Browsing Mathematics (Faculty of) by Type "Article"
Now showing items 61-80 of 321
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Critical Dynamics In Population Vaccinating Behavior
(National Academy of Sciences, 2017-12-26)Vaccine refusal can lead to renewed outbreaks of previously eliminated diseases and even delay global eradication. Vaccinating decisions exemplify a complex, coupled system where vaccinating behavior and disease dynamics ... -
Critical exponents of infinite balanced words
(Elsevier, 2019-07-19)Over an alphabet of size 3 we construct an infinite balanced word with critical exponent 2 + root2/2. Over an alphabet of size 4 we construct an infinite balanced word with critical exponent (5 + root5)/4. Over larger ... -
Cyberheroes: The Design and Evaluation of an Interactive Ebook to Educate Children about Online Privacy
(Elsevier, 2017-07)We designed an educational interactive ebook called Cyberheroes and evaluated it to assess its effectiveness at increasing children’s online privacy knowledge and behaviour, and supporting child-parent privacy-related ... -
Debate: what is the best method to monitor surgical performance?
(BioMed Central, 2016-04-05)Background There is considerable recent interest in the monitoring of individual surgeon or hospital surgical outcomes. If one aggregates data over time and assesses performance with a funnel plot, then the detection ... -
Decidability and k-Regular Sequences
(Elsevier, 2020-05)In this paper we consider a number of natural decision problems involving k-regular sequences. Specifically, they arise from considering • lower and upper bounds on growth rate; in particular boundedness, • images, • ... -
Defining gameful experience as a psychological state caused by gameplay: Replacing the term ‘Gamefulness’ with three distinct constructs
(Elsevier, 2019-07)Background and Aim Gamefulness is commonly cited as the primary goal of gamification, a family of approaches employed in education, business, healthcare, government, and elsewhere. However, gamefulness is defined ... -
A deletion–contraction relation for the chromatic symmetric function
(Elsevier, 2020-10)We extend the definition of the chromatic symmetric function XG to include graphs G with a vertex-weight function w : V (G) --> N. We show how this provides the chromatic symmetric function with a natural deletion-contraction ... -
Dependence modeling for multi-type recurrent events via copulas
(Wiley, 2019-09-20)When several types of recurrent events may arise, interest often lies in marginal modeling and studying the nature of the dependence structure. In this paper, we propose a multivariate mixed-Poisson model with the dependence ... -
Dependence of model energy spectra on vertical resolution
(American Meteorological Society, 2016-03)Many high-resolution atmospheric models can reproduce the qualitative shape of the atmospheric kinetic energy spectrum, which has a power-law slope of −3 at large horizontal scales that shallows to approximately −5/3 in ... -
Design of cancer trials based on progression-free survival with intermittent assessment
(Wiley, 2018-03-26)Therapeutic advances in cancer mean that it is now impractical to performed phase III randomized trials evaluating experimental treatments on the basis of overall survival. As a result, the composite endpoint of progression-free ... -
The Design of Intervention Trials Involving Recurrent and Terminal Events
(Springer, 2013)Clinical trials are often designed to assess the effect of therapeutic interventions on the incidence of recurrent events in the presence of a dependent terminal event such as death. Statistical methods based on multistate ... -
Detecting an Odd Hole
(Association for Computing Machinery, 2020-02)We give a polynomial-time algorithm to test whether a graph contains an induced cycle with length more than three and odd. -
Digraphs with All Induced Directed Cycles of the Same Length are not → χ -Bounded
(2022-10-07)For t > 2, let us call a digraph D t-chordal if all induced directed cycles in D have length equal to t. In an earlier paper, we asked for which t it is true that t-chordal graphs with bounded clique number have bounded ... -
Dimensional dependence of the Stokes-Einstein relation and its violation
(American Institute of Physics, 2013-10-28)We generalize to higher spatial dimensions the Stokes-Einstein relation (SER) as well as the leading correction to diffusivity in finite systems with periodic boundary conditions, and validate these results with numerical ... -
Discrete viscous sheets
(Association for Computing Machinery, 2012-07)We present the first reduced-dimensional technique to simulate the dynamics of thin sheets of viscous incompressible liquid in three dimensions. Beginning from a discrete Lagrangian model for elastic thin shells, we apply ... -
Disease Dynamics And Costly Punishment Can Foster Socially Imposed Monogamy
(Nature Publishing Group, 2016-04-01)Socially imposed monogamy in humans is an evolutionary puzzle because it requires costly punishment by those who impose the norm. Moreover, most societies were-and are-polygynous; yet many larger human societies transitioned ... -
Disease Interventions Can Interfere With One Another Through Disease-Behaviour Interactions
(Public Library of Science, 2015-06-01)Theoretical models of disease dynamics on networks can aid our understanding of how infectious diseases spread through a population. Models that incorporate decision-making mechanisms can furthermore capture how behaviour-driven ... -
Dispersing representations of semi-simple subalgebras of complex matrices
(Elsevier, 2022-06-01)In this paper we consider the problem of determining the maximum dimension of P?(A!B)P, where A and B are unital, semi-simple subalgebras of the set Mn of n⇥n complex matrices, and P 2 M2n is a projection of rank n. We ... -
Disproportionate Division
(Wiley, 2020-10-01)We study the disproportionate version of the classical cake-cutting problem: how efficiently can we divide a cake, here [0,1], among n ≥ 2 agents with different demands α1, α2,..., αn summing to 1? When all the agents have ... -
Does Cox analysis of a randomized survival study yield a causal treatment effect?
(Springer US, 2015-10)Statistical methods for survival analysis play a central role in the assessment of treatment effects in randomized clinical trials in cardiovascular disease, cancer, and many other fields. The most common approach to ...