Open University Learning Analytics dataset

Learning Analytics focuses on the collection and analysis of learners’ data to improve their learning experience by providing informed guidance and to optimise learning materials. To support the research in this area we have developed a dataset, containing data from courses presented at the Open University (OU). What makes the dataset unique is the fact that it contains demographic data together with aggregated clickstream data of students’ interactions in the Virtual Learning Environment (VLE). This enables the analysis of student behaviour, represented by their actions. The dataset contains the information about 22 courses, 32,593 students, their assessment results, and logs of their interactions with the VLE represented by daily summaries of student clicks (10,655,280 entries). The dataset is freely available at https://analyse.kmi.open.ac.uk/open_dataset under a CC-BY 4.0 license

Real constitutional reform after Fitzgerald: Still waiting for Godot

The Fitzgerald Inquiry, although initially focused upon matters such as maladministration and corruption, placed significant emphasis on the reform of Queensland’s political and public administration system as a whole. It is therefore in relation to its practical impact within the context of that system that the Fitzgerald Report ought to be assesses. However, despite widespread support for the report’s recommendations, recent events in Queensland concerning such matters as corruption, maladministration, lobbying, cronyism and secrecy suggest that the report has failed to deliver on its most basic objectives. This article argues that although the Fitzgerald Report drew attention to and sought to address systemic problems of various kinds, it has largely failed in its intentions because the changes that it proposed could not be sustained in the context of Queensland’s existing constitutional framework and particular system of Westminster democracy, especially its high level of executive domination operating in the context of a unicameral parliament. The fact that so many of the Fitzgerald reforms were left to be sorted out by post-commission agencies working in such an environment means real reform has failed to flourish. Consequently, the Fitzgerald Report has met the same fate as so many other public inquiries into corruption in Australia, resulting in only minimal change to the way government is actually conducted. While as a result of the Fitzgerald Inquiry there has been widespread institutional restructuring in Queensland, the way of doing business in that state has hardly changed at all

Dynamic film thickness between bubbles and wall in a narrow channel

The present paper describes a novel technique to characterize the behavior of the liquid film between gas bubbles and the wall in a narrow channel. The method is based on the electrical conductance. Two liquid film sensors are installed on both opposite walls in a narrow rectangular channel. The liquid film thickness underneath the gas bubbles is recorded by the first sensor, while the void fraction information is obtained by measuring the conductance between the pair of opposite sensors. Both measurements are taken on a large two-dimensional domain and with a high speed. This makes it possible to obtain the two-dimensional distribution of the dynamic liquid film between the bubbles and the wall. In this study, this method was applied to an air-water flow ranging from bubbly to churn regimes in the narrow channel with a gap width of 1.5m

Concept of a novel fast neutron imaging detector based on THGEM for fan-beam tomography applications

The conceptual design and operational principle of a novel high-efficiency, fast neutron imaging detector based on THGEM, intended for future fan-beam transmission tomography applications, is described. We report on a feasibility study based on theoretical modeling and computer simulations of a possible detector configuration prototype. In particular we discuss results regarding the optimization of detector geometry, estimation of its general performance, and expected imaging quality: it has been estimated that detection efficiency of around 5-8% can be achieved for 2.5MeV neutrons; spatial resolution is around one millimeter with no substantial degradation due to scattering effects. The foreseen applications of the imaging system are neutron tomography in non-destructive testing for the nuclear energy industry, including examination of spent nuclear fuel bundles, detection of explosives or drugs, as well as investigation of thermal hydraulics phenomena (e.g., two-phase flow, heat transfer, phase change, coolant dynamics, and liquid metal flow).Comment: 11 Pages; 6 Figures; Proceeding of the International Workshop on Fast Neutron Detectors and Application FNDA2011, Ein Gedi, Israel, November 2011. Published on the Journal of Instrumentation; 2012 JINST 7 C0205

Enhancing reuse of data and biological material in medical research : from FAIR to FAIR-Health

The known challenge of underutilization of data and biological material from biorepositories as potential resources formedical research has been the focus of discussion for over a decade. Recently developed guidelines for improved data availability and reusability—entitled FAIR Principles (Findability, Accessibility, Interoperability, and Reusability)—are likely to address only parts of the problem. In this article,we argue that biologicalmaterial and data should be viewed as a unified resource. This approach would facilitate access to complete provenance information, which is a prerequisite for reproducibility and meaningful integration of the data. A unified view also allows for optimization of long-term storage strategies, as demonstrated in the case of biobanks.Wepropose an extension of the FAIR Principles to include the following additional components: (1) quality aspects related to research reproducibility and meaningful reuse of the data, (2) incentives to stimulate effective enrichment of data sets and biological material collections and its reuse on all levels, and (3) privacy-respecting approaches for working with the human material and data. These FAIR-Health principles should then be applied to both the biological material and data. We also propose the development of common guidelines for cloud architectures, due to the unprecedented growth of volume and breadth of medical data generation, as well as the associated need to process the data efficiently.peer-reviewe

The 2004 federal election: impacts for regions

The Howard Government’s re-election for a fourth term has important implications for regional Australia. Importantly, fourth terms are as rare in Australia as they are in other western democracies. At a national level only the Menzies Coalition Government in 1958 and the Hawke Labor Government in 1990 achieved such success. Moreover, it is not just winning a fourth term that makes the 2004 election potentially important, but also that the Howard Government has for first time since the Fraser Coalition Government (1975-83) secured full control of the Senate. Such political hegemony over both Houses of Parliament is also rare internationally. Overall, this means there will considerable policy continuity. By the time the next election is due in 2007, Australia will have experienced nearly twelve years of Coalition government—possibly even under one leader if John Howard stays as Prime Minister. Control of the Senate also means the Howard Government will not have to compromise with Independents and minority parties. Some of these senators like Brian Harradine, the Tasmanian Independent, or the Green Party, had clear regional, as well as national, policy goals. For instance, national forest agreements had both regional origins and national policy dimensions. Further, with such political ascendancy, the fourth Howard Government has the potential to be what some regard as the ‘real’ Howard Government, confident, unrestrained and ideologically charged. Just how far this will take Howard Government down previous blocked policy avenues and affect regions remains to be seen