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Origin of Mysterious Portuguese Mathematical and Geographical Tiles Revealed. The views expressed are those of the author and are not necessarily those of Scientific American.

Origin of Mysterious Portuguese Mathematical and Geographical Tiles Revealed

Bruce Lewenstein (Univ. de Cornell) e a Comunicação de Ciência (2) Bruce Lewenstein (Univ. de Cornell) e a Comunicação de Ciência (1) Untitled. Fundação Calouste Gulbenkian - Agenda. The Shorty Awards - Honoring the best of Twitter and social media. Why Smokers Are Skinny. Craving an afternoon snack?

Why Smokers Are Skinny

Take a drag on a cigarette, and your hunger will likely disappear. Smoking is the number one cause of preventable deaths in the Unites States and other developed countries, causing lung cancer, heart disease, and chronic bronchitis. Scientists Create Tiny Artificial Brain That Exhibits 12 Seconds of Short Term Memory. It's not artificial intelligence in the Turing test sense, but the technicolor ring you see above is actually an artificial microbrain, derived from rat brain cells--just 40 to 60 neurons in total--that is capable of about 12 seconds of short-term memory.

Scientists Create Tiny Artificial Brain That Exhibits 12 Seconds of Short Term Memory

Developed by a team at the University of Pittsburgh, the brain was created in an attempt to artificially nurture a working brain into existence so that researchers could study neural networks and how our brains transmit electrical signals and store data so efficiently. The did so by attaching a layer of proteins to a silicon disk and adding brain cells from embryonic rats that attached themselves to the proteins and grew to connect with one another in the ring seen above. ‘Lefties’ more gifted ‘a myth’ The study confirms that left-handed children will do worse than their right-handed siblings.

‘Lefties’ more gifted ‘a myth’

Jupiter steals Mars mass and populates asteroid belt - National Paelenotology Science News. A paper in the June 5, 2011, journal Nature presents a simulation that explains the small size of Mars relative to the Earth and Venus and the composition of the asteroid belt between Mars and Jupiter. According to the simulation, Jupiter moved toward Mars due to gravitational pull of a dense planet on a newly formed gaseous planet. When Jupiter solidified, it pulled mass away from Mars by the gravitational influence of Saturn when it formed.

Don't Believe Facebook; You Only Have 150 Friends. According to "Dunbar's Number," human beings can maintain a network of only about 150 close friends.

Don't Believe Facebook; You Only Have 150 Friends

Italian Seismologists Charged With Manslaughter for Not Predicting 2009 Quake - April 6, 2009: An aerial photo provided by the Italian Police shows the debris of a collapsed building in an area near L'Aquila, central Italy, after a powerful earthquake shook central Italy.AP Photo/Italian Police Italian government officials have accused the country's top seismologist of manslaughter, after failing to predict a natural disaster that struck Italy in 2009, a massive devastating earthquake that killed 308 people.

Italian Seismologists Charged With Manslaughter for Not Predicting 2009 Quake -

US scientists get glimpse of antihelium. They were gone as soon as they appeared, but for a fleeting moment they were the heaviest particles of antimatter a laboratory has seen.

US scientists get glimpse of antihelium

Darwin Discovery Days Salem-Keizer Science Expo. Darwin Discovery Days Salem-Keizer Science Expo. The Hacker War Over WikiLeaks Rages On. Today WikiLeaks founder Julian Assange, wanted in connection with sex-related charges in Sweden, turned himself in to the police in London.

The Hacker War Over WikiLeaks Rages On

And while Assange’s personal troubles escalate, so does the online war over WikiLeaks. Last week came the cyber attack against, which hacker “Jester” claimed to have organized. On his blog, Jester describes himself as a”hacktivist for good” and someone who is “obstructing the lines of communication for terrorists, sympathizers, fixers, facilitators, oppressive regimes and other general bad guys.” [Los Angeles Times] EU to invest €6.4 billion in research. BRUSSELS - Research organisations, universities and industry, will receive a sum of €6.4 billion next year in the European Commission's largest ever allocation for research and innovation.

EU to invest €6.4 billion in research

Research in the EU will receive a 12 percent increase in funding (Photo: Notat) Research commissioner Máire Geoghegan-Quinn said on Monday (19 July) when presenting the plan that around 16,000 participants, including about 3,000 small and medium businesses, will receive funding. "The investment I am announcing today will create 165,000 jobs over the relatively short term and potentially many many more over the long term," the commissioner told reporters. The sum represents a 12 percent increase on the €5.7 billion that will have been handed out in 2010.

Primordial Sperm Gene Found. A gene involved in the production of sperm is shared by almost all living animals, including sea anemones, worms, insects, marine invertebrates, fish and humans.

Primordial Sperm Gene Found

The finding suggests the ability to produce sperm arose just once, 600 million years ago, and has been conserved through all subsequent animal evolution. “People have thought that there was a single common ancestor because we see sperm reproduction in many animals, but previously there was no conclusive evidence that sperm production has a single common origin in all animals,” said geneticist Eugene Xu from Northwestern University, co-author of the study being published July 15 in PLoS Genetics.

Renee Reijo Pera, director of stem cell research at Stanford University, said the result is interesting because sperm cells have so much in common, but also need to be different enough to be specific to each species. What should social software for science lo. Why is the news media comfortable with lying about science? The year is only a couple of weeks old, but it's already been a strange one for science news. With a steady flow of coverage on a huge range of complex subjects, it's easy for things to go wrong, and for journalists to come up with material that doesn't get the science right.

But a few recent cases appear to involve news organizations that have gone out of their way to get a science story wrong. The news industry tends to respond badly to cases where people make up the contents of their stories—witness Jayson Blair and the fake Bush National Guard records. But, so far, the response to the recent science news-related events has been complete indifference. The most egregious case seems to have happened at the UK's Daily Mail, which ran an article in the Science and Technology section of its website entitled "The mini ice age starts here.

" G1 > Ciência e Saúde - NOTÍCIAS - Veja imagens premiadas em conc. CU Team Discovers Tiny RNA Molecule With Big Implications for th. An extremely small RNA molecule created by a University of Colorado at Boulder team can catalyze a key reaction needed to synthesize proteins, the building blocks of life. The findings could be a substantial step toward understanding "the very origin of Earthly life," the lead researcher contends. The smallest RNA enzyme ever known to perform a cellular chemical reaction is described in a paper published this week in the Proceedings of the National Academy of Sciences.

The paper was written by CU graduate student Rebecca Turk, research associate Nataliya Chumachenko and Professor Michael Yarus of the molecular, cellular and developmental biology department. Cellular RNA can have hundreds or thousands of its basic structural units, called nucleotides. BBC - Earth News - Ants are first animal known to navigate by st. Fish See Their Enemies’ Faces in Ultraviolet. Seen in the right light, yellow reef fish become spotty pains in the tail fin. Members of one damselfish species use facial patterns of speckles and swooshes to identify the fish species they regularly attack, researchers report in an upcoming issue of Current Biology. These markings show up only in ultraviolet light, says visual ecologist Ulrike Siebeck of the University of Queensland in Brisbane, Australia.

In tests, Siebeck and her colleagues found that male Ambon damselfish could tell their own species from another just by seeing the ultraviolet markings. The problem with science journalism… : Pharyngula. Breezy Love, or the Sacking of the Bees - Opinionator Blog - NYT. Mystery of Half-Male Chickens Solved. Some chickens have sexual-identity issues, waddling around with half-male and half-female plumage. Now researchers have figured out the cause of the gender-confusing traits: Half of their bodies are full of female sex cells, while the other half contains mostly male cells. Lenin's Embalmers - The Scientist - Magazine of the Life Science. Variations on dividing circular area into equal parts. U.S. stem cell expert is hottest researcher. Smoking, but not past alcohol abuse, may impair mental function. Public release date: 16-Mar-2010 [ Print | E-mail Share ] [ Close Window ]

Childhood Adversity May Promote Cellular Aging. Printer friendly version Share 16 March 2010 Elsevier. How plants put down roots. Copernicus Invented Geology, Study Claims. Robot folds towel, but does it do windows? - Science Fair: Scien. Updated 2010-04-07 9:33 AM. In the long run, all that ash can be a good thing - Los Angeles. Radiation-soaking metamaterial puts black in the shade - tech -