Quadratic Forms on Complex Random Matrices and Multiple-Antenna Systems

This research published in the foremost international journal in information theory and shows interplay between complex random matrix and multiantenna information theory. Dr T. Ratnarajah is leader in this area of research and his work has been contributed in the development of graduate curricula (course reader) in Massachusetts Institute of Technology (MIT), USA, By Professor Alan Edelman. The course name is "The Mathematics and Applications of Random Matrices", see http://web.mit.edu/18.338/www/projects.html

Barriers to Subcontracted Labor Productivity in Urban Development Projects: An On-site Project Management Perspective

Considering the confined and complex nature of urban construction projects, labor productivity is one of the key factors attributing to project success. With the proliferation of sub-contracted labor, there is a necessity to consider the ramifications of this practice to the sector. This research aims to outline how project managers can optimise productivity levels of sub-contracted labor in urban construction projects, by addressing the barriers that most restrict these efficiency levels. A qualitative research approach is employed, incorporating semi-structured interviews based on three case studies from an urban context. The results are scrutinised using mind mapping software and accompanying analytical techniques. The findings from this research indicate that the effective on-site management of sub-contracted labor has a significant impact on the degree of success of an urban development project. The two core barriers to sub-contracted labor productivity are; 1) ineffective supervision of sub-contracted labor, and 2) lack of skilled sub-contracted labor. The implication of this research is that on-site project management play an integral role in the level of productivity achieved by sub-contracted labor in urban development projects. Therefore, on-site management situated in urban, confined construction sites, are encouraged to take heed of the findings herein and address the barriers documented. The value of this research is obtained through consideration of the critical factors; construction management professionals can mitigate such barriers, in order to optimise subcontracted labor productivity on-site.

Risk in Private Finance Initiative Projects::A Public Sector Perspective

The management of public sector risk is increasingly seen as a priority area of UK government policy. This has been highlighted recently by the Prime Minister Gordon Brown who stated that “the issue of public risk is one of the most challenging areas of policy-making for any government” (Strategic Risk, 2008). In response to these challenges, the UK Prime Minister has appointed a new body - the Risk and Regulation Advisory Council (RRAC) which is tasked with improving the way risk to the public is understood and managed. One area of particular concern with regard to the governance of public sector risks involves projects procured via the Private Finance Initiative (PFI). These projects involve long-term contracts, complex multi-party interactions and thus create various risks to public sector clients. Today, most PFI actors acknowledge the potentially adverse effects of these risks and make an effort to prevent or mitigate undesirable results. As a consequence, issues of risk allocation, risk transfer and risk management have become central to the PFI procurement process. This paper provides an overview of the risk categories and risk types which are relevant to the public sector in PFI projects. It analyses risk as a feature of uncertain future project-related events and examines potential pitfalls which can be associated with PFI risk management on the basis of a case study of a high-profile PFI hospital in Scotland. The paper concludes that, despite the trend towards diminished risk profiles during the operational phase, the public sector continues to be exposed to significant risks when engaging in PFI-based procurement.