SWP5.1: Report of all three rounds of the Delphi Inquiry on the European Market for Organic Food

Experts on organic food marketing and rural development from a variety of occupational backgrounds in 18 European countries were sent three subsequent questionnaires including feedback on the results of the previous round in this Delphi inquiry into the market for organic food and impact for rural development in Europe. The response to all three rounds has been good (response rate of 51% between the 1st and 3rd round). In broad terms the response of 129 experts to the third confirmed the tentative conclusions of the second round and provided some additional insights

Reward Enhances Pain Discrimination in Humans

The notion that reward inhibits pain is a well-supported observation in both humans and animals, allowing suppression of pain reflexes to acquired rewarding stimuli. However, a blanket inhibition of pain by reward would also impair pain discrimination. In contrast, early counterconditioning experiments implied that reward might actually spare pain discrimination. To test this hypothesis, we investigated whether discriminative performance was enhanced or inhibited by reward. We found in adult human volunteers (N = 25) that pain-based discriminative ability is actually enhanced by reward, especially when reward is directly contingent on discriminative performance. Drift-diffusion modeling shows that this relates to an augmentation of the underlying sensory signal strength and is not merely an effect of decision bias. This enhancement of sensory-discriminative pain-information processing suggests that whereas reward can promote reward-acquiring behavior by inhibition of pain in some circumstances, it can also facilitate important discriminative information of the sensory input when necessary

Imperial careering and enslavement in the long eighteenth-century: the Bentinck family, 1710-1830s

This paper examines the claims of Eric Williams and the more recent Legacies of British Slave-Ownership projects regarding the influence of enslavement in the building of Britain and its empire through a multi-generational study of a leading British elite family, the Bentincks. Using the concept of imperial careering, it charts how four men from this family not typically identified as enslavers or abolitionists were entangled with enslavement in Britain’s Western and Eastern empires. It concludes that the influence of enslavement was extensive and mainly exploitative, but involved losses as well as gains for these elite protagonists

Evidence for dopaminergic involvement in endogenous modulation of pain relief

Relief of ongoing pain is a potent motivator of behavior, directing actions to escape from or reduce potentially harmful stimuli. Whereas endogenous modulation of pain events is well characterized, relatively little is known about the modulation of pain relief and its corresponding neurochemical basis. Here, we studied pain modulation during a probabilistic relief-seeking task (a ‘wheel of fortune’ gambling task), in which people actively or passively received reduction of a tonic thermal pain stimulus. We found that relief perception was enhanced by active decisions and unpredictability, and greater in high novelty-seeking trait individuals, consistent with a model in which relief is tuned by its informational content. We then probed the roles of dopaminergic and opioidergic signaling, both of which are implicated in relief processing, by embedding the task in a double-blinded cross-over design with administration of the dopamine precursor levodopa and the opioid receptor antagonist naltrexone. We found that levodopa enhanced each of these information-specific aspects of relief modulation but no significant effects of the opioidergic manipulation. These results show that dopaminergic signaling has a key role in modulating the perception of pain relief to optimize motivation and behavior

Neglected intermediaries in bioenergy straw supply chains: Understanding the roles of merchants, contractors and agronomists in England

Outside of Denmark, straw-based bioenergy has seen uneven success across Europe. In the UK, straw-based bioenergy has been positioned as making a potentially important contribution to the UK government's energy and environmental objectives. However, growth of the sector has been modest and supply shortages have been experienced despite straw being anticipated as readily available in the UK and surplus to existing market requirements. This paper explores a previously under theorised and neglected aspect of this story, the role played by agricultural intermediaries, merchants, contractors and advisors. Drawing on interviews with farmers, bioenergy industry representatives, agronomists, straw merchants and contractors from three case study areas, it finds that intermediaries undertake key roles providing physical and social labour required to maintain straw supply chains. They provide baling equipment, maintain informal and formal agreements with producers and users, build and maintain trust, influence on-farm management of straw and increase supply chain resilience to market shocks. However, there is tension between agronomists who advise straw incorporation and the aims of straw merchants/bioenergy policy which seek to incentivise baling. If policy makers are committed to developing a straw-based bioenergy industry, then policy frameworks need to engage in a multi-actor approach that enables the development of committed and well-resourced intermediaries

Women and estate management in the early eighteenth century: Barbara Savile at Rufford Abbey, Nottinghamshire (1700-34)

There is a rich and increasing body of research pointing to the significant role elite women played in property management during the eighteenth century. In this paper we examine the contribution of an elite widow, Barbara Savile, to the management of her son Sir George Savile’s extensive landholdings in Nottinghamshire and Yorkshire from 1700 until her death in 1734. We establish that Barbara Savile had a deep understanding of estate business and was a shrewd judge of character, expertise on which both Sir George and his stewards relied. She scrutinised account books, commissioned surveys for rental reassessment, was instrumental in the negotiation of wood contracts and was closely involved in the practical management of many aspects of tree and woodland management

A Key Role for Similarity in Vicarious Reward

Humans appear to have an inherent prosocial tendency toward one another in that we often take pleasure in seeing others succeed. This fact is almost certainly exploited by game shows, yet why watching others win elicits a pleasurable vicarious rewarding feeling in the absence of personal economic gain is unclear. One explanation is that game shows use contestants who have similarities to the viewing population, thereby kindling kin-motivated responses (for example, prosocial behavior). Using a game show–inspired paradigm, we show that the interactions between the ventral striatum and anterior cingulate cortex subserve the modulation of vicarious reward by similarity, respectively. Our results support studies showing that similarity acts as a proximate neurobiological mechanism where prosocial behavior extends to unrelated strangers

A Key Role for Similarity in Vicarious Reward

Humans appear to have an inherent prosocial tendency toward one another in that we often take pleasure in seeing others succeed. This fact is almost certainly exploited by game shows, yet why watching others win elicits a pleasurable vicarious rewarding feeling in the absence of personal economic gain is unclear. One explanation is that game shows use contestants who have similarities to the viewing population, thereby kindling kin-motivated responses (for example, prosocial behavior). Using a game show–inspired paradigm, we show that the interactions between the ventral striatum and anterior cingulate cortex subserve the modulation of vicarious reward by similarity, respectively. Our results support studies showing that similarity acts as a proximate neurobiological mechanism where prosocial behavior extends to unrelated strangers

Demanding the impossible: a strike zine

A co-authored and co-curated series of reflections on the 2018 UCU strikes in British Universities, protesting against proposed pension reforms

Inherent High Correlation of Individual Motility Enhances Population Dispersal in a Heterotrophic, Planktonic Protist

Quantitative linkages between individual organism movements and the resulting population distributions are fundamental to understanding a wide range of ecological processes, including rates of reproduction, consumption, and mortality, as well as the spread of diseases and invasions. Typically, quantitative data are collected on either movement behaviors or population distributions, rarely both. This study combines empirical observations and model simulations to gain a mechanistic understanding and predictive ability of the linkages between both individual movement behaviors and population distributions of a single-celled planktonic herbivore. In the laboratory, microscopic 3D movements and macroscopic population distributions were simultaneously quantified in a 1L tank, using automated video- and image-analysis routines. The vertical velocity component of cell movements was extracted from the empirical data and used to motivate a series of correlated random walk models that predicted population distributions. Validation of the model predictions with empirical data was essential to distinguish amongst a number of theoretically plausible model formulations. All model predictions captured the essence of the population redistribution (mean upward drift) but only models assuming long correlation times (minute), captured the variance in population distribution. Models assuming correlation times of 8 minutes predicted the least deviation from the empirical observations. Autocorrelation analysis of the empirical data failed to identify a de-correlation time in the up to 30-second-long swimming trajectories. These minute-scale estimates are considerably greater than previous estimates of second-scale correlation times. Considerable cell-to-cell variation and behavioral heterogeneity were critical to these results. Strongly correlated random walkers were predicted to have significantly greater dispersal distances and more rapid encounters with remote targets (e.g. resource patches, predators) than weakly correlated random walkers. The tendency to disperse rapidly in the absence of aggregative stimuli has important ramifications for the ecology and biogeography of planktonic organisms that perform this kind of random walk