AD FS 2.0 is a downloadable Windows Server 2008 update that is the successor to AD FS 1.0, which was first delivered in Windows Server 2003 R2, and AD FS 1.1, which was made available as a server role in Windows Server 2008 and Windows Server 2008 R2.
Baseline FHR Variability. Baseline variability is defined as fluctuations in the fetal heart rate of more than 2 cycles per minute. No distinction is made between short-term variability (or beat-to-beat variability or R-R wave period differences in the electrocardiogram) and long-term variability.
Beat-to-beat or short-term variability is the oscillation of the FHR around the baseline in amplitude of 5 to 10 bpm. Long-term variability is a somewhat slower oscillation in heart rate and has a frequency of three to 10 cycles per minute and an amplitude of 10 to 25 bpm.Clinically, loss of beat-to-beat variability is more significant than loss of long-term variability and may be ominous.Small square = 10 seconds; large square = one minute). Interpretation of the FHR variability from an external tracing appears to be more reliable when a second-generation fetal monitor is used than when a first-generation monitor is used.