In mathematical population genetics, it is well known that one can represent the genealogy of a population by a tree, which indicates how the ancestral lines of individuals in the population coalesce as they are traced back in time. As the population evolves over time, the tree that represents the genealogy of the population also changes, leading to a tree-valued stochastic process known as the...

www.sciencemag.org (this information is current as of May 12, 2008 ): The following resources related to this article are available online at http://www.sciencemag.org/cgi/content/full/318/5849/420 version of this article at: including high-resolution figures, can be found in the online Updated information and services, http://www.sciencemag.org/cgi/content/full/1149504/DC1 can be found at: Sup...

www.sciencemag.org (this information is current as of December 14, 2008 ): The following resources related to this article are available online at http://www.sciencemag.org/cgi/content/full/320/5881/1344 version of this article at: including high-resolution figures, can be found in the online Updated information and services, http://www.sciencemag.org/cgi/content/full/1158441/DC1 can be found a...

In this paper I examine three interrelated topics. First, I describe the conflicts and strains prevalent in matrilineal societies.1 I argue that these conflicts are the result of a central structural contradiction inherent in matriliny, namely, the contradiction between relations of production, which are individualistic in nature, and distribution processes, which involve social relationships t...

Copyright C 2014 by Korean Society of Spine Surgery This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. Asian Spine Journal • pISSN 1976-1902 e...