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A bronze matryoshka doll: The metal in the metal in the metal

A doll in a doll, and then one more, enveloping them from the outside – this is how Thomas Faessler explains his molecule. He packs one atom in a cage within an atom framework. With their large surfaces these structures can serve as highly efficient catalysts.

Chemistry | Source: Technische Universitaet Muenchen | Views: 44 | Comments: 0
Warning! Collision imminent!

When you are about to collide into something and manage to swerve away just in the nick of time, what exactly is happening in your brain? A new study from the Montreal Neurological Institute and Hospital – The Neuro, McGill University shows how the brain processes visual information to figure out when something is moving towards you or when you are about to head into a collision.

Neuroscience | Source: McGill University | Views: 63 | Comments: 0
New insights into how to correct false knowledge

The abundance of false information available on the Internet, in movies and on TV has created a big challenge for educators.

Psychology | Source: Duke University | Views: 75 | Comments: 0
Entire genome of extinct human decoded from fossil

In 2010, Dr. Svante Pääbo and his colleagues presented a draft version of the genome from a small fragment of a human finger bone discovered in Denisova Cave in southern Siberia. The DNA sequences showed that this individual came from a previously unknown group of extinct humans that have become known as Denisovans. Together with their sister group the Neandertals, Denisovans are the closest extin

Genetics | Source: Max-Planck-Gesellschaft | Views: 67 | Comments: 0
Why the middle finger has such a slow connection

The fingers on the outside – i.e. the thumb and little finger - therefore react faster than the middle finger, which is exposed to the "cross fire" of two neighbours on each side. Through targeted learning, this speed handicap can be compensated. The working group led by PD Dr. Hubert Dinse (Neural Plasticity Lab at the Institute for Neuroral Computation) report in the current issue of PNAS.

Neuroscience | Source: Ruhr-University Bochum | Views: 48 | Comments: 0
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Why the middle finger has such a slow connection

The fingers on the outside – i.e. the thumb and little finger - therefore react faster than the middle finger, which is exposed to the "cross fire" of two neighbours on each side. Through targeted learning, this speed handicap can be compensated. The working group led by PD Dr. Hubert Dinse (Neural Plasticity Lab at the Institute for Neuroral Computation) report in the current issue of PNAS.

Neuroscience | Source: Ruhr-University Bochum | Views: 48 | Comments: 0
Neanderthal demise due to many influences, including cultural changes

As an ice age crept upon them thousands of years ago, Neanderthals and modern human ancestors expanded their territory ranges across Asia and Europe to adapt to the changing environment.

Evolution | Source: Arizona State University | Views: 53 | Comments: 0
Redder ladybirds more deadly, say scientists

A ladybird's colour indicates how well-fed and how toxic it is, according to an international team of scientists. Research led by the Universities of Exeter and Liverpool directly shows that differences between animals' warning signals reveal how poisonous individuals are to predators.

Evolution | Source: University of Exeter | Views: 48 | Comments: 0
Our Amorphophallus is smaller

The famed "corpse flower" plant – known for its giant size, rotten-meat odor and phallic shape – has a new, smaller relative: A University of Utah botanist discovered a new species of Amorphophallus that is one-fourth as tall but just as stinky.

Plant Biology | Source: University of Utah | Views: 48 | Comments: 0
Invasive alien predator causes rapid declines of European ladybirds

A new study provides compelling evidence that the arrival of the invasive non-native harlequin ladybird to mainland Europe and subsequent spread has led to a rapid decline in historically-widespread species of ladybird in Britain, Belgium and Switzerland.

Ecology | Source: Centre for Ecology & Hydrology | Views: 49 | Comments: 0
Researchers uncover a mechanism to explain dune field patterns

In a study of the harsh but beautiful White Sands National Monument in New Mexico, University of Pennsylvania researchers have uncovered a unifying mechanism to explain dune patterns. The new work represents a contribution to basic science, but the findings may also hold implications for identifying when dune landscapes like those in Nebraska's Sand Hills may reach a "tipping point

Geology | Source: University of Pennsylvania | Views: 64 | Comments: 0
School closures slow spread of pH1N1

Closing elementary and secondary schools can help slow the spread of infectious disease and should be considered as a control measure during pandemic outbreaks, according to a McMaster University led study.

Epidemiology | Source: McMaster University | Views: 69 | Comments: 0
Domestic cats, and wild bobcats and pumas, living in same area have same diseases

Domestic cats, wild bobcats and pumas that live in the same area share the same diseases. And domestic cats may bring them into human homes, according to results of a study of what happens when big and small cats cross paths.

Epidemiology | Source: National Science Foundation | Views: 65 | Comments: 0
3 'targeted' cancer drugs raise risk of fatal side effects

Treatment with three relatively new "targeted" cancer drugs has been linked to a slightly elevated chance of fatal side effects, according to a new analysis led by scientists at Dana-Farber Cancer Institute. They added that the risk remains low, but should be taken into account by physicians and patients.

Cancer | Source: Dana-Farber Cancer Institute | Views: 69 | Comments: 0
Smoking associated with more rapid cognitive decline in men

Smoking in men appears to be associated with more rapid cognitive decline, according to a report published Online First by Archives of General Psychiatry, one of the JAMA/Archives journals.

Neuroscience | Source: JAMA and Archives Journals | Views: 73 | Comments: 0
Survey of elementary school student access to food in vending machines, snack bars, other venues

About half of all public and private elementary school students could buy food in one or more competitive venues on campus (vending machines, school stores, snack bars or a la carte lines) by the 2009-2010 school year and sugary foods were available to almost all students with access to these options, according to a report published in the February issue of Archives of Pediatrics & Adole

Health | Source: JAMA and Archives Journals | Views: 61 | Comments: 0
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