The dead dry horizon needs not to be continuous; its thickness varies and it can even be absent altogether.
It varies with temperature, chemical species, charge and vapour concentrations, and may even be absent when evaporation rates are highly suppressed, such as for sulfuric acid dimethylamine clusters10,37.
Since then, it was found that developmental genes could also display highly dissimilar expression patterns or even be absent in non-bilaterian lineages, showing that the genetic mechanisms underlying embryonic development are not universal.
Two or three months later, we noticed that Luna Blank had stopped coming to the classical-music group and had even been absent from several teachers' meetings.
As an example, circular RNA molecules derived from Sry gene are the main transcripts in embryonic brains on Days 11 19, whereas linear molecules become more ample in postnatal brains, wherein circRNAs can even be absent (Mayer et al., 2000).
Older catheters have a sutured pump-catheter connection and distinct differences in anchoring (this could even be absent), different catheter-catheter connection, different catheter ends, and the presence or absence of a mushroom-shaped titanium tip.
Nevertheless, although HMF occurs at very low concentrations and can even be absent in both fresh honey and food products, heat treatment and/or prolonged storage conditions can enhance further HMF production.
The hourglass pattern on the underside of the abdomen may also be less distinct, losing the middle section, and may even be absent.
Threshold values are sensitive to these changes and may even be absent.
Our results challenge the notion that all types of enrichment are immediately beneficial for captive animals and indicate that initial reactions to enrichment need not be positive or, in the case of some behaviors, may even be absent.
In tumour pathophysiology, opposing phenomena have been observed: the basement membrane can thicken, thin, or even be absent.
