After decades of controversy about water rights, costs, migratory fish, and environmental impacts, removal or modification of remaining middle-reach dams as well as a partly finished dam on Elk Creek, a major tributary of the Rogue, began in 2008.
Also in 1837, the half dime's obverse design changed from one by William Kneass depicting a bust of Liberty to one featuring a seated Liberty by Christian Gobrecht; the half dime would bear modifications of this design until its abolition in 1873.
Apparently trivial details were examined in relation to natural selection to demonstrate how slight variations in similar structures of closely related flowers led to specialised modifications that provided various pollinators (insects) with different ways to cross-fertilise.
Beginning in 1837, an adaptation of the obverse of the Gobrecht dollar, depicting a seated Liberty, was used on the smaller silver coins (from half dime to half dollar), with Gobrecht's modification of Reich's heraldic eagle on the reverse of the quarter and half dollar.
Discoveries in biotechnology now allow the modification of entire genomes, advancing evolutionary studies to the level where future experiments may involve the creation of entirely synthetic organisms.
Examples of such modifications are the adherence to simplified routines, the placing of safety locks, the labelling of household items to cue the person with the disease or the use of modified daily life objects.
Members of the Commission persuaded Woolley that so much should not be entrusted to a single artist, and MacNeil was allowed to design both sides of the quarter, subject to his making modifications to his submission.
Partially because of the Crewkerne incident, and due to the incessant modification of Bulleid’s original design, British Railways took the decision to rebuild the entire class to a more conventional design by R.
Related functions such as histone modification may have already been present in the ancestor of modern eukaryotes, although other functions such as regulation of development by miRNA are thought to have evolved later.
Some operators have adopted a simpler modification known as the Enhanced Interior, featuring curved ceiling panels and indirect lighting with minimal modification of cabin architecture, as well as aftermarket modifications such as the NuLook 767 package by Heath Tecna.