C W Evers, J C Walker; Knowledge, Partitioned Sets and Extensionality: a refutation of the forms of knowledge thesis, Journal of Philosophy of Education, Volume.

C W Evers, J C Walker; Pyrotechnics Defended: a reply to Jim Mackenzie, Journal of Philosophy of Education, Volume 21, Issue 1, 30 May 2006, Pages 139–142, http.

C W Evers, J C Walker; Knowledge, Partitioned Sets and Extensionality: a refutation of the forms of knowledge thesis, Journal of Philosophy of Education, Volume.

Governments and other food system actors from the private sector, civil society, research and education institutions are being called upon to work together to enhance the sustainability, resilience and inclusiveness of food systems. The analysis presented in this study provides an insight into the process and direction of food system transformation, and the key capabilities required. It portrays the interplay of different internal and external dynamics combined with the capacity of food system actors to connect, forge alliances and commit to (...) specific actions that has enabled countries to move towards a more sustainable food system. (shrink)

Conference Report: Towards a Science of Consciousness, Helsinki 2015.

C W Evers, J C Walker; Pyrotechnics Defended: a reply to Jim Mackenzie, Journal of Philosophy of Education, Volume 21, Issue 1, 30 May 2006, Pages 139–142, http.

It is proposed that a human conscious experience of the sort we report to each other reflects a direct causal interaction between a pattern of information about the world, encoded in a field of postsynaptic potentials, and a quantized mode of excitation occupying dendritic cytoskeleton. The requirement for a quantized account is seen simply as the need for an event of experience to be a single indivisible, but richly patterned, causal relation between information and an 'informee'. It is argued that (...) the informee is likely to be a higher-order quantized collective mode (much as proposed by Craddock and colleagues, 2017) with the biologically relevant dynamics likely also to be describable in classical terms. No specific interpretation of quantum theory is needed. In this scenario, anaesthetics would abrogate reportable experience by detuning parameters underpinning cytoskeletal informee modes, perhaps critically increasing associated impedence. It is also proposed that tuning and detuning of informee modes in individual dendritic trees by binding of accessory proteins to cytoskeleton plays a physiological role in short-term memory and truth evaluation through ascertainment of sequential signal pattern consonance. Components of this model may be involved in cellular adaptive responses in many types of organism. (shrink)

Conscious experience has been said to be outside of, or alien to, physics, and unexplained in a physical world. However, it is argued here that experience is entirely expected in a physical world that can only be defined by its power to determine patterns of experience. Something physical is something with the type of causal power that can contribute to determining the content of an experience if a subject is present at the right place and time. Physical powers also interact (...) with other physical powers, distant from any given subject, to form chains, and it is these interactions that physics handles mathematically. Nevertheless, actual causation is always defined by reference to determination of experience. The apparent puzzle of why there should be a link between experience and the physical may relate in part to the fact that experience is always immediately causally proximal, always 'here and now', at least as far as we can ascertain. Proximality, and with it the potential for mentality, cuts across existential/ ontological categories. Experience also requires a concept of an intrinsic individual, in order for there to be individual points of view. The practical problem for consciousness studies is to identify intrinsically individual causal units with event domains in human brains, that can have points of view and content that could fit with human experiences, in a way consistent with current physics. It is suggested that the 'causal diamond' concept of the here and now explored by Savitt (2015) and Arthur (2019), together with principles of field theory, may provide a useful starting point. (shrink)

A coordinate-free formulation is established for (semi) classical particle-field interactions. The exterior language of spacetime chains and De-Rham currents enables the description to include extended strings and membranes besides point particles. Treating physical fields in terms of sections of particular bundles, a unified account of interactions is presented in terms of an intrinsic action principle on a bundle of jets over spacetime. The theory is illustrated by considering the specific model of point particles with intrinsic spin covariantly coupled to theU(1) (...) andSL(2, C) connections describing the electromagnetic and gravitational fields, respectively. The notion of dual spin is examined in this context and coupled equations for this particle-field system are explicitly derived in a local chart. Attention is drawn to the global implications of the theory. (shrink)