Paris, Arras et la Cour : Les tapissiers de Philippe le Hardi et Jean sans Peur. 1363-1419

This document is the Accepted Manuscript version of a published work that appeared in final form in Revue du Nord. To access the final edited and published work see http://www.cairn.info/revue-du-nord-2011-1-page-11.htm.The study of the delivery of tapestries at the court of Burgundy between 1363 and 1419 highlights a group of persons who mostly reside in Paris and Arras and are referred to as « tapestry-makers » or « merchants ». Among this group of professionals, one can make out those few who managed to carve themselves a position of regular suppliers of the dukes, some of whom being eventually granted the title of « valet de chamber » and occasionally carrying out the function of guardian of the prince’s tapestry, while the others remained occasional suppliers or experts in the repair, maintenance, conditioning and transport of the tapestries. They all shared the urge to seek the patronage of the duke of Burgundy, although the dukes’ orders were never sufficient to ensure their professional survival. And therefore this prince could not be their only customer : some of them worked for other courts (France, Anjou, Orléans, Berry) and all of them had clients among the urban elites. Besides, as can be consistently observed in Arras, the dukes of Burgundy’s tapestry suppliers diversified their activity, for example as cloth and wine merchants, sat on the échevins’ board and belonged to powerful social and professional networks. For them, supplying tapestries, even occasionally and at the risk of significant financial losses, was not an end in itself but a venture that could prove helpful in the pursuit of social and professional ambitions

Understanding child and parent perceptions of barriers influencing children’s active school travel

Background Physical activity plays a fundamental role in the health and well-being of children. Walking is the most common form of physical activity and the journey to and from school provides an opportunity for children to be active every day. This study examines how child and parent perceptions of barriers to active school travel influences children’s behaviour. Methods Participants were recruited from 48 elementary schools in Southwestern Ontario, Canada. The study sample includes 1296 children (ages 9–14 years) who live within walking distance of their school, defined as 1.6 km network distance. Chi-square analysis examined differences between child and parent perceptions of barriers to active school travel. Logistic regression models examined how parent and child perceptions of barriers influence active school travel behaviour, while controlling for key intrapersonal, interpersonal, and physical environment factors. Results The results indicate that there are significant differences in how parents and children perceive barriers to active school travel. Model results find older children, children without siblings, households with no vehicles, and children who live closer to school are most likely to use active school travel. Parent perceptions of barriers are found to have a greater influence on children’s active school travel behaviour than children’s perceptions. Different perceptions of barriers influence active school travel to school compared to returning home from school. Conclusions Child and parent perceptions of barriers to active school travel differ and have different impacts on children’s travel behaviour. Understanding how child and parent perceptions of barriers differ can help policymakers and practitioners develop specialized interventions aimed at increasing children’s use of active school travel and children’s overall physical activity. Interventions used to promote active school travel should focus on safety, as well as perceptions of distance to break parental habits of routinely driving their children to school. Overall, this study highlights the importance of considering both child and parent perceptions to create a safe and accessible environment to allow for an increase in active school travel behaviour among elementary school children who live within walking distance of their school

Mobility of Objects Across Boundaries 1000-1700

Medieval Chester Retold. An exciting look at the medieval city with stories told through the objects everyday people used. This exhibition is part of a wider Arts and Humanities Research Council funded project, Mobility of Objects Across Boundaries, 1000-1700, led by University of Chester and University of Oxford

The household inventory as urban 'theatre' in late medieval Burgundy

This is an Accepted Manuscript of an article published by Taylor & Francis Group in Social History on 31/03/2015, available online: https://www.tandfonline.com/doi/full/10.1080/03071022.2015.1043179In 1413 at the death of his wife Guillemot, Jean Aubert, a group of witnesses and a clerk of the local mayoralty met to value the possessions of their residence, resulting in an inventory full of notes and values on rooms and their objects. Within the existing historiography of the Burgundian Netherlands and its Northern European neighbours, inventories and their objects tend to be analysed from two perspectives: the Burgundian court and the ‘consumer revolution’. Applying insights from Erving Goffman and Bruno Latour, this article suggests a third perspective should have priority: the urban ‘theatre’ within which objects were documented and placed. Therefore it sets up an alternate methodology which begins with the inventory to build a picture of the theatre (the urban context and residence), the actors (the Aubert family) and the audience (the witnesses of the inventory) to establish new insights on the operation of Burgundian power and the dynamics of the ‘consumer revolution’

Calibration of key temperature-dependent ocean microbial processes in the cGENIE.muffin Earth system model

Temperature is a master parameter in the marine carbon cycle, exerting a critical control on the rate of biological transformation of a variety of solid and dissolved reactants and substrates. Although in the construction of numerical models of marine carbon cycling, temperature has been long-recognised as a key parameter in the production and export of organic matter at the ocean surface, it is much less commonly taken into account in the ocean interior. There, bacteria (primarily) transform sinking particulate organic matter into its dissolved constituents and thereby consume dissolved oxygen (and/or other electron acceptors such as sulphate) and release nutrients, which are then available for transport back to the surface. Here we present and calibrate a more complete temperature-dependent representation of marine carbon cycling in the cGENIE.muffin Earth system model, intended for both past and future climate applications. In this, we combine a temperature-dependent remineralisation scheme for sinking organic matter with a biological export production scheme that also includes a temperature-dependent limitation on nutrient uptake in surface waters (and hence phytoplankton growth). Via a parameter ensemble, we jointly calibrate the two parameterisations by statistically contrasting model projected fields of nutrients, oxygen, and the stable carbon isotopic signature (δ13C) of dissolved inorganic carbon in the ocean, with modern observations. We find that for the present-day, the temperature-dependent version shows as-good-as or better fit to data than the existing tuned non-temperature dependent version of the cGENIE.muffin. The main impact of adding temperature-dependent remineralisation is in driving higher rates of remineralisation in warmer waters and hence a more rapid return of nutrients to the surface there – stimulating organic matter production. As a result, more organic matter is exported below 80 m in mid and low latitude warmer waters as compared to the standard model. Conversely, at higher latitudes, colder water temperature reduces the rate of nutrient supply to the surface as a result of slower in-situ rates of remineralisation. We also assess the implications of including a more complete set of temperature-dependent parameterisations by analysing a series of historical transient experiments. We find that between the pre-industrial and the present day, in response to a simulated air temperature increase of 0.9 °C and ocean warming of 0.12 °C (0.6 °C in surface waters and 0.02 °C in deep waters), a reduction in POC export at 80 m of just 0.3 % occurs. In contrast, with no assumed temperature-dependent biological processes, global POC export at 80 m falls by 2.9 % between the pre-industrial and present day as a consequence of ocean stratification and reduced nutrient supply to the surface. This suggests that increased nutrient recycling in warmer conditions offsets some of the stratification-induced surface nutrient limitation in a warmer world, and that less carbon (and nutrients) then reaches the inner and deep ocean. This extension to the cGENIE.muffin Earth system model provides it with additional capabilities in addressing marine carbon cycling in warmer past and future worlds

Identification of two distinct structural regions in a human porcine endogenous retrovirus receptor, HuPAR2, contributing to function for viral entry

<p>Abstract</p> <p>Background</p> <p>Of the three subclasses of Porcine Endogenous Retrovirus (PERV), PERV-A is able to infect human cells via one of two receptors, HuPAR1 or HuPAR2. Characterizing the structure-function relationships of the two HuPAR receptors in PERV-A binding and entry is important in understanding receptor-mediated gammaretroviral entry and contributes to evaluating the risk of zoonosis in xenotransplantation.</p> <p>Results</p> <p>Chimeras of the non-permissive murine PAR and the permissive HuPAR2, which scanned the entire molecule, revealed that the first 135 amino acids of HuPAR2 are critical for PERV-A entry. Within this critical region, eighteen single residue differences exist. Site-directed mutagenesis used to map single residues confirmed the previously identified L109 as a binding and infectivity determinant. In addition, we identified seven residues contributing to the efficiency of PERV-A entry without affecting envelope binding, located in multiple predicted structural motifs (intracellular, extracellular and transmembrane). We also show that expression of HuPAR2 in a non-permissive cell line results in an average 11-fold higher infectivity titer for PERV-A compared to equal expression of HuPAR1, although PERV-A envelope binding is similar. Chimeras between HuPAR-1 and -2 revealed that the region spanning amino acids 152–285 is responsible for the increase of HuPAR2. Fine mapping of this region revealed that the increased receptor function required the full sequence rather than one or more specific residues.</p> <p>Conclusion</p> <p>HuPAR2 has two distinct structural regions. In one region, a single residue determines binding; however, in both regions, multiple residues influence receptor function for PERV-A entry.</p

Luxury Textiles in Italy, the Low Countries and Neighbouring Territories (Fourteenth to Sixteenth Centuries): A Conceptual Investigation

This book chapter is not available through ChesterRepThroughout human history luxury textiles have been used as a marker of importance, power and distinction. Yet, as the essays in this collection make clear, the term ‘luxury’ is one that can be fraught with difficulties for historians. Focusing upon the consumption, commercialisation and production of luxury textiles in Italy and the Low Countries during the late medieval and early modern period, this volume offers a fascinating exploration of the varied and subtle ways that luxury could be interpreted and understood in the past. Beginning with the consumption of luxury textiles, it takes the reader on a journey back from the market place, to the commercialisation of rich fabrics by an international network of traders, before arriving at the workshop to explore the Italian and Burgundian world of production of damasks, silks and tapestries. The first part of the volume deals with the consumption of luxury textiles, through an investigation of courtly purchases, as well as urban and clerical markets, before the chapters in part two move on to explore the commercialisation of luxury textiles by merchants who facilitated their trade from the cities of Lucca, Florence and Venice. The third part then focusses upon manufacture, encouraging consideration of the concept of luxury during this period through the Italian silk industry and the production of high-quality woollens in the Low Countries. Graeme Small draws the various themes of the volume together in a conclusion that suggests profitable future avenues of research into this important subject