cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Το Αγιολογικό και Υμνογραφικό έργο του αγίου Ανδρέα Κρήτης για τη Θεοτόκο
Creators: name: Λάιου, Δήμητρα Ζήση
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: άγιος Ανδρέας Κρήτης
Θεοτόκος
Αγιολογία
St. Andrew of Crete
Theotokos
Hagiography

description: Σκοπός της παρούσης εργασίας είναι η προβολή του θεομητορικού συγγραφικού έργου του αγίου Ανδρέα Κρήτης, ομιλητικού και υμνογραφικού. Αρχικά γίνεται μια σύντομη αναφορά στον βίο και τη συγγραφική παραγωγή του ιεροσολυμίτη ιεράρχη. Στη συνέχεια μελετώνται οι οχτώ λόγοι του αγίου για τη Θεοτόκο, εκδεδομένοι στη σειρά Patrologia Graeca. Αφού προηγηθεί η περιληπτική τους απόδοση, παρατίθενται τα γραμματολογικά τους χαρακτηριστικά. Ακολουθεί η καταγραφή των θεομητορικών του κανόνων, όπως εμφανίζονται στο Θεοτοκάριο και τα Μηναία, συνοδευόμενη από διάφορα χαρακτηριστικά τους και την επισήμανση της αλληλεπίδρασης μεταξύ ομιλητικής και υμνογραφίας. Η εργασία ολοκληρώνεται με την αναφορά σε ορισμένες πτυχές της θεομητορικής διδασκαλίας του αγίου, όπως η δαυϊδική καταγωγή και η Κοίμηση της Θεοτόκου
description: This thesis aims to present the homiletic and hymnographic work of Saint Andrew of Crete on the Theotokos. It starts with a brief introduction about the life and works of the Saint. Further, it analyzes the eight homilies on the Mother of God recorded in Patrologia Graeca focusing on their literary characteristics. It continues with presenting some features of the canons on the Theotokos from the Theotokarion and Menaion and highlighting the interaction between homiletic and hymnography. The thesis ends with references on several particularities of the Saint’s doctrine on the Theotokos, such as her descent from David and her Dormition
Exponential distributions of collective flow-event properties in viscous liquid dynamics
Creators: name: Bailey, Nicholas P.
name: Schrøder, Thomas B.
name: Dyre, Jeppe C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We study the statistics of flow events in the inherent dynamics in supercooled two- and three-dimensional binary Lennard-Jones liquids. Distributions of changes of the collective quantities energy, pressure and shear stress become exponential at low temperatures, as does that of the event "size" $S\equiv\sum {d_i}^2$. We show how the $S$-distribution controls the others, while itself following from exponential tails in the distributions of (1) single particle displacements $d$, involving a Lindemann-like length $d_L$ and (2) the number of active particles (with $d>d_L$).
description: Accepter version (PRL)
Phase transitions in superconductor/ferromagnet bilayer driven by spontaneous supercurrents
Creators: name: Devizorova, Zh.
name: Putilov, A. V.
name: Chaykin, I.
name: Mironov, S.
name: Buzdin, A. I.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We investigate superconducting phase transition in superconductor(S)/ferromagnet(F) bilayer with Rasba spin-orbit interaction at S/F interface. This spin-orbit coupling produces spontaneous supercurrents flowing inside the atomic-thickness region near the interface, which are compensated by the screening Meissner currents [S. Mironov and A. Buzdin, Phys. Rev. Lett \textbf{118}, 077001 (2017)]. In the case of thin superconducting film the emergence of the spontaneous surface currents causes the increase of the superconducting critical temperature and we calculate the actual value of the critical temperature shift. We also show that in the case of type-I superconducting film this phase transition can be of the first order. In the external magnetic field the critical temperature depends on the relative orientation of the external magnetic field and the exchange field in the ferromagnet. Also we predict the in-plane anisotropy of the critical current which may open an alternative way for the experimental observation of the spontaneous supercurrents generated by the SOC.
Οι Κουάκεροι. Ιστορία και διδασκαλία
Creators: name: Μούντζελου, Αντιγόνη Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: Κουάκεροι
Θρησκευτική Κοινωνία των Φίλων
Προτεσταντικές Ομάδες
Quakers
Religious Society of Friends
Protestant Groups

description: Σκοπός της μεταπτυχιακής εργασίας ήταν η περιγραφή του ιστορικού πλαισίου των απαρχών και της εξέλιξης της «Θρησκευτικής Κοινωνίας των Φίλων» ή αλλιώς της κίνησης των «Κουάκερων», καθώς και η παρουσίαση της διδασκαλίας της. Αρχικά, έγινε μια εκτενής ανάλυση της ιστορικής εξέλιξης του κινήματος. Στη συνέχεια παρουσιάστηκε διεξοδικά ο βίος του ιδρυτή της κίνησης καθώς και των σημαντικότερων εκπροσώπων της. Ακόμη, έγινε λεπτομερής αναφορά στις διάφορες διασπάσεις που υπέστη η κίνηση κατά την διαμόρφωση της αλλά και στους βασικούς κλάδους στους οποίους διαιρείται σήμερα. Επίσης, μελετήθηκαν οι θεμελιώδεις θρησκευτικές αρχές της κίνησης καθώς και ο τρόπος ζωής και λατρείας των μελών της. Επιπλέον, παρουσιάστηκε η σύγχρονη κατάσταση του θρησκευτικού κινήματος των Κουάκερων καθώς και η σχέση τους με το Παγκόσμιο Συμβούλιο Εκκλησιών
description: The aim of this master thesis was to present the beginnings and the history of the "Religious Society of Friends" or the "Quaker Movement" and also to present its doctrine. Initially, an extensive analysis of the history of the movement was made. Then the life of the founder of the movement as well as of its most important representatives was presented. In addition, a detailed account of the various divisions that the movement suffered during its formation and of the main branches in which it is divided today was made. Moreover, the fundamental beliefs of the movement as well as the way of life and the worship of its members were analyzed. Furthermore, a presentation of the contemporary state of the Quaker Movement and its relationship with the World Council of Churches was made
Interacting dark energy: generic cosmological evolution for two scalar fields
Creators: name: de la Macorra, A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the cosmological evolution of two coupled scalar fields with an arbitrary interaction term V_T(ϕ,\vp) in the presence of a barotropic fluid, which can be matter or radiation. The force between the barotropic fluid and the scalar fields is only gravitational. We show that the dynamics is completely determine by only three parameters L_i i=1,2,3. We determine all critical points and study their stability. We find six different attractor solutions depending on the values of L_i and we calculate the relevant cosmological parameters. We discuss the possibility of having one of the scalar fields as of dark energy while the other could be a scalar field redshifting as matter.
description: 13 pages, 16 figures
Parabolic integrodifferential identification problems related to radial memory kernels II
Creators: name: Favaron, A.
name: Lorenzi, A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35R30 (35K05 35R10)

description: We are concerned with the problem of recovering the radial kernel $k$, depending also on time, in the parabolic integro-differential equation $$D_{t}u(t,x)={\cal A}u(t,x)+\int_0^t k(t-s,|x|){\cal B}u(s,x)ds +\int_0^t D_{|x|}k(t-s,|x|){\cal C}u(s,x)ds+f(t,x),$$ ${\cal A}$ being a uniformly elliptic second-order linear operator in divergence form. We single out a special class of operators ${\cal A}$ and two pieces of suitable additional information for which the problem of identifying $k$ can be uniquely solved locally in time when the domain under consideration is a ball or a disk.
description: 18 pages
Electron-phonon anomaly related to charge stripes: static stripe phase versus optimally-doped superconducting La1.85Sr0.15CuO4
Creators: name: Reznik, D.
name: Pintschovius, L.
name: Fujita, M.
name: Yamada, K.
name: Gu, G. D.
name: Tranquada, J. M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Inelastic neutron scattering was used to study the Cu-O bond-stretching vibrations in optimally doped La1.85Sr0.15CuO4 (Tc = 35 K) and in two other cuprates showing static stripe order at low temperatures, i.e. La1.48Nd0.4Sr0.12CuO4 and La1.875Ba0.125CuO4. All three compounds exhibit a very similar phonon anomaly, which is not predicted by conventional band theory. It is argued that the phonon anomaly reflects a coupling to charge inhomogeneities in the form of stripes, which remain dynamic in superconducting La1.85Sr0.15CuO4 down to the lowest temperatures. These results show that the phonon effect indicating stripe formation is not restricted to a narrow region of the phase diagram around the so-called 1/8 anomaly but occurs in optimally doped samples as well.
description: to appear in J. Low Temp. Phys
The three-nucleon system as a laboratory for nuclear physics: the need for 3N forces
Creators: name: Kalantar-Nayestanaki, N.
name: Epelbaum, E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Recent experimental results in three-body systems have unambiguously shown that calculations based on nucleon-nucleon forces fail to accurately describe many experimental observables and one needs to include effects which are beyond the realm of the two-body potentials. This conclusion owes its significance to the fact that experiments and calculations can both be performed with a high accuracy. In this short review, a sample of recent experimental results along with the results of the state-of-the-art calculations will be presented and discussed.
description: Commissioned article for Nuclear Physics News, 8 pages, 6 figures
Βυζαντινός Πολιτισμός και Χριστιανισμός στην θεατρική εργογραφία του Άγγελου Τερζάκη
Creators: name: Καβούνη, Θέκλα Χαρίλαου
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: Άγγελος Τερζάκης
Βυζαντινός Πολιτισμός και Χριστιανισμός
Θεατρικά έργα: «Αυτοκράτωρ Μιχαήλ», «Ο Σταυρός και το Σπαθί», «Θεοφανώ».
Angelos Terzakis
Byzantine culture and Christianity
Theatrical works: “Emperor Michael”, “The Cross and the Sword”, “Theophano”.

description: Άγγελος Τερζάκης 2. Βυζαντινός Πολιτισμός και Χριστιανισμός 3. Θεατρικά έργα: «Αυτοκράτωρ Μιχαήλ», «Ο Σταυρός και το Σπαθί», «Θεοφανώ». ΛΕΞΕΙΣ ή ΦΡΑΣΕΙΣ ΚΛΕΙΔΙΑ (ΑΓΓΛΙΚΑ) 1. Angelos Terzakis 2. Byzantine culture and Christianity 3. Theatrical works: “Emperor Michael”, “The Cross and the Sword”, “Theophano”.
description: The aim of the present master’s thesis was the research and study of the Byzantine and Christian elements in the theatrical works of Angelos Terzakis. Our focal point was the analysis of the three Byzantine themed theatrical plays of the above writer: Emperor Michael(1936), The Cross and the Sword(1939) and Theophano(1956). Our approach was within the framework of interdisciplinarity between the science of History, Theology and Theater art. In each play we examined: the historical framework, the theological and religious elements (as they are presented to determine the spirit of the time and to express the spiritual anguish of the heroes), the writer’s account and the reviews of the critics. We also presented a list of performances for each play. Then, we analyzed Angelos Terzakis’ journey through the Byzantine centuries, his reception of Byzantium in his theatrical works and we also made a reference on the tendency of the 1930s generation writers to return to the Greek cultural roots. Finaly, we made a conclusion on the importance of the Byzantine and Christian elements in the theatrical plays of Angelos Terzakis, as a cultural bridge between the heritage of Ancient Greek Tragedy and the theatrical tradition of the 20th century
Classification of Dimension 5 Lorentz Violating Interactions in the Standard Model
Creators: name: Bolokhov, Pavel A.
name: Pospelov, Maxim
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We give a complete classification of mass dimension five Lorentz-non-invariant interactions composed from the Standard Model fields, using the effective field theory approach. We identify different classes of Lorentz violating operators, some of which are protected against transmutation to lower dimensions even at the loop level. Within each class of operators we determine a typical experimental sensitivity to the size of Lorentz violation.
description: 26 pages
Infusing Theory into Deep Learning for Interpretable Reactivity Prediction
Creators: name: Wang, Shih-Han
name: Pillai, Hemanth Somarajan
name: Wang, Siwen
name: Achenie, Luke E. K.
name: Xin, Hongliang
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Despite recent advances of data acquisition and algorithms development, machine learning (ML) faces tremendous challenges to being adopted in practical catalyst design, largely due to its limited generalizability and poor explainability. Here, we develop a theory-infused neural network (TinNet) approach that integrates deep learning algorithms with the well-established $d$-band theory of chemisorption for reactivity prediction of transition-metal surfaces. With simple adsorbates (e.g., *OH, *O, and *N) at active site ensembles as representative descriptor species, we demonstrate that the TinNet is on par with purely data-driven ML methods in prediction performance, while being inherently interpretable. Incorporation of scientific knowledge of physical interactions into learning from data sheds further light on the nature of chemical bonding and opens up new avenues for ML discovery of novel motifs with desired catalytic properties.
Spectroscopic distances of 28 nearby star candidates
Creators: name: Jahreiss, H.
name: Meusinger, H.
name: Scholz, R. -D.
name: Stecklum, B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: 28 hitherto neglected candidates for the Catalogue of Nearby Stars (CNS) were investigated to verify their classification and to improve their distance estimates. All targets had at least a preliminary status of being nearby dwarf stars based on their large proper motions and relatively faint magnitudes. Better photometric and/or spectroscopic distances were required for selecting stars which are worth the effort of trigonometric parallax measurements. Low-resolution spectra were obtained with NASPEC at the Tautenburg 2m telescope and with CAFOS at the Calar Alto 2.2m telescope. The spectral types of M-type stars were determined by direct comparison of the target's spectra with those of comparison stars of known spectral types observed with the same instrument. The classification of earlier types was done based on comparison with published spectral libraries. The majority were classified as M dwarfs including 11 stars within 25 pc. The fainter component of LDS 1365, previously thought to form a nearby common proper motion pair, is according to our results an unrelated high-velocity background star. For several other nearby common proper motion pairs our distance estimates of the fainter components are in good agreement with Hipparcos distances of the brighter components. (abridged)
description: 5 pages, 4 figures, accepted by Astron. Astrophys
Στεγνά» και προγράμματα υποκαταστάτων. Η ανάγκη συνεργασιών και δικτυώσεων, στο παρελθόν, το παρόν και το μέλλον
Creators: name: Τανανάκη, Μαρία Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: Θεραπευτικά προγράμματα
Κοινή υπηρεσία θεραπείας
Συνεργασία υπαρχουσών υπηρεσιών
Therapeutic programs
Mutual treatment service
Co-operation of existing services

description: Η εργασία αυτή εξετάζει τη δυνατότητα δημιουργίας μιας κοινής υπηρεσίας θεραπείας για όλους τους χρήστες. Έτσι, ασχολείται με τις υπάρχουσες θεραπείες απεξάρτησης (κλειστά και ανοιχτά προγράμματα, με την χορήγηση υποκατάστατων ή χωρίς) και κάνει μια σύντομη αναδρομή της δημιουργίας των υπηρεσιών αυτών. Εξετάζοντας ανάλογα προγράμματα εξατομικευμένης θεραπείας στο εξωτερικό, επιχειρείται η συζήτηση πάνω σε συγκεκριμένους προβληματισμούς και η εξέταση της δυνατότητας και των χαρακτηριστικών μιας κοινής υπηρεσίας θεραπείας για όλους τους χρήστες στην Ελλάδα. Αναδεικνύεται ότι παρά τη δυσκολία του εγχειρήματος, μια τέτοια πρόταση δεν είναι ανέφικτη, εφόσον προκύψει μια ανοιχτή, ρεαλιστική και γόνιμη συζήτηση γύρω από το ζήτημα
description: This paper examines the possibility of creating a mutual treatment service for all drug-addicts. Consequently, it deals with existing drug addiction therapies (closed and open programs, with or without substitutes) and makes a brief review of the creation of these services. By examining similar programs of personalized treatment abroad, we are discussing specific concerns and examining the possibility and characteristics of a common treatment service for all users in Greece. It turns out that, despite the difficulty of the venture, such a proposal is not impracticable, provided that an open, realistic and fruitful debate emerges around the issue
description: Σε συνεργασία με το Πανεπιστήμιο Λευκωσίας Κύπρου
Chirality-induced spin texture switching in twisted bilayer graphene
Creators: name: Yananose, Kunihiro
name: Cantele, Giovanni
name: Lucignano, Procolo
name: Cheong, Sang-Wook
name: Yu, Jaejun
name: Stroppa, Alessandro
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The interlayer van der Waals interaction in twisted bilayer graphene (tBLG) induces both in-plane and out-of-plane atomic displacements showing complex patterns that depend on the twist angle. In particular, for small twist angles, within each graphene layer, the relaxations give rise to a vortex-like displacement pattern which is known to affect the dispersion of the flat bands. Here, we focus on yet another structural property, the chirality of the twisted bilayer. We perform first-principles calculations based on density functional theory to investigate the properties induced by twist chirality in both real and momentum space. In real space, we study the interplay between twist chirality and atomic relaxation patterns. In momentum space, we investigate the spin textures around the $K$ points of the Brillouin zone, showing that alternating vortex-like textures are correlated with the chirality of tBLG. Interestingly, the helicity of each vortex is inverted by changing the chirality while the different twist angles also modify the spin textures. We discuss the origin of the spin textures by calculating the layer weights and using plot regression models.
description: 12 pages and 7 figures in main text, 11 pages and 12 figures in supplemental material; revised according to referees' suggestions; Accepted in Phys. Rev. B
Η διερεύνηση της ιδεοψυχαναγκαστικής-καταναγκαστικής συμπεριφοράς και της σχετιζόμενης με την υγεία ποιότητα ζωής σε άτομα που καπνίζουν στο Νομό Σερρών
Creators: name: Τζουράκης, Παναγιώτης Σοφοκλή
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: Κάπνισμα
Ιδεοψυχαναγκαστική-Καταναγκαστική Διαταραχή
Σχετιζόμενη με την Υγεία Ποιότητα Ζωής
Smoking
Obsessive-Compulsive Disorder
Health-Related Quality of Life

description: Σκοπός της παρούσας μελέτης ήταν η διερεύνηση της ιδεοψυχαναγκαστικής-καταναγκαστικής συμπεριφοράς και της σχετιζόμενης με την υγεία ποιότητα ζωής σε άτομα που καπνίζουν στο Νομό Σερρών. Παράλληλα αξιολογήθηκε τόσο η επίδραση των κοινωνικο-δημογραφικών παραμέτρων, κλινικών και ανθρωπομετρικών χαρακτηριστικών όσο και η αντίληψη που έχουν για τη νόσο τους στη ΣΥΠΖ. Σύμφωνα με τα αποτελέσματα διαπιστώθηκε πως τα άτομα τα οποία είναι εθισμένα στο κάπνισμα τείνουν να εμφανίζουν περισσότερα ιδεοψυχαναγκαστικά-καταναγκαστικά συμπτώματα σε σύγκριση με τα άτομα τα οποία δεν καπνίζουν. Παράλληλα διαπιστώθηκε πως τα κοινωνικό-δημογραφικά χαρακτηριστικά καθώς και τα χρόνια εθισμού στο κάπνισμα, όπως και ο αριθμός των τσιγάρων επηρεάζουν τη γενική-φυσική υγεία των συμμετεχόντων. Τέλος το εκπαιδευτικό τους επίπεδο επηρεάζει το συναισθηματικό τους ρόλο σε αντίθεση με το σωματικό τους βάρος που δεν το επηρεάζει σημαντικά
description: The purpose of this study was to investigate obsessive-compulsive-behavioral and health-related quality of smokers who live in the prefecture of Serres. Simultaneously, the impact of the socio-demographic parameters, clinical and anthropometric characteristics and the perception of their disease in the HQRL were evaluated. According to the results was found that the people who are addicted to smoking tend to have more obsessive-compulsive symptoms than those who do not smoke. At the same time it was found that, the socio-demographic characteristics, the years of smoking addiction, as well as the number of cigarettes, have been affecting the general-physical health of the participants. Finally, their educational level influences their emotional role, as opposed to their body weight, which does not significantly affect impotantly
description: Σε συνεργασία με το Πανεπιστήμιο Λευκωσίας Κύπρου
Transcription of a discussion of Verdena's upbringing and a story about a famine
Creators: name: Parker, Verdena
name: Spence, Justin
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: hup

description: Audio file VP-250621-07: Transcription of a recording in which Verdena discusses aspects of her upbringing and tells a story about an encounter with a strange creature during a famine, file VP-231009-01, from 8:14 to 10:00.
Pressure-Induced Superconductivity in Sc to 74 GPa
Creators: name: Hamlin, J. J.
name: Schilling, J. S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Using a diamond anvil cell with nearly hydrostatic helium pressure medium we have significantly extended the superconducting phase diagram Tc(P) of Sc, the lightest of all transition metals. We find that superconductivity is induced in Sc under pressure, Tc increasing monotonically to 8.2 K at 74.2 GPa. The Tc(P) dependences of the trivalent d-electron metals Sc, Y, La, and Lu are compared and discussed within a simple s-d charge transfer framework.
description: to be published in Phys. Rev. B (Brief Reports)
Large Gauge Hierarchy in Gauge-Higgs Unification
Creators: name: Sakamoto, Makoto
name: Takenaga, Kazunori
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study a five dimensional SU(3) nonsupersymmetric gauge theory compactified on $M^4\times S^1/Z_2$ and discuss the gauge hierarchy in the scenario of the gauge-Higgs unification. Making use of calculability of the Higgs potential and a curious feature that coefficients in the potential are given by discrete values, we find two models, in which the large gauge hierarchy is realized, that is, the weak scale is naturally obtained from an unique large scale such as a grand unified theory scale or the Planck scale. The size of the Higgs mass is also discussed in each model. One of the models we find realizes both large gauge hierarchy and consistent Higgs mass, and shows that the Higgs mass becomes heavier as the compactified scale becomes smaller.
description: 21 pages, no figures, version to appear in PRD
Stresses in Smooth Flows of Dense Granular Media
Creators: name: Depken, Martin
name: Lechman, Jeremy B.
name: van Hecke, Martin
name: van Saarloos, Wim
name: Grest, Gary S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The form of the stress tensor is investigated in smooth, dense granular flows which are generated in split-bottom shear geometries. We find that, within a fluctuation fluidized spatial region, the form of the stress tensor is directly dictated by the flow field: The stress and strain-rate tensors are co-linear. The effective friction, defined as the ratio between shear and normal stresses acting on a shearing plane, is found not to be constant but to vary throughout the flowing zone. This variation can not be explained by inertial effects, but appears to be set by the local geometry of the flow field. This is in agreement with a recent prediction, but in contrast with most models for slow grain flows, and points to there being a subtle mechanism that selects the flow profiles.
description: 5 pages, 4 figures
Spherical functions on the de Sitter group
Creators: name: Varlamov, V. V.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mathematical Physics (math-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences
subject: 22E43; 22E70; 33C70; 35Q40

description: Matrix elements and spherical functions of irreducible representations of the de Sitter group are studied on the various homogeneous spaces of this group. It is shown that a universal covering of the de Sitter group gives rise to quaternion Euler angles. An explicit form of Casimir and Laplace-Beltrami operators on the homogeneous spaces is given. Different expressions of the matrix elements and spherical functions are given in terms of multiple hypergeometric functions both for finite-dimensional and unitary representations of the principal series of the de Sitter group.
description: 40 pages
Ειδική μεταχείριση χρηστών ναρκωτικών ουσιών στην προδικασία
Creators: name: Κατσαρός, Ανδρέας Ιωάννη
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: Χρήστες Ναρκωτικών
Προδικασία
Ναρκωτικά
Drug Users
Pre-trial Procedure
Drugs

description: Σκοπός της παρούσας διπλωματικής εργασίας είναι η μελέτη της ειδικής μεταχείρισης των χρηστών στην προδικασία. Αρχικά γίνεται ένας πρόλογος και στην συνέχεια παρατίθενται οι βασικές έννοιες σύμφωνα με τα σύγχρονα δεδομένα σχετικά με τις εξαρτησιογόνες ουσίες και στην συνέχεια γίνεται μια ιστορική αναδρομή. Στην συνέχεια αναφέρεται αναλυτικά η εξάρτηση και η ειδική μεταχείριση των εξαρτημένων χρηστών και οι έννομες συνέπειες συμμετοχής σε προγράμματα εκτός καταστημάτων κράτησης.Τέλος, παρατίθενται τα συμπεράσματα και η συζήτηση
description: The purpose of this diploma thesis is to study the special treatment of users in the pre-process.Initially, a preface is given, and the basic concepts are then presented according to the current data on the addictive substances and then a historical retrospective.The dependence and special treatment of the addicted users and the legal consequences of participation in programs outside detention facilities are detailed below.Finally, the conclusions and discussion are presented
description: Σε συνεργασία με τη Νομική Σχολή Πανεπιστημίου Λευκωσίας (Κύπρος)
Ναρκωτικά: Δυνατότητα ή όχι μετατροπής της ποινής.
Creators: name: Μισαηλίδης, Ιωάννης Μισαήλ
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: Μετατροπή
Ποινή
Ναρκωτικά
Converting
Sentence
Drugs

description: Στην παρούσα εργασία αναλύονται οι εξής θεματικές: α) η φύση της ποινής και συγκεκριμένα η έννοια της, η ιστορική εξέλιξη της και οι θεωρίες για την ποινή, β) ο θεσμός της μετατροπής, η ιστορική εξέλιξη του θεσμού και ο θεσμός της μετατροπής αναφορικά με την απαγόρευση μετατροπής της ποινής στο χώρο των ναρκωτικών (άρθρο 82 παρ. 10 ΠΚ), γ) η έννοια της εμπορίας των ναρκωτικών και υπόσταση του εγκλήματος του άρθρου 20 ν. 4139/2013, δ) διάκριση πλημμελήματος και κακουργήματος αναφορικά με το άρθρο 19 ΠΚ και την περίπτωση συνδρομής λόγων μείωσης της ποινής, ε) η προβληματική της συνολικής ποινής και ζ) συμπέρασμα και η άποψη του γράφοντος, προτάσεις για την κατάργηση της απόλυτης απαγόρευσης του θεσμού της μετατροπής στο χώρο των ναρκωτικών και εναλλακτικοί τρόποι έκτισης της ποινής
description: In this paper the following topics are analyzed: a) the nature of the sentence, namely its meaning, its historical development and the theories about the sentence, b) the institution of transformation, the historical evolution of the institution and the institution of the conversion in relation to (Article 82 paragraph 10 of Criminal Code); (c) the concept of drug trafficking and the state of the offense referred to in Article 20 of Law 4139/2013,(d) separation of misconduct and wrongdoing in relation to Article 19 of the Criminal Code and the case of grounds for reducing the sentence, (e) the problem of the total penalty and (g) the conclusion and the view of the writer, proposals for the abolition of the absolute prohibition on institution of transformation drugs and alternative ways of enforcing the sentence
description: Σε συνεργασία με τη Νομική Σχολή Πανεπιστημίου Λευκωσίας (Κύπρος)
Negative energy enhancement in layered holographic conformal field theories
Creators: name: May, Alex
name: Simidzija, Petar
name: Van Raamsdonk, Mark
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Using a holographic model, we study quantum field theories with a layer of one CFT surrounded by another CFT, on either a periodic or an infinite direction. We study the vacuum energy density in each CFT as a function of the central charges, the thickness of the layer(s), and the properties of the interfaces between the CFTs. The dual spacetimes in the holographic model include two regions separated by a dynamical interface with some tension. For two or more spatial dimensions, we find that a layer of CFT with more degrees of freedom than the surrounding one can have an anomalously large negative vacuum energy density for certain types of interfaces. The negative energy density (or null-energy density in the direction perpendicular to the interface) becomes arbitrarily large for fixed layer width when the tension of the bulk interface approaches a lower critical value. We argue that in cases where we have large negative energy density, we also have an anomalously high transition temperature to the high-temperature thermal state.
description: 1+27 pages, 10 figures, minor comments added to discussion in this version
XMM-Newton survey of two Upper Scorpius regions
Creators: name: Argiroffi, C.
name: Favata, F.
name: Flaccomio, E.
name: Maggio, A.
name: Micela, G.
name: Peres, G.
name: Sciortino, S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study X-ray emission from young stars by analyzing deep XMM-Newton observations of two regions of the Upper Scorpius association, having an age of 5 Myr. Based on near infrared and optical photometry we identify 22 Upper Scorpius photometric members among the 224 detected X-ray sources. We derive coronal properties of Upper Scorpius stars by performing X-ray spectral and timing analysis. The study of four strong and isolated stellar flares allows us to derive the length of the flaring loops. Among the 22 Upper Scorpius stars, 13 are identified as Upper Scorpius photometric members for the first time. The sample includes 7 weak-line T Tauri stars and 1 classical T Tauri star, while the nature of the remaining sources is unknown. Except for the intermediate mass star HD 142578, all the detected USco sources are low mass stars of spectral type ranging from G to late M. The X-ray emission spectrum of the most intense Upper Scorpius sources indicates metal depleted plasma with temperature of ~10 MK, resembling the typical coronal emission of active main sequence stars. At least 59% of the detected members of the association have variable X-ray emission, and the flaring coronal structures appear shorter than or comparable to the stellar radii already at the Upper Scorpius age. We also find indication of increasing plasma metallicity (up to a factor 20) during strong flares. We identify a new galaxy cluster among the 224 X-ray source detected: the X-ray spectrum of its intra cluster medium indicates a redshift of 0.41+/-0.02.
description: 27 pages, 15 postscript figures, accepted for publication in Astronomy and Astrophysics. A complete version of the paper, containing better qaulity figures and Appendices B & C, is available at http://www.astropa.unipa.it/Library/preprint.html
Evidence for deuterium astration in the planetary nebula Sh2-216?
Creators: name: Oliveira, Cristina M
name: Chayer, Pierre
name: Moos, H. Warren
name: Kruk, Jeffrey W.
name: Rauch, Thomas
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present FUSE observations of the line of sight to WD0439+466 (LS V +46 21), the central star of the old planetary nebula Sh2-216. The FUSE data shows absorption by many interstellar and stellar lines, in particular D I, H2 (J = 0 - 9), HD (J = 0 - 1), and CO. Many other stellar and ISM lines are detected in the STIS E140M HST spectra of this sightline, which we use to determine N(HI). We derive, for the neutral gas, D/H=(0.76 +0.12 -0.11)E-5, O/H = (0.89 +0.15 -0.11)E-4 and N/H = (3.24 +0.61-0.55)E-5. We argue that most of the gas along this sightline is associated with the planetary nebula. The low D/H ratio is likely the result of this gas being processed through the star (astrated) but not mixed with the ISM. This would be the first time that the D/H ratio has been measured in predominantly astrated gas. The O/H and N/H ratios derived here are lower than typical values measured in other planetary nebulae likely due to unaccounted for ionization corrections.
description: Accepted for publication is ApJL
Rough translations of audio files recorded in 2010
Creators: name: Parker, Verdena
name: Spence, Justin
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: hup

description: Audio file VP-250621-06: Rough translation (minute-by-minute) of files VP-120710-01 through VP-120710-08. No transcription in this session, translation only.
A theory for critically divergent fluctuations of dynamical events at non-ergodic transitions
Creators: name: Iwata, Mami
name: Sasa, Shin-ichi
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We theoretically study divergent fluctuations of dynamical events at non-ergodic transitions. We first focus on the finding that a non-ergodic transition can be described as a saddle connection bifurcation of an order parameter for a time correlation function. Then, following the basic idea of Ginzburg-Landau theory for critical phenomena, we construct a phenomenological framework with which we can determine the critical statistical properties at saddle connection bifurcation points. Employing this framework, we analyze a model by considering the fluctuations of an instanton in space-time configurations of the order parameter. We then obtain the exponents characterizing the divergences of the length scale, the time scale and the amplitude of the fluctuations of the order parameter at the saddle connection bifurcation. The results are to be compared with those of previous studies of the four-point dynamic susceptibility at non-ergodic transitions in glassy systems.
description: 5 pages. Minor revision. This version will appear in Europhys. Lett
ASVspoof 2019: spoofing countermeasures for the detection of synthesized, converted and replayed speech
Creators: name: Nautsch, Andreas
name: Wang, Xin
name: Evans, Nicholas
name: Kinnunen, Tomi
name: Vestman, Ville
name: Todisco, Massimiliano
name: Delgado, Héctor
name: Sahidullah, Md
name: Yamagishi, Junichi
name: Lee, Kong Aik
Publisher: name: arXiv
Year: 2021
Subjects: subject: Audio and Speech Processing (eess.AS)
subject: Cryptography and Security (cs.CR)
subject: Sound (cs.SD)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: The ASVspoof initiative was conceived to spearhead research in anti-spoofing for automatic speaker verification (ASV). This paper describes the third in a series of bi-annual challenges: ASVspoof 2019. With the challenge database and protocols being described elsewhere, the focus of this paper is on results and the top performing single and ensemble system submissions from 62 teams, all of which out-perform the two baseline systems, often by a substantial margin. Deeper analyses shows that performance is dominated by specific conditions involving either specific spoofing attacks or specific acoustic environments. While fusion is shown to be particularly effective for the logical access scenario involving speech synthesis and voice conversion attacks, participants largely struggled to apply fusion successfully for the physical access scenario involving simulated replay attacks. This is likely the result of a lack of system complementarity, while oracle fusion experiments show clear potential to improve performance. Furthermore, while results for simulated data are promising, experiments with real replay data show a substantial gap, most likely due to the presence of additive noise in the latter. This finding, among others, leads to a number of ideas for further research and directions for future editions of the ASVspoof challenge.
Changing urban eras in Canada: from the modern to the postmodern city
Creators: name: Desrochers, Michel
Publisher: name: University of British Columbia
Year: 2008

description: This thesis examines the production of space in Canadian cities since World War II. It is hypothesized that there has been a considerable shift in the city building process (encompassing the fields of planning, architecture and urban design) over the last two decades (1970-1990), and that new types of urban landscapes are being created, often very different than those built during the immediate post-war era (1950-1970). This shift is often described in academic literature as the move from the modern to the postmodern city. The approach adopted in the thesis is to examine the modern postmodern distinction from a design perspective. Academic literature in planning, geography and architecture, and observations from Canadian urban landscapes were sources used to gather information on the modern/postmodern distinction. These sources suggest that modern design principles produced functional landscapes (where form follows function), and that postmodern design principles are creating spaces that are both functional and "funky". Seven specific design principles are useful in describing the modern/postmodern distinction: the level of diversity, the level of exteriorization, the relation to nature, the level of decoration, the relation to urban history, the relation to urban context, and the scale of development. A case study of plans for downtown Vancouver since World War II was used to verify the findings from the literature and observations from Canadian urban landscapes. Two plans were chosen from the modern era (1956 and 1964 reports) and two from the postmodern era (1974 and 1991 reports). Four of the seven shifts in design principles were supported, and a further two were in evidence, though only in an implicit manner. The case study thus upholds the findings derived from the literature and observations from Canadian urban landscapes. It is suggested that the understanding of the shift from modern to postmodern design principles will help planners gain a better grasp on the current planning context, and hence be better suited to plan in an effective manner in today's "postmodern" world.
Gravimagnetic effect of the barycentric motion of the Sun and determination of the post-Newtonian parameter gamma in the Cassini experiment
Creators: name: Kopeikin, S. M.
name: Polnarev, A. G.
name: Schaefer, G.
name: Vlasov, I. Yu.
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The most precise test of the post-Newtonian gamma parameter in the solar system has been achieved in measurement of the frequency shift of radio waves to and from the Cassini spacecraft as they passed near the Sun. The test relies upon the JPL model of radiowave propagation that includes, but does not explicitly parametrize, the impact of the non-stationary component of the gravitational field of the Sun, generated by its barycentric orbital motion, on the Shapiro delay. This non-stationary gravitational field of the Sun is associated with the Lorentz transformation of the metric tensor and the affine connection from the heliocentric to the barycentric frame of the solar system and can be treated as gravimagnetic field. The gravimagnetic field perturbs the propagation of a radio wave and contributes to its frequency shift at the level up to 4 10^{-13} that may affect the precise measurement of the parameter gamma in the Cassini experiment to about one part in 10,000. Our analysis suggests that the translational gravimagnetic field of the Sun can be extracted from the Cassini data, and its effect is separable from the space curvature characterized by the parameter gamma.
description: 12 pages, 1 figure, accepted to Physical Letters A
Near-field Tracking with Large Antenna Arrays: Fundamental Limits and Practical Algorithms
Creators: name: Guerra, Anna
name: Guidi, Francesco
name: Dardari, Davide
name: Djuric, Petar M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Theory (cs.IT)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Applications towards 6G have brought a huge interest towards arrays with a high number of antennas and operating within the millimeter and sub-THz bandwidths for joint communication and localization. With such large arrays, the plane wave approximation is often not accurate because the system may operate in the near-field propagation region (Fresnel region) where the electromagnetic field wavefront is spherical. In this case, the curvature of arrival (CoA) is a measure of the spherical wavefront that can be used to infer the source position using only a single large array. In this paper, we study a near-field tracking problem for inferring the state (i.e., the position and velocity) of a moving source with an ad-hoc observation model that accounts for the phase profile of a large receiving array. For this tracking problem, we derive the posterior Cramér-Rao Lower Bound (P-CRLB) and show the effects when the source moves inside and outside the Fresnel region. We provide insights on how the loss of positioning information outside Fresnel comes from an increase of the ranging error rather than from inaccuracies of angular estimation. Then, we investigate the performance of different Bayesian tracking algorithms in the presence of model mismatches and abrupt trajectory changes. Our results demonstrate the feasibility and high accuracy for most of the tracking approaches without the need of wideband signals and of any synchronization scheme. signals and of any synchronization scheme.
Hierarchical structure of physical Yukawa couplings from matter field Kähler metric
Creators: name: Ishiguro, Keiya
name: Kobayashi, Tatsuo
name: Otsuka, Hajime
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the impacts of matter field Kähler metric on physical Yukawa couplings in string compactifications. Since the Kähler metric is non-trivial in general, the kinetic mixing of matter fields opens a new avenue for realizing a hierarchical structure of physical Yukawa couplings, even when holomorphic Yukawa couplings have the trivial structure. The hierarchical Yukawa couplings are demonstrated by couplings of pure untwisted modes on toroidal orbifolds and their resolutions in the context of heterotic string theory with standard embedding. Also, we study the hierarchical couplings among untwisted and twisted modes on resolved orbifolds.
description: 25 pages, 6 figures, v2: published version
Strong homotopy properads
Creators: name: Granåker, Johan
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Algebra (math.QA)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics

description: In this paper we prove that the structure of strong homotopy properad transfers over left homotopy inverses and give explicit formulae for the induced structure.
description: Final version, 19 pages
Collapse Geometry in Inhomogeneous FRW model
Creators: name: Chakraborty, Sanjukta
name: Bose, Akash
name: Chakraborty, Subenoy
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Collapsing process is studied in special type of inhomogeneous spherically symmetric space-time model (known as IFRW model), having no time-like Killing vector field. The matter field for collapse dynamics is considered to be perfect fluid with anisotropic pressure. The main issue of the present investigation is to examine whether the end state of the collapse to be a naked singularity or a black hole. Finally, null geodesics is studied near the singularity.
Transcription of a discussion of Verdena's upbringing and a story about a famine
Creators: name: Parker, Verdena
name: Spence, Justin
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: hup

description: Audio file VP-250621-05: Transcription of a recording in which Verdena discusses aspects of her upbringing and tells a story about an encounter with a strange creature during a famine, file VP-231009-01, from 4:26 to 8:14.
The blue stragglers formed via mass transfer in old open clusters
Creators: name: Tian, B.
name: Deng, L.
name: Han, Z.
name: Zhang, X. B.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this paper, we present the simulations for the primordial blue stragglers in the old open cluster M67 based on detailed modelling of the evolutionary processes. The principal aim is to discuss the contribution of mass transfer between the components of close binaries to the blue straggler population in M67. First, we followed the evolution of a binary of 1.4M$_\odot$+0.9M$_\odot$. The synthetic evolutionary track of the binary system revealed that a primordial blue straggler had a long lifetime in the observed blue straggler region of color-magnitude diagram. Second, a grid of models for close binary systems experiencing mass exchange were computed from 1Gyr to 6Gyr in order to account for primordial blue-straggler formation in a time sequence. Based on such a grid, Monte-Carlo simulations were applied for the old open cluster M67. Adopting appropriate orbital parameters, 4 primordial blue stragglers were predicted by our simulations. This was consistent with the observational fact that only a few blue stragglers in M67 were binaries with short orbital periods. An upper boundary of the primordial blue stragglers in the color-magnitude diagram (CMD) was defined and could be used to distinguish blue stragglers that were not formed via mass exchange. Using the grid of binary models, the orbital periods of the primordial BSs could be predicted. Compared with the observations, it is clear that the mechanism discussed in this work alone cannot fully predict the blue straggler population in M67. There must be several other processes also involved in the formation of the observed blue stragglers in M67.
description: 11 pages, 6 figures, A&A accepted