165 research outputs found

    Radiocarbon and Oxidizable Carbon Ratio Dates From the Camp Joy Mound (41UR144) in Northeast Texas

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    The Camp Joy Mound (41UR144) is a looted Caddo mound on property owned by the U.S. Anny Corps of Engineers, Fort Worth District, at Lake o\u27 the Pines. Although only a small number of artifacts have been found in the mound deposits - principally a few brushed sherds - it appears to be a Late Caddoan period construction with two mound platforms, separated by extensive charcoal lenses from one ( or more) burned Caddoan structure e~posed in a larger looters trench. To ascertain the age of the burned Caddoan structure that stood on the main mound platform, we obtained two charcoal samples and two oxidizable carbon ratio (OCR) samples of sediments from the charcoal lens in our freshly cleaned profile of the trench cutting across the mound

    The p(γ,K+)Λp(\gamma,K^+)\Lambda reaction: consistent high-spin interactions and Bayesian inference of its resonance content

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    A Bayesian analysis of the world's p(γ,K+)Λp(\gamma,K^+)\Lambda data is presented. We adopt a Regge-plus-resonance framework featuring consistent interactions for nucleon resonances up to spin J=5/2J = 5/2. The power of the momentum dependence of the consistent interaction structure rises with the spin of the resonance. This leads to unphysical structures in the energy dependence of the computed cross sections when the short-distance physics is cut off with standard hadronic form factors. A plausible, spin-dependent modification of the hadronic form factor is proposed which suppresses the unphysical artifacts. Next, we evaluate all possible combinations of 11 candidate resonances. The best model is selected from the 2048 model variants by calculating the Bayesian evidence values against the world's p(γ,K+)Λp(\gamma,K^+)\Lambda data. From the proposed selection of 11 resonances, we find that the following nucleon resonances have the highest probability of contributing to the reaction: S11(1535)S_{11}(1535), S11(1650)S_{11}(1650), F15(1680)F_{15}(1680), P13(1720)P_{13}(1720), D13(1900)D_{13}(1900), P13(1900)P_{13}(1900), P11(1900)P_{11}(1900), and F15(2000)F_{15}(2000).Comment: 5 pages, 4 figure

    Data Recovery Efforts at the Millville Mill Site (41RK223), Rusk County, Texas

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    In September 1993, data recovery efforts were undertaken by Espey, Huston & Associates, Inc. (EH&A) of Austin, Texas, to mitigate the effects of lignite mining on site 41RK223 in Texas Utilities Mining Company\u27s Oak Hill/2280 Acre Mine permit area of north-central Rusk County, Texas. The data recovery efforts were planned and conducted in coordination with the Department of Antiquities Protection at the Texas Historical Commission (THC) and Mr. Matthew Tanner of TU Services. The site was originally recorded by EH&A during a 1989 survey of the Oak Hill/2280 Acre Mine permit area based on information received from local informants, Orville Todd and Herman Ballow. Both men recalled swimming as children in the vicinity of an old framework of heavy timbers submerged within Boggy Branch, a tributary to Mill Creek. Local history accounts suggested that the timbers were likely the remains of one of several old water-powered mills historically associated with the Mill Creek floodplain

    Impact of intrasexual selection on sexual dimorphism and testes size in the Mexican howler monkeys Alouatta palliata and A. pigra

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    One of the goals of physical anthropology and primatology is to understand how primate social systems influence the evolution of sexually selected traits. Howler monkeys provide a good model for studying sexual selection due to differences in social systems between related species. Here, we examine data from the sister howler monkey species Alouatta palliata and A. pigra inhabiting southeastern Mexico and northern Guatemala. We use a resampling approach to analyze differences in sexual dimorphism of body and canine size. In addition, we compare testes size as a way of gauging the intensity of sperm competition in both species. Morphometric data were collected from wild‐caught individuals, including body mass and length, and dental data were obtained from casts from wild individuals and from museum specimens. Although A. pigra individuals are larger than their A. palliata counterparts, we find that both species exhibit similar levels of sexual dimorphism for all of the variables considered. Testicular volume results indicate that A. palliata male testes are on average twice as large as those of A. pigra males, suggesting more intense sperm competition in the former species. Our study shows that A. pigra is not highly sexually dimorphic as was once thought, and testes size differences suggest the need for a clearer understanding of howler monkey social systems. Am J Phys Anthropol, 2011. © 2011 Wiley‐Liss, Inc.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/86981/1/21559_ftp.pd

    Local Taxation of Realty Income Not Pre-Empted by State Property Tax

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    The Middle Caddoan Period in the Big Cypress Creek Drainage Basin

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    The Middle Caddoan period in the Big Cypress Creek drainage basin has been based upon a synthesis of Thurmond\u27s (1990) archaeological overview of the basin. Thurmond defines a transitional Caddoan period (dating ca. A.D. 1300-1400) from 14 sites that have ceramic assemblages combining Early Caddoan and Late Caddoan stylistic attributes. A review of these sites, along with additional information from recent archaeological investigations, suggests that the Middle Caddoan period in the Big Cypress Creek basin has an evolving cultural diversity that extends over a longer period of time, fitting well with Story\u27s definition of the period as dating from ca. A.D. 1200- 1400. Although there is an absence of documented subsistence evidence and few radiocarbon dates (only seven from four sites), there are recognizable distinctions that may be made about Middle Caddoan period settlement patterns, mortuary practices, and the material culture record in the basin. Based on these observations, and the currently available archaeological record, 38 sites in the Big Cypress Creek drainage basin may now be classified as belonging to the Middle Caddoan period

    CONSTITUTIONAL LAW-CORPORATIONS-ARTIFICIAL PERSONS AND THE FOURTEENTH AMENDMENT

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    That a corporation is a person for certain purposes within the meaning of the Fourteenth Amendment, and therefore entitled to invoke its protection, is considered by students of constitutional law to be well settled. For that reason the dissent of Justice Douglas in the recent case of Wheeling Steel Corporation v. Glander demands more than passing recognition. Therein he restates and adds his support to the view of Justice Black that the word person as used in the Fourteenth Amendment refers exclusively to human beings and affords no protection whatsoever to corporations against arbitrary state action

    The Love of the Nightingale

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    Written by Timberlake Wertenbaker Productions took place April 23-27https://ir.library.illinoisstate.edu/sotdp/1126/thumbnail.jp

    Age and individual foraging behavior predict tooth wear in Amboseli baboons

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    Teeth represent an essential component of the foraging apparatus for any mammal, and tooth wear can have significant implications for survival and reproduction. This study focuses on tooth wear in wild baboons in Amboseli, southern Kenya. We obtained mandibular and maxillary tooth impressions from 95 baboons and analyzed digital images of replicas made from these impressions. We measured tooth wear as the percent dentine exposure (PDE, the percent of the occlusal surface on which dentine was exposed), and we examined the relationship of PDE to age, behavior, and life history variables. We found that PDE increased significantly with age for both sexes in all three molar types. In females, we also tested the hypotheses that long-term patterns of feeding behavior, social dominance rank, and one measure of maternal investment (the cumulative number of months that a female had dependent infants during her lifetime) would predict tooth wear when we controlled for age. The hypothesis that feeding behavior predicted tooth wear was supported. The percent of feeding time spent consuming grass corms predicted PDE when controlling for age. However, PDE was not associated with social dominance rank or maternal investment
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