Not any old variation will do.
It is known that GFP fluorescence has some weak points, such as the diminishing green fluorescence in older tissues, variation in fluorescence levels among different tissues, and interference with autofluorescence in plants (Hraska et al. 2006; Molinier et al. 2000).
Often inspired by visual artists, Feldman had antique carpets in mind in "Patterns in a Chromatic Field," an 80-minute work that reflects the subtle variations in old dyes with microtonal writing.
The challenge now will be to work out how to translate sequence information into chemical reality, and further, how to begin to access not just small variations in old chemistry, but completely new chemical scaffolds.
Table S5 Mean (SD) DNA methylation and longitudinal change in inter-individual variation in old MZ pairs.
Our data suggest that, when sampling element and location is kept consistent, ontogenetic variation in OLD appears negligible.
However, our analysis indicates that there is considerably more variation in OLD between elements of an individual than in different positions within a single element, or in the average OLD between different individuals.
In older adults, regional variations in survival have been reported for cancers diagnosed during 1971 1990, particularly in the earlier years (Coleman et al, 1999; Quinn et al, 2005).
Ultimately, admission patterns reflect underlying injury incidence rates and injury severity in older people, and variations in hospital utilisation for those injuries.
In older bees the variation of Tthorax increased considerably, especially during high cold stress (low Texp), reaching the maximum at about 7 days.
