cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Autonomous Locomotion Mode Transition of Ground Hybrid Robots
Creators: name: Wang, Jie
Publisher: name: Graduate Studies
Year: 2017
Subjects: subject: Robotics
subject: Ground Hybrid Robots
subject: Locomotion Mode Transition
subject: Energy Criterion
subject: Step Negotiation

description: Multi-modal locomotion (e.g. terrestrial, aerial, and aquatic) is gaining increasing interest in robotics research as it improves the robots’ environmental adaptability, locomotion versatility, and operational flexibility. Within the terrestrial multiple locomotion robots, the main advantage of hybrid robots stems from their multiple (two or more) locomotion modes, among which robots can select from depending on the encountering terrain conditions. The majority of the ground hybrid robots proposed in the past two decades are wheel/track-legged systems due to their excellence in both locomotive efficiency and rough terrain negotiation abilities. However, there are many challenges in improving the autonomy of the locomotion mode transition between their multiple locomotion modes. The main goal of this research is to develop a method to enable an autonomous locomotion mode transition for ground hybrid robots. To achieve this goal, simplified dynamic modeling methods for the rolling and walking locomotion modes of wheel/track-legged hybrid robots are developed, a novel energy based criterion is proposed to evaluate the locomotion performance of the rolling and walking locomotion mode, a new rule to determine the threshold values of the locomotion transition criterion is derived, and two walking gaits to negotiate steps with different heights for quadruped wheel/track-legged hybrid robots are proposed. The autonomous locomotion mode transition method is proposed. It’s first proposed based on the energy performance knowledge of the simplified rolling and walking locomotion evaluations of ground hybrid robots. Then, the method is refined by the work on the Cricket robot. Simulated case study results are presented to illustrate that the autonomous locomotion mode transition method is able to switch between the Cricket’s rolling and walking locomotion modes when negotiating step style obstacles. Even though the proposed method is improved by the work on the Cricket robot, the method is generally applicable to a wide range of wheel/track-legged hybrid robots.
Attribute Selection and Bridge Performance Prediction Using Soft Computing Methods
Creators: name: Tagh Bostani, Maryam
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Engineering--Civil
subject: Bridge Management
subject: Generalized Estimating Equation
subject: Local Linear Model Tree
subject: Adaptive Neuro Fuzzy Inference System
subject: Support Vector Machine
subject: Genetic Algorithm
subject: Sufficiency Rating

description: Bridge Management System (BMS) is a systematic decision-making process that uses engineering and economic principles to help transportation agencies manage the enormous number of bridges within a network. It seeks to deliver safe and sustainable bridges and minimize the Maintenance, Repair, and Rehabilitation (MR&R) costs during the life cycle of bridges. The Bridge Management framework starts with inspection and definition of the condition of bridges. Then, the future condition of bridges is predicted and the proper repair actions for a multi-year period are determined. Accurate prediction of the condition of bridges is vital in the effectiveness of BMS. Available bridge performance prediction methods have certain limitations in predicting the condition of bridges. This study addresses these limitations and introduces innovative, precise, and robust bridge performance prediction models. The attributes that are statistically significant to be predictors for bridge performance prediction are selected from the available database. Bridge inspection data are gathered repeatedly during time and hence are correlated. Generalized Estimating Equation (GEE) that is capable of handling the correlation within data is used to test the significance of each attribute. Backward Stepwise Elimination (BSE) and Genetic Algorithm (GA) are two procedures used to select the significant attributes according to GEE results. The selected attributes are then used to predict the condition of bridges using advanced Soft Computing methods. These biologically inspired methods mimic human-like intelligence to model the unknown target function by learning from available data. Local Linear Model Tree (LOLIMOT), Adaptive Neuro-Fuzzy Inference System (ANFIS), and Support Vector Machines (SVM) are used for bridge performance prediction in two distinguished ways. In the first application, the condition of a specific bridge is predicted from available data on the other bridges in the network. In the second application, time series forecasting is used to predict the future condition of bridges from available data on their previous conditions. The models are verified using data from Alberta Transportation by predicting the condition of bridges in terms of Sufficiency Rating (SR). SR is an index that delivers a rational basis for priority planning of maintenance activities of bridges and allocating funds to the maintenance projects.
Massively Increasing TIMEX3 Resources: A Transduction Approach
Creators: name: Derczynski, Leon
name: Llorens, Héctor
name: Saquete, Estela
Publisher: name: arXiv
Year: 2012
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Automatic annotation of temporal expressions is a research challenge of great interest in the field of information extraction. Gold standard temporally-annotated resources are limited in size, which makes research using them difficult. Standards have also evolved over the past decade, so not all temporally annotated data is in the same format. We vastly increase available human-annotated temporal expression resources by converting older format resources to TimeML/TIMEX3. This task is difficult due to differing annotation methods. We present a robust conversion tool and a new, large temporal expression resource. Using this, we evaluate our conversion process by using it as training data for an existing TimeML annotation tool, achieving a 0.87 F1 measure -- better than any system in the TempEval-2 timex recognition exercise.
description: Proc. LREC (2012)
Arma nefasque cano : a commentary on Lucan's Bellum Civile 8.560-711
Creators: name: Glukhovskyy, Anton
Publisher: name: University of British Columbia
Year: 2010

description: The purpose of this study is to investigate and observe the complexity of Lucan’s Bellum Civile 8.560-711, the scene of Pompey’s death, which is treated as a centerpiece of the epic. The author includes the Latin text with detailed notes and appendices that encompass literary and linguistic material, situate the passage in the epic as a whole and show its importance in our understanding of texture and rhythm of the Bellum Civile. Lucan gives Pompey’s death a dimension of a ‘true Pharsalus’ as he zooms in on the individual, most important death of the war. It marks the highest point in the changing rhythm of the epic and serves as its climax following the anticlimactic battle of Pharsalus. As Lucan winds up the narrative toward the end of Book 6, the battle of Pharsalus compromises the expectations and dramatic charge until it renews again in Book 8 to culminate in Pompey’s death. The commentary closely examines linguistic issues such as Lucan’s style and expression as well as literary parallels that concentrate on the passage’s rich texture and its place in the Roman epic. Close attention is also given to examination of thematic trends in the passage and their relation to the rest of the epic. A set of appendices at the end comprises a series of essays that deal with larger issues that transcend the commentary format and provide a holistic treatment of topics such as placement of the passage in Book 8 and the entire epic, Pompey’s character and structure of the passage. The present study engages with the most recent commentary on Book 8 in English by R. Mayer and brings still more recent scholarship to illustrate the richness and complexity of Lucan’s thematic design and language all of which lead to a clearer understanding of the Bellum Civile.
Tradeoff Analysis of Delay-Power-CSIT Quality of Dynamic BackPressure Algorithm for Energy Efficient OFDM Systems
Creators: name: Lau, Vincent K. N.
name: Koh, Chung Ha
Publisher: name: arXiv
Year: 2012
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this paper, we analyze the fundamental power-delay tradeoff in point-to-point OFDM systems under imperfect channel state information quality and non-ideal circuit power. We consider the dynamic back- pressure (DBP) algorithm, where the transmitter determines the rate and power control actions based on the instantaneous channel state information (CSIT) and the queue state information (QSI). We exploit a general fluid queue dynamics using a continuous time dynamic equation. Using the sample-path approach and renewal theory, we decompose the average delay in terms of multiple unfinished works along a sample path, and derive an upper bound on the average delay under the DBP power control, which is asymptotically accurate at small delay regime. We show that despite imperfect CSIT quality and non-ideal circuit power, the average power (P) of the DBP policy scales with delay (D) as P = O(Dexp(1/D)) at small delay regime. While the impacts of CSIT quality and circuit power appears as the coefficients of the scaling law, they may be significant in some operating regimes.
description: 30 pages
DGPS and UWB Aided Vector-Based GNSS Receiver for Weak Signal Environments
Creators: name: Chan, Billy
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Engineering
subject: Engineering--Aerospace
subject: Engineering--Electronics and Electrical
subject: Geomatics
subject: GPS
subject: GNSS
subject: Signal
subject: Tracking
subject: UWB
subject: Ultra
subject: Wideband
subject: Vector-Based
subject: A-GPS
subject: AGNSS
subject: GLONASS
subject: Engineering

description: Vector-based GNSS (VBGNSS) receivers attempt to bridge the gap between Assisted GNSS (AGNSS) and High Sensitivity GNSS (HSGNSS); AGNSS use satellite orbit and network time information to predict the incoming satellite frequency during signal acquisition while HSGNSS enables the tracking of GNSS signals with strong attenuation. Similar to AGNSS, VBGNSS receivers make use of both satellite and receiver navigation information (position, velocity, and clock) to better estimate the incoming signal frequency and code-phase to improve the tracking sensitivity of weak GNSS signals. The performance of VBGNSS receivers is proportional to the navigation solution accuracy; this research focuses on improving the performance of VBGNSS receivers using Ultra-Wideband (UWB) ranging and Differential GPS (DGPS) corrections. From the results presented herein, it was found that UWB ranging can improve the tracking sensitivity, position availability, and accuracy of a VBGNSS receiver; likewise DGPS can improve VBGNSS receiver performance in certain operating environments.
Education Thoughts and Acts: Decisions School Leaders Feel They Need to Make
Creators: name: Baron, Violet
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Education
subject: Education--Administration
subject: Educational leadership
subject: Dual Process Theory
subject: Too Much Stuff
subject: consciousness of the school collective
subject: Provincial School Acts
subject: Provincial Education Acts

description: Abstract This study examines how school leaders choose to focus time and attention on implementing substantive change amid the aims of overarching and often conflicting purposes without creating an environment of “too much stuff.” Using a dual process theory analogy, findings suggest that school leaders, as the consciousness of the school collective may interpret legislative direction and set a vision that aligns with their understanding and enacted practice of the purposes of schooling. Findings also suggest that school leaders choose to focus resources on initiatives that promote the vision and values of the school—and correspondingly, choose not to focus resources on initiatives that the school leader does not see as in alignment with the visions or values of the school.
MPS degeneration formula for quiver moduli and refined GW/Kronecker correspondence
Creators: name: Reineke, Markus
name: Stoppa, Jacopo
name: Weist, Thorsten
Publisher: name: arXiv
Year: 2011
Subjects: subject: Algebraic Geometry (math.AG)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: Motivated by string-theoretic arguments Manschot, Pioline and Sen discovered a new remarkable formula for the Poincare polynomial of a smooth compact moduli space of stable quiver representations which effectively reduces to the abelian case (i.e. thin dimension vectors). We first prove a motivic generalization of this formula, valid for arbitrary quivers, dimension vectors and stabilities. In the case of complete bipartite quivers we use the refined GW/Kronecker correspondence between Euler characteristics of quiver moduli and Gromov-Witten invariants to identify the MPS formula for Euler characteristics with a standard degeneration formula in Gromov-Witten theory. Finally we combine the MPS formula with localization techniques, obtaining a new formula for quiver Euler characteristics as a sum over trees, and constructing many examples of explicit correspondences between quiver representations and tropical curves.
description: 31 pages
title: Automatic Segmentation of Human Cortical Layer-Complexes and Architectural Areas Using Ex vivo Diffusion MRI and Its Validation
Creators: name: Bastiani, Matteo
name: Oros-Peusquens, Ana-Maria
name: Seehaus, Arne
name: Brenner, Daniel
name: Möllenhoff, Klaus
name: Celik, Avdo
name: Felder, Jörg
name: Bratzke, Hansjürgen
name: Shah, Nadim J.
name: Galuske, Ralf
name: Goebel, Rainer
name: Roebroeck, Alard
Publisher: name: Frontiers Media S.A.
Year: 2023

description: Recently, several magnetic resonance imaging contrast mechanisms have been shown to distinguish cortical substructure corresponding to selected cortical layers. Here, we investigate cortical layer and area differentiation by automatized unsupervised clustering of high-resolution diffusion MRI data. Several groups of adjacent layers could be distinguished in human primary motor and premotor cortex. We then used the signature of diffusion MRI signals along cortical depth as a criterion to detect area boundaries and find borders at which the signature changes abruptly. We validate our clustering results by histological analysis of the same tissue. These results confirm earlier studies which show that diffusion MRI can probe layer-specific intracortical fiber organization and, moreover, suggests that it contains enough information to automatically classify architecturally distinct cortical areas. We discuss the strengths and weaknesses of the automatic clustering approach and its appeal for MR-based cortical histology.
Non-alignment comparison of human and high primate genomes
Creators: name: Kirzhner, V. M.
name: Frenkel, S.
name: Korol, A. B.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Genomics (q-bio.GN)
subject: FOS: Biological sciences

description: Compositional spectra (CS) analysis based on k-mer scoring of DNA sequences was employed in this study for dot-plot comparison of human and primate genomes. The detection of extended conserved synteny regions was based on continuous fuzzy similarity rather than on chains of discrete anchors (genes or highly conserved noncoding elements). In addition to the high correspondence found in the comparisons of whole-genome sequences, a good similarity was also found after masking gene sequences, indicating that CS analysis manages to reveal phylogenetic signal in the organization of noncoding part of the genome sequences, including repetitive DNA and the genome "dark matter". Obviously, the possibility to reveal parallel ordering depends on the signal of common ancestor sequence organization varying locally along the corresponding segments of the compared genomes. We explored two sources contributing to this signal: sequence composition (GC content) and sequence organization (abundances of k-mers in the usual A,T,G,C or purine-pyrimidine alphabets). Whole-genome comparisons based on GC distribution along the analyzed sequences indeed gives reasonable results, but combining it with k-mer abundances dramatically improves the ordering quality, indicating that compositional and organizational heterogeneity comprise complementary sources of information on evolutionary conserved similarity of genome sequences.
Development of a Method to Measure Clinical Reasoning in Pediatric Residents: The Pediatric Script Concordance Test
Creators: name: Cooke, Suzette
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Medicine and Surgery
subject: Clinical Reasoning
subject: Assessment
subject: Script Concordance Testing
subject: Medical Education

description: Context: National medical examinations boards have requested that methods be developed to assess the clinical reasoning competency of medical trainees. The Script Concordance Test (SCT) is an emerging method of assessment that holds promise for the evaluation of clinical reasoning skills. Objectives: This study had 3 objectives: 1) to examine the validity of SCT scores in accurately discriminating clinical reasoning ability between junior (JR) and senior (SR) pediatric residents and experienced pediatricians serving on the panel of experts (POE), 2) to determine if higher reliability of the SCT method could be achieved by applying specific strategies to the design and construction, and 3) to explore participants’ acceptability of the SCT method. Methods: A 90-minute SCT containing 24 cases and 137 questions was administered to 91 residents from four pediatric residency training centers. Twenty-one pediatricians served on the POE. All participants completed a post-test survey designed to explore their impressions and attitudes regarding the SCT assessment method. Results: Overall, there was a difference in performance across the three levels of experience, F = 22.84 (df = 2); p < 0.001. The POE scored higher than both the SR (mean difference 9.15; p < 0.001) and the JR (mean difference = 14.90; p < 0.001) and the SR scored higher than the JR (mean difference = 5.76; p < 0.002). The reliability of the SCT scores (Cronbach’s α) was 0.85. Sub-test data, based exclusively on the new evolving type cases demonstrated similar results. Participants expressed keen interest and engagement in the SCT format of assessment. Conclusions: The findings of this study contribute to a growing body of literature suggesting that SCT holds promise as a valid, reliable and acceptable method to assess the core competency of clinical reasoning in medicine. The SCT method is based on two core principles we believe are central to the assessment of clinical reasoning: acknowledging uncertainty and the possibility of more than one “right answer.” We propose the SCT may be effectively integrated into formative residency assessment and with increasing exposure, experience and refinement may soon be ready to pilot within summative assessments in pediatric medical education.
Condensate fraction in liquid 4He at zero temperature
Creators: name: Rota, Riccardo
name: Boronat, Jordi
Publisher: name: arXiv
Year: 2011
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We present results of the one-body density matrix (OBDM) and the condensate fraction n_0 of liquid 4He calculated at zero temperature by means of the Path Integral Ground State Monte Carlo method. This technique allows to generate a highly accurate approximation for the ground state wave function Psi_0 in a totally model-independent way, that depends only on the Hamiltonian of the system and on the symmetry properties of Psi_0. With this unbiased estimation of the OBDM, we obtain precise results for the condensate fraction n_0 and the kinetic energy K of the system. The dependence of n_0 with the pressure shows an excellent agreement of our results with recent experimental measurements. Above the melting pressure, overpressurized liquid 4He shows a small condensate fraction that has dropped to 0.8% at the highest pressure of p = 87 bar.
description: 12 pages. 4 figures. Accepted for publication on "Journal of Low Temperature Physics"
Using single-line instruments as a means of reinforcing concepts of harmony : a discussion of exercises for use in individual and group settings
Creators: name: Fay, Margaret Pickering
Publisher: name: University of British Columbia
Year: 2010

description: The purpose of this thesis is to discuss and present harmony-based exercises that can be performed on single-line instruments. My premise is that, while keyboard harmony exercises are widely available, few equivalent resources exist for performance on single-line instruments. Exercises of increasing complexity are presented over the course of three chapters. Chapter 2, “Fundamental Exercises in Chord Awareness,” presents a wide range of exercises that involve arpeggiating chords in different inversions and positions, using a variety of formats (exercise types), all of which are meant to provide contexts that will sharpen memory for these chords. All exercises in this chapter are designed for solo performance. Chapters 3 and 4 present various means of reproducing harmonic successions on single-line instruments, used singly and in groups of two or more. Chapter 3, “Methods of Playing Simple Harmonic Progressions,” discusses some of the ways in which harmonic progressions can be reproduced without requiring that the instruments involved by able to reliably produce simultaneous tones. Chapter 4, “Melodic/Bass-Line Interaction,” uses schemata described in Robert Gjerdingen’s book Music in the Galant Style, (2007), as a basis for deriving exercises that conceive of harmony as the result of interaction between two melodic lines (soprano and bass). The thesis concludes with a brief discussion of sessions in which many of these exercises were tested on and discussed with university-level music students.
Closed-Loop Reservoir Management for Thermal Recovery Processes
Creators: name: Shaker, Wisam
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Engineering--Petroleum
subject: SAGD
subject: Assisted History Matching
subject: Surveillance Optimization
subject: Closed Loop Reservoir Management

description: The combination of model-based optimization and simulation into a single workflow forms the main components of a powerful tool called Closed-Loop Reservoir Management (CLRM). Real-time reservoir management has been applied mostly for water flood application and there is lack of information on application of CLRM for a thermal recovery process. In this research, a novel methodology has been developed to value surveillance prior to acquisition for a Steam Assisted Gravity Drainage (SAGD) process. The workflow evaluates the values of a rate, pressure and temperature surveillance represented by their measurements in injectors, producers and observation wells in a SAGD project. A 2D SAGD reservoir has been used to test the validity of the developed methodologies. The results rejected the null hypothesis proposed and show that these three types of surveillance are uncorrelated, and in the test have reduced the uncertainty range of the future reservoir outcomes by 84%. The power and utility of the developed approach have been expanded to generate a second workflow. The testing workflow represents a new application of the CLRM on thermal cases to test the type of surveillance, the number and locations of the required observation wells and the period of history matching in a 3D SAGD reservoir with the intent of discarding models that would satisfy history at the production well and would be poor predictors. The workflow tests how would the future reservoir outcomes that are controlled by observation wells capture the growth of a steam chamber during the SAGD process. A third comprehensive workflow has been developed to combine an Ensemble Kalman Filter (EnKF) algorithm and simulation with a thermal option to data assimilates of a 2D SAGD reservoir permeability. It is proposed to use the updated reservoir permeability as an input for the reservoir simulation runs from initial time to eliminate any inconsistency between the updated reservoir permeability and the dynamic reservoir properties. The frequency of the updating has been investigated and the outcomes show that incorporating more production data at the first year of production has reduced the uncertainty range of future cumulative oil production in the range of 50-70%.
Air Shower Simulations with CORSIKA - The first 30 years
Creators: name: Knapp, Johannes
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2018

description: Lecture at ISAPP School 2018 - LHC meets Cosmic Rays (CERN, Geneva, Switzerland), 29 Oct 2018 - 2 Nov 2018
MPEC 2023-M170 : 2023 MA6
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 MA6

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Science, technology and innovation diplomacy: a way forward for Europe
Creators: name: Leijten, Jos
Publisher: name: Zenodo
Year: 2019
Subjects: science diplomacy
innovation diplomacy
EU
Horizon2020
research and innovation
protectionism

description: This policy brief explores how innovation becomes an increasingly important topic in international relations, with a deep impact on collaboration as well as on competition between countries. It analyses how the patterns of techno-economic change lead to changes in the global distribution of innovative activities around the world. It outlines three near future scenarios of the international politics of innovation.The first, called “populism and protectionism” describes an international environment which is becomingdominated by populist and nationalist tendencies. The second outlines the consequences of an approachof “innovation as a global public good”, in which ultimately everybody benefits, and global collaboration is the dominant model. The third scenario is called “bottom-up innovation” and describes what happensto the international dimensions when large international firms and the regions in which they are based become the dominant forces. Together these scenarios describe the range of potential developments over the next 10 years. The final paragraph discusses what Europe can and should do in its external relations to provide adequate answers to the forces outlined in the three scenarios. It results in a vision, which is laid down in four policy directions: a) the European “open” model of research and innovationshould remain the starting point; b) Europe should actively seek to build level playing fields for commercial, technological and innovation powers; c) Europe should identify and foster its technological strengths and the critical technologies that need special attention, both in offensive and defensive ways; and d) Europe must identify and spread the key social values and goals (e.g. in relation to quality of life, quality of labour, culture including privacy, and sustainability) that it wants to pursue in its internal and external innovation policies and collaborations. This vision must guide the development of an international innovation policy and the work of innovation diplomats.
Improvement of Carbon Dioxide EOR in Water-Wet Reservoirs by Using Active Carbonated Water
Creators: name: Shu, Guanli
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Engineering--Petroleum
subject: Carbon dioxide (CO2)
subject: Enhanced oil recovery (EOR)
subject: Carbonated water
subject: Water-wet reservoirs
subject: Mass transfer
subject: Diffusion coefficient

description: CO2 injection for enhanced oil recovery has been widely and successfully used in many oil fields. The drawbacks of conventional CO2 injection are high mobility and gravity segregation, which lead to low sweep efficiency in the reservoir. Particularly in strongly water-wet reservoirs, a significant trapping of oil by water occurs after CO2 flood due to water blocking effect. To overcome the effect of water blocking, carbonated water flood is considered. In this thesis, a new injection strategy is proposed to recover the trapped residual oil in water-wet reservoirs. After waterflood, a slug of carbonated water is pre-flushed before CO2 flood, followed by an extended waterflood. A series of parallel tests are performed to compare the recovery efficiencies of tertiary floods. Additionally, the slug size of carbonated water is investigated and optimized to achieve the maximum economic value. In accordance with experimental results from parallel tests, it is recognized that molecular diffusion plays important role in recovering the trapped oil. In order to study the mass transfer process of dissolved CO2 from carbonated water into oil phases, a theoretical model is developed. The diffusion process is governed by diffusion coefficients of CO2 in water and oil phases. To determine these two diffusivities, an experimental method is proposed. In the experiment, two phases are placed in a closed diffusion cell immersed in a water bath at a constant temperature. To avoid natural convection, the water phase locates at the bottom and oil phase lies at the top. Combined with a developed theoretical model, pressure changes that occur in the cell are recorded and analyzed to investigate the mass transfer process. By means of the theoretical model and experimental method, effects of operational parameters on diffusion coefficients are studied. To explain the reasons for enhanced oil recovery by pre-flushing carbonated water before the CO2 flood, three types of experiments are involved in investigating the mechanisms. The derived theoretical model and experimental method can be applied to study the mass transfer process and to determine diffusion coefficients for any liquid-liquid system.
Explicit Integration of Extremely-Stiff Reaction Networks: Asymptotic Methods
Creators: name: Guidry, M. W.
name: Budiardja, R.
name: Feger, E.
name: Billings, J. J.
name: Hix, W. R.
name: Messer, O. E. B.
name: Roche, K. J.
name: McMahon, E.
name: He, M.
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: We show that, even for extremely stiff systems, explicit integration may compete in both accuracy and speed with implicit methods if algebraic methods are used to stabilize the numerical integration. The required stabilizing algebra depends on whether the system is well-removed from equilibrium or near equilibrium. This paper introduces a quantitative distinction between these two regimes and addresses the former case in depth, presenting explicit asymptotic methods appropriate when the system is extremely stiff but only weakly equilibrated. A second paper examines quasi-steady-state methods as an alternative to asymptotic methods in systems well away from equilibrium and a third paper extends these methods to equilibrium conditions in extremely stiff systems using partial equilibrium methods. All three papers present systematic evidence for timesteps competitive with implicit methods. Because an explicit method can execute a timestep faster than an implicit method, algebraically-stabilized explicit algorithms might permit integration of larger networks than have been feasible before in various disciplines.
description: Updated references
Implications of Comparative Institutional Analysis for Firm-Level Strategic Governance
Creators: name: Kano, Liena
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Business
subject: strategic governance
subject: comparative institutional analysis
subject: transaction cost economics
subject: internalization theory
subject: Entrepreneurship
subject: Sustainability
subject: emerging economy multinationals
subject: regionalization

description: In this thesis I explore implications of comparative institutional analysis (CIA), embodied in internalization and transaction cost economics (TCE) theories, for firm-level strategic governance. I investigate applications of CIA to various governance forms, namely the family firm, the multidivisional corporation, and the multinational enterprise. Further, I explore how CIA explains strategic governance decisions related to a range of contemporary phenomena in international business and strategic management, such as regionalization, emerging economy multinationals, trading favours and sustainability. My thesis includes eight essays representing conceptual and empirical applications of CIA to the above subject matter. More specifically, the eight studies address: 1) the properties of internalization theory as a general theory of international strategic management; 2) internalization theory treatment of the regionalization phenomenon as compared to alternative theoretical frameworks; 3) application of internalization theory in the emerging economy context; 4) extension and refinement of TCE behavioural assumptions in the context of a multidivisional industrial enterprise; 5) analysis of family firm-type governance from a TCE perspective; 6) application of TCE to investigate determinants of longevity and survival of family-type governance; 7) application of TCE to explore comparative efficiency of trading favours; and 8) application of CIA to strategic governance challenges in the context of corporate sustainability. I conclude that CIA provides a valuable conceptual lens to explicate the essence of strategic governance; I hope that this dissertation has laid a foundation for a unified CIA approach that brings together various streams of literature, namely work in the realm of international business, strategic management, entrepreneurship and sustainability.
A machine learning framework for cardiovascular health prediction modeling the interplay between various environmental, neighborhood and socio-economic features: a German-wide application
Creators: name: Nikolaou, Nikolaos
name: Cea, Donatella
name: Valizadeh, Mahyar
name: Behzadi, Sahar
name: Staab, Jeroen
name: Dallavalle, Marco
name: Piraud, Marie
name: Peters, Annette
name: Schneider, Alexandra
name: Taubenböck, Hannes
name: Wolf, Kathrin
Publisher: name: Zenodo
Year: 2023

description: Although there is strong evidence that human health and well-being are strongly associated with the exposure to several environmental variables as well as our socio-economic and neighborhood settings, yet their interplay is not adequately analyzed and consequently not well understood. We aimed to build a machine learning (ML) pipeline, able to sufficiently identify the driving contextual factors for cardiovascular health. We conducted a comprehensive comparison of traditional regression approaches with multiple ML algorithms, from neighbor- to tree-based, boosting and deep learning methodologies, to predict cardiovascular mortality rates across Germany. We then extended our work on the investigation of the additional influence of individual risk factors for hypertension, an important risk factor for CVD morbidity and mortality, by using data from the largest epidemiological study in Germany, the German National Cohort. The results are presented in the attached slides. 
 
This work was funded by the Helmholtz Association's Initiative and Networking Fund (INF): ZT-I-PF-5-42
Harnessing the Benefits of Glycine Supplementation for Improved Pancreatic Microcirculation and Therapeutic Progress in Type 1 Diabetes Mellitus
Creators: name: Liu, Mingming
Publisher: name: figshare
Year: 2023
Subjects: Pathology (excl. oral pathology)

description: Diagram showing the induction, characterization and the time periods of administration of glycine or its vehicle (drinking water) to the diabetic BALB/c mice.
Bureaucracy and Thoughtlessness: Totalitarian Evil in the Political Theory of Hannah Arendt
Creators: name: Lilly, Meredith Paige
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: General
subject: Arendt
subject: Bureaucracy
subject: Thoughtlessness
subject: Totalitarianism

description: Hannah Arendt’s theory of the banality of evil was inspired by her experience with the totalitarian governments of the twentieth century. However, Arendt argued that the thoughtlessness which was at the root of this banal evil was not unique to totalitarianism. Rather, it was a function of modernity. The bureaucratic governments that have become synonymous with political life in recent decades act as a hedge between individuals and certain stimuli for thought. Through a close reading of Arendt’s political theory it is argued that bureaucracy, though generally benign, presents the same temptation to thoughtlessness as totalitarianism once did.
Photonic quantum memory in two-level ensembles based on modulating the refractive index in time: equivalence to gradient echo memory
Creators: name: Clark, James
name: Heshami, Khabat
name: Simon, Christoph
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a quantum memory protocol that allows to store light in ensembles of two-level atoms, e.g. rare-earth ions doped into a crystal, by modulating the refractive index of the host medium of the atoms linearly in time. We show that under certain conditions the resulting dynamics is equivalent to that underlying the gradient echo memory protocol, which relies on a spatial gradient of the atomic resonance frequencies. We discuss the prospects for an experimental implementation.
description: 5 pages, 2 figures
Strong Coulomb drag and broken symmetry in double-layer graphene
Creators: name: Gorbachev, R. V.
name: Geim, A. K.
name: Katsnelson, M. I.
name: Novoselov, K. S.
name: Tudorovskiy, T.
name: Grigorieva, I. V.
name: MacDonald, A. H.
name: Watanabe, K.
name: Taniguchi, T.
name: Ponomarenko, L. A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Spatially separated electron systems remain strongly coupled by electron-electron interactions even when they cannot exchange particles, provided that the layer separation d is comparable to a characteristic distance l between charge carriers within layers. One of the consequences of this remote coupling is a phenomenon called Coulomb drag, in which an electric current passed through one of the layers causes frictional charge flow in the other layer. Previously, only the regime of weak (d>>l) to intermediate (d ~ l) coupling could be studied experimentally. Here we use graphene-BN heterostructures with d down to 1 nm to probe interlayer interactions and Coulomb drag in the limit d<
The Chromospheric Telescope
Creators: name: Bethge, C.
name: Peter, H.
name: Kentischer, T. J.
name: Halbgewachs, C.
name: Elmore, D. F.
name: Beck, C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We introduce the Chromospheric Telescope (ChroTel) at the Observatorio del Teide in Izana on Tenerife as a new multi-wavelength imaging telescope for full-disk synoptic observations of the solar chromosphere. We describe the design of the instrument and summarize its performance during the first one and a half years of operation. We present a method to derive line-of-sight velocity maps of the full solar disk from filtergrams taken in and near the He I infrared line at 10830 Å.
description: 12 pages, 9 figures
Resolving conflicts between statistical methods by probability combination: Application to empirical Bayes analyses of genomic data
Creators: name: Bickel, David R.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Methodology (stat.ME)
subject: Information Theory (cs.IT)
subject: Statistics Theory (math.ST)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: FOS: Biological sciences

description: In the typical analysis of a data set, a single method is selected for statistical reporting even when equally applicable methods yield very different results. Examples of equally applicable methods can correspond to those of different ancillary statistics in frequentist inference and of different prior distributions in Bayesian inference. More broadly, choices are made between parametric and nonparametric methods and between frequentist and Bayesian methods. Rather than choosing a single method, it can be safer, in a game-theoretic sense, to combine those that are equally appropriate in light of the available information. Since methods of combining subjectively assessed probability distributions are not objective enough for that purpose, this paper introduces a method of distribution combination that does not require any assignment of distribution weights. It does so by formalizing a hedging strategy in terms of a game between three players: nature, a statistician combining distributions, and a statistician refusing to combine distributions. The optimal move of the first statistician reduces to the solution of a simpler problem of selecting an estimating distribution that minimizes the Kullback-Leibler loss maximized over the plausible distributions to be combined. The resulting combined distribution is a linear combination of the most extreme of the distributions to be combined that are scientifically plausible. The optimal weights are close enough to each other that no extreme distribution dominates the others. The new methodology is illustrated by combining conflicting empirical Bayes methodologies in the context of gene expression data analysis.
Ignacio Cervantes and Forty Danzas in the Context of Nineteenth-Century Cuban Nationalism
Creators: name: Williams, Shari
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Music
subject: Cuba
subject: Cervantes
subject: Danzas

description: Amidst independence-driven insurgency in the nineteenth century, the inhabitants of Cuba had created a localized creole culture that was distinct from their Spanish colonizers. Musically, the contradanza was a prime example of this process. It began as accompaniment for a Western European social dance before evolving into a salon-style genre that incorporated the various musical styles from the island’s diverse population. Local pianist and composer Ignacio Cervantes made the most significant contributions to this genre in the late nineteenth century. His sophisticated approach to these miniature pieces revitalized the contradanza, and his works are considered the pinnacle of this creolized Cuban form in the present day. The objective of this thesis is to examine the contribution of Cervantes’ danzas to the development of Cuban art music as a whole, and to show how they can be used as an interpretative tool to study the emergence of Cuban identity in the 1800s. Using scores from 40 Danzas, I will examine the ways in which Cervantes combined his own individual artistic style, nineteenth century European compositional techniques, and Afro-Caribbean influences in a Cuban context.
Contours of the Religious Voting Cleavage in 21st Century New Brunswick
Creators: name: Carleton, Alexander James Richards
Publisher: name: Graduate Studies
Year: 2017
Subjects: subject: Political Science
subject: FOS: Political science
subject: Political Science
subject: religion
subject: New Brunswick

description: At the federal level of elections in Canada, the years from 2000-2011 saw a cooling of a longstanding trend: Catholics voting for the Liberals. This constituency has been a staple of their electoral coalition and a large part of their success in the 20th century. An analysis of voting habits in New Brunswick reveals that voting by religion is still a phenomenon in the province, with Catholics holding on to their traditional preference. This remains the case in the province even across a variety of social and demographic variables.
How universal is the Wigner distribution?
Creators: name: Masuku, Mthokozisi
name: Rodrigues, João P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Probability (math.PR)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Applications (stat.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: We consider Gaussian ensembles of m N x N complex matrices. We identify an enhanced symmetry in the system and the resultant closed subsector, which is naturally associated with the radial sector of the theory. The density of radial eigenvalues is obtained in the large N limit. It is of the Wigner form only for m=1. For m \ge 2, the new form of the density is obtained.
description: 16 pages; references added
Assessment of novel therapeutic approaches in the YAC128 mouse model of Huntington disease
Creators: name: Pouladi, Mahmoud A.
Publisher: name: University of British Columbia
Year: 2011

description: Huntington disease (HD) is a progressive disorder characterized by involuntary movements, emotional disturbances, and memory loss. There is currently no cure for HD. Accumulating evidence has implicated excitotoxicity, a process in which excessive signaling via the glutamate receptors results in neurotoxicity, in HD. The main aim of the studies presented was to evaluate the potential of small molecules known to target excitotoxicity-related pathways in the YAC128 mouse model of HD. We examined whether treatment with memantine, a clinically well-tolerated NMDA receptor antagonist, can improve the phenotype of YAC128 mice. We demonstrated that treatment with memantine results in improvements in motor function and rescues the striatal deficits in a dose-specific manner. Rasagiline is a selective inhibitor of monoamine oxidase type B (MAO-B) clinically approved for the treatment of Parkinson’s disease that has been shown to protect against a number of neurotoxic stimuli. We demonstrate that rasagiline protects against striatal lesioning in acute models of excitotoxicity and improves the motor function of the YAC128 mice. We next examined the effect of treatment with a combination of memantine and rasagiline on the phenotype of the YAC128 mice. We demonstrate that treatment with a combination of memantine and rasagiline provides early and sustained improvements in motor function and rescues striatal deficits in the YAC128 mice. Induction of a heat shock protein (HSP) response has been shown to be neuroprotective in models of excitotoxicity and polyglutamine-induced neurodegenerative disease. We examined whether treatment with arimoclomol, a compound shown to enhance the HSP response, can improve the phenotype of the YAC128 mice. Our findings demonstrate that treatment with arimoclomol does not lead to up-regulation of an HSP response or rescue of the behavioural and striatal deficits in the YAC128 mice. Finally, we characterize psychiatric disturbances in YAC128 mice, demonstrating that YAC128 mice exhibit depressive-like symptoms as assessed by the Porsolt forced swim test and the sucrose consumption test of anhedonia. These measures may be employed in assessing any anti-depressive effects of candidate treatments in preclinical therapeutic trials. Our findings suggest that targeting excitotoxicity may be a viable therapeutic approach in HD.