cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Circumbinary Chaos: Using Pluto's Newest Moon to Constrain the Masses of Nix & Hydra
Creators: name: Youdin, Andrew N.
name: Kratter, Kaitlin M.
name: Kenyon, Scott J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The Pluto system provides a unique local laboratory for the study of binaries with multiple low mass companions. In this paper, we study the orbital stability of P4, the most recently discovered moon in the Pluto system. This newfound companion orbits near the plane of the Pluto-Charon binary, roughly halfway between the two minor moons Nix and Hydra. We use a suite of few body integrations to constrain the masses of Nix and Hydra, and the orbital parameters of P4. For the system to remain stable over the age of the Solar System, the masses of Nix and Hydra likely do not exceed 5e16 kg and 9e16 kg, respectively. These upper limits assume a fixed mass ratio between Nix and Hydra at the value implied by their median optical brightness. Our study finds that stability is more sensitive to their total mass and that a downward revision of Charon's eccentricity (from our adopted value of 0.0035) is unlikely to significantly affect our conclusions. Our upper limits are an order of magnitude below existing astrometric limits on the masses of Nix and Hydra. For a density at least that of ice, the albedos of Nix and Hydra would exceed 0.3. This constraint implies they are icy, as predicted by giant impact models. Even with these low masses, P4 only remains stable if its eccentricity e < 0.02. The 5:1 commensurability with Charon is particularly unstable, Combining stability constraints with the observed mean motion places the preferred orbit for P4 just exterior to the 5:1 resonance. These predictions will be tested when the New Horizons satellite visits Pluto. Based on the results for the Pluto-Charon system, we expect that circumbinary, multi-planet systems will be more widely spaced than their singleton counterparts. Further, circumbinary exoplanets close to the three-body stability boundary, such as those found by Kepler, are less likely to have other companions nearby.
description: 12 pages, 7 figures
Statistical Approaches for Data Aggregation in Wireless Sensor Networks
Creators: name: Wickrema Seneviratne, Chatura Kalyana
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Engineering--Electronics and Electrical
subject: Statistical Model
subject: Wireless Sensor Networks
subject: Data Aggregation
subject: Imperfect Enviornment

description: This thesis provides novel statistical signal processing techniques for pdf-unaware data aggregation in Wireless Sensor Networks (WSNs) in order to improve the accuracy and energy consumption. Firstly, a model is developed for multi-bit data aggregation quantifying the three major errors namely; measurement errors, quantization errors and channel errors. Analytical expressions for first and second order statistics are obtained. An estimator is derived to estimate parameters for a single hop network. Simulation results confirm that the proposed estimator outperforms the conventional estimators. The merit of the model is tested in power scheduling problem to demonstrate improvements in energy saving. Secondly, the performance of a most commonly used data aggregation method is analyzed for multi-hop WSNs by employing techniques such as retransmissions and redundant sensor deployments. However, the improvement in data accuracy is limited. Using the proposed model and estimator, improvement is observed in data accuracy with enhanced network lifetime. Thirdly, a decision aggregation rule is modelled for the received binary decisions, by modelling received binary decisions incorporating measurement and transmission error probabilities. Its performance in single hop homogeneous and heterogeneous networks is very close to that of the optimum majority and the weighted majority rules. Moreover, the complexity of the proposed rule is lower than the optimal rules. A bit level aggregation method is also introduced for multi-bit data aggregation, eliminating the computationally expensive data encoding and decoding. This method consistently performs well compared to the numerical multi-bit data aggregation.
Conductance and Capacitance Effects of Acute, Electrical, Carotid Baroreflex Stimulation
Creators: name: Burgoyne, Steven John Joseph
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Animal Physiology
subject: Medicine and Surgery
subject: Engineering--Biomedical
subject: venous capacitance
subject: baroreflex
subject: aortic conductance

description: Baroreflex activation therapy (BAT) is effective in resistant hypertension; we hypothesized that BAT increases both venous capacitance and arterial conductance. We measured aortic pressure and flow and inferior vena caval flow and used a modified Brooksby-Donald technique to evaluate sub-diaphragmatic blood volume. Data were recorded with BAT, and with sodium nitroprusside (SNP) and Angiotensin II (Ang II) infusions, alone and with BAT. BAT substantially increased venous capacitance and arterial conductance. SNP also increased venous capacitance and arterial conductance. During SNP infusion BAT remained effective, further decreasing blood pressure and increasing capacitance and conductance. Ang II decreased both capacitance and conductance. During Ang II infusion, increased BAT reversed the decrease in venous capacitance while restoring BP completely and conductance to 80% of baseline. BAT decreases blood pressure and increases arterial conductance and venous capacitance, even when combined with powerful vasoactive drugs. These may be important effects in hypertension.
Developing a Systematic Sampling Framework for Terrestrial Gastropods in the Canadian Arctic
Creators: name: Sullivan, Joshua
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: Parasitology
subject: Arctic
subject: Gastropod
subject: Deroceras laeve
subject: Intermediate Host
subject: Protostrongylidae

description: Two protostrongylid parasites of Arctic ungulates, Umingmakstrongylus pallikuukensis and Varestrongylus eleguneniensis, were recently discovered in muskoxen on Victoria Island, Nunavut. The subsequent range expansion and increasing prevalence of these lungworms on the island suggested that the temperature-dependent rate of larval development in the gastropod intermediate host was no longer constraining their range to the Arctic mainland. Thus, to determine if the ecology of the gastropod intermediate host would facilitate or restrict the further expansion and establishment of these parasites, a better understanding of the distribution, diversity and abundance of terrestrial gastropods on Victoria Island was needed. However, a description of the efficacy of gastropod sampling techniques on the tundra was lacking. Therefore, my research describes the first strategic sampling framework for assessing gastropod ecology in the Arctic. Additionally, I analyzed the influence of extrinsic factors on gastropod capture rates and described new geographical records for the intermediate host, Deroceras laeve. Keywords: Arctic, Gastropod, Deroceras laeve, Intermediate Host, Protostrongylidae
The Canadian language benchmarks and English for academic purposes : a socio-semiotic approach
Creators: name: Lima, Adriana Monteiro
Publisher: name: University of British Columbia
Year: 2010

description: In the British Columbia context, English for Academic Purposes (EAP) curricula have been articulated and aligned to the Canadian Language Benchmarks (CLB) in an attempt to facilitate transference nationwide (See the Articulation Guide for English as a Second Language Programs in the British Columbia Post-secondary Transfer System, 2008). Because the CLB is designed to be used as a standardized framework to assess ESL learners' proficiency across Canada, learners may need to achieve CLB levels 8-9 to enter mainstream academic programs. Nevertheless, CLBs have only partially impacted on curricula. This study examined EAP programs in relation to the CLB in a local BC college. It investigated the use of the CLB in the EAP program syllabus and its influence on curricular decisions. I interviewed teachers and administrators using structured-questions that targeted their perceptions of a) the CLB concept and critiques and b) theoretical and practical issues that affect the functionality of the CLB when used for academic purposes. The findings show that some of the reasons for implementational shortcomings seem to involve the uncertainties and ambiguities of the CLB Theoretical Framework. In addition, participants voiced their concerns about the usefulness of CLBs for preparing learners to achieve academic readiness, questioning the benchmarks functionality in such context and adopting other frameworks. Thus, I explored some of the dilemmas participants face having to assess how learners function from the CLB 'can do' standpoint in relation to a given, more generic context, i.e. English for academic purposes. Nevertheless, the findings revealed that the CLB has partially impacted on the syllabus of programs, which also prepare learners to enter mainstream post-secondary courses, namely Applied programs. For this reason, I claim that if a socio-semiotic approach would be taken in account, examining the contexts where communication takes place, these practitioners could be better equipped to achieve the goals of the program, as well as those of the learners. Additionally, because the CLB outcomes are not goal-oriented, if a clear purpose were to be achieved, one could be able to foresee implementational demands in relation to contextual needs.
The effect of limb length on the cost of locomotion and gait in the Longshanks mouse.
Creators: name: Sparrow, Leah
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Biology
subject: Anatomy
subject: Longshanks
subject: morphology
subject: Locomotor
subject: Performance
subject: Function

description: A large amount of variation in limb length between terrestrial mammals has been observed. Increased limb length may have evolved as a mechanism to reduce the cost of transport (COT), allowing for energy allocation to other important functions. The relationship between energy expenditure and limb length was investigated at the population level in the Longshanks mouse. This unique line of mice has on average 13% longer tibia than a randomly bred Control line. The hypothesis that the Longshanks mice would have a lower COT and increased stride length was tested here. The results show that the Longshanks mice (N=19) did have a lower COT (-24%), a longer stride (+7%) and a lower stride frequency (-5-7%) when compared to the Control mice (N=22). The results provide support for a relationship between limb length and locomotor performance and form an important contribution to the understanding of selective pressures shaping limb length.
Local Runup Amplification By Resonant Wave Interactions
Creators: name: Stefanakis, Themistoklis
name: Dias, Frédéric
name: Dutykh, Denys
Publisher: name: arXiv
Year: 2011
Subjects: subject: Classical Physics (physics.class-ph)
subject: Pattern Formation and Solitons (nlin.PS)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Until now the analysis of long wave runup on a plane beach has been focused on finding its maximum value, failing to capture the existence of resonant regimes. One-dimensional numerical simulations in the framework of the Nonlinear Shallow Water Equations (NSWE) are used to investigate the Boundary Value Problem (BVP) for plane and non-trivial beaches. Monochromatic waves, as well as virtual wave-gage recordings from real tsunami simulations, are used as forcing conditions to the BVP. Resonant phenomena between the incident wavelength and the beach slope are found to occur, which result in enhanced runup of non-leading waves. The evolution of energy reveals the existence of a quasi-periodic state for the case of sinusoidal waves, the energy level of which, as well as the time required to reach that state, depend on the incident wavelength for a given beach slope. Dispersion is found to slightly reduce the value of maximum runup, but not to change the overall picture. Runup amplification occurs for both leading elevation and depression waves.
description: 10 pages, 7 Figures. Accepted to Physical Review Letters. Other author's papers can be downloaded at http://www.lama.univ-savoie.fr/~dutykh/
title: Pflanzen für die Bioökonomie – Welche Herausforderungen ergeben sich für die Qualität nachwachsender Rohstoffe? 50. Vortragstagung DGQ - Abstracts
Creators: name: Deutsche Gesellschaft Für Qualitätsforschung (Pflanzliche Nahrungsmittel) E.V.
name: Dechema E.V. ProcessNet-Fachgruppe Phytoextrakte – Produkte Und Prozesse
Publisher: name: Julius Kühn-Institut
Year: 2016

description: Berichte aus dem Julius Kühn-Institut 183
Warm Absorber Energetics in Broad Line Radio Galaxies
Creators: name: Torresi, E.
name: Grandi, P.
name: Costantini, E.
name: Palumbo, G. G. C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We review the soft X-ray properties of 3C 390.3, 3C 120, 3C 382 and 3C 445, the only Broad Line Radio Galaxies (BLRG) for which good quality gratings data are currently available. The XMM-Newton/RGS data of 3C 390.3 and 3C 120 were re-analyzed searching for warm absorbers, already discovered in 3C 382 and 3C 445. We confirm the absence of ionized absorption features in 3C 120, but find signatures of outflowing gas (v_out \sim 10^2 km s^-1) in 3C 390.3. Its warm absorber (Logξ\sim 2 erg cm s^-1, N_H\sim 10^20 cm^-2), similar to that observed in 3C 382, is probably placed in the Narrow Line Regions. Its gas content is slower and less dense than the accretion disk wind discovered in 3C 445. Independently from the location of the warm gas, the outflowing masses (\dotM_out) of BLRGs are significantly (but improbably) predominant with respect to the accretion masses (\dotM_acc), suggesting a clumpy configuration of the warm absorber. However, even assuming overestimated values of \dotM_out, the kinetic luminosity of the outflow (\dotE_out) is well below 1% of the kinetic power of the jet (P_jet). Thus, the jet remains the major driver of the radio-loud AGN feedback at least on pc scale and beyond. The warm absorber parameters (N_H, ξ) of BLRGs span similar range of values of type 1 radio-quiet AGNs. However, when the mass outflow rate of BLRGs and Seyfert 1s is plotted as a function of the radio-loudness, R=Log [νL_ν(5GHz)/L_(2-10keV)], the mass outflow rate seems to increase with radio power.
description: Accepted for publication in MNRAS. 11 pages, 8 figures, 6 tables
Comments on "First Results of the Phase II SIMPLE Dark Matter Search"
Creators: name: Dahl, C. E.
name: Hall, J.
name: Lippincott, W. H.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The SIMPLE Collaboration has reported results from their superheated C2ClF5 droplet detectors, including a description of acoustic discrimination between αdecays and nuclear recoils. Our concern is that the events in the neutron calibration data and the events identified as neutrons in the physics data are not drawn from the same parent distribution. This fact calls into question the identification of the background events as neutrons, the use of the calibration data to define the acceptance of WIMP-induced nuclear recoils, and the observation of discrimination against α's.
description: 1 page, 1 figure, accepted version
Correlates of rank in female groups of Bighorn Sheep, Ovis canadensis
Creators: name: Sherwood, Melissa Dawn
Publisher: name: Graduate Studies
Year: 2012
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: Dominance

description: In many animal groups it is common to find a social structure. This social structure can come in the form of a dominance hierarchy in which high ranking individuals possess control over resources. Common correlates of dominance are body mass, age, and weapon or ornament size. Bighorn sheep (Ovis candensis) have been shown to establish linear dominance hierarchies in their sexually segregated groups. The type of hierarchy, correlates of dominance, and advantages and disadvantages of dominance for female groups were explored. Data analysed did not support the idea that ewes establish linear dominance hierarchies but did support that rank is correlated with age, and mass but not horn length. High ranked individuals had the advantage of leadership but the disadvantage of peripheral positions. No fitness consequences were associated with rank.
Cosmological inflation
Creators: name: Enqvist, K.
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The very basics of cosmological inflation are discussed. We derive the equations of motion for the inflaton field, introduce the slow-roll parameters, and present the computation of the inflationary perturbations and their connection to the temperature fluctuations of the cosmic microwave background.
description: 9 pages, contribution to the 2010 European School of High-energy Physics; 20 June - 3 July 2010, Raseborg, Finland
A Universal Scaling Law for Jets of Collapsing Bubbles
Creators: name: Obreschkow, Danail
name: Tinguely, Marc
name: Dorsaz, Nicolas
name: Kobel, Philippe
name: de Bosset, Aurele
name: Farhat, Mohamed
Publisher: name: arXiv
Year: 2011
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Cavitation bubbles collapsing and rebounding in a pressure gradient grad(p) form a "micro-jet" enveloped by a "vapor jet". This letter presents unprecedented observations of the vapor jets formed in a uniform gravity-induced grad(p), modulated aboard parabolic flights. The data uncovers that the normalized jet volume is independent of the liquid density and viscosity and proportional to zeta=grad(p)*R0/p, where R0 is the maximal bubble radius and p is the driving pressure. A derivation inspired by "Kelvin-Blake" considerations confirms this law and reveals its negligible dependence of surface tension. We further conjecture that the jet only pierces the bubble boundary if zeta>0.0004.
description: 4 page letter, 4 figures
Insect Abundance In Relation To Capuchin (Cebus capucinus) Foraging: Fallback Foods In A Costa Rican Tropical Dry Forest
Creators: name: Mosdossy, Krisztina
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: Entomology
subject: fallback
subject: capuchin
subject: diet
subject: extractive
subject: foraging
subject: tropical
subject: insect
subject: abundance
subject: seasonality

description: There is a paucity of literature on tropical insect abundance, especially in tropical dry forests, and white-faced capuchin fallback foods have only recently been studied. I predicted that insects overall would be seasonal, but abundant throughout the year and hypothesized that insects are fallback foods in the capuchin diet. I measured insect abundance while simultaneously recording capuchin foraging in a tropical dry forest. I found that overall insect abundance was seasonal, although most Orders and Families that I identified were aseasonal and insects remained abundant throughout the year. Abiotic and biotic factors affected some insect Order and Family abundance patterns. Capuchins consumed insects more frequently during a period of overall food abundance and spent more time foraging extractively on pith and bromeliad leaves, which were consumed more frequently during a period of food scarcity. I conclude that white-faced capuchins likely fall back on pith and bromeliad leaves, not insects.
Integrating Product Functional and Decision-Making Models into a Single Survey to Better Understand Customer Requirements
Creators: name: Jin, Tian
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Engineering--Mechanical
subject: customer functional preference
subject: functional design
subject: product function
subject: Decision Making
subject: data collection
subject: functional modeling

description: In the evaluation of product value, many attributes have been identified as influential factors. Functionality is one factor considered important and of primary concern when designing a new product. However, the determination of good product functional design currently relies mostly on designer opinion based on their experience, and thus there is a subsequent risk of increased new product development investment when designing to meet customer expectations. To better understand customer requirements so that functional design can be integrated into what the customer requires, this thesis proposes a methodology to measure customer functional preferences quantitatively as a determinant of good product functional design. A purchase decision-making model based survey method is developed for collecting data about customer functional preferences. The correlation between customer functional preferences and product functional design elements are defined by the reconciliation of the purchase decision-making model and the product functional model. This methodology ultimately supports the use of statistical analysis methods such as the structured equation modeling method to quantify the correlations so that an optimal understanding of product functional design requirements can be acquired by correlative mapping from customer functional preferences. In addition, the utility of the survey method is addressed by its implementation in a smartphone application as the interface for data collection.
title: Evaluation of mechanical properties and hydrophobicity of room‐temperature, moisture‐curable polysilazane coatings
Creators: name: Zhan, Ying
name: Grottenmüller, Ralf
name: Li, Wei
name: Javaid, Farhan
name: Riedel, Ralf
Publisher: name: Wiley
Year: 2023

description: Polysilazane coatings have a broad need in real‐life applications, which require low processing or working temperature. In this work, five commercially available polysilazanes have been spin‐coated on polycarbonate substrates and cured in ambient environment and temperature to obtain transparent, crack‐free, and dense films. The degree of crosslinking is found to have a significant impact on the hardness and Young's modulus of the polysilazane films but has a minor influence on the film thickness and hydrophobicity. Among all five polysilazane coatings, the inorganic perhydropolysilazane‐based coating exhibits the largest hardness (2.05 ± 0.01 GPa) and Young's modulus (10.76 ± 0.03 GPa) after 7 days of curing, while the polyorganosilazane‐derived films exhibit higher hydrophobicity. The molecular structure of polysilazanes plays a key role in mechanical properties and hydrophobicity of the associated films, as well as the adhesion of coatings to substrates, providing an intuitive and reliable way for selecting a suitable polysilazane coating material for a specific application.
Characteristics of Donor-Specific anti-HLA Antibodies (DSA) Impacting different Renal Allograft Outcomes
Creators: name: Ghandorah, Salim
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Immunology
subject: FOS: Clinical medicine
subject: Kidney Transplantation
subject: antibody
subject: rejection

description: AMR is the major complication of renal transplantation that significantly affects the allograft survival. Complement fixation of Donor specific anti-HLA antibodies is the hallmark of AMR. Different methods have been developed to detect harmful DSAs. However, not all DSAs have the same detrimental effect, as different antibody characteristics (timing, specificity, strength, and complement-fixing ability) might trigger distinct immune responses. Here, we assessed DSA characteristics in renal transplant patients. Thirty-nine patients with de novo DSA were analyzed for the DSA MFI values, C1q positivity and IgG subclasses. IgG1 was the predominant IgG subclass (49.4%), followed by IgG3 (24.7%), IgG2 (16%), and IgG4 (9.9%). Among DSA characteristics, DSA MFI and IgG1 subclass were strongly correlated with C1q positivity (p= 0.01 and p= 0.009, respectively). Further studies are needed to investigate the clinical relevance of high MFI DSA and IgG1 subclass in improving the utility of the C1q assay in predicting graft outcomes.
de Sitter invariance of the dS graviton vacuum
Creators: name: Higuchi, Atsushi
name: Marolf, Donald
name: Morrison, Ian A.
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: The two-point function of linearized gravitons on de Sitter space is infrared divergent in the standard transverse traceless synchronous gauge defined by $k=0$ cosmological coordinates (also called conformal or Poincare coordinates). We show that this divergence can be removed by adding a linearized diffeomorphism to each mode function; i.e., by an explicit change of gauge. It follows that the graviton vacuum state is well-defined and de Sitter invariant in agreement with various earlier arguments.
description: 14 pages, 1 figure
Social Securitization Theory
Creators: name: Côté, Adam
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Political Science--International Law and Relations
subject: securitization
subject: audience
subject: security theory
subject: intersubjectivity
subject: inductive analysis

description: This dissertation constructs a theory of securitization, termed Social Securitization Theory (SST), grounded in the social and communicative interactions between central security policymakers and the external audiences responsible for authorizing and legitimizing security policy and action. Through an examination of 32 empirical studies of securitization, this project uses inductive analysis to develop three primary components of SST, which places the audience in a much more central role, outlines a detailed social securitization process, and develops the audience across three analytical dimensions. Within the current literature, the "securitization" of an issue – the construction of an issue as an existential threat requiring the use of policies which go beyond standard political practice – entails the use of communicative tools by securitizing actors (central policymakers) with the goal of presenting an issue towards an external audience as a security threat justifying an extreme response. Once this presentation, called the "securitizing move", is made, the audience is usually seen as having two options: accept the presentation, thus applying the "security threat" label to the issue and legitimizing the extreme response, or reject it. The presence of the audience makes securitization unique within the literature, as it presents security as an intersubjective construction, as opposed to objective reality or subjective thought. By virtue of its role, the audience is a vital element of the securitization process and an essential aspect of the creation of shared security meanings and the selection of security policies. However, the theoretical understanding of the securitization audience is limited. SST offers a reformulation of the relationship between the securitizing actor and audience by placing their interaction as the centerpiece of securitization analysis, combined with a theory of the audience which shifts the role of the audience from passive to active and from a reflexive participant to an engaged contributor to security threat construction and policy selection. This not only bolsters the intersubjective disposition of securitization theory to reflect what is seen in the empirical literature, but also has the potential to greatly enhance our ability to explain the construction of security identities and shared meanings that inform security and foreign policy.
Change leadership when implementing innovative learning environments
Creators: name: Osborne, Mark
Publisher: name: figshare
Year: 2020
Subjects: subject: Education
subject: 130304 Educational Administration, Management and Leadership
subject: FOS: Educational sciences

description: The educational architecture that has been built in New Zealand since 2011 has predominately been in the style of innovative learning environments (ILEs). While ILEs potentially offer teachers access to a wider range of teaching and learning approaches and more collaboration opportunities than traditional classrooms they also often require significant shifts in teacher practice to be successful. Leadership is often seen as an important factor in the successful implementation of such environments but there is very little research into the specific change leadership practices principals can employ to successfully transition their schools to ILEs. As part of the Australian Research Council-funded Innovative Learning Environments and Teacher Change project (ILETC) an analytic autoethnographic study was undertaken to identify the change leadership practices that are most likely to lead to a successful ILE implementation. A literature review was undertaken, the key findings from which were used to develop a conceptual framework. This framework was then used in a series of interactive interviews with New Zealand primary school principals to compare their personal experience (and those of the researcher) with change leadership principles in research literature. This joint sense-making was complemented by a range of other data sources including field notes, workshop artefacts, workshop transcripts, memories and recollections. Two ‘key informants’ (recognised experts in the field) were also used throughout the research process to support sense-making. The findings outline two sets of change leadership principles; a set that are important to uphold throughout the entire change process (persistent principles); and a set that are important (respectively) in the preparing, implementing and sustaining phases of a change (phase-dependent principles). These principles, when intelligently and sensitively applied by school leaders throughout the innovative learning environment implementation, will increase the likelihood a transition to ILEs will be successful, ultimately leading to improved learning and well-being outcomes for teachers and students.
BMO spaces associated with semigroups of operators
Creators: name: Junge, Marius
name: Mei, Tao
Publisher: name: arXiv
Year: 2011
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Functional Analysis (math.FA)
subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: 46L51 (42B25 46L10 47D06)

description: We study BMO spaces associated with semigroup of operators and apply the results to boundedness of Fourier multipliers. We prove a universal interpolation theorem for BMO spaces and prove the boundedness of a class of Fourier multipliers on noncommutative Lp spaces for all 1 < p < \infty, with optimal constants in p.
description: Math Ann
Investigation of Single Phase NanoCellulose Transport Through Porous Media
Creators: name: Dziuba, Carter
Publisher: name: Graduate Studies
Year: 2017
Subjects: subject: Engineering--Chemical
subject: Materials Science
subject: Engineering--Petroleum
subject: Nanocellulose
subject: Enhanced Oil Recovery
subject: Nanotechnology
subject: FOS: Nanotechnology
subject: Petroleum
subject: Porous Media
subject: Materials Engineering
subject: FOS: Materials engineering

description: The application of nanotechnology to the petroleum industry has seen many recent advancements. Nanocellulose is an emerging nanoparticle at the forefront of research. Before nanocellulose can be injected into petroleum reservoirs, further understanding is needed as to the retention mechanisms that occur during nanocellulose transport through porous media. A series of unconsolidated sandpack floods were preformed with nanocellulose and the resulting retention and permeability reduction were measured. The experimental variables include nanocellulose type, sand grain size, flowrate, and salinity. It was found that all types of nanocellulose tested showed significantly different transport properties. Retention and permeability reduction increased as grain size decreased or flowrate decreased. As a general trend, the larger the size of aggregates in bulk solution, the greater the retention and permeability reduction. Salinity was found to be the primary parameter affecting transport. Increased salinity caused additional aggregation which resulted in increased straining and filter cake formation.
Explicit Integration of Extremely-Stiff Reaction Networks: Partial Equilibrium Methods
Creators: name: Guidry, M. W.
name: Billings, J. J.
name: Hix, W. R.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: In two preceding papers we have shown that, when reaction networks are well-removed from equilibrium, explicit asymptotic and quasi-steady-state approximations can give algebraically-stabilized integration schemes that rival standard implicit methods in accuracy and speed for extremely stiff systems. However, we also showed that these explicit methods remain accurate but are no longer competitive in speed as the network approaches equilibrium. In this paper we analyze this failure and show that it is associated with the presence of fast equilibration timescales that neither asymptotic nor quasi-steady-state approximations are able to remove efficiently from the numerical integration. Based on this understanding, we develop a partial equilibrium method to deal effectively with the approach to equilibrium and show that explicit asymptotic methods, combined with the new partial equilibrium methods, give an integration scheme that plausibly can deal with the stiffest networks, even in the approach to equilibrium, with accuracy and speed competitive with that of implicit methods. Thus we demonstrate that such explicit methods may offer alternatives to implicit integration of even extremely stiff systems, and that these methods may permit integration of much larger networks than have been possible before in a number of fields.
description: Updated references
Analysis of process mechanisms promoting cooperation in transboundary waters
Creators: name: Hearns, Glen Spencer
Publisher: name: University of British Columbia
Year: 2010

description: International water basins are experiencing increasingly rapid changes. Climate change, increased pressure from population growth and development, and shifting societal values are converging making water availability increasingly precarious in many areas. Where management structures do exist, change is often exceeding their capacities to address issues escalating the potential for conflict. Particularly urgent therefore, is the development of effective and adaptive governance regimes in the majority of the 263 international basins where management is inadequate. Effective and adaptive regimes require high levels of cooperation and interdependence. This thesis focuses on actions or process mechanisms available to states to enhance cooperation and regime effectiveness. Through case study analysis, five mechanisms are identified to be important factors in the formation of international transboundary water regimes. They are; (i) balancing and creating incentives, (ii) information exchange, (iii) cooperating in a stepwise process, (iv) neutral party involvement, and (v) adequate stakeholder engagement. An analytical framework is developed, based on case survey methodology, to assess the impact of the process mechanisms on existing regimes. Practitioners and academics applied the framework to the Columbia, Mekong, Danube, Mahakali Rivers and the West Bank Aquifers through a series of interviews. The framework proved versatile in describing all scenarios, showed consistency in responses from practitioners and was sufficiently comprehensive to reflect important singularities of basins. Analysis indicated that high levels of balancing and creating incentives, information exchange, and neutral party involvement were required for regime effectiveness in all situations. All process mechanisms appeared to be needed when development goals of the parties differed, or when initial relations between the parties were poor. Stepwise cooperation and stakeholder engagement were not seen to be requisites for developing cooperative regimes when relationships between basin states were good and they shared common development goals. The framework is able to combine quantitative analysis in parallel to quantitative analysis in a manner that until now has not been achieved in the study of transboundary waters. Major elements of the framework are already being applied in a three-year program to analyse marine, groundwater and river systems, and develop training tools to enhance regime effectiveness.
Strong scale dependent bispectrum in the Starobinsky model of inflation
Creators: name: Arroja, Frederico
name: Sasaki, Misao
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We compute analytically the dominant contribution to the tree-level bispectrum in the Starobinsky model of inflation. In this model, the potential is vacuum energy dominated but contains a subdominant linear term which changes the slope abruptly at a point. We show that on large scales compared with the transition scale $k_0$ and in the equilateral limit the analogue of the non-linearity parameter scales as $(k/k_0)^2$, that is its amplitude decays for larger and larger scales until it becomes subdominant with respect to the usual slow-roll suppressed corrections. On small scales we show that the non-linearity parameter oscillates with angular frequency given by $3/k_0$ and its amplitude grows linearly towards smaller scales and can be large depending on the model parameters. We also compare our results with previous results in the literature.
description: 14 pages, 3 figures
A Geographical Exploration of Inflammatory Bowel Disease
Creators: name: Underwood, Fox
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Geography
subject: Geography
subject: Inflammatory Bowel Disease
subject: Alberta

description: A chronic disease that afflicts 200 000 Canadians of all ages, inflammatory bowel disease has no known cure or aetiology. Using socioeconomic Census variables, population-level models of inflammatory bowel diseases – Crohn's disease and ulcerative colitis – were made for two large cities in Alberta as well as for the entire province. For modelling, a rule was made to link the imperfectly overlapping dissemination areas (a census unit in which patient data were provided in) and municipal boundaries that were used in provincial-wide analysis. The models assessed statistical relationships between inflammatory bowel disease and socioeconomic population-level characteristics. Factors found to be positively correlated with inflammatory bowel disease were the presence of older buildings (1970 and older), low socioeconomic status in the form of less than high school education and proportion of one parent families, and certain occupational work- forces: waste management, accommodation and tourism, and construction work-forces. Conversely, negatively correlated factors consisted of the presence of newer buildings (1990 and newer), apartment buildings, and the proportion of people working in the mining and oil industry. These findings indicate the need to consider the potential links between inflammatory bowel disease and three factors: occupational exposures, socioeconomic status, and environmental exposures in different building types and age of buildings.
Macrobrachium acanthurus Wiegmann 1836
Creators: name: Almeida, Alexandre Oliveira De
name: Guerrazzi, Maria Cec Lia
name: Coelho, Petr Ȏ Nio Alves
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Decapoda
Palaemonidae
Macrobrachium
Macrobrachium acanthurus

description: Macrobrachium acanthurus (Wiegmann, 1836)
Material examined (N=3). 1f, 25/III/2005, St. 0 8 (MZUESC #653).
Distribution. From North Carolina to Texas, Mexico, Cuba, Haiti, Dominican Republic, Puerto Rico, Nicaragua, Panama, Colombia, Venezuela, Surinam, and Brazil (from Pará to Rio Grande do Sul) (Melo 2003).
Ecological notes. Freshwater species. In turbid, generally slow waters, with abundant marginal vegetation, and muddy substratum. Sometimes found in brackish waters (Melo 2003).
Previous records in Bahia. von Ihering (1897) (as Palaemon acanthurus), Sawaya (1946), Holthuis (1952), Almeida et al. (2006).
description: Published as part of Almeida, Alexandre Oliveira De, Guerrazzi, Maria Cec Lia & Coelho, Petr Ȏ Nio Alves, 2007, Stomatopod and decapod crustaceans from Camamu Bay, state of Bahia, Brazil, pp. 1-45 in Zootaxa 1553 on page 10, DOI: 10.5281/zenodo.178168
Characterization of Bacterial Ferrous Iron Transport: the Feo System
Creators: name: Lau, Cheryl Kar Yee
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Biology--Molecular
subject: Biochemistry
subject: Feo
subject: Iron
subject: transport

description: The Feo system is the main ferrous iron uptake pathway for the majority of prokaryotic organisms. The feo operon consists of two proteins, ferrous iron transport proteins A (FeoA) and B (FeoB). Many studies in relation to the system’s role in bacterial virulence and the crystal structures of the N-terminal domain of FeoB (NFeoB) have been reported, however, none have explored the solution characteristics associated with FeoA and FeoB. This dissertation presents the solution structure of Escherichia coli FeoA along with the backbone amide dynamics of this protein. Further, NMR dynamic studies of E. coli NFeoB, along with interaction studies between FeoA and NFeoB are presented. Lastly, a detailed bioinformatics analysis of this system is presented to bring together our findings and new hypotheses are suggested. Our studies provide insight to the function of FeoA from a structural perspective and its potential role in interacting with FeoB, a co-regulated gene. The solution structure of FeoA shows a resemblance to eukaryotic SH3 protein-protein interaction domains. The addition of an α-helix in FeoA for one of the conserved interaction loops in eukaryotic SH3-domains results in a greater resemblance towards SH3-like domains present in prokaryotic metalloregulators, that are involved in transcriptional regulation. Backbone dynamics on the fast NMR timescale of FeoA indicate a rigid monomeric structure. The backbone dynamics of the apo and guanine nucleotide forms of NFeoB on the fast NMR timescale suggest communication between the N-terminal cytoplasmic domains of FeoB and the transmembrane domain of FeoB. Backbone dynamics on the slow NMR timescale indicate that global conformational changes associated with guanine-nucleotide binding may be important for the association of NFeoB with the transmembrane domain. Interaction studies between FeoA and NFeoB indicate a transient interaction under the conditions tested. Furthermore, 31P NMR studies with FeoA and NFeoB suggests that FeoA does not act as an activator of the G-domain of FeoB as previously suggested. Bioinformatics analyses of the Feo system provide different perspectives towards the roles of FeoA and FeoB; along with the unique conservation of certain domains in FeoB that are important to its function.
Urban Policy Trends: What do Calgarians think of their Local, Provincial, and National Economies?
Creators: name: Lucas, Jack
name: Tombe, Trevor
Publisher: name: The School of Public Policy Publications
Year: 2019

description: To answer this question, The School of Public Policy partnered with the Canadian Municipal Election Study (CMES) to ask Calgarians a series of questions about the economy. The survey was carried out by Forum Research between November 14 and December 13, 2018, and included 748 individuals who completed both the 2017 CMES survey and the 2018 Calgary Year in Review Survey. Each of the two surveys included an identical set of questions about the economy, providing a valuable look at how opinions about the local economy have changed in Calgary over time.
description: The School of Public Policy Publications, Vol 12 (2019)
Constructing and Tabulating Dihedral Function Fields
Creators: name: Weir, Colin
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Mathematics
subject: FOS: Mathematics
subject: number theory
subject: function fields
subject: Galois theory
subject: tabulation
subject: dihedral
subject: Kummer theory
subject: Class field theory

description: We present and implement algorithms for constructing and tabulating odd prime degree l dihedral extensions of a rational function field k_0(x), where k_0 is a perfect field with characteristic not dividing 2l. We begin with a class field theoretic construction algorithm when k0 is a finite field. We also describe modifications to this algorithm to improve the run time of its implementation. Subsequently, we introduce a Kummer theoretic algorithm for constructing dihedral function fields with prescribed ramification and fixed quadratic resolvent field, when k0 is a perfect field and not necessarily finite. We give a detailed description of this Kummer theoretic approach when k0, or a quadratic extension thereof, contains the l-th roots of unity. Avoiding the case when k0 is infinite and the quadratic resolvent field is a constant field extension of k0(x), we show that our Kummer theoretic algorithm constructs all degree l dihedral extensions of k0(x) with prescribed ramification. This algorithm is based on the proof of our main theorem, which gives an exact count of such fields. When k0 is a finite field, we implement and experimentally compare the run times of the class field theoretic and Kummer theoretic construction algorithms. We find that the Kummer theoretic approach performs better in all cases, and hence we use it later in our tabulation method. Lastly, utilizing the automorphism group of Fq(x), we present a tabulation algorithm to construct all degree l dihedral extensions of Fq(x) up to a given discriminant bound, and we present tabulation data. This data is then compared to known asymptotic predictions, and we find that these estimates over-count the number of such fields. We also give a formula for the number of degree l dihedral extensions of Fq(x) when q is plus or minus 1 mod 2l, with discriminant divisors of minimum possible degree.