3. Two of the authors (KM, CS) selected four observations for further analysis that included events observed by the observer and talked about by both students and patients.
This includes four observations that can be given with less than 24 hours' notice.
Starting next fall, a Tennessee law will require at least four observations a year, rather than one every five years.
He is required to do at least four observations a year for the 65 teachers at his school, although the changes suggested last week would save paperwork by allowing two of the observations to be done back to back.
The design was longitudinal with four observations.
From Fig. 3, four observations can be directly obtained.
In Fig. 2, there are two buses (v_1) and (v_2), three bus stops and four observations.
The total sample size is n=72, because four observations were lost.
The database includes weather observations from over 100 Norwegian synoptic stations with three to four observations a day.
One contribution is to recover the horizon line and metric rectification matrix from four observations of two shadow tips.
Conclusion: These four observations raise the possibility that high iron status may adversely influence the outcome of HIV-1 infection.
