barrier

They placed a fish into a tank already occupied by another fish, with the two separated by a fiberglass mesh barrier and an opaque cover.

From Science Daily ● Oct. 18, 2026

Ninety percent of those particles were small enough to qualify as nanoplastics, which are small enough to cross the blood-brain barrier and be absorbed into human cells.

From Los Angeles Times ● Oct. 17, 2026

Money is a major barrier to the success of the biodiversity goals and an expected source of tension at COP17.

From Barron's ● Oct. 12, 2026

In 2019 he became the first person to break the two-hour marathon barrier under special conditions in Vienna, clocking an unofficial time of one hour 59 minutes 40 seconds.

From BBC ● Oct. 11, 2026

Kunthi was different from the other women, quieter, more reserved, and for all that we tried to be at ease with her there was a barrier which we could not surmount.

From "Nectar in a Sieve" by Kamala Markandaya

The work involves throwing shrubs and clippings over the area in order to re-establish its natural habitat, which not only maintains the visual but also helps create barriers to runoff and debris flow, he said.

From Los Angeles Times ● Oct. 18, 2026

Beijing is targeting 40 key technologies in response to Western trade barriers.

From Barron's ● Oct. 16, 2026

These symbolic gestures don’t directly address the longstanding theological barriers, but there has been some progress over the past several years.

From The Wall Street Journal ● Oct. 15, 2026

"There is real opportunity in the sector to dismantle the barriers to research that charities, clinicians, and researchers have known about for decades," he said.

From BBC ● Oct. 14, 2026

For small isolated islands without strong barriers to internal communication, the entire island constituted the political unit—as in the case of Anuta, with its 160 people.

From "Guns, Germs, and Steel: The Fates of Human Societies" by Jared M. Diamond