Meiotic recombination assures genetic variation during breeding. During meiotic prophase I, chromosomes are organized in a loop-base array by a proteinaceous structure called meiotic chromosome axis, which is critical for ...
Plants & Animals
Mar 13, 2023
0
7
Researchers have observed steric effects—the interactions of molecules depending on their spatial orientation (not just between their electrons involved in bonding)—in a chemical reaction involving non-polar molecules ...
Analytical Chemistry
Jan 12, 2023
0
48
Interactions between a spinning object and soundwaves could help develop high-precision tools, such as tweezers that control the motion and position of submillimeter objects by manipulating acoustic waves, a KAUST-led international ...
General Physics
Dec 13, 2022
0
2
Using the Nanshan One-meter Wide-field Telescope (NOWT), Chinese astronomers have performed multi-color photometric observations of a rapidly rotating magnetic star known as HD 345439. Results of this observational campaign, ...
The alignment between galaxy spins and the large-scale structure of the universe reveals the processes by which different components of galaxies form.
Astronomy
Oct 4, 2022
159
192
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
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