In conclusion, AQP1-expressing fibrillary astrocytes, which represent a unique subset of astrocytes, might have a close association with Aβ in the brains of advanced stages of AD, although there exists no definitive evidence to show the direct contact.
Although there have been several published reports of nucleocytoplasmic or cytoplasmic N-glycans, there exists no definitive structural evidence that N-glycans actually occur on cytoplasmic or nuclear proteins nor on the cytoplasmic portions of membrane proteins [ 1].
For example there exist no definitive values for modal split shares or CO2-emissions in the existing TMP documents, therefore an assessment against these target values is not possible, yet.
Although qualitative estimates of Oh absolute density as a function of altitude do exist, a definitive density profile shape has not yet been established.
Substantial limitations exist in definitive identification of the malignant potential of the pancreatic cystic neoplasms despite the many improvements in imaging techniques.
As there exist no definitive markers or absolute isolation methods for stem cells in lung cancer, we chose the well-characterized human mammary breast cancer cell lines (HMLE and HMLER) for further experimentation.
The challenges of diagnosis in patients with spinal pain, however, are that spinal pain is often multifactorial, the factors involved are wide ranging, and for most of these factors there exist no definitive objective tests.
There exist no definitive guidelines regarding recommended sample sizes for qualitative studies and available guidance actually states that the number of patients is not as critical as interview quality, with sample size depending on the completeness of information obtained from the analysis of interview transcripts [ 24].
The far western stretch of Bleecker Street in Manhattan now exists as near definitive proof that the carbohydrate lover -- an allegedly extinct species -- and the clotheshorse can exist in the same person.
Suppose that there exists a positive definitive matrix P such that (B=frac{1}{2}(PC+C^{T}P^{T}-PAL-L^{T}A^{T}P^{T}+PK+K^{T}P^{T})>0).
