DNA shows that last woolly mammoths had North American roots
Biology /
Sep 04, 2008 |
4.7 / 5 (13) |
0
In a surprising reversal of conventional wisdom, a DNA-based study has revealed that the last of the woolly mammoths—which lived between 40,000 and 4,000 years ago—had roots that were exclusively North American.
New technique makes corn ethanol process more efficient
Sep 04, 2008 |
4.1 / 5 (15) |
2
(PhysOrg.com) -- Researchers at Washington University in St. Louis are proposing to borrow a process used in breweries and wastewater treatment facilities to make corn ethanol more energy efficient. They are ...
Team studies how new helium ion microscope measures up
Sep 04, 2008 |
4.3 / 5 (13) |
1
Just as test pilots push planes to explore their limits, researchers at the National Institute of Standards and Technology are probing the newest microscope technology to further improve measurement accuracy ...
Studies spot numerous undiscovered gene alterations in pancreatic and brain cancers
Sep 04, 2008 |
4.9 / 5 (11) |
0
HHMI investigators have detected a multitude of broken, missing, and overactive genes in pancreatic and brain tumors, in the most detailed genetic survey yet of any human tumor. Some of these genetic changes were previously ...
A light bulb and a few chemicals: Scientists find a way to help make new reactions
Sep 04, 2008 |
4 / 5 (13) |
0
(PhysOrg.com) -- Princeton scientists have discovered a way of stimulating organic molecules that they expect will prompt researchers to create materials from new kinds of chemical reactions.
Petascale climate modeling heats up
Sep 04, 2008 |
3.9 / 5 (13) |
2
The development of powerful supercomputers capable of analyzing decades of data in the blink of an eye mark a technological milestone capable of bringing comprehensive changes to science, medicine, engineering, and business ...
Infectious, test tube-produced prions can jump the 'species barrier'
Biology /
Sep 04, 2008 |
5 / 5 (9) |
2
Researchers have shown that they can create entirely new strains of infectious proteins known as prions in the laboratory by simply mixing infectious prions from one species with the normal prion proteins of another species. ...
New guide explores making the most of Social Security
Sep 04, 2008 |
4.1 / 5 (11) |
1
Many older Americans may be shortchanging their golden years by tapping into Social Security too soon, according to a University of Illinois expert who has studied the federal retirement program for nearly two decades.
Action as a goal may be too broad, new research suggests
Medicine & Health / Psychology & Psychiatry
Sep 04, 2008 |
4.6 / 5 (9) |
1
A series of experiments conducted by researchers at the University of Illinois suggest that society's emphasis on action over inaction may lead to unforeseen consequences.
Fingerprint find in decade-old double murder probe
Sep 04, 2008 |
4.6 / 5 (9) |
0
A decade old US double murder probe has received a new breakthrough following investigations by a University of Leicester forensic scientist at Northamptonshire Police.
Intellectual work induces excessive calorie intake
Sep 04, 2008 |
4.4 / 5 (9) |
1
A Université Laval research team has demonstrated that intellectual work induces a substantial increase in calorie intake. The details of this discovery, which could go some way to explaining the current obesity epidemic, ...
Study shows no connection between measles, mumps, rubella (MMR) vaccine and autism
Sep 04, 2008 |
4.1 / 5 (8) |
6
In a case-control study, the presence of measles virus RNA was no more likely in children with autism and GI disturbances than in children with only GI disturbances. Furthermore, GI symptom and autism onset were unrelated ...
New 'trick' allows HIV to overcome a barrier to infection
Medicine & Health / HIV & AIDS
Sep 04, 2008 |
4.1 / 5 (7) |
0
Researchers have discovered a new 'trick' that allows HIV to overtake resting T cells that are normally highly resistant to HIV infection, according to a report in the September 5th issue of the journal Cell. The binding of the ...
Researcher says: No-till practices show extended benefits on wheat and forage
Space & Earth / Earth Sciences
Sep 04, 2008 |
4.1 / 5 (7) |
0
With more than 3 million acres of wheat in north Texas, 50 percent or more of which is grazed by 1 to 2 million head of cattle, it is important to look at tillage practices and their effect on forage production, said a Texas ...
Scientists Test 'Artificial Upwelling' to Learn More About Complex Ocean Ecosystem Behavior
Sep 04, 2008 |
3.5 / 5 (8) |
0
(PhysOrg.com) -- A team of scientists is studying the complex ocean upwelling process by mimicking nature – pumping cold, nutrient-rich water from deep within the Pacific Ocean and releasing it into surface waters near Hawaii ...
