Ion association and molar conductivity in polyether electrolytes

The ion association behaviour observed in our earlier studies of a polyether electrolyte system at elevated temperatures, was reminiscent of the molar conductivity behaviour typical of low dielectric constant systems. Further investigation of this relationship has led to some suggestions about the types of ionic species present in the polymer electrolyte systems. FT-IR spectroscopy has been used in this work to contrast ion association in an amorphous polyether electrolyte with two liquid electrolytes, N,N-dimethyl-formamide and tetraethylenegylcol dimethylether, containing lithium trifluoromethan sulfonate.

Book review - Changing the faces of mathematics : perspectives on gender

Reviews the book 'Changing the Faces of Mathematics: Perspectives on Gender,' by Judith E. Jacobs, Joanne Rossi Becker and Gloria F. Gilmer.

Recognising faces in unseen modes : a tensor based approach

This paper addresses the limitation of current multilinear techniques (multilinear PCA, multilinear ICA) when applied to face recognition for handling faces in unseen illumination and viewpoints. We propose a new recognition method, exploiting the interaction of all the subspaces resulting from multilinear decomposition (for both multilinear PCA and ICA), to produce a new basis called multilinear-eigenmodes. This basis offers the flexibility to handle face images at unseen illumination or viewpoints. Experiments on benchmarked datasets yield superior performance in terms of both accuracy and computational cost.

Humanising contact zones : the stories and faces of cross-cultural dialogue

We live in a radically ‘cosmopolitanised’ world, facing a plethora of mostly unwanted or unforeseen cross-cultural encounters as side effects of global trade and global threats (Beck, 2006). The potentially positive role of both cultural tourism and museums in this context has been widely recognised and theorised. But what does cross-cultural dialogue mean for the person experiencing it, and how is it negotiated within time and space? Drawing on a long-term narrative study of global visitors to the Museum of New Zealand Te Papa Tongarewa (Te Papa), I explore cross-cultural meanings empirically through a hermeneutic interpretation embedded in Beck’s ‘cosmopolitan critical theory’. The evidence presented in this research suggests that the individual is the point of departure from which cross-cultural dialogue is humanised by giving it ‘faces’ and stories. I argue that the impact of any travel experience is best understood via the meanings tourists make and negotiate in the long-term.

Two faces (studies)

An artwork exploring the consequence of perspective and space on perceptions of the figure

The relationship between sexual dimorphism in human faces and fluctuating asymmetry

Previous studies have found both support and lack of support for a positive relationship between masculinity and symmetry, two putative signs of mate quality, in male faces. We re-examined this relationship using an explicit measure of facial fluctuating asymmetry, as well as other measures of asymmetry, and measures of facial masculinity/femininity. We also used ratings of these traits for faces. Further, we examined the relationship between facial sexual dimorphism and body asymmetry. We found no significant correlations between facial masculinity and any of our measures of asymmetry or ratings of symmetry in males. Facial femininity was not consistently associated with facial symmetry in females, but was associated with body symmetry. Therefore, for females, but not males, facial femininity and body symmetry may reflect similar aspects of mate quality. We also examined the relationships between trait ratings and measurements. Our results provide validation of our ability to measure aspects of asymmetry that are perceived to be symmetrical, and aspects of sexual dimorphism that are perceived as feminine in females and masculine in males.