Organic small molecules are essential for many different fields, from medicine to technology: Most of the drugs we take, biological probes and the constituents of solar cells, to name but a few, are small organic molecules. (Figure 1) However, their synthesis in the laboratory is not easy. Individual reaction conditions for each step of the […]
Humanities & Social Sciences • Science • Technology • Weekly Selection
Mice regain some hearing after gene therapy Researchers were able to partially repair hearing loss in mice using gene therapy, according to a study. The mice were either missing the gene TMC1, responsible for a protein required for proper inner ear hair cell functioning, or it had mutated, and scientists introduced a normal copy of […]
The standard three-layer model for the interior of Jupiter and Saturn claims that an outer layer of molecular hydrogen surrounds an inner layer of liquid metallic hydrogen, with a probable rocky, molten core. The Z machine at Sandia National Laboratories has been used to explore the boundary between the insulator and metallic hydrogen layers. At […]
In nanophysics one is dealing with physical systems that are formed of parts consisting of a relatively small number of atoms; these systems are typically less than 100 nm in size. As a consequence quantum and surface effects are extremely important. The subject can be traced back to a remarkably visionary and famous talk given […]
Increasing numbers of people are developing diabetes in our society and current predictions estimate that nowadays this disease affects about 9% of the whole population. As a consequence, health care systems in industrialized countries have developed many types of clinical interventions that prevent and treat classic complications of this disease and improve the lifetime and […]
Iodized salt has been on the market for decades, but do you know why it is so important for you? Iodine deficiency is one of the most common causes of preventable mental retardation worldwide. Moderate to severe iodine deficiency is associated with reductions of 13.5 points in mean intelligence quotient (IQ). Iodine is an important […]
Humanities & Social Sciences • Science • Technology • Weekly Selection
Signals from Milky Way’s center may be from pulsars, not dark matter The abundance of gamma rays seen at the at the center of the Milky Way in data from the Fermi satellite may just be remnants of dead stars and not evidence of dark matter. Two separate research teams say signals coming from the […]
Mayans considered chocolate to be the food of gods, something that is remembered in the scientific name of the cacao plant ( Theobroma cacao ). Although these presumably consumers are not any longer considered, c hocolate is an important dietary source of flavonoid antioxidants, which are hypothesized to have a beneficial effect on endothelial function […]
Computer science • Condensed matter • Materials • Physics • Quantum physics
When quantum computing comes, it very likely will rely for the fast storage and processing of information on spintronics. Spintronics (from spin transport electronics) is a branch of technology that specifically makes use of quantum-mechanical spin, and especially of the transport of that spin, in electronic devices. Spin is the part of the total angular […]
Quantum mechanics represented a revolution in physics with implications in many other fields like chemistry and biology. It also conducted changes on some of the main scientific lines of thought, including a farewell to determinism. In the science before quantum mechanics probability was accepted only as a lack of knowledge from the system being studied […]