Young children, gender and the heterosexual matrix

In this paper I consider the adult focus of current mainstream gender theory. I relate this to how the concept of the heterosexual matrix originates in a social contract which excludes children from civil society. I argue that this exclusion is problematic both for theoretical reasons and from the perspective of children themselves. I start by discussing the nature of the heterosexual matrix and its foundations. I consider the implications for participation which arise from being named as a child, how that affects children’s attempts to claim participation in civil society, and how this is related to children’s naming of themselves as gendered. I then briefly consider the possibility that, because of their exclusion, children might also be considered to be exempt from the heterosexual matrix. However, I argue, there is considerable evidence that children are actively sexual beings who also work hard to claim inclusion in local practices of heterosexuality. I end by suggesting that there are three key reasons for this: that the discourses of normative sexuality provide children with a language to express sexual feelings; that self-insertion in the heterosexual matrix is a way for children to claim rights to participation; and that taking up heterosexual formations is a means whereby children can experience the power of naming themselves as part of the social world

A Quality-Diversity Approach to Evolving a Repertoire of Diverse Behaviour-Trees in Robot Swarms

Designing controllers for a swarm of robots such that collaborative behaviour emerges at the swarm level is known to be challenging. Evolutionary approaches have proved promising, with attention turning more recently to evolving repertoires of diverse behaviours that can be used to compose heterogeneous swarms or mitigate against faults. Here we extend existing work by combining a Quality-Diversity algorithm (MAP-Elites) with a Genetic-Programming (GP) algorithm to evolve repertoires of behaviour-trees that define the robot controllers. We compare this approach with two variants of GP, one of which uses an implicit diversity method. Our results show that the QD approach results in larger and more diverse repertoires than the other methods with no loss in quality with respect to the best solutions found. Given that behaviour-trees have the added advantage of being human-readable compared to neural controllers that are typically evolved, the results provide a solid platform for future work in composing heterogeneous swarms

Masculine femininities/feminine masculinities: power, identities and gender

This paper is basically about terminology. In it I discuss the terms 'masculinity' and 'femininity' and how they relate to being male and being female. My theme arises from an increasing difficulty that I am finding in understanding how individual identities relate to dominant constructions of masculinity and femininity. Christine Skelton and Becky Francis argue that we should not be afraid to name certain behaviours as masculine even when they are performed by girls. After a discussion of the problems of defining both 'masculinity' and 'femininity', and a consideration of the power relations between these terms, I go on to consider the concept of 'female masculinity' (Halberstam). I argue that this formulation is problematic, due to its dependence on a main term whose definition is unclear. Finally, I argue that we need to distinguish 'masculinity' and 'femininity' from 'masculinities' and 'femininities'

Vector bundles on the projective line and finite domination of chain complexes

Finitely dominated chain complexes over a Laurent polynomial ring in one indeterminate are characterised by vanishing of their Novikov homology. We present an algebro-geometric approach to this result, based on extension of chain complexes to sheaves on the projective line. We also discuss the K-theoretical obstruction to extension.Comment: v1: 11 page

Improving the performance of a preference-based multi-objective algorithm to optimize food treatment processes

This work focuses on the optimization of some high-pressure and temperature food treatments. In some cases, when dealing with real-life multi-objective optimization problems, such as the one considered here, the computational cost of evaluating the considered objective functions is usually quite high. Therefore, only a reduced number of iterations is affordable for the optimization algorithm. However, using fewer iterations can lead to inaccurate solutions far from the real Pareto optimal front. In this article, different mechanisms are analysed and compared to improve the convergence of a preference-based multi-objective optimization algorithm called the Weighting Achievement Scalarizing Function Genetic Algorithm (WASF-GA). The combination of these techniques has been applied to optimize a particular food treatment process. In particular, one of the proposed methods, based on the introduction of an advanced population, achieves important improvements in the quality indicator measures considered

Tomboys and girly-girls: embodied femininities in primary schools

This paper is about how nine to eleven year old children, particularly girls, co-construct tomboy and girly-girl identities as oppositional positions. The paper sits within a theoretical framework in which I understand individual and collective masculinities and femininities as ways of ‘doing man/woman’ or ‘doing boy/girl’ that are constructed within local communities of masculinity and femininity practice. Empirical data come from a one-year study of tomboy identities within two London primary schools. The paper explores the contrasting identities of tomboy and girly-girl, how they are constructed by the children, and how this changes as they approach puberty. The findings suggest that the oppositional construction of these identities makes it harder for girls to take up more flexible femininities, though it is possible to switch between tomboy and girly-girl identities at different times and places

The problem of gender categorisation: addressing dilemmas past and present in gender and education research

Developments in the field of gender theory as applied to education since the 1970s are briefly reviewed in order to highlight key challenges and debates around gender categorisation and identification in gender and education. We argue that conundrums of categorisation have haunted, and continue to haunt, the field of gender theory, and empirical applications (such as the case of education) in particular. We explain how we have attempted to address some of the conundrums arising in our own theoretical work, and analyse remaining challenges that we feel the field of education needs to address in order to advance theoretically. Identifying two key tensions underpinning this empirical dilemma of gender categorisation – the tension between agency and determinism in gender identification, and that between gender deconstruction and gender analysis – we seek to weave a path through some of these complex debates, and to indicate ways in which they may be addressed in future work. We argue that in order to avoid essentialism and reification of gender distinction, we need to apply a ‘three-fold’ analysis that incorporates three different elements in our categorisation of gender: spectator perspective; respondent perspective and social context

Emerging Artificial Societies Through Learning

The NewTies project is implementing a simulation in which societies of agents are expected to de-velop autonomously as a result of individual, population and social learning. These societies are expected to be able to solve environmental challenges by acting collectively. The challenges are in-tended to be analogous to those faced by early, simple, small-scale human societies. This report on work in progress outlines the major features of the system as it is currently conceived within the project, including the design of the agents, the environment, the mechanism for the evolution of language and the peer-to-peer infrastructure on which the simulation runs

‘Whether you are gay or straight, I don’t like to see effeminate dancing’: effeminophobia in performance-level ballroom dance

This article discusses recent responses to performances of same-sex male ballroom dancing in order to consider the subtle difference which can exist between homophobia and effeminophobia. Given that the world of performance-level ballroom dancing is a gay-friendly environment, in which many participants are openly gay identified, this article will argue that a discourse of effeminophobia, rather than homophobia, underpins the world of performance-level ballroom dance. Performance-level ballroom dance is often read as camp not only because it represents exaggerated gender roles but because its official technique requires that the male dancer synthesise codes of masculinity and femininity in his dancing. What protects the gender-dissident male ballroom dancer from being read as effeminate is that he is paired with a female body performing excessive femininity. Without the foil of the hyper-feminine female partner, the same-sex couple draws attention to the fact that the male ballroom dancer is not dancing as a man but in accordance with ballroom’s queer construction of masculinity. Given that performance-level dance has struggled for so many years to be viewed as masculine sport, practitioners may, quite understandably, be anxious about any representation which suggests that ballroom dance may be an effeminate activity