BackgroundGiven the challenges of aging populations, calls have been issued for more sustainable urban re-development and implementation of local solutions to address global environmental and healthy aging issues. However, few studies have considered older adults’ daily mobility to better understand how local built and social environments may contribute to healthy aging. Meanwhile, wearable sensors and interactive map-based applications offer novel means for gathering information on people’s mobility, levels of physical activity, or social network structure. Combining such data with classical questionnaires on well-being, physical activity, perceived environments and qualitative assessment of experience of places opens new opportunities to assess the complex interplay between individuals and environments. In line with current gaps and novel analytical capabilities, this research proposes an international research agenda to collect and analyse detailed data on daily mobility, social networks and health outcomes among older adults using interactive web-based questionnaires and wearable sensors.Methods/DesignOur study resorts to a battery of innovative data collection methods including use of a novel multisensor device for collection of location and physical activity, interactive map-based questionnaires on regular destinations and social networks, and qualitative assessment of experience of places. This rich data will allow advanced quantitative and qualitative analyses in the aim to disentangle the complex people-environment interactions linking urban local contexts to healthy aging, with a focus on active living, social networks and participation, and well-being.DiscussionThis project will generate evidence about what characteristics of urban environments relate to active mobility, social participation, and well-being, three important dimensions of healthy aging. It also sets the basis for an international research agenda on built environment and healthy aging based on a shared and comprehensive data collection protocol.

In December 1997, the Republic of Kazakhstan officially proclaimed that the city of Astana would be its new capital. The decision to transfer the seat of government from the city of Almaty in the south to the more centrally located Astana was connected to the process of nation building in a multi-ethnic society where the titular nation represents little more than half of the population. Efforts to transform the rather remote regional center, Akmola (later renamed Astana) into a modern capital city have been underway since the late 1990s. One important component of this transformation is the idea of building a "metabolic" and sustainable "Eurasian" city. As the symbolic center of the whole country, this new capital would function as a showpiece of Kazakh culture and identity. The city would also become a symbol of economic prosperity and the regime's geopolitical vision. While the government's intensions are expressed rather openly, it remains unclear to what extent these politically verbalized leitmotivs are actually being realized through contemporary architecture and structure. This article offers a critical assessment of what has been achieved to date and argues that the production of the new Kazakhstani capital has often failed to translate rhetoric into reality.

Abstract. We contribute to this theme issue on “(Re)Thinking population geography” with a critical engagement with the concept of the demographic dividend (DD). We put the DD – a concept based on interactions between demography, development and policy making – under scrutiny and investigate in particular whether a demographization of politics, a criticism concerning political decision-making based on a reductionist use of demographic data, as described by Barlösius (2007) and Schultz (2019), is happening. Our findings, based on literature analysis and interviews with experts working in the field of development cooperation, policy advocacy and demographic research, show that simplistic demographic explanations for economic growth are appealing to political leaders and advocacy groups. In the context of the DD, demographization is being strategically used by advisors and scientists to convince and engage decision makers at all administrative levels in order to promote voluntary family planning, multi-sectoral development policies and human rights. Our research suggests that the well-established and widely used paradigm of the DD might be a prominent example of what we call positive demographization. At the same time, particularly when it comes to the politicization of the female body through demographic intervention, the concept of the DD remains potentially prone to politically motivated interpretation and use.

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