cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Striking Zn impurity effect on the Fe-based superconductor BaFe1.87Co0.13As2
Creators: name: Li, J. J.
name: Guo, Y. F.
name: Zhang, S. B.
name: Yu, S.
name: Tsujimoto, Y.
name: Yamaura, K.
name: Takayama-Muromachi, E.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Nonmagnetic impurity effect was studied on the n-type Fe-based superconductor BaFe1.87Co0.13As2 (Tc = 25 K) by a successful Zn substitution for Fe up to 7 at.%. Magnetic susceptibility, electrical resistivity, specific heat, and Hall coefficient measurements indicated that Tc linearly decreases with the Zn concentration and disappears at 7 at.%. The result is quantitatively comparable with what was observed for YBCO, while it disagrees with a recent report for the p-type Ba0.5K0.5Fe2As2. Fragile SC against a nonmagnetic impurity was first confirmed for the n-type 122 Fe-based superconductor.
description: 14 pages, 5 figures
Comparison of the magnetic properties of GeMn thin films through Mn L-edge x-ray absorption
Creators: name: Ahlers, S.
name: Stone, P. R.
name: Sircar, N.
name: Arenholz, E.
name: Dubon, O. D.
name: Bougeard, Dominique
Publisher: name: Universität Regensburg
Year: 2009
Subjects: subject: 530 Physik

description: X-ray absorption spectroscopy of epitaxial GeMn thin films reveals an experimentally indistinguishable electronic configuration of Mn atoms incorporated in Ge(1-x)Mn(x) nanoclusters and in precipitates of the intermetallic compound Mn(5)Ge(3), respectively. However, the average magnetic response of thin films containing Ge(1-x)Mn(x) nanoclusters is lower than the response of films containing Mn(5)Ge(3) precipitates. This reduced magnetic response of Ge(1-x)Mn(x) nanoclusters is explained in terms of a fraction of Mn atoms being magnetically inactive due to antiferromagnetic coupling or the presence of structural disorder. A determination of the role of magnetically inactive Mn atoms in the self-assembly of the thermodynamically metastable Ge(1-x)Mn(x) nanoclusters seems to be an essential ingredient for an enhanced control of this promising high Curie temperature magnetic semiconductor.
New GABA amides activating GABA A-receptors
Creators: name: Raster, Peter
name: Späth, Andreas
name: Bultakova, Svetlana
name: Gorostiza, Pau
name: König, Burkhard
name: Bregestovski, Piotr
Publisher: name: Universität Regensburg
Year: 2013
Subjects: subject: CHO-cells; GABA; GABA-amides; GABA-superagonist; patch-clamp recording
subject: 540 Chemie

description: We have prepared a series of new and some literature-reported GABA-amides and determined their effect on the activation of GABAA-receptors expressed in CHO cells. Special attention was paid to the purification of the target compounds to remove even traces of GABA contaminations, which may arise from deprotection steps in the synthesis. GABA-amides were previously reported to be partial, full or superagonists. In our hands these compounds were not able to activate GABAA-receptor channels in whole-cell patch-clamp recordings. New GABA-amides, however, gave moderate activation responses with a clear structure–activity relationship suggesting some of these compounds as promising molecular tools for the functional analysis of GABAA-receptors.
Homological mirror symmetry for punctured spheres
Creators: name: Abouzaid, Mohammed
name: Auroux, Denis
name: Efimov, Alexander I.
name: Katzarkov, Ludmil
name: Orlov, Dmitri
Publisher: name: arXiv
Year: 2011
Subjects: subject: Algebraic Geometry (math.AG)
subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics
subject: 53D37, 14J33 (Primary), 53D40, 53D12, 18E30, 14F05 (Secondary)

description: We prove that the wrapped Fukaya category of a punctured sphere ($S^2$ with an arbitrary number of points removed) is equivalent to the triangulated category of singularities of a mirror Landau-Ginzburg model, proving one side of the homological mirror symmetry conjecture in this case. By investigating fractional gradings on these categories, we conclude that cyclic covers on the symplectic side are mirror to orbifold quotients of the Landau-Ginzburg model.
description: 38 pages, 5 figures; v2: minor revisions (similar to published version)
Topographical fingerprints of many-body interference in STM junctions on thin insulating films
Creators: name: Donarini, Andrea
name: Siegert, Benjamin
name: Sobczyk, Sandra
name: Grifoni, Milena
Publisher: name: Universität Regensburg
Year: 2012
Subjects: subject: 530 Physik

description: Negative differential conductance is a nonlinear transport phenomenon ubiquitous in molecular nanojunctions. Its physical origin can be the most diverse. In rotationally symmetric molecules with orbitally degenerate many-body states it can be ascribed to interference effects. We establish in this paper a criterion to identify the interference blocking scenario by correlating the spectral and the topographical information achievable in a scanning tunneling microscopy (STM) single-molecule measurement. Simulations of current-voltage characteristics as well as constant-height and constant-current STM images for a Cu-phthalocyanine on a thin insulating film are presented as experimentally relevant examples.
Image description and Indigenous cultural heritage collections : an empirical analysis
Creators: name: Jennings, Michele Lee
Publisher: name: University of British Columbia
Year: 2017

description: The purpose of this study is to compare models for image description with calls for self-determination and collaboration when considering online collections of Indigenous visual culture in the United States and Canada. Library and information studies models for providing subject access to images frequently draw upon Erwin Panofsky’s multi-level system for performing iconographical art historical analysis. Image description models, which rely on the Ofness and Aboutness of an image, threaten to impose a static meaning of an image rather than a dynamic interpretation that is indicative of traditional knowledge systems. Furthermore, discussions which stress expertise for effective image description and indexing prioritize Western epistemologies and bias-laden controlled vocabularies while the call for community collaboration in determining knowledge organization for Indigenous materials calls into question what counts as expertise and who is considered an expert. For library and museum professionals tasked with bridging the semantic gap inherent in translating image to text, the question remains whether effective image description is achievable, whether it can be done responsibly, and whether this is supported through best practices guidelines and controlled vocabularies. This study employs content analysis of image subject metadata for Indigenous visual culture from twenty case study libraries and museums to determine how images are being described as well as observation of institutional efforts to incorporate Indigenous voices and perspectives in institutional contexts. Additional data was gathered through questionnaires from cataloguers at each case. This study will examine not only the issues surrounding image indexing and description, but also organizational cultures and their effect on metadata creation, including differences in cataloguing depending on organizational context and professional values or modus operandi between museums and libraries. Additionally, the focus on Indigenous visual culture brings unique challenges and professional responsibilities that must be addressed. The goal of this study is not necessarily to reveal collections and institutions that do this most effectively, but to demonstrate the factors that make it possible to do so and to discover whether institutions can navigate the landscape of “best practices” in a way that is effective for users and responsible to the communities represented.
Spherical collapse model in dark energy cosmologies
Creators: name: Pace, F.
name: Waizmann, J. -C.
name: Bartelmann, M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study the spherical collapse model for several dark energy scenarios using the fully nonlinear differential equation for the evolution of the density contrast within homogeneous spherical overdensities derived from Newtonian hydrodynamics. While mathematically equivalent to the more common approach based on the differential equation for the radius of the perturbation, this approach has substantial conceptual as well as numerical advantages. Among the most important are that no singularities at early times appear, which avoids numerical problems in particular in applications to cosmologies with dynamical and early dark energy, and that the assumption of time-reversal symmetry can easily be dropped where it is not strictly satisfied. We use this approach to derive the two parameters characterising the spherical-collapse model, i.e.~the linear density threshold for collapse $δ_\mathrm{c}$ and the virial overdensity $Δ_\mathrm{V}$, for a broad variety of dark-energy models and to reconsider these parameters in cosmologies with early dark energy. We find that, independently of the model under investigation, $δ_\mathrm{c}$ and $Δ_\mathrm{V}$ are always very close to the values obtained for the standard $Λ$CDM model, arguing that the abundance of and the mean density within non-linear structures are quite insensitive to the differences between dark-energy cosmologies. Regarding early dark energy, we thus arrive at a different conclusion than some earlier papers, including one from our group, and we explain why.
description: 11 pages, 7 figures, accepted for publications on MNRAS
Papeterie Fritz Fischer - Wollishofer Blog
Creators: name: Brändli, Sebastian
Publisher: name: Zentralbibliothek Zürich
Year: 2021
Subjects: subject: 700 Künste, Bildende und angewandte Kunst
subject: Zürich-Wollishofen
subject: Postkarte
subject: Einzelhandel

description: Ein Blog zu Geschichte und Quartierleben des Zürcher Stadtquartiers Wollishofen auf wollipedia.ch. Mit Texten von Sebastian Brändli (SB) und Ansichtskarten aus der Sammlung von Markus Zimmermann (MZ).
Electrostatically defined quantum dots in a Si/SiGe heterostructure
Creators: name: Wild, A.
name: Sailer, J.
name: Nützel, J.
name: Abstreiter, G.
name: Ludwig, S.
name: Bougeard, Dominique
Publisher: name: Universität Regensburg
Year: 2010
Subjects: subject: 530 Physik

description: We present an electrostatically defined few-electron double quantum dot (QD) realized in a molecular beam epitaxially grown Si/SiGe heterostructure. Transport and charge spectroscopy with an additional QD as well as pulsed-gate measurements are demonstrated. We discuss technological challenges specific to silicon-based heterostructures and the effect of a comparably large effective electron mass on transport properties and tunability of the double QD. Charge noise, which might be intrinsically induced due to strain engineering, is proven not to affect the stable operation of our device as a spin qubit.
A High-resolution Scintillating Fiber Tracker With Silicon Photomultiplier Array Readout
Creators: name: Beischer, Bastian
name: Gast, Henning
name: Greim, Roman
name: Karpinski, Waclaw
name: Kirn, Thomas
name: Nakada, Tatsuya
name: Yearwood, Gregorio Roper
name: Schael, Stefan
name: Wlochal, Michael
Publisher: name: arXiv
Year: 2010
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present prototype modules for a tracking detector consisting of multiple layers of 0.25 mm diameter scintillating fibers that are read out by linear arrays of silicon photomultipliers. The module production process is described and measurements of the key properties for both the fibers and the readout devices are shown. Five modules have been subjected to a 12 GeV/c proton/pion testbeam at CERN. A spatial resolution of 0.05 mm and light yields exceeding 20 detected photons per minimum ionizing particle have been achieved, at a tracking efficiency of more than 98.5%. Possible techniques for further improvement of the spatial resolution are discussed.
description: 31 pages, 27 figures, pre-print version of an article published in Nuclear Instruments and Methods in Physics Research Section A, Vol. 622
Aerobic granular biomass using municipal primary effluent : a comparative monitoring study
Creators: name: Woolley, Sylvia
Publisher: name: University of British Columbia
Year: 2018

description: In the past two decades, aerobic granular biomass (AGB), has proven to be a viable candidate as a biological wastewater treatment solution, and has been implemented worldwide in the Nereda® process; yet, a lack of research and application of AGB systems in North America, could hinder its application in Canada. As such, two pilot-scale, sequencing batch reactors were operated to cultivate AGB using low-strength, Canadian municipal wastewater. The study was separated into two phases, to fulfil the primary objective: (a) to see the influence of additional volatile fatty acids (VFA) on granulation; and subsequently, a secondary objective: (b) to find out if the granulation start-up time can be decreased by increasing the rate of selection pressure application. During the first phase, Reactor 2, on average, received 42% more VFA than the other, which acquired VFA solely from the primary effluent feed. Granules were observed in both reactors, however, neither system produced the smooth, dense granules expected with AGB. The granules had outgrowth on the peripheral, and the system that received additional VFA had more outgrowth and higher shape irregularity. It is understood high amounts of VFA breakthrough into the aerobic phase of the cycle led to granular instability, which was more intensely noted in the system that had higher inlet VFA concentrations (both systems ended up using similar amounts of VFA during the anaerobic phase). Preserving high biomass concentrations proved to be challenging in maintaining stability during start-up. Nutrient removal was observed consistently in both systems, but, due to high dissolved oxygen concentrations, denitrification was not achieved significantly in either system. The lack of denitrification caused limitations in orthophosphate removal with VFA competition occurring between denitrifiers and polyphosphate accumulating organisms in the subsequent anaerobic phase. Overall, it was concluded that additional VFA is not a necessity for granulation using local wastewater, during the observed season. Phase 2 was not successful in achieving granulation. Colder temperatures, lower strength wastewater and a short schedule were all factors that attributed. Valuable lessons in granular start-up were attained from Phase 2, despite the initial objective not being fulfilled.
title: Call the plumber! A review of non-calculous causes of urinary obstruction
Creators: name: Fraj, Bouhajja
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Urinary Tract / Bladder
subject: Oncology
subject: CT
subject: Contrast agent-intravenous
subject: Neoplasia

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To review the anatomy of the upper and lower urinary tract. To discuss various imaging modalities available in the evaluation of obstructive uropathy. To discuss key imaging features on select non-calculous causes of obstructive uropathy in...
Jahreshefte des Vereins für Vaterländische Naturkunde in Württemberg : zugl. Jahrbuch d. Staatlichen Museums für Naturkunde in Stuttgart
Creators: name: Unkn
Publisher: name: unkn
Year: 2021

description: Jahreshefte des Vereins für Vaterländische Naturkunde in Württemberg : zugl. Jahrbuch d. Staatlichen Museums für Naturkunde in Stuttgart
description: Bd. 50, 1894
Minimum Pseudoweight Analysis of 3-Dimensional Turbo Codes
Creators: name: Rosnes, Eirik
name: Helmling, Michael
name: Amat, Alexandre Graell i
Publisher: name: arXiv
Year: 2011
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: In this work, we consider pseudocodewords of (relaxed) linear programming (LP) decoding of 3-dimensional turbo codes (3D-TCs). We present a relaxed LP decoder for 3D-TCs, adapting the relaxed LP decoder for conventional turbo codes proposed by Feldman in his thesis. We show that the 3D-TC polytope is proper and $C$-symmetric, and make a connection to finite graph covers of the 3D-TC factor graph. This connection is used to show that the support set of any pseudocodeword is a stopping set of iterative decoding of 3D-TCs using maximum a posteriori constituent decoders on the binary erasure channel. Furthermore, we compute ensemble-average pseudoweight enumerators of 3D-TCs and perform a finite-length minimum pseudoweight analysis for small cover degrees. Also, an explicit description of the fundamental cone of the 3D-TC polytope is given. Finally, we present an extensive numerical study of small-to-medium block length 3D-TCs, which shows that 1) typically (i.e., in most cases) when the minimum distance $d_{\rm min}$ and/or the stopping distance $h_{\rm min}$ is high, the minimum pseudoweight (on the additive white Gaussian noise channel) is strictly smaller than both the $d_{\rm min}$ and the $h_{\rm min}$, and 2) the minimum pseudoweight grows with the block length, at least for small-to-medium block lengths.
description: To appear in IEEE Transactions on Communications
Bericht über die achtundvierzigste Generalversammlung vom 29. Juni 1893 in Kirchheim u. T.
Creators: name: ,
Publisher: name: unkn
Year: 2021

description: Jahreshefte des Vereins für Vaterländische Naturkunde in Württemberg : zugl. Jahrbuch d. Staatlichen Museums für Naturkunde in Stuttgart
description: Bd. 50, 1894
Supplement Data- PEI3-2024-0078.pdf
Creators: name: Masheti, Yona
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 300409
subject: Crop and pasture protection (incl. pests, diseases and weeds)

description: This dataset contains chi-square test results evaluating various farming practices and challenges related to bean scab prevalence in Kenya. The data was collected from surveys conducted across major bean-growing regions in 2021 and 2022, focusing on crop rotation, variety composition, cropping composition, seed types and sources, and gender-related farming challenges. Observed and expected values are presented alongside chi-square calculations for key variables, including management awareness, challenge perception, and chemical application practices. The dataset includes the degrees of freedom, calculated chi-square values, and associated p-values for each comparison, enabling statistical analysis of differences in farming practices between Western Kenya and other regions. Additionally, farm size data analyzed using ANOVA provides insights into variations across different provinces, with results detailing the sum of squares, mean squares, F-values, and significance levels for farm size comparisons. The dataset offers a comprehensive view of the relationships between farming practices and the prevalence of bean scab, highlighting significant challenges faced by smallholder farmers.
Übersicht über den früheren und jetzigen Stand der Geognosie Oberschwabens
Creators: name: Probst, Joseph
Publisher: name: unkn
Year: 2021

description: Jahreshefte des Vereins für Vaterländische Naturkunde in Württemberg : zugl. Jahrbuch d. Staatlichen Museums für Naturkunde in Stuttgart
description: Bd. 50, 1894
Zur Rotatorienfauna Württembergs. Zweiter Beitrag
Creators: name: Bilfinger, Ludwig
Publisher: name: unkn
Year: 2021

description: Jahreshefte des Vereins für Vaterländische Naturkunde in Württemberg : zugl. Jahrbuch d. Staatlichen Museums für Naturkunde in Stuttgart
description: Bd. 50, 1894
Spherical Polymer Brushes Under Good Solvent Conditions: Molecular Dynamics Results Compared to Density Functional Theory
Creators: name: Verso, Federica Lo
name: Egorov, Sergei A.
name: Milchev, Andrey
name: Binder, Kurt
Publisher: name: arXiv
Year: 2010
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A coarse grained model for flexible polymers end-grafted to repulsive spherical nanoparticles is studied for various chain lengths and grafting densities under good solvent conditions, by Molecular Dynamics methods and density functional theory. With increasing chain length the monomer density profile exhibits a crossover to the star polymer limit. The distribution of polymer ends and the linear dimensions of individual polymer chains are obtained, while the inhomogeneous stretching of the chains is characterized by the local persistence lengths. The results on the structure factor of both single chain and full spherical brush as well as the range of applicability of the different theoretical tools are presented. Eventually an outlook on experiments is given.
description: 12 figures
Synopsis der deutschen Blindwanzen (Hemiptera heteroptera, Fam. Capsidae)
Creators: name: Hüeber, Theodor
Publisher: name: unkn
Year: 2021

description: Jahreshefte des Vereins für Vaterländische Naturkunde in Württemberg : zugl. Jahrbuch d. Staatlichen Museums für Naturkunde in Stuttgart
description: Bd. 50, 1894
A Theoretical Diagnosis on Light Speed Anisotropy from GRAAL Experiment
Creators: name: Lingli, Zhou
name: Ma, Bo-Qiang
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: The light speed anisotropy, i.e., the variation of the light speed with respect to the direction in an "absolute" reference frame, is a profound issue in physics. The one-way experiment, performed at the GRAAL facility of the European Synchrotron Radiation Facility (ESRF) in Grenoble, reported results on the light speed anisotropy by Compton scattering of laser photons on high-energy electrons. So far, most articles concerned with the GRAAL data have established only the upper bounds on the anisotropy parameters based on available theories. We use a new theory of the Lorentz invariance violation to analyse the available GRAAL data and obtain the stringent upper limit of the order $2.4\times10^{-14}$ on the Lorentz violation parameters. In the meantime, we also can reproduce the allowed light speed anisotropy appearing in the azimuthal distribution of the GRAAL experimental data, and find that the best-fit parameters are compatible with the competitive upper bounds.
description: 13 pages, 2 figures, final version in journal publication
A three-dimensional silicon photonic crystal nanocavity with enhanced emission from embedded germanium islands
Creators: name: Hauke, N.
name: Tandaechanurat, A.
name: Zabel, T.
name: Reichert, T.
name: Takagi, H.
name: Kaniber, M.
name: Iwamoto, S.
name: Bougeard, Dominique
name: Finley, J. J.
name: Abstreiter, G.
name: Arakawa, Y.
Publisher: name: Universität Regensburg
Year: 2012
Subjects: subject: 530 Physik

description: We report the realization of a silicon three-dimensional photonic crystal nanocavity containing self-assembled germanium-island emitters. The three-dimensional woodpile photonic crystal was assembled layer by layer by micromanipulation using silicon plates grown by molecular beam epitaxy. An optical nanocavity was formed in the center of the photonic crystal by introducing a point defect into one of the plates. Measurements of the filtered spontaneous emission from the Ge islands in the active plate through the localized modes of the structure directly reveal information on the evolution of the frequency and Q-factor as upper cladding plates are sequentially added. An exponential increase of the cavity-Q is observed when the number of upper cladding plates is increased up to a maximum of ten. The emission of germanium-islands within the cavity reveals several strongly polarized cavity modes with quality-factors up to approximate to 13 600. The emission intensity of the cavity modes is enhanced by large factors up to approximate to 58 x as compared with the active plate outside the photonic environment.
Annealing-induced magnetic moments detected by spin precession measurements in epitaxial graphene on SiC
Creators: name: Birkner, Bastian
name: Pachniowski, Daniel
name: Sandner, Andreas
name: Ostler, Markus
name: Seyller, Thomas
name: Fabian, Jaroslav
name: Ciorga, Mariusz
name: Weiss, Dieter
name: Eroms, Jonathan
Publisher: name: Universität Regensburg
Year: 2013
Subjects: subject: 530 Physik
subject: 72.25.-b, 72.80.Vp, 85.75.-d

description: We present results of nonlocal and three-terminal (3T) spin precession measurements on spin injection devices fabricated on epitaxial graphene on SiC. The measurements were performed before and after an annealing step at 150 ∘C for 15 minutes in vacuum. The values of spin relaxation length Ls and spin relaxation time τs obtained after annealing are reduced by a factor 2 and 4, respectively, compared to those before annealing. An apparent discrepancy between spin diffusion constant Ds and charge diffusion constant Dc can be resolved by investigating the temperature dependence of the g factor, which is consistent with a model for paramagnetic magnetic moments.
Codimensions of polynomial identities of representations of Lie algebras
Creators: name: Gordienko, Alexey Sergeevich
Publisher: name: arXiv
Year: 2011
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 17B01 (Primary) 16R10, 17B10, 20C30 (Secondary)

description: Consider a representation $ρ\colon L \to \mathfrak{gl}(V)$ where $L$ is a Lie algebra and $V$ is a finite dimensional vector space. We prove the analog of Amitsur's conjecture on asymptotic behavior for codimensions of polynomial identities of $ρ$.
description: 12 pages. Lemma 11 and Lemma 12 were clarified. Also some other minor misprints has been corrected. Examples 1-5 were added
The role of stationary and dynamic test patterns in rapid forms of motion after-effect
Creators: name: Pavan, Andrea
name: Skujevskis, Maris
Publisher: name: Universität Regensburg
Year: 2013
Subjects: subject: brief (subsecond) adaptation , stationary test pattern , dynamic test pattern , motion after-effect (MAE) , rapid motion after-effect (rMAE) , phase shift , temporal frequency selectivity
subject: 150 Psychologie

description: Subsecond adaptation to directional motion can induce a rapid form of motion after-effect (rMAE). Unlike the characteristics of the classic motion after-effect (MAE), produced by adaptation of several seconds or minutes, the properties of the rMAE have been less well explored. In a series of experiments, we assessed the role of stationary and dynamic test patterns (counterphase flickering gratings) in generating rMAE. In particular, we varied the duration, temporal frequency, and spatial phase of the adapting stimuli. Our results show that rMAE is only generated by dynamic test patterns, exhibiting a strong dependence on the adaptation duration and temporal frequency but not on the spatial phase. Similarly to the classic dynamic MAE, the temporal frequency tuning of the dynamic rMAE suggests the involvement of both low-pass and band-pass visual channels. Unexpectedly, our results do not show evidence for static rMAE. We speculate that a stationary test pattern presented immediately (or very soon) after the adapting pattern could interfere with the effects of adaptation by disrupting weak motion signals that arise from adapted and unadapted motion detectors (Ledgeway & Smith, 1994a, 1994b).
On the Ranks of the 2-Selmer Groups of Twists of a Given Elliptic Curve
Creators: name: Kane, Daniel M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: We extend work of Swinnerton-Dyer on the density of the number of twists of a given elliptic curve that have 2-Selmer group of a particular rank.
Über Ammonoideen mit "anormaler Wohnkammer"
Creators: name: Pompeckj, Josef Felix
Publisher: name: unkn
Year: 2021

description: Jahreshefte des Vereins für Vaterländische Naturkunde in Württemberg : zugl. Jahrbuch d. Staatlichen Museums für Naturkunde in Stuttgart
description: Bd. 50, 1894
Asymptotic Optimality Theory For Decentralized Sequential Multihypothesis Testing Problems
Creators: name: Wang, Yan
name: Mei, Yajun
Publisher: name: arXiv
Year: 2010
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: The Bayesian formulation of sequentially testing $M \ge 3$ hypotheses is studied in the context of a decentralized sensor network system. In such a system, local sensors observe raw observations and send quantized sensor messages to a fusion center which makes a final decision when stopping taking observations. Asymptotically optimal decentralized sequential tests are developed from a class of "two-stage" tests that allows the sensor network system to make a preliminary decision in the first stage and then optimize each local sensor quantizer accordingly in the second stage. It is shown that the optimal local quantizer at each local sensor in the second stage can be defined as a maximin quantizer which turns out to be a randomization of at most $M-1$ unambiguous likelihood quantizers (ULQ). We first present in detail our results for the system with a single sensor and binary sensor messages, and then extend to more general cases involving any finite alphabet sensor messages, multiple sensors, or composite hypotheses.
description: 14 pages, 1 figure, submitted to IEEE Trans. Inf. Theory
Beiträge zur Pilzflora von Württemberg. I.
Creators: name: Kirchner, Oskar von
name: Eichler, Julius
Publisher: name: unkn
Year: 2021

description: Jahreshefte des Vereins für Vaterländische Naturkunde in Württemberg : zugl. Jahrbuch d. Staatlichen Museums für Naturkunde in Stuttgart
description: Bd. 50, 1894
Repairing and retrofitting of non-seismically designed reinforced concrete circular bridge piers with low grade glass fibre reinforced polymer
Creators: name: Hossain, Md. Mosharef
Publisher: name: University of British Columbia
Year: 2017

description: Many of the highway bridges in Canada have passed their anticipated service life and do not meet the current seismic standard because of seismic design code upgradation. These bridges either need to be demolished or seismically upgraded causing a huge impact on the economy. A cost-effective alternative to current rehabilitation materials is required that can serve the purpose reliably. Glass Fibre Reinforced Polymer is a composite material that has emerged as a viable solution to this with its attractive mechanical properties, corrosion resistance and ease of application. This thesis presents an experimental investigation on the effect of repairing and retrofitting on the performance of damaged and deficient reinforced concrete circular bridge piers using a low grade GFRP. Market available bi-directional GFRP fabrics, commonly used for non-structural application like boat and yacht strengthening were used and their mechanical and bonding properties were obtained by laboratory test. The effect of this GFRP confinement thickness on the compressive strength of concrete was evaluated by testing cylinders confined with GFRP layers having a variable thickness. The effect was further investigated on the performance of 1/3 scale circular bridge piers by repairing and retrofitting with 2 layers and 150 mm overlap length of GFRP. Performance of these piers was compared in terms of lateral load capacity, drift, ductility and energy dissipation capacity with deficient pier. Finally, the performance of repaired and retrofitted piers under simulated seismic aftershocks was investigated and compared. Results of this study show that GFRP repaired pier can restore its strength with increased ductility and retrofitting it before damage improves the flexural capacity by 27%, energy dissipation capacity by 140% and ductility by 73%. Also, the retrofitted pier was capable of withstanding six consecutive seismic loading whereas the repaired pier failed after only two sets of seismic loading.
Smooth Fano polytopes arising from finite directed graphs
Creators: name: Higashitani, Akihiro
Publisher: name: arXiv
Year: 2011
Subjects: subject: Combinatorics (math.CO)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14M25, 52B20, 05C20

description: In this paper, we consider terminal reflexive polytopes arising from finite directed graphs and study the problem of deciding which directed graphs yield smooth Fano polytopes. We show that any centrally symmetric or pseudo-symmetric smooth Fano polytopes can be obtained from directed graphs. Moreover, by using directed graphs, we provide new examples of smooth Fano polytopes whose corresponding varieties admit Kähler--Einstein metrics.
description: 13 pages, 4 figures
Erdbebenberichte aus Württemberg und Hohenzollern
Creators: name: Schmidt, August
name: Regelmann, Christian
Publisher: name: unkn
Year: 2021

description: Jahreshefte des Vereins für Vaterländische Naturkunde in Württemberg : zugl. Jahrbuch d. Staatlichen Museums für Naturkunde in Stuttgart
description: Bd. 50, 1894
Random G-expectations
Creators: name: Nutz, Marcel
Publisher: name: arXiv
Year: 2010
Subjects: subject: Probability (math.PR)
subject: Optimization and Control (math.OC)
subject: Risk Management (q-fin.RM)
subject: FOS: Mathematics
subject: FOS: Economics and business

description: We construct a time-consistent sublinear expectation in the setting of volatility uncertainty. This mapping extends Peng's G-expectation by allowing the range of the volatility uncertainty to be stochastic. Our construction is purely probabilistic and based on an optimal control formulation with path-dependent control sets.
description: Published in at http://dx.doi.org/10.1214/12-AAP885 the Annals of Applied Probability (http://www.imstat.org/aap/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Criticality of an isotropic-to-smectic transition induced by anisotropic quenched disorder
Creators: name: Chahine, Gilbert
name: Kityk, Andriy V.
name: Knorr, Klaus
name: Lefort, Ronan
name: Guendouz, Mohammed
name: Morineau, Denis
name: Huber, Patrick
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We report combined optical birefringence and neutron scattering measurements on the liquid crystal 12CB nanoconfined in mesoporous silicon layers. This liquid crystal exhibits strong nematic-smectic coupling responsible for a discontinuous isotropic-to-smectic phase transition in the bulk state. Confined in porous silicon, 12CB is subjected to strong anisotropic quenched disorder: a short-ranged smectic state evolves out of a paranematic phase. This transformation appears continuous, losing its bulk first order character. This contrasts with previously reported observations on liquid crystals under isotropic quenched disorder. In the low temperature phase, both orientational and translational order parameters obey the same power-law.
Task-Driven Dictionary Learning
Creators: name: Mairal, Julien
name: Bach, Francis
name: Ponce, Jean
Publisher: name: arXiv
Year: 2010
Subjects: subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Modeling data with linear combinations of a few elements from a learned dictionary has been the focus of much recent research in machine learning, neuroscience and signal processing. For signals such as natural images that admit such sparse representations, it is now well established that these models are well suited to restoration tasks. In this context, learning the dictionary amounts to solving a large-scale matrix factorization problem, which can be done efficiently with classical optimization tools. The same approach has also been used for learning features from data for other purposes, e.g., image classification, but tuning the dictionary in a supervised way for these tasks has proven to be more difficult. In this paper, we present a general formulation for supervised dictionary learning adapted to a wide variety of tasks, and present an efficient algorithm for solving the corresponding optimization problem. Experiments on handwritten digit classification, digital art identification, nonlinear inverse image problems, and compressed sensing demonstrate that our approach is effective in large-scale settings, and is well suited to supervised and semi-supervised classification, as well as regression tasks for data that admit sparse representations.
description: final draft post-refereeing
Daily Life Stress and the Cortisol Awakening Response: Testing the Anticipation Hypothesis
Creators: name: Powell, Daniel J.
name: Schlotz, Wolff
Publisher: name: Universität Regensburg
Year: 2012
Subjects: subject: 150 Psychologie

description: The cortisol awakening response (CAR) is a distinct facet of the circadian cortisol rhythm associated with various health conditions and risk factors. It has repeatedly been suggested that the CAR could be a result of the anticipated demands of the upcoming day (stress anticipation) and could support coping with daily life stress. In a sample of 23 healthy participants CARs were assessed on two consecutive days by measures of salivary cortisol upon awakening (S1) and 30 and 45 minutes later, which were aggregated to the area under the curve increase (AUCI). Stress anticipation was assessed immediately after awakening. On the same days, daily life stress and distress were assessed six times per day based on a quasi-randomized design using handheld computers. Associations were tested by day using regression analysis and standard multilevel/mixed effects models for longitudinal data. The CAR AUCI moderated the effect of daily life stress on distress; higher CAR increases were associated with attenuated distress responses to daily life stress on both days (day 1: p = .039; day 2: p = .004) adjusted for age, gender, sleep quality, time of awakening and oral contraceptive use. Lagged-effects and redundancy models showed that this effect was not due to prior-day CAR increases but specific for same day CARs. On day 2, associations between daily life stress and distress were stronger when individuals showed a higher S1 cortisol level, but this effect was similar for S1 on day 1, and the day 2 effect of S1 became non-significant when S1 on day 1 was controlled. No associations were found between stress anticipation and CARs. Findings indicate that the CAR increase is associated with successful coping with same-day daily life stress.
Better HMC integrators for dynamical simulations
Creators: name: Clark, M. A.
name: Joo, Balint
name: Kennedy, A. D.
name: Silva, P. J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We show how to improve the molecular dynamics step of Hybrid Monte Carlo, both by tuning the integrator using Poisson brackets measurements and by the use of force gradient integrators. We present results for moderate lattice sizes.
description: 6 pages, 1 figure, poster presented at Lattice 2010 (Algorithms and Machines)
Kinase control of the tricellular junction protein Gliotactin, and Gliotactin-induced phenotypes in epithelia
Creators: name: Samarasekera, G.D.Nadika Gayathri
Publisher: name: University of British Columbia
Year: 2017

description: This thesis investigates the kinase-mediated regulation of the tricellular junction protein, Gliotactin and signaling pathways involved in Gliotactin overexpression-induced detrimental phenotypes. Tricellular junctions (TCJ) are uniquely placed permeability barriers formed in polarized epithelia where tight junctions in vertebrates or septate junctions in invertebrates from three cells converge. Misregulation of TCJ specific proteins is detrimental to life. However, mechanisms of their localization, maintenance, and potential signaling are largely unknown. Gliotactin is a transmembrane protein unique to TCJ in Drosophila and is essential for the maturation and maintenance of both bicellular and tricellular septate junctions. However, overexpression of Gliotactin leads to the spread of Gliotactin away from the TCJ and disrupts epithelial architecture by signaling for overproliferation, delamination, migration and apoptosis. One mechanism to control Gliotactin is phosphorylation of two highly conserved tyrosine residues and subsequent endocytosis. However, Gliotactin tyrosine phosphorylation also elicits detrimental phenotypes when dysregulated. The kinases involved in Gliotactin phosphorylation had not been broadly investigated prior to this work. We carried out an RNAi screen for phospho-regulators (kinases and some kinase-associated proteins) to determine which could modify the detrimental phenotypes triggered by Gliotactin overexpression. Four suppressors, four partial suppressors, and 53 enhancers were identified by screening 275 RNAi lines covering 164 genes. We determined that Gliotactin overexpression phenotypes involved TNF-JNK, PI3K-Akt signaling pathways and Btk29A. C-terminal Src kinase (Csk), Ret, PI4KIII-α, Skittles and Pkaap were also identified as candidates for further studies. We focused our analysis on Csk and determined Csk is a regulator of Gliotactin endocytosis and plays a role in the regulation of Gliotactin at the TCJ. Although Csk is known as a negative regulator of Src kinases, we identified that the effect of Csk on Gliotactin is independent of Src, and likely occur through an AJ-associated complex. Taken together, this thesis provides novel insights on the function of Csk and identifys other candidate kinases that have the potential to regulate localization and/or signaling events associated with TCJ formation and function.
ON THE INTEGRATION OF CULTURE TEACHING INTO COLLEGE ENGLISH TEACHING
Creators: name: Li, Yao
name: Xiaofei, Liu
Publisher: name: Современное педагогическое образование
Year: 2021
Subjects: CULTURE TEACHING
INTERCULTURAL COMMUNICATION
INTEGRATION
COMPETENCE

description: As is known to all, language is not only the carrier of culture, the accumulation of culture and the image of culture, but also an important part of culture. Therefore, language teaching must include culture teaching. The process of language learning is the process of understanding and mastering language and cultural knowledge. Cao Wen from Beijing University of Foreign Studies once put forward that culture understanding should be the goal of culture teaching in college English teaching[1]. In order to achieve this goal, the content of culture teaching should include not only the culture of the target language, but the culture of mother tongue and other cultures as well. President Xi Jinping said, “Culture is the soul of a country and a nation. When culture prospers, the country prospers. When culture is strong, the nation is strong. Without a high degree of cultural confidence and cultural prosperity, there will be no great rejuvenation of the Chinese nation” [2]. However, at present, in college English teaching, conscious and comprehensive culture teaching is still in its infancy. Most colleges and universities only focus on the integration of English culture, but ignore the implantation of Chinese culture. This paper is intended to introduce the importance of integrating culture teaching, especially Chinese culture teaching into college English teaching so as to develop students’ competence of intercultural communication and spreading Chinese culture in English.
On Polynomial Multiplication in Chebyshev Basis
Creators: name: Giorgi, Pascal
Publisher: name: arXiv
Year: 2010
Subjects: subject: Computational Complexity (cs.CC)
subject: Performance (cs.PF)
subject: FOS: Computer and information sciences

description: In a recent paper Lima, Panario and Wang have provided a new method to multiply polynomials in Chebyshev basis which aims at reducing the total number of multiplication when polynomials have small degree. Their idea is to use Karatsuba's multiplication scheme to improve upon the naive method but without being able to get rid of its quadratic complexity. In this paper, we extend their result by providing a reduction scheme which allows to multiply polynomial in Chebyshev basis by using algorithms from the monomial basis case and therefore get the same asymptotic complexity estimate. Our reduction allows to use any of these algorithms without converting polynomials input to monomial basis which therefore provide a more direct reduction scheme then the one using conversions. We also demonstrate that our reduction is efficient in practice, and even outperform the performance of the best known algorithm for Chebyshev basis when polynomials have large degree. Finally, we demonstrate a linear time equivalence between the polynomial multiplication problem under monomial basis and under Chebyshev basis.
Measurement of Stigmatization towards Adults with Attention Deficit Hyperactivity Disorder
Creators: name: Fuermaier, Anselm B. M.
name: Tucha, Lara
name: Koerts, Janneke
name: Mueller, Anna K.
name: Lange, Klaus W.
name: Tucha, Oliver
Publisher: name: Universität Regensburg
Year: 2012
Subjects: subject: 150 Psychologie

description: Objectives In general, assessment tools for stigma in mental disorders such as attention deficit hyperactivity disorder (ADHD) are lacking. Moreover, misbeliefs and misconceptions about ADHD are common, in particular with regard to the adult form of ADHD. The aim of the present study was to develop a questionnaire measuring stigma in adults with ADHD and to demonstrate its sensitivity. Methods A questionnaire initially containing 64 items associated with stigma in adults with ADHD was developed. A total number of 1261 respondents were included in the analyses. The psychometric properties were investigated on a sample of 1033 participants. The sensitivity of the questionnaire was explored on 228 participants consisting of teachers, physicians and control participants. Results Thirty-seven items were extracted due to exploratory factor analysis (EFA) and the internal consistency of items. Confirmatory factor analysis (CFA) revealed good psychometric properties of a 6-factor structure. Teachers and physicians differed significantly in their stigmatizing attitudes from control participants. Conclusions The present data shed light on various dimensions of stigma in adult ADHD. Reliability and Social Functioning, Malingering and Misuse of Medication, Ability to Take Responsibility, Norm-violating and Externalizing Behavior, Consequences of Diagnostic Disclosure and Etiology represent critical aspects associated with stigmatization.