Need some help with terms

[slidewilly]

I've seen these on the board today and am green enough to need some help with definitions:

What is/are:

1. Middling/scalping? I understand what middling is, but what is scalping?

2. Reverses?

3. Open action reverses?

Thanks in advance for helping a newbie.

 

[PHREAK]

I believe there was a similar post on the newbies forum

 

[slidewilly]

Thanx, Phreak

Found it and reposted my other questions there, too.