cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Towards a Culturally Grounded Typology of Magical Realism
Creators: name: Kovacevic-Löckner, Jelena
Publisher: name: KULT_online
Year: 2011

description: Among the recent publications which seek to offer yet another re-definition of magical realism, Christopher Warnes' study Magical Realism and the Postcolonial Novel: Between Faith and Irreverence accomplishes a double feat: while bringing into dialogue the development of both the term 'magical realism' and the mode itself, Warnes develops two paradigms representing two major structural and functional tendencies in magical realism. One is based on an attitude of faith towards the cultural values represented by the supernatural in the texts, the other is characterized by an irreverent stance towards both the real and the supernatural. Applied to some of the key works of magical realism by Borges, Carpentier, Asturias, García Márquez, Rushdie, and Okri, the two paradigms produce acute readings of the cultural and political functions of the deployment of the mode in each individual work. The result is not a redefinition of magical realism, but a thought provoking re-contextualization which offers a typology capable of spanning the varieties of the mode.
description: KULT_online, Nr. 28 (2011): KULT_online 28 (2011)
Two gamma quarkonium and positronium decays with Two-Body Dirac equations of constraint dynamics
Creators: name: Crater, Horace W.
name: Wong, Cheuk-Yin
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Two-Body Dirac equations of constraint dynamics provide a covariant framework to investigate the problem of highly relativistic quarks in meson bound states. This formalism eliminates automatically the problems of relative time and energy, leading to a covariant three dimensional formalism with the same number of degrees of freedom as appears in the corresponding nonrelativistic problem. It provides bound state wave equations with the simplicity of the nonrelativistic Schroedinger equation. Unlike other three-dimensional truncations of the Bethe-Salpeter equation, this covariant formalism has been thoroughly tested in nonperturbatives contexts in QED, QCD, and nucleon-nucleon scattering. Here we continue the important studies of this formalism by extending a method developed earlier for positronium decay into two photons to tests on the sixteen component quarkonium wave function solutions obtained in meson spectroscopy. We examine positronium decay and then the two-gamma quarkonium decays of eta_c, eta'_c, chi_0c, chi_2c, and pi-zero The results for the pi-zero, although off the experimental rate by 13%, is much closer than the usual expectations from a potential model.
description: 4 pages. Presented at Second Meeting of APS Topical Group on Hadron Physics, Nashville, TN, Oct 22-24. Proceedings to be published by Journal of Physics (UK), Conference Series
Emotion in Social Networks
Creators: name: Lindquist, Kristen
name: Prinstein, Mitchell J
name: Field, Nathan
name: Capella, James
name: Feldman, Mallory
name: Bonar, Adrienne S.
name: Nick, Elizabeth
name: Telzer, Eva
name: Tehya M.L. Drummond
Publisher: name: OSF Registries
Year: 2024
Subjects: subject: Social and Behavioral Sciences

description: This project explores the link between neural similarity in responses to affective images and proximity within real-world adolescent social networks.
Error models for mode-mismatch in linear optics quantum computing
Creators: name: Rohde, Peter P.
name: Ralph, Timothy C.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: One of the most significant challenges facing the development of linear optics quantum computing (LOQC) is mode-mismatch, whereby photon distinguishability is introduced within circuits, undermining quantum interference effects. We examine the effects of mode-mismatch on the parity (or fusion) gate, the fundamental building block in several recent LOQC schemes. We derive simple error models for the effects of mode-mismatch on its operation, and relate these error models to current fault tolerant threshold estimates.
description: 6 pages, 7 figures
Continuous biological leaching of copper from a chalcocite ore and concentrate in a saline environment
Creators: name: Weston, Jacqueline May
Publisher: name: University of British Columbia
Year: 2009

description: Biological leaching of a chalcocite ore and its concentrate was studied in both batch and continuous tests in a 3 g/L chloride environment. The feed material was obtained from the Zaldivar mine in Chile. The total copper contents of the ore and concentrate were 1.56% and 17.3% respectively, and the particle sizes were P₈₀ 108 µm and P₈₀ 53 µm respectively. The mineralogy consisted mainly of chalcocite (Cu₂S), pyrite (FeS₂) and brochantite (Cu₄(SO₄)(OH)₆). A mixed bacterial culture dominated by Thiobacillus ferrooxidans was obtained from the mine site for use in this study. Shake flask and batch stirred reactor tests were carried out to determine the amenability of both the ore and the concentrate to biological leaching. The effects of several variables on the rate and extent of copper extraction were investigated. In the shake flask tests and the batch reactor tests, it was determined that the bacterial culture was capable of oxidizing both the ore and the concentrate with average copper extractions of 90% and 97% obtained respectively. Continuous biological leaching was carried out in a series of three stirred tank reactors (4 L, 2 L and 2 L) for a period of four months. The bacteria were able to adapt to progressively lower system residence times and higher pulp densities. At the lowest residence time achieved of 2⅔ days with a pulp density of 10%, the steady state copper extraction was 82% for the ore and 83% for the concentrate. The copper bioleach rate achieved in the first bioleach stage was 16 mg/L/h for the ore and 250 mg/L/h for the concentrate. This study demonstrated the feasibility of the continuous biological leaching of either a chalcocite ore or a chalcocite concentrate in a 3 g/L chloride environment. The bacteria-rich leach residue from the process would be an excellent source of inoculum for biological heap leaching.
Design of Linear-to-Circular Polarization Transformers Made of Long Densely Packed Metallic Helices
Creators: name: Silveirinha, Mario G.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In this work, we study the realization of realistic polarization transformers formed by long metallic helices. To this end, we propose a new homogenization model to characterize the propagation of electromagnetic waves in medium formed by infinitely long helices. We derive approximate analytical expressions for the effective permittivity, effective permeability and the magnetoelectric tensor of the composite material, taking into account the effects of spatial dispersion. We apply the new homogenization model to characterize novel linear-to-circular polarization transformers. Our results show that the metamaterial screen may be designed in such a way that an incoming linearly polarized wave may be transformed into a circularly polarized transmitted wave, and that the transmission efficiency of such polarization transformer may be as high as 95%. The theoretical results are supported by full wave simulations.
description: 43 pages
Σχεδιασμός μέτρων ήπιας κυκλοφορίας και πεζοδρομήσεων στη Θεσσαλονίκη με τη χρήση μοντέλου προσομοίωσης της κυκλοφορίας
Creators: name: Γιαννακός, Λάζαρος Απόστολου
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: διαχείριση κυκλοφορίας
προσομοίωση
μικροσκοπική
traffic management
simulation
microscopic

description: Η παρούσα Διπλωματική Εργασία με τίτλο «Σχεδιασμός μέτρων ήπιας κυκλοφορίας και πεζοδρομήσεων στη Θεσσαλονίκη με τη χρήση μοντέλου προσομοίωσης της κυκλοφορίας», έχει ως αντικείμενο την κατάρτιση ενός σχεδίου σεναρίων, τα οποία περιλαμβάνουν μέτρα διαχείρισης της κυκλοφορίας στο κέντρο της Θεσσαλονίκης, και την ανάλυση των κυκλοφοριακών επιπτώσεων από την εφαρμογή των μέτρων μέσω μικροσκοπικής προσομοίωσης με τη χρήση του λογισμικού Aimsun. Αρχικά, αναλύονται τα υποδείγματα προσομοίωσης της κυκλοφοριακής ροής. Παρουσιάζονται οι κατηγορίες των υποδειγμάτων, ενώ ιδιαίτερη αναφορά πραγματοποιείται στα στοχαστικά υποδείγματα. Στη συνέχεια, περιγράφεται η διαδικασία μικροσκοπικής προσομοίωσης της κυκλοφορίας στο λογισμικό Aimsun, καθώς και η διαδικασία του δυναμικού καταμερισμού της κυκλοφορίας. Παρουσιάζεται επίσης η διαδικασία κωδικοποίησης και δυναμικής φόρτισης του δικτύου με τη χρήση του λογισμικού Aimsun. Έπειτα, πραγματοποιείται η περιγραφή των σεναρίων διαχείρισης της κυκλοφορίας τα οποία καταρτίστηκαν και εξετάστηκαν σε σύγκριση με την υφιστάμενη κατάσταση. Ακολουθεί η ανάλυση και αξιολόγηση των αποτελεσμάτων, όπως προέκυψαν από τη διαδικασία της δυναμικής μικροσκοπικής προσομοίωσης. Παράλληλα, πραγματοποιείται σύγκριση των αποτελεσμάτων του δυναμικού και του στατικού καταμερισμού της κυκλοφορίας. Εν τέλει, παρατίθενται τα συμπεράσματα και οι προτάσεις όσον αφορά στην εφαρμογή των μέτρων και των παρεμβάσεων των σεναρίων.
description: The present thesis entitled “Design of traffic calming measures and pedestrianizations in Thessaloniki using traffic simulation model”, deals with the design of a scenarios project, which include traffic management measures in the center of Thessaloniki, and the analysis of traffic impact from the application of these measures by microscopic simulation using Aimsun software. Initially, traffic flow simulation models are analyzed. Type models are introduced, with special reference place in stochastic models. Afterwards, the microscopic simulation process in Aimsun is described, as well as the dynamic traffic assignment process. The network’s coding method and dynamic load are also presented. Then, the description of traffic management scenarios, which have been developed and tested in comparison with the current situation, takes place. The result analysis and evaluation, as obtained by the process of dynamic microscopic simulation is displayed. Furthermore, a dynamic and static traffic assignment comparison is conducted. Finally, conclusions and recommendations regarding the implementation of scenarios’ measures and interventions are stated.
Mass loss along the red giant branch in 46 Globular Clusters and their multiple populations
Creators: name: Tailo, M.
name: Milone, A. P.
name: Lagioia, E. P.
name: D'Antona, F.
name: Marino, A. F.
name: Vesperini, E.
name: Caloi, V.
name: Ventura, P.
name: Dondoglio, E.
name: Cordoni, G.
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: The location of Galactic Globular Clusters' (GC) stars on the horizontal branch (HB) should mainly depend on GC metallicity, the "first parameter", but it is actually the result of complex interactions between the red giant branch (RGB) mass loss, the coexistence of multiple stellar populations with different helium content, and the presence of a "second parameter" which produces dramatic differences in HB morphology of GCs of similar metallicity and ages (like the pair M3--M13). In this work, we combine the entire dataset from the Hubble Space Telescope Treasury survey and stellar evolutionary models, to analyse the HBs of 46 GCs. For the first time in a large sample of GCs, we generate population synthesis models, where the helium abundances for the first and the "extreme" second generations are constrained using independent measurements based on RGB stars. The main results are: 1) the mass loss of first generation stars is tightly correlated to cluster metallicity. 2) the location of helium enriched stars on the HB is reproduced only by adopting a higher RGB mass loss than for the first generation. The difference in mass loss correlates with helium enhancement and cluster mass. 3) A model of "pre-main sequence disc early loss", previously developed by the authors, explains such a mass loss increase and is consistent with the findings of multiple-population formation models predicting that populations more enhanced in helium tend to form with higher stellar densities and concentrations. 4) Helium-enhancement and mass-loss both contribute to the second parameter.
description: 29 pages, 30 figures, 4 tables. Accepted for publication in MNRAS
МЕТАФОРА КАК КОГНИТИВНЫЙ ЭЛЕМЕНТ ПЕРЕДАЧИ ЭМОЦИЙ НА ПРИМЕРЕ ИСПАНСКОГО ЯЗЫКА
Creators: name: Турамуратова Ирода Илхомбаевна, доцент Узбекского государственного университета мировых языков, PhD
Publisher: name: Zenodo
Year: 2024

description: В данной статье рассматривается метафора как предмет исследования в когнитивной лингвистике. Язык является средством обработки, передачи информации, а метафора - универсальным когнитивным приемом оценки и объяснения мира. Через призму своего опыта мы выражаем свою точку зрения, используя слова определенной семантики, значения которых варьируются в зависимости от контекста. Опираясь на мнение о связи семантики с действительностью, исследуется языковое явление метафоры и его использование как средства передачи эмоций и чувств. Дана краткая характеристика метафоры как стилистического явления: определение, типизация, функции. В XX в. начинает развиваться такое направление, как когнитивизм. На его основе и рассматривается метафора как средство выражения эмоциональности в языке.

      Ключевые слова: когнитивная лингвистика, концептуальная метафора, образно-экспрессивная окраска, метафоры эмоций.
Γεω-περιβαλλοντική μελέτη & προσομοίωση περίπτωσης αστοχίας λιμνοδεξαμενής τοξικών λυμάτων
Creators: name: Τολέρη, Αθανασία Νικολάου
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: λιμνοδεξαμενή τελμάτων
σενάρια αστοχίας
διάδοση ρύπανσης
tailing reservoir
failure scenarios
pollution diffusion

description: Η ανάπτυξη της τεχνολογίας και της οικονομίας σε παγκόσμιο επίπεδο είχε σαν επακόλουθο την αντίστοιχη αύξηση της βιομηχανικής παραγωγής. Φυσική συνέπεια αυτού του γεγονότος αποτέλεσε η αύξηση της παραγωγής αποβλήτων και ειδικότερα τοξικών αποβλήτων. Οι βασικές αρχές λειτουργίας μιας εγκατάστασης αποθήκευσης τοξικών αποβλήτων στηρίζονται στην ασφαλή και μακροχρόνια αποθήκευση τους με ελάχιστες περιβαλλοντικές επιπτώσεις. Ο σχεδιασμός μιας λιμνοδεξαμενής αποθήκευσης τελμάτων γίνεται βάσει των συνθηκών της περιοχής εγκατάστασης της ώστε να εξασφαλιστεί η ασφάλεια και η ελαχιστοποίηση των περιβαλλοντικών επιπτώσεων. Στα πλαίσια λοιπόν της παρούσας έρευνας πραγματοποιήθηκε μια σειρά αναλύσεων για την περίπτωση αστοχίας μιας λιμνοδεξαμενής. Η μελέτη περιλαμβάνει τη χρήση του προγράμματος GeoStudio/2007, με το οποίο διεξάγονται εφτά αναλύσεις για διάφορες εδαφικές και υδραυλικές συνθήκες στην περιοχή εγκατάστασης της λιμνοδεξαμενής. Η συγκεκριμένη επιστημονική μελέτη έχει στόχο να εκτιμήσει την κίνηση και τις συγκεντρώσεις ενός ρυπαντή μέσα σε πορώδη υλικά για διάφορες χρονικές περιόδους καθώς επίσης και τους παράγοντες που ενισχύουν ή ανακόπτουν αυτή την κίνηση.
description: Technological and economic development had as result the corresponding growth of industrial production worldwide. Natural consequence of this fact was the increase in waste production and particularly in toxic waste production. The basic operating principles of a toxic waste storage facility are based on secure and long-term storage with low environmental impact. The design of a tailing storage reservoir is based on the special conditions of the installation area in order to ensure safety and minimize environmental impacts. In the framework of this study we performed some series of analysis for the case of a reservoir failure. This study includes use of the program GeoStudio / 2007, in which carried out seven analysis for different soil and hydraulic conditions at the construction area of the reservoir. This scientific work is designed to assess movement and concentration of a pollutant within porous materials, for different time periods, as well as the factors that enhance or inhibit this movement.
Comment on "The Cosmic Time in Terms of the Redshift", by Carmeli et al
Creators: name: Macdonald, Alan
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The time-redshift relation of Carmeli et al. differs from that of the standard flat LambdaCDM model by more than 500 million years for 1 < z < 4.5.
description: 2 pages, to appear Found. Phys. Lett
Gauge invariance of light-matter interactions in first-principle tight-binding models
Creators: name: Schüler, Michael
name: Marks, Jacob A.
name: Murakami, Yuta
name: Jia, Chunjing
name: Devereaux, Thomas P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the different ways of introducing light-matter interaction in first-principle tight-binding (TB) models. The standard way of describing optical properties is the velocity gauge, defined by linear coupling to the vector potential. In finite systems a transformation to represent the electromagnetic radiation by the electric field instead is possible, albeit subtleties arise in periodic systems. The resulting dipole gauge is a multi-orbital generalization of Peierl's substitution. In this work, we investigate accuracy of both pathways, with particular emphasis on gauge invariance, for TB models constructed from maximally localized Wannier functions. Focusing on paradigmatic two-dimensional materials, we construct first-principle models and calculate the response to electromagnetic fields in linear response and for strong excitations. Benchmarks against fully converged first-principle calculations allow for ascertaining the accuracy of the TB models. We find that the dipole gauge provides a more accurate description than the velocity gauge in all cases. The main deficiency of the velocity gauge is an imperfect cancellation of paramagnetic and diamagnetic current. Formulating a corresponding sum rule however provides a way to explicitly enforce this cancellation. This procedure corrects the TB models in the velocity gauge, yielding excellent agreement with dipole gauge and thus gauge invariance.
description: 13 pages, 6 figures
Extrusion of alumina particulate reinforced metal matrix composites
Creators: name: Chen, Wei Chang
Publisher: name: University of British Columbia
Year: 2009

description: Alumina particulate reinforced metal matrix composite is a new kind of material, which has wide potential applications in automobile industry. The study of its physical nature during extrusion process is essential to optimize the process which may improve its mechanical properties and increase its productivity to finally reduce its cost and make it more competitive to other materials. Constitutive equations were developed for the alumina particulate reinforced metal matrix composites (Duralcan materials) based on the hot deformation tests on a ‘Gleeble 1500’ machine. Plant trials were conducted for the same materials in both a laboratory extrusion device at Kingston R & D Center (KRDC), and an industrial extrusion press at Universal Alloy Corporation, California. Different temperatures and extrusion ratios with different ram speeds were adopted during extrusion. Low speed cracking was observed at the front end of some extrudates, which has not been observed with the unreinforced aluminum alloy (AA6061). Microstructure change with particle fracture and particle distribution was studied using an optical microscope and an image analyzer in the deformation zone of a billet and the extrudates from the plant trials. The extrusion processes have been simulated with the aid of a finite element model. The plant trial data were used to validate the model predictions. The model predictions at both a macroscopic and a microscopic level were correlated with microstructural changes. Extrusion Jimit diagrams for both composites of 6/0230l6O1/Ap1 and 6/02302610/Ap1 were developed with low speed cracking boundaries included for the press at UAC. The mechanism of the low speed cracking was proposed based on the FEM and SEM analysis. Although low-speed cracking was proposed to be associated with void formation in the surface layer of the extrudates, the voids were not significant to the effect of tensile properties, because the elastic modulus, the yield stress and the ultimate tensile strength measured from extrudates of the plant trials at KRDC did not decline at extrusion ratios from 10 to about 30. Minimization of void formation in the composites was discussed and recommendations have been provided for optimization of the extrusion of the alumina particulate reinforced MMCs.
Performance of Rake Receivers in IR-UWB Networks Using Energy-Efficient Power Control
Creators: name: Bacci, Giacomo
name: Luise, Marco
name: Poor, H. Vincent
Publisher: name: arXiv
Year: 2007
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: This paper studies the performance of partial-Rake (PRake) receivers in impulse-radio ultrawideband wireless networks when an energy-efficient power control scheme is adopted. Due to the large bandwidth of the system, the multipath channel is assumed to be frequency-selective. By making use of noncooperative game-theoretic models and large-system analysis tools, explicit expressions are derived in terms of network parameters to measure the effects of self-interference and multiple-access interference at a receiving access point. Performance of the PRake receivers is thus compared in terms of achieved utilities and loss to that of the all-Rake receiver. Simulation results are provided to validate the analysis.
description: 24 pages, 7 figures. Submitted to the IEEE Transactions on Wireless Communications
Ανίχνευση δυσκολιών στα Μαθηματικά για παιδιά προσχολικής ηλικίας: μία πιλοτική εφαρμογή ανιχνευτικού κριτηρίου μέσης επίδοσης.
Creators: name: Ντουνούση, Αικατερίνη Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: Πρώιμη μαθηματική επάρκεια
Μέση επίδοση
Μαθησιακές δυσκολίες στα Μαθηματικά
Πρόγραμμα Σπουδών του Νηπιαγωγείου
Early Maths competency
Average performance
Learning disabilities in Maths
Preschool Curriculum

description: Στόχος της παρούσας έρευνας είναι η κατασκευή ενός εργαλείου, που θα απευθύνεται στην προσχολική ηλικία και το οποίο καλύπτοντας μία θεματολογία που προκύπτει από το Αναλυτικό Πρόγραμμα Σπουδών του Νηπιαγωγείου και βασιζόμενο στη θεωρία της πρώιμης μαθηματικής επάρκειας, και στις εκτιμήσεις Νηπιαγωγών για το ποια είναι τα πιο σημαντικά θέματα στα οποία πρέπει να ανταποκρίνεται ένα νήπιο, θα εντοπίζει τα νήπια που βρίσκονται εντός του εύρους της μέσης επίδοσης της τάξης τους. Η χορήγησή του θα δίνει τη δυνατότητα στην/στον εκπαιδευτικό της τάξης, να ελέγχει εάν ένα παιδί έχει αποκτήσει εκείνο το επίπεδο επάρκειας, σε ότι αφορά τις μαθηματικές γνώσεις και δεξιότητες, που θα του επιτρέπει να προχωρήσει στην επόμενη τάξη (Α’ Δημοτικού).
description: The goal of the present research is the creation of an implement which starting from a pilot criterion, will be addressed to the preschool age by covering a range of subjects (themes) that are issued from the Preschool Analytical Curriculum and based on the early Maths competency theory as well as on the teacher’s estimation about what are the most important subjects a preschool child must be responded to, will finally detect the preschool children that are out of the average performance inclusiveness of their class. Providing this implement, the preschool teacher will have the ability to check whether or not a child has acquired this level of competency as it concerns the mathematical knowledge and skills, that will permit the child’s advance in the first class of the Primary School.
Real-time imputation of missing predictor values in clinical practice
Creators: name: Nijman, Steven WJ
name: Hoogland, Jeroen
name: Groenhof, T Katrien J
name: Brandjes, Menno
name: Jacobs, John JL
name: Bots, Michiel L
name: Asselbergs, Folkert W
name: Moons, Karel GM
name: Debray, Thomas PA
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applications (stat.AP)
subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: Use of prediction models is widely recommended by clinical guidelines, but usually requires complete information on all predictors that is not always available in daily practice. We describe two methods for real-time handling of missing predictor values when using prediction models in practice. We compare the widely used method of mean imputation (M-imp) to a method that personalizes the imputations by taking advantage of the observed patient characteristics. These characteristics may include both prediction model variables and other characteristics (auxiliary variables). The method was implemented using imputation from a joint multivariate normal model of the patient characteristics (joint modeling imputation; JMI). Data from two different cardiovascular cohorts with cardiovascular predictors and outcome were used to evaluate the real-time imputation methods. We quantified the prediction model's overall performance (mean squared error (MSE) of linear predictor), discrimination (c-index), calibration (intercept and slope) and net benefit (decision curve analysis). When compared with mean imputation, JMI substantially improved the MSE (0.10 vs. 0.13), c-index (0.70 vs 0.68) and calibration (calibration-in-the-large: 0.04 vs. 0.06; calibration slope: 1.01 vs. 0.92), especially when incorporating auxiliary variables. When the imputation method was based on an external cohort, calibration deteriorated, but discrimination remained similar. We recommend JMI with auxiliary variables for real-time imputation of missing values, and to update imputation models when implementing them in new settings or (sub)populations.
description: 17 pages, 6 figures, to be published in European Heart Journal - Digital Health, accepted for MEMTAB 2020 conference
Non-equilibrium Thermodynamics of Spacetime
Creators: name: Eling, Christopher
name: Guedens, Raf
name: Jacobson, Ted
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: It has previously been shown that the Einstein equation can be derived from the requirement that the Clausius relation dS = dQ/T hold for all local acceleration horizons through each spacetime point, where dS is one quarter the horizon area change in Planck units, and dQ and T are the energy flux across the horizon and Unruh temperature seen by an accelerating observer just inside the horizon. Here we show that a curvature correction to the entropy that is polynomial in the Ricci scalar requires a non-equilibrium treatment. The corresponding field equation is derived from the entropy balance relation dS =dQ/T+dS_i, where dS_i is a bulk viscosity entropy production term that we determine by imposing energy-momentum conservation. Entropy production can also be included in pure Einstein theory by allowing for shear viscosity of the horizon.
description: 4 pages. Dedicated to Rafael Sorkin on the occasion of his 60th birthday
A characterisation of Reward Geometry
Creators: name: Yan, Yan
Publisher: name: OSF Registries
Year: 2024
Subjects: subject: Psychiatry and Psychology
subject: Medicine and Health Sciences
subject: Life Sciences
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: This is the pre-registration for the 5th study under the title "A characterisation of Reward Geometry". In this study, we will use a different underlying reward geometry (p = q = 10) in contrast to the Euclidean geometry in the previous studies.
Grammar-Based Random Walkers in Semantic Networks
Creators: name: Rodriguez, Marko A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences
subject: I.2.4; F.2.1; F.2.2

description: Semantic networks qualify the meaning of an edge relating any two vertices. Determining which vertices are most "central" in a semantic network is difficult because one relationship type may be deemed subjectively more important than another. For this reason, research into semantic network metrics has focused primarily on context-based rankings (i.e. user prescribed contexts). Moreover, many of the current semantic network metrics rank semantic associations (i.e. directed paths between two vertices) and not the vertices themselves. This article presents a framework for calculating semantically meaningful primary eigenvector-based metrics such as eigenvector centrality and PageRank in semantic networks using a modified version of the random walker model of Markov chain analysis. Random walkers, in the context of this article, are constrained by a grammar, where the grammar is a user defined data structure that determines the meaning of the final vertex ranking. The ideas in this article are presented within the context of the Resource Description Framework (RDF) of the Semantic Web initiative.
description: First draft of manuscript originally written in November 2006
Φιλοσοφία της θρησκείας μετά τον Wittgenstein, D. Z. Phillips: θρησκευτική πίστη και το πρόβλημα του κακού.
Creators: name: Κολτσίδας, Χρήστος Παναγιώτη
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: Φιλοσοφία της θρησκείας
Θρησκευτική πίστη
Πρόβλημα του κακού
Philosophy of religion
Religious faith
Problem of evil

description: Σκοπός αυτής της εργασίας είναι η διερεύνηση της φιλοσοφικής προσέγγισης του Dewi Zephaniah Phillips στο πλαίσιο της σύγχρονης αναλυτικής φιλοσοφίας της θρησκείας. Αρχικά, παρουσιάζεται η μεθοδο¬λογία του Phillips επηρεασμένη από το έργο του Ludwig Wittgenstein. Η εργασία εξετάζει, συνεπώς, μια βιττγκενσταϊνιανή φιλοσοφία της θρησκείας και τα αποτελέσματα της εφαρμογής της. Αναφορά γίνεται επίσης στον “βιττγκενσταϊνιανό φιντεϊσμό”, μια φιλοσοφική τάση για την οποία ο Phillips κατηγορήθηκε από τον Kai Nielsen. Από την άλλη, και σε αντίθεση με την παραπάνω τάση, παρουσιάστηκε αυτό που ο ίδιος ο Phillips περιέγραψε ως “θεωρησιακή φιλοσοφία της θρησκείας”. Εξετάζεται επιπλέον η μεθοδο¬λογική και ηθική διάσταση της εφαρμογής μιας τέτοιας θεωρησιακής φιλοσοφίας στη μελέτη των σχέσεων της θρησκευτικής πίστης με το πρόβλημα του κακού. Μέσω της εξέτασης του προβλήματος του κακού και της θρησκευτικής γλώσσας, φάνηκε η διαφορά της βιττγκενσταϊνιανής προσέγγισης του Phillips με την αναλυτική φιλοσοφία της θρησκείας, τον φιλοσοφικό θεϊσμό και τη θεϊστική παράδοση συγκρότησης θεοδικιών.
description: The purpose of this study is to examine the philosophical approach of Dewi Zephaniah Phillips in the context of contemporary analytic philosophy of religion, starting off with a presentation of Phillips’ methodology influenced by Ludwig Wittgenstein’s thought. Therefore, this study examines a Wit¬tgensteinian philosophy of religion and the results of its application. A fur¬ther reference is made to “Wittgensteinian Fideism”, a philosophical tenden¬cy for which Phillips was accused by Kai Nielsen. Conversely, and in contrast to this tendency, a definition of what Phillips himself called “Contemplative Philosophy of Religion” is also presented. The methodological and ethical dimension of the application of such a contemplative philosophy in the research of the relations between religious faith and the problem of evil is additionally examined. Considering the problem of evil and religious lan¬guage, Phillips’ Wittgensteinian approach is shown to be in dissension with certain aspects of the analytic philosophy of religion, philosophical theism, and the theistic tradition of theodicy formation.
Generating Knowledge Graphs by Employing Natural Language Processing and Machine Learning Techniques within the Scholarly Domain
Creators: name: Dessì, Danilo
name: Osborne, Francesco
name: Recupero, Diego Reforgiato
name: Buscaldi, Davide
name: Motta, Enrico
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: The continuous growth of scientific literature brings innovations and, at the same time, raises new challenges. One of them is related to the fact that its analysis has become difficult due to the high volume of published papers for which manual effort for annotations and management is required. Novel technological infrastructures are needed to help researchers, research policy makers, and companies to time-efficiently browse, analyse, and forecast scientific research. Knowledge graphs i.e., large networks of entities and relationships, have proved to be effective solution in this space. Scientific knowledge graphs focus on the scholarly domain and typically contain metadata describing research publications such as authors, venues, organizations, research topics, and citations. However, the current generation of knowledge graphs lacks of an explicit representation of the knowledge presented in the research papers. As such, in this paper, we present a new architecture that takes advantage of Natural Language Processing and Machine Learning methods for extracting entities and relationships from research publications and integrates them in a large-scale knowledge graph. Within this research work, we i) tackle the challenge of knowledge extraction by employing several state-of-the-art Natural Language Processing and Text Mining tools, ii) describe an approach for integrating entities and relationships generated by these tools, iii) show the advantage of such an hybrid system over alternative approaches, and vi) as a chosen use case, we generated a scientific knowledge graph including 109,105 triples, extracted from 26,827 abstracts of papers within the Semantic Web domain. As our approach is general and can be applied to any domain, we expect that it can facilitate the management, analysis, dissemination, and processing of scientific knowledge.
description: Accepted for publication in Future Generation Computer Systems journal - Special Issue on Machine Learning and Knowledge Graphs
Υπολογιστική Ανάλυση της Γονιδιακής Σύνθεσης στα Πρωτόζωα
Creators: name: Γκράνα, Μαρία Αλέξανδρου
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: Βλεφαριδοφόρα Πρωτόζωα
Γονιδιακή Σύνθεση
DNA
Ciliated Protozoa
Gene Assembly

description: Σκοπός της παρούσας διπλωματικής εργασίας είναι η περιγραφή και η υπολογιστική ανάλυση της γονιδιακής σύνθεσης στα βλεφαριδοφόρα πρωτόζωα. Η γονιδιακή σύνθεση αποτελεί το πιο πολύπλοκο παράδειγμα επεξεργασίας DNA που είναι γνωστό στη φύση. Αρχικά παρουσιάζονται κάποιες βασικές έννοιες Βιολογίας, αλλά και το απαραίτητο μαθηματικό υπόβαθρο για τις επόμενες ενότητες. Στο τρίτο κεφάλαιο γίνεται περιγραφή των δύο βασικών μοριακών μοντέλων για τη γονιδιακή σύνθεση. Το τέταρτο κεφάλαιο, το οποίο είναι και το κύριο μέρος της διπλωματικής αυτής, αποτελεί την ανάλυση κάποιων μαθηματικών μοντέλων που έχουν προταθεί για τη γονιδιακή σύνθεση. Σε αυτό το κεφάλαιο γίνεται περιγραφή της αναπαράστασης γονιδίων και ορίζονται οι κανόνες γονιδιακής σύνθεσης σε λέξεις και γραφήματα, ενώ στη συνέχεια περιγράφεται η διαδικασία της γονιδιακής σύνθεσης και τα χαρακτηριστικά αυτής. Τέλος, στο πέμπτο κεφάλαιο παρουσιάζονται κάποιες ιδιότητες της γονιδιακής σύνθεσης, οι οποίες διατηρούνται αναλλοίωτες και στα δύο μοριακά μοντέλα.
description: The goal of this Master Thesis is the description and computational study of gene assembly in ciliated protozoa. Gene assembly is the most complex example of DNA processing known in nature. First, some basic notions in Biology are presented, as well as the necessary mathematical background for the following sections. In Chapter 3, two of the most studied molecular models for gene assembly are introduced. Chapter 4 is the main part of this Master Thesis and forms the analysis of several mathematical approaches used in studying these molecular models. The topics discussed in more detail include the representations for ciliate genes, the assembly operations on strings and graphs and some basic features of gene assembly. Finally, in Chapter 5, some properties of the gene assembly process, called invariants, that hold independently of molecular model and assembly strategy, are discussed.
Confining properties of 2-color QCD at finite density
Creators: name: Conradi, S.
name: D'Alessandro, A.
name: D'Elia, M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We study the confining properties of QCD with two colors across the finite density phase transition. A disorder parameter detecting dual superconductivity of the QCD vacuum is used as a probe for the confinement/deconfinement phase transition.
description: 7 pages, 3 figures, talk presented at Lattice 2006 (High Temperature and Density)
Pilot Study 2 - Ideological Differences in Error Sensitivity
Creators: name: E. Ashby Plant
name: Kievit, Douglas
name: Mallinas, Stephanie
Publisher: name: OSF Registries
Year: 2023
Subjects: subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: We will conduct a pilot study to test items we devised to be low, ambiguous, and high in threat.
Phase Squeezing of Quantum Hypergraph States
Creators: name: Sarkar, Ramita
name: Dutta, Supriyo
name: Banerjee, Subhashish
name: Panigrahi, Prasanta K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Combinatorics (math.CO)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Corresponding to a hypergraph $G$ with $d$ vertices, a quantum hypergraph state is defined by $|G\rangle = \frac{1}{\sqrt{2^d}}\sum_{n = 0}^{2^d - 1} (-1)^{f(n)} |n \rangle$, where $f$ is a $d$-variable Boolean function depending on the hypergraph $G$, and $|n \rangle$ denotes a binary vector of length $2^d$ with $1$ at $n$-th position for $n = 0, 1, \dots (2^d - 1)$. The non-classical properties of these states are studied. We consider annihilation and creation operator on the Hilbert space of dimension $2^d$ acting on the number states $\{|n \rangle: n = 0, 1, \dots (2^d - 1)\}$. The Hermitian number and phase operators, in finite dimensions, are constructed. The number-phase uncertainty for these states leads to the idea of phase squeezing. We establish that these states are squeezed in the phase quadrature only and satisfy the Agarwal-Tara criterion for non-classicality, which only depends on the number of vertices of the hypergraphs. We also point out that coherence is observed in the phase quadrature.
The Hot Interstellar Medium of Normal Elliptical Galaxies. I. A Chandra Gas Gallery and Comparison of X-ray and Optical Morphology
Creators: name: Diehl, Steven
name: Statler, Thomas S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present an X-ray analysis of 54 normal elliptical galaxies in the Chandra archive and isolate their hot gas component from the contaminating point source emission, allowing us to conduct, for the first time, a morphological analysis on the gas alone. A comparison with optical images and photometry shows that the hot gas morphology has surprisingly little in common with the shape of the stellar distribution. We observe no correlation between optical and X-ray ellipticities in the inner regions where stellar mass dominates over dark matter. A shallow correlation would be expected if the gas had settled into hydrostatic equilibrium with the gravitational potential. Instead, observed X-ray ellipticities exceed optical ellipticities in many cases. We exclude rotation as the dominant factor to produce the gas ellipticities. The gas appears disturbed, and hydrostatic equilibrium is the exception rather than the rule. Nearly all hydrostatic models can be ruled out at 99% confidence, based of their inability to reproduce the optical-X-ray correlation and large X-ray ellipticities. Hydrostatic models not excluded are those in which dark matter either dominates over stellar mass inside the inner half-light radius or has a prominently cigar-shaped distribution, both of which can be ruled out on other grounds. We conclude that, even for rather X-ray faint elliptical galaxies, the gas is at least so far out of equilibrium that it does not retain any information about the shape of the potential, and that X-ray derived radial mass profiles may be in error by factors of order unity.
description: 20 Pages, 8 Figures (3 new), extended discussion, accepted to ApJ, high-resolution version with additional online-only figures available at http://www.phy.ohiou.edu/~diehl/Publications/
Penetration of CFRP laminates by cylindrical indenters
Creators: name: Ursenbach, Daniel O.
Publisher: name: University of British Columbia
Year: 2009

description: The main focus of this thesis has been towards understanding the local penetration behaviour of a CFRP laminate undergoing quasi-static out-of-plane loading. This information is necessary for predicting dynamic impact behaviour. An experimental program was performed that characterized the damage mechanisms occurring during penetration and confirmed the validity of model assumptions. The principal test consisted of a 7.62 mm diameter blunt-nosed cylindrical indenter penetrating various thicknesses of CFRP coupons supported over a rectangular opening. Even though some additional experimental data is yet required for a complete study, the necessary characterization tests have been identified, and, in some cases, developed. A simple analytical model to describe the quasi-static penetration process was developed giving an approximate prediction of the force-displacement behaviour. This model was based upon actual physical phenomena and used an approximate energy method to predict the displacement profile of the delaminated plate. Good correlation was found between the predicted delamination sizes and those measured using C-scans.
Διερεύνηση του τύπου του αθλήματος και των διατροφικών συνηθειών στην εμφάνιση σωματικής δυσαρέσκειας, σε κορίτσια 12-14 ετών
Creators: name: Θώμα, Φανή Ιωάννη
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: Σωματική Δυσαρέσκεια
Ομαδικά Αθλήματα
Κορίτσια
Body Dissatisfaction
Team Sports
Girls

description: Η παρούσα εργασία διερευνά τον τύπο του αθλήματος (ειδικότερα, τα ομαδικά αθλήματα) ως παράγοντα εμφάνισης σωματικής δυσαρέσκειας και παρακίνησης για απώλεια βάρους σε έφηβα κορίτσια με φυσιολογικό δείκτη μάζας σώματος. Το σύνολο του δείγματος αποτέλεσαν 494 κορίτσια ηλικίας 12-14 χρονών (402 αθλήτριες ομαδικών αθλημάτων και 92 μη αθλήτριες). Δεν διαπιστώθηκαν στατιστικά σημαντικές διαφορές μεταξύ αθλητριών και μη αθλητριών σε όλα τα ερωτηματολόγια. Από τα αποτελέσματα φαίνεται πως η εμπλοκή με τον αθλητισμό δεν αποτελεί παράγοντα διαφοροποίησης της σωματικής δυσαρέσκειας και της παρακίνησης για απώλεια βάρους σε κορίτσια με φυσιολογικό ΔΜΣ. Μολονότι, βιολογικοί παράγοντες όπως το σωματικό βάρος, το φύλο και η ηλικία είναι παρόμοιοι, ο αθλητισμός και η συστηματική ενασχόληση με την άσκηση φαίνεται ότι δεν αποτέλεσε παράγοντα ικανό να διαφοροποιήσει τα αποτελέσματα. Τα αποτελέσματα ίσως να ενισχύονται και από το γεγονός ότι οι αθλήτριες συμμετείχαν σε αθλήματα που η εμφάνιση δεν αποτελεί παράγοντα αύξησης της απόδοσης.
description: This study explores sport (more specifically team sports) as a factor which contributes to the manifestation of body dissatisfaction and motivates teen-age girls, with normal body mass index, to lose weight. Four hundred and ninety four girls, aging 13 to 14 years took part in the study. Participants divided in two groups. The first one consisted of teen-age athletes (N=402) from four different team sports and the second composed of none athletes (N=92). No statistically significant differences were found between the two groups. From the results shown that involvement in sport is not a differentiating factor of body dissatisfaction and weight loss motivation in girls with normal BMI. Although, biological factors such as body weight, gender and age are similar, the sports and the systematic involvement with exercise it seems that was no factor capable to differentiate the results. The results may be reinforced by the fact that the athletes involved in sports that the performance is not a factor to increase efficiency.
Modeling of the Super-Eddington Phase for Classical Novae: Five IUE Novae
Creators: name: Kato, Mariko
name: Hachisu, Izumi
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a light curve model for the super-Eddington luminosity phase of five classical novae observed with IUE. Optical and UV light curves are calculated based on the optically thick wind theory with a reduced effective opacity for a porous atmosphere. Fitting a model light curve with the UV 1455 Ålight curve, we determine the white dwarf mass and distance to be (1.3 M_sun, 4.4 kpc) for V693 CrA, (1.05 M_sun, 1.8 kpc) for V1974 Cyg, (0.95 M_sun, 4.1 kpc) for V1668 Cyg, (1.0 M_sun, 2.1 kpc) for V351 Pup, and (1.0 M_sun, 4.3 kpc) for OS And.
description: 9 pages including 8 figures, to appear in the Astrophysical Journal
Wartime signaling to foreign audiences
Creators: name: Pike, Ryan
Publisher: name: OSF Registries
Year: 2024
Subjects: subject: Comparative Politics
subject: Political Science
subject: FOS: Political science
subject: International Relations
subject: Social and Behavioral Sciences

description: How do relevant parties communicate with the public about ongoing geopolitical crises? And how do different combinations of sources and frames affect individual beliefs and engagement? In the wake of a geopolitical crisis, individuals are presented with a wide variety information -- especially through social media. This pre-analysis plan details our experimental design, hypotheses, and analysis strategy for a survey experiment using mock Facebook posts to assess the impact of blame attribution and information source on respondents geopolitical beliefs. By using a factorial design, we adjudicate between competing hypotheses about the impact of signaling and preference formation in IR: (1) costly signalling, (2) motivated reasoning, and (3) political knowledge. The survey experiment will be run in Hungary in late March/early April 2023.
Discovery of a Probable Physical Triple Quasar
Creators: name: Djorgovski, S. G.
name: Courbin, F.
name: Meylan, G.
name: Sluse, D.
name: Thompson, D. J.
name: Mahabal, A.
name: Glikman, E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report the discovery of the first known probable case of a physical triple quasar (not a gravitational lens). A previously known double system, QQ 1429-008 at z = 2.076, is shown to contain a third, fainter QSO component at the same redshift within the measurement errors. Deep optical and IR imaging at the Keck and VLT telescopes has failed to reveal a plausible lensing galaxy group or a cluster, and moreover, we are unable to construct any viable lensing model which could lead to the observed distribution of source positions and relative intensities of the three QSO image components. Furthermore, there are hints of differences in broad-band spectral energy distributions of different components, which are more naturally understood if they are physically distinct AGN. Therefore, we conclude that this system is most likely a physical triple quasar, the first such close QSO grouping known at any redshift. The projected component separations in the restframe are ~ 30 - 50 kpc for the standard concordance cosmology, typical of interacting galaxy systems. The existence of this highly unusual system supports the standard picture in which galaxy interactions lead to the onset of QSO activity.
description: Submitted to ApJL, LaTeX, 13 pages, 4 eps figures, all included