User acceptance of cooperative maneuver-based driving--a summary of three studies

Modern cars offer drivers support with the help of a number of driver assistance systems. Those systems aim to relieve drivers through assumption of sub parts of the driving task (e.g. in case of an Adaptive Cruise Control by regulation of vehicle speed and time gap to preceding vehicle). Today, systems are controlled and monitored separately which leads to efforts to combine the functionality of all systems in an overlying assistance for drivers. The approach of the University of Technology Darmstadt is called Conduct-by-Wire and can be seen as a cooperative maneuver-based driving paradigm, where the driver gives maneuver command to the systems which are automatically executed. This paper summarizes the results of three studies which investigated the user acceptance of this driving paradigm. Overall, it can be said that the acceptance of the system depends on personal traits of the driver and on the driving situation. Almost all participants are willing to use Conduct-by- Wire for routine tasks such as commuting, which makes the systems interesting for company cars. Still, there remain a number of drivers who are not willing to use such a highly automated system at all.     

Development of a knowledge management system for complex domains

Deutsche Flugsicherung GmbH, the German Air Navigation Service Provider, follows a systematic approach, called HERA, for investigating incidents. The HERA analysis shows a distinctive occurrence of incidents in German air traffic control in which the visual perception of information plays a key role. The reasons can be partially traced back to workstation design, where basic ergonomic rules and principles are not sufficiently followed by the designers in some cases. In cooperation with the Institute of Ergonomics in Darmstadt the DFS investigated possible approaches that may support designers to implement ergonomic systems. None of the currently available tools were found to be able to meet the identified user requirements holistically. Therefore it was suggested to develop an enhanced software tool called Design Process Guide. The name Design Process Guide indicates that this tool exceeds the classic functions of currently available Knowledge Management Systems. It offers "design element" based access, shows processual and content related topics, and shows the implications of certain design decisions. Furthermore, it serves as documentation, detailing why a designer made to a decision under a particular set of conditions.     

Application of the user-centred design process according ISO 9241-210 in air traffic control

Designing a usable human machine interface for air traffic control is challenging and should follow approved methods. The ISO 9241-210 standard promises high usability of products by integrating future users and following an iterative process. This contribution describes the proceeding and first results of the analysis and application of ISO 9241-210 to develop a planning tool for air traffic controllers.     

Bayesian covariance matrix estimation using a mixture of decomposable graphical models

We present a Bayesian approach to estimating a covariance matrix by using a prior that is a mixture over all decomposable graphs, with the probability of each graph size specified by the user and graphs of equal size assigned equal probability. Most previous approaches assume that all graphs are equally probable. We show empirically that the prior that assigns equal probability over graph sizes outperforms the prior that assigns equal probability over all graphs in more efficiently estimating the covariance matrix. The prior requires knowing the number of decomposable graphs for each graph size and we give a simulation method for estimating these counts. We also present a Markov chain Monte Carlo method for estimating the posterior distribution of the covariance matrix that is much more efficient than current methods. Both the prior and the simulation method to evaluate the prior apply generally to any decomposable graphical model.     

Building the adult protective services system of tomorrow: The role of the APS national voluntary consensus guidelines

In 2015, the Administration for Community Living (ACL) established the first federal “home” for Adult Protective Services (APS). This leadership has included working collaboratively with state Adult Protective Service systems to ensure that older adults and adults with disabilities are afforded the same protections against abuse, neglect, and financial exploitation regardless of where in the country they live. As part of that leadership, ACL created draft Voluntary Consensus Guidelines for State APS Systems. ACL undertook a process of public and stakeholder engagement and analyzed the resulting comments to improve upon the initial draft of the draft to arrive at the final version. This article examines the comments, including the concerns raised by the commenters about specific areas of the Guidelines, areas identified for future research, and reflections and opinions on the role of the federal government in guiding the development of the field of adult protection.     

OPTIMAL SAFETY-STOCK INVESTMENT THROUGH SUBJECTIVE EVALUATION OF STOCKOUT COSTS

This paper solves the problem of setting safety stocks by combining a subjective evaluation of the stockout-cost function with the usual holding-cost function. The technique given in this paper for estimating a decision maker's (DM's) disvalue function for stockouts is robust in terms of the shapes permissible for this function and allows for uncertainty on the part of the DM in expressing his/her trade-offs. The estimation technique could be applied to situations other than the safety-stock problem. We provide an optimization routine for the safety-stock problem which is designed to operate in conjunction with the estimation technique. Safety-stock levels are arrived at iteratively.     

The Impact of Alternative Vendor/ Buyer Communication Structures on the Quality of Purchased Materials

This paper examines the critical interface between manufacturing, purchasing, and quality assurance by exploring the impact of two alternative structures of buyer and vendor communication on attempts to improve the quality of purchased items. Those two structures of communication are the parallel structure and the serial structure. The research analyzes and compares the advantages and disadvantages of these two specific communication structures; the results have implications for both researchers and managers. The analysis of data suggests that the parallel structure is associated with significantly higher levels of quality than the serial structure. From a managerial perspective, the results of the research suggest that manufacturers must consider the parallel communication structure as a viable alternative for improving the quality of purchased components. While this study has helped frame some key managerial issues, the need and opportunity for further research in related areas is delineated.     

Social Mobility,Equity and the Politics of Recruitment

Much reliance has been placed on increased equity as a way of improving social mobility but the evidence base for this view, for example in Britain, looks less and less convincing. Part of the attraction of equity was that it was believed to promote efficiency through the refinement of meritocracy. Sociological theory now suggests that the equation of equity with efficiency may have prevented reforms which would have improved social mobility. This theory fills a gap in the human resource management (HRM) literature to show that it is far from obvious what managers should do to increase organisational efficiency when they make recruitment decisions. Instead of recruiting for efficiency, their decisions are shaped by the politics of recruitment both inside organisations, affecting management decision‐making particularly, and outside organisations amongst legislators and pressure groups (for example). This politics has shaped the way equity figures in recruitment, it has, for the most part, only figured to the extent that it was believed to serve efficiency, yet what counted for efficiency was itself a political product. When it is hide‐bound in this way it is small wonder that insufficient progress has been made in improving social mobility, in Britain and elsewhere, by increasing equity.     

Examining the role of parental factors on depression among Urban African American youth living in public housing

This study examined the potential risk and protective parental factors associated with depression among African American youth living in public housing. Utilizing a community-based participatory research approach, 239 African-American youth surveys were collected during 2013–2014 in two urban public housing developments with low socioeconomic profiles. Over half (52.3%) of the sample was in high school and female (58%). 65.3% reported living with their mother while 38% reported being employed. Bivariate analysis revealed significant correlations between depression and maternal substance abuse, paternal monitoring, parent-child relationship, and family time. Results from the regression analyses indicated that higher depression scores were significantly associated with youth who reported poor parent-child relationships, low levels of paternal supervision and high levels of maternal drug abuse. These findings provide support for claims about the importance of parent-child relationship and paternal monitoring as a protective factor for depressive symptoms, particularly during adolescence. Moreover, findings suggest that interventions which are targeted towards urban African American youth should address parental factors as a pathway to decrease depression among this population.     

Incorporating social networks into leadership development: A conceptual model and evaluation of research and practice

Multilevel and relational views of leadership are expanding the focus of leadership development beyond individuals' knowledge, skills, and abilities to include the networked patterns of social relationships linking members of dyads and larger collectives. In this review, we present a conceptual model explaining how three distinct approaches for network-enhancing leadership development can improve the leadership capacity of individuals and collectives. We then present a review of the leadership development literature and the results of a survey of 282 practitioners to assess the extent to which these approaches have been examined in research and implemented in practice. Our review revealed that leadership research and leadership development practice are outpacing leadership development research in terms of incorporating networks. We aim to spur future research by clarifying the targets, objectives, and underlying mechanisms of each network enhancing leadership development approach in our conceptual model. Further, we identify additional literature, not traditionally considered within the realm of leadership development that may help advance empirical examinations of these approaches.