlotta
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology
classificationCode: 60801
subject: Animal Behaviour

description: Electronic supplementary material 2 (extended figure legend) to Svensson and Kvarnemo (2023). How sexual and natural selection interact to shape the evolution of nests and nesting behaviour in fishes. Phil. Trans. R. Soc. B.
Driving in Dense Traffic with Model-Free Reinforcement Learning
Creators: name: Saxena, Dhruv Mauria
name: Bae, Sangjae
name: Nakhaei, Alireza
name: Fujimura, Kikuo
name: Likhachev, Maxim
Publisher: name: arXiv
Year: 2019
Subjects: subject: Robotics (cs.RO)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Traditional planning and control methods could fail to find a feasible trajectory for an autonomous vehicle to execute amongst dense traffic on roads. This is because the obstacle-free volume in spacetime is very small in these scenarios for the vehicle to drive through. However, that does not mean the task is infeasible since human drivers are known to be able to drive amongst dense traffic by leveraging the cooperativeness of other drivers to open a gap. The traditional methods fail to take into account the fact that the actions taken by an agent affect the behaviour of other vehicles on the road. In this work, we rely on the ability of deep reinforcement learning to implicitly model such interactions and learn a continuous control policy over the action space of an autonomous vehicle. The application we consider requires our agent to negotiate and open a gap in the road in order to successfully merge or change lanes. Our policy learns to repeatedly probe into the target road lane while trying to find a safe spot to move in to. We compare against two model-predictive control-based algorithms and show that our policy outperforms them in simulation.
description: Proceedings of the IEEE International Conference on Robotics and Automation (ICRA), 2020. Code available on Github at https://github.com/dhruvms/HighwayTraffic and https://github.com/dhruvms/DenseTrafficEval
Coleridge, Y.E.; Doelwijt, H.R. und Leeuwenberg, H.L.PH.: inventarissen van de archieven van de koren van de ongehuwde broeders, de ongehuwde zusters en de weduwen van de Evangelische Broedergemeente te Zeist, 1747-1969
Creators: name: Peucker, P. M.
Publisher: name: Unitas Fratrum
Year: 1970

description: Unitas Fratrum, Bd. 45 (1999): Unitas Fratrum, Band 45/46
On the properties of 0.11 keV to 344 MeV ion spectra in the inner heliosheath using regularized $κ$-distributions
Creators: name: Scherer, Klaus
name: Dialynas, Kostas
name: Fichtner, Horst
name: Galli, Ander
name: Roussos, Elias
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The shape of the ion energy spectra plays a critical role toward determining the ion energetics, the acceleration mechanisms and the possible sources of different plasma and suprathermal ion populations. The determination of the exact shape of the total particle spectrum, provide the necessary means to address the inner heliosheath (IHS) dynamics. Apart from various modeling efforts, a direct fit to the measured ion spectra for an extended energy range of $\sim$0.11 to 344 MeV has not been performed to date. We use an extended set of combined 0.11-55 keV ENA measurements from the Interstellar Boundary Explorer (IBEX-Lo and IBEX-Hi) and Cassini/Ion and Neutral Camera (INCA), converted to protons, together with $\sim$28 keV to 344 MeV ion measurements from the Low Energy Charged Particle (LECP) and Cosmic Ray Subsystem (CRS) experiments on Voyager 2, over the declining phase of Solar Cyle 23 (SC23) and ascending phase Solar Cylce 24 (SC24) (2009-2016) to study the characteristics of the particle energy spectrum. We fit the 0.11 keV to 344 MeV composite spectra with a set of regularized isotropic $κ$-distribution functions (RKD) allowing the determination of the macroscopic physical properties. We demonstrate that the 2009-2012 spectrum that corresponds to the declining phase of SC23 is well fitted by three different RKDs, while the 2013-2016 spectrum, associated with the rise of SC24, can only be approximated with six different RKDs. Our results are generally consistent with shock accelerated particles that undergo additional acceleration inside the IHS. We identify a low energy transmitted population of particles, a suprathermal reflected population and a very high energy component that is modulated by GCRs. The 2013-2016 time period is most likely associated with a mixture of particles from SC23 and SC24, which is reflected by the need to employ six RDKs.
description: 9 pages 2 figures, 2 tables
Velocity Variations in the Phoenix-Hermus Star Stream
Creators: name: Carlberg, Raymond
name: Grillmair, Carl
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Measurements of velocity and density perturbations along stellar streams in the Milky Way provide a time integrated measure of dark matter substructure at larger galactic radius than the complementary instantaneous inner halo strong lensing detections of dark matter sub-halos in distant galaxies. An interesting case to consider is the proposed Phoenix-Hermus star stream, which is long, thin and on a nearly circular orbit, making it a particular good target to study for velocity variations along its length. In the presence of dark matter sub-halos the distribution of velocities is significantly perturbed in a manner that is readily understood with the impulse approximation. A set of simulations show that only sub-halos above a few 10^7 M_sun lead to reasonably long lived observationally detectable velocity variations of amplitude of order 1 kms, with an average of about one visible hit per (two-armed) stream. An implication is that globular clusters themselves will not have a visible impact on the stream. Radial velocities have the benefit that they are completely insensitive to distance errors. Distance errors scatter individual star velocities perpendicular and tangential to the mean orbit but their mean values remain unbiased. Calculations like these help build the quantitative case to acquire large, fairly deep, velocity samples of stream stars.
description: AAS journals revised version submitted
DocLayNet: A Large Human-Annotated Dataset for Document-Layout Analysis
Creators: name: Pfitzmann, Birgit
name: Auer, Christoph
name: Dolfi, Michele
name: Nassar, Ahmed S
name: Staar, Peter W J
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Accurate document layout analysis is a key requirement for high-quality PDF document conversion. With the recent availability of public, large ground-truth datasets such as PubLayNet and DocBank, deep-learning models have proven to be very effective at layout detection and segmentation. While these datasets are of adequate size to train such models, they severely lack in layout variability since they are sourced from scientific article repositories such as PubMed and arXiv only. Consequently, the accuracy of the layout segmentation drops significantly when these models are applied on more challenging and diverse layouts. In this paper, we present \textit{DocLayNet}, a new, publicly available, document-layout annotation dataset in COCO format. It contains 80863 manually annotated pages from diverse data sources to represent a wide variability in layouts. For each PDF page, the layout annotations provide labelled bounding-boxes with a choice of 11 distinct classes. DocLayNet also provides a subset of double- and triple-annotated pages to determine the inter-annotator agreement. In multiple experiments, we provide baseline accuracy scores (in mAP) for a set of popular object detection models. We also demonstrate that these models fall approximately 10\% behind the inter-annotator agreement. Furthermore, we provide evidence that DocLayNet is of sufficient size. Lastly, we compare models trained on PubLayNet, DocBank and DocLayNet, showing that layout predictions of the DocLayNet-trained models are more robust and thus the preferred choice for general-purpose document-layout analysis.
description: 9 pages, 6 figures, 5 tables. Accepted paper at SIGKDD 2022 conference
Magnetic ground state of supported monatomic Fe chains from first principles
Creators: name: Nagyfalusi, Balázs
name: Udvardi, László
name: Szunyogh, László
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: A new computational scheme is presented based on a combination of the conjugate gradient and the Newton-Raphson method to self-consistently minimize the energy within spin-density functional theory, thus to identify the ground state magnetic order of a cluster of magnetic atoms. The applicability of the new \textit{ab initio} optimization method is demonstrated on Fe chains deposited on different metallic substrates. The obtained magnetic ground states of the Fe chains on Rh(111) are analyzed in details and a good comparison is found with those gained from an extended Heisenberg model containing first principles based interaction parameters. Moreover, the effect of the different bilinear spin-spin interactions in the formation of the magnetic ground states is monitored. In case of Fe chains on Nb(110) spin-spiral configurations with opposite rotational sense are found as compared to previous spin-model results which hints on the importance of higher order chiral interactions. The wavelength of the spin-spiral states of Fe chains on Re(0001) was obtained in good agreement with scanning tunneling microscopy experiments.
description: 11 pages, 8 figures
The multimodal response to acute stress as a predictor of psychological resilience
Creators: name: Reinhardt, Pablo
name: Roelofs, Karin
name: Hendler, Talma
name: Netali Mor
name: Riepenhausen, Antje
name: Uściƚko, Aleksandra
name: Schultebraucks, Katharina
name: Puhlmann, Lara
name: Kalisch, Raffael
name: Böhmer, Justin
name: Veer, Ilya
name: Yuen, Kenneth
name: Walter, Henrik
name: Bögemann, Sophie
name: Wackerhagen, Carolin
name: Hermans, Erno
name: Zerban, Matthias
name: Kobylinska, Dorota
name: Reppmann, Zala
name: Mituniewicz, Julian
Publisher: name: OSF Registries
Year: 2023
Subjects: subject: Medicine and Health Sciences
subject: Social and Behavioral Sciences
subject: Stress-related disorders, Psychological resilience, Acute stress response, fMRI, large-scale brain networks, functional connectivity, machine learning, longitudinal

description: Preregistration of the analysis plan: "The multimodal response to acute stress as a predictor of psychological resilience", using data from the Dynamic Modelling of Resilience - Observational Study (DynaM-OBS).
Dynamics of asteroids and near-Earth objects from Gaia Astrometry
Creators: name: Bancelin, D.
name: Hestroffer, D.
name: Thuillot, W.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Gaia is an astrometric mission that will be launched in spring 2013. There are many scientific outcomes from this mission and as far as our Solar System is concerned, the satellite will be able to map thousands of main belt asteroids (MBAs) and near-Earth objects (NEOs) down to magnitude < 20. The high precision astrometry (0.3-5 mas of accuracy) will allow orbital improvement, mass determination, and a better accuracy in the prediction and ephemerides of potentially hazardous asteroids (PHAs). We give in this paper some simulation tests to analyse the impact of Gaia data on known asteroids' orbit, and their value for the analysis of NEOs through the example of asteroid (99942) Apophis. We then present the need for a follow-up network for newly discovered asteroids by Gaia, insisting on the synergy of ground and space data for the orbital improvement.
description: Accepted for publication in Planetary and Space Science in Dec. 2012
Early observations of the nearby type Ia supernova SN 2015F
Creators: name: Cartier, R.
name: Sullivan, M.
name: Firth, R.
name: Pignata, G.
name: Mazzali, P.
name: Maguire, K.
name: Childress, M. J.
name: Arcavi, I.
name: Ashall, C.
name: Bassett, B.
name: Crawford, S. M.
name: Frohmaier, C.
name: Galbany, L.
name: Gal-Yam, A.
name: Hosseinzadeh, G.
name: Howell, D. A.
name: Inserra, C.
name: Johansson, J.
name: Kasai, E. K.
name: McCully, C.
name: Prajs, S.
name: Prentice, S.
name: Schulze, S.
name: Smartt, S. J.
name: Smith, K. W.
name: Smith, M.
name: Valenti, S.
name: Young, D. R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present photometry and time-series spectroscopy of the nearby type Ia supernova (SN Ia) SN 2015F over $-16$ days to $+80$ days relative to maximum light, obtained as part of the Public ESO Spectroscopic Survey of Transient Objects (PESSTO). SN 2015F is a slightly sub-luminous SN Ia with a decline rate of $Δm15(B)=1.35 \pm 0.03$ mag, placing it in the region between normal and SN 1991bg-like events. Our densely-sampled photometric data place tight constraints on the epoch of first light and form of the early-time light curve. The spectra exhibit photospheric C II $λ6580$ absorption until $-4$ days, and high-velocity Ca II is particularly strong at $14000$ km s$^{-1}$, suggesting mixing in the outermost layers of the SN ejecta. Although unusual in SN Ia spectra, including V II in the modelling significantly improves the spectral fits. Intriguingly, we detect an absorption feature at $\sim$6800 Å that persists until maximum light. Our favoured explanation for this line is photospheric Al II, which has never been claimed before in SNe Ia, although detached high-velocity C II material could also be responsible. In both cases the absorbing material seems to be confined to a relatively narrow region in velocity space. The nucleosynthesis of detectable amounts of Al II would argue against a low-metallicity white dwarf progenitor. We also show that this 6800 Å feature is weakly present in other normal SN Ia events, and common in the SN 1991bg-like sub-class.
description: Accepted for publication in MNRAS
Barriers to Use Contraceptive among Adolescents in the City of Addis Ababa
Creators: name: Gadisa, Tsigereda
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2004

description: A cross sectional comparative survey was conducted to assess barriers to the use of contraceptive among adolescents and their contraceptives choices and preferences, in a randomly selected samples of in and out of school adolescents in Addis Ababa city administration from November to December 2003.The data was collected using anonymous self administered questionnaire and focus group discussion. A total of 1591 (of which 796 out of school and 795 in school) adolescents participated in the quantitative and four sex segregated focus group participated in the qualitative part of the study. Of the 1591 respondents 733 (92.1%) out of school and 778 (97.6%) in school adolescents have heard about contraceptives. Ninety percent of respondents who heard about contraceptive (from the two adolescent populations) also knew where to get contraceptive. Sexual activity was 16.6% among in school and 36.4% among out of school adolescents. Of the sexually active adolescents more out of school 61.4% than in school 57.5% ever used contraceptive but, only 28.6% of out of school and 49.3% of in school ever users consistently used contraceptive. Majority 677 (88.1%) out of school and 650 (86.4%) in school adolescents were interested to know more about contraceptive. A significant proportion adolescents (81% of out of school and 88.1% of in school adolescents) plan to use contraceptive in the future of which 79.9% of out of school and 76.8 % in school adolescents prefers to use modern contraceptives but they showed varied preferences on the sources of contraceptive for future use. Great majority (245 out of the 248 ever users) faced various barriers to use contraceptive. It was concluded that adolescents face a wide range of - barriers to use contraceptives both at acquisition and use xii levels. . Majority adolescents preferred to use modern contraceptive but they have varied preferences of sources of contraceptive for future use. And we recommend sensitizing communities to create supportive environments, and providers to build on youth friendly services at all delivery points. Key words are: Adolescents' contraceptive use and barriers to use contraceptive
The ALMA REBELS Survey: Average [CII] $158\,\rm{μm}$ sizes of Star-Forming Galaxies from $z\sim 7$ to $z\sim 4$
Creators: name: Fudamoto, Y.
name: Smit, R.
name: Bowler, R. A. A.
name: Oesch, P. A.
name: Bouwens, R.
name: Stefanon, M.
name: Inami, H.
name: Endsley, R.
name: Gonzalez, V.
name: Schouws, S.
name: Stark, D.
name: Algera, H. S. B.
name: Aravena, M.
name: Barrufet, L.
name: da Cunha, E.
name: Dayal, P.
name: Ferrara, A.
name: Graziani, L.
name: Hodge, J. A.
name: Hygate, A. P. S.
name: Inoue, A. K.
name: Nanayakkara, T.
name: Pallottini, A.
name: Pizzati, E.
name: Schneider, R.
name: Sommovigo, L.
name: Sugahara, Y.
name: Topping, M.
name: van der Werf, P.
name: Bethermin, M.
name: Cassata, P.
name: Dessauges-Zavadsky, M.
name: Faisst, A. L.
name: Fujimoto, S.
name: Ginolfi, M.
name: Hathi, N.
name: Jones, G. C.
name: Pozzi, F.
name: Schaerer, D.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the average [CII] $158\,\rm{μm}$ emission line sizes of UV-bright star-forming galaxies at $z\sim7$. Our results are derived from a stacking analysis of [CII] $158\,\rm{μm}$ emission lines and dust continua observed by ALMA, taking advantage of the large program Reionization Era Bright Emission Line Survey (REBELS). We find that the average [CII] emission at $z\sim7$ has an effective radius $r_e$ of $2.2\pm0.2\,\rm{kpc}$. It is $\gtrsim2\times$ larger than the dust continuum and the rest-frame UV emission, in agreement with recently reported measurements for $z\lesssim6$ galaxies. Additionally, we compared the average [CII] size with $4
description: 9pages, 4 figures, submitted to ApJ; minor corrections were made for typos in the author list and the title