cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A hybrid method for calorimetry with subnanolitre samples using Schottky junctions
Creators: name: Hakala, T. K.
name: Toppari, J. J.
name: Torma, P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: A micrometer scale calorimeter realized by using Schottky junctions as a thermometer is presented. Combined with a hybrid experimental method, it enables simultaneous time-resolved measurements of variations in both the energy and the heat capacity of subnanolitre samples.
description: 6 pages, 6 figures
Dynamic modelling and control of a paper machine headbox
Creators: name: Tuladhar, Anil
Publisher: name: University of British Columbia
Year: 2009

description: Many paper mills have replaced their paper machine airpad headboxes with high speed hydraulic headboxes to increase production rate and also to improve the operational stability. However high speed hydraulic headboxes can contribute to higher Machine Direction (MD) basis weight variation. The wider bandwidth of the headbox may allow pulsations generated in the approach system to pass through it and to influence the jet velocity. This thesis is devoted to the analysis of one of such case where the replacement has resulted higher MD basis weight variation. There could be several reasons for the MD basis weight variation. The most likely sources are hydrodynamic pressure pulsations generated in the approach system and hydrodynamic disturbances produced within the headbox. A comprehensive study of the approach system has been carried out by recording pressure data from the major pieces of wet end equipment simultaneously. The thesis explains the experiments in detail highlighting the features of the sensors and data acquisition system. To study the possible generation of pulsations within the headbox^ and also to analyze the effectiveness of the headbox in suppressing pulsations from the approach system, a theoretical nonlinear dynamic model representing a typical Sym-Flo headbox has been derived. The headbox is a multivariable system, and so a multivariable Linear Quadratic Gaussian (LQG) controller has been used to control the level and the total head optimally. As there are constraints that should be imposed on the inputs and outputs, LQG has drawbacks, therefore a Model Predictive Controller (MPC) is investigated to accommodate input/output constraints. The resulting controllers are simulated for various situations and results are included in the thesis. The headbox model includes the slice hp opening as one of its manipulated variables and so it is possible to simulate grade change events. From the simulation results it is quite clear that the grade change can be achieved smoothly using a multivariate controller. The decoupling effect and marked reduction in interaction among the variables are achieved through multivariate control and are illustrated through various simulations.
Νηπιακή εκπαίδευση ή φροντίδα: ένα παιδαγωγικό δίλημμα
Creators: name: Διακίδου, Ειρήνη -
name: Φτιάκα, Ελένη
Publisher: name: Παιδαγωγική Επιθεώρηση
Year: 1998

description: This article examines the extent to which children under the age of four need education or care. This issue has recently been the focus of heated debate in both Greece and Cyprus. The purpose of the article is to present recent psychological and sociological evidence which underscores the necessity for high-quality early childhood education, it is argued that preschool children take advantage and profit from learning opportunities to the same extent as older children. For many of them, a rich educational environment can compensate for a lack of learning stimuli in the home. The article focuses on three areas that also represent the main goals of early childhood education: (a) the support of the development that lakes place, (b) the increase in school readiness, and (c) the prevention of future failure. The contribution of early childhood education in those three areas is necessary, critical, and significant. Finally, it is also argued that the extent of this contribution depends directly on the quality of the education provided.
description: Παιδαγωγική Επιθεώρηση, Vol. 27 (1998)
Exploring the Sensitivity of LLMs' Decision-Making Capabilities: Insights from Prompt Variation and Hyperparameters
Creators: name: Loya, Manikanta
name: Sinha, Divya Anand
name: Futrell, Richard
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: The advancement of Large Language Models (LLMs) has led to their widespread use across a broad spectrum of tasks including decision making. Prior studies have compared the decision making abilities of LLMs with those of humans from a psychological perspective. However, these studies have not always properly accounted for the sensitivity of LLMs' behavior to hyperparameters and variations in the prompt. In this study, we examine LLMs' performance on the Horizon decision making task studied by Binz and Schulz (2023) analyzing how LLMs respond to variations in prompts and hyperparameters. By experimenting on three OpenAI language models possessing different capabilities, we observe that the decision making abilities fluctuate based on the input prompts and temperature settings. Contrary to previous findings language models display a human-like exploration exploitation tradeoff after simple adjustments to the prompt.
description: EMNLP 2023
Identification of AKARI infrared sources by Deep HSC Optical Survey: Construction of New Band-Merged Catalogue in the NEP-Wide field
Creators: name: Kim, Seong Jin
name: Oi, Nagisa
name: Goto, Tomotsugu
name: Ikeda, Hiroyuki
name: Ho, Simon C. -C.
name: Shim, Hyunjin
name: Toba, Yoshiki
name: Hwang, Ho Seong
name: Hashimoto, Tetsuya
name: Barrufet, Laia
name: Malkan, Matthew
name: Kim, Helen K.
name: Huang, Ting-Chi
name: Matsuhara, Hideo
name: Miyaji, Takamitsu
name: Pearson, Chris
name: Serjeant, Stephen
name: Santos, Daryl Joe
name: Kim, Eunbin
name: Pollo, Agnieszka
name: Jeong, Woong-Seob
name: Wang, Ting-Wen
name: Momose, Rieko
name: Takagi, Toshinobu
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The north ecliptic pole (NEP) field is a natural deep field location for many satellite observations. It has been targeted manytimes since it was surveyed by the AKARI space telescope with its unique wavelength coverage from the near- to mid-infrared(mid-IR). Many follow-up observations have been carried out and made this field one of the most frequently observed areas witha variety of facilities, accumulating abundant panchromatic data from X-ray to radio wavelength range. Recently, a deep opticalsurvey with the Hyper Suprime-Cam (HSC) at the Subaru telescope covered the NEP-Wide (NEPW) field, which enabled us toidentify faint sources in the near- and mid-IR bands, and to improve the photometric redshift (photo-z) estimation. In this work,we present newly identified AKARI sources by the HSC survey, along with multi-band photometry for 91,861 AKARI sourcesobserved over the NEPW field. We release a new band-merged catalogue combining various photometric data from GALEXUV to the submillimetre (sub-mm) bands (e.g., Herschel/SPIRE, JCMT/SCUBA-2). About 20,000 AKARI sources are newlymatched to the HSC data, most of which seem to be faint galaxies in the near- to mid-infrared AKARI bands. This cataloguemotivates a variety of current research, and will be increasingly useful as recently launched (eROSITA/ART-XC) and futurespace missions (such as JWST, Euclid, and SPHEREx) plan to take deep observations in the NEP field.
description: 17 pages, 12 Figures, accepted in MNRAS, (in press)
Supersymmetric renormalization prescription in N = 4 super-Yang--Mills theory
Creators: name: Baulieu, Laurent
name: Bossard, Guillaume
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Using the shadow dependent decoupled Slavnov-Taylor identities associated to gauge invariance and supersymmetry, we discuss the renormalization of the N=4 super-Yang-Mills theory and of its coupling to gauge-invariant operators. We specify the method for the determination of non-supersymmetric counterterms that are needed to maintain supersymmetry.
Hemispherical power asymmetry in the three-year Wilkinson Microwave Anisotropy Probe sky maps
Creators: name: Eriksen, H. K.
name: Banday, A. J.
name: Gorski, K. M.
name: Hansen, F. K.
name: Lilje, P. B.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We consider the issue of hemispherical power asymmetry in the three-year WMAP data, adopting a previously introduced modulation framework. Computing both frequentist probabilities and Bayesian evidences, we find that the model consisiting of an isotropic CMB sky modulated by a dipole field, gives a substantially better fit to the observations than the purely isotropic model, even when accounting for the larger prior volume. For the ILC map, the Bayesian log-evidence difference is ~1.8 in favour of the modulated model, and the raw improvement in maximum log-likelihood is 6.1. The best-fit modulation dipole axis points toward (l,b) = (225 deg,-27 deg), and the modulation amplitude is 0.114, in excellent agreement with the results from the first-year analyses. The frequentist probability of obtaining such a high modulation amplitude in an isotropic universe is ~1%. These results are not sensitive to data set or sky cut. Thus, the statistical evidence for a power asymmetry anomaly is both substantial and robust, although not decisive, for the currently available data. Increased sky coverage through better foreground handling and full-sky and high-sensitivity polarization maps may shed further light on this issue.
description: 4 pages, 2 figures, accepted for publication in ApJL
Ο Μέγας Κανών του αγίου Ανδρέα Κρήτης: ιστορική, λειτουργική, αισθητική, θεολογική και ηθική διευρεύνηση
Creators: name: Παπαβαρνάβας, Δημήτριος Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: Μέγας Κανών
Αγιος Ανδρέας Κρήτης
Great Kanon
Saint Andrew of Krete

description: Η εργασία αυτή έχει ως σκοπό να αναδείξει τον τεράστιο πλούτο και την μεγάλη θεολογική αξία του Μεγάλου κανόνος. Αρχικά παρουσιάζεται συνοπτικά ο βίος του αγίου Ανδρέα αλλά και τα υπόλοιπα έργα του. Στη συνέχεια τονίζεται η σχέση του Μεγάλου κανόνος με τα προσωπα και τα γεγονότα της Αγίας Γραφής. Ακολουθούν τα λειτουργικά στοιχεία και στη συνέχεια γίνεται αισθητική αλλά και δογματική ανάλυση ορισμένων τροπαρίων. Τέλος αναδυκνείεται η ασκητική του Μεγάλου κανόνος και τα μέσα εκείνα δια των οποίων ο άνθρωπος αναβιβάζεται δια της πράξεως στην θεωρία.
description: This paper aims to highlight the wealth and great theological value of the Grand Canon. Initially outlines the life of Saint Andrew and the other works. Then it emphasizes the relationship of the Great Canon with persons and events of the Bible. Following are the functional elements and then becomes aesthetics and doctrinal analysis of some hymns. Finally highlights the ascetic Grand rule and those instruments by which man is raised by the measure in theory.
Αποτελεσματικότητα της χρήσης των οικονομικών πόρων και λειτουργία της αγοράς στην εκπαίδευση
Creators: name: Weiss, Manfred
Publisher: name: Παιδαγωγική Επιθεώρηση
Year: 1997

description: Παιδαγωγική Επιθεώρηση, Vol. 26 (1997)
Classification of three generation models by orbifolding magnetized $T^2 \times T^2$
Creators: name: Hoshiya, Kouki
name: Kikuchi, Shota
name: Kobayashi, Tatsuo
name: Ogawa, Yuya
name: Uchida, Hikaru
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study orbifolding by the $\mathbb{Z}_2^{\rm (per)}$ permutaion of $T^2_1 \times T^2_2$ with magnetic fluxes and its twisted orbifolds. We classify the possible three generation models which lead to non-vanishing Yukawa couplings on the magnetized $T^2_1 \times T^2_2$ and orbifolds including the $\mathbb{Z}_2^{\rm (per)}$ permutation and $\mathbb{Z}_2^{\rm (t)}$ twist. We also study the modular symmetry on such orbifold models. As an illustrating model, we examine the realization of quark masses and mixing angles.
description: 31 pages
Dispersion Theory and the Low Energy Constants for Neutral Pion Photoproduction
Creators: name: Pasquini, B.
name: Drechsel, D.
name: Tiator, L.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The relativistic amplitudes of pion photoproduction are evaluated by dispersion relations at t=const. The imaginary parts of the amplitudes are taken from the MAID model covering the absorption spectrum up to center-of-mass energies W = 2.2 GeV. For sub-threshold kinematics the amplitudes are expanded in powers of the two independent variables νand t related to energy and momentum transfer. Subtracting the loop corrections from this power series allows one to determine the counter terms of covariant baryon chiral perturbation theory. The proposed continuation of the amplitudes into the unphysical region provides a unique framework to derive the low-energy constants to any given order as well as an estimate of the higher order terms by global properties of the absorption spectrum.
description: 13 pages, 6 figures, 5 tables
Evolving Dynamic Change and Exchange of Genotype Encoding in Genetic Algorithms for Difficult Optimization Problems
Creators: name: Bercachi, Maroun
name: Collard, Philippe
name: Clergue, Manuel
name: Verel, Sébastien
Publisher: name: arXiv
Year: 2008
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: The application of genetic algorithms (GAs) to many optimization problems in organizations often results in good performance and high quality solutions. For successful and efficient use of GAs, it is not enough to simply apply simple GAs (SGAs). In addition, it is necessary to find a proper representation for the problem and to develop appropriate search operators that fit well to the properties of the genotype encoding. The representation must at least be able to encode all possible solutions of an optimization problem, and genetic operators such as crossover and mutation should be applicable to it. In this paper, serial alternation strategies between two codings are formulated in the framework of dynamic change of genotype encoding in GAs for function optimization. Likewise, a new variant of GAs for difficult optimization problems denoted {\it Split-and-Merge} GA (SM-GA) is developed using a parallel implementation of an SGA and evolving a dynamic exchange of individual representation in the context of Dual Coding concept. Numerical experiments show that the evolved SM-GA significantly outperforms an SGA with static single coding.
Activity sensitive spectral lines of M dwarfs in the CARMENES visible and near infrared spectral range: impact on radial velocity determinations and stellar parameters determination
Creators: name: López-Gallifa, Álvaro
name: Montes, David
name: Labarga, Fernando
name: Marfil, Emilo
name: Tabernero, Hugo M.
name: Caballero, José A.
name: Lafarga, Marina
name: Jeffers, Sandra V.
name: Reiners, Ansgar
name: Ribas, Ignasi
name: Quirrenbach, Andreas
name: Amado, Pedro J.
Publisher: name: Zenodo
Year: 2021
Subjects: Cool Stars on the main sequence
Stellar activity
Mangetic activity
chromospheric activity

description: In this contribution we summarize our project devoted to identify activity-sensitive spectral lines in the CARMENES visible and near-infrared spectral range of M dwarfs. The aim is to contribute to solve the problem of stellar activity in RV measurements to search for exoplanets around
 these stars and in the determination of precise stellar parameters. To identify lines with a significant chromospheric contribution, apart from well known
 activity indicators (Na I D 1 D 2 He I D 3 Hα, and Ca II IRT lines, He I 10830 Å, Paγ and Paβ lines), we have used the spectral subtraction technique
 using our Python code iSTARMOD Labarga Montes 2020 choosing as reference the spectrum of the star with lower activity. We confirm the new
 activity sensitive lines by analysing the correlation with the other well known activity indicators in the same spectra and their temporal evolution in two
 particular active stars EV Lac (EV Lacertae, M 3.5) and YZ CMi (YZ Canis Minoris, M 4.5). They are specially active stars with strong flares and strong
 magnetic fields. In addition, we analyse line by line the template spectrum (co added of all the individual spectra available) of these two
 stars applying also the spectral subtraction using in this case as reference star an inactive M dwarf star of similar spectral type to search for
 magnetically sensitive lines, that is lines with detectable Zeeman broadening. After this analysis on YZ CMi and EV Lac, we have found 84 and 97
 chromospheric activity-sensitive lines and 160 and 170 magnetically-sensitive spectral lines respectively. We are now studying the impact of the
 elimination of the activity sensitive spectral lines identified in this way on the RV determination using cross correlation functions with weighted binary
 masks as in Lafarga et al. (2020) and on the stellar parameters determination by spectral synthesis as in Marfil et al. (2021).
description: {"references": ["Labarga , F. & Montes, D. 2020, in Contributions to the XIV.0 Scientific Meeting(virtual) of the Spanish Astronomical Society, 153", "Lafarga, M. et al. 2020, A&A, 636, A36", "Marfil et al. (2021) in prep."]}
The LISE package: solvers for static and time-dependent superfluid local density approximation equations in three dimensions
Creators: name: Jin, Shi
name: Roche, Kenneth J.
name: Stetcu, Ionel
name: Abdurrahman, Ibrahim
name: Bulgac, Aurel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Nuclear implementation of the density functional theory (DFT) is at present the only microscopic framework applicable to the whole nuclear landscape. The extension of DFT to superfluid systems in the spirit of the Kohn-Sham approach, the superfluid local density approximation (SLDA) and its extension to time-dependent situations, time-dependent superfluid local density approximation (TDSLDA), have been extensively used to describe various static and dynamical problems in nuclear physics, neutron star crust, and cold atom systems. In this paper, we present the codes that solve the static and time-dependent SLDA equations in three-dimensional coordinate space without any symmetry restriction. These codes are fully parallelized with the message passing interface (MPI) library and take advantage of graphic processing units (GPU) for accelerating execution. The dynamic codes have checkpoint/restart capabilities and for initial conditions one can use any generalized Slater determinant type of wave function. The code can describe a large number of physical problems: nuclear fission, collisions of heavy ions, the interaction of quantized vortices with nuclei in the nuclear star crust, excitation of superfluid fermion systems by time dependent external fields, quantum shock waves, domain wall generation and propagation, the dynamics of the Anderson-Bogoliubov-Higgs mode, dynamics of fragmented condensates, vortex rings dynamics, generation and dynamics of quantized vortices, their crossing and recombinations and the incipient phases of quantum turbulence.
Attention-based Interactive Disentangling Network for Instance-level Emotional Voice Conversion
Creators: name: Chen, Yun
name: Yang, Lingxiao
name: Chen, Qi
name: Lai, Jian-Huang
name: Xie, Xiaohua
Publisher: name: arXiv
Year: 2023
Subjects: subject: Audio and Speech Processing (eess.AS)
subject: Artificial Intelligence (cs.AI)
subject: Sound (cs.SD)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Emotional Voice Conversion aims to manipulate a speech according to a given emotion while preserving non-emotion components. Existing approaches cannot well express fine-grained emotional attributes. In this paper, we propose an Attention-based Interactive diseNtangling Network (AINN) that leverages instance-wise emotional knowledge for voice conversion. We introduce a two-stage pipeline to effectively train our network: Stage I utilizes inter-speech contrastive learning to model fine-grained emotion and intra-speech disentanglement learning to better separate emotion and content. In Stage II, we propose to regularize the conversion with a multi-view consistency mechanism. This technique helps us transfer fine-grained emotion and maintain speech content. Extensive experiments show that our AINN outperforms state-of-the-arts in both objective and subjective metrics.
description: Accepted by INTERSPEECH 2023
Migration of Comets to the Terrestrial Planets
Creators: name: Ipatov, S. I.
name: Mather, J. C.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We studied the orbital evolution of Jupiter-family comets (JFCs), Halley-type comets (HTCs), and long-period comets, and probabilities of their collisions with planets. In our runs the probability of a collision of one object with the Earth could be greater than the sum of probabilities for thousands of other objects. Even without a contribution of such a few bodies, the probability of a collision of a former JFC with the Earth was greater than 4$\cdot10^{-6}$. This probability is enough for delivery of all the water to Earth's oceans during formation of the giant planets. The ratios of probabilities of collisions of JFCs and HTCs with Venus and Mars to the mass of a planet usually were not smaller than that for Earth. Among 30,000 considered objects with initial orbits close to those of JFCs, a few objects got Earth-crossing orbits with semi-major axes $a$$
description: 10 pages. Paper submitted to Proc. of the IAU Symposium No. 236 "Near Earth Objects, Our Celestial Neighbors: Opportunity and Risk" (Prague, Czech Republic, August 14-18, 2006), edited by A. Milani, G.B. Valsecchi and D. Vokrouhlicky
Multi-modal MRI sensitive to age: Focus on early brain development in infants
Creators: name: Dubois, Jessica
Publisher: name: arXiv
Year: 2023
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: Image and Video Processing (eess.IV)
subject: FOS: Biological sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Exploring the developing brain is a major issue in understanding what enables children to acquire amazing abilities, and how early disruptions can lead to a wide range of neurodevelopmental disorders. MRI plays a key role here by providing a non-invasive way to link brain and behavioral changes. Several modalities are used in newborns and infants to characterize the properties of the developing brain, from growth, morphology to microstructure and functional specialization. Recent multi-modal studies have sought to couple complementary MRI markers to provide a more integrated view of brain development. In this chapter, we describe successively how these approaches have made it possible to assess the early maturation of brain tissues, to link different aspects of structural development, and to compare structural and functional brain development.
Understanding the morphotropic phase boundary of perovskite solid solutions as a frustrated state
Creators: name: Teh, Ying Shi
name: Li, Jiangyu
name: Bhattacharya, Kaushik
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Perovskite solid solutions that have a chemical composition A(C$_x$D$_{1-x})$O$_3$ with transition metals C and D substitutionally occupying the B site of a perovskite lattice are attractive in various applications for their dielectric, piezoelectric and other properties. A remarkable feature of these solid solutions is the \emph{morphotropic phase boundary} (MPB), the composition across which the crystal symmetry changes. Critically, it has long been observed that the dielectric and piezoelectric as well as the ability to pole a ceramic increases dramatically at the MPB. While this has motivated much study of perovskite MPBs, a number of important questions about the role of disorder remain unanswered. We address these questions using a new approach based on the random-field Ising model with long-range interactions that incorporates the basic elements of the physics at the meso-scale. We show that the MPB emerges naturally in this approach as a frustrated state where stability is exchanged between two well-defined phases. Specifically, long-range interactions suppress the disorder at compositions away from MPB but are unable to do so when there is an exchange of stability. Further, the approach also predicts a number of experimentally observed features like the fragmented domain patterns and superior ability to pole at the MPB. The insights from this model also suggest the possibility of entirely new materials with strong ferroelectric-ferromagnetic coupling using an MPB.
12ο Ευρωπαϊκό Συμπόσιο Oberinntal χτίζουμε γέφυρες σε μια Ενωμένη Ευρώπη
Creators: name: Κεσίδου, Αναστασία
Publisher: name: Παιδαγωγική Επιθεώρηση
Year: 1997

description: Παιδαγωγική Επιθεώρηση, Vol. 26 (1997)
Phase-domain synchronous generator model for transients simulation
Creators: name: Louie, Kwok Wai
Publisher: name: University of British Columbia
Year: 2009

description: Three-phase synchronous generators which convert mechanical energy into electrical energy are the main power sources of power systems. In this thesis a phase-domain synchronous generator model which is developed directly in the stator reference frame is presented. The electrical and mechanical parts of a three-phase synchronous generator are separately modeled by two different, sets of differential equations which are discretized with the trapezoidal rule of integration. These two parts are linked together by the rotor position angle and the electromagnetic torque generated by the interactions of the different magnetic fields, resulting in a linear generator model. In order to represent the generator more accurately, the linear generator model is modified to include magnetic saturation effects, resulting in a non-linear generator model. A formula is developed to account for the saturation as a function of the rotor angle and the total magnetomotive force angle. The machine parameters in the stator reference frame are obtained from the given characteristic quantities by a suitable data conversion scheme. To verify the linear generator model, a comparison between the simulation results of a three-phase short-circuit at the terminals of the machine obtained with the new linear model and the model in the EMTP is conducted.
Understanding nucleon structure using lattice simulations
Creators: name: Schroers, Wolfram
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: This review focuses on the discussion of three key results of nucleon structure calculations on the lattice. These three results are the quark contribution to the nucleon spin, J_q, the nucleon-Delta transition form factors, and the nucleon axial coupling, g_A. The importance for phenomenology and experiment is discussed and the requirements for future simulations are pointed out.
description: 3 pages, 1 figure. Invited talk at the IV International Conference on Quarks and Nuclear Physics (QNP06), 5th June 2006 - 10th June 2006, Madrid. The original publication is available at www.eurphysj.org
Design Space Exploration of Approximate Computing Techniques with a Reinforcement Learning Approach
Creators: name: Saeedi, Sepide
name: Savino, Alessandro
name: Di Carlo, Stefano
Publisher: name: arXiv
Year: 2023
Subjects: subject: Hardware Architecture (cs.AR)
subject: Machine Learning (cs.LG)
subject: Performance (cs.PF)
subject: FOS: Computer and information sciences
subject: C.1

description: Approximate Computing (AxC) techniques have become increasingly popular in trading off accuracy for performance gains in various applications. Selecting the best AxC techniques for a given application is challenging. Among proposed approaches for exploring the design space, Machine Learning approaches such as Reinforcement Learning (RL) show promising results. In this paper, we proposed an RL-based multi-objective Design Space Exploration strategy to find the approximate versions of the application that balance accuracy degradation and power and computation time reduction. Our experimental results show a good trade-off between accuracy degradation and decreased power and computation time for some benchmarks.
Some isoperimetric inequalities with application to the Stekloff problem
Creators: name: Henrot, Antoine
name: Philippin, Gérard A.
name: Safoui, Abdesselam
Publisher: name: arXiv
Year: 2008
Subjects: subject: Analysis of PDEs (math.AP)
subject: Optimization and Control (math.OC)
subject: FOS: Mathematics
subject: 35P15, 52A40

description: In this paper we establish isoperimetric inequalities for the product of some moments of inertia. As an application, we obtain an isoperimetric inequality for the product of the $N$ first nonzero eigenvalues of the Stekloff problem in $\mathbb{R}^N$.
SSRS Spotlight Poll: Marijuana and Pets
Creators: name: SSRS
Publisher: name: Roper Center for Public Opinion Research
Year: 2019

description: Marijuana for medical use (1); marijuana for recreational use (1); marijuana or alcohol more harmful to health (1); marijuana legal in your state (1); personal use of marijuana (1); war on drugs (1); type of pet owned (1); number of pets owned (1); method of acquiring most recent pet (1); dressing up pets for holidays/events (1); sleeping with pets (1); buying gifts for pets (1).
José Monteiro da Rocha (1734-1819) and his work of 1782 on the determination of comet orbits
Creators: name: Figueiredo, Fernando B.
name: Fernandes, João M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: In 1782 José Monteiro da Rocha, astronomer and professor of the University of Coimbra, presented in a public session of the Royal Academy of Sciences of Lisbon a memoir on the problem of the determination of the comets' orbits. Only in 1799, the "Determinação das Orbitas dos Cometas" (Determination of the orbits of comets) would be published in the Academy's memoires. In that work, Monteiro da Rocha presents a method for solving the problem of the determination of the parabolic orbit of a comet from three observations. Monteiro da Rocha's method is essentially the same method proposed by Olbers and published under von Zach's sponsorship two years before, in 1797. To have been written and published in Portuguese was certainly a hindrance for its dissemination among the international astronomical community. In this article, we intend to present Monteiro da Rocha's method and trying to see to what extent Gomes Teixeira's assertion (Teixeira 1934) that Monteiro da Rocha and Olbers must figure together in the history of astronomy, as the first inventors of a practical and easy method for the determination of parabolic orbits of comets, is justified.
description: Accepted in Journal for the History of Astronomy
SM antideuteron background to indirect dark matter signals in galactic cosmic rays
Creators: name: Coral, Diego Mauricio Gomez
name: Menchaca-Rocha, Arturo
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Antideuteron production cross-sections estimated using EPOS-LHC with a coalescence afterburner, tuned to reproduce published experimental data over a wide range of energy were used here as input to the galactic propagator code GALPROP, validated with comparing to existing proton, helium fluxes as well as boron-to-carbon ratio data. The resulting near-Earth antideuteron flux, including solar modulation, is compared to previous estimates. An overall factor of two increments in the antideuteron flux is predicted, the origin of which is also discussed. However, this standard model source of antideuteron background still lies well below the AMS-02, and the expected GAPS, sensitivities, as well as the fluxes predicted by several dark matter models.
Fermi Liquid Theory of a Fermi Ring
Creators: name: Stauber, T.
name: Peres, N. M. R.
name: Guinea, F.
name: Neto, A. H. Castro
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the effect of electron-electron interactions in the electronic properties of a biased graphene bilayer. This system is a semiconductor with conduction and valence bands characterized by an unusual ``mexican-hat'' dispersion. We focus on the metallic regime where the chemical potential lies in the ``mexican-hat'' in the conduction band, leading to a topologically non-trivial Fermi surface in the shape of a ring. We show that due to the unusual topology of the Fermi surface electron-electron interactions are greatly enhanced. We discuss the possibility of an instability towards a ferromagnetic phase due to this enhancement. We compute the electronic polarization function in the random phase approximation and show that, while at low energies the system behaves as a Fermi liquid (albeit with peculiar Friedel oscillations), at high frequencies it shows a highly anomalous response when compare to ordinary metals.
description: 10 pages, 10 figures
Metallicity structure in X-ray bright galaxy groups
Creators: name: Rasmussen, Jesper
name: Ponman, Trevor J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Using Chandra X-ray data of a sample of 15 X-ray bright galaxy groups, we present preliminary results of a coherent study of the radial distribution of metal abundances in the hot gas in groups. The iron content in group outskirts is found to be lower than in clusters by a factor of ~2, despite showing mean levels in the central regions comparable to those of clusters. The abundance profiles are used to constrain the contribution from supernovae type Ia and II to the chemical enrichment and thermal energy of the intragroup medium at different group radii. The results suggest a scenario in which a substantial fraction of the chemical enrichment of groups took place in filaments prior to group collapse.
description: 5 pages, 2 figures. To appear in the proceedings of ESO Astrophysics Symposia: "Groups of Galaxies in the Nearby Universe", eds. I. Saviane, V. Ivanov, J. Burissova (Springer)
Δια βίου μάθηση - κατευθυντήριες γραμμές για την εκπαιδευτική πολιτική και το μέλλον της εκπαίδευσης των ενηλικών
Creators: name: Tippelt, Rudolf
Publisher: name: Παιδαγωγική Επιθεώρηση
Year: 1997

description: Παιδαγωγική Επιθεώρηση, Vol. 26 (1997)
Το ζήτημα της ευθύνης του ανωτέρου κατά τη νομολογία του ΔΠΔΓ.
Creators: name: Μουσελίμη, Παρασκευή Ναταλία
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: Ευθύνη ανωτέρου
Ευθύνη του διοικητή
Νομολογία του ΔΠΔΓ
Superior Responsibility
Command Responsibility
Case Law of ICTY

description: Η παρούσα διπλωματική εργασία πραγματεύεται το ζήτημα του δόγματος της ευθύνης ανωτέρου, όπως αυτό αντιμετωπίστηκε από τη νομολογία του Διεθνούς Δικαστηρίου για την πρώην Γιουγκοσλαβία. Εκκινεί από την καταγραφή των γεγονότων που οδήγησαν στη διάλυση της πρώην Γιουγκοσλαβίας και στη σύσταση του Διεθνούς Δικαστηρίου για την πρώην Γιουγκοσλαβία και στη συνέχεια αναλύει το δόγμα της ευθύνης του ανωτέρου για τις εγκληματικές πράξεις των υφισταμένων του μέχρι το Δεύτερο Παγκόσμιο Πόλεμο. Αναφέρονται η Δίκη του στρατηγού Yamashita και οι Υποθέσεις Hostage και Command σε ξεχωριστά κεφάλαια, καθώς αντιμετώπισαν εκτενώς το ζήτημα της ιεραρχικής ευθύνης του στρατιωτικού διοικητή σε περίπτωση διάπραξης από τους υφισταμένους του εγκληματικών πράξεων. Ακολουθούν οι σημαντικότερες αποφάσεις του ΔΠΔΓ, όπως η απόφαση Celebici, όπου το ΔΠΔΓ ανέπτυξε εκτενώς τις θέσεις του πάνω στο ζήτημα της ευθύνης ανωτέρου για τις παράνομες πράξεις των υφισταμένων του ερμηνεύοντας την Τρίτη παράγραφο του Άρθρου 7 του Καταστατικού του και διαμορφώνοντας τη νομολογία του πάνω στο ζήτημα.
description: This thesis deals with the question of the doctrine of superior responsibility, as it was handled by the case law of the International Tribunal for the Former Yugoslavia. Starts the recording of the events that led to the breakup of the former Yugoslavia and the creation of the International Tribunal for the former Yugoslavia and then analyzes the doctrine of superior responsibility for the criminal acts of his subordinates until the Second World War. Indicate the Trial of General Yamashita and Hostage and High Command Cases in separate chapters, as extensively addressed the issue of the hierarchical responsibility of a military commander in the event of his subordinates to commit the crimes. Below are the most important decisions of the ICTY, as the decision Celebici, where the ICTY extensively developed its positions on the issue of liability higher for unlawful acts of his subordinates in interpreting the third paragraph of Article 7 of the Statute.
Uniqueness in Discrete Tomography of Planar Model Sets
Creators: name: Huck, Christian
Publisher: name: arXiv
Year: 2007
Subjects: subject: Metric Geometry (math.MG)
subject: FOS: Mathematics
subject: 52C23 (primary); 11R04, 11R06, 52A10, 52B20, 82D99 (secondary)

description: The problem of determining finite subsets of characteristic planar model sets (mathematical quasicrystals) $\varLambda$, called cyclotomic model sets, by parallel $X$-rays is considered. Here, an $X$-ray in direction $u$ of a finite subset of the plane gives the number of points in the set on each line parallel to $u$. For practical reasons, only $X$-rays in $\varLambda$-directions, i.e., directions parallel to non-zero elements of the difference set $\varLambda - \varLambda$, are permitted. In particular, by combining methods from algebraic number theory and convexity, it is shown that the convex subsets of a cyclotomic model set $\varLambda$, i.e., finite sets $C\subset \varLambda$ whose convex hulls contain no new points of $\varLambda$, are determined, among all convex subsets of $\varLambda$, by their $X$-rays in four prescribed $\varLambda$-directions, whereas any set of three $\varLambda$-directions does not suffice for this purpose. We also study the interactive technique of successive determination in the case of cyclotomic model sets, in which the information from previous $X$-rays is used in deciding the direction for the next $X$-ray. In particular, it is shown that the finite subsets of any cyclotomic model set $\varLambda$ can be successively determined by two $\varLambda$-directions. All results are illustrated by means of well-known examples, i.e., the cyclotomic model sets associated with the square tiling, the triangle tiling, the tiling of Ammann-Beenker, the Tübingen triangle tiling and the shield tiling.
description: 60 pages, 5 figures
Signatures of magnetostriction and spin-phonon coupling in magnetoelectric hexagonal 15R-BaMnO3
Creators: name: Poojitha, Bommareddy
name: Rathore, Anjali
name: Kumar, Ankit
name: Saha, Surajit
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Spin-phonon coupling, the interaction of spins with surrounding lattice is a key parameter to understand the underlying physics of multiferroics and engineer their magnetization dynamics. Elementary excitations in multiferroic materials are strongly influenced by spin-phonon interaction, making Raman spectroscopy a unique tool to probe these coupling(s). Recently, it has been suggested that the dielectric and magnetic properties of 15R-type hexagonal BaMnO3 are correlated through the spin-lattice coupling. Here, we report the observation of an extensive renormalization of the Raman spectrum of 15R-BaMnO3 at 230 K, 280 K, and 330 K. Magnetic measurements reveal the presence of a long-range and a short-range magnetic ordering in 15R-BaMnO3 at 230 K and 330 K, respectively. The Raman spectrum shows the appearance of new Raman modes in the magnetically ordered phases. Furthermore, an additional Raman phonon appears below ~ 280 K, possibly arising from a local lattice-distortion due to the displacement of Mn-ions, that exhibits anomalous shift with temperature. The origin of the observed renormalization and phonon anomalies in Raman spectra are discussed based on the evidences from temperature- and magnetic-field-dependent Raman spectra, temperature-dependent x-ray diffraction, magnetization, and specific heat measurements. Our results indicate the presence of magnetostriction and spin-phonon coupling in 15R-BaMnO3 thus suggesting that the optical phonons are strongly correlated to its magnetoelectric properties.
description: 50 pages, 27 figures, 8 tables
Η «Φιλοσοφία» του Εναλλακτικού Τουρισμού: το Παράδειγμα της Σαμοθράκης
Creators: name: Καραμπατάκη, Μαρία Νικολάου
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: Αυθεντικότητα
Οριακότητα
ταυτότητα
Ετεροτοπία
Authenticity
Liminality
Identity
Hererotopy

description: Η παρούσα εργασία εστιάζει στους εναλλακτικούς ταξιδιώτες της Σαμοθράκης που επισκέπτονται κάθε καλοκαίρι το νησί. Πρόκειται για νέους μεσοαστούς, οι οποίοικαταναλώνουν προϊόντα και υπηρεσίες για να εκφράσουν την αμφισβήτησή τους στην καπιταλιστική κοινωνία και την προσήλωσή τους στην ανεξαρτησία και την κινητικότητα.Μέσα από την επιτόπια έρευνα ανιχνεύονται οι πρακτικές και οι λόγοι των πληροφορητώνκαι οι αντιφατικοί τρόποι με τους οποίους διαπραγματεύονται τις ταυτότητες και σχετίζονται με τον τόπο.Με τηνενσώματη ενεργητικήβίωση του τόπου,που προσλαμβάνεται ως οριακός,επικίνδυνοςκαι αγνός, εξασφαλίζουν την αυθεντικότητα της εμπειρίας και μέσα από την ταύτιση με τη φύση,που αποτελεί ένα είδος πρότυπου γι’ αυτούς, διεκδικούν την αυτοβελτίωση.
description: The present thesis focuseson the alternative travelers of Samothrace island.They are mostly middle-class young people who make use of products and services in order to engage in a style of independent travel imbued with anti-touristic aura.Ethnographic interviews with travelers in Samothraki offer an emic account of the practices, ideologies and lead to different ways of understanding identities and relating to place. Through active embodied engagement with natural landscapes which are perceived as liminal,dangerous and pure they ensure the authenticity of their experience and they claim their self-improvement.
Distributed convergence detection based on global residual error under asynchronous iterations
Creators: name: Magoulès, Frédéric
name: Gbikpi-Benissan, Guillaume
Publisher: name: arXiv
Year: 2023
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: Convergence of classical parallel iterations is detected by performing a reduction operation at each iteration in order to compute a residual error relative to a potential solution vector. To efficiently run asynchronous iterations, blocking communication requests are avoided, which makes it hard to isolate and handle any global vector. While some termination protocols were proposed for asynchronous iterations, only very few of them are based on global residual computation and guarantee effective convergence. But the most effective and efficient existing solutions feature two reduction operations, which constitutes an important factor of termination delay. In this paper, we present new, non-intrusive, protocols to compute a residual error under asynchronous iterations, requiring only one reduction operation. Various communication models show that some heuristics can even be introduced and formally evaluated. Extensive experiments with up to 5600 processor cores confirm the practical effectiveness and efficiency of our approach.
Spin relaxation in narrow wires of a two-dimensional electron gas
Creators: name: Schwab, Peter
name: Dzierzawa, Michael
name: Gorini, Cosimo
name: Raimondi, Roberto
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: How does an initially homogeneous spin-polarization in a confined two-dimensional electron gas with Rashba spin-orbit coupling evolve in time? How does the relaxation time depend on system size? We study these questions for systems of a size that is much larger than the Fermi wavelength, but comparable and even shorter than the spin relaxation length. Depending on the confinement spin-relaxation may become faster or slower than in the bulk. An initially homogeneously polarized spin system evolves into a spiral pattern.
description: 5 pages, 4 figures
The application of artificial neural networks to transformer protection
Creators: name: Ning, Kaoyong
Publisher: name: University of British Columbia
Year: 2009

description: A new method of using Artificial Neural Networks to identify the magnetizing inrush currents that may occur in transformers is developed in this thesis. It is based on the fact that the magnetizing inrush current has large harmonic components. A feed-forward neural network (FFNN) has been trained using the back-propagation algorithm, to discriminate between transformer magnetizing inrush and fault currents. The proposed ANN-based inrush detector uses magnitudes of fundamental and up to the fifth harmonic components as the inputs and provides inrush or no-inrush indication to the differential relay. Some important issues such as the neural network's and the simulated sample power network's structures; simulation, selection and preprocess of the sample data are discussed. The A NN is trained and tested by using simulated data from the EMTP program. The trained network was verified using field test data from a laboratory transformer. The simulation and field test results are included in this thesis and indicate that the ANN-based inrush detector is fairly efficient with good performance and reliability. The work reported here is a description of an experimental demonstration that a feedforward neural network could be used as an alternative method to correctly discriminate between magnetizing inrush and internal fault currents in power transformers. The network and its training process were adapted to the goal of implementing the algorithm in a digital differential protective relay.
Coherent optical manipulation of triplet-singlet states in coupled quantum dots
Creators: name: Türeci, Hakan E.
name: Taylor, J. M.
name: Imamoglu, A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We show that spin-orbit coupling in a quantum dot molecule allows for coherent manipulation of two electron spin states using Raman transitions. Such two-electron spin states defined by the singlet and triplet states of two exchange coupled quantum dots can have favorable coherence properties. In addition, two of the four metastable ground states in this system can be used as auxiliary states that could facilitate implementation of tasks such as mapping of spin states to that of a single propagating photon. We find that even weak spin-orbit effects -- manifesting themselves as slightly different g-factors for the electron and the hole -- would allow for the coherent Raman coupling of the singlet-triplet states. We also discuss the possibilities for implementing quantum optical techniques for spin preparation and manipulation.
description: 8 pages, 6 figures