Editorial: Science cannot be placed above its consequences

Why Machines Cannot be

Mental processes are abstracted from a subset of the physical universe ; these, in turn, lead to the world of ideas. Although these ideas include quantum logic, no credible way has yet been found that constructs machines which use superimposed possibilities in the style of quantum logic, more general in computing power to machines based on classical logic. Machine theories are based exclusively...

Editorial comment: Ventricular assist devices for advanced heart failure: evidence that cannot be ignored.

Why science cannot stand alone.

In an era in which certain arenas of scientific research have become increasingly controversial, this article critically evaluates what it means to "believe in science." Many scientists today seem to claim a sovereign right to no political interference under the rubric of freedom. This article questions such a notion, and explores the dominance of science and the silencing of moral voices by un...

Aggregating preferences cannot be fair

SOMMARIO/ABSTRACT Preferences typically define a partial ordering over outcomes. A number of formalisms like soft constraints and CP-nets exists to specify such partial or-derings. In situations involving multiple agents, we need to combine the preferences of several individuals. In this paper, we consider each agent as voting on whether they prefer one outcome to another. We prove that, under ...

Quantum History Cannot Be Copied

We show that unitarity does not allow cloning of any two points in a ray. This has implication for cloning of the geometric phase information in a quantum state. In particular, the quantum history which is encoded in the geometric phase during cyclic evolution of a quantum system cannot be copied. We also prove that the generalized geometric phase information cannot be copied by a unitary opera...