cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Making Fanaroff-Riley I radio sources. Numerical Hydrodynamic 3D Simulations of Low Power Jets
Creators: name: Massaglia, S.
name: Bodo, G.
name: Rossi, P.
name: Capetti, S.
name: Mignone, A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Extragalactic radio sources have been classified into two classes, Fanaroff-Riley I and II, which differ in morphology and radio power. Strongly emitting sources belong to the edge-brightened FR II class, and weakly emitting sources to the edge-darkened FR I class. The origin of this dichotomy is not yet fully understood. Numerical simulations are successful in generating FR II morphologies, but they fail to reproduce the diffuse structure of FR Is. By means of hydro-dynamical 3D simulations of supersonic jets, we investigate how the displayed morphologies depend on the jet parameters. Bow shocks and Mach disks at the jet head, which are probably responsible for the hot spots in the FR II sources, disappear for a jet kinetic power L_kin < 10^43 erg/s. This threshold compares favorably with the luminosity at which the FR I/FR II transition is observed. The problem is addressed by numerical means carrying out 3D HD simulations of supersonic jets that propagate in a non-homogeneous medium with the ambient temperature that increases with distance from the jet origin, which maintains constant pressure. The jet energy in the lower power sources, instead of being deposited at the terminal shock, is gradually dissipated by the turbulence. The jets spread out while propagating, and they smoothly decelerate while mixing with the ambient medium and produce the plumes characteristic of FR I objects. Three-dimensionality is an essential ingredient to explore the FR I evolution because the properties of turbulence in two and three dimensions are very different, since there is no energy cascade to small scales in two dimensions, and two-dimensional simulations with the same parameters lead to FRII-like behavior.
description: 11 pages, 12 figures, to appear on A&A
Dielectric loss and thermoluminescence in low density polyethylene
Creators: name: Gorza, Daniel Victor.
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.
Combined Effects of Disk Winds and Turbulence-Driven Accretion on Planet Populations
Creators: name: Alessi, Matthew
name: Pudritz, Ralph E.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Recent surveys show that protoplanetary disks have lower levels of turbulence than expected based on their observed accretion rates. A viable solution to this is that magnetized disk winds dominate angular momentum transport. This has several important implications for planet formation processes. We compute the physical and chemical evolution of disks and the formation and migration of planets under the combined effects of angular momentum transport by turbulent viscosity and disk winds. We take into account the critical role of planet traps to limit Type I migration in all of these models and compute thousands of planet evolution tracks for single planets drawn from a distribution of initial disk properties and turbulence strengths. We do not consider multi-planet models nor include N-body planet-planet interactions. Within this physical framework we find that populations with a constant value disk turbulence and winds strength produce mass-semimajor axis distributions in the M-a diagram with insufficient scatter to compare reasonably with observations. However, populations produced as a consequence of sampling disks with a distribution of the relative strengths of disk turbulence and winds fit much better. Such models give rise to a substantial super Earth population at orbital radii 0.03-2 AU, as well as a clear separation between the produced hot Jupiter and warm Jupiter populations. Additionally, this model results in a good comparison with the exoplanetary mass-radius distribution in the M-R diagram after post-disk atmospheric photoevaporation is accounted for.
description: 30 pages (including 4 page Appendix), 10 figures in main text ( 3 in Appendix), 1 movie (clickable in caption of Figure 7). Accepted for publication in the Monthly Notices of the Royal Astronomical Society
Intention-behaviour barriers in UK Climate Activism
Creators: name: Sabherwal, Anandita
name: Shreedhar, Ganga
name: O'Dell, Dallas
name: Thomas-Walters, Laura
Publisher: name: Open Science Framework
Year: 2025
Subjects: subject: Social and Behavioral Sciences

description: This project seeks to examine intention-barrier gaps to participate in UK climate activism using a nationally representative survey of UK adults. The following research questions will be investigated: 1) How can intentions to take collective environmental action be translated into engagement with an activist group (Extinction Rebellion i.e., XR)? 2) How do intentions to take collective environmental action relate to different categories of collective action? 3) What factors predict social identification with XR?
First-principles-based screening method for resistivity scaling of anisotropic metals
Creators: name: Moors, Kristof
name: Sankaran, Kiroubanand
name: Pourtois, Geoffrey
name: Adelmann, Christoph
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The resistivity scaling of metals is a crucial limiting factor for further downscaling of interconnects in nanoelectronic devices that affects signal delay, heat production, and energy consumption. Here, we generalize a commonly considered figure of merit for selecting promising candidate metals with highly anisotropic Fermi surfaces in terms of their electronic transport properties at the nanoscale. For this, we introduce a finite-temperature transport tensor, based on band structures obtained from first principles. This transport tensor allows for a straightforward comparison between highly anisotropic metals in nanostructures with different lattice orientations and arbitrary transport directions. By evaluating the temperature dependence of the tensor components, we also assess the validity of a Fermi surface-based evaluation of the transport properties at zero temperature, rather than considering standard operating temperature conditions.
description: 15 pages, 9 figures, updated numerical integration scheme and analysis of temperature dependence
A DFT Study of the Electronic, Optical, and Mechanical Properties of a Recently Synthesized Monolayer Fullerene Network
Creators: name: Tromer, Raphael M.
name: Junior, Luiz A. Ribeiro
name: Galvão, Douglas S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences
subject: J.2.0; I.6.0
subject: 00-XX

description: Closely packed quasi-hexagonal and quasi-tetragonal crystalline phase of C$_{60}$ molecules (named qHPC$_{60}$) was recently synthesized. Here, we used DFT simulations to investigate the electronic, optical, and mechanical properties of qHPC$_{60}$ monolayers. qHPC$_{60}$ has a moderate direct electronic bandgap, with anisotropic mechanical properties. Their elastic modulus ranges between 50 and 62 GPa. The results for optical properties suggest that qHPC$_{60}$ can act as UV collectors for photon energies until 5.5 eV since they present low reflectivity and refractive index greater than one. The estimated optical bandgap (1.5-1.6 eV) is in very good agreement with the experimental one (1.6 eV).
description: 13 pages
A name validation function for distributed directory system services
Creators: name: Chong, Kiat Nyook.
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.
Double Copy of Form Factors and Higgs Amplitudes: A mechanism of turning spurious poles in Yang-Mills into physical poles in gravity
Creators: name: Lin, Guanda
name: Yang, Gang
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We extend the double copy picture of scattering amplitudes to a class of matrix elements (so-called form factors) that involve local gauge invariant operators. Both the Bern, Carrasco and Johansson (BCJ) and the Kawai, Lewellen and Tye (KLT) formalisms are considered and novel properties are observed. One remarkable feature is that through the double-copy construction, certain spurious poles hidden in the gauge form factors become physical propagators in gravity. This mechanism also reveals new hidden relations for form factors which can be understood as a generalization of the BCJ relations.
description: 6 pages, 4 figures, 4 pages of appendix; ver2, small modifications;
Covariant Spectator Theory of heavy-light and heavy mesons and the predictive power of covariant interaction kernels
Creators: name: Leitão, Sofia
name: Stadler, Alfred
name: Peña, M. T.
name: Biernat, Elmar P.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The Covariant Spectator Theory (CST) is used to calculate the mass spectrum and vertex functions of heavy-light and heavy mesons in Minkowski space. The covariant kernel contains Lorentz scalar, pseudoscalar, and vector contributions. The numerical calculations are performed in momentum space, where special care is taken to treat the strong singularities present in the confining kernel. The observed meson spectrum is very well reproduced after fitting a small number of model parameters. Remarkably, a fit to a few pseudoscalar meson states only, which are insensitive to spin-orbit and tensor forces and do not allow to separate the spin-spin from the central interaction, leads to essentially the same model parameters as a more general fit. This demonstrates that the covariance of the chosen interaction kernel is responsible for the very accurate prediction of the spin-dependent quark-antiquark interactions.
description: 5 pages, 2 figures
Lessons from the massive relic NGC 1277: remaining in-situ star formation in the cores of massive galaxies
Creators: name: Salvador-Rusiñol, Núria
name: Ferré-Mateu, Anna
name: Vazdekis, Alexandre
name: Beasley, Michael A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Near-ultraviolet (NUV) spectroscopic studies have suggested that passively evolving massive, early-type galaxies host sub-one percent fractions of young stars in their innermost regions. We shed light on the origin of these stars by analysing NGC 1277, a widely studied nearby prototypical massive compact relic galaxy. These are rare galaxies that have survived without experiencing significant size evolution via accretion and mergers since their formation at high redshift. We obtain a spectrum in the UV range within the central 1 kpc region of NGC 1277. We compare a carefully selected set of optical and NUV line-strengths to model predictions with star formation histories characteristic of massive galaxies. We find a 0.8% mass fraction of young stars in the centre of NGC 1277, similar to that found in massive early-type galaxies. Given the limited accretion history of NGC 1277, these results favour an intrinsic, in-situ, process triggering star formation at later epochs. Our results suggest a general constraint on the amount of young stars in the cores of massive early-type galaxies. This amount should be assumed as an upper limit for the young stellar contribution in massive galaxies, as there might be present other contributions from evolved stars.
description: 6 pages, 3 figures
Emergent two-Higgs doublet models
Creators: name: Abe, Tomohiro
name: Omura, Yuji
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate origin of three features that are often assumed in analysis of two-Higgs doublet models: (i) softly broken Z2 symmetry, (ii) CP invariant Higgs potential, and (iii) degenerated mass spectra. We extend electroweak gauge symmetry, introducing extra gauge symmetry and extra scalars, and we show that our models effectively derive two-Higgs dou- blet models at low energy which naturally hold the three features. We also find that the models can solve the strong CP problem.
description: 17 pages, no figures; version published in JHEP
Boole : algebra, logic and language
Creators: name: Leigh-Lancaster, David.
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.
Interactive Exploration of EMIT Mission Data
Creators: name: Bolch, Erik A.
name: Chadwick, K. Dana
name: Brodrick, Philip G.
name: Lind, Brianna M.
name: Friesz, Aaron M.
name: Jami, Mahsa
Publisher: name: Zenodo
Year: 2023

description: The Earth Mineral dust source InvesTigation (EMIT) imaging spectrometer aboard the international space station measures the spectrum of light ranging from the visible to infrared for each location in an image. This data can then be used to identify the distinct spectral signatures or fingerprints of materials present and applied across many scientific domains to map things like mineral types, vegetation species and health, snow grain size, water quality, dust, and greenhouse gases. NASA’s Land Processes Distributed Active Archive Center (LP DAAC) created and maintains the EMIT-Data-Resources repository, which contains Python workflows and Jupyter Notebooks developed and utilized within the Pangeo Framework. These resources leverage Xarray and the HoloViz ecosystem to explore the data and create interactive visualizations. This showcase will demonstrate creating an interactive map linked to a per-pixel spectral plot that can be used to explore the surface reflectance at different locations. Additional notebooks demonstrate cloud-based access from NASA’s Earthdata Cloud, how to subset data based on points and areas of interest, and how to convert datasets to ENVI format. All resources shown are open to all from the EMIT-Data-Resources repository. Contributions to the repository are welcome!
description: Work performed under USGS Contract G15PD00467 for NASA contract NN14HH33I.
The Scaling of Stellar Mass and Central Stellar Velocity Dispersion for Quiescent galaxies at z < 0.7
Creators: name: Zahid, H. Jabran
name: Geller, Margaret
name: Fabricant, Daniel
name: Hwang, Ho Seong
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We examine the relation between stellar mass and central stellar velocity dispersion-the M-sigma relation-for massive quiescent galaxies at z<0.7. We measure the local relation from the Sloan Digital Sky Survey and the intermediate redshift relation from the Smithsonian Hectospec Lensing Survey. Both samples are highly complete (>85%) and we consistently measure the stellar mass and velocity dispersion for the two samples. The M-sigma relation and its scatter are independent of redshift with sigma ~ M^0.3 for M>10^10.3 M_solar. The measured slope of the M-sigma relation is the same as the scaling between the total halo mass and the dark matter halo velocity dispersion obtained by N-body simulations. This consistency suggests that massive quiescent galaxies are virialized systems where the central dark matter concentration is either a constant or negligible fraction of the stellar mass. The relation between the total galaxy mass (stellar + dark matter) and the central stellar velocity dispersion is consistent with the observed relation between the total mass of a galaxy cluster and the velocity dispersion of the cluster members. This result suggests that the central stellar velocity dispersion is directly proportional to the velocity dispersion of the dark matter halo. Thus the central stellar velocity dispersion is a fundamental, directly observable property of galaxies that may robustly connect galaxies to dark matter halos in N-body simulations. To interpret the results further in the context of Lambda-CDM, it would be useful to analyze the relationship between the velocity dispersion of stellar particles and the velocity dispersion characterizing their dark matter halos in high-resolution cosmological hydrodynamic simulations.
description: 15 pages, 14 figures. To be published in ApJ. Updated to accepted version
On Trapped Modes In Variable White Dwarfs As Probes Of The $^{12}$C($α, γ$)$^{16}$O Reaction Rate
Creators: name: Chidester, Morgan T.
name: Farag, Ebraheem
name: Timmes, F. X.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We seek signatures of the current experimental $^{12}$C$(α,γ)^{16}$O reaction rate probability distribution function in the pulsation periods of carbon-oxygen white dwarf models. We find that adiabatic g-modes trapped by the interior carbon-rich layer offer potentially useful signatures of this reaction rate probability distribution function. Probing the carbon-rich region is relevant because it forms during the evolution of low-mass stars under radiative helium burning conditions, mitigating the impact of convective mixing processes. We make direct quantitative connections between the pulsation periods of the identified trapped g-modes in variable WD models and the current experimental $^{12}$C$(α,γ)^{16}$O reaction rate probability distribution function. We find an average spread in relative period shifts of $ΔP/P \simeq \pm$ 2\% for the identified trapped g-modes over the $\pm$ 3$σ$ uncertainty in the $^{12}$C$(α,γ)^{16}$O reaction rate probability distribution function -- across the effective temperature range of observed DAV and DBV white dwarfs and for different white dwarf masses, helium shell masses, and hydrogen shell masses. The g-mode pulsation periods of observed white dwarfs are typically given to 6-7 significant figures of precision. This suggests that an astrophysical constraint on the $^{12}$C$(α,γ)^{16}$O reaction rate could, in principle, be extractable from the period spectrum of observed variable white dwarfs.
description: This manuscript has been accepted for publication to the Astrophysical Journal. 13 pages, 9 figures. Presented at the AAS 240th summer conference in Pasadena. Zenodo link for our figures, data, etc. found here: 10.5281/zenodo.6779983
Sublattice-sensitive Majorana Modes
Creators: name: Zhu, Di
name: Li, Bo-Xuan
name: Yan, Zhongbo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: For two- and three-dimensional topological insulators whose unit cells consist of multiple sublattices, the boundary terminating at which type of sublattice can affect the time-reversal invariant momentum at which the Dirac points of helical boundary states are located. Through a general theory and a representative model, we reveal that this interesting property allows the realization of Majorana modes at sublattice domain walls forming on the boundary when the boundary Dirac points of the topological insulator are gapped by an unconventional superconductor in proximity. Intriguingly, we find that the sensitive sublattice-dependence of the Majorana modes allows their positions to be precisely manipulated by locally controlling the terminating sublattices or boundary potential. Our work reveals that the common sublattice degrees of freedom in materials open a new route to realize and manipulate Majorana modes.
description: 21 pages,10 figures
A recursive approach to abelian p-groups
Creators: name: McAndrew, Alasdair.
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.
Chemical abundances of Young Massive Clusters in NGC 1313
Creators: name: Hernandez, Svea
name: Winch, Autumn
name: Larsen, Søren
name: James, Bethan L.
name: Jones, Logan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We analyze spectroscopic observations of five young massive clusters (YMCs) in the barred spiral galaxy NGC 1313 to obtain detailed abundances from their integrated light. Our sample of YMCs was observed with the X-Shooter spectrograph on the Very Large Telescope (VLT). We make use of theoretical isochrones to generate synthetic integrated-light spectra, iterating on the individual elemental abundances until converging on the best fit to the observations. We measure abundance ratios for [Ca/Fe], [Ti/Fe], [Mg/Fe], [Cr/Fe], and [Ni/Fe]. We estimate an Fe abundance gradient of $-$0.124 $\pm$ 0.034 dex kpc$^{-1}$, and a slightly shallower $α$ gradient of $-$0.093 $\pm$ 0.009 dex kpc$^{-1}$. This is in contrast to previous metallicity studies that focused on the gas-phase abundances, which have found NGC 1313 to be the highest-mass barred galaxy known not to have a radial abundance gradient. We propose that the gradient discrepancy between the different studies originates from the metallicity calibrations used to study the gas-phase abundances. We also observe an age-metallicity trend which supports a scenario of constant star formation throughout the galaxy, with a possible burst in star formation in the south-west region where YMC NGC 1313-379 is located.
description: 26 pages, 18 figures, 10 tables, Accepted for Publication in AJ
Multi-field inflation and cosmological perturbations
Creators: name: Gong, Jinn-Ouk
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We provide a concise review on multi-field inflation and cosmological perturbations. We discuss convenient and physically meaningful bases in terms of which perturbations can be systematically studied. We give formal accounts on the gauge fixing conditions and present the perturbation action in two gauges. We also briefly review non-linear perturbations.
description: (v1) 59 pages, 8 figures, invited review for International Journal of Modern Physics D; (v2) 60 pages, typos corrected and references added
Jähnig, Bernhart (Hrsg.) und Spieler, Silke: Kirchen und Bekenntnisgruppen im Osten des Deutschen Reiches
Creators: name: Peucker, P. M.
Publisher: name: Unitas Fratrum
Year: 1970

description: Unitas Fratrum, Bd. 33 (1993): Unitas Fratrum, Band 33
A major galaxy cluster merger caught by eROSITA: weak lensing mass distribution and kinematic description
Creators: name: Monteiro-Oliveira, Rogério
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present the weak lensing mass distribution of a triple merging cluster candidate at $z_{\rm photo}\sim 0.36$ belonging to a supercluster recently discovered during the eROSITA Performance Verification phase. Our analysis solved a previous tension in the merger classification by confirming that the cluster pair eFEDS J093513.3+004746 and eFEDS J093510.7+004910 is undergoing a major merger with a mass ratio $1.7_{-0.7}^{+0.5}$. According to our two-body kinematic description, the encounter happened $0.58_{-0.20}^{+0.15}$ Gyr ago, in a scenario that supports the observed radio relic position at the cluster outskirts. However, the same analysis showed that the companion cluster, eFEDS J093501.1+005418, is not gravitationally bound to the interacting system and therefore it is not part of the supercluster. We also checked the impact of adopting a scaling relation to determine the halo concentration $c_{200}$. At the observed merger stage, where the clusters have travelled $\sim$55 per cent of the path to reach the apoapsis, the choice of the $c_{200}$ (whether from a scaling relation or a free parameter in the mass model) does not change significantly either the cluster masses or the kinematic description.
description: 12 pages, 9 figures, 4 tables. Submitted to MNRAS (2nd revision)
Pangeo - An open, inclusive, reproducible and scalable Geoscience data analytic community
Creators: name: Fouilloux, Anne
name: Kmoch, Alex
Publisher: name: Zenodo
Year: 2023
Subjects: pangeo
big data
geospatial
GIS

description: Presentation given online for EUROGI's webinar. Webinar Thu, Aug 3, 2023 12:00 PM – 1:45 PM CEST The Pangeo Project started as a community promoting open, reproducible, and scalable science. Now, the Pangeo software ecosystem involves open source tools such as xarray, iris, dask, jupyter, and many other packages, that are heavily used in the ocean, atmosphere, land and climate sciences, as well as in Earth observation and satellite data analytics. There is no single software package called “pangeo”; rather, the Pangeo project serves as a coordination point between programmers, researchers, software, and computing infrastructure. The Pangeo community comprises of many professional and voluntary contributors working collaboratively that provide documentation, develop and maintains software, and deploy computing infrastructure to make large-scale geospatial computing analysis easier. In this webinar we present the background, the software ecosystem and some examples, and talk about current activities and how to engage with the Pangeo community. In this webinar, you’ll discover:
 -The software ecosystem with examples
 -The Pangeo Project current activities
 -How to engage with the Pangeo community Speakers: Dr Anne Fouilloux, Senior Researcher at Simula Research Laboratory in Oslo, Norway. Anne is an active member of the global Pangeo community in Europe which aims at promoting open, reproducible and scalable science. She is also leading the Galaxy Climate Science Workbench and the Nordic Earth System Modelling Hub. Alexander Kmoch, PhD, is GIS lecturer at the Department of Geography, University of Tartu, Estonia. Web: https://pangeo.io/about.html Twitter: @pangeo_data
Curvature dependences of wave propagation in reaction-diffusion models
Creators: name: Buenzli, Pascal R.
name: Simpson, Matthew J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: Reaction-diffusion waves in multiple spatial dimensions advance at a rate that strongly depends on the curvature of the wave fronts. These waves have important applications in many physical, ecological, and biological systems. In this work, we analyse curvature dependences of travelling fronts in a single reaction-diffusion equation with general reaction term. We derive an exact, non-perturbative curvature dependence of the speed of travelling fronts that arises from transverse diffusion occurring parallel to the wave front. Inward-propagating waves are characterised by three phases: an establishment phase dominated by initial and boundary conditions, a travelling-wave-like phase in which normal velocity matches standard results from singular perturbation theory, and a dip-filling phase where the collision and interaction of fronts create additional curvature dependences to their progression rate. We analyse these behaviours and additional curvature dependences using a combination of asymptotic analyses and numerical simulations.
description: 29 pages, 14 figures; v3: minor changes; additional discussion of establishment and travelling phases; new figure (Fig 9) showing simulations on a larger circular pore
title: Σχεδιασμός εταιρικής ταυτότητας ,brand manual και προωθητικών μέσων για μάρκα ένδυσης με όνομα Aemus
title: Corporate identity,brand manual and promotional design for a clothing brand called Aemus.
titleType: AlternativeTitle
Creators: name: Παπαδοπούλου, Ελευθερία
Publisher: name: Πανεπιστήμιο Δυτικής Αττικής
Year: 2023
Subjects: Σχεδιασμός εταιρικής ταυτότητας
Corporate identity
Aemus
Balkans
Βαλκάνια
Εταιρική ταυτότητα

description: Πρόκειται για την εταιρική ταυτότητα ενός brand ρούχων με κύριο θέμα του τα Βαλκάνια.Η ονομασία Aemus προέρχεται από τη χερσόνησο του Αίμου η Βαλκανική χερσόνησο και την πρώιμη ονομασία των Βαλκανίων ως Αίμος εξ’ου και το Aemus. Για την ολοκλήρωση της πτυχιακής εργασίας, διεξήχθει έρευνα γύρω από τα Βαλκάνια και την ιδιοσυγκρασία των λαών τους, καθώς και η δημιουργία εικαστικού μέρους αλλά και brand manual της εταιρικής και οπτικής ταυτότητας.
Angiotensin converting enzyme and its synthetic inhibitors : assays, pharmacokinetics and properties
Creators: name: Larmour, Ian.
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.
Background rejection in NEXT using deep neural networks
Creators: name: NEXT Collaboration
name: Renner, J.
name: Farbin, A.
name: Vidal, J. Muñoz
name: Benlloch-Rodríguez, J. M.
name: Botas, A.
name: Ferrario, P.
name: Gómez-Cadenas, J. J.
name: Álvarez, V.
name: Azevedo, C. D. R.
name: Borges, F. I. G.
name: Cárcel, S.
name: Carrión, J. V.
name: Cebrián, S.
name: Cervera, A.
name: Conde, C. A. N.
name: Díaz, J.
name: Diesburg, M.
name: Esteve, R.
name: Fernandes, L. M. P.
name: Ferreira, A. L.
name: Freitas, E. D. C.
name: Goldschmidt, A.
name: González-Díaz, D.
name: Gutiérrez, R. M.
name: Hauptman, J.
name: Henriques, C. A. O.
name: Morata, J. A. Hernando
name: Herrero, V.
name: Jones, B.
name: Labarga, L.
name: Laing, A.
name: Lebrun, P.
name: Liubarsky, I.
name: López-March, N.
name: Lorca, D.
name: Losada, M.
name: Martín-Albo, J.
name: Martínez-Lema, G.
name: Martínez, A.
name: Monrabal, F.
name: Monteiro, C. M. B.
name: Mora, F. J.
name: Moutinho, L. M.
name: Nebot-Guinot, M.
name: Novella, P.
name: Nygren, D.
name: Para, A.
name: Pérez, J.
name: Querol, M.
name: Ripoll, L.
name: Rodríguez, J.
name: Santos, F. P.
name: Santos, J. M. F. dos
name: Serra, L.
name: Shuman, D.
name: Simón, A.
name: Sofka, C.
name: Sorel, M.
name: Toledo, J. F.
name: Torrent, J.
name: Tsamalaidze, Z.
name: Veloso, J. F. C. A.
name: White, J.
name: Webb, R.
name: Yahlali, N.
name: Yepes-Ramírez, H.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We investigate the potential of using deep learning techniques to reject background events in searches for neutrinoless double beta decay with high pressure xenon time projection chambers capable of detailed track reconstruction. The differences in the topological signatures of background and signal events can be learned by deep neural networks via training over many thousands of events. These networks can then be used to classify further events as signal or background, providing an additional background rejection factor at an acceptable loss of efficiency. The networks trained in this study performed better than previous methods developed based on the use of the same topological signatures by a factor of 1.2 to 1.6, and there is potential for further improvement.
description: 21 pages, 9 figures; formatting changes
title: Η επίδραση των κοινωνικών δικτυών στην αγοραστική συμπεριφορά του καταναλωτή στην βιομηχανία της μόδας κατά την περίοδο της πανδημίας
title: The impact of social networks on consumer buying behavior in the fashion industry during the pandemic
titleType: AlternativeTitle
Creators: name: Καραμπέτσος, Γεώργιος
name: Σταματάκη, Αριάδνη
Publisher: name: Πανεπιστήμιο Δυτικής Αττικής
Year: 2023
Subjects: Συμπεριφορά καταναλωτή
Μόδα
Πανδημία
Αγοραστική συμπεριφορά

description: Τα τελευταία χρόνια έχουν διαμορφωθεί πολλές νέες μορφές μάρκετινγκ μέσω της χρήσης του Διαδικτύου και της δημιουργίας Πλατφορμών Κοινωνικών Μέσων. Το ψηφιακό μάρκετινγκ είναι ένα ευρέως διαδεδομένο εργαλείο, το οποίο μπορεί να χρησιμοποιηθεί παγκοσμίως χωρίς περιορισμούς ή εμπόδια σε σύγκριση με άλλες μορφές μάρκετινγκ. Δύο κρίσιμα στοιχεία που προκύπτουν στην εποχή μας είναι το Social Media Marketing και το Influencer Marketing λόγω των υψηλών επιπέδων χρήσης των μέσων κοινωνικής δικτύωσης. Ο κύριος παράγοντας που μπορεί να βοηθήσει και να ενισχύσει το Μάρκετινγκ, ανεξάρτητα από το πεδίο δράσης του, είναι η καταναλωτική συμπεριφορά γιατί το Μάρκετινγκ είναι άρρηκτα συνδεδεμένο με τους πελάτες και τις αγορές τους. Αυτή η μελέτη στοχεύει να εξηγήσει την επίδραση των κοινωνικών δικτυών στην αγοραστική συμπεριφορά του καταναλωτή στην βιομηχανία της μόδας κατά την Περίοδο της Πανδημίας, με στόχο τους χρήστες των social media στην Ελλάδα. Η μελέτη διαπιστώνει ότι στην ψηφιακή ελληνική αγορά η καταναλωτική συμπεριφορά φαίνεται να επηρεάζεται από διάφορους παράγοντες. Αποδεικνύει ότι οι περισσότεροι καταναλωτές είναι εξαιρετικά εξοικειωμένοι με τις Πλατφόρμες Κοινωνικών Μέσων και έχουν τουλάχιστον έναν λογαριασμό στα Social Media. Επίσης, διερευνήθηκε η επίδραση των Influencers για την αγορά προϊόντων μόδας και η συμπεριφορά των καταναλωτών πριν και μετά την Πανδημία. Τα ευρήματα είναι πολύ ελπιδοφόρα και συγκρίνονται πλέον, με αυτά άλλων χωρών.
Revisiting the Continuum Reverberation Lags in the AGN PKS 0558-504
Creators: name: González-Buitrago, D. H.
name: Santisteban, J. V. Hernández
name: Barth, A. J.
name: Jimenez-Bailón, E.
name: Li, Yan-Rong
name: García-Díaz, Ma. T.
name: Vargas, A. Lopez
name: Herrera-Endoqui, M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present a revised analysis of the photometric reverberation mapping campaign of the narrow-line Seyfert 1 galaxy PKS 0558-504 carried out with the Swift Observatory during 2008--2010. Previously, Gliozzi et al.\ found using the Discrete Correlation Function (DCF) method that the short-wavelength continuum variations lagged behind variations at longer wavelengths, the opposite of the trend expected for thermal reprocessing of X-rays by the accretion disc, and they interpreted their results as evidence against the reprocessing model. We carried out new DCF measurements that demonstrate that the inverted lag-wavelength relationship found by Gliozzi et al.\ resulted from their having interchanged the order of the driving and responding light curves when measuring the lags. To determine the inter-band lags and uncertainties more accurately, we carried out new measurements with four independent methods. These give consistent results showing time delays increasing as a function of wavelength, as expected for the disc reprocessing scenario. The slope of the re-analysed delay spectrum appears to be roughly compatible with the predicted $τ\propto λ^{4/3}$ relationship for reprocessing by an optically thick and geometrically thin accretion disc, although the data points exhibit a large scatter about the fitted power-law trend.
description: 12 pages, 7 figures, 2 tables
Study of excited electronic states of the $^{39}$KCs molecule correlated with the K($4^2$S)+Cs($5^2$D) asymptote: experiment and theory
Creators: name: Szczepkowski, Jacek
name: Grochola, Anna
name: Jastrzebski, Wlodzimierz
name: Kowalczyk, Pawel
name: Vexiau, Romain
name: Bouloufa-Maafa, Nadia
name: Dulieu, Olivier
Publisher: name: arXiv
Year: 2022
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Using the polarisation labelling spectroscopy, we performed the detailed analysis of the level structure of excited electronic states of the $^{39}$KCs molecule in the excitation energy interval between 17500~cm$^{-1}$ and 18600~cm$^{-1}$ above the $v=0$ level of the $X^1Σ^+$ ground state. We prove that the observed states are strongly coupled by spin-orbit interaction above 18200~cm$^{-1}$, as manifested by numerous perturbations in the recorded spectra. The spectra are interpreted with the guidance of accurate electronic structure calculations on KCs, including potential energy curves, transition electric dipole moments, and representation of the spin-orbit interaction with a quasi-diabatic effective Hamiltonian approach. The agreement between theory and experiment is found remarkable, clearly discriminating among the available theoretical data. This study confirms the accuracy of the polarisation labelling spectroscopy to analyse highly-excited electronic molecular states which present a dense level structure.
description: 26 pages, 10 figures, laser spectroscopy, KCs molecules electronic states, potential energy curves, ab initio calculations
Five-Loop Running of the QCD coupling constant
Creators: name: Baikov, P. A.
name: Chetyrkin, K. G.
name: Kühn, J. H.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We analytically compute the five-loop term in the beta function which governs the running of $α_s$ --- the quark-gluon coupling constant in QCD. The new term leads to a reduction of the theory uncertainty in $α_s$ taken at the Z-boson scale as extracted from the $τ$-lepton decays as well as to new, improved by one more order of perturbation theory, predictions for the effective coupling constants of the Standard Model Higgs boson to gluons and for its total decay rate to the quark-antiquark pairs.
description: 4 pages, numerical errors in eq. (13) and the next one are corrected; a citation is added
Component of energy flow from supercritical accretion disks around rotating stellar mass black holes
Creators: name: Utsumi, Aoto
name: Ohsuga, Ken
name: Takahashi, Hiroyuki R.
name: Asahina, Yuta
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: By performing two-dimensional axisymmetric general relativistic radiation magnetohydrodynamics simulations with spin parameter $a^*$ varying from -0.9 to 0.9, we investigate the dependence on the black hole spin of the energy flow from supercritical accretion disk around stellar mass black hole. It is found that optically and geometrically thick disks form near the equatorial plane, and a part of the disk matter is launched from the disk surface in all models. The gas ejection is mainly driven by the radiative force, but magnetic force cannot be neglected, when $|a^*|$ is large. The energy outflow efficiency (total luminosity normalized by $\dot{M}_{\rm in} c^2 $; $\dot{M}_{\rm in}$ and $c$ are the mass accretion rate at the event horizon and the light speed) is larger for rotating black holes than for non-rotating black holes. This is $0.7\%$ for $a^*=-0.7$, $0.3\%$ for $a^*=0$, and $5\%$ for $a^*=0.7$ for $\dot{M}_{\rm in} \sim 100L_{\rm Edd}/c^2$ ($L_{\rm Edd}$ is Eddington luminosity). Also, although the energy is mainly released by radiation when $a^* \sim 0$, the Poynting power increases with $|a^*|$ and exceeds the radiative luminosity for models with $a^* \geq 0.5$ and $a^* \leq -0.7$. The more the black hole rotates, the larger the power ratio of the kinetic luminosity to the isotropic luminosity tends to be. This implies that objects with large (small) power ratio may have rapidly (slowly) rotating black holes. Among ultraluminous X-ray sources, IC342 X-1, is a candidate with a rapidly rotating black hole.
description: 14 pages, 8 figures, This paper has been accepted by APJ
title: Industry 4.0 και νέες / προηγμένες τεχνολογίες για μια βιώσιμη ανάπτυξη και προστασία του περιβάλλοντος. Η περίπτωση της σχεδίασης και υλοποίησης μηχανικών φίλτρων με μικροπορώδες με τεχνικές 3D printing
title: Industry 4.0 and new / advanced technologies for sustainable development and environmental protection. The case of the design and implementation of mechanical filters with microporosity using 3D printing techniques
titleType: AlternativeTitle
Creators: name: Καραμήτρος, Χρήστος
Publisher: name: Πανεπιστήμιο Δυτικής Αττικής
Year: 2023
Subjects: Industry 4.0
3D Printing
Microporous materials
Τρισδιάστατη εκτύπωση
Βιομηχανία 4.0
Μηχανικά φίλτρα
Μικροπορώδη υλικά

description: Η παρούσα διατριβή έχει στόχο την διερεύνηση καθω΄ς και τη διασταύρωση της Industry 4.0 και των προηγμένων τεχνολογιών στην επίτευξη των στόχων της βιώσιμης ανάπτυξης και της προστασίας του περιβάλλοντος. Η μελέτη επικεντρώνεται κυρίως στο σχεδιασμό και την υλοποίηση μηχανικών φίλτρων με μικροπορώδεις δομές με τη χρήση τεχνικών τρισδιάστατης εκτύπωσης. Το πρώτο μέρος της διατριβής παρέχει μια εμπεριστατωμένη ανάλυση της Industry 4.0 και των επιπτώσεών της σε διάφορες βιομηχανίες, ενώ παράλληλα εμβαθύνει στην έννοια της τρισδιάστατης εκτύπωσης και τις εφαρμογές της στην ανάπτυξη μικροπορωδών μηχανικών φίλτρων. Διερευνά τις θεμελιώδεις αρχές της τρισδιάστατης εκτύπωσης, συμπεριλαμβανομένων των διαφόρων τεχνικών εκτύπωσης, της επιλογής κατάλληλων υλικών και των επιμέρους μηχανικών τους ιδιοτήτων καθώς και των σχεδιαστικών εκτιμήσεων για τις μικροπορώδεις δομές. Συζητούνται τα πλεονεκτήματα της τρισδιάστατης εκτύπωσης όσον αφορά την εξατομίκευση, την ταχεία πρωτοτυποποίηση και τη μειωμένη σπατάλη υλικών, τονίζοντας τη σημασία τους στις βιώσιμες κατασκευαστικές πρακτικές. Ο πυρήνας της έρευνας περιστρέφεται γύρω από τον σχεδιασμό και την υλοποίηση μικροπορωδών μηχανικών φίλτρων με τη χρήση τεχνικών τρισδιάστατης εκτύπωσης. Η διατριβή διερευνά τη βελτιστοποίηση των γεωμετριών των φίλτρων, την επιλογή υλικών και τις διαδικασίες κατασκευής για την επίτευξη υψηλής απόδοσης διήθησης, χαμηλής πτώσης πίεσης και μακροχρόνιας διάρκειας ζωής. Πραγματοποιούνται πειραματικές μελέτες και προσομοιώσεις για την αξιολόγηση της απόδοσης των τρισδιάστατα εκτυπωμένων φίλτρων στην απομάκρυνση σωματιδίων και ρύπων από τον αέρα και τις πηγές νερού. Εν κατακλείδι, η παρούσα διατριβή συμβάλλει στο σύνολο των γνώσεων διερευνώντας την ενσωμάτωση του Industry 4.0 και συγκεκριμένα της τεχνολογίας της τρισδιάστατης εκτύπωσης για τη βιώσιμη ανάπτυξη και την προστασία του περιβάλλοντος. Η μελέτη περίπτωσης του σχεδιασμού και της υλοποίησης μικροπορωδών μηχανικών φίλτρων με τη χρήση τεχνικών τρισδιάστατης εκτύπωσης καταδεικνύει τις δυνατότητες αυτών των τεχνολογιών για την επίτευξη αποδοτικών συστημάτων φιλτραρίσματος με μειωμένο περιβαλλοντικό αποτύπωμα. Τα ευρήματα αυτής της έρευνας έχουν επιπτώσεις για τις βιομηχανίες που στοχεύουν στην υιοθέτηση προηγμένων τεχνολογιών στις κατασκευαστικές τους διαδικασίες, δίνοντας παράλληλα προτεραιότητα στη βιωσιμότητα και τη διατήρηση του περιβάλλοντος.
Streamwise decay of localized states in channel flow
Creators: name: Zammert, Stefan
name: Eckhardt, Bruno
Publisher: name: arXiv
Year: 2016
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Channel flow, the pressure driven flow between parallel plates, has exact coherent structures that show various degrees of localization. For states which are localized in streamwise direction but extended in spanwise direction, we show that they are exponentially localized, with decay constants that are different on the upstream and downstream side. We extend the analysis of Brand and Gibson [J. Fluid Mech. 750, R1 (2014)] for stationary states to the case of advected structures that is needed here, and derive expressions for the decay in terms of eigenvalues and eigenfunctions of certain second order differential equations. The results are in very good agreement with observations on exact coherent structures of different transversal wave lengths.
description: Minor changes
Geometric structures modeled on smooth projective horospherical varieties of Picard number one
Creators: name: Kim, Shin-young
Publisher: name: arXiv
Year: 2016
Subjects: subject: Algebraic Geometry (math.AG)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 32M12, 53A55, 14J45

description: Geometric structures modeled on rational homogeneous manifolds are studied to characterize rational homogeneous manifolds and to prove their deformation rigidity. To generalize these characterizations and deformation rigidity results to quasihomogeneous varieties, we first study horospherical varieties and geometric structures modeled on horospherical varieties. Using Cartan geometry, we prove that a geometric structure modeled on a smooth projective horospherical variety of Picard number one is locally equivalent to the standard geometric structure when the geometric structure is defined on a Fano manifold of Picard number one.
description: 32 pages
Ab initio nucleon-nucleus elastic scattering with chiral effective field theory uncertainties
Creators: name: Baker, R. B.
name: McClung, B.
name: Elster, Ch.
name: Maris, P.
name: Weppner, S. P.
name: Burrows, M.
name: Popa, G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Background: Effective interactions for nucleon-nucleus ($NA$) elastic scattering from first principles require the use of the same nucleon-nucleon ($NN$) interaction in the structure and reaction calculations, and a consistent treatment of the relevant operators at each order. Purpose: Truncation uncertainties of chiral $NN$ forces have been studied for scattering observables in few-body systems and for bound state properties of light nuclei. We extend this to $NA$ elastic scattering. Methods: With the spectator expansion of multiple scattering theory and the no-core shell model, we use a chiral interaction from the LENPIC collaboration to consistently calculate the leading order effective $NA$ interaction up to third chiral order (N2LO) and extract elastic scattering observables. We quantify the chiral truncation error using pointwise and correlated methods. Results: We analyze proton-$^{16}$O and neutron-$^{12}$C elastic scattering observables between 65 and 185 MeV projectile kinetic energy. We find qualitatively similar results for the chiral truncation uncertainties as in few-body systems, which we assess using similar diagnostic tools. The order-by-order convergence of the scattering observables for $^{16}$O and $^{12}$C is reasonable near 100 MeV, but for higher energies the expansion parameter becomes too large to converge. We find a near-perfect correlation between the neutron differential cross section and the $NN$ Wolfenstein amplitudes for small momentum transfers. Conclusions: The tools used to study the convergence of a chiral $NN$ interaction in few-body systems can be applied to $NA$ scattering with minor changes. The $NN$ interaction used here gives a good description of $^{16}$O and $^{12}$C scattering observables as low as 65 MeV. The very forward direction of the neutron differential cross section mirrors the behavior of the $NN$ interaction amazingly well.
description: 17 pages, 13 figures, 1 table