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Medicine

Identical Twins Not Identical After All 159

Hugh Pickens writes "Contrary to previous beliefs, identical twins are not genetically identical. Researchers studied 19 pairs of monozygotic, or identical, twins and found differences in copy number variation in DNA which occurs when a set of coding letters in DNA are missing, or when extra copies of segments of DNA are produced. In most cases, variation in the number of copies likely has no impact on health or development but in others, it may be one factor in the likelihood of developing a disease (pdf). "Those differences may point the way to better understanding of genetic diseases when we study so-called discordant monozygotic twins....a pair of twins where one twin has a disorder and the other does not," says Carl Bruder, Ph.D. "If twin A develops Parkinson's and twin B does not, the region of their genome where they show differences is a target for further investigation to discover the basic genetic underpinnings of the disease.""
The Internet

Why Trolls and Flames Happen 331

AnonymousHack writes "New Scientist examines why people are in general more rude and abusive online. 'Psychologically, we are "distant" from the person we're talking to and less focused on our own identity. As a result we're more prone to aggressive behavior' says one psychologist, who also cites research showing messages received by email are always perceived more negatively than on the phone." Just more proof for the Greater Internet F***wad Theory.
The Almighty Buck

Study Finds Cost Major Factor In Outsourcing Positions 367

theodp writes "Debunking claims to the contrary, a new study from Duke University asserts that it is purely cost savings, and not the education of Indian and Chinese workers, or a shortage of American engineers that has caused offshore outsourcing. 'The key advantage of hiring Chinese entry-level engineers was cost savings, whereas a few respondents cited strong education or training and a willingness to work long hours. Similarly, cost savings were cited as a major advantage of hiring Indian entry-level engineers, whereas other advantages were technical knowledge, English language skills, strong education or training, ability to learn quickly, and a strong work ethic.' The article goes on to point out that despite this, outsourcing will continue to be a problem for US workers in coming decades; new elements of traditional corporations like R&D may in fact be next on the outsourcing chopping block."

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