How a simple mathematic formula is starting to explain the bizarre prevalence of altruism in society
Jul 18, 2008 |
3.7 / 5 (59) |
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Why do humans cooperate in things as diverse as environment conservation or the creation of fairer societies, even when they don’t receive anything in exchange or, worst, they might even be penalized?
Deep Impact Films Earth as an Alien World
Space & Earth / Space Exploration
Jul 18, 2008 |
4.5 / 5 (33) |
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(PhysOrg.com) -- NASA's Deep Impact spacecraft has created a video of the moon transiting (passing in front of) Earth as seen from the spacecraft's point of view 31 million miles away. Scientists are using ...
Natural selection may not produce the best organisms
Biology /
Jul 18, 2008 |
3.6 / 5 (40) |
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"Survival of the fittest" is the catch phrase of evolution by natural selection. While natural selection favors the most fit organisms around, evolutionary biologists have long wondered whether this leads to the best possible ...
Could arthritis wonder drugs provide clues for all disease?
Medicine & Health / Medications
Jul 18, 2008 |
4.5 / 5 (19) |
1
Drugs that have helped treat millions of rheumatoid arthritis sufferers may hold the key to many more medical conditions, including atherosclerosis – a leading cause of heart disease – says the researcher who jointly invented ...
Shimmering ferroelectric domains
Jul 18, 2008 |
4.6 / 5 (14) |
2
Ferroelectric materials are named after ferromagnetic ones because they behave in a similar way. The main difference: these materials are not magnetic, but permanently electrically polarized. They have great ...
Study identifies cells for spinal-cord repair
Biology /
Jul 18, 2008 |
4.9 / 5 (22) |
0
(PhysOrg.com) -- A researcher at MIT’s Picower Institute for Learning and Memory has pinpointed stem cells within the spinal cord that, if persuaded to differentiate into more healing cells and fewer scarring cells following ...
HIV conquers immune system faster than previously realized
Medicine & Health / HIV & AIDS
Jul 18, 2008 |
4.8 / 5 (4) |
0
New research into the earliest events occurring immediately upon infection with HIV-I shows that the virus deals a stunning blow to the immune system earlier than was previously understood. According to scientists at Duke ...
3-D Views Posted From NASA's Phoenix Mars Lander
Space & Earth / Space Exploration
Jul 18, 2008 |
4.2 / 5 (5) |
3
(PhysOrg.com) -- NASA's Phoenix Mars Mission has released stereo images of the Martian surface near the Phoenix lander. The images in the new 3-D Gallery combine views from the left and right "eyes" of the ...
Phoenix Mars Lander Continues Tests With Rasp
Space & Earth / Space Exploration
Jul 18, 2008 |
3.9 / 5 (11) |
1
(PhysOrg.com) -- The team operating NASA's Phoenix Mars Lander plans to tell the lander today to do a second, larger test of using a motorized rasp to produce and gather shavings of frozen ground.
Researchers use salmonella to administer vaccines
Biology /
Jul 18, 2008 |
4.5 / 5 (2) |
2
(PhysOrg.com) -- Researchers at the Biodesign Institute at Arizona State University have made a major step forward in their work to develop a biologically engineered organism that can effectively deliver an ...
Early study reveals promising Alzheimer's disease treatment
Jul 18, 2008 |
4.7 / 5 (12) |
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A drug once approved as an antihistamine in Russia improved thinking processes and ability to function in patients with Alzheimer's disease in a study conducted there, said an expert at Baylor College of Medicine in Houston. ...
Cancer researchers call for ethnicity to be taken into account
Jul 18, 2008 |
4.3 / 5 (6) |
1
Breast cancer research needs to investigate how a person's ethnicity influences their response to treatment and its outcome, according to a new Comment piece in today's Lancet (18 July) by researchers from Imperial Colleg ...
A Viral Cloaking Device: Biologists show how Human Cytomegalovirus hides from the immune system
Biology /
Jul 18, 2008 |
5 / 5 (10) |
1
(PhysOrg.com) -- Viruses achieve their definition of success when they can thrive without killing their host. Now, biologists Pamela Bjorkman and Zhiru Yang of the California Institute of Technology have uncovered how one ...
Saharan dust storms sustain life in Atlantic Ocean
Space & Earth / Earth Sciences
Jul 18, 2008 |
4.4 / 5 (16) |
0
Research at the University of Liverpool has found how Saharan dust storms help sustain life over extensive regions of the North Atlantic Ocean.
Suckling infants trigger surges of trust hormone in mothers' brains
Biology /
Jul 18, 2008 |
4.8 / 5 (5) |
0
Researchers from the University of Warwick, in collaboration with other universities and institutes in Edinburgh, France and Italy, have for the first time been able to show exactly how, when a baby suckles at a mother's ...
