cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
18 Sco: a solar twin rich in refractory and neutron-capture elements. Implications for chemical tagging
Creators: name: Melendez, J.
name: Ramirez, I.
name: Karakas, A. I.
name: Yong, D.
name: Monroe, T. R.
name: Bedell, M.
name: Bergemann, M.
name: Asplund, M.
name: Maia, M. Tucci
name: Bean, J.
name: Nascimento, J. -D. do
name: Bazot, M.
name: Alves-Brito, A.
name: Freitas, F. C.
name: Castro, M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We study with unprecedented detail the chemical composition and stellar parameters of the solar twin 18 Sco in a strictly differential sense relative to the Sun. Our study is mainly based on high resolution (R ~ 110 000) high S/N (800-1000) VLT UVES spectra, which allow us to achieve a precision of about 0.005 dex in differential abundances. The effective temperature and surface gravity of 18 Sco are Teff = 5823+/-6 K and log g = 4.45+/-0.02 dex, i.e., 18 Sco is 46+/-6 K hotter than the Sun and log g is 0.01+/-0.02 dex higher. Its metallicity is [Fe/H] = 0.054+/-0.005 dex and its microturbulence velocity is +0.02+/-0.01 km/s higher than solar. Our precise stellar parameters and differential isochrone analysis show that 18 Sco has a mass of 1.04+/-0.02M_Sun and that it is ~1.6 Gyr younger than the Sun. We use precise HARPS radial velocities to search for planets, but none were detected. The chemical abundance pattern of 18 Sco displays a clear trend with condensation temperature, showing thus higher abundances of refractories in 18 Sco than in the Sun. Intriguingly, there are enhancements in the neutron-capture elements relative to the Sun. Despite the small element-to-element abundance differences among nearby n-capture elements (~0.02 dex), we successfully reproduce the r-process pattern in the solar system. This is independent evidence for the universality of the r-process. Our results have important implications for chemical tagging in our Galaxy and nucleosynthesis in general.
description: ApJ, in press
Patient-Provider Communication During Orthodontic Consultations
Creators: Pilgrim, Darrell Codey
Publisher: name: University of Alberta Library
Year: 2022

Informed consent, future patient compliance, and patient satisfaction greatly depend on successful patient-provider communication (PPC). Existing research, although limited, suggests that PPC in orthodontics, and dentistry in general, needs to be improved. Research has traditionally emphasized recall of information as an outcome measure, yet this may not reflect the depth and complexity of PPC, including the individual experiences of participants. This research aimed to identify and better understand factors which may be related to PPC in orthodontic consultations. To achieve this objective, two original studies were undertaken. Firstly, a scoping review was conducted to map the depth and breadth of available literature regarding PPC during consultations for elective dental procedures. Secondly, a qualitative study was undertaken to better understand parents’ perspectives of PPC during orthodontic consultations in a university-based orthodontics graduate program. Both studies were informed by well-established methodologies. Thirty-seven articles were included in the scoping review. Nineteen factors related to PPC during elective dental consultations were identified, including patient-related, provider-related, and information delivery factors. Qualitative description guided the qualitative study, as this methodology is suited to providing a rich, straightforward account of individuals’ perspectives. Adult participants were selected with purposeful sampling, having recently undergone an orthodontic consultation with their child at the University of Alberta Orthodontics Graduate Clinic in Edmonton, Alberta, Canada. Data were collected via semi-structured, individual telephone interviews and analyzed using Inductive, manifest thematic analysis. Identified themes suggested that PPC should be inclusive, truthful, understandable, and holistic. Our findings are expected to inform interventions aiming to improve PPC during orthodontic consultations.
Response from Stan Graves to Joseph Logan, Rehabilitation of Hangar 13 and Comments on Hangars 12 and 64, Randolph Air Force Base, Texas
Creators: name: Graves, Stanley O.
Publisher: name: Texas Historical Commission
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: Hangar 13
valueUri: https://core.tdar.org/browse/other-keyword/158749/hangar-13
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: The Texas Historical Commission has reviewed the documentation regarding the Air Force's proposal to renovate the interior, replace original exterior metal doors, and construct a new building entrance addition on Hangar 13 at Randolph Air Force Base, Texas. After receiving a revised scope of work, the Commission has determined that the undertaking will have an adverse effect to the historical buildings. This letter details the Commission's recommendations in order for the project to become a No Adverse Effect undertaking. This letter is part of correspondence and summary documentation on a proposed rehabilitation of Hangar 13, Randolph Air Force Base, Texas. The project includes the renovation of the interior, replace original exterior metal doors, and construct a new building entrance addition.
Collision Avoidance for Autonomous Surface Vessels using Novel Artificial Potential Fields
Creators: name: Jadhav, Aditya Kailas
name: Pandi, Anantha Raj
name: Somayajula, Abhilash
Publisher: name: arXiv
Year: 2023
Subjects: subject: Robotics (cs.RO)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: As the demand for transportation through waterways continues to rise, the number of vessels plying the waters has correspondingly increased. This has resulted in a greater number of accidents and collisions between ships, some of which lead to significant loss of life and financial losses. Research has shown that human error is a major factor responsible for such incidents. The maritime industry is constantly exploring newer approaches to autonomy to mitigate this issue. This study presents the use of novel Artificial Potential Fields (APFs) to perform obstacle and collision avoidance in marine environments. This study highlights the advantage of harmonic functions over traditional functions in modeling potential fields. With a modification, the method is extended to effectively avoid dynamic obstacles while adhering to COLREGs. Improved performance is observed as compared to the traditional potential fields and also against the popular velocity obstacle approach. A comprehensive statistical analysis is also performed through Monte Carlo simulations in different congested environments that emulate real traffic conditions to demonstrate robustness of the approach.
description: 28 pages, 30 figures
The Lévy Map: A two-dimensional nonlinear map characterized by tunable Lévy flights
Creators: name: Mendez-Bermudez, J. A.
name: de Oliveira, Juliano A.
name: Leonel, Edson D.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Once recognizing that point particles moving inside the extended version of the rippled billiard perform Lévy flights characterized by a Lévy-type distribution $P(\ell)\sim \ell^{-(1+α)}$ with $α=1$, we derive a generalized two-dimensional non-linear map $M_α$ able to produce Lévy flights described by $P(\ell)$ with $0
description: 6 pages, 5 figures
DFT: A Theory Full of Holes?
Creators: name: Pribram-Jones, Aurora
name: Gross, David A.
name: Burke, Kieron
Publisher: name: arXiv
Year: 2014
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: This article is a rough, quirky overview of both the history and present state of the art of density functional theory. The field is so huge that no attempt to be comprehensive is made. We focus on the underlying exact theory, the origin of approximations, and the tension between empirical and non-empirical approaches. Many ideas are illustrated on the exchange energy and hole. Features unique to this article include how approximations can be systematically derived in a non-empirical fashion and a survey of warm dense matter.
description: Corrected typo
Existence, Uniqueness and Regularity for Solutions of the Conical Diffraction Problem
Creators: name: Elschner, Johannes
name: Hinder, Rainer
name: Penzel, Frank
name: Schmidt, Gunther
Publisher: name: Weierstrass Institute
Year: 1998
Subjects: subject: Maxwell equations
subject: system of Helmholtz equations
subject: transmission problem
subject: strongly elliptic variational formulation
subject: singularities of solutions
subject: 78A45
subject: 35J50
subject: 35J20
subject: 35B65

description: This paper is devoted to the analysis of two Helmholtz equations in ℝ2 coupled via quasiperiodic transmission conditions on a set of piecewise smooth interfaces. The solution of this system is quasi-periodic in one direction and satisfies outgoing wave conditions with respect to the other direction. It is shown that Maxwell's equations for the diffraction of a time-harmonic oblique incident plane wave by periodic interfaces can be reduced to problems of this kind. The analysis is based on a strongly elliptic variational formulation of the differential problem in a bounded periodic cell involving nonlocal boundary operators. We obtain existence and uniqueness results for solutions corresponding to electromagnetic fields with locally finite energy. Special attention is paid to the regularity and leading asymptotics of solutions near the edges of the interface.
On deterministic and stochastic sliding modes via small diffusion approximation
Creators: name: Milstein, Grigori N.
name: Veretennikov, Alexandre Yu.
Publisher: name: Weierstrass Institute
Year: 1998
Subjects: subject: Differential equations with discontinuous right-hand sides
subject: sliding modes
subject: stochastic differential equations
subject: stochastic averaging principle
subject: stochastic differential equations with small noise
subject: 34A60
subject: 60H10

description: We study solutions of a system of ordinary differential equations with discontinuity of its vector field on a smooth surface via small additive diffusion perturbations. When a diffusion term tends to zero, one obtains limiting sliding modes on the surface with explicit representation for its motion law. Stochastic sliding modes are also established.
Boundary Layer Approximate Approximations and Cubature of Potentials in Domains
Creators: name: Ivanov, Tjavdar
name: Maz´Ya, Vladimir
name: Schmidt, Gunther
Publisher: name: Weierstrass Institute
Year: 1998
Subjects: subject: Volume potentials
subject: semi-analytic cubature formulae
subject: approximate approximations
subject: approximate multi-resolution
subject: 65D32
subject: 65D15
subject: 65N38

description: In this article we present a new approach to the computation of volume potentials over bounded domains, which is based on the quasi-interpolation of the density by smooth, almost locally supported basis functions for which the corresponding volume potentials are known. The quasi-interpolant is a linear combination of the basis function with shifted and scaled arguments and with coefficients explicitly given by the point values of the density. Thus, the approach results in semi-analytic cubature formulae for volume potentials, which prove to be high order approximations of the integrals. It is based on multi-resolution schemes for accurate approximations up to the boundary by applying approximate refinement equations of the basis functions and iterative approximations on finer grids. We obtain asymptotic error estimates for the quasi-interpolation and corresponding cubature formulae and provide some numerical examples.
Gap interpolation by inpainting methods : Application to Ground and Space-based Asteroseismic data
Creators: name: Pires, Sandrine
name: Mathur, Savita
name: Garcia, Rafael A.
name: Ballot, Jérôme
name: Stello, Dennis
name: Sato, Kumiko
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In asteroseismology, the observed time series often suffers from incomplete time coverage due to gaps. The presence of periodic gaps may generate spurious peaks in the power spectrum that limit the analysis of the data. Various methods have been developed to deal with gaps in time series data. However, it is still important to improve these methods to be able to extract all the possible information contained in the data. In this paper, we propose a new approach to handle the problem, the so-called inpainting method. This technique, based on a sparsity prior, enables to judiciously fill-in the gaps in the data, preserving the asteroseismic signal, as far as possible. The impact of the observational window function is reduced and the interpretation of the power spectrum is simplified. This method is applied both on ground and space-based data. It appears that the inpainting technique improves the oscillation modes detection and estimation. Additionally, it can be used to study very long time series of many stars because its computation is very fast. For a time series of 50 days of CoRoT-like data, it allows a speed-up factor of 1000, if compared to methods of the same accuracy.
description: 29 pages, 7 figures, A&A pending final acceptance from editor
Correspondence Packet, Undertakings at Building 156, Randolph Air Force Base, Texas
Creators: name: Walter, Chelsea
Year: 1993
Subjects: subject: Randolph Field Historic Landmark District
valueUri: https://core.tdar.org/browse/geographic-keyword/83364/randolph-field-historic-landmark-district
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: World War II
valueUri: https://core.tdar.org/browse/temporal-keyword/3992/world-war-ii
subject: WWII
valueUri: https://core.tdar.org/browse/temporal-keyword/5196/wwii
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 156
valueUri: https://core.tdar.org/browse/other-keyword/146304/building-156
subject: Temporary Building
valueUri: https://core.tdar.org/browse/other-keyword/158926/temporary-building
subject: World War II
valueUri: https://core.tdar.org/browse/other-keyword/124433/world-war-ii
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: A large packet of correspondence and associated documents concerning a complex proposal of undertakings for World War II temporary buildings located on Randolph Air Force Base, Texas. Many of the documents are drafts and letters from internal circulation within Randolph Air Force Base.
Aluminium-26 production in low- and intermediate-mass binary systems
Creators: name: Osborn, Zara
name: Karakas, Amanda I.
name: Kemp, Alex J.
name: Izzard, Robert G.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Aluminium-26 is a radioactive isotope which can be synthesized within asymptotic giant branch (AGB) stars, primarily through hot bottom burning. Studies exploring $^{26}$Al production within AGB stars typically focus on single-stars; however, observations show that low- and intermediate-mass stars commonly exist in binaries. We use the binary population synthesis code binary_c to explore the impact of binary evolution on $^{26}$Al yields at solar metallicity both within individual AGB stars and a low/intermediate-mass stellar population. We find the key stellar structural condition achieving most $^{26}$Al overproduction is for stars to enter the thermally-pulsing AGB (TP-AGB) phase with small cores relative to their total masses, allowing those stars to spend abnormally long times on the TP-AGB compared to single-stars of identical mass. Our population with a binary fraction of 0.75 has an $^{26}$Al weighted population yield increase of $25\%$ compared to our population of only single-stars. Stellar-models calculated from the Mt Stromlo/Monash Stellar Structure Program, which we use to test our results from binary_c and closely examine the interior structure of the overproducing stars, support our binary_c results only when the stellar envelope gains mass after core-He depletion. Stars which gain mass before core-He depletion still overproduce $^{26}$Al, but to a lesser extent. This introduces some physical uncertainty into our conclusions as $55\%$ of our $^{26}$Al overproducing stars gain envelope mass through stellar wind accretion onto pre-AGB objects. Our work highlights the need to consider binary influence on the production of $^{26}$Al.
description: 20 pages, 17 figures, and 6 tables. This article has been accepted for publication in MNRAS Published by Oxford University Press on behalf of the Royal Astronomical Society
A Comparative Analysis of Nutritional Profiles: A Study on Four Leading Cereal Brands
Creators: name: vinoothna, ramisetti
name: Karanam, Sai Ashish kumar
Publisher: name: Zenodo
Year: 2023

description: This study scrutinizes the nutritional information of four major cereal brands to discern variances in their health profiles. Through meticulous evaluation, discrepancies in calorie count, sugar levels, fiber content, and essential vitamins were evident. This analysis not only provides consumers with a clearer understanding of their breakfast choices but also emphasizes the significance of transparent nutritional labeling in promoting informed dietary decisions.
Self-force of a rigid ideal fluid, and a charged sphere in hyperbolic motion
Creators: name: Steane, Andrew
Publisher: name: arXiv
Year: 2014
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: We present two results in the treatment of self-force of accelerating bodies. If the total force on an extended rigid object is calculated from the change of momentum summed over planes of simultaneity of successive rest frames, then we show that an ideal fluid, moving rigidly, exerts no net force on its boundary. Under this same definition of total force, we find the electromagnetic self-force for a spherical charged shell of proper radius R accelerating with constant proper acceleration g is (2 e^2 g/R)[ 1/12 - \sum_{n=0}^\infinity (g R)^{2n} ((2n-3)(2n-1)(2n+1)^2)^{-1} ].
description: 5 pages
Heat Transport with a Twist
Creators: name: Abraham, Ethan
name: Dinpajooh, Mohammadhasan
name: Climent, Clàudia
name: Nitzan, Abraham
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Despite the desirability of polymers for use in many products due to their flexibility, light weight, and durability, their status as thermal insulators has precluded their use in applications where thermal conductors are required. However, recent results suggest that the thermal conductance of polymers can be enhanced and that their heat transport behaviors may be highly sensitive to nanoscale control. Here we use non-equilibrium molecular dynamics (MD) simulations to study the effect of mechanical twist on the steady-state thermal conductance across multi-stranded polyethylene wires. We find that a highly twisted double-helical polyethylene wire can display a thermal conductance up to three times that of its untwisted form, an effect which can be attributed to a structural transition in the strands of the double helix. We also find that in thicker wires composed of many parallel strands, adding just one twist can increase its thermal conductance by over 30%. However, we find that unlike stretching a polymer wire, which causes a monotonic increase in thermal conductance, the effect of twist is highly non-monotonic, and certain amounts of twist can actually decrease the thermal conductance. Finally, we apply the Continuous Chirality Measure (CCM) in an attempt to explore the correlation between heat conductance and chirality. The CCM is found to correlate with twist as expected, but we attribute the observed heat transport behaviors to structural factors other than chirality.
Mitigation of Cancer Associated Effects Using Combination Therapies
Creators: Luna, Ismat Zerin
Publisher: name: University of Alberta Library
Year: 2022

Cisplatin contributes to the approximately 80% five-year survival rate for childhood cancer patients. Despite its effectiveness, cisplatin causes several toxicities, particularly ototoxicity which manifests as permanent hearing loss. To date, limited success in otoprotection without compromised anticancer effect has been observed in clinical trials. Development of effective therapies for preventing hearing loss is therefore of primary importance. Studies from the lab of Dr. Amit Bhavsar (MMI) identified a significant and biologically plausible association between cisplatin induced ototoxicity (CIO) susceptibility and expression of Toll-like receptor 4 (TLR4), an innate immune receptor protein. It is found that cisplatin treatment induces TLR4 expression and deletion of TLR4 causes decrease in CIO. From these data we identified TLR4 protein as a target to mitigate CIO. Starting with the reference hit TAK-242, we used proven synthetic methods to probe the significance of various structural motifs through selective chemical modification of the TAK-242 scaffold in order to optimize binding to TLR4 as an otoprotection strategy. Robust in vitro cisplatin “ototoxicity” platforms were developed to assess the efficacy of synthesized TLR4 inhibitors in reducing cisplatin “ototoxicity” phenotypes. Promising small molecule candidates were tested in a zebrafish CIO model in vivo. Two of the new TAK-242 based derivatives were shown to have a potent inhibitory effect on CIO in both in vitro and in vivo experiments. We carried out in silico docking studies with the synthesized inhibitors and TLR4 protein to interpret molecular interaction and refine the preferred structural features for effective inhibition.

A separate cancer-related project was focused on developing inhibitors of breast cancer (BrCa) metastasis. The most aggressive form of BrCa is the triple-negative phenotype (TNBC) which does not express estrogen receptors, progesterone receptors and human epidermal growth factor receptors. Treatment of TNBC is very difficult as it is refractory to the present BrCa treatment regimens. This highlights the lack of effective treatment strategies for TNBC and the need for innovative treatment approaches. The in vivo data from Dr. Persad lab (Department of Pediatrics) showed that the herbicide nitrofen efficiently blocks metastatic tumor growth, especially to the liver. However, several structural properties/components of nitrofen raise concerns, including its high lipophilicity and a potential toxophore in the form of a nitroarene group. Therefore, we developed analogues of nitrofen which could allow modulation of polarity. In vitro anti-invasive activity of nitrofen analogues were evaluated which showed three of the nitrofen analogues significantly reduced invasive potential of TNBC cells. Further in vitro studies suggested that these inhibitory activities of nitrofen and its analogues are not due to cytotoxicity, but rather are due to impairment of invasive capacity of the cells.
Magnetic Deflections of Ultra-High Energy Cosmic Rays from Centaurus A
Creators: name: Keivani, Azadeh
name: Farrar, Glennys R.
name: Sutherland, Michael
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present the results of a study that simulates trajectories of ultra-high energy cosmic rays from Centaurus A to Earth, for particle rigidities from $E/Z = 2$ EV to 100 EV, i.e., covering the possibility of primary particles as heavy as Fe nuclei with energies exceeding 50 EeV. The Galactic magnetic field is modeled using the recent work of Jansson and Farrar (JF12) which fitted its parameters to match extragalactic Faraday rotation measures and WMAP7 synchrotron emission maps. We include the random component of the GMF using the JF12 3D model for $B_{\rm rand}(\vec{r})$ and explore the impact of different random realizations, coherence length and other features on cosmic ray deflections. Gross aspects of the arrival direction distribution such as mean deflection and the RMS dispersion depend mainly on rigidity and differ relatively little from one realization to another. However different realizations exhibit non-trivial substructure whose specific features vary considerably from one realization to another, especially for lower rigidities. At the lowest rigidity of 2 EV, the distribution is broad enough that it might be compatible with a scenario in which Cen A is the principle source of all UHECRs. No attempt is made here to formulate a robust test of this possibility, although some challenges to such a scenario are noted.
description: 20 pages, 9 figures, 1 table; submitted to Astroparticle Physics
One-Particle Stochastic Lagrangian Model for Turbulent Dispersion in Horizontally Homogeneous Turbulence
Creators: name: Kurbanmuradov, Orazgeldy
name: Sabelfeld, Karl
Publisher: name: Weierstrass Institute
Year: 1998
Subjects: subject: Stochastic models of turbulence
subject: Generalized Langevin stochastic differential equation
subject: Eulerian and Lagrangian one- and two-particle stochastic models of turbulent transport
subject: particle dispersion in the surface layer of the turbulent atmosphere
subject: 65C05
subject: 76F99
subject: 65C20

description: A one-particle stochastic Lagrangian model in 2D and 3D dimensions is constructed for transport of particles in horizontaly homogeneous turbulent flows with arbitrary one-point probability density function. It is shown that in the case of anisotropic turbulence with gaussian pdf, this model essentially differs from the known Thomson's model. The results of calculations according to our model in the case of neutrally stratified atmospheric surface layer agree satisfactorily with the measurements known from the literature.
Microwave-induced spin currents in ferromagnetic-insulator|normal-metal bilayer system
Creators: name: Agrawal, Milan
name: Serga, Alexander A.
name: Lauer, Viktor
name: Papaioannou, Evangelos Th.
name: Hillebrands, Burkard
name: Vasyuchka, Vitaliy I.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A microwave technique is employed to simultaneously examine the spin pumping and the spin Seebeck effect processes in a YIG|Pt bilayer system. The experimental results show that for these two processes, the spin current flows in opposite directions. The temporal dynamics of the longitudinal spin Seebeck effect exhibits that the effect depends on the diffusion of bulk thermal-magnons in the thermal gradient in the ferromagnetic-insulator|normal-metal system.
description: 4 pages, 4 figures
Enantioenriched Piperidinyl Allylic Boronates: From Mechanism to Drug Discovery
Creators: Estaitie, Mohamad
Publisher: name: University of Alberta Library
Year: 2022

Functionalized piperidine rings are frequently found in a variety of alkaloids and pharmaceuticals attesting to the importance of this class of heterocycles in drug discovery. According to recent data, the piperidine ring is the most abundant heterocycle found in FDA approved drugs. Thus, gaining access towards enantioenriched piperidines through convenient and cost-effective methods is highly desirable. One approach to access such heterocycles is the use of enantioenriched alkyl boronic esters. Alkyl boronic esters have gained attention as versatile building blocks in organic transformations and drug discovery due to their low toxicity and configurational stability. This thesis focuses on the development and optimization of synthetic methodologies towards the synthesis of functionalized enantioenriched piperidines using chiral boronic ester intermediates. In addition, this thesis also focuses on the application of such intermediates in drug discovery. Chapter 2 describes a collaborative effort of a mechanistic study on the borylative migration reaction, which is a robust methodology previously reported by our group to access enantioenriched tetrahydropyran and piperidine derivatives. The study uses a combination of experimental and computational approaches to decipher the mechanistic pathway of this reaction. The aim of this project is gain insights about the reaction, which would be useful in expanding the scope of the borylative migration towards other heterocyclic systems. Since its discovery of the borylative migration, the synthetic applications of obtained products were limited to allylboration on aldehydes and Csp3–Csp2 Suzuki–Miyaura cross-coupling reactions. Chapter 3 of this thesis describes our recent efforts to expand the application of the piperidinyl allylic boronic intermediates towards a stereospecific Csp3–Csp3 cross-coupling reactions. This gives access to novel enantioenriched 2-substitued piperidines bearing a cinnamyl moiety. iii Chapter 4 focuses on a collaborative project for the application of the borylative migration reaction in drug discovery. The synthesis of vacquinol-1 analogs, potential drugs in the treatment of glioblastoma multiforme (GBM) is described. In addition, in vitro biological testing of these analogs against GBM cell lines is also presented.
Beyond the limits of layer-dependent CBV fMRI in humans: strategies towards whole brain coverage, sub-second TR, and very high 0.5mm resolutions
Creators: name: Huber, Renzo
name: Chai, Yuhui
name: Strinberg, Ruediger
name: Kashyap, Sriranga
name: Kurban, Deni
name: Khojandi, Arman
name: Ivanov, Dimo
name: Marrett, Sean
name: Stöcker, Tony
name: Uludag, Kamil
name: Bandettini, Peter
name: Poser, Benedikt
Publisher: name: Zenodo
Year: 2020

description: Recent developments of ultra-high field (UHF) MRI and high-resolution CBV-sensitive VASO sequences have made it possible to measure activity changes across cortical depths. However, most methods are limited to individual brain areas of large cortical thicknesses (4mm in M1), long repetition times and small matrix sizes. In this study, we developed multiple VASO sequence approaches to achieve: 1.) Whole-brain coverage (104 slices) at sub-millimeter layer resolutions 2.) Sub-second TRs (TR = 650ms) at sub-millimeter layer resolutions 3.) Extra-high 0.5mm isotropic resolutions with matrix sizes of 316 We tested new sequence concepts and validated their applicability for the neuroscientific context.
Singular behaviour of finite approximations to the addition model
Creators: name: Laurencot, Philippe
Publisher: name: Weierstrass Institute
Year: 1998
Subjects: subject: Addition model
subject: coagulation
subject: non-existence
subject: 82C22
subject: 34A34

description: Instantaneous gelation in the addition model with superlinear rate coefficients is investigated. The conjectured post-gelation solution is shown to arise naturally as the limit of solutions to some finite approximations as the number of equations grows to infinity. Non-existence of continuous solutions to the addition model is also established in that case.
Preservation Brief 12, The Preservation of Historic Pigmented Structural Glass (Vitrolite and Carrara Glass)
Creators: name: Walter, Chelsea
Publisher: name: Technical Preservation Services, National Park Service
Year: 2004
Subjects: subject: Historic
valueUri: https://core.tdar.org/browse/culture-keyword/25/historic
subject: Conservation
valueUri: https://core.tdar.org/browse/other-keyword/1819/conservation
subject: Architectural Documentation
valueUri: https://core.tdar.org/browse/investigation-type/16/architectural-documentation
subject: Methodology, Theory, or Synthesis
valueUri: https://core.tdar.org/browse/investigation-type/6/methodology-theory-or-synthesis
subject: Heritage Management
valueUri: https://core.tdar.org/browse/investigation-type/24/heritage-management
subject: Site Stabilization
valueUri: https://core.tdar.org/browse/investigation-type/11/site-stabilization

description: This is number twelve of 42 preservation briefs prepared by the Technical Preservation Services of the National Park Service. This brief focuses on the preservation of historic pigmented structural glass (Vitrolite and Carrara glass). With today's rekindled interest in the Art Deco, Art Moderne, and Streamline styles, the preservation and replacement of pigmented structural glass have now become an integral part of many rehabilitation projects, particularly in relation to commercial storefronts. This brief, then, was developed in order to address some of the major deterioration problems associated with pigmented structural glass and to recommend methods for maintaining, repairing, and, if necessary, replacing damaged or missing pieces of pigmented structural glass.
Dilute magnetic topological semiconductors: What's new beyond the physics of dilute magnetic semiconductors?
Creators: name: Kim, Kyoung-Min
name: Jho, Yong-Soo
name: Kim, Ki-Seok
Publisher: name: arXiv
Year: 2014
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Role of localized magnetic moments in metal-insulator transitions lies at the heart of modern condensed matter physics, for example, the mechanism of high T$_{c}$ superconductivity, the nature of non-Fermi liquid physics near heavy fermion quantum criticality, the problem of metal-insulator transitions in doped semiconductors, and etc. Dilute magnetic semiconductors have been studied for more than twenty years, achieving spin polarized electric currents in spite of low Curie temperatures. Replacing semiconductors with topological insulators, we propose the problem of dilute magnetic topological semiconductors. Increasing disorder strength which corresponds to the size distribution of ferromagnetic clusters, we suggest a novel disordered metallic state, where Weyl metallic islands appear to form inhomogeneous mixtures with topological insulating phases. Performing the renormalization group analysis combined with experimental results, we propose a phase diagram in $(λ_{so},Γ,T)$, where the spin-orbit coupling $λ_{so}$ controls a topological phase transition from a topological semiconductor to a semiconductor with temperature $T$ and the distribution for ferromagnetic clusters $Γ$ gives rise to a novel insulator-metal transition from either a topological insulating or band insulating phase to an inhomogeneously distributed Weyl metallic state with such insulating islands. Since electromagnetic properties in Weyl metal are described by axion electrodynamics, the role of random axion electrodynamics in transport phenomena casts an interesting problem beyond the physics of percolation in conventional disorder-driven metal-insulator transitions. We also discuss how to verify such inhomogeneous mixtures based on atomic force microscopy.
Design Plans, Air Force Personnel Center Master Plan, Randolph Air Force Base, Texas
Creators: name: Walter, Chelsea
Publisher: name: Benham
Year: 2011
Subjects: subject: Randolph Field Historic Landmark District
valueUri: https://core.tdar.org/browse/geographic-keyword/83364/randolph-field-historic-landmark-district
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: Non-Domestic Structures
valueUri: https://core.tdar.org/browse/site-type/309/non-domestic-structures
subject: Master Plan
valueUri: https://core.tdar.org/browse/other-keyword/67230/master-plan
subject: Air Force Personnel Center
valueUri: https://core.tdar.org/browse/other-keyword/153403/air-force-personnel-center
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: Aerial perspectives of the Air Force Personnel Center, Randolph Air Force Base, Texas. Exhibits 1-B, 9-A, and 9-B of the Master Plan.
OAHP Inventory, Building 5109 General Instruction Building, Camp Bullis, Texas
Creators: name: Walter, Chelsea
Publisher: name: Office of Archaeology and Historic Preservation
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: 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: 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: General Instruction Building
valueUri: https://core.tdar.org/browse/other-keyword/159055/general-instruction-building
subject: Building 5109
valueUri: https://core.tdar.org/browse/other-keyword/146669/building-5109
subject: OAHP
valueUri: https://core.tdar.org/browse/other-keyword/138292/oahp
subject: Architectural Documentation
valueUri: https://core.tdar.org/browse/investigation-type/16/architectural-documentation
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 Building 5109 at Camp Bullis, Texas. The structure was built in 1930 as a general instruction building.
An axisymmetric steady-state flow through a poroelastic medium under large deformations
Creators: name: Albers, Bettina
name: Wilmański, Krzysztof
Publisher: name: Weierstrass Institute
Year: 1998
Subjects: subject: large deformations of porous materials
subject: diffusion and changes of porosity
subject: filtration problems
subject: perturbation method
subject: 76S05
subject: 76R50
subject: 73G99

description: We present an example of the solution of a boundary value problem for a two-component porous material with large deformations of the skeleton. This example demonstrates the application of a consistent Lagrangian description of porous materials which has been proposed by K. Wilmanski. Simultaneously we demonstrate the important role of the balance equation of porosity which is an essential part of the thermodynamical model of porous materials proposed by K. Wilmanski. We show as well that a modified set of boundary conditions for permeable boundaries yields a solution of field equations which agrees qualitatively with expectations for the problem of axisymmetric stationary filtration. On the basis of a numerical evaluation of solution we indicate the existence of an instability of the model for very large porosities which could not be explained in this work.
A Herschel and CARMA view of CO and [C II] in Hickson Compact groups
Creators: name: Alatalo, Katherine
name: Appleton, Philip N.
name: Lisenfeld, Ute
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Understanding the evolution of galaxies from the starforming blue cloud to the quiescent red sequence has been revolutionized by observations taken with Herschel Space Observatory, and the onset of the era of sensitive millimeter interferometers, allowing astronomers to probe both cold dust as well as the cool interstellar medium in a large set of galaxies with unprecedented sensitivity. Recent Herschel observations of of H2-bright Hickson Compact Groups of galaxies (HCGs) has shown that [CII] may be boosted in diffuse shocked gas. CARMA CO(1-0) observations of these [CII]-bright HCGs has shown that these turbulent systems also can show suppression of SF. Here we present preliminary results from observations of HCGs with Herschel and CARMA, and their [CII] and CO(1-0) properties to discuss how shocks influence galaxy transitions and star formation.
description: 4 pages, 3 figures, Proceedings for IAU Symposium 309, Galaxies in 3D across the Universe
CRISPR Gene Editing: Designing the gRNA and Donor Template
Creators: name: Lorenz, Laurel
Publisher: name: QUBES Educational Resources
Year: 2020

description: In this adaptation, students learn how CRISPR/Cas9 is used in bacterial immunity and gene editing. Students create both a gRNA target and a donor template to edit a gene. Mutations can be from the case study, Piwi Matter, or designed by the instructor.
Walery Przyborowski a polska edukacja historyczna i historiografia po 1945 roku. In: Krzysztof Stępnik / Gabryś, Monika (Ed.): Walery Przyborowski i Józef Brandt. Lublin: UMCS 2008, 79–98.
Creators: name: Monika, Bednarczuk
Publisher: name: Zenodo
Year: 2008

description: Walery Przyborowski a polska edukacja historyczna i historiografia po 1945 roku.
Polytropic models of filamentary interstellar clouds - I. Structure and stability
Creators: name: Toci, Claudia
name: Galli, Daniele
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The properties of filamentary interstellar clouds observed at sub-millimetre wavelengths, especially by the Herschel Space Observatory, are analysed with polytropic models in cylindrical symmetry. The observed radial density profiles are well reproduced by negative-index cylindrical polytropes with polytropic exponent $1/3\lesssim γ_{\rm p} \lesssim 2/3$ (polytropic index $-3\lesssim n \lesssim -3/2$), indicating either external heating or non-thermal pressure components. However, the former possibility requires unrealistically high gas temperatures at the filament's surface and is therefore very unlikely. Non-thermal support, perhaps resulting from a superposition of small-amplitude Alfvén waves (corresponding to $γ_{\rm p}=1/2$), is a more realistic possibility, at least for the most massive filaments. If the velocity dispersion scales as the square root of the density (or column density) on the filament's axis, as suggested by observations, then polytropic models are characterised by a uniform width. The mass per unit length of pressure-bounded cylindrical polytropes depends on the conditions at the boundary and is not limited as in the isothermal case. However, polytropic filaments can remain stable to radial collapse for values of the axis-to-surface density contrast as large as the values observed only if they are supported by a non-isentropic pressure component.
description: 9 pages, 4 figures. Accepted for publication in MNRAS
Alignments of the Galaxies in and around the Virgo Cluster with the Local Velocity Shear
Creators: name: Lee, Jounghun
name: Rey, Soo-Chang
name: Kim, Suk
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: An observational evidence is presented for the alignment between the cosmic sheet and the principal axis of the velocity shear field at the position of the Virgo cluster. The galaxies in and around the Virgo cluster from the Extended Virgo Cluster Catalog recently constructed by Kim et al. are used to determine the direction of the local sheet. The peculiar velocity field reconstructed from the Sloan Digital Sky Survey Data Release 7 is analyzed to estimate the local velocity shear tensor at the Virgo center. Showing first that the minor principal axis of the local velocity shear tensor is almost parallel to the line of sight direction, we detect a clear signal of alignment between the positions of the Virgo satellites and the intermediate principal axis of the local velocity shear projected onto the plane of the sky. Furthermore, the dwarf satellites are found to appear more strongly aligned than the normal counterparts, which is interpreted as indication of the following: (i) The normal and the dwarf satellites fall in the Virgo cluster preferentially along the local filament and the local sheet, respectively. (ii) The local filament is aligned with the minor principal axis of the local velocity shear while the local sheet is in parallel to the plane spanned by the minor and the intermediate principal axes. Our result is consistent with the recent numerical claim that the velocity shear is a good tracer of the cosmic web.
description: Accepted for publication in ApJ, 5 figures