cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Multimodality in galaxy clusters from SDSS DR8: substructure and velocity distribution
Creators: name: Einasto, M.
name: Vennik, J.
name: Nurmi, P.
name: Tempel, E.
name: Ahvensalmi, A.
name: Tago, E.
name: Liivamagi, L. J.
name: Saar, E.
name: Heinamaki, P.
name: Einasto, J.
name: Martinez, V. J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We search for the presence of substructure, a non-Gaussian, asymmetrical velocity distribution of galaxies, and large peculiar velocities of the main galaxies in galaxy clusters with at least 50 member galaxies, drawn from the SDSS DR8. We employ a number of 3D, 2D, and 1D tests to analyse the distribution of galaxies in clusters: 3D normal mixture modelling, the Dressler-Shectman test, the Anderson-Darling and Shapiro-Wilk tests and others. We find the peculiar velocities of the main galaxies, and use principal component analysis to characterise our results. More than 80% of the clusters in our sample have substructure according to 3D normal mixture modelling, the Dressler-Shectman (DS) test shows substructure in about 70% of the clusters. The median value of the peculiar velocities of the main galaxies in clusters is 206 km/s (41% of the rms velocity). The velocities of galaxies in more than 20% of the clusters show significant non-Gaussianity. While multidimensional normal mixture modelling is more sensitive than the DS test in resolving substructure in the sky distribution of cluster galaxies, the DS test determines better substructure expressed as tails in the velocity distribution of galaxies. Richer, larger, and more luminous clusters have larger amount of substructure and larger (compared to the rms velocity) peculiar velocities of the main galaxies. Principal component analysis of both the substructure indicators and the physical parameters of clusters shows that galaxy clusters are complicated objects, the properties of which cannot be explained with a small number of parameters or delimited by one single test. The presence of substructure, the non-Gaussian velocity distributions, as well as the large peculiar velocities of the main galaxies, shows that most of the clusters in our sample are dynamically young.
description: 15 pages, 11 figures, 2 online tables, accepted for publication in Astronomy and Astrophysics
Evaluating the Impacts of Existing Priority and Developing a Passenger Based Transit Signal Priority
Creators: name: Mishra, Suman
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Sociology--Transportation
subject: TSP
subject: Conditional TSP
subject: TSP evaluation

description: Traffic congestion has been rapidly increasing in developing and developed countries. It leads to an increase in travel time and a loss in reliability. This research focuses on providing priority to buses and reducing the delay on side streets as well. Priority is given to buses based on the number of passengers on the bus. A survey is also conducted to determine the perception of transit users along the Centre street corridor in Calgary regarding the existing priority measures on the corridor. The results showed that there is a decrease in travel time and side street delay with the application of priority based on a number of passengers on the buses compared to the existing priority measures on the corridor. From the survey results, a multinomial logistic regression model was developed. The multinomial logistic regression model showed that respondent’s encouragement to use transit because of the existing priority measures.
Evidence for additional third-order transitions in the two-dimensional Ising model
Creators: name: Sitarachu, Kedkanok
name: Bachmann, Michael
Publisher: name: arXiv
Year: 2023
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We employ the microcanonical inflection-point analysis method, developed for the systematic identification and classification of phase transitions in systems of any size, to study the two-dimensional Ising model at various lattice sizes and in the thermodynamic limit. Exact results for the density of states, which were obtained by exact algorithmic computation, provide evidence for higher-order transitions in addition to the well-studied second-order ferromagnetic-paramagnetic phase transition. An independent third-order phase transition is identified in the ferromagnetic phase, whereas another third-order transition resides in the paramagnetic phase. The latter is a dependent transition, i.e., it is inevitably associated with the critical transition, but it remains separate from the critical point in the thermodynamic limit. For a deeper insight into the nature of these additional transitions, a detailed analysis of spin clusters is performed.
description: 8 pages, 6 figures
Progenitors of type Ia supernovae
Creators: name: Wang, Bo
name: Han, Zhanwen
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Type Ia supernovae (SNe Ia) play an important role in astrophysics and are crucial for the studies of stellar evolution, galaxy evolution and cosmology. They are generally thought to be thermonuclear explosions of accreting carbon-oxygen white dwarfs (CO WDs) in close binaries, however, the nature of the mass donor star is still unclear. In this article, we review various progenitor models proposed in the past years and summarize many observational results that can be used to put constraints on the nature of their progenitors. We also discuss the origin of SN Ia diversity and the impacts of SN Ia progenitors on some fields. The currently favourable progenitor model is the single-degenerate (SD) model, in which the WD accretes material from a non-degenerate companion star. This model may explain the similarities of most SNe Ia. It has long been argued that the double-degenerate (DD) model, which involves the merger of two CO WDs, may lead to an accretion-induced collapse rather than a thermonuclear explosion. However, recent observations of a few SNe Ia seem to support the DD model, and this model can produce normal SN Ia explosion under certain conditions. Additionally, the sub-luminous SNe Ia may be explained by the sub-Chandrasekhar mass model. At present, it seems likely that more than one progenitor model, including some variants of the SD and DD models, may be required to explain the observed diversity of SNe Ia.
description: 23 pages, 5 figures, invited review paper for New Astronomy Reviews, in press
The Effect of Anisotropic Conduction on the Thermal Instability in the Interstellar Medium
Creators: name: Choi, Ena
name: Stone, James M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Thermal instability (TI) can strongly affect the structure and dynamics of the interstellar medium (ISM) in the Milky Way and other disk galaxies. Thermal conduction plays an important role in the TI by stabilizing small scales and limiting the size of the smallest condensates. In the magnetized ISM, however, heat is conducted anisotropically (primarily along magnetic field lines). We investigate the effects of anisotropic thermal conduction on the nonlinear regime of the TI by performing two-dimensional magnetohydrodynamic simulations. We present models with magnetic fields of different initial geometries and strengths, and compare them to hydrodynamic models with isotropic conduction. We find anisotropic conduction does not significantly alter the overall density and temperature statistics in the saturated state of the TI. However, it can strongly affect the shapes and sizes of cold clouds formed by the TI. For example, for uniform initial fields long filaments of cold gas are produced that are reminiscent of some observed HI clouds. For initially tangled fields, such filaments are not produced. We also show that anisotropic conduction suppresses turbulence generated by evaporative flows from the surfaces of cold blobs, which may have implications for mechanisms for driving turbulence in the ISM.
description: 10 pages, 12 figures, Accepted for the publication in ApJ
Smicromyrme (Eremotilla) tekensis Skorikov 1935
Creators: name: Amini, Alieh
name: Lelej, Arkady S.
name: Sadeghi, Hussein
name: Karimi, Javad
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Mutillidae
Smicromyrme
Smicromyrme tekensis

description: Smicromyrme (Eremotilla) tekensis Skorikov, 1935
Figs 6, 7
 Smicromyrme tekensis Skorikov, 1935: 317, ♀, lectotype—♀ (designated by Lelej 1976): Dzhulek, Syr-Dar'inskaya oblast, 13.06.1912, L.M. Wolmann (Kazakhstan) [Zoological Institute, St. Petersburg], examined.
 Material examined: Iran, South Khorasan: 1 ♀, reared in July 2013 from puparium of Carpomya vesuviana collected in Mood (32°42'N, 59°31'E, 1839 m), Sarbishe, 33 km SE Birjand; 1 ♀ reared in Jan. 2012 from puparium of C. vesuviana collected in Razg village (32°53'N, 59°13'E, 1470 m) in the vicinity of Birjand.
 Distribution: Kazakhstan, Kyrgyzstan, Uzbekistan, Turkmenistan, Tajikistan, Iran (new record), China (Xinjiang), Mongolia.
 Two mutillid species from the subfamily Dasylabrinae (genus Chestomutilla Brothers, 1971) and six species from the subfamily Mutillinae (tribe Smicromyrmini, genera Smicromyrme Thomson, 1870 and Physetopoda Schuster, 1949) parasitize Diptera (see Appendix). All mutillids were reared from six species of flies, which belong to the families Syrphidae, Tephritidae, Glossinidae, Rhinophoridae, and Tachinidae (all are from suborder Cyclorrhapha). In spite of their importance, only a few mutillids currently are known as a parasitoids of Diptera, but in future this number is expected to increase.
description: Published as part of Amini, Alieh, Lelej, Arkady S., Sadeghi, Hussein & Karimi, Javad, 2014, First record of the velvet ants (Hymenoptera: Mutillidae) reared from puparia of the ber fruit fly Carpomya vesuviana Costa (Diptera: Tephritidae) in Iran, pp. 585-590 in Zootaxa 3861 (6) on page 588, DOI: 10.11646/zootaxa.3861.6.5, http://zenodo.org/record/226584
Microscopic Study of the Isoscalar Giant Monopole Resonance in Cd, Sn and Pb Isotopes
Creators: name: Cao, Li-Gang
name: Sagawa, H.
name: Colo, G.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The isoscalar giant monopole resonance (ISGMR) in Cd, Sn and Pb isotopes has been studied within the self-consistent Skyrme Hartree-Fock+BCS and quasi-particle random phase approximation (QRPA). Three Skyrme parameter sets are used in the calculations, i.e., SLy5, SkM* and SkP, since they are characterized by different values of the compression modulus in symmetric nuclear matter, namely K=230, 217, and 202 MeV, respectively. We also investigate the effect of different types of pairing forces on the ISGMR in Cd, Sn and Pb isotopes. The calculated peak energies and the strength distributions of ISGMR are compared with available experimental data. We find that SkP fails completely to describe the ISGMR strength distribution for all isotopes due to its low value of the nuclear matter incompressibility, namely K=202 MeV. On the other hand, the SLy5 parameter set, supplemented by an appropriate pairing interaction, gives a reasonable description of the ISGMR in Cd and Pb isotopes. A better description of ISGMR in Sn isotopes is achieved by the SkM* interaction, that has a somewhat softer value of the nuclear incompressibility.
description: Submitted to Phys. Rev. C
Resonances for symmetric two-barrier potentials
Creators: name: Fernández, Francisco M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We describe a method for the accurate calculation of bound-state and resonance energies for one-dimensional potentials. We calculate the shape resonances for symmetric two-barrier potentials and compare them with those coming from the Siegert approximation, the complex scaling method and the box-stabilization method. A comparison of the Breit-Wigner profile and the transmission coefficient about its maximum illustrates that the agreement is better the sharper the resonance.
A semiparametric model for marker gene selection and acute leukemia classification
Creators: name: Chen, Guoqiang
Publisher: name: Graduate Studies
Year: 2012
Subjects: subject: Biostatistics
subject: Case-control study
subject: Semiparametric model
subject: Maximum semiparametric likelihood estimation
subject: Minimum Hellinger distance estimation
subject: Misclassification rate
subject: Gene expression
subject: Marker gene selection

description: Case-control studies are widely used in epidemiology to identify important indicators and factors. In areas such as marker gene selection and binary disease classification, the dominant approaches are either completely nonparametric, such as Wilcoxon test, k-nearest neighbors and support vector machines, or modified t-type statistics under parametric model (mostly Normal) assumptions, such as ANOVA, logistic regression and linear discriminant analysis. Parametric modeling possesses ease in implementation and inference making but is not robust to model assumptions, while a non-parametric approach makes no assumptions on underlying model but is deficient in interpretability. Comparatively, semiparametric modeling strikes a compromise between two aims - flexibility and simplicity of statistical procedures - by introducing partially parametric components. In this thesis, a two-sample semiparametric model is proposed to model the gene expression levels of acute lymphoblastic leukemia (ALL) patients and acute myeloid leukemia (AML) patients. For a data set (training data) containing 38 acute leukemia patients (27 ALL, 11 AML), both classical maximum likelihood (MLE) and minimum Hellinger distance (MHDE) estimation of the semi-parametric model are constructed and compared. Based on MHDE and MLE, Wald tests of significance are carried out to select marker genes. Further, using the idea of weighted sum of misclassification rates, new classification rules based on the selected marker genes are developed. The proposed classification rules are tested on both the training data and another independent validation leukemia data (20 ALL, 14 AML).
Terahertz Coherent Control of a Landau-Quantized Two-Dimensional Electron Gas
Creators: name: Arikawa, T.
name: Wang, X.
name: Hilton, D. J.
name: Reno, J. L.
name: Pan, W.
name: Kono, J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We demonstrate coherent control of cyclotron resonance (CR) in a two-dimensional electron gas (2DEG). We use a sequence of terahertz pulses to control the amplitude of CR oscillations in an arbitrary fashion via phase-dependent coherent interactions. We observe a self-interaction effect, where the 2DEG interacts with the terahertz field emitted by itself within the decoherence time, resulting in a revival and collapse of quantum coherence. These observations are accurately describable using {\em single-particle} optical Bloch equations, showing no signatures of electron-electron interactions, which verifies the validity of Kohn's theorem for CR in the coherent regime.
description: 4 pages, 4 figures
Midlife women, food choice, and bone health : a qualitative case study of using a participatory practice approach to develop targeted nutrition education resources
Creators: name: Hammond, Gail Kathleen
Publisher: name: University of British Columbia
Year: 2010

description: Nutrition professionals rely on nutrition education resources to help people make informed food choices. Despite this reliance, nutrition education resources are often developed in isolation of the intended users, a practice that may compromise the effectiveness of dietary services provided by nutrition professionals. Diet is a modifiable factor impacting bone health. Concurrent with midlife Canadian women’s less than recommended dietary intake of foods rich in calcium and vitamin D—two key nutrients for bone health—is a projected increased incidence of osteoporosis as Canada’s population ages. Providing dietary services that match midlife Canadian women’s needs may be effectual in maximizing dietary approaches to bone health. The objectives of this two-phase qualitative research were, first, to gain insight into how midlife women consider bone health in their food choices, and second, to use an inclusive and collaborative process engaging nutrition professionals and lay midlife women in producing bone health-related nutrition education resources that meet their needs. Using focus groups and qualitative data analysis strategies consistent with focus group methodology, the first phase revealed multiple realities for healthy midlife women; despite this, they shared an idealized view of wanting to eat for “holistic” health. Most do not want to explicitly prioritize bone health relative to other aspects of health; however, few women felt their usual eating patterns matched the prevailing idealized view. In the second phase, a collaborative partnership of midlife community women and dietitians used a participatory practice approach to develop two nutrition education resources: a bookmark style print resource and a website combining women’s personal stories with information on food choices, physical activity, and nutritional supplements. Qualitative interviews conducted at the conclusion of the project revealed varied ways in which the participants valued and used the final resources in their personal and professional lives. A reflective examination of the benefits obtained from, and challenges encountered in, this project suggests that nutrition professionals’ practice of developing nutrition education resources may benefit from engaging in inclusive and collaborative activities with the intended users of their nutrition services.
Magnetic order and the electronic ground state in the pyrochlore iridate Nd2Ir2O7
Creators: name: Disseler, S. M.
name: Dhital, Chetan
name: Hogan, T. C.
name: Amato, A.
name: Giblin, S. R.
name: de la Cruz, Clarina
name: Daoud-Aladine, A.
name: Wilson, Stephen D.
name: Graf, M. J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report a combined muon spin relaxation/rotation, bulk magnetization, neutron scattering, and transport study of the electronic properties of the pyrochlore iridate Nd2Ir2O7. We observe the onset of strongly hysteretic behavior in the temperature dependent magnetization below 120 K, and an abrupt increase in the temperature dependent resistivity below 8 K. Zero field muon spin relaxation measurements show that the hysteretic magnetization is driven by a transition to a magnetically disordered state, and that below 8 K a complex magnetically ordered ground state sets in, as evidenced by the onset of heavily damped spontaneous muon precession. Our measurements point toward the absence of a true metal-to-insulator phase transition in this material and suggest that Nd2Ir2O7 lies either within or on the metallic side of the boundary of the Dirac semimetal regime within its topological phase diagram.
description: 21 pages, 7 figures
The lead-glass electromagnetic calorimeters for the magnetic spectrometers in Hall C at Jefferson Lab
Creators: name: Mkrtchyan, H.
name: Carlini, R.
name: Tadevosyan, V.
name: Arrington, J.
name: Asaturyan, A.
name: Christy, M. E.
name: Dutta, D.
name: Ent, R.
name: Fenker, H. C.
name: Gaskell, D.
name: Horn, T.
name: Jones, M. K.
name: Keppel, C. E.
name: Mack, D. J.
name: Malace, S. P.
name: Mkrtchyan, A.
name: Niculescu, M. I.
name: Seely, J.
name: Tvaskis, V.
name: Wood, S. A.
name: Zhamkochyan, S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The electromagnetic calorimeters of the various magnetic spectrometers in Hall C at Jefferson Lab are presented. For the existing HMS and SOS spectrometers design considerations, relevant construction information, and comparisons of simulated and experimental results are included. The energy resolution of the HMS and SOS calorimeters is better than $σ/E \sim 6%/\sqrt E $, and pion/electron ($π/e$) separation of about 100:1 has been achieved in energy range 1 -- 5 GeV. Good agreement has been observed between the experimental and simulated energy resolutions, but simulations systematically exceed experimentally determined $π^-$ suppression factors by close to a factor of two. For the SHMS spectrometer presently under construction details on the design and accompanying GEANT4 simulation efforts are given. The anticipated performance of the new calorimeter is predicted over the full momentum range of the SHMS. Good electron/hadron separation is anticipated by combining the energy deposited in an initial (preshower) calorimeter layer with the total energy deposited in the calorimeter.
description: 22 pages, 33 figures
Critical exponents of the pair contact process with diffusion
Creators: name: Schram, R. D.
name: Barkema, G. T.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the pair contact process with diffusion (PCPD) using Monte Carlo simulations, and concentrate on the decay of the particle density $ρ$ with time, near its critical point, which is assumed to follow $ρ(t) \approx ct^{-δ} +c_2t^{-δ_2}+...$. This model is known for its slow convergence to the asymptotic critical behavior; we therefore pay particular attention to finite-time corrections. We find that at the critical point, the ratio of $ρ$ and the pair density $ρ_p$ converges to a constant, indicating that both densities decay with the same powerlaw. We show that under the assumption $δ_2 \approx 2 δ$, two of the critical exponents of the PCPD model are $δ= 0.165(10)$ and $β= 0.31(4)$, consistent with those of the directed percolation (DP) model.
Resonance widths for the molecular predissociation
Creators: name: Grigis, Alain
name: Martinez, André
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 35P15

description: We consider a semiclassical $2\times 2$ matrix Schrödinger operator of the form $P=-h^2Δ{\bf I}_2 + {\rm diag}(V_1(x), V_2(x)) +hR(x,hD_x)$, where $V_1, V_2$ are real-analytic, $V_2$ admits a non degenerate minimum at 0, $V_1$ is non trapping at energy $V_2(0)=0$, and $R(x,hD_x)=(r_{j,k}(x,hD_x))_{1\leq j,k\leq 2}$ is a symmetric off-diagonal $2\times 2$ matrix of first-order pseudodifferential operators with analytic symbols. We also assume that $V_1(0) >0$. Then, denoting by $e_1$ the first eigenvalue of $-Δ+ \la V_2"(0)x,x\ra /2$, and under some ellipticity condition on $r_{1,2}$ and additional generic geometric assumptions, we show that the unique resonance $ρ_1$ of $P$ such that $ρ_1 = V_2(0) + (e_1+r_{2,2}(0,0))h + {\mathcal O}(h^2)$ (as $h\rightarrow 0_+$) satisfies, $$ \Im ρ_1 = -h^{n_0+(1-n_Γ)/2}f(h,\ln\frac1{h})e^{-2S/h}, $$ where $f(h,\ln\frac1{h}) \sim \sum_{0\leq m\leq\ell} f_{\ell,m}h^\ell(\ln\frac1{h})^m$ is a symbol with $f_{0,0}>0$, $S>0$ is the so-called Agmon distance associated with the degenerate metric $\max(0, \min(V_1,V_2))dx^2$, between 0 and $\{V_1\leq 0\}$, and $n_0\geq 1$, $n_Γ\geq 0$ are integers that depend on the geometry.
description: 37 pages, no figure
Experiences of Social Exclusion and Inclusion among Black African Immigrant Youth in Calgary, Alberta
Creators: name: Zaami, Mariama
Publisher: name: Graduate Studies
Year: 2017
Subjects: subject: Ethnic and Racial Studies
subject: Black African immigrant youth
subject: Social Exclusion
subject: Social inclusion
subject: critical race theory
subject: Calgary

description: The goal of this study is to gain an understanding of the factors promoting social exclusion and inclusion from the perspective of first generation Black African immigrant youth in Calgary, Alberta, Canada. Most of the literature on Blacks and other visible minorities in Canada is centered on challenges of integration, which have been identified in terms of socio-economic and political marginalization. However, there is little research on immigrant youth from specific communities, notably Blacks and their experiences of social exclusion and inclusion in Canadian society. This current study fills this important gap by offering an understanding into the experiences of social exclusion and inclusion of Black African youth in Calgary, a city that is arguably becoming increasingly diverse with the influx of immigrants from different countries and other Canadian provinces. Drawing on qualitative research methods (40 semi-structured interviews with Ghanaian and Sudanese youth immigrants, 20 females and 20 males between the ages of 18 and 30 years), this study incorporates meaningful insights from African immigrant youth on the drivers of social exclusion and inclusion. The analysis is grounded in critical race theory (CRT) and the concepts of social exclusion and inclusion. Overall, the findings indicate that Black African immigrant youth face marginalization in the educational system, the labour market and in racial profiling in navigating through the city of Calgary. A sense of inclusion is rooted in ethnic group and religious association, and a part of Calgary’s broader society, namely, inclusion in activities such as the Calgary Stampede, Afrikadey celebrations, and GlobalFest. The study contributes a new perspective to understanding Black African immigrant youth experiences of integration into Western Canada.
UrQMD calculations of two-pion HBT correlations in central Pb-Pb collisions at $\sqrt{s_{NN}}=2.76$ TeV
Creators: name: Li, Qingfeng
name: Graef, Gunnar
name: Bleicher, Marcus
Publisher: name: arXiv
Year: 2012
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Two-pion Hanbury-Brown-Twiss (HBT) correlations for central Pb-Pb collisions at the Large-Hadron-Collider (LHC) energy of $\sqrt{s_{NN}}=2.76$ TeV are investigated for the first time with the microscopic transport model UrQMD (Ultra-relativistic Quantum Molecular Dynamics). The transverse momentum dependence of the Pratt-Bertsch HBT radii is extracted from a three dimensional Gaussian fit to the correlator in the longitudinal co-moving system (LCMS). Qualitative agreement with the ALICE data is obtained, however $R_{out}$ is overpredicted by nearly 50%. The LHC results are also compared to data from the STAR experiment at RHIC. For both energies we find that the calculated $R_O/R_S$ ratio is always larger than data, indicating that the emission in the model is less explosive than observed in the data.
description: 11 pages, 3 figures, wording improvements, updated references
Theories of analytic monads
Creators: name: Szawiel, Stanisław
name: Zawadowski, Marek
Publisher: name: arXiv
Year: 2012
Subjects: subject: Category Theory (math.CT)
subject: FOS: Mathematics
subject: 18C05, 18C10, 18C15, 18D50, 03F25, 08B05, 03G30, 18A32, 18D10, 18C20, 08B20

description: We characterize the equational theories and Lawvere theories that correspond to the categories of analytic and polynomial monads on Set, and hence also the categories of the symmetric and rigid operads in Set. We show that the category of analytic monads is equivalent to the category of regular-linear theories. The category of polynomial monads is equivalent to the category of rigid theories, i.e. regular-linear theories satisfying an additional global condition. This solves a problem A. Carboni and P. T. Johnstone. The Lawvere theories corresponding to these monads are identified via some factorization systems.
description: 29 pages. v2: minor corrections
Designing a Playground for Romeo and Juliet
Creators: name: Espinoza Vaca, Ana Luisa
Publisher: name: University of British Columbia
Year: 2010

description: The production of Romeo and Juliet took place at the Telus Theatre in Vancouver from 21st to the 30th of January 2010 as part of the UBC 2009-2010 program. It was directed by Catriona Leger, costumes by Carmen Alatorre, lighting by Conor Moore, original music by Mischelle Cuttler and Patrick Pennefather. Set design was done by myself as the main topic for this thesis. The word playground in the title points to both the play culture associated with the theatrical event as well as well as the physical space for play. Building off of the notion of the childhood playground, I sought to illuminate the theatrical space as one which is literally a place of play-not only as a space in which one views a play, but also a space for actors to physically play (that is to explore and create). The stage would not be a constricting place which limits the actors movements, but rather, a flexible and open space to perform ( a necessity, given the physicality of the show). The playground is for kids as the playground is for buffoons in my set. As I desired to deviate from the traditional notions of theatrical space, I also sought to break the conventions of traditions of Shakespearean staging, creating a non specific place or time and inviting the spectators into the sense of festivity. The shape of the theatre in combination with the design allowed for the actors to use the whole space whether it is in or between the audience, on top of a balcony or in the grid. Since this side-play was a necessary factor in eliminating the fourth wall, the space needed to be a seem-less integration between audience and actor to facilitate such interaction. Thus, the set was designed to crawl into the audience's space. By extending the existing architectural elements of the theatre and working them into the design the theatre became an unencumbered, expansive space for play.
Noncommutative Solitonic Black Hole
Creators: name: Chang-Young, Ee
name: Kimm, Kyoungtae
name: Lee, Daeho
name: Lee, Youngone
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate solitonic black hole solutions in three dimensional noncommutative spacetime. We do this in gravity with negative cosmological constant coupled to a scalar field. Noncommutativity is realized with the Moyal product which is expanded up to first order in the noncommutativity parameter in two spatial directions. With numerical simulation we study the effect of noncommutativity by increasing the value of the noncommutativity parameter starting from commutative solutions. We find that even a regular soliton solution in the commutative case becomes a black hole solution when the noncommutativity parameter reaches a certain value.
description: 11 pages, 5 figures, LaTeX format, appendix added, minor corrections
Dwelling Together: Aesthetic Practice in the Family Home
Creators: name: Blades, Kenneth
Publisher: name: Graduate Studies
Year: 2012
Subjects: subject: Anthropology--Cultural
subject: Individual and Family Studies
subject: Urban and Regional Planning
subject: FOS: Social and economic geography
subject: Family
subject: Home
subject: Decorating
subject: Aesthetic Practice
subject: Ethnography
subject: Visual Studies
subject: Institutional Ethnography

description: Home design and decoration have risen to prominence in popular culture and as areas of professional expertise, but furnishing one’s abode is an ancient practice which invites not only aesthetic analysis, but also warrants serious sociological attention. This study provides such attention in the context of family life, revealing how designing, decorating, and living at home are so intimately interwoven with family relationships that they are in fact constitutive of family as a lived social form. Family members produce the idea and experience of family, in part, with and through material activities like decorating. Through in-depth interviews with sixteen individuals and ethnographic analysis of their home decorating activities, this study reveals the diversity of ways in which people accomplish this work in practice, and furnishes also the theoretical and ontological foundation necessary to understand how an experienced ideological form like “the family” depends upon material and aesthetic practices.
Energy spectra of primary and secondary cosmic-ray nuclei measured with TRACER
Creators: name: Obermeier, A.
name: Ave, M.
name: Boyle, P.
name: Höppner, Ch.
name: Hörandel, J.
name: Müller, D.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The TRACER cosmic-ray detector, first flown on long-duration balloon (LDB) in 2003 for observations of the major primary cosmic-ray nuclei from oxygen (Z=8) to iron (Z=26), has been upgraded to also measure the energies of the lighter nuclei, including the secondary species boron (Z=5). The instrument was used in another LDB flight in 2006. The properties and performance of the modified detector system are described, and the analysis of the data from the 2006 flight is discussed. The energy spectra of the primary nuclei carbon (Z=6), oxygen, and iron over the range from 1 GeV amu$^{-1}$ to 2 TeV amu$^{-1}$ are reported. The data for oxygen and iron are found to be in good agreement with the results of the previous TRACER flight. The measurement of the energy spectrum of boron also extends into the TeV amu$^{-1}$ region. The relative abundances of the primary nuclei, such as carbon, oxygen, and iron, above $\sim10$ GeV amu$^{-1}$ are independent of energy, while the boron abundance, i.e. the B/C abundance ratio, decreases with energy as expected. However, there is an indication that the previously reported $E^{-0.6}$ dependence of the B/C ratio does not continue to the highest energies.
description: 16 pages, 18 figures. Accepted for publication in ApJ
Data-driven methods to estimate the committor function in conceptual ocean models
Creators: name: Jacques-Dumas, Valérian
name: van Westen, René M.
name: Bouchet, Freddy
name: Dijkstra, Henk A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: In recent years, several climate subsystems have been identified that may undergo a relatively rapid transition compared to the changes in their forcing. Such transitions are rare events in general, and simulating long-enough trajectories in order to gather sufficient data to determine transition statistics would be too expensive. Conversely, rare events algorithms like TAMS (trajectory-adaptive multilevel sampling) encourage the transition while keeping track of the model statistics. However, this algorithm relies on a score function whose choice is crucial to ensure its efficiency. The optimal score function, called the committor function, is in practice very difficult to compute. In this paper, we compare different data-based methods (analog Markov chains, neural networks, reservoir computing, dynamical Galerkin approximation) to estimate the committor from trajectory data. We apply these methods on two models of the Atlantic Ocean circulation featuring very different dynamical behavior. We compare these methods in terms of two measures, evaluating how close the estimate is from the true committor and in terms of the computational time. We find that all methods are able to extract information from the data in order to provide a good estimate of the committor. Analog Markov Chains provide a very reliable estimate of the true committor in simple models but prove not so robust when applied to systems with a more complex phase space. Neural network methods clearly stand out by their relatively low testing time, and their training time scales more favorably with the complexity of the model than the other methods. In particular, feedforward neural networks consistently achieve the best performance when trained with enough data, making this method promising for committor estimation in sophisticated climate models.
description: 22 pages, 5 figures
Quasi-stationary distributions and Yaglom limits of self-similar Markov processes
Creators: name: Haas, Bénédicte
name: Rivero, Víctor Manuel
Publisher: name: arXiv
Year: 2011
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: We discuss the existence and characterization of quasi-stationary distributions and Yaglom limits of self-similar Markov processes that reach 0 in finite time. By Yaglom limit, we mean the existence of a deterministic function $g$ and a non-trivial probability measure $ν$ such that the process rescaled by $g$ and conditioned on non-extinction converges in distribution towards $ν$. If the study of quasi-stationary distributions is easy and follows mainly from a previous result by Bertoin and Yor \cite{BYFacExp} and Berg \cite{bergI}, that of Yaglom limits is more challenging. We will see that a Yaglom limit exits if and only if the extinction time at 0 of the process is in the domain of attraction of an extreme law and we will then treat separately three cases, according whether the extinction time is in the domain of attraction of a Gumbel law, a Weibull law or a Fréchet law. In each of these cases, necessary and sufficient conditions on the parameters of the underlying Lévy process are given for the extinction time to be in the required domain of attraction. The limit of the process conditioned to be positive is then characterized by a multiplicative equation which is connected to a factorization of the exponential distribution in the Gumbel case, a factorization of a Beta distribution in the Weibull case and a factorization of a Pareto distribution in the Fréchet case. This approach relies partly on results on the tail distribution of the extinction time, which is known to be distributed as the exponential integral of a Lévy process. In that aim, new results on such tail distributions are given, which may be of independent interest. Last, we present applications of the Fréchet case to a family of Ornstein-Uhlenbeck processes.
FastJet user manual
Creators: name: Cacciari, Matteo
name: Salam, Gavin P.
name: Soyez, Gregory
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: FastJet is a C++ package that provides a broad range of jet finding and analysis tools. It includes efficient native implementations of all widely used 2-to-1 sequential recombination jet algorithms for pp and e+e- collisions, as well as access to 3rd party jet algorithms through a plugin mechanism, including all currently used cone algorithms. FastJet also provides means to facilitate the manipulation of jet substructure, including some common boosted heavy-object taggers, as well as tools for estimation of pileup and underlying-event noise levels, determination of jet areas and subtraction or suppression of noise in jets.
description: 69 pages. FastJet 3 is available from http://fastjet.fr/
Predicting Thrombus Formation in Patients with Internal Carotid Artery Webs
Creators: name: Ali, Syedah Salwa
Publisher: name: Graduate Studies
Year: 2017
Subjects: subject: Education--Health
subject: Anatomy
subject: Neuroscience
subject: Biophysics--Medical
subject: Fluid and Plasma
subject: Engineering--Biomedical
subject: Psychology--Clinical
subject: External Carotid Artery (ECA)
subject: Webs
subject: Stroke
subject: Computational Fluid Dynamics (CFD)
subject: Internal Carotid Artery (ICA)
subject: User Defined Function (UDF)
subject: Time Averaged Wall Shear Stress (TAWSS)
subject: Wall Shear Stress (WSS)
subject: Carotid Artery
subject: Hemodynamic Wall descriptors (HWD)
subject: Oscillatory Shear Index (OSI)
subject: Relative Residence Time (RRT)

description: Carotid webs are fibro-intimal growths affecting the internal carotid artery but are pathologically different from common atherosclerotic plaques. They cause moderate stenosis and are difficult to diagnose. However, if treated, patients present themselves again with recurrent ischemic strokes due to thrombus formation distal to the stenosis. Lack of knowledge urged the need to conduct hemodynamic analysis. This is the first study to quantify hemodynamic changes in the carotid web region. We conducted transient analysis on 3 symptomatic stroke patients with carotid webs. Carotid web region in each of the 3 carotid arteries with web was calculated with high OSI levels (0.3 approx.), low TAWSS values (less than 0.4Pa) and high RRT values. We also visualized recirculating flow behind the web during deceleration phases of cardiac cycle. All these factors reveal that carotid webs disturb blood flow patterns to cause blood stagnation, recirculation and thrombus formation to cause stroke.
Field-theoretic analysis of directed percolation: Three-loop approximation
Creators: name: Adzhemyan, Loran Ts.
name: Hnatič, Michal
name: Ivanova, Ella V.
name: Kompaniets, Mikhail V.
name: Lučivjanský, Tomǎš
name: Mižišin, Lukáš
Publisher: name: arXiv
Year: 2023
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The directed bond percolation is a paradigmatic model in nonequilibrium statistical physics. It captures essential physical information on the nature of continuous phase transition between active and absorbing states. In this paper, we study this model by means of the field-theoretic formulation with a subsequent renormalization group analysis. We calculate all critical exponents needed for the quantitative description of the corresponding universality class to the third order in perturbation theory. Using dimensional regularization with minimal subtraction scheme, we carry out perturbative calculations in a formally small parameter $\varepsilon$, where $\varepsilon=4-d$ is a deviation from the upper critical dimension $d_c=4$. We use a nontrivial combination of analytical and numerical tools in order to determine ultraviolet divergent parts of Feynman diagrams.
Mining Event Logs to Support Workflow Resource Allocation
Creators: name: Liu, Tingyu
name: Cheng, Yalong
name: Ni, Zhonghua
Publisher: name: arXiv
Year: 2012
Subjects: subject: Software Engineering (cs.SE)
subject: Databases (cs.DB)
subject: FOS: Computer and information sciences
subject: H.4.1; H.4.2; I.2; H.2.8; J.1

description: Workflow technology is widely used to facilitate the business process in enterprise information systems (EIS), and it has the potential to reduce design time, enhance product quality and decrease product cost. However, significant limitations still exist: as an important task in the context of workflow, many present resource allocation operations are still performed manually, which are time-consuming. This paper presents a data mining approach to address the resource allocation problem (RAP) and improve the productivity of workflow resource management. Specifically, an Apriori-like algorithm is used to find the frequent patterns from the event log, and association rules are generated according to predefined resource allocation constraints. Subsequently, a correlation measure named lift is utilized to annotate the negatively correlated resource allocation rules for resource reservation. Finally, the rules are ranked using the confidence measures as resource allocation rules. Comparative experiments are performed using C4.5, SVM, ID3, Naïve Bayes and the presented approach, and the results show that the presented approach is effective in both accuracy and candidate resource recommendations.
description: T. Liu et al., Mining event logs to support workflow resource allocation, Knowl. Based Syst. (2012), http://dx.doi.org/ 10.1016/j.knosys.2012.05.010
The Impact of Speed and Orientation on Nighttime Recognition of Retro-reflectively Outfitted Pedestrians
Creators: name: Mian, Jasmine
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Psychology--Experimental
subject: Safety
subject: Human Factors
subject: Pedestrian Conspicuity
subject: Retro-Reflectors
subject: Biological Motion

description: Objective: To determine how speed of motion and orientation impact observers‘ decisions about the recognisability of pedestrians in biological motion retro-reflectors. Method: Forty undergraduate students observed videos of pedestrians who were standing, walking or running with the side or back of their body oriented towards the observer at three distances in high and low beams. Participants decided which of the two pedestrians was most recognizable as a person. Results: For both orientations, observers found walking and running pedestrians more recognizable than standing pedestrians. Observers also found running pedestrians more recognizable than walkers. The impact of pedestrian orientation was dependent on speed. When standing, pedestrians in the back orientation were selected more often, but when running, side-oriented pedestrians were selected as the most recognizable. Conclusions: Observers find pedestrians moving at faster speeds more recognizable than those moving more slowly. The effect of pedestrian orientation depends on speed of motion
Invariant Theory of little adjoint modules
Creators: name: Panyushev, Dmitri I.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14L30, 17B20, 22E46

description: Let G be a complex simple algebraic group. We consider invariant-theoretic properties of the simple G-module whose highest weight is the short dominant root.
description: 14 pages
Leucoptera spartifoliella
Creators: name: Wieser, Christian
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Lyonetiidae
Leucoptera
Leucoptera spartifoliella

description: Leucoptera spartifoliella (Hübner, [1813])
DESCHKA 1983 schreibt ausführlich über die Biologie und Anatomie der Art. L. spartifoliella lebt monophag minierend in den Stängeln von Cytisus scoparius (BENGTSON & JOHANSSON 2011), dem Besenginster. Der Nachweis gelang im Rahmen eines “Publikumsleuchtens” im Freilichtmuseum von Maria Saal. Im Rahmen dieser seit mehreren Jahren durchgeführten Veranstaltung erhalten Besucher die Möglichkeit an wissenschaftlichen Erhebungen der Nachtfalterfauna durch die zoologische Abteilung des Kärntner Landesmuseums teilzunehmen. Besenginster ist laut HARTL et al. 1992 im Kärntner Unterland weit verbreitet, wenn auch nicht überall autochthon, so wurde er vielfach als Böschungsbefestigung und bei der Anlage von Wildäsungsflächen verwendet und ausgebracht. Auch das Vorkommen der Pflanze im Freilichtmuseum dürfte wohl anthropogenen Ursprunges sein.
Funddaten: Maria Saal Freilichtmuseum, 16.6. 2017. Leg. und det. Wieser
Barcodekenndaten in BOLD: KLM Lep 12337/ LEAST1582-1.
In Österreich sind bei HUEMER 2013 Meldungen aus Osttirol, Oberösterreich, Niederösterreich und dem Burgenland angeführt.
description: Published as part of Wieser, Christian, 2017, Weitere Erstfunde und bemerkenswerte Schmetterlingsnachweise aus Kärnten (Insecta: Lepidoptera), pp. 285-291 in Rudolfinum – Jahrbuch des Landesmuseums für Kärnten 2017 on page 287, DOI: 10.5281/zenodo.5725317