Alanine transaminase. Alanine transaminase (ALT) is a transaminase enzyme (EC 2.6.1.2). It is also called alanine aminotransferase (ALAT) and was formerly called serum glutamate-pyruvate transaminase (SGPT) or serum glutamic-pyruvic transaminase (SGPT) and was first characterized in the mid-1950s by Arthur Karmen and colleagues.
A top -level form is a modeless form that runs without a parent form. It can appear in front of or behind other Windows applications, including Visual FoxPro. Each instance of a top -level form will appear on the Windows taskbar and can contain child frames as well. The VFP Debugger application is an example of an SDI Form.
The best ones are all proprietary or confusing (FSPF and IEEE 802.1aq). FSPF is OSPF over L2, and SPB is IS-IS over L2. There are enough people that don't understand OSPF or IS-IS over L3, so there'll be resistance to the complications over the dead-simple STP. It may not be good, but it's well known, and it's limitations are well understood.