cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Memory Models for Incremental Learning Architectures
Creators: name: Losing, Viktor
Publisher: name: Universität Bielefeld
Year: 2019
Subjects: subject: 000

description: Technological advancement leads constantly to an exponential growth of generated data in basically every domain, drastically increasing the burden of data storage and maintenance. Most of the data is instantaneously extracted and available in form of endless streams that contain the most current information. Machine learning methods constitute one fundamental way of processing such data in an automatic way, as they generate models that capture the processes behind the data. They are omnipresent in our everyday life as their applications include personalized advertising, recommendations, fraud detection, surveillance, credit ratings, high-speed trading and smart-home devices. Thereby, batch learning, denoting the offline construction of a static model based on large datasets, is the predominant scheme. However, it is increasingly unfit to deal with the accumulating masses of data in given time and in particularly its static nature cannot handle changing patterns. In contrast, incremental learning constitutes one attractive alternative that is a very natural fit for the current demands. Its dynamic adaptation allows continuous processing of data streams, without the necessity to store all data from the past, and results in always up-to-date models, even able to perform in non-stationary environments. In this thesis, we will tackle crucial research questions in the domain of incremental learning by contributing new algorithms or significantly extending existing ones. Thereby, we consider stationary and non-stationary environments and present multiple real-world applications that showcase merits of the methods as well as their versatility. The main contributions are the following: One novel approach that addresses the question of how to extend a model for prototype-based algorithms based on cost minimization. We propose local split-time prediction for incremental decision trees to mitigate the trade-off between adaptation speed versus model complexity and run time. An extensive survey of the strengths and weaknesses of state-of-the-art methods that provides guidance for choosing a suitable algorithm for a given task. One new approach to extract valuable information about the type of change in a dataset. We contribute a biologically inspired architecture, able to handle different types of drift using dedicated memories that are kept consistent. Application of the novel methods within three diverse real-world tasks, highlighting their robustness and versatility. Investigation of personalized online models in the context of two real-world applications.
Analytic Density of States in the Abrikosov-Gorkov Theory
Creators: name: Srivastava, R. V. A.
name: Teizer, W.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Since the early 1960s, Abrikosov-Gorkov theory has been used to describe superconductors with paramagnetic impurities. Interestingly, the density of states resulting from the theoretical framework has to date only been known approximately, as a numeric solution of a complex polynomial. Here we introduce an exact analytic solution for the density of states of a superconductor with paramagnetic impurities. The solution is valid in the whole regime of Abrikosov-Gorkov theory; both where there is an energy gap and gapless. While of fundamental interest, we argue that this solution also has computational benefits in the evaluation of integrals for tunneling conductances and allows for an analytic description of materials with densities of states that are modeled from the basic Abrikosov-Gorkov density of states.
description: 5 pages, 1 figure
title: Diritto e religione in Italia. Principi e temi
Creators: name: Benigni, Rita
Publisher: name: Roma TrE-Press
Year: 2021

description: Il rapporto tra diritto e religione ha contrassegnato l’evoluzione culturale e ordinamentale dell’Europa e oggi è parte integrante delle sfide culturali e giuridiche poste in Italia, come in altri paesi, dalla crescita del pluralismo religioso e culturale. Dopo avere ripercorso le svolte storico-ordinamentali maturate in Italia a partire dall’Ottocento, il volume si sofferma sull’attuale disciplina del fenomeno religioso nell’ordinamento italiano, approfondendo alcuni profili della libertà religiosa, sia individuale che collettiva, e alternando riferimenti a temi classici con riferimenti a temi emergenti a seguito delle dinamiche pluralistiche in atto.
Quantum tasks require islands on the brane
Creators: name: May, Alex
name: Wakeham, David
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In recent work, it was argued that quantum computations with inputs and outputs distributed in spacetime, or quantum tasks, impose constraints on entanglement in holographic theories. The resulting constraint was named the connected wedge theorem and can verified by a direct bulk proof using focusing arguments in general relativity. In this article we extend this work to the context of AdS/BCFT, where an end-of-the-world brane is present in the bulk. By considering quantum tasks which exploit information localized to the brane, we find a new connected wedge theorem. We apply this theorem to brane models of black holes, where it relates the formation of islands in the Ryu-Takayanagi formula to causal features of the ambient spacetime. In particular, we find that if the black hole interior is causally connected to the radiation system through the ambient spacetime, then an island forms. For constant tension branes in pure AdS the converse also holds.
description: v4: typo fixes
Extension of Lipschitz Functions Defined on Metric Subspaces of Homogeneous Type
Creators: name: Brudnyi, A.
name: Brudnyi, Yu.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Functional Analysis (math.FA)
subject: Metric Geometry (math.MG)
subject: FOS: Mathematics
subject: Primary 26B35, Secondary 54E35, 46B15

description: If a metric subspace $M^{o}$ of an arbitrary metric space $M$ carries a doubling measure $μ$, then there is a simultaneous linear extension of all Lipschitz functions on $M^{o}$ ranged in a Banach space to those on $M$. Moreover, the norm of this linear operator is controlled by logarithm of the doubling constant of $μ$.
description: 12 pages
The Influences of Outflow on the Dynamics of Inflow
Creators: name: Xie, Fu-Guo
name: Yuan, Feng
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Both numerical simulations and observations indicate that in an advection-dominated accretion flow most of the accretion material supplied at the outer boundary will not reach the inner boundary. Rather, they are lost via outflow. Previously, the influence of outflow on the dynamics of inflow is taken into account only by adopting a radius-dependent mass accretion rate $\dot{M}=\dot{M}_0 (r/r_{\rm out})^s$ with $s>0$. In this paper, based on a 1.5 dimensional description to the accretion flow, we investigate this problem in more detail by considering the interchange of mass, radial and azimuthal momentum, and the energy between the outflow and inflow. The physical quantities of the outflow is parameterized based on our current understandings to the properties of outflow mainly from numerical simulations of accretion flows. Our results indicate that under reasonable assumptions to the properties of outflow, the main influence of outflow has been properly included by adopting $\dot{M}=\dot{M}_0 (r/r_{\rm out})^s$.
description: 16 pages, 5 figures. accepted for publication in ApJ
Emerging Adult Justice in Illinois: Towards an Age-Appropriate Approach
Creators: name: Perker, Selen Siringil
name: Chester, Lael E. H.
name: Schiraldi, Vincent N.
Publisher: name: Columbia University
Year: 2019
Subjects: Criminal justice, Administration of
Young adults
Young adults--Legal status, laws, etc.
Youth--Legal status, laws, etc.

description: This report examines the implications of Illinois’ automatic prosecution of all young people ages 18 and over in its adult criminal justice system in the same manner as it prosecutes and sentences 40- or 50-year-olds. This report also reviews research indicating that by providing more developmentally appropriate responses – many of which already exist in the juvenile justice system, such as individualized rehabilitative services and confidentiality protections – Illinois could increase positive outcomes for the youth and enhance public safety.
Multiparticle solutions to Einstein's equations
Creators: name: Gomez, Humberto
name: Jusinskas, Renann Lipinski
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: In this letter we present the first multiparticle solutions to Einstein's field equations in the presence of matter. These solutions are iteratively obtained via the perturbiner method, which can circumvent gravity's infinite number of vertices with the definition of a multiparticle expansion for the inverse spacetime metric as well. Our construction provides a simple layout for the computation of tree level field theory amplitudes in $D$ spacetime dimensions involving any number of gravitons and matter fields, with or without supersymmetry.
description: 7 pages. v2: minor corrections, references added, matches version accepted for publication in PRL
Ο Καλλιτέχνης, η Δημοκρατία και η Πρόοδος στον 19ο Αιώνα. Η Περίπτωση Φλωμπέρ και η Σκέψη του Νίτσε
Creators: name: Αμπατζής, Ευστράτιος Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Φλωμπέρ
Καλλιτέχνης
Πρόοδος
Flaubert
Artist
Progress

description: Σκοπός της διατριβής ήταν η μελέτη της πολιτικής φιλοσοφίας του Φλωμπέρ, όπως αυτή αναδεικνύεται τόσο μέσα από το μυθιστορηματικό του έργο όσο και μέσα από την πλούσια επιστολογραφία του. Αφού εξετάσαμε κάποιες εκλεκτικές συγγένειες της φλωμπερικής σκέψης με τον φιλοσοφικό στοχασμό του Νίτσε, κυρίως υπό το πρίσμα μιας νιτσεϊκής τυπολογίας της παρακμής, παρουσιάσαμε την έντονα κριτική στάση του συγγραφέα απέναντι στα κυρίαρχα ιδεολογικά ρεύματα της εποχής του, ιδίως δε τις ιδεολογίες ενός δημοκρατικού ουτοπισμού και τις αυταπάτες της προόδου. Στη συνέχεια διερευνήσαμε τα όρια μιας φλωμπερικής «φιλοσοφίας της φόρμας», όπως αυτή αναδύεται ιδίως στη Σαλαμπώ και στο Μπουβάρ και Πεκυσέ. Στο τελευταίο κεφάλαιο εντοπίσαμε το στίγμα του περίφημου αισθητισμού του Φλωμπέρ σε μία ειρωνικά πολιτική απόσυρση από το Πολιτικό.
description: The aim of the present thesis was the study of Flaubert’s political philosophy, as it emerges through his fictional work as well as his rich epistolography. Having examined some close resemblances between flaubertian thought and Nietzsche’s philosophy, mainly in the light of a nietzschean decadence typology, we presented the author’s critical stance towards his times’ predominant ideological currents, above all towards the ideology of democratic utopianism and the illusions of progress. Then, we explored the limits of a flaubertian “philosophy of form”, as it emerges chiefly through Salammbô and Bouvard and Pecuchet. In the last chapter we identified Flaubert’s famed aestheticism as an ironically political withdrawal from the Political.
Tritium suppression factor of the KATRIN transport section
Creators: name: Röttele, Carsten
Publisher: name: Karlsruhe
Year: 2019
Subjects: KATRIN
neutrino
tritium retention
DPS
CPS

description: The Karlsruhe Tritium Neutrino (KATRIN) experiment aims to determine the effective neutrino mass with a sensitivity of 0.2$\,$eV/c$^2$ (90% C.L.) using the kinematics of electrons from the tritium beta-decay. In this thesis, the tritium retention of the KATRIN transport and pumping section is fully characterized. The neutral tritium flow has to be reduced by at least 14 orders of magnitude in order to sustain a sufficiently low background rate from the spectrometers. Therefore, dedicated vacuum simulations and commissioning measurements were performed. The results of this thesis demonstrate that the requirements for the tritium suppression are fulfilled.
Matrix Factorizations, Minimal Models and Massey Products
Creators: name: Knapp, Johanna
name: Omer, Harun
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present a method to compute the full non-linear deformations of matrix factorizations for ADE minimal models. This method is based on the calculation of higher products in the cohomology, called Massey products. The algorithm yields a polynomial ring whose vanishing relations encode the obstructions of the deformations of the D-branes characterized by these matrix factorizations. This coincides with the critical locus of the effective superpotential which can be computed by integrating these relations. Our results for the effective superpotential are in agreement with those obtained from solving the A-infinity relations. We point out a relation to the superpotentials of Kazama-Suzuki models. We will illustrate our findings by various examples, putting emphasis on the E_6 minimal model.
description: 32 pages, v2: typos corrected, v3: additional comments concerning the bulk-boundary crossing constraint, some small clarifications, typos
Quantization of Gravity in the Black Hole Background
Creators: name: Kallosh, Renata
name: Rahman, Adel A.
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: We perform a covariant (Lagrangian) quantization of perturbative gravity in the background of a Schwarzschild black hole. The key tool is a decomposition of the field into spherical harmonics. We fix Regge-Wheeler gauge for modes with angular momentum quantum number $l \geq 2$, while for low multipole modes with $l$ $=$ $0$ or $1$ -- for which Regge-Wheeler gauge is inapplicable -- we propose a set of gauge fixing conditions which are 2D background covariant and perturbatively well-defined. We find that the corresponding Faddeev-Popov ghosts are non-propagating for the $l\geq2$ modes, but are in general nontrivial for the low multipole modes with $l = 0,1$. However, in Schwarzschild coordinates, all time derivatives acting on the ghosts drop from the action and the low multipole ghosts have instantaneous propagators. Up to possible subtleties related to quantizing gravity in a space with a horizon, Faddeev's theorem suggests the possibility of an underlying canonical (Hamiltonian) quantization with a manifestly ghost-free Hilbert space.
description: 29 p
Total correlations as fully additive entanglement monotones
Creators: name: Paz-Silva, Gerardo A.
name: Reina, John H.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We generalize the strategy presented in Refs. [1, 2], and propose general conditions for a measure of total correlations to be an entanglement monotone using its pure (and mixed) convex-roof extension. In so doing, we derive crucial theorems and propose a concrete candidate for a total correlations measure which is a fully additive entanglement monotone.
description: 8 pages, 3 figures. Title changed, new results
Νετρίνο Πυρηνικών Αντιδραστήρων και η Ανίχνευση τους μέσω της Σύγχρονης Σκέδασης
Creators: name: Παρασκευά, Μαρία Αμανάτιου
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Νετρίνο
Αντιδραστήρες
Σύγχρονη Σκέδαση
Neutrino
Reactors
Coherent Scattering

description: Ο σφαιρικός αναλογικός είναι μια από τις μεγαλύτερες ανακαλύψεις της σύγχρονης φυσικής στον κόσμο. Την στιγμή αυτή λαμβάνουν χώρα τρία μεγάλα πειράματα με σφαιρικούς απαριθμητές , ένα στην Γαλλία , ένα στην Ισπανία και ένα στην Ελλάδα. Ο αναλογικός απαριθμητής απαρτίζεται από μια μεγάλη σφαίρα η οποία είναι γεμάτη με αέριο ραδιενεργό όπως το Αργό Ar και το Ξένο Xe ενώ ορισμένες φορές υπάρχει κενό. Στο κέντρο της υπάρχει μια μικρή αγώγιμη σφαίρα την οποία τροφοδοτούμε με διάφορες τιμές τάσης για να μελετήσουμε το ηλεκτρικό πεδίο που δημιουργείται με το πρόγραμμα προσομοίωσης Bella που είναι και η αρχική μας μελέτη. Μετέπειτα έρχεται η μελέτη των νετρίνο που προέρχονται από την λειτουργία του πυρηνικού αντιδραστήρα καθώς και την κατάλληλη απόσταση που πρέπει να τοποθετηθεί αυτός επί τη τοποθετήσει του απαριθμητή μας που είναι γεμάτος με το αέριο Αργό Ar , στην θέση απαριθμητών σε μεγάλα πειράματα όπως το Nucifer KamLAND JOYO etc. Όπως επίσης και την μελέτη της ροής και της ενεργού διατομής. Επίσης με θεωρητική παρατήρηση βασισμένη στα πειπερς τον αριθμό των γεγονότων αλλά και του ρυθμού εκπομπής των νετρίνο ανά σχάση σε έναν τυπικό πυρηνικό αντιδραστήρα με σχάσιμο υλικό το Ουράνιο και το Πλουτώνιο σε σχέση με την απόσταση του αντιδραστήρα από τον ανιχνευτή και την ενέργεια. Γεγονός που πραγματεύτηκα σε αυτήν την διπλωματική εργασία.
description: The spherical proportional counter is one of the most important invention in modern physics around the world. We have three big experiments with spherical detectors in France , Spain and Greece. The proportional counter consisted from one big sphere full from radioactive gas like argon Ar , Xe xenon or sometimes nothing. In the center exists one small sphere which is charged with high voltage. We can change the voltage of the inner sphere and that helps us to study the electric field with Bella program, the neutrons of the nuclear reactors and the best distance between reactor and counter. Also we can measure the flux of neutrino in the spherical proportional counter with Ar ( which is the feeling gas of the counter in Thessaloniki Aristoteleio University , Greece) and the cross section by placing the counter in the place of other counters of big experiments as Nucifer KamLAND JOYO etc. Also we observe theoretical the number of events, the rare , that take part for every fission at a typical nuclear reactor which is field with Uranium U and Plutonium Pu combined with the distance of the detector. This was the current job of my study that you will see in this diploma thesis.
title: Economic Potential and Legal Assessment of Shale Gas Fracking in Austria
Creators: name: Bauer, Evelyn
Publisher: name: TU Wien
Year: 2021
Subjects: subject: fracking
subject: shale gas
subject: mining waste water

description: The share of renewable energy sources on the global energy market is constantly increasing. At the same time, almost unnoticed by the general public a consequential energy transition from coal and oil to natural gas is happening. One of the main driver for this trend is Shale Gas. ShaleGas is a “difficult-to-extract-gas” that requires additional well stimulation in the form of Fracking. Fracking uses a high-pressure injection of fluids that fractures the bedrock formation and releases the gas trapped therein. This method is regarded controversial due to its high-levelwater consumption and innate risk for drink water contamination.The thesis first illustrates the necessary technical steps of fracking. Second, it presents the economic potential of shale gas in Austria, therefore, evaluates the national volume of shale gas reserves and calculates the production costs and the break-even price of shale gas from domestic exploitation. Third, it evaluates the effectiveness of Shale Gas legal framework concerning drink water safety. It looks at the possible impacts and potential risks for all waters, especially in regard to water with drawal and the discharge of mining waste water (flowback and producedwater). It answers the question whether an EIA for fracking could be issued positively.
Magnetic Activity in Stellar Merger Products
Creators: name: Soker, Noam
name: Tylenda, Romuald
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study the expected X-ray luminosity of stellar merger products several years after merger. The X-ray emission is assumed to result from magnetic activity. The extended envelope of the merger product possesses a large convective region and it is expected to rotate fast. The rotation and convection might give rise to an efficient dynamo operation, therefore we expect strong magnetic activity. Using well known relations connecting magnetic activity and X-ray luminosity in other types of magnetically active stars, we estimate that the strong X-ray luminosity will start several years after merger, will reach a maximum of L_x~3x10^{30} erg/sec, and will slowly decline on a time scale of ~100 years. We predict that X-ray emission from V838 Mon which erupted in 2002 will be detected in 2008 with 20 hours of observation.
description: MNRAS, in press
Octagon with finite bridge: free fermions and determinant identities
Creators: name: Kostov, Ivan
name: Petkova, Valentina B.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We continue the study of the octagon form factor which helps to evaluate a class of four-point correlation functions in $\mathcal{N}=4$ SYM theory. The octagon is characterised, besides the kinematical parameters, by a "bridge" of $\ell$ propagators connecting two non-adjacent operators. In this paper we construct an operator representation of the octagon with finite bridge as an expectation value in the Fock space of free complex fermions. The bridge $\ell$ appears as the level of filling of the Dirac sea. We obtain determinant identities relating octagons with different bridges, which we derive from the expression of the octagon in terms of discrete fermionic oscillators. The derivation is based on the existence of a previously conjectured similarity transformation, which we find here explicitly.
description: 29 pages, no figures. Minor corrections in v2
Ψυχοτρόπες ουσίες και φαρμακευτικά φυτά στην Προϊστορική Ελλάδα: υποθέσεις και δεδομένα
Creators: name: Καρατασάκη, Αικατερίνη Παναγιώτη
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Ψυχοτρόπες ουσίες
Φαρμακευτικά φυτά
Προϊστορική Ελλάδα
Psychoactive substances
Medicinal plants
Prehistoric Greece

description: Στην παρούσα εργασία γίνεται προσπάθεια να διερευνηθούν η παρουσία και η χρήση ορισμένων φαρμακευτικών και ψυχοτρόπων φυτικών ειδών και ουσιών, κατάλοιπα των οποίων σώζονται στο αρχαιοβοτανικό υλικό από θέσεις της Νεολιθικής περιόδου και της Εποχής του Χαλκού στον ελλαδικό χώρο. Τα είδη και οι ουσίες που μελετώνται είναι το λινάρι(Linum usitatissimum) , ο κορίανδρος (Coriander sativum), η τερέβινθος (Pistacia cf terebinthus), το κρασί και το όπιο. Η μελέτη γίνεται μέσα από την εξέταση αρχαιοβοτανικών δεδομένων, διαφόρων κατηγοριών αρχαιολογικών δεδομένων, χημικών αναλύσεων, γραπτών πηγών (πινακίδων Γραμμικής Β γραφής, αιγυπτιακών ιατρικών παπύρων και μεταγενέστερων ιατρικών κειμένων της αρχαίας ελληνικής και λατινικής γραμματείας), εθνογραφικών και εθνοβοτανικών ερευνών. Η συγκέντρωση των δεδομένων αυτών έγινε για την εξέταση του ρόλου που θα είχε η κατανάλωση των συγκεκριμένων ειδών σε καθημερινό και ειδικό πλαίσιο στη διαμόρφωση και τη διαπραγμάτευση κοινωνικών σχέσεων
description: At the present thesis it has been attempted to investigate the presence and use of some medicinal psychoactive plant species and substances, residues of which are present to the archaeobotanical record from Neolithic and Bronze Age sites in Greece. The species and substances under study are flax (Linum usitatissimum), coriander (Coriander sativum ), terebinth (Pistacia cf terebinthus), wine and opium. The study has been made through the examination of archaeobotanical data, diverse categories of archaeological data, organic residue analyses, ancient texts (Linear B tablets, Eguptian papyri, ancient Greek and Roman medical texts), ethnographic and ethnobotanical data. The concentration of all the data has aimed to examine the role of these plants and substances in an everyday and special context in the creation and negotiation of social relations
Spin injection from perpendicular magnetized ferromagnetic $δ$-MnGa into (Al,Ga)As heterostructures
Creators: name: Adelmann, C.
name: Lou, X.
name: Chiang, H. -S.
name: Hilton, J. L.
name: Schultz, B. D.
name: McKernan, S.
name: Crowell, P. A.
name: Palmstrom, C. J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Electrical spin injection from ferromagnetic $δ$-MnGa into an (Al,Ga)As p-i-n light emitting diode (LED) is demonstrated. The $δ$-MnGa layers show strong perpendicular magnetocrystalline anisotropy, enabling detection of spin injection at remanence without an applied magnetic field. The bias and temperature dependence of the spin injection are found to be qualitatively similar to Fe-based spin LED devices. A Hanle effect is observed and demonstrates complete depolarization of spins in the semiconductor in a transverse magnetic field.
description: 4 pages, 3 figures
Identification of a telecom wavelength single photon emitter in silicon
Creators: name: Udvarhelyi, Péter
name: Somogyi, Bálint
name: Thiering, Gergő
name: Gali, Adam
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We identify the exact microscopic structure of the G photoluminescence center in silicon by first principles calculations with including a self-consistent many-body perturbation method, which is a telecommunication wavelength single photon source. The defect constitutes of $\text{C}_\text{s}\text{C}_\text{i}$ carbon impurities in its $\text{C}_\text{s}-\text{Si}_\text{i}-\text{C}_\text{s}$ configuration in the neutral charge state, where $s$ and $i$ stand for the respective substitutional and interstitial positions in the Si lattice. We reveal that the observed fine structure of its optical signals originates from the athermal rotational reorientation of the defect. We attribute the monoclinic symmetry reported in optically detected magnetic resonance measurements to the reduced tunneling rate at very low temperatures. We discuss the thermally activated motional averaging of the defect properties and the nature of the qubit state.
description: 2 figures
Η παρουσία του χορού στην λατρευτική ζωή των αρχαίων Ελλήνων
Creators: name: Λοΐζου, Παυλίνα Αντωνίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Λατρεία
Μυστήρια
Χορός
Αρχαία Ελλαδα
Worship
Mysteries
Dance
Ancient Greece

description: Ο χορός αποτελεί μία από τις παλαιότερες μορφές τέχνης, με την ιστορία της να είναι συνώνυμη με την ιστορία του ανθρώπου. Οι Έλληνες είναι ένας λαός που ασχολήθηκε ιδιαίτερα με τον χορό από την αρχαιότητα μέχρι και σήμερα. Κατά την κλασική περίοδο αποτέλεσε ουσιαστικό κομμάτι στην θρησκεία των Ελλήνων αφού πεποίθησή τους ήταν ότι με αυτόν τον τρόπο προσέγγιζαν και επικοινωνούσαν με τους θεούς τους. Την περίοδο αυτή πολλοί θεοί ταυτίστικαν με τον χορό όπως ο Απόλλωνας, η Άρτεμης, ο Διόνυσος και η Δήμητρα. Ο χορός αποτελούσε αναπόσπαστο κομμάτι της μυστηριακής λατρείας των Ελλήνων αφού μέσω αυτού προσδοκούσαν την βοήθεια των θεών τους. Στα μυστήρια αυτά οι συμμετέχοντες εκτελούσαν ιερούς χορούς αφιερωμένους στους θεούς με απότερο σκοπό να επιτύχουν πνευματική απελευθέρωση και τελικά την ένωση μαζί τους. Από τα σημαντικότερα μυστήρια της κλασικής περιόδου ήταν τα Ελευσίνια, τα Διονυσιακά, τα Ορφικά και τα Κορυβαντικά. Η μελέτη αυτή διερεύνησε την παρουσία του χορού στην λατρευτική ζωή των Ελλήνων της κλασικής αρχαιότητας. Από την ενδελεχή έρευνα που πραγματοποιήθηκε διαπιστώθηκε ότι ο χορός κατείχε εξέχουσα θέση σε κάθε πτυχή της ζωής των Ελλήνων. Ως εκ τούτου ο χορός την περίοδο αυτή ήταν σημαντικό κομμάτι της θρησκευτικής και μυστηριακής ζωής των Ελλήνων
description: The dance is one of the oldest forms of art, with its history being synonymous with thw history of man. The Greeks are people that involved especially with dance from antiquity until today. During the clasical period it was an essential part of the Greeks religion because they believed that they were approaching and communicating with their gods in this way. At that times many gods identified themeselves with dancing as Apollo, Artemis, Dionysos and Demetra. The dance was an integral part of the mistical worship of the Greeks because they were expecting the help of their gods. In thsese mysteries the participants were performing sacred dances dedicated to the gods for the ultimate purpose of achieving spiritual liberation and eventually uniting with them. Some of the most important misteries of the clasical period were the Eleusinia, Dionysiaka, Orfica and Koryvanic. This study investigated the presense of dance in the worship life of the Greeks of clasical antiquity. From the in-depth research carry out, it was found that dance held a prominent place in every aspect of Greeks life. Therefore, dancing during this period was an important part of the religious and mysterious life of the Greeks
Simple pair-potentials and pseudo-potentials for warm-dense matter and general applications
Creators: name: Dharma-wardana, M. W. C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We present methods for generating computationally simple parameter-free pair potentials useful for solids, liquids and plasma at arbitrary temperatures. They successfully treat warm-dense matter (WDM) systems like carbon or silicon with complex tetrahedral or other structural bonding features. Density functional theory asserts that only one-body electron densities, and one-body ion densities are needed for a complete description of electron-ion systems. DFT is used here to reduce {\it both} the electron many-body problem and the ion many-body problem to an exact one-body problem, namely that of the neutral pseudoatom (NPA). We compare the Stillinger-Weber (SW) class of multi-center potentials, and the embedded-atom approaches, with the NPA approach to show that many-ion effects are systematically included in this one-center method via one-body exchange-correlation functionals. This computationally highly efficient "single-center" DFT-NPA approach is contrasted with the usual $N$-center DFT calculations that are coupled with molecular dynamics (MD) simulations to equilibriate the ion distribution. Comparisons are given with the pair-potential parts of the SW, effective-medium `glue' models, and the corresponding NPA pair-potentials to elucidate how the NPA potentials capture many-center effects using only pair-potentials, based on single-center one-body densities.
description: 15 pages, 9 figures
Bruhat decompositions and Schubert varieties
Creators: name: Li, Qing
Publisher: name: University of British Columbia
Year: 2009

description: This paper is divided into two parts. In first chapter we give a special C* action on G/ P and show that the associated plus decomposition of this action is the Bruhat decomposition of G/P. Moreover we prove that the set of Schubert varieties of Gk(Cⁿ) is in one to one correspondence with the plus cells of a certain C* action on Gk(Cⁿ). In chapter two we relate partitions to Schubert varieties. Also we relate the ordering of Schubert varieties by inclusion Gk(Cⁿ) to a quotient of the Bruhat ordering on the Weyl group Sn. Several examples have been included.
Transiting exoplanets from the CoRoT space mission I - CoRoT-Exo-1b: a low-density short-period planet around a G0V star
Creators: name: Barge, P.
name: Baglin, A.
name: Auvergne, M.
name: Rauer, H.
name: Leger, A.
name: Schneider, J.
name: Pont, F.
name: Aigrain, S.
name: Almenara, J. -M.
name: Alonso, R.
name: Barbieri, M.
name: Borde, P.
name: Bouchy, F.
name: Deeg, H. -J.
name: De la Reza, R.
name: Deleuil, M.
name: Dvorak, R.
name: Erikson, A.
name: Fridlund, M.
name: Gillon, M.
name: Gondoin, P.
name: Guillot, T.
name: Hatzes, A.
name: Hebrard, G.
name: Jorda, L.
name: Kabath, P.
name: Lammer, H.
name: Llebaria, A.
name: Loeillet, B.
name: Magain, P.
name: Mazeh, T.
name: Moutou, C.
name: Ollivier, M.
name: Patzold, M.
name: Queloz, D.
name: Rouan, D.
name: Shporer, A.
name: Wuchterl, G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Context. The pioneer space mission for photometric planet searches, CoRoT, steadily monitors about 12,000 stars in each of its fields of view; it is able to detect transit candidates early in the processing of the data and before the end of a run. Aims. We report the detection of the first planet discovered by CoRoT and characterizing it with the help of follow-up observations. Methods. Raw data were filtered from outliers and residuals at the orbital period of the satellite. The orbital parameters and the radius of the planet were estimated by best fitting the phase folded light curve with 34 successive transits. Doppler measurements with the SOPHIE spectrograph permitted us to secure the detection and to estimate the planet mass. Results. The accuracy of the data is very high with a dispersion in the 2.17 min binned phase-folded light curve that does not exceed 3.10-4 in flux unit. The planet orbits a mildly metal-poor G0V star of magnitude V=13.6 in 1.5 days. The estimated mass and radius of the star are 0.95+-0.15Msun and 1.11+-0.05Rsun. We find the planet has a radius of 1.49+-0.08Rjup, a mass of 1.03+-0.12Mjup, and a particularly low mean density of 0.38 +-0.05g cm-3.
description: A&A letters (in press) - 4 pages - 3 figures
Higher spin wormholes from modular bootstrap
Creators: name: Das, Diptarka
name: Datta, Shouvik
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate the connection between spacetime wormholes and ensemble averaging in the context of higher spin AdS$_3$/CFT$_2$. Using techniques from modular bootstrap combined with some holographic inputs, we evaluate the partition function of a Euclidean wormhole in AdS$_3$ higher spin gravity. The fixed spin sectors of the dual CFT$_2$ exhibit features that starkly go beyond conventional random matrix ensembles: power-law ramps in the spectral form factor and potentials with a double-well/crest underlying the level statistics.
description: 31 pages, 2 figures, matches published version
Molecular gas distribution perpendicular to the Galactic plane
Creators: name: Su, Yang
name: Yang, Ji
name: Yan, Qing-Zeng
name: Zhang, Shaobo
name: Wang, Hongchi
name: Sun, Yan
name: Chen, Zhiwei
name: Wang, Chen
name: Zhou, Xin
name: Chen, Xuepeng
name: Jiang, Zhibo
name: Wang, Min
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We use the ~370 square degrees data from the MWISP CO survey to study the vertical distribution of the molecular clouds (MCs) toward the tangent points in the region of l=[16,52]deg and |b|<5.1deg. The molecular disk consists of two components with the layer thickness (FWHM) of ~85pc and ~280pc, respectively. In the inner Galaxy, the molecular mass in the thin disk is dominant, while the molecular mass traced by the discrete MCs with weak CO emission in the thick disk is probably <10% of the whole molecular disk. For the CO gas in the thick disk, we identified 1055 high-z MCs that are >100pc from the Galactic plane. However, only a few samples (i.e., 32 MCs) are located in the |z|>360pc region. Typically, the discrete MCs of the thick disk population have a median peak temperature of 2.1 K, a median velocity dispersion of 0.8km/s, and a median effective radius of 2.5pc. The median surface density of these MCs is 6.8 Msun/pc^2, indicating very faint CO emission for these high-z MCs. The cloud-cloud velocity dispersion is 4.9+-1.3 km/s and a linear variation with a slope of -0.4 km/s/kpc is obtained in the region of R_GC=2.2-6.4kpc. Assuming that these clouds are supported by their turbulent motions against the gravitational pull of the disk, a model of rho0(R) = 1.28exp(-R/3.2kpc) Msun/pc^3 can be used to describe the distribution of the total mass density in the Galactic midplane.
description: 29 pages, 13 figures, 3 tables (2021, ApJ, 910, 131)
Eliciting and Analysing Users' Envisioned Dialogues with Perfect Voice Assistants
Creators: name: Völkel, Sarah Theres
name: Buschek, Daniel
name: Eiband, Malin
name: Cowan, Benjamin R.
name: Hussmann, Heinrich
Publisher: name: arXiv
Year: 2021
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences
subject: H.5.2

description: We present a dialogue elicitation study to assess how users envision conversations with a perfect voice assistant (VA). In an online survey, N=205 participants were prompted with everyday scenarios, and wrote the lines of both user and VA in dialogues that they imagined as perfect. We analysed the dialogues with text analytics and qualitative analysis, including number of words and turns, social aspects of conversation, implied VA capabilities, and the influence of user personality. The majority envisioned dialogues with a VA that is interactive and not purely functional; it is smart, proactive, and has knowledge about the user. Attitudes diverged regarding the assistant's role as well as it expressing humour and opinions. An exploratory analysis suggested a relationship with personality for these aspects, but correlations were low overall. We discuss implications for research and design of future VAs, underlining the vision of enabling conversational UIs, rather than single command "Q&As".
description: 15 pages, 4 figures, 3 tables, ACM CHI 2021
Infinite Series of Ferrimagnetic Phases Emergent from the Gapless Spin Liquid Phase of Mixed Diamond Chains
Creators: name: Hida, Kazuo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The ground-state phases of mixed diamond chains with ($S, τ^{(1)}, τ^{(2)})=(1/2,1/2,1)$, where $S$ is the magnitude of vertex spins, and $τ^{(1)}$ and $τ^{(2)}$ are those of apical spins, are investigated. The apical spins $τ^{(1)}$ and $τ^{(2)}$ are connected with each other by an exchange coupling $λ$. Other exchange couplings are set equal to unity. This model has an infinite number of local conservation laws. For large $λ$, the ground state is equivalent to that of the uniform spin $1/2$ chain. Hence, the ground state is a gapless spin liquid. For $λ\leq 0$, the ground state is a Lieb-Mattis ferrimagnetic phase with spontaneous magnetization $m_{\rm sp}=1$ per unit cell. For intermediate $λ$, we find a series of ferrimagnetic phases with $m_{\rm sp}=1/p$ where $p$ takes positive integer values. The phases with $p \geq 2$ are accompanied by the spontaneous breakdown of the $p$-fold translational symmetry. It is suggested that the phase with arbitrarily large $p$, namely infinitesimal spontaneous magnetization, is allowed as $λ$ approaches the transition point to the gapless spin liquid phase.
Spectroscopy of $A=9$ hyperlithium by the $(e,e^{\prime}K^{+})$ reaction
Creators: name: Gogami, T.
name: Chen, C.
name: Kawama, D.
name: Achenbach, P.
name: Ahmidouch, A.
name: Albayrak, I.
name: Androic, D.
name: Asaturyan, A.
name: Asaturyan, R.
name: Ates, O.
name: Baturin, P.
name: Badui, R.
name: Boeglin, W.
name: Bono, J.
name: Brash, E.
name: Carter, P.
name: Chiba, A.
name: Christy, E.
name: Danagoulian, S.
name: De Leo, R.
name: Doi, D.
name: Elaasar, M.
name: Ent, R.
name: Fujii, Y.
name: Fujita, M.
name: Furic, M.
name: Gabrielyan, M.
name: Gan, L.
name: Garibaldi, F.
name: Gaskell, D.
name: Gasparian, A.
name: Han, Y.
name: Hashimoto, O.
name: Horn, T.
name: Hu, B.
name: Hungerford, Ed. V.
name: Jones, M.
name: Kanda, H.
name: Kaneta, M.
name: Kato, S.
name: Kawai, M.
name: Khanal, H.
name: Kohl, M.
name: Liyanage, A.
name: Luo, W.
name: Maeda, K.
name: Margaryan, A.
name: Markowitz, P.
name: Maruta, T.
name: Matsumura, A.
name: Maxwell, V.
name: Meekins, D.
name: Mkrtchyan, A.
name: Mkrtchyan, H.
name: Nagao, S.
name: Nakamura, S. N.
name: Narayan, A.
name: Neville, C.
name: Niculescu, G.
name: Niculescu, M. I.
name: Nunez, A.
name: Nuruzzaman
name: Okayasu, Y.
name: Petkovic, T.
name: Pochodzalla, J.
name: Qiu, X.
name: Reinhold, J.
name: Rodriguez, V. M.
name: Samanta, C.
name: Sawatzky, B.
name: Seva, T.
name: Shichijo, A.
name: Tadevosyan, V.
name: Tang, L.
name: Taniya, N.
name: Tsukada, K.
name: Veilleux, M.
name: Vulcan, W.
name: Wesselmann, F. R.
name: Wood, S. A.
name: Yamamoto, T.
name: Ya, L.
name: Ye, Z.
name: Yokota, K.
name: Yuan, L.
name: Zhamkochyan, S.
name: Zhu, L.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Missing mass spectroscopy with the $(e,e^{\prime}K^{+})$ reaction was performed at Jefferson Laboratory's Hall C for the neutron rich $Λ$ hypernucleus $^{9}_Λ{\rm Li}$. The ground state energy was obtained to be $B_Λ^{\rm g.s.}=8.84\pm0.17^{\rm stat.}\pm0.15^{\rm sys.}~{\rm MeV}$ by using shell model calculations of a cross section ratio and an energy separation of the spin doublet states ($3/2^{+}_1$ and $5/2^{+}_1$). In addition, peaks that are considered to be states of [$^{8}{\rm Li}(3^{+})\otimes s_Λ=3/2^{+}_{2}, 1/2^{+}$] and [$^{8}{\rm Li}(1^{+})\otimes s_Λ=5/2^{+}_{2}, 7/2^{+}$] were observed at $E_Λ({\rm no.~2})=1.74\pm0.27^{\rm stat.}\pm0.11^{\rm sys.}~{\rm MeV}$ and $E_Λ({\rm no.~3})=3.30\pm0.24^{\rm stat.}\pm0.11^{\rm sys.}~{\rm MeV}$, respectively. The $E_Λ({\rm no.~3})$ is larger than shell model predictions by a few hundred keV, and the difference would indicate that a ${\rm ^{5}He}+t$ structure is more developed for the $3^{+}$ state than those for the $2^{+}$ and $1^{+}$ states in a core nucleus $^{8}{\rm Li}$ as a cluster model calculation suggests.
description: 5 pages, 3 figures
Combination treatment for visceral leishmaniasis (VL) patients co-infected with Human Immunodeficiency Virus (HIV) in Bihar, India
Creators: name: Mahajan, Raman
name: Das, Pradeep
name: Isaakidis, Petros
name: Temmy Sunyoto
name: Sagili, Karuna D
name: Marıa Angeles Lima
name: Gaurab Mitra
name: Kumar, Deepak
name: Pandey, Krishna
name: Geertruyden, Jean-Pierre Van
name: Boelaert, Marleen
name: Burza, Sakib
Publisher: name: F1000Research
Year: 2015

description: Here we aimed to determine up to 18 months treatment outcome of VL-HIV co-infected patients treated with combination therapy.Our findings suggested that:

Combination therapy of ambisome+miltefosine for HIV VL patients appear to be effective with good initial cure rate and well tolerated.

Confirmed high early mortality after VL dx and relapse after treatment completion.

No ART and concurrent TB associated with high mortality.

increase in VL relapse and mortality compared to HIV –ve  VL patients treated with 20 mg LamB.

increase in overall mortality (11.2 vs 8.7) but decrease relapse rates (6.4 vs 16.2) at 12 months compared to co-infected patients treated with 20-25mg/kg LamB monotherapy.
Implementation of a time-dependent multiconfiguration self-consistent-field method for coupled electron-nuclear dynamics in diatomic molecules driven by intense laser pulses
Creators: name: Li, Yang
name: Sato, Takeshi
name: Ishikawa, Kenichi L.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We present an implementation of a time-dependent multiconfiguration self-consistent-field (TD-MCSCF) method [R. Anzaki et al., Phys. Chem. Chem. Phys. 19, 22008 (2017)] with the full configuration interaction expansion for coupled electron-nuclear dynamics in diatomic molecules subject to a strong laser field. In this method, the total wave function is expressed as a superposition of different configurations constructed from time-dependent electronic Slater determinants and time-dependent orthonormal nuclear basis functions. The primitive basis functions of nuclei and electrons are strictly independent of each other without invoking the Born-Oppenheimer approximation. Our implementation treats the electronic motion in its full dimensionality on curvilinear coordinates, while the nuclear wave function is propagated on a one-dimensional stretching coordinate with rotational nuclear motion neglected. We apply the present implementation to high-harmonic generation and dissociative ionization of a hydrogen molecule and discuss the role of electron-nuclear correlation.
description: 18 pages, 11 figures
On polynomials in spectral projections of spin operators
Creators: name: Shabtai, Ood
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mathematical Physics (math-ph)
subject: Representation Theory (math.RT)
subject: Symplectic Geometry (math.SG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We show that the operator norm of an arbitrary bivariate polynomial, evaluated on certain spectral projections of spin operators, converges to the maximal value in the semiclassical limit. We contrast this limiting behavior with that of the polynomial when evaluated on random pairs of projections. The discrepancy is a consequence of a type of Slepian spectral concentration phenomenon, which we prove in some cases.
description: 40 pages, 8 figures. Added result on a type of Slepian spectral concentration
Inducing and optimizing Markovian Mpemba effect with stochastic reset
Creators: name: Busiello, Daniel Maria
name: Gupta, Deepak
name: Maritan, Amos
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: A hot Markovian system can cool down faster than a colder one: this is known as the Mpemba effect. Here, we show that a non-equilibrium driving via stochastic reset can induce this phenomenon, when absent. Moreover, we derive an optimal driving protocol simultaneously optimizing the appearance time of the Mpemba effect, and the total energy dissipation into the environment, revealing the existence of a Pareto front. Building upon previous experimental results, our findings open up the avenue of possible experimental realizations of optimal cooling protocols in Markovian systems.
description: Accepted Manuscript in New Journal of Physics (in press, 2021)