Correlations and Binding in 4D Dynamical Triangulation

We study correlations on the euclidean spacetimes generated in Monte Carlo simulations of the model. In the elongated phase, curvature correlations appear to fall off like a fractional power. Near the transition to the crumpled phase this power is consistent with 4. We also present improved data of our computations of the binding energy of test particles.Comment: 4 pages for proceedings Lattice '95; latex, espcrc2.sty and postscript figure files packed with uufiles; corrected packing, contents of paper unchange

Lessons Learned from Designing the Montium - a Coarse-Grained Reconfigurable Processing Tile

In this paper we describe in retrospective the main results of a four year project, called Chameleon. As part of this project we developed a coarse-grained reconfigurable core for DSP algorithms in wirelessdevices denoted MONTIUM. After presenting the main achievements within this project we present the lessons learned from this project

Re: The impact of communicating genetic risks of disease on risk-reducing health behaviour: systematic review with meta-analysis (Rapid Response to Hollands et al)

Hollands et al provide an important contribution to evidence on the potential impact of DNA-based disease risk information on health behaviours. Based on the findings of their systematic review and meta-analysis, the authors conclude that: “existing evidence does not support expectations that such interventions could play a major role in motivating behaviour change to improve population health (1).” However, we contend that this conclusion is premature. In particular, there has been limited population-based research using risk estimates based on multiple genomic variants, for a broad range of health behaviours, and lack of evaluation of whether the impact may be influenced by the presence of other risk factors. We also agree with other rapid responses (Hay and McBride, Janssens, Burton) that highlight other limitations of the previous studies and the need for more research to more fully assess the potential role of genomics in facilitating behaviour change

Perception of Information Technology Enablers for Effective Supply Chain Management

This paper reports a study on the importance of enablers in order for IT to support effective supply chain management, as perceived defined by different positions in the supply chain. In the study, a significant difference for the enabler “Funds for IT enablement” is found between the supplier position and other positions. Furthermore relations between the enablers are examined and research is done into why certain factors are being perceived more important than others

Is business strategy from a positioning and resourcebased perspective relevant for national institutions?

To ascertain whether business strategy is relevant for national institutions a distinction is made between private businesses and institutions as “social business units” of a country. In “social businesses” as well as in private businesses, efficiency is the desired outcome. However, in private businesses it is about sustainable competitive advantage while in institutions it is about policies to resolve the socio and economic problems that a country faces in order to increase welfare of society as a whole. The conclusion is that business strategy form the positioning and resource-based perspectives, does not apply to social businesses such as national institutions

Cooperation Issues in Developing the BOP Market

Interest in the notion that there is an untapped market with significant buying power hidden at the base of the economic pyramid (BOP) has enjoyed increased attention over the last few years. The discourse on this matter is lively and abounds with opposing opinions. Although this discourse is acknowledged in this paper, it is argued that benefits can be derived for all parties if one considers partner cooperation issues (or problems) in a structured way. Partner cooperation in the case of this research refers to the cooperation between multinational information technology companies and local partners in African countries. This area is of interest because of (frequently high) expectations that information and communication technology (ICT) can make a contribution toward development goals in BOP markets. However this is not always achieved and, as has been found by several researchers, this unfavorable outcome is, amongst other things caused by cooperation problems between partners. The basic argument of this paper is that successful contribution of ICT to development goals is partly dependent on the nature of the cooperation between partners. Thus if there is a need to assess the contribution of ICT, then one needs to look further than just the basic quantitative measures and include cooperation issues as criteria for success. The purpose of the research reported in this paper was therefore to take one step closer towards a framework of cooperation issues in so-called BOP projects, specifically in the ICT arena, with the ultimate aim of developing a way to assess factors that may present a risk to the success of these projects. This framework could serve as the foundation for further research into developing a diagnostic instrument for this purpose. The research was conducted in 10 BOP projects involving multinational ICT companies, which were studied as separate case studies. Qualitative data was collected using the case study method and the data was analyzed for emerging patterns. It was found that problems with partner cooperation revolve around six core categories. These are explained in this paper. It is suggested that further research can serve to interrogate the proposed framework

Sustainability in Information and Communications Technology (ICT) Projects

Sustainability is without doubt one of the most important challenges of our time. How can we develop prosperity, without compromising the life of future generations? Companies are integrating concepts of sustainability in their marketing, corporate communications, annual reports and in their actions. It is for that reason that sustainability is rapidly gaining importance as a criteria in the selection and execution of information and communication technology (ICT) projects. This paper explores the impact of the concepts of sustainability on ICT projects. Based on a literature review of the concepts of sustainability, and the role of ICT in sustainability, we will apply the concepts of sustainability to ICT projects and create a framework for developing sustainability indicators in ICT projects. We will conclude the paper by reporting a small scale expert research project that explored the application of sustainability in projects today. In this study we found that the concept of sustainability is not really recognized in projects and project management yet

Laplacian Abelian Projection: Abelian dominance and Monopole dominance

A comparative study of Abelian and Monopole dominance in the Laplacian and Maximally Abelian projected gauges is carried out. Clear evidence for both types of dominance is obtained for the Laplacian projection. Surprisingly, the evidence is much more ambiguous in the Maximally Abelian gauge. This is attributed to possible ``long-distance imperfections'' in the maximally abelian gauge fixing.Comment: LATTICE98(confine), 3 page

Design of an optical nanoantenna with focusing subwavelength grating couplers and metallic reflector

In the development of integrated large-scale optical phase array, compact optical nanoantennas are needed. For high resolution arrays, the nanoantenna footprint and the separation between them should be as small as possible to reduce the number of interference orders in the far field [1]. In the development of this nanoantennas in our InP membrane on Silicon (IMOS) platform [2], we use deeply etch focusing grating to reduce the size [3]. In order to increase the optical power emitting up, we add a metal reflector of Silver underneath the semiconductor with a small buffer of 50 nm of 푆푖푂2. This metal layer will also works as a thermal heater, which will change the optical properties of the semiconductor changing the direction of the upcoming light. The last element to be add is a subwavelength ridge which reduces the unwanted Fresnel reflections by reducing the refractive index contrast [3]