It is hypothesized that female-male mounting is an adaptive behaviour, functioning to prompt sluggish males to mount females in return. This hypothesis has been proposed many times and independently by different authors, however it had yet to be tested. Furthermore, the proximate mechanisms that drive the behaviour, specifically the male and female movements and actions that prompt its occurren...

This protocol describes the mounting of cells which have been grown on cleaned coverslips in cell culture dishes containing the appropriate medium and supplements. Labeling is performed with the coverslips placed in culture dishes. After cells are labeled, the coverslips can be mounted onto microscope slides to be viewed for short-term observation of live cells or longer-term observation of fix...

The nerve growth cone binds to a complex array of guidance cues in its local environment that influence cytoskeletal interactions to control the direction of subsequent axon outgrowth. How this occurs is a critical question and must certainly involve signal transduction pathways. The paper by Suter and Forscher (2001)(this issue) begins to address how one such pathway, an Src family tyrosine ki...

Compressors are a primary cause for numerous HV AC noise and vibration problems. Typically, vibration energy is transmitted from the compressor to the chassis through piping and isolation mounts. The design of these attachments is thus of paramount importance in determining the dynamic performance of a HV AC unit. Below certain frequencies, compressor vibration can be well described as a rigid-...