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Debunking rumor in the presence of time delays and saturated rates: An optimal control approach
No full textAbstract
The rapid diffusion of a false rumor in a large population may possibly yield serious consequences. Releasing clarifying messages against the rumor is a common measure of containing rumor spreading. There exist time delays in rumor spreading, which have notable influence on the velocity and range of rumor spreading. In the presence of time delays, the problem of effectively releasing rumor-clarifying messages is addressed. First, a controlled rumor spreading model, in which four time delays are taken into account, is advised. Building on this, the original problem boils down to a delayed optimal control model. By invoking Pontryagin minimum principle, the associated optimality system is deduced. Thereby, the control model is solved algorithmically. Next, the effectiveness of the proposed algorithm is validated. Finally, the influence of the time delays is examined. This work contributes to effective rumor control
Introduction: Media, democracy, and the global rise of the far right
No full textIntroduction: Media, democracy, and the global rise of the far righ
“Who are they? What does that mean for care?”: An exploratory descriptive study of clinicians’ experiences of caring for patients and family members from culturally diverse backgrounds
No full text“Who are they? What does that mean for care?”: An exploratory descriptive study of clinicians’ experiences of caring for patients and family members from culturally diverse background
The emperor’s new personalised learning: Adaptive, AI-driven and undressed
No full textThe emperor’s new personalised learning: Adaptive, AI-driven and undresse
Gender equity policy and visibility politics in the film and television industries
No full textThis article improves our understanding of visibility in relation to gender equity policy in the film and TV industries and beyond, where visibility is typically imagined to be positive or beneficial. Drawing on new empirical data from an internationally comparative study of gender equity policy in film and TV in the UK, Canada and Germany, we identify three imaginaries of visibility in relation to gender equity policies: visibility is imagined as evidencing problems, as providing a solution and as demonstrating action. We show that imagining visibility in these ways limits the scope of gender inequities considered for policy intervention and creates the potential for counter-productive unintended consequences. We argue that advocating for, developing and implementing effective gender equity policy requires challenging and complicating current ideas of how visibility works in policy making. As the visibility of marginalised groups is so central to gender equity, yet rarely approached critically by policy makers, this article makes an important contribution to the literature around equity in public policy broadly
Critical care nurses’ lived experience of compassion fatigue in the intensive care unit: A phenomenological study
No full textCritical care nurses’ lived experience of compassion fatigue in the intensive care unit: A phenomenological stud
Advanced photocatalytic ozonation processes for emerging contaminants removal: Mechanisms, strategies, and operational insights
No full textAdvanced photocatalytic ozonation processes for emerging contaminants removal: Mechanisms, strategies, and operational insights</p
Effect of dietary vitamin B5 supplementation on energy fortification of Atlantic salmon (Salmo salar L.)
No full textEffect of dietary vitamin B5 supplementation on energy fortification of Atlantic salmon (Salmo salar L.