The biologically active agents can be attached to the base polymer as surface active end groups.

Since Mars had both surface water and volcanic activity during this time, it would have also experienced hydrothermal activity.

These compounds are used as surface-active substances, non-ionic surfactants or emulsifiers.

There was no observed surface activity at the crater.

These events were most likely associated with increased surface activity.

The thermochromic composite respectively comprises at least one of the following constituents: a dye, a developer, a fluxing medium, a surfactant and a polymer.

A large number of their atoms is situated on their surface and they have therefore a high surface activity.

Fig. 7: Cayambe volcano seen from the west, no surface activity is observed.

No significant settlement has been observed in the area since Nov. 24.

No active flows in this area have occurred since November 22.

A large number of their atoms is situated on their surface and they have therefore a high surface activity.

This surface activity produces starspots , which are regions of strong magnetic fields and lower than normal surface temperatures.

The surfactant is novel and exhibits high surface activity and excellent emulsifying capability, even at a low concentration.

This surface activity produces starspots, which are regions of strong magnetic fields and lower than normal surface temperatures.

The first and second orientation films differ from each other in at least one of such characteristics as the film thickness, material, and surface activity.