Dr John Moore-Gillan, of the British Thoracic Society, told BBC News Online the new test was a potential step forward.
Unlike the plutonium-based 2006 and 2009 tests, a uranium-based test would be a step forward in the sophistication of the North's nuclear capabilities.
BBC: Analysis: What is driving North Korea's nuclear test plan?
Rebecca Wood, chief executive of the Alzheimer's Research Trust, which funded the research, said the new test was a big step forward in efforts to spot the early signs of dementia, as two-thirds of the 700, 000 people in the UK with dementia remain undiagnosed.
The team's next step is to test whether boosted autophagy can indeed explain the life-extending effects of exercise.
Step inside and test it out - you'll really notice the difference if visiting on a balmy day.
Saturday's test flight is the latest step to resuming commercial flights.
The next step is to test the new formulation in human volunteers, which will be done in India by the firm's commercial partner, Panacea Biotec, based in Delhi.
That test is seen as another step toward North Korea's goal of building a bomb small enough to be mounted on a missile that can hit the United States.
Assuming all goes well, the next step will be to test the system in space.
Saturday's test will therefore take the sensible step of starting at 12, 200 metres.
Monday's test may have been the next step about which analysts were concerned.
Indeed, the test proves China has taken another step in its quest to become a military power in space.
You can have a big vision for what you might do, but you need to break it down into a step you can actually test in the market.
Following a decade of dry test wells, the bids represent a step forward for the country, even if it only manages to produce enough product to ease their own domestic demand.
According to Gruber, that's just one step below "design verification test, " which is what that stolen iPhone 4 prototype was -- meaning the CDMA iPhone is apparently just two hops away from production.
ENGADGET: CDMA iPhone in engineering tests, may arrive in January, says John Gruber
However, he was quick to end speculation that he is looking to quit Tests to concentrate on limited-overs cricket after quotes attributed to him before the Test series suggested he was ready to step down.
"It may not be appropriate to use calculators for the whole of the maths test paper, but it is a retrograde step to ban them completely as it will diminish the skills set for primary pupils and leave them floundering in secondary school".
They are sure to put to the test Blair's success at keeping Labour in step during the campaign.
CNN: Blair faces great expectations -- from both sides - 1997 UK Elections
The next step for the research team is to test the process to see if it holds up under real world conditions.
Many Western diplomats and nuclear experts believe the Parchin site has been secretly used to test high-explosive nuclear triggers, an essential step toward achieving a weapons capability.
While outside scientists are still trying to determine specifics, the North's rocket test in December and third atomic bomb test last month may have pushed the country a step closer to acquiring the ability to hit the U.S. with weapons of mass destruction.
Insurers increasingly are requiring home tests as a first step before paying for an in-lab test.
It was one of these citizen groups that detected a spike in radiation in the "Meiji Step" powder that prompted the company to test the product.
"It's a step in the right direction, but the bigger test will be the longer-dated auctions further down the road, " said Nick Stamenkovic, bond strategist at RIA Capital Markets in Edinburgh.
Meanwhile, Pakistan's Asad Rauf has had to step down as an umpire for the scheduled first Test as he could not get the proper visa, according to the International Cricket Council.
By mid-summer he had taken on the Test captaincy too, following Nasser Hussain's decision to step down, and after securing a 2-2 draw with the combative South Africans, led England to six successive series victories, culminating in the epic 2005 Ashes triumph.
The first step was what the outside world believes was a missile test, though North Korea said the April 5 event was the launch of a communications satellite.
Ganguly revealed he was asked to step down as captain prior to last week's first Test, in which he scored 101.
Stepping on a chair that wobbled under him, he would knot a noose round his scrawny neck, test it, yank it, gyrate his neck like a pigeon and step out into the void.
Going a step better, Millennium and Becton, Dickinson will soon introduce a test to predict which cases of melanoma, a nasty form of skin cancer, will metastasize.
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