cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
An acoustic investigation of traces to children’s early omitted English articles: a case study
Creators: name: Alkhudidi, Anwar
Publisher: name: Macquarie University
Year: 2022
Subjects: Other education not elsewhere classified

description: Young children are more likely to omit unstressed function words when they do not form a disyllabic foot with the previous word e.g., Tom [pushes]Foot the dog than when they form a disyllabic foot with the previous word e.g., Tom [pushed the]Foot dog (e.g., Gerken, 1991, 1994; Demuth & McCullough, 2009). However, previous research indicates that when children appear to omit weak syllables in content words, they leave imperceptible prosodic traces to the omitted syllables (Carter & Gerken, 2004) suggesting that the omission of unstressed syllables in content words is incomplete. However, it is not clear whether children also leave traces to the other type of unstressed syllables i.e, function words. This thesis, therefore, explored whether there is an acoustic trace to children’s omitted function words, namely English articles. To this end, a longitudinal speech corpus of one English-speaking child between 1;5 to 1;9 (years; months) (Demuth et al., 2006) was screened for three types of utterances in which articles were 1) produced e.g., find the dog; 2) omitted from obligatory context e.g., find dog; or 3) not required (control) e.g., find dogs. From these utterances, three durations were measured that could be indicative of a trace and compared across the utterance types using regression analyses. Results show no evidence of an acoustic trace to omitted articles which may imply that children delete the entire syllable instead of leaving a prosodic trace. A discussion of the implications of this finding was provided for phonological/ prosodic accounts of unstressed syllable omission and for speech production processes in general.
The 2nd Generation VLTI path to performance
Creators: name: Woillez, Julien
name: Alonso, Jaime
name: Berger, Jean-Philippe
name: Bonnet, Henri
name: de Wit, Willem-Jan
name: Egner, Sebastian
name: Eisenhauer, Frank
name: Gonté, Frédéric
name: Guieu, Sylvain
name: Haguenauer, Pierre
name: Mérand, Antoine
name: Pettazzi, Lorenzo
name: Poupar, Sébastien
name: Schöller, Markus
name: Schuhler, Nicolas
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The upgrade of the VLTI infrastructure for the 2nd generation instruments is now complete with the transformation of the laboratory, and installation of star separators on both the 1.8-m Auxiliary Telescopes (ATs) and the 8-m Unit Telescopes (UTs). The Gravity fringe tracker has had a full semester of commissioning on the ATs, and a first look at the UTs. The CIAO infrared wavefront sensor is about to demonstrate its performance relative to the visible wavefront sensor MACAO. First astrometric measurements on the ATs and astrometric qualification of the UTs are on-going. Now is a good time to revisit the performance roadmap for VLTI that was initiated in 2014, which aimed at coherently driving the developments of the interferometer, and especially its performance, in support to the new generation of instruments: Gravity and MATISSE.
description: 9 pages, 6 figures, 1 table, Proc. SPIE 2016
An analysis of motion of a moored instrument platform
Creators: name: Lord, J. 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.
Determinants of Non-Interest Income in Ethiopian Commercial Banks
Creators: name: Yilma, Estifanos
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2014

description: This study focused on the determinants of non-interest income in the case of Ethiopian commercial banks. The trend of non-interest income of commercial banks in Ethiopia is varying from time to time. The data for this study were collected from financial statements of the sample commercial banks and annual reports of National Bank of Ethiopian, Minstry of Finance and Economic Development (MoFED) and Central Statistics Agency (CSA). Eight commercial banks were used as the sample for this study which was established before 2003 G.C. After the data collected, it was analyzed using multiple linear regression and ordinary least square estimation method. The finding of the study is that bank relative performance and loan quality from bank-specific factors and exchange rate volatility from macro-economic factors are the most influential factors on non-interest income of Ethiopian commercial banks. The researcher recommends that, banks should keep their efficiency up, participate on different innovative, marketing and focusing on foreign exchange trade so as to enhance their level of non-interest income
Anxieties of Being Indian, Tamil and Muslim: Politics of Secularism in the anti-CAA protests
Creators: name: Abdul Azeez, Ashir Mohamed
Publisher: name: University of Chicago
Year: 2022
Subjects: subject: Muslim
subject: Indian
subject: Tamil
subject: Hindu nationalism
subject: Cannibalization of Muslim visibility
subject: Linguistic anthropology
subject: Body-politic
subject: secularism

description: In this paper, I look at how Muslims in Tamil Nadu asserted both Indian and Tamil identity in their struggle against a discriminatory law called Citizenship Amendment Act, which was passed in Indian parliament in 2022. By engaging in a discourse analysis of a political oratory in a protest in Chennai, this paper explicates the way in which these identities are asserted and arrayed against the law, suffused with the anxieties and hopes of Muslim minorities. This paper also analyzes why do Muslims disavow from asserting their Muslimness as a political identity even when they are continued to be oppressed because of that identity. By analyzing it, this paper argues that Hindu nationalism nourishes itself by what I call as Cannibalization of Muslim visibility, a phenomenon which animates not only the Hindu majoritarianism of Right, but also the secular - liberal discourses of the center and the left.
The Cosmic Baryon Cycle and Galaxy Mass Assembly in the FIRE Simulations
Creators: name: Anglés-Alcázar, Daniel
name: Faucher-Giguère, Claude-André
name: Kereš, Dušan
name: Hopkins, Philip F.
name: Quataert, Eliot
name: Murray, Norman
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We use cosmological simulations from the FIRE (Feedback In Realistic Environments) project to study the baryon cycle and galaxy mass assembly for central galaxies in the halo mass range $M_{\rm halo} \sim 10^{10} - 10^{13} M_{\odot}$. By tracing cosmic inflows, galactic outflows, gas recycling, and merger histories, we quantify the contribution of physically distinct sources of material to galaxy growth. We show that in situ star formation fueled by fresh accretion dominates the early growth of galaxies of all masses, while the re-accretion of gas previously ejected in galactic winds often dominates the gas supply for a large portion of every galaxy's evolution. Externally processed material contributes increasingly to the growth of central galaxies at lower redshifts. This includes stars formed ex situ and gas delivered by mergers, as well as smooth intergalactic transfer of gas from other galaxies, an important but previously under-appreciated growth mode. By $z=0$, wind transfer, i.e. the exchange of gas between galaxies via winds, can dominate gas accretion onto $\sim L^{*}$ galaxies over fresh accretion and standard wind recycling. Galaxies of all masses re-accrete >50% of the gas ejected in winds and recurrent recycling is common. The total mass deposited in the intergalactic medium per unit stellar mass formed increases in lower mass galaxies. Re-accretion of wind ejecta occurs over a broad range of timescales, with median recycling times ($\sim 100-350$ Myr) shorter than previously found. Wind recycling typically occurs at the scale radius of the halo, independent of halo mass and redshift, suggesting a characteristic recycling zone around galaxies that scales with the size of the inner halo and the galaxy's stellar component.
description: 22 pages, 17 figures, Submitted to MNRAS
Credit Default Risk and its Determinants of Microfinance Industry in Ethiopia
Creators: name: Setargie, Samuel
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2011

description: Despite the current enthusiasms in applying the concept of microfinance as a poverty alleviation tool in many countries, the risk management aspects of micro-financing should not be overlooked. This paper highlights several incidences of default risks in microfinance industry. The problem identified was that microfinance programs perform scantily because of delay in repayment and high default rates. Hence, it was important to establish if these limitations prevailed in the selected 6 MFIs in Ethiopia schemed by determining the default rate and the grounds of the observed trends. Therefore, in order to address those issues, the researcher used primary data collected through structured questionnaire and referred secondary sources of data. As a result, the collected data and information were compiled and analyzed for possible indications of problem areas. So, the outcomes revealed that the MFIs default rate increased over the review period and averaged 27.1 per cent as well. The core factors of default were found to be poor business performance, in terms of low profitability or business losses. Besides, credit diversion to unprofitable uses, domestic problems, numerous dependents, and tenancy problems were other factors that caused credit default. Further, the inference results of the descriptive statistics and the probit model show that education, income, loan supervision, suitability of repayment period and availability of other credit sources are important and significant factors that enhance the credit repayment performance, while credit diversion and credit/loan size are found to significantly increase credit default. There were serious problems observed in the screening mechanism the institutions employed, i.e. borrowers who are good payers like literate were rationed more, while those who contribute to the default problem like male and who apply for larger loan amounts were rationed less. So, the lending institutions are particularly recommended to improve these problems observed in its rationing mechanism. Moreover, the processes should be worked out to identify borrower capacity and any obligations that may interfere with repayment. Finally, the selected MFIs should intensify recovery of outstanding balances from defaulters through increased borrower follow-up. Key Words: MFIs, credit default, credit diversion, loan rationing, impact, creditworthy
A Triple Protostar System Formed via Fragmentation of a Gravitationally Unstable Disk
Creators: name: Tobin, John
name: Kratter, Kaitlin
name: Persson, Magnus
name: Looney, Leslie
name: Dunham, Michael
name: Segura-Cox, Dominique
name: Li, Zhi-Yun
name: Chandler, Claire
name: Sadavoy, Sarah
name: Harris, Robert
name: Melis, Carl
name: Perez, Laura
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Binary and multiple star systems are a frequent outcome of the star formation process, and as a result, almost half of all sun-like stars have at least one companion star. Theoretical studies indicate that there are two main pathways that can operate concurrently to form binary/multiple star systems: large scale fragmentation of turbulent gas cores and filaments or smaller scale fragmentation of a massive protostellar disk due to gravitational instability. Observational evidence for turbulent fragmentation on scales of $>$1000~AU has recently emerged. Previous evidence for disk fragmentation was limited to inferences based on the separations of more-evolved pre-main sequence and protostellar multiple systems. The triple protostar system L1448 IRS3B is an ideal candidate to search for evidence of disk fragmentation. L1448 IRS3B is in an early phase of the star formation process, likely less than 150,000 years in age, and all protostars in the system are separated by $
description: Published in Nature on Oct. 27th. 24 pages, 8 figures
Quantum fluctuation in rotation velocity of a levitated magnetic particle
Creators: name: Sato, T.
name: Oue, Daigo
name: Matsuo, M.
name: Kato, T.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We consider a ferromagnetic particle levitated in air under microwave irradiation and theoretically study the noise in its rigid-body rotation induced by the gyromagnetic effect. This rotational noise includes useful information on angular momentum transfer from the magnetization to the rigid-body rotation, such as the unit of angular momentum per one spin relaxation process. We formulate the rotational noise in terms of the Lindblad equation, which describes the quantum stochastic process, and estimate it in the case of realistic experimental parameters. We show that a bifurcation phenomenon observed in our setup amplifies the noise and, therefore, can be exploited making an accurate measurement of the rotational noise.
description: 11 pages, 4 figures
Effects of Reducing Scaffolding in an Undergraduate Electronics Lab
Creators: name: Halstead, Evan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: Design and scientific investigation are recognized as key components of undergraduate physics laboratory curricula. In light of this, many successful lab programs have been developed to train students to develop these abilities, and students in these programs have been shown to exhibit a higher transfer rate of scientific abilities to new situations. In this paper, I use data from an electronics class for physics majors to investigate how giving students the opportunity to design circuits --- by removing steps from traditional cookbook lab guides --- affects the students' ability to determine the function of circuits they haven't seen before. I compared post-lab quiz results from students who were given explicit procedures to those of students who were given incomplete procedures, and I found no statistically significant difference in the results of the two groups. I explore possible explanations for the null effect and recommend future research directions.
description: 15 pages, 5 figures
2D Zak Phase Landscape in Photonic Discrete-Time Quantum Walks
Creators: name: Puentes, Graciana
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a study of the 2D Zak phase landscape in photonic discrete-time quantum walk (DTQW) protocols. In particular, we report numerical results for three different DTQW scenarios which preserve spatial inversion symmetry (SIS) and time-reversal symmetry (TRS), while presenting a non-trivial Zak phase structure, as a consequence of a non-vanishing Berry connection. Additionally, we propose a novel approach to break TRS in photonic systems, while preserving a vanishing Berry curvature. Our results bear a close analogy to the Aharonov-Bohm effect, stating that in a field-free multiply connected region of space the evolution of the system depends on vector potentials, due to the fact that the underlying canonical formalism cannot be expressed in terms of fields alone.
description: 10 pages, 7 figures
Access to Finance and its Challenge for Small Business Enterprises Case of Addis Ababa City Study Conducted in partial Fulfilment of the MSc in Accounting and Finance
Creators: name: Zeru, Fetene
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2010

description: Small-scale enterprises have become an important contributor to Ethiopia's economy. The sector contributes to the national objective of creating employment opportunities, training entrepreneurs, generating income and providing a source of livelihood for the majority of low- income households in the country, accounting for material amount of GDP (Eshetu and Mammo, 2009). Improving access to finance for small business is an important devilment tool, because it helps these business sectors, in addition to strengthening the forward and backward integration to and from different sectors, to create employment for the unemployed and increases their income and consumption. The purpose of this paper was to bring to light one of the major prerequisites, namely access to finance aspects, of the small scale enterprises which are foundation in accelerating economic growth. The main objective of the paper is to identify the challenges that small businesses in Addis Ababa (selected sub cities) face in accessing finance from financial institution through identifying the dominant means of financing small businesses and factors influence the extent of accessing finance. The study was conducted by taking into account the demand side aspect. The most pressing problem identified, from response of small businesses and from responsible officers interviewed, was accessing fund to finance working capital and in fixed investment. The basic factors aggravated the problem for small business are loan covenants need by financial institution, lack of collateral, level of cost of financing and availability of other financing instruments. In addition; as it was confirmed from the research, luck of credit history with the financial institutions, willingness of banks and suppliers to provide credit and the firm's specific outlook about sales and profitability have contributed to the problem. Key words: Access to finance, Small business enterprises
Empirical analysis of a pulse-controlled hydraulic motor
Creators: name: Higgins, Peter Gerard.
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.
Strong lensing signatures of luminous structure and substructure in early-type galaxies
Creators: name: Gilman, Daniel
name: Agnello, Adriano
name: Treu, Tommaso
name: Keeton, Charles R.
name: Nierenberg, Anna M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The arrival times, positions, and fluxes of multiple images in strong lens systems can be used to infer the presence of dark subhalos in the deflector, and thus test predictions of cold dark matter models. However, gravitational lensing does not distinguish between perturbations to a smooth gravitational potential arising from baryonic and non-baryonic mass. In this work, we quantify the extent to which the stellar mass distribution of a deflector can reproduce flux ratio and astrometric anomalies typically associated with the presence of a dark matter subhalo. Using Hubble Space Telescope images of nearby galaxies, we simulate strong lens systems with real distributions of stellar mass as they would be observed at redshift $z_d=0.5$. We add a dark matter halo and external shear to account for the smooth dark matter field, omitting dark substructure, and use a Monte Carlo procedure to characterize the distributions of image positions, time delays, and flux ratios for a compact background source of diameter 5 pc. By convolving high-resolution images of real galaxies with a Gaussian PSF, we simulate the most detailed smooth potential one could construct given high quality data, and find scatter in flux ratios of $\approx 10\%$, which we interpret as a typical deviation from a smooth potential caused by large and small scale structure in the lensing galaxy. We demonstrate that the flux ratio anomalies arising from galaxy-scale baryonic structure can be minimized by selecting the most massive and round deflectors, and by simultaneously modeling flux ratio and astrometric data.
description: 26 pages, 22 figures, submitted to MNRAS
Enterprise Resource Planning (ERP) System Implementation: Evidence From Ethio- Telecom
Creators: name: Gazu, Hailemeskel
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2016

description: This research work finds challenge and constraint of an Enterprise Resource Planning (ERP) system implementation with particular reference to Ethio telecom. An Enterprise Resource Planning system is a corporate wide information system which is used to integrate the business processes and resources of a company. When the business environment of a company increases and becomes complex, it is difficult to continue with the traditional decentralized information systems for timely decision making and other activities. In today"s competitive business environment, ERP systems are found to be essential for companies to get competitive and strategic advantages. Therefore, the major objective of this study is to assess the implementation challenge of Enterprise resources planning in ethio telecom and to recommend possible solutions for the gap created during the implementation. As result, the researcher has tested the implementation effectiveness by selecting major challenge and other related concepts. This research has a exploratory nature which elaborates the existing phenomenon as it exists. The data was collected using questionnaires from ERP user. The collected data was analyzed using mainly by computer such as SPSS (Statistical Package for the Social Sciences) version 23 Furthermore, the units/strata have been selected since these work units are the major owner of the modules in the system, accordingly the total of 38 employees select randomly among ERP user as a sample by using stratified random sampling technique and questionnaires were distributed accordingly Consequently, results shows that the deploy ERP system is not properly implemented and practiced on the basis of the selected effectiveness variables; it is observed that the ERP system is not effective across the divisions the system is implemented. In addition, problems which hinder the practice of the system were identified. As a result, lack of top management support, the rate of training, documentation and knowledge transfer, compatibility issues with ERP module were found major challenges in ERP implementation in Ethio-telecom. However, the priori criteria "stepwise implementation" was not considered as putting the challenge and constraint in the implementation of ERP in Ethio-telecom. Hence, the researcher has recommended that the company should re-consider its system with regard to the support of top management in assisting successful implementation of ERP in Ethio- telecom. Moreover, user interface of the system should easily be understandable, there should be mechanism so that users can work on the system without any challenge . Finally, the company should give emphasis for the reporting formats so that any decision maker or external stakeholder can the reporting formats should be easily understandable
MDverse: Shedding Light on the Dark Matter of Molecular Dynamics Simulations
Creators: name: Poulain, Pierre
Publisher: name: Zenodo
Year: 2023
Subjects: molecular dynamics
MD
simulation
FAIR principles
metadata
tomato soup

description: Presentation given at the The 9th Annual CCPBioSim 2023 Conference - Biomolecular Simulations for a Better World (from Monday 10 July 2023 to Wednesday 12 July 2023) https://www.ccpbiosim.ac.uk/events/upcoming-events/eventdetail/95/18,19,20/9th-annual-ccpbiosim-conference-biomolecular-simulations-for-a-better-world
description: preprint: https://www.biorxiv.org/content/10.1101/2023.05.02.538537v1
High Impedance Josephson Junction Resonators in the Transmission Line Geometry
Creators: name: Ranni, Antti
name: Havir, Harald
name: Haldar, Subhomoy
name: Maisi, Ville F.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this article we present an experimental study of microwave resonators made out of Josephson junctions. The junctions are embedded in a transmission line geometry so that they increase the inductance per length for the line. By comparing two devices with different input/output coupling strengths, we show that the coupling capacitors, however, add a significant amount to the total capacitance of the resonator. This makes the resonators with high coupling capacitance to act rather as lumped element resonators with inductance from the junctions and capacitance from the end sections. Based on a circuit analysis, we show that the input and output couplings of the resonator are limited to a maximum value of $ω_r Z_0 /4 Z_r$ where $ω_r$ is the resonance frequency and $Z_0$ and $Z_r$ are the characteristic impedances of the input/output lines and the resonator respectively.
description: Accepted version of the manuscript after peer-review
Evaluation of OpenAI Codex for HPC Parallel Programming Models Kernel Generation
Creators: name: Godoy, William F.
name: Valero-Lara, Pedro
name: Teranishi, Keita
name: Balaprakash, Prasanna
name: Vetter, Jeffrey S.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Emerging Technologies (cs.ET)
subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: We evaluate AI-assisted generative capabilities on fundamental numerical kernels in high-performance computing (HPC), including AXPY, GEMV, GEMM, SpMV, Jacobi Stencil, and CG. We test the generated kernel codes for a variety of language-supported programming models, including (1) C++ (e.g., OpenMP [including offload], OpenACC, Kokkos, SyCL, CUDA, and HIP), (2) Fortran (e.g., OpenMP [including offload] and OpenACC), (3) Python (e.g., numba, Numba, cuPy, and pyCUDA), and (4) Julia (e.g., Threads, CUDA.jl, AMDGPU.jl, and KernelAbstractions.jl). We use the GitHub Copilot capabilities powered by OpenAI Codex available in Visual Studio Code as of April 2023 to generate a vast amount of implementations given simple + + prompt variants. To quantify and compare the results, we propose a proficiency metric around the initial 10 suggestions given for each prompt. Results suggest that the OpenAI Codex outputs for C++ correlate with the adoption and maturity of programming models. For example, OpenMP and CUDA score really high, whereas HIP is still lacking. We found that prompts from either a targeted language such as Fortran or the more general-purpose Python can benefit from adding code keywords, while Julia prompts perform acceptably well for its mature programming models (e.g., Threads and CUDA.jl). We expect for these benchmarks to provide a point of reference for each programming model's community. Overall, understanding the convergence of large language models, AI, and HPC is crucial due to its rapidly evolving nature and how it is redefining human-computer interactions.
description: Accepted at the Sixteenth International Workshop on Parallel Programming Models and Systems Software for High-End Computing (P2S2), 2023 to be held in conjunction with ICPP 2023: The 52nd International Conference on Parallel Processing. 10 pages, 6 figures, 5 tables
Analysis of plane reflector augmented flat-plate collectors
Creators: name: Csaky, Tuvia.
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.
Isotropy prohibits the loss of strong ellipticity through homogenization in linear elasticity
Creators: name: Francfort, Gilles
name: Gloria, Antoine
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: Probability (math.PR)
subject: FOS: Mathematics

description: Since the seminal contribution of Geymonat, M{ü}ller, and Triantafyllidis, it is known that strong ellipticity is not necessarily conserved by homogenization in linear elasticity. This phenomenon is typically related to microscopic buckling of the composite material. The present contribution is concerned with the interplay between isotropy and strong ellipticity in the framework of periodic homogenization in linear elasticity. Mixtures of two isotropic phases may indeed lead to loss of strong ellipticity when arranged in a laminate manner. We show that if a matrix/inclusion type mixture of isotropic phases produces macroscopic isotropy, then strong ellipticity cannot be lost. R{é}sum{é}. Nous savons depuis l'article fondateur de Geymonat, M{ü}ller et Triantafyl-lidis qu'en{é}lasticit{é}en{é}lasticit{é} lin{é}aire l'homog{é}n{é}isation p{é}riodique ne conserve pas n{é}cessairement l'ellipticit{é} forte. Ce ph{é}nom{è}ne est li{é} au flambage microscopique des composites. Notre contribution consiste examiner le r{ô}le de l'isotropie dans ce type de pathologie. Le m{é}lange de deux phases isotropes peut en effet conduir{è} a cette perte si l'arrangement est celui d'un lamin{é}. Nous montrons qu'en revanche, si un arrangement de type ma-trice/inclusion produit un tenseur homog{é}n{é}is{é} isotrope, alors la forte ellipticit{é} est con-serv{é}e.
Wormhole $C$ metric
Creators: name: Nozawa, Masato
name: Torii, Takashi
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The C-metric in vacuum general relativity describes a pair of accelerated black holes supported by conical singularity. In this paper, we present a new family of exact solutions to the Einstein-phantom scalar system that describes accelerated wormholes in AdS. In the zero acceleration limit with a vanishing potential, the present solution recovers the asymptotically flat wormhole originally constructed by Ellis and Bronnikov. The scalar potential of the phantom field has an infinite number of critical points and is expressed in terms of the superpotential, which is obtained by suitable analytic continuation of one parameter family of the ${\cal N}=2$ gauged supergravity. As one traverses two asymptotic regions connected by throat, the scalar field evolves from AdS, corresponding to the origin of the potential, towards the neighboring AdS local minimum of the potential. We find that the flipping transformation, which interchanges the role of ``radial'' and "angular'' coordinates at the expense of double Wick rotation, is an immediate cause for the existence of two branches of static AdS wormholes discovered previously. Contrary to the ordinary C-metric, the conical singularity along the symmetry axis can be completely resolved, when the (super)potential is periodic or zero. We explore the global causal structure in detail.
description: 17 pages, 5 figures; v2 references added, accepted version in PRD
The interactions between hand pattern, shoulder pain and upper extremity demand in manual wheelchair users
Creators: name: Walford, Shelby Lee
Publisher: name: The University of Texas at Austin
Year: 2022
Subjects: Biomechanics
Musculoskeletal modeling and simulation
Spinal cord injury

description: Manual wheelchair users rely on their upper limbs for independent mobility, which requires frequent loading of their upper extremities. This loading often results in shoulder pain and injuries, which leads to decreased independence and quality of life. The overall goal of this research was to understand how the recovery hand pattern used by manual wheelchair users influences shoulder pain development and upper extremity demand through a series of studies using experimental and simulation methods. Previous research has identified shoulder adductor weakness as a predictor of shoulder pain development in manual wheelchair users. Therefore, an experimental study determined whether the hand pattern used during fast wheelchair propulsion was correlated with shoulder pain development and shoulder adductor strength. We found that over-rim patterns were not correlated with any pain groups. However, more over-rim patterns were weakly correlated with lower adductor strength, but the variability in this correlation was high. Thus, changing hand patterns alone may not be sufficient to prevent or mitigate shoulder pain. In a second study, shoulder joint contact forces were compared between hand patterns and within each pattern when different shoulder muscles were weakened using modeling and simulation techniques. Single-loop and semi-circular patterns required the highest and lowest joint contact force, respectively. Weakened internal rotators in all patterns and weakened adductors in single-loop and double-loop patterns induced the highest joint loading increases compared to non-weakened conditions. This suggests that shoulder joint loading is lowest when using a semi-circular pattern with and without shoulder muscle weakness, and therefore is less likely to result in shoulder injuries. A final modeling study quantified different measures of demand (muscle stress and power, metabolic cost and shoulder joint loading) for different hand patterns on a continuum. Patterns that were more under-rim improved multiple demand measures (muscle stress, total muscle power and peak joint contact force), but only weak trends were present in other measures. Thus, using under-rim patterns reduces these demand measures and consequently the risk of injury. Together, these studies provide additional insight into how manual wheelchair users can alter their recovery hand pattern for the prevention of shoulder pain and injuries.
Charm Quark Mass with Calibrated Uncertainty
Creators: name: Erler, Jens
name: Masjuan, Pere
name: Spiesberger, Hubert
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We determine the charm quark mass $\hat{m}_c$ from QCD sum rules of moments of the vector current correlator calculated in perturbative QCD at ${\cal O} (\hatα_s^3)$. Only experimental data for the charm resonances below the continuum threshold are needed in our approach, while the continuum contribution is determined by requiring self-consistency between various sum rules. Existing data from the continuum region can then be used to bound the theoretic uncertainty. Our result is $\hat{m}_c(\hat{m}_c) = 1272 \pm 8$~MeV for $\hatα_s(M_Z) = 0.1182$.
description: 28 pages, 6 figures
title: Queer-Sein im Glasgow der 90er – Douglas Stuarts „Young Mungo“
Creators: name:  Beaufaÿs, Sandra
Publisher: name: DuEPublico
Year: 2023

description: Was bedeutet es, als queerer Jugendlicher im Arbeiter*innenmilieu aufzuwachsen? Dieses Themas hatten sich bereits die Franzosen Didier Eribon und Eduard Louis autobiografisch angenommen, auch der US-vietnamesische Autor Ocean Vuong behandelt ein ähnliches Sujet im Rahmen der eigenen familiären Migrationsgeschichte. Der gebürtige Schotte Douglas Stuart legte 2022 mit dem Roman „Young Mungo“ nach. Seine wirklichkeitsnahen Schilderungen lassen keinen Zweifel daran, dass der Autor weiß, wovon er schreibt – der Plot ist im Umfeld seiner Kindheit in einem Arbeiter*innenviertel im Glasgow der 1990er-Jahre angesiedelt –, die Erzählung ist jedoch eindeutig fiktional und ein echter Pageturner. In die deftige Handlung ist die unglaublich zarte und berührende Geschichte einer ersten Liebe hineingewoben.
description: blog interdisziplinäre geschlechterforschung
Environmental stress cracking of low density polyethylene
Creators: name: Belcher, JoAnne L.
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.
Asymptotic behavior of semistable Lévy exponents and applications to fractal path properties
Creators: name: Kern, Peter
name: Meerschaert, Mark M.
name: Xiao, Yimin
Publisher: name: arXiv
Year: 2016
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: This paper proves sharp bounds on the tails of the Lévy exponent of an operator semistable law on $\mathbb R^d$. These bounds are then applied to explicitly compute the Hausdorff and packing dimensions of the range, graph, and other random sets describing the sample paths of the corresponding operator semi-selfsimilar Lévy processes. The proofs are elementary, using only the properties of the Lévy exponent, and certain index formulae.
Inference and uncertainty characterization in complex structures
Creators: name: Lin, Qiaohui
name: 0000-0003-2792-0176
Publisher: name: The University of Texas at Austin
Year: 2022
Subjects: Networks
Subgraph counts
Separate exchangeability

description: The common theme of the projects in this thesis is statistical inference and characterizing uncertainty for complex structures, including networks and separately exchangeable data matrices. In the first two projects, we focus on uncertainty quantification of network subgraph count statistics. In the first project, we study the network jackknife procedure to consistently estimate the variance of subgraph counts under the sparse graphon model. In the second project, we develop a family of network multiplier bootstraps for subgraph counts using linear and quadratic weights. In both projects, we complement our theoretical proofs with simulation studies and real data analysis on social networks. In the final third project we consider the more elementary questions of how investigators arrive at certain model assumptions, focusing on commonly used symmetry assumptions known as various forms of exchangeability. In particular, we argue for a more common use of separate exchangeability as a modeling principle. We show how this notion is still ignored in some recent work, but could easily be included.
Estamos en la lucha : revealing and resisting racism and linguicism in mathematics education
Creators: name: Jones, Stacy R.
name: 0000-0001-7965-061X
Publisher: name: The University of Texas at Austin
Year: 2022
Subjects: subject: Mathematics
subject: FOS: Mathematics
subject: Critical race theory
subject: Latino critical theory
subject: Composite counter-storytelling

description: This dissertation reveals dominant narratives of Raza learners in mathematics education research and challenges these narratives through composite counter-storytelling. Our society, and consequently mathematics education and mathematics education research, is built from a white, middle-class perspective which silences the voices and experiences of Raza and other Communities of Color. I use Latinx critical theory throughout three distinct articles to reveal and challenge myths told from the dominant culture about the learning and doing of mathematics for Raza learners and to amplify and center the voices of elementary age Raza learners. The first article examines the dominant narratives in mathematics education research through a critical literature analysis. The second article provides a methodology for developing composite counter-stories, extending Solórzano & Yosso’s (2001; 2002) work on the components in composite counter-storytelling and Cook’s (2013) work on place as a character in composite counter-storytelling. The final article explores four Borderlands of Language elementary age Raza learners navigate due to the conflicting spaces and messages of dominant and home cultures. Major findings reveal the deficit narratives of Raza learners in mathematics education (research) and how Raza learners resist and persevere in spaces not made with them in mind. This study presents new knowledge for the field of mathematics education research, not for Raza learners experiencing marginalization daily, in naming the racist behaviors which have been normalized in academia and mathematics classrooms. Furthermore, this study extends our understanding of the development of composite counter-stories through centering the voices of Raza learners. Finally, this dissertation fills a gap in the existing literature on how Raza learners navigate language as a Border space in predominantly white spaces, such as the mathematics classroom.
Ownership Structure and Financial Performance of Ethiopian Banks: A Comparative Analysis of Private and State Owned Banks
Creators: name: Worku, Mohammed
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2015

description: The main objective of this study is to examine the effect of ownership structure on financial performance of Ethiopian commercial banks. In order to achieve the stated objective, the study adopts a quantitative research approach by using regression and test for means equality analysis techniques. Balanced panel data covering ten-year period from 2004 to 2013 for eight commercial banks are analyzed by random effect Ordinary Least Square (OLS) estimation technique. The findings of the study show that ownership structure, bank's size, gross domestic product and inflation have statistically significant effects on banks performance. In addition, the empirical evidence clearly shows that private-owned banks are superior in performance than state-owned banks. Out of eleven parameters used to measure performance five (in terms of; return on asset, capital adequacy, asset utilization ratio, debt to equity ratio and equity multiplier) supports the superiority of private-owned banks, two (in terms of; return on equity and management quality) supports for state-owned banks and the remaining four (in terms of; asset quality, loan to deposit ratio, liquid asset to deposit ratio and operating efficiency) not statistically significant difference between the two sub-sectors. So, until the Ethiopian banks are fully privatized, banks under government control should be made to compete with the private banks. Keywords: Ownership Structure, Financial Performance, Commercial Banks in Ethiopia
Pore-scale statistics of temperature and thermal energy dissipation rate in turbulent porous convection
Creators: name: Xu, Ao
name: Xu, Ben-Rui
name: Xi, Heng-Dong
Publisher: name: arXiv
Year: 2023
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We report pore-scale statistical properties of temperature and thermal energy dissipation rate in a two-dimensional porous Rayleigh-Bénard (RB) cell. High-resolution direct numerical simulations were carried out for the fixed Rayleigh number ($Ra$) of $10^{9}$ and the Prandtl numbers ($Pr$) of 5.3 and 0.7. We consider sparse porous media where the solid porous matrix is impermeable to both fluid and heat flux. The porosity ($ϕ$) range $0.86 \leq ϕ\le 0.98$, the corresponding Darcy number ($Da$) range $10^{-4}
description: 34 pages, 16 figures
The reduction of noise and distortion in wideband high frequency amplifiers
Creators: name: Stephens, Thomas David.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
The intrinsic beauty of polytropic spheres in reduced variables
Creators: name: Caimmi, R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The concept of reduced variables is revisited with regard to van der Waals' theory and an application is made to polytropic spheres, where the reduced radial coordinate is ${\rm red}(r)=r/R=ξ/Ξ$, $R$ radius, and the reduced density is ${\rm red}(ρ)=ρ/λ=θ^n$, $λ$ central density. Reduced density profiles are plotted for several polytropic indexes within the range, $0\le n\le5$, disclosing two noticeable features. First, any point of coordinates, $({\rm red}(r),{\rm red}(ρ))$, $0\le{\rm red}(r)\le1$, $0\le{\rm red}(ρ)\le1$, belongs to a reduced density profile of the kind considered. Second, sufficiently steep i.e. large $n$ reduced density profiles exhibit an oblique inflection point, where the threshold is found to be located at $n=n_{\rm th}=0.888715$. Reduced pressure profiles, ${\rm red}(P)=P/\varpi=θ^{n+1}$, $\varpi$ central pressure, Lane-Emden fucntions, $θ=(ρ/λ)^{1/n}$, and polytropic curves, ${\rm red}(P)={\rm red}(P)({\rm red}(ρ))$, are also plotted. The method can be extended to nonspherical polytropes with regard to a selected direction, ${\rm red}(r)(μ)=r(μ)/R(μ)=ξ(μ)/Ξ(μ)$. The results can be extended to polytropic spheres made of collisionless particles, for polytropic index within a more restricted range, $1/2\le n\le5$.
description: 18 pages, 1 table and 5 figures. A word text with different symbols appears in the journal reference
Dynamical Hall responses of disordered superconductors
Creators: name: Hijano, Alberto
name: Vosoughi-nia, Sakineh
name: Bergeret, F. Sebastián
name: Virtanen, Pauli
name: Heikkilä, Tero T.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We extend the Mattis-Bardeen theory for the dynamical response of superconductors to include different types of Hall responses. This is possible thanks to a recent modification of the quasiclassical Usadel equation, which allows for analyzing Hall effects in disordered superconductors and including the precise frequency dependence of such effects. Our results form a basis for analyzing dynamical experiments especially on novel thin-film superconductors, where ordinary Hall and spin Hall effects can both show up.
description: 12 pages, 4 figures
Tuning the pharmacokinetic performance of quercetin by cocrystallization
Creators: name: M. Haskins, Molly
name: Kavanagh, Oisín N.
name: Sanii, Rana
name: Khorasani, Sanaz
name: Chen, Jia-Mei
name: Zhang, Zhi-Yuan
name: Dai, Xia-Lin
name: Ren, Bo-Ying
name: Lu, Tong-Bu
name: ZAWOROTKO, MICHAEL
Publisher: name: University of Limerick
Year: 2023
Subjects: subject: Chemical sciences
subject: FOS: Chemical sciences

description: Quercetin (QUE) is a widely studied nutraceutical with a number of potential therapeutic properties. Although QUE is abundant in the plant kingdom, its poor solubility (≤20 μg/mL) and poor oral bioavailability have impeded its potential utility and clinical development. In this context, cocrystallization has emerged as a useful method for improving the physicochemical properties of biologically active molecules. We herein report a novel cocrystal of the nutraceutical quercetin (QUE) with the coformer pentoxifylline (PTF) and a solvate of a previously reported structure between QUE and betaine (BET). We also report the outcomes of in vitro and in vivo studies of QUE release and absorption from a panel of QUE cocrystals: betaine (BET), theophylline (THP), l-proline (PRO), and novel QUEPTF. All cocrystals were found to exhibit an improvement in the dissolution rate of QUE. Further, the QUE plasma levels in Sprague–Dawley rats showed a 64-, 27-, 10- and 7-fold increase in oral bioavailability for QUEBET·MeOH, QUEPTF, QUEPRO, and QUETHP, respectively, compared to QUE anhydrate. We rationalize our in vivo and in vitro findings as the result of dissolution–supersaturation–precipitation behavior.