As the stem cells are capable of becoming other types of cells there is also concern that they may pose a cancer risk.
They took a sample of human skin cells and converted it into stem cells, which are capable of becoming any other type of cell in the body.
They used stem cells from a human embryo, which are capable of becoming any other type of cell in the human body from nerve to skin, muscle to kidney.
Signs that the Muslims of Leicester South are becoming as fickle as other voters may mean they are becoming more middle-class.
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After six years in nursing, unsatisfied with the career choice I had made, I woke up to a different kind of fear: The fear of becoming like the other no-risk nurses tired, burned out and old before their time.
Engaging with the messy complexity of cybersecurity challenges is essential to ensuring that war remains a continuation of politics by other means instead of politics (and every other aspect of daily life) becoming a continuation of war by other means.
And if so, is it human or machine that is becoming more like the other?
The biggest question Republicans seem to have for former Massachusetts Governor Mitt Romney is whether he believes in anything other than becoming president.
Every year, more and more are becoming totally dependent on other family members, on social benefits or health insurance payouts - or on charity.
And even becoming a portal for other on-line retalers by routing customers to their sites, and even taking orders for products shipped from other e-tailers.
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It seems that western culture, specifically in the United States, is incredibly focused on the process of becoming someone and something other than we are now.
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You do not have to be totally soft in the heart and head to regret such unique places becoming more like each other and more like everywhere else.
What is most gloomily clear is that if Messrs Maliki and Allawi remain set on preventing each other from becoming prime minister, Iraq could slip back into sectarian division and violence.
In a country where religious and ethnic animosity is still fresh in everyone's minds, Croat and Bosnian workers are working side-by-side in a relatively relaxed atmosphere, and becoming reacquainted with each other.
As Africa is slowly becoming a desert, all the other cold parts of the world like Russia, Scandinavia, Alaska, Greenland and Antarctica are becoming warmer and will become friendlier places to live in and there will be more vegetation.
Those are two example of how the mobile operating systems are becoming platforms that connect with other devices.
Venables on the other hand was becoming increasingly agitated in the police interviews.
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As their individual temperatures scale up and down, they form a trinity, each becoming an aspect of the other's identity.
New York is hoping to go from spending more money on Medicaid than any other state to becoming a model of efficiency for the nation.
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But the small but growing company -- Pettis said he's looking to hire 50 people -- is already becoming a role model for other startups.
Name-matching software is also becoming more sophisticated and performing other functions.
Along the way to becoming a neurosurgeon he faced other obstacles, including the belief that perhaps a young man born in Mexico could not possess the intelligence or ability to serve patients in such a demanding field of medicine.
Chicken Littles in those days argued that the earth was becoming overpopulated, that we were running out of food, oil and other natural resources, that we were becoming more polluted.
What actually takes place from birth to becoming a toddler, communicating with other toddlers and adults?
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The arts community points to other structural hurdles to becoming a regional beacon for cultural activity.
And the naming systems of Facebook and other social networks are becoming more important.
These moths must rely on some other way of not becoming a bat's lunch.
They are, in short, becoming more like institutional investors in other parts of the world.
We wound up becoming fans and supporters for each other through the peaks and valleys in our careers.
Mr Uribe wants closer links with Central America, whose countries are becoming more closely integrated with each other.
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