cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
What are we missing? Optimising DNA extraction from allophanic soils
Creators: name: Mtandavari, Faith
name: Bell, Nigel
name: van Koten, Chikako
name: Shi, Shengjing
Publisher: name: AgResearch
Year: 2023
Subjects: classificationCode: 4106
subject: Soil sciences

description: Allophanic soils are so named because of the presence of the clay allophane, and, in Aotearoa New Zealand, are predominantly found in the North Island. They make up 5% of New Zealand soils. Due to their different physical and chemical properties to other soils, these clay-rich soils are difficult to extract DNA from. This study was conducted to maximize DNA extraction from allophanic soils for microbiota assessments. Soil samples were collected from five Aotearoa regions, and DNA was extracted using skim milk and casein. Following findings from this work, further testing using different rates of casein was carried out to maximize DNA concentration, and hence, diversity. Amplicon sequencing of the bacterial (16S) and fungal (ITS) marker genes was performed on DNA extracts, and resulting amplicon sequence variants were analyzed to determine any effects the modified extraction method had on apparent microbial biodiversity. Amending extraction protocol with either skim milk or casein significantly increased the amount of DNA extracted from high-clay soils, with skim milk returning higher DNA concentrations than casein. However, with reference to diversity, casein-amended DNA extracts confirmed higher 16S and ITS diversity compared to skim milk extracts.
Speakable and unspeakable in cosmology: dark matter vs. gravitational self energies. Hubble's constant, the cosmological term and all that
Creators: name: Christillin, Paolo
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: The inadequacy of the present cosmological picture is underlined. The central issue of energy and particles-photons number conservation is addressed. It is shown that consideration of gravitational self energy is paramount both for matter and for radiation to bring present data estimates of matter and radiation density and the radius of the universe towards agreement with the Planck scale quantities from which it should have consistently evolved. Particle creation is proven to play a fundamental role in the evolution of the Universe. It is argued that we might be living inside an expanding black hole.
A Likely Close-In Low-Mass Stellar Companion to the Transitional Disk Star HD 142527
Creators: name: Biller, Beth
name: Lacour, Sylvestre
name: Juhász, Attila
name: Benisty, Myriam
name: Chauvin, Gael
name: Olofsson, Johan
name: Pott, Jörg-Uwe
name: Müller, André
name: Sicilia-Aguilar, Aurora
name: Bonnefoy, Mickaël
name: Tuthill, Peter
name: Thebault, Philippe
name: Henning, Thomas
name: Crida, Aurelien
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: With the uniquely high contrast within 0.1" (Δmag(L') = 5-6.5 magnitudes) available using Sparse Aperture Masking (SAM) with NACO at VLT, we detected asymmetry in the flux from the Herbig Fe star HD 142527 with a barycenter emission situated at a projected separation of 88+/-5 mas (12.8+/-1.5 AU at 145 pc) and flux ratios in H, K, and L' of 0.016+/-0.007, 0.012+/-0.008, 0.0086+/-0.0011 respectively (3-σerrors) relative to the primary star and disk. After extensive closure-phase modeling, we interpret this detection as a close-in, low-mass stellar companion with an estimated mass of ~0.1-0.4 M_Sun. HD 142527 has a complex disk structure, with an inner gap imaged in both the near and mid-IR as well as a spiral feature in the outer disk in the near-IR. This newly detected low-mass stellar companion may provide a critical explanation of the observed disk structure.
description: Accepted to ApJ Letters, 7 pages, 3 figures
A note on recursive calculations of particular 9j coefficients
Creators: name: Pain, Jean-Christophe
Publisher: name: arXiv
Year: 2011
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The calculation of angular-momentum coupling transformation matrices can be very time consuming and alternative methods, even if they apply only in special cases, are helpful. We present a recursion relation for the calculation of particular 9j symbols used in the quantum theory of angular momentum.
description: submitted to "Lith. J. Phys."
The ecotoxicology of oil sands tailings on the freshwater leech, Nephelopsis obscura and the oligochaete worm, Tubifex tubifex
Creators: name: Duguay, Anne Madeleine Marie
Publisher: name: University of Calgary
Year: 1997
Subjects: subject: QH545 .O54 D84 1997
subject: Oil sands industry - Alberta
subject: Pollutants - Toxicology
subject: Ecological risk assessment
subject: Leeches - Alberta - Ecology
subject: Leeches - Ecology - Alberta

description: Bibliography: p. 217-235.
Momentum-space calculation of four-boson recombination
Creators: name: Deltuva, A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The system of four identical bosons with large two-boson scattering length is described using momentum-space integral equations for the four-particle transition operators. The creation of Efimov trimers via ultracold four-boson recombination is studied. The universal behavior of the recombination rate is demonstrated.
description: 6 pages, 3 figures, to be published in Phys. Rev. A
D3.1 - Technology Demonstrations
Creators: name: Gradeci, Klodian
Publisher: name: Zenodo
Year: 2021
Subjects: Technology demonstrations; demos; functionalities

description: This report is the BIMprove's Deliverable 3.1. Technology Demonstration. The report describes the functional elements developed during the implementation of the project and it has been updated with newer results after the end of each cycle, being version 3 the last one. It provides a snapshot of the devloped technologies, and refers to the BIMprove video depository, where the developments are more comprehensively demonstrated through video recordings.
Exact quantum master equation for a molecular aggregate coupled to a harmonic bath
Creators: name: Gelin, Maxim F.
name: Egorova, Dassia
name: Domcke, Wolfgang
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider a molecular aggregate consisting of $N$ identical monomers. Each monomer comprises two electronic levels and a single harmonic mode. The monomers interact with each other via dipole-dipole forces. The monomer vibrational modes are bilinearly coupled to a bath of harmonic oscillators. This is a prototypical model for the description of coherent exciton transport, from quantum dots to photosynthetic antennae. We derive an exact quantum master equation for such systems. Computationally, the master equation may be useful for the testing of various approximations employed in theories of quantum transport. Physically, it offers a plausible explanation of the origins of long-lived coherent optical responses of molecular aggregates in dissipative environments.
A developmental analysis of 4- and 6-year olds' narratives: a comparison of formal storytelling to fantasy play
Creators: name: Bergman, Shelley E.
Publisher: name: University of Calgary
Year: 1997
Subjects: subject: Additonal Copy: 370 EDC 1997 BER
subject: Storytelling ability in children
subject: Fantasy in children
subject: Play
subject: Communicative competence in children

description: Bibliography: p. 140-150.
Abell 1201: a Minor merger at second core passage
Creators: name: Ma, Cheng-Jiun
name: Owers, Matt
name: Nulsen, Paul E. J.
name: McNamara, Brian R.
name: Murray, Stephen S.
name: Couch, Warrick J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present an analysis of the structures and dynamics of the merging cluster Abell~1201, which has two sloshing cold fronts around a cooling core, and an offset gas core approximately 500kpc northwest of the center. New Chandra and XMM-Newton data reveal a region of enhanced brightness east of the offset core, with breaks in surface brightness along its boundary to the north and east. This is interpreted as a tail of gas stripped from the offset core. Gas in the offset core and the tail is distinguished from other gas at the same distance from the cluster center chiefly by having higher density, hence lower entropy. In addition, the offset core shows marginally lower temperature and metallicity than the surrounding area. The metallicity in the cool core is high and there is an abrupt drop in metallicity across the southern cold front. We interpret the observed properties of the system, including the placement of the cold fronts, the offset core and its tail in terms of a simple merger scenario. The offset core is the remnant of a merging subcluster, which first passed pericenter southeast of the center of the primary cluster and is now close to its second pericenter passage, moving at ~1000 km/s. Sloshing excited by the merger gave rise to the two cold fronts and the disposition of the cold fronts reveals that we view the merger from close to the plane of the orbit of the offset core.
description: accepted by ApJ
Implementation of comprehensive school health education in secondary schools: a process evaluation
Creators: name: Best, Lori Rachelle
Publisher: name: University of Calgary
Year: 1997
Subjects: subject: AC1 .T484 1997 B34
subject: Additonal Copy: 370 EDC 1997 BES Doucette Library
subject: Health education
subject: Health education - Evaluation

description: Bibliography: p. 179-187.
Profiling the rumen microbiome in New Zealand for potential application in ruminants
Creators: name: Bilton, Timothy
name: Perry, Ben
name: Alemu, Setegn
name: McRae, Kathryn
name: Henry, Hannah
name: Janssen, Peter
name: Hess, Melanie
name: Hickey, Sharon
name: Bain, Wendy
name: Pile, Gerrard
name: Baird, Hayley
name: French, Michelle
name: Ferguson, Sara
name: Vallender, Monica
name: Van Stijn, Tracey
name: Sandoval Rodriguez, Edgar
name: Searle, Andrew
name: Bryson, Brooke
name: Veenvliet, Barry
name: Watson, Trevor
name: Peers-Adams, Jacqui
name: Booker, Fern
name: Dodds, Ken
name: McEwan, John
name: Johnson, Tricia
name: Rowe, Suzanne
Publisher: name: AgResearch
Year: 2023
Subjects: classificationCode: 310703
subject: Microbial ecology
classificationCode: 300301
subject: Animal growth and development

description: The conversion of feed in ruminant animals is driven by microbial fermentation in the rumen. This produces a mix of volatile fatty acids (VFA) that are a major energy source for the animal. Changes in rumen microbial composition can affect the composition of the VFA mix, and therefore affect the overall performance and health of the animal. The relationship between rumen microbiome community (RMC) profiles and livestock traits have been previously investigated and associations with methane, performance and feed intake traits identified. However, the rumen microbial composition is highly variable across environments which may change the relationship of the RMC profiles with livestock traits. Here, we investigate the variation of RMC profiles of ruminants located across a diverse range of farms and flocks in New Zealand. Over 10,000 rumen samples from cattle, deer, goats, and sheep were collected from across New Zealand and sequenced using a restriction enzyme reduced representation sequencing approach to generate RMC profiles. Sequences were classified with the Genome Taxonomy Database (GTDB) using the GBS-TaFFE (https://github.com/BenjaminJPerry/GBSTaFFE) pipeline to determine microbial taxonomy. Results suggest that feed followed by species are the main sources of variation in the RMC, although the top 10 most abundant genera was consistent across these variables. Nevertheless, RMC profiles collected on the same type of ruminants grazing similar feeds were found to be similar, even though samples were collected at geographically distant farms and different seasons and years. Associations between direct measurements and a proxy trait predicted from RMC profiles for methane emissions and feed efficiency was also examined, where moderate-to-high genetic correlations and moderate phenotypic correlations were observed on a subset of the samples collected on sheep. More importantly, we found that RMC profiles could be used as a proxy trait for methane and feed efficiency in selective breeding programs.
Isolated photon production in $\sqrt{s_{NN}}$ = 2.76 TeV PbPb collisions as a function of transverse energy and reaction centrality
Creators: name: Kim, Yongsun
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: In studies of the dense medium produced in ultra-relativistic heavy ion collisions, photons are important hard probes, since they are not expected to be modified by the medium. The measurement of isolated prompt photon production in PbPb collisions provides a test of perturbative quantum chromodynamics (pQCD) and the information to constrain the nuclear parton distribution functions. CMS has shown photon purity measurement capabilities in pp collisions using the shower shape templates. In PbPb co llisions at CMS, this technique was applied for the first time in heavy ion collisions. We report the first measurement of the transverse momentum spectra of isolated photons with pT from 20 GeV/c to 80 GeV/c in PbPb collisions at $\sqrt{s_{NN}}$ =2.76 TeV. The centrality dependence of the nuclear modification factor is also reported by comparing the result to the photon spectrum of pp reference which is computed from NLO calculations.
description: Proceedings of parallel talk at the XXII International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions, Quark Matter 2011, Annecy
Data measured in dust concentration environments.
Creators: name: Tang, Chaoquan
name: Li, Chuncheng
name: ZHOU, Gongbo
name: Shang, Xuejian
name: Zhou, Ping
name: Li, Yue
name: Li, Menggang
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 400999
subject: Electronics, sensors and digital hardware not elsewhere classified

description: Measurement data of material height in dusty environments.
Cosmological evolution of atomic gas and implications for 21 cm HI absorption
Creators: name: Braun, Robert
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Galaxy disks are shown to contain a significant population of atomic clouds of 100pc linear size which are self-opaque in the 21cm transition. These objects have HI column densities as high as 10^23 and contribute to a global opacity correction factor of 1.34+/-0.05 that applies to the integrated 21cm emission to obtain a total HI mass estimate. Opacity-corrected images of the nearest external galaxies have been used to form a robust z=0 distribution function of HI, f(N_HI,X,z=0), the probability of encountering a specific HI column density per unit comoving distance. This is contrasted with previously published determinations of f(N_HI,X) at z=1 and 3. A systematic decline of moderate column density (1820.3) has also declined systematically over this redshift interval by a similar amount, while the cosmological mass density in such systems has declined by only a factor of two to its current, opacity corrected value of Omega_HI^DLA(z=0) = 5.4 +/- 0.9x10^-4. We utilize the tight, but strongly non-linear dependence of 21cm absorption opacity on column density at z=0 to transform our HI images into ones of 21cm absorption opacity. These images are used to calculate distribution and pathlength functions of integrated 21cm opacity. The incidence of deep 21cm absorption systems is predicted to show very little evolution with redshift, while that of faint absorbers should decline by a factor of five between z=3 and the present. We explicitly consider the effects of HI absorption against background sources that are extended relative to the 100pc intervening absorber size scale. Future surveys of 21cm absorption will require very high angular resolution, of about 15mas, for their unambiguous interpretation. (Abridged.)
description: 32 pages, 11 figures, accepted for publication in ApJ
Distributed tracking control of leader-follower multi-agent systems under noisy measurement
Creators: name: Hu, Jiangping
name: Feng, Gang
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: Dynamical Systems (math.DS)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: In this paper, a distributed tracking control scheme with distributed estimators has been developed for a leader-follower multi-agent system with measurement noises and directed interconnection topology. It is supposed that each follower can only measure relative positions of its neighbors in a noisy environment, including the relative position of the second-order active leader. A neighbor-based tracking protocol together with distributed estimators is designed based on a novel velocity decomposition technique. It is shown that the closed loop tracking control system is stochastically stable in mean square and the estimation errors converge to zero in mean square as well. A simulation example is finally given to illustrate the performance of the proposed control scheme.
description: 8 Pages, 3 figures
Gauge theory and SIM(2) superspace
Creators: name: Vohánka, Jiří
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper the SIM(2) superspace formulation of the supersymmetric Yang-Mills gauge theory minimally coupled to chiral superfields is discussed. The super-Poincare invariant supersymmetric Yang-Mills theory is rewritten to SIM(2) superspace formalism and the effects of SIM(2) invariant but Lorentz breaking terms are discussed. Two approaches are investigated. The first is based on the gauge chiral representation of the supersymmetric gauge theory and the second is based on the covariant representation of the supersymmetric gauge theory.
Self-assembly of artificial microtubules
Creators: name: Cheng, Shengfeng
name: Aggarwal, Ankush
name: Stevens, Mark J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Biological Physics (physics.bio-ph)
subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: Biomolecules (q-bio.BM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Understanding the complex self-assembly of biomacromolecules is a major outstanding question. Microtubules are one example of a biopolymer that possesses characteristics quite distinct from standard synthetic polymers that are derived from its hierarchical structure. In order to understand how to design and build artificial polymers that possess features similar to those of microtubules, we have initially studied the self-assembly of model monomers into a tubule geometry. Our model monomer has a wedge shape with lateral and vertical binding sites that are designed to form tubules. We used molecular dynamics simulations to study the assembly process for a range of binding site interaction strengths. In addition to determining the optimal regime for obtaining tubules, we have calculated a diagram of the structures that form over a wide range of interaction strengths. Unexpectedly, we find that the helical tubules form, even though the monomer geometry is designed for nonhelical tubules. We present the detailed dynamics of the tubule self-assembly process and show that the interaction strengths must be in a limited range to allow rearrangement within clusters. We extended previous theoretical methods to treat our system and to calculate the boundaries between different structures in the diagram.
description: 15 pages, 11 figures
Accurate Galactic 21-cm H I measurements with the NRAO Green Bank Telescope
Creators: name: Boothroyd, Arnold I.
name: Blagrave, Kevin
name: Lockman, Felix J.
name: Martin, Peter G.
name: Gonçalves, Daniela Pinheiro
name: Srikanth, Sivasankaran
Publisher: name: arXiv
Year: 2011
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Aims: We devise a data reduction and calibration system for producing highly-accurate 21-cm H I spectra from the Green Bank Telescope (GBT) of the NRAO. Methods: A theoretical analysis of the all-sky response of the GBT at 21 cm is made, augmented by extensive maps of the far sidelobes. Observations of radio sources and the Moon are made to check the resulting aperture and main beam efficiencies. Results: The all-sky model made for the response of the GBT at 21 cm is used to correct for "stray" 21-cm radiation reaching the receiver through the sidelobes rather than the main beam. This reduces systematic errors in 21-cm measurements by about an order of magnitude, allowing accurate 21-cm H I spectra to be made at about 9' angular resolution with the GBT. At this resolution the procedures discussed here allow for measurement of total integrated Galactic H I line emission, W, with errors of 3 K km s^-1, equivalent to errors in optically thin N_HI of 5 x 10^18 cm^-2.
description: 49 pages, 25 figures; A&A, in press
A New Twist In the Evolution of Low-Mass Stars
Creators: name: Denissenkov, Pavel A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We show that the evolutionary track of a low-mass red giant should make an extended zigzag on the Hertzsprung-Russel diagram just after the bump luminosity, if fast internal rotation and enhanced extra mixing in the radiative zone bring the temperature gradient close to the adiabatic one. This can explain both the location and peculiar surface chemical composition of Li-rich K giants studied by Kumar, Reddy, & Lambert (2011). We also discuss a striking resemblance between the photometric and composition peculiarities of these stars and giant components of RS CVn binaries. We demonstrate that the observationally constrained values of the temperature gradient in the Li-rich K giants agree with the required rate of extra mixing only if the turbulence which is believed to be responsible for this extra mixing is highly anisotropic, with its associated transport coefficients in the horizontal direction strongly dominating over those in the vertical direction.
description: 13 pages, 4 figures, submitted to ApJ Letters
Hasenjagd bei den Treverern und anderswo
Creators: name: Parlasca, Klaus
Publisher: name: Trierer Zeitschrift - Archäologie und Kunst des Trierer Landes und seiner Nachbargebiete
Year: 2019

description: [nicht vorhanden]
description: Trierer Zeitschrift - Archäologie und Kunst des Trierer Landes und seiner Nachbargebiete, Bd. 61 (1998): Trierer Zeitschrift : für Geschichte und Kunst des Trierer Landes und seiner Nachbargebiete
Semantic Visualization and Navigation in Textual Corpus
Creators: name: Kboubi, Férihane
name: Chaibi, Anja Habacha
name: BenAhmed, Mohamed
Publisher: name: arXiv
Year: 2012
Subjects: subject: Information Retrieval (cs.IR)
subject: Digital Libraries (cs.DL)
subject: Graphics (cs.GR)
subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: This paper gives a survey of related work on the information visualization domain and study the real integration of the cartography paradigms in actual information search systems. Based on this study, we propose a semantic visualization and navigation approach which offer to users three search modes: precise search, connotative search and thematic search. The objective is to propose to the users of an information search system, new interaction paradigms which support the semantic aspect of the considered information space and guide users in their searches by assisting them to locate their interest center and to improve serendipity.
description: 11 pages, 6 figures
American involvement with British Guiana 1961-1963
Creators: name: Parekh, Hector J.
Publisher: name: University of Calgary
Year: 1997
Subjects: subject: F2384.P37 1997
subject: Jagan, Cheddi
subject: Guyana - Politics and government - 1934-1971
subject: United States - Foreign relations - Guyana

description: Bibliography: p. 135-141.
A critical analysis of the cosmological implementation of Loop Quantum Gravity
Creators: name: Cianfrani, Francesco
name: Montani, Giovanni
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: This papers offers a critical discussion on the procedure by which Loop Quantum Cosmology (LQC) is constructed from the full Loop Quantum Gravity (LQG) theory. Revising recent issues in preserving SU(2) symmetry when quantizing the isotropic Universe, we trace a new perspective in approaching the cosmological problem within quantum geometry. The cosmological sector of LQG is reviewed and a critical point of view on LQC is presented. It is outlined how a polymer-like scale for quantum cosmology can be predicted from a proper fundamental graph underlying the homogeneous and isotropic continuous picture. However, such a minimum scale does not coincide with the choice made in LQC. Finally, the perspectives towards a consistent cosmological LQG model based on such a graph structure are discussed.
description: 11 pages, accepted for publication in Modern Physics Letters A
Bound states of PT-symmetric separable potentials
Creators: name: Bender, Carl M.
name: Jones, Hugh F.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: All of the PT-symmetric potentials that have been studied so far have been local. In this paper nonlocal PT-symmetric separable potentials of the form $V(x,y)=iε[U(x)U(y)-U(-x)U(-y)]$, where $U(x)$ is real, are examined. Two specific models are examined. In each case it is shown that there is a parametric region of the coupling strength $ε$ for which the PT symmetry of the Hamiltonian is unbroken and the bound-state energies are real. The critical values of $ε$ that bound this region are calculated.
description: 10 pages, 3 figures
Modelling and numerical approximation of a 2.5D set of equations for mesoscale atmospheric processes
Creators: name: Kalise, Dante
name: Lie, Ivar
Publisher: name: arXiv
Year: 2011
Subjects: subject: Numerical Analysis (math.NA)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: The set of 3D inviscid primitive equations for the atmosphere is dimensionally reduced by a Discontinuous Galerkin discretization in one horizontal direction. The resulting model is a 2D system of balance laws where with a source term depending on the layering procedure and the choice of coupling fluxes, which is established in terms of upwind considerations. The "2.5D" system is discretized via a WENO-TVD scheme based in a flux limiter centered approach. We study four tests cases related to atmospheric phenomena to analyze the physical validity of the model.
On Euclidean designs and the potential energy
Creators: name: Miezaki, Tsuyoshi
name: Tagami, Makoto
Publisher: name: arXiv
Year: 2011
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05B30, 90C05, 31C20

description: We study Euclidean designs from the viewpoint of the potential energy. For a finite set in Euclidean space, We formulate a linear programming bound for the potential energy by applying harmonic analysis on a sphere. We also introduce the concept of strong Euclidean designs from the viewpoint of the linear programming bound, and we give a Fisher type inequality for strong Euclidean designs. A finite set on Euclidean space is called a Euclidean a-code if any distinct two points in the set are separated at least by a. As a corollary of the linear programming bound, we give a method to determine an upper bound on the cardinalities of Euclidean a-codes on concentric spheres of given radii. Similarly we also give a method to determine a lower bound on the cardinalities of Euclidean t-designs as an analogue of the linear programming bound.
description: 14 pages
Kaiser Friedrich II. als Herrscherpersönlichkeit
Creators: name: Lückerath, Carl August
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2020

description: -
description: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Bd. 42 Nr. 4 (2001): Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
The topological system with a twisting edge band: position-dependent Hall resistance
Creators: name: Liu, Xuele
name: Sun, Qing-feng
name: Xie, X. C.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study a $ν=1$ topological system with one twisting edge-state band and one normal edge-state band. For the twisting edge-state band, Fermi energy goes through the band three times, thus, having three edge states on one side of the sample; while the normal edge band contributes only one edge state on the other side of the sample. In such a system, we show that it consists of both topologically protected and unprotected edge states, and as a consequence, its Hall resistance depends on the location where the Hall measurement is done even for a translationally invariant system. This unique property is absent in a normal topological insulator.
Time-averaged MSD of Brownian motion
Creators: name: Andreanov, Alexei
name: Grebenkov, Denis
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the statistical properties of the time-averaged mean-square displacements (TAMSD). This is a standard non-local quadratic functional for inferring the diffusion coefficient from an individual random trajectory of a diffusing tracer in single-particle tracking experiments. For Brownian motion, we derive an exact formula for the Laplace transform of the probability density of the TAMSD by mapping the original problem onto chains of coupled harmonic oscillators. From this formula, we deduce the first four cumulant moments of the TAMSD, the asymptotic behavior of the probability density and its accurate approximation by a generalized Gamma distribution.
Alpha Representation For Active Portfolio Management and High Frequency Trading In Seemingly Efficient Markets
Creators: name: Charles-Cadogan, Godfrey
Publisher: name: arXiv
Year: 2012
Subjects: subject: Risk Management (q-fin.RM)
subject: Probability (math.PR)
subject: Statistics Theory (math.ST)
subject: Portfolio Management (q-fin.PM)
subject: Applications (stat.AP)
subject: FOS: Economics and business
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 91G10, 91G70

description: We introduce a trade strategy representation theorem for performance measurement and portable alpha in high frequency trading, by embedding a robust trading algorithm that describe portfolio manager market timing behavior, in a canonical multifactor asset pricing model. First, we present a spectral test for market timing based on behavioral transformation of the hedge factors design matrix. Second, we find that the typical trade strategy process is a local martingale with a background driving Brownian bridge that mimics portfolio manager price reversal strategies. Third, we show that equilibrium asset pricing models like the CAPM exists on a set with P-measure zero. So that excess returns, i.e. positive alpha, relative to a benchmark index is robust to no arbitrage pricing in turbulent capital markets. Fourth, the path properties of alpha are such that it is positive between suitably chosen stopping times for trading. Fifth, we demonstrate how, and why, econometric tests of portfolio performance tend to under report positive alpha.
description: 15 pages, 0 figures
Active optics Shack-Hartmann sensor: using spot sizes to measure the seeing at the focal plane of a telescope
Creators: name: Martinez, P.
name: Kolb, J.
name: Sarazin, M.
name: Navarrete, J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Real-time seeing estimation at the focus of a telescope is nowadays strongly emphasized as this knowledge virtually drives the dimensioning of adaptive optics systems and instrument operational aspects. In this context we study the interest of using active optics Shack-Hartmann (AOSH) sensor images to provide accurate estimate of the seeing. The AOSH practically delivers long exposure spot PSFs -- at the critical location of the telescope focus -- being directly related to the atmospheric seeing in the line of sight. Although AOSH sensors are not specified to measure spot sizes but slopes, we show that accurate seeing estimation from AOSH images can be obtained with a dedicated algorithm. The sensitivity and comparison of two algorithms to various parameters is analyzed in a systematic way, demonstrating that efficient estimation of the seeing can be obtained by adequate means.
description: MNRAS 2012 accepted
[Annoncen]
Creators: name: Die Redaktion
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2020

description: -
description: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Bd. 43 Nr. 1 (2002): Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Brandschutzkonzepte und Brandschutzingenieurwesen: zur Zukunft des modernen Brandschutzes! Ulrich Schneider, Ingenieurmethoden im Baulichen Brandschutz
Creators: name: Kabat, Sylwester
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2020

description: Rezension zu: Brandschutzkonzepte und Brandschutzingenieurwesen: zur Zukunft des modernen Brandschutzes! Ulrich Schneider, Ingenieurmethoden im Baulichen Brandschutz, Mit Beiträgen von: U. Max, F. Mehl, K.-D. Wathling, in Zusammenarbeit mit: Verein zur Förderung von Ingenieurmethoden im Brandschutz (VIB), Arbeitsgemeinschaft Brandsicherheit (AGB). 433 Seiten, 79 Bilder, 83 Tabellen, 177 Literaturstellen. Renningen: expert-Verlag 2001 (Kontakt & Studium, Bd. 531, TA Esslingen, Hrsg.: W. J. Bartz/E. Wippler). ISBN 3-8169-1948-0.
description: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Bd. 43 Nr. 4 (2002): Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
On Fractional Quantum Hall Solitons in ABJM-like Theory
Creators: name: Belhaj, Adil
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Using D-brane physics, we study fractional quantum Hall solitons (FQHS) in ABJM-like theory in terms of type IIA dual geometries. In particular, we discuss a class of Chern-Simons (CS) quivers describing FQHS sytems at low energy. These CS quivers come from R-R gauge fields interacting with D6-branes wrapped on 4-cycles, which reside within a blown up CP^3 projective space. Based on the CS quiver method and mimicking the construction of del Pezzo surfaces in terms of CP^2, we first give a model which corresponds to a single layer model of FQHS system, then we propose a multi-layer system generalizing the doubled CS field theory, which is used in the study of topological defect in graphene.
description: 10 pages, Latex
title: Structural Investigation of the DedA Protein YqjA
Creators: name: Streather, Bree
Publisher: name: University of Kent
Year: 2022

description: As the threat of antimicrobial resistance (AMR) intensifies, resulting in a growing number of deaths worldwide every year, there is an increasing pressure to find solutions. One possibility is to reverse the resistance by determining its cause. DedA proteins are membrane transporters and have been shown to confer resistance to a variety of antibiotics in many different pathogenic bacteria. This project focussed on the structure of the DedA protein YqjA from E. coli which will aid in future drug design to block the functioning of this protein. The 3D structure was predicted via the EVcouplings algorithm which was then biochemically tested using Substituted Cysteine Accessibility Methods (SCAM). This uses single cysteine mutants of YqjA and, through treating the cells with various thiol-binding reagents, the location of the Cys residue in relation to the membrane can be determined. 8 out of 12 results from the SCAM analysis agreed with the predicted EVfold model showing it to be a reliable prediction of the 3D structure of YqjA. However, a rescue assay that was carried out to assess the functionality of the cysteine mutants needs to be repeated in order to have full confidence in the accuracy of the SCAM data.
Cubic neutrons
Creators: name: Llanes-Estrada, Felipe J.
name: Navarro, Gaspar Moreno
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The neutron is largely spherical and incompressible in atomic nuclei. These two properties are however challenged in the extreme pressure environment of a neutron star. Our variational computation within the Cornell model of Coulomb gauge QCD shows that the neutron (and also the Delta-3/2 baryon) can adopt cubic symmetry at an energy cost of about 150 MeV. Balancing this with the free energy gained by tighter neutron packing, we expose the possible softening of the equation of state of neutron matter.
description: 3 pages, 9 figures
Photoionization profiles of metal clusters and the Fowler formula
Creators: name: Prem, Abhinav
name: Kresin, Vitaly V.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Metal cluster ionization potentials are important characteristics of these "artificial atoms," but extracting these quantities from cluster photoabsorption spectra, especially in the presence of thermal smearing, remains a big challenge. Here we demonstrate that the classic Fowler theory of surface photoemission does an excellent job of fitting the photoabsorption profile shapes of neutral In_{n=3-34} clusters [Wucher et al., New J. Phys. 10, 103007 (2008)]. The deduced ionization potentials extrapolate precisely to the bulk work function, and the internal cluster temperatures are in close agreement with values expected for an ensemble of freely evaporating clusters. Supplementing an earlier application to potassium clusters, these results suggest that the Fowler formalism, which is straightforward and physical, may be of significant utility in metal cluster spectroscopy. It is hoped also that the results will encourage a comprehensive theoretical analysis of the applicability of bulk-derived models to cluster photoionization behavior, and of the transition from atomic and molecular-type to surface-type photoemission.
Hourglass dispersion in overdoped single-layered manganites
Creators: name: Ulbrich, H.
name: Steffens, P.
name: Lamago, D.
name: Sidis, Y.
name: Braden, M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The excitation spectrum in single-layered Nd(0.33)Sr(1.67)MnO4 and Pr(0.33)Ca(1.67)MnO4 resembles the hourglass-like excitation dispersion seen in various cuprates superconductors. However, our spin-wave dispersion in Pr(0.33)Ca(1.67)MnO4, which exhibits a large correlation length of the magnetic order, showing outward-dispersing branches starting from the incommensurate zone-centres. The magnetic correlation length is identified as the decisive parameter to suppress this branches and generating an correct hourglass shape.
IceCube Non-detection of GRBs: Constraints on the Fireball Properties
Creators: name: He, Hao-Ning
name: Liu, Ruo-Yu
name: Wang, Xiang-Yu
name: Nagataki, Shigehiro
name: Murase, Kohta
name: Dai, Zi-Gao
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The increasingly deep limit on the neutrino emission from gamma-ray bursts (GRBs) with IceCube observations has reached the level that could put useful constraints on the fireball properties. We first present a revised analytic calculation of the neutrino flux, which predicts a flux an order of magnitude lower than that obtained by the IceCube collaboration. For benchmark model parameters (e.g. the bulk Lorentz factor is Γ=10^{2.5}, the observed variability time for long GRBs is t_v=0.01 s and the ratio between the energy in accelerated protons and in radiation is η_p=10 for every burst) in the standard internal shock scenario, the predicted neutrino flux from 215 bursts during the period of the 40-string and 59-string configurations is found to be a factor of ~3 below the IceCube sensitivity. However, if we accept the recently found inherent relation between the bulk Lorentz factor and burst energy, the expected neutrino flux increases significantly and the spectral peak shifts to lower energy. In this case, the non-detection then implies that the baryon loading ratio should be η_p<10 if the variability time of long GRBs is fixed to t_v=0.01 s. Instead, if we relax the standard internal shock scenario but keep to assume η_p=10, the non-detection constrains the dissipation radius to be R>4x10^{12} cm assuming the same dissipation radius for every burst and benchmark parameters for fireballs. We also calculate the diffuse neutrino flux from GRBs for different luminosity functions existing in the literature. The expected flux exceeds the current IceCube limit for some luminosity functions, and thus the non-detection constrains η_p<10 in such cases when the variability time of long GRBs is fixed to t_v=0.01 s.
description: Accepted by ApJ, 14 pages, 5 figures, typos corrected, scheduled for the June 10, 2012, v752 - 1 issue
Filling in CMB map missing data using constrained Gaussian realizations
Creators: name: Bucher, Martin
name: Louis, Thibaut
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: For analyzing maps of the cosmic microwave background sky, it is necessary to mask out the region around the galactic equator where the parasitic foreground emission is strongest as well as the brightest compact sources. Since many of the analyses of the data, particularly those searching for non-Gaussianity of a primordial origin, are most straightforwardly carried out on full-sky maps, it is of great interest to develop efficient algorithms for filling in the missing information in a plausible way. We explore practical algorithms for filling in based on constrained Gaussian realizations. Although carrying out such realizations is in principle straightforward, for finely pixelized maps as will be required for the Planck analysis a direct brute force method is not numerically tractable. We present some concrete solutions to this problem, both on a spatially flat sky with periodic boundary conditions and on the pixelized sphere. One approach is to solve the linear system with an appropriately preconditioned conjugate gradient method. While this approach was successfully implemented on a rectangular domain with periodic boundary conditions and worked even for very wide masked regions, we found that the method failed on the pixelized sphere for reasons that we explain here. We present an approach that works for full-sky pixelized maps on the sphere involving a kernel-based multi-resolution Laplace solver followed by a series of conjugate gradient corrections near the boundary of the mask.
description: 22 pages, 14 figures, minor changes, a few missing references added
BSK-WBSN: Biometric Symmetric Keys to Secure Wireless Body Sensors Networks
Creators: name: Mesmoudi, Samira
name: Feham, Mohammed
Publisher: name: arXiv
Year: 2011
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: The Wireless Sensors Network (WSN) is an emergent technology resulting from progress of various fields. Many applications of networks WSN are born. One of the applications which have an operational effectiveness relates to the field of health and allows a medical remote support. Miniature wireless sensors, strategically placed on the human body, create a Wireless Body Sensor Network (WBSN) which allows supervising various essential biological signals (rate of heartbeat, pressure, etc). The sensitivity of medical information requires mechanisms of safety. This performance constitutes a challenge for WBSN because of their limitation in resources energy and data-processing. In this paper we propose a new approach to symmetric cryptographic key establishment, based on biometrics physiology. This approach takes into account WBSN constraints and its topology.
description: 12 pages; International Journal of Network Security & Its Applications (IJNSA), Vol.3, No.5, Sep 2011
Collaborative/participative curriculum development in an adult ESL setting
Creators: name: Simpson, Ian Edward
Publisher: name: University of Calgary
Year: 1997
Subjects: subject: LB2806.15 .S56 1997
subject: Additonal Copy: 370 EDC 1997 SIM - Doucette
subject: Teacher participation in curriculum planning - Alberta - Case studies
subject: Curriculum planning - Alberta - Case studies
subject: Adult education - Alberta - Case studies
subject: English language - Study and teaching as a second language - Alberta - Case studies

description: Bibliography: p. 144-152.
Local magnetic anisotropy in BaFe$_2$As$_2$: a polarized inelastic neutron scattering study
Creators: name: Qureshi, N.
name: Steffens, P.
name: Wurmehl, S.
name: Aswartham, S.
name: Büchner, B.
name: Braden, M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The anisotropy of the magnetic excitations in BaFe$_2$As$_2$ was studied by polarized inelastic neutron scattering which allows one to separate the components of the magnetic response. Despite the in-plane orientation of the static ordered moment we find the in-plane polarized magnons to exhibit a larger gap than the out-of-plane polarized ones indicating very strong single-ion anisotropy within the layers. It costs more energy to rotate a spin within the orthorhombic {\it a-b} plane than rotating it perpendicular to the FeAs layers.
description: 4 pages, 4 figures