This is probably due to the unavailability of enough sad/happy/angry examples with shorter durations.
Incidentally, the editors in ([9], pp. 444 445) give a simple example with short comments concerning the minimal polynomial, the Jordan canonical form of A and the multiple poles of F z).
Depending on how labor is compensated, the cost of sick time may be borne by the employer as reduced productivity, passed to the employee through reduced wages (as in the case of hourly-paid workers), or passed to an insurer (when absence is insured, for example with short-term disability).
For example, practices with short baseline waiting times showed little or no improvement by employing NPs.
Again, these projections are based on strong assumptions, as some parts of the tree will be more difficult to resolve than others (for example, those with short branches, incongruous gene trees, etc).
While there are many individual examples of genes with short first introns, the dominant trend appears to be that, on average, it is the first intron that is the longest intron in a gene.
For example, species with shorter generation times may have higher substitution rates because more rounds of DNA replication in germs cells produce more mutations per unit time [13], [14], [15].
For example, Cnidarians with short-lived medusa stages have faster mitochondrial mutation rates than cnidarians with long life spans and no medusa stages [ 6].
For example, species with shorter generation times tend to have faster mutation rates [ 23], presumably due to the accumulation of DNA replication errors [ 40].
You might introduce this example with a short video clip from WGBH: Toxic newts.
