Nowadays there are still people that believe in destiny. However the scientific community more and more is bringing light to that subject showing that although the genetic material could program ourselves to suffer some pathologies, the day-to-day experiences are the ones that lead us towards a healthy or pathological aging. And how is that? Our […]
For many centuries, the passage of light through matter was regarded as that of a wave in a fixed medium characterized by a refractive index (n), which may depend on the frequency. This description is consistent with plenty of phenomena, including diffraction, interference, refraction, dispersion or polarization, associated to distinguished names of the history of […]
Few weeks ago, a new report by WHO reveals that antibiotic resistance is now a major threat to global public health: “ the world is headed for a post-antibiotic era ”. One of the priorities is the treatment of urinary tract infections caused by Escherichia coli strains isolated from several countries and which are resistant […]
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Study of extinct elephant bird leads researchers to surprising conclusion DNA studies of the massive, extinct elephant bird of Madagascar show that its closest modern relative is New Zealand’s tiny kiwi, rather than the ostrich, which it more closely resembles, leading researchers to speculate about how the flightless birds migrated, according to a study published […]
Author: Alvaro Arrizabalaga received a BA in History (Vitoria, 1988) and a Master in CRM -Archaeology option- (Vitoria, 1992) at the University of the Basque Country (Spain). He finished his PhD in Prehistory ( La industria lítica del Paleolítico superior inicial en el oriente cantábrico ) in 1995. He has been a lecturer of Prehistory […]
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Plant that consumes nickel found in the Philippines A plant that thrives in nickel-rich dirt has been discovered in the Philippines. Rinorea niccolifera can absorb large amounts of nickel through its leaves. UPI Regrown bone in monkeys using pluripotent stem cells It could be possible to grow new bone in humans using induced pluripotent stem […]
The SN2 reaction is one of the most important processes in organic chemistry and has been the subject of numerous experimental and theoretical investigations . The designation SN2 stands for substitution nucleophilic bimolecular. The reaction’s equation, X + R-Y → X-R + Y, summarizes bond formation by the attacking nucleophile X with the moiety R […]
Imagine you are the owner of a hot dog stand and, after many stressful years in the streets of New York City, you are moving the business to the countryside. Of course, you want all the potential users to have your stand as close as possible. After thinking on it for a while, you take […]
Of all the advances made in theoretical physics in the last twenty years, I still have no doubt that the most impressive one is the so called Maldacena’s conjecture, the guess that the physics involved in some models of quantum gravity living in a very concrete 5-dimensional spacetime has a one-to-one correspondence with the physics […]
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Turtles more closely related to crocodiles and birds than snakes and lizards The murky evolutionary history of the turtle has been made a little clearer by researchers using new microRNA data which link the shelled reptiles more closely with birds and crocodiles than to lizards and snakes. Yale University Universe’s evolution recreated in computer simulation […]