cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Il liquido rosso: riflessioni sul sangue da Macbeth a Paul Valery
Creators: name: Giacobbe Borelli, Maia
Publisher: name: Dipartimento delle Arti - Alma Mater Studiorum - Università di Bologna
Year: 2014

description: Abstract – IT
La proposta di riflessione esamina concetti e pratiche connesse con le contemporanee rappresentazioni - siano esse artistiche, fotografiche, teatrali o mediatiche in genere - di corpi colpiti da morti violente, insanguinati ed esangui, e vuole cogliere cosa rappresenti la visione reiterata di carne e sangue nell’ambito del vasto immaginario dello spettacolo contemporaneo. Negli esempi citati si mostra la reversibilità tra realtà e finzione che sussiste nello spettatore colto nell’azione di guardare il sangue, vero o finto che sia, che sgorga durante la rappresentazione. Le immagini saranno confrontate con testi letterari sullo stesso argomento, scritti nella prima metà del secolo scorso (Paul Valéry, Antonin Artaud, Jean Genet, Thomas S. Eliot) ma anche con il Macbeth di Shakespeare nell’interpretazione di Carmelo Bene del 1983.

Abstract – EN
This reflection proposal wishes to examine concepts and pratices connected with contemporary performances - artistic, photographic, theatrical or media - about bodies hit by violent death, bloody and wan, and means to get what reiterate vision of flesh and blood represents in contemporary performing arts. Reversibility between reality and fiction, which subsist in the spectator picked observing blood - real or fake - poured during the show is shown through quoted examples. Images will be compared to literary texts concerning the same topic, written in the first half of the 20th century (Paul Valéry, Antonin Artaud, Jean Genet, Thomas S. Eliot), and to the re-interpretation of Shakespeare's Macbeth by Carmelo Bene (1983).
description: Antropologia e Teatro. Rivista di Studi, No 5 (2014)
Figure S1. Fault motion reversals predating the Mw 6.3 2009 Lâ€™Aquila earthquake: Insights from synthetic aperture radar data
Creators: name: Mazzoli, Stefano
name: Nardò, Sergio
name: Ascione, Alessandra
name: Donato, Valentino Di
name: Terranova, Carlo
name: Vilardo, Giuseppe
Publisher: name: Geological Society of London
Year: 2021
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: Figure S1: The Synthetic Aperture Radar satellites viewing geometry.
Additional file 1 of Assessment of CuFeSe2 ternary nanozymes for multimodal triple negative breast cancer theranostics
Creators: name: Yang, Chunmei
name: Li, Lihong
name: Li, Mingdong
name: Shu, Yue
name: Luo, Yiping
name: Gu, Didi
name: Zhu, Xin
name: Chen, Jing
name: Yang, Lu
name: Shu, Jian
Publisher: name: figshare
Year: 2025
Subjects: Biochemistry
Space Science
Medicine
Pharmacology
Information Systems not elsewhere classified
Cancer
Hematology

description: Supplementary Material 1
Design of an intelligent lisp cai tutor
Creators: name: Fine, Gary
Publisher: name: University of British Columbia
Year: 2010

description: Recent developments in interactive Computer-Aided -Instruction and in Artificial Intelligence have enabled teaching machines and programs to deal reasonably effectively with the subject matter to be taught. Presented herein is a proposal and design for an intelligent LISP teaching machine. It is expected that such a system would be used in conjunction with other conventional methods to teach students, with some prior programming knowledge, the LISP programming language and "correct" programming style. With the belief that procedural knowledge is best learned by 'doing', this CAI system will integrate instruction in concepts, LISP syntax and semantics; instruction in the design of LISP functions and code; and analysis of students' solutions and consequent error correction. The goal of this LISP tutor is simply to act like a human tutor - cognizant of what the student is doing all the time, and able to provide advice and give direction where necessary.
Dynamic index selection in data warehouses
Creators: name: Azefack, Stéphane
name: Aouiche, Kamel
name: Darmont, Jérôme
Publisher: name: arXiv
Year: 2008
Subjects: subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: Analytical queries defined on data warehouses are complex and use several join operations that are very costly, especially when run on very large data volumes. To improve response times, data warehouse administrators casually use indexing techniques. This task is nevertheless complex and fastidious. In this paper, we present an automatic, dynamic index selection method for data warehouses that is based on incremental frequent itemset mining from a given query workload. The main advantage of this approach is that it helps update the set of selected indexes when workload evolves instead of recreating it from scratch. Preliminary experimental results illustrate the efficiency of this approach, both in terms of performance enhancement and overhead.
Enhancing Trajectory Prediction using Sparse Outputs: Application to Team Sports
Creators: name: Victor, Brandon
name: Nibali, Aiden
name: He, Zhen
name: Carey, David L.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: I.2.6

description: Sophisticated trajectory prediction models that effectively mimic team dynamics have many potential uses for sports coaches, broadcasters and spectators. However, through experiments on soccer data we found that it can be surprisingly challenging to train a deep learning model for player trajectory prediction which outperforms linear extrapolation on average distance between predicted and true future trajectories. We propose and test a novel method for improving training by predicting a sparse trajectory and interpolating using constant acceleration, which improves performance for several models. This interpolation can also be used on models that aren't trained with sparse outputs, and we find that this consistently improves performance for all tested models. Additionally, we find that the accuracy of predicted trajectories for a subset of players can be improved by conditioning on the full trajectories of the other players, and that this is further improved when combined with sparse predictions. We also propose a novel architecture using graph networks and multi-head attention (GraN-MA) which achieves better performance than other tested state-of-the-art models on our dataset and is trivially adapted for both sparse trajectories and full-trajectory conditioned trajectory prediction.
description: 10 pages (not including references), 7 figures. Published in Neural Computing and Applications on 20 March 2021
High-probability quantum state transfer among nodes of an open XXZ spin chain
Creators: name: Fel'dman, E. B.
name: Zenchuk, A. I.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: This paper concerns the problem of the high probability state transfer among $2^s$ symmetrically placed nodes of the $N$-nodes spins 1/2 chain with the ${XXZ}$ Hamiltonian. We consider examples with $(N,s)=(4,4)$, $(N,s)=(6,4)$ and $(N,s)=(8,8)$.
description: 19 pages, 11 figures
Duckworth-Lewis-Stern Method Comparison with Machine Learning Approach
Creators: name: Abbas, Kumail
name: Haider, Sajjad
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: This work presents an analysis of the Duckworth-Lewis-Stern (DLS) method for One Day International (ODI) cricket matches. The accuracy of the DLS method is compared against various supervised learning algorithms for result prediction. The result of a cricket match is predicted during the second inning. The paper also optimized DLS resource table which is used in the Duckworth-Lewis (D/L) formula to increase its predictive power. Finally, an Unpredictability Index is developed that ranks different cricket playing nations according to how unpredictable they are while playing an ODI match.
description: The paper has been published in the conference of Frontiers of Information Technology 2019
Spin-lasing in bimodal quantum dot micropillar cavities
Creators: name: Heermeier, Niels
name: Heuser, Tobias
name: Große, Jan
name: Jung, Natalie
name: Kaganskiy, Arsenty
name: Lindemann, Markus
name: Gerhardt, Nils C.
name: Hofmann, Martin R.
name: Reitzenstein, Stephan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Spin-controlled lasers are highly interesting photonic devices and have been shown to provide ultra-fast polarization dynamics in excess of 200 GHz. In contrast to conventional semiconductor lasers their temporal properties are not limited by the intensity dynamics, but are governed primarily by the interaction of the spin dynamics with the birefringent mode splitting that determines the polarization oscillation frequency. Another class of modern semiconductor lasers are high-beta emitters which benefit from enhanced light-matter interaction due to strong mode confinement in low-mode-volume microcavities. In such structures, the emission properties can be tailored by the resonator geometry to realize for instance bimodal emission behavior in slightly elliptical micropillar cavities. We utilize this attractive feature to demonstrate and explore spin-lasing effects in bimodal high-beta quantum dot micropillar lasers. The studied microlasers with a beta-factor of 4% show spin-laser effects with experimental polarization oscillation frequencies up to 15 GHz and predicted frequencies up to about 100 GHz which are controlled by the ellipticity of the resonator. Our results reveal appealing prospects for very compact, ultra-fast and energy-efficient spin-lasers and can pave the way for future purely electrically injected spin-lasers enabled by short injection path lengths.
Capturing Event Argument Interaction via A Bi-Directional Entity-Level Recurrent Decoder
Creators: name: Xi, Xiangyu
name: Ye, Wei
name: Zhang, Shikun
name: Wang, Quanxiu
name: Jiang, Huixing
name: Wu, Wei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Capturing interactions among event arguments is an essential step towards robust event argument extraction (EAE). However, existing efforts in this direction suffer from two limitations: 1) The argument role type information of contextual entities is mainly utilized as training signals, ignoring the potential merits of directly adopting it as semantically rich input features; 2) The argument-level sequential semantics, which implies the overall distribution pattern of argument roles over an event mention, is not well characterized. To tackle the above two bottlenecks, we formalize EAE as a Seq2Seq-like learning problem for the first time, where a sentence with a specific event trigger is mapped to a sequence of event argument roles. A neural architecture with a novel Bi-directional Entity-level Recurrent Decoder (BERD) is proposed to generate argument roles by incorporating contextual entities' argument role predictions, like a word-by-word text generation process, thereby distinguishing implicit argument distribution patterns within an event more accurately.
Persistence, extinction and spatio-temporal synchronization of SIRS cellular automata models
Creators: name: Liu, Quan-Xing
name: Wang, Rong-Hua
name: Jin, Zhen
Publisher: name: arXiv
Year: 2008
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Cellular Automata and Lattice Gases (nlin.CG)
subject: Pattern Formation and Solitons (nlin.PS)
subject: Physics and Society (physics.soc-ph)
subject: Other Quantitative Biology (q-bio.OT)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Spatially explicit models have been widely used in today's mathematical ecology and epidemiology to study persistence and extinction of populations as well as their spatial patterns. Here we extend the earlier work--static dispersal between neighbouring individuals to mobility of individuals as well as multi-patches environment. As is commonly found, the basic reproductive ratio is maximized for the evolutionary stable strategy (ESS) on diseases' persistence in mean-field theory. This has important implications, as it implies that for a wide range of parameters that infection rate will tend maximum. This is opposite with present results obtained in spatial explicit models that infection rate is limited by upper bound. We observe the emergence of trade-offs of extinction and persistence on the parameters of the infection period and infection rate and show the extinction time having a linear relationship with respect to system size. We further find that the higher mobility can pronouncedly promote the persistence of spread of epidemics, i.e., the phase transition occurs from extinction domain to persistence domain, and the spirals' wavelength increases as the mobility increasing and ultimately, it will saturate at a certain value. Furthermore, for multi-patches case, we find that the lower coupling strength leads to anti-phase oscillation of infected fraction, while higher coupling strength corresponds to in-phase oscillation.
description: 12pages
Fibers of Generic Projections
Creators: name: Beheshti, Roya
name: Eisenbud, David
Publisher: name: arXiv
Year: 2008
Subjects: subject: Algebraic Geometry (math.AG)
subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: 14N05; 14B07; 13B22

description: Let X be a smooth projective variety of dimension n in P^r. We study the fibers of a general linear projection pi: X --> P^{n+c}, with c > 0. When n is small it is classical that the degree of any fiber is bounded by n/c+1, but this fails for n >> 0. We describe a new invariant of the fiber that agrees with the degree in many cases and is always bounded by n/c+1. This implies, for example, that if we write a fiber as the disjoint union of schemes Y' and Y'' such that Y' is the union of the locally complete intersection components of Y, then deg Y'+deg Y''_red <= n/c+1 and this formula can be strengthened a little further. Our method also gives a sharp bound on the subvariety of P^r swept out by the l-secant lines of X for any positive integer l, and we discuss a corresponding bound for highly secant linear spaces of higher dimension. These results extend Ziv Ran's "Dimension+2 Secant Lemma".
description: Proof of the main theorem simplified and new examples added
Nonequilibrium Cotunneling through a Three-Level Quantum Dot
Creators: name: Schmaus, S.
name: Koerting, V.
name: Paaske, J.
name: Jespersen, T. S.
name: Nygård, J.
name: Wölfle, P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We calculate the nonlinear cotunneling conductance through a quantum dot with 3 electrons occupying the three highest lying energy levels. Starting from a 3-orbital Anderson model, we apply a generalized Schrieffer-Wolff transformation to derive an effective Kondo model for the system. Within this model we calculate the nonequilibrium occupation numbers and the corresponding cotunneling current to leading order in the exchange couplings. We identify the inelastic cotunneling thresholds and their splittings with applied magnetic field, and make a qualitative comparison to recent experimental data on carbon nanotube and InAs quantum-wire quantum dots. Further predictions of the model like cascade resonances and a magnetic-field dependence of the orbital level splitting are not yet observed but within reach of recent experimental work on carbon nanotube and InAs nanowire quantum dots.
description: 12 pages, 13 figures
Tutorial on laser linewidths
Creators: name: McKinstrie, C. J.
name: Stirling, T. J.
name: Helmy, A. S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this tutorial, the physical origins and mathematical analyses of laser linewidths are reviewed. The semi-classical model is based on an equation for the light-mode amplitude that includes random source terms, one term for each process that affects the amplitude (stimulated and spontaneous emission, stimulated absorption, and facet and material loss). Although the source terms are classical, their assigned strengths are consistent with the laws of quantum optics. Analysis of this equation shows that the laser linewidth is proportional to the sum of the (positive) source strengths for all gain and loss processes. Three-level and semiconductor lasers have broader linewidths than comparable four-level lasers, because stimulated absorption and the stimulated emission that compensates it both contribute to the linewidth.
description: 20 pages
The contact binary GSC 04778-00152 with a visual companion
Creators: name: Tuvikene, T.
name: Eenmäe, T.
name: Sterken, C.
name: Brogt, E.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Photometric and spectroscopic observations of the unstudied 12th-magnitude eclipsing binary GSC 04778-00152 are presented. We report the discovery of a visual companion about 1 mag fainter and 2 arcsec away from the binary. By subtracting the light contribution of the visual companion, we obtain the UBVRI light curves of the binary system alone. The shape of the light curve indicates that GSC 04778-00152 is an A-type W UMa contact binary. From light-curve modeling, we derive parameters of the binary system.
description: 8 pages, 3 figures, 4 tables
Radiative Efficiency and Content of Extragalactic Radio Sources: Toward a Universal Scaling Relation Between Jet Power and Radio Power
Creators: name: Birzan, L.
name: McNamara, B. R.
name: Nulsen, P. E. J.
name: Carilli, C. L.
name: Wise, M. W.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present an analysis of the energetics and particle content of the lobes of 24 radio galaxies at the cores of cooling clusters. The radio lobes in these systems have created visible cavities in the surrounding hot, X-ray-emitting gas, which allow direct measurement of the mechanical jet power of radio sources over six decades of radio luminosity, independently of the radio properties themselves. Using these measurements, we examine the ratio between radio power and total jet power (the radiative efficiency). We find that jet (cavity) power increases with radio synchrotron power approximately as P_jet ~ (L_radio)^beta, where 0.35 < beta < 0.70 depending on the bandpass of measurement and state of the source. However, the scatter about these relations caused by variations in radiative efficiency spans more than four orders of magnitude. After accounting for variations in synchrotron break frequency (age), the scatter is reduced by ~ 50%, yielding the most accurate scaling relation available between the lobe bolometric radio power and the jet (cavity) power. We place limits on the magnetic field strengths and particle content of the radio lobes using a variety of X-ray constraints. We find that the lobe magnetic field strengths vary between a few to several tens of microgauss depending on the age and dynamical state of the lobes. If the cavities are maintained in pressure balance with their surroundings and are supported by internal fields and particles in equipartition, the ratio of energy in electrons to heavy particles (k) must vary widely from approximately unity to 4000, consistent with heavy (hadronic) jets.
description: 20 pages, 11 figures. Accepted for publication in ApJ
A performance experiment on a unix system
Creators: name: Downing, Roderick Lane
Publisher: name: University of British Columbia
Year: 2010

description: A performance experiment on a PDP 11/45 running under UNIX is described. The purpose is to discover the major influences in the system and their relationships in an attempt to analyze the performance of the system and predict the effect on performance of possible hardware and workload changes. A suitable performance parameter is developed and the workload, hardware and internal system parameters are determined. Tools are constructed to record these parameters. A controlled experiment, using a synthetic workload is then conducted. The results are analyzed using regression analysis and suitable equations are obtained. Sample applications are given. The merits of the relationships, as well as the suitability of the tools developed and methods used, are discussed.
Investigating Off-shell Stability of Anti-de Sitter Space in String Theory
Creators: name: Suneeta, V.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We propose an investigation of stability of vacua in string theory by studying their stability with respect to a (suitable) world-sheet renormalization group (RG) flow. We prove geometric stability of (Euclidean) anti-de Sitter (AdS) space (i.e., $\mathbf{H}^n$) with respect to the simplest RG flow in closed string theory, the Ricci flow. AdS space is not a fixed point of Ricci flow. We therefore choose an appropriate flow for which it is a fixed point, prove a linear stability result for AdS space with respect to this flow, and then show this implies its geometric stability with respect to Ricci flow. The techniques used can be generalized to RG flows involving other fields. We also discuss tools from the mathematics of geometric flows that can be used to study stability of string vacua.
description: 29 pages, references added in this version to appear in Classical and Quantum Gravity
INTELLEKTUAL MULK OBYEKTLARIDAN OLINADIGAN DAROMADLARNI SOLIQQA TORTISH MASALALARI
Creators: name: Qudratov, Jahongir
Publisher: name: Zenodo
Year: 2023

description: Intellektual faoliyat natijalari texnologiyalarning o‘zaro almashinuviga ta’siri tufayli va boshqa ijobiy tashqi ta’sirlarning yaratishi sababli, iqtisodiyotning o‘sish sur’atlarini tezlashtirishda muhim rol o‘ynaydi. Intellektual mulkning iqtisodiy rivojlanishdagi roli soliqqa tortish bilan bog‘liq bir qator omillarga, xususan daromadlarga soliq solish bilan asoslanadi. Intellektual mulk bilan bog‘liq tijorat operatsiyalari hajmining ortib borayotganligi rivojlangan va rivojlanayotgan mamlakatlarda daromadlarni soliqqa tortish borasidagi bir-biriga zid bo‘lgan qarashlarni ilgari surilishiga sabab bo‘lmoqda.
Understanding the edge effect in TASEP with mean-field theoretic approaches
Creators: name: Dong, J. J.
name: Zia, R. K. P.
name: Schmittmann, B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study a totally asymmetric simple exclusion process (TASEP) with one defect site, hopping rate $q<1$, near the system boundary. Regarding our system as a pair of uniform TASEP's coupled through the defect, we study various methods to match a \emph{finite} TASEP and an \emph{infinite} one across a common boundary. Several approximation schemes are investigated. Utilizing the finite segment mean-field (FSMF) method, we set up a framework for computing the steady state current $J$ as a function of the entry rate $% α$ and $q$. For the case where the defect is located at the entry site, we obtain an analytical expression for $J(α, q) $ which is in good agreement with Monte Carlo simulation results. When the defect is located deeper in the bulk, we refined the scheme of MacDonald, et.al. [Biopolymers, \textbf{6}, 1 (1968)] and find reasonably good fits to the density profiles before the defect site. We discuss the strengths and limitations of each method, as well as possible avenues for further studies.
description: 16 pages, 4 figures
Tutorial on stochastic systems
Creators: name: McKinstrie, C. J.
name: Stirling, T. J.
name: Helmy, A. S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this tutorial, three examples of stochastic systems are considered: A strongly-damped oscillator, a weakly-damped oscillator and an undamped oscillator (integrator) driven by noise. The evolution of these systems is characterized by the temporal correlation functions and spectral densities of their displacements, which are determined and discussed. Damped oscillators reach steady stochastic states. Their correlations are decreasing functions of the difference between the sample times and their spectra have peaks near their resonance frequencies. An undamped oscillator never reaches a steady state. Its energy increases with time and its spectrum is sharply peaked at low frequencies. The required mathematical methods and physical concepts are explained on a just-in-time basis, and some theoretical pitfalls are mentioned. The insights one gains from studies of oscillators can be applied to a wide variety of physical systems, such as atom and semiconductor lasers, which will be discussed in a subsequent tutorial.
description: 34 pages, 13 figures
Additional file 1 of Sense of coherence in bipolar disorder– a longitudinal study
Creators: name: Pålsson, Erik
name: Landén, Mikael
Publisher: name: figshare
Year: 2025
Subjects: subject: Medicine
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: Sociology
subject: FOS: Sociology
subject: Mental Health

description: Supplementary file 1: Table 1 Baseline clinical characteristics in individuals with bipolar disorder who completed the 14-year follow-up visit compared to individuals who did not complete the 14-year follow-up visit
Towards a new animation technology
Creators: name: Barenholtz, Jerome
Publisher: name: University of British Columbia
Year: 2010

description: This thesis is an examination of. The conceptual and computer-science issues involved with the design and programming of a system for animation of line drawings in a mini-computer environment. The intent is to produce a system which will be of direct value to artists, rather than some other users' community. Because of this , the thesis starts with an analysis of the animation process, as it is practiced by artists. First, there is a review of the conventional technology, with particular attention to the aspects which have been imposed by purely technological considerations. Next, an alternative way of viewing the animation process is proposed. This proposal contains the basis for a powerful descriptive language for designing and refining animations. The first section closes with the presentation of the conceptof the Graphic Process, which is a highly flexible and defined mechanism for discussing and planning animations. The second section contains a discussion of how well the author’s system, GRAX, meets the needs of the Graphic Process paradigm. Systems created by other workers are also evaluated along this criterion. There is a general discussion of some of the features demanded by the Graphic Process paradigm, but included in no systems created to date. These features are ascribed to a hypothetical language called SUPER.
Chaotic systems in complex phase space
Creators: name: Bender, Carl M.
name: Feinberg, Joshua
name: Hook, Daniel W.
name: Weir, David J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mathematical Physics (math-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: This paper examines numerically the complex classical trajectories of the kicked rotor and the double pendulum. Both of these systems exhibit a transition to chaos, and this feature is studied in complex phase space. Additionally, it is shown that the short-time and long-time behaviors of these two PT-symmetric dynamical models in complex phase space exhibit strong qualitative similarities.
description: 22 page, 16 figures
title: Preface (Frontmatter, Table of Contents, Preface)
Creators: name: Lucas, Philipp
name: Wilhelm, Reinhard
Publisher: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Year: 2011
Subjects: subject: Frontmatter
subject: Table of Contents
subject: Preface

description: Frontmatter, Table of Contents, Preface
description: OASIcs, Vol. 18, Bringing Theory to Practice: Predictability and Performance in Embedded Systems, pages i-vii
Implications of Flat Optically Thick Microwave Spectra in Solar Flares for Source Size and Morphology
Creators: name: Shaik, Shaheda Begum
name: Gary, Dale E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The study aims to examine the spectral dynamics of the low-frequency, optically thick gyrosynchrotron microwave emission in solar flares to determine the characteristics of the emitting source. We present the high-resolution spectra of a set of microwave bursts observed by the Expanded Owens Valley Solar Array (EOVSA) during its commissioning phase in the $2.5-18$ GHz frequency range with $1$ second time resolution. Out of the 12 events analyzed in this study, nine bursts exhibit a direct decrease with time in the optically thick spectral index $α_l$, an indicator of source morphology. Particularly, five bursts display "flat" spectrum ($α_l\leq1.0$) compared to that expected for a homogeneous/uniform source ($α_l\approx2.9$). These flat spectra at the low-frequencies (
description: 17 pages, 8 figures and 3 tables
Single Spin Asymmetries in Heavy Quark and Antiquark Productions
Creators: name: Yuan, Feng
name: Zhou, Jian
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The single transverse spin asymmetries in heavy quark and anti-quark production from the quark-antiquark annihilation channel contribution is studied by taking into account the initial and final state interactions effects. Because of the different color charges, the final state interaction effects lead to about a factor of 3 difference in the spin asymmetry for heavy quark over that for the anti-quark in the valence region of low energy pp collisions. The experimental study of this model-independent prediction shall provide a crucial test for the underlying mechanism for the single spin asymmetry phenomena.
description: 12 pages, 4 figures
Molecular Beam Epitaxy of a 2D material nearly lattice matched to a 3D substrate: $NiTe_{2}$ on $GaAs$
Creators: name: Seredyński, Bartłomiej
name: Ogorzałek, Zuzanna
name: Zajkowska, Wiktoria
name: Bożek, Rafał
name: Tokarczyk, Mateusz
name: Suffczyński, Jan
name: Kret, Sławomir
name: Sadowski, Janusz
name: Gryglas-Borysiewicz, Marta
name: Pacuski, Wojciech
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The lattice mismatch between interesting 2D materials and commonly available 3D substrates is one of the obstacles in the epitaxial growth of monolithic 2D/3D heterostructures, but a number of 2D materials have not yet been considered for epitaxy. Here we present the first molecular beam epitaxy growth of NiTe$_{2}$ 2D transition metal dichalcogenide. Importantly, the growth is realized on a nearly lattice matched GaAs(111)B substrate. Structural properties of the grown layers are investigated by electron diffraction, X-ray diffraction, and scanning tunnelling microscopy. Surface coverage and atomic scale order is evidenced by images obtained with atomic force, scanning electron, and transmission electron microscopy. Basic transport properties were measured confirming that NiTe$_{2}$ layers are metallic, with the Hall concentration of $10^{20}$cm$^{-3}$ to $10^{23}$cm$^{-3}$, depending on the growth conditions.
T-model field equations: the general solution
Creators: name: Ferrando, Joan Josep
name: Mengual, Salvador
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We analyze the field equations for the perfect fluid solutions admitting a group G$_3$ of isometries acting on orbits S$_2$ whose curvature has a gradient that is tangent to the fluid flow (T-models). We propose several methods to integrate the field equations and we present the general solution without the need to calculate any integral.
description: 11 pages, 3 figures
title: Frontmatter, Table of Contents, Preface
Creators: name: Middel, Ariane
name: Scheler, Inga
name: Hagen, Hans
Publisher: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Year: 2011
Subjects: subject: Frontmatter
subject: Table of Contents
subject: Preface

description: Frontmatter, Table of Contents, Preface
description: OASIcs, Vol. 19, Visualization of Large and Unstructured Data Sets - Applications in Geospatial Planning, Modeling and Engineering (IRTG 1131 Workshop), pages i-x
Dark Matter Gravitational Clustering With a Long-Range Scalar Interaction
Creators: name: Hellwing, Wojciech A.
name: Juszkiewicz, Roman
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We explore the possibility of improving the $Λ$CDM model at megaparsec scales by introducing a scalar interaction which increases the mutual gravitational attraction of dark matter particles. Using N-body simulations, we study the spatial distribution of dark matter particles and halos. We measure the effect of modifications in the Newton's gravity on properties of the two-point correlation function, the dark matter power spectrum, the cumulative halo mass function and density probability distribution functions. The results look promising: the scalar interactions produce desirable features at megaparsec scales without spoiling the $Λ$CDM successes at larger scales.
description: 16 pages, 12 figures, accepted for publication in Phys. Rev. D
X-ray spectra, light-curves and SEDs of blazars frequently observed by Swift
Creators: name: Giommi, P.
name: Perri, M.
name: Capalbi, M.
name: D'Elia, V.
name: de Almeida, U. Barres
name: Brandt, C. H.
name: Pollock, A. M. T.
name: Arneodo, F.
name: Di Giovanni, A.
name: Chang, Y. L.
name: Civitarese, O.
name: De Angelis, M.
name: Leto, C.
name: Verrecchia, F.
name: Ricard, N.
name: Di Pippo, S.
name: Middei, R.
name: Penacchioni, A. V.
name: Ruffini, R.
name: Sahakyan, N.
name: Israyelyan, D.
name: Turriziani, S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Blazars research is one of the hot topics of contemporary extra-galactic astrophysics. That is because these sources are the most abundant type of extra-galactic gamma-ray sources and are suspected to play a central role in multi-messenger astrophysics. We have used swift_xrtproc, a tool to carry out an accurate spectral and photometric analysis of the Swift-XRT data of all blazars observed by Swift at least 50 times between December 2004 and the end of 2020. We present a database of X-ray spectra, best-fit parameter values, count-rates and flux estimations in several energy bands of over 31,000 X-ray observations and single snapshots of 65 blazars. The results of the X-ray analysis have been combined with other multi-frequency archival data to assemble the broad-band Spectral Energy Distributions (SEDs) and the long-term light-curves of all sources in the sample. Our study shows that large X-ray luminosity variability on different timescales is present in all objects. Spectral changes are also frequently observed with a "harder-when-brighter" or "softer-when-brighter" behavior depending on the SED type of the blazars. The peak energy of the synchrotron component nu_peak in the SED of HBL blazars, estimated from the log-parabolic shape of their X-ray spectra, also exhibits very large changes in the same source, spanning a range of over two orders of magnitude in Mrk421 and Mrk501, the objects with the best data sets in our sample.
description: Accepted for publication in MNRAS
On superconducting and magnetic properties of iron-oxypnictides
Creators: name: Barzykin, Victor
name: Gorkov, Lev P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Pairing symmetry in oxypnictides, a new family of multiband high-Tc superconductors, is partially imposed by the positions of multiple Fermi pockets, which itself can give rise to new order parameters, such as s+,- states or the state of dx^2-y^2 symmetry. Other pairing states may appear on small pockets for long range interactions, but they are expected to be sensitive to defects. We identify the competing antiferromagnetic order with the triplet exciton transition in the semi- metallic background and discuss whether its coexistence with superconductivity explains the doping dependence of Tc.
description: Fig1b replaced
The motivations of policymakers in First Nations education, Queensland
Creators: name: Zerafa-Payne, Emerson
Publisher: name: University of Southern Queensland
Year: 2024
Subjects: First Nations
Aboriginal and Torres Strait Islander
Indigenous
policymakers
educational policy
education

description: For many years, researchers have explored the ongoing challenges related to First Nations educational policies in Australia, with much of the research focusing on the policy itself or policy implementation. This study investigated the motivations of policymakers involved in First Nations educational policy in Queensland. Drawing upon Indigenous Standpoint Theory and an Intersectional framework, this study uses the yarning method and thematic analysis to determine the motivations of policymakers in First Nations education, as well as the perspectives First Nations students and their families have of educational policy. The research includes a scoping literature review, followed by a thematic analysis of the yarns to determine common themes. The findings indicate that First Nations families are deeply critical of current educational policies and that current policies fail to adequately recognise and incorporate First Nations knowledge, perspectives and cultural values, leading to a sense of marginalisation and disempowerment among First Nations communities. Furthermore, the findings revealed that the First Nations policymakers are driven by a profound commitment to social justice, cultural responsiveness, and empowerment of marginalised communities – their motivation is rooted in a genuine desire to effect meaningful change and address systemic challenges within the education sector. The research provides a powerful critique of First Nations educational policies in Queensland from First Nations peoples and provides practical implications for policymakers, researchers and stakeholders, offering insights that can inform the development of a more effective and culturally responsive policy practice that can make a real difference to First Nations peoples in Queensland.
ADS/CFT Applied To Vector Meson Emission From A Heavy Accelerated Nucleus
Creators: name: Hoodbhoy, Pervez
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider a classical source, moving on the 4-D boundary of a 5-D ADS space, that is coupled to quantum fields residing in the bulk. Bremsstrahlung-like radiation of the corresponding quanta is shown to occur and the S-matrix is derived assuming that the source is sufficiently massive so that recoil effects are negligible. As an illustrative example, using the ADS hard-wall model, we consider vector mesons coupled to a heavy nucleus that is moved around at high speed in an accelerator ring. The meson radiation rate is found to be finite but small. Much higher accelerations, such as when a pair of heavy ions suffer an ultra peripheral collision, cause substantial emission of various excited vector mesons. Predictions are made for the spectrum of this radiation. A comparison is made against existing photon-pomeron fusion calculations for the transverse momentum spectra of rho mesons. These have the same overall shape as the recently measured transverse momentum distributions at RHIC.
description: 17 pages, 1 figure
Additional file 1 of The comparative genomic analysis provides insight into the divergent inhibitory activity metabolites in pathogen-driven three Pseudomonas palleroniana strains against primary pathogens of Pseudostellaria heterophylla
Creators: name: Huang, Chunfeng
name: Wang, Xiaoai
name: Gao, Yanping
name: Jiang, Xue
name: Wang, Lingling
name: Ou, Xiaohong
name: Wang, Yanhong
name: Zhou, Tao
name: Yuan, Qing-Song
Publisher: name: figshare
Year: 2025
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Supplementary Material 1
AstraeusIV : Quantifying the star formation histories of galaxies in the Epoch of Reionization
Creators: name: Legrand, Laurent
name: Hutter, Anne
name: Dayal, Pratika
name: Ucci, Graziano
name: Gottlöber, Stefan
name: Yepes, Gustavo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We use the \textsc{astraeus} framework, that couples an N-body simulation with a semi-analytic model for galaxy formation and a semi-numerical model for reionization, to quantify the star formation histories (SFHs) of galaxies in the first billion years. Exploring four models of radiative feedback, we fit the SFH of each galaxy at $z>5$ as $\mathrm{log}(\mathrm{SFR}(z))=-α(1 + z)+β$; star formation is deemed stochastic if it deviates from this fit by more than $Δ_\mathrm{SFR}=0.6\,$dex. Our key findings are: (i) The fraction of stellar mass formed and time spent in the stochastic phase decrease with increasing stellar mass and redshift $z$. While galaxies with stellar masses of $M_\star\sim10^7M_\odot$ at $z\sim5~(10)$ form $\sim70\%~(20\%)$ of their stellar mass in the stochastic phase, this reduces to $<10\%$ at all redshifts for galaxies with $M_\star > 10^{10}M_\odot$; (ii) the fractional mass assembled and lifetime spent in the stochastic phase do not significantly change with the radiative feedback model used; (iii) at all redshifts, $α$ increases (decreases for the strongest radiative feedback model) with stellar mass for galaxies with $M_\star\lesssim 10^{8.5}M_\odot$ and converges to $\sim0.18$ for more massive galaxies; $β$ always increases with stellar mass. Our proposed fits can reliably recover the stellar masses and mass-to-light ratios for galaxies with $M_\star\sim10^{8-10.5}M_\odot$ and $M_{UV}\sim-17~{\rm to}~-23$ at $z\sim 5-9$. This physical model can therefore be used to derive the SFHs for galaxies observed by a number of forthcoming instruments.
description: 19 pages, 14 figures, accepted for publication in MNRAS
Variable slip coefficient in binary lattice Boltzmann models
Creators: name: Szalmás, Lajos
Publisher: name: arXiv
Year: 2008
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We present a new method in order to get variable slip coefficient in binary lattice Boltzmann models to simulate gaseous flows. Boundary layer theory is presented. We study both the single- and multi-fluid BGK-type models as well. The boundary slip and the Knudsen layer are analyzed in detail. Benchmark simulations are carried out in order to compare the analytical derivation with the numerical results. Excellent agreement is found between the two situations.
description: 14 pages, 1 figure. accepted in Central European Journal of Physics
Representation and control in program that understands line sketches of houses
Creators: name: Mulder, Jan A.
Publisher: name: University of British Columbia
Year: 2010

description: In this thesis, a program, HOUSE, is described that can interpret line sketches of houses and other polyhedral objects. The program is part of the SEE project, a sketch understanding project at the University of British Columbia. In this respect HOUSE is a generalization of MAPSEE, a program that can interpret line sketches of geographic maps. The most important goal of HOUSE is to test the adequacy and efficiency of the program's control structure which is based on a helical metaphor for the perceptual process. Such a helical metaphor is based on a stratified interpretation process with a bottom-up, pass-oriented control structure. HOUSE takes (like MAPSEE) as input a plot program by means of which the sketch can be displayed on a graphical display device. The program subsequently describes the sketch at different levels of representation. These levels can be categorized in two domains: a picture domain consisting of two-dimensional representations of the sketch and a scene domain consisting of three-dimensional representations. Processing in the picture domain is dominated by a segmentation process that results in three different types of representations. In contrast with MAPSEE, HOUSE also maintains different levels of representation in the scene domain. Each of these levels represents the sketch at a different degree of abstraction. The cycle of perception with its four stages serves as a metaphor for describing the interpretation process at each of these levels. Cues are first formed by the segmentation process (cue discovery); these cues (the vertices) suggest possible interpretations for the primitives (the edges) at the lowest level in the interpretation domain (model invocation); these interpretations are taken by a network consistency algorithm that tests the global consistency among these interpretations (model testing and elaboration). Interpretations that are part of a globally consistent description of the sketch then serve as cues for the next higher level where the cycle is repeated. This process continues until the sketch is described at the highest possible level of abstraction. Several examples were run with the program. Apart from a number of desirable features, these tests showed two important weaknesses of the helical metaphor: its inability to account for incomplete line sketches, and its inability to impose top-down constraints. These weaknesses led to the formulation of a more powerful metaphor: the multi-helix. Among other things, this multi-helix allows multiple access to the different levels of representation in both a bottom-up and top-down direction. A comparison of the multi-helix metaphor with several other perceptual processing metaphors argues for the former's superior ability to account for certain characteristics of the perceptual process. Consequently, the multi-helix can be seen as another step towards a theory of machine perception.
Learning of correlated patterns by simple perceptrons
Creators: name: Shinzato, Takashi
name: Kabashima, Yoshiyuki
Publisher: name: arXiv
Year: 2008
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Learning behavior of simple perceptrons is analyzed for a teacher-student scenario in which output labels are provided by a teacher network for a set of possibly correlated input patterns, and such that teacher and student networks are of the same type. Our main concern is the effect of statistical correlations among the input patterns on learning performance. For this purpose, we extend to the teacher-student scenario a methodology for analyzing randomly labeled patterns recently developed in {\em J. Phys. A: Math. Theor.} {\bf 41}, 324013 (2008). This methodology is used for analyzing situations in which orthogonality of the input patterns is enhanced in order to optimize the learning performance.