Rejoinder: Bayesian Checking of the Second Levels of Hierarchical Models

Rejoinder: Bayesian Checking of the Second Levels of Hierarchical Models [arXiv:0802.0743]Comment: Published in at http://dx.doi.org/10.1214/07-STS235REJ the Statistical Science (http://www.imstat.org/sts/) by the Institute of Mathematical Statistics (http://www.imstat.org

Idealizing Maya Culture: The Politics of Race, Indigeneity, and Immigration Among Maya Restaurant Owners in Southern California

Based on an ethnography of Maya restaurant owners in Los Angeles, the article examines how Maya migrants use Yucatecan cuisine to negotiate the politics of indigeneity. In Mexico, Maya peoples are denigrated as “Indian.” In the U.S., Maya migrants are racialized as “Mexican.” These racialization processes are intended to discipline indigenous subjects both within and outside of national boundaries. By drawing on popular indigenous cultural symbols and tastes that reinforce an idealized Maya culture, Maya restaurateurs construct an alternative politics of recognition that opens the door for new conversations about what it means to be indigenous and Latino

Ripples in Tapped or Blown Powder

We observe ripples forming on the surface of a granular powder in a container submitted from below to a series of brief and distinct shocks. After a few taps, the pattern turns out to be stable against any further shock of the same amplitude. We find experimentally that the characteristic wavelength of the pattern is proportional to the amplitude of the shocks. Starting from consideration involving Darcy's law for air flow through the porous granulate and avalanche properties, we build up a semi-quantitative model which fits satisfactorily the set of experimental observations as well as a couple of additional experiments.Comment: 7 pages, four postscript figures, submitted PRL 11/19/9