Category Archives: Science
What does the “we don’t understand how artificial intelligence takes decisions” statement mean?
Specialized media sometimes publishes similar headlines to the title of the present article. For instance 1, 2, 3, 4, 5 or 6. They are all referred to deep learning, which is a part of artificial […]
One year or one cell division older?
Author: Gerardo Ferrer got his Ph.D. in Medicine from the University of Barcelona in 2012. Currently, he is a postdoctoral researcher at the Karches Center for Chronic Lymphocytic Leukemia Research and Center for Oncology and Cell Biology, The Feinstein […]
A new method to make valuable olefins from abundant carboxylic acids
Organic chemistry is the science and the art of making carbon containing molecules. In these, carbon atoms may be linked by a single, double or triple bond to another carbon atom. Bonds are not more than the way we humans […]
A pinch of salt for CRISPR research
Unless you’ve been sitting in a cave for the last couple of years, you have probably heard about the new great promise of gene therapy: the gene editing CRISPR system. This new addition to the molecular biology toolbox is […]
Alpha by design
In social species, the dominant individual is often called the alpha. Depending on the species, the alpha may be a male, a female, both or a pair. The alpha individual usually presents a certain behavior: dominant, assertive, brash and usually […]
Strong donor-acceptor coupling does not require covalent bonding
Interfacial electron transfer constitutes the key step in the conversion of solar energy into electricity and fuels. Required for fast and efficient charge separation, strong donor−acceptor interaction is typically achieved through covalent chemical bonding…or not.
Experiences with donor−acceptor molecular diads […]
Testosterone and bad judgments
Testosterone is the primary male sex hormone and, in men, it plays a key role in the development of male reproductive tissues such as the testis and prostate, as well as promoting secondary sexual characteristics such as increased muscle and […]
Topological Quantum Chemistry, the band theory of solids is now complete
Extended and refined by Bloch and others during the 1930s, Bloch’s theory, known as the band theory of solids, accounts very well for the conducting behaviour of materials. When atoms are joined together into a crystal, each of the individual […]
Where have all the megasharks gone?
We’ve known for decades there was a time when mammoths, saber-tooth cats, and other big mammals walked the Earth like it was no big deal. We also know that at some point of the Ice Age, a mass extinction made […]
Materials for raising the temperature of the quantized anomalous Hall and magnetoelectric effects
Topological insulators are electronic materials that have a bulk band gap like an ordinary insulator but have conducting states on their edge or surface. The conducting surface is not what makes topological insulators unique, but the fact that it is […]