Both humans and many other creatures need oxygen for survival. In the conversion of nutrients into energy, oxygen is converted to water, for which the enzyme oxidase is responsible. It represents the last step of the so-called ...
Cell & Microbiology
Nov 14, 2019
0
112
Axeheads made out of Alpine rock had strong social and economic symbolic meaning in the Neolithic, given their production and use value. Their resistance to friction and breakage, which permitted intense polishing and a re-elaboration ...
Archaeology
Nov 14, 2019
0
20
Some molecules can exist in two mirror-image forms, similar to our hands. Although such so-called enantiomers have almost identical physical properties, they are not the same. The fact that they behave to each other like ...
Materials Science
Nov 14, 2019
0
51
These days it's easy to resolve questions about paternity with over-the-counter test kits. Now, researchers have put DNA evidence together with long-term genealogical data to explore similar questions of biological fatherhood ...
Evolution
Nov 14, 2019
0
226
In an effort to reverse the decline in the health of the world's oceans, the United Nations (UN) has declared 2021 to 2030 to be the Decade of Ocean Science for Sustainable Development. One key requirement for the scientific ...
Earth Sciences
Nov 14, 2019
0
34
An international team of scientists working with Heliconius butterflies at the Smithsonian Tropical Research Institute (STRI) in Panama was faced with a mystery: How do pairs of unrelated butterflies from Peru to Costa Rica ...
Evolution
Nov 14, 2019
1
39
Scientists have simulated every atom of a light-harvesting structure in a photosynthetic bacterium that generates energy for the organism. The simulated organelle behaves just like its counterpart in nature, the researchers ...
Biotechnology
Nov 14, 2019
1
770
Natural genetic engineering allowed plants to move from water to land, according to a new study by an international group of scientists from Canada, China, France, Germany, and Russia.
Biotechnology
Nov 14, 2019
0
967
Despite great efforts in medicine and science, more than 400,000 people worldwide are still dying of malaria. The infectious disease is transmitted by the bite of mosquitoes infected with the malaria parasite Plasmodium. ...
Biotechnology
Nov 14, 2019
0
100
The world's oldest captive white rhino, South African-born Sana, has died at the age of 55, the French zoo that she called home for the last 26 years said Thursday.
Plants & Animals
Nov 14, 2019
0
5
