To evaluate the effect of caffeine compared with theophylline treatment on the risk of apnea and use of mechanical ventilation in preterm infants with recurrent apnea. Subgroup analyses: 1  Outcomes of different doses of caffeine or theophylline. 2  Outcomes of infants born at different gestational ages or birth weights.here is some evidence that caffeine is as effective as theophylline in the short-term for reducing apnea in premature babies, is better tolerated and is easier to give. Apnea is a pause in breathing of greater than 20 seconds.
If the equator is projected outward to the celestial sphere, forming the celestial equator, it crosses the ecliptic at two points known as the equinoxes. The Sun, in its apparent motion along the ecliptic, crosses the celestial equator at these points, one from south to north, the other from north to south.
The beginning point for measuring latitude lines is the Equator. It is located at zero degrees and marks the dividing point between the north and south hemispheres. The zero-degree longitude line runs through Greenwich, England and is called the prime meridian. The prime meridian and the equator intersect in the South Atlantic Ocean. Why is the equator important? The equator is the point where we divide the north and south hemispheres.