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Fall 2017

Tang, Yao

Water contamination by ammonium ions presents huge risks to the ecosystems. This work evaluated the potential application of digested sludge pyrolyzed biochar on ammonium removal. Anaerobic digester sludge was collected from a municipal wastewater treatment plant in Alberta, Canada and pyrolyzed...

Fall 2013

Ng, James C

Parabolic partial differential equations (PDEs) are used as models of transport-reaction phenomena in a variety of different industrial chemical and materials engineering processes, and can yield precise descriptions of process variables with complex temporal and spatially dependent system...

Fall 2014

Laur, Joan

This dissertation describes a series of experiments that examined: 1) hydraulic responses of Populus trichocarpa x deltoides, Populus trichocarpa and Picea glauca plants to change in their surrounding environment; 2) Changes of aquaporin expression in response to such changes. In the first study,...

Fall 2012

Yeo, M. Lisa

Enterprises must manage their information risk as part of their larger operational risk management program. Traditionally, IT security investment decisions are made in isolation. However, as firms that compete for customers in an industry are closely interlinked, a macro perspective is needed in...

Fall 2019

Phelps, Brian T.

Development from a juvenile to an adult animal is driven by pulses of steroid hormones released at precise developmental times. Inputs from the environment, timing cues, and nutritional factors are all coordinated to produce a steroid hormone pulse. Insects and in particular, the fruit fly...

Fall 2022

Khan, Shehroze

The spread of disinformation on social media platforms is harmful to society. This harm may manifest as a gradual degradation of public discourse; but it can also take the form of sudden dramatic events such as the 2021 insurrection on Capitol Hill. The social media platforms themselves are in...

Fall 2023

Ortega Moreno, Boris

This dissertation consists of three essays spanning various fields, including energy economics, labor economics, development economics, and regulation. As many jurisdictions worldwide shift towards low-carbon energy sources, energy producers, consumers, and policymakers face new challenges. The...

Fall 2016

Pando Lopez, Luis A

This dissertation deals with the introduction of competition in regulated industries such as natural gas. The thesis focuses on the recently developed Colombian natural gas market and uses a more mature market, the deregulated gas market existing in the province of Alberta, Canada, as a benchmark...

Fall 2011

Ostrem, Jacqueline Grace

While many scholars have argued that media deregulation has a deleterious effect on democracy, all have done so in a way that assumes the truth of a particular normative theory of democracy. This thesis instead describes the minimal requirements for a democratic public sphere and compares...

Spring 2014

Zhang, Longdong

Fugitive emissions of methane (CH4) and carbon dioxide (CO2) from a lagoon containing biosolids were continuously measured using an eddy covariance system for three months. Open Path Fourier Transform Infrared Spectrometry (OP-FTIR) was also used to quantify concentrations of methane and ammonia...