cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Οι απόψεις των γονέων παιδιών με αναπηρία που φοιτούν στη Δευτεροβάθμια Εκπαίδευση για τη συνεργασία τους με τους εκπαιδευτικούς
Creators: name: Καραμπά, Λίλια Νικολάου
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: Ειδική Αγωγή
Συνεργασία
Γονείς- εκπαιδευτικοί
Special Education
Cooperation
Parents-teachers

description: Βασικό σκοπό διεξαγωγής αυτής της έρευνας αποτέλεσε η διερεύνηση και κατανόηση της ποιότητας της συνεργασίας στο σύνολό της μεταξύ των γονέων και των εκπαιδευτικών στο πλαίσιο της Ειδικής Αγωγής. Επιμέρους στόχοι της προσπάθειας αυτής ήταν η ανάδειξη των τρόπων αλληλεπίδρασης μεταξύ των δύο πλευρών και της προώθησης της μεταξύ τους συνεργασίας, των παραγόντων που ενδεχομένως λειτουργούν ανασταλτικά στη δημιουργία μιας αποτελεσματικής συνεργασίας των οφελών που προκύπτουν από την εν λόγω σχέση για όλους τους εμπλεκόμενους καθώς επίσης και των προτάσεων των γονέων για την ανάπτυξη μιας αποτελεσματικής συνεργασίας. Η διερεύνηση των παραπάνω θεμάτων επιδιώχθηκε με βάση την εξέταση της οπτικής 12 γονέων παιδιών με ειδικές ανάγκες που φοιτούν σε Ε.Ε.Ε.Ε.Κ. Η συλλογή των δεδομένων διεκπεραιώθηκε με τη χρήση ημι-δομημένων συνεντεύξεων και η ανάλυση αυτών έγινε με τη μέθοδο της ανάλυσης περιεχομένου με τη τεχνική της δόμησης και της πρότυπης δόμησης
description: The main purpose of this research was the illustration and the understanding of the views of parents related to the cooperation they develop with teachers in special education. More specifically, this study aimed to highlight the ways of interaction between the two parts, the frequency, the factors that affect its quality and the possible obstacles that may be arisen, the benefits, as well as their proposals for an effective cooperation. The investigation of the above issues was to pursued based on the perspectives of 12 parents of children with disabilities who attend the special secondary schools of Thessaloniki. This study constitutes a qualitative survey with quantitative comparative elements. Data were collected with the use of a semi-structured interview
Where are the Cosmic Metals at z~3?
Creators: name: Sommer-Larsen, Jesper
name: Fynbo, Johan P. U.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The temperature distribution of the cosmic gas-phase oxygen at z~3 is determined by combining high resolution cosmological simulations with the observed, (rest-frame) V-band galaxy LF. The simulations invoke three different stellar IMFs, a Kroupa (K98), a Salpeter (S) and an Arimoto-Yoshii (AY), spanning a range of a factor of five in chemical yield and specific SNII energy feedback. Oxygen is found in all T phases (cold: logT~5), in particular for the (top-heavy) AY IMF. For the K98 and S IMFs, the most important phase is the cold one. Moreover, the cold phase alone contains 1-3 times the mass of oxygen in galactic stars for the three IMFs. The implications of this in relation to DLA studies are discussed. In relation to ``missing metals'' it is found that a significant fraction of the oxygen is located in a warm/hot phase that may be very difficult to detect. Moreover, it is found that less than about 20-25% of the cosmic oxygen is associated with galaxies brighter than M_V~-22, the faintest LBGs probed by current metallicity determinations. From the LBG based, lambda~1500 AA luminosity density history at z>3, the mean oxygen density at z=3 is inferred. Comparing this to the models, it is found that the (solar neighbourhood type) K98 IMF is strongly excluded (too small yield), the S is marginally excluded, and the AY matches the constraint well. The optimal IMF has a yield between the S and AY. A similar conclusion is reached on the basis of the C IV abundance of the moderate density IGM.
description: 22 Pages, 16 Figures, MNRAS, Accepted version, Printing in colour recommended
A New Method for Finding Vacua in String Phenomenology
Creators: name: Gray, James
name: He, Yang-Hui
name: Ilderton, Anton
name: Lukas, Andre
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: One of the central problems of string-phenomenology is to find stable vacua in the four dimensional effective theories which result from compactification. We present an algorithmic method to find all of the vacua of any given string-phenomenological system in a huge class. In particular, this paper reviews and then extends hep-th/0606122 to include various non-perturbative effects. These include gaugino condensation and instantonic contributions to the superpotential.
description: 27 pages, 5 .eps figures. V2: Minor corrections, reference added
A novel technique for real-time ion identification and energy measurement for in situ space instrumentation
Creators: name: Gautier, F.
name: Greeley, A.
name: Kanekal, S. G.
name: Isidori, T.
name: Legras, G.
name: Minafra, N.
name: Novikov, A.
name: Royon, C.
name: Schiller, Q.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The AGILE (Advanced enerGetic Ion eLectron tElescope) project focuses on the development of a compact low-cost space-based instrument to measure the intensities of charged particles and ions in space. Using multiple layers of fast silicon sensors and custom front-end electronics, the instrument is designed for real-time particle identification of a large variety of elements from H to Fe and spanning energies from 1 to 100 MeV per nucleon. The robust method proposed in this work uses key defining features of electronic signals generated by charged particles (ions) traveling through silicon layers to reliably identify and characterize particles in situ. AGILE will use this real-time pulse shape discrimination technique for the first time in space based instrumentation.
description: Published in NIM-A
Semiclassical quantization of an N-particle Bose-Hubbard model
Creators: name: Graefe, E. -M.
name: Korsch, H. J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A semiclassical Bohr-Sommerfeld approximation is derived for an N-particle, two-mode Bose-Hubbard system modeling a Bose-Einstein condensate in a double-well potential. This semiclassical description is based on the `classical' dynamics of the mean-field Gross-Pitaevskii equation and is expected to be valid for large N. We demonstrate the possibility to reconstruct quantum properties of the N-particle system from the mean-field dynamics. The resulting semiclassical eigenvalues and eigenstates are found to be in very good agreement with the exact ones, even for small values of N, both for subcritical and supercritical particle interaction strength where tunneling has to be taken into account.
description: 8 pages, 8 figures
Εμπειρίες ατόμων με κινητικές αναπηρίες στην Τριτοβάθμια Εκπαίδευση: Το ζήτημα της κοινωνικής ένταξης
Creators: name: Μάρκου, Αικατερίνη Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: φοιτητές με κινητική αναπηρία
τριτοβάθμια εκπαίδευση
κοινωνική ένταξη
students with mobility impairments
Higher Education
social integration

description: Σκοπός της παρούσας μεταπτυχιακής εργασίας είναι η μελέτη της κοινωνικής διάστασης της ένταξης των ατόμων με κινητικές αναπηρίες στην Τριτοβάθμια Εκπαίδευση. Το ζήτημα της κοινωνικής ένταξης διερευνάται μέσα από συγκεκριμένες παραμέτρους, προκειμένου να αναδειχθούν όλες του οι διαστάσεις, με βάση τις οποίες προσδιορίστηκαν και οι επιμέρους στόχοι της έρευνας. Πιο συγκεκριμένα, οι επιμέρους στόχοι που επιδιώκονται σχετίζονται με τη διερεύνηση της σύναψης σχέσεων, της αλληλεπίδρασης, της συνεργασίας αλλά και των στάσεων που έχουν αντιμετωπίσει οι φοιτητές με κινητική αναπηρία στο πλαίσιο του πανεπιστημίου. Για την επίτευξη αυτού του σκοπού επιχειρείται η ανάδειξη των προσωπικών εμπειριών των ίδιων των ατόμων με κινητικές αναπηρίες κατά τη διάρκεια της φοίτησής τους στο πανεπιστήμιο, μέσα από συνεντεύξεις. Έτσι, αναδεικνύονται τα βιώματά τους σχετικά με την κοινωνική τους ζωή στο χώρο του πανεπιστημίου αλλά και τους τρόπους με τους οποίους ευνοείται ή παρεμποδίζεται η πλήρης κοινωνική τους ένταξη σε αυτό το πλαίσιο
description: The aim of this postgraduate thesis is to study the social dimension of mobility impaired people’s integration in higher education. Social inclusion is examined through specific parameters. In that way the dimensions, on the basis of which the objectives of the research were determined, are fully demonstrated. To be more specific, the objectives pursued relate to the relations, interaction, cooperation and attitudes faced by students with mobility impairments within the university. In order to achieve this goal, personal experiences of people with mobility impairments during their studies at the university are to be highlighted through interviews. Thus, their experiences about their social life in the university are exhibited, as well as the ways in which their full social integration is favored or hindered in this context
Universal temperature dependence of the magnetization of gapped spin chains
Creators: name: Maeda, Yoshitaka
name: Hotta, Chisa
name: Oshikawa, Masaki
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Temperature dependence of the magnetization of the Haldane spin chain at finite magnetic field is analyzed systematically. Quantum Monte Carlo data indicates a clear minimum of magnetization as a function of temperature in the gapless regime. On the basis of the Tomonaga-Luttinger liquid theory, we argue that this minimum is rather universal and can be observed for general axially symmetric quasi-one-dimensional spin systems. Our argument is confirmed by the magnetic-field dependence of the spin-wave velocity obtained numerically. One can estimate a magnitude of the gap of any such systems by fitting the experimental data with the magnetization minimum.
description: 9 pages, 7 figures
Towards the emergence of non-zero thermodynamical quantities for Lanczos-Lovelock black holes dressed with a scalar field
Creators: name: Bravo-Gaete, M.
name: Gómez, C.
name: Guajardo, L.
name: Gómez, S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The present work aims to explore the model given by Lanczos-Lovelock gravity theories indexed by a fixed integer to require a unique anti-de Sitter vacuum, dressed by a scalar field non-minimal coupling. For this model, we add a special matter source characterized by a non-linear Maxwell field coupling with a function depending on the scalar field. Computing its thermodynamics parameters by using the Euclidean action, we obtain interesting and non zero thermodynamical quantities, unlike its original version, allowing analyzing thermodynamical stability. Together with the above, we found that these solutions satisfy the First Law of Thermodynamics as well as a Smarr relation.
description: 10 pages, 3 figures
A fast multi-dimensional magnetohydrodynamic formulation of the transition region adaptive conduction (TRAC) method
Creators: name: Johnston, C. D.
name: Hood, A. W.
name: De Moortel, I.
name: Pagano, P.
name: Howson, T. A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We have demonstrated that the Transition Region Adaptive Conduction (TRAC) method permits fast and accurate numerical solutions of the field-aligned hydrodynamic equations, successfully removing the influence of numerical resolution on the coronal density response to impulsive heating. This is achieved by adjusting the parallel thermal conductivity, radiative loss, and heating rates to broaden the transition region (TR), below a global cutoff temperature, so that the steep gradients are spatially resolved even when using coarse numerical grids. Implementing the original 1D formulation of TRAC in multi-dimensional magnetohydrodynamic (MHD) models would require tracing a large number of magnetic field lines at every time step in order to prescribe a global cutoff temperature to each field line. In this paper, we present a highly efficient formulation of the TRAC method for use in multi-dimensional MHD simulations, which does not rely on field line tracing. In the TR, adaptive local cutoff temperatures are used instead of global cutoff temperatures to broaden any unresolved parts of the atmosphere. These local cutoff temperatures are calculated using only local grid cell quantities, enabling the MHD extension of TRAC to efficiently account for the magnetic field evolution, without tracing field lines. Consistent with analytical predictions, we show that this approach successfully preserves the properties of the original TRAC method. In particular, the total radiative losses and heating remain conserved under the MHD formulation. Results from 2D MHD simulations of impulsive heating in unsheared and sheared arcades of coronal loops are also presented. These simulations benchmark the MHD TRAC method against a series of 1D models and demonstrate the versatility and robustness of the method in multi-dimensional magnetic fields. We show, for the first time, that pressure differences, ...
description: 18 pages, 11 figures, accepted for publication in A&A
Elicitation session: Numerals, valence alterations, 'with' and 'and'
Creators: name: Ngolele, Christophère
name: Hyman, Larry M.
name: Lionnet, Florian
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: teg

description: 10 WAV files, 1 PDF file. Includes reciprocal, reflexive, anticausative. PDF file is scan of corresponding pages from Lionnet's field notes (pp. 134-147). See related file bundle for Hyman field notes.
Prospects for measuring dark matter microphysics with observations of dwarf spheroidal galaxies
Creators: name: Baxter, Eric J.
name: Kumar, Jason
name: Pace, Andrew B.
name: Runburg, Jack
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Dark matter annihilation in dwarf spheroidal (dSph) galaxies near the Milky Way has the potential to produce a detectable signature in gamma-rays. The amplitude of this signal depends on the dark matter density in a dSph, the dark matter particle mass, the number of photons produced in an annihilation, and the possibly velocity-dependent dark matter annihilation cross section. We argue that if the amplitude of the annihilation signal from multiple dSphs can be measured, it is possible to determine the velocity-dependence of the annihilation cross section. However, we show that doing so will require improved constraints on the dSph density profiles, including control of possible sources of systematic uncertainty. Making reasonable assumptions about future improvements, we make forecasts for the ability of current and future experiments -- including Fermi, CTA and AMEGO -- to constrain the dark matter annihilation velocity dependence.
description: 16 pages main text, 5 pages appendices, 10 figures; matches version accepted by JCAP
Analytic Formulas for the Orientation Dependence of Step Stiffness and Line Tension: Key Ingredients for Numerical Modeling
Creators: name: Stasevich, T. J.
name: Einstein, T. L.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present explicit analytic, twice-differentiable expressions for the temperature-dependent anisotropic step line tension and step stiffness for the two principal surfaces of face-centered-cubic crystals, the square {001} and the hexagonal {111}. These expressions improve on simple expressions that are valid only for low temperatures and away from singular orientations. They are well suited for implementation into numerical methods such as finite-element simulation of step evolution.
description: 10 pages; reformatted with revtex (with typos corrected) from version accepted by SIAM--Multiscale Modeling and Simulation on Nov. 21, 2006; greatly expanded introduction, several minor fixes (mostly stylistic)
Предотвращение атаки со стороны неавторизованного пользователя с использованием алгоритма шифрования Эль – Гамаля в букмекерской конторе
Creators: name: Короченцев Денис Александрович
name: Чуб Павел Андреевич
Publisher: name: Colloquium-journal
Year: 2019
Subjects: защита информации
шифрование
аутентификация
букмекерская контора
криптография
система защиты.
information security
encryption
authentication
bookmaker
cryptography
security system.

description: В статье решается задача защиты информационных систем от НСД к служебной информации ограниченного доступа в букмекерских конторах. Разработана модель безопасности информации от несанкционированного доступа с использованием криптографических методов защиты. Практически реализован программный продукт, моделирующий работу рассматриваемой модели безопасности информации в букмекерской конторе.
description: The article solves the problem of protecting information systems from unauthorized access to official information of limited access in bookmakers. A model of information security against unauthorized access using cryptographic protection methods has been developed. Practically implemented a software product that simulates the work of the model of information security in a bookmaker.
On the canonical energy of weak gravitational fields with a cosmological constant $Λ\in \mathbb{R}$
Creators: name: Chruściel, P. T.
name: Hoque, Sk J.
name: Maliborski, M.
name: Smołka, T.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We analyse the canonical energy of vacuum linearised gravitational fields on light cones on a de Sitter, Minkowski, and Anti de Sitter backgrounds in Bondi gauge. We derive the associated asymptotic symmetries. When $Λ>0$ the energy diverges, but a renormalised formula with well defined flux is obtained. We show that the renormalised energy in the asymptotically off-diagonal gauge coincides with the quadratisation of the generalisation of the Trautman-Bondi mass proposed in [13].
description: minor improvements in the presentation, retypeset in EPJC preprint style
Preparing Global Citizens: Librarians Connect Students with a Learning Service Opportunity in Nicaragua
Creators: name: Herron, Patricia
name: Griner, Lily
Publisher: name: Digital Repository at the University of Maryland
Year: 2009
Subjects: Study Abroad
Service Learning
Nicaragua
University of Maryland
Libraries
School of Information Studies

description: Two librarians from the University of Maryland (UM) partnered with a faculty member in the UM’s College of Information Studies to develop and offer a study abroad course to Nicaragua.  This article documents the development and implementation of this unique service-learning course.
Toward 1% Photometry: End-to-end Calibration of Astronomical Telescopes and Detectors
Creators: name: Stubbs, Christopher W.
name: Tonry, John L.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We review the systematic uncertainties that have plagued attempts to obtain high precision and high accuracy from ground-based photometric measurements using CCDs. We identify two main challenges in breaking through the 1% precision barrier: 1) fully characterizing atmospheric transmission, along the instrument's line of sight, and 2) properly identifying, measuring and removing instrumental artifacts. We discuss approximations and limitations inherent in the present methodology, and we estimate their contributions to systematic photometric uncertainties. We propose an alternative conceptual scheme for the relative calibration of astronomical apparatus: the availability of calibrated detectors whose relative spectral sensitivity is known to better than one part in $10^3$ opens up the possibility of in situ relative throughput measurements, normalized to a precision calibrated detector, using a stable but uncalibrated narrowband light source. An implementation scheme is outlined, which exploits the availability of tunable lasers to map out the relative wavelength response of an imaging system, using a flatfield screen and a calibrated reference photodiode. The merits and limitations of this scheme are discussed. In tandem with careful measurements of atmospheric transmission, this approach could potentially lead to reliable ground-based photometry with fractional uncertainties below the percent level.
description: 25 pages, no figures. To be published in ApJ
Genetic analysis of Polycomb group interactions in imaginal discs of Drosophila Melanogaster and transposon tagging of the Asx Gene
Creators: name: Campbell, Roderick B.
Publisher: name: University of British Columbia
Year: 2008

description: The Polycomb Group of genes is essential for the maintenance of determination during Drosophila development. Previous studies have examined interactions between homozygous members of the Polycomb (Pc) Group. These studies suggest interactions occur between the members of the Pc Group but cannot provide definitive conclusions as to the nature of the interactions. Previous studies of heterozygous gene interactions have helped characterize protein-protein interactions. I have made all possible pairwise combinations of transheterozygotes of the Pc Group gene to examine the interactions which exist in imaginal discs. The results support several hypotheses: extra sexcombs (esc) and Pc act through different pathways to regulate the homeotic genes; polyhomeotic (ph), Pc, Sexcombs extra (Sce), Sex combs on mid leg (Scm), and Posteriorsex combs (Psc) act as essential members of a protein complex; alternate complexes regulate the expression of homeotics; some members of the Pc group act outside both the esc and Pc pathways. In order to define the function of the Pc Group it will be necessary to clone the members and molecularly characterize the interactions I have therefore isolated a P-element induced mutation of Additional sex combs (Asx) as the first step in cloning the gene.
Models for Massive Stellar Populations with Rotation
Creators: name: Vazquez, Gerardo A.
name: Leitherer, Claus
name: Schaerer, Daniel
name: Meynet, Georges
name: Maeder, Andre
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present and discuss evolutionary synthesis models for massive stellar populations generated with the Starburst99 code in combination with a new set of stellar evolution models accounting for rotation. The new stellar evolution models were compiled from several data releases of the Geneva group and cover heavy-element abundances ranging from twice solar to one fifth solar. The evolution models were computed for rotation velocities on the zero-age main-sequence of 0 and 300 km/s and with the latest revision of stellar mass-loss rates. Since the mass coverage is incomplete, in particular at non-solar chemical composition, our parameter study is still preliminary and must be viewed as exploratory. Stellar population properties computed with Starburst99 and the new evolution models show some marked differences in comparison with models obtained using earlier tracks. Since individual stars now tend to be more luminous and bluer when on the blue side of the Hertzsprung-Russell diagram, the populations mirror this trend. For instance, increases by factors of two or more are found for the light-to-mass ratios at ultraviolet to near-infrared wavelengths, as well as for the output of hydrogen ionizing photons. If these results are confirmed once the evolution models have matured, recalibrations of certain star-formation and initial mass function indicators will be required.
description: Accepted for publication in ApJ
Supplementary Information for A pipeline with pre-processing options to detect behaviour from accelerometer data using Machine Learning tested on dairy goats.
Creators: name: Mauny, Sarah
name: Kwon, Joon
name: Friggens, Nicolas C.
name: Duvaux-Ponter, Christine
name: Taghipoor, Masoomeh
Publisher: name: Zenodo
Year: 2025

description: This document contains the Supplementary Information for Mauny et al., 2025 (https://doi.org/10.5281/zenodo.12627197) published in Peer Community Journal, linked to the data deposited on Zenodo (https://doi.org/10.5281/zenodo.12627197).Preprint version of this article has been peer-reviewed and recommended by Peer Community In Animal Science (https://doi.org/10.24072/pci.animsci.100341, Rafat S., 2025).
Compute and memory efficient universal sound source separation
Creators: name: Tzinis, Efthymios
name: Wang, Zhepei
name: Jiang, Xilin
name: Smaragdis, Paris
Publisher: name: arXiv
Year: 2021
Subjects: subject: Sound (cs.SD)
subject: Computation and Language (cs.CL)
subject: Machine Learning (cs.LG)
subject: Audio and Speech Processing (eess.AS)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Recent progress in audio source separation lead by deep learning has enabled many neural network models to provide robust solutions to this fundamental estimation problem. In this study, we provide a family of efficient neural network architectures for general purpose audio source separation while focusing on multiple computational aspects that hinder the application of neural networks in real-world scenarios. The backbone structure of this convolutional network is the SUccessive DOwnsampling and Resampling of Multi-Resolution Features (SuDoRM-RF) as well as their aggregation which is performed through simple one-dimensional convolutions. This mechanism enables our models to obtain high fidelity signal separation in a wide variety of settings where variable number of sources are present and with limited computational resources (e.g. floating point operations, memory footprint, number of parameters and latency). Our experiments show that SuDoRM-RF models perform comparably and even surpass several state-of-the-art benchmarks with significantly higher computational resource requirements. The causal variation of SuDoRM-RF is able to obtain competitive performance in real-time speech separation of around 10dB scale-invariant signal-to-distortion ratio improvement (SI-SDRi) while remaining up to 20 times faster than real-time on a laptop device.
description: Accepted to Journal of Signal Processing Systems https://www.springer.com/journal/11265. arXiv admin note: substantial text overlap with arXiv:2007.06833
Ο Υπουργός Παιδείας Κωνσταντίνος Β. Γόντικας και οι μεταρρυθμιστικές του προσπάθειες: Από τα νομοσχέδια του 1923 στη μεταρρύθμιση του 1929
Creators: name: Τσίντζα, Δέσποινα Ιωάννη
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: Κ. Β. Γόντικας
εκπαιδευτική μεταρρύθμιση 1929
εκπαίδευση εκπαιδευτικών
K. V. Gontikas
1929’s educational reform
Teacher Training

description: Σκοπός της παρούσας μεταπτυχιακής εργασίας ήταν να προσεγγίσουμε τις μεταρρυθμιστικές προσπάθειες του Κ. Β. Γόντικα και να ανιχνεύσουμε τους στόχους που θέτει για την αναμόρφωση της κοινωνίας στις δύο περιόδους δράσης του στο Υπουργείο Παιδείας (1923 και 1928-1930). Μέσα από την αρχειακή έρευνα στο προσωπικό αρχείο του Κ. Β. Γόντικα, διαπιστώσαμε πως για την επίτευξη του στόχου του, το έργο του εκκινούσε και κατέληγε στην εκπαίδευση των εκπαιδευτικών. Αρχικά, θέσαμε το πλαίσιο μέσα στο οποίο έδρασε ο Υπουργός και μελετήσαμε στοιχεία της προσωπικότητας και της δημόσιας δράσης του έτσι ώστε να δημιουργήσουμε το προφίλ του. Επιπλέον, τα στοιχεία που συλλέξαμε από τον ημερήσιο και περιοδικό Τύπο και την προσωπική αλληλογραφία του Υπουργού φανέρωσαν τον αντίκτυπό του στην κοινωνία. Στη συνέχεια, παρουσιάσαμε αναλυτικά τη δράση του στο Υπουργείο Παιδείας στις δύο διαφορετικές χρονικές περιόδους και μετέπειτα, επικεντρωθήκαμε στις μεταρρυθμιστικές προσπάθειες που αφορούσαν την εκπαίδευση των εκπαιδευτικών Πρωτοβάθμιας και Μέσης εκπαίδευσης, καταλήγοντας σε μια συγκριτική παρουσίαση των στοιχείων που συλλέξαμε. Ιδιαίτερα σημαντικό κομμάτι της έρευνας αποτέλεσε η σχέση και συνεργασία του με τους Εκπαιδευτικούς Δημοτικιστές, η οποία αναλύθηκε στα βασικά της σημεία. Η διατριβή κατέληξε στα συμπεράσματά της σχετικά με την αποτίμηση του έργου και της δράσης του Κ. Β. Γόντικα στον χώρο της παιδείας
description: The aim of the present dissertation was to approach the reform efforts of the Minister of Education Konstantinos V. Gontikas and to investigate the goals he sets for the reformation of society in two periods of action at the Ministry of Education (1923 and 1928-1930). Through the survey in K. V. Gontika’s historical archive, we ascertained that in order to achieve his goal, his work based on Teacher Training. First of all, we set the historical background of the Minister’s action and we meditated information of his personality and public action in order to form his profile. Additionally, the data that emerged from the daily and periodic press, and also from K. V. Gontika’s personal correspondence revealed his impact on society. Then, we presented thoroughly his activities to the Ministry of Education in two different time periods, and then we focused on the reform efforts concerning the Teacher Training of Primary and Secondary school, resulting in a comparative presentation of the elements we collected. Extremely important part of this dissertation was the connection and his cooperation with the participants in the “Educational Demoticism”, which was analyzed in the main parts. This dissertation comes to a conclusion referring to the evaluation of K. V. Gontikas’s project and action in the field of education
Hard X-rays from Ultra-Compact HII Regions in W49A
Creators: name: Tsujimoto, M.
name: Hosokawa, T.
name: Feigelson, E. D.
name: Getman, K. V.
name: Broos, P. S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report the Chandra detection of hard X-ray emission from the Welch ring in W49A, an organized structure of ultra-compact (UC) HII regions containing a dozen nascent early-type stars. Two UC HII regions are associated with hard X-ray emission in a deep Advanced CCD Imaging Spectrometer image exposed for 96.7 ks. One of the two X-ray sources has no near-infrared counterpart and is extended by ~5 arcsec, or ~0.3 pc, at a distance of ~11.4 kpc, which is spatially aligned with the cometary radio continuum emission associated with the UC HII region. The X-ray spectrum of the emission, when fit with a thermal model, indicates a heavily absorbed plasma with extinction of \~5x10^{23}/cm^{2}, temperature of ~7 keV, and X-ray luminosity in the 3.0-8.0 keV band of ~3x10^{33} ergs/s. Both the luminosity and the size of the emission resemble the extended hard emission found in UC HII regions in Sagittarius B2, yet they are smaller by an order of magnitude than the emission found in massive star clusters such as NGC 3603. Three possibilities are discussed for the cause of the hard extended emission in the Welch ring: an ensemble of unresolved point sources, shocked interacting winds of the young O stars, and a wind-blown bubble interacting with ambient cold matter.
description: 12 pages, 7 figures, ApJ in press. See http://agyo.rikkyo.ac.jp/~tsujimot/ms.pdf for a higher quality version
Precision gluino mass at the LHC in SUSY models with decoupled scalars
Creators: name: Baer, Howard
name: Barger, Vernon
name: Shaughnessy, Gabe
name: Summy, Heaya
name: Wang, Lian-tao
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: One way to ameliorate the SUSY flavor and CP problems is to postulate that scalar masses lie in the TeV or beyond regime. For example, the focus point (FP) region of the minimal supergravity (mSUGRA) model is especially compelling in that heavy scalar masses can co-exist with low fine-tuning while yielding the required relic abundance of cold dark matter (via a mixed higgsino-bino neutralino). We examine many of the characteristics of collider events expected to arise at the CERN LHC in models with multi-TeV scalars, taking the mSUGRA FP region as a case study. The collider events are characterized by a hard component arising from gluino pair production, plus a soft component arising from direct chargino and neutralino production. Gluino decays in the FP region are characterized by lengthy cascades yielding very large jet and lepton multiplicities, and a large b-jet multiplicity. Thus, as one steps to higher jet, b-jet or lepton multiplicity, signal-over-background rates should steadily improve. The lengthy cascade decays make mass reconstruction via kinematic edges difficult; however, since the hard component is nearly pure gluino pair production, the gluino mass can be extracted to +- 8% via total rate for \eslt +\ge 7-jet +\ge 2 b-jet events, assuming 100 fb^{-1} of integrated luminosity. The distribution of invariant mass of opposite-sign/same-flavor dileptons in the hard component exhibits two dilepton mass edges: m_{\tz_2}-m_{\tz_1} and m_{\tz_3}-m_{\tz_1}. As a consistency check, the same mass edges should be seen in isolated opposite-sign dileptons occurring in the soft component trilepton signal which originates mainly from chargino-neutralino production.
description: 24 pages with 20 EPS figures
Density matrix renormalization group algorithms for Y-junctions
Creators: name: Guo, Haihui
name: White, Steven R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Systems of Y-junctions are interesting both from a fundamental viewpoint and because of their potential use in nanoscale devices. These systems can be studied numerically with the density matrix renormalization group(DMRG), but existing algorithms are inefficient. Here, we introduce a much more efficient DMRG algorithm for Y-junction systems. As an example of the use of this method, we study $S=1/2$ bound states in Heisenberg S=1 junctions with two geometries, one where the junction consists of a single site, and the other where it consists of a triangle of three sites.
description: 4 pages, 5 figures
Elicitation session: Negatives and argument structure
Creators: name: Ngolele, Christophère
name: Hyman, Larry M.
name: Lionnet, Florian
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: teg

description: 10 WAV files, 1 PDF file. PDF file is scan of corresponding pages from Lionnet's field notes (pp. 115-133). See related file bundle for Hyman field notes.
International trade policy, oligopoly and learning-by-doing (with applications to the international aircraft industry)
Creators: name: Fok, Andy K.
Publisher: name: University of British Columbia
Year: 2008

description: Despite the non-cooperative outcome predicted by the model of Prisoner Dilemma, throughout the history of international trade, mutual conflicts leading to an equilibrium which has the lowest joint payoffs is not so frequently observed. Trade barriers have indeed been gradually removed since the end of World War II. The objective of this thesis is to investigate various policy implications for international trade under duopoly with learning effects and to examine under what assumptions of strategy adopted by the rival will result in trade disputes. Interestingly, the adoption of a "tit-for-tat" strategy can be claimed by a government to achieve free trade. In this paper, four major results are obtained. All theoretical results involve a duopolistic industry in which two firms, belonging to two different countries, attempt to export a homogeneous good to a third market. Assuming a Cournot game for competition at the firm level, and a "tit-for-tat” strategy adopted by the rival, the first result indicate that the presence of learning effects render cooperation (removal of subsidies) between governments difficult to achieve. The second result shows that in a dynamic economy with infinite horizons in which a government only plans for two periods, a policy of unconditional free trade cannot provide sufficient penalties because the gains from going down the learning curve through production subsidies outweighs the losses from retaliation. The third objective of this study is to evaluate the validity of infant industry argument under duopoly. Fourth, I examine the civil aircraft manufacturing industry which has a very close market structure discussed in this paper using two different approaches: a general descriptive case study of the industry and an empirical evaluation of its performance in the past twenty years.
Spectrum of the doubly charmed molecular pentaquarks in chiral effective field theory
Creators: name: Chen, Kan
name: Wang, Bo
name: Zhu, Shi-Lin
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We perform a systematic study on the interactions of the $Σ_c^{(*)}D^{(*)}$ systems within the framework of chiral effective field theory. We introduce the contact term, one-pion-exchange and two-pion-exchange contributions to describe the short-, long-, and intermediate-range interactions. The low energy constants of the $Σ_c^{(*)}D^{(*)}$ systems are estimated from the $N\bar{N}$ scattering data by introducing a quark level Lagrangian. With three solutions of LECs, all the $Σ_c^{(*)}D^{(*)}$ systems with isospin $I=1/2$ can form bound states, in which different inputs of LECs may lead to distinguishable mass spectra. In addition, we also investigate the interactions of the charmed-bottom $Σ_c^{(*)}\bar{B}^{(*)}$, $Σ_b^{(*)}D^{(*)}$, and $Σ_b^{(*)}\bar{B}^{(*)}$ systems. Among the obtained bound states, the bindings become deeper when the reduced masses of the corresponding systems are heavier.
description: 12 pages, 8 figures, 9 tables. Happy Spring Festival!
$Λ$$Λ$ interactions in finite-density QCD sum rules
Creators: name: Zhong, X. H.
name: Ning, P. Z.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The properties of $Λ$-hyperons in pure $Λ$ matter are studied with the finite-density QCD sum rule approach. The first order quark and gluon condensates in $Λ$ nuclear matter are deduced from the chiral perturbation theory. The sum rule predictions are sensitive to the four-quark condensates, $^2_ρ$ and $_ρ_ρ$, and the $πN$ sigma term. When $^2_ρ$ is nearly independent of density and $_ρ_ρ$ depends strongly on density, we can obtain weakly attractive $Λ$$Λ$ potentials (about several MeV) in low $Λ$ density region, which agree with the information from the latest double $Λ$ hyper-nucleus experiments. The nearly no density dependence of $^2_ρ$ and strong density dependence of $_ρ_ρ$ can be explained naturally if the properties of $^2_ρ$ and $_ρ_ρ$ are assumed to be similar to those of $ππ$ and $\bar{K} K$ in nuclear medium, respectively.
description: 10 pages and 7 figures
The vehicle routing problem: The case of VITAFARM S.A
Creators: name: Κουτής, Γεώργιος Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: Πρόβλημα δρομολόγησης οχημάτων
Βελτιστοποίηση
Εφοδιαστική Αλυσίδα
Vehicle routing problem
Optimization
Supply chain

description: This thesis has as purpose to present and analyze the aspects of the vehicle routing problem and its connection to real life problems in businesses. The initial part refers to the subject of transportation with presentation of the different modes of transport in order to conclude to the need of optimized routes. The vehicle routing problem is presented and analyzed with all its extensions combined with their mathematical formulations. Moreover the different solution methods that are used extensively are analyzed with emphasis to the Clarke and Wright Algorithm that will be applied in the second chapter of the thesis. As far as the second chapter is concerned, the application of the parallel version of the Clarke and Wright Algorithm is presented. There is a brief overview at the company “Vitafarm” that was chosen for the application. After that, we have the presentation of the problem’s data necessary for the solution. The steps and the theory applied until the final solution is achieved are also presented. New routes that utilize the company’s fleet are proposed and compared with the existing policy on routing in order to serve the customers satisfactory. At last, there is a summarization on the significance and benefits of the vehicle routing problem and some thoughts on where future research should emphasize.
description: Η διατριβή έχει σκοπό να παρουσιάσει και να αναλύσει τις πτυχές του προβλήματος δρομολόγησης οχημάτων και τη σύνδεσή τους με προβλήματα των επιχειρήσεων στην πραγματικότητα. Το αρχικό μέρος αναφέρεται στο θέμα της μεταφοράς με παρουσίαση των διαφόρων μέσων μεταφοράς, προκειμένου να καταλήξει στην ανάγκη για βελτιστοποιημένες διαδρομές. Το πρόβλημα της δρομολόγησης οχημάτων παρουσιάζεται και αναλύεται με όλες τις επεκτάσεις του σε συνδυασμό με τις μαθηματικές μορφές τους. Επιπλέον, οι διαφορετικές μέθοδοι λύσεων που χρησιμοποιούνται εκτενώς αναλύονται με έμφαση στον Αλγόριθμο Clarke και Wright που εφαρμόζεται στο δεύτερο κεφάλαιο της εργασίας. Όσον αφορά το δεύτερο κεφάλαιο, παρουσιάζεται η εφαρμογή της παράλληλης έκδοσης του Αλγόριθμου Clarke και Wright. Υπάρχει μια σύντομη επισκόπηση στην εταιρεία "Vitafarm" που επιλέχθηκε για την εφαρμογή. Μετά από αυτό, έχουμε την παρουσίαση των δεδομένων του προβλήματος που είναι απαραίτητα για τη λύση. Παρουσιάζονται επίσης τα βήματα και η θεωρία που εφαρμόζονται μέχρις ότου επιτευχθεί η τελική λύση. Νέες διαδρομές που βελτιστοποιούν το στόλο της εταιρείας προτείνονται και συγκρίνονται με την υπάρχουσα πολιτική δρομολόγησης προκειμένου να εξυπηρετούνται πλήρως οι απαιτήσεις των πελατών. Τέλος, υπάρχει μια σύνοψη σχετικά με τη σημασία και τα οφέλη του προβλήματος δρομολόγησης οχημάτων και κάποιες σκέψεις σχετικά με το πού πρέπει να δοθεί έμφαση στη μελλοντική έρευνα.
Relaxing restrictions at the pace of vaccination increases freedom and guards against further COVID-19 waves
Creators: name: Bauer, Simon
name: Contreras, Sebastian
name: Dehning, Jonas
name: Linden, Matthias
name: Iftekhar, Emil
name: Mohr, Sebastian B.
name: Olivera-Nappa, Álvaro
name: Priesemann, Viola
Publisher: name: arXiv
Year: 2021
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: Mass vaccination offers a promising exit strategy for the COVID-19 pandemic. However, as vaccination progresses, demands to lift restrictions increase, despite most of the population remaining susceptible. Using our age-stratified SEIRD-ICU compartmental model and curated epidemiological and vaccination data, we quantified the rate (relative to vaccination progress) at which countries can lift non-pharmaceutical interventions without overwhelming their healthcare systems. We analyzed scenarios ranging from immediately lifting restrictions (accepting high mortality and morbidity) to reducing case numbers to a level where test-trace-and-isolate (TTI) programs efficiently compensate for local spreading events. In general, the age-dependent vaccination roll-out implies a transient decrease of more than ten years in the average age of ICU patients and deceased. The pace of vaccination determines the speed of lifting restrictions; Taking the European Union (EU) as an example case, all considered scenarios allow for steadily increasing contacts starting in May 2021 and relaxing most restrictions by autumn 2021. Throughout summer 2021, only mild contact restrictions will remain necessary. However, only high vaccine uptake can prevent further severe waves. Across EU countries, seroprevalence impacts the long-term success of vaccination campaigns more strongly than age demographics. In addition, we highlight the need for preventive measures to reduce contagion in school settings throughout the year 2021, where children might be drivers of contagion because of them remaining susceptible...
Spatial cueing by a novel agent in preschool children and adults
Creators: name: Terrizzi, Brandon
Publisher: name: Digital Repository at the University of Maryland
Year: 2015
Subjects: subject: Developmental psychology
subject: Social psychology
subject: Robotics
subject: attention
subject: communication
subject: covert attention
subject: intentional stance
subject: novel agents
subject: social perception

description: In the current study we assessed preschool children and adults' reflexive, covert spatial attentional response to a novel entity. In particular, we assessed whether covert attention was selectively engaged after construing the novel entity as an agent. Previous research has demonstrated that children and adults' covert spatial attention may be flexibly engaged by a non-directional cueing stimulus (e.g., a circle), however this attentional response is neither spontaneous nor is it reflexive (i.e., participants were told that the stimulus predicted the eventual target's location). For the first time we have shown that covert spatial attention is spontaneously and reflexively engaged by a morphologically unfamiliar cueing character when it is interpreted as an agent but not otherwise. The implication of this finding for theoretical accounts of the development of covert attention and agency attributions more generally are discussed.
A Query-based Routing Table Update Mechanism for Content-Centric Network
Creators: name: Tsai, Pei-Hsuan
name: Tseng, Yu-Lin
name: Zhang, Jun-Bin
name: Tsai, Meng-Hsun
Publisher: name: arXiv
Year: 2021
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences
subject: C.2.2

description: Due to the popularity of network applications, such as multimedia, online shopping, Internet of Things (IoT), and 5G, the contents cached in the routers are frequently replaced in Content-Centric Networking (CCN). Generally, cache miss causes numerous propagated packets to get the required content that deteriorates network congestion and delay the response time of consumers. Many caching strategies and routing policies were proposed to solve the problem. This paper presents an alternative solution by designing a query-based routing table update mechanism to increase the accuracy of routing tables. By adding an additional query content in interest packets, our approach real-time explores the cached content in routers and updated the routing table accordingly. This paper uses a general network simulator, ndnSIM, to compare basic CCN and our approach. The results show that our approach improves the response time of consumers and network congestion and is compatible with general forwarding strategies.
description: 6 pages, 14 figures, conference. ISBN:978-1-7281-9256-7