Supporting instructors of massive open online courses—MOOCs—may be just as important to the creation of long-term, successful courses as attracting and supporting students, according to a group of researchers.
Social Sciences
Feb 29, 2016
0
8
Carbon tetrachloride (CCl4) was once commonly used as a cleaning agent and remains an important compound in chemical industry. CCl4 is responsible for that sickly sweet smell associated with dry cleaning solvents from decades ...
Environment
Feb 29, 2016
1
531
Imagine you wanted to know how much energy it took to bike up a mountain, but couldn't finish the ride to the peak yourself. So, to get the total energy required, you and a team of friends strap energy meters to your bikes ...
Medical research
Feb 29, 2016
0
226
A squid has more in common with a spider than you may think. The razor-sharp 'teeth' that ring the suckers found on some squid tentacles are made up entirely of proteins remarkably similar—and in some ways superior—to ...
Materials Science
Feb 29, 2016
0
197
Apple wants a "conversation" to help settle a standoff with US law enforcement over accessing an encrypted iPhone, according to testimony prepared for a congressional hearing.
Security
Feb 29, 2016
2
9
NASA scientists are closer to solving the mystery of how Mars' moon Phobos formed.
Space Exploration
Feb 29, 2016
3
206
Romanian police have seized gold coins and a treasure trove of statues which are over 2,000 years old allegedly stolen from archaeological sites and destined for auction, prosecutors said Monday.
Archaeology
Feb 29, 2016
0
15
The U.S. Fish and Wildlife Service followed the law when it designated more than 187,000 square miles—an area larger than California—as critical habitat for threatened polar bears in Alaska marine waters and its northern ...
Ecology
Feb 29, 2016
0
14
DNA is made from four nucleosides, each known by its own letter—A, G, C, and T. However, since the structure of DNA was deciphered in 1953, scientists have discovered several other variants that are often added to the DNA ...
Cell & Microbiology
Feb 29, 2016
0
785
If you suffer from atrial fibrillation (AF)—a condition where disorganized electrical signals cause the heart's upper chambers to contract quickly and irregularly—your doctor may prescribe an antiarrhythmic drug. While ...
Cell & Microbiology
Feb 29, 2016
0
11
