cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Το Σχέδιο Μάρσαλ και η Μεταπολεμική Δυτική Ευρώπη
Creators: name: Ζαρίφης, Μιχαήλ Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: Σχέδιο Marshall
Σχέδιο Schuman
Μεταπολεμική Δυτική Ευρώπη
The Marshall Plan
The Schuman Plan
The Postwar Western Europe

description: Σκοπός της διατριβής είναι να καταδειχθεί ο τρόπος με τον οποίο η Γαλλία αντιλαμβάνεται και διαχειρίζεται το ζήτημα της ανασυγκρότησης της Δυτικής Ευρώπης κατά τη μεταπολεμική περίοδο από το 1947 έως το 1952. Στη συνέχεια παρουσιάζονται οι διπλωματικές ζυμώσεις που λαμβάνουν χώρα αυτή την περίοδο ώστε να ικανοποιηθούν οι όροι που θέτει το Σχέδιο Marshall. Επίσης, αναλύεται και η γαλλική απάντηση στην απαίτηση των Η.Π.Α. για ανασυγκρότηση της βαριάς βιομηχανίας της Δυτικής Γερμανίας μέσω του Σχεδίου Schuman. Δεδομένου ότι οι τάσεις που προσβλέπουν στον αμερικανικό παράγοντα και την παρέμβασή του δυναμώνουν, το Παρίσι από «μέρος του προβλήματος» γίνεται «μέρος της λύσης»
description: The aim of the dissertation is to illustrate the way in which France perceives and manages the reconstruction of Western Europe in the post-war period from 1947 to 1952. Then, the diplomatic fermentations that take place during this period are demonstrated so that the terms of the Marshall Plan can be fulfilled. Furthermore, is analyzed the Schuman Plan as the French response to the US requirement for reconstructing the heavy industry of West Germany. Since the trends that are appealing to the American factor and its intervention are strengthening, Paris from "part of the problem" becomes "part of the solution"
Eigenfunction Expansions of Functions Describing Systems with Symmetries
Creators: name: Kachuryk, Ivan
name: Klimyk, Anatoliy
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: Classical Analysis and ODEs (math.CA)
subject: Representation Theory (math.RT)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Physical systems with symmetries are described by functions containing kinematical and dynamical parts. We consider the case when kinematical symmetries are described by a noncompact semisimple real Lie group $G$. Then separation of kinematical parts in the functions is fulfilled by means of harmonic analysis related to the group $G$. This separation depends on choice of a coordinate system on the space where a physical system exists. In the paper we review how coordinate systems can be chosen and how the corresponding harmonic analysis can be done. In the first part we consider in detail the case when $G$ is the de Sitter group $SO_0(1,4)$. In the second part we show how the corresponding theory can be developed for any noncompact semisimple real Lie group.
description: Published in SIGMA (Symmetry, Integrability and Geometry: Methods and Applications) at http://www.emis.de/journals/SIGMA/
Second-order interoperability in the datafication of public health
Creators: name: Stojanov, Martin
Publisher: name: Zenodo
Year: 2019

description: With internet use becoming an integral part of many people’s everyday lives, using the internet to obtain health information and engage in self-care is by now an established practice (Nettleton, Burrows & O’Malley 2005). Searching for health information online produces a data trace that consists of search terms and information on their distribution over time, which can be stored in the user’s web browser as well as in the search engine’s databases. Health-information seeking online and other online activities produce data traces of our actions, in a process that can be referred to as datafication (van Dijck 2014). This continually produces updating data sets, which can then be repurposed in different contexts (Newell & Marabelli 2015). Within the realm of public health, datafication is being adopted in syndromic surveillance – the practice of monitoring population health in order to formulate appropriate public health responses. Infodemiology exemplifies how web search traces, which often consist of search terms related to symptoms, are being used to identify a potential outbreak that could require a public health intervention (Eysenbach 2006).
Persistence of a pinch in a pipe
Creators: name: Mahadevan, L.
name: Vaziri, A.
name: Das, Moumita
Publisher: name: arXiv
Year: 2006
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The response of low-dimensional solid objects combines geometry and physics in unusual ways, exemplified in structures of great utility such as a thin-walled tube that is ubiquitous in nature and technology. Here we provide a particularly surprising consequence of this confluence of geometry and physics in tubular structures: the anomalously large persistence of a localized pinch in an elastic pipe whose effect decays very slowly as an oscillatory exponential with a persistence length that diverges as the thickness of the tube vanishes, which we confirm experimentally. The result is more a consequence of geometry than material properties, and is thus equally applicable to carbon nanotubes as it is to oil pipelines.
description: 6 pages, 3 figures
Plasmonic atoms and plasmonic molecules
Creators: name: Klimov, V. V.
name: Guzatov, D. V.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Optics (physics.optics)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The proposed paradigm of plasmonic atoms and plasmonic molecules allows one to describe and predict the strongly localized plasmonic oscillations in the clusters of nanoparticles and some other nanostructures in uniform way. Strongly localized plasmonic molecules near the contacting surfaces might become the fundamental elements (by analogy with Lego bricks) for a construction of fully integrated opto-electronic nanodevices of any complexity and scale of integration.
description: 30 pages, 16 figures
Additional file 4 of Prevalence and predictive factors of complementary medicine use during the first wave of the COVID-19 pandemic of 2020 in the Netherlands
Creators: name: Mulder, Louise T. C.
name: Busch, Martine
name: Kristoffersen, Agnete E.
name: Hök Nordberg, Johanna
name: van der Werf, Esther T.
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: Developmental Biology
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 4: Table 4. Use of self-help techniques with corresponding reasons, perceived effectiveness and side effects.
Induced gravity on intersecting brane-worlds Part II: Cosmology
Creators: name: Corradini, Olindo
name: Koyama, Kazuya
name: Tasinato, Gianmassimo
Publisher: name: arXiv
Year: 2008
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: We explore cosmology of intersecting braneworlds with induced gravity on the branes. We find the cosmological equations that control the evolution of a moving codimension one brane and a codimension two brane that sits at the intersection. We study the Friedmann equation at the intersection, finding new contributions from the six dimensional bulk. These higher dimensional contributions allow us to find new examples of self-accelerating configurations for the codimension two brane at the intersection and we discuss their features.
description: 21 pages, some mistakes in the identification of the higher codimensional singular structure corrected. Main results unchanged
Decisions made by AI versus transparency: Who wins in healthcare?
Creators: name: Kiseleva, Anastasiya
Publisher: name: Zenodo
Year: 2019

description: Artificial intelligence (“AI”), fuelled by the increasing availability of healthcare data and rapid progress in analytics techniques, is bringing a paradigm shift to healthcare. “AI is getting increasingly sophisticated at doing what humans do but more efficiently, more quickly and at a lower cost.” By analysing data, AI can detect anomalies, make predictions, do real-time tracking, find correlations and thus make better and faster deci- sions. Due to constant self-learning and self-correcting mechanisms, AI provides greater accuracy.3 Thus, AI systems can reduce the diagnostic and therapeutic errors that are inevitable in human clinical practice. Analysing huge pools of data enables AI to find unexpected correlations and insights, which can be used to discover new therapeutic techniques, find causes of diseases and identify ways to prevent them. The benefits of AI use in healthcare are numerous and prominent.
On the localization of the magnetic and the velocity fields in the equations of magnetohydrodynamics
Creators: name: Brandolese, Lorenzo
name: Vigneron, François
Publisher: name: arXiv
Year: 2006
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 76W05; 35Q30; 76D05

description: We study the behavior at infinity, with respect to the space variable, of solutions to the magnetohydrodynamics equations in ${\bf R}^d$. We prove that if the initial magnetic field decays sufficiently fast, then the plasma flow behaves as a solution of the free nonstationnary Navier--Stokes equations when $|x|\to +\infty$, and that the magnetic field will govern the decay of the plasma, if it is poorly localized at the beginning of the evolution. Our main tools are boundedness criteria for convolution operators in weighted spaces.
description: Proceedings of the Royal Society of Edinburgh. Section A. Mathematics (to appear) (0000) --xx--
Additional file 5 of Prevalence and predictive factors of complementary medicine use during the first wave of the COVID-19 pandemic of 2020 in the Netherlands
Creators: name: Mulder, Louise T. C.
name: Busch, Martine
name: Kristoffersen, Agnete E.
name: Hök Nordberg, Johanna
name: van der Werf, Esther T.
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: Developmental Biology
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 5: Table 5. Univariate and multivariate logistic regression analyses with significant associated factors and final models for total CM use, CM provider consultations, use of self-management strategies and use of self-help techniques in the past three months (n =1004).
Exact coherent states of a noninteracting Fermi gas in a harmonic trap
Creators: name: Song, Dae-Yup
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Exact and closed-form expressions of the particle density, the kinetic energy density, the probability current density, and the momentum distribution are derived for a coherent state of a noninteracting Fermi gas, while such a state can be obtained from the ground state in a $d$-dimensional isotropic harmonic trap by modulating the trap frequency and shifting the trap center. Conservation laws for the relations of the densities are also given. The profile of the momentum distribution turns out to be identical in shape with that of the particle density, however, %as an observable manifestation of the uncertainty principle, the dispersion of the distribution increases (decreases) when that of the particle density is decreased (increased). The expressions are also applicable for a sudden and total opening of the trap, and it is shown that, after the opening, the gas has a stationary momentum distribution whose dispersion could be arbitrarily large or small.
Additional file 1 of Minimising young children’s anxiety through schools (MY-CATS): protocol for a cluster randomised controlled trial to evaluate the effectiveness and cost-effectiveness of an online parent-led intervention compared with usual school practice for young children identified as at risk for anxiety disorders
Creators: name: Reardon, Tessa
name: Dodd, Helen
name: Hill, Claire
name: Jasper, Bec
name: Lawrence, Peter J.
name: Morgan, Fran
name: Rapee, Ronald M.
name: Ukoumunne, Obioha C.
name: Violato, Mara
name: Davey, Emily
name: Halliday, Gemma
name: Jones, Benjamin
name: Martineau, Lindsey
name: McCall, Amy
name: Niekamp, Natascha
name: Placzek, Anna
name: Potts, Ruth
name: Weisser, Tamatha
name: Creswell, Cathy
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Neuroscience
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1. SPIRIT Checklist for Trials
Αντιλήψεις και προσδοκίες μαθητών δευτεροβάθμιας εκπαίδευσης για την αξιοποίηση των μέσων κοινωνικής δικτύωσης στην εκπαιδευτική διαδικασία
Creators: name: Δημάδη, Παναγιώτα Κωνσταντίνου
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: Μαθητές δευτεροβάθμιας εκπαίδευσης
Μέσα κοινωνικής δικτύωσης
Εκπαιδευτική διαδικασία
Secondary students
Social media
Teaching process

description: Σκοπός της παρούσας διατριβής ήταν να μελετηθούν οι αντιλήψεις και τυχόν προσδοκίες των μαθητών και των μαθητριών της Δευτεροβάθμιας Εκπαίδευσης αναφορικά με την αξιοποίηση των μέσων κοινωνικής δικτύωσης κατά την εκπαιδευτική διαδικασία. Εξετάσαμε τις βασικές έννοιες γύρω από τις ΤΠΕ στην εκπαίδευση, την ηλεκτρονική μάθηση και τα κοινωνικά δίκτυα. Επιπλέον, δόθηκε ιδιαίτερη προσοχή στην εισχώρηση αλλά και την χρήση των μέσων κοινωνικής δικτύωσης στη σχολική τάξη αλλά και στα αποτελέσματα που αυτή επιφέρει. Καταληκτικά, κατασκευάστηκε εξειδικευμένο ερωτηματολόγιο, ώστε να διαπιστώσουμε το βαθμό χρήσης από μεριάς των μαθητών των μέσων κοινωνικής δικτύωσης στην καθημερινότητά τους, αλλά και πως θα ήθελαν να τα αξιοποιήσουν στην καθημερινή διδασκαλία
description: The aim of the present thesis was the study of ideas and possible expectations of secondary students about the development of social media in the teaching process. Then, we presented some basic connotations related to the Information and Communication Technologies in education, the e-learning and the social networks. Furthermore, it was also vital that we study the immersion and the use of social media in the classroom and its results. Finally, we create a specific questionnaire, in order to see how much the students use the social networks in their everyday lives, and the way they would like to develop them in the everyday teaching process
Intermittent jet activity in the radio galaxy 4C29.30?
Creators: name: Jamrozy, M.
name: Konar, C.
name: Saikia, D. J.
name: Stawarz, L.
name: Mack, K. -H.
name: Siemiginowska, A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present radio observations at frequencies ranging from 240 to 8460 MHz of the radio galaxy 4C29.30 (J0840+2949) using the Giant Metrewave Radio Telescope (GMRT), the Very Large Array (VLA) and the Effelsberg telescope. We report the existence of weak extended emission with an angular size of $\sim$520 arcsec (639 kpc) within which a compact edge-brightened double-lobed source with a size of 29 arcsec (36 kpc) is embedded. We determine the spectrum of the inner double from 240 to 8460 MHz and show that it has a single power-law spectrum with a spectral index of $\sim$0.8. Its spectral age is estimated to be $\lapp$33 Myr. The extended diffuse emission has a steep spectrum with a spectral index of $\sim$1.3 and a break frequency $\lapp$240 MHz. The spectral age is $\gapp$200 Myr, suggesting that the extended diffuse emission is due to an earlier cycle of activity. We reanalyse archival x-ray data from Chandra and suggest that the x-ray emission from the hotspots consists of a mixture of nonthermal and thermal components, the latter being possibly due to gas which is shock heated by the jets from the host galaxy.
description: 14 pages, 11 figures, accepted for publication in MNRAS
La nozione di Analiticità e di conoscenza A Priori
Creators: name: Bradascio, Maria Teresa
Publisher: name: Rivista Italiana di Filosofia Analitica Junior
Year: 2015

description: Le nozioni di analiticità e di conoscenza a priori continuano ad essere impiegate nella filosofia contemporanea nonostante siano state oggetto di critiche e dibattiti per dimostrarne l’inutilità. Le domande alle quali si è cercato – e si cerca tuttora – di dare una risposta sono: quali tipi di proposizioni possono essere giustificate e conosciute a priori? Che rapporto c’è tra l’analiticità e l’a priori? Il mio intento è offrire un’analisi della nozione di analiticità presente in Frege e in Quine utilizzando come riferimento, rispettivamente, “I fondamenti dell’aritmetica” (1884) e l’articolo “Due Dogmi dell’Empirismo” (1953). Nell’opera di Frege si trova una prima riformulazione della coppia di nozioni ereditate dalla tradizione kantiana e leibniziana: per Leibniz una verità di ragione, sviluppando semplicemente il contenuto di una proposizione che già conosciamo, non amplia le nostre conoscenze, e dunque è analitica; mentre una verità di fatto amplia le nostre conoscenze, aggiungendo qualcosa che non avremmo potuto scoprire contemplando solamente i concetti e i loro rapporti logici. Le proposizioni logiche, aritmetiche e certe verità concettuali – quelle ottenute mediante definizione nominale – sono considerate proposizioni analitiche. Per Kant, invece, sia le proposizioni aritmetiche sia quelle geometriche ampliano la nostra conoscenza e sono sintetiche. L’obiettivo di Frege è mostrare l’errore della concezione kantiana dell’analiticità: l’incremento conoscitivo ottenibile dalle proposizioni aritmetiche non è in opposizione al loro carattere analitico. Egli, infatti, legando il carattere analitico o sintetico di un enunciato al tipo di giustificazione che possiamo portare a sostegno della sua asserzione, non definisce l’analiticità come una caratteristica evidente del significato di un enunciato. Nel caso degli enunciati dell’aritmetica la loro giustificazione consiste nella loro derivabilità formale da un numero finito di assiomi e di definizioni di carattere logico. Quine, al contrario, fortemente influenzato dagli empiristi logici – che avevano trasformato una questione epistemologica in una domanda sul significato – criticherà la tradizionale distinzione per offrire una nuova concezione del linguaggio in sintonia con un empirismo senza dogmi. Nella prima parte del paper analizzo la posizione di Frege; nella seconda parte – riprendendo la tesi di Boghossian – illustro in che modo sia possibile collegare la posizione di Quine con l’analiticità di Frege.
description: Rivista Italiana di Filosofia Analitica Junior, Vol 6, No 1 (2015)
Αποδοχή και κατανόηση από τους μαθητές χωρίς αναπηρία των δυσκολιών που αντιμετωπίζουν οι συμμαθητές τους με Ειδικές Εκπαιδευτικές Ανάγκες, κατά τη διάρκεια του παιχνιδιού στο σχολείο
Creators: name: Δήμας, Αναστάσιος Σωκράτους
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: θεωρία επαφής
κανόνες παιχνιδιού
αναπηρία
contact theory
rules of play
disability

description: Το παιχνίδι αποτελεί μια ευχάριστη δραστηριότητα που βοηθάει τους μαθητές να καλλιεργήσουν κοινωνικές δεξιότητες όπως είναι η συνεργασία, η ενσυναίσθηση και η αποδοχή της διαφορετικότητας. Ωστόσο, μαθητές με αναπηρία ή ΕΕΑ, συχνά, αποκλείονται από τις δραστηριότητες παιχνιδιού επειδή αντιμετωπίζουν δυσκολίες στην τήρηση και προσαρμογή διαφορετικών κανόνων. Σκοπός της παρούσας έρευνας ήταν η αξιολόγηση της αποδοχής και της κατανόησης από τους μαθητές χωρίς αναπηρία, των δυσκολιών που αντιμετωπίζουν οι μαθητές με αναπηρία ή ΕΕΑ στο παιχνίδι. Οι συμμετέχοντες ήταν 32 μαθητές, ηλικίας 6-7 ετών χωρισμένοι σε 2 ομάδες. Η ομάδα παρέμβασης παρακολούθησε ένα πρόγραμμα που περιλάμβανε αφήγηση ιστοριών σχετικά με τη διαφορετικότητα και την αναπηρία και παιχνίδια με προσαρμοσμένους κανόνες. Το πρόγραμμα διήρκησε 14 εβδομάδες και είχε συχνότητα 3 φορές εβδομαδιαίως. Ενώ η ομάδα ελέγχου ακολούθησε το τυπικό πρόγραμμα του σχολείου. Η αξιολόγηση πραγματοποιήθηκε με τη χρήση ερωτηματολογίων. Από τα αποτελέσματα της έρευνας φάνηκε ότι υπήρξε στατιστικά σημαντική επίδραση σε όλες τις μεταβλητές που αξιολογήθηκαν μόνο για την ομάδα παρέμβασης. Συμπερασματικά, διαπιστώνεται ότι ένα βιωματικό εκπαιδευτικό πρόγραμμα που συνδυάζει την αφήγηση ιστοριών και την προσαρμογή κανόνων παιχνιδιού μπορεί να συμβάλει ουσιαστικά στην κατανόηση και την αποδοχή της αναπηρίας από τα μικρά παιδιά
description: Play is a pleasant activity that helps students cultivate social skills such as collaboration, empathy and acceptance of diversity. However, students with disabilities or SENs are often excluded from activities because they have difficulties in complying with and adapting different rules. The purpose of this research was to evaluate at which point students without disabilities accept and understand the difficulties faced by students with disabilities or SENs during play. 32 students, aged 6-7 years divided into 2 groups, took place at the research. The intervention team attended a program that included storytelling about diversity and disability and adjusted rules during play. While the control team followed the usual school program. The intervention lasted 14 weeks and had a frequency of 3 times a week. The evaluation was carried out using questionnaires. The results of the survey showed that there was a statistically significant effect on all the variables assessed for the intervention group. In conclusion, an experiential educational program combining storytelling and adaptation of rules can substantially contribute to the understanding and acceptance of disability by young children
Additional file 3 of Eye acupuncture for pain conditions: a scoping review of clinical studies
Creators: name: Chi, Yuan
name: Barth, Jürgen
name: Wang, Mei
name: Robinson, Nicola
name: Li, Zan-Hua
name: Liu, Jian-Ping
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Developmental Biology
subject: Cancer
subject: Science Policy

description: Additional file 3.
Ανάδειξη αρχαιολογικού χώρου σε γειτoνίαση με σχολική αυλή
Creators: name: Παγανιά, Βερόνικα Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: subject: Αρχιτεκτονική
subject: Μουσειολογία
subject: Εκπαίδευση
subject: Architecture
subject: FOS: Civil engineering
subject: Museology
subject: Education

description: Αντικείμενο της παρούσας μελέτης είναι ο μουσειολογικός και αρχιτεκτονικός σχεδιασμός ανάδειξης των αρχαιολογικών ευρημάτων που βρίσκονται στον αύλειο χώρο του 44ου Δημοτικού Σχολείου Θεσσαλονίκης. Επιπλέον, η μελέτη αφορά την αποκατάσταση του προαύλιου χώρου του σχολείου και την σύνδεση του αρχαιολογικού χώρου με την εκπαιδευτική διαδικασία μέσα από τον σχεδιασμό μουσειοπαιδαγωγικών παιχνιδιών και δραστηριοτήτων για την σχολική αυλή, που σχετίζονται με τον αρχαιολογικό χώρο. Ακόμη, η μελέτη ασχολείται με την επίλυση της προσβασιμότητας στον αρχαιολογικό χώρο, αφενός από τους πολίτες, ως επισκέπτες του χώρου, και αφετέρου από τους μαθητές του σχολείου, ως χρήστες της αυλής. Η μελέτη, σε πρώτη φάση, επικεντρώνεται στον εντοπισμό και την καταγραφή των “νοηματικών” δεδομένων, που θα οδηγήσουν στον νοηματικό μουσειολογικό σχεδιασμό. Αρχικά, παρατίθεται η αρχαιολογική τεκμηρίωση των ευρημάτων, όπως αυτή προκύπτει από τον υπεύθυνο για την σωστική ανασκαφή αρχαιολόγο. Σε δεύτερη φάση, γίνεται η ανάλυση των χωρικών δεδομένων, που καθορίζουν τους στόχους και τους περιορισμούς του αρχιτεκτονικού σχεδιασμού. Στην συνέχεια, συνδέονται οι χωρικοί με τους νοηματικούς στόχους, ώστε να παραχθεί η κεντρική αρχιτεκτονική ιδέα. Τέλος, παρατίθενται τα αποτελέσματα του συνολικού αρχιτεκτονικού σχεδιασμού, καθώς και ορισμένες λεπτομέρειες που παρουσιάζουν στοχευμένα την επίλυση επιμέρους περιοχών
description: The subject of this study is the museological and architectural design of the archeological finds found in the courtyard of the 44th Primary School of Thessaloniki. In addition, the study concerns the rehabilitation of the courtyard of the school and the connection of the archaeological site with the educational process through the design of museological games and activities for the schoolyard, related to the archaeological site. Moreover, the study deals with the solution of the accessibility of the archaeological site, on the one hand, from the citizens, as visitors to the space, and on the other, from the students of the school, as users of the yard. The study, in the first phase, focuses on identifying and recording the "concept" data that will lead to the conceptual museological design. Initially, the archaeological documentation of the finds, as shown by the archaeologist responsible for the rescue excavation, is listed. In a second phase, the spatial data are analyzed, defining the architectural design objectives and constraints. Then, the spatial goals are connected with the conceptual goals, in order to produce the central architectural idea. Finally, the results of the overall architectural design are presented, as well as some details that are targeted to solving individual areas
description: Σε συνεργασία με το Παιδαγωγικό Τμήμα Δημοτικής Εκπαίδευσης (Πανεπιστήμιο Δυτικής Μακεδονίας)
ENHANCED VEHICULAR CLOUD FRAMEWORK FOR REAL-TIME TRACKING AND MANAGEMENT IN SMART TRANSPORTATION SYSTEMS
Creators: name: Dr. R. RUHIN KOUSER
name: R C RAVINDRANATH
Publisher: name: Zenodo
Year: 2025
Subjects: Vehicular Cloud, DSRC, Public Transportation System, Smart City, Vehicle Tracking.

description: Abstract

“The development of vehicular cloud computing holds the potential to revolutionize intelligent transportation systems in smart cities. Major applications include accident reporting/prevention, parking services, and traffic tracking. This paper proposes an intelligent public transportation system leveraging vehicular cloud technology. Unlike existing systems reliant on GPS for vehicle tracking, our approach employs Dedicated Short-Range Communication (DSRC) devices to access vehicle locations. We present a smart transportation system integrating DSRC and vehicular cloud, designed to offer users real-time availability and running information about vehicles. Experimental results demonstrate that our proposed model, utilizing DSRC for tracking, yields more accurate outcomes compared to traditional GPS-based methods. The system architecture comprises vehicles, stations, sensors, roadside units (RSUs), cloud storage, and display services, facilitating efficient communication, data storage, and retrieval. This study not only advances the state-of-the-art in vehicular cloud computing but also presents a practical solution for enhancing smart transportation systems.
Quantum interactions with radiation that moves
Creators: name: Mølmer, Klaus
Publisher: name: Zenodo
Year: 2020
Subjects: quantum science
quantum optics

description: How does a quantum system interact with a travelling pulse of quantum radiation, prepared, e.g., in a number state or a coherent state of light? You may think that this problem has been text book material for decades along with detailed solutions for the case of simple, few level systems. But, in fact, it has not. While crucial for multiple effects in quantum optics and for the entire concept of flying and stationary qubits, quantum optics textbooks do not provide a formal description applicable to this foundational and elementary interaction process. After the introduction of a new (and simple) theoretical formalism that, accounts for the interaction of travelling pulses of quantized radiation with a local quantum system, I shall discuss applications of the theory to quantum pulses of optical, microwave and acoustic excitations and show examples of relevance to recent experiments with qubits and non-linear resonators.
description: {"references": ["Wikipedia contributors, \"Jaynes\u2013Cummings model - Schr\u00f6dinger picture dynamics\", Wikipedia (retrieved 2020-05-10)", "Alexander Holm Kiilerich and Klaus M\u00f8lmer, \"Input-Output Theory with Quantum Pulses\", Physical Review Letters 123, 123604 (2019), DOI:10.1103/PhysRevLett.123.123604", "Alexander Holm Kiilerich and Klaus M\u00f8lmer, \"Quantum interactions with pulses of radiation\", arXiv:2003.04573 (2020)", "Kevin A. Fischer, Rahul Trivedi, Vinay Ramasesh, Irfan Siddiqi, and Jelena Vu\u010dkovi\u0107, \"Scattering into one-dimensional waveguides from a coherently-driven quantum-optical system\", Quantum 2, 69 (2018), DOI:10.22331/q-2018-05-28-69"]}
Robustness of structurally equivalent concurrent parity games
Creators: name: Chatterjee, Krishnendu
Publisher: name: IST Austria
Year: 2011
Subjects: 000 Computer science, knowledge & general works

description: We consider two-player stochastic games played on a finite state space for an infinite num- ber of rounds. The games are concurrent: in each round, the two players (player 1 and player 2) choose their moves independently and simultaneously; the current state and the two moves determine a probability distribution over the successor states. We also consider the important special case of turn-based stochastic games where players make moves in turns, rather than concurrently. We study concurrent games with ω-regular winning conditions specified as parity objectives. The value for player 1 for a parity objective is the maximal probability with which the player can guarantee the satisfaction of the objective against all strategies of the opponent. We study the problem of continuity and robustness of the value function in concurrent and turn-based stochastic parity games with respect to imprecision in the transition probabilities. We present quantitative bounds on the difference of the value function (in terms of the imprecision of the transition probabilities) and show the value continuity for structurally equivalent concurrent games (two games are structurally equivalent if the support of the transition func- tion is same and the probabilities differ). We also show robustness of optimal strategies for structurally equivalent turn-based stochastic parity games. Finally we show that the value continuity property breaks without the structurally equivalent assumption (even for Markov chains) and show that our quantitative bound is asymptotically optimal. Hence our results are tight (the assumption is both necessary and sufficient) and optimal (our quantitative bound is asymptotically optimal).
The Flux Auto- and Cross-Correlation of the Lyman-alpha Forest. I. Spectroscopy of QSO Pairs with Arcminute Separations and Similar Redshifts
Creators: name: Marble, Andrew R.
name: Eriksen, Kristoffer A.
name: Impey, Chris D.
name: Bai, Lei
name: Miller, Lance
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The Lyman-alpha forest has opened a new redshift regime for cosmological investigation. At z > 2 it provides a unique probe of cosmic geometry and an independent constraint on dark energy that is not subject to standard candle or ruler assumptions. In Paper I of this series on using the Lyman-alpha forest observed in pairs of QSOs for a new application of the Alcock-Paczynski test, we present and discuss the results of a campaign to obtain moderate-resolution spectroscopy (FWHM ~ 2.5 Angstroms) of the Lyman-alpha forest in pairs of QSOs with small redshift differences (Delta z < 0.25, z > 2.2) and arcminute separations (< 5'). This data set, composed of seven individual QSOs, 35 pairs, and one triplet, is also well-suited for future investigations of the coherence of Lyman-alpha absorbers on ~ 1 Mpc transverse scales and the transverse proximity effect. We note seven revisions for previously published QSO identifications and/or redshifts.
description: 20 pages
The Friedrichs-Model with fermion-boson couplings
Creators: name: Civitarese, O.
name: Gadella, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In this work we present an extended version of the Friedrichs Model, which includes fermion-boson couplings. The set of fermion bound states is coupled to a boson field with discrete and continuous components. As a result of the coupling some of the fermion states may become resonant states. This feature suggests the existence of a formal link between the occurrence of Gamow Resonant States in the boson sector, as predicted by the standard Friedrichs Model, with similar effects in the set of solutions of the fermion central potential (Gamow fermion resonances). The structure of the solutions of the model is discussed by using different approximations to the model space. Realistic couplings constants are used to calculate fermion resonances in a heavy mass nucleus.
description: 24 pages
The nucleosynthesis of Al26 and Fe60 in solar metallicity stars extending in mass from 11 to 120 Msun: the hydrostatic and explosive contributions
Creators: name: Limongi, Marco
name: Chieffi, Alessandro
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the \nuk{Al}{26} and \nuk{Fe}{60} yields produced by a generation of solar metallicity stars ranging in mass between 11 and 120\msun. We discuss the production sites of these $γ$ ray emitters and quantify the relative contributions of the various components. More specifically we provide the separate contribution of the wind, the C convective shell and the explosive Ne/C burning to the total \nuk{Al}{26} yield per each stellar model in our grid. We provide the contributions of the He convective shell, the C convective shell and the explosive Ne/C burning to the \nuk{Fe}{60} yield as well. From these computations we conclude that, at variance with current beliefs, \nuk{Al}{26} is mainly produced by the explosive C/Ne burning over most of the mass interval presently analyzed while \nuk{Fe}{60} is mainly produced by the C convective shell and the He convective shell.
description: 63 pages, 17 figures, 5 tables, ApJ accepted
Partial-observation stochastic games: How to win when belief fails
Creators: name: Chatterjee, Krishnendu
name: Doyen, Laurent
Publisher: name: IST Austria
Year: 2011
Subjects: 000 Computer science, knowledge & general works

description: In two-player finite-state stochastic games of partial obser- vation on graphs, in every state of the graph, the players simultaneously choose an action, and their joint actions determine a probability distri- bution over the successor states. The game is played for infinitely many rounds and thus the players construct an infinite path in the graph. We consider reachability objectives where the first player tries to ensure a target state to be visited almost-surely (i.e., with probability 1) or pos- itively (i.e., with positive probability), no matter the strategy of the second player. We classify such games according to the information and to the power of randomization available to the players. On the basis of information, the game can be one-sided with either (a) player 1, or (b) player 2 having partial observation (and the other player has perfect observation), or two- sided with (c) both players having partial observation. On the basis of randomization, (a) the players may not be allowed to use randomization (pure strategies), or (b) they may choose a probability distribution over actions but the actual random choice is external and not visible to the player (actions invisible), or (c) they may use full randomization. Our main results for pure strategies are as follows: (1) For one-sided games with player 2 perfect observation we show that (in contrast to full randomized strategies) belief-based (subset-construction based) strate- gies are not sufficient, and present an exponential upper bound on mem- ory both for almost-sure and positive winning strategies; we show that the problem of deciding the existence of almost-sure and positive winning strategies for player 1 is EXPTIME-complete and present symbolic algo- rithms that avoid the explicit exponential construction. (2) For one-sided games with player 1 perfect observation we show that non-elementary memory is both necessary and sufficient for both almost-sure and posi- tive winning strategies. (3) We show that for the general (two-sided) case finite-memory strategies are sufficient for both positive and almost-sure winning, and at least non-elementary memory is required. We establish the equivalence of the almost-sure winning problems for pure strategies and for randomized strategies with actions invisible. Our equivalence re- sult exhibit serious flaws in previous results in the literature: we show a non-elementary memory lower bound for almost-sure winning whereas an exponential upper bound was previously claimed.
Flat band carrier confinement in magic-angle twisted bilayer graphene
Creators: name: Tilak, Nikhil
name: Lai, Xinyuan
name: Wu, Shuang
name: Zhang, Zhenyuan
name: Xu, Mingyu
name: Ribeiro, Raquel de Almeida
name: Canfield, Paul C
name: Andrei, Eva Y.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Magic angle twisted bilayer graphene has emerged as a powerful platform for studying strongly correlated electron physics, owing to its almost dispersionless low-energy bands and the ability to tune the band filling by electrostatic gating. Techniques to control the twist angle between graphene layers have led to rapid experimental progress but improving sample quality is essential for separating the delicate correlated-electron physics from disorder effects. Owing to the 2D nature of the system and the relatively low carrier density, the samples are highly susceptible to small doping inhomogeneity which can drastically modify the local potential landscape. This potential disorder is distinct from the twist-angle variation which has been studied elsewhere. Here, by using low temperature scanning tunneling spectroscopy and planar tunneling junction measurements, we demonstrate that flat bands in twisted bilayer graphene can amplify small doping inhomogeneity that surprisingly leads to carrier confinement, which in graphene could previously only be realized in the presence of a strong magnetic field.
description: 35 pages, 13 figures
Hyperspherical Description of the Degenerate Fermi Gas: S-wave Interactions
Creators: name: Rittenhouse, Seth T.
name: Cavagnero, M. J.
name: von Stecher, Javier
name: Greene, Chris H.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We present a unique theoretical description of the physics of the spherically trapped $N$-atom degenerate Fermi gas (DFG) at zero temperature based on an ordinary Schrödinger equation with a microscopic, two body interaction potential. With a careful choice of coordinates and a variational wavefunction, the many body Schrödinger equation can be accurately described by a \emph{linear}, one dimensional effective Schrödinger equation in a single collective coordinate, the rms radius of the gas. Comparisons of the energy, rms radius and peak density of ground state energy are made to those predicted by Hartree-Fock (HF). Also the lowest radial excitation frequency (the breathing mode frequency) agrees with a sum rule calculation, but deviates from a HF prediction.
Conference report: "Self-management for better health? Reflections on the self-tracking culture"
Creators: name: Trinkhaus, Niklas
Publisher: name: Zenodo
Year: 2019

description: The growing self-tracking culture is expected to be part of the solution to severe problems in the public health sector because it promises a personalised, participatory and preventive approach towards health. Even though there may be some benefits and positive outcomes of self-tracking, Btihaj Ajana’s keynote aimed to “caution against the excessive optimism towards the role and the potential of self-tracking technologies”.
Nilpotent Classical Mechanics
Creators: name: Frydryszak, Andrzej M
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The formalism of nilpotent mechanics is introduced in the Lagrangian and Hamiltonian form. Systems are described using nilpotent, commuting coordinates $η$. Necessary geometrical notions and elements of generalized differential $η$-calculus are introduced. The so called $s-$geometry, in a special case when it is orthogonally related to a traceless symmetric form, shows some resemblances to the symplectic geometry. As an example of an $η$-system the nilpotent oscillator is introduced and its supersymmetrization considered. It is shown that the $R$-symmetry known for the Graded Superfield Oscillator (GSO) is present also here for the supersymmetric $η$-system. The generalized Poisson bracket for $(η,p)$-variables satisfies modified Leibniz rule and has nontrivial Jacobiator.
description: 23 pages, no figures. Corrected version. 2 references added
On Symmetries in the Theory of Finite Rank Singular Perturbations
Creators: name: Hassi, Seppo
name: Kuzhel, Sergii
Publisher: name: arXiv
Year: 2008
Subjects: subject: Spectral Theory (math.SP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: For a nonnegative self-adjoint operator $A_0$ acting on a Hilbert space $\mathfrak{H}$ singular perturbations of the form $A_0+V, \ V=\sum_{1}^{n}{b}_{ij}ψ_i$ are studied under some additional requirements of symmetry imposed on the initial operator $A_0$ and the singular elements $ψ_j$. A concept of symmetry is defined by means of a one-parameter family of unitary operators $\sU$ that is motivated by results due to R. S. Phillips. The abstract framework to study singular perturbations with symmetries developed in the paper allows one to incorporate physically meaningful connections between singular potentials $V$ and the corresponding self-adjoint realizations of $A_0+V$. The results are applied for the investigation of singular perturbations of the Schrödinger operator in $L_2(\dR^3)$ and for the study of a (fractional) \textsf{p}-adic Schrödinger type operator with point interactions.
description: This is a modified version of the paper: S. Hassi and S. Kuzhel `On Symmetries in the Theory of Singular Perturbations', Working papers of the University of Vaasa, 2006
Fluid-particle separation in a random flow described by the telegraph model
Creators: name: Falkovich, Gregory
name: Afonso, Marco Martins
Publisher: name: arXiv
Year: 2007
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We study the statistics of the relative separation between two fluid particles in a spatially smooth and temporally random flow. The Lagrangian strain is modelled by a telegraph noise, which is a stationary random Markov process that can only take two values with known transition probabilities. The simplicity of the model enables us to write closed equations for the inter-particle distance in the presence of a finite-correlated noise. In 1D, we are able to find analytically the long-time growth rates of the distance moments and the senior Lyapunov exponent, which consistently turns out to be negative. We also find the exact expression for the Cramér function and show that it satisfies the fluctuation relation (for the probability of positive and negative entropy production) despite the time irreversibility of the strain statistics. For the 2D incompressible isotropic case, we obtain the Lyapunov exponent (positive) and the asymptotic growth rates of the moments in two opposite limits of fast and slow strain. The quasi-deterministic limit (of slow strain) turns out to be singular, while a perfect agreement is found with the already-known delta-correlated case.
description: 7 pages, equation (3) corrected, sentences added at the end of section 1, bibliography updated
Hierarchy of continuous-variable quantum resource theories
Creators: name: Gianfelici, Giulio
name: Kampermann, Hermann
name: Bruß, Dagmar
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Connections between the resource theories of coherence and purity (or non-uniformity) are well known for discrete-variable, finite-dimensional, quantum systems. We establish analogous results for continuous-variable systems, in particular Gaussian systems. To this end, we define the concept of maximal coherence at fixed energy, which is achievable with energy-preserving unitaries. We show that the maximal Gaussian coherence (where states and operations are required to be Gaussian) can be quantified analytically by the relative entropy. We then propose a resource theory of non-uniformity, by considering the purity of a quantum state at fixed energy as resource, and by defining non-uniformity monotones. In the Gaussian case, we prove the equality of Gaussian non-uniformity and maximal Gaussian coherence. Finally, we show a hierarchy for non-uniformity, coherence, discord and entanglement in continuous-variable systems.
description: 22 pages, 3 figures
Local Optical Conductivity of Bilayer Graphene with Kink Potential
Creators: name: Dai, Zhen-Bing
name: Li, Zhiqiang
name: He, Yan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the optical response of bilayer graphene with a kink potential composed of a domain wall separating two AB regions with opposite interlayer bias. The band structure and the local optical conductivity in real space are investigated in details based on a continuum model. We find that the one-dimensional chiral states localized at the domain wall contribute significantly to the local optical conductivity, which shows a clear distinction in different regions. The effects of domain wall states on optical conductivity can be detected by spatially and frequency resolved spectroscopic features. From the spectrum at various Fermi energies, important features in the band structure such as the energy separation between two chiral states can be directly measured. When the domain wall region is broad, the spatial distribution of local optical conductivity can provide important information on the bound states as well as the topological domain wall states.
description: 8 pages, 4 figures
Sister Libraries Collaborate across Borders
Creators: name: Pedersoli, Heleni
name: Herron, Patricia
Publisher: name: Digital Repository at the University of Maryland
Year: 2007
Subjects: Sister Libraries
University of Maryland Libraries
Tec de Monterrey

description: The article discusses an Association of College Research Libraries (ACRL) sister libraries partnership that was established in April 2006 between the University of Maryland Libraries and the Tecnológico de Monterey in Monterrey, Mexico.
Inertial particles driven by a telegraph noise
Creators: name: Falkovich, G.
name: Musacchio, S.
name: Piterbarg, L.
name: Vucelja, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We present a model for the Lagrangian dynamics of inertial particles in a compressible flow, where fluid velocity gradients are modelled by a telegraph noise. The model allows for an analytic investigation of the role of time correlation of the flow in the aggregation-disorder transition of inertial particle. The dependence on Stokes and Kubo numbers of the Lyapunov exponent of particle trajectories reveals the presence of a region in parameter space (St, Ku) where the leading Lyapunov exponent changes sign, thus signaling the transition. The asymptotics of short and long-correlated flows are discussed, as well as the fluid-tracer limit.
description: 8 pages, 6 figures