Author: Jose V. Torres-Perez (@Jovitope) is a Postdoctoral Researcher at the School of Biological and Chemical Sciencies, Queen Mary, University of London (UK). This is the story of primary cilium, a cellular structure discovered at least 122 years ago. It was soon regarded as rudimentary and then forgotten for most researchers. Nonetheless, recent advances proved […]
Forming large groups (flocks, banks, swarms, herds, schools, …) is characteristic of many species. The generally accepted idea is that it is an adaptive process, in which the individual improves its chances of survival by being part of a numerous group. A shark does not know which fish to attack in a sardine bank and […]
Man does not live by hardware alone. Indeed, great material and conceptual improvements in the machinery of optical microscopes have occurred in recent decades. The examples are numerous (some example here; https://mappingignorance.org/2013/12/23/bessel-beam-plane-illumination-microscopy-another-smart-solution-for-an-old-challenge/). However, what is being achieved only with software and computing power seems a matter of magic. It is not only that programs and […]
The cicadas are part of the soundtrack of summer. Their calls, especially if a large number of animals is gathered, can form an impressive concert. They are part of the hemiptera, the order of aphids and bedbugs, but they do not have the bad reputation of these others, although they are not beneficial either. The […]
Spiders build their webs using the silk they synthesize and secrete from their spinning glands, structures located in the back of the abdomen. The most primitive species have few glands and build their nets with fairly uniform silks. The most evolved spiders, on the other hand, have up to seven different spinning glands with which […]
Biology • Biomedicine • Computer science • Nanotechnology • Neuroscience • Physics
In 1873, the microscopist Ernst Abbe stipulated a physical limit for the maximum resolution of traditional optical microscopy: 0.2 micrometers, or 200 nanometers (the shortest wavelength for visible light, the extreme limit of violet). This meant that scientists could distinguish whole cells, as well as some parts of the cell called organelles. However, they would […]
Authors: Gerardo Cebrián-Torrejón1, Michelle Salas Pinel1,2 1 Laboratoire COVACHIM-M2E EA 3592, Université des Antilles, 97157 Pointe-à-Pitre Cedex. 2 Forest engineer. Heredia. Costa Rica. The Applied Scientific Research Program of Medicinal Plants, known as TRAMIL, is an investigation program of traditional and popular medicine from the Caribbean, whose purpose is to rationalize health practices based on […]
Science often advances through improvements in our ability to measure and observe. Just take the example of migrating storks. In the beginning, the Egyptians had a mystery: storks appeared in Africa during winter and disappeared in the summer. As explorers travelled the world, they saw the storks pop up in middle Europe during the summer […]
Maternal and paternal stress have been proved to be critical aspects of off-spring brain development. High levels of stress on pregnant mothers can alter both placental and embryonic gene expression patterns, misprogramming the brain of the newborn towards psychiatric disorders such as anxiety or depression. At the same level, paternal stress alters microRNAs and other […]
“It is often said that all the conditions for the first production of a living organism are now present, which could ever have been present.— But if (& oh what a big if) we could conceive in some warm little pond with all sorts of ammonia & phosphoric salts, light, heat, electricity etc present, that […]
