Instability Line with Thunderstorm

A severe thunderstorm climatology for Australia and associated thunderstorm environments

LINE Drive Retrotransposition and Genome Instability

The LINE-1 (L1) retrotransposon, the most important human mobile element, shapes the genome in many ways. Now two groups provide evidence that L1 retrotransposition is associated with large genomic deletions and inversions in transformed cells. If these events occur at a similar frequency in vivo, they have had a substantial effect on human genome evolution.

Taming contact line instability for pattern formation

Coating surfaces with different fluids is prone to instability producing inhomogeneous films and patterns. The contact line between the coating fluid and the surface to be coated is host to different instabilities, limiting the use of a variety of coating techniques. Here we take advantage of the instability of a receding contact line towards cusp and droplet formation to produce linear pattern...

Transient Amplification and Contact Line Instability

Instability in spreading thin liquid films arises from the influence of a driving force and results in the distortion of the leading edge of the film (the contact line). We study this instability in thin films placed on a horizontal substrate and driven by an induced surface tension gradient. We achieve controlled evolution of the contact line distortion by imposing optical perturbations behind...

Tunnels for Simulation of Straight - Line , Thunderstorm - and Tornado - Like Winds by

Researchers at Iowa State University (ISU) are developing next generation wind tunnels for studying primarily wind effects on structures. The Wind Simulation and Testing Laboratory in the Department of Aerospace Engineering and Engineering Mechanics will house facilities that simulate straight-line, thunderstormand tornado-like winds. This paper describes the motivation for advancing the state ...