Sentences with phrase «less active phase»

The sun has recently gone into a less active phase of fewer sun - spots, and the ocean decadal currents have changed from a warming to a cooling phase.

Not exact matches

The researchers defined active phase labor arrest as 1 cm or less of labor progress over 2 hours in women who entered labor spontaneously and were at least 4 cm dilated at the time arrest was diagnosed.

The arsenate - grown cells were analyzed in their resting phase, which requires less phosphate for survival than does active growth, notes Joyce, and cells grown in high concentrations of arsenate did not seem to contain any RNA — possibly because RNA production had shut down to conserve phosphate.

In the past, people had known that individual neurons go through phases of being more or less active, but with this probe they saw for the first time that all the neurons in a given column cycled together between firing very rapidly then firing at a much slower rate, similar to coordinated cycles in sleep.

Records from the 20th Century suggest that hurricane formation over the Atlantic has changed phase every few decades: the 1940s and 50s were active, the 70s and 80s less so, while the currently active phase appears to have commenced in 1995.

Although the phasing for event C is less clear because of the relatively small CO2 increase, our findings provide strong support for an active bipolar seesaw during MIS 18.

It is the fact that we just entered a 30 year cooling phase (even without the contribution of a less active sun) which demolishes Mora et al..

A more frequent positive phase is associated with a more active Sun due to cooling of the polar stratosphere (less mesospheric ozone descending through the polar vortex) and consequent lifting of the polar tropopause.

A more frequent or more pronounced negative phase (as observed to a record extent during the very low solar minimum between cycles 23 and 24) is associated with a less active Sun due to warming of the polar stratosphere (more mesospheric ozone descending through the polar vortex).

Thus solar activity has associated positive feedback when more active and negative feedback when less active, dramatically magnifying Earth's thermal response to changes in solar activity and explaining how fractions of Wm - 2 change in direct solar radiation translate to many Wm - 2 effect between positive and negative phases of relative solar activity.