While the late Pleistocene yield indicates accelerated erosion, it is still lower than modern sediment yields in many tectonically active or semiarid landscapes, and it may reflect deposition of highly erodible loess as well as effects of periglacial conditions.
Negative number indicates reduced activity and positive number indicates accelerated activity.
"We found a direct correlation in our study between poor fitness and brain volume decades later, which indicates accelerated brain aging," study author Nicole Spartano, of the Boston University School of Medicine, said in a release.
A Ka/Ks ratio <1 indicates functional constraint with purifying selection on the gene, and a Ka/Ks ratio >1 indicates accelerated evolution with positive selection.
In addition, metabolome analysis of energy synthesis pathways indicates accelerated glycolysis and possibly TCA cycle activity during seizure, presumably due to the depletion of ATP.
The tree in Fig. 8 also indicates accelerated evolution of the GPT2 gene family compared with the SCT1 gene family.
A Ka/Ks ratio <1 indicates functional constraint with purifying selection on a gene, and a Ka/Ks ratio >1 indicates accelerated evolution with positive selection and a Ka/Ks ratio = 1 indicates neutral selection.
Generally, a Ka/Ks < 1 indicates the functional constraint with negative or purifying selection of the genes, a Ka/Ks ratio of 1 means that the genes are drifting neutrally, and Ka/Ks > 1 indicates accelerated evolution with positive selection.
24 It may also indicate accelerated plaque growth.
This is based on the regional basin architecture, which indicates accelerating subsidence, rapid deepening of the basin, and significant thickening of the sedimentary succession towards the Tornquist Teisseyre Zone (TTZ), along the southwestern margin of the EEC, during the Silurian.
