cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Hybrid annealing using a quantum simulator coupled to a classical computer
Creators: name: Graß, Tobias
name: Lewenstein, Maciej
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Finding the global minimum in a rugged potential landscape is a computationally hard task, often equivalent to relevant optimization problems. Simulated annealing is a computational technique which explores the configuration space by mimicking thermal noise. By slow cooling, it freezes the system in a low-energy configuration, but the algorithm often gets stuck in local minima. In quantum annealing, the thermal noise is replaced by controllable quantum fluctuations, and the technique can be implemented in modern quantum simulators. However, quantum-adiabatic schemes become prohibitively slow in the presence of quasidegeneracies. Here we propose a strategy which combines ideas from simulated annealing and quantum annealing. In such hybrid algorithm, the outcome of a quantum simulator is processed on a classical device. While the quantum simulator explores the configuration space by repeatedly applying quantum fluctuations and performing projective measurements, the classical computer evaluates each configuration and enforces a lowering of the energy. We have simulated this algorithm for small instances of the random energy model, showing that it potentially outperforms both simulated thermal annealing and adiabatic quantum annealing. It becomes most efficient for problems involving many quasi-degenerate ground states.
description: 6 pages, 3 figures
Governance Arrangement and Inter Governmental Fiscal Relations of Capital Cities with their National Governments: the Case Study of Addis Ababa City Administration
Creators: name: Demissie, Shimels
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2010

description: Governance arrangement of capital cities and their inter-governmental fiscal relations with national governments, particularly in federal countries, has started becoming one of the research topics and agenda of discussion. It is in line with this direction that this paper focuses on describing the governance arrangement of Addis Ababa and its inter-governmental fiscal relations with the federal government, as the capital city of a federal government, seat of Oromia state and African Union as well as a local government to its residents. In order to be able to investigate the current status of the city in the national governance and finance structure, the role and position of Addis Ababa city during the Imperial and the Derg Regimes has been critically reviewed and analyzed. Moreover, the changes in the governance and inter-governmental fiscal relations of Addis Ababa due to the adoption of ethnic-based federal system have been addressed using the empirical experience of other federal capital cities. The position of regional governments and urban local governments in the country's governance structure is also described briefly to determine the ways Addis Ababa is being governed differently from other sub-national units. Furthermore, through qualitative and quantitative approaches, expenditure responsibilities, revenue powers and access to transfers have been analyzed. A general conclusion emerging from this thesis study is that the governance arrangement of Addis Ababa is the most complicated and unique in the country mainly due to the challenge to reconcile local, regional and national interests over the city. Additionally, the strong historical attachment of the city with the nation-state formation process in Ethiopia, Addis Ababa has been the main center of the country's economic, political and business activities, and then has relatively higher revenue bases with huge expenditure responsibilities. Contrary to the expectation of the writer from other federal capital cities, Addis Ababa is found the only sub- national unit of the country to be deprived from federal government transfers. The study has also come up with important recommendations. Basic Terms: Governance Arrangement, Intergovernmental Fiscal Relations, Ethnic Based Federalism, and Fiscal Support
Wave-field representations with Green's functions, propagator matrices, and Marchenko-type focusing functions
Creators: name: Wapenaar, Kees
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Classical acoustic wave-field representations consist of volume and boundary integrals, of which the integrands contain specific combinations of Green's functions, source distributions and wave fields. Using a unified matrix-vector wave equation for different wave phenomena, these representations can be reformulated in terms of Green's matrices, source vectors and wave-field vectors. The matrix-vector formalism also allows the formulation of representations in which propagator matrices replace the Green's matrices. These propagator matrices, in turn, can be expressed in terms of Marchenko-type focusing functions. An advantage of the representations with propagator matrices and focusing functions is that the boundary integrals in these representations are limited to a single open boundary. This makes these representations a suitable basis for developing advanced inverse scattering, imaging and monitoring methods for wave fields acquired on a single boundary.
description: 71 pages, 7 figures, 1 table
A scalable and fast artificial neural network syndrome decoder for surface codes
Creators: name: Gicev, Spiro
name: Hollenberg, Lloyd C. L.
name: Usman, Muhammad
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Emerging Technologies (cs.ET)
subject: Machine Learning (cs.LG)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Surface code error correction offers a highly promising pathway to achieve scalable fault-tolerant quantum computing. When operated as stabilizer codes, surface code computations consist of a syndrome decoding step where measured stabilizer operators are used to determine appropriate corrections for errors in physical qubits. Decoding algorithms have undergone substantial development, with recent work incorporating machine learning (ML) techniques. Despite promising initial results, the ML-based syndrome decoders are still limited to small scale demonstrations with low latency and are incapable of handling surface codes with boundary conditions and various shapes needed for lattice surgery and braiding. Here, we report the development of an artificial neural network (ANN) based scalable and fast syndrome decoder capable of decoding surface codes of arbitrary shape and size with data qubits suffering from the depolarizing error model. Based on rigorous training over 50 million random quantum error instances, our ANN decoder is shown to work with code distances exceeding 1000 (more than 4 million physical qubits), which is the largest ML-based decoder demonstration to-date. The established ANN decoder demonstrates an execution time in principle independent of code distance, implying that its implementation on dedicated hardware could potentially offer surface code decoding times of O($μ$sec), commensurate with the experimentally realisable qubit coherence times. With the anticipated scale-up of quantum processors within the next decade, their augmentation with a fast and scalable syndrome decoder such as developed in our work is expected to play a decisive role towards experimental implementation of fault-tolerant quantum information processing.
description: 11 pages, 6 figures
Evaluation of Procurement Process the Case of Addis Ababa Water and Sewerage Authority
Creators: name: Dubale, Yonas
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2014

description: Procurement is a means by which an organization acquire good and services in a scientific manner. More than two third of the organization annual budget is spend through procurement. Every activity of the organization, either service or goods provider, is highly attached with the procured product. Thus, failure of the procurement unit has a direct impact on the failure of all other department. This study focused on the evaluation of procurement process at Addis Ababa Water and Sewerage Authority. The purpose of the study was to assess the performance of procurement department, the satisfaction of the user department, the challenges faced by the procurement department and the adverse effect of the perception towards the department. For the accomplishment of this, the study was employed through descriptive designee in whom the selection of respondents is carried out by using purposive sampling technique. 44 employees are considered as a sample unit. Furthermore, exclusive interview has made with the procurement support team leader and the procurement officer, who has more than 13 years of experience. Both primary and secondary data are used. The major finding indicates that, the performance of the procurement department is found in unsatisfactory level. The department work flow is too long and bureaucratic nature which is not flexible for new idea. Even though straggling to avoid rent seeker is admirable, most of the time the adverse effect has forgotten. The department is not fully authorized to make decision in every procurement step and method. Besides, the qualification of the staff and training held is not well enough to fill the gap. The negotiation, specification and contract management is too deprived, though they are highly important. Moreover, there is no any classification of inventory and vendor to make the procurement process more prolific
Numerical thermal augmentation of ternary nanofluid in a tube with stent, torus-ring and surface-grooved twisted tapes under non-uniform wall temperature
Creators: name: Ademola Fetuga, Ibrahim
name: Thomas Olakoyejo, Olabode
name: Mayokun Abolarin, Sogo
name: Omolade Adelaja, Adekunle
name: Oluwatusin, Omotayo
name: Musibau Sobamowo, Gbeminiyi
name: Kolawole Gbegudu, Joshua
name: Uche Onwuegbusi, Adrian
name: Petrus Meyer, Josua
Publisher: name: University of Limerick
Year: 2023
Subjects: classificationCode: 40
subject: Engineering

description: This paper presents a numerical analysis of flow and thermal characteristics in a plain tube with various inserts, including a stent, torus ring, and surface-grooved twisted tape, using a ternary nanofluid consisting of SiO2, ZnO, and CaO nanoparticles as the working fluid. Computational fluid dynamics simulations were conducted using ANSYS Fluent commercial codes, focusing on laminar Reynolds numbers ranging from 500 to 2000 and a non-uniform wall temperature profile. The objective is to investigate the Nusselt number, pressure drop, thermal performance, and pumping power of the ternary nanofluid with nanoparticle concentrations ranging from 0.01 to 0.05%, considering various geometrical parameters of the grooved twisted tape insert, such as thickness ratio (0.019–0.033), width ratio (0.38–0.68), and pitch ratio (1.77–5.77). The results show that flow and thermal indicators such as Nusselt number, thermal performance factor, pressure drop and pumping power increased with thickness and width ratios. Conversely, an increase in pitch ratio results in lower flow and thermal indicators. For instance, in a plane tube without inserts, no noticeable difference in pressure drop is observed and the thermal performance factor is about 1.87-1.25 times that of pure water when nanoparticle concentration is increased from 0.01 to 0.05%. The width ratio 0.68, thickness ratio 0.033 and pitch ratio 1.77 yielded a maximum thermal performance factor of about 1.4, 1.7 and 2.3 more than smooth tube, respectively, and a maximum pumping power 0.000654 W, 0.000223 W and 0.00020 W, respectively. The findings emphasize significant improvements in heat transfer and flow properties, shedding light on the innovative configuration’s potential application as an improved heat exchanger. This research advances understanding of ternary nanofluid behavior and provides useful information for enhancing heat transfer in a variety of engineering applications.
Elementare Validität der KiL-Maße für fachdidaktisches Wissen und Fachwissen im schulischen Kontext von Lehramtsstudierenden der Mathematik
Creators: name: Loch, Carolin
name: Lindmeier, Anke
name: Heinze, Aiso
Publisher: name: Gesellschaft für Didaktik der Mathematik
Year: 2014
Subjects: subject: 510

description: In der KiL-Studie (Messung professioneller Kompetenzen in mathematischen und naturwissenschaftlichen Lehramtsstudiengängen) wurde fachspezifisches Wissen von Lehramtsstudierenden als Fachwissen (FW), fachdidaktisches Wissen (FDW) und Fachwissen im schulischen Kontext (FWsK) konzeptualisiert und entsprechende Instrumente zur standardisierten Erhebung dieser Wissensbereiche entwickelt. In diesem Beitrag wird ausgehend von den quantitativen Befunden zur Struktur dieser Tests (N=505) eine ergänzende Interviewstudie vorgestellt. Diese untersucht die inhaltliche Validität der beiden schulnahen Maße auf Aufgabenebene um ambivalente quantitative Befunde einordnen zu können. Dabei gelingt es aufzuzeigen wie Lehramtsstudierende (N=18) auf unterschiedliches Wissen zur Lösung der Aufgaben mit schulischem Bezug (FDW, FWsK) zurückgreifen.
Earth Shielding and Daily Modulation from Electrophilic Boosted Dark Particles
Creators: name: Chen, Yifan
name: Fornal, Bartosz
name: Sandick, Pearl
name: Shu, Jing
name: Xue, Xiao
name: Zhao, Yue
name: Zong, Junchao
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Boosted dark particles of astrophysical origin can lead to nonstandard nuclear or electron recoil signals in direct detection experiments. %It has been shown that this interpretation successfully explains the excess of keV electron recoil events recently observed by the XENON1T experiment, and that a daily modulation of the signal in the detector is expected. We conduct an investigation of the daily modulation feature of a potential future signal of this type. In particular, we perform simulations of the dark particle interactions with electrons in atoms building up the Earth on its path to the detector, and provide in-depth predictions for the expected daily changes in the signal for various direct detection experiments, including XENONnT, PandaX, and LUX-ZEPLIN.
description: 15 pages, 12 figures. published version in PRD. For the code to calculate the atomic ionization form factor, see https://github.com/XueXiao-Physics/AtomIonCalc (AtomIonCalc) . For the Monte Carlo simulation of the electrophilic dark particles traveling inside the earth, see https://github.com/XueXiao-Physics/realEarthScatterDM (realEarthScatterDM). v4: location of detectors corrected
Amtliche Mitteilungen der Pädagogischen Hochschule Ruhr Nr. 17
Creators: name: (:Unkn) Unknown
Publisher: name: Pädagogische Hochschule Ruhr
Year: 1978
Subjects: subject: 080

description: Wahlbekanntmachung für die Nachwahlen zu den Fachbereichsversammlungen der Fachbereiche V, VI und VII
description: Amtliche Mitteilungen der Pädagogischen Hochschule Ruhr ; 17
Outcomes for families of respite daycare for their preschool children
Creators: name: Yandell, Margaret.
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.
Amtliche Mitteilungen der Pädagogischen Hochschule Ruhr Nr. 18
Creators: name: (:Unkn) Unknown
Publisher: name: Pädagogische Hochschule Ruhr
Year: 1978
Subjects: subject: 080

description: Änderung der Wahlbekanntmachung für die Nachwahlen zu den Fachbereichsversammlungen der Fachbereiche V, VI und VII
description: Amtliche Mitteilungen der Pädagogischen Hochschule Ruhr ; 18
Unravelling Quantum Dot Array Simulators via Singlet-Triplet Measurements
Creators: name: Gray, Johnnie
name: Bayat, Abolfazl
name: Puddy, Reuben K.
name: Smith, Charles G.
name: Bose, Sougato
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Recently, singlet-triplet measurements in double dots have emerged as a powerful tool in quantum information processing. In parallel, quantum dot arrays are being envisaged as analog quantum simulators of many-body models. Thus motivated, we explore the potential of the above singlet-triplet measurements for probing and exploiting the ground-state of a Heisenberg spin chain in such a quantum simulator. We formulate an efficient protocol to discriminate the achieved many-body ground-state with other likely states. Moreover, the transition between quantum phases, arising from the addition of frustrations in a $J_1-J_2$ model, can be systematically explored using the same set of measurements. We show that the proposed measurements have an application in producing long distance heralded entanglement between well separated quantum dots. Relevant noise sources, such as non-zero temperatures and nuclear spin interactions, are considered.
description: v2: 10 pages, 9 figures, revisions to text and references added. Section on imperfect couplings added
Homological finiteness of functors on an additive category and applications
Creators: name: Djament, Aurélien
name: Touzé, Antoine
Publisher: name: arXiv
Year: 2021
Subjects: subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics

description: We give sufficient conditions which ensure that a functor of finite length from an additive category to finite-dimensional vector spaces has a projective resolution whose terms are finitely generated. For polynomial functors, we study also a weaker homological finiteness property, which applies to twisted homological stability for matrix monoids. This is inspired by works by Schwartz and Betley-Pirashvili, which are generalised; this also uses decompositions {à} la Steinberg over an additive category that we recently got with Vespa. We show also, as an application, a finiteness property for stable homology of linear groups on suitable rings.
description: in French language
An exploratory study of a parent education program : "Families : fun or friction ?"
Creators: name: Barca, Christine 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.
Longitudinally asymmetric stratospheric oscillation on a tidally locked exoplanet
Creators: name: Cohen, Maureen
name: Bollasina, Massimo A.
name: Palmer, Paul I.
name: Sergeev, Denis E.
name: Boutle, Ian A.
name: Mayne, Nathan J.
name: Manners, James
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: Using a three-dimensional general circulation model, we show that the atmospheric dynamics on a tidally locked Earth-like exoplanet, simulated with the planetary and orbital parameters of Proxima Centauri b, support a longitudinally asymmetric stratospheric wind oscillation (LASO), analogous to Earth's quasi-biennial oscillation (QBO). In our simulations, the LASO has a vertical extent of 35--55 km, a period of 5--6.5 months, and a peak-to-peak wind speed amplitude of -70 to +130 m/s with a maximum at an altitude of 41 km. Unlike the QBO, the LASO displays longitudinal asymmetries related to the asymmetric thermal forcing of the planet and to interactions with the resulting stationary Rossby waves. The equatorial gravity wave sources driving the LASO are localised in the deep convection region at the substellar point and in a jet exit region near the western terminator, unlike the QBO, for which these sources are distributed uniformly around the planet. Longitudinally, the western terminator experiences the highest wind speeds and undergoes reversals earlier than other longitudes. The antistellar point only experiences a weak oscillation with a very brief, low-speed westward phase. The QBO on Earth is associated with fluctuations in the abundances of water vapour and trace gases such as ozone which are also likely to occur on exoplanets if these gases are present. Strong fluctuations in temperature and the abundances of atmospheric species at the terminators will need to be considered when interpreting atmospheric observations of tidally locked exoplanets.
description: 18 pages, 7 figures
Acceleration of pro-caspase-3 maturation and cell migration inhibition in human breast cancer cells by phytoconstituents of Rheum emodi rhizome extracts
Creators: name: Naveen Kumar, D. R.
name: Cijo George, V.
name: Suresh, P. K.
name: Kumar, R. Ashok
Publisher: name: Technische Universität Dortmund
Year: 2013
Subjects: subject: cancer-specific cytotoxicity
subject: ER-negative breast cancer
subject: aspase-3
subject: anti-metastasis
subject: HPLC
subject: GC-MS
subject: 610

description: The aggressive nature of estrogen receptor (ER)-negative breast cancer subtype obligates for innovative targeted therapies. The present study aimed to investigate the phytoconstituents and specific anticancer activities of Rheum emodi rhizome, a known food source used locally to treat various ailments. Petroleum ether extracts (hot [PHR] and cold [PCR]) of R. emodi, exhibited significant free radical scavenging potentials through DPPH and reducing power assays, rendering them as good sources of antioxidants. The extracts, PHR and PCR had shown significant (P < 0.05) cancer-cell-specific cytotoxicity in the assayed cells (MDA-MB-231 [breast carcinoma] and WRL-68 [non-tumoral]) at 100 μg/ml, and 50 and 100 μg/ml concentrations respectively. Extracts also induced fervent apoptosis in ER-negative cells (MDA-MB-231) compared to ER-positive subtype (MCF-7), and found to involve CPP32/caspase-3 in its apoptosis induction mechanism. Moreover, extracts had an inevitable potential to inhibit the migration of metastatic breast cancer cells (MDA-MB-231)in vitro. Further, the active principles of extracts were identified through HPLC and GC-MS analysis to reveal major polyphenolics, 4,7-Dimethyl-(octahydro)indolo[4,3-fg]quinolin-10-one, 5-Oxo-isolongifolene, Valencene-2, and other quinone, quinoline and anthraquinone derivatives. The extracts are thus good candidates to target malignant ER-negative breast cancer, and the identified phytoconstituents could be eluted in further exploratory studies for use in dietary-based anti-breast cancer therapies.
description: EXCLI Journal ; Vol. 12, 2013
Child protection work : social workers speak of their experiences
Creators: name: Manning, Debra Jane.
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.
Continuum extrapolation of the gradient-flowed color-magnetic correlator at $1.5\,T_c$
Creators: name: Altenkort, Luis
name: Eller, Alexander M.
name: Kaczmarek, Olaf
name: Mazur, Lukas
name: Moore, Guy D.
name: Shu, Hai-Tao
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: In a recently published work we employ gradient flow on the lattice to extract the leading contribution of the heavy quark momentum diffusion coefficient in the heavy quark limit from calculations of a well-known two-point function of color-electric field operators. In this article we want to report the progress of calculating the recently derived color-magnetic correlator that encodes a finite mass correction to this transport coefficient. The calculations we present here are based on the same ensemble of quenched gauge configurations at $1.5\, T_c$ that we previously used for the color-electric correlator.
description: 7 pages, 4 figures, presented at the 38th International Symposium on Lattice Field Theory
The Effectiveness of Sales Promotion Tools on Purchase Decision of Consumers: The case of Walia beer
Creators: name: Ketema, Eyerusalem
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: In the emerging business scenario various promotional Tools are used by the marketer for influencing the purchase decision of consumers. Sales promotion, is a key element of promotional mix, it has been widely used to sustain competitive advantage, increase sales and stimulate consumer purchase decision and it is becoming a valuable tool for marketers to influence purchase decision. Through this study, an effort has been made to evaluate the effectiveness of various sales promotion tools in inducing purchase decision of consumers. For conducting the research Survey method was used to collect the data from Walia beer users residing in Addis Ababa. A sample of 267 was studied by applying descriptive and inferential statistics techniques. Specifically, the data were analyzed using correlation analysis and all the proposed hypotheses were tested by using multiple regression technique. The result shows that among the four sales promotion tools: point of sale materials, price discount and buy one and get one free are the most effective variables for inducing consumer purchase decision respectively. Whereas under the crown prize is the least effective in inducing purchase decision of consumers. The results of this study would help the managers of Heineken company in selecting the types of promotion that greatly influence the purchase decision of the consumers. Hence, this could help them become more competitive and gain more profit.
Cosmic Tsunamis in Modified Gravity: Disruption of Screening Mechanisms from Scalar Waves
Creators: name: Hagala, R.
name: Llinares, C.
name: Mota, D. F.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Extending general relativity by adding extra degrees of freedom is a popular approach for explaining the accelerated expansion of the Universe and to build high energy completions of the theory of gravity. The presence of such new degrees of freedom is, however, tightly constrained from several observations and experiments that aim to test general relativity in a wide range of scales. The viability of a given modified theory of gravity, therefore, strongly depends on the existence of a screening mechanism that suppresses the extra degrees of freedom. We perform simulations, and find that waves propagating in the new degrees of freedom can significantly impact the efficiency of some screening mechanisms, thereby threatening the viability of these modified gravity theories. Specifically, we show that the waves produced in the symmetron model can increase the amplitude of the fifth force and the parametrized post-Newtonian parameters by several orders of magnitude.
description: 7 pages, 2 figures. Supplemental material included as an appendix. Updated to reflect version published in Phys. Rev. Lett., with several minor adjustments and addition of an appendix
In-medium static quark potential from spectral functions on realistic HISQ ensembles
Creators: name: Parkar, Gaurang
name: Bala, Dibyendu
name: Kaczmarek, Olaf
name: Larsen, Rasmus
name: Mukherjee, Swagato
name: Petreczky, Peter
name: Rothkopf, Alexander
name: Weber, Johannes Heinrich
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We explore the interactions between a quark anti-quark pair in a thermal medium based on lattice QCD ensembles with $N_f = 2+1$ dynamical HISQ flavors. Our dataset spans the phenomenologically relevant temperature range between T=140MeV-2GeV based on lattice sizes $N_τ=10,12$ and $16$, with an aspect ratio of $N_σ/N_τ=4$. The peak position $Ω$ and the width $Γ$ of the spectral function of Wilson-line correlators in Coulomb gauge is computed. We assess the information content in the correlation functions and deploy three complementary strategies to reconstruct spectral information: model fits, Padé approximation and the Bayesian BR method. Limitations of each approach are carefully assessed.
description: Contribution to The 38th International Symposium on Lattice Field Theory, LATTICE2021 26th-30th July, 2021 Zoom/Gather@Massachusetts Institute of Technology, 9 pages, 7 figure, LaTeX, uses PoS class
Stability of a Light Sail Riding on a Laser Beam
Creators: name: Manchester, Zachary
name: Loeb, Abraham
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Optics (physics.optics)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: The stability of a light sail riding on a laser beam is analyzed both analytically and numerically. Conical sails on Gaussian beams, which have been studied in the past, are shown to be unstable without active control or additional mechanical modifications. A new architecture for a passively stable sail-and-beam configuration is proposed. The novel spherical shell design for the sail is capable of "beam riding" without the need for active feedback control. Full three-dimensional ray-tracing simulations are performed to verify our analytical results.
description: Accepted for publication in ApJL
Effects of cultural factors on the management of Asian ethnic welfare agencies
Creators: name: Chu, Kimba Fung-yee.
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.
title: Sexuelle Belästigung
title: eine unsichtbare Dimension von Belastung am Arbeitsplatz
titleType: AlternativeTitle
Creators: name: Holzbecher, Monika
name: Müller, Ursula
Publisher: name: Westdeutscher Verlag
Year: 1992
Subjects: subject: 300
subject: 650

description: Arbeit
The force-force-correlator in hot QCD perturbatively and from the lattice
Creators: name: Ghiglieri, Jacopo
name: Moore, Guy D.
name: Schicho, Philipp
name: Schlusser, Niels
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: High-energy particles traversing a medium experience modified dispersion. In the Quark-Gluon Plasma, such dispersion affects jet propagation and transport properties and should be determined better. Above $\sim 2T_c$ we expect strongly coupled infrared behavior and perturbative ultraviolet behavior, allowing a perturbative matching to an effective theory called EQCD, which can be studied non-perturbatively. We study the relevant non-local operator in EQCD at next-to-leading order which allows for a complete EQCD-to-lattice match and prepares the groundwork for a matching between EQCD and full QCD. Our results in EQCD show remarkable agreement between perturbation theory and the lattice in the expected regime.
description: 34 pages, 3 figures, 4 tables. Updates of (i) the NLO perturbative result in eq. (4.12), (ii) the numerical integration in eq. (5.2), (iii) numerical values in tabs. 1 and 3, and (iv) figures. Conclusions unchanged
An exploratory study of the issues faced by Jewish parents of adults with an intellectual disability
Creators: name: Udis, Yonit.
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 Habitability of Planets Orbiting M-dwarf Stars
Creators: name: Shields, Aomawa L.
name: Ballard, Sarah
name: Johnson, John Asher
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The prospects for the habitability of M-dwarf planets have long been debated, due to key differences between the unique stellar and planetary environments around these low-mass stars, as compared to hotter, more luminous Sun-like stars. Over the past decade, significant progress has been made by both space- and ground-based observatories to measure the likelihood of small planets to orbit in the habitable zones of M-dwarf stars. We now know that most M dwarfs are hosts to closely-packed planetary systems characterized by a paucity of Jupiter-mass planets and the presence of multiple rocky planets, with roughly a third of these rocky M-dwarf planets orbiting within the habitable zone, where they have the potential to support liquid water on their surfaces. Theoretical studies have also quantified the effect on climate and habitability of the interaction between the spectral energy distribution of M-dwarf stars and the atmospheres and surfaces of their planets. These and other recent results fill in knowledge gaps that existed at the time of the previous overview papers published nearly a decade ago by Tarter et al. (2007) and Scalo et al. (2007). In this review we provide a comprehensive picture of the current knowledge of M-dwarf planet occurrence and habitability based on work done in this area over the past decade, and summarize future directions planned in this quickly evolving field.
description: 44 pages, 11 figures, minor typesetting corrections made to match published version
Gerd Vonderach, Ruth Siebers, Ulrich Barr: Arbeitslosigkeit und Lebensgeschichte. Eine empirische Untersuchung unter jungen Langzeitarbeitslosen, Opladen: Leske + Bundrich, 1992, ISBN 3-8100-0988-1, 217 S., DM 49,-
Creators: name: Bolder, Axel
Publisher: name: Westdeutscher Verlag
Year: 2011
Subjects: subject: 300
subject: 650

description: Arbeit
An exploratory study of the influence of family history on male drink driving offenders in Victoria : implications for treatment and education programs
Creators: name: Prescott, Martin J.
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.
Integrated Transmission & Distribution System Modeling and Analysis: Need & Advantages
Creators: name: Jain, Himanshu
name: Rahimi, Kaveh
name: Tbaileh, Ahmad
name: Broadwater, Robert P.
name: Jain, Akshay Kumar
name: Dilek, Murat
Publisher: name: arXiv
Year: 2016
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The primary objective of this paper is to highlight the need for and benefits of studying the steady state and dynamic response of power systems using three phase integrated transmission and distribution (T&D) system models (hereafter referred to as hybrid models). Modeling and simulation requirements for building and analyzing hybrid models are also discussed. Finally, results from steady state and dynamic simulations of a large hybrid model are presented to demonstrate insights that can be obtained from hybrid models which cannot be obtained from the study of transmission and distribution systems separately.
description: 6 pages; This is the accepted version (not the IEEE-published version) of the paper that was accepted for presentation at the 2016 IEEE PES General Meeting, July 17-21, 2016. The IEEE published version of the paper can be obtained from ieeexplore using this url: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7741235&isnumber=7741056/
An Assessment of the Sustainability of Social Accountability Civic Engagement in Ensuring Good Governance and Participation: Adet Town
Creators: name: Tilahun, Eskender
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2015

description: Good governance is one of the pillars for rapid economic, social and political development. The FDRE in its countrywide strategic plans (PASDEP, currently GTP) highly emphasized the need to enhance community participation in policy formulation, planning, implementation, monitoring and evaluation. It comprised a range of interventions such as human development, democratization, enhancing peoples' participation, integrated capacity building, transparency and accountability. The sustainability of the social accountability civic engagements in creating citizens participation by using dialogue and interface meetings enhance citizen's participation in planning, monitoring and evaluation of basic public service and that in turn promote the service provision. However, insufficient state-citizen relationship, weak application of good governance, and social inclusion hinder the smooth flow of the service provision in Adet town. Sustainable participatory planning between communities and basic public service providers are still lacking in many of the sector offices. The performance of the service providers in providing quality service and good governance is not in a position to meet the need of service users. Therefore, the major purpose of the study was assessing the sustainability of social accountability civic engagements that ensure good governance, and how it will be institutionalize in the government reform agenda in the future. It also identified the major areas of problems in implementing the SA program related to service delivery and the SA civic engagements. The SA good practice and outcomes has to replicate to other non targeted woreda and kebeles as well as sector offices. The analysis was conducted by using a descriptive survey method by clustering the respondents in to citizens, local governments, service providers, partner organization and ESAP management agency. The sample is selected using judgmental sampling technique. To do this, the citizen's are first stratified in to youth; women, households, neglected, religious fathers and community representatives, then questionnaires were distributed to 250 citizens by using simple random sampling technique. Both primary and secondary data was used in the study. Moreover, structured and semi structured interviews and FGD were conducted to gather relevant information from key informant interview from service providers, local government, ESAP management agency officer and partner organization OPRIFS
Differentially Private Graph Classification with GNNs
Creators: name: Mueller, Tamara T.
name: Paetzold, Johannes C.
name: Prabhakar, Chinmay
name: Usynin, Dmitrii
name: Rueckert, Daniel
name: Kaissis, Georgios
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Graph Neural Networks (GNNs) have established themselves as the state-of-the-art models for many machine learning applications such as the analysis of social networks, protein interactions and molecules. Several among these datasets contain privacy-sensitive data. Machine learning with differential privacy is a promising technique to allow deriving insight from sensitive data while offering formal guarantees of privacy protection. However, the differentially private training of GNNs has so far remained under-explored due to the challenges presented by the intrinsic structural connectivity of graphs. In this work, we introduce differential privacy for graph-level classification, one of the key applications of machine learning on graphs. Our method is applicable to deep learning on multi-graph datasets and relies on differentially private stochastic gradient descent (DP-SGD). We show results on a variety of synthetic and public datasets and evaluate the impact of different GNN architectures and training hyperparameters on model performance for differentially private graph classification. Finally, we apply explainability techniques to assess whether similar representations are learned in the private and non-private settings and establish robust baselines for future work in this area.
Two-loop corrections to the $ρ$ parameter in Two-Higgs-Doublet Models
Creators: name: Hessenberger, Stephan
name: Hollik, Wolfgang
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Models with two scalar doublets are among the simplest extensions of the Standard Model which fulfill the relation $ρ= 1$ at lowest order for the $ρ$ parameter as favored by experimental data for electroweak observables allowing only small deviations from unity. Such small deviations $Δρ$ originate exclusively from quantum effects with special sensitivity to mass splittings between different isospin components of fermions and scalars. In this paper the dominant two-loop electroweak corrections to $Δρ$ are calculated in the $CP$-conserving THDM, resulting from the top-Yukawa coupling and the self-couplings of the Higgs bosons in the gauge-less limit. The on-shell renormalization scheme is applied. With the assumption that one of the $CP$-even neutral scalars represents the scalar boson observed by the LHC experiments, with standard properties, the two-loop non-standard contributions in $Δρ$ can be separated from the standard ones. These contributions are of particular interest since they increase with mass splittings between non-standard Higgs bosons and can be additionally enhanced by $\tanβ$ and $λ_5$, an additional free coefficient of the Higgs potential, and can thus modify the one-loop result substantially. Numerical results are given for the dependence on the various non-standard parameters, and the influence on the calculation of electroweak precision observables is discussed.
description: 23 pages, 17 figures, extended results section, version accepted for publication in EPJ-C
Zur Strukturchemie von Approximanten ikosaedrischer Quasikristalle vom Mackay-Ikosaeder-Typ
Creators: name: Schäpers, Melanie
Publisher: name: Universität Dortmund
Year: 2002
Subjects: subject: Quasikristalle
subject: Approximanten
subject: Mackay Ikosaeder
subject: Aluminium
subject: Palladium
subject: Gallium
subject: Magnesium
subject: quasicrytsals
subject: approximants
subject: Mackay Ikosahedra
subject: Aluminum
subject: 540

description: Im Rahmen dieser Arbeit wurden insgesamt sieben Approximanten ikosaedrischer Quasikristalle vom Mackay-Ikosaeder-Typ in den Systemen Al-Mg-Pd, Ga-Mg-Pd sowie Al-Ga-Mg-Pd dargestellt und anhand von Einkristallstrukturuntersuchungen mittels Röntgenbeugung charakterisiert. Neben der Darstellung neuer Approximanten, die für das tiefergehende Verständnis der 1984 von Shechtman et al. entdeckten Quasikristalle nachwievor unerläßlich sind, wurden auch struktur- bzw. verbindungsbildende Faktoren, wie z. B. die Valenzelektronenkonzentration oder der Austausch bestimmter Atomsorten (hier Aluminium und Gallium) analysiert, um so zu einer Ableitung von Existenzfeldern für Quasikristalle und Approximanten des Mackay-Ikosaeder-Typs zu kommen.
Ultrafast dynamics of electrons and phonons: from the two-temperature model to the time-dependent Boltzmann equation
Creators: name: Caruso, Fabio
name: Novko, Dino
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The advent of pump-probe spectroscopy techniques paved the way to the exploration of the ultrafast dynamics of electrons and phonons in crystalline solids. Following photo-absorption of a pump pulse and the initial electronic thermalization, the dynamics of electronic and vibrational degrees of freedom is dominated by electron-phonon and phonon-phonon scattering processes.The two-temperature model (TTM) and its generalizations -- as, e.g., the non-thermal lattice model (NLM) -- provide valuable tools to describe these phenomena and the ensuing coupled electron-phonon dynamics over timescales ranging between few hundreds of femtoseconds and tens of picoseconds. While more sophisticated theoretical approaches are nowadays available, the conceptual and computational simplicity of the TTM makes it the method of choice to model thermalization processes in pump-probe spectroscopy, and it keeps being widely applied in both experimental and theoretical studies. In the domain of ab-initio methods, the time-dependent Boltzmann equation (TDBE) ameliorates many of the shortcomings of the TTM and it enables a realistic and parameter-free description of ultrafast phenomena with full momentum resolution. After a pedagogical introduction to the TTM and TDBE, in this manuscript we review their application to the description of ultrafast process in solid-state physics and materials science as well as their theoretical foundation.
Das RICH-Multiplizitätsveto-System für das HERA-B Experiment
Creators: name: Cruse, Carsten
Publisher: name: Universität Dortmund
Year: 2002
Subjects: subject: HERA-B experiment
subject: veto-system
subject: Multiplicity-veto-system
subject: Interaction-trigger
subject: HERA-B Experiment
subject: Veto-System
subject: Multiplizitätsveto-System
subject: Hardware-Wechselwirkungstrigger
subject: 530

description: Das HERA-B Experiment am Deutschen Elektronen-Synchrotron (DESY) in Hamburg dient der Untersuchung einiger Vorhersagen des Standardmodells der Teilchenphysik auf dem Gebiet der Quantenchromodynamik. Es handelt sich um ein Hochratenexperiment, bei dem alle 96ns Protonen mit Nukleonen eines feststehenden Targets kollidieren. Die dabei entstehenden Teilchen werden im HERA-B Detektor nachgewiesen. Die Datenrate des Detektors liegt in der Größenordnung von TByte/s. Es wird ein hoch effizientes Triggersystem und eine gute Ereignisrekonstruktion benötigt. Treten viele gleichzeitige Wechselwirkungen auf, führt dies zu einer Belastung des Triggersystems und zur Verunreinigung der getriggerten Daten. In diser Arbeit wird ein Veto-System auf der Basis der Treffermultiplizität im RICH-Subdetektor vorgestellt, mit dem Ereignisse mit vielen gleichzeitigen Wechselwirkungen unterdrückt werden. Die Entwicklung, der Test des Systems und die Installation wird beschrieben sowie die Effizienz des Systems präsentiert.