Lower Pecos and Coahuila peyote: new radiocarbon dates

Peyote, a psychoactive cactus native to the Chihuahuan Desert, has been preserved from excavations at only two archaeological sites: Shumla Caves in the Lower Pecos region of southwest Texas and shelter CM-79 near Cuatro Ciénegas in Coahuila, Mexico. We determined three indistinguishable radiocarbon ages of 5160 ± 45, 5200 ± 35, and 5210 ± 35 ¹⁴C years BP, yielding a mean age of 5195 ± 20 ¹⁴C years BP for the three specimens from Shumla Caves. For one of the Cuatro Ciénegas specimens we obtained the first direct radiocarbon date of 835 ± 35 ¹⁴C years BP. This study demonstrates the use of peyote by inhabitants of the Lower Pecos region of the Chihuahuan Desert about 6000 calendar years ago, and confirms its use by inhabitants of the Cuatro Ciénegas region of the Chihuahuan Desert in Late Prehistoric times. The Shumla Caves' specimens are composed of an aggregate of ground peyote mixed with other plant material, i.e., they appear to be manufactured peyote effigies, and are definitely not intact peyote buttons.     

Dynamics of Disintegration: Diaspora,Secession and the Paradox of Nation-States

Abstract. The underlying logic of an international system based on nation-states should lead to the gradual elimination of trans-national loyalties, intra-national divisions and stateless communities. Paradoxically, current realities indicate that the reverse is true, with these phenomena becoming more and more prevalent. The article proposes a comprehensive analytical framework for the study of the complex relationships between diaspora formation, secessionist (and irredentist) drives and the existing nation-state system. It traces the genesis, and the subsequent effects, of differing variants of diaspora formations and secession (irredentist) movements to the interplay between two distinct independent variables: (1) the formation and disintegration of different nation-types (ethno-focal or ideo-focal); and (2) the modus operandi of different regime-types (libertarian or authoritarian). The processes produced by these interactions generate a perennial source for the rejuvenation of old identities and the awakening of new ones, which in turn constitute an incessant challenge to the prevailing state system. Thus rather than becoming an anomalous anachronism of the past, diasporas and separatist sentiments appear to be not only an endemic feature of the international system, but a pivotal element in comprehending the direction of present and future trends in it.     

Art as Appearance: Two Comments on Arthur C. Danto's After the End of Art

In his latest book about art Arthur Danto claims that aesthetic appearance—visuality in the visual arts—has become more and more irrelevant for most of contemporary art. This essay first immanently critiques the distinction between the aesthetic and artistic properties underlying this claim. Danto's claim about the irrelevance of the aesthetic is not compatible with the spirit of his own writings: what Danto denies in After the End of Art has been a cornerstone of his theoretical work since The Transfiguration of the Commonplace , namely, that the aesthetic is indeed both an elementary and a defining property of art. Examples ranging from Duchamp's Fountain to a recent installation by the Art & Language group are discussed to support this critique. Second, the essay defends Danto's contention that developing a "definition of art" is a sensible enterprise. But it turns out that Danto's (self-ascribed) "essentialism" concerning art has no essentialist implications in any specific sense.     

Further Understanding Spatial Inertia: A Reply to Plastria and Rosing

Our position with respect to Plastria and Rosing's comments isqualified. Some of their comments are irrelevant because they attack a general statement that is not included in Tellier and Vertefeuille's paper (1995). Portions of their comments on the mathematical framework are relevant and have some implication for the validity of the mathematical relations proposed. A new analysis of the local behavior of the Weberian optimum is presented and its probabilistic interpretation is emphasized. On the basis of this analysis and ofempirical observation, we maintain that Tellier and Vertefeuille's paper was generically correct with regard to spatial inertia.