cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Gammapy: A Python package for gamma-ray astronomy
Creators: name: Donath, Axel
name: Terrier, Régis
name: Remy, Quentin
name: Sinha, Atreyee
name: Nigro, Cosimo
name: Pintore, Fabio
name: Khélifi, Bruno
name: Olivera-Nieto, Laura
name: Ruiz, Jose Enrique
name: Brügge, Kai
name: Linhoff, Maximilian
name: Contreras, Jose Luis
name: Acero, Fabio
name: Aguasca-Cabot, Arnau
name: Berge, David
name: Bhattacharjee, Pooja
name: Buchner, Johannes
name: Boisson, Catherine
name: Fidalgo, David Carreto
name: Chen, Andrew
name: de Lavergne, Mathieu de Bony
name: Cardoso, José Vinícius de Miranda
name: Deil, Christoph
name: Füßling, Matthias
name: Funk, Stefan
name: Giunti, Luca
name: Hinton, Jim
name: Jouvin, Léa
name: King, Johannes
name: Lefaucheur, Julien
name: Lemoine-Goumard, Marianne
name: Lenain, Jean-Philippe
name: López-Coto, Rubén
name: Mohrmann, Lars
name: Morcuende, Daniel
name: Panny, Sebastian
name: Regeard, Maxime
name: Saha, Lab
name: Siejkowski, Hubert
name: Siemiginowska, Aneta
name: Sipőcz, Brigitta M.
name: Unbehaun, Tim
name: van Eldik, Christopher
name: Vuillaume, Thomas
name: Zanin, Roberta
Publisher: name: arXiv
Year: 2023
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In this article, we present Gammapy, an open-source Python package for the analysis of astronomical $γ$-ray data, and illustrate the functionalities of its first long-term-support release, version 1.0. Built on the modern Python scientific ecosystem, Gammapy provides a uniform platform for reducing and modeling data from different $γ$-ray instruments for many analysis scenarios. Gammapy complies with several well-established data conventions in high-energy astrophysics, providing serialized data products that are interoperable with other software packages. Starting from event lists and instrument response functions, Gammapy provides functionalities to reduce these data by binning them in energy and sky coordinates. Several techniques for background estimation are implemented in the package to handle the residual hadronic background affecting $γ$-ray instruments. After the data are binned, the flux and morphology of one or more $γ$-ray sources can be estimated using Poisson maximum likelihood fitting and assuming a variety of spectral, temporal, and spatial models. Estimation of flux points, likelihood profiles, and light curves is also supported. After describing the structure of the package, we show, using publicly available $γ$-ray data, the capabilities of Gammapy in multiple traditional and novel $γ$-ray analysis scenarios, such as spectral and spectro-morphological modeling and estimations of a spectral energy distribution and a light curve. Its flexibility and power are displayed in a final multi-instrument example, where datasets from different instruments, at different stages of data reduction, are simultaneously fitted with an astrophysical flux model.
description: 26 pages, 16 figures
Historic American Buildings Survey Draft, Building 102 Artillery Post Officer's Quarters, Fort Sam Houston, Texas
Creators: name: Fort Sam Houston
Year: 1980
Subjects: subject: JBSA-Sam Houston
valueUri: https://core.tdar.org/browse/geographic-keyword/82532/jbsa-sam-houston
subject: San Antonio
valueUri: https://core.tdar.org/browse/geographic-keyword/4149/san-antonio
subject: Bexar (County)
valueUri: https://core.tdar.org/browse/geographic-keyword/4150/bexar-county
subject: Texas
valueUri: https://core.tdar.org/browse/geographic-keyword/6923/texas
subject: Historic
valueUri: https://core.tdar.org/browse/temporal-keyword/5728/historic
subject: Historic
valueUri: https://core.tdar.org/browse/culture-keyword/25/historic
subject: Governmental Structure
valueUri: https://core.tdar.org/browse/site-type/318/governmental-structure
subject: Domestic Structures
valueUri: https://core.tdar.org/browse/site-type/256/domestic-structures
subject: Historic Governmental Structure
valueUri: https://core.tdar.org/browse/site-type/320/historic-governmental-structure
subject: Military Structure
valueUri: https://core.tdar.org/browse/site-type/322/military-structure
subject: House
valueUri: https://core.tdar.org/browse/site-type/259/house
subject: Non-Domestic Structures
valueUri: https://core.tdar.org/browse/site-type/309/non-domestic-structures
subject: Church / Religious Structure
valueUri: https://core.tdar.org/browse/site-type/311/church-religious-structure
subject: Historic Church / Religious Structure
valueUri: https://core.tdar.org/browse/site-type/313/historic-church-religious-structure
subject: Domestic Structure or Architectural Complex
valueUri: https://core.tdar.org/browse/site-type/251/domestic-structure-or-architectural-complex
subject: Officer Quarters
valueUri: https://core.tdar.org/browse/other-keyword/112246/officer-quarters
subject: Fort Sam Houston
valueUri: https://core.tdar.org/browse/other-keyword/42858/fort-sam-houston
subject: Building 117
valueUri: https://core.tdar.org/browse/other-keyword/146236/building-117
subject: Architectural
valueUri: https://core.tdar.org/browse/other-keyword/30700/architectural
subject: Architectural Documentation
valueUri: https://core.tdar.org/browse/investigation-type/16/architectural-documentation
subject: Historic Background Research
valueUri: https://core.tdar.org/browse/investigation-type/18/historic-background-research
subject: Heritage Management
valueUri: https://core.tdar.org/browse/investigation-type/24/heritage-management

description: A handwritten draft, with accompanying photographs, for the Historic American Buildings Survey for Building 102 at Fort Sam Houston, Texas. Building 102 is presently used as Officers' Quarters.
Brownian Motion of Arbitrarily Shaped Particles in Two-Dimensions
Creators: name: Chakrabarty, Ayan
name: Konya, Andrew
name: Wang, Feng
name: Selinger, Jonathan V.
name: Sun, Kai
name: Wei, Qi-Huo
Publisher: name: arXiv
Year: 2014
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Here we implement microfabricated boomerang particles with unequal arm lengths as a model for non-symmetry particles and study their Brownian motion in a quasi-two dimensional geometry by using high precision single particle motion tracking. We show that due to the coupling between translation and rotation, the mean squared displacements of a single asymmetric boomerang particle exhibit a non-linear crossover from short time faster to long time slower diffusion, and the mean displacements for fixed initial orientation are non-zero and saturate out at long time. The measured anisotropic diffusion coefficients versus the tracking point position indicate that there exists one unique point, i.e. the center of hydrodynamic stress (CoH), at which all coupled diffusion coefficients vanish. This implies that in contrast to motion in 3D where the CoH only exists for high symmetry particles, the CoH always exists for Brownian motion in 2D. We develop an analytical model based on Langevin theory to explain the experimental results and show that among the 6 anisotropic diffusion coefficients only 5 are independent because the translation-translation coupling originates from the translation-rotation coupling. Finally we classify the behavior of 2D Brownian motion of arbitrarily shaped particles into four groups based on the particle shape symmetry group.
Synthesis of SnTe Nanoplates with {100} and {111} Surfaces
Creators: name: Shen, Jie
name: Jung, Yeonwoong
name: Disa, Ankit S.
name: Walker, Fred J.
name: Ahn, Charles H.
name: Cha, Judy J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: SnTe is a topological crystalline insulator that possesses spin-polarized, Dirac-dispersive surface states protected by crystal symmetry. Multiple surface states exist on the {100}, {110}, and {111} surfaces of SnTe, with the band structure of surface states depending on the mirror symmetry of a particular surface. Thus, to access surface states selectively, it is critical to control the morphology of SnTe such that only desired crystallographic surfaces are present. Here, we grow SnTe nanostructures using vapor-liquid-solid and vapor-solid growth mechanisms. Previously, SnTe nanowires and nanocrystals have been grown.1-4 In this report, we demonstrate synthesis of SnTe nanoplates with lateral dimensions spanning tens of microns and thicknesses of a hundred nanometers. The top and bottom surfaces are either (100) or (111), maximizing topological surface states on these surfaces. Magnetotransport on these SnTe nanoplates shows high bulk carrier density, consistent with bulk SnTe crystals arising due to defects such as Sn vacancies. In addition, we observe a structural phase transition in these nanoplates from the high temperature rock salt to low temperature rhombohedral structure. For nanoplates with very high carrier density, we observe a slight upturn in resistance at low temperatures, indicating electron-electron interactions.
description: Nano Lett., Article ASAP,2014
Defect wormholes are defective
Creators: name: Baines, Joshua
name: Gaur, Rudeep
name: Visser, Matt
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The various "defect wormholes" developed by Klinkhamer have recently attracted considerable attention -- especially in view of the fact that the simplest example, the so-called "vacuum defect wormhole", was claimed to be an everywhere-vacuum everywhere-Ricci-flat exact solution to the Einstein equations. This claim has been conclusively refuted by Feng, and in the current article we take a deeper look at exactly what goes wrong. The central issue is this: Although Klinkhamer's specific representation of the metric $g_{ab}$ is smooth ($C^\infty$) his inverse metric $g^{ab}$ is not even everywhere continuous ($C^0$), being undefined at the wormhole throat. This situation implies that one should very carefully investigate curvature tensors at the throat using the Israel--Lanczos--Sen thin-shell formalism. Doing so reveals the presence of a delta-function energy-condition-violating thin shell of matter at the wormhole throat. The "defect wormholes" are thus revealed to be quite ordinary "cut-and-paste" thin-shell wormholes, but represented in a coordinate system which is unfortunately pathological at exactly the same place that all the interesting physics occurs. To help clarify the situation, we shall focus on the behaviour of suitable coordinate invariants -- the Ricci scalar, the eigenvalues of the mixed $R^a{}_b$ Ricci tensor, and the eigenvalues of the mixed $R^{ab}{}_{cd}$ Riemann tensor.
description: V1: 17 pages; 41 references; V2: Now 19 pages, 62 references. Some discussion added regarding the coordinate invariant eigenvalues of the mixed Ricci and Riemann tensors
Kitchen and Mess Hall Building 29, Blueprint, Camp Bullis, Texas
Creators: name: Brin, Adam
Publisher: name: Works Progress Administration
Year: 1939
Subjects: subject: Camp Bullis
valueUri: https://core.tdar.org/browse/geographic-keyword/82533/camp-bullis
subject: Texas
valueUri: https://core.tdar.org/browse/geographic-keyword/6923/texas
subject: Historic
valueUri: https://core.tdar.org/browse/culture-keyword/25/historic
subject: Military Structure
valueUri: https://core.tdar.org/browse/site-type/322/military-structure
subject: Building 29
valueUri: https://core.tdar.org/browse/other-keyword/146161/building-29
subject: Architectural Documentation
valueUri: https://core.tdar.org/browse/investigation-type/16/architectural-documentation
subject: Heritage Management
valueUri: https://core.tdar.org/browse/investigation-type/24/heritage-management

description: This set of drawings from August 16th, 1939 document the floor plans of the kitchen and mess hall at Camp Bullis, Texas, building 29. The blueprint also includes a schedule of openings and an electrical legend. The sponsor for this blueprint is the Office of the Post Quartermaster at Fort Sam Houston, Texas under the supervision of Arthur S. Graham. The blueprint was originally drawn by “H.R.J”, checked by “U.E.R.” and reviewed by J.B. Clearwater. The data measurements used to draw the blueprint were taken by “A.A.B.”
FAUST X: Formaldehyde in the Protobinary System [BHB2007] 11: Small Scale Deuteration
Creators: name: Evans, Lucy
name: Vastel, Charlotte
name: Fontani, Francisco
name: Pineda, Jaime
name: Jiménez-Serra, Izaskun
name: Alves, Felipe
name: Sakai, Takeshi
name: Bouvier, Mathilde
name: Caselli, Paola
name: Ceccarelli, Cecilia
name: Chandler, Claire
name: Svoboda, Brian
name: Maud, Luke
name: Codella, Claudio
name: Sakai, Nami
name: Gal, Romane Le
name: López-Sepulcre, Ana
name: Moellenbrock, George
name: Yamamoto, Satoshi
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Context. Deuterium in H-bearing species is enhanced during the early stages of star formation, however, only a small number of high spatial resolution deuteration studies exist towards protostellar objects, leaving the small-scale structures unrevealed and understudied. Aims. We aim to constrain the deuterium fractionation ratios in a Class 0/I protostellar object in formaldehyde (H2CO), which has abundant deuterated isotopologues in this environment. Methods. We observed the Class 0/I protobinary system [BHB2007] 11, whose emission components are embedded in circumstellar disks that have radii of 2-3 au, using ALMA within the context of the Large Program FAUST. The system is surrounded by a complex filamentary structure connecting to the larger circumbinary disk. In this work we present the first study of formaldehyde D-fractionation towards this source with detections of H2CO 3(0,3)-2(0,2), combined with HDCO 4(2,2)-3(2,1), HDCO 4(1,4)-3(1,3) and D2CO 4(0,4)-3(0,3). These observations enable multiple velocity components associated with the methanol hotspots also uncovered by FAUST data, as well as the external envelope, to be resolved. In addition, based on the kinematics seen in the observations of the H2CO emission, we propose the presence of a second large scale outflow. Results. HDCO and D2CO are only found in the central regions of the core while H2CO is found more ubiquitously. From radiative transfer modelling, the column densities ranges found for H2CO, HDCO and D2CO are (3-8)x10$^{14}$ cm$^{-2}$, (0.8-2.9)x10$^{13}$ cm$^{-2}$ and (2.6-4.3)x10$^{12}$ cm$^{-2}$, respectively, yielding an average D/H ratio of 0.01-0.04. Following the results of kinematic modelling, the second large scale feature is inconsistent with a streamer-like nature and we thus tentatively conclude that the feature is an asymmetric molecular outflow launched by a wide-angle disk wind.
description: 17 pages, 15 figures
OAHP Inventory, Buildings 2013, 2014, 2015, 2016, 2017, Fort Sam Houston, Texas
Creators: name: Walter, Chelsea
Publisher: name: Office of Archeology and Historic Preservation, Department of the Interior
Year: 1978
Subjects: subject: Fort Sam Houston
valueUri: https://core.tdar.org/browse/geographic-keyword/83681/fort-sam-houston
subject: San Antonio
valueUri: https://core.tdar.org/browse/geographic-keyword/4149/san-antonio
subject: Bexar (County)
valueUri: https://core.tdar.org/browse/geographic-keyword/4150/bexar-county
subject: Texas
valueUri: https://core.tdar.org/browse/geographic-keyword/6923/texas
subject: Historic
valueUri: https://core.tdar.org/browse/culture-keyword/25/historic
subject: Governmental Structure
valueUri: https://core.tdar.org/browse/site-type/318/governmental-structure
subject: Historic Governmental Structure
valueUri: https://core.tdar.org/browse/site-type/320/historic-governmental-structure
subject: Non-Domestic Structures
valueUri: https://core.tdar.org/browse/site-type/309/non-domestic-structures
subject: Building 2013
valueUri: https://core.tdar.org/browse/other-keyword/146511/building-2013
subject: Hospital Classrooms
valueUri: https://core.tdar.org/browse/other-keyword/159023/hospital-classrooms
subject: Building 2014
valueUri: https://core.tdar.org/browse/other-keyword/146512/building-2014
subject: Hospital Wards
valueUri: https://core.tdar.org/browse/other-keyword/159021/hospital-wards
subject: Hospital Offices
valueUri: https://core.tdar.org/browse/other-keyword/159022/hospital-offices
subject: Building 2017
valueUri: https://core.tdar.org/browse/other-keyword/146515/building-2017
subject: OAHP
valueUri: https://core.tdar.org/browse/other-keyword/138292/oahp
subject: Building 2015
valueUri: https://core.tdar.org/browse/other-keyword/146513/building-2015
subject: Hospital
valueUri: https://core.tdar.org/browse/other-keyword/134162/hospital
subject: Building 2016
valueUri: https://core.tdar.org/browse/other-keyword/146514/building-2016
subject: Architectural Documentation
valueUri: https://core.tdar.org/browse/investigation-type/16/architectural-documentation
subject: Historic Background Research
valueUri: https://core.tdar.org/browse/investigation-type/18/historic-background-research
subject: Architectural Survey
valueUri: https://core.tdar.org/browse/investigation-type/2/architectural-survey
subject: Heritage Management
valueUri: https://core.tdar.org/browse/investigation-type/24/heritage-management

description: An inventory form by the Office of Archaeology and Historic Preservation for Buildings 2013, 2014, 2015, 2016, and 2017 at Fort Sam Houston, Texas. The structures were built in 1919 as hospital wards and are now used as hospital offices and classrooms
Tailoring Nanoparticles and Quantum Dots for Practical Application
Creators: Milburn, Leanne A
Publisher: name: University of Alberta Library
Year: 2022

Throughout this thesis, methods for tailoring nanoparticles are broadly discussed and demonstrated experimentally. The main objective of this work was to help bridge the gap between fundamental materials science and global concerns by contributing to the development of functional nanomaterial systems. First, water-soluble silicon quantum dots were prepared and tested for their ability to detect nitroaromatic compounds in combination with a complementary fluorescent protein to improve the sensitivity of detection. A method for differentiating various nitroaromatic compounds was then targeted because nitro-based explosives and nerve agents both quench silicon quantum dot photoluminescence. This was achieved by introducing a second sensor consisting of a colourimetric enzymatic assay. In combination, the silicon quantum dot and enzymatic sensors yielded the intended outcome of detecting nitroaromatic compounds and providing a diagnosis of their inherent hazard class. Another study described within this thesis involved the preparation of water-soluble carbon nanodots surface-functionalized with redox-active molecules to yield a material that may find application in redox flow batteries. In addition to showing a robust electrochemical response, these amorphous carbon nanodots also display photoluminescence that could prove useful in tracking their movement within the battery.
Galaxy And Mass Assembly: Deconstructing Bimodality - I. Red ones and blue ones
Creators: name: Taylor, Edward N.
name: Hopkins, Andrew M.
name: Baldry, Ivan K.
name: Bland-Hawthorn, Joss
name: Brown, Michael J. I.
name: Colless, Matthew
name: Driver, Simon
name: Norberg, Peder
name: Robotham, Aaron S. G.
name: Alpaslan, Mehmet
name: Brough, Sarah
name: Cluver, Michelle E.
name: Gunawhardhana, Madusha
name: Kelvin, Lee S.
name: Liske, Jochen
name: Conselice, Christopher J.
name: Croom, Scott
name: Foster, Caroline
name: Jarrett, Thomas H.
name: Lopez, Maritza Lara
name: Loveday, Jon
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We measure the mass functions for generically red and blue galaxies, using a z < 0.12 sample of log M* > 8.7 field galaxies from the Galaxy And Mass Assembly (GAMA) survey. Our motivation is that, as we show, the dominant uncertainty in existing measurements stems from how 'red' and 'blue' galaxies have been selected/defined. Accordingly, we model our data as two naturally overlapping populations, each with their own mass function and colour-mass relation, which enables us characterise the two populations without having to specify a priori which galaxies are 'red' and 'blue'. Our results then provide the means to derive objective operational definitions for the terms 'red' and 'blue', which are based on the phenomenology of the colour-mass diagrams. Informed by this descriptive modelling, we show that: 1.) after accounting for dust, the stellar colours of 'blue' galaxies do not depend strongly on mass; 2.) the tight, flat 'dead sequence' does not extend much below log M* ~ 10.5; instead, 3.) the stellar colours of 'red' galaxies vary rather strongly with mass, such that lower mass 'red' galaxies have bluer stellar populations; 4.) below log M* ~ 9.3, the 'red' population dissolves into obscurity, and it becomes problematic to talk about two distinct populations; as a consequence, 5.) it is hard to meaningfully constrain the shape, including the possibility of an upturn, of the 'red' galaxy mass function below log M* ~ 9. Points 1-4 provide meaningful targets for models of galaxy formation and evolution to aim for.
description: Accepted by MNRAS - 16 figures, 42 pages including 1 appendix - all results will be made available online via MNRAS, source code can be provided on request
Neural network-based emulation of interstellar medium models
Creators: name: Palud, Pierre
name: Einig, Lucas
name: Petit, Franck Le
name: Bron, Emeric
name: Chainais, Pierre
name: Chanussot, Jocelyn
name: Pety, Jérôme
name: Thouvenin, Pierre-Antoine
name: Languignon, David
name: Bešlić, Ivana
name: Santa-Maria, Miriam G.
name: Orkisz, Jan H.
name: Ségal, Léontine E.
name: Zakardjian, Antoine
name: Bardeau, Sébastien
name: Gerin, Maryvonne
name: Goicoechea, Javier R.
name: Gratier, Pierre
name: Guzman, Viviana V.
name: Hughes, Annie
name: Levrier, François
name: Liszt, Harvey S.
name: Bourlot, Jacques Le
name: Roueff, Antoine
name: Sievers, Albrecht
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Applications (stat.AP)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: The interpretation of observations of atomic and molecular tracers in the galactic and extragalactic interstellar medium (ISM) requires comparisons with state-of-the-art astrophysical models to infer some physical conditions. Usually, ISM models are too time-consuming for such inference procedures, as they call for numerous model evaluations. As a result, they are often replaced by an interpolation of a grid of precomputed models. We propose a new general method to derive faster, lighter, and more accurate approximations of the model from a grid of precomputed models. These emulators are defined with artificial neural networks (ANNs) designed and trained to address the specificities inherent in ISM models. Indeed, such models often predict many observables (e.g., line intensities) from just a few input physical parameters and can yield outliers due to numerical instabilities or physical bistabilities. We propose applying five strategies to address these characteristics: 1) an outlier removal procedure; 2) a clustering method that yields homogeneous subsets of lines that are simpler to predict with different ANNs; 3) a dimension reduction technique that enables to adequately size the network architecture; 4) the physical inputs are augmented with a polynomial transform to ease the learning of nonlinearities; and 5) a dense architecture to ease the learning of simple relations. We compare the proposed ANNs with standard classes of interpolation methods to emulate the Meudon PDR code, a representative ISM numerical model. Combinations of the proposed strategies outperform all interpolation methods by a factor of 2 on the average error, reaching 4.5% on the Meudon PDR code. These networks are also 1000 times faster than accurate interpolation methods and require ten to forty times less memory. This work will enable efficient inferences on wide-field multiline observations of the ISM.
Optical Rogue Waves in integrable turbulence
Creators: name: Walczak, Pierre
name: Randoux, Stéphane
name: Suret, Pierre
Publisher: name: arXiv
Year: 2014
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We report optical fiber experiments allowing to investigate integrable turbulence in the focusing regime of the one dimensional nonlinear Schrödinger equation (1D-NLSE). Our experiments are very similar in their principle to water tank experiments with random initial conditions (see M. Onorato {\it et al.} Phys. Rev. E {\bf 70} 067302 (2004)). Using an original optical sampling setup, we measure precisely the probability density function (PDF) of optical power of partially coherent waves rapidly fluctuating with time. The PDF is found to evolve from the normal law to a strong heavy-tailed distribution, thus revealing the formation of rogue waves in integrable turbulence. Numerical simulations of 1D-NLSE with stochastic initial conditions reproduce quantitatively the experiments. Our investigations suggest that the statistical features experimentally observed rely on the stochastic generation of coherent analytic solutions of 1D-NLSE such as Peregrine solitons.
description: 5 pages, 3 figures
Letter from Scott Shepherd to Joseph Logan, Building 235 Self Help, Randolph Air Force Base, Texas
Creators: name: Shepherd, Scott B.
Publisher: name: VS Office
Year: 1992
Subjects: subject: San Antonio
valueUri: https://core.tdar.org/browse/geographic-keyword/4149/san-antonio
subject: Bexar (County)
valueUri: https://core.tdar.org/browse/geographic-keyword/4150/bexar-county
subject: Texas
valueUri: https://core.tdar.org/browse/geographic-keyword/6923/texas
subject: Randolph Air Force Base
valueUri: https://core.tdar.org/browse/geographic-keyword/78971/randolph-air-force-base
subject: Historic
valueUri: https://core.tdar.org/browse/culture-keyword/25/historic
subject: Governmental Structure
valueUri: https://core.tdar.org/browse/site-type/318/governmental-structure
subject: Historic Governmental Structure
valueUri: https://core.tdar.org/browse/site-type/320/historic-governmental-structure
subject: Non-Domestic Structures
valueUri: https://core.tdar.org/browse/site-type/309/non-domestic-structures
subject: Self Help
valueUri: https://core.tdar.org/browse/other-keyword/158929/self-help
subject: Building 235
valueUri: https://core.tdar.org/browse/other-keyword/158252/building-235
subject: Architectural Documentation
valueUri: https://core.tdar.org/browse/investigation-type/16/architectural-documentation
subject: Heritage Management
valueUri: https://core.tdar.org/browse/investigation-type/24/heritage-management

description: Discussion of a small project at Building 235 concerning the Self Help, Randolph Air Force Base, Texas. A need for better coordination and communication is also addressed. A group of correspondence concerning small projects at Randolph Air Force Base, including the Self Help in Building 235. Most of the emails address the need for coordination and organization in orchestrating these smaller projects. Also mentioned is a need for a survey and a Programmatic Agreement with the state on coordination guidelines, etc.
Rotation-Dependent Catastrophic Disruption of Gravitational Aggregates
Creators: name: Ballouz, Ronald-Louis
name: Richardson, Derek C.
name: Michel, Patrick
name: Schwartz, Stephen R.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We carry out a systematic exploration of the effect of pre-impact rotation on the outcomes of low-speed collisions between planetesimals modeled as gravitational aggregates. We use pkdgrav, a cosmology code adapted to collisional problems and recently enhanced with a new soft-sphere collision algorithm that includes more realistic contact forces. A rotating body has lower effective surface gravity than a non-rotating one and therefore might suffer more mass loss as the result of a collision. What is less well understood, however, is whether rotation systematically increases mass loss on average regardless of the impact trajectory. This has important implications for the efficiency of planet formation via planetesimal growth, and also more generally for the determination of the impact energy threshold for catastrophic disruption (leading to the largest remnant retaining 50% of the original mass), as this has generally only been evaluated for non-spinning bodies. We find that for most collision scenarios, rotation lowers the threshold energy for catastrophic dispersal. For head-on collisions, we develop a semi-analytic description of the change in the threshold description as a function of the target's pre-impact rotation rate, and find that these results are consistent with the "universal law" of catastrophic disruption developed by Leinhardt & Stewart. Using this approach, we introduce re-scaled catastrophic disruption variables that take into account the interacting mass fraction of the target and the projectile in order to translate oblique impacts into equivalent head-on collisions.
description: 13 pages, 11 figures, 2 tables, Accepted for publication in Astrophysical Journal
Shell-gap reduced level densities in $^{89,90}$Y
Creators: name: Guttormsen, M.
name: Larsen, A. C.
name: Garrote, F. L. Bello
name: Byun, Y.
name: Eriksen, T. K.
name: Giacoppo, F.
name: Görgen, A.
name: Hagen, T. W.
name: Klintefjord, M.
name: Nyhus, H. T.
name: Renstrøm, T.
name: Rose, S. J.
name: Sahin, E.
name: Siem, S.
name: Tornyi, T.
name: Tveten, G. M.
name: Voinov, A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Particle-$γ$ coincidences from the $^{89}$Y($p,p' γ$)$^{89}$Y and $^{89}$Y($d,p γ$)$^{90}$Y reactions were utilized to obtain $γ$-ray spectra as function of excitation energy. The Oslo method was used to extract the level density from the particle-$γ$ coincidence matrices. The impact of the $N=50$ shell closure on the level densities is discussed within the framework of a combinatorial quasi-particle model.
description: 9 pages, 9 figures
Diffractive production of mesons
Creators: name: Schicker, R.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The interest in the study of diffractive meson production is discussed. The description of diffraction within Regge phenomenology is presented, and the QCD-based understanding of diffractive processes is given. Central production is reviewed, and the corresponding main results from the COMPASS experiment and from the experiments at the ISR, RHIC, TEVATRON and LHC collider are summarised.
description: 6 pages, 3 figures, to appear in Proceedings Meson2014 conference, Cracow, may 29 - june 3, 2014
Self-consistent dust and non-LTE line radiative transfer with SKIRT
Creators: name: Matsumoto, Kosei
name: Camps, Peter
name: Baes, Maarten
name: De Ceuster, Frederik
name: Wada, Keiichi
name: Nakagawa, Takao
name: Nagamine, Kentaro
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We introduce Monte Carlo-based non-LTE line radiative transfer calculations in the 3D dust radiative transfer code SKIRT, which was originally set up as a dust radiative transfer code. By doing so, we develop a generic and powerful 3D radiative transfer code that can self-consistently generate spectra with molecular and atomic lines against the underlying continuum. We test the accuracy of the non-LTE line radiative transfer module in the extended SKIRT code using standard benchmarks. We find excellent agreement between the SKIRT results, the published benchmark results, and results obtained using the ray-tracing non-LTE line radiative transfer code MAGRITTE, which validates our implementation. We apply the extended SKIRT code on a 3D hydrodynamic simulation of a dusty AGN torus model and generate multi-wavelength images with CO rotational-line spectra against the underlying dust continuum. We find that the low-J CO emission traces the geometrically thick molecular torus, whereas the higher-J CO lines originate from the gas with high kinetic temperature located in the innermost regions of the torus. Comparing the calculations with and without dust radiative transfer, we find that higher-J CO lines are slightly attenuated by the surrounding cold dust when seen edge-on. This shows that atomic and molecular lines can experience attenuation, an effect that is particularly important for transitions at mid- and near-infrared wavelengths. Therefore, our self-consistent dust and non-LTE line radiative transfer calculations can help interpret the observational data from Herschel, ALMA, and JWST.
description: 12 pages, 9 figures, Accepted for publication in A&A
Praktische Bearbeitungen Bachscher Kompositionen. - Verhandlungen
Creators: name: Seiffert, Max
Publisher: name: Bach-Jahrbuch
Year: 2018

description: Darauf bezugnehmend: Max Seiffert: Zur Kritik der Gesamtausgabe von Bachs Werken. BJ 1906, S. 79-83
description: Bach-Jahrbuch, Bd. 1 (1904)
Analysis of Upper Airway Functional and Dentofacial Changes during Non-Surgical Maxillary Expansion in Adults
Creators: Habibnia, Nikoo
Publisher: name: University of Alberta Library
Year: 2022

Abstract

Introduction: This analysis is part of an ongoing retrospective secondary pilot study on a randomized clinical trial. The purpose of this research project was to evaluate the effect of none-surgical maxillary expansion techniques on upper airway dimension and function, and skeletal and dental changes, using two different maxillary expanders: Moon and Dresden expanders.

Methods: A sample of thirteen patients were randomly allocated to either group A or group B. Patients in group A (N=5) received orthodontic treatment using an appliance called Dresden expander. Patients in group B (N=8) received orthodontic treatment using the Moon expander. Two sets of records were taken for each patient; before starting treatment (T0) and after maxillary expansion completed (T1).  Records consisted of the following: clinical charting and diagnostic exams, intra-oral and extraoral photos, cone beam computer tomography (CBCT), nasal obstruction symptom evaluation (NOSE) questionnaires, and peak nasal inspiratory flow (PNIF). The changes on the upper airway dimension and function were evaluated using CBCT scans (using Dolphin software), PNIF (objective measurement), and NOSE questionnaire (subjective measure). The skeletal and dental changes were evaluated using various skeletal and dental landmarks in CBCT using Avizo software. For upper airway changes and skeletal and dental changes, one-way repeated measure mixed ANOVA tests and paired sample t-tests were conducted.

Results: For upper airway changes, from T0 to T1, no statistically significant differences were found between the Moon and the Dresden expander groups for nasopharynx volume (NPV), oropharynx volume (OPV), oropharynx minimal cross-sectional area (OPMCA), PNIF with both nostrils (PNIFBN), PNIF with left nostril blocked (PNIFLB), and PNIF with right nostril blocked (PNIFRB), and NOSE questionnaires. Also, both expanders showed to have no significant effect on upper airway dimensions and function. For skeletal and dental changes, Moon expander resulted in buccal displacement of pulp chamber of tooth # 1.6, 2.6, and 2.4 (p0.05).

Conclusion: The effect of microimplant-assisted rapid palatal expansion (MARPE) appliances on upper airway dimension and function in adults is yet to be determined and future randomized controlled clinical trial studies with larger sample size are needed. In terms of skeletal and dental changes, the only statistically significant change was in the Moon expander group in transverse (X) direction for pulp chamber of upper first molars and upper left first premolar. However, such changes may not be clinically significant. No significant differences were found between the two appliance designs in this analysis.
(:unas) unassigned
Creators: name: (:Unkn) Unknown
Publisher: name: Universita' degli Studi di Salerno
Year: 2024

description: Il testo si sofferma su un aspetto non molto noto dell’esperienza e dell’operato di Dante Della Terza: il suo legame con la lingua e la cultura francese, da lui amatissime e costantemente presenti nello spettro dei suoi interessi di studioso.
description: The text dwells on an aspect of Dante Della Terza’s experience and work that is not very well-known: his link with the French language and culture, which he loved and which were constantly present in the spectrum of his interests as a scholar.
Historic Landscape Contexts, Inventories, and Management Plans for Randolph Air Force Base and Maxwell Air Force Base
Creators: name: Tharp, Deborah
name: Tooker, Megan
name: Smith, Adam
Year: 2011
Subjects: subject: Maxwell Air Force Base
valueUri: https://core.tdar.org/browse/geographic-keyword/80894/maxwell-air-force-base
subject: San Antonio
valueUri: https://core.tdar.org/browse/geographic-keyword/4149/san-antonio
subject: Texas
valueUri: https://core.tdar.org/browse/geographic-keyword/6923/texas
subject: Randolph Air Force Base
valueUri: https://core.tdar.org/browse/geographic-keyword/78971/randolph-air-force-base
subject: Collections Research
valueUri: https://core.tdar.org/browse/investigation-type/3/collections-research
subject: Heritage Management
valueUri: https://core.tdar.org/browse/investigation-type/24/heritage-management
subject: Records Search / Inventory Checking
valueUri: https://core.tdar.org/browse/investigation-type/8/records-search-inventory-checking
subject: Research Design / Data Recovery Plan
valueUri: https://core.tdar.org/browse/investigation-type/9/research-design-data-recovery-plan

description: The purpose of this project is to inventory and evaluate the historic landscapes at both Randolph AFB and Maxwell AFB. First, a historic landscape context for each base will be developed. Second, an inventory of all landscapes and landscape features for each base will be completed. Third, these landscapes and features for each base will be evaluated according to the methods established in Guidelines for Identifying and Evaluating Historic Military Landscapes (ERDC-CERL, 2009) and their significance and integrity determined for inclusion on the NRHP. Photographic and historic documentation will be completed for any significant landscapes. Lastly, general management recommendations will be provided to help preserve and/or protect these resources in the future. These management recommendations are intended to help each base preserve the landscape character in historically significant areas as well as provide a list of appropriate and/or sustainable regional plant material. Recommendations will include a large scale street tree planting plan historic districts highlighting large open areas such as parade fields and parking lots as well smaller areas like screening for mechanical yards and equipment. Smaller scale planting plans will be completed for administration buildings for which historic documentation exists (for example, Headquarters, chapel, hospital, BOQ, theater, and barracks). In addition, planting plans for each housing style will be completed. These management recommendations will serve as a guide for Cultural Resources and other interested parties.
The light curve of SN 1987A revisited: constraining production masses of radioactive nuclides
Creators: name: Seitenzahl, I. R.
name: Timmes, F. X.
name: Magkotsios, G.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We revisit the evidence for the contribution of the long-lived radioactive nuclides 44Ti, 55Fe, 56Co, 57Co, and 60Co to the UVOIR light curve of SN 1987A. We show that the V-band luminosity constitutes a roughly constant fraction of the bolometric luminosity between 900 and 1900 days, and we obtain an approximate bolometric light curve out to 4334 days by scaling the late time V-band data by a constant factor where no bolometric light curve data is available. Considering the five most relevant decay chains starting at 44Ti, 55Co, 56Ni, 57Ni, and 60Co, we perform a least squares fit to the constructed composite bolometric light curve. For the nickel isotopes, we obtain best fit values of M(56Ni) = (7.1 +- 0.3) x 10^{-2} Msun and M(57Ni) = (4.1 +- 1.8) x 10^{-3} Msun. Our best fit 44Ti mass is M(44Ti) = (0.55 +- 0.17) x 10^{-4} Msun, which is in disagreement with the much higher (3.1 +- 0.8) x 10^{-4} Msun recently derived from INTEGRAL observations. The associated uncertainties far exceed the best fit values for 55Co and 60Co and, as a result, we only give upper limits on the production masses of M(55Co) < 7.2 x 10^{-3} Msun and M(60Co) < 1.7 x 10^{-4} Msun. Furthermore, we find that the leptonic channels in the decay of 57Co (internal conversion and Auger electrons) are a significant contribution and constitute up to 15.5% of the total luminosity. Consideration of the kinetic energy of these electrons is essential in lowering our best fit nickel isotope production ratio to [57Ni/56Ni]=2.5+-1.1, which is still somewhat high but is in agreement with gamma-ray observations and model predictions.
description: 7 pages, 6 pages, 2 tables
Large-area Reflective Infrared Filters for Millimeter/sub-mm Telescopes
Creators: name: Ahmed, Z.
name: Grayson, J. A.
name: Thompson, K. L.
name: Kuo, C. L.
name: Brooks, G.
name: Pothoven, T.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Ground-based millimeter and sub-millimeter telescopes are attempting to image the sky with ever-larger cryogenically-cooled bolometer arrays, but face challenges in mitigating the infrared loading accompanying large apertures. Absorptive infrared filters supported by mechanical coolers scale insufficiently with aperture size. Reflective metal-mesh filters placed behind the telescope window provide a scalable solution in principle, but have been limited by photolithography constraints to diameters under 300 mm. We present laser etching as an alternate technique to photolithography for fabrication of large-area reflective filters, and show results from lab tests of 500 mm-diameter filters. Filters with up to 700 mm diameter can be fabricated using laser etching with existing capability.
description: 6 pages, 5 figures. Presented at the 15th International Workshop on Low Temperature Detectors
Understanding the Radio Emission from $ε$ Eridani
Creators: name: Rodriguez, Luis F.
name: Lizano, Susana
name: Canto, Jorge
name: Gonzalez, Ricardo F.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Some solar-type stars are known to present faint, time-variable radio continuum emission whose nature is not clearly established. We report on Jansky Very Large Array observations of the nearby star $ε$ Eridani at 10.0 and 33.0 GHz. We find that this star has flux density variations on scales down to days, hours and minutes. On 2020 Apr 15 it exhibited a radio pulse at 10.0 GHz with a total duration of about 20 minutes and a peak four times larger than the plateau of 40 $μ$Jy present in that epoch. We were able to model the time behavior of this radio pulse in terms of the radiation from shocks ramming into the stellar wind. Such shocks can be produced by the wind interaction of violently expanding gas heated suddenly by energetic electrons from a stellar flare, similar to the observed solar flares. Because of the large temperature needed in the working surface to produce the observed emission, this has to be non thermal. It could be gyrosynchrotron or synchrotron emission. Unfortunately, the spectral index or polarization measurements from the radio pulse do not have enough signal-to-noise ratio to determine its nature.
description: 7 pages, 4 figures. To appear in Astronomy & Astrophysics
Letter from Allen Benefield to F. Lawrence Oaks, Buildings 671 and 200, Randolph Air Force Base, Texas
Creators: name: Benefield, Allen J.
Publisher: name: 12th Civil Engineer Squadron
Year: 2002
Subjects: subject: San Antonio
valueUri: https://core.tdar.org/browse/geographic-keyword/4149/san-antonio
subject: Texas
valueUri: https://core.tdar.org/browse/geographic-keyword/6923/texas
subject: Randolph Air Force Base
valueUri: https://core.tdar.org/browse/geographic-keyword/78971/randolph-air-force-base
subject: Historic
valueUri: https://core.tdar.org/browse/culture-keyword/25/historic
subject: Governmental Structure
valueUri: https://core.tdar.org/browse/site-type/318/governmental-structure
subject: Historic Governmental Structure
valueUri: https://core.tdar.org/browse/site-type/320/historic-governmental-structure
subject: Building 200
valueUri: https://core.tdar.org/browse/other-keyword/153389/building-200
subject: NRHP
valueUri: https://core.tdar.org/browse/other-keyword/9857/nrhp
subject: Building 671
valueUri: https://core.tdar.org/browse/other-keyword/146452/building-671
subject: National Register of Historic Places
valueUri: https://core.tdar.org/browse/other-keyword/1572/national-register-of-historic-places
subject: Architectural Documentation
valueUri: https://core.tdar.org/browse/investigation-type/16/architectural-documentation
subject: Heritage Management
valueUri: https://core.tdar.org/browse/investigation-type/24/heritage-management

description: This letter identifies and details buildings 200 and 671, specifically the historic background and use of both buildings that leads them to being included on the National Register of Historic Places. This document is part of a collection of memos, notes and original memorandums related to recent undertakings in Buildings 200 and 671, structures at Randolph Air Force Base that are listed on the National Register of Historic Places.
Silence for a Disturbed Yell
Creators: Whittier, Benjamin E
Publisher: name: University of Alberta Library
Year: 2022

The saxophone continues to inspire through its ability to both play an extremely wide array of dynamics and evoke intense emotions. This recital and recording project explores works for saxophone written in the last forty years that best encapsulate the extreme musical and emotional dynamics of the instrument. This document traces how each of the pieces in the recital relate to this concept and gives background information on the composers and premiere performers of the works, providing a context for the listener for each work’s creation. The project takes its title from François Rossé’s engaging work of the same name for baritone saxophone and piano, Silence for a Disturbed Yell. Other works in the program are Wrath, a dramatic work for tenor saxophone and piano by Stacy Garrop, Le Fusain Fuit la Gomme, a mysterious and engaging solo piece for baritone saxophone by Marie-Hélène Fournier, Ali, a quick and powerful alto saxophone solo by Alex Mincek, and Sonata, a monumental contemporary standard for alto saxophone and piano by William Albright. Supplemental material related to this thesis is available at

 https://era.library.ualberta.ca/collections/44558t441
APC speech coding techniques applied to ECG signals
Creators: name: Meneses, Carlos
name: Lourenço, André
name: Martins, Guilherme
name: Silva, Daniel
Publisher: name: ISEL - High Institute of Engineering of Lisbon
Year: 2020

description: This paper describes an ECG signal coding with an adaptive predictive coding scheme using speech techniques like linear predictive coding and long-term prediction.
description: i-ETC : ISEL Academic Journal of Electronics Telecommunications and Computers, Vol 6, No 1 (2020): Volume 6