cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Self-fulfilling Stigmatization: An Evolutionary Game of Online Opinion Dynamics in Social Movements
Creators: name: Zhu, Hongding
Publisher: name: University of Chicago
Year: 2022
Subjects: subject: Social Movement
subject: Stigmatization
subject: Evolutionary Game
subject: Echo Chamber
subject: Censorship

description: To illustrate how the stigmatization of social movements arises from its micro-foundation---the emotional confrontation, I model the process of such stigmatization on social media using an evolutionary game with two sub-populations---the participants of a social movement and outsiders in the general public. Based on the critical assumption of ``hostility as retaliation'', the members of the movement, who are hostile toward the general public, and haters in the general public reproduce each other. Suppose there are enough such hostile members so that it exceeds the stigmatization threshold. Then, the social movement is stigmatized and locked in conflicts with haters outside the movement. The stigmatization of a social movement can be a self-fulfilling prophecy. When there are initially enough haters, even if a social movement is peaceful at the beginning, the speed at which the movement becomes hostile under outgroup pressure will outpace the rate at which it can win public support, and finally induces the stigmatization equilibrium.
Magnitudes and Timescales of Total Solar Irradiance Variability
Creators: name: Kopp, Greg
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The Sun's net radiative output varies on timescales of minutes to gigayears. Direct measurements of the total solar irradiance (TSI) show changes in the spatially- and spectrally-integrated radiant energy on timescales as short as minutes to as long as a solar cycle. Variations of ~0.01 % over a few minutes are caused by the ever-present superposition of convection and oscillations with very large solar flares on rare occasion causing slightly-larger measureable signals. On timescales of days to weeks, changing photospheric magnetic activity affects solar brightness at the ~0.1 % level. The 11-year solar cycle shows variations of comparable magnitude with irradiances peaking near solar maximum. Secular variations are more difficult to discern, being limited by instrument stability and the relatively short duration of the space-borne record. Historical reconstructions of the Sun's irradiance based on indicators of solar-surface magnetic activity, such as sunspots, faculae, and cosmogenic isotope records, suggest solar brightness changes over decades to millennia, although the magnitudes of these variations have high uncertainties due to the indirect historical records on which they rely. Stellar evolution affects yet longer timescales and is responsible for the greatest solar variabilities. In this manuscript I summarize the Sun's variability magnitudes over different temporal regimes and discuss the irradiance record's relevance for solar and climate studies as well as for detections of exo-solar planets transiting Sun-like stars.
description: Journal of Space Weather and Space Climate, 2016, 19 pp., 8 figures
Variational tensor network renormalization in imaginary time: benchmark results in the Hubbard model at finite temperature
Creators: name: Czarnik, Piotr
name: Rams, Marek M.
name: Dziarmaga, Jacek
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A Gibbs operator $e^{-βH}$ for a 2D lattice system with a Hamiltonian $H$ can be represented by a 3D tensor network, the third dimension being the imaginary time (inverse temperature) $β$. Coarse-graining the network along $β$ results in an accurate 2D projected entangled-pair operator (PEPO) with a finite bond dimension. The coarse-graining is performed by a tree tensor network of isometries that are optimized variationally to maximize the accuracy of the PEPO. The algorithm is applied to the two-dimensional Hubbard model on an infinite square lattice. Benchmark results are obtained that are consistent with the best cluster dynamical mean-field theory and power series expansion in the regime of parameters where they yield mutually consistent results.
description: 13 pages, 16 figures, new numerical results added, presentation improved
Decision models for logistics outsourcing : incorporating production/inventory and distribution planning
Creators: name: Chong., Lib Lim-Ping
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Downstream Supply Chain Integration In Brewery Industry: The Case Of BGI Ethiopia's Product
Creators: name: Zenebe, Mulugeta
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: Downstream Supply chain integration is part of supply chain integration; coordinating and synchronizing the functions and interdependent organizations to address product and services to end consumer to enhance common benefits. The main objective of the study is to assess downstream supply chain integration in Brewery industry in Ethiopia in the case of BGI Ethiopia products. The level and practice of information integration, coordination and resource sharing, organizational relationship linkage, perceived benefits of downstream supply chain integration and information technology tools implementation practice has been analyzed. The main drivers of this study are those Critical factors of the downstream supply chain integration including; Poor information integration and traditional way of communication and lack of trust among partners. The study deployed descriptive research method with representative sample of 304 respondents from the downstream supply chain partners selected through stratified random sampling. A self-developed questionnaire adopted from related literatures as well as semi structured interview and focus group discussion was used as a research tool for collecting data. The collected data was analyzed using statistical package for social science version.23 software descriptive statistics (mean, standard deviation and correlation). The main findings of the study show that, the level and practice of information integration, coordination and resource sharing, organizational relationship linkage and information technology tools implementation practice rated at low level. However, the perceived benefits for downstream supply chain partners rated at satisfactory level. Poor collaboration, lack of trust, low level of information technology utilization, high cost and lack of focus for supply chin integration are the main challenges or barriers identified in this study. Finally, the study recommends proper Information integration, establishing active communication channel, establishing common performance indicators, efficient resource sharing, and capacity building to strengthen the integration
Higher-order vector discrete rogue-wave states in the coupled Ablowitz-Ladik equations: exact solutions and stability
Creators: name: Wen, Xiao-Yong
name: Yan, Zhenya
name: Malomed, Boris A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: An integrable system of two-component nonlinear Ablowitz-Ladik (AL) equations is used to construct complex rogue-wave (RW) solutions in an explicit form. First, the modulational instability of continuous waves is studied in the system. Then, new higher-order discrete two-component RW solutions of the system are found by means of a newly derived discrete version of a generalized Darboux transformation. Finally, perturbed evolution of these RW states is explored in terms of systematic simulations, which demonstrates that tightly and loosely bound RWs are, respectively, nearly stable and strongly unstable solutions.
description: 21 pages, 15 figures, Chaos, 2016 in press
O engenho da máquina criptográfica Enigma e a quebra de códigos alemães por Alan Turing
Creators: name: Santos, Maria Eduarda Rosa
name: Nunes, Nayara Terezinha
name: Carvalho, Aline Torres
name: Araújo Lima, Danielli
Publisher: name: figshare
Year: 2022
Subjects: subject: 100503 Computer Communications Networks
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: Computational Physics
subject: 10104 Combinatorics and Discrete Mathematics (excl. Physical Combinatorics)
subject: FOS: Mathematics

description: Desde tempos mais remotos existe a necessidade de comunicação de dados sigilosos, seja por motivos políticos, militares, diplomáticos ou comerciais. A técnica mais amplamente difundida neste tema é a criptografia de dados. Embora hoje seja difícil imaginar, já existiu uma época em que a cifragem que garantia esse sigilo era realizada manualmente. Assim, só no início do século XX, com a invenção de máquinas mecânicas com rotores, tornou-se possível que o cálculo de mensagens cifradas fosse realizado de maneira mais rápida. Esse artigo tem como principal objetivo o estudo da máquina criptográfica Enigna, utilizada pelos alemães na Segunda Guerra Mundial, e a quebra do sigilo dessa máquina pelo matemático Alan Turing, também conhecido como pai da Ciência da Computação.
Simultaneous mapping and localisation for a mobile robot using sonar sensing
Creators: name: Seng., Chong Kok
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
UK's Association of British Clinical Diabetologist's Diabetes Technology Network (ABCD-DTN): Best practice guide for hybrid closed-loop therapy
Creators: name: Griffin, Tomás
name: Gallen, Geraldine
name: Hartnell, Sara
name: Crabtree, Thomas
name: Holloway, Melissa
name: Gibb, Fraser W
name: Lumb, Alistair
name: Wilmot, Emma G
name: Choudhary, Pratik
name: Hussain, Sufyan
Publisher: name: University of Limerick
Year: 2023
Subjects: classificationCode: 42
subject: Health sciences
subject: FOS: Health sciences

description: This best practice guide is written with the aim of providing an overview of current hybrid closed-loop (HCL) systems in use within the United Kingdom's (UK) National Health Service (NHS) and to provide education and advice for their management on both an individual and clinical service level. The environment of diabetes technology, and particularly HCL systems, is rapidly evolving. The past decade has seen unprecedented advances in the development of HCL systems. These systems improve glycaemic outcomes and reduce the burden of treatment for people with type 1 diabetes (pwT1D). It is anticipated that access to these systems will increase in England as a result of updates in National Institute of Health and Care Excellence (NICE) guidance providing broader support for the use of real-time continuous glucose monitoring (CGM) for pwT1D. NICE is currently undertaking multiple-technology appraisal into HCL systems. Based on experience from centres involved in supporting advanced technologies as well as from the recent NHS England HCL pilot, this guide is intended to provide healthcare professionals with UK expert consensus on the best practice for initiation, optimisation and ongoing management of HCL therapy.
Quantum Policy Gradient Algorithm with Optimized Action Decoding
Creators: name: Meyer, Nico
name: Scherer, Daniel D.
name: Plinge, Axel
name: Mutschler, Christopher
name: Hartmann, Michael J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Machine Learning (cs.LG)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Quantum machine learning implemented by variational quantum circuits (VQCs) is considered a promising concept for the noisy intermediate-scale quantum computing era. Focusing on applications in quantum reinforcement learning, we propose a specific action decoding procedure for a quantum policy gradient approach. We introduce a novel quality measure that enables us to optimize the classical post-processing required for action selection, inspired by local and global quantum measurements. The resulting algorithm demonstrates a significant performance improvement in several benchmark environments. With this technique, we successfully execute a full training routine on a 5-qubit hardware device. Our method introduces only negligible classical overhead and has the potential to improve VQC-based algorithms beyond the field of quantum reinforcement learning.
description: Accepted to the 40th International Conference on Machine Learning (ICML 2023), Honolulu, Hawaii, USA. 22 pages, 10 figures, 3 tables
Evaluation of Purchasing Practice At Addis Ababa University College of Commerce
Creators: name: Mesfin, Tewodros
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2007

description: The objective of this research is to critically evaluate the purchasing practice at AAUCC. It was conducted in a bid to find viable solution for the prevailing inefficient and delayed purchasing practices. To this end, the researcher have gathered data from primary sources using questionnaire, interview and personal observations; and referred secondary sources including purchasing manuals and various documents related to purchasing in AAUCC. SPSS soft ware was applied to present and analyze the data gathered from 40 respondents. The major findings of the study indicate that the purchasing function is inefficient and is not given proper attention by the management. Based on the findings the researcher recommended the purchasing function should be improved utilizing systematic ways of handling purchases and providing managerial proper attention and follow up for the unit.
Elementary polytopes with high lift-and-project ranks for strong positive semidefinite operators
Creators: name: Au, Yu Hin
name: Tunçel, Levent
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optimization and Control (math.OC)
subject: Computational Complexity (cs.CC)
subject: Discrete Mathematics (cs.DM)
subject: Data Structures and Algorithms (cs.DS)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: We consider operators acting on convex subsets of the unit hypercube. These operators are used in constructing convex relaxations of combinatorial optimization problems presented as a 0,1 integer programming problem or a 0,1 polynomial optimization problem. Our focus is mostly on operators that, when expressed as a lift-and-project operator, involve the use of semidefiniteness constraints in the lifted space, including operators due to Lasserre and variants of the Sherali--Adams and Bienstock--Zuckerberg operators. We study the performance of these semidefinite-optimization-based lift-and-project operators on some elementary polytopes --- hypercubes that are chipped (at least one vertex of the hypercube removed by intersection with a closed halfspace) or cropped (all $2^n$ vertices of the hypercube removed by intersection with $2^n$ closed halfspaces) to varying degrees of severity $ρ$. We prove bounds on $ρ$ where these operators would perform badly on the aforementioned examples. We also show that the integrality gap of the chipped hypercube is invariant under the application of several lift-and-project operators of varying strengths.
Temperature control of a simulated exothermic batch reactor using Generic Model Control and an Extended Kalman Filter
Creators: name: Chippindall., Luke John
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Missing Corner in the Sky: Massless Three-Point Celestial Amplitudes
Creators: name: Chang, Chi-Ming
name: Ma, Wen-Jie
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present the first computation of three-point celestial amplitudes in Minkowski space of massless scalars, photons, gluons, and gravitons. Such amplitudes were previously considered to be zero in the literature because the corresponding scattering amplitudes in the plane wave basis vanish for finite momenta due to momentum conservation. However, the delta function for the momentum conservation has support in the soft and colinear regions, and contributes to the Mellin and shadow integrals that give non-zero celestial amplitudes. We further show that when expanding in the (shadow) conformal basis for the incoming (outgoing) particle wave functions, the amplitudes take the standard form of correlators in two-dimensional conformal field theory. In particular, the three-point celestial gluon amplitudes take the form of a three-point function of a spin-one current with two spin-one primary operators, which strongly supports the relation between soft spinning particles and conserved currents. Moreover, the three-point celestial amplitudes of one graviton and two massless scalars take the form of a correlation function involving a primary operator of conformal weight one and spin two, whose level-one descendent is the supertranslation current.
description: 25+10 pages, JHEP published version
A new approach and code for spinning black holes in modified gravity
Creators: name: Fernandes, Pedro G. S.
name: Mulryne, David J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss and implement a spectral method approach to computing stationary and axisymmetric black hole solutions and their properties in modified theories of gravity. The resulting code is written in the Julia language and is transparent and easily adapted to new settings. We test the code on both general relativity and on Einstein-Scalar-Gauss-Bonnet gravity. It is accurate and fast, converging on a spinning solution in these theories with tiny errors ($\sim \mathcal{O}\left(10^{-13}\right)$ in most cases) in a matter of seconds.
description: 40 pages, 14 figures. GitHub repository: https://github.com/pgsfernandes/SpinningBlackHoles.jl ; v2: added references, accepted for publication in Classical and Quantum Gravity
Galactic outflow driven by the active nucleus and the origin of the gamma-ray emission in NGC 1068
Creators: name: Lamastra, A.
name: Fiore, F.
name: Guetta, D.
name: Antonelli, L. A.
name: Colafrancesco, S.
name: Menci, N.
name: Puccetti, S.
name: Stamerra, A.
name: Zappacosta, L.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We compute the non-thermal emissions produced by relativistic particles accelerated by the AGN-driven shocks in NGC 1068, and we compare the model predictions with the observed gamma-ray and radio spectra . The former is contributed by pion decay, inverse Compton scattering, and bremsstrahlung, while the latter is produced by synchrotron radiation. We derive the gamma-ray and radio emissions by assuming the standard acceleration theory, and we discuss how our results compare with those corresponding to other commonly assumed sources of gamma-ray and radio emissions, like Supernova remnants (SNR) or AGN jets. We find that the AGN-driven shocks observed in the circumnuclear molecular disk of such a galaxy provide a contribution to the gamma-ray emission comparable to that provided by the starburst activity when standard particle acceleration efficiencies are assumed, while they can yield the whole gamma-ray emission only when the parameters describing the acceleration efficiency and the proton coupling with the molecular gas are tuned to values larger than those assumed in standard, SNR-driven shocks. We discuss the range of acceleration efficiencies (for protons and electrons) and of proton calorimetric fractions required to account for the observed gamma-ray emission in the AGN outflow model. We further compare the neutrino flux expected in our model with constraints from current experiments, and we provide predictions for the detections by the upcoming KM3NeT neutrino telescope. This analysis strongly motivates observations of NGC 1068 at >TeV energies with current and future Cherenkov telescopes in order to gain insight into the nature of the gamma-rays source.
description: 12 pages, 4 figures, accepted for publication in A&A
Deliverable 4.5 Train the Trainers Methodology
Creators: name: Schulbaum, Olivier
name: Nadesan, Nadia
name: Böhm, Katinka
Publisher: name: Zenodo
Year: 2022

description: This deliverable outlines exercises and information to support the use of the Open Observatory and the Visual Analytics Dashboard. What is meant by supporting the use is empowering new participants, stakeholders and cultural heritage communities to not just participate but manage and administrate autonomously on the Open Observatory. The vivacity and diversity of a digital community arises through multiple stakeholders being able to self direct and best use the tools and resources of a digital platform to forward agendas that grow and resource their communities. The inDICEs Open Observatory aims to be a digital space for innovation with diverse participation across Europe. This deliverable captures the work that has been done thus far to create reusable content that partners and stakeholders can use to onboard participants and create new communities, increase skills and capacities on the platform, develop a shared sense of governance within those communities and design community engagement with impact in mind. As in deliverable 5.6, this deliverable has implemented methods such as personas to create an understanding of what skills and topics would be necessary to onboard new stakeholders, enable them to be administrators, develop a framework for community engagement and governance, and work within
 transdisciplinary collaborations to share, develop, or even reuse research within the cultural heritage sector.
Kernel subspace methods in computer vision
Creators: name: Chin., Tat-Jun
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Vector-valued invariant means revisited once again
Creators: name: Kania, Tomasz
Publisher: name: arXiv
Year: 2016
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 43A07 (primary), 46B50 (secondary)

description: Banach spaces that are complemented in the second dual are characterised precisely as those spaces $X$ which enjoy the property that for every amenable semigroup $S$ there exists an $X$-valued analogue of an invariant mean defined on the Banach space of all bounded $X$-valued functions on $S$. This was first observed by Bustos Domecq (J. Math. Anal. Appl., 2002), however the original proof was slightly flawed as remarked by Lipecki. The primary aim of this note is to present a corrected version of the proof. We also demonstrate that universally separably injective spaces always admit invariant means with respect to countable amenable semigroups, thus such semigroups are not rich enough to capture complementation in the second dual as spaces falling into this class need not be complemented in the second dual.
On the solution of Liouville equation
Creators: name: Menotti, Pietro
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We give a short and rigorous proof of the existence and uniqueness of the solution of Liouville equation with sources, both elliptic and parabolic, on the sphere and on all higher genus compact Riemann surfaces.
description: 10 pages
A historical introduction to the symmetries of magnetic structures: Part 1. Early quantum theory, neutron powder diffraction and the colored space groups
Creators: name: Wills, Andrew S
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: This paper introduces the historical development of the symmetries for describing magnetic structures culminating in the derivation of the black and white and colored space groups. Beginning from the Langevin model of the Curie law, it aims to show the challenges that magnetic ordering presented and how different symmetry frameworks were developed to meet them. As well as explaining core ideas, later papers will show how the different schemes are connected. With these goals in mind, the maths related is kept to the minimum required for clarity.
description: 10 figures
Determinants of Primary Commodity Export in Sub-Saharan Africa (A Panel Study)
Creators: name: Worku, Ibrahim
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2007

description: The paper examines the implication of demand and supply side factors on SSA primary commodity export performance. A Sample of 21 countries is selected for the period 1995 to 2005, thus forming a panel data. The simultaneous equation disequilibrium version of Goldstein and Khan (1978) model is used for the analysis. In addition to the usual price and quantity variables, the model is augmented with policy actions of both exporting and importing countries. This model is estimated using both difference generalized method of moments (DGMM) and system generalized method of moments (SGMM). In addition, the study tests whether the small country assumption holds true using Brownes' (1982) specification of the model. Using the first model, we found that the policy choices and actions of the importing countries are major constraints of the export sector. Although the supply side factors are found to be weak, when compared with the demand side factors, income and road are found to be significant in explaining the sectors performance. Taking the small country assumption into consideration, all the domestic factors are significant in explaining the export performance. In general, the results of the study indicate that the export sector is inelastic for both the external and internal factors. So we can infer that, the export of primary commodity is constrained by both the domestic and external factors. Consequently, there is a need to switch to other export earning mechanism and/or to provide enough attention in alleviating the constraints.
Dynamics of a family of polynomial automorphisms of $\mathbb{C}^3$, a phase transition
Creators: name: Déserti, Julie
name: Leguil, Martin
Publisher: name: arXiv
Year: 2016
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 32H50, 37F10

description: The polynomial automorphisms of the affine plane have been studied a lot: if $f$ is such an automorphism, then either $f$ preserves a rational fibration, has an uncountable centralizer and its first dynamical degree equals $1$, or $f$ preserves no rational curves, has a countable centralizer and its first dynamical degree is $>1$. In higher dimensions there is no such description. In this article we study a family $(Ψ_α)_α$ of polynomial automorphisms of $\mathbb{C}^3$. We show that the first dynamical degree of $Ψ_α$ is $>1$, that $Ψ_α$ preserves a unique rational fibration and has an uncountable centralizer. We then describe the dynamics of the family $(Ψ_α)_α$, in particular the speed of points escaping to infinity. We also observe different behaviors according to the value of the parameter $α$.
Memo Certifying Internship (1944-05-04)
Creators: name: Jewish Hospital In Hamburg
Publisher: name: University of Victoria Libraries
Year: 2020
Subjects: subject: Employment references
valueUri: http://id.worldcat.org/fast/909381
subject: Jewish hospitals
valueUri: http://id.worldcat.org/fast/1739255
subject: Education
valueUri: http://id.worldcat.org/fast/902499
subject: Preuss, Siegfried
subject: Medical colleges
valueUri: http://id.worldcat.org/fast/1013952
subject: Interns (Medicine)
valueUri: http://id.worldcat.org/fast/977321

description: Translated memo from Baruch at the Jewish Hospital in Hamburg stating that Siegfried Preuss was employed as an intern and voluntary assistant at the Jewish Hospital from 1 March 1936 until 8 February 1938. Witness from Cleveland, Ohio, signs to certify that the above was a true translation from the original. Notary certified translation. Original letter written 1938-02-08; Translation signed 1944-05-04.
Spin-pumping from a ferromagnetic insulator to an unconventional superconductor with interfacial Andreev bound-states
Creators: name: Sun, Chi
name: Linder, Jacob
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Spin-pumping from a ferromagnetic insulator into a high-$T_c$ superconductor with a $d$-wave superconducting order parameter has recently been experimentally observed. Such unconventional superconducting order is known to produce interfacial bound-states for certain crystallographic orientations. Here, we present a methodology which can be used to study spin-pumping into unconventional superconductors, including the role of interfacial bound-states. As an example, we determine how the crystallographic orientation of the $d$-wave order parameter relative the interface changes the spin-pumping effect. We find that the spin-pumping effect is slightly enhanced at low temperatures for orientations hosting interfacial bound-states compared to other superconducting states. However, the spin-pumping effect does not show a coherence peak close to $T_c$ for such orientations, and instead remains smaller than the normal state value for all $T$. For orientations not hosting interfacial bound-states, we find that the pumped spin current can be increased to several times the normal-state spin current at frequencies that are small compared to the superconducting gap. Our results show that the spin-pumping dependency on frequency and temperature changes qualitatively depending on the crystallographic orientation of unconventional superconducting order parameters relative the interface.
description: 12 pages, 4 figures
Two Mindsets among U.S. Journalists: Neutral & Activist
Creators: name: Munno, Greg
name: Craig, Megan
name: Farrish, Kate
name: Richards, Alex
Publisher: name: Taylor & Francis
Year: 2022
Subjects: Medicine
Developmental Biology
Science Policy

description: This mixed-method study examines the mindset journalists in the United States bring to their work in an effort to gain insight into emerging journalistic viewpoints and their relationship to established doctrines and roles. Study 1 (n = 167) asked professional journalists, journalism professors, and student journalists to rank statements on journalism ethics and norms from most to least like their mindset toward the profession. Using the factor analysis procedure common to Q methodology, we identified two distinct mindsets among the participants. One factor expresses a neutral journalistic mindset that favors dispassionate reporting. The other shows more concern with the impact of journalism on its sources and a desire for more engagement in political discourse. A participant pool larger than that of a typical Q study allowed for additional quantitative analysis that identified significant differences in mindset by age, gender, professional experience, and journalistic platform. Using an explanatory-sequential design, study 2 (n = 16) further explored the journalistic mindset—the underlying web of beliefs and attitudes about the profession’s core values—with a textual analysis of follow-up interviews. The results have applications to research on journalistic norms, boundaries, and ethics, and may provide insight into the divisions generating conflict in many newsrooms today.
Leptogenesis via Inflaton Mass Terms in Non-Minimally Coupled Inflation
Creators: name: Lloyd-Stubbs, Kit
name: McDonald, John
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider a model of baryogenesis based on adding lepton number-violating quadratic mass terms to the inflaton potential of a non-minimally coupled inflation model. The $L$-violating mass terms generate a lepton asymmetry in a complex inflaton field via the mass term Affleck-Dine mechanism, which is transferred to the Standard Model (SM) sector when the inflaton decays to right-handed (RH) neutrinos. The model is minimal in that it requires only the SM sector, RH neutrinos, and a non-minimally coupled inflaton sector. We find that baryon isocurvature fluctuations can be observable in metric inflation but are negligible in Palatini inflation. The model is compatible with reheating temperatures that may be detectable in the observable primordial gravitational waves predicted by metric inflation.
description: 18 pages, 6 figures. Published version
Non-Newtonian fluid particle systems: sphere drag
Creators: name: Chhabra., Rajendra Prasad
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Casimir force of two-component Bose-Einstein condensates confined by a parallel plate geometry
Creators: name: Van Thu, Nguyen
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Using field theory we calculate the Casimir energy and Casimir force of two-component Bose-Einstein condensates restricted between two parallel plates, in which Dirichlet and periodic boundary conditions applied. Our results show that, in one-loop approximation, the Casimir force equals to summation of the one of each component and it is vanishing in some cases: (i) inter-distance between two plates becomes large enough; (ii) intraspecies interaction is zero; (iii) interspecies interaction is full strong segregation.
The Demand for Curative Health Care in Jimma Town: Choosing Between Health Care Providers
Creators: name: Arega, Tesfaye
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2003

description: This paper tried to estimate the demand for curative health care in Jimma town. Based on economic theory and past studies, NMNL (Nested Multinomial Logit) model is identified and estimated using sequential estimation procedure. For the estimation of the model the study used primary data which were collected from Jimma town through sample survey during the month of February 2003. The estimated model shows that the level of healthiness, family structure (number of children), consumption level, patient's age and perceived quality of treatment are important factors that determine the demand for curative health care. Furthermore, the study indicates the price insensitiveness of the demand for curative health care services. However, the price insensitiveness decreases as prices increases and as income decreases implying that the poor are more price sensitive than the rich. The policy implication of the result is that the modest differentiated increase in price of public hospital results in substantial increase in revenue. The differentiated increase in price helps the poor section of the society and children by decreasing the free riding by the rich. Moreover, the study result implies that the introduction of higher user fees should also be accompanied by increase in quality of hospital services in order to offset the negative effects of higher price. Taking the two measures together, increasing user fees and increasing quality of services, helps to achieve dual benefit in health care system by increasing revenue and health service utilization simultaneously. Key words: demand for curative health care, mode of treatment, self-care, modern medical care, NMNL, user fees, price sensitiveness.
Crystallization of IPS and HDPE under non-isothermal conditions
Creators: name: Chyne., Spencer Chew Yew
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Localising In-Domain Adaptation of Transformer-Based Biomedical Language Models
Creators: name: Buonocore, Tommaso Mario
name: Crema, Claudio
name: Redolfi, Alberto
name: Bellazzi, Riccardo
name: Parimbelli, Enea
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences
subject: I.2.7; J.3

description: In the era of digital healthcare, the huge volumes of textual information generated every day in hospitals constitute an essential but underused asset that could be exploited with task-specific, fine-tuned biomedical language representation models, improving patient care and management. For such specialized domains, previous research has shown that fine-tuning models stemming from broad-coverage checkpoints can largely benefit additional training rounds over large-scale in-domain resources. However, these resources are often unreachable for less-resourced languages like Italian, preventing local medical institutions to employ in-domain adaptation. In order to reduce this gap, our work investigates two accessible approaches to derive biomedical language models in languages other than English, taking Italian as a concrete use-case: one based on neural machine translation of English resources, favoring quantity over quality; the other based on a high-grade, narrow-scoped corpus natively written in Italian, thus preferring quality over quantity. Our study shows that data quantity is a harder constraint than data quality for biomedical adaptation, but the concatenation of high-quality data can improve model performance even when dealing with relatively size-limited corpora. The models published from our investigations have the potential to unlock important research opportunities for Italian hospitals and academia. Finally, the set of lessons learned from the study constitutes valuable insights towards a solution to build biomedical language models that are generalizable to other less-resourced languages and different domain settings.
description: 8 pages, 2 figures, 6 tables. Published in Journal of Biomedical Informatics
Telling a Different Story: A Longitudinal Investigation of News Diversity in Four Countries
Creators: name: de Vries, Erik
name: Vliegenthart, Rens
name: Walgrave, Stefaan
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Molecular Biology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Marine Biology
subject: Cancer
subject: Science Policy

description: News diversity is an important concern of journalism scholars, as its presence or absence can have a profound effect on democratic debate and the information available to citizens. Many have speculated that news diversity decreases over time, due to changing economic circumstances. This expectation especially applies to newspapers. Using nearly two decades of newspaper data from four European countries (Denmark, The Netherlands, Norway, UK), we do not find this expected decrease in news diversity. When conducting pairwise, automated comparisons between articles published on the same day in the same country, we rather find a modest over time increase in diversity between newspapers. This result suggests that newspapers differentiate rather than converge in the content they offer, shedding a more positive light on the evolution of the press in our current high-choice media environments.
Apocenter glow in eccentric debris disks: implications for Fomalhaut and epsilon Eridani
Creators: name: Pan, Margaret
name: Nesvold, Erika R.
name: Kuchner, Marc J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Debris disks often take the form of eccentric rings with azimuthal asymmetries in surface brightness. Such disks are often described as showing "pericenter glow", an enhancement of the disk brightness in regions nearest the central star. At long wavelengths, however, the disk apocenters should appear brighter than their pericenters: in the long wavelength limit, we find the apocenter/pericenter flux ratio scales as 1+e for disk eccentricity e. We produce new models of this "apocenter glow" to explore its causes and wavelength dependence and study its potential as a probe of dust grain properties. Based on our models, we argue that several far-infrared and (sub)millimeter images of the Fomalhaut and epsilon Eridani debris rings obtained with Herschel, JCMT, SHARC II, ALMA, and ATCA should be reinterpreted as suggestions or examples of apocenter glow. This reinterpretation yields new constraints on the disks' dust grain properties and size distributions.
description: 20 pages, 7 figures; accepted to ApJ
Planetesimal clearing and size-dependent asteroid retention by secular resonance sweeping during the depletion of the solar nebula
Creators: name: Zheng, Xiaochen
name: Lin, Douglas N. C.
name: Kouwenhoven, M. B. N.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The distribution of heavy elements is anomalously low in the asteroid main belt region compared with elsewhere in the solar system. Observational surveys also indicate a deficit in the number of small ($ \le 50$~km size) asteroids that is two orders of magnitude lower than what is expected from the single power-law distribution that results from a collisional coagulation and fragmentation equilibrium. Here, we consider the possibility that a major fraction of the original asteroid population may have been cleared out by Jupiter's secular resonance, as it swept through the main asteroid belt during the depletion of the solar nebula. This effect leads to the excitation of the asteroids' orbital eccentricities. Concurrently, hydrodynamic drag and planet-disk tidal interaction effectively damp the eccentricities of sub-100 km-size and of super-lunar-size planetesimals, respectively. These combined effects lead to the asteroids' orbital decay and clearing from the present-day main belt region ($\sim 2.1-3.3$~AU). The intermediate-size (50 to several hundreds of kilometers) planetesimals therefore preferentially remain as main belt asteroids near their birthplaces, with modest asymptotic eccentricities. The smaller asteroids are the fragments of subsequent disruptive collisions at later times as suggested by the present-day asteroid families. This scenario provides a natural explanation for both the observed low surface density and the size distribution of asteroids in the main belt. It also offers an explanation for the confined spatial extent of the terrestrial planet building blocks without the requirement of extensive migration of Jupiter.
description: 26 pages, 18figures, accepted for publication in the ApJ
Integrability of two-species partially asymmetric exclusion processes
Creators: name: Lobaskin, Ivan
name: Evans, Martin R
name: Mallick, Kirone
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We work towards the classification of all one-dimensional exclusion processes with two species of particles that can be solved by a nested coordinate Bethe Ansatz. Using the Yang-Baxter equations, we obtain conditions on the model parameters that ensure that the underlying system is integrable. Three classes of integrable models are thus found. Of these, two classes are well known in literature, but the third has not been studied until recently, and never in the context of the Bethe ansatz. The Bethe equations are derived for the latter model as well as for the associated dynamics encoding the large deviation of the currents.
description: 15 pages, 2 figures. Typo in equation (21) corrected. Extra step detail added in Appendix A, case 1, option \alpha=1; Figure A.1 updated accordingly
CV (1980s)
Creators: name: Preuss, Siegfried
Publisher: name: University of Victoria Libraries
Year: 2020
Subjects: subject: Preuss, Siegfried
subject: Physicians
valueUri: http://id.worldcat.org/fast/1062841
subject: Résumés (Employment)
valueUri: http://id.worldcat.org/fast/1102680

description: CV for Fred Preuss listing medical education, medical license, memberships, training and experience, present positions, and publications. "Present positions" has been crossed out and someone has added ending dates of 1982 for all these positions.
Nano scale thermo-electrical detection of magnetic domain wall propagation
Creators: name: Krzysteczko, Patryk
name: Wells, James
name: Scarioni, Alexander Fernandez
name: Soban, Zbynek
name: Janda, Tomas
name: Hu, Xiukun
name: Saidl, Vit
name: Campion, Richard P.
name: Mansell, Rhodri
name: Lee, Ji-Hyun
name: Cowburn, Russell P.
name: Nemec, Petr
name: Kazakova, Olga
name: Wunderlich, Joerg
name: Schumacher, Hans Werner
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In magnetic nanowires with perpendicular magnetic anisotropy (PMA) magnetic domain walls (DW) are narrow and can move rapidly driven by current induced torques. This enables important applications like high-density memories for which the precise detection of the position and motion of a propagating DW is of utmost interest. Today's DW detection tools are often limited in resolution, or acquisition speed, or can only be applied on specific materials. Here, we show that the anomalous Nernst effect provides a simple and powerful tool to precisely track the position and motion of a single DW propagating in a PMA nanowire. We detect field and current driven DW propagation in both metallic heterostructures and dilute magnetic semiconductors over a broad temperature range. The demonstrated spatial resolution below 20 nm is comparable to the DW width in typical metallic PMA systems.
description: 26 pages including supplementary information