Rapporteur’s comments on four sessions about ‘Food Matters’

Final Published versio

Workshop Proceedings - Connected communities ‘Mini charrette’ for arts, culture and heritage in Milton Keynes

This workshop report documents a mini charrette run at Bradwell Abbey in Milton Keynes as part of the New Towns and Garden Cities Heritage research project for which Dr Parham is a co-investigato

Spatial and temporal variation in degradation of dissolved organic carbon on the main stem of the Lamprey River

Degradation of dissolved organic carbon by microbial and photolytic processes was examined along the main stem of the Lamprey River Watershed located in southeastern New Hampshire. Eight sites were chosen and sampled biweekly throughout the seasonal hydrograph. Lab incubations were employed to assess microbial degradation of dissolved organic carbon (DOC) where one set of samples was exposed to natural sunlight for a day to assess photolytic degradation. Mean biodegradable dissolved organic carbon (BDOC) throughout the study period was 5.8% with no significant variation observed between sites. Temporal variation was found to be a much stronger driver of DOC composition with summer showing the highest degradation of 8.6% and winter the lowest. Initial DOC concentration was found to be the only significant positive predictor of BDOC on both an annual and seasonal scale. Photolysis had no significant effect on DOC degradation or availability of DOC to the microbial pool. Findings suggest that temporal variation is a significant driver of DOC composition via DOC sources that change throughout the season

“‘For you, pollution’: The Victorian Novel and a Human Ecology. Disraeli’s Sibyl and Gaskell’s Mary Barton”

Catherine Gallagher, in The Body Economic: Life, Death, and Sensation in Political Economy and the Victorian Novel locates the interest of Victorian literature in its deconstruction of boundaries. Her notion of a ‘dialectical synthesis’, in the novel, between Victorian political economy and ‘the unique, nonfungible properties of things’ and ‘noninstrumental nature of people’ (2006: 1) might, in turn, inform a less dichotomous ecological theory that would substitute (broadly) romantic, deep ecology with a more dialectical understanding in which the now recognised complexity of ecological systems would extend to encompass the human realm including, ultimately, issues around environmental injustice

“Dickens in the City: Science, Technology, Ecology in the Novels of Charles Dickens”

This article addresses the obscuring of Dickens’s interest in contemporary science. It argues that Dickens was acquainted with those scientific developments – evolutionary biology and energy physics – that would converge, in the nineteenth century, to form ecological science. Arguing that Dickens then applied his interest in science, and his own conception of a ‘poetic science’ towards an analysis of society, the paper considers his examination of industry, technology, and the physical shape that these bequeathed to the Victorian city in the light of contemporary social ecology. The article ends by arguing that Dickens’s double-edged understanding of technology and the city allows us to understand his writing as an example of what John Clark has called a ‘social ecology of the imagination’ and, more generally, of a reconstructive quality shared with social ecology

The Benefit of Encoder Cooperation in the Presence of State Information

In many communication networks, the availability of channel state information at various nodes provides an opportunity for network nodes to work together, or "cooperate." This work studies the benefit of cooperation in the multiple access channel with a cooperation facilitator, distributed state information at the encoders, and full state information available at the decoder. Under various causality constraints, sufficient conditions are obtained such that encoder cooperation through the facilitator results in a gain in sum-capacity that has infinite slope in the information rate shared with the encoders. This result extends the prior work of the authors on cooperation in networks where none of the nodes have access to state information.Comment: Extended version of paper presented at ISIT 2017 in Aachen. 20 pages, 1 figur

The Multivariate Covering Lemma and its Converse

The multivariate covering lemma states that given a collection of $k$ codebooks, each of sufficiently large cardinality and independently generated according to one of the marginals of a joint distribution, one can always choose one codeword from each codebook such that the resulting $k$-tuple of codewords is jointly typical with respect to the joint distribution. We give a proof of this lemma for weakly typical sets. This allows achievability proofs that rely on the covering lemma to go through for continuous channels (e.g., Gaussian) without the need for quantization. The covering lemma and its converse are widely used in information theory, including in rate-distortion theory and in achievability results for multi-user channels.Comment: 10 page