A study at the University of Pennsylvania School of Veterinary Medicine has identified the function of one of the earliest antibodies in the animal kingdom, an ancient immunoglobulin that helps explain the evolution of human ...
Ecology
Aug 10, 2010
0
0
(Phys.org) —Cosmologists have established that much of the stuff of the universe is made of dark matter, a mysterious, invisible substance that can't be directly detected but which exerts a gravitational pull on surrounding ...
Astronomy
Apr 17, 2014
20
1
Photonic chips have revolutionized data-heavy technologies. On their own or in concert with traditional electronic circuits, these laser-powered devices send and process information at the speed of light, making them a promising ...
Optics & Photonics
May 1, 2023
0
228
Toxoplasma gondii is best known as the parasite that may lurk in a cat's litter box. Nearly a third of the world's population is believed to live with a chronic Toxoplasma infection. It's of greatest concern, however, to ...
Cell & Microbiology
Jan 24, 2020
4
345
Most of the time, a material's color stems from its chemical properties. Different atoms and molecules absorb different wavelengths of light; the remaining wavelengths are the "intrinsic colors" that we perceive when they ...
Nanomaterials
Aug 13, 2020
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202
Astronomers have been waiting decades for the launch of the James Webb Space Telescope, which promises to peer farther into space than ever before. But if humans want to actually reach our nearest stellar neighbor, they will ...
Nanomaterials
Feb 16, 2022
1
469
The field of metamaterials has produced structures with unprecedented abilities, including flat lenses, invisibility cloaks and even optical "metatronic" devices that can manipulate light in the way electronic circuitry manipulates ...
General Physics
Jan 9, 2014
0
0
If you were about to enter a crowded subway during flu season, packed with people sneezing and coughing, wouldn't it be helpful if your immune system recognized the potentially risky situation and bolstered its defenses upon ...
Cell & Microbiology
Feb 7, 2015
8
987
(Phys.org) —A dye-based imaging technique known as two-photon microscopy can produce pictures of active neural structures in much finer detail than functional magnetic resonance imaging, or fMRI, but it requires powerful ...
Bio & Medicine
Apr 21, 2013
2
0
Many long for a return to a post-pandemic "normal," which, for some, may entail concerts, travel, and large gatherings. But how to keep safe amid these potential public health risks?
Cell & Microbiology
Apr 15, 2021
0
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