Second, bitcoin transactions take too long for confirmations to be useful in everyday transactions.
Mobile devices need to have enough digital storage to be useful to the user.
For some newcomers, though, it's hard to develop big enough networks to be useful.
These sorts of things are not so summer-centric and are always going to be useful.
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Carrots have been shown in studies to be useful in the fight against cancer.
If the shares are to be useful, at the very least there must be pricing coherence.
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But, it turns out, a solar sail need not always be particularly large to be useful.
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Laser emission is far more efficient, and thus more likely to be useful in integrated circuits.
The question is, for whom or for what, in the long run, does he want to be useful?
Given a stick too short to be useful, and a stone of the right size, they chose the stone.
It has to be user-driven and it has to be useful and relevant.
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Is there any reason to decline to pursue any investigation that would seem to be useful to our patients?
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Existing ways of extracting this oxygen, however, are too slow to be useful.
More information ought to be useful, but only if companies can interpret it.
As far as I can tell, for advice to be useful at all, it needs to be preceded by compassion.
This means they last long enough to be useful, but do not hang around so long that they cause problems.
As a result, the skills you learn at a startup are much more likely to be useful in the future.
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Most laws also require that the patient should be terminally ill: yet this definition is almost too broad to be useful.
But many of his members now ironically find the new law actually turns out to be useful for making work practices more flexible.
Aside from the fact that the sample size is far too small to be useful, Dr Wakefield's hypothesis has other problems.
Building and implementing a curriculum takes far too long to be useful.
It has also been alleged that he collected information likely to be useful to a person committing or preparing an act of terrorism.
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The U.S. Patent Office should only be able to issue patents on things that require some level of human manipulation to be useful, Ravicher says.
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For it to be useful for broadband services, the amount of spectrum is important, but so is how much of it is in contiguous blocks.
Do you want to be useful in a variety of ways?
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"Stock markets, insurance markets, commodity markets--they used to be prohibited by gambling laws but were thought to be useful and given an exception, " says Hanson.
They, too, wanted to be useful, and said they'd respond shortly.
He said he was satisfied the trial would be carried out to good scientific standards, but added that "it doesn't mean it's going to be useful".
For now, the question of whether the same technique will work on eventual retail versions remains unanswered, as well as what it's actually going to be useful for.
Conservationists hope that this system will let them gather data on animal behavior that could prove to be useful for academic purposes as well as boosting tourism activities.
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