cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Pressure-induced 1T to 3R structural phase transition in metallic VSe2: X-ray diffraction and first-principles theory
Creators: name: Pal, Srishti
name: Debnath, Koyendrila
name: Gupta, Satyendra Nath
name: Harnagea, Luminita
name: Muthu, D. V. S.
name: Waghmare, Umesh V.
name: Sood, A. K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We study pressure-induced structural evolution of vanadium diselenide (VSe2), a 1T polymorphic member of the transition metal di-chalcogenide (TMD) family using synchrotron-based powder X-ray diffraction (PXRD) and first-principles density functional theory (DFT). Our XRD results reveal anomalies at P ~4 GPa in c/a ratio, V-Se bond length and Se-V-Se bond angle signalling an isostructural transition. This is followed by a first order structural transition from 1T (space group P-3m1) phase to a 3R (space group R-3m) phase at P ~11 GPa due to sliding of adjacent Se-V-Se layers. We present various scenarios to understand the experimental results within DFT and find that the 1T to 3R transition can be captured only after inclusion of enthalpic correction associated with errors in cell volume with underestimated transition pressure. The abrupt increase in the Debye-Waller factors of Se atoms by a factor of ~4 and hence the anharmonic effects across the structural transition pressure are hitherto not reported so far and hint a possible way to understand the mismatch between the experimental and theoretical transition pressure values.
description: 18 pages, 5 figures, 1 table
Το πρόβλημα της λειτουργικής δέσμευσης των δικαιωμάτων: τα δικαιώματα στην υπηρεσία της Δημοκρατίας
Creators: name: Νάιντος, Βασίλειος Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: δικαιώματα
λειτουργική δέσμευση
Δημοκρατία
rights
functional commitment
Democracy

description: Σκοπός αυτής της εργασίας είναι η αναλυτική παρουσίαση των θέσεων και των συνεπειών της δημοκρατικής-λειτουργικής θεωρίας των θεμελιωδών δικαιωμάτων καθώς και της κριτικής που έχει η τελευταία υποστεί. Επειδή, όμως, αντιδιαστέλλεται η θεωρία αυτή προς τη φιλελεύθερη θεωρία των θεμελιωδών δικαιωμάτων, στην πρώτη ενότητα του κυρίου μέρους παρουσιάζεται η τελευταία. Στη συνέχεια, στη δεύτερη ενότητα του κυρίου μέρους αναλύεται η λειτουργική θεωρία εν γένει και η δημοκρατική-λειτουργική θεωρία ειδικότερα. Η ενότητα αυτή αποτελεί την εισαγωγή στο ζήτημα της δημοκρατικής-λειτουργικής θεώρησης των αποκαλούμενων «δικαιωμάτων επικοινωνίας» στη νομολογία του Ομοσπονδιακού Συνταγματικού Δικαστηρίου της Γερμανίας που αναπτύσσεται στην τρίτη ενότητα του κυρίου μέρους, καθώς και στο ζήτημα της δημοκρατικής-λειτουργικής θεώρησης της ελευθερίας του λόγου στην αμερικανική νομική θεωρία που αναπτύσσεται στην τέταρτη ενότητα του κυρίου μέρους. Μετά την ανάλυση των θέσεων που έχουν υποστηριχτεί σε γερμανική και αμερικανική νομική επιστήμη, ακολουθεί, στην πέμπτη ενότητα του κυρίου μέρους, η ανάλυση του ζητήματος της κοινωνικής/δημόσιας αποστολής του τύπου και αυτού της ύπαρξης ατομικού δικαιώματος ίδρυσης ραδιοφωνικού/τηλεοπτικού σταθμού που έχουν απασχολήσει τους συνταγματολόγους στην Ελλάδα. Στο τέλος, στον επίλογο, συνοψίζεται η εργασία και αποτυπώνονται ορισμένες καταληκτικές σκέψεις
description: The aim of this thesis is to analyze the views and the consequences of the democratic-functional theory of fundamental rights as well as the criticism of the latter. However, since this theory conflicts with the liberal theory of fundamental rights, the first section of the main part presents the latter. Following that, in the second section of the main part, the functional theory in general and the democratic-functional theory in particular are analyzed. This section introduces the issue of the democratic-functional perception of the so called "rights of communication" in the case law of the Federal Constitutional Court of Germany, which is analyzed in the third section of the main part, as well as the issue of the democratic-functional perception of the freedom of speech in the US legal literature which is analyzed in the fourth section of the main part. After the analysis of the views supported in the German and US legal science, the analysis of the issue of the social/public mission of the press and this of the existence of an individual right to set up a radio/television station that have been of great concern to the constitutional experts in Greece follows in the fifth section of the main part. Finally, in the epilogue, the thesis is summarized and some concluding thoughts are depicted
Kaehler manifolds admitting a flat complex conformal connection
Creators: name: Ganchev, Georgi
name: Mihova, Vesselka
Publisher: name: arXiv
Year: 2006
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53B35; 53C25

description: We prove that any Kaehler manifold admitting a flat complex conformal connection is a Bochner-Kaehler manifold with special scalar distribution and zero geometric constants. Applying the local structural theorem for such manifolds we obtain a complete description of the Kaehler manifolds under consideration.
description: 8 pages
Additional file 1: of Partners in Recovery: an early phase evaluation of an Australian mental health initiative using program logic and thematic analysis
Creators: name: Trankle, Steven
name: Reath, Jennifer
Publisher: name: Figshare
Year: 2019
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology

description: Nepean Blue Mountains Partners in Recovery Evaluation Framework (DOCX 111 kb)
Mathematical Modelling Of Drying Kinetics Of Date Seeds And Assessment Of Phytochemical Contents And Antibacterial Potency
Creators: name: Dbeibia, Amal
name: Khiari, Ramla
name: Mihoubi, Daoued
name: Zeghonda, Nahla
name: Boudhrioua, Nourhène
Publisher: name: Zenodo
Year: 2024
Subjects: Date seeds; Drying; Mathematical modeling; Phytochemical contents; Antibacterial potency

description: Presented as Oral Presentation: EU PRIMA Online Seesion; and in Book of Abstracts of 16th AgroStat Conference (AgroStat 2024). Bragança, Portugal (3rd-6th September 2024).
Τα αυτονομιστικά κινήματα στην Ευρώπη
Creators: name: Γιάκας, Γρηγόριος Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: αυτονομισμός
αυτοπροσδιορισμός
Ευρώπη
separationist
self-determination
Europe

description: Σκοπός της διπλωματικής εργασίας ήταν η εξέταση της έννοιας του αυτοπροσδιορισμού, όπως αυτή εξελίχτηκε ειδικά μετά τη διάλυση της Ε.Σ.Σ.Δ. και της Γιουγκοσλαβίας. Στη βάση αυτή αρχικά επιχειρήθηκε ο εντοπισμός των πηγών, της φύσης και του περιεχομένου του δικαιώματος αυτοπροσδιορισμού, και ειδικά στο πλαίσιο των Ηνωμένων Εθνών. Στη συνέχεια αναφέρθηκαν οι αιτίες αυτονομισμού στο πλαίσιο του ευρωπαϊκού χώρου και η ταυτότητα των κυριοτέρων αυτονομιστικών κινημάτων στον ευρωπαϊκό χώρο. Έγινε αναφορά στους στόχους των αυτονομιστικών κινημάτων και αναφέρθηκαν ειδικότερα οι περιπτώσεις της Σκωτίας και της Καταλωνίας ως πρόσφατα παραδείγματα. Αναφέρθηκε η γενική στάση της Ευρωπαϊκής Ένωσης απέναντι στον αυτονομισμό και ειδικότερα στις περιπτώσεις της Σκωτίας και της Καταλωνίας και προτάθηκε μια δημοκρατική λύση που θα υλοποιεί την αρχή του αυτοπροσδιορισμού σε ένα ειρηνικό πλαίσιο
description: The aim of the present thesis was the study of the term “self-determination”, as this term evolved since the dissolution of U.S.S.R. and Yugoslavia. On this basis, it was attempted to find the sources, the nature and essential components of this term, especially in the context of United Nations. There was a reference in the causes of separationism in the European context and the identity of the most prominent separationist movements in the European context. We analysed the aims of separationist movements and there was a special reference to the Scotland and Catalonia cases as recent examples. We also examined how European Union reacts to separationism and especially how it reacted in the cases of Scotland and Catalonia. Finally, a democratic solution was suggested in order for the principle of self-determination to be realised in a peaceful context.
Si et même si concessifs
Creators: name: Redknap, David Owen
Publisher: name: University of British Columbia
Year: 2009

description: Nous avons étudié les deux structures concessives en français moderne si p, q et même si p, q. Dans le premier chapitre, nous avons résumé certaines études antérieures sur divers sujets. La section sur la concession montre qu'il y a sous-entendue a une phrase telle que même si Jacques est la, je vais partir un rapport du genre si Jacques est Id, je ne vais pas partir; autrement dit, même si p, q implique si p,~ q (Moeschler & de Spengler, Martin, Ducrot). Par contre, une phrase telle que s'il est intelligent, il est brouillon se glose mieux par la paraphrase de Nguyen certes p, mais q: certes il est intelligent, mais il est brouillon. Dans la section sur la valeur de base des phrases en si p, q (concessives ou non concessives), on voit que si est le marqueur d'une supposition, et cette supposition sert comme cadre pour l'énonciation de q qui suit. La section sur même montre que ce mot est le marqueur d'une échelle argumentative (Ducrot), et qu'il est limite par le contexte et« ce à quoi on s'attendrait» (Lycan). Dans le deuxième chapitre, nous avons décrit notre corpus, et nous avons déterminé si les diverses structures proposées au chapitre précédent étaient présentes dans les exemples du corpus. La section sur si concessif montre que la paraphrase certes p, mais q peut toujours paraphraser les phrases concessives de la structure si p, q. Cependant, la structure si p,~ q est aussi présente, mais indirectement. Finalement, nous avons fait certaines observations sur le temps des verbes dans les deux propositions/? et q, et nous avons étudié les combinaisons présent/présent, imparfait/imparfait, passé composé/présent, et plus-que-parfait/imparfait. Les deux premières combinaisons montrent une opposition—par rapport aux si non concessifs— au niveau des temps verbaux, les deux dernières au niveau de l'aspect. La section sur les cas de même si révèle d'une part que toutes les phrases de cette structure possèdent la structure sous-entendue si p, ~ q, et d'autre part que certains exemples acceptent aussi la paraphrase de Nguyen. Ceci correspond à la distinction qu'Eriksson fait des phrases en même si portant sur des faits réels et non réels (virtuels).
Η κατάχρηση στην κεφαλαιαγορά
Creators: name: Παναγιώτου, Αντώνιος Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Κατάχρηση στην Κεφαλαιαγορά
Χειραγώγηση Αγοράς
Kατάχρηση προνομιακών πληροφοριών
Market Abuse
Market Manipulation
Insider Dealing

description: Αντικείμενο της εργασίας είναι η κατάχρηση στην κεφαλαιαγορά, η οποία εκδηλώνεται με δύο ειδικότερες μορφές: α)της καταχρηστικής εκμετάλλευσης προνομιακών πληροφοριών και β)της χειραγώγηση αγοράς. Το νομοθετικό πλαίσιο συντίθεται τόσο από τον Κανονισμό 596/2014 όσο και από την Οδηγία 57/2014, η οποία ενσωματώθηκε στην ελληνική έννομη τάξη με τον ν. 4443/2016. Ειδικότερα η εργασία πραγματεύεται τις αντικειμενικές και υποκειμενικές προϋποθέσεις των δύο ως άνω μορφών κατάχρησης, τα προληπτικά μέτρα, την αρμόδια αρχή και τις ποινικές κυρώσεις που προβλέπονται σε περιπτώσεις παραβάσεων
description: The objective of this essay is the abuse on the capital market, which is manifested in two more specific forms: a) insider dealing and b) market manipulation.The legislative framework is composed both of Regulation 596/2014 and of Directive 57/2014, which was incorporated into Greek law by law 4443/2016. In particular, thιs thesis deals with the objective and subjective conditions of the aforementioned abuses, the preventive measures, the competent authority and the criminal penalties provided for in cases of violations
Back to Earth: Molecular Approaches to Microbial Ecology Must Consider Soil Morphology and Physicochemical Properties
Creators: name: Dlott, Glade
Publisher: name: Digital Repository at the University of Maryland
Year: 2015
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Soil sciences
subject: Ecology
subject: Agriculture
subject: Community
subject: DNA Preservation
subject: Microbial Ecology
subject: Soil Depth
subject: Specific Activity

description: This project studied the influence of different long-term agricultural management regimes on soil microbial communities, and compared survival strategies of individual prokaryotic OTUs in diverse soils subjected to long-term incubation. Together these would show whether alterations to microbial communities affect rates of soil carbon cycling. Agricultural soils were sampled at arbitrary depths above and below the plow layer, and relative abundances of microbes were measured using high-throughput sequencing. `Activity' (rRNA:rDNA) ratios were calculated for individual OTUs identified by high-throughput sequencing of  tropical rainforest and temperate cornfield soils after incubation for one year with differing water and carbon availabilities. It was found that depth controls microbial communities to a greater degree than agricultural management, and that the characterization of microbial trophic strategies might be complicated by the often-ignored DNA preservation potential of soil. The study highlights the need for holistic approaches to testing hypotheses in modern microbial ecology.
Διασπορά ψευδών ειδήσεων στο διαδίκτυο
Creators: name: Λεμοντζή, Αργυρώ Ιωάννη
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Ψευδείς Ειδήσεις-Διαδίκτυο
Δικαίωμα Πληροφόρησης
Fake News
The right to information
Internet

description: Αντικείμενο της παρούσης διπλωματικής αποτελεί η διασπορά ψευδών ειδήσεων στο διαδίκτυο. Το περί ου ο λόγος θέμα απασχολεί και επηρεάζει στο μέγιστο βαθμό τις σύγχρονες κοινωνίες παγκοσμίως, αφού η εξέλιξη και η αυξανόμενη χρήση του διαδικτύου οδήγησε σε έξαρση το ανωτέρω φαινόμενο. Στο πλαίσιο, λοιπόν, της εργασίας αυτής, θα επιχειρηθεί προσέγγιση του θέματος από πλείστες πλευρές. Αρχικά, θα παρατεθεί ο ορισμός, ο τρόπος δημιουργίας και διάδοσης των ψευδών ειδήσεων στο Διαδίκτυο. Κατόπιν, θα αναπτυχθεί η ελευθερία της έκφρασης και της πληροφόρησης στον κυβερνοχώρο. Έπειτα, πρόκειται να αναλυθεί η περίπτωση της αναλογικής ή μη εφαρμογής των διατάξεων περί Τύπου στην περίπτωση του διαδικτύου. Παραπέρα, αναφορά θα γίνει αδικήματα του ποινικού κώδικα που συνδέονται με την διασπορά ψευδών ειδήσεων. Ακολούθως, θα γίνει λόγος για τον ρόλο των υπηρεσιών κοινωνικής δικτύωσης στην κυκλοφορία των ψεύτικων ειδήσεων και η ύπαρξη ή μη ευθύνης των παρόχων πρόσβασης στο διαδίκτυο. Επιπλέον, θα ακολουθήσει παρουσίαση των ενεργειών στις οποίες έχουν προβεί η Ευρώπη αλλά και ποικίλοι άλλοι διεθνείς οργανισμοί με σκοπό την περιστολή του φαινομένου. Εν συνεχεία, θα απασχολήσει το ζήτημα της υπολογιστικής προπαγάνδας και τέλος θα προβληθούν οι τρόποι αντιμετώπισης των δυσάρεστων συνεπειών από την κυκλοφορία ψευδών ειδήσεων
description: The subject of this thesis is the spread of false news on the Internet. This issue is of great concern to modern societies worldwide, since the evolution and increasing use of the Internet has led to the rising of the above phenomenon. In this thesis an approach of the issue will be attempted in many aspects. Initially, the definition and the way of creating and spreading false news on the Internet will be given. Then, is going to be developed the freedom of expression and information on the internet. Subsequently, it is analyzed if the laws that apply on Press can be applied in the case of the Internet as well. Also, reference will be made to criminal code offenses related to spreading false news. Furthermore, the role of social networking services in the spread of fake news and the responsibility of Internet access providers are going be analyzed. In addition, there is a presentation of the actions taken by Europe and various international organizations regarding the false news. Next, focus will be given on the issue of computational propaganda. Finally, at the last part are presented the ways to combat the spread of false news.
Additional file 2: of Partners in Recovery: an early phase evaluation of an Australian mental health initiative using program logic and thematic analysis
Creators: name: Trankle, Steven
name: Reath, Jennifer
Publisher: name: Figshare
Year: 2019
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Science Policy

description: Documents Reviewed (DOCX 16 kb)
S2 Table from Pup ultrasonic isolation calls of six gerbil species and the relationship between acoustic traits and body size
Creators: name: Kozhevnikova, Julia D.
name: Volodin, Ilya A.
name: Zaytseva, Alexandra S.
name: Ilchenko, Olga G.
name: Volodina, Elena V.
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: 60801 Animal Behaviour
subject: FOS: Biological sciences

description: GLMM results for species identity and log body weight (A), body length (B), head length (C) effects on the acoustic variables of USV calls of 6-10 day old pups of six Gerbillinae species. Species was introduced as categorical factor; log body weight, body length and head length as continuous factors.
Spin-Polarized Fractional Corner Charges and Their Photonic Realization
Creators: name: Gladstone, Ran Gladstein
name: Jung, Minwoo
name: Shvets, Gennady
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We demonstrate that a spin degree of freedom can introduce additional texture to higher order topological insulators (HOTIs), manifesting itself in novel topological invariants, phases, and phase transitions. Spin-polarized mid-gap corner states of various multiplicities are predicted for different HOTI phases, and novel bulk-boundary correspondence principles are defined based on quantized bulk invariants such as total and spin corner charge. Those are shown to be robust with respect to symmetry-preserving spin-flipping perturbations. Photonic realizations of spin-linked topological phases are demonstrated in engineered systems with synthetically emulated spin degree of freedom.
Το δίκαιο του ασύλου στο Βυζάντιο
Creators: name: Πολυζώνη, Βασιλική-Χαριτωμένη Ανδρέα
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Άσυλο
Βυζαντινή Αυτοκρατορία
Εκκλησία
Asylum
Byzantine Empire
Church

description: Η παρούσα εργασία μελετά το θεσμό της ασυλίας, μέσα από τις σχετικές ρυθμίσεις που συναντώνται στο δίκαιο της βυζαντινής περιόδου. Αρχικά, γίνεται αναφορά στις απαρχές του δικαίου του ασύλου στο ελληνικό δίκαιο, και έπειτα στο ρωμαϊκό. Εδώ διαπιστώνει κανείς την παρακμή του δικαίου της ασυλίας έως και την Κωδικοποίηση του Ιουστινιανού, οπότε και αποτελεί επίσημη ρύθμιση από το Κράτος. Στη συνέχεια, γίνεται μία μνεία για το θεσμό στα μεσαιωνικά χρόνια έως τα σύγχρονα. Επιπλέον, μέσα στην εργασία, βλέπει κανείς τη νομοθετική εξέλιξη του θεσμού του ασύλου στο βυζαντινό δίκαιο. Είναι μία ανάλυση των προϋποθέσεων και των περιορισμών που εισάγονται στο θεσμό της ασυλίας, από την κάθε κωδικοποίηση ή από μεμονωμένους αυτοκράτορες. Ακόμα, σημειώνονται τα θεσμικά χαρακτηριστικά του ασύλου. Εδώ γίνεται λόγος σε θέματα αρμοδιότητας. Εξετάζεται και ο ρόλος της Εκκλησίας, γιατί με τη χορήγηση του ασύλου, αυτή υπεισέρχεται σε θέματα άσκησης της κοσμικής εξουσίας. Δηλαδή, σε εκείνα που έχουν σχέση με τον ποινικό κολασμό άδικης πράξης. Και στο τέλος, παρατίθενται περιπτώσεις επίκλησης του δικαίου του ασύλου, από τις οποίες αντλούνται πολλές πληροφορίες, σχετικά με το θεσμό, στην εφαρμογή του
description: The goal of the following dissertation is to study the institution of the asylum, through the existing regulations found in the law of the Byzantine era. Initially, it refers to the beginning of the asylum law within the Greek and then the Roman laws. At his point, one can comprehend the decadence of the asylum law, until the codification of Justinian, beyond which point it is considered an official state regulation. Consequently, there is a reference to the institution from the medieval ages to current times. Furthermore, within the dissertation, one can see the legislational development of the asylum’s institution in Byzantine law. It is an analysis of the conditions which are introduced in the asylum’s institution, either by each codification, or by specific emperors. Moreover, there is a mention of the institutional characteristics of the asylum, where issues of authority are being elaborated. The role of the church is being examined, since by granting it asylum, it interferes in matters of state authority, for instance, matters that have to do with punishment. Finally, cases of calling upon the law of asylum are stated, through which, useful conclusions concerning this institution and its application can be drawn
Variational truncated Wigner approximation for weakly interacting Bose fields: Dynamics of coupled condensates
Creators: name: Mink, Christopher D.
name: Pelster, Axel
name: Benary, Jens
name: Ott, Herwig
name: Fleischhauer, Michael
Publisher: name: arXiv
Year: 2021
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: The truncated Wigner approximation is an established approach that describes the dynamics of weakly interacting Bose gases beyond the mean-field level. Although it allows a quantum field to be expressed by a stochastic c-number field, the simulation of the time evolution is still very demanding for most applications. Here, we develop a numerically inexpensive approximation by decomposing the c-number field into a variational ansatz function and a residual field. The dynamics of the ansatz function is described by a tractable set of coupled ordinary stochastic differential equations for the respective variational parameters. We investigate the non-equilibrium dynamics of a three-dimensional Bose gas in a one-dimensional optical lattice with a transverse isotropic harmonic confinement and neglect the influence of the residual field. The accuracy and computational inexpensiveness of our method are demonstrated by comparing its predictions to experimental data.
description: 22 pages, 6 figures
Effects of nucleus initialization on event-by-event observables
Creators: name: Tavares, B. M.
name: Drescher, H. -J.
name: Kodama, T.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this work we present a study of the influence of nucleus initializations on the event-by-event elliptic flow coefficient, $v_2$. In most Monte-Carlo models, the initial positions of the nucleons in a nucleus are completely uncorrelated, which can lead to very high density regions. In a simple, yet more realistic model where overlapping of the nucleons is avoided, fluctuations in the initial conditions are reduced. However, $v_2$ distributions are not very sensitive to the initialization choice.
description: 4 pages, 5 figures, to appear in the Bras. Jour. Phys
Simulation and reliability analysis of a flexible manufacturing system with AGV based material handling
Creators: name: Dai, Fuhong
Publisher: name: University of British Columbia
Year: 2009

description: This thesis investigates the reliability of a flexible manufacturing system with AGV based material handling. An analytical model was built using the stale space approach (Markov process). Although the method is shown to be tedious when the number of system compon ents becomes large , however , it does provide a powerful approach for reliability analysis of complex systems such as flexible manufacturing facilities. To simplify the analysis, state merging and state truncating techniques were used in carrying out the calculations. To compare with the analytical results, a simulation model was built using SLAM II discrete event modelling and simulation software. The results were very close to the analytical ones when same failure and repair rates were assumed 11r the basic components of the system. Overall, it was found that the simulation method was much simpler to develop and experiment with. A SLAM II simulation model of the system performance was also built to examine the operation of the FMS as a whole with failure and repair events.
Η προστασία των ανηλίκων στο διαδίκτυο
Creators: name: Βεσύρη, Σοφία Αθανασίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Διαδίκτυο
Ανήλικοι
Παιδική πορνογραφία – Διαδικτυακός εκφοβισμός
Internet
Children
Child pornography – Cyber bullying

description: Οι ανήλικοι χρησιμοποιούν σήμερα ολοένα και περισσότερο το διαδίκτυο με αποτέλεσμα να είναι εκτεθειμένοι στους κινδύνους που αυτό εγκυμονεί, όπως είναι ο διαδικτυακός εκφοβισμός, η παραβίαση προσωπικών δεδομένων, ο εθισμός. Επιπλέον, το διαδίκτυο και οι δυνατότητες που παρέχει έχουν συμβάλλει στην εξάπλωση φαινομένων σεξουαλικής εκμετάλλευσης ανηλίκων, όπως η παιδική πορνογραφία και η παιδική αποπλάνηση. Η ραγδαία αύξηση των κρουσμάτων παιδικής πορνογραφίας, διαδικτυακού εκφοβισμού και εκμετάλλευσης ανηλίκων γενικά τα τελευταία χρόνια καθιστά αναγκαία την άμεση δραστηριοποίηση των αρμόδιων φορέων για τον περιορισμό των φαινομένων δεδομένου ότι η πλήρης εξάλειψη αυτών είναι σχεδόν αδύνατη λόγω των σημερινών τεχνολογικών δυνατοτήτων
description: Children use today internet more and more. As a result they are exposed to the dangers of internet such as cyber bullying, breach of personal data, addiction. Furthermore, the internet and the possibilities that it gives have contributed to the spreading of phenomenon of sexual exploitation like child pornography and grooming. The rapid growth of phenomenon such as child pornography, cyber bullying and children’s exploitation generally make necessary the immediate action of competent services to reduce them given that the complete obliteration of these phenomenon is almost impossible because of technological possibilities
Approximate Graph Propagation
Creators: name: Wang, Hanzhi
name: He, Mingguo
name: Wei, Zhewei
name: Wang, Sibo
name: Yuan, Ye
name: Du, Xiaoyong
name: Wen, Ji-Rong
Publisher: name: arXiv
Year: 2021
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: Efficient computation of node proximity queries such as transition probabilities, Personalized PageRank, and Katz are of fundamental importance in various graph mining and learning tasks. In particular, several recent works leverage fast node proximity computation to improve the scalability of Graph Neural Networks (GNN). However, prior studies on proximity computation and GNN feature propagation are on a case-by-case basis, with each paper focusing on a particular proximity measure. In this paper, we propose Approximate Graph Propagation (AGP), a unified randomized algorithm that computes various proximity queries and GNN feature propagation, including transition probabilities, Personalized PageRank, heat kernel PageRank, Katz, SGC, GDC, and APPNP. Our algorithm provides a theoretical bounded error guarantee and runs in almost optimal time complexity. We conduct an extensive experimental study to demonstrate AGP's effectiveness in two concrete applications: local clustering with heat kernel PageRank and node classification with GNNs. Most notably, we present an empirical study on a billion-edge graph Papers100M, the largest publicly available GNN dataset so far. The results show that AGP can significantly improve various existing GNN models' scalability without sacrificing prediction accuracy.
description: ACM SIGKDD 2021
Line strengths of early-type galaxies
Creators: name: Ogando, Ricardo L. C.
name: Maia, Marcio A. G.
name: Pellegrini, Paulo S.
name: da Costa, Luiz N.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this paper we present measurements of velocity dispersions and Lick indices for 509 galaxies in the local Universe, based on high signal-to-noise, long slit spectra obtained with the 1.52 m ESO telescope at La Silla. The conversion of our measurements into the Lick/IDS system was carried out following the general prescription of Worthey and Ottaviani 1997. Comparisons of our measurements with those of other authors show, in general, good agreement. We also examine the dependence between these indices (e.g., Hbeta, Mg_2, Fe5270 and NaD) and the central velocity dispersion (sigma), and we find that they are consistent with those previously reported in the literature. Benefiting from the relatively large size of the sample, we are able to investigate the dependence of these relations on morphology and environment, here represented by the local galaxy density. We find that for metallic lines these relations show no significant dependence on environment or morphology, except in the case of NaD, which shows distinct behavior for E and S0. On the other hand, the Hbeta-logsigma shows a significant difference as a function of the local density of galaxies, which we interpret as being caused by the truncation of star formation in high density environments. Comparing our results with those obtained by other authors we find a few discrepancies, adding to the ongoing debate about the nature of these relations. Finally, we report that the scatter of the Mg indices versus sigma relations correlate with Hbeta, suggesting that age may contribute to the scatter. Furthermore, this scatter shows no significant dependence on morphology or environment. Our results are consistent with the current downsizing model, where low mass galaxies have an extended star formation history (abridged).
description: 88 pages, 24 figures, to be published in AJ, for further information see http://staff.on.br/ogando
Assessing Wetland Restoration on the Delmarva Peninsula using Vegetation Characteristics
Creators: name: McFarland, Eliza Katherine
Publisher: name: Digital Repository at the University of Maryland
Year: 2015
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: Environmental science
subject: Natural resource management
subject: biomass
subject: carbon
subject: restoration
subject: seed bank
subject: vegetation
subject: wetland

description: With wetland restoration, post-restoration monitoring is essential for determining developmental trajectories, particularly when comparing to natural reference systems. As part of the Mid-Atlantic Conservation Effects Assessment Project, 15 depressional wetlands on the Delmarva Peninsula of Maryland and Delaware were surveyed for above-ground vegetation and seed bank community composition, annual biomass production, and vegetation carbon content (10 restorations from prior-converted cropland (aged 5-31 years), and 5 natural forested depressions). Within each wetland, hydrologic zones (emergent, transition, upland) were also denoted and sampled. Restored wetlands showed more seed bank community similarity to natural wetlands than above-ground vegetation communities. Restorations also produced more annual herbaceous biomass than natural systems, and lower annual leaf litter biomass. After this period of post-restoration development, restored wetlands do not perform vegetation-related functions identical to their natural counterparts; however, these restorations are performing important vegetation-based functions that require yet more time to truly develop.
Choice Experiments and Design Decision-Making
Creators: name: Edwards, Robyn
Publisher: name: Digital Repository at the University of Maryland
Year: 2015
Subjects: subject: Landscape architecture
subject: choice experiment
subject: design decisions
subject: evidence-based design
subject: public participation

description: There is a growing interest in evidence-based design in landscape architecture.  This is an exploratory study of the choice experiment method: an economic approach used by many other disciplines but not yet landscape architecture, to collect empirical evidence on the public's preferences for different landscape design characteristics. A choice experiment was conducted for an open space development in downtown Baltimore. The outcomes of the experiment provided a basis for the design of a downtown surface parking lot into a public open space. Design decisions were made with better clarity and confidence that the design solution could maximize utility and value to the public.
Energy Band Gap Engineering of Graphene Nanoribbons
Creators: name: Han, Melinda Y.
name: Oezyilmaz, Barbaros
name: Zhang, Yuanbo
name: Kim, Philip
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate electronic transport in lithographically patterned graphene ribbon structures where the lateral confinement of charge carriers creates an energy gap near the charge neutrality point. Individual graphene layers are contacted with metal electrodes and patterned into ribbons of varying widths and different crystallographic orientations. The temperature dependent conductance measurements show larger energy gaps opening for narrower ribbons. The sizes of these energy gaps are investigated by measuring the conductance in the non-linear response regime at low temperatures. We find that the energy gap scales inversely with the ribbon width, thus demonstrating the ability to engineer the band gap of graphene nanostructures by lithographic processes.
description: 7 pages including 4 figures
Space Noncommutativity Corrections to the Cardy-Verlinde Formula
Creators: name: Setare, M R
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this letter we compute the corrections to the Cardy-Verlinde formula of Schwarzschild black holes. These corrections stem from the space noncommutativity. Because the Schwarzschild black holes are non rotating, to the first order of perturbative calculations, there is no any effect on the properties of black hole due to the noncommutativity of space.
description: 7 pages, no figures, accepted for publication in Int. J. Mod. Phys. A
Το δικαίωμα προηγούμενης ακρόασης στο πεδίο των φορολογικών διαφορών
Creators: name: Μακρή, Ελπίδα Κυριαζή
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: δικαίωμα προηγούμενης ακρόασης
φορολογικές διαφορές
Νομολογία Συμβουλίου της Επικρατείας
right of prior audience
tax litigations
Case law of the Council of the State

description: Το δικαίωμα προηγούμενης ακρόασης του διοικουμένου ειδικά στη φορολογική διαδικασία έχει τύχει μικρότερης επιστημονικής επεξεργασίας σε σχέση με το δικαίωμα αυτό κατά τη διοικητική διαδικασία εν γένει. Τούτο δε διότι η ιδιαίτερη φύση της φορολογικής ενοχής δημιουργεί πλείστα ζητήματα ως προς την έκταση εφαρμογής του στο πεδίο του φορολογικού δικαίου. Ήδη δημιουργούνται νέοι προσανατολισμοί, οι οποίοι το μεν απεικονίζονται στην φορολογική νομοθεσία, το δε διαπλάθονται από τη νομολογία του Συμβουλίου της Επικρατείας, υπό την επίδραση και της νομολογίας του Δικαστηρίου της Ευρωπαϊκής Ένωσης. Η παρούσα μελέτη επικεντρώνεται στους νέους αυτούς προσανατολισμούς της φορολογικής νομοθεσίας και του δικαστικού ελέγχου ως προς την τήρηση ή μη της προηγούμενης ακρόασης στη φορολογική διαδικασία
description: The right of prior audience specifically in tax procedure, has not been scrutinezed as much as in the administrative procedure in general. That is why the special nature of the tax burden creates many problems relating to the appliance of the right in the field of tax law. Already new orientations are arising in the scope of the right in the field of tax law, which appear not only in the tax legislation, but also in the case law of the Council of the State, and all this under the effect of the case law of the Court of Justice of the European Union. This paper concentrates on this new orientations of tax legislation and judiciary review according to the appliance or not of the right of prior audience in the tax procedure
Effect of Free Chlorine Oxidation on the Deposition Kinetics of Bacteriophage MS2 on a Silica Surface
Creators: name: Stephens, Heungkook Noriomoral
Publisher: name: Digital Repository at the University of Maryland
Year: 2015
Subjects: subject: Environmental engineering
subject: FOS: Environmental engineering
subject: Environmental science
subject: Chlorine
subject: Deposition
subject: MS2
subject: Oxidation
subject: QCM-D
subject: Silica

description: Understanding the transport kinetics of water contaminates such as pathogenic viruses around solid surfaces is important in controlling groundwater contaminant plumes and optimizing contaminant removal in sand filtration units. The effect of increasing oxidative stress, in the form of small doses of free chlorine, on the deposition behavior of bacteriophage MS2 onto a silica surface was examined using a quartz crystal microbalance with dissipation (QCM-D). MS2 deposition rates were analyzed by reaction time and inactivation level. A statistically significant increase in the deposition rate was identified between MS2 test solutions not exposed to free chlorine and most test solutions that were exposed. However, as exposure to free chlorine was increased, no relationship was able to be deduced from the collected deposition data. Potential explanations based on previous work were discussed. Observations also indicated that more comprehensive purification procedures in comparison to previous studies were necessary to obtain accurate QCM-D data.
Ο προσυμβατικός έλεγχος των δημοσίων συμβάσεων μεγάλης οικονομικής αξίας από το Ελεγκτικό Συνέδριο
Creators: name: Παπά, Θωμαή Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Ελεγκτικό Συνέδριο
Προσυμβατικός
Δημόσιες Συμβάσεις
Court of Auditors
Pre-contractual
Public procurement

description: Σκοπός της παρούσας μελέτης είναι η ανάλυση του προσυμβατικού ελέγχου των δημοσίων συμβάσεων μεγάλης οικονομικής αξίας από το Ελεγκτικό Συνέδριο. Πιο συγκεκριμένα, εισαγωγικά αναλύεται το ιστορικό πλαίσιο θέσπισης του ιδιαίτερου αυτού ελέγχου, καθώς και οι λόγοι, οι οποίοι οδήγησαν στην υιοθέτησή του, προκειμένου να αντιμετωπιστούν τα φαινόμενα διαφθοράς στις συμβάσεις μεγάλου οικονομικού αντικειμένου. Σε επόμενο στάδιο, ερευνάται το ειδικότερο πλαίσιο κανόνων που περιστοιχίζει τον έλεγχο τούτο, ξεκινώντας από την έννοια και τα είδη των υπαγόμενων συμβάσεων, τις προϋποθέσεις, το περιεχόμενο και την έκταση του ελέγχου και καταλήγοντας στην εξέταση των προϋποθέσεων και των ειδικότερων θεμάτων των ανώτερων βαθμών κρίσης της ελεγχόμενης σύμβασης. Τέλος, κρίθηκε σκόπιμο να γίνει αναφορά και στην σχέση του προσυμβατικού ελέγχου με τον έλεγχο που διενεργείται από την Ενιαία Ανεξάρτητη Αρχή Δημοσίων Συμβάσεων, καθώς η ίδρυση της Αρχής αυτής είναι μια από τις πρόσφατες μεταρρυθμίσεις που ενίσχυσε την δημοσιονομική διαφάνεια στον τομέα των συμβάσεων
description: The purpose of this study is to analyze the pre-contractual audit of public procurement of high economic value by the Court of Auditors. In particular, the introductory part analyzes the historical context of the enactment of this particular control, as well as the reasons that led to its adoption, in order to address the phenomena of corruption in the contracts of high economic value. At a later stage, the specific framework of rules surrounding this control is investigated, starting with the concept and types of contracts, the conditions, content and scope of the audit, and examining the conditions and the specific issues related to the higher degree of judgment of the audited contract. Finally, it was considered appropriate to refer also to the relationship between pre-contractual audit and the audit carried out by the Unified Independent Public Procurement Authority, since the establishment of this Authority is one of the recent reforms that has enhanced financial transparency in the area of procurement
Tests of the Gravitational Inverse-Square Law below the Dark-Energy Length Scale
Creators: name: Kapner, D. J.
name: Cook, T. S.
name: Adelberger, E. G.
name: Gundlach, J. H.
name: Heckel, B. R.
name: Hoyle, C. D.
name: Swanson, H. E.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We conducted three torsion-balance experiments to test the gravitational inverse-square law at separations between 9.53 mm and 55 micrometers, probing distances less than the dark-energy length scale $λ_{\rm d}=\sqrt[4]{\hbar c/ρ_{\rm d}}\approx 85 μ$m. We find with 95% confidence that the inverse-square law holds ($|α| \leq 1$) down to a length scale $λ= 56 μ$m and that an extra dimension must have a size $R \leq 44 μ$m.
description: 4 pages, 6 figures
Constraining CMB temperature evolution with Sunyaev-Zel'dovich galaxy clusters from the Atacama Cosmology Telescope
Creators: name: Li, Yunyang
name: Hincks, Adam D.
name: Amodeo, Stefania
name: Battistelli, Elia S.
name: Bond, J. Richard
name: Calabrese, Erminia
name: Choi, Steve K.
name: Devlin, Mark J.
name: Dunkley, Jo
name: Ferraro, Simone
name: Gluscevic, Vera
name: Guan, Yilun
name: Halpern, Mark
name: Hilton, Matt
name: Hlozek, Renee
name: Marriage, Tobias A.
name: McMahon, Jeff
name: Moodley, Kavilan
name: Naess, Sigurd
name: Nati, Federico
name: Niemack, Michael D.
name: Orlowski-Scherer, John
name: Page, Lyman
name: Partridge, Bruce
name: Salatino, Maria
name: Schaan, Emmanuel
name: Schillaci, Alessandro
name: Sehgal, Neelima
name: Sifon, Cristobal
name: Staggs, Suzanne T.
name: van Engelen, Alexander
name: Wollack, Edward J.
name: Xu, Zhilei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The Sunyaev-Zel'dovich (SZ) effect introduces a specific distortion of the blackbody spectrum of the cosmic microwave background (CMB) radiation when it scatters off hot gas in clusters of galaxies. The frequency dependence of the distortion is only independent of the cluster redshift when the evolution of the CMB radiation is adiabatic. Using 370 clusters within the redshift range $0.07\lesssim z\lesssim1.4$ from the largest SZ-selected cluster sample to date from the Atacama Cosmology Telescope, we provide new constraints on the deviation of CMB temperature evolution from the standard model $α=0.017^{+0.029}_{-0.032}$, where $T(z)=T_0(1+z)^{1-α}$. This result is consistent with no deviation from the standard adiabatic model. Combining it with previous, independent datasets we obtain a joint constraint of $α=-0.001\pm0.012$. Attributing deviation from adiabaticity to the decay of dark energy, this result constrains its effective equation of state $w_\mathrm{eff}=-0.998^{+0.008}_{-0.010}$.
Το λογοτεχνικό παράλογο ως αισθητική επιλογή κατά τις πρώτες μεταπολεμικές δεκαετίες στο έργο των Ζιώγα, Μάτεσι, Σκούρτη, Λειβαδίτη και Χάκκα
Creators: name: Ζαχαράτου, Αντωνία Τζιρίτα
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Παράλογο
Μεταπολεμικό θέατρο/λογοτεχνία
Αναπαραστάσεις βιαιότητας
Absurd
Postwar theatre/literature
Representations of violence

description: H παρούσα διπλωματική εργασία εξετάζει το παράλογο στη λογοτεχνία και το θέατρο, καθώς και τη διάδοσή του στην Ελλάδα κατά τις πρώτες μεταπολεμικές δεκαετίες. Στο πρώτο μέρος οριοθετείται συνοπτικά η έννοια του λογοτεχνικού παραλόγου και εντοπίζονται τα κύρια χαρακτηριστικά του. Στη συνέχεια, η εργασία επικεντρώνεται και επιχειρεί να εντοπίσει εάν υφίσταται μια ελληνική εκδοχή του παραλόγου, τα ιστορικοκοινωνικά πλαίσια στα οποία αναπτύσσεται καθώς και τα ιδιαίτερα χαρακτηριστικά που αυτή εμφανίζει. Θέτοντας ως βασικό άξονα τη διαπίστωση πως το παράλογο, στην εγχώρια εκδοχή του, εστιάζει στην ανάδειξη του παραλογισμού και της βιαιότητας της μεταπολεμικής κοινωνίας, καταθέτουμε μία πρόταση ενδεικτικών συγγραφέων και κειμένων που συνομιλούν με το παράλογο και το εντάσσουν στην ποιητική τους. Τέλος, με ερμηνευτικό πρίσμα το παράλογο επιχειρούμε αναγνώσεις δραματουργικών κειμένων των Ζιώγα, Μάτεσι και Σκούρτη και διηγημάτων των Χάκκα και Λειβαδίτη.
description: This MA thesis examines the absurd in literature and theatre, and its dissemination in Greece during the first postwar decades. The first part of the thesis provides a brief definition of the notion of literary absurd and identifies its main characteristics. Subsequently, the thesis attempts to answer the following questions: Is there a Greek version of the absurd? What is the sociohistorical context in which the Greek absurd was developed? What are the specific distinguishing characteristics of the Greek absurd? Based on the conclusion that the indigenous version of the absurd aims in unveiling the absurdity and the violence of the postwar society, we identified indicative writers and texts that converse with the absurd and integrate it in their poetics. Finally, we analysed theatrical pieces of Ziogas, Matesis and Skourtis, and short stories of Hakkas and Leivaditis using the absurd as our interpretative prism.
Azimuthal Correlations between Non-Photonic Electrons and Charged Hadrons in p+p Collisions from STAR
Creators: name: Lin, Xiaoyan
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We present the preliminary measurement of azimuthal correlations between non-photonic electrons and charged hadrons in p+p collisions at $\sqrt{s_{NN}} = 200$ GeV from STAR. The results are compared to PYTHIA simulations to estimate the relative contributions of $D$ and $B$ meson semi-leptonic decays to the non-photonic electrons.
description: 4 pages, 3 figures, Hard Probes 2006 proceedings, to appear in Nuclear Physics A
Additional file 1 of YpeB dimerization may be required to stabilize SleB for effective germination of Bacillus anthracis spores
Creators: name: Sayer, Cameron
name: Popham, David
Publisher: name: Figshare
Year: 2019
Subjects: subject: Biophysics
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Evolutionary Biology
subject: Developmental Biology

description: YpeB-cysteine mutant strain functional screens. Examination of Cys-substituted YpeB protein functionality in germination rate, proteolysis during germination, assembly into the spore, and stabilization of SleB in the spore. (PDF 358 kb)