Society talks back

NRG-1 talks back to neurons

n page 1133, Bao et al. demonstrate that a neuronal growth factor signals to neighboring cells while also communicating back to the nucleus of its own cell. This two-way signaling is necessary to maintain neuronal survival. In the forward direction , either a soluble or membrane-bound form of the Nrg-1 growth factor activates erbB receptor tyrosine kinases on a variety of adjacent cells. The Nr...

When the audience talks back: MOOCs and “super” discourse

Opportunities for co-produced digital media find users differentially involved within emergent and unfamiliar configurations of technologies, organizations, and complex information flows. Addressing the interaction patterns and rhetorical practices of the most frequent contributors to online discussion forums in comparison to the majority of infrequent contributors, this analysis considers the ...

Bringing Society Back into the Climate Debate

Debate over climate change focuses narrowly on the reduction of greenhouse gas emissions. A common justification for such emissions reductions is that they will lead to a reduction in the future impacts of climate on society. But research from social scientists and others who study environment–society interactions clearly indicates that the dominant factors shaping the impacts of climate on soc...

Plenary Talks

Invited Talks

In 2009, Peter Cameron introduced a common generalization of various classes of combinatorial designs such as balanced incomplete block designs, resolvable designs and orthogonal arrays. Generalized covering and packing designs can be defined in analogous way. These objects bring into this framework further classes of designs, including covering and packing arrays, Howell designs, monogamous cy...