There are chemical compounds, called isomers, that have the same molecular formulae but different molecular structures or different arrangements of atoms in space. In constitutional isomerism the molecules have different molecular structures: i.e., they may be different types of compound, or they may simply differ in the position of the functional group in the molecule […]
Chronic pain is one of the most common problems of advanced age. Even though the combination of physical therapy and analgesics such as nonsteroidal anti-inflammatory drugs is effective in chronic pain treatments, it only confers short-term benefits. On the other hand, it could be quite expensive and may have significant adverse side effects. Effective, lasting […]
Many people think of their brain as a computer full of microchips and wires, as a storehouse full of memories and learned things, as a clock with millions of mechanisms intimately intertwined with each other, so it is incredible to think that someone can live with much less than that, with only one brain hemisphere […]
Condensed matter • Materials • Physics • Theoretical physics
The interactions between moving charges and magnetic fields can be quite complicated; more if we consider the quantum effects. One example is the collection of Hall effects. Imagine that we have a conductor or a semiconductor through which a current is flowing. Then we apply a strong transverse magnetic field. As a result, we can […]
I n a 2017 interview, the famous actress Kate Walsh – whom you may know from the TV show Grey’s anatomy – reported the following: “ I started having more cognitive difficulties. It felt like aphasia [language problems] , but it was not just not being able to find words; I would lose my train […]
Some people with autism do not get used to certain stimuli as normotypical people seem to do without problem. This would fit in with what in neuroscience, particularly in learning and memory issues, is called habituation. Habituation is a process by which, when faced with a repeated stimulus, the response is less and less intense […]
Proteins can perform a huge number of biological functions with amazing efficiency. In order to achieve these different functions, proteins rely on the precise 3D arrangement of functional groups which are referred to as the protein fold. Some of these functions include acting as a catalyst in biochemical reactions; in these cases proteins are called […]
For a long time Alzheimer disease has been studied mostly as a neuronal disease. However, recently the role of the immune system is getting more attention and its involvement more clear. Recent research has shown that a subpopulation of T cells could be key to early Alzheimer’s detection. How were these T cells discovered? Firstly […]
Achieving room temperature superconductivity is among the most pursued but elusive goals of scientists. I n December 2014 researchers claimed to have observed superconductivity as high as 200 K in hydrogen sulfide at high pressure, breaking all the records thus far. This meant that cuprates could be knocked from their position as the highest temperature […]
The relationship between siblings is, for most people, the longest they will ever enjoy. It is fundamental for many of us, but especially for children, who live together regularly with their brother or sister, and where the fraternal relationship is part of daily life, of play and leisure, of learning basic skills, of emotional development […]