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General Science news 1234

From Canada to the Caribbean: Tree leaves control their own temperature

June 11, 2008 | User rating: 5 / 5 after 6 vote(s) | No comments yet

The temperature inside a healthy, photosynthesizing tree leaf is affected less by outside environmental temperature than originally believed, according to new research from biologists at the University of Pennsylvania.


How to build a plant

June 26, 2008 | User rating: 5 / 5 after 8 vote(s) | User comments: 1

Dr. Sarah Hake and her colleagues, George Chuck, Hector Candela-Anton, Nathalie Bolduc, Jihyun Moon, Devin O'Connor, China Lunde, and Beth Thompson, have taken advantage of the information from sequenced grass genomes to ...


Thinking ahead: Bacteria anticipate coming changes in their environment

June 09, 2008 | User rating: 5 / 5 after 27 vote(s) | User comments: 3

A new study by Princeton University researchers shows for the first time that bacteria don't just react to changes in their surroundings -- they anticipate and prepare for them. The findings, reported in the June 6 issue ...


Zoos ask, what to do with an aged lemur?

June 21, 2008 | User rating: 5 / 5 after 20 vote(s) | User comments: 1

(AP) -- Even as a youngster, Rollie looked older and wiser than his years. His white mustache sprouted longer by the month, until it flamed from his cheeks like a German kaiser's. Sometimes, it all but hid ...


Stem cell researchers give old muscle new pep

June 15, 2008 | User rating: 4.9 / 5 after 31 vote(s) | No comments yet

Old muscle got a shot of youthful vigor in a stem cell experiment by bioengineers at the University of California, Berkeley, setting the path for research on new treatments for age-related degenerative conditions ...


Researchers create molecule that nudges nerve stem cells to mature

June 15, 2008 | User rating: 4.9 / 5 after 41 vote(s) | No comments yet

Inspired by a chance discovery during another experiment, researchers at UT Southwestern Medical Center have created a small molecule that stimulates nerve stem cells to begin maturing into nerve cells in culture.


'Early bird' project really gets the worm

June 26, 2008 | User rating: 4.9 / 5 after 10 vote(s) | No comments yet

Scientists from the LSU Museum of Natural Science, or MNS, recently participated in a project joining together the most prominent ornithological research programs in the world. This study – the largest study of bird genetics ...


New electrostatic-based DNA microarray technique could revolutionize medical diagnostics

June 30, 2008 | User rating: 4.9 / 5 after 19 vote(s) | No comments yet

The dream of personalized medicine — in which diagnostics, risk predictions and treatment decisions are based on a patient's genetic profile — may be on the verge of being expanded beyond the wealthiest of ...


Researchers witness assembly of molecules critical to protein function

June 16, 2008 | User rating: 4.9 / 5 after 8 vote(s) | No comments yet

A Virginia Tech research group lead by two biochemistry graduate students has isolated proteins responsible for the iron-sulfur cluster assembly process and witnessed the necessary protein interactions in ...


Membrane complexes take flight

June 12, 2008 | User rating: 4.9 / 5 after 7 vote(s) | No comments yet

Against currently held dogma, scientists at the Universities of Cambridge and Bristol have revealed that the interactions within membrane complexes can be maintained intact in the vacuum of a mass spectrometer. Their research ...


New research on octopuses sheds light on memory

June 17, 2008 | User rating: 4.8 / 5 after 19 vote(s) | User comments: 2

Research on octopuses has shed new light on how our brains store and recall memory, says Dr. Benny Hochner of the Department of Neurobiology at the Alexander Silberman Institute of Life Sciences at the Hebrew ...


Unexpected finding of molecule's dual role in mice may open new avenue to cholesterol reduction

June 12, 2008 | User rating: 4.8 / 5 after 6 vote(s) | No comments yet

Researchers have discovered an unknown regulator of fat and cholesterol production in the liver of mice, a significant finding that could lead to new therapies for lowering unhealthy blood levels of cholesterol and fats.


Global war deaths have been substantially underestimated

June 20, 2008 | User rating: 4.8 / 5 after 6 vote(s) | No comments yet

Research paper: 50 years of violent war deaths from Vietnam to Bosnia
Globally, war has killed three times more people than previously estimated, and there is no evidence to support claims of a recent decline ...


From the egg, baby crocodiles call to each other and to mom

June 23, 2008 | User rating: 4.8 / 5 after 6 vote(s) | User comments: 2

For the first time, researchers have shown that the pre-hatching calls of baby Nile crocodiles actually mean something to their siblings and to their mothers. The calls—which are perfectly audible to humans and sound like ...


Ancient antibody molecule offers clues to how humans evolved allergies

June 13, 2008 | User rating: 4.8 / 5 after 10 vote(s) | No comments yet

Scientists funded by the Biotechnology and Biological Sciences Research Council have discovered how evolution may have lumbered humans with allergy problems. The team from the Randall Division of Cell & Molecular Biophysics, ...


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