1,164 research outputs found
Building and implementing knowledge: research and innovation inspired by the evolution of modern stadia.
This paper summarises how the evolution and advancement in sports stadia design within Arup, over the last 10 years, has been used as a catalyst for applied research programmes. The North West Structures Group has collaborated with several universities (UK and US based) to advance technical knowledge and understanding, and to ensure on-going innovation. Five doctoral research programmes have been produced focussing on critical issues such as crowd induced vibration, robustness of cable supported structures subjected to high velocity fragment impact, structural and geometrical optimisation and, design management. This paper will highlight some of the results obtained from each of these research programmes and how they have and can be filtered back into design. The primary aim of this paper is to demonstrate how opportunities can be seized when working on design projects to collaborate with universities and provide a platform for project based innovation in the construction industry
Frenetic: A High-Level Language for OpenFlow Networks
Network administrators must configure network devices to simultaneously provide several interrelated services such as routing, load balancing, traffic monitoring, and access control. Unfortunately, most interfaces for programming networks are defined at the low level of abstraction supported by the underlying hardware, leading to complicated programs with subtle bugs. We present Frenetic, a high-level language for OpenFlow networks that enables writing programs in a declarative and compositional style, with a simple "program like you see every packet" abstraction. Building on ideas from functional programming, Frenetic offers a rich pattern algebra for classifying packets into traffic streams and a suite of operators for transforming streams. The run-time system efficiently manages the low-level details of (un)installing packet-processing rules in the switches. We describe the design of Frenetic, an implementation on top of OpenFlow, and experiments and example programs that validate our design choices.Office of Naval Research grant N00014-09-1-0770 "Networks Opposing Botnets
ImpaCT2: the impact of information and communication technologies on pupil learning and attainment
The report explores the impact of networked technologies on patterns of use of ICT in English, Mathematics and Science at Key Stages 2, 3 and 4 and the relative gain for high ICT users versus low ICT users in each of these subjects. This publication reports primarily on the outcomes of
Strand 1, but draws on some material from the other
strands of the study. ImpaCT2 was a major longitudinal study (1999-2002) involving 60 schools in England, its aims were to: identify the impact of networked technologies on the school and out-of-school environment; determine whether or not this impact affected the educational attainment of pupils aged 8 - 16 years (at Key Stages 2, 3, and 4); and provide information that would assist in the formation of national, local and school policies on the deployment of ICT
Distance as a barrier to child and adolescent mental health service access in post-Katrina Orleans Parish
Socially vulnerable populations are more susceptible to the impacts of natural disasters than other groups. An aspect of social vulnerability is lack of access to resources following a disaster. Distance is one barrier that prevents socially vulnerable populations from accessing services. Using 2000 U.S. Census Bureau data and current outpatient child and adolescent mental health facilities in post-Katrina Orleans Parish, Louisiana, this thesis seek to understand if those facilities are located farther from block groups with higher percentages of demographically disadvantaged residents than from block groups with lower percentages of demographically disadvantaged residents. Block group demographic disadvantage is defined in terms of the percent of residents who are African American, the percent of individuals living in poverty, and the percent of households headed by females with children under 18 years old. The sample had 483 block groups in Orleans Parish. Pearson’s r and OLS regression were run comparing linear distance (dependent variable) with the independent variables of percent African American, percent poverty, and percent female-headed households with children under 18 years old. In the bivariate analysis, percent African American and female-headed households were not significantly correlated with linear distance. Percent poverty had a significant negative correlation with linear distance. While the negative association between poverty and distance remained in the in the multivariate analysis, percent African American and percent female-headed were positively correlated, as predicted. ArcGIS was used to create maps showing the percent African-American, poor, and female-headed households in Orleans Parish. The location of the outpatient child and adolescent mental health services were mapped out as well. Analyzing the locations of these facilities showed that there is a lack of facilities in the east of Orleans Parish. Policy planners should consider alternative approaches to providing mental health care for children and adolescents that may reside in non-poor areas with large percentages of African American. Current locations should be maintained since they are near the poorest block groups in the parish. More study is needed for understanding why distance becomes significant for block groups with higher percentages African American or female-headed households with children under 18 years old
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Belief in a Just World: Consumer Intentions and Behaviors Toward Ethical Products
Although consumers report positive attitudes toward ethical goods, their intentions and behaviors often do not follow suit. Just-world theory highlights the conditions under which consumers are most likely to prefer fair-trade products. This theory proposes that people are motivated to construe the world as a just place where people get what they deserve. In the current research, when people are confronted with high levels of injustice (communicated need is high) and avenues for justice restoration seem uncertain or unavailable, assisting others by supporting fair trade decreases. However, highlighting how injustice can be redressed through purchases enhances fair-trade support under conditions of high need. The effects are moderated by justice sensitivity factors, such as just-world beliefs and whether the product type (indulgence vs. necessity) makes the injustice of consumer privilege salient. The results suggest that communicating high need when requesting consumer prosocial actions can sometimes backfire. Marketers employing high need appeals should heighten perceptions of justice restoration potential and activate fairness-related thoughts through product positioning to encourage fair-trade purchases
Participation rates in Aimhigher West: analysis and comparisons
Two linked reports on widening participation in the Aimhigher West partnership area. These conclude, inter alia, that local factors such as school outcomes, labour market conditions and ethnic mix make a significant contribution to defining the higher education participation rate
Financing SME growth in the UK: meeting the challenges after the global financial crisis
In the aftermath of the Global Financial Crisis new forms of SME finance are emerging in the place of traditional banking and equity finance sources. This Special Issue has its origins in a conference organised in June 2014 by the Centre for Enterprise and Economic Development Research (CEEDR) at Middlesex University Business School, where all but the final two papers were presented. The Conference was designed to provide a timely forum for leading academics, practitioners and policy makers to disseminate current research and practitioner knowledge exploring finance gaps and how best to address the financing needs of small high growth potential businesses
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Results from the CERN pilot CLOUD experiment
During a 4-week run in October–November 2006, a pilot experiment was performed at the CERN Proton Synchrotron in preparation for the Cosmics Leaving OUtdoor Droplets (CLOUD) experiment, whose aim is to study the possible influence of cosmic rays on clouds. The purpose of the pilot experiment was firstly to carry out exploratory measurements of the effect of ionising particle radiation on aerosol formation from trace H2SO4 vapour and secondly to provide technical input for the CLOUD design. A total of 44 nucleation bursts were produced and recorded, with formation rates of particles above the 3 nm detection threshold of between 0.1 and 100 cm -3 s -1, and growth rates between 2 and 37 nm h -1. The corresponding H2O concentrations were typically around 106 cm -3 or less. The experimentally-measured formation rates and htwosofour concentrations are comparable to those found in the atmosphere, supporting the idea that sulphuric acid is involved in the nucleation of atmospheric aerosols. However, sulphuric acid alone is not able to explain the observed rapid growth rates, which suggests the presence of additional trace vapours in the aerosol chamber, whose identity is unknown. By analysing the charged fraction, a few of the aerosol bursts appear to have a contribution from ion-induced nucleation and ion-ion recombination to form neutral clusters. Some indications were also found for the accelerator beam timing and intensity to influence the aerosol particle formation rate at the highest experimental SO2 concentrations of 6 ppb, although none was found at lower concentrations. Overall, the exploratory measurements provide suggestive evidence for ion-induced nucleation or ion-ion recombination as sources of aerosol particles. However in order to quantify the conditions under which ion processes become significant, improvements are needed in controlling the experimental variables and in the reproducibility of the experiments. Finally, concerning technical aspects, the most important lessons for the CLOUD design include the stringent requirement of internal cleanliness of the aerosol chamber, as well as maintenance of extremely stable temperatures (variations below 0.1 °C
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