cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Minimally cross-entropic conditional density : a generalization of the GARCH model
Creators: name: Scherer, Matthias
Publisher: name: Karlsruhe
Year: 2011
Subjects: Time series analysis
autoregression
GARCH
minimum cross-entropy

description: The stylized fact of time-varying volatility in financial series is commonly accepted amongst scholars as well as practitioners. The GARCH model has been exceptionally successful in this area. Our approach, the minimally cross-entropic conditional density (MCECD) model, is a generalization of GARCH(1,1) which can cope with conditional skewness and kurtosis. It is so-named because the parameter updating method is based on cross-entropy minimization rather than autoregression.
New Competencies for Physical Education Teachers: Software for Movement Analysis
Creators: name: Monica, Stanescu; Marius, Stoicescu
Publisher: name: Editura Universitara
Year: 2012
Subjects: subject: 0 Social sciences
subject: 37 Education
subject: 371 Instructional design
subject: 004:37 Elearning

description: This paper aims to highlight the professional opinion on whether teachers use ICT in teaching and the characteristics of one of the main applications of ICT in education in physical education and sports, namely, to support the evaluation of motor actions.
Beltrami-like fields created by baroclinic effect in two-fluid plasmas
Creators: name: Saleem, Hamid
name: Yoshida, Zensho
Publisher: name: arXiv
Year: 2011
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: A theory of two-dimensional plasma evolution with Beltrami-like flow and field due to baroclinic effect has been presented. Particular solution of the nonlinear two-fluid equations is obtained. This simple model can explain the generation of magnetic field without assuming the presence of a seed in the system. Coupled field and flow naturally grow together. The theory has been applied to estimate B-field in laser-induced plasmas and the result is in good agreement with experimental values.
description: 3 pages
Ein neues adaptives Verfahren zur hochdynamischen Stromregelung
Creators: name: Becker, Frank
Publisher: name: Karlsruhe
Year: 2011
Subjects: Stromregelung
hochdynamisch
adaptiv

description: In dieser Arbeit wird ein neuer Ansatz für die Stromregelung, basierend auf
der Idee der Streckenidentifikation über die Stromsteigungen, realisiert. Ziel ist
es, die Verwendung eines klassischen Reglers, wie z.B. eines PI- oder Dead-
Beat-Reglers, überflüssig zu machen. Statt dessen soll die Information über das
Streckenverhalten, die durch die Bestimmung der Stromsteigungen ermittelt
wird, direkt für die Regelung des Maschinenstroms eingesetzt werden.
Additional file 5 of Inferring directional relationships in microbial communities using signed Bayesian networks
Creators: name: Musfiqur Sazal
name: Kalai Mathee
name: Ruiz-Perez, Daniel
name: Cickovski, Trevor
name: Giri Narasimhan
Publisher: name: figshare
Year: 2020
Subjects: subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer

description: Additional file 5 sBN of Supragingival plaque
Elucidation of AR impact on the paternally expressed Gene 10 (PEG10) in Enzalutamide-resistant prostate cancer
Creators: name: Kim, Soojin
Publisher: name: University of British Columbia
Year: 2018

description: Despite advances in therapeutics, castration resistant prostate cancer (CRPC) continues to be a major problem due to ongoing androgen receptor (AR) activity driving disease progression. This lack of control of AR inhibition in drug resistant CRPC may reflect a shift in the natural history of classically “AR-driven” disease to a “AR non-driven” phenotype, characterized by low circulating levels of prostate specific antigen (PSA) despite high metastatic burden in soft tissues. This hypothesis is supported by recent data from the Stand up to Cancer-Prostate Cancer Foundation East Coast and West Coast Dream Team (SU2C) indicating up to 27% of CRPC patients resistant to AR pathway inhibitors, including ENZ or ABI, develop an AR non-driven disease. Notably, our pre-clinical model of ENZ-R also reflects the clinical distribution of disease heterogeneity. We have shown that while 75% of ENZ-R tumors recur in vivo with AR re-activation and rising PSA, 25% of tumors show downregulation of canonical AR target genes and maintain an AR non-driven phenotype. Analysis of ENZ-R cells using RNAseq revealed that ENZ-R cells with downregulation of canonical pathway and NE phenotype up-regulate the paternally expressed gene 10 (PEG10). PEG10 is a retrotransposon-derived gene that was recently reported to be upregulated in neuroendocrine prostate cancer (NEPC) and regulates cell survival and metastasis in NEPC. However the underlying mechanisms by which PEG10 is regulated in ENZ-R and NEPC remain unexplored. We found that AR negatively regulates PEG10 and that activated AR directly binds to the PEG10 promoter and suppresses its expression while ENZ inhibits AR activity which allows for the NE differentiation to commence in CRPC and ENZ-R cell lines. In the next step, we investigated whether PEG10 is a potential target of NEPC progression in CRPC and ENZ-R cell lines. Through our experiments, we demonstrated that targeting PEG10 reduces cell proliferation in vitro, while knocking down PEG10 in vivo attenuates tumor growth. The results justify PEG10 as potential therapeutic target for NEPC.
The quality of assessing in the university system of learning
Creators: name: Daliana-Ecaterina, Tascovici; Robert Gabriel, Dragomir; Eliza Consuela, Isbasoiu
Publisher: name: Editura Universitara
Year: 2012
Subjects: subject: 0 Social sciences
subject: 37 Education
subject: 371 Instructional design
subject: 004:37 Elearning

description: The present paper aim is to present several aspects connected to the quality of the assessing in the university system of learning.
Standardization of Shipping Containers for Fresh Fruits and Vegetables
Creators: name: Stokes, Donald R.
name: Woodley, Glenn W.
name: Stokes, Donald R.
name: Woodley, Glenn W.
Publisher: name: Unknown
Year: 1974
Subjects: subject: Crop Production/Industries
subject: International Relations/Trade
subject: Marketing
subject: FOS: Economics and business
subject: Research and Development/Tech Change/Emerging Technologies
subject: Research Methods/ Statistical Methods

description: Excerpt from the report: The purpose of this study was to (1) explore a way of collecting data on the use of different shipping containers for marketing fresh fruits and vegetables, (2) obtain some information on the extent of proliferation of various size containers in use for fresh fruits and vegetables, (3) determine how well presently used containers fit certain size pallets, and (4) compare the average base dimensions of U.S. containers with those recommended by the Organization for Economic Cooperation and Development (OECD) as a guide toward developing standard size containers.
Phase diagram of hot and dense QCD constrained by the Statistical Model
Creators: name: Fukushima, Kenji
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We propose a prescription to constrain the chiral effective model approach to the QCD phase diagram using the thermal Statistical Model, which is a description consistent with the experimental data at the freeze-out. In the transition region where thermal quantities of hadrons blow up, deconfined quarks and gluons should smoothly take over the degrees of freedom from hadrons in the Statistical Model. We use the Polyakov-loop coupled Nambu--Jona-Lasinio (PNJL) model as an effective description in the quark side. We require that the validity regions of these descriptions should have an overlap on the phase diagram, which constrains model uncertainty. Our results favor a phase diagram with the chiral phase transition located at slightly higher temperature than deconfinement.
description: 5 pages, 3 figures; all figures updated, results and conclusions not modified
Criticisms on and Comparison of Experimental Channel Backscattering Extraction Methods
Creators: name: Giusi, Gino
name: Crupi, Felice
name: Magnone, Paolo
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In this paper we critically review and compare experimental methods, based on the Lundstrom model, to extract the channel backscattering ratio in nano MOSFETs. Basically two experimental methods are currently used, the most common of them is based on the measurement of the saturation drain current at different temperatures. We show that this method is affected by very poor assumptions and that the extracted backscattering ratio strongly underestimates its actual value posing particular attention to the backscattering actually extracted in nano devices. The second method is based on the direct measurement of the inversion charge by CV characteristics and gets closer to the physics of the backscattering model. We show, through measurements in high mobility p-germanium devices, how the temperature based method gives the same result of the CV based method once that its approximations are removed. Moreover we show that the CV based method uses a number of approximations which are partially inconsistent with the model. In particular we show, with the aid of 2D quantum corrected device simulations, that the value of the barrier lowering obtained through the CV based method is totally inconsistent with the barrier lowering used to correct the inversion charge and that the extracted saturation inversion charge is underestimated.
Inhomogeneous Pseudogap Phenomenon in the BCS-BEC Crossover Regime of a Trapped Superfluid Fermi Gas
Creators: name: Watanabe, Ryota
name: Tsuchiya, Shunji
name: Ohashi, Yoji
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We investigate pseudogap phenomena in the unitarity limit of a trapped superfluid Fermi gas. Including effect of strong pairing fluctuations within a $T$-matrix approximation, as well as effects of a harmonic trap within the local density approximation (LDA), we calculate the local superfluid density of states below the superfluid phase transition temperature $T_{\rm c}$. We show that the spatial region where single-particle excitations are dominated by the pseudogap may still exist even below $T_{\rm c}$, due to inhomogeneous pairing fluctuations caused by the trap potential. From the temperature dependence of the pseudogapped density of states, we identify the pseudogap regime of the unitarity Fermi gas with respect to the temperature and spatial position. We also show that the combined $T$-matrix theory with the LDA can quantitatively explain the local pressure which was recently observed in the unitarity limit of a $^6$Li Fermi gas.
description: 4 pages, 2 figures, proceedings of 26th International Conference on Low Temperature Physics (LT26)
Photoproduction of K Sigma(1385) from the nucleon
Creators: name: Oh, Yongseok
Publisher: name: arXiv
Year: 2010
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The reactions of $K Σ(1385)$ photoproduction, i.e., $γp \to K^+ Σ^0(1385)$ and $γn \to K^+ Σ^-(1385)$, are investigated in the resonance energy region for studying the role of the nucleon and $Δ$ resonances of masses around 2 GeV. The Lagrangians for describing the decays of these resonances into the $K Σ(1385)$ channel are constructed and the decay amplitudes are obtained, which allows us to determine the coupling constants using the predictions of quark models or the data listed by the Particle Data Group. The resulting cross sections are compared to the data from the Thomas Jefferson National Accelerator Facility and the SPring-8, which indicates nontrivial contributions from the two-star-rated resonances in the Particle Data Group as well as from some missing resonances predicted by a quark model.
description: 4 pages, 3 figures, talk given at 12th International Conference on Meson-Nucleon Physics and the Structure of the Nucleon (MENU 2010), Williamsburg, Virginia, 31 May - 4 Jun 2010
Parametrization of PMNS matrix based on dodeca-symmetry
Creators: name: Kim, Jihn E.
name: Seo, Min-Seok
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The dodeca symmetry is designed to obtain the Cabibbo angle $θ_C^{\rm CKM}$ approximately $15^{\rm o}$ and the (11) element of $\Vp$ as $\cos 30^{\rm o}$, leading to $θ_1^{\rm PMNS}+θ_C^{\rm CKM}\simeq 45^{\rm o}$. This leading order dodeca symmetric $\Vp$ is corrected by small parameters, especially as an expansion in terms of a small parameter $β$. Neglecting two Majorana phases, the expression of $\Vp$ contains four parameters: a small $β$, and three $\Od(1)$ parameters $A,B,$ and $δ$. From the neutrino oscillation data, we present two parametrizations and estimate their $β$'s.
description: 7 pages
AC Josephson Effect Induced by Spin Injection
Creators: name: Mal'shukov, A. G.
name: Brataas, Arne
Publisher: name: arXiv
Year: 2010
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Pure spin currents can be injected and detected in conductors via ferromagnetic contacts. We consider the case when the conductors become superconducting. A DC pure spin current flowing in one superconducting wire towards another superconductor via a ferromagnet contact induces AC voltage oscillations caused by Josephson tunneling of condensate electrons. Quasiparticles simultaneously counterflow resulting in zero total electric current through the contact. The Josephson oscillations can be accompanied by Carlson-Goldman collective modes leading to a resonance in the voltage oscillation amplitude.
description: 5 pages
Models and monitoring designs for spatio-temporal climate data fields
Creators: name: Casquilho Resende, Camila Maria
Publisher: name: University of British Columbia
Year: 2016

description: In this thesis, we describe how appropriately modelling the spatio-temporal mean surface can help resolve complex patterns of nonstationarity and improve spatial prediction. Nonstationary fields are common in environmental science applications, and even more so in regions with complex terrain. Our analyses focus on the Pacific Northwest, a region where rapid changes and localized weather are very common, and where the terrain plays an important role in separating often radically different climate and weather regimes. To this end, we introduce two comparable strategies for spatial prediction. The first is based on a Bayesian spatial prediction method, where an exploratory analysis was performed in order to better understand the localized weather regimes. The other is based on tackling the anomalies of expected climate in the Pacific Northwest region, based on the average values of temperature computed over a 30-year range obtained through a climate analysis system. Secondly, we focus on one of the recent challenges in spatial statistics applications, the data fusion problem. There has been an increased need for combining information from multiple sources that may be on different spatial scales. Ensemble modelling is referred to as a statistical post-processing technique based on combining multiple computer model outputs in a statistical model with the goal of obtaining probabilistic forecasts. We give an overview of some ensemble modelling strategies, by combining observed temperature measurements with outputs from an ensemble of deterministic climate models. We also provide a comparison between the Bayesian model averaging approach and a dynamic Bayesian ensemble strategy for forecasting. Finally, we introduce a novel strategy for the design of monitoring network, where the goal is to select a high-quality yet diverse set of locations. The idea of spatial repulsion is brought to this context via the theory of determinantal point processes. Our design strategy is not only able to yield spatially-balanced designs, but it also has the ability to assess similarity between the potential locations should there be extra sources of information related to the underlying process of interest. We explore its relationship to existing design methods, such as the entropy-based and space-filling designs.
Demand for Farm-Raised Channel Catfish in Supermarkets: Analysis of a Selected Market
Creators: name: Raulerson, Richard C.
name: Trotter, Warren K.
name: Raulerson, Richard C.
name: Trotter, Warren K.
Publisher: name: Unknown
Year: 1973
Subjects: subject: Demand and Price Analysis
subject: Food Consumption/Nutrition/Food Safety
subject: Livestock Production/Industries
subject: Marketing
subject: FOS: Economics and business
subject: Research Methods/ Statistical Methods
subject: Catfish
subject: demand
subject: market potential
subject: grocery stores
subject: Georgia

description: In March and April 1972, a controlled Latin square market experiment was performed in six Atlanta, Ga., grocery stores to determine the demand for fresh channel catfish in supermarkets. Prices ranging from $0.79 to $1.29 per pound in 10-cent increments were used to elicit quantity responses. These responses were used to estimate linear, log-linear, and log-log forms of a demand curve. The resulting demand curves indicate an elastic demand for catfish within the experimental price range. Only about one of every 150 customers purchased catfish at the current price of about $1.19 per pound. Results of a consumer questionnaire indicate the possibility of expanding the market by introducing more convenient product forms at a reasonable cost to the consumer.
Additional file 1 of Genome-wide association study of leaf rust resistance in Russian spring wheat varieties
Creators: name: Leonova, Irina N.
name: Skolotneva, Ekaterina S.
name: Salina, Elena A.
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Table S1. Meteorological conditions for the growing seasons of 2016, 2017 and 2018 (Novosibirskaya oblast, weather station 54.54° N, 82.57° E).
Additional file 2 of Genome-wide association study of leaf rust resistance in Russian spring wheat varieties
Creators: name: Leonova, Irina N.
name: Skolotneva, Ekaterina S.
name: Salina, Elena A.
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2: Figure S1. A scatter plot of PCA of the spring wheat varieties obtained on the base of SNP genotyping.
The Time-Reversal- and Parity-Violating Nuclear Potential in Chiral Effective Theory
Creators: name: Maekawa, C. M.
name: Mereghetti, E.
name: de Vries, J.
name: van Kolck, U.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We derive the parity- and time-reversal-violating nuclear interactions stemming from the QCD theta term and quark/gluon operators of effective dimension 6: quark electric dipole moments, quark and gluon chromo-electric dipole moments, and two four-quark operators. We work in the framework of two-flavor chiral perturbation theory, where a systematic expansion is possible. The different chiral-transformation properties of the sources of time-reversal violation lead to different hadronic interactions. For all sources considered the leading-order potential involves known one-pion exchange, but its specific form and the relative importance of short-range interactions depend on the source. For the theta term, the leading potential is solely given by one-pion exchange, which does not contribute to the deuteron electric dipole moment. In subleading order, a new two-pion-exchange potential is obtained. Its short-range component is indistinguishable from one of two undetermined contact interactions that appear at the same order and represent effects of heavier mesons and other short-range QCD dynamics. One-pion-exchange corrections at this order are discussed as well.
description: 39 pages, 8 figures
Additional file 3 of Genome-wide association study of leaf rust resistance in Russian spring wheat varieties
Creators: name: Leonova, Irina N.
name: Skolotneva, Ekaterina S.
name: Salina, Elena A.
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 3: Table S2. Number of SNP markers with localizations in the A, B and D genomes used for genotyping wheat varieties.
Uncovering Multiple CP-Nonconserving Mechanisms of $\betabeta$-Decay
Creators: name: Faessler, Amand
name: Meroni, Aurora
name: Petcov, Serguey T.
name: Simkovic, Fedor
name: Vergados, John
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider the possibility of several different mechanisms contributing to the $\betabeta$-decay amplitude in the general case of CP nonconservation: light Majorana neutrino exchange, heavy left-handed (LH) and heavy right-handed (RH) Majorana neutrino exchanges, lepton charge non-conserving couplings in SUSY theories with R-parity breaking. If the $\betabeta$-decay is induced by, e.g., two "non-interfering" mechanisms, one can determine $|η_i|^2$ and $|η_j|^2$, $η_i$ and $η_j$ being the two fundamental parameters characterising these mechanisms, from data on the half-lives of two nuclear isotopes. In the case when two "interfering" mechanisms are responsible for the $\betabeta$-decay, $|η_i|^2$ and $|η_j|^2$ and the interference term can be uniquely determined, in principle, from data on the half-lives of three nuclei. Given the half-life of one isotope, the "positivity conditions" $|η_i|^2\geq 0$ and $|η_j|^2\geq 0$ lead to stringent constraints on the half-lives of the other $\betabeta$-decaying isotopes. These conditions, as well as the conditions for constructive (destructive) interference are derived and their implications are analysed in two specific cases. The method considered by us can be generalised to the case of more than two $\betabeta$-decay mechanisms. It allows to treat the cases of CP conserving and CP nonconserving couplings generating the $\betabeta$-decay in a unique way.
description: 29 pages, LATEX file, includes 13 figures and 6 tables. Results unchanged, typos and eq. (10) corrected, a discussion, one acknowledgment and references added
Fourier analysis of non-Blazhko ab-type RR Lyrae stars observed with the Kepler space telescope
Creators: name: Nemec, J. M.
name: Smolec, R.
name: Benko, J. M.
name: Moskalik, P.
name: Kolenberg, K.
name: Szabo, R.
name: Kurtz, D. W.
name: Bryson, S.
name: Guggenberger, E.
name: Chadid, M.
name: Jeon, Y. -B.
name: Kunder, A.
name: Layden, A. C.
name: Kinemuchi, K.
name: Kiss, L. L.
name: Poretti, E.
name: Christensen-Dalsgaard, J.
name: Kjeldsen, H.
name: Caldwell, D.
name: Ripepi, V.
name: Derekas, A.
name: Nuspl, J.
name: Mullally, F.
name: Thompson, S. E.
name: Borucki, W. J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Nineteen of the ~40 RR Lyr stars in the Kepler field have been identified as candidate non-Blazhko (or unmodulated) stars. In this paper we present the results of Fourier decomposition of the time-series photometry of these stars acquired during the first 417 days of operation (Q0-Q5) of the Kepler telescope. Fourier parameters based on ~18400 long-cadence observations per star (and ~150000 short-cadence observations for FN Lyr and for AW Dra) are derived. None of the stars shows the recently discovered `period-doubling' effect seen in Blazhko variables; however, KIC 7021124 has been found to pulsate simultaneously in the fundamental and second overtone modes with a period ratio P2/P0 ~ 0.59305 and is similar to the double-mode star V350 Lyr. Period change rates are derived from O-C diagrams spanning, in some cases, over 100 years; these are compared with high-precision periods derived from the Kepler data alone. Extant Fourier correlations by Kovacs, Jurcsik et al. (with minor transformations from the V to the Kp passband) have been used to derive underlying physical characteristics for all the stars. This procedure seems to be validated through comparisons of the Kepler variables with galactic and LMC RR Lyr stars. The most metal-poor star in the sample is NR Lyr, with [Fe/H]=-2.3 dex; and the four most metal-rich stars have [Fe/H] ranging from -0.6 to +0.1 dex. Pulsational luminosities and masses are found to be systematically smaller than L and mass values derived from stellar evolution models, and are favoured over the evolutionary values when periods are computed with the Warsaw linear hydrodynamics code. Finally, the Fourier parameters are compared with theoretical values derived using the Warsaw non-linear convective pulsation code.
description: 35 pages, 18 figures
Longitudinal studies of disease progression, health care costs and health-related quality of life in patients with asthma
Creators: name: Chen, Wenjia
Publisher: name: University of British Columbia
Year: 2016

description: This thesis examines the burden of asthma and its determinants though a series of longitudinal observational studies. Objectives: 1) To quantify the natural history of severe asthma and the impact of early risk factors; 2) To examine the influence of socioeconomic status (SES) on excess direct medical costs of moderate-to-severe asthma and guideline-based asthma care; 3) To estimate excess costs of asthma and the economic implications of comorbidities; 4) To assess the joint influences of asthma control and comorbidity on health-related quality of life. Methods: For the first three objectives, administrative health data (for the period of 1997-2013) were obtained from British Columbia (BC) Ministry of Health, and for the last objective data were obtained from the Economic Burden of Asthma (EBA) study in BC. Various models for longitudinal data were applied for each objective. Findings: 1) Most patients (83%) with incident severe asthma transitioned to milder states after 10 years. Low SES and comorbidity at disease onset led to worse long-term prognosis. 2) Across both individual- and neighborhood-levels, there was evidence that low-SES asthma patients and/or their care providers did not follow guideline-based asthma care and subsequently incurred substantially greater excess costs of asthma. 3) Excess costs in patients with asthma were $1187/year (95%CI $1130─$1243) overall, with comorbidity-attributable costs five times higher than asthma-attributable costs, all of which greatly increased with age. 4) Changes in asthma control had a greater effect on disease-specific (AQ5D) than generic (EQ5D) utilities, whereas changes in comorbidity burden had a larger impact on EQ5D than AQ5D utilities. Conclusions: With several novel methodology techniques, this thesis provided evidence for the first-time on the long-term trajectory and burden of asthma. Projection of cost and effectiveness of decisions and policies in asthma care requires a robust understanding of the natural history of asthma, effect of risk factors on this trajectory, and estimates of costs and health-related quality of life associated with asthma. This thesis provides new evidence on all such parameters. These findings have direct relevance to estimating cost-effectiveness of health technologies in asthma and can result in more informed decision-making in health policy and clinical practice.
Water-ice driven activity on Main-Belt Comet P/2010 A2 (LINEAR) ?
Creators: name: Moreno, F.
name: Licandro, J.
name: Tozzi, G. -P.
name: Ortiz, J. L.
name: Cabrera-Lavers, A.
name: Augusteijn, T.
name: Liimets, T.
name: Lindberg, J. E.
name: Pursimo, T.
name: Rodriguez-Gil, P.
name: Vaduvescu, O.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The dust ejecta of Main-Belt Comet P/2010 A2 (LINEAR) have been observed with several telescopes at the at the Observatorio del Roque de los Muchachos on La Palma, Spain. Application of an inverse dust tail Monte Carlo method to the images of the dust ejecta from the object indicates that a sustained, likely water-ice driven, activity over some eight months is the mechanism responsible for the formation of the observed tail. The total amount of dust released is estimated to be 5E7 kg, which represents about 0.3% of the nucleus mass. While the event could have been triggered by a collision, this cannot be decided from the currently available data.
description: Accepted for ApJ Letters
Chemical evolution of the Galactic bulge as traced by microlensed dwarf and subgiant stars. III. Detection of lithium in the metal-poor bulge dwarf MOA-2010-BLG-285S
Creators: name: Bensby, T.
name: Asplund, M.
name: Johnson, J. A.
name: Feltzing, S.
name: Meléndez, J.
name: Dong, S.
name: Gould, A.
name: Han, C.
name: Adén, D.
name: Lucatello, S.
name: Gal-Yam, A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Context: In order to study the evolution of Li in the Galaxy it is necessary to observe dwarf or subgiant stars. Abridged Although Li has been extensively studied in the Galactic disk and halo, to date there is only one uncertain detection of Li in an unevolved bulge star. AIMS: Our aim with this study is to provide the first clear detection of Li in the Galactic bulge, based on an analysis of a dwarf star that has largely retained its initial Li abundance. METHODS: We have performed a detailed elemental abundance analysis of the bulge dwarf star MOA-2010-BLG-285S using a high-resolution, and high signal-to-noise spectrum obtained with the UVES spectrograph at the VLT when the object was optically magnified during a gravitational microlensing event (visual magnification A~550 during observation). The lithium abundance was determined through synthetic line profile fitting of the 7Li resonance doublet line at 670.8 nm. The results have been corrected for departures from LTE. Results: MOA-2010-BLG-285S is, at [Fe/H]=-1.23, the most metal-poor dwarf star detected so far in the Galactic bulge. Its old age (12.5 Gyr) and enhanced [alpha/Fe] ratios agree well with stars in the thick disk at similar metallicity. This star represents the first unambiguous detection of Li in a metal-poor dwarf star in the Galactic bulge. We find an NLTE corrected Li abundance of log e(Li)=2.16, which is consistent with values derived for Galactic disk and halo dwarf stars at similar metallicities and temperatures. Conclusion: Our results show that there are no signs of Li enrichment or production in the Galactic bulge during its earliest phases. Observations of Li in other galaxies (omega Cen) and other components of the Galaxy suggest further that the Spite plateau is universal.
description: submitted to A&A Letters (2nd revised version)
One-loop corrections to the Nielsen-Olesen vortex: collective oscillations
Creators: name: Baacke, Jurgen
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We connect the translation modes of the instanton in the two-dimensional Abelian Higgs model with local translations of the vortex of the related model in (3+1) dimensions, the Nielsen-Olesen vortex. In this context these modes describe collective oscillations of the string. We construct the wave function of this mode and we derive, via a virial theorem, an effective action for these oscillations, which is consistent with the action constructed by Nielsen and Olesen using general arguments. We discuss some aspects of renormalization, based on a recent computation of one loop corrections to string tension of the vortex.
description: 18 pages, 1 figure
On the spontaneous collective motion of active matter
Creators: name: Wang, Shenshen
name: Wolynes, Peter G.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Cell Behavior (q-bio.CB)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Spontaneous directed motion, a hallmark of cell biology, is unusual in classical statistical physics. Here we study, using both numerical and analytical methods, organized motion in models of the cytoskeleton in which constituents are driven by energy-consuming motors. While systems driven by small-step motors are described by an effective temperature and are thus quiescent, at higher order in step size, both homogeneous and inhomogeneous, flowing and oscillating behavior emerges. Motors that respond with a negative susceptibility to imposed forces lead to an apparent negative-temperature system in which beautiful structures form resembling the asters seen in cell division.
description: 17 pages, 5 figures (2 supplementary figures)
Maximum Distance Between the Leader and the Laggard for Three Brownian Walkers
Creators: name: Majumdar, Satya N.
name: Bray, Alan J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We consider three independent Brownian walkers moving on a line. The process terminates when the left-most walker (the `Leader') meets either of the other two walkers. For arbitrary values of the diffusion constants D_1 (the Leader), D_2 and D_3 of the three walkers, we compute the probability distribution P(m|y_2,y_3) of the maximum distance m between the Leader and the current right-most particle (the `Laggard') during the process, where y_2 and y_3 are the initial distances between the leader and the other two walkers. The result has, for large m, the form P(m|y_2,y_3) \sim A(y_2,y_3) m^{-δ}, where δ= (2π-θ)/(π-θ) and θ= cos^{-1}(D_1/\sqrt{(D_1+D_2)(D_1+D_3)}. The amplitude A(y_2,y_3) is also determined exactly.
Evaluation of a specification approach for vehicle functions using activity diagrams in requirements documents
Creators: name: Beckmann, Martin
name: Vogelsang, Andreas
Publisher: name: Technische Universität Berlin
Year: 2017
Subjects: subject: 004 Datenverarbeitung; Informatik
subject: UML Activity Diagrams
subject: vehicle function specification

description: Rising complexity of systems has long been a major challenge in requirements engineering. This manifests in more extensive and harder to understand requirements documents. At the Daimler AG, an approach is applied that combines the use of activity diagrams with natural language specifications to specify vehicle functions. The approach starts with an activity diagram that is created to get an early overview. The contained information is then transferred to a textual requirements document, where details are added and the behavior is refined. While the approach aims at reducing efforts needed to understand a function’s behavior, the application of the approach itself causes new challenges on its own. By examining existing specifications at Daimler, we identified nine categories of inconsistencies and deviations between activity diagrams and their textual representations. This paper extends a previous case study on the subject by presenting additional data we acquired. Our analysis indicates that a coexistence of textual and graphical representations of models without proper tool support results in inconsistencies and deviations.
Automatische Performanzoptimierung paralleler Architekturen
Creators: name: Schaefer, Christoph A.
Publisher: name: Karlsruhe
Year: 2010
Subjects: Software-Technik
Parallelisierung
Multi-Core
Optimierung
Auto-Tuning

description: Die Parallelisierung von Programmen und deren Optimierung stellen Software-Entwickler vor große Herausforderungen. Diese Arbeit befasst sich daher mit Problemstellungen im Bereich der automatischen Performanzoptimierung (Auto-Tuning) paralleler Architekturen. Hierzu wird ein Verfahren für den Entwurf paralleler optimierbarer Architekturen vorgestellt; das Konzept eines suchbasierten Auto-Tuners rundet die Arbeit ab. Die Evaluationsergebnisse erweisen sich als äußerst vielversprechend.
Bias-reduced estimators of the Weibull tail-coefficient
Creators: name: Diebolt, J.
name: Gardes, L.
name: Girard, S.
name: Guillou, A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: In this paper, we consider the problem of the estimation of a Weibull tail-coefficient. In particular, we propose a regression model, from which we derive a bias-reduced estimator. This estimator is based on a least-squares approach. The asymptotic normality of this estimator is also established. A small simulation study is provided in order to prove its efficiency.
Simulation des Dampf-Wasserkreislaufs und der Sicherheitssysteme eines High Performance Light Water Reactors
Creators: name: Schlagenhaufer, Marc Michael
Publisher: name: Karlsruhe
Year: 2010
Subjects: HPLWR
Dampfkreislauf
Sicherheitssystem
APROS

description: Der HPLWR ist ein neues Leichtwasserreaktorkonzept der vierten Generation, das mit überkritischem Wasser bei 25 MPa gekühlt und moderiert wird. Für diesen Reaktor wurde eine Dampfkreislaufanalyse mit dem kommerziellen Systemcode APROS durchgeführt. Im Rahmen dieser Arbeit wurde neben der Voll- und Teilllastanalyse ein neues Ab- und Anfahrkonzept entwickelt. Weiterhin wurden Simulationen für die Wirksamkeit von Sicherheitssystemen durchgeführt.
A Randomized Double-Blind Placebo-Controlled Study Investigating Zinc in combination with Hydroxychloroquine (Plaquenil) compared to Zinc in combination with Quercetin and Bromelain in patients diagnosed with Lupus and/or Rheumatoid Arthritis who are symptomatic vs OTC/PCR Positive for Coronavirus Infection
Creators: name: Orzechowski, Michelle
Publisher: name: figshare
Year: 2022
Subjects: subject: 60506 Virology
subject: FOS: Biological sciences
subject: Medicine
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 110703 Autoimmunity
subject: 110322 Rheumatology and Arthritis
subject: 60199 Biochemistry and Cell Biology not elsewhere classified
subject: 60102 Bioinformatics
subject: FOS: Computer and information sciences
subject: 69999 Biological Sciences not elsewhere classified

description: A Randomized Double-Blind Placebo-Controlled Study Investigating Zinc in combination with Hydroxychloroquine (Plaquenil) compared to Zinc in combination with Quercetin and Bromelain in patients diagnosed with Lupus and/or Rheumatoid Arthritis who are symptomatic vs OTC/PCR Positive for Coronavirus Infection with a sub-study Investigating Monoclonal Antibodies in patients with diagnosed Lupus and/or Rheumatoid Arthritis who are symptomatic vs OTC/PCR positive for Coronavirus Infection in Biologic Nieve Patient's
A Randomized Double-Blind Placebo-Controlled Study Investigating Zinc in combination with Hydroxychloroquine (Plaquenil) compared to Zinc in combination with Quercetin and Bromelain in patients diagnosed with Lupus and/or Rheumatoid Arthritis who are symptomatic vs OTC/PCR Positive for Coronavirus Infection with a sub-study Investigating Monoclonal Antibodies in patients with diagnosed Lupus and/or Rheumatoid Arthritis who are symptomatic vs OTC/PCR positive for Coronavirus Infection in Biologic
Creators: name: Orzechowski, Michelle
Publisher: name: figshare
Year: 2022
Subjects: subject: 60506 Virology
subject: FOS: Biological sciences
subject: Medicine
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 110703 Autoimmunity
subject: 110322 Rheumatology and Arthritis
subject: 60199 Biochemistry and Cell Biology not elsewhere classified
subject: 60102 Bioinformatics
subject: FOS: Computer and information sciences
subject: 69999 Biological Sciences not elsewhere classified

description: A Randomized Double-Blind Placebo-Controlled Study Investigating Zinc in combination with Hydroxychloroquine (Plaquenil) compared to Zinc in combination with Quercetin and Bromelain in patients diagnosed with Lupus and/or Rheumatoid Arthritis who are symptomatic vs OTC/PCR Positive for Coronavirus Infection with a sub-study Investigating Monoclonal Antibodies in patients with diagnosed Lupus and/or Rheumatoid Arthritis who are symptomatic vs OTC/PCR positive for Coronavirus Infection in Biologic Nieve Patient's
Equivalence classes of the second order ODEs with the constant Cartan invariant
Creators: name: Kartak, Vera V.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 53A55, 34A26, 34A34, 34C14, 34C20, 34C41

description: Second order ordinary differential equations that possesses the constant invariant are investigated. Four basic types of these equations were found. For every type the complete list of nonequivalent equations is issued. As the exampes the equivalence problem for the Painleve II equation, Painleve III equation with three zero parameters, Emden equations and for some other equations is solved.
Career transition of Iranian immigrants in Canada : what helps and what hinders
Creators: name: Vojdanijahromi, Roya
Publisher: name: University of British Columbia
Year: 2016

description: Canada receives thousands of immigrants from different parts of the world every year. Employment and successful career transition is one of the biggest determinants of social and economic integration of immigrants in Canada and can significantly impact their psychological well-being. Given the large and growing number of Iranian immigrants in Canada and the paucity of research on the career transition of Iranian immigrants, the purpose of this research was to explore factors that have helped or hindered Iranian immigrants in their career transition in Canada. 11 Iranian immigrants were interviewed regarding their experience of career transition in Canada. Analysis of interviews using Enhanced Critical Incident Technique (ECIT) yielded 13 categories, which represent the important factors in the career transition of Iranian immigrants: a) Attitude, (b) Laws and Policies, (c) Networking and Making Connections, (d) Friends, (e) English Language, (f) Educational Background, (g) Professional Guidance, (h) Family, (i) Canadian Experience, (j) Level of Cultural Competence, (k) Finances, (l) Attitudes Towards Newcomers, and (m) Employer’s or Supervisor’s Work Ethics. Implications of findings in counselling and program development for immigrants and directions for future research are discussed.
Interacting lattice electrons with disorder in two dimensions: Numerical evidence for a metal-insulator transition with a universal critical conductivity
Creators: name: Chakraborty, Prabuddha B.
name: Byczuk, Krzysztof
name: Vollhardt, Dieter
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The dc-conductivity of electrons on a square lattice interacting with a local repulsion in the presence of disorder is computed by means of quantum Monte Carlo simulations. We provide evidence for the existence of a transition from an Anderson insulator to a correlated disordered metal with a universal value of the critical dc-conductivity σ_{dc,crit} = (1.18 \pm 0.06) e^{2}/h at the transition.
description: 4 pages, 3 figures, 1 table
A multi-region nonlinear age-size structured fish population model
Creators: name: Faugeras, Blaise
name: Maury, Olivier
Publisher: name: arXiv
Year: 2010
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: The goal of this paper is to present a generic multi-region nonlinear age-size structured fish population model, and to assess its mathematical well-posedness. An initial-boundary-value problem is formulated. Existence and uniqueness of a positive weak solution is proved. Eventually, a comparison result is derived: the population of all regions decreases as the mortality rate increases in at least one region.
Equivariant Chern numbers and the number of fixed points for unitary torus manifolds
Creators: name: Lü, Zhi
name: Tan, Qiangbo
Publisher: name: arXiv
Year: 2011
Subjects: subject: Algebraic Topology (math.AT)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: Let $M^{2n}$ be a unitary torus $(2n)$-manifold, i.e., a $(2n)$-dimensional oriented stable complex connected closed $T^n$-manifold having a nonempty fixed set. In this paper we show that $M$ bounds equivariantly if and only if the equivariant Chern numbers $< (c_1^{T^n})^i(c_2^{T^n})^j, [M]>=0$ for all $i, j\in {\Bbb N}$, where $c_l^{T^n}$ denotes the $l$th equivariant Chern class of $M$. As a consequence, we also show that if $M$ does not bound equivariantly then the number of fixed points is at least $\lceil{n\over2}\rceil+1$.
description: 7 pages
Is free trade free of environmental cost?
Creators: name: Jung, Munhee
Publisher: name: University of British Columbia
Year: 2016

description: The impact of international trade on the environment has been the field of focus since the 1970’s. There have been a number of empirical studies exploring the environmental consequence of free trade but the results are mixed and only a few environmental indicators have been used in place of the total environmental impact. In this study, I used combined environmental cost data which converted environmental impact indicators into US$ terms (the data is taken from World Bank database). Also, by taking advantage of panel data (observations from 60 countries over 25 years) and (two-way) fixed effects model, I attempted to reduce the threat of endogeneity problem. Most importantly, environmental impact which is filtered through the trade induced changes of economic activity was analyzed in parallel with unfiltered through effects. And the results revealed that trade openness reduces national level environmental cost rather than increasing it. Meanwhile, income related technique effect was found to be underperforming and when the full sample was split into four income groups, the income-environment relationship appeared to be closer to N-shape as opposed to the inverted U-shaped environmental kutznets curve hypothesis.