Wide-address spaces - exploring the design space

In a recent issue of Operating System Review, Hayter and McAuley [1991] argue that future high-performance systems trade a traditional, bus-based organization for one where all components are linked together by network switches (the Desk-Area Network). In this issue of Operating System Review, Leslie, McAuley and Mullender conclude that DAN-based architectures allow the exploitation of shared memory on a wider scale than just a single (multi)processor. In this paper, we will explore how emerging 64-bit processors can be used to implement shared address spaces spanning multiple machines

New Ethernet Based Optically Transparent Network for Fiber-to-the-Desk Application

We present a new optical local area network architecture based on multimode optical fibers and components, short wavelength lasers and detectors and the widely used fast Ethernet protocol. The presented optically transparent network represent a novel approach in fiber-to-the-desk applications. It is made to minimize the costs associated with a passive optical LAN implementation. The biggest issues in the realization of the network are the synchronization of bursty traffic and collision detection. We present, in detail, the solution to the synchronization problem by introducing an analog sinusoidal carrier that is in addition to the data signal only sent within the data packet duration. The extraction of data and the synchronization signal is made by using simple filtering, facilitating the receiver realization

Academic staff development in the area of technology enhanced learning in the UK HEIs

This paper reports on a study on staff development in the area of technology enhanced learning in UK Higher Education Institutions (HEIs) that took place in November 2011. Data for this study were gathered via an online survey emailed to the Heads of e-Learning Forum (HeLF) which is a network comprised of one senior member of staff per UK institution leading the enhancement of learning and teaching through the use of technology. Prior to the survey, desk-based research on some universities’ publicly available websites gathered similar information about staff development in the area of technology enhanced learning. The online survey received 27 responses, approaching a quarter of all UK HEIs subscribed to the Heads of e-Learning forum list (118 is the total number). Both pre-1992 (16 in number) and post-1992 Universities (11 in number) were represented in the survey and findings indicate the way this sample UK HEIs are approaching staff development in the area of TEL. The survey’s main research question was ‘what provision do UK HEIs make for academic staff development in the area of technology enhanced learning’. Twelve questions, both closed and open-ended, were devised in order to gather enough information about how staff development needs in the area of technology enhanced learning are addressed by different UK institutions. Following the justification of the adopted research methodology, the findings from the online survey are analyzed and discussed and conclusions are drawn

Novel Ethernet Based Optical Local Area Networks for Computer Interconnection

In this paper we present new optical local area networks for fiber-to-the-desk application. Presented networks are expected to bring a solution for having optical fibers all the way to computers. To bring the overall implementation costs down we have based our networks on short-wavelength optical components, multimode optical fibers, multimode polymer-based integrated-optic devices and widely used fast Ethernet protocol. A new physical layer device that can be attached to the existing network interface card has been developed and implemented such that computers can exchange data using our new networks

Creating Pathways to Develop Student Professionalism - A New Direction

The 2007-2008 academic year brought a new program of student employment to our IT department called IT Fellows. This program brings together the technological skills of IT along with soft business skills to assist our student employees in becoming well-rounded individuals fully prepared for life after college. In previous years our primary area of student employment was the Help Desk in which there was a tiered system in place with opportunities for resume and interview experience, raises, and promotions. The area of training needed further development and the move to the new program provided enhanced opportunities for training at all levels of employment. First-year candidates attend a week-long Leadership Academy, followed by a full year of training in four six-week rotations of their choice, after which they interview for year-long assignments as interns. Internship opportunities are provided in all areas of the department as well as some campus departments outside of IT, and provide transcript credit for them to carry forward in their prospective careers. As they progress, some upper-class Fellows become mentors, coaches, managers, and trainers themselves. All Fellows participate in educational seminars throughout the year which address many areas of technology and professionalism. Come journey with us as we explore the new terrain of students as colleagues, and the benefits of expanding time staff as well as student employees

Understanding audiences from industry sectors in knowledge exchange

This essay discusses the concept of Knowledge Exchange between industry and academia. In particular it focuses on ways in which academic organisations can learn about different industry sectors in order to identify potential Knowledge Exchange partners and how they operate. Three case studies of scoping approaches taken in the understanding of these audiences are presented followed by a discussion of their different strengths and weaknesses. This essay concludes with presentation of an initial framework for scoping and suggestions for where this work can be developed in the future

The process of setting micronutrient recommendations: a cross-European comparison of nutrition-related scientific advisory bodies

Copyright @ The Authors 2010Objective: To examine the workings of the nutrition-related scientific advisory bodies in Europe, paying particular attention to the internal and external contexts within which they operate. Design: Desk research based on two data collection strategies: a questionnaire completed by key informants in the field of micronutrient recommendations and a case study that focused on mandatory folic acid (FA) fortification. Setting: Questionnaire-based data were collected across thirty-five European countries. The FA fortification case study was conducted in the UK, Norway, Denmark, Germany, Spain, Czech Republic and Hungary. Results: Varied bodies are responsible for setting micronutrient recommendations, each with different statutory and legal models of operation. Transparency is highest where there are standing scientific advisory committees (SAC). Where the standing SAC is created, the range of expertise and the terms of reference for the SAC are determined by the government. Where there is no dedicated SAC, the impetus for the development of micronutrient recommendations and the associated policies comes from interested specialists in the area. This is typically linked with an ad hoc selection of a problem area to consider, lack of openness and transparency in the decisions and over-reliance on international recommendations. Conclusions: Even when there is consensus about the science behind micronutrient recommendations, there is a range of other influences that will affect decisions about the policy approaches to nutrition-related public health. This indicates the need to document the evidence that is drawn upon in the decisions about nutrition policy related to micronutrient intake.This work has been carried out within the EURRECA Network of Excellence (www.eurreca.org) which is financially supported by the Commission of the European Communities, specific Research, Technology and Development (RTD) Programme Quality of Life and Management of Living Resources, within the Sixth Framework Programme, contract no. 036196