Submitted by admin on Sun, 2011-07-17 07:00
Each time a virus invades a healthy individual, antibodies created by the body fight to fend off the intruders. For HIV, the antibodies are very specific and are generated too slowly to combat the rapidly changing virus. However, scientists have found that some HIV-positive people develop highly potent antibodies that can neutralize different subtypes of the virus. Now, a study involving Caltech researchers points to the possibility of using these neutralizing antibodies in the development of a vaccine.
Submitted by ksvitil on Wed, 2011-07-13 07:00
The power output of wind farms can be increased by an order of magnitude—at least tenfold—simply by optimizing the placement of turbines on a given plot of land, say researchers at the California Institute of Technology (Caltech) who have been conducting a unique field study at an experimental two-acre wind farm in northern Los Angeles County.
Submitted by katien on Mon, 2011-07-11 07:00
The landing site for Curiosity, the next Mars rover, has been narrowed down to two choices. Curiosity will either explore Eberswalde crater, an ancient river delta, or Gale crater, the home of a three-mile high mountain.
Submitted by admin on Thu, 2011-07-07 07:00
For biochemist and chemical engineer Frances Arnold, the road to success has not been straight and narrow. In fact, she has often bucked the academic tradition of rigorous, time-consuming pre-experiment methodology for a more fast and furious approach to research.
Submitted by cnk on Tue, 2011-07-05 07:00
Figuring a virus's host is can be difficult, especially when you're talking about bacteriophages, a group of bacteria-infecting viruses. The problem lies in identifying which bacteriophages are infecting which bacteria, without having to culture either the viruses or their hosts in the lab. Now, a Caltech-led team has created a technique that can "physically link single bacterial cells harvested from a natural environment with a viral marker genes," the scientists report in the July 1 issue of the journal Science.
Submitted by admin on Tue, 2011-06-28 07:00
Ever since a crash landing on Earth grounded NASA's Genesis mission in 2004, scientists have been gathering, cleaning, and analyzing solar wind particles collected by the spacecraft. Now, two new studies published in Science reveal that Earth's chemistry is less like the sun's than previously thought.
Submitted by katien on Mon, 2011-06-27 07:00
Like the faces of veterans comparing war wounds, the surface of our moon is scarred by a lifetime of damage—impact craters pockmarked with even more craters, sprayed ejecta, discolored regions laid down by volcanic flows. Studying these characteristics can reveal much about the processes that formed them, say Caltech graduate student Meg Rosenburg and her advisor Oded Aharonson, who have created the first comprehensive sets of maps revealing the roughness of the moon's surface.
Submitted by mwoo on Thu, 2011-06-23 18:00
Were dinosaurs slow and lumbering, or quick and agile? It depends largely on whether they were cold or warm blooded. Now, a team of researchers led by Caltech has developed a new approach to take body temperatures of dinosaurs for the first time, providing new insights into whether dinosaurs were cold or warm blooded.
Submitted by mwoo on Wed, 2011-06-08 17:00
They're bright and blue—and a bit strange. They're a new type of stellar explosion that was recently discovered by a team of astronomers led by the California Institute of Technology (Caltech). Among the most luminous in the cosmos, these new kinds of supernovae could help researchers better understand star formation, distant galaxies, and what the early universe might have been like.
Submitted by katien on Mon, 2011-06-06 07:00
When geologists survey an area of land for the potential that gas or petroleum deposits could exist there, they must take into account the composition of rocks that lie below the surface. Previous research had suggested that compaction bands might act as barriers to the flow of oil or gas. Now, researchers led by José Andrade have analyzed X-ray images of Aztec sandstone and revealed that compaction bands are actually more permeable than earlier models indicated.