This is a preview. Log in through your library . Abstract We have examined the issue whether axial rotation of an intracellular DNA segment several thousand base pairs in length is associated with a ...

Toric IOLs corrected preexisting corneal astigmatism and showed good overall long-term rotational stability after cataract surgery; however, significant IOL rotation was seen in eyes with relatively ...

The topic and arguments concerning mechanical vs. kinematic alignment of knee replacements can be confusing the first few times you read about it. This month I asked Stephen M. Howell, MD, to respond ...

Earth's axial precession is a gyroscopic wobble, analogous to a spinning top, causing its axis of rotation to trace a cone over time. The primary cause of Earth's precession is the gravitational ...

In a “normal” electrocardiogram (ECG), the transition of the QRS axis in the precordial leads occurs between leads V 3 and V 4 (i.e., there is a dominant S in V 3 and a dominant R in V 4).