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AbstractThis article examines the complex and contested praxis of "doing politics," both publicly and privately, among female politicians in Senegal. It explores women's political practices comprising myriad gendered performances of femininity, generosity, and hospitality—elements of what I deem theterànga(hospitality) ethos. This article contributes to the existing literature focusing on hospitality and exchange in conversation with theories of gender and political action from an African perspective. Through a contrastive lens, I explore how women in politics not only engage in the practice of terànga as an obligation and performance of gendered norms for doing politics but also as a means of subverting existing limitations for political and personal opportunity.

Many small organisms self-propel in viscous fluids using travelling wave-like deformations of their bodies or appendages. Examples include small nematodes moving through soil using whole-body undulations or spermatozoa swimming through mucus using flagellar waves. When self-propulsion occurs in a non-Newtonian fluid, one fundamental question is whether locomotion will occur faster or slower than in a Newtonian environment. Here we consider the general problem of swimming using small-amplitude periodic waves in a viscoelastic fluid described by the classical Oldroyd-B constitutive relationship. Using Taylor's swimming sheet model, we show that if all travelling waves move in the same direction, the locomotion speed of the organism is systematically decreased. However, if we allow waves to travel in two opposite directions, we show that this can lead to enhancement of the swimming speed, which is physically interpreted as due to asymmetric viscoelastic damping of waves with different frequencies. A change of the swimming direction is also possible. By analysing in detail the cases of swimming using two or three travelling waves, we demonstrate that swimming can be enhanced in a viscoelastic fluid for all Deborah numbers below a critical value or, for three waves or more, only for a finite, non-zero range of Deborah numbers, in which case a finite amount of elasticity in the fluid is required to increase the swimming speed. ; This work was funded in part by the European Union through a Marie Curie CIG Grant to E.L. ; This is the author accepted manuscript. The final version is available from Elsevier via http://dx.doi.org/10.1016/j.jtbi.2015.06.045

Purpose and setting: Infrastructure is a global multi-trillion dollar market presenting many opportunities and risks for sustainable development. This article aims to foster better conceptualisation of the connections and tensions between infrastructure policy and public health in the light of the Sustain-able Development Goals, especially 'good health and wellbeing' (number 3) and 'industry, innovation and infrastructure' (number 9), based on findings from interviews with a purposive sample of senior practicing Australian infrastructure policy makers. Principal findings: We use an institutional framework to explore the ideas, actors, rules and mandates, and procedures underpinning the inclusion of health in infrastructure policy. Informants defined infrastructure as the construction and provision of services that facilitate economic, environmental and social outcomes. The tendency to default to infrastructure as essential for economic success has fundamental challenges for the SDGs, particularly the politically driven pursuit of 'mega-project' legacies, sector-specific siloed governance arrangements, and inadequate conceptualisations of costs and benefits. Conclusions: Public health and infrastructure policy are mutually re-enforcing given they both concern the public interest with implications for all 17 SDGs. Positioning health and wellbeing as fundamental societal outcomes from infrastructure decisions would go a long way to helping achieve the SDGs. ; This research was funded by a Sydney University Kickstart Grant, funded by the Balnaves Foundation. Patrick Harris is funded by an Australian National Health and Medical Research Council Fellowship (APP1090644).

This multidisciplinary book explores African women's networks and their interventions as they work to achieve social and political change. Such networks - historic, real, virtual, and imagined - expose existing gender hierarchies, while also making progress toward gender equality.