The phrase "allowed half of" is correct and usable in written English.
It can be used when discussing permissions or entitlements regarding a portion of something, typically in a context where a limit is set.
Example: "The students were allowed half of the time to complete the exam."
Alternatives: "permitted a portion of" or "granted half of".
When Sara Mednick, a former Harvard researcher, gave her subjects a memory challenge, she allowed half of them to take a 60 to 90 minute nap.
So they gathered adult mice, injected them with a substance that marks newborn cells in the brain, and for six weeks, allowed half of them to run at will on little wheels, while the others sat quietly in their cages.
Researchers allowed half of the monkeys to eat as much as they wanted during the day, while restricting the other half to a diet with 30% fewer calories.
The CT program allowed half of the group to become CEs after training (20 out of 40 participants), compared with a little more than one-third for the other training program (11 out of 27 participants).
That allowed half of the fish to sire offspring from beyond the (watery) grave, the team reports online today in the Proceedings of the Royal Society B. The male has the female to thank for this supernatural ability.
We then divided females from all three treatments into two groups (n = 30 per treatment combination) and allowed half of the females to remate after 24 hr, while the other half had an opportunity to remate after 48 hr.
This information allows half of the degenerate solutions to be rejected.
Our subsequent banding algorithm allows half of these wavelengths to bypass all but 4R hub nodes.
Researchers from the University of Sao Paulo in Brazil began by allowing half of a group of healthy, adult rats to run at will on running wheels.
Conditions have become so bad that the Government is to launch its "avoid the office" strategy, forcing firms to allow half of their employees to work from home.
Barnett calls for eliminating the federal income tax; prohibiting the imposition of unfunded mandates on the states; and allowing half of the states (provided that they represent half of the national population) to rescind any federal law.
