Search results

Reviews several recent developments in the computer‐based analysis of reliability data. Starting from the traditional Weibull analysis, presents a description of developments which improve and extend the range of reliability analysis. These include: a five‐parameter distribution model for multiple failure modes; a goodness of fit test for data with suspended items; and a model selection technique which identifies the preferred distribution model, taking account of the number of failures, the number of suspensions and the number of parameters estimated from the data.

Introduces a special issue on globalization and the welfare state. Asserts that economic globalization constrains national economic and social policy far more now than ever before, although the level of international trade has not increased that much compared to levels at the beginning of this century. Talks about the political consequences of economic globalization, particularly welfare state retrenchment in the advanced capitalist world. Outlines the papers included in this issue – comparing welfare system changes in Sweden, the UK and the USA; urban bias in state policy‐making in Mexico; and the developing of the Israeli welfare state. Concludes that economic globalization has a limited effect in shaping social welfare policy in advanced capitalist countries; nevertheless, recommends further research into which aspects of economic globalization shape social welfare policy.

Genetic risk for depressive disorders is poorly understood despite consistent suggestions of a high heritable component. Most genetic studies have focused on risk associated with single variants, a strategy which has so far only yielded small (often non-replicable) risks for depressive disorders. In this paper we argue that more substantial risks are likely to emerge from genetic variants acting in synergy within and across larger neurobiological systems (polygenic risk factors). We show how knowledge of major integrated neurobiological systems provides a robust basis for defining and testing theoretically defensible polygenic risk factors. We do this by describing the architecture of the overall stress response. Maladaptation via impaired stress responsiveness is central to the aetiology of depression and anxiety and provides a framework for a systems biology approach to candidate gene selection. We propose principles for identifying genes and gene networks within the neurosystems involved in the stress response and for defining polygenic risk factors based on the neurobiology of stress-related behaviour. We conclude that knowledge of the neurobiology of the stress response system is likely to play a central role in future efforts to improve genetic prediction of depression and related disorders.

The internationalization of United States higher education has been described as a “two-way street” where students arrive at knowledge transfer. That transfer occurs through a curriculum deemed “unidirectional” with no relevance to local issues or needs and results in limited application and educational colonialism perceptions. Specific to leadership education, the extant literature presents implications of neglect to cultural contexts traditionally reflected in the curriculum within a host nation. We used an explanatory mixed methods design for this study to investigate the degree to which undergraduate Western-based leadership studies courses taught in China reflect the notion of “neocolonialism” by prioritizing Western interests and values.

While the study’s quantitative results reveal cultural differences in leadership education concepts, the qualitative follow-up phase finds students’ appreciation in the utility of leadership concepts and knowledge gained from the leadership curriculum. Students could cite specific situations in which they employed leadership concepts acquired from their respective leadership courses.

Workplace voice is well-established and encompasses behaviors such as prosocial voice, informal complaints, grievance filing, and whistleblowing, and it focuses on interactions between the employee and supervisor or the employee and the organizational collective. In contrast, our chapter focuses on employee prosocial advocacy voice (PAV), which the authors define as prosocial voice behaviors aimed at preventing harm or promoting constructive changes by advocating on behalf of others. In the context of a healthcare organization, low quality and unsafe patient care are salient and objectionable states in which voice can motivate actions on behalf of the patient to improve information exchanges, governance, and outreach activities for safer outcomes. The authors draw from the theory and research on responsibility to intersect with theories on information processing, accountability, and stakeholders that operate through voice between the employee-patient, employee-coworker, and employee-profession, respectively, to propose a model of PAV in patient-centered healthcare. The authors complete the model by suggesting intervening influences and barriers to PAV that may affect patient-centered outcomes.

This chapter critically evaluates the opportunities and challenges in adopting information technology for enhancing transportation in developing countries. The conception framework emerging from this study highlights four key stakeholders and the country context in developing and integrating information technology for improving transportation in developing countries – Tech developers, Transporters, Transport Tech start-ups and Travellers. This study makes cogent theoretical contributions to the growing body of works around technological innovation, smart mobility and intelligent transport systems, albeit from a developing country perspective. This study has also emerged from managerial implications for stakeholders, especially the tech developers, transporters and transport tech start-ups. There is a need for innovative ideas to address the inherent transportation challenges in Africa, and the customers are counting on these stakeholders to make the technology readily available and accessible.

This paper represents a hybrid Vision/INS system for tool tracking applications. The proposed system incorporates low cost MEMS sensors and low cost vision type sensors for tracking industrial tools. Vision systems alone have to deal with the problem of “line of sight” and the INS sensor alone will encounter an exponential drift, which render both systems useless for the proposed application.

The Vision/INS system with the integration of the extended Kalman filter calculates 6D position‐orientation of a tool during its operation within the required accuracy tolerance specific to the application at hand. In this paper, a tool motion modeling approach is proposed to limit the error in an acceptable range for a short period of missing data. The motion of the tool is modeled and updated at any time that the instrument is in the camera view field. This model is applied to the estimation algorithm whenever the camera is not in line of site and the optical data is missing.

The result of applying motion modeling is shown that the resulted error due to absence of the vision measurement system was bounded and decreased (see the experimental results).

In this paper, the tool motion modeling is proposed to bind the error in the acceptable range for a short period of missing data. The motion of the tool is modeled and updated at any time that the instrument is in the camera view field. This model is applied to the estimation algorithm whenever the camera is not in line of site and the optical data is missing.

Exploitation of project opportunities may bring more benefits than stipulated in the initial business case, and even stakeholder benefits that nobody thought of at the project initiation. The purpose of this paper is to suggest a new research area for megaprojects, i.e. the phenomenon of project opportunity exploitation as a means to increase the project benefits.

This is a single case study of an infrastructure megaproject, i.e. the construction and operation of a 50+ years old American bridge. Data cover information regarding 60+ years old historical documents, newspaper articles, interviews and video-recordings.

The findings of this paper are as follows: exploiting all opportunities created by the project and increasing project benefits require involvement from many categories of stakeholders; stakeholders get more involved in exploiting the opportunities created by the project when they are proud of the project; for some of the project-related opportunities, it might take a long time before they can be exploited (and related benefits achieved); and celebrating achievements of the project stimulate stakeholders to exploit opportunities created by the project and contribute to further project benefits.

Only few interviews were conducted. Interviewees were biased as all were very proud of the bridge. This is a single case study of a “rare species”, not representing most megaprojects.

To enhance project opportunity exploitation and increased benefits, the project owner (team) must continuously communicate about the project, also after project execution.

This study contributes to a gap within the literature on the phenomenon “project opportunity exploitation”. This is a very rich case study and of a “rare species”.