Based on the increasing number of deep pyramidal cells in species which may represent stages of primate evolution from insectivores to humans and the concomitant dissolution of the compact, superficial cell rows, Stephan suggested a progressive "invasion" of the stratum oriens by pyramidal cells, which, in a hypothetical ancestor, were located in a compact cell layer.
Within a developmental psychopathology framework, these child and adolescent disorders may themselves represent staging posts towards further mental health difficulties in early adulthood.
Here we show that six species of Drosophila have Helena transposable elements at different stages of its evolution, and may represent different stages of the TE evolutionary cycle.
We also hypothesize that in our case, ischemic stroke and subsequent subarachnoid hemorrhage may represent different stages of the same process of atherosclerosis and inflammation in an aneurysmal wall confirmed by autopsy.
The statistical analysis of the size of the two ichnospecies found in the Cangahua Formation suggests that C. kitu and C. murguiai may represent two stages (closed and emerged balls, respectively) of a unique original morphology (C. kitu) and producer.
Transcriptome analyses showed distinct expression levels of several genes in the two cell subtypes [10] suggesting that the SP and the MP cells may represent different stages in the differentiation process.
Like the many calcium granules found in nature [51], the alternating electron dense and pervious layers found here can also be interpreted as representing intercalated layers of mineral and organic matrices, or alternatively, they may represent distinct stages of nucleation and growth.
These results suggest that human nCD4+, aCD4+ and aCD4− NKT cells may represent different stages of maturation and that there is wide disparity in the maturation state of the aCD4+ NKT cell pool, which can be phenotypically subdivided into CCR7highCD62LhighCD161low and CCR7lowCD62LlowCD161high populations.
Therefore, these three time points may represent different stages of rice root responses to K+ deficiency.
This indicates that they may represent different stages of adaptation to clonal reproduction [ 54].
