Grain boundaries are widely distributed in metallic crystals and have important impacts on their mechanical properties. Among them, high-angle grain boundaries (HAGBs) can strengthen metallic materials, but the stress concentration ...
Analytical Chemistry
Sep 26, 2022
0
19
A new study describes the formation of the body axis in the immortal freshwater polyp Hydra. It is controlled by the so-called Hippo signaling pathway, a molecular biological process that, among other functions, ensures that ...
Cell & Microbiology
Jul 15, 2022
0
69
This feature could easily be mistaken for a tree stump with characteristic concentric rings. It's actually an impressive birds-eye view into an ice-rich impact crater on Mars. Tree rings provide snapshots of Earth's past ...
Space Exploration
Jan 28, 2022
0
77
The formation of the dorsal-ventral (DV) axis is one of the most important events during the early development of bilaterian animals. It is widely accepted that a conserved molecular logic (BMP2/4 and Chordin) regulates tissue ...
Evolution
Dec 28, 2021
0
101
Vortices may conjure a mental image of whirlpools and tornadoes—spinning bodies of water and air—but they can also exist on much smaller scales. In a new study published in Science, researchers from the Weizmann Institute ...
General Physics
Nov 30, 2021
0
516
Using the powerful 570-megapixel Dark Energy Camera (DECam) in Chile, astronomers just ten days ago discovered an asteroid with the shortest orbital period of any known asteroid in the Solar System. The orbit of the approximately ...
Astronomy
Aug 23, 2021
1
980
Body axes are molecular coordinate systems along which regulatory genes are activated. These genes then activate the development of anatomical structures in correct locations in the embryo. Thus, the body ensures that we ...
Evolution
Jun 29, 2021
0
13
Certain signaling proteins, which are responsible for the development of innate immune function in almost all animals are also required for the formation of the dorsal-ventral (back-belly) axis in insect embryos. A new study ...
Plants & Animals
Apr 21, 2021
0
5
Two scientists from CNRS and Sorbonne University working at the Institute of Celestial Mechanics and Ephemeris Calculation (Paris Observatory—PSL/CNRS) have just shown that the influence of Saturn's satellites can explain ...
Astronomy
Jan 20, 2021
0
590
A combined team of researchers from the Jet Propulsion Laboratory, California Institute of Technology and the Royal Observatory of Belgium, has found evidence that Mars has a Chandler wobble. In their paper published in the ...
