A third did two biopsies but was unable to get usable DNA.
The production lasted four years, including eight months on location in the Arctic — but for the first six trips, the filmmakers were unable to get any usable footage of polar bear mothers and cubs, the animals most closely associated with the Arctic.
He said the bomb had been dropped on "a cave target, and that cave target should no longer be usable for anybody to get in or out of".
This means that the government likely hasn't found a usable panacea to getting around iPhone encryption, as there may be many cases where it decides using the tactic isn't worth the risk.
And increased competition from other groups, some that are not charities, has made it harder than ever to get usable donations.
The first is to recognize that winter squash is cheap, so if you have to hack off huge chunks and toss them to get usable flesh, that's not so horrible, and far better than cutting yourself trying to peel all the ridges, bumps and curves.
To get usable tissue during the first trimester of pregnancy, Mr. Bardsley encourages doctors to use ultrasound to find the fetus in the woman's uterus and then to use special suction abortion techniques, varying the amount of suction "to try to trap the embryo in the catheter," he said.
"It's the hardest thing to get usable data out of these repositories.
But it's a lot harder to get usable results with that approach: It's almost as hard as trying to get monkeys to tap out the plays of Shakespeare by randomly hitting keys.
But, as shown in the included scenario projects, it is possible to get usable conclusions with 'ordinary' persons acting as experts [ 29, 30, 65].
