The proximity of the catalyst active sites and of the primary reaction intermediates originating from thermal depolymerization of lignin was shown to be crucial for product distribution.
Of the six NAAQS pollutants, O3 has been the most problematic pollutant to control because it is formed from intermediates originating from many different sources.
Interestingly, recent studies demonstrated that degradation intermediates originating from unspliced RNA species can be UV-cross-linked to Nrd1, Nab3 or Trf4 [ 82], suggesting that aberrant RNAs are also primed for decay via this pathway.
Intermediates can originate from the degradation of aromatic amino acids[39].
Similarly, CFS were found colocalizing with RAD51 and phospho-DNA-PKcs foci, although it was not known whether DSBs derived from intermediates originated to bypass the DNA secondary structures or as a consequence of checkpoint escape [ 56].
At phenol concentrations below 250 mg l−1, a benzoquinone intermediate, thought to originate from the degradation of 2,5-dimethylphenol, was isolated and identified.
In contrast, in the Sez6-driven EGFP BAC transgenic line, Sez6-driven EGFP expression was excluded from RELN-positive cells but was detected in both subplate cells and cortical plate neurons at E14.5 (Fig. 2 g, Supplemental Fig. 6 c ). Expression of this transgene was seen in axonal projections in the intermediate zone, which originate from the subplate.
A decay of anodic current immediately after the initial rise of the signal when the light is switched on is attributed to photogenerated electron transfer to the holes trapped at the surface states or the intermediates which originated from the reaction of holes at the semiconductor surface.
These other metabolites included [2-C]- and [3-C]-serine at 57.4 and 61.3 ppm, respectively, choline and/or creatine at 54.8 ppm, and a resonance at 45.8 ppm that may originate from intermediates in the formation of creatine and choline, guanidoacetate, or dimethylglycine.
The intermediate components believed to originate from tobacco alkaloids in mainstream cigarette smoke were determined using as gas-chromatography hyphenated to a mass spectrometer fitted with a mass selective detector (MSD) while the energetics of intermediates were conducted using the density functional theory framework (DFT/B3LYP) using the 6-31G baset set.
