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Reviving a theory first proposed in the late 1800s that the development of organs in the normal embryo and the development of cancers are related, scientists at the Salk Institute for Biological Studies have studied organ development in mice to unravel how breast cancers, and perhaps other cancers, develop in people. Their findings provide new ways to predict and personalize the di
Researchers have discovered a restricted pattern of molecules that differentiate early-stage breast tumors from invasive, life-threatening cancer. They also found a similar molecular signature that correlated with the aggressiveness of invasive tumors, and with the time to metastasis and overall survival.
The molecular pathway that carries time-of-day signals from the body's internal clock to ultimately guide daily behavior is like a black box, says Amita Sehgal, PhD, the John Herr Musser Professor of Neuroscience and Co-Director, Comprehensive Neuroscience Center, at the Perelman School of Medicine, University of Pennsylvania.
Scientists at The Scripps Research Institute in California and the Technion–Israel Institute of Technology have developed a "biological computer" made entirely from biomolecules that is capable of deciphering images encrypted on DNA chips. Although DNA has been used for encryption in the past, this is the first experimental demonstration of a molecular cryptosystem of images based
A gene that influences the inflammatory response to infection may also predict the effectiveness of drug treatment for a deadly form of tuberculosis.
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A gene that influences the inflammatory response to infection may also predict the effectiveness of drug treatment for a deadly form of tuberculosis.
Shark attacks in the U.S. declined in 2011, but worldwide fatalities reached a two-decade high, according to the University of Florida's International Shark Attack File report released today.
For all those who have wondered where they'd be without their mothers, a study reported in the February Cell Metabolism, a Cell Press publication, puts a whole new spin on the question. Mice whose mothers pass along a mutant copy of a single imprinted gene can't keep themselves warm and die soon after leaving the comfort of the nest. The findings also reveal that the babies require a second
An international team of scientists has demonstrated a revolutionary new way of magnetic recording which will allow information to be processed hundreds of times faster than by current hard drive technology.
Visitors to Statuary Hall in the U.S. Capitol Building may have experienced a curious acoustic feature that allows a person to whisper softly at one side of the cavernous, half-domed room and for another on the other side to hear every syllable. Sound is whisked around the semi-circular perimeter of the room almost without flaw. The phenomenon is known as a whispering gallery.
Parkinson's disease researchers at the University at Buffalo have discovered how mutations in the parkin gene cause the disease, which afflicts at least 500,000 Americans and for which there is no cure.
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.
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.
The abundance of false information available on the Internet, in movies and on TV has created a big challenge for educators.
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
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.
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After NASA's lunar voyages, the samples were given as goodwill souvenirs to states and nations. Many have gone missing. But an investigator's on their trail.
As Karen Handel, the executive at the center of the funding controversy, steps down, many Komen supporters question the foundation's salaries, legal strategies and ties with certain products.The Susan G. Komen for the Cure foundation took another step toward rehabilitating its standing in the breast cancer community with the resignation of the executive at the center of the Planned Parenthood funding controversy.
Hovering objects suggest that future robots could fly like jellyfish
The European Space Agency (ESA) and its Russian counterpart, Roscosmos, are making plans to carry out the international ExoMars exploration program without help from one of the project's original partners: NASA. The U.S. space agency may have to pull out of the project if the Obama Administration's 2013 budget request to Congress, to be released on Monday, includes expected cuts in the agency's funding for Mars programs.
Tropical tree-dwellers are the only primates to chat entirely in ultrasonic frequencies
In recent weeks, a pair of high-resolution images of the Earth has captivated the Internet. Taken by the Suomi NPP satellite, these pictures portray our planet's incredible beauty with a whopping 8,000 by 8,000 pixel and 11,500 by 11,500 pixel detail.
The same maps that can help you find your way to the mall can help the police predict where meth labs will pop up next. Here's a look inside the strange, fascinating world of geospatial predictive analysis.
Remember gazing up at the moon and wondering what it’s made of? Some pretty smart people are doing the same thing today. And it’s not childlike curiosity that’s motivating them: It’s money.
Texting while driving, speeding and back-seat hanky-panky aren't all that parents need to worry about when their kids are in cars: Add secondhand smoke to the list.
Sex education is failing to reduce adolescent birthrates in conservative states, according to a new study. Perhaps paradoxically, states with a majority conservative population and higher degree of religiosity tend to have higher teen birthrates.
All eyes are on private rocketeers after the latest problem with Russia's Soyuz spacecraft, which is now the only means of sending crews to the International Space Station
A planet in a two-star system can chaotically bounce between its stars for thousands of years before being ejected, a new study suggests.
"It's a mystery" why giant, shrimp-like animals found off New Zealand are nearly three times larger than other amphipods, experts say.
Computer scientists have discovered the four factors that make news stories popular on Twitter
The Russian drilling team has successfully reached the waterline on Antarctica's Lake Vostok.
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How early breast tumors become deadly: microRNAs might hold the answer
New insights into how to correct false knowledge
School closures slow spread of pH1N1
Domestic cats, and wild bobcats and pumas, living in same area have same diseases
3 'targeted' cancer drugs raise risk of fatal side effects
Treatment for tuberculosis can be guided by patients' genetics
2011 shark attacks remain steady, deaths highest since 1993
Without second wave of brown fat, young mice can't live without mama
Parkinson's disease: Study of live human neurons reveals the disease's genetic origins
Warning! Collision imminent!
A bronze matryoshka doll: The metal in the metal in the metal
Researchers uncover a mechanism to explain dune field patterns
Copper + love chemical = big sulfur stink
The right recipe: Engineering research improves laser detectors, batteries
Nanorod-assembled order affects diffusion rate and direction
Invasive alien predator causes rapid declines of European ladybirds
Discovery predicts patient sensitivity to important drug target in deadly brain cancer
What drives public opinion on climate change?
Steroids control gas exchange in plants
Compromises between quantity and quality common in animals, do tradeoffs hold true for plants?
Classic portrait of a barred spiral galaxy
Hubble zooms in on a magnified galaxy
The discovery of deceleration
New super-Earth detected within the habitable zone of a nearby cool star
Sun delivered curveball of powerful radiation at Earth
Light makes write for DNA information-storage device
Video: Leaping lizards and dinosaurs inspire robot design
Sunlight and bunker oil a fatal combination for Pacific herring
New device could bring optical information processing
Traditional social networks fueled Twitter's spread
Lessons in coral reef survival from deep time
Advantages of living in the dark: The multiple evolution events of 'blind' cavefish
The advantage of ambiguity in language
Ancient popcorn discovered in Peru
The fermented cereal beverage of the Sumerians may not have been beer
Social media can alter research priorities, according to paper in Nature
Drug potency -- what happens in space?
Science 101: Different teaching fosters better comprehension
Human gender roles influence research on animals
International collaboration between researchers results in greater recognition
At 2,500 pounds and 43 feet, prehistoric snake is the largest on record
Baseball cheaters can't hide from the laws of physics
When social fear is missing, so are racial stereotypes
High school biology teachers reluctant to endorse evolution in class
Incense is psychoactive: Scientists identify the biology behind the ceremony
Hamlet fish sheds light on evolution of marine species
Physics Professor Demonstrates Lasing Without Inversion (LWI)
Texting costs are 'out of this world'
Drug trials funded by industry are more likely to publish favorable results
Scientists isolate compound in human saliva that speeds wound healing
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