Studying fruit flies, whose sleep is remarkably similar to that in people, Johns Hopkins researchers say they've identified brain cells that are responsible for why delaying bedtime creates chronic sleepiness.
Cell & Microbiology
May 19, 2016
0
213
To make a good framework for filling in missing bone, mix at least 30 percent pulverized natural bone with some special man-made plastic and create the needed shape with a 3-D printer. That's the recipe for success reported ...
Materials Science
May 4, 2016
0
23
Fifty-six million years ago, just before earth's carbon dioxide levels and average temperatures soared, many species of primitive primates went extinct in North America for reasons unclear to scientists. Now, a study of fossilized ...
Archaeology
Mar 8, 2016
1
283
While working to improve a tool that measures the pushes and pulls sensed by proteins in living cells, biophysicists at Johns Hopkins say they've discovered one reason spiders' silk is so elastic: Pieces of the silk's protein ...
Nanomaterials
Feb 15, 2016
0
320
During an animal's embryonic development, a chemical chain reaction known as Hippo directs organs to grow to just the right size and no larger. Now Johns Hopkins researchers working with laboratory flies report that this ...
Cell & Microbiology
Jan 28, 2016
0
7
Biophysicists have discovered why the bacteria that cause tuberculosis (TB) are naturally somewhat resistant to antibiotics known as fluoroquinolones. Their findings, based on mapping the detailed three-dimensional structure ...
Biochemistry
Jan 18, 2016
3
769
Fruit fly windpipes are much more like human blood vessels than the entryway to human lungs. To create that intricate network, fly embryonic cells must sprout "fingers" and crawl into place. Now researchers at The Johns Hopkins ...
Cell & Microbiology
Nov 25, 2015
0
4
Before the fluid of the middle ear drains and sound waves penetrate for the first time, the inner ear cells of newborn rodents practice for their big debut. Researchers at Johns Hopkins report they have figured out the molecular ...
Cell & Microbiology
Nov 25, 2015
0
8
Johns Hopkins researchers report that a new study of mouse cells has revealed reasons why attempts to grow stem cells to maturity in the laboratory often fail, and provided a possible way to overcome such "developmental arrest."
Cell & Microbiology
Nov 12, 2015
0
30
In what they say was a lucky and unexpected finding, researchers at Johns Hopkins say they've discovered that male fruit flies lay down an odorant, or pheromone, that not only attracts females to lay eggs nearby, but also ...
Plants & Animals
Oct 12, 2015
0
31
