Asymptotic Properties of Difference Equations for Isotropic Loop Quantum Cosmology

In loop quantum cosmology, a difference equation for the wave function describes the evolution of a universe model. This is different from the differential equations that arise in Wheeler-DeWitt quantizations, and some aspects of general properties of solutions can appear differently. Properties of particular interest are boundedness and the presence of small-scale oscillations. Continued fraction techniques are used to show in different matter models the presence of special initial conditions leading to bounded solutions, and an explicit expression for these initial values is derived.Comment: 27 pages, 2 figure

AusTraits, a curated plant trait database for the Australian flora

We introduce the AusTraits database - a compilation of values of plant traits for taxa in the Australian flora (hereafter AusTraits). AusTraits synthesises data on 448 traits across 28,640 taxa from field campaigns, published literature, taxonomic monographs, and individual taxon descriptions. Traits vary in scope from physiological measures of performance (e.g. photosynthetic gas exchange, water-use efficiency) to morphological attributes (e.g. leaf area, seed mass, plant height) which link to aspects of ecological variation. AusTraits contains curated and harmonised individual- and species-level measurements coupled to, where available, contextual information on site properties and experimental conditions. This article provides information on version 3.0.2 of AusTraits which contains data for 997,808 trait-by-taxon combinations. We envision AusTraits as an ongoing collaborative initiative for easily archiving and sharing trait data, which also provides a template for other national or regional initiatives globally to fill persistent gaps in trait knowledge

Using academic analytic tools to investigate studying behaviours in technology-supported learning environments

Increasing flexibility in higher education is being provided to meet the needs of a diverse student body. Technologies such as lecture-capture systems have been employed by many universities to provide on-demand access to recorded lectures. This paper describes research into how students engage with lecture-capture technologies such as Lectopia as they study in blended learning environments. It reports on the development of an academic analytic tool to examine Lectopia usage logs to identify usage patterns among students in three units across two universities. A theoretical model of usage patterns has been developed to tentatively explain studying behaviour. Preliminary results suggest that patterns of use of Lectopia vary greatly across the student cohorts studied

Guiding the design of lessons by using the MAPLET framework: matching aims, processes, learner expertise and technologies

This paper introduces the MAPLET framework that was developed to map and link teaching aims, learning processes, learner expertise and technologies. An experimental study with 65 participants is reported to test the effectiveness of the framework as a guide to the design of lessons embedded within larger units of study. The findings indicate the potential of the MAPLET framework and reinforces the need to take a fresh approach to the design and development of curriculum that makes more effective use of the diminishing time available. It provides a conceptual model and working procedure that places the learner and the process of learning at the forefront of decisions