Metastatic movements in 3-D October 06, 2008 | User rating: not rated yet | No comments yet
Caswell et al.report in the Journal of Cell Biology how the altered behavior of integrins can prompt metastatic movement in tumor cells. | |
Food for thought -- regulating energy supply to the brain during fasting October 05, 2008 | User rating: 4.4 / 5 after 23 vote(s)
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If the current financial climate has taught us anything, it's that a system where over-borrowing goes unchecked eventually ends in disaster. It turns out this rule applies as much to our bodies as it does to economics. Instead ... | |
Discovery of natural compounds that could slow blood vessel growth October 04, 2008 | User rating: 4.6 / 5 after 13 vote(s)
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Using computer models and live cell experiments, biomedical engineers at the Johns Hopkins University School of Medicine have discovered more than 100 human protein fragments that can slow or stop the growth of cells that ... | |
 Newly identified cells make fat October 04, 2008 | User rating: not shown ( 2 vote(s) ) | No comments yet
To understand where fat comes from, you have to start with a skinny mouse. By using such a creature, and observing the growth of fat after injections of different kinds of immature cells, scientists at the ... | |
 Which grass is greener to power the bioenergy era? October 03, 2008 | User rating: not shown ( 4 vote(s) ) | No comments yet
(PhysOrg.com) -- Talk about a field of dreams. Cornell bioenergy plant experts are learning which field grasses are the best candidates for "dedicated energy" crops in the Northeast, considering the region's ... | |
 Chemical 'orienteering': how accurately can cells follow a chemical trail to find their way around? October 03, 2008 | User rating: not shown ( 4 vote(s) ) | User comments: 1
(PhysOrg.com) -- Scientists have long known that single-cell organisms find their way around by detecting chemicals in their surroundings. Now new research out this week in the Proceedings of the National ... | |
Gene expression in alligators suggests birds have 'thumbs' October 03, 2008 | User rating: not shown ( 3 vote(s) ) | No comments yet
The latest breakthrough in a 120 year-old debate on the evolution of the bird wing was published in the open-access journal PLoS ONE, October 3, by Alexander Vargas and colleagues at Yale University, the University ... | |
 First glimpse of a key DNA repair protein at work October 03, 2008 | User rating: 5 / 5 after 11 vote(s)
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Repairing breaks in the two strands of the DNA double helix is critical for avoiding cancer. In humans and other organisms, a molecular machine called the MRN complex is responsible for finding and signaling ... | |
Egalitarian revolution in the Pleistocene? October 03, 2008 | User rating: 4.1 / 5 after 17 vote(s)
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Although anthropologists and evolutionary biologists are still debating this question, a new study, published in the open-access journal PLoS ONE, supports the view that the first egalitarian societies may have appeared ... | |
So-called 'sandfish' could help materials handling and process technology specialists October 03, 2008 | User rating: not shown ( 2 vote(s) ) | No comments yet
It moves as quickly in sand as a fish moves through water, which is why this lizard, a species of skink (Scincus scincus) that grows to about 15 cm long and lives in the deserts of North Africa and the Near East, is ... | |
Singing to females makes male birds' brains happy October 03, 2008 | User rating: not shown ( 2 vote(s) ) | No comments yet
The melodious singing of birds has been long appreciated by humans, and has often been thought to reflect a particularly positive emotional state of the singer. In a new study published in the online, open-access journal ... | |
Bee swarms follow high-speed 'streaker' bees to find a new nest October 03, 2008 | User rating: not shown ( 3 vote(s) ) | No comments yet
It's one of the hallmarks of spring: a swarm of bees on the move. But how a swarm locates a new nest site when less than 5% of the community know the way remains a mystery. Curious to find out how swarms cooperate and are ... | |
Decline in Alaskan sea otters affects bald eagles' diet October 03, 2008 | User rating: not shown ( 3 vote(s) ) | No comments yet
Sea otters are known as a keystone species, filling such an important niche in ocean communities that without them, entire ecosystems can collapse. Scientists are finding, however, that sea otters can have even farther-reaching ... | |
Scientists identify a molecule that coordinates the movement of cells October 02, 2008 | User rating: 4.7 / 5 after 10 vote(s)
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Even cells commute. To get from their birthplace to their work site, they sequentially attach to and detach from an elaborate track of exceptionally strong proteins known as the extracellular matrix. Now, in research to appear ... | |
Reproducing early and often is the key to rapid evolution in plants October 02, 2008 | User rating: not shown ( 4 vote(s) ) | No comments yet
Yale researchers have harnessed the power of 21st century computing to confirm an idea first proposed in 1916 — that plants with rapid reproductive cycles evolve faster. Their findings appear in the October 3rd edition of ... | |
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