cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Image Spam Errors in the Age of Hyperconnection
Creators: name: Guerrero, Geraldiny
Publisher: name: International Journal for Digital Art History
Year: 2021

description: This essay examines the relevance of the connected digital image to some of our everyday life environments in a hyperconnected society. Image spam conveys an atmosphere of information overload and leaked images traveling at accelerated velocities to be copied, edited, and relinked in digital environments. Internet connectivity is the feature of media culture that enables the coexistence of image spam. This essay offers an account of the infrastructure of connectivity as the physical basis for information technologies in order to situate the pathways, the context, the way of being, and the errors of image spam.
description: International Journal for Digital Art History, No. 7 (2021): Zonas de Contacto: Art History in a Global Network?
title: Test Case Series 1
title: Ablation Workshop Test Case
titleType: AlternativeTitle
Creators: name: Lachaud, Jean R.
name: Martin, Alexandre
name: Cozmuta, Ioana
name: Laub, Bernard
Publisher: name: University of Kentucky
Year: 2011
Subjects: subject: Aerospace Engineering
subject: FOS: Mechanical engineering

description: A simple one-dimensional test case is defined for the purpose of inter-code comparison. This year the focus is set on in-depth physics and chemistry. Material properties, boundary conditions, and output format are provided.
Dynamical spin correlations of the kagome antiferromagnet
Creators: name: Prelovšek, P.
name: Gomilšek, M.
name: Arh, T.
name: Zorko, A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Temperature-dependent dynamical spin correlations, which can be readily accessed via a variety of experimental techniques, hold the potential of offering a unique fingerprint of quantum spin liquids and other intriguing dynamical states. In this work we present an in-depth study of the temperature-dependent dynamical spin structure factor $S({\bf q}, ω)$ of the antiferromagnetic (AFM) Heisenberg spin-1/2 model on the kagome lattice with additional Dzyaloshinskii--Moriya (DM) interactions. Using the finite-temperature Lanczos method on lattices with up to $N = 30$ sites we find that even without DM interactions, chiral low-energy spin fluctuations of the $120^\circ$ AFM order parameter dominate the dynamical response. This leads to a nontrivial frequency dependence of $S({\bf q}, ω)$ and the appearance of a pronounced low-frequency mode at the M point of the extended Brillouin zone. Adding an out-of-plane DM interactions $D^z$ gives rise to an anisotropic dynamical response, a softening of in-plane spin fluctuations, and, ultimately, the onset of a coplanar AFM ground-state order at $D^z > 0.1 J$. Our results are in very good agreement with existing inelastic neutron scattering and temperature-dependent NMR spin-lattice relaxation rate ($1/T_1$) data on the paradigmatic kagome AFM herbertsmithite, where the effect of its small $D^z$ on the dynamical spin correlations is shown to be rather small, as well as with $1/T_1$ data on the novel kagome AFM YCu$_3$(OH)$_6$Cl$_3$, where its substantial $D^z \approx 0.25 J$ interaction is found to strongly affect the spin dynamics.
What can one learn from two-state single molecule trajectories?
Creators: name: Flomenbom, Ophir
name: Klafter, Joseph
name: Szabo, Attila
Publisher: name: arXiv
Year: 2005
Subjects: subject: Subcellular Processes (q-bio.SC)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Biological sciences

description: A time trajectory of an observable that fluctuates between two values (say, on and off), stemming from some unknown multi-substate kinetic scheme, is the output of many single molecule experiments. Here we show that when all successive waiting times along the trajectory are uncorrelated the on and the off waiting time probability density functions (PDFs) contain all the information. By relating the lack of correlation in the trajectory to the topology of kinetic schemes, we can immediately specify those kinetic schemes that are equally consistent with experiment, which means that it is impossible to differentiate between them by any sophisticated analyses of the trajectory. Correlated trajectories, however, contain additional information about the underlying kinetic scheme, and we consider the strategy that one should use to extract it. An example is given on correlations in the activity of individual lipase molecules.
description: Biophys. J., in press (2005)
Alternative approaches of identifying accident prone location
Creators: name: Wang, Charlene
Publisher: name: University of British Columbia
Year: 2009

description: Despite the many advances in highway design, traffic engineering, automobile manufacturing, and police enforcement technologies, many countries around the world still suffer from an ever-increasing problem of traffic accidents. Therefore, there has been a keen interest throughout the world in developing Road Safety Improvement Programs (RSIPs) aimed at: 1) identifying accident-prone locations; 2) diagnosing their problems; and 3) suggesting proper countermeasures. While the success of these programs has varied considerably from one jurisdiction to another, the overall performance of these programs has been less than satisfactory in terms of number of accidents eliminated. The main reason for that is believed to relate to the inadequacy of procedures adopted in the execution of these programs. Most importantly, the faulty identification of accident-prone locations (i.e., identification of locations that are not really accident-prone) seems to be the primary reason behind the lack of success of these programs. This thesis discusses the problems encountered in developing and implementing RSIPs from an engineering perspective. It also describes the efforts in developing new techniques to make these programs more effective in identifying and treating accidentprone locations. Sayed (1995) has described two new techniques for the identification process. The first one is the Modified RSIP that alters the definition of accident-prone locations and introduces the concept of correctable accidents. The second one is the Countermeasure-Based RSIP that starts by identifying prevailing accident patterns and then suggest proper engineering countermeasures, thus effectively reversing the normal flow of procedures in traditional RSIPs. This thesis introduces further refinements to these new techniques. The classification process of accidents in the first method is refined using artificial neural networks and neuro-fuzzy models. Accident prediction models are used to identify over-represented accident patterns in the second method. These refinements significantly improve the results of the two methods. Examples of real-life applications are given and their results are discussed.
title: Kolej metropolitalna jako wyzwanie inwestycyjne i szansza dla regionu
Creators: name: Tomaszewski, Jacek
name: Pazder, Dominika
Publisher: name: Publishing House of Poznan University of Technology
Year: 2023

description: Zeszyty Naukowe Politechniki Poznańskiej. Architektura, Urbanistyka, Architektura Wnętrz, 15, 141-159
Nonequilibrium Temperature and Thermometry in Heat-Conducting Phi-4 Models
Creators: name: Hoover, Wm. G.
name: Hoover, Carol G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We analyze temperature and thermometry for simple nonequilibrium heat-conducting models. We show in detail, for both two- and three-dimensional systems, that the ideal gas thermometer corresponds to the concept of a local instantaneous mechanical kinetic temperature. For the Phi-4 models investigated here the mechanical temperature closely approximates the local thermodynamic equilibrium temperature. There is a significant difference between kinetic temperature and the nonlocal configurational temperature. Neither obeys the predictions of extended irreversible thermodynamics. Overall, we find that kinetic temperature, as modeled and imposed by the Nosé-Hoover thermostats developed in 1984, provides the simplest means for simulating, analyzing, and understanding nonequilibrium heat flows.
description: 20 pages with six figures, revised following review at Physical Review E
title: Test Case Series 3
title: Ablation test-case series #3
titleType: AlternativeTitle
Creators: name: Van Eekelen, Tom
name: Martin, Alexandre
name: Lachaud, Jean
name: Bianchi, Daniele
Publisher: name: University of Kentucky
Year: 2014
Subjects: subject: Aerospace Engineering
subject: FOS: Mechanical engineering

description: Numerical simulation of ablative-material response: code and model comparisons
Cosmological Models with Variable Gravitational and Cosmological constants in $R^{2}$ Gravity
Creators: name: Debnath, P. S.
name: Paul, B. C.
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider the evolution of a flat Friedmann-Roberstson-Walker Universe in a higher derivative theories, including $αR^{2}$ terms to the Einstein-Hilbert action in the presence of a variable gravitational and cosmological constants. We study here the evolution of the gravitational and cosmological constants in the presence of radiation and matter domination era of the universe. We present here new cosmological solutions which are physically interesting for model building.
description: 14 pages, no figure. to be published in Int. J. Mod. Phys. D
Green valley galaxies in the cosmic web: internal versus environmental quenching
Creators: name: Das, Apashanka
name: Pandey, Biswajit
name: Sarkar, Suman
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We analyze the SDSS data to classify the galaxies based on their colour using a fuzzy set-theoretic method and quantify their environments using the local dimension. We find that the fraction of the green galaxies does not depend on the environment and $10\%-20\%$ of the galaxies at each environment are in the green valley depending on the stellar mass range chosen. Approximately $10\%$ of the green galaxies at each environment host an AGN. Combining data from the Galaxy Zoo, we find that $\sim 95\%$ of the green galaxies are spirals and $\sim 5\%$ are ellipticals at each environment. Only $\sim 8\%$ of green galaxies exhibit signs of interactions and mergers, $\sim 1\%$ have dominant bulge, and $\sim 6\%$ host a bar. We show that the stellar mass distributions for the red and green galaxies are quite similar at each environment. Our analysis suggests that the majority of the green galaxies must curtail their star formation using physical mechanism(s) other than interactions, mergers, and those driven by bulge, bar and AGN activity. We speculate that these are the massive galaxies that have grown only via smooth accretion and suppressed the star formation primarily through mass driven quenching. Using a Kolmogorov-Smirnov test, we do not find any statistically significant difference between the properties of green galaxies in different environments. We conclude that the environmental factors play a minor role and the internal processes play the dominant role in quenching star formation in the green valley galaxies.
description: 31 pages, 13 figures, 2 tables, Included the corrections for dust attenuation, Accepted for publication in JCAP
Report on the Artificial Intelligence Living Lab
Creators: name: Gago, David
name: Barroso, María Joaquina
Publisher: name: Zenodo
Year: 2024

description: The IntelComp H2020 project adopts a living labs methodology and involves external public administrations and policy stakeholders (civil society organisations, academia, and industry organisations) to:

(i) co-design and co-create IntelComp tools and services.

(ii) validate the resulting platform through the co-creation of science, technology, and innovation policies in three different domains: R&D in artificial intelligence, climate change and cancer research, for specific use cases of the IntelComp tools and services.

This document captures the main results and activities of the IntelComp Artificial Intelligence Living Lab.
Quantum Groverian Geodesic Paths with Gravitational and Thermal Analogies
Creators: name: Cafaro, Carlo
name: Felice, Domenico
name: Alsing, Paul M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We present a unifying variational calculus derivation of Groverian geodesics for both quantum state vectors and quantum probability amplitudes. In the first case, we show that horizontal affinely parametrized geodesic paths on the Hilbert space of normalized vectors emerge from the minimization of the length specified by the Fubini-Study metric on the manifold of Hilbert space rays. In the second case, we demonstrate that geodesic paths for probability amplitudes arise by minimizing the length expressed in terms of the Fisher information. In both derivations, we find that geodesic equations are described by simple harmonic oscillators (SHOs). However, while in the first derivation the frequency of oscillations is proportional to the (constant) energy dispersion of the Hamiltonian system, in the second derivation the frequency of oscillations is proportional to the square-root of the (constant) Fisher information. Interestingly, by setting these two frequencies equal to each other, we recover the well-known Anandan-Aharonov relation linking the squared speed of evolution of an Hamiltonian system with its energy dispersion. Finally, upon transitioning away from the quantum setting, we discuss the universality of the emergence of geodesic motion of SHO type in the presence of conserved quantities by analyzing two specific phenomena of gravitational and thermodynamical origin, respectively.
description: 30 pages, 1 table
Phrasebook editing: "animals" through "atoll geography"
Creators: name: Rudolph, Johnny (Soni)
name: Drummond, Emily
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: nkr

description: Elicitation to edit a Nukuoro phrasebook, including sections on animals, fishing and sailing, household and cooking, weaving and thatching, other tools, footwear and accessories, culture, dance/arts/crafts, structures and places, people, events, and atoll geography.
Bispectrum speckle interferometry of the massive protostellar outflow source IRAS 23151+5912
Creators: name: Weigelt, G.
name: Beuther, H.
name: Hofmann, K. -H.
name: Meyer, M. R.
name: Preibisch, Th.
name: Schertl, D.
name: Smith, M. D.
name: Young, E. T.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present bispectrum speckle interferometry of the massive protostellar object IRAS 23151+5912 in the near-infrared K' band. The reconstructed image shows the diffuse nebulosity north-east of two point-like sources in unprecedented detail. The comparison of our near-infrared image with mm continuum and CO molecular line maps shows that the brighter of the two point sources lies near the center of the mm peak, indicating that it is a high-mass protostar. The nebulosity coincides with the blue-shifted molecular outflow component. The most prominent feature in the nebulosity is a bow-shock-like arc. We assume that this feature is associated with a precessing jet which has created an inward-pointed cone in the swept-up material. We present numerical jet simulations that reproduce this and several other features observed in our speckle image of the nebulosity. Our data also reveal a linear structure connecting the central point source to the extended diffuse nebulosity. This feature may represent the innermost part of a jet that drives the strong molecular outflow (PA ~80 degr) from IRAS 23151+5912. With the aid of radiative transfer calculations, we demonstrate that, in general, the observed inner structures of the circumstellar material surrounding high-mass stars are strongly influenced by the orientation and symmetry of the bipolar cavity.
description: accepted by Astronomy & Astrophysics; preprints with high-resolution images can be obtained from http://www.mpifr-bonn.mpg.de/staff/tpreibis/iras23151.html
Leveraging Extracted Model Adversaries for Improved Black Box Attacks
Creators: name: Nizar, Naveen Jafer
name: Kobren, Ari
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: We present a method for adversarial input generation against black box models for reading comprehension based question answering. Our approach is composed of two steps. First, we approximate a victim black box model via model extraction (Krishna et al., 2020). Second, we use our own white box method to generate input perturbations that cause the approximate model to fail. These perturbed inputs are used against the victim. In experiments we find that our method improves on the efficacy of the AddAny---a white box attack---performed on the approximate model by 25% F1, and the AddSent attack---a black box attack---by 11% F1 (Jia and Liang, 2017).
Theory of Initialization-Free Decoherence-Free Subspaces and Subsystems
Creators: name: Shabani, A.
name: Lidar, D. A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We introduce a generalized theory of decoherence-free subspaces and subsystems (DFSs), which do not require accurate initialization. We derive a new set of conditions for the existence of DFSs within this generalized framework. By relaxing the initialization requirement we show that a DFS can tolerate arbitrarily large preparation errors. This has potentially significant implications for experiments involving DFSs, in particular for the experimental implementation, over DFSs, of the large class of quantum algorithms which can function with arbitrary input states.
Predicted spatial and velocity distributions of ejected companion stars of helium accretion-induced thermonuclear supernovae
Creators: name: Neunteufel, P.
name: Kruckow, M.
name: Geier, S.
name: Hamers, A. S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Thermonuclear supernovae (SNe), a subset of which are the highly important SNe Type\,Ia, remain one of the more poorly understood phenomena known to modern astrophysics. In recent years, the single degenerate helium (He) donor channel, where a white dwarf star (WD) accretes He-rich matter from a hydrogen-depleted companion, has emerged as a promising candidate progenitor scenario for these events. An unresolved question in this scenario is the fate of the companion star, which would be evident as a runaway hot subdwarf (He sdO/B) in the aftermath of the SN event. Previous studies have shown that the kinematic properties of an ejected companion provide an opportunity to closer examination of the properties of an SN progenitor system. However, with the number of observed objects not matching predictions by theory, the viability of this mechanism is called into question. In this study, we first synthesize a population of companion stars ejected by the aforementioned mechanism, taking into account predicted ejection velocities, inferred population density in the Galactic (Gal.) mass distribution and subsequent kinematics in the Gal. potential. We then discuss the astrometric properties of this population. We present $10^{6}$ individual ejection trajectories, numerically computed with a newly developed, lightweight simulation framework. A peak in the density distribution for close objects is expected in the direction of the Gal. center. If the entire considered mass range is realized, the radial velocity distribution should show a peak at 500\kms. If only close US\,708 analogues are considered, there should be a peak at ($\sim750-850$)\kms. We show that the puzzling lack of confirmed surviving companion stars of thermonuclear SNe, though possibly an observation-related selection effect, may indicate a selection against high mass donors in the SD He donor channel. (-abridged-)
description: Accepted for publication by A&AL (15/1/2021). Main paper: 5 pages, Appendix: 5 pages, 9 figures
Are Multi-language Design Smells Fault-prone? An Empirical Study
Creators: name: Abidi, Mouna
name: Rahman, Md Saidur
name: Openja, Moses
name: Khomh, Foutse
Publisher: name: arXiv
Year: 2020
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Nowadays, modern applications are developed using components written in different programming languages. These systems introduce several advantages. However, as the number of languages increases, so does the challenges related to the development and maintenance of these systems. In such situations, developers may introduce design smells (i.e., anti-patterns and code smells) which are symptoms of poor design and implementation choices. Design smells are defined as poor design and coding choices that can negatively impact the quality of a software program despite satisfying functional requirements. Studies on mono-language systems suggest that the presence of design smells affects code comprehension, thus making systems harder to maintain. However, these studies target only mono-language systems and do not consider the interaction between different programming languages. In this paper, we present an approach to detect multi-language design smells in the context of JNI systems. We then investigate the prevalence of those design smells. Specifically, we detect 15 design smells in 98 releases of nine open-source JNI projects. Our results show that the design smells are prevalent in the selected projects and persist throughout the releases of the systems. We observe that in the analyzed systems, 33.95% of the files involving communications between Java and C/C++ contains occurrences of multi-language design smells. Some kinds of smells are more prevalent than others, e.g., Unused Parameters, Too Much Scattering, Unused Method Declaration. Our results suggest that files with multi-language design smells can often be more associated with bugs than files without these smells, and that specific smells are more correlated to fault-proneness than others.
An analysis of the legal implications of engineering responses to selected dam owner issues
Creators: name: Joyner, Jay B.
Publisher: name: University of British Columbia
Year: 2009

description: Some key aspects of the legal regime within which dam owners operate are examined, particularly as the law impacts on five specific technical dam-related issues: dam safety, water quality, emergency planning, debris management, and fish habitat creation. The thesis reviews the general legal environment including important statutory requirements and common law obligations arising from riparian rights, nuisance, negligence, and strict liability. Approaches to dam safety decision making, including prescriptive standards and risk analysis, lead to the conclusion that prescriptive standards offer greater legal certainty than risk analysis as a basis for dam safety planning. A n examination of the effect of dams on water quality and riparian rights indicates that changes in sediment and nutrient loads, temperature, and dissolved oxygen might form a basis for legal action by riparian owners. Possible changes to current emergency planning practice suggest that a proposed regulatory change in British Columbia will impose significant new obligations on dam owners. An examination of debris management practices concludes that dam owners have a duty of care with respect to some debris in the reservoir and with respect to collected but escaped debris that passes the dam. Finally, newly created fish habitat is subject to the same legal obligations as existing habitat. Deliberately created habitat may also create liability exposure if it becomes debris during a flood.
Gas cooling of test masses for future gravitational-wave observatories
Creators: name: Reinhardt, Christoph
name: Franke, Alexander
name: Schaffran, Jörn
name: Schnabel, Roman
name: Lindner, Axel
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Recent observations made with Advanced LIGO and Advanced Virgo have initiated the era of gravitational-wave astronomy. The number of events detected by these "2nd Generation" (2G) ground-based observatories is partially limited by noise arising from temperature-induced position fluctuations of the test mass mirror surfaces used for probing spacetime dynamics. The design of next-generation gravitational-wave observatories addresses this limitation by using cryogenically cooled test masses; current approaches for continuously removing heat (resulting from absorbed laser light) rely on heat extraction via black-body radiation or conduction through suspension fibres. As a complementing approach for extracting heat during observational runs, we investigate cooling via helium gas impinging on the test mass in free molecular flow. We establish a relation between cooling power and corresponding displacement noise, based on analytical models, which we compare to numerical simulations. Applying this theoretical framework with regard to the conceptual design of the Einstein Telescope (ET), we find a cooling power of 10 mW at 18 K for a gas pressure that exceeds the ET design strain noise goal by at most a factor of $\sim 3$ in the signal frequency band from 3 to 11 Hz. A cooling power of 100 mW at 18 K corresponds to a gas pressure that exceeds the ET design strain noise goal by at most a factor of $\sim 11$ in the band from 1 to 28 Hz.
Falcke, Heino: Vom Gebot Christi, daß die Kirche uns die Waffen aus der Hand nimmt und den Krieg verbietet
Creators: name: Vo.
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 36 Nr. 2 (1987): Ökumenische Rundschau, Band 36, Heft 2
Feebly coupled vector boson dark matter in effective theory
Creators: name: Barman, Basabendu
name: Bhattacharya, Subhaditya
name: Grzadkowski, Bohdan
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A model of dark matter (DM) that communicates with the Standard Model (SM) exclusively through suppressed dimension five operator is discussed. The SM is augmented with a symmetry $U(1)_X \otimes Z_2$, where $U(1)_X$ is gauged and broken spontaneously by a very heavy decoupled scalar. The massive $U(1)_X$ vector boson ($X^μ$) is stabilized being odd under unbroken $Z_2$ and therefore may contribute as the DM component of the universe. Dark sector field strength tensor $X^{μν}$ couples to the SM hypercharge tensor $B^{μν}$ via the presence of a heavier $Z_2$ odd real scalar $Φ$, i.e. $1/Λ\; X^{μν}B_{μν}Φ$, with $Λ$ being a scale of new physics. The freeze-in production of the vector boson dark matter feebly coupled to the SM is advocated in this analysis. Limitations of the so-called UV freeze-in mechanism that emerge when the maximum reheat temperature $T_\text{RH}$ drops down close to the scale of DM mass are discussed. The parameter space of the model consistent with the observed DM abundance is determined. The model easily and naturally avoids both direct and indirect DM searches. Possibility for detection at the Large Hadron Collider (LHC) is also considered. A Stueckelberg formulation of the model is derived.
description: 40 pages, 14 figures, 3 tables, new references and figures added. Version accepted in JHEP
On the X-ray, optical emission line and black hole mass properties of local Seyfert galaxies
Creators: name: Panessa, F.
name: Bassani, L.
name: Cappi, M.
name: Dadina, M.
name: Barcons, X.
name: Carrera, F. J.
name: Ho, L. C.
name: Iwasawa, K.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate the relation between X-ray nuclear emission, optical emission line luminosities and black hole masses for a sample of 47 Seyfert galaxies. The sample, which has been selected from the Palomar optical spectroscopic survey of nearby galaxies (Ho, Filippenko & Sargent 1997), covers a wide range of nuclear powers, from L_{2-10 keV} ~ 10^{43} erg/s down to very low luminosities (L_{2-10 keV} ~ 10^{38} erg/s). Best available data from Chandra, XMM-Newton and, in a few cases, ASCA observations have been considered. Thanks to the good spatial resolution available from these observations and a proper modeling of the various spectral components, it has been possible to obtain accurate nuclear X-ray luminosities not contaminated by off-nuclear sources and/or diffuse emission. X-ray luminosities have then been corrected taking into account the likely candidate Compton thick sources, which are a high fraction (> 30%) among type 2 Seyferts in our sample. The main result of this study is that we confirm strong linear correlations between 2-10 keV, [OIII]\lambda5007, H_{alpha} luminosities which show the same slope as quasars and luminous Seyfert galaxies, independent of the level of nuclear activity displayed. Moreover, despite the wide range of Eddington ratios (L/L_{Edd}) tested here (six orders of magnitude, from 0.1 down to ~ 10^{-7}), no correlation is found between the X-ray or optical emission line luminosities and the black hole mass. Our results suggest that Seyfert nuclei in our sample are consistent with being a scaled-down version of more luminous AGN.
description: 17 pages, 10 figures, accepted by Astronomy and Astrophysics
title: Problematyka wyznaczania obszarów metropolitalnych w Polsce
Creators: name: Puc, Martyna
name: Pazder, Dominika
Publisher: name: Publishing House of Poznan University of Technology
Year: 2023

description: Zeszyty Naukowe Politechniki Poznańskiej. Architektura, Urbanistyka, Architektura Wnętrz, 15, 161-180
Axial and polar modes for the ring down of a Schwarzschild black hole with an r dependent mass-function
Creators: name: Hess, Peter Otto
name: Lopez-Moreno, Enrique
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The axial and polar modes for the ring down of a Schwarzschild black hole are calculated, by first deriving the Regge-Wheeler and Zerilli equations, respectively, and finally applying the Asymptotic Iteration Method (AIM). We were able to reach up to 500 iterations, obtaining for the first time convergence for a wide range of large damping modes. The General Relativity (GR) and a particular version of an extended model with an r-dependent mass-function are compared. This mass-function allows an analytical solution for the Tortoise coordinate. The example of the mass-function corresponds to the leading correction for extended theories and serves as a starting point to treat other r-dependent parameter mass-functions.
description: 25 pages, 6 figures
Phrasebook editing: "plants" through "animals"
Creators: name: Rudolph, Johnny (Soni)
name: Drummond, Emily
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: nkr

description: Elicitation to edit a Nukuoro phrasebook, including sections on plants and animals. Corresponds to page 101 in Notebook 3.
Levy stable distribution and [0,2] power law dependence of acoustic absorption on frequency
Creators: name: Chen, W
Publisher: name: arXiv
Year: 2005
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: The absorption of acoustic wave propagation in a broad variety of lossy media is characterized by an empirical power law function of frequency, w^y. It has long been noted that exponent y ranges from 0 to 2 for diverse media. Recently, the present author developed a fractional Laplacian wave equation to accurately model the power law dissipation, which can be further reduced to the fractional Laplacian diffusion equation. The latter is known underlying the Levy stable distribution theory. Consequently, the parameters y is found to be the Levy stability index, which is known bounded within 0
description: Welcome any comments to chen_wen@iapcm.ac.cn
title: Test Case Series 1
title: Overview of Intercalibration Results: A Model Comparison
titleType: AlternativeTitle
Creators: name: Thermal Performance Database Team
Publisher: name: University of Kentucky
Year: 2011
Subjects: subject: Aerospace Engineering
subject: FOS: Mechanical engineering

description: Presentation Overview: Comparison of model results  All comparisons (plots) are percent difference from FIAT reference model
Single-particle excitations in the BCS-BEC crossover region II: Broad Feshbach resonance
Creators: name: Ohashi, Y.
name: Griffin, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We apply the formulation developed in a recent paper [Y. Ohashi and A. Griffin, Phys. Rev. A {\bf 72}, 013601, (2005)] for single-particle excitations in the BCS-BEC crossover to the case of a broad Feshbach resonance. At T=0, we solve the Bogoliubov-de Gennes coupled equations taking into account a Bose condensate of bound states (molecules). In the case of a broad resonance, the density profile $n(r)$, as well as the profile of the superfluid order parameter ${\tilde Δ}(r)$, are spatially spread out to the Thomas-Fermi radius, even in the crossover region. This order parameter ${\tilde Δ}(r)$ suppresses the effects of low-energy Andreev bound states on the rf-tunneling current. As a result, the peak energy in the rf-spectrum is found to occur at an energy equal to the superfluid order parameter ${\tilde Δ}(r=0)$ at the center of the trap, in contrast to the case of a narrow resonance, and in agreement with recent measurements. The LDA is found to give a good approximation for the rf-tunneling spectrum.
description: 14 pages, 8 figures
The five axes of the Turtle: symmetry and asymmetry in NGC 6210
Creators: name: Henney, William J.
name: López, J. A.
name: García-Díaz, Ma. T.
name: Richer, M. G.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We carry out a comprehensive kinematic and morphological study of the asymmetrical planetary nebula: NGC 6210, known as the Turtle. The nebula's spectacularly chaotic appearance has led to proposals that it was shaped by mass transfer in a triple star system. We study the three-dimensional structure and kinematics of its shells, lobes, knots, and haloes by combining radial velocity mapping from multiple long-slit spectra with proper motion measurements from multi-epoch imaging. We find that the nebula has five distinct ejection axes. The first is the axis of the bipolar, wind-blown inner shell, while the second is the axis of the lop-sided, elliptical, fainter, but more massive intermediate shell. A further two axes are bipolar flows that form the point symmetric, high-ionization outer lobes, all with inclinations close to the plane of the sky. The final axis, which is inclined close to the line of sight, traces collimated outflows of low-ionization knots. We detect major changes in outflow directions during the planetary nebula phase, starting at or before the initial ionization of the nebula 3500 years ago. Most notably, the majority of redshifted low-ionization knots have kinematic ages greater than 2000 years, whereas the majority of blueshifted knots have ages younger than 2000 years. Such a sudden and permanent 180-degree flip in the ejection axis at a relatively late stage in the nebular evolution is a challenge to models of planetary nebula formation and shaping.
description: 25 pages. MNRAS
Remarks on High Energy Evolution
Creators: name: Kovner, Alex
name: Lublinsky, Michael
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We make several remarks on the B-JIMWLK hierarchy. First, we present a simple and instructive derivation of this equation by considering an arbitrary projectile wave function with small number of valence gluons. We also generalize the equation by including corrections which incorporate effects of high density in the projectile wave function. Second, we systematically derive the dipole model approximation to the hierarchy. We show that in the dipole approximation the hierarchy has a simplifying property that allows its solution by solving the classical equation followed by averaging over the ensemble of initial conditions.
description: 8 pages, references added. Version to appear in JHEP
Spin dependent elastic antiproton interactions
Creators: name: O'Brien, D. S.
name: Buttimore, N. H.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Relativistic formulae for spin averaged and spin dependent one photon exchange differential cross sections are developed for spin half fermion fermion elastic scattering. Spin transfer cross sections are important for the Polarized Antiproton eXperiments (PAX) project at GSI Darmstadt. In particular, cross sections for polarization transfer in antiproton electron and antiproton proton elastic collisions are presented.
description: Prepared for Advanced Studies Institute: Symmetries and Spin (SPIN PRAHA 2005), Prague, Czech Republic, 27 Jul - 3 Aug 2005. Submitted to Czech.J.Phys
Inspection of histological 3D reconstructions in virtual reality
Creators: name: Lobachev, Oleg
name: Berthold, Moritz
name: Pfeffer, Henriette
name: Guthe, Michael
name: Steiniger, Birte S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Graphics (cs.GR)
subject: FOS: Computer and information sciences
subject: I.3.7
subject: 68U05, 68U35, 92C55, 94A08

description: 3D reconstruction is a challenging current topic in medical research. We perform 3D reconstructions from serial sections stained by immunohistological methods. This paper presents an immersive visualisation solution to quality control (QC), inspect, and analyse such reconstructions. QC is essential to establish correct digital processing methodologies. Visual analytics, such as annotation placement, mesh painting, and classification utility, facilitates medical research insights. We propose a visualisation in virtual reality (VR) for these purposes. In this manner, we advance the microanatomical research of human bone marrow and spleen. Both 3D reconstructions and original data are available in VR. Data inspection is streamlined by subtle implementation details and general immersion in VR.
description: Supplemental data under https://zenodo.org/record/4268535, video also available under https://youtu.be/FQSLiW1wQOc
Phrasebook editing: "time of day" through "land"
Creators: name: Rudolph, Johnny (Soni)
name: Drummond, Emily
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: nkr

description: Elicitation to edit a Nukuoro phrasebook. Corresponds to pages 98-100 in Notebook 3.
Predictability, Distinguishability and Entanglement
Creators: name: Qureshi, Tabish
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Recent times have seen a spurt of research activity focused on "completing" certain wave-particle duality relations using entanglement or polarization. These studies use a duality relation involving path-predictability, and not path-distinguishability. Quantum origins of these results are explored here, in the more general framework of multipath quantum interference. Multipath interference with a path-detector is theoretically analyzed to find the connection between predictability and distinguishability. It is shown that entanglement is what quantitatively connects distinguishability with predictability. Thus, a duality relation between distinguishability and coherence, can also be viewed as a triality between predictability, entanglement and coherence. There exist two different kind of duality relations in the literature, which pertain to two different kinds of interference experiments, with or without a path-detector. Results of this study show that the two duality relations are quantitatively connected via entanglement. The roots of the new results in the classical optical domain, including the polarization coherence theorem, can be understood in the light of this work. Additionally, the triality relations obtained can quantify wave-particle duality in the interesting case of a quanton with an internal degree of freedom. The relations can also be employed to experimentally determine the degree of bipartite entanglement.
description: 4 pages, published version
A dynamic analysis of the Okanagan Lake floating bridge
Creators: name: Morris, Eric R.
Publisher: name: University of British Columbia
Year: 2009

description: This thesis describes a time domain dynamic analysis of a proposed floating bridge on Okanagan Lake in Kelowna, British Columbia, Canada. The analysis begins with wave hindcasting using wind data collected at the bridge site and the nearby towns of Penticton and Kelowna. The influence of lake geometry and bathymetry on the design wave conditions is accounted for through the use of a numerical wave hindcasting model. The results of the wave hindcasting model are compared with wave data collected at the bridge site, and directional wave spectra based on the design wave conditions are then constructed for north and south storms. The next stage of the analysis is the calculation of wave loads on the bridge. A computer model based on two-dimensional linear wave diffraction theory is used to calculate the sectional hydrodynamic coefficients. Force time series are then computed by discretizing the directional wave spectra, and combining the regular wave components with the appropriate wave exciting force coefficients and random phases. Superposition of these forces provides the hydrodynamic forces on the bridge as a function of time. A structural analysis of the bridge based on the finite element method is then conducted for north and south storms. The results of the analysis include sway, heave and roll displacements, bending moments in the pontoons and mooring cable tensions. Additional topics that are investigated include the influence of slowly-varying wave drift forces on the response of the bridge, and the variability in response parameters between simulations. The south storm was found to provide the largest bridge response with maximum bending moments about the z and y axes of the pontoon string of 190,000 and 290,000 kNm respectively, and a maximum cable tension of 1,670 kN. Variability between simulations was found to be considerable, with an average coefficient of variability of 0.096 for all response parameters in 10 simulations. The slowly-varying wave drift force was found to be equivalent to a static wave drift force at the significant wave height.
Comment on "Quantum secret sharing based on reusable Greenberger-Horne-Zeilinger states as secure carriers" [Phys. Rev. A 67, 044302 (2003)]
Creators: name: Gao, Fei
name: Guo, Fenzhuo
name: Wen, Qiaoyan
name: Zhu, Fuchen
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In a recent paper [S. Bagherinezhad and V. Karimipour, Phys. Rev. A 67, 044302 (2003)], a quantum secret sharing protocol based on reusable GHZ states was proposed. However, in this Comment, it is shown that this protocol is insecure if Eve employs a special strategy to attack.
description: 2 pages, no figures
Optimizing Entanglement Generation and Distribution Using Genetic Algorithms
Creators: name: da Silva, Francisco Ferreira
name: Torres-Knoop, Ariana
name: Coopmans, Tim
name: Maier, David
name: Wehner, Stephanie
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Long-distance quantum communication via entanglement distribution is of great importance for the quantum internet. However, scaling up to such long distances has proved challenging due to the loss of photons, which grows exponentially with the distance covered. Quantum repeaters could in theory be used to extend the distances over which entanglement can be distributed, but in practice hardware quality is still lacking. Furthermore, it is generally not clear how an improvement in a certain repeater parameter, such as memory quality or attempt rate, impacts the overall network performance, rendering the path towards scalable quantum repeaters unclear. In this work we propose a methodology based on genetic algorithms and simulations of quantum repeater chains for optimization of entanglement generation and distribution. By applying it to simulations of several different repeater chains, including real-world fiber topology, we demonstrate that it can be used to answer questions such as what are the minimum viable quantum repeaters satisfying given network performance benchmarks. This methodology constitutes an invaluable tool for the development of a blueprint for a pan-European quantum internet. We have made our code, in the form of NetSquid simulations and the smart-stopos optimization tool, freely available for use either locally or on high-performance computing centers.
description: Fixed typos
Casimir effect for a spherical shell in de Sitter spacetime with signature change
Creators: name: Setare, M. R.
name: Darabi, F.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The Casimir stress on a spherical shell in de Sitter signature changing background for massless scalar field satisfying Dirichlet boundary conditions on the shell is calculated. The Casimir stress is calculated for inside and outside of the shell with different backgrounds corresponding to different metric signatures and cosmological constants. An important contribution appears due to signature change which leads to a transient rapid expansion of the bubbles in this background.
description: 8 pages, no figures