From veins that deliver oxygen to tissues to xylem that send water into stems and leaves, vascular networks are a crucial component of life. In biology, there is a wide range of unique patterns, like the individualized structures ...
General Physics
Jan 17, 2020
1
383
Fuel cells and batteries provide electricity by generating and coaxing positively charged ions from a positive to a negative terminal which frees negatively charged electrons to power cellphones, cars, satellites, or whatever ...
Materials Science
May 31, 2018
0
287
Since the beginning of journalism in America, newspapers have been funded by advertising. In the 18th century, alongside advertisements for shoe repair, corduroys, and cutlery, colonial newspapers sold and ran ads for enslaved ...
Social Sciences
Apr 28, 2023
0
254
(Phys.org)—One of nanotechnology's greatest promises is interacting with the biological world the way our own cells do, but current biosensors must be tailor-made to detect the presence of one type of protein, the identity ...
Nanomaterials
Jan 14, 2015
0
1367
Topological insulators are a game-changing class of materials; charged particles can flow freely on their edges and route themselves around defects, but can't pass through their interiors. This perfect surface conduction ...
General Physics
Sep 13, 2019
0
375
In the age of social media, people's inner lives are increasingly recorded through the language they use online. With this in mind, an interdisciplinary group of University of Pennsylvania researchers is interested in whether ...
Computer Sciences
Sep 26, 2013
0
0
Many imaging technologies and their contrast agents — chemicals used during scans to help detect tumors and other problems — involve exposure to radiation or heavy metals, which present potential health risks to ...
Bio & Medicine
Dec 23, 2011
1
0
Graphene, a single-atom-thick lattice of carbon atoms, is often touted as a replacement for silicon in electronic devices due to its extremely high conductivity and unbeatable thinness. But graphene is not the only two-dimensional ...
Nanomaterials
Feb 17, 2015
2
494
It's been 47 years since Philadelphians filled Fairmount Park for the first Earth Day here, led by a group of University of Pennsylvania students. This year, amidst the day's celebrations and other collective observances ...
Ecology
Apr 21, 2017
2
315
(PhysOrg.com) -- Physicists super-cooled a liquid into glass in order to observe the slowing of particles. It's a material that still perplexes researchers despite thousands of years of household and industrial use.
Condensed Matter
Sep 19, 2009
1
0
