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...4.0 Licence Course image: Alpha du centaure in Flickr made available under Creative Commons Attribution 2.0 Licence. Don't miss out: If reading this text has inspired you to learn more, you may be interested in joining the millions of people who discover our free learning resources and qualifications by visiting The Open University - www.open.edu/ openlearn/ free-courses...

...le Paslier, D., Yamada, T., Mende, D.R., Fernandes, G.R., Tap, J., et al. (2011) ‘Enterotypes of the human gut microbiome’, Nature, 473, pp. 174–180. Available at: https://doi.org/10.1038/nature09944 Aune, D., Chan, D.S.M., Lau, R., Vieira, R., Greenwood, D.C., Kampman, E. and Norat, T. (2011) ‘Dietary fibre, whole grains, and risk of colorectal cancer: systematic...

...Du Cane Medical Imagine Ltd / Science Photo Library 227677: Figure 2: Copyright Holder Unknown 227680: Figure 4: Copyright Holder Unknown 227683: Figure 5: cylonphoto / 123RF 227690: Figure 7: Copyright Holder Unknown 227707: Figure 10: Copyright Holder Unknown 227713: Figure 13: Royal Society of Chemistry 227715: Figure 14: El Saghir, N. S. et al. (2005)

...le Rond d’Alembert (1717–1783), who is perhaps best remembered for his work in classical mechanics. Indeed, the Cauchy–Riemann equations were written down by d’Alembert in an essay on fluid dynamics in 1752 to describe the velocity components of a two-dimensional irrotational fluid flow. [Described image] Jean le Rond d’Alembert (1717–1783) The...

...les Glaces et l’Activité) instrument, which can detect minerals on the martian surface. Clay minerals and hydrated sulfates, which can only form in the presence of water, were found at Terra Meridiani, Mawrth Vallis, Nili Fossae, Aram Chaos, and Valles Marineris - as well as in isolated locations in the martian Highlands. Combining relative age information obtained...