Some primate species, including sooty mangabeys, harbor simian immunodeficiency viruses but remain healthy, unlike rhesus macaques. The immune systems of sooty mangabeys become significantly less activated during SIV infection than the immune systems of macaques. The less vigorous immune response to SIV in mangabeys may be an effective evolutionary response to a virus that resists [...]
Researchers have shown that immune-defense cells influenced by embryonic stem cell-derived cells can help prevent the rejection of hearts transplanted into mice, all without the use of immunosuppressive drugs. The finding has implications for possible improvements in organ and bone marrow transplantation for humans.
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Materials deep inside Earth have unexpected atomic properties that might force earth scientists to revise their models of Earth’s internal processes. Recreating in the lab materials they believe exist in the lowermost mantle 2,900 kilometers below Earth’s surface, researchers say the materials exhibit unexpected atomic properties that might influence how heat is transferred within Earth’s [...]
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The next major advance in computer processors will likely be the move from today’s two-dimensional chips to three-dimensional circuits, and the first three-dimensional synchronization circuitry is now running at 1.4 gigahertz at the University of Rochester.
The Milky Way contains a disk of “dark matter,” according to new calculations by astronomers. They have used the results of a supercomputer simulation to deduce the presence of this disk.
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Scientists have isolated three important genes involved in the development of a type of childhood brain cancer. Researchers have found three genes associated with specific characteristics of ependymoma — the third most common form of childhood brain cancer.
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The forecast for clear skies and smooth sailing for oceanic vessels has been impeded by worldwide concerns of their significant contributions to air pollution and greenhouse gas emissions that impact the Earth’s climate.
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Prosthetic ears appear to improve hearing and speech recognition in noisy environments, according to a new report.
Want more power and longer battery life for that cell phone, laptop, and digital music player? “Flower power” may be the solution. Chemists are reporting development of flower-shaped nanoparticles with superior electronic performance than conventional battery materials.
For years, audiences have been thrilled by the amazing performances of master magicians, such as David Blaine and Derren Brown. Now, the results of a new experiment suggests that such magical feats can also work wonders with children’s confidence and social skills.
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