Following a Canadian Supreme Court ruling invalidating an absolute prohibition on physician assisted dying, two reports and several commentators have recommended that the Canadian criminal law allow medical assistance in dying (MAID) for persons with a diagnosis of mental disorder. A key element in this process is that the person requesting MAID be deemed to have the ‘mental capacity’ or ‘mental competence’ to consent to that option. In this context, mental capacity and mental competence refer to ‘decision-making capacity’, which is (...) a distinct area of clinical study and research in the theory of informed consent. The purpose of this discussion is to bring several controversial but insufficiently acknowledged problems associated with decision-making capacity to the forefront of the proposed extension of MAID to persons diagnosed with mental disorders. Open-ended access to MAID by persons who suffer from mental health conditions already exists in Belgium and the Netherlands, where the issues raised here are equally relevant. In this paper, we highlight the serious limitations of relying on capacity assessments to allow access to MAID/Euthanasia. (shrink)

Paul Davies explains the significance of the amazing quantum universe, where fact is stranger than any science fiction. He takes us into a world where commonsense notions of space, time, and causality must be left behind as the realm of solid matter dissolves into vibrating patterns of ghostly energy, and where mind and matter are interwoven in a subtle and holistic manner. An Australian physicist and author of GOD AND THE NEW PHYSICS, Davies writes for the lay reader in simple (...) language. (shrink)

An inquiry into the nature of the universe draws out the implications of the quantum theory and argues that our universe is only one among many possible universes and that other universes may exist.

There have been many claims that quantum mechanics plays a key role in the origin and/or operation of biological organisms, beyond merely providing the basis for the shapes and sizes of biological molecules and their chemical affinities. These range from Schr¨odinger’s suggestion that quantum fluctuations produce mutations, to Hameroff and Penrose’s conjecture that quantum coherence in microtubules is linked to consciousness. I review some of these claims in this paper, and discuss the serious problem of decoherence. I advance some further (...) conjectures about quantum information processing in bio-systems. Some possible experiments are suggested. © 2004 Elsevier Ireland Ltd. All rights reserved. (shrink)

Institute of Theoretical Astronomy, University of Cambridge, Cambridge, UK 3fS. received 28th August 1970, in final revised form 1st July 1971..