‘Balancing’ the ‘live’ use of resources towards the introduction of the iterative numerical method

This paper draws on the Knowledge Quartet (Rowland, Huckstep, & Thwaites, 2005) to analyse an introductory to the Iterative Numerical Method Year 13 lesson of a secondary mathematics teacher who uses a range of paper based and electronic resources including Autograph, a mathematics-education software. Data were collected during one lesson observation and a follow up interview with the teacher. Analysis identifies the different aspects of the Knowledge Quartet dimensions: foundation, transformation, connection and contingency, in relation to the introduction to the Iterative method and to the teaching of Year 13 students. Findings demonstrate how the teacher used students’ contributions as resource for his teaching; how he balanced his use of resources; and how he created connections between these resources while he remained attentive to exam requirement

Anisotropic Transport Properties of Ferromagnetic-Superconducting Bilayers

We study the transport properties of vortex matter in a superconducting thin film separated by a thin insulator layer from a ferromagnetic layer. We assume an alternating stripe structure for both FM and SC layers as found in [7]. We calculate the periodic pinning force in the stripe structure resulting from a highly inhomogeneous distribution of the vortices and antivortices. We show that the transport properties in FM-SC bilayer are highly anisotropic. In the absence of random pinning it displays a finite resistance for the current perpendicular to stripes and is superconducting for the current parallel to stripes. The average vortex velocity, electric field due to the vortex motion, Josephson frequency and higher harmonics of the vortex oscillatory motion are calculated.Comment: 4 pages, 2figures, Submitted to PR

Hysteresis of Finite Arrays of Magnetic nano Dots

Hysteresis curves for finite arrays of $N\times N$ ferromagnetic nano dots subject to the dipole-dipole interaction are investigated for $N=2... 13$. Spin arrangements up to N=6 are presented, which indicate the onset of bulk-like behavior associated with odd (N=5) and even (N=6) systems. The effect of field misalignment on the hysteresis loops is also studied for $N=3... 6$. The area $A_N$ of the hysteresis loop is studied as a function of $N$. We find that $A_N-A_\infty$ approximately scales as $N^{-{3/2}}$ for $N$ odd and as $N^{-2}$ for $N$ even.Comment: 6 pages, 8 figures, Submitted to PR

Ferromagnetic Annulus And Superconducting Vortices

The screening currents induced in a superconducting film by a magnetic annulus whose magnetization is perpendicular to the superconductor are calculated. We show that close to the superconductor transition temperature $T_c$ particular values of the magnetization and radii of the annulus make the creation of superconducting vortices energy favorable. We also show that the magnetic annulus offers an alternative tool for vortex pinning in the superconductor. Statistical mechanical properties of this system are discussed.Comment: 4 pages, 2 figures, submitted to PR

Design Implications for Technology-Mediated Audience Participation in Live Music

Mobile and sensor-based technologies have created new interaction design possibilities for technology-mediated au- dience participation in live music performance. However, there is little if any work in the literature that systematically identifies and characterises design issues emerging from this novel class of multi-dimensional interactive performance systems. As an early contribution towards addressing this gap in knowledge, we present the analysis of a detailed sur- vey of technology-mediated audience participation in live music, from the perspective of two key stakeholder groups - musicians and audiences. Results from the survey of over two hundred spectators and musicians are presented, along with descriptive analysis and discussion. These results are used to identify emerging design issues, such as expressive- ness, communication and appropriateness. Implications for interaction design are considered. While this study focuses on musicians and audiences, lessons are noted for diverse stakeholders, including composers, performers, interaction designers, media artists and engineers

Teachers' use of resources for mathematics teaching: The case of teaching trigonometry.

This paper draws on the documentational approach and knowledge quartet to analyse a trigonometry Year 13 lesson of a secondary mathematics teacher who uses a range of paper based and electronic resources. Data were collected during one lesson observation and a follow-up interview with the teacher. Analysis identifies the resources and schemes of use of these resources: aims of the teaching activity, rules of actions, operational invariants and inferences in relation to the trigonometry lesson but also in relation to Year 13 teaching, especially towards student preparation for the exams. It also explores this teacher’s work in the class by using the different dimensions of the knowledge quartet: foundation, transformation, connection and contingency. The findings explore teacher’s use of resources and the potencies of using the knowledge quartet in tandem with the documentational approach

[Preliminary report] Prejudice and hate on university campuses: repairing harms through student-led restorative dialogue

This preliminary report is part of a project funded by the HEFCE Student Safeguarding Catalyst Fund, which provided funding grants to establish projects to tackle hate crimes in universities. As part of this grant, the Universities of Sussex and Brighton are in the process of establishing a new restorative programme (called Restore Respect) that aims to provide support to students who have experienced prejudice and hate on campus. The programme is student-led, meaning that the programme itself is informed by the needs and experiences of students, and will involve students as central players in the resolution of their case. This report draws on data collated from focus groups and interviews. It highlights examples of students’ experiences of prejudice and hate across the two universities, and outlines the barriers, as perceived by participants, to reporting incidents to each university. It concludes by exploring what students want from a restorative programme that aims to use dialogical methods to address the invidious causes and impacts of identity-based prejudice at university, and based on these we outline the next steps for Restore Respect

Micro-evolution of documentational work in the teaching of the volume of revolution

In this paper, we draw on the documentational approach to analyse the evolution of one experienced secondary teacher’s work towards the teaching of the topic of “volume of revolution”. He used a range of paper and computer based resources in- cluding the software Autograph. Data were collected in observations of three lessons on this topic taught to two different groups of 16-18 years old students and a follow up interview with the teacher where he was asked to reflect on his choices in these lessons. The findings illustrate teacher’s documentational work with the used resources, and his schemes of use – aims, rules of actions, operational invariants and inferences – and identify the micro-evolution, namely the small changes and the rationale behind these changes, of these schemes across the lessons

Prejudice and hate on university campuses: repairing harms through student-led restorative dialogue. Final evaluation report

This report presents the final stage evaluation of the project Hate crime on university campuses: Repairing the harms of hate and prejudice through student-led dialogue. This project was undertaken at the University of Sussex and the University of Brighton and funded by the Office for Students (formerly HEFCE) Catalyst Student Safeguarding Fund, which provided grants to higher education (HE) providers to improve and enhance safeguarding against hate crime and online harassment. The central aim of this project was the establishment of a new initiative called Restore Respect which addresses hate crime, hate incidents, and hate speech through restorative practices