Weather instruments all at sea: meteorology and the Royal Navy in the nineteenth century

No abstract available

Using iPads as a learning tool in cross-curricular collaborative initial teacher education

Mobile technologies are becoming more and more prevalent in learning environments. This means that teacher education must keep pace with the use of mobile technologies. Baran (2014) argues that the ‘greatest added value of mobile learning vis-a-vis PC learning lies in the aspects that extend classroom interaction to other locations via communication networks’. (p. 18) This article outlines a pilot study developed to support collaborative working between the English and science pre-service teachers, in which mobile technologies were used to extend students interactions outside the classroom, using iPads in authentic, fieldwork situations

Quantum Fluctuations for de Sitter Branes in Bulk AdS(5)

The vacuum expectation value of the square of the field fluctuations of a scalar field on a background consisting of {\it two} de Sitter branes embedded in an anti-de Sitter bulk are considered. We apply a dimensional reduction to obtain an effective lower dimensional de Sitter space equation of motion with associated Kaluza-Klein masses and canonical commutation relations. The case of a scalar field obeying a restricted class of mass and curvature couplings, including massless, conformal coupling as a special case, is considered. We find that the local behaviour of the quantum fluctuations suffers from surface divergences as we approach the brane, however, if the field is {\it constrained} to its value on the brane from the beginning then surface divergences disappear. The ratio of $$ between the Kaluza-Klein spectrum and the lowest eigenvalue mode is found to vanish in the limit that one of the branes goes to infinity.Comment: 14 pages, no figures, to appear in Prog. Theor. Phy

Stereophonic acoustic echo cancellation employing selective-tap adaptive algorithms

Published versio

Examination of the inter-rater agreement among faculty marking a research proposal on an undergraduate health course

Copyright @ 2009 The Internet Journal of Allied Health Sciences and Practice.Purpose: This research looked at inter-rater agreement among faculty marking a research proposal on an undergraduate health course. The purpose of this study was to investigate if there were significant differences between marks as well as the comments given on research proposals that were double marked by two faculty members, where faculty were blind to the other marker’s marks and comments. Subjects: The subjects for this study consisted of 80 final year health students who submitted a research proposal and 13 full-time and 10 part-time faculty members who double marked the proposals. Methods: Faculty pairs marked the proposals independently and were required to meet with each other and discuss the marks given, reasons for the mark and the comments. Markers were asked to come to an agreement about the mark and the comments. Analyses: Agreement in marks was assessed using a Bland-Altman plot. Weighted Cohen's Kappa was used to estimate the agreement between the classifications given by markers. Comments were analyzed for differences using thematic analysis. Results: There was a wide discrepancy in the classification of students between markers. The weighted proportions found to agree on classification was 46%. Analysis of the comments indicated a wide discrepancy between markers. Conclusion: The outcomes of this study are similar to previous studies that have looked at inter-rater agreement when double marking was used to mark various types of written assignments. Further exploration of the inter-rater agreement in the marking process and other marking processes that results in a transparent system is needed

ABC of arterial and venous disease. Secondary prevention of transient ischaemic attack and stroke

No abstract available