cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Preprint.DL.Zhang&Zhu.4SPBL.pdf
Creators: name: Zhang, Ke
name: Zhu, Meina
Publisher: name: figshare
Year: 2022
Subjects: Curriculum and pedagogy theory and development
Continuing and community education
Education systems not elsewhere classified
Higher education
Teacher education and professional development of educators
Technical, further and workplace education
Professional education and training
Secondary education
Other education not elsewhere classified
Education assessment and evaluation
Educational technology and computing

description: In response to the increasing implementations of online problem-based learning (PBL), this paper presents a new framework, 4S PBL, with a wide range of strategies and technologies to empower instructors and learners. Based on a critical synthesis of research on and practice of PBL, self-regulated learning (SRL), socially shared regulated learning (SSRL), and related learning technologies, the 4S PBL framework outlines key strategies to address each of the four domains (i.e., motivation, affect, cognition and behaviors) at each PBL stage. A wide range of strategies is recommended with both practical examples and research support. In addition, an array of learning technologies is discussed (e.g., asynchronous, synchronous, specialized and emerging) with an emphasis on their proven or potential benefits in supporting online PBL. From multiple perspectives, the 4S PBL framework provides a solid foundation for educators and instructional design professionals to fully understand the complex dynamics of online PBL and empowers them with a pool of strategies and technologies accordingly. Similarly, online learners could also leverage the strategies to develop their own SRL and SSRL skills, collaborative learning, creative thinking, critical thinking, and problem-solving skills that are needed in the 21st century.
Radial Speed Evolution of Interplanetary Coronal Mass Ejections During Solar Cycle 23
Creators: name: Iju, Tomoya
name: Tokumaru, Munetoshi
name: Fujiki, Ken'ichi
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: We report radial speed evolution of interplanetary coronal mass ejections (ICMEs) detected by the SOHO/LASCO coronagraph, interplanetary scintillation (IPS) at 327 MHz, and in-situ observations. In this study, we analyze solar wind disturbance factor (g-value) data derived from IPS observations during 1997-2009 covering nearly the whole period of Solar Cycle 23. By comparing observations from the SOHO/LASCO, IPS, and in situ, we then identify 39 ICMEs that could be analyzed carefully. Here, we define two speeds V_SOHO and V_bg, which are initial speed of ICME and the speed of the background solar wind, respectively. Examinations of these speeds yield the following results; i) Fast ICMEs (with V_SOHO - V_bg > 500 km/s) rapidly decelerate, moderate ICMEs (with 0 km/s < V_SOHO - V_bg < 500 km/s) show either gradually decelerating or uniform motion, and slow ICMEs (with V_SOHO - V_bg < 0 km/s) accelerate. The radial speeds converge on the speed of background solar wind during their outward propagation. We subsequently find; ii) both the acceleration and deceleration are nearly complete by 0.79 (+/- 0.04) AU, and those are ended when the ICME speed reaches a given speed. We find the value of that to be 480 (+/- 21) km/s. iii) For the fast and moderate ICMEs, a linear equation with a constant coefficient is more appropriate than a quadratic equation to describe their kinematics, because the chi-square for the linear equation satisfies the statistical significance level of 0.05, while the quadratic one is not. These results support the hypothesis that the radial motion of ICMEs is governed by a drag force due to interaction with the background solar wind. These findings also suggest that ICMEs propagating faster than background solar wind are controlled mainly by the hydrodynamic Stokes drag.
description: 30 pages, 9 figures, 5 tables, accepted for publication in Solar Physics. Corrected typos, revised references and Tables 1 and 2 according to the Solar Physics format, results unchanged. LaTeX files uploaded (reduced to 28 pages). Corrected Table 1 on December 8, 2014
title: Ενεργειακή αξιολόγηση τεχνικών ανάπλασης εξωτερικών χώρων
Creators: name: Τσαγδης Χαραλαμπος
Publisher: name: Technical University of Crete
Year: 2014

description: Ο κτιριακός τομέας ευθύνεται για το 40% της συνολικής παγκόσμιας κατανάλωσης ενέργειας. Η αναζήτηση τρόπων για περιορισμό της υπέρμετρης κατανάλωσης ενέργειας και βελτίωσης των συνθηκών θερμικής άνεσης έχει οδηγήσει σε αναθεώρηση του τρόπου κατασκευής και λειτουργίας των κτιρίων. Η χρήση μοντέλων προσομοίωσης είναι πλέον απαραίτητη για να αποτιμηθούν σωστά οι ενεργειακές απαιτήσεις καθώς και για την εκτίμηση των συνθηκών θερμικής άνεσης. Η παρούσα διπλωματική βασίζεται σε εμπειρικούς κανόνες και απλούς υπολογισμούς οι οποίοι όμως δεν είναι αρκετοί για να προβλέψουν με ακρίβεια την επίδραση διαφόρων σχεδιαστικών επιλογών και παραμέτρων. Το σύνηθες πρόβλημα είναι ότι ο σχεδιασμός που γίνεται για "τυπικές μέρες" ή με βάση απλουστευμένα μοντέλα, οδηγεί σε μειωμένη ακρίβεια, άρα και αξιοπιστία. Ικανοποιητική ακρίβεια επιτυγχάνεται με τη χρήση ζωνικού τύπου μοντέλων τα οποία προκύπτουν από την υπόθεση ότι σε κάθε ζώνη πεδιακές μεταβλητές όπως π.χ. η θερμοκρασία και η υγρασία έχουν μόνο χρονική εξάρτηση. Γίνεται η υπόθεση ότι σε κάθε χρονική στιγμή η θερμοκρασία έχει μια κατάλληλη μέση τιμή ίδια σε κάθε σημείο της ζώνης. Η ακρίβεια από τα ζωνικά μοντέλα είναι στις περισσότερες περιπτώσεις ικανοποιητική. Σε περιπτώσεις όμως όπως ο εξαερισμός ή η ύπαρξη έντονων θερμοκρασιακών διαφορών απαιτείται λεπτομερέστερη μοντελοποίηση της ροής. Σε αυτές τις περιπτώσεις απαιτείται λεπτομερής υπολογισμός της κίνησης του αέρα στους εσωτερικούς αλλά και στους εξωτερικούς χώρους και η ζωνική θεώρηση οδηγεί σε σημαντικές αποκλίσεις.

Στην παρούσα εργασία εξετάζεται η χρήση μεθόδων υπολογιστικής ρευστομηχανικής για την λεπτομερή ανάλυση της ροής σε εξωτερικούς χώρους κτιρίων με σκοπό την ακριβέστερη περιγραφή περιπτώσεων όπου τα ζωνικά μοντέλα είναι ανεπαρκή. Στην μεθοδολογία που ακολουθείται γίνεται χρήση του λογισμικού EnergyPlus (το οποίο βασίζεται στη ζωνική θεώρηση) για τη θερμική προσομοίωση των κτιρίων και την εξαγωγή οριακών συνθηκών, η ύπαρξη των οποίων είναι απαραίτητη για την ανάλυση της ροής. Στη συνέχεια γίνεται λεπτομερής υπολογισμός της ροής στο εξωτερικό των κτιρίων με χρήση λογισμικού υπολογιστικής ρευστομηχανικής.

Για την εφαρμογή της παραπάνω μεθοδολογίας επιλέχθηκε ο χώρος μεταξύ των κτιρίων της Βιβλιοθήκης, του Μηχανογραφικού και του αμφιθεάτρου Α2 του Πολυτεχνείου Κρήτης το οποίο βρίσκεται στο Ακρωτήρι. Αρχικά έγινε συλλογή στοιχείων που αφορούν την κατασκευή των κτιρίων και του αίθριου χώρου, το είδος δραστηριότητας των χρηστών αλλά και κλιματικά δεδομένα της περιοχής.

Στη συνέχεια με την βοήθεια του DesignBuilder πραγματοποιήθηκε ο σχεδιασμός των κτιρίων και εισήχθησαν δεδομένα που αφορούν την μοντελοποίηση του ευρύτερου χώρου, όπως κατασκευαστικά υλικά. Τέλος με την βοήθεια του DesignBuilder CFD έγινε μελέτη της ροής και εξάχθηκαν τα αποτελέσματα που αφορούν πεδία ταχυτήτων, πίεσης και θερμοκρασιών.
Im ,Zeichen der Zeit‘ - oder die Stunde der charismatischen Führer (Teil 1). Die catilinarische Verschwörung als Ausdruck einer immanenten Systemkrise der Römischen Republik
Creators: name: Brüggemann, Jens
name: Ilgen, Matthias
Publisher: name: Forum Classicum
Year: 2017

description: -
description: Forum Classicum, Nr. 2 (2006): Forum Classicum
title: Ανάλυση και προέλευση των ελαφρών και βαρύτερων κλασμάτων υδρογονανθράκων πετρελαίου στον υδροφόρο ορίζοντα ενός διυλιστηρίου
Creators: name: Μάργαρη Ελένη
Publisher: name: Technical University of Crete
Year: 2005

description: Μη διαθέσιμο
Moments of a length function on the boundary of a hyperbolic manifold
Creators: name: Vlamis, Nicholas G.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 51M10, 57M50

description: In this paper we will study the statistics of the unit geodesic flow normal to the boundary of a hyperbolic manifold with non-empty totally geodesic boundary. Viewing the time it takes this flow to hit the boundary as a random variable, we derive a formula for its moments in terms of the orthospectrum. The first moment gives the average time for the normal flow acting on the boundary to again reach the boundary, which we connect to Bridgeman's identity (in the surface case), and the zeroth moment recovers Basmajian's identity. Furthermore, we are able to give explicit formulae for the first moment in the surface case as well as for manifolds of odd dimension. In dimension two, the summation terms are dilogarithms. In dimension three, we are able to find the moment generating function for this length function.
description: 22 pages, 2 figures. Version 3 added section relating to Bridgeman's identity. This version incorporates referee's comments and has been accepted for publication in Algebraic & Geometric Topology
Optimal scaling of the ADMM algorithm for distributed quadratic programming
Creators: name: Teixeira, André
name: Ghadimi, Euhanna
name: Shames, Iman
name: Sandberg, Henrik
name: Johansson, Mikael
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: This paper presents optimal scaling of the alternating directions method of multipliers (ADMM) algorithm for a class of distributed quadratic programming problems. The scaling corresponds to the ADMM step-size and relaxation parameter, as well as the edge-weights of the underlying communication graph. We optimize these parameters to yield the smallest convergence factor of the algorithm. Explicit expressions are derived for the step-size and relaxation parameter, as well as for the corresponding convergence factor. Numerical simulations justify our results and highlight the benefits of optimally scaling the ADMM algorithm.
description: Submitted to the IEEE Transactions on Signal Processing. Prior work was presented at the 52nd IEEE Conference on Decision and Control, 2013
Max-stable processes and the functional D-norm revisited
Creators: name: Aulbach, Stefan
name: Falk, Michael
name: Hofmann, Martin
name: Zott, Maximilian
Publisher: name: arXiv
Year: 2013
Subjects: subject: Probability (math.PR)
subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 60G70 (Primary), 60E05 (Secondary)

description: Aulbach et al. (2013) introduced a max-domain of attraction approach for extreme value theory in C[0,1] based on functional distribution functions, which is more general than the approach based on weak convergence in de Haan and Lin (2001). We characterize this new approach by decomposing a process into its univariate margins and its copula process. In particular, those processes with a polynomial rate of convergence towards a max-stable process are considered. Furthermore we investigate the concept of differentiability in distribution of a max-stable processes.
description: 22 pages
title: Λειτουργία συμβατικού συστήματος ενεργού ιλύος κάτω από χαμηλή στάθμη οξυγόνου
Creators: name: Τριχωνάς Νικόλαος
Publisher: name: Technical University of Crete
Year: 2005

description: Μη διαθέσιμο
title: Roles of heterogeneity in infectious disease epidemiology: implications on dynamics, inference and control of influenza and COVID-19
Creators: name: Endo, A
Publisher: name: London School of Hygiene & Tropical Medicine
Year: 2021

description: Heterogeneity plays a vital role in the epidemiology of infectious diseases. Individual- level variation in susceptibility or infectiousness due to predictable biological, behavioural or random factors can modify the transmission dynamics and cause deviation from what is expected from models assuming that transmission is homogeneous. One of the important sources of heterogeneity are social contact networks; respiratory infectious diseases including influenza and COVID-19 spread over social contact networks that are formed through mixing in multiple social settings. Households and schools are important places of transmission of many respiratory infectious diseases (although the role of schools in the transmission of COVID-19 remain unclear). Schoolchildren are often the main drivers of influenza epidemics, and they further spread the disease to other age groups by introducing infection into households and other settings. However, detailed transmission dynamics in households and schools have not been fully understood; in particular, it is not well known how group sizes and contact patterns affect transmission risks in heterogeneous populations. The underlying mechanisms of variations in transmission may not necessarily be explained by known factors. Even in such cases, quantifying such variation can be useful in characterising the transmission dynamics. SARS-CoV-2, along with other related coronaviruses, exhibits strong dispersion in the number of secondary transmissions per case. In addition to the basic reproduction number R0, which represents the mean number of secondary transmissions in fully susceptible population, the degree of variability around the mean highlights the importance of superspreading and potentially informs control policy targeting superspreading events. This PhD study attempts to further improve the current understanding of how heterogeneity affects transmission dynamics, inference and public health applications. Using datasets and models of high burden respiratory infectious diseases, influenza and COVID-19, this thesis investigated the roles of heterogeneity in various contexts, i.e. transmission settings such as households and schools and important research topics such as vaccine evaluation studies, international dissemination and contract tracing.
Branes, Weights and Central Charges
Creators: name: Bergshoeff, Eric A.
name: Riccioni, Fabio
name: Romano, Luca
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the properties of half-supersymmetric branes in string theory with 32 supercharges from a purely group-theoretical point of view using the U-duality symmetry of maximal supergravity and the R-symmetry of the corresponding supersymmetry algebra. In particular, we show that half-supersymmetric branes are always associated to the longest weights of the U-duality representation of the potentials coupling to them. We compare the features of branes with three or more transverse directions (that we call "standard" branes) to those with two or less transverse directions (that we denominate "non-standard" branes). We show why the BPS condition of the non-standard branes is in general degenerate and for each case we calculate this degeneracy. We furthermore show how the orbits of multi-charge configurations of non-standard branes can be calculated and give the U-duality invariants describing these orbits. We show that different orbits of non-standard branes can have the same BPS condition.
description: 35 pages, 14 figures, minor changes, version published on JHEP
inSPIRE: An open-source tool for increased mass spectrometry identification rates using Prosit spectral prediction.
Creators: name: Cormican, John A
name: Horokhovskyi, Yehor
name: Soh, Wai Tuck
name: Mishto, Michele
name: Liepe, Juliane
Publisher: name: The Francis Crick Institute
Year: 2022
Subjects: subject: Biochemistry & Proteomics
subject: Immunology
subject: FOS: Clinical medicine
subject: Tumour Biology

description: Rescoring of mass spectrometry (MS) search results using spectral predictors can strongly increase Peptide Spectrum Match (PSM) identification rates. This approach is particularly effective when aiming to search MS data against large databases, for example when dealing with non-specific cleavage in immunopeptidomics or inflation of the reference database for noncanonical peptide identification. Here, we present inSPIRE (in silico Spectral Predictor Informed REscoring), a flexible and performant open-source rescoring pipeline built on Prosit MS spectral prediction, which is compatible with common database search engines. inSPIRE allows large scale rescoring with data from multiple MS search files, increases sensitivity to minor differences in amino acid residue position, and can be applied to various MS sample types, including tryptic proteome digestions and immunopeptidomes. inSPIRE boosts PSM identification rates in immunopeptidomics, leading to better performance than the original Prosit rescoring pipeline, as confirmed by benchmarking of inSPIRE performance on ground truth datasets. The integration of various features in the inSPIRE backbone further boosts the PSM identification in immunopeptidomics, with a potential benefit for the identification of noncanonical peptides.
title: Ο ρόλος των εδαφικών συνθηκών στον αντισεισμικό σχεδιασμό χώρων υγειονομικής ταφής απορριμάτων
Creators: name: Γλαμπεδάκης Εμμανουήλ
Publisher: name: Technical University of Crete
Year: 2005

description: Μη διαθέσιμο
[Gymnasium, Heft 113/Heft 3 (2006) / Antike Welt (3/2006) / Geschichte Lernen  (Heft 109, 2006, 2-9) ...]
Creators: name: Rabl, Josef
Publisher: name: Forum Classicum
Year: 2017

description: -
description: Forum Classicum, Nr. 2 (2006): Forum Classicum
Portrait of Theodore William Dwight (1822-1892)
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2019

description: Theodore William Dwight (1822-1892), Professor of Municipal Law, 1858; Professor of Law of Contracts, Maritime and Admiralty Law, 1878; Emeritus, 1891; Warden of Law School, 1864-91; Founder of the Columbia Law School.
Erfaringer med å lage 3xMOOC
Creators: name: Jensenius, Alexander Refsum
Publisher: name: Zenodo
Year: 2022

description: I denne presentasjonen vil jeg presentere hvordan vi gjennom årene har utviklet tre komplette nettkurs ved Universitetet i Oslo: Music Moves (2016), Motion Capture (2022) og Pupillometry (2023). Fokuset vil ligge på muligheter og utfordringer i video i utdanningssammenheng.
description: Presentasjon på SIKT-konferansen "Video i undervisningen - God bruk og tekniske løsninger" arrangert ved UiO 7.-8.12.2022.
title: Ανάπτυξη συστήματος εξομοίωσης φωτοβολταϊκών στοιχείων βασισμένο σε αναδιατασσόμενη λογική
Creators: name: Τζιτζιλώνης Βασίλης
Publisher: name: Technical University of Crete
Year: 2005

description: Μη διαθέσιμο
The Effect of an Explicit Awareness-Raising Approach on Lexical Collocation Awareness and Knowledge
Creators: name: Alqaed, Mai A.
Publisher: name: University of Leicester
Year: 2022
Subjects: Uncategorized

description: This study investigates an explicit awareness approach to the acquisition of academic LCs focusing on learners’ engagement with consciousness-raising activities and measuring the effect of such treatment, compared to an implicit approach. It investigates learners’ awareness and knowledge. The approach aimed to encourage learners to notice the targeted collocations and to construct an awareness of collocations as well as develop their ability to use these collocations in novel situations. The theoretical framework adopted for the current study was a combination of the Language Awareness and Focus-on-Forms approaches (Ellis, 2001b). The former empirically operationalises Svalberg’s (2009) engagement with language construct analysing learners’ engagement with form-focus tasks cognitively, socially and affectively. While most of the literature focuses on two main LCs patterns (i.e., verb + noun and adjective+ noun); this study explores an explicit awareness approach to the six grammatical categories of academic LCs (i.e., verb + noun, noun + verb, noun + noun, adjective + noun, adverb + adjective, verb + adverb) proposed by O’Dell and McCarthy (2017). For the purposes of this study, a quasi-experimental design was applied, involving the selection of English major students in an experimental (N=34) and control group (N=32). The experimental intervention followed a focus-on-forms approach with explicit instruction of LCs and peer interaction. On the other hand, the control group were exposed to an implicit approach to vocabulary acquisition through reading texts and comprehension questions. The research study examined L2 learners’ receptive (i.e., noticing targeted and other LCs) and productive (i.e., bubble diagrams and free writing) knowledge. The results showed on one hand the experimental groups’ improved awareness and knowledge of LCs which was not present in the control groups’ findings. On the other, the participants in the experimental group showed a higher level of engagement with LCs whereas the control group lacked cognitive, social and affective engagement. The experimental group showed a significant improvement in their test results, rich peer interaction and positive attitudes towards the intervention. Thus, the explicit awareness approach had a positive effect on developing L2 learners’ awareness and knowledge towards the targeted LCs.
Mariko, from the series Fifty-three Stations of the Tōkaidō
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2019

description: The twenty-first image in this series, "Mariko" shows a wintry landscape with few travelers along the main road of this station, known for its tea houses and yam soup. In other versions of this series, Hiroshige depicted the Mariko station in spring, narrowing the visual information to a tea house and a bowl of soup.
Walter Berschin: Biographie und Epochenstil im lateinischen Mittelalter. Bd. 5: Kleine Topik und Hermeneutik der mittellateinischen Biographie
Creators: name: Schmitz, Dietmar
Publisher: name: Forum Classicum
Year: 2017

description: Rezension zu: Walter Berschin: Biographie und Epochenstil im lateinischen Mittelalter. Bd. 5: Kleine Topik und Hermeneutik der mittellateinischen Biographie. Register zum Gesamtwerk. Stuttgart: Hiersemann 2004. Quellen und Untersuchungen zur lateinischen Philologie des Mittelalters: 15. XIV, 361 S., (ISBN 3-7772-0409-9)
description: Forum Classicum, Nr. 3 (2006): Forum Classicum
Affine cones over smooth cubic surfaces
Creators: name: Cheltsov, Ivan
name: Park, Jihun
name: Won, Joonyeong
Publisher: name: arXiv
Year: 2013
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14E15, 14J45, 14R20, 14R25

description: We show that affine cones over smooth cubic surfaces do not admit non-trivial $\mathbb{G}_a$ -actions.
description: 32 pages. To appear in J. Eur. Math. Soc
Design Of Devices For Monitoring The Humidity Of Materials Based On Capacitive Converters
Creators: name: Каландаров, Палван
Publisher: name: figshare
Year: 2021
Subjects: subject: 70307 Crop and Pasture Post Harvest Technologies (incl. Transportation and Storage)
subject: FOS: Agriculture, forestry and fisheries

description: Рассмотрены проектирования высокочастотного устройства для контроля зерна и зерновой массы и продуктов их переработки в промышленных условиях. Проведен тактический анализ ранее проведенных исследований по выбору рабочей частоты и расчету мощности первичных преобразователей и предложен другой вариант выбора рабочей частоты и преобразователя мощности измеренного воздействия. Эти электрические свойства влажных материалов описываются формулами смеси, которые достаточно точны для влагосодержащих жидкостей (включая массу). Описаны формулы Винера, описывающие математические модели влажных материалов, зависимость связывающие диэлектрическую проницаемость n -фазной смеси с диэлектрической проницаемостью и объемными элементами отдельными компонентами. Представлена ​​научная и практическая ценность продукта, показанная где влажность обработки зерна является Рассмотрены вопросы высокочастотного устройства для контроля зерна и зерновой массы и продуктов их промышленной переработки в промышленных условиях. Проведен тактический анализ ранее проведенных исследований по выбору рабочей частоты и расчету мощности первичных преобразователей и предложен другой вариант выбора рабочей частоты и преобразователя мощности измеренного воздействия. Эти электрические свойства влажных материалов описываются формулами смеси, которые достаточно точны для влагосодержащих жидкостей (включая массу). Описаны формулы Винера, описывающие математические модели влажных материалов, зависимость связывающие диэлектрическую проницаемость n -фазной смеси с диэлектрической проницаемостью и объемными элементами отдельными компонентами. Представлена ​​научная и практическая ценность материала, показанная где влажность зерна является одним из важнейших технологических параметров, что требует разработки устройств контроля и контроля на всех этапах производства зерна и зернистых материалов на всех этапах производства и зернистых материалов.
[Gymnasium, Heft 113/Heft 6 (2006) / Antike Welt, Heft 6/2006 / Quodlibet 1. Ausgabe, Juni 2006...]
Creators: name: Rabl, Josef
Publisher: name: Forum Classicum
Year: 2017

description: -
description: Forum Classicum, Nr. 4 (2006): Forum Classicum
title: Μελέτη βελτιστοποίησης πρωτογενούς θραύσης με ανατινάξεις στο λατομείο Αδρανών Ζωφόρων Ηρακλείου
Creators: name: Μπέτση Σταματία
Publisher: name: Technical University of Crete
Year: 2003

description: Μη διαθέσιμο
title: Μεταβολή των ιδιοτήτων κεραμικών υποστρωμάτων ταϊαλίτη-μουλλίτη ανάλογα με τη σύσταση και τη δομή
Creators: name: Ρούγγος Βασίλης
Publisher: name: Technical University of Crete
Year: 2003

description: Μη διαθέσιμο
Harm Pinkster/Caroline Kroon: Latein - Eine Einführung
Creators: name: Schmitz, Dietmar
Publisher: name: Forum Classicum
Year: 2017

description: Rezension zu: Harm Pinkster/Caroline Kroon: Latein - Eine Einführung. Aus dem Niederländischen übersetzt von R. Hoffmann. Universitätsverlag Winter Heidelberg 2006, 251 S, (ISBN: 3-8253-5267-6)
description: Forum Classicum, Nr. 4 (2006): Forum Classicum
title: Χρήση στατιστικών διαγραμμάτων ελέγχου διεργασιών για την αξιολόγηση των μετρήσεων των on-line συστημάτων ελέγχου ποιότητας λιγνιτών
Creators: name: Μουρίκης Κωνσταντίνος
Publisher: name: Technical University of Crete
Year: 2003

description: Μη διαθέσιμο
The Pythagoras number and the $u$-invariant of Laurent series fields in several variables
Creators: name: Hu, Yong
Publisher: name: arXiv
Year: 2013
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11E25, 11E81, 11E20

description: We show that every sum of squares in the three-variable Laurent series field $\mathbb{R}((x,y,z))$ is a sum of 4 squares, as was conjectured in a paper of Choi, Dai, Lam and Reznick in the 1980's. We obtain this result by proving that every sum of squares in a finite extension of $\mathbb{R}((x,y))$ is a sum of $3$ squares. It was already shown in Choi, Dai, Lam and Reznick's paper that every sum of squares in $\mathbb{R}((x,y))$ itself is a sum of two squares. We give a generalization of this result where $\mathbb{R}$ is replaced by an arbitrary real field. Our methods yield similar results about the $u$-invariant of fields of the same type.
description: final version, major revisions in the style of writing (abstract and introduction rewritten) compared to v.1
Effect of Cancer Misinformation Exposure on Related Behavioural Intentions
Creators: name: Aftab, Omar
name: Murphy, Gillian
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Health Psychology
subject: Cognitive Psychology
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: Background: In recent years, rates of online cancer misinformation have grown, with many concerned that this could lead patients to alter their daily behaviours or forego conventional treatment. However, no published study has investigated whether exposure to cancer misinformation can affect health behaviours or behavioural intentions. Method: In this preregistered study, participants (N = 774) were exposed to cancer misinformation in the form of news stories before rating their intentions to engage in related behaviours. Each participant was randomly presented with two of four possible false cancer headlines such as “Drinking fluoridated water shown to increase cancer risk by a factor of 3”, before rating their intentions to engage in certain behaviours (such as avoiding fluoridated water). Participants were also randomly assigned to either an accuracy-nudge intervention intended to reduce susceptibility to misinformation or a control condition with no intervention. Results: Viewing the fake cancer headlines did not significantly affect participants’ behavioural intentions – e.g., those who saw the headline regarding fluoridated water were not more likely to report intentions to reduce their fluoridated water intake. The accuracy-nudge intervention did not affect behavioural intentions. Conclusion: Although cancer misinformation is considered a threat to public health, we conclude that once-off exposures to cancer misinformation may not be sufficient to significantly alter behavioural intentions. We note that claims about the effects of cancer misinformation on behaviour have not been adequately researched and we therefore call for more research into the behavioural effects of cancer misinformation exposure, particularly repeated exposure or information passed from trusted sources.
Conglomeration of kilometre-sized planetesimals
Creators: name: Shannon, Andrew
name: Wu, Yanqin
name: Lithwick, Yoram
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We study the efficiency of forming large bodies, starting from a sea of equal-sized planetesimals. This is likely one of the earlier steps of planet formation and relevant for the formation of the asteroid belt, the Kuiper belt and extra-solar debris disks. Here we consider the case that the seed planetesimals do not collide frequently enough for dynamical collisional to be important (the collisionless limit), using a newly constructed conglomeration code, and by carefully comparing numerical results with analytical scalings. In the absence of collisional cooling, as large bodies grow by accreting small bodies, the velocity dispersion of the small bodies ($u$) is increasingly excited. Growth passes from the well-known run-away stage (when $u$ is higher than the big bodies' hill velocity) to the newly discovered trans-hill stage (when $u$ and big bodies both grow, but $u$ remains at the big bodies' hill velocity). We find, concurring with the analytical understandings developed in Lithwick (2014), as well as previous numerical studies, that a size spectrum $dn/dR \propto R^{-4}$ results, and that the formation efficiency, defined as mass fraction in bodies much larger than the initial size, is $\sim {\mathrm{ a \,\, few}}\times R_\odot/a$, or $\sim 10^{-3}$ at the distance of the Kuiper belt. We argue that this extreme inefficiency invalidates the conventional conglomeration model for the formation of both our Kuiper belt and extra-solar debris disks. New theories, possibly involving direct gravitational collapse, or strong collisional cooling of small planetesimals, are required.
description: Accepted to ApJ
title: Ανάπτυξη αλγόριθμων και λογισμικού για την επίλυση τυπικών προβλημάτων της μηχανικής πετρωμάτων
Creators: name: Σειραδάκης Κωνσταντίνος
Publisher: name: Technical University of Crete
Year: 2003

description: Μη διαθέσιμο
title: Βιοεκχύλιση σιδηροπυρίτη, αρσενοπυρίτη μαύρων πετρών σε στήλη
Creators: name: Αλαμάνη Μαρία
Publisher: name: Technical University of Crete
Year: 2003

description: Μη διαθέσιμο
title: Γεωφυσική διασκόπηση με τη μέθοδο της ηλεκτρικής τομογραφίας και του υπεδάφειου ραντάρ στο λατομείο Ζωφόρων του Ν. Ηρακλείου
Creators: name: Χορευτάκη Γεωργία
Publisher: name: Technical University of Crete
Year: 2003

description: Μη διαθέσιμο
Color-Kinematics Duality for Pure Yang-Mills and Gravity at One and Two Loops
Creators: name: Bern, Zvi
name: Davies, Scott
name: Dennen, Tristan
name: Huang, Yu-tin
name: Nohle, Josh
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We provide evidence in favor of the conjectured duality between color and kinematics for the case of nonsupersymmetric pure Yang-Mills amplitudes by constructing a form of the one-loop four-point amplitude of this theory that makes the duality manifest. Our construction is valid in any dimension. We also describe a duality-satisfying representation for the two-loop four-point amplitude with identical four-dimensional external helicities. We use these results to obtain corresponding gravity integrands for a theory containing a graviton, dilaton, and antisymmetric tensor, simply by replacing color factors with specified diagram numerators. Using this, we give explicit forms of ultraviolet divergences at one loop in four, six, and eight dimensions, and at two loops in four dimensions.
description: 35 page, 10 figures, REVTex, ancillary mathematica file containing one-loop diagram numerators, latest version includes updated references, corrected two-loop numerators and various clarifications
title: Μελέτη βελτιστοποίησης μεθόδου χύτευσης τιτανίου σε συμβατικά πυρίμαχα υλικά με χρήση κεραμικών επικαλύψεων
Creators: name: Παπούλιας Ηλίας
Publisher: name: Technical University of Crete
Year: 2003

description: Μη διαθέσιμο
Friedrich Maier, Warum Latein? Zehn gute Gründe
Creators: name: Steinthal, Hermann
Publisher: name: Forum Classicum
Year: 2017

description: Rezension zu: Friedrich Maier, Warum Latein? Zehn gute Gründe. Stuttgart: Reclam 2008. UB 18565. (ISBN 978-3-15-018565-0).
description: Forum Classicum, Nr. 1 (2008): Forum Classicum
Injectivity w.r.t. Distribution of Elements in the Compressed Sequences Derived from Primitive Sequences over $Z/p^eZ$
Creators: name: Wang, Lin
name: Hu, Zhi
Publisher: name: arXiv
Year: 2013
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences
subject: 11T71, 11B50

description: Let $p\geq3$ be a prime and $e\geq2$ an integer. Let $σ(x)$ be a primitive polynomial of degree $n$ over $Z/p^eZ$ and $G'(σ(x),p^e)$ the set of primitive linear recurring sequences generated by $σ(x)$. A compressing map $φ$ on $Z/p^eZ$ naturally induces a map $\hatφ$ on $G'(σ(x),p^e)$. For a subset $D$ of the image of $φ$,$\hatφ$ is called to be injective w.r.t. $D$-uniformity if the distribution of elements of $D$ in the compressed sequence implies all information of the original primitive sequence. In this correspondence, for at least $1-2(p-1)/(p^n-1)$ of primitive polynomials of degree $n$, a clear criterion on $φ$ is obtained to decide whether $\hatφ$ is injective w.r.t. $D$-uniformity, and the majority of maps on $Z/p^eZ$ induce injective maps on $G'(σ(x),p^e)$. Furthermore, a sufficient condition on $φ$ is given to ensure injectivity of $\hatφ$ w.r.t. $D$-uniformity. It follows from the sufficient condition that if $σ(x)$ is strongly primitive and the compressing map $φ(x)=f(x_{e-1})$, where $f(x_{e-1})$ is a permutation polynomial over $\mathbb{F}_{p}$, then $\hatφ$ is injective w.r.t. $D$-uniformity for $\emptyset\neq D\subset\mathbb{F}_{p}$. Moreover, we give three specific families of compressing maps which induce injective maps on $G'(σ(x),p^e)$.
description: 42 pages, updated version
title: Αξιολόγηση γεωτρητικών δεδομένων και εξαγωγή γεωτεχνικών παραμέτρων για την αριθμητική προσομοίωση ευστάθειας πρανών
Creators: name: Καβουσάνος Εμμανουήλ
Publisher: name: Technical University of Crete
Year: 2003

description: Μη διαθέσιμο
Portrait of Henry Ogden Avery (1852-1890)
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2019

description: This posthumous portrait of Henry Ogden Avery was likely taken from a photograph. Brooklyn-born artist Platt Powell Ryder studied art in New Orleans and Europe, and established himself as a painter of portraits and genre scenes in New York City. The donors, Emma and Amy Welcher, were nieces of the sitter.
title: Χρήση μετεωρολογικού ραντάρ στη βραχυπρόθεσμη πρόγνωση βροχόπτωσης
Creators: name: Φαλεγκας Χαραλαμπος
Publisher: name: Technical University of Crete
Year: 2014

description: Η ολοένα και αυξανόμενη εμφάνιση ακραίων καιρικών φαινομένων και η πρόκληση καταστροφών κάνει αναγκαία την έρευνα και ανάπτυξη σύγχρονων μεθόδων πρόγνωσης και εκτίμησης καιρικών φαινομένων. Όσον αφορά την πρόγνωση της βροχόπτωσης η χρήση βροχομετρικών σταθμών και προϊόντων τηλεπισκόπησης είναι οι κύριες μέθοδοι που χρησιμοποιούνται. Στην παρούσα διπλωματική εργασία δίνεται έμφαση στον τρόπο λειτουργίας και στις πηγές αβεβαιότητας των μετεωρολογικών ραντάρ. Η αναδρομή στην ιστορία των ραντάρ αποτελεί την αρχή αυτής της μελέτης. Στη συνέχεια μέσω συγκεκριμένων αναφορών αναλύονται οι βασικές παράμετροι και εξισώσεις των μετεωρολογικών ραντάρ, όπως επίσης και η εκθετική σχέση Z-R μετατροπής της ανακλαστικότητας σε βροχόπτωση. Στο σημείο αυτό παρουσιάζεται η σπουδαιότητα της συχνότητας Doppler και ο ρόλος της στη λειτουργία και στην εξέλιξη των ραντάρ. Παρουσιάζονται επίσης όλα τα τμήματα από τα οποία αποτελείται ένα μετεωρολογικό ραντάρ και αναλύεται ο ρόλος τους ξεχωριστά. Σημαντικό κομμάτι της έρευνας αποτελεί και η εκμετάλλευση των δεδομένων των μετεωρολογικών ραντάρ, η απεικόνιση δηλαδή των ανακλαστικοτήτων στην οθόνη του ραντάρ και τα συμπεράσματα που προκύπτουν. Επίσης γίνεται αναφορά στις πληροφορίες που παίρνουμε σχετικά με την κίνηση των νεφικών σχηματισμών και των συνιστωσών των ανέμων. Ιδιαίτερη έμφαση δίνεται στις πηγές αβεβαιότητας και στην εξάλειψή της αλλά και στον τρόπο μετάδοσής της στα αποτελέσματα. Τέλος αναλύονται όλα τα σύγχρονα δεδομένα και οι καινοτομίες που υπάρχουν σχετικά με την λειτουργία των μετεωρολογικών ραντάρ αλλά και με την εξέλιξή τους.
A multiple filter test for the detection of rate changes in renewal processes with varying variance
Creators: name: Messer, Michael
name: Kirchner, Marietta
name: Schiemann, Julia
name: Roeper, Jochen
name: Neininger, Ralph
name: Schneider, Gaby
Publisher: name: arXiv
Year: 2013
Subjects: subject: Applications (stat.AP)
subject: Statistics Theory (math.ST)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Nonstationarity of the event rate is a persistent problem in modeling time series of events, such as neuronal spike trains. Motivated by a variety of patterns in neurophysiological spike train recordings, we define a general class of renewal processes. This class is used to test the null hypothesis of stationary rate versus a wide alternative of renewal processes with finitely many rate changes (change points). Our test extends ideas from the filtered derivative approach by using multiple moving windows simultaneously. To adjust the rejection threshold of the test, we use a Gaussian process, which emerges as the limit of the filtered derivative process. We also develop a multiple filter algorithm, which can be used when the null hypothesis is rejected in order to estimate the number and location of change points. We analyze the benefits of multiple filtering and its increased detection probability as compared to a single window approach. Application to spike trains recorded from dopamine midbrain neurons in anesthetized mice illustrates the relevance of the proposed techniques as preprocessing steps for methods that assume rate stationarity. In over 70% of all analyzed spike trains classified as rate nonstationary, different change points were detected by different window sizes.
description: Published in at http://dx.doi.org/10.1214/14-AOAS782 the Annals of Applied Statistics (http://www.imstat.org/aoas/) by the Institute of Mathematical Statistics (http://www.imstat.org)
title: Remembering in Times of Crisis: Resisting the Politics of Forgetting in Contemporary Greece.
Creators: name: Glynou Lefaki, Eirini
Publisher: name: University of Kent
Year: 2016

description: Having as a starting point the recent financial crisis in Greece, the thesis explores the question of what it means to remember. Employing from the arts the method of collage, the question on memory is examined in six chapters, each one trying to answer this question from a different perspective. Similarly to a collage where contrasting objects co-exist, the thesis consists of six chapters 'pasted' together in an attempt to draw a picture of remembering in times of crisis.
Taxonium, a web-based tool for exploring large phylogenetic trees.
Creators: name: Sanderson, Theo
Publisher: name: The Francis Crick Institute
Year: 2022
Subjects: subject: Model organisms
subject: Biochemistry & Proteomics
subject: Structural Biology & Biophysics
subject: Cell Biology
subject: Infectious Disease
subject: Immunology
subject: FOS: Clinical medicine

description: The COVID-19 pandemic has resulted in a step change in the scale of sequencing data, with more genomes of SARS-CoV-2 having been sequenced than any other organism on earth. These sequences reveal key insights when represented as a phylogenetic tree, which captures the evolutionary history of the virus, and allows the identification of transmission events and the emergence of new variants. However, existing web-based tools for exploring phylogenies do not scale to the size of datasets now available for SARS-CoV-2. We have developed Taxonium, a new tool that uses WebGL to allow the exploration of trees with tens of millions of nodes in the browser for the first time. Taxonium links each node to associated metadata and supports mutation-annotated trees, which are able to capture all known genetic variation in a dataset. It can either be run entirely locally in the browser, from a serverbased backend, or as a desktop application. We describe insights that analysing a tree of five million sequences can provide into SARS-CoV-2 evolution, and provide a tool at cov2tree.org for exploring a public tree of more than five million SARS-CoV-2 sequences. Taxonium can be applied to any tree, and is available at taxonium.org, with source code at github.com/theosanderson/taxonium.
Portrait of David Hosack (1769-1835)
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2019

description: Professor of Botany, 1795, also Professor Materia Medica, 1796-1811; Midwifery and Surgery, College of Physicians and Surgeons, 1807-26; Founder of the Elgin Botanical Garden and a pioneer of botanical science in America.
Symmetry-surfing the moduli space of Kummer K3s
Creators: name: Taormina, Anne
name: Wendland, Katrin
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Geometry (math.AG)
subject: Group Theory (math.GR)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: A maximal subgroup of the Mathieu group M24 arises as the combined holomorphic symplectic automorphism group of all Kummer surfaces whose Kaehler class is induced from the underlying complex torus. As a subgroup of M24, this group is the stabilizer group of an octad in the Golay code. To meaningfully combine the symmetry groups of distinct Kummer surfaces, we introduce the concepts of Niemeier markings and overarching maps between pairs of Kummer surfaces. The latter induce a prescription for symmetry-surfing the moduli space, while the former can be seen as a first step towards constructing a vertex algebra that governs the elliptic genus of K3 in an M24-compatible fashion. We thus argue that a geometric approach from K3 to Mathieu Moonshine may bear fruit.
description: 20 pages; minor changes; accepted for publication in the Proceedings Volume of String-Math 2012
Block Thresholding on the Sphere
Creators: name: Durastanti, Claudio
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: The aim of this paper is to study the nonparametric regression estimators on the sphere built by the needlet block thresholding. The block thresholding procedure proposed here follows the method introduced by Hall, Kerkyacharian and Picard in [Hall, Kerkyacharian, Picard, (1998), (1999)], modified to exploit the properties of the spherical standard needlets. Therefore, we will investigate on their convergence rates, attaining their adaptive properties over the Besov balls. This work is strongly motivated by issues arising in Cosmology and Astrophysics, concerning in particular the analysis of cosmic rays.
description: 25 pages
Buchbesprechung: John Henry Merryman (Hrsg.), Imperialism, Art and Restitution
Creators: name: Weller, Matthias
Publisher: name: Kunstrechtsspiegel
Year: 2017

description: Rezension zu: John Henry Merryman (Hrsg.), Imperialism, Art and Restitution Cambridge University Press, Cambridge (UK) 2006, ISBN 0521859298, 267 S. £ 45.00 (US $ 75.00).
description: Kunstrechtsspiegel, Nr. 1 (2008): Kunstrechtsspiegel
Application of the SP theory of intelligence to the understanding of natural vision and the development of computer vision
Creators: name: Wolff, J. Gerard
Publisher: name: arXiv
Year: 2013
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: The SP theory of intelligence aims to simplify and integrate concepts in computing and cognition, with information compression as a unifying theme. This article discusses how it may be applied to the understanding of natural vision and the development of computer vision. The theory, which is described quite fully elsewhere, is described here in outline but with enough detail to ensure that the rest of the article makes sense. Low level perceptual features such as edges or corners may be identified by the extraction of redundancy in uniform areas in a manner that is comparable with the run-length encoding technique for information compression. The concept of multiple alignment in the SP theory may be applied to the recognition of objects, and to scene analysis, with a hierarchy of parts and sub-parts, and at multiple levels of abstraction. The theory has potential for the unsupervised learning of visual objects and classes of objects, and suggests how coherent concepts may be derived from fragments. As in natural vision, both recognition and learning in the SP system is robust in the face of errors of omission, commission and substitution. The theory suggests how, via vision, we may piece together a knowledge of the three-dimensional structure of objects and of our environment, it provides an account of how we may see things that are not objectively present in an image, and how we recognise something despite variations in the size of its retinal image. And it has things to say about the phenomena of lightness constancy and colour constancy, the role of context in recognition, and ambiguities in visual perception. A strength of the SP theory is that it provides for the integration of vision with other sensory modalities and with other aspects of intelligence.
description: 40 pages, 16 figures
Lion with Peony
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2019

description: Lions and peonies are often paired and represent a popular motif in Japanese art. Imported from China, the lion and the peony stand for balancing power and beauty. The auspicious lions-and-peonies motif is featured in Japanese art in a wide range of media, from paintings and prints to netsuke carvings and clothing accessories.