A chimera is an animal that has two or more populations of genetically distinct cells that originated in different embryos, fetuses, or individuals of the same or different species. During recent decades, embryos, the inner cell mass (ICM), teratocarcinoma stem cells, embryonal carcinoma stem cells, embryonic stem (ES) cells (ESCs), primordial germ cells, spermatogonial stem cells, extraembryon...

Lekkerkerker and Boland characterized the minimal forbidden induced subgraphs for the class of interval graphs. We give a lineartime algorithm to find one in any graph that is not an interval graph. Tucker characterized the minimal forbidden submatrices of matrices that do not have the consecutive-ones property. We give a linear-time algorithm to find one in any matrix that does not have the co...

Artist Howard Boland arrived for his 2012 exhibit at the headquarters of London’s newspaper The Guardian toting Erlenmeyer flasks, plastic tubing, and glowing bacteria. Boland was eager to set up his exhibit “Stress-o-stat.” He hit a snag. Although Boland had followed safety protocols, security staff took one look at the biohazard symbols on his project materials and ejected him from the premis...

The present study provided a partial replication of an influential study by Chua, Boland, and Nisbett (2005). By tracking the eye movements of North American and Chinese students when viewing pictures of naturalistic scenes, both studies demonstrated that the North American students fixated more on the focal object in the scene, whereas the Chinese students fixated more on the background. Howev...