Ted Talks « audio- og videoarkiv

Exoplanets Clue To Sun's Curious Chemistry

A ground-breaking census of 500 stars, 70 of which are known to host planets, has successfully linked the long-standing "lithium mystery" observed in the Sun to the presence of planetary systems. Using ESO's successful HARPS spectrograph, a team of astronomers has found that sun-like stars that host planets have destroyed their lithium much mo […]

Researchers 'Notch' A Victory Toward New Kind Of Cancer Drug

Scientists have devised an innovative way to disarm a key protein considered to be "undruggable," meaning that all previous efforts to develop a drug against it have failed. Their discovery lays the foundation for a new kind of therapy aimed directly at a critical human protein -- one of a few thousand so-called transcription factors -- that could […]

Quantum Gas Microscope Offers Glimpse Of Quirky Ultracold Atoms

Physicists have created a quantum gas microscope that can be used to observe single atoms at temperatures so low the particles follow the rules of quantum mechanics, behaving in bizarre ways. The work represents the first time scientists have detected single atoms in a crystalline structure made solely of light, called a Bose Hubbard optical lattice.

Preventing Spinal Cord Damage Using A Vitamin B3 Precursor

Substances naturally produced by the human body may one day help prevent paralysis following a spinal cord injury, according to researchers.

Small Asteroid 2009 VA Whizzes By Earth

A newly discovered asteroid designated 2009 VA, which is only about 7 meters in size, passed about 2 Earth radii (14,000 km) from Earth's surface Nov. 6 at around 16:30 EST. This is the third-closest known (non-impacting) Earth approach on record for a cataloged asteroid.

In The War Between The Sexes, The One With The Closest Fungal Relationship Wins

The war between the sexes has been fought on many fronts throughout time -- from humans to birds to insects, the animal kingdom is replete with species involved in their own skirmishes. A recent study demonstrates that certain plants, with some help from fungal friends, may also be involved in this fray.

Why Can't Chimps Speak? Key Differences In How Human And Chimp Versions Of FOXP2 Gene Work

If humans are genetically related to chimps, why did our brains develop the innate ability for language and speech while theirs did not? Scientists suspect that part of the answer to the mystery lies in a gene called FOXP2. When mutated, FOXP2 can disrupt speech and language in humans. Now, a new study reveals major differences between how the human and chim […]

Novel Mouse Gene Suppresses Alzheimer's Plaques And Tangles

A new study reveals that a previously undiscovered mouse gene reduces the two major pathological perturbations commonly associated with Alzheimer's disease (AD). The research finds that the novel gene interacts with a key cellular enzyme previously linked with AD pathology, thereby uncovering a new strategy for treating this devastating disorder.

Tiny Injector To Speed Development Of New, Safer, Cheaper Drugs

Engineering researchers have fabricated a palm-sized, automated, micro-injector that can insert proteins, DNA and other biomolecules into individual cells at volumes exponentially higher than current procedures, and at a fraction of the cost. This will allow scientists to vastly increase preclinical trials for drug development and genetic engineering, and pr […]

Possible Origins Of Pancreatic Cancer Revealed

Cancer biologists have identified a subpopulation of cells that can give rise to pancreatic cancer. They also found that tumors can form in other, more mature pancreatic cell types, but only when they are injured or inflamed, suggesting that pancreatic cancer can arise from different types of cells depending on the circumstances.

audio- og videoarkiv

Ted Talks – Juan Enriques: Decoding the future with genomics

Ted talks – Deborah Gordon: How do ants know what to do?

Ted Talks: Dan Dennett – Can we know our own minds?

Ted Talks: Richard Dawkins – Queerer Than We Can Suppose

Sider

Arkiver

Kategorier

Blogroll

Links

Science Daily

Tags

ClustrMap