proceedings of the national academy of sciences

Babies can hear syllables as early as three months before birth

A French research team has found that babies can decipher speech as early as three months before birth

A French research team has found that babies can decipher speech as early as three months before birth. The evidence comes from detailed brain scans of 12 infants born prematurely. At just 28 weeks’ gestation, the babies appeared to discriminate between different syllables like “ga” and “ba” as well as male and female voices. Writing [...]

Poor sleep has a dramatic effect on internal workings of human body

British researchers have found that a run of poor sleep can have a dramatic effect on the internal workings of the human body

British researchers have found that a run of poor sleep can have a dramatic effect on the internal workings of the human body. The activity of hundreds of genes was altered when people’s sleep was cut to less than six hours a day for a week. Writing in the journal Proceedings of the National Academy [...]

Cannabis smokers at risk of significant and irreversible reduction in their IQ

A new research found that young people who smoke cannabis run the risk of a significant and irreversible reduction in their IQ

A new research found that young people who smoke cannabis run the risk of a significant and irreversible reduction in their IQ. The findings come from a study of around 1,000 people in New Zealand. An international team found those who started using cannabis below the age of 18 – while their brains were still [...]

Bluefin tuna at record radioactive contamination from Fukushima nuclear accident

A record radioactive contamination from last year's Fukushima nuclear accident has been detected in Pacific Bluefin tuna caught off the coast of California

A record radioactive contamination from last year’s Fukushima nuclear accident has been detected in Pacific Bluefin tuna caught off the coast of California. Bluefin tuna would have picked up the pollution while swimming in Japanese waters, before then moving to the far side of the ocean. Scientists stress that the fish are still perfectly safe [...]

Rewritable DNA used as memory storage within biological systems

US researchers from Stanford University have demonstrated a means to use short sections of DNA as rewritable data "bits" in living cells

US researchers from Stanford University have demonstrated a means to use short sections of DNA as rewritable data “bits” in living cells. The technique uses two proteins adapted from viruses to “flip” the DNA bits. Though it is at an early stage, the advance could help pave the way for computing and memory storage within [...]

Learning a second language can boost brain power

Speaking two languages profoundly affects the brain and changes how the nervous system responds to sound, lab tests revealed

Researchers from Northwestern University, US, say bilingualism is a form of brain training – a mental “work out” that fine-tunes the mind. Speaking two languages profoundly affects the brain and changes how the nervous system responds to sound, lab tests revealed. Experts say the work in Proceedings of the National Academy of Sciences provides “biological” [...]

Traces of ancient viruses thrive in human DNA

The human genome is marked by a history of exposure to infection

Researchers have found that traces of ancient viruses which infected our ancestors millions of years ago are more widespread in us than previously thought. A study shows how extensively viruses from as far back as the dinosaur era still thrive in our genetic material. It sheds light on the origins of a big proportion of [...]

About 9,000 Syrian ancient sites discovered using satellite images

About 9,000 of possible new ancient sites have been discovered by archaeologists using computers to scour satellite images

About 9,000 of possible new ancient sites have been discovered by archaeologists using computers to scour satellite images. Jason Ur said he had found about the potential early human settlements in north-eastern Syria. Computers scanned the images for soil discoloration and mounds caused when mud-brick settlements collapsed. Dr. Jason Ur said surveying the same area [...]

Russia: ancient plants brought to life after 30,000 frozen years

Russian scientists have grown plants from fruit stored away in permafrost by squirrels over 30,000 years ago

Russian scientists have grown plants from fruit stored away in permafrost by squirrels over 30,000 years ago. The fruit was found in the banks of the Kolmya River in Siberia, a top site for people looking for mammoth bones. The Institute of Cell Biophysics team raised plants of Silene stenophylla – of the campion family [...]

Huge Burmese python caught in Everglades before it could lay 59 baby snakes eggs

A huge Burmese python was caught by rangers in Everglades, Florida, before it could lay eggs containing the 59 super-predators inside her

A huge Burmese python was caught by rangers in Everglades, Florida, before it could lay eggs containing the 59 super-predators inside her. The image was taken in 2009 but the problem is a very pressing one in 2012. Nothing and no one is safe when these marauding foreign invaders emerge from the fetid swamp that [...]

Skin cells converted into brain components at Stanford University

Researchers studying mice at the Stanford University School of Medicine in California have converted skin cells directly into cells which develop into the main components of the brain. The experiment, which was reported in Proceedings of the National Academy of Sciences, skipped the middle “stem cell” stage in the process. The researchers said they were [...]

Negative social interactions are linked to cancer, heart disease and high blood pressure

Scientists at UCLA's school of medicine have found that negative social interactions can lead to increased inflammation, which may in turn cause a host of illnesses from cancer to heart disease and high blood pressure

According to experts, relationships may be as vital to good health as a balanced diet and plenty of rest. Scientists at UCLA’s school of medicine have found that negative social interactions can lead to increased inflammation, which may in turn cause a host of illnesses from cancer to heart disease and high blood pressure. The [...]

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