The weak plot, as Bizet's biographer Winton Dean observes, turns on the unlikely coincidence regarding Leila's necklace, and no real effort is made in the text to bring any of the characters to life: "They are the regulation sopranos, tenors, etc., with their faces blacked".
They observed turned-on gene sets, including enzymes that affect how cells grow and divide, and inflammatory regulators, among many examples.
While members of the Orthodox congregation observed the Sabbath, he turned on the lights, adjusted the heat or rounded up the 10 people needed to make up a minyan.
When the first circuit was turned on, Faraday observed a momentary deflection of the compass needle and its immediate return to its original position.
They attracted bats with live conspecific distress calls, and observed that when lights were turned on, significantly more collisions occurred.
An automobile or plane is placed inside, the wind tunnel is turned on, and researchers observe how the wind flows around the object, writing equations to describe what they see.
After the turbo pump was turned on, significant change in the current was observed.
They also found the racial disparity was larger during the day than at night, when the officer can easily observe their race before turning on the sirens.
Dianne Nicol, a professor of law at the University of Tasmania, observes that "this case turns on whether an isolated gene sequence has markedly different characteristics from a gene that occurs in the human body.
"Because of the lack of scientific certainty," one commentator has observed, "the debate over depression turns on questions of language.
The fluorescence signal "turning on" was observed when AB was bound to Ade, which is attributed to a significant conformational change in AB from a FDNA/QDNA duplex to a FDNA-Ade complex.
