cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Discrete and hybrid methods for the diagnosis of distributed systems
Creators: name: Kan John, Priscilla
Publisher: name: The Australian National University
Year: 2013
Subjects: subject: Electronic data processing Distributed processing
subject: Hybrid systems
subject: System analysis
subject: Computer networks

description: Many important activities of modern society rely on the proper functioning of complex systems such as electricity networks, telecommunication networks, manufacturing plants and aircrafts. The supervision of such systems must include strong diagnosis capability to be able to effectively detect the occurrence of faults and ensure appropriate corrective measures can be taken in order to recover from the faults or prevent total failure. This thesis addresses issues in the diagnosis of large complex systems. Such systems are usually distributed in nature, i.e. they consist of many interconnected components each having their own local behaviour. These components interact together to produce an emergent global behaviour that is complex. As those systems increase in complexity and size, their diagnosis becomes increasingly challenging. In the first part of this thesis, a method is proposed for diagnosis on distributed systems that avoids a monolithic global computation. The method, based on converting the graph of the system into a junction tree, takes into account the topology of the system in choosing how to merge local diagnoses on the components while still obtaining a globally consistent result. The method is shown to work well for systems with tree or near-tree structures. This method is further extended to handle systems with high clustering by selectively ignoring some connections that would still allow an accurate diagnosis to be obtained. A hybrid system approach is explored in the second part of the thesis, where continuous dynamics information on the system is also retained to help better isolate or identify faults. A hybrid system framework is presented that models both continuous dynamics and discrete evolution in dynamical systems, based on detecting changes in the fundamental governing dynamics of the system rather than on residual estimation. This makes it possible to handle systems that might not be well characterised and where parameter drift is present. The discrete aspect of the hybrid system model is used to derive diagnosability conditions using indicator functions for the detection and isolation of multiple, arbitrary sequential or simultaneous events in hybrid dynamical networks. Issues with diagnosis in the presence of uncertainty in measurements due sensor or actuator noise are addressed. Faults may generate symptoms that are in the same order of magnitude as the latter. The use of statistical techniques,within a hybrid system framework, is proposed to detect these elusive fault symptoms and translate this information into probabilities for the actual operational mode and possibility of transition between modes which makes it possible to apply probabilistic analysis on the system to handle the underlying uncertainty present.
Workshop day 4: Story about a Tattooed Face Indian
Creators: name: Parker, Verdena
name: Ammon, Danny
name: Campbell, Amy
name: George-Moore, Melodie
name: Jackson, Silis
name: Martins, Jacalyn
name: Newbold, Lindsey
name: Spence, Justin
name: Parker, Otis
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: hup

description: Audio files VP-220710-02 and VP-220710-03: A story told in Hupa about an encounter with a "tattooed face" Indian (probably Wailaki or Mattole), including some of the language that he spoke (file VP-220710-02), with follow-up discussion in English (VP-220710-03). Recorded at a workshop in Hoopa Valley. The participants identified here were present at most sessions during the workshop; additional people were also present, some of whom participate in the conversation.
Στάσεις των κυπρίων εκπαιδευτικών απέναντι στην κοινή κυπριακή και την κοινή νεοελληνική στην Κύπρο
Creators: name: Φιλίππου, Μαρίνα Αντρέα
Publisher: name: Aristotle University of Thessaloniki
Year: 2008
Subjects: Κυπριακή διάλεκτος
Κοινή νεοελληνική
Εκπαιδευτικοί
Κύπρος
Στάσεις
Cyprint dialect
Modern Greek
Teachers
Cyprus
Attitudes

description: Σκοπός της έρευνας αυτής είναι να διερευνήσει τις στάσεις των Κυπρίων εκπαιδευτικών απέναντι στην Κυπριακή διάλεκτο και την Κοινή Νεοελληνική στην Κύπρο. Για τη διεξαγωγή της έρευνας χρησιμοποιήθηκε η συνέντευξη ως μέσο συλλογής δεδομένων. Συνεντεύξεις πάρθηκαν από 50 δασκάλους της Δημοτικής εκπαίδευσης που διδάσκουν στη Λευκωσία, στη Λεμεσό, στη Λάρνακα και στην Πάφο. Οι συνεντεύξεις πάρθηκαν τους μήνες Μάρτιο και Απρίλιο 2007.
description: The aim of this research is to examine the attitudes of Cypriot teachers towards cyprus dialect and modern greek in Cyprus. To collect the necessary data, there were taken 50 interviews of teachers that work in Primary Education in Limassol, Paphos, Larnaca and Nicosia. The interviews took place in March and in April in 2007.
Solutions for 400 Gbit/s Inter Data Center WDM Transmission
Creators: name: Dochhan, Annika
name: Eiselt, Nicklas
name: Grießer, Helmut
name: Eiselt, Michael
name: Olmos, Juan José Vegas
name: Monroy, Idelfonso Tafur
name: Elbers, Jörg-Peter
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: We review some currently discussed solutions for 400 Gbit/s inter-data center WDM transmission for up to 100 km. We focus on direct detected solutions, namely PAM4 and DMT, and present two WDM systems based on these formats.
description: The results were obtained in the framework of the SASER-ADVAntage-NET and SpeeD projects, partly funded by the German ministry of education and research (BMBF) under contracts 16BP12400 and 13N13744, and by the European Commission in the Marie Curie project ABACUS
Stochastic Tamed 3D Navier-Stokes Equations: Existence, Uniqueness and Ergodicity
Creators: name: Röckner, Michael
name: Zhang, Xicheng
Publisher: name: arXiv
Year: 2008
Subjects: subject: Probability (math.PR)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 60H15, 37A25

description: In this paper, we prove the existence of a unique strong solution to a stochastic tamed 3D Navier-Stokes equation in the whole space as well as in the periodic boundary case. Then, we also study the Feller property of solutions, and prove the existence of invariant measures for the corresponding Feller semigroup in the case of periodic conditions. Moreover, in the case of periodic boundary and degenerated additive noise, using the notion of asymptotic strong Feller property proposed by Hairer and Mattingly \cite{Ha-Ma}, we prove the uniqueness of invariant measures for the corresponding transition semigroup.
description: 38Pages, Correct some errors
Οι βυζαντινές αγιολογικές και υμνολογικές πηγές για τον Αγιο Αρτέμιο
Creators: name: Βολάκης, Παναγιώτης Νέστορος
Publisher: name: Aristotle University of Thessaloniki
Year: 2008
Subjects: Αγ. Αρτέμιος
Αγιολογία
Μάρτυρες
Θεολογία
Μαρτύριο
Θαύματα
St. Artemius
Hagiography
Martyrs
Theology
Martyrdom
Miracles

description: Ο βασικός στόχος αυτής της μελέτης είναι η κατά το δυνατόν με πληρέστερο τρόπο δημιουργία του Αγιολογικού φακέλλου του στρατιωτικού αγίου και μάρτυρα του 4ου μ.Χ. αιώνα αγ. Αρτεμίου. Η μελέτη βασίζεται στον εντοπισμό και την χρήση τόσο των ιστορικών όσο και των αγιολογικών πηγών των σχετικών με τον άγιο. Ειδικότερα η εργασία κατ' αρχήν τοποθετεί τον άγιο στην εποχή του εξετάζοντας τα δεδομένα της και εκτείνεται στην παρουσίαση των Βυζαντινών και Μεταβυζαντινών πηγών των σχετικών με αυτόν. Επίσης συστηματικά εξετάζονται τα σωζόμενα κείμενα περί του μαρτυρίου και των θαυμάτων του και καταγράφεται η αποδιδόμενη από τους Βυζαντινούς τιμή προς αυτόν. Σχετική με αυτή την τιμή είναι και η δημοσίευση των υμνολογικών συνθέσεων και της παράδοσης που εξετάζονται σε επιμέρους σημεία της εργασίας αυτής.
description: The principal aim of this study has been to create as complete as possible the hagiographical dossier of the 4th A.D. military saint and martyr Artemius. This study is based on locating and using both historical and hagiographical resources related to our research. Specifically, the study begins with placing the Saint in his epoch thoroughly examining the time's data and moves into presenting Byzantine and Post-Byzantine reports about him. Also texts about his martyrdom and miracles are meticulously focused on while a recording of the tribute the byzantines paid to the saint is attempted. Relevant to this tribute is the hymnological tradition related with the Saint which has been recorded in specific chapters of the study.
Anti-alignment driven dynamics in the excited states of molecules under strong fields
Creators: name: Carrasco, Sebastián
name: Rogan, José
name: Valdivia, Juan Alejandro
name: Sola, Ignacio
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We develop two novel models of the H$_2^+$ molecule and its isotopes from which we assess quantum-mechanically and semi-classically whether the molecule anti-aligns with the field in the first excited electronic state. The results from both models allow us to predict anti-alignment dynamics even for the HD$^+$ isotope, which possesses a permanent dipole moment. The molecule dissociates at angles perpendicular to the field polarization in both the excited and the ground electronic state, as the population is exchanged through a conical intersection. The quantum mechanical dispersion of the initial state is sufficient to cause full dissociation. We conclude that the stabilization of these molecules in the excited state through bond-hardening under a strong field is highly unlikely.
description: 8 pages, 4 figures
1D atmospheric study of the temperate sub-Neptune K2-18b
Creators: name: Blain, Doriann
name: Charnay, Benjamin
name: Bézard, Bruno
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The atmospheric composition of exoplanets with masses between 2 and 10 M$_\oplus$ is poorly understood. In that regard, the sub-Neptune K2-18b, which is subject to Earth-like stellar irradiation, offers a valuable opportunity for the characterisation of such atmospheres. Previous analyses of its transmission spectrum from the Kepler, Hubble (HST), and Spitzer space telescopes data using both retrieval algorithms and forward-modelling suggest the presence of H$_2$O and an H$_2$--He atmosphere, but have not detected other gases, such as CH$_4$. We present simulations of the atmosphere of K2-18 b using Exo-REM, our self-consistent 1D radiative-equilibrium model, using a large grid of atmospheric parameters to infer constraints on its chemical composition. We show that our simulations favour atmospheric metallicities between 40 and 500 times solar and indicate, in some cases, the formation of H$_2$O-ice clouds, but not liquid H$_2$O clouds. We also confirm the findings of our previous study, which showed that CH$_4$ absorption features nominally dominate the transmission spectrum in the HST spectral range. We compare our results with results from retrieval algorithms and find that the H$_2$O-dominated spectrum interpretation is either due to the omission of CH$_4$ absorptions or a strong overfitting of the data. Finally, we investigated different scenarios that would allow for a CH$_4$-depleted atmosphere. We were able to fit the data to those scenarios, finding, however, that it is very unlikely for K2-18b to have a high internal temperature. A low C/O ratio ($\approx$ 0.01--0.1) allows for H$_2$O to dominate the transmission spectrum and can fit the data but so far, this set-up lacks a physical explanation. Simulations with a C/O ratio $
description: Accepted for publication in Astronomy & Astrophysics ; Exo-REM code and k-coefficients tables available here: https://gitlab.obspm.fr/dblain/exorem
Self-adjoint difference operators and symmetric Al-Salam--Chihara polynomials
Creators: name: Christiansen, Jacob S.
name: Koelink, Erik
Publisher: name: arXiv
Year: 2006
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 47B36 (Primary), 44A60 (Secondary)

description: The symmetric Al-Salam--Chihara polynomials for $q>1$ are associated with an indeterminate moment problem. There is a self-adjoint second order difference operator on $\ell^2(\Z)$ to which these polynomials are eigenfunctions. We determine the spectral decomposition of this self-adjoint operator. This leads to a class of discrete orthogonality measures, which have been obtained previously by Christiansen and Ismail using a different method, and we give an explicit orthogonal basis for the corresponding weighted $\ell^2$-space. In particular, the orthocomplement of the polynomials is described explicitly. Taking a limit we obtain all the $N$-extremal solutions to the $q^{-1}$-Hermite moment problem, a result originally obtained by Ismail and Masson in a different way. Some applications of the results are discussed.
description: 18 pages
Ηθικός προσανατολισμός και αξίες των στελεχών στην Ελλάδα
Creators: name: Χανδόλια, Ανδρομάχη Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2008
Subjects: Ηθικός προσανατολισμός
Ανομία
Αξίες
Κώδικας ηθικής
Στέλεχος
Τράπεζα
Ethical orientation
Anomia
Values
Code of ethics
Managers
Bank

description: Το περιεχόμενο της διπλωματικής εργασίας αναφέρεται στον ηθικό προσανατολισμό των στελεχών στην Ελλάδα και διαπραγματεύεται τις έννοιες της ανομίας, του κώδικα ηθικής, τις αξίες και τους παράγοντες που επηρεάζουν τα ηθικά διλήμματα. Επίσης, αναφέρεται ο εσωτερικός κώδικας ηθικής. Στη συνέχεια, διενεργείται μια έρευνα στον τραπεζικό τομέα και μέσω του συστήματος SPSS διεξάγονται χρήσιμα συμπεράσματα τα οποία συμβάλλουν στην έρευνα και στοχεύουν στην βελτίωση της υφιστάμενης κατάστασης.
description: The content of this project is referred to the ethical orientation of Greek managers and deals with anomia, code of ethics, values, factors that influence ethical dilemmas and internalised code of ethics. Furthermore, a survey is conducted and through SPSS some valuable conclusions are reached which shed light on the literature review and try to improve the current situation.
Fiery Cores: Bursty and Smooth Star Formation Distributions across Galaxy Centers in Cosmological Zoom-in Simulations
Creators: name: Orr, Matthew E.
name: Hatchfield, H Perry
name: Battersby, Cara
name: Hayward, Christopher C.
name: Hopkins, Philip F.
name: Wetzel, Andrew
name: Benincasa, Samantha M.
name: Loebman, Sarah R.
name: Sormani, Mattia C.
name: Klessen, Ralf S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present an analysis of the $R\lesssim 1.5$ kpc core regions of seven simulated Milky Way mass galaxies, from the FIRE-2 (Feedback in Realistic Environments) cosmological zoom-in simulation suite, for a finely sampled period ($Δt = 2.2$ Myr) of 22 Myr at $z \approx 0$, and compare them with star formation rate (SFR) and gas surface density observations of the Milky Way's Central Molecular Zone (CMZ). Despite not being tuned to reproduce the detailed structure of the CMZ, we find that four of these galaxies are consistent with CMZ observations at some point during this 22 Myr period. The galaxies presented here are not homogeneous in their central structures, roughly dividing into two morphological classes; (a) several of the galaxies have very asymmetric gas and SFR distributions, with intense (compact) starbursts occurring over a period of roughly 10 Myr, and structures on highly eccentric orbits through the CMZ, whereas (b) others have smoother gas and SFR distributions, with only slowly varying SFRs over the period analyzed. In class (a) centers, the orbital motion of gas and star-forming complexes across small apertures ($R \lesssim 150$pc, analogously $|l|<1^\circ$ in the CMZ observations) contributes as much to tracers of star formation/dense gas appearing in those apertures, as the internal evolution of those structures does. These asymmetric/bursty galactic centers can simultaneously match CMZ gas and SFR observations, demonstrating that time-varying star formation can explain the CMZ's low star formation efficiency.
description: 9 pages, 3 figures, accepted to ApJ Letters. One appended supplemental appendix and figure, which do not appear in the ApJ version
Χαρτογράφηση καμένων εκτάσεων και εκτίμηση των βραχυπρόθεσμων επιπτώσεων των πυρκαγιών με τη χρήση της τηλεπισκόπησης και των Γεωγραφικών Συστημάτων Πληροφοριών
Creators: name: Καταγής, Θωμάς Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2008
Subjects: Χαρτογράφηση καμένων εκτάσεων
Δορυφορική τηλεπισκόπηση
Γεωγραφικό Συστήματα Πληροφοριών
Αντικειμεναστροφής ανάλυση εικόνων
Εκτίμηση επιπτώσεων πυρκαγιών
Burned area mapping
Satellite remote sensing
GIS
Object based image analysis
Post fire impact assessement

description: Η εκτίμηση των οικονομικών και οικολογικών επιπτώσεων των πυρκαγιών θεωρείται σημαντική, οπότε απαιτούνται λεπτομερείς πληροφορίες που να αφορούν την έκταση των καμένων περιοχών καθώς και την κατάσταση της βλάστησης μετά την πυρκαγιά. Ο συνδυασμός των δορυφορικών δεδομένων και των Γεωγραφικών Συστημάτων Πληροφοριών (Γ.Σ.Π) στη διαχείρηση των δασικών πυρκαγιών μπορεί να συνεισφέρει σε μια βελτιωμένη και χαμηλού κόστους μέθοδο υπολογισμού της καμμένης έκτασης και των περιβαλλοντικών επιπτώσεων της πυρκαγιάς. Σκοπός της εργασίας ήταν να διερευνηθεί η χρησιμότητα της Τηλεπισκόπησης και των Γ.Σ.Π. στη χαρτογράφηση καμένης έκτασης στην Κασσάνδρα Χαλκιδικής και στην εκτίμηση των βραχυπρόθεσμων επιπτώσεων της πυρκαγιάς. Δύο αντικειμενοστραφή μοντέλα ταξινόμησης αναπτύχθηκαν για τη χαρτογράφηση της καμένης έκτασης με τη χρήση μιας ατμοσφαιρικά και μιας μη ατμοσφαιρικά διορθωμένης εικόνας Landsat. Επιπλέον, στατιστικά της πυρκαγιάς υπολογίστηκαν με τη χρήση εξειδικευμένου λογιστικού Γ.Σ.Π. Τέλος, η επανεμφάνιση της βλάστησης χαρτογραφήθηκε με αντικειμενοστραφές μοντέλο ταξινόμησης που βασίστηκε σε δορυφορική εικόνα SPOT, ένα χρόνο μετά την πυρκαγιά.
description: Assessment of the economic and ecological effects of fires is considered important and therefore requires detailed information concerning the location and extent of the burned areas and post-fire vegetation situation. The combined use of satellite data and G.I.S. can contribute to an improved, cost effective method for mapping the burned areas and assessing the fire effects. The aim of this study was to investigate the use of remote sensing and G.I.S. in mapping a burned area in Kassandra peninsula and assessing the short-term fire effects on the landscape. Two object-based classification models were developed to map the burned area based on the atmospherically and non-atmosph. corrected Landsat image. Fire statistics for the main land cover classes affected by the fire were also estimated using the G.I.S. software BAS. Additionally, an object-based classification model was developed by employing a SPOT image, in order to monitor the vegetation condition one year after the fire event.
On the approximability of the Maximum Agreement SubTree and Maximum Compatible Tree problems
Creators: name: Guillemot, Sylvain
name: Nicolas, Francois
name: Berry, Vincent
name: Paul, Christophe
Publisher: name: arXiv
Year: 2008
Subjects: subject: Computational Complexity (cs.CC)
subject: Discrete Mathematics (cs.DM)
subject: FOS: Computer and information sciences

description: This paper has been withdrawn by the corresponding author because the newest version is now published in Discrete Applied Mathematics.
description: Published in Discrete Applied Mathematics
title: Μεγάλοι τεχνολογικοί κίνδυνοι και απειλές και πως μπορεί να λαμβάνονται υπόψη στο χωροταξικό και πολεοδομικό σχεδιασμό
title: Large scale technological hazards and threats and how can be taken into account in spatial and urban planning
titleType: AlternativeTitle
Creators: name: Τσαπίνου, Μαρία
Publisher: name: Πανεπιστήμιο Δυτικής Αττικής
Year: 2021
Subjects: Τεχνολογικοί κίνδυνοι
Τεχνολογικά ατυχήματα
Seveso
Πολεοδομικός σχεδιασμός
Χωροταξικός σχεδιασμός
Επικίνδυνες ουσίες
Βάσεις δεδομένων
Περιβαλλοντική αδειοδότηση
Οδηγία Seveso III
Γενικό ΣΑΤΑΜΕ
Αρμοδιότητες περιφέρειας

description: Αποτυπώνονται κίνδυνοι από μεγάλα τεχνολογικά ατυχήματα, γίνεται ανάλυση αναφορικά με την εφαρμογή της Οδηγίας SEVESO III σε σχέση με το χωροταξικό και Πολεοδομικό Σχεδιασμό στην Ελλάδα λαμβάνοντας υπόψη την κείμενη νομοθεσία περί περιβαλλοντικής αδειοδότησης. Επίσης γίνεται αναφορά στην εφαρμογή της Οδηγίας σε άλλες χώρες. Αποτυπώνονται συμπεράσματα και προτάσεις.
On the complexity of finding gapped motifs
Creators: name: Michael, Morris
name: Nicolas, Francois
name: Ukkonen, Esko
Publisher: name: arXiv
Year: 2008
Subjects: subject: Computational Complexity (cs.CC)
subject: Discrete Mathematics (cs.DM)
subject: FOS: Computer and information sciences

description: This paper has been withdrawn by the corresponding author because the newest version is now published in Journal of Discrete Algorithms.
description: Published in Journal of Discrete Algorithms
Planning principles for the port-city interface
Creators: name: Colin, Lindsay John
Publisher: name: University of British Columbia
Year: 2009

description: The once close physical, functional, economic and cultural solidarity between ports and cities has diminished as a result of changes within both ports and their surrounding urban areas. Spatially, ports and cities have become separated as port structures have grown and evolved to meet the demands of trade and shipping technology over the past few decades. This separation is exacerbated by changing social priorities in the use of urban waterfront space and heightened interest in quality of life issues. As the pressures affecting the urban waterfront continue to grow, the port-city relationship has become strained. This paper is concerned with how the relationship between ports and cities can be improved to support the complementary development of the port with its urban region and, at the same time, maintain the quality of life city residents have come to expect. More specifically, this study seeks out the appropriate planning principles, strategies and approaches that can effectively address the problems and land use conflicts at the port-city interface. The study begins by exploring the literature of structural and societal changes that are affecting port city waterfronts and the conflicts that result between ports and cities in their planning for the waterfront. In a number of cases, these challenges are being met by the separate actions of ports and cities; however, given port-city linkages in many issues it is revealed that there is much to be gained through the effective coordination of efforts based on shared planning principles. A review of the Vancouver cityport confirms the port-city challenges suggested by the literature and interviews with municipal and port representatives lend support to the concept of port-city planning principles. The major conclusions of this study are that ports and cities can benefit from increased collaboration on the basis of agreed planning principles and a shared approach to waterfront planning that recognizes each party's needs. The challenge to be borne by city and port planners is one that seeks reconciliation, balance and the re-building of a synergistic relationship.
Comparison of the spatial properties of entrances to black holes and wormholes
Creators: name: Novikov, Igor D.
name: Repin, Serge V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The spatial properties of the entrances to spherically symmetric black holes and wormholes with zero and positive masses are compared. The properties were studied in terms of bulk and brane. The explicit expressions for the entrances are found and it is shown that in both representations the spatial funnels of the entrances to the wormholes are the steepest for the Schwarzschild black holes, and the least steep for the wormholes with zero mass.
description: 9 pages, 8 figures
Workshop day 3: Discussion of The First Ones
Creators: name: Parker, Verdena
name: Ammon, Danny
name: Campbell, Amy
name: George-Moore, Melodie
name: Jackson, Silis
name: Martins, Jacalyn
name: Newbold, Lindsey
name: Spence, Justin
name: Parker, Otis
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: hup

description: Audio file VP-210710-02: discussion of the story "The First Ones" (file VP-190408-11). Recorded at a workshop in Hoopa Valley. The participants identified here were present at most sessions during the workshop; additional people were also present, some of whom participate in the conversation.
Η λογοτεχνία ως μέσο διδασκαλίας του γλωσσικού μαθήματος σε μαθητές και μαθήτριες γλωσσικών μειονοτήτων στη δευτεροβάθμια εκπαίδευση
Creators: name: Σαμαρτζή, Αριέττα-Μαρία Ιωάννη
Publisher: name: Aristotle University of Thessaloniki
Year: 2008
Subjects: Λογοτεχνία και δεύτερη γλώσσα
Γλωσσικές μειονότητες και λογοτεχνία
Λογοτεχνία και διαπολιτισμική εκπαίδευση
Ελληνική γλώσσα και γλωσσικές μειονότητες
Κειμενικά είδη και διαπολιτισμική αγωγή
Λογοτεχνία και διδακτική της γλώσσας
Literature and secondary language
Language minorities and literature
Literature and multi cultural education
Greek language and language minorities
Literature and language teaching

description: Η παρούσα εργασία επιχειρεί να διερευνήσει τη δυνατότητα εκμάθησης της νέας ελληνικής γλώσσας ως δεύτερης από αλλόγλωσσους μαθητές και μαθήτριες μέσα από τη λογοτεχνία. Η πρόταση μας αφορά τη μεταμόρφωση ολόκληρου του εκπαιδευτικού συστήματος μέσα στα όρια της διαπολιτισμικής αγωγής. Η πρώτη ενότητα αναφέρεται στη διδασκαλία της γλώσσας στη δευτεροβάθμια εκπαίδευση γενικά και πιο ειδικά στη διδασκαλία της γραμματικής και του συντακτικού και στη μορφή της αρχαίας και νέας ελληνικής γλώσσας. Η δεύτερη ενότητα αναφέρεται στη διδασκαλία της ελληνικής γλώσσας ως δεύτερης σε αλλόγλωσσους μαθητές και μαθήτριες. Εξετάζεται η σημασία της μητρικής γλώσσας, οι νομοθετικές ρυθμίσεις που έχουν γίνει στο ελληνικό εκπαιδευτικό σύστημα και δίνεται έμφαση στις αρχές της διαπολιτισμικής αγωγής. Η τρίτη ενότητα αφορά το μάθημα της λογοτεχνίας στα πλαίσια μιας διαπολιτισμικής αξιοποίησης. Γίνεται αναφορά στη διδασκαλία των κειμενικών ειδών κι ερευνάται η λογοτεχνία ως διδακτικό υλικό για την κατάκτηση των μηχανισμών λειτουργίας της ελληνικής γλώσσας ως δεύτερης μέσα από διάφορες πρακτικές και επικοινωνιακές δραστηριότητες.
description: The present paper attempts to examine the possibility of teaching contemporary Greek language as a second language to students of other languages through literature. Our proposition concerns the transformation of the entire education system within the context of multi-cultural discipline. The first section refers to language teaching in secondary education in general and, more specifically, to the teaching of grammar and syntax, and to the form of ancient and contemporary Greek language. The second section refers to the teaching of Greek language as a secondary language to students of other languages. The role of the mother tongue is examined, as well as the legal adjustments that have occurred in the Greek education system, while emphasis is given to the principles of multi-cultural discipline. The third section concerns the subject of literature in the context of a multi-cultural utilisation. With reference to the teaching of texts of different kinds, there is an attempt to research the role of literature as teaching material for the acquisition of the function mechanisms of Greek language as a secondary language, through different practical and communication activities.
Logic Programming and Machine Ethics
Creators: name: Dyoub, Abeer
name: Costantini, Stefania
name: Lisi, Francesca A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computers and Society (cs.CY)
subject: Artificial Intelligence (cs.AI)
subject: Human-Computer Interaction (cs.HC)
subject: Machine Learning (cs.LG)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences
subject: D.1.6; K.4

description: Transparency is a key requirement for ethical machines. Verified ethical behavior is not enough to establish justified trust in autonomous intelligent agents: it needs to be supported by the ability to explain decisions. Logic Programming (LP) has a great potential for developing such perspective ethical systems, as in fact logic rules are easily comprehensible by humans. Furthermore, LP is able to model causality, which is crucial for ethical decision making.
description: In Proceedings ICLP 2020, arXiv:2009.09158. Invited paper for the ICLP2020 Panel on "Machine Ethics". arXiv admin note: text overlap with arXiv:1909.08255
Long-Lived Double-Barred Galaxies From Pseudo-Bulges
Creators: name: Debattista, Victor P.
name: Shen, Juntai
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A large fraction of barred galaxies host secondary bars that are embedded in their large-scale primary counterparts. These are common also in gas poor early-type barred galaxies. The evolution of such double-barred galaxies is still not well understood, partly because of a lack of realistic $N$-body models with which to study them. Here we report a new mechanism for generating such systems, namely the presence of rotating pseudo-bulges. We demonstate with high mass and force resolution collisionless $N$-body simulations that long-lived secondary bars can form spontaneously without requiring gas, contrary to previous claims. We find that secondary bars rotate faster than primary ones. The rotation is not, however, rigid: the secondary bars pulsate, with their amplitude and pattern speed oscillating as they rotate through the primary bars. This self-consistent study supports previous work based on orbital analysis in the potential of two rigidly rotating bars. The pulsating nature of secondary bars may have important implications for understanding the central region of double-barred galaxies.
description: Paper submitted to ApJL
Workshop day 4: Discussion of customary aspect
Creators: name: Parker, Verdena
name: Ammon, Danny
name: Campbell, Amy
name: George-Moore, Melodie
name: Jackson, Silis
name: Martins, Jacalyn
name: Newbold, Lindsey
name: Spence, Justin
name: Parker, Otis
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: hup

description: Audio file VP-220710-01: Discussion of customary aspect. Recorded at a workshop in Hoopa Valley. The participants identified here were present at most sessions during the workshop; additional people were also present, some of whom participate in the conversation.
Δασοκομική έρευνα σε συστάδες Μαύρης Πεύκας στο Δημόσιο δάσος Καταφυγίου-Αγίας Κυριακής Νομού Κοζάνης
Creators: name: Μπούσιος, Σπυρίδων Αθανασίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2008
Subjects: Δασοκομική έρευνα
Μαύρη Πεύκη
Silvicultural research
Black pine

description: Η παρούσα εργασία πραγματεύεται την δυναμική εξέλιξη των συστάδωνμαύρης πεύκης και την μελέτη και ανάλυση της δομής και των δασοαποδοτικώνστοιχείων (ξυλαποθέματος - προσαυξητικών στοιχείων, ξυλώδους όγκου κ.λ.π.)των συστάδων του Δημοσίου Δάσους Καταφυγίου – Αγίας Κυριακής της περιοχήςτων Πιέριων Όρων Νομού Κοζάνης.Με βάση τα στοιχεία που προκύπτουν από την ανωτέρω έρευναπροτείνονται τα κατάλληλα δασοκομικά μέτρα με σκοπό την ανόρθωση τωνυποβαθμισμένων συστάδων μαύρης πεύκης και την διαμόρφωση του δασικούτοπίου της περιοχής, ώστε να επιτευχθεί στο μέλλον η ποσοτική και ποιοτικήαύξηση των ανωτέρω συστάδων καθώς και η βελτίωση της αισθητικής τουτοπίου της περιοχής.
description: The present work is the silviculture research of the black pine stands inthe area of Pieria mountains at the public forest of Katafigio – Ag. Kiriakis.In particularly this research is dealing with the dynamic development ofblack pine stands, the analysis of stand structure as well as the growing stock,the increment, the gross total volume e.t.c.Based on the data arising from the above research, we propose thesuitable for each case sivlicultural measures, in order to achieve rehabilitationof degraded black pine stands and management of local forest landscape,aiming to the quantitative and qualitative increase of those stands and alsothe improvement of the scenic beauty.
Diagnosing First and Second Order Phase Transitions with Probes of Quantum Chaos
Creators: name: Huh, Kyoung-Bum
name: Ikeda, Kazuki
name: Jahnke, Viktor
name: Kim, Keun-Young
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We explore quantum phase transitions using two probes of quantum chaos: out-of-time-order correlators (OTOCs) and the $r$-parameter obtained from the level spacing statistics. In particular, we address $p$-spin models associated with quantum annealing or reverse annealing. Quantum annealing triggers first-order or second-order phase transitions, which is crucial for the performance of quantum devices. We find that the time-averaging OTOCs for the ground state and the average $r$-parameter change behavior around the corresponding transition points, diagnosing the phase transition. Furthermore, they can identify the order (first or second) of the phase transition by their behavior at the quantum transition point, which changes abruptly (smoothly) in the case of first-order (second-order) phase transitions.
description: 22 pages, 23 figures
Groups with the same cohomology as their profinite completions
Creators: name: Lorensen, Karl
Publisher: name: arXiv
Year: 2008
Subjects: subject: Group Theory (math.GR)
subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics
subject: 20JO6, 20E18, 20E26

description: For any positive integer $n$, $\mathcal{A}_n$ is the class of all groups $G$ such that, for $0\leq i\leq n$, $H^i(\hat{G},A)\cong H^i(G,A)$ for every finite discrete $\hat{G}$-module $A$. We describe certain types of free products with amalgam and HNN extensions that are in some of the classes $\mathcal{A}_n$. In addition, we investigate the residually finite groups in the class $\mathcal{A}_2$.
description: The final version corrects several misprints that appeared in the published version. In addition, it remedies some mistaken attributions regarding quasipotent groups
title: Το στοίχημα για μια αποτελεσματική ηγεσία στο σύγχρονο δημόσιο τομέα
title: The challenge of Leading effectively in the public sector
titleType: AlternativeTitle
Creators: name: Καρκαλά, Αικατερίνη
Publisher: name: Πανεπιστήμιο Δυτικής Αττικής
Year: 2021
Subjects: Δημόσια διοίκηση
Public administration
Ηγεσία
Αποτελεσματικότητα
Δημόσιος τομέας
Ηγέτης
Leadership
Στρατηγική
Καινοτομία
Εξουσία

description: Η παρούσα διατριβή ασχολείται με το ρόλο και τα χαρακτηριστικά του αποτελεσματικού ηγέτη στο χώρο του Δημόσιου Τομέα. Αρχικά παρουσιάζει αναλυτικά τις θεωρίες ηγεσίας, περιγράφοντας την ηγετική φυσιογνωμία. Στη συνέχεια επικεντρώνεται στην ηγεσία στις δημόσιες δομές, επιδιώκοντας να αποδώσει και να ερμηνεύσει την ιδανική ηγετική συμπεριφορά. Το ραγδαία μεταβαλλόμενο πολιτικό, οικονομικό, κοινωνικό, και τεχνολογικό περιβάλλον αναδεικνύει την ανάγκη για μια δυνατή, υπεύθυνη και σοβαρή ηγεσία. Το νέο μοντέλο ηγεσίας των σύγχρονων οργανισμών καθορίζει πλέον τόσο την επιτυχία όσο και τη θεσμική σταθερότητα και συνεχή ανάπτυξη του ίδιου του Δημόσιου Τομέα και του ανθρώπινου δυναμικού του.
title: Αξιολόγηση προτύπων μεταδεδομένων ψηφιακών αποθετηρίων
title: Evaluation of metadata standards in Digital Repositories
titleType: AlternativeTitle
Creators: name: Αποστολάκη, Μαρίλια
Publisher: name: Πανεπιστήμιο Δυτικής Αττικής
Year: 2020
Subjects: Dublin Core
Πρότυπα Μεταδεδομένων
Μελετητής Google
Ψηφιακά Αποθετήρια
Μεταδεδομένα
Ποσοστό Ευρετηρίασης
Ορατότητα
Τυποποίηση
Ανοικτή Πρόσβαση
Ανακάλυψη
Ανάκτηση
Google Scholar
Indexing ratio
Visibility
Metadata Standards
Metadata
Open access
Standardization
Discovery
Retrieval
Digital Repositories

description: Μεταπτυχιακή εργασία
description: Είναι γεγονός ότι η διενέργεια έρευνας, όπως επίσης η δημοσιοποίηση αυτής και των αποτελεσμάτων αυτής στην επιστημονική κοινότητα οδεύει στην εξ ολοκλήρου πραγματοποίησή της μέσω του διαδικτύου. Σε αυτήν την απαιτητική περίοδο οι βιβλιοθήκες και άλλοι ερευνητικοί φορείς αναπτύσσουν υπηρεσίες, όπως τα ψηφιακά αποθετήρια (ΨΑ), για να συμβάλλουν στην αύξηση της προβολής και αναγνώρισης του έργου των δημιουργών και της ερευνητικής δραστηριότητας των φορέων τους. Ωστόσο, έρευνες δείχνουν ότι η ευρετηρίαση του περιεχομένου των ΨΑ δεν πραγματοποιείται ικανοποιητικά από τις μηχανές αναζήτησης. Εκτιμάται ότι το πρόβλημα αυτό οφείλεται μεταξύ άλλων στην ποιότητα των μεταδεδομένων, όπως και στο πρότυπο μεταδεδομένων που έχει υιοθετηθεί από το εκάστοτε ΨΑ. Αυτή η εργασία στοχεύει να ελέγξει αν και κατά πόσο το πρότυπο μεταδεδομένων (Dublin Core), που χρησιμοποιείται από την πλειοψηφία των ΨΑ, επηρεάζει την ανακάλυψη του περιεχομένου τους από τις μηχανές αναζήτησης όπως το Google Scholar (GS). Επίσης, αν επιτυγχάνεται μεγαλύτερη ευρετηρίαση του περιεχομένου των ΨΑ που περιγράφεται με το ίδιο πρότυπο, αν ληφθούν κάποια μέτρα από πλευράς ΨΑ. Τέλος, εξετάζεται αν η παροχή με έγκυρο τρόπο συγκεκριμένων στοιχείων μεταδεδομένων επηρεάζει την ανακάλυψη κι ευρετηρίαση των πόρων των ΨΑ από τις δυναμικές μηχανές αναζήτησης όπως το GS. Για αυτή τη διπλωματική εργασία διεξήχθη η παρούσα ποσοτική έρευνα, με συμμετοχή 407 ΨΑ, 57 ελληνικών και 350 του εξωτερικού. Δημιουργήθηκαν δύο ερωτηματολόγια (σε ελληνικά και αγγλικά), τα οποία διανεμήθηκαν ηλεκτρονικά. Απαντήθηκαν 98 ερωτηματολόγια (ποσοστό 25%). Τα ευρήματα της έρευνας δεν επαληθεύουν στατιστική συσχέτιση του προτύπου μεταδεδομένων με το ποσοστό ευρετηρίασης, ούτε τη συσχέτιση των βελτιωτικών ενεργειών που προτείνονται με το ποσοστό ευρετηρίασης των πόρων των ΨΑ. Ωστόσο, επιβεβαιώνεται η στατιστική συσχέτιση μεταξύ των δύο μεταβλητών (Συγγραφέας και Λέξη-Κλειδί) με το ποσοστό ευρετηρίασης των πόρων ενός ΨΑ από το GS. Επομένως η διάθεση με έγκυρο τρόπο και ενδεχομένως με τη χρήση προτύπων όπως το Dublin Core τουλάχιστον συγκεκριμένων στοιχείων μεταδεδομένων, αν όχι όλων, θεωρείται σημαντική για την ανακάλυψη των ψηφιακών πόρων από τις δυναμικές μηχανές αναζήτησης όπως το GS.
Friction decoupling and loss of rotational invariance in flooding models
Creators: name: Cozzolino, Luca
name: Varra, Giada
name: Cimorelli, Luigi
name: Pianese, Domenico
name: Della Morte, Renata
Publisher: name: arXiv
Year: 2020
Subjects: subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences
subject: 86A05, 86-08, 86-10

description: Friction decoupling, i.e. the computation of friction vector components making separate use of the corresponding velocity components, is common in staggered grid models of the SWE simplifications (Zero-Inertia and Local Inertia Approximation), due to the programming simplicity and to the consequent calculations speed-up. In the present paper, the effect of friction decoupling has been studied from the theoretical and numerical point of view. First, it has been found that friction vector decoupling causes the reduction of the computed friction force and the rotation of the friction force vector. Second, it has been demonstrated that decoupled-friction models lack of rotational invariance, i.e. model results depend on the alignment of the reference framework. These theoretical results have been confirmed by means of numerical experiments. On this basis, it is evident that the decoupling of the friction vector causes a major loss of credibility of the corresponding mathematical and numerical models. Despite the modest speed-up of decoupled-friction computations, classic coupled-friction models should be preferred in every case.
Conceptual Software Engineering Applied to Movie Scripts and Stories
Creators: name: Al-Fedaghi, Sabah
Publisher: name: arXiv
Year: 2020
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: This study introduces another application of software engineering tools, conceptual modeling, which can be applied to other fields of research. One way to strengthen the relationship between software engineering and other fields is to develop a good way to perform conceptual modeling that is capable of addressing the peculiarities of these fields of study. This study concentrates on humanities and social sciences, which are usually considered softer and further away from abstractions and (abstract) machines. Specifically, we focus on conceptual modeling as a software engineering tool (e.g., UML) in the area of stories and movie scripts. Researchers in the humanities and social sciences might not use the same degree of formalization that engineers do, but they still find conceptual modeling useful. Current modeling techniques (e.g., UML) fail in this task because they are geared toward the creation of software systems. Similar Conceptual Modeling Language (e.g., ConML) has been proposed with the humanities and social sciences in mind and, as claimed, can be used to model anything. This study is a venture in this direction, where a software modeling technique, Thinging Machine (TM), is applied to movie scripts and stories. The paper presents a novel approach to developing diagrammatic static/dynamic models of movie scripts and stories. The TM model diagram serves as a neutral and independent representation for narrative discourse and can be used as a communication instrument among participants. The examples presented include examples from Propp s model of fairytales; the railway children and an actual movie script seem to point to the viability of the approach.
description: 13 pages, 16 figures
Workshop day 3: Elicitation of vocabulary related to new technology
Creators: name: Parker, Verdena
name: Ammon, Danny
name: Campbell, Amy
name: George-Moore, Melodie
name: Jackson, Silis
name: Martins, Jacalyn
name: Newbold, Lindsey
name: Spence, Justin
name: Parker, Otis
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: hup

description: Audio file VP-210710-01: Elicitation of vocabulary related to new technology and concepts that can be difficult to translate. Recorded at a workshop in Hoopa Valley. The participants identified here were present at most sessions during the workshop; additional people were also present, some of whom participate in the conversation.
Parallel tempering as a mechanism for facilitating inference in hierarchical hidden Markov models
Creators: name: Sacchi, Giada
name: Swallow, Ben
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computation (stat.CO)
subject: FOS: Computer and information sciences

description: The study of animal behavioural states inferred through hidden Markov models and similar state switching models has seen a significant increase in popularity in recent years. The ability to account for varying levels of behavioural scale has become possible through hierarchical hidden Markov models, but additional levels lead to higher complexity and increased correlation between model components. Maximum likelihood approaches to inference using the EM algorithm and direct optimisation of likelihoods are more frequently used, with Bayesian approaches being less favoured due to computational demands. Given these demands, it is vital that efficient estimation algorithms are developed when Bayesian methods are preferred. We study the use of various approaches to improve convergence times and mixing in Markov chain Monte Carlo methods applied to hierarchical hidden Markov models, including parallel tempering as an inference facilitation mechanism. The method shows promise for analysing complex stochastic models with high levels of correlation between components, but our results show that it requires careful tuning in order to maximise that potential.
Observation of unidirectional soliton-like edge states in nonlinear Floquet topological insulators
Creators: name: Mukherjee, Sebabrata
name: Rechtsman, Mikael C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: A salient feature of solid-state topological materials in two dimensions is the presence of conducting electronic edge states that are insensitive to scattering by disorder. Such unidirectional edge states have been explored in many experimental settings beyond solid-state electronic systems, including in photonic devices, mechanical and acoustic structures, and others. It is of great interest to understand how topological states behave in the presence of inter-particle interactions and nonlinearity. Here we experimentally demonstrate unidirectional soliton-like nonlinear states on the edge of photonic topological insulators consisting of laser-written waveguides. As a result of the optical Kerr nonlinearity of the ambient glass, the soliton-like wavepacket forms a non-diffracting coherent structure that slowly radiates power because of the intrinsic gaplessness of the system. The realization of soliton-like edge states paves the way to an understanding of topological phenomena in nonlinear systems and those with inter-particle interactions.
description: 5 pages, 3 figures, and Supplementary Information
Minutes of meeting of the Board of Trustees of the Winfield & Okanagan Centre Irrigation District, April 17, 1932
Creators: name: Trustees Of The Winfield And Okanagan Centre Irrigation District
Publisher: name: The University of British Columbia
Year: 2017

description: Minutes of meeting of the Board of Trustees of the Winfield & Okanagan Centre Irrigation District, dated April 17, 1932, regarding an offer made about Beaver Lake, an application for a licence, and irrigation water.
Statistics of Fourier Modes in Non-Gaussian Fields
Creators: name: Matsubara, Takahiko
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: Fourier methods are fundamental tools to analyze random fields. Statistical structures of homogeneous Gaussian random fields are completely characterized by the power spectrum. In non-Gaussian random fields, polyspectra, higher-order counterparts of the power spectrum, are usually considered to characterize statistical information contained in the fields. However, it is not trivial how the Fourier modes are distributed in general non-Gaussian fields. In this paper, distribution functions of Fourier modes are directly considered and their explicit relations to the polyspectra are given. Under the condition that any of the polyspectra does not diverge, the distribution function is expanded by dimensionless combinations of polyspectra and a total volume in which the Fourier transforms are performed. The expression up to second order is generally given, and higher-order results are also derived in some cases. A concept of N-point distribution function of Fourier modes are introduced and explicitly calculated. Among them, the one-point distribution function is completely given in a closed form up to arbitrary order. As an application, statistics of Fourier phases are explored in detail. A number of aspects regarding statistical properties of phases are found. It is clarified, for the first time, how phase correlations arise in general non-Gaussian fields. Some of our analytic results are tested against numerical realizations of non-Gaussian fields, showing good agreements.
description: 37 pages, 23 figures