cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Seismic performance evaluation and design of a novel piston based self-centering bracing system
Creators: name: Haque, A. B. M. Rafiqul
Publisher: name: University of British Columbia
Year: 2017

description: Buildings designed and constructed using current seismic design codes experience nonlinear deformation during strong earthquakes; resulting in hysteretic damping. This behavior is necessary for dissipating energy from an earthquake. Thus, buildings with traditional structural systems experience permanent deformation after seismic events, resulting in enormous economic losses. To resolve this issue, researchers have developed various smart structural systems in the past decades. One such system is the novel piston based self-centering bracing (PBSC) system. This study investigates the cyclic performance of this bracing system in finite element environment to predict its load-deformation response during seismic events. This newly developed bracing system utilizes Nickel Titanium (Nitinol) based shape memory alloy (SMA) bars inside a sleeve-piston assembly for the self-centering mechanism. During cyclic loading, the bars are pulled from opposite directions to avoid compressive loading on the bars. The energy dissipation is achieved through nonlinear load deformation hysteresis. Furthermore, this bracing system can be designed to be buckling restraint. The system exhibits flag shaped force-deformation hysteresis. A unique hysteresis model is proposed from the simulated hysteresis response of this bracing system. This hysteresis model is implemented in a commercial structural analysis and design software known as “S-FRAME.” In the next phase, seismic performance of steel frames equipped with the PBSC bracing system has been evaluated. Overstrength and force reduction factors were determined using FEMA P695 methodology. Using these factors, PBSC braced frames were designed and their seismic performance was assessed in terms of inter-story drift ratios. Furthermore, the seismic performance of PBSC braced frame was also compared against buckling restrained braced frames in terms of fragility function. Finally, this research presents a design methodology for this bracing system.
Sobolev metrics on shape space of surfaces
Creators: name: Bauer, Martin
name: Harms, Philipp
name: Michor, Peter W.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Differential Geometry (math.DG)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 58B20, 58D15, 58E12

description: Let $M$ and $N$ be connected manifolds without boundary with $\dim(M) < \dim(N)$, and let $M$ compact. Then shape space in this work is either the manifold of submanifolds of $N$ that are diffeomorphic to $M$, or the orbifold of unparametrized immersions of $M$ in $N$. We investigate the Sobolev Riemannian metrics on shape space: These are induced by metrics of the following form on the space of immersions: $$ G^P_f(h,k) = \int_{M} \g(P^f h, k)\, \vol(f^*\g)$$ where $\g$ is some fixed metric on $N$, $f^*\g$ is the induced metric on $M$, $h,k \in Γ(f^*TN)$ are tangent vectors at $f$ to the space of embeddings or immersions, and $P^f$ is a positive, selfadjoint, bijective scalar pseudo differential operator of order $2p$ depending smoothly on $f$. We consider later specifically the operator $P^f=1 + AΔ^p$, where $Δ$ is the Bochner-Laplacian on $M$ induced by the metric $f^*\bar g$. For these metrics we compute the geodesic equations both on the space of immersions and on shape space, and also the conserved momenta arising from the obvious symmetries. We also show that the geodesic equation is well-posed on spaces of immersions, and also on diffeomorphism groups. We give examples of numerical solutions.
description: 52 pages, final version as it will appear
CA-SBA-3215: Archaeological Site Record for CA-SBA-3215
Creators: name: Zalud, Arianna
Year: 1995
Subjects: subject: Santa Barbara (County)
valueUri: https://core.tdar.org/browse/geographic-keyword/3486/santa-barbara-county
subject: Vandenberg Air Force Base (VAFB)
valueUri: https://core.tdar.org/browse/geographic-keyword/85469/vandenberg-air-force-base-vafb
subject: Vandenberg Space Force Base (VSFB)
valueUri: https://core.tdar.org/browse/geographic-keyword/85584/vandenberg-space-force-base-vsfb
subject: United States of America (Country)
valueUri: https://core.tdar.org/browse/geographic-keyword/384/united-states-of-america-country
subject: North America (Continent)
valueUri: https://core.tdar.org/browse/geographic-keyword/2890/north-america-continent
subject: California (State / Territory)
valueUri: https://core.tdar.org/browse/geographic-keyword/1484/california-state-territory
subject: Prehistoric
valueUri: https://core.tdar.org/browse/temporal-keyword/53/prehistoric
subject: CA-SBA-3215
valueUri: https://core.tdar.org/browse/site-name/118277/ca-sba-3215
subject: SA-75
valueUri: https://core.tdar.org/browse/site-name/137484/sa-75
subject: Archaeological Feature
valueUri: https://core.tdar.org/browse/site-type/339/archaeological-feature
subject: Artifact Scatter
valueUri: https://core.tdar.org/browse/site-type/340/artifact-scatter
subject: Shell
valueUri: https://core.tdar.org/browse/material-type/14/shell
subject: Monterey Chert
valueUri: https://core.tdar.org/browse/material-type/334/monterey-chert
subject: Chipped Stone
valueUri: https://core.tdar.org/browse/material-type/2/chipped-stone
subject: Mytilus sp.
valueUri: https://core.tdar.org/browse/material-type/3236/mytilus-sp
subject: Tegula sp.
valueUri: https://core.tdar.org/browse/material-type/3672/tegula-sp
subject: Lithic Scatter
valueUri: https://core.tdar.org/browse/material-type/2473/lithic-scatter
subject: Shell Scatter
valueUri: https://core.tdar.org/browse/material-type/3932/shell-scatter
subject: Archaeological Overview
valueUri: https://core.tdar.org/browse/investigation-type/1/archaeological-overview
subject: Reconnaissance / Survey
valueUri: https://core.tdar.org/browse/investigation-type/7/reconnaissance-survey

description: This document is the archaeological site record for CA-SBA-3215. The record consists of a single recordation event.
Open Access: Diversität oder Chancenungleichheit?
Creators: name: Halbherr, Verena R.
name: Reimer, Nadine
Publisher: name: Zenodo
Year: 2021
Subjects: Open Access
Publicaction gap
gender
Bibliodiversity
empirische Daten
Hochschule für Angewandte Wissenschaften
Pädagogische Hochschule

description: Hintergrund: Open-Access-Publizieren verändert die Publikationslandschaft. Erhöhte potentielle Sichtbarkeit, Wettbewerbsfähigkeit und beschleunigter Austausch von Forschungsergebnissen sind nur einige von vielen Vorteilen. Hier stellt sich die Frage, ob von diesem Wandel der Publikationslandschaft bestimmte Personengruppen unterschiedlich stark profitieren. Die Analyse von Open-Access-Publikationen und der benötigten Infrastruktur für Open Access lassen die Frage aufkommen, ob es einen Gender-Open-Access-Publication-Gap gibt. Methodik: Im Rahmen der empirischen Erhebungen des vom Ministerium für Wissenschaft, Forschung und Kunst Baden-Württemberg geförderten Projekts „Implementierung von Open Access an HAWen und PHen in Baden-Württemberg“ (Befragung von 563 Wissenschaftler:innen aus 11 Hochschulen für Angewandte Wissenschaften (HAW) und Pädagogischen Hochschulen (PH) im Herbst 2020) zeigte sich, dass sich die Quantität von Publikationen, auch von Open-Access-Publikationen, zwischen den Geschlechtern an HAWen und PHen unterscheidet. Ergebnisse: Näher beleuchtet werden die Fragen, ob die Unterschiede in der Häufigkeit der OA-Publikationen durch Faktoren wie Fachbereich, Erwerbsumfang (Vollzeit vs. Teilzeit), berufliche Stellung (Professor:in vs. Wissenschaftliche:r Mitarbeiter:in), Alter und Hochschultyp erklärt werden können, oder ob das Geschlecht im Publikationsverhalten eine Rolle spielt. Darüber hinaus werden weitere „weiche“ Faktoren wie die Motivation zu publizieren, Motivation OA zu publizieren, Hemmnisse, Wahrnehmung von Vorteilen und Nachteilen der OA-Publikationen untersucht und Unterschiede zwischen den Geschlechtern dargestellt. Diskussion: Es gibt Unterschiede in der Häufigkeit der OA-Publikationen und in den „weichen Faktoren“. Profitieren die Geschlechter unterschiedlich stark von dem Trend hin zu mehr Open-Access-Publikationen? Sind diese Ergebnisse auch für universitäre Forschung gültig oder eine Besonderheit der HAWen und PHen?
Re-starting Anticoagulation and Antiplatelets after Gastrointestinal bleeding: A Systematic Review
Creators: name: Slouha, Ethan
name: Jensen, Haley
name: Fozo, Hope
name: Raj, Rhea
name: Thomas, Sneha
name: Gorantla, Vasavi
Publisher: name: figshare
Year: 2023
Subjects: Gastroenterology and hepatology
Clinical pharmacology and therapeutics

description: Summarize the effects and when to administer anticoagulants and antiplatelets following a GI-bleed
CA-SBA-982: Archaeological Site Record for CA-SBA-982
Creators: name: Zalud, Arianna
Year: 1983
Subjects: subject: Santa Barbara (County)
valueUri: https://core.tdar.org/browse/geographic-keyword/3486/santa-barbara-county
subject: Vandenberg Air Force Base (VAFB)
valueUri: https://core.tdar.org/browse/geographic-keyword/85469/vandenberg-air-force-base-vafb
subject: Vandenberg Space Force Base (VSFB)
valueUri: https://core.tdar.org/browse/geographic-keyword/85584/vandenberg-space-force-base-vsfb
subject: United States of America (Country)
valueUri: https://core.tdar.org/browse/geographic-keyword/384/united-states-of-america-country
subject: North America (Continent)
valueUri: https://core.tdar.org/browse/geographic-keyword/2890/north-america-continent
subject: California (State / Territory)
valueUri: https://core.tdar.org/browse/geographic-keyword/1484/california-state-territory
subject: SBA 982
valueUri: https://core.tdar.org/browse/site-name/138370/sba-982
subject: CA-SBA-982
valueUri: https://core.tdar.org/browse/site-name/136969/ca-sba-982
subject: trace to moderate density shell
valueUri: https://core.tdar.org/browse/site-type/5470/trace-to-moderate-density-shell
subject: light to moderate density chipping waste (0.5 - 10cm)
valueUri: https://core.tdar.org/browse/site-type/5474/light-to-moderate-density-chipping-waste-05-10cm
subject: Archaeological Feature
valueUri: https://core.tdar.org/browse/site-type/339/archaeological-feature
subject: Artifact Scatter
valueUri: https://core.tdar.org/browse/site-type/340/artifact-scatter
subject: Shell
valueUri: https://core.tdar.org/browse/material-type/14/shell
subject: Asphaltum
valueUri: https://core.tdar.org/browse/material-type/160/asphaltum
subject: Basket Hopper Mortar Fragment
valueUri: https://core.tdar.org/browse/material-type/3936/basket-hopper-mortar-fragment
subject: Chipped Stone
valueUri: https://core.tdar.org/browse/material-type/2/chipped-stone
subject: cracked cobbles
valueUri: https://core.tdar.org/browse/material-type/3459/cracked-cobbles
subject: Ground Stone
valueUri: https://core.tdar.org/browse/material-type/7/ground-stone
subject: Lithic Debitage
valueUri: https://core.tdar.org/browse/material-type/2812/lithic-debitage
subject: Shell Scatter
valueUri: https://core.tdar.org/browse/material-type/3932/shell-scatter
subject: Archaeological Overview
valueUri: https://core.tdar.org/browse/investigation-type/1/archaeological-overview
subject: Reconnaissance / Survey
valueUri: https://core.tdar.org/browse/investigation-type/7/reconnaissance-survey

description: This document is the archaeological site record for CA-SBA-982. The record consists of 3 recordation events.
Characterizing and Quantifying Frustration in Quantum Many-Body Systems
Creators: name: Giampaolo, S. M.
name: Gualdi, G.
name: Monras, A.
name: Illuminati, F.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a general scheme for the study of frustration in quantum systems. We introduce a universal measure of frustration for arbitrary quantum systems and we relate it to a class of entanglement monotones via an exact inequality. If all the (pure) ground states of a given Hamiltonian saturate the inequality, then the system is said to be inequality saturating. We introduce sufficient conditions for a quantum spin system to be inequality saturating and confirm them with extensive numerical tests. These conditions provide a generalization to the quantum domain of the Toulouse criteria for classical frustration-free systems. The models satisfying these conditions can be reasonably identified as geometrically unfrustrated and subject to frustration of purely quantum origin. Our results therefore establish a unified framework for studying the intertwining of geometric and quantum contributions to frustration.
description: 8 pages, 1 figure
Adding control to arbitrary unknown quantum operations
Creators: name: Zhou, Xiao-Qi
name: Ralph, Timothy C.
name: Kalasuwan, Pruet
name: Zhang, Mian
name: Peruzzo, Alberto
name: Lanyon, Benjamin P.
name: O'Brien, Jeremy L.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: While quantum computers promise significant advantages, the complexity of quantum algorithms remains a major technological obstacle. We have developed and demonstrated an architecture-independent technique that simplifies adding control qubits to arbitrary quantum operations-a requirement in many quantum algorithms, simulations and metrology. The technique is independent of how the operation is done, does not require knowledge of what the operation is, and largely separates the problems of how to implement a quantum operation in the laboratory and how to add a control. We demonstrate an entanglement-based version in a photonic system, realizing a range of different two-qubit gates with high fidelity.
description: 9 pages, 8 figures
How Much Have You Prepared? A Study on Retirement Planning among Malaysian Civil Servants
Creators: name: Ating, Rashid
Publisher: name: Zenodo
Year: 2023
Subjects: retirement planning, civil servants

description: To quote Catherine Pulsifer, a Canadian writer and poet, “Retirement is a time to enjoy all the things you never had time to do when you worked.”. Her words describe exactly what retirement should be as retirees would have much more Malaysian civil service retirees receive pensions and gratuity from the government upon retirement. They receive a lump sum of money after spending 20, 30 or 40 years serving in retirement years, given the current rising cost of living?
$K$-theoretic wall-crossing formulas and multiple basic hypergeometric series
Creators: name: Ohkawa, Ryo
name: Shiraishi, Jun'ichi
Publisher: name: arXiv
Year: 2024
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: We study $K$-theoretic integrals over famed quiver moduli via wall-crossing phenomena. We study the chainsaw quiver varieties, and consider generating functions defined by two types of $K$-theoretic classes. In particular, we focus on integrals over the handsaw quiver varieties of type $A_{1}$, and get functional equations for each of them. We also give explicit formula for these partition functions. In particular, we obtain geometric interpretation of transformation formulas for multiple basic hypergeometric series including the Kajihara transformation formula, and the one studied by Langer-Schlosser-Warnaar and Hallnäs-Langman-Noumi-Rosengren.
description: corrected Theorem 1.2 for non-symmetric quiver
CA-SBA-599: Archaeological Site Record for CA-SBA-599
Creators: name: Kekich, Jessica
Year: 1995
Subjects: subject: Santa Barbara (County)
valueUri: https://core.tdar.org/browse/geographic-keyword/3486/santa-barbara-county
subject: Vandenberg Air Force Base (VAFB)
valueUri: https://core.tdar.org/browse/geographic-keyword/85469/vandenberg-air-force-base-vafb
subject: Vandenberg Space Force Base (VSFB)
valueUri: https://core.tdar.org/browse/geographic-keyword/85584/vandenberg-space-force-base-vsfb
subject: United States of America (Country)
valueUri: https://core.tdar.org/browse/geographic-keyword/384/united-states-of-america-country
subject: North America (Continent)
valueUri: https://core.tdar.org/browse/geographic-keyword/2890/north-america-continent
subject: California (State / Territory)
valueUri: https://core.tdar.org/browse/geographic-keyword/1484/california-state-territory
subject: Historic
valueUri: https://core.tdar.org/browse/temporal-keyword/5728/historic
subject: Prehistoric
valueUri: https://core.tdar.org/browse/temporal-keyword/53/prehistoric
subject: Historic
valueUri: https://core.tdar.org/browse/culture-keyword/25/historic
subject: CA-SBA-599
valueUri: https://core.tdar.org/browse/site-name/137525/ca-sba-599
subject: Archaeological Feature
valueUri: https://core.tdar.org/browse/site-type/339/archaeological-feature
subject: Artifact Scatter
valueUri: https://core.tdar.org/browse/site-type/340/artifact-scatter
subject: Shell
valueUri: https://core.tdar.org/browse/material-type/14/shell
subject: Pismo Clam (Tivela stultorum)
valueUri: https://core.tdar.org/browse/material-type/817/pismo-clam-tivela-stultorum
subject: Chert flakes
valueUri: https://core.tdar.org/browse/material-type/2898/chert-flakes
subject: sun-colored amethyst glass
valueUri: https://core.tdar.org/browse/material-type/3285/sun-colored-amethyst-glass
subject: Window Glass
valueUri: https://core.tdar.org/browse/material-type/2264/window-glass
subject: White glazed earthenware
valueUri: https://core.tdar.org/browse/material-type/4344/white-glazed-earthenware
subject: Green Glass
valueUri: https://core.tdar.org/browse/material-type/665/green-glass
subject: Ceramic
valueUri: https://core.tdar.org/browse/material-type/1/ceramic
subject: Chipped Stone
valueUri: https://core.tdar.org/browse/material-type/2/chipped-stone
subject: Fauna
valueUri: https://core.tdar.org/browse/material-type/4/fauna
subject: Clear Glass
valueUri: https://core.tdar.org/browse/material-type/484/clear-glass
subject: Glass
valueUri: https://core.tdar.org/browse/material-type/6/glass
subject: Building Materials
valueUri: https://core.tdar.org/browse/material-type/8/building-materials
subject: Metal
valueUri: https://core.tdar.org/browse/material-type/11/metal
subject: Archaeological Overview
valueUri: https://core.tdar.org/browse/investigation-type/1/archaeological-overview
subject: Reconnaissance / Survey
valueUri: https://core.tdar.org/browse/investigation-type/7/reconnaissance-survey

description: This document is the archaeological site record for CA-SBA-599. The record consists of 1 recordation event.
Solar neutrinos, helioseismology and the solar internal dynamics
Creators: name: Turck-Chieze, S.
name: Couvidat, S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Neutrinos are fundamental particles ubiquitous in the Universe. Their properties remain elusive despite more than 50 years of intense research activity. In this review we remind the reader of the noticeable properties of these particles and of the stakes of the solar neutrino puzzle. The Standard Solar Model triggered persistent efforts in fundamental Physics to predict the solar neutrino fluxes, and its constantly evolving predictions have been regularly compared to the detected neutrino signals. Anticipating that this standard model could not reproduce the internal solar dynamics, a SEismic Solar Model was developed which enriched theoretical neutrino flux predictions with in situ observation of acoustic waves propagating in the Sun. This review reminds the historical steps, from the pioneering Homestake detection, the GALLEX- SAGE captures of the first pp neutrinos and emphasizes the importance of the Superkamiokande and SNO detectors to demonstrate that the solar-emitted electronic neutrinos are partially transformed into other neutrino flavors before reaching the Earth. The success of BOREXINO in detecting the 7 Be neutrino signal justifies the building of a new generation of detectors to measure the entire solar neutrino spectrum. A coherent picture emerged from neutrino physics and helioseismology. Today, new paradigms take shape: determining the masses of neutrinos and the research on the Sun is focusing on the dynamical aspects and on signature of dark matter. The third part of the review is dedicated to this prospect. The understanding of the crucial role of both rotation and magnetism in solar physics benefit from SoHO, SDO, and PICARD space observations. For now, the particle and stellar challenges seem decoupled, but this is only a superficial appearance. The development of asteroseismology shows the far-reaching impact of Neutrino and Stellar Astronomy.
description: 60 pages, 12 figures Invited review in press in Report on Progress in Physics
Quantitative measurements of Rhenium-188 for radionuclide therapies
Creators: name: Esquinas Fernández, Pedro Luis
Publisher: name: University of British Columbia
Year: 2017

description: Over the last three decades, Rhenium-188 (¹⁸⁸Re) applications in Nuclear Medicine therapies have gathered a lot of interest thanks to the favorable physical and chemical characteristics of this isotope. In order to optimize ¹⁸⁸Re therapies, the accurate knowledge of the activity distribution within the patient body is required. To this end, the nuclear medicine images must yield accurate quantitative measurements. However, the decay of ¹⁸⁸Re results in a large variety of emissions such as β-particles, γ-particles and Bremsstrahlung, making quantitative measurements of ¹⁸⁸Re activity a very difficult task. The objective of this thesis was to develop a series of methods which would allow us to perform accurate measurements of ¹⁸⁸Re activities in the nuclear medicine department. To address the thesis’ objective, four major studies were carried out: 1) to ensure that measurements of patients administered activities are accurate, a practical method to determine dose-calibrator dial settings using a thyroid-probe was developed; 2) to assess the influence of ¹⁸⁸Re multiple emissions on quantitative imaging, a series of Monte-Carlo simulations of ¹⁸⁸Re single photon emission computed tomography (SPECT) were performed; 3) to assess the image quality and image quantification accuracy of a pre-clinical SPECT camera based on multi-pinhole collimators, a series of experiments using phantoms filled with ¹⁸⁸Re were performed and; 4) to investigate the accuracy of quantitative ¹⁸⁸Re SPECT using a clinical system as well as the accuracy of image-based dosimetry calculations in the context of ¹⁸⁸Re radioembolization, a series of phantom experiments and Monte-Carlo simulations were performed. The proposed thyroid-probe method enabled us to determine dose-calibrator settings for ¹⁸⁸Re which resulted in measurements of activity within 5% of the sample’s true value. The analysis of Monte-Carlo simulations indicated that Bremsstrahlung photons emitted from ¹⁸⁸Re do not really affect image-quantification. The results from phantom experiments showed that accurate quantification of Re-188 activities is possible in pre-clinical and clinical SPECT when images are reconstructed with iterative algorithms and corrections for attenuation, scatter using the triple-energy window method, resolution loss and dead-time. Due to the sub-optimal segmentation methods, dosimetry calculations based on ¹⁸⁸Re images underestimated the true dose by 15-20%, on average.
Systematic Uncertainties in the Spectroscopic Measurements of Neutron-Star Masses and Radii from Thermonuclear X-ray Bursts. I. Apparent Radii
Creators: name: Guver, Tolga
name: Psaltis, Dimitrios
name: Ozel, Feryal
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The masses and radii of low-magnetic field neutron stars can be measured by combining different observable quantities obtained from their X-ray spectra during thermonuclear X-ray bursts. One of these quantities is the apparent radius of each neutron star as inferred from the X-ray flux and spectral temperature measured during the cooling tails of bursts, when the thermonuclear flash is believed to have engulfed the entire star. In this paper, we analyze 13,095 X-ray spectra of 446 X-ray bursts observed from 12 sources in order to assess possible systematic effects in the measurements of the apparent radii of neutron stars. We first show that the vast majority of the observed X-ray spectra are consistent with blackbody functions to within a few percent. We find that most X-ray bursts follow a very well determined correlation between X-ray flux and temperature, which is consistent with the whole neutron-star surface emitting uniformly during the cooling tails. We develop a Bayesian Gaussian mixture algorithm to measure the apparent radii of the neutron stars in these sources, while detecting and excluding a small number of X-ray bursts that show irregular cooling behavior. This algorithm also provides us with a quantitative measure of the systematic uncertainties in the measurements. We find that those errors in the spectroscopic determination of neutron-star radii that are introduced by systematic effects in the cooling tails of X-ray bursts are in the range $\simeq 3-8$%. Such small errors are adequate to distinguish between different equations of state provided that uncertainties in the distance to each source and the absolute calibration of X-ray detectors do not dominate the error budget.
description: accepted for publication in the February 2012 issue of the Astrophysical Journal
Approximation properties and absence of Cartan subalgebra for free Araki-Woods factors
Creators: name: Houdayer, Cyril
name: Ricard, Eric
Publisher: name: arXiv
Year: 2010
Subjects: subject: Operator Algebras (math.OA)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 46L07, 46L10, 46L54

description: We show that all the free Araki-Woods factors $Γ(H_\R, U_t)"$ have the complete metric approximation property. Using Ozawa-Popa's techniques, we then prove that every nonamenable subfactor $\mathcal{N} \subset Γ(H_\R, U_t)"$ which is the range of a normal conditional expectation has no Cartan subalgebra. We finally deduce that the type ${\rm III_1}$ factors constructed by Connes in the '70s can never be isomorphic to any free Araki-Woods factor, which answers a question of Shlyakhtenko and Vaes.
description: 34 pages
Confirmation of the Copernican principle at Gpc radial scale and above from the kinetic Sunyaev Zel'dovich effect power spectrum
Creators: name: Zhang, Pengjie
name: Stebbins, Albert
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The Copernican principle, a cornerstone of modern cosmology, remains largely unproven at Gpc radial scale and above. Here we will show that, violations of this type will inevitably cause a first order anisotropic kinetic Sunyaev Zel'dovich (kSZ) effect. If large scale radial inhomogeneities have amplitude large enough to explain the "dark energy" phenomena, the induced kSZ power spectrum will be much larger than the ACT/SPT upper limit. This single test confirms the Copernican principle and rules out the adiabatic void model as a viable alternative to dark energy.
description: 4 pages, 2 figures. v2: updated with ACT result. v3: updated with SPT result. Expanded discussions. Accepted to PRL
CA-SBA-3296: Archaeological Site Record for CA-SBA-3296
Creators: name: Zalud, Arianna
Year: 1995
Subjects: subject: Santa Barbara (County)
valueUri: https://core.tdar.org/browse/geographic-keyword/3486/santa-barbara-county
subject: Vandenberg Air Force Base (VAFB)
valueUri: https://core.tdar.org/browse/geographic-keyword/85469/vandenberg-air-force-base-vafb
subject: Vandenberg Space Force Base (VSFB)
valueUri: https://core.tdar.org/browse/geographic-keyword/85584/vandenberg-space-force-base-vsfb
subject: United States of America (Country)
valueUri: https://core.tdar.org/browse/geographic-keyword/384/united-states-of-america-country
subject: North America (Continent)
valueUri: https://core.tdar.org/browse/geographic-keyword/2890/north-america-continent
subject: California (State / Territory)
valueUri: https://core.tdar.org/browse/geographic-keyword/1484/california-state-territory
subject: Prehistoric
valueUri: https://core.tdar.org/browse/temporal-keyword/53/prehistoric
subject: CA-SBA-3296
valueUri: https://core.tdar.org/browse/site-name/137479/ca-sba-3296
subject: SA-167
valueUri: https://core.tdar.org/browse/site-name/137480/sa-167
subject: Resource Extraction / Production / Transportation Structure or Features
valueUri: https://core.tdar.org/browse/site-type/272/resource-extraction-production-transportation-structure-or-features
subject: Archaeological Feature
valueUri: https://core.tdar.org/browse/site-type/339/archaeological-feature
subject: Artifact Scatter
valueUri: https://core.tdar.org/browse/site-type/340/artifact-scatter
subject: Quarry
valueUri: https://core.tdar.org/browse/site-type/293/quarry
subject: Monterey Chert
valueUri: https://core.tdar.org/browse/material-type/334/monterey-chert
subject: Chipped Stone
valueUri: https://core.tdar.org/browse/material-type/2/chipped-stone
subject: Biface preform
valueUri: https://core.tdar.org/browse/material-type/4088/biface-preform
subject: Core tool
valueUri: https://core.tdar.org/browse/material-type/2588/core-tool
subject: Lithic Debitage
valueUri: https://core.tdar.org/browse/material-type/2812/lithic-debitage
subject: Archaeological Overview
valueUri: https://core.tdar.org/browse/investigation-type/1/archaeological-overview
subject: Reconnaissance / Survey
valueUri: https://core.tdar.org/browse/investigation-type/7/reconnaissance-survey

description: This document is the archaeological site record for CA-SBA-3296. The record consists of a single recordation event.
CA-SBA-1728: Archaeological Site Record for CA-SBA-1728
Creators: name: Zalud, Arianna
Year: 1983
Subjects: subject: Santa Barbara (County)
valueUri: https://core.tdar.org/browse/geographic-keyword/3486/santa-barbara-county
subject: Vandenberg Air Force Base (VAFB)
valueUri: https://core.tdar.org/browse/geographic-keyword/85469/vandenberg-air-force-base-vafb
subject: Vandenberg Space Force Base (VSFB)
valueUri: https://core.tdar.org/browse/geographic-keyword/85584/vandenberg-space-force-base-vsfb
subject: United States of America (Country)
valueUri: https://core.tdar.org/browse/geographic-keyword/384/united-states-of-america-country
subject: North America (Continent)
valueUri: https://core.tdar.org/browse/geographic-keyword/2890/north-america-continent
subject: California (State / Territory)
valueUri: https://core.tdar.org/browse/geographic-keyword/1484/california-state-territory
subject: Prehistoric
valueUri: https://core.tdar.org/browse/temporal-keyword/53/prehistoric
subject: CA-SBA-1728
valueUri: https://core.tdar.org/browse/site-name/137529/ca-sba-1728
subject: Archaeological Feature
valueUri: https://core.tdar.org/browse/site-type/339/archaeological-feature
subject: Artifact Scatter
valueUri: https://core.tdar.org/browse/site-type/340/artifact-scatter
subject: Shell
valueUri: https://core.tdar.org/browse/material-type/14/shell
subject: Bifaces
valueUri: https://core.tdar.org/browse/material-type/2976/bifaces
subject: Chipped Stone
valueUri: https://core.tdar.org/browse/material-type/2/chipped-stone
subject: Mytilus sp.
valueUri: https://core.tdar.org/browse/material-type/3236/mytilus-sp
subject: Lithic Debitage
valueUri: https://core.tdar.org/browse/material-type/2812/lithic-debitage
subject: Shell Scatter
valueUri: https://core.tdar.org/browse/material-type/3932/shell-scatter
subject: Archaeological Overview
valueUri: https://core.tdar.org/browse/investigation-type/1/archaeological-overview
subject: Reconnaissance / Survey
valueUri: https://core.tdar.org/browse/investigation-type/7/reconnaissance-survey

description: This document is the archaeological site record for CA-SBA-1728. The record consists of 3 recordation events.
Second-Order Resolvability, Intrinsic Randomness, and Fixed-Length Source Coding for Mixed Sources: Information Spectrum Approach
Creators: name: Nomura, Ryo
name: Han, Te Sun
Publisher: name: arXiv
Year: 2011
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences
subject: 94A15

description: The second-order achievable asymptotics in typical random number generation problems such as resolvability, intrinsic randomness, fixed-length source coding are considered. In these problems, several researchers have derived the first-order and the second-order achievability rates for general sources using the information spectrum methods. Although these formulas are general, their computation are quite hard. Hence, an attempt to address explicit computation problems of achievable rates is meaningful. In particular, for i.i.d. sources, the second-order achievable rates have earlier been determined simply by using the asymptotic normality. In this paper, we consider mixed sources of two i.i.d. sources. The mixed source is a typical case of nonergodic sources and whose self-information does not have the asymptotic normality. Nonetheless, we can explicitly compute the second-order achievable rates for these sources on the basis of two-peak asymptotic normality. In addition, extensions of our results to more general mixed sources, such as a mixture of countably infinite i.i.d. sources or Markovian sources, and a continuous mixture of i.i.d. sources, are considered.
description: Revised version; the title was changed, Section 8 and figures were added
Loop quantum gravity: the first twenty five years
Creators: name: Rovelli, Carlo
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: This is a review paper invited by the journal "Classical ad Quantum Gravity" for a "Cluster Issue" on approaches to quantum gravity. I give a synthetic presentation of loop gravity. I spell-out the aims of the theory and compare the results obtained with the initial hopes that motivated the early interest in this research direction. I give my own perspective on the status of the program and attempt of a critical evaluation of its successes and limits.
description: 24 pages, 3 figures
Dynamic relaxation of a liquid cavity under amorphous boundary conditions
Creators: name: Cavagna, Andrea
name: Grigera, Tomas S.
name: Verrocchio, Paolo
Publisher: name: arXiv
Year: 2010
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: The growth of cooperatively rearranging regions was invoked long ago by Adam and Gibbs to explain the slowing down of glass-forming liquids. The lack of knowledge about the nature of the growing order, though, complicates the definition of an appropriate correlation function. One option is the point-to-set correlation function, which measures the spatial span of the influence of amorphous boundary conditions on a confined system. By using a swap Monte Carlo algorithm we measure the equilibration time of a liquid droplet bounded by amorphous boundary conditions in a model glass-former at low temperature, and we show that the cavity relaxation time increases with the size of the droplet, saturating to the bulk value when the droplet outgrows the point-to-set correlation length. This fact supports the idea that the point-to-set correlation length is the natural size of the cooperatively rearranging regions. On the other hand, the cavity relaxation time computed by a standard, nonswap dynamics, has the opposite behavior, showing a very steep increase when the cavity size is decreased. We try to reconcile this difference by discussing the possible hybridization between MCT and activated processes, and by introducing a new kind of amorphous boundary conditions, inspired by the concept of frozen external state as an alternative to the commonly used frozen external configuration.
description: Completely rewritten version. After the first submission it was realized that swap and nonswap dynamics results are qualitatively different. This version reports the results of both dynamics and discusses the different behaviors. 17 pages, 18 figures
Functional characterization of a novel NMDA receptor positive allosteric modulator
Creators: name: Li, Victor
Publisher: name: University of British Columbia
Year: 2017

description: The NMDA receptor is a glutamatergic ionotropic receptor key in mediating neuronal plasticity across virtually all synaptic circuits in the brain. An increasing list of neurological disorders have implicated NMDA receptor hypofunction as an integral part of pathogenesis, necessitating the production of NMDA receptor potentiators as therapeutics. To date, most of these attempts have used increased co-agonism at the glycine binding site of NMDA receptors, but this strategy has been plagued by low specificity and efficacy. Specific allosteric modulation of NMDA receptors is an ideal solution, but until recently, no known drugs were capable of doing so. Building off previous work in our lab that discovered a novel family of compounds capable of modulating NMDA receptor activity through its apical N-terminal domain, we identified and characterized a drug candidate, Npam59, predicted to potentiate both GluN2A- and 2B-containing NMDA receptors. Npam59 was shown to potentiate NMDA currents mediated by both subtypes with EC50 in the low-micromolar range. Npam59 also potentiated d-amphetamine-induced dopamine release in the ventral striatum in an NMDA receptor-dependent manner, but had no observable effect when administered alone. Finally, Npam59 potentiated d-amphetamine-induced hyperlocomotion in Sprague-Dawley rats. These results demonstrate that Npam59 can potentiate the function of NMDA receptors, including both GluN2A- and 2B-containing ones, suggesting its potential as a research tool and drug candidate for further development. Npam59 is the first known NMDA receptor allosteric potentiator with specificity for both GluN2A and GluN2B. Its characterization provides the foundation for therapeutic development and novel insights into the interaction of dopamine-glutamate signaling in the ventral striatum.
Biochemische und strukturbiologische Evaluierung von MKK7-Ligand Wechselwirkungen
Creators: name: Wolle, Patrik
Publisher: name: TU Dortmund
Year: 2021
Subjects: subject: MKK7
subject: JNK
subject: Biochemie
subject: Strukturbiologie
subject: 570
subject: 540
subject: Biochemie
subject: Wirkstoffforschung

description: Mitogen-aktivierte Proteinkinase-Signalwege sind in eukaryotischen Zellen von besonderer Bedeutung, da sie einen zentralen Bestandteil der Weiterleitung von extrazellulären Signalen zum Zellkern darstellen. Beim Menschen sind insgesamt vier MAPK-Signalwege bekannt. In dieser Arbeit wurde im Speziellen der JNK-Signalweg genauer untersucht, der vor allem in Folge von physischen Stimuli wie Hitze, Strahlung und osmotischen Schock sowie Cytokine aktiviert wird. Ebenso ist der JNK-Signalweg in die Entwicklung von Organen während der Embryogenese und in der Entwicklung des Gehirns und des Nervensystems beteiligt. Dies macht den Signalweg zu einem relevanten Ziel für die Wirkstoffforschung. Es konnte bereits gezeigt werden, dass eine direkte Einwirkung auf JNK, zum Beispiel durch selektive JNK-Inhibitoren, viele Nebenwirkungen auslösen kann. Aus diesem Grund sollte in dieser Arbeit die Regulierung eine der beiden Aktivatoren von JNK, die Mitogen aktivierte Protein Kinase Kinase 7 (MKK7), genauer analysiert werden. Hierfür sollte nach Liganden gesucht werden, welche die Aktivität der Kinase innerhalb eines Organismus spezifisch modulieren können, mit dem Ziel, mit Hilfe dieser Substanz Veränderungen in der Funktionsweise des Signalweges, zum Beispiel in den Phosphorylierungsmustern der JNK Substrate, oder in der Morphologie der Zelle, zu detektieren. Dazu wurde zunächst eine Auswahl von verschiedenen biochemischen Assays hinsichtlich ihrer Eignung auf die Charakterisierung von MKK7-Liganden untersucht und mit einem, auf diese Weise identifizierten, geeignetem System eine Bibliothek niedermolekularer Substanzen durchmustert. Die gefundenen Hits wurden sowohl biochemisch als auch mit Hilfe von massenspektrometrischen Messungen validiert. Der potenteste Inhibitor (Verbindung 22) wurde anschließend in Mäusen auf seine pharmakokinetischen Eigenschaften hin untersucht, und in einem Ansatz mit DRG-Zellen auf seine spezifische Wirksamkeit hin untersucht und zeigte auch hier eine hohe Aktivität wie auch Selektivität. Zusätzlich wurde Verbindung 22 wie auch eine Reihe weiterer Inhibitoren im Komplex mit MKK7 kokristallisiert, wodurch der Bindungsmodus dieser Inhibitoren aufgeklärt werden konnte.
Kahler-Einstein metrics emerging from free fermions and statistical mechanics
Creators: name: Berman, Robert J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We propose a statistical mechanical derivation of Kahler-Einstein metrics, i.e. solutions to Einstein's vacuum field equations in Euclidean signature (with a cosmological constant) on a compact Kahler manifold X. The microscopic theory is given by a canonical free fermion gas on X whose one-particle states are pluricanonical holomorphic sections on X (coinciding with higher spin states in the case of a Riemann surface). A heuristic, but hopefully physically illuminating, argument for the convergence in the thermodynamical (large N) limit is given, based on a recent mathematically rigorous result about exponentially small fluctuations of Slater determinants. Relations to effective bosonization and the Yau-Tian-Donaldson program in Kahler geometry are pointed out. The precise mathematical details will be investigated elsewhere.
description: v1: 22 pages v2: 25 pages. The relation to quantum gravity has been further developed by working over the moduli space of all complex structures. Relations to Donaldson's program pointed out. References added
Instance-Level Safety-Aware Fidelity of Synthetic Data and Its Calibration
Creators: name: Cheng, Chih-Hong
name: Stöckel, Paul
name: Zhao, Xingyu
Publisher: name: arXiv
Year: 2024
Subjects: subject: Software Engineering (cs.SE)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Modeling and calibrating the fidelity of synthetic data is paramount in shaping the future of safe and reliable self-driving technology by offering a cost-effective and scalable alternative to real-world data collection. We focus on its role in safety-critical applications, introducing four types of instance-level fidelity that go beyond mere visual input characteristics. The aim is to ensure that applying testing on synthetic data can reveal real-world safety issues, and the absence of safety-critical issues when testing under synthetic data can provide a strong safety guarantee in real-world behavior. We suggest an optimization method to refine the synthetic data generator, reducing fidelity gaps identified by deep learning components. Experiments show this tuning enhances the correlation between safety-critical errors in synthetic and real data.
Axial anomaly and the delta_{LT} puzzle
Creators: name: Kochelev, Nikolai
name: Oh, Yongseok
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The axial anomaly contribution to generalized longitudinal-transverse polarizability $δ_{LT}^{}$ is calculated within Regge approach. It is shown that the contribution from the exchange of the $a_1^{}(1260)$ Regge trajectory is nontrivial and might have the key role to explain the large difference between the predictions of chiral perturbation theory and the experimental data for the neutron $δ_{LT}^{}$. We also present the prediction for the proton $δ_{LT}^{}$, which will be measured at the Thomas Jefferson National Accelerator Facility in near future.
description: 5 pages, 3 figures, REVTeX, to be published in Phys. Rev. D
Deriving a qualitative, continental scale model of species richngi in Caness for ectomycorrhizal funada and the United States of America
Creators: name: Altwasser, Brittany
Publisher: name: University of British Columbia
Year: 2017

description: Understanding the processes that influence richness and diversity patterns across spatial and temporal scales is imperative to ecological research. Our knowledge of how these processes affect ecologically and economically important ectomycorrhizal fungal communities across scales is incomplete. Researchers have begun to explore ectomycorrhizal diversity at larger spatial scales, but have placed little consideration on complex processes and temporal scales. Here, I review the literature on ectomycorrhizal fungal diversity, using the framework of Vellend (2010) in an effort to identify the drivers of ectomycorrhizal fungal diversity, any inconsistencies in the literature, and knowledge gaps. In doing this I am able to hypothesize as to what additional factors might influence ectomycorrhizal diversity. By synthesizing these hypotheses with the predictors identified in the literature, I am able to produce a qualitative predictive model of EMF diversity patterns at the geographic extent of Canada and the USA. This exercise is helpful because it provides a visual representation of all of the factors hypothesized, explicitly or implicitly, to influence the large-scale diversity patterns of EMF. Additionally, this model is used to identify geographic regions that are predicted to harbour high EMF diversity in an effort to increase the sampling efficiency of future projects.
CA-SBA-212: Archaeological Site Record for CA-SBA-212
Creators: name: Kekich, Jessica
Year: 2022
Subjects: subject: Santa Barbara (County)
valueUri: https://core.tdar.org/browse/geographic-keyword/3486/santa-barbara-county
subject: Vandenberg Air Force Base (VAFB)
valueUri: https://core.tdar.org/browse/geographic-keyword/85469/vandenberg-air-force-base-vafb
subject: Vandenberg Space Force Base (VSFB)
valueUri: https://core.tdar.org/browse/geographic-keyword/85584/vandenberg-space-force-base-vsfb
subject: United States of America (Country)
valueUri: https://core.tdar.org/browse/geographic-keyword/384/united-states-of-america-country
subject: North America (Continent)
valueUri: https://core.tdar.org/browse/geographic-keyword/2890/north-america-continent
subject: California (State / Territory)
valueUri: https://core.tdar.org/browse/geographic-keyword/1484/california-state-territory
subject: Late Period
valueUri: https://core.tdar.org/browse/temporal-keyword/5341/late-period
subject: Middle Period
valueUri: https://core.tdar.org/browse/temporal-keyword/5466/middle-period
subject: CA-SBA-212
valueUri: https://core.tdar.org/browse/site-name/93013/ca-sba-212
subject: Archaeological Feature
valueUri: https://core.tdar.org/browse/site-type/339/archaeological-feature
subject: Shell
valueUri: https://core.tdar.org/browse/material-type/14/shell
subject: Ochre
valueUri: https://core.tdar.org/browse/material-type/31/ochre
subject: Asphaltum
valueUri: https://core.tdar.org/browse/material-type/160/asphaltum
subject: Chipped Stone
valueUri: https://core.tdar.org/browse/material-type/2/chipped-stone
subject: Dating Sample
valueUri: https://core.tdar.org/browse/material-type/3/dating-sample
subject: Fauna
valueUri: https://core.tdar.org/browse/material-type/4/fauna
subject: Fire Cracked Rock
valueUri: https://core.tdar.org/browse/material-type/5/fire-cracked-rock
subject: Archaeological Overview
valueUri: https://core.tdar.org/browse/investigation-type/1/archaeological-overview
subject: Reconnaissance / Survey
valueUri: https://core.tdar.org/browse/investigation-type/7/reconnaissance-survey

description: The document is the archaeological site record for CA-SBA-212. The record consists of 10 recordation events.