Artículos con la etiqueta ‘biología molecular’

Evolutionary Design in Biological Quantum Computing

Por • 29 nov, 2013 • Category: Ciencia y tecnología

The unique capability of quantum mechanics to evolve alternative possibilities in parallel is appealing and over the years a number of quantum algorithms have been developed offering great computational benefits. Systems coupled to the environment lose quantum coherence quickly and realization of schemes based on unitarity might be impossible. Recent discovery of room temperature quantum coherence in light harvesting complexes opens up new possibilities to borrow concepts from biology to use quantum effects for computational purposes. While it has been conjectured that light harvesting complexes such as the Fenna-Matthews-Olson (FMO) complex in the green sulfur bacteria performs an efficient quantum search similar to the quantum Grover’s algorithm the analogy has yet to be established. In this work we show that quantum dissipation plays an essential role in the quantum search performed in the FMO complex and it is fundamentally different from known algorithms.

Consciousness: A Direct Link with Life’s Origin?

Por • 1 mar, 2011 • Category: Opinion

Inspired by the Penrose-Hameroff thesis, we are intuitively led to examine an intriguing correspondence of ‘induction’ (by fields), with the complex phenomenon of (metabolism-sustained) consciousness

Temperature Dependence of Protein Folding Deduced from Quantum Transition

Por • 25 feb, 2011 • Category: Leyes

A general formula on the rate-temperature dependence has been deduced which is in good accordance with experimental data. These temperature dependences are further analyzed in terms of torsion potential parameters.

Why complex life probably evolved only once

Por • 25 oct, 2010 • Category: Ambiente, Ciencia y tecnología

The universe may be teeming with simple cells like bacteria, but more complex life – including intelligent life – is probably very rare. That is the conclusion of a radical rethink of what it took for complex life to evolve here on Earth.

Scientists Identify DNA That May Contribute to Each Person’s Uniqueness

Por • 20 ago, 2010 • Category: Ciencia y tecnología

Building on a tool that they developed in yeast four years ago, researchers at the Johns Hopkins University School of Medicine scanned the human genome and discovered what they believe is the reason people have such a variety of physical traits and disease risks.