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ΔΕΙΤΕ τι προβλέπουν τα ζώδια για τον Ιούνιο - Ζώδια thebest.gr - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from thebest.gr Daily Mail and Mail on Sunday newspapers.
Beyond the Nation-State from Boston Review. Sovereign states have been mythologized as the natural unit of political order. History shows how new they are and how we can think beyond them. ....
Structural model of the relaxed surface with the positions of three-fold symmetry axes labelled A, B and C. Each surface unit cell contains four six-fold coordinated indium atoms (blue), 12 five-fold coordinated indium atoms (green), 12 three-fold coordinated oxygen atoms (red) and 12 four-fold coordinated oxygen atoms below (shaded red). The four types of three-fold coordinated oxygen atom are labelled α, β, γ and δ The acidity of single hydroxyl groups on a metal oxide surface has been determined for the first time using non-contact atomic force microscopy (AFM) and a hydroxyl-functionalised tip. 1 With the new setup, researchers in Austria, Germany and the Czech Republic were able to directly assess the proton affinity of individual sites by probing the strength of their hydrogen bonds with the tip. ‘The indium oxide surface we investigated has four different oxygen atoms with different reactivity, which means we can study the proton affinity of four oxygen atoms ....
President's Interactive Qualifying Project Awards Event Recognizes Winning Teams | News wpi.edu - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from wpi.edu Daily Mail and Mail on Sunday newspapers.
Image Credit: Jurik Peter/Shutterstock.com Studies of extraterrestrial atmospheres are enhanced with atomic force microscopy – a scanning probe microscope boasting extremely high resolutions, which make it possible to perform advanced particle analysis at the nanoscale. Experiments by a team of IGM researchers have recently successfully replicated the atmospheric configuration of Saturn’s largest moon, Titan, in laboratory conditions. Using the relatively new atomic force microscopy (AFM) technique on this gas sample, the scientists were able to perform particle analyses that may provide information about Earth s conditions when life was in its early stages. What Was on Titan? Astronomers and geologists have been interested in Saturn’s largest moon for decades. According to scientists, the fog covering the planet in a brownish-orange haze is similar to that which covered Earth 2.8 billion years ago. ....