cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Threshold of complexity and Arnold tongues in Kerr ring microresonators
Creators: name: Skryabin, D. V.
name: Fan, Z.
name: Villois, A.
name: Puzyrev, D. N.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We show that the threshold condition for two pump photons to convert into a pair of the sideband ones in Kerr microresonators with high-quality factors breaks the pump laser parameter space into a sequence of narrow in frequency and broad in power Arnold tongues. Instability tongues become a dominant feature in resonators with the finesse dispersion parameter close to and above one. As pump power is increased, the tongues expand and cross by forming a line of cusps, i.e., the threshold of complexity, where more sideband pairs become unstable. We elaborate theory for the tongues and threshold of complexity, and report the synchronisation and frequency-domain symmetry breaking effects inside the tongues.
description: 6 pages, 2 figures
D0-brane recoil revisited
Creators: name: Craps, Ben
name: Evnin, Oleg
name: Nakamura, Shin
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: One-loop string scattering amplitudes computed using the standard D0-brane conformal field theory (CFT) suffer from infrared divergences associated with recoil. A systematic framework to take recoil into account is the worldline formalism, where fixed boundary conditions are replaced by dynamical D0-brane worldlines. We show that, in the worldline formalism, the divergences that plague the CFT are automatically cancelled in a non-trivial way. The amplitudes derived in the worldline formalism can be reproduced by deforming the CFT with a specific "recoil operator", which is bilocal and different from the ones previously suggested in the literature.
description: 36 pages
ИГРА СЛОВ И СМЫСЛОВ: СРАВНИТЕЛЬНЫЙ ВЗГЛЯД НА ЮМОР В ТАТАРСКОЙ И УЗБЕКСКОЙ ДЕТСКОЙ ПОЭЗИИ
Creators: name: Джамилова, Башорат
name: Мингазева, Ляля
Publisher: name: Zenodo
Year: 2024

description: Юмор является неотъемлемой частью литературного творчества и играет важную роль в образовательном процессе и когнитивном развитии детей. Особенно интересными для изучения являются языковые игры, шутки и каламбуры, которые характерны для татарской и узбекской детской литературы и отражают уникальные культурные особенности этих народов.
The mechanism of action of inhibitory domain 1 of GAL4
Creators: name: Hentschel, Claudia Perelli
Publisher: name: University of British Columbia
Year: 2009

description: The mechanisms involved in the regulation of gene expression are of major interest in molecular biological research. Simpler models of lower eukaryotes such as yeast have been classically employed in such studies as a basis for the further characterization of more complex organisms. The galactose catabolism pathway of Saccharomyces cerevisiae provides an ideal model for research on gene regulation. The carbon source available to the yeast dictates the expression of the GAL genes involved in the utilization of galactose in budding yeast. The key regulator in this pathway is the transcriptional activator GAL4. GAL4 is active in the presence of galactose and absence of glucose, the preferred carbon source. When glucose is present, though, GAL4 is rendered inactive by several glucose repression mechanisms. One of these mechanisms acts through the central region of the GAL4 protein itself, which is composed of a glucose-responsive domain and at least three inhibitory domains, one being inhibitory domain 1. The activity of the inhibitory domains has been suggested to be governed by the glucose-responsive domain. With biochemical evidence, I suggest that the mechanism of transcriptional inactivation by inhibitory domain 1 occurs through multimerization of the GAL4 protein. Multimerization disrupts the formation of GAL4 dimers, preventing the transcriptional activator from binding to D N A and rendering the protein inactive.
title: Ανάπτυξη Μεθοδολογίας Καταγραφής & Ανάλυσης Συστηματικών Δραστηριοτήτων & Μετακινήσεων με Χρήση Γεωστατιστικών Μεθόδων - Συμβολή στην Εκτίμηση της Έκθεσης στην Ατμοσφαιρική Ρύπανση
titleType: AlternativeTitle
title: Development of Methodology fo the Record & Analysis of Systematic Activities & Travles with Use of Geostatistical Methods - Contribution to Air Pollution Exposure Estimation
Creators: name: Perperidou, Dionysia-Georgia C.
Publisher: name: National Technological University of Athens
Year: 2014
Subjects: Δίπολο δραστηριοτήτων - μετακινήσεων
Συστηματικός
Συχνότητα επανάληψης
Γεωστατιστικές μέθοδοι
Αστικός χώρος
Έκθεση στην ατμοσφαιρική ρύπανση
Activities - travels dipole
Systematic
Repetition Frequency
Geostatistical methods
Urban space
Air pollution exposure

description: 300 σ.
description: Η παρούσα διδακτορική διατριβή πραγματεύεται την ανάπτυξη μίας νέας μεθοδολογίας για την καταγραφή και την ανάλυση των δρατσηριοτήτων και των μετακινήσεων στον αστικό χώρο. Πυρήνας της νέας μεθοδολογίας είναι το δίπολο συστηματικών μετακινήσεων - δραστηριοτήτων, όπου σε κάθε δραστηριότητα αντιστοιχούν δύο μετακινήσεις: μία για την μετάβαση στην δραστηριότητα και μία για την επιστροφή μετά το πέρας της δραστηριότητας, ενώ η συστηματικότητα του διπόλου αφορά την συχνότητα επανάλληψής του σε επίπεδο ημέρας, εβδομάδας ή μήνα. Στην πλειονότητα των περιπτώσεων η κατοικία αποτελεί την αφαιτερία της μετακίνησης μετάβασης και ο προορισμός της μετακίνησης επιστροφή. Η νέα αυτή μεθοδολογία παρέχει την δυνατότητα μακροχρόνιας καταγραφής και ανάλυσης, τουλάχιστον ετήσιας, των δραστηριοτήτων και των μετακινήσεων στον αστικό χώρο. Στο πλαίσιο της διδακτορικής διατριβής η μεθοδολογία χρησιμοποιήθηκε για την εκτίμηση της ετήσιας έκθεσης του πληθυσμού του Λεκανοπεδίου Αθηνών στην ατμοσφαιρική ρύπανση με χρήση γεωστατιστικών μεθόδων.
description: The present thesis concerns the development of a new methodology for the record and the analysis of activities and travels in urban space. The core of this new methodology is the systematic activities-travels dipole, where in each activity two travles correspond: one for the going to activity' s location and one for the return from activiy's location after the end of the participation to the activity. The systematic concerns dipole' repetition frequency within the day, the week or the mounth. In the majority of the cases residence is the start point of the going travel and the end point of the return travel. This new methodology grants the ability for long term record and analysis, at least yearly, of activities and travles in urban space. In the framework of the present thesis the methodology was used for the estimation of population's exposure to air pollution in Attica Region, with use of geostatistical methods.
The inherent community structure of hyperbolic networks
Creators: name: Kovács, Bianka
name: Palla, Gergely
Publisher: name: arXiv
Year: 2021
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: A remarkable approach for grasping the relevant statistical features of real networks with the help of random graphs is offered by hyperbolic models, centred around the idea of placing nodes in a low-dimensional hyperbolic space, and connecting node pairs with a probability depending on the hyperbolic distance. It is widely appreciated that these models can generate random graphs that are small-world, highly clustered and scale-free at the same time; thus, reproducing the most fundamental common features of real networks. In the present work, we focus on a less well-known property of the popularity-similarity optimisation (PSO) model and the $\mathbb{S}^1/\mathbb{H}^2$ model from this model family, namely that the networks generated by these approaches also contain communities for a wide range of the parameters, which was certainly not an intention at the design of the models. We extracted the communities from the studied networks using well-established community finding methods such as Louvain, Infomap and label propagation. The observed high modularity values indicate that the community structure can become very pronounced under certain conditions. In addition, the modules found by the different algorithms show good consistency, implying that these are indeed relevant and apparent structural units. Since the appearance of communities is rather common in networks representing real systems as well, this feature of hyperbolic models makes them even more suitable for describing real networks than thought before.
description: 99 pages, 96 figures
Η ενδικοφανής προσφυγή ως μέσο εξωδικαστικής επίλυσης διοικητικών διαφορών και ως προϋπόθεση του παραδεκτού ενδίκων βοηθημάτων
Creators: name: Λαμπρόπουλος, Αλέξανδρος-Γεώργιος Ιωάννη
Publisher: name: Aristotle University of Thessaloniki
Year: 2010
Subjects: Ενδικοφανής προσφυγή
Διοικητική διαφορά
Administrative appeal
Administrative disputes

description: Στην παρούσα μελέτη έγινε μια ανάλυση του θεσμού της ενδικοφανούς προσφυγής και της θέσης του στο σύστημα της διοικητικής δικαιοσύνης. Αρχικά, ως εισαγωγή, αναφέρθηκαν τα βασικά χαρακτηριστικά της ενδικοφανούς προσφυγής και οι ομοιότητες και οι διαφορές της, αφενός με τις λοιπές διοικητικές προσφυγές και αφετέρου με τα διάφορα ένδικα βοηθήματα. Εν συνεχεία παρουσιάστηκε ο ρόλος της ενδικοφανούς προσφυγής ως μέσο εξωδικαστικής επίλυσης διοικητικών διαφορών και εξετάστηκαν διάφορα επιμέρους ζητήματα που σχετίζονται με την ενδικοφανή προσφυγή, ενώ ειδική μνεία έγινε και σε θέματα που αφορούν παραλείψεις της διοικησεως. Ακόμη παρουσιάστηκε ο ρόλος της ενδικοφανούς προσφυγής ως προϋπόθεσης του παραδεκτού ενδίκων βοηθημάτων, ο υποχρεωτικός χαρακτήρας της άσκησής της και η συνταγματικότητά του, καθώς και το θέμα της γνωστοποίησης της ενδικοφανούς προσφυγής και των στοιχείων της (προθεσμία, όργανο, συνέπειες μη άσκησής της) στο διοικούμενο και οι συνέπειες της μη γνωστοποίησης των ανωτέρω στοιχείων (άρση του απαραδέκτου του ασκηθέντος ενδίκου βοηθήματος). Τέλος στον επίλογο παρατέθηκαν ορισμένα ενδιαφέροντα συμπεράσματα που εξήχθησαν από τη μελέτη αυτή και ορισμένες κριτικές παρατηρήσεις, όσον αφορά τον εν λόγω θεσμό, την πρακτική εφαρμογή του και το αν και κατά πόσο έχει επιτύχει τους σκοπούς για τους οποίους θεσπίσθηκε.
description: In the present study we analyzed the institution of the administrative appeal and its position in the system of administrative justice. In the beginning, as an introduction, we mentioned the basic characteristics of the administrative appeal and we pointed at the similarities and the differences between it and the other administrative appeals and the legal means. Then we presented the role of the administrative appeal as means of solving administrative disputes out of court and we also investigated some important matters related to the administrative appeal, while we made a special reference into matters that are related to omissions of the administration. Furthermore we presented the role of the administrative appeal as a condition of admissibility of appeals in court, the obligatory character of the administrative appeal and its constitutionality and the issue of the notification to those concerned, of their right to lodge the administrative appeal and also the notification of all of its elements (deadline, organ, consequences of the omission to lodge the administrative appeal) and the consequences of not notifying all the above to those interested (the appeal in front of the court will not lie). Finally, as an epilogue, we cited some interesting conclusions drawn of this study and we made some critical remarks about the institution of administrative appeal and its enforcement, and we wondered whether it has achieved the goals for which it was established.
Hurdles for Recent Measures in Eternal Inflation
Creators: name: Aguirre, Anthony
name: Gratton, Steven
name: Johnson, Matthew C
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In recent literature on eternal inflation, a number of measures have been introduced which attempt to assign probabilities to different pocket universes by counting the number of each type of pocket according to a specific procedure. We give an overview of the existing measures, pointing out some interesting connections and generic predictions. For example, pairs of vacua that undergo fast transitions between themselves will be strongly favored. The resultant implications for making predictions in a generic potential landscape are discussed. We also raise a number of issues concerning the types of transitions that observers in eternal inflation are able to experience.
description: 15 PRD-style pages, 5 figures, expanded discussion of measures in Sec. II, added references
A mean-square bound for the lattice discrepancy of bodies of rotation with flat points on the boundary
Creators: name: Nowak, W. G.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Number Theory (math.NT)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 11P21

description: Let B denote a three-dimensional body of rotation, with respect to one coordinate axis, whose boundary is sufficiently smooth and of bounded nonzero Gaussian curvature throughout, except for the two boundary points on the axis of rotation, where the curvature may vanish. For a large real variable t, we are interested in the number A(t) of integer points in the linearly dilated body tB, in particular in the lattice discrepancy P(t) = A(t) - volume(tB). We are able to evaluate the contribution of the boundary points of curvature zero to P(t), with a remainder that is fairly small in mean-square.
description: 16 pages
Προσομοίωση επιχειρησιακών λειτουργιών"Επιχειρήσεις Παροχής Υπηρεσιών-Εφαρμογή στην Τράπεζα Πειραιώς":
Creators: name: Κεμετζής, Γεώργιος Βασιλείου
Publisher: name: Aristotle University of Thessaloniki
Year: 2010
Subjects: Μοντελοποίηση
Προσομοίωση διακριτών γεγονότων
Προσομοίωση τραπεζικών λειτουργιών
Τράπεζα Πειραιώς
Modeling
Discrete event simulation
Banking operations simulation
Piraeus Bank

description: Η εργασία αυτή ασχολείται με την μοντελοποίηση και την προσομοίωση (με το πακέτο προσομοίωσης Simul8) των επιχειρησιακών λειτουργιών ενός υποκαταστήματος της Τράπεζας Πειραιώς. Αρχικά μοντελοποιήθηκε και προσομοιώθηκε η υπάρχουσα κατάσταση της επιχείρησης, ενώ στη συνέχεια μοντελοποιήθηκαν και προσομοιώθηκαν τρία σενάρια κινδύνου. Τα σενάρια αυτά περιλαμβάνουν την ημέρα της καταβολής των συντάξεων, την απουσία ενός υπαλλήλου γραφείου και την απουσία ενός υπαλλήλου ταμείου. Τόσο όσον αφορά την υπάρχουσα κατάσταση, αλλά και τα σενάρια, εντοπίστηκαν παράγοντες που επηρεάζουν αρνητικά την απόδοση και προτάθηκαν βελτιωτικές λύσεις για κάθε περίπτωση. Τα αποτελέσματα των λύσεων πράγματι έδειξαν βελτίωση σε κάθε περίπτωση όλων των προβληματικών παραγόντων που εντοπίστηκαν, σημαντικότεροι από τους οποίους ήταν οι χρόνοι αναμονής στις ουρές και ο συνολικός χρόνος παραμονής στο σύστημα. Τέλος, τα αποτελέσματα της προσομοίωσης συμπεριλαμβάνουν μια αναφορά κόστους για κάθε περίπτωση, έτσι ώστε να υπολογιστεί το χρηματικό κόστος που αποτελεί το αντίτιμο της βελτίωσης που προσφέρουν οι λύσεις που προτάθηκαν.
description: This work deals with the modeling and simulation (in simulation software Simul8) of the banking processes of a Piraeus Bank branch. At first, the current state was modeled and simulated, while the next step was to model and simulate three “what-if” scenarios. The first scenario was about the day of old age pension payments, the second one was about the sudden absence of an office employee and the third scenario was about the sudden absence of a teller. Constraint factors were spotted and solutions were proposed to improve the quality of services for the current state, as well as for each of the scenarios examined. The results of the simulation for the proposed solutions showed improvement on all of the constraint factors, of which the most critical were the queuing times and the total time in system. Finally, the results of the simulation include a cost report, so the trade-off (in money) of the proposed changes can be calculated.
An analysis of protesting activity and trauma through mathematical and statistical models
Creators: name: Rodriguez, Nancy
name: White, David
Publisher: name: arXiv
Year: 2024
Subjects: subject: Applications (stat.AP)
subject: Analysis of PDEs (math.AP)
subject: Dynamical Systems (math.DS)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: The effect that different police protest management methods have on protesters' physical and mental trauma is still not well understood and is a matter of debate. In this paper, we take a two-pronged approach to gain insight into this issue. First, we perform statistical analysis on time series data of protests provided by ACLED and spanning the period of time from January 1, 2020, until March 13, 2021. We observe that the use of kinetic impact projectiles is associated with more protests in subsequent days and is also a better predictor of the number of deaths in subsequent deaths than the number of protests, concluding that the use of non-lethal weapons seems to have an inflammatory rather than suppressive effect on protests. Next, we provide a mathematical framework to model modern, but well-established psychological and sociological research on compliance theory and crowd dynamics. Our results show that understanding the heterogeneity of the crowd is key for protests that lead to a reduction of social tension and minimization of physical and mental trauma in protesters.
description: This paper was published in 2023
Η συμβολή των ενισχυτικών εκπαιδευτικών δομών στη σχολική σταδιοδρομία των μεταναστών μαθητών: από τη διακήρυξη στην εφαρμογή:
Creators: name: Χαραβιτσίδης, Παύλος Δημοσθένης
Publisher: name: Aristotle University of Thessaloniki
Year: 2010
Subjects: Τάξεις υποδοχής
Φροντιστηριακά τμήματα
Σχολικές εγκύκλιοι
Νομοθεσία
Αλλαδαποί και παλιννοστούντες μαθητές
Classes for foreign students
School prospectuses
Legislation
Emigrant and foreign students/pupils

description: Η παρούσα εργασία μελετά τη νομοθεσία που αφορά τους ενισχυτικούς εκπαιδευτικούς θεσμούς (Τάξεις Υποδοχής και Φροντιστηριακά Τμήματα) που απευθύνονται σε αλλοδαπούς και παλιννοστούντες μαθητές, αλλά προσπερνώντας την, παρακολουθεί και καταγράφει με λεπτομέρεια τις σχολικές εγκυκλίους με την ίδια θεματολογία που στάλθηκαν από το Υπουργείο Παιδείας, τις Διευθύνσεις και τα Γραφεία Εκπαίδευσης στα σχολεία της Πρωτοβάθμιας Εκπαίδευσης τη χρονική περίοδο 1989-2006. Μέσα από τη μελέτη τους επιχειρείται να ανιχνευτεί πώς η νομοθεσία που σχετίζεται με τη διαπολιτισμική εκπαίδευση μετατρέπεται σε σχολική πραγματικότητα, ποια σημεία από αυτήν γίνονται πράξη και ποια όχι, ποιες είναι οι στάσεις των στελεχών της εκπαίδευσης οι οποίοι είναι οι διαμεσολαβητές της μεταφοράς της νομοθεσίας αυτής στην πράξη. Ως μέθοδος έρευνας χρησιμοποιήθηκε η «ανάλυση περιεχομένου» των εγκυκλίων που επιλέχθηκαν οι οποίες, με βάση τη θεματολογία τους, κατατάσσονται και εξετάζονται σε τρεις θεματικούς άξονες: α. Αναγνώριση του δικαιώματος ένταξης των αλλοδαπών μαθητών στις ενισχυτικές εκπαιδευτικές δομές. β. Αναγνώριση του δικαιώματος διδασκαλίας της μητρικής γλώσσας των αλλοδαπών και παλιννοστούντων μαθητών. γ. Παρουσία του νομοθετικού και διοικητικού πλαισίου σε επίπεδο: α) δικαιωμάτων και β) παιδαγωγικής επάρκειας.
description: The present project is a research concerning the legislation of reinforcing educational institutions such as Classes for Foreign Students and Tutorial Classes, which refer to emigrant and foreign students and pupils. Over viewing this legislation, the research observes and records in every detail, the prospectuses for the reinforcing educational institutions, sent by the Ministry of Education, the Administration Offices of Education and the Educational Bureaus for Primary Schools during the period 1989 – 2006. Through the intensive study of those prospectuses, it is attempted to trace, how the legislation concerning the intercultural education, could become a reality in schools, which of its segments can be functional and which can not and what is the stasis of the officials of education, since they are the vehicles who will convey this legislation into action. As a research method it has been used the << content analysis>> of the specific prospectuses and based on their thesis can be categorized and viewed into three separate thematic axis: a. Recognition of the right to affiliate foreign students and pupils in the reinforcing educational structures. b. Recognition of the right of tutoring to the emigrant and foreign students/pupils their native language. c. Imposing a proper legislative and administrative line on the level of a) educational rights and b) academic efficiency.
The n-point functions for intersection numbers on moduli spaces of curves
Creators: name: Liu, Kefeng
name: Xu, Hao
Publisher: name: arXiv
Year: 2007
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: Using the celebrated Witten-Kontsevich theorem, we prove a recursive formula of the $n$-point functions for intersection numbers on moduli spaces of curves. It has been used to prove the Faber intersection number conjecture and motivated us to find some conjectural vanishing identities for Gromov-Witten invariants. The latter has been proved recently by X. Liu and R. Pandharipande. We also give a combinatorial interpretation of $n$-point functions in terms of summation over binary trees.
description: 22 pages
The AARTFAAC Cosmic Explorer: observations of the 21-cm power spectrum in the EDGES absorption trough
Creators: name: Gehlot, B. K.
name: Mertens, F. G.
name: Koopmans, L. V. E.
name: Offringa, A. R.
name: Shulevski, A.
name: Mevius, M.
name: Brentjens, M. A.
name: Kuiack, M.
name: Pandey, V. N.
name: Rowlinson, A.
name: Sardarabadi, A. M.
name: Vedantham, H. K.
name: Wijers, R. A. M. J.
name: Yatawatta, S.
name: Zaroubi, S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The 21-cm absorption feature reported by the EDGES collaboration is several times stronger than that predicted by traditional astrophysical models. If genuine, a deeper absorption may lead to stronger fluctuations on the 21-cm signal on degree scales (up to 1~Kelvin in rms), allowing these fluctuations to be detectable in nearly 50~times shorter integration times compared to previous predictions. We commenced the "AARTFAAC Cosmic Explorer" (ACE) program, that employs the AARTFAAC wide-field imager, to measure or set limits on the power spectrum of the 21-cm fluctuations in the redshift range $z = 17.9-18.6$ ($Δν= 72.36-75.09$~MHz) corresponding to the deep part of the EDGES absorption feature. Here, we present first results from two LST bins: 23.5-23.75h and 23.5-23.75h, each with 2~h of data, recorded in `semi drift-scan' mode. We demonstrate the application of the new ACE data-processing pipeline (adapted from the LOFAR-EoR pipeline) on the AARTFAAC data. We observe that noise estimates from the channel and time-differenced Stokes~$V$ visibilities agree with each other. After 2~h of integration and subtraction of bright foregrounds, we obtain $2σ$ upper limits on the 21-cm power spectrum of $Δ_{21}^2 < (8139~\textrm{mK})^2$ and $Δ_{21}^2 < (8549~\textrm{mK})^2$ at $k = 0.144~h\,\textrm{cMpc}^{-1}$ for the two LST bins. Incoherently averaging the noise bias-corrected power spectra for the two LST bins yields an upper limit of $Δ_{21}^2 < (7388~\textrm{mK})^2$ at $k = 0.144~h\,\textrm{cMpc}^{-1}$. These are the deepest upper limits thus far at these redshifts.
description: 16 pages, 10 figures, accepted for publication in MNRAS
Dynamic Scheduling for Stochastic Edge-Cloud Computing Environments using A3C learning and Residual Recurrent Neural Networks
Creators: name: Tuli, Shreshth
name: Ilager, Shashikant
name: Ramamohanarao, Kotagiri
name: Buyya, Rajkumar
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: The ubiquitous adoption of Internet-of-Things (IoT) based applications has resulted in the emergence of the Fog computing paradigm, which allows seamlessly harnessing both mobile-edge and cloud resources. Efficient scheduling of application tasks in such environments is challenging due to constrained resource capabilities, mobility factors in IoT, resource heterogeneity, network hierarchy, and stochastic behaviors. xisting heuristics and Reinforcement Learning based approaches lack generalizability and quick adaptability, thus failing to tackle this problem optimally. They are also unable to utilize the temporal workload patterns and are suitable only for centralized setups. However, Asynchronous-Advantage-Actor-Critic (A3C) learning is known to quickly adapt to dynamic scenarios with less data and Residual Recurrent Neural Network (R2N2) to quickly update model parameters. Thus, we propose an A3C based real-time scheduler for stochastic Edge-Cloud environments allowing decentralized learning, concurrently across multiple agents. We use the R2N2 architecture to capture a large number of host and task parameters together with temporal patterns to provide efficient scheduling decisions. The proposed model is adaptive and able to tune different hyper-parameters based on the application requirements. We explicate our choice of hyper-parameters through sensitivity analysis. The experiments conducted on real-world data set show a significant improvement in terms of energy consumption, response time, Service-Level-Agreement and running cost by 14.4%, 7.74%, 31.9%, and 4.64%, respectively when compared to the state-of-the-art algorithms.
description: Accepted in IEEE Transaction on Mobile Computing
Travellers’ preference for parking at the Vancouver International Airport
Creators: name: Romank, Heather
Publisher: name: University of British Columbia
Year: 2009

description: Market research is becoming an increasingly important part of an airport's operational strategies as airport managers try to increase customer service and reach operational goals. This research applies conjoint analysis to investigate customer preferences for parking facilities and services at a major Canadian airport. This research will define and determine the relative importance of a set of attributes which influence business travelers' parking choice at the Vancouver International Airport. In addition, market segments for parking services will be identified. Sawtooth Software's Adaptive Conjoint Analysis and Ci2 were used in this study. A questionnaire was administered to a 36 employees among three local companies selected for data collection. Employees of these three companies represented potential local business travelers. This study was limited to the investigation of a subset of traveler (i.e. business traveler) preferences for parking at the Vancouver International Airport. More complete analysis would have to replicate the data collection procedures and target different users under different conditions (i.e. time of day, time of year, duration of stay). Results of the conjoint analysis indicated that price and distance to the terminal building account about equally for the majority of business travelers parking preference ratings (approximately two-thirds). The provision of video camera security was also an important determinant of customer preference. The provision of electronic signage providing guidance to available parking spaces did not contribute significantly to customer preference. In addition, the provision of a parkade rather than a surface lot contributed little to customer preference. Market share estimates were calculated for YVR's proposed Parkade, Main and Economy parking lots. Estimates of market shares suggested that a majority of business travelers taking an overnight journey in August preferred to park in the YVR Parkade. Market share estimates were also calculated for various service alternatives in the parkade. Comparing these additional estimates with the base service option revealed the trade-offs that business travelers were likely to make. Results anticipated approximately a 60 percent market share for the proposed parkade service despite charging a higher price ($6 per day higher than the alternative parking lots). Market share estimates predicted that the provision of video camera security and electronic signage in the parkade was significant in enabling a higher price. The predicted market share falls substantially to 28 percent if security and signage are not provided. Results also suggested that more travelers were willing to pay extra for the provision of video camera security than electronic signage in the parkade.
title: Διαμόρφωση ολοκληρωμένου πλαισίου δεικών για την παρακολούθηση (monitoring) της εξέλιξης δικτύου οικισμών
titleType: AlternativeTitle
title: Conformation of an integrated indicator framework for the monitoring of residential systems evolution
titleType: AlternativeTitle
Creators: name: Karaiskos, Periklis I.
Publisher: name: National Technological University of Athens
Year: 2014
Subjects: Οικιστικό δίκτυο
Δείκτες
Αστική ανάπτυξη
Περιφερειακή ανάλυση
Χωρική ανάλυση
Residential systems
Indicator
Urban development
Regional analysis
Spatial analysis

description: 215 σ.
description: Στη προσπάθεια δημιουργίας μιας νέας οικιστικής πολιτικής οι δείκτες παρακολούθησης της εξέλιξης των οικιστικών συστημάτων έχουν βασικό ρόλο. Η κατάλληλη επιλογή τους επιτρέπει την συνεχή και ολοκληρωμένη παρακολούθηση της εξέλιξης των πόλεων και υποβοηθά στην δημιουργία αποτελεσματικών οικιστικών πολιτικών. Η διαμόρφωση όμως αυτής της αντίληψης πρέπει να αξιοποιεί την διεθνή εμπειρία αλλά θα πρέπει να είναι προσαρμοσμένη στην Ελληνική πραγματικότητα. Η δημιουργία ενός πλαισίου διαμόρφωσης δεικτών για την παρακολούθηση (monitoring) της εξέλιξης του οικιστικού δικτύου αποτελεί ένα πολύ σημαντικό παράγοντα στη διαμόρφωση τόσο της βιώσιμης ανάπτυξης όσο και της οικιστικής πολιτικής. Το αίτημα για περιβαλλοντικά βιώσιμη ανάπτυξη μέσα από την παρακολούθηση της εξέλιξης των οικιστικών δικτύων μπορεί να οδηγήσει σε συστηματική διερεύνηση μέσα από τη διαμόρφωση δεικτών παρακολούθησης και αξιολόγησης της εξέλιξης των χωρικών συστημάτων. Η δημιουργία τέτοιων δεικτών μπορεί να προκύψει σαν αποτέλεσμα του γεγονότος ότι οι κλασικοί οικονομικοί δείκτες δεν ανταποκρίνονται επαρκώς στις ανάγκες των αιτημάτων για βιώσιμη ανάπτυξη και οικιστική εξέλιξη.
description: In the effort to create a new residential policy, the monitoring indicators of residential system evolution have a key role. Proper selection allows the continuous and comprehensive monitoring of the evolution of cities and assists in the creation of effective residential policies. However, the international experience, adapted to Greek reality, should be used for the conformation of this perspective. The creation of a configuration indicators framework for the monitoring of residential systems evolution is a very important factor in the formation of both sustainable development and the residential policy. The demand for environmentally sustainable development through the monitoring of residential networks can lead to a systematic investigation through the conformation of monitoring indicators and the assessing of spatial systems evolution. The creation of such indicators may arise as a result of the fact that the classical economic indicators do not adequately meet the needs of demands for sustainable development and residential evolution.
Σχεδίαση και ανάπτυξη εκπαιδευτικού λογισμικού για τη διάγνωση και αντιμετώπιση μαθησιακών δυσκολιών. Εφαρμογή και αξιολόγηση σε παιδιά δημοτικού
Creators: name: Αρχοντή, Μαρία
Publisher: name: Aristotle University of Thessaloniki
Year: 2010
Subjects: Μαθησιακές δυσκολίες
Εκπαιδευτικό λογισμικό
Διάγνωση
Learning disorders
Educational software
Diagnosis

description: Αντικείμενο της παρούσας εργασίας είναι η διερεύνηση του τρόπου με τον οποίο μπορεί ένα εκπαιδευτικό λογισμικό να χρησιμοποιηθεί και να επιτύχει στην αντιμετώπιση μαθησιακών δυσκολιών μαθητών Δημοτικού. Συγκεκριμένα, περιγράφεται το λογισμικό «ΠΑΙΧΝΙΔΟΔΑΣΟΣ ΜΕ ΓΡΑΜΜΑΤΑ ΚΑΙ ΑΡΙΘΜΟΥΣ» που υλοποιήθηκε. Ακόμη, αναφέρεται η προσπάθεια να εντοπιστούν μέσα από το λογισμικό τυχόν μαθησιακές δυσκολίες και να δοθούν τρόποι αντιμετώπισης / εξάσκησης στα γνωστικά πεδία της Γλώσσας και των Μαθηματικών. Τέλος, εξετάζονται τα αποτελέσματα της εφαρμογής και της αξιολόγησής του σε μαθητές Δημοτικών σχολείων.
description: The purpose of this study is to explore the way an educational software can be used and succeed in treating learning disabilities in primary school children.Particularly, it describes newly implemented educational software, called “PAIXNIDODASOS”. In addition, it analyzes the effort that has been made to detect possible learning difficulties through the software and to provide ways of treating / practicing in the fields of Greek Language and Maths. Finally, it presents the results of the implementation of the software in primary schools.
Study on the Application and Evaluation of the Urban Agricultural building module UaAm in Compact Green Urbanism-Oriented Cities
Creators: name: Fujiyama, Mamiko
name: Chien, Szu-Cheng
name: Kobayashi, Hikaru
name: Soh, Chew Beng
name: Ishida, Toshikazu
Publisher: name: Singapore Institute of Technology
Year: 2024
Subjects: classificationCode: 309999
subject: Other agricultural, veterinary and food sciences not elsewhere classified

description: The current study focused on Singapore, one of the world’s most densely populated urban nations. We analyzed practical examples of urban farming as a regenerative urban space strategy in an advanced, mature city, using existing urban spaces. To convert under-used urban spaces to urban farming land to contribute to compact urban amenities, rather than only improving agricultural productivity, this study provides an overview of major initiatives in urban farming and related urban planning in Singapore. Additionally, we analyzed a case study of multi-story car parks in two strategic areas as potential sites for urban farming (Ang Mo Kio and Punggol), which were established in different eras. On the basis of the results, a demonstration testbed was developed for proposal-based validation of the optimal placement of urban farming units and environmental assessment indicators.
title: Συμβολή στην έρευνα των παραμέτρων άνεσης και ασφάλειας σε χώρους σταθμών Μετρό(το παράδειγμα της Αθήνας σε παραλληλισμό με επιλεκτική διεθνή εμπειρία)
titleType: AlternativeTitle
title: Contribution to research of comfort and safety parameters in Metro station areas (the Athens case in comparison with selected international experience)
titleType: AlternativeTitle
Creators: name: Mpatsos, Dimitrios V.
Publisher: name: National Technological University of Athens
Year: 2011
Subjects: Αττικό Μετρό
Παράμετροι σχεδιασμού
Συνολικό περιβάλλον σε σταθμό Μετρό
Αρχιτεκτονική των σταθμών Μετρό
Ασφάλεια σε σταθμούς Μετρό
Attiko Metro
Optical characteristics
Comfort enviromental
Safety enviromental
Underground station

description: 400 σ.
description: Ο σκοπός της παρούσας διατριβής είναι να καλύψει κενά της βιβλιογραφίας σχετικά με την έρευνα προσδιορισμού εκείνων των παραμέτρων που συνθέτουν και χαρακτηρίζουν το συνολικό περιβάλλον ενός Σταθμού Μετρό και συντελούν στην ποιότητα ζωής εργαζομένων και επιβατών στους παραπάνω χώρους. Η διατριβή εξετάζει παραμέτρους σχεδιασμού χώρων σε Σταθμούς του Μετρό της Αθήνας, συγκρίνοντας τα αποτελέσματα με αποτελέσματα άλλων Σταθμών του εξωτερικού, στο μέτρο που διατίθεται η σχετική πληροφόρηση. Η πρωτοτυπία της διατριβής έγκειται στην εισαγωγή και έρευνα νέων παραμέτρων (ποιότητα αέρα - επίπεδα ραδονίου), πέραν εκείνων που αναλύονται συνήθως κατά τη δημιουργική φάση του σχεδιασμού ενός Σταθμού Μετρό. Εν κατακλείδι γίνεται μια προσπάθεια οργάνωσης των αποτελεσμάτων της έρευνας για χρήση σε μελλοντικές προδιαγραφές, που ελπίζουμε να φανούν χρήσιμες σε μελέτες Σταθμών Μετρό, που στο πνεύμα της εποχής καλούνται εκ των πραγμάτων να εισάγουν βιοκλιματικούς παράγοντες στη σύνθεση του έργου τους.
description: The purpose of this dissertation is to fill in gaps in the bibliography concerning the research conducted in order to identify the parameters that form and characterize the entire environment of a Metro Station and affect the quality of life of Metro employees and passengers circulating in the aforementioned areas. This dissertation examines parameters related to the design of Athens Metro systems and compares the results of this design parameters with the results of surveys conducted in other stations abroad, to the extent that the relevant information is available. The originality of this dissertation consist in the introduction and research of new parameters (as regard air quality-radon levels), beyond those usually analyzed at the creative design phase of a Metro station. In conclusion an effort is made to οrganize the results of the aforementioned research to be used in future specifications that would hopefully be useful to the designer of underground Metro stations who in line with the current environmental requirements, are actually called upon to introduce by bioclimatic factors in their work
Models for Gamma-Ray Bursts and Diverse Transients
Creators: name: Woosley, S. E.
name: Zhang, Weiqun
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The observational diversity of ``gamma-ray bursts'' (GRBs) has been increasing, and the natural inclination is a proliferation of models. We explore the possibility that at least part of this diversity is a consequence of a single basic model for the central engine operating in a massive star of variable mass, differential rotation rate, and mass loss rate. Whatever that central engine may be - and here the collapsar is used as a reference point - it must be capable of generating both a narrowly collimated, highly relativistic jet to make the GRB, and a wide angle, sub-relativistic outflow responsible for exploding the star and making the supernova bright. To some extent, the two components may vary independently, so it is possible to produce a variety of jet energies and supernova luminosities. We explore, in particular, the production of low energy bursts and find a lower limit, $\sim10^{48}$ erg s$^{-1}$ to the power required for a jet to escape a massive star before that star either explodes or is accreted. Lower energy bursts and and ``suffocated'' bursts may be particularly prevalent when the metallicity is high, i.e., in the modern universe at low redshift.
description: 12 pages, Royal Society meeting on GRBs, to appear in Philosophical Transactions A
Gravitation radiation from the collision of particles
Creators: name: Misyura, M. A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: At the present moment, there is an unresolved problem in the physics of cosmic rays. The problem concerns the origin of the ultrahigh energy cosmic rays. One of the possible mechanisms of the particle's birth with such energy is bound to the processes occurring in the active nuclei of the galaxies. In this paper, we have examined a collision of superheavy particles. Using the Weinberg formalism, we have estimated gravitational radiation emitted during the collision in the first approximation. It was shown that, for a certain collision time, the energy lost by the ultrarelativistic particle is less than the value of the energy of the mass center of the collision and the mass of the colliding particles.
description: 5 pages
Ανάλυση των στοιχείων από τις μετρήσεις των σωματικών κυττάρων στο γάλα των αγελάδων γαλακτοπαραγωγής.:
Creators: name: Πιλαφίδης, Οδυσσέας Αναστασίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2010
Subjects: Σωματικά κύτταρα
Γάλα
Μαστίτιδα
Somatic cell count
Milk
Mastitis

description: Σκοπός της έρευνας ήταν να μελετηθούν οι επιδράσεις διαφόρων παραγόντων στον αριθμό των σωματικών κυττάρων στο γάλα αγελάδων της φυλής Χολστάιν σε εκμεταλλεύσεις της Μακεδονίας και της Θράκης. Οι παράγοντες που μελετήθηκαν ήταν η μονάδα, ο αριθμός γαλακτικής περιόδου, το στάδιο της γαλακτικής περιόδου, ο μήνας ελέγχου καθώς και η αλληλεπίδραση αριθμού γαλακτικής περιόδου και σταδίου γαλακτικής περιόδου. Επίσης μελετήθηκαν οι επιδράσεις της μονάδας, του αριθμού της γαλακτικής περιόδου, του έτους και του μήνα του τοκετού στη γαλ/γή των 305 ημερών.Τα στοιχεία της εργασίας προέρχονται από 34 μονάδες της Ένωσης Φυλής Χολστάϊν Ελλάδας στις οποίες εφαρμόζεται πρόγραμμα ελέγχου των αποδόσεων. Χρησιμοποιήθηκαν 28.136 έλεγχοι από 4.613 αγελάδες. Η χρονική περίοδος των ελέγχων ήταν από τις 4-1 -2007 μέχρι και τις 14-3-2008. Όσο αφορά τον αριθμό των σωματικών κυττάρων και οι 5 παράγοντες (μονάδα, αριθμός γαλακτικής περιόδου, στάδιο γαλ/γής, μήνας ελέγχου, γαλακτική περίοδος * στάδιο γαλ/γής) βρέθηκε ότι ασκούν στατιστικά σημαντική επίδραση σε αυτόν. Συγκεκριμένα: α) οι μονάδες παρουσίαζαν μεγάλες διαφορές μεταξύ τους ως προς τον αριθμό των σωματικών κυττάρων, β) όσο αυξάνεται ο αριθμός της γαλακτικής περιόδου αυξάνεται και ο αριθμός των σωματικών κυττάρων, γ) η καμπύλη των σωματικών κυττάρων βρέθηκε αντίστροφη αυτής της γαλ/γής και δ) ο Σεπτέμβριος παρουσίαζε το μεγαλύτερο αριθμό σωματικών κυττάρων ενώ το μικρότερο ο Απρίλιος. Σχετικά με τη γαλακτοπαραγωγή 305 ημερών βρέθηκε ότι και οι 4 παράγοντες (μονάδα, αριθμός γαλακτικής περιόδου, έτος τοκετού, μήνας τοκετού) ασκούν στατιστικά σημαντική επίδραση σε αυτήν. Συγκεκριμένα η γαλ/γή 305 ημερών αυξάνει μέχρι τη 3η γαλακτική περίοδο και από την 4η σταδιακά μειώνεται και η γαλακτική περίοδος δεν αλληλεπιδρά με το μήνα τοκετού.
description: The aim of the present thesis was the study of the influences of the farm, the lactation number, the stage of lactation, the month of the test and of the interaction between the lactation number and the stage of lactation on the somatic cell count in the milk of dairy cows. The data of this study came from 34 dairy farms of members of the Holstein Association of Greece. 28.136 tests of 4.613 cows were used. The time period of the data collection was from 4-1 -2007 to 14-3-2008. According to the results of statistical analysis, all the factors were found to have significant influence. Also the influences of the farm, the lactation number, the year and the month of calving on the 305 days lactation were studied. According to the results of statistical analysis, all the factors were found to have significant influence
Physics of Non-Universal Larson's Relation
Creators: name: Cen, Renyue
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: From a new perspective, we re-examine self-gravity and turbulence jointly, in hopes of understanding the physical basis for one of the most important empirical relations governing clouds in the interstellar medium (ISM), the Larson's Relation relating velocity dispersion ($σ_R$) to cloud size ($R$). We report on two key new findings. First, the correct form of the Larson's Relation is $σ_R=α_v^{1/5}σ_{pc}(R/1pc)^{3/5}$, where $α_v$ is the virial parameter of clouds and $σ_{pc}$ is the strength of the turbulence, if the turbulence has the Kolmogorov spectrum. Second, the amplitude of the Larson's Relation, $σ_{pc}$, is not universal, differing by a factor of about two between clouds on the Galactic disk and those at the Galactic center, evidenced by observational data.
description: 12 pages, 2 figures, accepted to ApJ Letters
СОВРЕМЕННЫЕ ВЗГЛЯДЫ  НА РАЗВИТИЕ НАРУЖНОГО ГЕНИТАЛЬНОГО ЭНДОМЕТРИОЗА У ЖЕНЩИН (ЛИТЕРАТУРНЫЙ ОБЗОР)
Creators: name: Рахмонова, Шахзодахон
Publisher: name: Zenodo
Year: 2024

description: Эндометриоз является частой причиной тазовых болей и поражает до 10% женщин репродуктивного возраста. Эутопические клетки эндометрия у женщин с эндометриозом не могут подавлять гены, необходимые для децидуализации, такие как участвующие в регуляции клеточного цикла, что приводит к неудержимой пролиферации. Имеется несколько причин резистентности эндометрия к прогестерону, включая врожденное при котором внутриутробная среда делает младенцев восприимчивыми к неонатальным маточным кровотечениям и эндометриозу.
Sensor Scheduling for Optimal Observability Using Estimation Entropy
Creators: name: Rezaeian, Mohammad
Publisher: name: arXiv
Year: 2006
Subjects: subject: Information Theory (cs.IT)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences
subject: I.2.8; G.3; H.1.1

description: We consider sensor scheduling as the optimal observability problem for partially observable Markov decision processes (POMDP). This model fits to the cases where a Markov process is observed by a single sensor which needs to be dynamically adjusted or by a set of sensors which are selected one at a time in a way that maximizes the information acquisition from the process. Similar to conventional POMDP problems, in this model the control action is based on all past measurements; however here this action is not for the control of state process, which is autonomous, but it is for influencing the measurement of that process. This POMDP is a controlled version of the hidden Markov process, and we show that its optimal observability problem can be formulated as an average cost Markov decision process (MDP) scheduling problem. In this problem, a policy is a rule for selecting sensors or adjusting the measuring device based on the measurement history. Given a policy, we can evaluate the estimation entropy for the joint state-measurement processes which inversely measures the observability of state process for that policy. Considering estimation entropy as the cost of a policy, we show that the problem of finding optimal policy is equivalent to an average cost MDP scheduling problem where the cost function is the entropy function over the belief space. This allows the application of the policy iteration algorithm for finding the policy achieving minimum estimation entropy, thus optimum observability.
description: 5 pages, submitted to 2007 IEEE PerCom/PerSeNS conference