Preamble In the period 2015-2019, I was hired as a mathematician by a biology department in order to perform a research that eventually would become my doctoral thesis. This text is adapted from the last chapter of that thesis, “Cycles and interactions: A mathematician among biologists” (full text available here ). The symbiosis between mathematics […]
Adsorption commonly is understood as the reversible binding of molecules and atoms from the gaseous or liquid phase on surfaces, mostly of highly porous adsorbent media. In chemisorption a single layer of molecules, atoms or ions is attached to the adsorbent surface by chemical bonds; in physisorption only van der Waals forces are involved. Adsorption […]
Parkinson’s disease is characterized by neuronal loss in the brain’s substantia nigra region. What if another cell type, namely, astrocytes, could replace them? The work of two research groups recently published Zhou, H. et al. Cell 181, 590–603.e16 (2020). shows that, at least in mice, transforming astrocytes (a non-neuronal cell type in the brain) into […]
Condensed matter • DIPC Advanced materials • Materials • Quantum physics
Topological materials have special universal properties, which are protected against perturbations. Such properties are theoretically described by topology, a branch of mathematics concerned with the properties of geometrical objects that are unchanged by continuous deformations. Topological materials behave like an ordinary insulator in the bulk but have conducting states on their boundaries, i.e., edges or […]
Populations are not static, and the geographic distribution of genetic diversity within and among populations is changing continuously. The drivers of genetic differentiation is one of the cornerstones in evolution, as genetic diversity is paramount for the ability of populations to adapt and persist in changing environments. The spatio-temporal changes in genetic diversity constantly taking […]
A chimera was a mythological animal in the Antique Greece, but now a biological chimera is an animal with cells from different organisms. In recently published research in Science Advances , researchers show the result of the newest trial to introduce human cells into a mouse embryo. The last human mouse chimera. This was not […]
A nanoantenna with balanced electric and magnetic dipole moments exhibits a directive radiation pattern with zero backscattering. This is known as the first Kerker condition after Kerker, Wang, and Giles, who predicted in 1983 that, under plane wave illumination, magnetic spheres with equal relative permittivity and permeability radiate no light in the backscattering direction. They […]
Like intelligence, height is genetically determined, however there are thousands of genes implicated in height determination. That is why the finding by researchers from Harvard Medical School of a gene variant responsible for shortening the average height of Peruvians in about 2.2 centimetres is so interesting. There are other rare gene variants known that cause […]
Chemistry • DIPC Electronic Properties • DIPC Interfaces • Materials
Organic-based materials have gained rising interest as active components in electronics, energy conversion and catalytic systems. However, the discrete nature of the molecular constituents of these systems implies a reduced electron conductance, lowering the device efficiency. In order to increase the electron delocalization through an improved structural order, which favors orbital overlap and consequently the […]
How can we experience a sensation that is not real? How to mimic a sensory stimulus in its absence? How to smell a smell when there is none there? By activating certain neurons, it seems. A group of researchers at New York University’s Grossman School of Medicine have recently published an article in Science […]