Uncategorized
- Tech
Tractor beam
Magnetic nanoparticles selectively bind to specific bacteria and can drag them out of a liquid.
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19905
This article says that American students’ science and math skills have been falling relative to those of their peers in other countries. How true. Recent tests put the United States in 14th place in an international comparison. But at least we are still in the top 10! Tom ReesorConway, S.C.
- Humans
Strategies to improve teaching
Incorporating emerging data on how kids learn and cement ideas could help schools teach science more effectively, a new report argues.
- Health & Medicine
Putting tumors on pause
Keeping benign breast tumors from progressing into a malignant cancer can be achieved in mice by reducing a signaling protein.
- Health & Medicine
Diabetes drug shows new potential
Exendin-4 (exenatide) might complement a drug called anti-CD3 monoclonal antibody in reversing type 1 diabetes, a study in mice shows.
- Humans
Divorce is not ecofriendly
Divorce often takes a devastating toll on families, but it has significant impacts on the environment as well.
- Health & Medicine
Malaria’s new guises
Scientists have observed Plasmodium falciparum enjoying three distinct lifestyles—two of which have never been seen before—in the blood of infected children.
- Agriculture
Lettuce Liability
A new industry program to self-regulate most salad producers is forcing affected farmers to choose between adopting measures unfriendly to wildlife and a loss of major markets for their greens.
- Archaeology
Muons Meet the Maya
Physicists are exploring the use of muons generated by cosmic rays to explore Mayan archaeological sites and to probe the interiors of volcanoes and shipping containers.
- Math
Mathematical Police Find Security Bug
Cryptographers uncover potential weakness in encryption algorithms.
- Humans
Letters from the December 8, 2007, issue of Science News
Errors of biblical proportions “Lazarus taxa” is an appropriate name for species that seem to have been resurrected (“Back from the Dead?” SN: 11/17/07, p. 312). However, the Lazarus whom Jesus raised from the dead was a householder who lived with his sisters, Mary and Martha, in Bethany (John 11). The beggar named Lazarus appeared […]
- Humans
From the November 27, 1937, issue
A smashing new particle accelerator comes to the nation's capital, a new subatomic particle reveals its weight, and pollen in a Wisconsin bog tells of past climate change.
