Channels that line the tail of sperm contain pores that allow the entry of calcium, which fuels their journey to the female reproductive tract.
Cell & Microbiology
Jun 30, 2022
0
88
Room-temperature superconductors could transform everything from electrical grids to particle accelerators to computers, but researchers are still trying to understand how these materials function on the atomic level.
Superconductivity
Jun 14, 2022
0
83
The library of two-dimensional (2D) layered materials keeps growing, from basic 2D materials to metal chalcogenides. Unlike their bulk counterparts, 2D layered materials possess novel features that offer great potential in ...
Nanomaterials
Jun 07, 2022
0
14
An intermediate layer consisting of a few atoms is helping to improve the transport of spin currents from one material to another. Until now, this process involves significant losses. A team from Martin Luther University ...
Nanophysics
May 10, 2022
0
179
A dash of ruthenium atoms on a mesh of copper nanowires could be one step toward a revolution in the global ammonia industry that also helps the environment.
Nanomaterials
May 02, 2022
0
696
In work that could usher in more efficient, eco-friendly processes for the production of important metals like lithium, iron and cobalt, researchers from MIT and SLAC have mapped what is happening at the atomic level behind ...
Materials Science
Apr 28, 2022
3
395
Scientists want to increase their understanding of circadian rhythms, those internal 24-hour biological clock cycles of sleeping and waking that occur in organisms, ranging from humans to plants to fungi to bacteria. A research ...
Molecular & Computational biology
Apr 15, 2022
0
17
A recent study by researchers from the Chinese Academy of Sciences redefines how liquids maintain their contact with solid surfaces—also known as wettability—from an intermolecular force perspective.
Nanophysics
Apr 08, 2022
0
33
Researchers from the Belgorod State University (BSU) and the Skolkovo Institute of Science and Technology (Skoltech) studied aluminum alloys at the atomic level and found patterns that will help improve their structure. The ...
Materials Science
Mar 24, 2022
1
7
Metallic materials used in engineering must be strong and ductile—capable of carrying high mechanical loads while able to withstand deformation without breaking. Whether a material is weak or strong, ductile or brittle, ...
Materials Science
Mar 22, 2022
0
16
In quantum mechanics, perturbation theory is a set of approximation schemes directly related to mathematical perturbation for describing a complicated quantum system in terms of a simpler one. The idea is to start with a simple system for which a mathematical solution is known, and add an additional "perturbing" Hamiltonian representing a weak disturbance to the system. If the disturbance is not too large, the various physical quantities associated with the perturbed system (e.g. its energy levels and eigenstates) can, from considerations of continuity, be expressed as 'corrections' to those of the simple system. These corrections, being 'small' compared to the size of the quantities themselves, can be calculated using approximate methods such as asymptotic series. We can therefore study the complicated system based on our knowledge of the simpler one.
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