cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
On the ultra-high energy cosmic ray horizon
Creators: name: Harari, D.
name: Mollerach, S.
name: Roulet, E.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We compute the ultra-high energy cosmic ray horizon, i.e. the distance up to which cosmic ray sources may significantly contribute to the fluxes above a certain threshold on the observed energies. We obtain results both for proton and heavy nuclei sources.
description: references added, matches version published in JCAP
Viewpoint invariant surface reconstruction from gradient data
Creators: name: King, Yossarian Y.
Publisher: name: University of British Columbia
Year: 2008

description: Surface reconstruction recovers complete and coherent surfaces from scattered, noisy data. Viewpoint invariant reconstruction allows seamless combination of multiple views, recognition of objects in arbitrary poses, and consistent quantitative measurements. Viewpoint invariant reconstruction from gradient data is studied in a variational framework. An invariant smoothing functional based on the bending energy of a thin plate is derived. The functional is nonconvex, and three convex approximations are presented. An invariant but nonconvex metric for measuring fit to gradient data is given, based on the angle between unit surface normals. A convex constraint metric is obtained from the second order Taylor series approximation. The chief goal of this thesis is to evaluate and compare the different functionals, with viewpoint invariance the prime evaluation criterion. The approximately invariant regularizing functionals are discretized on a regular grid using a finite difference method. Reconstruction from gradient data proceeds in three stages: interpolation of the initial data; smoothing of the gradient map; and recovery of height from gradient. Data were generated for multiple views of a synthetic surface. Each reconstruction method is applied to recover a surface for each view. The viewpoint invariance of the reconstruction is evaluated by measuring, qualitatively and quantitatively, how well the surfaces from different views match up. Experiments are performed with real data from photometric stereo in the context of building 3D object models by fitting together surfaces reconstructed from multiple views. Viewpoint invariance is important in order for the different surfaces to fit together. Multiple views of a simple ellipsoid of known shape allows accurate evaluation of the results, while data gathered from a doll's face provides more of a challenge to the reconstruction techniques.
Heterogeneous Dynamics, Marginal Stability and Soft Modes in Hard Sphere Glasses
Creators: name: Brito, Carolina
name: Wyart, Matthieu
Publisher: name: arXiv
Year: 2006
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In a recent publication we established an analogy between the free energy of a hard sphere system and the energy of an elastic network [1]. This result enables one to study the free energy landscape of hard spheres, in particular to define normal modes. In this Letter we use these tools to analyze the activated transitions between meta-bassins, both in the aging regime deep in the glass phase and near the glass transition. We observe numerically that structural relaxation occurs mostly along a very small number of nearly-unstable extended modes. This number decays for denser packing and is significantly lowered as the system undergoes the glass transition. This observation supports that structural relaxation and marginal modes share common properties. In particular theoretical results [2, 3] show that these modes extend at least on some length scale $l^*\sim (ϕ_c-ϕ)^{-1/2}$ where $ϕ_c$ corresponds to the maximum packing fraction, i.e. the jamming transition. This prediction is consistent with very recent numerical observations of sheared systems near the jamming threshold [4], where a similar exponent is found, and with the commonly observed growth of the rearranging regions with compression near the glass transition.
description: 6 pages, improved version
Hidden qubit cluster states
Creators: name: Pantaleoni, Giacomo
name: Baragiola, Ben Q.
name: Menicucci, Nicolas C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Continuous-variable cluster states (CVCSs) can be supplemented with Gottesman-Kitaev-Preskill (GKP) states to form a hybrid cluster state with the power to execute universal, fault-tolerant quantum computing in a measurement-based fashion. As the resource states that comprise a hybrid cluster state are of a very different nature, a natural question arises: Why do GKP states interface so well with CVCSs? To answer this question, we apply the recently introduced subsystem decomposition of a bosonic mode, which divides a mode into logical and gauge-mode subsystems, to three types of cluster state: CVCSs, GKP cluster states, and hybrid CV-GKP cluster states. We find that each of these contains a "hidden" qubit cluster state across their logical subsystems, which lies at the heart of their utility for measurement-based quantum computing. To complement the analytical approach, we introduce a simple graphical description of these CV-mode cluster states that depicts precisely how the hidden qubit cluster states are entangled with the gauge modes, and we outline how these results would extend to the case of finitely squeezed states. This work provides important insight that is both conceptually satisfying and helps to address important practical issues like when a simpler resource (such as a Gaussian state) can stand in for a more complex one (like a GKP state), leading to more efficient use of the resources available for CV quantum computing.
description: 14 pages, 1 figure
Cascading Dynamics in Modular Networks
Creators: name: Galstyan, Aram
name: Cohen, Paul
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: In this paper we study a simple cascading process in a structured heterogeneous population, namely, a network composed of two loosely coupled communities. We demonstrate that under certain conditions the cascading dynamics in such a network has a two--tiered structure that characterizes activity spreading at different rates in the communities. We study the dynamics of the model using both simulations and an analytical approach based on annealed approximation, and obtain good agreement between the two. Our results suggest that network modularity might have implications in various applications, such as epidemiology and viral marketing.
description: 5 pages, 4 figures
Language-based Decisions
Creators: name: Bjorndahl, Adam
name: Halpern, Joseph Y.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: In Savage's classic decision-theoretic framework, actions are formally defined as functions from states to outcomes. But where do the state space and outcome space come from? Expanding on recent work by Blume, Easley, and Halpern (BEH), we consider a language-based framework in which actions are identified with (conditional) descriptions in a simple underlying language, while states and outcomes (along with probabilities and utilities) are constructed as part of a representation theorem. Our work expands the role of language from that of BEH by using it not only for the conditions that determine which actions are taken, but also the effects. More precisely, we take the set of actions to be built from those of the form "do(phi)", for formulas phi in the underlying language. This presents a problem: how do we interpret the result of do(phi) when phi is underspecified (i.e., compatible with multiple states)? We answer this using tools familiar from the semantics of counterfactuals: roughly speaking, do(phi) maps each state to the "closest" phi-state. This notion of "closest" is also something we construct as part of the representation theorem; in effect, then, we prove that (under appropriate assumptions) the agent is acting as if each underspecified action is first made definite and then evaluated (i.e., by maximizing expected utility). Of course, actions in the real world are often not presented in a fully precise manner, yet agents reason about and form preferences among them all the same. Our work brings the abstract tools of decision theory into closer contact with such real-world scenarios.
description: In Proceedings TARK 2021, arXiv:2106.10886
title: The securitisation of Islam in the US post-9/11 : indirect speech acts, "everyday" security and the logic of remoteness
Creators: name: Eroukhmanoff, Clara
Publisher: name: University of St Andrews
publisherIdentifier: https://ror.org/02wn5qz54
publisherIdentifierScheme: ROR
Year: 2016

description: The thesis critically examines the processes by which Islam has been securitised in the US post-9/11. I begin by asking how this securitisation succeeded, given that two of the most powerful actors in the world, G.W Bush and Obama, have repeatedly avoided using the language of existential threat when speaking about Islam. I argue that different layers of language need to be peeled away within a sociological approach to securitisation. The linguistic approach adopted in this work challenges the conventional view of securitisation by moving back and forth between the knowledge-world of intersubjectivity and a broader field of practices, and the knowledge-world of mental states. I contend that Islam and the Muslim population have been securitised directly in the context of “the everyday,” indirectly in the context of “the exceptional” and that security practitioners in both exceptional and everyday fields of security securitise Islam by following the logic of remoteness. In the former, actors such as the police use everyday police tactics to monitor the Muslim population. In the latter, securitising actors such as G.W. Bush and Obama, or in other words, actors with “symbolic power,” securitise indirectly by using indirect speech acts and euphemisms. The indirect securitisation provides the most innovative contribution of the thesis by developing the idea that the discursive strategy of “exceptional” securitising actors relies on indirectness to convey a securitising message, which enables them to “save face” if the securitisation fails. Indirect speech acts are thus strategic securitising devices, which should be grasped by the securitisation literature. The logic of remoteness operates through a consequentialist framework, which I seek to contest by providing a critical contribution to the securitisation of Islam in the US and by opening to the role of emotions in critical securitisation studies.
SoPrA: Fabrication & Dynamical Modeling of a Scalable Soft Continuum Robotic Arm with Integrated Proprioceptive Sensing
Creators: name: Toshimitsu, Yasunori
name: Wong, Ki Wan
name: Buchner, Thomas
name: Katzschmann, Robert
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Due to their inherent compliance, soft robots are more versatile than rigid linked robots when they interact with their environment, such as object manipulation or biomimetic motion, and considered the key element in introducing robots to everyday environments. Although various soft robotic actuators exist, past research has focused primarily on designing and analyzing single components. Limited effort has been made to combine each component to create an overall capable, integrated soft robot. Ideally, the behavior of such a robot can be accurately modeled, and its motion within an environment uses its proprioception, without requiring external sensors. This work presents a design and modeling process for a Soft continuum Proprioceptive Arm (SoPrA) actuated by pneumatics. The integrated design is suitable for an analytical model due to its internal capacitive flex sensor for proprioceptive measurements and its fiber-reinforced fluidic elastomer actuators. The proposed analytical dynamical model accounts for the inertial effects of the actuator's mass and the material properties, and predicts in real-time the soft robot's behavior. Our estimation method integrates the analytical model with proprioceptive sensors to calculate external forces, all without relying on an external motion capture system. SoPrA is validated in a series of experiments demonstrating the model's and sensor's accuracy in estimation. SoPrA will enable soft arm manipulation including force sensing while operating in obstructed environments that disallows exteroceptive measurements.
description: 8 pages, 8 figures, 2021 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2021). For associated video, see https://youtu.be/bTD2H4qhzpg
title: Endangered Species Act Section 7(a)(2) Biological for NMFS Sustainable Fisheries Division’s determinations on salmon and steelhead hatchery programs in Puget Sound under limit 6 of the ESA 4(d) rules for listed salmon and steelhead in Puget Sound (50 CFR § 223.203(b)(6))
Creators: name: United States. National Marine Fisheries Service. West Coast Region
Publisher: name: United States. National Marine Fisheries Service. West Coast Region
Year: 2020

description: ESA Section 7 Consultation ; WCRO-2020-01366
An Awareness Epistemic Framework for Belief, Argumentation and Their Dynamics
Creators: name: Burrieza, Alfredo
name: Yuste-Ginel, Antonio
Publisher: name: arXiv
Year: 2021
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: The notion of argumentation and the one of belief stand in a problematic relation to one another. On the one hand, argumentation is crucial for belief formation: as the outcome of a process of arguing, an agent might come to (justifiably) believe that something is the case. On the other hand, beliefs are an input for argument evaluation: arguments with believed premisses are to be considered as strictly stronger by the agent to arguments whose premisses are not believed. An awareness epistemic logic that captures qualified versions of both principles was recently proposed in the literature. This paper extends that logic in three different directions. First, we try to improve its conceptual grounds, by depicting its philosophical foundations, critically discussing some of its design choices and exploring further possibilities. Second, we provide a (heretofore missing) completeness theorem for the basic fragment of the logic. Third, we study, using techniques from dynamic epistemic logic, how different forms of information change can be captured in the framework.
description: In Proceedings TARK 2021, arXiv:2106.10886. The research activity of Antonio Yuste-Ginel has been partially funded by the predoctoral grant no. MECD-FPU 2016/04113 of Ministerio de Universidades (Spain)
Ansatz from Non-Linear Optics Applied to Trapped Bose-Einstein Condensates
Creators: name: Keceli, Murat
name: Ilday, F. O.
name: Oktel, M. O.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: A simple analytical ansatz, which has been used to describe the intensity profile of the similariton laser (a laser with self-similar propagation of ultrashort pulses), is used as a variational wave function to solve the Gross-Pitaevskii equation for a wide range of interaction parameters. The variational form interpolates between the noninteracting density profile and the strongly interacting Thomas-Fermi profile smoothly. The simple form of the ansatz is modified for both cylindrically symmetric and completely anisotropic harmonic traps. The resulting ground-state density profile and energy are in very good agreement with both the analytical solutions in the limiting cases of interaction and the numerical solutions in the intermediate regime.
description: 4 pages, 3 figures, published version
Photonic Band Gap in the Triangular Lattice of BEC vortices
Creators: name: Tasgin, M. E.
name: Mustecaplioglu, O. E.
name: Oktel, M. O.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We investigate the photonic bands of an atomic Bose-Einstein condensate with a triangular vortex lattice. Index contrast between the vortex cores and the bulk of the condensate is achieved through the enhancement of the index via atomic coherence. Frequency dependent dielectric function is used in the calculations of the bands, resulting in photonic band gap widths of a few MHz.
description: 8 pages, 6 figures
Shortening X-ray Pulse Duration via Saturable Absorption
Creators: name: Inoue, Ichiro
name: Inubushi, Yuichi
name: Osaka, Taito
name: Yamada, Jumpei
name: Tamasaku, Kenji
name: Yoneda, Hitoki
name: Yabashi, Makina
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: To shorten the duration of x-ray pulses, we present a nonlinear optical technique using atoms with core-hole vacancies (core-hole atoms) generated by inner-shell photoionization. The weak Coulomb screening in the core-hole atoms results in decreased absorption at photon energies immediately above the absorption edge. By employing this phenomenon, referred to as saturable absorption, we successfully reduce the duration of x-ray free-electron laser pulses (photon energy: 9.000 keV, duration: 6-7 fs, fluence: 2.0-3.5$\times$10$^5$ J/cm$^2$) by $\sim$35%. This finding that core-hole atoms are applicable to nonlinear x-ray optics is an essential stepping stone for extending nonlinear technologies commonplace at optical wavelengths to the hard x-ray region.
Efficient generation of entangled photons by cavity QED
Creators: name: Zhang, X. L.
name: Feng, M.
name: Gao, K. L.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A potential scheme is proposed to generate complete sets of entangled photons in the context of cavity quantum electrodynamics (QED). The scheme includes twice interactions of atoms with cavities, in which the first interaction is made in two-mode optical cavities and the second one exists in a microwave cavity. In the optical cavities the atoms are resonant with the cavity modes, while the detuned interaction of the atoms with a single-mode of the microwave cavity is driven by a classical field. We show that our scheme is carried out with higher efficiency than previeous schemes, and is close to the reach of current technique.
description: 7 pages, 3 figures, to appear in J. Phys. B
Elicitation of ditranstitive constructions
Creators: name: Parker, Verdena
name: Campbell, Amy
name: Escamilla, Ramón
name: Newbold, Lindsey
name: Spence, Justin
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: hup

description: Audio file VP-101107-07: Elicitation of ditranstitive constructions with different classificatory verb stems.
Foundations for Cooperating with Control Noise in the Manipulation of Quantum Dynamics
Creators: name: Shuang, Feng
name: Rabitz, Herschel
name: Dykman, Mark
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: This paper develops the theoretical foundations for the ability of a control field to cooperate with noise in the manipulation of quantum dynamics. The noise enters as run-to-run variations in the control amplitudes, phases and frequencies with the observation being an ensemble average over many runs as is commonly done in the laboratory. Weak field perturbation theory is developed to show that noise in the amplitude and frequency components of the control field can enhance the process of population transfer in a multilevel ladder system. The analytical results in this paper support the point that under suitable conditions an optimal field can cooperate with noise to improve the control outcome.
description: submitted to Phys. Rev. E
Διάδοση Ψευδών Ειδήσεων σε Μη Κατευθυνόμενα Δίκτυα
Creators: name: Κωνσταντινίδης, Αντώνιος Αλέξανδρου
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: Μη Κατευθυνόμενα Δίκτυα
Ψευδής είδηση
Undirected Networks
Subjective Logic
Fake News

description: Μοντελοποιείται, με βάση την Subjective Logic, και προσομοιώνεται η διάδοση μιας ψευδούς ειδήσεως καθώς και η διάδοση της διάψευσής της σε μη κατευθυνόμενα δίκτυα, των οποίων οι κόμβοι δεν έχουν προηγούμενη γνώση ή γνώμη ή τάση να πιστέψουν κάποια από τις δύο γνώμες, ενώ, όταν δεν λαμβάνουν κάποια σχετική πληροφορία, ξεχνάνε σταδιακά τη γνώμη που έχουν σχηματίσει. Τα βασικό συμπέρασμα είναι ότι στα περισσότερα δίκτυα η πρώτη γνώμη που διαδίδεται, δηλαδή η ψευδής είδηση, επικρατεί στην πλειοψηφία των ατόμων, ενώ η δεύτερη γνώμη, η διάψευση, εφόσον διαδοθεί πολλές φορές, δύναται να προκαλέσει το πολύ κάποιον βαθμό σύγχυσης. Το αποτέλεσμα, όμως, εξαρτάται από το μέγεθος του δικτύου. Εάν το δίκτυο είναι μεγάλο τότε η εξασθένιση της γνώμης των κόμβων είναι τόσο ισχυρή που τελικά δεν επικρατεί καμία γνώμη. Τέλος, στα μικρά Scale-Free δίκτυα, κάτω από συγκεκριμένες προϋποθέσεις, η διάδοση της δεύτερης γνώμης μπορεί να προκαλέσει αύξηση της επιρροής της πρώτης γνώμης
description: The propagation of fake news and its refutation is modeled, based on Subjective Logic, and simulated in undirected networks, whose nodes have no prior knowledge or opinion or bias towards one of the two opinions, while, when they don’t receive any relevant information, they gradually forget their previous opinion. The main conclusion is that in most networks the first opinion propagated (the fake news) prevails on the majority of persons, while the second opinion (the refutation), if it is propagated many times, has the potential to cause at best a degree of confusion. The results depend on the network’s size. If the network is large the opinion decay is so strong that finally neither opinion prevails. Finally, in small Scale-Free networks, under certain circumstances, the propagation of the second opinion can increase the influence of the first opinion
Deliverable 4.1 Architecture of B2B marketplace and guidelines for add-on design and development
Creators: name: Franke, Marco
Publisher: name: Zenodo
Year: 2023
Subjects: Design & specification of a B2B marketplace for services
Circular Economy Services

description: The carried-out work focuses on the TRICK B2B marketplace architecture specification and on the development of add-on guidelines in the scope of the TRICK project. The inputs of this task are requirements collected in WP1, specification guidelines defined in D2.1, the literature search and the results of the MIRO workshops performed in the scope of T4.1. The outcome of this task is microservice architecture. For each micro-service, a description is given. In addition, the add-on guidelines and the deployment approach are shown in detail
BioLOGIC: Logic Orthogonal gRNA-Implemented Circuits
Creators: name: Cuillery, Emilie
name: Heng, Joseph
name: Jacquot, Vincent
name: Malsot, Paola
name: Meli, Rocco
name: Pulver, Cyril
name: Sarfatis, Ari
name: Steiner, Loïc
name: Steininger, Victor
name: Thouvenin, Grégoire
name: Uran, Axel
name: van Tiel, Nina
Publisher: name: Zenodo
Year: 2015

description: Poster for iGEM 2015 Giant Jamboree by the Ecole Polytechnique Fédérale de Lausanne (EPFL) team.
Collective Argumentation: The Case of Aggregating Support-Relations of Bipolar Argumentation Frameworks
Creators: name: Chen, Weiwei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: In many real-life situations that involve exchanges of arguments, individuals may differ on their assessment of which supports between the arguments are in fact justified, i.e., they put forward different support-relations. When confronted with such situations, we may wish to aggregate individuals' argumentation views on support-relations into a collective view, which is acceptable to the group. In this paper, we assume that under bipolar argumentation frameworks, individuals are equipped with a set of arguments and a set of attacks between arguments, but with possibly different support-relations. Using the methodology in social choice theory, we analyze what semantic properties of bipolar argumentation frameworks can be preserved by aggregation rules during the aggregation of support-relations.
description: In Proceedings TARK 2021, arXiv:2106.10886. Accepted by the 18th conference on theoretical aspects of rationality and knowledge (TARK-2021)
Parallel Core-Shell Metal-Dielectric-Semiconductor Germanium Nanowires for High Current Surround Gate Field Effect Transistors
Creators: name: Zhang, Li
name: Tu, Ryan
name: Dai, Hongjie
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Core-shell germanium nanowire (GeNW) is formed with a single-crystalline Ge core and concentric shells of nitride and silicon passivation layer by chemical vapor deposition (CVD), an Al2O3 gate dielectric layer by atomic layer deposition (ALD) and an Al metal surround-gate (SG) shell by isotropic magnetron sputter deposition. Surround gate nanowire field effect transistors (FETs) are then constructed using a novel self-aligned fabrication approach. Individual SG GeNW FETs show improved switching over GeNW FETs with planar gate stacks owing to improved electrostatics. FET devices comprised of multiple quasi-aligned SG GeNWs in parallel are also constructed. Collectively, tens of SG GeNWs afford on-currents exceeding 0.1mA at low source-drain bias voltages. The self-aligned surround gate scheme can be generalized to various semiconductor nanowire materials.
description: 15 pages, 4 figures, Nano Lett. 2006, in press
The registration of multimodality medical scans
Creators: name: Zuk, Torre Dana
Publisher: name: University of British Columbia
Year: 2008

description: The registration, or alignment, of multiple medical scans can provide a plethora of new information about a patient beyond what can be gained from studying the individual scans in isolation. This added information can increase the accuracy in specifying regions of interest, help in radiation therapy planning, and aid in a myriad of other treatment and diagnostic techniques. However, the registration of the scans is very complex, and no panacea exists for adjusting for the numerous variations and distortions that can occur between scans. This thesis briefly summarizes the current technology of MRI, CT, PET, and SPECT imaging. Possible uses and benefits of using registered data sets are then explained in this context. This is followed by a structured description of the general problem of data registration and a framework that can be used to solve it. Current methods that have been utilized by various researchers are surveyed. The implementation of a surface matching method and the adaptations and innovations that were utilized is described in detail. These are analyzed under diverse test conditions involving both real and simulated data. The surface matching methods that were developed provide an accurate means for the registration of rigid body transformations, although many problems remain to be solved before a robust solution exists.
Acoustic oscillations in rapidly rotating polytropic stars I. Effects of the centrifugal distortion
Creators: name: Lignieres, F.
name: Rieutord, M.
name: Reese, D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A new non-perturbative method to compute accurate oscillation modes in rapidly rotating stars is presented. In this paper, the effect of the centrifugal force is fully taken into account while the Coriolis force is neglected. This assumption is valid when the time scale of the oscillation is much shorter than the inverse of the rotation rate and is expected to be suitable for high radial order p-modes of $δ$ Scuti stars. Axisymmetric p-modes have been computed in uniformly rotating polytropic models of stars. In the frequency and rotation range considered, we found that as rotation increases (i) the asymptotic structure of the non-rotating frequency spectrum is first destroyed then replaced by a new form of organization (ii) the mode amplitude tends to concentrate near the equator (iii) differences with perturbative methods become significant as soon as the rotation rate exceeds about fifteen percent of the Keplerian limit. The implications for the seismology of rapidly rotating stars are then discussed.
description: accepted for publication in A&A
Πλατωνική εσχατολογία: μεταθανάτιος κρίση σε μυθικά συμφραζόμενα
Creators: name: Μουταφίδου, Σιμέλα Κλεάνθη
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: πλατωνικός μύθος
μεταθανάτιος κρίση
μετεμψύχωση
platonic myth
afterlife judgment
reincarnation

description: Στην παρούσα μελέτη επιχειρείται η παρουσίαση του συστήματος της πλατωνικής εσχατολογίας, στο οποίο εσωκλείονται οι σκέψεις του Πλάτωνα περί αθανασίας της ψυχής, θανάτου του σώματος, μεταθανάτιας κρίσης και μετεμψύχωσης. Η μεταθανάτιος πορεία της ψυχής παρουσιάζεται είτε μέσω φιλοσοφικών μύθων (οι μύθοι του Γοργία, του Φαίδωνα και της Πολιτείας), είτε μέσω εσχατολογικών διηγήσεων ή αναφορών (Φαίδρος, Μένων, Απολογία, Πολιτικός, Νόμοι, Τίμαιος). Ο ηθικός τρόπος διαβίωσης (ηθική) αντανακλάται στο επίπεδο της μεταφυσικής, αποδεικνύοντας έτσι τη μείζονα σημασία της προσωπικής ευθύνης για τη μοίρα έκαστης ψυχής μεταθάνατον
description: This thesis attempts to present the system of platonic eschatology, which includes Plato's thoughts on the immortality of the soul, body death, afterlife judgment and the doctrine of reincarnation. The afterlife journey of the soul is presented through philosophical myths (the myth of Gorgias, Phaedon and the Republic), or through eschatological narratives or references (Phaedros, Meno, Apology, Statesman, Laws, Timaeus). Ethical way of living (ethics) is reflected in the level of metaphysics, thus demonstrating personal responsibility for the fate of each soul afterlife
First and second-generation black hole and neutron star mergers in 2+2 quadruples: population statistics
Creators: name: Hamers, Adrian S.
name: Fragione, Giacomo
name: Neunteufel, Patrick
name: Kocsis, Bence
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Recent detections of gravitational waves from mergers of neutron stars (NSs) and black holes (BHs) in the low and high-end mass gap regimes pose a puzzle to standard stellar and binary evolution theory. Mass-gap mergers may originate from successive mergers in hierarchical systems such as quadruples. Here, we consider repeated mergers of NSs and BHs in stellar 2+2 quadruple systems, in which secular evolution can accelerate the merger of one of the inner binaries. Subsequently, the merger remnant may interact with the companion binary, yielding a second-generation merger. We model the initial stellar and binary evolution of the inner binaries as isolated systems. In the case of successful compact object formation, we subsequently follow the secular dynamical evolution of the quadruple system. When a merger occurs, we take into account merger recoil, and model subsequent evolution using direct N-body integration. With different assumptions on the initial properties, we find that the majority of first-generation mergers are not much affected by secular evolution, with their observational properties mostly consistent with isolated binaries. A small subset shows imprints of secular evolution through residual eccentricity in the LIGO band, and retrograde spin-orbit orientations. Second-generation mergers are ~10^7 times less common than first-generation mergers, and can be strongly affected by scattering (i.e., three-body interactions) induced by the first-generation merger. In particular, scattering can account for mergers within the low-end mass gap, although not the high-end mass gap. Also, in a few cases, scattering could explain highly eccentric LIGO sources and negative effective spin parameters.
description: Accepted for publication in MNRAS (updated references). 38 pages, 91 figures. Includes supplementary material appended to the main manuscript
De Re Updates
Creators: name: Cohen, Michael
name: Tang, Wen
name: Wang, Yanjing
Publisher: name: arXiv
Year: 2021
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: In this paper, we propose a lightweight yet powerful dynamic epistemic logic that captures not only the distinction between de dicto and de re knowledge but also the distinction between de dicto and de re updates. The logic is based on the dynamified version of an epistemic language extended with the assignment operator borrowed from dynamic logic, following the work of Wang and Seligman (Proc. AiML 2018). We obtain complete axiomatizations for the counterparts of public announcement logic and event-model-based DEL based on new reduction axioms taking care of the interactions between dynamics and assignments.
description: In Proceedings TARK 2021, arXiv:2106.10886
Deliverable 1.5 Trick requirements
Creators: name: Franke, Marco
Publisher: name: Zenodo
Year: 2022
Subjects: SysML requirement model
functional and not functional requirements of the TRICK platform

description: D1.5 collects and categorize the requirements for the key features needed by the TRICK B2B marketplace, namely traceability, block chain and marketplace services. The requirements are structured and defined from the perspective of the six TRICK services, e.g. PCO, circular assessment, PEF, health protection, social and ethical assessment, A.I. for anti-counterfeiting. The primary outcome of the requirement analysis is to provide a table which contains all extracted requirements from the tasks T1.2 – T1.4 and defines the core functions for the six TRICK services embedded into a B2B marketplace.
Heat transport in giant (exo)planets: a new perspective
Creators: name: Chabrier, Gilles
name: Baraffe, Isabelle
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We explore the possibility that large-scale convection be inhibited over some regions of giant planet interiors, as a consequence of a gradient of composition inherited either from their formation history or from particular events like giant impacts or core erosion during their evolution. Under appropriate circumstances, the redistribution of the gradient of molecular weight can lead to double diffusive layered or overstable convection. This leads to much less efficient heat transport and compositional mixing than large-scale adiabatic convection. We show that this process can explain the abnormally large radius of the transit planet HD209458b and similar objects, and may be at play in some giant planets, with short-period planets offering the most favorable conditions. Observational signatures of this transport mechanism are a large radius and a reduced heat flux output compared with uniformly mixed objects. If our suggestion is correct, it bears major consequences on our understanding of giant planet formation, structure and evolution, including possibly our own jovian planets.
description: To appear in ApJ Letters
H Marks the Spot: Searching for Exotic Production of Higgs + X to Map Out New Physics
Creators: name: Koren, Seth
name: Öktem, Umut
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We propose leveraging our proficiency for detecting Higgs resonances by using the Higgs as a tagging object for new heavy physics. In particular, we argue that searches for exotic Higgs production from decays of color-singlet fields with electroweak charges could beat current searches at the LHC which look for their decays to vectors. As an example, we study the production and decay of vector-like leptons which admit Yukawa couplings with SM leptons. We find that bounds from Run 2 searches are consistent with anywhere from hundreds to many thousands of Higgses having been produced in their decays over the same period, depending on the representation. Dedicated searches for these signatures may thus be able to significantly improve our reach at the electroweak energy frontier.
description: 15 pages, 21 figures
Improving Bi-encoder Document Ranking Models with Two Rankers and Multi-teacher Distillation
Creators: name: Choi, Jaekeol
name: Jung, Euna
name: Suh, Jangwon
name: Rhee, Wonjong
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences
subject: H.3.3

description: BERT-based Neural Ranking Models (NRMs) can be classified according to how the query and document are encoded through BERT's self-attention layers - bi-encoder versus cross-encoder. Bi-encoder models are highly efficient because all the documents can be pre-processed before the query time, but their performance is inferior compared to cross-encoder models. Both models utilize a ranker that receives BERT representations as the input and generates a relevance score as the output. In this work, we propose a method where multi-teacher distillation is applied to a cross-encoder NRM and a bi-encoder NRM to produce a bi-encoder NRM with two rankers. The resulting student bi-encoder achieves an improved performance by simultaneously learning from a cross-encoder teacher and a bi-encoder teacher and also by combining relevance scores from the two rankers. We call this method TRMD (Two Rankers and Multi-teacher Distillation). In the experiments, TwinBERT and ColBERT are considered as baseline bi-encoders. When monoBERT is used as the cross-encoder teacher, together with either TwinBERT or ColBERT as the bi-encoder teacher, TRMD produces a student bi-encoder that performs better than the corresponding baseline bi-encoder. For P@20, the maximum improvement was 11.4%, and the average improvement was 6.8%. As an additional experiment, we considered producing cross-encoder students with TRMD, and found that it could also improve the cross-encoders.
description: 5 pages, 2 figures
Elicitation of word order in copula-type sentences
Creators: name: Parker, Verdena
name: Campbell, Amy
name: Escamilla, Ramón
name: Newbold, Lindsey
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: hup

description: Audio file VP-101107-04: Elicitation of word order in copula-type sentences (for example, 'That man is my older brother.'), followed by a story about the dispersion of Native American people across North America long ago and the arrival of Hupa people in Hoopa Valley, told in English.
Detection of Giant Radio Pulses from the Pulsar PSR B0656+14
Creators: name: Kuzmin, A. D.
name: Ershov, A. A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Giant pulses (GPs) have been detected from the pulsar PSR B0656+14. A pulse that is more intense than the average pulse by a factor of 120 is encountered approximately once in 3000 observed periods of the pulsar. The peak flux density of the strongest pulse, 120 Jy, is a factor of 630 higher than that of the average pulse. The GP energy exceeds the energy of the average pulse by up to a factor of 110, which is comparable to that for other known pulsars with GPs, including the Crab pulsar and the millisecond pulsar PSR B1937+21. The giant pulses are a factor of 6 narrower than the average pulse and are clustered at the head of the average pulse. PSR B0656+14 along with PSR B0031-07, PSR B1112+50, and PSR J1752+2359 belong to a group of pulsars that differ from previously known ones in which GPs have been detected without any extremely strong magnetic field on the light cylinder.
description: 10 pages, 3 figures, 1 table; originally published in Russian in Pis'ma Astron. Zh., 2006, v.32, 650; translated by George Rudnitskii; the English version will be appear in Astronomy Letters
Nonlinear force-free models for the solar corona I. Two active regions with very different structure
Creators: name: Regnier, S.
name: Priest, E. R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: With the development of new instrumentation providing measurements of solar photospheric vector magnetic fields, we need to develop our understanding of the effects of current density on coronal magnetic field configurations. The object is to understand the diverse and complex nature of coronal magnetic fields in active regions using a nonlinear force-free model. From the observed photospheric magnetic field we derive the photospheric current density for two active regions: one is a decaying active region with strong currents (AR8151), and the other is a newly emerged active region with weak currents (AR8210). We compare the three-dimensional structure of the magnetic fields for both active region when they are assumed to be either potential or nonlinear force-free. The latter is computed using a Grad-Rubin vector-potential-like numerical scheme. A quantitative comparison is performed in terms of the geometry, the connectivity of field lines, the magnetic energy and the magnetic helicity content. For the old decaying active region the connectivity and geometry of the nonlinear force-free model include strong twist and strong shear and are very different from the potential model. The twisted flux bundles store magnetic energy and magnetic helicity high in the corona (about 50 Mm). The newly emerged active region has a complex topology and the departure from a potential field is small, but the excess magnetic energy is stored in the low corona and is enough to trigger powerful flares.
description: 11 pages, 11 figures
No Finite Model Property for Logics of Quantified Announcements
Creators: name: van Ditmarsch, Hans
name: French, Tim
name: Galimullin, Rustam
Publisher: name: arXiv
Year: 2021
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: Quantification over public announcements shifts the perspective from reasoning strictly about the results of a particular announcement to reasoning about the existence of an announcement that achieves some certain epistemic goal. Depending on the type of the quantification, we get different formalisms, the most known of which are arbitrary public announcement logic (APAL), group announcement logic (GAL), and coalition announcement logic (CAL). It has been an open question whether the logics have the finite model property, and in the paper we answer the question negatively. We also discuss how this result is connected to other open questions in the field.
description: In Proceedings TARK 2021, arXiv:2106.10886
Αυτεπάγγελτος έλεγχος νομιμότητας των διοικητικών πράξεων και εξουσίες του δικαστή υπό το άρθρο 79 ΚΔΔ
Creators: name: Γαβριηλίδου, Χρυσούλα Λουκά
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: Δημόσιο δίκαιο
Έλεγχος νομιμότητας διοικητικών πράξεων
αυτεπάγγελτος έλεγχος
Public law
Judicial review of administrative acts
ex officio

description: 1. Η παρούσα εργασία πραγματεύεται ζητήματα της έκτασης του δικαιοδοτικού ελέγχου που ασκεί ο δικαστής κατά την εκδίκαση των διαφορών που άγονται ενώπιόν του με το ένδικο βοήθημα της προσφυγής. Η εξουσία του διοικητικού δικαστή κατά τον έλεγχο των προσβαλλόμενων πράξεων, καθορίζεται και οριοθετείται από τη διάταξη του άρθρου 79 Κώδικα Διοικητικής Δικονομίας (ν. 2717/1999). Η νομολογία έχει εμπλουτίσει και διασαφηνίσει το ερμηνευτικό περιεχόμενο της διάταξης, λαμβάνοντας υπόψη και το αντικείμενο των διαφορών που άγονται προς εκδίκαση. Ιδιαίτερη έμφαση κρίνεται σκόπιμο να δοθεί στην αυτεπάγγελτη έρευνα ορισμένων πλημμελειών της διοικητικής πράξης, καθώς το ζήτημα αυτό έχει παρουσιάσει έντονο νομολογιακό ενδιαφέρον με αντίστοιχη περιπτωσιολογία αποφάσεων. Το αντικείμενο της παρούσας αναδεικνύει κρίσιμα ζητήματα που οριοθετούν όχι μόνο την εξουσία του δικαστή κατά την άσκηση της δικαιοδοτικής του αρμοδιότητας, αλλά και την εξουσία του δικαστή έναντι της εκτελεστικής εξουσίας. Γίνεται έτσι μία εκτενής παράθεση νομολογίας, μέσω της οποίας διαφαίνεται η προσπάθεια του διοικητικού δικαστή να οριοθετήσει τις εξουσίες του και να διαμορφώσει το περιεχόμενο των εξουσιών που του αποδίδει η επίμαχη διάταξη κατά τέτοιο τρόπο, ώστε να επέλθει συγκερασμός φαινομενικά ετερόκλητων σκοπών, όπως ενδεικτικά η αποτελεσματική παροχή έννομης προστασίας, η προάσπιση της αρχής της νομιμότητας, η οικονομία της δίκης και η αποφυγή παρελκυστικών τακτικών προς καθυστέρηση αυτής, η αρχή της δικονομικής ισότητας
description: 2. This thesis’ subject matter regards mainly the judicial review’s ambit that administrative judge exerts to administrative acts, when trying a case falling within the category of administrative substantive disputes. The judicial review’s amplitude is mostly defined by article 79 of the Code of Administrative Court Procedure. Based on the latter provision, ordinary administrative courts have produced a rich case law on the most important jurisdictional issues that have arisen. Judicial review of administrative acts’ legality on an ex officio basis is assessed of utmost importance, basically on the grounds that a rich case law is produced on this matter. Issues of separation of powers and specification of the corresponding institutional framework are also highlighted. Considering the above mentioned, a rich case law is cited which designates the judge’s effort to give shape and define his judicial powers, while trying at the same time to compromise ostensibly incongruous principles like the right to fair trial, the principle of legality, trial expedition and procedural equality
How fast can ASN.1 encoding rules go?
Creators: name: Sample, Michael
Publisher: name: University of British Columbia
Year: 2008

description: The tasks of encoding and decoding complex data structures for network transmission are more expensive in terms of processor time and memory usage than any other components of the protocol stack. This problem can be partially addressed by simplifying the network data encoding rules and streamlining their implementation. We examined the performance of four network data representation standards: ASN.1Basic Encoding Rules (BER) and Packed Encoding Rules (PER), Sun Microsystem's External Data Representation (XDR) and HP/Apollo's Network Data Representation (NDR). The sizes of the encoded values produced by each set of encoding rules are compared and several implementations are measured for code size and throughput. To help examine implementation issues, we designed the snacc ASN.1 compiler that produces compile-based (C and C++) and table-based encoders and decoders as well as type tables. The performance of the snacc, UBC CASN1(BER), NIDL(NDR), rpc-gen(XDR) and ISODE(BER) tools was examined as well as a hand-coded PER implementation. The implementation issues investigated include compiled versus table-based encoding and decoding, implementation language (C/C++), buffering techniques and memory management. We found that the areas crucial to efficient encoder and decoder implementations are memory management, buffer management and the overall simplicity of the encoding rules. Table-based encoders and decoders typically have considerably smaller code size but perform less efficiently than their compiled counterparts. In contrast to popular belief, it is possible to implement ASN.1 BER and PER encoders and decoders that perform as well as their NDR and XDR counterparts.