delta

After seven days of using the Hinoki oil, participants showed increased delta wave activity around the time they were falling asleep.

From Science Daily ● Oct. 6, 2026

The following morning, bright and early to beat the heat, Olsi drove me the two hours from Tirana to the Vjosa Narta delta, which lies just north of the coastal city of Vlore.

From Slate ● Sep. 8, 2026

Gamma measures how quickly an option’s delta changes as the underlying index moves, while net dealer gamma estimates how market makers’ exposure to the contracts they have sold, or bought, may influence their hedging activity.

From MarketWatch ● Aug. 5, 2026

For decades, so much water has been taken that the river seldom meets the sea in Mexico, and its delta, once filled with lush wetlands and forests, has shriveled to stretches of dry riverbed.

From Los Angeles Times ● Jul. 21, 2026

There, just shy of the city, the Uzumark broadened into a delta and was sliced into ribbons by boulders and small islands before simply vanishing.

From "Strange the Dreamer" by Laini Taylor

Another 400 gigatonnes are stored in ocean sediments and river deltas.

From Science Daily ● Aug. 3, 2026

Among the most important contributors are heavy groundwater pumping, oil and gas extraction, the compression of relatively young sediments in river deltas, and the weight of expanding urban areas.

From Science Daily ● Aug. 3, 2026

The world-renowned site features iron carbonate concretions that formed some 309 million years ago, fossilizing within them ancient creatures that had once thrived in the area's lush swamps, shallow seas and river deltas.

From Barron's ● Jun. 18, 2026

That means they are also imperiling some of the world’s most important food-producing lowlands in the Nile and Mekong deltas and cities from Shanghai to New York.

From Salon ● Jul. 28, 2025

In fifth-grade history we had spent a lot of time worrying about the flooded river deltas of the ancient world.

From "Jacob Have I Loved" by Katherine Paterson