Constructing Assessment: An Investigation into the Effectiveness of Online Diagnostic Tests to Assess Linguistic Competence

This research analyses the creation and use of online diagnostic tests to assess the linguistic competence of students at City University London. It examines the choices and approaches to designing this type of test and the effectiveness of the whole assessment process. Moreover, it highlights the importance of creating assessments testing the way learners mainly construct their knowledge regardless of the discipline or subject assessed. Finally the study recommends for the design of online assessments not to be led by the technology but to test the approaches learners use to map their own knowledge

Domain wall dynamics in a two-component Bose-Mott insulator

We model the dynamics of two species of bosonic atoms trapped in an optical lattice within the Mott regime by mapping the system onto a spin model. A field gradient breaks the cloud into two domains. We study how the domain wall evolves under adiabatic and diabatic changes of this gradient. We determine the timescales for adiabaticity, and study how temperature evolves for slow ramps. We show that after large, sudden changes of the field gradient, the system does not equilibrate on typical experimental timescales. We find interesting spin dynamics even when the initial temperature is large compared to the super-exchange energy. We discuss the implication of our results for experiments wishing to use such a two-component system for thermometry, or as part of a cooling scheme.Comment: 6 pages, 5 figures Minor typographical errors corrected. Figure labels changed. Added concluding statement

Multiple testing for SNP-SNP interactions

Most genetic diseases are complex, i.e. associated to combinations of SNPs rather than individual SNPs. In the last few years, this topic has often been addressed in terms of SNP-SNP interaction patterns given as expressions linked by logical operators. Methods for multiple testing in high-dimensional settings can be applied when many SNPs are considered simultaneously. However, another less well-known multiple testing problem arises within a fixed subset of SNPs when the logic expression is chosen optimally. In this article, we propose a general asymptotic approach for deriving the distribution of the maximally selected chi-square statistic in various situations. We show how this result can be used for testing logic expressions - in particular SNP-SNP interaction patterns - while controlling for multiple comparisons. Simulations show that our method provides multiple testing adjustment when the logic expression is chosen such as to maximize the statistic. Its benefit is demonstrated through an application to a real dataset from a large population-based study considering allergy and asthma in KORA. An implementation of our method is available from the Comprehensive R Archive Network (CRAN) as R package 'SNPmaxsel'

The Construct of Identity in Hellenistic Judaism

This volume assembles twenty-three essays by Erich S. Gruen, who has written extensively on the literature and history of early Judaism and the experience of the Jews in the Greco-Roman world. Twenty-two of the articles have previously been published, and one new one was composed for the volume