• Mutation rates of Escherichia coli with different balanced growth rates: a new fluctuation test protocol and phenotypic lag adjustments 

  Barna, Christian Henderson (University of Waterloo, 2020-10-23)

  Bacteria are the oldest, most abundant life form on the planet, and every other organism’s livelihood is dependent on them. The bacteria Escherichia coli (E. coli) is commonly used in microbiology as a model organism to ...

• Estimating the COVID-19 R number: a bargain with the devil? 

  Bauch, Chris T. (Elsevier, 2020-10-22)

  The basic reproduction number R0 is the average number of infections produced by a single infectious person in a population with no immunity. R0 has a close relative named the effective reproduction number R: the average ...

• Coherent delocalization in the light-matter interaction 

  Stritzelberger, Nadine (University of Waterloo, 2020-10-08)

  In this thesis, we study coherent delocalization in the light-matter interaction: we investigate how the coherent center of mass delocalization of a first quantized system affects its interaction with a second quantized ...

• On the Application of Bandlimitation and Sampling Theory to Quantum Field Theory 

  Pye, Jason (University of Waterloo, 2020-10-07)

  It is widely believed that combining the uncertainty principle with gravity will lead to an effective minimum length scale. A particular challenge is to specify this scale in a coordinate-independent manner so that covariance ...

• Implementation of Kalman Filtering for Differential-Algebraic Equations 

  Sherbak, Bogdan (University of Waterloo, 2020-09-28)

  This thesis describes two Kalman filters which are usable on semi-explicit index-1 differential-algebraic equations, prior to which a discussion of linear and nonlinear Kalman filters is presented. Performance between ...

• Challenges in epidemiological modelling: from socio-virulence dynamics to HIV interventions in MSM populations. 

  Pharaon, Joe (University of Waterloo, 2020-09-28)

  The spread of infectious diseases is one of the biggest challenges that public health faces nowadays. Their control is often not an easy task. Social behaviour plays an important role in disease prevention. However, the ...

• Quantum fields and machine learning 

  Melgarejo Lermas, Irene (University of Waterloo, 2020-09-25)

  In this thesis, we use detector models to study various properties of quantum fields. One such property is the correlations present in fields. It is known that two uncorrelated detectors, upon coupling to a quantum field, ...

• The Dynamics of the Beaufort Gyre 

  Webb, Elizabeth (University of Waterloo, 2020-09-23)

  The Beaufort gyre is located in the Canadian Arctic basin and is responsible for the dominant circulation of the Beaufort Sea. Currently, the gyre flows in an anti-cyclonic direction, which leads to the deflection of fresh ...

• Simulating Wintertime Lake Dynamics Using the MITgcm Ice Model 

  Walsh, Sarah (University of Waterloo, 2020-09-23)

  Lake Erie is an important source of drinking water, a location for recreational activities and a haven for unique ecosystems (e.g. Point Pelee). Recent research has suggested that some wintertime processes are significantly ...

• The Instability of Geophysical Flows: Two-layer Frontal Instabilities and Continuously Stratified Inertial Instabilities 

  Harris, Matthew (University of Waterloo, 2020-09-11)

  This thesis examines the instabilities of idealized two layer fronts with vertically curved interfaces as well as the inertial instabilities of barotropic and baroclinic jets with background linear stratification. We ...

• Global land use and the future of sustainable consumption: projections of a coupled social-land use model 

  Pal, Saptarshi (University of Waterloo, 2020-09-10)

  Throughout history, agricultural land use activities have shaped the environment and its inhabitants. Humans have sought to maintain their well-being for centuries by finding revolutionary ways to produce and gather food. ...

• Space-time hybridizable discontinuous Galerkin methods for free-surface wave problems 

  Sosa Jones, Giselle (University of Waterloo, 2020-08-28)

  Free-surface problems arise in many real-world applications such as in the design of ships and offshore structures, modeling of tsunamis, and dam breaking. Mathematically, free-surface wave problems are described by a set ...

• Using numerics to explore the EPRL spinfoam amplitude 

  Allen, Courtney (University of Waterloo, 2020-08-25)

  The use of numerical methods in loop quantum gravity is still relatively untapped. Numerical methods are, however, a useful tool, and offer access to regimes that are as of yet inaccessible by analytical methods. This ...

• Topics in early and late Universe cosmology 

  Sarma Boruah, Supranta (University of Waterloo, 2020-08-11)

  In this thesis, we explore different problems in various areas of cosmology. The inflationary paradigm has been very successful in explaining cosmological observations. However, some problems still linger on. In the ...

• Feature Identification 

  Shaw, Justin (University of Waterloo, 2020-08-04)

  We present several methods for identifying time periods of interest (features) in a wide range of data sets. The gamma method is a computationally inexpensive, flexible feature identification method which uses a comparison ...

• Late-lumping backstepping control of partial differential equations 

  Auriol, Jean; Morris, Kirsten A.; Di Meglio, Florent (Elsevier, 2019-02)

  We consider in this paper three different partial differential equations (PDEs) that can be exponentially stabilized using backstepping controllers. For implementation, a finite-dimensional controller is generally needed. ...

• Numerical Simulation of Nonlinear and Dispersive Wave Equations using Adaptive Mesh Refinement (AMR) 

  Rahman, G M Ashikur (University of Waterloo, 2020-06-24)

  Numerical solution of time dependent Partial Differential Equations plays an important role in different fluid flow modelling problems. Sometimes a little portion of the computational domain needs high grid resolution in ...

• Zero dynamics for networks of waves 

  Jacob, Birgit; Morris, Kirsten A.; Zwart, Hans (Elsevier, 2019-05)

  The zero dynamics of infinite-dimensional systems can be difficult to characterize. The zero dynamics of boundary control systems are particularly problematic. In this paper the zero dynamics of port-Hamiltonian systems ...

• Modelling resilience and sustainability of complex human-environment systems in agriculture and ecology 

  Fair, Kathyrn (University of Waterloo, 2020-06-01)

  As we move further into the Anthropocene, numerous challenges to sustainable development present themselves. Questions abound: How do we feed a growing population? What steps must we take to conserve ecologically valuable ...

• From Fundamentals to Spectroscopic Applications of Density Functional Theory 

  Lyon, Keenan (University of Waterloo, 2020-05-29)

  Density functional theory (DFT) and its time-dependent counterpart (TDDFT) are crucial tools in material discovery, drug design, biochemistry, catalysis, and nanoscience. However, despite its exact theoretical basis, ...

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