As life propagated across Earth in the form of the widest variety of single-celled organisms, sometime between 3.5 and 1 billion years ago one such organism managed an evolutionary coup: Instead of devouring and digesting ...
Cell & Microbiology
Jul 28, 2023
0
35
In all living organisms, the biomolecule transfer RNA (tRNA) plays a fundamental role in protein production. tRNAs are generated from precursor molecules in several steps. The enzyme tRNA splicing endonuclease (TSEN), among ...
Biotechnology
Jul 13, 2023
0
5
A tangle of pockets, tubes and sac-like membrane structures runs through the cells of humans, animals, plants and fungi—the endoplasmic reticulum, or ER for short. In the ER, proteins are manufactured, folded into their ...
Cell & Microbiology
May 26, 2023
0
8
An international research team led by Goethe University Frankfurt, Germany, determined that Troodon, a dinosaur very close to modern birds, was a warm-blooded animal (an endotherm), but had a reproductive system similar to ...
Evolution
Apr 3, 2023
0
1124
Countless meteorites have struck Earth in the past and shaped the history of our planet. It is assumed, for example, that meteorites brought with them a large part of its water. The extinction of the dinosaurs might also ...
Planetary Sciences
Feb 22, 2023
0
576
Without regulations for their use, the condition of freely accessible resources such as fish stocks, water or air can deteriorate dramatically. In economics, this is referred to as the "Tragedy of the Commons." In 2009, Elinor ...
Mathematics
Feb 8, 2023
0
34
If you take a magnifying glass and a flashlight and look at your teeth very carefully in the mirror, in places you can spot a pattern of fine, parallel lines running across your teeth. These correspond to the striae of Retzius ...
Archaeology
Jan 16, 2023
0
121
Ultrafine particles form during combustion processes, for example, when wood or biomass is burned, as well as in power-generating and industrial processes. Alongside road traffic, large airports are a major source of these ...
Earth Sciences
Jan 9, 2023
1
150
So far, little is known about the interior of neutron stars, those extremely compact objects that can form after the death of a star. The mass of our sun or even more is compressed into a sphere with the diameter of a large ...
Astronomy
Nov 15, 2022
71
681
With the exception of black holes, neutron stars are the densest objects in the universe. As their name suggests, neutron stars are mainly made of neutrons. However, our knowledge about the matter produced during the collision ...
General Physics
Nov 1, 2022
137
638
