Managing innovation in English language education, state of the art review.

Innovation in English language education (ELE) has become a major ‘growth area’ in recent years. At the same time, an ELE innovation management literature has also developed, based on insights from innovation theory and their application, both from outside and within ELE, and concerned with attempting to critically evaluate and inform ELE innovation practice. Thus, using a well-established three-part framework for distinguishing the main stages involved in innovation project management, this review describes and discusses the main features of this body of work. After defining terms and clarifying its scope, it considers what is said about the innovation ‘initiation’ phase, in terms of innovation causes, characteristics and contexts. It then examines conceptualisations of the innovation ‘implementation’ stage, by distinguishing main overall approaches, frameworks for identifying and configuring roles, underlying psychological processes, and the use of evaluation techniques. Lastly, the literature relating to innovation ‘institutionalisation’ stage is analysed. The article concludes by identifying overall trends and areas for further development. In particular, it is argued that ELE innovation work needs to become more informed by many of the concepts and procedures which the ELE innovation management literature contains

Lime and Water

Stor

Unique Determination of Sound Speeds for Coupled Systems of Semi-linear Wave Equations

We consider coupled systems of semi-linear wave equations with different sound speeds on a finite time interval $[0,T]$ and a bounded Lipschitz domain $\Omega$ in $\mathbb{R}^3$, with boundary $\partial\Omega$. We show the coupled systems are well posed for variable coefficient sounds speeds and short times. Under the assumption of small initial data, we prove the source to solutions map on $[0,T]\times\partial\Omega$ associated with the nonlinear problem is sufficient to determine the source-to-solution map for the linear problem. We can then reconstruct the sound speeds in $\Omega$ for the coupled nonlinear wave equations under certain geometric assumptions. In the case of the full source to solution map in $\Omega\times[0,T]$ this reconstruction could also be accomplished under fewer geometric assumptions.Comment: minor update

Low Regularity Ray Tracing for Wave Equations with Gaussian beams

We prove observability estimates for oscillatory Cauchy data modulo a small kernel for $n$-dimensional wave equations with space and time dependent $C^2$ and $C^{1,1}$ coefficients using Gaussian beams. We assume the domains and observability regions are in $\mathbb{R}^n$, and the GCC applies. This work generalizes previous observability estimates to higher dimensions and time dependent coefficients. The construction for the Gaussian beamlets solving $C^{1,1}$ wave equations represents an improvement and simplification over Waters (2011).Comment: this version shortens and changes the previous construction and contains an extension to space time dependent coefficient

Artemis: Depictions of Form and Femininity in Sculpture

Grecian sculpture has been the subject of investigation for centuries. More recently, however, emphasis in the field of Art History on the politics of gender and sexuality portrayal have opened new avenues for investigation of those old statues. In depicting gender, Ancient Greek statuary can veer towards the non-binary, with the most striking examples being works depicting Hermaphroditos and ‘his’ bodily form. Yet even within the binary, there are complications. Depictions of the goddess Artemis are chief among these complications of the binary, with even more contradiction, subtext, and varied interpretation than representations of Amazons. The numerous ways Artemis has been portrayed over the years highlight her multifarious aspects, but often paint a contradictory portrait of her femininity. Is she the wild mother? The asexual huntress? Or is she a tempting virgin, whose purity is at risk? Depictions of her in sculptural form, deliberately composed, offer answers. Though as separate depictions they sometimes contradict one another, as a whole, they reveal just how Artemis the female was thought of