News tagged with biological
Common plastics chemicals linked to ADHD symptoms
Medicine & Health / Psychology & Psychiatry
Nov 19, 2009 |
4.4 / 5 (5) |
4
Phthalates are important components of many consumer products, including toys, cleaning materials, plastics, and personal care items. Studies to date on phthalates have been inconsistent, with some linking exposure to these ...
Warm-blooded dinosaurs worked up a sweat
Nov 11, 2009 |
5 / 5 (5) |
1
(PhysOrg.com) -- Were dinosaurs endothermic (warm-blooded) like present-day mammals and birds or ectothermic (cold-blooded) like present-day lizards? The implications of this simple-sounding question go beyond ...
A sticky solution for identifying effective probiotics
Nov 24, 2009 |
5 / 5 (1) |
0
Scientists have crystallised a protein that may help gut bacteria bind to the gastrointestinal tract. The protein could be used by probiotic producers to identify strains that are likely to be of real benefit to people.
Possible link studied between childhood abuse and early cellular aging
Medicine & Health / Psychology & Psychiatry
Nov 20, 2009 |
3.7 / 5 (3) |
0
Children who suffer physical or emotional abuse may be faced with accelerated cellular aging as adults, according to new research from Butler Hospital and Brown University.
Just like old times: Generating RNA molecules in water
Nov 20, 2009 |
4 / 5 (3) |
0
A key question in the origin of biological molecules like RNA and DNA is how they first came together billions of years ago from simple precursors. Now, in a study appearing in this week's Journal of Biological Chemistry, resear ...
Report Says Musicians Hear Better Than Non-Musicians
Medicine & Health / Neuroscience
Nov 17, 2009 |
5 / 5 (1) |
0
(PhysOrg.com) -- The Journal of Neuroscience reports this week that musicians are better than non-musicians at recognizing speech in noisy environments. The finding from a study conducted by neurobiologists at Nor ...
Are teenagers wired differently than adults?
Medicine & Health / Psychology & Psychiatry
Nov 17, 2009 |
5 / 5 (2) |
0
Parents have long suspected that the brains of their teenagers function differently than those of adults. With the advent of magnetic resonance imaging, or MRI, we have begun to appreciate how the brain continues to develop ...
Warmer means windier on world's biggest lake
Space & Earth / Earth Sciences
Nov 15, 2009 |
3.8 / 5 (6) |
0
Rising water temperatures are kicking up more powerful winds on Lake Superior, with consequences for currents, biological cycles, pollution and more on the world's largest lake and its smaller brethren.
Climate Change, Nitrogen Loss Threaten Plant Life in Arid Desert Soils
Nov 05, 2009 |
3 / 5 (9) |
0
(PhysOrg.com) -- In the Mojave Desert winds howl across this hottest place in North America, blowing sands across Death Valley and through empty ghost towns, swirling across treeless land for hundreds of miles. ...
New study further disputes notion that amputee runners gain advantage from protheses
Nov 04, 2009 |
5 / 5 (4) |
5
A study by six researchers, including a University of Colorado at Boulder associate professor and his former doctoral student, shows that amputees who use running-specific prosthetic legs have no performance ...
Mobile microscopes illuminate the brain
Nov 03, 2009 |
5 / 5 (5) |
0
(PhysOrg.com) -- By building a tiny microscope small enough to be carried around on a rats' head, scientists at the Max Planck Institute for Biological Cybernetics in Tübingen, Germany, have found a way to ...
Bacteria 'invest' wisely to survive uncertain times, scientists report
Nov 02, 2009 |
not rated yet |
0
Like savvy Wall Street money managers, bacteria hedge their bets to increase their chances of survival in uncertain times, strategically investing their biological resources to weather unpredictable environments.
Study reveals a 'missing link' in immune response to disease (w/ Video)
Nov 02, 2009 |
5 / 5 (1) |
0
The immune system's T cells have the unique responsibilities of being both jury and executioner. They examine other cells for signs of disease, including cancers or infections, and, if such evidence is found, ...
Why do animals, especially males, have so many different colors?
Oct 31, 2009 |
4.5 / 5 (6) |
2
(PhysOrg.com) -- In new research, UCLA scientists claim that "secondary sexual traits" like coloring may let animals know which species to avoid fighting.
The importance of grandmothers in the lives of their grandchildren
Oct 29, 2009 |
4 / 5 (3) |
3
(PhysOrg.com) -- It is widely believed that women live long post-reproductive lives to help care for their grandchildren. According to the "Grandmother Hypothesis," post-menopausal women can increase their ...
