Adjustable drill bar replaces complex jigs

Adjustable drill bar incorporates a micrometer screw which, when used in conjunction with standard gage blocks, provides rapid method of drill hole location and reduces time and skill requirements for precision drilling on large surfaces. Device picks up oddly dimensioned tool hole points and acts as sine drill bar

Concrete manufacture with un-graded recycled aggregates

Purpose – The purpose of this paper is to investigate whether concrete that includes un-graded recycled aggregates can be manufactured to a comparable strength to concrete manufactured from virgin aggregates. Design/methodology/approach – A paired comparison test was used to evaluate the difference between concrete made with virgin aggregates (plain control) and concrete including recycled waste. Un-graded construction demolition waste and un-graded ground glass were used as aggregate replacements. With regard to concrete, compressive strength is widely used as a measure of suitability as being fit for purpose. Therefore compressive strength was mainly used to compare the different concrete batches; however density was measured across the range of samples. Findings – The findings show that a lower average compressive strength is achieved when compared to the plain control sample manufactured with virgin aggregates. Correct particle packing may not be achieved and grading of aggregates is essential prior to mix design. The recycled aggregate was highly variable in terms of the fine particle content, which affected the water demand of the concrete. Practical implications – This manufacturing practice is considered necessary because of the current trend in using waste products in concrete to replace binders and aggregates; thus reducing the impact on the environment and use of finite natural resources. The research shows the risk of mixing concrete using a simple aggregate replacement without careful aggregate grading and adjustments to the mix design. Originality/value – The paper examines 100 per cent ungraded aggregate replacement with glass and demolition waste

Spatial demonstratives, perceptual space, and linguistic diversity

versus extrapersonal space; object location memor

A Hybrid Neural Network and Virtual Reality System for Spatial Language Processing

This paper describes a neural network model for the study of spatial language. It deals with both geometric and functional variables, which have been shown to play an important role in the comprehension of spatial prepositions. The network is integrated with a virtual reality interface for the direct manipulation of geometric and functional factors. The training uses experimental stimuli and data. Results show that the networks reach low training and generalization errors. Cluster analyses of hidden activation show that stimuli primarily group according to extra-geometrical variables

Predictive eye movements are driven by goals, not by the mirror neuron system

The importance of a mirror neuron system (MNS) as a mecha-nism for understanding the actions of others has been estab-lished (e.g., Rizzolatti, Fadiga, Gallese, & Fogassi, 1996). Neurons in the primate premotor cortex fire both when a monkey performs an action (e.g., grasping) and when the monkey ob-serves someone else performing the same action. It has also been proposed that theMNS is the starting point for understanding the intentions and goal-directed behavior of others (Fogassi et al., 2005; Gallese & Goldman, 1998). Consistent with this view, Falck-Ytter, Gredebäck, and von Hofsten (2006) argued that the MNS is implicated in proactive goal-directed (predictive) eye movements. In a series of eye-tracking studies, participants observed a toy object moving along a trajectory toward a con-tainer. Adults and 1-year-old infants looked ahead of the toy and toward the goal container only when a hand was observe

Strengthening OA practice: using intervention logic to support drives for change

The aim of the JISC Open Access (OA) Pathfinder programme is to “develop shareable models of good practice with regard to implementation of research funders’ OA requirements”. With the sector-wide shift to OA and with growing funders’ OA mandates, the Pathfinder scheme reflects a real need to enhance compliance with the agenda. Fundamental to this project is understanding how people approach OA, and how processes can be designed to address this. This brief paper summarises an approach to building stronger institutional approaches to Open Access using intervention logic. The process, drawn from a behaviour change intervention framework supports research management and library staff to explore the key areas of change needed and consider how best to address these. The intervention mapping tool which was first trialled at a workshop on Uncovering researcher behaviours at Oxford Brookes on 20 May 2015 is supplied at the end of this document to support this process

Double jeopardy : a socio-demographic profile of homeless jobseekers aged 18-35

This article reports on socio-demographic research that was undertaken as part of a broader project to improve service delivery to homeless jobseekers aged 18-35 years (Grace et 01 2005). The broader project, known as Yp4, is a randomised controlled trial of joined up services and programs for young homeless jobseekers. Yp4 is an initiative of four organisations: Hanover Welfare Services, Brotherhood of St Laurence, Melbourne Citymission and Loddon Mallee Housing Services This paper does not provide detailed information about the Yp4 trial, rather it reports on socio-demographic research undertaken to set the context in which Yp4 operates. For further details regarding Yp4 please see Horn (2004). When we set out to prepare a socio-demographic profile of homeless jobseekers aged 18-35 years, we found two main ways to count homelessness and at least two ways to quantify unemployment. Obtaining data and assessing its quality was far from easy, and this research was an exercise in frustration and perseverance. In this article we discuss the complexities of counting homelessness and unemployment, and the educated guesswork involved in estimating numbers of homeless jobseekers. We present a tentative socio-demographic profile; and we make suggestions regarding better access to data in the future

Technological Change in the Retirement Transition and the Implications for Cybersecurity Vulnerability in Older Adults

Retirement is a major life transition, which leads to substantial changes across almost all aspects of day-to-day life. Although this transition has previously been seen as the normative marker for entry into older adulthood, its influence on later life has remained relatively unstudied in terms of technology use and cybersecurity behaviours. This is problematic as older adults are at particular risk of becoming victims of cyber-crime. This study aimed to investigate which factors associated with the retirement transition were likely to increase vulnerability to cyber-attack in a sample of 12 United Kingdom based older adults, all of whom had retired within the past 5 years. Semi-structured, one to one interviews were conducted and subsequently analysed using thematic analysis. Six themes were identified referring to areas of loss in: social interaction, finances, day-to-day routine, feelings of competence, sense of purpose, and technology support structures. We discuss the implications of these losses for building cyber-resilience in retirees, with suggestions for future research

Users' trust in information resources in the Web environment: a status report

This study has three aims; to provide an overview of the ways in which trust is either assessed or asserted in relation to the use and provision of resources in the Web environment for research and learning; to assess what solutions might be worth further investigation and whether establishing ways to assert trust in academic information resources could assist the development of information literacy; to help increase understanding of how perceptions of trust influence the behaviour of information users