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- Publications
- Influence
'Mode 3' and 'Quadruple Helix': toward a 21st century fractal innovation ecosystem
- Elias G. Carayannis, D. Campbell
- Business, Computer Science
- Int. J. Technol. Manag.
- 23 February 2009
TLDR
Triple Helix, Quadruple Helix and Quintuple Helix and How Do Knowledge, Innovation and the Environment Relate To Each Other?: A Proposed Framework for a Trans-disciplinary Analysis of Sustainable…
- E. Carayannis, D. Campbell
- Engineering
- 2010
This article develops an inter-disciplinary and trans-disciplinary framework of analysis that relates knowledge, innovation and the environment (natural environments) to each other. For that purpose… Expand
The Quintuple Helix innovation model: global warming as a challenge and driver for innovation
- E. Carayannis, T. Barth, D. Campbell
- Economics
- 8 August 2012
The Triple Helix innovation model focuses on university-industry-government relations. The Quadruple Helix embeds the Triple Helix by adding as a fourth helix the ‘media-based and culture-based… Expand
Root causes of land use change in the Loitokitok Area, Kajiado District, Kenya
- D. Campbell, D. Lusch, T. Smucker, E. Wangui
- Geography
- 2003
- 64
- 15
Land use conflict in Kajiado District, Kenya
- D. Campbell, H. Gichohi, A. Mwangi, L. Chege
- Geography
- 1 October 2000
This study explores land use conflict in S.E. Kajiado District, Kenya. The conflict reflects ongoing competition over access to scarce land and water resources between herding, farming and wildlife,… Expand
Natural gas plays in the Marcellus Shale: challenges and potential opportunities.
- David M. Kargbo, R. G. Wilhelm, D. Campbell
- Geology, Medicine
- Environmental science & technology
- 2 June 2010
Tapping the lucrative Marcellus Shale natural gas deposits may have a host of environmental concerns.
Multiple Methods in the Study of Driving Forces of Land Use and Land Cover Change: A Case Study of SE Kajiado District, Kenya
- D. Campbell, D. Lusch, T. Smucker, Edna E. Wangui
- Geography
- 1 December 2005
This landscape-scale study combines analysis of multitemporal satellite imagery spanning 30 years and information from field studies extending over 25 years to assess the extent and causes of land… Expand
Response to Drought Among Farmers and Herders in Southern Kajiado District, Kenya: A Comparison of 1972-1976 and 1994-1995
- D. Campbell
- Economics
- 1 September 1999
This article examines continuity and change in farming and herder communities' strategies for coping with food deficits in S.E. Kajiado District, Kenya, through a comparison of coping strategies… Expand
Depression of tree recruitment by the Pacific rat (Rattus exulans Peale) on New Zealand's northern offshore islands
- D. Campbell, I. Atkinson
- Biology
- 1 September 2002
Recruitment of tree populations on islands with and without Rattus exulans Peale, and recruitment changes on islands before and after rat eradication are compared using size-class analyses. Seedling… Expand
Chemical and carbon isotopic evidence for the source and fate of dissolved organic matter in the northern Everglades
- Y. Wang, Y. Hsieh, W. Landing, Y. H. Choi, V. Salters, D. Campbell
- Environmental Science
- 1 December 2002
Surface waters in the Florida Everglades contain high levels ofdissolved organic carbon (DOC) compounds. δ13C values of DOCsamples collected from the northern Everglades indicate that less than… Expand