Although the body showed substantial twisting during these turns (fig 4), the head kept it's orientation in space, suggesting that the bird kept its gaze constant between turns.
The group velocity mismatch between polarisation components introduced by twist is mitigated by the interplay between anomalous dispersion and the nonlinear Kerr effect, although strong twist should be avoided as it still introduces substantial pulse distortion.
Extensive molecular dynamics simulations show that the twisting and untwisting motions of tropomyosin vary appreciably along tropomyosin length, and in particular that substantial terminal domain winding and unwinding occurs whether tropomyosin is bound to F-actin or not.
As further revealed by Figure 2b, d, the SWNT fiber upon twisting became much denser and possessed substantial alignment of the nanotubes along the twisting direction.
Amyloid fibrils are long, helically symmetric protein aggregates that can display substantial variation (polymorphism), including alterations in twist and structure at the β-strand and protofilament levels, even when grown under the same experimental conditions.
Reconstructions of the apo, ATP, and ADP states identify that Rvb1/2 undergoes substantial conformational changes that include a twist in the insertion-domain position and a corresponding rotation of the AAA+ ring.
But, unless the pipe legs can be guaranteed to be separated and not twisted and contacting over a substantial length of the bore, this 30%% benefit may never be realized in practice.
What sets out to be an expansive mini-epic, crossing continents, cultures and narrative forms, manages to keep its many twists and turns intact against the substantial weight of myriad structural pressures.
In general, the loop legs are not constrained within the bore cross section, and during installation, the legs can twist and contact one another over a substantial portion of the bore length, thereby degrading performance.
