An international team of astrophysicists, astronomers and chemists has found evidence of carbonic acid (HOCOOH) in interstellar space, marking the first time it has been detected in such a setting. In their paper published ...
Coronary arteries are a vital part of the human heart, providing it with oxygen-rich blood so that it can work. By comparing the hearts of mammals, birds, reptiles, fish and frogs, a multi-institutional team of researchers ...
Evolution
Aug 22, 2023
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9
Human missions to Mars will require a substantial launch vehicle to ascend from Mars to rendezvous with a waiting Earth return vehicle in Mars orbit. For an ascending crew of 6, the current best estimate of oxygen propellants ...
Space Exploration
Aug 17, 2023
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17
Researchers led by Genshiro Sunagawa at the RIKEN Center for Biosystems Dynamics Research (BDR) in Japan have shown that an animal's stem cells possess the same level of cold resistance as the animal itself.
Plants & Animals
Aug 17, 2023
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1
In antibacterial photodynamic therapy, irradiation is used to produce reactive oxygen species that kill off bacteria. Because it requires external light and oxygen, this method is only suitable for surface infections.
Bio & Medicine
Aug 16, 2023
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3
Researchers at the University of Bayreuth, together with partners in China and the U.S., have produced an oxide glass with unprecedented toughness. Under high pressures and temperatures, they succeeded in paracrystallizing ...
Materials Science
Aug 14, 2023
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137
Iron is well-known for rusting, but this doesn't just happen on contact with oxygen and water. Some bacteria are also able to decompose iron anaerobically in a process referred to as electrobiocorrosion.
Materials Science
Aug 14, 2023
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190
There is a global water crisis, and it is not only about the dwindling supply of clean water. Contaminated drinking water exposes hundreds of millions of people worldwide to toxins, such as bacteria, heavy metals, pesticides ...
Analytical Chemistry
Aug 10, 2023
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18
Double fertilization is a complex mechanism in flowering plants, wherein two sperm cells fuse with the embryo sac. To achieve this, pollens released from anthers must interact with the plant's stigma, hydrate, and germinate ...
Molecular & Computational biology
Aug 10, 2023
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1
Mountain ranges play a key role in global climate, altering weather and shaping the flora and fauna that inhabit their slopes and the valleys below. As warm air rises windward grades and cools, moisture condenses into rain ...
Earth Sciences
Aug 10, 2023
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