34 research outputs found
Reconceptualising Personas Across Cultures: Archetypes, Stereotypes & Collective Personas in Pastoral Namibia
The paucity of projects where persona is the research foci and a lack of consensus on this artefact keep many reticent about its purpose and value. Besides crafting personas is expected to differ across cultures, which contrasts the advancements in Western theory with studies and progress in other sites. We postulate User-Created Personas reveal specific characteristics of situated contexts by allowing laypeople to design persona artefacts in their own terms. Hence analysing four persona sessions with an ethnic group in pastoral Namibia –ovaHerero– brought up a set of fundamental questions around the persona artefact regarding stereotypes, archetypes, and collective persona representations: (1) to what extent user depictions are stereotypical or archetypal? If stereotypes prime (2) to what degree are current personas a useful method to represent end-users in technology design? And, (3) how can we ultimately read accounts not conforming to mainstream individual persona descriptions but to collectives
Modeling Within-Host Dynamics of Influenza Virus Infection Including Immune Responses
Influenza virus infection remains a public health problem worldwide. The mechanisms underlying viral control during an uncomplicated influenza virus infection are not fully understood. Here, we developed a mathematical model including both innate and adaptive immune responses to study the within-host dynamics of equine influenza virus infection in horses. By comparing modeling predictions with both interferon and viral kinetic data, we examined the relative roles of target cell availability, and innate and adaptive immune responses in controlling the virus. Our results show that the rapid and substantial viral decline (about 2 to 4 logs within 1 day) after the peak can be explained by the killing of infected cells mediated by interferon activated cells, such as natural killer cells, during the innate immune response. After the viral load declines to a lower level, the loss of interferon-induced antiviral effect and an increased availability of target cells due to loss of the antiviral state can explain the observed short phase of viral plateau in which the viral level remains unchanged or even experiences a minor second peak in some animals. An adaptive immune response is needed in our model to explain the eventual viral clearance. This study provides a quantitative understanding of the biological factors that can explain the viral and interferon kinetics during a typical influenza virus infection
An Integrative multi-lineage model of variation in leukopoiesis and acute myelogenous leukemia
Numerical Bifurcation Analysis of Physiologically Structured Population Models via Pseudospectral Approximation
'Standing the gaff': Immiseration and its consequences in the de-industrialised mining communities of Cape Breton Island
This paper applies Marx’s concept of immiseration to the mining communities of Cape Breton Island, Nova Scotia, in an attempt to conceptualise the consequences of de-industrialisation. We identify and explore a series of specific social, economic, historical, political and geographic circumstances that have militated against the radicalisation predicted by Marx, but nonetheless conclude that the concept of immiseration continues to have contemporary relevance. Economic hardship, out-migration on an unprecedented scale and a collapse of confidence at both an individual and collective level are the consequences of de-industrialisation and reveal the contemporary experience and purpose of immiseration. First, it is a process through which a geographically isolated population of workers have become conditioned either to accept poor work in terms of lower wages and conditions, or to become economic migrants. Second, it is a process through which new opportunities for profitability and investment are established for new investors