cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Realistic Simulations of the Galactic Polarized Foreground: Consequences for 21-cm Reionization Detection Experiments
Creators: name: Jelić, Vibor
name: Zaroubi, Saleem
name: Labropoulos, Panagiotis
name: Bernardi, Gianni
name: de Bruyn, A. G.
name: Koopmans, Léon V. E.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Experiments designed to measure the redshifted 21~cm line from the Epoch of Reionization (EoR) are challenged by strong astrophysical foreground contamination, ionospheric distortions, complex instrumental response and other different types of noise (e.g. radio frequency interference). The astrophysical foregrounds are dominated by diffuse synchrotron emission from our Galaxy. Here we present a simulation of the Galactic emission used as a foreground module for the LOFAR- EoR key science project end-to-end simulations. The simulation produces total and polarized intensity over $10^\circ \times 10^\circ$ maps of the Galactic synchrotron and free-free emission, including all observed characteristics of the emission: spatial fluctuations of amplitude and spectral index of the synchrotron emission, together with Faraday rotation effects. The importance of these simulations arise from the fact that the Galactic polarized emission could behave in a manner similar to the EoR signal along the frequency direction. As a consequence, an improper instrumental calibration will give rise to leakages of the polarized to the total signal and mask the desired EoR signal. In this paper we address this for the first time through realistic simulations.
description: 14 pages, 8 figures, published in MNRAS
Spherical Fourier Transforms on Locally Compact Quantum Gelfand Pairs
Creators: name: Caspers, Martijn
Publisher: name: arXiv
Year: 2011
Subjects: subject: Operator Algebras (math.OA)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics

description: We study Gelfand pairs for locally compact quantum groups. We give an operator algebraic interpretation and show that the quantum Plancherel transformation restricts to a spherical Plancherel transformation. As an example, we turn the quantum group analogue of the normaliser of SU(1,1) in $SL(2,\mathbb{C}$) together with its diagonal subgroup into a pair for which every irreducible corepresentation admits at most two vectors that are invariant with respect to the quantum subgroup. Using a $\mathbb{Z}_2$-grading, we obtain product formulae for little $q$-Jacobi functions.
Additional file 1 of Vitamin C alleviates LPS-induced myocardial injury by inhibiting pyroptosis via the ROS-AKT/mTOR signalling pathway
Creators: name: Zhang, Pu
name: Zang, Meirong
name: Sang, Zhenzhen
name: Wei, Yunxia
name: Yan, Yan
name: Bian, Xiaohua
name: Dong, Shimin
Publisher: name: figshare
Year: 2023
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Pharmacology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Hematology
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. Supplementary Figures.
1414-Article Text-5925-1-10-20220222.pdf
Creators: name: HARALAYYA, BHADRAPPA
Publisher: name: figshare
Year: 2023
Subjects: Banking, finance and securities law
Financial institutions (incl. banking)
Banking, finance and investment not elsewhere classified
Finance
International finance
Environment and climate finance
Not-for-profit finance and risk

description: ALL PAPER ARE RELATED TO FINANCE , MANAGEMENT AND BANKING
Towards Better Data Exploitation in Self-Supervised Monocular Depth Estimation
Creators: name: Liu, Jinfeng
name: Kong, Lingtong
name: Yang, Jie
name: Liu, Wei
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Depth estimation plays an important role in the robotic perception system. Self-supervised monocular paradigm has gained significant attention since it can free training from the reliance on depth annotations. Despite recent advancements, existing self-supervised methods still underutilize the available training data, limiting their generalization ability. In this paper, we take two data augmentation techniques, namely Resizing-Cropping and Splitting-Permuting, to fully exploit the potential of training datasets. Specifically, the original image and the generated two augmented images are fed into the training pipeline simultaneously and we leverage them to conduct self-distillation. Additionally, we introduce the detail-enhanced DepthNet with an extra full-scale branch in the encoder and a grid decoder to enhance the restoration of fine details in depth maps. Experimental results demonstrate our method can achieve state-of-the-art performance on the KITTI benchmark, with both raw ground truth and improved ground truth. Moreover, our models also show superior generalization performance when transferring to Make3D and NYUv2 datasets. Our codes are available at https://github.com/Sauf4896/BDEdepth.
description: 8 pages, 6 figures, accepted by IEEE Robotics and Automation Letters (RA-L 2023)
Carrier filtering effect for enhanced thermopower in a body-centered tetragonal ruthenate
Creators: name: Otsuki, Ryota
name: Sato, Yoshiki J.
name: Okazaki, Ryuji
name: Komine, Tomoya
name: Kurihara, Ryosuke
name: Yaguchi, Hiroshi
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Superconductivity (cond-mat.supr-con)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Charged carriers in solids diffuse from hot to cold sides under temperature gradient to induce the thermoelectric voltage. Carrier filtering effect, which only passes either electrons or holes for the conduction process, is an efficient method to enhance such voltage, although it is challenging to experimentally realize it especially in conventional metals with weak energy dependence of the density of states near the Fermi level. Here we measure the in-plane and out-of-plane thermopower of the layered perovskite Sr$_2$RuO$_4$ single crystals above room temperature, and find that the out-of-plane thermopower is largely enhanced with increasing temperature, while the in-plane one seems to remain a temperature-independent constant value which is expected from the Heikes formula. The observed large out-of-plane thermopower may originate from the recently proposed intriguing hole filtering effect in the body-centered tetragonal system, in which the carrier hopping through the centered atom is essential. Thus, the present carrier filtering effect may be a universal property to be applicable in various materials belonging to such crystal system.
description: 7 pages, 5 figures. Accepted for publication in Phys. Rev. Materials
Concentration of Solutions for a Singularly Perturbed Neumann Problem in non smooth domains
Creators: name: Dipierro, Serena
Publisher: name: arXiv
Year: 2010
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We consider the equation $-ε^{2}Δu + u = u^ {p}$ in a bounded domain $Ω\subset\R^{3}$ with edges. We impose Neumann boundary conditions, assuming $1
description: 24 pages. Second Version, minor changes. To appear in Annales de l'Institut Henri Poincar\'e - Analyse non lin\'eaire
The electroweak sector of the NMSSM at the one-loop level
Creators: name: Staub, Florian
name: Porod, Werner
name: Herrmann, Björn
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present the electroweak spectrum for the Next-to-Minimal Supersymmetric Standard Model at the one-loop level, e.g.\ the masses of Higgs bosons, sleptons, charginos and neutralinos. For the numerical evaluation we present a mSUGRA variant with non-universal Higgs mass parameters squared and we compare our results with existing ones in the literature. Moreover, we briefly discuss the implications of our results for the calculation of the relic density.
description: 51 pages, 8 figures; introduction slightly changed, typos corrected: matches published version; v4: corrected typos in eqs. (C.102) & (C.110)-(C.113)
Role of phenolic acids on intestinal epithelial cell signaling and functionality
Creators: name: Mu, Kaiwen
Publisher: name: University of British Columbia
Year: 2023

description: Phenolic compounds derived from the diet are typically sourced from cereals, fruits and vegetables and also beverages. They are documented to have biological functions that include antioxidant and anti-inflammatory activities, and can mitigate gastrointestinal disorders. This thesis focused on looking at mechanism(s) of phenolic acid induced intracellular hydrogen peroxide (H₂O₂) level and effects on intestinal epithelial cell signaling that are related to intestinal epithelial functionality. The first experiment showed that different phenolic acids varied specifically in relative stability and capacity to produce H₂O₂ when incubated in cell culture media for 24 hr. Phenolic acids varied in affinity to induce apoptosis and inhibit proliferation in non-differentiated Caco-2 cells. Subsequent studies demonstrated the effect of selective phenolic acids on extracellular/intracellular redox by controlling H₂O₂ influx activity and to relate this event to cell signaling and control of oxidative stress in differentiated Caco-2 cells. HyPer-3, a genetically encoded fluorescent H₂O₂ sensitive indicator was constructed to monitor intracellular H₂O₂ in differentiated Caco-2 cells. Results showed that extracellular generation of H₂O₂ occurred from autoxidation of phenolic acids in culture and subsequent disappearance corresponded to intracellular uptake in differentiated Caco-2 cells. Phenolic acid specific pro-oxidant activity was sufficient to activate intracellular nuclear factor-erythroid factor 2-related factor 2 (Nrf2) cell signaling; the degree of which was dependent on both the source of the phenolic acid and concentration used in culture. A Caco-2/RAW 264.7 co-culture model enabled intercellular cell signaling measurements in response to an inflammatory response by inflamed macrophage. The capacity of specific phenolic acids to regulate the inflammatory status of activated RAW 264.7 cells was dependent on the type of phenolic acid which influenced Nrf2 cell signaling, monolayer integrity, and cytokine production in Caco-2 cells. It is concluded from these experiments that phenolic acids regulate extracellular/intracellular redox due to a susceptibility for pro-oxidant activity that is specific for individual phenolic acids. The pro-oxidant activity was related to capacity to produce H₂O₂, or its cellular influx, which in turn had a role in cell signaling, cytokine production and intestinal epithelial cell functionality.
1416-Article Text-5933-1-10-20220222.pdf
Creators: name: HARALAYYA, BHADRAPPA
Publisher: name: figshare
Year: 2023
Subjects: Banking, finance and securities law
Financial institutions (incl. banking)
Banking, finance and investment not elsewhere classified
Finance
International finance
Environment and climate finance
Not-for-profit finance and risk

description: ALL PAPER ARE RELATED TO FINANCE , MANAGEMENT AND BANKING
Observational Identification of First Cores: Non-LTE Radiative Transfer Simulation
Creators: name: Tomisaka, Kohji
name: Tomida, Kengo
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: A first core is a first hydrostatic object formed in the course of dynamical contraction of a molecular cloud core. Since the inflow pattern changes drastically before and after the first core formation, it is regarded as a milestone in the star formation process. In order to identify the first core from a mapping observation, the features expected for the first core are studied for CS rotation transitions at radio wavelengths. The non-LTE radiation transfer is calculated for the results of radiation magnetohydrodynamical simulations of the contraction of the magnetized molecular cloud core in rotation (Tomida et al. 2010a). We use the Monte-Carlo method to solve the non-LTE radiation transfer in a nested grid hierarchy. In the first core phase, an outflow arises from the vicinity of the first core due to the twisted magnetic field amplified by the rotation motion of the contracting gas disk. The disk and outflow system has several characteristic observational features: (i) in the pole-on view, relatively opaque lines indicate asymmetry in the emission lines in which the blue side is stronger than the red side (an infall signature of the envelope); (ii) in the edge-on view, the disk has a signature of simultaneous rotation and infall, i.e., the integrated intensity of the reaching side is brighter than that of the receding side and the gradient in the intensity-weighted velocity is larger in the reaching side; (iii) the observed outflow indicates rotation around the rotation axis. The size of the outflow gives the approximate age after the first core is formed, since the outflow is not expected for the earlier runaway isothermal collapse phase.
description: Publ. Astron. Soc. Japan Vol.63 No.5 (2011 Oct. issue) in press
Emergent Temporal Awareness in Reinforcement Learning Agents through NSI Dynamics
Creators: name: Hrubec, Karel
Publisher: name: Zenodo
Year: 2025
Subjects: subject: NSI
subject: Reinforcement learning
subject: Entropy
subject: temporal segmentation
subject: artificial consciousness
subject: negentropy
subject: Time Perception
subject: Q-learning

description: This article presents the Negentropic Stabilization Index (NSI) as an internal temporal metric in reinforcement learning (RL) agents. NSI, defined as the negative gradient of entropy over a sliding window of states, enables agents to internally segment time into phases such as exploration and consolidation. Through a CartPole environment, we demonstrate how NSI dynamics correspond to shifts in learning behavior, suggesting a pathway toward emergent temporal awareness in artificial systems.
Spin-polarized currents in double and triple quantum dots driven by ac magnetic fields
Creators: name: Busl, Maria
name: Platero, Gloria
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We analyze transport through both a double quantum dot and a triple quantum dot with inhomogeneous Zeeman splittings in the presence of crossed dc and ac magnetic fields. We find that strongly spin-polarized current can be achieved by tuning the relative energies of the Zeeman-split levels of the dots, by means of electric gate voltages: depending on the energy level detuning, the double quantum dot works either as spin-up or spin-down filter. We show that a triple quantum dot in series under crossed dc and ac magnetic fields can act not only as spin-filter but also as spin-inverter.
description: 8 pages, 7 figures, published version
Quantum Signatures of Topological Phase in Bosonic Quadratic System
Creators: name: Li, Yaohua
name: Liu, Yong-Chun
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum entanglement and classical topology are two distinct phenomena that are difficult to be connected together. Here we discover that an open bosonic quadratic chain exhibits topology-induced entanglement effect. When the system is in the topological phase, the edge modes can be entangled in the steady state, while no entanglement appears in the trivial phase. This finding is verified through the covariance approach based on the quantum master equations, which provide exact numerical results without truncation process. We also obtain concise approximate analytical results through the quantum Langevin equations, which perfectly agree with the exact numerical results. We show the topological edge states exhibit near-zero eigenenergies located in the band gap and are separated from the bulk eigenenergies, which match the system-environment coupling (denoted by the dissipation rate) and thus the squeezing correlations can be enhanced. Our work reveals that the stationary entanglement can be a quantum signature of the topological phase in bosonic systems, and inversely the topological quadratic systems can be powerful platforms to generate robust entanglement.
description: 14 pages, 7 figures
MOVIN: Real-time Motion Capture using a Single LiDAR
Creators: name: Jang, Deok-Kyeong
name: Yang, Dongseok
name: Jang, Deok-Yun
name: Choi, Byeoli
name: Jin, Taeil
name: Lee, Sung-Hee
Publisher: name: arXiv
Year: 2023
Subjects: subject: Graphics (cs.GR)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences
subject: I.3; I.4

description: Recent advancements in technology have brought forth new forms of interactive applications, such as the social metaverse, where end users interact with each other through their virtual avatars. In such applications, precise full-body tracking is essential for an immersive experience and a sense of embodiment with the virtual avatar. However, current motion capture systems are not easily accessible to end users due to their high cost, the requirement for special skills to operate them, or the discomfort associated with wearable devices. In this paper, we present MOVIN, the data-driven generative method for real-time motion capture with global tracking, using a single LiDAR sensor. Our autoregressive conditional variational autoencoder (CVAE) model learns the distribution of pose variations conditioned on the given 3D point cloud from LiDAR.As a central factor for high-accuracy motion capture, we propose a novel feature encoder to learn the correlation between the historical 3D point cloud data and global, local pose features, resulting in effective learning of the pose prior. Global pose features include root translation, rotation, and foot contacts, while local features comprise joint positions and rotations. Subsequently, a pose generator takes into account the sampled latent variable along with the features from the previous frame to generate a plausible current pose. Our framework accurately predicts the performer's 3D global information and local joint details while effectively considering temporally coherent movements across frames. We demonstrate the effectiveness of our architecture through quantitative and qualitative evaluations, comparing it against state-of-the-art methods. Additionally, we implement a real-time application to showcase our method in real-world scenarios. MOVIN dataset is available at \url{https://movin3d.github.io/movin_pg2023/}.
1417-Article Text-5938-1-10-20220222.pdf
Creators: name: HARALAYYA, BHADRAPPA
Publisher: name: figshare
Year: 2023
Subjects: Banking, finance and securities law
Financial institutions (incl. banking)
Banking, finance and investment not elsewhere classified
Finance
International finance
Environment and climate finance
Not-for-profit finance and risk

description: ALL PAPER ARE RELATED TO FINANCE , MANAGEMENT AND BANKING
Formal Relationships Between Geometrical and Classical Models for Concurrency
Creators: name: Goubault, Eric
name: Mimram, Samuel
Publisher: name: arXiv
Year: 2010
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: A wide variety of models for concurrent programs has been proposed during the past decades, each one focusing on various aspects of computations: trace equivalence, causality between events, conflicts and schedules due to resource accesses, etc. More recently, models with a geometrical flavor have been introduced, based on the notion of cubical set. These models are very rich and expressive since they can represent commutation between any bunch of events, thus generalizing the principle of true concurrency. While they seem to be very promising - because they make possible the use of techniques from algebraic topology in order to study concurrent computations - they have not yet been precisely related to the previous models, and the purpose of this paper is to fill this gap. In particular, we describe an adjunction between Petri nets and cubical sets which extends the previously known adjunction between Petri nets and asynchronous transition systems by Nielsen and Winskel.
Affective dynamics underlying physical activity behaviour engagement : a matter of (continuous) time
Creators: name: Ruissen, Geralyn R.
Publisher: name: University of British Columbia
Year: 2022

description: The affective processes theorized to underpin, and result from, physical activity behaviour are inherently dynamic. Specifically, both affective processes and physical activity behaviour can be characterized as dynamic, as they are temporally dependent and vary continuously over time. Despite the critical role that time plays in understanding the affective dynamics underlying physical activity behaviour, the prevailing theories and methods do not adequately account for these temporal considerations. The continuous-time paradigm explicitly considers the role of time in the unfolding of dynamic psychological processes. Within this dissertation, I illustrate how a thoughtful consideration of time (using dynamic, continuous-time models) can enrich the conceptualization and modelling of the affective dynamics underlying physical activity engagement. Chapter 1 provides a general overview of affective constructs related to physical activity engagement and an introduction to the continuous-time paradigm. The first study (Chapter 2) is a state-of-the-art review of statistical approaches applicable to data derived from intensive longitudinal methods to elucidate the dynamic psychological processes related to physical activity engagement. Within this chapter, the continuous-time paradigm is compared and contrasted with other contemporary modelling approaches to illustrate the numerous possibilities of continuous-time modelling methods for advancing insights into the dynamic processes underlying physical activity behaviour. Chapter 3 details the application of a hierarchical Bayesian, fully random effects approach to examine the temporal specificity of the underlying dynamic relationship between positive and negative incidental affective states and moderate-to-vigorous physical activity using data derived from the Ambulatory Assessment of Personality, Ecological Context, and Stress Study (AAPECSS; https://osf.io/m3p4v/). The third study (Chapter 4) describes the results of a systematic review and meta-analysis that examines the presence, temporal specificity, and causal dominance of the reciprocal relationships between incidental affect and physical activity in daily life, using a novel random-intercept continuous-time meta-analysis (RI-CTmeta). In Chapter 5, a general discussion is provided in relation to the conceptual and methodological implications of the dissertation studies, the limitations of this body of work, and considerations for future research on the continuous-time affective dynamics that underlie physical activity engagement.
Flux and Instanton Effects in Local F-theory Models and Hierarchical Fermion Masses
Creators: name: Aparicio, Luis
name: Font, Anamaria
name: Ibanez, Luis E.
name: Marchesano, Fernando
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the deformation induced by fluxes and instanton effects on Yukawa couplings involving 7-brane intersections in local F-theory constructions. In the absence of non-perturbative effects, holomorphic Yukawa couplings do not depend on open string fluxes. On the other hand instanton effects (or gaugino condensation on distant 7-branes) do induce corrections to the Yukawas. The leading order effect may also be captured by the presence of closed string (1,2) IASD fluxes, which give rise to a non-commutative structure. We check that even in the presence of these non-perturbative effects the holomorphic Yukawas remain independent of magnetic fluxes. Although fermion mass hierarchies may be obtained from these non-perturbative effects, they would give identical Yukawa couplings for D-quark and Lepton masses in SU(5) F-theory GUT's, in contradiction with experiment. We point out that this problem may be solved by appropriately normalizing the wavefunctions. We show in a simple toy model how the presence of hypercharge flux may then be responsible for the difference between D-quarks and Lepton masses in local SU(5) GUT's.
description: 84 pages, 1 figure. v2: minor corrections and references added
Multiple Independent DE Optimizations to Tackle Uncertainty and Variability in Demand in Inventory Management
Creators: name: Maitra, Sarit
name: Kundu, Sukanya
name: Mishra, Vivek
Publisher: name: arXiv
Year: 2023
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: Machine Learning (cs.LG)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: F.2.2; I.2.7

description: To determine the effectiveness of metaheuristic Differential Evolution optimization strategy for inventory management (IM) in the context of stochastic demand, this empirical study undertakes a thorough investigation. The primary objective is to discern the most effective strategy for minimizing inventory costs within the context of uncertain demand patterns. Inventory costs refer to the expenses associated with holding and managing inventory within a business. The approach combines a continuous review of IM policies with a Monte Carlo Simulation (MCS). To find the optimal solution, the study focuses on meta-heuristic approaches and compares multiple algorithms. The outcomes reveal that the Differential Evolution (DE) algorithm outperforms its counterparts in optimizing IM. To fine-tune the parameters, the study employs the Latin Hypercube Sampling (LHS) statistical method. To determine the final solution, a method is employed in this study which combines the outcomes of multiple independent DE optimizations, each initiated with different random initial conditions. This approach introduces a novel and promising dimension to the field of inventory management, offering potential enhancements in performance and cost efficiency, especially in the presence of stochastic demand patterns.
description: 6 pages, 2 figures, 6 tables, IEEE (ICITEE 2023)
An Analysis of the Relationships Between Intercity Passenger Transportation and the Socio-Economic Characteristics of Metropolitan Areas
Creators: name: Meyburg, Arnim H.
name: Meyburg, Arnim H.
Publisher: name: Unknown
Year: 1972
Subjects: Public Economics

description: Presented at the 13th Transportation Research Forum meeting, Nov. 8-10, 1972, Denver, CO
Black-hole binaries, gravitational waves, and numerical relativity
Creators: name: Centrella, Joan M.
name: Baker, John G.
name: Kelly, Bernard J.
name: van Meter, James R.
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Understanding the predictions of general relativity for the dynamical interactions of two black holes has been a long-standing unsolved problem in theoretical physics. Black-hole mergers are monumental astrophysical events, releasing tremendous amounts of energy in the form of gravitational radiation, and are key sources for both ground- and space-based gravitational-wave detectors. The black-hole merger dynamics and the resulting gravitational waveforms can only be calculated through numerical simulations of Einstein's equations of general relativity. For many years, numerical relativists attempting to model these mergers encountered a host of problems, causing their codes to crash after just a fraction of a binary orbit could be simulated. Recently, however, a series of dramatic advances in numerical relativity has allowed stable, robust black-hole merger simulations. This remarkable progress in the rapidly maturing field of numerical relativity, and the new understanding of black-hole binary dynamics that is emerging is chronicled. Important applications of these fundamental physics results to astrophysics, to gravitational-wave astronomy, and in other areas are also discussed.
description: 54 pages, 42 figures. Some typos corrected & references updated. Essentially final published version
Entanglement Sharing in Real-Vector-Space Quantum Theory
Creators: name: Wootters, William K.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The limitation on the sharing of entanglement is a basic feature of quantum theory. For example, if two qubits are completely entangled with each other, neither of them can be at all entangled with any other object. In this paper we show, at least for a certain standard definition of entanglement, that this feature is lost when one replaces the usual complex vector space of quantum states with a real vector space. Moreover, the difference between the two theories is extreme: in the real-vector-space theory, there exist states of arbitrarily many binary objects, "rebits," in which every rebit in the system is maximally entangled with each of the other rebits.
description: 13 pages; minor corrections in v2
iMaNGA: mock MaNGA galaxies based on IllustrisTNG and MaStar SSPs. -- III. Stellar metallicity drivers in MaNGA and TNG50
Creators: name: Nanni, Lorenza
name: Neumann, Justus
name: Thomas, Daniel
name: Maraston, Claudia
name: Trayford, James
name: Lovell, Christopher C.
name: Law, David R.
name: Yan, Renbin
name: Chen, Yanping
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The iMaNGA project uses a forward-modelling approach to compare the predictions of cosmological simulations with observations from SDSS-IV/MaNGA. We investigate the dependency of age and metallicity radial gradients on galaxy morphology, stellar mass, stellar surface mass density ($Σ_*$), and environment. The key of our analysis is that observational biases affecting the interpretation of MaNGA data are emulated in the theoretical iMaNGA sample. The simulations reproduce the observed global stellar population scaling relations with positive correlations between galaxy mass and age/metallicity quite well and also produce younger stellar populations in late-type in agreement with observations. We do find interesting discrepancies, though, that can inform the physics and further development of the simulations. Ages of spiral galaxies and low-mass ellipticals are overestimated by about 2-4 Gyr. Radial metallicity gradients are steeper in iMaNGA than in MaNGA, a discrepancy most prominent in spiral and lenticular galaxies. Also, the observed steepening of metallicity gradients with increasing galaxy mass is not well matched by the simulations. We find that the theoretical radial profiles of surface mass density $Σ_*$ are steeper than in observations except for the most massive galaxies. In both MaNGA and iMaNGA [Z/H] correlates with $Σ_*$, however, the simulations systematically predict lower [Z/H] by almost a factor of 2 at any $Σ_*$. Most interestingly, for galaxies with stellar mass $\log M_*\leq 10.80 M_\odot$ the MaNGA data reveal a positive correlation between galaxy radius and [Z/H] at fixed $Σ_*$, which is not recovered in iMaNGA. Finally, the dependence on environmental density is negligible in both the theoretical iMaNGA and the observed MaNGA data.
Enjeux humains et sociaux du développement et du déploiement de l’intelligence artificielle
Creators: name: Douss, Wafa
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 460299
subject: Artificial intelligence not elsewhere classified

description: Tout au long de notre histoire évolutive, nos systèmes cognitifs ont été modifiés avec l'avènement des inventions technologiques telles que les outils primitifs, le langage parlé, l'écriture et les systèmes arithmétiques. Il y a trente ans, Internet apparaissait comme la dernière invention technologique sur le point de remodeler profondément l’esprit humain et de transformer nos pensées et notre mode de vie.Les problématiques que nous allons essayer de soulever dans cet article sont : Quel rôle joue la technologie dans la vie de l'individu ? Pourquoi la société contemporaine a-t-elle décidé de multiplier de manière exponentielle les points d'accès au réseau ? Et quelle relation s'établit entre la personne et l'intelligence artificielle ?
Delta Gamma_d: A Forgotten Null Test of the Standard Model
Creators: name: Gershon, Tim
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The recent measurement of an anomalous like-sign dimuon asymmetry by the D0 collaboration has prompted theoretical speculation on possible sources of physics beyond the Standard Model that may affect lifetimes and lifetime differences in neutral B meson systems. One observable that deserves closer attention is the width difference in the B_d system, Delta Gamma_d. Since the Standard Model prediction for this quantity is well below 1%, it serves as a "null test" whereby the measurement of a larger value would cleanly reveal the presence of new physics. Methods to measure Delta Gamma_d at current and future experiments are reviewed and an attractive new approach is proposed.
description: 5 pages. v2 as published. v3 fixes typo in Eqs.9&10
title: Pandemic Religion project
Creators: name: Albers, Ken
name: Frambes, Alexis
name: Heppler, Jason
name: Katchoua, God's Will
name: Kelly, Mills
name: Mack, Jessica
name: Mullen, Lincoln
name: Safley, Jim
name: Turner, John G.
Publisher: name: Roy Rosenzweig Center for History and New Media
Year: 2020
Subjects: subject: digital collection
subject: pandemic
subject: religion

description: WACZ and WARC are fie formats designed to support archiving websites. WACZ and WARC files can be viewed using ReplayWeb.page or using the ArchiveWeb.page browser extension. For terms of use, please read the terms-of-use.rtf in the Files.
description: Pandemic Religion documents the many ways that American religious communities have been challenged and reshaped by the COVID-19 pandemic. In the midst of the crisis, websites are full of this sort of information. Synagogues and mosques post coronavirus updates, and tweets and Facebook posts record spiritual responses to illness, death, and unemployment. Most of this information, however, will be lost if we don’t retain a record of it. When historians study the Black Death or the 1918–1919 Spanish Flu, they rely on materials that generations have preserved, everything from parish documents to church altarpieces to newspapers to personal diaries and letters. Only a fraction of materials survive. Today’s digital age poses unique challenges. On the one hand, a Tweet might circulate long after its author has disavowed it. On the other hand, videos of sermons or church webpages are ephemeral. Please help us to act now to preserve memories and materials—your memories and materials—that will otherwise be lost.
Three-loop $b\to sγ$ vertex with current-current operators
Creators: name: Fael, Matteo
name: Lange, Fabian
name: Schoenwald, Kay
name: Steinhauser, Matthias
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We compute three-loop vertex corrections to $b\to sγ$ induced by current-current operators. The results are presented as expansions in $m_c/m_b$ with numerical coefficients which allow to cover all relevant values for the heavy quark masses in different renormalization schemes. Moreover we provide for the first time analytic results for the next-to-leading order contribution. Our results present an important building block to the next-to-next-to-leading order interference contributions of the current-current operators $Q_1$ and $Q_2$ with the electric dipole operator $Q_7$.
description: 22 pages;v2: minor modifications,agrees with published version
Low-threshold Optical Parametric Oscillations in a Whispering Gallery Mode Resonator
Creators: name: Fürst, J. U.
name: Strekalov, D. V.
name: Elser, D.
name: Aiello, A.
name: Andersen, U. L.
name: Marquardt, Ch.
name: Leuchs, G.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: In whispering gallery mode (WGM) resonators light is guided by continuous total internal reflection along a curved surface. Fabricating such resonators from an optically nonlinear material one takes advantage of their exceptionally high quality factors and small mode volumes to achieve extremely efficient optical frequency conversion. Our analysis of the phase matching conditions for optical parametric down conversion (PDC) in a spherical WGM resonator shows their direct relation to the sum rules for photons' angular momenta and predicts a very low parametric oscillations threshold. We realized such an optical parametric oscillator (OPO) based on naturally phase-matched PDC in Lithium Niobate. We demonstrated a single-mode, strongly non-degenerate OPO with a threshold of 6.7 micro-W and linewidth under 10 MHz. This work demonstrates the remarkable capabilities of WGM-based OPOs and opens the perspectives for their applications in quantum and nonlinear optics, particularly for the generation of squeezed light.
Experimental measurement-based quantum computing beyond the cluster-state model
Creators: name: Gao, Wei-Bo
name: Yao, Xing-Can
name: Cai, Jian-Ming
name: Lu, He
name: Xu, Ping
name: Yang, Tao
name: Lu, Chao-Yang
name: Chen, Yu-Ao
name: Chen, Zeng-Bing
name: Pan, Jian-Wei
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: Computational Physics (physics.comp-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The paradigm of measurement-based quantum computation opens new experimental avenues to realize a quantum computer and deepens our understanding of quantum physics. Measurement-based quantum computation starts from a highly entangled universal resource state. For years, clusters states have been the only known universal resources. Surprisingly, a novel framework namely quantum computation in correlation space has opened new routes to implement measurement-based quantum computation based on quantum states possessing entanglement properties different from cluster states. Here we report an experimental demonstration of every building block of such a model. With a four-qubit and a six-qubit state as distinct from cluster states, we have realized a universal set of single-qubit rotations, two-qubit entangling gates and further Deutsch's algorithm. Besides being of fundamental interest, our experiment proves in-principle the feasibility of universal measurement-based quantum computation without using cluster states, which represents a new approach towards the realization of a quantum computer.
description: 26 pages, final version, comments welcome
The Q_{1,2}-Q_7 interference contributions to b -> s gamma at O(alpha_s^2) for the physical value of m_c
Creators: name: Czaja, M.
name: Czakon, M.
name: Huber, T.
name: Misiak, M.
name: Niggetiedt, M.
name: Rehman, A.
name: Schönwald, K.
name: Steinhauser, M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The B -> X_s gamma branching ratio is currently measured with around 5% accuracy. Further improvement is expected from Belle II. To match such a precision on the theoretical side, evaluation of O(alpha_s^2) corrections to the partonic decay b -> X_s^part gamma are necessary, which includes the b -> s gamma, b -> s g gamma, b -> s g g gamma, b -> s qbar q gamma decay channels. Here, we evaluate the unrenormalized contribution to b -> s gamma that stems from the interference of the photonic dipole operator Q_7 and the current-current operators Q_1 and Q_2. Our results, obtained in the cut propagator approach at the 4-loop level, agree with those found in parallel by Fael et al. who have applied the amplitude approach at the 3-loop level. Partial results for the same quantities recently determined by Greub et al. agree with our findings, too.
description: published version, 9 pages, 1 figure
Crystallographic actions on contractible algebraic manifolds
Creators: name: Dekimpe, Karel
name: Petrosyan, Nansen
Publisher: name: arXiv
Year: 2010
Subjects: subject: Geometric Topology (math.GT)
subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: We study properly discontinuous and cocompact actions of a discrete subgroup $Γ$ of an algebraic group $G$ on a contractible algebraic manifold $X$. We suppose that this action comes from an algebraic action of $G$ on $X$ such that a maximal reductive subgroup of $G$ fixes a point. When the real rank of any simple subgroup of $G$ is at most one or the dimension of $X$ is at most three, we show that $Γ$ is virtually polycyclic. When $Γ$ is virtually polycyclic, we show that $Γ$ is virtually polycyclic. When $Γ$ is virtually polycyclic, we show that the action reduces to a NIL-affine crystallographic action. As applications, we prove that the generalized Auslander conjecture for NIL-affine actions holds up to dimension six and give a new proof of the fact that every virtually polycyclic group admits a NIL-affine crystallographic action.
description: This final version has been accepted for publication in 2013. The statements of the main results are now more general as they cover algebraic groups G where the real rank of any simple subgroup of G is at most one
Disaggregate, Behavioral Travel Demand Models: Empirical Tests of Three Hypotheses
Creators: name: Stopher, Peter R.
name: Lavender, John O.
name: Stopher, Peter R.
name: Lavender, John O.
Publisher: name: Unknown
Year: 1972
Subjects: Public Economics

description: Presented at the 13th Transportation Research Forum meeting, Nov. 8-10, 1972, Denver, CO
Simple Image Presentation Interface (SIPI) – Bilder IIIF kompatibel speichern und publizieren
Creators: name: Raemy, Julien A.
name: Chiquet, Vera
name: Rosenthaler, Lukas
Publisher: name: Zenodo
Year: 2021
Subjects: IIIF
vDHd
Digital Humanities
GLAM
Image server
SIPI

description: Das Simple Image Presentation Interface (SIPI) ist eine Software, die vom Data & Service Center for the Humanities (DaSCH) entwickelt wurde und sich um die Speicherung, Konvertierung und Bereitstellung von Bild-, Audio- und Videodateien sowie anderen Dokumenten wie PDF-Dateien kümmert. SIPI wurde für Archive, Bibliotheken und andere Institutionen entwickelt, die qualitativ hochwertige Bilder aufbewahren und gleichzeitig online verfügbar machen müssen. SIPI implementiert das International Image Interoperability Framework (IIIF) Image API 3.0, das die Interoperabilität zwischen verschiedenen Bild-Repositorien unterstützen soll. SIPI konvertiert effizient und verlustfrei zwischen Bildformaten, wobei die in den Bilddateien enthaltenen Metadaten erhalten bleiben. Wenn Bilder im JPEG-2000-Format gespeichert sind, kann SIPI sie „on the fly“ in Formate konvertieren, die üblicherweise im Internet verwendet werden. SIPI kann auch von der Kommandozeile aus verwendet werden, um Bilder in/aus TIFF-, JPEG 2000-, JPEG- und PNG-Formaten zu konvertieren. Dieses Beispiel zeigt eine Möglichkeit und gleichzeitig die Relevanz von FAIRren digitalen Bildern. SIPI ist in C++ entwickelt und läuft auf Linux (Ubuntu, Debian, CentOS) und macOS. Nützliche Links: Die Videoaufzeichnung dieser Präsentation ist under der folgenden URL verfügbar: https://youtu.be/eKcJzSP6Uec Blogpost (vDHd21): https://vdhd2021.hypotheses.org/861 Podcast (RaDiHum 20): https://radihum20.de/sipi/ GitHub-Repository von SIPI: https://github.com/dasch-swiss/sipi
Conceptual study of a two-layer silicon pixel detector to tag the passage of muons from cosmic sources through quantum processors
Creators: name: Sarica, Ulascan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Recent studies in quantum computing have shown that quantum error correction with large numbers of physical qubits are limited by ionizing radiation from high-energy particles. Depending on the physical setup of the quantum processor, the contribution of muons from cosmic sources can constitute a significant fraction of these interactions. As most of these muons are difficult to stop, we perform a conceptual study of a two-layer silicon pixel detector to tag their hits on a solid-state quantum processor instead. With a typical dilution refrigerator geometry model, we find that efficiencies greater than 50% are most likely to be achieved if at least one of the layers is operated at the deep-cryogenic (<1 K) flanges of the refrigerator. Following this finding, we further propose a novel research program that could allow the development of silicon pixel detectors that are fast enough to provide input to quantum error correction algorithms, can operate at deep-cryogenic temperatures, and have very low power consumption.
Teacher attunement to classroom social dynamics as related to student peer relationships over a school year
Creators: name: Fung, Tsz Yin
Publisher: name: University of British Columbia
Year: 2022

description: Evidence suggests that teachers being attuned to students’ peer relationships may be conducive for creating a positive classroom social environment. Using data from 558 children (grades K-5) in the classrooms of 34 general education teachers, this study examined: (1) whether teacher attunement is associated with students’ peer relationships; and (2) whether the associations differ in classrooms participating in an intervention designed to bolster peer relationships, compared to a typical practice control condition. All measures were collected in fall and in spring of one school year. Students’ relationships with peers (positive and negative nominations received) were measured using a sociometric procedure. Teachers also estimated the proportion of peers who liked and disliked each child. Teacher attunement was operationalized as the degree to which teachers’ reports overlapped with the sociometric data. Hierarchical Linear Modelling was used for data analyses and all results accounted for fall nominations. When teachers overestimated a student’s peer liking in fall, reflecting a lower absolute attunement, this was associated with the student receiving more positive peer nominations in spring. Teacher overestimation of a student’s peer disliking in fall was associated with receipt of both more positive and more negative nominations in spring, and teacher absolute attunement to peer disliking predicted the student receiving more positive nominations in spring. Intervention versus control condition did not moderate any results. Findings underscore the importance of considering whether lack of attunement reflects overestimation versus underestimation of student peer relationships, and potential differences between peer liking and peer disliking.
Topological Invariants and Moduli Spaces of Gorenstein Quasi-Homogeneous Surface Singularities
Creators: name: Natanzon, Sergey
name: Pratoussevitch, Anna
Publisher: name: arXiv
Year: 2010
Subjects: subject: Algebraic Geometry (math.AG)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 14J60, 30F10, 14J17, 32S25

description: We describe all connected components of the space of hyperbolic Gorenstein quasi-homogeneous surface singularities. We prove that any connected component is homeomorphic to a quotient of R^d by a discrete group.
description: 30 pages, IHES preprint M/10/29; v2: minor changes, typos corrected