The educational psychologist as a pedagogue for pupils with social, emotional and behavioural difficulties

This thesis reflects my personal and professional journey from teacher to educational psychologist through significant periods in the education of children with Social Emotional and Behavioural Difficulties (SEBDs) in the UK. It also draws of on lessons learnt from my experience working in North America in the early years of my career. The main aims of my research were to: (1) Appraise the contribution an educational psychologist could make in assessing the learning potential of children and young people with SEBDs, and (2) Consider the „added value‟ that an educational psychologist might bring to enable these children as better learners and teachers as better teachers of children with SEBDs. 45 Children and young people with Social Emotional Behavioural Difficulties and their parents and teachers participated in the research. A mixed methods approach was employed to undertake three related case studies and a reflexive and narrative analysis was employed. Main outcomes of the research were (i) SEBDs were almost always accompanied by often unrecognised learning difficulties; (ii) A cognitive assessment by an educational psychologist had an added value in understanding the needs of the child; (iii) When parents and teachers of children who participated in an especially designed intervention, it changed their views of their children‟s behaviours. They reported significant improvement in their children‟s social skills and behaviour. I conclude the thesis by considering the implications of findings for the benefit of children with SEBDs. It is crucial that teachers identify and assess learning difficulties in all children and young people and clearly differentiate these from matters of and interventions for behaviour difficulties. Teachers and parents can be empowered to deal with their children‟s behavioural difficulties by involving the Educational Psychologist as a pedagogue, sitting as he or she does at the crossroads of education and psychology

Investigating Unipolar Switching in Niobium Oxide Resistive Switches: Correlating Quantized Conductance and Mechanism

Memory devices based on resistive switching (RS) have not been fully realised due to lack of understanding of the underlying switching mechanisms. Nature of ion transport responsible for switching and growth of conducting filament in transition metal oxide based RS devices is still in debate. Here, we investigated the mechanism in Niobium oxide based RS devices, which shows unipolar switching with high ON/OFF ratio, good endurance cycles and high retention times. We controlled the boundary conditions between low-conductance insulating and a high-conductance metallic state where conducting filament (CF) can form atomic point contact and exhibit quantized conductance behaviour. Based on the statistics generated from quantized steps data, we demonstrated that the CF is growing atom by atom with the applied voltage sweeps. We also observed stable quantized states, which can be utilized in multistate switching

Dead Reckoning Localization Technique for Mobile Wireless Sensor Networks

Localization in wireless sensor networks not only provides a node with its geographical location but also a basic requirement for other applications such as geographical routing. Although a rich literature is available for localization in static WSN, not enough work is done for mobile WSNs, owing to the complexity due to node mobility. Most of the existing techniques for localization in mobile WSNs uses Monte-Carlo localization, which is not only time-consuming but also memory intensive. They, consider either the unknown nodes or anchor nodes to be static. In this paper, we propose a technique called Dead Reckoning Localization for mobile WSNs. In the proposed technique all nodes (unknown nodes as well as anchor nodes) are mobile. Localization in DRLMSN is done at discrete time intervals called checkpoints. Unknown nodes are localized for the first time using three anchor nodes. For their subsequent localizations, only two anchor nodes are used. The proposed technique estimates two possible locations of a node Using Bezouts theorem. A dead reckoning approach is used to select one of the two estimated locations. We have evaluated DRLMSN through simulation using Castalia simulator, and is compared with a similar technique called RSS-MCL proposed by Wang and Zhu .Comment: Journal Paper, IET Wireless Sensor Systems, 201