Science & Technology
Dr Raghavendra Rao worked with a team of researchers from the Anthropological Survey of India to sequence 966 complete mitochondrial DNA genomes from Indian 'relic populations'. He said, "Mitochondrial DNA is inherited only from the mother and so allows us to accurately trace ancestry. We found certain mutations in the DNA sequences of the Indian tribes we sampled that are specific to Australian Aborigines. This shared ancestry suggests that the Aborigine population migrated to Australia via the so-called 'Southern Route'".

Gourd and squash artifacts were recovered from the sunken pit and platform in the Fox Temple at the Buena Vista site in central Peru.
"Archaeological starch grain research allows us to gain a better understanding of how ancient humans used plants, the types of food they ate, and how that food was prepared," said Neil Duncan, doctoral student of anthropology in the MU College of Arts and Science and lead author of the study that was published in the Proceedings of the National Academy of Science (PNAS) this week. "This is the first study to analyze residue from bottle gourd or squash artifacts. Squash and bottle gourds had a variety of uses 4,000 years ago, including being used as dishes, net floats and symbolic containers. Residue analysis can help determine the specific use."
The excavations at the Politiko-Troullia site, near the capital Nicosia, unearthed a series of households around a communal courtyard, and proof of intensive animal husbandry and crop-processing, according to a statement today on the Web site of the Cypriot Interior Ministry's Public Information Office.
Light microscopy is an essential healthcare tool that can help to diagnose dangerous diseases including malaria and tuberculosis. If necessary, digital images of cell samples provided by camera-equipped lab microscopes are shuttled through the internet to experts at other healthcare centres for further analysis.
But these technologies are often unavailable to those in remote regions or the developing world - although life-threatening diseases are often endemic in these places, says Daniel Fletcher at the University of California in Berkeley.

A girl born with half of her cerebral cortex missing sees perfectly
"It was quite a surprise to see that something like this is possible," says Lars Muckli, a neuroscientist at the University of Glasgow, UK, who was part of the team that imaged the girl's brain.
Doctors discovered that she was missing the right half at the age of three, after she began suffering from seizures.

AltaRock Energy has a permit pending to fracture bedrock and extract energy at its drilling site near Anderson Springs, California.
The project by AltaRock Energy, a start-up company with offices in Seattle and Sausalito, Calif., had won a grant of $6.25 million from the Energy Department, and officials at the Interior Department had indicated that it was likely to issue permits allowing the company to fracture bedrock on federal land in one of the most seismically active areas of the world, Northern California.
But when contacted last month by the New York Times for an article on the project, several federal officials said that AltaRock had not disclosed that a similar project in Basel, Switzerland, was shut down when it generated earthquakes that shook the city in 2006 and 2007. AltaRock officials denied the accusation, saying they had been forthcoming about the results of the Basel project.
The new method could be a breakthrough for economists and statisticians, says Dr. Mehmet Caner, an associate professor of economics at NC State and co-author of the paper unveiling the new research. "This could lead to much great insight into the national and global economy by providing the impetus to develop new forecasting models for those variables that can be predicted," he says.
The research, published this week in the Proceedings of the National Academy of Sciences (PNAS), was led by James Kennett, professor emeritus at UC Santa Barbara, and Douglas J. Kennett, first author, of the University of Oregon. The two are a father-son team. They were joined by 15 other researchers.
The University of Washington has developed a way to make such information expire. After a set time period, electronic communications such as e-mail, Facebook posts and chat messages would automatically self-destruct, becoming irretrievable from all Web sites, inboxes, outboxes, backup sites and home computers. Not even the sender could retrieve them.







