This article explores the relationship between craft production, exchange, and power in the pre-Incaic Andes, with a focus on recent archaeological evidence from Chavı́n, Nasca, Tiwanaku, Wari, and Moche. I argue that craft production and exchange in concert with materialized ideologies played vital roles in the development of political power in the Andes. In later state societies, craft product...

BACKGROUND Aboriginal Australians experience a disproportionately high burden of alcohol-related harm compared to the general Australian population. Alcohol treatment approaches that simultaneously target individuals and families offer considerable potential to reduce these harms if they can be successfully tailored for routine delivery to Aboriginal Australians. The Community Reinforcement App...

We present a detailed mechanical and thermal analysis of stand-alone nanospacecraft that performs asteroid flybys in the main belt (2.75 AU) one Earth flyby at end mission to return gathered data. A fleet such (<10 kg) has been proposed as part Multi-Asteroid Touring concept, nearly propellantless where electric solar wind sail (E-sail) is used for primary propulsion. The makes thus far poorly ...

The aim of this paper is to investigate the performance a robotic spacecraft, whose primary propulsion system an electric solar wind sail (E-sail), in mission heliostationary point (HP)—that is, static equilibrium heliocentric and inertial reference frame. A spacecraft placed at given HP with zero velocity maintains that position provided on-board thrust able counterbalance Sun’s gravitational ...