5 The Model Law rejects such straitjacketed thinking, and in being backward compatible, it follows the approach of the World Health Organization's (WHO) legal advisors, who recommended using preexisting legal features "as defined in national legislation".
The wave of particulate material advances from right to left a few micrometers above the preexisting autofluorescent features in the interface, flowing over and covering the capillary structures (Video S5).
Since some ruptures are recognized as known active faults from their geologic features, these are certainly preexisting geologically weak surfaces that moved co-seismically and/or post-seismically.
Genetic mutation is the ultimate source of novelty in biological evolution but again, the vast majority of mutations modify the nature of preexisting structures rather than produce utterly new features.
The company is also offering automatic import of preexisting search keywords and a novel feature that automatically matches your Promoted Tweets to trending hashtags.
Non-prevalence of BAd3 in humans and its ability to evade preexisting HAd immunity are some of the features that make BAd3 a promising vector for human gene delivery.
In contrast, the canonical description of de novo centriole formation encompasses two key features: (1) it occurs in the absence of preexisting centrioles and (2) the process is slower than normal centriole duplication.
At saturation, new features can therefore only become fixed if they replace preexisting ones or following a gene duplication event.
The diagnostic workup should include systematic analysis of the underlying condition, severity and duration of neutropenia, underlying immunosuppression, preexisting treatment and prophylaxis, clinical course of ARF, and clinical and radiological features (Grade 1+, strong agreement).
The fact that all eyes have evolved through the modification of prior form and the cooption of preexisting components also explains some otherwise puzzling structural complications (not to mention features that are downright maladaptive; see Novella 2008 for several examples).
