cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
TEACHING ENGLISH AS A SOCIAL PRACTICE: A PRACTICAL GUIDE
Creators: name: Kepe, Mzukisi
Publisher: name: figshare
Year: 2021
Subjects: subject: Art
subject: 200401 Applied Linguistics and Educational Linguistics
subject: FOS: Languages and literature
subject: Linguistics
subject: 200405 Language in Culture and Society (Sociolinguistics)

description: Pupils lack the joys and delights of literacy, whilst pressured into learning by memorisation (rote). Such examples are: initiating discussions with the schoolteacher, developing essential or analytical observations regarding their surroundings and elements, whilst discovering text inter?connectedness, possibly achieved through reading. Numerous teachers are perceived as unsure concerning generating a need amongst learners to focus on instructions. This study demonstrates poetry as a solution for this challenge. The study focusses on ways, teaching English as a social practice, using a literacy process observation amongst High School De Vos Malan’s pupils in King Williams Town in the Province of the Eastern Cape, South Africa. The “Atwell Reading Workshop” is used for data collection. The study is identified, using a qualitative and interpretive approach. This study concentrates on four reading alleviations workshops: Reading and interpreting a selected book, scheduled at specific times in the chosen educational institute; fundamental inspiration; observing the literacy progression; poetry reading and involvement of pupils. This study is informed by “Foucault’s Critical Discourse Analysis”, representing a theoretical framework. This research shows that no other literature type can be equal to that of poetry teaching. Poetry teaching represents expressions, meticulous intense wording, the significance of a nonfictional opinion, dialogue forms and the prominence thereof, the splendour of allegorical linguistics and therefore the necessity of correct punctuation and descriptive linguistics
It Starts With a Story! Towards Extensive Reading
Creators: name: Kepe, Mzukisi
Publisher: name: figshare
Year: 2021
Subjects: subject: Art
subject: 200401 Applied Linguistics and Educational Linguistics
subject: FOS: Languages and literature
subject: Linguistics

description: Many educationists have noted that learners learn to read by reading — much in the same way as they learn any other skill: by doing it and enjoying what they do. This one-year intrinsic case study of Bulembu Lower & Higher Primary School focused on six intermediate phase pupils (Grades 4 to 6). The paper reports on the use of an enhanced Extensive Reading (ER) project aiming to improve learners’ literacy. The study was conducted through resource-auditing, pre?post case study interviews, and providing plenty of opportunities to access reading materials that pupils enjoy reading in a relaxed atmosphere such as fairy tales, folk tales, novels, plays, poetry and media journals (print, audio & visual). The study generated video recordings, classroom corner libraries, translatability, book reports, continuous assessment, long-term intrinsic motivation for reading, and a comprehensive extensive reading project report. Theoretically, the social constructivist theory, in line with Project-Based Learning (PBL) as a holistic framework, informed the study. The study has already revealed that if English First Additional Language learners (EFAL) read age-appropriate, attractive, contemporary reading material, and follow various strategies, their communication skills and academic reading and writing competence will improve.
Quantum synapse for cold atoms
Creators: name: Kouzaev, G. A.
name: Sand, K. J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper, the quantum synaptic effect is studied that arisen in the system of two crossed wires excited by the static (DC) and radio-frequency (RF) currents. The potential barrier between the two orthogonal atom streams is controlled electronically and the atoms can be transferred from one wire to another under certain critical values of the RF and DC currents. The results are interesting in the study of quantum interferometry and quantum registering of cold atoms.
description: 3 figures
Regulating State Aid: Inter-jurisdictional competition, public choice, and corporate governance
Creators: name: Hanke, Philip Cosmo <1983>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2014
Subjects: SECS-P/02 Politica economica

description: Depending on the regulatory regime they are subject to, governments may or may not be allowed to hand out state aid to private firms. The economic justification for state aid can address several issues present in the competition for capital and the competition for transfers from the state.
First, there are principal-agent problems involved at several stages.  Self-interested politicians might enter state aid deals that are the result of extensive rent-seeking activities of organized interest groups. Thus the institutional design of political systems will have an effect on the propensity of a jurisdiction to award state aid. 
Secondly, fierce competition for firm locations can lead to over-spending. This effect is stronger if the politicians do not take into account the entirety of the costs created by their participation in the firm location race. 
Thirdly, state aid deals can be incomplete and not in the interest of the citizens. This applies if there are no sanctions if firms do not meet their obligations from receiving aid, such as creating a certain number of jobs or not relocating again for a certain amount of time.
The separation of ownership and control in modern corporations leads to principal-agent problems on the side of the aid recipient as well. Managers might receive personal benefits from subsidies, the use of which is sometimes less monitored than private finance. This can eventually be to the detriment of the shareholders.
Overall, it can be concluded that state aid control should also serve the purpose of regulating the contracting between governments and firms. An extended mandate for supervision by the European Commission could include requirements to disincentive the misuse of state aid. The Commission should also focus on the corporate governance regime in place in the jurisdiction that awards the aid as well as in the recipient firm.
Adiabatic Duality: Duality of cosmological models with varying slow-roll parameter and sound speed
Creators: name: Shi, Jiaming
name: Fang, Zheng
name: Qiu, Taotao
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: There have been thousands of cosmological models for our early universe proposed in the literature, and many of them claimed to be able to give rise to scale-invariant power spectrum as was favored by the observational data. It is thus interesting to think about whether there are some relations among them, e.g., the duality relation. In this paper, we investigate duality relations between cosmological models in framework of general relativity (GR) , not only with varying slow-roll parameter $ε$, but also with sound speed $c_s$, which can then be understood as "adiabatic duality". Several duality relationships are formulated analytically and verified numerically. We show that models with varying $ε$ and constant $c_s$ can be dual in scalar spectral index, but not tensor one. On the other hand, allowing both $ε$ and $c_s$ to vary can make models dual in both scalar and tensor spectral indices.
description: 9 pages, 7 figures, title and context slightly changed, figures updated
A SWITCH FROM TRADITIONAL CLASSROOM TO REMOTE TEACHING AND LEARNING, A COERCED VIRTUAL PLANE!
Creators: name: Kepe, Mzukisi
Publisher: name: figshare
Year: 2021
Subjects: subject: Art
subject: Linguistics
subject: FOS: Languages and literature
subject: 200401 Applied Linguistics and Educational Linguistics
subject: 160805 Social Change
subject: FOS: Sociology
subject: 160808 Sociology and Social Studies of Science and Technology

description: The paradigm shift from the traditional classroom to remote teaching and learning situation because of a covid-19, a new normal, has seen several teachers and students coerced to a ‘virtual plane’. For this reason, this study seeks to explore the pros and cons of traditional and remote teaching. The central question has asked how the remote teaching experience has been compared to the usual classroom teaching and learning for both colleagues and students. I used reflexivity for diverse designs such as interviews and questionnaires for data collection. The study revealed that while the overall impact has been manageable, however, the general sentiment between colleagues and students is that traditional classroom instruction is the better method. The respondents agree that a switch from usual to remote teaching has not been easy. In addition, while online teaching and learning can simplify things for those who already used Blackboard Board, others had a lot to learn. This situation has been exacerbated by the fact that most black teachers and students come from less affluent schools and universities, who still collect printed assignments.
Design and VLSI implementation of a convolutional encoder and majority logic decoder for forward error correction in intrabuilding power line communications
Creators: name: Friedman, David
Publisher: name: University of British Columbia
Year: 2009

description: The need for simple and effective forward error correction (FEC) schemes for use in modern low-cost communication systems continues, especially for intrabuilding power line (IPL) communications. In particular, the use of short random error correcting convolutional codes with a moderate degree of interleaving has been shown to be a viable FEC option that enhances the performance of communications over the power line channel. In this thesis, a VLSI convolutional encoder and threshold decoder (codec) chip for use in intrabuilding power line communications was successfully designed, fabricated and tested. The chip implements the rate 1/2 (2, 1, 6) self-orthogonal convolutional code together with programmable degrees of interleaving = 1, 3, 5, 7). This code provides random and burst error correcting capabilities. Threshold or majority—logic decoding was selected as the algorithm to be used, due to the ease of its implementation and its appropriateness for burst error channels. Interleaving and deinterleaving can easily be included in the encoder and decoder, respectively. The codec is a semi-custom design that uses standard library cells, and was fabri cated using 1.2 1tm CMOS technology. A maximum throughput of 50 Mbps is feasible. Built-In Self-Test was incorporated into the design providing 100% single stuck-at fault coverage, with under 10% of silicon area overhead. To evaluate the effectiveness of the VLSI codec, the chip was integrated onto two existing power line modems. Performance tests were completed for coded and uncoded data transmissions under conditions of varying channel quality. This study successfully demonstrates that the use of this FEC chip is effective in increasing the error—free throughput of intrabuilding power line communications. The chip provides the possibility of maintaining reliable communications over channels that could otherwise not be used for data communications at 19.2 Kbps.
Power Converters and Electric Drives for Smart Grid Applications
Creators: name: Bonavoglia, Marco <1987>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2015
Subjects: ING-IND/32 Convertitori, macchine e azionamenti elettrici

description: The present dissertation aims to explore, theoretically and experimentally, the problems and the potential advantages of different types of power converters for “Smart Grid” applications, with particular emphasis on multi-level architectures, which are attracting a rising interest even for industrial requests.
The models of the main multilevel architectures (Diode-Clamped and Cascaded) are shown. The best suited modulation strategies to function as a network interface are identified. In particular, the close correlation between PWM (Pulse Width Modulation) approach and SVM (Space Vector Modulation) approach is highlighted.
An innovative multilevel topology called MMC (Modular Multilevel Converter) is investigated, and the single-phase, three-phase and "back to back" configurations are analyzed. Specific control techniques that can manage, in an appropriate way, the charge level of the numerous capacitors and handle the power flow in a flexible way are defined and experimentally validated.
Another converter that is attracting interest in “Power Conditioning  Systems” field is the “Matrix Converter”.  Even in this architecture, the output voltage is multilevel. It offers an high quality input current, a bidirectional power flow and has the possibility to control the input power factor (i.e. possibility to participate to active and reactive power regulations). The implemented control system, that allows fast data acquisition for diagnostic purposes, is described and experimentally verified.
The de.NBI / ELIXIR-DE Training Network
Creators: name: Wibberg, Daniel
Publisher: name: F1000 Research Limited
Year: 2019

description: The 'German Network for Bioinformatics Infrastructure' (de.NBI) provides bioinformatics services and training to users in life sciences research, industry and biomedicine. Training activities of de.NBI are focused on supporting and training end users. Life science researchers will thus be enabled to exploit their data more effectively by applying tools, standards and compute services provided by de.NBI. To effectively coordinate training courses of the consortium, de.NBI has established the Special Interest Group 3 (SIG3 - Training and Education) also known as the de.NBI training platform. SIG3 is composed of training experts from each de.NBI unit.
Different types of training activities are supported and organzied by de.NBI. First of all, the de.NBI summer schools provide training courses for undergraduate and graduate students in specific topics related to one or several de.NBI nodes. The respective nodes organize tool-specific training. These trainings can either be attached to existing conferences (where many of the potential training participants will attend anyhow) or organized independently. In addition, online training was introducted on the de.NBI website in 2016. Online training enables users first insights into bioinformatics tools. In addition to online training material, online hackathons for different software packages and webinars have been established by the service centers RBC and CIBI.
Between 2015 to 2018, the number and diversity of training activities have increased significantly (2015: 329 Participants - 17 courses; 2016: 882 Participants - 40 courses; 2017: 1,489 Participants - 69 courses; 2018: 1,520 Participants – 77 courses). Since 2017, the number of training events has reached a plateau at ~1,500 participants and ~70 courses, whereas the number of training courses at larger conferences was increased. To further increase the number of participants and courses as well as the visibility of the de.NBI network, de.NBI support training course of external partners, e.g. UKE Hamburg.
According to the recent administrative developments, Germany joined ELIXIR. The German ELIXIR Node will be run by de.NBI. As a result, de.NBI also joined the ELIXIR Training Platform and SIG 3 already started to establish collaborations with ELIXIR in training activities.
Modelling and analysis of networked control strategies in smart power distribution grids: development of co-simulation tools
Creators: name: Bottura, Riccardo <1986>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2015
Subjects: ING-IND/33 Sistemi elettrici per l'energia

description: This thesis is focused on Smart Grid applications in medium voltage distribution networks. For the development of new applications it appears useful the availability of simulation tools able to model dynamic behavior of both the power system and the communication network. Such a co-simulation environment would allow the assessment of the feasibility of using a given network technology to support communication-based Smart Grid control schemes on an existing segment of the electrical grid and to determine the range of control schemes that different communications technologies can support. For this reason, is presented a co-simulation platform that has been built by linking the Electromagnetic Transients Program Simulator (EMTP v3.0) with a Telecommunication Network Simulator (OPNET-Riverbed v18.0). The simulator is used to design and analyze a coordinate use of Distributed Energy Resources (DERs) for the voltage/var control (VVC) in distribution network. This thesis is focused control structure based on the use of phase measurement units (PMUs). In order to limit the required reinforcements of the communication infrastructures currently adopted by Distribution Network Operators (DNOs), the study is focused on leader-less MAS schemes that do not assign special coordinating rules to specific agents. Leader-less MAS are expected to produce more uniform communication traffic than centralized approaches that include a moderator agent. Moreover, leader-less MAS are expected to be less affected by limitations and constraint of some communication links. The developed co-simulator has allowed the definition of specific countermeasures against the limitations of the communication network, with particular reference to the latency and loss and information, for both the case of wired and wireless communication networks. Moreover, the co-simulation platform has bee also coupled with a mobility simulator in order to study specific countermeasures against the negative effects on the medium voltage/current distribution network caused by the concurrent connection of electric vehicles.
Baryons in the large N limit of the massive two-dimensional Nambu-Jona-Lasinio model
Creators: name: Boehmer, Christian
name: Karbstein, Felix
name: Thies, Michael
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Baryons in the massive Nambu-Jona-Lasinio model in 1+1 dimensions (the massive chiral Gross-Neveu model) are studied in the limit of an infinite number of flavors. The baryon mass is evaluated for a wide range of bare fermion masses and filling fractions, combining analytical asymptotic expansions with a full numerical Hartree-Fock calculation.
description: 12 pages, 15 figures; v2: minor corrections
Perturbative QCD Analysis of Near Threshold Heavy Quarkonium Photoproduction at Large Momentum Transfer
Creators: name: Sun, Peng
name: Tong, Xuan-Bo
name: Yuan, Feng
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We apply perturbative QCD to investigate the near threshold heavy quarkonium photoproduction at large momentum transfer. From an explicit calculation, we show that the conventional power counting method will be modified and the three quark Fock state with nonzero orbital angular momentum dominates the near threshold production. It carries a power behavior of $1/(-t)^5$ for the differential cross section. We further comment on the impact of our results on the interpretation of the experiment measurement in terms of the gluonic gravitational form factors of the proton.
description: fig.2 updated, references added; 6 pages, 3 figures
Quantum criticality in a double quantum-dot system
Creators: name: Zarand, Gergely
name: Chung, Chung-Hou
name: Simon, Pascal
name: Vojta, Matthias
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We discuss the realization of the quantum-critical non-Fermi liquid state, originally discovered within the two-impurity Kondo model, in double quantum-dot systems. Contrary to the common belief, the corresponding fixed point is robust against particle-hole and various other asymmetries, and is only unstable to charge transfer between the two dots. We propose an experimental set-up where such charge transfer processes are suppressed, allowing a controlled approach to the quantum critical state. We also discuss transport and scaling properties in the vicinity of the critical point.
description: 4 pages, 3 figs; (v2) final version as published
Aquinas Memorial Lectures Collection
Creators: name: Australian Catholic University Library,
name: Australian Catholic University Library
Publisher: name: Australian Catholic University
Year: 2015
Subjects: Australian Catholic University
Australian Catholic University Library
ACU
Lectures

description: The Aquinas Memorial Lectures date back to the 1940s. In March 1944, eleven years after the opening of the Aquinas Library, the inaugural Aquinas Lecture, entitled "Aquinas and Modern Practices of Interest Taking", was delivered by Mr John P. Kelly in the rooms of the Aquinas Library with the Chief Justice of Queensland, Sir William Webb, as Chairman. From then until 1950 an Aquinas Lecture was delivered each year. A new series of the Aquinas Memorial Lectures was established in 1979 by the Aquinas Library and continued by the Australian Catholic University McAuley Campus. The lecture series was originally published by Aquinas Press in Brisbane, the Aquinas Library from 1979 and then continued by the Australian Catholic University, McCauley Campus.
Magnetic focusing in normal-superconductor hybrid systems: a semiclassical analysis
Creators: name: Rakyta, P.
name: Kormanyos, A.
name: Kaufmann, Z.
name: Cserti, J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study a transverse electron-hole focusing effect in a normal-superconductor system. The spectrum of the quasiparticles is calculated both quantum mechanically and in semiclassical approximation, showing an excellent agreement. A semiclassical conductance formula is derived which takes into account the effect of electron-like as well as hole-like quasiparticles. At low magnetic field the semiclassical conductance shows characteristic oscillations due to the Andreev reflection, while at higher fields it goes to zero. These findigs are in line with the results of previous quantum calculations and with the expectations based on the classical dynamics of the quasiparticles.
description: 7 pages, 6 figures
Vortex Structure in Magnetic Nanodots: Dipolar Interaction, Mobile Spin Model, Phase Transition and Melting
Creators: name: Bailly-Reyre, Aurélien
name: Diep, Hung T.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study in this article properties of a nanodot embedded in a support by Monte Carlo simulation. The nanodot is a piece of simple cubic lattice where each site is occupied by a mobile Heisenberg spin which can move from one lattice site to another under the effect of the temperature and its interaction with neighbors. We take into account a short-range exchange interaction between spins and a long-range dipolar interaction. We show that the ground-state configuration is a vortex around the dot central axis: the spins on the dot boundary lie in the $xy$ plane but go out of plane with a net perpendicular magnetization at the dot center. Possible applications are discussed. Finite-temperature properties are studied. We show the characteristics of the surface melting and determine the energy, the diffusion coefficient and the layer magnetizations as functions of temperature.
description: To appear in J. Magnetism and Magnetic Materials
Classical and Quantum Chaos in Atom Optics
Creators: name: Saif, Farhan
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: The interaction of an atom with an electromagnetic field is discussed in the presence of a time periodic external modulating force. It is explained that a control on atom by electromagnetic fields helps to design the quantum analog of classical optical systems. In these atom optical systems chaos may appear at the onset of external fields. The classical and quantum chaotic dynamics is discussed, in particular in an atom optics Fermi accelerator. It is found that the quantum dynamics exhibits dynamical localization and quantum recurrences.
description: 105 pages, 14 figures
Quantization of Contact Manifolds and Thermodynamics
Creators: name: Rajeev, S. G.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: Symplectic Geometry (math.SG)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The physical variables of classical thermodynamics occur in conjugate pairs such as pressure/volume, entropy/temperature, chemical potential/particle number. Nevertheless, and unlike in classical mechanics, there are an odd number of such thermodynamic co-ordinates. We review the formulation of thermodynamics and geometrical optics in terms of contact geometry. The Lagrange bracket provides a generalization of canonical commutation relations. Then we explore the quantization of this algebra by analogy to the quantization of mechanics. The quantum contact algebra is associative, but the constant functions are not represented by multiples of the identity: a reflection of the classical fact that Lagrange brackets satisfy the Jacobi identity but not the Leibnitz identity for derivations. We verify that this `quantization' describes correctly the passage from geometrical to wave optics as well. As an example, we work out the quantum contact geometry of odd-dimensional spheres.
description: Additional references; typos fixed; a clarifying remark added
Aspects of Bi₂Sr₂Ca₂Cu₃O on silicon bolometer fabrication and operation
Creators: name: Zindler, Ryan Walter
Publisher: name: University of British Columbia
Year: 2008

description: Preliminary work to the production of a Bi₂Sr₂Ca₂Cu₃Oy superconducting bolometer was done. An analysis of the noise performance of Bi₂Sr₂Ca₂Cu₃Oy thin films was done with particular attention to the character and magnitude of 1/f noise in the material. Deposition of Bi₂Sr₂Ca₂Cu₃Oy onto a silicon substrate was attempted through different methods of producing a barrier between the Bi₂Sr₂Ca₂Cu₃Oy and the chemically corrupting silicon. The buffer layers would not endure the high temperature processing required to produce Bi₂Sr₂Ca₂Cu₃Oy films without cracking or peeling. A mixed buffer layer scheme was used in order to minimize the thermal stresses between the different layers. In situ processing of Bi₂Sr₂Ca₂Cu₃Oy was attempted in order to eliminate the high temperature annealing step of the Bi₂Sr₂Ca₂Cu₃Oy. Finally, epitaxial buffer layers were grown in order to strengthen the buffer layer against the thermal stresses.
Crises and digital changeover as a source of disruption for business: trends and perspectives in Top Management
Creators: name: Castaldo, Francesca
name: Gatti, Mauro
Publisher: name: Department of Economics and Business Studies, University of Genoa
Year: 2021
Subjects: Organization

description: Economic and financial collapses, like 2008 Recession or current COVID-19 pandemic crisis, along with the ongoing digital transformation, constitute a significant source of disruption for business, representing a technological and cultural shift, and leading both, strategic and operational change. In the immediate post crisis, we have witnessed a spasmodic search for business solutions that appeared innovative in all sectors: new business models thus began to take hold. New models call new performance measurements: in the space of just few months of the recession start, indicators went from being centred on long term profitability to cash flow optimisation. In this context, more than ever before, companies need to integrated Information Systems capable of quick performance measuring. The CFO traditionally plays an increasing strategic role to create new business models. But even more prominent inside the C-Suite is the role of the CIO, today an Executive at the cutting edge of innovation and driver of business growth.
Capturing the Fire: Flame Energetics and Neutronizaton for Type Ia Supernova Simulations
Creators: name: Calder, A. C.
name: Townsley, D. M.
name: Seitenzahl, I. R.
name: Peng, F.
name: Messer, O. E. B.
name: Vladimirova, N.
name: Brown, E. F.
name: Truran, J. W.
name: Lamb, D. Q.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We develop and calibrate a realistic model flame for hydrodynamical simulations of deflagrations in white dwarf (Type Ia) supernovae. Our flame model builds on the advection-diffusion-reaction model of Khokhlov and includes electron screening and Coulomb corrections to the equation of state in a self-consistent way. We calibrate this model flame--its energetics and timescales for energy release and neutronization--with self-heating reaction network calculations that include both these Coulomb effects and up-to-date weak interactions. The burned material evolves post-flame due to both weak interactions and hydrodynamic changes in density and temperature. We develop a scheme to follow the evolution, including neutronization, of the NSE state subsequent to the passage of the flame front. As a result, our model flame is suitable for deflagration simulations over a wide range of initial central densities and can track the temperature and electron fraction of the burned material through the explosion and into the expansion of the ejecta.
description: 21 pages, 24 figures, to appear in ApJ
L’impatto del Covid-19 sul turismo in Italia: passato, presente e futuro
Creators: name: Angeloni, Silvia
Publisher: name: Department of Economics and Business Studies, University of Genoa
Year: 2021
Subjects: Accounting and Business Adm.

description: The research intends to quantify and qualify the severity of the impact of Covid-19 on the Italian tourist destination. The current context is depicted on the base of recent international and national surveys, and it is the starting point for thinking about the future of tourism, without ignoring the past. Therefore, desirable paths of resilience are proposed to secure not only travellers, but also tourism businesses and territories, which constitute a great economic, social, historical, and cultural heritage of Italy.
Dynamical determination of the Kuiper Belt's mass from motions of the inner planets of the Solar System
Creators: name: Iorio, Lorenzo
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: In this paper we dynamically determine the mass of the Kuiper Belt Objects by exploiting the latest observational determinations of the orbital motions of the inner planets of the Solar System. Our result, in units of terrestrial masses, is 0.033 +/- 0.115 by modelling the Classical Kuiper Belt Objects as an ecliptic ring of finite thickness. A two-rings model yields for the Resonant Kuiper Belt Objects a value of 0.018 +/- 0.063. Such figures are consistent with recent determinations obtained with ground and space-based optical techniques. Some implications for precise tests of Einsteinian and post-Einsteinian gravity are briefly discussed.
description: LaTex, 12 pages, no figures, 4 tables, 27 references. One reference added. To appear in Monthly Notices of the Royal Astronomical Society
Stability of Five-dimensional Myers-Perry Black Holes with Equal Angular Momenta
Creators: name: Murata, Keiju
name: Soda, Jiro
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the stability of five-dimensional Myers-Perry black holes with equal angular momenta which have an enlarged symmetry, U(2). Using this symmetry, we derive master equations for a part of metric perturbations which are relevant to the stability. Based on the master equations, we prove the stability of Myers-Perry black holes under these perturbations. Our result gives a strong evidence for the stability of Myers-Perry black holes with equal angular momenta.
description: 22 pages, 3 figures
Final state interactions in B --> pi pi K and B--> K antiK K decays
Creators: name: Lesniak, L.
name: Furman, A.
name: Kaminski, R.
name: El-Bennich, B.
name: Loiseau, B.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Analysis of charged and neutral B meson decays into pi+ pi- K, K+ K- K and K0S K0S K0S is performed using a unitary representation of the pi pi and K anti- K final state interactions. Comparison of the theoretical model with the experimental data of the Belle and BaBar Collaborations indicates that charming penguin contributions are necessary to describe the B --> f0(980) K and B --> rho(770) K decays.
description: 4 pages, 3 figures, contribution to MESON 2006, 9-th International Workshop on Meson Production, Properties and Interaction, Krakow, Poland, 9 - 13 June 2006
Supplementary Material for Son et al., 2019
Creators: name: Son, Jae Hak
name: Kohlbrenner, Tea
name: Svenia Heinze
name: Beukeboom, Leo
name: Bopp, Daniel
name: Meisel, Richard P.
Publisher: name: Figshare
Year: 2019
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Supplementary information for Son et al. 2019 submission to Genetics: "Minimal effects of proto-Y chromosomes on house fly gene expression in spite of evidence that selection maintains stable polygenic sex determination."
Lie Algebroids in Classical Mechanics and Optimal Control
Creators: name: Martinez, Eduardo
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: Differential Geometry (math.DG)
subject: Optimization and Control (math.OC)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We review some recent results on the theory of Lagrangian systems on Lie algebroids. In particular we consider the symplectic and variational formalism and we study reduction. Finally we also consider optimal control systems on Lie algebroids and we show how to reduce Pontryagin maximum principle.
description: This is a contribution to the Proc. of workshop on Geometric Aspects of Integrable Systems (July 17-19, 2006; Coimbra, Portugal), published in SIGMA (Symmetry, Integrability and Geometry: Methods and Applications) at http://www.emis.de/journals/SIGMA/
Generation of wave packets and breathers by oscillating kinks in the sine-Gordon system
Creators: name: Bogdan, M. M.
name: Charkina, O. V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: Evolution of the nonequilibrium inhomogeneities and topological defects is studied in terms of complex kink solutions of the sine-Gordon equation. The weakly damped oscillation of the sine-Gordon kink, named as the kink quasimode, is described explicitly. It is shown that the oscillatory kink behavior and the wave packet generation depend significantly on the initial nonequilibrium kink profile. In order to specify conditions of the generation of wobbling kinks with a multibreather structure we reformulate the direct scattering problem associated with the SG equation as the spectral problem of the Schrödinger operator. We obtain the dependence of the radiation energy, which is emitted during formation of the multi-frequency wobbling kink, on the effective dimension of its initial profile.
description: 25 pages, 9 figures
A Preliminary Phonetic and Phonological Analysis of Mixtec
Creators: name: Faraclas, Nicholas
name: Hinton, Leanne
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2020
Subjects: Chalcatongo de Hidalgo Mixtec language

description: Class paper, photocopy of typed original, with instructor's handwritten comments. Bottoms of pages cut off in photocopy.
Improved iterative quantum algorithm for ground-state preparation
Creators: name: Liang, Jin-Min
name: Lv, Qiao-Qiao
name: Shen, Shu-Qian
name: Li, Ming
name: Wang, Zhi-Xi
name: Fei, Shao-Ming
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Finding the ground state of a Hamiltonian system is of great significance in many-body quantum physics and quantum chemistry. We propose an improved iterative quantum algorithm to prepare the ground state of a Hamiltonian. The crucial point is to optimize a cost function on the state space via the quantum gradient descent (QGD) implemented on quantum devices. We provide practical guideline on the selection of the learning rate in QGD by finding a fundamental upper bound and establishing a relationship between our algorithm and the first-order approximation of the imaginary time evolution. Furthermore, we adapt a variational quantum state preparation method as a subroutine to generate an ancillary state by utilizing only polylogarithmic quantum resources. The performance of our algorithm is demonstrated by numerical calculations of the deuteron molecule and Heisenberg model without and with noises. Compared with the existing algorithms, our approach has advantages including the higher success probability at each iteration, the measurement precision-independent sampling complexity, the lower gate complexity, and only quantum resources are required when the ancillary state is well prepared.
description: 12 pages,7 figures
The G-dwarf distribution in star-forming galaxies: a tug-of-war between infall and outflow
Creators: name: Spitoni, E.
name: Calura, F.
name: Aguirre, V. Silva
name: Gilli, R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: In the past, the cumulative metallicity distribution function (CMDF) turned out as a useful tool to constrain the accretion history of various components of the Milky Way. In this Letter, by means of analytical, leaky-box chemical evolution models (i.e. including both infall and galactic outflows) we study the CMDF of local star-forming galaxies that follow two fundamental empirical scaling relations, namely the mass-metallicity and main sequence relations. Our analysis shows that galactic winds, which are dominant mostly in low-mass systems, play a fundamental role in shaping this function and, in particular, in determining its steepness and curvature. We show that the CMDF of low-mass (M$_{\star}$/M$_{\odot} \le 10^{9.5}$) and high-mass (M$_{\star}$/M$_{\odot}$>10$^{10.5}$) galaxies deviate substantially from the results of a 'closed-box' model, as the evolution of the former (latter) systems is mostly dominated by outflows (infall). In the context of galactic downsizing, we show that downward-concave CMDFs (associated with systems with extremely small infall timescales and with very strong winds) are more frequent in low-mass galaxies, which include larger fractions of young systems and present more substantial deviations from equilibrium between gas accretion and reprocessing (either via star formation or winds).
description: Accepted for publication in Astronomy and Astrophysics Letters (A&A Letters), 6 pages, 4 figures
Study of energy response and resolution of the ATLAS Tile Calorimeter to hadrons of energies from 16 to 30 GeV
Creators: name: Abdallah, Jalal
name: Angelidakis, Stylianos
name: Arabidze, Giorgi
name: Atanov, Nikolay
name: Bernhard, Johannes
name: Bonnefoy, Romeo
name: Bossio, Jonathan
name: Bouabid, Ryan
name: Carrio, Fernando
name: Davidek, Tomas
name: Dubovsky, Michal
name: Fiorini, Luca
name: Aparisi, Francisco Brandan Garcia
name: Carli, Tancredi
name: Gerbershagen, Alexander
name: Goksu, Hazal
name: Hadavand, Haleh
name: Harkusha, Siarhei
name: Hlaluku, Dingane
name: Hibbard, Michael James
name: Hildebrand, Kevin
name: Jejelava, Juansher
name: Kamenshchikov, Andrey
name: Kazakos, Stergios
name: Kello, Tomas
name: Korolkov, Ilya
name: Kulchitsky, Yuri
name: Lazar, Hadar
name: Lekalakala, Nthabiseng
name: Little, Jared
name: Madar, Romain
name: Manen, Samuel
name: Martins, Filipe
name: Masuku, Thabo
name: Minashvili, Irakli
name: Mkrtchyan, Tigran
name: Mlynarikova, Michaela
name: Moayedi, Seyedali
name: Nemecek, Stanislav
name: Nodulman, Lawrence
name: Oganezov, Robert
name: Olsson, Mats Joakim Robert
name: Oreglia, Mark
name: Pani, Priscilla
name: Paramonov, Alexander
name: Pottgen, Ruth
name: Reid, Tres
name: Bosca, Sergi Rodriguez
name: Perez, Andrea Rodriguez
name: Rosten, Rachel Christine
name: Saha, Puja
name: Santoni, Claudio
name: Sargsyan, Laura
name: Schaefer, Douglas Michael
name: Shalanda, Nikolay
name: Smith, Andrew Caldon
name: Solodkov, Alexander
name: Solovyanov, Oleg
name: Starovoitov, Pavel
name: Starchenko, Evgeny
name: Tas, Petr
name: Tereshchenko, Viacheslav
name: Tlou, Sijiye Humphry
name: Ughetto, Michael
name: Uhliarova, Lea
name: Usai, Giulio
name: Santurio, Eduardo Valdes
name: Biot, Alberto Valero
name: Volpi, Guido
name: Zakareishvili, Tamar
name: Zuccarello, Pedro Diego
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Three spare modules of the ATLAS Tile Calorimeter were exposed to test beams from the Super Proton Synchrotron accelerator at CERN in 2017. The measurements of the energy response and resolution of the detector to positive pions and kaons and protons with energy in the range 16 to 30 GeV are reported. The results have uncertainties of few percent. They were compared to the predictions of the Geant4-based simulation program used in ATLAS to estimate the response of the detector to proton-proton events at Large Hadron Collider. The determinations obtained using experimental and simulated data agree within the uncertainties.
On finite presentability of group F/[M,N]
Creators: name: Kulikova, O. V.
name: Olshanskii, A. Yu.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20F05

description: The characterization of normal subgroups M, N of free group F for which the quotient group F/[M,N] is finitely presented is given.
description: 6 pages
Andreas Grüner, Venus ordinis. Der Wandel von Malerei und Literatur im Zeitalter der Bürgerkriege
Creators: name: Koch, Nadia J.
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Andreas Grüner, Venus ordinis. Der Wandel von Malerei und Literatur im Zeitalter der Bürgerkriege, Studien zur Geschichte und Kultur des Altertums N.F. 21, Paderborn/München/Wien/Zürich 2004. 307 S., 60 Abb.
description: Göttinger Forum für Altertumswissenschaft, Bd. 8 (2005): Göttinger Forum für Altertumswissenschaft
Effects of stochastic population fluctuations in two models of biological macroevolution
Creators: name: Murase, Yohsuke
name: Shimada, Takashi
name: Ito, Nobuyasu
name: Rikvold, Per Arne
Publisher: name: arXiv
Year: 2008
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: Two mathematical models of macroevolution are studied. These models have population dynamics at the species level, and mutations and extinction of species are also included. The population dynamics are updated by difference equations with stochastic noise terms that characterize population fluctuations. The effects of the stochastic population fluctuations on diversity and total population sizes on evolutionary time scales are studied. In one model, species can make either predator-prey, mutualistic, or competitive interactions, while the other model allows only predator-prey interactions. When the noise in the population dynamics is strong enough, both models show intermittent behavior and their power spectral densities show approximate $1/f$ fluctuations. In the noiseless limit, the two models have different power spectral densities. For the predator-prey model, $1/f^2$ fluctuations appears, indicating random-walk like behavior, while the other model still shows $1/f$ noise. These results indicate that stochastic population fluctuations may significantly affect long-time evolutionary dynamics.
description: 7 pages, 4 figures
Nonlinear perturbations of the Kaluza-Klein monopole
Creators: name: Bizoń, Piotr
name: Chmaj, Tadeusz
name: Gibbons, Gary
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the nonlinear stability of the Kaluza-Klein monopole viewed as the static solution of the five dimensional vacuum Einstein equations. Using both numerical and analytical methods we give evidence that the Kaluza-Klein monopole is asymptotically stable within the cohomogeneity-two biaxial Bianchi IX ansatz recently introduced in \cite{bcs}. We also show that for sufficiently large perturbations the Kaluza-Klein monopole loses stability and collapses to a Kaluza-Klein black hole. The relevance of our results for the stability of BPS states in M/String theory is briefly discussed.
description: 4 pages, 4 figures
Manfred Erren, P. Vergilius Maro, Georgica
Creators: name: Seng, Helmut
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Manfred Erren, P. Vergilius Maro, Georgica. Band 2: Kommentar. Heidelberg (Winter) 2003 (= Wissenschaftliche Kommentare zu Griechischen und Lateinischen Schriftstellern). XXX, 1003 S.
description: Göttinger Forum für Altertumswissenschaft, Bd. 8 (2005): Göttinger Forum für Altertumswissenschaft
Partonic flow and $ϕ$-meson production in Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV
Creators: name: Abelev, B. I.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We present first measurements of the $ϕ$-meson elliptic flow ($v_{2}(p_{T})$) and high statistics $p_{T}$ distributions for different centralities from $\sqrt{s_{NN}}$ = 200 GeV Au+Au collisions at RHIC. In minimum bias collisions the $v_{2}$ of the $ϕ$ meson is consistent with the trend observed for mesons. The ratio of the yields of the $Ω$ to those of the $ϕ$ as a function of transverse momentum is consistent with a model based on the recombination of thermal $s$ quarks up to $p_{T}\sim 4$ GeV/$c$, but disagrees at higher momenta. The nuclear modification factor ($R_{CP}$) of $ϕ$ follows the trend observed in the $K^{0}_{S}$ mesons rather than in $Λ$ baryons, supporting baryon-meson scaling. Since $ϕ$-mesons are made via coalescence of seemingly thermalized $s$ quarks in central Au+Au collisions, the observations imply hot and dense matter with partonic collectivity has been formed at RHIC.
description: 6 pages, 4 figures, submit to PRL
Franz Alto Bauer – Norbert Zimmermann, (Hrsg.), Epochenwandel? Kunst und Kultur zwischen Antike und Mittelalter
Creators: name: Arbeiter, Achim
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Franz Alto Bauer – Norbert Zimmermann, (Hrsg.), Epochenwandel? Kunst und Kultur zwischen Antike und Mittelalter. Sonderbände der Antiken Welt; Zaberns Bildbände zur Archäologie. Mainz am Rhein: von Zabern 2001. V + 135 S., 156 Farb-, 50 sw-Abb.
description: Göttinger Forum für Altertumswissenschaft, Bd. 8 (2005): Göttinger Forum für Altertumswissenschaft