cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Cavity-QED of a leaky planar resonator coupled to an atom and an input single-photon pulse
Creators: name: Gonta, Denis
name: van Loock, Peter
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In contrast to the free-space evolution of an atom governed by a multi-mode interaction with the surrounding electromagnetic vacuum, the evolution of a cavity-QED system can be characterized by just three parameters, (i) atom-cavity coupling strength g, (ii) cavity relaxation rate κ, and (iii) atomic decay rate into the non-cavity modes γ. In the case of an atom inserted into a planar resonator with an input beam coupled from the outside, it has been shown by Koshino [Phys. Rev. A 73, 053814 (2006)] that these three parameters are determined not only by the atom and cavity characteristics, but also by the spatial distribution of the input pulse. By an ab-initio treatment, we generalize the framework of Koshino and determine the cavity-QED parameters of a coupled system of atom, planar (leaky) resonator, and input single-photon pulse as functions of the lateral profile of the pulse and the length of resonator. We confirm that the atomic decay rate can be suppressed by tailoring appropriately the lateral profile of the pulse. Such an active suppression of atomic decay opens an attractive route towards an efficient quantum memory for long-term storage of an atomic qubit inside a planar resonator.
description: 17 pages, 6 figures, revised version accepted in PRA
Climate forecasts for early warning: up to six months in advance
Creators: name: Mason, Simon J.
Publisher: name: Columbia University
Year: 2018
Subjects: Climatic changes
Climatic changes--Forecasting
Climatic changes--Health aspects
Long-range weather forecasting
Public health

description: In this chapter, we explore the potential value of seasonal climate forecasts to the health community. We begin by considering why the general weather conditions over a season might be predictable, before examining how seasonal forecasts are made, and why they are presented in a different way to weather forecasts. We then examine where and when seasonal forecasts work best, and emphasize that it is possible to make useful seasonal forecasts for health outcomes only in some parts of the world and for certain times of the year (and possibly only for some years). We also review some of the main sources of seasonal forecasts.
Hysteretic Behavior Simulation Based on Pyramid Neural Network:Principle, Network Architecture, Case Study and Explanation
Creators: name: Xu, Yongjia
name: Lu, Xinzheng
name: Fei, Yifan
name: Huang, Yuli
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: An accurate and efficient simulation of the hysteretic behavior of materials and components is essential for structural analysis. The surrogate model based on neural networks shows significant potential in balancing efficiency and accuracy. However, its serial information flow and prediction based on single-level features adversely affect the network performance. Therefore, a weighted stacked pyramid neural network architecture is proposed herein. This network establishes a pyramid architecture by introducing multi-level shortcuts to integrate features directly in the output module. In addition, a weighted stacked strategy is proposed to enhance the conventional feature fusion method. Subsequently, the redesigned architectures are compared with other commonly used network architectures. Results show that the redesigned architectures outperform the alternatives in 87.5% of cases. Meanwhile, the long and short-term memory abilities of different basic network architectures are analyzed through a specially designed experiment, which could provide valuable suggestions for network selection.
description: 41 pages, 14 figures
title: Αξιολόγηση των δυνατοτήτων χρησιμοποίησης αργιλοχωμάτων της περιοχής Βόρειας Συκοράχης Νομού Ροδόπης στη βιομηχανία παραδοσιακών κεραμικών
Creators: name: Τερλεμές Νεοπτόλεμος
Publisher: name: Technical University of Crete
Year: 1993

description: Μη διαθέσιμο
Probability transport on the Fock space of a disordered quantum spin chain
Creators: name: Creed, Isabel
name: Logan, David E.
name: Roy, Sthitadhi
Publisher: name: arXiv
Year: 2022
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Within the broad theme of understanding the dynamics of disordered quantum many-body systems, one of the simplest questions one can ask is: given an initial state, how does it evolve in time on the associated Fock-space graph, in terms of the distribution of probabilities thereon? A detailed quantitative description of the temporal evolution of out-of-equilibrium disordered quantum states and probability transport on the Fock space, is our central aim here. We investigate it in the context of a disordered quantum spin chain which hosts a disorder-driven many-body localisation transition. Real-time dynamics/probability transport is shown to exhibit a rich phenomenology, which is markedly different between the ergodic and many-body localised phases. The dynamics is for example found to be strongly inhomogeneous at intermediate times in both phases, but while it gives way to homogeneity at long times in the ergodic phase, the dynamics remain inhomogeneous and multifractal in nature for arbitrarily long times in the localised phase. Similarly, we show that an appropriately defined dynamical lengthscale on the Fock-space graph is directly related to the local spin-autocorrelation, and as such sheds light on the (anomalous) decay of the autocorrelation in the ergodic phase, and lack of it in the localised phase.
description: 20 pages, 16 figures
Climate variability and trends: drivers
Creators: name: Mason, Simon J.
Publisher: name: Columbia University
Year: 2018
Subjects: Climatic changes
Climatology

description: This chapter describes how climate varies by location, by considering the effects of altitude, latitude and other aspects of geography on the climate. Weather and climate can vary considerably at almost all timescales, but the amount they do vary differs considerably from place-to-place, and at different times of the year. Sea-surface temperature anomalies affect evaporation and heating or cooling of the overlying air, and the effect can last for weeks, months or even longer, because it takes so much energy to change the temperature of water. Spatial and temporal variations of temperature are much simpler than those of rainfall at virtually all scales. It is important to understand these scales of variability in space and time to obtain some idea of the necessary resolution of data for any analyses of climate–health relationships. The North Atlantic Oscillation is a large-scale pattern of natural climate variability characterized by a seesaw difference in air pressure between the Azores and Iceland.
ONLINE PRODUCT INFORMATION CHARACTERISTICS EFFECT ON PRODUCT INFORMATION SHARING IN THAILAND
Creators: name: Liang, Liu
Publisher: name: University of the Thai Chamber of Commerce
Year: 2021
Subjects: Online product information characteristics
Stimulation-organism-model
Technology acceptance model
Perceived fluency
Product information sharing

description: UTCC International Journal of Business and Economics, 13, 3, 75-95
Patrick Schollmeyer: Die römische Plastik. Eine Einführung
Creators: name: Schmitz, Dietmar
Publisher: name: Forum Classicum
Year: 2017

description: Rezension zu: Patrick Schollmeyer: Die römische Plastik. Eine Einführung. Darmstadt: Wissenschaflliche Buchgesellschafl, 2005, 160 S. (ISBN3-534- 13891-0)
description: Forum Classicum, Nr. 4 (2005): Forum Classicum
First principles description of the giant dipole resonance in 16O
Creators: name: Bacca, Sonia
name: Barnea, Nir
name: Hagen, Gaute
name: Orlandini, Giuseppina
name: Papenbrock, Thomas
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We present an ab-initio calculation of the giant dipole resonance in 16O based on a nucleon-nucleon (NN) interaction from chiral effective field theory that reproduces NN scattering data with high accuracy. By merging the Lorentz integral transform and the coupled-cluster methods, we extend the previous theoretical limits for break-up observables in light nuclei with mass numbers (A<=7), and address the collective giant dipole resonance of 16O. We successfully benchmark the new approach against virtually exact results from the hyper-spherical harmonics method in 4He. Our results for 16O reproduce the position and the total strength (bremsstrahlung sum rule) of the dipole response very well. When compared to the cross section from photo-absorption experiments the theoretical curve exhibits a smeared form of the peak. The tail region between 40 and 100 MeV is reproduced within uncertainties.
description: 6 pages, 4 figures, minor changes
title: Αξιολόγηση των γεωλογικών-γεωθερμικών παραμέτρων της περιοχής Αλεξανδρούπολης και προγραμματισμός των πιθανών γεωθερμικών εφαρμογών
Creators: name: Περόγλου Γεώργιος
Publisher: name: Technical University of Crete
Year: 1994

description: Μη διαθέσιμο
Biologically Inspired Dynamic Thresholds for Spiking Neural Networks
Creators: name: Ding, Jianchuan
name: Dong, Bo
name: Heide, Felix
name: Ding, Yufei
name: Zhou, Yunduo
name: Yin, Baocai
name: Yang, Xin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: The dynamic membrane potential threshold, as one of the essential properties of a biological neuron, is a spontaneous regulation mechanism that maintains neuronal homeostasis, i.e., the constant overall spiking firing rate of a neuron. As such, the neuron firing rate is regulated by a dynamic spiking threshold, which has been extensively studied in biology. Existing work in the machine learning community does not employ bioinspired spiking threshold schemes. This work aims at bridging this gap by introducing a novel bioinspired dynamic energy-temporal threshold (BDETT) scheme for spiking neural networks (SNNs). The proposed BDETT scheme mirrors two bioplausible observations: a dynamic threshold has 1) a positive correlation with the average membrane potential and 2) a negative correlation with the preceding rate of depolarization. We validate the effectiveness of the proposed BDETT on robot obstacle avoidance and continuous control tasks under both normal conditions and various degraded conditions, including noisy observations, weights, and dynamic environments. We find that the BDETT outperforms existing static and heuristic threshold approaches by significant margins in all tested conditions, and we confirm that the proposed bioinspired dynamic threshold scheme offers homeostasis to SNNs in complex real-world tasks.
description: https://proceedings.neurips.cc/paper_files/paper/2022/hash/2858f8c8683aaa8c12d487354cf328dc-Abstract-Conference.html
A STUDY OF FACTORS INFLUENCING ONLINE PURCHASE INTENTION TOWARDS A POPULAR ONLINE APPAREL RETAILER IN THAILAND
Creators: name: Oo, Nay Chi Khin Khin
Publisher: name: University of the Thai Chamber of Commerce
Year: 2021
Subjects: Fashion leadership
Hedonic shopping
Need advice from personnel
Online clothing purchase intention
Quick shopping
Website attitude

description: UTCC International Journal of Business and Economics, 13, 3, 97-108
Hermann Niedermayr / Florian Schaffenrath: Reisen in den Fernen Osten. Spätmittelalterliche Fernreiseberichte in lateinischer Sprache
Creators: name: Maier, Friedrich
Publisher: name: Forum Classicum
Year: 2017

description: Rezension zu: Hermann Niedermayr / Florian Schaffenrath: Reisen in den Fernen Osten. Spätmittelalterliche Fernreiseberichte in lateinischer Sprache. Eine Auswahl - Texte - Übersetzungen und Kommentare. Sondernummer von LATEINFORUM 55/56,2005, 202 S. DIN A4. Hg. vom Verein zur Förderung der Unterrichtsdiskussion, Institut für Klassische Philologie der Universität, Innrain 52/1, 6020 Innsbruck. Zu beziehen von: innverlag + gatt. ISBN 3-9501975- 1-6
description: Forum Classicum, Nr. 4 (2005): Forum Classicum
title: Ανάλυση των παραμέτρων για τη διαμόρφωση χώρου υγειονομικής ταφής με έμφαση στο σχεδιασμό τάπητα στεγανοποίησης
Creators: name: Αλεξοπούλου Δέσποινα
Publisher: name: Technical University of Crete
Year: 1993

description: Μη διαθέσιμο
Projective normality of model varieties and related results
Creators: name: Bravi, Paolo
name: Gandini, Jacopo
name: Maffei, Andrea
Publisher: name: arXiv
Year: 2013
Subjects: subject: Algebraic Geometry (math.AG)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 14M27 (Primary), 20G05 (Secondary)

description: We prove that the multiplication of sections of globally generated line bundles on a model wonderful variety M of simply connected type is always surjective. This follows by a general argument which works for every wonderful variety and reduces the study of the surjectivity for every couple of globally generated line bundles to a finite number of cases. As a consequence, the cone defined by a complete linear system over M or over a closed G-stable subvariety of M is normal. We apply these results to the study of the normality of the compactifications of model varieties in simple projective spaces and of the closures of the spherical nilpotent orbits. Then we focus on a particular case proving two specific conjectures of Adams, Huang and Vogan on an analogue of the model orbit of the group of type E8.
description: v2: 54 pages, new introduction and several minor changes, added Proposition 9.2. To appear on Representation Theory
Exact solutions for time-dependent complex symmetric potential well
Creators: name: Khantoul, Boubakeur
name: Bounames, A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Using the pseudo-invariant operator method, we investigate the model of a particle with a time-dependent mass in a complex time-dependent symmetric potential well $V\left( x,t\right) =if\left(t\right) \left\vert x\right\vert$. The problem is exactly solvable and the analytic expressions of the Schrödinger wavefunctions are given in terms of the Airy function. Indeed, with an appropriate choice of the time-dependent metric operators and the unitary transformations, for each region, the two corresponding pseudo-Hermitian invariants transform into a well-known time-independent Hermitian invariant which is the Hamiltonian of a particle confined in a symmetric linear potential well. The eigenfunctions of the last invariant are the Airy functions. Then, the phases obtained are real for both regions and the general solution to the problem is deduced.
description: 17 pages, 2 figures, published version
Broad emission lines in optical spectra of hot dust-obscured galaxies can contribute significantly to JWST/NIRCam photometry
Creators: name: McKinney, Jed
name: Finnerty, Luke
name: Casey, Caitlin
name: Franco, Maximilien
name: Long, Arianna
name: Fujimoto, Seiji
name: Zavala, Jorge
name: Cooper, Olivia
name: Akins, Hollis
name: Pope, Alexandra
name: Armus, Lee
name: Soifer, B. T.
name: Larson, Kirsten
name: Matthews, Keith
name: Melbourne, Jason
name: Cushing, Michael
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Selecting the first galaxies at z>7-10 from JWST surveys is complicated by z<6 contaminants with degenerate photometry. For example, strong optical nebular emission lines at z<6 may mimic JWST/NIRCam photometry of z>7-10 Lyman Break Galaxies (LBGs). Dust-obscured 3-1.5$ and z>4. While there are some redshifts (z~3.75) where our stack is more degenerate with the photometry of z>10 LBGs between $λ_{rest}\sim0.3-0.8\,μ$m, redder filter coverage beyond $λ_{obs}>3.5\,μ$m and far-IR/sub-mm follow-up may be useful for breaking the degeneracy and making a crucial separation between two fairly unconstrained populations, dust-obscured galaxies at z~3-6 and LBGs at z>10.
description: 8 pages, 3 figures, 1 table, submitted to ApJL
The 6-strand braid group is CAT(0)
Creators: name: Haettel, Thomas
name: Kielak, Dawid
name: Schwer, Petra
Publisher: name: arXiv
Year: 2013
Subjects: subject: Group Theory (math.GR)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 20F36, 51M20, 06A11, 06C20, 05A18

description: We show that braid groups with at most 6 strands are CAT(0) using the close connection between these groups, the associated non-crossing partition complexes and the embeddability of their diagonal links into spherical buildings of type A. Furthermore, we prove that the orthoscheme complex of any bounded graded modular complemented lattice is CAT(0), giving a partial answer to a conjecture of Brady and McCammond.
description: 27 pages, 13 figures. To appear in Geometriae Dedicata, the final publication is available at Springer via http://dx.doi.org/10.1007/s10711-015-0138-9
INVESTIGATING THAI TOURIST'S TRAVELING BEHAVIOR FOR HOT SPRING MANAGEMENT TO PROMOTE HEALTH TOURISM IN CHIANG RAI
Creators: name: Pornpimol Chaisanit
Publisher: name: University of the Thai Chamber of Commerce
Year: 2021
Subjects: Hot spring management
Thai tourists' behavior
Health tourism

description: UTCC International Journal of Business and Economics, 13, 3, 147-161
Symbolic Regression in Materials Science: Discovering Interatomic Potentials from Data
Creators: name: Burlacu, Bogdan
name: Kommenda, Michael
name: Kronberger, Gabriel
name: Winkler, Stephan
name: Affenzeller, Michael
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Machine Learning (cs.LG)
subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Particle-based modeling of materials at atomic scale plays an important role in the development of new materials and understanding of their properties. The accuracy of particle simulations is determined by interatomic potentials, which allow to calculate the potential energy of an atomic system as a function of atomic coordinates and potentially other properties. First-principles-based ab initio potentials can reach arbitrary levels of accuracy, however their aplicability is limited by their high computational cost. Machine learning (ML) has recently emerged as an effective way to offset the high computational costs of ab initio atomic potentials by replacing expensive models with highly efficient surrogates trained on electronic structure data. Among a plethora of current methods, symbolic regression (SR) is gaining traction as a powerful "white-box" approach for discovering functional forms of interatomic potentials. This contribution discusses the role of symbolic regression in Materials Science (MS) and offers a comprehensive overview of current methodological challenges and state-of-the-art results. A genetic programming-based approach for modeling atomic potentials from raw data (consisting of snapshots of atomic positions and associated potential energy) is presented and empirically validated on ab initio electronic structure data.
description: Submitted to the GPTP XIX Workshop, June 2-4 2022, University of Michigan, Ann Arbor, Michigan
title: Το πρόβλημα των σκληρών σχηματισμών των υπερκείμενων του ορυχείου Νότου Πεδίου του λιγνιτικού Κέντρου Πτολεμαίδας-Αμυνταίου
Creators: name: Δημητρακοπούλου Βασιλική
Publisher: name: Technical University of Crete
Year: 1993

description: Μη διαθέσιμο
Holger Sonnabend, Wie Augustus die Feuerwehr erfand / Ders., Wie Nero das Chanson erfand
Creators: name: Balzert, Monika
Publisher: name: Forum Classicum
Year: 2017

description: Rezension zu: Holger Sonnabend, Wie Augustus die Feuerwehr erfand. Große Errungenschaften der Antike. 208 Seiten, Artemis & Winkler2002, (ISBN: 3538071357).
Ders., Wie Nero das Chanson erfand. Trendsetter der antiken Kunst und Kultur. 220 Seiten. Artemis & Winkler/ Patmos, Düsseldorf und Zürich 2005, (ISBN: 3760823106)
description: Forum Classicum, Nr. 1 (2006): Forum Classicum
Calculating Track-Based Observables for the LHC
Creators: name: Chang, Hsi-Ming
name: Procura, Massimiliano
name: Thaler, Jesse
name: Waalewijn, Wouter J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: By using observables that only depend on charged particles (tracks), one can efficiently suppress pile-up contamination at the LHC. Such measurements are not infrared safe in perturbation theory, so any calculation of track-based observables must account for hadronization effects. We develop a formalism to perform these calculations in QCD, by matching partonic cross sections onto new non-perturbative objects called track functions which absorb infrared divergences. The track function T_i(x) describes the energy fraction x of a hard parton i which is converted into charged hadrons. We give a field-theoretic definition of the track function and derive its renormalization group evolution, which is in excellent agreement with the Pythia parton shower. We then perform a next-to-leading order calculation of the total energy fraction of charged particles in e+ e- -> hadrons. To demonstrate the implications of our framework for the LHC, we match the Pythia parton shower onto a set of track functions to describe the track mass distribution in Higgs plus one jet events. We also show how to reduce smearing due to hadronization fluctuations by measuring dimensionless track-based ratios.
description: 5 pages, 5 figures; v2: figure added, discussion improved, journal version
Climate data: the past and present
Creators: name: Mason, Simon J.
name: Ceccato, Pietro N.
name: Hewitt, Chris
Publisher: name: Columbia University
Year: 2018
Subjects: Climatic changes
Climatic changes--Models
Climatic changes--Research
Climatic changes--Data processing
Climatology

description: In this chapter we describe how climate variables are measured (e.g., ground observation, remote sensing or modelled data), how the data are collected and how they are shared. We discuss the advantages and disadvantages of different data sources and highlight the potential advantages of climate data made available through National Meteorological and Hydrological Services. The use of observed climate monitoring products in the development of early warning systems is highlighted
THE FACTORS WHICH AFFECT PEOPLE SHARING KNOWLEDGE IN CHINA ONLINE FERTILITY HEALTH COMMUNITY
Creators: name: Zijun Ye
Publisher: name: University of the Thai Chamber of Commerce
Year: 2021
Subjects: knowledge share
online health community
personal factors
selfefficacy
social cognitive theory
interpersonal trust
perceive related advantage
perceive compatibility
community loyalty

description: UTCC International Journal of Business and Economics, 13, 3, 163-177
Bubble in the Whale: Identifying the Optical Counterparts and Extended Nebula for the Ultraluminous X-ray Sources in NGC 4631
Creators: name: Guo, Jing
name: Wu, Jianfeng
name: Feng, Hua
name: Cai, Zheng
name: Zhou, Ping
name: Zhou, Changxing
name: Zhang, Shiwu
name: Wang, Junfeng
name: Sun, Mouyuan
name: Gu, Wei-Min
name: Weng, Shan-Shan
name: Liu, Jifeng
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present a deep optical imaging campaign on the starburst galaxy NGC 4631 with CFHT/MegaCam. By supplementing the HST/ACS and Chandra/ACIS archival data, we search for the optical counterpart candidates of the five brightest X-ray sources in this galaxy, four of which are identified as ultraluminous X-ray sources (ULXs). The stellar environments of the X-ray sources are analyzed using the extinction-corrected color-magnitude diagrams and the isochrone models. We discover a highly asymmetric bubble nebula around X4 which exhibits different morphology in the H$α$ and [O III] images. The [O III]/H$α$ ratio map shows that the H$α$-bright bubble may be formed mainly via the shock ionization by the one-sided jet/outflow, while the more compact [O III] structure is photoionized by the ULX. We constrain the bubble expansion velocity and interstellar medium density with the MAPPINGS V code, and hence estimate the mechanical power injected to the bubble as $P_w \sim 5\times10^{40}$ erg s$^{-1}$ and the corresponding bubble age of $\sim7\times 10^{5}$ yr. Relativistic jets are needed to provide such level of mechanical power with a mass-loss rate of $\sim10^{-7}\ M_{\odot}\ \rm yr^{-1}$. Besides the accretion, the black hole spin is likely an additional energy source for the super-Eddington jet power.
description: 17 pages, 10 figures, accepted by ApJ
Manifolds without real projective or flat conformal structures
Creators: name: Ruffoni, Lorenzo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Differential Geometry (math.DG)
subject: Group Theory (math.GR)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57N16, 20F67, 53C23

description: In any dimension at least five we construct examples of closed smooth manifolds with the following properties: 1) they have neither real projective nor flat conformal structures; 2) their fundamental group is a non-elementary Gromov hyperbolic group. These examples are obtained via relative strict hyperbolization.
description: 10 pages, 2 figures, comments welcome
Buchbesprechungen
Creators: name: Jayme, Erik
Publisher: name: Kunstrechtsspiegel
Year: 2017

description: Rezensionen zu:

Wolfgang Graf Vitzthum (Hrsg.), Handbuch des Seerechts 800 Seiten, München: C.H. Beck 2006, ISBN-10: 3406546358, € 138.

Istituto per la Storia del Risorgimento Italiano und der Fototeca Nazionale - ICCD, Rom (Hrsg.), Ausstellungskatalog: „Distruzione e conservazione - La tutela del patrimonio artistico durante la prima guerra mondiale" (Zerstörung und Bewahrung - Der Schutz des Kulturguts während des ersten Weltkriegs), a cura di Paola Callegari e Marco Pizzo - Collaborazione scientifica e ricerca iconografica: Chiara Feudi, Ausstellung im Museo Centrale del Risorgimento, 3. November 2006 - 29. April 2007.
description: Kunstrechtsspiegel, Nr. 2 (2007): Kunstrechtsspiegel
Centrality dependence of the pseudorapidity density distribution for charged particles in Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 2.76 TeV
Creators: name: ALICE Collaboration
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present the first wide-range measurement of the charged-particle pseudorapidity density distribution, for different centralities (the 0-5%, 5-10%, 10-20%, and 20-30% most central events) in Pb-Pb collisions at $\sqrt{s_{\rm NN}} = 2.76$ TeV at the LHC. The measurement is performed using the full coverage of the ALICE detectors, $-5.0 < η< 5.5$, and employing a special analysis technique based on collisions arising from LHC "satellite" bunches. We present the pseudorapidity density as a function of the number of participating nucleons as well as an extrapolation to the total number of produced charged particles ($N_{\rm ch} = 17165 \pm 772$ for the 0-5% most central collisions). From the measured ${\rm d}N_{\rm ch}/{\rm d}η$ distribution we derive the rapidity density distribution, ${\rm d}N_{\rm ch}/{\rm d}y$, under simple assumptions. The rapidity density distribution is found to be significantly wider than the predictions of the Landau model. We assess the validity of longitudinal scaling by comparing to lower energy results from RHIC. Finally the mechanisms of the underlying particle production are discussed based on a comparison with various theoretical models.
description: 21 pages, 9 captioned figures, 2 tables, authors from page 16, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/592
Optical reflectivity and magnetoelectric effects on resonant plasmon modes in composite metal-multiferroic systems
Creators: name: C., H. Vivas
name: Vargas-Hernández, C.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The rôle of the magnetoelectric effect upon optical reflectivity is studied by adapting an electrodynamic-based model for a system composed by a 2D metallic film in contact with an extended multiferroic material exhibiting weak ferromagnetism. The well-known \emph{Nakayama's} boundary condition is reformulated by taking into account the magnetoelectric coupling as well as an externally applied magnetic field $\mathbf{B}$ in an arbitrary direction. It is found that the reflectance shows strong fluctuations for incident radiation close to the characteristic antiferromagnetic resonance frequency associated with the multiferroic material in the THz regime. These results were verified for a 10 nm metallic foil by using a finite element method (FEM) and the Rouard's approach, for a wide range of wavelengths (0.1 - 5 mm), showing good agreement with respect to Nakayama's outcome, for the particular material BaMnF$_4$.
description: 6 pages, 9 figures PACS Numbers: 73.20.-e, 75.82.+t, 78.20.Bh, 78.66.Bz
title: Σύστημα ενεργειακής διαχείρισης και καταγραφής και εξαγωγή καμπυλών φορτίου του κτιρίου Επιστημών
Creators: name: Βαβουρανάκης Προκόπιος
Publisher: name: Technical University of Crete
Year: 2012

description: Μη διαθέσιμο
Links and submersions to the plane on an open 3-manifold
Creators: name: Miyoshi, Shigeaki
Publisher: name: arXiv
Year: 2013
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57R30, 57R99, 57M99, 57R25

description: We study the realization problem which asks if a given oriented link in an open 3-manifold can be realized as a fiber of a submersion to the Euclidean plane. We correct the results obtained before by the author which contains an error and certain imperfection, and investigate a necessary and sufficient condition for the realization in the words of well-known invariants. We obtain the condition expressed by the first homology group with mod 2 coefficient.
description: 18 pages, 2 figures, Journal of Topology and Analysis (2016)
Stabilization of the Gear-Grimshaw system on a periodic domain
Creators: name: Capistrano-Filho, Roberto A.
name: Komornik, Vilmos
name: Pazoto, Ademir F.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: This paper is devoted to the study of a nonlinear coupled system of two Korteweg-de Vries equations in a periodic domain under the effect of an internal damping term. The system was introduced Gear and Grimshaw to model the interactions of two-dimensional, long, internal gravity waves propagation in a stratified fluid. Designing a time-varying feedback law and using a Lyapunov approach we establish the exponential stability of the solutions in Sobolev spaces of any positive integral order.
description: 18 pages
Need to move your class online in a hurry? Here's how
Creators: name: Baez, Johanna C.
name: Marquart, Matthea S.
name: Bidwell, Laurel
Publisher: name: Columbia University
Year: 2020
Subjects: Distance education
Web-based instruction

description: This op-ed provides support on moving your class online in a hurry. While most colleges and universities have entered the world of online education in one way or another, not every educational institution or instructor has already done this, which places many educators in the position of having to learn a new mode of instruction quickly. For those who are new to virtual classrooms, we encourage you to start with understanding and learning about the technology available, and preparing yourself, your students and your classrooms. This article provides support on what to focus on and where to look for resources.
Quasideuterons in Light Nuclei
Creators: name: Müther, H.
name: Srivastava, Praveen C.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The role of pairing correlations for nucleon pairs with isospin $T=1$ and $T=0$ is investigated for nuclei in the mass region $12 \leq A \leq 42$. For that purpose the two-nucleon densities resulting from nuclear shell-model calculations in one and two major shells are analyzed. Significant effects on the resulting energies are observed due to the formation of $T=0$ pairs. The formation of quasi-deuterons is maximal for symmetric nuclei with $N=Z$. The formation of $T=0$ pairs is less sensitive to the density of single-particle states close to the Fermi energy than the $T=1$ pairing and is relevant also for excitations across shell-closures. This robustness also explains why $T=0$ pairing does not lead to such a clear evidence in comparing energies of neighbored nuclei as the "odd-even mass staggering" due to the formation of $T=1$ pairing.
description: 8 pages, 5 figure
Four-body Semileptonic Charm Decays $D\to P_1P_2\ell^+ν_\ell $ Based on SU(3) Flavor Analysis
Creators: name: Wang, Ru-Min
name: Qiao, Yi
name: Zhang, Yi-Jie
name: Cheng, Xiao-Dong
name: Xu, Yuan-Guo
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Motivated by the significant experimental progress in probing semileptonic decays $D\to P_1P_2\ell^+ν_\ell~(\ell=μ,e)$, we analyze the branching ratios of the $D\to P_1P_2\ell^+ν_\ell $ decays with the non-resonant, the light scalar meson resonant and the vector meson resonant contributions in this work. We obtain the hadronic amplitude relations between different decay modes by the SU(3) flavor analysis, and then predict relevant branching ratios of the $D\to P_1P_2\ell^+ν_\ell$ decays by the present experimental data with $2 σ$ errors. Most of our predicted branching ratios are consistent with present experimental data within $2σ$ error bars, and others are consistent with the data within $3σ$ error bars. We find that some branching ratios of the non-resonant decays are on the order of $\mathcal{O}(10^{-3}-10^{-4})$, the vector meson resonant contributions are dominant in many decays, the non-resonant, the vector meson resonant and the scalar resonant contributions are all important in the $D^0\toηπ^-\ell^+ν_\ell$ decays, and both the non-resonant and the scalar resonant contributions are important in the $D^0\to K^-K^0\ell^+ν_\ell,η'π^-\ell^+ν_\ell$ and $D^+\to \overline{K}^0K^0\ell^+ν_\ell,π^0π^0\ell^+ν_\ell,ηπ^0\ell^+ν_\ell,η'π^0\ell^+ν_\ell$ decays. According to our predictions, many decay modes could be observed in the experiments like BESIII, LHCb and BelleII, and some decay modes might be measured in these experiments in near future.
description: 24 pages, 1 figure
Deep Learning Models on CPUs: A Methodology for Efficient Training
Creators: name: Fu, Quchen
name: Chukka, Ramesh
name: Achorn, Keith
name: Atta-fosu, Thomas
name: Canchi, Deepak R.
name: Teng, Zhongwei
name: White, Jules
name: Schmidt, Douglas C.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: GPUs have been favored for training deep learning models due to their highly parallelized architecture. As a result, most studies on training optimization focus on GPUs. There is often a trade-off, however, between cost and efficiency when deciding on how to choose the proper hardware for training. In particular, CPU servers can be beneficial if training on CPUs was more efficient, as they incur fewer hardware update costs and better utilizing existing infrastructure. This paper makes several contributions to research on training deep learning models using CPUs. First, it presents a method for optimizing the training of deep learning models on Intel CPUs and a toolkit called ProfileDNN, which we developed to improve performance profiling. Second, we describe a generic training optimization method that guides our workflow and explores several case studies where we identified performance issues and then optimized the Intel Extension for PyTorch, resulting in an overall 2x training performance increase for the RetinaNet-ResNext50 model. Third, we show how to leverage the visualization capabilities of ProfileDNN, which enabled us to pinpoint bottlenecks and create a custom focal loss kernel that was two times faster than the official reference PyTorch implementation.
Signature of gate-tunable magnetism in graphene grafted with Pt-porphyrins
Creators: name: Li, Chuan
name: Komatsu, Katsuyoshi
name: Clave, G.
name: Campidelli, S.
name: Filoramo, A.
name: Gueron, S.
name: Bouchiat, H.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Inducing magnetism in graphene holds great promises, such as controlling the exchange interaction with a gate electrode and generating exotic magnetic phases. Coating graphene with magnetic molecules or atoms has so far mostly lead to decreased graphene mobility. In the present work, we show that Pt-porphyrins adsorbed on graphene lead to an enhanced mobility and to gate-dependent magnetism. We report that porphyrins can be donor or acceptor, depending on graphene s initial doping. The porphyrins transfer charge and ionize around the charged impurities on graphene, decreasing the graphene doping and increasing its mobility. In addition, ionized porphyrins carry a magnetic moment. Using the sensitivity of mesoscopic transport to magnetism, in particular the superconducting proximity effect and conductance fluctuations, we explore the magnetic order induced in graphene by the interacting magnetic moments of the ionized porphyrins. Among the signatures of magnetism, we find two-terminal-magnetoresistance fluctuations with an odd component, a tell-tale sign of time reversal symmetry breaking at zero field, that does not exist in uncoated graphene sample. When graphene is connected to superconducting electrodes, the induced magnetism leads to a gate-voltage-dependent suppression of the supercurrent, modified magnetic interference patterns, and gate-voltage-dependent magnetic hysteresis. The magnetic signatures are greatest for long superconductor graphene superconductor junctions and for samples with the highest initial doping, compatible with a greater number of ionized and thus magnetic porphyrins. Our findings suggest that long-range magnetism is induced through graphene by the ionized porphyrins magnetic moment. This magnetic interaction is controlled by the density of carriers in graphene, a tunability that could be exploited in spintronic applications.
Tyler's and Maronna's M-estimators: Non-Asymptotic Concentration Results
Creators: name: Romanov, Elad
name: Kur, Gil
name: Nadler, Boaz
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: Tyler's and Maronna's M-estimators, as well as their regularized variants, are popular robust methods to estimate the scatter or covariance matrix of a multivariate distribution. In this work, we study the non-asymptotic behavior of these estimators, for data sampled from a distribution that satisfies one of the following properties: 1) independent sub-Gaussian entries, up to a linear transformation; 2) log-concave distributions; 3) distributions satisfying a convex concentration property. Our main contribution is the derivation of tight non-asymptotic concentration bounds of these M-estimators around a suitably scaled version of the data sample covariance matrix. Prior to our work, non-asymptotic bounds were derived only for Elliptical and Gaussian distributions. Our proof uses a variety of tools from non asymptotic random matrix theory and high dimensional geometry. Finally, we illustrate the utility of our results on two examples of practical interest: sparse covariance and sparse precision matrix estimation.
Wald tests of singular hypotheses
Creators: name: Drton, Mathias
name: Xiao, Han
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: Motivated by the problem of testing tetrad constraints in factor analysis, we study the large-sample distribution of Wald statistics at parameter points at which the gradient of the tested constraint vanishes. When based on an asymptotically normal estimator, the Wald statistic converges to a rational function of a normal random vector. The rational function is determined by a homogeneous polynomial and a covariance matrix. For quadratic forms and bivariate monomials of arbitrary degree, we show unexpected relationships to chi-square distributions that explain conservative behavior of certain Wald tests. For general monomials, we offer a conjecture according to which the reciprocal of a certain quadratic form in the reciprocals of dependent normal random variables is chi-square distributed.
description: Published at http://dx.doi.org/10.3150/14-BEJ620 in the Bernoulli (http://isi.cbs.nl/bernoulli/) by the International Statistical Institute/Bernoulli Society (http://isi.cbs.nl/BS/bshome.htm)
title: Δηλωτική σύνθεση διεπαφών για γεωγραφικά δεδομένα για το πλαίσιο JSF 2.0
Creators: name: Βολιώτης Δημήτριος
Publisher: name: Technical University of Crete
Year: 2012

description: Μη διαθέσιμο
Vacuum Stability and Radiative Symmetry Breaking of the Scale-Invariant Singlet Extension of Type II Seesaw Model
Creators: name: Dirgantara, Bayu
name: Kannike, Kristjan
name: Sreethawong, Warintorn
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The questions of the origin of electroweak symmetry breaking and neutrino mass are two major puzzles in particle physics. Neutrino mass generation requires new physics beyond the Standard Model and also suggests reconsideration of physics of symmetry breaking. The aim of this paper is to study radiative symmetry breaking in the singlet scalar extension of type II seesaw neutrino mass model. We derive bounded-from-below conditions for the scalar potential of the model in full generality for the first time. The Gildener-Weinberg approach is utilised in minimising the multiscalar potential. Upon imposing the bounded-from-below and perturbativity conditions, as well as experimental constraints from colliders, we find the parameter space of scalar quartic couplings that can radiatively realise electroweak symmetry breaking at one-loop level. To satisfy all the constraints, the masses of the heavy triplet-like Higgs bosons must be nearly degenerate. The evolution of the Higgs doublet quartic coupling $λ_{H}$ can be prevented from being negative up to the Planck scale.
description: 20 pages, 4 figures
title: Βελτιστοποίηση σχεδιασμού φωτοβολταϊκών συστημάτων μεγάλης κλίμακας
Creators: name: Σωτήρης Θεόδωρος
Publisher: name: Technical University of Crete
Year: 2012

description: Μη διαθέσιμο
$\mathcal{C}^{\infty}$-symmetries of distributions and integrability
Creators: name: Pan-Collantes, A. J.
name: Ruiz, A.
name: Muriel, C.
name: Romero, J. L.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: An extension of the notion of solvable structure for involutive distributions of vector fields is introduced. The new structures are based on a generalization of the concept of symmetry of a distribution of vector fields, inspired in the extension of Lie point symmetries to $\mathcal{C}^{\infty}$-symmetries for ODEs developed in the recent years. These new objects, named $\mathcal{C}^{\infty}$-structures, play a fundamental role in the integrability of the distribution: the knowledge of a $\mathcal{C}^{\infty}$-structure for a corank $k$ involutive distribution permits to find its integral manifolds by solving $k$ successive completely integrable Pfaffian equations. These results have important consequences for the integrability of differential equations. In particular, we derive a new procedure to integrate an $m$th-order ordinary differential equation by splitting the problem into $m$ completely integrable Pfaffian equations. This step-by-step integration procedure is applied to integrate completely several equations that cannot be solved by standard procedures.
Kinetic theory of spatially homogeneous systems with long-range interactions: II. Basic equations
Creators: name: Chavanis, Pierre-Henri
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We provide a short historic of the early development of kinetic theory in plasma physics and synthesize the basic kinetic equations describing the evolution of systems with long-range interactions derived in Paper I. We describe the evolution of the system as a whole and the relaxation of a test particle in a bath at equilibrium or out-of-equilibrium. We write these equations for an arbitrary long-range potential of interaction in a space of arbitrary dimension d. We discuss the scaling of the relaxation time with the number of particles for non-singular potentials. For always spatially homogeneous systems, the relaxation time of the system as a whole scales like N in d>1 and like N^2 (presumably) in d=1. For always spatially inhomogeneous systems, the relaxation time of the system as a whole scales like N in any dimension of space. For one dimensional systems undergoing a dynamical phase transition from a homogeneous to an inhomogeneous phase, we expect a relaxation time of the form N^δ with 1
Repository-Level Prompt Generation for Large Language Models of Code
Creators: name: Shrivastava, Disha
name: Larochelle, Hugo
name: Tarlow, Daniel
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Programming Languages (cs.PL)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: With the success of large language models (LLMs) of code and their use as code assistants (e.g. Codex used in GitHub Copilot), techniques for introducing domain-specific knowledge in the prompt design process become important. In this work, we propose a framework called Repo-Level Prompt Generator that learns to generate example-specific prompts using prompt proposals. The prompt proposals take context from the entire repository, thereby incorporating both the structure of the repository and the context from other relevant files (e.g. imports, parent class files). Our technique doesn't require any access to the weights of the LLM, making it applicable in cases where we only have black-box access to the LLM. We conduct experiments on the task of single-line code-autocompletion using code repositories taken from Google Code archives. We demonstrate that an oracle constructed from our prompt proposals gives a remarkably high relative improvement of 36% over Codex, showing the quality of these proposals. Further, we show that when we train a model to predict a prompt proposal, we can achieve significant performance gains over Codex and other baselines. We release our code, data, and trained checkpoints at: \url{https://github.com/shrivastavadisha/repo_level_prompt_generation}.
description: ICML 2023 (Camera-Ready version)