cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Self-oscillating pump in a topological dissipative atom-cavity system
Creators: name: Dreon, Davide
name: Baumgärtner, Alexander
name: Li, Xiangliang
name: Hertlein, Simon
name: Esslinger, Tilman
name: Donner, Tobias
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Pumps are transport mechanisms in which direct currents result from a cyclic evolution of the potential. As Thouless has shown, the pumping process can have topological origins, when considering the motion of quantum particles in spatially and temporally periodic potentials. However, the periodic evolution that drives these pumps has always been assumed to be imparted from outside, as was the case in the experimental systems studied so far. Here we report on an emergent mechanism for pumping in a quantum gas coupled to an optical resonator, where we observe a particle current without applying a periodic drive. The pumping potential experienced by the atoms is formed by the self-consistent cavity field interfering with the static laser field driving the atoms. Due to dissipation, the cavity field evolves between its two quadratures, each corresponding to a different centrosymmetric crystal configuration. This self-oscillation results in a time-periodic potential analogous to that describing the transport of electrons in topological tight-binding models, like the paradigmatic Rice-Mele pump. In the experiment, we directly follow the evolution by measuring the phase winding of the cavity field with respect to the driving field and observing the atomic motion in-situ. The discovered mechanism combines the dynamics of topological and open systems, and features characteristics of continuous dissipative time crystals.
description: 11 pages, 7 figures
Lindbladian dynamics of the Sachdev-Ye-Kitaev model
Creators: name: Kulkarni, Anish
name: Numasawa, Tokiro
name: Ryu, Shinsei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the Lindbladian dynamics of the Sachdev-Ye-Kitaev (SYK) model, where the SYK model is coupled to Markovian reservoirs with jump operators that are either linear or quadratic in the Majorana fermion operators. Here, the linear jump operators are non-random while the quadratic jump operators are sampled from a Gaussian distribution. In the limit of large $N$, where $N$ is the number of Majorana fermion operators, and also in the limit of large $N$ and $M$, where $M$ is the number of jump operators, the SYK Lindbladians are analytically tractable, and we obtain their stationary Green's functions, from which we can read off the decay rate. For finite $N$, we also study the distribution of the eigenvalues of the SYK Lindbladians.
description: 9 pages, 6 figures
Burgenporträt: Burg Stahleck, Stadt Bacharach/Rhein (Kreis Mainz-Bingen)
Creators: name: Bode, Gabriele Nina
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2020

description: -
description: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Bd. 42 Nr. 1 (2001): Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
title: Dusky Grouse Population Ecology and Thermal Landscape Ecology in the Great Basin Ecosystem
Creators: name: Landry, Stephanie M.
Publisher: name: Utah State University
Year: 2023

description: Dusky Grouse are a mountainous forest grouse found throughout the western, inland mountain ranges of the United States and Canada. While a few studies have looked at Dusky Grouse in the Rocky Mountain Ecosystem of their range, there have been no prior studies of the Dusky Grouse in the Great Basin Ecosystem aside from a brief survey by Zwickel and Bendell in 2004 in the Duck Creek Range of Nevada. With the available habitats differing in both species diversity and availability on the landscape between the two Ecosystems, I wanted to assess characteristics about the Dusky Grouse populations at the southwestern edge of their range in the Great Basin Ecosystem. Thus, I estimated the abundance of Dusky Grouse in the Schell Creek, Duck Creek, and Egan Ranges of White Pine County, Nevada, as well as created a monitoring protocol for continued monitoring of abundance in these areas. I estimated a density of 5 males/km2. I also assessed the seasonal habitat selection of Dusky Grouse in the White Pine County study areas during breeding, nesting, brooding, and over winter. Dusky Grouse used aspen, conifers, and mountain shrubland habitat types the most across the seasons. Finally, I determined the varying temperatures of the study area’s landscape during peak summer and identified possible thermal refuge, or areas that protect species from extreme heat, for an array of wildlife taxa on the landscape. Aspen and conifer stands offered the coolest thermal refuge during peak hours of the summer compared to mountain mahogany, pinyon-juniper, and mountain shrublands. This research is new for the Great Basin Ecosystem, as well as for Dusky Grouse literature as a whole.
Plastic strain accommodation and acoustic emission during melting of embedded particles
Creators: name: Kuba, Michael
name: Van Aken, David C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Melting point phenomena of micron-sized indium particles embedded in an aluminum matrix were studied by means of acoustic emission. The acoustic energy measured during melting increased with indium content. Acoustic emission during the melting transformation suggests a dislocation generation mechanism to accommodate the 2.5% volume strain required for melting of the embedded particles. A geometrically necessary increase in dislocation density of 4.1 x 10^13 m^-2 was calculated for the 17 wt% indium composition.
description: 4 pages, 3 figures, 1 table
Massless Dirac fermions on a space-time lattice with a topologically protected Dirac cone
Creators: name: Vela, A. Donís
name: Pacholski, M. J.
name: Lemut, G.
name: Tworzydło, J.
name: Beenakker, C. W. J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The symmetries that protect massless Dirac fermions from a gap opening may become ineffective if the Dirac equation is discretized in space and time, either because of scattering between multiple Dirac cones in the Brillouin zone (fermion doubling) or because of singularities at zone boundaries. Here we introduce an implementation of Dirac fermions on a space-time lattice that removes both obstructions. The quasi-energy band structure has a tangent dispersion with a single Dirac cone that cannot be gapped without breaking both time-reversal and chiral symmetries. We show that this topological protection is absent in the familiar single-cone discretization with a linear sawtooth dispersion, as a consequence of the fact that there the time-evolution operator is discontinuous at Brillouin zone boundaries.
description: Accepted for publication in Annalen der Physik on 2022-09-09
Origin of Magnetic Circular Dichroism in GaMnAs: Giant Zeeman Splitting versus Spin Dependent Density of States
Creators: name: Berciu, M.
name: Chakarvorty, R.
name: Zhou, Y. Y.
name: Alam, M. T.
name: Traudt, K.
name: Jakiela, R.
name: Barcz, A.
name: Wojtowicz, T.
name: Liu, X.
name: Furdyna, J. K.
name: Dobrowolska, M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a unified interpretation of experimentally observed magnetic circular dichroism (MCD) in the ferromagnetic semiconductor (Ga,Mn)As, based on theoretical arguments, which demonstrates that MCD in this material arises primarily from a difference in the density of spin-up and spin-down states in the valence band brought about by the presence of the Mn impurity band, rather than being primarily due to the Zeeman splitting of electronic states.
description: 4+ pages, 4 figures
title: Méthodes d'appariement (LIEPP Fiches méthodologiques / LIEPP Methods briefs, n°17)
Creators: name: Givord, Pauline
Publisher: name: Sciences Po - LIEPP
Year: 2023
Subjects: classificationCode: 5
subject: FOS: Social sciences

description: Les méthodes mixtes consistent à intégrer des méthodes qualitatives et quantitatives dans une évaluation ou une recherche. La démarche suppose de réfléchir à cette intégration à toutes les étapes du projet, de la formulation des questions de recherche à l’analyse des données, en passant par la revue de littérature. Les méthodes mixtes permettent un apport descriptif, explicatif ou prédictif supérieur à ceux des méthodes qualitatives ou quantitatives prises séparément.
title: Matching methods (LIEPP Fiches méthodologiques / LIEPP Methods briefs, n°18)
Creators: name: Givord, Pauline
Publisher: name: Sciences Po - LIEPP
Year: 2023
Subjects: classificationCode: 5
subject: FOS: Social sciences

description: Matching is a quantitative method for ex-post evaluation in which, in the absence of direct experimentation, a counterfactual situation is reconstructed by comparing the situations of beneficiaries of an intervention with those of non-beneficiaries with very similar characteristics. This method is particularly useful for evaluating the impact of a programme on a whole population, when sufficiently precise data exist to compare beneficiaries and non-beneficiaries.
QED model of the radiation escape from the matter
Creators: name: Zalialiutdinov, T.
name: Solovyev, D.
name: Labzowsky, L.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: A simple model based on QED is presented for the estimation of contribution of the excited level few-photon decays to the radiation escape from the matter in the epoch of the cosmological hydrogen recombination. It is shown that apart from the widely studied two-photon decays, some specific 3-photon decays can contribute on the level of 0.1% accuracy, required by the recent astrophysical observations.
description: 21 pages, 3 figures, 1 Table
Matthias Wieser, Baugeschichtliche Untersuchungen zu den romanischen Profanbauten im Regierungsbezirk Unterfranken
Creators: name: Zeune, Joachim
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2020

description: Rezension zu: Matthias Wieser, Baugeschichtliche Untersuchungen zu den romanischen Profanbauten im Regierungsbezirk Unterfranken, Mit einem Katalog der erhaltenen sowie der überlieferten Baudenkmale. Band I: Textband, 282 S; Band II: Bildband, 329 S., durchgängig Schwarzweißfotos und Strichzeichnungen. Beide geh. Neustadt a.d. Aisch: Verlag Degener 1999. ISBN 3-7686-9258-2.
description: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Bd. 42 Nr. 2 (2001): Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
3D Segmentation with Fully Trainable Gabor Kernels and Pearson's Correlation Coefficient
Creators: name: Wong, Ken C. L.
name: Moradi, Mehdi
Publisher: name: arXiv
Year: 2022
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: The convolutional layer and loss function are two fundamental components in deep learning. Because of the success of conventional deep learning kernels, the less versatile Gabor kernels become less popular despite the fact that they can provide abundant features at different frequencies, orientations, and scales with much fewer parameters. For existing loss functions for multi-class image segmentation, there is usually a tradeoff among accuracy, robustness to hyperparameters, and manual weight selections for combining different losses. Therefore, to gain the benefits of using Gabor kernels while keeping the advantage of automatic feature generation in deep learning, we propose a fully trainable Gabor-based convolutional layer where all Gabor parameters are trainable through backpropagation. Furthermore, we propose a loss function based on the Pearson's correlation coefficient, which is accurate, robust to learning rates, and does not require manual weight selections. Experiments on 43 3D brain magnetic resonance images with 19 anatomical structures show that, using the proposed loss function with a proper combination of conventional and Gabor-based kernels, we can train a network with only 1.6 million parameters to achieve an average Dice coefficient of 83%. This size is 44 times smaller than the original V-Net which has 71 million parameters. This paper demonstrates the potentials of using learnable parametric kernels in deep learning for 3D segmentation.
description: This paper was accepted by the International Workshop on Machine Learning in Medical Imaging (MLMI 2022)
Adaptive Extended Kalman Filtering for Battery State of Charge Estimation on STM32
Creators: name: Barros, António
name: Peretti, Edoardo
name: Fabroni, Davide
name: Carrera, Diego
name: Fragneto, Pasqualina
name: Boracchi, Giacomo
Publisher: name: arXiv
Year: 2025
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Accurate and computationally light algorithms for estimating the State of Charge (SoC) of a battery's cells are crucial for effective battery management on embedded systems. In this letter, we propose an Adaptive Extended Kalman Filter (AEKF) for SoC estimation using a covariance adaptation technique based on maximum likelihood estimation - a novelty in this domain. Furthermore, we tune a key design parameter - the window size - to obtain an optimal memory-performance trade-off, and experimentally demonstrate our solution achieves superior estimation accuracy with respect to existing alternative methods. Finally, we present a fully custom implementation of the AEKF for a general-purpose low-cost STM32 microcontroller, showing it can be deployed with minimal computational requirements adequate for real-world usage.
description: Published in IEEE Embedded Systems Letters (2024)
Stabilizing sliding mode control design and application for a dc motor: Speed control
Creators: name: Rhif, Ahmed
Publisher: name: arXiv
Year: 2012
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The regulation by sliding mode control (SMC) is recognized for its qualities of robustness and dynamic response. This article will briefly talk about the regulation principles by sliding mode as well as the application of this approach to the adjustment of a speed control DC motor bench using the TY36A/EV unit. This unit, from Electronica Veneta products, uses a PID controller to control the speed and position of the DC motor. Our purpose is to improve the set time answer and the robustness of the system when disturbances take place. The experimental results show very good performances of the proposed approach relatively to the PID.
description: 10 pages; 13 figures, international journal
Fluid dynamics and noise in bacterial cell-cell and cell-surface scattering
Creators: name: Drescher, Knut
name: Dunkel, Jörn
name: Cisneros, Luis H.
name: Ganguly, Sujoy
name: Goldstein, Raymond E.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Bacterial processes ranging from gene expression to motility and biofilm formation are constantly challenged by internal and external noise. While the importance of stochastic fluctuations has been appreciated for chemotaxis, it is currently believed that deterministic long-range fluid dynamical effects govern cell-cell and cell-surface scattering - the elementary events that lead to swarming and collective swimming in active suspensions and to the formation of biofilms. Here, we report the first direct measurements of the bacterial flow field generated by individual swimming Escherichia coli both far from and near to a solid surface. These experiments allowed us to examine the relative importance of fluid dynamics and rotational diffusion for bacteria. For cell-cell interactions it is shown that thermal and intrinsic stochasticity drown the effects of long-range fluid dynamics, implying that physical interactions between bacteria are determined by steric collisions and near-field lubrication forces. This dominance of short-range forces closely links collective motion in bacterial suspensions to self-organization in driven granular systems, assemblages of biofilaments, and animal flocks. For the scattering of bacteria with surfaces, long-range fluid dynamical interactions are also shown to be negligible before collisions; however, once the bacterium swims along the surface within a few microns after an aligning collision, hydrodynamic effects can contribute to the experimentally observed, long residence times. As these results are based on purely mechanical properties, they apply to a wide range of microorganisms.
description: 9 pages, 2 figures, http://www.pnas.org/content/108/27/10940
Numerical stability of the Z4c formulation of general relativity
Creators: name: Cao, Zhoujian
name: Hilditch, David
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study numerical stability of different approaches to the discretization of a conformal decomposition of the Z4 formulation of general relativity. We demonstrate that in the linear, constant coefficient regime a novel discretization for tensors is formally numerically stable with a method of lines time-integrator. We then perform a full set of apples with apples tests on the non-linear system, and thus present numerical evidence that both the new and standard discretizations are, in some sense, numerically stable in the non-linear regime. The results of the Z4c numerical tests are compared with those of BSSNOK evolutions. We typically do not employ the Z4c constraint damping scheme and find that in the robust stability and gauge wave tests the Z4c evolutions result in lower constraint violation at the same resolution as the BSSNOK evolutions. In the gauge wave tests we find that the Z4c evolutions maintain the desired convergence factor over many more light-crossing times than the BSSNOK tests. The difference in the remaining tests is marginal.
description: submitted to PRD
Schwinger effect and a uniformly accelerated observer
Creators: name: Kaushal, Shagun
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: This article investigates the Schwinger effect for fermions with background electric and magnetic fields of constant strengths from the point of view of a uniformly accelerated or the Rindler observer. The Dirac equation is solved in a closed form, and the field quantisation in the $(3+1)$-dimensional Rindler spacetime is performed. The orthonormal local in and out modes for the causally disconnected right and left wedges and the Bogoliubov relations between them are obtained. Next, the global modes are constructed to cover the whole spacetime, and the Bogoliubov relationship between the local and global operators is found. Using them the squeezed state expansion of the global vacuum in terms of local states is acquired and accordingly, the spectra of created particles is found. Clearly, there are two sources of particle creation in this scenario -- the Schwinger as well as the Unruh effects. Our chief aim is to investigate the role of the strength of the background electromagnetic fields on the spectra of created particles. We also discuss very briefly some possible implication of this result in the context of quantum entanglement.
description: 19pp, 3figs
"Ideas" and educational change: the thought and action of Alberta educational leaders, 1905 - 1955
Creators: name: Lemisko, Lynn Speer
Publisher: name: University of Calgary
Year: 1998
Subjects: subject: LA418 .A4 L46 1998
subject: Additional Copy: 370 EDC 1998 SPEE in the Doucette Education Library
subject: Education - Alberta - History

description: Bibliography: p. 389-401
description: UARC
On the Practical use of Variable Elimination in Constraint Optimization Problems: 'Still-life' as a Case Study
Creators: name: Larrosa, J.
name: Morancho, E.
name: Niso, D.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Variable elimination is a general technique for constraint processing. It is often discarded because of its high space complexity. However, it can be extremely useful when combined with other techniques. In this paper we study the applicability of variable elimination to the challenging problem of finding still-lifes. We illustrate several alternatives: variable elimination as a stand-alone algorithm, interleaved with search, and as a source of good quality lower bounds. We show that these techniques are the best known option both theoretically and empirically. In our experiments we have been able to solve the n=20 instance, which is far beyond reach with alternative approaches.
Baryon Content of Massive Galaxy Clusters at z=0-0.6
Creators: name: Lin, Yen-Ting
name: Stanford, S. Adam
name: Eisenhardt, Peter R. M.
name: Vikhlinin, Alexey
name: Maughan, Ben J.
name: Kravtsov, Andrey
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study the relationship between two major baryonic components in galaxy clusters, namely the stars in galaxies, and the ionized gas in the intracluster medium (ICM), using 94 clusters that span the redshift range 0-0.6. Accurately measured total and ICM masses from Chandra observations, and stellar masses derived from the Wide-field Infrared Survey Explorer and the Two-Micron All-Sky Survey allow us to trace the evolution of cluster baryon content in a self-consistent fashion. We find that, within r_{500}, the evolution of the ICM mass--total mass relation is consistent with the expectation of self-similar model, while there is no evidence for redshift evolution in the stellar mass--total mass relation. This suggests that the stellar mass and ICM mass in the inner parts of clusters evolve differently.
description: 5 pages, 4 figures; accepted for publication in ApJ Letters
Rudolf Kleeberg, Wolfgang Eberl, Kulturgüter in Privatbesitz. Handbuch für das Denkmal- und Steuerrecht
Creators: name: Hofrichter, Hartmut
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2020

description: Rezension zu: Rudolf Kleeberg, Wolfgang Eberl, Kulturgüter in Privatbesitz. Handbuch für das Denkmal- und Steuerrecht (Bücher des Betriebs-Beraters), Heidelberg: Verlag Recht und Wirtschaft GmbH 1990, 389 S. ISBN 3-8005-6286-3.
description: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Bd. 32 Nr. 1 (1991): Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
title: Mixed methods systematic reviews (LIEPP Fiches méthodologiques / LIEPP Methods briefs, n°20)
Creators: name: Pluye, Pierre
Publisher: name: Sciences Po - LIEPP
Year: 2023
Subjects: classificationCode: 5
subject: FOS: Social sciences

description: A concept originating from nursing sciences and here applied in an innovative way to evaluation, cultural safety refers to an approach aimed at ensuring that the evaluation takes place in a "safe" manner for the stakeholders, and in particular for the minority communities targeted by the intervention under study, i.e. that the evaluation process avoids reproducing mechanisms of domination (aggression, denial of identity, etc.) linked to structural inequalities. To this end, various participatory techniques are used at all stages of the evaluation. Cultural safety is compatible with all types of methods. It contributes to making the evaluation more relevant and useful for stakeholders and will likely increase their self-determination.
Smoothness and continuity of cost functionals for ECG mismatch computation
Creators: name: Grandits, Thomas
name: Pezzuto, Simone
name: Plank, Gernot
Publisher: name: arXiv
Year: 2022
Subjects: subject: Medical Physics (physics.med-ph)
subject: Machine Learning (cs.LG)
subject: Signal Processing (eess.SP)
subject: Optimization and Control (math.OC)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Mathematics

description: The field of cardiac electrophysiology tries to abstract, describe and finally model the electrical characteristics of a heartbeat. With recent advances in cardiac electrophysiology, models have become more powerful and descriptive as ever. However, to advance to the field of inverse electrophysiological modeling, i.e. creating models from electrical measurements such as the ECG, the less investigated field of smoothness of the simulated ECGs w.r.t. model parameters need to be further explored. The present paper discusses smoothness in terms of the whole pipeline which describes how from physiological parameters, we arrive at the simulated ECG. Employing such a pipeline, we create a test-bench of a simplified idealized left ventricle model and demonstrate the most important factors for efficient inverse modeling through smooth cost functionals. Such knowledge will be important for designing and creating inverse models in future optimization and machine learning methods.
Probing elastic and inelastic breakup contributions to intermediate-energy two-proton removal reactions
Creators: name: Wimmer, K.
name: Bazin, D.
name: Gade, A.
name: Tostevin, J. A.
name: Baugher, T.
name: Chajecki, Z.
name: Coupland, D.
name: Famiano, M. A.
name: Ghosh, T. K.
name: Grinyer, G. F.
name: Hodges, R.
name: Howard, M. E.
name: Kilburn, M.
name: Lynch, W. G.
name: Manning, B.
name: Meierbachtol, K.
name: Quarterman, P.
name: Ratkiewicz, A.
name: Sanetullaev, A.
name: Stroberg, S. R.
name: Tsang, M. B.
name: Weisshaar, D.
name: Winkelbauer, J.
name: Youngs, R. Winkler M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The two-proton removal reaction from 28Mg projectiles has been studied at 93 MeV/u at the NSCL. First coincidence measurements of the heavy 26Ne projectile residues, the removed protons and other light charged particles enabled the relative cross sections from each of the three possible elastic and inelastic proton removal mechanisms to be determined. These more final-state-exclusive measurements are key for further interrogation of these reaction mechanisms and use of the reaction channel for quantitative spectroscopy of very neutron-rich nuclei. The relative and absolute yields of the three contributing mechanisms are compared to reaction model expectations - based on the use of eikonal dynamics and sd-shell-model structure amplitudes.
description: Accepted for publication in Physical Review C (Rapid Communication)
title: Les méthodes mixtes (LIEPP Fiches méthodologiques / LIEPP Methods briefs, n°19)
Creators: name: Pluye, Pierre
Publisher: name: Sciences Po - LIEPP
Year: 2023
Subjects: classificationCode: 5
subject: FOS: Social sciences

description: Les méthodes mixtes consistent à intégrer des méthodes qualitatives et quantitatives dans une évaluation ou une recherche. La démarche suppose de réfléchir à cette intégration à toutes les étapes du projet, de la formulation des questions de recherche à l’analyse des données, en passant par la revue de littérature. Les méthodes mixtes permettent un apport descriptif, explicatif ou prédictif supérieur à ceux des méthodes qualitatives ou quantitatives prises séparément.
Wave-intensity analysis of pulmonary arterial blood flow in anesthetized dogs
Creators: name: Hollander, Ellen Herdis
Publisher: name: University of Calgary
Year: 1998
Subjects: subject: QP113 .H65 1998
subject: Cardiac output--Measurement.
subject: Heart beat
subject: Cardiovascular research.
subject: Pulse--Measurement.

description: Bibliography: p. 139-147
Hans-Joachim Mrusek, Romanik. Deutsche Baukunst
Creators: name: Hofrichter, Hartmut
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2020

description: Rezension zu: Hans-Joachim Mrusek, Romanik. Deutsche Baukunst. Leipzig: E. A. Seemann Verlag 19914. 300 S., 229 Fotos, davon 24farbig, 34 Zeichnungen, Leinen, 24,7x27,7cm. ISBN 3-363-00491-5.
description: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Bd. 33 Nr. 1 (1992): Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
title: No. IV: the eastern pediment of the temple of Zeus in Olympia and the western pediment of the Parthenon
title: No. IV: the eastern pediment of the temple of Zeus in Olympia and the western pediment of the Parthenon
Creators: name: Waldstein, Charles
Publisher: name: University Library Heidelberg
Year: 1885

description: Essays on the art of Pheidias
description: Essays on the art of Pheidias
title: Microsimulation (LIEPP Fiches méthodologiques / LIEPP Methods briefs, n°22)
Creators: name: Baptista, Andre Mathias
Publisher: name: Sciences Po - LIEPP
Year: 2023
Subjects: classificationCode: 5
subject: FOS: Social sciences

description: Microsimulation is a quantitative method for estimating the expected impact of an intervention (e.g. the modification of a tax rate) and describing its effects (winners, losers, budgetary envelope, effect on inequality indicators). It is based on taking into account the characteristics of the target population (e.g. age, income, etc.) and modelling public policy effects concerning this population. Because of the diversity of situations that it makes it possible to integrate, this technique provides more precise and complete results than estimates based on average or aggregate reasoning of the representative individual type. Its development has been encouraged by the improvement in computing power and the increase in statistical information (surveys or administrative data). It is an essential tool for ex ante evaluation of the impact of public policies and can also be used for ex post evaluation.
Scalable Grid Resource Discovery through Distributed Search
Creators: name: Butt, Fouad
name: Bokhari, Syed Saadat
name: Abhari, Abdolreza
name: Ferworn, Alexander
Publisher: name: arXiv
Year: 2011
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: This paper proposes a simple and scalable web-based model for grid resource discovery for the Internet. The resource discovery model contains the metadata and resource finder web services. The information of resource finder web services is kept in the repositories that are distributed in the application layer of Internet. The resource finder web services will be discovered by sending queries to the repositories in a similar way as the DNS protocol. The underlying technology for implementation of the two architectures of this model is introduced. These architectures are: Direct and Centralized Web-Based Grid Resource Discovery. The resource discovery time is computed after simulating each of these models in GridSim. By performing scalability tests, we found that when increasing the load on the grid with more users and resources, the cost of our model in comparison to the grid resource discovery time is marginal.
Finite-temperature phase transition in a class of 4-state Potts antiferromagnets
Creators: name: Deng, Youjin
name: Huang, Yuan
name: Jacobsen, Jesper Lykke
name: Salas, Jesús
name: Sokal, Alan D.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Lattice (hep-lat)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We argue that the 4-state Potts antiferromagnet has a finite-temperature phase transition on any Eulerian plane triangulation in which one sublattice consists of vertices of degree 4. We furthermore predict the universality class of this transition. We then present transfer-matrix and Monte Carlo data confirming these predictions for the cases of the union-jack and bisected hexagonal lattices.
description: LaTeX2e/Revtex4, 5 pages
The assimilation and adjustment of Chinese scholars in Canada after the 1989 Tiananmen Square incident
Creators: name: Zhu, Ning S.
Publisher: name: University of Calgary
Year: 1997
Subjects: subject: FC106 .C5 Z48 1997
subject: Chinese--Canada--History.
subject: Chinese Canadians--History.
subject: Acculturation--Canada--Case studies.
subject: Dissenters--China
subject: China--History--Tiananmen Square Incident, 1989.

description: Bibligraphy: p. 171-178
title: Microsimulation (LIEPP Fiches méthodologiques / LIEPP Methods briefs, n°21)
Creators: name: Baptista, Andre Mathias
Publisher: name: Sciences Po - LIEPP
Year: 2023
Subjects: classificationCode: 5
subject: FOS: Social sciences

description: La microsimulation est une méthode quantitative permettant d’estimer l’impact attendu d’une intervention (par exemple, la modification d’un taux d’imposition) et d’en décrire les effets (gagnants, perdants, enveloppe budgétaire, effet sur les indicateurs d’inégalités). Elle repose sur une prise en compte des caractéristiques de la population ciblée (par exemple en termes d’âge, de revenu, etc.) et modélise les effets des politiques publiques concernant cette population. En raison de la diversité des situations qu’elle permet d’intégrer, cette technique fournit des résultats plus précis et plus complets que les estimations à partir d’un raisonnement moyen ou agrégé de type individu représentatif. Son développement a été favorisé par l’amélioration de la puissance des calculs informatiques, la multiplication des informations statistiques (enquêtes ou données administratives). C’est un outil essentiel de l’évaluation ex ante de l’impact des politiques publiques qui peut également être utilisé pour l’évaluation ex post.
GABergic inhibition regulates the synaptic activation of cholinergic-dependent plateau potentials
Creators: name: Doll, Daniel
Publisher: name: University of Calgary
Year: 1998
Subjects: subject: RM323 .D65 1998
subject: Parasympatholytic agents
subject: Parasympathomimetic agents

description: Bibliography: p. 53-67
description: UARC
description: Copyright waiver included: y
Spacetimes categories and disjointness for algebraic quantum field theory
Creators: name: Grant-Stuart, Alastair
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Category Theory (math.CT)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: An algebraic quantum field theory (AQFT) may be expressed as a functor from a category of spacetimes to a category of algebras of observables. However, a generic category $\mathsf{C}$ whose objects admit interpretation as spacetimes is not necessarily viable as the domain of an AQFT functor; often, additional constraints on the morphisms of $\mathsf{C}$ must be imposed. We introduce disjointness relations, a generalisation of the orthogonality relations of Benini, Schenkel and Woike (arXiv:1709.08657). In any category $\mathsf{C}$ equipped with a disjointness relation, we identify a subcategory $\mathsf{D}_\mathsf{C}$ which is suitable as the domain of an AQFT. We verify that when $\mathsf{C}$ is the category of all globally hyperbolic spacetimes of dimension $d+1$ and all local isometries, equipped with the disjointness relation of spacelike separation, the specified subcategory $\mathsf{D}_\mathsf{C}$ is the commonly-used domain $\mathsf{Loc}_{d+1}$ of relativistic AQFTs. By identifying appropriate chiral disjointness relations, we construct a category $χ\mathsf{Loc}$ suitable as domain for chiral conformal field theories (CFTs) in two dimensions. We compare this to an established AQFT formulation of chiral CFTs, and show that any chiral CFT expressed in the established formulation induces one defined on $χ\mathsf{Loc}$.
description: v1: 53 pages. v2: 66 pages; added example to Section 4; minor edits for clarity and typo correction
Stochastic oscillations of general relativistic disks
Creators: name: Harko, Tiberiu
name: Mocanu, Gabriela
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We analyze the general relativistic oscillations of thin accretion disks around compact astrophysical objects interacting with the surrounding medium through non-gravitational forces. The interaction with the external medium (a thermal bath) is modeled via a friction force, and a random force, respectively. The general equations describing the stochastically perturbed disks are derived by considering the perturbations of trajectories of the test particles in equatorial orbits, assumed to move along the geodesic lines. By taking into account the presence of a viscous dissipation and of a stochastic force we show that the dynamics of the stochastically perturbed disks can be formulated in terms of a general relativistic Langevin equation. The stochastic energy transport equation is also obtained. The vertical oscillations of the disks in the Schwarzschild and Kerr geometries are considered in detail, and they are analyzed by numerically integrating the corresponding Langevin equations. The vertical displacements, velocities and luminosities of the stochastically perturbed disks are explicitly obtained for both the Schwarzschild and the Kerr cases.
description: 10 pages, 8 figures, accepted for publication in MNRAS
Reply to Comment on: "Are stress-free membranes really 'tensionless'?"
Creators: name: Schmid, Friederike
Publisher: name: arXiv
Year: 2012
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: This is a reply to a comment on the paper arXiv:1204.2075 "Are stress-free membranes really tensionless ?" (EPL 95,28008 (2011)).
Absorption-stripping process for the purification of high pressure hydrogen: solubility,mass transfer and simulation studies
Creators: name: Peramanu, Subodhsen
Publisher: name: University of Calgary
Year: 1998
Subjects: subject: TP690.4 .P47 1998
subject: Cracking process
subject: Petroleum engineering
subject: Petroleum--Refinging.

description: Bibliography: p. 164-175
Exhaustive existence and non-existence results for Hardy-Hénon equations in $\mathbf R^n$
Creators: name: Giga, Yoshikazu
name: Ngô, Quôc Anh
Publisher: name: arXiv
Year: 2022
Subjects: subject: Analysis of PDEs (math.AP)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics

description: This paper concerns solutions to the Hardy-Hénon equation \[ -Δu = |x|^σu^p \] in $\mathbf R ^n$ with $n \geq 1$ and arbitrary $p, σ\in \mathbf R$. This equation was proposed by Hénon in 1973 as a model to study rotating stellar systems in astrophysics. Although there have been many works devoting to the study of the above equation, at least one of the following three assumptions $p>1$, $σ\geq -2$, and $n \geq 3$ is often assumed. The aim of this paper is to investigate the equation in other cases of these parameters, leading to a complete picture of the existence/non-existence results for non-trivial, non-negative solutions in the full generality of the parameters. In addition to the existence/non-existence results, the uniqueness of solutions is also discussed.
description: 30 pages, 0 figure
Hybrid BDI-POMDP Framework for Multiagent Teaming
Creators: name: Nair, R.
name: Tambe, M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Multiagent Systems (cs.MA)
subject: FOS: Computer and information sciences

description: Many current large-scale multiagent team implementations can be characterized as following the belief-desire-intention (BDI) paradigm, with explicit representation of team plans. Despite their promise, current BDI team approaches lack tools for quantitative performance analysis under uncertainty. Distributed partially observable Markov decision problems (POMDPs) are well suited for such analysis, but the complexity of finding optimal policies in such models is highly intractable. The key contribution of this article is a hybrid BDI-POMDP approach, where BDI team plans are exploited to improve POMDP tractability and POMDP analysis improves BDI team plan performance. Concretely, we focus on role allocation, a fundamental problem in BDI teams: which agents to allocate to the different roles in the team. The article provides three key contributions. First, we describe a role allocation technique that takes into account future uncertainties in the domain; prior work in multiagent role allocation has failed to address such uncertainties. To that end, we introduce RMTDP (Role-based Markov Team Decision Problem), a new distributed POMDP model for analysis of role allocations. Our technique gains in tractability by significantly curtailing RMTDP policy search; in particular, BDI team plans provide incomplete RMTDP policies, and the RMTDP policy search fills the gaps in such incomplete policies by searching for the best role allocation. Our second key contribution is a novel decomposition technique to further improve RMTDP policy search efficiency. Even though limited to searching role allocations, there are still combinatorially many role allocations, and evaluating each in RMTDP to identify the best is extremely difficult. Our decomposition technique exploits the structure in the BDI team plans to significantly prune the search space of role allocations. Our third key contribution is a significantly faster policy evaluation algorithm suited for our BDI-POMDP hybrid approach. Finally, we also present experimental results from two domains: mission rehearsal simulation and RoboCupRescue disaster rescue simulation.
Simultaneous management of demand and supply in services
Creators: name: Klassen, Kenneth John
Publisher: name: University of Calgary
Year: 1997
Subjects: subject: HD9980.5 .K56 1997A
subject: Additonal Copy: HD9980.5 .K56 1997 in the Management Resource Centre
subject: Service industries - Management
subject: Service industries - Labor productivity
subject: Supply and demand

description: Bibliography: p. 176-182
title: Analyse historique comparée (LIEPP Fiches méthodologiques / LIEPP Methods briefs, n°24)
Creators: name: Ferragina, Emanuele
Publisher: name: Sciences Po - LIEPP
Year: 2023
Subjects: classificationCode: 5
subject: FOS: Social sciences

description: L'analyse historique comparée combine deux outils méthodologiques majeurs des sciences sociales, la comparaison (l'étude des similitudes et des différences entre les cas) et l'histoire (l'analyse des processus de changement dans leur dimension temporelle), pour aider à expliquer les phénomènes sociaux à grande échelle sur une variété de sujets. Elle est particulièrement utile pour rendre compte de la définition des politiques publiques (cadrage des politiques et changement de politique).
Fluid-Fluid and Fluid-Solid transitions in the Kern-Frenkel model from Barker-Henderson thermodynamic perturbation theory
Creators: name: Gögelein, Christoph
name: Romano, Flavio
name: Sciortino, Francesco
name: Giacometti, Achille
Publisher: name: arXiv
Year: 2012
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We study the Kern-Frenkel model for patchy colloids using Barker-Henderson second-order thermodynamic perturbation theory. The model describes a fluid where hard sphere particles are decorated with one patch, so that they interact via a square-well (SW) potential if they are sufficiently close one another, and if patches on each particle are properly aligned. Both the gas-liquid and fluid-solid phase coexistences are computed and contrasted against corresponding Monte-Carlo simulations results. We find that the perturbation theory describes rather accurately numerical simulations all the way from a fully covered square-well potential down to the Janus limit (half coverage). In the region where numerical data are not available (from Janus to hard-spheres), the method provides estimates of the location of the critical lines that could serve as a guideline for further efficient numerical work at these low coverages. A comparison with other techniques, such as integral equation theory, highlights the important aspect of this methodology in the present context.
description: Accepted for publication in The Journal of Chemical Physics (2012)
title: Comparative Historical Analysis (LIEPP Fiches méthodologiques / LIEPP Methods briefs, n°23)
Creators: name: Ferragina, Emanuele
Publisher: name: Sciences Po - LIEPP
Year: 2023
Subjects: classificationCode: 5
subject: FOS: Social sciences

description: Comparative historical analysis combines two major methodological tools of social science, comparison (the study of similarities and differences across cases) and history (the analysis of processes of change in their temporal dimension), to help explain large scale outcomes on a variety of topics. It is particularly useful to account for the definition of public policies (policy framing and policy change).
Optical study of superconducting Ga-rich layers in silicon
Creators: name: Fischer, T.
name: Pronin, A. V.
name: Skrotzki, R.
name: Herrmannsdörfer, T.
name: Wosnitza, J.
name: Fiedler, J.
name: Heera, V.
name: Helm, M.
name: Schachinger, E.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We performed phase-sensitive terahertz (0.12 - 1.2 THz) transmission measurements of Ga-enriched layers in silicon. Below the superconducting transition, T_{c} = 6.7 K, we find clear signatures of the formation of a superconducting condensate and of the opening of an energy gap in the optical spectra. The London penetration depth, λ(T), and the condensate density, n_{s} = λ^{2} 0)/λ^{2}(T), as functions of temperature demonstrate behavior, typical for conventional superconductors with λ(0) = 1.8 μm. The terahertz spectra can be well described within the framework of Eliashberg theory with strong electron-phonon coupling: the zero-temperature energy gap is 2Δ(0) = 2.64 meV and 2Δ(0)/k_{B}T_{c} = 4.6 \pm 0.1, consistent with the amorphous state of Ga. At temperatures just above T_{c}, the optical spectra demonstrate Drude behavior.
description: 5 pages, 4 figures
An investigation of the dimensions of school change
Creators: name: Kresowaty, Gerald M.
Publisher: name: University of Calgary
Year: 1997
Subjects: subject: LB2882.84 .C2 K74 1997
subject: Additonal Copy: 370 EDC 1997 KRE in the Doucette Education Library
subject: Educational change - Alberta - case studies
subject: High schools - Alberta - Case studies
subject: School management and organization - Alberta - Case studies

description: Bibliography: p. 200-213