cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Effect of Financial Liberalization on Economic Development in Ethiopia
Creators: name: Mohammed, Omer
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2016

description: Financial Liberalization emphasizes on the leading role of market forces in the financial sector of the economy and it is one of the debatable issues in the world economy. However, it is far from clear how financial liberalization actually affects the economy in general and the financial system in particular. Thus, this study aims to empirically examine the impact of financial liberalization on economic development in Ethiopia over the period of 1984-2014. In doing so, the ARDL approach to Co-integration and Error Correction Model were employed to investigate the long run and short run relationships. Accordingly, the empirical results obtained from the study indicate that financial widening has contributed significantly to the increase in saving and the level of economic growth. Even though, the total deposit happens to generate more investment; there is shortage of supply of credit. In addition, the study indicates financial widening and credit to the private sector exhibited a significant positive association with financial development while total banks credit bearing a significant impact on industrial development. However, the overall financial reform showed insignificant association both with economic growth and industrial development. The efficiency in allocating financial resources show significant positive association with share of banks credit to the private sector, however, the overall financial reform has positive insignificant impact on efficiency of resource allocation. The contribution of financial sector after the deregulation has a mixed result on welfare. In terms of catalyzing employment opportunity, financial widening and the overall liberalization policy measure have played a positive role while the financial development has no significant impact on employment creation. Financial widening has significant positive impact on poverty alleviation while the overall policy measure has insignificant impact on the impoverished. Consequently, the result of the study indicate the overall financial liberalization measure actually decrease the likelihood of financial instability and indicates the direction of causality going from economic growth to financial development proving the demand leading hypothesis, which in turn portrays the heavy involvement of government in the financial sector. Key words: Financial liberalization, Financial liberalization index
Composite fermion duality for half-filled multicomponent Landau Levels
Creators: name: Sodemann, Inti
name: Kimchi, Itamar
name: Wang, Chong
name: Senthil, T.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the interplay of particle-hole symmetry and fermion-vortex duality in multicomponent half-filled Landau levels, such as quantum Hall gallium arsenide bilayers and graphene. For the $ν{=}1/2{+}1/2$ bilayer, we show that particle-hole-symmetric interlayer Cooper pairing of composite fermions leads to precisely the same phase as the electron exciton condensate realized in experiments. This equivalence is easily understood by applying the recent Dirac fermion formulation of $ν{=}1/2$ to two components. It can also be described by Halperin-Lee-Read composite fermions undergoing interlayer $p_x{+}ip_y$ pairing. An RG analysis showing strong instability to interlayer pairing at large separation $d\rightarrow \infty$ demonstrates that two initially-decoupled composite Fermi liquids can be smoothly tuned into the conventional bilayer exciton condensate without encountering a phase transition. We also discuss multicomponent systems relevant to graphene, derive related phases including a $Z_2$ gauge theory with spin-half visons, and argue for symmetry-enforced gaplessness under full SU$(N_f)$ flavor symmetry when the number of components $N_f$ is even.
description: 24 pages, 4 figures
Subspace foliations and collapse of closed flat manifolds
Creators: name: Bettiol, Renato G.
name: Derdzinski, Andrzej
name: Mossa, Roberto
name: Piccione, Paolo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Differential Geometry (math.DG)
subject: Metric Geometry (math.MG)
subject: FOS: Mathematics
subject: 22E40, 53C12, 53C15, 53C29, 51F25, 57R18

description: We study relations between certain totally geodesic foliations of a closed flat manifold and its collapsed Gromov-Hausdorff limits. Our main results explicitly identify such collapsed limits as flat orbifolds, and provide algebraic and geometric criteria to determine whether they are singular.
description: LaTeX2e, 21 pages, final (revised) version. To appear in Math. Nachr
A random cover of a compact hyperbolic surface has relative spectral gap $\frac{3}{16}-\varepsilon$
Creators: name: Magee, Michael
name: Naud, Frédéric
name: Puder, Doron
Publisher: name: arXiv
Year: 2020
Subjects: subject: Spectral Theory (math.SP)
subject: Analysis of PDEs (math.AP)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 58J50, 05C80, 20P05, 11F72, 20C30, 20F65

description: Let $X$ be a compact connected hyperbolic surface, that is, a closed connected orientable smooth surface with a Riemannian metric of constant curvature -1. For each $n\in\mathbf{N}$, let $X_{n}$ be a random degree-$n$ cover of $X$ sampled uniformly from all degree-$n$ Riemannian covering spaces of $X$. An eigenvalue of $X$ or $X_{n}$ is an eigenvalue of the associated Laplacian operator $Δ_{X}$ or $Δ_{X_{n}}$. We say that an eigenvalue of $X_n$ is new if it occurs with greater multiplicity than in $X$. We prove that for any $\varepsilon>0$, with probability tending to 1 as $n\to\infty$, there are no new eigenvalues of $X_n$ below $\frac{3}{16}-\varepsilon$. We conjecture that the same result holds with $\frac{3}{16}$ replaced by $\frac{1}{4}$.
description: 54 pages, 5 figures. Accepted for publication in GAFA. This version: journal version, incorporated referees' comments and added figures
Storage-yield analysis by rapid procedures
Creators: name: Teoh, Choon-Hooi.
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.
EPIC 219388192 b - an inhabitant of the brown dwarf desert in the Ruprecht 147 open cluster
Creators: name: Nowak, Grzegorz
name: Palle, Enric
name: Gandolfi, Davide
name: Dai, Fei
name: Lanza, Antonino F.
name: Hirano, Teruyuki
name: Barragán, Oscar
name: Fukui, Akihiko
name: Bruntt, Hans
name: Endl, Michael
name: Cochran, William D.
name: Prieto-Arranz, Jorge
name: Kiilerich, Amanda
name: Nespral, David
name: Hatzes, Artie P.
name: Albrecht, Simon
name: Deeg, Hans
name: Winn, Joshua N.
name: Yu, Liang
name: Kuzuhara, Masayuki
name: Grziwa, Sascha
name: Smith, Alexis M. S.
name: Moroni, Pier G. Prada
name: Guenther, Eike W.
name: Van Eylen, Vincent
name: Csizmadia, Szilard
name: Fridlund, Malcolm
name: Cabrera, Juan
name: Eigmüller, Philipp
name: Erikson, Anders
name: Korth, Judith
name: Narita, Norio
name: Pätzold, Martin
name: Rauer, Heike
name: Ribas, Ignasi
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report the discovery of EPIC 219388192 b, a transiting brown dwarf in a 5.3-day orbit around a member star of Ruprecht-147, the oldest nearby open cluster association, which was photometrically monitored by K2 during its Campaign 7. We combine the K2 time-series data with ground-based adaptive optics imaging and high resolution spectroscopy to rule out false positive scenarios and determine the main parameters of the system. EPIC 219388192 b has a radius of $R_\mathrm{b}$=$0.937\pm0.042$~$\mathrm{R_{Jup}}$ and mass of $M_\mathrm{b}$=$36.50\pm0.09$~$\mathrm{M_{Jup}}$, yielding a mean density of $59.0\pm8.1$~$\mathrm{g\,cm^{-3}}$. The host star is nearly a Solar twin with mass $M_\star$=$0.99\pm0.05$~$\mathrm{M_{\odot}}$, radius $R_\star$=$1.01\pm0.04$~$\mathrm{R_{\odot}}$, effective temperature $\mathrm{T_{eff}}$=$5850\pm85$~K and iron abundance [Fe/H]=$0.03\pm0.08$~dex. Its age, spectroscopic distance, and reddening are consistent with those of Ruprecht-147, corroborating its cluster membership. EPIC 219388192 b is the first brown dwarf with precise determinations of mass, radius and age, and serves as benchmark for evolutionary models in the sub-stellar regime.
description: 13 pages, 11 figures, 4 tables, submitted to AAS Journals
The Isoline Tracking in Unknown Scalar Fields with Concentration Feedback
Creators: name: Dong, Fei
name: You, Keyou
Publisher: name: arXiv
Year: 2020
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The isoline tracking of this work is concerned with the control design for a sensing vehicle to track a desired isoline of an unknown scalar field. To this end, we propose a simple PI-like controller for a Dubins vehicle in the GPS-denied environments. Our key idea lies in the design of a novel sliding surface based error in the standard PI controller. For the circular field, we show that the P-like controller can globally regulate the vehicle to the desired isoline with the steady-state error that can be arbitrarily reduced by increasing the P gain, and is eliminated by the PI-like controller. For any smoothing field, the P-like controller is able to achieve the local regulation. Then, it is extended to the cases of a single-integrator vehicle and a doubleintegrator vehicle, respectively. Finally, the effectiveness and advantages of our approaches are validated via simulations on the fixed-wing UAV and quadrotor simulators.
Everyday Life and Essenc
Creators: name: Browning, Walter
Publisher: name: University of Chicago
Year: 2022

description: This text of Political Theory seeks to bind together the thought of Theador Adorno and Michel de Certeau by re-visiting Marx's Capital: Vol. 1. In doing so, the paper arrives at a central question of political thought: what is essence? I constellate an understanding of essence from Marx, seeking to apply it both to de Certeau and contemporary political phenomena. Essence becomes a useful tool to understand the relationship between the capitalist subject and object, and their ultimate formation of the capitalist everyday life. It displays that imbedded within each object of capital is a static and dynamic dialectical moment where both oppression and liberation are harbored as potential energy. How each moment is actually realized, however, is grim.
Outer-planet scattering can gently tilt an inner planetary system
Creators: name: Gratia, Pierre
name: Fabrycky, Daniel
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Chaotic dynamics are expected during and after planet formation, and a leading mechanism to explain large eccentricities of gas giant exoplanets is planet-planet gravitational scattering. The same scattering has been invoked to explain misalignments of planetary orbital planes with respect to their host star's spin. However, an observational puzzle is presented by Kepler-56, which has two inner planets (b and c) that are nearly coplanar with each other, yet are more than 45 degrees inclined to their star's equator. Thus the spin-orbit misalignment might be primordial. Instead, we further develop the hypothesis in the discovery paper, that planets on wider orbits generated misalignment through scattering, and as a result gently torqued the inner planets away from the equator plane of the star. We integrated the equations of motion for Kepler-56 b and c along with an unstable outer system initialized with either two or three Jupiter-mass planets. We address here whether the violent scattering that generates large mutual inclinations can leave the inner system intact, tilting it gently. In almost all of the cases initially with two outer planets, either the inner planets remain nearly coplanar with each other in the star's equator plane, or they are scattered violently to high mutual inclination and high spin-orbit misalignment. On the contrary, of the systems with three unstable outer planets, a spin-orbit misalignment large enough to explain the observations is generated 28% of the time for coplanar inner planets, which is consistent with the observed frequency of this phenomenon reported so far. We conclude that multiple-planet scattering in the outer parts of the system may account for this new population of coplanar planets hosted by oblique stars.
description: 10 pages, 16 figures, 3 tables. Revised according to a positive referee report. Comments welcome
Quantum critical properties of a metallic spin density wave transition
Creators: name: Gerlach, Max H.
name: Schattner, Yoni
name: Berg, Erez
name: Trebst, Simon
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We report on numerically exact determinantal quantum Monte Carlo simulations of the onset of spin-density wave (SDW) order in itinerant electron systems captured by a sign-problem-free two-dimensional lattice model. Extensive measurements of the SDW correlations in the vicinity of the phase transition reveal that the critical dynamics of the bosonic order parameter are well described by a dynamical critical exponent z = 2, consistent with Hertz-Millis theory, but are found to follow a finite-temperature dependence that does not fit the predicted behavior of the same theory. The presence of critical SDW fluctuations is found to have a strong impact on the fermionic quasiparticles, giving rise to a dome-shaped superconducting phase near the quantum critical point. In the superconducting state we find a gap function that has an opposite sign between the two bands of the model and is nearly constant along the Fermi surface of each band. Above the superconducting $T_c$ our numerical simulations reveal a nearly temperature and frequency independent self energy causing a strong suppression of the low-energy quasiparticle spectral weight in the vicinity of the hot spots on the Fermi surface. This indicates a clear breakdown of Fermi liquid theory around these points.
description: 18 pages, 26 figures
The Impact of Corporate Governance Mechanisms on Firm's Financial Performance: Evidence from Commercial Banks in Ethiopia
Creators: name: Ferede, Yenesew
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2012

description: Corporate governance has become an issue of global significance and has received new urgency due to various corporate scandals and failure. This paper investigates the impact of corporate governance mechanisms on firms' financial performance using five years data from the year 2007 to 2011 with a sample of eight Ethiopian commercial banks. Three financial performance indicators such as return on asset, return on equity and net interest margin were used. Corporate governance mechanisms considered in this study include board size, board gender diversity, board members educational qualification, board members business management and industry specific experience, and audit committee size. The study controls the effect of size, leverage and growth of banks. The regression results show that large size board and audit committee negatively influences financial performance; whereas board members educational qualification positively associated with financial performance. While industry specific experience of director positively related with return on asset but it has a negative effect on net interest margin. Finally, the percentage of female directors and board members business management experience does not have a significant effect. In general, the findings suggest that banks with effective corporate governance mechanisms improve financial performance depending on the measure used although not all corporate governance mechanisms are significant. Keywords: Corporate Governance Mechanisms, Agency Theory, Financial Performance Commercial Banks and Ethiopia
Second-order perturbation theory: the problem of infinite mode coupling
Creators: name: Miller, Jeremy
name: Wardell, Barry
name: Pound, Adam
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Second-order self-force computations, which will be essential in modeling extreme-mass-ratio inspirals, involve two major new difficulties that were not present at first order. One is the problem of large scales, discussed in [Phys. Rev. D 92, 104047 (2015)]. Here we discuss the second difficulty, which occurs instead on small scales: if we expand the field equations in spherical harmonics, then because the first-order field contains a singularity, we require an arbitrarily large number of first-order modes to accurately compute even a single second-order mode. This is a generic feature of nonlinear field equations containing singularities, allowing us to study it in the simple context of a scalar toy model in flat space. Using that model, we illustrate the problem and demonstrate a robust strategy for overcoming it.
description: 18 pages, 6 figures, submitted to PRD
Investment on Accounting Information System (IAIS) Effect on Bank Performance: [A Case of Private Commercial Banks In Ethiopia]
Creators: name: Kebede, Taddesse
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2015

description: The main aim of this study is to assess the impact of Investment made on Accounting Information System and its effect on Banks performance in the case of private commercial Banks in Ethiopia. In order to fulfill the stated objective an exploratory research design with a quantitative panel data was used. To this end, the researcher relied on consecutive ten years Annual Audited Financial Report of selected seven Private Commercial Banks in Ethiopia using a purposive sampling method for the period 2005 – 2014. The study employed a multivariate regression model using Return on Asset (ROA), Return on Equity (ROE) and Productivity (PROD) as a dependent variable for measuring the financial performance of the selected Banks and three independent explanatory variables used as a component of Accounting Information Systems; Infrastructure, software and Services. The researcher also controlled for the effects of size (measured by log of total assets). Based on a balanced panel constructed ordinary least squares (OLS) and random effects, the study finds that Investment on AIS's services provided by IT personnel payroll, hiring, training, evaluating and related costs has a significant and positive impact followed by investment on AIS's software which was consistent with the researcher's expectation. While Investment on AIS's infrastructure was found to have a negative but insignificant impact. The remaining variable, SIZE had positive but insignificant effect on their performance. The overall results revealed that Investment on AIS have a significant impact on the financial performance of Private commercial Banks in Ethiopia. Hence, based on the findings of the study the researcher conclude that, performance of infrastructure was not productive as expected and should have to consistent with the quality of AIS's service and appropriate implementation of AIS's software. Finally, as was indicated in the scope and limitation section this study was only confined to the Private commercial Banks in Ethiopia. Hence, the study could be further enhanced by including the State owned banks. The study could also developed by including more independent and control variables to the regression model. Moreover, if further studies should supplemented with qualitative data, the findings would be more informative. Key words: Investment on Accounting Information System, Private Bank Performance, Panel, Ethiopia
The corrosion behaviour of steel prestressing tendons under high pH conditions
Creators: name: Price, S. M.
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.
Quenching of charge and spin degrees of freedom in condensed matter
Creators: name: Kagawa, Fumitaka
name: Oike, Hiroshi
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Electrons in condensed matter have internal degrees of freedom, such as charge, spin and orbital, leading to various forms of ordered states through phase transitions. However, in individual materials, a charge/spin/orbital ordered state of the lowest temperature is normally uniquely determined in terms of the lowest-energy state, i.e., the ground state. Here, we summarize recent results showing that under rapid cooling, this principle does not necessarily hold, and thus, the cooling rate is a control parameter of the lowest-temperature state beyond the framework of the thermo-equilibrium phase diagram. Although the cooling rate utilized in low-temperature experiments is typically 2*10^-3 - 4*10^-1 K/s, the use of optical/electronic pulses facilitate rapid cooling, such as 10^2-10^3 K/s. Such an unconventionally high cooling rate allows some systems to kinetically avoid a first-order phase transition, resulting in a quenched charge/spin state that differs from the ground state. We also demonstrate that quenched states can be exploited as a non-volatile state variable when designing phase-change memory functions. The present findings suggest that rapid cooling is useful for exploring and controlling the metastable electronic/magnetic state that is potentially hidden behind the ground state.
description: 21 pages, 5 figures, short review paper, published online in Adv. Mat
Entanglement Entropy of Local Operators in Quantum Lifshitz Theory
Creators: name: Zhou, Tianci
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the growth of entanglement entropy(EE) of local operator excitation in the quantum Lifshitz model which has dynamic exponent z = 2. Specifically, we act a local vertex operator on the groundstate at a distance $l$ to the entanglement cut and calculate the EE as a function of time for the state's subsequent time evolution. We find that the excess EE compared with the groundstate is a monotonically increasing function which is vanishingly small before the onset at $t \sim l^2$ and eventually saturates to a constant proportional to the scaling dimension of the vertex operator. The quasi-particle picture can interpret the final saturation as the exhaustion of the quasi-particle pairs, while the diffusive nature of the time scale $t \sim l^2$ replaces the common causality constraint in CFT calculation. To further understand this property, we compute the excess EE of a small disk probe far from the excitation point and find chromatography pattern in EE generated by quasi-particles of different propagation speeds.
Is ambient air pollution a risk factor for Parkinson's disease? A meta-analysis of epidemiological evidence
Creators: name: Dhiman, Vikas
name: Trushna, Tanwi
name: Raj, Dharma
name: Tiwari, Rajnarayan Ramshankar
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Space Science
subject: Medicine
subject: Biotechnology
classificationCode: 59999
subject: Environmental Sciences not elsewhere classified
classificationCode: 39999
subject: Chemical Sciences not elsewhere classified
classificationCode: 69999
subject: Biological Sciences not elsewhere classified
classificationCode: 80699
subject: Information Systems not elsewhere classified
subject: Cancer
subject: Science Policy

description: Current evidence shows inconsistencies about ambient air pollution (AAP) exposure as a risk factor for Parkinson’s disease (PD). We performed meta-analyses to estimate the pooled risk of PD due to AAP exposure. We performed a systematic search in PubMed, Google Scholar, The Cochrane Library, and J-GATEPLUS databases for peer-reviewed epidemiological studies reporting the risk of PD due to exposure to PM2.5, PM10, O3, CO, NO2, NOX and SO2; from the beginning until October 2021. The pooled odds ratio (OR) for the effect of NO2 (per 1 μg/m3) and O3 (per 1 ppb) on PD was 1.01[95% CI: 1.00,1.02; I2 = 69% (p = .01)] and 1.01 [95% CI: 1.00,1.02; I2 = 66% (p = .03)], respectively. The ORs for the effects of PM2.5 (per 1 µg/m3) and CO (per 1 ppm) on PD were 1.01 [95% CI: .99,1.03; I2 = 40%] and 1.64 [95% CI: .96,2.78; I2 = 75% (p = .01)], respectively. The study showed the adverse roles of NO2, O3, PM2.5, and CO in increasing the risk for PD.
Complete embedded complex curves in the ball of $\mathbb{C}^2$ can have any topology
Creators: name: Alarcon, Antonio
name: Globevnik, Josip
Publisher: name: arXiv
Year: 2016
Subjects: subject: Complex Variables (math.CV)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: In this paper we prove that the unit ball $\mathbb{B}$ of $\mathbb{C}^2$ admits complete properly embedded complex curves of any given topological type. Moreover, we provide examples containing any given closed discrete subset of $\mathbb{B}$.
description: 13 pages
Motzkin Algebras and the $A_n$ Tensor Categories of Bimodules
Creators: name: Jones, Vaughan F. R.
name: Yang, Jun
Publisher: name: arXiv
Year: 2020
Subjects: subject: Representation Theory (math.RT)
subject: Operator Algebras (math.OA)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics

description: We discuss the structure of the Motzkin algebra $M_k(D)$ by introducing a sequence of idempotents and the basic construction. We show that $\cup_{k\geq 1}M_k(D)$ admits a factor trace if and only if $D\in \{2\cos(π/n)+1|n\geq 3\}\cup [3,\infty)$ and higher commutants of these factors depend on $D$. Then a family of irreducible bimodules over the factors are constructed. A tensor category with $A_n$ fusion rule is obtained from these bimodules.
description: 47 pages
BAT AGN Spectroscopic Survey-III. An observed link between AGN Eddington ratio and narrow emission line ratios
Creators: name: Oh, Kyuseok
name: Schawinski, Kevin
name: Koss, Michael
name: Trakhtenbrot, Benny
name: Lamperti, Isabella
name: Ricci, Claudio
name: Mushotzky, Richard
name: Veilleux, Sylvain
name: Berney, Simon
name: Crenshaw, D. Michael
name: Gehrels, Neil
name: Harrison, Fiona
name: Masetti, Nicola
name: Soto, Kurt T.
name: Stern, Daniel
name: Treister, Ezequiel
name: Ueda, Yoshihiro
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We investigate the observed relationship between black hole mass ($M_{\rm BH}$), bolometric luminosity ($L_{\rm bol}$), and Eddington ratio ($λ_{\rm Edd}$) with optical emission line ratios ([NII] λ6583/Hα, [SII] λλ6716,6731/Hα, [OI] λ6300/Hα, [OIII] λ5007/Hβ, [NeIII] λ3869/Hβ, and HeII λ4686/Hβ) of hard X-ray-selected AGN from the BAT AGN Spectroscopic Survey (BASS). We show that the [NII] λ6583/Hα ratio exhibits a significant correlation with $λ_{\rm Edd}$ ($R_{\rm Pear}$ = -0.44, $p$-value=$3\times10^{-13}$, σ = 0.28 dex), and the correlation is not solely driven by $M_{\rm BH}$ or $L_{\rm bol}$. The observed correlation between [NII] λ6583/Hα ratio and $M_{\rm BH}$ is stronger than the correlation with $L_{\rm bol}$, but both are weaker than the $λ_{\rm Edd}$ correlation. This implies that the large-scale narrow lines of AGN host galaxies carry information about the accretion state of the AGN central engine. We propose that the [NII] λ6583/Hα is a useful indicator of Eddington ratio with 0.6 dex of rms scatter, and that it can be used to measure $λ_{\rm Edd}$ and thus $M_{\rm BH}$ from the measured $L_{\rm bol}$, even for high redshift obscured AGN. We briefly discuss possible physical mechanisms behind this correlation, such as the mass-metallicity relation, X-ray heating, and radiatively driven outflows.
description: Accepted for publication in MNRAS, 9 pages, 5 figures, 1 table
A singular Moser-Trudinger inequality for mean value zero functions in dimension two
Creators: name: Zhu, Xiaobao
Publisher: name: arXiv
Year: 2020
Subjects: subject: Analysis of PDEs (math.AP)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 35B33, 35J60

description: Let $Ω\subset\mathbb{R}^2$ be a smooth bounded domain with $0\in\partialΩ$. In this paper, we prove that for any $β\in(0,1)$, the supremum $$\sup_{u\in W^{1,2}(Ω), \int_Ωu dx=0, \int_Ω|\nabla u|^2dx\leq1}\int_Ω\frac{e^{2π(1-β) u^2}}{|x|^{2β}}dx$$ is finite and can be attained. This partially generalizes a well-known work of Alice Chang and Paul Yang (J. Differential Geom. 27 (1988), no. 2, 259-296) who have obtained the inequality when $β=0$.
description: 22 pages
Resilience of Energy Infrastructure and Services: Modeling, Data Analytics and Metrics
Creators: name: Ji, Chuanyi
name: Wei, Yun
name: Poor, H. Vincent
Publisher: name: arXiv
Year: 2016
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Large scale power failures induced by severe weather have become frequent and damaging in recent years, causing millions of people to be without electricity service for days. Although the power industry has been battling weather-induced failures for years, it is largely unknown how resilient the energy infrastructure and services really are to severe weather disruptions. What fundamental issues govern the resilience? Can advanced approaches such as modeling and data analytics help industry to go beyond empirical methods? This paper discusses the research to date and open issues related to these questions. The focus is on identifying fundamental challenges and advanced approaches for quantifying resilience. In particular, a first aspect of this problem is how to model large-scale failures, recoveries and impacts, involving the infrastructure, service providers, customers, and weather. A second aspect is how to identify generic vulnerability (i.e., non-resilience) in the infrastructure and services through large-scale data analytics. And, a third is to understand what resilience metrics are needed and how to develop them.
description: 12 pages, 6 figures, submitted and under review
Poles of finite-dimensional representations of Yangians
Creators: name: Gautam, Sachin
name: Wendlandt, Curtis
Publisher: name: arXiv
Year: 2020
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 17B37 (Primary) 81R10 (Secondary)

description: Let $\mathfrak{g}$ be a finite-dimensional simple Lie algebra over $\mathbb{C}$, and let $Y_{\hbar}(\mathfrak{g})$ be the Yangian of $\mathfrak{g}$. In this paper, we study the sets of poles of the rational currents defining the action of $Y_{\hbar}(\mathfrak{g})$ on an arbitrary finite-dimensional vector space $V$. Using a weak, rational version of Frenkel and Hernandez' Baxter polynomiality, we obtain a uniform description of these sets in terms of the Drinfeld polynomials encoding the composition factors of $V$ and the inverse of the $q$-Cartan matrix of $\mathfrak{g}$. We then apply this description to obtain a concrete set of sufficient conditions for the cyclicity and simplicity of the tensor product of any two irreducible representations, and to classify the finite-dimensional irreducible representations of the Yangian double.
description: 58 pages. Significantly revised version. Updates include: simpler proof of the main theorem (5.2) based a weaker version of Baxter polynomiality; relation with polynomial R-matrices of Hernandez-Zhang via shifted Yangians; relation with denominator formulae; and updated references to the literature
Understanding the Perception of Wine Consumers Using Free Word Association Technique
Creators: name: Fontana, Mauro
name: Pereira, Aline Machado
name: de Souza, Estefania Júlia Dierings
name: Ramos, Adriano Hirsch
name: Santos, Roberta Bascke
name: Ávila, Bianca Pio
name: Gularte, Marcia Arocha
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Neuroscience
subject: Science Policy
classificationCode: 111714
subject: Mental Health
subject: Hematology

description: The present study considers the perception of the wine consumer from the perspective of the method of word association and specifically examines what leads the research participants to consume wine. A total of 524 questionnaires were obtained from wine consumers All words and expressions mentioned were grouped into eight categories considering the similarity and cluster analysis. The categories were: attributes/characteristics, fraternization, food, culture, curiosity, innovation, health and feeling/pleasure. The motivations for wine consumption have changed, considering both nutritional purposes and for the pleasure of drinking. Most volunteers defined wine as a product that causes ‘well-being,’ ‘pleasure,’ ‘happiness,’ ‘tranquility,’ ‘comfort’ and ‘freedom’ categorized as ‘Feeling/Pleasure.’ The words present in the category “feeling/pleasure” are decisive in the choice of wine by the studied consumers and contribute to its acceptance and use in moments of conviviality.
Arabic Opinion Mining Using a Hybrid Recommender System Approach
Creators: name: Harrag, Fouzi
name: Al-Salman, Abdulmalik Salman
name: Alquahtani, Alaa
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Recommender systems nowadays are playing an important role in the delivery of services and information to users. Sentiment analysis (also known as opinion mining) is the process of determining the attitude of textual opinions, whether they are positive, negative or neutral. Data sparsity is representing a big issue for recommender systems because of the insufficiency of user rating or absence of data about users or items. This research proposed a hybrid approach combining sentiment analysis and recommender systems to tackle the problem of data sparsity problems by predicting the rating of products from users reviews using text mining and NLP techniques. This research focuses especially on Arabic reviews, where the model is evaluated using Opinion Corpus for Arabic (OCA) dataset. Our system was efficient, and it showed a good accuracy of nearly 85 percent in predicting rating from reviews
Effect of surface roughness on mass transfer onto rotating disc
Creators: name: Park, Young Woo.
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.
Mutually exclusive uncertainty relations
Creators: name: Xiao, Yunlong
name: Jing, Naihuan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The uncertainty principle is one of the characteristic properties of quantum theory based on incompatibility. Apart from the incompatible relation of quantum states, mutually exclusiveness is another remarkable phenomenon in the information-theoretic foundation of quantum theory. We investigate the role of mutual exclusive physical states in the recent work of stronger uncertainty relations for all incompatible observables by Mccone and Pati and generalize the weighted uncertainty relation to the product form as well as their multi-observable analogues. The new bounds capture both incompatibility and mutually exclusiveness, and are tighter compared with the existing bounds.
description: 9 pages, 4 figures
Symbolic analysis of second-order ordinary differential equations with polynomial coefficients
Creators: name: Birkandan, Tolga
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mathematical Physics (math-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The singularity structure of a second-order ordinary differential equation with polynomial coefficients often yields the type of solution. It is shown that the $θ$-operator method can be used as a symbolic computational approach to obtain the indicial equation and the recurrence relation. Consequently, the singularity structure leads to the transformations that yield a solution in terms of a special function, if the equation is suitable. Hypergeometric and Heun-type equations are mostly employed in physical applications. Thus only these equations and their confluent types are considered with SageMath routines which are assembled in the open-source package symODE2.
description: 16 pages, 2 figures. Matches the published version. The codes, a sample worksheet, and the user manual can be obtained from https://github.com/tbirkandan/symODE2
Accounting Practices of Small and Medium Sized Enterprises and its Effect on Access to Finance in Addis Ababa
Creators: name: Mosisa, Tafa
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2011

description: This study seeks to examine the accounting practice of small and medium sized enterprises and its effect on access to finance in Addis Ababa. It identifies the sector as the key to unlocking the economic potentials of the country. However, the sector is constrained by a number of factors which include among others minimum or poor accounting practice and difficulty in accessing credit facilities. For the achievement of the objective of the study quantitative research approach particularly survey design were used and the data obtained were analyzed using descriptive statistics and ordinary least square regression. The study revealed that the majority of the studied firm has no formal accounting practice. The study also revealed that the major sources of finance available for the establishment and expansion of SMEs in Addis Ababa are personal saving, microfinance, money from friends or relative, iqub and less from banks. The result of ordinary least square regression evidences that variables such as capital, manager education level and age of the firms are the significant determinants of firms' accounting practices whereas the problems significantly associated with access to bank credits are the demand for collateral, accounting practice or formal accounting information and age of the firm
A Testable Conspiracy: Simulating Baryonic Effects on Self-Interacting Dark Matter Halos
Creators: name: Elbert, Oliver D.
name: Bullock, James S.
name: Kaplinghat, Manoj
name: Garrison-Kimmel, Shea
name: Graus, Andrew S.
name: Rocha, Miguel
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We investigate the response of self-interacting dark matter (SIDM) halos to the growth of galaxy potentials using idealized simulations, each run in tandem with standard collisionless Cold Dark Matter (CDM). We find a greater diversity in the SIDM halo profiles compared to the CDM halo profiles. If the stellar gravitational potential strongly dominates in the central parts of a galaxy, then SIDM halos can be as dense as CDM halos on observable scales. For extreme cases with highly compact disks core collapse can occur, leading to SIDM halos that are denser and cuspier than their CDM counterparts. If the stellar potential is not dominant, then SIDM halos retain constant density cores with densities far below CDM predictions. When a disk potential is present, the inner SIDM halo becomes \em{more flattened} in the disk plane than the CDM halo. These results are in excellent quantitative agreement with the predictions of Kaplinghat et al. (2014). We also simulated a galaxy cluster halo with a central stellar distribution similar to the brightest central galaxy of the cluster A2667. A SIDM halo simulated with cross section over mass $σ/m = 0.1\ \mathrm{cm^2 g^{-1}}$ provides a good match to the measured dark matter density profile of A2667, while an adiabatically-contracted CDM halo is denser and cuspier. The cored profile of the same halo simulated with $σ/m = 0.5\ \mathrm{cm^2 g^{-1}}$ is not dense enough to match A2667. Our findings are in agreement with previous results that $σ/m \gtrsim 0.1\ \mathrm{cm^2 g^{-1}}$ is disfavored for dark matter collision velocities in excess of about 1500 km/s. More generally, the predictive cross-talk between baryonic potentials and SIDM density distributions offers new directions for constraining SIDM cross sections in massive galaxies where baryons are dynamically important.
description: 11 pages, 5 figures
Tight bounds on the maximal perimeter and the maximal width of convex small polygons
Creators: name: Bingane, Christian
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optimization and Control (math.OC)
subject: Combinatorics (math.CO)
subject: Metric Geometry (math.MG)
subject: FOS: Mathematics
subject: 52A40, 52A10, 52B55, 90C26

description: A small polygon is a polygon of unit diameter. The maximal perimeter and the maximal width of a convex small polygon with $n=2^s$ vertices are not known when $s \ge 4$. In this paper, we construct a family of convex small $n$-gons, $n=2^s$ and $s\ge 3$, and show that the perimeters and the widths obtained cannot be improved for large $n$ by more than $a/n^6$ and $b/n^4$ respectively, for certain positive constants $a$ and $b$. In addition, assuming that a conjecture of Mossinghoff is true, we formulate the maximal perimeter problem as a nonlinear optimization problem involving trigonometric functions and, for $n=2^s$ with $3 \le s\le 7$, we provide global optimal solutions.
Orthogonal polynomials and ladder networks
Creators: name: Billington, Jonathan.
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.
A reappraisal of tyrannosauroid fossils from the Iren Dabasu Formation (Coniacian–Campanian), Inner Mongolia, People’s Republic of China
Creators: name: Carr, Thomas D.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Cell Biology
subject: Evolutionary Biology
subject: FOS: Biological sciences
classificationCode: 59999
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: Sociology
subject: FOS: Sociology
classificationCode: 69999
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology

description: The hind limb of the lectotype of Alectrosaurus olseni is described in comparison with other tyrannosauroids. In addition to the autapomorphies described for Alectrosaurus by previous workers, the taxon possesses a specialized pes, where the distal condyles of the metatarsals and most phalanges are strongly elevated beyond the dorsal and ventral surfaces of the shaft of each bone, described here as the ‘pediculate’ condition. In comparison with the lectotype, previously reported Alectrosaurus and Tyrannosaurus bataar material from the Turonian of Uzbekistan, and fossils from the Kyzylkum Desert, are not referable to Alectrosaurus. A partial skull from the Iren Dabasu Formation is not referable to A. olseni because of the lack of shared diagnostic bones between it and the lectotype. Several features are shared between the skull, the holotype of Raptorex, and an isolated juvenile T. rex lacrimal, to the exclusion of other derived tyrannosauroids.
Anisotropic spin fluctuations in Sr$_2$RuO$_4$: role of spin-orbit coupling and induced strain
Creators: name: Cobo, Sergio
name: Ahn, Felix
name: Eremin, Ilya
name: Akbari, Alireza
Publisher: name: arXiv
Year: 2016
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We analyze the spin anisotropy of the magnetic susceptibility of Sr$_2$RuO$4$ in presence of spin-orbit coupling and anisotropic strain using quasi-two-dimensional tight-binding parametrization fitted to the ARPES results. Similar to the previous observations we find the in-plane polarization of the low ${\bf q}$ magnetic fluctuations and the out-of-plane polarization of the incommensurate magnetic fluctuation at the nesting wave vector ${\bf Q}_1 = (2/3 π,2/3 π)$ but also nearly isotropic fluctuations near ${\bf Q}_2=(π/6,π/6)$. Furthermore, one finds that apart from the high-symmetry direction of the tetragonal Brillouin zone the magnetic anisotropy is maximal, i.e. $χ^{xx} \neq χ^{yy} \neq χ^{zz}$. This is the consequence of the orbital anisotropy of the $xz$ and $yz$ orbitals in the momentum space. We also study how the magnetic anisotropy evolves in the presence of the strain and find strong Ising-like ferromagnetic fluctuations near the Lifshitz transition for the $xy$-band.
description: 6 pages, 4 figures
In-medium rho-meson properties in a light-front approach
Creators: name: de Melo, J. P. B. C.
name: Tsushima, K.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Properties of \r{ho}-meson in symmetric nuclear matter are investigated within a light-front constituent quark model (LFCQM), using the in-medium input calculated by the quark-meson coupling (QMC) model. The LFCQM used here was previously applied in vacuum to calculate the \r{ho}-meson electromagnetic properties, namely, charge G 0 , magnetic G 1 , and quadrupole G 2 form factors, as well as the electromagnetic radius and decay constant. We predict the in-medium modifications of the \r{ho}-meson electromagnetic form factors in symmetric nuclear matter.
description: 8 Pages, 6 eps figures. Proceedings of Light-Cone 2016, Lisbon Portugal
Inflation of Universe by Nonlinear Electrodynamics
Creators: name: Kruglov, S. I.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Nonlinear electrodynamics with two dimensional parameters is studied. The range of electromagnetic fields when principles of causality, unitarity and the classical stability hold, are obtained. A singularity of the electric field at the center of charges is absent within our model and there are corrections to the Coulomb law as $r\rightarrow\infty$. The universe inflation takes place in the background of stochastic magnetic fields. The second stage of the universe evolution is the radiation era so that the graceful exit exists. We estimated the spectral index, the tensor-to-scalar ratio, and the running of the spectral index that are in a rough accord with the PLANCK and WMAP data.
description: 20 pages, 6 figures, accepted in Int.J.Mod.Phys.D