The Encoding-Error Model of Pathway Completion without Vision

We present a model that accounts for errors in short-cutting to complete a triangular pathway by individuals deprived of visual input. The model assumes that systematic error arises from components of navigation concerned with encoding an internal representation of the pathway, rather than the computation of a homeward trajectory or motor output per se. Subjects' tendency to compress the range of actually produced turns and distances, in comparison to the range of correct values, is attributed to regression toward the mean of encoded values during encoding of segments and turns, in the face of uncertainty about the actual values. Individual-subject variations are attributed to differences in the encoding-function parameters, not to variations in the processes themselves. The model provides excellent accounts of data obtained with triangular pathways but fares less well when pathway complexity increases, at which point errors do not appear to be solely attributable to encoding processes. The sources of error identified by the model are likely to play a role in navigation more generally.     

Regional strategic assets and the location strategies of emerging countries’ multinationals in Europe

This paper explores the location strategies of multinational enterprises (MNEs) from emerging countries (EMNEs) in search for regional strategic assets. The analysis is based on a systematic comparison between EMNEs and multinationals from advanced countries (AMNEs) in order to unveil similarities and differences between these two major sources of foreign investment into the regions of the European Union. The empirical results suggest that EMNEs follow a distinctive logic in their location strategies. They are attracted by the availability of technological competences only when their subsidiaries pursue more sophisticated and technology-intensive activities. Conversely, EMNEs share some behavioural similarities with AMNEs in their response to the spatial agglomeration of investments.     

Religious Transformations in the Middle Ages: Towards a New Archaeological Agenda

UNDERSTANDING RELIGIOUS CHANGE between the collapse of the Roman Empire and the Reformation forms one of the cornerstones of medieval archaeology, but has been riven by period, denominational, and geographical divisions. This paper lays the groundwork for a fundamental rethink of archaeological approaches to medieval religions, by adopting an holistic framework that places Christian, pagan, Islamic and Jewish case studies of religious transformation in a long-term, cross-cultural perspective. Focused around the analytical themes of ‘hybridity and resilience’ and ‘tempo and trajectories’, our approach shifts attention away from the singularities of national narratives of religious conversion, towards a deeper understanding of how religious beliefs, practices and identity were renegotiated by medieval people in their daily lives.     

A collective biography of joy in academic practice

Changing working conditions at many universities over the past decade have meant longer hours, intensified record-keeping, and more precarious employment. Despite these changes, many academics still insist that we enjoy our jobs. Our inquiry is oriented toward spaces and practices that bring us joy in our daily work and help us withstand the negative effects of working in academia. This article reports on our exploration of some moments of joy at work as part of our own academic practice. Through a feminist methodology known and developed as collective biography, we wrote individual memories of joy in our teaching, publishing, and collaborating, together at a writing retreat. As we analyzed these recalled moments, we came to realize that joy emerges through a turbulent process fueled by a cocktail of emotions. In fact, we came to understand joy as affect, with affect seen as a certain sort of excess, generated around and through sensations that might contribute to feelings such as celebration, happiness, or surprise as well as fear, anger, or embarrassment. We conclude that joy does things, that it can be transformative, and that cultivating joy in academia is part of a radical praxis.     

Flies,manure, and window screens: medical entomology and environmental reform in early-twentieth-century US cities

This paper traces responses to house flies in US cities as health departments attempted to control pollution and disease in the early twentieth century. It speaks to other historical geographies about the state, citizens, and the urban environment by showing how medical entomology prescribed contradictory changes to civic and domestic space, and how urban people and nature resisted these changes. With the advent of medical entomology, health reformers came to see house flies as agents that wove the entire city together as an interconnected ecology, carrying diseases from neighborhood to neighborhood and across the threshold of the home. But different reformers argued for quite distinct exercises of power in the urban landscape and ecological processes. Some physicians and entomologists argued that the state must modernize networks of fly-breeding organic matter, most notably horse manure and human waste. Such interventions were intended to be preventive and holistic, and aimed to protect all city dwellers. Other reformers, however, doubted the capacity of the state to tame material flows of waste, and instead sought changes to domestic space that would require householders – especially women – to shore up the boundaries of the house against flies. When city governments adopted these distinct interventions they encountered quite distinct sorts of resistance because of the house fly's tight links with urban nature and domestic practices.