In late summer last year my doctor prescribed a monthlong course of antibiotics for an infection. Medicines like antibiotics are great at wiping out bacterial infections. The problems is that these drugs don’t differentiate between eliminating the “good” bacteria that may benefit our health and the “bad” bacteria causing infection. I was absolutely miserable and […]
In the quantum theory of many-body systems, collective oscillations are called collective excitations. In a quantum context, everything is quantized. Hence, collective excitations become quantized modes because of the cooperative motion of the whole system as a result of interactions between particles. They may be electronic excitations in atoms and are referred excitons. In most […]
Myelin is a lipid-rich substance that surrounds the axons of the neurons, which would be like the “wires” of the nervous system. This fatty structure serves to insulate the axons and to increase the speed with which electrical impulses, the so-called action potentials, pass along the axon. The myelinated axon can be compared to an […]
Sugar has been in the spotlight for a while, it being the most likely culprit of the obesity epidemic of our time. As to how is that possible, many consider that it is because it leads to an addiction, with sugar acting as the sweet sweet drug driving our wants and needs. A new study […]
Superconductivity is a physical phenomenon in which some materials exhibit zero electrical resistance when cooled down below a certain critical temperature. As surprising as it can be, the critical temperature of these materials can be modified by reducing the sample size to about a million times the size of the objects we are used to […]
Dip. Di Chemica, Università di Torino, via P. Giuria 7, 10125, Torino, Italy * adrian.matencioduran@unito.it The last articles of one of us (Matencio) [1,2,3,4] were about the different uses of a complexing agent called cyclodextrin (CD), a torus-shaped oligosaccharide made up of α-(1,4) linked glucose units, the most common CDs being α, β and γ-CD […]
One of the greatest inventions of the 20th century, if not the greatest, was the transistor. It revolutionized the electronics industry and changed the way people around the world lived, learned, worked, and played. Its invention marked the beginning of solid state electronics which quickly reduced the size and power requirements of existing electronic tube […]
Species distribution models (SDM) are computer algorithms that relate species distribution, occurrence or abundance, with information on environmental conditions and spatial characteristics of locations where the species has been, or is suspected to be, found. These models can be used to predict or to have a better understanding of the species distribution, and are widely […]
Chemistry • Condensed matter • Materials • Nanotechnology • Quantum physics
Usually, optical activity is understood as the ability some substances have to change the handedness of polarized light when it goes through them. Molecules that show optical activity have no plane of symmetry. The commonest case of this is in organic compounds in which a carbon atom is linked to four different groups. An atom […]
We all know exercise is important to be healthy, every doctor in the world would tell you so. Now, new research in the journal Nature Communications , we also know who to thank for. Sestrins, a protein family has been linked to the health benefits of exercise. Sestrins improve physical performance It was previously known […]