We present a molecular theory to study the adsorption of different species within pH-sensitive hydrogel nanofilms. The theoretical framework allows for a molecular-level description of all the components of the system, and it explicitly accounts for the acid-base equilibrium. We concentrate on the adsorption of hexahistidine, one of the most widely used tags in bio-related systems, particularly...

In the sixties the idea of inexpensive personal computers was a science fiction and people laughed at Seymour Papert when he envisioned a future where children would use computers for learning and creative expression. But Papert was serious and was conducting serious research in his laboratory as a professor at the Massachusetts Institute of Technology (MIT). This research produced many firsts....

In “Truth in Fiction,” David Lewis raises four objections to a Meinongian semantics of fiction. Lewis does not deny that a Meinongian logic of fiction could be made to work, but identifies disadvantages in Meinongian semantics as a reason for recommending his own possible worlds alternative. A Meinongian semantics proposes to explain meaning without ontological prejudice. It analyzes the meanin...