University of Waterloo
This institution-wide community is designed to house collections of Waterloo created electronic research that span the institution or are not logically subsumed by a single faculty sub-community.
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Pharmacokinetic modelling of clinically relevant situations in the treatment of hemophilia A and B
(University of Waterloo, 2020-04-03)Hemophilia is a congenital bleeding disorder caused by deficiency of clotting factor VIII (FVIII; hemophilia A) or IX (FIX; hemophilia B). Severe hemophilia patients have less than 1% (or 1 IU/dL) of normal factor activity, ... -
A spatial version of Wedderburn’s Principal Theorem
(Taylor & Francis, 2015)In this article we verify that ‘Wedderburn’s Principal Theorem’ has a particularly pleasant spatial implementation in the case of cleft subalgebras of the algebra of all linear transformations on a finite-dimensional vector ... -
Universal bounds for positive matrix semigroups
(Polish Academy of Sciences, 2016)We show that any compact semigroup of positive n×n matrices is similar (via a positive diagonal similarity) to a semigroup bounded by n√. We give examples to show this bound is best possible. We also consider the effect ... -
Reducibility of operator semigroups and values of vector states
(Springer, 2017-08-01)Let S be a multiplicative semigroup of bounded linear operators on a complex Hilbert space H, and let Ω be the range of a vector state on S so that Ω = {⟨Sξ, ξ⟩ : S ∈ S} for some fixed unit vector ξ ∈ H. We study the ... -
Compact ideals and rigidity of representations for amenable operator algebras
(Polish Academy of Sciences, 2019)We examine rigidity phenomena for representations of amenable operator algebras which have an ideal of compact operators. We establish that a generalized version of Kadison’s conjecture on completely bounded homomorphisms ... -
Residual finite dimensionality and representations of amenable operator algebras
(Elsevier, 2019-04-15)We consider a version of a famous open problem formulated by Kadison, asking whether bounded representations of operator algebras are automatically completely bounded. We investigate this question in the context of amenable ... -
Approaches to understanding and measuring women’s empowerment and its relationship with women’s and children’s dietary diversity in sub-Saharan Africa.
(University of Waterloo, 2020-04-02)Background Women’s empowerment has been identified as a key component of development policies since in many cases, there are existing and widening gender gaps in wellbeing including in access to improved nutrition ... -
Abelian, amenable operator algebras are similar to C∗ -algebras
(Duke University Press, 2016-12)Suppose that H is a complex Hilbert space and that ℬ(H) denotes the bounded linear operators on H. We show that every abelian, amenable operator algebra is similar to a C∗-algebra. We do this by showing that if 𝒜⊆ℬ(H) is ... -
Ranges of vector states on irreducible operator semigroups
(Springer, 2016)Let 𝜑 be a linear functional of rank one acting on an irreducible semigroup S of operators on a finite- or infinite-dimensional Hilbert space. It is a well-known and simple fact that the range of 𝜑 cannot be a singleton. ... -
On selfadjoint extensions of semigroups of partial isometries
(American Mathematical Society, 2016)Let S be a semigroup of partial isometries acting on a complex, infinite- dimensional, separable Hilbert space. In this paper we seek criteria which will guarantee that the selfadjoint semigroup T generated by S consists ... -
Linear preservers of polynomial numerical hulls of matrices
(Elsevier, 2019-08-15)Let Mn be the algebra of all n × n complex matrices, 1 ≤ k ≤ n − 1 be an integer, and φ : Mn −→ Mn be a linear operator. In this paper, it is shown that φ preserves the polynomial numerical hull of order k if and only if ... -
Mechanical Characterization of Soft Materials Using Volume-Controlled Cavitation
(University of Waterloo, 2020-03-31)The mechanical properties of soft materials are used in a wide range of fields and applications including biomedical engineering, sports, and automobile industry, in addition to medical applications. Therefore, several ... -
Biopower, Disciplinary Power and Surveillance: A Qualitative Analysis of the Lived Experience of Drug Users in Vancouver’s Downtown Eastside
(University of Waterloo, 2020-03-31)Focusing on the role of police as primary actors in the arena of citizen safety, this thesis examines the effects of police practices on the daily lived experience of drug users accessing a Supervised Consumption Site ... -
Microwave Near-Field Imaging and Material Characterization
(University of Waterloo, 2020-03-27)In recent years, microwave imaging has attracted many researchers from various fields such as medical imaging, remote sensing, and industrial ones because of its high degree of penetration, non-ionizing and safe nature, ... -
Fixing an Accident of History: Assessing a social insurance model to achieve adequate universal drug insurance
(University of Waterloo, 2020-03-27)Canada’s drug insurance system remains fragmented and expensive. The plethora of private and public plans still do not adequately cover all Canadians. Demographic changes, disease profiles and the introduction of many new ... -
Weaving connections: A case study examining the experiences of a community-initiated social leisure program for individuals with dementia and their care partners
(University of Waterloo, 2020-03-27)There are currently 564,000 Canadians living with dementia, and this number is anticipated to rise significantly (Alzheimer Society of Canada, 2016). Persons with dementia are amongst the most stigmatized groups in society. ... -
Towards Q-analysis Integration in Discrete Global Grid Systems: Methodology, Implications and Data Complexity
(University of Waterloo, 2020-03-27)Spatial data is characterized by rich contextual information with multiple characteristics at each location. The interpretation of this multifaceted data is an integral part of current technological developments, data rich ... -
Defining Haptic Experience: Foundations for Understanding, Communicating, and Evaluating HX
(ACM, 2020-04-25)Haptic technology is maturing, with expectations and evidence that it will contribute to user experience (UX). However, we have very little understanding about how haptic technology can influence people’s experience. ... -
Computing lower rank approximations of matrix polynomials
(Elsevier, 2020-05)Given an input matrix polynomial whose coefficients are floating point numbers, we consider the problem of finding the nearest matrix polynomial which has rank at most a specified value. This generalizes the problem of ... -
Measuring wellbeing performance of carbon emissions using hybrid measure and meta-frontier techniques: Empirical tests for G20 countries and implications for China
(Elsevier, 2019-11-10)A quantitative measure of performance that integrates national-level carbon emission profiles with key parameters of social and economic wellbeing can provide an effective management tool for policy interventions. This ...
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