Social insects discriminate readily between harmless group-members and dangerous strangers using easily accessible cuticular hydrocarbons as nestmate recognition cues.
Thus, several 1,4,7,10-tetrasubstituted tribenzotriquinacenes have become accessible bearing three hydrocarbon or heteroatomic groups in strictly eclipsed orientation with respect to the central substituent.
In the coming decades, ever-improving technologies will almost certainly make new sources of hydrocarbons accessible.
Secondly, secondary cracking reactions mainly take place in the micropores of zeolites when smaller hydrocarbon is accessible to strong acid sites in the cages of zeolites.
For residue cracking, the pore structure of catalyst matrix should be accessible for precracking the large hydrocarbon molecules so that the resulting smaller molecules can transfer into the zeolite channels and can be converted to value-added products over the zeolite sites.
These catalyst systems should be very accessible and effective in cracking large hydrocarbon molecules and should have the capability to handle contaminants such as metal-, sulfur-, and nitrogen-compounds.
Fuels of the furan family, i.e. furan itself, 2-methylfuran (MF), and 2,5-dimethylfuran (DMF) are being proposed as alternatives to hydrocarbon fuels and are potentially accessible from cellulosic biomass.
It would increase the responsibilities of Greenland's government in foreign affairs, immigration, and justice, among other areas, while also granting it the rights to the potentially lucrative hydrocarbon and mineral resources that have become increasingly accessible as a result of the island's melting ice cap.
Air-ozonolysis was revealed as an accessible and effective approach for surface activation and further functionalization of hydrocarbon polymers.
The phenomenon of receptor binding to accessible chromatin was shown to be true also for the aryl hydrocarbon receptor and to participate in cell-specific receptor binding.
