High-speed images of a common laser-based metal 3-D printing process, coupled with newly updated computer models, have revealed the mechanisms behind material redistribution, a phenomenon that leads to defects in printed ...
Engineering
Aug 2, 2017
2
145
Clusters of hunter-gatherers spent much of the late Stone Age working out the basics of farming on the fertile lands of what is now Turkey before taking this knowledge to Europe. In an analysis of ancient genomes published ...
Archaeology
Aug 4, 2016
0
138
Promiscuity mixes up the gene pool and dilutes genetic differences between populations, slowing down the evolution of new species, says new research by an international team led by the University of Bath's Milner Centre for ...
Evolution
Apr 10, 2017
0
241
As the last continents to be settled by humans, the question of how and when people first came to the Americas has long intrigued scientists.
Archaeology
May 13, 2023
0
28
A team of Australian scientists has bred salt tolerance into a variety of durum wheat that shows improved grain yield by 25% on salty soils.
Biotechnology
Mar 11, 2012
0
0
Sexual reproduction is costly to those organisms that depend on it, like humans. For starters, only half of the population can bear offspring and the other half has to work hard to make sure they're included in the future ...
Cell & Microbiology
Jul 9, 2013
0
0
(Phys.org)—A team of researchers from New Zealand and Australia has found that cultural exchange in human populations sometimes occurs at a much slower rate than genetic divergence. As the group explains in their paper ...
The amount of structural damage that radiation causes in electronic materials at the atomic level may be at least ten times greater than previously thought.
General Physics
Jul 20, 2012
1
0
In the battle of the sexes, males appear to have the innovative edge—from a genetic standpoint, at least. Scientists are finding that the testes are more than mere factories for sperm; these organs also serve as hotspots ...
Evolution
Aug 16, 2019
28
135
Up to ten per cent of the active genes of an organism that has survived 80 million years without sex are foreign, a new study from the University of Cambridge and Imperial College London reveals. The asexual organism, the ...
Biotechnology
Nov 15, 2012
3
3
