Current Research: Toward a Collaborative Development of a Truly Comprehensive Multi-State Material Culture Database

Throughout the past several years, I have been compiling, with the help of several Caddo researchers, a comprehensive multi-state database primarily composed of whole Caddo vessels from published excavations, private collections, and archaeological reports. At present, the database contains over 13,000 vessel entries from over 500 sites ranging from a single vessel recorded at a site to hundreds. Over the years, the database has evolved to contain, where applicable, attribute fields on type, variety, motif designs (largely using the Glossary of Motifs published in the Spiro shell engravings, collegiate assignment, form, temper, decorative method (incised, brushed, etc.), context (burial #, site #, intra site location), pigment, archaeological phase, collector, repository, associated photographs, and reference citations. The database is managed using Microsoft Access where data are imported into ESRI ArcGIS and spatial analyses can be conducted. This is a continual, and perhaps never-ending, work in progress where attribute fields are added, types are vetted, and new sites are included. In some cases, “Caddo-like” vessels from sites outside the Caddo Archaeological Area, or Caddo Homeland, are included in order to evaluate social interaction and exchange of ideas. Through this process, some initial insights into landscape scale social interactions and interregional relationships using this growing comprehensive database have been explored

A Report on a Long Term Research Program on the Bowman site in Arkansas

The Bowman (3LR46) and Bowman/Wallace (3LR50) sites represent a Caddo multi-mound center on the Red River in Little River County, Arkansas. Southeastern researchers may recognize the site name from an engraved shell cup and several additional “SECC” objects found in Mound 2. Hoffman provides a brief summary of digging at the sites and offers a proposed site organization of eight mounds (both burial and “temple mounds”) surrounding a possible plaza area and at least three offmound cemeteries. Material collected from Mounds 1 and 2 and two off-mound cemeteries suggest Haley phase (ca. A.D. 1200-1400) occupations. Additionally, data from Mound 1 have the potential to “reveal a solid sequence of [Caddo] burial and mortuary artifact styles” beginning with the earliest Caddo occupations in the Red River region

Metaphors in and for the Sociology of Religion : Towards a Theory after Nietzsche

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Directional Statistics for Polarization Observations of Individual Pulses from Radio Pulsars

Radio polarimetry is a three-dimensional statistical problem. The three-dimensional aspect of the problem arises from the Stokes parameters Q, U, and V, which completely describe the polarization of electromagnetic radiation and conceptually define the orientation of a polarization vector in the Poincar'e sphere. The statistical aspect of the problem arises from the random fluctuations in the source-intrinsic polarization and the instrumental noise. A simple model for the polarization of pulsar radio emission has been used to derive the three-dimensional statistics of radio polarimetry. The model is based upon the proposition that the observed polarization is due to the incoherent superposition of two, highly polarized, orthogonal modes. The directional statistics derived from the model follow the Bingham-Mardia and Fisher family of distributions. The model assumptions are supported by the qualitative agreement between the statistics derived from it and those measured with polarization observations of the individual pulses from pulsars. The orthogonal modes are thought to be the natural modes of radio wave propagation in the pulsar magnetosphere. The intensities of the modes become statistically independent when generalized Faraday rotation (GFR) in the magnetosphere causes the difference in their phases to be large. A stochastic version of GFR occurs when fluctuations in the phase difference are also large, and may be responsible for the more complicated polarization patterns observed in pulsar radio emission.Comment: 9 pages, 1 figure. Conference proceedings of Mathematics and Astronomy: A Joint Long Journey, Madrid, Spain, 23-27 November 2009. See http://link.aip.org/link/?APCPCS/1283/175/1. Copyright (2010) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physic