Spanish scientists have created a "molecular velcro" that, on the one hand, adheres to gold and, on the other, traps molecules such as growth hormones or viruses almost instantly, compared to other methods that require hours. The device is applicable to clinical analysis, infection detection and quality control in the pharmaceutical industry.
The latest version of the iRedes map that analyzes the use of social networks in Spanish has just been presented. The absolute leader continues to be Facebook, with 1 billion users, followed by YouTube, QQ, Twitter and Sina Weibo. In what position are the networks dedicated to finding a partner? And those focused on the world of work? We made a short trip through the data of the third edition of the map of social networks presented for the next iRedes congress that will be held in Burgos in the coming days.
As if it were a huge "donut" (or torus) that grows as the days go by. This is how the researcher from the Instituto de Astrofísica de Canarias (IAC) Jesús Corral describes the peculiar structure, unknown to date, of the binary system Swift J1357.2-0933, composed of a 'normal' star and a stellar-mass black hole, is say, that it feeds on the companion star, located on edge. A study of which Corral is the first author and that appears published in the latest issue of Science has followed the steps of the eruption phase of the system, a fact that only occurs once every tens or hundreds of years.
NASA's twin Van Allen probes mission has identified a hitherto unknown third ring of radiation around Earth, suggesting that there are unexpected structures and processes in these regions of space.
Gambling sites and pornographic content are often the source of all kinds of Trojans and computer viruses. However, according to the 2013 Annual Security Report of the Cisco company, the greatest threats to the security of Internet users are not found there, but in much more common websites such as social networks, online shopping pages and major search engines.
An international study in which scientists from the Higher Council for Scientific Research (CSIC) have participated has developed a mathematical model that describes the dynamics of conflicts in the editing of articles on Wikipedia. The results, published in the journal Physical Review Letters, represent a step towards understanding the mechanisms of collective opinion formation.
In addition to regulating blood sugar levels, insulin plays a critical role in modulating the activity of neurons involved in learning and memory, according to a new work published in the journal Neuron. "People often think that insulin regulation disorders simply cause diabetes, but many cognitive and behavioral defects, such as depression or dementia, are also associated with metabolic syndromes," says Yun Zhang, a biologist at Harvard University. and responsible for the study.
To calculate the height of a hominid it is not necessary to have it in front of it. Until now, scientists used to measure long bones like the femur, and from there they made estimates. A team of researchers, including Spanish scientists, has shown that it is also possible to find out from foot bones.
Danni Büchner is invited to Sam Dylan's Halloween party. But the "Goodbye Germany" emigrant has no desire for many other party guests. And find clear words.
