Sentence examples for has been observed only from inspiring English sources

The phenomenon has been observed only when tape is unpeeled in a vacuum.

A spokeswoman for Boeing, Laurie Gunter, said that the lights were used on other planes and elsewhere on the MD-11, but that the damage has been observed only with the captain and first officer's map lights.

Disappointingly, however, the QHE has been observed only at liquid-helium temperatures.

This nuclear localization is the hallmark of a retro-differentiated phenotype, since it has been observed only in differentiating myoblasts.

This kind of cumulative culture, where generations build on the innovations of their forebears, has been observed only in humans.

PID has been observed only for the negative voltage stress in this p-type polycrystalline Si PV module.

Natural hybridization between pink salmon (Oncorhynchus gorbuscha) and Chinook salmon (O. tshawytscha) has been observed only in the Great Lakes, where both species have been introduced.

Although this effect has been observed only at low temperatures, these works gave rise to many new research projects focusing on the α ME optimization.

In the figure for 2010, a reference point is set south of the reference point for other figures, because subsidence has been observed only in the period.

Note also that in the majority of cases, the triggering has been observed only during the surface-wave train, with no continuation at later times.

We would like to mention here that it has been observed only for thicknesses below 4 nm because surface roughness effects become prominent for ultra thin films.