cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Tight J-frames in Krein space and the associated J-frame potential
Creators: name: Hossein, Sk. Monowar
name: Karmakar, Shibashis
name: Paul, Kallol
Publisher: name: arXiv
Year: 2016
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 42C15, 46C05, 46C20

description: Motivated by the idea of $J$-frame for a Krein space $\textbf{\textit{K}}$, introduced by Giribet \textit{et al.} (J. I. Giribet, A. Maestripieri, F. Martínez Pería, P. G. Massey, \textit{On frames for Krein spaces}, J. Math. Anal. Appl. (1), {\bf 393} (2012), 122--137.), we introduce the notion of $ζ-J$-tight frame for a Krein space $\textbf{\textit{K}}$. In this paper we characterize $J$-orthonormal basis for $\textbf{\textit{K}}$ in terms of $ζ-J$-Parseval frame. We show that a Krein space is richly supplied with $ζ-J$-Parseval frames. We also provide a necessary and sufficient condition when the linear sum of two $ζ-J$-Parseval frames is again a $ζ-J$-Parseval frame. We then generalize the notion of $J$-frame potential in Krein space from Hilbert space frame theory. Finally we provided a necessary and sufficient condition for a $J$-frame potential of the corresponding $ζ-J$-tight frame to be minimum.
Observations of the Structure and Dynamics of the Inner M87 Jet
Creators: name: Walker, R. Craig
name: Hardee, Philip E.
name: Davies, Fred
name: Ly, Chun
name: Junor, William
name: Mertens, Florent
name: Lobanov, Andrei
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: M87 is the best source in which to study a jet at high resolution in gravitational units because it has a very high mass black hole and is nearby. The angular size of the black hole is second only to Sgr A*, which does not have a strong jet. The jet structure is edge brightened with a wide opening angle base and a weak counterjet. We have roughly annual observations for 17 years plus intensive monitoring at three week intervals for a year and five day intervals for 2.5 months made with the Very Long Baseline Array (VLBA) at 43 GHz. The inner jet shows very complex dynamics, with apparent motions both along and across the jet. Speeds from zero to over 2c are seen, with acceleration observed over the first 3 milli-arcseconds. The counterjet decreases in brightness much more rapidly than the main jet, as is expected from relativistic beaming in an accelerating jet oriented near the line-of-sight. Details of the structure and dynamics are discussed. The roughly annual observations show side-to-side motion of the whole jet with a characteristic time scale of about 9 years.
description: 11 pages, 7 figures. Published in a special issue of Galaxies which is the proceedings of "Blazars through Sharp Multi-Wavelength Eyes" edited by J. L. Gomez, A. P. Marscher, and S. G. Jorstad
The effect on road networks of urban growth strategies
Creators: name: McNamara, Raymond John.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
A combined spectroscopic and photometric stellar activity study of Epsilon Eridani
Creators: name: Giguere, Matthew J.
name: Fischer, Debra A.
name: Zhang, Cyril X. Y.
name: Matthews, Jaymie M.
name: Cameron, Chris
name: Henry, Gregory W.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present simultaneous ground-based radial velocity (RV) measurements and space-based photometric measurements of the young and active K dwarf Epsilon Eridani. These measurements provide a data set for exploring methods of identifying and ultimately distinguishing stellar photospheric velocities from Keplerian motion. We compare three methods we have used in exploring this data set: Dalmatian, an MCMC spot modeling code that fits photometric and RV measurements simultaneously; the FF$'$ method, which uses photometric measurements to predict the stellar activity signal in simultaneous RV measurements; and H$α$ analysis. We show that our H$α$ measurements are strongly correlated with photometry from the Microvariability and Oscillations of STars (MOST) instrument, which led to a promising new method based solely on the spectroscopic observations. This new method, which we refer to as the HH$'$ method, uses H$α$ measurements as input into the FF$'$ model. While the Dalmatian spot modeling analysis and the FF$'$ method with MOST space-based photometry are currently more robust, the HH$'$ method only makes use of one of the thousands of stellar lines in the visible spectrum. By leveraging additional spectral activity indicators, we believe the HH$'$ method may prove quite useful in disentangling stellar signals.
Ergodic statistical models: entropic dynamics and chaos
Creators: name: Gomez, Ignacio S.
name: Portesi, Mariela
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mathematical Physics (math-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We present an extension of the ergodic, mixing and Bernoulli levels of the ergodic hierarchy in dynamical systems, the information geometric ergodic hierarchy (IGEH), making use of statistical models on curved manifolds in the context of information geometry. We discuss the $2\times 2$ Gaussian Orthogonal Ensembles (GOE) within a $2D$ correlated model. For $r$ vanishingly small, we find that GOE belong to the information geometric (IG) mixing level having a maximum negative value of scalar curvature. Moreover, we propose a measure of distinguishability for the family of distributions of the $2D$ correlated model that results to be an upper bound of the IG correlation.
Betelgeuse Constraints on Coupling between Axion-like Particles and Electrons
Creators: name: Xiao, Mengjiao
name: Carenza, Pierluca
name: Giannotti, Maurizio
name: Mirizzi, Alessandro
name: Perez, Kerstin M.
name: Straniero, Oscar
name: Grefenstette, Brian W.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Axion-like particles (ALPs) can be produced by thermal processes in a stellar interior, escape from the star and, if sufficiently light, be converted into photons in the external Galactic magnetic field. Such a process could produce a detectable hard X-ray excess in the direction of the star. In this scenario, a promising class of targets is the red supergiants, massive stars which are experiencing the late part of their evolution. We report on a search for ALP-induced X-ray emission from Betelgeuse, produced via the combined processes of Bremsstrahlung, Compton and Primakoff. Using a 50 ks observation of Betelgeuse by the \emph{NuSTAR} satellite telescope, we set 95\% C.L. upper limits on the ALP-electron ($g_{ae}$) and ALP-photon ($g_{aγ}$) couplings. For masses ${m_{a}\leq(3.5-5.5)\times10^{-11}}$ eV, we find $g_{aγ} \times g_{ae}< (0.4-2.8)\times10^{-24}$ GeV$^{-1}$ (depending on the stellar model and assuming a value of the regular Galactic magnetic field in the direction transverse to Betelgeuse of $B_T$=1.4 $μ$G). This corresponds to ${g_{ae}<(0.4-2.8) \times10^{-12}}$ for ${g_{aγ}>1.0\times10^{-12}}$ GeV$^{-1}$. This analysis supercedes by over an order of magnitude the limit on $g_{ae} \times g_{aγ}$ placed by the CAST solar axion experiment and is among the strongest constraints on these couplings.
The Effects of Risk Management on Financial performance of Ethiopian Insurance Companies
Creators: name: Woldemichael, Zinaye
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: The study focuses on the investigation of the risk management factors that affect the financial performance of the Ethiopian insurance industry. Managing risks is an important factor which insurers must attend to achieve their financial performance. From this perspective, risk management becomes one of the most important practices to be used in insurers in order to get higher returns. Therefore, this study is attempted to ascertain the relationship between risk management and financial performance of insurers in Ethiopia. In order to achieve this objective, the study used explanatory research design, mixed research approach. Panel data covering eleven-years (2005–2015) are analyzed for nine insurers in Ethiopia. Also in-depth interview is conducted with the NBE officers. The results of the fixed effect regression model revealed that technical reserve and liquidity risks have negative & significant impact on ROA (proxy measure for financial performance) of non-life insurers in Ethiopia, whereas company size and reinsurance risk have positive & significant effect on ROA. The study led to the conclusion that technical reserve, size of a company, reinsurance risks and liquidity risk are the pull factors for the financial performance of insurers. On the basis of these findings, the study recommends that there is greater need for Ethiopia insurers to manage the risks particularly technical reserve risk, reinsurance risk and liquidity risk more integrally. The study also recommends Ethiopian insurers to increase their size by enhancing their assets base. Keywords: risk management, financial performance, insurance companies
How To Open Science: A Principle and Reproducibility Author Survey of the Artificial Intelligence in Education Conference
Creators: name: Haim, Aaron
name: Heffernan, Neil
name: Shaw, Stacy T.
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Analysis
subject: Computer Sciences
subject: Physical Sciences and Mathematics
subject: Communication
subject: Mathematics
subject: FOS: Mathematics
subject: Social and Behavioral Sciences
subject: Journalism Studies
subject: Reproducibility
subject: Open Science
subject: Survey
subject: Author
subject: Artificial Intelligence in Education
subject: Peer Review

description: A peer review with author input analyzing the open science principles and reproducibility of full papers, short papers, and posters sent to the 22nd and 23rd Artificial Intelligence in Education conference.
Determinants of Life Insurance Demand in Ethiopia
Creators: name: Yilma, Amrot
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2014

description: The study is intended to investigate the major determinants of life insurance demand in Ethiopia. The study focuses on the relationship of life insurance with six selected independent variables (income, inflation, real interest rate, level of education, life expectance and dependence ratio). The researcher used a time series data from 1983- 2012. The approach for this study is quantitative research approach. To find the major determinant factors for life insurance demand, the researcher adapted a log linear model. The adjusted R squared for the model is 0.9656 which indicates that about 96.56 percent of demand for life insurance is explained by the selected six factors. The t-statistics and p-value show that explanatory variables such as GDP per capita, inflation, real interest rate, level of education and life expectance are statistically significant at 10 percent significance level. GDP per capita, real interest rate, level of education and life expectance are positively related with life insurance demand whereas inflation is negatively related with life insurance demand. Dependence ratio does not have a statistically significant relationship with life insurance. GDP per capita is the most important factor that influences demand for life insurance followed by life expectance and level of Education. Inflation is the least important factor in influence demand for life insurance. Key words: Life insurance, log linear model, Ethiopia
Factorization of Ising correlations C(M,N) for $ ν= \, -k$ and M+N odd, $M \le N$, $T < T_c$ and their lambda extensions
Creators: name: Boukraa, S.
name: Cosgrove, C.
name: Maillard, J. -M.
name: McCoy, B. M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences
subject: 34M55, 47E05, 81Qxx, 32G34, 34Lxx, 34Mxx, 14Kxx

description: We study the factorizations of Ising low-temperature correlations C(M,N) for $ν=-k$ and M+N odd, $M \le N$, for both the cases $M\neq 0$ where there are two factors, and $M=0$ where there are four factors. We find that the two factors for $ M \neq 0$ satisfy the same non-linear differential equation and, similarly, for M=0 the four factors each satisfy Okamoto sigma-form of Painlevé VI equations with the same Okamoto parameters. Using a Landen transformation we show, for $M\neq 0$, that the previous non-linear differential equation can actually be reduced to an Okamoto sigma-form of Painlevé VI equation. For both the two and four factor case, we find that there is a one parameter family of boundary conditions on the Okamoto sigma-form of Painlevé VI equations which generalizes the factorization of the correlations C(M,N) to an additive decomposition of the corresponding sigma's solutions of the Okamoto sigma-form of Painlevé VI equation which we call lambda extensions. At a special value of the parameter, the lambda-extensions of the factors of C(M,N) reduce to homogeneous polynomials in the complete elliptic functions of the first and second kind. We also generalize some Tracy-Widom (Painlevé V) relations between the sum and difference of sigma's to this Painlevé VI framework.
description: 46 pages
Ordered Kinematic Endpoints for 5-body Cascade Decays
Creators: name: Klimek, Matthew D.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present expressions for the kinematic endpoints of 5-body cascade decay chains proceeding through all possible combinations of 2-body and 3-body decays, with one stable invisible particle in the final decay stage. When an invariant mass can be formed in multiple ways by choosing different final state particles from a common vertex, we introduce techniques for finding the sub-leading endpoints for all indistinguishable versions of the invariant mass. In contrast to short decay chains, where sub-leading endpoints are linearly related to the leading endpoints, we find that in 5-body decays, they provide additional independent constraints on the mass spectrum.
description: 26 pages, 3 figures, 4 tables
Smart Audit Application Engineering – Ein gestaltungsorientierter Ansatz zur Konzeption und Implementierung KI-basierter Informationssysteme in der Wirtschaftsprüfung
Creators: name: Remark, Florian
Publisher: name: Universität Osnabrück
Year: 2023
Subjects: subject: Wirtschaftsprüfung
subject: KI
subject: Künstliche Intelligenz
subject: Smart Auditing
subject: 330 - Wirtschaft
subject: 54.72 - Künstliche Intelligenz

description: Mit der vorliegenden Arbeit werden grundlegende Erkenntnisse über die Gestaltung KI-basierter Informationssysteme in der Wirtschaftsprüfung gewonnen. Es wird gezeigt, dass KI als Schlüsseltechnologie ein wichtiger technologischer Treiber für die Anwendungsdomäne der Wirtschaftsprüfung darstellt und dass die Entwicklung eigener KI-Systeme für Wirtschaftsprüfungsunternehmen aus Gründen der Effizienz- und Qualitätssteigerung sinnvoll sein kann. In insgesamt sechs Beiträgen wird durch unterschiedliche Anforderungserhebungen ein multiperspektivisches Bild darüber skizziert, welche Erfordernisse für die Gestaltung KI-basierter Informationssysteme in der Wirtschaftsprüfung relevant sind. Basierend auf den Erkenntnissen werden Werkzeuge wie bspw. Vorgehensmodelle zur Unterstützung der Gestaltung von KI-Systemen entwickelt. Durch die Umsetzung eines Softwareprototyps zur KI-basierten Anomalie-Detektion sowie der exemplarischen Anwendung des konzipierten Vorgehensmodells für KI-basierte Cross-Innovationen werden nicht nur wissenschaftliche Artefakte entwickelt, sondern gleichzeitig deren gelungener Praxistransfer demonstriert.
Linear programming in water resources engineering
Creators: name: Kesari, B. N.
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.
Antineutrino sensitivity at THEIA
Creators: name: Zsoldos, Stephane
name: Bagdasarian, Zara
name: Gann, Gabriel D. Orebi
name: Barna, Andrew
name: Dye, Stephen
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: Geophysics (physics.geo-ph)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We present the sensitivity of the Theia experiment to low-energy geo- and reactor antineutrinos. For this study, we consider one of the possible proposed designs, a 17.8-ktonne fiducial volume Theia-25 detector filled with water-based liquid scintillator placed at Sanford Underground Research Facility (SURF). We demonstrate Theia's sensitivity to measure the geo- and reactor antineutrinos via Inverse-Beta Decay interactions after one year of data taking with $11.9\times10^{32}$ free target protons. The expected number of detected geo- and reactor antineutrinos is $218\,^{+28}_{-20}$ and $170\,^{+24}_{-20}$, respectively. The precision of the fitting procedure has been evaluated to be 6.72% and 8.55% for geo- and reactor antineutrinos, respectively. We also demonstrate the sensitivity towards fitting individual Th and U contributions, with best fit values of $N_\text{Th}=39\,^{+18}_{-15}$ and $N_\text{U}=180\,^{+26}_{-22}$. We obtain $(\text{Th}/\text{U})=4.3\pm2.6$ after one year of data taking, and within ten years, the relative precision of the (Th/U) mass ratio will be reduced to 15%. Finally, from the fit results of individual Th and U contributions, we evaluate the mantle signal to be $S_\text{mantle} = 9.0\,\pm [4.2,4.5]$NIU. This was obtained assuming a full-range positive correlation ($ρ_c\in[0, 1]$) between Th and U, and the projected uncertainties on the crust contributions of 8.3% (Th) and 7.0% (U). When considering systematic uncertainties on the signal and background shape and fluxes, the mantle signal becomes $S_\text{mantle} = 9.3\,\pm [5.2,5.4]$NIU.
description: 15 pages, 10 figures, submitted to European Physical Journal C
DNA Pre-alignment Filter using Processing Near Racetrack Memory
Creators: name: Hameed, Fazal
name: Khan, Asif Ali
name: Ollivier, Sebastien
name: Jones, Alex K.
name: Castrillon, Jeronimo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Emerging Technologies (cs.ET)
subject: Hardware Architecture (cs.AR)
subject: FOS: Computer and information sciences

description: Recent DNA pre-alignment filter designs employ DRAM for storing the reference genome and its associated meta-data. However, DRAM incurs increasingly high energy consumption background and refresh energy as devices scale. To overcome this problem, this paper explores a design with racetrack memory (RTM)--an emerging non-volatile memory that promises higher storage density, faster access latency, and lower energy consumption. Multi-bit storage cells in RTM are inherently sequential and thus require data placement strategies to mitigate the performance and energy impacts of shifting during data accesses. We propose a near-memory pre-alignment filter with a novel data mapping and several shift reduction strategies designed explicitly for RTM. On a set of four input genomes from the 1000 Genome Project, our approach improves performance and energy efficiency by 68% and 52%, respectively, compared to the state of the art proposed DRAM-based architecture.
Determinants of tax Compliance Behavior of Large Corporate Taxpayers in Ethiopia
Creators: name: Kibret, Akalu
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2016

description: Taxation is one of the important elements in managing national income. However, as most of the developing countries Ethiopia was highly dependent on external financial resources to finance its development activities. The tax contribution to GDP remained consistently low and is relatively shrinking due to low tax compliance. The main objective of this study is to gain insight into the influence of some possible causes that affect the compliance behavior of large corporate tax payers in Ethiopia. What factors motivate them to comply or what factors discourage them not to comply with the income tax reporting requirements. The study allows policy makers to gain a better understanding of the factors and enable them to implement suitable strategies to minimize voluntary compliance problems so as to improve tax collections. Moreover, it may also serve as a basis for those who are interested to conduct further study on related topics. The data required for this research was collected from both primary and secondary sources. Primary data were collected directly from tax payers through researcher-administered questionnaire survey method and focus group (1 to 5) discussion. Secondary data collected from relevant legislation enacted in connection with the topic, tax journals, as well as published articles. In addition, the researcher also applied his personal knowledge he gained from working in ERCA.The results revealed that business size, business age and tax psychological cost consistently influence the likelihood of tax non-compliance behaviour in the areas of under-reporting income, over-claiming expenses and overall non-compliance. Nonetheless, business sector, tax complexity, fairness in the tax rate/ tax system and tax deterrence sanctions have an insignificant relationship with the non-compliance behaviour of corporate taxpayers. Tax liability, compliance cost and tax rate structure are significant determinants in at least one type of non-compliance behaviour
Surpassing the no-cloning limit with a heralded hybrid linear amplifier for coherent states
Creators: name: Haw, Jing Yan
name: Zhao, Jie
name: Dias, Josephine
name: Assad, Syed M.
name: Bradshaw, Mark
name: Blandino, Rémi
name: Symul, Thomas
name: Ralph, Timothy C.
name: Lam, Ping Koy
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The no-cloning theorem states that an unknown quantum state cannot be cloned exactly and deterministically due to the linearity of quantum mechanics. Associated with this theorem is the quantitative no-cloning limit that sets an upper bound to the quality of the generated clones. However, this limit can be circumvented by abandoning determinism and using probabilistic methods. Here, we report an experimental demonstration of probabilistic cloning of arbitrary coherent states that clearly surpasses the no-cloning limit. Our scheme is based on a hybrid linear amplifier that combines an ideal deterministic linear amplifier with a heralded measurement-based noiseless amplifier. We demonstrate the production of up to five clones with the fidelity of each clone clearly exceeding the corresponding no-cloning limit. Moreover, since successful cloning events are heralded, our scheme has the potential to be adopted in quantum repeater, teleportation and computing applications.
description: 10 pages, 5 figures, close to published version
Селекционно-производственные и организационно-зоотехнические мероприятия
Creators: name: Юшкова Л.Я.
name: Ким А.С.
Publisher: name: Эффективное животноводство
Year: 2023
Subjects: ветеринарная служба
селекция
генетика
племенное дело
veterinary service
breeding
genetics

description: Молочная продуктивность коров формируется под действием ряда факторов: генетических, разведенческих, кормленческих, организационно-хозяйственных, технологических и других.
description: Dairy productivity of cows is formed under the influence of a number of factors: genetic, breeding, feeding, organizational, technological and others.
The heat kernel for two Aharonov-Bohm solenoids in a uniform magnetic field
Creators: name: Stovicek, Pavel
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: A non-relativistic quantum model is considered with a point particle carrying a charge $e$ and moving on the plane pierced by two infinitesimally thin Aharonov-Bohm solenoids and subjected to a perpendicular uniform magnetic field of magnitude $B$. Relying on a technique due to Schulman and Sunada which is applicable to Schrödinger operators on multiply connected configuration manifolds a formula is derived for the corresponding heat kernel. As an application of the heat kernel formula, an approximate asymptotic expressions are derived for the lowest eigenvalue lying above the first Landau level and for the corresponding eigenfunction while assuming that $|eB|R^{2}/(\hbar c)$ is large where $R$ is the distance between the two solenoids.
Determinants of Profitability of Insurance Companies in Ethiopia: An empirical study
Creators: name: Gebru, Hadush
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2015

description: A company's profitability has always attracted the attention of academics, policy makers and practitioners, and researchers interested in revealing the main factors that determine business success or profitability. Although profitability has been widely investigated in industries like manufacturing industries far less attention has been paid to financial sector especially to insurance sector. This study examined the determinants of profitability (liquidity, tangibility, volume of capital, premium growth, claim ratio, real GDP and inflation) on general insurance companies of Ethiopia proxied by ROA. Profitability is dependent variable while liquidity, tangibility, volume of capital, premium growth, claim ratio, real GDP and inflation) are independent variables. In this paper, econometric analyses have performed for a panel of nine Ethiopian general insurance companies for the study period of 2005-2014. The study has used secondary data or quantitative nature of data obtained from the annual audited financial statements (balance sheet and profit/loss account, and revenue account) of insurance companies, financial publications of NBE by applying a statistical package data called EVies 7 only. Since, the study data was panel data or the combination of cross-sectional and time-series data and concurrently random-effect panel data regression was applied to study the effect of those selected independent variables on profitability (ROA). The random effect regression result shows that tangibility, volume of capital, premium growth, claim ratio, and real GDP are identified as most important determinants of profitability hence tangibility, volume of capital, premium growth are significant and positively related. In contrast, claim ratio and real GDP are negatively but significantly related with profitability. However, liquidity and inflation are not significantly related with profitability. The result implies that, company with high asset, capital, volume of premium, and with low claim incurred has more profit than the company with low asset (fixed asset), capital, premium growth, and high claim incurred. Hence, insurers should have to raise their asset (fixed asset), capital, and volume of gross premium; while, insurers must decrease their claim incurred in line with the rules and limits of the National Bank of Ethiopia in order to earn more profit. Key Words: Insurance Companies, Determinants, Profitability
Emergent fuzzy geometry and fuzzy physics in $4$ dimensions
Creators: name: Ydri, Badis
name: Ahlam, Rouag
name: Khaled, Ramda
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: A detailed Monte Carlo calculation of the phase diagram of bosonic IKKT Yang-Mills matrix models in three and six dimensions with quartic mass deformations is given. Background emergent fuzzy geometries in two and four dimensions are observed with a fluctuation given by a noncommutative $U(1)$ gauge theory very weakly coupled to normal scalar fields. The geometry, which is determined dynamically, is given by the fuzzy spheres ${\bf S}^2_N$ and ${\bf S}^2_N\times{\bf S}^2_N$ respectively. The three and six matrix models are in the same universality class with some differences. For example, in two dimensions the geometry is completely stable, whereas in four dimensions the geometry is stable only in the limit $M\longrightarrow \infty$, where $M$ is the mass of the normal fluctuations. The behavior of the eigenvalue distribution in the two theories is also different. We also sketch how we can obtain a stable fuzzy four-sphere ${\bf S}^2_N\times{\bf S}^2_N$ in the large $N$ limit for all values of $M$ as well as models of topology change in which the transition between spheres of different dimensions is observed. The stable fuzzy spheres in two and four dimensions act precisely as regulators which is the original goal of fuzzy geometry and fuzzy physics. Fuzzy physics and fuzzy field theory on these spaces are briefly discussed.
description: 45 pages, 18 figures; v2: very minor corrections
MPEC 2023-S97 : 2023 SP1
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 SP1

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Shrinkage stresses in adhesive joints
Creators: name: Hang, Pham Thi Thu.
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.
How To Open Science: A Principle Author Survey and Reproducibility Development of the Educational Data Mining Conference
Creators: name: Shaw, Stacy T.
name: Haim, Aaron
name: Heffernan, Neil
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Communication
subject: Computer Sciences
subject: Physical Sciences and Mathematics
subject: Mathematics
subject: FOS: Mathematics
subject: Journalism Studies
subject: Analysis
subject: Social and Behavioral Sciences
subject: Reproducibility
subject: Survey
subject: Author
subject: Educational Data Mining
subject: Peer Review
subject: Open Science
subject: Metrics

description: A peer review with author input analyzing the open science principles and developing reproducibility metrics of full papers, short papers, and posters sent to the 14th and 15th Educational Data Mining conference.
Surface Velocimetry Training Resources for Fiji
Creators: name: Biggs, Hamish
name: Baddock, Evan
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 370704
subject: Surface water hydrology

description: These online resources include:Training Data.Presentations.Reports.SVR gauging field form and SOP.Discharge Calculator - For Surface Velocity Radar (SVR).Other authors such as Alex Hauet, Jerome Le Coz, and Mark Randall have also published excellent training videos, presentations, and advice documents. These resources could not be publicly redistributed here, but can be found through online searches. The user manuals for software such as Fudaa-LSPIV and Hydro-STIV also provide useful resources of information for training.The provided discharge calculator is designed for cross section surveys between two fixed reference pegs (true left bank and true right bank) that are above the maximum high water mark. Surveys are intended to be conducted with a dumpy level, survey staff, and tagline, since these are the commonly available resources in Fiji. SVR cross stream distances are then referenced to the true left bank peg.
Surface Velocimetry Training Resources for Fiji
Creators: name: Biggs, Hamish
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 370704
subject: Surface water hydrology

description: These online resources include:Training Data.Presentations.Reports.SVR gauging field form and SOP.Discharge Calculator - For Surface Velocity Radar (SVR).Other authors such as Alex Hauet, Jerome Le Coz, and Mark Randall have also published excellent training videos, presentations, and advice documents. These resources could not be publicly redistributed here, but can be found through online searches. The user manuals for software such as Fudaa-LSPIV and Hydro-STIV also provide useful resources of information for training.The provided discharge calculator is designed for cross section surveys between two fixed reference pegs (true left bank and true right bank) that are above the maximum high water mark. Surveys are intended to be conducted with a dumpy level, survey staff, and tagline, since these are the commonly available resources in Fiji. SVR cross stream distances are then referenced to the true left bank peg.
Learning Likely Invariants to Explain Why a Program Fails
Creators: name: Sun, Jun
name: Pham, Long H.
name: Thi, Lyly Tran
name: Wang, Jingyi
name: Peng, Xin
Publisher: name: arXiv
Year: 2016
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Debugging is difficult. Recent studies show that automatic bug localization techniques have limited usefulness. One of the reasons is that programmers typically have to understand why the program fails before fixing it. In this work, we aim to help programmers understand a bug by automatically generating likely invariants which are violated in the failed tests. Given a program with an initial assertion and at least one test case failing the assertion, we first generate random test cases, identify potential bug locations through bug localization, and then generate program state mutation based on active learning techniques to identify a predicate "explaining" the cause of the bug. The predicate is a classifier for the passed test cases and failed test cases. Our main contribution is the application of invariant learning for bug explanation, as well as a novel approach to overcome the problem of lack of test cases in practice. We apply our method to real-world bugs and show the generated invariants are often correlated to the actual bug fixes.
description: 10 pages
$η_c$ production associated with light hadrons at the B-factories and the future super B-factories
Creators: name: Gong, Qin-Rong
name: Sun, Zhan
name: Zhang, Hong-Fei
name: Mo, Xue-Mei
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a complete study of the associated production of the $η_c$ meson with light hadrons in $e^+e^-$ collisions at the B-factory energy, which is demonstrated to be one of the best laboratories for testing the colour-octet (CO) mechanism. The colour-siglet contributions are evaluated up to $O(α^2α_s^3)$ while the CO ones are evaluated up to $O(α^2α_s^2)$. For the first time, the angular distribution of the $^1S_0^{[8]}$ production is studied at QCD next-to-leading order. We find that the $^1S_0^{[8]}$ channel dominate the total cross section, while the $^1P_1^{[8]}$ one exhibit its importance in the angular distribution, which turns out to be downward going with respect to $\mathrm{cos}θ$. This can be considered as the most distinct signal for the CO mechanism.
Assessment of knowledge and practice on safe handling of cytotoxic drugs among nurses working in oncology unit at governmental hospitals Addis Ababa, Ethiopia 2019.
Creators: name: Asefa, Selamawit
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019

description: Introduction: Occupational exposure to cytotoxic drugs is a worldwide concern and the number of staff possibly exposed to hazardous effect of the cytotoxic drug was more than 5.5 million. Unsafe handling practices have been pointed out in several studies, particularly in countries where access and use of these medicines have recently risen. Objective: To assess knowledge and practice on safe handling of cytotoxic drugs among nurses working in oncology unit at governmental hospitals Addis Ababa, Ethiopia 2019. Method: An institutional based cross-sectional study was conducted on 77 nurses in two selected governmental hospitals Addis Ababa Ethiopia from April 1-30, 2019. Censuses approach was used to select nurses. Structured self-administered questionnaire was used to collect data. Descriptive statistics such as mean, standard deviation and percentage were calculated to describe frequency and displayed in tables. Multiple Linear regression was done to see the association between dependent variables and independent variables. Significant factors were identified based on include in 95% level at p-value less than 0.05. Result: Mean score of knowledge of nurses about cytotoxic drug was7.82±2.22 and mean score practice of nurse 22.1±5.5 multiple regression analysis indicated that chemotherapy training was significantly associated with nurse's knowledge (p = 0.01) and practice of nurses handling cytotoxic drug (p=.048) respectively. Working ward and experience were significant associated with knowledge of nurses on handling cytotoxic drug. Conclusion and Recommendation: Most of nurses didn't take training about chemotherapy handling. This study finding showed that chemotherapy training was significantly associated with knowledge and practice. In service training regarding chemotherapy handling should be given to nurse's and oncology course should be incorporated and reinforced in to nursing professions curriculums.
Degree-restricted strength decompositions and algebraic branching programs
Creators: name: Gesmundo, Fulvio
name: Ghosal, Purnata
name: Ikenmeyer, Christian
name: Lysikov, Vladimir
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computational Complexity (cs.CC)
subject: Algebraic Geometry (math.AG)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: F.1.3
subject: 15A69, 14N07, 68Q17

description: We analyze Kumar's recent quadratic algebraic branching program size lower bound proof method (CCC 2017) for the power sum polynomial. We present a refinement of this method that gives better bounds in some cases. The lower bound relies on Noether-Lefschetz type conditions on the hypersurface defined by the homogeneous polynomial. In the explicit example that we provide, the lower bound is proved resorting to classical intersection theory. Furthermore, we use similar methods to improve the known lower bound methods for slice rank of polynomials. We consider a sequence of polynomials that have been studied before by Shioda and show that for these polynomials the improved lower bound matches the known upper bound.
description: 14 pages
A Petrov-Galerkin Spectral Element Method for Fractional Elliptic Problems
Creators: name: Kharazmi, Ehsan
name: Zayernouri, Mohsen
name: Karniadakis, George Em
Publisher: name: arXiv
Year: 2016
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: We develop a new $C^{\,0}$-continuous Petrov-Galerkin spectral element method for one-dimensional fractional elliptic problems of the form ${}_{0}{\mathcal{D}}_{x}^α u(x) - λu(x) = f(x)$, $α\in (1,2]$, subject to homogeneous boundary conditions. We employ the standard (modal) spectral element bases and the Jacobi poly-fractonomials as the test functions [1]. We formulate a new procedure for assembling the global linear system from elemental (local) mass and stiffness matrices. The Petrov-Galerkin formulation requires performing elemental (local) construction of mass and stiffness matrices in the standard domain only once. Moreover, we efficiently obtain the non-local (history) stiffness matrices, in which the non-locality is presented analytically for uniform grids. We also investigate two distinct choices of basis/test functions: i) local basis/test functions, and ii) local basis with global test functions. We show that the former choice leads to a better-conditioned system and accuracy. We consider smooth and singular solutions, where the singularity can occur at boundary points as well as in the interior domain. We also construct two non-uniform grids over the whole computational domain in order to capture singular solutions. Finally, we perform a systematic numerical study of non-local effects via full and partial history fading in order to further enhance the efficiency of the scheme.
description: 40 pages, 15 figures, 7 Tables
High resolution VLBI polarisation imaging of AGN with the Maximum Entropy Method
Creators: name: Coughlan, Colm P.
name: Gabuzda, Denise C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Radio polarisation images of the jets of Active Galactic Nuclei (AGN) can provide a deep insight into the launching and collimation mechanisms of relativistic jets. However, even at VLBI scales, resolution is often a limiting factor in the conclusions that can be drawn from observations. The Maximum Entropy Method (MEM) is a deconvolution algorithm that can outperform the more common CLEAN algorithm in many cases, particularly when investigating structures present on scales comparable to or smaller than the nominal beam size with "super-resolution". A new implementation of the MEM suitable for single- or multiple-wavelength VLBI polarisation observations has been developed and is described here. Monte Carlo simulations comparing the performances of CLEAN and MEM at reconstructing the properties of model images are presented; these demonstrate the enhanced reliability of MEM over CLEAN when images of the fractional polarisation and polarisation angle are constructed using convolving beams that are appreciably smaller than the full CLEAN beam. The results of using this new MEM software to image VLBA observations of the AGN 0716+714 at six different wavelengths are presented, and compared to corresponding maps obtained with CLEAN. MEM and CLEAN maps of Stokes $I$, the polarised flux, the fractional polarisation and the polarisation angle are compared for convolving beams ranging from the full CLEAN beam down to a beam one-third of this size. MEM's ability to provide more trustworthy polarisation imaging than a standard CLEAN-based deconvolution when convolving beams appreciably smaller than the full CLEAN beam are used is discussed.
description: 24 pages, 14 figures, accepted for publication in MNRAS
MPEC 2023-S98 : 2023 SQ1
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 SQ1

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Accurate Energy and Performance Prediction for Frequency-Scaled GPU Kernels
Creators: name: Fan, Kaijie
name: Cosenza, Biagio
name: Juurlink, Ben
Publisher: name: Technische Universität Berlin
Year: 2020
Subjects: subject: 004 Datenverarbeitung; Informatik
subject: frequency scaling
subject: energy efficiency
subject: GPU
subject: modeling

description: Energy optimization is an increasingly important aspect of today’s high-performance computing applications. In particular, dynamic voltage and frequency scaling (DVFS) has become a widely adopted solution to balance performance and energy consumption, and hardware vendors provide management libraries that allow the programmer to change both memory and core frequencies manually to minimize energy consumption while maximizing performance. This article focuses on modeling the energy consumption and speedup of GPU applications while using different frequency configurations. The task is not straightforward, because of the large set of possible and uniformly distributed configurations and because of the multi-objective nature of the problem, which minimizes energy consumption and maximizes performance. This article proposes a machine learning-based method to predict the best core and memory frequency configurations on GPUs for an input OpenCL kernel. The method is based on two models for speedup and normalized energy predictions over the default frequency configuration. Those are later combined into a multi-objective approach that predicts a Pareto-set of frequency configurations. Results show that our approach is very accurate at predicting extema and the Pareto set, and finds frequency configurations that dominate the default configuration in either energy or performance.
Bayesian estimation of correlation functions
Creators: name: Gutierrez-Rubio, Angel
name: Rojas-Arias, Juan S.
name: Yoneda, Jun
name: Tarucha, Seigo
name: Loss, Daniel
name: Stano, Peter
Publisher: name: arXiv
Year: 2022
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We apply Bayesian statistics to the estimation of correlation functions. We give the probability distributions of auto- and cross-correlations as functions of the data. Our procedure uses the measured data optimally and informs about the certainty level of the estimation. Our results apply to general stationary processes and their essence is a non-parametric estimation of spectra. It allows one to better understand the statistical noise fluctuations, assess the correlations between two variables, and postulate parametric models of spectra that can be further tested. We also propose a method to numerically generate correlated noise with a given spectrum.
description: See (v1) for the original Angel's version and the article's history background. Changes: different priors for zero frequency; Fig. 5 redrawn; Section VI renamed and extended; App. B extended by non-factorizable priors; Added Apps. D, E, F, G, and H, and 9 references; Style and format changes throughout. Many of these changes reflect a year of experience in applying the theory to real-world data
Green Solutions for Overcoming the Challenges Associated With the Green Economy in Bangladesh
Creators: name: Rahman, Md Mizanur
Publisher: name: figshare
Year: 2023
Subjects: Ecological economics

description: A green economy results in improved human well-being and social equity, while significantly reducing environmental risks and ecological scarcities. A green economy can provide growth-positive, employment-positive, and poverty-negative in Bangladesh. The study aims to identify the bottlenecks associated with the green economy in Bangladesh and find out green solutions. It was revealed that the 'grow first, clean up later' concept degrades the environment. Climate change and diminishing natural resources created an extra threat to sustainability. Toxic agriculture and the monoculture of rice impacted agrobiodiversity and generated many health hazards. Food adulteration has become a custom and tradition in the country, which is toxic, regardless of the method of intake. Some green solutions like green energy, green agriculture, green job, green transportation, green waste management, 3R, go green, biodiversity conservation, ecotourism, green investment and food security are recommended to overcome the challenges.