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Africa's changing societies : Reform from below
- 2012
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Editorial collection (other academic/artistic)abstract
- In NAIs Annual Report 2011 you can read about how military structures lingers in Liberia, about the global rush for land, the importance of understanding local farming techniques, about how African cities drive change, and much more.
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Development Dilemmas : Annual Report 2012
- 2013
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Editorial collection (pop. science, debate, etc.)abstract
- Where is Egypt heading and how does this correspond with popular expectations? It seems that political parties and the people of Zimbabwe are unwilling to go to the polls. There is lots of talk about Africa’s rapid economic growth, but is it trickling down to the continent’s people? The infrastructural crisis in Nigeria has made innovators of the people as they cope with the demands of everyday life. And in Cameroon, education efforts have had a significant impact on the ability of pastoralists to claim their basic civil rights. You can read about all these issues and much more in NAI’s Annual Report 2012.
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The rise of africa : Miracle or mirage?
- 2011
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Editorial collection (other academic/artistic)abstract
- The theme of NAI’s Annual Report 2010 reflects the impressive economic growth and encouraging political developments in many parts of the continent. However, in terms of democracy and human rights there are also worrying signs in several countries. The Annual Report offers a window on to NAI’s work. Drawing on their research, NAI scholars provide readers with engaging stories about the rapidly changing political, economic and social character of African societies.
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- Sjunneskog, Charlotte, 1960-
(author)
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Diatom and Sedimentological Investigations on West Antarctic Shelf Sediment
- 2002
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Doctoral thesis (other academic/artistic)abstract
- Climate and environmental change following the retreat of the last glacial ice sheet in the Antarctic Peninsula has been interpreted, employing diatom abundance, relative abundance of Chaetoceros resting spores and diatom assemblages as proxies. These together with sedimentological data and radiocarbon dating, suggest four major events that can be further subdivided.Deglaciation ~13.2-11.5 kyr BP with ice shelf breakup and strong surface water stratification from melting ice. Climate reversal ~11.5-9.0 kyr BP with turbulent water masses. Climate optimum ~9.0-4.0 kyr BP with intrusions of northern ´warm` water masses. Neoglacial ~4.0 kyr BP-present with extended periods of sea ice cover and increased storm frequency. One aspect of climate change is the stability of marine based ice sheets, and the interaction with underlying sediment. A pilot study on characterizing sediment influenced by past ice streaming (Ross Sea) was performed using diatom, texture and chemical analysis. The results show that:Diamictons are chemically and texturally well homogenized, whereas diatom assemblages suggest different degrees of stratigraphic mixing and reworking related to mode of glacial sediment transport. Mud appears in different stratigraphic sections deposited in sub-ice shelf or ice edge environment, or through winnowing by currents. This is evident through stratigraphically-diverse diatom assemblages and texture. Most sediment characterized as mud is enriched in zinc (Zn). Hemipelagic diatomaceous muds are enriched in barium (Ba) and the diatom assemblage is dominated by typical neritic post-glacial species.
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