cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Truncated Shukla Distribution: Properties And Applications
Creators: name: Shukla, Kamlesh Kumar
name: Shanker, Rama
Publisher: name: Reliability: Theory & Applications
Year: 2021
Subjects: Truncated distribution
Shukla distribution
Maximum likelihood Estimate

description: In this paper, Truncated Shukla distribution has been proposed. Some statistical properties including moments, coefficient of variation, skewness and index of dispersion have been derived. Survival and Hazard functions are derived and its behaviors are presented graphically. Maximum likelihood method of estimation has been used to estimate the parameter of proposed model. Simulation study of proposed distribution has also been discussed. It has been applied on three data sets and compares its superiority over two parameter Power Lindley, Gamma, Weibull, Shukla distributions and one parameter Truncated Akash, Truncated Lindley, Lindley and Exponential distributions.
Extrinsic point defects in aluminum antimonide
Creators: name: Erhart, Paul
name: Åberg, Daniel
name: Lordi, Vincenzo
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We investigate thermodynamic and electronic properties of group IV (C, Si, Ge, Sn) and group VI (O, S, Se, Te) impurities as well as P and H in aluminum antimonide (AlSb) using first-principles calculations. To this end, we compute the formation energies of a broad range of possible defect configurations including defect complexes with the most important intrinsic defects. We also obtain relative scattering cross strengths for these defects to determine their impact on charge carrier mobility. Furthermore, we employ a self-consistent charge equilibration scheme to determine the net charge carrier concentrations for different temperatures and impurity concentrations. Thereby, we are able to study the effect of impurities incorporated during growth and identify optimal processing conditions for achieving compensated material. The key findings are summarized as follows. Among the group IV elements, C, Si, and Ge substitute for Sb and act as shallow acceptors, while Sn can substitute for either Sb or Al and displays amphoteric character. Among the group VI elements, S, Se, and Te substitute for Sb and act as deep donors. In contrast, O is most likely to be incorporated as an interstitial and predominantly acts as an acceptor. As a group V element, P substitutes for Sb and is electrically inactive. C and O are the most detrimental impurities to carrier transport, while Sn, Se, and Te have a modest to low impact. Therefore, Te can be used to compensate C and O impurities, which are unintentionally incorporated during the growth process, with minimal effect on the carrier mobilities.
description: 12 pages, 12 figures
Validation Of DNAFIDs Model Through Finite State Machine
Creators: name: Pal, Yogesh
name: Kumar, Santosh
name: Singh, Madhulika
name: Dwivedi, Shweta
Publisher: name: Reliability: Theory & Applications
Year: 2021
Subjects: DNAFIDs
FSM
Class Diagram
State Diagram
Transition Table

description: The assurance of quality and reliability of process models and workflows is essential for model driven software development. There are numerous ways to achieve these objectives. One is model checking through which it can be verified that a model satisfies specific logical rules. The model to be checked is usually given as finite state machine. Rules have to be specified at the level required by the model checker. In this work, we develop a model for validating the DNA profiling through finite state.. This enables the research/business process professionals to use model checking techniques and to produce higher quality research/business models for subsequent software development. The approach is demonstrated by validating event-driven process chains.
String Matching with Inversions and Translocations in Linear Average Time (Most of the Time)
Creators: name: Grabowski, Szymon
name: Faro, Simone
name: Giaquinta, Emanuele
Publisher: name: arXiv
Year: 2010
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: We present an efficient algorithm for finding all approximate occurrences of a given pattern $p$ of length $m$ in a text $t$ of length $n$ allowing for translocations of equal length adjacent factors and inversions of factors. The algorithm is based on an efficient filtering method and has an $\bigO(nm\max(α, β))$-time complexity in the worst case and $\bigO(\max(α, β))$-space complexity, where $α$ and $β$ are respectively the maximum length of the factors involved in any translocation and inversion. Moreover we show that under the assumptions of equiprobability and independence of characters our algorithm has a $\bigO(n)$ average time complexity, whenever $σ= Ω(\log m / \log\log^{1-ε} m)$, where $ε> 0$ and $σ$ is the dimension of the alphabet. Experiments show that the new proposed algorithm achieves very good results in practical cases.
description: 9 pages. A slightly shorter version of this manuscript was submitted to Information Processing Letters
Coherent control of interacting particles using dynamical and Aharonov-Bohm phases
Creators: name: Creffield, C. E.
name: Platero, G.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A powerful method of manipulating the dynamics of quantum coherent particles is to control the phase of their tunneling. We consider a system of two electrons hopping on a quasi one-dimensional lattice in the presence of a uniform magnetic field, and study the effect of adding a time-periodic driving potential. We show that the dynamical phases produced by the driving can combine with the Aharonov-Bohm phases to give precise control of the localization and dynamics of the particles, even in the presence of strong particle interactions.
description: 4.5 pages, 4 eps figures
Determining species tree topologies from clade probabilities under the coalescent
Creators: name: Allman, Elizabeth S.
name: Degnan, James H.
name: Rhodes, John A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Algebraic Geometry (math.AG)
subject: FOS: Biological sciences
subject: FOS: Mathematics
subject: 62P10, 92D15

description: One approach to estimating a species tree from a collection of gene trees is to first estimate probabilities of clades from the gene trees, and then to construct the species tree from the estimated clade probabilities. While a greedy consensus algorithm, which consecutively accepts the most probable clades compatible with previously accepted clades, can be used for this second stage, this method is known to be statistically inconsistent under the multispecies coalescent model. This raises the question of whether it is theoretically possible to reconstruct the species tree from known probabilities of clades on gene trees. We investigate clade probabilities arising from the multispecies coalescent model, with an eye toward identifying features of the species tree. Clades on gene trees with probability greater than 1/3 are shown to reflect clades on the species tree, while those with smaller probabilities may not. Linear invariants of clade probabilities are studied both computationally and theoretically, with certain linear invariants giving insight into the clade structure of the species tree. For species trees with generic edge lengths, these invariants can be used to identify the species tree topology. These theoretical results both confirm that clade probabilities contain full information on the species tree topology and suggest future directions of study for developing statistically consistent inference methods from clade frequencies on gene trees.
description: 25 pages, 2 figures
Semiconducting chains of gold and silver
Creators: name: Fioravante, Frederico
name: Nunes, R. W.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The authors introduce a geometry for ultrathin Au and Ag wires that ab initio calculations indicate to be more stable than previously considered planar geometries for these systems, by about 0.1 eV per atom. This structure is insulating for both metals and for related Ag_(0.5)-Au_(0.5) alloys, with gaps of 1.3 eV for Au, 0.8 eV for Ag, and varying between 0.1 eV and 1.9 eV for the alloys. The insulating nature of the geometry is not a result of Peierls instabilities, and is analyzed in terms of an interplay between geometric and electronic structure effects.
description: 4 pages, 3 figures (3 pages in published format)
Supplementary document for Magnetometry based on laser-induced plasmas effect in a sodium-containing environment - 5987963.pdf
Creators: name: Ding, Ning
name: Kang, Guoguo
name: Zhang, XiaoXu
name: Guo, YiXin
name: Guo, ZongYu
name: Zhao, Luo
name: Jin, Weiqi
name: Zheng, Huiqi
name: Ren, Qiongying
name: Zhao, Hua
Publisher: name: Optica Publishing Group
Year: 2022
Subjects: Uncategorized

description: Experimental details
Elicitation of the acoustic change complex (ACC) to long-duration speech stimuli in four-month-old infants
Creators: name: Chen, Ke Heng
Publisher: name: University of British Columbia
Year: 2014

description: The acoustic change complex (ACC) is a cortical auditory-evoked potential (CAEP) that comprises overlapping slow cortical responses (P1-N1-P2) and occurs in response to changes during an ongoing stimulus (Martin, Tremblay, & Korczak, 2008). Research findings suggest that the ACC indicates discrimination at the level of the auditory cortex and provides insight into the brain’s capacity to process acoustic features of speech (Kaukoranta, et al., 1987; Ostroff, et al., 1998). Only one study to date has attempted to record ACCs to speech stimuli in young infants (Small & Werker, 2012). Small and Werker (2012) tested a group of English-learning four-month-old infants with speech contrasts generated from a synthetic place-of-articulation continuum: a native dental-dental contrast /dada/, dental-labial contrast /daba/, and a non-native Hindi dentalretroflex contrast /daDa/. Slow cortical responses resembling adult P1-N1-P2 complex were recorded for all conditions with significantly prolonged latencies compared with adults. Robust ACCs were elicited in most infants to /daba/ with distinct P1, N1 and P2 components, but fewer infants had ACC components in response to /dada/ and /daDa/. The author suggested that the absence of ACCs in /dada/ and /daDa/ conditions might be due to short stimulus length. The purpose of the present study was to investigate the effect of long-duration speech stimuli for eliciting ACCs in four-month-old infants. By increasing the stimulus length from 564 to 816 ms, ACCs were reliably elicited for all stimulus conditions (/dada/, /daba/ and /daDa/) in infants with more distinct cortical components and better morphology compared with previous findings (Small & Werker, 2012). The amplitude of P1 elicited to the acoustic change in /daba/ and /daDa/ was significantly larger compared iii with that of P1 for /dada/, indicating that the brain discriminated between the speech tokens. In conclusion, our results support the findings by Small and Werker (2012) showing that adult-like slow cortical responses can be recorded in young infants. Our results also suggest that ACCs can be reliably elicited in four-month-old infants given optimized stimulus parameters (e.g. longer ISIs and stimulus duration) and provide further evidence for the use of ACCs as an index of discrimination ability.
Real-Time Detection and Rapid Multiwavelength Follow-up Observations of a Highly Subluminous Type II-P Supernova from the Palomar Transient Factory Survey
Creators: name: Gal-Yam, Avishay
name: Kasliwal, Mansi M.
name: Arcavi, Iair
name: Green, Yoav
name: Yaron, Ofer
name: Ben-Ami, Sagi
name: Xu, Dong
name: Sternberg, Assaf
name: Quimby, Robert M.
name: Kulkarni, Shrinivas R.
name: Ofek, Eran O.
name: Walters, Richard
name: Nugent, Peter E.
name: Poznanski, Dovi
name: Bloom, Joshua S.
name: Cenko, S. Bradley
name: Filippenko, Alexei V.
name: Li, Weidong
name: Silverman, J.
name: Walker, Emma S.
name: Sullivan, Mark
name: Maguire, K.
name: Howell, D. Andrew
name: Mazzali, Paolo A.
name: Frail, Dale A.
name: Bersier, David
name: James, Phil A.
name: Akerlof, C. W.
name: Yuan, Fang
name: Fox, Derek B.
name: Law, Nicholas
name: Gehrels, Neil
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The Palomar Transient Factory (PTF) is an optical wide-field variability survey carried out using a camera with a 7.8 square degree field of view mounted on the 48-in Oschin Schmidt telescope at Palomar Observatory. One of the key goals of this survey is to conduct high-cadence monitoring of the sky in order to detect optical transient sources shortly after they occur. Here, we describe the real-time capabilities of the PTF and our related rapid multiwavelength follow-up programs, extending from the radio to the gamma-ray bands. We present as a case study observations of the optical transient PTF10vdl (SN 2010id), revealed to be a very young core-collapse (Type II-P) supernova having a remarkably low luminosity. Our results demonstrate that the PTF now provides for optical transients the real-time discovery and rapid-response follow-up capabilities previously reserved only for high-energy transients like gamma-ray bursts.
description: ApJ, in press; all spectroscopic data available from the Weizmann Institute of Science Experimental Astrophysics Spectroscopy System (WISEASS; http://www.weizmann.ac.il/astrophysics/wiseass/)
The outburst of an embedded low-mass YSO in L1641
Creators: name: Garatti, A. Caratti o
name: Lopez, R. Garcia
name: Scholz, A.
name: Giannini, T.
name: Eislöffel, J.
name: Nisini, B.
name: Massi, F.
name: Antoniucci, S.
name: Ray, T. P.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Strong outbursts in very young and embedded protostars are rare and not yet fully understood. They are believed to originate from an increase of the mass accretion rate onto the source. We report the discovery of a strong outburst in a low-mass embedded young stellar object (YSO), namely 2MASS-J05424848-0816347 or [CTF93]216-2, as well as its photometric and spectroscopic follow-up. Using near- to mid-IR photometry and NIR low-resolution spectroscopy, we monitor the outburst, deriving its magnitude, duration, as well as the enhanced accretion luminosity and mass accretion rate. [CTF93]216-2 increased in brightness by ~4.6, 4.0, 3.8, and 1.9 mag in the J, H, Ks bands and at 24 um, respectively, corresponding to an L_bol increase of ~20 L_sun. Its early spectrum, probably taken soon after the outburst, displays a steep almost featureless continuum, with strong CO band heads and H_2O broad-band absorption features, and Br gamma line in emission. A later spectrum reveals more absorption features, allowing us to estimate T_eff~3200 K, M~0.25 M_sun, and mass accretion rate~1.2x10^{-6} M_sun yr^{-1}. This makes it one of the lowest mass YSOs with a strong outburst so far discovered.
description: To be published in A&A letter; 5 pages, 4 figures
Anomalous Scaling on a Spatiotemporally Chaotic Attractor
Creators: name: Wittenberg, Ralf W.
name: Poon, Ka-Fai
Publisher: name: arXiv
Year: 2010
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: The Nikolaevskiy model for pattern formation with continuous symmetry exhibits spatiotemporal chaos with strong scale separation. Extensive numerical investigations of the chaotic attractor reveal unexpected scaling behavior of the long-wave modes. Surprisingly, the computed amplitude and correlation time scalings are found to differ from the values obtained by asymptotically consistent multiple-scale analysis. However, when higher-order corrections are added to the leading-order theory of Matthews and Cox, the anomalous scaling is recovered.
description: 6 pages, 6 figures
A case study of unavoidable accidents of autonomous vehicles
Creators: name: Sun, Zhiwei
name: Lin, Miao
name: Chen, Wentao
name: Dai, Bing
name: Ying, Pengfei
name: Zhou, Qing
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Space Science
subject: Medicine
subject: Chemical Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified

description: Objective: Autonomous driving technology eliminates human errors, and thus it is a promising solution for reducing road traffic fatalities and injuries. While future autonomous driving technology may be able to reduce the number of collision accidents, it will not be able to avoid all collision accidents. This study is aimed to demonstrate why some accidents will still be unavoidable even with advanced perceiving and controlling capabilities. Methods: Because fully autonomous vehicles are currently in the laboratory stage, we used the prospective method to study the unavoidable accident of autonomous vehicles. Suitable traffic accident cases were screened from the China In-Depth Accident Study (CIDAS). Videos of the accidents were analyzed and the accidents were reconstructed using PC-Crash software. We assumed that target vehicle possesses near-perfect autonomous driving capabilities. Unavoidable accidents were determined based on vehicle dynamics and traffic constraints. The time from perceiving hazard to collision was calculated for each accident. Results: Among the 112 accidents screened, 15 cases of unavoidable accidents were identified. Three typical cases are presented in detail in this study. Based on the reasons why the target vehicles cannot avoid the collisions, we classified the unavoidable accidents into time-limit type and space-limit type. Time-limit means that vehicle cannot stop or steer out of danger in time, and space-limit means that the traffic environment does not have sufficient space for vehicle to avoid collision. Conclusions: Collision accidents will still occur even with perfect autonomous driving technology. We used the prospective method to investigate scenarios and characteristics of unavoidable accidents of autonomous vehicles. The time-limit type and the space-limit type were identified as two categories of unavoidable accidents. For the time-limit unavoidable accidents, the time from perceiving hazard to collision is typically not longer than 1.5s. The characteristics of unavoidable accidents and the estimated pre-crash warning time can provide some reference for establishing future occupant protection strategies. This study also showed the limitations of active safety and the necessity of passive safety.
Magnetic structure of azurite above the 1/3 magnetization plateau
Creators: name: Aimo, F.
name: Krämer, S.
name: Klanjsek, M.
name: Horvatic, M.
name: Berthier, C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The transition from the 1/3 magnetization plateau towards the saturation magnetization in azurite has been studied by low-temperature, high-magnetic-field, high-frequency proton nuclear magnetic resonance (NMR). The observed symmetrical splitting of the NMR spectra is incompatible with the longitudinal incommensurate order appearing when the longitudinal correlation function becomes dominant over the transverse one, which is the expected framework for the existence of the 2/3 magnetization plateau. The spectra are rather interpreted in terms of a more standard transverse antiferromagnetic (canted) order.
Solution of the Bosonic and Algebraic Hamiltonians by using AIM
Creators: name: Koc, Ramazan
name: Tutunculer, Hayriye
name: Olgar, Eser
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We apply the notion of asymptotic iteration method (AIM) to determine eigenvalues of the bosonic Hamiltonians that include a wide class of quantum optical models. We consider solutions of the Hamiltonians, which are even polynomials of the fourth order with the respect to Boson operators. We also demonstrate applicability of the method for obtaining eigenvalues of the simple Lie algebraic structures. Eigenvalues of the multi-boson Hamiltonians have been obtained by transforming in the form of the single boson Hamiltonian in the framework of AIM.
Coarsening to Chaos-Stabilized Fronts
Creators: name: Poon, Ka-Fai
name: Wittenberg, Ralf W.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We investigate a model for pattern formation in the presence of Galilean symmetry proposed by Matthews and Cox [Phys.\ Rev.\ E \textbf{62}, R1473 (2000)], which has the form of coupled generalized Burgers and Ginzburg-Landau-type equations. With only the system size $L$ as a parameter, we find distinct "small-$L$" and "large-$L$" regimes exhibiting clear differences in their dynamics and scaling behavior. The long-time statistically stationary state contains a single $L$-dependent front, stabilized globally by spatiotemporally chaotic dynamics localized away from the front. For sufficiently large domains, the transient dynamics include a state consisting of several viscous shock-like structures which coarsens gradually, before collapsing to a single front when one front absorbs the others.
description: 4 pages, 7 figures; submitted
Near-tropical subsurface ice on Mars
Creators: name: Vincendon, Mathieu
name: Mustard, John
name: Forget, François
name: Kreslavsky, Mikhail
name: Spiga, Aymeric
name: Murchie, Scott
name: Bibring, Jean-Pierre
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Near-surface perennial water ice on Mars has been previously inferred down to latitudes of about 45° and could result from either water vapor diffusion through the regolith under current conditions or previous ice ages precipitations. In this paper we show that at latitudes as low as 25° in the southern hemisphere buried water ice in the shallow (< 1 m) subsurface is required to explain the observed surface distribution of seasonal CO2 frost on pole facing slopes. This result shows that possible remnants of the last ice age, as well as water that will be needed for the future exploration of Mars, are accessible significantly closer to the equator than previously thought, where mild conditions for both robotic and human exploration lie.
Abelian Manna model on various lattices in one and two dimensions
Creators: name: Huynh, Hoai Nguyen
name: Pruessner, Gunnar
name: Chew, Lock Yue
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We perform a high-accuracy moment analysis of the avalanche size, duration and area distribution of the Abelian Manna model on eight two-dimensional and four one-dimensional lattices. The results provide strong support to establish universality of exponents and moment ratios across different lattices and a good survey for the strength of corrections to scaling which are notorious in the Manna universality class. The results are compared against previous work done on Manna model, Oslo model and directed percolation. We also confirm hypothesis of various scaling relations.
description: 16 pages, 3 figures, 7 tables, submitted to Journal of Statistical Mechanics
A Survey of IUE Spectra of the Active Binary System UX Arietis
Creators: name: Ekmekçi, Fehmi
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: To investigate the ultraviolet (UV) activity of the bright, non-eclipsing, double-lined spectroscopic binary system UX Ari, IUE spectra (194 images) were taken from the IUE archive. The spectra, obtained during the period 1978-1996, show emission lines originating in the chromosphere and transition region. The long-wavelength low dispersion spectra were examined for ultraviolet excess by comparing the UV continuum level of UX Ari with the levels of $κ$ Cet and $η$ Cep in the spectral range 2100 $Å$ - 3200 $Å$ . The individual MgII h and k emission-line fluxes of component stars show that the contributions to the activity of the system for G5 V and K0 IV are about 20% and 80%, respectively. Apart from the flare event observed on 1979 Jan 1, there are some flux enhancements in the years 1987, 1991 and 1994 which may suggest existence of a periodicity of about 7-9 years. Examination of the ultraviolet excess in the system showed that there is some UV excess in UX Ari, which varies from 1% up to 24% with the exception of two images which showed no UV excess. The results revealed that there was an agreement on the source of emission regions which could be attributed to the magnetic activity. The contribution of G5 V and K0 IV components to the MgII activity of the system suggests a need to take into consideration the spot distribution not only on the surface of K0 IV but also on the surface of G5 V component of UX Ari.
description: 15 pages, 10 figures
Direct Evidence for Modulated Irradiation of Secondary Components in Dwarf Novae during Superoutbursts
Creators: name: Smak, J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Contribution from the irradiated secondary component is detected in the light curves of five dwarf novae observed during superoutbursts. Their superhump light curves show that irradiation is modulated with the superhump phase. This strengthens the new interpretation of superhumps (Smak 2009) as being due to irradiation controlled mass transfer rate resulting in modulated dissipation of the kinetic energy of the stream.
description: 10 pages, 6 figures; submitted to "Acta Astronomica"
Poetic play communities : bpNichol’s Fraggle Rock screenplays
Creators: name: McEwan, Andrew
Publisher: name: University of British Columbia
Year: 2014

description: This thesis analyzes the screenplays written by Canadian experimental poet bpNichol for the Jim Henson produced children’s television program Fraggle Rock between 1982 and 1986. Nichol’s Fraggle Rock writing represents a moment in his multi-genre oeuvre at which to observe his poetics and creative philosophies on display in a popular cultural setting. The ludic poetics exhibited in both the form and narratives of the screenplays display the ways in which playful engagement with language may create interactive communities of play. Through shared attitudes towards language, language games, nonsense, and absurdity, play and play communities emerge as a preoccupation of Nichol’s work within the Fraggle Rock narrative constraints, and links them with his poetry and poetics. To explore Nichol’s specific figuring of play, this thesis surveys theories of play from diverse theoretical backgrounds to develop a ludic model based in player-to-player relationships and communication. It also analyzes canonical treatments of play to mark off the concerns of the current study, and address the ambiguities of the term. Nichol’s Fraggle Rock screenplays employ song, language, and poetry as forms of community experience and engagement that foster play relationships, and allow individuals to collectively manipulate the forms of their communication. These language games and language play constitute the Fraggle world of Nichol’s episodes and highlight the play community as a paracosm based in shared manipulation of communicative conventions. Further, this thesis analyzes the ”pataphysical elements of the Fraggle Rock play community in Nichol’s episodes, and how these provide a playfully creative and critical angle with which to view the normative “human” world.
Transmission through a quantum dot molecule embedded in an Aharonov-Bohm interferometer
Creators: name: Lovey, Daniel A.
name: Gomez, Sergio S.
name: Romero, Rodolfo H.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study theoretically the transmission through a quantum dot molecule embedded in the arms of an Aharonov-Bohm four quantum dot ring threaded by a magnetic flux. The tunable molecular coupling provides a transmission pathway between the interferometer arms in addition to those along the arms. From a decomposition of the transmission in terms of contributions from paths, we show that antiresonances in the transmission arise from the interference of the self-energy along different paths and that application of a magnetic flux can produce the suppression of such antiresonances. The occurrence of a period of twice the quantum of flux arises to the opening of transmission pathway through the dot molecule. Two different connections of the device to the leads are considered and their spectra of conductance are compared as a function of the tunable parameters of the model.
description: 8 pages, 5 figures
From twistors to twisted geometries
Creators: name: Freidel, Laurent
name: Speziale, Simone
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In a previous paper we showed that the phase space of loop quantum gravity on a fixed graph can be parametrized in terms of twisted geometries, quantities describing the intrinsic and extrinsic discrete geometry of a cellular decomposition dual to the graph. Here we unravel the origin of the phase space from a geometric interpretation of twistors.
description: 9 pages
Preparation of Kepler lightcurves for asteroseismic analyses
Creators: name: Garcia, R. A.
name: Hekker, S.
name: Stello, D.
name: Gutierrez-Soto, J.
name: Handberg, R.
name: Huber, D.
name: Karoff, C.
name: Uytterhoeven, K.
name: Appourchaux, T.
name: Chaplin, W. J.
name: Elsworth, Y.
name: Mathur, S.
name: Ballot, J.
name: Christensen-Dalsgaard, J.
name: Gilliland, R. L.
name: Houdek, G.
name: Jenkins, J. M.
name: Kjeldsen, H.
name: McCauliff, S.
name: Metcalfe, T.
name: Middour, C. K.
name: Molenda-Zakowicz, J.
name: Monteiro, M. J. P. F. G.
name: Smith, J. C.
name: Thompson, M. J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The Kepler mission is providing photometric data of exquisite quality for the asteroseismic study of different classes of pulsating stars. These analyses place particular demands on the pre-processing of the data, over a range of timescales from minutes to months. Here, we describe processing procedures developed by the Kepler Asteroseismic Science Consortium (KASC) to prepare light curves that are optimized for the asteroseismic study of solar-like oscillating stars in which outliers, jumps and drifts are corrected.
description: Accepted for publication in MNRAS. 5 pages, 2 figures
Knowledge translation in action : cancer biology and systems pharmacology at the National Center for Advancing Translational Science
Creators: name: Chiappetta, Margaret Elizabeth
Publisher: name: University of British Columbia
Year: 2014

description: The need for novel diagnostic and therapeutic drugs with the potential to combat increasingly prevalent or particularly insidious diseases has grown in recent years. Concurrently, the issue of translating scientific knowledge from “bench to bedside” has become increasingly salient. In 2011, the U.S. National Institutes of Health created the National Center for Advancing Translational Science in an effort to remedy the recalcitrant gaps between fundamental laboratory research and late-stage clinical trial, thereby dramatically reducing the amount of time and expense needed to develop efficacious pharmaceutical prototypes for a range of emerging, re-emerging, and chronic diseases. However, the realities of pharmaceutical development are incongruous with the expectations of the lay public that even the most fundamental scientific research yield results with immediate social and commercial value. Traditional linear models of progress overlook both the epistemic nature of scientific innovation and the significance of the socio-economic supply and demand factors driving research endeavours. The aim of this dissertation is to underline the epistemic and socio-economic characteristics of translational science – specifically in the context of research targeting novel oncology therapeutics and diagnostics – through the lens of Science and Technology Studies. In focusing on research in cancer biology funded by the National Center for Advancing Translational Science, this thesis highlights the significance of Mode 2 or “post-academic” science, and by extension the roles of interdisciplinarity and applicability, and the commodification of scientific knowledge, that arise in the process of translating scientific knowledge.
Evidence of deep water penetration in silica during stress corrosion fracture
Creators: name: Lechenault, F.
name: Rountree, C. L.
name: Cousin, F.
name: Bouchaud, J. -P.
name: Ponson, L.
name: Bouchaud, E.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We measure the thickness of the heavy water layer trapped under the stress corrosion fracture surface of silica using neutron reflectivity experiments. We show that the penetration depth is 65-85 ångströms, suggesting the presence of a damaged zone of $\approx$ 100 ångströms extending ahead of the crack tip during its propagation. This estimate of the size of the damaged zone is compatible with other recent results.
description: 4 pages, 3 figures
Reversal of Klein reflection in bilayer graphene
Creators: name: Agrawal, Neetu
name: Grover, Sameer
name: Ghosh, Sankalpa
name: Sharma, Manish
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Whereas massless Dirac fermions in monolayer graphene exhibit Klein tunneling when passing through a potential barrier upon normal incidence, such a barrier totally reflects massive Dirac fermions in bilayer graphene due to difference in chirality. We show that, in the presence of magnetic barriers, such massive Dirac fermions can have transmission through even at normal incidence. The general consequence of this behaviour for multilayer graphene consisting of massless and massive modes are mentioned. We also briefly discuss the effect of a bias voltage on such magnetotransport.
description: 10 double space single column latexed pages, 15 eps files in four figures
Nutzung regenerativer Energiequellen und Wasserstofftechnik 2023
Creators: name: Gulden, Johannes
Publisher: name: Hochschule Stralsund
Year: 2023
Subjects: subject: 333.7 Natural resources, energy and environment
subject: 624 Structural and Environmental Engineering

description: Der Tagungsband der REGWA Konferenz 2023 dokumentiert das 30. Jubiläum des Symposiums für "Regenerative Energien und Wasserstofftechnologien" an der Hochschule Stralsund. Zielgruppen sind Interessierte, die den aktuellen Stand über innovative Entwicklungen im Bereich erneuerbarer Energien und Wasserstofftechnologien diskutieren möchten. Der Tagungsband umfasst Beiträge zu rechtlichen Entwicklungen der Energiewende sowie zu Wasserstoffprojekten, Dekarbonisierung der Wärmeversorgung, Speichertechnologien, Elektromobilität und Stromnetze.
Forming the first planetary systems: debris around Galactic thick disc stars
Creators: name: Sheehan, C. K. W.
name: Greaves, J. S.
name: Bryden, G.
name: Rieke, G. H.
name: Su, K. Y. L.
name: Wyatt, M. C.
name: Beichman, C. A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The thick disc contains stars formed within the first Gyr of Galactic history, and little is known about their planetary systems. The Spitzer MIPS instrument was used to search 11 of the closest of these old low-metal stars for circumstellar debris, as a signpost that bodies at least as large as planetesimals were formed. A total of 22 thick disc stars has now been observed, after including archival data, but dust is not found in any of the systems. The data rule out a high incidence of debris among star systems from early in the Galaxy's formation. However, some stars of this very old population do host giant planets, at possibly more than the general incidence among low-metal Sun-like stars. As the Solar System contains gas giants but little cometary dust, the thick disc could host analogue systems that formed many Gyr before the Sun.
description: accepted by MNRAS Letters; 5 pages, 4 figures
Capillary instability in a two-component Bose-Einstein condensate
Creators: name: Sasaki, Kazuki
name: Suzuki, Naoya
name: Saito, Hiroki
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Capillary instability and the resulting dynamics in an immiscible two-component Bose-Einstein condensate are investigated using the mean-field and Bogoliubov analyses. A long, cylindrical condensate surrounded by the other component is dynamically unstable against breakup into droplets due to the interfacial tension arising from the quantum pressure and interactions. A heteronuclear system confined in a cigar-shaped trap is proposed for realizing this phenomenon experimentally.
description: 7 pages, 6 figures
Alcohol use among community dwelling older adults
Creators: name: Plested, Sushma
Publisher: name: University of British Columbia
Year: 2014

description: Alcohol use among community dwelling older adults is fast becoming a major health concern in Canada. It is fast becoming a major precursor for social dysfunction as many have experienced destructive relationships, financial despair, and social isolation. This population often falls victim to ageist views held by health care providers, delaying recognition and assistance in relation to alcohol misuse. Perhaps the most important gap is the lack of qualitative research that will study the experience of alcohol misuse in older adults from their perspective and try to understand their readiness for change. This critical ethnography explored the attitudes, beliefs, behaviours, and experiences of alcohol use among community dwelling older adults within their social, cultural, or political context with an aim to elicit a change during the process. Data were collected through semi-structured interviews with a total of eighteen individuals; 1) study participants (N=11) that were older adults and dwelled in an urban center in the Interior of British Columbia, and who used alcohol, and 2) key informants (N=7) who had extensive experience with substance use issues working in a variety of fields within the community. Audio-taped interviews were transcribed and analyzed. Using Carspecken’s framework of analysis, three main themes and thirteen subthemes were identified. This study examined the role of environmental factors early in older adults’ life and their influence in forming beliefs, attitudes, and behaviours, related to alcohol use later in life. It examined the older adults’ drinking patterns, consequences of alcohol use, additional substance use, and barriers to seeking assistance. Findings in this study indicated that early adverse life experiences increase the chances of alcohol misuse later in life. Adjunct use of other substances indicated the changing characteristics of this population and the potential increase in health care costs as baby boomers become a predominant faction of the older adult population. Results of the study indicated improved access to nursing services at the primary health care level, a change of physicians’ attitudes, increased resources, and community support would encourage this population to seek out help. These themes have implications for nursing practice, education, nursing administration, and further research.
Stochastic sigma-convergence and applications
Creators: name: Sango, Mamadou
name: Woukeng, Jean Louis
Publisher: name: arXiv
Year: 2011
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: Dynamical Systems (math.DS)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 35J25, 35R60, 35B40, 46J10, 60H25

description: Motivated by the fact that in nature almost all phenomena behave randomly in some scales and deterministically in some other scales, we build up a framework suitable to tackle both deterministic and stochastic homogenization problems simultaneously, and also separately. Our approach, the stochastic sigma-convergence, can be seen either as a multiscale stochastic approach since deterministic homogenization theory can be seen as a special case of stochastic homogenization theory (see Theorem 3), or as a conjunction of the stochastic and deterministic approaches, both taken globally, but also each separately. One of the main applications of our results is the homogenization of a model of rotating fluids.
description: 49 pages
Improving In-Domain Data Selection for Small In-Domain Sets
Creators: name: Mediani, Mohammed
name: Winebarger, Joshua
name: Waibel, Alexander
Publisher: name: Association for Computational Linguistics (ACL)
Year: 2014

description: Finding sufficient in-domain text data for language modeling is a recurrent challenge. Some methods have already been proposed for selecting parts of out-of-domain text data most closely resembling the in-domain data using a small amount of the latter. Including this new “near-domain” data in training can potentially lead to better language model performance, while reducing training resources relative to incorporating all data. One popular, state-of-the-art selection process based on cross-entropy scores makes use of in-domain and out-ofdomain language models. In order to compensate for the limited availability of the in-domain data required for this method, we introduce enhancements to two of its steps. Firstly, we improve the procedure for drawing the outof-domain sample data used for selection. Secondly, we use word-associations in order to extend the underlying vocabulary of the sample language models used for scoring. These enhancements are applied to selecting text for language modeling of talks given in a technical subject area. Besides comparing perplexity, we judge the resulting language models by their performance in automatic speech recognition and machine translation tasks. We evaluate our method in different contexts. We show that it yields consistent improvements, up to 2% absolute reduction in word error rate and 0.3 Bleu points. We achieve these improvements even given a much smaller in-domain set.
Three years Swift-BAT Survey of AGN: reconciling theory and observations?
Creators: name: Burlon, D.
name: Ajello, M.
name: Greiner, J.
name: Comastri, A.
name: Merloni, A.
name: Gehrels, N.
name: .
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: It is well accepted that unabsorbed as well as absorbed AGN are needed to explain the nature and the shape of the Cosmic X-ray background, even if the fraction of highly absorbed objects (dubbed Compton-thick sources) substantially still escapes detection. We derive and analyze the absorption distribution using a complete sample of AGN detected by Swift-BAT in the first three years of the survey. The fraction of Compton-thick AGN represents only 4.6% of the total AGN population detected by Swift-BAT. However, we show that once corrected for the bias against the detection of very absorbed sources the real intrinsic fraction of Compton-thick AGN is 20$^{+9}_{-6}$%. We proved for the first time (also in the BAT band) that the anti-correlation of the fraction of absorbed AGN and luminosity it tightly connected to the different behavior of the luminosity functions (XLFs) of absorbed and unabsorbed AGN. This points towards a difference between the two subsamples of objects with absorbed AGN being, on average, intrinsically less luminous than unobscured ones. Moreover the XLFs show that the fraction of obscured AGN might also decrease at very low luminosity. This can be successfully interpreted in the framework of a disk cloud outflow scenario as the disappearance of the obscuring region below a critical luminosity. Our results are discussed in the framework of population synthesis models and the origin of the Cosmic X-ray Background.
description: Accepted for publication by ApJ. Contains 17 figures and 5 tables
Triggered Star Formation and Dust around Mid-Infrared-Identified Bubbles
Creators: name: Watson, C.
name: Hanspal, U.
name: Mengistu, A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We use Two Micron All Sky Survey, GLIMPSE, and MIPSGAL survey data to analyze the young stellar object (YSO) and warm dust distribution around several mid-infrared-identified bubbles. We identify YSOs using J-band to 8 um photometry and correlate their distribution relative to the PDR (as traced by diffuse 8 um emission) which we assume to be associated with and surround a HII region. We find that only 20% of the sample HII regions appear to have a significant number of YSOs associated with their PDRs, implying that triggered star formation mechanisms acting on the boundary of the expanding HII region do not dominate in this sample. We also measure the temperature of dust inside 20 HII regions using 24 um and 70 um MIPSGAL images. In eight circularly symmetric sources we analyze the temperature distribution and find shallower temperature gradients than is predicted by an analytic model. Possible explanations of this shallow temperature gradient are a radially dependent grain-size distribution and/or non-equilibrium radiative processes.
description: 35 pages, 17 figures, accepted for publication in ApJ
N-alkyl substituted cyclic and oligomeric perhydridosilazanes and silicon nitride films formed therefrom
Creators: name: Arkles, Barry
name: Pan, Youlin
name: Jove, Fernando
Publisher: name: Zenodo
Year: 2021
Subjects: Organosilicon Chemistry
Silicon Nitride
Chemical Vapor Deposition (CVD)
Triisopropylcyclotrisilazane (TICZ)

description: Novel N-alkyl substituted perhydridocyclic silazanes, oligomeric N-alkyl perhydridosilazane compounds, and N-alkylaminodihydridohalosilanes, and a method for their synthesis are provided. The novel compounds may be used to form high silicon nitride content films by thermal or plasma induced decomposition. Keywords: Organosilicon; Silicon Nitride; Triisopropylcyclotrisilazane
Zeeman-driven Lifshitz transition: A scenario for the Fermi-surface reconstruction in YbRh2Si2
Creators: name: Hackl, Andreas
name: Vojta, Matthias
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The heavy-fermion metal YbRh2Si2 displays a field-driven quantum phase transition where signatures of a Fermi-surface reconstruction have been identified, often interpreted as breakdown of the Kondo effect. We argue that instead many properties of the material can be consistently described assuming a Zeeman-driven Lifshitz transition of narrow heavy-fermion bands. Using a suitable quasiparticle model, we find a smeared jump in the Hall constant and lines of maxima in susceptibility and specific heat, very similar to experimental data. An intermediate non-Fermi liquid regime emerges due to the small effective Fermi energy near the transition. Further experiments to discriminate the different scenarios are proposed.
description: 4 pages, 3 figs