A team of researchers from the Universitat Autònoma de Barcelona, together with researchers from ICMAB (CSIC) and other Russian and Ukrainian scientists, have discovered an unprecedented method for accurately controlling the formation of nanometric structures made of semiconducting material in the form of islets, using promising optoelectronic applications in the most advanced communication technology. The discovery was featured as a cover story by the prestigious Nanotechnology magazine.
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Coniferous trees are widespread in Russia, especially in Siberia, where taiga extends over tens of millions of hectares. Cedars and pines grow also in the environs of cities and in city parks and suffer from human-induced changes in environment.
Of course, coniferous trees can withstand a low-level pollution. Acid gases or soil pollutants that trees absorb are actively transported and deposited in those parts of wood, which do not perform important functions, and some elements are re
A revolutionary method for detecting which human embryos are most likely to develop successfully to the stage at which they implant in the womb has been developed by scientists at the University of York and clinicians at Leeds General Infirmary.
The research has been funded by the Medical Research Council.
The discovery, if confirmed in clinical trials, could bring new hope for many couples undergoing fertility treatment since current failure rates are high. One of the problems is that e
Psychologists have found that colors enhance an individuals visual memory. From a series of experiments, researchers learned that subjects were more likely to recall the color version of an image than the same scene in black and white. The results, which appear in the May issue of the journal Experimental Psychology: Learning, Memory and Cognition, also indicate that natural colors make a difference. A photo of a landscape with a green sky, for example, will not lodge as effectively in the brai
Conditions in space are unlike anything we experience on Earth. Incredible extremes of temperature that can switch in an instant, startling vacuum conditions, not to mention radiation – it`s a tough life for a spacecraft. So it is essential to make sure they are prepared to withstand these conditions before they are launched into this wholly unfriendly environment.
For instance, in a vacuum, heat cannot be conducted as it is here on Earth. A spacecraft that is being heated by the Sun`s rays
Roughly 15 billion years ago, during the Big Bang, equal amounts of matter and anti-matter should have been created, with an anti-particle for every particle created. Yet when matter and anti-matter meet, they both disappear in a flash of light, so why didn’t they annihilate each other completely? For some reason, during the first moments of the Big Bang, although lots of matter and anti-matter did meet and annihilate, we were left with a slight surplus of matter, which makes up the Universe today. W