cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Learning Stance Embeddings from Signed Social Graphs
Creators: name: Pougué-Biyong, John
name: Gupta, Akshay
name: Haghighi, Aria
name: El-Kishky, Ahmed
Publisher: name: arXiv
Year: 2022
Subjects: subject: Social and Information Networks (cs.SI)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: A key challenge in social network analysis is understanding the position, or stance, of people in the graph on a large set of topics. While past work has modeled (dis)agreement in social networks using signed graphs, these approaches have not modeled agreement patterns across a range of correlated topics. For instance, disagreement on one topic may make disagreement(or agreement) more likely for related topics. We propose the Stance Embeddings Model(SEM), which jointly learns embeddings for each user and topic in signed social graphs with distinct edge types for each topic. By jointly learning user and topic embeddings, SEM is able to perform cold-start topic stance detection, predicting the stance of a user on topics for which we have not observed their engagement. We demonstrate the effectiveness of SEM using two large-scale Twitter signed graph datasets we open-source. One dataset, TwitterSG, labels (dis)agreements using engagements between users via tweets to derive topic-informed, signed edges. The other, BirdwatchSG, leverages community reports on misinformation and misleading content. On TwitterSG and BirdwatchSG, SEM shows a 39% and 26% error reduction respectively against strong baselines.
description: WSDM 2023
Footprints of Higher-Dimensional Decaying Black Holes
Creators: name: Kanti, Panagiota
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We review the current results for the emission of Hawking radiation by a higher-dimensional black hole during the Schwarzschild and the spin-down phases. We discuss particularly the role of the angular variation of the emitted radiation on the brane during the latter phase, the radiation spectra for gravitons in the bulk, and the effect of the mass of the emitted particles in determining the bulk-to-brane energy balance.
description: Latex file, 15 Pages, 7 Figures, invited talk at the SEENET-MTP Workshop 2011 "Particle Physics from TeV to Planck Scale", 28 August-1 September 2011, Donji Milanovac, Serbia, to appear in the proceedings
Exciton-Coupled Coherent Magnons in a 2D Semiconductor
Creators: name: Bae, Youn Jue
name: Wang, Jue
name: Scheie, Allen
name: Xu, Junwen
name: Chica, Daniel G.
name: Diederich, Geoffrey M.
name: Cenker, John
name: Ziebel, Michael E.
name: Bai, Yusong
name: Ren, Haowen
name: Dean, Cory R.
name: Delor, Milan
name: Xu, Xiaodong
name: Roy, Xavier
name: Kent, Andrew D.
name: Zhu, Xiaoyang
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Two-dimensional (2D) magnetic semiconductors feature both tightly-bound excitons with large oscillator strength and potentially long-lived coherent magnons due to the presence of bandgap and spatial confinement. While magnons and excitons are energetically mismatched by orders of magnitude, their coupling can lead to efficient optical access to spin information. Here we report strong magnon-exciton coupling in the 2D van der Waals (vdW) antiferromagnetic (AFM) semiconductor CrSBr. Coherent magnons launched by above-gap excitation modulate the interlayer hybridization, which leads to dynamic modulation of excitonic energies. Time-resolved exciton sensing reveals magnons that can coherently travel beyond 7 micrometer, with coherence time above 5 ns. We observe this exciton-coupled coherent magnons in both even and odd number of layers, with and without compensated magnetization, down to the bilayer limit. Given the versatility of vdW heterostructures, these coherent 2D magnons may be basis for optically accessible magnonics and quantum interconnects.
description: 14 pages, 5 figures, 30 pages Supporting Info
Wie wirklichkeitsgetreu ist Merians Stich von der Feste Calenberg?
Creators: name: Steigerwald, Eckard
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2020

description: -
description: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Bd. 33 Nr. 1 (1992): Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
title: Expérimentation en laboratoire (LIEPP Fiches méthodologiques / LIEPP Methods briefs, n°25)
Creators: name: Safra, Lou
Publisher: name: Sciences Po - LIEPP
Year: 2023
Subjects: classificationCode: 5
subject: FOS: Social sciences

description: L’expérimentation en laboratoire permet de mesurer directement les attitudes et comportements des individus et d’évaluer l’effet causal d’une variable sur ces comportements et attitudes. Pour cela, les individus sont mis en situation de réaliser un certain nombre de tâches dont l’on contrôle le plus d’éléments possibles (tels que la durée de la tâche et le type d’informations données aux participant-e-s). Cette démarche peut aider à anticiper ex ante la façon dont des individus vont réagir à une intervention, ou encore être utilisée ex post pour mesurer les changements de comportement à la suite d’une intervention. Elle est notamment utile pour révéler des biais de comportement non conscients.
Non-radial oscillations of neutron stars and the detection of gravitational waves
Creators: name: Chirenti, Cecilia
name: Silveira, Patrick R.
name: Aguiar, Odylio D.
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the non-radial oscillations of relativistic neutron stars, in particular the (fundamental) f-modes, which are believed to be the most relevant for the gravitational wave emission of perturbed isolated stars. The expected frequencies of the f-modes are compared to the sensitivity range of Mario Schenberg, the Brazilian gravitational wave spherical detector.
description: 5 pages, 3 figures. Prepared for the proceedings of the 5th International Workshop on Astronomy and Relativistic Astrophysics, Joao Pessoa, Brazil, October 9-12, 2011
Strong Emergence Arising from Weak Emergence
Creators: name: Schmickl, Thomas
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cellular Automata and Lattice Gases (nlin.CG)
subject: Dynamical Systems (math.DS)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Predictions of emergent phenomena, appearing on the macroscopic layer of a complex system, can fail if they are made by a microscopic model. This study demonstrates and analyses this claim on a well-known complex system, Conway's Game of Life. Straightforward macroscopic mean-field models are easily capable of predicting such emergent properties after they are fitted to simulation data in an after-the-fact way. Thus, these predictions are macro-to-macro only. However, a micro-to-macro model significantly fails to predict correctly, as does the obvious mesoscopic modeling approach. This suggests that some macroscopic system properties in a complex dynamic system should be interpreted as examples of phenomena (properties) arising from "strong emergence", due to the lack of ability to build a consistent micro-to-macro model, that could explain these phenomena in a before-the-fact way. The root cause for this inability to predict this in a micro-to-macro way is identified as the pattern formation process, a phenomenon that is usually classified as being of "weak emergence". Ultimately, this suggests that it may be in principle impossible to discriminate between such distinct categories of "weak" and "strong" emergence, as phenomena of both types can be part of the very same feedback loop that mainly governs the system's dynamics.
description: 15 pages, 10 figures, 5 tables
Quantifying the unknown: issues in simulation validation and their experimental impact
Creators: name: Pia, M. G.
name: Batic, M.
name: Hoff, G.
name: Saracco, P.
name: Begalli, M.
name: Han, M.
name: Kim, C. H
name: Seo, H.
name: Hauf, S.
name: Kuster, M.
name: Quintieri, L.
name: Weidenspointner, G.
name: Zoglauer, A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The assessment of the reliability of Monte Carlo simulations is discussed, with emphasis on uncertainty quantification and the related impact on experimental results. Methods and techniques to account for epistemic uncertainties, i.e. for intrinsic knowledge gaps in physics modeling, are discussed with the support of applications to concrete experimental scenarios. Ongoing projects regarding the investigation of epistemic uncertainties in the Geant4 simulation toolkit are reported.
description: To be published in the Proceedings of the 13th ICATPP Conference on Astroparticle, Particle, Space Physics and Detectors for Physics Applications, Villa Olmo, Como, 3-7 October 2011
PY-Nodes: An ab-initio python code for searching nodes in a material using Nelder-Mead's simplex approach
Creators: name: Pandey, Vivek
name: Pandey, Sudhir K.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: With the discovery of topological semimetals, it has been found that the band touching points near the Fermi level are of great importance. They give rise to many exciting phenomena in these materials. Moreover, these points, commonly known as nodes, are related to several properties of these semimetals. Thus, the proper estimation of their coordinates is extremely needed for better understanding of the properties of these materials. We have designed a Python 3 based code named PY-Nodes for efficiently finding the nodes present in a given material using first-principle approach. The present version of the code is interfaced with the WIEN2k package. For benchmarking the code, it has been tested on some famous materials which possess characteristic nodes. These include - TaAs, a well-known Weyl semimetal, Na$_3$Bi, which is categorized as Dirac semimetal, CaAgAs, classified as a nodal-line semimetal and YAuPb, which is claimed to be non-trivial topological semimetal. In case of TaAs, 24 nodes are obtained from our calculations. On computing their chiralities, it is found that 12 pairs of nodes having equal and opposite chirality are obtained. Furthermore, for Na$_3$Bi, a pair of nodes are obtained on the either side of $Γ$-point in the $\boldsymbol{k_3}$ direction. In case of CaAgAs, several nodes are obtained in the $k_z$=0 plane. These nodes, when plotted in the $k_x$-$k_y$ plane, form a closed loop which is generally referred to as nodal-line. Finally, in the case of YAuPb, large number of nodes are obtained in the vicinity of $Γ$-point. The results obtained for these materials are in good match with the previous works carried out by different research groups. This assures the reliability and the efficiency of the PY-Nodes code for estimating the nodes present in a given material.
title: Laboratory Experimentation (LIEPP Fiches méthodologiques / LIEPP Methods briefs, n°26)
Creators: name: Safra, Lou
Publisher: name: Sciences Po - LIEPP
Year: 2023
Subjects: classificationCode: 5
subject: FOS: Social sciences

description: Laboratory experimentation makes it possible to directly measure the attitudes and behaviour of individuals and to evaluate the causal effect of a variable on these attitudes and behaviour. To do this, individuals are put in a situation where they are asked to perform a certain number of tasks for which as many elements as possible are controlled (such as the duration of the task and the type of information given to participants). This approach can help to anticipate ex ante how individuals will respond to an intervention or can be used ex post to measure changes in behaviour following an intervention. It is particularly useful for uncovering non-conscious behavioural biases.
The gamma-ray spectrum of Geminga and the inverse Compton model of pulsar high energy emission
Creators: name: Lyutikov, Maxim
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We reanalyze the Fermi spectra of the Geminga and Vela pulsars. We find that the spectrum of Geminga above the break is exceptionally well approximated by a simple power law without the exponential cut-off, making Geminga's spectrum similar to that of Crab. Vela's broadband gamma-ray spectrum is equally well fit with both the exponential cut-off and the double power law shapes. In the broadband double power-law fits, for a typical Fermi spectrum of a bright γ-ray pulsar, most of the errors accumulate due to the arbitrary parametrization of the spectral roll-off. In addition, a power law with an exponential cut-off gives an acceptable fit for the underlying double power-law spectrum for a very broad range of parameters, making such fitting procedures insensitive to the underlying Fermi photon spectrum. Our results have important implications for the mechanism of pulsar high energy emission. A number of observed properties of γ-ray pulsars, i.e., the broken power law spectra without exponential cut-offs and stretching in case of Crab beyond the maximal curvature limit, spectral breaks close to or exceeding the maximal breaks due to curvature emission, a Crab patterns of relative intensities of the leading and trailing pulses repeated in the X-ray and γ-ray regions, all point to the inverse Compton origin of the high energy emission from majority of pulsars.
On characterising assemblages in Einstein-Podolsky-Rosen scenarios
Creators: name: Rossi, Vinicius P.
name: Hoban, Matty J.
name: Sainz, Ana Belén
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Characterising non-classical quantum phenomena is crucial not only from a fundamental perspective, but also to better understand its capabilities for information processing and communication tasks. In this work, we focus on exploring the characterisation of Einstein-Podolsky-Rosen inference (a.k.a. steering): a signature of non-classicality manifested when one or more parties in a Bell scenario have their systems and measurements described by quantum theory, rather than being treated as black boxes. We propose a way of characterising common-cause assemblages from the correlations that arise when the trusted party performs tomographically-complete measurements on their share of the experiment, and discuss the advantages and challenges of this approach. Within this framework, we show that so-called almost quantum assemblages satisfy the principle of macroscopic noncontextuality, and demonstrate that a subset of almost quantum correlations recover almost quantum assemblages in this approach.
description: 23 pages, 1 figure
Restaurierung der Vorburg der Marksburg
Creators: name: Hoga, Dirk
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2020

description: -
description: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Bd. 33 Nr. 1 (1992): Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
A meta-analysis of published research on the effects of non-maternal care on child development
Creators: name: Russell, Clare M.
Publisher: name: University of Calgary
Year: 1998
Subjects: subject: BF723 .M35 R76 1998
subject: Mother and child
subject: Maternal deprivation.
subject: Childrearing
subject: Children of working mothers
subject: Day care centers

description: Bibliography: p. 143-151
Dual-Frequency Observations of 140 Compact, Flat-Spectrum Active Galactic Nuclei for Scintillation-Induced Variability
Creators: name: Koay, J. Y
name: Macquart, J. -P.
name: Rickett, B. J.
name: Bignall, H. E.
name: Lovell, J. E. J.
name: Reynolds, C.
name: Jauncey, D. L.
name: Pursimo, T.
name: Kedziora-Chudczer, L.
name: Ojha, R.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The 4.9 GHz Micro-Arcsecond Scintillation-Induced Variability (MASIV) Survey detected a drop in Interstellar Scintillation (ISS) for sources at redshifts z > 2, indicating an apparent increase in angular diameter or a decrease in flux density of the most compact components of these sources, relative to their extended emission. This can result from intrinsic source size effects or scatter broadening in the Intergalactic Medium (IGM), in excess of the expected (1+z)^0.5 angular diameter scaling of brightness temperature limited sources due to cosmological expansion. We report here 4.9 GHz and 8.4 GHz observations and data analysis for a sample of 140 compact, flat-spectrum sources which may allow us to determine the origin of this angular diameter-redshift relation by exploiting their different wavelength dependences. In addition to using ISS as a cosmological probe, the observations provide additional insight into source morphologies and the characteristics of ISS. As in the MASIV Survey, the variability of the sources is found to be significantly correlated with line-of-sight H-alpha intensities, confirming its link with ISS. For 25 sources, time delays of about 0.15 to 3 days are observed between the scintillation patterns at both frequencies, interpreted as being caused by a shift in core positions when probed at different optical depths. Significant correlation is found between ISS amplitudes and source spectral index; in particular, a large drop in ISS amplitudes is observed at spectral indices of < -0.4 confirming that steep spectrum sources scintillate less. We detect a weakened redshift dependence of ISS at 8.4 GHz over that at 4.9 GHz, with the mean variance at 4-day timescales reduced by a factor of 1.8 in the z > 2 sources relative to the z < 2 sources, as opposed to the factor of 3 decrease observed at 4.9 GHz. This suggests scatter broadening in the IGM.
description: 30 pages, 14 figures, accepted for publication in the Astronomical Journal
The Factorial-Basis Method for Finding Definite-Sum Solutions of Linear Recurrences With Polynomial Coefficients
Creators: name: Jiménez-Pastor, Antonio
name: Petkovšek, Marko
Publisher: name: arXiv
Year: 2022
Subjects: subject: Symbolic Computation (cs.SC)
subject: Mathematical Software (cs.MS)
subject: FOS: Computer and information sciences
subject: 33F10, 39A06, 68W30

description: The problem of finding a nonzero solution of a linear recurrence $Ly = 0$ with polynomial coefficients where $y$ has the form of a definite hypergeometric sum, related to the Inverse Creative Telescoping Problem of [14][Sec. 8], has now been open for three decades. Here we present an algorithm (implemented in a SageMath package) which, given such a recurrence and a quasi-triangular, shift-compatible factorial basis $\mathcal{B} = \langle P_k(n)\rangle_{k=0}^\infty$ of the polynomial space $\mathbb{K}[n]$ over a field $\mathbb{K}$ of characteristic zero, computes a recurrence satisfied by the coefficient sequence $c = \langle c_k\rangle_{k=0}^\infty$ of the solution $y_n = \sum_{k=0}^\infty c_kP_k(n)$ (where, thanks to the quasi-triangularity of $\mathcal{B}$, the sum on the right terminates for each $n \in \mathbb{N}$). More generally, if $\mathcal{B}$ is $m$-sieved for some $m \in \mathbb{N}$, our algorithm computes a system of $m$ recurrences satisfied by the $m$-sections of the coefficient sequence $c$. If an explicit nonzero solution of this system can be found, we obtain an explicit nonzero solution of $Ly = 0$.
description: 62 pages
Cold nuclear matter physics at forward rapidities from d+Au collisions in PHENIX
Creators: name: Chiu, Mickey
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We present measurements by the PHENIX experiment at RHIC of di-hadron pair production in \dAu collisions where the particles in the pair are varied across a wide range of pseudorapidity, out to $η= 3.8$. With di-hadrons, varying the $p_T$ and rapidity of the particles in the di-hadron pair allows studying any effects as a function of partonic $x$ in the nucleus. These di-hadron measurements might probe down to parton momentum fractions x $\sim$ $10^{-3}$ in the gold nucleus, where the interesting possibility of observing gluon saturation effects at RHIC is the greatest. Our measurements show that the correlated yield of back-to-back pairs in \dAu collisions is suppressed by up to an order of magnitude relative to \pp collisions, and increases with greater nuclear path thickness and with a selection for lower x in the Au nucleus.
description: To appear in the proceedings of Quark Matter 2011 (QM 2011), Annecy, France, 23-28 May 2011
Psychosocial predictors of depressionin the nursing home relocation process
Creators: name: Crowhurst, Brenton David
Publisher: name: University of Calgary
Year: 1997
Subjects: subject: BF724.85 .D44 C76 1997
subject: Depression in old age.
subject: Aging - Psychological aspects
subject: Aged--Psychology.

description: Bibliography: p. 117-147
Symposium zu Burgensanierungen; Kempten: 24725. Oktober 1992 Veranstalter: Allgäuer Burgenverein e.V.
Creators: name: Zeune, Joachim
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2020

description: -
description: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Bd. 33 Nr. 1 (1992): Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
title: L'évaluation basée sur la théorie (LIEPP Fiches méthodologiques / LIEPP Methods briefs, n°27)
Creators: name: Devaux-Spatarakis, Agathe
Publisher: name: Sciences Po - LIEPP
Year: 2023
Subjects: classificationCode: 5
subject: FOS: Social sciences

description: L’évaluation basée sur la théorie s’est développée en réponse aux limites des approches expérimentales et quasi-expérimentales, qui ne permettent pas de saisir les mécanismes par lesquels une intervention produit ses impacts. Cette approche consiste à ouvrir la « boîte noire » de l’action publique en décomposant les différentes étapes de la chaîne causale liant l’intervention à ses résultats finaux. Les hypothèses ainsi formulées sur les mécanismes en jeu peuvent ensuite être testées empiriquement.
Faithful simple objects, orders and gradings of fusion categories
Creators: name: Natale, Sonia
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: 18D10, 16T05

description: We establish some relations between the orders of simple objects in a fusion category and the structure of its universal grading group. We consider fusion categories which have a faithful simple object and show that its universal grading group must be cyclic. As for the converse, we prove that a braided nilpotent fusion category with cyclic universal grading group always has a faithful simple object. We study the universal grading of fusion categories with generalized Tambara-Yamagami fusion rules. As an application, we classify modular categories in this class and describe the modularizations of braided Tambara-Yamagami fusion categories.
description: 15 pages, amslatex
Bedrohte Denkmäler: Großbrand in Schloß Kellenberg bei Jülich
Creators: name: Hofrichter, Hartmut
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2020

description: -
description: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Bd. 33 Nr. 2 (1992): Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Construction of coronal hole and active region magnetohydrostatic solutions in two dimensions: Force and energy balance
Creators: name: Terradas, J.
name: Soler, R.
name: Oliver, R.
name: Antolin, P.
name: Arregui, I.
name: Luna, M.
name: Piantschitsch, I.
name: Soubrié, E.
name: L., J.
name: Ballester
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Coronal holes and active regions are typical magnetic structures found in the solar atmosphere. We propose several magnetohydrostatic equilibrium solutions that are representative of these structures in two dimensions. Our models include the effect of a finite plasma-$β$ and gravity, but the distinctive feature is that we incorporate a thermal structure with properties similar to those reported by observations. We developed a semi-analytical method to compute the equilibrium configuration. Using this method, we obtain cold and under-dense plasma structures in open magnetic fields representing coronal holes, while in closed magnetic configurations, we achieve the characteristic hot and over-dense plasma arrangements of active regions. Although coronal holes and active regions seem to be antagonistic structures, we find that they can be described using a common thermal structure that depends on the flux function. In addition to the force balance, the energy balance is included in the constructed models using an a posteriori approach. From the two-dimensional computation of thermal conduction and radiative losses in our models, we infer the required heating function to achieve energy equilibrium. We find that the temperature dependence on height is an important parameter that may prevent the system from accomplishing thermal balance at certain spatial locations. The implications of these results are discussed in detail.
description: Accepted for publication in A&A
title: Theory-based Evaluation (LIEPP Fiches méthodologiques / LIEPP Methods briefs, n°28)
Creators: name: Devaux-Spatarakis, Agathe
Publisher: name: Sciences Po - LIEPP
Year: 2023
Subjects: classificationCode: 5
subject: FOS: Social sciences

description: Theory-based evaluation was developed in response to the limitations of experimental and quasiexperimental approaches, which do not capture the mechanisms by which an intervention produces its impacts. This approach consists of opening the "black box" of public policy by breaking down the different stages of the causal chain linking the intervention to its final impacts. The hypotheses thus formulated on the mechanisms at play can then be tested empirically.
Mesoporous supports for the catalysis of Friedel-Crafts alkylation and cyclialkylation recations with sulfur-containing aromatics
Creators: name: Kirk, Andrew
Publisher: name: University of Calgary
Year: 1997
Subjects: subject: QD281 .A5 K57 1997
subject: Additonal Copy: QD281 .A5 K57 1997 in the Gallagher library of Geology and Geography
subject: Friedel - Crafts reaction
subject: Sulphides

description: Bibliography: p. 226-242
description: UARC
The Marian repertory by Tomas Luis de Victoria in Toledo, Biblioteca Capitular Mus. B. 30: a case study in Renaissance Imitatio
Creators: name: Hruza, Lucy
Publisher: name: University of Calgary
Year: 1997
Subjects: subject: ML410 .V47 H78 1997
subject: Composition (Music)
subject: Music--Spain--16th century.
subject: Music--Spain--17th century.

description: Bibliography: p. 226-238
Hartmut Ross, Friedemann Stahl, Praxishandbuch Putz - Stoffe, Verarbeitung, Schadensvermeidung
Creators: name: Fischer, Konrad
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2020

description: Rezension zu: Hartmut Ross, Friedemann Stahl, Praxishandbuch Putz - Stoffe, Verarbeitung, Schadensvermeidung, Köln: R. Müller 1997, 227 Seiten mit zahlreichen Tabellen, Fotos und Abbildungen. ISBN 3-481-01284-5.
description: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Bd. 40 Nr. 1 (1999): Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
L3DAS22 Challenge: Learning 3D Audio Sources in a Real Office Environment
Creators: name: Guizzo, Eric
name: Marinoni, Christian
name: Pennese, Marco
name: Ren, Xinlei
name: Zheng, Xiguang
name: Zhang, Chen
name: Masiero, Bruno
name: Uncini, Aurelio
name: Comminiello, Danilo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Audio and Speech Processing (eess.AS)
subject: Machine Learning (cs.LG)
subject: Sound (cs.SD)
subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: The L3DAS22 Challenge is aimed at encouraging the development of machine learning strategies for 3D speech enhancement and 3D sound localization and detection in office-like environments. This challenge improves and extends the tasks of the L3DAS21 edition. We generated a new dataset, which maintains the same general characteristics of L3DAS21 datasets, but with an extended number of data points and adding constrains that improve the baseline model's efficiency and overcome the major difficulties encountered by the participants of the previous challenge. We updated the baseline model of Task 1, using the architecture that ranked first in the previous challenge edition. We wrote a new supporting API, improving its clarity and ease-of-use. In the end, we present and discuss the results submitted by all participants. L3DAS22 Challenge website: www.l3das.com/icassp2022.
description: Accepted to 2022 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2022). arXiv admin note: substantial text overlap with arXiv:2104.05499
Collision-free landing of multiple UAVs on moving ground vehicles using time-varying control barrier functions
Creators: name: Sankaranarayanan, Viswa Narayanan
name: Saradagi, Akshit
name: Satpute, Sumeet
name: Nikolakopoulos, George
Publisher: name: arXiv
Year: 2025
Subjects: subject: Robotics (cs.RO)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this article, we present a centralized approach for the control of multiple unmanned aerial vehicles (UAVs) for landing on moving unmanned ground vehicles (UGVs) using control barrier functions (CBFs). The proposed control framework employs two kinds of CBFs to impose safety constraints on the UAVs' motion. The first class of CBFs (LCBF) is a three-dimensional exponentially decaying function centered above the landing platform, designed to safely and precisely land UAVs on the UGVs. The second set is a spherical CBF (SCBF), defined between every pair of UAVs, which avoids collisions between them. The LCBF is time-varying and adapts to the motions of the UGVs. In the proposed CBF approach, the control input from the UAV's nominal tracking controller designed to reach the landing platform is filtered to choose a minimally-deviating control input that ensures safety (as defined by the CBFs). As the control inputs of every UAV are shared in establishing multiple CBF constraints, we prove that the control inputs are shared without conflict in rendering the safe sets forward invariant. The performance of the control framework is validated through a simulated scenario involving three UAVs landing on three moving targets.
title: Cost-effectiveness Analysis (LIEPP Fiches méthodologiques / LIEPP Methods briefs, n°30)
Creators: name: Rapp, Thomas
Publisher: name: Sciences Po - LIEPP
Year: 2023
Subjects: classificationCode: 5
subject: FOS: Social sciences

description: Cost-effectiveness analysis is a quantitative method of comparing the "return on investment" of a given policy (the desired results it produces, in relation to its cost), with other possible policies. This method makes it possible to estimate the effectiveness of a policy, i.e. its capacity to maximise a result criterion for each euro of public expenditure. It is useful for guiding public policy choices and the allocation of public expenditure within a given sector.
A path model of the relationship among psychosocial, moral and faith development
Creators: name: Giesbrecht, Norman David
Publisher: name: University of Calgary
Year: 1997
Subjects: subject: BF713 .G54 1997
subject: Additonal Copy: 370 EDC 1997 GIE in the Doucette Education Library
subject: Developmental psychology
subject: Moral development
subject: Faith development.
subject: Faith--Psychology.

description: Bibliography: p. 91-101
Is Neuro-Symbolic AI Meeting its Promise in Natural Language Processing? A Structured Review
Creators: name: Hamilton, Kyle
name: Nayak, Aparna
name: Božić, Bojan
name: Longo, Luca
Publisher: name: arXiv
Year: 2022
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Computation and Language (cs.CL)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Advocates for Neuro-Symbolic Artificial Intelligence (NeSy) assert that combining deep learning with symbolic reasoning will lead to stronger AI than either paradigm on its own. As successful as deep learning has been, it is generally accepted that even our best deep learning systems are not very good at abstract reasoning. And since reasoning is inextricably linked to language, it makes intuitive sense that Natural Language Processing (NLP), would be a particularly well-suited candidate for NeSy. We conduct a structured review of studies implementing NeSy for NLP, with the aim of answering the question of whether NeSy is indeed meeting its promises: reasoning, out-of-distribution generalization, interpretability, learning and reasoning from small data, and transferability to new domains. We examine the impact of knowledge representation, such as rules and semantic networks, language structure and relational structure, and whether implicit or explicit reasoning contributes to higher promise scores. We find that systems where logic is compiled into the neural network lead to the most NeSy goals being satisfied, while other factors such as knowledge representation, or type of neural architecture do not exhibit a clear correlation with goals being met. We find many discrepancies in how reasoning is defined, specifically in relation to human level reasoning, which impact decisions about model architectures and drive conclusions which are not always consistent across studies. Hence we advocate for a more methodical approach to the application of theories of human reasoning as well as the development of appropriate benchmarks, which we hope can lead to a better understanding of progress in the field. We make our data and code available on github for further analysis.
description: Survey
title: L'analyse coût-efficacité (LIEPP Fiches méthodologiques / LIEPP Methods briefs, n°29)
Creators: name: Rapp, Thomas
Publisher: name: Sciences Po - LIEPP
Year: 2023
Subjects: classificationCode: 5
subject: FOS: Social sciences

description: L’analyse coût – efficacité est une méthode quantitative consistant à comparer le « retour sur investissement » d’une politique donnée (les résultats souhaités qu’elle produit, rapportés à son coût), par comparaison avec d’autres politiques possibles. Cette méthode permet d’estimer l’efficacité d’une politique, c’est-à-dire sa capacité à maximiser un critère de résultats pour chaque euro de dépense publique. Elle est utile pour guider les choix de politique publique et d’allocation des dépenses publiques au sein d’un secteur donné.
Enhanced freight sketch planning tool for assessing multimodal investment strategies
Creators: name: Botticello, Jordan Elizabeth, 1982-
Publisher: name: The University of Texas at Austin
Year: 2005
Subjects: subject: Freight and freightage--United States--Cost effectiveness--Data processing
subject: Freight and freightage--Texas--Cost effectiveness--Data processing
subject: Barges--Texas--Cost effectiveness--Data processing

description: In recent years, there have been dramatic changes in the volume and movement of freight within the US and internationally. Traditional distribution systems have been replaced by just-in-time driven processes and freight transportation patterns have become much more complex. Innovations in containerization as well as changes in trade geography have directly influenced international trade movements. NAFTA and the deregulation of rail, trucking and air in the latter part of the twentieth century also had a large impact on freight movement. Given these changes, it has become increasingly necessary for transportation planners to look to modes other than traditional highways as solutions for congestion and other transportation problems. However, public agencies have been challenged to demonstrate and contrast the benefits of these modal investments with traditional highway spending. In 2002 the Texas Department of Transportation (TxDOT) contracted the Center for Transportation Research at The University of Texas at Austin to develop a sketch planning methodology to quantify and evaluate the benefits associated with multimodal freight investments. During the first phase of the research a spreadsheet based tool, entitled Multimodal Analysis Freight Tool (MAFT) was developed to quantify and evaluate the benefits associated with multimodal freight investments. However, the tool needed to be further developed to accurately account for the rail and barge components and data regarding these modes was not readily available during the first phase of the project. Additionally, given the uncertainty of assumptions made in the tool, a sensitivity analysis to determine the critical input values is needed. A critical examination of the output from several case studies will also be studied to determine the overall effect of these factors on the results. An assessment of the oversimplifications in the tool, due to its sketch planning nature, will be undertaken and possible solutions identified
Effect of Soil Toxicity on the Growth and Development of Crimson Clover (Trifolium incarnatum L.) and Blue Alfalfa (Medicago sativa L.)
Creators: name: Stoykova, Mariela
Publisher: name: Zenodo
Year: 2023

description: A vegetation trial was conducted to test, establish and compare the abilities of crimson clover (Trifolium incarnatum L.) and blue alfalfa (Medicago sativa L.) to grow, sequester arsenic and improve microbial soil status in soils with deteriorated water and physical properties and with naturally and technogenically reached toxic levels of arsenic. The experiment is based on cultivation of two types of legume crops under the same controlled climatic conditions, but in different soil environments. Contaminated Regosols and control uncontaminated Rhodic Cambisols, ChromicCalcaric Cambisols and Fluvisols, collected from four geographical points, distributed (4 kg.) in a total of 24 pots/samples and sown with the two investigated crops (2x12) were included in the study. Crop growth and development were monitored during the vegetative and reproductive phenological phases, taking timely biometric measurements. According to the observations made and the results obtained, the crimson clover (Trifolium incarnatum L.) is suitable for remediation and improvement of the agrochemical, biological, physical and physicochemical properties of arsenic-contaminated soils - Regosols, by forming a dense root system with a relative abundance of tubers of symbiotic nitrogen-fixing microorganisms in it, in conditions of Interventional contents of arsenic, significant compaction and deteriorated water permeability of the soils. Contamination with arsenic (in association with a number of heavy metals) suppresses the germination of both crops - crimson clover and alfalfa, vegetative phenophases, nutrition, growth and development of clover, but not the fertility of the obtained crop of the studied crops. The main factors limiting the fertility of the two crops in the experiment were the low content of soil colloids (humus and clay) and the poorer soil microbiome. The observed better adaptability in feeding alfalfa in contaminated soils allows this crop to be applied in longer-term remediation measures.
Nebular and global properties of the gravitationally lensed galaxy "the 8 o'clock arc"
Creators: name: Dessauges-Zavadsky, M.
name: Christensen, L.
name: D'Odorico, S.
name: Schaerer, D.
name: Richard, J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present the analysis of new NIR, intermediate-resolution spectra of the gravitationally lensed galaxy "the 8 o'clock arc" at z_sys = 2.7350 obtained with VLT/X-shooter. These rest-frame optical data, combined with HST and Spitzer images, provide very valuable information, which nicely complement our previous detailed rest-frame UV spectral analysis. From high-resolution HST images, we reconstruct the morphology of the arc in the source plane, and identify that the source is formed of two majors parts, the main galaxy component and a smaller blob separated by 1.2 kpc in projected distance. The blob, with a twice larger magnification factor, is resolved in the spectra. The multi-Gaussian fitting of detected nebular emission lines and the spectral energy distribution modeling of the available multi-wavelength photometry provide the census of gaseous and stellar dust extinctions, gas-phase metallicities, star-formation rates (SFRs), and stellar, gas, and dynamical masses for both the main galaxy and the blob. As a result, the 8 o'clock arc shows a marginal trend for a more attenuated ionized gas than stars, and supports a dependence of the dust properties on the SFR. With a high specific star-formation rate, SSFR = 33+/-19 Gyr^{-1}, this lensed Lyman-break galaxy deviates from the mass-SFR relation, and is characterized by a young age of 40^{+25}_{-20} Myr and a high gas fraction of about 72%. The 8 o'clock arc satisfies the fundamental mass, SFR, and metallicity relation, and favors that it holds up beyond z~2.5. We believe that the blob, with a gas mass M_gas = (2.2+/-0.9)x10^{9} Msun (one order of magnitude lower than the mass of the galaxy), a half-light radius r1/2 = 0.53+/-0.05 kpc, a star-formation rate SFR_Halpha = 33+/-19 Msun yr^{-1}, and in rotation around the main core of the galaxy, is one of these star-forming clumps commonly observed in z>1 star-forming galaxies. (Abridged)
description: 15 pages, 5 figures, published in Astronomy and Astrophysics
Bounds for spectral projectors on the Euclidean cylinder
Creators: name: Germain, Pierre
name: Myerson, Simon L. Rydin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 42B15

description: We prove essentially optimal bounds for norms of spectral projectors on thin spherical shells for the Laplacian on the cylinder (R/Z)*R. In contrast to previous investigations into spectral projectors on tori, having one unbounded dimension available permits a compact self-contained proof.
Proposal for a near-field optomechanical system with enhanced linear and quadratic coupling
Creators: name: Li, Hao-Kun
name: Liu, Yong-Chun
name: Yi, Xu
name: Zou, Chang-Ling
name: Ren, Xue-Xin
name: Xiao, Yun-Feng
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We propose a realistic system with separated optical and mechanical degrees of freedom, in which a high-mechanical-quality silicon nitride membrane is placed upon a high-optical-quality whispering gallery microcavity. The strongly enhanced linear optomechanical coupling, together with simultaneously low optical and mechanical losses in the present system, results in a remarkable single-photon cooperativity exceeding 300. This unprecedented cooperativity in the optomechanical system enables optical nonlinearity at low light intensities and holds great potential in generating, storing, and implementing quantum states. Moreover, the device gives rise to significantly stronger quadratic optomechanical coupling than achieved to date, which is desirable for measuring phonon shot noise with a high signal-to-noise ratio.
description: 14 pages, 5 figures
Intercultural spaces and positioning: narratives of identity, constraint, ethnicity and support
Creators: name: Rattan, Sukhjeet N.S.
Publisher: name: University of Calgary
Year: 1998
Subjects: subject: GN495.6 .R38 1998
subject: Additional Copy: 370 EDC 1998 RAT in the Doucette Education library
subject: Ethnicity
subject: Ethnic groups--Canada.

description: Bibliography: p. 161-171
Generalized Ellis-Bronnikov wormholes in asymptotically safe gravity
Creators: name: Nilton, M.
name: Furtado, J.
name: Alencar, G.
name: Landim, R. R.
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we study a class of wormhole solutions called generalized Ellis-Bronnikov wormholes in the context of asymptotically safe gravity (ASG). These solutions are characterized by two parameters: an even number $n$ and the wormhole throat radius $r_t$. The particular case $n=2$ recovers the usual Ellis-Bronnikov spacetime, which has already been addressed in the literature. We analyzed the nature of matter in the wormhole's throat, and in nearby regions, of these generalized solutions with $n>2$, using three curvature scalars in the ASG approach, namely, the Ricci scalar, squared Ricci and the Kretschmann scalar. We have shown that the ASG leads to corrections in the matter at the wormhole's throat only for the $n=4$ case. For the squared Ricci and the Kretschmann we find that exotic matter is always necessary, as previously found for the usual Ellis-Bronnikov. However, for the Ricci scalar case, we found that ordinary matter is allowed at the throat. Therefore, the generalized Ellis-Bronnikov wormhole provides to the possibility of having ordinary matter at the throat in the context of asymptotically safe gravity.
description: 21 pages, 4 figures. Version accepted for publication in Annals of Physics
$π^0\toγ^*γ$ transition form factor within Light Front Quark Model
Creators: name: Lih, Chong-Chung
name: Geng, Chao-Qiang
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the transition form factor of $π^0\toγ^* γ$ as a function of the momentum transfer $Q^2$ within the light-front quark model (LFQM). We compare our result with the experimental data by BaBar as well as other calculations based on the LFQM in the literature. We show that our predicted form factor fits well with the experimental data, particularly those at the large $Q^2$ region.
description: 11 pages, 4 figures, accepted for publication in PRC
Confinement, the gluon propagator and the interquark potential for heavy mesons
Creators: name: Vento, Vicente
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The interquark static potential for heavy mesons described by a massive One Gluon Exchange interaction obtained from the propagator of the truncated Dyson-Schwinger equations does not reproduced the expected Cornell potential. I show that no formulation based on a finite propagator will lead to confinement of quenched QCD. I propose a mechanism based on a singular nonperturbative coupling constant which has the virtue of giving rise to a finite gluon propagator and (almost) linear confinement. The mechanism can be slightly modified to produce the screened potentials of unquenched QCD.
description: 12 pages and 7 figures
Multi-party consensus processes in environmentally sensitive destinations: paradoxes of ownership and common ground
Creators: name: Jamal, Tazim B.
Publisher: name: University of Calgary
Year: 1997
Subjects: subject: HM136 .J36 1997A
subject: Additonal Copy: HM136 .J36 1997 in the Management Resouce Centre
subject: Conflict management - Canada
subject: Environmental mediation

description: Bibliography: p. 328-350