Doing pedagogical research in engineering

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STELLAR (Semantic Technologies Enhancing the Lifecycle of Learning Resources): Jisc Final Report

[Project Summary] As one of the earliest distance learning providers The Open University (OU) has a rich heritage of archived learning materials. An ever increasing amount of that is in digital form and is being deposited with the University Archive. This growth has been driven by digitisation activity from projects such as AVA (Access to Video Assets) and the Fedora-based Open University Digital Library ‘a place to discover digital and digitised archival content from the OU Library, from videos and images to digitised documents’. Other digital content is being captured from web archiving activities, such as work to preserve Moodle Virtual Learning Environment course websites. An evidence based understanding is required to inform digital preservation policies, curation strategy and investment in digital library development. Following the Pre-enhancement, Enhancement and Post-enhancement methodology set out by Jisc, STELLAR adopted the model of a balanced scorecard to ascertain the value ascribed to the non-current learning materials. Four aspects were considered: Personal and professional perspectives of value; Value to the Higher Educational and academic communities; Value to internal processes and cultures; Financial perspectives of value. The outcomes of the survey indicated that stakeholders place a high value on the materials, and that they perceived them to have value in all areas evaluated. Three OU courses were chosen from the digital library for the transformation stage. These materials were enhanced and transformed into RDF, a process that required more extensive metadata expertise and effort than was expected. Following enhancement the RDF was accessed through a tool called DiscOU, created by a member of the project team from the OU’s Knowledge Media Institute. DiscOU uses both linked data and a semantic meaning engine to analyse the meaning of the text in a search query. This is matched against the meaning of the content derived from an index of the full-text of the digital library content. In the final stage stakeholders were asked through a survey and series of workshops to use the DiscOU proof-of-concept tool to assess their perception of the value of this transformation. This has revealed that overall, academics and other stakeholders in the university do believe that the value of the selected materials was positively impacted by the application of semantic technologies

Household Debt and Financial Assets: Evidence from Great Britain, Germany and the United States

We explore the determinants of debt and financial asset accumulation at the household level using survey data for Great Britain, Germany and the United States (US). Given that debt and assets are both components of a household’s financial portfolio, we explore the degree of inter-dependence between households’ assets and liabilities by jointly modelling these two aspects of the portfolio. Indeed, our empirical findings for both countries support a high degree of inter-dependence between debt and asset holding. Furthermore, the nature of this inter-dependence varies across income ranges and age groups with the weakest correlation between financial assets and debt being found for the lowest income groups in Great Britain, suggesting that such groups may be particularly vulnerable to adverse financial shocks. Evidence supporting inter-dependence between assets and debt no longer remains, however, once we focus on debtors which suggests that households in debt may potentially face difficulties following adverse changes in their financial situation.Debt; Financial Assets; Household Financial Portfolio; Random Effects; Tobit Estimator

Religion and Education: Evidence from the National Child Development Study

In this paper, we explore the determinants of one aspect of religious behaviour – church attendance – at the individual level using British data derived from the National Child Development Study (NCDS). To be specific, we focus on the relationship between education and church attendance, which has attracted some attention in the existing literature. In contrast to the previous literature in this area, our data allows us to explore the dynamic dimension to religious activity since the NCDS provides information on church attendance at three stages of an individual’s life cycle. The findings from our cross-section and panel data analysis, which treats education as an endogenous variable, support a positive association between education and church attendance. In addition, our findings suggest that current participation in religious activities is positively associated with past religious activities. Furthermore, our findings suggest that levels of religious activity tend to vary less over time suggesting that factors such as habit formation may be important.Church Attendance; Education; Human Capital; Religion.

The Saving Behaviour of Children: Analysis of British Panel Data

We explore the influences on the saving behaviour of children aged 11 to 15 using panel data drawn from the British Household Panel Survey Youth Questionnaire. Our empirical findings suggest that parental allowances/pocket money exert a moderating influence on the probability that a child will save, whilst hours of paid work undertaken by the child are positively associated with the probability that a child will save. The saving behaviour of parents, however, does not appear to influence the saving behaviour of their offspring. In contrast, financial optimism on the part of parents does appear to lower the probability that their children will save. In addition, our empirical analysis reveals some interesting differences relating to the determinants of the saving behaviour of boys and girls as well as evidence of state dependence in the saving behaviour of children.household finances, intergenerational analysis, panel data, saving

Wage Growth, Human Capital and Risk Preference: Evidence From The British Household Panel Survey

The aim of this paper is to explore how interpersonal variation in risk preference affects human capital investment and, hence, wage growth. To date, there has been a distinct lack of empirical research in this area despite the fact that the risk preference of individuals plays a key role in the theoretical models of human capital accumulation. We investigate the link between risk preference, human capital investment and wage growth using data from four waves of the British Household Panel Survey using a measure of the extent of risky financial assets held by individuals as a proxy for risk preference. We exploit panel data enabling us to determine the change in real wages experienced by individuals across three different time horizons, 1995-96, 1995-98 and 1995-2000. Our empirical specification is derived from a theoretical framework, which explicitly allows the risk preferences of individuals to influence human capital accumulation and, consequently, wage growth. Our findings suggest that risk-loving behaviour impacts positively on the returns to human capital investment thereby enhancing wage growth.Human capital; Risk Aversion; Wage Growth

Reservation Wages, Expected Wages and the Duration of Unemployment: Evidence from British Panel Data

In this paper we analyse the role of wage expectations in an empirical model of incomplete spells of unemployment and reservation wages. To be specific, we model the duration of unemployment, reservation wages and expected wages simultaneously for a sample of individuals who are not in work, where wage expectations are identified via an exogenous policy shock based upon the introduction of Working Family Tax Credits (WFTC) in the UK. The results from the empirical analysis, which is based on the British Household Panel Survey, suggest that WFTC eligibility served to increase expected wages and that expected wages are positively associated with reservation wages. In addition, incorporating wage expectations into the econometric framework was found to influence the magnitude of the key elasticities: namely the elasticity of unemployment duration with respect to the reservation wage and the elasticity of the reservation wage with respect to unemployment duration.unemployment duration, reservation wages, expected wages

Connecting to Students: Launching Instant Messaging Reference at Binghamton University

Binghamton University Libraries implemented an IM reference service using the Trillian client to monitor multiple IM accounts at two distinct reference service points. This paper addresses the process and practical considerations of implementing the service including selection of the appropriate software, creation of IM accounts for each service, development of a staffing schedule, and training of reference staff. Also included is an outline of future plans for improving IM services for students and academic library users

A Call to Action: An Integrated Approach to Youth Permanency and Preparation for Adulthood

Addresses the unique needs of adolescents in foster care, and highlights efforts to ensure that youth in the foster system benefit from the most strategic preparation and supports for entering adulthood

The algebra of cell-zeta values

In this paper, we introduce cell-forms on $\mathcal{M}_{0,n}$, which are top-dimensional differential forms diverging along the boundary of exactly one cell (connected component) of the real moduli space $\mathcal{M}_{0,n}(\mathbb{R})$. We show that the cell-forms generate the top-dimensional cohomology group of $\mathcal{M}_{0,n}$, so that there is a natural duality between cells and cell-forms. In the heart of the paper, we determine an explicit basis for the subspace of differential forms which converge along a given cell $X$. The elements of this basis are called insertion forms, their integrals over $X$ are real numbers, called cell-zeta values, which generate a $\mathbb{Q}$-algebra called the cell-zeta algebra. By a result of F. Brown, the cell-zeta algebra is equal to the algebra of multizeta values. The cell-zeta values satisfy a family of simple quadratic relations coming from the geometry of moduli spaces, which leads to a natural definition of a formal version of the cell-zeta algebra, conjecturally isomorphic to the formal multizeta algebra defined by the much-studied double shuffle relations