Symbiosis is a close relationship between two organisms that benefits both of them. Many different types of symbiotic processes exist in nature, some of them are very famous like the symbiosis between clownfish (like Nemo from the film) with sea anemone or for example lichens which consist in a symbiotic relationship between a fungus and […]
Thermodynamics is one of the oldest and more fruitful fields of science. Quantum mechanics, on the other hand, is less than one hundred years old, but it is also useful and well accepted. They can look very different. Thermodynamics treats with macroscopic systems, composed by an Avogadro number (6.023×1023) of atoms or molecules, and quantum […]
Humanities & Social Sciences • Science • Technology • Weekly Selection
Your molar roots are leftovers from Homo erectus Adult human molar roots form for at least a year before erupting from the gum line, according to research published in the journal PLoS ONE. Researchers say the majority of the formation of teeth has evolved to keep up with longer human lifespans, except for the adult […]
It is interesting how some ideas get stuck in our minds even long after it is proved that they are incorrect or incomplete. Haeckel’s Recapitulation Theory, which states that during the embryological development of an organism it undergoes through different stages recalling the evolutionary history of its ancestors (ontogeny recapitulates phylogeny), is considered obsolete nowadays […]
The term “midlife crisis” was coined in 1965 by psychologist Elliot Jacques. In our collective imaginary we believe that it refers to a time in life when adults realize that their life is halfway over, that they may not have achieved all the aspirations or dreams developed during youth, and they come to admit the […]
Proteins are sophisticated machines that perform most of our cellular activities. Proteins are codified in the cellular DNA and synthesized as linear chains that need to get properly folded in a 3D structure to become functional. This state is named native structure. Several perturbations can challenge the native structure of the proteins converting them into […]
Smell has often been the neglected sense, despite—or, hopefully, until—the increasing number of interesting discoveries being made about and around it. Trivially, smells are interpreted as a series of neurochemical reactions mediated by receptors; this is no novelty, and at the single-molecule and single-neuron level the mechanism (how a molecule triggers a specific receptor which […]
Humanities & Social Sciences • Science • Technology • Weekly Selection
Could Earth be constantly crashing through dark matter? Scientists are looking to new techniques to search for evidence that the Earth is constantly breaking through walls of dark matter. Researchers are acting on a theory that dark matter, made up of weakly interacting massive particles, are tied up in domain walls, which they liken to […]
Think about yourself for a second: how did you react to the epidemic of the avian or the swine flu (H1N1) a couple of years ago? Did you go through special cares or measures in order to avoid the infection? Did you even really consider changing your everyday habits because of the fear and panic […]
Neurons are known to display irregular behavior in many areas of the brain. When recording the evolution of the membrane potential of a given neuron in the prefrontal cortex (for instance, during in vivo electrophysiology), we can observe its erratic dynamics, with spikes occurring in a random and rather unpredictable fashion. This one and other […]