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Following the need for new and renewable sources of energy worldwide, fuel cells using electrocatalysts can be thought of as viable options. Catalyst materials modify and increase the rate of chemical reactions without itself undergoing any permanent change. An electrocatalyst is a catalyst that participates in electrochemical reactions and that functions at electrode surfaces or […]

Our society will be facing a number of health-related challenges in the near future, partly as a consequence of our own practices. Perhaps the best known examples are the (severe) health issues linked to smoking (not just to smokers, but also their children via epigenetic changes) or the abnormally high intake of carbohydrates, with the […]

The study of nuclear receptors includes a great variety of approaches and techniques: from experiments with transgenic mice assessing their roles in the organism, to three-dimensional methods at the atomic level, in which the position of each amino acid and its function are examined. Dr. Estébanez’s research line focuses in the latter feature. T he […]

Distant dwarf planet Haumea boasts a super-fast spin A dwarf planet that exists far past Neptune spins extremely fast on its axis. Haumea’s fast spin, once every four hours, contributes to its elongated shape. Space.com Ancient jawbone suggests earlier exit from Africa for modern humans The oldest human fossil ever found outside of Africa has […]

When I first started writing about condensed matter science I found some difficulties with a few purely physical concepts, being myself a chemist by education. One of those was ‘polariton’. After some years of reading solid state physics papers and writing about them on a weekly basis, now is a familiar term, but I still […]

Contrary to what was thought some years ago, the adult central nervous system is capable of generating new neurons, some of which are integrated into functional circuits and seem to be essential for processes such as memory and learning. The question of why these new neurons are not capable of replacing those lost in neurodegenerative […]

In 1951, the physicist Paul A.M. Dirac called for the re-introduction of the æther in an oft-quoted letter to Nature. His was an attempt to resuscitate an epistemic object that most scientists at the time, as much as today, judged to be dead and buried. By using the old-fashioned spelling, Dirac was making a statement […]

Changing weather in Arctic may threaten musk oxen Musk oxen, used to living in the Arctic’s extreme cold, may not do well in the region’s changing climate. The warmer, rainy weather has limited their ability to find food, leading to a decline in health. The New York Times Hunter-gatherers can identify smells better People living […]

We tacitly assume that perfect order exists throughout crystalline materials on an atomic scale when we discuss crystals in general. However, such an idealized solid does not exist at all in nature. All of them contain large numbers of various defects or imperfections. As a matter of fact, many of the properties of materials are […]

Economics needs theory, lab experiments, historical data and field evidence. Pilot programs and randomized controlled trials are particularly credible from the point of view of internal validity. However, the results of these “proof-of-concept” studies do not necessarily extend beyond the context in which they where implemented or scale up if they are generalized. Banerjee et […]