Category archives: Science

Porphyrins are among nature’s most important pigments. The name comes from the Greek word for purple, and the molecules are four small nitrogen-containing rings joined into a larger ring, with room at the centre for a metal atom. In the haemoglobin of blood that atom is iron; in the chlorophyll of plants it is magnesium […]

In 1960, Science, one of the world’s leading science journals, published an article with an unambiguous title: Doomsday: Friday, 13 November, A.D. 2026. It predicted that on this future date —eleven days from today — the human population would approach infinity and effectively annihilate itself. The outlandishness of the claim landed the article widespread public […]

Fats do far more than store energy. They form the membranes that enclose every cell and act as chemical signals. Cells build and reshape them with enzymes, and one of these, ELOVL6, lengthens fatty acids by two carbon atoms. Embedded in the membrane of the endoplasmic reticulum, an internal network where many lipids are made […]

Authors: Chloe Noteboom, student of the European Master’s in Clinical Linguistics, EMCL and Adrià Rofes, associate professor of neurolinguistics, University of Groningen. A hypnotist and a neurosurgeon walk into an O.R…. no, there’s not a punchline coming. Hypnosis is a technique being explored as an alternative to more standard methods of sedation in awake brain […]

Graphene, a honeycomb sheet of carbon atoms just one atom thick, was first isolated in 2004 with adhesive tape and a lump of graphite, work that earned a Nobel Prize in 2010. Large sheets of graphene conduct electricity superbly, but they are not magnetic. Shrink a piece to a few nanometres, however, and its boundary […]

In 2004, physicists isolated graphene, a sheet of carbon just one atom thick. It launched the study of two-dimensional (2D) materials: crystals a few atoms thick in which electrons are confined to a plane and can behave quite differently from those in ordinary solids. The family of known and predicted 2D crystals has since grown […]

One of the ideas most of us learn early in biology is that only a few specialized cells can communicate through electrical signals. Neurons do it. Muscle cells do it. Epithelial cells, the cells that form our skin and line most organs, supposedly do not. However, a recent study by Yu and Granick demonstrates that […]

Authors: Mary M. Hausfeld, Assistant Professor in Management, University of Limerick and Jochen Menges, Director of the Center for Leadership in the Future of Work, University of Zurich Who comes to mind when you think of someone emotionally intelligent? Someone who can read a room, defuse an argument, and who knows exactly what to say […]

Galaxies rotate faster than the matter we can see should allow. Evidence for an unseen, gravitating substance began to build in the 1930s with Fritz Zwicky’s studies of galaxy clusters, and strengthened in the 1970s as Vera Rubin measured how stars orbit within spiral galaxies. Nearly a century later, dark matter is still known almost […]

Probiotics are part of a rapidly expanding field of research. They are live microorganisms that, when administered in adequate amounts, may confer health benefits[1]. Among the most extensively studied probiotics, some species of Lactobacillus and Bifidobacterium have been associated with the maintenance of gut microbiota balance and with several physiological functions[2]. Producing these microorganisms usually […]