cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Evaluating thin flat surfaces
Creators: name: Khovanov, Mikhail
name: Qi, You
name: Rozansky, Lev
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Algebra (math.QA)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 18M05, 57K16, 57K20, 18M30, 15A63

description: We consider recognizable evaluations for a suitable category of oriented two-dimensional cobordisms with corners between finite unions of intervals. We call such cobordisms thin flat surfaces. An evaluation is given by a power series in two variables. Recognizable evaluations correspond to series that are ratios of a two-variable polynomial by the product of two one-variable polynomials, one for each variable. They are also in a bijection with isomorphism classes of commutative Frobenius algebras on two generators with a nondegenerate trace fixed. The latter algebras of dimension n correspond to points on the dual tautological bundle on the Hilbert scheme of n points on the affine plane, with a certain divisor removed from the bundle. A recognizable evaluation gives rise to a functor from the above cobordism category of thin flat surfaces to the category of finite-dimensional vector spaces. These functors may be non-monoidal in interesting cases. To a recognizable evaluation we also assign an analogue of the Deligne category and of its quotient by the ideal of negligible morphisms.
description: 38 pages, 21 figures
Η άμυνα του καθ’ ου κατά της αναγκαστικής εκτέλεσης ενδοκοινοτικών αποφάσεων στην Ελλάδα κατά τον Κανονισμό 1215/2012
Creators: name: Πάτκας-Τσαπέκος, Ανέστης Ιωάννη
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: Κανονισμός 1215/2012
Αναγκαστική εκτέλεση
Άμυνα οφειλέτη
Regulation 1215/2012
Enforcement
Debtor’s defense

description: Με τη θέση σε ισχύ του Κανονισμού 1215/2012 καταργείται ολοσχερώς η ενδιάμεση δι-αδικασία κήρυξης της εκτελεστότητας (exequatur) στο σύνολο των ενδοκοινοτικών αποφάσεων που εμπίπτουν στο πεδίο εφαρμογής του Κανονισμού. Ο Κανονισμός αποκτά έτσι ιδιαίτερη δικαιοπολιτική σημασία, αναγόμενη στη σύγκλιση των δικαιικών αντιλήψεων και τη διαρκώς ενδυναμούμενη αμοιβαία εμπιστοσύνη των κρατών-μελών στον τομέα της δικαστικής συνερ-γασίας. Συγχρόνως, όμως, με την κατάργηση αυτή, επαναπροσδιορίζεται πλήρως το υιοθετού-μενο από τον Κανονισμό σύστημα άμυνας του καθ’ ου υπό δύο επόψεις• αφενός ως προς τον παρεχόμενο μηχανισμό άμυνας και αφετέρου ως προς τις δυνάμενες να προβληθούν αντιρρήσεις κατά της εκτέλεσης του ενδοκοινοτικού τίτλου. Η παρούσα μελέτη αποσκοπεί στη διερεύνηση των ειδικότερων αυτών ζητημάτων· πρώτον, στην συστηματική παρουσίαση της ολοσχερούς απεμπόλησης της διαδικασίας κήρυξης της εκτελεστότητας και των υποκατάστατων εγγυήσεων που την συνοδεύουν· δεύτερον, στην ερμηνευτική προσέγγιση του εισαγόμενου συστήματος άμυνας του καθ’ ου η εκτέλεση, ενόψει της κατάργησης της διαδικασίας του exequatur· και τρίτον, στην οριοθέτηση του διευρυμένου -υπό το σύστημα του Κανονισμού- πεδίου άμυνας του καθ’ ου κατά της επισπευδόμενης δυνάμει ενδοκοινοτικού τίτλου εκτελεστικής διαδικασίας.
description: With the entry into force of the Regulation No 1215/2012 the exequatur procedure be-comes completely abolished in all fields concerning judgments coming under the scope of the Regulation. Thus, the Regulation acquires a special significance concerning the convergence of the law concepts and the perpetually expanding mutual trust between the member states in the field of judicial cooperation. At the same time, the complete abolition of exequatur fully re-defines the debtor’s defense system under two aspects, concerning, firtstly, the granted defense mechanism and, secondly, the objections that can be alleged against the enforcement. The pre-sent study aims to lighten up these particular aspects; firstly, the systematic presentation of the complete abolition of exequatur and the substitute guarantees that accompany this abolition; secondly, the interpretative approach of the debtor’s defense system, given the abolition of exe-quatur; and thirdly, the delimitation of the extended -under the system of the Regulation- de-fense field (objections) against the enforcement.
Conjugate gradient heatbath for ill-conditioned actions
Creators: name: Ceriotti, Michele
name: Bussi, Giovanni
name: Parrinello, Michele
Publisher: name: arXiv
Year: 2008
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We present a method for performing sampling from a Boltzmann distribution of an ill-conditioned quadratic action. This method is based on heatbath thermalization along a set of conjugate directions, generated via a conjugate-gradient procedure. The resulting scheme outperforms local updates for matrices with very high condition number, since it avoids the slowing down of modes with lower eigenvalue, and has some advantages over the global heatbath approach, compared to which it is more stable and allows for more freedom in devising case-specific optimizations.
Do Reservoir Computers Work Best at the Edge of Chaos?
Creators: name: Carroll, Thomas L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: It has been demonstrated that cellular automata had the highest computational capacity at the edge of chaos, the parameter at which their behavior transitioned from ordered to chaotic. This same concept has been applied to reservoir computers; a number of researchers have stated that the highest computational capacity for a reservoir computer is at the edge of chaos, although others have suggested that this rule is not universally true. Because many reservoir computers do not show chaotic behavior but merely become unstable, it is felt that a more accurate term for this instability transition is the "edge of stability"Here I find two examples where the computational capacity of a reservoir computer decreases as the edge of stability is approached; in one case, because generalized synchronization breaks down, and in the other case because the reservoir computer is a poor match to the problem being solved. The edge of stability as an optimal operating point for a reservoir computer is not in general true, although it may be true in some cases.
Ophiacantha anomala Sars 1872
Creators: name: Madeira, Patrícia
name: Kroh, Andreas
name: Cordeiro, Ricardo
name: De, António M.
name: Martins, Frias
name: Ávila, Sérgio P.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Echinodermata
Ophiuroidea
Ophiurida
Ophiacanthidae
Ophiacantha
Ophiacantha anomala

description: Erroneous— Ophiacantha anomala Sars, 1872   Reports for the Azores:
 Ophiacantha cuspidata Lyman, 1878 — Gage et al. 1983: 291; García-Diez et al. 2005: 49; Smirnov et al. 2014: 195–196.
 Type locality: Norway.
 See: Sars (1872: 12–15); Paterson (1985: 24–34, fig. 14, as Ophiacantha anomala; 41–42, fig. 18, as Ophiacantha cuspidata); St̂hr (2005: 551–552, figs. 4A–H); Martynov & Litvinova (2008: 96, figs. 7B–J).
 Occurrence: Atlantic, from the east coast of the USA to Greenland eastwards from Iceland and Scandinavia as far south as Ascension Island (Koehler 1914a, Mortensen 1933a, Paterson 1885).
 Depth: 140– 2,460 m (Paterson 1985).
 Habitat: soft to hard substrates (Lyman 1882, Koehler 1909).
 Larval stage: brooded within the gonads until postlarvae stage is reached (St̂hr 2005); adults are also known to be hermaphrodite (Mortensen 1936).
 Remarks: Gage et al. (1983) mentioned the presence of Ophiacantha cuspidata in an area ‘off Azores’ (a species recently found to be conspecific with the North Atlantic O. anomala; see Martynov & Litvinova 2008). Gage and co-authors were probably referring to Koehler (1909) who reported two specimens collected by Princesse Alice at a station located in the Mid-Atlantic Ridge, just outside the Azorean EEZ (sta 1420: 42°52’N– 42°53’N, 28°30’45”W, 2,460 m). García-Diez et al. (2005) also erroneously placed this station within the 200 miles radius surrounding the archipelago, and thus included this species in their review of the Azorean fauna. Regardless of the widespread distribution in the North Atlantic, no material belonging to either O. cuspidata or O. anomala was yet documented inside the Azorean EEZ.
description: Published as part of Madeira, Patrícia, Kroh, Andreas, Cordeiro, Ricardo, De, António M., Martins, Frias & Ávila, Sérgio P., 2019, The Echinoderm Fauna of the Azores (NE Atlantic Ocean), pp. 1-231 in Zootaxa 4639 (1) on pages 162-163, DOI: 10.11646/zootaxa.4639.1, http://zenodo.org/record/3342161
Μελέτη σκοπιμότητας δημιουργίας αποθήκης - κέντρου διανομής Νοτίου Ελλάδας εταιρίας παραγωγής ανθρακικού ασβεστίου στη Θεσσαλονίκη
Creators: name: Σαχταρόπουλος, Βασίλειος Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: Αποθήκη-Τοποθεσία
Στοιχεία κόστους
Warehouse
Location-cost

description: Σκοπός της εργασίας είναι η μελέτη της εφοδιαστικής αλυσίδας, εταιρίας παραγωγής ανθρακικού ασβεστίου και πιο συγκεκριμένα η έρευνα για την ανάγκη δημιουργίας αποθήκης στην περιοχή της Νότιας Ελλάδας. Για την υλοποίηση της πτυχιακής χρησιμοποιήθηκαν πραγματικά ιστορικά στοιχεία της εταιρίας. Αρχικά παρουσιάστηκε η βιβλιογραφία που βοήθησε στην λήψη σημαντικών αποφάσεων καθώς και η ενδελεχής μελέτη των στοιχείων που δόθηκαν από την εταιρία προκειμένου να βγουν ασφαλή συμπεράσματα για την εφοδιαστική της αλυσίδα. Στη συνέχεια υπολογίστηκαν και μελετήθηκαν όλοι εκείνοι οι παράγοντες και τα στοιχεία κόστους που παίζουν σημαντικό ρόλο στην απόφαση για την δημιουργία της νέας αποθήκης, όπως η επιλογή της θέσης της, ο τρόπος και το κόστος μεταφοράς των εμπορευμάτων καθώς και το μέγεθος και η διαμόρφωση της αποθήκης. Έπειτα υπολογίστηκε το συνολικό κόστος μεταφοράς των εμπορευμάτων στην αποθήκη καθώς και στους τελικούς πελάτες για κάθε μια από τις επιλεγόμενες περιοχές καθώς και το κόστος ενοικίασης και αγοράς αυτής. Οι υπολογισμοί αυτοί έγιναν για διάστημα 5 χρόνων, μεταβάλλοντας τη ζήτηση και εξετάστηκε κατά πόσο μια τέτοια επένδυση θα ήταν κερδοφόρα για την εταιρία. Τέλος εξάγονται σημαντικά συμπεράσματα, ενώ επιπλέον καταγράφονται και προτάσεις για περαιτέρω έρευνα.
description: The purpose of this dissertation is the study of the supply chain, of α company which produce calcium carbonate, and more specifically the research on the need for a new storage in the Southern region of Greece. For the implementation of the dissertation were used actual historical records of the company. Initially, was presented the literature review which helped to make important decisions as well as a thorough study of the information that was provided by the company to come out safe conclusions for our supply chain. Then were calculated and were studied all factors and cost elements that play an important role in the decisions for the creation of the new warehouse, including the selection of the location, the manner and the cost of the transportation of the goods and the size and the configuration of the warehouse. Afterwards was calculated the total cost of transportation of the goods to the warehouse and to the final customers for each of the selected sites and the rental and purchase costs. The calculations were made for a period of five years, changing demand and calculating whether such an investment would be profitable for the company. Finally were exported important conclusions, while also were recorded suggestions for further research.
Four-Dimensional Imaging of Lattice Dynamics using Inelastic Scattering
Creators: name: Rana, Navdeep
name: Roy, Aditya Prasad
name: Bansal, Dipanshu
name: Dixit, Gopal
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Time-resolved mapping of lattice dynamics in real- and momentum-space is essential to understand better several ubiquitous phenomena such as heat transport, displacive phase transition, thermal conductivity, and many more. In this regard, time-resolved diffraction and microscopy methods are employed to image the induced lattice dynamics within a pump-probe configuration. In this work, we demonstrate that inelastic scattering methods, with the aid of theoretical simulation, are competent to provide similar information as one could obtain from the time-resolved diffraction and imaging measurements. To illustrate the robustness of the proposed method, our simulated result of lattice dynamics in germanium is in excellent agreement with the time-resolved x-ray diffuse scattering measurement performed using x-ray free-electron laser. For a given inelastic scattering data in energy and momentum space, the proposed method is useful to image in-situ lattice dynamics under different environmental conditions of temperature, pressure, and magnetic field. Moreover, the technique will profoundly impact where time-resolved diffraction within the pump-probe setup is not feasible, for instance, in inelastic neutron scattering.
description: 20 pages, 6 figures
Moving between high-quality optima using multi-satisfiability characteristics in hard-to-solve Max3Sat instances
Creators: name: Piatek, J.
name: Przewozniczek, M. W.
name: Chicano, F.
name: Tinós, R.
Publisher: name: arXiv
Year: 2025
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Gray-box optimization proposes effective and efficient optimizers of general use. To this end, it leverages information about variable dependencies and the subfunction-based problem representation. These approaches were already shown effective by enabling \textit{tunnelling} between local optima even if these moves require the modification of many dependent variables. Tunnelling is useful in solving the maximum satisfiability problem (MaxSat), which can be reformulated to Max3Sat. Since many real-world problems can be brought to solving the MaxSat/Max3Sat instances, it is important to solve them effectively and efficiently. Therefore, we focus on Max3Sat instances for which tunnelling fails to introduce improving moves between locally optimal high-quality solutions and the region of globally optimal solutions. We analyze the features of such instances on the ground of phase transitions. Based on these observations, we propose manipulating clause-satisfiability characteristics that allow connecting high-quality solutions distant in the solution space. We utilize multi-satisfiability characteristics in the optimizer built from typical gray-box mechanisms. The experimental study shows that the proposed optimizer can solve those Max3Sat instances that are out of the grasp of state-of-the-art gray-box optimizers. At the same time, it remains effective for instances that have already been successfully solved by gray-box.
First results of the Instrumentation Line for the deep-sea ANTARES neutrino telescope
Creators: name: Aguilar, J. A.
name: Collaboration, ANTARES
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In 2005, the ANTARES Collaboration deployed and operated at a depth of 2500 m a so-called Mini Instrumentation Line equipped with Optical Modules (MILOM) at the ANTARES site. The various data acquired during the continuous operation from April to December 2005 of the MILOM confirm the satisfactory performance of the Optical Modules, their front-end electronics and readout system, as well as the calibration devices of the detector. The in-situ measurement of the Optical Module time response yields a resolution better than 0.5 ns. The performance of the acoustic positioning system, which enables the spatial reconstruction of the ANTARES detector with a precision of about 10 cm, is verified. These results demonstrate that with the full ANTARES neutrino telescope the design angular resolution of better than $0.3^\circ$ can be realistically achieved.
description: 18 pages, 12 figures, submitted to Astroparticle Physics
Οι προϋποθέσεις γέννησης της αξίωσης του εμπορικού αντιπροσώπου για αποζημίωση πελατείας
Creators: name: Λαμπριανίδου, Αγγελική Κωνσταντίνου
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: Εμπορικός αντιπρόσωπος
Αποζημίωση πελατείας
Λύση της σύμβασης
Commercial agent
Customer indemnity
Termination of the contract

description: Ένα από τα σημαντικότερα ζητήματα σε μια διαρκή εμπορική σύμβαση, όπως είναι η σύμβαση εμπορικής αντιπροσωπείας, είναι η λύση της και οι απορρέουσες εξ αυτής έννομες συνέπειες. Μια από αυτές είναι και η αξίωση του εμπορικού αντιπροσώπου να λάβει αποζημίωση πελατείας. Η ιδιόμορφη αυτή αξίωση του εμπορικού αντιπροσώπου εισήχθη στην εσωτερική έννομη τάξη με το άρθρο 9 του π.δ. 219/1991, κατ’ επιταγή της Οδηγίας 86/653/ΕΟΚ. Αντικείμενο της παρούσας διπλωματικής εργασίας είναι οι προϋποθέσεις γέννησης της αξίωσης του εμπορικού αντιπροσώπου για αποζημίωση πελατείας. Αρχικά γίνεται μια σύντομη παρουσίαση του θεσμού της αποζημίωσης πελατείας. Έπειτα, αναλύονται οι τέσσερις προϋποθέσεις που θα πρέπει να συντρέχουν σωρευτικά για τη γέννηση της αξίωσης και συγκεκριμένα η λύση της σύμβασης, η εισφορά νέων πελατών ή (και) η σημαντική προαγωγή των υποθέσεων με τους υπάρχοντες πελάτες κατά τη διάρκεια της σύμβασης, η διατήρηση ουσιαστικών ωφελειών για τον αντιπροσωπευόμενο μετά τη λύση της σύμβασης και ο δίκαιος χαρακτήρας της αποζημίωσης. Τέλος, αναλύονται οι περιπτώσεις που ο εμπορικός αντιπρόσωπος χάνει κατ’ εξαίρεση την εν λόγω αξίωσή του παρόλο που πληρούνται καταρχήν οι απαιτούμενες για τη γέννησή της προϋποθέσεις.
description: One of the major issues in a continuous commercial contract, such as the agency contract, is the termination and its arising legal consequences. One of them is the claim of a commercial agent to receive customer indemnity. This peculiar claim (of the agent) was introduced into national law by Article 9 of Presidential Decree 219/1991, by the order of Directive 86/653/ EEC. This thesis deals with the conditions of birth of the agent’s claim for customer indemnity. Firstly it starts with a brief presentation of the statute of customer indemnity. Then, follows the analysis of four conditions that must be fulfilled cumulatively for the birth of this claim, which are the termination of the contract, the contribution of new customers or (and) the significant advancement of business with existing customers during the contract, the maintenance of essential benefits for the principal after the termination of the contract and finally, the fairness of the indemnity. In the end are being analyzed the cases where the agent, exceptionally, loses this claim, although the necessary conditions for the birth of rule are filled.
Three-loop corrections to the lightest Higgs scalar boson mass in supersymmetry
Creators: name: Martin, Stephen P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: I evaluate the largest three-loop corrections to the mass of the lightest Higgs scalar boson in the Minimal Supersymmetric Standard Model in a mass-independent renormalization scheme, using effective field theory and renormalization group methods. The contributions found here are those that depend only on strong and Yukawa interactions and on the leading and next-to-leading logarithms of the ratio of a typical superpartner mass scale to the top quark mass. The approximation assumes that all superpartners and the other Higgs bosons can be treated as much heavier than the top quark, but does not assume their degeneracy. I also discuss the consistent addition of the three-loop corrections to a complete two-loop calculation.
description: 9 pages
Selected topics of quantum computing for nuclear physics
Creators: name: Zhang, Dan-Bo
name: Xing, Hongxi
name: Yan, Hui
name: Wang, Enke
name: Zhu, Shi-Liang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Nuclear physics, whose underling theory is described by quantum gauge field coupled with matter, is fundamentally important and yet is formidably challenge for simulation with classical computers. Quantum computing provides a perhaps transformative approach for studying and understanding nuclear physics. With rapid scaling-up of quantum processors as well as advances on quantum algorithms, the digital quantum simulation approach for simulating quantum gauge fields and nuclear physics has gained lots of attentions. In this review, we aim to summarize recent efforts on solving nuclear physics with quantum computers. We first discuss a formulation of nuclear physics in the language of quantum computing. In particular, we review how quantum gauge fields~(both Abelian and non-Abelian) and its coupling to matter field can be mapped and studied on a quantum computer. We then introduce related quantum algorithms for solving static properties and real-time evolution for quantum systems, and show their applications for a broad range of problems in nuclear physics, including simulation of lattice gauge field, solving nucleon and nuclear structure, quantum advantage for simulating scattering in quantum field theory, non-equilibrium dynamics, and so on. Finally, a short outlook on future work is given.
description: review, 10 pages, comments are welcome
Polaris: Mass and Multiplicity
Creators: name: Evans, Nancy Remage
name: Schaefer, Gail
name: Bond, Howard E.
name: Nelan, Edmund
name: Bono, Giuseppe
name: Karovska, Margarita
name: Wolk, Scott
name: Sasselov, Dimitar
name: Guinan, Edward
name: Engle, Scott
name: Schlegel, Eric
name: Mason, Brian
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Polaris, the nearest and brightest classical Cepheid, is a member of at least a triple system. It has a wide ($18''$) physical companion, the F-type dwarf Polaris B. Polaris itself is a single-lined spectroscopic binary with an orbital period of 30 years (Kamper, 1996, JRASC, 90, 140). By combining {\it Hipparcos} measurements of the instantaneous proper motion with long-term measurements and the Kamper radial-velocity orbit, Wielen et al. (2000, A&A, 360, 399) have predicted the astrometric orbit of the close companion. Using the {\it Hubble Space Telescope} and the Advanced Camera for Surveys' High-Resolution Channel with an ultraviolet (F220W) filter, we have now directly detected the close companion. Based on the Wielen et al. orbit, the {\it Hipparcos} parallax, and our measurement of the separation ($0.176''$ $\pm$ $0.002''$), we find a preliminary mass of 5.0 $\pm$ 1.5 M$_{\odot}$ for the Cepheid and 1.38 $\pm$ 0.61 M$_{\odot}$ for the close companion. These values will be refined by additional {\it HST} observations scheduled for the next 3 years. We have also obtained a {\it Chandra} ACIS-I image of the Polaris field. Two distant companions C and D are not X-rays sources and hence are not young enough to be physical companions of the Cepheid. There is one additional stellar X-ray source in the field, located $253''$ from Polaris A, which is a possible companion. Further investigation of such a distant companion is valuable to confirm the full extent of the system.
description: submitted to Conference Proceedings of IAU Symp. 240
Ophiacantha brevispina Koehler 1898
Creators: name: Madeira, Patrícia
name: Kroh, Andreas
name: Cordeiro, Ricardo
name: De, António M.
name: Martins, Frias
name: Ávila, Sérgio P.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Echinodermata
Ophiuroidea
Ophiurida
Ophiacanthidae
Ophiacantha
Ophiacantha brevispina

description: Erroneous— Ophiacantha brevispina Koehler, 1898   Reports for the Azores:
 Ophiacantha brevispina Koehler, 1898 — Bartsch 1987: 120–121, figs. 16, 17.
 Type locality: Bay of Biscay (46°27’00″N, 4°09’46″W).
 See: Koehler (1898: 56–57, pl. 8, figs. 43, pl. 9, fig. 44).
 Occurrence: Northeast Atlantic, from the Bay of Biscay to Dakar in Senegal (Koehler 1898, Bartsch 1987), including Madeira (Jesus & Abreu 1998).
 Depth: 90–417 m (Bartsch 1987).
 Habitat: soft sediment, sand to muddy sand (Cadenat 1938).
 Remarks: few specimens of Ophiacantha brevispina have been found since Koehler (1898) described this species. Cadenat (1938) identified numerous animals from an area that the author referred as Cape Blanc and Cape Verde as Ophiacantha sp., though none of the specimens came from the later archipelago but from Dakar. Regardless Cadenat remarked that these brittle stars were quite close to what Koehler described as Ophiacantha brevispina. Later, Bartsch (1987) recorded O. brevispina from the same region as the previous author. Bartsch erroneously listed the Azores under geographical range of this species (citing Cadenat 1938), mistaking the Cape Verde Islands with the Azores.
description: Published as part of Madeira, Patrícia, Kroh, Andreas, Cordeiro, Ricardo, De, António M., Martins, Frias & Ávila, Sérgio P., 2019, The Echinoderm Fauna of the Azores (NE Atlantic Ocean), pp. 1-231 in Zootaxa 4639 (1) on page 163, DOI: 10.11646/zootaxa.4639.1, http://zenodo.org/record/3342161
Potentials for which the Radial Schrödinger Equation can be solved
Creators: name: Chadan, Khosrow
name: Kobayashi, Reido
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In a previous paper$^1$, submitted to Journal of Physics A -- we presented an infinite class of potentials for which the radial Schrödinger equation at zero energy can be solved explicitely. For part of them, the angular momentum must be zero, but for the other part (also infinite), one can have any angular momentum. In the present paper, we study a simple subclass (also infinite) of the whole class for which the solution of the Schrödinger equation is simpler than in the general case. This subclass is obtained by combining another approach together with the general approach of the previous paper. Once this is achieved, one can then see that one can in fact combine the two approaches in full generality, and obtain a much larger class of potentials than the class found in ref. $^1$ We mention here that our results are explicit, and when exhibited, one can check in a straightforward manner their validity.
Αριστοφάνους «Βάτραχοι»: η θρησκεία ως «σύστημα» κατά τη διάρκεια των κλασικών χρόνων
Creators: name: Χριστάκου, Μαρία Αθανασίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: Αριστοφάνης
Θρησκεία
Σύστημα
Κλασικοί χρόνοι
Aristophanes
Religion
System
Classical Period

description: Αφορμώμενοι από την κωμωδία Βάτραχοι του Αριστοφάνη και μελετώντας στοιχειωδώς ορισμένα από τα κυριότερα ευρήματα στον αρχαιολογικό χώρο της Ελευσίνας, στην προκείμενη εργασία προσπαθήσαμε να ανασυνθέσουμε την εικόνα των Ελευσίνιων Μυστηρίων κατά τη διάρκεια της κλασικής εποχής. Η συγκεκριμένη εργασία χωρίζεται σε τρία κύρια κεφάλαια. Στο πρώτο κεφάλαιο σκιαγραφείται ο βίος του κωμωδιογράφου Αριστοφάνη, καθώς και τα βασικά χαρακτηριστικά και η υπόθεση της κωμωδίας Βάτραχοι. Το κύριο μήνυμα των Βατράχων είναι η επιστροφή στις παραδοσιακές αξίες και από τη στιγμή που τα Ελευσίνια Μυστήρια αποτελούν ένα συγκεκριμένο παραδοσιακό τρόπο σκέψης, μια συστηματική τάξη ενεργειών, η συνέχιση τέλεσης αυτών των θρησκευτικών πρακτικών θα συντελέσει στη σωτηρία της πόλης των Αθηνών και στη διατήρηση του κλίματος ενότητας μετά τον πόλεμο, ώστε να παραμείνει ο δεσμός μεταξύ των Αθηναίων ζωντανός. Τα Ελευσίνια Μυστήρια και η επιλογή του Αισχύλου από τον Διόνυσο ενισχύουν την πρόταση του Αριστοφάνη για τη σωτηρία της Αθήνας. Το δεύτερο κεφάλαιο αφορά αποκλειστικά τα Ελευσίνια Μυστήρια, Μικρά και Μεγάλα. Αυτό που πρέπει να τονιστεί είναι ότι η Ελευσινιακή παράδοση ήταν κυρίως προφορική, για αυτό ακριβώς τον λόγο αρκούμαστε στην περιγραφή του τυπικού τους και των εξωτερικών τους γνωρισμάτων. Το τρίτο κεφάλαιο ερευνά τη σχέση των Βατράχων με τις τελετουργίες διάβασης, δηλαδή τη μετάβαση από μία κατάσταση σε μια άλλη, σύμφωνα με τον ανθρωπολόγο Arnold Van Gennep, καθώς και τον ιδιαίτερο ρόλο του Διόνυσου στη συγκεκριμένη κωμωδία.
description: Studying Aristophanes’ Frogs and some of the main findings of the archaeological site of Eleusis, in this thesis, we tried to reconstruct the image of the Eleusinian Mysteries during the classical era. This thesis is divided into three main chapters. The first chapter outlines the life of writer Aristophanes, the key features and the plot of Frogs. The main message of Frogs is the return to the traditional values. Eleusinian Mysteries are a certain traditional way of thinking, a systematic way of actions, and the continuation of these religious practices will contribute to the salvation of the city of Athens and will keep the bond of the Athenians alive. The Eleusinian Mysteries and the choice of Aeschylus by Dionysus supports the suggestion of Aristophanes for the salvation of Athens. The second chapter focuses exclusively on the Eleusinian Mysteries, Lesser and Greater. What must be emphasized is that the Eleusinian tradition was largely oral and we refer only to the description of the standard and external characteristics of the mysteries. The third chapter is concerned with the relationship between Frogs and rites of passage, the transition from one status to another, according to the anthropologist Arnold Van Gennep, and the particular role of Dionysus.
Graduate recital
Creators: name: Zhuo, Rui-Shi
Publisher: name: University of British Columbia
Year: 2009

description: This is a compilation of the music performed at the graduation recital of Rui-Shi Zhuo on January 28, 1995, at 8:00 p.m. in the U.B.C. Recital Hall. There were five pieces performed that evening including Fixation for Woodwind Octet, written in 1992. Three Sketches of Chinese Countryside, written in 1991. String Quartet No.l [Qi] [Shen] [Xing], was written in 1993. Both works Variation On G and Dao Ban for Pi-Pa and Chamber Ensemble were written in 1994, especially the Dao Ban was written for Vancouver Symphony Orchestra and co-commissioned by Vancouver New Music Society and Asia Pacific Foundation. The Dao Ban premiered on January 19th, 1994. A cassette copy of the recital is available with this book.
Η επίδραση των Μέσων Μαζικής Ενημέρωσης στη ζωή των Ελλήνων της Γερμανίας
Creators: name: Χριστοφορίδου, Ελευθερία Αθανασίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: Μέσα Μαζικής Ενημέρωσης
Επίδραση
Έλληνες
Γερμανία
Mass Media
Influence
Greeks
Germany

description: Παρά το γεγονός ότι τα τελευταία χρόνια έχει υπάρξει ένα αυξημένο ενδιαφέρον για την φύση των Μέσων Μαζικής Ενημέρωσης και της συμπεριφοράς του κοινού, μία εμπεριστατωμένη και θεμελιωμένη κατανόηση για την επίδραση των Μέσων Μαζικής Ενημέρωσης στη ζωή των Ελλήνων της Γερμανίας είναι ελλιπής έως και ανύπαρκτη. Ο σκοπός αυτής της εργασίας κατευθύνεται προς αυτή την κατανόηση. Στα κεφάλαια που ακολουθούν, αναπτύσσεται ένα θεωρητικό πλαίσιο για την ανάλυση της επίδρασης των Μέσων Μαζικής Ενημέρωσης. Στη συνέχεια, διερευνάται αυτή η επίδραση των Μέσων στη ζωή των Ελλήνων της Γερμανίας. Τα δεδομένα της έρευνας για την επίδραση των Μέσων Μαζικής Ενημέρωσης στη ζωή των Ελλήνων της Γερμανίας προήλθαν από προσωπικές συνεντεύξεις μέσω ερωτηματολογίων. Η παρούσα εργασία είναι χωρισμένη σε τρία μέρη. Το πρώτο μέρος (κεφάλαιο 1-3) αποτελεί την εισαγωγή του ερευνητικού θέματος. Το δεύτερο μέρος (κεφάλαιο 4-5) περιλαμβάνει την περιγραφή της μεθοδολογίας που εφαρμόστηκε και την παρουσίαση και τη συζήτηση των ευρημάτων. Το τρίτο μέρος (κεφάλαιο 6), το οπoίο είναι και το τελευταίο, περιλαμβάνει τα συμπεράσματα της έρευνας και επικεντρώνεται στην ανάλυση της επίδρασης των Μέσων στη ζωή των Ελλήνων της Γερμανίας. Επιπλέον, στο τρίτο μέρος παρουσιάζονται οι περιορισμοί της έρευνας και πεδία για μελλοντική έρευνα.
description: Although in recent years there has been an increased interest in the nature of the media and public behavior, a thorough and grounded understanding of the effect of media in the lives of the Greeks in Germany is inadequate or non-existent. The purpose of this work is directed to this understanding. In the chapters that follow, a theoretical framework for analyzing the impact of the media is developed. Then, the influence of the media in the lives of the Greeks in Germany is examined and analysed. The survey data on the influence of media in the lives of Greeks in Germany derive from personal interviews using questionnaires. This paper is divided into three parts. The first part (chapter 1-3) is the introduction of the research topic. The second part (chapter 4-5) includes a description of the methodology employed and the presentation and discussion of findings. The third part (chapter 6), which is the last, contains the findings of research and analysis is focused on the influence of media in the lives of Greeks in Germany. Moreover, the third part presents the research limitations and areas for future research.
A Note on the String Dual of N=1 SQCD-like Theories
Creators: name: Casero, Roberto
name: Paredes, Angel
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this note we describe how N=1 SQCD-like theories with a large number of flavors can be given a dual description in terms of a string background containing a large number of additional D5-branes. The dual geometries account for the backreaction of the additional branes: they depend on the ratio between the number of flavors and colors of the gauge theory. This note is based on hep-th/0602027. We present here also a new set of solutions, which are not included in the original paper.
description: 10 pages, 2 figures. Contribution to the proceedings of the RTN project "Constituents, Fundamental Forces and Symmetries of the Universe" conference in Naples, October 9 - 13, 2006
High-temperature topological superconductivity in twisted double layer copper oxides
Creators: name: Can, Oguzhan
name: Tummuru, Tarun
name: Day, Ryan P.
name: Elfimov, Ilya
name: Damascelli, Andrea
name: Franz, Marcel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A great variety of novel phenomena occur when two-dimensional materials, such as graphene or transition metal dichalcogenides, are assembled into bilayers with a twist between individual layers. As a new application of this paradigm, we consider structures composed of two monolayer-thin $d$-wave superconductors with a twist angle $θ$ that can be realized by mechanically exfoliating van der Waals-bonded high-$T_c$ copper oxide materials, such as Bi$_2$Sr$_2$CaCu$_2$O$_{8+δ}$. On the basis of symmetry arguments and detailed microscopic modelling, we predict that for a range of twist angles in the vicinity of $45^{\rm o}$, such bilayers form a robust, fully gapped topological phase with spontaneously broken time-reversal symmetry and protected chiral Majorana edge modes. When $θ\approx 45^{\rm o}$, the topological phase sets in at temperatures close to the bulk $T_c\simeq 90$ K, thus furnishing a long sought realization of a true high-temperature topological superconductor.
description: 15 pages, 13 figures
On the weak limits of smooth maps for the Dirichlet energy between manifolds
Creators: name: Hang, Fengbo
Publisher: name: arXiv
Year: 2006
Subjects: subject: Analysis of PDEs (math.AP)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 58D15

description: We identify all the weak sequential limits of smooth maps in $W^{1,2}(M,N)$. In particular, this implies a necessary and sufficient topological condition for smooth maps to be weakly sequentially dense in $W^{1,2}(M,N)$.
description: 7 pages
Ophiomitrella clavigera
Creators: name: Madeira, Patrícia
name: Kroh, Andreas
name: Cordeiro, Ricardo
name: De, António M.
name: Martins, Frias
name: Ávila, Sérgio P.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Echinodermata
Ophiuroidea
Ophiurida
Ophiacanthidae
Ophiomitrella
Ophiomitrella clavigera

description: Erroneous— Ophiomitrella clavigera (Ljungman, 1865)   Reports for the Azores:
 non Ophiomitrella clavigera (Ljungman, 1864) — Mortensen 1927a: 186–187, fig. 103 [based on invalid synonymy]; Marques 1980: 102 [based on Mortensen 1927a]; Paterson 1985: 71, fig. 28 [based on Mortensen 1927a]; Harvey et al. 1988: 170 [based on Paterson 1985]; García-Diez et al. 2005: 49 [based on Mortensen 1927a].
 Type locality: Norway.
 See: Mortensen (1933a: 39–41, fig. 23); Paterson (1985).
 Occurrence: North Atlantic, in the west from the Northern American coasts to Greenland and in the east from Iceland and Scandinavia to the British waters (Mortensen 1933a, Paterson 1985).
 Depth: 166– 1,952 m (Paterson 1985, Harvey et al. 1988).
 Habitat: coral epibiont and also known from muddy sand (Farran 1913).
 Larval stage: brooding, protandric hermaphrodite (Mortensen 1920).
 Remarks: Ophiomitrella clavigera was included in the Azorean fauna based on the erroneous assumption that O. cordifera was conspecific with this species (for details see remarks under Ophiomitrella cordifera).
description: Published as part of Madeira, Patrícia, Kroh, Andreas, Cordeiro, Ricardo, De, António M., Martins, Frias & Ávila, Sérgio P., 2019, The Echinoderm Fauna of the Azores (NE Atlantic Ocean), pp. 1-231 in Zootaxa 4639 (1) on page 164, DOI: 10.11646/zootaxa.4639.1, http://zenodo.org/record/3342161
Gaia DR 2 data and the evolutionary status of eight high velocity hot post-AGB candidates
Creators: name: Parthasarathy, Mudumba
name: Matsuno, Tadafumi
name: Aoki, Wako
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: From Gaia DR 2 data of eight high velocity hot post-AGB candidates LS 3593, LSE 148, LS 5107, HD 172324, HD 214539, LS IV -12 111, LS III +52 24, and LS 3099, we found that six of them have accurate parallaxes which made it possible to derive their distances, absolute visual magnitudes (M_V) and luminosity (log L/L_sun). Except LS 5107 all the remaining seven stars have accurate effective temperature (T_eff) in the literature. Some of these stars are metal-poor and some of them do not have circumstellar dust shells. In the past the distances of some stars were estimated to be 6~kpc which we find it to be incorrect. The accurate Gaia DR2 parallaxes show that they are relatively nearby post-AGB stars. When compared with post-AGB evolutionary tracks we find their initial masses in the range of 1M_sun to 2M_sun. We find the luminosity of LSE 148 to be significantly lower than that of post-AGB stars, suggesting that this is a post-horizontal branch star or post-early-AGB star. LS 3593 and LS 5107 are new high velocity hot post-AGB stars from Gaia DR2.
description: 10 pages, 1 figure, 3 tables, PASJ, in press
Σύμβαση ανταποδοτικής χορηγίας (sponsoring)
Creators: name: Γρηγοριάδου, Ευσεβία Γρηγορίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: Χορηγία
Πολιτιστική Χορηγία
Σπόνσορινγκ
Sponsorship
Cultural Sponsorship
Sponsoring

description: Αντικείμενο της παρούσας διπλωματικής εργασίας αποτελεί ο θεσμός της χορηγίας και συγκεκριμένα η συνηθέστερη μορφή εμφάνισής της στις συναλλαγές, δηλαδή η σύμβαση ανταποδοτικής χορηγίας (sponsoring). Στο πλαίσιο αυτό και κατόπιν μιας σύντομης ιστορικής αναδρομής στο θεσμό της χορηγίας, παρατίθεται ο ορισμός της ανταποδοτικής χορηγίας (sponsoring) και η εννοιολογική της διάκριση από συναφείς θεσμούς. Επιπλέον, αναφέρονται τα κριτήρια και οι σύμφωνα με αυτά εμφανιζόμενες στην πράξη μορφές sponsoring. Περαιτέρω διερευνάται το ζήτημα της νομικής φύσης της σύμβασης sponsoring και ειδικότερα η προβληματική της ως αρρύθμιστης στο νόμο – τουλάχιστον στη γενική της μορφή- σύμβασης καθώς και το περιεχόμενο των εκατέρωθεν δικαιωμάτων και υποχρεώσεων των συμβαλλομένων μερών. Ειδική μνεία γίνεται στις συνηθέστερες ρήτρες που απαντώνται σε μια σύμβαση sponsoring. Εκτενής αναφορά γίνεται στα επιμέρους είδη ανταποδοτικής χορηγίας (sponsoring) και συγκεκριμένα στο αθλητικό, κοινωνικό, περιβαλλοντικό και ραδιοτηλεοπτικό Sponsoring συμπεριλαμβανομένου και του νομοθετικού πλαισίου που διέπει το τελευταίο σε εθνικό και ευρωπαϊκό επίπεδο. Τέλος, αντικείμενο ιδιαίτερης ανάλυσης αποτελεί η σύμβαση πολιτιστικής χορηγίας, η οποία αποτελεί επί της παρούσης τη μοναδική ρυθμισμένη στο νόμο σύμβαση χορηγίας (ν. 3525/2007).
description: Aim of this thesis is the institution of sponsorship and specifically its form that most frequently appears in transactions, ie the reciprocal sponsorship agreement (sponsoring). In this context and after a brief historical background to the institution of sponsorship, the definition of reciprocal sponsorship agreement (sponsoring) and its conceptual distinction from relevant institutions are stated. Furthermore the criteria and the according to these emerging in practice forms of sponsoring, are mentioned. Further investigated is the issue of the legal nature of sponsoring contract and particularly its problematic as an unregulated in law – at least in its general form - contract as well as the reciprocal rights and obligations of the parties. Specific reference is made to the most common terms found in a sponsoring contract. Extensive reference is made to the various forms of reciprocal sponsorship agreement (sponsoring) and particularly to sports, social, environmental and broadcast sponsoring along with the legislative framework governing the latter at national and European level. Finally, special analysis is exposed as far as the cultural sponsorship contract is concerned, since it is at present the only regulated in the law sponsorship contract ( N. 3525/2007).
Ophiomusium africanum Koehler 1909
Creators: name: Madeira, Patrícia
name: Kroh, Andreas
name: Cordeiro, Ricardo
name: De, António M.
name: Martins, Frias
name: Ávila, Sérgio P.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Echinodermata
Ophiuroidea
Ophiurida
Ophiolepididae
Ophiomusium
Ophiomusium africanum

description: Erroneous— Ophiomusium africanum Koehler, 1909   Reports for the Azores:
 Ophiomusium africanum Koehler, 1909 — Paterson 1985: 147, fig. 58.
 Type locality: Cape Verde.
 See: Koehler (1909: 159–160, pl. 1, fig. 10, pl. 29, figs. 5–6).
 Occurrence: known only from the type material collected in archipelago of Cape Verde.
 Depth: 219 m.
 Habitat: sand and coralline algae.
 Remarks: Ophiomusium africanum is known only from type specimen described by Koehler (1909) and collected by Princesse Alice in Cape Verde. Paterson (1985) comment that this species ‘was only recorded from the Azores’ is clearly a mistake.
description: Published as part of Madeira, Patrícia, Kroh, Andreas, Cordeiro, Ricardo, De, António M., Martins, Frias & Ávila, Sérgio P., 2019, The Echinoderm Fauna of the Azores (NE Atlantic Ocean), pp. 1-231 in Zootaxa 4639 (1) on page 164, DOI: 10.11646/zootaxa.4639.1, http://zenodo.org/record/3342161
Short effective intervals containing primes in arithmetic progressions and the seven cubes problem
Creators: name: Kadiri, Habiba
Publisher: name: arXiv
Year: 2020
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11M26, 11P05, 11N36, 11N13

description: Let $q\ge 3$ be a non-exceptional modulus $q\ge3$, and let $a$ be a positive integer coprime with $q$. For any $ε>0$, there exists $α>0$ (computable), such that for all $x\ge α(\log q)^2$, the interval $\left[ e^x,e^{x+ε}\right]$ contains a prime $p$ in the arithmetic progression $a \bmod q$. This gives the bound for the least prime in this arithmetic progression: $P(a,q) \le e^{α(\log q)^2}$. For instance for all $q\ge 10^{30}$, $P(a,q) \le e^{4.401(\log q)^2}$. Finally, we apply this result to establish that every integer larger than $e^{71\,000}$ is a sum of seven cubes.
Luscher's mu-term and finite volume bootstrap principle for scattering states and form factors
Creators: name: Pozsgay, B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the leading order finite size correction (Luscher's mu-term) associated to moving one-particle states, arbitrary scattering states and finite volume form factors in 1+1 dimensional integrable models. Our method is based on the idea that the mu-term is intimately connected to the inner structure of the particles, ie. their composition under the bootstrap program. We use an appropriate analytic continuation of the Bethe-Yang equations to quantize bound states in finite volume and obtain the leading mu-term (associated to symmetric particle fusions) by calculating the deviations from the predictions of the ordinary Bethe-Yang quantization. Our results are compared to numerical data of the E8 scattering theory obtained by truncated fermionic space approach. As a by-product it is shown that the bound state quantization does not only yield the correct mu-term, but also provides the sum over a subset of higher order corrections as well.
description: 21 pages, 35 eps figures, LaTeX2e file
Influence of Bottom Topography on Long Water Waves
Creators: name: Chazel, Florent
Publisher: name: arXiv
Year: 2007
Subjects: subject: Analysis of PDEs (math.AP)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 76B15, 35L55, 35C20, 35Q35

description: We focus here on the water waves problem for uneven bottoms in the long-wave regime, on an unbounded two or three-dimensional domain. In order to derive asymptotic models for this problem, we consider two different regimes of bottom topography, one for small variations in amplitude, and one for strong variations. Starting from the Zakharov formulation of this problem, we rigorously compute the asymptotics expansion of the involved Dirichlet-Neumann operator. then, following the global strategy introduced by Bona, Colin and Lannes, new symetric asymptotic models are derived for each regime of bottom topography. Solutions of these systems are proved to give good approximations of solutions of the water waves problem. These results hold for solutions that evanesce at infinity as well as for spatially periodic ones.