When carbon substitutes boron sites of the MgB2 structure, shrinkage of the a-axis parameter occurs (Kazakov et al. 2005; Kortus et al. 2005).
Of interest, bisphosphonates, pyrophosphate analogs in which the oxygen bridge between the two phosphorus atoms has been replaced by a carbon substituted with different side chains, are able to inhibit the growth of T. cruzi.
Still, h-BN and graphite are very close neighbors and even the BC6N hybrids have been synthesized where carbon substitutes for some B and N atoms.
5-Methyl-THF is an important one carbon substituted folate and participates in amino acid and purine metabolism.
While the world looks on with dismay at events in Japan, some lobbyists are pressing ministers to adopt gas with carbon capture and storage as a low-carbon substitute for nuclear.
A carbon tax encourages consumers to realise the easy carbon gains available from switching to good low-carbon substitutes wherever they exist.
The measurement of folate is complicated because biological (vitamin) activity is associated with many folate forms that vary by oxidation state of the pterin ring, one-carbon substitutes, and glutamate chain length.
The results may provide information for estimating the potential of utilizing baobab fruit shell in the production of activated carbon to substitute commercial AC.
The shoulder at 287.0 and the maximum at 289.0 eV are attributed to C O and C=O bonds, where carbon can substitute lattice Ti atoms forming a Ti O C structure [51].
Western Europe has managed to reduce emissions by 5 percent by adopting a cap-and-trade system that effectively puts a price on carbon emissions; substituting natural gas for coal; and, in Germany's case, greatly expanding the use of renewable energy sources like solar power.
Such Open Carbon Frameworks, substituted and functionalized at the fragments' edge may theoretically adsorb, at ambient temperature and relatively low pressure (60 100 bar), the amount of hydrogen necessary for mobile applications.
