The homotopy orbit spectrum for profinite groups

Let G be a profinite group. We define an S[[G]]-module to be a G-spectrum X that satisfies certain conditions, and, given an S[[G]]-module X, we define the homotopy orbit spectrum X_{hG}. When G is countably based and X satisfies a certain finiteness condition, we construct a homotopy orbit spectral sequence whose E_2-term is the continuous homology of G with coefficients in the graded profinite $\hat{\mathbb{Z}}[[G]]$-module $\pi_\ast(X)$. Let G_n be the extended Morava stabilizer group and let E_n be the Lubin-Tate spectrum. As an application of our theory, we show that the function spectrum F(E_n,L_{K(n)}(S^0)) is an S[[G_n]]-module with an associated homotopy orbit spectral sequence.Comment: 13 page

User-created persona: Namibian rural Otjiherero speakers

Persona is a communicative artefact for usability that currently functions under the umbrella of User-Centred Design (UCD). Since we argue usability methods differ across cultures, this project presents a cross-cultural research probe on persona generated by indigenous Otjiherero speakers in Namibia. The objective is to find out how participants in this milieu take on, understand and portray persona artefacts, what goals of User Experience (UX) emerge from the inquiry, and whether the artefacts created simulate or differ from those in literature. Tentative methods scaffold from benefits attained by persona in the attempt to advance persona technical communication in cross-cultural design. This experience report presents initial findings on narrative content, rhetorical preferences, and the physical layout of persona artefacts as so-far constructed by Otjiherero speakers in rural Namibia. The report draws to a close reflecting on present challenges and advances, and indicating upcoming pathways

The decline of job security in the 1990s: displacement, anxiety, and their effect on wage growth

This article shows that job displacement rates for high-seniority workers and a consistently constructed measure of workers' fears of job loss both rose during the 1990s. It then explores the relationship between these measures of job displacement and worker anxiety and wage growth.Job security ; Downsizing of organizations ; Wages