Your morning “cup of Joe” may do more than deliver the jolt you need to get going — it may also help you stave off type 2 diabetes, a new study suggests. But, before you pour yourself a second cup know this: The study authors said their research was done with cell cultures and there’s no proof yet that coffee has any ability to keep type 2 diabetes at bay.
But nearly a millennium ago, a very different scenario played out just north of the modern-day city of Flagstaff in the Arizona desert. Here, the local Sinagua peoples survived the eruption of the powerful Sunset Crater volcano and adapted to a changed landscape to forge a more complex society and higher standard of living.
“They were much better evolved to deal with the volcano than we are,” said archaeologist Mark Elson of Desert Archaeology, a Tucson firm that helps preserve ancient sites. By studying how the Sinagua adapted, Elson thinks we could learn better ways to cope with such massive catastrophes as Hurricane Katrina and the Great Plains floods.
“Our science is solid and it proves unequivocally that the world is warming and that this warming is due to human activities,” World Meteorological Organization Deputy Secretary-General Jerry Lengoasa told reporters in Durban, where almost 200 nations are gathered for U.N. climate talks.
The WMO, part of the United Nations, said the warmest 13 years of average global temperatures have all occurred in the 15 years since 1997. That has contributed to extreme weather conditions that increase the intensity of droughts and heavy precipitation across the world, it said.
“Global temperatures in 2011 are currently the tenth highest on record and are higher than any previous year with a La Nina event, which has a relative cooling influence,” it said.
Ruvio and a colleague used 134 surveys of men and women in Israel, average age 23.5 years, to examine the influence of personality, attitudes and values on driving. The researchers also looked at the factors of risk attraction, impulsivity, driving as a hedonistic activity and perceptions about time pressures among another 298 people.
The study authors found that people who believe their car is a reflection of their self-identity are more likely to drive aggressively and disobey the rules of the road, and that people with compulsive tendencies are more likely to drive aggressively without regard for potential consequences.
Supernatural-phenomena skeptics provide scientific explanations and other alternative takes on strange occurrences.
The international team, from the University of Missouri, the University of Hong Kong, Academia Sinica in Taiwan and Imperial College London, discovered that the sugar chain known as the sialyl-lewis-x sequence (SLeX) is highly abundant on the surface of the human egg. After experimenting with a range of synthesised sugars in the laboratory they went on to show that SLeX specifically binds sperm to an egg, and tested their findings using the outer coats of unfertilised ‘non-living’ human eggs.
“This exciting research is providing the first insights into the molecular events occurring at the very beginning of human life. The details we’ve discovered here fill in a huge gap in our knowledge of fertility and we hope they will ultimately help many of those people who currently cannot conceive,” said Professor Anne Dell CBE FRS FMedSci from the Department of Life Sciences at Imperial College London, who led the team that discovered the SLeX sugars on the egg surface.
“Unravelling the composition of the sugar coat that shrouds the human egg is the culmination of many years of painstaking research by my mass spectrometry colleagues at Imperial. This endeavour was an enormously difficult task because human eggs are very tiny - about the size of a full stop - so we didn’t have much material to work with.”
In the case of the North American black widow, Latrodectus hesperus, the Arizona experiments reveal that male black widows can detect telltale chemical signals on the webs of females. They can smell which females are well-fed and which are hungry, which leads to a simple choice: Which one is less likely to eat them?
Researchers assigned 4 year olds to watch Spongebob or the slower-paced educational cartoon Caillou for nine minutes, or to draw freely with markers. Immediately after, the kids took mental function tests to see how well they solved problems, followed rules, and remembered what they were told, for example. SpongeBob viewers performed significantly worse than their peers, according to findings published today in Pediatrics. Only 15 percent passed the problem-solving task, for example, compared with 35 percent of Caillou viewers and 70 percent of those who spent time drawing. Fast-paced shows revolving around unrealistic events are likely detrimental because they overstimulate the brain, making it harder to maintain focus, plan, organize, and control inappropriate behaviors, the researchers speculate.
NASA’s Last Space Shuttle Atlantis Blasts Into History
Before taking flight, Commander Christopher Ferguson saluted all those who contributed over the years to the shuttle program. “The shuttle is always going to be a reflection of what a great nation can do when it dares to be bold and commits to follow through,” he said. “We’re not ending the journey today … we’re completing a chapter of a journey that will never end.”
(Source: nasa.gov)
“Our findings suggest that parents should not be overly concerned that late-talking at age 2 years will result in enduring language and psychological difficulties for the child. There is good evidence that most late-talking children will catch up to the language skills of other children,” said Whitehouse. “The best thing that parents can do is provide a rich language-learning environment for their children,” he added. “This means getting down on the floor and playing with their child, talking with them, reading to them, interacting with them at their level.”
Completing the genome sequence of the endangered Tasmanian devil may help save it
The Tasmanian devil is known for its powerful jaws, frightening screeches and foul temper. Lately, though, it has earned a more dubious claim to fame: A strange and devastating disease is ravaging its population, pushing the world’s largest meat-eating marsupials to the edge of extinction.
Now, an international team of scientists has sequenced the Tasmanian devil genome. The results of their study appear this week in the Proceedings of the National Academy of Sciences.