Category Archives: Science

For centuries, metals were employed in optical applications only as mirrors and gratings. New vistas opened up in the late 1970s and early 1980s with the discovery of surface-enhanced Raman scattering (SERS) and the use of surface plasmon (collective electronic […]

The cicadas are part of the soundtrack of summer. Their calls, especially if a large number of animals is gathered, can form an impressive concert. They are part of the hemiptera, the order of aphids and bedbugs, but they do […]

Elements with 4f or 5f electrons in unfilled electron bands and their componuds , which have ions carrying magnetic moments but do not magnetically order, or only do so at very low temperatures, are generally known as heavy-fermion or heavy […]

Autism spectrum disorders (ASD) have among their diagnostic characteristics problems for communication and social interaction. The typical example is the difficulty to understand the facial expressions or the body language of other people, but in addition to these aspects mediated […]

We all know what an insulator is, don’t we? An insulator is any substance that is a poor conductor of heat and electricity. Both properties ussually occur as a consequence of a lack of mobile electrons.If we want to dive […]

A preterm baby is one that is born prematurely, a minimum of three weeks before the expected date of delivery or, in other words, before the 37th week of pregnancy. Premature babies, especially extreme premature babies, have a high risk […]

Author: Martha Villabona works at Centro Nacional de Innovación e Investigación Educativa (CNIIE) of the Spanish Ministry of Education and Vocational Training, where she coordinates the area of multiple literacies.

Aristotle defined (fair) outrage as the pain that […]

For a successful application in spintronics of any material, a key problem is to get a reliable control of the electronic spin within it. An ideal candidate for this purpose would be any material which is non-magnetic in the bulk […]

One thing is designing an object in a computer, and another, quite different, is producing it as a real 3D object. All other things being equal, in general the more curves the designed object has, the more difficult it is […]

If a nucleus has a nonzero spin, it behaves as a small magnet. Therefore, in an external magnetic field, the nuclear magnetic moment vector precesses about the field direction but only certain otientations are allowed by quantum rules. Thus, for […]