Illumination: Inferred or observed?

Unangan past and present: the contrasts between observed and inferred histories.

Academic research focusing on the population and culture history of the Aleut (Unangan) people began in the late 19th century and continues to the present. The papers in this special issue of Human Biology summarize the latest results from archaeological, linguistic, genetic, and morphometric research approaches that bear on our current understanding of Unangan history and prehistory. Although ...

Poleward Shift of Subtropical Jets Inferred from Satellite-Observed Lower-Stratospheric Temperatures

One pronounced feature in observed latitudinal dependence of lower-stratospheric temperature trends is the enhanced cooling near 308 latitude in both hemispheres. The observed phenomenon has not, to date, been explained in the literature. This study shows that the enhanced cooling is a direct response of the lower-stratospheric temperature to the poleward shift of subtropical jets. Furthermore,...

Cross - Bedded Facies and Inferred Paleocurrents Observed by the Curiosity Rover

ROVER ALONG THE TRAVERSE TO MT. SHARP, GALE CRATER, MARS. L.A. Edgar, S. Gupta, D. M. Rubin, J. Schieber, K.W. Lewis, J.F. Bell III, C. Hardgrove, L.C. Kah, M. Rice, K.M. Stack, D.Y. Sumner, R.M.E. Williams. Arizona State University, Tempe, AZ, 85287, [email protected], Imperial College London, London, UK, UC, Santa Cruz, CA, Indiana University, Bloomington, IN, Princeton University, Princeton, N...

Structural changes in bacteriorhodopsin in response to alternate illumination observed by high-speed atomic force microscopy.

Learning Gaussian Graphical Models with Observed or Latent FVSs

Gaussian Graphical Models (GGMs) or Gauss Markov random fields are widelyused in many applications, and the trade-off between the modeling capacity andthe efficiency of learning and inference has been an important research prob-lem. In this paper, we study the family of GGMs with small feedback vertexsets (FVSs), where an FVS is a set of nodes whose removal breaks all the cycles...