Analysis of human factors effects on the safety of transporting radioactive waste materials: Technical report

This report examines the extent of human factors effects on the safety of transporting radioactive waste materials. It is seen principally as a scoping effort, to establish whether there is a need for DOE to undertake a more formal approach to studying human factors in radioactive waste transport, and if so, logical directions for that program to follow. Human factors effects are evaluated on driving and loading/transfer operations only. Particular emphasis is placed on the driving function, examining the relationship between human error and safety as it relates to the impairment of driver performance. Although multi-modal in focus, the widespread availability of data and previous literature on truck operations resulted in a primary study focus on the trucking mode from the standpoint of policy development. In addition to the analysis of human factors accident statistics, the report provides relevant background material on several policies that have been instituted or are under consideration, directed at improving human reliability in the transport sector. On the basis of reported findings, preliminary policy areas are identified. 71 refs., 26 figs., 5 tabs

Historical Indigenous Land-Use Explains Plant Functional Trait Diversity

Human land-use legacies have long-term effects on plant community composition and ecosystem function. While ancient and historical land use is known to affect biodiversity patterns, it is unknown whether such legacies affect other plant community properties such as the diversity of functional traits. Functional traits are a critical tool for understanding ecological communities because they give insights into community assembly processes as well as potential species interactions and other ecosystem functions. Here, we present the first systematic study evaluating how plant functional trait distributions and functional diversity are affected by ancient and historical Indigenous forest management in the Pacific Northwest. We compare forest garden ecosystems - managed perennial fruit and nut communities associated exclusively with archaeological village sites - with surrounding periphery conifer forests. We find that forest gardens have substantially greater plant and functional trait diversity than periphery forests even more than 150 years after management ceased. Forests managed by Indigenous peoples in the past now provide diverse resources and habitat for animals and other pollinators and are more rich than naturally forested ecosystems. Although ecological studies rarely incorporate Indigenous land-use legacies, the positive effects of Indigenous land use on contemporary functional and taxonomic diversity that we observe provide some of the strongest evidence yet that Indigenous management practices are tied to ecosystem health and resilience.&nbsp

Disability activism and the politics of scale

In this paper, we examine the role of spatial scale in mediating and shaping political struggles between disabled people and the state. Specifically, we draw on recent theoretical developments concerning the social construction of spatial scale to interpret two case studies of disability activism within Canada and Ireland. In particular, we provide an analysis of how successful the disability movement in each locale has been at 'jumping scale' and enacting change, as well as examining what the consequences of such scaling-up have been for the movement itself. We demonstrate that the political structures operating in each country markedly affect the scaled nature of disability issues and the effectiveness of political mobilization at different scales

Process Mining for Six Sigma

Process mining offers a set of techniques for gaining data-based insights into business processes from event logs. The literature acknowledges the potential benefits of using process mining techniques in Six Sigma-based process improvement initiatives. However, a guideline that is explicitly dedicated on how process mining can be systematically used in Six Sigma initiatives is lacking. To address this gap, the Process Mining for Six Sigma (PMSS) guideline has been developed to support organizations in systematically using process mining techniques aligned with the DMAIC (Define-Measure-Analyze-Improve-Control) model of Six Sigma. Following a design science research methodology, PMSS and its tool support have been developed iteratively in close collaboration with experts in Six Sigma and process mining, and evaluated by means of focus groups, demonstrations and interviews with industry experts. The results of the evaluations indicate that PMSS is useful as a guideline to support Six Sigma-based process improvement activities. It offers a structured guideline for practitioners by extending the DMAIC-based standard operating procedure. PMSS can help increasing the efficiency and effectiveness of Six Sigma-based process improving efforts. This work extends the body of knowledge in the fields of process mining and Six Sigma, and helps closing the gap between them. Hence, it contributes to the broad field of quality management

The human factor: ecological salience in ornithology and ethno-ornithology

At the heart of the interplay between names and knowledge is the relative salience of different taxa. Hunn (1999) described four, semi-overlapping, kinds of salience: phenotypic, perceptual, cultural, and ecological. Whilst the first three are well documented, Ecological Salience remains largely hypothetical in the literature. In this paper I test Hunn’s concept of Ecological Salience by reference to 3,186 recorded English folk-names of British birds. The numbers of names recorded across 57 species represented in this study range from two (Nightingale) to 180 (Grey Heron). A significant positive correlation is demonstrated between the number of recorded folk names for a species and a measure of ubiquity in the 19th Century. Using original bird census data collected by the author for other purposes in the 1990s in farmland and woodland in Oxfordshire, United Kingdom, I demonstrate an overall correlation across Linnaean species between the number of names, number of monolexic names, and three measures of specific relative abundance and distribution. The percentage of names for a species that are monolexic, which is an indicator of familiarity, also correlated with the relative abundance of species in farmland, but this relationship was driven entirely by species with little recorded folklore. For those taxa with documented significance to 19th century and earlier English folk culture, which tend to carry more names than predicted by ecological ubiquity alone, there was no relationship between the extent of monolexis and the relative abundance of a species. The study suggests that Ecological Salience was a significant driver in bird naming in pre-industrial English folk culture, that more frequently encountered species were more likely to develop an associated folklore, but that an effect of acquired cultural salience operated as a driver of overall specific salience, potentially masking the effects of ecological salience