It is shown that the concept of a Universal Computer cannot be realized. Specifically, instances of a computable function F are exhibited that cannot be computed on any machine U that is capable of only a finite and fixed number of operations per step. This remains true even if the machine U is endowed with an infinite memory and the ability to communicate with the outside world while it is att...

In pregnancy period, there is high risk of hepatic diseases and alcohol consumption increases such risk. Some pregnant mothers are not able to quit the habit of drinking alcohol or they are unaware of its dangers. Finding a drug which is effective and efficient in reducing ethanol misuse consequences during pregnancy can assist the decrease of harmful effects of this habit. The purpose of the c...

Finding communities is an important task for the discovery of underlying structures in social networks. While existing approaches give interesting results, they typically neglect the fact that communities may overlap, with some hub nodes participating in multiple communities. Similarly, most methods cannot deal with outliers, which are nodes that belong to no germane communities. The definition...

1. Duncan J.M., Dunlop P., 1968, Slopes in stiff-fissured clays and shales, ASCE Soil Mechanics Foundation Division Journal, 95, 467-492. CrossRef Google Scholar

The nature of conformational transitions in DNA polymerase lambda (pol lambda), a low-fidelity DNA repair enzyme in the X-family that fills short nucleotide gaps, is investigated. Specifically, to determine whether pol lambda has an induced-fit mechanism and open-to-closed transition before chemistry, we analyze a series of molecular dynamics simulations from both the binary and ternary states ...

Granés, Carlos. 2012. El puño invisible. Arte, revolución y un siglo de cambios culturales. Bogotá, Colombia. Editorial Taurus. 492 p. ISBN: 978-958-758-394-6

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