Kata Kolok, literally meaning 'deaf talk' in Indonesian, is a unique sign language that's the primary means of communication for just 44 people on the entire planet.
As a consequence, the derivatives of the concentration variables have a unique sign pattern: for all x, y ∈ D, it holds that sign(F i (x)) = sign(F i (y)) ⊆ {−1, 0, 1}, where sign(A) ≜ {sign(a)∣ a∈ A} denotes the signs of the elements in A (Batt et al., 2008).
"The dark, scar-like sign under the right eye seems to be a unique mark of this individual," he said.
By cross-referencing the animals' genomes, the researchers were able to focus on seventy giraffe genes that show unique signs of adaptation.
Kata kolok, known as "the talk of the deaf," is a unique, rural sign language, independent of international or Indonesian sign language.
And the whole Repair Shop team comes together to save a weathered piece of Dorset history - a unique village sign, made up of metal, wood and ceramic parts all originally created by craftspeople who lived in the village.
While navigating the indignities, corruption and everyday violence from both guards and fellow inmates, he becomes immersed in the system of Woodpeckers, the unique sign language the male prisoners use to communicate with women in the adjacent penitentiary just over 400 feet away.
Was the price unique, or a sign of things to come?
An extraordinary whip-round, that would be tens of thousands of dollars today. Cork-based artist Alex Pentek told the BBC that the 6m tall feathers, all unique "as a sign of respect" signify the feathers used in Choctaw ceremonies.
