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Astrobiological stoichiometry.
Chemical composition affects virtually all aspects of astrobiology, from stellar astrophysics to molecular biology. We present a synopsis of the research results presented at the "Stellar Stoichiometry" Workshop Without Walls hosted at Arizona State University April 11-12, 2013, under the auspices of the NASA Astrobiology Institute. The results focus on the measurement of chemical abundances an...
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We demonstrate the benefits of a convex geometric perspective for questions on chemical stoichiometry. We show that the balancing of chemical equations, the use of “mixtures” to explain multiple stoichiometry, and the half-reaction for balancing redox actions all yield nice convex geometric interpretations. We also relate some natural questions on reaction mechanisms with the enumeration of lat...
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The P/2eratio of noncyclic photophosphorylation was investigated in the light of recent reports that it is greater than one and may reflect the existence of two types of electron transport, a phosphorylating and a nonphosphorylating type, superimposed on each other. Our results, obtained under experimental conditions that included those reported to be conducive to high ratios, are consistent wi...
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Tom Andersen,* James J. Elser and Dag O. Hessen Department of Biology, University of Oslo, P.O. Box 1066, Blindern, 0316 Oslo, Norway School of Life Sciences, Arizona State University, Tempe, AZ 85287, USA *Correspondence: E-mail: [email protected] Abstract Population dynamics theory forms the quantitative core from which most ecologists have developed their intuition about how species in...
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Biddanda, B., M. Ogdahl, and J. Cotner. 2001. Dominance of bacterial metabolism in oligotrophic relative to eutrophic waters. Limnology and Oceanography 46:730–739. Brown, J. H., J. F. Gillooly, A. P. Allen, V. M. Savage, and G. B. West. 2004. Toward a metabolic theory of ecology. Ecology 85:1771–1789. Chen, X., and B.-L. Li. 2003. Testing the allometric scaling relationships with seedlings of ...
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ژورنال
عنوان ژورنال: Journal of Chemical Education
سال: 1954
ISSN: 0021-9584,1938-1328
DOI: 10.1021/ed031p612.2